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> |
a62bc916 | 6 | * Copyright (C) 2006-2007 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 | ||
e0c7dfe7 | 24 | #define TPACPI_VERSION "0.18" |
01e88f25 | 25 | #define TPACPI_SYSFS_VERSION 0x020101 |
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> | |
70 | #include <asm/uaccess.h> | |
71 | ||
72 | #include <linux/dmi.h> | |
73 | #include <linux/jiffies.h> | |
74 | #include <linux/workqueue.h> | |
75 | ||
76 | #include <acpi/acpi_drivers.h> | |
77 | #include <acpi/acnamesp.h> | |
78 | ||
79 | #include <linux/pci_ids.h> | |
80 | ||
0c78039f HMH |
81 | |
82 | /* ThinkPad CMOS commands */ | |
83 | #define TP_CMOS_VOLUME_DOWN 0 | |
84 | #define TP_CMOS_VOLUME_UP 1 | |
85 | #define TP_CMOS_VOLUME_MUTE 2 | |
86 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
87 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
88 | ||
89 | /* NVRAM Addresses */ | |
90 | enum tp_nvram_addr { | |
91 | TP_NVRAM_ADDR_HK2 = 0x57, | |
92 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
93 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
94 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
95 | TP_NVRAM_ADDR_MIXER = 0x60, | |
96 | }; | |
97 | ||
98 | /* NVRAM bit masks */ | |
99 | enum { | |
100 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
101 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
102 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
103 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
104 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
105 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
106 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
107 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
108 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
109 | TP_NVRAM_MASK_MUTE = 0x40, | |
110 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
111 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
112 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
113 | }; | |
114 | ||
b21a15f6 | 115 | /* ACPI HIDs */ |
e0c7dfe7 | 116 | #define TPACPI_ACPI_HKEY_HID "IBM0068" |
b21a15f6 HMH |
117 | |
118 | /* Input IDs */ | |
119 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
120 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
121 | ||
122 | ||
123 | /**************************************************************************** | |
124 | * Main driver | |
125 | */ | |
126 | ||
e0c7dfe7 HMH |
127 | #define TPACPI_NAME "thinkpad" |
128 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
129 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
130 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
131 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 132 | |
e0c7dfe7 HMH |
133 | #define TPACPI_PROC_DIR "ibm" |
134 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
135 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
136 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" | |
b21a15f6 | 137 | |
e0c7dfe7 | 138 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 139 | |
0c78039f | 140 | /* Debugging */ |
e0c7dfe7 HMH |
141 | #define TPACPI_LOG TPACPI_FILE ": " |
142 | #define TPACPI_ERR KERN_ERR TPACPI_LOG | |
143 | #define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG | |
144 | #define TPACPI_INFO KERN_INFO TPACPI_LOG | |
145 | #define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG | |
b21a15f6 | 146 | |
0c78039f HMH |
147 | #define TPACPI_DBG_ALL 0xffff |
148 | #define TPACPI_DBG_ALL 0xffff | |
149 | #define TPACPI_DBG_INIT 0x0001 | |
150 | #define TPACPI_DBG_EXIT 0x0002 | |
151 | #define dbg_printk(a_dbg_level, format, arg...) \ | |
152 | do { if (dbg_level & a_dbg_level) \ | |
e0c7dfe7 | 153 | printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); } while (0) |
0c78039f HMH |
154 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
155 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
156 | dbg_printk(a_dbg_level, format, ## arg) | |
157 | static const char *str_supported(int is_supported); | |
158 | #else | |
159 | #define vdbg_printk(a_dbg_level, format, arg...) | |
160 | #endif | |
161 | ||
b21a15f6 HMH |
162 | #define onoff(status,bit) ((status) & (1 << (bit)) ? "on" : "off") |
163 | #define enabled(status,bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
164 | #define strlencmp(a,b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 165 | |
0c78039f HMH |
166 | |
167 | /**************************************************************************** | |
b21a15f6 | 168 | * Driver-wide structs and misc. variables |
0c78039f HMH |
169 | */ |
170 | ||
171 | struct ibm_struct; | |
172 | ||
173 | struct tp_acpi_drv_struct { | |
174 | const struct acpi_device_id *hid; | |
175 | struct acpi_driver *driver; | |
176 | ||
177 | void (*notify) (struct ibm_struct *, u32); | |
178 | acpi_handle *handle; | |
179 | u32 type; | |
180 | struct acpi_device *device; | |
181 | }; | |
182 | ||
183 | struct ibm_struct { | |
184 | char *name; | |
185 | ||
186 | int (*read) (char *); | |
187 | int (*write) (char *); | |
188 | void (*exit) (void); | |
189 | void (*resume) (void); | |
190 | ||
191 | struct list_head all_drivers; | |
192 | ||
193 | struct tp_acpi_drv_struct *acpi; | |
194 | ||
195 | struct { | |
196 | u8 acpi_driver_registered:1; | |
197 | u8 acpi_notify_installed:1; | |
198 | u8 proc_created:1; | |
199 | u8 init_called:1; | |
200 | u8 experimental:1; | |
201 | } flags; | |
202 | }; | |
203 | ||
204 | struct ibm_init_struct { | |
205 | char param[32]; | |
206 | ||
207 | int (*init) (struct ibm_init_struct *); | |
208 | struct ibm_struct *data; | |
209 | }; | |
210 | ||
211 | static struct { | |
212 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
213 | u32 bay_status:1; | |
214 | u32 bay_eject:1; | |
215 | u32 bay_status2:1; | |
216 | u32 bay_eject2:1; | |
217 | #endif | |
218 | u32 bluetooth:1; | |
219 | u32 hotkey:1; | |
220 | u32 hotkey_mask:1; | |
221 | u32 hotkey_wlsw:1; | |
222 | u32 light:1; | |
223 | u32 light_status:1; | |
224 | u32 bright_16levels:1; | |
225 | u32 wan:1; | |
226 | u32 fan_ctrl_status_undef:1; | |
227 | u32 input_device_registered:1; | |
228 | u32 platform_drv_registered:1; | |
229 | u32 platform_drv_attrs_registered:1; | |
230 | u32 sensors_pdrv_registered:1; | |
231 | u32 sensors_pdrv_attrs_registered:1; | |
232 | u32 sensors_pdev_attrs_registered:1; | |
233 | u32 hotkey_poll_active:1; | |
234 | } tp_features; | |
235 | ||
236 | struct thinkpad_id_data { | |
237 | unsigned int vendor; /* ThinkPad vendor: | |
238 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
239 | ||
240 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
241 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
242 | ||
243 | u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ | |
244 | u16 ec_model; | |
245 | ||
246 | char *model_str; | |
247 | }; | |
0c78039f HMH |
248 | static struct thinkpad_id_data thinkpad_id; |
249 | ||
8fef502e HMH |
250 | static enum { |
251 | TPACPI_LIFE_INIT = 0, | |
252 | TPACPI_LIFE_RUNNING, | |
253 | TPACPI_LIFE_EXITING, | |
254 | } tpacpi_lifecycle; | |
255 | ||
b21a15f6 HMH |
256 | static int experimental; |
257 | static u32 dbg_level; | |
258 | ||
56b6aeb0 HMH |
259 | /**************************************************************************** |
260 | **************************************************************************** | |
261 | * | |
262 | * ACPI Helpers and device model | |
263 | * | |
264 | **************************************************************************** | |
265 | ****************************************************************************/ | |
266 | ||
267 | /************************************************************************* | |
268 | * ACPI basic handles | |
269 | */ | |
1da177e4 | 270 | |
94954cc6 | 271 | static acpi_handle root_handle; |
1da177e4 | 272 | |
e0c7dfe7 | 273 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 LT |
274 | static acpi_handle object##_handle; \ |
275 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 276 | static char *object##_path; \ |
1da177e4 LT |
277 | static char *object##_paths[] = { paths } |
278 | ||
e0c7dfe7 | 279 | TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
78f81cc4 BD |
280 | "\\_SB.PCI.ISA.EC", /* 570 */ |
281 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
282 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
283 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
284 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
285 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 286 | ); |
78f81cc4 | 287 | |
e0c7dfe7 HMH |
288 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
289 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 290 | |
e0c7dfe7 | 291 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ |
78f81cc4 BD |
292 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
293 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 294 | ); /* all others */ |
78f81cc4 | 295 | |
e0c7dfe7 | 296 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
297 | "^HKEY", /* R30, R31 */ |
298 | "HKEY", /* all others */ | |
56b6aeb0 | 299 | ); /* 570 */ |
78f81cc4 | 300 | |
78f81cc4 | 301 | |
56b6aeb0 HMH |
302 | /************************************************************************* |
303 | * ACPI helpers | |
a8b7a662 HMH |
304 | */ |
305 | ||
1da177e4 LT |
306 | static int acpi_evalf(acpi_handle handle, |
307 | void *res, char *method, char *fmt, ...) | |
308 | { | |
309 | char *fmt0 = fmt; | |
78f81cc4 | 310 | struct acpi_object_list params; |
e0c7dfe7 | 311 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
312 | struct acpi_buffer result, *resultp; |
313 | union acpi_object out_obj; | |
314 | acpi_status status; | |
315 | va_list ap; | |
316 | char res_type; | |
317 | int success; | |
318 | int quiet; | |
1da177e4 LT |
319 | |
320 | if (!*fmt) { | |
e0c7dfe7 | 321 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
1da177e4 LT |
322 | return 0; |
323 | } | |
324 | ||
325 | if (*fmt == 'q') { | |
326 | quiet = 1; | |
327 | fmt++; | |
328 | } else | |
329 | quiet = 0; | |
330 | ||
331 | res_type = *(fmt++); | |
332 | ||
333 | params.count = 0; | |
334 | params.pointer = &in_objs[0]; | |
335 | ||
336 | va_start(ap, fmt); | |
337 | while (*fmt) { | |
338 | char c = *(fmt++); | |
339 | switch (c) { | |
340 | case 'd': /* int */ | |
341 | in_objs[params.count].integer.value = va_arg(ap, int); | |
342 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
343 | break; | |
78f81cc4 | 344 | /* add more types as needed */ |
1da177e4 | 345 | default: |
e0c7dfe7 | 346 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
347 | "with invalid format character '%c'\n", c); |
348 | return 0; | |
349 | } | |
350 | } | |
351 | va_end(ap); | |
352 | ||
78f81cc4 BD |
353 | if (res_type != 'v') { |
354 | result.length = sizeof(out_obj); | |
355 | result.pointer = &out_obj; | |
356 | resultp = &result; | |
357 | } else | |
358 | resultp = NULL; | |
1da177e4 | 359 | |
78f81cc4 | 360 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
361 | |
362 | switch (res_type) { | |
78f81cc4 | 363 | case 'd': /* int */ |
1da177e4 LT |
364 | if (res) |
365 | *(int *)res = out_obj.integer.value; | |
366 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
367 | break; | |
78f81cc4 | 368 | case 'v': /* void */ |
1da177e4 LT |
369 | success = status == AE_OK; |
370 | break; | |
78f81cc4 | 371 | /* add more types as needed */ |
1da177e4 | 372 | default: |
e0c7dfe7 | 373 | printk(TPACPI_ERR "acpi_evalf() called " |
1da177e4 LT |
374 | "with invalid format character '%c'\n", res_type); |
375 | return 0; | |
376 | } | |
377 | ||
56b6aeb0 | 378 | if (!success && !quiet) |
e0c7dfe7 | 379 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", |
56b6aeb0 HMH |
380 | method, fmt0, status); |
381 | ||
382 | return success; | |
383 | } | |
384 | ||
56b6aeb0 HMH |
385 | static int acpi_ec_read(int i, u8 * p) |
386 | { | |
387 | int v; | |
388 | ||
389 | if (ecrd_handle) { | |
390 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
391 | return 0; | |
392 | *p = v; | |
393 | } else { | |
394 | if (ec_read(i, p) < 0) | |
395 | return 0; | |
396 | } | |
397 | ||
398 | return 1; | |
399 | } | |
400 | ||
401 | static int acpi_ec_write(int i, u8 v) | |
402 | { | |
403 | if (ecwr_handle) { | |
404 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
405 | return 0; | |
406 | } else { | |
407 | if (ec_write(i, v) < 0) | |
408 | return 0; | |
409 | } | |
410 | ||
411 | return 1; | |
412 | } | |
413 | ||
414 | static int _sta(acpi_handle handle) | |
415 | { | |
416 | int status; | |
417 | ||
418 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
419 | status = 0; | |
420 | ||
421 | return status; | |
422 | } | |
423 | ||
c9bea99c HMH |
424 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
425 | { | |
426 | if (!cmos_handle) | |
427 | return -ENXIO; | |
428 | ||
429 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
430 | return -EIO; | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
56b6aeb0 HMH |
435 | /************************************************************************* |
436 | * ACPI device model | |
437 | */ | |
438 | ||
e0c7dfe7 | 439 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
f74a27d4 HMH |
440 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ |
441 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) | |
442 | ||
8d376cd6 | 443 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
444 | acpi_handle *handle, acpi_handle parent, |
445 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
446 | { |
447 | int i; | |
448 | acpi_status status; | |
449 | ||
5ae930e6 HMH |
450 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
451 | name); | |
452 | ||
56b6aeb0 HMH |
453 | for (i = 0; i < num_paths; i++) { |
454 | status = acpi_get_handle(parent, paths[i], handle); | |
455 | if (ACPI_SUCCESS(status)) { | |
456 | *path = paths[i]; | |
5ae930e6 HMH |
457 | dbg_printk(TPACPI_DBG_INIT, |
458 | "Found ACPI handle %s for %s\n", | |
459 | *path, name); | |
56b6aeb0 HMH |
460 | return; |
461 | } | |
462 | } | |
463 | ||
5ae930e6 HMH |
464 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
465 | name); | |
56b6aeb0 HMH |
466 | *handle = NULL; |
467 | } | |
468 | ||
8d376cd6 | 469 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
470 | { |
471 | struct ibm_struct *ibm = data; | |
472 | ||
8fef502e HMH |
473 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
474 | return; | |
475 | ||
8d376cd6 | 476 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
477 | return; |
478 | ||
8d376cd6 | 479 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
480 | } |
481 | ||
8d376cd6 | 482 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
483 | { |
484 | acpi_status status; | |
5ae930e6 | 485 | int rc; |
56b6aeb0 | 486 | |
8d376cd6 HMH |
487 | BUG_ON(!ibm->acpi); |
488 | ||
489 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
490 | return 0; |
491 | ||
5ae930e6 | 492 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
493 | "setting up ACPI notify for %s\n", ibm->name); |
494 | ||
5ae930e6 HMH |
495 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
496 | if (rc < 0) { | |
e0c7dfe7 | 497 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
5ae930e6 | 498 | ibm->name, rc); |
56b6aeb0 HMH |
499 | return -ENODEV; |
500 | } | |
501 | ||
8d376cd6 HMH |
502 | acpi_driver_data(ibm->acpi->device) = ibm; |
503 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
e0c7dfe7 | 504 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 505 | ibm->name); |
56b6aeb0 | 506 | |
8d376cd6 HMH |
507 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
508 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
509 | if (ACPI_FAILURE(status)) { |
510 | if (status == AE_ALREADY_EXISTS) { | |
e0c7dfe7 | 511 | printk(TPACPI_NOTICE "another device driver is already handling %s events\n", |
56b6aeb0 HMH |
512 | ibm->name); |
513 | } else { | |
e0c7dfe7 | 514 | printk(TPACPI_ERR "acpi_install_notify_handler(%s) failed: %d\n", |
56b6aeb0 HMH |
515 | ibm->name, status); |
516 | } | |
517 | return -ENODEV; | |
518 | } | |
8d376cd6 | 519 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
520 | return 0; |
521 | } | |
522 | ||
8d376cd6 | 523 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
524 | { |
525 | return 0; | |
526 | } | |
527 | ||
6700121b | 528 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 529 | { |
5ae930e6 | 530 | int rc; |
56b6aeb0 | 531 | |
fe08bc4b HMH |
532 | dbg_printk(TPACPI_DBG_INIT, |
533 | "registering %s as an ACPI driver\n", ibm->name); | |
534 | ||
8d376cd6 HMH |
535 | BUG_ON(!ibm->acpi); |
536 | ||
537 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
538 | if (!ibm->acpi->driver) { | |
e0c7dfe7 | 539 | printk(TPACPI_ERR "kzalloc(ibm->driver) failed\n"); |
5fba344c | 540 | return -ENOMEM; |
56b6aeb0 HMH |
541 | } |
542 | ||
e0c7dfe7 | 543 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 544 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 545 | |
8d376cd6 | 546 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 547 | |
5ae930e6 HMH |
548 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
549 | if (rc < 0) { | |
e0c7dfe7 | 550 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 551 | ibm->name, rc); |
8d376cd6 HMH |
552 | kfree(ibm->acpi->driver); |
553 | ibm->acpi->driver = NULL; | |
5ae930e6 | 554 | } else if (!rc) |
8d376cd6 | 555 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 556 | |
5ae930e6 | 557 | return rc; |
56b6aeb0 HMH |
558 | } |
559 | ||
560 | ||
561 | /**************************************************************************** | |
562 | **************************************************************************** | |
563 | * | |
564 | * Procfs Helpers | |
565 | * | |
566 | **************************************************************************** | |
567 | ****************************************************************************/ | |
568 | ||
8d376cd6 HMH |
569 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
570 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
571 | { |
572 | struct ibm_struct *ibm = data; | |
573 | int len; | |
574 | ||
575 | if (!ibm || !ibm->read) | |
576 | return -EINVAL; | |
577 | ||
578 | len = ibm->read(page); | |
579 | if (len < 0) | |
580 | return len; | |
581 | ||
582 | if (len <= off + count) | |
583 | *eof = 1; | |
584 | *start = page + off; | |
585 | len -= off; | |
586 | if (len > count) | |
587 | len = count; | |
588 | if (len < 0) | |
589 | len = 0; | |
590 | ||
591 | return len; | |
592 | } | |
593 | ||
8d376cd6 HMH |
594 | static int dispatch_procfs_write(struct file *file, |
595 | const char __user * userbuf, | |
596 | unsigned long count, void *data) | |
56b6aeb0 HMH |
597 | { |
598 | struct ibm_struct *ibm = data; | |
599 | char *kernbuf; | |
600 | int ret; | |
601 | ||
602 | if (!ibm || !ibm->write) | |
603 | return -EINVAL; | |
604 | ||
605 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
606 | if (!kernbuf) | |
607 | return -ENOMEM; | |
1da177e4 | 608 | |
56b6aeb0 HMH |
609 | if (copy_from_user(kernbuf, userbuf, count)) { |
610 | kfree(kernbuf); | |
611 | return -EFAULT; | |
612 | } | |
1da177e4 | 613 | |
56b6aeb0 HMH |
614 | kernbuf[count] = 0; |
615 | strcat(kernbuf, ","); | |
616 | ret = ibm->write(kernbuf); | |
617 | if (ret == 0) | |
618 | ret = count; | |
1da177e4 | 619 | |
56b6aeb0 HMH |
620 | kfree(kernbuf); |
621 | ||
622 | return ret; | |
1da177e4 LT |
623 | } |
624 | ||
625 | static char *next_cmd(char **cmds) | |
626 | { | |
627 | char *start = *cmds; | |
628 | char *end; | |
629 | ||
630 | while ((end = strchr(start, ',')) && end == start) | |
631 | start = end + 1; | |
632 | ||
633 | if (!end) | |
634 | return NULL; | |
635 | ||
636 | *end = 0; | |
637 | *cmds = end + 1; | |
638 | return start; | |
639 | } | |
640 | ||
56b6aeb0 | 641 | |
54ae1501 HMH |
642 | /**************************************************************************** |
643 | **************************************************************************** | |
644 | * | |
7f5d1cd6 | 645 | * Device model: input, hwmon and platform |
54ae1501 HMH |
646 | * |
647 | **************************************************************************** | |
648 | ****************************************************************************/ | |
649 | ||
94954cc6 | 650 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 651 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 652 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 653 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 654 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 655 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 HMH |
656 | |
657 | static int tpacpi_resume_handler(struct platform_device *pdev) | |
658 | { | |
659 | struct ibm_struct *ibm, *itmp; | |
660 | ||
661 | list_for_each_entry_safe(ibm, itmp, | |
662 | &tpacpi_all_drivers, | |
663 | all_drivers) { | |
664 | if (ibm->resume) | |
665 | (ibm->resume)(); | |
666 | } | |
667 | ||
668 | return 0; | |
669 | } | |
670 | ||
54ae1501 HMH |
671 | static struct platform_driver tpacpi_pdriver = { |
672 | .driver = { | |
e0c7dfe7 | 673 | .name = TPACPI_DRVR_NAME, |
54ae1501 HMH |
674 | .owner = THIS_MODULE, |
675 | }, | |
e295e850 | 676 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
677 | }; |
678 | ||
7fd40029 HMH |
679 | static struct platform_driver tpacpi_hwmon_pdriver = { |
680 | .driver = { | |
e0c7dfe7 | 681 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
682 | .owner = THIS_MODULE, |
683 | }, | |
684 | }; | |
54ae1501 | 685 | |
176750d6 | 686 | /************************************************************************* |
b21a15f6 | 687 | * sysfs support helpers |
176750d6 HMH |
688 | */ |
689 | ||
b21a15f6 HMH |
690 | struct attribute_set { |
691 | unsigned int members, max_members; | |
692 | struct attribute_group group; | |
176750d6 HMH |
693 | }; |
694 | ||
7252374a HMH |
695 | struct attribute_set_obj { |
696 | struct attribute_set s; | |
697 | struct attribute *a; | |
698 | } __attribute__((packed)); | |
699 | ||
700 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
701 | const char* name) | |
702 | { | |
703 | struct attribute_set_obj *sobj; | |
704 | ||
705 | if (max_members == 0) | |
706 | return NULL; | |
707 | ||
708 | /* Allocates space for implicit NULL at the end too */ | |
709 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
710 | max_members * sizeof(struct attribute *), | |
711 | GFP_KERNEL); | |
712 | if (!sobj) | |
713 | return NULL; | |
714 | sobj->s.max_members = max_members; | |
715 | sobj->s.group.attrs = &sobj->a; | |
716 | sobj->s.group.name = name; | |
717 | ||
718 | return &sobj->s; | |
719 | } | |
720 | ||
f74a27d4 HMH |
721 | #define destroy_attr_set(_set) \ |
722 | kfree(_set); | |
723 | ||
7252374a HMH |
724 | /* not multi-threaded safe, use it in a single thread per set */ |
725 | static int add_to_attr_set(struct attribute_set* s, struct attribute *attr) | |
726 | { | |
727 | if (!s || !attr) | |
728 | return -EINVAL; | |
729 | ||
730 | if (s->members >= s->max_members) | |
731 | return -ENOMEM; | |
732 | ||
733 | s->group.attrs[s->members] = attr; | |
734 | s->members++; | |
735 | ||
736 | return 0; | |
737 | } | |
738 | ||
739 | static int add_many_to_attr_set(struct attribute_set* s, | |
740 | struct attribute **attr, | |
741 | unsigned int count) | |
742 | { | |
743 | int i, res; | |
744 | ||
745 | for (i = 0; i < count; i++) { | |
746 | res = add_to_attr_set(s, attr[i]); | |
747 | if (res) | |
748 | return res; | |
749 | } | |
750 | ||
751 | return 0; | |
752 | } | |
753 | ||
754 | static void delete_attr_set(struct attribute_set* s, struct kobject *kobj) | |
755 | { | |
756 | sysfs_remove_group(kobj, &s->group); | |
757 | destroy_attr_set(s); | |
758 | } | |
759 | ||
f74a27d4 HMH |
760 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
761 | sysfs_create_group(_kobj, &_attr_set->group) | |
762 | ||
7252374a HMH |
763 | static int parse_strtoul(const char *buf, |
764 | unsigned long max, unsigned long *value) | |
765 | { | |
766 | char *endp; | |
767 | ||
32afbf07 HMH |
768 | while (*buf && isspace(*buf)) |
769 | buf++; | |
7252374a HMH |
770 | *value = simple_strtoul(buf, &endp, 0); |
771 | while (*endp && isspace(*endp)) | |
772 | endp++; | |
773 | if (*endp || *value > max) | |
774 | return -EINVAL; | |
775 | ||
776 | return 0; | |
777 | } | |
778 | ||
56b6aeb0 | 779 | /************************************************************************* |
b21a15f6 | 780 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
781 | */ |
782 | ||
b21a15f6 HMH |
783 | /* interface_version --------------------------------------------------- */ |
784 | static ssize_t tpacpi_driver_interface_version_show( | |
785 | struct device_driver *drv, | |
786 | char *buf) | |
1da177e4 | 787 | { |
b21a15f6 HMH |
788 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
789 | } | |
790 | ||
791 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
792 | tpacpi_driver_interface_version_show, NULL); | |
793 | ||
794 | /* debug_level --------------------------------------------------------- */ | |
795 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
796 | char *buf) | |
797 | { | |
798 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
799 | } | |
800 | ||
801 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
802 | const char *buf, size_t count) | |
803 | { | |
804 | unsigned long t; | |
805 | ||
806 | if (parse_strtoul(buf, 0xffff, &t)) | |
807 | return -EINVAL; | |
808 | ||
809 | dbg_level = t; | |
810 | ||
811 | return count; | |
812 | } | |
813 | ||
814 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
815 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
816 | ||
817 | /* version ------------------------------------------------------------- */ | |
818 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
819 | char *buf) | |
820 | { | |
e0c7dfe7 | 821 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
b21a15f6 HMH |
822 | } |
823 | ||
824 | static DRIVER_ATTR(version, S_IRUGO, | |
825 | tpacpi_driver_version_show, NULL); | |
826 | ||
827 | /* --------------------------------------------------------------------- */ | |
828 | ||
829 | static struct driver_attribute* tpacpi_driver_attributes[] = { | |
830 | &driver_attr_debug_level, &driver_attr_version, | |
831 | &driver_attr_interface_version, | |
832 | }; | |
833 | ||
834 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
835 | { | |
836 | int i, res; | |
837 | ||
838 | i = 0; | |
839 | res = 0; | |
840 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
841 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
842 | i++; | |
843 | } | |
844 | ||
845 | return res; | |
846 | } | |
847 | ||
