Commit | Line | Data |
---|---|---|
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 | ||
aa2fbcec | 24 | #define TPACPI_VERSION "0.22" |
50ebec09 | 25 | #define TPACPI_SYSFS_VERSION 0x020200 |
78f81cc4 BD |
26 | |
27 | /* | |
1da177e4 | 28 | * Changelog: |
4b45cc07 HMH |
29 | * 2007-10-20 changelog trimmed down |
30 | * | |
643f12db HMH |
31 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
32 | * drivers/misc. | |
f9ff43a6 HMH |
33 | * |
34 | * 2006-11-22 0.13 new maintainer | |
35 | * changelog now lives in git commit history, and will | |
36 | * not be updated further in-file. | |
837ca6dd | 37 | * |
78f81cc4 BD |
38 | * 2005-03-17 0.11 support for 600e, 770x |
39 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
4b45cc07 HMH |
40 | * |
41 | * 2005-01-16 0.9 use MODULE_VERSION | |
78f81cc4 BD |
42 | * thanks to Henrik Brix Andersen <brix@gentoo.org> |
43 | * fix parameter passing on module loading | |
44 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
45 | * thanks to Jim Radford <radford@blackbean.org> | |
46 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
47 | * thanks to Chris Wright <chrisw@osdl.org> | |
1da177e4 LT |
48 | */ |
49 | ||
0c78039f HMH |
50 | #include <linux/kernel.h> |
51 | #include <linux/module.h> | |
52 | #include <linux/init.h> | |
53 | #include <linux/types.h> | |
54 | #include <linux/string.h> | |
55 | #include <linux/list.h> | |
56 | #include <linux/mutex.h> | |
57 | #include <linux/kthread.h> | |
58 | #include <linux/freezer.h> | |
59 | #include <linux/delay.h> | |
60 | ||
61 | #include <linux/nvram.h> | |
62 | #include <linux/proc_fs.h> | |
63 | #include <linux/sysfs.h> | |
64 | #include <linux/backlight.h> | |
65 | #include <linux/fb.h> | |
66 | #include <linux/platform_device.h> | |
67 | #include <linux/hwmon.h> | |
68 | #include <linux/hwmon-sysfs.h> | |
69 | #include <linux/input.h> | |
4fa6811b | 70 | #include <linux/leds.h> |
0e74dc26 | 71 | #include <linux/rfkill.h> |
0c78039f HMH |
72 | #include <asm/uaccess.h> |
73 | ||
74 | #include <linux/dmi.h> | |
75 | #include <linux/jiffies.h> | |
76 | #include <linux/workqueue.h> | |
77 | ||
78 | #include <acpi/acpi_drivers.h> | |
0c78039f HMH |
79 | |
80 | #include <linux/pci_ids.h> | |
81 | ||
0c78039f HMH |
82 | |
83 | /* ThinkPad CMOS commands */ | |
84 | #define TP_CMOS_VOLUME_DOWN 0 | |
85 | #define TP_CMOS_VOLUME_UP 1 | |
86 | #define TP_CMOS_VOLUME_MUTE 2 | |
87 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
88 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
4fa6811b HMH |
89 | #define TP_CMOS_THINKLIGHT_ON 12 |
90 | #define TP_CMOS_THINKLIGHT_OFF 13 | |
0c78039f HMH |
91 | |
92 | /* NVRAM Addresses */ | |
93 | enum tp_nvram_addr { | |
94 | TP_NVRAM_ADDR_HK2 = 0x57, | |
95 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
96 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
97 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
98 | TP_NVRAM_ADDR_MIXER = 0x60, | |
99 | }; | |
100 | ||
101 | /* NVRAM bit masks */ | |
102 | enum { | |
103 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
104 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
105 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
106 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
107 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
108 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
109 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
110 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
111 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
112 | TP_NVRAM_MASK_MUTE = 0x40, | |
113 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
114 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
115 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
116 | }; | |
117 | ||
b21a15f6 | 118 | /* ACPI HIDs */ |
e0c7dfe7 | 119 | #define TPACPI_ACPI_HKEY_HID "IBM0068" |
b21a15f6 HMH |
120 | |
121 | /* Input IDs */ | |
122 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
123 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
124 | ||
153f8220 HMH |
125 | /* ACPI \WGSV commands */ |
126 | enum { | |
127 | TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */ | |
128 | TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */ | |
129 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */ | |
130 | TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */ | |
131 | }; | |
132 | ||
133 | /* TP_ACPI_WGSV_GET_STATE bits */ | |
134 | enum { | |
135 | TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */ | |
136 | TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */ | |
137 | TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */ | |
138 | TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */ | |
139 | TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */ | |
140 | TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */ | |
141 | TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */ | |
142 | TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */ | |
143 | TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */ | |
144 | TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ | |
145 | }; | |
b21a15f6 HMH |
146 | |
147 | /**************************************************************************** | |
148 | * Main driver | |
149 | */ | |
150 | ||
e0c7dfe7 HMH |
151 | #define TPACPI_NAME "thinkpad" |
152 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
153 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
154 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
155 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 156 | |
e0c7dfe7 HMH |
157 | #define TPACPI_PROC_DIR "ibm" |
158 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
159 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 160 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 161 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 162 | |
95e57ab2 | 163 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 164 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 165 | |
e0c7dfe7 | 166 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 167 | |
0e74dc26 HMH |
168 | /* rfkill switches */ |
169 | enum { | |
170 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
171 | TPACPI_RFK_WWAN_SW_ID, | |
0045c0aa | 172 | TPACPI_RFK_UWB_SW_ID, |
0e74dc26 HMH |
173 | }; |
174 | ||
0c78039f | 175 | /* Debugging */ |
e0c7dfe7 | 176 | #define TPACPI_LOG TPACPI_FILE ": " |
106b4e66 HMH |
177 | #define TPACPI_ALERT KERN_ALERT TPACPI_LOG |
178 | #define TPACPI_CRIT KERN_CRIT TPACPI_LOG | |
179 | #define TPACPI_ERR KERN_ERR TPACPI_LOG | |
180 | #define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG | |
181 | #define TPACPI_INFO KERN_INFO TPACPI_LOG | |
182 | #define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG | |
b21a15f6 | 183 | |
0c78039f HMH |
184 | #define TPACPI_DBG_ALL 0xffff |
185 | #define TPACPI_DBG_INIT 0x0001 | |
186 | #define TPACPI_DBG_EXIT 0x0002 | |
187 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
188 | do { if (dbg_level & a_dbg_level) \ | |
35ff8b9f HMH |
189 | printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ |
190 | } while (0) | |
0c78039f HMH |
191 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
192 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
193 | dbg_printk(a_dbg_level, format, ## arg) | |
194 | static const char *str_supported(int is_supported); | |
195 | #else | |
196 | #define vdbg_printk(a_dbg_level, format, arg...) | |
197 | #endif | |
198 | ||
35ff8b9f HMH |
199 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
200 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
201 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 202 | |
0c78039f HMH |
203 | |
204 | /**************************************************************************** | |
b21a15f6 | 205 | * Driver-wide structs and misc. variables |
0c78039f HMH |
206 | */ |
207 | ||
208 | struct ibm_struct; | |
209 | ||
210 | struct tp_acpi_drv_struct { | |
211 | const struct acpi_device_id *hid; | |
212 | struct acpi_driver *driver; | |
213 | ||
214 | void (*notify) (struct ibm_struct *, u32); | |
215 | acpi_handle *handle; | |
216 | u32 type; | |
217 | struct acpi_device *device; | |
218 | }; | |
219 | ||
220 | struct ibm_struct { | |
221 | char *name; | |
222 | ||
223 | int (*read) (char *); | |
224 | int (*write) (char *); | |
225 | void (*exit) (void); | |
226 | void (*resume) (void); | |
083f1760 | 227 | void (*suspend) (pm_message_t state); |
90d9d3c7 | 228 | void (*shutdown) (void); |
0c78039f HMH |
229 | |
230 | struct list_head all_drivers; | |
231 | ||
232 | struct tp_acpi_drv_struct *acpi; | |
233 | ||
234 | struct { | |
235 | u8 acpi_driver_registered:1; | |
236 | u8 acpi_notify_installed:1; | |
237 | u8 proc_created:1; | |
238 | u8 init_called:1; | |
239 | u8 experimental:1; | |
240 | } flags; | |
241 | }; | |
242 | ||
243 | struct ibm_init_struct { | |
244 | char param[32]; | |
245 | ||
246 | int (*init) (struct ibm_init_struct *); | |
247 | struct ibm_struct *data; | |
248 | }; | |
249 | ||
250 | static struct { | |
251 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
252 | u32 bay_status:1; | |
253 | u32 bay_eject:1; | |
254 | u32 bay_status2:1; | |
255 | u32 bay_eject2:1; | |
256 | #endif | |
257 | u32 bluetooth:1; | |
258 | u32 hotkey:1; | |
259 | u32 hotkey_mask:1; | |
260 | u32 hotkey_wlsw:1; | |
6c231bd5 | 261 | u32 hotkey_tablet:1; |
0c78039f HMH |
262 | u32 light:1; |
263 | u32 light_status:1; | |
264 | u32 bright_16levels:1; | |
b5972796 | 265 | u32 bright_acpimode:1; |
0c78039f | 266 | u32 wan:1; |
0045c0aa | 267 | u32 uwb:1; |
0c78039f HMH |
268 | u32 fan_ctrl_status_undef:1; |
269 | u32 input_device_registered:1; | |
270 | u32 platform_drv_registered:1; | |
271 | u32 platform_drv_attrs_registered:1; | |
272 | u32 sensors_pdrv_registered:1; | |
273 | u32 sensors_pdrv_attrs_registered:1; | |
274 | u32 sensors_pdev_attrs_registered:1; | |
275 | u32 hotkey_poll_active:1; | |
276 | } tp_features; | |
277 | ||
92889022 HMH |
278 | static struct { |
279 | u16 hotkey_mask_ff:1; | |
2d5e94d7 | 280 | u16 bright_cmos_ec_unsync:1; |
92889022 HMH |
281 | } tp_warned; |
282 | ||
0c78039f HMH |
283 | struct thinkpad_id_data { |
284 | unsigned int vendor; /* ThinkPad vendor: | |
285 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
286 | ||
287 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
288 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
289 | ||
290 | u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ | |
291 | u16 ec_model; | |
292 | ||
8c74adbc HMH |
293 | char *model_str; /* ThinkPad T43 */ |
294 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 295 | }; |
0c78039f HMH |
296 | static struct thinkpad_id_data thinkpad_id; |
297 | ||
8fef502e HMH |
298 | static enum { |
299 | TPACPI_LIFE_INIT = 0, | |
300 | TPACPI_LIFE_RUNNING, | |
301 | TPACPI_LIFE_EXITING, | |
302 | } tpacpi_lifecycle; | |
303 | ||
b21a15f6 HMH |
304 | static int experimental; |
305 | static u32 dbg_level; | |
306 | ||
e0e3c061 HMH |
307 | static struct workqueue_struct *tpacpi_wq; |
308 | ||
4fa6811b HMH |
309 | /* Special LED class that can defer work */ |
310 | struct tpacpi_led_classdev { | |
311 | struct led_classdev led_classdev; | |
312 | struct work_struct work; | |
313 | enum led_brightness new_brightness; | |
af116101 | 314 | unsigned int led; |
4fa6811b HMH |
315 | }; |
316 | ||
a73f3091 HMH |
317 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
318 | static int dbg_wlswemul; | |
319 | static int tpacpi_wlsw_emulstate; | |
320 | static int dbg_bluetoothemul; | |
321 | static int tpacpi_bluetooth_emulstate; | |
322 | static int dbg_wwanemul; | |
323 | static int tpacpi_wwan_emulstate; | |
0045c0aa HMH |
324 | static int dbg_uwbemul; |
325 | static int tpacpi_uwb_emulstate; | |
a73f3091 HMH |
326 | #endif |
327 | ||
328 | ||
56b6aeb0 HMH |
329 | /**************************************************************************** |
330 | **************************************************************************** | |
331 | * | |
332 | * ACPI Helpers and device model | |
333 | * | |
334 | **************************************************************************** | |
335 | ****************************************************************************/ | |
336 | ||
337 | /************************************************************************* | |
338 | * ACPI basic handles | |
339 | */ | |
1da177e4 | 340 | |
94954cc6 | 341 | static acpi_handle root_handle; |
1da177e4 | 342 | |
e0c7dfe7 | 343 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 LT |
344 | static acpi_handle object##_handle; \ |
345 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 346 | static char *object##_path; \ |
1da177e4 LT |
347 | static char *object##_paths[] = { paths } |
348 | ||
e0c7dfe7 | 349 | TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
78f81cc4 BD |
350 | "\\_SB.PCI.ISA.EC", /* 570 */ |
351 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
352 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
353 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
354 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
355 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 356 | ); |
78f81cc4 | 357 | |
e0c7dfe7 HMH |
358 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
359 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 360 | |
35ff8b9f HMH |
361 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
362 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
363 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
364 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 365 | ); /* all others */ |
78f81cc4 | 366 | |
e0c7dfe7 | 367 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
368 | "^HKEY", /* R30, R31 */ |
369 | "HKEY", /* all others */ | |
56b6aeb0 | 370 | ); /* 570 */ |
78f81cc4 | 371 | |
d7c1d17d HMH |
372 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
373 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
374 | "\\_SB.PCI0.VID0", /* 770e */ | |
375 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
376 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
377 | ); /* R30, R31 */ | |
378 | ||
78f81cc4 | 379 | |
56b6aeb0 HMH |
380 | /************************************************************************* |
381 | * ACPI helpers | |
a8b7a662 HMH |
382 | */ |
383 | ||
1da177e4 LT |
384 | static int acpi_evalf(acpi_handle handle, |
385 | void *res, char *method, char *fmt, ...) | |
386 | { | |
387 | char *fmt0 = fmt; | |
78f81cc4 | 388 | struct acpi_object_list params; |
e0c7dfe7 | 389 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
390 | struct acpi_buffer result, *resultp; |
391 | union acpi_object out_obj; | |
392 | acpi_status status; | |
393 | va_list ap; | |
394 | char res_type; | |
395 | int success; | |
396 | int quiet; | |
1da177e4 LT |
397 | |
398 | if (!*fmt) { | |
e0c7dfe7 | 399 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
1da177e4 LT |
400 | return 0; |
401 | } | |
402 | ||
403 | if (*fmt == 'q') { | |
404 | quiet = 1; | |
405 | fmt++; | |
406 | } else | |
407 | quiet = 0; | |
408 | ||
409 | res_type = *(fmt++); | |
410 | ||
411 | params.count = 0; | |
412 | params.pointer = &in_objs[0]; | |
413 | ||
414 | va_start(ap, fmt); | |
415 | while (*fmt) { | |
416 | char c = *(fmt++); | |
417 | switch (c) { | |
418 | case 'd': /* int */ | |
419 | in_objs[params.count].integer.value = va_arg(ap, int); | |
420 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
421 | break; | |
78f81cc4 | 422 | /* add more types as needed */ |
1da177e4 | 423 | default: |
e0c7dfe7 | 424 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
425 | "with invalid format character '%c'\n", c); |
426 | return 0; | |
427 | } | |
428 | } | |
429 | va_end(ap); | |
430 | ||
78f81cc4 BD |
431 | if (res_type != 'v') { |
432 | result.length = sizeof(out_obj); | |
433 | result.pointer = &out_obj; | |
434 | resultp = &result; | |
435 | } else | |
436 | resultp = NULL; | |
1da177e4 | 437 | |
78f81cc4 | 438 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
439 | |
440 | switch (res_type) { | |
78f81cc4 | 441 | case 'd': /* int */ |
1da177e4 LT |
442 | if (res) |
443 | *(int *)res = out_obj.integer.value; | |
444 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
445 | break; | |
78f81cc4 | 446 | case 'v': /* void */ |
1da177e4 LT |
447 | success = status == AE_OK; |
448 | break; | |
78f81cc4 | 449 | /* add more types as needed */ |
1da177e4 | 450 | default: |
e0c7dfe7 | 451 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
452 | "with invalid format character '%c'\n", res_type); |
453 | return 0; | |
454 | } | |
455 | ||
56b6aeb0 | 456 | if (!success && !quiet) |
e0c7dfe7 | 457 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", |
56b6aeb0 HMH |
458 | method, fmt0, status); |
459 | ||
460 | return success; | |
461 | } | |
462 | ||
35ff8b9f | 463 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
464 | { |
465 | int v; | |
466 | ||
467 | if (ecrd_handle) { | |
468 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
469 | return 0; | |
470 | *p = v; | |
471 | } else { | |
472 | if (ec_read(i, p) < 0) | |
473 | return 0; | |
474 | } | |
475 | ||
476 | return 1; | |
477 | } | |
478 | ||
479 | static int acpi_ec_write(int i, u8 v) | |
480 | { | |
481 | if (ecwr_handle) { | |
482 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
483 | return 0; | |
484 | } else { | |
485 | if (ec_write(i, v) < 0) | |
486 | return 0; | |
487 | } | |
488 | ||
489 | return 1; | |
490 | } | |
491 | ||
013c40e4 | 492 | #if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY) |
56b6aeb0 HMH |
493 | static int _sta(acpi_handle handle) |
494 | { | |
495 | int status; | |
496 | ||
497 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
498 | status = 0; | |
499 | ||
500 | return status; | |
501 | } | |
013c40e4 | 502 | #endif |
56b6aeb0 | 503 | |
c9bea99c HMH |
504 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
505 | { | |
506 | if (!cmos_handle) | |
507 | return -ENXIO; | |
508 | ||
509 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
510 | return -EIO; | |
511 | ||
512 | return 0; | |
513 | } | |
514 | ||
56b6aeb0 HMH |
515 | /************************************************************************* |
516 | * ACPI device model | |
517 | */ | |
518 | ||
35ff8b9f HMH |
519 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
520 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
f74a27d4 HMH |
521 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
522 | ||
8d376cd6 | 523 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
524 | acpi_handle *handle, acpi_handle parent, |
525 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
526 | { |
527 | int i; | |
528 | acpi_status status; | |
529 | ||
5ae930e6 HMH |
530 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
531 | name); | |
532 | ||
56b6aeb0 HMH |
533 | for (i = 0; i < num_paths; i++) { |
534 | status = acpi_get_handle(parent, paths[i], handle); | |
535 | if (ACPI_SUCCESS(status)) { | |
536 | *path = paths[i]; | |
5ae930e6 HMH |
537 | dbg_printk(TPACPI_DBG_INIT, |
538 | "Found ACPI handle %s for %s\n", | |
539 | *path, name); | |
56b6aeb0 HMH |
540 | return; |
541 | } | |
542 | } | |
543 | ||
5ae930e6 HMH |
544 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
545 | name); | |
56b6aeb0 HMH |
546 | *handle = NULL; |
547 | } | |
548 | ||
8d376cd6 | 549 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
550 | { |
551 | struct ibm_struct *ibm = data; | |
552 | ||
8fef502e HMH |
553 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
554 | return; | |
555 | ||
8d376cd6 | 556 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
557 | return; |
558 | ||
8d376cd6 | 559 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
560 | } |
561 | ||
8d376cd6 | 562 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
563 | { |
564 | acpi_status status; | |
5ae930e6 | 565 | int rc; |
56b6aeb0 | 566 | |
8d376cd6 HMH |
567 | BUG_ON(!ibm->acpi); |
568 | ||
569 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
570 | return 0; |
571 | ||
5ae930e6 | 572 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
573 | "setting up ACPI notify for %s\n", ibm->name); |
574 | ||
5ae930e6 HMH |
575 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
576 | if (rc < 0) { | |
e0c7dfe7 | 577 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 578 | ibm->name, rc); |
56b6aeb0 HMH |
579 | return -ENODEV; |
580 | } | |
581 | ||
db89b4f0 | 582 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 583 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 584 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 585 | ibm->name); |
56b6aeb0 | 586 | |
8d376cd6 HMH |
587 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
588 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
589 | if (ACPI_FAILURE(status)) { |
590 | if (status == AE_ALREADY_EXISTS) { | |
35ff8b9f HMH |
591 | printk(TPACPI_NOTICE |
592 | "another device driver is already " | |
593 | "handling %s events\n", ibm->name); | |
56b6aeb0 | 594 | } else { |
35ff8b9f HMH |
595 | printk(TPACPI_ERR |
596 | "acpi_install_notify_handler(%s) failed: %d\n", | |
597 | ibm->name, status); | |
56b6aeb0 HMH |
598 | } |
599 | return -ENODEV; | |
600 | } | |
8d376cd6 | 601 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
602 | return 0; |
603 | } | |
604 | ||
8d376cd6 | 605 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
606 | { |
607 | return 0; | |
608 | } | |
609 | ||
6700121b | 610 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 611 | { |
5ae930e6 | 612 | int rc; |
56b6aeb0 | 613 | |
fe08bc4b HMH |
614 | dbg_printk(TPACPI_DBG_INIT, |
615 | "registering %s as an ACPI driver\n", ibm->name); | |
616 | ||
8d376cd6 HMH |
617 | BUG_ON(!ibm->acpi); |
618 | ||
619 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
620 | if (!ibm->acpi->driver) { | |
4f778b92 MK |
621 | printk(TPACPI_ERR |
622 | "failed to allocate memory for ibm->acpi->driver\n"); | |
5fba344c | 623 | return -ENOMEM; |
56b6aeb0 HMH |
624 | } |
625 | ||
e0c7dfe7 | 626 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 627 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 628 | |
8d376cd6 | 629 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 630 | |
5ae930e6 HMH |
631 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
632 | if (rc < 0) { | |
e0c7dfe7 | 633 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 634 | ibm->name, rc); |
8d376cd6 HMH |
635 | kfree(ibm->acpi->driver); |
636 | ibm->acpi->driver = NULL; | |
5ae930e6 | 637 | } else if (!rc) |
8d376cd6 | 638 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 639 | |
5ae930e6 | 640 | return rc; |
56b6aeb0 HMH |
641 | } |
642 | ||
643 | ||
644 | /**************************************************************************** | |
645 | **************************************************************************** | |
646 | * | |
647 | * Procfs Helpers | |
648 | * | |
649 | **************************************************************************** | |
650 | ****************************************************************************/ | |
651 | ||
8d376cd6 HMH |
652 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
653 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
654 | { |
655 | struct ibm_struct *ibm = data; | |
656 | int len; | |
657 | ||
658 | if (!ibm || !ibm->read) | |
659 | return -EINVAL; | |
660 | ||
661 | len = ibm->read(page); | |
662 | if (len < 0) | |
663 | return len; | |
664 | ||
665 | if (len <= off + count) | |
666 | *eof = 1; | |
667 | *start = page + off; | |
668 | len -= off; | |
669 | if (len > count) | |
670 | len = count; | |
671 | if (len < 0) | |
672 | len = 0; | |
673 | ||
674 | return len; | |
675 | } | |
676 | ||
8d376cd6 | 677 | static int dispatch_procfs_write(struct file *file, |
35ff8b9f | 678 | const char __user *userbuf, |
8d376cd6 | 679 | unsigned long count, void *data) |
56b6aeb0 HMH |
680 | { |
681 | struct ibm_struct *ibm = data; | |
682 | char *kernbuf; | |
683 | int ret; | |
684 | ||
685 | if (!ibm || !ibm->write) | |
686 | return -EINVAL; | |
687 | ||
688 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
689 | if (!kernbuf) | |
690 | return -ENOMEM; | |
1da177e4 | 691 | |
56b6aeb0 HMH |
692 | if (copy_from_user(kernbuf, userbuf, count)) { |
693 | kfree(kernbuf); | |
694 | return -EFAULT; | |
695 | } | |
1da177e4 | 696 | |
56b6aeb0 HMH |
697 | kernbuf[count] = 0; |
698 | strcat(kernbuf, ","); | |
699 | ret = ibm->write(kernbuf); | |
700 | if (ret == 0) | |
701 | ret = count; | |
1da177e4 | 702 | |
56b6aeb0 HMH |
703 | kfree(kernbuf); |
704 | ||
705 | return ret; | |
1da177e4 LT |
706 | } |
707 | ||
708 | static char *next_cmd(char **cmds) | |
709 | { | |
710 | char *start = *cmds; | |
711 | char *end; | |
712 | ||
713 | while ((end = strchr(start, ',')) && end == start) | |
714 | start = end + 1; | |
715 | ||
716 | if (!end) | |
717 | return NULL; | |
718 | ||
719 | *end = 0; | |
720 | *cmds = end + 1; | |
721 | return start; | |
722 | } | |
723 | ||
56b6aeb0 | 724 | |
54ae1501 HMH |
725 | /**************************************************************************** |
726 | **************************************************************************** | |
727 | * | |
7f5d1cd6 | 728 | * Device model: input, hwmon and platform |
54ae1501 HMH |
729 | * |
730 | **************************************************************************** | |
731 | ****************************************************************************/ | |
732 | ||
94954cc6 | 733 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 734 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 735 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 736 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 737 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 738 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 739 | |
083f1760 HMH |
740 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
741 | pm_message_t state) | |
742 | { | |
743 | struct ibm_struct *ibm, *itmp; | |
744 | ||
745 | list_for_each_entry_safe(ibm, itmp, | |
746 | &tpacpi_all_drivers, | |
747 | all_drivers) { | |
748 | if (ibm->suspend) | |
749 | (ibm->suspend)(state); | |
750 | } | |
751 | ||
752 | return 0; | |
753 | } | |
754 | ||
e295e850 HMH |
755 | static int tpacpi_resume_handler(struct platform_device *pdev) |
756 | { | |
757 | struct ibm_struct *ibm, *itmp; | |
758 | ||
759 | list_for_each_entry_safe(ibm, itmp, | |
760 | &tpacpi_all_drivers, | |
761 | all_drivers) { | |
762 | if (ibm->resume) | |
763 | (ibm->resume)(); | |
764 | } | |
765 | ||
766 | return 0; | |
767 | } | |
768 | ||
90d9d3c7 HMH |
769 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
770 | { | |
771 | struct ibm_struct *ibm, *itmp; | |
772 | ||
773 | list_for_each_entry_safe(ibm, itmp, | |
774 | &tpacpi_all_drivers, | |
775 | all_drivers) { | |
776 | if (ibm->shutdown) | |
777 | (ibm->shutdown)(); | |
778 | } | |
779 | } | |
780 | ||
54ae1501 HMH |
781 | static struct platform_driver tpacpi_pdriver = { |
782 | .driver = { | |
e0c7dfe7 | 783 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
784 | .owner = THIS_MODULE, |
785 | }, | |
083f1760 | 786 | .suspend = tpacpi_suspend_handler, |
e295e850 | 787 | .resume = tpacpi_resume_handler, |
90d9d3c7 | 788 | .shutdown = tpacpi_shutdown_handler, |
54ae1501 HMH |
789 | }; |
790 | ||
7fd40029 HMH |
791 | static struct platform_driver tpacpi_hwmon_pdriver = { |
792 | .driver = { | |
e0c7dfe7 | 793 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
794 | .owner = THIS_MODULE, |
795 | }, | |
796 | }; | |
54ae1501 | 797 | |
176750d6 | 798 | /************************************************************************* |
b21a15f6 | 799 | * sysfs support helpers |
176750d6 HMH |
800 | */ |
801 | ||
b21a15f6 HMH |
802 | struct attribute_set { |
803 | unsigned int members, max_members; | |
804 | struct attribute_group group; | |
176750d6 HMH |
805 | }; |
806 | ||
7252374a HMH |
807 | struct attribute_set_obj { |
808 | struct attribute_set s; | |
809 | struct attribute *a; | |
810 | } __attribute__((packed)); | |
811 | ||
812 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 813 | const char *name) |
7252374a HMH |
814 | { |
815 | struct attribute_set_obj *sobj; | |
816 | ||
817 | if (max_members == 0) | |
818 | return NULL; | |
819 | ||
820 | /* Allocates space for implicit NULL at the end too */ | |
821 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
822 | max_members * sizeof(struct attribute *), | |
823 | GFP_KERNEL); | |
824 | if (!sobj) | |
825 | return NULL; | |
826 | sobj->s.max_members = max_members; | |
827 | sobj->s.group.attrs = &sobj->a; | |
828 | sobj->s.group.name = name; | |
829 | ||
830 | return &sobj->s; | |
831 | } | |
832 | ||
f74a27d4 HMH |
833 | #define destroy_attr_set(_set) \ |
834 | kfree(_set); | |
835 | ||
7252374a | 836 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 837 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
838 | { |
839 | if (!s || !attr) | |
840 | return -EINVAL; | |
841 | ||
842 | if (s->members >= s->max_members) | |
843 | return -ENOMEM; | |
844 | ||
845 | s->group.attrs[s->members] = attr; | |
846 | s->members++; | |
847 | ||
848 | return 0; | |
849 | } | |
850 | ||
35ff8b9f | 851 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
852 | struct attribute **attr, |
853 | unsigned int count) | |
854 | { | |
855 | int i, res; | |
856 | ||
857 | for (i = 0; i < count; i++) { | |
858 | res = add_to_attr_set(s, attr[i]); | |
859 | if (res) | |
860 | return res; | |
861 | } | |
862 | ||
863 | return 0; | |
864 | } | |
865 | ||
35ff8b9f | 866 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
867 | { |
868 | sysfs_remove_group(kobj, &s->group); | |
869 | destroy_attr_set(s); | |
870 | } | |
871 | ||
f74a27d4 HMH |
872 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
873 | sysfs_create_group(_kobj, &_attr_set->group) | |
874 | ||
7252374a HMH |
875 | static int parse_strtoul(const char *buf, |
876 | unsigned long max, unsigned long *value) | |
877 | { | |
878 | char *endp; | |
879 | ||
32afbf07 HMH |
880 | while (*buf && isspace(*buf)) |
881 | buf++; | |
7252374a HMH |
882 | *value = simple_strtoul(buf, &endp, 0); |
883 | while (*endp && isspace(*endp)) | |
884 | endp++; | |
885 | if (*endp || *value > max) | |
886 | return -EINVAL; | |
887 | ||
888 | return 0; | |
889 | } | |
890 | ||
d64c81c4 HMH |
891 | static void tpacpi_disable_brightness_delay(void) |
892 | { | |
893 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
894 | printk(TPACPI_NOTICE | |
895 | "ACPI backlight control delay disabled\n"); | |
896 | } | |
897 | ||
b5972796 HMH |
898 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
899 | { | |
900 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
901 | union acpi_object *obj; | |
902 | int rc; | |
903 | ||
904 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
905 | obj = (union acpi_object *)buffer.pointer; | |
906 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
907 | printk(TPACPI_ERR "Unknown _BCL data, " | |
908 | "please report this to %s\n", TPACPI_MAIL); | |
909 | rc = 0; | |
910 | } else { | |
911 | rc = obj->package.count; | |
912 | } | |
913 | } else { | |
914 | return 0; | |
915 | } | |
916 | ||
917 | kfree(buffer.pointer); | |
918 | return rc; | |
919 | } | |
920 | ||
921 | static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle, | |
922 | u32 lvl, void *context, void **rv) | |
923 | { | |
924 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
925 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
926 | ||
927 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
928 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
929 | BUG_ON(!rv || !*rv); | |
930 | **(int **)rv = tpacpi_query_bcl_levels(handle); | |
931 | return AE_CTRL_TERMINATE; | |
932 | } else { | |
933 | return AE_OK; | |
934 | } | |
935 | } | |
936 | ||
937 | /* | |
938 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
939 | */ | |
940 | static int __init tpacpi_check_std_acpi_brightness_support(void) | |
941 | { | |
942 | int status; | |
943 | int bcl_levels = 0; | |
944 | void *bcl_ptr = &bcl_levels; | |
945 | ||
946 | if (!vid_handle) { | |
947 | TPACPI_ACPIHANDLE_INIT(vid); | |
948 | } | |
949 | if (!vid_handle) | |
950 | return 0; | |
951 | ||
952 | /* | |
953 | * Search for a _BCL method, and execute it. This is safe on all | |
954 | * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista | |
955 | * BIOS in ACPI backlight control mode. We do NOT have to care | |
956 | * about calling the _BCL method in an enabled video device, any | |
957 | * will do for our purposes. | |
958 | */ | |
959 | ||
960 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
961 | tpacpi_acpi_walk_find_bcl, NULL, | |
962 | &bcl_ptr); | |
963 | ||
964 | if (ACPI_SUCCESS(status) && bcl_levels > 2) { | |
965 | tp_features.bright_acpimode = 1; | |
966 | return (bcl_levels - 2); | |
967 | } | |
968 | ||
969 | return 0; | |
970 | } | |
971 | ||
0e74dc26 HMH |
972 | static int __init tpacpi_new_rfkill(const unsigned int id, |
973 | struct rfkill **rfk, | |
974 | const enum rfkill_type rfktype, | |
975 | const char *name, | |
0045c0aa | 976 | const bool set_default, |
0e74dc26 HMH |
977 | int (*toggle_radio)(void *, enum rfkill_state), |
978 | int (*get_state)(void *, enum rfkill_state *)) | |
979 | { | |
980 | int res; | |
90d9d3c7 HMH |
981 | enum rfkill_state initial_state = RFKILL_STATE_SOFT_BLOCKED; |
982 | ||
983 | res = get_state(NULL, &initial_state); | |
984 | if (res < 0) { | |
985 | printk(TPACPI_ERR | |
986 | "failed to read initial state for %s, error %d; " | |
987 | "will turn radio off\n", name, res); | |
0045c0aa | 988 | } else if (set_default) { |
90d9d3c7 HMH |
989 | /* try to set the initial state as the default for the rfkill |
990 | * type, since we ask the firmware to preserve it across S5 in | |
991 | * NVRAM */ | |
992 | rfkill_set_default(rfktype, | |
993 | (initial_state == RFKILL_STATE_UNBLOCKED) ? | |
994 | RFKILL_STATE_UNBLOCKED : | |
995 | RFKILL_STATE_SOFT_BLOCKED); | |
