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 | } | |
92641177 | 342 | ibm->flags.notify_installed = 1; |
56b6aeb0 HMH |
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) | |
92641177 | 375 | ibm->flags.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_orig_status; |
505 | static int hotkey_orig_mask; | |
506 | ||
a5763f22 | 507 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 508 | { |
fe08bc4b HMH |
509 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
510 | ||
5fba344c HMH |
511 | IBM_HANDLE_INIT(hkey); |
512 | ||
56b6aeb0 | 513 | /* hotkey not supported on 570 */ |
d8fd94d9 | 514 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 515 | |
fe08bc4b | 516 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 517 | str_supported(tp_features.hotkey)); |
fe08bc4b | 518 | |
d8fd94d9 | 519 | if (tp_features.hotkey) { |
56b6aeb0 HMH |
520 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
521 | A30, R30, R31, T20-22, X20-21, X22-24 */ | |
d8fd94d9 HMH |
522 | tp_features.hotkey_mask = |
523 | acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); | |
56b6aeb0 | 524 | |
fe08bc4b | 525 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 526 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 527 | |
56b6aeb0 HMH |
528 | if (!hotkey_get(&hotkey_orig_status, &hotkey_orig_mask)) |
529 | return -ENODEV; | |
530 | } | |
531 | ||
d8fd94d9 | 532 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
533 | } |
534 | ||
535 | static void hotkey_exit(void) | |
536 | { | |
d8fd94d9 | 537 | if (tp_features.hotkey) { |
fe08bc4b | 538 | dbg_printk(TPACPI_DBG_EXIT, "restoring original hotkey mask\n"); |
56b6aeb0 | 539 | hotkey_set(hotkey_orig_status, hotkey_orig_mask); |
5fba344c | 540 | } |
56b6aeb0 HMH |
541 | } |
542 | ||
543 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
544 | { | |
545 | int hkey; | |
546 | ||
547 | if (acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) | |
548 | acpi_bus_generate_event(ibm->device, event, hkey); | |
549 | else { | |
550 | printk(IBM_ERR "unknown hotkey event %d\n", event); | |
551 | acpi_bus_generate_event(ibm->device, event, 0); | |
552 | } | |
553 | } | |
554 | ||
78f81cc4 | 555 | static int hotkey_get(int *status, int *mask) |
1da177e4 LT |
556 | { |
557 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
78f81cc4 BD |
558 | return 0; |
559 | ||
d8fd94d9 | 560 | if (tp_features.hotkey_mask) |
78f81cc4 BD |
561 | if (!acpi_evalf(hkey_handle, mask, "DHKN", "d")) |
562 | return 0; | |
563 | ||
564 | return 1; | |
1da177e4 LT |
565 | } |
566 | ||
78f81cc4 | 567 | static int hotkey_set(int status, int mask) |
1da177e4 LT |
568 | { |
569 | int i; | |
570 | ||
571 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1da177e4 LT |
572 | return 0; |
573 | ||
d8fd94d9 | 574 | if (tp_features.hotkey_mask) |
78f81cc4 BD |
575 | for (i = 0; i < 32; i++) { |
576 | int bit = ((1 << i) & mask) != 0; | |
577 | if (!acpi_evalf(hkey_handle, | |
578 | NULL, "MHKM", "vdd", i + 1, bit)) | |
579 | return 0; | |
580 | } | |
1da177e4 | 581 | |
78f81cc4 | 582 | return 1; |
1da177e4 LT |
583 | } |
584 | ||
78f81cc4 | 585 | static int hotkey_read(char *p) |
1da177e4 LT |
586 | { |
587 | int status, mask; | |
588 | int len = 0; | |
589 | ||
d8fd94d9 | 590 | if (!tp_features.hotkey) { |
78f81cc4 BD |
591 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
592 | return len; | |
593 | } | |
594 | ||
595 | if (!hotkey_get(&status, &mask)) | |
1da177e4 LT |
596 | return -EIO; |
597 | ||
598 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 599 | if (tp_features.hotkey_mask) { |
1da177e4 LT |
600 | len += sprintf(p + len, "mask:\t\t0x%04x\n", mask); |