848 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
849 | { | |
850 | int i; | |
851 | ||
852 | for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) | |
853 | driver_remove_file(drv, tpacpi_driver_attributes[i]); | |
854 | } | |
855 | ||
856 | /**************************************************************************** | |
857 | **************************************************************************** | |
858 | * | |
859 | * Subdrivers | |
860 | * | |
861 | **************************************************************************** | |
862 | ****************************************************************************/ | |
863 | ||
864 | /************************************************************************* | |
865 | * thinkpad-acpi init subdriver | |
866 | */ | |
867 | ||
868 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) | |
869 | { | |
e0c7dfe7 HMH |
870 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
871 | printk(TPACPI_INFO "%s\n", TPACPI_URL); | |
b21a15f6 | 872 | |
e0c7dfe7 | 873 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
b21a15f6 HMH |
874 | (thinkpad_id.bios_version_str) ? |
875 | thinkpad_id.bios_version_str : "unknown", | |
876 | (thinkpad_id.ec_version_str) ? | |
877 | thinkpad_id.ec_version_str : "unknown"); | |
d5a2f2f1 HMH |
878 | |
879 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
e0c7dfe7 | 880 | printk(TPACPI_INFO "%s %s\n", |
d5a2f2f1 HMH |
881 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
882 | "IBM" : ((thinkpad_id.vendor == | |
883 | PCI_VENDOR_ID_LENOVO) ? | |
884 | "Lenovo" : "Unknown vendor"), | |
885 | thinkpad_id.model_str); | |
3945ac36 | 886 | |
1da177e4 LT |
887 | return 0; |
888 | } | |
889 | ||
643f12db | 890 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
891 | { |
892 | int len = 0; | |
893 | ||
e0c7dfe7 HMH |
894 | len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); |
895 | len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); | |
1da177e4 LT |
896 | |
897 | return len; | |
898 | } | |
899 | ||
a5763f22 HMH |
900 | static struct ibm_struct thinkpad_acpi_driver_data = { |
901 | .name = "driver", | |
902 | .read = thinkpad_acpi_driver_read, | |
903 | }; | |
904 | ||
56b6aeb0 HMH |
905 | /************************************************************************* |
906 | * Hotkey subdriver | |
907 | */ | |
908 | ||
f74a27d4 HMH |
909 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
910 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
911 | TP_ACPI_HOTKEYSCAN_FNF2, | |
912 | TP_ACPI_HOTKEYSCAN_FNF3, | |
913 | TP_ACPI_HOTKEYSCAN_FNF4, | |
914 | TP_ACPI_HOTKEYSCAN_FNF5, | |
915 | TP_ACPI_HOTKEYSCAN_FNF6, | |
916 | TP_ACPI_HOTKEYSCAN_FNF7, | |
917 | TP_ACPI_HOTKEYSCAN_FNF8, | |
918 | TP_ACPI_HOTKEYSCAN_FNF9, | |
919 | TP_ACPI_HOTKEYSCAN_FNF10, | |
920 | TP_ACPI_HOTKEYSCAN_FNF11, | |
921 | TP_ACPI_HOTKEYSCAN_FNF12, | |
922 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
923 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
924 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
925 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
926 | TP_ACPI_HOTKEYSCAN_FNEND, | |
927 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
928 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
929 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
930 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
931 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
932 | TP_ACPI_HOTKEYSCAN_MUTE, | |
933 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
934 | }; | |
935 | ||
01e88f25 HMH |
936 | enum { /* Keys available through NVRAM polling */ |
937 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, | |
938 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
939 | }; | |
940 | ||
941 | enum { /* Positions of some of the keys in hotkey masks */ | |
942 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
943 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
944 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
945 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
946 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
947 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
948 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, | |
949 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
950 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
951 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
952 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
953 | }; | |
954 | ||
955 | enum { /* NVRAM to ACPI HKEY group map */ | |
956 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
957 | TP_ACPI_HKEY_ZOOM_MASK | | |
958 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
959 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
960 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
961 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
962 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
963 | TP_ACPI_HKEY_VOLDWN_MASK | | |
964 | TP_ACPI_HKEY_MUTE_MASK, | |
965 | }; | |
966 | ||
967 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
968 | struct tp_nvram_state { | |
969 | u16 thinkpad_toggle:1; | |
970 | u16 zoom_toggle:1; | |
971 | u16 display_toggle:1; | |
972 | u16 thinklight_toggle:1; | |
973 | u16 hibernate_toggle:1; | |
974 | u16 displayexp_toggle:1; | |
975 | u16 display_state:1; | |
976 | u16 brightness_toggle:1; | |
977 | u16 volume_toggle:1; | |
978 | u16 mute:1; | |
979 | ||
980 | u8 brightness_level; | |
981 | u8 volume_level; | |
982 | }; | |
983 | ||
984 | static struct task_struct *tpacpi_hotkey_task; | |
985 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
986 | static int hotkey_poll_freq = 10; /* Hz */ | |
987 | static struct mutex hotkey_thread_mutex; | |
988 | static struct mutex hotkey_thread_data_mutex; | |
989 | static unsigned int hotkey_config_change; | |
990 | ||
991 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
992 | ||
993 | #define hotkey_source_mask 0U | |
994 | ||
995 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
996 | ||
f74a27d4 HMH |
997 | static struct mutex hotkey_mutex; |
998 | ||
78f81cc4 | 999 | static int hotkey_orig_status; |
ae92bd17 | 1000 | static u32 hotkey_orig_mask; |
9b010de5 | 1001 | static u32 hotkey_all_mask; |
6a38abbf | 1002 | static u32 hotkey_reserved_mask; |
b2c985e7 | 1003 | static u32 hotkey_mask; |
6a38abbf | 1004 | |
b21a15f6 HMH |
1005 | static unsigned int hotkey_report_mode; |
1006 | ||
edf0e0e5 | 1007 | static u16 *hotkey_keycode_map; |
78f81cc4 | 1008 | |
94954cc6 | 1009 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 1010 | |
01e88f25 HMH |
1011 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1012 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
1013 | mutex_lock(&hotkey_thread_data_mutex); \ | |
1014 | hotkey_config_change++; | |
1015 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
1016 | mutex_unlock(&hotkey_thread_data_mutex); | |
1017 | #else | |
1018 | #define HOTKEY_CONFIG_CRITICAL_START | |
1019 | #define HOTKEY_CONFIG_CRITICAL_END | |
1020 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1021 | ||
74941a69 HMH |
1022 | static int hotkey_get_wlsw(int *status) |
1023 | { | |
1024 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
1025 | return -EIO; | |
1026 | return 0; | |
1027 | } | |
1028 | ||
b2c985e7 HMH |
1029 | /* |
1030 | * Call with hotkey_mutex held | |
1031 | */ | |
1032 | static int hotkey_mask_get(void) | |
1033 | { | |
01e88f25 HMH |
1034 | u32 m = 0; |
1035 | ||
b2c985e7 | 1036 | if (tp_features.hotkey_mask) { |
01e88f25 | 1037 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 HMH |
1038 | return -EIO; |
1039 | } | |
01e88f25 | 1040 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
b2c985e7 HMH |
1041 | |
1042 | return 0; | |
1043 | } | |
1044 | ||
1045 | /* | |
1046 | * Call with hotkey_mutex held | |
1047 | */ | |
1048 | static int hotkey_mask_set(u32 mask) | |
1049 | { | |
1050 | int i; | |
1051 | int rc = 0; | |
1052 | ||
1053 | if (tp_features.hotkey_mask) { | |
01e88f25 | 1054 | HOTKEY_CONFIG_CRITICAL_START |
b2c985e7 HMH |
1055 | for (i = 0; i < 32; i++) { |
1056 | u32 m = 1 << i; | |
01e88f25 HMH |
1057 | /* enable in firmware mask only keys not in NVRAM |
1058 | * mode, but enable the key in the cached hotkey_mask | |
1059 | * regardless of mode, or the key will end up | |
1060 | * disabled by hotkey_mask_get() */ | |
b2c985e7 HMH |
1061 | if (!acpi_evalf(hkey_handle, |
1062 | NULL, "MHKM", "vdd", i + 1, | |
01e88f25 | 1063 | !!((mask & ~hotkey_source_mask) & m))) { |
b2c985e7 HMH |
1064 | rc = -EIO; |
1065 | break; | |
1066 | } else { | |
1067 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
1068 | } | |
1069 | } | |
01e88f25 | 1070 | HOTKEY_CONFIG_CRITICAL_END |
b2c985e7 HMH |
1071 | |
1072 | /* hotkey_mask_get must be called unconditionally below */ | |
01e88f25 HMH |
1073 | if (!hotkey_mask_get() && !rc && |
1074 | (hotkey_mask & ~hotkey_source_mask) != | |
1075 | (mask & ~hotkey_source_mask)) { | |
e0c7dfe7 | 1076 | printk(TPACPI_NOTICE |
b2c985e7 HMH |
1077 | "requested hot key mask 0x%08x, but " |
1078 | "firmware forced it to 0x%08x\n", | |
1079 | mask, hotkey_mask); | |
1080 | } | |
01e88f25 HMH |
1081 | } else { |
1082 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1083 | HOTKEY_CONFIG_CRITICAL_START | |
1084 | hotkey_mask = mask & hotkey_source_mask; | |
1085 | HOTKEY_CONFIG_CRITICAL_END | |
1086 | hotkey_mask_get(); | |
1087 | if (hotkey_mask != mask) { | |
e0c7dfe7 | 1088 | printk(TPACPI_NOTICE |
01e88f25 HMH |
1089 | "requested hot key mask 0x%08x, " |
1090 | "forced to 0x%08x (NVRAM poll mask is " | |
1091 | "0x%08x): no firmware mask support\n", | |
1092 | mask, hotkey_mask, hotkey_source_mask); | |
1093 | } | |
1094 | #else | |
1095 | hotkey_mask_get(); | |
1096 | rc = -ENXIO; | |
1097 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
b2c985e7 HMH |
1098 | } |
1099 | ||
1100 | return rc; | |
1101 | } | |
1102 | ||
1103 | static int hotkey_status_get(int *status) | |
1104 | { | |
1105 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
1106 | return -EIO; | |
1107 | ||
1108 | return 0; | |
1109 | } | |
1110 | ||
1111 | static int hotkey_status_set(int status) | |
1112 | { | |
1113 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1114 | return -EIO; | |
1115 | ||
1116 | return 0; | |
1117 | } | |
1118 | ||
b7c8c200 HMH |
1119 | static void tpacpi_input_send_radiosw(void) |
1120 | { | |
1121 | int wlsw; | |
1122 | ||
1123 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1124 | ||
1125 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { | |
1126 | input_report_switch(tpacpi_inputdev, | |
1127 | SW_RADIO, !!wlsw); | |
1128 | input_sync(tpacpi_inputdev); | |
1129 | } | |
1130 | ||
1131 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1132 | } | |
1133 | ||
1134 | static void tpacpi_input_send_key(unsigned int scancode) | |
1135 | { | |
1136 | unsigned int keycode; | |
1137 | ||
1138 | keycode = hotkey_keycode_map[scancode]; | |
1139 | ||
1140 | if (keycode != KEY_RESERVED) { | |
1141 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
1142 | ||
1143 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1144 | if (keycode == KEY_UNKNOWN) | |
1145 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1146 | scancode); | |
1147 | input_sync(tpacpi_inputdev); | |
1148 | ||
1149 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1150 | if (keycode == KEY_UNKNOWN) | |
1151 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1152 | scancode); | |
1153 | input_sync(tpacpi_inputdev); | |
1154 | ||
1155 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
1156 | } | |
1157 | } | |
1158 | ||
01e88f25 HMH |
1159 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1160 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
1161 | ||
1162 | static void tpacpi_hotkey_send_key(unsigned int scancode) | |
1163 | { | |
1164 | tpacpi_input_send_key(scancode); | |
1165 | if (hotkey_report_mode < 2) { | |
1166 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, | |
1167 | 0x80, 0x1001 + scancode); | |
1168 | } | |
1169 | } | |
1170 | ||
1171 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) | |
1172 | { | |
1173 | u8 d; | |
1174 | ||
1175 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
1176 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
1177 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
1178 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
1179 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
1180 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
1181 | } | |
1182 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { | |
1183 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); | |
1184 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
1185 | } | |
1186 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
1187 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
1188 | n->displayexp_toggle = | |
1189 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
1190 | } | |
1191 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
1192 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
1193 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
1194 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
1195 | n->brightness_toggle = | |
1196 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
1197 | } | |
1198 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
1199 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
1200 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
1201 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
1202 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
1203 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
1204 | } | |
1205 | } | |
1206 | ||
1207 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
1208 | do { if ((mask & (1 << __scancode)) && oldn->__member != newn->__member) \ | |
1209 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1210 | ||
1211 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
1212 | do { if (mask & (1 << __scancode)) \ | |
1213 | tpacpi_hotkey_send_key(__scancode); } while (0) | |
1214 | ||
1215 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
1216 | struct tp_nvram_state *newn, | |
1217 | u32 mask) | |
1218 | { | |
1219 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); | |
1220 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
1221 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
1222 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
1223 | ||
1224 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
1225 | ||
1226 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
1227 | ||
1228 | /* handle volume */ | |
1229 | if (oldn->volume_toggle != newn->volume_toggle) { | |
1230 | if (oldn->mute != newn->mute) { | |
1231 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1232 | } | |
1233 | if (oldn->volume_level > newn->volume_level) { | |
1234 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1235 | } else if (oldn->volume_level < newn->volume_level) { | |
1236 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1237 | } else if (oldn->mute == newn->mute) { | |
1238 | /* repeated key presses that didn't change state */ | |
1239 | if (newn->mute) { | |
1240 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); | |
1241 | } else if (newn->volume_level != 0) { | |
1242 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
1243 | } else { | |
1244 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
1245 | } | |
1246 | } | |
1247 | } | |
1248 | ||
1249 | /* handle brightness */ | |
1250 | if (oldn->brightness_toggle != newn->brightness_toggle) { | |
1251 | if (oldn->brightness_level < newn->brightness_level) { | |
1252 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1253 | } else if (oldn->brightness_level > newn->brightness_level) { | |
1254 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1255 | } else { | |
1256 | /* repeated key presses that didn't change state */ | |
1257 | if (newn->brightness_level != 0) { | |
1258 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
1259 | } else { | |
1260 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
1261 | } | |
1262 | } | |
1263 | } | |
1264 | } | |
1265 | ||
1266 | #undef TPACPI_COMPARE_KEY | |
1267 | #undef TPACPI_MAY_SEND_KEY | |
1268 | ||
1269 | static int hotkey_kthread(void *data) | |
1270 | { | |
1271 | struct tp_nvram_state s[2]; | |
1272 | u32 mask; | |
1273 | unsigned int si, so; | |
1274 | unsigned long t; | |
1275 | unsigned int change_detector, must_reset; | |
1276 | ||
1277 | mutex_lock(&hotkey_thread_mutex); | |
1278 | ||
1279 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) | |
1280 | goto exit; | |
1281 | ||
1282 | set_freezable(); | |
1283 | ||
1284 | so = 0; | |
1285 | si = 1; | |
1286 | t = 0; | |
1287 | ||
1288 | /* Initial state for compares */ | |
1289 | mutex_lock(&hotkey_thread_data_mutex); | |
1290 | change_detector = hotkey_config_change; | |
1291 | mask = hotkey_source_mask & hotkey_mask; | |
1292 | mutex_unlock(&hotkey_thread_data_mutex); | |
1293 | hotkey_read_nvram(&s[so], mask); | |
1294 | ||
1295 | while (!kthread_should_stop() && hotkey_poll_freq) { | |
1296 | if (t == 0) | |
1297 | t = 1000/hotkey_poll_freq; | |
1298 | t = msleep_interruptible(t); | |
1299 | if (unlikely(kthread_should_stop())) | |
1300 | break; | |
1301 | must_reset = try_to_freeze(); | |
1302 | if (t > 0 && !must_reset) | |
1303 | continue; | |
1304 | ||
1305 | mutex_lock(&hotkey_thread_data_mutex); | |
1306 | if (must_reset || hotkey_config_change != change_detector) { | |
1307 | /* forget old state on thaw or config change */ | |
1308 | si = so; | |
1309 | t = 0; | |
1310 | change_detector = hotkey_config_change; | |
1311 | } | |
1312 | mask = hotkey_source_mask & hotkey_mask; | |
1313 | mutex_unlock(&hotkey_thread_data_mutex); | |
1314 | ||
1315 | if (likely(mask)) { | |
1316 | hotkey_read_nvram(&s[si], mask); | |
1317 | if (likely(si != so)) { | |
1318 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
1319 | mask); | |
1320 | } | |
1321 | } | |
1322 | ||
1323 | so = si; | |
1324 | si ^= 1; | |
1325 | } | |
1326 | ||
1327 | exit: | |
1328 | mutex_unlock(&hotkey_thread_mutex); | |
1329 | return 0; | |
1330 | } | |
1331 | ||
1332 | static void hotkey_poll_stop_sync(void) | |
1333 | { | |
1334 | if (tpacpi_hotkey_task) { | |
1335 | if (frozen(tpacpi_hotkey_task) || | |
1336 | freezing(tpacpi_hotkey_task)) | |
1337 | thaw_process(tpacpi_hotkey_task); | |
1338 | ||
1339 | kthread_stop(tpacpi_hotkey_task); | |
1340 | tpacpi_hotkey_task = NULL; | |
1341 | mutex_lock(&hotkey_thread_mutex); | |
1342 | /* at this point, the thread did exit */ | |
1343 | mutex_unlock(&hotkey_thread_mutex); | |
1344 | } | |
1345 | } | |
1346 | ||
1347 | /* call with hotkey_mutex held */ | |
1348 | static void hotkey_poll_setup(int may_warn) | |
1349 | { | |
1350 | if ((hotkey_source_mask & hotkey_mask) != 0 && | |
1351 | hotkey_poll_freq > 0 && | |
1352 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { | |
1353 | if (!tpacpi_hotkey_task) { | |
1354 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
e0c7dfe7 | 1355 | NULL, TPACPI_FILE "d"); |
01e88f25 HMH |
1356 | if (IS_ERR(tpacpi_hotkey_task)) { |
1357 | tpacpi_hotkey_task = NULL; | |
e0c7dfe7 | 1358 | printk(TPACPI_ERR "could not create kernel thread " |
01e88f25 HMH |
1359 | "for hotkey polling\n"); |
1360 | } | |
1361 | } | |
1362 | } else { | |
1363 | hotkey_poll_stop_sync(); | |
1364 | if (may_warn && | |
1365 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { | |
e0c7dfe7 | 1366 | printk(TPACPI_NOTICE "hot keys 0x%08x require polling, " |
01e88f25 HMH |
1367 | "which is currently disabled\n", |
1368 | hotkey_source_mask); | |
1369 | } | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | static void hotkey_poll_setup_safe(int may_warn) | |
1374 | { | |
1375 | mutex_lock(&hotkey_mutex); | |
1376 | hotkey_poll_setup(may_warn); | |
1377 | mutex_unlock(&hotkey_mutex); | |
1378 | } | |
1379 | ||
1380 | static int hotkey_inputdev_open(struct input_dev *dev) | |
1381 | { | |
1382 | switch (tpacpi_lifecycle) { | |
1383 | case TPACPI_LIFE_INIT: | |
1384 | /* | |
1385 | * hotkey_init will call hotkey_poll_setup_safe | |
1386 | * at the appropriate moment | |
1387 | */ | |
1388 | return 0; | |
1389 | case TPACPI_LIFE_EXITING: | |
1390 | return -EBUSY; | |
1391 | case TPACPI_LIFE_RUNNING: | |
1392 | hotkey_poll_setup_safe(0); | |
1393 | return 0; | |
1394 | } | |
1395 | ||
1396 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
1397 | BUG(); | |
1398 | return -EBUSY; | |
1399 | } | |
1400 | ||
1401 | static void hotkey_inputdev_close(struct input_dev *dev) | |
1402 | { | |
1403 | /* disable hotkey polling when possible */ | |
1404 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) | |
1405 | hotkey_poll_setup_safe(0); | |
1406 | } | |
1407 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1408 | ||
a0416420 HMH |
1409 | /* sysfs hotkey enable ------------------------------------------------- */ |
1410 | static ssize_t hotkey_enable_show(struct device *dev, | |
1411 | struct device_attribute *attr, | |
1412 | char *buf) | |
1413 | { | |
ae92bd17 | 1414 | int res, status; |
a0416420 | 1415 | |
b2c985e7 | 1416 | res = hotkey_status_get(&status); |
a0416420 HMH |
1417 | if (res) |
1418 | return res; | |
1419 | ||
1420 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
1421 | } | |
1422 | ||
1423 | static ssize_t hotkey_enable_store(struct device *dev, | |
1424 | struct device_attribute *attr, | |
1425 | const char *buf, size_t count) | |
1426 | { | |
1427 | unsigned long t; | |
b2c985e7 | 1428 | int res; |
a0416420 HMH |
1429 | |
1430 | if (parse_strtoul(buf, 1, &t)) | |
1431 | return -EINVAL; | |
1432 | ||
b2c985e7 | 1433 | res = hotkey_status_set(t); |
a0416420 HMH |
1434 | |
1435 | return (res) ? res : count; | |
1436 | } | |
1437 | ||
1438 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 1439 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1440 | hotkey_enable_show, hotkey_enable_store); |
1441 | ||
1442 | /* sysfs hotkey mask --------------------------------------------------- */ | |
1443 | static ssize_t hotkey_mask_show(struct device *dev, | |
1444 | struct device_attribute *attr, | |
1445 | char *buf) | |
1446 | { | |
b2c985e7 | 1447 | int res; |
a0416420 | 1448 | |
b2c985e7 HMH |
1449 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1450 | return -ERESTARTSYS; | |
1451 | res = hotkey_mask_get(); | |
1452 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 1453 | |
b2c985e7 HMH |
1454 | return (res)? |
1455 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
1456 | } |
1457 | ||
1458 | static ssize_t hotkey_mask_store(struct device *dev, | |
1459 | struct device_attribute *attr, | |
1460 | const char *buf, size_t count) | |
1461 | { | |
1462 | unsigned long t; | |
b2c985e7 | 1463 | int res; |
a0416420 | 1464 | |
ae92bd17 | 1465 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
1466 | return -EINVAL; |
1467 | ||
b2c985e7 HMH |
1468 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1469 | return -ERESTARTSYS; | |
1470 | ||
1471 | res = hotkey_mask_set(t); | |
01e88f25 HMH |
1472 | |
1473 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1474 | hotkey_poll_setup(1); | |
1475 | #endif | |
1476 | ||
b2c985e7 | 1477 | mutex_unlock(&hotkey_mutex); |
a0416420 HMH |
1478 | |
1479 | return (res) ? res : count; | |
1480 | } | |
1481 | ||
1482 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 1483 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
1484 | hotkey_mask_show, hotkey_mask_store); |
1485 | ||
1486 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
1487 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
1488 | struct device_attribute *attr, | |
1489 | char *buf) | |
1490 | { | |
1491 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
1492 | } | |
1493 | ||
1494 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 1495 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
1496 | |
1497 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
1498 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
1499 | struct device_attribute *attr, | |
1500 | char *buf) | |
1501 | { | |
ae92bd17 | 1502 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
1503 | } |
1504 | ||
1505 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 1506 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 1507 | |
9b010de5 HMH |
1508 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
1509 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
1510 | struct device_attribute *attr, | |
1511 | char *buf) | |
1512 | { | |
01e88f25 HMH |
1513 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
1514 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
1515 | } |
1516 | ||
1517 | static struct device_attribute dev_attr_hotkey_all_mask = | |
1518 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
1519 | ||
1520 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
1521 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
1522 | struct device_attribute *attr, | |
1523 | char *buf) | |
1524 | { | |
1525 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
1526 | (hotkey_all_mask | hotkey_source_mask) |
1527 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
1528 | } |
1529 | ||
1530 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
1531 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
1532 | hotkey_recommended_mask_show, NULL); | |
1533 | ||
01e88f25 HMH |
1534 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1535 | ||
1536 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
1537 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
1538 | struct device_attribute *attr, | |
1539 | char *buf) | |
1540 | { | |
1541 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
1542 | } | |
1543 | ||
1544 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
1545 | struct device_attribute *attr, | |
1546 | const char *buf, size_t count) | |
1547 | { | |
1548 | unsigned long t; | |
1549 | ||
1550 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
1551 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
1552 | return -EINVAL; | |
1553 | ||
1554 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1555 | return -ERESTARTSYS; | |
1556 | ||
1557 | HOTKEY_CONFIG_CRITICAL_START | |
1558 | hotkey_source_mask = t; | |
1559 | HOTKEY_CONFIG_CRITICAL_END | |
1560 | ||
1561 | hotkey_poll_setup(1); | |
1562 | ||
1563 | mutex_unlock(&hotkey_mutex); | |
1564 | ||
1565 | return count; | |
1566 | } | |
1567 | ||
1568 | static struct device_attribute dev_attr_hotkey_source_mask = | |
1569 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, | |
1570 | hotkey_source_mask_show, hotkey_source_mask_store); | |
1571 | ||
