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 | ||
643f12db | 24 | #define IBM_VERSION "0.14" |
78f81cc4 BD |
25 | |
26 | /* | |
1da177e4 | 27 | * Changelog: |
643f12db HMH |
28 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
29 | * drivers/misc. | |
f9ff43a6 HMH |
30 | * |
31 | * 2006-11-22 0.13 new maintainer | |
32 | * changelog now lives in git commit history, and will | |
33 | * not be updated further in-file. | |
837ca6dd | 34 | * |
78f81cc4 BD |
35 | * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels |
36 | * 2005-03-17 0.11 support for 600e, 770x | |
37 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
38 | * support for 770e, G41 | |
39 | * G40 and G41 don't have a thinklight | |
40 | * temperatures no longer experimental | |
41 | * experimental brightness control | |
42 | * experimental volume control | |
43 | * experimental fan enable/disable | |
837ca6dd | 44 | * 2005-01-16 0.10 fix module loading on R30, R31 |
78f81cc4 BD |
45 | * 2005-01-16 0.9 support for 570, R30, R31 |
46 | * ultrabay support on A22p, A3x | |
47 | * limit arg for cmos, led, beep, drop experimental status | |
48 | * more capable led control on A21e, A22p, T20-22, X20 | |
49 | * experimental temperatures and fan speed | |
50 | * experimental embedded controller register dump | |
51 | * mark more functions as __init, drop incorrect __exit | |
52 | * use MODULE_VERSION | |
53 | * thanks to Henrik Brix Andersen <brix@gentoo.org> | |
54 | * fix parameter passing on module loading | |
55 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
56 | * thanks to Jim Radford <radford@blackbean.org> | |
57 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
58 | * thanks to Chris Wright <chrisw@osdl.org> | |
59 | * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20 | |
60 | * fix led control on A21e | |
61 | * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device | |
1da177e4 LT |
62 | * 2004-10-18 0.5 thinklight support on A21e, G40, R32, T20, T21, X20 |
63 | * proc file format changed | |
64 | * video_switch command | |
65 | * experimental cmos control | |
66 | * experimental led control | |
67 | * experimental acpi sounds | |
78f81cc4 BD |
68 | * 2004-09-16 0.4 support for module parameters |
69 | * hotkey mask can be prefixed by 0x | |
70 | * video output switching | |
71 | * video expansion control | |
72 | * ultrabay eject support | |
73 | * removed lcd brightness/on/off control, didn't work | |
74 | * 2004-08-17 0.3 support for R40 | |
75 | * lcd off, brightness control | |
76 | * thinklight on/off | |
77 | * 2004-08-14 0.2 support for T series, X20 | |
78 | * bluetooth enable/disable | |
79 | * hotkey events disabled by default | |
80 | * removed fan control, currently useless | |
81 | * 2004-08-09 0.1 initial release, support for X series | |
1da177e4 LT |
82 | */ |
83 | ||
f21f85de | 84 | #include "thinkpad_acpi.h" |
1da177e4 | 85 | |
f9ff43a6 | 86 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); |
78f81cc4 BD |
87 | MODULE_DESCRIPTION(IBM_DESC); |
88 | MODULE_VERSION(IBM_VERSION); | |
89 | MODULE_LICENSE("GPL"); | |
90 | ||
d903ac54 HMH |
91 | /* Please remove this in year 2009 */ |
92 | MODULE_ALIAS("ibm_acpi"); | |
93 | ||
1da177e4 LT |
94 | #define __unused __attribute__ ((unused)) |
95 | ||
56b6aeb0 HMH |
96 | /**************************************************************************** |
97 | **************************************************************************** | |
98 | * | |
99 | * ACPI Helpers and device model | |
100 | * | |
101 | **************************************************************************** | |
102 | ****************************************************************************/ | |
103 | ||
104 | /************************************************************************* | |
105 | * ACPI basic handles | |
106 | */ | |
1da177e4 LT |
107 | |
108 | static acpi_handle root_handle = NULL; | |
109 | ||
110 | #define IBM_HANDLE(object, parent, paths...) \ | |
111 | static acpi_handle object##_handle; \ | |
112 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 113 | static char *object##_path; \ |
1da177e4 LT |
114 | static char *object##_paths[] = { paths } |
115 | ||
78f81cc4 BD |
116 | IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
117 | "\\_SB.PCI.ISA.EC", /* 570 */ | |
118 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
119 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
120 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
121 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
122 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 123 | ); |
78f81cc4 | 124 | |
56b6aeb0 HMH |
125 | IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
126 | IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 127 | |
56b6aeb0 HMH |
128 | |
129 | /************************************************************************* | |
130 | * Misc ACPI handles | |
131 | */ | |
78f81cc4 BD |
132 | |
133 | IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ | |
134 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ | |
135 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 136 | ); /* all others */ |
78f81cc4 BD |
137 | |
138 | IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ | |
139 | "^HKEY", /* R30, R31 */ | |
140 | "HKEY", /* all others */ | |
56b6aeb0 | 141 | ); /* 570 */ |
78f81cc4 | 142 | |
78f81cc4 | 143 | |
56b6aeb0 HMH |
144 | /************************************************************************* |
145 | * ACPI helpers | |
a8b7a662 HMH |
146 | */ |
147 | ||
1da177e4 LT |
148 | static int acpi_evalf(acpi_handle handle, |
149 | void *res, char *method, char *fmt, ...) | |
150 | { | |
151 | char *fmt0 = fmt; | |
78f81cc4 BD |
152 | struct acpi_object_list params; |
153 | union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; | |
154 | struct acpi_buffer result, *resultp; | |
155 | union acpi_object out_obj; | |
156 | acpi_status status; | |
157 | va_list ap; | |
158 | char res_type; | |
159 | int success; | |
160 | int quiet; | |
1da177e4 LT |
161 | |
162 | if (!*fmt) { | |
163 | printk(IBM_ERR "acpi_evalf() called with empty format\n"); | |
164 | return 0; | |
165 | } | |
166 | ||
167 | if (*fmt == 'q') { | |
168 | quiet = 1; | |
169 | fmt++; | |
170 | } else | |
171 | quiet = 0; | |
172 | ||
173 | res_type = *(fmt++); | |
174 | ||
175 | params.count = 0; | |
176 | params.pointer = &in_objs[0]; | |
177 | ||
178 | va_start(ap, fmt); | |
179 | while (*fmt) { | |
180 | char c = *(fmt++); | |
181 | switch (c) { | |
182 | case 'd': /* int */ | |
183 | in_objs[params.count].integer.value = va_arg(ap, int); | |
184 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
185 | break; | |
78f81cc4 | 186 | /* add more types as needed */ |
1da177e4 LT |
187 | default: |
188 | printk(IBM_ERR "acpi_evalf() called " | |
189 | "with invalid format character '%c'\n", c); | |
190 | return 0; | |
191 | } | |
192 | } | |
193 | va_end(ap); | |
194 | ||
78f81cc4 BD |
195 | if (res_type != 'v') { |
196 | result.length = sizeof(out_obj); | |
197 | result.pointer = &out_obj; | |
198 | resultp = &result; | |
199 | } else | |
200 | resultp = NULL; | |
1da177e4 | 201 | |
78f81cc4 | 202 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
203 | |
204 | switch (res_type) { | |
78f81cc4 | 205 | case 'd': /* int */ |
1da177e4 LT |
206 | if (res) |
207 | *(int *)res = out_obj.integer.value; | |
208 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
209 | break; | |
78f81cc4 | 210 | case 'v': /* void */ |
1da177e4 LT |
211 | success = status == AE_OK; |
212 | break; | |
78f81cc4 | 213 | /* add more types as needed */ |
1da177e4 LT |
214 | default: |
215 | printk(IBM_ERR "acpi_evalf() called " | |
216 | "with invalid format character '%c'\n", res_type); | |
217 | return 0; | |
218 | } | |
219 | ||
56b6aeb0 HMH |
220 | if (!success && !quiet) |
221 | printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", | |
222 | method, fmt0, status); | |
223 | ||
224 | return success; | |
225 | } | |
226 | ||
227 | static void __unused acpi_print_int(acpi_handle handle, char *method) | |
228 | { | |
229 | int i; | |
230 | ||
231 | if (acpi_evalf(handle, &i, method, "d")) | |
232 | printk(IBM_INFO "%s = 0x%x\n", method, i); | |
233 | else | |
234 | printk(IBM_ERR "error calling %s\n", method); | |
235 | } | |
236 | ||
237 | static int acpi_ec_read(int i, u8 * p) | |
238 | { | |
239 | int v; | |
240 | ||
241 | if (ecrd_handle) { | |
242 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
243 | return 0; | |
244 | *p = v; | |
245 | } else { | |
246 | if (ec_read(i, p) < 0) | |
247 | return 0; | |
248 | } | |
249 | ||
250 | return 1; | |
251 | } | |
252 | ||
253 | static int acpi_ec_write(int i, u8 v) | |
254 | { | |
255 | if (ecwr_handle) { | |
256 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
257 | return 0; | |
258 | } else { | |
259 | if (ec_write(i, v) < 0) | |
260 | return 0; | |
261 | } | |
262 | ||
263 | return 1; | |
264 | } | |
265 | ||
266 | static int _sta(acpi_handle handle) | |
267 | { | |
268 | int status; | |
269 | ||
270 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
271 | status = 0; | |
272 | ||
273 | return status; | |
274 | } | |
275 | ||
276 | /************************************************************************* | |
277 | * ACPI device model | |
278 | */ | |
279 | ||
5fba344c HMH |
280 | static void ibm_handle_init(char *name, |
281 | acpi_handle *handle, acpi_handle parent, | |
282 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
283 | { |
284 | int i; | |
285 | acpi_status status; | |
286 | ||
287 | for (i = 0; i < num_paths; i++) { | |
288 | status = acpi_get_handle(parent, paths[i], handle); | |
289 | if (ACPI_SUCCESS(status)) { | |
290 | *path = paths[i]; | |
291 | return; | |
292 | } | |
293 | } | |
294 | ||
295 | *handle = NULL; | |
296 | } | |
297 | ||
298 | static void dispatch_notify(acpi_handle handle, u32 event, void *data) | |
299 | { | |
300 | struct ibm_struct *ibm = data; | |
301 | ||
302 | if (!ibm || !ibm->notify) | |
303 | return; | |
304 | ||
305 | ibm->notify(ibm, event); | |
306 | } | |
307 | ||
308 | static int __init setup_notify(struct ibm_struct *ibm) | |
309 | { | |
310 | acpi_status status; | |
311 | int ret; | |
312 | ||
313 | if (!*ibm->handle) | |
314 | return 0; | |
315 | ||
fe08bc4b HMH |
316 | dbg_printk(TPACPI_DBG_INIT, |
317 | "setting up ACPI notify for %s\n", ibm->name); | |
318 | ||
56b6aeb0 HMH |
319 | ret = acpi_bus_get_device(*ibm->handle, &ibm->device); |
320 | if (ret < 0) { | |
321 | printk(IBM_ERR "%s device not present\n", ibm->name); | |
322 | return -ENODEV; | |
323 | } | |
324 | ||
325 | acpi_driver_data(ibm->device) = ibm; | |
643f12db HMH |
326 | sprintf(acpi_device_class(ibm->device), "%s/%s", |
327 | IBM_ACPI_EVENT_PREFIX, | |
328 | ibm->name); | |
56b6aeb0 HMH |
329 | |
330 | status = acpi_install_notify_handler(*ibm->handle, ibm->type, | |
331 | dispatch_notify, ibm); | |
332 | if (ACPI_FAILURE(status)) { | |
333 | if (status == AE_ALREADY_EXISTS) { | |
334 | printk(IBM_NOTICE "another device driver is already handling %s events\n", | |
335 | ibm->name); | |
336 | } else { | |
337 | printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", | |
338 | ibm->name, status); | |
339 | } | |
340 | return -ENODEV; | |
341 | } | |
342 | ibm->notify_installed = 1; | |
343 | return 0; | |
344 | } | |
345 | ||
346 | static int __init ibm_device_add(struct acpi_device *device) | |
347 | { | |
348 | return 0; | |
349 | } | |
350 | ||
6700121b | 351 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 HMH |
352 | { |
353 | int ret; | |
354 | ||
fe08bc4b HMH |
355 | dbg_printk(TPACPI_DBG_INIT, |
356 | "registering %s as an ACPI driver\n", ibm->name); | |
357 | ||
56b6aeb0 HMH |
358 | ibm->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); |
359 | if (!ibm->driver) { | |
5fba344c HMH |
360 | printk(IBM_ERR "kzalloc(ibm->driver) failed\n"); |
361 | return -ENOMEM; | |
56b6aeb0 HMH |
362 | } |
363 | ||
364 | sprintf(ibm->driver->name, "%s_%s", IBM_NAME, ibm->name); | |
365 | ibm->driver->ids = ibm->hid; | |
366 | ibm->driver->ops.add = &ibm_device_add; | |
367 | ||
368 | ret = acpi_bus_register_driver(ibm->driver); | |
369 | if (ret < 0) { | |
370 | printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", | |
371 | ibm->hid, ret); | |
372 | kfree(ibm->driver); | |
5fba344c HMH |
373 | ibm->driver = NULL; |
374 | } else if (!ret) | |
375 | ibm->driver_registered = 1; | |
56b6aeb0 HMH |
376 | |
377 | return ret; | |
378 | } | |
379 | ||
380 | ||
381 | /**************************************************************************** | |
382 | **************************************************************************** | |
383 | * | |
384 | * Procfs Helpers | |
385 | * | |
386 | **************************************************************************** | |
387 | ****************************************************************************/ | |
388 | ||
389 | static int dispatch_read(char *page, char **start, off_t off, int count, | |
390 | int *eof, void *data) | |
391 | { | |
392 | struct ibm_struct *ibm = data; | |
393 | int len; | |
394 | ||
395 | if (!ibm || !ibm->read) | |
396 | return -EINVAL; | |
397 | ||
398 | len = ibm->read(page); | |
399 | if (len < 0) | |
400 | return len; | |
401 | ||
402 | if (len <= off + count) | |
403 | *eof = 1; | |
404 | *start = page + off; | |
405 | len -= off; | |
