Commit | Line | Data |
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1da177e4 | 1 | /* |
643f12db | 2 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 LT |
3 | * |
4 | * | |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
1c762ca4 | 6 | * Copyright (C) 2006-2009 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
1da177e4 LT |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
a62bc916 HMH |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
21 | * 02110-1301, USA. | |
78f81cc4 BD |
22 | */ |
23 | ||
0978e012 JP |
24 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
25 | ||
420f9739 | 26 | #define TPACPI_VERSION "0.25" |
a112ceee | 27 | #define TPACPI_SYSFS_VERSION 0x020700 |
78f81cc4 BD |
28 | |
29 | /* | |
1da177e4 | 30 | * Changelog: |
4b45cc07 HMH |
31 | * 2007-10-20 changelog trimmed down |
32 | * | |
643f12db HMH |
33 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
34 | * drivers/misc. | |
f9ff43a6 HMH |
35 | * |
36 | * 2006-11-22 0.13 new maintainer | |
37 | * changelog now lives in git commit history, and will | |
38 | * not be updated further in-file. | |
837ca6dd | 39 | * |
78f81cc4 BD |
40 | * 2005-03-17 0.11 support for 600e, 770x |
41 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
4b45cc07 HMH |
42 | * |
43 | * 2005-01-16 0.9 use MODULE_VERSION | |
78f81cc4 BD |
44 | * thanks to Henrik Brix Andersen <brix@gentoo.org> |
45 | * fix parameter passing on module loading | |
46 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
47 | * thanks to Jim Radford <radford@blackbean.org> | |
48 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
49 | * thanks to Chris Wright <chrisw@osdl.org> | |
1da177e4 LT |
50 | */ |
51 | ||
0c78039f HMH |
52 | #include <linux/kernel.h> |
53 | #include <linux/module.h> | |
54 | #include <linux/init.h> | |
55 | #include <linux/types.h> | |
56 | #include <linux/string.h> | |
57 | #include <linux/list.h> | |
58 | #include <linux/mutex.h> | |
73a94d86 | 59 | #include <linux/sched.h> |
0c78039f HMH |
60 | #include <linux/kthread.h> |
61 | #include <linux/freezer.h> | |
62 | #include <linux/delay.h> | |
5a0e3ad6 | 63 | #include <linux/slab.h> |
0c78039f HMH |
64 | #include <linux/nvram.h> |
65 | #include <linux/proc_fs.h> | |
887965e6 | 66 | #include <linux/seq_file.h> |
0c78039f HMH |
67 | #include <linux/sysfs.h> |
68 | #include <linux/backlight.h> | |
69 | #include <linux/fb.h> | |
70 | #include <linux/platform_device.h> | |
71 | #include <linux/hwmon.h> | |
72 | #include <linux/hwmon-sysfs.h> | |
73 | #include <linux/input.h> | |
4fa6811b | 74 | #include <linux/leds.h> |
0e74dc26 | 75 | #include <linux/rfkill.h> |
0c78039f HMH |
76 | #include <linux/dmi.h> |
77 | #include <linux/jiffies.h> | |
78 | #include <linux/workqueue.h> | |
8b48463f LZ |
79 | #include <linux/acpi.h> |
80 | #include <linux/pci_ids.h> | |
81 | #include <linux/thinkpad_acpi.h> | |
0d204c34 HMH |
82 | #include <sound/core.h> |
83 | #include <sound/control.h> | |
84 | #include <sound/initval.h> | |
8b48463f | 85 | #include <asm/uaccess.h> |
b33c6ce5 | 86 | #include <acpi/video.h> |
0c78039f HMH |
87 | |
88 | /* ThinkPad CMOS commands */ | |
89 | #define TP_CMOS_VOLUME_DOWN 0 | |
90 | #define TP_CMOS_VOLUME_UP 1 | |
91 | #define TP_CMOS_VOLUME_MUTE 2 | |
92 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
93 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
4fa6811b HMH |
94 | #define TP_CMOS_THINKLIGHT_ON 12 |
95 | #define TP_CMOS_THINKLIGHT_OFF 13 | |
0c78039f HMH |
96 | |
97 | /* NVRAM Addresses */ | |
98 | enum tp_nvram_addr { | |
99 | TP_NVRAM_ADDR_HK2 = 0x57, | |
100 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
101 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
102 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
103 | TP_NVRAM_ADDR_MIXER = 0x60, | |
104 | }; | |
105 | ||
106 | /* NVRAM bit masks */ | |
107 | enum { | |
108 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
109 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
110 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
111 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
112 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
113 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
114 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
115 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
116 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
117 | TP_NVRAM_MASK_MUTE = 0x40, | |
118 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
119 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
120 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
121 | }; | |
122 | ||
5d756db9 HMH |
123 | /* Misc NVRAM-related */ |
124 | enum { | |
125 | TP_NVRAM_LEVEL_VOLUME_MAX = 14, | |
126 | }; | |
127 | ||
b21a15f6 | 128 | /* ACPI HIDs */ |
9fbdaeb4 MI |
129 | #define TPACPI_ACPI_IBM_HKEY_HID "IBM0068" |
130 | #define TPACPI_ACPI_LENOVO_HKEY_HID "LEN0068" | |
437e470c | 131 | #define TPACPI_ACPI_EC_HID "PNP0C09" |
b21a15f6 HMH |
132 | |
133 | /* Input IDs */ | |
134 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
135 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
136 | ||
153f8220 HMH |
137 | /* ACPI \WGSV commands */ |
138 | enum { | |
139 | TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */ | |
140 | TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */ | |
141 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */ | |
142 | TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */ | |
143 | }; | |
144 | ||
145 | /* TP_ACPI_WGSV_GET_STATE bits */ | |
146 | enum { | |
147 | TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */ | |
148 | TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */ | |
149 | TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */ | |
150 | TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */ | |
151 | TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */ | |
152 | TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */ | |
153 | TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */ | |
154 | TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */ | |
155 | TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */ | |
156 | TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ | |
157 | }; | |
b21a15f6 | 158 | |
67bcae6e HMH |
159 | /* HKEY events */ |
160 | enum tpacpi_hkey_event_t { | |
161 | /* Hotkey-related */ | |
162 | TP_HKEY_EV_HOTKEY_BASE = 0x1001, /* first hotkey (FN+F1) */ | |
163 | TP_HKEY_EV_BRGHT_UP = 0x1010, /* Brightness up */ | |
164 | TP_HKEY_EV_BRGHT_DOWN = 0x1011, /* Brightness down */ | |
165 | TP_HKEY_EV_VOL_UP = 0x1015, /* Volume up or unmute */ | |
166 | TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */ | |
167 | TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */ | |
168 | ||
169 | /* Reasons for waking up from S3/S4 */ | |
170 | TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */ | |
171 | TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404, /* undock requested, S4 */ | |
172 | TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305, /* bay ejection req, S3 */ | |
173 | TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405, /* bay ejection req, S4 */ | |
174 | TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313, /* battery empty, S3 */ | |
175 | TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413, /* battery empty, S4 */ | |
176 | ||
177 | /* Auto-sleep after eject request */ | |
178 | TP_HKEY_EV_BAYEJ_ACK = 0x3003, /* bay ejection complete */ | |
179 | TP_HKEY_EV_UNDOCK_ACK = 0x4003, /* undock complete */ | |
180 | ||
181 | /* Misc bay events */ | |
182 | TP_HKEY_EV_OPTDRV_EJ = 0x3006, /* opt. drive tray ejected */ | |
a50245af HMH |
183 | TP_HKEY_EV_HOTPLUG_DOCK = 0x4010, /* docked into hotplug dock |
184 | or port replicator */ | |
185 | TP_HKEY_EV_HOTPLUG_UNDOCK = 0x4011, /* undocked from hotplug | |
186 | dock or port replicator */ | |
67bcae6e HMH |
187 | |
188 | /* User-interface events */ | |
189 | TP_HKEY_EV_LID_CLOSE = 0x5001, /* laptop lid closed */ | |
190 | TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */ | |
191 | TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */ | |
192 | TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */ | |
193 | TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */ | |
194 | TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */ | |
195 | TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */ | |
196 | ||
2d43f671 HMH |
197 | /* Key-related user-interface events */ |
198 | TP_HKEY_EV_KEY_NUMLOCK = 0x6000, /* NumLock key pressed */ | |
199 | TP_HKEY_EV_KEY_FN = 0x6005, /* Fn key pressed? E420 */ | |
67ab6248 | 200 | TP_HKEY_EV_KEY_FN_ESC = 0x6060, /* Fn+Esc key pressed X240 */ |
2d43f671 | 201 | |
67bcae6e HMH |
202 | /* Thermal events */ |
203 | TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */ | |
204 | TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */ | |
205 | TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */ | |
206 | TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */ | |
207 | TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* thermal table changed */ | |
208 | ||
6f62bc3e RH |
209 | /* AC-related events */ |
210 | TP_HKEY_EV_AC_CHANGED = 0x6040, /* AC status changed */ | |
2d43f671 | 211 | |
67bcae6e HMH |
212 | /* Misc */ |
213 | TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ | |
214 | }; | |
215 | ||
b21a15f6 HMH |
216 | /**************************************************************************** |
217 | * Main driver | |
218 | */ | |
219 | ||
e0c7dfe7 HMH |
220 | #define TPACPI_NAME "thinkpad" |
221 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
222 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
223 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
224 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 225 | |
e0c7dfe7 HMH |
226 | #define TPACPI_PROC_DIR "ibm" |
227 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
228 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 229 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 230 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 231 | |
95e57ab2 | 232 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 233 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 234 | |
e0c7dfe7 | 235 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 236 | |
7ff8d62f | 237 | /* Debugging printk groups */ |
0c78039f | 238 | #define TPACPI_DBG_ALL 0xffff |
73a94d86 | 239 | #define TPACPI_DBG_DISCLOSETASK 0x8000 |
0c78039f HMH |
240 | #define TPACPI_DBG_INIT 0x0001 |
241 | #define TPACPI_DBG_EXIT 0x0002 | |
bee4cd9b | 242 | #define TPACPI_DBG_RFKILL 0x0004 |
56e2c200 | 243 | #define TPACPI_DBG_HKEY 0x0008 |
74a60c0f | 244 | #define TPACPI_DBG_FAN 0x0010 |
0e501834 | 245 | #define TPACPI_DBG_BRGHT 0x0020 |
329e4e18 | 246 | #define TPACPI_DBG_MIXER 0x0040 |
0c78039f | 247 | |
35ff8b9f HMH |
248 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
249 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
250 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 251 | |
0c78039f HMH |
252 | |
253 | /**************************************************************************** | |
b21a15f6 | 254 | * Driver-wide structs and misc. variables |
0c78039f HMH |
255 | */ |
256 | ||
257 | struct ibm_struct; | |
258 | ||
259 | struct tp_acpi_drv_struct { | |
260 | const struct acpi_device_id *hid; | |
261 | struct acpi_driver *driver; | |
262 | ||
263 | void (*notify) (struct ibm_struct *, u32); | |
264 | acpi_handle *handle; | |
265 | u32 type; | |
266 | struct acpi_device *device; | |
267 | }; | |
268 | ||
269 | struct ibm_struct { | |
270 | char *name; | |
271 | ||
887965e6 | 272 | int (*read) (struct seq_file *); |
0c78039f HMH |
273 | int (*write) (char *); |
274 | void (*exit) (void); | |
275 | void (*resume) (void); | |
fd3c3a42 | 276 | void (*suspend) (void); |
90d9d3c7 | 277 | void (*shutdown) (void); |
0c78039f HMH |
278 | |
279 | struct list_head all_drivers; | |
280 | ||
281 | struct tp_acpi_drv_struct *acpi; | |
282 | ||
283 | struct { | |
284 | u8 acpi_driver_registered:1; | |
285 | u8 acpi_notify_installed:1; | |
286 | u8 proc_created:1; | |
287 | u8 init_called:1; | |
288 | u8 experimental:1; | |
289 | } flags; | |
290 | }; | |
291 | ||
292 | struct ibm_init_struct { | |
293 | char param[32]; | |
294 | ||
295 | int (*init) (struct ibm_init_struct *); | |
d161a13f | 296 | umode_t base_procfs_mode; |
0c78039f HMH |
297 | struct ibm_struct *data; |
298 | }; | |
299 | ||
300 | static struct { | |
0c78039f HMH |
301 | u32 bluetooth:1; |
302 | u32 hotkey:1; | |
303 | u32 hotkey_mask:1; | |
304 | u32 hotkey_wlsw:1; | |
6c231bd5 | 305 | u32 hotkey_tablet:1; |
0c78039f HMH |
306 | u32 light:1; |
307 | u32 light_status:1; | |
b5972796 | 308 | u32 bright_acpimode:1; |
77775838 | 309 | u32 bright_unkfw:1; |
0c78039f | 310 | u32 wan:1; |
0045c0aa | 311 | u32 uwb:1; |
0c78039f | 312 | u32 fan_ctrl_status_undef:1; |
d7377247 | 313 | u32 second_fan:1; |
60201732 | 314 | u32 beep_needs_two_args:1; |
a112ceee | 315 | u32 mixer_no_level_control:1; |
0c78039f HMH |
316 | u32 input_device_registered:1; |
317 | u32 platform_drv_registered:1; | |
318 | u32 platform_drv_attrs_registered:1; | |
319 | u32 sensors_pdrv_registered:1; | |
320 | u32 sensors_pdrv_attrs_registered:1; | |
321 | u32 sensors_pdev_attrs_registered:1; | |
322 | u32 hotkey_poll_active:1; | |
f23a5bcb | 323 | u32 has_adaptive_kbd:1; |
0c78039f HMH |
324 | } tp_features; |
325 | ||
92889022 HMH |
326 | static struct { |
327 | u16 hotkey_mask_ff:1; | |
c7ac6291 | 328 | u16 volume_ctrl_forbidden:1; |
92889022 HMH |
329 | } tp_warned; |
330 | ||
0c78039f HMH |
331 | struct thinkpad_id_data { |
332 | unsigned int vendor; /* ThinkPad vendor: | |
333 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
334 | ||
335 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
336 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
337 | ||
050df107 | 338 | u16 bios_model; /* 1Y = 0x5931, 0 = unknown */ |
0c78039f | 339 | u16 ec_model; |
050df107 HMH |
340 | u16 bios_release; /* 1ZETK1WW = 0x314b, 0 = unknown */ |
341 | u16 ec_release; | |
0c78039f | 342 | |
8c74adbc HMH |
343 | char *model_str; /* ThinkPad T43 */ |
344 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 345 | }; |
0c78039f HMH |
346 | static struct thinkpad_id_data thinkpad_id; |
347 | ||
8fef502e HMH |
348 | static enum { |
349 | TPACPI_LIFE_INIT = 0, | |
350 | TPACPI_LIFE_RUNNING, | |
351 | TPACPI_LIFE_EXITING, | |
352 | } tpacpi_lifecycle; | |
353 | ||
b21a15f6 HMH |
354 | static int experimental; |
355 | static u32 dbg_level; | |
356 | ||
e0e3c061 HMH |
357 | static struct workqueue_struct *tpacpi_wq; |
358 | ||
75bd3bf2 HMH |
359 | enum led_status_t { |
360 | TPACPI_LED_OFF = 0, | |
361 | TPACPI_LED_ON, | |
362 | TPACPI_LED_BLINK, | |
363 | }; | |
364 | ||
4fa6811b HMH |
365 | /* Special LED class that can defer work */ |
366 | struct tpacpi_led_classdev { | |
367 | struct led_classdev led_classdev; | |
368 | struct work_struct work; | |
75bd3bf2 | 369 | enum led_status_t new_state; |
edf2d778 | 370 | int led; |
4fa6811b HMH |
371 | }; |
372 | ||
77775838 HMH |
373 | /* brightness level capabilities */ |
374 | static unsigned int bright_maxlvl; /* 0 = unknown */ | |
375 | ||
a73f3091 HMH |
376 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
377 | static int dbg_wlswemul; | |
90ab5ee9 | 378 | static bool tpacpi_wlsw_emulstate; |
a73f3091 | 379 | static int dbg_bluetoothemul; |
90ab5ee9 | 380 | static bool tpacpi_bluetooth_emulstate; |
a73f3091 | 381 | static int dbg_wwanemul; |
90ab5ee9 | 382 | static bool tpacpi_wwan_emulstate; |
0045c0aa | 383 | static int dbg_uwbemul; |
90ab5ee9 | 384 | static bool tpacpi_uwb_emulstate; |
a73f3091 HMH |
385 | #endif |
386 | ||
387 | ||
3dcc2c3b HMH |
388 | /************************************************************************* |
389 | * Debugging helpers | |
390 | */ | |
391 | ||
0978e012 JP |
392 | #define dbg_printk(a_dbg_level, format, arg...) \ |
393 | do { \ | |
394 | if (dbg_level & (a_dbg_level)) \ | |
395 | printk(KERN_DEBUG pr_fmt("%s: " format), \ | |
396 | __func__, ##arg); \ | |
397 | } while (0) | |
3dcc2c3b HMH |
398 | |
399 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
400 | #define vdbg_printk dbg_printk | |
401 | static const char *str_supported(int is_supported); | |
402 | #else | |
0978e012 JP |
403 | static inline const char *str_supported(int is_supported) { return ""; } |
404 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
efd85cf8 | 405 | do { if (0) no_printk(format, ##arg); } while (0) |
3dcc2c3b HMH |
406 | #endif |
407 | ||
73a94d86 HMH |
408 | static void tpacpi_log_usertask(const char * const what) |
409 | { | |
0978e012 JP |
410 | printk(KERN_DEBUG pr_fmt("%s: access by process with PID %d\n"), |
411 | what, task_tgid_vnr(current)); | |
73a94d86 HMH |
412 | } |
413 | ||
0978e012 JP |
414 | #define tpacpi_disclose_usertask(what, format, arg...) \ |
415 | do { \ | |
416 | if (unlikely((dbg_level & TPACPI_DBG_DISCLOSETASK) && \ | |
417 | (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ | |
418 | printk(KERN_DEBUG pr_fmt("%s: PID %d: " format), \ | |
419 | what, task_tgid_vnr(current), ## arg); \ | |
420 | } \ | |
421 | } while (0) | |
3dcc2c3b | 422 | |
7d95a3d5 HMH |
423 | /* |
424 | * Quirk handling helpers | |
425 | * | |
426 | * ThinkPad IDs and versions seen in the field so far | |
427 | * are two-characters from the set [0-9A-Z], i.e. base 36. | |
428 | * | |
429 | * We use values well outside that range as specials. | |
430 | */ | |
431 | ||
432 | #define TPACPI_MATCH_ANY 0xffffU | |
433 | #define TPACPI_MATCH_UNKNOWN 0U | |
434 | ||
435 | /* TPID('1', 'Y') == 0x5931 */ | |
436 | #define TPID(__c1, __c2) (((__c2) << 8) | (__c1)) | |
437 | ||
438 | #define TPACPI_Q_IBM(__id1, __id2, __quirk) \ | |
439 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
440 | .bios = TPID(__id1, __id2), \ | |
441 | .ec = TPACPI_MATCH_ANY, \ | |
442 | .quirks = (__quirk) } | |
443 | ||
444 | #define TPACPI_Q_LNV(__id1, __id2, __quirk) \ | |
445 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
446 | .bios = TPID(__id1, __id2), \ | |
447 | .ec = TPACPI_MATCH_ANY, \ | |
448 | .quirks = (__quirk) } | |
449 | ||
a112ceee HMH |
450 | #define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ |
451 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
452 | .bios = TPACPI_MATCH_ANY, \ | |
453 | .ec = TPID(__id1, __id2), \ | |
454 | .quirks = (__quirk) } | |
455 | ||
7d95a3d5 HMH |
456 | struct tpacpi_quirk { |
457 | unsigned int vendor; | |
458 | u16 bios; | |
459 | u16 ec; | |
460 | unsigned long quirks; | |
461 | }; | |
462 | ||
463 | /** | |
464 | * tpacpi_check_quirks() - search BIOS/EC version on a list | |
465 | * @qlist: array of &struct tpacpi_quirk | |
466 | * @qlist_size: number of elements in @qlist | |
467 | * | |
468 | * Iterates over a quirks list until one is found that matches the | |
469 | * ThinkPad's vendor, BIOS and EC model. | |
470 | * | |
471 | * Returns 0 if nothing matches, otherwise returns the quirks field of | |
472 | * the matching &struct tpacpi_quirk entry. | |
473 | * | |
474 | * The match criteria is: vendor, ec and bios much match. | |
475 | */ | |
476 | static unsigned long __init tpacpi_check_quirks( | |
477 | const struct tpacpi_quirk *qlist, | |
478 | unsigned int qlist_size) | |
479 | { | |
480 | while (qlist_size) { | |
481 | if ((qlist->vendor == thinkpad_id.vendor || | |
482 | qlist->vendor == TPACPI_MATCH_ANY) && | |
483 | (qlist->bios == thinkpad_id.bios_model || | |
484 | qlist->bios == TPACPI_MATCH_ANY) && | |
485 | (qlist->ec == thinkpad_id.ec_model || | |
486 | qlist->ec == TPACPI_MATCH_ANY)) | |
487 | return qlist->quirks; | |
488 | ||
489 | qlist_size--; | |
490 | qlist++; | |
491 | } | |
492 | return 0; | |
493 | } | |
494 | ||
e28393c0 HMH |
495 | static inline bool __pure __init tpacpi_is_lenovo(void) |
496 | { | |
497 | return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO; | |
498 | } | |
499 | ||
500 | static inline bool __pure __init tpacpi_is_ibm(void) | |
501 | { | |
502 | return thinkpad_id.vendor == PCI_VENDOR_ID_IBM; | |
503 | } | |
7d95a3d5 | 504 | |
56b6aeb0 HMH |
505 | /**************************************************************************** |
506 | **************************************************************************** | |
507 | * | |
508 | * ACPI Helpers and device model | |
509 | * | |
510 | **************************************************************************** | |
511 | ****************************************************************************/ | |
512 | ||
513 | /************************************************************************* | |
514 | * ACPI basic handles | |
515 | */ | |
1da177e4 | 516 | |
94954cc6 | 517 | static acpi_handle root_handle; |
437e470c | 518 | static acpi_handle ec_handle; |
1da177e4 | 519 | |
e0c7dfe7 | 520 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 | 521 | static acpi_handle object##_handle; \ |
3bd01896 | 522 | static const acpi_handle * const object##_parent __initconst = \ |
ef07a5ab HMH |
523 | &parent##_handle; \ |
524 | static char *object##_paths[] __initdata = { paths } | |
1da177e4 | 525 | |
e0c7dfe7 HMH |
526 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
527 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 528 | |
35ff8b9f HMH |
529 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
530 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
531 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
532 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 533 | ); /* all others */ |
78f81cc4 | 534 | |
e0c7dfe7 | 535 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
536 | "^HKEY", /* R30, R31 */ |
537 | "HKEY", /* all others */ | |
56b6aeb0 | 538 | ); /* 570 */ |
78f81cc4 | 539 | |
56b6aeb0 HMH |
540 | /************************************************************************* |
541 | * ACPI helpers | |
a8b7a662 HMH |
542 | */ |
543 | ||
1da177e4 | 544 | static int acpi_evalf(acpi_handle handle, |
eceeb437 | 545 | int *res, char *method, char *fmt, ...) |
1da177e4 LT |
546 | { |
547 | char *fmt0 = fmt; | |
78f81cc4 | 548 | struct acpi_object_list params; |
e0c7dfe7 | 549 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
550 | struct acpi_buffer result, *resultp; |
551 | union acpi_object out_obj; | |
552 | acpi_status status; | |
553 | va_list ap; | |
554 | char res_type; | |
555 | int success; | |
556 | int quiet; | |
1da177e4 LT |
557 | |
558 | if (!*fmt) { | |
0978e012 | 559 | pr_err("acpi_evalf() called with empty format\n"); |
1da177e4 LT |
560 | return 0; |
561 | } | |
562 | ||
563 | if (*fmt == 'q') { | |
564 | quiet = 1; | |
565 | fmt++; | |
566 | } else | |
567 | quiet = 0; | |
568 | ||
569 | res_type = *(fmt++); | |
570 | ||
571 | params.count = 0; | |
572 | params.pointer = &in_objs[0]; | |
573 | ||
574 | va_start(ap, fmt); | |
575 | while (*fmt) { | |
576 | char c = *(fmt++); | |
577 | switch (c) { | |
578 | case 'd': /* int */ | |
579 | in_objs[params.count].integer.value = va_arg(ap, int); | |
580 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
581 | break; | |
78f81cc4 | 582 | /* add more types as needed */ |
1da177e4 | 583 | default: |
0978e012 | 584 | pr_err("acpi_evalf() called " |
1da177e4 | 585 | "with invalid format character '%c'\n", c); |
21365851 | 586 | va_end(ap); |
1da177e4 LT |
587 | return 0; |
588 | } | |
589 | } | |
590 | va_end(ap); | |
591 | ||
78f81cc4 BD |
592 | if (res_type != 'v') { |
593 | result.length = sizeof(out_obj); | |
594 | result.pointer = &out_obj; | |
595 | resultp = &result; | |
596 | } else | |
597 | resultp = NULL; | |
1da177e4 | 598 | |
78f81cc4 | 599 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
600 | |
601 | switch (res_type) { | |
78f81cc4 | 602 | case 'd': /* int */ |
263f4a30 HMH |
603 | success = (status == AE_OK && |
604 | out_obj.type == ACPI_TYPE_INTEGER); | |
605 | if (success && res) | |
eceeb437 | 606 | *res = out_obj.integer.value; |
1da177e4 | 607 | break; |
78f81cc4 | 608 | case 'v': /* void */ |
1da177e4 LT |
609 | success = status == AE_OK; |
610 | break; | |
78f81cc4 | 611 | /* add more types as needed */ |
1da177e4 | 612 | default: |
0978e012 | 613 | pr_err("acpi_evalf() called " |
1da177e4 LT |
614 | "with invalid format character '%c'\n", res_type); |
615 | return 0; | |
616 | } | |
617 | ||
56b6aeb0 | 618 | if (!success && !quiet) |
0978e012 | 619 | pr_err("acpi_evalf(%s, %s, ...) failed: %s\n", |
263f4a30 | 620 | method, fmt0, acpi_format_exception(status)); |
56b6aeb0 HMH |
621 | |
622 | return success; | |
623 | } | |
624 | ||
35ff8b9f | 625 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
626 | { |
627 | int v; | |
628 | ||
629 | if (ecrd_handle) { | |
630 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
631 | return 0; | |
632 | *p = v; | |
633 | } else { | |
634 | if (ec_read(i, p) < 0) | |
635 | return 0; | |
636 | } | |
637 | ||
638 | return 1; | |
639 | } | |
640 | ||
641 | static int acpi_ec_write(int i, u8 v) | |
642 | { | |
643 | if (ecwr_handle) { | |
644 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
645 | return 0; | |
646 | } else { | |
647 | if (ec_write(i, v) < 0) | |
648 | return 0; | |
649 | } | |
650 | ||
651 | return 1; | |
652 | } | |
653 | ||
c9bea99c HMH |
654 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
655 | { | |
656 | if (!cmos_handle) | |
657 | return -ENXIO; | |
658 | ||
659 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
660 | return -EIO; | |
661 | ||
662 | return 0; | |
663 | } | |
664 | ||
56b6aeb0 HMH |
665 | /************************************************************************* |
666 | * ACPI device model | |
667 | */ | |
668 | ||
35ff8b9f HMH |
669 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
670 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
ef07a5ab | 671 | object##_paths, ARRAY_SIZE(object##_paths)) |
f74a27d4 | 672 | |
ef07a5ab HMH |
673 | static void __init drv_acpi_handle_init(const char *name, |
674 | acpi_handle *handle, const acpi_handle parent, | |
675 | char **paths, const int num_paths) | |
56b6aeb0 HMH |
676 | { |
677 | int i; | |
678 | acpi_status status; | |
679 | ||
5ae930e6 HMH |
680 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
681 | name); | |
682 | ||
56b6aeb0 HMH |
683 | for (i = 0; i < num_paths; i++) { |
684 | status = acpi_get_handle(parent, paths[i], handle); | |
685 | if (ACPI_SUCCESS(status)) { | |
5ae930e6 HMH |
686 | dbg_printk(TPACPI_DBG_INIT, |
687 | "Found ACPI handle %s for %s\n", | |
ef07a5ab | 688 | paths[i], name); |
56b6aeb0 HMH |
689 | return; |
690 | } | |
691 | } | |
692 | ||
5ae930e6 HMH |
693 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
694 | name); | |
56b6aeb0 HMH |
695 | *handle = NULL; |
696 | } | |
697 | ||
437e470c HMH |
698 | static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle, |
699 | u32 level, void *context, void **return_value) | |
700 | { | |
46445b6b AL |
701 | struct acpi_device *dev; |
702 | if (!strcmp(context, "video")) { | |
703 | if (acpi_bus_get_device(handle, &dev)) | |
704 | return AE_OK; | |
705 | if (strcmp(ACPI_VIDEO_HID, acpi_device_hid(dev))) | |
706 | return AE_OK; | |
707 | } | |
708 | ||
437e470c HMH |
709 | *(acpi_handle *)return_value = handle; |
710 | ||
711 | return AE_CTRL_TERMINATE; | |
712 | } | |
713 | ||
714 | static void __init tpacpi_acpi_handle_locate(const char *name, | |
715 | const char *hid, | |
716 | acpi_handle *handle) | |
717 | { | |
718 | acpi_status status; | |
719 | acpi_handle device_found; | |
720 | ||
46445b6b | 721 | BUG_ON(!name || !handle); |
437e470c HMH |
722 | vdbg_printk(TPACPI_DBG_INIT, |
723 | "trying to locate ACPI handle for %s, using HID %s\n", | |
46445b6b | 724 | name, hid ? hid : "NULL"); |
437e470c HMH |
725 | |
726 | memset(&device_found, 0, sizeof(device_found)); | |
727 | status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback, | |
728 | (void *)name, &device_found); | |
729 | ||
730 | *handle = NULL; | |
731 | ||
732 | if (ACPI_SUCCESS(status)) { | |
733 | *handle = device_found; | |
734 | dbg_printk(TPACPI_DBG_INIT, | |
735 | "Found ACPI handle for %s\n", name); | |
736 | } else { | |
737 | vdbg_printk(TPACPI_DBG_INIT, | |
738 | "Could not locate an ACPI handle for %s: %s\n", | |
739 | name, acpi_format_exception(status)); | |
740 | } | |
741 | } | |
742 | ||
8d376cd6 | 743 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
744 | { |
745 | struct ibm_struct *ibm = data; | |
746 | ||
8fef502e HMH |
747 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
748 | return; | |
749 | ||
8d376cd6 | 750 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
751 | return; |
752 | ||
8d376cd6 | 753 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
754 | } |
755 | ||
8d376cd6 | 756 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
757 | { |
758 | acpi_status status; | |
5ae930e6 | 759 | int rc; |
56b6aeb0 | 760 | |
8d376cd6 HMH |
761 | BUG_ON(!ibm->acpi); |
762 | ||
763 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
764 | return 0; |
765 | ||
5ae930e6 | 766 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
767 | "setting up ACPI notify for %s\n", ibm->name); |
768 | ||
5ae930e6 HMH |
769 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
770 | if (rc < 0) { | |
0978e012 | 771 | pr_err("acpi_bus_get_device(%s) failed: %d\n", ibm->name, rc); |
56b6aeb0 HMH |
772 | return -ENODEV; |
773 | } | |
774 | ||
db89b4f0 | 775 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 776 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 777 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 778 | ibm->name); |
56b6aeb0 | 779 | |
8d376cd6 HMH |
780 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
781 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
782 | if (ACPI_FAILURE(status)) { |
783 | if (status == AE_ALREADY_EXISTS) { | |
0978e012 JP |
784 | pr_notice("another device driver is already " |
785 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 786 | } else { |
0978e012 | 787 | pr_err("acpi_install_notify_handler(%s) failed: %s\n", |
72f19921 | 788 | ibm->name, acpi_format_exception(status)); |
56b6aeb0 HMH |
789 | } |
790 | return -ENODEV; | |
791 | } | |
8d376cd6 | 792 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
793 | return 0; |
794 | } | |
795 | ||
8d376cd6 | 796 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
797 | { |
798 | return 0; | |
799 | } | |
800 | ||
6700121b | 801 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 802 | { |
5ae930e6 | 803 | int rc; |
56b6aeb0 | 804 | |
fe08bc4b HMH |
805 | dbg_printk(TPACPI_DBG_INIT, |
806 | "registering %s as an ACPI driver\n", ibm->name); | |
807 | ||
8d376cd6 HMH |
808 | BUG_ON(!ibm->acpi); |
809 | ||
810 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
811 | if (!ibm->acpi->driver) { | |
0978e012 | 812 | pr_err("failed to allocate memory for ibm->acpi->driver\n"); |
5fba344c | 813 | return -ENOMEM; |
56b6aeb0 HMH |
814 | } |
815 | ||
e0c7dfe7 | 816 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 817 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 818 | |
8d376cd6 | 819 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 820 | |
5ae930e6 HMH |
821 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
822 | if (rc < 0) { | |
0978e012 | 823 | pr_err("acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 824 | ibm->name, rc); |
8d376cd6 HMH |
825 | kfree(ibm->acpi->driver); |
826 | ibm->acpi->driver = NULL; | |
5ae930e6 | 827 | } else if (!rc) |
8d376cd6 | 828 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 829 | |
5ae930e6 | 830 | return rc; |
56b6aeb0 HMH |
831 | } |
832 | ||
833 | ||
834 | /**************************************************************************** | |
835 | **************************************************************************** | |
836 | * | |
837 | * Procfs Helpers | |
838 | * | |
839 | **************************************************************************** | |
840 | ****************************************************************************/ | |
841 | ||
887965e6 | 842 | static int dispatch_proc_show(struct seq_file *m, void *v) |
56b6aeb0 | 843 | { |
887965e6 | 844 | struct ibm_struct *ibm = m->private; |
56b6aeb0 HMH |
845 | |
846 | if (!ibm || !ibm->read) | |
847 | return -EINVAL; | |
887965e6 AD |
848 | return ibm->read(m); |
849 | } | |
56b6aeb0 | 850 | |
887965e6 AD |
851 | static int dispatch_proc_open(struct inode *inode, struct file *file) |
852 | { | |
d9dda78b | 853 | return single_open(file, dispatch_proc_show, PDE_DATA(inode)); |
56b6aeb0 HMH |
854 | } |
855 | ||
887965e6 | 856 | static ssize_t dispatch_proc_write(struct file *file, |
35ff8b9f | 857 | const char __user *userbuf, |
887965e6 | 858 | size_t count, loff_t *pos) |
56b6aeb0 | 859 | { |
d9dda78b | 860 | struct ibm_struct *ibm = PDE_DATA(file_inode(file)); |
56b6aeb0 HMH |
861 | char *kernbuf; |
862 | int ret; | |
863 | ||
864 | if (!ibm || !ibm->write) | |
865 | return -EINVAL; | |
5b05d469 MB |
866 | if (count > PAGE_SIZE - 2) |
867 | return -EINVAL; | |
56b6aeb0 HMH |
868 | |
869 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
870 | if (!kernbuf) | |
871 | return -ENOMEM; | |
1da177e4 | 872 | |
56b6aeb0 HMH |
873 | if (copy_from_user(kernbuf, userbuf, count)) { |
874 | kfree(kernbuf); | |
875 | return -EFAULT; | |
876 | } | |
1da177e4 | 877 | |
56b6aeb0 HMH |
878 | kernbuf[count] = 0; |
879 | strcat(kernbuf, ","); | |
880 | ret = ibm->write(kernbuf); | |
881 | if (ret == 0) | |
882 | ret = count; | |
1da177e4 | 883 | |
56b6aeb0 HMH |
884 | kfree(kernbuf); |
885 | ||
886 | return ret; | |
1da177e4 LT |
887 | } |
888 | ||
887965e6 AD |
889 | static const struct file_operations dispatch_proc_fops = { |
890 | .owner = THIS_MODULE, | |
891 | .open = dispatch_proc_open, | |
892 | .read = seq_read, | |
893 | .llseek = seq_lseek, | |
894 | .release = single_release, | |
895 | .write = dispatch_proc_write, | |
896 | }; | |
897 | ||
1da177e4 LT |
898 | static char *next_cmd(char **cmds) |
899 | { | |
900 | char *start = *cmds; | |
901 | char *end; | |
902 | ||
903 | while ((end = strchr(start, ',')) && end == start) | |
904 | start = end + 1; | |
905 | ||
906 | if (!end) | |
907 | return NULL; | |
908 | ||
909 | *end = 0; | |
910 | *cmds = end + 1; | |
911 | return start; | |
912 | } | |
913 | ||
56b6aeb0 | 914 | |
54ae1501 HMH |
915 | /**************************************************************************** |
916 | **************************************************************************** | |
917 | * | |
7f5d1cd6 | 918 | * Device model: input, hwmon and platform |
54ae1501 HMH |
919 | * |
920 | **************************************************************************** | |
921 | ****************************************************************************/ | |
922 | ||
94954cc6 | 923 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 924 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 925 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 926 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 927 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 928 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 929 | |
3567a4e2 | 930 | #ifdef CONFIG_PM_SLEEP |
4959a781 | 931 | static int tpacpi_suspend_handler(struct device *dev) |
083f1760 HMH |
932 | { |
933 | struct ibm_struct *ibm, *itmp; | |
934 | ||
935 | list_for_each_entry_safe(ibm, itmp, | |
936 | &tpacpi_all_drivers, | |
937 | all_drivers) { | |
938 | if (ibm->suspend) | |
fd3c3a42 | 939 | (ibm->suspend)(); |
083f1760 HMH |
940 | } |
941 | ||
942 | return 0; | |
943 | } | |
944 | ||
4959a781 | 945 | static int tpacpi_resume_handler(struct device *dev) |
e295e850 HMH |
946 | { |
947 | struct ibm_struct *ibm, *itmp; | |
948 | ||
949 | list_for_each_entry_safe(ibm, itmp, | |
950 | &tpacpi_all_drivers, | |
951 | all_drivers) { | |
952 | if (ibm->resume) | |
953 | (ibm->resume)(); | |
954 | } | |
955 | ||
956 | return 0; | |
957 | } | |
3567a4e2 | 958 | #endif |
e295e850 | 959 | |
4959a781 RW |
960 | static SIMPLE_DEV_PM_OPS(tpacpi_pm, |
961 | tpacpi_suspend_handler, tpacpi_resume_handler); | |
962 | ||
90d9d3c7 HMH |
963 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
964 | { | |
965 | struct ibm_struct *ibm, *itmp; | |
966 | ||
967 | list_for_each_entry_safe(ibm, itmp, | |
968 | &tpacpi_all_drivers, | |
969 | all_drivers) { | |
970 | if (ibm->shutdown) | |
971 | (ibm->shutdown)(); | |
972 | } | |
973 | } | |
974 | ||
54ae1501 HMH |
975 | static struct platform_driver tpacpi_pdriver = { |
976 | .driver = { | |
e0c7dfe7 | 977 | .name = TPACPI_DRVR_NAME, |
4959a781 | 978 | .pm = &tpacpi_pm, |
54ae1501 | 979 | }, |
90d9d3c7 | 980 | .shutdown = tpacpi_shutdown_handler, |
54ae1501 HMH |
981 | }; |
982 | ||
7fd40029 HMH |
983 | static struct platform_driver tpacpi_hwmon_pdriver = { |
984 | .driver = { | |
e0c7dfe7 | 985 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
986 | }, |
987 | }; | |
54ae1501 | 988 | |
176750d6 | 989 | /************************************************************************* |
b21a15f6 | 990 | * sysfs support helpers |
176750d6 HMH |
991 | */ |
992 | ||
b21a15f6 HMH |
993 | struct attribute_set { |
994 | unsigned int members, max_members; | |
995 | struct attribute_group group; | |
176750d6 HMH |
996 | }; |
997 | ||
7252374a HMH |
998 | struct attribute_set_obj { |
999 | struct attribute_set s; | |
1000 | struct attribute *a; | |
1001 | } __attribute__((packed)); | |
1002 | ||
1003 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 1004 | const char *name) |
7252374a HMH |
1005 | { |
1006 | struct attribute_set_obj *sobj; | |
1007 | ||
1008 | if (max_members == 0) | |
1009 | return NULL; | |
1010 | ||
1011 | /* Allocates space for implicit NULL at the end too */ | |
1012 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
1013 | max_members * sizeof(struct attribute *), | |
1014 | GFP_KERNEL); | |
1015 | if (!sobj) | |
1016 | return NULL; | |
1017 | sobj->s.max_members = max_members; | |
1018 | sobj->s.group.attrs = &sobj->a; | |
1019 | sobj->s.group.name = name; | |
1020 | ||
1021 | return &sobj->s; | |
1022 | } | |
1023 | ||
f74a27d4 HMH |
1024 | #define destroy_attr_set(_set) \ |
1025 | kfree(_set); | |
1026 | ||
7252374a | 1027 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 1028 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
1029 | { |
1030 | if (!s || !attr) | |
1031 | return -EINVAL; | |
1032 | ||
1033 | if (s->members >= s->max_members) | |
1034 | return -ENOMEM; | |
1035 | ||
1036 | s->group.attrs[s->members] = attr; | |
1037 | s->members++; | |
1038 | ||
1039 | return 0; | |
1040 | } | |
1041 | ||
35ff8b9f | 1042 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
1043 | struct attribute **attr, |
1044 | unsigned int count) | |
1045 | { | |
1046 | int i, res; | |
1047 | ||
1048 | for (i = 0; i < count; i++) { | |
1049 | res = add_to_attr_set(s, attr[i]); | |
1050 | if (res) | |
1051 | return res; | |
1052 | } | |
1053 | ||
1054 | return 0; | |
1055 | } | |
1056 | ||
35ff8b9f | 1057 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
1058 | { |
1059 | sysfs_remove_group(kobj, &s->group); | |
1060 | destroy_attr_set(s); | |
1061 | } | |
1062 | ||
f74a27d4 HMH |
1063 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
1064 | sysfs_create_group(_kobj, &_attr_set->group) | |
1065 | ||
7252374a HMH |
1066 | static int parse_strtoul(const char *buf, |
1067 | unsigned long max, unsigned long *value) | |
1068 | { | |
1069 | char *endp; | |
1070 | ||
e7d2860b AGR |
1071 | *value = simple_strtoul(skip_spaces(buf), &endp, 0); |
1072 | endp = skip_spaces(endp); | |
7252374a HMH |
1073 | if (*endp || *value > max) |
1074 | return -EINVAL; | |
1075 | ||
1076 | return 0; | |
1077 | } | |
1078 | ||
d64c81c4 HMH |
1079 | static void tpacpi_disable_brightness_delay(void) |
1080 | { | |
1081 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
0978e012 | 1082 | pr_notice("ACPI backlight control delay disabled\n"); |
d64c81c4 HMH |
1083 | } |
1084 | ||
19d337df JB |
1085 | static void printk_deprecated_attribute(const char * const what, |
1086 | const char * const details) | |
1087 | { | |
1088 | tpacpi_log_usertask("deprecated sysfs attribute"); | |
0978e012 | 1089 | pr_warn("WARNING: sysfs attribute %s is deprecated and " |
19d337df JB |
1090 | "will be removed. %s\n", |
1091 | what, details); | |
1092 | } | |
1093 | ||
1094 | /************************************************************************* | |
1095 | * rfkill and radio control support helpers | |
1096 | */ | |
1097 | ||
1098 | /* | |
1099 | * ThinkPad-ACPI firmware handling model: | |
1100 | * | |
1101 | * WLSW (master wireless switch) is event-driven, and is common to all | |
1102 | * firmware-controlled radios. It cannot be controlled, just monitored, | |
1103 | * as expected. It overrides all radio state in firmware | |
1104 | * | |
1105 | * The kernel, a masked-off hotkey, and WLSW can change the radio state | |
1106 | * (TODO: verify how WLSW interacts with the returned radio state). | |
1107 | * | |
1108 | * The only time there are shadow radio state changes, is when | |
1109 | * masked-off hotkeys are used. | |
1110 | */ | |
1111 | ||
1112 | /* | |
1113 | * Internal driver API for radio state: | |
1114 | * | |
1115 | * int: < 0 = error, otherwise enum tpacpi_rfkill_state | |
1116 | * bool: true means radio blocked (off) | |
1117 | */ | |
1118 | enum tpacpi_rfkill_state { | |
1119 | TPACPI_RFK_RADIO_OFF = 0, | |
1120 | TPACPI_RFK_RADIO_ON | |
1121 | }; | |
1122 | ||
1123 | /* rfkill switches */ | |
1124 | enum tpacpi_rfk_id { | |
1125 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
1126 | TPACPI_RFK_WWAN_SW_ID, | |
1127 | TPACPI_RFK_UWB_SW_ID, | |
1128 | TPACPI_RFK_SW_MAX | |
1129 | }; | |
1130 | ||
1131 | static const char *tpacpi_rfkill_names[] = { | |
1132 | [TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth", | |
1133 | [TPACPI_RFK_WWAN_SW_ID] = "wwan", | |
1134 | [TPACPI_RFK_UWB_SW_ID] = "uwb", | |
1135 | [TPACPI_RFK_SW_MAX] = NULL | |
1136 | }; | |
1137 | ||
1138 | /* ThinkPad-ACPI rfkill subdriver */ | |
1139 | struct tpacpi_rfk { | |
1140 | struct rfkill *rfkill; | |
1141 | enum tpacpi_rfk_id id; | |
1142 | const struct tpacpi_rfk_ops *ops; | |
1143 | }; | |
1144 | ||
1145 | struct tpacpi_rfk_ops { | |
1146 | /* firmware interface */ | |
1147 | int (*get_status)(void); | |
1148 | int (*set_status)(const enum tpacpi_rfkill_state); | |
1149 | }; | |
1150 | ||
1151 | static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX]; | |
1152 | ||
1153 | /* Query FW and update rfkill sw state for a given rfkill switch */ | |
1154 | static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk) | |
1155 | { | |
1156 | int status; | |
1157 | ||
1158 | if (!tp_rfk) | |
1159 | return -ENODEV; | |
1160 | ||
1161 | status = (tp_rfk->ops->get_status)(); | |
1162 | if (status < 0) | |
1163 | return status; | |
1164 | ||
1165 | rfkill_set_sw_state(tp_rfk->rfkill, | |
1166 | (status == TPACPI_RFK_RADIO_OFF)); | |
1167 | ||
1168 | return status; | |
1169 | } | |
1170 | ||
1171 | /* Query FW and update rfkill sw state for all rfkill switches */ | |
1172 | static void tpacpi_rfk_update_swstate_all(void) | |
1173 | { | |
1174 | unsigned int i; | |
1175 | ||
1176 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) | |
1177 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]); | |
1178 | } | |
1179 | ||
1180 | /* | |
1181 | * Sync the HW-blocking state of all rfkill switches, | |
1182 | * do notice it causes the rfkill core to schedule uevents | |
1183 | */ | |
1184 | static void tpacpi_rfk_update_hwblock_state(bool blocked) | |
1185 | { | |
1186 | unsigned int i; | |
1187 | struct tpacpi_rfk *tp_rfk; | |
1188 | ||
1189 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) { | |
1190 | tp_rfk = tpacpi_rfkill_switches[i]; | |
1191 | if (tp_rfk) { | |
1192 | if (rfkill_set_hw_state(tp_rfk->rfkill, | |
1193 | blocked)) { | |
1194 | /* ignore -- we track sw block */ | |
1195 | } | |
1196 | } | |
1197 | } | |
1198 | } | |
1199 | ||
1200 | /* Call to get the WLSW state from the firmware */ | |
1201 | static int hotkey_get_wlsw(void); | |
1202 | ||
1203 | /* Call to query WLSW state and update all rfkill switches */ | |
1204 | static bool tpacpi_rfk_check_hwblock_state(void) | |
1205 | { | |
1206 | int res = hotkey_get_wlsw(); | |
1207 | int hw_blocked; | |
1208 | ||
1209 | /* When unknown or unsupported, we have to assume it is unblocked */ | |
1210 | if (res < 0) | |
1211 | return false; | |
1212 | ||
1213 | hw_blocked = (res == TPACPI_RFK_RADIO_OFF); | |
1214 | tpacpi_rfk_update_hwblock_state(hw_blocked); | |
1215 | ||
1216 | return hw_blocked; | |
1217 | } | |
1218 | ||
1219 | static int tpacpi_rfk_hook_set_block(void *data, bool blocked) | |
1220 | { | |
1221 | struct tpacpi_rfk *tp_rfk = data; | |
1222 | int res; | |
1223 | ||
1224 | dbg_printk(TPACPI_DBG_RFKILL, | |
1225 | "request to change radio state to %s\n", | |
1226 | blocked ? "blocked" : "unblocked"); | |
1227 | ||
1228 | /* try to set radio state */ | |
1229 | res = (tp_rfk->ops->set_status)(blocked ? | |
1230 | TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); | |
1231 | ||
1232 | /* and update the rfkill core with whatever the FW really did */ | |
1233 | tpacpi_rfk_update_swstate(tp_rfk); | |
1234 | ||
1235 | return (res < 0) ? res : 0; | |
1236 | } | |
1237 | ||
1238 | static const struct rfkill_ops tpacpi_rfk_rfkill_ops = { | |
1239 | .set_block = tpacpi_rfk_hook_set_block, | |
1240 | }; | |
1241 | ||
1242 | static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, | |
1243 | const struct tpacpi_rfk_ops *tp_rfkops, | |
0e74dc26 HMH |
1244 | const enum rfkill_type rfktype, |
1245 | const char *name, | |
19d337df | 1246 | const bool set_default) |