1572 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
1573 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
1574 | struct device_attribute *attr, | |
1575 | char *buf) | |
1576 | { | |
1577 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
1578 | } | |
1579 | ||
1580 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
1581 | struct device_attribute *attr, | |
1582 | const char *buf, size_t count) | |
1583 | { | |
1584 | unsigned long t; | |
1585 | ||
1586 | if (parse_strtoul(buf, 25, &t)) | |
1587 | return -EINVAL; | |
1588 | ||
1589 | if (mutex_lock_interruptible(&hotkey_mutex)) | |
1590 | return -ERESTARTSYS; | |
1591 | ||
1592 | hotkey_poll_freq = t; | |
1593 | ||
1594 | hotkey_poll_setup(1); | |
1595 | mutex_unlock(&hotkey_mutex); | |
1596 | ||
1597 | return count; | |
1598 | } | |
1599 | ||
1600 | static struct device_attribute dev_attr_hotkey_poll_freq = | |
1601 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, | |
1602 | hotkey_poll_freq_show, hotkey_poll_freq_store); | |
1603 | ||
1604 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
1605 | ||
74941a69 HMH |
1606 | /* sysfs hotkey radio_sw ----------------------------------------------- */ |
1607 | static ssize_t hotkey_radio_sw_show(struct device *dev, | |
1608 | struct device_attribute *attr, | |
1609 | char *buf) | |
1610 | { | |
1611 | int res, s; | |
1612 | res = hotkey_get_wlsw(&s); | |
1613 | if (res < 0) | |
1614 | return res; | |
1615 | ||
1616 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
1617 | } | |
1618 | ||
1619 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
1620 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
1621 | ||
ff80f137 HMH |
1622 | /* sysfs hotkey report_mode -------------------------------------------- */ |
1623 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
1624 | struct device_attribute *attr, | |
1625 | char *buf) | |
1626 | { | |
1627 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1628 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
1629 | } | |
1630 | ||
1631 | static struct device_attribute dev_attr_hotkey_report_mode = | |
1632 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
1633 | ||
a0416420 HMH |
1634 | /* --------------------------------------------------------------------- */ |
1635 | ||
ff80f137 HMH |
1636 | static struct attribute *hotkey_attributes[] __initdata = { |
1637 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 1638 | &dev_attr_hotkey_bios_enabled.attr, |
ff80f137 | 1639 | &dev_attr_hotkey_report_mode.attr, |
01e88f25 HMH |
1640 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1641 | &dev_attr_hotkey_mask.attr, | |
1642 | &dev_attr_hotkey_all_mask.attr, | |
1643 | &dev_attr_hotkey_recommended_mask.attr, | |
1644 | &dev_attr_hotkey_source_mask.attr, | |
1645 | &dev_attr_hotkey_poll_freq.attr, | |
1646 | #endif | |
ff80f137 HMH |
1647 | }; |
1648 | ||
1649 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 | 1650 | &dev_attr_hotkey_bios_mask.attr, |
01e88f25 HMH |
1651 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1652 | &dev_attr_hotkey_mask.attr, | |
9b010de5 HMH |
1653 | &dev_attr_hotkey_all_mask.attr, |
1654 | &dev_attr_hotkey_recommended_mask.attr, | |
01e88f25 | 1655 | #endif |
a0416420 HMH |
1656 | }; |
1657 | ||
a5763f22 | 1658 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 1659 | { |
0f089147 HMH |
1660 | /* Requirements for changing the default keymaps: |
1661 | * | |
1662 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
1663 | * good reasons. Do not change them unless you have deep | |
1664 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
1665 | * the various ThinkPad models. The driver behaves | |
1666 | * differently for KEY_RESERVED: such keys have their | |
1667 | * hot key mask *unset* in mask_recommended, and also | |
1668 | * in the initial hot key mask programmed into the | |
1669 | * firmware at driver load time, which means the firm- | |
1670 | * ware may react very differently if you change them to | |
1671 | * something else; | |
1672 | * | |
1673 | * 2. You must be subscribed to the linux-thinkpad and | |
1674 | * ibm-acpi-devel mailing lists, and you should read the | |
1675 | * list archives since 2007 if you want to change the | |
1676 | * keymaps. This requirement exists so that you will | |
1677 | * know the past history of problems with the thinkpad- | |
1678 | * acpi driver keymaps, and also that you will be | |
1679 | * listening to any bug reports; | |
1680 | * | |
1681 | * 3. Do not send thinkpad-acpi specific patches directly to | |
1682 | * for merging, *ever*. Send them to the linux-acpi | |
1683 | * mailinglist for comments. Merging is to be done only | |
1684 | * through acpi-test and the ACPI maintainer. | |
1685 | * | |
1686 | * If the above is too much to ask, don't change the keymap. | |
1687 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
1688 | */ | |
edf0e0e5 HMH |
1689 | static u16 ibm_keycode_map[] __initdata = { |
1690 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1691 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
1692 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1693 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1694 | |
1695 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1696 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1697 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1698 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
1699 | |
1700 | /* brightness: firmware always reacts to them, unless | |
1701 | * X.org did some tricks in the radeon BIOS scratch | |
1702 | * registers of *some* models */ | |
e927c08d | 1703 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 1704 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
1705 | |
1706 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 1707 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1708 | |
edf0e0e5 HMH |
1709 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1710 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1711 | |
1712 | /* Volume: firmware always react to it and reprograms | |
1713 | * the built-in *extra* mixer. Never map it to control | |
1714 | * another mixer by default. */ | |
e927c08d HMH |
1715 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1716 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1717 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1718 | |
edf0e0e5 | 1719 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1720 | |
edf0e0e5 HMH |
1721 | /* (assignments unknown, please report if found) */ |
1722 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1723 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1724 | }; | |
1725 | static u16 lenovo_keycode_map[] __initdata = { | |
1726 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1727 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
1728 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1729 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1730 | |
1731 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1732 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1733 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1734 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 1735 | |
56a185b4 | 1736 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 1737 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 1738 | |
edf0e0e5 | 1739 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1740 | |
edf0e0e5 HMH |
1741 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1742 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1743 | |
1744 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
1745 | * react to it and reprograms the built-in *extra* mixer. | |
1746 | * Never map it to control another mixer by default. | |
1747 | * | |
1748 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
1749 | * these over the regular keyboard, so these are no-ops, | |
1750 | * but there are still weird bugs re. MUTE, so do not | |
1751 | * change unless you get test reports from all Lenovo | |
1752 | * models. May cause the BIOS to interfere with the | |
1753 | * HDA mixer. | |
1754 | */ | |
e927c08d HMH |
1755 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1756 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1757 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1758 | |
edf0e0e5 | 1759 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1760 | |
edf0e0e5 HMH |
1761 | /* (assignments unknown, please report if found) */ |
1762 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1763 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1764 | }; | |
1765 | ||
1766 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
1767 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
1768 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
1769 | ||
6a38abbf | 1770 | int res, i; |
74941a69 | 1771 | int status; |
1b6521dc | 1772 | int hkeyv; |
b86c4722 | 1773 | |
fe08bc4b HMH |
1774 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
1775 | ||
6a38abbf | 1776 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
1777 | BUG_ON(tpacpi_inputdev->open != NULL || |
1778 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 1779 | |
e0c7dfe7 | 1780 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 1781 | mutex_init(&hotkey_mutex); |
5fba344c | 1782 | |
01e88f25 HMH |
1783 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1784 | mutex_init(&hotkey_thread_mutex); | |
1785 | mutex_init(&hotkey_thread_data_mutex); | |
1786 | #endif | |
1787 | ||
56b6aeb0 | 1788 | /* hotkey not supported on 570 */ |
d8fd94d9 | 1789 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 1790 | |
fe08bc4b | 1791 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 1792 | str_supported(tp_features.hotkey)); |
fe08bc4b | 1793 | |
d8fd94d9 | 1794 | if (tp_features.hotkey) { |
01e88f25 | 1795 | hotkey_dev_attributes = create_attr_set(10, NULL); |
a0416420 HMH |
1796 | if (!hotkey_dev_attributes) |
1797 | return -ENOMEM; | |
ff80f137 HMH |
1798 | res = add_many_to_attr_set(hotkey_dev_attributes, |
1799 | hotkey_attributes, | |
1800 | ARRAY_SIZE(hotkey_attributes)); | |
a0416420 HMH |
1801 | if (res) |
1802 | return res; | |
1803 | ||
56b6aeb0 | 1804 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1b6521dc HMH |
1805 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
1806 | for HKEY interface version 0x100 */ | |
1807 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
1808 | if ((hkeyv >> 8) != 1) { | |
e0c7dfe7 | 1809 | printk(TPACPI_ERR "unknown version of the " |
1b6521dc | 1810 | "HKEY interface: 0x%x\n", hkeyv); |
e0c7dfe7 HMH |
1811 | printk(TPACPI_ERR "please report this to %s\n", |
1812 | TPACPI_MAIL); | |
1b6521dc HMH |
1813 | } else { |
1814 | /* | |
1815 | * MHKV 0x100 in A31, R40, R40e, | |
1816 | * T4x, X31, and later | |
01e88f25 | 1817 | */ |
1b6521dc HMH |
1818 | tp_features.hotkey_mask = 1; |
1819 | } | |
1820 | } | |
56b6aeb0 | 1821 | |
fe08bc4b | 1822 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 1823 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 1824 | |
9b010de5 | 1825 | if (tp_features.hotkey_mask) { |
9b010de5 | 1826 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, |
1b6521dc | 1827 | "MHKA", "qd")) { |
e0c7dfe7 | 1828 | printk(TPACPI_ERR |
1b6521dc HMH |
1829 | "missing MHKA handler, " |
1830 | "please report this to %s\n", | |
e0c7dfe7 | 1831 | TPACPI_MAIL); |
9b010de5 | 1832 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ |
1b6521dc | 1833 | } |
9b010de5 HMH |
1834 | } |
1835 | ||
01e88f25 HMH |
1836 | /* hotkey_source_mask *must* be zero for |
1837 | * the first hotkey_mask_get */ | |
b2c985e7 | 1838 | res = hotkey_status_get(&hotkey_orig_status); |
a0416420 | 1839 | if (!res && tp_features.hotkey_mask) { |
b2c985e7 HMH |
1840 | res = hotkey_mask_get(); |
1841 | hotkey_orig_mask = hotkey_mask; | |
1842 | if (!res) { | |
1843 | res = add_many_to_attr_set( | |
1844 | hotkey_dev_attributes, | |
1845 | hotkey_mask_attributes, | |
1846 | ARRAY_SIZE(hotkey_mask_attributes)); | |
1847 | } | |
a0416420 | 1848 | } |
74941a69 | 1849 | |
01e88f25 HMH |
1850 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1851 | if (tp_features.hotkey_mask) { | |
1852 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK | |
1853 | & ~hotkey_all_mask; | |
1854 | } else { | |
1855 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; | |
1856 | } | |
1857 | ||
1858 | vdbg_printk(TPACPI_DBG_INIT, | |
1859 | "hotkey source mask 0x%08x, polling freq %d\n", | |
1860 | hotkey_source_mask, hotkey_poll_freq); | |
1861 | #endif | |
1862 | ||
74941a69 HMH |
1863 | /* Not all thinkpads have a hardware radio switch */ |
1864 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
1865 | tp_features.hotkey_wlsw = 1; | |
e0c7dfe7 | 1866 | printk(TPACPI_INFO |
74941a69 HMH |
1867 | "radio switch found; radios are %s\n", |
1868 | enabled(status, 0)); | |
1869 | res = add_to_attr_set(hotkey_dev_attributes, | |
1870 | &dev_attr_hotkey_radio_sw.attr); | |
1871 | } | |
1872 | ||
a0416420 HMH |
1873 | if (!res) |
1874 | res = register_attr_set_with_sysfs( | |
1875 | hotkey_dev_attributes, | |
1876 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
1877 | if (res) |
1878 | return res; | |
6a38abbf | 1879 | |
edf0e0e5 HMH |
1880 | /* Set up key map */ |
1881 | ||
1882 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, | |
1883 | GFP_KERNEL); | |
1884 | if (!hotkey_keycode_map) { | |
e0c7dfe7 | 1885 | printk(TPACPI_ERR "failed to allocate memory for key map\n"); |
edf0e0e5 HMH |
1886 | return -ENOMEM; |
1887 | } | |
1888 | ||
1889 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
1890 | dbg_printk(TPACPI_DBG_INIT, | |
1891 | "using Lenovo default hot key map\n"); | |
1892 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
1893 | TPACPI_HOTKEY_MAP_SIZE); | |
1894 | } else { | |
1895 | dbg_printk(TPACPI_DBG_INIT, | |
1896 | "using IBM default hot key map\n"); | |
1897 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
1898 | TPACPI_HOTKEY_MAP_SIZE); | |
1899 | } | |
1900 | ||
6a38abbf HMH |
1901 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
1902 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
1903 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
edf0e0e5 HMH |
1904 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
1905 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
1906 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
1907 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
6a38abbf HMH |
1908 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
1909 | set_bit(hotkey_keycode_map[i], | |
1910 | tpacpi_inputdev->keybit); | |
1911 | } else { | |
1912 | if (i < sizeof(hotkey_reserved_mask)*8) | |
1913 | hotkey_reserved_mask |= 1 << i; | |
1914 | } | |
1915 | } | |
1916 | ||
5c29d58f HMH |
1917 | if (tp_features.hotkey_wlsw) { |
1918 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
1919 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
1920 | } | |
1921 | ||
1a343760 HMH |
1922 | dbg_printk(TPACPI_DBG_INIT, |
1923 | "enabling hot key handling\n"); | |
b2c985e7 HMH |
1924 | res = hotkey_status_set(1); |
1925 | if (res) | |
1926 | return res; | |
01e88f25 HMH |
1927 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) |
1928 | & ~hotkey_reserved_mask) | |
1a343760 | 1929 | | hotkey_orig_mask); |
01e88f25 | 1930 | if (res < 0 && res != -ENXIO) |
1a343760 | 1931 | return res; |
ff80f137 HMH |
1932 | |
1933 | dbg_printk(TPACPI_DBG_INIT, | |
1934 | "legacy hot key reporting over procfs %s\n", | |
1935 | (hotkey_report_mode < 2) ? | |
1936 | "enabled" : "disabled"); | |
01e88f25 HMH |
1937 | |
1938 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1939 | tpacpi_inputdev->open = &hotkey_inputdev_open; | |
1940 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
1941 | ||
1942 | hotkey_poll_setup_safe(1); | |
1943 | #endif | |
56b6aeb0 HMH |
1944 | } |
1945 | ||
d8fd94d9 | 1946 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
1947 | } |
1948 | ||
1949 | static void hotkey_exit(void) | |
1950 | { | |
01e88f25 HMH |
1951 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
1952 | hotkey_poll_stop_sync(); | |
1953 | #endif | |
1954 | ||
d8fd94d9 | 1955 | if (tp_features.hotkey) { |
b2c985e7 HMH |
1956 | dbg_printk(TPACPI_DBG_EXIT, "restoring original hot key mask\n"); |
1957 | /* no short-circuit boolean operator below! */ | |
1958 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
1959 | hotkey_status_set(hotkey_orig_status)) != 0) | |
e0c7dfe7 | 1960 | printk(TPACPI_ERR "failed to restore hot key mask to BIOS defaults\n"); |
5fba344c | 1961 | } |
a0416420 HMH |
1962 | |
1963 | if (hotkey_dev_attributes) { | |
1964 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
1965 | hotkey_dev_attributes = NULL; | |
1966 | } | |
56b6aeb0 HMH |
1967 | } |
1968 | ||
1969 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
1970 | { | |
6a38abbf | 1971 | u32 hkey; |
b7c8c200 | 1972 | unsigned int scancode; |
3eea123d | 1973 | int send_acpi_ev; |
3e5ce914 | 1974 | int ignore_acpi_ev; |
3eea123d HMH |
1975 | |
1976 | if (event != 0x80) { | |
e0c7dfe7 | 1977 | printk(TPACPI_ERR "unknown HKEY notification event %d\n", event); |
3eea123d HMH |
1978 | /* forward it to userspace, maybe it knows how to handle it */ |
1979 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, | |
1980 | ibm->acpi->device->dev.bus_id, | |
1981 | event, 0); | |
1982 | return; | |
1983 | } | |
1984 | ||
1985 | while (1) { | |
1986 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
e0c7dfe7 | 1987 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
3eea123d HMH |
1988 | return; |
1989 | } | |
1990 | ||
1991 | if (hkey == 0) { | |
1992 | /* queue empty */ | |
1993 | return; | |
1994 | } | |
1995 | ||
1996 | send_acpi_ev = 0; | |
3e5ce914 | 1997 | ignore_acpi_ev = 0; |
56b6aeb0 | 1998 | |
ff80f137 HMH |
1999 | switch (hkey >> 12) { |
2000 | case 1: | |
2001 | /* 0x1000-0x1FFF: key presses */ | |
2002 | scancode = hkey & 0xfff; | |
2003 | if (scancode > 0 && scancode < 0x21) { | |
2004 | scancode--; | |
01e88f25 HMH |
2005 | if (!(hotkey_source_mask & (1 << scancode))) { |
2006 | tpacpi_input_send_key(scancode); | |
2007 | } else { | |
2008 | ignore_acpi_ev = 1; | |
2009 | } | |
ff80f137 | 2010 | } else { |
e0c7dfe7 | 2011 | printk(TPACPI_ERR |
ff80f137 HMH |
2012 | "hotkey 0x%04x out of range for keyboard map\n", |
2013 | hkey); | |
2014 | send_acpi_ev = 1; | |
2015 | } | |
2016 | break; | |
2017 | case 5: | |
2018 | /* 0x5000-0x5FFF: LID */ | |
2019 | /* we don't handle it through this path, just | |
2020 | * eat up known LID events */ | |
2021 | if (hkey != 0x5001 && hkey != 0x5002) { | |
e0c7dfe7 | 2022 | printk(TPACPI_ERR |
3eea123d HMH |
2023 | "unknown LID-related HKEY event: 0x%04x\n", |
2024 | hkey); | |
ff80f137 | 2025 | send_acpi_ev = 1; |
3e5ce914 HMH |
2026 | } else { |
2027 | ignore_acpi_ev = 1; | |
ff80f137 HMH |
2028 | } |
2029 | break; | |
2030 | case 7: | |
2031 | /* 0x7000-0x7FFF: misc */ | |
2032 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
2033 | tpacpi_input_send_radiosw(); | |
6a38abbf | 2034 | break; |
6a38abbf | 2035 | } |
ff80f137 HMH |
2036 | /* fallthrough to default */ |
2037 | default: | |
2038 | /* case 2: dock-related */ | |
2039 | /* 0x2305 - T43 waking up due to bay lever eject while aslept */ | |
2040 | /* case 3: ultra-bay related. maybe bay in dock? */ | |
2041 | /* 0x3003 - T43 after wake up by bay lever eject (0x2305) */ | |
e0c7dfe7 | 2042 | printk(TPACPI_NOTICE "unhandled HKEY event 0x%04x\n", hkey); |
ff80f137 | 2043 | send_acpi_ev = 1; |
6a38abbf | 2044 | } |
ff80f137 | 2045 | |
3eea123d | 2046 | /* Legacy events */ |
3e5ce914 | 2047 | if (!ignore_acpi_ev && (send_acpi_ev || hotkey_report_mode < 2)) { |
3eea123d | 2048 | acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey); |
3e5ce914 | 2049 | } |
ff80f137 | 2050 | |
3eea123d | 2051 | /* netlink events */ |
3e5ce914 | 2052 | if (!ignore_acpi_ev && send_acpi_ev) { |
3eea123d HMH |
2053 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
2054 | ibm->acpi->device->dev.bus_id, | |
2055 | event, hkey); | |
2056 | } | |
56b6aeb0 HMH |
2057 | } |
2058 | } | |
2059 | ||
5c29d58f HMH |
2060 | static void hotkey_resume(void) |
2061 | { | |
b2c985e7 | 2062 | if (hotkey_mask_get()) |
e0c7dfe7 | 2063 | printk(TPACPI_ERR "error while trying to read hot key mask from firmware\n"); |
5c29d58f | 2064 | tpacpi_input_send_radiosw(); |
01e88f25 HMH |
2065 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2066 | hotkey_poll_setup_safe(0); | |
2067 | #endif | |
5c29d58f HMH |
2068 | } |
2069 | ||
a0416420 | 2070 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2071 | static int hotkey_read(char *p) |
1da177e4 | 2072 | { |
ae92bd17 | 2073 | int res, status; |
1da177e4 LT |
2074 | int len = 0; |
2075 | ||
d8fd94d9 | 2076 | if (!tp_features.hotkey) { |
78f81cc4 BD |
2077 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2078 | return len; | |
2079 | } | |
2080 | ||
fc589a3c HMH |
2081 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2082 | return -ERESTARTSYS; | |
b2c985e7 HMH |
2083 | res = hotkey_status_get(&status); |
2084 | if (!res) | |
2085 | res = hotkey_mask_get(); | |
40ca9fdf | 2086 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
2087 | if (res) |
2088 | return res; | |
1da177e4 LT |
2089 | |
2090 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 2091 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2092 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
2093 | len += sprintf(p + len, |
2094 | "commands:\tenable, disable, reset, <mask>\n"); | |
2095 | } else { | |
2096 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
2097 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
2098 | } | |
2099 | ||
2100 | return len; | |
2101 | } | |
2102 | ||
78f81cc4 | 2103 | static int hotkey_write(char *buf) |
1da177e4 | 2104 | { |
ae92bd17 HMH |
2105 | int res, status; |
2106 | u32 mask; | |
1da177e4 | 2107 | char *cmd; |
1da177e4 | 2108 | |
d8fd94d9 | 2109 | if (!tp_features.hotkey) |
1da177e4 LT |
2110 | return -ENODEV; |
2111 | ||
fc589a3c HMH |
2112 | if (mutex_lock_interruptible(&hotkey_mutex)) |
2113 | return -ERESTARTSYS; | |
40ca9fdf | 2114 | |
b2c985e7 HMH |
2115 | status = -1; |
2116 | mask = hotkey_mask; | |
78f81cc4 | 2117 | |
40ca9fdf | 2118 | res = 0; |
1da177e4 LT |
2119 | while ((cmd = next_cmd(&buf))) { |
2120 | if (strlencmp(cmd, "enable") == 0) { | |
2121 | status = 1; | |
2122 | } else if (strlencmp(cmd, "disable") == 0) { | |
2123 | status = 0; | |
2124 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
2125 | status = hotkey_orig_status; |
2126 | mask = hotkey_orig_mask; | |
1da177e4 LT |
2127 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
2128 | /* mask set */ | |
2129 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
2130 | /* mask set */ | |
40ca9fdf HMH |
2131 | } else { |
2132 | res = -EINVAL; | |
2133 | goto errexit; | |
2134 | } | |
1da177e4 | 2135 | } |
b2c985e7 HMH |
2136 | if (status != -1) |
2137 | res = hotkey_status_set(status); | |
1da177e4 | 2138 | |
b2c985e7 HMH |
2139 | if (!res && mask != hotkey_mask) |
2140 | res = hotkey_mask_set(mask); | |
1da177e4 | 2141 | |
40ca9fdf HMH |
2142 | errexit: |
2143 | mutex_unlock(&hotkey_mutex); | |
2144 | return res; | |
78f81cc4 | 2145 | } |
1da177e4 | 2146 | |
1ba90e3a | 2147 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
e0c7dfe7 | 2148 | {TPACPI_ACPI_HKEY_HID, 0}, |
1ba90e3a TR |
2149 | {"", 0}, |
2150 | }; | |
2151 | ||
8d376cd6 | 2152 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 2153 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
2154 | .notify = hotkey_notify, |
2155 | .handle = &hkey_handle, | |
2156 | .type = ACPI_DEVICE_NOTIFY, | |
2157 | }; | |
2158 | ||
a5763f22 HMH |
2159 | static struct ibm_struct hotkey_driver_data = { |
2160 | .name = "hotkey", | |
a5763f22 HMH |
2161 | .read = hotkey_read, |
2162 | .write = hotkey_write, | |
2163 | .exit = hotkey_exit, | |
5c29d58f | 2164 | .resume = hotkey_resume, |
8d376cd6 | 2165 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
2166 | }; |
2167 | ||
56b6aeb0 HMH |
2168 | /************************************************************************* |
2169 | * Bluetooth subdriver | |
2170 | */ | |
1da177e4 | 2171 | |
f74a27d4 HMH |
2172 | enum { |
2173 | /* ACPI GBDC/SBDC bits */ | |
2174 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
2175 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
2176 | TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */ | |
2177 | }; | |
2178 | ||
2179 | static int bluetooth_get_radiosw(void); | |
2180 | static int bluetooth_set_radiosw(int radio_on); | |
2181 | ||
d3a6ade4 HMH |
2182 | /* sysfs bluetooth enable ---------------------------------------------- */ |
2183 | static ssize_t bluetooth_enable_show(struct device *dev, | |
2184 | struct device_attribute *attr, | |
2185 | char *buf) | |
2186 | { | |
2187 | int status; | |
2188 | ||
2189 | status = bluetooth_get_radiosw(); | |
2190 | if (status < 0) | |
2191 | return status; | |
2192 | ||
2193 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2194 | } | |
2195 | ||
2196 | static ssize_t bluetooth_enable_store(struct device *dev, | |
2197 | struct device_attribute *attr, | |
2198 | const char *buf, size_t count) | |
2199 | { | |
2200 | unsigned long t; | |
2201 | int res; | |
2202 | ||
2203 | if (parse_strtoul(buf, 1, &t)) | |
2204 | return -EINVAL; | |
2205 | ||
2206 | res = bluetooth_set_radiosw(t); | |
2207 | ||
2208 | return (res) ? res : count; | |
2209 | } | |
2210 | ||
2211 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 2212 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2213 | bluetooth_enable_show, bluetooth_enable_store); |
2214 | ||
2215 | /* --------------------------------------------------------------------- */ | |
2216 | ||
2217 | static struct attribute *bluetooth_attributes[] = { | |
2218 | &dev_attr_bluetooth_enable.attr, | |
2219 | NULL | |
2220 | }; | |
2221 | ||
2222 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
2223 | .attrs = bluetooth_attributes, |
2224 | }; | |
2225 | ||
a5763f22 | 2226 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 2227 | { |
d3a6ade4 | 2228 | int res; |
d6fdd1e9 HMH |
2229 | int status = 0; |
2230 | ||
fe08bc4b HMH |
2231 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
2232 | ||
e0c7dfe7 | 2233 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2234 | |
78f81cc4 BD |
2235 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2236 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 2237 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
2238 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
2239 | ||
2240 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