996 | } | |
0e74dc26 HMH |
997 | |
998 | *rfk = rfkill_allocate(&tpacpi_pdev->dev, rfktype); | |
999 | if (!*rfk) { | |
1000 | printk(TPACPI_ERR | |
1001 | "failed to allocate memory for rfkill class\n"); | |
1002 | return -ENOMEM; | |
1003 | } | |
1004 | ||
1005 | (*rfk)->name = name; | |
1006 | (*rfk)->get_state = get_state; | |
1007 | (*rfk)->toggle_radio = toggle_radio; | |
90d9d3c7 | 1008 | (*rfk)->state = initial_state; |
0e74dc26 HMH |
1009 | |
1010 | res = rfkill_register(*rfk); | |
1011 | if (res < 0) { | |
1012 | printk(TPACPI_ERR | |
1013 | "failed to register %s rfkill switch: %d\n", | |
1014 | name, res); | |
1015 | rfkill_free(*rfk); | |
1016 | *rfk = NULL; | |
1017 | return res; | |
1018 | } | |
1019 | ||
1020 | return 0; | |
1021 | } | |
1022 | ||
56b6aeb0 | 1023 | /************************************************************************* |
b21a15f6 | 1024 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
1025 | */ |
1026 | ||
b21a15f6 HMH |
1027 | /* interface_version --------------------------------------------------- */ |
1028 | static ssize_t tpacpi_driver_interface_version_show( | |
1029 | struct device_driver *drv, | |
1030 | char *buf) | |
1da177e4 | 1031 | { |
b21a15f6 HMH |
1032 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
1033 | } | |
1034 | ||
1035 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
1036 | tpacpi_driver_interface_version_show, NULL); | |
1037 | ||
1038 | /* debug_level --------------------------------------------------------- */ | |
1039 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
1040 | char *buf) | |
1041 | { | |
1042 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1043 | } | |
1044 | ||
1045 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
1046 | const char *buf, size_t count) | |
1047 | { | |
1048 | unsigned long t; | |
1049 | ||
1050 | if (parse_strtoul(buf, 0xffff, &t)) | |
1051 | return -EINVAL; | |
1052 | ||
1053 | dbg_level = t; | |
1054 | ||
1055 | return count; | |
1056 | } | |
1057 | ||
1058 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
1059 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
1060 | ||
1061 | /* version ------------------------------------------------------------- */ | |
1062 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
1063 | char *buf) | |
1064 | { | |
35ff8b9f HMH |
1065 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1066 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 HMH |
1067 | } |
1068 | ||
1069 | static DRIVER_ATTR(version, S_IRUGO, | |
1070 | tpacpi_driver_version_show, NULL); | |
1071 | ||
1072 | /* --------------------------------------------------------------------- */ | |
1073 | ||
a73f3091 HMH |
1074 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1075 | ||
1076 | static void tpacpi_send_radiosw_update(void); | |
1077 | ||
1078 | /* wlsw_emulstate ------------------------------------------------------ */ | |
1079 | static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv, | |
1080 | char *buf) | |
1081 | { | |
1082 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1083 | } | |
1084 | ||
1085 | static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv, | |
1086 | const char *buf, size_t count) | |
1087 | { | |
1088 | unsigned long t; | |
1089 | ||
1090 | if (parse_strtoul(buf, 1, &t)) | |
1091 | return -EINVAL; | |
1092 | ||
1093 | if (tpacpi_wlsw_emulstate != t) { | |
1094 | tpacpi_wlsw_emulstate = !!t; | |
1095 | tpacpi_send_radiosw_update(); | |
1096 | } else | |
1097 | tpacpi_wlsw_emulstate = !!t; | |
1098 | ||
1099 | return count; | |
1100 | } | |
1101 | ||
1102 | static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO, | |
1103 | tpacpi_driver_wlsw_emulstate_show, | |
1104 | tpacpi_driver_wlsw_emulstate_store); | |
1105 | ||
1106 | /* bluetooth_emulstate ------------------------------------------------- */ | |
1107 | static ssize_t tpacpi_driver_bluetooth_emulstate_show( | |
1108 | struct device_driver *drv, | |
1109 | char *buf) | |
1110 | { | |
1111 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1112 | } | |
1113 | ||
1114 | static ssize_t tpacpi_driver_bluetooth_emulstate_store( | |
1115 | struct device_driver *drv, | |
1116 | const char *buf, size_t count) | |
1117 | { | |
1118 | unsigned long t; | |
1119 | ||
1120 | if (parse_strtoul(buf, 1, &t)) | |
1121 | return -EINVAL; | |
1122 | ||
1123 | tpacpi_bluetooth_emulstate = !!t; | |
1124 | ||
1125 | return count; | |
1126 | } | |
1127 | ||
1128 | static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO, | |
1129 | tpacpi_driver_bluetooth_emulstate_show, | |
1130 | tpacpi_driver_bluetooth_emulstate_store); | |
1131 | ||
1132 | /* wwan_emulstate ------------------------------------------------- */ | |
1133 | static ssize_t tpacpi_driver_wwan_emulstate_show( | |
1134 | struct device_driver *drv, | |
1135 | char *buf) | |
1136 | { | |
1137 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1138 | } | |
1139 | ||
1140 | static ssize_t tpacpi_driver_wwan_emulstate_store( | |
1141 | struct device_driver *drv, | |
1142 | const char *buf, size_t count) | |
1143 | { | |
1144 | unsigned long t; | |
1145 | ||
1146 | if (parse_strtoul(buf, 1, &t)) | |
1147 | return -EINVAL; | |
1148 | ||
1149 | tpacpi_wwan_emulstate = !!t; | |
1150 | ||
1151 | return count; | |
1152 | } | |
1153 | ||
1154 | static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO, | |
1155 | tpacpi_driver_wwan_emulstate_show, | |
1156 | tpacpi_driver_wwan_emulstate_store); | |
1157 | ||
0045c0aa HMH |
1158 | /* uwb_emulstate ------------------------------------------------- */ |
1159 | static ssize_t tpacpi_driver_uwb_emulstate_show( | |
1160 | struct device_driver *drv, | |
1161 | char *buf) | |
1162 | { | |
1163 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); | |
1164 | } | |
1165 | ||
1166 | static ssize_t tpacpi_driver_uwb_emulstate_store( | |
1167 | struct device_driver *drv, | |
1168 | const char *buf, size_t count) | |
1169 | { | |
1170 | unsigned long t; | |
1171 | ||
1172 | if (parse_strtoul(buf, 1, &t)) | |
1173 | return -EINVAL; | |
1174 | ||
1175 | tpacpi_uwb_emulstate = !!t; | |
1176 | ||
1177 | return count; | |
1178 | } | |
1179 | ||
1180 | static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO, | |
1181 | tpacpi_driver_uwb_emulstate_show, | |
1182 | tpacpi_driver_uwb_emulstate_store); | |
a73f3091 HMH |
1183 | #endif |
1184 | ||
1185 | /* --------------------------------------------------------------------- */ | |
1186 | ||
35ff8b9f | 1187 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1188 | &driver_attr_debug_level, &driver_attr_version, |
1189 | &driver_attr_interface_version, | |
1190 | }; | |
1191 | ||
1192 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1193 | { | |
1194 | int i, res; | |
1195 | ||
1196 | i = 0; | |
1197 | res = 0; | |
1198 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1199 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1200 | i++; | |
1201 | } | |
1202 | ||
a73f3091 HMH |
1203 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1204 | if (!res && dbg_wlswemul) | |
1205 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1206 | if (!res && dbg_bluetoothemul) | |
1207 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1208 | if (!res && dbg_wwanemul) | |
1209 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa HMH |
1210 | if (!res && dbg_uwbemul) |
1211 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); | |
a73f3091 HMH |
1212 | #endif |
1213 | ||
b21a15f6 HMH |
1214 | return res; |
1215 | } | |
1216 | ||
1217 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1218 | { | |
1219 | int i; | |
1220 | ||
35ff8b9f | 1221 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1222 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1223 | |
1224 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1225 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1226 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1227 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa | 1228 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
a73f3091 | 1229 | #endif |
b21a15f6 HMH |
1230 | } |
1231 | ||
1232 | /**************************************************************************** | |
1233 | **************************************************************************** | |
1234 | * | |
1235 | * Subdrivers | |
1236 | * | |
1237 | **************************************************************************** | |
1238 | ****************************************************************************/ | |
1239 | ||
1240 | /************************************************************************* | |
1241 | * thinkpad-acpi init subdriver | |
1242 | */ | |
1243 | ||
1244 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
1245 | { | |
e0c7dfe7 HMH |
1246 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
1247 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
b21a15f6 | 1248 | |
e0c7dfe7 | 1249 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
b21a15f6 HMH |
1250 | (thinkpad_id.bios_version_str) ? |
1251 | thinkpad_id.bios_version_str : "unknown", | |
1252 | (thinkpad_id.ec_version_str) ? | |
1253 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
1254 | |
1255 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
8c74adbc | 1256 | printk(TPACPI_INFO "%s %s, model %s\n", |
d5a2f2f1 HMH |
1257 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
1258 | "IBM" : ((thinkpad_id.vendor == | |
1259 | PCI_VENDOR_ID_LENOVO) ? | |
1260 | "Lenovo" : "Unknown vendor"), | |
8c74adbc HMH |
1261 | thinkpad_id.model_str, |
1262 | (thinkpad_id.nummodel_str) ? | |
1263 | thinkpad_id.nummodel_str : "unknown"); | |
3945ac36 | 1264 | |
1da177e4 LT |
1265 | return 0; |
1266 | } | |
1267 | ||
643f12db | 1268 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
1269 | { |
1270 | int len = 0; | |
1271 | ||
e0c7dfe7 HMH |
1272 | len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); |
1273 | len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); | |
1da177e4 LT |
1274 | |
1275 | return len; | |
1276 | } | |
1277 | ||
a5763f22 HMH |
1278 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1279 | .name = "driver", | |
1280 | .read = thinkpad_acpi_driver_read, | |
1281 | }; | |
1282 | ||
56b6aeb0 HMH |
1283 | /************************************************************************* |
1284 | * Hotkey subdriver | |
1285 | */ | |
1286 | ||
f74a27d4 HMH |
1287 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1288 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1289 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1290 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1291 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1292 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1293 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1294 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1295 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1296 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1297 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1298 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1299 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1300 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1301 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1302 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1303 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1304 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1305 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1306 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1307 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1308 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1309 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1310 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1311 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1312 | }; | |
1313 | ||
01e88f25 HMH |
1314 | enum { /* Keys available through NVRAM polling */ |
1315 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, | |
1316 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1317 | }; | |
1318 | ||
1319 | enum { /* Positions of some of the keys in hotkey masks */ | |
1320 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1321 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1322 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1323 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1324 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
1325 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1326 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1327 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1328 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1329 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1330 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1331 | }; | |
1332 | ||
1333 | enum { /* NVRAM to ACPI HKEY group map */ | |
1334 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1335 | TP_ACPI_HKEY_ZOOM_MASK | | |
1336 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1337 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1338 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1339 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1340 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1341 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1342 | TP_ACPI_HKEY_MUTE_MASK, | |
1343 | }; | |
1344 | ||
1345 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1346 | struct tp_nvram_state { | |
1347 | u16 thinkpad_toggle:1; | |
1348 | u16 zoom_toggle:1; | |
1349 | u16 display_toggle:1; | |
1350 | u16 thinklight_toggle:1; | |
1351 | u16 hibernate_toggle:1; | |
1352 | u16 displayexp_toggle:1; | |
1353 | u16 display_state:1; | |
1354 | u16 brightness_toggle:1; | |
1355 | u16 volume_toggle:1; | |
1356 | u16 mute:1; | |
1357 | ||
1358 | u8 brightness_level; | |
1359 | u8 volume_level; | |
1360 | }; | |
1361 | ||
1362 | static struct task_struct *tpacpi_hotkey_task; | |
1363 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
1364 | static int hotkey_poll_freq = 10; /* Hz */ | |
1365 | static struct mutex hotkey_thread_mutex; | |
1366 | static struct mutex hotkey_thread_data_mutex; | |
1367 | static unsigned int hotkey_config_change; | |
1368 | ||
1369 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1370 | ||
1371 | #define hotkey_source_mask 0U | |
1372 | ||
1373 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1374 | ||
f74a27d4 HMH |
1375 | static struct mutex hotkey_mutex; |
1376 | ||
a713b4d7 HMH |
1377 | static enum { /* Reasons for waking up */ |
1378 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
1379 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
1380 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
1381 | } hotkey_wakeup_reason; | |
1382 | ||
1383 | static int hotkey_autosleep_ack; | |
1384 | ||
78f81cc4 | 1385 | static int hotkey_orig_status; |
ae92bd17 | 1386 | static u32 hotkey_orig_mask; |
9b010de5 | 1387 | static u32 hotkey_all_mask; |
6a38abbf | 1388 | static u32 hotkey_reserved_mask; |
b2c985e7 | 1389 | static u32 hotkey_mask; |
6a38abbf | 1390 | |
b21a15f6 HMH |
1391 | static unsigned int hotkey_report_mode; |
1392 | ||
edf0e0e5 | 1393 | static u16 *hotkey_keycode_map; |
78f81cc4 | 1394 | |
94954cc6 | 1395 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 1396 | |
01e88f25 HMH |
1397 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1398 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
35ff8b9f HMH |
1399 | do { \ |
1400 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1401 | hotkey_config_change++; \ | |
1402 | } while (0); | |
01e88f25 HMH |
1403 | #define HOTKEY_CONFIG_CRITICAL_END \ |
1404 | mutex_unlock(&hotkey_thread_data_mutex); | |
1405 | #else | |
1406 | #define HOTKEY_CONFIG_CRITICAL_START | |
1407 | #define HOTKEY_CONFIG_CRITICAL_END | |
1408 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1409 | ||
6c231bd5 HMH |
1410 | /* HKEY.MHKG() return bits */ |
1411 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
1412 | ||
74941a69 HMH |
1413 | static int hotkey_get_wlsw(int *status) |
1414 | { | |
a73f3091 HMH |
1415 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1416 | if (dbg_wlswemul) { | |
1417 | *status = !!tpacpi_wlsw_emulstate; | |
1418 | return 0; | |
1419 | } | |
1420 | #endif | |
74941a69 HMH |
1421 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) |
1422 | return -EIO; | |
1423 | return 0; | |
1424 | } | |
1425 | ||
6c231bd5 HMH |
1426 | static int hotkey_get_tablet_mode(int *status) |
1427 | { | |
1428 | int s; | |
1429 | ||
1430 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
1431 | return -EIO; | |
1432 | ||
cee47f5a HMH |
1433 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
1434 | return 0; | |
6c231bd5 HMH |
1435 | } |
1436 | ||
b2c985e7 HMH |
1437 | /* |
1438 | * Call with hotkey_mutex held | |
1439 | */ | |
1440 | static int hotkey_mask_get(void) | |
1441 | { | |
01e88f25 HMH |
1442 | u32 m = 0; |
1443 | ||
b2c985e7 | 1444 | if (tp_features.hotkey_mask) { |
01e88f25 | 1445 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 HMH |
1446 | return -EIO; |
1447 | } | |
01e88f25 | 1448 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
b2c985e7 HMH |
1449 | |
1450 | return 0; | |
1451 | } | |
1452 | ||
1453 | /* | |
1454 | * Call with hotkey_mutex held | |
1455 | */ | |
1456 | static int hotkey_mask_set(u32 mask) | |
1457 | { | |
1458 | int i; | |
1459 | int rc = 0; | |
1460 | ||
1461 | if (tp_features.hotkey_mask) { | |
92889022 HMH |
1462 | if (!tp_warned.hotkey_mask_ff && |
1463 | (mask == 0xffff || mask == 0xffffff || | |
1464 | mask == 0xffffffff)) { | |
1465 | tp_warned.hotkey_mask_ff = 1; | |
1466 | printk(TPACPI_NOTICE | |
1467 | "setting the hotkey mask to 0x%08x is likely " | |
1468 | "not the best way to go about it\n", mask); | |
1469 | printk(TPACPI_NOTICE | |
1470 | "please consider using the driver defaults, " | |
1471 | "and refer to up-to-date thinkpad-acpi " | |
1472 | "documentation\n"); | |
1473 | } | |
1474 | ||
01e88f25 | 1475 | HOTKEY_CONFIG_CRITICAL_START |
b2c985e7 HMH |
1476 | for (i = 0; i < 32; i++) { |
1477 | u32 m = 1 << i; | |
01e88f25 HMH |
1478 | /* enable in firmware mask only keys not in NVRAM |
1479 | * mode, but enable the key in the cached hotkey_mask | |
1480 | * regardless of mode, or the key will end up | |
1481 | * disabled by hotkey_mask_get() */ | |
b2c985e7 HMH |
1482 | if (!acpi_evalf(hkey_handle, |
1483 | NULL, "MHKM", "vdd", i + 1, | |
01e88f25 | 1484 | !!((mask & ~hotkey_source_mask) & m))) { |
b2c985e7 HMH |
1485 | rc = -EIO; |
1486 | break; | |
1487 | } else { | |
1488 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
1489 | } | |
1490 | } | |
01e88f25 | 1491 | HOTKEY_CONFIG_CRITICAL_END |
b2c985e7 HMH |
1492 | |
1493 | /* hotkey_mask_get must be called unconditionally below */ | |
01e88f25 HMH |
1494 | if (!hotkey_mask_get() && !rc && |
1495 | (hotkey_mask & ~hotkey_source_mask) != | |
1496 | (mask & ~hotkey_source_mask)) { | |
e0c7dfe7 | 1497 | printk(TPACPI_NOTICE |
b2c985e7 HMH |
1498 | "requested hot key mask 0x%08x, but " |
1499 | "firmware forced it to 0x%08x\n", | |
1500 | mask, hotkey_mask); | |
1501 | } | |
01e88f25 HMH |
1502 | } else { |
1503 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1504 | HOTKEY_CONFIG_CRITICAL_START | |
1505 | hotkey_mask = mask & hotkey_source_mask; | |
1506 | HOTKEY_CONFIG_CRITICAL_END | |
1507 | hotkey_mask_get(); | |
1508 | if (hotkey_mask != mask) { | |
e0c7dfe7 | 1509 | printk(TPACPI_NOTICE |
01e88f25 HMH |
1510 | "requested hot key mask 0x%08x, " |
1511 | "forced to 0x%08x (NVRAM poll mask is " | |
1512 | "0x%08x): no firmware mask support\n", | |
1513 | mask, hotkey_mask, hotkey_source_mask); | |
1514 | } | |
1515 | #else | |
1516 | hotkey_mask_get(); | |
1517 | rc = -ENXIO; | |
1518 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
b2c985e7 HMH |
1519 | } |
1520 | ||
1521 | return rc; | |
1522 | } | |
1523 | ||
1524 | static int hotkey_status_get(int *status) | |
1525 | { | |
1526 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
1527 | return -EIO; | |
1528 | ||
1529 | return 0; | |
1530 | } | |
1531 | ||
1532 | static int hotkey_status_set(int status) | |
1533 | { | |
1534 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1535 | return -EIO; | |
1536 | ||
1537 | return 0; | |
1538 | } | |
1539 | ||
6c231bd5 | 1540 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 1541 | { |
6c231bd5 | 1542 | int state; |
b3ec6f91 | 1543 | |
6c231bd5 HMH |
1544 | if (tp_features.hotkey_tablet && |
1545 | !hotkey_get_tablet_mode(&state)) { | |
1546 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 1547 | |
6c231bd5 HMH |
1548 | input_report_switch(tpacpi_inputdev, |
1549 | SW_TABLET_MODE, !!state); | |
1550 | input_sync(tpacpi_inputdev); | |
1551 | ||
1552 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1553 | } | |
b3ec6f91 HMH |
1554 | } |
1555 | ||
b7c8c200 HMH |
1556 | static void tpacpi_input_send_key(unsigned int scancode) |
1557 | { | |
1558 | unsigned int keycode; | |
1559 | ||
1560 | keycode = hotkey_keycode_map[scancode]; | |
1561 | ||
1562 | if (keycode != KEY_RESERVED) { | |
1563 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1564 | ||
1565 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1566 | if (keycode == KEY_UNKNOWN) | |
1567 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1568 | scancode); | |
1569 | input_sync(tpacpi_inputdev); | |
1570 | ||
1571 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1572 | if (keycode == KEY_UNKNOWN) | |
1573 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1574 | scancode); | |
1575 | input_sync(tpacpi_inputdev); | |
1576 | ||
1577 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1578 | } | |
1579 | } | |
1580 | ||
01e88f25 HMH |
1581 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1582 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
1583 | ||
1584 | static void tpacpi_hotkey_send_key(unsigned int scancode) | |
1585 | { | |
1586 | tpacpi_input_send_key(scancode); | |
1587 | if (hotkey_report_mode < 2) { | |
1588 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
1589 | 0x80, 0x1001 + scancode); | |
1590 | } | |
1591 | } | |
1592 | ||
1593 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) | |
1594 | { | |
1595 | u8 d; | |
1596 | ||
1597 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
1598 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
1599 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
1600 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
1601 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
1602 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
1603 | } | |
1604 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
1605 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
1606 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
1607 | } | |
1608 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
1609 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
1610 | n->displayexp_toggle = | |
1611 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
1612 | } | |
1613 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
1614 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
1615 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
1616 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
1617 | n->brightness_toggle = | |
1618 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
1619 | } | |
1620 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
1621 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
1622 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
1623 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
1624 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
1625 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
1626 | } | |
1627 | } | |
1628 | ||
1629 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
35ff8b9f HMH |
1630 | do { \ |
1631 | if ((mask & (1 << __scancode)) && \ | |
1632 | oldn->__member != newn->__member) \ | |
1633 | tpacpi_hotkey_send_key(__scancode); \ | |
1634 | } while (0) | |
01e88f25 HMH |
1635 | |
1636 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
1637 | do { if (mask & (1 << __scancode)) \ | |
1638 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1639 | ||
1640 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
35ff8b9f | 1641 | struct tp_nvram_state *newn, |
01e88f25 HMH |
1642 | u32 mask) |
1643 | { | |
1644 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); | |
1645 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
1646 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
1647 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
1648 | ||
1649 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
1650 | ||
1651 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
1652 | ||
1653 | /* handle volume */ | |
1654 | if (oldn->volume_toggle != newn->volume_toggle) { | |
1655 | if (oldn->mute != newn->mute) { | |
1656 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1657 | } | |
1658 | if (oldn->volume_level > newn->volume_level) { | |
1659 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1660 | } else if (oldn->volume_level < newn->volume_level) { | |
1661 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1662 | } else if (oldn->mute == newn->mute) { | |
1663 | /* repeated key presses that didn't change state */ | |
1664 | if (newn->mute) { | |
1665 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1666 | } else if (newn->volume_level != 0) { | |
1667 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1668 | } else { | |
1669 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1670 | } | |
1671 | } | |
1672 | } | |
1673 | ||
1674 | /* handle brightness */ | |
1675 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
1676 | if (oldn->brightness_level < newn->brightness_level) { | |
1677 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1678 | } else if (oldn->brightness_level > newn->brightness_level) { | |
1679 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1680 | } else { | |
1681 | /* repeated key presses that didn't change state */ | |
1682 | if (newn->brightness_level != 0) { | |
1683 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1684 | } else { | |
1685 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1686 | } | |
1687 | } | |
1688 | } | |
1689 | } | |
1690 | ||
1691 | #undef TPACPI_COMPARE_KEY | |
1692 | #undef TPACPI_MAY_SEND_KEY | |
1693 | ||
1694 | static int hotkey_kthread(void *data) | |
1695 | { | |
1696 | struct tp_nvram_state s[2]; | |
1697 | u32 mask; | |
1698 | unsigned int si, so; | |
1699 | unsigned long t; | |
1700 | unsigned int change_detector, must_reset; | |
1701 | ||
1702 | mutex_lock(&hotkey_thread_mutex); | |
1703 | ||
1704 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
1705 | goto exit; | |
1706 | ||
1707 | set_freezable(); | |
1708 | ||
1709 | so = 0; | |
1710 | si = 1; | |
1711 | t = 0; | |
1712 | ||
1713 | /* Initial state for compares */ | |
1714 | mutex_lock(&hotkey_thread_data_mutex); | |
1715 | change_detector = hotkey_config_change; | |
1716 | mask = hotkey_source_mask & hotkey_mask; | |
1717 | mutex_unlock(&hotkey_thread_data_mutex); | |
1718 | hotkey_read_nvram(&s[so], mask); | |
1719 | ||
1720 | while (!kthread_should_stop() && hotkey_poll_freq) { | |
1721 | if (t == 0) | |
1722 | t = 1000/hotkey_poll_freq; | |
1723 | t = msleep_interruptible(t); | |
1724 | if (unlikely(kthread_should_stop())) | |
1725 | break; | |
1726 | must_reset = try_to_freeze(); | |
1727 | if (t > 0 && !must_reset) | |
1728 | continue; | |
1729 | ||
1730 | mutex_lock(&hotkey_thread_data_mutex); | |
1731 | if (must_reset || hotkey_config_change != change_detector) { | |
1732 | /* forget old state on thaw or config change */ | |
1733 | si = so; | |
1734 | t = 0; | |
1735 | change_detector = hotkey_config_change; | |
1736 | } | |
1737 | mask = hotkey_source_mask & hotkey_mask; | |
1738 | mutex_unlock(&hotkey_thread_data_mutex); | |
1739 | ||
1740 | if (likely(mask)) { | |
1741 | hotkey_read_nvram(&s[si], mask); | |
1742 | if (likely(si != so)) { | |
1743 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
35ff8b9f | 1744 | mask); |
01e88f25 HMH |
1745 | } |
1746 | } | |
1747 | ||
1748 | so = si; | |
1749 | si ^= 1; | |
1750 | } | |
1751 | ||
1752 | exit: | |
1753 | mutex_unlock(&hotkey_thread_mutex); | |
1754 | return 0; | |
1755 | } | |
1756 | ||
1757 | static void hotkey_poll_stop_sync(void) | |
1758 | { | |
1759 | if (tpacpi_hotkey_task) { | |
1760 | if (frozen(tpacpi_hotkey_task) || | |
1761 | freezing(tpacpi_hotkey_task)) | |
1762 | thaw_process(tpacpi_hotkey_task); | |
1763 | ||
1764 | kthread_stop(tpacpi_hotkey_task); | |
1765 | tpacpi_hotkey_task = NULL; | |
1766 | mutex_lock(&hotkey_thread_mutex); | |
1767 | /* at this point, the thread did exit */ | |
1768 | mutex_unlock(&hotkey_thread_mutex); | |
1769 | } | |
1770 | } | |
1771 | ||
1772 | /* call with hotkey_mutex held */ | |
1773 | static void hotkey_poll_setup(int may_warn) | |
1774 | { | |
1775 | if ((hotkey_source_mask & hotkey_mask) != 0 && | |
1776 | hotkey_poll_freq > 0 && | |
1777 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { | |
1778 | if (!tpacpi_hotkey_task) { | |
1779 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 1780 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
1781 | if (IS_ERR(tpacpi_hotkey_task)) { |
1782 | tpacpi_hotkey_task = NULL; | |
35ff8b9f HMH |
1783 | printk(TPACPI_ERR |
1784 | "could not create kernel thread " | |
01e88f25 HMH |
1785 | "for hotkey polling\n"); |
1786 | } | |
1787 | } | |
1788 | } else { | |
1789 | hotkey_poll_stop_sync(); | |
1790 | if (may_warn && | |
1791 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { | |
35ff8b9f HMH |
1792 | printk(TPACPI_NOTICE |
1793 | "hot keys 0x%08x require polling, " | |
01e88f25 HMH |
1794 | "which is currently disabled\n", |
1795 | hotkey_source_mask); | |
1796 | } | |
1797 | } | |
1798 | } | |
1799 | ||
1800 | static void hotkey_poll_setup_safe(int may_warn) | |
1801 | { | |
1802 | mutex_lock(&hotkey_mutex); | |
1803 | hotkey_poll_setup(may_warn); | |
1804 | mutex_unlock(&hotkey_mutex); | |
1805 | } | |
1806 | ||
1bc6b9cd HMH |
1807 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
1808 | ||
1809 | static void hotkey_poll_setup_safe(int __unused) | |
1810 | { | |
1811 | } | |
1812 | ||
1813 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1814 | ||
01e88f25 HMH |
1815 | static int hotkey_inputdev_open(struct input_dev *dev) |
1816 | { | |
1817 | switch (tpacpi_lifecycle) { | |
1818 | case TPACPI_LIFE_INIT: | |
1819 | /* | |
1820 | * hotkey_init will call hotkey_poll_setup_safe | |
1821 | * at the appropriate moment | |
1822 | */ | |
1823 | return 0; | |
1824 | case TPACPI_LIFE_EXITING: | |
1825 | return -EBUSY; | |
1826 | case TPACPI_LIFE_RUNNING: | |
1827 | hotkey_poll_setup_safe(0); | |
1828 | return 0; | |
1829 | } | |
1830 | ||
1831 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
1832 | BUG(); | |
1833 | return -EBUSY; | |
1834 | } | |
1835 | ||
1836 | static void hotkey_inputdev_close(struct input_dev *dev) | |
1837 | { | |
1838 | /* disable hotkey polling when possible */ | |
1839 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) | |
1840 | hotkey_poll_setup_safe(0); | |
1841 | } | |
01e88f25 | 1842 | |
a0416420 HMH |
1843 | /* sysfs hotkey enable ------------------------------------------------- */ |
1844 | static ssize_t hotkey_enable_show(struct device *dev, | |
1845 | struct device_attribute *attr, | |
1846 | char *buf) | |
1847 | { | |
ae92bd17 | 1848 | int res, status; |
a0416420 | 1849 | |
b2c985e7 | 1850 | res = hotkey_status_get(&status); |
a0416420 HMH |
1851 | if (res) |
1852 | return res; | |
1853 | ||
1854 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
1855 | } | |
1856 | ||
1857 | static ssize_t hotkey_enable_store(struct device *dev, | |
1858 | struct device_attribute *attr, | |
1859 | const char *buf, size_t count) | |
1860 | { | |
1861 | unsigned long t; | |
b2c985e7 | 1862 | int res; |
a0416420 HMH |
1863 | |
1864 | if (parse_strtoul(buf, 1, &t)) | |
1865 | return -EINVAL; | |
1866 | ||
b2c985e7 | 1867 | res = hotkey_status_set(t); |
a0416420 HMH |
1868 | |
1869 | return (res) ? res : count; | |
1870 | } | |
1871 | ||
1872 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 1873 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1874 | hotkey_enable_show, hotkey_enable_store); |
1875 | ||
1876 | /* sysfs hotkey mask --------------------------------------------------- */ | |
1877 | static ssize_t hotkey_mask_show(struct device *dev, | |
1878 | struct device_attribute *attr, | |
1879 | char *buf) | |
1880 | { | |
b2c985e7 | 1881 | int res; |
a0416420 | 1882 | |
7646ea88 | 1883 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
1884 | return -ERESTARTSYS; |
1885 | res = hotkey_mask_get(); | |
1886 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 1887 | |
b2c985e7 HMH |
1888 | return (res)? |
1889 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
1890 | } |
1891 | ||
1892 | static ssize_t hotkey_mask_store(struct device *dev, | |
1893 | struct device_attribute *attr, | |
1894 | const char *buf, size_t count) | |
1895 | { | |
1896 | unsigned long t; | |
b2c985e7 | 1897 | int res; |
a0416420 | 1898 | |
ae92bd17 | 1899 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
1900 | return -EINVAL; |
1901 | ||
7646ea88 | 1902 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
1903 | return -ERESTARTSYS; |
1904 | ||
1905 | res = hotkey_mask_set(t); | |
01e88f25 HMH |
1906 | |
1907 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1908 | hotkey_poll_setup(1); | |
1909 | #endif | |
1910 | ||
b2c985e7 | 1911 | mutex_unlock(&hotkey_mutex); |
a0416420 HMH |
1912 | |
1913 | return (res) ? res : count; | |
1914 | } | |
1915 | ||
1916 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 1917 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1918 | hotkey_mask_show, hotkey_mask_store); |
1919 | ||
1920 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