0e74dc26 | 1247 | { |
19d337df | 1248 | struct tpacpi_rfk *atp_rfk; |
0e74dc26 | 1249 | int res; |
06d5caf4 | 1250 | bool sw_state = false; |
5451a923 | 1251 | bool hw_state; |
06d5caf4 | 1252 | int sw_status; |
90d9d3c7 | 1253 | |
19d337df JB |
1254 | BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); |
1255 | ||
19d337df JB |
1256 | atp_rfk = kzalloc(sizeof(struct tpacpi_rfk), GFP_KERNEL); |
1257 | if (atp_rfk) | |
1258 | atp_rfk->rfkill = rfkill_alloc(name, | |
1259 | &tpacpi_pdev->dev, | |
1260 | rfktype, | |
1261 | &tpacpi_rfk_rfkill_ops, | |
1262 | atp_rfk); | |
1263 | if (!atp_rfk || !atp_rfk->rfkill) { | |
0978e012 | 1264 | pr_err("failed to allocate memory for rfkill class\n"); |
19d337df | 1265 | kfree(atp_rfk); |
0e74dc26 HMH |
1266 | return -ENOMEM; |
1267 | } | |
1268 | ||
19d337df JB |
1269 | atp_rfk->id = id; |
1270 | atp_rfk->ops = tp_rfkops; | |
0e74dc26 | 1271 | |
06d5caf4 AJ |
1272 | sw_status = (tp_rfkops->get_status)(); |
1273 | if (sw_status < 0) { | |
0978e012 JP |
1274 | pr_err("failed to read initial state for %s, error %d\n", |
1275 | name, sw_status); | |
b3fa1329 | 1276 | } else { |
06d5caf4 | 1277 | sw_state = (sw_status == TPACPI_RFK_RADIO_OFF); |
b3fa1329 AJ |
1278 | if (set_default) { |
1279 | /* try to keep the initial state, since we ask the | |
1280 | * firmware to preserve it across S5 in NVRAM */ | |
06d5caf4 | 1281 | rfkill_init_sw_state(atp_rfk->rfkill, sw_state); |
b3fa1329 AJ |
1282 | } |
1283 | } | |
5451a923 HMH |
1284 | hw_state = tpacpi_rfk_check_hwblock_state(); |
1285 | rfkill_set_hw_state(atp_rfk->rfkill, hw_state); | |
19d337df JB |
1286 | |
1287 | res = rfkill_register(atp_rfk->rfkill); | |
0e74dc26 | 1288 | if (res < 0) { |
0978e012 | 1289 | pr_err("failed to register %s rfkill switch: %d\n", name, res); |
19d337df JB |
1290 | rfkill_destroy(atp_rfk->rfkill); |
1291 | kfree(atp_rfk); | |
0e74dc26 HMH |
1292 | return res; |
1293 | } | |
1294 | ||
19d337df | 1295 | tpacpi_rfkill_switches[id] = atp_rfk; |
5451a923 | 1296 | |
0978e012 | 1297 | pr_info("rfkill switch %s: radio is %sblocked\n", |
5451a923 | 1298 | name, (sw_state || hw_state) ? "" : "un"); |
0e74dc26 HMH |
1299 | return 0; |
1300 | } | |
1301 | ||
19d337df | 1302 | static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id) |
73a94d86 | 1303 | { |
19d337df JB |
1304 | struct tpacpi_rfk *tp_rfk; |
1305 | ||
1306 | BUG_ON(id >= TPACPI_RFK_SW_MAX); | |
1307 | ||
1308 | tp_rfk = tpacpi_rfkill_switches[id]; | |
1309 | if (tp_rfk) { | |
1310 | rfkill_unregister(tp_rfk->rfkill); | |
5f0dadb4 | 1311 | rfkill_destroy(tp_rfk->rfkill); |
19d337df JB |
1312 | tpacpi_rfkill_switches[id] = NULL; |
1313 | kfree(tp_rfk); | |
1314 | } | |
73a94d86 HMH |
1315 | } |
1316 | ||
1317 | static void printk_deprecated_rfkill_attribute(const char * const what) | |
1318 | { | |
1319 | printk_deprecated_attribute(what, | |
1320 | "Please switch to generic rfkill before year 2010"); | |
1321 | } | |
1322 | ||
19d337df JB |
1323 | /* sysfs <radio> enable ------------------------------------------------ */ |
1324 | static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id, | |
1325 | struct device_attribute *attr, | |
1326 | char *buf) | |
1327 | { | |
1328 | int status; | |
1329 | ||
1330 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1331 | ||
1332 | /* This is in the ABI... */ | |
1333 | if (tpacpi_rfk_check_hwblock_state()) { | |
1334 | status = TPACPI_RFK_RADIO_OFF; | |
1335 | } else { | |
1336 | status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1337 | if (status < 0) | |
1338 | return status; | |
1339 | } | |
1340 | ||
1341 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1342 | (status == TPACPI_RFK_RADIO_ON) ? 1 : 0); | |
1343 | } | |
1344 | ||
1345 | static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, | |
1346 | struct device_attribute *attr, | |
1347 | const char *buf, size_t count) | |
1348 | { | |
1349 | unsigned long t; | |
1350 | int res; | |
1351 | ||
1352 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1353 | ||
1354 | if (parse_strtoul(buf, 1, &t)) | |
1355 | return -EINVAL; | |
1356 | ||
1357 | tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t); | |
1358 | ||
1359 | /* This is in the ABI... */ | |
1360 | if (tpacpi_rfk_check_hwblock_state() && !!t) | |
1361 | return -EPERM; | |
1362 | ||
1363 | res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ? | |
1364 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF); | |
1365 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1366 | ||
1367 | return (res < 0) ? res : count; | |
1368 | } | |
1369 | ||
1370 | /* procfs -------------------------------------------------------------- */ | |
887965e6 | 1371 | static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m) |
19d337df | 1372 | { |
19d337df | 1373 | if (id >= TPACPI_RFK_SW_MAX) |
887965e6 | 1374 | seq_printf(m, "status:\t\tnot supported\n"); |
19d337df JB |
1375 | else { |
1376 | int status; | |
1377 | ||
1378 | /* This is in the ABI... */ | |
1379 | if (tpacpi_rfk_check_hwblock_state()) { | |
1380 | status = TPACPI_RFK_RADIO_OFF; | |
1381 | } else { | |
1382 | status = tpacpi_rfk_update_swstate( | |
1383 | tpacpi_rfkill_switches[id]); | |
1384 | if (status < 0) | |
1385 | return status; | |
1386 | } | |
1387 | ||
887965e6 | 1388 | seq_printf(m, "status:\t\t%s\n", |
19d337df JB |
1389 | (status == TPACPI_RFK_RADIO_ON) ? |
1390 | "enabled" : "disabled"); | |
887965e6 | 1391 | seq_printf(m, "commands:\tenable, disable\n"); |
19d337df JB |
1392 | } |
1393 | ||
887965e6 | 1394 | return 0; |
19d337df JB |
1395 | } |
1396 | ||
1397 | static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) | |
1398 | { | |
1399 | char *cmd; | |
1400 | int status = -1; | |
1401 | int res = 0; | |
1402 | ||
1403 | if (id >= TPACPI_RFK_SW_MAX) | |
1404 | return -ENODEV; | |
1405 | ||
1406 | while ((cmd = next_cmd(&buf))) { | |
1407 | if (strlencmp(cmd, "enable") == 0) | |
1408 | status = TPACPI_RFK_RADIO_ON; | |
1409 | else if (strlencmp(cmd, "disable") == 0) | |
1410 | status = TPACPI_RFK_RADIO_OFF; | |
1411 | else | |
1412 | return -EINVAL; | |
1413 | } | |
1414 | ||
1415 | if (status != -1) { | |
1416 | tpacpi_disclose_usertask("procfs", "attempt to %s %s\n", | |
1417 | (status == TPACPI_RFK_RADIO_ON) ? | |
1418 | "enable" : "disable", | |
1419 | tpacpi_rfkill_names[id]); | |
1420 | res = (tpacpi_rfkill_switches[id]->ops->set_status)(status); | |
1421 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1422 | } | |
1423 | ||
1424 | return res; | |
1425 | } | |
1426 | ||
56b6aeb0 | 1427 | /************************************************************************* |
b21a15f6 | 1428 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
1429 | */ |
1430 | ||
b21a15f6 HMH |
1431 | /* interface_version --------------------------------------------------- */ |
1432 | static ssize_t tpacpi_driver_interface_version_show( | |
1433 | struct device_driver *drv, | |
1434 | char *buf) | |
1da177e4 | 1435 | { |
b21a15f6 HMH |
1436 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
1437 | } | |
1438 | ||
1439 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
1440 | tpacpi_driver_interface_version_show, NULL); | |
1441 | ||
1442 | /* debug_level --------------------------------------------------------- */ | |
1443 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
1444 | char *buf) | |
1445 | { | |
1446 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1447 | } | |
1448 | ||
1449 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
1450 | const char *buf, size_t count) | |
1451 | { | |
1452 | unsigned long t; | |
1453 | ||
1454 | if (parse_strtoul(buf, 0xffff, &t)) | |
1455 | return -EINVAL; | |
1456 | ||
1457 | dbg_level = t; | |
1458 | ||
1459 | return count; | |
1460 | } | |
1461 | ||
1462 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
1463 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
1464 | ||
1465 | /* version ------------------------------------------------------------- */ | |
1466 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
1467 | char *buf) | |
1468 | { | |
35ff8b9f HMH |
1469 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1470 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
1471 | } |
1472 | ||
1473 | static DRIVER_ATTR(version, S_IRUGO, | |
1474 | tpacpi_driver_version_show, NULL); | |
1475 | ||
1476 | /* --------------------------------------------------------------------- */ | |
1477 | ||
a73f3091 HMH |
1478 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1479 | ||
a73f3091 HMH |
1480 | /* wlsw_emulstate ------------------------------------------------------ */ |
1481 | static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv, | |
1482 | char *buf) | |
1483 | { | |
1484 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1485 | } | |
1486 | ||
1487 | static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv, | |
1488 | const char *buf, size_t count) | |
1489 | { | |
1490 | unsigned long t; | |
1491 | ||
1492 | if (parse_strtoul(buf, 1, &t)) | |
1493 | return -EINVAL; | |
1494 | ||
19d337df | 1495 | if (tpacpi_wlsw_emulstate != !!t) { |
a73f3091 | 1496 | tpacpi_wlsw_emulstate = !!t; |
19d337df JB |
1497 | tpacpi_rfk_update_hwblock_state(!t); /* negative logic */ |
1498 | } | |
a73f3091 HMH |
1499 | |
1500 | return count; | |
1501 | } | |
1502 | ||
1503 | static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO, | |
1504 | tpacpi_driver_wlsw_emulstate_show, | |
1505 | tpacpi_driver_wlsw_emulstate_store); | |
1506 | ||
1507 | /* bluetooth_emulstate ------------------------------------------------- */ | |
1508 | static ssize_t tpacpi_driver_bluetooth_emulstate_show( | |
1509 | struct device_driver *drv, | |
1510 | char *buf) | |
1511 | { | |
1512 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1513 | } | |
1514 | ||
1515 | static ssize_t tpacpi_driver_bluetooth_emulstate_store( | |
1516 | struct device_driver *drv, | |
1517 | const char *buf, size_t count) | |
1518 | { | |
1519 | unsigned long t; | |
1520 | ||
1521 | if (parse_strtoul(buf, 1, &t)) | |
1522 | return -EINVAL; | |
1523 | ||
1524 | tpacpi_bluetooth_emulstate = !!t; | |
1525 | ||
1526 | return count; | |
1527 | } | |
1528 | ||
1529 | static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO, | |
1530 | tpacpi_driver_bluetooth_emulstate_show, | |
1531 | tpacpi_driver_bluetooth_emulstate_store); | |
1532 | ||
1533 | /* wwan_emulstate ------------------------------------------------- */ | |
1534 | static ssize_t tpacpi_driver_wwan_emulstate_show( | |
1535 | struct device_driver *drv, | |
1536 | char *buf) | |
1537 | { | |
1538 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1539 | } | |
1540 | ||
1541 | static ssize_t tpacpi_driver_wwan_emulstate_store( | |
1542 | struct device_driver *drv, | |
1543 | const char *buf, size_t count) | |
1544 | { | |
1545 | unsigned long t; | |
1546 | ||
1547 | if (parse_strtoul(buf, 1, &t)) | |
1548 | return -EINVAL; | |
1549 | ||
1550 | tpacpi_wwan_emulstate = !!t; | |
1551 | ||
1552 | return count; | |
1553 | } | |
1554 | ||
1555 | static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO, | |
1556 | tpacpi_driver_wwan_emulstate_show, | |
1557 | tpacpi_driver_wwan_emulstate_store); | |
1558 | ||
0045c0aa HMH |
1559 | /* uwb_emulstate ------------------------------------------------- */ |
1560 | static ssize_t tpacpi_driver_uwb_emulstate_show( | |
1561 | struct device_driver *drv, | |
1562 | char *buf) | |
1563 | { | |
1564 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); | |
1565 | } | |
1566 | ||
1567 | static ssize_t tpacpi_driver_uwb_emulstate_store( | |
1568 | struct device_driver *drv, | |
1569 | const char *buf, size_t count) | |
1570 | { | |
1571 | unsigned long t; | |
1572 | ||
1573 | if (parse_strtoul(buf, 1, &t)) | |
1574 | return -EINVAL; | |
1575 | ||
1576 | tpacpi_uwb_emulstate = !!t; | |
1577 | ||
1578 | return count; | |
1579 | } | |
1580 | ||
1581 | static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO, | |
1582 | tpacpi_driver_uwb_emulstate_show, | |
1583 | tpacpi_driver_uwb_emulstate_store); | |
a73f3091 HMH |
1584 | #endif |
1585 | ||
1586 | /* --------------------------------------------------------------------- */ | |
1587 | ||
35ff8b9f | 1588 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1589 | &driver_attr_debug_level, &driver_attr_version, |
1590 | &driver_attr_interface_version, | |
1591 | }; | |
1592 | ||
1593 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1594 | { | |
1595 | int i, res; | |
1596 | ||
1597 | i = 0; | |
1598 | res = 0; | |
1599 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1600 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1601 | i++; | |
1602 | } | |
1603 | ||
a73f3091 HMH |
1604 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1605 | if (!res && dbg_wlswemul) | |
1606 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1607 | if (!res && dbg_bluetoothemul) | |
1608 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1609 | if (!res && dbg_wwanemul) | |
1610 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa HMH |
1611 | if (!res && dbg_uwbemul) |
1612 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); | |
a73f3091 HMH |
1613 | #endif |
1614 | ||
b21a15f6 HMH |
1615 | return res; |
1616 | } | |
1617 | ||
1618 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1619 | { | |
1620 | int i; | |
1621 | ||
35ff8b9f | 1622 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1623 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1624 | |
1625 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1626 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1627 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1628 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa | 1629 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
a73f3091 | 1630 | #endif |
b21a15f6 HMH |
1631 | } |
1632 | ||
600a99fa HMH |
1633 | /************************************************************************* |
1634 | * Firmware Data | |
1635 | */ | |
1636 | ||
1637 | /* | |
1638 | * Table of recommended minimum BIOS versions | |
1639 | * | |
1640 | * Reasons for listing: | |
9ddc5b6f | 1641 | * 1. Stable BIOS, listed because the unknown amount of |
600a99fa HMH |
1642 | * bugs and bad ACPI behaviour on older versions |
1643 | * | |
1644 | * 2. BIOS or EC fw with known bugs that trigger on Linux | |
1645 | * | |
1646 | * 3. BIOS with known reduced functionality in older versions | |
1647 | * | |
1648 | * We recommend the latest BIOS and EC version. | |
1649 | * We only support the latest BIOS and EC fw version as a rule. | |
1650 | * | |
1651 | * Sources: IBM ThinkPad Public Web Documents (update changelogs), | |
1652 | * Information from users in ThinkWiki | |
e675abaf HMH |
1653 | * |
1654 | * WARNING: we use this table also to detect that the machine is | |
1655 | * a ThinkPad in some cases, so don't remove entries lightly. | |
600a99fa HMH |
1656 | */ |
1657 | ||
1658 | #define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \ | |
1659 | { .vendor = (__v), \ | |
1660 | .bios = TPID(__id1, __id2), \ | |
1661 | .ec = TPACPI_MATCH_ANY, \ | |
1662 | .quirks = TPACPI_MATCH_ANY << 16 \ | |
1663 | | (__bv1) << 8 | (__bv2) } | |
1664 | ||
1665 | #define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \ | |
275014ae | 1666 | __eid, __ev1, __ev2) \ |
600a99fa HMH |
1667 | { .vendor = (__v), \ |
1668 | .bios = TPID(__bid1, __bid2), \ | |
275014ae | 1669 | .ec = __eid, \ |
600a99fa HMH |
1670 | .quirks = (__ev1) << 24 | (__ev2) << 16 \ |
1671 | | (__bv1) << 8 | (__bv2) } | |
1672 | ||
1673 | #define TPV_QI0(__id1, __id2, __bv1, __bv2) \ | |
1674 | TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2) | |
1675 | ||
275014ae | 1676 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1677 | #define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ |
1678 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
275014ae HMH |
1679 | __bv1, __bv2, TPID(__id1, __id2), \ |
1680 | __ev1, __ev2), \ | |
1681 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
1682 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1683 | __ev1, __ev2) | |
600a99fa | 1684 | |
275014ae | 1685 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1686 | #define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \ |
1687 | __eid1, __eid2, __ev1, __ev2) \ | |
1688 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
275014ae HMH |
1689 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1690 | __ev1, __ev2), \ | |
1691 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
1692 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1693 | __ev1, __ev2) | |
600a99fa HMH |
1694 | |
1695 | #define TPV_QL0(__id1, __id2, __bv1, __bv2) \ | |
1696 | TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2) | |
1697 | ||
1698 | #define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ | |
1699 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \ | |
275014ae HMH |
1700 | __bv1, __bv2, TPID(__id1, __id2), \ |
1701 | __ev1, __ev2) | |
600a99fa HMH |
1702 | |
1703 | #define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \ | |
1704 | __eid1, __eid2, __ev1, __ev2) \ | |
1705 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \ | |
275014ae HMH |
1706 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1707 | __ev1, __ev2) | |
600a99fa HMH |
1708 | |
1709 | static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { | |
1710 | /* Numeric models ------------------ */ | |
1711 | /* FW MODEL BIOS VERS */ | |
1712 | TPV_QI0('I', 'M', '6', '5'), /* 570 */ | |
1713 | TPV_QI0('I', 'U', '2', '6'), /* 570E */ | |
1714 | TPV_QI0('I', 'B', '5', '4'), /* 600 */ | |
1715 | TPV_QI0('I', 'H', '4', '7'), /* 600E */ | |
1716 | TPV_QI0('I', 'N', '3', '6'), /* 600E */ | |
1717 | TPV_QI0('I', 'T', '5', '5'), /* 600X */ | |
1718 | TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */ | |
1719 | TPV_QI0('I', 'I', '4', '2'), /* 770X */ | |
1720 | TPV_QI0('I', 'O', '2', '3'), /* 770Z */ | |
1721 | ||
1722 | /* A-series ------------------------- */ | |
1723 | /* FW MODEL BIOS VERS EC VERS */ | |
1724 | TPV_QI0('I', 'W', '5', '9'), /* A20m */ | |
1725 | TPV_QI0('I', 'V', '6', '9'), /* A20p */ | |
1726 | TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */ | |
1727 | TPV_QI0('K', 'U', '3', '6'), /* A21e */ | |
1728 | TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */ | |
1729 | TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */ | |
1730 | TPV_QI0('1', 'B', '1', '7'), /* A22e */ | |
1731 | TPV_QI0('1', '3', '2', '0'), /* A22m */ | |
1732 | TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */ | |
1733 | TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */ | |
1734 | TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */ | |
1735 | ||
1736 | /* G-series ------------------------- */ | |
1737 | /* FW MODEL BIOS VERS */ | |
1738 | TPV_QI0('1', 'T', 'A', '6'), /* G40 */ | |
1739 | TPV_QI0('1', 'X', '5', '7'), /* G41 */ | |
1740 | ||
1741 | /* R-series, T-series --------------- */ | |
1742 | /* FW MODEL BIOS VERS EC VERS */ | |
1743 | TPV_QI0('1', 'C', 'F', '0'), /* R30 */ | |
1744 | TPV_QI0('1', 'F', 'F', '1'), /* R31 */ | |
1745 | TPV_QI0('1', 'M', '9', '7'), /* R32 */ | |
1746 | TPV_QI0('1', 'O', '6', '1'), /* R40 */ | |
1747 | TPV_QI0('1', 'P', '6', '5'), /* R40 */ | |
1748 | TPV_QI0('1', 'S', '7', '0'), /* R40e */ | |
1749 | TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51, | |
1750 | T40/p, T41/p, T42/p (1) */ | |
1751 | TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */ | |
1752 | TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */ | |
1753 | TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */ | |
1754 | TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */ | |
1755 | ||
1756 | TPV_QI0('I', 'Y', '6', '1'), /* T20 */ | |
1757 | TPV_QI0('K', 'Z', '3', '4'), /* T21 */ | |
1758 | TPV_QI0('1', '6', '3', '2'), /* T22 */ | |
1759 | TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */ | |
1760 | TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */ | |
1761 | TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */ | |
1762 | ||
1763 | TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ | |
1764 | TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ | |
90765c6a | 1765 | TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ |
600a99fa HMH |
1766 | |
1767 | /* BIOS FW BIOS VERS EC FW EC VERS */ | |
1768 | TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ | |
1769 | TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */ | |
1770 | ||
1771 | /* X-series ------------------------- */ | |
1772 | /* FW MODEL BIOS VERS EC VERS */ | |
1773 | TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */ | |
1774 | TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */ | |
1775 | TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */ | |
1776 | TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */ | |
1777 | TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */ | |
1778 | TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ | |
1779 | TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ | |
1780 | ||
90765c6a HMH |
1781 | TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ |
1782 | TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ | |
600a99fa HMH |
1783 | |
1784 | /* (0) - older versions lack DMI EC fw string and functionality */ | |
1785 | /* (1) - older versions known to lack functionality */ | |
1786 | }; | |
1787 | ||
1788 | #undef TPV_QL1 | |
1789 | #undef TPV_QL0 | |
1790 | #undef TPV_QI2 | |
1791 | #undef TPV_QI1 | |
1792 | #undef TPV_QI0 | |
1793 | #undef TPV_Q_X | |
1794 | #undef TPV_Q | |
1795 | ||
1796 | static void __init tpacpi_check_outdated_fw(void) | |
1797 | { | |
1798 | unsigned long fwvers; | |
1799 | u16 ec_version, bios_version; | |
1800 | ||
1801 | fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1802 | ARRAY_SIZE(tpacpi_bios_version_qtable)); | |
1803 | ||
1804 | if (!fwvers) | |
1805 | return; | |
1806 | ||
1807 | bios_version = fwvers & 0xffffU; | |
1808 | ec_version = (fwvers >> 16) & 0xffffU; | |
1809 | ||
1810 | /* note that unknown versions are set to 0x0000 and we use that */ | |
1811 | if ((bios_version > thinkpad_id.bios_release) || | |
1812 | (ec_version > thinkpad_id.ec_release && | |
1813 | ec_version != TPACPI_MATCH_ANY)) { | |
1814 | /* | |
1815 | * The changelogs would let us track down the exact | |
1816 | * reason, but it is just too much of a pain to track | |
1817 | * it. We only list BIOSes that are either really | |
1818 | * broken, or really stable to begin with, so it is | |
1819 | * best if the user upgrades the firmware anyway. | |
1820 | */ | |
0978e012 JP |
1821 | pr_warn("WARNING: Outdated ThinkPad BIOS/EC firmware\n"); |
1822 | pr_warn("WARNING: This firmware may be missing critical bug " | |
600a99fa HMH |
1823 | "fixes and/or important features\n"); |
1824 | } | |
1825 | } | |
1826 | ||
e675abaf HMH |
1827 | static bool __init tpacpi_is_fw_known(void) |
1828 | { | |
1829 | return tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1830 | ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0; | |
1831 | } | |
1832 | ||
b21a15f6 HMH |
1833 | /**************************************************************************** |
1834 | **************************************************************************** | |
1835 | * | |
1836 | * Subdrivers | |
1837 | * | |
1838 | **************************************************************************** | |
1839 | ****************************************************************************/ | |
1840 | ||
1841 | /************************************************************************* | |
7a43f788 | 1842 | * thinkpad-acpi metadata subdriver |
b21a15f6 HMH |
1843 | */ |
1844 | ||
887965e6 | 1845 | static int thinkpad_acpi_driver_read(struct seq_file *m) |
1da177e4 | 1846 | { |
887965e6 AD |
1847 | seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC); |
1848 | seq_printf(m, "version:\t%s\n", TPACPI_VERSION); | |
1849 | return 0; | |
1da177e4 LT |
1850 | } |
1851 | ||
a5763f22 HMH |
1852 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1853 | .name = "driver", | |
1854 | .read = thinkpad_acpi_driver_read, | |
1855 | }; | |
1856 | ||
56b6aeb0 HMH |
1857 | /************************************************************************* |
1858 | * Hotkey subdriver | |
1859 | */ | |
1860 | ||
0d922e3b HMH |
1861 | /* |
1862 | * ThinkPad firmware event model | |
1863 | * | |
1864 | * The ThinkPad firmware has two main event interfaces: normal ACPI | |
1865 | * notifications (which follow the ACPI standard), and a private event | |
1866 | * interface. | |
1867 | * | |
1868 | * The private event interface also issues events for the hotkeys. As | |
1869 | * the driver gained features, the event handling code ended up being | |
1870 | * built around the hotkey subdriver. This will need to be refactored | |
1871 | * to a more formal event API eventually. | |
1872 | * | |
1873 | * Some "hotkeys" are actually supposed to be used as event reports, | |
1874 | * such as "brightness has changed", "volume has changed", depending on | |
1875 | * the ThinkPad model and how the firmware is operating. | |
1876 | * | |
1877 | * Unlike other classes, hotkey-class events have mask/unmask control on | |
1878 | * non-ancient firmware. However, how it behaves changes a lot with the | |
1879 | * firmware model and version. | |
1880 | */ | |
1881 | ||
f74a27d4 HMH |
1882 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1883 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1884 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1885 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1886 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1887 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1888 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1889 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1890 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1891 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1892 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1893 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1894 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1895 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1896 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1897 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1898 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1899 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1900 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1901 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1902 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1903 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1904 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1905 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1906 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
34a656d2 HMH |
1907 | TP_ACPI_HOTKEYSCAN_UNK1, |
1908 | TP_ACPI_HOTKEYSCAN_UNK2, | |
1909 | TP_ACPI_HOTKEYSCAN_UNK3, | |
1910 | TP_ACPI_HOTKEYSCAN_UNK4, | |
1911 | TP_ACPI_HOTKEYSCAN_UNK5, | |
1912 | TP_ACPI_HOTKEYSCAN_UNK6, | |
1913 | TP_ACPI_HOTKEYSCAN_UNK7, | |
1914 | TP_ACPI_HOTKEYSCAN_UNK8, | |
1915 | ||
6a68d855 BN |
1916 | TP_ACPI_HOTKEYSCAN_MUTE2, |
1917 | TP_ACPI_HOTKEYSCAN_BRIGHTNESS_ZERO, | |
1918 | TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL, | |
1919 | TP_ACPI_HOTKEYSCAN_CLOUD, | |
1920 | TP_ACPI_HOTKEYSCAN_UNK9, | |
1921 | TP_ACPI_HOTKEYSCAN_VOICE, | |
1922 | TP_ACPI_HOTKEYSCAN_UNK10, | |
1923 | TP_ACPI_HOTKEYSCAN_GESTURES, | |
1924 | TP_ACPI_HOTKEYSCAN_UNK11, | |
1925 | TP_ACPI_HOTKEYSCAN_UNK12, | |
1926 | TP_ACPI_HOTKEYSCAN_UNK13, | |
1927 | TP_ACPI_HOTKEYSCAN_CONFIG, | |
1928 | TP_ACPI_HOTKEYSCAN_NEW_TAB, | |
1929 | TP_ACPI_HOTKEYSCAN_RELOAD, | |
1930 | TP_ACPI_HOTKEYSCAN_BACK, | |
1931 | TP_ACPI_HOTKEYSCAN_MIC_DOWN, | |
1932 | TP_ACPI_HOTKEYSCAN_MIC_UP, | |
1933 | TP_ACPI_HOTKEYSCAN_MIC_CANCELLATION, | |
1934 | TP_ACPI_HOTKEYSCAN_CAMERA_MODE, | |
1935 | TP_ACPI_HOTKEYSCAN_ROTATE_DISPLAY, | |
1936 | ||
34a656d2 HMH |
1937 | /* Hotkey keymap size */ |
1938 | TPACPI_HOTKEY_MAP_LEN | |
f74a27d4 HMH |
1939 | }; |
1940 | ||
0d922e3b | 1941 | enum { /* Keys/events available through NVRAM polling */ |
01e88f25 HMH |
1942 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, |
1943 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1944 | }; | |
1945 | ||
1946 | enum { /* Positions of some of the keys in hotkey masks */ | |
1947 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1948 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1949 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1950 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1951 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1952 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1953 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1954 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1955 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1956 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1957 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1958 | }; | |
1959 | ||
1960 | enum { /* NVRAM to ACPI HKEY group map */ | |
1961 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1962 | TP_ACPI_HKEY_ZOOM_MASK | | |
1963 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1964 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1965 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1966 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1967 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1968 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1969 | TP_ACPI_HKEY_MUTE_MASK, | |
1970 | }; | |
1971 | ||
1972 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1973 | struct tp_nvram_state { | |
1974 | u16 thinkpad_toggle:1; | |
1975 | u16 zoom_toggle:1; | |
1976 | u16 display_toggle:1; | |
1977 | u16 thinklight_toggle:1; | |
1978 | u16 hibernate_toggle:1; | |
1979 | u16 displayexp_toggle:1; | |
1980 | u16 display_state:1; | |
1981 | u16 brightness_toggle:1; | |
1982 | u16 volume_toggle:1; | |
1983 | u16 mute:1; | |
1984 | ||
1985 | u8 brightness_level; | |
1986 | u8 volume_level; | |
1987 | }; | |
1988 | ||
db25f16d | 1989 | /* kthread for the hotkey poller */ |
01e88f25 | 1990 | static struct task_struct *tpacpi_hotkey_task; |
db25f16d | 1991 | |
db25f16d | 1992 | /* |
0d922e3b HMH |
1993 | * Acquire mutex to write poller control variables as an |
1994 | * atomic block. | |
1995 | * | |
1996 | * Increment hotkey_config_change when changing them if you | |
1997 | * want the kthread to forget old state. | |
db25f16d HMH |
1998 | * |
1999 | * See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
2000 | */ | |
01e88f25 HMH |
2001 | static struct mutex hotkey_thread_data_mutex; |
2002 | static unsigned int hotkey_config_change; | |
2003 | ||
db25f16d HMH |
2004 | /* |
2005 | * hotkey poller control variables | |
2006 | * | |
2007 | * Must be atomic or readers will also need to acquire mutex | |
0d922e3b HMH |
2008 | * |
2009 | * HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
2010 | * should be used only when the changes need to be taken as | |
2011 | * a block, OR when one needs to force the kthread to forget | |
2012 | * old state. | |
db25f16d HMH |
2013 | */ |
2014 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
2015 | static unsigned int hotkey_poll_freq = 10; /* Hz */ | |
2016 | ||
2017 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
2018 | do { \ | |
2019 | mutex_lock(&hotkey_thread_data_mutex); \ | |
2020 | hotkey_config_change++; \ | |
2021 | } while (0); | |
2022 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
2023 | mutex_unlock(&hotkey_thread_data_mutex); | |
2024 | ||
01e88f25 HMH |
2025 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2026 | ||
2027 | #define hotkey_source_mask 0U | |
db25f16d HMH |
2028 | #define HOTKEY_CONFIG_CRITICAL_START |
2029 | #define HOTKEY_CONFIG_CRITICAL_END | |
01e88f25 HMH |
2030 | |
2031 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2032 | ||
f74a27d4 HMH |
2033 | static struct mutex hotkey_mutex; |
2034 | ||
a713b4d7 HMH |
2035 | static enum { /* Reasons for waking up */ |
2036 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
2037 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
2038 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
2039 | } hotkey_wakeup_reason; | |
2040 | ||
2041 | static int hotkey_autosleep_ack; | |
2042 | ||
0d922e3b HMH |
2043 | static u32 hotkey_orig_mask; /* events the BIOS had enabled */ |
2044 | static u32 hotkey_all_mask; /* all events supported in fw */ | |
2045 | static u32 hotkey_reserved_mask; /* events better left disabled */ | |
2046 | static u32 hotkey_driver_mask; /* events needed by the driver */ | |
2047 | static u32 hotkey_user_mask; /* events visible to userspace */ | |
2048 | static u32 hotkey_acpi_mask; /* events enabled in firmware */ | |
6a38abbf | 2049 | |
edf0e0e5 | 2050 | static u16 *hotkey_keycode_map; |
78f81cc4 | 2051 | |
94954cc6 | 2052 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 2053 | |
8b468c0c HMH |
2054 | static void tpacpi_driver_event(const unsigned int hkey_event); |
2055 | static void hotkey_driver_event(const unsigned int scancode); | |
7f0cf712 | 2056 | static void hotkey_poll_setup(const bool may_warn); |
8b468c0c | 2057 | |
6c231bd5 HMH |
2058 | /* HKEY.MHKG() return bits */ |
2059 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
2060 | ||
19d337df | 2061 | static int hotkey_get_wlsw(void) |
74941a69 | 2062 | { |
19d337df JB |
2063 | int status; |
2064 | ||
2065 | if (!tp_features.hotkey_wlsw) | |
2066 | return -ENODEV; | |
2067 | ||
a73f3091 | 2068 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
19d337df JB |
2069 | if (dbg_wlswemul) |
2070 | return (tpacpi_wlsw_emulstate) ? | |
2071 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
a73f3091 | 2072 | #endif |
19d337df JB |
2073 | |
2074 | if (!acpi_evalf(hkey_handle, &status, "WLSW", "d")) | |
74941a69 | 2075 | return -EIO; |
19d337df JB |
2076 | |
2077 | return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
74941a69 HMH |
2078 | } |
2079 | ||
6c231bd5 HMH |
2080 | static int hotkey_get_tablet_mode(int *status) |
2081 | { | |
2082 | int s; | |
2083 | ||
2084 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
2085 | return -EIO; | |
2086 | ||
cee47f5a HMH |
2087 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
2088 | return 0; | |
6c231bd5 HMH |
2089 | } |
2090 | ||
b2c985e7 | 2091 | /* |
0d922e3b HMH |
2092 | * Reads current event mask from firmware, and updates |
2093 | * hotkey_acpi_mask accordingly. Also resets any bits | |
2094 | * from hotkey_user_mask that are unavailable to be | |
2095 | * delivered (shadow requirement of the userspace ABI). | |
2096 | * | |
b2c985e7 HMH |
2097 | * Call with hotkey_mutex held |
2098 | */ | |
2099 | static int hotkey_mask_get(void) | |
2100 | { | |
2101 | if (tp_features.hotkey_mask) { | |
0d922e3b HMH |
2102 | u32 m = 0; |
2103 | ||
01e88f25 | 2104 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 | 2105 | return -EIO; |
0d922e3b HMH |
2106 | |
2107 | hotkey_acpi_mask = m; | |
2108 | } else { | |
2109 | /* no mask support doesn't mean no event support... */ | |
2110 | hotkey_acpi_mask = hotkey_all_mask; | |
b2c985e7 | 2111 | } |
0d922e3b HMH |
2112 | |
2113 | /* sync userspace-visible mask */ | |
2114 | hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask); | |
b2c985e7 HMH |
2115 | |
2116 | return 0; | |
2117 | } | |
2118 | ||
df6dd1b3 | 2119 | static void hotkey_mask_warn_incomplete_mask(void) |
0d922e3b HMH |
2120 | { |
2121 | /* log only what the user can fix... */ | |
2122 | const u32 wantedmask = hotkey_driver_mask & | |
2123 | ~(hotkey_acpi_mask | hotkey_source_mask) & | |
2124 | (hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); | |
2125 | ||
2126 | if (wantedmask) | |
0978e012 | 2127 | pr_notice("required events 0x%08x not enabled!\n", wantedmask); |
0d922e3b HMH |
2128 | } |
2129 | ||
b2c985e7 | 2130 | /* |
0d922e3b HMH |
2131 | * Set the firmware mask when supported |
2132 | * | |
2133 | * Also calls hotkey_mask_get to update hotkey_acpi_mask. | |
2134 | * | |
2135 | * NOTE: does not set bits in hotkey_user_mask, but may reset them. | |
2136 | * | |
b2c985e7 HMH |
2137 | * Call with hotkey_mutex held |
2138 | */ | |
2139 | static int hotkey_mask_set(u32 mask) | |
2140 | { | |
2141 | int i; | |
2142 | int rc = 0; | |
2143 | ||
0d922e3b | 2144 | const u32 fwmask = mask & ~hotkey_source_mask; |
92889022 | 2145 | |
0d922e3b | 2146 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2147 | for (i = 0; i < 32; i++) { |
b2c985e7 HMH |
2148 | if (!acpi_evalf(hkey_handle, |
2149 | NULL, "MHKM", "vdd", i + 1, | |
0d922e3b | 2150 | !!(mask & (1 << i)))) { |
b2c985e7 HMH |
2151 | rc = -EIO; |
2152 | break; | |
b2c985e7 HMH |
2153 | } |
2154 | } | |
0d922e3b | 2155 | } |
b2c985e7 | 2156 | |
0d922e3b HMH |
2157 | /* |
2158 | * We *must* make an inconditional call to hotkey_mask_get to | |
2159 | * refresh hotkey_acpi_mask and update hotkey_user_mask | |
2160 | * | |
2161 | * Take the opportunity to also log when we cannot _enable_ | |
2162 | * a given event. | |
2163 | */ | |
2164 | if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { | |
0978e012 JP |
2165 | pr_notice("asked for hotkey mask 0x%08x, but " |
2166 | "firmware forced it to 0x%08x\n", | |
2167 | fwmask, hotkey_acpi_mask); | |
b2c985e7 HMH |
2168 | } |
2169 | ||
6b30eb7d HMH |
2170 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
2171 | hotkey_mask_warn_incomplete_mask(); | |
0d922e3b HMH |
2172 | |
2173 | return rc; | |
2174 | } | |
2175 | ||
2176 | /* | |
2177 | * Sets hotkey_user_mask and tries to set the firmware mask | |
2178 | * | |
2179 | * Call with hotkey_mutex held | |
2180 | */ | |
2181 | static int hotkey_user_mask_set(const u32 mask) | |
2182 | { | |
2183 | int rc; | |
2184 | ||
2185 | /* Give people a chance to notice they are doing something that | |
2186 | * is bound to go boom on their users sooner or later */ | |
2187 | if (!tp_warned.hotkey_mask_ff && | |
2188 | (mask == 0xffff || mask == 0xffffff || | |
2189 | mask == 0xffffffff)) { | |
2190 | tp_warned.hotkey_mask_ff = 1; | |
0978e012 JP |
2191 | pr_notice("setting the hotkey mask to 0x%08x is likely " |
2192 | "not the best way to go about it\n", mask); | |
2193 | pr_notice("please consider using the driver defaults, " | |
2194 | "and refer to up-to-date thinkpad-acpi " | |
2195 | "documentation\n"); | |
0d922e3b HMH |
2196 | } |
2197 | ||
2198 | /* Try to enable what the user asked for, plus whatever we need. | |
2199 | * this syncs everything but won't enable bits in hotkey_user_mask */ | |
2200 | rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask); | |
2201 | ||
2202 | /* Enable the available bits in hotkey_user_mask */ | |
2203 | hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask); | |
2204 | ||
b2c985e7 HMH |
2205 | return rc; |
2206 | } | |
2207 | ||
8b468c0c HMH |
2208 | /* |
2209 | * Sets the driver hotkey mask. | |
2210 | * | |
2211 | * Can be called even if the hotkey subdriver is inactive | |
2212 | */ | |
2213 | static int tpacpi_hotkey_driver_mask_set(const u32 mask) | |
2214 | { | |
2215 | int rc; | |
2216 | ||
2217 | /* Do the right thing if hotkey_init has not been called yet */ | |
2218 | if (!tp_features.hotkey) { | |
2219 | hotkey_driver_mask = mask; | |
2220 | return 0; | |
2221 | } | |
2222 | ||
2223 | mutex_lock(&hotkey_mutex); | |
2224 | ||
2225 | HOTKEY_CONFIG_CRITICAL_START | |
2226 | hotkey_driver_mask = mask; | |
b684a363 | 2227 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
8b468c0c | 2228 | hotkey_source_mask |= (mask & ~hotkey_all_mask); |
b684a363 | 2229 | #endif |
8b468c0c HMH |
2230 | HOTKEY_CONFIG_CRITICAL_END |
2231 | ||
2232 | rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) & | |
2233 | ~hotkey_source_mask); | |
7f0cf712 HMH |
2234 | hotkey_poll_setup(true); |
2235 | ||
8b468c0c HMH |
2236 | mutex_unlock(&hotkey_mutex); |
2237 | ||
2238 | return rc; | |
2239 | } | |
2240 | ||
b2c985e7 HMH |
2241 | static int hotkey_status_get(int *status) |
2242 | { | |
2243 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
2244 | return -EIO; | |
2245 | ||
2246 | return 0; | |
2247 | } | |
2248 | ||
2586d566 | 2249 | static int hotkey_status_set(bool enable) |
b2c985e7 | 2250 | { |
2586d566 | 2251 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0)) |
b2c985e7 HMH |
2252 | return -EIO; |
2253 | ||
2254 | return 0; | |
2255 | } | |
2256 | ||
6c231bd5 | 2257 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 2258 | { |
6c231bd5 | 2259 | int state; |
b3ec6f91 | 2260 | |
6c231bd5 HMH |
2261 | if (tp_features.hotkey_tablet && |
2262 | !hotkey_get_tablet_mode(&state)) { | |
2263 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 2264 | |
6c231bd5 HMH |
2265 | input_report_switch(tpacpi_inputdev, |
2266 | SW_TABLET_MODE, !!state); | |
2267 | input_sync(tpacpi_inputdev); | |
2268 | ||
2269 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2270 | } | |
b3ec6f91 HMH |
2271 | } |
2272 | ||
0d922e3b HMH |
2273 | /* Do NOT call without validating scancode first */ |
2274 | static void tpacpi_input_send_key(const unsigned int scancode) | |
b7c8c200 | 2275 | { |
0d922e3b | 2276 | const unsigned int keycode = hotkey_keycode_map[scancode]; |
b7c8c200 HMH |
2277 | |
2278 | if (keycode != KEY_RESERVED) { | |
2279 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2280 | ||
5ffba7e6 | 2281 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2282 | input_report_key(tpacpi_inputdev, keycode, 1); |
b7c8c200 HMH |
2283 | input_sync(tpacpi_inputdev); |
2284 | ||
5ffba7e6 | 2285 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2286 | input_report_key(tpacpi_inputdev, keycode, 0); |
b7c8c200 HMH |
2287 | input_sync(tpacpi_inputdev); |
2288 | ||
2289 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2290 | } | |
2291 | } | |
2292 | ||
0d922e3b HMH |
2293 | /* Do NOT call without validating scancode first */ |
2294 | static void tpacpi_input_send_key_masked(const unsigned int scancode) | |
2295 | { | |
8b468c0c | 2296 | hotkey_driver_event(scancode); |
0d922e3b HMH |
2297 | if (hotkey_user_mask & (1 << scancode)) |
2298 | tpacpi_input_send_key(scancode); | |
2299 | } | |
2300 | ||
01e88f25 HMH |
2301 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2302 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
2303 | ||
0d922e3b | 2304 | /* Do NOT call without validating scancode first */ |
01e88f25 HMH |
2305 | static void tpacpi_hotkey_send_key(unsigned int scancode) |
2306 | { | |
0d922e3b | 2307 | tpacpi_input_send_key_masked(scancode); |
01e88f25 HMH |
2308 | } |
2309 | ||
0d922e3b | 2310 | static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) |
01e88f25 HMH |
2311 | { |
2312 | u8 d; | |
2313 | ||
2314 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
2315 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
2316 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
2317 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
2318 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
2319 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
2320 | } | |
2321 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
2322 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
2323 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
2324 | } | |
2325 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
2326 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
2327 | n->displayexp_toggle = | |
2328 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
2329 | } | |
2330 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
2331 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
2332 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
2333 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
2334 | n->brightness_toggle = | |
2335 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
2336 | } | |
2337 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
2338 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
2339 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
2340 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
2341 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
2342 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
2343 | } | |
2344 | } | |
2345 | ||
2346 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
a4d44ba1 BW |
2347 | do { \ |
2348 | if ((event_mask & (1 << __scancode)) && \ | |
2349 | oldn->__member != newn->__member) \ | |
2350 | tpacpi_hotkey_send_key(__scancode); \ | |
2351 | } while (0) | |
01e88f25 HMH |
2352 | |
2353 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
a4d44ba1 BW |
2354 | do { \ |
2355 | if (event_mask & (1 << __scancode)) \ | |
2356 | tpacpi_hotkey_send_key(__scancode); \ | |
2357 | } while (0) | |
2358 | ||
2359 | static void issue_volchange(const unsigned int oldvol, | |
2360 | const unsigned int newvol, | |
2361 | const u32 event_mask) | |
2362 | { | |
2363 | unsigned int i = oldvol; | |
2364 | ||
2365 | while (i > newvol) { | |
2366 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2367 | i--; | |
5d756db9 | 2368 | } |
a4d44ba1 BW |
2369 | while (i < newvol) { |
2370 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2371 | i++; | |
2372 | } | |
2373 | } | |
5d756db9 | 2374 | |
a4d44ba1 BW |
2375 | static void issue_brightnesschange(const unsigned int oldbrt, |
2376 | const unsigned int newbrt, | |
2377 | const u32 event_mask) | |
2378 | { | |
2379 | unsigned int i = oldbrt; | |
28999022 | 2380 | |
a4d44ba1 BW |
2381 | while (i > newbrt) { |
2382 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2383 | i--; | |
28999022 | 2384 | } |
a4d44ba1 BW |
2385 | while (i < newbrt) { |