406 | if (len > count) | |
407 | len = count; | |
408 | if (len < 0) | |
409 | len = 0; | |
410 | ||
411 | return len; | |
412 | } | |
413 | ||
414 | static int dispatch_write(struct file *file, const char __user * userbuf, | |
415 | unsigned long count, void *data) | |
416 | { | |
417 | struct ibm_struct *ibm = data; | |
418 | char *kernbuf; | |
419 | int ret; | |
420 | ||
421 | if (!ibm || !ibm->write) | |
422 | return -EINVAL; | |
423 | ||
424 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
425 | if (!kernbuf) | |
426 | return -ENOMEM; | |
1da177e4 | 427 | |
56b6aeb0 HMH |
428 | if (copy_from_user(kernbuf, userbuf, count)) { |
429 | kfree(kernbuf); | |
430 | return -EFAULT; | |
431 | } | |
1da177e4 | 432 | |
56b6aeb0 HMH |
433 | kernbuf[count] = 0; |
434 | strcat(kernbuf, ","); | |
435 | ret = ibm->write(kernbuf); | |
436 | if (ret == 0) | |
437 | ret = count; | |
1da177e4 | 438 | |
56b6aeb0 HMH |
439 | kfree(kernbuf); |
440 | ||
441 | return ret; | |
1da177e4 LT |
442 | } |
443 | ||
444 | static char *next_cmd(char **cmds) | |
445 | { | |
446 | char *start = *cmds; | |
447 | char *end; | |
448 | ||
449 | while ((end = strchr(start, ',')) && end == start) | |
450 | start = end + 1; | |
451 | ||
452 | if (!end) | |
453 | return NULL; | |
454 | ||
455 | *end = 0; | |
456 | *cmds = end + 1; | |
457 | return start; | |
458 | } | |
459 | ||
56b6aeb0 HMH |
460 | |
461 | /**************************************************************************** | |
462 | **************************************************************************** | |
463 | * | |
464 | * Subdrivers | |
465 | * | |
466 | **************************************************************************** | |
467 | ****************************************************************************/ | |
468 | ||
469 | /************************************************************************* | |
142cfc90 | 470 | * thinkpad-acpi init subdriver |
56b6aeb0 HMH |
471 | */ |
472 | ||
a5763f22 | 473 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
474 | { |
475 | printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); | |
476 | printk(IBM_INFO "%s\n", IBM_URL); | |
477 | ||
3945ac36 HMH |
478 | if (ibm_thinkpad_ec_found) |
479 | printk(IBM_INFO "ThinkPad EC firmware %s\n", | |
480 | ibm_thinkpad_ec_found); | |
481 | ||
1da177e4 LT |
482 | return 0; |
483 | } | |
484 | ||
643f12db | 485 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
486 | { |
487 | int len = 0; | |
488 | ||
489 | len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); | |
490 | len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); | |
491 | ||
492 | return len; | |
493 | } | |
494 | ||
a5763f22 HMH |
495 | static struct ibm_struct thinkpad_acpi_driver_data = { |
496 | .name = "driver", | |
497 | .read = thinkpad_acpi_driver_read, | |
498 | }; | |
499 | ||
56b6aeb0 HMH |
500 | /************************************************************************* |
501 | * Hotkey subdriver | |
502 | */ | |
503 | ||
78f81cc4 BD |
504 | static int hotkey_supported; |
505 | static int hotkey_mask_supported; | |
506 | static int hotkey_orig_status; | |
507 | static int hotkey_orig_mask; | |
508 | ||
a5763f22 | 509 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 510 | { |
fe08bc4b HMH |
511 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
512 | ||
5fba344c HMH |
513 | IBM_HANDLE_INIT(hkey); |
514 | ||
56b6aeb0 HMH |
515 | /* hotkey not supported on 570 */ |
516 | hotkey_supported = hkey_handle != NULL; | |
517 | ||
fe08bc4b HMH |
518 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
519 | str_supported(hotkey_supported)); | |
520 | ||
56b6aeb0 HMH |
521 | if (hotkey_supported) { |
522 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, | |
523 | A30, R30, R31, T20-22, X20-21, X22-24 */ | |
524 | hotkey_mask_supported = | |
525 | acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); | |
526 | ||
fe08bc4b HMH |
527 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
528 | str_supported(hotkey_mask_supported)); | |
529 | ||
56b6aeb0 HMH |
530 | if (!hotkey_get(&hotkey_orig_status, &hotkey_orig_mask)) |
531 | return -ENODEV; | |
532 | } | |
533 | ||
5fba344c | 534 | return (hotkey_supported)? 0 : 1; |
56b6aeb0 HMH |
535 | } |
536 | ||
537 | static void hotkey_exit(void) | |
538 | { | |
5fba344c | 539 | if (hotkey_supported) { |
fe08bc4b | 540 | dbg_printk(TPACPI_DBG_EXIT, "restoring original hotkey mask\n"); |
56b6aeb0 | 541 | hotkey_set(hotkey_orig_status, hotkey_orig_mask); |
5fba344c | 542 | } |
56b6aeb0 HMH |
543 | } |
544 | ||
545 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
546 | { | |
547 | int hkey; | |
548 | ||
549 | if (acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) | |
550 | acpi_bus_generate_event(ibm->device, event, hkey); | |
551 | else { | |
552 | printk(IBM_ERR "unknown hotkey event %d\n", event); | |
553 | acpi_bus_generate_event(ibm->device, event, 0); | |
554 | } | |
555 | } | |
556 | ||
78f81cc4 | 557 | static int hotkey_get(int *status, int *mask) |
1da177e4 LT |
558 | { |
559 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
78f81cc4 BD |
560 | return 0; |
561 | ||
562 | if (hotkey_mask_supported) | |
563 | if (!acpi_evalf(hkey_handle, mask, "DHKN", "d")) | |
564 | return 0; | |
565 | ||
566 | return 1; | |
1da177e4 LT |
567 | } |
568 | ||
78f81cc4 | 569 | static int hotkey_set(int status, int mask) |
1da177e4 LT |
570 | { |
571 | int i; | |
572 | ||
573 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1da177e4 LT |
574 | return 0; |
575 | ||
78f81cc4 BD |
576 | if (hotkey_mask_supported) |
577 | for (i = 0; i < 32; i++) { | |
578 | int bit = ((1 << i) & mask) != 0; | |
579 | if (!acpi_evalf(hkey_handle, | |
580 | NULL, "MHKM", "vdd", i + 1, bit)) | |
581 | return 0; | |
582 | } | |
1da177e4 | 583 | |
78f81cc4 | 584 | return 1; |
1da177e4 LT |
585 | } |
586 | ||
78f81cc4 | 587 | static int hotkey_read(char *p) |
1da177e4 LT |
588 | { |
589 | int status, mask; | |
590 | int len = 0; | |
591 | ||
78f81cc4 BD |
592 | if (!hotkey_supported) { |
593 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
594 | return len; | |
595 | } | |
596 | ||
597 | if (!hotkey_get(&status, &mask)) | |
1da177e4 LT |
598 | return -EIO; |
599 | ||
600 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
78f81cc4 | 601 | if (hotkey_mask_supported) { |
1da177e4 LT |
602 | len += sprintf(p + len, "mask:\t\t0x%04x\n", mask); |
603 | len += sprintf(p + len, | |
604 | "commands:\tenable, disable, reset, <mask>\n"); | |
605 | } else { | |
606 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
607 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
608 | } | |
609 | ||
610 | return len; | |
611 | } | |
612 | ||
78f81cc4 | 613 | static int hotkey_write(char *buf) |
1da177e4 LT |
614 | { |
615 | int status, mask; | |
616 | char *cmd; | |
617 | int do_cmd = 0; | |
618 | ||
78f81cc4 | 619 | if (!hotkey_supported) |
1da177e4 LT |
620 | return -ENODEV; |
621 | ||
78f81cc4 BD |
622 | if (!hotkey_get(&status, &mask)) |
623 | return -EIO; | |
624 | ||
1da177e4 LT |
625 | while ((cmd = next_cmd(&buf))) { |
626 | if (strlencmp(cmd, "enable") == 0) { | |
627 | status = 1; | |
628 | } else if (strlencmp(cmd, "disable") == 0) { | |
629 | status = 0; | |
630 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
631 | status = hotkey_orig_status; |
632 | mask = hotkey_orig_mask; | |
1da177e4 LT |
633 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
634 | /* mask set */ | |
635 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
636 | /* mask set */ | |
637 | } else | |
638 | return -EINVAL; | |
639 | do_cmd = 1; | |
640 | } | |
641 | ||
78f81cc4 | 642 | if (do_cmd && !hotkey_set(status, mask)) |
1da177e4 LT |
643 | return -EIO; |
644 | ||
645 | return 0; | |
78f81cc4 | 646 | } |
1da177e4 | 647 | |
a5763f22 HMH |
648 | static struct ibm_struct hotkey_driver_data = { |
649 | .name = "hotkey", | |
650 | .hid = IBM_HKEY_HID, | |
651 | .read = hotkey_read, | |
652 | .write = hotkey_write, | |
653 | .exit = hotkey_exit, | |
654 | .notify = hotkey_notify, | |
655 | .handle = &hkey_handle, | |
656 | .type = ACPI_DEVICE_NOTIFY, | |
657 | }; | |
658 | ||
56b6aeb0 HMH |
659 | /************************************************************************* |
660 | * Bluetooth subdriver | |
661 | */ | |
1da177e4 | 662 | |
78f81cc4 BD |
663 | static int bluetooth_supported; |
664 | ||
a5763f22 | 665 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 666 | { |
fe08bc4b HMH |
667 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
668 | ||
5fba344c HMH |
669 | IBM_HANDLE_INIT(hkey); |
670 | ||
78f81cc4 BD |
671 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
672 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
673 | bluetooth_supported = hkey_handle && | |
674 | acpi_evalf(hkey_handle, NULL, "GBDC", "qv"); | |
1da177e4 | 675 | |
fe08bc4b HMH |
676 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s\n", |
677 | str_supported(bluetooth_supported)); | |
678 | ||
5fba344c | 679 | return (bluetooth_supported)? 0 : 1; |
1da177e4 LT |
680 | } |
681 | ||
78f81cc4 | 682 | static int bluetooth_status(void) |
1da177e4 LT |
683 | { |
684 | int status; | |
685 | ||
78f81cc4 BD |
686 | if (!bluetooth_supported || |
687 | !acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
1da177e4 LT |
688 | status = 0; |
689 | ||
690 | return status; | |
691 | } | |
692 | ||
78f81cc4 | 693 | static int bluetooth_read(char *p) |
1da177e4 LT |
694 | { |
695 | int len = 0; | |
78f81cc4 | 696 | int status = bluetooth_status(); |
1da177e4 | 697 | |
78f81cc4 | 698 | if (!bluetooth_supported) |
1da177e4 LT |
699 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
700 | else if (!(status & 1)) | |
701 | len += sprintf(p + len, "status:\t\tnot installed\n"); | |
702 | else { | |
703 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 1)); | |
704 | len += sprintf(p + len, "commands:\tenable, disable\n"); | |
705 | } | |
706 | ||
707 | return len; | |
708 | } | |
709 | ||
78f81cc4 | 710 | static int bluetooth_write(char *buf) |
1da177e4 | 711 | { |
78f81cc4 | 712 | int status = bluetooth_status(); |
1da177e4 LT |
713 | char *cmd; |
714 | int do_cmd = 0; | |
715 | ||
78f81cc4 BD |
716 | if (!bluetooth_supported) |
717 | return -ENODEV; | |
1da177e4 LT |
718 | |
719 | while ((cmd = next_cmd(&buf))) { | |
720 | if (strlencmp(cmd, "enable") == 0) { | |
721 | status |= 2; | |
722 | } else if (strlencmp(cmd, "disable") == 0) { | |
723 | status &= ~2; | |
724 | } else | |
725 | return -EINVAL; | |
726 | do_cmd = 1; | |
727 | } | |
728 | ||
729 | if (do_cmd && !acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
78f81cc4 | 730 | return -EIO; |
1da177e4 LT |
731 | |
732 | return 0; | |
733 | } | |
734 | ||
a5763f22 HMH |
735 | static struct ibm_struct bluetooth_driver_data = { |
736 | .name = "bluetooth", | |
737 | .read = bluetooth_read, | |
738 | .write = bluetooth_write, | |
739 | }; | |
740 | ||
56b6aeb0 HMH |
741 | /************************************************************************* |
742 | * Wan subdriver | |
743 | */ | |
744 | ||
42adb53c JF |
745 | static int wan_supported; |
746 | ||
a5763f22 | 747 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 748 | { |
fe08bc4b HMH |
749 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
750 | ||
5fba344c HMH |
751 | IBM_HANDLE_INIT(hkey); |
752 | ||
42adb53c JF |
753 | wan_supported = hkey_handle && |
754 | acpi_evalf(hkey_handle, NULL, "GWAN", "qv"); | |
755 | ||
fe08bc4b HMH |
756 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s\n", |
757 | str_supported(wan_supported)); | |
758 | ||
5fba344c | 759 | return (wan_supported)? 0 : 1; |
42adb53c JF |
760 | } |
761 | ||
762 | static int wan_status(void) | |
763 | { | |
764 | int status; | |
765 | ||
8d297264 | 766 | if (!wan_supported || !acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
42adb53c JF |
767 | status = 0; |
768 | ||
769 | return status; | |
770 | } | |
771 | ||
772 | static int wan_read(char *p) | |
773 | { | |
774 | int len = 0; | |
775 | int status = wan_status(); | |
776 | ||
777 | if (!wan_supported) | |
778 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
779 | else if (!(status & 1)) | |
780 | len += sprintf(p + len, "status:\t\tnot installed\n"); | |
781 | else { | |
782 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 1)); | |
783 | len += sprintf(p + len, "commands:\tenable, disable\n"); | |
784 | } | |
785 | ||
786 | return len; | |
787 | } | |
788 | ||
789 | static int wan_write(char *buf) | |
790 | { | |
791 | int status = wan_status(); | |
792 | char *cmd; | |
793 | int do_cmd = 0; | |
794 | ||
795 | if (!wan_supported) | |
796 | return -ENODEV; | |
797 | ||
798 | while ((cmd = next_cmd(&buf))) { | |
799 | if (strlencmp(cmd, "enable") == 0) { | |
800 | status |= 2; | |
801 | } else if (strlencmp(cmd, "disable") == 0) { | |
802 | status &= ~2; | |
803 | } else | |
804 | return -EINVAL; | |
805 | do_cmd = 1; | |
806 | } | |
807 | ||
808 | if (do_cmd && !acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
809 | return -EIO; | |
810 | ||
811 | return 0; | |
812 | } | |
813 | ||
a5763f22 HMH |
814 | static struct ibm_struct wan_driver_data = { |
815 | .name = "wan", | |
816 | .read = wan_read, | |
817 | .write = wan_write, | |
818 | .experimental = 1, | |
819 | }; | |
820 | ||
56b6aeb0 HMH |
821 | /************************************************************************* |