1921 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
1922 | struct device_attribute *attr, | |
1923 | char *buf) | |
1924 | { | |
1925 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
1926 | } | |
1927 | ||
1928 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 1929 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
1930 | |
1931 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
1932 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
1933 | struct device_attribute *attr, | |
1934 | char *buf) | |
1935 | { | |
ae92bd17 | 1936 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
1937 | } |
1938 | ||
1939 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 1940 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 1941 | |
9b010de5 HMH |
1942 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
1943 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
1944 | struct device_attribute *attr, | |
1945 | char *buf) | |
1946 | { | |
01e88f25 HMH |
1947 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
1948 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
1949 | } |
1950 | ||
1951 | static struct device_attribute dev_attr_hotkey_all_mask = | |
1952 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
1953 | ||
1954 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
1955 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
1956 | struct device_attribute *attr, | |
1957 | char *buf) | |
1958 | { | |
1959 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
1960 | (hotkey_all_mask | hotkey_source_mask) |
1961 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
1962 | } |
1963 | ||
1964 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
1965 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
1966 | hotkey_recommended_mask_show, NULL); | |
1967 | ||
01e88f25 HMH |
1968 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1969 | ||
1970 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
1971 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
1972 | struct device_attribute *attr, | |
1973 | char *buf) | |
1974 | { | |
1975 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
1976 | } | |
1977 | ||
1978 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
1979 | struct device_attribute *attr, | |
1980 | const char *buf, size_t count) | |
1981 | { | |
1982 | unsigned long t; | |
1983 | ||
1984 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
1985 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
1986 | return -EINVAL; | |
1987 | ||
7646ea88 | 1988 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
1989 | return -ERESTARTSYS; |
1990 | ||
1991 | HOTKEY_CONFIG_CRITICAL_START | |
1992 | hotkey_source_mask = t; | |
1993 | HOTKEY_CONFIG_CRITICAL_END | |
1994 | ||
1995 | hotkey_poll_setup(1); | |
1996 | ||
1997 | mutex_unlock(&hotkey_mutex); | |
1998 | ||
1999 | return count; | |
2000 | } | |
2001 | ||
2002 | static struct device_attribute dev_attr_hotkey_source_mask = | |
2003 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
2004 | hotkey_source_mask_show, hotkey_source_mask_store); | |
2005 | ||
2006 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
2007 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
2008 | struct device_attribute *attr, | |
2009 | char *buf) | |
2010 | { | |
2011 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
2012 | } | |
2013 | ||
2014 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
2015 | struct device_attribute *attr, | |
2016 | const char *buf, size_t count) | |
2017 | { | |
2018 | unsigned long t; | |
2019 | ||
2020 | if (parse_strtoul(buf, 25, &t)) | |
2021 | return -EINVAL; | |
2022 | ||
7646ea88 | 2023 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2024 | return -ERESTARTSYS; |
2025 | ||
2026 | hotkey_poll_freq = t; | |
2027 | ||
2028 | hotkey_poll_setup(1); | |
2029 | mutex_unlock(&hotkey_mutex); | |
2030 | ||
2031 | return count; | |
2032 | } | |
2033 | ||
2034 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
2035 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
2036 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
2037 | ||
2038 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2039 | ||
50ebec09 | 2040 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
2041 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
2042 | struct device_attribute *attr, | |
2043 | char *buf) | |
2044 | { | |
2045 | int res, s; | |
2046 | res = hotkey_get_wlsw(&s); | |
2047 | if (res < 0) | |
2048 | return res; | |
2049 | ||
2050 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2051 | } | |
2052 | ||
2053 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
2054 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
2055 | ||
50ebec09 HMH |
2056 | static void hotkey_radio_sw_notify_change(void) |
2057 | { | |
2058 | if (tp_features.hotkey_wlsw) | |
2059 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2060 | "hotkey_radio_sw"); | |
2061 | } | |
2062 | ||
6c231bd5 HMH |
2063 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
2064 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
2065 | struct device_attribute *attr, | |
2066 | char *buf) | |
2067 | { | |
2068 | int res, s; | |
2069 | res = hotkey_get_tablet_mode(&s); | |
2070 | if (res < 0) | |
2071 | return res; | |
2072 | ||
2073 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
2074 | } | |
2075 | ||
2076 | static struct device_attribute dev_attr_hotkey_tablet_mode = | |
2077 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); | |
2078 | ||
2079 | static void hotkey_tablet_mode_notify_change(void) | |
2080 | { | |
2081 | if (tp_features.hotkey_tablet) | |
2082 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2083 | "hotkey_tablet_mode"); | |
2084 | } | |
2085 | ||
ff80f137 HMH |
2086 | /* sysfs hotkey report_mode -------------------------------------------- */ |
2087 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
2088 | struct device_attribute *attr, | |
2089 | char *buf) | |
2090 | { | |
2091 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2092 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
2093 | } | |
2094 | ||
2095 | static struct device_attribute dev_attr_hotkey_report_mode = | |
2096 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
2097 | ||
50ebec09 | 2098 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
2099 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
2100 | struct device_attribute *attr, | |
2101 | char *buf) | |
2102 | { | |
2103 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
2104 | } | |
2105 | ||
2106 | static struct device_attribute dev_attr_hotkey_wakeup_reason = | |
2107 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); | |
2108 | ||
1d5a2b54 | 2109 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 HMH |
2110 | { |
2111 | if (tp_features.hotkey_mask) | |
2112 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2113 | "wakeup_reason"); | |
2114 | } | |
2115 | ||
2116 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
2117 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
2118 | struct device_attribute *attr, | |
2119 | char *buf) | |
2120 | { | |
2121 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
2122 | } | |
2123 | ||
2124 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = | |
2125 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, | |
2126 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
2127 | ||
1d5a2b54 | 2128 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 HMH |
2129 | { |
2130 | if (tp_features.hotkey_mask) | |
2131 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2132 | "wakeup_hotunplug_complete"); | |
2133 | } | |
2134 | ||
a0416420 HMH |
2135 | /* --------------------------------------------------------------------- */ |
2136 | ||
ff80f137 HMH |
2137 | static struct attribute *hotkey_attributes[] __initdata = { |
2138 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 2139 | &dev_attr_hotkey_bios_enabled.attr, |
ff80f137 | 2140 | &dev_attr_hotkey_report_mode.attr, |
01e88f25 HMH |
2141 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2142 | &dev_attr_hotkey_mask.attr, | |
2143 | &dev_attr_hotkey_all_mask.attr, | |
2144 | &dev_attr_hotkey_recommended_mask.attr, | |
2145 | &dev_attr_hotkey_source_mask.attr, | |
2146 | &dev_attr_hotkey_poll_freq.attr, | |
2147 | #endif | |
ff80f137 HMH |
2148 | }; |
2149 | ||
2150 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 | 2151 | &dev_attr_hotkey_bios_mask.attr, |
01e88f25 HMH |
2152 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2153 | &dev_attr_hotkey_mask.attr, | |
9b010de5 HMH |
2154 | &dev_attr_hotkey_all_mask.attr, |
2155 | &dev_attr_hotkey_recommended_mask.attr, | |
01e88f25 | 2156 | #endif |
a713b4d7 HMH |
2157 | &dev_attr_hotkey_wakeup_reason.attr, |
2158 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, | |
a0416420 HMH |
2159 | }; |
2160 | ||
0e74dc26 HMH |
2161 | static void bluetooth_update_rfk(void); |
2162 | static void wan_update_rfk(void); | |
0045c0aa | 2163 | static void uwb_update_rfk(void); |
733e27c1 HMH |
2164 | static void tpacpi_send_radiosw_update(void) |
2165 | { | |
2166 | int wlsw; | |
2167 | ||
0e74dc26 HMH |
2168 | /* Sync these BEFORE sending any rfkill events */ |
2169 | if (tp_features.bluetooth) | |
2170 | bluetooth_update_rfk(); | |
2171 | if (tp_features.wan) | |
2172 | wan_update_rfk(); | |
0045c0aa HMH |
2173 | if (tp_features.uwb) |
2174 | uwb_update_rfk(); | |
0e74dc26 | 2175 | |
733e27c1 HMH |
2176 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { |
2177 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2178 | ||
2179 | input_report_switch(tpacpi_inputdev, | |
2180 | SW_RFKILL_ALL, !!wlsw); | |
2181 | input_sync(tpacpi_inputdev); | |
2182 | ||
2183 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2184 | } | |
2185 | hotkey_radio_sw_notify_change(); | |
2186 | } | |
2187 | ||
9c0a76e1 HMH |
2188 | static void hotkey_exit(void) |
2189 | { | |
2190 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
2191 | hotkey_poll_stop_sync(); | |
2192 | #endif | |
2193 | ||
2194 | if (hotkey_dev_attributes) | |
2195 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2196 | ||
2197 | kfree(hotkey_keycode_map); | |
2198 | ||
2199 | if (tp_features.hotkey) { | |
2200 | dbg_printk(TPACPI_DBG_EXIT, | |
2201 | "restoring original hot key mask\n"); | |
2202 | /* no short-circuit boolean operator below! */ | |
2203 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
2204 | hotkey_status_set(hotkey_orig_status)) != 0) | |
2205 | printk(TPACPI_ERR | |
2206 | "failed to restore hot key mask " | |
2207 | "to BIOS defaults\n"); | |
2208 | } | |
2209 | } | |
2210 | ||
a5763f22 | 2211 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 2212 | { |
0f089147 HMH |
2213 | /* Requirements for changing the default keymaps: |
2214 | * | |
2215 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
2216 | * good reasons. Do not change them unless you have deep | |
2217 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
2218 | * the various ThinkPad models. The driver behaves | |
2219 | * differently for KEY_RESERVED: such keys have their | |
2220 | * hot key mask *unset* in mask_recommended, and also | |
2221 | * in the initial hot key mask programmed into the | |
2222 | * firmware at driver load time, which means the firm- | |
2223 | * ware may react very differently if you change them to | |
2224 | * something else; | |
2225 | * | |
2226 | * 2. You must be subscribed to the linux-thinkpad and | |
2227 | * ibm-acpi-devel mailing lists, and you should read the | |
2228 | * list archives since 2007 if you want to change the | |
2229 | * keymaps. This requirement exists so that you will | |
2230 | * know the past history of problems with the thinkpad- | |
2231 | * acpi driver keymaps, and also that you will be | |
2232 | * listening to any bug reports; | |
2233 | * | |
2234 | * 3. Do not send thinkpad-acpi specific patches directly to | |
2235 | * for merging, *ever*. Send them to the linux-acpi | |
2236 | * mailinglist for comments. Merging is to be done only | |
2237 | * through acpi-test and the ACPI maintainer. | |
2238 | * | |
2239 | * If the above is too much to ask, don't change the keymap. | |
2240 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
2241 | */ | |
edf0e0e5 HMH |
2242 | static u16 ibm_keycode_map[] __initdata = { |
2243 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
2244 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
2245 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
2246 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
2247 | |
2248 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
2249 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
2250 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
2251 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
2252 | |
2253 | /* brightness: firmware always reacts to them, unless | |
2254 | * X.org did some tricks in the radeon BIOS scratch | |
2255 | * registers of *some* models */ | |
e927c08d | 2256 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 2257 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
2258 | |
2259 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 2260 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 2261 | |
edf0e0e5 HMH |
2262 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
2263 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
2264 | |
2265 | /* Volume: firmware always react to it and reprograms | |
2266 | * the built-in *extra* mixer. Never map it to control | |
2267 | * another mixer by default. */ | |
e927c08d HMH |
2268 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
2269 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
2270 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 2271 | |
edf0e0e5 | 2272 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 2273 | |
edf0e0e5 HMH |
2274 | /* (assignments unknown, please report if found) */ |
2275 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2276 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2277 | }; | |
2278 | static u16 lenovo_keycode_map[] __initdata = { | |
2279 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
2280 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
2281 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
2282 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
2283 | |
2284 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
2285 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
2286 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
2287 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 2288 | |
b5972796 HMH |
2289 | /* These either have to go through ACPI video, or |
2290 | * act like in the IBM ThinkPads, so don't ever | |
2291 | * enable them by default */ | |
56a185b4 | 2292 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 2293 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 2294 | |
edf0e0e5 | 2295 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 2296 | |
edf0e0e5 HMH |
2297 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
2298 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
2299 | |
2300 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
2301 | * react to it and reprograms the built-in *extra* mixer. | |
2302 | * Never map it to control another mixer by default. | |
2303 | * | |
2304 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
2305 | * these over the regular keyboard, so these are no-ops, | |
2306 | * but there are still weird bugs re. MUTE, so do not | |
2307 | * change unless you get test reports from all Lenovo | |
2308 | * models. May cause the BIOS to interfere with the | |
2309 | * HDA mixer. | |
2310 | */ | |
e927c08d HMH |
2311 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
2312 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
2313 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 2314 | |
edf0e0e5 | 2315 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 2316 | |
edf0e0e5 HMH |
2317 | /* (assignments unknown, please report if found) */ |
2318 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2319 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
2320 | }; | |
2321 | ||
2322 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
2323 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
2324 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
2325 | ||
6a38abbf | 2326 | int res, i; |
74941a69 | 2327 | int status; |
1b6521dc | 2328 | int hkeyv; |
b86c4722 | 2329 | |
fe08bc4b HMH |
2330 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
2331 | ||
6a38abbf | 2332 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
2333 | BUG_ON(tpacpi_inputdev->open != NULL || |
2334 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 2335 | |
e0c7dfe7 | 2336 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 2337 | mutex_init(&hotkey_mutex); |
5fba344c | 2338 | |
01e88f25 HMH |
2339 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2340 | mutex_init(&hotkey_thread_mutex); | |
2341 | mutex_init(&hotkey_thread_data_mutex); | |
2342 | #endif | |
2343 | ||
56b6aeb0 | 2344 | /* hotkey not supported on 570 */ |
d8fd94d9 | 2345 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 2346 | |
fe08bc4b | 2347 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 2348 | str_supported(tp_features.hotkey)); |
fe08bc4b | 2349 | |
9c0a76e1 HMH |
2350 | if (!tp_features.hotkey) |
2351 | return 1; | |
a0416420 | 2352 | |
d64c81c4 HMH |
2353 | tpacpi_disable_brightness_delay(); |
2354 | ||
9c0a76e1 HMH |
2355 | hotkey_dev_attributes = create_attr_set(13, NULL); |
2356 | if (!hotkey_dev_attributes) | |
2357 | return -ENOMEM; | |
2358 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
2359 | hotkey_attributes, | |
2360 | ARRAY_SIZE(hotkey_attributes)); | |
2361 | if (res) | |
2362 | goto err_exit; | |
2363 | ||
2364 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, | |
2365 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking | |
2366 | for HKEY interface version 0x100 */ | |
2367 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
2368 | if ((hkeyv >> 8) != 1) { | |
2369 | printk(TPACPI_ERR "unknown version of the " | |
2370 | "HKEY interface: 0x%x\n", hkeyv); | |
2371 | printk(TPACPI_ERR "please report this to %s\n", | |
2372 | TPACPI_MAIL); | |
2373 | } else { | |
2374 | /* | |
2375 | * MHKV 0x100 in A31, R40, R40e, | |
2376 | * T4x, X31, and later | |
2377 | */ | |
2378 | tp_features.hotkey_mask = 1; | |
1b6521dc | 2379 | } |
9c0a76e1 | 2380 | } |
56b6aeb0 | 2381 | |
9c0a76e1 HMH |
2382 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
2383 | str_supported(tp_features.hotkey_mask)); | |
fe08bc4b | 2384 | |
9c0a76e1 HMH |
2385 | if (tp_features.hotkey_mask) { |
2386 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
2387 | "MHKA", "qd")) { | |
2388 | printk(TPACPI_ERR | |
2389 | "missing MHKA handler, " | |
2390 | "please report this to %s\n", | |
2391 | TPACPI_MAIL); | |
2392 | /* FN+F12, FN+F4, FN+F3 */ | |
2393 | hotkey_all_mask = 0x080cU; | |
9b010de5 | 2394 | } |
9c0a76e1 | 2395 | } |
9b010de5 | 2396 | |
9c0a76e1 HMH |
2397 | /* hotkey_source_mask *must* be zero for |
2398 | * the first hotkey_mask_get */ | |
2399 | res = hotkey_status_get(&hotkey_orig_status); | |
2400 | if (res) | |
2401 | goto err_exit; | |
2402 | ||
2403 | if (tp_features.hotkey_mask) { | |
2404 | res = hotkey_mask_get(); | |
2405 | if (res) | |
2406 | goto err_exit; | |
2407 | ||
2408 | hotkey_orig_mask = hotkey_mask; | |
2409 | res = add_many_to_attr_set( | |
2410 | hotkey_dev_attributes, | |
2411 | hotkey_mask_attributes, | |
2412 | ARRAY_SIZE(hotkey_mask_attributes)); | |
2413 | if (res) | |
2414 | goto err_exit; | |
2415 | } | |
74941a69 | 2416 | |
01e88f25 | 2417 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
9c0a76e1 HMH |
2418 | if (tp_features.hotkey_mask) { |
2419 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK | |
2420 | & ~hotkey_all_mask; | |
2421 | } else { | |
2422 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; | |
2423 | } | |
01e88f25 | 2424 | |
9c0a76e1 HMH |
2425 | vdbg_printk(TPACPI_DBG_INIT, |
2426 | "hotkey source mask 0x%08x, polling freq %d\n", | |
2427 | hotkey_source_mask, hotkey_poll_freq); | |
01e88f25 HMH |
2428 | #endif |
2429 | ||
a73f3091 HMH |
2430 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
2431 | if (dbg_wlswemul) { | |
2432 | tp_features.hotkey_wlsw = 1; | |
2433 | printk(TPACPI_INFO | |
2434 | "radio switch emulation enabled\n"); | |
2435 | } else | |
2436 | #endif | |
9c0a76e1 HMH |
2437 | /* Not all thinkpads have a hardware radio switch */ |
2438 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
2439 | tp_features.hotkey_wlsw = 1; | |
2440 | printk(TPACPI_INFO | |
2441 | "radio switch found; radios are %s\n", | |
2442 | enabled(status, 0)); | |
3a872080 HMH |
2443 | } |
2444 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
2445 | res = add_to_attr_set(hotkey_dev_attributes, |
2446 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 2447 | |
9c0a76e1 HMH |
2448 | /* For X41t, X60t, X61t Tablets... */ |
2449 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { | |
2450 | tp_features.hotkey_tablet = 1; | |
2451 | printk(TPACPI_INFO | |
2452 | "possible tablet mode switch found; " | |
2453 | "ThinkPad in %s mode\n", | |
2454 | (status & TP_HOTKEY_TABLET_MASK)? | |
2455 | "tablet" : "laptop"); | |
2456 | res = add_to_attr_set(hotkey_dev_attributes, | |
2457 | &dev_attr_hotkey_tablet_mode.attr); | |
2458 | } | |
6c231bd5 | 2459 | |
9c0a76e1 HMH |
2460 | if (!res) |
2461 | res = register_attr_set_with_sysfs( | |
2462 | hotkey_dev_attributes, | |
2463 | &tpacpi_pdev->dev.kobj); | |
2464 | if (res) | |
2465 | goto err_exit; | |
6a38abbf | 2466 | |
9c0a76e1 | 2467 | /* Set up key map */ |
edf0e0e5 | 2468 | |
9c0a76e1 HMH |
2469 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, |
2470 | GFP_KERNEL); | |
2471 | if (!hotkey_keycode_map) { | |
2472 | printk(TPACPI_ERR | |
2473 | "failed to allocate memory for key map\n"); | |
2474 | res = -ENOMEM; | |
2475 | goto err_exit; | |
2476 | } | |
edf0e0e5 | 2477 | |
9c0a76e1 HMH |
2478 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { |
2479 | dbg_printk(TPACPI_DBG_INIT, | |
2480 | "using Lenovo default hot key map\n"); | |
2481 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
2482 | TPACPI_HOTKEY_MAP_SIZE); | |
2483 | } else { | |
2484 | dbg_printk(TPACPI_DBG_INIT, | |
2485 | "using IBM default hot key map\n"); | |
2486 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
2487 | TPACPI_HOTKEY_MAP_SIZE); | |
2488 | } | |
edf0e0e5 | 2489 | |
9c0a76e1 HMH |
2490 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
2491 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
2492 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
2493 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; | |
2494 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
2495 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
2496 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
2497 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
2498 | set_bit(hotkey_keycode_map[i], | |
2499 | tpacpi_inputdev->keybit); | |
2500 | } else { | |
2501 | if (i < sizeof(hotkey_reserved_mask)*8) | |
2502 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 2503 | } |
9c0a76e1 | 2504 | } |
6a38abbf | 2505 | |
9c0a76e1 HMH |
2506 | if (tp_features.hotkey_wlsw) { |
2507 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
2508 | set_bit(SW_RFKILL_ALL, tpacpi_inputdev->swbit); | |
2509 | } | |
2510 | if (tp_features.hotkey_tablet) { | |
2511 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
2512 | set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit); | |
2513 | } | |
5c29d58f | 2514 | |
9c0a76e1 HMH |
2515 | /* Do not issue duplicate brightness change events to |
2516 | * userspace */ | |
2517 | if (!tp_features.bright_acpimode) | |
2518 | /* update bright_acpimode... */ | |
2519 | tpacpi_check_std_acpi_brightness_support(); | |
b5972796 | 2520 | |
9c0a76e1 HMH |
2521 | if (tp_features.bright_acpimode) { |
2522 | printk(TPACPI_INFO | |
2523 | "This ThinkPad has standard ACPI backlight " | |
2524 | "brightness control, supported by the ACPI " | |
2525 | "video driver\n"); | |
2526 | printk(TPACPI_NOTICE | |
2527 | "Disabling thinkpad-acpi brightness events " | |
2528 | "by default...\n"); | |
2529 | ||
2530 | /* The hotkey_reserved_mask change below is not | |
2531 | * necessary while the keys are at KEY_RESERVED in the | |
2532 | * default map, but better safe than sorry, leave it | |
2533 | * here as a marker of what we have to do, especially | |
2534 | * when we finally become able to set this at runtime | |
2535 | * on response to X.org requests */ | |
2536 | hotkey_reserved_mask |= | |
2537 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
2538 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
2539 | } | |
ff80f137 | 2540 | |
9c0a76e1 HMH |
2541 | dbg_printk(TPACPI_DBG_INIT, "enabling hot key handling\n"); |
2542 | res = hotkey_status_set(1); | |
2543 | if (res) { | |
2544 | hotkey_exit(); | |
2545 | return res; | |
2546 | } | |
2547 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) | |
2548 | & ~hotkey_reserved_mask) | |
2549 | | hotkey_orig_mask); | |
2550 | if (res < 0 && res != -ENXIO) { | |
2551 | hotkey_exit(); | |
2552 | return res; | |
2553 | } | |
01e88f25 | 2554 | |
9c0a76e1 HMH |
2555 | dbg_printk(TPACPI_DBG_INIT, |
2556 | "legacy hot key reporting over procfs %s\n", | |
2557 | (hotkey_report_mode < 2) ? | |
2558 | "enabled" : "disabled"); | |
01e88f25 | 2559 | |
9c0a76e1 HMH |
2560 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
2561 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 2562 | |
9c0a76e1 | 2563 | hotkey_poll_setup_safe(1); |
733e27c1 | 2564 | tpacpi_send_radiosw_update(); |
9c0a76e1 | 2565 | tpacpi_input_send_tabletsw(); |
56b6aeb0 | 2566 | |
9c0a76e1 | 2567 | return 0; |
01e88f25 | 2568 | |
9c0a76e1 HMH |
2569 | err_exit: |
2570 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
2571 | hotkey_dev_attributes = NULL; | |
a0416420 | 2572 | |
9c0a76e1 | 2573 | return (res < 0)? res : 1; |
56b6aeb0 HMH |
2574 | } |
2575 | ||
3827e7a3 HMH |
2576 | static bool hotkey_notify_hotkey(const u32 hkey, |
2577 | bool *send_acpi_ev, | |
2578 | bool *ignore_acpi_ev) | |
2579 | { | |
2580 | /* 0x1000-0x1FFF: key presses */ | |
2581 | unsigned int scancode = hkey & 0xfff; | |
2582 | *send_acpi_ev = true; | |
2583 | *ignore_acpi_ev = false; | |
2584 | ||
2585 | if (scancode > 0 && scancode < 0x21) { | |
2586 | scancode--; | |
2587 | if (!(hotkey_source_mask & (1 << scancode))) { | |
2588 | tpacpi_input_send_key(scancode); | |
2589 | *send_acpi_ev = false; | |
2590 | } else { | |
2591 | *ignore_acpi_ev = true; | |
2592 | } | |
2593 | return true; | |
2594 | } | |
2595 | return false; | |
2596 | } | |
2597 | ||
2598 | static bool hotkey_notify_wakeup(const u32 hkey, | |
2599 | bool *send_acpi_ev, | |
2600 | bool *ignore_acpi_ev) | |
2601 | { | |
2602 | /* 0x2000-0x2FFF: Wakeup reason */ | |
2603 | *send_acpi_ev = true; | |
2604 | *ignore_acpi_ev = false; | |
2605 | ||
2606 | switch (hkey) { | |
2607 | case 0x2304: /* suspend, undock */ | |
2608 | case 0x2404: /* hibernation, undock */ | |
2609 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; | |
2610 | *ignore_acpi_ev = true; | |
2611 | break; | |
2612 | ||
2613 | case 0x2305: /* suspend, bay eject */ | |
2614 | case 0x2405: /* hibernation, bay eject */ | |
2615 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; | |
2616 | *ignore_acpi_ev = true; | |
2617 | break; | |
2618 | ||
106b4e66 HMH |
2619 | case 0x2313: /* Battery on critical low level (S3) */ |
2620 | case 0x2413: /* Battery on critical low level (S4) */ | |
2621 | printk(TPACPI_ALERT | |
2622 | "EMERGENCY WAKEUP: battery almost empty\n"); | |
2623 | /* how to auto-heal: */ | |
2624 | /* 2313: woke up from S3, go to S4/S5 */ | |
2625 | /* 2413: woke up from S4, go to S5 */ | |
2626 | break; | |
2627 | ||
3827e7a3 HMH |
2628 | default: |
2629 | return false; | |
2630 | } | |
2631 | ||
2632 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
2633 | printk(TPACPI_INFO | |
2634 | "woke up due to a hot-unplug " | |
2635 | "request...\n"); | |
2636 | hotkey_wakeup_reason_notify_change(); | |
2637 | } | |
2638 | return true; | |
2639 | } | |
2640 | ||
2641 | static bool hotkey_notify_usrevent(const u32 hkey, | |
2642 | bool *send_acpi_ev, | |
2643 | bool *ignore_acpi_ev) | |
2644 | { | |
2645 | /* 0x5000-0x5FFF: human interface helpers */ | |
2646 | *send_acpi_ev = true; | |
2647 | *ignore_acpi_ev = false; | |
2648 | ||
2649 | switch (hkey) { | |
2650 | case 0x5010: /* Lenovo new BIOS: brightness changed */ | |
2651 | case 0x500b: /* X61t: tablet pen inserted into bay */ | |
2652 | case 0x500c: /* X61t: tablet pen removed from bay */ | |
2653 | return true; | |
2654 | ||
2655 | case 0x5009: /* X41t-X61t: swivel up (tablet mode) */ | |
2656 | case 0x500a: /* X41t-X61t: swivel down (normal mode) */ | |
2657 | tpacpi_input_send_tabletsw(); | |
2658 | hotkey_tablet_mode_notify_change(); | |
2659 | *send_acpi_ev = false; | |
2660 | return true; | |
2661 | ||
2662 | case 0x5001: | |
2663 | case 0x5002: | |
2664 | /* LID switch events. Do not propagate */ | |
2665 | *ignore_acpi_ev = true; | |
2666 | return true; | |
2667 | ||
2668 | default: | |
2669 | return false; | |
2670 | } | |
2671 | } | |
2672 | ||
106b4e66 HMH |
2673 | static bool hotkey_notify_thermal(const u32 hkey, |
2674 | bool *send_acpi_ev, | |
2675 | bool *ignore_acpi_ev) | |
2676 | { | |
2677 | /* 0x6000-0x6FFF: thermal alarms */ | |
2678 | *send_acpi_ev = true; | |
2679 | *ignore_acpi_ev = false; | |
2680 | ||
2681 | switch (hkey) { | |
2682 | case 0x6011: | |
2683 | printk(TPACPI_CRIT | |
2684 | "THERMAL ALARM: battery is too hot!\n"); | |
2685 | /* recommended action: warn user through gui */ | |
2686 | return true; | |
2687 | case 0x6012: | |
2688 | printk(TPACPI_ALERT | |
2689 | "THERMAL EMERGENCY: battery is extremely hot!\n"); | |
2690 | /* recommended action: immediate sleep/hibernate */ | |
2691 | return true; | |
2692 | case 0x6021: | |
2693 | printk(TPACPI_CRIT | |
2694 | "THERMAL ALARM: " | |
2695 | "a sensor reports something is too hot!\n"); | |
2696 | /* recommended action: warn user through gui, that */ | |
2697 | /* some internal component is too hot */ | |
2698 | return true; | |
2699 | case 0x6022: | |
2700 | printk(TPACPI_ALERT | |
2701 | "THERMAL EMERGENCY: " | |
2702 | "a sensor reports something is extremely hot!\n"); | |
2703 | /* recommended action: immediate sleep/hibernate */ | |
2704 | return true; | |
54926ce8 HMH |
2705 | case 0x6030: |
2706 | printk(TPACPI_INFO | |
2707 | "EC reports that Thermal Table has changed\n"); | |
2708 | /* recommended action: do nothing, we don't have | |
2709 | * Lenovo ATM information */ | |
2710 | return true; | |
106b4e66 HMH |
2711 | default: |
2712 | printk(TPACPI_ALERT | |
2713 | "THERMAL ALERT: unknown thermal alarm received\n"); | |
2714 | return false; | |
2715 | } | |
2716 | } | |
2717 | ||
56b6aeb0 HMH |
2718 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
2719 | { | |
6a38abbf | 2720 | u32 hkey; |
3827e7a3 HMH |
2721 | bool send_acpi_ev; |
2722 | bool ignore_acpi_ev; | |
2723 | bool known_ev; | |
3eea123d HMH |
2724 | |
2725 | if (event != 0x80) { | |
35ff8b9f HMH |
2726 | printk(TPACPI_ERR |
2727 | "unknown HKEY notification event %d\n", event); | |
3eea123d | 2728 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
2729 | acpi_bus_generate_netlink_event( |
2730 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 2731 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 2732 | event, 0); |
3eea123d HMH |
2733 | return; |
2734 | } | |
2735 | ||
2736 | while (1) { | |
2737 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 2738 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
2739 | return; |
2740 | } | |
2741 | ||
2742 | if (hkey == 0) { | |
2743 | /* queue empty */ | |
2744 | return; | |
2745 | } | |
2746 | ||
3827e7a3 HMH |
2747 | send_acpi_ev = true; |
2748 | ignore_acpi_ev = false; | |
56b6aeb0 | 2749 | |
ff80f137 HMH |
2750 | switch (hkey >> 12) { |
2751 | case 1: | |
2752 | /* 0x1000-0x1FFF: key presses */ | |
3827e7a3 HMH |
2753 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
2754 | &ignore_acpi_ev); | |
ff80f137 | 2755 | break; |
a713b4d7 | 2756 | case 2: |
3827e7a3 HMH |
2757 | /* 0x2000-0x2FFF: Wakeup reason */ |
2758 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, | |
2759 | &ignore_acpi_ev); | |
a713b4d7 HMH |
2760 | break; |
2761 | case 3: | |
3827e7a3 | 2762 | /* 0x3000-0x3FFF: bay-related wakeups */ |
a713b4d7 HMH |
2763 | if (hkey == 0x3003) { |
2764 | hotkey_autosleep_ack = 1; | |
2765 | printk(TPACPI_INFO | |
2766 | "bay ejected\n"); | |
50ebec09 | 2767 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 2768 | known_ev = true; |
a713b4d7 | 2769 | } else { |
3827e7a3 | 2770 | known_ev = false; |
a713b4d7 HMH |
2771 | } |
2772 | break; | |
2773 | case 4: | |
3827e7a3 | 2774 | /* 0x4000-0x4FFF: dock-related wakeups */ |
a713b4d7 HMH |
2775 | if (hkey == 0x4003) { |
2776 | hotkey_autosleep_ack = 1; | |
2777 | printk(TPACPI_INFO | |
2778 | "undocked\n"); | |
50ebec09 | 2779 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 2780 | known_ev = true; |
a713b4d7 | 2781 | } else { |
3827e7a3 | 2782 | known_ev = false; |
a713b4d7 HMH |
2783 | } |
2784 | break; | |
ff80f137 | 2785 | case 5: |
d1edb2b5 | 2786 | /* 0x5000-0x5FFF: human interface helpers */ |
3827e7a3 HMH |
2787 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
2788 | &ignore_acpi_ev); | |
ff80f137 | 2789 | break; |
106b4e66 HMH |
2790 | case 6: |
2791 | /* 0x6000-0x6FFF: thermal alarms */ | |
2792 | known_ev = hotkey_notify_thermal(hkey, &send_acpi_ev, | |
2793 | &ignore_acpi_ev); | |
2794 | break; | |
ff80f137 HMH |
2795 | case 7: |
2796 | /* 0x7000-0x7FFF: misc */ | |
2797 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
733e27c1 | 2798 | tpacpi_send_radiosw_update(); |