601 | len += sprintf(p + len, | |
602 | "commands:\tenable, disable, reset, <mask>\n"); | |
603 | } else { | |
604 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
605 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
606 | } | |
607 | ||
608 | return len; | |
609 | } | |
610 | ||
78f81cc4 | 611 | static int hotkey_write(char *buf) |
1da177e4 LT |
612 | { |
613 | int status, mask; | |
614 | char *cmd; | |
615 | int do_cmd = 0; | |
616 | ||
d8fd94d9 | 617 | if (!tp_features.hotkey) |
1da177e4 LT |
618 | return -ENODEV; |
619 | ||
78f81cc4 BD |
620 | if (!hotkey_get(&status, &mask)) |
621 | return -EIO; | |
622 | ||
1da177e4 LT |
623 | while ((cmd = next_cmd(&buf))) { |
624 | if (strlencmp(cmd, "enable") == 0) { | |
625 | status = 1; | |
626 | } else if (strlencmp(cmd, "disable") == 0) { | |
627 | status = 0; | |
628 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
629 | status = hotkey_orig_status; |
630 | mask = hotkey_orig_mask; | |
1da177e4 LT |
631 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
632 | /* mask set */ | |
633 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
634 | /* mask set */ | |
635 | } else | |
636 | return -EINVAL; | |
637 | do_cmd = 1; | |
638 | } | |
639 | ||
78f81cc4 | 640 | if (do_cmd && !hotkey_set(status, mask)) |
1da177e4 LT |
641 | return -EIO; |
642 | ||
643 | return 0; | |
78f81cc4 | 644 | } |
1da177e4 | 645 | |
a5763f22 HMH |
646 | static struct ibm_struct hotkey_driver_data = { |
647 | .name = "hotkey", | |
648 | .hid = IBM_HKEY_HID, | |
649 | .read = hotkey_read, | |
650 | .write = hotkey_write, | |
651 | .exit = hotkey_exit, | |
652 | .notify = hotkey_notify, | |
653 | .handle = &hkey_handle, | |
654 | .type = ACPI_DEVICE_NOTIFY, | |
655 | }; | |
656 | ||
56b6aeb0 HMH |
657 | /************************************************************************* |
658 | * Bluetooth subdriver | |
659 | */ | |
1da177e4 | 660 | |
a5763f22 | 661 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 662 | { |
fe08bc4b HMH |
663 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
664 | ||
5fba344c HMH |
665 | IBM_HANDLE_INIT(hkey); |
666 | ||
78f81cc4 BD |
667 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
668 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 669 | tp_features.bluetooth = hkey_handle && |
78f81cc4 | 670 | acpi_evalf(hkey_handle, NULL, "GBDC", "qv"); |
1da177e4 | 671 | |
fe08bc4b | 672 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s\n", |
d8fd94d9 | 673 | str_supported(tp_features.bluetooth)); |
fe08bc4b | 674 | |
d8fd94d9 | 675 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
676 | } |
677 | ||
78f81cc4 | 678 | static int bluetooth_status(void) |
1da177e4 LT |
679 | { |
680 | int status; | |
681 | ||
d8fd94d9 | 682 | if (!tp_features.bluetooth || |
78f81cc4 | 683 | !acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
1da177e4 LT |
684 | status = 0; |
685 | ||
686 | return status; | |
687 | } | |
688 | ||
78f81cc4 | 689 | static int bluetooth_read(char *p) |
1da177e4 LT |
690 | { |
691 | int len = 0; | |
78f81cc4 | 692 | int status = bluetooth_status(); |
1da177e4 | 693 | |
d8fd94d9 | 694 | if (!tp_features.bluetooth) |
1da177e4 LT |
695 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
696 | else if (!(status & 1)) | |
697 | len += sprintf(p + len, "status:\t\tnot installed\n"); | |
698 | else { | |
699 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 1)); | |
700 | len += sprintf(p + len, "commands:\tenable, disable\n"); | |
701 | } | |
702 | ||
703 | return len; | |
704 | } | |
705 | ||
78f81cc4 | 706 | static int bluetooth_write(char *buf) |
1da177e4 | 707 | { |