2241 | str_supported(tp_features.bluetooth), | |
2242 | status); | |
2243 | ||
d3a6ade4 HMH |
2244 | if (tp_features.bluetooth) { |
2245 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
2246 | /* no bluetooth hardware present in system */ | |
2247 | tp_features.bluetooth = 0; | |
2248 | dbg_printk(TPACPI_DBG_INIT, | |
2249 | "bluetooth hardware not installed\n"); | |
2250 | } else { | |
2251 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2252 | &bluetooth_attr_group); | |
2253 | if (res) | |
2254 | return res; | |
2255 | } | |
d6fdd1e9 | 2256 | } |
fe08bc4b | 2257 | |
d8fd94d9 | 2258 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
2259 | } |
2260 | ||
d3a6ade4 HMH |
2261 | static void bluetooth_exit(void) |
2262 | { | |
2263 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2264 | &bluetooth_attr_group); | |
2265 | } | |
2266 | ||
d6fdd1e9 | 2267 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
2268 | { |
2269 | int status; | |
2270 | ||
d6fdd1e9 HMH |
2271 | if (!tp_features.bluetooth) |
2272 | return -ENODEV; | |
1da177e4 | 2273 | |
d6fdd1e9 HMH |
2274 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
2275 | return -EIO; | |
2276 | ||
2277 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
2278 | } | |
2279 | ||
2280 | static int bluetooth_set_radiosw(int radio_on) | |
2281 | { | |
2282 | int status; | |
2283 | ||
2284 | if (!tp_features.bluetooth) | |
2285 | return -ENODEV; | |
2286 | ||
2287 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
2288 | return -EIO; | |
2289 | if (radio_on) | |
2290 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
2291 | else | |
2292 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
2293 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
2294 | return -EIO; | |
2295 | ||
2296 | return 0; | |
1da177e4 LT |
2297 | } |
2298 | ||
d3a6ade4 | 2299 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 2300 | static int bluetooth_read(char *p) |
1da177e4 LT |
2301 | { |
2302 | int len = 0; | |
d6fdd1e9 | 2303 | int status = bluetooth_get_radiosw(); |
1da177e4 | 2304 | |
d8fd94d9 | 2305 | if (!tp_features.bluetooth) |
1da177e4 | 2306 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 2307 | else { |
d6fdd1e9 HMH |
2308 | len += sprintf(p + len, "status:\t\t%s\n", |
2309 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
2310 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2311 | } | |
2312 | ||
2313 | return len; | |
2314 | } | |
2315 | ||
78f81cc4 | 2316 | static int bluetooth_write(char *buf) |
1da177e4 | 2317 | { |
1da177e4 | 2318 | char *cmd; |
1da177e4 | 2319 | |
d8fd94d9 | 2320 | if (!tp_features.bluetooth) |
78f81cc4 | 2321 | return -ENODEV; |
1da177e4 LT |
2322 | |
2323 | while ((cmd = next_cmd(&buf))) { | |
2324 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2325 | bluetooth_set_radiosw(1); |
1da177e4 | 2326 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2327 | bluetooth_set_radiosw(0); |
1da177e4 LT |
2328 | } else |
2329 | return -EINVAL; | |
1da177e4 LT |
2330 | } |
2331 | ||
1da177e4 LT |
2332 | return 0; |
2333 | } | |
2334 | ||
a5763f22 HMH |
2335 | static struct ibm_struct bluetooth_driver_data = { |
2336 | .name = "bluetooth", | |
2337 | .read = bluetooth_read, | |
2338 | .write = bluetooth_write, | |
d3a6ade4 | 2339 | .exit = bluetooth_exit, |
a5763f22 HMH |
2340 | }; |
2341 | ||
56b6aeb0 HMH |
2342 | /************************************************************************* |
2343 | * Wan subdriver | |
2344 | */ | |
2345 | ||
f74a27d4 HMH |
2346 | enum { |
2347 | /* ACPI GWAN/SWAN bits */ | |
2348 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
2349 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
2350 | TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */ | |
2351 | }; | |
2352 | ||
2353 | static int wan_get_radiosw(void); | |
2354 | static int wan_set_radiosw(int radio_on); | |
2355 | ||
d3a6ade4 HMH |
2356 | /* sysfs wan enable ---------------------------------------------------- */ |
2357 | static ssize_t wan_enable_show(struct device *dev, | |
2358 | struct device_attribute *attr, | |
2359 | char *buf) | |
2360 | { | |
2361 | int status; | |
2362 | ||
2363 | status = wan_get_radiosw(); | |
2364 | if (status < 0) | |
2365 | return status; | |
2366 | ||
2367 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
2368 | } | |
2369 | ||
2370 | static ssize_t wan_enable_store(struct device *dev, | |
2371 | struct device_attribute *attr, | |
2372 | const char *buf, size_t count) | |
2373 | { | |
2374 | unsigned long t; | |
2375 | int res; | |
2376 | ||
2377 | if (parse_strtoul(buf, 1, &t)) | |
2378 | return -EINVAL; | |
2379 | ||
2380 | res = wan_set_radiosw(t); | |
2381 | ||
2382 | return (res) ? res : count; | |
2383 | } | |
2384 | ||
2385 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 2386 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
2387 | wan_enable_show, wan_enable_store); |
2388 | ||
2389 | /* --------------------------------------------------------------------- */ | |
2390 | ||
2391 | static struct attribute *wan_attributes[] = { | |
2392 | &dev_attr_wan_enable.attr, | |
2393 | NULL | |
2394 | }; | |
2395 | ||
2396 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
2397 | .attrs = wan_attributes, |
2398 | }; | |
2399 | ||
a5763f22 | 2400 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 2401 | { |
d3a6ade4 | 2402 | int res; |
d6fdd1e9 HMH |
2403 | int status = 0; |
2404 | ||
fe08bc4b HMH |
2405 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
2406 | ||
e0c7dfe7 | 2407 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 2408 | |
d8fd94d9 | 2409 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
2410 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
2411 | ||
2412 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
2413 | str_supported(tp_features.wan), | |
2414 | status); | |
2415 | ||
d3a6ade4 HMH |
2416 | if (tp_features.wan) { |
2417 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
2418 | /* no wan hardware present in system */ | |
2419 | tp_features.wan = 0; | |
2420 | dbg_printk(TPACPI_DBG_INIT, | |
2421 | "wan hardware not installed\n"); | |
2422 | } else { | |
2423 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2424 | &wan_attr_group); | |
2425 | if (res) | |
2426 | return res; | |
2427 | } | |
d6fdd1e9 | 2428 | } |
fe08bc4b | 2429 | |
d8fd94d9 | 2430 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
2431 | } |
2432 | ||
d3a6ade4 HMH |
2433 | static void wan_exit(void) |
2434 | { | |
2435 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2436 | &wan_attr_group); | |
2437 | } | |
2438 | ||
d6fdd1e9 | 2439 | static int wan_get_radiosw(void) |
42adb53c JF |
2440 | { |
2441 | int status; | |
2442 | ||
d6fdd1e9 HMH |
2443 | if (!tp_features.wan) |
2444 | return -ENODEV; | |
42adb53c | 2445 | |
d6fdd1e9 HMH |
2446 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
2447 | return -EIO; | |
2448 | ||
2449 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
2450 | } | |
2451 | ||
2452 | static int wan_set_radiosw(int radio_on) | |
2453 | { | |
2454 | int status; | |
2455 | ||
2456 | if (!tp_features.wan) | |
2457 | return -ENODEV; | |
2458 | ||
2459 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
2460 | return -EIO; | |
2461 | if (radio_on) | |
2462 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
2463 | else | |
2464 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
2465 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
2466 | return -EIO; | |
2467 | ||
2468 | return 0; | |
42adb53c JF |
2469 | } |
2470 | ||
d3a6ade4 | 2471 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
2472 | static int wan_read(char *p) |
2473 | { | |
2474 | int len = 0; | |
d6fdd1e9 | 2475 | int status = wan_get_radiosw(); |
42adb53c | 2476 | |
d8fd94d9 | 2477 | if (!tp_features.wan) |
42adb53c | 2478 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 2479 | else { |
d6fdd1e9 HMH |
2480 | len += sprintf(p + len, "status:\t\t%s\n", |
2481 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
2482 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
2483 | } | |
2484 | ||
2485 | return len; | |
2486 | } | |
2487 | ||
2488 | static int wan_write(char *buf) | |
2489 | { | |
42adb53c | 2490 | char *cmd; |
42adb53c | 2491 | |
d8fd94d9 | 2492 | if (!tp_features.wan) |
42adb53c JF |
2493 | return -ENODEV; |
2494 | ||
2495 | while ((cmd = next_cmd(&buf))) { | |
2496 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 2497 | wan_set_radiosw(1); |
42adb53c | 2498 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 2499 | wan_set_radiosw(0); |
42adb53c JF |
2500 | } else |
2501 | return -EINVAL; | |
42adb53c JF |
2502 | } |
2503 | ||
42adb53c JF |
2504 | return 0; |
2505 | } | |
2506 | ||
a5763f22 HMH |
2507 | static struct ibm_struct wan_driver_data = { |
2508 | .name = "wan", | |
2509 | .read = wan_read, | |
2510 | .write = wan_write, | |
d3a6ade4 | 2511 | .exit = wan_exit, |
92641177 | 2512 | .flags.experimental = 1, |
a5763f22 HMH |
2513 | }; |
2514 | ||
56b6aeb0 HMH |
2515 | /************************************************************************* |
2516 | * Video subdriver | |
2517 | */ | |
2518 | ||
f74a27d4 HMH |
2519 | enum video_access_mode { |
2520 | TPACPI_VIDEO_NONE = 0, | |
2521 | TPACPI_VIDEO_570, /* 570 */ | |
2522 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
2523 | TPACPI_VIDEO_NEW, /* all others */ | |
2524 | }; | |
2525 | ||
2526 | enum { /* video status flags, based on VIDEO_570 */ | |
2527 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
2528 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
2529 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
2530 | }; | |
2531 | ||
2532 | enum { /* TPACPI_VIDEO_570 constants */ | |
2533 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
2534 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
2535 | * video_status_flags */ | |
2536 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
2537 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
2538 | }; | |
2539 | ||
9a8e1738 HMH |
2540 | static enum video_access_mode video_supported; |
2541 | static int video_orig_autosw; | |
78f81cc4 | 2542 | |
f74a27d4 HMH |
2543 | static int video_autosw_get(void); |
2544 | static int video_autosw_set(int enable); | |
2545 | ||
e0c7dfe7 | 2546 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
56b6aeb0 HMH |
2547 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ |
2548 | "\\_SB.PCI0.VID0", /* 770e */ | |
2549 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
2550 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
2551 | ); /* R30, R31 */ | |
2552 | ||
e0c7dfe7 | 2553 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 2554 | |
a5763f22 | 2555 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 2556 | { |
78f81cc4 BD |
2557 | int ivga; |
2558 | ||
fe08bc4b HMH |
2559 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
2560 | ||
e0c7dfe7 HMH |
2561 | TPACPI_ACPIHANDLE_INIT(vid); |
2562 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 2563 | |
78f81cc4 BD |
2564 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
2565 | /* G41, assume IVGA doesn't change */ | |
2566 | vid_handle = vid2_handle; | |
2567 | ||
2568 | if (!vid_handle) | |
2569 | /* video switching not supported on R30, R31 */ | |
efa27145 | 2570 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
2571 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
2572 | /* 570 */ | |
efa27145 | 2573 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
2574 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
2575 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2576 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
2577 | else |
2578 | /* all others */ | |
efa27145 | 2579 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 2580 | |
fe08bc4b HMH |
2581 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
2582 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
2583 | video_supported); | |
2584 | ||
5fba344c | 2585 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
2586 | } |
2587 | ||
56b6aeb0 HMH |
2588 | static void video_exit(void) |
2589 | { | |
83f34724 HMH |
2590 | dbg_printk(TPACPI_DBG_EXIT, |
2591 | "restoring original video autoswitch mode\n"); | |
2592 | if (video_autosw_set(video_orig_autosw)) | |
e0c7dfe7 | 2593 | printk(TPACPI_ERR "error while trying to restore original " |
83f34724 | 2594 | "video autoswitch mode\n"); |
56b6aeb0 HMH |
2595 | } |
2596 | ||
83f34724 | 2597 | static int video_outputsw_get(void) |
1da177e4 LT |
2598 | { |
2599 | int status = 0; | |
2600 | int i; | |
2601 | ||
83f34724 HMH |
2602 | switch (video_supported) { |
2603 | case TPACPI_VIDEO_570: | |
2604 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
2605 | TP_ACPI_VIDEO_570_PHSCMD)) | |
2606 | return -EIO; | |
2607 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
2608 | break; | |
2609 | case TPACPI_VIDEO_770: | |
2610 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2611 | return -EIO; | |
2612 | if (i) | |
2613 | status |= TP_ACPI_VIDEO_S_LCD; | |
2614 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2615 | return -EIO; | |
2616 | if (i) | |
2617 | status |= TP_ACPI_VIDEO_S_CRT; | |
2618 | break; | |
2619 | case TPACPI_VIDEO_NEW: | |
2620 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
2621 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
2622 | return -EIO; | |
2623 | if (i) | |
2624 | status |= TP_ACPI_VIDEO_S_CRT; | |
2625 | ||
2626 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
2627 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
2628 | return -EIO; | |
2629 | if (i) | |
2630 | status |= TP_ACPI_VIDEO_S_LCD; | |
2631 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
2632 | return -EIO; | |
2633 | if (i) | |
2634 | status |= TP_ACPI_VIDEO_S_DVI; | |
2635 | break; | |
2636 | default: | |
2637 | return -ENOSYS; | |
78f81cc4 BD |
2638 | } |
2639 | ||
2640 | return status; | |
2641 | } | |
1da177e4 | 2642 | |
83f34724 | 2643 | static int video_outputsw_set(int status) |
78f81cc4 | 2644 | { |
83f34724 HMH |
2645 | int autosw; |
2646 | int res = 0; | |
2647 | ||
2648 | switch (video_supported) { | |
2649 | case TPACPI_VIDEO_570: | |
2650 | res = acpi_evalf(NULL, NULL, | |
2651 | "\\_SB.PHS2", "vdd", | |
2652 | TP_ACPI_VIDEO_570_PHS2CMD, | |
2653 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
2654 | break; | |
2655 | case TPACPI_VIDEO_770: | |
2656 | autosw = video_autosw_get(); | |
2657 | if (autosw < 0) | |
2658 | return autosw; | |
1da177e4 | 2659 | |
83f34724 HMH |
2660 | res = video_autosw_set(1); |
2661 | if (res) | |
2662 | return res; | |
2663 | res = acpi_evalf(vid_handle, NULL, | |
2664 | "ASWT", "vdd", status * 0x100, 0); | |
2665 | if (!autosw && video_autosw_set(autosw)) { | |
e0c7dfe7 | 2666 | printk(TPACPI_ERR "video auto-switch left enabled due to error\n"); |
83f34724 HMH |
2667 | return -EIO; |
2668 | } | |
2669 | break; | |
2670 | case TPACPI_VIDEO_NEW: | |
2671 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
2672 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
2673 | break; | |
2674 | default: | |
2675 | return -ENOSYS; | |
2676 | } | |
1da177e4 | 2677 | |
83f34724 | 2678 | return (res)? 0 : -EIO; |
1da177e4 LT |
2679 | } |
2680 | ||
83f34724 | 2681 | static int video_autosw_get(void) |
78f81cc4 | 2682 | { |
83f34724 | 2683 | int autosw = 0; |
78f81cc4 | 2684 | |
83f34724 HMH |
2685 | switch (video_supported) { |
2686 | case TPACPI_VIDEO_570: | |
2687 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
2688 | return -EIO; | |
2689 | break; | |
2690 | case TPACPI_VIDEO_770: | |
2691 | case TPACPI_VIDEO_NEW: | |
2692 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
2693 | return -EIO; | |
2694 | break; | |
2695 | default: | |
2696 | return -ENOSYS; | |
2697 | } | |
78f81cc4 | 2698 | |
83f34724 | 2699 | return autosw & 1; |
78f81cc4 BD |
2700 | } |
2701 | ||
83f34724 | 2702 | static int video_autosw_set(int enable) |
78f81cc4 | 2703 | { |
83f34724 HMH |
2704 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
2705 | return -EIO; | |
2706 | return 0; | |
78f81cc4 BD |
2707 | } |
2708 | ||
83f34724 | 2709 | static int video_outputsw_cycle(void) |
78f81cc4 | 2710 | { |
83f34724 HMH |
2711 | int autosw = video_autosw_get(); |
2712 | int res; | |
78f81cc4 | 2713 | |
83f34724 HMH |
2714 | if (autosw < 0) |
2715 | return autosw; | |
78f81cc4 | 2716 | |
83f34724 HMH |
2717 | switch (video_supported) { |
2718 | case TPACPI_VIDEO_570: | |
2719 | res = video_autosw_set(1); | |
2720 | if (res) | |
2721 | return res; | |
2722 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
2723 | break; | |
2724 | case TPACPI_VIDEO_770: | |
2725 | case TPACPI_VIDEO_NEW: | |
2726 | res = video_autosw_set(1); | |
2727 | if (res) | |
2728 | return res; | |
2729 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
2730 | break; | |
2731 | default: | |
2732 | return -ENOSYS; | |
2733 | } | |
2734 | if (!autosw && video_autosw_set(autosw)) { | |
e0c7dfe7 | 2735 | printk(TPACPI_ERR "video auto-switch left enabled due to error\n"); |
83f34724 | 2736 | return -EIO; |
78f81cc4 BD |
2737 | } |
2738 | ||
83f34724 HMH |
2739 | return (res)? 0 : -EIO; |
2740 | } | |
2741 | ||
2742 | static int video_expand_toggle(void) | |
2743 | { | |
2744 | switch (video_supported) { | |
2745 | case TPACPI_VIDEO_570: | |
2746 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
2747 | 0 : -EIO; | |
2748 | case TPACPI_VIDEO_770: | |
2749 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
2750 | 0 : -EIO; | |
2751 | case TPACPI_VIDEO_NEW: | |
2752 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
2753 | 0 : -EIO; | |
2754 | default: | |
2755 | return -ENOSYS; | |
2756 | } | |
2757 | /* not reached */ | |
78f81cc4 BD |
2758 | } |
2759 | ||
56b6aeb0 HMH |
2760 | static int video_read(char *p) |
2761 | { | |
83f34724 | 2762 | int status, autosw; |
56b6aeb0 HMH |
2763 | int len = 0; |
2764 | ||
83f34724 | 2765 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
2766 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2767 | return len; | |
2768 | } | |
2769 | ||
83f34724 HMH |
2770 | status = video_outputsw_get(); |
2771 | if (status < 0) | |
2772 | return status; | |
2773 | ||
2774 | autosw = video_autosw_get(); | |
2775 | if (autosw < 0) | |
2776 | return autosw; | |
2777 | ||
56b6aeb0 HMH |
2778 | len += sprintf(p + len, "status:\t\tsupported\n"); |
2779 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
2780 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 2781 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
2782 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
2783 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
2784 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
2785 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 2786 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
2787 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
2788 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
2789 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
2790 | ||
2791 | return len; | |
2792 | } | |
2793 | ||
78f81cc4 | 2794 | static int video_write(char *buf) |
1da177e4 LT |
2795 | { |
2796 | char *cmd; | |
2797 | int enable, disable, status; | |
83f34724 | 2798 | int res; |
1da177e4 | 2799 | |
83f34724 | 2800 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
2801 | return -ENODEV; |
2802 | ||
83f34724 HMH |
2803 | enable = 0; |
2804 | disable = 0; | |
1da177e4 LT |
2805 | |
2806 | while ((cmd = next_cmd(&buf))) { | |
2807 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 2808 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 2809 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 2810 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 2811 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 2812 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 2813 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 2814 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 2815 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 2816 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 2817 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 2818 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 2819 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 2820 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 2821 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
2822 | res = video_autosw_set(1); |
2823 | if (res) | |
2824 | return res; | |
1da177e4 | 2825 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
2826 | res = video_autosw_set(0); |
2827 | if (res) | |
2828 | return res; | |
1da177e4 | 2829 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
2830 | res = video_outputsw_cycle(); |
2831 | if (res) | |
2832 | return res; | |
1da177e4 | 2833 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
2834 | res = video_expand_toggle(); |
2835 | if (res) | |
2836 | return res; | |
1da177e4 LT |
2837 | } else |
2838 | return -EINVAL; | |
2839 | } | |
2840 | ||
2841 | if (enable || disable) { | |
83f34724 HMH |
2842 | status = video_outputsw_get(); |
2843 | if (status < 0) | |
2844 | return status; | |
2845 | res = video_outputsw_set((status & ~disable) | enable); | |
2846 | if (res) | |
2847 | return res; | |
1da177e4 LT |
2848 | } |
2849 | ||
2850 | return 0; | |
2851 | } | |
2852 | ||
a5763f22 HMH |
2853 | static struct ibm_struct video_driver_data = { |
2854 | .name = "video", | |
2855 | .read = video_read, | |
2856 | .write = video_write, | |
2857 | .exit = video_exit, | |
2858 | }; | |
2859 | ||
56b6aeb0 HMH |
2860 | /************************************************************************* |
2861 | * Light (thinklight) subdriver | |
2862 | */ | |
1da177e4 | 2863 | |
e0c7dfe7 HMH |
2864 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
2865 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 2866 | |
a5763f22 | 2867 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 2868 | { |
fe08bc4b HMH |
2869 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
2870 | ||
e0c7dfe7 HMH |
2871 | TPACPI_ACPIHANDLE_INIT(ledb); |
2872 | TPACPI_ACPIHANDLE_INIT(lght); | |
2873 | TPACPI_ACPIHANDLE_INIT(cmos); | |
5fba344c | 2874 | |
78f81cc4 | 2875 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 2876 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 2877 | |
d8fd94d9 | 2878 | if (tp_features.light) |
78f81cc4 BD |
2879 | /* light status not supported on |
2880 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
2881 | tp_features.light_status = |
2882 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 2883 | |
fe08bc4b | 2884 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 2885 | str_supported(tp_features.light)); |
fe08bc4b | 2886 | |
d8fd94d9 | 2887 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
2888 | } |
2889 | ||
78f81cc4 | 2890 | static int light_read(char *p) |
1da177e4 LT |
2891 | { |
2892 | int len = 0; | |
2893 | int status = 0; | |
2894 | ||
d8fd94d9 | 2895 | if (!tp_features.light) { |
78f81cc4 | 2896 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 2897 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
2898 | len += sprintf(p + len, "status:\t\tunknown\n"); |
2899 | len += sprintf(p + len, "commands:\ton, off\n"); | |
2900 | } else { | |
1da177e4 LT |
2901 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
2902 | return -EIO; | |
2903 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
2904 | len += sprintf(p + len, "commands:\ton, off\n"); |
2905 | } | |
1da177e4 LT |
2906 | |
2907 | return len; | |
2908 | } | |
2909 | ||
78f81cc4 | 2910 | static int light_write(char *buf) |
1da177e4 LT |
2911 | { |
2912 | int cmos_cmd, lght_cmd; | |
2913 | char *cmd; | |
2914 | int success; | |
78f81cc4 | 2915 | |
d8fd94d9 | 2916 | if (!tp_features.light) |
78f81cc4 BD |
2917 | return -ENODEV; |
2918 | ||
1da177e4 LT |
2919 | while ((cmd = next_cmd(&buf))) { |
2920 | if (strlencmp(cmd, "on") == 0) { | |
2921 | cmos_cmd = 0x0c; | |
2922 | lght_cmd = 1; | |
2923 | } else if (strlencmp(cmd, "off") == 0) { | |
2924 | cmos_cmd = 0x0d; | |
2925 | lght_cmd = 0; | |
2926 | } else | |
2927 | return -EINVAL; | |
78f81cc4 | 2928 | |
1da177e4 | 2929 | success = cmos_handle ? |
78f81cc4 BD |
2930 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
2931 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
2932 | if (!success) |
2933 | return -EIO; | |
2934 | } | |
2935 | ||
2936 | return 0; | |
2937 | } | |
2938 | ||
a5763f22 HMH |
2939 | static struct ibm_struct light_driver_data = { |
2940 | .name = "light", | |
2941 | .read = light_read, | |
2942 | .write = light_write, | |
2943 | }; | |
2944 | ||
56b6aeb0 HMH |
2945 | /************************************************************************* |
2946 | * Dock subdriver | |
2947 | */ | |
1da177e4 | 2948 | |
85998248 | 2949 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 | 2950 | |
f74a27d4 HMH |
2951 | static void dock_notify(struct ibm_struct *ibm, u32 event); |
2952 | static int dock_read(char *p); | |
2953 | static int dock_write(char *buf); | |
2954 | ||
e0c7dfe7 | 2955 | TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
56b6aeb0 HMH |
2956 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ |
2957 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
2958 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
2959 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
2960 | ||
5fba344c | 2961 | /* don't list other alternatives as we install a notify handler on the 570 */ |
e0c7dfe7 | 2962 | TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ |
5fba344c | 2963 | |
1ba90e3a TR |
2964 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
2965 | {PCI_ROOT_HID_STRING, 0}, | |
2966 | {"", 0}, | |
2967 | }; | |
2968 | ||
d94a7f16 HMH |
2969 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
2970 | { | |
2971 | .notify = dock_notify, | |
2972 | .handle = &dock_handle, | |
2973 | .type = ACPI_SYSTEM_NOTIFY, | |
2974 | }, | |
2975 | { | |
996fba08 HMH |
2976 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
2977 | * We just use it to get notifications of dock hotplug | |
2978 | * in very old thinkpads */ | |
1ba90e3a | 2979 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
2980 | .notify = dock_notify, |
2981 | .handle = &pci_handle, | |
2982 | .type = ACPI_SYSTEM_NOTIFY, | |
2983 | }, | |
2984 | }; | |
2985 | ||
2986 | static struct ibm_struct dock_driver_data[2] = { | |
2987 | { | |
2988 | .name = "dock", | |
2989 | .read = dock_read, | |
2990 | .write = dock_write, | |
2991 | .acpi = &ibm_dock_acpidriver[0], | |
2992 | }, | |
2993 | { | |
2994 | .name = "dock", | |
2995 | .acpi = &ibm_dock_acpidriver[1], | |
2996 | }, | |
2997 | }; | |
2998 | ||
1da177e4 LT |