822 | * Video subdriver | |
823 | */ | |
824 | ||
9a8e1738 HMH |
825 | static enum video_access_mode video_supported; |
826 | static int video_orig_autosw; | |
78f81cc4 | 827 | |
56b6aeb0 HMH |
828 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
829 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
830 | "\\_SB.PCI0.VID0", /* 770e */ | |
831 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
832 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
833 | ); /* R30, R31 */ | |
834 | ||
835 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
836 | ||
a5763f22 | 837 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 838 | { |
78f81cc4 BD |
839 | int ivga; |
840 | ||
fe08bc4b HMH |
841 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
842 | ||
5fba344c HMH |
843 | IBM_HANDLE_INIT(vid); |
844 | IBM_HANDLE_INIT(vid2); | |
845 | ||
78f81cc4 BD |
846 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
847 | /* G41, assume IVGA doesn't change */ | |
848 | vid_handle = vid2_handle; | |
849 | ||
850 | if (!vid_handle) | |
851 | /* video switching not supported on R30, R31 */ | |
efa27145 | 852 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
853 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
854 | /* 570 */ | |
efa27145 | 855 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
856 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
857 | /* 600e/x, 770e, 770x */ | |
efa27145 | 858 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
859 | else |
860 | /* all others */ | |
efa27145 | 861 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 862 | |
fe08bc4b HMH |
863 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
864 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
865 | video_supported); | |
866 | ||
5fba344c | 867 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
868 | } |
869 | ||
56b6aeb0 HMH |
870 | static void video_exit(void) |
871 | { | |
fe08bc4b | 872 | dbg_printk(TPACPI_DBG_EXIT, "restoring original video autoswitch mode\n"); |
56b6aeb0 HMH |
873 | acpi_evalf(vid_handle, NULL, "_DOS", "vd", video_orig_autosw); |
874 | } | |
875 | ||
78f81cc4 | 876 | static int video_status(void) |
1da177e4 LT |
877 | { |
878 | int status = 0; | |
879 | int i; | |
880 | ||
efa27145 | 881 | if (video_supported == TPACPI_VIDEO_570) { |
78f81cc4 BD |
882 | if (acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", 0x87)) |
883 | status = i & 3; | |
efa27145 | 884 | } else if (video_supported == TPACPI_VIDEO_770) { |
78f81cc4 BD |
885 | if (acpi_evalf(NULL, &i, "\\VCDL", "d")) |
886 | status |= 0x01 * i; | |
887 | if (acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
888 | status |= 0x02 * i; | |
efa27145 | 889 | } else if (video_supported == TPACPI_VIDEO_NEW) { |
78f81cc4 BD |
890 | acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1); |
891 | if (acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
892 | status |= 0x02 * i; | |
893 | ||
894 | acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0); | |
895 | if (acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
896 | status |= 0x01 * i; | |
897 | if (acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
898 | status |= 0x08 * i; | |
899 | } | |
900 | ||
901 | return status; | |
902 | } | |
1da177e4 | 903 | |
78f81cc4 BD |
904 | static int video_autosw(void) |
905 | { | |
906 | int autosw = 0; | |
1da177e4 | 907 | |
efa27145 | 908 | if (video_supported == TPACPI_VIDEO_570) |
78f81cc4 | 909 | acpi_evalf(vid_handle, &autosw, "SWIT", "d"); |
efa27145 HMH |
910 | else if (video_supported == TPACPI_VIDEO_770 || |
911 | video_supported == TPACPI_VIDEO_NEW) | |
78f81cc4 | 912 | acpi_evalf(vid_handle, &autosw, "^VDEE", "d"); |
1da177e4 | 913 | |
78f81cc4 | 914 | return autosw & 1; |
1da177e4 LT |
915 | } |
916 | ||
78f81cc4 BD |
917 | static int video_switch(void) |
918 | { | |
919 | int autosw = video_autosw(); | |
920 | int ret; | |
921 | ||
922 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) | |
923 | return -EIO; | |
efa27145 | 924 | ret = video_supported == TPACPI_VIDEO_570 ? |
78f81cc4 BD |
925 | acpi_evalf(ec_handle, NULL, "_Q16", "v") : |
926 | acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
927 | acpi_evalf(vid_handle, NULL, "_DOS", "vd", autosw); | |
928 | ||
929 | return ret; | |
930 | } | |
931 | ||
932 | static int video_expand(void) | |
933 | { | |
efa27145 | 934 | if (video_supported == TPACPI_VIDEO_570) |
78f81cc4 | 935 | return acpi_evalf(ec_handle, NULL, "_Q17", "v"); |
efa27145 | 936 | else if (video_supported == TPACPI_VIDEO_770) |
78f81cc4 BD |
937 | return acpi_evalf(vid_handle, NULL, "VEXP", "v"); |
938 | else | |
939 | return acpi_evalf(NULL, NULL, "\\VEXP", "v"); | |
940 | } | |
941 | ||
942 | static int video_switch2(int status) | |
943 | { | |
944 | int ret; | |
945 | ||
efa27145 | 946 | if (video_supported == TPACPI_VIDEO_570) { |
78f81cc4 BD |
947 | ret = acpi_evalf(NULL, NULL, |
948 | "\\_SB.PHS2", "vdd", 0x8b, status | 0x80); | |
efa27145 | 949 | } else if (video_supported == TPACPI_VIDEO_770) { |
78f81cc4 BD |
950 | int autosw = video_autosw(); |
951 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) | |
952 | return -EIO; | |
953 | ||
954 | ret = acpi_evalf(vid_handle, NULL, | |
955 | "ASWT", "vdd", status * 0x100, 0); | |
956 | ||
957 | acpi_evalf(vid_handle, NULL, "_DOS", "vd", autosw); | |
958 | } else { | |
959 | ret = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
960 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
961 | } | |
962 | ||
963 | return ret; | |
964 | } | |
965 | ||
56b6aeb0 HMH |
966 | static int video_read(char *p) |
967 | { | |
968 | int status = video_status(); | |
969 | int autosw = video_autosw(); | |
970 | int len = 0; | |
971 | ||
972 | if (!video_supported) { | |
973 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
974 | return len; | |
975 | } | |
976 | ||
977 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
978 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
979 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 980 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
981 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
982 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
983 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
984 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 985 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
986 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
987 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
988 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
989 | ||
990 | return len; | |
991 | } | |
992 | ||
78f81cc4 | 993 | static int video_write(char *buf) |
1da177e4 LT |
994 | { |
995 | char *cmd; | |
996 | int enable, disable, status; | |
997 | ||
78f81cc4 BD |
998 | if (!video_supported) |
999 | return -ENODEV; | |
1000 | ||
1da177e4 LT |
1001 | enable = disable = 0; |
1002 | ||
1003 | while ((cmd = next_cmd(&buf))) { | |
1004 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
1005 | enable |= 0x01; | |
1006 | } else if (strlencmp(cmd, "lcd_disable") == 0) { | |
1007 | disable |= 0x01; | |
1008 | } else if (strlencmp(cmd, "crt_enable") == 0) { | |
1009 | enable |= 0x02; | |
1010 | } else if (strlencmp(cmd, "crt_disable") == 0) { | |
1011 | disable |= 0x02; | |
efa27145 | 1012 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1013 | strlencmp(cmd, "dvi_enable") == 0) { |
1da177e4 | 1014 | enable |= 0x08; |
efa27145 | 1015 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1016 | strlencmp(cmd, "dvi_disable") == 0) { |
1da177e4 LT |
1017 | disable |= 0x08; |
1018 | } else if (strlencmp(cmd, "auto_enable") == 0) { | |
1019 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) | |
1020 | return -EIO; | |
1021 | } else if (strlencmp(cmd, "auto_disable") == 0) { | |
1022 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 0)) | |
1023 | return -EIO; | |
1024 | } else if (strlencmp(cmd, "video_switch") == 0) { | |
78f81cc4 | 1025 | if (!video_switch()) |
1da177e4 LT |
1026 | return -EIO; |
1027 | } else if (strlencmp(cmd, "expand_toggle") == 0) { | |
78f81cc4 | 1028 | if (!video_expand()) |
1da177e4 LT |
1029 | return -EIO; |
1030 | } else | |
1031 | return -EINVAL; | |
1032 | } | |
1033 | ||
1034 | if (enable || disable) { | |
78f81cc4 BD |
1035 | status = (video_status() & 0x0f & ~disable) | enable; |
1036 | if (!video_switch2(status)) | |
1da177e4 LT |
1037 | return -EIO; |
1038 | } | |
1039 | ||
1040 | return 0; | |
1041 | } | |
1042 | ||
a5763f22 HMH |
1043 | static struct ibm_struct video_driver_data = { |
1044 | .name = "video", | |
1045 | .read = video_read, | |
1046 | .write = video_write, | |
1047 | .exit = video_exit, | |
1048 | }; | |
1049 | ||
56b6aeb0 HMH |
1050 | /************************************************************************* |
1051 | * Light (thinklight) subdriver | |
1052 | */ | |
1da177e4 | 1053 | |
78f81cc4 BD |
1054 | static int light_supported; |
1055 | static int light_status_supported; | |
1056 | ||
56b6aeb0 HMH |
1057 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
1058 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
1059 | ||
a5763f22 | 1060 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 1061 | { |
fe08bc4b HMH |
1062 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
1063 | ||
5fba344c HMH |
1064 | IBM_HANDLE_INIT(ledb); |
1065 | IBM_HANDLE_INIT(lght); | |
1066 | IBM_HANDLE_INIT(cmos); | |
1067 | ||
78f81cc4 BD |
1068 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
1069 | light_supported = (cmos_handle || lght_handle) && !ledb_handle; | |
1070 | ||
1071 | if (light_supported) | |
1072 | /* light status not supported on | |
1073 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
1074 | light_status_supported = acpi_evalf(ec_handle, NULL, | |
1075 | "KBLT", "qv"); | |
1da177e4 | 1076 | |
fe08bc4b HMH |
1077 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
1078 | str_supported(light_supported)); | |
1079 | ||
5fba344c | 1080 | return (light_supported)? 0 : 1; |
1da177e4 LT |
1081 | } |
1082 | ||
78f81cc4 | 1083 | static int light_read(char *p) |
1da177e4 LT |
1084 | { |
1085 | int len = 0; | |
1086 | int status = 0; | |
1087 | ||
78f81cc4 BD |
1088 | if (!light_supported) { |
1089 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1090 | } else if (!light_status_supported) { | |
1091 | len += sprintf(p + len, "status:\t\tunknown\n"); | |
1092 | len += sprintf(p + len, "commands:\ton, off\n"); | |
1093 | } else { | |
1da177e4 LT |
1094 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
1095 | return -EIO; | |
1096 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
1097 | len += sprintf(p + len, "commands:\ton, off\n"); |
1098 | } | |
1da177e4 LT |
1099 | |
1100 | return len; | |
1101 | } | |
1102 | ||
78f81cc4 | 1103 | static int light_write(char *buf) |
1da177e4 LT |
1104 | { |
1105 | int cmos_cmd, lght_cmd; | |
1106 | char *cmd; | |
1107 | int success; | |
78f81cc4 BD |
1108 | |
1109 | if (!light_supported) | |
1110 | return -ENODEV; | |
1111 | ||
1da177e4 LT |
1112 | while ((cmd = next_cmd(&buf))) { |
1113 | if (strlencmp(cmd, "on") == 0) { | |
1114 | cmos_cmd = 0x0c; | |
1115 | lght_cmd = 1; | |
1116 | } else if (strlencmp(cmd, "off") == 0) { | |
1117 | cmos_cmd = 0x0d; | |
1118 | lght_cmd = 0; | |
1119 | } else | |
1120 | return -EINVAL; | |
78f81cc4 | 1121 | |
1da177e4 | 1122 | success = cmos_handle ? |
78f81cc4 BD |
1123 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
1124 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
1125 | if (!success) |
1126 | return -EIO; | |
1127 | } | |
1128 | ||
1129 | return 0; | |
1130 | } | |
1131 | ||
a5763f22 HMH |
1132 | static struct ibm_struct light_driver_data = { |
1133 | .name = "light", | |
1134 | .read = light_read, | |
1135 | .write = light_write, | |
1136 | }; | |
1137 | ||
56b6aeb0 HMH |
1138 | /************************************************************************* |
1139 | * Dock subdriver | |
1140 | */ | |
1da177e4 | 1141 | |
85998248 | 1142 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 HMH |
1143 | |
1144 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ | |
1145 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
1146 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
1147 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
1148 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
1149 | ||
5fba344c HMH |
1150 | /* don't list other alternatives as we install a notify handler on the 570 */ |
1151 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
1152 | ||
1da177e4 LT |
1153 | #define dock_docked() (_sta(dock_handle) & 1) |
1154 | ||
a5763f22 | 1155 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 1156 | { |
fe08bc4b HMH |
1157 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
1158 | ||
5fba344c HMH |
1159 | IBM_HANDLE_INIT(dock); |
1160 | IBM_HANDLE_INIT(pci); | |
1161 | ||
fe08bc4b HMH |
1162 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
1163 | str_supported(dock_handle != NULL)); | |
1164 | ||
5fba344c HMH |
1165 | return (dock_handle)? 0 : 1; |
1166 | } | |
1167 | ||
56b6aeb0 HMH |
1168 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
1169 | { | |
1170 | int docked = dock_docked(); | |
1171 | int pci = ibm->hid && strstr(ibm->hid, IBM_PCI_HID); | |
1172 | ||
1173 | if (event == 1 && !pci) /* 570 */ | |
1174 | acpi_bus_generate_event(ibm->device, event, 1); /* button */ | |