78f81cc4 | 708 | int status = bluetooth_status(); |
1da177e4 LT |
709 | char *cmd; |
710 | int do_cmd = 0; | |
711 | ||
d8fd94d9 | 712 | if (!tp_features.bluetooth) |
78f81cc4 | 713 | return -ENODEV; |
1da177e4 LT |
714 | |
715 | while ((cmd = next_cmd(&buf))) { | |
716 | if (strlencmp(cmd, "enable") == 0) { | |
717 | status |= 2; | |
718 | } else if (strlencmp(cmd, "disable") == 0) { | |
719 | status &= ~2; | |
720 | } else | |
721 | return -EINVAL; | |
722 | do_cmd = 1; | |
723 | } | |
724 | ||
725 | if (do_cmd && !acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
78f81cc4 | 726 | return -EIO; |
1da177e4 LT |
727 | |
728 | return 0; | |
729 | } | |
730 | ||
a5763f22 HMH |
731 | static struct ibm_struct bluetooth_driver_data = { |
732 | .name = "bluetooth", | |
733 | .read = bluetooth_read, | |
734 | .write = bluetooth_write, | |
735 | }; | |
736 | ||
56b6aeb0 HMH |
737 | /************************************************************************* |
738 | * Wan subdriver | |
739 | */ | |
740 | ||
a5763f22 | 741 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 742 | { |
fe08bc4b HMH |
743 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
744 | ||
5fba344c HMH |
745 | IBM_HANDLE_INIT(hkey); |
746 | ||
d8fd94d9 HMH |
747 | tp_features.wan = hkey_handle && |
748 | acpi_evalf(hkey_handle, NULL, "GWAN", "qv"); | |
42adb53c | 749 | |
fe08bc4b | 750 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s\n", |
d8fd94d9 | 751 | str_supported(tp_features.wan)); |
fe08bc4b | 752 | |
d8fd94d9 | 753 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
754 | } |
755 | ||
756 | static int wan_status(void) | |
757 | { | |
758 | int status; | |
759 | ||
d8fd94d9 HMH |
760 | if (!tp_features.wan || |
761 | !acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
42adb53c JF |
762 | status = 0; |
763 | ||
764 | return status; | |
765 | } | |
766 | ||
767 | static int wan_read(char *p) | |
768 | { | |
769 | int len = 0; | |
770 | int status = wan_status(); | |
771 | ||
d8fd94d9 | 772 | if (!tp_features.wan) |
42adb53c JF |
773 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
774 | else if (!(status & 1)) | |
775 | len += sprintf(p + len, "status:\t\tnot installed\n"); | |
776 | else { | |
777 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 1)); | |
778 | len += sprintf(p + len, "commands:\tenable, disable\n"); | |
779 | } | |
780 | ||
781 | return len; | |
782 | } | |
783 | ||
784 | static int wan_write(char *buf) | |
785 | { | |
786 | int status = wan_status(); | |
787 | char *cmd; | |
788 | int do_cmd = 0; | |
789 | ||
d8fd94d9 | 790 | if (!tp_features.wan) |
42adb53c JF |
791 | return -ENODEV; |
792 | ||
793 | while ((cmd = next_cmd(&buf))) { | |
794 | if (strlencmp(cmd, "enable") == 0) { | |
795 | status |= 2; | |
796 | } else if (strlencmp(cmd, "disable") == 0) { | |
797 | status &= ~2; | |
798 | } else | |
799 | return -EINVAL; | |
800 | do_cmd = 1; | |
801 | } | |
802 | ||
803 | if (do_cmd && !acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
804 | return -EIO; | |
805 | ||
806 | return 0; | |
807 | } | |
808 | ||
a5763f22 HMH |
809 | static struct ibm_struct wan_driver_data = { |
810 | .name = "wan", | |
811 | .read = wan_read, | |
812 | .write = wan_write, | |
92641177 | 813 | .flags.experimental = 1, |
a5763f22 HMH |
814 | }; |
815 | ||
56b6aeb0 HMH |
816 | /************************************************************************* |
817 | * Video subdriver | |
818 | */ | |
819 | ||
9a8e1738 HMH |
820 | static enum video_access_mode video_supported; |
821 | static int video_orig_autosw; | |
78f81cc4 | 822 | |
56b6aeb0 HMH |
823 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