2999 | #define dock_docked() (_sta(dock_handle) & 1) |
3000 | ||
a5763f22 | 3001 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 3002 | { |
fe08bc4b HMH |
3003 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
3004 | ||
e0c7dfe7 | 3005 | TPACPI_ACPIHANDLE_INIT(dock); |
5fba344c | 3006 | |
fe08bc4b HMH |
3007 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
3008 | str_supported(dock_handle != NULL)); | |
3009 | ||
5fba344c HMH |
3010 | return (dock_handle)? 0 : 1; |
3011 | } | |
3012 | ||
d94a7f16 HMH |
3013 | static int __init dock_init2(struct ibm_init_struct *iibm) |
3014 | { | |
3015 | int dock2_needed; | |
3016 | ||
3017 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
3018 | ||
3019 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
3020 | dock_driver_data[0].flags.acpi_notify_installed) { | |
e0c7dfe7 | 3021 | TPACPI_ACPIHANDLE_INIT(pci); |
d94a7f16 HMH |
3022 | dock2_needed = (pci_handle != NULL); |
3023 | vdbg_printk(TPACPI_DBG_INIT, | |
3024 | "dock PCI handler for the TP 570 is %s\n", | |
3025 | str_supported(dock2_needed)); | |
3026 | } else { | |
3027 | vdbg_printk(TPACPI_DBG_INIT, | |
3028 | "dock subdriver part 2 not required\n"); | |
3029 | dock2_needed = 0; | |
3030 | } | |
3031 | ||
3032 | return (dock2_needed)? 0 : 1; | |
3033 | } | |
3034 | ||
56b6aeb0 HMH |
3035 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
3036 | { | |
3037 | int docked = dock_docked(); | |
1ba90e3a TR |
3038 | int pci = ibm->acpi->hid && ibm->acpi->device && |
3039 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 3040 | int data; |
56b6aeb0 HMH |
3041 | |
3042 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 3043 | data = 1; /* button */ |
56b6aeb0 | 3044 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 3045 | data = 3; /* dock */ |
56b6aeb0 | 3046 | else if (event == 3 && docked) |
962ce8ca | 3047 | data = 1; /* button */ |
56b6aeb0 | 3048 | else if (event == 3 && !docked) |
962ce8ca | 3049 | data = 2; /* undock */ |
56b6aeb0 | 3050 | else if (event == 0 && docked) |
962ce8ca | 3051 | data = 3; /* dock */ |
56b6aeb0 | 3052 | else { |
e0c7dfe7 | 3053 | printk(TPACPI_ERR "unknown dock event %d, status %d\n", |
56b6aeb0 | 3054 | event, _sta(dock_handle)); |
962ce8ca | 3055 | data = 0; /* unknown */ |
56b6aeb0 | 3056 | } |
14e04fb3 | 3057 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca ZR |
3058 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3059 | ibm->acpi->device->dev.bus_id, | |
3060 | event, data); | |
56b6aeb0 HMH |
3061 | } |
3062 | ||
78f81cc4 | 3063 | static int dock_read(char *p) |
1da177e4 LT |
3064 | { |
3065 | int len = 0; | |
3066 | int docked = dock_docked(); | |
3067 | ||
3068 | if (!dock_handle) | |
3069 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3070 | else if (!docked) | |
3071 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
3072 | else { | |
3073 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
3074 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
3075 | } | |
3076 | ||
3077 | return len; | |
3078 | } | |
3079 | ||
78f81cc4 | 3080 | static int dock_write(char *buf) |
1da177e4 LT |
3081 | { |
3082 | char *cmd; | |
3083 | ||
3084 | if (!dock_docked()) | |
78f81cc4 | 3085 | return -ENODEV; |
1da177e4 LT |
3086 | |
3087 | while ((cmd = next_cmd(&buf))) { | |
3088 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
3089 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
3090 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
3091 | return -EIO; |
3092 | } else if (strlencmp(cmd, "dock") == 0) { | |
3093 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
3094 | return -EIO; | |
3095 | } else | |
3096 | return -EINVAL; | |
1da177e4 | 3097 | } |
56b6aeb0 HMH |
3098 | |
3099 | return 0; | |
1da177e4 | 3100 | } |
56b6aeb0 | 3101 | |
85998248 | 3102 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
3103 | |
3104 | /************************************************************************* | |
3105 | * Bay subdriver | |
3106 | */ | |
1da177e4 | 3107 | |
85998248 | 3108 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
f74a27d4 | 3109 | |
e0c7dfe7 | 3110 | TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
56b6aeb0 HMH |
3111 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ |
3112 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
3113 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
3114 | ); /* A21e, R30, R31 */ | |
e0c7dfe7 | 3115 | TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ |
56b6aeb0 HMH |
3116 | "_EJ0", /* all others */ |
3117 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
e0c7dfe7 | 3118 | TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ |
56b6aeb0 HMH |
3119 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ |
3120 | ); /* all others */ | |
e0c7dfe7 | 3121 | TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ |
56b6aeb0 HMH |
3122 | "_EJ0", /* 770x */ |
3123 | ); /* all others */ | |
3124 | ||
a5763f22 | 3125 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 3126 | { |
fe08bc4b HMH |
3127 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
3128 | ||
e0c7dfe7 | 3129 | TPACPI_ACPIHANDLE_INIT(bay); |
5fba344c | 3130 | if (bay_handle) |
e0c7dfe7 HMH |
3131 | TPACPI_ACPIHANDLE_INIT(bay_ej); |
3132 | TPACPI_ACPIHANDLE_INIT(bay2); | |
5fba344c | 3133 | if (bay2_handle) |
e0c7dfe7 | 3134 | TPACPI_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 3135 | |
d8fd94d9 HMH |
3136 | tp_features.bay_status = bay_handle && |
3137 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
3138 | tp_features.bay_status2 = bay2_handle && | |
3139 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 3140 | |
d8fd94d9 HMH |
3141 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
3142 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
3143 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
3144 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 3145 | |
fe08bc4b HMH |
3146 | vdbg_printk(TPACPI_DBG_INIT, |
3147 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
3148 | str_supported(tp_features.bay_status), |
3149 | str_supported(tp_features.bay_eject), | |
3150 | str_supported(tp_features.bay_status2), | |
3151 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 3152 | |
d8fd94d9 HMH |
3153 | return (tp_features.bay_status || tp_features.bay_eject || |
3154 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
3155 | } |
3156 | ||
56b6aeb0 HMH |
3157 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
3158 | { | |
14e04fb3 | 3159 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca ZR |
3160 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
3161 | ibm->acpi->device->dev.bus_id, | |
3162 | event, 0); | |
56b6aeb0 HMH |
3163 | } |
3164 | ||
78f81cc4 BD |
3165 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
3166 | ||
3167 | static int bay_read(char *p) | |
1da177e4 LT |
3168 | { |
3169 | int len = 0; | |
78f81cc4 BD |
3170 | int occupied = bay_occupied(bay); |
3171 | int occupied2 = bay_occupied(bay2); | |
3172 | int eject, eject2; | |
3173 | ||
d8fd94d9 HMH |
3174 | len += sprintf(p + len, "status:\t\t%s\n", |
3175 | tp_features.bay_status ? | |
3176 | (occupied ? "occupied" : "unoccupied") : | |
3177 | "not supported"); | |
3178 | if (tp_features.bay_status2) | |
78f81cc4 BD |
3179 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
3180 | "occupied" : "unoccupied"); | |
3181 | ||
d8fd94d9 HMH |
3182 | eject = tp_features.bay_eject && occupied; |
3183 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
3184 | |
3185 | if (eject && eject2) | |
3186 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
3187 | else if (eject) | |
1da177e4 | 3188 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
3189 | else if (eject2) |
3190 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
3191 | |
3192 | return len; | |
3193 | } | |
3194 | ||
78f81cc4 | 3195 | static int bay_write(char *buf) |
1da177e4 LT |
3196 | { |
3197 | char *cmd; | |
3198 | ||
d8fd94d9 | 3199 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
3200 | return -ENODEV; |
3201 | ||
1da177e4 | 3202 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 3203 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
3204 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
3205 | return -EIO; | |
d8fd94d9 | 3206 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
3207 | strlencmp(cmd, "eject2") == 0) { |
3208 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
3209 | return -EIO; |
3210 | } else | |
3211 | return -EINVAL; | |
3212 | } | |
3213 | ||
3214 | return 0; | |
78f81cc4 | 3215 | } |
a5763f22 | 3216 | |
8d376cd6 HMH |
3217 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
3218 | .notify = bay_notify, | |
3219 | .handle = &bay_handle, | |
3220 | .type = ACPI_SYSTEM_NOTIFY, | |
3221 | }; | |
3222 | ||
a5763f22 HMH |
3223 | static struct ibm_struct bay_driver_data = { |
3224 | .name = "bay", | |
3225 | .read = bay_read, | |
3226 | .write = bay_write, | |
8d376cd6 | 3227 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
3228 | }; |
3229 | ||
85998248 | 3230 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 3231 | |
56b6aeb0 HMH |
3232 | /************************************************************************* |
3233 | * CMOS subdriver | |
3234 | */ | |
3235 | ||
b616004c HMH |
3236 | /* sysfs cmos_command -------------------------------------------------- */ |
3237 | static ssize_t cmos_command_store(struct device *dev, | |
3238 | struct device_attribute *attr, | |
3239 | const char *buf, size_t count) | |
3240 | { | |
3241 | unsigned long cmos_cmd; | |
3242 | int res; | |
3243 | ||
3244 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
3245 | return -EINVAL; | |
3246 | ||
3247 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
3248 | return (res)? res : count; | |
3249 | } | |
3250 | ||
3251 | static struct device_attribute dev_attr_cmos_command = | |
3252 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
3253 | ||
3254 | /* --------------------------------------------------------------------- */ | |
3255 | ||
a5763f22 | 3256 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 3257 | { |
b616004c HMH |
3258 | int res; |
3259 | ||
fe08bc4b HMH |
3260 | vdbg_printk(TPACPI_DBG_INIT, |
3261 | "initializing cmos commands subdriver\n"); | |
3262 | ||
e0c7dfe7 | 3263 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 3264 | |
fe08bc4b HMH |
3265 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
3266 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
3267 | |
3268 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3269 | if (res) | |
3270 | return res; | |
3271 | ||
5fba344c HMH |
3272 | return (cmos_handle)? 0 : 1; |
3273 | } | |
3274 | ||
b616004c HMH |
3275 | static void cmos_exit(void) |
3276 | { | |
3277 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
3278 | } | |
3279 | ||
78f81cc4 | 3280 | static int cmos_read(char *p) |
1da177e4 LT |
3281 | { |
3282 | int len = 0; | |
3283 | ||
78f81cc4 BD |
3284 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
3285 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
3286 | if (!cmos_handle) |
3287 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3288 | else { | |
3289 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 3290 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
3291 | } |
3292 | ||
3293 | return len; | |
3294 | } | |
3295 | ||
78f81cc4 | 3296 | static int cmos_write(char *buf) |
1da177e4 LT |
3297 | { |
3298 | char *cmd; | |
c9bea99c | 3299 | int cmos_cmd, res; |
1da177e4 LT |
3300 | |
3301 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
3302 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
3303 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
3304 | /* cmos_cmd set */ |
3305 | } else | |
3306 | return -EINVAL; | |
3307 | ||
c9bea99c HMH |
3308 | res = issue_thinkpad_cmos_command(cmos_cmd); |
3309 | if (res) | |
3310 | return res; | |
1da177e4 LT |
3311 | } |
3312 | ||
3313 | return 0; | |
78f81cc4 BD |
3314 | } |
3315 | ||
a5763f22 HMH |
3316 | static struct ibm_struct cmos_driver_data = { |
3317 | .name = "cmos", | |
3318 | .read = cmos_read, | |
3319 | .write = cmos_write, | |
b616004c | 3320 | .exit = cmos_exit, |
a5763f22 | 3321 | }; |
56b6aeb0 HMH |
3322 | |
3323 | /************************************************************************* | |
3324 | * LED subdriver | |
3325 | */ | |
3326 | ||
f74a27d4 HMH |
3327 | enum led_access_mode { |
3328 | TPACPI_LED_NONE = 0, | |
3329 | TPACPI_LED_570, /* 570 */ | |
3330 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
3331 | TPACPI_LED_NEW, /* all others */ | |
3332 | }; | |
3333 | ||
3334 | enum { /* For TPACPI_LED_OLD */ | |
3335 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
3336 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
3337 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
3338 | }; | |
3339 | ||
9a8e1738 | 3340 | static enum led_access_mode led_supported; |
78f81cc4 | 3341 | |
e0c7dfe7 | 3342 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
56b6aeb0 HMH |
3343 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ |
3344 | "LED", /* all others */ | |
3345 | ); /* R30, R31 */ | |
3346 | ||
a5763f22 | 3347 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3348 | { |
fe08bc4b HMH |
3349 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
3350 | ||
e0c7dfe7 | 3351 | TPACPI_ACPIHANDLE_INIT(led); |
5fba344c | 3352 | |
78f81cc4 BD |
3353 | if (!led_handle) |
3354 | /* led not supported on R30, R31 */ | |
efa27145 | 3355 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
3356 | else if (strlencmp(led_path, "SLED") == 0) |
3357 | /* 570 */ | |
efa27145 | 3358 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
3359 | else if (strlencmp(led_path, "SYSL") == 0) |
3360 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 3361 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
3362 | else |
3363 | /* all others */ | |
efa27145 | 3364 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 3365 | |
fe08bc4b HMH |
3366 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
3367 | str_supported(led_supported), led_supported); | |
3368 | ||
5fba344c | 3369 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
3370 | } |
3371 | ||
3372 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
3373 | ||
3374 | static int led_read(char *p) | |
1da177e4 LT |
3375 | { |
3376 | int len = 0; | |
3377 | ||
78f81cc4 BD |
3378 | if (!led_supported) { |
3379 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3380 | return len; | |
3381 | } | |
3382 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3383 | ||
efa27145 | 3384 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3385 | /* 570 */ |
3386 | int i, status; | |
3387 | for (i = 0; i < 8; i++) { | |
3388 | if (!acpi_evalf(ec_handle, | |
3389 | &status, "GLED", "dd", 1 << i)) | |
3390 | return -EIO; | |
3391 | len += sprintf(p + len, "%d:\t\t%s\n", | |
3392 | i, led_status(status)); | |
3393 | } | |
3394 | } | |
3395 | ||
1da177e4 | 3396 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 3397 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
3398 | |
3399 | return len; | |
3400 | } | |
3401 | ||
78f81cc4 BD |
3402 | /* off, on, blink */ |
3403 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
3404 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
3405 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
3406 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
3407 | ||
78f81cc4 | 3408 | static int led_write(char *buf) |
1da177e4 LT |
3409 | { |
3410 | char *cmd; | |
78f81cc4 BD |
3411 | int led, ind, ret; |
3412 | ||
3413 | if (!led_supported) | |
3414 | return -ENODEV; | |
1da177e4 LT |
3415 | |
3416 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 3417 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
3418 | return -EINVAL; |
3419 | ||
78f81cc4 BD |
3420 | if (strstr(cmd, "off")) { |
3421 | ind = 0; | |
1da177e4 | 3422 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
3423 | ind = 1; |
3424 | } else if (strstr(cmd, "blink")) { | |
3425 | ind = 2; | |
1da177e4 LT |
3426 | } else |
3427 | return -EINVAL; | |
78f81cc4 | 3428 | |
efa27145 | 3429 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
3430 | /* 570 */ |
3431 | led = 1 << led; | |
1da177e4 | 3432 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 3433 | led, led_sled_arg1[ind])) |
1da177e4 | 3434 | return -EIO; |
efa27145 | 3435 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
3436 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
3437 | led = 1 << led; | |
efa27145 | 3438 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
3439 | if (ret >= 0) |
3440 | ret = | |
efa27145 | 3441 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 3442 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
3443 | if (ret >= 0) |
3444 | ret = | |
efa27145 | 3445 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 3446 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
3447 | if (ret < 0) |
3448 | return ret; | |
3449 | } else { | |
3450 | /* all others */ | |
3451 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
3452 | led, led_led_arg1[ind])) | |
1da177e4 | 3453 | return -EIO; |
78f81cc4 BD |
3454 | } |
3455 | } | |
3456 | ||
3457 | return 0; | |
3458 | } | |
3459 | ||
a5763f22 HMH |
3460 | static struct ibm_struct led_driver_data = { |
3461 | .name = "led", | |
3462 | .read = led_read, | |
3463 | .write = led_write, | |
3464 | }; | |
3465 | ||
56b6aeb0 HMH |
3466 | /************************************************************************* |
3467 | * Beep subdriver | |
3468 | */ | |
3469 | ||
e0c7dfe7 | 3470 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 3471 | |
a5763f22 | 3472 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 3473 | { |
fe08bc4b HMH |
3474 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
3475 | ||
e0c7dfe7 | 3476 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 3477 | |
fe08bc4b HMH |
3478 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
3479 | str_supported(beep_handle != NULL)); | |
3480 | ||
5fba344c HMH |
3481 | return (beep_handle)? 0 : 1; |
3482 | } | |
3483 | ||
78f81cc4 BD |
3484 | static int beep_read(char *p) |
3485 | { | |
3486 | int len = 0; | |
3487 | ||
3488 | if (!beep_handle) | |
3489 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3490 | else { | |
3491 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
3492 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
3493 | } | |
3494 | ||
3495 | return len; | |
3496 | } | |
3497 | ||
3498 | static int beep_write(char *buf) | |
3499 | { | |
3500 | char *cmd; | |
3501 | int beep_cmd; | |
3502 | ||
3503 | if (!beep_handle) | |
3504 | return -ENODEV; | |
3505 | ||
3506 | while ((cmd = next_cmd(&buf))) { | |
3507 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
3508 | beep_cmd >= 0 && beep_cmd <= 17) { | |
3509 | /* beep_cmd set */ | |
3510 | } else | |
3511 | return -EINVAL; | |
3512 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
3513 | return -EIO; | |
3514 | } | |
3515 | ||
3516 | return 0; | |
3517 | } | |
3518 | ||
a5763f22 HMH |
3519 | static struct ibm_struct beep_driver_data = { |
3520 | .name = "beep", | |
3521 | .read = beep_read, | |
3522 | .write = beep_write, | |
3523 | }; | |
3524 | ||
56b6aeb0 HMH |
3525 | /************************************************************************* |
3526 | * Thermal subdriver | |
3527 | */ | |
78f81cc4 | 3528 | |
f74a27d4 HMH |
3529 | enum thermal_access_mode { |
3530 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
3531 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
3532 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
3533 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
3534 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
3535 | }; | |
3536 | ||
3537 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
3538 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
3539 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
3540 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
3541 | }; | |
3542 | ||
3543 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ | |
3544 | struct ibm_thermal_sensors_struct { | |
3545 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
3546 | }; | |
3547 | ||
a26f878a | 3548 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 3549 | |
b21a15f6 HMH |
3550 | /* idx is zero-based */ |
3551 | static int thermal_get_sensor(int idx, s32 *value) | |
3552 | { | |
3553 | int t; | |
3554 | s8 tmp; | |
3555 | char tmpi[5]; | |
3556 | ||
3557 | t = TP_EC_THERMAL_TMP0; | |
3558 | ||
3559 | switch (thermal_read_mode) { | |
3560 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
3561 | case TPACPI_THERMAL_TPEC_16: | |
3562 | if (idx >= 8 && idx <= 15) { | |
3563 | t = TP_EC_THERMAL_TMP8; | |
3564 | idx -= 8; | |
3565 | } | |
3566 | /* fallthrough */ | |
3567 | #endif | |
3568 | case TPACPI_THERMAL_TPEC_8: | |
3569 | if (idx <= 7) { | |
3570 | if (!acpi_ec_read(t + idx, &tmp)) | |
3571 | return -EIO; | |
3572 | *value = tmp * 1000; | |
3573 | return 0; | |
3574 | } | |
3575 | break; | |
3576 | ||
3577 | case TPACPI_THERMAL_ACPI_UPDT: | |
3578 | if (idx <= 7) { | |
3579 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3580 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
3581 | return -EIO; | |
3582 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3583 | return -EIO; | |
3584 | *value = (t - 2732) * 100; | |
3585 | return 0; | |
3586 | } | |
3587 | break; | |
3588 | ||
3589 | case TPACPI_THERMAL_ACPI_TMP07: | |
3590 | if (idx <= 7) { | |
3591 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3592 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
3593 | return -EIO; | |
3594 | if (t > 127 || t < -127) | |
3595 | t = TP_EC_THERMAL_TMP_NA; | |
3596 | *value = t * 1000; | |
3597 | return 0; | |
3598 | } | |
3599 | break; | |
3600 | ||
3601 | case TPACPI_THERMAL_NONE: | |
3602 | default: | |
3603 | return -ENOSYS; | |
3604 | } | |
3605 | ||
3606 | return -EINVAL; | |
3607 | } | |
3608 | ||
3609 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
3610 | { | |
3611 | int res, i; | |
3612 | int n; | |
3613 | ||
3614 | n = 8; | |
3615 | i = 0; | |
3616 | ||
3617 | if (!s) | |
3618 | return -EINVAL; | |
3619 | ||
3620 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
3621 | n = 16; | |
3622 | ||
3623 | for(i = 0 ; i < n; i++) { | |
3624 | res = thermal_get_sensor(i, &s->temp[i]); | |
3625 | if (res) | |
3626 | return res; | |
3627 | } | |
3628 | ||
3629 | return n; | |
3630 | } | |
f74a27d4 | 3631 | |
2c37aa4e HMH |
3632 | /* sysfs temp##_input -------------------------------------------------- */ |
3633 | ||
3634 | static ssize_t thermal_temp_input_show(struct device *dev, | |
3635 | struct device_attribute *attr, | |
3636 | char *buf) | |
3637 | { | |
3638 | struct sensor_device_attribute *sensor_attr = | |
3639 | to_sensor_dev_attr(attr); | |
3640 | int idx = sensor_attr->index; | |
3641 | s32 value; | |
3642 | int res; | |
3643 | ||
3644 | res = thermal_get_sensor(idx, &value); | |
3645 | if (res) | |
3646 | return res; | |
3647 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
3648 | return -ENXIO; | |
3649 | ||
3650 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
3651 | } | |
3652 | ||
3653 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
3654 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB) | |
3655 | ||
3656 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
3657 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
3658 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
3659 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
3660 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
3661 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
3662 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
3663 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
3664 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
3665 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
3666 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
3667 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
3668 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
3669 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
3670 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
3671 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
3672 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
3673 | }; | |
3674 | ||
3675 | #define THERMAL_ATTRS(X) \ | |
3676 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
3677 | ||
3678 | static struct attribute *thermal_temp_input_attr[] = { | |
3679 | THERMAL_ATTRS(8), | |
3680 | THERMAL_ATTRS(9), | |
3681 | THERMAL_ATTRS(10), | |
3682 | THERMAL_ATTRS(11), | |
3683 | THERMAL_ATTRS(12), | |
3684 | THERMAL_ATTRS(13), | |
3685 | THERMAL_ATTRS(14), | |
3686 | THERMAL_ATTRS(15), | |
3687 | THERMAL_ATTRS(0), | |
3688 | THERMAL_ATTRS(1), | |
3689 | THERMAL_ATTRS(2), | |
3690 | THERMAL_ATTRS(3), | |
3691 | THERMAL_ATTRS(4), | |
3692 | THERMAL_ATTRS(5), | |
3693 | THERMAL_ATTRS(6), | |
3694 | THERMAL_ATTRS(7), | |
3695 | NULL | |
3696 | }; | |
3697 | ||
3698 | static const struct attribute_group thermal_temp_input16_group = { | |
3699 | .attrs = thermal_temp_input_attr | |
3700 | }; | |
3701 | ||
3702 | static const struct attribute_group thermal_temp_input8_group = { | |
3703 | .attrs = &thermal_temp_input_attr[8] | |
3704 | }; | |
3705 | ||
3706 | #undef THERMAL_SENSOR_ATTR_TEMP | |
3707 | #undef THERMAL_ATTRS | |
3708 | ||
3709 | /* --------------------------------------------------------------------- */ | |
3710 | ||
a5763f22 | 3711 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3712 | { |
60eb0b35 HMH |
3713 | u8 t, ta1, ta2; |
3714 | int i; | |
5fba344c | 3715 | int acpi_tmp7; |
2c37aa4e | 3716 | int res; |
5fba344c | 3717 | |
fe08bc4b HMH |
3718 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
3719 | ||
5fba344c | 3720 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 3721 | |
3d6f99ca | 3722 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
3723 | /* |
3724 | * Direct EC access mode: sensors at registers | |
3725 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
3726 | * non-implemented, thermal sensors return 0x80 when | |
3727 | * not available | |
3728 | */ | |
78f81cc4 | 3729 | |
60eb0b35 HMH |
3730 | ta1 = ta2 = 0; |
3731 | for (i = 0; i < 8; i++) { | |
04cc862c | 3732 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
3733 | ta1 |= t; |
3734 | } else { | |
3735 | ta1 = 0; | |
3736 | break; | |
3737 | } | |
04cc862c | 3738 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
3739 | ta2 |= t; |
3740 | } else { | |
3741 | ta1 = 0; | |
3742 | break; | |
3743 | } | |
3744 | } | |
3745 | if (ta1 == 0) { | |
3746 | /* This is sheer paranoia, but we handle it anyway */ | |