3b64b51d | 2799 | send_acpi_ev = 0; |
3827e7a3 | 2800 | known_ev = true; |
6a38abbf | 2801 | break; |
6a38abbf | 2802 | } |
ff80f137 HMH |
2803 | /* fallthrough to default */ |
2804 | default: | |
3827e7a3 | 2805 | known_ev = false; |
3b64b51d | 2806 | } |
3827e7a3 | 2807 | if (!known_ev) { |
35ff8b9f HMH |
2808 | printk(TPACPI_NOTICE |
2809 | "unhandled HKEY event 0x%04x\n", hkey); | |
cb429358 HMH |
2810 | printk(TPACPI_NOTICE |
2811 | "please report the conditions when this " | |
2812 | "event happened to %s\n", TPACPI_MAIL); | |
6a38abbf | 2813 | } |
ff80f137 | 2814 | |
3eea123d | 2815 | /* Legacy events */ |
35ff8b9f HMH |
2816 | if (!ignore_acpi_ev && |
2817 | (send_acpi_ev || hotkey_report_mode < 2)) { | |
2818 | acpi_bus_generate_proc_event(ibm->acpi->device, | |
2819 | event, hkey); | |
3e5ce914 | 2820 | } |
ff80f137 | 2821 | |
3eea123d | 2822 | /* netlink events */ |
3e5ce914 | 2823 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
2824 | acpi_bus_generate_netlink_event( |
2825 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 2826 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 2827 | event, hkey); |
3eea123d | 2828 | } |
56b6aeb0 HMH |
2829 | } |
2830 | } | |
2831 | ||
a713b4d7 HMH |
2832 | static void hotkey_suspend(pm_message_t state) |
2833 | { | |
2834 | /* Do these on suspend, we get the events on early resume! */ | |
2835 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
2836 | hotkey_autosleep_ack = 0; | |
2837 | } | |
2838 | ||
5c29d58f HMH |
2839 | static void hotkey_resume(void) |
2840 | { | |
d64c81c4 HMH |
2841 | tpacpi_disable_brightness_delay(); |
2842 | ||
b2c985e7 | 2843 | if (hotkey_mask_get()) |
35ff8b9f HMH |
2844 | printk(TPACPI_ERR |
2845 | "error while trying to read hot key mask " | |
2846 | "from firmware\n"); | |
733e27c1 | 2847 | tpacpi_send_radiosw_update(); |
6c231bd5 | 2848 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
2849 | hotkey_wakeup_reason_notify_change(); |
2850 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
01e88f25 | 2851 | hotkey_poll_setup_safe(0); |
5c29d58f HMH |
2852 | } |
2853 | ||
a0416420 | 2854 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2855 | static int hotkey_read(char *p) |
1da177e4 | 2856 | { |
ae92bd17 | 2857 | int res, status; |
1da177e4 LT |
2858 | int len = 0; |
2859 | ||
d8fd94d9 | 2860 | if (!tp_features.hotkey) { |
78f81cc4 BD |
2861 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2862 | return len; | |
2863 | } | |
2864 | ||
7646ea88 | 2865 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 2866 | return -ERESTARTSYS; |
b2c985e7 HMH |
2867 | res = hotkey_status_get(&status); |
2868 | if (!res) | |
2869 | res = hotkey_mask_get(); | |
40ca9fdf | 2870 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
2871 | if (res) |
2872 | return res; | |
1da177e4 LT |
2873 | |
2874 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 2875 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2876 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
2877 | len += sprintf(p + len, |
2878 | "commands:\tenable, disable, reset, <mask>\n"); | |
2879 | } else { | |
2880 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
2881 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
2882 | } | |
2883 | ||
2884 | return len; | |
2885 | } | |
2886 | ||
78f81cc4 | 2887 | static int hotkey_write(char *buf) |
1da177e4 | 2888 | { |
ae92bd17 HMH |
2889 | int res, status; |
2890 | u32 mask; | |
1da177e4 | 2891 | char *cmd; |
1da177e4 | 2892 | |
d8fd94d9 | 2893 | if (!tp_features.hotkey) |
1da177e4 LT |
2894 | return -ENODEV; |
2895 | ||
7646ea88 | 2896 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 2897 | return -ERESTARTSYS; |
40ca9fdf | 2898 | |
b2c985e7 HMH |
2899 | status = -1; |
2900 | mask = hotkey_mask; | |
78f81cc4 | 2901 | |
40ca9fdf | 2902 | res = 0; |
1da177e4 LT |
2903 | while ((cmd = next_cmd(&buf))) { |
2904 | if (strlencmp(cmd, "enable") == 0) { | |
2905 | status = 1; | |
2906 | } else if (strlencmp(cmd, "disable") == 0) { | |
2907 | status = 0; | |
2908 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
2909 | status = hotkey_orig_status; |
2910 | mask = hotkey_orig_mask; | |
1da177e4 LT |
2911 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
2912 | /* mask set */ | |
2913 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
2914 | /* mask set */ | |
40ca9fdf HMH |
2915 | } else { |
2916 | res = -EINVAL; | |
2917 | goto errexit; | |
2918 | } | |
1da177e4 | 2919 | } |
b2c985e7 HMH |
2920 | if (status != -1) |
2921 | res = hotkey_status_set(status); | |
1da177e4 | 2922 | |
b2c985e7 HMH |
2923 | if (!res && mask != hotkey_mask) |
2924 | res = hotkey_mask_set(mask); | |
1da177e4 | 2925 | |
40ca9fdf HMH |
2926 | errexit: |
2927 | mutex_unlock(&hotkey_mutex); | |
2928 | return res; | |
78f81cc4 | 2929 | } |
1da177e4 | 2930 | |
1ba90e3a | 2931 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
e0c7dfe7 | 2932 | {TPACPI_ACPI_HKEY_HID, 0}, |
1ba90e3a TR |
2933 | {"", 0}, |
2934 | }; | |
2935 | ||
8d376cd6 | 2936 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 2937 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
2938 | .notify = hotkey_notify, |
2939 | .handle = &hkey_handle, | |
2940 | .type = ACPI_DEVICE_NOTIFY, | |
2941 | }; | |
2942 | ||
a5763f22 HMH |
2943 | static struct ibm_struct hotkey_driver_data = { |
2944 | .name = "hotkey", | |
a5763f22 HMH |
2945 | .read = hotkey_read, |
2946 | .write = hotkey_write, | |
2947 | .exit = hotkey_exit, | |
5c29d58f | 2948 | .resume = hotkey_resume, |
a713b4d7 | 2949 | .suspend = hotkey_suspend, |
8d376cd6 | 2950 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
2951 | }; |
2952 | ||
56b6aeb0 HMH |
2953 | /************************************************************************* |
2954 | * Bluetooth subdriver | |
2955 | */ | |
1da177e4 | 2956 | |
f74a27d4 HMH |
2957 | enum { |
2958 | /* ACPI GBDC/SBDC bits */ | |
2959 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
2960 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 HMH |
2961 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
2962 | off / last state */ | |
2963 | }; | |
2964 | ||
2965 | enum { | |
2966 | /* ACPI \BLTH commands */ | |
2967 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
2968 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
2969 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
2970 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
2971 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
2972 | }; |
2973 | ||
0e74dc26 HMH |
2974 | static struct rfkill *tpacpi_bluetooth_rfkill; |
2975 | ||
153f8220 HMH |
2976 | static void bluetooth_suspend(pm_message_t state) |
2977 | { | |
2978 | /* Try to make sure radio will resume powered off */ | |
2979 | acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
2980 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME); | |
2981 | } | |
2982 | ||
07431ec8 HMH |
2983 | static int bluetooth_get_radiosw(void) |
2984 | { | |
2985 | int status; | |
2986 | ||
2987 | if (!tp_features.bluetooth) | |
2988 | return -ENODEV; | |
2989 | ||
133ec3bd HMH |
2990 | /* WLSW overrides bluetooth in firmware/hardware, reflect that */ |
2991 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) | |
0e74dc26 | 2992 | return RFKILL_STATE_HARD_BLOCKED; |
133ec3bd | 2993 | |
a73f3091 HMH |
2994 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
2995 | if (dbg_bluetoothemul) | |
2996 | return (tpacpi_bluetooth_emulstate) ? | |
2997 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
2998 | #endif | |
2999 | ||
07431ec8 HMH |
3000 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
3001 | return -EIO; | |
3002 | ||
0e74dc26 HMH |
3003 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
3004 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
07431ec8 HMH |
3005 | } |
3006 | ||
0e74dc26 HMH |
3007 | static void bluetooth_update_rfk(void) |
3008 | { | |
3009 | int status; | |
3010 | ||
3011 | if (!tpacpi_bluetooth_rfkill) | |
3012 | return; | |
3013 | ||
3014 | status = bluetooth_get_radiosw(); | |
3015 | if (status < 0) | |
3016 | return; | |
3017 | rfkill_force_state(tpacpi_bluetooth_rfkill, status); | |
3018 | } | |
3019 | ||
3020 | static int bluetooth_set_radiosw(int radio_on, int update_rfk) | |
07431ec8 HMH |
3021 | { |
3022 | int status; | |
3023 | ||
3024 | if (!tp_features.bluetooth) | |
3025 | return -ENODEV; | |
3026 | ||
133ec3bd HMH |
3027 | /* WLSW overrides bluetooth in firmware/hardware, but there is no |
3028 | * reason to risk weird behaviour. */ | |
3029 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status | |
3030 | && radio_on) | |
3031 | return -EPERM; | |
3032 | ||
a73f3091 HMH |
3033 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3034 | if (dbg_bluetoothemul) { | |
3035 | tpacpi_bluetooth_emulstate = !!radio_on; | |
3036 | if (update_rfk) | |
3037 | bluetooth_update_rfk(); | |
3038 | return 0; | |
3039 | } | |
3040 | #endif | |
3041 | ||
153f8220 | 3042 | /* We make sure to keep TP_ACPI_BLUETOOTH_RESUMECTRL off */ |
07431ec8 | 3043 | if (radio_on) |
153f8220 | 3044 | status = TP_ACPI_BLUETOOTH_RADIOSSW; |
07431ec8 | 3045 | else |
153f8220 | 3046 | status = 0; |
07431ec8 HMH |
3047 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
3048 | return -EIO; | |
3049 | ||
0e74dc26 HMH |
3050 | if (update_rfk) |
3051 | bluetooth_update_rfk(); | |
3052 | ||
07431ec8 HMH |
3053 | return 0; |
3054 | } | |
f74a27d4 | 3055 | |
d3a6ade4 HMH |
3056 | /* sysfs bluetooth enable ---------------------------------------------- */ |
3057 | static ssize_t bluetooth_enable_show(struct device *dev, | |
3058 | struct device_attribute *attr, | |
3059 | char *buf) | |
3060 | { | |
3061 | int status; | |
3062 | ||
3063 | status = bluetooth_get_radiosw(); | |
3064 | if (status < 0) | |
3065 | return status; | |
3066 | ||
0e74dc26 HMH |
3067 | return snprintf(buf, PAGE_SIZE, "%d\n", |
3068 | (status == RFKILL_STATE_UNBLOCKED) ? 1 : 0); | |
d3a6ade4 HMH |
3069 | } |
3070 | ||
3071 | static ssize_t bluetooth_enable_store(struct device *dev, | |
3072 | struct device_attribute *attr, | |
3073 | const char *buf, size_t count) | |
3074 | { | |
3075 | unsigned long t; | |
3076 | int res; | |
3077 | ||
3078 | if (parse_strtoul(buf, 1, &t)) | |
3079 | return -EINVAL; | |
3080 | ||
0e74dc26 | 3081 | res = bluetooth_set_radiosw(t, 1); |
d3a6ade4 HMH |
3082 | |
3083 | return (res) ? res : count; | |
3084 | } | |
3085 | ||
3086 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 3087 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
3088 | bluetooth_enable_show, bluetooth_enable_store); |
3089 | ||
3090 | /* --------------------------------------------------------------------- */ | |
3091 | ||
3092 | static struct attribute *bluetooth_attributes[] = { | |
3093 | &dev_attr_bluetooth_enable.attr, | |
3094 | NULL | |
3095 | }; | |
3096 | ||
3097 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
3098 | .attrs = bluetooth_attributes, |
3099 | }; | |
3100 | ||
0e74dc26 HMH |
3101 | static int tpacpi_bluetooth_rfk_get(void *data, enum rfkill_state *state) |
3102 | { | |
3103 | int bts = bluetooth_get_radiosw(); | |
3104 | ||
3105 | if (bts < 0) | |
3106 | return bts; | |
3107 | ||
3108 | *state = bts; | |
3109 | return 0; | |
3110 | } | |
3111 | ||
3112 | static int tpacpi_bluetooth_rfk_set(void *data, enum rfkill_state state) | |
3113 | { | |
3114 | return bluetooth_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); | |
3115 | } | |
3116 | ||
90d9d3c7 HMH |
3117 | static void bluetooth_shutdown(void) |
3118 | { | |
3119 | /* Order firmware to save current state to NVRAM */ | |
3120 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
3121 | TP_ACPI_BLTH_SAVE_STATE)) | |
3122 | printk(TPACPI_NOTICE | |
3123 | "failed to save bluetooth state to NVRAM\n"); | |
3124 | } | |
3125 | ||
07431ec8 HMH |
3126 | static void bluetooth_exit(void) |
3127 | { | |
90d9d3c7 HMH |
3128 | bluetooth_shutdown(); |
3129 | ||
0e74dc26 HMH |
3130 | if (tpacpi_bluetooth_rfkill) |
3131 | rfkill_unregister(tpacpi_bluetooth_rfkill); | |
3132 | ||
07431ec8 HMH |
3133 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
3134 | &bluetooth_attr_group); | |
3135 | } | |
3136 | ||
a5763f22 | 3137 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 3138 | { |
d3a6ade4 | 3139 | int res; |
d6fdd1e9 HMH |
3140 | int status = 0; |
3141 | ||
fe08bc4b HMH |
3142 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
3143 | ||
e0c7dfe7 | 3144 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 3145 | |
78f81cc4 BD |
3146 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
3147 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 3148 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
3149 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
3150 | ||
3151 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
3152 | str_supported(tp_features.bluetooth), | |
3153 | status); | |
3154 | ||
a73f3091 HMH |
3155 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3156 | if (dbg_bluetoothemul) { | |
3157 | tp_features.bluetooth = 1; | |
3158 | printk(TPACPI_INFO | |
3159 | "bluetooth switch emulation enabled\n"); | |
3160 | } else | |
3161 | #endif | |
3a872080 HMH |
3162 | if (tp_features.bluetooth && |
3163 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
3164 | /* no bluetooth hardware present in system */ | |
3165 | tp_features.bluetooth = 0; | |
3166 | dbg_printk(TPACPI_DBG_INIT, | |
3167 | "bluetooth hardware not installed\n"); | |
3168 | } | |
3169 | ||
0e74dc26 HMH |
3170 | if (!tp_features.bluetooth) |
3171 | return 1; | |
3172 | ||
3173 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
3a872080 | 3174 | &bluetooth_attr_group); |
0e74dc26 HMH |
3175 | if (res) |
3176 | return res; | |
3177 | ||
3178 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, | |
3179 | &tpacpi_bluetooth_rfkill, | |
3180 | RFKILL_TYPE_BLUETOOTH, | |
3181 | "tpacpi_bluetooth_sw", | |
0045c0aa | 3182 | true, |
0e74dc26 HMH |
3183 | tpacpi_bluetooth_rfk_set, |
3184 | tpacpi_bluetooth_rfk_get); | |
3185 | if (res) { | |
3186 | bluetooth_exit(); | |
3187 | return res; | |
d6fdd1e9 | 3188 | } |
fe08bc4b | 3189 | |
0e74dc26 | 3190 | return 0; |
1da177e4 LT |
3191 | } |
3192 | ||
d3a6ade4 | 3193 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 3194 | static int bluetooth_read(char *p) |
1da177e4 LT |
3195 | { |
3196 | int len = 0; | |
d6fdd1e9 | 3197 | int status = bluetooth_get_radiosw(); |
1da177e4 | 3198 | |
d8fd94d9 | 3199 | if (!tp_features.bluetooth) |
1da177e4 | 3200 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 3201 | else { |
d6fdd1e9 | 3202 | len += sprintf(p + len, "status:\t\t%s\n", |
0e74dc26 HMH |
3203 | (status == RFKILL_STATE_UNBLOCKED) ? |
3204 | "enabled" : "disabled"); | |
1da177e4 LT |
3205 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
3206 | } | |
3207 | ||
3208 | return len; | |
3209 | } | |
3210 | ||
78f81cc4 | 3211 | static int bluetooth_write(char *buf) |
1da177e4 | 3212 | { |
1da177e4 | 3213 | char *cmd; |
1da177e4 | 3214 | |
d8fd94d9 | 3215 | if (!tp_features.bluetooth) |
78f81cc4 | 3216 | return -ENODEV; |
1da177e4 LT |
3217 | |
3218 | while ((cmd = next_cmd(&buf))) { | |
3219 | if (strlencmp(cmd, "enable") == 0) { | |
0e74dc26 | 3220 | bluetooth_set_radiosw(1, 1); |
1da177e4 | 3221 | } else if (strlencmp(cmd, "disable") == 0) { |
0e74dc26 | 3222 | bluetooth_set_radiosw(0, 1); |
1da177e4 LT |
3223 | } else |
3224 | return -EINVAL; | |
1da177e4 LT |
3225 | } |
3226 | ||
1da177e4 LT |
3227 | return 0; |
3228 | } | |
3229 | ||
a5763f22 HMH |
3230 | static struct ibm_struct bluetooth_driver_data = { |
3231 | .name = "bluetooth", | |
3232 | .read = bluetooth_read, | |
3233 | .write = bluetooth_write, | |
d3a6ade4 | 3234 | .exit = bluetooth_exit, |
153f8220 | 3235 | .suspend = bluetooth_suspend, |
90d9d3c7 | 3236 | .shutdown = bluetooth_shutdown, |
a5763f22 HMH |
3237 | }; |
3238 | ||
56b6aeb0 HMH |
3239 | /************************************************************************* |
3240 | * Wan subdriver | |
3241 | */ | |
3242 | ||
f74a27d4 HMH |
3243 | enum { |
3244 | /* ACPI GWAN/SWAN bits */ | |
3245 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
3246 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 HMH |
3247 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
3248 | off / last state */ | |
f74a27d4 HMH |
3249 | }; |
3250 | ||
0e74dc26 HMH |
3251 | static struct rfkill *tpacpi_wan_rfkill; |
3252 | ||
153f8220 HMH |
3253 | static void wan_suspend(pm_message_t state) |
3254 | { | |
3255 | /* Try to make sure radio will resume powered off */ | |
3256 | acpi_evalf(NULL, NULL, "\\WGSV", "qvd", | |
3257 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME); | |
3258 | } | |
3259 | ||
07431ec8 HMH |
3260 | static int wan_get_radiosw(void) |
3261 | { | |
3262 | int status; | |
3263 | ||
3264 | if (!tp_features.wan) | |
3265 | return -ENODEV; | |
3266 | ||
133ec3bd HMH |
3267 | /* WLSW overrides WWAN in firmware/hardware, reflect that */ |
3268 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) | |
0e74dc26 | 3269 | return RFKILL_STATE_HARD_BLOCKED; |
133ec3bd | 3270 | |
a73f3091 HMH |
3271 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3272 | if (dbg_wwanemul) | |
3273 | return (tpacpi_wwan_emulstate) ? | |
3274 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
3275 | #endif | |
3276 | ||
07431ec8 HMH |
3277 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
3278 | return -EIO; | |
3279 | ||
0e74dc26 HMH |
3280 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
3281 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
07431ec8 HMH |
3282 | } |
3283 | ||
0e74dc26 HMH |
3284 | static void wan_update_rfk(void) |
3285 | { | |
3286 | int status; | |
3287 | ||
3288 | if (!tpacpi_wan_rfkill) | |
3289 | return; | |
3290 | ||
3291 | status = wan_get_radiosw(); | |
3292 | if (status < 0) | |
3293 | return; | |
3294 | rfkill_force_state(tpacpi_wan_rfkill, status); | |
3295 | } | |
3296 | ||
3297 | static int wan_set_radiosw(int radio_on, int update_rfk) | |
07431ec8 HMH |
3298 | { |
3299 | int status; | |
3300 | ||
3301 | if (!tp_features.wan) | |
3302 | return -ENODEV; | |
3303 | ||
133ec3bd HMH |
3304 | /* WLSW overrides bluetooth in firmware/hardware, but there is no |
3305 | * reason to risk weird behaviour. */ | |
3306 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status | |
3307 | && radio_on) | |
3308 | return -EPERM; | |
3309 | ||
a73f3091 HMH |
3310 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3311 | if (dbg_wwanemul) { | |
3312 | tpacpi_wwan_emulstate = !!radio_on; | |
3313 | if (update_rfk) | |
3314 | wan_update_rfk(); | |
3315 | return 0; | |
3316 | } | |
3317 | #endif | |
3318 | ||
153f8220 | 3319 | /* We make sure to keep TP_ACPI_WANCARD_RESUMECTRL off */ |
07431ec8 | 3320 | if (radio_on) |
153f8220 | 3321 | status = TP_ACPI_WANCARD_RADIOSSW; |
07431ec8 | 3322 | else |
153f8220 | 3323 | status = 0; |
07431ec8 HMH |
3324 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
3325 | return -EIO; | |
3326 | ||
0e74dc26 HMH |
3327 | if (update_rfk) |
3328 | wan_update_rfk(); | |
3329 | ||
07431ec8 HMH |
3330 | return 0; |
3331 | } | |
f74a27d4 | 3332 | |
d3a6ade4 HMH |
3333 | /* sysfs wan enable ---------------------------------------------------- */ |
3334 | static ssize_t wan_enable_show(struct device *dev, | |
3335 | struct device_attribute *attr, | |
3336 | char *buf) | |
3337 | { | |
3338 | int status; | |
3339 | ||
3340 | status = wan_get_radiosw(); | |
3341 | if (status < 0) | |
3342 | return status; | |
3343 | ||
0e74dc26 HMH |
3344 | return snprintf(buf, PAGE_SIZE, "%d\n", |
3345 | (status == RFKILL_STATE_UNBLOCKED) ? 1 : 0); | |
d3a6ade4 HMH |
3346 | } |
3347 | ||
3348 | static ssize_t wan_enable_store(struct device *dev, | |
3349 | struct device_attribute *attr, | |
3350 | const char *buf, size_t count) | |
3351 | { | |
3352 | unsigned long t; | |
3353 | int res; | |
3354 | ||
3355 | if (parse_strtoul(buf, 1, &t)) | |
3356 | return -EINVAL; | |
3357 | ||
0e74dc26 | 3358 | res = wan_set_radiosw(t, 1); |
d3a6ade4 HMH |
3359 | |
3360 | return (res) ? res : count; | |
3361 | } | |
3362 | ||
3363 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 3364 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
3365 | wan_enable_show, wan_enable_store); |
3366 | ||
3367 | /* --------------------------------------------------------------------- */ | |
3368 | ||
3369 | static struct attribute *wan_attributes[] = { | |
3370 | &dev_attr_wan_enable.attr, | |
3371 | NULL | |
3372 | }; | |
3373 | ||
3374 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
3375 | .attrs = wan_attributes, |
3376 | }; | |
3377 | ||
0e74dc26 HMH |
3378 | static int tpacpi_wan_rfk_get(void *data, enum rfkill_state *state) |
3379 | { | |
3380 | int wans = wan_get_radiosw(); | |
3381 | ||
3382 | if (wans < 0) | |
3383 | return wans; | |
3384 | ||
3385 | *state = wans; | |
3386 | return 0; | |
3387 | } | |
3388 | ||
3389 | static int tpacpi_wan_rfk_set(void *data, enum rfkill_state state) | |
3390 | { | |
3391 | return wan_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); | |
3392 | } | |
3393 | ||
90d9d3c7 HMH |
3394 | static void wan_shutdown(void) |
3395 | { | |
3396 | /* Order firmware to save current state to NVRAM */ | |
3397 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", | |
3398 | TP_ACPI_WGSV_SAVE_STATE)) | |
3399 | printk(TPACPI_NOTICE | |
3400 | "failed to save WWAN state to NVRAM\n"); | |
3401 | } | |
3402 | ||
07431ec8 HMH |
3403 | static void wan_exit(void) |
3404 | { | |
90d9d3c7 HMH |
3405 | wan_shutdown(); |
3406 | ||
0e74dc26 HMH |
3407 | if (tpacpi_wan_rfkill) |
3408 | rfkill_unregister(tpacpi_wan_rfkill); | |
3409 | ||
07431ec8 HMH |
3410 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
3411 | &wan_attr_group); | |
3412 | } | |
3413 | ||
a5763f22 | 3414 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 3415 | { |
d3a6ade4 | 3416 | int res; |
d6fdd1e9 HMH |
3417 | int status = 0; |
3418 | ||
fe08bc4b HMH |
3419 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
3420 | ||
e0c7dfe7 | 3421 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 3422 | |
d8fd94d9 | 3423 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
3424 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
3425 | ||
3426 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
3427 | str_supported(tp_features.wan), | |
3428 | status); | |
3429 | ||
a73f3091 HMH |
3430 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3431 | if (dbg_wwanemul) { | |
3432 | tp_features.wan = 1; | |
3433 | printk(TPACPI_INFO | |
3434 | "wwan switch emulation enabled\n"); | |
3435 | } else | |
3436 | #endif | |
3a872080 HMH |
3437 | if (tp_features.wan && |
3438 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
3439 | /* no wan hardware present in system */ | |
3440 | tp_features.wan = 0; | |
3441 | dbg_printk(TPACPI_DBG_INIT, | |
3442 | "wan hardware not installed\n"); | |
3443 | } | |
3444 | ||
0e74dc26 HMH |
3445 | if (!tp_features.wan) |
3446 | return 1; | |
3447 | ||
3448 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
3a872080 | 3449 | &wan_attr_group); |
0e74dc26 HMH |
3450 | if (res) |
3451 | return res; | |
3452 | ||
3453 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, | |
3454 | &tpacpi_wan_rfkill, | |
3455 | RFKILL_TYPE_WWAN, | |
3456 | "tpacpi_wwan_sw", | |
0045c0aa | 3457 | true, |
0e74dc26 HMH |
3458 | tpacpi_wan_rfk_set, |
3459 | tpacpi_wan_rfk_get); | |
3460 | if (res) { | |
3461 | wan_exit(); | |
3462 | return res; | |
d6fdd1e9 | 3463 | } |
fe08bc4b | 3464 | |
0e74dc26 | 3465 | return 0; |
42adb53c JF |
3466 | } |
3467 | ||
d3a6ade4 | 3468 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
3469 | static int wan_read(char *p) |
3470 | { | |
3471 | int len = 0; | |
d6fdd1e9 | 3472 | int status = wan_get_radiosw(); |
42adb53c | 3473 | |
d8fd94d9 | 3474 | if (!tp_features.wan) |
42adb53c | 3475 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 3476 | else { |
d6fdd1e9 | 3477 | len += sprintf(p + len, "status:\t\t%s\n", |
0e74dc26 HMH |
3478 | (status == RFKILL_STATE_UNBLOCKED) ? |
3479 | "enabled" : "disabled"); | |
42adb53c JF |
3480 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
3481 | } | |
3482 | ||
3483 | return len; | |
3484 | } | |
3485 | ||
3486 | static int wan_write(char *buf) | |
3487 | { | |
42adb53c | 3488 | char *cmd; |
42adb53c | 3489 | |
d8fd94d9 | 3490 | if (!tp_features.wan) |
42adb53c JF |
3491 | return -ENODEV; |
3492 | ||
3493 | while ((cmd = next_cmd(&buf))) { | |
3494 | if (strlencmp(cmd, "enable") == 0) { | |
0e74dc26 | 3495 | wan_set_radiosw(1, 1); |
42adb53c | 3496 | } else if (strlencmp(cmd, "disable") == 0) { |
0e74dc26 | 3497 | wan_set_radiosw(0, 1); |
42adb53c JF |
3498 | } else |
3499 | return -EINVAL; | |
42adb53c JF |
3500 | } |
3501 | ||
42adb53c JF |
3502 | return 0; |
3503 | } | |
3504 | ||
a5763f22 HMH |
3505 | static struct ibm_struct wan_driver_data = { |
3506 | .name = "wan", | |
3507 | .read = wan_read, | |
3508 | .write = wan_write, | |
d3a6ade4 | 3509 | .exit = wan_exit, |
153f8220 | 3510 | .suspend = wan_suspend, |
90d9d3c7 | 3511 | .shutdown = wan_shutdown, |
a5763f22 HMH |
3512 | }; |
3513 | ||
0045c0aa HMH |
3514 | /************************************************************************* |
3515 | * UWB subdriver | |
3516 | */ | |
3517 | ||
3518 | enum { | |
3519 | /* ACPI GUWB/SUWB bits */ | |
3520 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ | |
3521 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ | |
3522 | }; | |
3523 | ||
3524 | static struct rfkill *tpacpi_uwb_rfkill; | |
3525 | ||
3526 | static int uwb_get_radiosw(void) | |
3527 | { | |
3528 | int status; | |
3529 | ||
3530 | if (!tp_features.uwb) | |
3531 | return -ENODEV; | |
3532 | ||
3533 | /* WLSW overrides UWB in firmware/hardware, reflect that */ | |
3534 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) | |
3535 | return RFKILL_STATE_HARD_BLOCKED; | |
3536 | ||
3537 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
3538 | if (dbg_uwbemul) | |
3539 | return (tpacpi_uwb_emulstate) ? | |
3540 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
3541 | #endif | |
3542 | ||
3543 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) | |
3544 | return -EIO; | |
3545 | ||
3546 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? | |
3547 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; | |
3548 | } | |
3549 | ||
3550 | static void uwb_update_rfk(void) | |
3551 | { | |
3552 | int status; | |
3553 | ||
3554 | if (!tpacpi_uwb_rfkill) | |
3555 | return; | |
3556 | ||
3557 | status = uwb_get_radiosw(); | |
3558 | if (status < 0) | |
3559 | return; | |
3560 | rfkill_force_state(tpacpi_uwb_rfkill, status); | |
3561 | } | |
3562 | ||
3563 | static int uwb_set_radiosw(int radio_on, int update_rfk) | |
3564 | { | |
3565 | int status; | |
3566 | ||
3567 | if (!tp_features.uwb) | |
3568 | return -ENODEV; | |
3569 | ||
3570 | /* WLSW overrides UWB in firmware/hardware, but there is no | |
3571 | * reason to risk weird behaviour. */ | |
3572 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status | |
3573 | && radio_on) | |
3574 | return -EPERM; | |
3575 | ||
3576 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
3577 | if (dbg_uwbemul) { | |
3578 | tpacpi_uwb_emulstate = !!radio_on; | |
3579 | if (update_rfk) | |
3580 | uwb_update_rfk(); | |
3581 | return 0; | |
3582 | } | |
3583 | #endif | |
3584 | ||
3585 | status = (radio_on) ? TP_ACPI_UWB_RADIOSSW : 0; | |
3586 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) | |
3587 | return -EIO; | |
3588 | ||
3589 | if (update_rfk) | |
3590 | uwb_update_rfk(); | |
3591 | ||
3592 | return 0; | |
3593 | } | |
3594 | ||
3595 | /* --------------------------------------------------------------------- */ | |
3596 | ||
3597 | static int tpacpi_uwb_rfk_get(void *data, enum rfkill_state *state) | |
3598 | { | |
3599 | int uwbs = uwb_get_radiosw(); | |
3600 | ||
3601 | if (uwbs < 0) | |
3602 | return uwbs; | |
3603 | ||
3604 | *state = uwbs; | |
3605 | return 0; | |
3606 | } | |
3607 | ||
3608 | static int tpacpi_uwb_rfk_set(void *data, enum rfkill_state state) | |
3609 | { | |
3610 | return uwb_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); | |
3611 | } | |
3612 | ||
3613 | static void uwb_exit(void) | |
3614 | { | |
3615 | if (tpacpi_uwb_rfkill) | |
3616 | rfkill_unregister(tpacpi_uwb_rfkill); | |
3617 | } | |
3618 | ||
3619 | static int __init uwb_init(struct ibm_init_struct *iibm) | |
3620 | { | |
3621 | int res; | |
3622 | int status = 0; | |
3623 | ||
3624 | vdbg_printk(TPACPI_DBG_INIT, "initializing uwb subdriver\n"); | |
3625 | ||
3626 | TPACPI_ACPIHANDLE_INIT(hkey); | |
3627 | ||
3628 | tp_features.uwb = hkey_handle && | |
3629 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); | |
3630 | ||
3631 | vdbg_printk(TPACPI_DBG_INIT, "uwb is %s, status 0x%02x\n", | |
3632 | str_supported(tp_features.uwb), | |
3633 | status); | |
3634 | ||
3635 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
3636 | if (dbg_uwbemul) { | |
3637 | tp_features.uwb = 1; | |
3638 | printk(TPACPI_INFO | |
3639 | "uwb switch emulation enabled\n"); | |
3640 | } else | |
3641 | #endif | |
3642 | if (tp_features.uwb && | |
3643 | !(status & TP_ACPI_UWB_HWPRESENT)) { | |
3644 | /* no uwb hardware present in system */ | |
3645 | tp_features.uwb = 0; | |
3646 | dbg_printk(TPACPI_DBG_INIT, | |
3647 | "uwb hardware not installed\n"); | |
3648 | } | |
3649 | ||
3650 | if (!tp_features.uwb) | |
3651 | return 1; | |
3652 | ||
3653 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, | |
3654 | &tpacpi_uwb_rfkill, | |
3655 | RFKILL_TYPE_UWB, | |
3656 | "tpacpi_uwb_sw", | |
3657 | false, | |
3658 | tpacpi_uwb_rfk_set, | |
3659 | tpacpi_uwb_rfk_get); | |
3660 | ||
3661 | return res; | |
3662 | } | |
3663 | ||
3664 | static struct ibm_struct uwb_driver_data = { | |
3665 | .name = "uwb", | |
3666 | .exit = uwb_exit, | |
3667 | .flags.experimental = 1, | |
3668 | }; | |
3669 | ||
56b6aeb0 HMH |
3670 | /************************************************************************* |
3671 | * Video subdriver | |
3672 | */ | |
3673 | ||
d7c1d17d HMH |
3674 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
3675 | ||
f74a27d4 HMH |
3676 | enum video_access_mode { |
3677 | TPACPI_VIDEO_NONE = 0, | |
3678 | TPACPI_VIDEO_570, /* 570 */ | |
3679 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
3680 | TPACPI_VIDEO_NEW, /* all others */ | |
3681 | }; | |
3682 | ||
3683 | enum { /* video status flags, based on VIDEO_570 */ | |
3684 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
3685 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
3686 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
3687 | }; | |
3688 | ||
3689 | enum { /* TPACPI_VIDEO_570 constants */ | |
3690 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
3691 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
3692 | * video_status_flags */ | |
3693 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
3694 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
3695 | }; | |
3696 | ||
9a8e1738 HMH |
3697 | static enum video_access_mode video_supported; |
3698 | static int video_orig_autosw; | |
78f81cc4 | 3699 | |
f74a27d4 HMH |
3700 | static int video_autosw_get(void); |
3701 | static int video_autosw_set(int enable); | |
3702 | ||
e0c7dfe7 | 3703 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 3704 | |
a5763f22 | 3705 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 3706 | { |
78f81cc4 BD |
3707 | int ivga; |
3708 | ||
fe08bc4b HMH |
3709 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
3710 | ||
e0c7dfe7 HMH |
3711 | TPACPI_ACPIHANDLE_INIT(vid); |
3712 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 3713 | |
78f81cc4 BD |
3714 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
3715 | /* G41, assume IVGA doesn't change */ | |
3716 | vid_handle = vid2_handle; | |
3717 | ||
3718 | if (!vid_handle) | |
3719 | /* video switching not supported on R30, R31 */ | |
efa27145 | 3720 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
3721 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
3722 | /* 570 */ | |
efa27145 | 3723 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
3724 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
3725 | /* 600e/x, 770e, 770x */ | |
efa27145 | 3726 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
3727 | else |
3728 | /* all others */ | |
efa27145 | 3729 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 3730 | |
fe08bc4b HMH |
3731 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
3732 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
3733 | video_supported); | |
3734 | ||
5fba344c | 3735 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
3736 | } |
3737 | ||
56b6aeb0 HMH |
3738 | static void video_exit(void) |
3739 | { | |
83f34724 HMH |
3740 | dbg_printk(TPACPI_DBG_EXIT, |
3741 | "restoring original video autoswitch mode\n"); | |
3742 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 3743 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 3744 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
3745 | } |
3746 | ||
83f34724 | 3747 | static int video_outputsw_get(void) |
1da177e4 LT |
3748 | { |
3749 | int status = 0; | |
3750 | int i; | |
3751 | ||
83f34724 HMH |
3752 | switch (video_supported) { |
3753 | case TPACPI_VIDEO_570: | |
3754 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
3755 | TP_ACPI_VIDEO_570_PHSCMD)) | |
3756 | return -EIO; | |
3757 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
3758 | break; | |
3759 | case TPACPI_VIDEO_770: | |
3760 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
3761 | return -EIO; | |
3762 | if (i) | |
3763 | status |= TP_ACPI_VIDEO_S_LCD; | |
3764 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
3765 | return -EIO; | |
3766 | if (i) | |
3767 | status |= TP_ACPI_VIDEO_S_CRT; | |
3768 | break; | |
3769 | case TPACPI_VIDEO_NEW: | |
3770 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
3771 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
3772 | return -EIO; | |