2386 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2387 | i++; | |
2388 | } | |
2389 | } | |
2390 | ||
2391 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
2392 | struct tp_nvram_state *newn, | |
2393 | const u32 event_mask) | |
2394 | { | |
28999022 | 2395 | |
01e88f25 HMH |
2396 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); |
2397 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
2398 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
2399 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
2400 | ||
2401 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
2402 | ||
2403 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
2404 | ||
5d756db9 HMH |
2405 | /* |
2406 | * Handle volume | |
2407 | * | |
2408 | * This code is supposed to duplicate the IBM firmware behaviour: | |
2409 | * - Pressing MUTE issues mute hotkey message, even when already mute | |
2410 | * - Pressing Volume up/down issues volume up/down hotkey messages, | |
c8440336 | 2411 | * even when already at maximum or minimum volume |
5d756db9 HMH |
2412 | * - The act of unmuting issues volume up/down notification, |
2413 | * depending which key was used to unmute | |
2414 | * | |
2415 | * We are constrained to what the NVRAM can tell us, which is not much | |
2416 | * and certainly not enough if more than one volume hotkey was pressed | |
2417 | * since the last poll cycle. | |
2418 | * | |
2419 | * Just to make our life interesting, some newer Lenovo ThinkPads have | |
2420 | * bugs in the BIOS and may fail to update volume_toggle properly. | |
2421 | */ | |
2422 | if (newn->mute) { | |
2423 | /* muted */ | |
2424 | if (!oldn->mute || | |
2425 | oldn->volume_toggle != newn->volume_toggle || | |
2426 | oldn->volume_level != newn->volume_level) { | |
2427 | /* recently muted, or repeated mute keypress, or | |
2428 | * multiple presses ending in mute */ | |
a4d44ba1 BW |
2429 | issue_volchange(oldn->volume_level, newn->volume_level, |
2430 | event_mask); | |
01e88f25 HMH |
2431 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); |
2432 | } | |
5d756db9 HMH |
2433 | } else { |
2434 | /* unmute */ | |
2435 | if (oldn->mute) { | |
2436 | /* recently unmuted, issue 'unmute' keypress */ | |
01e88f25 | 2437 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); |
5d756db9 HMH |
2438 | } |
2439 | if (oldn->volume_level != newn->volume_level) { | |
a4d44ba1 BW |
2440 | issue_volchange(oldn->volume_level, newn->volume_level, |
2441 | event_mask); | |
5d756db9 HMH |
2442 | } else if (oldn->volume_toggle != newn->volume_toggle) { |
2443 | /* repeated vol up/down keypress at end of scale ? */ | |
2444 | if (newn->volume_level == 0) | |
01e88f25 | 2445 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); |
5d756db9 HMH |
2446 | else if (newn->volume_level >= TP_NVRAM_LEVEL_VOLUME_MAX) |
2447 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
01e88f25 HMH |
2448 | } |
2449 | } | |
2450 | ||
2451 | /* handle brightness */ | |
28999022 HMH |
2452 | if (oldn->brightness_level != newn->brightness_level) { |
2453 | issue_brightnesschange(oldn->brightness_level, | |
a4d44ba1 | 2454 | newn->brightness_level, event_mask); |
28999022 HMH |
2455 | } else if (oldn->brightness_toggle != newn->brightness_toggle) { |
2456 | /* repeated key presses that didn't change state */ | |
2457 | if (newn->brightness_level == 0) | |
01e88f25 | 2458 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); |
28999022 HMH |
2459 | else if (newn->brightness_level >= bright_maxlvl |
2460 | && !tp_features.bright_unkfw) | |
2461 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
01e88f25 | 2462 | } |
01e88f25 HMH |
2463 | |
2464 | #undef TPACPI_COMPARE_KEY | |
2465 | #undef TPACPI_MAY_SEND_KEY | |
0d922e3b | 2466 | } |
01e88f25 | 2467 | |
0d922e3b HMH |
2468 | /* |
2469 | * Polling driver | |
2470 | * | |
2471 | * We track all events in hotkey_source_mask all the time, since | |
2472 | * most of them are edge-based. We only issue those requested by | |
2473 | * hotkey_user_mask or hotkey_driver_mask, though. | |
2474 | */ | |
01e88f25 HMH |
2475 | static int hotkey_kthread(void *data) |
2476 | { | |
2477 | struct tp_nvram_state s[2]; | |
0d922e3b | 2478 | u32 poll_mask, event_mask; |
01e88f25 HMH |
2479 | unsigned int si, so; |
2480 | unsigned long t; | |
8a32c441 | 2481 | unsigned int change_detector; |
db25f16d | 2482 | unsigned int poll_freq; |
8a32c441 | 2483 | bool was_frozen; |
01e88f25 | 2484 | |
01e88f25 HMH |
2485 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) |
2486 | goto exit; | |
2487 | ||
2488 | set_freezable(); | |
2489 | ||
2490 | so = 0; | |
2491 | si = 1; | |
2492 | t = 0; | |
2493 | ||
2494 | /* Initial state for compares */ | |
2495 | mutex_lock(&hotkey_thread_data_mutex); | |
2496 | change_detector = hotkey_config_change; | |
0d922e3b HMH |
2497 | poll_mask = hotkey_source_mask; |
2498 | event_mask = hotkey_source_mask & | |
2499 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2500 | poll_freq = hotkey_poll_freq; |
01e88f25 | 2501 | mutex_unlock(&hotkey_thread_data_mutex); |
0d922e3b | 2502 | hotkey_read_nvram(&s[so], poll_mask); |
01e88f25 | 2503 | |
db25f16d HMH |
2504 | while (!kthread_should_stop()) { |
2505 | if (t == 0) { | |
2506 | if (likely(poll_freq)) | |
2507 | t = 1000/poll_freq; | |
2508 | else | |
2509 | t = 100; /* should never happen... */ | |
2510 | } | |
01e88f25 | 2511 | t = msleep_interruptible(t); |
8a32c441 | 2512 | if (unlikely(kthread_freezable_should_stop(&was_frozen))) |
01e88f25 | 2513 | break; |
8a32c441 TH |
2514 | |
2515 | if (t > 0 && !was_frozen) | |
01e88f25 HMH |
2516 | continue; |
2517 | ||
2518 | mutex_lock(&hotkey_thread_data_mutex); | |
8a32c441 | 2519 | if (was_frozen || hotkey_config_change != change_detector) { |
01e88f25 HMH |
2520 | /* forget old state on thaw or config change */ |
2521 | si = so; | |
2522 | t = 0; | |
2523 | change_detector = hotkey_config_change; | |
2524 | } | |
0d922e3b HMH |
2525 | poll_mask = hotkey_source_mask; |
2526 | event_mask = hotkey_source_mask & | |
2527 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2528 | poll_freq = hotkey_poll_freq; |
01e88f25 HMH |
2529 | mutex_unlock(&hotkey_thread_data_mutex); |
2530 | ||
0d922e3b HMH |
2531 | if (likely(poll_mask)) { |
2532 | hotkey_read_nvram(&s[si], poll_mask); | |
01e88f25 HMH |
2533 | if (likely(si != so)) { |
2534 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
0d922e3b | 2535 | event_mask); |
01e88f25 HMH |
2536 | } |
2537 | } | |
2538 | ||
2539 | so = si; | |
2540 | si ^= 1; | |
2541 | } | |
2542 | ||
2543 | exit: | |
01e88f25 HMH |
2544 | return 0; |
2545 | } | |
2546 | ||
db25f16d | 2547 | /* call with hotkey_mutex held */ |
01e88f25 HMH |
2548 | static void hotkey_poll_stop_sync(void) |
2549 | { | |
2550 | if (tpacpi_hotkey_task) { | |
01e88f25 HMH |
2551 | kthread_stop(tpacpi_hotkey_task); |
2552 | tpacpi_hotkey_task = NULL; | |
01e88f25 HMH |
2553 | } |
2554 | } | |
2555 | ||
2556 | /* call with hotkey_mutex held */ | |
7f0cf712 | 2557 | static void hotkey_poll_setup(const bool may_warn) |
01e88f25 | 2558 | { |
0d922e3b HMH |
2559 | const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask; |
2560 | const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask; | |
db25f16d | 2561 | |
0d922e3b HMH |
2562 | if (hotkey_poll_freq > 0 && |
2563 | (poll_driver_mask || | |
2564 | (poll_user_mask && tpacpi_inputdev->users > 0))) { | |
01e88f25 HMH |
2565 | if (!tpacpi_hotkey_task) { |
2566 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 2567 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
2568 | if (IS_ERR(tpacpi_hotkey_task)) { |
2569 | tpacpi_hotkey_task = NULL; | |
0978e012 | 2570 | pr_err("could not create kernel thread " |
01e88f25 HMH |
2571 | "for hotkey polling\n"); |
2572 | } | |
2573 | } | |
2574 | } else { | |
2575 | hotkey_poll_stop_sync(); | |
0d922e3b | 2576 | if (may_warn && (poll_driver_mask || poll_user_mask) && |
db25f16d | 2577 | hotkey_poll_freq == 0) { |
0978e012 JP |
2578 | pr_notice("hot keys 0x%08x and/or events 0x%08x " |
2579 | "require polling, which is currently " | |
2580 | "disabled\n", | |
2581 | poll_user_mask, poll_driver_mask); | |
01e88f25 HMH |
2582 | } |
2583 | } | |
2584 | } | |
2585 | ||
7f0cf712 | 2586 | static void hotkey_poll_setup_safe(const bool may_warn) |
01e88f25 HMH |
2587 | { |
2588 | mutex_lock(&hotkey_mutex); | |
2589 | hotkey_poll_setup(may_warn); | |
2590 | mutex_unlock(&hotkey_mutex); | |
2591 | } | |
2592 | ||
db25f16d HMH |
2593 | /* call with hotkey_mutex held */ |
2594 | static void hotkey_poll_set_freq(unsigned int freq) | |
2595 | { | |
2596 | if (!freq) | |
2597 | hotkey_poll_stop_sync(); | |
2598 | ||
db25f16d | 2599 | hotkey_poll_freq = freq; |
db25f16d HMH |
2600 | } |
2601 | ||
1bc6b9cd HMH |
2602 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2603 | ||
7f0cf712 HMH |
2604 | static void hotkey_poll_setup(const bool __unused) |
2605 | { | |
2606 | } | |
2607 | ||
2608 | static void hotkey_poll_setup_safe(const bool __unused) | |
1bc6b9cd HMH |
2609 | { |
2610 | } | |
2611 | ||
2612 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2613 | ||
01e88f25 HMH |
2614 | static int hotkey_inputdev_open(struct input_dev *dev) |
2615 | { | |
2616 | switch (tpacpi_lifecycle) { | |
2617 | case TPACPI_LIFE_INIT: | |
01e88f25 | 2618 | case TPACPI_LIFE_RUNNING: |
db25f16d | 2619 | hotkey_poll_setup_safe(false); |
01e88f25 | 2620 | return 0; |
b589ea4c HMH |
2621 | case TPACPI_LIFE_EXITING: |
2622 | return -EBUSY; | |
01e88f25 HMH |
2623 | } |
2624 | ||
2625 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
2626 | BUG(); | |
2627 | return -EBUSY; | |
2628 | } | |
2629 | ||
2630 | static void hotkey_inputdev_close(struct input_dev *dev) | |
2631 | { | |
2632 | /* disable hotkey polling when possible */ | |
b589ea4c | 2633 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING && |
0d922e3b | 2634 | !(hotkey_source_mask & hotkey_driver_mask)) |
db25f16d | 2635 | hotkey_poll_setup_safe(false); |
01e88f25 | 2636 | } |
01e88f25 | 2637 | |
a0416420 HMH |
2638 | /* sysfs hotkey enable ------------------------------------------------- */ |
2639 | static ssize_t hotkey_enable_show(struct device *dev, | |
2640 | struct device_attribute *attr, | |
2641 | char *buf) | |
2642 | { | |
ae92bd17 | 2643 | int res, status; |
a0416420 | 2644 | |
2586d566 HMH |
2645 | printk_deprecated_attribute("hotkey_enable", |
2646 | "Hotkey reporting is always enabled"); | |
2647 | ||
b2c985e7 | 2648 | res = hotkey_status_get(&status); |
a0416420 HMH |
2649 | if (res) |
2650 | return res; | |
2651 | ||
2652 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
2653 | } | |
2654 | ||
2655 | static ssize_t hotkey_enable_store(struct device *dev, | |
2656 | struct device_attribute *attr, | |
2657 | const char *buf, size_t count) | |
2658 | { | |
2659 | unsigned long t; | |
2586d566 HMH |
2660 | |
2661 | printk_deprecated_attribute("hotkey_enable", | |
2662 | "Hotkeys can be disabled through hotkey_mask"); | |
a0416420 HMH |
2663 | |
2664 | if (parse_strtoul(buf, 1, &t)) | |
2665 | return -EINVAL; | |
2666 | ||
2586d566 HMH |
2667 | if (t == 0) |
2668 | return -EPERM; | |
a0416420 | 2669 | |
2586d566 | 2670 | return count; |
a0416420 HMH |
2671 | } |
2672 | ||
b4dd04ac | 2673 | static DEVICE_ATTR_RW(hotkey_enable); |
a0416420 HMH |
2674 | |
2675 | /* sysfs hotkey mask --------------------------------------------------- */ | |
2676 | static ssize_t hotkey_mask_show(struct device *dev, | |
2677 | struct device_attribute *attr, | |
2678 | char *buf) | |
2679 | { | |
0d922e3b | 2680 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask); |
a0416420 HMH |
2681 | } |
2682 | ||
2683 | static ssize_t hotkey_mask_store(struct device *dev, | |
2684 | struct device_attribute *attr, | |
2685 | const char *buf, size_t count) | |
2686 | { | |
2687 | unsigned long t; | |
b2c985e7 | 2688 | int res; |
a0416420 | 2689 | |
ae92bd17 | 2690 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
2691 | return -EINVAL; |
2692 | ||
7646ea88 | 2693 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
2694 | return -ERESTARTSYS; |
2695 | ||
0d922e3b | 2696 | res = hotkey_user_mask_set(t); |
01e88f25 HMH |
2697 | |
2698 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 2699 | hotkey_poll_setup(true); |
01e88f25 HMH |
2700 | #endif |
2701 | ||
b2c985e7 | 2702 | mutex_unlock(&hotkey_mutex); |
a0416420 | 2703 | |
56e2c200 HMH |
2704 | tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t); |
2705 | ||
a0416420 HMH |
2706 | return (res) ? res : count; |
2707 | } | |
2708 | ||
b4dd04ac | 2709 | static DEVICE_ATTR_RW(hotkey_mask); |
a0416420 HMH |
2710 | |
2711 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
2712 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
2713 | struct device_attribute *attr, | |
2714 | char *buf) | |
2715 | { | |
2586d566 | 2716 | return sprintf(buf, "0\n"); |
a0416420 HMH |
2717 | } |
2718 | ||
b4dd04ac | 2719 | static DEVICE_ATTR_RO(hotkey_bios_enabled); |
a0416420 HMH |
2720 | |
2721 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
2722 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
2723 | struct device_attribute *attr, | |
2724 | char *buf) | |
2725 | { | |
06777be6 HMH |
2726 | printk_deprecated_attribute("hotkey_bios_mask", |
2727 | "This attribute is useless."); | |
ae92bd17 | 2728 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
2729 | } |
2730 | ||
b4dd04ac | 2731 | static DEVICE_ATTR_RO(hotkey_bios_mask); |
a0416420 | 2732 | |
9b010de5 HMH |
2733 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2734 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
2735 | struct device_attribute *attr, | |
2736 | char *buf) | |
2737 | { | |
01e88f25 HMH |
2738 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
2739 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
2740 | } |
2741 | ||
b4dd04ac | 2742 | static DEVICE_ATTR_RO(hotkey_all_mask); |
9b010de5 HMH |
2743 | |
2744 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
2745 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
2746 | struct device_attribute *attr, | |
2747 | char *buf) | |
2748 | { | |
2749 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
2750 | (hotkey_all_mask | hotkey_source_mask) |
2751 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
2752 | } |
2753 | ||
b4dd04ac | 2754 | static DEVICE_ATTR_RO(hotkey_recommended_mask); |
9b010de5 | 2755 | |
01e88f25 HMH |
2756 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2757 | ||
2758 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
2759 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
2760 | struct device_attribute *attr, | |
2761 | char *buf) | |
2762 | { | |
2763 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
2764 | } | |
2765 | ||
2766 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
2767 | struct device_attribute *attr, | |
2768 | const char *buf, size_t count) | |
2769 | { | |
2770 | unsigned long t; | |
0d922e3b HMH |
2771 | u32 r_ev; |
2772 | int rc; | |
01e88f25 HMH |
2773 | |
2774 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
2775 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
2776 | return -EINVAL; | |
2777 | ||
7646ea88 | 2778 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2779 | return -ERESTARTSYS; |
2780 | ||
2781 | HOTKEY_CONFIG_CRITICAL_START | |
2782 | hotkey_source_mask = t; | |
2783 | HOTKEY_CONFIG_CRITICAL_END | |
2784 | ||
0d922e3b HMH |
2785 | rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) & |
2786 | ~hotkey_source_mask); | |
db25f16d | 2787 | hotkey_poll_setup(true); |
0d922e3b HMH |
2788 | |
2789 | /* check if events needed by the driver got disabled */ | |
2790 | r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask) | |
2791 | & ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK; | |
01e88f25 HMH |
2792 | |
2793 | mutex_unlock(&hotkey_mutex); | |
2794 | ||
0d922e3b | 2795 | if (rc < 0) |
0978e012 JP |
2796 | pr_err("hotkey_source_mask: " |
2797 | "failed to update the firmware event mask!\n"); | |
0d922e3b HMH |
2798 | |
2799 | if (r_ev) | |
0978e012 JP |
2800 | pr_notice("hotkey_source_mask: " |
2801 | "some important events were disabled: 0x%04x\n", | |
2802 | r_ev); | |
0d922e3b | 2803 | |
56e2c200 HMH |
2804 | tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); |
2805 | ||
0d922e3b | 2806 | return (rc < 0) ? rc : count; |
01e88f25 HMH |
2807 | } |
2808 | ||
b4dd04ac | 2809 | static DEVICE_ATTR_RW(hotkey_source_mask); |
01e88f25 HMH |
2810 | |
2811 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
2812 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
2813 | struct device_attribute *attr, | |
2814 | char *buf) | |
2815 | { | |
2816 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
2817 | } | |
2818 | ||
2819 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
2820 | struct device_attribute *attr, | |
2821 | const char *buf, size_t count) | |
2822 | { | |
2823 | unsigned long t; | |
2824 | ||
2825 | if (parse_strtoul(buf, 25, &t)) | |
2826 | return -EINVAL; | |
2827 | ||
7646ea88 | 2828 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2829 | return -ERESTARTSYS; |
2830 | ||
db25f16d HMH |
2831 | hotkey_poll_set_freq(t); |
2832 | hotkey_poll_setup(true); | |
01e88f25 | 2833 | |
01e88f25 HMH |
2834 | mutex_unlock(&hotkey_mutex); |
2835 | ||
56e2c200 HMH |
2836 | tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t); |
2837 | ||
01e88f25 HMH |
2838 | return count; |
2839 | } | |
2840 | ||
b4dd04ac | 2841 | static DEVICE_ATTR_RW(hotkey_poll_freq); |
01e88f25 HMH |
2842 | |
2843 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2844 | ||
50ebec09 | 2845 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
2846 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
2847 | struct device_attribute *attr, | |
2848 | char *buf) | |
2849 | { | |
19d337df JB |
2850 | int res; |
2851 | res = hotkey_get_wlsw(); | |
74941a69 HMH |
2852 | if (res < 0) |
2853 | return res; | |
2854 | ||
19d337df JB |
2855 | /* Opportunistic update */ |
2856 | tpacpi_rfk_update_hwblock_state((res == TPACPI_RFK_RADIO_OFF)); | |
2857 | ||
2858 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2859 | (res == TPACPI_RFK_RADIO_OFF) ? 0 : 1); | |
74941a69 HMH |
2860 | } |
2861 | ||
b4dd04ac | 2862 | static DEVICE_ATTR_RO(hotkey_radio_sw); |
74941a69 | 2863 | |
50ebec09 HMH |
2864 | static void hotkey_radio_sw_notify_change(void) |
2865 | { | |
2866 | if (tp_features.hotkey_wlsw) | |
2867 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2868 | "hotkey_radio_sw"); | |
2869 | } | |
2870 | ||
6c231bd5 HMH |
2871 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
2872 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
2873 | struct device_attribute *attr, | |
2874 | char *buf) | |
2875 | { | |
2876 | int res, s; | |
2877 | res = hotkey_get_tablet_mode(&s); | |
2878 | if (res < 0) | |
2879 | return res; | |
2880 | ||
2881 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2882 | } | |
2883 | ||
b4dd04ac | 2884 | static DEVICE_ATTR_RO(hotkey_tablet_mode); |
6c231bd5 HMH |
2885 | |
2886 | static void hotkey_tablet_mode_notify_change(void) | |
2887 | { | |
2888 | if (tp_features.hotkey_tablet) | |
2889 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2890 | "hotkey_tablet_mode"); | |
2891 | } | |
2892 | ||
50ebec09 | 2893 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
2894 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
2895 | struct device_attribute *attr, | |
2896 | char *buf) | |
2897 | { | |
2898 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
2899 | } | |
2900 | ||
5fb73bc2 | 2901 | static DEVICE_ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); |
a713b4d7 | 2902 | |
1d5a2b54 | 2903 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 | 2904 | { |
0d922e3b HMH |
2905 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2906 | "wakeup_reason"); | |
50ebec09 HMH |
2907 | } |
2908 | ||
2909 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
2910 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
2911 | struct device_attribute *attr, | |
2912 | char *buf) | |
2913 | { | |
2914 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
2915 | } | |
2916 | ||
5fb73bc2 BM |
2917 | static DEVICE_ATTR(wakeup_hotunplug_complete, S_IRUGO, |
2918 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
a713b4d7 | 2919 | |
1d5a2b54 | 2920 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 | 2921 | { |
0d922e3b HMH |
2922 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
2923 | "wakeup_hotunplug_complete"); | |
50ebec09 HMH |
2924 | } |
2925 | ||
b790ceeb BN |
2926 | /* sysfs adaptive kbd mode --------------------------------------------- */ |
2927 | ||
2928 | static int adaptive_keyboard_get_mode(void); | |
2929 | static int adaptive_keyboard_set_mode(int new_mode); | |
2930 | ||
2931 | enum ADAPTIVE_KEY_MODE { | |
2932 | HOME_MODE, | |
2933 | WEB_BROWSER_MODE, | |
2934 | WEB_CONFERENCE_MODE, | |
2935 | FUNCTION_MODE, | |
2936 | LAYFLAT_MODE | |
2937 | }; | |
2938 | ||
2939 | static ssize_t adaptive_kbd_mode_show(struct device *dev, | |
2940 | struct device_attribute *attr, | |
2941 | char *buf) | |
2942 | { | |
abf9dc0d | 2943 | int current_mode; |
b790ceeb BN |
2944 | |
2945 | current_mode = adaptive_keyboard_get_mode(); | |
2946 | if (current_mode < 0) | |
2947 | return current_mode; | |
2948 | ||
2949 | return snprintf(buf, PAGE_SIZE, "%d\n", current_mode); | |
2950 | } | |
2951 | ||
2952 | static ssize_t adaptive_kbd_mode_store(struct device *dev, | |
2953 | struct device_attribute *attr, | |
2954 | const char *buf, size_t count) | |
2955 | { | |
2956 | unsigned long t; | |
2957 | int res; | |
2958 | ||
2959 | if (parse_strtoul(buf, LAYFLAT_MODE, &t)) | |
2960 | return -EINVAL; | |
2961 | ||
2962 | res = adaptive_keyboard_set_mode(t); | |
2963 | return (res < 0) ? res : count; | |
2964 | } | |
2965 | ||
2966 | static DEVICE_ATTR_RW(adaptive_kbd_mode); | |
2967 | ||
2968 | static struct attribute *adaptive_kbd_attributes[] = { | |
2969 | &dev_attr_adaptive_kbd_mode.attr, | |
2970 | NULL | |
2971 | }; | |
2972 | ||
2973 | static const struct attribute_group adaptive_kbd_attr_group = { | |
2974 | .attrs = adaptive_kbd_attributes, | |
2975 | }; | |
2976 | ||
a0416420 HMH |
2977 | /* --------------------------------------------------------------------- */ |
2978 | ||
ff80f137 HMH |
2979 | static struct attribute *hotkey_attributes[] __initdata = { |
2980 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 2981 | &dev_attr_hotkey_bios_enabled.attr, |
0d922e3b | 2982 | &dev_attr_hotkey_bios_mask.attr, |
5fb73bc2 BM |
2983 | &dev_attr_wakeup_reason.attr, |
2984 | &dev_attr_wakeup_hotunplug_complete.attr, | |
01e88f25 HMH |
2985 | &dev_attr_hotkey_mask.attr, |
2986 | &dev_attr_hotkey_all_mask.attr, | |
2987 | &dev_attr_hotkey_recommended_mask.attr, | |
0d922e3b | 2988 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
2989 | &dev_attr_hotkey_source_mask.attr, |
2990 | &dev_attr_hotkey_poll_freq.attr, | |
2991 | #endif | |
ff80f137 HMH |
2992 | }; |
2993 | ||
19d337df JB |
2994 | /* |
2995 | * Sync both the hw and sw blocking state of all switches | |
2996 | */ | |
733e27c1 HMH |
2997 | static void tpacpi_send_radiosw_update(void) |
2998 | { | |
2999 | int wlsw; | |
3000 | ||
19d337df JB |
3001 | /* |
3002 | * We must sync all rfkill controllers *before* issuing any | |
3003 | * rfkill input events, or we will race the rfkill core input | |
3004 | * handler. | |
3005 | * | |
c8440336 | 3006 | * tpacpi_inputdev_send_mutex works as a synchronization point |
19d337df JB |
3007 | * for the above. |
3008 | * | |
3009 | * We optimize to avoid numerous calls to hotkey_get_wlsw. | |
3010 | */ | |
3011 | ||
3012 | wlsw = hotkey_get_wlsw(); | |
3013 | ||
3014 | /* Sync hw blocking state first if it is hw-blocked */ | |
3015 | if (wlsw == TPACPI_RFK_RADIO_OFF) | |
3016 | tpacpi_rfk_update_hwblock_state(true); | |
0e74dc26 | 3017 | |
19d337df JB |
3018 | /* Sync sw blocking state */ |
3019 | tpacpi_rfk_update_swstate_all(); | |
3020 | ||
3021 | /* Sync hw blocking state last if it is hw-unblocked */ | |
3022 | if (wlsw == TPACPI_RFK_RADIO_ON) | |
3023 | tpacpi_rfk_update_hwblock_state(false); | |
3024 | ||
3025 | /* Issue rfkill input event for WLSW switch */ | |
3026 | if (!(wlsw < 0)) { | |
733e27c1 HMH |
3027 | mutex_lock(&tpacpi_inputdev_send_mutex); |
3028 | ||
3029 | input_report_switch(tpacpi_inputdev, | |
19d337df | 3030 | SW_RFKILL_ALL, (wlsw > 0)); |
733e27c1 HMH |
3031 | input_sync(tpacpi_inputdev); |
3032 | ||
3033 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3034 | } | |
19d337df JB |
3035 | |
3036 | /* | |
3037 | * this can be unconditional, as we will poll state again | |
3038 | * if userspace uses the notify to read data | |
3039 | */ | |
733e27c1 HMH |
3040 | hotkey_radio_sw_notify_change(); |
3041 | } | |
3042 | ||
9c0a76e1 HMH |
3043 | static void hotkey_exit(void) |
3044 | { | |
3045 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 3046 | mutex_lock(&hotkey_mutex); |
9c0a76e1 | 3047 | hotkey_poll_stop_sync(); |
db25f16d | 3048 | mutex_unlock(&hotkey_mutex); |
9c0a76e1 HMH |
3049 | #endif |
3050 | ||
3051 | if (hotkey_dev_attributes) | |
3052 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3053 | ||
4be73005 | 3054 | dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, |
0d922e3b HMH |
3055 | "restoring original HKEY status and mask\n"); |
3056 | /* yes, there is a bitwise or below, we want the | |
3057 | * functions to be called even if one of them fail */ | |
3058 | if (((tp_features.hotkey_mask && | |
3059 | hotkey_mask_set(hotkey_orig_mask)) | | |
3060 | hotkey_status_set(false)) != 0) | |
0978e012 | 3061 | pr_err("failed to restore hot key mask " |
4be73005 | 3062 | "to BIOS defaults\n"); |
9c0a76e1 HMH |
3063 | } |
3064 | ||
de4c8cc7 HMH |
3065 | static void __init hotkey_unmap(const unsigned int scancode) |
3066 | { | |
3067 | if (hotkey_keycode_map[scancode] != KEY_RESERVED) { | |
3068 | clear_bit(hotkey_keycode_map[scancode], | |
3069 | tpacpi_inputdev->keybit); | |
3070 | hotkey_keycode_map[scancode] = KEY_RESERVED; | |
3071 | } | |
3072 | } | |
3073 | ||
0d922e3b HMH |
3074 | /* |
3075 | * HKEY quirks: | |
3076 | * TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12 | |
3077 | */ | |
3078 | ||
3079 | #define TPACPI_HK_Q_INIMASK 0x0001 | |
3080 | ||
3081 | static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = { | |
3082 | TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3083 | TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3084 | TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */ | |
3085 | TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */ | |
3086 | TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */ | |
3087 | TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */ | |
3088 | TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */ | |
3089 | TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */ | |
3090 | TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */ | |
3091 | TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */ | |
3092 | TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */ | |
3093 | TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */ | |
3094 | TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */ | |
3095 | TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */ | |
3096 | TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */ | |
3097 | TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */ | |
3098 | TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */ | |
3099 | TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */ | |
3100 | TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */ | |
3101 | }; | |
3102 | ||
fc6e7568 HMH |
3103 | typedef u16 tpacpi_keymap_entry_t; |
3104 | typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN]; | |
d1e14dca | 3105 | |
a5763f22 | 3106 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 3107 | { |
0f089147 HMH |
3108 | /* Requirements for changing the default keymaps: |
3109 | * | |
3110 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
3111 | * good reasons. Do not change them unless you have deep | |
3112 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
3113 | * the various ThinkPad models. The driver behaves | |
3114 | * differently for KEY_RESERVED: such keys have their | |
3115 | * hot key mask *unset* in mask_recommended, and also | |
3116 | * in the initial hot key mask programmed into the | |
3117 | * firmware at driver load time, which means the firm- | |
3118 | * ware may react very differently if you change them to | |
3119 | * something else; | |
3120 | * | |
3121 | * 2. You must be subscribed to the linux-thinkpad and | |
3122 | * ibm-acpi-devel mailing lists, and you should read the | |
3123 | * list archives since 2007 if you want to change the | |
3124 | * keymaps. This requirement exists so that you will | |
3125 | * know the past history of problems with the thinkpad- | |
3126 | * acpi driver keymaps, and also that you will be | |
3127 | * listening to any bug reports; | |
3128 | * | |
3129 | * 3. Do not send thinkpad-acpi specific patches directly to | |
3130 | * for merging, *ever*. Send them to the linux-acpi | |
3131 | * mailinglist for comments. Merging is to be done only | |
3132 | * through acpi-test and the ACPI maintainer. | |
3133 | * | |
3134 | * If the above is too much to ask, don't change the keymap. | |
3135 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
3136 | */ | |
d1e14dca HMH |
3137 | |
3138 | enum keymap_index { | |
3139 | TPACPI_KEYMAP_IBM_GENERIC = 0, | |
3140 | TPACPI_KEYMAP_LENOVO_GENERIC, | |
3141 | }; | |
3142 | ||
3143 | static const tpacpi_keymap_t tpacpi_keymaps[] __initconst = { | |
3144 | /* Generic keymap for IBM ThinkPads */ | |
3145 | [TPACPI_KEYMAP_IBM_GENERIC] = { | |
edf0e0e5 | 3146 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
d1e14dca | 3147 | KEY_FN_F1, KEY_BATTERY, KEY_COFFEE, KEY_SLEEP, |
edf0e0e5 HMH |
3148 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
3149 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
3150 | |
3151 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3152 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3153 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3154 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3155 | |
0d922e3b | 3156 | /* brightness: firmware always reacts to them */ |
e927c08d | 3157 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 3158 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
3159 | |
3160 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 3161 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3162 | |
edf0e0e5 HMH |
3163 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3164 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3165 | |
3166 | /* Volume: firmware always react to it and reprograms | |
3167 | * the built-in *extra* mixer. Never map it to control | |
3168 | * another mixer by default. */ | |
e927c08d HMH |
3169 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3170 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3171 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3172 | |
edf0e0e5 | 3173 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3174 | |
edf0e0e5 HMH |
3175 | /* (assignments unknown, please report if found) */ |
3176 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3177 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
6a68d855 BN |
3178 | |
3179 | /* No assignments, only used for Adaptive keyboards. */ | |
3180 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3181 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3182 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3183 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3184 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
d1e14dca HMH |
3185 | }, |
3186 | ||
3187 | /* Generic keymap for Lenovo ThinkPads */ | |
3188 | [TPACPI_KEYMAP_LENOVO_GENERIC] = { | |
edf0e0e5 HMH |
3189 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
3190 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
2b754262 | 3191 | KEY_WLAN, KEY_CAMERA, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
edf0e0e5 | 3192 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, |
0f089147 HMH |
3193 | |
3194 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3195 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3196 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3197 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3198 | |
de4c8cc7 HMH |
3199 | /* These should be enabled --only-- when ACPI video |
3200 | * is disabled (i.e. in "vendor" mode), and are handled | |
3201 | * in a special way by the init code */ | |
3202 | KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ | |
3203 | KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ | |
0f089147 | 3204 | |
edf0e0e5 | 3205 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3206 | |
edf0e0e5 HMH |
3207 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3208 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3209 | |
3210 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
3211 | * react to it and reprograms the built-in *extra* mixer. | |
3212 | * Never map it to control another mixer by default. | |
3213 | * | |
3214 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
3215 | * these over the regular keyboard, so these are no-ops, | |
3216 | * but there are still weird bugs re. MUTE, so do not | |
3217 | * change unless you get test reports from all Lenovo | |
3218 | * models. May cause the BIOS to interfere with the | |
3219 | * HDA mixer. | |
3220 | */ | |
e927c08d HMH |
3221 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3222 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3223 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3224 | |
edf0e0e5 | 3225 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3226 | |
33009557 AL |
3227 | /* (assignments unknown, please report if found) */ |
3228 | KEY_UNKNOWN, KEY_UNKNOWN, | |
3229 | ||
3230 | /* | |
3231 | * The mic mute button only sends 0x1a. It does not | |
3232 | * automatically mute the mic or change the mute light. | |
3233 | */ | |
3234 | KEY_MICMUTE, /* 0x1a: Mic mute (since ?400 or so) */ | |
3235 | ||
edf0e0e5 | 3236 | /* (assignments unknown, please report if found) */ |
33009557 | 3237 | KEY_UNKNOWN, |
8b9dd4fa HG |
3238 | |
3239 | /* Extra keys in use since the X240 / T440 / T540 */ | |
4beb81d1 | 3240 | KEY_CONFIG, KEY_SEARCH, KEY_SCALE, KEY_FILE, |
6a68d855 BN |
3241 | |
3242 | /* | |
3243 | * These are the adaptive keyboard keycodes for Carbon X1 2014. | |
3244 | * The first item in this list is the Mute button which is | |
3245 | * emitted with 0x103 through | |
3246 | * adaptive_keyboard_hotkey_notify_hotkey() when the sound | |
3247 | * symbol is held. | |
3248 | * We'll need to offset those by 0x20. | |
3249 | */ | |
3250 | KEY_RESERVED, /* Mute held, 0x103 */ | |
3251 | KEY_BRIGHTNESS_MIN, /* Backlight off */ | |
3252 | KEY_RESERVED, /* Clipping tool */ | |
3253 | KEY_RESERVED, /* Cloud */ | |
3254 | KEY_RESERVED, | |
3255 | KEY_VOICECOMMAND, /* Voice */ | |
3256 | KEY_RESERVED, | |
3257 | KEY_RESERVED, /* Gestures */ | |
3258 | KEY_RESERVED, | |
3259 | KEY_RESERVED, | |
3260 | KEY_RESERVED, | |
3261 | KEY_CONFIG, /* Settings */ | |
3262 | KEY_RESERVED, /* New tab */ | |
3263 | KEY_REFRESH, /* Reload */ | |
3264 | KEY_BACK, /* Back */ | |
3265 | KEY_RESERVED, /* Microphone down */ | |
3266 | KEY_RESERVED, /* Microphone up */ | |
3267 | KEY_RESERVED, /* Microphone cancellation */ | |
3268 | KEY_RESERVED, /* Camera mode */ | |
3269 | KEY_RESERVED, /* Rotate display, 0x116 */ | |
d1e14dca | 3270 | }, |
edf0e0e5 HMH |
3271 | }; |
3272 | ||
d1e14dca HMH |
3273 | static const struct tpacpi_quirk tpacpi_keymap_qtable[] __initconst = { |
3274 | /* Generic maps (fallback) */ | |
3275 | { | |
3276 | .vendor = PCI_VENDOR_ID_IBM, | |
3277 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3278 | .quirks = TPACPI_KEYMAP_IBM_GENERIC, | |
3279 | }, | |
3280 | { | |
3281 | .vendor = PCI_VENDOR_ID_LENOVO, | |
3282 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3283 | .quirks = TPACPI_KEYMAP_LENOVO_GENERIC, | |
3284 | }, | |
3285 | }; | |
3286 | ||
3287 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(tpacpi_keymap_t) | |
fc6e7568 | 3288 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(tpacpi_keymap_entry_t) |
edf0e0e5 | 3289 | |
6a38abbf | 3290 | int res, i; |
74941a69 | 3291 | int status; |
1b6521dc | 3292 | int hkeyv; |
d89a727a HMH |
3293 | bool radiosw_state = false; |
3294 | bool tabletsw_state = false; | |
b86c4722 | 3295 | |
0d922e3b | 3296 | unsigned long quirks; |
d1e14dca | 3297 | unsigned long keymap_id; |
0d922e3b | 3298 | |
56e2c200 HMH |
3299 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3300 | "initializing hotkey subdriver\n"); | |
fe08bc4b | 3301 | |
6a38abbf | 3302 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
3303 | BUG_ON(tpacpi_inputdev->open != NULL || |
3304 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 3305 | |
e0c7dfe7 | 3306 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 3307 | mutex_init(&hotkey_mutex); |
5fba344c | 3308 | |
01e88f25 | 3309 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
3310 | mutex_init(&hotkey_thread_data_mutex); |
3311 | #endif | |
3312 | ||
56b6aeb0 | 3313 | /* hotkey not supported on 570 */ |
d8fd94d9 | 3314 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 3315 | |
56e2c200 HMH |
3316 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3317 | "hotkeys are %s\n", | |
d8fd94d9 | 3318 | str_supported(tp_features.hotkey)); |
fe08bc4b | 3319 | |
9c0a76e1 HMH |
3320 | if (!tp_features.hotkey) |
3321 | return 1; | |
a0416420 | 3322 | |
f23a5bcb BN |
3323 | /* |
3324 | * Check if we have an adaptive keyboard, like on the | |
3325 | * Lenovo Carbon X1 2014 (2nd Gen). | |
3326 | */ | |
3327 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
b790ceeb | 3328 | if ((hkeyv >> 8) == 2) { |
f23a5bcb | 3329 | tp_features.has_adaptive_kbd = true; |
b790ceeb BN |
3330 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, |
3331 | &adaptive_kbd_attr_group); | |
3332 | if (res) | |
3333 | goto err_exit; | |
3334 | } | |
f23a5bcb BN |
3335 | } |
3336 | ||
0d922e3b HMH |
3337 | quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, |
3338 | ARRAY_SIZE(tpacpi_hotkey_qtable)); | |
3339 | ||
d64c81c4 HMH |
3340 | tpacpi_disable_brightness_delay(); |
3341 | ||
0d922e3b HMH |
3342 | /* MUST have enough space for all attributes to be added to |
3343 | * hotkey_dev_attributes */ | |
3344 | hotkey_dev_attributes = create_attr_set( | |
3345 | ARRAY_SIZE(hotkey_attributes) + 2, | |
3346 | NULL); | |
9c0a76e1 HMH |
3347 | if (!hotkey_dev_attributes) |
3348 | return -ENOMEM; | |
3349 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
3350 | hotkey_attributes, | |
3351 | ARRAY_SIZE(hotkey_attributes)); | |
3352 | if (res) | |
3353 | goto err_exit; | |
3354 | ||
0d922e3b | 3355 | /* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p, |
9c0a76e1 HMH |
3356 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
3357 | for HKEY interface version 0x100 */ | |
3358 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
3359 | if ((hkeyv >> 8) != 1) { | |
0978e012 JP |
3360 | pr_err("unknown version of the HKEY interface: 0x%x\n", |
3361 | hkeyv); | |
3362 | pr_err("please report this to %s\n", TPACPI_MAIL); | |
9c0a76e1 HMH |
3363 | } else { |
3364 | /* | |
3365 | * MHKV 0x100 in A31, R40, R40e, | |
3366 | * T4x, X31, and later | |
3367 | */ | |
56e2c200 HMH |
3368 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3369 | "firmware HKEY interface version: 0x%x\n", | |
3370 | hkeyv); | |
0d922e3b HMH |
3371 | |
3372 | /* Paranoia check AND init hotkey_all_mask */ | |
3373 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3374 | "MHKA", "qd")) { | |
0978e012 | 3375 | pr_err("missing MHKA handler, " |
0d922e3b HMH |
3376 | "please report this to %s\n", |
3377 | TPACPI_MAIL); | |
3378 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3379 | hotkey_all_mask = 0x080cU; | |
3380 | } else { | |
3381 | tp_features.hotkey_mask = 1; | |
3382 | } | |
1b6521dc | 3383 | } |
9c0a76e1 | 3384 | } |
56b6aeb0 | 3385 | |
56e2c200 HMH |
3386 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3387 | "hotkey masks are %s\n", | |
9c0a76e1 | 3388 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 3389 | |
0d922e3b HMH |
3390 | /* Init hotkey_all_mask if not initialized yet */ |
3391 | if (!tp_features.hotkey_mask && !hotkey_all_mask && | |
3392 | (quirks & TPACPI_HK_Q_INIMASK)) | |
3393 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
9b010de5 | 3394 | |
0d922e3b | 3395 | /* Init hotkey_acpi_mask and hotkey_orig_mask */ |
9c0a76e1 | 3396 | if (tp_features.hotkey_mask) { |
0d922e3b HMH |
3397 | /* hotkey_source_mask *must* be zero for |
3398 | * the first hotkey_mask_get to return hotkey_orig_mask */ | |
9c0a76e1 HMH |
3399 | res = hotkey_mask_get(); |
3400 | if (res) | |
3401 | goto err_exit; | |
3402 | ||
0d922e3b HMH |
3403 | hotkey_orig_mask = hotkey_acpi_mask; |
3404 | } else { | |
3405 | hotkey_orig_mask = hotkey_all_mask; | |
3406 | hotkey_acpi_mask = hotkey_all_mask; | |
9c0a76e1 | 3407 | } |
74941a69 | 3408 | |
a73f3091 HMH |
3409 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3410 | if (dbg_wlswemul) { | |
3411 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3412 | radiosw_state = !!tpacpi_wlsw_emulstate; |
0978e012 | 3413 | pr_info("radio switch emulation enabled\n"); |
a73f3091 HMH |
3414 | } else |
3415 | #endif | |
9c0a76e1 HMH |
3416 | /* Not all thinkpads have a hardware radio switch */ |
3417 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
3418 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3419 | radiosw_state = !!status; |
0978e012 | 3420 | pr_info("radio switch found; radios are %s\n", |
9c0a76e1 | 3421 | enabled(status, 0)); |
3a872080 HMH |
3422 | } |
3423 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
3424 | res = add_to_attr_set(hotkey_dev_attributes, |
3425 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 3426 | |
9c0a76e1 HMH |
3427 | /* For X41t, X60t, X61t Tablets... */ |
3428 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
3429 | tp_features.hotkey_tablet = 1; | |
d89a727a | 3430 | tabletsw_state = !!(status & TP_HOTKEY_TABLET_MASK); |
0978e012 | 3431 | pr_info("possible tablet mode switch found; " |
9c0a76e1 | 3432 | "ThinkPad in %s mode\n", |
d89a727a | 3433 | (tabletsw_state) ? "tablet" : "laptop"); |
9c0a76e1 HMH |
3434 | res = add_to_attr_set(hotkey_dev_attributes, |
3435 | &dev_attr_hotkey_tablet_mode.attr); | |
3436 | } | |
6c231bd5 | 3437 | |
9c0a76e1 HMH |
3438 | if (!res) |
3439 | res = register_attr_set_with_sysfs( | |
3440 | hotkey_dev_attributes, | |
3441 | &tpacpi_pdev->dev.kobj); | |
3442 | if (res) | |
3443 | goto err_exit; | |
6a38abbf | 3444 | |
9c0a76e1 | 3445 | /* Set up key map */ |
9c0a76e1 HMH |
3446 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, |
3447 | GFP_KERNEL); | |
3448 | if (!hotkey_keycode_map) { | |
0978e012 | 3449 | pr_err("failed to allocate memory for key map\n"); |
9c0a76e1 HMH |
3450 | res = -ENOMEM; |
3451 | goto err_exit; | |
3452 | } | |
edf0e0e5 | 3453 | |
d1e14dca HMH |
3454 | keymap_id = tpacpi_check_quirks(tpacpi_keymap_qtable, |
3455 | ARRAY_SIZE(tpacpi_keymap_qtable)); | |
3456 | BUG_ON(keymap_id >= ARRAY_SIZE(tpacpi_keymaps)); | |
3457 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3458 | "using keymap number %lu\n", keymap_id); | |
3459 | ||
3460 | memcpy(hotkey_keycode_map, &tpacpi_keymaps[keymap_id], | |
3461 | TPACPI_HOTKEY_MAP_SIZE); | |
edf0e0e5 | 3462 | |
792979c8 | 3463 | input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); |
9c0a76e1 HMH |
3464 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
3465 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
3466 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
3467 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
3468 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
792979c8 HMH |
3469 | input_set_capability(tpacpi_inputdev, EV_KEY, |
3470 | hotkey_keycode_map[i]); | |
9c0a76e1 HMH |
3471 | } else { |
3472 | if (i < sizeof(hotkey_reserved_mask)*8) | |
3473 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 3474 | } |
9c0a76e1 | 3475 | } |
6a38abbf | 3476 | |
9c0a76e1 | 3477 | if (tp_features.hotkey_wlsw) { |
792979c8 | 3478 | input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); |
d89a727a HMH |
3479 | input_report_switch(tpacpi_inputdev, |
3480 | SW_RFKILL_ALL, radiosw_state); | |
9c0a76e1 HMH |
3481 | } |
3482 | if (tp_features.hotkey_tablet) { | |
792979c8 | 3483 | input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); |
d89a727a HMH |
3484 | input_report_switch(tpacpi_inputdev, |
3485 | SW_TABLET_MODE, tabletsw_state); | |
9c0a76e1 | 3486 | } |
5c29d58f | 3487 | |
9c0a76e1 | 3488 | /* Do not issue duplicate brightness change events to |
77775838 HMH |
3489 | * userspace. tpacpi_detect_brightness_capabilities() must have |
3490 | * been called before this point */ | |
b33c6ce5 | 3491 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { |
0978e012 JP |
3492 | pr_info("This ThinkPad has standard ACPI backlight " |
3493 | "brightness control, supported by the ACPI " | |
3494 | "video driver\n"); | |
3495 | pr_notice("Disabling thinkpad-acpi brightness events " | |
3496 | "by default...\n"); | |
9c0a76e1 | 3497 | |
de4c8cc7 HMH |
3498 | /* Disable brightness up/down on Lenovo thinkpads when |
3499 | * ACPI is handling them, otherwise it is plain impossible | |
3500 | * for userspace to do something even remotely sane */ | |