3747 | if (acpi_tmp7) { | |
e0c7dfe7 | 3748 | printk(TPACPI_ERR |
60eb0b35 HMH |
3749 | "ThinkPad ACPI EC access misbehaving, " |
3750 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 3751 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 3752 | } else { |
e0c7dfe7 | 3753 | printk(TPACPI_ERR |
60eb0b35 HMH |
3754 | "ThinkPad ACPI EC access misbehaving, " |
3755 | "disabling thermal sensors access\n"); | |
efa27145 | 3756 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
3757 | } |
3758 | } else { | |
3759 | thermal_read_mode = | |
3760 | (ta2 != 0) ? | |
efa27145 | 3761 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
3762 | } |
3763 | } else if (acpi_tmp7) { | |
a26f878a HMH |
3764 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
3765 | /* 600e/x, 770e, 770x */ | |
efa27145 | 3766 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
3767 | } else { |
3768 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 3769 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
3770 | } |
3771 | } else { | |
3772 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 3773 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 3774 | } |
78f81cc4 | 3775 | |
fe08bc4b HMH |
3776 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
3777 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
3778 | thermal_read_mode); | |
3779 | ||
2c37aa4e HMH |
3780 | switch(thermal_read_mode) { |
3781 | case TPACPI_THERMAL_TPEC_16: | |
7fd40029 | 3782 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3783 | &thermal_temp_input16_group); |
3784 | if (res) | |
3785 | return res; | |
3786 | break; | |
3787 | case TPACPI_THERMAL_TPEC_8: | |
3788 | case TPACPI_THERMAL_ACPI_TMP07: | |
3789 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 3790 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3791 | &thermal_temp_input8_group); |
3792 | if (res) | |
3793 | return res; | |
3794 | break; | |
3795 | case TPACPI_THERMAL_NONE: | |
3796 | default: | |
3797 | return 1; | |
3798 | } | |
3799 | ||
3800 | return 0; | |
3801 | } | |
3802 | ||
3803 | static void thermal_exit(void) | |
3804 | { | |
3805 | switch(thermal_read_mode) { | |
3806 | case TPACPI_THERMAL_TPEC_16: | |
7fd40029 | 3807 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3808 | &thermal_temp_input16_group); |
3809 | break; | |
3810 | case TPACPI_THERMAL_TPEC_8: | |
3811 | case TPACPI_THERMAL_ACPI_TMP07: | |
3812 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 3813 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3814 | &thermal_temp_input16_group); |
3815 | break; | |
3816 | case TPACPI_THERMAL_NONE: | |
3817 | default: | |
3818 | break; | |
3819 | } | |
78f81cc4 BD |
3820 | } |
3821 | ||
a26f878a HMH |
3822 | static int thermal_read(char *p) |
3823 | { | |
3824 | int len = 0; | |
3825 | int n, i; | |
3826 | struct ibm_thermal_sensors_struct t; | |
3827 | ||
3828 | n = thermal_get_sensors(&t); | |
3829 | if (unlikely(n < 0)) | |
3830 | return n; | |
3831 | ||
3832 | len += sprintf(p + len, "temperatures:\t"); | |
3833 | ||
3834 | if (n > 0) { | |
3835 | for (i = 0; i < (n - 1); i++) | |
3836 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
3837 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
3838 | } else | |
3839 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
3840 | |
3841 | return len; | |
3842 | } | |
3843 | ||
a5763f22 HMH |
3844 | static struct ibm_struct thermal_driver_data = { |
3845 | .name = "thermal", | |
3846 | .read = thermal_read, | |
2c37aa4e | 3847 | .exit = thermal_exit, |
a5763f22 HMH |
3848 | }; |
3849 | ||
56b6aeb0 HMH |
3850 | /************************************************************************* |
3851 | * EC Dump subdriver | |
3852 | */ | |
3853 | ||
78f81cc4 BD |
3854 | static u8 ecdump_regs[256]; |
3855 | ||
3856 | static int ecdump_read(char *p) | |
3857 | { | |
3858 | int len = 0; | |
3859 | int i, j; | |
3860 | u8 v; | |
3861 | ||
3862 | len += sprintf(p + len, "EC " | |
3863 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
3864 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
3865 | for (i = 0; i < 256; i += 16) { | |
3866 | len += sprintf(p + len, "EC 0x%02x:", i); | |
3867 | for (j = 0; j < 16; j++) { | |
3868 | if (!acpi_ec_read(i + j, &v)) | |
3869 | break; | |
3870 | if (v != ecdump_regs[i + j]) | |
3871 | len += sprintf(p + len, " *%02x", v); | |
3872 | else | |
3873 | len += sprintf(p + len, " %02x", v); | |
3874 | ecdump_regs[i + j] = v; | |
3875 | } | |
3876 | len += sprintf(p + len, "\n"); | |
3877 | if (j != 16) | |
3878 | break; | |
3879 | } | |
3880 | ||
3881 | /* These are way too dangerous to advertise openly... */ | |
3882 | #if 0 | |
3883 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
3884 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
3885 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
3886 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
3887 | #endif | |
3888 | return len; | |
3889 | } | |
3890 | ||
3891 | static int ecdump_write(char *buf) | |
3892 | { | |
3893 | char *cmd; | |
3894 | int i, v; | |
3895 | ||
3896 | while ((cmd = next_cmd(&buf))) { | |
3897 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
3898 | /* i and v set */ | |
3899 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
3900 | /* i and v set */ | |
3901 | } else | |
3902 | return -EINVAL; | |
3903 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
3904 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
3905 | return -EIO; |
3906 | } else | |
3907 | return -EINVAL; | |
3908 | } | |
3909 | ||
3910 | return 0; | |
78f81cc4 BD |
3911 | } |
3912 | ||
a5763f22 HMH |
3913 | static struct ibm_struct ecdump_driver_data = { |
3914 | .name = "ecdump", | |
3915 | .read = ecdump_read, | |
3916 | .write = ecdump_write, | |
92641177 | 3917 | .flags.experimental = 1, |
a5763f22 HMH |
3918 | }; |
3919 | ||
56b6aeb0 HMH |
3920 | /************************************************************************* |
3921 | * Backlight/brightness subdriver | |
3922 | */ | |
3923 | ||
f74a27d4 HMH |
3924 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
3925 | ||
94954cc6 | 3926 | static struct backlight_device *ibm_backlight_device; |
f74a27d4 HMH |
3927 | static int brightness_offset = 0x31; |
3928 | static int brightness_mode; | |
3929 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ | |
3930 | ||
b21a15f6 | 3931 | static struct mutex brightness_mutex; |
56b6aeb0 | 3932 | |
b21a15f6 HMH |
3933 | /* |
3934 | * ThinkPads can read brightness from two places: EC 0x31, or | |
3935 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
3936 | */ | |
3937 | static int brightness_get(struct backlight_device *bd) | |
3938 | { | |
3939 | u8 lec = 0, lcmos = 0, level = 0; | |
3940 | ||
3941 | if (brightness_mode & 1) { | |
3942 | if (!acpi_ec_read(brightness_offset, &lec)) | |
3943 | return -EIO; | |
3944 | lec &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
3945 | level = lec; | |
3946 | }; | |
3947 | if (brightness_mode & 2) { | |
3948 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
3949 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
3950 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
3951 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; | |
3952 | level = lcmos; | |
3953 | } | |
3954 | ||
3955 | if (brightness_mode == 3 && lec != lcmos) { | |
e0c7dfe7 | 3956 | printk(TPACPI_ERR |
b21a15f6 HMH |
3957 | "CMOS NVRAM (%u) and EC (%u) do not agree " |
3958 | "on display brightness level\n", | |
3959 | (unsigned int) lcmos, | |
3960 | (unsigned int) lec); | |
3961 | return -EIO; | |
3962 | } | |
3963 | ||
3964 | return level; | |
3965 | } | |
3966 | ||
3967 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
3968 | static int brightness_set(int value) | |
3969 | { | |
3970 | int cmos_cmd, inc, i, res; | |
3971 | int current_value; | |
3972 | ||
3973 | if (value > ((tp_features.bright_16levels)? 15 : 7)) | |
3974 | return -EINVAL; | |
3975 | ||
3976 | res = mutex_lock_interruptible(&brightness_mutex); | |
3977 | if (res < 0) | |
3978 | return res; | |
3979 | ||
3980 | current_value = brightness_get(NULL); | |
3981 | if (current_value < 0) { | |
3982 | res = current_value; | |
3983 | goto errout; | |
3984 | } | |
3985 | ||
3986 | cmos_cmd = value > current_value ? | |
3987 | TP_CMOS_BRIGHTNESS_UP : | |
3988 | TP_CMOS_BRIGHTNESS_DOWN; | |
3989 | inc = (value > current_value)? 1 : -1; | |
3990 | ||
3991 | res = 0; | |
3992 | for (i = current_value; i != value; i += inc) { | |
3993 | if ((brightness_mode & 2) && | |
3994 | issue_thinkpad_cmos_command(cmos_cmd)) { | |
3995 | res = -EIO; | |
3996 | goto errout; | |
3997 | } | |
3998 | if ((brightness_mode & 1) && | |
3999 | !acpi_ec_write(brightness_offset, i + inc)) { | |
4000 | res = -EIO; | |
4001 | goto errout;; | |
4002 | } | |
4003 | } | |
4004 | ||
4005 | errout: | |
4006 | mutex_unlock(&brightness_mutex); | |
4007 | return res; | |
4008 | } | |
4009 | ||
4010 | /* sysfs backlight class ----------------------------------------------- */ | |
4011 | ||
4012 | static int brightness_update_status(struct backlight_device *bd) | |
4013 | { | |
4014 | /* it is the backlight class's job (caller) to handle | |
4015 | * EINTR and other errors properly */ | |
4016 | return brightness_set( | |
4017 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
4018 | bd->props.power == FB_BLANK_UNBLANK) ? | |
4019 | bd->props.brightness : 0); | |
4020 | } | |
4021 | ||
4022 | static struct backlight_ops ibm_backlight_data = { | |
4023 | .get_brightness = brightness_get, | |
56b6aeb0 HMH |
4024 | .update_status = brightness_update_status, |
4025 | }; | |
4026 | ||
b21a15f6 | 4027 | /* --------------------------------------------------------------------- */ |
f432255e | 4028 | |
a3f104c0 HMH |
4029 | static int __init tpacpi_query_bcll_levels(acpi_handle handle) |
4030 | { | |
4031 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
4032 | union acpi_object *obj; | |
4033 | int rc; | |
4034 | ||
4035 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
4036 | obj = (union acpi_object *)buffer.pointer; | |
4037 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
e0c7dfe7 HMH |
4038 | printk(TPACPI_ERR "Unknown BCLL data, " |
4039 | "please report this to %s\n", TPACPI_MAIL); | |
a3f104c0 HMH |
4040 | rc = 0; |
4041 | } else { | |
4042 | rc = obj->package.count; | |
4043 | } | |
4044 | } else { | |
4045 | return 0; | |
4046 | } | |
4047 | ||
4048 | kfree(buffer.pointer); | |
4049 | return rc; | |
4050 | } | |
4051 | ||
4052 | static acpi_status __init brightness_find_bcll(acpi_handle handle, u32 lvl, | |
4053 | void *context, void **rv) | |
4054 | { | |
4055 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
4056 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
4057 | ||
4058 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
4059 | !strncmp("BCLL", name, sizeof(name) - 1)) { | |
4060 | if (tpacpi_query_bcll_levels(handle) == 16) { | |
4061 | *rv = handle; | |
4062 | return AE_CTRL_TERMINATE; | |
4063 | } else { | |
4064 | return AE_OK; | |
4065 | } | |
4066 | } else { | |
4067 | return AE_OK; | |
4068 | } | |
4069 | } | |
4070 | ||
4071 | static int __init brightness_check_levels(void) | |
4072 | { | |
4073 | int status; | |
4074 | void *found_node = NULL; | |
4075 | ||
4076 | if (!vid_handle) { | |
e0c7dfe7 | 4077 | TPACPI_ACPIHANDLE_INIT(vid); |
a3f104c0 HMH |
4078 | } |
4079 | if (!vid_handle) | |
4080 | return 0; | |
4081 | ||
4082 | /* Search for a BCLL package with 16 levels */ | |
4083 | status = acpi_walk_namespace(ACPI_TYPE_PACKAGE, vid_handle, 3, | |
4084 | brightness_find_bcll, NULL, &found_node); | |
4085 | ||
4086 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
4087 | } | |
4088 | ||
e11e211a HMH |
4089 | static acpi_status __init brightness_find_bcl(acpi_handle handle, u32 lvl, |
4090 | void *context, void **rv) | |
4091 | { | |
4092 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
4093 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
4094 | ||
4095 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
4096 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
4097 | *rv = handle; | |
4098 | return AE_CTRL_TERMINATE; | |
4099 | } else { | |
4100 | return AE_OK; | |
4101 | } | |
4102 | } | |
4103 | ||
4104 | static int __init brightness_check_std_acpi_support(void) | |
4105 | { | |
4106 | int status; | |
4107 | void *found_node = NULL; | |
4108 | ||
4109 | if (!vid_handle) { | |
e0c7dfe7 | 4110 | TPACPI_ACPIHANDLE_INIT(vid); |
e11e211a HMH |
4111 | } |
4112 | if (!vid_handle) | |
4113 | return 0; | |
4114 | ||
4115 | /* Search for a _BCL method, but don't execute it */ | |
4116 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
4117 | brightness_find_bcl, NULL, &found_node); | |
4118 | ||
4119 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
4120 | } | |
4121 | ||
a5763f22 | 4122 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
4123 | { |
4124 | int b; | |
4125 | ||
fe08bc4b HMH |
4126 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
4127 | ||
f432255e HMH |
4128 | mutex_init(&brightness_mutex); |
4129 | ||
87cc537a HMH |
4130 | if (!brightness_enable) { |
4131 | dbg_printk(TPACPI_DBG_INIT, | |
4132 | "brightness support disabled by module parameter\n"); | |
4133 | return 1; | |
e11e211a HMH |
4134 | } else if (brightness_enable > 1) { |
4135 | if (brightness_check_std_acpi_support()) { | |
e0c7dfe7 | 4136 | printk(TPACPI_NOTICE |
e11e211a HMH |
4137 | "standard ACPI backlight interface available, not loading native one...\n"); |
4138 | return 1; | |
4139 | } | |
87cc537a HMH |
4140 | } |
4141 | ||
24d3b774 HMH |
4142 | if (!brightness_mode) { |
4143 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
4144 | brightness_mode = 2; | |
4145 | else | |
4146 | brightness_mode = 3; | |
4147 | ||
4148 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
4149 | brightness_mode); | |
4150 | } | |
4151 | ||
4152 | if (brightness_mode > 3) | |
4153 | return -EINVAL; | |
4154 | ||
a3f104c0 HMH |
4155 | tp_features.bright_16levels = |
4156 | thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO && | |
4157 | brightness_check_levels(); | |
4158 | ||
56b6aeb0 HMH |
4159 | b = brightness_get(NULL); |
4160 | if (b < 0) | |
24d3b774 | 4161 | return 1; |
56b6aeb0 | 4162 | |
a3f104c0 | 4163 | if (tp_features.bright_16levels) |
e0c7dfe7 | 4164 | printk(TPACPI_INFO "detected a 16-level brightness capable ThinkPad\n"); |
a3f104c0 | 4165 | |
7d5a015e HMH |
4166 | ibm_backlight_device = backlight_device_register( |
4167 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
4168 | &ibm_backlight_data); | |
56b6aeb0 | 4169 | if (IS_ERR(ibm_backlight_device)) { |
e0c7dfe7 | 4170 | printk(TPACPI_ERR "Could not register backlight device\n"); |
56b6aeb0 HMH |
4171 | return PTR_ERR(ibm_backlight_device); |
4172 | } | |
fe08bc4b | 4173 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 4174 | |
a3f104c0 HMH |
4175 | ibm_backlight_device->props.max_brightness = |
4176 | (tp_features.bright_16levels)? 15 : 7; | |
56b6aeb0 HMH |
4177 | ibm_backlight_device->props.brightness = b; |
4178 | backlight_update_status(ibm_backlight_device); | |
4179 | ||
4180 | return 0; | |
4181 | } | |
4182 | ||
4183 | static void brightness_exit(void) | |
4184 | { | |
4185 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
4186 | vdbg_printk(TPACPI_DBG_EXIT, |
4187 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
4188 | backlight_device_unregister(ibm_backlight_device); |
4189 | ibm_backlight_device = NULL; | |
4190 | } | |
4191 | } | |
4192 | ||
56b6aeb0 HMH |
4193 | static int brightness_read(char *p) |
4194 | { | |
4195 | int len = 0; | |
4196 | int level; | |
4197 | ||
4198 | if ((level = brightness_get(NULL)) < 0) { | |
4199 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4200 | } else { | |
a3f104c0 | 4201 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
4202 | len += sprintf(p + len, "commands:\tup, down\n"); |
4203 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
4204 | " (<level> is 0-%d)\n", |
4205 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
4206 | } |
4207 | ||
4208 | return len; | |
4209 | } | |
4210 | ||
8acb0250 HM |
4211 | static int brightness_write(char *buf) |
4212 | { | |
4213 | int level; | |
4273af8d | 4214 | int rc; |
1da177e4 | 4215 | char *cmd; |
a3f104c0 | 4216 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 4217 | |
4273af8d HMH |
4218 | level = brightness_get(NULL); |
4219 | if (level < 0) | |
4220 | return level; | |
78f81cc4 | 4221 | |
4273af8d | 4222 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 4223 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
4224 | if (level < max_level) |
4225 | level++; | |
78f81cc4 | 4226 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
4227 | if (level > 0) |
4228 | level--; | |
4229 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
4230 | level >= 0 && level <= max_level) { | |
4231 | /* new level set */ | |
78f81cc4 BD |
4232 | } else |
4233 | return -EINVAL; | |
78f81cc4 BD |
4234 | } |
4235 | ||
4273af8d HMH |
4236 | /* |
4237 | * Now we know what the final level should be, so we try to set it. | |
4238 | * Doing it this way makes the syscall restartable in case of EINTR | |
4239 | */ | |
4240 | rc = brightness_set(level); | |
4241 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
4242 | } |
4243 | ||
a5763f22 HMH |
4244 | static struct ibm_struct brightness_driver_data = { |
4245 | .name = "brightness", | |
4246 | .read = brightness_read, | |
4247 | .write = brightness_write, | |
4248 | .exit = brightness_exit, | |
4249 | }; | |
4250 | ||
56b6aeb0 HMH |
4251 | /************************************************************************* |
4252 | * Volume subdriver | |
4253 | */ | |
fb87a811 | 4254 | |
f74a27d4 HMH |
4255 | static int volume_offset = 0x30; |
4256 | ||
78f81cc4 BD |
4257 | static int volume_read(char *p) |
4258 | { | |
4259 | int len = 0; | |
4260 | u8 level; | |
4261 | ||
4262 | if (!acpi_ec_read(volume_offset, &level)) { | |
4263 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
4264 | } else { | |
4265 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
4266 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
4267 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
4268 | len += sprintf(p + len, "commands:\tlevel <level>" | |
4269 | " (<level> is 0-15)\n"); | |
4270 | } | |
4271 | ||
4272 | return len; | |
4273 | } | |
4274 | ||
78f81cc4 BD |
4275 | static int volume_write(char *buf) |
4276 | { | |
4277 | int cmos_cmd, inc, i; | |
4278 | u8 level, mute; | |
4279 | int new_level, new_mute; | |
4280 | char *cmd; | |
4281 | ||
4282 | while ((cmd = next_cmd(&buf))) { | |
4283 | if (!acpi_ec_read(volume_offset, &level)) | |
4284 | return -EIO; | |
4285 | new_mute = mute = level & 0x40; | |
4286 | new_level = level = level & 0xf; | |
4287 | ||
4288 | if (strlencmp(cmd, "up") == 0) { | |
4289 | if (mute) | |
4290 | new_mute = 0; | |
4291 | else | |
4292 | new_level = level == 15 ? 15 : level + 1; | |
4293 | } else if (strlencmp(cmd, "down") == 0) { | |
4294 | if (mute) | |
4295 | new_mute = 0; | |
4296 | else | |
4297 | new_level = level == 0 ? 0 : level - 1; | |
4298 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
4299 | new_level >= 0 && new_level <= 15) { | |
4300 | /* new_level set */ | |
4301 | } else if (strlencmp(cmd, "mute") == 0) { | |
4302 | new_mute = 0x40; | |
1da177e4 LT |
4303 | } else |
4304 | return -EINVAL; | |
4305 | ||
78f81cc4 | 4306 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 4307 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
4308 | inc = new_level > level ? 1 : -1; |
4309 | ||
c9bea99c | 4310 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4311 | !acpi_ec_write(volume_offset, level))) |
4312 | return -EIO; | |
4313 | ||
4314 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 4315 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4316 | !acpi_ec_write(volume_offset, i + inc)) |
4317 | return -EIO; | |
4318 | ||
c9bea99c | 4319 | if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
4320 | !acpi_ec_write(volume_offset, |
4321 | new_level + mute))) | |
4322 | return -EIO; | |
4323 | } | |
4324 | ||
4325 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 4326 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 | 4327 | |
c9bea99c | 4328 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
4329 | !acpi_ec_write(volume_offset, level + new_mute)) |
4330 | return -EIO; | |
4331 | } | |
4332 | } | |
4333 | ||
4334 | return 0; | |
4335 | } | |
4336 | ||
a5763f22 HMH |
4337 | static struct ibm_struct volume_driver_data = { |
4338 | .name = "volume", | |
4339 | .read = volume_read, | |
4340 | .write = volume_write, | |
4341 | }; | |
56b6aeb0 HMH |
4342 | |
4343 | /************************************************************************* | |
4344 | * Fan subdriver | |
4345 | */ | |
4346 | ||
4347 | /* | |
4348 | * FAN ACCESS MODES | |
4349 | * | |
efa27145 | 4350 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
4351 | * ACPI GFAN method: returns fan level |
4352 | * | |
efa27145 | 4353 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 4354 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 4355 | * |
efa27145 | 4356 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4357 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
4358 | * | |
f51d1a39 HMH |
4359 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
4360 | * it for writing. | |
56b6aeb0 | 4361 | * |
efa27145 | 4362 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
4363 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
4364 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
4365 | * |
4366 | * Fan speed changes of any sort (including those caused by the | |
4367 | * disengaged mode) are usually done slowly by the firmware as the | |
4368 | * maximum ammount of fan duty cycle change per second seems to be | |
4369 | * limited. | |
4370 | * | |
4371 | * Reading is not available if GFAN exists. | |
4372 | * Writing is not available if SFAN exists. | |
4373 | * | |
4374 | * Bits | |
4375 | * 7 automatic mode engaged; | |
4376 | * (default operation mode of the ThinkPad) | |
4377 | * fan level is ignored in this mode. | |
f51d1a39 | 4378 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 4379 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
4380 | * the tachometer while the fan controller ramps up |
4381 | * the speed (which can take up to a few *minutes*). | |
4382 | * Speeds up fan to 100% duty-cycle, which is far above | |
4383 | * the standard RPM levels. It is not impossible that | |
4384 | * it could cause hardware damage. | |
56b6aeb0 HMH |
4385 | * 5-3 unused in some models. Extra bits for fan level |
4386 | * in others, but still useless as all values above | |
4387 | * 7 map to the same speed as level 7 in these models. | |
4388 | * 2-0 fan level (0..7 usually) | |
4389 | * 0x00 = stop | |
4390 | * 0x07 = max (set when temperatures critical) | |
4391 | * Some ThinkPads may have other levels, see | |
efa27145 | 4392 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
4393 | * |
4394 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
4395 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
4396 | * does so, its initial value is meaningless (0x07). | |
4397 | * | |
4398 | * For firmware bugs, refer to: | |
4399 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4400 | * | |
4401 | * ---- | |
4402 | * | |
4403 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
4404 | * Main fan tachometer reading (in RPM) | |
4405 | * | |
4406 | * This register is present on all ThinkPads with a new-style EC, and | |
4407 | * it is known not to be present on the A21m/e, and T22, as there is | |
4408 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
4409 | * ThinkPads from this same time period (and earlier) probably lack the | |
4410 | * tachometer as well. | |
4411 | * | |
4412 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
4413 | * was never fixed by IBM to report the EC firmware version string | |
4414 | * probably support the tachometer (like the early X models), so | |
4415 | * detecting it is quite hard. We need more data to know for sure. | |
4416 | * | |
4417 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
4418 | * might result. | |
4419 | * | |
f51d1a39 HMH |
4420 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
4421 | * mode. | |
56b6aeb0 HMH |
4422 | * |
4423 | * For firmware bugs, refer to: | |
4424 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
4425 | * | |
efa27145 | 4426 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
4427 | * ThinkPad X31, X40, X41. Not available in the X60. |
4428 | * | |
4429 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
4430 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
4431 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
4432 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
4433 | * | |
4434 | * The speeds are stored on handles | |
4435 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
4436 | * | |
4437 | * There are three default speed sets, acessible as handles: | |
4438 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
4439 | * | |
4440 | * ACPI DSDT switches which set is in use depending on various | |
4441 | * factors. | |
4442 | * | |
efa27145 | 4443 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
4444 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
4445 | * but the ACPI tables just mention level 7. | |
4446 | */ | |
4447 | ||
f74a27d4 HMH |
4448 | enum { /* Fan control constants */ |
4449 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
4450 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
4451 | * 0x84 must be read before 0x85 */ | |
4452 | ||
4453 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
4454 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
4455 | ||
4456 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
4457 | }; | |
4458 | ||
4459 | enum fan_status_access_mode { | |
4460 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
4461 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
4462 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
4463 | }; | |
4464 | ||
4465 | enum fan_control_access_mode { | |
4466 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
4467 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
4468 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
4469 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
4470 | }; | |
4471 | ||
4472 | enum fan_control_commands { | |
4473 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
4474 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
4475 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