3773 | if (i) | |
3774 | status |= TP_ACPI_VIDEO_S_CRT; | |
3775 | ||
3776 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
3777 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
3778 | return -EIO; | |
3779 | if (i) | |
3780 | status |= TP_ACPI_VIDEO_S_LCD; | |
3781 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
3782 | return -EIO; | |
3783 | if (i) | |
3784 | status |= TP_ACPI_VIDEO_S_DVI; | |
3785 | break; | |
3786 | default: | |
3787 | return -ENOSYS; | |
78f81cc4 BD |
3788 | } |
3789 | ||
3790 | return status; | |
3791 | } | |
1da177e4 | 3792 | |
83f34724 | 3793 | static int video_outputsw_set(int status) |
78f81cc4 | 3794 | { |
83f34724 HMH |
3795 | int autosw; |
3796 | int res = 0; | |
3797 | ||
3798 | switch (video_supported) { | |
3799 | case TPACPI_VIDEO_570: | |
3800 | res = acpi_evalf(NULL, NULL, | |
3801 | "\\_SB.PHS2", "vdd", | |
3802 | TP_ACPI_VIDEO_570_PHS2CMD, | |
3803 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
3804 | break; | |
3805 | case TPACPI_VIDEO_770: | |
3806 | autosw = video_autosw_get(); | |
3807 | if (autosw < 0) | |
3808 | return autosw; | |
1da177e4 | 3809 | |
83f34724 HMH |
3810 | res = video_autosw_set(1); |
3811 | if (res) | |
3812 | return res; | |
3813 | res = acpi_evalf(vid_handle, NULL, | |
3814 | "ASWT", "vdd", status * 0x100, 0); | |
3815 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3816 | printk(TPACPI_ERR |
3817 | "video auto-switch left enabled due to error\n"); | |
83f34724 HMH |
3818 | return -EIO; |
3819 | } | |
3820 | break; | |
3821 | case TPACPI_VIDEO_NEW: | |
3822 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 3823 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
3824 | break; |
3825 | default: | |
3826 | return -ENOSYS; | |
3827 | } | |
1da177e4 | 3828 | |
83f34724 | 3829 | return (res)? 0 : -EIO; |
1da177e4 LT |
3830 | } |
3831 | ||
83f34724 | 3832 | static int video_autosw_get(void) |
78f81cc4 | 3833 | { |
83f34724 | 3834 | int autosw = 0; |
78f81cc4 | 3835 | |
83f34724 HMH |
3836 | switch (video_supported) { |
3837 | case TPACPI_VIDEO_570: | |
3838 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
3839 | return -EIO; | |
3840 | break; | |
3841 | case TPACPI_VIDEO_770: | |
3842 | case TPACPI_VIDEO_NEW: | |
3843 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
3844 | return -EIO; | |
3845 | break; | |
3846 | default: | |
3847 | return -ENOSYS; | |
3848 | } | |
78f81cc4 | 3849 | |
83f34724 | 3850 | return autosw & 1; |
78f81cc4 BD |
3851 | } |
3852 | ||
83f34724 | 3853 | static int video_autosw_set(int enable) |
78f81cc4 | 3854 | { |
83f34724 HMH |
3855 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
3856 | return -EIO; | |
3857 | return 0; | |
78f81cc4 BD |
3858 | } |
3859 | ||
83f34724 | 3860 | static int video_outputsw_cycle(void) |
78f81cc4 | 3861 | { |
83f34724 HMH |
3862 | int autosw = video_autosw_get(); |
3863 | int res; | |
78f81cc4 | 3864 | |
83f34724 HMH |
3865 | if (autosw < 0) |
3866 | return autosw; | |
78f81cc4 | 3867 | |
83f34724 HMH |
3868 | switch (video_supported) { |
3869 | case TPACPI_VIDEO_570: | |
3870 | res = video_autosw_set(1); | |
3871 | if (res) | |
3872 | return res; | |
3873 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
3874 | break; | |
3875 | case TPACPI_VIDEO_770: | |
3876 | case TPACPI_VIDEO_NEW: | |
3877 | res = video_autosw_set(1); | |
3878 | if (res) | |
3879 | return res; | |
3880 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
3881 | break; | |
3882 | default: | |
3883 | return -ENOSYS; | |
3884 | } | |
3885 | if (!autosw && video_autosw_set(autosw)) { | |
35ff8b9f HMH |
3886 | printk(TPACPI_ERR |
3887 | "video auto-switch left enabled due to error\n"); | |
83f34724 | 3888 | return -EIO; |
78f81cc4 BD |
3889 | } |
3890 | ||
83f34724 HMH |
3891 | return (res)? 0 : -EIO; |
3892 | } | |
3893 | ||
3894 | static int video_expand_toggle(void) | |
3895 | { | |
3896 | switch (video_supported) { | |
3897 | case TPACPI_VIDEO_570: | |
3898 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
3899 | 0 : -EIO; | |
3900 | case TPACPI_VIDEO_770: | |
3901 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
3902 | 0 : -EIO; | |
3903 | case TPACPI_VIDEO_NEW: | |
3904 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
3905 | 0 : -EIO; | |
3906 | default: | |
3907 | return -ENOSYS; | |
3908 | } | |
3909 | /* not reached */ | |
78f81cc4 BD |
3910 | } |
3911 | ||
56b6aeb0 HMH |
3912 | static int video_read(char *p) |
3913 | { | |
83f34724 | 3914 | int status, autosw; |
56b6aeb0 HMH |
3915 | int len = 0; |
3916 | ||
83f34724 | 3917 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
3918 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
3919 | return len; | |
3920 | } | |
3921 | ||
83f34724 HMH |
3922 | status = video_outputsw_get(); |
3923 | if (status < 0) | |
3924 | return status; | |
3925 | ||
3926 | autosw = video_autosw_get(); | |
3927 | if (autosw < 0) | |
3928 | return autosw; | |
3929 | ||
56b6aeb0 HMH |
3930 | len += sprintf(p + len, "status:\t\tsupported\n"); |
3931 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
3932 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 3933 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3934 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
3935 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
3936 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
3937 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 3938 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
3939 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
3940 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
3941 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
3942 | ||
3943 | return len; | |
3944 | } | |
3945 | ||
78f81cc4 | 3946 | static int video_write(char *buf) |
1da177e4 LT |
3947 | { |
3948 | char *cmd; | |
3949 | int enable, disable, status; | |
83f34724 | 3950 | int res; |
1da177e4 | 3951 | |
83f34724 | 3952 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
3953 | return -ENODEV; |
3954 | ||
83f34724 HMH |
3955 | enable = 0; |
3956 | disable = 0; | |
1da177e4 LT |
3957 | |
3958 | while ((cmd = next_cmd(&buf))) { | |
3959 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 3960 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3961 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 3962 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 3963 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 3964 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 3965 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 3966 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 3967 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3968 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 3969 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 3970 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 3971 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 3972 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 3973 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
3974 | res = video_autosw_set(1); |
3975 | if (res) | |
3976 | return res; | |
1da177e4 | 3977 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
3978 | res = video_autosw_set(0); |
3979 | if (res) | |
3980 | return res; | |
1da177e4 | 3981 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
3982 | res = video_outputsw_cycle(); |
3983 | if (res) | |
3984 | return res; | |
1da177e4 | 3985 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
3986 | res = video_expand_toggle(); |
3987 | if (res) | |
3988 | return res; | |
1da177e4 LT |
3989 | } else |
3990 | return -EINVAL; | |
3991 | } | |
3992 | ||
3993 | if (enable || disable) { | |
83f34724 HMH |
3994 | status = video_outputsw_get(); |
3995 | if (status < 0) | |
3996 | return status; | |
3997 | res = video_outputsw_set((status & ~disable) | enable); | |
3998 | if (res) | |
3999 | return res; | |
1da177e4 LT |
4000 | } |
4001 | ||
4002 | return 0; | |
4003 | } | |
4004 | ||
a5763f22 HMH |
4005 | static struct ibm_struct video_driver_data = { |
4006 | .name = "video", | |
4007 | .read = video_read, | |
4008 | .write = video_write, | |
4009 | .exit = video_exit, | |
4010 | }; | |
4011 | ||
d7c1d17d HMH |
4012 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
4013 | ||
56b6aeb0 HMH |
4014 | /************************************************************************* |
4015 | * Light (thinklight) subdriver | |
4016 | */ | |
1da177e4 | 4017 | |
e0c7dfe7 HMH |
4018 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
4019 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 4020 | |
4fa6811b HMH |
4021 | static int light_get_status(void) |
4022 | { | |
4023 | int status = 0; | |
4024 | ||
4025 | if (tp_features.light_status) { | |
4026 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
4027 | return -EIO; | |
4028 | return (!!status); | |
4029 | } | |
4030 | ||
4031 | return -ENXIO; | |
4032 | } | |
4033 | ||
4034 | static int light_set_status(int status) | |
4035 | { | |
4036 | int rc; | |
4037 | ||
4038 | if (tp_features.light) { | |
4039 | if (cmos_handle) { | |
4040 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
4041 | (status)? | |
4042 | TP_CMOS_THINKLIGHT_ON : | |
4043 | TP_CMOS_THINKLIGHT_OFF); | |
4044 | } else { | |
4045 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
4046 | (status)? 1 : 0); | |
4047 | } | |
4048 | return (rc)? 0 : -EIO; | |
4049 | } | |
4050 | ||
4051 | return -ENXIO; | |
4052 | } | |
4053 | ||
e306501d HMH |
4054 | static void light_set_status_worker(struct work_struct *work) |
4055 | { | |
4056 | struct tpacpi_led_classdev *data = | |
4057 | container_of(work, struct tpacpi_led_classdev, work); | |
4058 | ||
4059 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
4060 | light_set_status((data->new_brightness != LED_OFF)); | |
4061 | } | |
4062 | ||
4063 | static void light_sysfs_set(struct led_classdev *led_cdev, | |
4064 | enum led_brightness brightness) | |
4065 | { | |
4066 | struct tpacpi_led_classdev *data = | |
4067 | container_of(led_cdev, | |
4068 | struct tpacpi_led_classdev, | |
4069 | led_classdev); | |
4070 | data->new_brightness = brightness; | |
e0e3c061 | 4071 | queue_work(tpacpi_wq, &data->work); |
e306501d HMH |
4072 | } |
4073 | ||
4074 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
4075 | { | |
4076 | return (light_get_status() == 1)? LED_FULL : LED_OFF; | |
4077 | } | |
4078 | ||
4079 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
4080 | .led_classdev = { | |
4081 | .name = "tpacpi::thinklight", | |
4082 | .brightness_set = &light_sysfs_set, | |
4083 | .brightness_get = &light_sysfs_get, | |
4084 | } | |
4085 | }; | |
4086 | ||
a5763f22 | 4087 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 4088 | { |
9c0a76e1 | 4089 | int rc; |
e306501d | 4090 | |
fe08bc4b HMH |
4091 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
4092 | ||
e0c7dfe7 HMH |
4093 | TPACPI_ACPIHANDLE_INIT(ledb); |
4094 | TPACPI_ACPIHANDLE_INIT(lght); | |
4095 | TPACPI_ACPIHANDLE_INIT(cmos); | |
e306501d | 4096 | INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker); |
5fba344c | 4097 | |
78f81cc4 | 4098 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 4099 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 4100 | |
d8fd94d9 | 4101 | if (tp_features.light) |
78f81cc4 BD |
4102 | /* light status not supported on |
4103 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
4104 | tp_features.light_status = |
4105 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 4106 | |
9c0a76e1 HMH |
4107 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
4108 | str_supported(tp_features.light), | |
4109 | str_supported(tp_features.light_status)); | |
fe08bc4b | 4110 | |
9c0a76e1 HMH |
4111 | if (!tp_features.light) |
4112 | return 1; | |
4113 | ||
4114 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
4115 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
4116 | |
4117 | if (rc < 0) { | |
4118 | tp_features.light = 0; | |
4119 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
4120 | } else { |
4121 | rc = 0; | |
e306501d | 4122 | } |
9c0a76e1 | 4123 | |
e306501d HMH |
4124 | return rc; |
4125 | } | |
4126 | ||
4127 | static void light_exit(void) | |
4128 | { | |
4129 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
4130 | if (work_pending(&tpacpi_led_thinklight.work)) | |
e0e3c061 | 4131 | flush_workqueue(tpacpi_wq); |
1da177e4 LT |
4132 | } |
4133 | ||
78f81cc4 | 4134 | static int light_read(char *p) |
1da177e4 LT |
4135 | { |
4136 | int len = 0; | |
4fa6811b | 4137 | int status; |
1da177e4 | 4138 | |
d8fd94d9 | 4139 | if (!tp_features.light) { |
78f81cc4 | 4140 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 4141 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
4142 | len += sprintf(p + len, "status:\t\tunknown\n"); |
4143 | len += sprintf(p + len, "commands:\ton, off\n"); | |
4144 | } else { | |
4fa6811b HMH |
4145 | status = light_get_status(); |
4146 | if (status < 0) | |
4147 | return status; | |
1da177e4 | 4148 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); |
78f81cc4 BD |
4149 | len += sprintf(p + len, "commands:\ton, off\n"); |
4150 | } | |
1da177e4 LT |
4151 | |
4152 | return len; | |
4153 | } | |
4154 | ||
78f81cc4 | 4155 | static int light_write(char *buf) |
1da177e4 | 4156 | { |
1da177e4 | 4157 | char *cmd; |
4fa6811b | 4158 | int newstatus = 0; |
78f81cc4 | 4159 | |
d8fd94d9 | 4160 | if (!tp_features.light) |
78f81cc4 BD |
4161 | return -ENODEV; |
4162 | ||
1da177e4 LT |
4163 | while ((cmd = next_cmd(&buf))) { |
4164 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 4165 | newstatus = 1; |
1da177e4 | 4166 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 4167 | newstatus = 0; |
1da177e4 LT |
4168 | } else |
4169 | return -EINVAL; | |
1da177e4 LT |
4170 | } |
4171 | ||
4fa6811b | 4172 | return light_set_status(newstatus); |
1da177e4 LT |
4173 | } |
4174 | ||
a5763f22 HMH |
4175 | static struct ibm_struct light_driver_data = { |
4176 | .name = "light", | |
4177 | .read = light_read, | |
4178 | .write = light_write, | |
e306501d | 4179 | .exit = light_exit, |
a5763f22 HMH |
4180 | }; |
4181 | ||
56b6aeb0 HMH |
4182 | /************************************************************************* |
4183 | * Dock subdriver | |
4184 | */ | |
1da177e4 | 4185 | |
85998248 | 4186 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 | 4187 | |
f74a27d4 HMH |
4188 | static void dock_notify(struct ibm_struct *ibm, u32 event); |
4189 | static int dock_read(char *p); | |
4190 | static int dock_write(char *buf); | |
4191 | ||
e0c7dfe7 | 4192 | TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
56b6aeb0 HMH |
4193 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ |
4194 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
4195 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
4196 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
4197 | ||
5fba344c | 4198 | /* don't list other alternatives as we install a notify handler on the 570 */ |
e0c7dfe7 | 4199 | TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ |
5fba344c | 4200 | |
1ba90e3a TR |
4201 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
4202 | {PCI_ROOT_HID_STRING, 0}, | |
4203 | {"", 0}, | |
4204 | }; | |
4205 | ||
d94a7f16 HMH |
4206 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
4207 | { | |
4208 | .notify = dock_notify, | |
4209 | .handle = &dock_handle, | |
4210 | .type = ACPI_SYSTEM_NOTIFY, | |
4211 | }, | |
4212 | { | |
996fba08 HMH |
4213 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
4214 | * We just use it to get notifications of dock hotplug | |
4215 | * in very old thinkpads */ | |
1ba90e3a | 4216 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
4217 | .notify = dock_notify, |
4218 | .handle = &pci_handle, | |
4219 | .type = ACPI_SYSTEM_NOTIFY, | |
4220 | }, | |
4221 | }; | |
4222 | ||
4223 | static struct ibm_struct dock_driver_data[2] = { | |
4224 | { | |
4225 | .name = "dock", | |
4226 | .read = dock_read, | |
4227 | .write = dock_write, | |
4228 | .acpi = &ibm_dock_acpidriver[0], | |
4229 | }, | |
4230 | { | |
4231 | .name = "dock", | |
4232 | .acpi = &ibm_dock_acpidriver[1], | |
4233 | }, | |
4234 | }; | |
4235 | ||
1da177e4 LT |
4236 | #define dock_docked() (_sta(dock_handle) & 1) |
4237 | ||
a5763f22 | 4238 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 4239 | { |
fe08bc4b HMH |
4240 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
4241 | ||
e0c7dfe7 | 4242 | TPACPI_ACPIHANDLE_INIT(dock); |
5fba344c | 4243 | |
fe08bc4b HMH |
4244 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
4245 | str_supported(dock_handle != NULL)); | |
4246 | ||
5fba344c HMH |
4247 | return (dock_handle)? 0 : 1; |
4248 | } | |
4249 | ||
d94a7f16 HMH |
4250 | static int __init dock_init2(struct ibm_init_struct *iibm) |
4251 | { | |
4252 | int dock2_needed; | |
4253 | ||
4254 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
4255 | ||
4256 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
4257 | dock_driver_data[0].flags.acpi_notify_installed) { | |
e0c7dfe7 | 4258 | TPACPI_ACPIHANDLE_INIT(pci); |
d94a7f16 HMH |
4259 | dock2_needed = (pci_handle != NULL); |
4260 | vdbg_printk(TPACPI_DBG_INIT, | |
4261 | "dock PCI handler for the TP 570 is %s\n", | |
4262 | str_supported(dock2_needed)); | |
4263 | } else { | |
4264 | vdbg_printk(TPACPI_DBG_INIT, | |
4265 | "dock subdriver part 2 not required\n"); | |
4266 | dock2_needed = 0; | |
4267 | } | |
4268 | ||
4269 | return (dock2_needed)? 0 : 1; | |
4270 | } | |
4271 | ||
56b6aeb0 HMH |
4272 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
4273 | { | |
4274 | int docked = dock_docked(); | |
1ba90e3a TR |
4275 | int pci = ibm->acpi->hid && ibm->acpi->device && |
4276 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 4277 | int data; |
56b6aeb0 HMH |
4278 | |
4279 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 4280 | data = 1; /* button */ |
56b6aeb0 | 4281 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 4282 | data = 3; /* dock */ |
56b6aeb0 | 4283 | else if (event == 3 && docked) |
962ce8ca | 4284 | data = 1; /* button */ |
56b6aeb0 | 4285 | else if (event == 3 && !docked) |
962ce8ca | 4286 | data = 2; /* undock */ |
56b6aeb0 | 4287 | else if (event == 0 && docked) |
962ce8ca | 4288 | data = 3; /* dock */ |
56b6aeb0 | 4289 | else { |
e0c7dfe7 | 4290 | printk(TPACPI_ERR "unknown dock event %d, status %d\n", |
56b6aeb0 | 4291 | event, _sta(dock_handle)); |
962ce8ca | 4292 | data = 0; /* unknown */ |
56b6aeb0 | 4293 | } |
14e04fb3 | 4294 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca | 4295 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
e0b36fc5 | 4296 | dev_name(&ibm->acpi->device->dev), |
962ce8ca | 4297 | event, data); |
56b6aeb0 HMH |
4298 | } |
4299 | ||
78f81cc4 | 4300 | static int dock_read(char *p) |
1da177e4 LT |
4301 | { |
4302 | int len = 0; | |
4303 | int docked = dock_docked(); | |
4304 | ||
4305 | if (!dock_handle) | |
4306 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4307 | else if (!docked) | |
4308 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
4309 | else { | |
4310 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
4311 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
4312 | } | |
4313 | ||
4314 | return len; | |
4315 | } | |
4316 | ||
78f81cc4 | 4317 | static int dock_write(char *buf) |
1da177e4 LT |
4318 | { |
4319 | char *cmd; | |
4320 | ||
4321 | if (!dock_docked()) | |
78f81cc4 | 4322 | return -ENODEV; |
1da177e4 LT |
4323 | |
4324 | while ((cmd = next_cmd(&buf))) { | |
4325 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
4326 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
4327 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
4328 | return -EIO; |
4329 | } else if (strlencmp(cmd, "dock") == 0) { | |
4330 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
4331 | return -EIO; | |
4332 | } else | |
4333 | return -EINVAL; | |
1da177e4 | 4334 | } |
56b6aeb0 HMH |
4335 | |
4336 | return 0; | |
1da177e4 | 4337 | } |
56b6aeb0 | 4338 | |
85998248 | 4339 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
4340 | |
4341 | /************************************************************************* | |
4342 | * Bay subdriver | |
4343 | */ | |
1da177e4 | 4344 | |
85998248 | 4345 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
f74a27d4 | 4346 | |
e0c7dfe7 | 4347 | TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
56b6aeb0 HMH |
4348 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ |
4349 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
4350 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
4351 | ); /* A21e, R30, R31 */ | |
e0c7dfe7 | 4352 | TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ |
56b6aeb0 HMH |
4353 | "_EJ0", /* all others */ |
4354 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
e0c7dfe7 | 4355 | TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ |
56b6aeb0 HMH |
4356 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ |
4357 | ); /* all others */ | |
e0c7dfe7 | 4358 | TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ |
56b6aeb0 HMH |
4359 | "_EJ0", /* 770x */ |
4360 | ); /* all others */ | |
4361 | ||
a5763f22 | 4362 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 4363 | { |
fe08bc4b HMH |
4364 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
4365 | ||
e0c7dfe7 | 4366 | TPACPI_ACPIHANDLE_INIT(bay); |
5fba344c | 4367 | if (bay_handle) |
e0c7dfe7 HMH |
4368 | TPACPI_ACPIHANDLE_INIT(bay_ej); |
4369 | TPACPI_ACPIHANDLE_INIT(bay2); | |
5fba344c | 4370 | if (bay2_handle) |
e0c7dfe7 | 4371 | TPACPI_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 4372 | |
d8fd94d9 HMH |
4373 | tp_features.bay_status = bay_handle && |
4374 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
4375 | tp_features.bay_status2 = bay2_handle && | |
4376 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 4377 | |
d8fd94d9 HMH |
4378 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
4379 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
4380 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
4381 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 4382 | |
fe08bc4b HMH |
4383 | vdbg_printk(TPACPI_DBG_INIT, |
4384 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
4385 | str_supported(tp_features.bay_status), |
4386 | str_supported(tp_features.bay_eject), | |
4387 | str_supported(tp_features.bay_status2), | |
4388 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 4389 | |
d8fd94d9 HMH |
4390 | return (tp_features.bay_status || tp_features.bay_eject || |
4391 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
4392 | } |
4393 | ||
56b6aeb0 HMH |
4394 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
4395 | { | |
14e04fb3 | 4396 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca | 4397 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
e0b36fc5 | 4398 | dev_name(&ibm->acpi->device->dev), |
962ce8ca | 4399 | event, 0); |
56b6aeb0 HMH |
4400 | } |
4401 | ||
78f81cc4 BD |
4402 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
4403 | ||
4404 | static int bay_read(char *p) | |
1da177e4 LT |
4405 | { |
4406 | int len = 0; | |
78f81cc4 BD |
4407 | int occupied = bay_occupied(bay); |
4408 | int occupied2 = bay_occupied(bay2); | |
4409 | int eject, eject2; | |
4410 | ||
d8fd94d9 HMH |
4411 | len += sprintf(p + len, "status:\t\t%s\n", |
4412 | tp_features.bay_status ? | |
4413 | (occupied ? "occupied" : "unoccupied") : | |
4414 | "not supported"); | |
4415 | if (tp_features.bay_status2) | |
78f81cc4 BD |
4416 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
4417 | "occupied" : "unoccupied"); | |
4418 | ||
d8fd94d9 HMH |
4419 | eject = tp_features.bay_eject && occupied; |
4420 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
4421 | |
4422 | if (eject && eject2) | |
4423 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
4424 | else if (eject) | |
1da177e4 | 4425 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
4426 | else if (eject2) |
4427 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
4428 | |
4429 | return len; | |
4430 | } | |
4431 | ||
78f81cc4 | 4432 | static int bay_write(char *buf) |
1da177e4 LT |
4433 | { |
4434 | char *cmd; | |
4435 | ||
d8fd94d9 | 4436 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
4437 | return -ENODEV; |
4438 | ||
1da177e4 | 4439 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 4440 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
4441 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
4442 | return -EIO; | |
d8fd94d9 | 4443 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
4444 | strlencmp(cmd, "eject2") == 0) { |
4445 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
4446 | return -EIO; |
4447 | } else | |
4448 | return -EINVAL; | |
4449 | } | |
4450 | ||
4451 | return 0; | |
78f81cc4 | 4452 | } |
a5763f22 | 4453 | |
8d376cd6 HMH |
4454 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
4455 | .notify = bay_notify, | |
4456 | .handle = &bay_handle, | |
4457 | .type = ACPI_SYSTEM_NOTIFY, | |
4458 | }; | |
4459 | ||
a5763f22 HMH |
4460 | static struct ibm_struct bay_driver_data = { |
4461 | .name = "bay", | |
4462 | .read = bay_read, | |
4463 | .write = bay_write, | |
8d376cd6 | 4464 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
4465 | }; |
4466 | ||
85998248 | 4467 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 4468 | |
56b6aeb0 HMH |
4469 | /************************************************************************* |
4470 | * CMOS subdriver | |
4471 | */ | |
4472 | ||
b616004c HMH |
4473 | /* sysfs cmos_command -------------------------------------------------- */ |
4474 | static ssize_t cmos_command_store(struct device *dev, | |
4475 | struct device_attribute *attr, | |
4476 | const char *buf, size_t count) | |
4477 | { | |
4478 | unsigned long cmos_cmd; | |
4479 | int res; | |
4480 | ||
4481 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
4482 | return -EINVAL; | |
4483 | ||
4484 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
4485 | return (res)? res : count; | |
4486 | } | |
4487 | ||
4488 | static struct device_attribute dev_attr_cmos_command = | |
4489 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
4490 | ||
4491 | /* --------------------------------------------------------------------- */ | |
4492 | ||
a5763f22 | 4493 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 4494 | { |
b616004c HMH |
4495 | int res; |
4496 | ||
fe08bc4b HMH |
4497 | vdbg_printk(TPACPI_DBG_INIT, |
4498 | "initializing cmos commands subdriver\n"); | |
4499 | ||
e0c7dfe7 | 4500 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 4501 | |
fe08bc4b HMH |
4502 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
4503 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
4504 | |
4505 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4506 | if (res) | |
4507 | return res; | |
4508 | ||
5fba344c HMH |
4509 | return (cmos_handle)? 0 : 1; |
4510 | } | |
4511 | ||
b616004c HMH |
4512 | static void cmos_exit(void) |
4513 | { | |
4514 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
4515 | } | |
4516 | ||
78f81cc4 | 4517 | static int cmos_read(char *p) |
1da177e4 LT |
4518 | { |
4519 | int len = 0; | |
4520 | ||
78f81cc4 BD |
4521 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4522 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
4523 | if (!cmos_handle) |
4524 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4525 | else { | |
4526 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 4527 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
4528 | } |
4529 | ||
4530 | return len; | |
4531 | } | |
4532 | ||
78f81cc4 | 4533 | static int cmos_write(char *buf) |
1da177e4 LT |
4534 | { |
4535 | char *cmd; | |
c9bea99c | 4536 | int cmos_cmd, res; |
1da177e4 LT |
4537 | |
4538 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
4539 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
4540 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
4541 | /* cmos_cmd set */ |
4542 | } else | |
4543 | return -EINVAL; | |
4544 | ||
c9bea99c HMH |
4545 | res = issue_thinkpad_cmos_command(cmos_cmd); |
4546 | if (res) | |
4547 | return res; | |
1da177e4 LT |
4548 | } |
4549 | ||
4550 | return 0; | |
78f81cc4 BD |
4551 | } |
4552 | ||
a5763f22 HMH |
4553 | static struct ibm_struct cmos_driver_data = { |
4554 | .name = "cmos", | |
4555 | .read = cmos_read, | |
4556 | .write = cmos_write, | |
b616004c | 4557 | .exit = cmos_exit, |
a5763f22 | 4558 | }; |
56b6aeb0 HMH |
4559 | |
4560 | /************************************************************************* | |
4561 | * LED subdriver | |
4562 | */ | |
4563 | ||
f74a27d4 HMH |
4564 | enum led_access_mode { |
4565 | TPACPI_LED_NONE = 0, | |
4566 | TPACPI_LED_570, /* 570 */ | |
4567 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
4568 | TPACPI_LED_NEW, /* all others */ | |
4569 | }; | |
4570 | ||
4571 | enum { /* For TPACPI_LED_OLD */ | |
4572 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
4573 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
4574 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
4575 | }; | |
4576 | ||
4fa6811b HMH |
4577 | enum led_status_t { |
4578 | TPACPI_LED_OFF = 0, | |
4579 | TPACPI_LED_ON, | |
4580 | TPACPI_LED_BLINK, | |
4581 | }; | |
4582 | ||
9a8e1738 | 4583 | static enum led_access_mode led_supported; |
78f81cc4 | 4584 | |
e0c7dfe7 | 4585 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
35ff8b9f HMH |
4586 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ |
4587 | /* T20-22, X20-21 */ | |
56b6aeb0 HMH |
4588 | "LED", /* all others */ |
4589 | ); /* R30, R31 */ | |
4590 | ||
af116101 HMH |
4591 | #define TPACPI_LED_NUMLEDS 8 |
4592 | static struct tpacpi_led_classdev *tpacpi_leds; | |
4593 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 4594 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
4595 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
4596 | "tpacpi::power", | |
4597 | "tpacpi:orange:batt", | |
4598 | "tpacpi:green:batt", | |
4599 | "tpacpi::dock_active", | |
4600 | "tpacpi::bay_active", | |
4601 | "tpacpi::dock_batt", | |
4602 | "tpacpi::unknown_led", | |
4603 | "tpacpi::standby", | |
4604 | }; | |
4605 | ||
24e45bbe | 4606 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
4607 | { |
4608 | int status; | |
af116101 | 4609 | enum led_status_t led_s; |
4fa6811b HMH |
4610 | |
4611 | switch (led_supported) { | |
4612 | case TPACPI_LED_570: | |
4613 | if (!acpi_evalf(ec_handle, | |
4614 | &status, "GLED", "dd", 1 << led)) | |
4615 | return -EIO; | |
af116101 | 4616 | led_s = (status == 0)? |
4fa6811b HMH |
4617 | TPACPI_LED_OFF : |
4618 | ((status == 1)? | |
4619 | TPACPI_LED_ON : | |
4620 | TPACPI_LED_BLINK); | |
af116101 HMH |
4621 | tpacpi_led_state_cache[led] = led_s; |
4622 | return led_s; | |
4fa6811b HMH |
4623 | default: |
4624 | return -ENXIO; | |
4625 | } | |
4626 | ||
4627 | /* not reached */ | |
4628 | } | |
4629 | ||
24e45bbe HMH |
4630 | static int led_set_status(const unsigned int led, |
4631 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
4632 | { |
4633 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
4634 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
4635 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
4636 | |
4637 | int rc = 0; | |
4638 | ||
4639 | switch (led_supported) { | |
4640 | case TPACPI_LED_570: | |
24e45bbe HMH |
4641 | /* 570 */ |
4642 | if (led > 7) | |
4643 | return -EINVAL; | |
4644 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
4645 | (1 << led), led_sled_arg1[ledstatus])) | |
4646 | rc = -EIO; | |
4647 | break; | |
4fa6811b | 4648 | case TPACPI_LED_OLD: |
24e45bbe HMH |
4649 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
4650 | if (led > 7) | |
4651 | return -EINVAL; | |
4652 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); | |
4653 | if (rc >= 0) | |
4654 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
4655 | (ledstatus == TPACPI_LED_BLINK) << led); | |
4656 | if (rc >= 0) | |
4657 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
4658 | (ledstatus != TPACPI_LED_OFF) << led); | |
4659 | break; | |
4fa6811b | 4660 | case TPACPI_LED_NEW: |
24e45bbe HMH |
4661 | /* all others */ |
4662 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
4663 | led, led_led_arg1[ledstatus])) | |
4664 | rc = -EIO; | |
4665 | break; | |
4fa6811b HMH |
4666 | default: |
4667 | rc = -ENXIO; | |
4668 | } | |
4669 | ||
af116101 HMH |
4670 | if (!rc) |
4671 | tpacpi_led_state_cache[led] = ledstatus; | |
4672 | ||
4673 | return rc; | |
4674 | } | |
4675 | ||
4676 | static void led_sysfs_set_status(unsigned int led, | |
4677 | enum led_brightness brightness) | |
4678 | { | |
4679 | led_set_status(led, | |
4680 | (brightness == LED_OFF) ? | |
4681 | TPACPI_LED_OFF : | |
4682 | (tpacpi_led_state_cache[led] == TPACPI_LED_BLINK) ? | |
4683 | TPACPI_LED_BLINK : TPACPI_LED_ON); | |
4684 | } | |
4685 | ||
4686 | static void led_set_status_worker(struct work_struct *work) | |
4687 | { | |
4688 | struct tpacpi_led_classdev *data = | |
4689 | container_of(work, struct tpacpi_led_classdev, work); | |
4690 | ||
4691 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) | |
4692 | led_sysfs_set_status(data->led, data->new_brightness); | |
4693 | } | |
4694 | ||
4695 | static void led_sysfs_set(struct led_classdev *led_cdev, | |
4696 | enum led_brightness brightness) | |
4697 | { | |
4698 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
4699 | struct tpacpi_led_classdev, led_classdev); | |
4700 | ||
4701 | data->new_brightness = brightness; | |
e0e3c061 | 4702 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
4703 | } |
4704 | ||
4705 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
4706 | unsigned long *delay_on, unsigned long *delay_off) | |
4707 | { | |
4708 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
4709 | struct tpacpi_led_classdev, led_classdev); | |
4710 | ||
4711 | /* Can we choose the flash rate? */ | |
4712 | if (*delay_on == 0 && *delay_off == 0) { | |
4713 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