9c0a76e1 HMH |
3501 | hotkey_reserved_mask |= |
3502 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
3503 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
de4c8cc7 HMH |
3504 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME); |
3505 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND); | |
9c0a76e1 | 3506 | } |
ff80f137 | 3507 | |
230d8cf2 | 3508 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
0d922e3b HMH |
3509 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK |
3510 | & ~hotkey_all_mask | |
3511 | & ~hotkey_reserved_mask; | |
230d8cf2 HMH |
3512 | |
3513 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3514 | "hotkey source mask 0x%08x, polling freq %u\n", | |
3515 | hotkey_source_mask, hotkey_poll_freq); | |
3516 | #endif | |
3517 | ||
56e2c200 HMH |
3518 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3519 | "enabling firmware HKEY event interface...\n"); | |
2586d566 | 3520 | res = hotkey_status_set(true); |
9c0a76e1 HMH |
3521 | if (res) { |
3522 | hotkey_exit(); | |
3523 | return res; | |
3524 | } | |
0d922e3b HMH |
3525 | res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask) |
3526 | | hotkey_driver_mask) | |
3527 | & ~hotkey_source_mask); | |
9c0a76e1 HMH |
3528 | if (res < 0 && res != -ENXIO) { |
3529 | hotkey_exit(); | |
3530 | return res; | |
3531 | } | |
0d922e3b HMH |
3532 | hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask) |
3533 | & ~hotkey_reserved_mask; | |
3534 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3535 | "initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n", | |
3536 | hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask); | |
01e88f25 | 3537 | |
9c0a76e1 HMH |
3538 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
3539 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 3540 | |
db25f16d | 3541 | hotkey_poll_setup_safe(true); |
56b6aeb0 | 3542 | |
9c0a76e1 | 3543 | return 0; |
01e88f25 | 3544 | |
9c0a76e1 HMH |
3545 | err_exit: |
3546 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
b790ceeb BN |
3547 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
3548 | &adaptive_kbd_attr_group); | |
3549 | ||
9c0a76e1 | 3550 | hotkey_dev_attributes = NULL; |
a0416420 | 3551 | |
72a979f0 | 3552 | return (res < 0) ? res : 1; |
56b6aeb0 HMH |
3553 | } |
3554 | ||
3a9d20bd SS |
3555 | /* Thinkpad X1 Carbon support 5 modes including Home mode, Web browser |
3556 | * mode, Web conference mode, Function mode and Lay-flat mode. | |
3557 | * We support Home mode and Function mode currently. | |
3558 | * | |
3559 | * Will consider support rest of modes in future. | |
3560 | * | |
3561 | */ | |
b201a47f | 3562 | static const int adaptive_keyboard_modes[] = { |
3a9d20bd SS |
3563 | HOME_MODE, |
3564 | /* WEB_BROWSER_MODE = 2, | |
3565 | WEB_CONFERENCE_MODE = 3, */ | |
3566 | FUNCTION_MODE | |
3567 | }; | |
3568 | ||
3569 | #define DFR_CHANGE_ROW 0x101 | |
3570 | #define DFR_SHOW_QUICKVIEW_ROW 0x102 | |
6a68d855 BN |
3571 | #define FIRST_ADAPTIVE_KEY 0x103 |
3572 | #define ADAPTIVE_KEY_OFFSET 0x020 | |
3a9d20bd SS |
3573 | |
3574 | /* press Fn key a while second, it will switch to Function Mode. Then | |
3575 | * release Fn key, previous mode be restored. | |
3576 | */ | |
3577 | static bool adaptive_keyboard_mode_is_saved; | |
3578 | static int adaptive_keyboard_prev_mode; | |
3579 | ||
f74587fb BN |
3580 | static int adaptive_keyboard_get_mode(void) |
3581 | { | |
3582 | int mode = 0; | |
3583 | ||
3584 | if (!acpi_evalf(hkey_handle, &mode, "GTRW", "dd", 0)) { | |
3585 | pr_err("Cannot read adaptive keyboard mode\n"); | |
3586 | return -EIO; | |
3587 | } | |
3588 | ||
3589 | return mode; | |
3590 | } | |
3591 | ||
3592 | static int adaptive_keyboard_set_mode(int new_mode) | |
3593 | { | |
3594 | if (new_mode < 0 || | |
3595 | new_mode > LAYFLAT_MODE) | |
3596 | return -EINVAL; | |
3597 | ||
3598 | if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", new_mode)) { | |
3599 | pr_err("Cannot set adaptive keyboard mode\n"); | |
3600 | return -EIO; | |
3601 | } | |
3602 | ||
3603 | return 0; | |
3604 | } | |
3605 | ||
3a9d20bd SS |
3606 | static int adaptive_keyboard_get_next_mode(int mode) |
3607 | { | |
3608 | size_t i; | |
3609 | size_t max_mode = ARRAY_SIZE(adaptive_keyboard_modes) - 1; | |
3610 | ||
3611 | for (i = 0; i <= max_mode; i++) { | |
3612 | if (adaptive_keyboard_modes[i] == mode) | |
3613 | break; | |
3614 | } | |
3615 | ||
3616 | if (i >= max_mode) | |
3617 | i = 0; | |
3618 | else | |
3619 | i++; | |
3620 | ||
3621 | return adaptive_keyboard_modes[i]; | |
3622 | } | |
3623 | ||
3624 | static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode) | |
3625 | { | |
abf9dc0d | 3626 | int current_mode = 0; |
3a9d20bd | 3627 | int new_mode = 0; |
6a68d855 | 3628 | int keycode; |
3a9d20bd SS |
3629 | |
3630 | switch (scancode) { | |
3631 | case DFR_CHANGE_ROW: | |
3632 | if (adaptive_keyboard_mode_is_saved) { | |
3633 | new_mode = adaptive_keyboard_prev_mode; | |
3634 | adaptive_keyboard_mode_is_saved = false; | |
3635 | } else { | |
f74587fb BN |
3636 | current_mode = adaptive_keyboard_get_mode(); |
3637 | if (current_mode < 0) | |
3a9d20bd | 3638 | return false; |
f74587fb BN |
3639 | new_mode = adaptive_keyboard_get_next_mode( |
3640 | current_mode); | |
3a9d20bd SS |
3641 | } |
3642 | ||
f74587fb | 3643 | if (adaptive_keyboard_set_mode(new_mode) < 0) |
3a9d20bd | 3644 | return false; |
3a9d20bd SS |
3645 | |
3646 | return true; | |
3647 | ||
3648 | case DFR_SHOW_QUICKVIEW_ROW: | |
f74587fb BN |
3649 | current_mode = adaptive_keyboard_get_mode(); |
3650 | if (current_mode < 0) | |
3a9d20bd | 3651 | return false; |
3a9d20bd | 3652 | |
f74587fb BN |
3653 | adaptive_keyboard_prev_mode = current_mode; |
3654 | adaptive_keyboard_mode_is_saved = true; | |
3655 | ||
3656 | if (adaptive_keyboard_set_mode (FUNCTION_MODE) < 0) | |
3657 | return false; | |
3a9d20bd SS |
3658 | return true; |
3659 | ||
3660 | default: | |
741d98c7 DC |
3661 | if (scancode < FIRST_ADAPTIVE_KEY || |
3662 | scancode >= FIRST_ADAPTIVE_KEY + TPACPI_HOTKEY_MAP_LEN - | |
3663 | ADAPTIVE_KEY_OFFSET) { | |
6a68d855 BN |
3664 | pr_info("Unhandled adaptive keyboard key: 0x%x\n", |
3665 | scancode); | |
3666 | return false; | |
3667 | } | |
3668 | keycode = hotkey_keycode_map[scancode - FIRST_ADAPTIVE_KEY + ADAPTIVE_KEY_OFFSET]; | |
3669 | if (keycode != KEY_RESERVED) { | |
3670 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
3671 | ||
3672 | input_report_key(tpacpi_inputdev, keycode, 1); | |
3673 | input_sync(tpacpi_inputdev); | |
3674 | ||
3675 | input_report_key(tpacpi_inputdev, keycode, 0); | |
3676 | input_sync(tpacpi_inputdev); | |
3677 | ||
3678 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3679 | } | |
3680 | return true; | |
3a9d20bd SS |
3681 | } |
3682 | } | |
3683 | ||
3827e7a3 HMH |
3684 | static bool hotkey_notify_hotkey(const u32 hkey, |
3685 | bool *send_acpi_ev, | |
3686 | bool *ignore_acpi_ev) | |
3687 | { | |
3688 | /* 0x1000-0x1FFF: key presses */ | |
3689 | unsigned int scancode = hkey & 0xfff; | |
3690 | *send_acpi_ev = true; | |
3691 | *ignore_acpi_ev = false; | |
3692 | ||
34a656d2 HMH |
3693 | /* HKEY event 0x1001 is scancode 0x00 */ |
3694 | if (scancode > 0 && scancode <= TPACPI_HOTKEY_MAP_LEN) { | |
3827e7a3 HMH |
3695 | scancode--; |
3696 | if (!(hotkey_source_mask & (1 << scancode))) { | |
0d922e3b | 3697 | tpacpi_input_send_key_masked(scancode); |
3827e7a3 HMH |
3698 | *send_acpi_ev = false; |
3699 | } else { | |
3700 | *ignore_acpi_ev = true; | |
3701 | } | |
3702 | return true; | |
3a9d20bd SS |
3703 | } else { |
3704 | return adaptive_keyboard_hotkey_notify_hotkey(scancode); | |
3827e7a3 HMH |
3705 | } |
3706 | return false; | |
3707 | } | |
3708 | ||
3709 | static bool hotkey_notify_wakeup(const u32 hkey, | |
3710 | bool *send_acpi_ev, | |
3711 | bool *ignore_acpi_ev) | |
3712 | { | |
3713 | /* 0x2000-0x2FFF: Wakeup reason */ | |
3714 | *send_acpi_ev = true; | |
3715 | *ignore_acpi_ev = false; | |
3716 | ||
3717 | switch (hkey) { | |
67bcae6e HMH |
3718 | case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */ |
3719 | case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */ | |
3827e7a3 HMH |
3720 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; |
3721 | *ignore_acpi_ev = true; | |
3722 | break; | |
3723 | ||
67bcae6e HMH |
3724 | case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */ |
3725 | case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */ | |
3827e7a3 HMH |
3726 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; |
3727 | *ignore_acpi_ev = true; | |
3728 | break; | |
3729 | ||
67bcae6e HMH |
3730 | case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ |
3731 | case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ | |
0978e012 | 3732 | pr_alert("EMERGENCY WAKEUP: battery almost empty\n"); |
106b4e66 HMH |
3733 | /* how to auto-heal: */ |
3734 | /* 2313: woke up from S3, go to S4/S5 */ | |
3735 | /* 2413: woke up from S4, go to S5 */ | |
3736 | break; | |
3737 | ||
3827e7a3 HMH |
3738 | default: |
3739 | return false; | |
3740 | } | |
3741 | ||
3742 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
0978e012 | 3743 | pr_info("woke up due to a hot-unplug request...\n"); |
3827e7a3 HMH |
3744 | hotkey_wakeup_reason_notify_change(); |
3745 | } | |
3746 | return true; | |
3747 | } | |
3748 | ||
a50245af HMH |
3749 | static bool hotkey_notify_dockevent(const u32 hkey, |
3750 | bool *send_acpi_ev, | |
3751 | bool *ignore_acpi_ev) | |
3752 | { | |
3753 | /* 0x4000-0x4FFF: dock-related events */ | |
3754 | *send_acpi_ev = true; | |
3755 | *ignore_acpi_ev = false; | |
3756 | ||
3757 | switch (hkey) { | |
3758 | case TP_HKEY_EV_UNDOCK_ACK: | |
3759 | /* ACPI undock operation completed after wakeup */ | |
3760 | hotkey_autosleep_ack = 1; | |
3761 | pr_info("undocked\n"); | |
3762 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
3763 | return true; | |
3764 | ||
3765 | case TP_HKEY_EV_HOTPLUG_DOCK: /* docked to port replicator */ | |
3766 | pr_info("docked into hotplug port replicator\n"); | |
3767 | return true; | |
3768 | case TP_HKEY_EV_HOTPLUG_UNDOCK: /* undocked from port replicator */ | |
3769 | pr_info("undocked from hotplug port replicator\n"); | |
3770 | return true; | |
3771 | ||
3772 | default: | |
3773 | return false; | |
3774 | } | |
3775 | } | |
3776 | ||
3827e7a3 HMH |
3777 | static bool hotkey_notify_usrevent(const u32 hkey, |
3778 | bool *send_acpi_ev, | |
3779 | bool *ignore_acpi_ev) | |
3780 | { | |
3781 | /* 0x5000-0x5FFF: human interface helpers */ | |
3782 | *send_acpi_ev = true; | |
3783 | *ignore_acpi_ev = false; | |
3784 | ||
3785 | switch (hkey) { | |
67bcae6e HMH |
3786 | case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */ |
3787 | case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */ | |
3827e7a3 HMH |
3788 | return true; |
3789 | ||
67bcae6e HMH |
3790 | case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */ |
3791 | case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */ | |
3827e7a3 HMH |
3792 | tpacpi_input_send_tabletsw(); |
3793 | hotkey_tablet_mode_notify_change(); | |
3794 | *send_acpi_ev = false; | |
3795 | return true; | |
3796 | ||
67bcae6e HMH |
3797 | case TP_HKEY_EV_LID_CLOSE: /* Lid closed */ |
3798 | case TP_HKEY_EV_LID_OPEN: /* Lid opened */ | |
3799 | case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */ | |
176dd985 | 3800 | /* do not propagate these events */ |
3827e7a3 HMH |
3801 | *ignore_acpi_ev = true; |
3802 | return true; | |
3803 | ||
3804 | default: | |
3805 | return false; | |
3806 | } | |
3807 | } | |
3808 | ||
9ebd9e83 HMH |
3809 | static void thermal_dump_all_sensors(void); |
3810 | ||
2d43f671 | 3811 | static bool hotkey_notify_6xxx(const u32 hkey, |
106b4e66 HMH |
3812 | bool *send_acpi_ev, |
3813 | bool *ignore_acpi_ev) | |
3814 | { | |
9ebd9e83 HMH |
3815 | bool known = true; |
3816 | ||
2d43f671 | 3817 | /* 0x6000-0x6FFF: thermal alarms/notices and keyboard events */ |
106b4e66 HMH |
3818 | *send_acpi_ev = true; |
3819 | *ignore_acpi_ev = false; | |
3820 | ||
3821 | switch (hkey) { | |
9ebd9e83 | 3822 | case TP_HKEY_EV_THM_TABLE_CHANGED: |
0978e012 | 3823 | pr_info("EC reports that Thermal Table has changed\n"); |
9ebd9e83 HMH |
3824 | /* recommended action: do nothing, we don't have |
3825 | * Lenovo ATM information */ | |
3826 | return true; | |
67bcae6e | 3827 | case TP_HKEY_EV_ALARM_BAT_HOT: |
0978e012 | 3828 | pr_crit("THERMAL ALARM: battery is too hot!\n"); |
106b4e66 | 3829 | /* recommended action: warn user through gui */ |
9ebd9e83 | 3830 | break; |
67bcae6e | 3831 | case TP_HKEY_EV_ALARM_BAT_XHOT: |
0978e012 | 3832 | pr_alert("THERMAL EMERGENCY: battery is extremely hot!\n"); |
106b4e66 | 3833 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 3834 | break; |
67bcae6e | 3835 | case TP_HKEY_EV_ALARM_SENSOR_HOT: |
0978e012 | 3836 | pr_crit("THERMAL ALARM: " |
106b4e66 HMH |
3837 | "a sensor reports something is too hot!\n"); |
3838 | /* recommended action: warn user through gui, that */ | |
3839 | /* some internal component is too hot */ | |
9ebd9e83 | 3840 | break; |
67bcae6e | 3841 | case TP_HKEY_EV_ALARM_SENSOR_XHOT: |
0978e012 JP |
3842 | pr_alert("THERMAL EMERGENCY: " |
3843 | "a sensor reports something is extremely hot!\n"); | |
106b4e66 | 3844 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 3845 | break; |
6f62bc3e RH |
3846 | case TP_HKEY_EV_AC_CHANGED: |
3847 | /* X120e, X121e, X220, X220i, X220t, X230, T420, T420s, W520: | |
3848 | * AC status changed; can be triggered by plugging or | |
3849 | * unplugging AC adapter, docking or undocking. */ | |
3850 | ||
3851 | /* fallthrough */ | |
2d43f671 HMH |
3852 | |
3853 | case TP_HKEY_EV_KEY_NUMLOCK: | |
3854 | case TP_HKEY_EV_KEY_FN: | |
67ab6248 | 3855 | case TP_HKEY_EV_KEY_FN_ESC: |
2d43f671 HMH |
3856 | /* key press events, we just ignore them as long as the EC |
3857 | * is still reporting them in the normal keyboard stream */ | |
3858 | *send_acpi_ev = false; | |
3859 | *ignore_acpi_ev = true; | |
3860 | return true; | |
3861 | ||
106b4e66 | 3862 | default: |
2d43f671 | 3863 | pr_warn("unknown possible thermal alarm or keyboard event received\n"); |
9ebd9e83 | 3864 | known = false; |
106b4e66 | 3865 | } |
9ebd9e83 HMH |
3866 | |
3867 | thermal_dump_all_sensors(); | |
3868 | ||
3869 | return known; | |
106b4e66 HMH |
3870 | } |
3871 | ||
56b6aeb0 HMH |
3872 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
3873 | { | |
6a38abbf | 3874 | u32 hkey; |
3827e7a3 HMH |
3875 | bool send_acpi_ev; |
3876 | bool ignore_acpi_ev; | |
3877 | bool known_ev; | |
3eea123d HMH |
3878 | |
3879 | if (event != 0x80) { | |
0978e012 | 3880 | pr_err("unknown HKEY notification event %d\n", event); |
3eea123d | 3881 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
3882 | acpi_bus_generate_netlink_event( |
3883 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 3884 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 3885 | event, 0); |
3eea123d HMH |
3886 | return; |
3887 | } | |
3888 | ||
3889 | while (1) { | |
3890 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
0978e012 | 3891 | pr_err("failed to retrieve HKEY event\n"); |
3eea123d HMH |
3892 | return; |
3893 | } | |
3894 | ||
3895 | if (hkey == 0) { | |
3896 | /* queue empty */ | |
3897 | return; | |
3898 | } | |
3899 | ||
3827e7a3 HMH |
3900 | send_acpi_ev = true; |
3901 | ignore_acpi_ev = false; | |
56b6aeb0 | 3902 | |
ff80f137 HMH |
3903 | switch (hkey >> 12) { |
3904 | case 1: | |
3905 | /* 0x1000-0x1FFF: key presses */ | |
3827e7a3 HMH |
3906 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
3907 | &ignore_acpi_ev); | |
ff80f137 | 3908 | break; |
a713b4d7 | 3909 | case 2: |
3827e7a3 HMH |
3910 | /* 0x2000-0x2FFF: Wakeup reason */ |
3911 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, | |
3912 | &ignore_acpi_ev); | |
a713b4d7 HMH |
3913 | break; |
3914 | case 3: | |
3827e7a3 | 3915 | /* 0x3000-0x3FFF: bay-related wakeups */ |
bf8b29c8 HMH |
3916 | switch (hkey) { |
3917 | case TP_HKEY_EV_BAYEJ_ACK: | |
a713b4d7 | 3918 | hotkey_autosleep_ack = 1; |
0978e012 | 3919 | pr_info("bay ejected\n"); |
50ebec09 | 3920 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 3921 | known_ev = true; |
bf8b29c8 HMH |
3922 | break; |
3923 | case TP_HKEY_EV_OPTDRV_EJ: | |
3924 | /* FIXME: kick libata if SATA link offline */ | |
3925 | known_ev = true; | |
3926 | break; | |
3927 | default: | |
3827e7a3 | 3928 | known_ev = false; |
a713b4d7 HMH |
3929 | } |
3930 | break; | |
3931 | case 4: | |
a50245af HMH |
3932 | /* 0x4000-0x4FFF: dock-related events */ |
3933 | known_ev = hotkey_notify_dockevent(hkey, &send_acpi_ev, | |
3934 | &ignore_acpi_ev); | |
a713b4d7 | 3935 | break; |
ff80f137 | 3936 | case 5: |
d1edb2b5 | 3937 | /* 0x5000-0x5FFF: human interface helpers */ |
3827e7a3 HMH |
3938 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
3939 | &ignore_acpi_ev); | |
ff80f137 | 3940 | break; |
106b4e66 | 3941 | case 6: |
2d43f671 HMH |
3942 | /* 0x6000-0x6FFF: thermal alarms/notices and |
3943 | * keyboard events */ | |
3944 | known_ev = hotkey_notify_6xxx(hkey, &send_acpi_ev, | |
106b4e66 HMH |
3945 | &ignore_acpi_ev); |
3946 | break; | |
ff80f137 HMH |
3947 | case 7: |
3948 | /* 0x7000-0x7FFF: misc */ | |
67bcae6e HMH |
3949 | if (tp_features.hotkey_wlsw && |
3950 | hkey == TP_HKEY_EV_RFKILL_CHANGED) { | |
733e27c1 | 3951 | tpacpi_send_radiosw_update(); |
3b64b51d | 3952 | send_acpi_ev = 0; |
3827e7a3 | 3953 | known_ev = true; |
6a38abbf | 3954 | break; |
6a38abbf | 3955 | } |
ff80f137 HMH |
3956 | /* fallthrough to default */ |
3957 | default: | |
3827e7a3 | 3958 | known_ev = false; |
3b64b51d | 3959 | } |
3827e7a3 | 3960 | if (!known_ev) { |
0978e012 JP |
3961 | pr_notice("unhandled HKEY event 0x%04x\n", hkey); |
3962 | pr_notice("please report the conditions when this " | |
3963 | "event happened to %s\n", TPACPI_MAIL); | |
6a38abbf | 3964 | } |
ff80f137 | 3965 | |
3eea123d | 3966 | /* netlink events */ |
3e5ce914 | 3967 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
3968 | acpi_bus_generate_netlink_event( |
3969 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 3970 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 3971 | event, hkey); |
3eea123d | 3972 | } |
56b6aeb0 HMH |
3973 | } |
3974 | } | |
3975 | ||
fd3c3a42 | 3976 | static void hotkey_suspend(void) |
a713b4d7 HMH |
3977 | { |
3978 | /* Do these on suspend, we get the events on early resume! */ | |
3979 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
3980 | hotkey_autosleep_ack = 0; | |
330947b8 SS |
3981 | |
3982 | /* save previous mode of adaptive keyboard of X1 Carbon */ | |
f23a5bcb BN |
3983 | if (tp_features.has_adaptive_kbd) { |
3984 | if (!acpi_evalf(hkey_handle, &adaptive_keyboard_prev_mode, | |
3985 | "GTRW", "dd", 0)) { | |
3986 | pr_err("Cannot read adaptive keyboard mode.\n"); | |
330947b8 SS |
3987 | } |
3988 | } | |
a713b4d7 HMH |
3989 | } |
3990 | ||
5c29d58f HMH |
3991 | static void hotkey_resume(void) |
3992 | { | |
d64c81c4 HMH |
3993 | tpacpi_disable_brightness_delay(); |
3994 | ||
0d922e3b HMH |
3995 | if (hotkey_status_set(true) < 0 || |
3996 | hotkey_mask_set(hotkey_acpi_mask) < 0) | |
0978e012 | 3997 | pr_err("error while attempting to reset the event " |
0d922e3b HMH |
3998 | "firmware interface\n"); |
3999 | ||
733e27c1 | 4000 | tpacpi_send_radiosw_update(); |
6c231bd5 | 4001 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
4002 | hotkey_wakeup_reason_notify_change(); |
4003 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
db25f16d | 4004 | hotkey_poll_setup_safe(false); |
330947b8 SS |
4005 | |
4006 | /* restore previous mode of adapive keyboard of X1 Carbon */ | |
f23a5bcb BN |
4007 | if (tp_features.has_adaptive_kbd) { |
4008 | if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", | |
4009 | adaptive_keyboard_prev_mode)) { | |
4010 | pr_err("Cannot set adaptive keyboard mode.\n"); | |
330947b8 SS |
4011 | } |
4012 | } | |
5c29d58f HMH |
4013 | } |
4014 | ||
a0416420 | 4015 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4016 | static int hotkey_read(struct seq_file *m) |
1da177e4 | 4017 | { |
ae92bd17 | 4018 | int res, status; |
1da177e4 | 4019 | |
d8fd94d9 | 4020 | if (!tp_features.hotkey) { |
887965e6 AD |
4021 | seq_printf(m, "status:\t\tnot supported\n"); |
4022 | return 0; | |
78f81cc4 BD |
4023 | } |
4024 | ||
7646ea88 | 4025 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 4026 | return -ERESTARTSYS; |
b2c985e7 HMH |
4027 | res = hotkey_status_get(&status); |
4028 | if (!res) | |
4029 | res = hotkey_mask_get(); | |
40ca9fdf | 4030 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
4031 | if (res) |
4032 | return res; | |
1da177e4 | 4033 | |
887965e6 | 4034 | seq_printf(m, "status:\t\t%s\n", enabled(status, 0)); |
0d922e3b | 4035 | if (hotkey_all_mask) { |
887965e6 AD |
4036 | seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask); |
4037 | seq_printf(m, "commands:\tenable, disable, reset, <mask>\n"); | |
1da177e4 | 4038 | } else { |
887965e6 AD |
4039 | seq_printf(m, "mask:\t\tnot supported\n"); |
4040 | seq_printf(m, "commands:\tenable, disable, reset\n"); | |
1da177e4 LT |
4041 | } |
4042 | ||
887965e6 | 4043 | return 0; |
1da177e4 LT |
4044 | } |
4045 | ||
406e988b | 4046 | static void hotkey_enabledisable_warn(bool enable) |
2586d566 HMH |
4047 | { |
4048 | tpacpi_log_usertask("procfs hotkey enable/disable"); | |
406e988b | 4049 | if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), |
0978e012 JP |
4050 | pr_fmt("hotkey enable/disable functionality has been " |
4051 | "removed from the driver. " | |
4052 | "Hotkeys are always enabled.\n"))) | |
4053 | pr_err("Please remove the hotkey=enable module " | |
4054 | "parameter, it is deprecated. " | |
4055 | "Hotkeys are always enabled.\n"); | |
2586d566 HMH |
4056 | } |
4057 | ||
78f81cc4 | 4058 | static int hotkey_write(char *buf) |
1da177e4 | 4059 | { |
2586d566 | 4060 | int res; |
ae92bd17 | 4061 | u32 mask; |
1da177e4 | 4062 | char *cmd; |
1da177e4 | 4063 | |
d8fd94d9 | 4064 | if (!tp_features.hotkey) |
1da177e4 LT |
4065 | return -ENODEV; |
4066 | ||
7646ea88 | 4067 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 4068 | return -ERESTARTSYS; |
40ca9fdf | 4069 | |
0d922e3b | 4070 | mask = hotkey_user_mask; |
78f81cc4 | 4071 | |
40ca9fdf | 4072 | res = 0; |
1da177e4 LT |
4073 | while ((cmd = next_cmd(&buf))) { |
4074 | if (strlencmp(cmd, "enable") == 0) { | |
406e988b | 4075 | hotkey_enabledisable_warn(1); |
1da177e4 | 4076 | } else if (strlencmp(cmd, "disable") == 0) { |
406e988b | 4077 | hotkey_enabledisable_warn(0); |
2586d566 | 4078 | res = -EPERM; |
1da177e4 | 4079 | } else if (strlencmp(cmd, "reset") == 0) { |
20c9aa46 HMH |
4080 | mask = (hotkey_all_mask | hotkey_source_mask) |
4081 | & ~hotkey_reserved_mask; | |
1da177e4 LT |
4082 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
4083 | /* mask set */ | |
4084 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
4085 | /* mask set */ | |
40ca9fdf HMH |
4086 | } else { |
4087 | res = -EINVAL; | |
4088 | goto errexit; | |
4089 | } | |
1da177e4 | 4090 | } |
56e2c200 | 4091 | |
0d922e3b | 4092 | if (!res) { |
56e2c200 HMH |
4093 | tpacpi_disclose_usertask("procfs hotkey", |
4094 | "set mask to 0x%08x\n", mask); | |
0d922e3b HMH |
4095 | res = hotkey_user_mask_set(mask); |
4096 | } | |
1da177e4 | 4097 | |
40ca9fdf HMH |
4098 | errexit: |
4099 | mutex_unlock(&hotkey_mutex); | |
4100 | return res; | |
78f81cc4 | 4101 | } |
1da177e4 | 4102 | |
1ba90e3a | 4103 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
9fbdaeb4 MI |
4104 | {TPACPI_ACPI_IBM_HKEY_HID, 0}, |
4105 | {TPACPI_ACPI_LENOVO_HKEY_HID, 0}, | |
1ba90e3a TR |
4106 | {"", 0}, |
4107 | }; | |
4108 | ||
8d376cd6 | 4109 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 4110 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
4111 | .notify = hotkey_notify, |
4112 | .handle = &hkey_handle, | |
4113 | .type = ACPI_DEVICE_NOTIFY, | |
4114 | }; | |
4115 | ||
a5763f22 HMH |
4116 | static struct ibm_struct hotkey_driver_data = { |
4117 | .name = "hotkey", | |
a5763f22 HMH |
4118 | .read = hotkey_read, |
4119 | .write = hotkey_write, | |
4120 | .exit = hotkey_exit, | |
5c29d58f | 4121 | .resume = hotkey_resume, |
a713b4d7 | 4122 | .suspend = hotkey_suspend, |
8d376cd6 | 4123 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
4124 | }; |
4125 | ||
56b6aeb0 HMH |
4126 | /************************************************************************* |
4127 | * Bluetooth subdriver | |
4128 | */ | |
1da177e4 | 4129 | |
f74a27d4 HMH |
4130 | enum { |
4131 | /* ACPI GBDC/SBDC bits */ | |
4132 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
4133 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 | 4134 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
08fedfc9 | 4135 | 0 = disable, 1 = enable */ |
153f8220 HMH |
4136 | }; |
4137 | ||
4138 | enum { | |
4139 | /* ACPI \BLTH commands */ | |
4140 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
4141 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
4142 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
4143 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
4144 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
4145 | }; |
4146 | ||
bee4cd9b HMH |
4147 | #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" |
4148 | ||
19d337df | 4149 | static int bluetooth_get_status(void) |
07431ec8 HMH |
4150 | { |
4151 | int status; | |
4152 | ||
a73f3091 HMH |
4153 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4154 | if (dbg_bluetoothemul) | |
4155 | return (tpacpi_bluetooth_emulstate) ? | |
19d337df | 4156 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4157 | #endif |
4158 | ||
07431ec8 HMH |
4159 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
4160 | return -EIO; | |
4161 | ||
0e74dc26 | 4162 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
19d337df | 4163 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
07431ec8 HMH |
4164 | } |
4165 | ||
19d337df | 4166 | static int bluetooth_set_status(enum tpacpi_rfkill_state state) |
0e74dc26 HMH |
4167 | { |
4168 | int status; | |
4169 | ||
bee4cd9b | 4170 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4171 | "will attempt to %s bluetooth\n", |
4172 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4173 | |
a73f3091 HMH |
4174 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4175 | if (dbg_bluetoothemul) { | |
19d337df | 4176 | tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4177 | return 0; |
4178 | } | |
4179 | #endif | |
4180 | ||
19d337df | 4181 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4182 | status = TP_ACPI_BLUETOOTH_RADIOSSW |
4183 | | TP_ACPI_BLUETOOTH_RESUMECTRL; | |
4184 | else | |
4185 | status = 0; | |
19d337df | 4186 | |
07431ec8 HMH |
4187 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
4188 | return -EIO; | |
4189 | ||
4190 | return 0; | |
4191 | } | |
f74a27d4 | 4192 | |
d3a6ade4 HMH |
4193 | /* sysfs bluetooth enable ---------------------------------------------- */ |
4194 | static ssize_t bluetooth_enable_show(struct device *dev, | |
4195 | struct device_attribute *attr, | |
4196 | char *buf) | |
4197 | { | |
19d337df JB |
4198 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID, |
4199 | attr, buf); | |
d3a6ade4 HMH |
4200 | } |
4201 | ||
4202 | static ssize_t bluetooth_enable_store(struct device *dev, | |
4203 | struct device_attribute *attr, | |
4204 | const char *buf, size_t count) | |
4205 | { | |
19d337df JB |
4206 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID, |
4207 | attr, buf, count); | |
d3a6ade4 HMH |
4208 | } |
4209 | ||
b4dd04ac | 4210 | static DEVICE_ATTR_RW(bluetooth_enable); |
d3a6ade4 HMH |
4211 | |
4212 | /* --------------------------------------------------------------------- */ | |
4213 | ||
4214 | static struct attribute *bluetooth_attributes[] = { | |
4215 | &dev_attr_bluetooth_enable.attr, | |
4216 | NULL | |
4217 | }; | |
4218 | ||
4219 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
4220 | .attrs = bluetooth_attributes, |
4221 | }; | |
4222 | ||
19d337df JB |
4223 | static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = { |
4224 | .get_status = bluetooth_get_status, | |
4225 | .set_status = bluetooth_set_status, | |
4226 | }; | |
0e74dc26 | 4227 | |
90d9d3c7 HMH |
4228 | static void bluetooth_shutdown(void) |
4229 | { | |
4230 | /* Order firmware to save current state to NVRAM */ | |
4231 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
4232 | TP_ACPI_BLTH_SAVE_STATE)) | |
0978e012 | 4233 | pr_notice("failed to save bluetooth state to NVRAM\n"); |
bee4cd9b HMH |
4234 | else |
4235 | vdbg_printk(TPACPI_DBG_RFKILL, | |
1f01358c | 4236 | "bluetooth state saved to NVRAM\n"); |
90d9d3c7 HMH |
4237 | } |
4238 | ||
07431ec8 HMH |
4239 | static void bluetooth_exit(void) |
4240 | { | |
4241 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4242 | &bluetooth_attr_group); | |
19d337df JB |
4243 | |
4244 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); | |
4245 | ||
4246 | bluetooth_shutdown(); | |
07431ec8 HMH |
4247 | } |
4248 | ||
a5763f22 | 4249 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 4250 | { |
d3a6ade4 | 4251 | int res; |
d6fdd1e9 HMH |
4252 | int status = 0; |
4253 | ||
bee4cd9b HMH |
4254 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4255 | "initializing bluetooth subdriver\n"); | |
fe08bc4b | 4256 | |
e0c7dfe7 | 4257 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4258 | |
78f81cc4 BD |
4259 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4260 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 4261 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
4262 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
4263 | ||
bee4cd9b HMH |
4264 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4265 | "bluetooth is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4266 | str_supported(tp_features.bluetooth), |
4267 | status); | |
4268 | ||
a73f3091 HMH |
4269 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4270 | if (dbg_bluetoothemul) { | |
4271 | tp_features.bluetooth = 1; | |
0978e012 | 4272 | pr_info("bluetooth switch emulation enabled\n"); |
a73f3091 HMH |
4273 | } else |
4274 | #endif | |
3a872080 HMH |
4275 | if (tp_features.bluetooth && |
4276 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
4277 | /* no bluetooth hardware present in system */ | |
4278 | tp_features.bluetooth = 0; | |
bee4cd9b | 4279 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4280 | "bluetooth hardware not installed\n"); |
4281 | } | |
4282 | ||
0e74dc26 HMH |
4283 | if (!tp_features.bluetooth) |
4284 | return 1; | |
4285 | ||
0e74dc26 | 4286 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, |
19d337df | 4287 | &bluetooth_tprfk_ops, |
0e74dc26 | 4288 | RFKILL_TYPE_BLUETOOTH, |
bee4cd9b | 4289 | TPACPI_RFK_BLUETOOTH_SW_NAME, |
19d337df JB |
4290 | true); |
4291 | if (res) | |
4292 | return res; | |
4293 | ||
4294 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4295 | &bluetooth_attr_group); | |
0e74dc26 | 4296 | if (res) { |
19d337df | 4297 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); |
0e74dc26 | 4298 | return res; |
d6fdd1e9 | 4299 | } |
fe08bc4b | 4300 | |
0e74dc26 | 4301 | return 0; |
1da177e4 LT |
4302 | } |
4303 | ||
d3a6ade4 | 4304 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4305 | static int bluetooth_read(struct seq_file *m) |
1da177e4 | 4306 | { |
887965e6 | 4307 | return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m); |
1da177e4 LT |
4308 | } |
4309 | ||
78f81cc4 | 4310 | static int bluetooth_write(char *buf) |
1da177e4 | 4311 | { |
19d337df | 4312 | return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf); |
1da177e4 LT |
4313 | } |
4314 | ||
a5763f22 HMH |
4315 | static struct ibm_struct bluetooth_driver_data = { |
4316 | .name = "bluetooth", | |
4317 | .read = bluetooth_read, | |
4318 | .write = bluetooth_write, | |
d3a6ade4 | 4319 | .exit = bluetooth_exit, |
90d9d3c7 | 4320 | .shutdown = bluetooth_shutdown, |
a5763f22 HMH |
4321 | }; |
4322 | ||
56b6aeb0 HMH |
4323 | /************************************************************************* |
4324 | * Wan subdriver | |
4325 | */ | |
4326 | ||
f74a27d4 HMH |
4327 | enum { |
4328 | /* ACPI GWAN/SWAN bits */ | |
4329 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
4330 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 | 4331 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
08fedfc9 | 4332 | 0 = disable, 1 = enable */ |
f74a27d4 HMH |
4333 | }; |
4334 | ||
bee4cd9b HMH |
4335 | #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" |
4336 | ||
19d337df | 4337 | static int wan_get_status(void) |
07431ec8 HMH |
4338 | { |
4339 | int status; | |
4340 | ||
a73f3091 HMH |
4341 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4342 | if (dbg_wwanemul) | |
4343 | return (tpacpi_wwan_emulstate) ? | |
19d337df | 4344 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4345 | #endif |
4346 | ||
07431ec8 HMH |
4347 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
4348 | return -EIO; | |
4349 | ||
0e74dc26 | 4350 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
19d337df | 4351 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0e74dc26 HMH |
4352 | } |
4353 | ||
19d337df | 4354 | static int wan_set_status(enum tpacpi_rfkill_state state) |
07431ec8 HMH |
4355 | { |
4356 | int status; | |
4357 | ||
bee4cd9b | 4358 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4359 | "will attempt to %s wwan\n", |
4360 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4361 | |
a73f3091 HMH |
4362 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4363 | if (dbg_wwanemul) { | |
19d337df | 4364 | tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4365 | return 0; |
4366 | } | |
4367 | #endif | |
4368 | ||
19d337df | 4369 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4370 | status = TP_ACPI_WANCARD_RADIOSSW |
4371 | | TP_ACPI_WANCARD_RESUMECTRL; | |
4372 | else | |
4373 | status = 0; | |
19d337df | 4374 | |
07431ec8 HMH |
4375 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
4376 | return -EIO; | |
4377 | ||
4378 | return 0; | |
4379 | } | |
f74a27d4 | 4380 | |
d3a6ade4 HMH |
4381 | /* sysfs wan enable ---------------------------------------------------- */ |
4382 | static ssize_t wan_enable_show(struct device *dev, | |
4383 | struct device_attribute *attr, | |
4384 | char *buf) | |
4385 | { | |
19d337df JB |
4386 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID, |
4387 | attr, buf); | |
d3a6ade4 HMH |
4388 | } |
4389 | ||
4390 | static ssize_t wan_enable_store(struct device *dev, | |
4391 | struct device_attribute *attr, | |
4392 | const char *buf, size_t count) | |
4393 | { | |
19d337df JB |
4394 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID, |
4395 | attr, buf, count); | |
d3a6ade4 HMH |
4396 | } |
4397 | ||
5fb73bc2 BM |
4398 | static DEVICE_ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
4399 | wan_enable_show, wan_enable_store); | |
d3a6ade4 HMH |
4400 | |
4401 | /* --------------------------------------------------------------------- */ | |
4402 | ||
4403 | static struct attribute *wan_attributes[] = { | |
5fb73bc2 | 4404 | &dev_attr_wwan_enable.attr, |
d3a6ade4 HMH |
4405 | NULL |
4406 | }; | |
4407 | ||
4408 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
4409 | .attrs = wan_attributes, |
4410 | }; | |
4411 | ||
19d337df JB |
4412 | static const struct tpacpi_rfk_ops wan_tprfk_ops = { |
4413 | .get_status = wan_get_status, | |
4414 | .set_status = wan_set_status, | |
4415 | }; | |
0e74dc26 | 4416 | |
90d9d3c7 HMH |
4417 | static void wan_shutdown(void) |
4418 | { | |
4419 | /* Order firmware to save current state to NVRAM */ | |
4420 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", | |
4421 | TP_ACPI_WGSV_SAVE_STATE)) | |
0978e012 | 4422 | pr_notice("failed to save WWAN state to NVRAM\n"); |
bee4cd9b HMH |
4423 | else |
4424 | vdbg_printk(TPACPI_DBG_RFKILL, | |
4425 | "WWAN state saved to NVRAM\n"); | |
90d9d3c7 HMH |
4426 | } |
4427 | ||
07431ec8 HMH |
4428 | static void wan_exit(void) |
4429 | { | |
4430 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4431 | &wan_attr_group); | |
19d337df JB |
4432 | |
4433 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); | |
4434 | ||
4435 | wan_shutdown(); | |
07431ec8 HMH |
4436 | } |
4437 | ||
a5763f22 | 4438 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 4439 | { |
d3a6ade4 | 4440 | int res; |
d6fdd1e9 HMH |
4441 | int status = 0; |
4442 | ||
bee4cd9b HMH |
4443 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4444 | "initializing wan subdriver\n"); | |
fe08bc4b | 4445 | |
e0c7dfe7 | 4446 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4447 | |
d8fd94d9 | 4448 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
4449 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
4450 | ||
bee4cd9b HMH |
4451 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4452 | "wan is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4453 | str_supported(tp_features.wan), |
4454 | status); | |
4455 | ||
a73f3091 HMH |
4456 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4457 | if (dbg_wwanemul) { | |
4458 | tp_features.wan = 1; | |
0978e012 | 4459 | pr_info("wwan switch emulation enabled\n"); |
a73f3091 HMH |
4460 | } else |
4461 | #endif | |
3a872080 HMH |
4462 | if (tp_features.wan && |
4463 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
4464 | /* no wan hardware present in system */ | |
4465 | tp_features.wan = 0; | |
bee4cd9b | 4466 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4467 | "wan hardware not installed\n"); |
4468 | } | |
4469 | ||
0e74dc26 HMH |
4470 | if (!tp_features.wan) |
4471 | return 1; | |
4472 | ||
0e74dc26 | 4473 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, |
19d337df | 4474 | &wan_tprfk_ops, |
0e74dc26 | 4475 | RFKILL_TYPE_WWAN, |
bee4cd9b | 4476 | TPACPI_RFK_WWAN_SW_NAME, |
19d337df JB |
4477 | true); |
4478 | if (res) | |
4479 | return res; | |
4480 | ||
4481 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4482 | &wan_attr_group); | |
4483 | ||
0e74dc26 | 4484 | if (res) { |
19d337df | 4485 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); |
0e74dc26 | 4486 | return res; |
d6fdd1e9 | 4487 | } |
fe08bc4b | 4488 | |
0e74dc26 | 4489 | return 0; |
42adb53c JF |
4490 | } |
4491 | ||
d3a6ade4 | 4492 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4493 | static int wan_read(struct seq_file *m) |
42adb53c | 4494 | { |
887965e6 | 4495 | return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m); |
42adb53c JF |
4496 | } |
4497 | ||
4498 | static int wan_write(char *buf) | |
4499 | { | |
19d337df | 4500 | return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf); |
42adb53c JF |
4501 | } |
4502 | ||
a5763f22 HMH |
4503 | static struct ibm_struct wan_driver_data = { |
4504 | .name = "wan", | |
4505 | .read = wan_read, | |
4506 | .write = wan_write, | |
d3a6ade4 | 4507 | .exit = wan_exit, |
90d9d3c7 | 4508 | .shutdown = wan_shutdown, |
a5763f22 HMH |
4509 | }; |
4510 | ||
0045c0aa HMH |
4511 | /************************************************************************* |
4512 | * UWB subdriver | |
4513 | */ | |
4514 | ||
4515 | enum { | |
4516 | /* ACPI GUWB/SUWB bits */ | |
4517 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ | |
4518 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ | |
4519 | }; | |
4520 | ||
bee4cd9b HMH |
4521 | #define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw" |
4522 | ||
19d337df | 4523 | static int uwb_get_status(void) |
0045c0aa HMH |
4524 | { |
4525 | int status; | |
4526 | ||
0045c0aa HMH |
4527 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4528 | if (dbg_uwbemul) | |
4529 | return (tpacpi_uwb_emulstate) ? | |
19d337df | 4530 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4531 | #endif |
4532 | ||
4533 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) | |
4534 | return -EIO; | |
4535 | ||
4536 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? | |
19d337df | 4537 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4538 | } |
4539 | ||
19d337df | 4540 | static int uwb_set_status(enum tpacpi_rfkill_state state) |
0045c0aa HMH |
4541 | { |
4542 | int status; | |
4543 | ||
bee4cd9b | 4544 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4545 | "will attempt to %s UWB\n", |
4546 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4547 | |
0045c0aa HMH |
4548 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4549 | if (dbg_uwbemul) { | |
19d337df | 4550 | tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON); |
0045c0aa HMH |
4551 | return 0; |
4552 | } | |
4553 | #endif | |
4554 | ||
19d337df JB |
4555 | if (state == TPACPI_RFK_RADIO_ON) |
4556 | status = TP_ACPI_UWB_RADIOSSW; | |
4557 | else | |
4558 | status = 0; | |
4559 | ||
0045c0aa HMH |
4560 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) |
4561 | return -EIO; | |
4562 | ||
0045c0aa HMH |
4563 | return 0; |
4564 | } | |
4565 | ||
4566 | /* --------------------------------------------------------------------- */ | |
4567 | ||
19d337df JB |
4568 | static const struct tpacpi_rfk_ops uwb_tprfk_ops = { |
4569 | .get_status = uwb_get_status, | |
4570 | .set_status = uwb_set_status, | |
4571 | }; | |
0045c0aa HMH |
4572 | |
4573 | static void uwb_exit(void) | |
4574 | { | |
19d337df | 4575 | tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID); |
0045c0aa HMH |
4576 | } |
4577 | ||
4578 | static int __init uwb_init(struct ibm_init_struct *iibm) | |
4579 | { | |
4580 | int res; | |
4581 | int status = 0; | |
4582 | ||
bee4cd9b HMH |
4583 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4584 | "initializing uwb subdriver\n"); | |
0045c0aa HMH |
4585 | |
4586 | TPACPI_ACPIHANDLE_INIT(hkey); | |
4587 | ||
4588 | tp_features.uwb = hkey_handle && | |
4589 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); | |
4590 | ||
bee4cd9b HMH |
4591 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4592 | "uwb is %s, status 0x%02x\n", | |
0045c0aa HMH |
4593 | str_supported(tp_features.uwb), |
4594 | status); | |
4595 | ||
4596 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
4597 | if (dbg_uwbemul) { | |
4598 | tp_features.uwb = 1; | |
0978e012 | 4599 | pr_info("uwb switch emulation enabled\n"); |
0045c0aa HMH |
4600 | } else |
4601 | #endif | |
4602 | if (tp_features.uwb && | |
4603 | !(status & TP_ACPI_UWB_HWPRESENT)) { | |
4604 | /* no uwb hardware present in system */ | |
4605 | tp_features.uwb = 0; | |
4606 | dbg_printk(TPACPI_DBG_INIT, | |
4607 | "uwb hardware not installed\n"); | |
4608 | } | |
4609 | ||
4610 | if (!tp_features.uwb) | |
4611 | return 1; | |
4612 | ||
4613 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, | |
19d337df | 4614 | &uwb_tprfk_ops, |
0045c0aa | 4615 | RFKILL_TYPE_UWB, |
bee4cd9b | 4616 | TPACPI_RFK_UWB_SW_NAME, |
19d337df | 4617 | false); |
0045c0aa HMH |
4618 | return res; |
4619 | } | |
4620 | ||
4621 | static struct ibm_struct uwb_driver_data = { | |
4622 | .name = "uwb", | |
4623 | .exit = uwb_exit, | |
4624 | .flags.experimental = 1, | |
4625 | }; | |
4626 | ||
56b6aeb0 HMH |
4627 | /************************************************************************* |
4628 | * Video subdriver | |
4629 | */ | |
4630 | ||
d7c1d17d HMH |
4631 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
4632 | ||
f74a27d4 HMH |
4633 | enum video_access_mode { |
4634 | TPACPI_VIDEO_NONE = 0, | |
4635 | TPACPI_VIDEO_570, /* 570 */ | |
4636 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
4637 | TPACPI_VIDEO_NEW, /* all others */ | |
4638 | }; | |
4639 | ||
4640 | enum { /* video status flags, based on VIDEO_570 */ | |
4641 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
4642 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
4643 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
4644 | }; | |
4645 | ||
4646 | enum { /* TPACPI_VIDEO_570 constants */ | |
4647 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
4648 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
4649 | * video_status_flags */ | |
4650 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
4651 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
4652 | }; | |
4653 | ||
9a8e1738 HMH |
4654 | static enum video_access_mode video_supported; |
4655 | static int video_orig_autosw; | |
78f81cc4 | 4656 | |
f74a27d4 HMH |
4657 | static int video_autosw_get(void); |
4658 | static int video_autosw_set(int enable); | |
4659 | ||
112a6ee0 JP |
4660 | TPACPI_HANDLE(vid, root, |
4661 | "\\_SB.PCI.AGP.VGA", /* 570 */ | |
4662 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
4663 | "\\_SB.PCI0.VID0", /* 770e */ | |
4664 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
4665 | "\\_SB.PCI0.AGP.VGA", /* X100e and a few others */ | |
4666 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
4667 | ); /* R30, R31 */ | |
4668 | ||
e0c7dfe7 | 4669 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 4670 | |
a5763f22 | 4671 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 4672 | { |
78f81cc4 BD |
4673 | int ivga; |
4674 | ||
fe08bc4b HMH |
4675 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
4676 | ||
e0c7dfe7 | 4677 | TPACPI_ACPIHANDLE_INIT(vid); |
e28393c0 HMH |
4678 | if (tpacpi_is_ibm()) |
4679 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 4680 | |
78f81cc4 BD |
4681 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
4682 | /* G41, assume IVGA doesn't change */ | |
4683 | vid_handle = vid2_handle; | |
4684 | ||
4685 | if (!vid_handle) | |
4686 | /* video switching not supported on R30, R31 */ | |
efa27145 | 4687 | video_supported = TPACPI_VIDEO_NONE; |
e28393c0 HMH |
4688 | else if (tpacpi_is_ibm() && |
4689 | acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) | |
78f81cc4 | 4690 | /* 570 */ |
efa27145 | 4691 | video_supported = TPACPI_VIDEO_570; |