4476 | * and also watchdog cmd */ | |
4477 | }; | |
4478 | ||
4479 | static int fan_control_allowed; | |
4480 | ||
69ba91cb HMH |
4481 | static enum fan_status_access_mode fan_status_access_mode; |
4482 | static enum fan_control_access_mode fan_control_access_mode; | |
4483 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 4484 | |
778b4d74 | 4485 | static u8 fan_control_initial_status; |
fe98a52c | 4486 | static u8 fan_control_desired_level; |
f74a27d4 HMH |
4487 | static int fan_watchdog_maxinterval; |
4488 | ||
4489 | static struct mutex fan_mutex; | |
778b4d74 | 4490 | |
25c68a33 | 4491 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 4492 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 4493 | |
e0c7dfe7 HMH |
4494 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
4495 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
4496 | "\\FSPD", /* 600e/x, 770e, 770x */ |
4497 | ); /* all others */ | |
e0c7dfe7 | 4498 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
4499 | "JFNS", /* 770x-JL */ |
4500 | ); /* all others */ | |
4501 | ||
fe98a52c | 4502 | /* |
b21a15f6 | 4503 | * Call with fan_mutex held |
fe98a52c | 4504 | */ |
b21a15f6 | 4505 | static void fan_update_desired_level(u8 status) |
fe98a52c | 4506 | { |
b21a15f6 HMH |
4507 | if ((status & |
4508 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
4509 | if (status > 7) | |
4510 | fan_control_desired_level = 7; | |
4511 | else | |
4512 | fan_control_desired_level = status; | |
4513 | } | |
4514 | } | |
fe98a52c | 4515 | |
b21a15f6 HMH |
4516 | static int fan_get_status(u8 *status) |
4517 | { | |
4518 | u8 s; | |
fe98a52c | 4519 | |
b21a15f6 HMH |
4520 | /* TODO: |
4521 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 4522 | |
b21a15f6 HMH |
4523 | switch (fan_status_access_mode) { |
4524 | case TPACPI_FAN_RD_ACPI_GFAN: | |
4525 | /* 570, 600e/x, 770e, 770x */ | |
fe98a52c | 4526 | |
b21a15f6 HMH |
4527 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
4528 | return -EIO; | |
fe98a52c | 4529 | |
b21a15f6 HMH |
4530 | if (likely(status)) |
4531 | *status = s & 0x07; | |
fe98a52c | 4532 | |
b21a15f6 HMH |
4533 | break; |
4534 | ||
4535 | case TPACPI_FAN_RD_TPEC: | |
4536 | /* all except 570, 600e/x, 770e, 770x */ | |
4537 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
4538 | return -EIO; | |
4539 | ||
4540 | if (likely(status)) | |
4541 | *status = s; | |
fe98a52c | 4542 | |
fe98a52c | 4543 | break; |
b21a15f6 | 4544 | |
fe98a52c | 4545 | default: |
b21a15f6 | 4546 | return -ENXIO; |
fe98a52c HMH |
4547 | } |
4548 | ||
b21a15f6 HMH |
4549 | return 0; |
4550 | } | |
fe98a52c | 4551 | |
b21a15f6 HMH |
4552 | static int fan_get_status_safe(u8 *status) |
4553 | { | |
4554 | int rc; | |
4555 | u8 s; | |
fe98a52c | 4556 | |
b21a15f6 HMH |
4557 | if (mutex_lock_interruptible(&fan_mutex)) |
4558 | return -ERESTARTSYS; | |
4559 | rc = fan_get_status(&s); | |
4560 | if (!rc) | |
4561 | fan_update_desired_level(s); | |
4562 | mutex_unlock(&fan_mutex); | |
fe98a52c | 4563 | |
b21a15f6 HMH |
4564 | if (status) |
4565 | *status = s; | |
fe98a52c | 4566 | |
b21a15f6 HMH |
4567 | return rc; |
4568 | } | |
4569 | ||
4570 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 4571 | { |
b21a15f6 | 4572 | u8 hi, lo; |
fe98a52c | 4573 | |
b21a15f6 HMH |
4574 | switch (fan_status_access_mode) { |
4575 | case TPACPI_FAN_RD_TPEC: | |
4576 | /* all except 570, 600e/x, 770e, 770x */ | |
4577 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || | |
4578 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
4579 | return -EIO; | |
fe98a52c | 4580 | |
b21a15f6 HMH |
4581 | if (likely(speed)) |
4582 | *speed = (hi << 8) | lo; | |
fe98a52c | 4583 | |
b21a15f6 | 4584 | break; |
fe98a52c | 4585 | |
b21a15f6 HMH |
4586 | default: |
4587 | return -ENXIO; | |
4588 | } | |
fe98a52c | 4589 | |
b21a15f6 | 4590 | return 0; |
fe98a52c HMH |
4591 | } |
4592 | ||
b21a15f6 | 4593 | static int fan_set_level(int level) |
fe98a52c | 4594 | { |
b21a15f6 HMH |
4595 | if (!fan_control_allowed) |
4596 | return -EPERM; | |
fe98a52c | 4597 | |
b21a15f6 HMH |
4598 | switch (fan_control_access_mode) { |
4599 | case TPACPI_FAN_WR_ACPI_SFAN: | |
4600 | if (level >= 0 && level <= 7) { | |
4601 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
4602 | return -EIO; | |
4603 | } else | |
4604 | return -EINVAL; | |
4605 | break; | |
fe98a52c | 4606 | |
b21a15f6 HMH |
4607 | case TPACPI_FAN_WR_ACPI_FANS: |
4608 | case TPACPI_FAN_WR_TPEC: | |
4609 | if ((level != TP_EC_FAN_AUTO) && | |
4610 | (level != TP_EC_FAN_FULLSPEED) && | |
4611 | ((level < 0) || (level > 7))) | |
4612 | return -EINVAL; | |
fe98a52c | 4613 | |
b21a15f6 HMH |
4614 | /* safety net should the EC not support AUTO |
4615 | * or FULLSPEED mode bits and just ignore them */ | |
4616 | if (level & TP_EC_FAN_FULLSPEED) | |
4617 | level |= 7; /* safety min speed 7 */ | |
4618 | else if (level & TP_EC_FAN_FULLSPEED) | |
4619 | level |= 4; /* safety min speed 4 */ | |
fe98a52c | 4620 | |
b21a15f6 HMH |
4621 | if (!acpi_ec_write(fan_status_offset, level)) |
4622 | return -EIO; | |
4623 | else | |
4624 | tp_features.fan_ctrl_status_undef = 0; | |
4625 | break; | |
fe98a52c | 4626 | |
b21a15f6 HMH |
4627 | default: |
4628 | return -ENXIO; | |
4629 | } | |
4630 | return 0; | |
fe98a52c HMH |
4631 | } |
4632 | ||
b21a15f6 | 4633 | static int fan_set_level_safe(int level) |
fe98a52c | 4634 | { |
b21a15f6 | 4635 | int rc; |
fe98a52c | 4636 | |
b21a15f6 HMH |
4637 | if (!fan_control_allowed) |
4638 | return -EPERM; | |
fe98a52c | 4639 | |
b21a15f6 HMH |
4640 | if (mutex_lock_interruptible(&fan_mutex)) |
4641 | return -ERESTARTSYS; | |
fe98a52c | 4642 | |
b21a15f6 HMH |
4643 | if (level == TPACPI_FAN_LAST_LEVEL) |
4644 | level = fan_control_desired_level; | |
fe98a52c | 4645 | |
b21a15f6 HMH |
4646 | rc = fan_set_level(level); |
4647 | if (!rc) | |
4648 | fan_update_desired_level(level); | |
4649 | ||
4650 | mutex_unlock(&fan_mutex); | |
4651 | return rc; | |
fe98a52c HMH |
4652 | } |
4653 | ||
b21a15f6 | 4654 | static int fan_set_enable(void) |
fe98a52c | 4655 | { |
b21a15f6 HMH |
4656 | u8 s; |
4657 | int rc; | |
fe98a52c | 4658 | |
ecf2a80a HMH |
4659 | if (!fan_control_allowed) |
4660 | return -EPERM; | |
4661 | ||
b21a15f6 HMH |
4662 | if (mutex_lock_interruptible(&fan_mutex)) |
4663 | return -ERESTARTSYS; | |
fe98a52c | 4664 | |
b21a15f6 HMH |
4665 | switch (fan_control_access_mode) { |
4666 | case TPACPI_FAN_WR_ACPI_FANS: | |
4667 | case TPACPI_FAN_WR_TPEC: | |
4668 | rc = fan_get_status(&s); | |
4669 | if (rc < 0) | |
4670 | break; | |
fe98a52c | 4671 | |
b21a15f6 HMH |
4672 | /* Don't go out of emergency fan mode */ |
4673 | if (s != 7) { | |
4674 | s &= 0x07; | |
4675 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
4676 | } | |
fe98a52c | 4677 | |
b21a15f6 HMH |
4678 | if (!acpi_ec_write(fan_status_offset, s)) |
4679 | rc = -EIO; | |
4680 | else { | |
4681 | tp_features.fan_ctrl_status_undef = 0; | |
4682 | rc = 0; | |
4683 | } | |
4684 | break; | |
fe98a52c | 4685 | |
b21a15f6 HMH |
4686 | case TPACPI_FAN_WR_ACPI_SFAN: |
4687 | rc = fan_get_status(&s); | |
4688 | if (rc < 0) | |
4689 | break; | |
fe98a52c | 4690 | |
b21a15f6 | 4691 | s &= 0x07; |
fe98a52c | 4692 | |
b21a15f6 HMH |
4693 | /* Set fan to at least level 4 */ |
4694 | s |= 4; | |
fe08bc4b | 4695 | |
b21a15f6 HMH |
4696 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
4697 | rc= -EIO; | |
4698 | else | |
4699 | rc = 0; | |
4700 | break; | |
78f81cc4 | 4701 | |
b21a15f6 HMH |
4702 | default: |
4703 | rc = -ENXIO; | |
4704 | } | |
5fba344c | 4705 | |
b21a15f6 HMH |
4706 | mutex_unlock(&fan_mutex); |
4707 | return rc; | |
69ba91cb | 4708 | } |
78f81cc4 | 4709 | |
b21a15f6 | 4710 | static int fan_set_disable(void) |
78f81cc4 | 4711 | { |
b21a15f6 | 4712 | int rc; |
c52f0aa5 | 4713 | |
b21a15f6 HMH |
4714 | if (!fan_control_allowed) |
4715 | return -EPERM; | |
78f81cc4 | 4716 | |
b21a15f6 HMH |
4717 | if (mutex_lock_interruptible(&fan_mutex)) |
4718 | return -ERESTARTSYS; | |
3ef8a609 | 4719 | |
b21a15f6 HMH |
4720 | rc = 0; |
4721 | switch (fan_control_access_mode) { | |
4722 | case TPACPI_FAN_WR_ACPI_FANS: | |
4723 | case TPACPI_FAN_WR_TPEC: | |
4724 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
4725 | rc = -EIO; | |
4726 | else { | |
4727 | fan_control_desired_level = 0; | |
4728 | tp_features.fan_ctrl_status_undef = 0; | |
4729 | } | |
3ef8a609 HMH |
4730 | break; |
4731 | ||
b21a15f6 HMH |
4732 | case TPACPI_FAN_WR_ACPI_SFAN: |
4733 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
4734 | rc = -EIO; | |
4735 | else | |
4736 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
4737 | break; |
4738 | ||
4739 | default: | |
b21a15f6 | 4740 | rc = -ENXIO; |
78f81cc4 BD |
4741 | } |
4742 | ||
fe98a52c | 4743 | |
fe98a52c | 4744 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
4745 | return rc; |
4746 | } | |
4747 | ||
b21a15f6 | 4748 | static int fan_set_speed(int speed) |
c52f0aa5 | 4749 | { |
b21a15f6 | 4750 | int rc; |
c52f0aa5 | 4751 | |
b21a15f6 HMH |
4752 | if (!fan_control_allowed) |
4753 | return -EPERM; | |
3ef8a609 | 4754 | |
b21a15f6 HMH |
4755 | if (mutex_lock_interruptible(&fan_mutex)) |
4756 | return -ERESTARTSYS; | |
c52f0aa5 | 4757 | |
b21a15f6 HMH |
4758 | rc = 0; |
4759 | switch (fan_control_access_mode) { | |
4760 | case TPACPI_FAN_WR_ACPI_FANS: | |
4761 | if (speed >= 0 && speed <= 65535) { | |
4762 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
4763 | speed, speed, speed)) | |
4764 | rc = -EIO; | |
4765 | } else | |
4766 | rc = -EINVAL; | |
c52f0aa5 HMH |
4767 | break; |
4768 | ||
4769 | default: | |
b21a15f6 | 4770 | rc = -ENXIO; |
c52f0aa5 HMH |
4771 | } |
4772 | ||
b21a15f6 HMH |
4773 | mutex_unlock(&fan_mutex); |
4774 | return rc; | |
16663a87 HMH |
4775 | } |
4776 | ||
4777 | static void fan_watchdog_reset(void) | |
4778 | { | |
94954cc6 | 4779 | static int fan_watchdog_active; |
16663a87 | 4780 | |
4985cd0a HMH |
4781 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
4782 | return; | |
4783 | ||
16663a87 HMH |
4784 | if (fan_watchdog_active) |
4785 | cancel_delayed_work(&fan_watchdog_task); | |
4786 | ||
8fef502e HMH |
4787 | if (fan_watchdog_maxinterval > 0 && |
4788 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 HMH |
4789 | fan_watchdog_active = 1; |
4790 | if (!schedule_delayed_work(&fan_watchdog_task, | |
4791 | msecs_to_jiffies(fan_watchdog_maxinterval | |
4792 | * 1000))) { | |
e0c7dfe7 | 4793 | printk(TPACPI_ERR "failed to schedule the fan watchdog, " |
16663a87 HMH |
4794 | "watchdog will not trigger\n"); |
4795 | } | |
4796 | } else | |
4797 | fan_watchdog_active = 0; | |
4798 | } | |
4799 | ||
b21a15f6 | 4800 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 4801 | { |
b21a15f6 | 4802 | int rc; |
18ad7996 | 4803 | |
b21a15f6 HMH |
4804 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
4805 | return; | |
a12095c2 | 4806 | |
e0c7dfe7 | 4807 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
4808 | rc = fan_set_enable(); |
4809 | if (rc < 0) { | |
e0c7dfe7 | 4810 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
b21a15f6 HMH |
4811 | "will try again later...\n", -rc); |
4812 | /* reschedule for later */ | |
4813 | fan_watchdog_reset(); | |
4814 | } | |
4815 | } | |
eaa7571b | 4816 | |
b21a15f6 HMH |
4817 | /* |
4818 | * SYSFS fan layout: hwmon compatible (device) | |
4819 | * | |
4820 | * pwm*_enable: | |
4821 | * 0: "disengaged" mode | |
4822 | * 1: manual mode | |
4823 | * 2: native EC "auto" mode (recommended, hardware default) | |
4824 | * | |
4825 | * pwm*: set speed in manual mode, ignored otherwise. | |
4826 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
4827 | * interpolation. | |
4828 | * | |
4829 | * fan*_input: tachometer reading, RPM | |
4830 | * | |
4831 | * | |
4832 | * SYSFS fan layout: extensions | |
4833 | * | |
4834 | * fan_watchdog (driver): | |
4835 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
4836 | */ | |
4837 | ||
4838 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
4839 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
4840 | struct device_attribute *attr, | |
4841 | char *buf) | |
4842 | { | |
4843 | int res, mode; | |
4844 | u8 status; | |
4845 | ||
4846 | res = fan_get_status_safe(&status); | |
4847 | if (res) | |
4848 | return res; | |
4849 | ||
4850 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
4851 | if (status != fan_control_initial_status) { | |
d8fd94d9 | 4852 | tp_features.fan_ctrl_status_undef = 0; |
b21a15f6 HMH |
4853 | } else { |
4854 | /* Return most likely status. In fact, it | |
4855 | * might be the only possible status */ | |
4856 | status = TP_EC_FAN_AUTO; | |
4857 | } | |
4858 | } | |
4859 | ||
4860 | if (status & TP_EC_FAN_FULLSPEED) { | |
4861 | mode = 0; | |
4862 | } else if (status & TP_EC_FAN_AUTO) { | |
4863 | mode = 2; | |
4864 | } else | |
4865 | mode = 1; | |
4866 | ||
4867 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
4868 | } | |
a12095c2 | 4869 | |
b21a15f6 HMH |
4870 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
4871 | struct device_attribute *attr, | |
4872 | const char *buf, size_t count) | |
4873 | { | |
4874 | unsigned long t; | |
4875 | int res, level; | |
4876 | ||
4877 | if (parse_strtoul(buf, 2, &t)) | |
4878 | return -EINVAL; | |
4879 | ||
4880 | switch (t) { | |
4881 | case 0: | |
4882 | level = TP_EC_FAN_FULLSPEED; | |
4883 | break; | |
4884 | case 1: | |
4885 | level = TPACPI_FAN_LAST_LEVEL; | |
4886 | break; | |
4887 | case 2: | |
4888 | level = TP_EC_FAN_AUTO; | |
4889 | break; | |
4890 | case 3: | |
4891 | /* reserved for software-controlled auto mode */ | |
4892 | return -ENOSYS; | |
18ad7996 | 4893 | default: |
b21a15f6 | 4894 | return -EINVAL; |
18ad7996 | 4895 | } |
b21a15f6 HMH |
4896 | |
4897 | res = fan_set_level_safe(level); | |
4898 | if (res == -ENXIO) | |
4899 | return -EINVAL; | |
4900 | else if (res < 0) | |
4901 | return res; | |
4902 | ||
4903 | fan_watchdog_reset(); | |
4904 | ||
4905 | return count; | |
18ad7996 HMH |
4906 | } |
4907 | ||
b21a15f6 HMH |
4908 | static struct device_attribute dev_attr_fan_pwm1_enable = |
4909 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
4910 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
4911 | ||
4912 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
4913 | static ssize_t fan_pwm1_show(struct device *dev, | |
4914 | struct device_attribute *attr, | |
4915 | char *buf) | |
fe98a52c | 4916 | { |
b21a15f6 HMH |
4917 | int res; |
4918 | u8 status; | |
fe98a52c | 4919 | |
b21a15f6 HMH |
4920 | res = fan_get_status_safe(&status); |
4921 | if (res) | |
4922 | return res; | |
ecf2a80a | 4923 | |
b21a15f6 HMH |
4924 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
4925 | if (status != fan_control_initial_status) { | |
4926 | tp_features.fan_ctrl_status_undef = 0; | |
4927 | } else { | |
4928 | status = TP_EC_FAN_AUTO; | |
4929 | } | |
4930 | } | |
fe98a52c | 4931 | |
b21a15f6 HMH |
4932 | if ((status & |
4933 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
4934 | status = fan_control_desired_level; | |
fe98a52c | 4935 | |
b21a15f6 HMH |
4936 | if (status > 7) |
4937 | status = 7; | |
fe98a52c | 4938 | |
b21a15f6 | 4939 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
4940 | } |
4941 | ||
b21a15f6 HMH |
4942 | static ssize_t fan_pwm1_store(struct device *dev, |
4943 | struct device_attribute *attr, | |
4944 | const char *buf, size_t count) | |
18ad7996 | 4945 | { |
b21a15f6 | 4946 | unsigned long s; |
1c6a334e | 4947 | int rc; |
b21a15f6 | 4948 | u8 status, newlevel; |
1c6a334e | 4949 | |
b21a15f6 HMH |
4950 | if (parse_strtoul(buf, 255, &s)) |
4951 | return -EINVAL; | |
4952 | ||
4953 | /* scale down from 0-255 to 0-7 */ | |
4954 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 4955 | |
fc589a3c HMH |
4956 | if (mutex_lock_interruptible(&fan_mutex)) |
4957 | return -ERESTARTSYS; | |
40ca9fdf | 4958 | |
b21a15f6 HMH |
4959 | rc = fan_get_status(&status); |
4960 | if (!rc && (status & | |
4961 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
4962 | rc = fan_set_level(newlevel); | |
4963 | if (rc == -ENXIO) | |
4964 | rc = -EINVAL; | |
4965 | else if (!rc) { | |
4966 | fan_update_desired_level(newlevel); | |
4967 | fan_watchdog_reset(); | |
eaa7571b | 4968 | } |
b21a15f6 | 4969 | } |
1c6a334e | 4970 | |
b21a15f6 HMH |
4971 | mutex_unlock(&fan_mutex); |
4972 | return (rc)? rc : count; | |
4973 | } | |
1c6a334e | 4974 | |
b21a15f6 HMH |
4975 | static struct device_attribute dev_attr_fan_pwm1 = |
4976 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
4977 | fan_pwm1_show, fan_pwm1_store); | |
1c6a334e | 4978 | |
b21a15f6 HMH |
4979 | /* sysfs fan fan1_input ------------------------------------------------ */ |
4980 | static ssize_t fan_fan1_input_show(struct device *dev, | |
4981 | struct device_attribute *attr, | |
4982 | char *buf) | |
4983 | { | |
4984 | int res; | |
4985 | unsigned int speed; | |
1c6a334e | 4986 | |
b21a15f6 HMH |
4987 | res = fan_get_speed(&speed); |
4988 | if (res < 0) | |
4989 | return res; | |
1c6a334e | 4990 | |
b21a15f6 HMH |
4991 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
4992 | } | |
18ad7996 | 4993 | |
b21a15f6 HMH |
4994 | static struct device_attribute dev_attr_fan_fan1_input = |
4995 | __ATTR(fan1_input, S_IRUGO, | |
4996 | fan_fan1_input_show, NULL); | |
40ca9fdf | 4997 | |
b21a15f6 HMH |
4998 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
4999 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
5000 | char *buf) | |
5001 | { | |
5002 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
5003 | } |
5004 | ||
b21a15f6 HMH |
5005 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
5006 | const char *buf, size_t count) | |
18ad7996 | 5007 | { |
b21a15f6 HMH |
5008 | unsigned long t; |
5009 | ||
5010 | if (parse_strtoul(buf, 120, &t)) | |
5011 | return -EINVAL; | |
40ca9fdf | 5012 | |
ecf2a80a HMH |
5013 | if (!fan_control_allowed) |
5014 | return -EPERM; | |
5015 | ||
b21a15f6 HMH |
5016 | fan_watchdog_maxinterval = t; |
5017 | fan_watchdog_reset(); | |
40ca9fdf | 5018 | |
b21a15f6 HMH |
5019 | return count; |
5020 | } | |
5021 | ||
5022 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
5023 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
5024 | ||
5025 | /* --------------------------------------------------------------------- */ | |
5026 | static struct attribute *fan_attributes[] = { | |
5027 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
5028 | &dev_attr_fan_fan1_input.attr, | |
5029 | NULL | |
5030 | }; | |
5031 | ||
5032 | static const struct attribute_group fan_attr_group = { | |
5033 | .attrs = fan_attributes, | |
5034 | }; | |
5035 | ||
5036 | static int __init fan_init(struct ibm_init_struct *iibm) | |
5037 | { | |
5038 | int rc; | |
5039 | ||
5040 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); | |
5041 | ||
5042 | mutex_init(&fan_mutex); | |
5043 | fan_status_access_mode = TPACPI_FAN_NONE; | |
5044 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5045 | fan_control_commands = 0; | |
5046 | fan_watchdog_maxinterval = 0; | |
5047 | tp_features.fan_ctrl_status_undef = 0; | |
5048 | fan_control_desired_level = 7; | |
5049 | ||
e0c7dfe7 HMH |
5050 | TPACPI_ACPIHANDLE_INIT(fans); |
5051 | TPACPI_ACPIHANDLE_INIT(gfan); | |
5052 | TPACPI_ACPIHANDLE_INIT(sfan); | |
b21a15f6 HMH |
5053 | |
5054 | if (gfan_handle) { | |
5055 | /* 570, 600e/x, 770e, 770x */ | |
5056 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
5057 | } else { | |
5058 | /* all other ThinkPads: note that even old-style | |
5059 | * ThinkPad ECs supports the fan control register */ | |
5060 | if (likely(acpi_ec_read(fan_status_offset, | |
5061 | &fan_control_initial_status))) { | |
5062 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
5063 | ||
5064 | /* In some ThinkPads, neither the EC nor the ACPI | |
5065 | * DSDT initialize the fan status, and it ends up | |
5066 | * being set to 0x07 when it *could* be either | |
5067 | * 0x07 or 0x80. | |
5068 | * | |
5069 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
5070 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
5071 | * to be buggy. */ | |
5072 | if (fan_control_initial_status == 0x07) { | |
5073 | switch (thinkpad_id.ec_model) { | |
5074 | case 0x5931: /* TP-1Y */ | |
5075 | case 0x3837: /* TP-78 */ | |
5076 | case 0x3637: /* TP-76 */ | |
5077 | case 0x3037: /* TP-70 */ | |
e0c7dfe7 | 5078 | printk(TPACPI_NOTICE |
b21a15f6 HMH |
5079 | "fan_init: initial fan status is " |
5080 | "unknown, assuming it is in auto " | |
5081 | "mode\n"); | |
5082 | tp_features.fan_ctrl_status_undef = 1; | |
5083 | ;; | |
5084 | } | |
5085 | } | |
5086 | } else { | |
e0c7dfe7 | 5087 | printk(TPACPI_ERR |
b21a15f6 HMH |
5088 | "ThinkPad ACPI EC access misbehaving, " |
5089 | "fan status and control unavailable\n"); | |
5090 | return 1; | |
5091 | } | |
5092 | } | |
5093 | ||
5094 | if (sfan_handle) { | |
5095 | /* 570, 770x-JL */ | |
5096 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
5097 | fan_control_commands |= | |
5098 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
5099 | } else { | |
5100 | if (!gfan_handle) { | |
5101 | /* gfan without sfan means no fan control */ | |
5102 | /* all other models implement TP EC 0x2f control */ | |
5103 | ||
5104 | if (fans_handle) { | |
5105 | /* X31, X40, X41 */ | |
5106 | fan_control_access_mode = | |
5107 | TPACPI_FAN_WR_ACPI_FANS; | |
5108 | fan_control_commands |= | |
5109 | TPACPI_FAN_CMD_SPEED | | |
5110 | TPACPI_FAN_CMD_LEVEL | | |
5111 | TPACPI_FAN_CMD_ENABLE; | |
5112 | } else { | |
5113 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
5114 | fan_control_commands |= | |
5115 | TPACPI_FAN_CMD_LEVEL | | |
5116 | TPACPI_FAN_CMD_ENABLE; | |
5117 | } | |
fe98a52c | 5118 | } |
b21a15f6 | 5119 | } |
18ad7996 | 5120 | |
b21a15f6 HMH |
5121 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
5122 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
5123 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
5124 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 5125 | |
b21a15f6 HMH |
5126 | /* fan control master switch */ |
5127 | if (!fan_control_allowed) { | |
5128 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
5129 | fan_control_commands = 0; | |
5130 | dbg_printk(TPACPI_DBG_INIT, | |
5131 | "fan control features disabled by parameter\n"); | |
18ad7996 | 5132 | } |
40ca9fdf | 5133 | |
b21a15f6 HMH |
5134 | /* update fan_control_desired_level */ |
5135 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
5136 | fan_get_status_safe(NULL); | |
fe98a52c | 5137 | |
b21a15f6 HMH |
5138 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
5139 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
5140 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, | |
5141 | &fan_attr_group); | |
5142 | if (!(rc < 0)) | |
5143 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
5144 | &driver_attr_fan_watchdog); | |
5145 | if (rc < 0) | |
5146 | return rc; | |
5147 | return 0; | |
5148 | } else | |
5149 | return 1; | |
56b6aeb0 HMH |
5150 | } |
5151 | ||
b21a15f6 | 5152 | static void fan_exit(void) |
56b6aeb0 | 5153 | { |
b21a15f6 | 5154 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 5155 | |
b21a15f6 HMH |
5156 | /* FIXME: can we really do this unconditionally? */ |
5157 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); | |
5158 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, &driver_attr_fan_watchdog); | |
40ca9fdf | 5159 | |
b21a15f6 HMH |
5160 | cancel_delayed_work(&fan_watchdog_task); |
5161 | flush_scheduled_work(); | |
56b6aeb0 HMH |
5162 | } |
5163 | ||
5164 | static int fan_read(char *p) | |
5165 | { | |
5166 | int len = 0; | |
5167 | int rc; | |
5168 | u8 status; | |
5169 | unsigned int speed = 0; | |
5170 | ||
5171 | switch (fan_status_access_mode) { | |
efa27145 | 5172 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 5173 | /* 570, 600e/x, 770e, 770x */ |
fe98a52c | 5174 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
5175 | return rc; |
5176 | ||
5177 | len += sprintf(p + len, "status:\t\t%s\n" | |
5178 | "level:\t\t%d\n", | |
5179 | (status != 0) ? "enabled" : "disabled", status); | |
5180 | break; | |
5181 | ||
efa27145 | 5182 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 5183 | /* all except 570, 600e/x, 770e, 770x */ |
fe98a52c | 5184 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
5185 | return rc; |
5186 | ||
d8fd94d9 | 5187 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 5188 | if (status != fan_control_initial_status) |
d8fd94d9 | 5189 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
5190 | else |
5191 | /* Return most likely status. In fact, it | |
5192 | * might be the only possible status */ | |
efa27145 | 5193 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
5194 | } |
5195 | ||
5196 | len += sprintf(p + len, "status:\t\t%s\n", | |
5197 | (status != 0) ? "enabled" : "disabled"); | |
5198 | ||
56b6aeb0 HMH |
5199 | if ((rc = fan_get_speed(&speed)) < 0) |
5200 | return rc; | |
5201 | ||
5202 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
5203 | ||
efa27145 | 5204 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
5205 | /* Disengaged mode takes precedence */ |
5206 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 5207 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
5208 | len += sprintf(p + len, "level:\t\tauto\n"); |
5209 | else | |
5210 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
5211 | break; | |
5212 | ||
efa27145 | 5213 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
5214 | default: |
5215 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
5216 | } | |
5217 | ||
efa27145 | 5218 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
5219 | len += sprintf(p + len, "commands:\tlevel <level>"); |
5220 | ||
5221 | switch (fan_control_access_mode) { | |
efa27145 | 5222 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
5223 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
5224 | break; | |
5225 | ||
5226 | default: | |
5227 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 5228 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
5229 | break; |
5230 | } | |
5231 | } | |
18ad7996 | 5232 | |
efa27145 | 5233 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
5234 | len += sprintf(p + len, "commands:\tenable, disable\n" |
5235 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
5236 | "1-120 (seconds))\n"); | |
1da177e4 | 5237 | |
efa27145 | 5238 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
5239 | len += sprintf(p + len, "commands:\tspeed <speed>" |
5240 | " (<speed> is 0-65535)\n"); | |
5241 | ||
5242 | return len; | |
78f81cc4 BD |
5243 | } |
5244 | ||
18ad7996 HMH |
5245 | static int fan_write_cmd_level(const char *cmd, int *rc) |
5246 | { | |
5247 | int level; | |