1175 | else if (event == 1 && pci) /* 570 */ | |
1176 | acpi_bus_generate_event(ibm->device, event, 3); /* dock */ | |
1177 | else if (event == 3 && docked) | |
1178 | acpi_bus_generate_event(ibm->device, event, 1); /* button */ | |
1179 | else if (event == 3 && !docked) | |
1180 | acpi_bus_generate_event(ibm->device, event, 2); /* undock */ | |
1181 | else if (event == 0 && docked) | |
1182 | acpi_bus_generate_event(ibm->device, event, 3); /* dock */ | |
1183 | else { | |
1184 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
1185 | event, _sta(dock_handle)); | |
1186 | acpi_bus_generate_event(ibm->device, event, 0); /* unknown */ | |
1187 | } | |
1188 | } | |
1189 | ||
78f81cc4 | 1190 | static int dock_read(char *p) |
1da177e4 LT |
1191 | { |
1192 | int len = 0; | |
1193 | int docked = dock_docked(); | |
1194 | ||
1195 | if (!dock_handle) | |
1196 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1197 | else if (!docked) | |
1198 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
1199 | else { | |
1200 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
1201 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
1202 | } | |
1203 | ||
1204 | return len; | |
1205 | } | |
1206 | ||
78f81cc4 | 1207 | static int dock_write(char *buf) |
1da177e4 LT |
1208 | { |
1209 | char *cmd; | |
1210 | ||
1211 | if (!dock_docked()) | |
78f81cc4 | 1212 | return -ENODEV; |
1da177e4 LT |
1213 | |
1214 | while ((cmd = next_cmd(&buf))) { | |
1215 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
1216 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
1217 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
1218 | return -EIO; |
1219 | } else if (strlencmp(cmd, "dock") == 0) { | |
1220 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
1221 | return -EIO; | |
1222 | } else | |
1223 | return -EINVAL; | |
1da177e4 | 1224 | } |
56b6aeb0 HMH |
1225 | |
1226 | return 0; | |
1da177e4 | 1227 | } |
56b6aeb0 | 1228 | |
a5763f22 HMH |
1229 | static struct ibm_struct dock_driver_data[2] = { |
1230 | { | |
1231 | .name = "dock", | |
1232 | .read = dock_read, | |
1233 | .write = dock_write, | |
1234 | .notify = dock_notify, | |
1235 | .handle = &dock_handle, | |
1236 | .type = ACPI_SYSTEM_NOTIFY, | |
1237 | }, | |
1238 | { | |
1239 | .name = "dock", | |
1240 | .hid = IBM_PCI_HID, | |
1241 | .notify = dock_notify, | |
1242 | .handle = &pci_handle, | |
1243 | .type = ACPI_SYSTEM_NOTIFY, | |
1244 | }, | |
1245 | }; | |
1246 | ||
85998248 | 1247 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
1248 | |
1249 | /************************************************************************* | |
1250 | * Bay subdriver | |
1251 | */ | |
1da177e4 | 1252 | |
85998248 | 1253 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 BD |
1254 | static int bay_status_supported; |
1255 | static int bay_status2_supported; | |
1256 | static int bay_eject_supported; | |
1257 | static int bay_eject2_supported; | |
1da177e4 | 1258 | |
56b6aeb0 HMH |
1259 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
1260 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
1261 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
1262 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
1263 | ); /* A21e, R30, R31 */ | |
1264 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
1265 | "_EJ0", /* all others */ | |
1266 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
1267 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
1268 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
1269 | ); /* all others */ | |
1270 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
1271 | "_EJ0", /* 770x */ | |
1272 | ); /* all others */ | |
1273 | ||
a5763f22 | 1274 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 1275 | { |
fe08bc4b HMH |
1276 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
1277 | ||
5fba344c HMH |
1278 | IBM_HANDLE_INIT(bay); |
1279 | if (bay_handle) | |
1280 | IBM_HANDLE_INIT(bay_ej); | |
1281 | IBM_HANDLE_INIT(bay2); | |
1282 | if (bay2_handle) | |
1283 | IBM_HANDLE_INIT(bay2_ej); | |
1284 | ||
78f81cc4 BD |
1285 | bay_status_supported = bay_handle && |
1286 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
1287 | bay_status2_supported = bay2_handle && | |
1288 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
1289 | ||
1290 | bay_eject_supported = bay_handle && bay_ej_handle && | |
1291 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
1292 | bay_eject2_supported = bay2_handle && bay2_ej_handle && | |
1293 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 1294 | |
fe08bc4b HMH |
1295 | vdbg_printk(TPACPI_DBG_INIT, |
1296 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
1297 | str_supported(bay_status_supported), | |
1298 | str_supported(bay_eject_supported), | |
1299 | str_supported(bay_status2_supported), | |
1300 | str_supported(bay_eject2_supported)); | |
1301 | ||
5fba344c HMH |
1302 | return (bay_status_supported || bay_eject_supported || |
1303 | bay_status2_supported || bay_eject2_supported)? 0 : 1; | |
1da177e4 LT |
1304 | } |
1305 | ||
56b6aeb0 HMH |
1306 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
1307 | { | |
1308 | acpi_bus_generate_event(ibm->device, event, 0); | |
1309 | } | |
1310 | ||
78f81cc4 BD |
1311 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
1312 | ||
1313 | static int bay_read(char *p) | |
1da177e4 LT |
1314 | { |
1315 | int len = 0; | |
78f81cc4 BD |
1316 | int occupied = bay_occupied(bay); |
1317 | int occupied2 = bay_occupied(bay2); | |
1318 | int eject, eject2; | |
1319 | ||
1320 | len += sprintf(p + len, "status:\t\t%s\n", bay_status_supported ? | |
1321 | (occupied ? "occupied" : "unoccupied") : | |
1322 | "not supported"); | |
1323 | if (bay_status2_supported) | |
1324 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? | |
1325 | "occupied" : "unoccupied"); | |
1326 | ||
1327 | eject = bay_eject_supported && occupied; | |
1328 | eject2 = bay_eject2_supported && occupied2; | |
1329 | ||
1330 | if (eject && eject2) | |
1331 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
1332 | else if (eject) | |
1da177e4 | 1333 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
1334 | else if (eject2) |
1335 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
1336 | |
1337 | return len; | |
1338 | } | |
1339 | ||
78f81cc4 | 1340 | static int bay_write(char *buf) |
1da177e4 LT |
1341 | { |
1342 | char *cmd; | |
1343 | ||
78f81cc4 BD |
1344 | if (!bay_eject_supported && !bay_eject2_supported) |
1345 | return -ENODEV; | |
1346 | ||
1da177e4 | 1347 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 BD |
1348 | if (bay_eject_supported && strlencmp(cmd, "eject") == 0) { |
1349 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) | |
1350 | return -EIO; | |
1351 | } else if (bay_eject2_supported && | |
1352 | strlencmp(cmd, "eject2") == 0) { | |
1353 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
1354 | return -EIO; |
1355 | } else | |
1356 | return -EINVAL; | |
1357 | } | |
1358 | ||
1359 | return 0; | |
78f81cc4 | 1360 | } |
a5763f22 HMH |
1361 | |
1362 | static struct ibm_struct bay_driver_data = { | |
1363 | .name = "bay", | |
1364 | .read = bay_read, | |
1365 | .write = bay_write, | |
1366 | .notify = bay_notify, | |
1367 | .handle = &bay_handle, | |
1368 | .type = ACPI_SYSTEM_NOTIFY, | |
1369 | }; | |
1370 | ||
85998248 | 1371 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 1372 | |
56b6aeb0 HMH |
1373 | /************************************************************************* |
1374 | * CMOS subdriver | |
1375 | */ | |
1376 | ||
a5763f22 | 1377 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 1378 | { |
fe08bc4b HMH |
1379 | vdbg_printk(TPACPI_DBG_INIT, |
1380 | "initializing cmos commands subdriver\n"); | |
1381 | ||
5fba344c HMH |
1382 | IBM_HANDLE_INIT(cmos); |
1383 | ||
fe08bc4b HMH |
1384 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
1385 | str_supported(cmos_handle != NULL)); | |
5fba344c HMH |
1386 | return (cmos_handle)? 0 : 1; |
1387 | } | |
1388 | ||
56b6aeb0 | 1389 | static int cmos_eval(int cmos_cmd) |
1da177e4 | 1390 | { |
56b6aeb0 HMH |
1391 | if (cmos_handle) |
1392 | return acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd); | |
1393 | else | |
1394 | return 1; | |
1da177e4 LT |
1395 | } |
1396 | ||
78f81cc4 | 1397 | static int cmos_read(char *p) |
1da177e4 LT |
1398 | { |
1399 | int len = 0; | |
1400 | ||
78f81cc4 BD |
1401 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1402 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
1403 | if (!cmos_handle) |
1404 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1405 | else { | |
1406 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 1407 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
1408 | } |
1409 | ||
1410 | return len; | |
1411 | } | |
1412 | ||
78f81cc4 | 1413 | static int cmos_write(char *buf) |
1da177e4 LT |
1414 | { |
1415 | char *cmd; | |
1416 | int cmos_cmd; | |
1417 | ||
1418 | if (!cmos_handle) | |
1419 | return -EINVAL; | |
1420 | ||
1421 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
1422 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
1423 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
1424 | /* cmos_cmd set */ |
1425 | } else | |
1426 | return -EINVAL; | |
1427 | ||
78f81cc4 | 1428 | if (!cmos_eval(cmos_cmd)) |
1da177e4 LT |
1429 | return -EIO; |
1430 | } | |
1431 | ||
1432 | return 0; | |
78f81cc4 BD |
1433 | } |
1434 | ||
a5763f22 HMH |
1435 | static struct ibm_struct cmos_driver_data = { |
1436 | .name = "cmos", | |
1437 | .read = cmos_read, | |
1438 | .write = cmos_write, | |
1439 | }; | |
56b6aeb0 HMH |
1440 | |
1441 | /************************************************************************* | |
1442 | * LED subdriver | |
1443 | */ | |
1444 | ||
9a8e1738 | 1445 | static enum led_access_mode led_supported; |
78f81cc4 | 1446 | |
56b6aeb0 HMH |
1447 | IBM_HANDLE(led, ec, "SLED", /* 570 */ |
1448 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
1449 | "LED", /* all others */ | |
1450 | ); /* R30, R31 */ | |
1451 | ||
a5763f22 | 1452 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 1453 | { |
fe08bc4b HMH |
1454 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
1455 | ||
5fba344c HMH |
1456 | IBM_HANDLE_INIT(led); |
1457 | ||
78f81cc4 BD |
1458 | if (!led_handle) |
1459 | /* led not supported on R30, R31 */ | |
efa27145 | 1460 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
1461 | else if (strlencmp(led_path, "SLED") == 0) |
1462 | /* 570 */ | |
efa27145 | 1463 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
1464 | else if (strlencmp(led_path, "SYSL") == 0) |
1465 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 1466 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
1467 | else |
1468 | /* all others */ | |
efa27145 | 1469 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 1470 | |
fe08bc4b HMH |
1471 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
1472 | str_supported(led_supported), led_supported); | |
1473 | ||
5fba344c | 1474 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
1475 | } |
1476 | ||
1477 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
1478 | ||
1479 | static int led_read(char *p) | |
1da177e4 LT |
1480 | { |
1481 | int len = 0; | |
1482 | ||
78f81cc4 BD |
1483 | if (!led_supported) { |
1484 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1485 | return len; | |
1486 | } | |
1487 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
1488 | ||
efa27145 | 1489 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
1490 | /* 570 */ |
1491 | int i, status; | |
1492 | for (i = 0; i < 8; i++) { | |
1493 | if (!acpi_evalf(ec_handle, | |
1494 | &status, "GLED", "dd", 1 << i)) | |
1495 | return -EIO; | |
1496 | len += sprintf(p + len, "%d:\t\t%s\n", | |
1497 | i, led_status(status)); | |
1498 | } | |
1499 | } | |
1500 | ||
1da177e4 | 1501 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 1502 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
1503 | |
1504 | return len; | |
1505 | } | |
1506 | ||
78f81cc4 BD |
1507 | /* off, on, blink */ |
1508 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
1509 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
1510 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
1511 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
1512 | ||
78f81cc4 | 1513 | static int led_write(char *buf) |
1da177e4 LT |
1514 | { |
1515 | char *cmd; | |
78f81cc4 BD |
1516 | int led, ind, ret; |
1517 | ||
1518 | if (!led_supported) | |
1519 | return -ENODEV; | |
1da177e4 LT |
1520 | |
1521 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 1522 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
1523 | return -EINVAL; |
1524 | ||
78f81cc4 BD |
1525 | if (strstr(cmd, "off")) { |
1526 | ind = 0; | |
1da177e4 | 1527 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
1528 | ind = 1; |
1529 | } else if (strstr(cmd, "blink")) { | |
1530 | ind = 2; | |
1da177e4 LT |
1531 | } else |
1532 | return -EINVAL; | |
78f81cc4 | 1533 | |
efa27145 | 1534 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
1535 | /* 570 */ |
1536 | led = 1 << led; | |
1da177e4 | 1537 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 1538 | led, led_sled_arg1[ind])) |
1da177e4 | 1539 | return -EIO; |
efa27145 | 1540 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
1541 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
1542 | led = 1 << led; | |