e28393c0 HMH |
4692 | else if (tpacpi_is_ibm() && |
4693 | acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) | |
78f81cc4 | 4694 | /* 600e/x, 770e, 770x */ |
efa27145 | 4695 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
4696 | else |
4697 | /* all others */ | |
efa27145 | 4698 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 4699 | |
fe08bc4b HMH |
4700 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
4701 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
4702 | video_supported); | |
4703 | ||
72a979f0 | 4704 | return (video_supported != TPACPI_VIDEO_NONE) ? 0 : 1; |
1da177e4 LT |
4705 | } |
4706 | ||
56b6aeb0 HMH |
4707 | static void video_exit(void) |
4708 | { | |
83f34724 HMH |
4709 | dbg_printk(TPACPI_DBG_EXIT, |
4710 | "restoring original video autoswitch mode\n"); | |
4711 | if (video_autosw_set(video_orig_autosw)) | |
0978e012 | 4712 | pr_err("error while trying to restore original " |
83f34724 | 4713 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
4714 | } |
4715 | ||
83f34724 | 4716 | static int video_outputsw_get(void) |
1da177e4 LT |
4717 | { |
4718 | int status = 0; | |
4719 | int i; | |
4720 | ||
83f34724 HMH |
4721 | switch (video_supported) { |
4722 | case TPACPI_VIDEO_570: | |
4723 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
4724 | TP_ACPI_VIDEO_570_PHSCMD)) | |
4725 | return -EIO; | |
4726 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
4727 | break; | |
4728 | case TPACPI_VIDEO_770: | |
4729 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4730 | return -EIO; | |
4731 | if (i) | |
4732 | status |= TP_ACPI_VIDEO_S_LCD; | |
4733 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4734 | return -EIO; | |
4735 | if (i) | |
4736 | status |= TP_ACPI_VIDEO_S_CRT; | |
4737 | break; | |
4738 | case TPACPI_VIDEO_NEW: | |
4739 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
4740 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
4741 | return -EIO; | |
4742 | if (i) | |
4743 | status |= TP_ACPI_VIDEO_S_CRT; | |
4744 | ||
4745 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
4746 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
4747 | return -EIO; | |
4748 | if (i) | |
4749 | status |= TP_ACPI_VIDEO_S_LCD; | |
4750 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
4751 | return -EIO; | |
4752 | if (i) | |
4753 | status |= TP_ACPI_VIDEO_S_DVI; | |
4754 | break; | |
4755 | default: | |
4756 | return -ENOSYS; | |
78f81cc4 BD |
4757 | } |
4758 | ||
4759 | return status; | |
4760 | } | |
1da177e4 | 4761 | |
83f34724 | 4762 | static int video_outputsw_set(int status) |
78f81cc4 | 4763 | { |
83f34724 HMH |
4764 | int autosw; |
4765 | int res = 0; | |
4766 | ||
4767 | switch (video_supported) { | |
4768 | case TPACPI_VIDEO_570: | |
4769 | res = acpi_evalf(NULL, NULL, | |
4770 | "\\_SB.PHS2", "vdd", | |
4771 | TP_ACPI_VIDEO_570_PHS2CMD, | |
4772 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
4773 | break; | |
4774 | case TPACPI_VIDEO_770: | |
4775 | autosw = video_autosw_get(); | |
4776 | if (autosw < 0) | |
4777 | return autosw; | |
1da177e4 | 4778 | |
83f34724 HMH |
4779 | res = video_autosw_set(1); |
4780 | if (res) | |
4781 | return res; | |
4782 | res = acpi_evalf(vid_handle, NULL, | |
4783 | "ASWT", "vdd", status * 0x100, 0); | |
4784 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 4785 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 HMH |
4786 | return -EIO; |
4787 | } | |
4788 | break; | |
4789 | case TPACPI_VIDEO_NEW: | |
4790 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 4791 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
4792 | break; |
4793 | default: | |
4794 | return -ENOSYS; | |
4795 | } | |
1da177e4 | 4796 | |
72a979f0 | 4797 | return (res) ? 0 : -EIO; |
1da177e4 LT |
4798 | } |
4799 | ||
83f34724 | 4800 | static int video_autosw_get(void) |
78f81cc4 | 4801 | { |
83f34724 | 4802 | int autosw = 0; |
78f81cc4 | 4803 | |
83f34724 HMH |
4804 | switch (video_supported) { |
4805 | case TPACPI_VIDEO_570: | |
4806 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
4807 | return -EIO; | |
4808 | break; | |
4809 | case TPACPI_VIDEO_770: | |
4810 | case TPACPI_VIDEO_NEW: | |
4811 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
4812 | return -EIO; | |
4813 | break; | |
4814 | default: | |
4815 | return -ENOSYS; | |
4816 | } | |
78f81cc4 | 4817 | |
83f34724 | 4818 | return autosw & 1; |
78f81cc4 BD |
4819 | } |
4820 | ||
83f34724 | 4821 | static int video_autosw_set(int enable) |
78f81cc4 | 4822 | { |
72a979f0 | 4823 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable) ? 1 : 0)) |
83f34724 HMH |
4824 | return -EIO; |
4825 | return 0; | |
78f81cc4 BD |
4826 | } |
4827 | ||
83f34724 | 4828 | static int video_outputsw_cycle(void) |
78f81cc4 | 4829 | { |
83f34724 HMH |
4830 | int autosw = video_autosw_get(); |
4831 | int res; | |
78f81cc4 | 4832 | |
83f34724 HMH |
4833 | if (autosw < 0) |
4834 | return autosw; | |
78f81cc4 | 4835 | |
83f34724 HMH |
4836 | switch (video_supported) { |
4837 | case TPACPI_VIDEO_570: | |
4838 | res = video_autosw_set(1); | |
4839 | if (res) | |
4840 | return res; | |
4841 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
4842 | break; | |
4843 | case TPACPI_VIDEO_770: | |
4844 | case TPACPI_VIDEO_NEW: | |
4845 | res = video_autosw_set(1); | |
4846 | if (res) | |
4847 | return res; | |
4848 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
4849 | break; | |
4850 | default: | |
4851 | return -ENOSYS; | |
4852 | } | |
4853 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 4854 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 | 4855 | return -EIO; |
78f81cc4 BD |
4856 | } |
4857 | ||
72a979f0 | 4858 | return (res) ? 0 : -EIO; |
83f34724 HMH |
4859 | } |
4860 | ||
4861 | static int video_expand_toggle(void) | |
4862 | { | |
4863 | switch (video_supported) { | |
4864 | case TPACPI_VIDEO_570: | |
72a979f0 | 4865 | return acpi_evalf(ec_handle, NULL, "_Q17", "v") ? |
83f34724 HMH |
4866 | 0 : -EIO; |
4867 | case TPACPI_VIDEO_770: | |
72a979f0 | 4868 | return acpi_evalf(vid_handle, NULL, "VEXP", "v") ? |
83f34724 HMH |
4869 | 0 : -EIO; |
4870 | case TPACPI_VIDEO_NEW: | |
72a979f0 | 4871 | return acpi_evalf(NULL, NULL, "\\VEXP", "v") ? |
83f34724 HMH |
4872 | 0 : -EIO; |
4873 | default: | |
4874 | return -ENOSYS; | |
4875 | } | |
4876 | /* not reached */ | |
78f81cc4 BD |
4877 | } |
4878 | ||
887965e6 | 4879 | static int video_read(struct seq_file *m) |
56b6aeb0 | 4880 | { |
83f34724 | 4881 | int status, autosw; |
56b6aeb0 | 4882 | |
83f34724 | 4883 | if (video_supported == TPACPI_VIDEO_NONE) { |
887965e6 AD |
4884 | seq_printf(m, "status:\t\tnot supported\n"); |
4885 | return 0; | |
56b6aeb0 HMH |
4886 | } |
4887 | ||
b525c06c HMH |
4888 | /* Even reads can crash X.org, so... */ |
4889 | if (!capable(CAP_SYS_ADMIN)) | |
4890 | return -EPERM; | |
4891 | ||
83f34724 HMH |
4892 | status = video_outputsw_get(); |
4893 | if (status < 0) | |
4894 | return status; | |
4895 | ||
4896 | autosw = video_autosw_get(); | |
4897 | if (autosw < 0) | |
4898 | return autosw; | |
4899 | ||
887965e6 AD |
4900 | seq_printf(m, "status:\t\tsupported\n"); |
4901 | seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0)); | |
4902 | seq_printf(m, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 4903 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
4904 | seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3)); |
4905 | seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0)); | |
4906 | seq_printf(m, "commands:\tlcd_enable, lcd_disable\n"); | |
4907 | seq_printf(m, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 4908 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
4909 | seq_printf(m, "commands:\tdvi_enable, dvi_disable\n"); |
4910 | seq_printf(m, "commands:\tauto_enable, auto_disable\n"); | |
4911 | seq_printf(m, "commands:\tvideo_switch, expand_toggle\n"); | |
56b6aeb0 | 4912 | |
887965e6 | 4913 | return 0; |
56b6aeb0 HMH |
4914 | } |
4915 | ||
78f81cc4 | 4916 | static int video_write(char *buf) |
1da177e4 LT |
4917 | { |
4918 | char *cmd; | |
4919 | int enable, disable, status; | |
83f34724 | 4920 | int res; |
1da177e4 | 4921 | |
83f34724 | 4922 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
4923 | return -ENODEV; |
4924 | ||
b525c06c HMH |
4925 | /* Even reads can crash X.org, let alone writes... */ |
4926 | if (!capable(CAP_SYS_ADMIN)) | |
4927 | return -EPERM; | |
4928 | ||
83f34724 HMH |
4929 | enable = 0; |
4930 | disable = 0; | |
1da177e4 LT |
4931 | |
4932 | while ((cmd = next_cmd(&buf))) { | |
4933 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 4934 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 4935 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 4936 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 4937 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 4938 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 4939 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 4940 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 4941 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 4942 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 4943 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 4944 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 4945 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 4946 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 4947 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
4948 | res = video_autosw_set(1); |
4949 | if (res) | |
4950 | return res; | |
1da177e4 | 4951 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
4952 | res = video_autosw_set(0); |
4953 | if (res) | |
4954 | return res; | |
1da177e4 | 4955 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
4956 | res = video_outputsw_cycle(); |
4957 | if (res) | |
4958 | return res; | |
1da177e4 | 4959 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
4960 | res = video_expand_toggle(); |
4961 | if (res) | |
4962 | return res; | |
1da177e4 LT |
4963 | } else |
4964 | return -EINVAL; | |
4965 | } | |
4966 | ||
4967 | if (enable || disable) { | |
83f34724 HMH |
4968 | status = video_outputsw_get(); |
4969 | if (status < 0) | |
4970 | return status; | |
4971 | res = video_outputsw_set((status & ~disable) | enable); | |
4972 | if (res) | |
4973 | return res; | |
1da177e4 LT |
4974 | } |
4975 | ||
4976 | return 0; | |
4977 | } | |
4978 | ||
a5763f22 HMH |
4979 | static struct ibm_struct video_driver_data = { |
4980 | .name = "video", | |
4981 | .read = video_read, | |
4982 | .write = video_write, | |
4983 | .exit = video_exit, | |
4984 | }; | |
4985 | ||
d7c1d17d HMH |
4986 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
4987 | ||
56b6aeb0 HMH |
4988 | /************************************************************************* |
4989 | * Light (thinklight) subdriver | |
4990 | */ | |
1da177e4 | 4991 | |
e0c7dfe7 HMH |
4992 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
4993 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 4994 | |
4fa6811b HMH |
4995 | static int light_get_status(void) |
4996 | { | |
4997 | int status = 0; | |
4998 | ||
4999 | if (tp_features.light_status) { | |
5000 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
5001 | return -EIO; | |
5002 | return (!!status); | |
5003 | } | |
5004 | ||
5005 | return -ENXIO; | |
5006 | } | |
5007 | ||
5008 | static int light_set_status(int status) | |
5009 | { | |
5010 | int rc; | |
5011 | ||
5012 | if (tp_features.light) { | |
5013 | if (cmos_handle) { | |
5014 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
72a979f0 | 5015 | (status) ? |
4fa6811b HMH |
5016 | TP_CMOS_THINKLIGHT_ON : |
5017 | TP_CMOS_THINKLIGHT_OFF); | |
5018 | } else { | |
5019 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
72a979f0 | 5020 | (status) ? 1 : 0); |
4fa6811b | 5021 | } |
72a979f0 | 5022 | return (rc) ? 0 : -EIO; |
4fa6811b HMH |
5023 | } |
5024 | ||
5025 | return -ENXIO; | |
5026 | } | |
5027 | ||
e306501d HMH |
5028 | static void light_set_status_worker(struct work_struct *work) |
5029 | { | |
5030 | struct tpacpi_led_classdev *data = | |
5031 | container_of(work, struct tpacpi_led_classdev, work); | |
5032 | ||
5033 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 5034 | light_set_status((data->new_state != TPACPI_LED_OFF)); |
e306501d HMH |
5035 | } |
5036 | ||
5037 | static void light_sysfs_set(struct led_classdev *led_cdev, | |
5038 | enum led_brightness brightness) | |
5039 | { | |
5040 | struct tpacpi_led_classdev *data = | |
5041 | container_of(led_cdev, | |
5042 | struct tpacpi_led_classdev, | |
5043 | led_classdev); | |
75bd3bf2 HMH |
5044 | data->new_state = (brightness != LED_OFF) ? |
5045 | TPACPI_LED_ON : TPACPI_LED_OFF; | |
e0e3c061 | 5046 | queue_work(tpacpi_wq, &data->work); |
e306501d HMH |
5047 | } |
5048 | ||
5049 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
5050 | { | |
72a979f0 | 5051 | return (light_get_status() == 1) ? LED_FULL : LED_OFF; |
e306501d HMH |
5052 | } |
5053 | ||
5054 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
5055 | .led_classdev = { | |
5056 | .name = "tpacpi::thinklight", | |
5057 | .brightness_set = &light_sysfs_set, | |
5058 | .brightness_get = &light_sysfs_get, | |
5059 | } | |
5060 | }; | |
5061 | ||
a5763f22 | 5062 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 5063 | { |
9c0a76e1 | 5064 | int rc; |
e306501d | 5065 | |
fe08bc4b HMH |
5066 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
5067 | ||
e28393c0 HMH |
5068 | if (tpacpi_is_ibm()) { |
5069 | TPACPI_ACPIHANDLE_INIT(ledb); | |
5070 | TPACPI_ACPIHANDLE_INIT(lght); | |
5071 | } | |
e0c7dfe7 | 5072 | TPACPI_ACPIHANDLE_INIT(cmos); |
e306501d | 5073 | INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker); |
5fba344c | 5074 | |
78f81cc4 | 5075 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 5076 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 5077 | |
d8fd94d9 | 5078 | if (tp_features.light) |
78f81cc4 BD |
5079 | /* light status not supported on |
5080 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
5081 | tp_features.light_status = |
5082 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 5083 | |
9c0a76e1 HMH |
5084 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
5085 | str_supported(tp_features.light), | |
5086 | str_supported(tp_features.light_status)); | |
fe08bc4b | 5087 | |
9c0a76e1 HMH |
5088 | if (!tp_features.light) |
5089 | return 1; | |
5090 | ||
5091 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5092 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
5093 | |
5094 | if (rc < 0) { | |
5095 | tp_features.light = 0; | |
5096 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
5097 | } else { |
5098 | rc = 0; | |
e306501d | 5099 | } |
9c0a76e1 | 5100 | |
e306501d HMH |
5101 | return rc; |
5102 | } | |
5103 | ||
5104 | static void light_exit(void) | |
5105 | { | |
5106 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
6d394e19 | 5107 | flush_workqueue(tpacpi_wq); |
1da177e4 LT |
5108 | } |
5109 | ||
887965e6 | 5110 | static int light_read(struct seq_file *m) |
1da177e4 | 5111 | { |
4fa6811b | 5112 | int status; |
1da177e4 | 5113 | |
d8fd94d9 | 5114 | if (!tp_features.light) { |
887965e6 | 5115 | seq_printf(m, "status:\t\tnot supported\n"); |
d8fd94d9 | 5116 | } else if (!tp_features.light_status) { |
887965e6 AD |
5117 | seq_printf(m, "status:\t\tunknown\n"); |
5118 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 5119 | } else { |
4fa6811b HMH |
5120 | status = light_get_status(); |
5121 | if (status < 0) | |
5122 | return status; | |
887965e6 AD |
5123 | seq_printf(m, "status:\t\t%s\n", onoff(status, 0)); |
5124 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 5125 | } |
1da177e4 | 5126 | |
887965e6 | 5127 | return 0; |
1da177e4 LT |
5128 | } |
5129 | ||
78f81cc4 | 5130 | static int light_write(char *buf) |
1da177e4 | 5131 | { |
1da177e4 | 5132 | char *cmd; |
4fa6811b | 5133 | int newstatus = 0; |
78f81cc4 | 5134 | |
d8fd94d9 | 5135 | if (!tp_features.light) |
78f81cc4 BD |
5136 | return -ENODEV; |
5137 | ||
1da177e4 LT |
5138 | while ((cmd = next_cmd(&buf))) { |
5139 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 5140 | newstatus = 1; |
1da177e4 | 5141 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 5142 | newstatus = 0; |
1da177e4 LT |
5143 | } else |
5144 | return -EINVAL; | |
1da177e4 LT |
5145 | } |
5146 | ||
4fa6811b | 5147 | return light_set_status(newstatus); |
1da177e4 LT |
5148 | } |
5149 | ||
a5763f22 HMH |
5150 | static struct ibm_struct light_driver_data = { |
5151 | .name = "light", | |
5152 | .read = light_read, | |
5153 | .write = light_write, | |
e306501d | 5154 | .exit = light_exit, |
a5763f22 HMH |
5155 | }; |
5156 | ||
56b6aeb0 HMH |
5157 | /************************************************************************* |
5158 | * CMOS subdriver | |
5159 | */ | |
5160 | ||
b616004c HMH |
5161 | /* sysfs cmos_command -------------------------------------------------- */ |
5162 | static ssize_t cmos_command_store(struct device *dev, | |
5163 | struct device_attribute *attr, | |
5164 | const char *buf, size_t count) | |
5165 | { | |
5166 | unsigned long cmos_cmd; | |
5167 | int res; | |
5168 | ||
5169 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
5170 | return -EINVAL; | |
5171 | ||
5172 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
72a979f0 | 5173 | return (res) ? res : count; |
b616004c HMH |
5174 | } |
5175 | ||
b4dd04ac | 5176 | static DEVICE_ATTR_WO(cmos_command); |
b616004c HMH |
5177 | |
5178 | /* --------------------------------------------------------------------- */ | |
5179 | ||
a5763f22 | 5180 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 5181 | { |
b616004c HMH |
5182 | int res; |
5183 | ||
fe08bc4b HMH |
5184 | vdbg_printk(TPACPI_DBG_INIT, |
5185 | "initializing cmos commands subdriver\n"); | |
5186 | ||
e0c7dfe7 | 5187 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 5188 | |
fe08bc4b HMH |
5189 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
5190 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
5191 | |
5192 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5193 | if (res) | |
5194 | return res; | |
5195 | ||
72a979f0 | 5196 | return (cmos_handle) ? 0 : 1; |
5fba344c HMH |
5197 | } |
5198 | ||
b616004c HMH |
5199 | static void cmos_exit(void) |
5200 | { | |
5201 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5202 | } | |
5203 | ||
887965e6 | 5204 | static int cmos_read(struct seq_file *m) |
1da177e4 | 5205 | { |
78f81cc4 BD |
5206 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
5207 | R30, R31, T20-22, X20-21 */ | |
1da177e4 | 5208 | if (!cmos_handle) |
887965e6 | 5209 | seq_printf(m, "status:\t\tnot supported\n"); |
1da177e4 | 5210 | else { |
887965e6 AD |
5211 | seq_printf(m, "status:\t\tsupported\n"); |
5212 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n"); | |
1da177e4 LT |
5213 | } |
5214 | ||
887965e6 | 5215 | return 0; |
1da177e4 LT |
5216 | } |
5217 | ||
78f81cc4 | 5218 | static int cmos_write(char *buf) |
1da177e4 LT |
5219 | { |
5220 | char *cmd; | |
c9bea99c | 5221 | int cmos_cmd, res; |
1da177e4 LT |
5222 | |
5223 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
5224 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
5225 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
5226 | /* cmos_cmd set */ |
5227 | } else | |
5228 | return -EINVAL; | |
5229 | ||
c9bea99c HMH |
5230 | res = issue_thinkpad_cmos_command(cmos_cmd); |
5231 | if (res) | |
5232 | return res; | |
1da177e4 LT |
5233 | } |
5234 | ||
5235 | return 0; | |
78f81cc4 BD |
5236 | } |
5237 | ||
a5763f22 HMH |
5238 | static struct ibm_struct cmos_driver_data = { |
5239 | .name = "cmos", | |
5240 | .read = cmos_read, | |
5241 | .write = cmos_write, | |
b616004c | 5242 | .exit = cmos_exit, |
a5763f22 | 5243 | }; |
56b6aeb0 HMH |
5244 | |
5245 | /************************************************************************* | |
5246 | * LED subdriver | |
5247 | */ | |
5248 | ||
f74a27d4 HMH |
5249 | enum led_access_mode { |
5250 | TPACPI_LED_NONE = 0, | |
5251 | TPACPI_LED_570, /* 570 */ | |
5252 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5253 | TPACPI_LED_NEW, /* all others */ | |
5254 | }; | |
5255 | ||
5256 | enum { /* For TPACPI_LED_OLD */ | |
5257 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
5258 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
5259 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
5260 | }; | |
5261 | ||
9a8e1738 | 5262 | static enum led_access_mode led_supported; |
78f81cc4 | 5263 | |
2cbb5c8f | 5264 | static acpi_handle led_handle; |
56b6aeb0 | 5265 | |
f21179a4 | 5266 | #define TPACPI_LED_NUMLEDS 16 |
af116101 HMH |
5267 | static struct tpacpi_led_classdev *tpacpi_leds; |
5268 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 5269 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
5270 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
5271 | "tpacpi::power", | |
5272 | "tpacpi:orange:batt", | |
5273 | "tpacpi:green:batt", | |
5274 | "tpacpi::dock_active", | |
5275 | "tpacpi::bay_active", | |
5276 | "tpacpi::dock_batt", | |
5277 | "tpacpi::unknown_led", | |
5278 | "tpacpi::standby", | |
f21179a4 HMH |
5279 | "tpacpi::dock_status1", |
5280 | "tpacpi::dock_status2", | |
5281 | "tpacpi::unknown_led2", | |
5282 | "tpacpi::unknown_led3", | |
5283 | "tpacpi::thinkvantage", | |
af116101 | 5284 | }; |
f21179a4 | 5285 | #define TPACPI_SAFE_LEDS 0x1081U |
a4d5effc HMH |
5286 | |
5287 | static inline bool tpacpi_is_led_restricted(const unsigned int led) | |
5288 | { | |
5289 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS | |
5290 | return false; | |
5291 | #else | |
f21179a4 | 5292 | return (1U & (TPACPI_SAFE_LEDS >> led)) == 0; |
a4d5effc HMH |
5293 | #endif |
5294 | } | |
af116101 | 5295 | |
24e45bbe | 5296 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
5297 | { |
5298 | int status; | |
af116101 | 5299 | enum led_status_t led_s; |
4fa6811b HMH |
5300 | |
5301 | switch (led_supported) { | |
5302 | case TPACPI_LED_570: | |
5303 | if (!acpi_evalf(ec_handle, | |
5304 | &status, "GLED", "dd", 1 << led)) | |
5305 | return -EIO; | |
72a979f0 | 5306 | led_s = (status == 0) ? |
4fa6811b | 5307 | TPACPI_LED_OFF : |
72a979f0 | 5308 | ((status == 1) ? |
4fa6811b HMH |
5309 | TPACPI_LED_ON : |
5310 | TPACPI_LED_BLINK); | |
af116101 HMH |
5311 | tpacpi_led_state_cache[led] = led_s; |
5312 | return led_s; | |
4fa6811b HMH |
5313 | default: |
5314 | return -ENXIO; | |
5315 | } | |
5316 | ||
5317 | /* not reached */ | |
5318 | } | |
5319 | ||
24e45bbe HMH |
5320 | static int led_set_status(const unsigned int led, |
5321 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
5322 | { |
5323 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
5324 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
5325 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
5326 | |
5327 | int rc = 0; | |
5328 | ||
5329 | switch (led_supported) { | |
5330 | case TPACPI_LED_570: | |
24e45bbe | 5331 | /* 570 */ |
a4d5effc | 5332 | if (unlikely(led > 7)) |
24e45bbe | 5333 | return -EINVAL; |
a4d5effc HMH |
5334 | if (unlikely(tpacpi_is_led_restricted(led))) |
5335 | return -EPERM; | |
24e45bbe HMH |
5336 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5337 | (1 << led), led_sled_arg1[ledstatus])) | |
5338 | rc = -EIO; | |
5339 | break; | |
4fa6811b | 5340 | case TPACPI_LED_OLD: |
24e45bbe | 5341 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
a4d5effc | 5342 | if (unlikely(led > 7)) |
24e45bbe | 5343 | return -EINVAL; |
a4d5effc HMH |
5344 | if (unlikely(tpacpi_is_led_restricted(led))) |
5345 | return -EPERM; | |
24e45bbe HMH |
5346 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); |
5347 | if (rc >= 0) | |
5348 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
5349 | (ledstatus == TPACPI_LED_BLINK) << led); | |
5350 | if (rc >= 0) | |
5351 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
5352 | (ledstatus != TPACPI_LED_OFF) << led); | |
5353 | break; | |
4fa6811b | 5354 | case TPACPI_LED_NEW: |
24e45bbe | 5355 | /* all others */ |
a4d5effc HMH |
5356 | if (unlikely(led >= TPACPI_LED_NUMLEDS)) |
5357 | return -EINVAL; | |
5358 | if (unlikely(tpacpi_is_led_restricted(led))) | |
5359 | return -EPERM; | |
24e45bbe HMH |
5360 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5361 | led, led_led_arg1[ledstatus])) | |
5362 | rc = -EIO; | |
5363 | break; | |
4fa6811b HMH |
5364 | default: |
5365 | rc = -ENXIO; | |
5366 | } | |
5367 | ||
af116101 HMH |
5368 | if (!rc) |
5369 | tpacpi_led_state_cache[led] = ledstatus; | |
5370 | ||
5371 | return rc; | |
5372 | } | |
5373 | ||
af116101 HMH |
5374 | static void led_set_status_worker(struct work_struct *work) |
5375 | { | |
5376 | struct tpacpi_led_classdev *data = | |
5377 | container_of(work, struct tpacpi_led_classdev, work); | |
5378 | ||
5379 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
75bd3bf2 | 5380 | led_set_status(data->led, data->new_state); |
af116101 HMH |
5381 | } |
5382 | ||
5383 | static void led_sysfs_set(struct led_classdev *led_cdev, | |
5384 | enum led_brightness brightness) | |
5385 | { | |
5386 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5387 | struct tpacpi_led_classdev, led_classdev); | |
5388 | ||
75bd3bf2 HMH |
5389 | if (brightness == LED_OFF) |
5390 | data->new_state = TPACPI_LED_OFF; | |
5391 | else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK) | |
5392 | data->new_state = TPACPI_LED_ON; | |
5393 | else | |
5394 | data->new_state = TPACPI_LED_BLINK; | |
5395 | ||
e0e3c061 | 5396 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5397 | } |
5398 | ||
5399 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
5400 | unsigned long *delay_on, unsigned long *delay_off) | |
5401 | { | |
5402 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5403 | struct tpacpi_led_classdev, led_classdev); | |
5404 | ||
5405 | /* Can we choose the flash rate? */ | |
5406 | if (*delay_on == 0 && *delay_off == 0) { | |
5407 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
5408 | *delay_on = 500; /* ms */ | |
5409 | *delay_off = 500; /* ms */ | |
5410 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
5411 | return -EINVAL; | |
5412 | ||
75bd3bf2 | 5413 | data->new_state = TPACPI_LED_BLINK; |
e0e3c061 | 5414 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
5415 | |
5416 | return 0; | |
5417 | } | |
5418 | ||
5419 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
5420 | { | |
5421 | int rc; | |
5422 | ||
5423 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5424 | struct tpacpi_led_classdev, led_classdev); | |
5425 | ||
5426 | rc = led_get_status(data->led); | |
5427 | ||
5428 | if (rc == TPACPI_LED_OFF || rc < 0) | |
5429 | rc = LED_OFF; /* no error handling in led class :( */ | |
5430 | else | |
5431 | rc = LED_FULL; | |
5432 | ||
4fa6811b HMH |
5433 | return rc; |
5434 | } | |
5435 | ||
af116101 HMH |
5436 | static void led_exit(void) |
5437 | { | |
5438 | unsigned int i; | |
5439 | ||
5440 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
5441 | if (tpacpi_leds[i].led_classdev.name) | |
5442 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
5443 | } | |
5444 | ||
e03e389d | 5445 | flush_workqueue(tpacpi_wq); |
af116101 | 5446 | kfree(tpacpi_leds); |
af116101 HMH |
5447 | } |
5448 | ||
a4d5effc HMH |
5449 | static int __init tpacpi_init_led(unsigned int led) |
5450 | { | |
5451 | int rc; | |
5452 | ||
5453 | tpacpi_leds[led].led = led; | |
5454 | ||
f21179a4 HMH |
5455 | /* LEDs with no name don't get registered */ |
5456 | if (!tpacpi_led_names[led]) | |
5457 | return 0; | |
5458 | ||
a4d5effc HMH |
5459 | tpacpi_leds[led].led_classdev.brightness_set = &led_sysfs_set; |
5460 | tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set; | |
5461 | if (led_supported == TPACPI_LED_570) | |
5462 | tpacpi_leds[led].led_classdev.brightness_get = | |
5463 | &led_sysfs_get; | |
5464 | ||
5465 | tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led]; | |
5466 | ||
5467 | INIT_WORK(&tpacpi_leds[led].work, led_set_status_worker); | |
5468 | ||
5469 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5470 | &tpacpi_leds[led].led_classdev); | |
5471 | if (rc < 0) | |
5472 | tpacpi_leds[led].led_classdev.name = NULL; | |
5473 | ||
5474 | return rc; | |
5475 | } | |
5476 | ||
f21179a4 HMH |
5477 | static const struct tpacpi_quirk led_useful_qtable[] __initconst = { |
5478 | TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */ | |
5479 | TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */ | |
5480 | TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */ | |
5481 | ||
5482 | TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */ | |
5483 | TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */ | |
5484 | TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */ | |
5485 | TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */ | |
5486 | TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */ | |
5487 | TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */ | |
5488 | TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */ | |
5489 | TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */ | |
5490 | ||
5491 | TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */ | |
5492 | TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */ | |
5493 | TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */ | |
5494 | TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */ | |
5495 | TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */ | |
5496 | ||
5497 | TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */ | |
5498 | TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */ | |
5499 | TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */ | |
5500 | TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */ | |
5501 | ||
5502 | /* (1) - may have excess leds enabled on MSB */ | |
5503 | ||
5504 | /* Defaults (order matters, keep last, don't reorder!) */ | |
5505 | { /* Lenovo */ | |
5506 | .vendor = PCI_VENDOR_ID_LENOVO, | |
5507 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5508 | .quirks = 0x1fffU, | |
5509 | }, | |
5510 | { /* IBM ThinkPads with no EC version string */ | |
5511 | .vendor = PCI_VENDOR_ID_IBM, | |
5512 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN, | |
5513 | .quirks = 0x00ffU, | |
5514 | }, | |
5515 | { /* IBM ThinkPads with EC version string */ | |
5516 | .vendor = PCI_VENDOR_ID_IBM, | |
5517 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
5518 | .quirks = 0x00bfU, | |
5519 | }, | |
5520 | }; | |
5521 | ||
5522 | #undef TPACPI_LEDQ_IBM | |
5523 | #undef TPACPI_LEDQ_LNV | |
5524 | ||
2cbb5c8f HMH |
5525 | static enum led_access_mode __init led_init_detect_mode(void) |
5526 | { | |
5527 | acpi_status status; | |
5528 | ||
5529 | if (tpacpi_is_ibm()) { | |
5530 | /* 570 */ | |
5531 | status = acpi_get_handle(ec_handle, "SLED", &led_handle); | |
5532 | if (ACPI_SUCCESS(status)) | |
5533 | return TPACPI_LED_570; | |
5534 | ||
5535 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5536 | status = acpi_get_handle(ec_handle, "SYSL", &led_handle); | |
5537 | if (ACPI_SUCCESS(status)) | |
5538 | return TPACPI_LED_OLD; | |
5539 | } | |
5540 | ||
5541 | /* most others */ | |
5542 | status = acpi_get_handle(ec_handle, "LED", &led_handle); | |
5543 | if (ACPI_SUCCESS(status)) | |
5544 | return TPACPI_LED_NEW; | |
5545 | ||
5546 | /* R30, R31, and unknown firmwares */ | |
5547 | led_handle = NULL; | |
5548 | return TPACPI_LED_NONE; | |
5549 | } | |
5550 | ||
a5763f22 | 5551 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5552 | { |
af116101 HMH |
5553 | unsigned int i; |
5554 | int rc; | |
f21179a4 | 5555 | unsigned long useful_leds; |
af116101 | 5556 | |
fe08bc4b HMH |
5557 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
5558 | ||
2cbb5c8f | 5559 | led_supported = led_init_detect_mode(); |
78f81cc4 | 5560 | |
fcb44e12 AL |
5561 | if (led_supported != TPACPI_LED_NONE) { |
5562 | useful_leds = tpacpi_check_quirks(led_useful_qtable, | |
5563 | ARRAY_SIZE(led_useful_qtable)); | |
5564 | ||
5565 | if (!useful_leds) { | |
5566 | led_handle = NULL; | |
5567 | led_supported = TPACPI_LED_NONE; | |
5568 | } | |
5569 | } | |
5570 | ||
fe08bc4b HMH |
5571 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
5572 | str_supported(led_supported), led_supported); | |
5573 | ||
f21179a4 HMH |
5574 | if (led_supported == TPACPI_LED_NONE) |
5575 | return 1; | |
5576 | ||
af116101 HMH |
5577 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
5578 | GFP_KERNEL); | |
5579 | if (!tpacpi_leds) { | |
0978e012 | 5580 | pr_err("Out of memory for LED data\n"); |
af116101 HMH |
5581 | return -ENOMEM; |
5582 | } | |
5583 | ||
5584 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
edf2d778 AL |
5585 | tpacpi_leds[i].led = -1; |
5586 | ||
f21179a4 HMH |
5587 | if (!tpacpi_is_led_restricted(i) && |
5588 | test_bit(i, &useful_leds)) { | |
a4d5effc HMH |
5589 | rc = tpacpi_init_led(i); |
5590 | if (rc < 0) { | |
5591 | led_exit(); | |
5592 | return rc; | |
5593 | } | |
af116101 HMH |
5594 | } |
5595 | } | |
5596 | ||
a4d5effc | 5597 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS |
0978e012 JP |
5598 | pr_notice("warning: userspace override of important " |
5599 | "firmware LEDs is enabled\n"); | |
a4d5effc | 5600 | #endif |
f21179a4 | 5601 | return 0; |
78f81cc4 BD |
5602 | } |
5603 | ||
4fa6811b HMH |
5604 | #define str_led_status(s) \ |
5605 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
5606 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 | 5607 | |
887965e6 | 5608 | static int led_read(struct seq_file *m) |
1da177e4 | 5609 | { |
78f81cc4 | 5610 | if (!led_supported) { |
887965e6 AD |
5611 | seq_printf(m, "status:\t\tnot supported\n"); |
5612 | return 0; | |
78f81cc4 | 5613 | } |
887965e6 | 5614 | seq_printf(m, "status:\t\tsupported\n"); |
78f81cc4 | 5615 | |
efa27145 | 5616 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
5617 | /* 570 */ |
5618 | int i, status; | |
5619 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
5620 | status = led_get_status(i); |
5621 | if (status < 0) | |
78f81cc4 | 5622 | return -EIO; |
887965e6 | 5623 | seq_printf(m, "%d:\t\t%s\n", |
4fa6811b | 5624 | i, str_led_status(status)); |
78f81cc4 BD |
5625 | } |
5626 | } | |
5627 | ||
887965e6 | 5628 | seq_printf(m, "commands:\t" |
f21179a4 | 5629 | "<led> on, <led> off, <led> blink (<led> is 0-15)\n"); |
1da177e4 | 5630 | |
887965e6 | 5631 | return 0; |
1da177e4 LT |
5632 | } |
5633 | ||
78f81cc4 | 5634 | static int led_write(char *buf) |
1da177e4 LT |
5635 | { |
5636 | char *cmd; | |
4fa6811b HMH |
5637 | int led, rc; |
5638 | enum led_status_t s; | |
78f81cc4 BD |
5639 | |
5640 | if (!led_supported) | |
5641 | return -ENODEV; | |
1da177e4 LT |
5642 | |
5643 | while ((cmd = next_cmd(&buf))) { | |
edf2d778 | 5644 | if (sscanf(cmd, "%d", &led) != 1) |
1da177e4 LT |
5645 | return -EINVAL; |
5646 | ||
edf2d778 AL |
5647 | if (led < 0 || led > (TPACPI_LED_NUMLEDS - 1) || |
5648 | tpacpi_leds[led].led < 0) | |
5649 | return -ENODEV; | |
5650 | ||
78f81cc4 | 5651 | if (strstr(cmd, "off")) { |
4fa6811b | 5652 | s = TPACPI_LED_OFF; |
1da177e4 | 5653 | } else if (strstr(cmd, "on")) { |
4fa6811b | 5654 | s = TPACPI_LED_ON; |
78f81cc4 | 5655 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 5656 | s = TPACPI_LED_BLINK; |
78f81cc4 | 5657 | } else { |
4fa6811b | 5658 | return -EINVAL; |
78f81cc4 | 5659 | } |
4fa6811b HMH |
5660 | |
5661 | rc = led_set_status(led, s); | |
5662 | if (rc < 0) | |
5663 | return rc; | |
78f81cc4 BD |
5664 | } |
5665 | ||
5666 | return 0; | |
5667 | } | |
5668 | ||
a5763f22 HMH |
5669 | static struct ibm_struct led_driver_data = { |
5670 | .name = "led", | |
5671 | .read = led_read, | |
5672 | .write = led_write, | |
af116101 | 5673 | .exit = led_exit, |
a5763f22 HMH |
5674 | }; |
5675 | ||
56b6aeb0 HMH |
5676 | /************************************************************************* |
5677 | * Beep subdriver | |
5678 | */ | |
5679 | ||
e0c7dfe7 | 5680 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 5681 | |
60201732 HMH |
5682 | #define TPACPI_BEEP_Q1 0x0001 |
5683 | ||
5684 | static const struct tpacpi_quirk beep_quirk_table[] __initconst = { | |
5685 | TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */ | |
5686 | TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */ | |
5687 | }; | |
5688 | ||
a5763f22 | 5689 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 5690 | { |
60201732 HMH |
5691 | unsigned long quirks; |
5692 | ||
fe08bc4b HMH |
5693 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
5694 | ||
e0c7dfe7 | 5695 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 5696 | |
fe08bc4b HMH |
5697 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
5698 | str_supported(beep_handle != NULL)); | |
5699 | ||
60201732 HMH |
5700 | quirks = tpacpi_check_quirks(beep_quirk_table, |
5701 | ARRAY_SIZE(beep_quirk_table)); | |
5702 | ||
5703 | tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1); | |
5704 | ||
72a979f0 | 5705 | return (beep_handle) ? 0 : 1; |
5fba344c HMH |
5706 | } |
5707 | ||
887965e6 | 5708 | static int beep_read(struct seq_file *m) |
78f81cc4 | 5709 | { |
78f81cc4 | 5710 | if (!beep_handle) |
887965e6 | 5711 | seq_printf(m, "status:\t\tnot supported\n"); |
78f81cc4 | 5712 | else { |
887965e6 AD |
5713 | seq_printf(m, "status:\t\tsupported\n"); |
5714 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
78f81cc4 BD |
5715 | } |
5716 | ||
887965e6 | 5717 | return 0; |
78f81cc4 BD |
5718 | } |
5719 | ||
5720 | static int beep_write(char *buf) | |
5721 | { | |
5722 | char *cmd; | |
5723 | int beep_cmd; | |
5724 | ||
5725 | if (!beep_handle) | |
5726 | return -ENODEV; | |
5727 | ||
5728 | while ((cmd = next_cmd(&buf))) { | |
5729 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
5730 | beep_cmd >= 0 && beep_cmd <= 17) { | |
5731 | /* beep_cmd set */ | |
5732 | } else | |
5733 | return -EINVAL; | |
60201732 HMH |
5734 | if (tp_features.beep_needs_two_args) { |
5735 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", | |
5736 | beep_cmd, 0)) | |
5737 | return -EIO; | |
5738 | } else { | |
5739 | if (!acpi_evalf(beep_handle, NULL, NULL, "vd", | |
5740 | beep_cmd)) | |
5741 | return -EIO; | |
5742 | } | |
78f81cc4 BD |
5743 | } |
5744 | ||
5745 | return 0; | |
5746 | } | |
5747 | ||
a5763f22 HMH |
5748 | static struct ibm_struct beep_driver_data = { |
5749 | .name = "beep", | |
5750 | .read = beep_read, | |
5751 | .write = beep_write, | |
5752 | }; | |
5753 | ||
56b6aeb0 HMH |
5754 | /************************************************************************* |
5755 | * Thermal subdriver | |
5756 | */ | |
78f81cc4 | 5757 | |
f74a27d4 HMH |
5758 | enum thermal_access_mode { |
5759 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
5760 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
5761 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
5762 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
5763 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
5764 | }; | |
5765 | ||
5766 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
5767 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
5768 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
5769 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
9ebd9e83 HMH |
5770 | |
5771 | TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ | |
f74a27d4 HMH |
5772 | }; |
5773 | ||
9ebd9e83 | 5774 | |
f74a27d4 HMH |
5775 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ |
5776 | struct ibm_thermal_sensors_struct { | |
5777 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
5778 | }; | |
5779 | ||
a26f878a | 5780 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 5781 | |
b21a15f6 HMH |
5782 | /* idx is zero-based */ |
5783 | static int thermal_get_sensor(int idx, s32 *value) | |
5784 | { | |
5785 | int t; | |
5786 | s8 tmp; | |
5787 | char tmpi[5]; | |
5788 | ||
5789 | t = TP_EC_THERMAL_TMP0; | |
5790 | ||
5791 | switch (thermal_read_mode) { | |
5792 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
5793 | case TPACPI_THERMAL_TPEC_16: | |
5794 | if (idx >= 8 && idx <= 15) { | |
5795 | t = TP_EC_THERMAL_TMP8; | |
5796 | idx -= 8; | |
5797 | } | |
5798 | /* fallthrough */ | |
5799 | #endif | |
5800 | case TPACPI_THERMAL_TPEC_8: | |
5801 | if (idx <= 7) { | |
5802 | if (!acpi_ec_read(t + idx, &tmp)) | |
5803 | return -EIO; | |
5804 | *value = tmp * 1000; | |
5805 | return 0; | |
5806 | } | |
5807 | break; | |
5808 | ||
5809 | case TPACPI_THERMAL_ACPI_UPDT: | |
5810 | if (idx <= 7) { | |
5811 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5812 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
5813 | return -EIO; | |
5814 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5815 | return -EIO; | |
5816 | *value = (t - 2732) * 100; | |
5817 | return 0; | |
5818 | } | |
5819 | break; | |
5820 | ||
5821 | case TPACPI_THERMAL_ACPI_TMP07: | |
5822 | if (idx <= 7) { | |
5823 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5824 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5825 | return -EIO; | |
5826 | if (t > 127 || t < -127) | |
5827 | t = TP_EC_THERMAL_TMP_NA; | |
5828 | *value = t * 1000; | |
5829 | return 0; | |
5830 | } | |
5831 | break; | |
5832 | ||
5833 | case TPACPI_THERMAL_NONE: | |
5834 | default: | |
5835 | return -ENOSYS; | |
5836 | } | |
5837 | ||
5838 | return -EINVAL; | |
5839 | } | |
5840 | ||
5841 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
5842 | { | |
5843 | int res, i; | |
5844 | int n; | |
5845 | ||
5846 | n = 8; | |
5847 | i = 0; | |
5848 | ||
5849 | if (!s) | |
5850 | return -EINVAL; | |
5851 | ||
5852 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
5853 | n = 16; | |
5854 | ||
35ff8b9f | 5855 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
5856 | res = thermal_get_sensor(i, &s->temp[i]); |
5857 | if (res) | |
5858 | return res; | |
5859 | } | |
5860 | ||
5861 | return n; | |
5862 | } | |
f74a27d4 | 5863 | |
9ebd9e83 HMH |
5864 | static void thermal_dump_all_sensors(void) |
5865 | { | |
5866 | int n, i; | |
5867 | struct ibm_thermal_sensors_struct t; | |
5868 | ||
5869 | n = thermal_get_sensors(&t); | |
5870 | if (n <= 0) | |
5871 | return; | |
5872 | ||
0978e012 | 5873 | pr_notice("temperatures (Celsius):"); |
9ebd9e83 HMH |
5874 | |
5875 | for (i = 0; i < n; i++) { | |
5876 | if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) | |
0978e012 | 5877 | pr_cont(" %d", (int)(t.temp[i] / 1000)); |
9ebd9e83 | 5878 | else |
0978e012 | 5879 | pr_cont(" N/A"); |
9ebd9e83 HMH |
5880 | } |
5881 | ||
0978e012 | 5882 | pr_cont("\n"); |
9ebd9e83 HMH |
5883 | } |
5884 | ||
2c37aa4e HMH |
5885 | /* sysfs temp##_input -------------------------------------------------- */ |
5886 | ||
5887 | static ssize_t thermal_temp_input_show(struct device *dev, | |
5888 | struct device_attribute *attr, | |
5889 | char *buf) | |
5890 | { | |
5891 | struct sensor_device_attribute *sensor_attr = | |
5892 | to_sensor_dev_attr(attr); | |
5893 | int idx = sensor_attr->index; | |
5894 | s32 value; | |
5895 | int res; | |
5896 | ||
5897 | res = thermal_get_sensor(idx, &value); | |
5898 | if (res) | |
5899 | return res; | |
9ebd9e83 | 5900 | if (value == TPACPI_THERMAL_SENSOR_NA) |
2c37aa4e HMH |
5901 | return -ENXIO; |
5902 | ||
5903 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
5904 | } | |
5905 | ||
5906 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
5907 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
5908 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
5909 | |
5910 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
5911 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
5912 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
5913 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
5914 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
5915 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
5916 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
5917 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
5918 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
5919 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
5920 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
5921 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
5922 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
5923 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
5924 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
5925 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
5926 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
5927 | }; | |
5928 | ||
5929 | #define THERMAL_ATTRS(X) \ | |
5930 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
5931 | ||
5932 | static struct attribute *thermal_temp_input_attr[] = { | |
5933 | THERMAL_ATTRS(8), | |
5934 | THERMAL_ATTRS(9), | |
5935 | THERMAL_ATTRS(10), | |
5936 | THERMAL_ATTRS(11), | |
5937 | THERMAL_ATTRS(12), | |
5938 | THERMAL_ATTRS(13), | |
5939 | THERMAL_ATTRS(14), | |
5940 | THERMAL_ATTRS(15), | |
5941 | THERMAL_ATTRS(0), | |
5942 | THERMAL_ATTRS(1), | |
5943 | THERMAL_ATTRS(2), | |
5944 | THERMAL_ATTRS(3), | |
5945 | THERMAL_ATTRS(4), | |
5946 | THERMAL_ATTRS(5), | |
5947 | THERMAL_ATTRS(6), | |
5948 | THERMAL_ATTRS(7), | |
5949 | NULL | |
5950 | }; | |
5951 | ||
5952 | static const struct attribute_group thermal_temp_input16_group = { | |
5953 | .attrs = thermal_temp_input_attr | |
5954 | }; | |
5955 | ||
5956 | static const struct attribute_group thermal_temp_input8_group = { | |
5957 | .attrs = &thermal_temp_input_attr[8] | |
5958 | }; | |
5959 | ||
5960 | #undef THERMAL_SENSOR_ATTR_TEMP | |
5961 | #undef THERMAL_ATTRS | |
5962 | ||
5963 | /* --------------------------------------------------------------------- */ | |
5964 | ||
a5763f22 | 5965 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5966 | { |