4714 | *delay_on = 500; /* ms */ | |
4715 | *delay_off = 500; /* ms */ | |
4716 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
4717 | return -EINVAL; | |
4718 | ||
4719 | data->new_brightness = TPACPI_LED_BLINK; | |
e0e3c061 | 4720 | queue_work(tpacpi_wq, &data->work); |
af116101 HMH |
4721 | |
4722 | return 0; | |
4723 | } | |
4724 | ||
4725 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
4726 | { | |
4727 | int rc; | |
4728 | ||
4729 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
4730 | struct tpacpi_led_classdev, led_classdev); | |
4731 | ||
4732 | rc = led_get_status(data->led); | |
4733 | ||
4734 | if (rc == TPACPI_LED_OFF || rc < 0) | |
4735 | rc = LED_OFF; /* no error handling in led class :( */ | |
4736 | else | |
4737 | rc = LED_FULL; | |
4738 | ||
4fa6811b HMH |
4739 | return rc; |
4740 | } | |
4741 | ||
af116101 HMH |
4742 | static void led_exit(void) |
4743 | { | |
4744 | unsigned int i; | |
4745 | ||
4746 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
4747 | if (tpacpi_leds[i].led_classdev.name) | |
4748 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
4749 | } | |
4750 | ||
4751 | kfree(tpacpi_leds); | |
af116101 HMH |
4752 | } |
4753 | ||
a5763f22 | 4754 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 4755 | { |
af116101 HMH |
4756 | unsigned int i; |
4757 | int rc; | |
4758 | ||
fe08bc4b HMH |
4759 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
4760 | ||
e0c7dfe7 | 4761 | TPACPI_ACPIHANDLE_INIT(led); |
5fba344c | 4762 | |
78f81cc4 BD |
4763 | if (!led_handle) |
4764 | /* led not supported on R30, R31 */ | |
efa27145 | 4765 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
4766 | else if (strlencmp(led_path, "SLED") == 0) |
4767 | /* 570 */ | |
efa27145 | 4768 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
4769 | else if (strlencmp(led_path, "SYSL") == 0) |
4770 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 4771 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
4772 | else |
4773 | /* all others */ | |
efa27145 | 4774 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 4775 | |
fe08bc4b HMH |
4776 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
4777 | str_supported(led_supported), led_supported); | |
4778 | ||
af116101 HMH |
4779 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
4780 | GFP_KERNEL); | |
4781 | if (!tpacpi_leds) { | |
4782 | printk(TPACPI_ERR "Out of memory for LED data\n"); | |
4783 | return -ENOMEM; | |
4784 | } | |
4785 | ||
4786 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
4787 | tpacpi_leds[i].led = i; | |
4788 | ||
4789 | tpacpi_leds[i].led_classdev.brightness_set = &led_sysfs_set; | |
4790 | tpacpi_leds[i].led_classdev.blink_set = &led_sysfs_blink_set; | |
4791 | if (led_supported == TPACPI_LED_570) | |
4792 | tpacpi_leds[i].led_classdev.brightness_get = | |
4793 | &led_sysfs_get; | |
4794 | ||
4795 | tpacpi_leds[i].led_classdev.name = tpacpi_led_names[i]; | |
4796 | ||
4797 | INIT_WORK(&tpacpi_leds[i].work, led_set_status_worker); | |
4798 | ||
4799 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
4800 | &tpacpi_leds[i].led_classdev); | |
4801 | if (rc < 0) { | |
4802 | tpacpi_leds[i].led_classdev.name = NULL; | |
4803 | led_exit(); | |
4804 | return rc; | |
4805 | } | |
4806 | } | |
4807 | ||
5fba344c | 4808 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
4809 | } |
4810 | ||
4fa6811b HMH |
4811 | #define str_led_status(s) \ |
4812 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
4813 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 BD |
4814 | |
4815 | static int led_read(char *p) | |
1da177e4 LT |
4816 | { |
4817 | int len = 0; | |
4818 | ||
78f81cc4 BD |
4819 | if (!led_supported) { |
4820 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4821 | return len; | |
4822 | } | |
4823 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
4824 | ||
efa27145 | 4825 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
4826 | /* 570 */ |
4827 | int i, status; | |
4828 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
4829 | status = led_get_status(i); |
4830 | if (status < 0) | |
78f81cc4 BD |
4831 | return -EIO; |
4832 | len += sprintf(p + len, "%d:\t\t%s\n", | |
4fa6811b | 4833 | i, str_led_status(status)); |
78f81cc4 BD |
4834 | } |
4835 | } | |
4836 | ||
1da177e4 | 4837 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 4838 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
4839 | |
4840 | return len; | |
4841 | } | |
4842 | ||
78f81cc4 | 4843 | static int led_write(char *buf) |
1da177e4 LT |
4844 | { |
4845 | char *cmd; | |
4fa6811b HMH |
4846 | int led, rc; |
4847 | enum led_status_t s; | |
78f81cc4 BD |
4848 | |
4849 | if (!led_supported) | |
4850 | return -ENODEV; | |
1da177e4 LT |
4851 | |
4852 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 4853 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
4854 | return -EINVAL; |
4855 | ||
78f81cc4 | 4856 | if (strstr(cmd, "off")) { |
4fa6811b | 4857 | s = TPACPI_LED_OFF; |
1da177e4 | 4858 | } else if (strstr(cmd, "on")) { |
4fa6811b | 4859 | s = TPACPI_LED_ON; |
78f81cc4 | 4860 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 4861 | s = TPACPI_LED_BLINK; |
78f81cc4 | 4862 | } else { |
4fa6811b | 4863 | return -EINVAL; |
78f81cc4 | 4864 | } |
4fa6811b HMH |
4865 | |
4866 | rc = led_set_status(led, s); | |
4867 | if (rc < 0) | |
4868 | return rc; | |
78f81cc4 BD |
4869 | } |
4870 | ||
4871 | return 0; | |
4872 | } | |
4873 | ||
a5763f22 HMH |
4874 | static struct ibm_struct led_driver_data = { |
4875 | .name = "led", | |
4876 | .read = led_read, | |
4877 | .write = led_write, | |
af116101 | 4878 | .exit = led_exit, |
a5763f22 HMH |
4879 | }; |
4880 | ||
56b6aeb0 HMH |
4881 | /************************************************************************* |
4882 | * Beep subdriver | |
4883 | */ | |
4884 | ||
e0c7dfe7 | 4885 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 4886 | |
a5763f22 | 4887 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 4888 | { |
fe08bc4b HMH |
4889 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
4890 | ||
e0c7dfe7 | 4891 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 4892 | |
fe08bc4b HMH |
4893 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
4894 | str_supported(beep_handle != NULL)); | |
4895 | ||
5fba344c HMH |
4896 | return (beep_handle)? 0 : 1; |
4897 | } | |
4898 | ||
78f81cc4 BD |
4899 | static int beep_read(char *p) |
4900 | { | |
4901 | int len = 0; | |
4902 | ||
4903 | if (!beep_handle) | |
4904 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4905 | else { | |
4906 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
4907 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
4908 | } | |
4909 | ||
4910 | return len; | |
4911 | } | |
4912 | ||
4913 | static int beep_write(char *buf) | |
4914 | { | |
4915 | char *cmd; | |
4916 | int beep_cmd; | |
4917 | ||
4918 | if (!beep_handle) | |
4919 | return -ENODEV; | |
4920 | ||
4921 | while ((cmd = next_cmd(&buf))) { | |
4922 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
4923 | beep_cmd >= 0 && beep_cmd <= 17) { | |
4924 | /* beep_cmd set */ | |
4925 | } else | |
4926 | return -EINVAL; | |
4927 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
4928 | return -EIO; | |
4929 | } | |
4930 | ||
4931 | return 0; | |
4932 | } | |
4933 | ||
a5763f22 HMH |
4934 | static struct ibm_struct beep_driver_data = { |
4935 | .name = "beep", | |
4936 | .read = beep_read, | |
4937 | .write = beep_write, | |
4938 | }; | |
4939 | ||
56b6aeb0 HMH |
4940 | /************************************************************************* |
4941 | * Thermal subdriver | |
4942 | */ | |
78f81cc4 | 4943 | |
f74a27d4 HMH |
4944 | enum thermal_access_mode { |
4945 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
4946 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
4947 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
4948 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
4949 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
4950 | }; | |
4951 | ||
4952 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
4953 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
4954 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
4955 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
4956 | }; | |
4957 | ||
4958 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ | |
4959 | struct ibm_thermal_sensors_struct { | |
4960 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
4961 | }; | |
4962 | ||
a26f878a | 4963 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 4964 | |
b21a15f6 HMH |
4965 | /* idx is zero-based */ |
4966 | static int thermal_get_sensor(int idx, s32 *value) | |
4967 | { | |
4968 | int t; | |
4969 | s8 tmp; | |
4970 | char tmpi[5]; | |
4971 | ||
4972 | t = TP_EC_THERMAL_TMP0; | |
4973 | ||
4974 | switch (thermal_read_mode) { | |
4975 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
4976 | case TPACPI_THERMAL_TPEC_16: | |
4977 | if (idx >= 8 && idx <= 15) { | |
4978 | t = TP_EC_THERMAL_TMP8; | |
4979 | idx -= 8; | |
4980 | } | |
4981 | /* fallthrough */ | |
4982 | #endif | |
4983 | case TPACPI_THERMAL_TPEC_8: | |
4984 | if (idx <= 7) { | |
4985 | if (!acpi_ec_read(t + idx, &tmp)) | |
4986 | return -EIO; | |
4987 | *value = tmp * 1000; | |
4988 | return 0; | |
4989 | } | |
4990 | break; | |
4991 | ||
4992 | case TPACPI_THERMAL_ACPI_UPDT: | |
4993 | if (idx <= 7) { | |
4994 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
4995 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
4996 | return -EIO; | |
4997 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
4998 | return -EIO; | |
4999 | *value = (t - 2732) * 100; | |
5000 | return 0; | |
5001 | } | |
5002 | break; | |
5003 | ||
5004 | case TPACPI_THERMAL_ACPI_TMP07: | |
5005 | if (idx <= 7) { | |
5006 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
5007 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
5008 | return -EIO; | |
5009 | if (t > 127 || t < -127) | |
5010 | t = TP_EC_THERMAL_TMP_NA; | |
5011 | *value = t * 1000; | |
5012 | return 0; | |
5013 | } | |
5014 | break; | |
5015 | ||
5016 | case TPACPI_THERMAL_NONE: | |
5017 | default: | |
5018 | return -ENOSYS; | |
5019 | } | |
5020 | ||
5021 | return -EINVAL; | |
5022 | } | |
5023 | ||
5024 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
5025 | { | |
5026 | int res, i; | |
5027 | int n; | |
5028 | ||
5029 | n = 8; | |
5030 | i = 0; | |
5031 | ||
5032 | if (!s) | |
5033 | return -EINVAL; | |
5034 | ||
5035 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
5036 | n = 16; | |
5037 | ||
35ff8b9f | 5038 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
5039 | res = thermal_get_sensor(i, &s->temp[i]); |
5040 | if (res) | |
5041 | return res; | |
5042 | } | |
5043 | ||
5044 | return n; | |
5045 | } | |
f74a27d4 | 5046 | |
2c37aa4e HMH |
5047 | /* sysfs temp##_input -------------------------------------------------- */ |
5048 | ||
5049 | static ssize_t thermal_temp_input_show(struct device *dev, | |
5050 | struct device_attribute *attr, | |
5051 | char *buf) | |
5052 | { | |
5053 | struct sensor_device_attribute *sensor_attr = | |
5054 | to_sensor_dev_attr(attr); | |
5055 | int idx = sensor_attr->index; | |
5056 | s32 value; | |
5057 | int res; | |
5058 | ||
5059 | res = thermal_get_sensor(idx, &value); | |
5060 | if (res) | |
5061 | return res; | |
5062 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
5063 | return -ENXIO; | |
5064 | ||
5065 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
5066 | } | |
5067 | ||
5068 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
5069 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
5070 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
5071 | |
5072 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
5073 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
5074 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
5075 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
5076 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
5077 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
5078 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
5079 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
5080 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
5081 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
5082 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
5083 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
5084 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
5085 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
5086 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
5087 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
5088 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
5089 | }; | |
5090 | ||
5091 | #define THERMAL_ATTRS(X) \ | |
5092 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
5093 | ||
5094 | static struct attribute *thermal_temp_input_attr[] = { | |
5095 | THERMAL_ATTRS(8), | |
5096 | THERMAL_ATTRS(9), | |
5097 | THERMAL_ATTRS(10), | |
5098 | THERMAL_ATTRS(11), | |
5099 | THERMAL_ATTRS(12), | |
5100 | THERMAL_ATTRS(13), | |
5101 | THERMAL_ATTRS(14), | |
5102 | THERMAL_ATTRS(15), | |
5103 | THERMAL_ATTRS(0), | |
5104 | THERMAL_ATTRS(1), | |
5105 | THERMAL_ATTRS(2), | |
5106 | THERMAL_ATTRS(3), | |
5107 | THERMAL_ATTRS(4), | |
5108 | THERMAL_ATTRS(5), | |
5109 | THERMAL_ATTRS(6), | |
5110 | THERMAL_ATTRS(7), | |
5111 | NULL | |
5112 | }; | |
5113 | ||
5114 | static const struct attribute_group thermal_temp_input16_group = { | |
5115 | .attrs = thermal_temp_input_attr | |
5116 | }; | |
5117 | ||
5118 | static const struct attribute_group thermal_temp_input8_group = { | |
5119 | .attrs = &thermal_temp_input_attr[8] | |
5120 | }; | |
5121 | ||
5122 | #undef THERMAL_SENSOR_ATTR_TEMP | |
5123 | #undef THERMAL_ATTRS | |
5124 | ||
5125 | /* --------------------------------------------------------------------- */ | |
5126 | ||
a5763f22 | 5127 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 5128 | { |
60eb0b35 HMH |
5129 | u8 t, ta1, ta2; |
5130 | int i; | |
5fba344c | 5131 | int acpi_tmp7; |
2c37aa4e | 5132 | int res; |
5fba344c | 5133 | |
fe08bc4b HMH |
5134 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
5135 | ||
5fba344c | 5136 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 5137 | |
3d6f99ca | 5138 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
5139 | /* |
5140 | * Direct EC access mode: sensors at registers | |
5141 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
5142 | * non-implemented, thermal sensors return 0x80 when | |
5143 | * not available | |
5144 | */ | |
78f81cc4 | 5145 | |
60eb0b35 HMH |
5146 | ta1 = ta2 = 0; |
5147 | for (i = 0; i < 8; i++) { | |
04cc862c | 5148 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
5149 | ta1 |= t; |
5150 | } else { | |
5151 | ta1 = 0; | |
5152 | break; | |
5153 | } | |
04cc862c | 5154 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
5155 | ta2 |= t; |
5156 | } else { | |
5157 | ta1 = 0; | |
5158 | break; | |
5159 | } | |
5160 | } | |
5161 | if (ta1 == 0) { | |
5162 | /* This is sheer paranoia, but we handle it anyway */ | |
5163 | if (acpi_tmp7) { | |
e0c7dfe7 | 5164 | printk(TPACPI_ERR |
60eb0b35 | 5165 | "ThinkPad ACPI EC access misbehaving, " |
35ff8b9f HMH |
5166 | "falling back to ACPI TMPx access " |
5167 | "mode\n"); | |
efa27145 | 5168 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 5169 | } else { |
e0c7dfe7 | 5170 | printk(TPACPI_ERR |
60eb0b35 HMH |
5171 | "ThinkPad ACPI EC access misbehaving, " |
5172 | "disabling thermal sensors access\n"); | |
efa27145 | 5173 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
5174 | } |
5175 | } else { | |
5176 | thermal_read_mode = | |
5177 | (ta2 != 0) ? | |
efa27145 | 5178 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
5179 | } |
5180 | } else if (acpi_tmp7) { | |
a26f878a HMH |
5181 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
5182 | /* 600e/x, 770e, 770x */ | |
efa27145 | 5183 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
5184 | } else { |
5185 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 5186 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
5187 | } |
5188 | } else { | |
5189 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 5190 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 5191 | } |
78f81cc4 | 5192 | |
fe08bc4b HMH |
5193 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
5194 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
5195 | thermal_read_mode); | |
5196 | ||
35ff8b9f | 5197 | switch (thermal_read_mode) { |
2c37aa4e | 5198 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5199 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5200 | &thermal_temp_input16_group); |
5201 | if (res) | |
5202 | return res; | |
5203 | break; | |
5204 | case TPACPI_THERMAL_TPEC_8: | |
5205 | case TPACPI_THERMAL_ACPI_TMP07: | |
5206 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5207 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5208 | &thermal_temp_input8_group); |
5209 | if (res) | |
5210 | return res; | |
5211 | break; | |
5212 | case TPACPI_THERMAL_NONE: | |
5213 | default: | |
5214 | return 1; | |
5215 | } | |
5216 | ||
5217 | return 0; | |
5218 | } | |
5219 | ||
5220 | static void thermal_exit(void) | |
5221 | { | |
35ff8b9f | 5222 | switch (thermal_read_mode) { |
2c37aa4e | 5223 | case TPACPI_THERMAL_TPEC_16: |
7fd40029 | 5224 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5225 | &thermal_temp_input16_group); |
5226 | break; | |
5227 | case TPACPI_THERMAL_TPEC_8: | |
5228 | case TPACPI_THERMAL_ACPI_TMP07: | |
5229 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 5230 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
5231 | &thermal_temp_input16_group); |
5232 | break; | |
5233 | case TPACPI_THERMAL_NONE: | |
5234 | default: | |
5235 | break; | |
5236 | } | |
78f81cc4 BD |
5237 | } |
5238 | ||
a26f878a HMH |
5239 | static int thermal_read(char *p) |
5240 | { | |
5241 | int len = 0; | |
5242 | int n, i; | |
5243 | struct ibm_thermal_sensors_struct t; | |
5244 | ||
5245 | n = thermal_get_sensors(&t); | |
5246 | if (unlikely(n < 0)) | |
5247 | return n; | |
5248 | ||
5249 | len += sprintf(p + len, "temperatures:\t"); | |
5250 | ||
5251 | if (n > 0) { | |
5252 | for (i = 0; i < (n - 1); i++) | |
5253 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
5254 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
5255 | } else | |
5256 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
5257 | |
5258 | return len; | |
5259 | } | |
5260 | ||
a5763f22 HMH |
5261 | static struct ibm_struct thermal_driver_data = { |
5262 | .name = "thermal", | |
5263 | .read = thermal_read, | |
2c37aa4e | 5264 | .exit = thermal_exit, |
a5763f22 HMH |
5265 | }; |
5266 | ||
56b6aeb0 HMH |
5267 | /************************************************************************* |
5268 | * EC Dump subdriver | |
5269 | */ | |
5270 | ||
78f81cc4 BD |
5271 | static u8 ecdump_regs[256]; |
5272 | ||
5273 | static int ecdump_read(char *p) | |
5274 | { | |
5275 | int len = 0; | |
5276 | int i, j; | |
5277 | u8 v; | |
5278 | ||
5279 | len += sprintf(p + len, "EC " | |
5280 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
5281 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
5282 | for (i = 0; i < 256; i += 16) { | |
5283 | len += sprintf(p + len, "EC 0x%02x:", i); | |
5284 | for (j = 0; j < 16; j++) { | |
5285 | if (!acpi_ec_read(i + j, &v)) | |
5286 | break; | |
5287 | if (v != ecdump_regs[i + j]) | |
5288 | len += sprintf(p + len, " *%02x", v); | |
5289 | else | |
5290 | len += sprintf(p + len, " %02x", v); | |
5291 | ecdump_regs[i + j] = v; | |
5292 | } | |
5293 | len += sprintf(p + len, "\n"); | |
5294 | if (j != 16) | |
5295 | break; | |
5296 | } | |
5297 | ||
5298 | /* These are way too dangerous to advertise openly... */ | |
5299 | #if 0 | |
5300 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
5301 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
5302 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
5303 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
5304 | #endif | |
5305 | return len; | |
5306 | } | |
5307 | ||
5308 | static int ecdump_write(char *buf) | |
5309 | { | |
5310 | char *cmd; | |
5311 | int i, v; | |
5312 | ||
5313 | while ((cmd = next_cmd(&buf))) { | |
5314 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
5315 | /* i and v set */ | |
5316 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
5317 | /* i and v set */ | |
5318 | } else | |
5319 | return -EINVAL; | |
5320 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
5321 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
5322 | return -EIO; |
5323 | } else | |
5324 | return -EINVAL; | |
5325 | } | |
5326 | ||
5327 | return 0; | |
78f81cc4 BD |
5328 | } |
5329 | ||
a5763f22 HMH |
5330 | static struct ibm_struct ecdump_driver_data = { |
5331 | .name = "ecdump", | |
5332 | .read = ecdump_read, | |
5333 | .write = ecdump_write, | |
92641177 | 5334 | .flags.experimental = 1, |
a5763f22 HMH |
5335 | }; |
5336 | ||
56b6aeb0 HMH |
5337 | /************************************************************************* |
5338 | * Backlight/brightness subdriver | |
5339 | */ | |
5340 | ||
f74a27d4 HMH |
5341 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
5342 | ||
e11aecf1 HMH |
5343 | enum { |
5344 | TP_EC_BACKLIGHT = 0x31, | |
5345 | ||
5346 | /* TP_EC_BACKLIGHT bitmasks */ | |
5347 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
5348 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
5349 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
5350 | }; | |
5351 | ||
94954cc6 | 5352 | static struct backlight_device *ibm_backlight_device; |
f74a27d4 HMH |
5353 | static int brightness_mode; |
5354 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ | |
5355 | ||
b21a15f6 | 5356 | static struct mutex brightness_mutex; |
56b6aeb0 | 5357 | |
b21a15f6 HMH |
5358 | /* |
5359 | * ThinkPads can read brightness from two places: EC 0x31, or | |
5360 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
e11aecf1 HMH |
5361 | * |
5362 | * EC 0x31 has the following layout | |
5363 | * Bit 7: unknown function | |
5364 | * Bit 6: unknown function | |
5365 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
5366 | * Bit 4: must be set to zero to avoid problems | |
5367 | * Bit 3-0: backlight brightness level | |
5368 | * | |
5369 | * brightness_get_raw returns status data in the EC 0x31 layout | |
b21a15f6 | 5370 | */ |
e11aecf1 | 5371 | static int brightness_get_raw(int *status) |
b21a15f6 HMH |
5372 | { |
5373 | u8 lec = 0, lcmos = 0, level = 0; | |
5374 | ||
5375 | if (brightness_mode & 1) { | |
e11aecf1 | 5376 | if (!acpi_ec_read(TP_EC_BACKLIGHT, &lec)) |
b21a15f6 | 5377 | return -EIO; |
e11aecf1 | 5378 | level = lec & TP_EC_BACKLIGHT_LVLMSK; |
b21a15f6 HMH |
5379 | }; |
5380 | if (brightness_mode & 2) { | |
5381 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
5382 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
5383 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
5384 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
5385 | level = lcmos; | |
5386 | } | |
5387 | ||
2d5e94d7 | 5388 | if (brightness_mode == 3) { |
e11aecf1 HMH |
5389 | *status = lec; /* Prefer EC, CMOS is just a backing store */ |
5390 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
2d5e94d7 HMH |
5391 | if (lec == lcmos) |
5392 | tp_warned.bright_cmos_ec_unsync = 0; | |
5393 | else { | |
5394 | if (!tp_warned.bright_cmos_ec_unsync) { | |
5395 | printk(TPACPI_ERR | |
5396 | "CMOS NVRAM (%u) and EC (%u) do not " | |
5397 | "agree on display brightness level\n", | |
5398 | (unsigned int) lcmos, | |
5399 | (unsigned int) lec); | |
5400 | tp_warned.bright_cmos_ec_unsync = 1; | |
5401 | } | |
5402 | return -EIO; | |
5403 | } | |
e11aecf1 HMH |
5404 | } else { |
5405 | *status = level; | |
b21a15f6 HMH |
5406 | } |
5407 | ||
e11aecf1 | 5408 | return 0; |
b21a15f6 HMH |
5409 | } |
5410 | ||
5411 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
5412 | static int brightness_set(int value) | |
5413 | { | |
5414 | int cmos_cmd, inc, i, res; | |
5415 | int current_value; | |
e11aecf1 | 5416 | int command_bits; |
b21a15f6 | 5417 | |
e11aecf1 HMH |
5418 | if (value > ((tp_features.bright_16levels)? 15 : 7) || |
5419 | value < 0) | |
b21a15f6 HMH |
5420 | return -EINVAL; |
5421 | ||
7646ea88 | 5422 | res = mutex_lock_killable(&brightness_mutex); |
b21a15f6 HMH |
5423 | if (res < 0) |
5424 | return res; | |
5425 | ||
e11aecf1 HMH |
5426 | res = brightness_get_raw(¤t_value); |
5427 | if (res < 0) | |
b21a15f6 | 5428 | goto errout; |
e11aecf1 HMH |
5429 | |
5430 | command_bits = current_value & TP_EC_BACKLIGHT_CMDMSK; | |
5431 | current_value &= TP_EC_BACKLIGHT_LVLMSK; | |
b21a15f6 HMH |
5432 | |
5433 | cmos_cmd = value > current_value ? | |
5434 | TP_CMOS_BRIGHTNESS_UP : | |
5435 | TP_CMOS_BRIGHTNESS_DOWN; | |
5436 | inc = (value > current_value)? 1 : -1; | |
5437 | ||
5438 | res = 0; | |
5439 | for (i = current_value; i != value; i += inc) { | |
5440 | if ((brightness_mode & 2) && | |
5441 | issue_thinkpad_cmos_command(cmos_cmd)) { | |
5442 | res = -EIO; | |
5443 | goto errout; | |
5444 | } | |
5445 | if ((brightness_mode & 1) && | |
e11aecf1 HMH |
5446 | !acpi_ec_write(TP_EC_BACKLIGHT, |
5447 | (i + inc) | command_bits)) { | |
b21a15f6 HMH |
5448 | res = -EIO; |
5449 | goto errout;; | |
5450 | } | |
5451 | } | |
5452 | ||
5453 | errout: | |
5454 | mutex_unlock(&brightness_mutex); | |
5455 | return res; | |
5456 | } | |
5457 | ||
5458 | /* sysfs backlight class ----------------------------------------------- */ | |
5459 | ||
5460 | static int brightness_update_status(struct backlight_device *bd) | |
5461 | { | |
5462 | /* it is the backlight class's job (caller) to handle | |
5463 | * EINTR and other errors properly */ | |
5464 | return brightness_set( | |
5465 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
5466 | bd->props.power == FB_BLANK_UNBLANK) ? | |
5467 | bd->props.brightness : 0); | |
5468 | } | |
5469 | ||
e11aecf1 | 5470 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 5471 | { |
e11aecf1 | 5472 | int status, res; |
a3f104c0 | 5473 | |
e11aecf1 HMH |
5474 | res = brightness_get_raw(&status); |
5475 | if (res < 0) | |
5476 | return 0; /* FIXME: teach backlight about error handling */ | |
e11e211a | 5477 | |
e11aecf1 | 5478 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
5479 | } |
5480 | ||
b21a15f6 | 5481 | static struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
5482 | .get_brightness = brightness_get, |
5483 | .update_status = brightness_update_status, | |
56b6aeb0 | 5484 | }; |
e11e211a | 5485 | |
b21a15f6 | 5486 | /* --------------------------------------------------------------------- */ |
e11e211a | 5487 | |
a5763f22 | 5488 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
5489 | { |
5490 | int b; | |
5491 | ||
fe08bc4b HMH |
5492 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
5493 | ||
f432255e HMH |
5494 | mutex_init(&brightness_mutex); |
5495 | ||
b5972796 HMH |
5496 | /* |
5497 | * We always attempt to detect acpi support, so as to switch | |
5498 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
5499 | * going to publish a backlight interface | |
5500 | */ | |
5501 | b = tpacpi_check_std_acpi_brightness_support(); | |
5502 | if (b > 0) { | |
2dba1b5d TR |
5503 | |
5504 | if (acpi_video_backlight_support()) { | |
5505 | if (brightness_enable > 1) { | |
5506 | printk(TPACPI_NOTICE | |
5507 | "Standard ACPI backlight interface " | |
5508 | "available, not loading native one.\n"); | |
5509 | return 1; | |
5510 | } else if (brightness_enable == 1) { | |
5511 | printk(TPACPI_NOTICE | |
5512 | "Backlight control force enabled, even if standard " | |
5513 | "ACPI backlight interface is available\n"); | |
5514 | } | |
5515 | } else { | |
5516 | if (brightness_enable > 1) { | |
5517 | printk(TPACPI_NOTICE | |
5518 | "Standard ACPI backlight interface not " | |
5519 | "available, thinkpad_acpi native " | |
5520 | "brightness control enabled\n"); | |
5521 | } | |
e11e211a | 5522 | } |
87cc537a HMH |
5523 | } |
5524 | ||
b5972796 HMH |
5525 | if (!brightness_enable) { |
5526 | dbg_printk(TPACPI_DBG_INIT, | |
5527 | "brightness support disabled by " | |
5528 | "module parameter\n"); | |
5529 | return 1; | |
5530 | } | |
5531 | ||
5532 | if (b > 16) { | |
5533 | printk(TPACPI_ERR | |
5534 | "Unsupported brightness interface, " | |
5535 | "please contact %s\n", TPACPI_MAIL); | |
5536 | return 1; | |
5537 | } | |
5538 | if (b == 16) | |
5539 | tp_features.bright_16levels = 1; | |
5540 | ||
24d3b774 HMH |
5541 | if (!brightness_mode) { |
5542 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
5543 | brightness_mode = 2; | |
5544 | else | |
5545 | brightness_mode = 3; | |
5546 | ||
5547 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
5548 | brightness_mode); | |
5549 | } | |
5550 | ||
5551 | if (brightness_mode > 3) | |
5552 | return -EINVAL; | |
5553 | ||
e11aecf1 | 5554 | if (brightness_get_raw(&b) < 0) |
24d3b774 | 5555 | return 1; |
56b6aeb0 | 5556 | |
a3f104c0 | 5557 | if (tp_features.bright_16levels) |
35ff8b9f HMH |
5558 | printk(TPACPI_INFO |
5559 | "detected a 16-level brightness capable ThinkPad\n"); | |
a3f104c0 | 5560 | |
7d5a015e HMH |
5561 | ibm_backlight_device = backlight_device_register( |
5562 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
5563 | &ibm_backlight_data); | |
56b6aeb0 | 5564 | if (IS_ERR(ibm_backlight_device)) { |
e0c7dfe7 | 5565 | printk(TPACPI_ERR "Could not register backlight device\n"); |
56b6aeb0 HMH |
5566 | return PTR_ERR(ibm_backlight_device); |
5567 | } | |
fe08bc4b | 5568 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 5569 | |
a3f104c0 HMH |
5570 | ibm_backlight_device->props.max_brightness = |
5571 | (tp_features.bright_16levels)? 15 : 7; | |
e11aecf1 | 5572 | ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; |
56b6aeb0 HMH |
5573 | backlight_update_status(ibm_backlight_device); |
5574 | ||
5575 | return 0; | |
5576 | } | |
5577 | ||
5578 | static void brightness_exit(void) | |
5579 | { | |
5580 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
5581 | vdbg_printk(TPACPI_DBG_EXIT, |
5582 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 | 5583 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 HMH |
5584 | } |
5585 | } | |
5586 | ||
56b6aeb0 HMH |
5587 | static int brightness_read(char *p) |
5588 | { | |
5589 | int len = 0; | |
5590 | int level; | |
5591 | ||
35ff8b9f HMH |
5592 | level = brightness_get(NULL); |
5593 | if (level < 0) { | |
56b6aeb0 HMH |
5594 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
5595 | } else { | |
a3f104c0 | 5596 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
5597 | len += sprintf(p + len, "commands:\tup, down\n"); |
5598 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
5599 | " (<level> is 0-%d)\n", |
5600 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
5601 | } |
5602 | ||
5603 | return len; | |
5604 | } | |
5605 | ||
8acb0250 HM |
5606 | static int brightness_write(char *buf) |
5607 | { | |
5608 | int level; | |
4273af8d | 5609 | int rc; |
1da177e4 | 5610 | char *cmd; |
a3f104c0 | 5611 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 5612 | |
4273af8d HMH |
5613 | level = brightness_get(NULL); |
5614 | if (level < 0) | |
5615 | return level; | |
78f81cc4 | 5616 | |
4273af8d | 5617 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 5618 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
5619 | if (level < max_level) |
5620 | level++; | |
78f81cc4 | 5621 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
5622 | if (level > 0) |
5623 | level--; | |
5624 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
5625 | level >= 0 && level <= max_level) { | |
5626 | /* new level set */ | |
78f81cc4 BD |
5627 | } else |
5628 | return -EINVAL; | |
78f81cc4 BD |
5629 | } |
5630 | ||
4273af8d HMH |
5631 | /* |
5632 | * Now we know what the final level should be, so we try to set it. | |
5633 | * Doing it this way makes the syscall restartable in case of EINTR | |
5634 | */ | |
5635 | rc = brightness_set(level); | |
5636 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
5637 | } |
5638 | ||
a5763f22 HMH |
5639 | static struct ibm_struct brightness_driver_data = { |
5640 | .name = "brightness", | |
5641 | .read = brightness_read, | |
5642 | .write = brightness_write, | |
5643 | .exit = brightness_exit, | |
5644 | }; | |
5645 | ||
56b6aeb0 HMH |
5646 | /************************************************************************* |
5647 | * Volume subdriver | |
5648 | */ | |
fb87a811 | 5649 | |
f74a27d4 HMH |
5650 | static int volume_offset = 0x30; |
5651 | ||
78f81cc4 BD |
5652 | static int volume_read(char *p) |
5653 | { | |
5654 | int len = 0; | |
5655 | u8 level; | |
5656 | ||
5657 | if (!acpi_ec_read(volume_offset, &level)) { | |
5658 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
5659 | } else { | |
5660 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
5661 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
5662 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
5663 | len += sprintf(p + len, "commands:\tlevel <level>" | |
5664 | " (<level> is 0-15)\n"); | |
5665 | } | |
5666 | ||
5667 | return len; | |
5668 | } | |
5669 | ||
78f81cc4 BD |
5670 | static int volume_write(char *buf) |
5671 | { | |
5672 | int cmos_cmd, inc, i; | |
5673 | u8 level, mute; | |
5674 | int new_level, new_mute; | |
5675 | char *cmd; | |
5676 | ||
5677 | while ((cmd = next_cmd(&buf))) { | |
5678 | if (!acpi_ec_read(volume_offset, &level)) | |
5679 | return -EIO; | |
5680 | new_mute = mute = level & 0x40; | |
5681 | new_level = level = level & 0xf; | |
5682 | ||
5683 | if (strlencmp(cmd, "up") == 0) { | |
5684 | if (mute) | |
5685 | new_mute = 0; | |
5686 | else | |
5687 | new_level = level == 15 ? 15 : level + 1; | |
5688 | } else if (strlencmp(cmd, "down") == 0) { | |
5689 | if (mute) | |
5690 | new_mute = 0; | |
5691 | else | |
5692 | new_level = level == 0 ? 0 : level - 1; | |
5693 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