efa27145 | 1543 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
1544 | if (ret >= 0) |
1545 | ret = | |
efa27145 | 1546 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 1547 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
1548 | if (ret >= 0) |
1549 | ret = | |
efa27145 | 1550 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 1551 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
1552 | if (ret < 0) |
1553 | return ret; | |
1554 | } else { | |
1555 | /* all others */ | |
1556 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
1557 | led, led_led_arg1[ind])) | |
1da177e4 | 1558 | return -EIO; |
78f81cc4 BD |
1559 | } |
1560 | } | |
1561 | ||
1562 | return 0; | |
1563 | } | |
1564 | ||
a5763f22 HMH |
1565 | static struct ibm_struct led_driver_data = { |
1566 | .name = "led", | |
1567 | .read = led_read, | |
1568 | .write = led_write, | |
1569 | }; | |
1570 | ||
56b6aeb0 HMH |
1571 | /************************************************************************* |
1572 | * Beep subdriver | |
1573 | */ | |
1574 | ||
1575 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
1576 | ||
a5763f22 | 1577 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 1578 | { |
fe08bc4b HMH |
1579 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
1580 | ||
5fba344c HMH |
1581 | IBM_HANDLE_INIT(beep); |
1582 | ||
fe08bc4b HMH |
1583 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
1584 | str_supported(beep_handle != NULL)); | |
1585 | ||
5fba344c HMH |
1586 | return (beep_handle)? 0 : 1; |
1587 | } | |
1588 | ||
78f81cc4 BD |
1589 | static int beep_read(char *p) |
1590 | { | |
1591 | int len = 0; | |
1592 | ||
1593 | if (!beep_handle) | |
1594 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1595 | else { | |
1596 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
1597 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
1598 | } | |
1599 | ||
1600 | return len; | |
1601 | } | |
1602 | ||
1603 | static int beep_write(char *buf) | |
1604 | { | |
1605 | char *cmd; | |
1606 | int beep_cmd; | |
1607 | ||
1608 | if (!beep_handle) | |
1609 | return -ENODEV; | |
1610 | ||
1611 | while ((cmd = next_cmd(&buf))) { | |
1612 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
1613 | beep_cmd >= 0 && beep_cmd <= 17) { | |
1614 | /* beep_cmd set */ | |
1615 | } else | |
1616 | return -EINVAL; | |
1617 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
1618 | return -EIO; | |
1619 | } | |
1620 | ||
1621 | return 0; | |
1622 | } | |
1623 | ||
a5763f22 HMH |
1624 | static struct ibm_struct beep_driver_data = { |
1625 | .name = "beep", | |
1626 | .read = beep_read, | |
1627 | .write = beep_write, | |
1628 | }; | |
1629 | ||
56b6aeb0 HMH |
1630 | /************************************************************************* |
1631 | * Thermal subdriver | |
1632 | */ | |
78f81cc4 | 1633 | |
a26f878a | 1634 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 1635 | |
a5763f22 | 1636 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 1637 | { |
60eb0b35 HMH |
1638 | u8 t, ta1, ta2; |
1639 | int i; | |
5fba344c HMH |
1640 | int acpi_tmp7; |
1641 | ||
fe08bc4b HMH |
1642 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
1643 | ||
5fba344c | 1644 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 HMH |
1645 | |
1646 | if (ibm_thinkpad_ec_found && experimental) { | |
1647 | /* | |
1648 | * Direct EC access mode: sensors at registers | |
1649 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
1650 | * non-implemented, thermal sensors return 0x80 when | |
1651 | * not available | |
1652 | */ | |
78f81cc4 | 1653 | |
60eb0b35 HMH |
1654 | ta1 = ta2 = 0; |
1655 | for (i = 0; i < 8; i++) { | |
1656 | if (likely(acpi_ec_read(0x78 + i, &t))) { | |
1657 | ta1 |= t; | |
1658 | } else { | |
1659 | ta1 = 0; | |
1660 | break; | |
1661 | } | |
1662 | if (likely(acpi_ec_read(0xC0 + i, &t))) { | |
1663 | ta2 |= t; | |
1664 | } else { | |
1665 | ta1 = 0; | |
1666 | break; | |
1667 | } | |
1668 | } | |
1669 | if (ta1 == 0) { | |
1670 | /* This is sheer paranoia, but we handle it anyway */ | |
1671 | if (acpi_tmp7) { | |
1672 | printk(IBM_ERR | |
1673 | "ThinkPad ACPI EC access misbehaving, " | |
1674 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 1675 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 HMH |
1676 | } else { |
1677 | printk(IBM_ERR | |
1678 | "ThinkPad ACPI EC access misbehaving, " | |
1679 | "disabling thermal sensors access\n"); | |
efa27145 | 1680 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
1681 | } |
1682 | } else { | |
1683 | thermal_read_mode = | |
1684 | (ta2 != 0) ? | |
efa27145 | 1685 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
1686 | } |
1687 | } else if (acpi_tmp7) { | |
a26f878a HMH |
1688 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
1689 | /* 600e/x, 770e, 770x */ | |
efa27145 | 1690 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
1691 | } else { |
1692 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 1693 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
1694 | } |
1695 | } else { | |
1696 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 1697 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 1698 | } |
78f81cc4 | 1699 | |
fe08bc4b HMH |
1700 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
1701 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
1702 | thermal_read_mode); | |
1703 | ||
5fba344c | 1704 | return (thermal_read_mode != TPACPI_THERMAL_NONE)? 0 : 1; |
78f81cc4 BD |
1705 | } |
1706 | ||
a26f878a | 1707 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) |
78f81cc4 | 1708 | { |
a26f878a | 1709 | int i, t; |
60eb0b35 | 1710 | s8 tmp; |
a26f878a | 1711 | char tmpi[] = "TMPi"; |
78f81cc4 | 1712 | |
a26f878a HMH |
1713 | if (!s) |
1714 | return -EINVAL; | |
78f81cc4 | 1715 | |
a26f878a | 1716 | switch (thermal_read_mode) { |
efa27145 HMH |
1717 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 |
1718 | case TPACPI_THERMAL_TPEC_16: | |
60eb0b35 HMH |
1719 | for (i = 0; i < 8; i++) { |
1720 | if (!acpi_ec_read(0xC0 + i, &tmp)) | |
1721 | return -EIO; | |
1722 | s->temp[i + 8] = tmp * 1000; | |
1723 | } | |
1724 | /* fallthrough */ | |
1725 | #endif | |
efa27145 | 1726 | case TPACPI_THERMAL_TPEC_8: |
60eb0b35 HMH |
1727 | for (i = 0; i < 8; i++) { |
1728 | if (!acpi_ec_read(0x78 + i, &tmp)) | |
78f81cc4 | 1729 | return -EIO; |
60eb0b35 HMH |
1730 | s->temp[i] = tmp * 1000; |
1731 | } | |
efa27145 | 1732 | return (thermal_read_mode == TPACPI_THERMAL_TPEC_16) ? 16 : 8; |
78f81cc4 | 1733 | |
efa27145 | 1734 | case TPACPI_THERMAL_ACPI_UPDT: |
a26f878a HMH |
1735 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) |
1736 | return -EIO; | |
78f81cc4 BD |
1737 | for (i = 0; i < 8; i++) { |
1738 | tmpi[3] = '0' + i; | |
1739 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
1740 | return -EIO; | |
a26f878a | 1741 | s->temp[i] = (t - 2732) * 100; |
78f81cc4 | 1742 | } |
a26f878a | 1743 | return 8; |
78f81cc4 | 1744 | |
efa27145 | 1745 | case TPACPI_THERMAL_ACPI_TMP07: |
78f81cc4 BD |
1746 | for (i = 0; i < 8; i++) { |
1747 | tmpi[3] = '0' + i; | |
1748 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
1749 | return -EIO; | |
a26f878a | 1750 | s->temp[i] = t * 1000; |
78f81cc4 | 1751 | } |
a26f878a | 1752 | return 8; |
78f81cc4 | 1753 | |
efa27145 | 1754 | case TPACPI_THERMAL_NONE: |
a26f878a HMH |
1755 | default: |
1756 | return 0; | |
78f81cc4 | 1757 | } |
a26f878a HMH |
1758 | } |
1759 | ||
1760 | static int thermal_read(char *p) | |
1761 | { | |
1762 | int len = 0; | |
1763 | int n, i; | |
1764 | struct ibm_thermal_sensors_struct t; | |
1765 | ||
1766 | n = thermal_get_sensors(&t); | |
1767 | if (unlikely(n < 0)) | |
1768 | return n; | |
1769 | ||
1770 | len += sprintf(p + len, "temperatures:\t"); | |
1771 | ||
1772 | if (n > 0) { | |
1773 | for (i = 0; i < (n - 1); i++) | |
1774 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
1775 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
1776 | } else | |
1777 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
1778 | |
1779 | return len; | |
1780 | } | |
1781 | ||
a5763f22 HMH |
1782 | static struct ibm_struct thermal_driver_data = { |
1783 | .name = "thermal", | |
1784 | .read = thermal_read, | |
1785 | }; | |
1786 | ||
56b6aeb0 HMH |
1787 | /************************************************************************* |
1788 | * EC Dump subdriver | |
1789 | */ | |
1790 | ||
78f81cc4 BD |
1791 | static u8 ecdump_regs[256]; |
1792 | ||
1793 | static int ecdump_read(char *p) | |
1794 | { | |
1795 | int len = 0; | |
1796 | int i, j; | |
1797 | u8 v; | |
1798 | ||
1799 | len += sprintf(p + len, "EC " | |
1800 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
1801 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
1802 | for (i = 0; i < 256; i += 16) { | |
1803 | len += sprintf(p + len, "EC 0x%02x:", i); | |
1804 | for (j = 0; j < 16; j++) { | |
1805 | if (!acpi_ec_read(i + j, &v)) | |
1806 | break; | |
1807 | if (v != ecdump_regs[i + j]) | |
1808 | len += sprintf(p + len, " *%02x", v); | |
1809 | else | |
1810 | len += sprintf(p + len, " %02x", v); | |
1811 | ecdump_regs[i + j] = v; | |
1812 | } | |
1813 | len += sprintf(p + len, "\n"); | |
1814 | if (j != 16) | |
1815 | break; | |
1816 | } | |
1817 | ||
1818 | /* These are way too dangerous to advertise openly... */ | |
1819 | #if 0 | |
1820 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
1821 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
1822 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
1823 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
1824 | #endif | |
1825 | return len; | |
1826 | } | |
1827 | ||
1828 | static int ecdump_write(char *buf) | |
1829 | { | |
1830 | char *cmd; | |
1831 | int i, v; | |
1832 | ||
1833 | while ((cmd = next_cmd(&buf))) { | |
1834 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
1835 | /* i and v set */ | |
1836 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
1837 | /* i and v set */ | |
1838 | } else | |
1839 | return -EINVAL; | |
1840 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
1841 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
1842 | return -EIO; |
1843 | } else | |
1844 | return -EINVAL; | |
1845 | } | |
1846 | ||
1847 | return 0; | |
78f81cc4 BD |
1848 | } |
1849 | ||
a5763f22 HMH |
1850 | static struct ibm_struct ecdump_driver_data = { |
1851 | .name = "ecdump", | |
1852 | .read = ecdump_read, | |
1853 | .write = ecdump_write, | |
1854 | .experimental = 1, | |
1855 | }; | |
1856 | ||
56b6aeb0 HMH |
1857 | /************************************************************************* |
1858 | * Backlight/brightness subdriver | |
1859 | */ | |
1860 | ||
1861 | static struct backlight_device *ibm_backlight_device = NULL; | |
1862 | ||
1863 | static struct backlight_ops ibm_backlight_data = { | |
1864 | .get_brightness = brightness_get, | |
1865 | .update_status = brightness_update_status, | |
1866 | }; | |
1867 | ||
a5763f22 | 1868 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
1869 | { |
1870 | int b; | |
1871 | ||
fe08bc4b HMH |
1872 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
1873 | ||
56b6aeb0 HMH |
1874 | b = brightness_get(NULL); |
1875 | if (b < 0) | |
1876 | return b; | |
1877 | ||
1878 | ibm_backlight_device = backlight_device_register("ibm", NULL, NULL, | |
1879 | &ibm_backlight_data); | |
1880 | if (IS_ERR(ibm_backlight_device)) { | |
1881 | printk(IBM_ERR "Could not register backlight device\n"); | |
1882 | return PTR_ERR(ibm_backlight_device); | |
1883 | } | |
fe08bc4b | 1884 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 HMH |
1885 | |
1886 | ibm_backlight_device->props.max_brightness = 7; | |
1887 | ibm_backlight_device->props.brightness = b; | |
1888 | backlight_update_status(ibm_backlight_device); | |
1889 | ||
1890 | return 0; | |
1891 | } | |
1892 | ||
1893 | static void brightness_exit(void) | |
1894 | { | |
1895 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
1896 | vdbg_printk(TPACPI_DBG_EXIT, |
1897 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
1898 | backlight_device_unregister(ibm_backlight_device); |
1899 | ibm_backlight_device = NULL; | |
1900 | } | |
1901 | } | |
1902 | ||
1903 | static int brightness_update_status(struct backlight_device *bd) | |
1904 | { | |
1905 | return brightness_set( | |
1906 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
1907 | bd->props.power == FB_BLANK_UNBLANK) ? | |
1908 | bd->props.brightness : 0); | |
1909 | } | |
1910 | ||
8acb0250 HM |
1911 | static int brightness_get(struct backlight_device *bd) |
1912 | { | |
8d297264 HMH |
1913 | u8 level; |
1914 | if (!acpi_ec_read(brightness_offset, &level)) | |
1915 | return -EIO; | |
8acb0250 | 1916 | |
8d297264 | 1917 | level &= 0x7; |
fb87a811 | 1918 | |
8d297264 | 1919 | return level; |
8acb0250 HM |
1920 | } |
1921 | ||
8acb0250 | 1922 | static int brightness_set(int value) |
1da177e4 | 1923 | { |
78f81cc4 | 1924 | int cmos_cmd, inc, i; |
8acb0250 HM |
1925 | int current_value = brightness_get(NULL); |
1926 | ||
1927 | value &= 7; | |
1928 | ||
56b6aeb0 | 1929 | cmos_cmd = value > current_value ? TP_CMOS_BRIGHTNESS_UP : TP_CMOS_BRIGHTNESS_DOWN; |
8acb0250 HM |
1930 | inc = value > current_value ? 1 : -1; |
1931 | for (i = current_value; i != value; i += inc) { | |
1932 | if (!cmos_eval(cmos_cmd)) | |
1933 | return -EIO; | |
1934 | if (!acpi_ec_write(brightness_offset, i + inc)) | |