60eb0b35 HMH |
5967 | u8 t, ta1, ta2; |
5968 | int i; | |
5fba344c | 5969 | int acpi_tmp7; |
2c37aa4e | 5970 | int res; |
5fba344c | 5971 | |
fe08bc4b HMH |
5972 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
5973 | ||
5fba344c | 5974 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 5975 | |
3d6f99ca | 5976 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
5977 | /* |
5978 | * Direct EC access mode: sensors at registers | |
5979 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
5980 | * non-implemented, thermal sensors return 0x80 when | |
5981 | * not available | |
5982 | */ | |
78f81cc4 | 5983 | |
60eb0b35 HMH |
5984 | ta1 = ta2 = 0; |
5985 | for (i = 0; i < 8; i++) { | |
04cc862c | 5986 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
5987 | ta1 |= t; |
5988 | } else { | |
5989 | ta1 = 0; | |
5990 | break; | |
5991 | } | |
04cc862c | 5992 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
5993 | ta2 |= t; |
5994 | } else { | |
5995 | ta1 = 0; | |
5996 | break; | |
5997 | } | |
5998 | } | |
5999 | if (ta1 == 0) { | |
6000 | /* This is sheer paranoia, but we handle it anyway */ | |
6001 | if (acpi_tmp7) { | |
0978e012 | 6002 | pr_err("ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
6003 | "falling back to ACPI TMPx access " |
6004 | "mode\n"); | |
efa27145 | 6005 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 6006 | } else { |
0978e012 | 6007 | pr_err("ThinkPad ACPI EC access misbehaving, " |
60eb0b35 | 6008 | "disabling thermal sensors access\n"); |
efa27145 | 6009 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
6010 | } |
6011 | } else { | |
6012 | thermal_read_mode = | |
6013 | (ta2 != 0) ? | |
efa27145 | 6014 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
6015 | } |
6016 | } else if (acpi_tmp7) { | |
e28393c0 HMH |
6017 | if (tpacpi_is_ibm() && |
6018 | acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { | |
a26f878a | 6019 | /* 600e/x, 770e, 770x */ |
efa27145 | 6020 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a | 6021 | } else { |
e28393c0 | 6022 | /* IBM/LENOVO DSDT EC.TMPx access, max 8 sensors */ |
efa27145 | 6023 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
6024 | } |
6025 | } else { | |
6026 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 6027 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 6028 | } |
78f81cc4 | 6029 | |
fe08bc4b HMH |
6030 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
6031 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
6032 | thermal_read_mode); | |
6033 | ||
35ff8b9f | 6034 | switch (thermal_read_mode) { |
2c37aa4e | 6035 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 6036 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
6037 | &thermal_temp_input16_group); |
6038 | if (res) | |
6039 | return res; | |
6040 | break; | |
6041 | case TPACPI_THERMAL_TPEC_8: | |
6042 | case TPACPI_THERMAL_ACPI_TMP07: | |
6043 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 6044 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
6045 | &thermal_temp_input8_group); |
6046 | if (res) | |
6047 | return res; | |
6048 | break; | |
6049 | case TPACPI_THERMAL_NONE: | |
6050 | default: | |
6051 | return 1; | |
6052 | } | |
6053 | ||
6054 | return 0; | |
6055 | } | |
6056 | ||
6057 | static void thermal_exit(void) | |
6058 | { | |
35ff8b9f | 6059 | switch (thermal_read_mode) { |
2c37aa4e | 6060 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 6061 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
6062 | &thermal_temp_input16_group); |
6063 | break; | |
6064 | case TPACPI_THERMAL_TPEC_8: | |
6065 | case TPACPI_THERMAL_ACPI_TMP07: | |
6066 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 6067 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
f04d5e01 | 6068 | &thermal_temp_input8_group); |
2c37aa4e HMH |
6069 | break; |
6070 | case TPACPI_THERMAL_NONE: | |
6071 | default: | |
6072 | break; | |
6073 | } | |
78f81cc4 BD |
6074 | } |
6075 | ||
887965e6 | 6076 | static int thermal_read(struct seq_file *m) |
a26f878a | 6077 | { |
a26f878a HMH |
6078 | int n, i; |
6079 | struct ibm_thermal_sensors_struct t; | |
6080 | ||
6081 | n = thermal_get_sensors(&t); | |
6082 | if (unlikely(n < 0)) | |
6083 | return n; | |
6084 | ||
887965e6 | 6085 | seq_printf(m, "temperatures:\t"); |
a26f878a HMH |
6086 | |
6087 | if (n > 0) { | |
6088 | for (i = 0; i < (n - 1); i++) | |
887965e6 AD |
6089 | seq_printf(m, "%d ", t.temp[i] / 1000); |
6090 | seq_printf(m, "%d\n", t.temp[i] / 1000); | |
a26f878a | 6091 | } else |
887965e6 | 6092 | seq_printf(m, "not supported\n"); |
78f81cc4 | 6093 | |
887965e6 | 6094 | return 0; |
78f81cc4 BD |
6095 | } |
6096 | ||
a5763f22 HMH |
6097 | static struct ibm_struct thermal_driver_data = { |
6098 | .name = "thermal", | |
6099 | .read = thermal_read, | |
2c37aa4e | 6100 | .exit = thermal_exit, |
a5763f22 HMH |
6101 | }; |
6102 | ||
56b6aeb0 HMH |
6103 | /************************************************************************* |
6104 | * Backlight/brightness subdriver | |
6105 | */ | |
6106 | ||
f74a27d4 HMH |
6107 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
6108 | ||
0e501834 HMH |
6109 | /* |
6110 | * ThinkPads can read brightness from two places: EC HBRV (0x31), or | |
6111 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
6112 | * | |
6113 | * EC HBRV (0x31) has the following layout | |
6114 | * Bit 7: unknown function | |
6115 | * Bit 6: unknown function | |
6116 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
6117 | * Bit 4: must be set to zero to avoid problems | |
6118 | * Bit 3-0: backlight brightness level | |
6119 | * | |
6120 | * brightness_get_raw returns status data in the HBRV layout | |
d7880f10 HMH |
6121 | * |
6122 | * WARNING: The X61 has been verified to use HBRV for something else, so | |
6123 | * this should be used _only_ on IBM ThinkPads, and maybe with some careful | |
6124 | * testing on the very early *60 Lenovo models... | |
0e501834 HMH |
6125 | */ |
6126 | ||
e11aecf1 HMH |
6127 | enum { |
6128 | TP_EC_BACKLIGHT = 0x31, | |
6129 | ||
6130 | /* TP_EC_BACKLIGHT bitmasks */ | |
6131 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
6132 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
6133 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
6134 | }; | |
6135 | ||
0e501834 HMH |
6136 | enum tpacpi_brightness_access_mode { |
6137 | TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */ | |
6138 | TPACPI_BRGHT_MODE_EC, /* EC control */ | |
6139 | TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */ | |
6140 | TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
6141 | TPACPI_BRGHT_MODE_MAX | |
6142 | }; | |
6143 | ||
94954cc6 | 6144 | static struct backlight_device *ibm_backlight_device; |
0e501834 HMH |
6145 | |
6146 | static enum tpacpi_brightness_access_mode brightness_mode = | |
6147 | TPACPI_BRGHT_MODE_MAX; | |
6148 | ||
f74a27d4 HMH |
6149 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
6150 | ||
b21a15f6 | 6151 | static struct mutex brightness_mutex; |
56b6aeb0 | 6152 | |
0e501834 HMH |
6153 | /* NVRAM brightness access, |
6154 | * call with brightness_mutex held! */ | |
6155 | static unsigned int tpacpi_brightness_nvram_get(void) | |
b21a15f6 | 6156 | { |
0e501834 | 6157 | u8 lnvram; |
b21a15f6 | 6158 | |
0e501834 HMH |
6159 | lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) |
6160 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6161 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
77775838 | 6162 | lnvram &= bright_maxlvl; |
0e501834 HMH |
6163 | |
6164 | return lnvram; | |
6165 | } | |
6166 | ||
6167 | static void tpacpi_brightness_checkpoint_nvram(void) | |
6168 | { | |
6169 | u8 lec = 0; | |
6170 | u8 b_nvram; | |
6171 | ||
6172 | if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM) | |
6173 | return; | |
6174 | ||
6175 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6176 | "trying to checkpoint backlight level to NVRAM...\n"); | |
6177 | ||
6178 | if (mutex_lock_killable(&brightness_mutex) < 0) | |
6179 | return; | |
6180 | ||
6181 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6182 | goto unlock; | |
6183 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
6184 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
6185 | ||
6186 | if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6187 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { | |
6188 | /* NVRAM needs update */ | |
6189 | b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << | |
6190 | TP_NVRAM_POS_LEVEL_BRIGHTNESS); | |
6191 | b_nvram |= lec; | |
6192 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); | |
6193 | dbg_printk(TPACPI_DBG_BRGHT, | |
6194 | "updated NVRAM backlight level to %u (0x%02x)\n", | |
6195 | (unsigned int) lec, (unsigned int) b_nvram); | |
6196 | } else | |
6197 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6198 | "NVRAM backlight level already is %u (0x%02x)\n", | |
6199 | (unsigned int) lec, (unsigned int) b_nvram); | |
6200 | ||
6201 | unlock: | |
6202 | mutex_unlock(&brightness_mutex); | |
6203 | } | |
6204 | ||
6205 | ||
6206 | /* call with brightness_mutex held! */ | |
6207 | static int tpacpi_brightness_get_raw(int *status) | |
6208 | { | |
6209 | u8 lec = 0; | |
6210 | ||
6211 | switch (brightness_mode) { | |
6212 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6213 | *status = tpacpi_brightness_nvram_get(); | |
6214 | return 0; | |
6215 | case TPACPI_BRGHT_MODE_EC: | |
6216 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6217 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
2d5e94d7 | 6218 | return -EIO; |
0e501834 HMH |
6219 | *status = lec; |
6220 | return 0; | |
6221 | default: | |
6222 | return -ENXIO; | |
b21a15f6 | 6223 | } |
0e501834 HMH |
6224 | } |
6225 | ||
6226 | /* call with brightness_mutex held! */ | |
6227 | /* do NOT call with illegal backlight level value */ | |
6228 | static int tpacpi_brightness_set_ec(unsigned int value) | |
6229 | { | |
6230 | u8 lec = 0; | |
6231 | ||
6232 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6233 | return -EIO; | |
6234 | ||
6235 | if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT, | |
6236 | (lec & TP_EC_BACKLIGHT_CMDMSK) | | |
6237 | (value & TP_EC_BACKLIGHT_LVLMSK)))) | |
6238 | return -EIO; | |
6239 | ||
6240 | return 0; | |
6241 | } | |
6242 | ||
6243 | /* call with brightness_mutex held! */ | |
6244 | static int tpacpi_brightness_set_ucmsstep(unsigned int value) | |
6245 | { | |
6246 | int cmos_cmd, inc; | |
6247 | unsigned int current_value, i; | |
6248 | ||
6249 | current_value = tpacpi_brightness_nvram_get(); | |
6250 | ||
6251 | if (value == current_value) | |
6252 | return 0; | |
6253 | ||
6254 | cmos_cmd = (value > current_value) ? | |
6255 | TP_CMOS_BRIGHTNESS_UP : | |
6256 | TP_CMOS_BRIGHTNESS_DOWN; | |
6257 | inc = (value > current_value) ? 1 : -1; | |
6258 | ||
6259 | for (i = current_value; i != value; i += inc) | |
6260 | if (issue_thinkpad_cmos_command(cmos_cmd)) | |
6261 | return -EIO; | |
b21a15f6 | 6262 | |
e11aecf1 | 6263 | return 0; |
b21a15f6 HMH |
6264 | } |
6265 | ||
6266 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
0e501834 | 6267 | static int brightness_set(unsigned int value) |
b21a15f6 | 6268 | { |
0e501834 | 6269 | int res; |
b21a15f6 | 6270 | |
bd3c7b9e | 6271 | if (value > bright_maxlvl) |
b21a15f6 HMH |
6272 | return -EINVAL; |
6273 | ||
0e501834 HMH |
6274 | vdbg_printk(TPACPI_DBG_BRGHT, |
6275 | "set backlight level to %d\n", value); | |
6276 | ||
7646ea88 | 6277 | res = mutex_lock_killable(&brightness_mutex); |
b21a15f6 HMH |
6278 | if (res < 0) |
6279 | return res; | |
6280 | ||
0e501834 HMH |
6281 | switch (brightness_mode) { |
6282 | case TPACPI_BRGHT_MODE_EC: | |
6283 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6284 | res = tpacpi_brightness_set_ec(value); | |
6285 | break; | |
6286 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6287 | res = tpacpi_brightness_set_ucmsstep(value); | |
6288 | break; | |
6289 | default: | |
6290 | res = -ENXIO; | |
b21a15f6 HMH |
6291 | } |
6292 | ||
b21a15f6 HMH |
6293 | mutex_unlock(&brightness_mutex); |
6294 | return res; | |
6295 | } | |
6296 | ||
6297 | /* sysfs backlight class ----------------------------------------------- */ | |
6298 | ||
6299 | static int brightness_update_status(struct backlight_device *bd) | |
6300 | { | |
0e501834 | 6301 | unsigned int level = |
b21a15f6 HMH |
6302 | (bd->props.fb_blank == FB_BLANK_UNBLANK && |
6303 | bd->props.power == FB_BLANK_UNBLANK) ? | |
0e501834 HMH |
6304 | bd->props.brightness : 0; |
6305 | ||
6306 | dbg_printk(TPACPI_DBG_BRGHT, | |
6307 | "backlight: attempt to set level to %d\n", | |
6308 | level); | |
6309 | ||
6310 | /* it is the backlight class's job (caller) to handle | |
6311 | * EINTR and other errors properly */ | |
6312 | return brightness_set(level); | |
b21a15f6 HMH |
6313 | } |
6314 | ||
e11aecf1 | 6315 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 6316 | { |
e11aecf1 | 6317 | int status, res; |
a3f104c0 | 6318 | |
0e501834 | 6319 | res = mutex_lock_killable(&brightness_mutex); |
e11aecf1 | 6320 | if (res < 0) |
0e501834 HMH |
6321 | return 0; |
6322 | ||
6323 | res = tpacpi_brightness_get_raw(&status); | |
6324 | ||
6325 | mutex_unlock(&brightness_mutex); | |
6326 | ||
6327 | if (res < 0) | |
6328 | return 0; | |
e11e211a | 6329 | |
e11aecf1 | 6330 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
6331 | } |
6332 | ||
347a2686 HMH |
6333 | static void tpacpi_brightness_notify_change(void) |
6334 | { | |
6335 | backlight_force_update(ibm_backlight_device, | |
6336 | BACKLIGHT_UPDATE_HOTKEY); | |
6337 | } | |
6338 | ||
acc2472e | 6339 | static const struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
6340 | .get_brightness = brightness_get, |
6341 | .update_status = brightness_update_status, | |
56b6aeb0 | 6342 | }; |
e11e211a | 6343 | |
b21a15f6 | 6344 | /* --------------------------------------------------------------------- */ |
e11e211a | 6345 | |
122f2672 HMH |
6346 | /* |
6347 | * Call _BCL method of video device. On some ThinkPads this will | |
6348 | * switch the firmware to the ACPI brightness control mode. | |
6349 | */ | |
6350 | ||
77775838 HMH |
6351 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
6352 | { | |
6353 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
6354 | union acpi_object *obj; | |
46445b6b | 6355 | struct acpi_device *device, *child; |
77775838 HMH |
6356 | int rc; |
6357 | ||
46445b6b AL |
6358 | if (acpi_bus_get_device(handle, &device)) |
6359 | return 0; | |
6360 | ||
6361 | rc = 0; | |
6362 | list_for_each_entry(child, &device->children, node) { | |
6363 | acpi_status status = acpi_evaluate_object(child->handle, "_BCL", | |
6364 | NULL, &buffer); | |
6365 | if (ACPI_FAILURE(status)) | |
6366 | continue; | |
6367 | ||
77775838 HMH |
6368 | obj = (union acpi_object *)buffer.pointer; |
6369 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
0978e012 | 6370 | pr_err("Unknown _BCL data, please report this to %s\n", |
46445b6b | 6371 | TPACPI_MAIL); |
77775838 HMH |
6372 | rc = 0; |
6373 | } else { | |
6374 | rc = obj->package.count; | |
6375 | } | |
46445b6b | 6376 | break; |
77775838 HMH |
6377 | } |
6378 | ||
6379 | kfree(buffer.pointer); | |
6380 | return rc; | |
6381 | } | |
6382 | ||
77775838 HMH |
6383 | |
6384 | /* | |
6385 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
6386 | */ | |
6387 | static unsigned int __init tpacpi_check_std_acpi_brightness_support(void) | |
6388 | { | |
122f2672 | 6389 | acpi_handle video_device; |
77775838 | 6390 | int bcl_levels = 0; |
77775838 | 6391 | |
46445b6b | 6392 | tpacpi_acpi_handle_locate("video", NULL, &video_device); |
122f2672 HMH |
6393 | if (video_device) |
6394 | bcl_levels = tpacpi_query_bcl_levels(video_device); | |
77775838 | 6395 | |
122f2672 | 6396 | tp_features.bright_acpimode = (bcl_levels > 0); |
77775838 | 6397 | |
122f2672 | 6398 | return (bcl_levels > 2) ? (bcl_levels - 2) : 0; |
77775838 HMH |
6399 | } |
6400 | ||
59fe4fe3 HMH |
6401 | /* |
6402 | * These are only useful for models that have only one possibility | |
6403 | * of GPU. If the BIOS model handles both ATI and Intel, don't use | |
6404 | * these quirks. | |
6405 | */ | |
6406 | #define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */ | |
6407 | #define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */ | |
6408 | #define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */ | |
6409 | ||
6410 | static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { | |
6411 | /* Models with ATI GPUs known to require ECNVRAM mode */ | |
6412 | TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ | |
6413 | ||
6da25bf5 | 6414 | /* Models with ATI GPUs that can use ECNVRAM */ |
7d1894d8 | 6415 | TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), /* R50,51 T40-42 */ |
59fe4fe3 | 6416 | TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
7d1894d8 | 6417 | TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_EC), /* R52 */ |
59fe4fe3 HMH |
6418 | TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6419 | ||
6da25bf5 | 6420 | /* Models with Intel Extreme Graphics 2 */ |
7d1894d8 | 6421 | TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), /* X40 */ |
a9f8eacc HMH |
6422 | TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6423 | TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
59fe4fe3 HMH |
6424 | |
6425 | /* Models with Intel GMA900 */ | |
6426 | TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ | |
6427 | TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */ | |
6428 | TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */ | |
6429 | }; | |
6430 | ||
77775838 HMH |
6431 | /* |
6432 | * Returns < 0 for error, otherwise sets tp_features.bright_* | |
6433 | * and bright_maxlvl. | |
6434 | */ | |
6435 | static void __init tpacpi_detect_brightness_capabilities(void) | |
6436 | { | |
6437 | unsigned int b; | |
6438 | ||
6439 | vdbg_printk(TPACPI_DBG_INIT, | |
6440 | "detecting firmware brightness interface capabilities\n"); | |
6441 | ||
6442 | /* we could run a quirks check here (same table used by | |
6443 | * brightness_init) if needed */ | |
6444 | ||
6445 | /* | |
6446 | * We always attempt to detect acpi support, so as to switch | |
6447 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
6448 | * going to publish a backlight interface | |
6449 | */ | |
6450 | b = tpacpi_check_std_acpi_brightness_support(); | |
6451 | switch (b) { | |
6452 | case 16: | |
6453 | bright_maxlvl = 15; | |
0978e012 | 6454 | pr_info("detected a 16-level brightness capable ThinkPad\n"); |
77775838 HMH |
6455 | break; |
6456 | case 8: | |
6457 | case 0: | |
6458 | bright_maxlvl = 7; | |
0978e012 | 6459 | pr_info("detected a 8-level brightness capable ThinkPad\n"); |
77775838 HMH |
6460 | break; |
6461 | default: | |
d618651b | 6462 | pr_info("Unsupported brightness interface\n"); |
77775838 HMH |
6463 | tp_features.bright_unkfw = 1; |
6464 | bright_maxlvl = b - 1; | |
6465 | } | |
6466 | } | |
6467 | ||
a5763f22 | 6468 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 6469 | { |
a19a6ee6 | 6470 | struct backlight_properties props; |
56b6aeb0 | 6471 | int b; |
59fe4fe3 | 6472 | unsigned long quirks; |
56b6aeb0 | 6473 | |
fe08bc4b HMH |
6474 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
6475 | ||
f432255e HMH |
6476 | mutex_init(&brightness_mutex); |
6477 | ||
59fe4fe3 HMH |
6478 | quirks = tpacpi_check_quirks(brightness_quirk_table, |
6479 | ARRAY_SIZE(brightness_quirk_table)); | |
6480 | ||
77775838 HMH |
6481 | /* tpacpi_detect_brightness_capabilities() must have run already */ |
6482 | ||
6483 | /* if it is unknown, we don't handle it: it wouldn't be safe */ | |
6484 | if (tp_features.bright_unkfw) | |
6485 | return 1; | |
2dba1b5d | 6486 | |
b5972796 | 6487 | if (!brightness_enable) { |
0e501834 | 6488 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
b5972796 HMH |
6489 | "brightness support disabled by " |
6490 | "module parameter\n"); | |
6491 | return 1; | |
6492 | } | |
6493 | ||
b33c6ce5 | 6494 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { |
217f0963 | 6495 | if (brightness_enable > 1) { |
0978e012 JP |
6496 | pr_info("Standard ACPI backlight interface " |
6497 | "available, not loading native one\n"); | |
217f0963 HMH |
6498 | return 1; |
6499 | } else if (brightness_enable == 1) { | |
0978e012 | 6500 | pr_warn("Cannot enable backlight brightness support, " |
217f0963 | 6501 | "ACPI is already handling it. Refer to the " |
0978e012 | 6502 | "acpi_backlight kernel parameter.\n"); |
217f0963 HMH |
6503 | return 1; |
6504 | } | |
6505 | } else if (tp_features.bright_acpimode && brightness_enable > 1) { | |
0978e012 JP |
6506 | pr_notice("Standard ACPI backlight interface not " |
6507 | "available, thinkpad_acpi native " | |
6508 | "brightness control enabled\n"); | |
217f0963 HMH |
6509 | } |
6510 | ||
0e501834 HMH |
6511 | /* |
6512 | * Check for module parameter bogosity, note that we | |
6513 | * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be | |
6514 | * able to detect "unspecified" | |
6515 | */ | |
6516 | if (brightness_mode > TPACPI_BRGHT_MODE_MAX) | |
6517 | return -EINVAL; | |
24d3b774 | 6518 | |
0e501834 HMH |
6519 | /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ |
6520 | if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || | |
6521 | brightness_mode == TPACPI_BRGHT_MODE_MAX) { | |
59fe4fe3 HMH |
6522 | if (quirks & TPACPI_BRGHT_Q_EC) |
6523 | brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; | |
6524 | else | |
0e501834 | 6525 | brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; |
24d3b774 | 6526 | |
0e501834 | 6527 | dbg_printk(TPACPI_DBG_BRGHT, |
59fe4fe3 | 6528 | "driver auto-selected brightness_mode=%d\n", |
0e501834 HMH |
6529 | brightness_mode); |
6530 | } | |
24d3b774 | 6531 | |
d7880f10 | 6532 | /* Safety */ |
e28393c0 | 6533 | if (!tpacpi_is_ibm() && |
d7880f10 HMH |
6534 | (brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM || |
6535 | brightness_mode == TPACPI_BRGHT_MODE_EC)) | |
6536 | return -EINVAL; | |
6537 | ||
0e501834 | 6538 | if (tpacpi_brightness_get_raw(&b) < 0) |
24d3b774 | 6539 | return 1; |
56b6aeb0 | 6540 | |
a19a6ee6 | 6541 | memset(&props, 0, sizeof(struct backlight_properties)); |
bb7ca747 | 6542 | props.type = BACKLIGHT_PLATFORM; |
77775838 HMH |
6543 | props.max_brightness = bright_maxlvl; |
6544 | props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; | |
a19a6ee6 MG |
6545 | ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME, |
6546 | NULL, NULL, | |
6547 | &ibm_backlight_data, | |
6548 | &props); | |
56b6aeb0 | 6549 | if (IS_ERR(ibm_backlight_device)) { |
435c47e2 HMH |
6550 | int rc = PTR_ERR(ibm_backlight_device); |
6551 | ibm_backlight_device = NULL; | |
0978e012 | 6552 | pr_err("Could not register backlight device\n"); |
435c47e2 | 6553 | return rc; |
56b6aeb0 | 6554 | } |
0e501834 HMH |
6555 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6556 | "brightness is supported\n"); | |
56b6aeb0 | 6557 | |
59fe4fe3 | 6558 | if (quirks & TPACPI_BRGHT_Q_ASK) { |
0978e012 JP |
6559 | pr_notice("brightness: will use unverified default: " |
6560 | "brightness_mode=%d\n", brightness_mode); | |
6561 | pr_notice("brightness: please report to %s whether it works well " | |
6562 | "or not on your ThinkPad\n", TPACPI_MAIL); | |
59fe4fe3 HMH |
6563 | } |
6564 | ||
7d9745cf HMH |
6565 | /* Added by mistake in early 2007. Probably useless, but it could |
6566 | * be working around some unknown firmware problem where the value | |
6567 | * read at startup doesn't match the real hardware state... so leave | |
6568 | * it in place just in case */ | |
56b6aeb0 HMH |
6569 | backlight_update_status(ibm_backlight_device); |
6570 | ||
347a2686 HMH |
6571 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
6572 | "brightness: registering brightness hotkeys " | |
6573 | "as change notification\n"); | |
6574 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
6575 | | TP_ACPI_HKEY_BRGHTUP_MASK | |
3098064d | 6576 | | TP_ACPI_HKEY_BRGHTDWN_MASK); |
56b6aeb0 HMH |
6577 | return 0; |
6578 | } | |
6579 | ||
fd3c3a42 | 6580 | static void brightness_suspend(void) |
0e501834 HMH |
6581 | { |
6582 | tpacpi_brightness_checkpoint_nvram(); | |
6583 | } | |
6584 | ||
6585 | static void brightness_shutdown(void) | |
6586 | { | |
6587 | tpacpi_brightness_checkpoint_nvram(); | |
6588 | } | |
6589 | ||
56b6aeb0 HMH |
6590 | static void brightness_exit(void) |
6591 | { | |
6592 | if (ibm_backlight_device) { | |
0e501834 | 6593 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT, |
fe08bc4b | 6594 | "calling backlight_device_unregister()\n"); |
56b6aeb0 | 6595 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 | 6596 | } |
0e501834 HMH |
6597 | |
6598 | tpacpi_brightness_checkpoint_nvram(); | |
56b6aeb0 HMH |
6599 | } |
6600 | ||
887965e6 | 6601 | static int brightness_read(struct seq_file *m) |
56b6aeb0 | 6602 | { |
56b6aeb0 HMH |
6603 | int level; |
6604 | ||
35ff8b9f HMH |
6605 | level = brightness_get(NULL); |
6606 | if (level < 0) { | |
887965e6 | 6607 | seq_printf(m, "level:\t\tunreadable\n"); |
56b6aeb0 | 6608 | } else { |
887965e6 AD |
6609 | seq_printf(m, "level:\t\t%d\n", level); |
6610 | seq_printf(m, "commands:\tup, down\n"); | |
77775838 HMH |
6611 | seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", |
6612 | bright_maxlvl); | |
56b6aeb0 HMH |
6613 | } |
6614 | ||
887965e6 | 6615 | return 0; |
56b6aeb0 HMH |
6616 | } |
6617 | ||
8acb0250 HM |
6618 | static int brightness_write(char *buf) |
6619 | { | |
6620 | int level; | |
4273af8d | 6621 | int rc; |
1da177e4 | 6622 | char *cmd; |
1da177e4 | 6623 | |
4273af8d HMH |
6624 | level = brightness_get(NULL); |
6625 | if (level < 0) | |
6626 | return level; | |
78f81cc4 | 6627 | |
4273af8d | 6628 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 6629 | if (strlencmp(cmd, "up") == 0) { |
77775838 | 6630 | if (level < bright_maxlvl) |
4273af8d | 6631 | level++; |
78f81cc4 | 6632 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
6633 | if (level > 0) |
6634 | level--; | |
6635 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
77775838 | 6636 | level >= 0 && level <= bright_maxlvl) { |
4273af8d | 6637 | /* new level set */ |
78f81cc4 BD |
6638 | } else |
6639 | return -EINVAL; | |
78f81cc4 BD |
6640 | } |
6641 | ||
0e501834 HMH |
6642 | tpacpi_disclose_usertask("procfs brightness", |
6643 | "set level to %d\n", level); | |
6644 | ||
4273af8d HMH |
6645 | /* |
6646 | * Now we know what the final level should be, so we try to set it. | |
6647 | * Doing it this way makes the syscall restartable in case of EINTR | |
6648 | */ | |
6649 | rc = brightness_set(level); | |
347a2686 HMH |
6650 | if (!rc && ibm_backlight_device) |
6651 | backlight_force_update(ibm_backlight_device, | |
6652 | BACKLIGHT_UPDATE_SYSFS); | |
72a979f0 | 6653 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
6654 | } |
6655 | ||
a5763f22 HMH |
6656 | static struct ibm_struct brightness_driver_data = { |
6657 | .name = "brightness", | |
6658 | .read = brightness_read, | |
6659 | .write = brightness_write, | |
6660 | .exit = brightness_exit, | |
0e501834 HMH |
6661 | .suspend = brightness_suspend, |
6662 | .shutdown = brightness_shutdown, | |
a5763f22 HMH |
6663 | }; |
6664 | ||
56b6aeb0 HMH |
6665 | /************************************************************************* |
6666 | * Volume subdriver | |
6667 | */ | |
fb87a811 | 6668 | |
329e4e18 HMH |
6669 | /* |
6670 | * IBM ThinkPads have a simple volume controller with MUTE gating. | |
6671 | * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. | |
6672 | * | |
6673 | * Since the *61 series (and probably also the later *60 series), Lenovo | |
6674 | * ThinkPads only implement the MUTE gate. | |
6675 | * | |
6676 | * EC register 0x30 | |
6677 | * Bit 6: MUTE (1 mutes sound) | |
6678 | * Bit 3-0: Volume | |
6679 | * Other bits should be zero as far as we know. | |
6680 | * | |
6681 | * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and | |
6682 | * bits 3-0 (volume). Other bits in NVRAM may have other functions, | |
6683 | * such as bit 7 which is used to detect repeated presses of MUTE, | |
6684 | * and we leave them unchanged. | |
9a417ec0 AL |
6685 | * |
6686 | * On newer Lenovo ThinkPads, the EC can automatically change the volume | |
6687 | * in response to user input. Unfortunately, this rarely works well. | |
6688 | * The laptop changes the state of its internal MUTE gate and, on some | |
6689 | * models, sends KEY_MUTE, causing any user code that responds to the | |
6690 | * mute button to get confused. The hardware MUTE gate is also | |
6691 | * unnecessary, since user code can handle the mute button without | |
6692 | * kernel or EC help. | |
6693 | * | |
6694 | * To avoid confusing userspace, we simply disable all EC-based mute | |
6695 | * and volume controls when possible. | |
329e4e18 HMH |
6696 | */ |
6697 | ||
ff850c33 HMH |
6698 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
6699 | ||
0d204c34 HMH |
6700 | #define TPACPI_ALSA_DRVNAME "ThinkPad EC" |
6701 | #define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" | |
6702 | #define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME | |
6703 | ||
cab66613 TI |
6704 | #if SNDRV_CARDS <= 32 |
6705 | #define DEFAULT_ALSA_IDX ~((1 << (SNDRV_CARDS - 3)) - 1) | |
6706 | #else | |
6707 | #define DEFAULT_ALSA_IDX ~((1 << (32 - 3)) - 1) | |
6708 | #endif | |
6709 | static int alsa_index = DEFAULT_ALSA_IDX; /* last three slots */ | |
0d204c34 | 6710 | static char *alsa_id = "ThinkPadEC"; |
90ab5ee9 | 6711 | static bool alsa_enable = SNDRV_DEFAULT_ENABLE1; |
0d204c34 HMH |
6712 | |
6713 | struct tpacpi_alsa_data { | |
6714 | struct snd_card *card; | |
6715 | struct snd_ctl_elem_id *ctl_mute_id; | |
6716 | struct snd_ctl_elem_id *ctl_vol_id; | |
6717 | }; | |
6718 | ||
6719 | static struct snd_card *alsa_card; | |
6720 | ||
329e4e18 HMH |
6721 | enum { |
6722 | TP_EC_AUDIO = 0x30, | |
6723 | ||
6724 | /* TP_EC_AUDIO bits */ | |
6725 | TP_EC_AUDIO_MUTESW = 6, | |
6726 | ||
6727 | /* TP_EC_AUDIO bitmasks */ | |
6728 | TP_EC_AUDIO_LVL_MSK = 0x0F, | |
6729 | TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), | |
6730 | ||
6731 | /* Maximum volume */ | |
6732 | TP_EC_VOLUME_MAX = 14, | |
6733 | }; | |
6734 | ||
6735 | enum tpacpi_volume_access_mode { | |
6736 | TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ | |
6737 | TPACPI_VOL_MODE_EC, /* Pure EC control */ | |
6738 | TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ | |
6739 | TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
6740 | TPACPI_VOL_MODE_MAX | |
6741 | }; | |
6742 | ||
a112ceee HMH |
6743 | enum tpacpi_volume_capabilities { |
6744 | TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ | |
6745 | TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ | |
6746 | TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ | |
6747 | TPACPI_VOL_CAP_MAX | |
6748 | }; | |
6749 | ||
9a417ec0 AL |
6750 | enum tpacpi_mute_btn_mode { |
6751 | TP_EC_MUTE_BTN_LATCH = 0, /* Mute mutes; up/down unmutes */ | |
6752 | /* We don't know what mode 1 is. */ | |
6753 | TP_EC_MUTE_BTN_NONE = 2, /* Mute and up/down are just keys */ | |
6754 | TP_EC_MUTE_BTN_TOGGLE = 3, /* Mute toggles; up/down unmutes */ | |
6755 | }; | |
6756 | ||
329e4e18 HMH |
6757 | static enum tpacpi_volume_access_mode volume_mode = |
6758 | TPACPI_VOL_MODE_MAX; | |
6759 | ||
a112ceee | 6760 | static enum tpacpi_volume_capabilities volume_capabilities; |
90ab5ee9 | 6761 | static bool volume_control_allowed; |
9a417ec0 AL |
6762 | static bool software_mute_requested = true; |
6763 | static bool software_mute_active; | |
6764 | static int software_mute_orig_mode; | |
f74a27d4 | 6765 | |
329e4e18 HMH |
6766 | /* |
6767 | * Used to syncronize writers to TP_EC_AUDIO and | |
6768 | * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write | |
6769 | */ | |
6770 | static struct mutex volume_mutex; | |
6771 | ||
6772 | static void tpacpi_volume_checkpoint_nvram(void) | |
78f81cc4 | 6773 | { |
329e4e18 HMH |
6774 | u8 lec = 0; |
6775 | u8 b_nvram; | |
a112ceee | 6776 | u8 ec_mask; |
329e4e18 HMH |
6777 | |
6778 | if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) | |
6779 | return; | |
c7ac6291 HMH |
6780 | if (!volume_control_allowed) |
6781 | return; | |
9a417ec0 AL |
6782 | if (software_mute_active) |
6783 | return; | |
329e4e18 HMH |
6784 | |
6785 | vdbg_printk(TPACPI_DBG_MIXER, | |
6786 | "trying to checkpoint mixer state to NVRAM...\n"); | |
78f81cc4 | 6787 | |
a112ceee HMH |
6788 | if (tp_features.mixer_no_level_control) |
6789 | ec_mask = TP_EC_AUDIO_MUTESW_MSK; | |
6790 | else | |
6791 | ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; | |
6792 | ||
329e4e18 HMH |
6793 | if (mutex_lock_killable(&volume_mutex) < 0) |
6794 | return; | |
6795 | ||
6796 | if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) | |
6797 | goto unlock; | |
6798 | lec &= ec_mask; | |
6799 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
6800 | ||
6801 | if (lec != (b_nvram & ec_mask)) { | |
6802 | /* NVRAM needs update */ | |
6803 | b_nvram &= ~ec_mask; | |
6804 | b_nvram |= lec; | |
6805 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); | |
6806 | dbg_printk(TPACPI_DBG_MIXER, | |
6807 | "updated NVRAM mixer status to 0x%02x (0x%02x)\n", | |
6808 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 | 6809 | } else { |
329e4e18 HMH |
6810 | vdbg_printk(TPACPI_DBG_MIXER, |
6811 | "NVRAM mixer status already is 0x%02x (0x%02x)\n", | |
6812 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 BD |
6813 | } |
6814 | ||
329e4e18 HMH |
6815 | unlock: |
6816 | mutex_unlock(&volume_mutex); | |
78f81cc4 BD |
6817 | } |
6818 | ||
329e4e18 | 6819 | static int volume_get_status_ec(u8 *status) |
78f81cc4 | 6820 | { |
329e4e18 | 6821 | u8 s; |
78f81cc4 | 6822 | |
329e4e18 HMH |
6823 | if (!acpi_ec_read(TP_EC_AUDIO, &s)) |
6824 | return -EIO; | |
78f81cc4 | 6825 | |
329e4e18 | 6826 | *status = s; |
1da177e4 | 6827 | |
329e4e18 | 6828 | dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); |
35ff8b9f | 6829 | |
329e4e18 HMH |
6830 | return 0; |
6831 | } | |
78f81cc4 | 6832 | |
329e4e18 HMH |
6833 | static int volume_get_status(u8 *status) |
6834 | { | |
6835 | return volume_get_status_ec(status); | |
6836 | } | |
78f81cc4 | 6837 | |
329e4e18 HMH |
6838 | static int volume_set_status_ec(const u8 status) |
6839 | { | |
6840 | if (!acpi_ec_write(TP_EC_AUDIO, status)) | |
6841 | return -EIO; | |
78f81cc4 | 6842 | |
329e4e18 HMH |
6843 | dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); |
6844 | ||
9a417ec0 AL |
6845 | /* |
6846 | * On X200s, and possibly on others, it can take a while for | |
6847 | * reads to become correct. | |
6848 | */ | |
6849 | msleep(1); | |
6850 | ||
329e4e18 HMH |
6851 | return 0; |
6852 | } | |
6853 | ||
6854 | static int volume_set_status(const u8 status) | |
6855 | { | |
6856 | return volume_set_status_ec(status); | |
6857 | } | |
6858 | ||
88cc8377 HMH |
6859 | /* returns < 0 on error, 0 on no change, 1 on change */ |
6860 | static int __volume_set_mute_ec(const bool mute) | |
329e4e18 HMH |
6861 | { |
6862 | int rc; | |
6863 | u8 s, n; | |
6864 | ||
6865 | if (mutex_lock_killable(&volume_mutex) < 0) | |
6866 | return -EINTR; | |
6867 | ||
6868 | rc = volume_get_status_ec(&s); | |
6869 | if (rc) | |
6870 | goto unlock; | |
6871 | ||
6872 | n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : | |
6873 | s & ~TP_EC_AUDIO_MUTESW_MSK; | |
6874 | ||
88cc8377 | 6875 | if (n != s) { |
329e4e18 | 6876 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
6877 | if (!rc) |
6878 | rc = 1; | |
6879 | } | |
329e4e18 HMH |
6880 | |
6881 | unlock: | |
6882 | mutex_unlock(&volume_mutex); | |
6883 | return rc; | |
6884 | } | |
6885 | ||
88cc8377 HMH |
6886 | static int volume_alsa_set_mute(const bool mute) |
6887 | { | |
6888 | dbg_printk(TPACPI_DBG_MIXER, "ALSA: trying to %smute\n", | |
6889 | (mute) ? "" : "un"); | |
6890 | return __volume_set_mute_ec(mute); | |
6891 | } | |
6892 | ||
329e4e18 HMH |
6893 | static int volume_set_mute(const bool mute) |
6894 | { | |
88cc8377 HMH |
6895 | int rc; |
6896 | ||
329e4e18 HMH |
6897 | dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", |
6898 | (mute) ? "" : "un"); | |
88cc8377 HMH |
6899 | |
6900 | rc = __volume_set_mute_ec(mute); | |
6901 | return (rc < 0) ? rc : 0; | |
329e4e18 HMH |
6902 | } |
6903 | ||
88cc8377 HMH |
6904 | /* returns < 0 on error, 0 on no change, 1 on change */ |
6905 | static int __volume_set_volume_ec(const u8 vol) | |
329e4e18 HMH |
6906 | { |
6907 | int rc; | |
6908 | u8 s, n; | |
6909 | ||
6910 | if (vol > TP_EC_VOLUME_MAX) | |
6911 | return -EINVAL; | |
6912 | ||
6913 | if (mutex_lock_killable(&volume_mutex) < 0) | |
6914 | return -EINTR; | |
6915 | ||
6916 | rc = volume_get_status_ec(&s); | |
6917 | if (rc) | |
6918 | goto unlock; | |
6919 | ||
6920 | n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; | |
6921 | ||
88cc8377 | 6922 | if (n != s) { |
329e4e18 | 6923 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
6924 | if (!rc) |
6925 | rc = 1; | |
6926 | } | |
329e4e18 HMH |
6927 | |
6928 | unlock: | |
6929 | mutex_unlock(&volume_mutex); | |
6930 | return rc; | |
6931 | } | |
6932 | ||
9a417ec0 AL |
6933 | static int volume_set_software_mute(bool startup) |
6934 | { | |
6935 | int result; | |
6936 | ||
6937 | if (!tpacpi_is_lenovo()) | |
6938 | return -ENODEV; | |
6939 | ||
6940 | if (startup) { | |
6941 | if (!acpi_evalf(ec_handle, &software_mute_orig_mode, | |
6942 | "HAUM", "qd")) | |
6943 | return -EIO; | |
6944 | ||
6945 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
6946 | "Initial HAUM setting was %d\n", | |
6947 | software_mute_orig_mode); | |
6948 | } | |
6949 | ||
6950 | if (!acpi_evalf(ec_handle, &result, "SAUM", "qdd", | |
6951 | (int)TP_EC_MUTE_BTN_NONE)) | |
6952 | return -EIO; | |
6953 | ||
6954 | if (result != TP_EC_MUTE_BTN_NONE) | |
6955 | pr_warn("Unexpected SAUM result %d\n", | |
6956 | result); | |
6957 | ||
6958 | /* | |
6959 | * In software mute mode, the standard codec controls take | |
6960 | * precendence, so we unmute the ThinkPad HW switch at | |
6961 | * startup. Just on case there are SAUM-capable ThinkPads | |
6962 | * with level controls, set max HW volume as well. | |
6963 | */ | |
6964 | if (tp_features.mixer_no_level_control) | |
6965 | result = volume_set_mute(false); | |
6966 | else | |
6967 | result = volume_set_status(TP_EC_VOLUME_MAX); | |
6968 | ||
6969 | if (result != 0) | |
6970 | pr_warn("Failed to unmute the HW mute switch\n"); | |
6971 | ||
6972 | return 0; | |
6973 | } | |
6974 | ||
6975 | static void volume_exit_software_mute(void) | |
6976 | { | |
6977 | int r; | |
6978 | ||
6979 | if (!acpi_evalf(ec_handle, &r, "SAUM", "qdd", software_mute_orig_mode) | |
6980 | || r != software_mute_orig_mode) | |
6981 | pr_warn("Failed to restore mute mode\n"); | |
6982 | } | |
6983 | ||
88cc8377 | 6984 | static int volume_alsa_set_volume(const u8 vol) |
329e4e18 HMH |
6985 | { |
6986 | dbg_printk(TPACPI_DBG_MIXER, | |
88cc8377 HMH |
6987 | "ALSA: trying to set volume level to %hu\n", vol); |
6988 | return __volume_set_volume_ec(vol); | |
329e4e18 HMH |
6989 | } |
6990 | ||
0d204c34 HMH |
6991 | static void volume_alsa_notify_change(void) |
6992 | { | |
6993 | struct tpacpi_alsa_data *d; | |
6994 | ||
6995 | if (alsa_card && alsa_card->private_data) { | |
6996 | d = alsa_card->private_data; | |
6997 | if (d->ctl_mute_id) | |
6998 | snd_ctl_notify(alsa_card, | |
6999 | SNDRV_CTL_EVENT_MASK_VALUE, | |
7000 | d->ctl_mute_id); | |
7001 | if (d->ctl_vol_id) | |
7002 | snd_ctl_notify(alsa_card, | |
7003 | SNDRV_CTL_EVENT_MASK_VALUE, | |
7004 | d->ctl_vol_id); | |
7005 | } | |
7006 | } | |
7007 | ||
7008 | static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol, | |
7009 | struct snd_ctl_elem_info *uinfo) | |
7010 | { | |
7011 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
7012 | uinfo->count = 1; | |
7013 | uinfo->value.integer.min = 0; | |
7014 | uinfo->value.integer.max = TP_EC_VOLUME_MAX; | |
7015 | return 0; | |
7016 | } | |
7017 | ||
7018 | static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol, | |
7019 | struct snd_ctl_elem_value *ucontrol) | |
7020 | { | |
7021 | u8 s; | |
7022 | int rc; | |
7023 | ||
7024 | rc = volume_get_status(&s); | |
7025 | if (rc < 0) | |
7026 | return rc; | |
7027 | ||
7028 | ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK; | |
7029 | return 0; | |
7030 | } | |
7031 | ||
7032 | static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol, | |
7033 | struct snd_ctl_elem_value *ucontrol) | |
7034 | { | |
38e11cde HMH |
7035 | tpacpi_disclose_usertask("ALSA", "set volume to %ld\n", |
7036 | ucontrol->value.integer.value[0]); | |
88cc8377 | 7037 | return volume_alsa_set_volume(ucontrol->value.integer.value[0]); |
0d204c34 HMH |
7038 | } |
7039 | ||
7040 | #define volume_alsa_mute_info snd_ctl_boolean_mono_info | |
7041 | ||
7042 | static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol, | |
7043 | struct snd_ctl_elem_value *ucontrol) | |
7044 | { | |
7045 | u8 s; | |
7046 | int rc; | |
7047 | ||
7048 | rc = volume_get_status(&s); | |
7049 | if (rc < 0) | |
7050 | return rc; | |
7051 | ||
7052 | ucontrol->value.integer.value[0] = | |
7053 | (s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1; | |
7054 | return 0; | |
7055 | } | |
7056 | ||
7057 | static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol, | |
7058 | struct snd_ctl_elem_value *ucontrol) | |
7059 | { | |
38e11cde HMH |
7060 | tpacpi_disclose_usertask("ALSA", "%smute\n", |
7061 | ucontrol->value.integer.value[0] ? | |
7062 | "un" : ""); | |
88cc8377 | 7063 | return volume_alsa_set_mute(!ucontrol->value.integer.value[0]); |
0d204c34 HMH |
7064 | } |
7065 | ||
c3aa4723 | 7066 | static struct snd_kcontrol_new volume_alsa_control_vol __initdata = { |
0d204c34 HMH |
7067 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
7068 | .name = "Console Playback Volume", | |
7069 | .index = 0, | |
7070 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
7071 | .info = volume_alsa_vol_info, | |
7072 | .get = volume_alsa_vol_get, | |
7073 | }; | |
7074 | ||
c3aa4723 | 7075 | static struct snd_kcontrol_new volume_alsa_control_mute __initdata = { |
0d204c34 HMH |
7076 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
7077 | .name = "Console Playback Switch", | |
7078 | .index = 0, | |
7079 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
7080 | .info = volume_alsa_mute_info, | |
7081 | .get = volume_alsa_mute_get, | |
7082 | }; | |
7083 | ||
fd3c3a42 | 7084 | static void volume_suspend(void) |
329e4e18 HMH |
7085 | { |
7086 | tpacpi_volume_checkpoint_nvram(); | |
7087 | } | |
7088 | ||
0d204c34 HMH |
7089 | static void volume_resume(void) |
7090 | { | |
9a417ec0 AL |
7091 | if (software_mute_active) { |
7092 | if (volume_set_software_mute(false) < 0) | |
7093 | pr_warn("Failed to restore software mute\n"); | |
7094 | } else { | |
7095 | volume_alsa_notify_change(); | |
7096 | } | |
0d204c34 HMH |
7097 | } |
7098 | ||
329e4e18 HMH |
7099 | static void volume_shutdown(void) |
7100 | { | |
7101 | tpacpi_volume_checkpoint_nvram(); | |
7102 | } | |
7103 | ||
7104 | static void volume_exit(void) | |
7105 | { | |
0d204c34 HMH |
7106 | if (alsa_card) { |
7107 | snd_card_free(alsa_card); | |
7108 | alsa_card = NULL; | |
7109 | } | |
7110 | ||
329e4e18 | 7111 | tpacpi_volume_checkpoint_nvram(); |
9a417ec0 AL |
7112 | |
7113 | if (software_mute_active) | |
7114 | volume_exit_software_mute(); | |
329e4e18 HMH |
7115 | } |
7116 | ||
0d204c34 HMH |
7117 | static int __init volume_create_alsa_mixer(void) |
7118 | { | |
7119 | struct snd_card *card; | |
7120 | struct tpacpi_alsa_data *data; | |
7121 | struct snd_kcontrol *ctl_vol; | |
7122 | struct snd_kcontrol *ctl_mute; | |
7123 | int rc; | |
7124 | ||
89235e55 TI |
7125 | rc = snd_card_new(&tpacpi_pdev->dev, |
7126 | alsa_index, alsa_id, THIS_MODULE, | |
7127 | sizeof(struct tpacpi_alsa_data), &card); | |
74c75c18 | 7128 | if (rc < 0 || !card) { |
0978e012 | 7129 | pr_err("Failed to create ALSA card structures: %d\n", rc); |
74c75c18 HMH |
7130 | return 1; |
7131 | } | |
0d204c34 HMH |
7132 | |
7133 | BUG_ON(!card->private_data); | |
7134 | data = card->private_data; | |
7135 | data->card = card; | |
7136 | ||
7137 | strlcpy(card->driver, TPACPI_ALSA_DRVNAME, | |
7138 | sizeof(card->driver)); | |
7139 | strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME, | |
7140 | sizeof(card->shortname)); | |
7141 | snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s", | |
7142 | (thinkpad_id.ec_version_str) ? | |
7143 | thinkpad_id.ec_version_str : "(unknown)"); | |
7144 | snprintf(card->longname, sizeof(card->longname), | |
7145 | "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO, | |
7146 | (thinkpad_id.ec_version_str) ? | |
7147 | thinkpad_id.ec_version_str : "unknown"); | |
7148 | ||
7149 | if (volume_control_allowed) { | |
7150 | volume_alsa_control_vol.put = volume_alsa_vol_put; | |
7151 | volume_alsa_control_vol.access = | |
7152 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
7153 | ||
7154 | volume_alsa_control_mute.put = volume_alsa_mute_put; | |
7155 | volume_alsa_control_mute.access = | |
7156 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
7157 | } | |
7158 | ||
7159 | if (!tp_features.mixer_no_level_control) { | |
7160 | ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); | |
7161 | rc = snd_ctl_add(card, ctl_vol); | |
7162 | if (rc < 0) { | |
0978e012 JP |
7163 | pr_err("Failed to create ALSA volume control: %d\n", |
7164 | rc); | |
74c75c18 | 7165 | goto err_exit; |
78f81cc4 | 7166 | } |
0d204c34 HMH |
7167 | data->ctl_vol_id = &ctl_vol->id; |
7168 | } | |
78f81cc4 | 7169 | |
0d204c34 HMH |