5248 | ||
a12095c2 | 5249 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 5250 | level = TP_EC_FAN_AUTO; |
fe98a52c HMH |
5251 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
5252 | (strlencmp(cmd, "level full-speed") == 0)) | |
efa27145 | 5253 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 5254 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
5255 | return 0; |
5256 | ||
fe98a52c | 5257 | if ((*rc = fan_set_level_safe(level)) == -ENXIO) |
e0c7dfe7 | 5258 | printk(TPACPI_ERR "level command accepted for unsupported " |
18ad7996 HMH |
5259 | "access mode %d", fan_control_access_mode); |
5260 | ||
5261 | return 1; | |
5262 | } | |
5263 | ||
5264 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
5265 | { | |
5266 | if (strlencmp(cmd, "enable") != 0) | |
5267 | return 0; | |
5268 | ||
5269 | if ((*rc = fan_set_enable()) == -ENXIO) | |
e0c7dfe7 | 5270 | printk(TPACPI_ERR "enable command accepted for unsupported " |
18ad7996 HMH |
5271 | "access mode %d", fan_control_access_mode); |
5272 | ||
5273 | return 1; | |
5274 | } | |
5275 | ||
5276 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
5277 | { | |
5278 | if (strlencmp(cmd, "disable") != 0) | |
5279 | return 0; | |
5280 | ||
5281 | if ((*rc = fan_set_disable()) == -ENXIO) | |
e0c7dfe7 | 5282 | printk(TPACPI_ERR "disable command accepted for unsupported " |
18ad7996 HMH |
5283 | "access mode %d", fan_control_access_mode); |
5284 | ||
5285 | return 1; | |
5286 | } | |
5287 | ||
5288 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
5289 | { | |
5290 | int speed; | |
5291 | ||
a8b7a662 HMH |
5292 | /* TODO: |
5293 | * Support speed <low> <medium> <high> ? */ | |
5294 | ||
18ad7996 HMH |
5295 | if (sscanf(cmd, "speed %d", &speed) != 1) |
5296 | return 0; | |
5297 | ||
5298 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
e0c7dfe7 | 5299 | printk(TPACPI_ERR "speed command accepted for unsupported " |
18ad7996 HMH |
5300 | "access mode %d", fan_control_access_mode); |
5301 | ||
5302 | return 1; | |
5303 | } | |
5304 | ||
16663a87 HMH |
5305 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
5306 | { | |
5307 | int interval; | |
5308 | ||
5309 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
5310 | return 0; | |
5311 | ||
5312 | if (interval < 0 || interval > 120) | |
5313 | *rc = -EINVAL; | |
5314 | else | |
5315 | fan_watchdog_maxinterval = interval; | |
5316 | ||
5317 | return 1; | |
5318 | } | |
5319 | ||
18ad7996 HMH |
5320 | static int fan_write(char *buf) |
5321 | { | |
5322 | char *cmd; | |
5323 | int rc = 0; | |
5324 | ||
5325 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 5326 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 5327 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 5328 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 5329 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
5330 | fan_write_cmd_disable(cmd, &rc) || |
5331 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 5332 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
5333 | fan_write_cmd_speed(cmd, &rc)) |
5334 | ) | |
5335 | rc = -EINVAL; | |
16663a87 HMH |
5336 | else if (!rc) |
5337 | fan_watchdog_reset(); | |
18ad7996 HMH |
5338 | } |
5339 | ||
5340 | return rc; | |
5341 | } | |
5342 | ||
a5763f22 HMH |
5343 | static struct ibm_struct fan_driver_data = { |
5344 | .name = "fan", | |
5345 | .read = fan_read, | |
5346 | .write = fan_write, | |
5347 | .exit = fan_exit, | |
a5763f22 HMH |
5348 | }; |
5349 | ||
56b6aeb0 HMH |
5350 | /**************************************************************************** |
5351 | **************************************************************************** | |
5352 | * | |
5353 | * Infrastructure | |
5354 | * | |
5355 | **************************************************************************** | |
5356 | ****************************************************************************/ | |
5357 | ||
7fd40029 HMH |
5358 | /* sysfs name ---------------------------------------------------------- */ |
5359 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
5360 | struct device_attribute *attr, | |
5361 | char *buf) | |
5362 | { | |
e0c7dfe7 | 5363 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
7fd40029 HMH |
5364 | } |
5365 | ||
5366 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
5367 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
5368 | ||
5369 | /* --------------------------------------------------------------------- */ | |
5370 | ||
56b6aeb0 | 5371 | /* /proc support */ |
94954cc6 | 5372 | static struct proc_dir_entry *proc_dir; |
16663a87 | 5373 | |
56b6aeb0 HMH |
5374 | /* |
5375 | * Module and infrastructure proble, init and exit handling | |
5376 | */ | |
1da177e4 | 5377 | |
b21a15f6 HMH |
5378 | static int force_load; |
5379 | ||
fe08bc4b | 5380 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 5381 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 5382 | { |
a5763f22 | 5383 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 5384 | |
a5763f22 | 5385 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
5386 | } |
5387 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
5388 | ||
b21a15f6 HMH |
5389 | static void ibm_exit(struct ibm_struct *ibm) |
5390 | { | |
5391 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
5392 | ||
5393 | list_del_init(&ibm->all_drivers); | |
5394 | ||
5395 | if (ibm->flags.acpi_notify_installed) { | |
5396 | dbg_printk(TPACPI_DBG_EXIT, | |
5397 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
5398 | BUG_ON(!ibm->acpi); | |
5399 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
5400 | ibm->acpi->type, | |
5401 | dispatch_acpi_notify); | |
5402 | ibm->flags.acpi_notify_installed = 0; | |
5403 | ibm->flags.acpi_notify_installed = 0; | |
5404 | } | |
5405 | ||
5406 | if (ibm->flags.proc_created) { | |
5407 | dbg_printk(TPACPI_DBG_EXIT, | |
5408 | "%s: remove_proc_entry\n", ibm->name); | |
5409 | remove_proc_entry(ibm->name, proc_dir); | |
5410 | ibm->flags.proc_created = 0; | |
5411 | } | |
5412 | ||
5413 | if (ibm->flags.acpi_driver_registered) { | |
5414 | dbg_printk(TPACPI_DBG_EXIT, | |
5415 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
5416 | BUG_ON(!ibm->acpi); | |
5417 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
5418 | kfree(ibm->acpi->driver); | |
5419 | ibm->acpi->driver = NULL; | |
5420 | ibm->flags.acpi_driver_registered = 0; | |
5421 | } | |
5422 | ||
5423 | if (ibm->flags.init_called && ibm->exit) { | |
5424 | ibm->exit(); | |
5425 | ibm->flags.init_called = 0; | |
5426 | } | |
5427 | ||
5428 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
5429 | } | |
f74a27d4 | 5430 | |
a5763f22 | 5431 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
5432 | { |
5433 | int ret; | |
a5763f22 | 5434 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
5435 | struct proc_dir_entry *entry; |
5436 | ||
a5763f22 HMH |
5437 | BUG_ON(ibm == NULL); |
5438 | ||
5439 | INIT_LIST_HEAD(&ibm->all_drivers); | |
5440 | ||
92641177 | 5441 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
5442 | return 0; |
5443 | ||
fe08bc4b HMH |
5444 | dbg_printk(TPACPI_DBG_INIT, |
5445 | "probing for %s\n", ibm->name); | |
5446 | ||
a5763f22 HMH |
5447 | if (iibm->init) { |
5448 | ret = iibm->init(iibm); | |
5fba344c HMH |
5449 | if (ret > 0) |
5450 | return 0; /* probe failed */ | |
5451 | if (ret) | |
1da177e4 | 5452 | return ret; |
a5763f22 | 5453 | |
92641177 | 5454 | ibm->flags.init_called = 1; |
1da177e4 LT |
5455 | } |
5456 | ||
8d376cd6 HMH |
5457 | if (ibm->acpi) { |
5458 | if (ibm->acpi->hid) { | |
5459 | ret = register_tpacpi_subdriver(ibm); | |
5460 | if (ret) | |
5461 | goto err_out; | |
5462 | } | |
5fba344c | 5463 | |
8d376cd6 HMH |
5464 | if (ibm->acpi->notify) { |
5465 | ret = setup_acpi_notify(ibm); | |
5466 | if (ret == -ENODEV) { | |
e0c7dfe7 | 5467 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
8d376cd6 HMH |
5468 | ibm->name); |
5469 | ret = 0; | |
5470 | goto err_out; | |
5471 | } | |
5472 | if (ret < 0) | |
5473 | goto err_out; | |
5fba344c | 5474 | } |
5fba344c HMH |
5475 | } |
5476 | ||
fe08bc4b HMH |
5477 | dbg_printk(TPACPI_DBG_INIT, |
5478 | "%s installed\n", ibm->name); | |
5479 | ||
78f81cc4 BD |
5480 | if (ibm->read) { |
5481 | entry = create_proc_entry(ibm->name, | |
5482 | S_IFREG | S_IRUGO | S_IWUSR, | |
5483 | proc_dir); | |
5484 | if (!entry) { | |
e0c7dfe7 | 5485 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
78f81cc4 | 5486 | ibm->name); |
5fba344c HMH |
5487 | ret = -ENODEV; |
5488 | goto err_out; | |
78f81cc4 BD |
5489 | } |
5490 | entry->owner = THIS_MODULE; | |
5491 | entry->data = ibm; | |
8d376cd6 | 5492 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 5493 | if (ibm->write) |
8d376cd6 | 5494 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 5495 | ibm->flags.proc_created = 1; |
78f81cc4 | 5496 | } |
1da177e4 | 5497 | |
a5763f22 HMH |
5498 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
5499 | ||
1da177e4 | 5500 | return 0; |
5fba344c HMH |
5501 | |
5502 | err_out: | |
fe08bc4b HMH |
5503 | dbg_printk(TPACPI_DBG_INIT, |
5504 | "%s: at error exit path with result %d\n", | |
5505 | ibm->name, ret); | |
5506 | ||
5fba344c HMH |
5507 | ibm_exit(ibm); |
5508 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
5509 | } |
5510 | ||
56b6aeb0 HMH |
5511 | /* Probing */ |
5512 | ||
d5a2f2f1 | 5513 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 5514 | { |
1855256c | 5515 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 5516 | char ec_fw_string[18]; |
1da177e4 | 5517 | |
d5a2f2f1 HMH |
5518 | if (!tp) |
5519 | return; | |
5520 | ||
5521 | memset(tp, 0, sizeof(*tp)); | |
5522 | ||
5523 | if (dmi_name_in_vendors("IBM")) | |
5524 | tp->vendor = PCI_VENDOR_ID_IBM; | |
5525 | else if (dmi_name_in_vendors("LENOVO")) | |
5526 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
5527 | else | |
5528 | return; | |
5529 | ||
5530 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
5531 | GFP_KERNEL); | |
5532 | if (!tp->bios_version_str) | |
5533 | return; | |
5534 | tp->bios_model = tp->bios_version_str[0] | |
5535 | | (tp->bios_version_str[1] << 8); | |
5536 | ||
56b6aeb0 HMH |
5537 | /* |
5538 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
5539 | * X32 or newer, all Z series; Some models must have an | |
5540 | * up-to-date BIOS or they will not be detected. | |
5541 | * | |
5542 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
5543 | */ | |
5544 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
5545 | if (sscanf(dev->name, | |
5546 | "IBM ThinkPad Embedded Controller -[%17c", | |
5547 | ec_fw_string) == 1) { | |
5548 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
5549 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
5550 | |
5551 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
5552 | tp->ec_model = ec_fw_string[0] | |
5553 | | (ec_fw_string[1] << 8); | |
5554 | break; | |
78f81cc4 | 5555 | } |
1da177e4 | 5556 | } |
d5a2f2f1 HMH |
5557 | |
5558 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
5559 | GFP_KERNEL); | |
5560 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
5561 | kfree(tp->model_str); | |
5562 | tp->model_str = NULL; | |
5563 | } | |
1da177e4 LT |
5564 | } |
5565 | ||
5fba344c HMH |
5566 | static int __init probe_for_thinkpad(void) |
5567 | { | |
5568 | int is_thinkpad; | |
5569 | ||
5570 | if (acpi_disabled) | |
5571 | return -ENODEV; | |
5572 | ||
5573 | /* | |
5574 | * Non-ancient models have better DMI tagging, but very old models | |
5575 | * don't. | |
5576 | */ | |
d5a2f2f1 | 5577 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
5578 | |
5579 | /* ec is required because many other handles are relative to it */ | |
e0c7dfe7 | 5580 | TPACPI_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
5581 | if (!ec_handle) { |
5582 | if (is_thinkpad) | |
e0c7dfe7 | 5583 | printk(TPACPI_ERR |
5fba344c HMH |
5584 | "Not yet supported ThinkPad detected!\n"); |
5585 | return -ENODEV; | |
5586 | } | |
5587 | ||
0dcef77c HMH |
5588 | /* |
5589 | * Risks a regression on very old machines, but reduces potential | |
5590 | * false positives a damn great deal | |
5591 | */ | |
5592 | if (!is_thinkpad) | |
d5a2f2f1 | 5593 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
5594 | |
5595 | if (!is_thinkpad && !force_load) | |
5596 | return -ENODEV; | |
5597 | ||
5fba344c HMH |
5598 | return 0; |
5599 | } | |
5600 | ||
5601 | ||
56b6aeb0 | 5602 | /* Module init, exit, parameters */ |
1da177e4 | 5603 | |
a5763f22 HMH |
5604 | static struct ibm_init_struct ibms_init[] __initdata = { |
5605 | { | |
5606 | .init = thinkpad_acpi_driver_init, | |
5607 | .data = &thinkpad_acpi_driver_data, | |
5608 | }, | |
5609 | { | |
5610 | .init = hotkey_init, | |
5611 | .data = &hotkey_driver_data, | |
5612 | }, | |
5613 | { | |
5614 | .init = bluetooth_init, | |
5615 | .data = &bluetooth_driver_data, | |
5616 | }, | |
5617 | { | |
5618 | .init = wan_init, | |
5619 | .data = &wan_driver_data, | |
5620 | }, | |
5621 | { | |
5622 | .init = video_init, | |
5623 | .data = &video_driver_data, | |
5624 | }, | |
5625 | { | |
5626 | .init = light_init, | |
5627 | .data = &light_driver_data, | |
5628 | }, | |
5629 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
5630 | { | |
5631 | .init = dock_init, | |
5632 | .data = &dock_driver_data[0], | |
5633 | }, | |
5634 | { | |
d94a7f16 | 5635 | .init = dock_init2, |
a5763f22 HMH |
5636 | .data = &dock_driver_data[1], |
5637 | }, | |
5638 | #endif | |
5639 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
5640 | { | |
5641 | .init = bay_init, | |
5642 | .data = &bay_driver_data, | |
5643 | }, | |
5644 | #endif | |
5645 | { | |
5646 | .init = cmos_init, | |
5647 | .data = &cmos_driver_data, | |
5648 | }, | |
5649 | { | |
5650 | .init = led_init, | |
5651 | .data = &led_driver_data, | |
5652 | }, | |
5653 | { | |
5654 | .init = beep_init, | |
5655 | .data = &beep_driver_data, | |
5656 | }, | |
5657 | { | |
5658 | .init = thermal_init, | |
5659 | .data = &thermal_driver_data, | |
5660 | }, | |
5661 | { | |
5662 | .data = &ecdump_driver_data, | |
5663 | }, | |
5664 | { | |
5665 | .init = brightness_init, | |
5666 | .data = &brightness_driver_data, | |
5667 | }, | |
5668 | { | |
5669 | .data = &volume_driver_data, | |
5670 | }, | |
5671 | { | |
5672 | .init = fan_init, | |
5673 | .data = &fan_driver_data, | |
5674 | }, | |
5675 | }; | |
5676 | ||
3945ac36 | 5677 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
5678 | { |
5679 | unsigned int i; | |
a5763f22 | 5680 | struct ibm_struct *ibm; |
1da177e4 | 5681 | |
59f91ff1 HMH |
5682 | if (!kp || !kp->name || !val) |
5683 | return -EINVAL; | |
5684 | ||
a5763f22 HMH |
5685 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
5686 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
5687 | WARN_ON(ibm == NULL); |
5688 | ||
5689 | if (!ibm || !ibm->name) | |
5690 | continue; | |
a5763f22 HMH |
5691 | |
5692 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
5693 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 5694 | return -ENOSPC; |
a5763f22 HMH |
5695 | strcpy(ibms_init[i].param, val); |
5696 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
5697 | return 0; |
5698 | } | |
a5763f22 | 5699 | } |
1da177e4 | 5700 | |
1da177e4 LT |
5701 | return -EINVAL; |
5702 | } | |
5703 | ||
56b6aeb0 | 5704 | module_param(experimental, int, 0); |
f68080f8 HMH |
5705 | MODULE_PARM_DESC(experimental, |
5706 | "Enables experimental features when non-zero"); | |
56b6aeb0 | 5707 | |
132ce091 | 5708 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 5709 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 5710 | |
86cc9445 | 5711 | module_param(force_load, bool, 0); |
f68080f8 HMH |
5712 | MODULE_PARM_DESC(force_load, |
5713 | "Attempts to load the driver even on a " | |
5714 | "mis-identified ThinkPad when true"); | |
0dcef77c | 5715 | |
86cc9445 | 5716 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
f68080f8 HMH |
5717 | MODULE_PARM_DESC(fan_control, |
5718 | "Enables setting fan parameters features when true"); | |
ecf2a80a | 5719 | |
24d3b774 | 5720 | module_param_named(brightness_mode, brightness_mode, int, 0); |
f68080f8 HMH |
5721 | MODULE_PARM_DESC(brightness_mode, |
5722 | "Selects brightness control strategy: " | |
5723 | "0=auto, 1=EC, 2=CMOS, 3=both"); | |
24d3b774 | 5724 | |
87cc537a | 5725 | module_param(brightness_enable, uint, 0); |
f68080f8 HMH |
5726 | MODULE_PARM_DESC(brightness_enable, |
5727 | "Enables backlight control when 1, disables when 0"); | |
87cc537a | 5728 | |
ff80f137 | 5729 | module_param(hotkey_report_mode, uint, 0); |
f68080f8 HMH |
5730 | MODULE_PARM_DESC(hotkey_report_mode, |
5731 | "used for backwards compatibility with userspace, " | |
5732 | "see documentation"); | |
ff80f137 | 5733 | |
e0c7dfe7 | 5734 | #define TPACPI_PARAM(feature) \ |
f68080f8 HMH |
5735 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
5736 | MODULE_PARM_DESC(feature, "Simulates thinkpad-aci procfs command " \ | |
5737 | "at module load, see documentation") | |
1da177e4 | 5738 | |
e0c7dfe7 HMH |
5739 | TPACPI_PARAM(hotkey); |
5740 | TPACPI_PARAM(bluetooth); | |
5741 | TPACPI_PARAM(video); | |
5742 | TPACPI_PARAM(light); | |
85998248 | 5743 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
e0c7dfe7 | 5744 | TPACPI_PARAM(dock); |
63e5f248 | 5745 | #endif |
85998248 | 5746 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
e0c7dfe7 | 5747 | TPACPI_PARAM(bay); |
85998248 | 5748 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
e0c7dfe7 HMH |
5749 | TPACPI_PARAM(cmos); |
5750 | TPACPI_PARAM(led); | |
5751 | TPACPI_PARAM(beep); | |
5752 | TPACPI_PARAM(ecdump); | |
5753 | TPACPI_PARAM(brightness); | |
5754 | TPACPI_PARAM(volume); | |
5755 | TPACPI_PARAM(fan); | |
78f81cc4 | 5756 | |
b21a15f6 HMH |
5757 | static void thinkpad_acpi_module_exit(void) |
5758 | { | |
5759 | struct ibm_struct *ibm, *itmp; | |
5760 | ||
5761 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
5762 | ||
5763 | list_for_each_entry_safe_reverse(ibm, itmp, | |
5764 | &tpacpi_all_drivers, | |
5765 | all_drivers) { | |
5766 | ibm_exit(ibm); | |
5767 | } | |
5768 | ||
5769 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
5770 | ||
5771 | if (tpacpi_inputdev) { | |
5772 | if (tp_features.input_device_registered) | |
5773 | input_unregister_device(tpacpi_inputdev); | |
5774 | else | |
5775 | input_free_device(tpacpi_inputdev); | |
5776 | } | |
5777 | ||
5778 | if (tpacpi_hwmon) | |
5779 | hwmon_device_unregister(tpacpi_hwmon); | |
5780 | ||
5781 | if (tp_features.sensors_pdev_attrs_registered) | |
5782 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
5783 | &dev_attr_thinkpad_acpi_pdev_name); | |
5784 | if (tpacpi_sensors_pdev) | |
5785 | platform_device_unregister(tpacpi_sensors_pdev); | |
5786 | if (tpacpi_pdev) | |
5787 | platform_device_unregister(tpacpi_pdev); | |
5788 | ||
5789 | if (tp_features.sensors_pdrv_attrs_registered) | |
5790 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
5791 | if (tp_features.platform_drv_attrs_registered) | |
5792 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
5793 | ||
5794 | if (tp_features.sensors_pdrv_registered) | |
5795 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
5796 | ||
5797 | if (tp_features.platform_drv_registered) | |
5798 | platform_driver_unregister(&tpacpi_pdriver); | |
5799 | ||
5800 | if (proc_dir) | |
e0c7dfe7 | 5801 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 HMH |
5802 | |
5803 | kfree(thinkpad_id.bios_version_str); | |
5804 | kfree(thinkpad_id.ec_version_str); | |
5805 | kfree(thinkpad_id.model_str); | |
5806 | } | |
5807 | ||
f74a27d4 | 5808 | |
1def7115 | 5809 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
5810 | { |
5811 | int ret, i; | |
5812 | ||
8fef502e HMH |
5813 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
5814 | ||
ff80f137 HMH |
5815 | /* Parameter checking */ |
5816 | if (hotkey_report_mode > 2) | |
5817 | return -EINVAL; | |
5818 | ||
54ae1501 | 5819 | /* Driver-level probe */ |
d5a2f2f1 HMH |
5820 | |
5821 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 5822 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
5823 | if (ret) { |
5824 | thinkpad_acpi_module_exit(); | |
5fba344c | 5825 | return ret; |
d5a2f2f1 | 5826 | } |
1da177e4 | 5827 | |
54ae1501 | 5828 | /* Driver initialization */ |
d5a2f2f1 | 5829 | |
e0c7dfe7 HMH |
5830 | TPACPI_ACPIHANDLE_INIT(ecrd); |
5831 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 5832 | |
e0c7dfe7 | 5833 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 5834 | if (!proc_dir) { |
e0c7dfe7 | 5835 | printk(TPACPI_ERR "unable to create proc dir " TPACPI_PROC_DIR); |
1def7115 | 5836 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
5837 | return -ENODEV; |
5838 | } | |
5839 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 5840 | |
54ae1501 HMH |
5841 | ret = platform_driver_register(&tpacpi_pdriver); |
5842 | if (ret) { | |
e0c7dfe7 | 5843 | printk(TPACPI_ERR "unable to register main platform driver\n"); |
54ae1501 HMH |
5844 | thinkpad_acpi_module_exit(); |
5845 | return ret; | |
5846 | } | |
ac36393d HMH |
5847 | tp_features.platform_drv_registered = 1; |
5848 | ||
7fd40029 HMH |
5849 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
5850 | if (ret) { | |
e0c7dfe7 | 5851 | printk(TPACPI_ERR "unable to register hwmon platform driver\n"); |
7fd40029 HMH |
5852 | thinkpad_acpi_module_exit(); |
5853 | return ret; | |
5854 | } | |
5855 | tp_features.sensors_pdrv_registered = 1; | |
5856 | ||
176750d6 | 5857 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
5858 | if (!ret) { |
5859 | tp_features.platform_drv_attrs_registered = 1; | |
5860 | ret = tpacpi_create_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
5861 | } | |
176750d6 | 5862 | if (ret) { |
e0c7dfe7 | 5863 | printk(TPACPI_ERR "unable to create sysfs driver attributes\n"); |
176750d6 HMH |
5864 | thinkpad_acpi_module_exit(); |
5865 | return ret; | |
5866 | } | |
2369cc94 | 5867 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 5868 | |
54ae1501 HMH |
5869 | |
5870 | /* Device initialization */ | |
e0c7dfe7 | 5871 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
5872 | NULL, 0); |
5873 | if (IS_ERR(tpacpi_pdev)) { | |
5874 | ret = PTR_ERR(tpacpi_pdev); | |
5875 | tpacpi_pdev = NULL; | |
e0c7dfe7 | 5876 | printk(TPACPI_ERR "unable to register platform device\n"); |
54ae1501 HMH |
5877 | thinkpad_acpi_module_exit(); |
5878 | return ret; | |
5879 | } | |
7fd40029 | 5880 | tpacpi_sensors_pdev = platform_device_register_simple( |
e0c7dfe7 | 5881 | TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
5882 | -1, NULL, 0); |
5883 | if (IS_ERR(tpacpi_sensors_pdev)) { | |
5884 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
5885 | tpacpi_sensors_pdev = NULL; | |
e0c7dfe7 | 5886 | printk(TPACPI_ERR "unable to register hwmon platform device\n"); |
7fd40029 HMH |
5887 | thinkpad_acpi_module_exit(); |
5888 | return ret; | |
5889 | } | |
5890 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
5891 | &dev_attr_thinkpad_acpi_pdev_name); | |
5892 | if (ret) { | |
e0c7dfe7 | 5893 | printk(TPACPI_ERR |
7fd40029 HMH |
5894 | "unable to create sysfs hwmon device attributes\n"); |
5895 | thinkpad_acpi_module_exit(); | |
5896 | return ret; | |
5897 | } | |
5898 | tp_features.sensors_pdev_attrs_registered = 1; | |
5899 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
5900 | if (IS_ERR(tpacpi_hwmon)) { |
5901 | ret = PTR_ERR(tpacpi_hwmon); | |
5902 | tpacpi_hwmon = NULL; | |
e0c7dfe7 | 5903 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
54ae1501 HMH |
5904 | thinkpad_acpi_module_exit(); |
5905 | return ret; | |
5906 | } | |
8523ed6f | 5907 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
5908 | tpacpi_inputdev = input_allocate_device(); |
5909 | if (!tpacpi_inputdev) { | |
e0c7dfe7 | 5910 | printk(TPACPI_ERR "unable to allocate input device\n"); |
7f5d1cd6 HMH |
5911 | thinkpad_acpi_module_exit(); |
5912 | return -ENOMEM; | |
5913 | } else { | |
5914 | /* Prepare input device, but don't register */ | |
5915 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 5916 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 5917 | tpacpi_inputdev->id.bustype = BUS_HOST; |
edf0e0e5 HMH |
5918 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
5919 | thinkpad_id.vendor : | |
5920 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
5921 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
5922 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
5923 | } | |
a5763f22 HMH |
5924 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
5925 | ret = ibm_init(&ibms_init[i]); | |
5926 | if (ret >= 0 && *ibms_init[i].param) | |
5927 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 5928 | if (ret < 0) { |
1def7115 | 5929 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
5930 | return ret; |
5931 | } | |
5932 | } | |
7f5d1cd6 HMH |
5933 | ret = input_register_device(tpacpi_inputdev); |
5934 | if (ret < 0) { | |
e0c7dfe7 | 5935 | printk(TPACPI_ERR "unable to register input device\n"); |
7f5d1cd6 HMH |
5936 | thinkpad_acpi_module_exit(); |
5937 | return ret; | |
5938 | } else { | |
5939 | tp_features.input_device_registered = 1; | |
5940 | } | |
1da177e4 | 5941 | |
8fef502e | 5942 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
5943 | return 0; |
5944 | } | |
5945 | ||
f68080f8 HMH |
5946 | /* Please remove this in year 2009 */ |
5947 | MODULE_ALIAS("ibm_acpi"); | |
5948 | ||
5949 | /* | |
5950 | * DMI matching for module autoloading | |
5951 | * | |
5952 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
5953 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
5954 | * | |
5955 | * Only models listed in thinkwiki will be supported, so add yours | |
5956 | * if it is not there yet. | |
5957 | */ | |
5958 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
5959 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
5960 | ||
5961 | /* Non-ancient thinkpads */ | |
5962 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
5963 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
5964 | ||
5965 | /* Ancient thinkpad BIOSes have to be identified by | |
5966 | * BIOS type or model number, and there are far less | |
5967 | * BIOS types than model numbers... */ | |
5968 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
5969 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
5970 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
5971 | ||
5972 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); | |
e0c7dfe7 HMH |
5973 | MODULE_DESCRIPTION(TPACPI_DESC); |
5974 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
5975 | MODULE_LICENSE("GPL"); |
5976 | ||
1def7115 HMH |
5977 | module_init(thinkpad_acpi_module_init); |
5978 | module_exit(thinkpad_acpi_module_exit); |