5694 | new_level >= 0 && new_level <= 15) { | |
5695 | /* new_level set */ | |
5696 | } else if (strlencmp(cmd, "mute") == 0) { | |
5697 | new_mute = 0x40; | |
1da177e4 LT |
5698 | } else |
5699 | return -EINVAL; | |
5700 | ||
35ff8b9f HMH |
5701 | if (new_level != level) { |
5702 | /* mute doesn't change */ | |
5703 | ||
5704 | cmos_cmd = (new_level > level) ? | |
5705 | TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; | |
78f81cc4 BD |
5706 | inc = new_level > level ? 1 : -1; |
5707 | ||
c9bea99c | 5708 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
5709 | !acpi_ec_write(volume_offset, level))) |
5710 | return -EIO; | |
5711 | ||
5712 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 5713 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
5714 | !acpi_ec_write(volume_offset, i + inc)) |
5715 | return -EIO; | |
5716 | ||
35ff8b9f HMH |
5717 | if (mute && |
5718 | (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || | |
5719 | !acpi_ec_write(volume_offset, new_level + mute))) { | |
78f81cc4 | 5720 | return -EIO; |
35ff8b9f | 5721 | } |
78f81cc4 BD |
5722 | } |
5723 | ||
35ff8b9f HMH |
5724 | if (new_mute != mute) { |
5725 | /* level doesn't change */ | |
5726 | ||
5727 | cmos_cmd = (new_mute) ? | |
5728 | TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; | |
78f81cc4 | 5729 | |
c9bea99c | 5730 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
5731 | !acpi_ec_write(volume_offset, level + new_mute)) |
5732 | return -EIO; | |
5733 | } | |
5734 | } | |
5735 | ||
5736 | return 0; | |
5737 | } | |
5738 | ||
a5763f22 HMH |
5739 | static struct ibm_struct volume_driver_data = { |
5740 | .name = "volume", | |
5741 | .read = volume_read, | |
5742 | .write = volume_write, | |
5743 | }; | |
56b6aeb0 HMH |
5744 | |
5745 | /************************************************************************* | |
5746 | * Fan subdriver | |
5747 | */ | |
5748 | ||
5749 | /* | |
5750 | * FAN ACCESS MODES | |
5751 | * | |
efa27145 | 5752 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
5753 | * ACPI GFAN method: returns fan level |
5754 | * | |
efa27145 | 5755 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 5756 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 5757 | * |
efa27145 | 5758 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
5759 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
5760 | * | |
f51d1a39 HMH |
5761 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
5762 | * it for writing. | |
56b6aeb0 | 5763 | * |
efa27145 | 5764 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
5765 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
5766 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
5767 | * |
5768 | * Fan speed changes of any sort (including those caused by the | |
5769 | * disengaged mode) are usually done slowly by the firmware as the | |
5770 | * maximum ammount of fan duty cycle change per second seems to be | |
5771 | * limited. | |
5772 | * | |
5773 | * Reading is not available if GFAN exists. | |
5774 | * Writing is not available if SFAN exists. | |
5775 | * | |
5776 | * Bits | |
5777 | * 7 automatic mode engaged; | |
5778 | * (default operation mode of the ThinkPad) | |
5779 | * fan level is ignored in this mode. | |
f51d1a39 | 5780 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 5781 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
5782 | * the tachometer while the fan controller ramps up |
5783 | * the speed (which can take up to a few *minutes*). | |
5784 | * Speeds up fan to 100% duty-cycle, which is far above | |
5785 | * the standard RPM levels. It is not impossible that | |
5786 | * it could cause hardware damage. | |
56b6aeb0 HMH |
5787 | * 5-3 unused in some models. Extra bits for fan level |
5788 | * in others, but still useless as all values above | |
5789 | * 7 map to the same speed as level 7 in these models. | |
5790 | * 2-0 fan level (0..7 usually) | |
5791 | * 0x00 = stop | |
5792 | * 0x07 = max (set when temperatures critical) | |
5793 | * Some ThinkPads may have other levels, see | |
efa27145 | 5794 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
5795 | * |
5796 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
5797 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
5798 | * does so, its initial value is meaningless (0x07). | |
5799 | * | |
5800 | * For firmware bugs, refer to: | |
5801 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
5802 | * | |
5803 | * ---- | |
5804 | * | |
5805 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
5806 | * Main fan tachometer reading (in RPM) | |
5807 | * | |
5808 | * This register is present on all ThinkPads with a new-style EC, and | |
5809 | * it is known not to be present on the A21m/e, and T22, as there is | |
5810 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
5811 | * ThinkPads from this same time period (and earlier) probably lack the | |
5812 | * tachometer as well. | |
5813 | * | |
5814 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
5815 | * was never fixed by IBM to report the EC firmware version string | |
5816 | * probably support the tachometer (like the early X models), so | |
5817 | * detecting it is quite hard. We need more data to know for sure. | |
5818 | * | |
5819 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
5820 | * might result. | |
5821 | * | |
f51d1a39 HMH |
5822 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
5823 | * mode. | |
56b6aeb0 HMH |
5824 | * |
5825 | * For firmware bugs, refer to: | |
5826 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
5827 | * | |
efa27145 | 5828 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
5829 | * ThinkPad X31, X40, X41. Not available in the X60. |
5830 | * | |
5831 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
5832 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
5833 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
5834 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
5835 | * | |
5836 | * The speeds are stored on handles | |
5837 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
5838 | * | |
5839 | * There are three default speed sets, acessible as handles: | |
5840 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
5841 | * | |
5842 | * ACPI DSDT switches which set is in use depending on various | |
5843 | * factors. | |
5844 | * | |
efa27145 | 5845 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
5846 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
5847 | * but the ACPI tables just mention level 7. | |
5848 | */ | |
5849 | ||
f74a27d4 HMH |
5850 | enum { /* Fan control constants */ |
5851 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
5852 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
5853 | * 0x84 must be read before 0x85 */ | |
5854 | ||
5855 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
5856 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
5857 | ||
5858 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
5859 | }; | |
5860 | ||
5861 | enum fan_status_access_mode { | |
5862 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
5863 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
5864 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
5865 | }; | |
5866 | ||
5867 | enum fan_control_access_mode { | |
5868 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
5869 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
5870 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
5871 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
5872 | }; | |
5873 | ||
5874 | enum fan_control_commands { | |
5875 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
5876 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
5877 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
5878 | * and also watchdog cmd */ | |
5879 | }; | |
5880 | ||
5881 | static int fan_control_allowed; | |
5882 | ||
69ba91cb HMH |
5883 | static enum fan_status_access_mode fan_status_access_mode; |
5884 | static enum fan_control_access_mode fan_control_access_mode; | |
5885 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 5886 | |
778b4d74 | 5887 | static u8 fan_control_initial_status; |
fe98a52c | 5888 | static u8 fan_control_desired_level; |
0081b162 | 5889 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
5890 | static int fan_watchdog_maxinterval; |
5891 | ||
5892 | static struct mutex fan_mutex; | |
778b4d74 | 5893 | |
25c68a33 | 5894 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 5895 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 5896 | |
e0c7dfe7 HMH |
5897 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
5898 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
5899 | "\\FSPD", /* 600e/x, 770e, 770x */ |
5900 | ); /* all others */ | |
e0c7dfe7 | 5901 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
5902 | "JFNS", /* 770x-JL */ |
5903 | ); /* all others */ | |
5904 | ||
1c2ece75 HMH |
5905 | /* |
5906 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the | |
5907 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could | |
5908 | * be in auto mode (0x80). | |
5909 | * | |
5910 | * This is corrected by any write to HFSP either by the driver, or | |
5911 | * by the firmware. | |
5912 | * | |
5913 | * We assume 0x07 really means auto mode while this quirk is active, | |
5914 | * as this is far more likely than the ThinkPad being in level 7, | |
5915 | * which is only used by the firmware during thermal emergencies. | |
5916 | */ | |
5917 | ||
5918 | static void fan_quirk1_detect(void) | |
5919 | { | |
5920 | /* In some ThinkPads, neither the EC nor the ACPI | |
5921 | * DSDT initialize the HFSP register, and it ends up | |
5922 | * being initially set to 0x07 when it *could* be | |
5923 | * either 0x07 or 0x80. | |
5924 | * | |
5925 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
5926 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
5927 | * to be buggy. */ | |
5928 | if (fan_control_initial_status == 0x07) { | |
5929 | switch (thinkpad_id.ec_model) { | |
5930 | case 0x5931: /* TP-1Y */ | |
5931 | case 0x3837: /* TP-78 */ | |
5932 | case 0x3637: /* TP-76 */ | |
5933 | case 0x3037: /* TP-70 */ | |
5934 | printk(TPACPI_NOTICE | |
5935 | "fan_init: initial fan status is unknown, " | |
5936 | "assuming it is in auto mode\n"); | |
5937 | tp_features.fan_ctrl_status_undef = 1; | |
5938 | ;; | |
5939 | } | |
5940 | } | |
5941 | } | |
5942 | ||
5943 | static void fan_quirk1_handle(u8 *fan_status) | |
5944 | { | |
5945 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
5946 | if (*fan_status != fan_control_initial_status) { | |
5947 | /* something changed the HFSP regisnter since | |
5948 | * driver init time, so it is not undefined | |
5949 | * anymore */ | |
5950 | tp_features.fan_ctrl_status_undef = 0; | |
5951 | } else { | |
5952 | /* Return most likely status. In fact, it | |
5953 | * might be the only possible status */ | |
5954 | *fan_status = TP_EC_FAN_AUTO; | |
5955 | } | |
5956 | } | |
5957 | } | |
5958 | ||
fe98a52c | 5959 | /* |
b21a15f6 | 5960 | * Call with fan_mutex held |
fe98a52c | 5961 | */ |
b21a15f6 | 5962 | static void fan_update_desired_level(u8 status) |
fe98a52c | 5963 | { |
b21a15f6 HMH |
5964 | if ((status & |
5965 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
5966 | if (status > 7) | |
5967 | fan_control_desired_level = 7; | |
5968 | else | |
5969 | fan_control_desired_level = status; | |
5970 | } | |
5971 | } | |
fe98a52c | 5972 | |
b21a15f6 HMH |
5973 | static int fan_get_status(u8 *status) |
5974 | { | |
5975 | u8 s; | |
fe98a52c | 5976 | |
b21a15f6 HMH |
5977 | /* TODO: |
5978 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 5979 | |
b21a15f6 HMH |
5980 | switch (fan_status_access_mode) { |
5981 | case TPACPI_FAN_RD_ACPI_GFAN: | |
5982 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 5983 | |
b21a15f6 HMH |
5984 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
5985 | return -EIO; | |
fe98a52c | 5986 | |
b21a15f6 HMH |
5987 | if (likely(status)) |
5988 | *status = s & 0x07; | |
fe98a52c | 5989 | |
b21a15f6 HMH |
5990 | break; |
5991 | ||
5992 | case TPACPI_FAN_RD_TPEC: | |
5993 | /* all except 570, 600e/x, 770e, 770x */ | |
5994 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
5995 | return -EIO; | |
5996 | ||
1c2ece75 | 5997 | if (likely(status)) { |
b21a15f6 | 5998 | *status = s; |
1c2ece75 HMH |
5999 | fan_quirk1_handle(status); |
6000 | } | |
fe98a52c | 6001 | |
fe98a52c | 6002 | break; |
b21a15f6 | 6003 | |
fe98a52c | 6004 | default: |
b21a15f6 | 6005 | return -ENXIO; |
fe98a52c HMH |
6006 | } |
6007 | ||
b21a15f6 HMH |
6008 | return 0; |
6009 | } | |
fe98a52c | 6010 | |
b21a15f6 HMH |
6011 | static int fan_get_status_safe(u8 *status) |
6012 | { | |
6013 | int rc; | |
6014 | u8 s; | |
fe98a52c | 6015 | |
7646ea88 | 6016 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 HMH |
6017 | return -ERESTARTSYS; |
6018 | rc = fan_get_status(&s); | |
6019 | if (!rc) | |
6020 | fan_update_desired_level(s); | |
6021 | mutex_unlock(&fan_mutex); | |
fe98a52c | 6022 | |
b21a15f6 HMH |
6023 | if (status) |
6024 | *status = s; | |
fe98a52c | 6025 | |
b21a15f6 HMH |
6026 | return rc; |
6027 | } | |
6028 | ||
6029 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 6030 | { |
b21a15f6 | 6031 | u8 hi, lo; |
fe98a52c | 6032 | |
b21a15f6 HMH |
6033 | switch (fan_status_access_mode) { |
6034 | case TPACPI_FAN_RD_TPEC: | |
6035 | /* all except 570, 600e/x, 770e, 770x */ | |
6036 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || | |
6037 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
6038 | return -EIO; | |
fe98a52c | 6039 | |
b21a15f6 HMH |
6040 | if (likely(speed)) |
6041 | *speed = (hi << 8) | lo; | |
fe98a52c | 6042 | |
b21a15f6 | 6043 | break; |
fe98a52c | 6044 | |
b21a15f6 HMH |
6045 | default: |
6046 | return -ENXIO; | |
6047 | } | |
fe98a52c | 6048 | |
b21a15f6 | 6049 | return 0; |
fe98a52c HMH |
6050 | } |
6051 | ||
b21a15f6 | 6052 | static int fan_set_level(int level) |
fe98a52c | 6053 | { |
b21a15f6 HMH |
6054 | if (!fan_control_allowed) |
6055 | return -EPERM; | |
fe98a52c | 6056 | |
b21a15f6 HMH |
6057 | switch (fan_control_access_mode) { |
6058 | case TPACPI_FAN_WR_ACPI_SFAN: | |
6059 | if (level >= 0 && level <= 7) { | |
6060 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
6061 | return -EIO; | |
6062 | } else | |
6063 | return -EINVAL; | |
6064 | break; | |
fe98a52c | 6065 | |
b21a15f6 HMH |
6066 | case TPACPI_FAN_WR_ACPI_FANS: |
6067 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
6068 | if (!(level & TP_EC_FAN_AUTO) && |
6069 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
6070 | ((level < 0) || (level > 7))) |
6071 | return -EINVAL; | |
fe98a52c | 6072 | |
b21a15f6 HMH |
6073 | /* safety net should the EC not support AUTO |
6074 | * or FULLSPEED mode bits and just ignore them */ | |
6075 | if (level & TP_EC_FAN_FULLSPEED) | |
6076 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 6077 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 6078 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 6079 | |
b21a15f6 HMH |
6080 | if (!acpi_ec_write(fan_status_offset, level)) |
6081 | return -EIO; | |
6082 | else | |
6083 | tp_features.fan_ctrl_status_undef = 0; | |
6084 | break; | |
fe98a52c | 6085 | |
b21a15f6 HMH |
6086 | default: |
6087 | return -ENXIO; | |
6088 | } | |
6089 | return 0; | |
fe98a52c HMH |
6090 | } |
6091 | ||
b21a15f6 | 6092 | static int fan_set_level_safe(int level) |
fe98a52c | 6093 | { |
b21a15f6 | 6094 | int rc; |
fe98a52c | 6095 | |
b21a15f6 HMH |
6096 | if (!fan_control_allowed) |
6097 | return -EPERM; | |
fe98a52c | 6098 | |
7646ea88 | 6099 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 6100 | return -ERESTARTSYS; |
fe98a52c | 6101 | |
b21a15f6 HMH |
6102 | if (level == TPACPI_FAN_LAST_LEVEL) |
6103 | level = fan_control_desired_level; | |
fe98a52c | 6104 | |
b21a15f6 HMH |
6105 | rc = fan_set_level(level); |
6106 | if (!rc) | |
6107 | fan_update_desired_level(level); | |
6108 | ||
6109 | mutex_unlock(&fan_mutex); | |
6110 | return rc; | |
fe98a52c HMH |
6111 | } |
6112 | ||
b21a15f6 | 6113 | static int fan_set_enable(void) |
fe98a52c | 6114 | { |
b21a15f6 HMH |
6115 | u8 s; |
6116 | int rc; | |
fe98a52c | 6117 | |
ecf2a80a HMH |
6118 | if (!fan_control_allowed) |
6119 | return -EPERM; | |
6120 | ||
7646ea88 | 6121 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 6122 | return -ERESTARTSYS; |
fe98a52c | 6123 | |
b21a15f6 HMH |
6124 | switch (fan_control_access_mode) { |
6125 | case TPACPI_FAN_WR_ACPI_FANS: | |
6126 | case TPACPI_FAN_WR_TPEC: | |
6127 | rc = fan_get_status(&s); | |
6128 | if (rc < 0) | |
6129 | break; | |
fe98a52c | 6130 | |
b21a15f6 HMH |
6131 | /* Don't go out of emergency fan mode */ |
6132 | if (s != 7) { | |
6133 | s &= 0x07; | |
6134 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
6135 | } | |
fe98a52c | 6136 | |
b21a15f6 HMH |
6137 | if (!acpi_ec_write(fan_status_offset, s)) |
6138 | rc = -EIO; | |
6139 | else { | |
6140 | tp_features.fan_ctrl_status_undef = 0; | |
6141 | rc = 0; | |
6142 | } | |
6143 | break; | |
fe98a52c | 6144 | |
b21a15f6 HMH |
6145 | case TPACPI_FAN_WR_ACPI_SFAN: |
6146 | rc = fan_get_status(&s); | |
6147 | if (rc < 0) | |
6148 | break; | |
fe98a52c | 6149 | |
b21a15f6 | 6150 | s &= 0x07; |
fe98a52c | 6151 | |
b21a15f6 HMH |
6152 | /* Set fan to at least level 4 */ |
6153 | s |= 4; | |
fe08bc4b | 6154 | |
b21a15f6 | 6155 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 6156 | rc = -EIO; |
b21a15f6 HMH |
6157 | else |
6158 | rc = 0; | |
6159 | break; | |
78f81cc4 | 6160 | |
b21a15f6 HMH |
6161 | default: |
6162 | rc = -ENXIO; | |
6163 | } | |
5fba344c | 6164 | |
b21a15f6 HMH |
6165 | mutex_unlock(&fan_mutex); |
6166 | return rc; | |
69ba91cb | 6167 | } |
78f81cc4 | 6168 | |
b21a15f6 | 6169 | static int fan_set_disable(void) |
78f81cc4 | 6170 | { |
b21a15f6 | 6171 | int rc; |
c52f0aa5 | 6172 | |
b21a15f6 HMH |
6173 | if (!fan_control_allowed) |
6174 | return -EPERM; | |
78f81cc4 | 6175 | |
7646ea88 | 6176 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 6177 | return -ERESTARTSYS; |
3ef8a609 | 6178 | |
b21a15f6 HMH |
6179 | rc = 0; |
6180 | switch (fan_control_access_mode) { | |
6181 | case TPACPI_FAN_WR_ACPI_FANS: | |
6182 | case TPACPI_FAN_WR_TPEC: | |
6183 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
6184 | rc = -EIO; | |
6185 | else { | |
6186 | fan_control_desired_level = 0; | |
6187 | tp_features.fan_ctrl_status_undef = 0; | |
6188 | } | |
3ef8a609 HMH |
6189 | break; |
6190 | ||
b21a15f6 HMH |
6191 | case TPACPI_FAN_WR_ACPI_SFAN: |
6192 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
6193 | rc = -EIO; | |
6194 | else | |
6195 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
6196 | break; |
6197 | ||
6198 | default: | |
b21a15f6 | 6199 | rc = -ENXIO; |
78f81cc4 BD |
6200 | } |
6201 | ||
fe98a52c | 6202 | |
fe98a52c | 6203 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
6204 | return rc; |
6205 | } | |
6206 | ||
b21a15f6 | 6207 | static int fan_set_speed(int speed) |
c52f0aa5 | 6208 | { |
b21a15f6 | 6209 | int rc; |
c52f0aa5 | 6210 | |
b21a15f6 HMH |
6211 | if (!fan_control_allowed) |
6212 | return -EPERM; | |
3ef8a609 | 6213 | |
7646ea88 | 6214 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 6215 | return -ERESTARTSYS; |
c52f0aa5 | 6216 | |
b21a15f6 HMH |
6217 | rc = 0; |
6218 | switch (fan_control_access_mode) { | |
6219 | case TPACPI_FAN_WR_ACPI_FANS: | |
6220 | if (speed >= 0 && speed <= 65535) { | |
6221 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
6222 | speed, speed, speed)) | |
6223 | rc = -EIO; | |
6224 | } else | |
6225 | rc = -EINVAL; | |
c52f0aa5 HMH |
6226 | break; |
6227 | ||
6228 | default: | |
b21a15f6 | 6229 | rc = -ENXIO; |
c52f0aa5 HMH |
6230 | } |
6231 | ||
b21a15f6 HMH |
6232 | mutex_unlock(&fan_mutex); |
6233 | return rc; | |
16663a87 HMH |
6234 | } |
6235 | ||
6236 | static void fan_watchdog_reset(void) | |
6237 | { | |
94954cc6 | 6238 | static int fan_watchdog_active; |
16663a87 | 6239 | |
4985cd0a HMH |
6240 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
6241 | return; | |
6242 | ||
16663a87 HMH |
6243 | if (fan_watchdog_active) |
6244 | cancel_delayed_work(&fan_watchdog_task); | |
6245 | ||
8fef502e HMH |
6246 | if (fan_watchdog_maxinterval > 0 && |
6247 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 | 6248 | fan_watchdog_active = 1; |
e0e3c061 | 6249 | if (!queue_delayed_work(tpacpi_wq, &fan_watchdog_task, |
16663a87 HMH |
6250 | msecs_to_jiffies(fan_watchdog_maxinterval |
6251 | * 1000))) { | |
35ff8b9f | 6252 | printk(TPACPI_ERR |
e0e3c061 | 6253 | "failed to queue the fan watchdog, " |
16663a87 HMH |
6254 | "watchdog will not trigger\n"); |
6255 | } | |
6256 | } else | |
6257 | fan_watchdog_active = 0; | |
6258 | } | |
6259 | ||
b21a15f6 | 6260 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 6261 | { |
b21a15f6 | 6262 | int rc; |
18ad7996 | 6263 | |
b21a15f6 HMH |
6264 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
6265 | return; | |
a12095c2 | 6266 | |
e0c7dfe7 | 6267 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
6268 | rc = fan_set_enable(); |
6269 | if (rc < 0) { | |
e0c7dfe7 | 6270 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
6271 | "will try again later...\n", -rc); |
6272 | /* reschedule for later */ | |
6273 | fan_watchdog_reset(); | |
6274 | } | |
6275 | } | |
eaa7571b | 6276 | |
b21a15f6 HMH |
6277 | /* |
6278 | * SYSFS fan layout: hwmon compatible (device) | |
6279 | * | |
6280 | * pwm*_enable: | |
6281 | * 0: "disengaged" mode | |
6282 | * 1: manual mode | |
6283 | * 2: native EC "auto" mode (recommended, hardware default) | |
6284 | * | |
6285 | * pwm*: set speed in manual mode, ignored otherwise. | |
6286 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
6287 | * interpolation. | |
6288 | * | |
6289 | * fan*_input: tachometer reading, RPM | |
6290 | * | |
6291 | * | |
6292 | * SYSFS fan layout: extensions | |
6293 | * | |
6294 | * fan_watchdog (driver): | |
6295 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
6296 | */ | |
6297 | ||
6298 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
6299 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
6300 | struct device_attribute *attr, | |
6301 | char *buf) | |
6302 | { | |
6303 | int res, mode; | |
6304 | u8 status; | |
6305 | ||
6306 | res = fan_get_status_safe(&status); | |
6307 | if (res) | |
6308 | return res; | |
6309 | ||
b21a15f6 HMH |
6310 | if (status & TP_EC_FAN_FULLSPEED) { |
6311 | mode = 0; | |
6312 | } else if (status & TP_EC_FAN_AUTO) { | |
6313 | mode = 2; | |
6314 | } else | |
6315 | mode = 1; | |
6316 | ||
6317 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
6318 | } | |
a12095c2 | 6319 | |
b21a15f6 HMH |
6320 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
6321 | struct device_attribute *attr, | |
6322 | const char *buf, size_t count) | |
6323 | { | |
6324 | unsigned long t; | |
6325 | int res, level; | |
6326 | ||
6327 | if (parse_strtoul(buf, 2, &t)) | |
6328 | return -EINVAL; | |
6329 | ||
6330 | switch (t) { | |
6331 | case 0: | |
6332 | level = TP_EC_FAN_FULLSPEED; | |
6333 | break; | |
6334 | case 1: | |
6335 | level = TPACPI_FAN_LAST_LEVEL; | |
6336 | break; | |
6337 | case 2: | |
6338 | level = TP_EC_FAN_AUTO; | |
6339 | break; | |
6340 | case 3: | |
6341 | /* reserved for software-controlled auto mode */ | |
6342 | return -ENOSYS; | |
18ad7996 | 6343 | default: |
b21a15f6 | 6344 | return -EINVAL; |
18ad7996 | 6345 | } |
b21a15f6 HMH |
6346 | |
6347 | res = fan_set_level_safe(level); | |
6348 | if (res == -ENXIO) | |
6349 | return -EINVAL; | |
6350 | else if (res < 0) | |
6351 | return res; | |
6352 | ||
6353 | fan_watchdog_reset(); | |
6354 | ||
6355 | return count; | |
18ad7996 HMH |
6356 | } |
6357 | ||
b21a15f6 HMH |
6358 | static struct device_attribute dev_attr_fan_pwm1_enable = |
6359 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
6360 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
6361 | ||
6362 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
6363 | static ssize_t fan_pwm1_show(struct device *dev, | |
6364 | struct device_attribute *attr, | |
6365 | char *buf) | |
fe98a52c | 6366 | { |
b21a15f6 HMH |
6367 | int res; |
6368 | u8 status; | |
fe98a52c | 6369 | |
b21a15f6 HMH |
6370 | res = fan_get_status_safe(&status); |
6371 | if (res) | |
6372 | return res; | |
ecf2a80a | 6373 | |
b21a15f6 HMH |
6374 | if ((status & |
6375 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
6376 | status = fan_control_desired_level; | |
fe98a52c | 6377 | |
b21a15f6 HMH |
6378 | if (status > 7) |
6379 | status = 7; | |
fe98a52c | 6380 | |
b21a15f6 | 6381 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
6382 | } |
6383 | ||
b21a15f6 HMH |
6384 | static ssize_t fan_pwm1_store(struct device *dev, |
6385 | struct device_attribute *attr, | |
6386 | const char *buf, size_t count) | |
18ad7996 | 6387 | { |
b21a15f6 | 6388 | unsigned long s; |
1c6a334e | 6389 | int rc; |
b21a15f6 | 6390 | u8 status, newlevel; |
1c6a334e | 6391 | |
b21a15f6 HMH |
6392 | if (parse_strtoul(buf, 255, &s)) |
6393 | return -EINVAL; | |
6394 | ||
6395 | /* scale down from 0-255 to 0-7 */ | |
6396 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 6397 | |
7646ea88 | 6398 | if (mutex_lock_killable(&fan_mutex)) |
fc589a3c | 6399 | return -ERESTARTSYS; |
40ca9fdf | 6400 | |
b21a15f6 HMH |
6401 | rc = fan_get_status(&status); |
6402 | if (!rc && (status & | |
6403 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
6404 | rc = fan_set_level(newlevel); | |
6405 | if (rc == -ENXIO) | |
6406 | rc = -EINVAL; | |
6407 | else if (!rc) { | |
6408 | fan_update_desired_level(newlevel); | |
6409 | fan_watchdog_reset(); | |
eaa7571b | 6410 | } |
b21a15f6 | 6411 | } |
1c6a334e | 6412 | |
b21a15f6 HMH |
6413 | mutex_unlock(&fan_mutex); |
6414 | return (rc)? rc : count; | |
6415 | } | |
1c6a334e | 6416 | |
b21a15f6 HMH |
6417 | static struct device_attribute dev_attr_fan_pwm1 = |
6418 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
6419 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 6420 | |
b21a15f6 HMH |
6421 | /* sysfs fan fan1_input ------------------------------------------------ */ |
6422 | static ssize_t fan_fan1_input_show(struct device *dev, | |
6423 | struct device_attribute *attr, | |
6424 | char *buf) | |
6425 | { | |
6426 | int res; | |
6427 | unsigned int speed; | |
1c6a334e | 6428 | |
b21a15f6 HMH |
6429 | res = fan_get_speed(&speed); |
6430 | if (res < 0) | |
6431 | return res; | |
1c6a334e | 6432 | |
b21a15f6 HMH |
6433 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
6434 | } | |
18ad7996 | 6435 | |
b21a15f6 HMH |
6436 | static struct device_attribute dev_attr_fan_fan1_input = |
6437 | __ATTR(fan1_input, S_IRUGO, | |
6438 | fan_fan1_input_show, NULL); | |
40ca9fdf | 6439 | |
b21a15f6 HMH |
6440 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
6441 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
6442 | char *buf) | |
6443 | { | |
6444 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
6445 | } |
6446 | ||
b21a15f6 HMH |
6447 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
6448 | const char *buf, size_t count) | |
18ad7996 | 6449 | { |
b21a15f6 HMH |
6450 | unsigned long t; |
6451 | ||
6452 | if (parse_strtoul(buf, 120, &t)) | |
6453 | return -EINVAL; | |
40ca9fdf | 6454 | |
ecf2a80a HMH |
6455 | if (!fan_control_allowed) |
6456 | return -EPERM; | |
6457 | ||
b21a15f6 HMH |
6458 | fan_watchdog_maxinterval = t; |
6459 | fan_watchdog_reset(); | |
40ca9fdf | 6460 | |
b21a15f6 HMH |
6461 | return count; |
6462 | } | |
6463 | ||
6464 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
6465 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
6466 | ||
6467 | /* --------------------------------------------------------------------- */ | |
6468 | static struct attribute *fan_attributes[] = { | |
6469 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
6470 | &dev_attr_fan_fan1_input.attr, | |
6471 | NULL | |
6472 | }; | |
6473 | ||
6474 | static const struct attribute_group fan_attr_group = { | |
6475 | .attrs = fan_attributes, | |
6476 | }; | |
6477 | ||
6478 | static int __init fan_init(struct ibm_init_struct *iibm) | |
6479 | { | |
6480 | int rc; | |
6481 | ||
6482 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); | |
6483 | ||
6484 | mutex_init(&fan_mutex); | |
6485 | fan_status_access_mode = TPACPI_FAN_NONE; | |
6486 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
6487 | fan_control_commands = 0; | |
6488 | fan_watchdog_maxinterval = 0; | |
6489 | tp_features.fan_ctrl_status_undef = 0; | |
6490 | fan_control_desired_level = 7; | |
6491 | ||
e0c7dfe7 HMH |
6492 | TPACPI_ACPIHANDLE_INIT(fans); |
6493 | TPACPI_ACPIHANDLE_INIT(gfan); | |
6494 | TPACPI_ACPIHANDLE_INIT(sfan); | |
b21a15f6 HMH |
6495 | |
6496 | if (gfan_handle) { | |
6497 | /* 570, 600e/x, 770e, 770x */ | |
6498 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
6499 | } else { | |
6500 | /* all other ThinkPads: note that even old-style | |
6501 | * ThinkPad ECs supports the fan control register */ | |
6502 | if (likely(acpi_ec_read(fan_status_offset, | |
6503 | &fan_control_initial_status))) { | |
6504 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
1c2ece75 | 6505 | fan_quirk1_detect(); |
b21a15f6 | 6506 | } else { |
e0c7dfe7 | 6507 | printk(TPACPI_ERR |
b21a15f6 HMH |
6508 | "ThinkPad ACPI EC access misbehaving, " |
6509 | "fan status and control unavailable\n"); | |
6510 | return 1; | |
6511 | } | |
6512 | } | |
6513 | ||
6514 | if (sfan_handle) { | |
6515 | /* 570, 770x-JL */ | |
6516 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
6517 | fan_control_commands |= | |
6518 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
6519 | } else { | |
6520 | if (!gfan_handle) { | |
6521 | /* gfan without sfan means no fan control */ | |
6522 | /* all other models implement TP EC 0x2f control */ | |
6523 | ||
6524 | if (fans_handle) { | |
6525 | /* X31, X40, X41 */ | |
6526 | fan_control_access_mode = | |
6527 | TPACPI_FAN_WR_ACPI_FANS; | |
6528 | fan_control_commands |= | |
6529 | TPACPI_FAN_CMD_SPEED | | |
6530 | TPACPI_FAN_CMD_LEVEL | | |
6531 | TPACPI_FAN_CMD_ENABLE; | |
6532 | } else { | |
6533 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
6534 | fan_control_commands |= | |
6535 | TPACPI_FAN_CMD_LEVEL | | |
6536 | TPACPI_FAN_CMD_ENABLE; | |
6537 | } | |
fe98a52c | 6538 | } |
b21a15f6 | 6539 | } |
18ad7996 | 6540 | |
b21a15f6 HMH |
6541 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
6542 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
6543 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
6544 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 6545 | |
b21a15f6 HMH |
6546 | /* fan control master switch */ |
6547 | if (!fan_control_allowed) { | |
6548 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
6549 | fan_control_commands = 0; | |
6550 | dbg_printk(TPACPI_DBG_INIT, | |
6551 | "fan control features disabled by parameter\n"); | |
18ad7996 | 6552 | } |
40ca9fdf | 6553 | |
b21a15f6 HMH |
6554 | /* update fan_control_desired_level */ |
6555 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
6556 | fan_get_status_safe(NULL); | |
fe98a52c | 6557 | |
b21a15f6 HMH |
6558 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
6559 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
6560 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, | |
6561 | &fan_attr_group); | |
b21a15f6 HMH |
6562 | if (rc < 0) |
6563 | return rc; | |
9c0a76e1 HMH |
6564 | |
6565 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
6566 | &driver_attr_fan_watchdog); | |
6567 | if (rc < 0) { | |
6568 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, | |
6569 | &fan_attr_group); | |
6570 | return rc; | |
6571 | } | |
b21a15f6 HMH |
6572 | return 0; |
6573 | } else | |
6574 | return 1; | |
56b6aeb0 HMH |
6575 | } |
6576 | ||
b21a15f6 | 6577 | static void fan_exit(void) |
56b6aeb0 | 6578 | { |
35ff8b9f HMH |
6579 | vdbg_printk(TPACPI_DBG_EXIT, |
6580 | "cancelling any pending fan watchdog tasks\n"); | |
56b6aeb0 | 6581 | |
b21a15f6 HMH |
6582 | /* FIXME: can we really do this unconditionally? */ |
6583 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
35ff8b9f HMH |
6584 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
6585 | &driver_attr_fan_watchdog); | |
40ca9fdf | 6586 | |
b21a15f6 | 6587 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 6588 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
6589 | } |
6590 | ||
75700e53 HMH |
6591 | static void fan_suspend(pm_message_t state) |
6592 | { | |
0081b162 HMH |
6593 | int rc; |
6594 | ||
75700e53 HMH |
6595 | if (!fan_control_allowed) |
6596 | return; | |
6597 | ||
6598 | /* Store fan status in cache */ | |
0081b162 HMH |
6599 | fan_control_resume_level = 0; |
6600 | rc = fan_get_status_safe(&fan_control_resume_level); | |
6601 | if (rc < 0) | |
6602 | printk(TPACPI_NOTICE | |
6603 | "failed to read fan level for later " | |
6604 | "restore during resume: %d\n", rc); | |
6605 | ||
6606 | /* if it is undefined, don't attempt to restore it. | |
6607 | * KEEP THIS LAST */ | |
75700e53 | 6608 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 6609 | fan_control_resume_level = 0; |
75700e53 HMH |
6610 | } |
6611 | ||
6612 | static void fan_resume(void) | |
6613 | { | |
75700e53 HMH |
6614 | u8 current_level = 7; |
6615 | bool do_set = false; | |
0081b162 | 6616 | int rc; |
75700e53 HMH |
6617 | |
6618 | /* DSDT *always* updates status on resume */ | |
6619 | tp_features.fan_ctrl_status_undef = 0; | |
6620 | ||
75700e53 | 6621 | if (!fan_control_allowed || |
0081b162 | 6622 | !fan_control_resume_level || |
75700e53 HMH |
6623 | (fan_get_status_safe(¤t_level) < 0)) |
6624 | return; | |
6625 | ||
6626 | switch (fan_control_access_mode) { | |
6627 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
6628 | /* never decrease fan level */ |
6629 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
6630 | break; |
6631 | case TPACPI_FAN_WR_ACPI_FANS: | |
6632 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
6633 | /* never decrease fan level, scale is: |