7170 | ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); |
7171 | rc = snd_ctl_add(card, ctl_mute); | |
7172 | if (rc < 0) { | |
0978e012 | 7173 | pr_err("Failed to create ALSA mute control: %d\n", rc); |
74c75c18 | 7174 | goto err_exit; |
0d204c34 HMH |
7175 | } |
7176 | data->ctl_mute_id = &ctl_mute->id; | |
35ff8b9f | 7177 | |
0d204c34 | 7178 | rc = snd_card_register(card); |
0d204c34 | 7179 | if (rc < 0) { |
0978e012 | 7180 | pr_err("Failed to register ALSA card: %d\n", rc); |
74c75c18 | 7181 | goto err_exit; |
0d204c34 HMH |
7182 | } |
7183 | ||
7184 | alsa_card = card; | |
74c75c18 HMH |
7185 | return 0; |
7186 | ||
7187 | err_exit: | |
7188 | snd_card_free(card); | |
7189 | return 1; | |
0d204c34 HMH |
7190 | } |
7191 | ||
a112ceee HMH |
7192 | #define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ |
7193 | #define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ | |
7194 | ||
7195 | static const struct tpacpi_quirk volume_quirk_table[] __initconst = { | |
7196 | /* Whitelist volume level on all IBM by default */ | |
7197 | { .vendor = PCI_VENDOR_ID_IBM, | |
7198 | .bios = TPACPI_MATCH_ANY, | |
7199 | .ec = TPACPI_MATCH_ANY, | |
7200 | .quirks = TPACPI_VOL_Q_LEVEL }, | |
7201 | ||
7202 | /* Lenovo models with volume control (needs confirmation) */ | |
7203 | TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ | |
7204 | TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ | |
7205 | TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ | |
7206 | TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ | |
7207 | TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ | |
7208 | TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ | |
7209 | TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ | |
7210 | ||
7211 | /* Whitelist mute-only on all Lenovo by default */ | |
7212 | { .vendor = PCI_VENDOR_ID_LENOVO, | |
7213 | .bios = TPACPI_MATCH_ANY, | |
7214 | .ec = TPACPI_MATCH_ANY, | |
7215 | .quirks = TPACPI_VOL_Q_MUTEONLY } | |
7216 | }; | |
7217 | ||
329e4e18 HMH |
7218 | static int __init volume_init(struct ibm_init_struct *iibm) |
7219 | { | |
a112ceee | 7220 | unsigned long quirks; |
0d204c34 | 7221 | int rc; |
a112ceee | 7222 | |
329e4e18 HMH |
7223 | vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); |
7224 | ||
7225 | mutex_init(&volume_mutex); | |
7226 | ||
7227 | /* | |
7228 | * Check for module parameter bogosity, note that we | |
7229 | * init volume_mode to TPACPI_VOL_MODE_MAX in order to be | |
7230 | * able to detect "unspecified" | |
7231 | */ | |
7232 | if (volume_mode > TPACPI_VOL_MODE_MAX) | |
7233 | return -EINVAL; | |
7234 | ||
7235 | if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { | |
0978e012 JP |
7236 | pr_err("UCMS step volume mode not implemented, " |
7237 | "please contact %s\n", TPACPI_MAIL); | |
329e4e18 HMH |
7238 | return 1; |
7239 | } | |
7240 | ||
a112ceee HMH |
7241 | if (volume_capabilities >= TPACPI_VOL_CAP_MAX) |
7242 | return -EINVAL; | |
7243 | ||
0d204c34 HMH |
7244 | /* |
7245 | * The ALSA mixer is our primary interface. | |
7246 | * When disabled, don't install the subdriver at all | |
7247 | */ | |
7248 | if (!alsa_enable) { | |
7249 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7250 | "ALSA mixer disabled by parameter, " | |
7251 | "not loading volume subdriver...\n"); | |
7252 | return 1; | |
7253 | } | |
7254 | ||
a112ceee HMH |
7255 | quirks = tpacpi_check_quirks(volume_quirk_table, |
7256 | ARRAY_SIZE(volume_quirk_table)); | |
7257 | ||
7258 | switch (volume_capabilities) { | |
7259 | case TPACPI_VOL_CAP_AUTO: | |
7260 | if (quirks & TPACPI_VOL_Q_MUTEONLY) | |
7261 | tp_features.mixer_no_level_control = 1; | |
7262 | else if (quirks & TPACPI_VOL_Q_LEVEL) | |
7263 | tp_features.mixer_no_level_control = 0; | |
7264 | else | |
7265 | return 1; /* no mixer */ | |
7266 | break; | |
7267 | case TPACPI_VOL_CAP_VOLMUTE: | |
7268 | tp_features.mixer_no_level_control = 0; | |
7269 | break; | |
7270 | case TPACPI_VOL_CAP_MUTEONLY: | |
7271 | tp_features.mixer_no_level_control = 1; | |
7272 | break; | |
7273 | default: | |
7274 | return 1; | |
7275 | } | |
7276 | ||
7277 | if (volume_capabilities != TPACPI_VOL_CAP_AUTO) | |
7278 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7279 | "using user-supplied volume_capabilities=%d\n", | |
7280 | volume_capabilities); | |
7281 | ||
329e4e18 HMH |
7282 | if (volume_mode == TPACPI_VOL_MODE_AUTO || |
7283 | volume_mode == TPACPI_VOL_MODE_MAX) { | |
7284 | volume_mode = TPACPI_VOL_MODE_ECNVRAM; | |
7285 | ||
7286 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7287 | "driver auto-selected volume_mode=%d\n", | |
7288 | volume_mode); | |
7289 | } else { | |
7290 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7291 | "using user-supplied volume_mode=%d\n", | |
7292 | volume_mode); | |
7293 | } | |
7294 | ||
7295 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
a112ceee HMH |
7296 | "mute is supported, volume control is %s\n", |
7297 | str_supported(!tp_features.mixer_no_level_control)); | |
329e4e18 | 7298 | |
9a417ec0 AL |
7299 | if (software_mute_requested && volume_set_software_mute(true) == 0) { |
7300 | software_mute_active = true; | |
7301 | } else { | |
7302 | rc = volume_create_alsa_mixer(); | |
7303 | if (rc) { | |
7304 | pr_err("Could not create the ALSA mixer interface\n"); | |
7305 | return rc; | |
7306 | } | |
0d204c34 | 7307 | |
9a417ec0 AL |
7308 | pr_info("Console audio control enabled, mode: %s\n", |
7309 | (volume_control_allowed) ? | |
7310 | "override (read/write)" : | |
7311 | "monitor (read only)"); | |
7312 | } | |
c7ac6291 | 7313 | |
0d204c34 HMH |
7314 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, |
7315 | "registering volume hotkeys as change notification\n"); | |
7316 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
7317 | | TP_ACPI_HKEY_VOLUP_MASK | |
7318 | | TP_ACPI_HKEY_VOLDWN_MASK | |
7319 | | TP_ACPI_HKEY_MUTE_MASK); | |
7320 | ||
329e4e18 HMH |
7321 | return 0; |
7322 | } | |
f74a27d4 | 7323 | |
887965e6 | 7324 | static int volume_read(struct seq_file *m) |
78f81cc4 | 7325 | { |
329e4e18 | 7326 | u8 status; |
78f81cc4 | 7327 | |
329e4e18 | 7328 | if (volume_get_status(&status) < 0) { |
887965e6 | 7329 | seq_printf(m, "level:\t\tunreadable\n"); |
78f81cc4 | 7330 | } else { |
a112ceee | 7331 | if (tp_features.mixer_no_level_control) |
887965e6 | 7332 | seq_printf(m, "level:\t\tunsupported\n"); |
a112ceee | 7333 | else |
887965e6 | 7334 | seq_printf(m, "level:\t\t%d\n", |
a112ceee HMH |
7335 | status & TP_EC_AUDIO_LVL_MSK); |
7336 | ||
887965e6 | 7337 | seq_printf(m, "mute:\t\t%s\n", |
329e4e18 | 7338 | onoff(status, TP_EC_AUDIO_MUTESW)); |
a112ceee | 7339 | |
c7ac6291 | 7340 | if (volume_control_allowed) { |
887965e6 | 7341 | seq_printf(m, "commands:\tunmute, mute\n"); |
c7ac6291 | 7342 | if (!tp_features.mixer_no_level_control) { |
887965e6 | 7343 | seq_printf(m, |
c7ac6291 | 7344 | "commands:\tup, down\n"); |
887965e6 | 7345 | seq_printf(m, |
c7ac6291 HMH |
7346 | "commands:\tlevel <level>" |
7347 | " (<level> is 0-%d)\n", | |
7348 | TP_EC_VOLUME_MAX); | |
7349 | } | |
78f81cc4 BD |
7350 | } |
7351 | } | |
7352 | ||
7353 | return 0; | |
7354 | } | |
7355 | ||
78f81cc4 BD |
7356 | static int volume_write(char *buf) |
7357 | { | |
329e4e18 HMH |
7358 | u8 s; |
7359 | u8 new_level, new_mute; | |
7360 | int l; | |
78f81cc4 | 7361 | char *cmd; |
329e4e18 | 7362 | int rc; |
78f81cc4 | 7363 | |
c7ac6291 HMH |
7364 | /* |
7365 | * We do allow volume control at driver startup, so that the | |
7366 | * user can set initial state through the volume=... parameter hack. | |
7367 | */ | |
7368 | if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { | |
7369 | if (unlikely(!tp_warned.volume_ctrl_forbidden)) { | |
7370 | tp_warned.volume_ctrl_forbidden = 1; | |
0978e012 JP |
7371 | pr_notice("Console audio control in monitor mode, " |
7372 | "changes are not allowed\n"); | |
7373 | pr_notice("Use the volume_control=1 module parameter " | |
7374 | "to enable volume control\n"); | |
c7ac6291 HMH |
7375 | } |
7376 | return -EPERM; | |
7377 | } | |
7378 | ||
329e4e18 HMH |
7379 | rc = volume_get_status(&s); |
7380 | if (rc < 0) | |
7381 | return rc; | |
78f81cc4 | 7382 | |
329e4e18 HMH |
7383 | new_level = s & TP_EC_AUDIO_LVL_MSK; |
7384 | new_mute = s & TP_EC_AUDIO_MUTESW_MSK; | |
7385 | ||
7386 | while ((cmd = next_cmd(&buf))) { | |
a112ceee HMH |
7387 | if (!tp_features.mixer_no_level_control) { |
7388 | if (strlencmp(cmd, "up") == 0) { | |
7389 | if (new_mute) | |
7390 | new_mute = 0; | |
7391 | else if (new_level < TP_EC_VOLUME_MAX) | |
7392 | new_level++; | |
7393 | continue; | |
7394 | } else if (strlencmp(cmd, "down") == 0) { | |
7395 | if (new_mute) | |
7396 | new_mute = 0; | |
7397 | else if (new_level > 0) | |
7398 | new_level--; | |
7399 | continue; | |
7400 | } else if (sscanf(cmd, "level %u", &l) == 1 && | |
7401 | l >= 0 && l <= TP_EC_VOLUME_MAX) { | |
7402 | new_level = l; | |
7403 | continue; | |
7404 | } | |
7405 | } | |
7406 | if (strlencmp(cmd, "mute") == 0) | |
329e4e18 | 7407 | new_mute = TP_EC_AUDIO_MUTESW_MSK; |
a112ceee HMH |
7408 | else if (strlencmp(cmd, "unmute") == 0) |
7409 | new_mute = 0; | |
7410 | else | |
1da177e4 | 7411 | return -EINVAL; |
329e4e18 | 7412 | } |
1da177e4 | 7413 | |
a112ceee HMH |
7414 | if (tp_features.mixer_no_level_control) { |
7415 | tpacpi_disclose_usertask("procfs volume", "%smute\n", | |
7416 | new_mute ? "" : "un"); | |
7417 | rc = volume_set_mute(!!new_mute); | |
7418 | } else { | |
7419 | tpacpi_disclose_usertask("procfs volume", | |
7420 | "%smute and set level to %d\n", | |
7421 | new_mute ? "" : "un", new_level); | |
7422 | rc = volume_set_status(new_mute | new_level); | |
7423 | } | |
0d204c34 | 7424 | volume_alsa_notify_change(); |
78f81cc4 | 7425 | |
329e4e18 | 7426 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
7427 | } |
7428 | ||
a5763f22 HMH |
7429 | static struct ibm_struct volume_driver_data = { |
7430 | .name = "volume", | |
7431 | .read = volume_read, | |
7432 | .write = volume_write, | |
329e4e18 HMH |
7433 | .exit = volume_exit, |
7434 | .suspend = volume_suspend, | |
0d204c34 | 7435 | .resume = volume_resume, |
329e4e18 | 7436 | .shutdown = volume_shutdown, |
a5763f22 | 7437 | }; |
56b6aeb0 | 7438 | |
ff850c33 HMH |
7439 | #else /* !CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
7440 | ||
7441 | #define alsa_card NULL | |
7442 | ||
7443 | static void inline volume_alsa_notify_change(void) | |
7444 | { | |
7445 | } | |
7446 | ||
7447 | static int __init volume_init(struct ibm_init_struct *iibm) | |
7448 | { | |
0978e012 | 7449 | pr_info("volume: disabled as there is no ALSA support in this kernel\n"); |
ff850c33 HMH |
7450 | |
7451 | return 1; | |
7452 | } | |
7453 | ||
7454 | static struct ibm_struct volume_driver_data = { | |
7455 | .name = "volume", | |
7456 | }; | |
7457 | ||
7458 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ | |
7459 | ||
56b6aeb0 HMH |
7460 | /************************************************************************* |
7461 | * Fan subdriver | |
7462 | */ | |
7463 | ||
7464 | /* | |
7465 | * FAN ACCESS MODES | |
7466 | * | |
efa27145 | 7467 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
7468 | * ACPI GFAN method: returns fan level |
7469 | * | |
efa27145 | 7470 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 7471 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 7472 | * |
efa27145 | 7473 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
7474 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
7475 | * | |
f51d1a39 HMH |
7476 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
7477 | * it for writing. | |
56b6aeb0 | 7478 | * |
efa27145 | 7479 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
7480 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
7481 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
7482 | * |
7483 | * Fan speed changes of any sort (including those caused by the | |
7484 | * disengaged mode) are usually done slowly by the firmware as the | |
9ddc5b6f | 7485 | * maximum amount of fan duty cycle change per second seems to be |
56b6aeb0 HMH |
7486 | * limited. |
7487 | * | |
7488 | * Reading is not available if GFAN exists. | |
7489 | * Writing is not available if SFAN exists. | |
7490 | * | |
7491 | * Bits | |
7492 | * 7 automatic mode engaged; | |
7493 | * (default operation mode of the ThinkPad) | |
7494 | * fan level is ignored in this mode. | |
f51d1a39 | 7495 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 7496 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
7497 | * the tachometer while the fan controller ramps up |
7498 | * the speed (which can take up to a few *minutes*). | |
7499 | * Speeds up fan to 100% duty-cycle, which is far above | |
7500 | * the standard RPM levels. It is not impossible that | |
7501 | * it could cause hardware damage. | |
56b6aeb0 HMH |
7502 | * 5-3 unused in some models. Extra bits for fan level |
7503 | * in others, but still useless as all values above | |
7504 | * 7 map to the same speed as level 7 in these models. | |
7505 | * 2-0 fan level (0..7 usually) | |
7506 | * 0x00 = stop | |
7507 | * 0x07 = max (set when temperatures critical) | |
7508 | * Some ThinkPads may have other levels, see | |
efa27145 | 7509 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
7510 | * |
7511 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
b595076a | 7512 | * boot. Apparently the EC does not initialize it, so unless ACPI DSDT |
56b6aeb0 HMH |
7513 | * does so, its initial value is meaningless (0x07). |
7514 | * | |
7515 | * For firmware bugs, refer to: | |
7516 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7517 | * | |
7518 | * ---- | |
7519 | * | |
7520 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
7521 | * Main fan tachometer reading (in RPM) | |
7522 | * | |
7523 | * This register is present on all ThinkPads with a new-style EC, and | |
7524 | * it is known not to be present on the A21m/e, and T22, as there is | |
7525 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
7526 | * ThinkPads from this same time period (and earlier) probably lack the | |
7527 | * tachometer as well. | |
7528 | * | |
877d0310 | 7529 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firmware |
56b6aeb0 HMH |
7530 | * was never fixed by IBM to report the EC firmware version string |
7531 | * probably support the tachometer (like the early X models), so | |
7532 | * detecting it is quite hard. We need more data to know for sure. | |
7533 | * | |
7534 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
7535 | * might result. | |
7536 | * | |
f51d1a39 HMH |
7537 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
7538 | * mode. | |
56b6aeb0 HMH |
7539 | * |
7540 | * For firmware bugs, refer to: | |
7541 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
7542 | * | |
d7377247 HMH |
7543 | * ---- |
7544 | * | |
7545 | * ThinkPad EC register 0x31 bit 0 (only on select models) | |
7546 | * | |
7547 | * When bit 0 of EC register 0x31 is zero, the tachometer registers | |
7548 | * show the speed of the main fan. When bit 0 of EC register 0x31 | |
7549 | * is one, the tachometer registers show the speed of the auxiliary | |
7550 | * fan. | |
7551 | * | |
7552 | * Fan control seems to affect both fans, regardless of the state | |
7553 | * of this bit. | |
7554 | * | |
7555 | * So far, only the firmware for the X60/X61 non-tablet versions | |
7556 | * seem to support this (firmware TP-7M). | |
7557 | * | |
efa27145 | 7558 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
7559 | * ThinkPad X31, X40, X41. Not available in the X60. |
7560 | * | |
7561 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
7562 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
7563 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
7564 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
7565 | * | |
7566 | * The speeds are stored on handles | |
7567 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
7568 | * | |
af901ca1 | 7569 | * There are three default speed sets, accessible as handles: |
56b6aeb0 HMH |
7570 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H |
7571 | * | |
7572 | * ACPI DSDT switches which set is in use depending on various | |
7573 | * factors. | |
7574 | * | |
efa27145 | 7575 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
7576 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
7577 | * but the ACPI tables just mention level 7. | |
7578 | */ | |
7579 | ||
f74a27d4 HMH |
7580 | enum { /* Fan control constants */ |
7581 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
7582 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
7583 | * 0x84 must be read before 0x85 */ | |
d7377247 HMH |
7584 | fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M) |
7585 | bit 0 selects which fan is active */ | |
f74a27d4 HMH |
7586 | |
7587 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
7588 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
7589 | ||
7590 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
7591 | }; | |
7592 | ||
7593 | enum fan_status_access_mode { | |
7594 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
7595 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
7596 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
7597 | }; | |
7598 | ||
7599 | enum fan_control_access_mode { | |
7600 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
7601 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
7602 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
7603 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
7604 | }; | |
7605 | ||
7606 | enum fan_control_commands { | |
7607 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
7608 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
7609 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
7610 | * and also watchdog cmd */ | |
7611 | }; | |
7612 | ||
90ab5ee9 | 7613 | static bool fan_control_allowed; |
f74a27d4 | 7614 | |
69ba91cb HMH |
7615 | static enum fan_status_access_mode fan_status_access_mode; |
7616 | static enum fan_control_access_mode fan_control_access_mode; | |
7617 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 7618 | |
778b4d74 | 7619 | static u8 fan_control_initial_status; |
fe98a52c | 7620 | static u8 fan_control_desired_level; |
0081b162 | 7621 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
7622 | static int fan_watchdog_maxinterval; |
7623 | ||
7624 | static struct mutex fan_mutex; | |
778b4d74 | 7625 | |
25c68a33 | 7626 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 7627 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 7628 | |
e0c7dfe7 HMH |
7629 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
7630 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
7631 | "\\FSPD", /* 600e/x, 770e, 770x */ |
7632 | ); /* all others */ | |
e0c7dfe7 | 7633 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
7634 | "JFNS", /* 770x-JL */ |
7635 | ); /* all others */ | |
7636 | ||
1c2ece75 HMH |
7637 | /* |
7638 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the | |
7639 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could | |
7640 | * be in auto mode (0x80). | |
7641 | * | |
7642 | * This is corrected by any write to HFSP either by the driver, or | |
7643 | * by the firmware. | |
7644 | * | |
7645 | * We assume 0x07 really means auto mode while this quirk is active, | |
7646 | * as this is far more likely than the ThinkPad being in level 7, | |
7647 | * which is only used by the firmware during thermal emergencies. | |
7d95a3d5 HMH |
7648 | * |
7649 | * Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52), | |
7650 | * TP-70 (T43, R52), which are known to be buggy. | |
1c2ece75 HMH |
7651 | */ |
7652 | ||
7d95a3d5 | 7653 | static void fan_quirk1_setup(void) |
1c2ece75 | 7654 | { |
1c2ece75 | 7655 | if (fan_control_initial_status == 0x07) { |
0978e012 JP |
7656 | pr_notice("fan_init: initial fan status is unknown, " |
7657 | "assuming it is in auto mode\n"); | |
7d95a3d5 | 7658 | tp_features.fan_ctrl_status_undef = 1; |
1c2ece75 HMH |
7659 | } |
7660 | } | |
7661 | ||
7662 | static void fan_quirk1_handle(u8 *fan_status) | |
7663 | { | |
7664 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
7665 | if (*fan_status != fan_control_initial_status) { | |
7666 | /* something changed the HFSP regisnter since | |
7667 | * driver init time, so it is not undefined | |
7668 | * anymore */ | |
7669 | tp_features.fan_ctrl_status_undef = 0; | |
7670 | } else { | |
7671 | /* Return most likely status. In fact, it | |
7672 | * might be the only possible status */ | |
7673 | *fan_status = TP_EC_FAN_AUTO; | |
7674 | } | |
7675 | } | |
7676 | } | |
7677 | ||
d7377247 HMH |
7678 | /* Select main fan on X60/X61, NOOP on others */ |
7679 | static bool fan_select_fan1(void) | |
7680 | { | |
7681 | if (tp_features.second_fan) { | |
7682 | u8 val; | |
7683 | ||
7684 | if (ec_read(fan_select_offset, &val) < 0) | |
7685 | return false; | |
7686 | val &= 0xFEU; | |
7687 | if (ec_write(fan_select_offset, val) < 0) | |
7688 | return false; | |
7689 | } | |
7690 | return true; | |
7691 | } | |
7692 | ||
7693 | /* Select secondary fan on X60/X61 */ | |
7694 | static bool fan_select_fan2(void) | |
7695 | { | |
7696 | u8 val; | |
7697 | ||
7698 | if (!tp_features.second_fan) | |
7699 | return false; | |
7700 | ||
7701 | if (ec_read(fan_select_offset, &val) < 0) | |
7702 | return false; | |
7703 | val |= 0x01U; | |
7704 | if (ec_write(fan_select_offset, val) < 0) | |
7705 | return false; | |
7706 | ||
7707 | return true; | |
7708 | } | |
7709 | ||
fe98a52c | 7710 | /* |
b21a15f6 | 7711 | * Call with fan_mutex held |
fe98a52c | 7712 | */ |
b21a15f6 | 7713 | static void fan_update_desired_level(u8 status) |
fe98a52c | 7714 | { |
b21a15f6 HMH |
7715 | if ((status & |
7716 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
7717 | if (status > 7) | |
7718 | fan_control_desired_level = 7; | |
7719 | else | |
7720 | fan_control_desired_level = status; | |
7721 | } | |
7722 | } | |
fe98a52c | 7723 | |
b21a15f6 HMH |
7724 | static int fan_get_status(u8 *status) |
7725 | { | |
7726 | u8 s; | |
fe98a52c | 7727 | |
b21a15f6 HMH |
7728 | /* TODO: |
7729 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 7730 | |
b21a15f6 | 7731 | switch (fan_status_access_mode) { |
eceeb437 | 7732 | case TPACPI_FAN_RD_ACPI_GFAN: { |
b21a15f6 | 7733 | /* 570, 600e/x, 770e, 770x */ |
eceeb437 | 7734 | int res; |
fe98a52c | 7735 | |
eceeb437 | 7736 | if (unlikely(!acpi_evalf(gfan_handle, &res, NULL, "d"))) |
b21a15f6 | 7737 | return -EIO; |
fe98a52c | 7738 | |
b21a15f6 | 7739 | if (likely(status)) |
eceeb437 | 7740 | *status = res & 0x07; |
fe98a52c | 7741 | |
b21a15f6 | 7742 | break; |
eceeb437 | 7743 | } |
b21a15f6 HMH |
7744 | case TPACPI_FAN_RD_TPEC: |
7745 | /* all except 570, 600e/x, 770e, 770x */ | |
7746 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
7747 | return -EIO; | |
7748 | ||
1c2ece75 | 7749 | if (likely(status)) { |
b21a15f6 | 7750 | *status = s; |
1c2ece75 HMH |
7751 | fan_quirk1_handle(status); |
7752 | } | |
fe98a52c | 7753 | |
fe98a52c | 7754 | break; |
b21a15f6 | 7755 | |
fe98a52c | 7756 | default: |
b21a15f6 | 7757 | return -ENXIO; |
fe98a52c HMH |
7758 | } |
7759 | ||
b21a15f6 HMH |
7760 | return 0; |
7761 | } | |
fe98a52c | 7762 | |
b21a15f6 HMH |
7763 | static int fan_get_status_safe(u8 *status) |
7764 | { | |
7765 | int rc; | |
7766 | u8 s; | |
fe98a52c | 7767 | |
7646ea88 | 7768 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 HMH |
7769 | return -ERESTARTSYS; |
7770 | rc = fan_get_status(&s); | |
7771 | if (!rc) | |
7772 | fan_update_desired_level(s); | |
7773 | mutex_unlock(&fan_mutex); | |
fe98a52c | 7774 | |
b21a15f6 HMH |
7775 | if (status) |
7776 | *status = s; | |
fe98a52c | 7777 | |
b21a15f6 HMH |
7778 | return rc; |
7779 | } | |
7780 | ||
7781 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 7782 | { |
b21a15f6 | 7783 | u8 hi, lo; |
fe98a52c | 7784 | |
b21a15f6 HMH |
7785 | switch (fan_status_access_mode) { |
7786 | case TPACPI_FAN_RD_TPEC: | |
7787 | /* all except 570, 600e/x, 770e, 770x */ | |
d7377247 HMH |
7788 | if (unlikely(!fan_select_fan1())) |
7789 | return -EIO; | |
b21a15f6 HMH |
7790 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
7791 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
7792 | return -EIO; | |
fe98a52c | 7793 | |
b21a15f6 HMH |
7794 | if (likely(speed)) |
7795 | *speed = (hi << 8) | lo; | |
fe98a52c | 7796 | |
b21a15f6 | 7797 | break; |
fe98a52c | 7798 | |
b21a15f6 HMH |
7799 | default: |
7800 | return -ENXIO; | |
7801 | } | |
fe98a52c | 7802 | |
b21a15f6 | 7803 | return 0; |
fe98a52c HMH |
7804 | } |
7805 | ||
d7377247 HMH |
7806 | static int fan2_get_speed(unsigned int *speed) |
7807 | { | |
7808 | u8 hi, lo; | |
7809 | bool rc; | |
7810 | ||
7811 | switch (fan_status_access_mode) { | |
7812 | case TPACPI_FAN_RD_TPEC: | |
7813 | /* all except 570, 600e/x, 770e, 770x */ | |
7814 | if (unlikely(!fan_select_fan2())) | |
7815 | return -EIO; | |
7816 | rc = !acpi_ec_read(fan_rpm_offset, &lo) || | |
7817 | !acpi_ec_read(fan_rpm_offset + 1, &hi); | |
7818 | fan_select_fan1(); /* play it safe */ | |
7819 | if (rc) | |
7820 | return -EIO; | |
7821 | ||
7822 | if (likely(speed)) | |
7823 | *speed = (hi << 8) | lo; | |
7824 | ||
7825 | break; | |
7826 | ||
7827 | default: | |
7828 | return -ENXIO; | |
7829 | } | |
7830 | ||
7831 | return 0; | |
7832 | } | |
7833 | ||
b21a15f6 | 7834 | static int fan_set_level(int level) |
fe98a52c | 7835 | { |
b21a15f6 HMH |
7836 | if (!fan_control_allowed) |
7837 | return -EPERM; | |
fe98a52c | 7838 | |
b21a15f6 HMH |
7839 | switch (fan_control_access_mode) { |
7840 | case TPACPI_FAN_WR_ACPI_SFAN: | |
7841 | if (level >= 0 && level <= 7) { | |
7842 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
7843 | return -EIO; | |
7844 | } else | |
7845 | return -EINVAL; | |
7846 | break; | |
fe98a52c | 7847 | |
b21a15f6 HMH |
7848 | case TPACPI_FAN_WR_ACPI_FANS: |
7849 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
7850 | if (!(level & TP_EC_FAN_AUTO) && |
7851 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
7852 | ((level < 0) || (level > 7))) |
7853 | return -EINVAL; | |
fe98a52c | 7854 | |
b21a15f6 HMH |
7855 | /* safety net should the EC not support AUTO |
7856 | * or FULLSPEED mode bits and just ignore them */ | |
7857 | if (level & TP_EC_FAN_FULLSPEED) | |
7858 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 7859 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 7860 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 7861 | |
b21a15f6 HMH |
7862 | if (!acpi_ec_write(fan_status_offset, level)) |
7863 | return -EIO; | |
7864 | else | |
7865 | tp_features.fan_ctrl_status_undef = 0; | |
7866 | break; | |
fe98a52c | 7867 | |
b21a15f6 HMH |
7868 | default: |
7869 | return -ENXIO; | |
7870 | } | |
74a60c0f HMH |
7871 | |
7872 | vdbg_printk(TPACPI_DBG_FAN, | |
7873 | "fan control: set fan control register to 0x%02x\n", level); | |
b21a15f6 | 7874 | return 0; |
fe98a52c HMH |
7875 | } |
7876 | ||
b21a15f6 | 7877 | static int fan_set_level_safe(int level) |
fe98a52c | 7878 | { |
b21a15f6 | 7879 | int rc; |
fe98a52c | 7880 | |
b21a15f6 HMH |
7881 | if (!fan_control_allowed) |
7882 | return -EPERM; | |
fe98a52c | 7883 | |
7646ea88 | 7884 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7885 | return -ERESTARTSYS; |
fe98a52c | 7886 | |
b21a15f6 HMH |
7887 | if (level == TPACPI_FAN_LAST_LEVEL) |
7888 | level = fan_control_desired_level; | |
fe98a52c | 7889 | |
b21a15f6 HMH |
7890 | rc = fan_set_level(level); |
7891 | if (!rc) | |
7892 | fan_update_desired_level(level); | |
7893 | ||
7894 | mutex_unlock(&fan_mutex); | |
7895 | return rc; | |
fe98a52c HMH |
7896 | } |
7897 | ||
b21a15f6 | 7898 | static int fan_set_enable(void) |
fe98a52c | 7899 | { |
b21a15f6 HMH |
7900 | u8 s; |
7901 | int rc; | |
fe98a52c | 7902 | |
ecf2a80a HMH |
7903 | if (!fan_control_allowed) |
7904 | return -EPERM; | |
7905 | ||
7646ea88 | 7906 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7907 | return -ERESTARTSYS; |
fe98a52c | 7908 | |
b21a15f6 HMH |
7909 | switch (fan_control_access_mode) { |
7910 | case TPACPI_FAN_WR_ACPI_FANS: | |
7911 | case TPACPI_FAN_WR_TPEC: | |
7912 | rc = fan_get_status(&s); | |
7913 | if (rc < 0) | |
7914 | break; | |
fe98a52c | 7915 | |
b21a15f6 HMH |
7916 | /* Don't go out of emergency fan mode */ |
7917 | if (s != 7) { | |
7918 | s &= 0x07; | |
7919 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
7920 | } | |
fe98a52c | 7921 | |
b21a15f6 HMH |
7922 | if (!acpi_ec_write(fan_status_offset, s)) |
7923 | rc = -EIO; | |
7924 | else { | |
7925 | tp_features.fan_ctrl_status_undef = 0; | |
7926 | rc = 0; | |
7927 | } | |
7928 | break; | |
fe98a52c | 7929 | |
b21a15f6 HMH |
7930 | case TPACPI_FAN_WR_ACPI_SFAN: |
7931 | rc = fan_get_status(&s); | |
7932 | if (rc < 0) | |
7933 | break; | |
fe98a52c | 7934 | |
b21a15f6 | 7935 | s &= 0x07; |
fe98a52c | 7936 | |
b21a15f6 HMH |
7937 | /* Set fan to at least level 4 */ |
7938 | s |= 4; | |
fe08bc4b | 7939 | |
b21a15f6 | 7940 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 7941 | rc = -EIO; |
b21a15f6 HMH |
7942 | else |
7943 | rc = 0; | |
7944 | break; | |
78f81cc4 | 7945 | |
b21a15f6 HMH |
7946 | default: |
7947 | rc = -ENXIO; | |
7948 | } | |
5fba344c | 7949 | |
b21a15f6 | 7950 | mutex_unlock(&fan_mutex); |
74a60c0f HMH |
7951 | |
7952 | if (!rc) | |
7953 | vdbg_printk(TPACPI_DBG_FAN, | |
7954 | "fan control: set fan control register to 0x%02x\n", | |
7955 | s); | |
b21a15f6 | 7956 | return rc; |
69ba91cb | 7957 | } |
78f81cc4 | 7958 | |
b21a15f6 | 7959 | static int fan_set_disable(void) |
78f81cc4 | 7960 | { |
b21a15f6 | 7961 | int rc; |
c52f0aa5 | 7962 | |
b21a15f6 HMH |
7963 | if (!fan_control_allowed) |
7964 | return -EPERM; | |
78f81cc4 | 7965 | |
7646ea88 | 7966 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 7967 | return -ERESTARTSYS; |
3ef8a609 | 7968 | |
b21a15f6 HMH |
7969 | rc = 0; |
7970 | switch (fan_control_access_mode) { | |
7971 | case TPACPI_FAN_WR_ACPI_FANS: | |
7972 | case TPACPI_FAN_WR_TPEC: | |
7973 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
7974 | rc = -EIO; | |
7975 | else { | |
7976 | fan_control_desired_level = 0; | |
7977 | tp_features.fan_ctrl_status_undef = 0; | |
7978 | } | |
3ef8a609 HMH |
7979 | break; |
7980 | ||
b21a15f6 HMH |
7981 | case TPACPI_FAN_WR_ACPI_SFAN: |
7982 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
7983 | rc = -EIO; | |
7984 | else | |
7985 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
7986 | break; |
7987 | ||
7988 | default: | |
b21a15f6 | 7989 | rc = -ENXIO; |
78f81cc4 BD |
7990 | } |
7991 | ||
74a60c0f HMH |
7992 | if (!rc) |
7993 | vdbg_printk(TPACPI_DBG_FAN, | |
7994 | "fan control: set fan control register to 0\n"); | |
fe98a52c | 7995 | |
fe98a52c | 7996 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
7997 | return rc; |
7998 | } | |
7999 | ||
b21a15f6 | 8000 | static int fan_set_speed(int speed) |
c52f0aa5 | 8001 | { |
b21a15f6 | 8002 | int rc; |
c52f0aa5 | 8003 | |
b21a15f6 HMH |
8004 | if (!fan_control_allowed) |
8005 | return -EPERM; | |
3ef8a609 | 8006 | |
7646ea88 | 8007 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8008 | return -ERESTARTSYS; |
c52f0aa5 | 8009 | |
b21a15f6 HMH |
8010 | rc = 0; |
8011 | switch (fan_control_access_mode) { | |
8012 | case TPACPI_FAN_WR_ACPI_FANS: | |
8013 | if (speed >= 0 && speed <= 65535) { | |
8014 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
8015 | speed, speed, speed)) | |
8016 | rc = -EIO; | |
8017 | } else | |
8018 | rc = -EINVAL; | |
c52f0aa5 HMH |
8019 | break; |
8020 | ||
8021 | default: | |
b21a15f6 | 8022 | rc = -ENXIO; |
c52f0aa5 HMH |
8023 | } |
8024 | ||
b21a15f6 HMH |
8025 | mutex_unlock(&fan_mutex); |
8026 | return rc; | |
16663a87 HMH |
8027 | } |
8028 | ||
8029 | static void fan_watchdog_reset(void) | |
8030 | { | |
4985cd0a HMH |
8031 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
8032 | return; | |
8033 | ||
8fef502e | 8034 | if (fan_watchdog_maxinterval > 0 && |
41f63c53 TH |
8035 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
8036 | mod_delayed_work(tpacpi_wq, &fan_watchdog_task, | |
8037 | msecs_to_jiffies(fan_watchdog_maxinterval * 1000)); | |
8038 | else | |
8039 | cancel_delayed_work(&fan_watchdog_task); | |
16663a87 HMH |
8040 | } |
8041 | ||
b21a15f6 | 8042 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 8043 | { |
b21a15f6 | 8044 | int rc; |
18ad7996 | 8045 | |
b21a15f6 HMH |
8046 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
8047 | return; | |
a12095c2 | 8048 | |
0978e012 | 8049 | pr_notice("fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
8050 | rc = fan_set_enable(); |
8051 | if (rc < 0) { | |
0978e012 JP |
8052 | pr_err("fan watchdog: error %d while enabling fan, " |
8053 | "will try again later...\n", -rc); | |
b21a15f6 HMH |
8054 | /* reschedule for later */ |
8055 | fan_watchdog_reset(); | |
8056 | } | |
8057 | } | |
eaa7571b | 8058 | |
b21a15f6 HMH |
8059 | /* |
8060 | * SYSFS fan layout: hwmon compatible (device) | |
8061 | * | |
8062 | * pwm*_enable: | |
8063 | * 0: "disengaged" mode | |
8064 | * 1: manual mode | |
8065 | * 2: native EC "auto" mode (recommended, hardware default) | |
8066 | * | |
8067 | * pwm*: set speed in manual mode, ignored otherwise. | |
8068 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
8069 | * interpolation. | |
8070 | * | |
8071 | * fan*_input: tachometer reading, RPM | |
8072 | * | |
8073 | * | |
8074 | * SYSFS fan layout: extensions | |
8075 | * | |
8076 | * fan_watchdog (driver): | |
8077 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
8078 | */ | |
8079 | ||
8080 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
8081 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
8082 | struct device_attribute *attr, | |
8083 | char *buf) | |
8084 | { | |
8085 | int res, mode; | |
8086 | u8 status; | |
8087 | ||
8088 | res = fan_get_status_safe(&status); | |
8089 | if (res) | |
8090 | return res; | |
8091 | ||
b21a15f6 HMH |
8092 | if (status & TP_EC_FAN_FULLSPEED) { |
8093 | mode = 0; | |
8094 | } else if (status & TP_EC_FAN_AUTO) { | |
8095 | mode = 2; | |
8096 | } else | |
8097 | mode = 1; | |
8098 | ||
8099 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
8100 | } | |
a12095c2 | 8101 | |
b21a15f6 HMH |
8102 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
8103 | struct device_attribute *attr, | |
8104 | const char *buf, size_t count) | |
8105 | { | |
8106 | unsigned long t; | |
8107 | int res, level; | |
8108 | ||
8109 | if (parse_strtoul(buf, 2, &t)) | |
8110 | return -EINVAL; | |
8111 | ||
74a60c0f HMH |
8112 | tpacpi_disclose_usertask("hwmon pwm1_enable", |
8113 | "set fan mode to %lu\n", t); | |
8114 | ||
b21a15f6 HMH |
8115 | switch (t) { |
8116 | case 0: | |
8117 | level = TP_EC_FAN_FULLSPEED; | |
8118 | break; | |
8119 | case 1: | |
8120 | level = TPACPI_FAN_LAST_LEVEL; | |
8121 | break; | |
8122 | case 2: | |
8123 | level = TP_EC_FAN_AUTO; | |
8124 | break; | |
8125 | case 3: | |
8126 | /* reserved for software-controlled auto mode */ | |
8127 | return -ENOSYS; | |
18ad7996 | 8128 | default: |
b21a15f6 | 8129 | return -EINVAL; |
18ad7996 | 8130 | } |
b21a15f6 HMH |
8131 | |
8132 | res = fan_set_level_safe(level); | |
8133 | if (res == -ENXIO) | |
8134 | return -EINVAL; | |
8135 | else if (res < 0) | |
8136 | return res; | |
8137 | ||
8138 | fan_watchdog_reset(); | |
8139 | ||
8140 | return count; | |
18ad7996 HMH |
8141 | } |
8142 | ||
5fb73bc2 BM |
8143 | static DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, |
8144 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
b21a15f6 HMH |
8145 | |
8146 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
8147 | static ssize_t fan_pwm1_show(struct device *dev, | |
8148 | struct device_attribute *attr, | |
8149 | char *buf) | |
fe98a52c | 8150 | { |
b21a15f6 HMH |
8151 | int res; |
8152 | u8 status; | |
fe98a52c | 8153 | |
b21a15f6 HMH |
8154 | res = fan_get_status_safe(&status); |
8155 | if (res) | |
8156 | return res; | |
ecf2a80a | 8157 | |
b21a15f6 HMH |
8158 | if ((status & |
8159 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
8160 | status = fan_control_desired_level; | |
fe98a52c | 8161 | |
b21a15f6 HMH |
8162 | if (status > 7) |
8163 | status = 7; | |
fe98a52c | 8164 | |
b21a15f6 | 8165 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
8166 | } |
8167 | ||
b21a15f6 HMH |
8168 | static ssize_t fan_pwm1_store(struct device *dev, |
8169 | struct device_attribute *attr, | |
8170 | const char *buf, size_t count) | |
18ad7996 | 8171 | { |
b21a15f6 | 8172 | unsigned long s; |
1c6a334e | 8173 | int rc; |
b21a15f6 | 8174 | u8 status, newlevel; |
1c6a334e | 8175 | |
b21a15f6 HMH |
8176 | if (parse_strtoul(buf, 255, &s)) |
8177 | return -EINVAL; | |
8178 | ||
74a60c0f HMH |
8179 | tpacpi_disclose_usertask("hwmon pwm1", |
8180 | "set fan speed to %lu\n", s); | |
8181 | ||
b21a15f6 HMH |
8182 | /* scale down from 0-255 to 0-7 */ |
8183 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 8184 | |
7646ea88 | 8185 | if (mutex_lock_killable(&fan_mutex)) |
fc589a3c | 8186 | return -ERESTARTSYS; |
40ca9fdf | 8187 | |
b21a15f6 HMH |
8188 | rc = fan_get_status(&status); |
8189 | if (!rc && (status & | |
8190 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
8191 | rc = fan_set_level(newlevel); | |
8192 | if (rc == -ENXIO) | |
8193 | rc = -EINVAL; | |
8194 | else if (!rc) { | |
8195 | fan_update_desired_level(newlevel); | |
8196 | fan_watchdog_reset(); | |
eaa7571b | 8197 | } |
b21a15f6 | 8198 | } |
1c6a334e | 8199 | |
b21a15f6 | 8200 | mutex_unlock(&fan_mutex); |
72a979f0 | 8201 | return (rc) ? rc : count; |
b21a15f6 | 8202 | } |
1c6a334e | 8203 | |
5fb73bc2 | 8204 | static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, fan_pwm1_show, fan_pwm1_store); |
1c6a334e | 8205 | |
b21a15f6 HMH |
8206 | /* sysfs fan fan1_input ------------------------------------------------ */ |
8207 | static ssize_t fan_fan1_input_show(struct device *dev, | |
8208 | struct device_attribute *attr, | |
8209 | char *buf) | |
8210 | { | |
8211 | int res; | |
8212 | unsigned int speed; | |
1c6a334e | 8213 | |
b21a15f6 HMH |
8214 | res = fan_get_speed(&speed); |
8215 | if (res < 0) | |
8216 | return res; | |
1c6a334e | 8217 | |
b21a15f6 HMH |
8218 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
8219 | } | |
18ad7996 | 8220 | |
5fb73bc2 | 8221 | static DEVICE_ATTR(fan1_input, S_IRUGO, fan_fan1_input_show, NULL); |
40ca9fdf | 8222 | |
d7377247 HMH |
8223 | /* sysfs fan fan2_input ------------------------------------------------ */ |
8224 | static ssize_t fan_fan2_input_show(struct device *dev, | |
8225 | struct device_attribute *attr, | |
8226 | char *buf) | |
8227 | { | |
8228 | int res; | |
8229 | unsigned int speed; | |
8230 | ||
8231 | res = fan2_get_speed(&speed); | |
8232 | if (res < 0) | |
8233 | return res; | |
8234 | ||
8235 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
8236 | } | |
8237 | ||
5fb73bc2 | 8238 | static DEVICE_ATTR(fan2_input, S_IRUGO, fan_fan2_input_show, NULL); |
d7377247 | 8239 | |
b21a15f6 HMH |
8240 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
8241 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
8242 | char *buf) | |
8243 | { | |
8244 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
8245 | } |
8246 | ||
b21a15f6 HMH |
8247 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
8248 | const char *buf, size_t count) | |
18ad7996 | 8249 | { |
b21a15f6 HMH |
8250 | unsigned long t; |
8251 | ||
8252 | if (parse_strtoul(buf, 120, &t)) | |
8253 | return -EINVAL; | |
40ca9fdf | 8254 | |
ecf2a80a HMH |
8255 | if (!fan_control_allowed) |
8256 | return -EPERM; | |
8257 | ||
b21a15f6 HMH |
8258 | fan_watchdog_maxinterval = t; |
8259 | fan_watchdog_reset(); | |
40ca9fdf | 8260 | |
74a60c0f HMH |
8261 | tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t); |
8262 | ||
b21a15f6 HMH |
8263 | return count; |
8264 | } | |
8265 | ||
8266 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
8267 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
8268 | ||
8269 | /* --------------------------------------------------------------------- */ | |
8270 | static struct attribute *fan_attributes[] = { | |
5fb73bc2 BM |
8271 | &dev_attr_pwm1_enable.attr, &dev_attr_pwm1.attr, |
8272 | &dev_attr_fan1_input.attr, | |
d7377247 | 8273 | NULL, /* for fan2_input */ |
b21a15f6 HMH |
8274 | NULL |
8275 | }; | |
8276 | ||
8277 | static const struct attribute_group fan_attr_group = { | |
8278 | .attrs = fan_attributes, | |
8279 | }; | |
8280 | ||
d7377247 HMH |
8281 | #define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */ |
8282 | #define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */ | |
7d95a3d5 HMH |
8283 | |
8284 | #define TPACPI_FAN_QI(__id1, __id2, __quirks) \ | |
8285 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
8286 | .bios = TPACPI_MATCH_ANY, \ | |
8287 | .ec = TPID(__id1, __id2), \ | |
8288 | .quirks = __quirks } | |
8289 | ||
d7377247 HMH |
8290 | #define TPACPI_FAN_QL(__id1, __id2, __quirks) \ |
8291 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
8292 | .bios = TPACPI_MATCH_ANY, \ | |
8293 | .ec = TPID(__id1, __id2), \ | |
8294 | .quirks = __quirks } | |
8295 | ||
7d95a3d5 HMH |
8296 | static const struct tpacpi_quirk fan_quirk_table[] __initconst = { |
8297 | TPACPI_FAN_QI('1', 'Y', TPACPI_FAN_Q1), | |
8298 | TPACPI_FAN_QI('7', '8', TPACPI_FAN_Q1), | |
8299 | TPACPI_FAN_QI('7', '6', TPACPI_FAN_Q1), | |
8300 | TPACPI_FAN_QI('7', '0', TPACPI_FAN_Q1), | |
d7377247 | 8301 | TPACPI_FAN_QL('7', 'M', TPACPI_FAN_2FAN), |
7d95a3d5 HMH |
8302 | }; |
8303 | ||
d7377247 | 8304 | #undef TPACPI_FAN_QL |
7d95a3d5 HMH |
8305 | #undef TPACPI_FAN_QI |
8306 | ||
b21a15f6 HMH |
8307 | static int __init fan_init(struct ibm_init_struct *iibm) |
8308 | { | |
8309 | int rc; | |
7d95a3d5 | 8310 | unsigned long quirks; |
b21a15f6 | 8311 | |
74a60c0f HMH |
8312 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8313 | "initializing fan subdriver\n"); | |
b21a15f6 HMH |
8314 | |
8315 | mutex_init(&fan_mutex); | |
8316 | fan_status_access_mode = TPACPI_FAN_NONE; | |
8317 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8318 | fan_control_commands = 0; | |
8319 | fan_watchdog_maxinterval = 0; | |
8320 | tp_features.fan_ctrl_status_undef = 0; | |
d7377247 | 8321 | tp_features.second_fan = 0; |
b21a15f6 HMH |
8322 | fan_control_desired_level = 7; |
8323 | ||
e28393c0 HMH |
8324 | if (tpacpi_is_ibm()) { |
8325 | TPACPI_ACPIHANDLE_INIT(fans); | |
8326 | TPACPI_ACPIHANDLE_INIT(gfan); | |
8327 | TPACPI_ACPIHANDLE_INIT(sfan); | |
8328 | } | |
b21a15f6 | 8329 | |
7d95a3d5 HMH |
8330 | quirks = tpacpi_check_quirks(fan_quirk_table, |
8331 | ARRAY_SIZE(fan_quirk_table)); | |
8332 | ||
b21a15f6 HMH |
8333 | if (gfan_handle) { |
8334 | /* 570, 600e/x, 770e, 770x */ | |
8335 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
8336 | } else { | |
8337 | /* all other ThinkPads: note that even old-style | |
8338 | * ThinkPad ECs supports the fan control register */ | |
8339 | if (likely(acpi_ec_read(fan_status_offset, | |
8340 | &fan_control_initial_status))) { | |
8341 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
7d95a3d5 HMH |
8342 | if (quirks & TPACPI_FAN_Q1) |
8343 | fan_quirk1_setup(); | |
d7377247 HMH |
8344 | if (quirks & TPACPI_FAN_2FAN) { |
8345 | tp_features.second_fan = 1; | |
8346 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, | |
8347 | "secondary fan support enabled\n"); | |
8348 | } | |
b21a15f6 | 8349 | } else { |
0978e012 | 8350 | pr_err("ThinkPad ACPI EC access misbehaving, " |
b21a15f6 HMH |
8351 | "fan status and control unavailable\n"); |
8352 | return 1; | |
8353 | } | |
8354 | } | |
8355 | ||
8356 | if (sfan_handle) { | |
8357 | /* 570, 770x-JL */ | |
8358 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
8359 | fan_control_commands |= | |
8360 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
8361 | } else { | |
8362 | if (!gfan_handle) { | |
8363 | /* gfan without sfan means no fan control */ | |
8364 | /* all other models implement TP EC 0x2f control */ | |
8365 | ||
8366 | if (fans_handle) { | |
8367 | /* X31, X40, X41 */ | |
8368 | fan_control_access_mode = | |
8369 | TPACPI_FAN_WR_ACPI_FANS; | |
8370 | fan_control_commands |= | |
8371 | TPACPI_FAN_CMD_SPEED | | |
8372 | TPACPI_FAN_CMD_LEVEL | | |
8373 | TPACPI_FAN_CMD_ENABLE; | |
8374 | } else { | |
8375 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
8376 | fan_control_commands |= | |
8377 | TPACPI_FAN_CMD_LEVEL | | |
8378 | TPACPI_FAN_CMD_ENABLE; | |
8379 | } | |
fe98a52c | 8380 | } |
b21a15f6 | 8381 | } |
18ad7996 | 8382 | |
74a60c0f HMH |
8383 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8384 | "fan is %s, modes %d, %d\n", | |
b21a15f6 HMH |
8385 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || |
8386 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
8387 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 8388 | |
b21a15f6 HMH |
8389 | /* fan control master switch */ |
8390 | if (!fan_control_allowed) { | |
8391 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8392 | fan_control_commands = 0; | |
74a60c0f | 8393 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
b21a15f6 | 8394 | "fan control features disabled by parameter\n"); |
18ad7996 | 8395 | } |
40ca9fdf | 8396 | |
b21a15f6 HMH |
8397 | /* update fan_control_desired_level */ |
8398 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
8399 | fan_get_status_safe(NULL); | |
fe98a52c | 8400 | |
b21a15f6 HMH |
8401 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
8402 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
d7377247 HMH |
8403 | if (tp_features.second_fan) { |
8404 | /* attach second fan tachometer */ | |