1935 | return -EIO; | |
1936 | } | |
1937 | ||
1938 | return 0; | |
1939 | } | |
1940 | ||
56b6aeb0 HMH |
1941 | static int brightness_read(char *p) |
1942 | { | |
1943 | int len = 0; | |
1944 | int level; | |
1945 | ||
1946 | if ((level = brightness_get(NULL)) < 0) { | |
1947 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
1948 | } else { | |
1949 | len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); | |
1950 | len += sprintf(p + len, "commands:\tup, down\n"); | |
1951 | len += sprintf(p + len, "commands:\tlevel <level>" | |
1952 | " (<level> is 0-7)\n"); | |
1953 | } | |
1954 | ||
1955 | return len; | |
1956 | } | |
1957 | ||
8acb0250 HM |
1958 | static int brightness_write(char *buf) |
1959 | { | |
1960 | int level; | |
78f81cc4 | 1961 | int new_level; |
1da177e4 | 1962 | char *cmd; |
1da177e4 LT |
1963 | |
1964 | while ((cmd = next_cmd(&buf))) { | |
8acb0250 HM |
1965 | if ((level = brightness_get(NULL)) < 0) |
1966 | return level; | |
78f81cc4 BD |
1967 | level &= 7; |
1968 | ||
1969 | if (strlencmp(cmd, "up") == 0) { | |
1970 | new_level = level == 7 ? 7 : level + 1; | |
1971 | } else if (strlencmp(cmd, "down") == 0) { | |
1972 | new_level = level == 0 ? 0 : level - 1; | |
1973 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
1974 | new_level >= 0 && new_level <= 7) { | |
1975 | /* new_level set */ | |
1976 | } else | |
1977 | return -EINVAL; | |
1978 | ||
8acb0250 | 1979 | brightness_set(new_level); |
78f81cc4 BD |
1980 | } |
1981 | ||
1982 | return 0; | |
1983 | } | |
1984 | ||
a5763f22 HMH |
1985 | static struct ibm_struct brightness_driver_data = { |
1986 | .name = "brightness", | |
1987 | .read = brightness_read, | |
1988 | .write = brightness_write, | |
1989 | .exit = brightness_exit, | |
1990 | }; | |
1991 | ||
56b6aeb0 HMH |
1992 | /************************************************************************* |
1993 | * Volume subdriver | |
1994 | */ | |
fb87a811 | 1995 | |
78f81cc4 BD |
1996 | static int volume_read(char *p) |
1997 | { | |
1998 | int len = 0; | |
1999 | u8 level; | |
2000 | ||
2001 | if (!acpi_ec_read(volume_offset, &level)) { | |
2002 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
2003 | } else { | |
2004 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
2005 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
2006 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
2007 | len += sprintf(p + len, "commands:\tlevel <level>" | |
2008 | " (<level> is 0-15)\n"); | |
2009 | } | |
2010 | ||
2011 | return len; | |
2012 | } | |
2013 | ||
78f81cc4 BD |
2014 | static int volume_write(char *buf) |
2015 | { | |
2016 | int cmos_cmd, inc, i; | |
2017 | u8 level, mute; | |
2018 | int new_level, new_mute; | |
2019 | char *cmd; | |
2020 | ||
2021 | while ((cmd = next_cmd(&buf))) { | |
2022 | if (!acpi_ec_read(volume_offset, &level)) | |
2023 | return -EIO; | |
2024 | new_mute = mute = level & 0x40; | |
2025 | new_level = level = level & 0xf; | |
2026 | ||
2027 | if (strlencmp(cmd, "up") == 0) { | |
2028 | if (mute) | |
2029 | new_mute = 0; | |
2030 | else | |
2031 | new_level = level == 15 ? 15 : level + 1; | |
2032 | } else if (strlencmp(cmd, "down") == 0) { | |
2033 | if (mute) | |
2034 | new_mute = 0; | |
2035 | else | |
2036 | new_level = level == 0 ? 0 : level - 1; | |
2037 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
2038 | new_level >= 0 && new_level <= 15) { | |
2039 | /* new_level set */ | |
2040 | } else if (strlencmp(cmd, "mute") == 0) { | |
2041 | new_mute = 0x40; | |
1da177e4 LT |
2042 | } else |
2043 | return -EINVAL; | |
2044 | ||
78f81cc4 | 2045 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 2046 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
2047 | inc = new_level > level ? 1 : -1; |
2048 | ||
2049 | if (mute && (!cmos_eval(cmos_cmd) || | |
2050 | !acpi_ec_write(volume_offset, level))) | |
2051 | return -EIO; | |
2052 | ||
2053 | for (i = level; i != new_level; i += inc) | |
2054 | if (!cmos_eval(cmos_cmd) || | |
2055 | !acpi_ec_write(volume_offset, i + inc)) | |
2056 | return -EIO; | |
2057 | ||
e062e034 | 2058 | if (mute && (!cmos_eval(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
2059 | !acpi_ec_write(volume_offset, |
2060 | new_level + mute))) | |
2061 | return -EIO; | |
2062 | } | |
2063 | ||
2064 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 2065 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 BD |
2066 | |
2067 | if (!cmos_eval(cmos_cmd) || | |
2068 | !acpi_ec_write(volume_offset, level + new_mute)) | |
2069 | return -EIO; | |
2070 | } | |
2071 | } | |
2072 | ||
2073 | return 0; | |
2074 | } | |
2075 | ||
a5763f22 HMH |
2076 | static struct ibm_struct volume_driver_data = { |
2077 | .name = "volume", | |
2078 | .read = volume_read, | |
2079 | .write = volume_write, | |
2080 | }; | |
56b6aeb0 HMH |
2081 | |
2082 | /************************************************************************* | |
2083 | * Fan subdriver | |
2084 | */ | |
2085 | ||
2086 | /* | |
2087 | * FAN ACCESS MODES | |
2088 | * | |
efa27145 | 2089 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
2090 | * ACPI GFAN method: returns fan level |
2091 | * | |
efa27145 | 2092 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 2093 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 2094 | * |
efa27145 | 2095 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
2096 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
2097 | * | |
f51d1a39 HMH |
2098 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
2099 | * it for writing. | |
56b6aeb0 | 2100 | * |
efa27145 | 2101 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
2102 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
2103 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
2104 | * |
2105 | * Fan speed changes of any sort (including those caused by the | |
2106 | * disengaged mode) are usually done slowly by the firmware as the | |
2107 | * maximum ammount of fan duty cycle change per second seems to be | |
2108 | * limited. | |
2109 | * | |
2110 | * Reading is not available if GFAN exists. | |
2111 | * Writing is not available if SFAN exists. | |
2112 | * | |
2113 | * Bits | |
2114 | * 7 automatic mode engaged; | |
2115 | * (default operation mode of the ThinkPad) | |
2116 | * fan level is ignored in this mode. | |
f51d1a39 | 2117 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 2118 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
2119 | * the tachometer while the fan controller ramps up |
2120 | * the speed (which can take up to a few *minutes*). | |
2121 | * Speeds up fan to 100% duty-cycle, which is far above | |
2122 | * the standard RPM levels. It is not impossible that | |
2123 | * it could cause hardware damage. | |
56b6aeb0 HMH |
2124 | * 5-3 unused in some models. Extra bits for fan level |
2125 | * in others, but still useless as all values above | |
2126 | * 7 map to the same speed as level 7 in these models. | |
2127 | * 2-0 fan level (0..7 usually) | |
2128 | * 0x00 = stop | |
2129 | * 0x07 = max (set when temperatures critical) | |
2130 | * Some ThinkPads may have other levels, see | |
efa27145 | 2131 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
2132 | * |
2133 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
2134 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
2135 | * does so, its initial value is meaningless (0x07). | |
2136 | * | |
2137 | * For firmware bugs, refer to: | |
2138 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
2139 | * | |
2140 | * ---- | |
2141 | * | |
2142 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
2143 | * Main fan tachometer reading (in RPM) | |
2144 | * | |
2145 | * This register is present on all ThinkPads with a new-style EC, and | |
2146 | * it is known not to be present on the A21m/e, and T22, as there is | |
2147 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
2148 | * ThinkPads from this same time period (and earlier) probably lack the | |
2149 | * tachometer as well. | |
2150 | * | |
2151 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
2152 | * was never fixed by IBM to report the EC firmware version string | |
2153 | * probably support the tachometer (like the early X models), so | |
2154 | * detecting it is quite hard. We need more data to know for sure. | |
2155 | * | |
2156 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
2157 | * might result. | |
2158 | * | |
f51d1a39 HMH |
2159 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
2160 | * mode. | |
56b6aeb0 HMH |
2161 | * |
2162 | * For firmware bugs, refer to: | |
2163 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
2164 | * | |
efa27145 | 2165 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
2166 | * ThinkPad X31, X40, X41. Not available in the X60. |
2167 | * | |
2168 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
2169 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
2170 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
2171 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
2172 | * | |
2173 | * The speeds are stored on handles | |
2174 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
2175 | * | |
2176 | * There are three default speed sets, acessible as handles: | |
2177 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
2178 | * | |
2179 | * ACPI DSDT switches which set is in use depending on various | |
2180 | * factors. | |
2181 | * | |
efa27145 | 2182 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
2183 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
2184 | * but the ACPI tables just mention level 7. | |
2185 | */ | |
2186 | ||
69ba91cb HMH |
2187 | static enum fan_status_access_mode fan_status_access_mode; |
2188 | static enum fan_control_access_mode fan_control_access_mode; | |
2189 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 2190 | |
778b4d74 HMH |
2191 | static int fan_control_status_known; |
2192 | static u8 fan_control_initial_status; | |
2193 | ||
25c68a33 | 2194 | static void fan_watchdog_fire(struct work_struct *ignored); |
16663a87 | 2195 | static int fan_watchdog_maxinterval; |
25c68a33 | 2196 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 2197 | |
56b6aeb0 HMH |
2198 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
2199 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
2200 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
2201 | ); /* all others */ | |
2202 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
2203 | "JFNS", /* 770x-JL */ | |
2204 | ); /* all others */ | |
2205 | ||
a5763f22 | 2206 | static int __init fan_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2207 | { |
fe08bc4b HMH |
2208 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); |
2209 | ||
efa27145 HMH |
2210 | fan_status_access_mode = TPACPI_FAN_NONE; |
2211 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
69ba91cb | 2212 | fan_control_commands = 0; |
778b4d74 | 2213 | fan_control_status_known = 1; |
16663a87 | 2214 | fan_watchdog_maxinterval = 0; |
78f81cc4 | 2215 | |
5fba344c HMH |
2216 | IBM_HANDLE_INIT(fans); |
2217 | IBM_HANDLE_INIT(gfan); | |
2218 | IBM_HANDLE_INIT(sfan); | |
2219 | ||
78f81cc4 BD |
2220 | if (gfan_handle) { |
2221 | /* 570, 600e/x, 770e, 770x */ | |
efa27145 | 2222 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; |
69ba91cb HMH |
2223 | } else { |
2224 | /* all other ThinkPads: note that even old-style | |
2225 | * ThinkPad ECs supports the fan control register */ | |
778b4d74 HMH |
2226 | if (likely(acpi_ec_read(fan_status_offset, |
2227 | &fan_control_initial_status))) { | |
efa27145 | 2228 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; |
778b4d74 HMH |
2229 | |
2230 | /* In some ThinkPads, neither the EC nor the ACPI | |
2231 | * DSDT initialize the fan status, and it ends up | |
2232 | * being set to 0x07 when it *could* be either | |
2233 | * 0x07 or 0x80. | |
2234 | * | |
2235 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
2236 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
2237 | * to be buggy. */ | |
2238 | if (fan_control_initial_status == 0x07 && | |
2239 | ibm_thinkpad_ec_found && | |
2240 | ((ibm_thinkpad_ec_found[0] == '1' && | |
2241 | ibm_thinkpad_ec_found[1] == 'Y') || | |
2242 | (ibm_thinkpad_ec_found[0] == '7' && | |
2243 | (ibm_thinkpad_ec_found[1] == '6' || | |
2244 | ibm_thinkpad_ec_found[1] == '8' || | |
2245 | ibm_thinkpad_ec_found[1] == '0')) | |
2246 | )) { | |
2247 | printk(IBM_NOTICE | |
2248 | "fan_init: initial fan status is " | |
2249 | "unknown, assuming it is in auto " | |
2250 | "mode\n"); | |
2251 | fan_control_status_known = 0; | |
2252 | } | |
69ba91cb HMH |
2253 | } else { |
2254 | printk(IBM_ERR | |
2255 | "ThinkPad ACPI EC access misbehaving, " | |
2256 | "fan status and control unavailable\n"); | |
5fba344c | 2257 | return 1; |
69ba91cb HMH |
2258 | } |
2259 | } | |
78f81cc4 | 2260 | |
69ba91cb HMH |
2261 | if (sfan_handle) { |
2262 | /* 570, 770x-JL */ | |
efa27145 | 2263 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; |
1c6a334e | 2264 | fan_control_commands |= |
efa27145 | 2265 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; |
78f81cc4 | 2266 | } else { |
69ba91cb HMH |
2267 | if (!gfan_handle) { |
2268 | /* gfan without sfan means no fan control */ | |
2269 | /* all other models implement TP EC 0x2f control */ | |
2270 | ||
2271 | if (fans_handle) { | |
a8b7a662 | 2272 | /* X31, X40, X41 */ |
69ba91cb | 2273 | fan_control_access_mode = |