824 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
825 | "\\_SB.PCI0.VID0", /* 770e */ | |
826 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
827 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
828 | ); /* R30, R31 */ | |
829 | ||
830 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
831 | ||
a5763f22 | 832 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 833 | { |
78f81cc4 BD |
834 | int ivga; |
835 | ||
fe08bc4b HMH |
836 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
837 | ||
5fba344c HMH |
838 | IBM_HANDLE_INIT(vid); |
839 | IBM_HANDLE_INIT(vid2); | |
840 | ||
78f81cc4 BD |
841 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
842 | /* G41, assume IVGA doesn't change */ | |
843 | vid_handle = vid2_handle; | |
844 | ||
845 | if (!vid_handle) | |
846 | /* video switching not supported on R30, R31 */ | |
efa27145 | 847 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
848 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
849 | /* 570 */ | |
efa27145 | 850 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
851 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
852 | /* 600e/x, 770e, 770x */ | |
efa27145 | 853 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
854 | else |
855 | /* all others */ | |
efa27145 | 856 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 857 | |
fe08bc4b HMH |
858 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
859 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
860 | video_supported); | |
861 | ||
5fba344c | 862 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
863 | } |
864 | ||
56b6aeb0 HMH |
865 | static void video_exit(void) |
866 | { | |
fe08bc4b | 867 | dbg_printk(TPACPI_DBG_EXIT, "restoring original video autoswitch mode\n"); |
56b6aeb0 HMH |
868 | acpi_evalf(vid_handle, NULL, "_DOS", "vd", video_orig_autosw); |
869 | } | |
870 | ||
78f81cc4 | 871 | static int video_status(void) |
1da177e4 LT |
872 | { |
873 | int status = 0; | |
874 | int i; | |
875 | ||
efa27145 | 876 | if (video_supported == TPACPI_VIDEO_570) { |
78f81cc4 BD |
877 | if (acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", 0x87)) |
878 | status = i & 3; | |
efa27145 | 879 | } else if (video_supported == TPACPI_VIDEO_770) { |
78f81cc4 BD |
880 | if (acpi_evalf(NULL, &i, "\\VCDL", "d")) |
881 | status |= 0x01 * i; | |
882 | if (acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
883 | status |= 0x02 * i; | |
efa27145 | 884 | } else if (video_supported == TPACPI_VIDEO_NEW) { |
78f81cc4 BD |
885 | acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1); |
886 | if (acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
887 | status |= 0x02 * i; | |
888 | ||
889 | acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0); | |
890 | if (acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
891 | status |= 0x01 * i; | |
892 | if (acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
893 | status |= 0x08 * i; | |
894 | } | |
895 | ||
896 | return status; | |
897 | } | |
1da177e4 | 898 | |
78f81cc4 BD |
899 | static int video_autosw(void) |
900 | { | |
901 | int autosw = 0; | |
1da177e4 | 902 | |
efa27145 | 903 | if (video_supported == TPACPI_VIDEO_570) |
78f81cc4 | 904 | acpi_evalf(vid_handle, &autosw, "SWIT", "d"); |
efa27145 HMH |
905 | else if (video_supported == TPACPI_VIDEO_770 || |
906 | video_supported == TPACPI_VIDEO_NEW) | |
78f81cc4 | 907 | acpi_evalf(vid_handle, &autosw, "^VDEE", "d"); |
1da177e4 | 908 | |
78f81cc4 | 909 | return autosw & 1; |
1da177e4 LT |
910 | } |
911 | ||
78f81cc4 BD |
912 | static int video_switch(void) |
913 | { | |
914 | int autosw = video_autosw(); | |
915 | int ret; | |