8405 | fan_attributes[ARRAY_SIZE(fan_attributes)-2] = | |
5fb73bc2 | 8406 | &dev_attr_fan2_input.attr; |
d7377247 | 8407 | } |
b21a15f6 HMH |
8408 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
8409 | &fan_attr_group); | |
b21a15f6 HMH |
8410 | if (rc < 0) |
8411 | return rc; | |
9c0a76e1 HMH |
8412 | |
8413 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
8414 | &driver_attr_fan_watchdog); | |
8415 | if (rc < 0) { | |
8416 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, | |
8417 | &fan_attr_group); | |
8418 | return rc; | |
8419 | } | |
b21a15f6 HMH |
8420 | return 0; |
8421 | } else | |
8422 | return 1; | |
56b6aeb0 HMH |
8423 | } |
8424 | ||
b21a15f6 | 8425 | static void fan_exit(void) |
56b6aeb0 | 8426 | { |
74a60c0f | 8427 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN, |
35ff8b9f | 8428 | "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 8429 | |
b21a15f6 HMH |
8430 | /* FIXME: can we really do this unconditionally? */ |
8431 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
8432 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
8433 | &driver_attr_fan_watchdog); | |
40ca9fdf | 8434 | |
b21a15f6 | 8435 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 8436 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
8437 | } |
8438 | ||
fd3c3a42 | 8439 | static void fan_suspend(void) |
75700e53 | 8440 | { |
0081b162 HMH |
8441 | int rc; |
8442 | ||
75700e53 HMH |
8443 | if (!fan_control_allowed) |
8444 | return; | |
8445 | ||
8446 | /* Store fan status in cache */ | |
0081b162 HMH |
8447 | fan_control_resume_level = 0; |
8448 | rc = fan_get_status_safe(&fan_control_resume_level); | |
8449 | if (rc < 0) | |
0978e012 JP |
8450 | pr_notice("failed to read fan level for later " |
8451 | "restore during resume: %d\n", rc); | |
0081b162 HMH |
8452 | |
8453 | /* if it is undefined, don't attempt to restore it. | |
8454 | * KEEP THIS LAST */ | |
75700e53 | 8455 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 8456 | fan_control_resume_level = 0; |
75700e53 HMH |
8457 | } |
8458 | ||
8459 | static void fan_resume(void) | |
8460 | { | |
75700e53 HMH |
8461 | u8 current_level = 7; |
8462 | bool do_set = false; | |
0081b162 | 8463 | int rc; |
75700e53 HMH |
8464 | |
8465 | /* DSDT *always* updates status on resume */ | |
8466 | tp_features.fan_ctrl_status_undef = 0; | |
8467 | ||
75700e53 | 8468 | if (!fan_control_allowed || |
0081b162 | 8469 | !fan_control_resume_level || |
75700e53 HMH |
8470 | (fan_get_status_safe(¤t_level) < 0)) |
8471 | return; | |
8472 | ||
8473 | switch (fan_control_access_mode) { | |
8474 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
8475 | /* never decrease fan level */ |
8476 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
8477 | break; |
8478 | case TPACPI_FAN_WR_ACPI_FANS: | |
8479 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8480 | /* never decrease fan level, scale is: |
8481 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
8482 | * | |
8483 | * We expect the firmware to set either 7 or AUTO, but we | |
8484 | * handle FULLSPEED out of paranoia. | |
8485 | * | |
8486 | * So, we can safely only restore FULLSPEED or 7, anything | |
8487 | * else could slow the fan. Restoring AUTO is useless, at | |
8488 | * best that's exactly what the DSDT already set (it is the | |
8489 | * slower it uses). | |
8490 | * | |
8491 | * Always keep in mind that the DSDT *will* have set the | |
8492 | * fans to what the vendor supposes is the best level. We | |
8493 | * muck with it only to speed the fan up. | |
8494 | */ | |
8495 | if (fan_control_resume_level != 7 && | |
8496 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
8497 | return; | |
8498 | else | |
8499 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
8500 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
8501 | break; |
8502 | default: | |
8503 | return; | |
8504 | } | |
8505 | if (do_set) { | |
0978e012 JP |
8506 | pr_notice("restoring fan level to 0x%02x\n", |
8507 | fan_control_resume_level); | |
0081b162 HMH |
8508 | rc = fan_set_level_safe(fan_control_resume_level); |
8509 | if (rc < 0) | |
0978e012 | 8510 | pr_notice("failed to restore fan level: %d\n", rc); |
75700e53 HMH |
8511 | } |
8512 | } | |
8513 | ||
887965e6 | 8514 | static int fan_read(struct seq_file *m) |
56b6aeb0 | 8515 | { |
56b6aeb0 HMH |
8516 | int rc; |
8517 | u8 status; | |
8518 | unsigned int speed = 0; | |
8519 | ||
8520 | switch (fan_status_access_mode) { | |
efa27145 | 8521 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 8522 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8523 | rc = fan_get_status_safe(&status); |
8524 | if (rc < 0) | |
56b6aeb0 HMH |
8525 | return rc; |
8526 | ||
887965e6 | 8527 | seq_printf(m, "status:\t\t%s\n" |
56b6aeb0 HMH |
8528 | "level:\t\t%d\n", |
8529 | (status != 0) ? "enabled" : "disabled", status); | |
8530 | break; | |
8531 | ||
efa27145 | 8532 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 8533 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8534 | rc = fan_get_status_safe(&status); |
8535 | if (rc < 0) | |
56b6aeb0 HMH |
8536 | return rc; |
8537 | ||
887965e6 | 8538 | seq_printf(m, "status:\t\t%s\n", |
56b6aeb0 HMH |
8539 | (status != 0) ? "enabled" : "disabled"); |
8540 | ||
35ff8b9f HMH |
8541 | rc = fan_get_speed(&speed); |
8542 | if (rc < 0) | |
56b6aeb0 HMH |
8543 | return rc; |
8544 | ||
887965e6 | 8545 | seq_printf(m, "speed:\t\t%d\n", speed); |
56b6aeb0 | 8546 | |
efa27145 | 8547 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 | 8548 | /* Disengaged mode takes precedence */ |
887965e6 | 8549 | seq_printf(m, "level:\t\tdisengaged\n"); |
efa27145 | 8550 | else if (status & TP_EC_FAN_AUTO) |
887965e6 | 8551 | seq_printf(m, "level:\t\tauto\n"); |
56b6aeb0 | 8552 | else |
887965e6 | 8553 | seq_printf(m, "level:\t\t%d\n", status); |
56b6aeb0 HMH |
8554 | break; |
8555 | ||
efa27145 | 8556 | case TPACPI_FAN_NONE: |
56b6aeb0 | 8557 | default: |
887965e6 | 8558 | seq_printf(m, "status:\t\tnot supported\n"); |
56b6aeb0 HMH |
8559 | } |
8560 | ||
efa27145 | 8561 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
887965e6 | 8562 | seq_printf(m, "commands:\tlevel <level>"); |
56b6aeb0 HMH |
8563 | |
8564 | switch (fan_control_access_mode) { | |
efa27145 | 8565 | case TPACPI_FAN_WR_ACPI_SFAN: |
887965e6 | 8566 | seq_printf(m, " (<level> is 0-7)\n"); |
56b6aeb0 HMH |
8567 | break; |
8568 | ||
8569 | default: | |
887965e6 | 8570 | seq_printf(m, " (<level> is 0-7, " |
fe98a52c | 8571 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
8572 | break; |
8573 | } | |
8574 | } | |
18ad7996 | 8575 | |
efa27145 | 8576 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
887965e6 | 8577 | seq_printf(m, "commands:\tenable, disable\n" |
35ff8b9f HMH |
8578 | "commands:\twatchdog <timeout> (<timeout> " |
8579 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 8580 | |
efa27145 | 8581 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
887965e6 | 8582 | seq_printf(m, "commands:\tspeed <speed>" |
56b6aeb0 HMH |
8583 | " (<speed> is 0-65535)\n"); |
8584 | ||
887965e6 | 8585 | return 0; |
78f81cc4 BD |
8586 | } |
8587 | ||
18ad7996 HMH |
8588 | static int fan_write_cmd_level(const char *cmd, int *rc) |
8589 | { | |
8590 | int level; | |
8591 | ||
a12095c2 | 8592 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 8593 | level = TP_EC_FAN_AUTO; |
fe98a52c | 8594 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 8595 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 8596 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 8597 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
8598 | return 0; |
8599 | ||
35ff8b9f HMH |
8600 | *rc = fan_set_level_safe(level); |
8601 | if (*rc == -ENXIO) | |
0978e012 JP |
8602 | pr_err("level command accepted for unsupported access mode %d\n", |
8603 | fan_control_access_mode); | |
74a60c0f HMH |
8604 | else if (!*rc) |
8605 | tpacpi_disclose_usertask("procfs fan", | |
8606 | "set level to %d\n", level); | |
18ad7996 HMH |
8607 | |
8608 | return 1; | |
8609 | } | |
8610 | ||
8611 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
8612 | { | |
8613 | if (strlencmp(cmd, "enable") != 0) | |
8614 | return 0; | |
8615 | ||
35ff8b9f HMH |
8616 | *rc = fan_set_enable(); |
8617 | if (*rc == -ENXIO) | |
0978e012 JP |
8618 | pr_err("enable command accepted for unsupported access mode %d\n", |
8619 | fan_control_access_mode); | |
74a60c0f HMH |
8620 | else if (!*rc) |
8621 | tpacpi_disclose_usertask("procfs fan", "enable\n"); | |
18ad7996 HMH |
8622 | |
8623 | return 1; | |
8624 | } | |
8625 | ||
8626 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
8627 | { | |
8628 | if (strlencmp(cmd, "disable") != 0) | |
8629 | return 0; | |
8630 | ||
35ff8b9f HMH |
8631 | *rc = fan_set_disable(); |
8632 | if (*rc == -ENXIO) | |
0978e012 JP |
8633 | pr_err("disable command accepted for unsupported access mode %d\n", |
8634 | fan_control_access_mode); | |
74a60c0f HMH |
8635 | else if (!*rc) |
8636 | tpacpi_disclose_usertask("procfs fan", "disable\n"); | |
18ad7996 HMH |
8637 | |
8638 | return 1; | |
8639 | } | |
8640 | ||
8641 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
8642 | { | |
8643 | int speed; | |
8644 | ||
a8b7a662 HMH |
8645 | /* TODO: |
8646 | * Support speed <low> <medium> <high> ? */ | |
8647 | ||
18ad7996 HMH |
8648 | if (sscanf(cmd, "speed %d", &speed) != 1) |
8649 | return 0; | |
8650 | ||
35ff8b9f HMH |
8651 | *rc = fan_set_speed(speed); |
8652 | if (*rc == -ENXIO) | |
0978e012 JP |
8653 | pr_err("speed command accepted for unsupported access mode %d\n", |
8654 | fan_control_access_mode); | |
74a60c0f HMH |
8655 | else if (!*rc) |
8656 | tpacpi_disclose_usertask("procfs fan", | |
8657 | "set speed to %d\n", speed); | |
18ad7996 HMH |
8658 | |
8659 | return 1; | |
8660 | } | |
8661 | ||
16663a87 HMH |
8662 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
8663 | { | |
8664 | int interval; | |
8665 | ||
8666 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
8667 | return 0; | |
8668 | ||
8669 | if (interval < 0 || interval > 120) | |
8670 | *rc = -EINVAL; | |
74a60c0f | 8671 | else { |
16663a87 | 8672 | fan_watchdog_maxinterval = interval; |
74a60c0f HMH |
8673 | tpacpi_disclose_usertask("procfs fan", |
8674 | "set watchdog timer to %d\n", | |
8675 | interval); | |
8676 | } | |
16663a87 HMH |
8677 | |
8678 | return 1; | |
8679 | } | |
8680 | ||
18ad7996 HMH |
8681 | static int fan_write(char *buf) |
8682 | { | |
8683 | char *cmd; | |
8684 | int rc = 0; | |
8685 | ||
8686 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 8687 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 8688 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 8689 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 8690 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
8691 | fan_write_cmd_disable(cmd, &rc) || |
8692 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 8693 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
8694 | fan_write_cmd_speed(cmd, &rc)) |
8695 | ) | |
8696 | rc = -EINVAL; | |
16663a87 HMH |
8697 | else if (!rc) |
8698 | fan_watchdog_reset(); | |
18ad7996 HMH |
8699 | } |
8700 | ||
8701 | return rc; | |
8702 | } | |
8703 | ||
a5763f22 HMH |
8704 | static struct ibm_struct fan_driver_data = { |
8705 | .name = "fan", | |
8706 | .read = fan_read, | |
8707 | .write = fan_write, | |
8708 | .exit = fan_exit, | |
75700e53 HMH |
8709 | .suspend = fan_suspend, |
8710 | .resume = fan_resume, | |
a5763f22 HMH |
8711 | }; |
8712 | ||
420f9739 DH |
8713 | /************************************************************************* |
8714 | * Mute LED subdriver | |
8715 | */ | |
8716 | ||
8717 | ||
8718 | struct tp_led_table { | |
8719 | acpi_string name; | |
8720 | int on_value; | |
8721 | int off_value; | |
8722 | int state; | |
8723 | }; | |
8724 | ||
8725 | static struct tp_led_table led_tables[] = { | |
8726 | [TPACPI_LED_MUTE] = { | |
8727 | .name = "SSMS", | |
8728 | .on_value = 1, | |
8729 | .off_value = 0, | |
8730 | }, | |
8731 | [TPACPI_LED_MICMUTE] = { | |
8732 | .name = "MMTS", | |
8733 | .on_value = 2, | |
8734 | .off_value = 0, | |
8735 | }, | |
8736 | }; | |
8737 | ||
8738 | static int mute_led_on_off(struct tp_led_table *t, bool state) | |
8739 | { | |
8740 | acpi_handle temp; | |
8741 | int output; | |
8742 | ||
8743 | if (!ACPI_SUCCESS(acpi_get_handle(hkey_handle, t->name, &temp))) { | |
8744 | pr_warn("Thinkpad ACPI has no %s interface.\n", t->name); | |
8745 | return -EIO; | |
8746 | } | |
8747 | ||
8748 | if (!acpi_evalf(hkey_handle, &output, t->name, "dd", | |
8749 | state ? t->on_value : t->off_value)) | |
8750 | return -EIO; | |
8751 | ||
8752 | t->state = state; | |
8753 | return state; | |
8754 | } | |
8755 | ||
8756 | int tpacpi_led_set(int whichled, bool on) | |
8757 | { | |
8758 | struct tp_led_table *t; | |
8759 | ||
8760 | if (whichled < 0 || whichled >= TPACPI_LED_MAX) | |
8761 | return -EINVAL; | |
8762 | ||
8763 | t = &led_tables[whichled]; | |
8764 | if (t->state < 0 || t->state == on) | |
8765 | return t->state; | |
8766 | return mute_led_on_off(t, on); | |
8767 | } | |
8768 | EXPORT_SYMBOL_GPL(tpacpi_led_set); | |
8769 | ||
8770 | static int mute_led_init(struct ibm_init_struct *iibm) | |
8771 | { | |
8772 | acpi_handle temp; | |
8773 | int i; | |
8774 | ||
8775 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
8776 | struct tp_led_table *t = &led_tables[i]; | |
8777 | if (ACPI_SUCCESS(acpi_get_handle(hkey_handle, t->name, &temp))) | |
8778 | mute_led_on_off(t, false); | |
8779 | else | |
8780 | t->state = -ENODEV; | |
8781 | } | |
8782 | return 0; | |
8783 | } | |
8784 | ||
8785 | static void mute_led_exit(void) | |
8786 | { | |
8787 | int i; | |
8788 | ||
8789 | for (i = 0; i < TPACPI_LED_MAX; i++) | |
8790 | tpacpi_led_set(i, false); | |
8791 | } | |
8792 | ||
119f4498 TI |
8793 | static void mute_led_resume(void) |
8794 | { | |
8795 | int i; | |
8796 | ||
8797 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
8798 | struct tp_led_table *t = &led_tables[i]; | |
8799 | if (t->state >= 0) | |
8800 | mute_led_on_off(t, t->state); | |
8801 | } | |
8802 | } | |
8803 | ||
420f9739 DH |
8804 | static struct ibm_struct mute_led_driver_data = { |
8805 | .name = "mute_led", | |
8806 | .exit = mute_led_exit, | |
119f4498 | 8807 | .resume = mute_led_resume, |
420f9739 DH |
8808 | }; |
8809 | ||
56b6aeb0 HMH |
8810 | /**************************************************************************** |
8811 | **************************************************************************** | |
8812 | * | |
8813 | * Infrastructure | |
8814 | * | |
8815 | **************************************************************************** | |
8816 | ****************************************************************************/ | |
8817 | ||
8b468c0c HMH |
8818 | /* |
8819 | * HKEY event callout for other subdrivers go here | |
8820 | * (yes, it is ugly, but it is quick, safe, and gets the job done | |
8821 | */ | |
8822 | static void tpacpi_driver_event(const unsigned int hkey_event) | |
8823 | { | |
347a2686 HMH |
8824 | if (ibm_backlight_device) { |
8825 | switch (hkey_event) { | |
8826 | case TP_HKEY_EV_BRGHT_UP: | |
8827 | case TP_HKEY_EV_BRGHT_DOWN: | |
8828 | tpacpi_brightness_notify_change(); | |
8829 | } | |
8830 | } | |
0d204c34 HMH |
8831 | if (alsa_card) { |
8832 | switch (hkey_event) { | |
8833 | case TP_HKEY_EV_VOL_UP: | |
8834 | case TP_HKEY_EV_VOL_DOWN: | |
8835 | case TP_HKEY_EV_VOL_MUTE: | |
8836 | volume_alsa_notify_change(); | |
8837 | } | |
8838 | } | |
8b468c0c HMH |
8839 | } |
8840 | ||
8b468c0c HMH |
8841 | static void hotkey_driver_event(const unsigned int scancode) |
8842 | { | |
67bcae6e | 8843 | tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); |
8b468c0c HMH |
8844 | } |
8845 | ||
7fd40029 HMH |
8846 | /* sysfs name ---------------------------------------------------------- */ |
8847 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
8848 | struct device_attribute *attr, | |
8849 | char *buf) | |
8850 | { | |
e0c7dfe7 | 8851 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
8852 | } |
8853 | ||
5fb73bc2 | 8854 | static DEVICE_ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); |
7fd40029 HMH |
8855 | |
8856 | /* --------------------------------------------------------------------- */ | |
8857 | ||
56b6aeb0 | 8858 | /* /proc support */ |
94954cc6 | 8859 | static struct proc_dir_entry *proc_dir; |
16663a87 | 8860 | |
56b6aeb0 HMH |
8861 | /* |
8862 | * Module and infrastructure proble, init and exit handling | |
8863 | */ | |
1da177e4 | 8864 | |
90ab5ee9 | 8865 | static bool force_load; |
b21a15f6 | 8866 | |
fe08bc4b | 8867 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 8868 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 8869 | { |
a5763f22 | 8870 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 8871 | |
72a979f0 | 8872 | return (is_supported) ? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
8873 | } |
8874 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
8875 | ||
b21a15f6 HMH |
8876 | static void ibm_exit(struct ibm_struct *ibm) |
8877 | { | |
8878 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
8879 | ||
8880 | list_del_init(&ibm->all_drivers); | |
8881 | ||
8882 | if (ibm->flags.acpi_notify_installed) { | |
8883 | dbg_printk(TPACPI_DBG_EXIT, | |
8884 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8885 | BUG_ON(!ibm->acpi); | |
8886 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
8887 | ibm->acpi->type, | |
8888 | dispatch_acpi_notify); | |
8889 | ibm->flags.acpi_notify_installed = 0; | |
b21a15f6 HMH |
8890 | } |
8891 | ||
8892 | if (ibm->flags.proc_created) { | |
8893 | dbg_printk(TPACPI_DBG_EXIT, | |
8894 | "%s: remove_proc_entry\n", ibm->name); | |
8895 | remove_proc_entry(ibm->name, proc_dir); | |
8896 | ibm->flags.proc_created = 0; | |
8897 | } | |
8898 | ||
8899 | if (ibm->flags.acpi_driver_registered) { | |
8900 | dbg_printk(TPACPI_DBG_EXIT, | |
8901 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8902 | BUG_ON(!ibm->acpi); | |
8903 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
8904 | kfree(ibm->acpi->driver); | |
8905 | ibm->acpi->driver = NULL; | |
8906 | ibm->flags.acpi_driver_registered = 0; | |
8907 | } | |
8908 | ||
8909 | if (ibm->flags.init_called && ibm->exit) { | |
8910 | ibm->exit(); | |
8911 | ibm->flags.init_called = 0; | |
8912 | } | |
8913 | ||
8914 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
8915 | } | |
f74a27d4 | 8916 | |
a5763f22 | 8917 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
8918 | { |
8919 | int ret; | |
a5763f22 | 8920 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
8921 | struct proc_dir_entry *entry; |
8922 | ||
a5763f22 HMH |
8923 | BUG_ON(ibm == NULL); |
8924 | ||
8925 | INIT_LIST_HEAD(&ibm->all_drivers); | |
8926 | ||
92641177 | 8927 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
8928 | return 0; |
8929 | ||
fe08bc4b HMH |
8930 | dbg_printk(TPACPI_DBG_INIT, |
8931 | "probing for %s\n", ibm->name); | |
8932 | ||
a5763f22 HMH |
8933 | if (iibm->init) { |
8934 | ret = iibm->init(iibm); | |
5fba344c HMH |
8935 | if (ret > 0) |
8936 | return 0; /* probe failed */ | |
8937 | if (ret) | |
1da177e4 | 8938 | return ret; |
a5763f22 | 8939 | |
92641177 | 8940 | ibm->flags.init_called = 1; |
1da177e4 LT |
8941 | } |
8942 | ||
8d376cd6 HMH |
8943 | if (ibm->acpi) { |
8944 | if (ibm->acpi->hid) { | |
8945 | ret = register_tpacpi_subdriver(ibm); | |
8946 | if (ret) | |
8947 | goto err_out; | |
8948 | } | |
5fba344c | 8949 | |
8d376cd6 HMH |
8950 | if (ibm->acpi->notify) { |
8951 | ret = setup_acpi_notify(ibm); | |
8952 | if (ret == -ENODEV) { | |
0978e012 JP |
8953 | pr_notice("disabling subdriver %s\n", |
8954 | ibm->name); | |
8d376cd6 HMH |
8955 | ret = 0; |
8956 | goto err_out; | |
8957 | } | |
8958 | if (ret < 0) | |
8959 | goto err_out; | |
5fba344c | 8960 | } |
5fba344c HMH |
8961 | } |
8962 | ||
fe08bc4b HMH |
8963 | dbg_printk(TPACPI_DBG_INIT, |
8964 | "%s installed\n", ibm->name); | |
8965 | ||
78f81cc4 | 8966 | if (ibm->read) { |
d161a13f | 8967 | umode_t mode = iibm->base_procfs_mode; |
887965e6 | 8968 | |
b525c06c HMH |
8969 | if (!mode) |
8970 | mode = S_IRUGO; | |
887965e6 AD |
8971 | if (ibm->write) |
8972 | mode |= S_IWUSR; | |
8973 | entry = proc_create_data(ibm->name, mode, proc_dir, | |
8974 | &dispatch_proc_fops, ibm); | |
78f81cc4 | 8975 | if (!entry) { |
0978e012 | 8976 | pr_err("unable to create proc entry %s\n", ibm->name); |
5fba344c HMH |
8977 | ret = -ENODEV; |
8978 | goto err_out; | |
78f81cc4 | 8979 | } |
92641177 | 8980 | ibm->flags.proc_created = 1; |
78f81cc4 | 8981 | } |
1da177e4 | 8982 | |
a5763f22 HMH |
8983 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
8984 | ||
1da177e4 | 8985 | return 0; |
5fba344c HMH |
8986 | |
8987 | err_out: | |
fe08bc4b HMH |
8988 | dbg_printk(TPACPI_DBG_INIT, |
8989 | "%s: at error exit path with result %d\n", | |
8990 | ibm->name, ret); | |
8991 | ||
5fba344c | 8992 | ibm_exit(ibm); |
72a979f0 | 8993 | return (ret < 0) ? ret : 0; |
1da177e4 LT |
8994 | } |
8995 | ||
56b6aeb0 HMH |
8996 | /* Probing */ |
8997 | ||
050df107 HMH |
8998 | static bool __pure __init tpacpi_is_fw_digit(const char c) |
8999 | { | |
9000 | return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z'); | |
9001 | } | |
9002 | ||
72a979f0 | 9003 | static bool __pure __init tpacpi_is_valid_fw_id(const char * const s, |
050df107 HMH |
9004 | const char t) |
9005 | { | |
1b0eb5bc AL |
9006 | /* |
9007 | * Most models: xxyTkkWW (#.##c) | |
9008 | * Ancient 570/600 and -SL lacks (#.##c) | |
9009 | */ | |
9010 | if (s && strlen(s) >= 8 && | |
050df107 HMH |
9011 | tpacpi_is_fw_digit(s[0]) && |
9012 | tpacpi_is_fw_digit(s[1]) && | |
16a3d9f5 MI |
9013 | s[2] == t && |
9014 | (s[3] == 'T' || s[3] == 'N') && | |
050df107 | 9015 | tpacpi_is_fw_digit(s[4]) && |
1b0eb5bc AL |
9016 | tpacpi_is_fw_digit(s[5])) |
9017 | return true; | |
9018 | ||
9019 | /* New models: xxxyTkkW (#.##c); T550 and some others */ | |
9020 | return s && strlen(s) >= 8 && | |
9021 | tpacpi_is_fw_digit(s[0]) && | |
9022 | tpacpi_is_fw_digit(s[1]) && | |
9023 | tpacpi_is_fw_digit(s[2]) && | |
9024 | s[3] == t && | |
9025 | (s[4] == 'T' || s[4] == 'N') && | |
9026 | tpacpi_is_fw_digit(s[5]) && | |
9027 | tpacpi_is_fw_digit(s[6]); | |
050df107 HMH |
9028 | } |
9029 | ||
bf20e740 HMH |
9030 | /* returns 0 - probe ok, or < 0 - probe error. |
9031 | * Probe ok doesn't mean thinkpad found. | |
9032 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
9033 | static int __must_check __init get_thinkpad_model_data( | |
9034 | struct thinkpad_id_data *tp) | |
1da177e4 | 9035 | { |
1855256c | 9036 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 9037 | char ec_fw_string[18]; |
bf20e740 | 9038 | char const *s; |
1da177e4 | 9039 | |
d5a2f2f1 | 9040 | if (!tp) |
bf20e740 | 9041 | return -EINVAL; |
d5a2f2f1 HMH |
9042 | |
9043 | memset(tp, 0, sizeof(*tp)); | |
9044 | ||
9045 | if (dmi_name_in_vendors("IBM")) | |
9046 | tp->vendor = PCI_VENDOR_ID_IBM; | |
9047 | else if (dmi_name_in_vendors("LENOVO")) | |
9048 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
9049 | else | |
bf20e740 | 9050 | return 0; |
d5a2f2f1 | 9051 | |
bf20e740 HMH |
9052 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
9053 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
9054 | if (s && !tp->bios_version_str) | |
9055 | return -ENOMEM; | |
050df107 HMH |
9056 | |
9057 | /* Really ancient ThinkPad 240X will fail this, which is fine */ | |
16a3d9f5 MI |
9058 | if (!(tpacpi_is_valid_fw_id(tp->bios_version_str, 'E') || |
9059 | tpacpi_is_valid_fw_id(tp->bios_version_str, 'C'))) | |
bf20e740 | 9060 | return 0; |
050df107 | 9061 | |
d5a2f2f1 HMH |
9062 | tp->bios_model = tp->bios_version_str[0] |
9063 | | (tp->bios_version_str[1] << 8); | |
050df107 HMH |
9064 | tp->bios_release = (tp->bios_version_str[4] << 8) |
9065 | | tp->bios_version_str[5]; | |
d5a2f2f1 | 9066 | |
56b6aeb0 HMH |
9067 | /* |
9068 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
9069 | * X32 or newer, all Z series; Some models must have an | |
9070 | * up-to-date BIOS or they will not be detected. | |
9071 | * | |
9072 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
9073 | */ | |
9074 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
9075 | if (sscanf(dev->name, | |
9076 | "IBM ThinkPad Embedded Controller -[%17c", | |
9077 | ec_fw_string) == 1) { | |
9078 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
9079 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
9080 | |
9081 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
bf20e740 HMH |
9082 | if (!tp->ec_version_str) |
9083 | return -ENOMEM; | |
050df107 HMH |
9084 | |
9085 | if (tpacpi_is_valid_fw_id(ec_fw_string, 'H')) { | |
9086 | tp->ec_model = ec_fw_string[0] | |
9087 | | (ec_fw_string[1] << 8); | |
9088 | tp->ec_release = (ec_fw_string[4] << 8) | |
9089 | | ec_fw_string[5]; | |
9090 | } else { | |
0978e012 JP |
9091 | pr_notice("ThinkPad firmware release %s " |
9092 | "doesn't match the known patterns\n", | |
9093 | ec_fw_string); | |
9094 | pr_notice("please report this to %s\n", | |
9095 | TPACPI_MAIL); | |
050df107 | 9096 | } |
d5a2f2f1 | 9097 | break; |
78f81cc4 | 9098 | } |
1da177e4 | 9099 | } |
d5a2f2f1 | 9100 | |
bf20e740 | 9101 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
40f5c777 | 9102 | if (s && !(strncasecmp(s, "ThinkPad", 8) && strncasecmp(s, "Lenovo", 6))) { |
bf20e740 HMH |
9103 | tp->model_str = kstrdup(s, GFP_KERNEL); |
9104 | if (!tp->model_str) | |
9105 | return -ENOMEM; | |
a4f46bb9 MI |
9106 | } else { |
9107 | s = dmi_get_system_info(DMI_BIOS_VENDOR); | |
40f5c777 | 9108 | if (s && !(strncasecmp(s, "Lenovo", 6))) { |
a4f46bb9 MI |
9109 | tp->model_str = kstrdup(s, GFP_KERNEL); |
9110 | if (!tp->model_str) | |
9111 | return -ENOMEM; | |
9112 | } | |
d5a2f2f1 | 9113 | } |
8c74adbc | 9114 | |
bf20e740 HMH |
9115 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
9116 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
9117 | if (s && !tp->nummodel_str) | |
9118 | return -ENOMEM; | |
9119 | ||
9120 | return 0; | |
1da177e4 LT |
9121 | } |
9122 | ||
5fba344c HMH |
9123 | static int __init probe_for_thinkpad(void) |
9124 | { | |
9125 | int is_thinkpad; | |
9126 | ||
9127 | if (acpi_disabled) | |
9128 | return -ENODEV; | |
9129 | ||
e28393c0 HMH |
9130 | /* It would be dangerous to run the driver in this case */ |
9131 | if (!tpacpi_is_ibm() && !tpacpi_is_lenovo()) | |
9132 | return -ENODEV; | |
9133 | ||
5fba344c HMH |
9134 | /* |
9135 | * Non-ancient models have better DMI tagging, but very old models | |
e675abaf | 9136 | * don't. tpacpi_is_fw_known() is a cheat to help in that case. |
5fba344c | 9137 | */ |
e675abaf HMH |
9138 | is_thinkpad = (thinkpad_id.model_str != NULL) || |
9139 | (thinkpad_id.ec_model != 0) || | |
9140 | tpacpi_is_fw_known(); | |
5fba344c | 9141 | |
437e470c HMH |
9142 | /* The EC handler is required */ |
9143 | tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle); | |
5fba344c HMH |
9144 | if (!ec_handle) { |
9145 | if (is_thinkpad) | |
0978e012 | 9146 | pr_err("Not yet supported ThinkPad detected!\n"); |
5fba344c HMH |
9147 | return -ENODEV; |
9148 | } | |
9149 | ||
0dcef77c HMH |
9150 | if (!is_thinkpad && !force_load) |
9151 | return -ENODEV; | |
9152 | ||
5fba344c HMH |
9153 | return 0; |
9154 | } | |
9155 | ||
7a43f788 HMH |
9156 | static void __init thinkpad_acpi_init_banner(void) |
9157 | { | |
0978e012 JP |
9158 | pr_info("%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
9159 | pr_info("%s\n", TPACPI_URL); | |
7a43f788 | 9160 | |
0978e012 | 9161 | pr_info("ThinkPad BIOS %s, EC %s\n", |
7a43f788 HMH |
9162 | (thinkpad_id.bios_version_str) ? |
9163 | thinkpad_id.bios_version_str : "unknown", | |
9164 | (thinkpad_id.ec_version_str) ? | |
9165 | thinkpad_id.ec_version_str : "unknown"); | |
9166 | ||
9167 | BUG_ON(!thinkpad_id.vendor); | |
9168 | ||
9169 | if (thinkpad_id.model_str) | |
0978e012 | 9170 | pr_info("%s %s, model %s\n", |
7a43f788 HMH |
9171 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
9172 | "IBM" : ((thinkpad_id.vendor == | |
9173 | PCI_VENDOR_ID_LENOVO) ? | |
9174 | "Lenovo" : "Unknown vendor"), | |
9175 | thinkpad_id.model_str, | |
9176 | (thinkpad_id.nummodel_str) ? | |
9177 | thinkpad_id.nummodel_str : "unknown"); | |
9178 | } | |
5fba344c | 9179 | |
56b6aeb0 | 9180 | /* Module init, exit, parameters */ |
1da177e4 | 9181 | |
a5763f22 HMH |
9182 | static struct ibm_init_struct ibms_init[] __initdata = { |
9183 | { | |
a5763f22 HMH |
9184 | .data = &thinkpad_acpi_driver_data, |
9185 | }, | |
9186 | { | |
9187 | .init = hotkey_init, | |
9188 | .data = &hotkey_driver_data, | |
9189 | }, | |
9190 | { | |
9191 | .init = bluetooth_init, | |
9192 | .data = &bluetooth_driver_data, | |
9193 | }, | |
9194 | { | |
9195 | .init = wan_init, | |
9196 | .data = &wan_driver_data, | |
9197 | }, | |
0045c0aa HMH |
9198 | { |
9199 | .init = uwb_init, | |
9200 | .data = &uwb_driver_data, | |
9201 | }, | |
d7c1d17d | 9202 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
9203 | { |
9204 | .init = video_init, | |
b525c06c | 9205 | .base_procfs_mode = S_IRUSR, |
a5763f22 HMH |
9206 | .data = &video_driver_data, |
9207 | }, | |
d7c1d17d | 9208 | #endif |
a5763f22 HMH |
9209 | { |
9210 | .init = light_init, | |
9211 | .data = &light_driver_data, | |
9212 | }, | |
a5763f22 HMH |
9213 | { |
9214 | .init = cmos_init, | |
9215 | .data = &cmos_driver_data, | |
9216 | }, | |
9217 | { | |
9218 | .init = led_init, | |
9219 | .data = &led_driver_data, | |
9220 | }, | |
9221 | { | |
9222 | .init = beep_init, | |
9223 | .data = &beep_driver_data, | |
9224 | }, | |
9225 | { | |
9226 | .init = thermal_init, | |
9227 | .data = &thermal_driver_data, | |
9228 | }, | |
a5763f22 HMH |
9229 | { |
9230 | .init = brightness_init, | |
9231 | .data = &brightness_driver_data, | |
9232 | }, | |
9233 | { | |
329e4e18 | 9234 | .init = volume_init, |
a5763f22 HMH |
9235 | .data = &volume_driver_data, |
9236 | }, | |
9237 | { | |
9238 | .init = fan_init, | |
9239 | .data = &fan_driver_data, | |
9240 | }, | |
420f9739 DH |
9241 | { |
9242 | .init = mute_led_init, | |
9243 | .data = &mute_led_driver_data, | |
9244 | }, | |
a5763f22 HMH |
9245 | }; |
9246 | ||
3945ac36 | 9247 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
9248 | { |
9249 | unsigned int i; | |
a5763f22 | 9250 | struct ibm_struct *ibm; |
1da177e4 | 9251 | |
59f91ff1 HMH |
9252 | if (!kp || !kp->name || !val) |
9253 | return -EINVAL; | |
9254 | ||
a5763f22 HMH |
9255 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
9256 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
9257 | WARN_ON(ibm == NULL); |
9258 | ||
9259 | if (!ibm || !ibm->name) | |
9260 | continue; | |
a5763f22 HMH |
9261 | |
9262 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
9263 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 9264 | return -ENOSPC; |
a5763f22 HMH |
9265 | strcpy(ibms_init[i].param, val); |
9266 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
9267 | return 0; |
9268 | } | |
a5763f22 | 9269 | } |
1da177e4 | 9270 | |
1da177e4 LT |
9271 | return -EINVAL; |
9272 | } | |
9273 | ||
b09c7225 | 9274 | module_param(experimental, int, 0444); |
f68080f8 | 9275 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 9276 | "Enables experimental features when non-zero"); |
56b6aeb0 | 9277 | |
132ce091 | 9278 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 9279 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 9280 | |
b09c7225 | 9281 | module_param(force_load, bool, 0444); |
f68080f8 | 9282 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
9283 | "Attempts to load the driver even on a " |
9284 | "mis-identified ThinkPad when true"); | |
0dcef77c | 9285 | |
b09c7225 | 9286 | module_param_named(fan_control, fan_control_allowed, bool, 0444); |
f68080f8 | 9287 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 9288 | "Enables setting fan parameters features when true"); |
ecf2a80a | 9289 | |
b09c7225 | 9290 | module_param_named(brightness_mode, brightness_mode, uint, 0444); |
f68080f8 | 9291 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f | 9292 | "Selects brightness control strategy: " |
0e501834 | 9293 | "0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); |
24d3b774 | 9294 | |
b09c7225 | 9295 | module_param(brightness_enable, uint, 0444); |
f68080f8 | 9296 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 9297 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 9298 | |
ff850c33 | 9299 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
329e4e18 HMH |
9300 | module_param_named(volume_mode, volume_mode, uint, 0444); |
9301 | MODULE_PARM_DESC(volume_mode, | |
9302 | "Selects volume control strategy: " | |
9303 | "0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); | |
9304 | ||
a112ceee HMH |
9305 | module_param_named(volume_capabilities, volume_capabilities, uint, 0444); |
9306 | MODULE_PARM_DESC(volume_capabilities, | |
9307 | "Selects the mixer capabilites: " | |
9308 | "0=auto, 1=volume and mute, 2=mute only"); | |
9309 | ||
c7ac6291 HMH |
9310 | module_param_named(volume_control, volume_control_allowed, bool, 0444); |
9311 | MODULE_PARM_DESC(volume_control, | |
9312 | "Enables software override for the console audio " | |
9313 | "control when true"); | |
9314 | ||
9a417ec0 AL |
9315 | module_param_named(software_mute, software_mute_requested, bool, 0444); |
9316 | MODULE_PARM_DESC(software_mute, | |
9317 | "Request full software mute control"); | |
9318 | ||
0d204c34 HMH |
9319 | /* ALSA module API parameters */ |
9320 | module_param_named(index, alsa_index, int, 0444); | |
9321 | MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer"); | |
9322 | module_param_named(id, alsa_id, charp, 0444); | |
9323 | MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer"); | |
9324 | module_param_named(enable, alsa_enable, bool, 0444); | |
9325 | MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); | |
ff850c33 | 9326 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
0d204c34 | 9327 | |
e0c7dfe7 | 9328 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 9329 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 9330 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 9331 | "at module load, see documentation") |
1da177e4 | 9332 | |
e0c7dfe7 HMH |
9333 | TPACPI_PARAM(hotkey); |
9334 | TPACPI_PARAM(bluetooth); | |
9335 | TPACPI_PARAM(video); | |
9336 | TPACPI_PARAM(light); | |
e0c7dfe7 HMH |
9337 | TPACPI_PARAM(cmos); |
9338 | TPACPI_PARAM(led); | |
9339 | TPACPI_PARAM(beep); | |
e0c7dfe7 HMH |
9340 | TPACPI_PARAM(brightness); |
9341 | TPACPI_PARAM(volume); | |
9342 | TPACPI_PARAM(fan); | |
78f81cc4 | 9343 | |
a73f3091 | 9344 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
b09c7225 | 9345 | module_param(dbg_wlswemul, uint, 0444); |
a73f3091 HMH |
9346 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); |
9347 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
9348 | MODULE_PARM_DESC(wlsw_state, | |
9349 | "Initial state of the emulated WLSW switch"); | |
9350 | ||
b09c7225 | 9351 | module_param(dbg_bluetoothemul, uint, 0444); |
a73f3091 HMH |
9352 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); |
9353 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
9354 | MODULE_PARM_DESC(bluetooth_state, | |
9355 | "Initial state of the emulated bluetooth switch"); | |
9356 | ||
b09c7225 | 9357 | module_param(dbg_wwanemul, uint, 0444); |
a73f3091 HMH |
9358 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); |
9359 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
9360 | MODULE_PARM_DESC(wwan_state, | |
9361 | "Initial state of the emulated WWAN switch"); | |
0045c0aa | 9362 | |
b09c7225 | 9363 | module_param(dbg_uwbemul, uint, 0444); |
0045c0aa HMH |
9364 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); |
9365 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); | |
9366 | MODULE_PARM_DESC(uwb_state, | |
9367 | "Initial state of the emulated UWB switch"); | |
a73f3091 HMH |
9368 | #endif |
9369 | ||
b21a15f6 HMH |
9370 | static void thinkpad_acpi_module_exit(void) |
9371 | { | |
9372 | struct ibm_struct *ibm, *itmp; | |
9373 | ||
9374 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
9375 | ||
9376 | list_for_each_entry_safe_reverse(ibm, itmp, | |
9377 | &tpacpi_all_drivers, | |
9378 | all_drivers) { | |
9379 | ibm_exit(ibm); | |
9380 | } | |
9381 | ||
9382 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
9383 | ||
9384 | if (tpacpi_inputdev) { | |
9385 | if (tp_features.input_device_registered) | |
9386 | input_unregister_device(tpacpi_inputdev); | |
9387 | else | |
9388 | input_free_device(tpacpi_inputdev); | |
00d39597 | 9389 | kfree(hotkey_keycode_map); |
b21a15f6 HMH |
9390 | } |
9391 | ||
9392 | if (tpacpi_hwmon) | |
9393 | hwmon_device_unregister(tpacpi_hwmon); | |
9394 | ||
9395 | if (tp_features.sensors_pdev_attrs_registered) | |
5fb73bc2 | 9396 | device_remove_file(&tpacpi_sensors_pdev->dev, &dev_attr_name); |
b21a15f6 HMH |
9397 | if (tpacpi_sensors_pdev) |
9398 | platform_device_unregister(tpacpi_sensors_pdev); | |
9399 | if (tpacpi_pdev) | |
9400 | platform_device_unregister(tpacpi_pdev); | |
9401 | ||
9402 | if (tp_features.sensors_pdrv_attrs_registered) | |
9403 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
9404 | if (tp_features.platform_drv_attrs_registered) | |
9405 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
9406 | ||
9407 | if (tp_features.sensors_pdrv_registered) | |
9408 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
9409 | ||
9410 | if (tp_features.platform_drv_registered) | |
9411 | platform_driver_unregister(&tpacpi_pdriver); | |
9412 | ||
9413 | if (proc_dir) | |
e0c7dfe7 | 9414 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 9415 | |
e0e3c061 HMH |
9416 | if (tpacpi_wq) |
9417 | destroy_workqueue(tpacpi_wq); | |
9418 | ||
b21a15f6 HMH |
9419 | kfree(thinkpad_id.bios_version_str); |
9420 | kfree(thinkpad_id.ec_version_str); | |
9421 | kfree(thinkpad_id.model_str); | |
d2be15bd | 9422 | kfree(thinkpad_id.nummodel_str); |
b21a15f6 HMH |
9423 | } |
9424 | ||
f74a27d4 | 9425 | |
1def7115 | 9426 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
9427 | { |
9428 | int ret, i; | |
9429 | ||
8fef502e HMH |
9430 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
9431 | ||
54ae1501 | 9432 | /* Driver-level probe */ |
d5a2f2f1 | 9433 | |
bf20e740 HMH |
9434 | ret = get_thinkpad_model_data(&thinkpad_id); |
9435 | if (ret) { | |
0978e012 | 9436 | pr_err("unable to get DMI data: %d\n", ret); |
bf20e740 HMH |
9437 | thinkpad_acpi_module_exit(); |
9438 | return ret; | |
9439 | } | |
5fba344c | 9440 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
9441 | if (ret) { |
9442 | thinkpad_acpi_module_exit(); | |
5fba344c | 9443 | return ret; |
d5a2f2f1 | 9444 | } |
1da177e4 | 9445 | |
54ae1501 | 9446 | /* Driver initialization */ |
d5a2f2f1 | 9447 | |
7a43f788 HMH |
9448 | thinkpad_acpi_init_banner(); |
9449 | tpacpi_check_outdated_fw(); | |
9450 | ||
e0c7dfe7 HMH |
9451 | TPACPI_ACPIHANDLE_INIT(ecrd); |
9452 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 9453 | |
e0e3c061 HMH |
9454 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
9455 | if (!tpacpi_wq) { | |
9456 | thinkpad_acpi_module_exit(); | |
9457 | return -ENOMEM; | |
9458 | } | |
9459 | ||
e0c7dfe7 | 9460 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 9461 | if (!proc_dir) { |
0978e012 | 9462 | pr_err("unable to create proc dir " TPACPI_PROC_DIR "\n"); |
1def7115 | 9463 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9464 | return -ENODEV; |
9465 | } | |
78f81cc4 | 9466 | |
54ae1501 HMH |
9467 | ret = platform_driver_register(&tpacpi_pdriver); |
9468 | if (ret) { | |
0978e012 | 9469 | pr_err("unable to register main platform driver\n"); |
54ae1501 HMH |
9470 | thinkpad_acpi_module_exit(); |
9471 | return ret; | |
9472 | } | |
ac36393d HMH |
9473 | tp_features.platform_drv_registered = 1; |
9474 | ||
7fd40029 HMH |
9475 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
9476 | if (ret) { | |
0978e012 | 9477 | pr_err("unable to register hwmon platform driver\n"); |
7fd40029 HMH |
9478 | thinkpad_acpi_module_exit(); |
9479 | return ret; | |
9480 | } | |
9481 | tp_features.sensors_pdrv_registered = 1; | |
9482 | ||
176750d6 | 9483 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
9484 | if (!ret) { |
9485 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
9486 | ret = tpacpi_create_driver_attributes( |
9487 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 9488 | } |
176750d6 | 9489 | if (ret) { |
0978e012 | 9490 | pr_err("unable to create sysfs driver attributes\n"); |
176750d6 HMH |
9491 | thinkpad_acpi_module_exit(); |
9492 | return ret; | |
9493 | } | |
2369cc94 | 9494 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 9495 | |
54ae1501 HMH |
9496 | |
9497 | /* Device initialization */ | |
e0c7dfe7 | 9498 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
9499 | NULL, 0); |
9500 | if (IS_ERR(tpacpi_pdev)) { | |
9501 | ret = PTR_ERR(tpacpi_pdev); | |
9502 | tpacpi_pdev = NULL; | |
0978e012 | 9503 | pr_err("unable to register platform device\n"); |
54ae1501 HMH |
9504 | thinkpad_acpi_module_exit(); |
9505 | return ret; | |
9506 | } | |
7fd40029 | 9507 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
9508 | TPACPI_HWMON_DRVR_NAME, |
9509 | -1, NULL, 0); | |
7fd40029 HMH |
9510 | if (IS_ERR(tpacpi_sensors_pdev)) { |
9511 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
9512 | tpacpi_sensors_pdev = NULL; | |
0978e012 | 9513 | pr_err("unable to register hwmon platform device\n"); |
7fd40029 HMH |
9514 | thinkpad_acpi_module_exit(); |
9515 | return ret; | |
9516 | } | |
5fb73bc2 | 9517 | ret = device_create_file(&tpacpi_sensors_pdev->dev, &dev_attr_name); |
7fd40029 | 9518 | if (ret) { |
0978e012 | 9519 | pr_err("unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
9520 | thinkpad_acpi_module_exit(); |
9521 | return ret; | |
9522 | } | |
9523 | tp_features.sensors_pdev_attrs_registered = 1; | |
9524 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
9525 | if (IS_ERR(tpacpi_hwmon)) { |
9526 | ret = PTR_ERR(tpacpi_hwmon); | |
9527 | tpacpi_hwmon = NULL; | |
0978e012 | 9528 | pr_err("unable to register hwmon device\n"); |
54ae1501 HMH |
9529 | thinkpad_acpi_module_exit(); |
9530 | return ret; | |
9531 | } | |
8523ed6f | 9532 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
9533 | tpacpi_inputdev = input_allocate_device(); |
9534 | if (!tpacpi_inputdev) { | |
7f5d1cd6 HMH |
9535 | thinkpad_acpi_module_exit(); |
9536 | return -ENOMEM; | |
9537 | } else { | |
9538 | /* Prepare input device, but don't register */ | |
9539 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 9540 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 9541 | tpacpi_inputdev->id.bustype = BUS_HOST; |
e28393c0 | 9542 | tpacpi_inputdev->id.vendor = thinkpad_id.vendor; |
7f5d1cd6 HMH |
9543 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
9544 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
d112ef95 | 9545 | tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; |
7f5d1cd6 | 9546 | } |
77775838 HMH |
9547 | |
9548 | /* Init subdriver dependencies */ | |
9549 | tpacpi_detect_brightness_capabilities(); | |
9550 | ||
9551 | /* Init subdrivers */ | |
a5763f22 HMH |
9552 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
9553 | ret = ibm_init(&ibms_init[i]); | |
9554 | if (ret >= 0 && *ibms_init[i].param) | |
9555 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 9556 | if (ret < 0) { |
1def7115 | 9557 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
9558 | return ret; |
9559 | } | |
9560 | } | |
b589ea4c HMH |
9561 | |
9562 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; | |
9563 | ||
7f5d1cd6 HMH |
9564 | ret = input_register_device(tpacpi_inputdev); |
9565 | if (ret < 0) { | |
0978e012 | 9566 | pr_err("unable to register input device\n"); |
7f5d1cd6 HMH |
9567 | thinkpad_acpi_module_exit(); |
9568 | return ret; | |
9569 | } else { | |
9570 | tp_features.input_device_registered = 1; | |
9571 | } | |
1da177e4 LT |
9572 | |
9573 | return 0; | |
9574 | } | |
9575 | ||
95e57ab2 HMH |
9576 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
9577 | ||
922fe097 HMH |
9578 | /* |
9579 | * This will autoload the driver in almost every ThinkPad | |
9580 | * in widespread use. | |
9581 | * | |
9582 | * Only _VERY_ old models, like the 240, 240x and 570 lack | |
9583 | * the HKEY event interface. | |
9584 | */ | |
9585 | MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids); | |
9586 | ||
f68080f8 HMH |
9587 | /* |
9588 | * DMI matching for module autoloading | |
9589 | * | |
9590 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
9591 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
9592 | * | |
9593 | * Only models listed in thinkwiki will be supported, so add yours | |
9594 | * if it is not there yet. | |
9595 | */ | |
9596 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
b36a50f9 | 9597 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
f68080f8 | 9598 | |
f68080f8 HMH |
9599 | /* Ancient thinkpad BIOSes have to be identified by |
9600 | * BIOS type or model number, and there are far less | |
9601 | * BIOS types than model numbers... */ | |
922fe097 | 9602 | IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */ |
f68080f8 | 9603 | |
f68f53a2 HMH |
9604 | MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>"); |
9605 | MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>"); | |
e0c7dfe7 HMH |
9606 | MODULE_DESCRIPTION(TPACPI_DESC); |
9607 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
9608 | MODULE_LICENSE("GPL"); |
9609 | ||
1def7115 HMH |
9610 | module_init(thinkpad_acpi_module_init); |
9611 | module_exit(thinkpad_acpi_module_exit); |