efa27145 | 2274 | TPACPI_FAN_WR_ACPI_FANS; |
69ba91cb | 2275 | fan_control_commands |= |
efa27145 HMH |
2276 | TPACPI_FAN_CMD_SPEED | |
2277 | TPACPI_FAN_CMD_LEVEL | | |
2278 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb | 2279 | } else { |
efa27145 | 2280 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; |
a12095c2 | 2281 | fan_control_commands |= |
efa27145 HMH |
2282 | TPACPI_FAN_CMD_LEVEL | |
2283 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
2284 | } |
2285 | } | |
2286 | } | |
2287 | ||
fe08bc4b HMH |
2288 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
2289 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
2290 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
2291 | fan_status_access_mode, fan_control_access_mode); | |
2292 | ||
5fba344c HMH |
2293 | return (fan_status_access_mode != TPACPI_FAN_NONE || |
2294 | fan_control_access_mode != TPACPI_FAN_WR_NONE)? | |
2295 | 0 : 1; | |
69ba91cb | 2296 | } |
78f81cc4 | 2297 | |
c52f0aa5 | 2298 | static int fan_get_status(u8 *status) |
78f81cc4 | 2299 | { |
c52f0aa5 | 2300 | u8 s; |
78f81cc4 | 2301 | |
a8b7a662 | 2302 | /* TODO: |
efa27145 | 2303 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ |
a8b7a662 | 2304 | |
3ef8a609 | 2305 | switch (fan_status_access_mode) { |
efa27145 | 2306 | case TPACPI_FAN_RD_ACPI_GFAN: |
78f81cc4 | 2307 | /* 570, 600e/x, 770e, 770x */ |
c52f0aa5 HMH |
2308 | |
2309 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) | |
1da177e4 | 2310 | return -EIO; |
78f81cc4 | 2311 | |
c52f0aa5 HMH |
2312 | if (likely(status)) |
2313 | *status = s & 0x07; | |
3ef8a609 HMH |
2314 | |
2315 | break; | |
2316 | ||
efa27145 | 2317 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 2318 | /* all except 570, 600e/x, 770e, 770x */ |
c52f0aa5 | 2319 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
3ef8a609 | 2320 | return -EIO; |
78f81cc4 | 2321 | |
c52f0aa5 HMH |
2322 | if (likely(status)) |
2323 | *status = s; | |
2324 | ||
2325 | break; | |
2326 | ||
2327 | default: | |
2328 | return -ENXIO; | |
78f81cc4 BD |
2329 | } |
2330 | ||
c52f0aa5 HMH |
2331 | return 0; |
2332 | } | |
2333 | ||
56b6aeb0 HMH |
2334 | static void fan_exit(void) |
2335 | { | |
fe08bc4b | 2336 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending watchdogs\n"); |
56b6aeb0 HMH |
2337 | cancel_delayed_work(&fan_watchdog_task); |
2338 | flush_scheduled_work(); | |
2339 | } | |
2340 | ||
c52f0aa5 HMH |
2341 | static int fan_get_speed(unsigned int *speed) |
2342 | { | |
2343 | u8 hi, lo; | |
2344 | ||
2345 | switch (fan_status_access_mode) { | |
efa27145 | 2346 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 2347 | /* all except 570, 600e/x, 770e, 770x */ |
3ef8a609 HMH |
2348 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
2349 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
2350 | return -EIO; | |
3ef8a609 | 2351 | |
c52f0aa5 HMH |
2352 | if (likely(speed)) |
2353 | *speed = (hi << 8) | lo; | |
2354 | ||
2355 | break; | |
2356 | ||
2357 | default: | |
2358 | return -ENXIO; | |
2359 | } | |
2360 | ||
2361 | return 0; | |
2362 | } | |
2363 | ||
56b6aeb0 | 2364 | static void fan_watchdog_fire(struct work_struct *ignored) |
16663a87 | 2365 | { |
56b6aeb0 HMH |
2366 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); |
2367 | if (fan_set_enable()) { | |
2368 | printk(IBM_ERR "fan watchdog: error while enabling fan\n"); | |
2369 | /* reschedule for later */ | |
2370 | fan_watchdog_reset(); | |
2371 | } | |
16663a87 HMH |
2372 | } |
2373 | ||
2374 | static void fan_watchdog_reset(void) | |
2375 | { | |
2376 | static int fan_watchdog_active = 0; | |
2377 | ||
2378 | if (fan_watchdog_active) | |
2379 | cancel_delayed_work(&fan_watchdog_task); | |
2380 | ||
2381 | if (fan_watchdog_maxinterval > 0) { | |
2382 | fan_watchdog_active = 1; | |
2383 | if (!schedule_delayed_work(&fan_watchdog_task, | |
2384 | msecs_to_jiffies(fan_watchdog_maxinterval | |
2385 | * 1000))) { | |
2386 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
2387 | "watchdog will not trigger\n"); | |
2388 | } | |
2389 | } else | |
2390 | fan_watchdog_active = 0; | |
2391 | } | |
2392 | ||
18ad7996 | 2393 | static int fan_set_level(int level) |
78f81cc4 | 2394 | { |
18ad7996 | 2395 | switch (fan_control_access_mode) { |
efa27145 | 2396 | case TPACPI_FAN_WR_ACPI_SFAN: |
18ad7996 | 2397 | if (level >= 0 && level <= 7) { |
78f81cc4 BD |
2398 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
2399 | return -EIO; | |
18ad7996 HMH |
2400 | } else |
2401 | return -EINVAL; | |
2402 | break; | |
2403 | ||
efa27145 HMH |
2404 | case TPACPI_FAN_WR_ACPI_FANS: |
2405 | case TPACPI_FAN_WR_TPEC: | |
2406 | if ((level != TP_EC_FAN_AUTO) && | |
2407 | (level != TP_EC_FAN_FULLSPEED) && | |
a12095c2 HMH |
2408 | ((level < 0) || (level > 7))) |
2409 | return -EINVAL; | |
2410 | ||
2411 | if (!acpi_ec_write(fan_status_offset, level)) | |
2412 | return -EIO; | |
778b4d74 HMH |
2413 | else |
2414 | fan_control_status_known = 1; | |
a12095c2 HMH |
2415 | break; |
2416 | ||
18ad7996 HMH |
2417 | default: |
2418 | return -ENXIO; | |
2419 | } | |
2420 | return 0; | |
2421 | } | |
2422 | ||
2423 | static int fan_set_enable(void) | |
2424 | { | |
1c6a334e HMH |
2425 | u8 s; |
2426 | int rc; | |
2427 | ||
18ad7996 | 2428 | switch (fan_control_access_mode) { |
efa27145 HMH |
2429 | case TPACPI_FAN_WR_ACPI_FANS: |
2430 | case TPACPI_FAN_WR_TPEC: | |
1c6a334e HMH |
2431 | if ((rc = fan_get_status(&s)) < 0) |
2432 | return rc; | |
2433 | ||
2434 | /* Don't go out of emergency fan mode */ | |
2435 | if (s != 7) | |
efa27145 | 2436 | s = TP_EC_FAN_AUTO; |
1c6a334e HMH |
2437 | |
2438 | if (!acpi_ec_write(fan_status_offset, s)) | |
2439 | return -EIO; | |
778b4d74 HMH |
2440 | else |
2441 | fan_control_status_known = 1; | |
1c6a334e HMH |
2442 | break; |
2443 | ||
efa27145 | 2444 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e HMH |
2445 | if ((rc = fan_get_status(&s)) < 0) |
2446 | return rc; | |
2447 | ||
2448 | s &= 0x07; | |
2449 | ||
2450 | /* Set fan to at least level 4 */ | |
2451 | if (s < 4) | |
2452 | s = 4; | |
2453 | ||
2454 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) | |
18ad7996 HMH |
2455 | return -EIO; |
2456 | break; | |
2457 | ||
2458 | default: | |
2459 | return -ENXIO; | |
2460 | } | |
2461 | return 0; | |
2462 | } | |
2463 | ||
2464 | static int fan_set_disable(void) | |
2465 | { | |
2466 | switch (fan_control_access_mode) { | |
efa27145 HMH |
2467 | case TPACPI_FAN_WR_ACPI_FANS: |
2468 | case TPACPI_FAN_WR_TPEC: | |
18ad7996 HMH |
2469 | if (!acpi_ec_write(fan_status_offset, 0x00)) |
2470 | return -EIO; | |
778b4d74 HMH |
2471 | else |
2472 | fan_control_status_known = 1; | |
18ad7996 HMH |
2473 | break; |
2474 | ||
efa27145 | 2475 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e HMH |
2476 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) |
2477 | return -EIO; | |
2478 | break; | |
2479 | ||
18ad7996 HMH |
2480 | default: |
2481 | return -ENXIO; | |
2482 | } | |
56b6aeb0 HMH |
2483 | return 0; |
2484 | } | |
2485 | ||
2486 | static int fan_set_speed(int speed) | |
2487 | { | |
2488 | switch (fan_control_access_mode) { | |
efa27145 | 2489 | case TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
2490 | if (speed >= 0 && speed <= 65535) { |
2491 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
2492 | speed, speed, speed)) | |
2493 | return -EIO; | |
2494 | } else | |
2495 | return -EINVAL; | |
2496 | break; | |
2497 | ||
2498 | default: | |
2499 | return -ENXIO; | |
2500 | } | |
2501 | return 0; | |
2502 | } | |
2503 | ||
2504 | static int fan_read(char *p) | |
2505 | { | |
2506 | int len = 0; | |
2507 | int rc; | |
2508 | u8 status; | |
2509 | unsigned int speed = 0; | |
2510 | ||
2511 | switch (fan_status_access_mode) { | |
efa27145 | 2512 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
2513 | /* 570, 600e/x, 770e, 770x */ |
2514 | if ((rc = fan_get_status(&status)) < 0) | |
2515 | return rc; | |
2516 | ||
2517 | len += sprintf(p + len, "status:\t\t%s\n" | |
2518 | "level:\t\t%d\n", | |
2519 | (status != 0) ? "enabled" : "disabled", status); | |
2520 | break; | |
2521 | ||
efa27145 | 2522 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 HMH |
2523 | /* all except 570, 600e/x, 770e, 770x */ |
2524 | if ((rc = fan_get_status(&status)) < 0) | |
2525 | return rc; | |
2526 | ||
2527 | if (unlikely(!fan_control_status_known)) { | |
2528 | if (status != fan_control_initial_status) | |
2529 | fan_control_status_known = 1; | |
2530 | else | |
2531 | /* Return most likely status. In fact, it | |
2532 | * might be the only possible status */ | |
efa27145 | 2533 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
2534 | } |
2535 | ||
2536 | len += sprintf(p + len, "status:\t\t%s\n", | |
2537 | (status != 0) ? "enabled" : "disabled"); | |
2538 | ||
56b6aeb0 HMH |
2539 | if ((rc = fan_get_speed(&speed)) < 0) |
2540 | return rc; | |
2541 | ||
2542 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
2543 | ||
efa27145 | 2544 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
2545 | /* Disengaged mode takes precedence */ |
2546 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 2547 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
2548 | len += sprintf(p + len, "level:\t\tauto\n"); |
2549 | else | |
2550 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
2551 | break; | |
2552 | ||
efa27145 | 2553 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
2554 | default: |
2555 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2556 | } | |
2557 | ||
efa27145 | 2558 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
2559 | len += sprintf(p + len, "commands:\tlevel <level>"); |
2560 | ||
2561 | switch (fan_control_access_mode) { | |
efa27145 | 2562 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
2563 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
2564 | break; | |
2565 | ||
2566 | default: | |
2567 | len += sprintf(p + len, " (<level> is 0-7, " | |
2568 | "auto, disengaged)\n"); | |
2569 | break; | |
2570 | } | |
2571 | } | |
18ad7996 | 2572 | |
efa27145 | 2573 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
2574 | len += sprintf(p + len, "commands:\tenable, disable\n" |
2575 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
2576 | "1-120 (seconds))\n"); | |
1da177e4 | 2577 | |
efa27145 | 2578 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
2579 | len += sprintf(p + len, "commands:\tspeed <speed>" |
2580 | " (<speed> is 0-65535)\n"); | |
2581 | ||
2582 | return len; | |
78f81cc4 BD |
2583 | } |
2584 | ||
18ad7996 HMH |
2585 | static int fan_write_cmd_level(const char *cmd, int *rc) |
2586 | { | |
2587 | int level; | |
2588 | ||
a12095c2 | 2589 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 2590 | level = TP_EC_FAN_AUTO; |
a12095c2 | 2591 | else if (strlencmp(cmd, "level disengaged") == 0) |
efa27145 | 2592 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 2593 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
2594 | return 0; |
2595 | ||
2596 | if ((*rc = fan_set_level(level)) == -ENXIO) | |
2597 | printk(IBM_ERR "level command accepted for unsupported " | |
2598 | "access mode %d", fan_control_access_mode); | |
2599 | ||
2600 | return 1; | |
2601 | } | |
2602 | ||
2603 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
2604 | { | |
2605 | if (strlencmp(cmd, "enable") != 0) | |
2606 | return 0; | |
2607 | ||
2608 | if ((*rc = fan_set_enable()) == -ENXIO) | |
2609 | printk(IBM_ERR "enable command accepted for unsupported " | |
2610 | "access mode %d", fan_control_access_mode); | |
2611 | ||
2612 | return 1; | |
2613 | } | |
2614 | ||
2615 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
2616 | { | |
2617 | if (strlencmp(cmd, "disable") != 0) | |
2618 | return 0; | |
2619 | ||
2620 | if ((*rc = fan_set_disable()) == -ENXIO) | |
2621 | printk(IBM_ERR "disable command accepted for unsupported " | |
2622 | "access mode %d", fan_control_access_mode); | |
2623 | ||
2624 | return 1; | |
2625 | } | |
2626 | ||
2627 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
2628 | { | |
2629 | int speed; | |
2630 | ||
a8b7a662 HMH |
2631 | /* TODO: |
2632 | * Support speed <low> <medium> <high> ? */ | |
2633 | ||
18ad7996 HMH |
2634 | if (sscanf(cmd, "speed %d", &speed) != 1) |
2635 | return 0; | |
2636 | ||
2637 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
2638 | printk(IBM_ERR "speed command accepted for unsupported " | |
2639 | "access mode %d", fan_control_access_mode); | |
2640 | ||
2641 | return 1; | |
2642 | } | |
2643 | ||
16663a87 HMH |
2644 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
2645 | { | |
2646 | int interval; | |
2647 | ||
2648 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
2649 | return 0; | |
2650 | ||
2651 | if (interval < 0 || interval > 120) | |
2652 | *rc = -EINVAL; | |
2653 | else | |
2654 | fan_watchdog_maxinterval = interval; | |
2655 | ||
2656 | return 1; | |
2657 | } | |
2658 | ||
18ad7996 HMH |
2659 | static int fan_write(char *buf) |
2660 | { | |
2661 | char *cmd; | |
2662 | int rc = 0; | |
2663 | ||
2664 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 2665 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 2666 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 2667 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 2668 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
2669 | fan_write_cmd_disable(cmd, &rc) || |