6634 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
6635 | * | |
6636 | * We expect the firmware to set either 7 or AUTO, but we | |
6637 | * handle FULLSPEED out of paranoia. | |
6638 | * | |
6639 | * So, we can safely only restore FULLSPEED or 7, anything | |
6640 | * else could slow the fan. Restoring AUTO is useless, at | |
6641 | * best that's exactly what the DSDT already set (it is the | |
6642 | * slower it uses). | |
6643 | * | |
6644 | * Always keep in mind that the DSDT *will* have set the | |
6645 | * fans to what the vendor supposes is the best level. We | |
6646 | * muck with it only to speed the fan up. | |
6647 | */ | |
6648 | if (fan_control_resume_level != 7 && | |
6649 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
6650 | return; | |
6651 | else | |
6652 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
6653 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
6654 | break; |
6655 | default: | |
6656 | return; | |
6657 | } | |
6658 | if (do_set) { | |
6659 | printk(TPACPI_NOTICE | |
6660 | "restoring fan level to 0x%02x\n", | |
0081b162 HMH |
6661 | fan_control_resume_level); |
6662 | rc = fan_set_level_safe(fan_control_resume_level); | |
6663 | if (rc < 0) | |
6664 | printk(TPACPI_NOTICE | |
6665 | "failed to restore fan level: %d\n", rc); | |
75700e53 HMH |
6666 | } |
6667 | } | |
6668 | ||
56b6aeb0 HMH |
6669 | static int fan_read(char *p) |
6670 | { | |
6671 | int len = 0; | |
6672 | int rc; | |
6673 | u8 status; | |
6674 | unsigned int speed = 0; | |
6675 | ||
6676 | switch (fan_status_access_mode) { | |
efa27145 | 6677 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 6678 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
6679 | rc = fan_get_status_safe(&status); |
6680 | if (rc < 0) | |
56b6aeb0 HMH |
6681 | return rc; |
6682 | ||
6683 | len += sprintf(p + len, "status:\t\t%s\n" | |
6684 | "level:\t\t%d\n", | |
6685 | (status != 0) ? "enabled" : "disabled", status); | |
6686 | break; | |
6687 | ||
efa27145 | 6688 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 6689 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
6690 | rc = fan_get_status_safe(&status); |
6691 | if (rc < 0) | |
56b6aeb0 HMH |
6692 | return rc; |
6693 | ||
56b6aeb0 HMH |
6694 | len += sprintf(p + len, "status:\t\t%s\n", |
6695 | (status != 0) ? "enabled" : "disabled"); | |
6696 | ||
35ff8b9f HMH |
6697 | rc = fan_get_speed(&speed); |
6698 | if (rc < 0) | |
56b6aeb0 HMH |
6699 | return rc; |
6700 | ||
6701 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
6702 | ||
efa27145 | 6703 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
6704 | /* Disengaged mode takes precedence */ |
6705 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 6706 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
6707 | len += sprintf(p + len, "level:\t\tauto\n"); |
6708 | else | |
6709 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
6710 | break; | |
6711 | ||
efa27145 | 6712 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
6713 | default: |
6714 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
6715 | } | |
6716 | ||
efa27145 | 6717 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
6718 | len += sprintf(p + len, "commands:\tlevel <level>"); |
6719 | ||
6720 | switch (fan_control_access_mode) { | |
efa27145 | 6721 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
6722 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
6723 | break; | |
6724 | ||
6725 | default: | |
6726 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 6727 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
6728 | break; |
6729 | } | |
6730 | } | |
18ad7996 | 6731 | |
efa27145 | 6732 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 | 6733 | len += sprintf(p + len, "commands:\tenable, disable\n" |
35ff8b9f HMH |
6734 | "commands:\twatchdog <timeout> (<timeout> " |
6735 | "is 0 (off), 1-120 (seconds))\n"); | |
1da177e4 | 6736 | |
efa27145 | 6737 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
6738 | len += sprintf(p + len, "commands:\tspeed <speed>" |
6739 | " (<speed> is 0-65535)\n"); | |
6740 | ||
6741 | return len; | |
78f81cc4 BD |
6742 | } |
6743 | ||
18ad7996 HMH |
6744 | static int fan_write_cmd_level(const char *cmd, int *rc) |
6745 | { | |
6746 | int level; | |
6747 | ||
a12095c2 | 6748 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 6749 | level = TP_EC_FAN_AUTO; |
fe98a52c | 6750 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 6751 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 6752 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 6753 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
6754 | return 0; |
6755 | ||
35ff8b9f HMH |
6756 | *rc = fan_set_level_safe(level); |
6757 | if (*rc == -ENXIO) | |
e0c7dfe7 | 6758 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 HMH |
6759 | "access mode %d", fan_control_access_mode); |
6760 | ||
6761 | return 1; | |
6762 | } | |
6763 | ||
6764 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
6765 | { | |
6766 | if (strlencmp(cmd, "enable") != 0) | |
6767 | return 0; | |
6768 | ||
35ff8b9f HMH |
6769 | *rc = fan_set_enable(); |
6770 | if (*rc == -ENXIO) | |
e0c7dfe7 | 6771 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 HMH |
6772 | "access mode %d", fan_control_access_mode); |
6773 | ||
6774 | return 1; | |
6775 | } | |
6776 | ||
6777 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
6778 | { | |
6779 | if (strlencmp(cmd, "disable") != 0) | |
6780 | return 0; | |
6781 | ||
35ff8b9f HMH |
6782 | *rc = fan_set_disable(); |
6783 | if (*rc == -ENXIO) | |
e0c7dfe7 | 6784 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 HMH |
6785 | "access mode %d", fan_control_access_mode); |
6786 | ||
6787 | return 1; | |
6788 | } | |
6789 | ||
6790 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
6791 | { | |
6792 | int speed; | |
6793 | ||
a8b7a662 HMH |
6794 | /* TODO: |
6795 | * Support speed <low> <medium> <high> ? */ | |
6796 | ||
18ad7996 HMH |
6797 | if (sscanf(cmd, "speed %d", &speed) != 1) |
6798 | return 0; | |
6799 | ||
35ff8b9f HMH |
6800 | *rc = fan_set_speed(speed); |
6801 | if (*rc == -ENXIO) | |
e0c7dfe7 | 6802 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 HMH |
6803 | "access mode %d", fan_control_access_mode); |
6804 | ||
6805 | return 1; | |
6806 | } | |
6807 | ||
16663a87 HMH |
6808 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
6809 | { | |
6810 | int interval; | |
6811 | ||
6812 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
6813 | return 0; | |
6814 | ||
6815 | if (interval < 0 || interval > 120) | |
6816 | *rc = -EINVAL; | |
6817 | else | |
6818 | fan_watchdog_maxinterval = interval; | |
6819 | ||
6820 | return 1; | |
6821 | } | |
6822 | ||
18ad7996 HMH |
6823 | static int fan_write(char *buf) |
6824 | { | |
6825 | char *cmd; | |
6826 | int rc = 0; | |
6827 | ||
6828 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 6829 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 6830 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 6831 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 6832 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
6833 | fan_write_cmd_disable(cmd, &rc) || |
6834 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 6835 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
6836 | fan_write_cmd_speed(cmd, &rc)) |
6837 | ) | |
6838 | rc = -EINVAL; | |
16663a87 HMH |
6839 | else if (!rc) |
6840 | fan_watchdog_reset(); | |
18ad7996 HMH |
6841 | } |
6842 | ||
6843 | return rc; | |
6844 | } | |
6845 | ||
a5763f22 HMH |
6846 | static struct ibm_struct fan_driver_data = { |
6847 | .name = "fan", | |
6848 | .read = fan_read, | |
6849 | .write = fan_write, | |
6850 | .exit = fan_exit, | |
75700e53 HMH |
6851 | .suspend = fan_suspend, |
6852 | .resume = fan_resume, | |
a5763f22 HMH |
6853 | }; |
6854 | ||
56b6aeb0 HMH |
6855 | /**************************************************************************** |
6856 | **************************************************************************** | |
6857 | * | |
6858 | * Infrastructure | |
6859 | * | |
6860 | **************************************************************************** | |
6861 | ****************************************************************************/ | |
6862 | ||
7fd40029 HMH |
6863 | /* sysfs name ---------------------------------------------------------- */ |
6864 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
6865 | struct device_attribute *attr, | |
6866 | char *buf) | |
6867 | { | |
e0c7dfe7 | 6868 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
6869 | } |
6870 | ||
6871 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
6872 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
6873 | ||
6874 | /* --------------------------------------------------------------------- */ | |
6875 | ||
56b6aeb0 | 6876 | /* /proc support */ |
94954cc6 | 6877 | static struct proc_dir_entry *proc_dir; |
16663a87 | 6878 | |
56b6aeb0 HMH |
6879 | /* |
6880 | * Module and infrastructure proble, init and exit handling | |
6881 | */ | |
1da177e4 | 6882 | |
b21a15f6 HMH |
6883 | static int force_load; |
6884 | ||
fe08bc4b | 6885 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 6886 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 6887 | { |
a5763f22 | 6888 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 6889 | |
a5763f22 | 6890 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
6891 | } |
6892 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
6893 | ||
b21a15f6 HMH |
6894 | static void ibm_exit(struct ibm_struct *ibm) |
6895 | { | |
6896 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
6897 | ||
6898 | list_del_init(&ibm->all_drivers); | |
6899 | ||
6900 | if (ibm->flags.acpi_notify_installed) { | |
6901 | dbg_printk(TPACPI_DBG_EXIT, | |
6902 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
6903 | BUG_ON(!ibm->acpi); | |
6904 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
6905 | ibm->acpi->type, | |
6906 | dispatch_acpi_notify); | |
6907 | ibm->flags.acpi_notify_installed = 0; | |
6908 | ibm->flags.acpi_notify_installed = 0; | |
6909 | } | |
6910 | ||
6911 | if (ibm->flags.proc_created) { | |
6912 | dbg_printk(TPACPI_DBG_EXIT, | |
6913 | "%s: remove_proc_entry\n", ibm->name); | |
6914 | remove_proc_entry(ibm->name, proc_dir); | |
6915 | ibm->flags.proc_created = 0; | |
6916 | } | |
6917 | ||
6918 | if (ibm->flags.acpi_driver_registered) { | |
6919 | dbg_printk(TPACPI_DBG_EXIT, | |
6920 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
6921 | BUG_ON(!ibm->acpi); | |
6922 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
6923 | kfree(ibm->acpi->driver); | |
6924 | ibm->acpi->driver = NULL; | |
6925 | ibm->flags.acpi_driver_registered = 0; | |
6926 | } | |
6927 | ||
6928 | if (ibm->flags.init_called && ibm->exit) { | |
6929 | ibm->exit(); | |
6930 | ibm->flags.init_called = 0; | |
6931 | } | |
6932 | ||
6933 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
6934 | } | |
f74a27d4 | 6935 | |
a5763f22 | 6936 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
6937 | { |
6938 | int ret; | |
a5763f22 | 6939 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
6940 | struct proc_dir_entry *entry; |
6941 | ||
a5763f22 HMH |
6942 | BUG_ON(ibm == NULL); |
6943 | ||
6944 | INIT_LIST_HEAD(&ibm->all_drivers); | |
6945 | ||
92641177 | 6946 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
6947 | return 0; |
6948 | ||
fe08bc4b HMH |
6949 | dbg_printk(TPACPI_DBG_INIT, |
6950 | "probing for %s\n", ibm->name); | |
6951 | ||
a5763f22 HMH |
6952 | if (iibm->init) { |
6953 | ret = iibm->init(iibm); | |
5fba344c HMH |
6954 | if (ret > 0) |
6955 | return 0; /* probe failed */ | |
6956 | if (ret) | |
1da177e4 | 6957 | return ret; |
a5763f22 | 6958 | |
92641177 | 6959 | ibm->flags.init_called = 1; |
1da177e4 LT |
6960 | } |
6961 | ||
8d376cd6 HMH |
6962 | if (ibm->acpi) { |
6963 | if (ibm->acpi->hid) { | |
6964 | ret = register_tpacpi_subdriver(ibm); | |
6965 | if (ret) | |
6966 | goto err_out; | |
6967 | } | |
5fba344c | 6968 | |
8d376cd6 HMH |
6969 | if (ibm->acpi->notify) { |
6970 | ret = setup_acpi_notify(ibm); | |
6971 | if (ret == -ENODEV) { | |
e0c7dfe7 | 6972 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
6973 | ibm->name); |
6974 | ret = 0; | |
6975 | goto err_out; | |
6976 | } | |
6977 | if (ret < 0) | |
6978 | goto err_out; | |
5fba344c | 6979 | } |
5fba344c HMH |
6980 | } |
6981 | ||
fe08bc4b HMH |
6982 | dbg_printk(TPACPI_DBG_INIT, |
6983 | "%s installed\n", ibm->name); | |
6984 | ||
78f81cc4 BD |
6985 | if (ibm->read) { |
6986 | entry = create_proc_entry(ibm->name, | |
6987 | S_IFREG | S_IRUGO | S_IWUSR, | |
6988 | proc_dir); | |
6989 | if (!entry) { | |
e0c7dfe7 | 6990 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 6991 | ibm->name); |
5fba344c HMH |
6992 | ret = -ENODEV; |
6993 | goto err_out; | |
78f81cc4 BD |
6994 | } |
6995 | entry->owner = THIS_MODULE; | |
6996 | entry->data = ibm; | |
8d376cd6 | 6997 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 6998 | if (ibm->write) |
8d376cd6 | 6999 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 7000 | ibm->flags.proc_created = 1; |
78f81cc4 | 7001 | } |
1da177e4 | 7002 | |
a5763f22 HMH |
7003 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
7004 | ||
1da177e4 | 7005 | return 0; |
5fba344c HMH |
7006 | |
7007 | err_out: | |
fe08bc4b HMH |
7008 | dbg_printk(TPACPI_DBG_INIT, |
7009 | "%s: at error exit path with result %d\n", | |
7010 | ibm->name, ret); | |
7011 | ||
5fba344c HMH |
7012 | ibm_exit(ibm); |
7013 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
7014 | } |
7015 | ||
56b6aeb0 HMH |
7016 | /* Probing */ |
7017 | ||
bf20e740 HMH |
7018 | /* returns 0 - probe ok, or < 0 - probe error. |
7019 | * Probe ok doesn't mean thinkpad found. | |
7020 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
7021 | static int __must_check __init get_thinkpad_model_data( | |
7022 | struct thinkpad_id_data *tp) | |
1da177e4 | 7023 | { |
1855256c | 7024 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 7025 | char ec_fw_string[18]; |
bf20e740 | 7026 | char const *s; |
1da177e4 | 7027 | |
d5a2f2f1 | 7028 | if (!tp) |
bf20e740 | 7029 | return -EINVAL; |
d5a2f2f1 HMH |
7030 | |
7031 | memset(tp, 0, sizeof(*tp)); | |
7032 | ||
7033 | if (dmi_name_in_vendors("IBM")) | |
7034 | tp->vendor = PCI_VENDOR_ID_IBM; | |
7035 | else if (dmi_name_in_vendors("LENOVO")) | |
7036 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
7037 | else | |
bf20e740 | 7038 | return 0; |
d5a2f2f1 | 7039 | |
bf20e740 HMH |
7040 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
7041 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
7042 | if (s && !tp->bios_version_str) | |
7043 | return -ENOMEM; | |
d5a2f2f1 | 7044 | if (!tp->bios_version_str) |
bf20e740 | 7045 | return 0; |
d5a2f2f1 HMH |
7046 | tp->bios_model = tp->bios_version_str[0] |
7047 | | (tp->bios_version_str[1] << 8); | |
7048 | ||
56b6aeb0 HMH |
7049 | /* |
7050 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
7051 | * X32 or newer, all Z series; Some models must have an | |
7052 | * up-to-date BIOS or they will not be detected. | |
7053 | * | |
7054 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
7055 | */ | |
7056 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
7057 | if (sscanf(dev->name, | |
7058 | "IBM ThinkPad Embedded Controller -[%17c", | |
7059 | ec_fw_string) == 1) { | |
7060 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
7061 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
7062 | |
7063 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
bf20e740 HMH |
7064 | if (!tp->ec_version_str) |
7065 | return -ENOMEM; | |
d5a2f2f1 HMH |
7066 | tp->ec_model = ec_fw_string[0] |
7067 | | (ec_fw_string[1] << 8); | |
7068 | break; | |
78f81cc4 | 7069 | } |
1da177e4 | 7070 | } |
d5a2f2f1 | 7071 | |
bf20e740 HMH |
7072 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
7073 | if (s && !strnicmp(s, "ThinkPad", 8)) { | |
7074 | tp->model_str = kstrdup(s, GFP_KERNEL); | |
7075 | if (!tp->model_str) | |
7076 | return -ENOMEM; | |
d5a2f2f1 | 7077 | } |
8c74adbc | 7078 | |
bf20e740 HMH |
7079 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
7080 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
7081 | if (s && !tp->nummodel_str) | |
7082 | return -ENOMEM; | |
7083 | ||
7084 | return 0; | |
1da177e4 LT |
7085 | } |
7086 | ||
5fba344c HMH |
7087 | static int __init probe_for_thinkpad(void) |
7088 | { | |
7089 | int is_thinkpad; | |
7090 | ||
7091 | if (acpi_disabled) | |
7092 | return -ENODEV; | |
7093 | ||
7094 | /* | |
7095 | * Non-ancient models have better DMI tagging, but very old models | |
7096 | * don't. | |
7097 | */ | |
d5a2f2f1 | 7098 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
7099 | |
7100 | /* ec is required because many other handles are relative to it */ | |
e0c7dfe7 | 7101 | TPACPI_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
7102 | if (!ec_handle) { |
7103 | if (is_thinkpad) | |
e0c7dfe7 | 7104 | printk(TPACPI_ERR |
5fba344c HMH |
7105 | "Not yet supported ThinkPad detected!\n"); |
7106 | return -ENODEV; | |
7107 | } | |
7108 | ||
0dcef77c HMH |
7109 | /* |
7110 | * Risks a regression on very old machines, but reduces potential | |
7111 | * false positives a damn great deal | |
7112 | */ | |
7113 | if (!is_thinkpad) | |
d5a2f2f1 | 7114 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
7115 | |
7116 | if (!is_thinkpad && !force_load) | |
7117 | return -ENODEV; | |
7118 | ||
5fba344c HMH |
7119 | return 0; |
7120 | } | |
7121 | ||
7122 | ||
56b6aeb0 | 7123 | /* Module init, exit, parameters */ |
1da177e4 | 7124 | |
a5763f22 HMH |
7125 | static struct ibm_init_struct ibms_init[] __initdata = { |
7126 | { | |
7127 | .init = thinkpad_acpi_driver_init, | |
7128 | .data = &thinkpad_acpi_driver_data, | |
7129 | }, | |
7130 | { | |
7131 | .init = hotkey_init, | |
7132 | .data = &hotkey_driver_data, | |
7133 | }, | |
7134 | { | |
7135 | .init = bluetooth_init, | |
7136 | .data = &bluetooth_driver_data, | |
7137 | }, | |
7138 | { | |
7139 | .init = wan_init, | |
7140 | .data = &wan_driver_data, | |
7141 | }, | |
0045c0aa HMH |
7142 | { |
7143 | .init = uwb_init, | |
7144 | .data = &uwb_driver_data, | |
7145 | }, | |
d7c1d17d | 7146 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
7147 | { |
7148 | .init = video_init, | |
7149 | .data = &video_driver_data, | |
7150 | }, | |
d7c1d17d | 7151 | #endif |
a5763f22 HMH |
7152 | { |
7153 | .init = light_init, | |
7154 | .data = &light_driver_data, | |
7155 | }, | |
7156 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
7157 | { | |
7158 | .init = dock_init, | |
7159 | .data = &dock_driver_data[0], | |
7160 | }, | |
7161 | { | |
d94a7f16 | 7162 | .init = dock_init2, |
a5763f22 HMH |
7163 | .data = &dock_driver_data[1], |
7164 | }, | |
7165 | #endif | |
7166 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
7167 | { | |
7168 | .init = bay_init, | |
7169 | .data = &bay_driver_data, | |
7170 | }, | |
7171 | #endif | |
7172 | { | |
7173 | .init = cmos_init, | |
7174 | .data = &cmos_driver_data, | |
7175 | }, | |
7176 | { | |
7177 | .init = led_init, | |
7178 | .data = &led_driver_data, | |
7179 | }, | |
7180 | { | |
7181 | .init = beep_init, | |
7182 | .data = &beep_driver_data, | |
7183 | }, | |
7184 | { | |
7185 | .init = thermal_init, | |
7186 | .data = &thermal_driver_data, | |
7187 | }, | |
7188 | { | |
7189 | .data = &ecdump_driver_data, | |
7190 | }, | |
7191 | { | |
7192 | .init = brightness_init, | |
7193 | .data = &brightness_driver_data, | |
7194 | }, | |
7195 | { | |
7196 | .data = &volume_driver_data, | |
7197 | }, | |
7198 | { | |
7199 | .init = fan_init, | |
7200 | .data = &fan_driver_data, | |
7201 | }, | |
7202 | }; | |
7203 | ||
3945ac36 | 7204 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
7205 | { |
7206 | unsigned int i; | |
a5763f22 | 7207 | struct ibm_struct *ibm; |
1da177e4 | 7208 | |
59f91ff1 HMH |
7209 | if (!kp || !kp->name || !val) |
7210 | return -EINVAL; | |
7211 | ||
a5763f22 HMH |
7212 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
7213 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
7214 | WARN_ON(ibm == NULL); |
7215 | ||
7216 | if (!ibm || !ibm->name) | |
7217 | continue; | |
a5763f22 HMH |
7218 | |
7219 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
7220 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 7221 | return -ENOSPC; |
a5763f22 HMH |
7222 | strcpy(ibms_init[i].param, val); |
7223 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
7224 | return 0; |
7225 | } | |
a5763f22 | 7226 | } |
1da177e4 | 7227 | |
1da177e4 LT |
7228 | return -EINVAL; |
7229 | } | |
7230 | ||
56b6aeb0 | 7231 | module_param(experimental, int, 0); |
f68080f8 | 7232 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 7233 | "Enables experimental features when non-zero"); |
56b6aeb0 | 7234 | |
132ce091 | 7235 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 7236 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 7237 | |
86cc9445 | 7238 | module_param(force_load, bool, 0); |
f68080f8 | 7239 | MODULE_PARM_DESC(force_load, |
35ff8b9f HMH |
7240 | "Attempts to load the driver even on a " |
7241 | "mis-identified ThinkPad when true"); | |
0dcef77c | 7242 | |
86cc9445 | 7243 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
f68080f8 | 7244 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 7245 | "Enables setting fan parameters features when true"); |
ecf2a80a | 7246 | |
24d3b774 | 7247 | module_param_named(brightness_mode, brightness_mode, int, 0); |
f68080f8 | 7248 | MODULE_PARM_DESC(brightness_mode, |
35ff8b9f HMH |
7249 | "Selects brightness control strategy: " |
7250 | "0=auto, 1=EC, 2=CMOS, 3=both"); | |
24d3b774 | 7251 | |
87cc537a | 7252 | module_param(brightness_enable, uint, 0); |
f68080f8 | 7253 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 7254 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 7255 | |
ff80f137 | 7256 | module_param(hotkey_report_mode, uint, 0); |
f68080f8 | 7257 | MODULE_PARM_DESC(hotkey_report_mode, |
35ff8b9f HMH |
7258 | "used for backwards compatibility with userspace, " |
7259 | "see documentation"); | |
ff80f137 | 7260 | |
e0c7dfe7 | 7261 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 7262 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
cbb14842 | 7263 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
35ff8b9f | 7264 | "at module load, see documentation") |
1da177e4 | 7265 | |
e0c7dfe7 HMH |
7266 | TPACPI_PARAM(hotkey); |
7267 | TPACPI_PARAM(bluetooth); | |
7268 | TPACPI_PARAM(video); | |
7269 | TPACPI_PARAM(light); | |
85998248 | 7270 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
e0c7dfe7 | 7271 | TPACPI_PARAM(dock); |
63e5f248 | 7272 | #endif |
85998248 | 7273 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
e0c7dfe7 | 7274 | TPACPI_PARAM(bay); |
85998248 | 7275 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
e0c7dfe7 HMH |
7276 | TPACPI_PARAM(cmos); |
7277 | TPACPI_PARAM(led); | |
7278 | TPACPI_PARAM(beep); | |
7279 | TPACPI_PARAM(ecdump); | |
7280 | TPACPI_PARAM(brightness); | |
7281 | TPACPI_PARAM(volume); | |
7282 | TPACPI_PARAM(fan); | |
78f81cc4 | 7283 | |
a73f3091 HMH |
7284 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
7285 | module_param(dbg_wlswemul, uint, 0); | |
7286 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); | |
7287 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
7288 | MODULE_PARM_DESC(wlsw_state, | |
7289 | "Initial state of the emulated WLSW switch"); | |
7290 | ||
7291 | module_param(dbg_bluetoothemul, uint, 0); | |
7292 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); | |
7293 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
7294 | MODULE_PARM_DESC(bluetooth_state, | |
7295 | "Initial state of the emulated bluetooth switch"); | |
7296 | ||
7297 | module_param(dbg_wwanemul, uint, 0); | |
7298 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); | |
7299 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
7300 | MODULE_PARM_DESC(wwan_state, | |
7301 | "Initial state of the emulated WWAN switch"); | |
0045c0aa HMH |
7302 | |
7303 | module_param(dbg_uwbemul, uint, 0); | |
7304 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); | |
7305 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); | |
7306 | MODULE_PARM_DESC(uwb_state, | |
7307 | "Initial state of the emulated UWB switch"); | |
a73f3091 HMH |
7308 | #endif |
7309 | ||
b21a15f6 HMH |
7310 | static void thinkpad_acpi_module_exit(void) |
7311 | { | |
7312 | struct ibm_struct *ibm, *itmp; | |
7313 | ||
7314 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
7315 | ||
7316 | list_for_each_entry_safe_reverse(ibm, itmp, | |
7317 | &tpacpi_all_drivers, | |
7318 | all_drivers) { | |
7319 | ibm_exit(ibm); | |
7320 | } | |
7321 | ||
7322 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
7323 | ||
7324 | if (tpacpi_inputdev) { | |
7325 | if (tp_features.input_device_registered) | |
7326 | input_unregister_device(tpacpi_inputdev); | |
7327 | else | |
7328 | input_free_device(tpacpi_inputdev); | |
7329 | } | |
7330 | ||
7331 | if (tpacpi_hwmon) | |
7332 | hwmon_device_unregister(tpacpi_hwmon); | |
7333 | ||
7334 | if (tp_features.sensors_pdev_attrs_registered) | |
7335 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
7336 | &dev_attr_thinkpad_acpi_pdev_name); | |
7337 | if (tpacpi_sensors_pdev) | |
7338 | platform_device_unregister(tpacpi_sensors_pdev); | |
7339 | if (tpacpi_pdev) | |
7340 | platform_device_unregister(tpacpi_pdev); | |
7341 | ||
7342 | if (tp_features.sensors_pdrv_attrs_registered) | |
7343 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
7344 | if (tp_features.platform_drv_attrs_registered) | |
7345 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
7346 | ||
7347 | if (tp_features.sensors_pdrv_registered) | |
7348 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
7349 | ||
7350 | if (tp_features.platform_drv_registered) | |
7351 | platform_driver_unregister(&tpacpi_pdriver); | |
7352 | ||
7353 | if (proc_dir) | |
e0c7dfe7 | 7354 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 7355 | |
e0e3c061 HMH |
7356 | if (tpacpi_wq) |
7357 | destroy_workqueue(tpacpi_wq); | |
7358 | ||
b21a15f6 HMH |
7359 | kfree(thinkpad_id.bios_version_str); |
7360 | kfree(thinkpad_id.ec_version_str); | |
7361 | kfree(thinkpad_id.model_str); | |
7362 | } | |
7363 | ||
f74a27d4 | 7364 | |
1def7115 | 7365 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
7366 | { |
7367 | int ret, i; | |
7368 | ||
8fef502e HMH |
7369 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
7370 | ||
ff80f137 HMH |
7371 | /* Parameter checking */ |
7372 | if (hotkey_report_mode > 2) | |
7373 | return -EINVAL; | |
7374 | ||
54ae1501 | 7375 | /* Driver-level probe */ |
d5a2f2f1 | 7376 | |
bf20e740 HMH |
7377 | ret = get_thinkpad_model_data(&thinkpad_id); |
7378 | if (ret) { | |
7379 | printk(TPACPI_ERR | |
7380 | "unable to get DMI data: %d\n", ret); | |
7381 | thinkpad_acpi_module_exit(); | |
7382 | return ret; | |
7383 | } | |
5fba344c | 7384 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
7385 | if (ret) { |
7386 | thinkpad_acpi_module_exit(); | |
5fba344c | 7387 | return ret; |
d5a2f2f1 | 7388 | } |
1da177e4 | 7389 | |
54ae1501 | 7390 | /* Driver initialization */ |
d5a2f2f1 | 7391 | |
e0c7dfe7 HMH |
7392 | TPACPI_ACPIHANDLE_INIT(ecrd); |
7393 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 7394 | |
e0e3c061 HMH |
7395 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
7396 | if (!tpacpi_wq) { | |
7397 | thinkpad_acpi_module_exit(); | |
7398 | return -ENOMEM; | |
7399 | } | |
7400 | ||
e0c7dfe7 | 7401 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 7402 | if (!proc_dir) { |
35ff8b9f HMH |
7403 | printk(TPACPI_ERR |
7404 | "unable to create proc dir " TPACPI_PROC_DIR); | |
1def7115 | 7405 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
7406 | return -ENODEV; |
7407 | } | |
7408 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 7409 | |
54ae1501 HMH |
7410 | ret = platform_driver_register(&tpacpi_pdriver); |
7411 | if (ret) { | |
35ff8b9f HMH |
7412 | printk(TPACPI_ERR |
7413 | "unable to register main platform driver\n"); | |
54ae1501 HMH |
7414 | thinkpad_acpi_module_exit(); |
7415 | return ret; | |
7416 | } | |
ac36393d HMH |
7417 | tp_features.platform_drv_registered = 1; |
7418 | ||
7fd40029 HMH |
7419 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
7420 | if (ret) { | |
35ff8b9f HMH |
7421 | printk(TPACPI_ERR |
7422 | "unable to register hwmon platform driver\n"); | |
7fd40029 HMH |
7423 | thinkpad_acpi_module_exit(); |
7424 | return ret; | |
7425 | } | |
7426 | tp_features.sensors_pdrv_registered = 1; | |
7427 | ||
176750d6 | 7428 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
7429 | if (!ret) { |
7430 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
7431 | ret = tpacpi_create_driver_attributes( |
7432 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 7433 | } |
176750d6 | 7434 | if (ret) { |
35ff8b9f HMH |
7435 | printk(TPACPI_ERR |
7436 | "unable to create sysfs driver attributes\n"); | |
176750d6 HMH |
7437 | thinkpad_acpi_module_exit(); |
7438 | return ret; | |
7439 | } | |
2369cc94 | 7440 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 7441 | |
54ae1501 HMH |
7442 | |
7443 | /* Device initialization */ | |
e0c7dfe7 | 7444 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
7445 | NULL, 0); |
7446 | if (IS_ERR(tpacpi_pdev)) { | |
7447 | ret = PTR_ERR(tpacpi_pdev); | |
7448 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 7449 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
7450 | thinkpad_acpi_module_exit(); |
7451 | return ret; | |
7452 | } | |
7fd40029 | 7453 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
7454 | TPACPI_HWMON_DRVR_NAME, |
7455 | -1, NULL, 0); | |
7fd40029 HMH |
7456 | if (IS_ERR(tpacpi_sensors_pdev)) { |
7457 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
7458 | tpacpi_sensors_pdev = NULL; | |
35ff8b9f HMH |
7459 | printk(TPACPI_ERR |
7460 | "unable to register hwmon platform device\n"); | |
7fd40029 HMH |
7461 | thinkpad_acpi_module_exit(); |
7462 | return ret; | |
7463 | } | |
7464 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
7465 | &dev_attr_thinkpad_acpi_pdev_name); | |
7466 | if (ret) { | |
e0c7dfe7 | 7467 | printk(TPACPI_ERR |
35ff8b9f | 7468 | "unable to create sysfs hwmon device attributes\n"); |
7fd40029 HMH |
7469 | thinkpad_acpi_module_exit(); |
7470 | return ret; | |
7471 | } | |
7472 | tp_features.sensors_pdev_attrs_registered = 1; | |
7473 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
7474 | if (IS_ERR(tpacpi_hwmon)) { |
7475 | ret = PTR_ERR(tpacpi_hwmon); | |
7476 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 7477 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
7478 | thinkpad_acpi_module_exit(); |
7479 | return ret; | |
7480 | } | |
8523ed6f | 7481 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
7482 | tpacpi_inputdev = input_allocate_device(); |
7483 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 7484 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
7485 | thinkpad_acpi_module_exit(); |
7486 | return -ENOMEM; | |
7487 | } else { | |
7488 | /* Prepare input device, but don't register */ | |
7489 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 7490 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 7491 | tpacpi_inputdev->id.bustype = BUS_HOST; |
edf0e0e5 HMH |
7492 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
7493 | thinkpad_id.vendor : | |
7494 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
7495 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
7496 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
7497 | } | |
a5763f22 HMH |
7498 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
7499 | ret = ibm_init(&ibms_init[i]); | |
7500 | if (ret >= 0 && *ibms_init[i].param) | |
7501 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 7502 | if (ret < 0) { |
1def7115 | 7503 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
7504 | return ret; |
7505 | } | |
7506 | } | |
7f5d1cd6 HMH |
7507 | ret = input_register_device(tpacpi_inputdev); |
7508 | if (ret < 0) { | |
e0c7dfe7 | 7509 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
7510 | thinkpad_acpi_module_exit(); |
7511 | return ret; | |
7512 | } else { | |
7513 | tp_features.input_device_registered = 1; | |
7514 | } | |
1da177e4 | 7515 | |
8fef502e | 7516 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
7517 | return 0; |
7518 | } | |
7519 | ||
f68080f8 HMH |
7520 | /* Please remove this in year 2009 */ |
7521 | MODULE_ALIAS("ibm_acpi"); | |
7522 | ||
95e57ab2 HMH |
7523 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
7524 | ||
f68080f8 HMH |
7525 | /* |
7526 | * DMI matching for module autoloading | |
7527 | * | |
7528 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
7529 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
7530 | * | |
7531 | * Only models listed in thinkwiki will be supported, so add yours | |
7532 | * if it is not there yet. | |
7533 | */ | |
7534 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
b36a50f9 | 7535 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
f68080f8 HMH |
7536 | |
7537 | /* Non-ancient thinkpads */ | |
7538 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
7539 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
7540 | ||
7541 | /* Ancient thinkpad BIOSes have to be identified by | |
7542 | * BIOS type or model number, and there are far less | |
7543 | * BIOS types than model numbers... */ | |
b36a50f9 MCS |
7544 | IBM_BIOS_MODULE_ALIAS("I[BDHIMNOTWVYZ]"); |
7545 | IBM_BIOS_MODULE_ALIAS("1[0368A-GIKM-PST]"); | |
7546 | IBM_BIOS_MODULE_ALIAS("K[UX-Z]"); | |
f68080f8 HMH |
7547 | |
7548 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); | |
e0c7dfe7 HMH |
7549 | MODULE_DESCRIPTION(TPACPI_DESC); |
7550 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
7551 | MODULE_LICENSE("GPL"); |
7552 | ||
1def7115 HMH |
7553 | module_init(thinkpad_acpi_module_init); |
7554 | module_exit(thinkpad_acpi_module_exit); |