2670 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 2671 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
2672 | fan_write_cmd_speed(cmd, &rc)) |
2673 | ) | |
2674 | rc = -EINVAL; | |
16663a87 HMH |
2675 | else if (!rc) |
2676 | fan_watchdog_reset(); | |
18ad7996 HMH |
2677 | } |
2678 | ||
2679 | return rc; | |
2680 | } | |
2681 | ||
a5763f22 HMH |
2682 | static struct ibm_struct fan_driver_data = { |
2683 | .name = "fan", | |
2684 | .read = fan_read, | |
2685 | .write = fan_write, | |
2686 | .exit = fan_exit, | |
2687 | .experimental = 1, | |
2688 | }; | |
2689 | ||
56b6aeb0 HMH |
2690 | /**************************************************************************** |
2691 | **************************************************************************** | |
2692 | * | |
2693 | * Infrastructure | |
2694 | * | |
2695 | **************************************************************************** | |
2696 | ****************************************************************************/ | |
2697 | ||
2698 | /* /proc support */ | |
2699 | static struct proc_dir_entry *proc_dir = NULL; | |
16663a87 | 2700 | |
56b6aeb0 | 2701 | /* Subdriver registry */ |
a5763f22 HMH |
2702 | static LIST_HEAD(tpacpi_all_drivers); |
2703 | ||
1da177e4 | 2704 | |
56b6aeb0 HMH |
2705 | /* |
2706 | * Module and infrastructure proble, init and exit handling | |
2707 | */ | |
1da177e4 | 2708 | |
fe08bc4b | 2709 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 2710 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 2711 | { |
a5763f22 | 2712 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 2713 | |
a5763f22 | 2714 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
2715 | } |
2716 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
2717 | ||
a5763f22 | 2718 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
2719 | { |
2720 | int ret; | |
a5763f22 | 2721 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
2722 | struct proc_dir_entry *entry; |
2723 | ||
a5763f22 HMH |
2724 | BUG_ON(ibm == NULL); |
2725 | ||
2726 | INIT_LIST_HEAD(&ibm->all_drivers); | |
2727 | ||
1da177e4 LT |
2728 | if (ibm->experimental && !experimental) |
2729 | return 0; | |
2730 | ||
fe08bc4b HMH |
2731 | dbg_printk(TPACPI_DBG_INIT, |
2732 | "probing for %s\n", ibm->name); | |
2733 | ||
a5763f22 HMH |
2734 | if (iibm->init) { |
2735 | ret = iibm->init(iibm); | |
5fba344c HMH |
2736 | if (ret > 0) |
2737 | return 0; /* probe failed */ | |
2738 | if (ret) | |
1da177e4 | 2739 | return ret; |
a5763f22 | 2740 | |
1da177e4 LT |
2741 | ibm->init_called = 1; |
2742 | } | |
2743 | ||
5fba344c HMH |
2744 | if (ibm->hid) { |
2745 | ret = register_tpacpi_subdriver(ibm); | |
2746 | if (ret) | |
2747 | goto err_out; | |
2748 | } | |
2749 | ||
2750 | if (ibm->notify) { | |
2751 | ret = setup_notify(ibm); | |
2752 | if (ret == -ENODEV) { | |
2753 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
2754 | ibm->name); | |
2755 | ret = 0; | |
2756 | goto err_out; | |
2757 | } | |
2758 | if (ret < 0) | |
2759 | goto err_out; | |
2760 | } | |
2761 | ||
fe08bc4b HMH |
2762 | dbg_printk(TPACPI_DBG_INIT, |
2763 | "%s installed\n", ibm->name); | |
2764 | ||
78f81cc4 BD |
2765 | if (ibm->read) { |
2766 | entry = create_proc_entry(ibm->name, | |
2767 | S_IFREG | S_IRUGO | S_IWUSR, | |
2768 | proc_dir); | |
2769 | if (!entry) { | |
2770 | printk(IBM_ERR "unable to create proc entry %s\n", | |
2771 | ibm->name); | |
5fba344c HMH |
2772 | ret = -ENODEV; |
2773 | goto err_out; | |
78f81cc4 BD |
2774 | } |
2775 | entry->owner = THIS_MODULE; | |
2776 | entry->data = ibm; | |
1da177e4 | 2777 | entry->read_proc = &dispatch_read; |
78f81cc4 BD |
2778 | if (ibm->write) |
2779 | entry->write_proc = &dispatch_write; | |
2780 | ibm->proc_created = 1; | |
2781 | } | |
1da177e4 | 2782 | |
a5763f22 HMH |
2783 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
2784 | ||
1da177e4 | 2785 | return 0; |
5fba344c HMH |
2786 | |
2787 | err_out: | |
fe08bc4b HMH |
2788 | dbg_printk(TPACPI_DBG_INIT, |
2789 | "%s: at error exit path with result %d\n", | |
2790 | ibm->name, ret); | |
2791 | ||
5fba344c HMH |
2792 | ibm_exit(ibm); |
2793 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
2794 | } |
2795 | ||
2796 | static void ibm_exit(struct ibm_struct *ibm) | |
2797 | { | |
fe08bc4b | 2798 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); |
a5763f22 HMH |
2799 | |
2800 | list_del_init(&ibm->all_drivers); | |
2801 | ||
5fba344c | 2802 | if (ibm->notify_installed) { |
fe08bc4b HMH |
2803 | dbg_printk(TPACPI_DBG_EXIT, |
2804 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
1da177e4 LT |
2805 | acpi_remove_notify_handler(*ibm->handle, ibm->type, |
2806 | dispatch_notify); | |
5fba344c HMH |
2807 | ibm->notify_installed = 0; |
2808 | } | |
1da177e4 | 2809 | |
5fba344c | 2810 | if (ibm->proc_created) { |
fe08bc4b HMH |
2811 | dbg_printk(TPACPI_DBG_EXIT, |
2812 | "%s: remove_proc_entry\n", ibm->name); | |
1da177e4 | 2813 | remove_proc_entry(ibm->name, proc_dir); |
5fba344c HMH |
2814 | ibm->proc_created = 0; |
2815 | } | |
1da177e4 LT |
2816 | |
2817 | if (ibm->driver_registered) { | |
fe08bc4b HMH |
2818 | dbg_printk(TPACPI_DBG_EXIT, |
2819 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
1da177e4 LT |
2820 | acpi_bus_unregister_driver(ibm->driver); |
2821 | kfree(ibm->driver); | |
5fba344c HMH |
2822 | ibm->driver = NULL; |
2823 | ibm->driver_registered = 0; | |
2824 | } | |
2825 | ||
2826 | if (ibm->init_called && ibm->exit) { | |
2827 | ibm->exit(); | |
2828 | ibm->init_called = 0; | |
1da177e4 | 2829 | } |
a5763f22 HMH |
2830 | |
2831 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
1da177e4 LT |
2832 | } |
2833 | ||
56b6aeb0 HMH |
2834 | /* Probing */ |
2835 | ||
2836 | static char *ibm_thinkpad_ec_found = NULL; | |
2837 | ||
2838 | static char* __init check_dmi_for_ec(void) | |
1da177e4 | 2839 | { |
56b6aeb0 HMH |
2840 | struct dmi_device *dev = NULL; |
2841 | char ec_fw_string[18]; | |
1da177e4 | 2842 | |
56b6aeb0 HMH |
2843 | /* |
2844 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
2845 | * X32 or newer, all Z series; Some models must have an | |
2846 | * up-to-date BIOS or they will not be detected. | |
2847 | * | |
2848 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
2849 | */ | |
2850 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
2851 | if (sscanf(dev->name, | |
2852 | "IBM ThinkPad Embedded Controller -[%17c", | |
2853 | ec_fw_string) == 1) { | |
2854 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
2855 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
2856 | return kstrdup(ec_fw_string, GFP_KERNEL); | |
78f81cc4 | 2857 | } |
1da177e4 | 2858 | } |
56b6aeb0 | 2859 | return NULL; |
1da177e4 LT |
2860 | } |
2861 | ||
5fba344c HMH |
2862 | static int __init probe_for_thinkpad(void) |
2863 | { | |
2864 | int is_thinkpad; | |
2865 | ||
2866 | if (acpi_disabled) | |
2867 | return -ENODEV; | |
2868 | ||
2869 | /* | |
2870 | * Non-ancient models have better DMI tagging, but very old models | |
2871 | * don't. | |
2872 | */ | |
2873 | is_thinkpad = dmi_name_in_vendors("ThinkPad"); | |
2874 | ||
2875 | /* ec is required because many other handles are relative to it */ | |
2876 | IBM_HANDLE_INIT(ec); | |
2877 | if (!ec_handle) { | |
2878 | if (is_thinkpad) | |
2879 | printk(IBM_ERR | |
2880 | "Not yet supported ThinkPad detected!\n"); | |
2881 | return -ENODEV; | |
2882 | } | |
2883 | ||
0dcef77c HMH |
2884 | /* |
2885 | * Risks a regression on very old machines, but reduces potential | |
2886 | * false positives a damn great deal | |
2887 | */ | |
2888 | if (!is_thinkpad) | |
2889 | is_thinkpad = dmi_name_in_vendors("IBM"); | |
2890 | ||
2891 | if (!is_thinkpad && !force_load) | |
2892 | return -ENODEV; | |
2893 | ||
5fba344c HMH |
2894 | return 0; |
2895 | } | |
2896 | ||
2897 | ||
56b6aeb0 | 2898 | /* Module init, exit, parameters */ |
1da177e4 | 2899 | |
a5763f22 HMH |
2900 | static struct ibm_init_struct ibms_init[] __initdata = { |
2901 | { | |
2902 | .init = thinkpad_acpi_driver_init, | |
2903 | .data = &thinkpad_acpi_driver_data, | |
2904 | }, | |
2905 | { | |
2906 | .init = hotkey_init, | |
2907 | .data = &hotkey_driver_data, | |
2908 | }, | |
2909 | { | |
2910 | .init = bluetooth_init, | |
2911 | .data = &bluetooth_driver_data, | |
2912 | }, | |
2913 | { | |
2914 | .init = wan_init, | |
2915 | .data = &wan_driver_data, | |
2916 | }, | |
2917 | { | |
2918 | .init = video_init, | |
2919 | .data = &video_driver_data, | |
2920 | }, | |
2921 | { | |
2922 | .init = light_init, | |
2923 | .data = &light_driver_data, | |
2924 | }, | |
2925 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
2926 | { | |
2927 | .init = dock_init, | |
2928 | .data = &dock_driver_data[0], | |
2929 | }, | |
2930 | { | |
2931 | .data = &dock_driver_data[1], | |
2932 | }, | |
2933 | #endif | |
2934 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
2935 | { | |
2936 | .init = bay_init, | |
2937 | .data = &bay_driver_data, | |
2938 | }, | |
2939 | #endif | |
2940 | { | |
2941 | .init = cmos_init, | |
2942 | .data = &cmos_driver_data, | |
2943 | }, | |
2944 | { | |
2945 | .init = led_init, | |
2946 | .data = &led_driver_data, | |
2947 | }, | |
2948 | { | |
2949 | .init = beep_init, | |
2950 | .data = &beep_driver_data, | |
2951 | }, | |
2952 | { | |
2953 | .init = thermal_init, | |
2954 | .data = &thermal_driver_data, | |
2955 | }, | |
2956 | { | |
2957 | .data = &ecdump_driver_data, | |
2958 | }, | |
2959 | { | |
2960 | .init = brightness_init, | |
2961 | .data = &brightness_driver_data, | |
2962 | }, | |
2963 | { | |
2964 | .data = &volume_driver_data, | |
2965 | }, | |
2966 | { | |
2967 | .init = fan_init, | |
2968 | .data = &fan_driver_data, | |
2969 | }, | |
2970 | }; | |
2971 | ||
3945ac36 | 2972 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
2973 | { |
2974 | unsigned int i; | |
a5763f22 | 2975 | struct ibm_struct *ibm; |
1da177e4 | 2976 | |
a5763f22 HMH |
2977 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
2978 | ibm = ibms_init[i].data; | |
2979 | BUG_ON(ibm == NULL); | |
2980 | ||
2981 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
2982 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 2983 | return -ENOSPC; |
a5763f22 HMH |
2984 | strcpy(ibms_init[i].param, val); |
2985 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
2986 | return 0; |
2987 | } | |
a5763f22 | 2988 | } |
1da177e4 | 2989 | |
1da177e4 LT |
2990 | return -EINVAL; |
2991 | } | |
2992 | ||
56b6aeb0 HMH |
2993 | static int experimental; |
2994 | module_param(experimental, int, 0); | |
2995 | ||
132ce091 HMH |
2996 | static u32 dbg_level; |
2997 | module_param_named(debug, dbg_level, uint, 0); | |
2998 | ||
0dcef77c HMH |
2999 | static int force_load; |
3000 | module_param(force_load, int, 0); | |
3001 | ||
1da177e4 LT |
3002 | #define IBM_PARAM(feature) \ |
3003 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
3004 | ||
78f81cc4 BD |
3005 | IBM_PARAM(hotkey); |
3006 | IBM_PARAM(bluetooth); | |
3007 | IBM_PARAM(video); | |
3008 | IBM_PARAM(light); | |
85998248 | 3009 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
78f81cc4 | 3010 | IBM_PARAM(dock); |
63e5f248 | 3011 | #endif |
85998248 | 3012 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 | 3013 | IBM_PARAM(bay); |
85998248 | 3014 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
78f81cc4 BD |
3015 | IBM_PARAM(cmos); |
3016 | IBM_PARAM(led); | |
3017 | IBM_PARAM(beep); | |
3018 | IBM_PARAM(ecdump); | |
3019 | IBM_PARAM(brightness); | |
3020 | IBM_PARAM(volume); | |
3021 | IBM_PARAM(fan); | |
3022 | ||
1def7115 | 3023 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
3024 | { |
3025 | int ret, i; | |
3026 | ||
5fba344c HMH |
3027 | ret = probe_for_thinkpad(); |
3028 | if (ret) | |
3029 | return ret; | |
1da177e4 | 3030 | |
60eb0b35 | 3031 | ibm_thinkpad_ec_found = check_dmi_for_ec(); |
78f81cc4 BD |
3032 | IBM_HANDLE_INIT(ecrd); |
3033 | IBM_HANDLE_INIT(ecwr); | |
1da177e4 LT |
3034 | |
3035 | proc_dir = proc_mkdir(IBM_DIR, acpi_root_dir); | |
3036 | if (!proc_dir) { | |
3037 | printk(IBM_ERR "unable to create proc dir %s", IBM_DIR); | |
1def7115 | 3038 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
3039 | return -ENODEV; |
3040 | } | |
3041 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 3042 | |
a5763f22 HMH |
3043 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
3044 | ret = ibm_init(&ibms_init[i]); | |
3045 | if (ret >= 0 && *ibms_init[i].param) | |
3046 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 3047 | if (ret < 0) { |
1def7115 | 3048 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
3049 | return ret; |
3050 | } | |
3051 | } | |
3052 | ||
3053 | return 0; | |
3054 | } | |
3055 | ||
1def7115 | 3056 | static void thinkpad_acpi_module_exit(void) |
56b6aeb0 | 3057 | { |
a5763f22 HMH |
3058 | struct ibm_struct *ibm, *itmp; |
3059 | ||
3060 | list_for_each_entry_safe_reverse(ibm, itmp, | |
3061 | &tpacpi_all_drivers, | |
3062 | all_drivers) { | |
3063 | ibm_exit(ibm); | |
3064 | } | |
56b6aeb0 | 3065 | |
a5763f22 | 3066 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); |
56b6aeb0 HMH |
3067 | |
3068 | if (proc_dir) | |
3069 | remove_proc_entry(IBM_DIR, acpi_root_dir); | |
3070 | ||
3071 | if (ibm_thinkpad_ec_found) | |
3072 | kfree(ibm_thinkpad_ec_found); | |
3073 | } | |
3074 | ||
1def7115 HMH |
3075 | module_init(thinkpad_acpi_module_init); |
3076 | module_exit(thinkpad_acpi_module_exit); |