916 | ||
917 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) | |
918 | return -EIO; | |
efa27145 | 919 | ret = video_supported == TPACPI_VIDEO_570 ? |
78f81cc4 BD |
920 | acpi_evalf(ec_handle, NULL, "_Q16", "v") : |
921 | acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
922 | acpi_evalf(vid_handle, NULL, "_DOS", "vd", autosw); | |
923 | ||
924 | return ret; | |
925 | } | |
926 | ||
927 | static int video_expand(void) | |
928 | { | |
efa27145 | 929 | if (video_supported == TPACPI_VIDEO_570) |
78f81cc4 | 930 | return acpi_evalf(ec_handle, NULL, "_Q17", "v"); |
efa27145 | 931 | else if (video_supported == TPACPI_VIDEO_770) |
78f81cc4 BD |
932 | return acpi_evalf(vid_handle, NULL, "VEXP", "v"); |
933 | else | |
934 | return acpi_evalf(NULL, NULL, "\\VEXP", "v"); | |
935 | } | |
936 | ||
937 | static int video_switch2(int status) | |
938 | { | |
939 | int ret; | |
940 | ||
efa27145 | 941 | if (video_supported == TPACPI_VIDEO_570) { |
78f81cc4 BD |
942 | ret = acpi_evalf(NULL, NULL, |
943 | "\\_SB.PHS2", "vdd", 0x8b, status | 0x80); | |
efa27145 | 944 | } else if (video_supported == TPACPI_VIDEO_770) { |
78f81cc4 BD |
945 | int autosw = video_autosw(); |
946 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) | |
947 | return -EIO; | |
948 | ||
949 | ret = acpi_evalf(vid_handle, NULL, | |
950 | "ASWT", "vdd", status * 0x100, 0); | |
951 | ||
952 | acpi_evalf(vid_handle, NULL, "_DOS", "vd", autosw); | |
953 | } else { | |
954 | ret = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
955 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
956 | } | |
957 | ||
958 | return ret; | |
959 | } | |
960 | ||
56b6aeb0 HMH |
961 | static int video_read(char *p) |
962 | { | |
963 | int status = video_status(); | |
964 | int autosw = video_autosw(); | |
965 | int len = 0; | |
966 | ||
967 | if (!video_supported) { | |
968 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
969 | return len; | |
970 | } | |
971 | ||
972 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
973 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
974 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 975 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
976 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
977 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
978 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
979 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 980 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
981 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
982 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
983 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
984 | ||
985 | return len; | |
986 | } | |
987 | ||
78f81cc4 | 988 | static int video_write(char *buf) |
1da177e4 LT |
989 | { |
990 | char *cmd; | |
991 | int enable, disable, status; | |
992 | ||
78f81cc4 BD |
993 | if (!video_supported) |
994 | return -ENODEV; | |
995 | ||
1da177e4 LT |
996 | enable = disable = 0; |
997 | ||
998 | while ((cmd = next_cmd(&buf))) { | |
999 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
1000 | enable |= 0x01; | |
1001 | } else if (strlencmp(cmd, "lcd_disable") == 0) { | |
1002 | disable |= 0x01; | |
1003 | } else if (strlencmp(cmd, "crt_enable") == 0) { | |
1004 | enable |= 0x02; | |
1005 | } else if (strlencmp(cmd, "crt_disable") == 0) { | |
1006 | disable |= 0x02; | |
efa27145 | 1007 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1008 | strlencmp(cmd, "dvi_enable") == 0) { |
1da177e4 | 1009 | enable |= 0x08; |
efa27145 | 1010 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1011 | strlencmp(cmd, "dvi_disable") == 0) { |
1da177e4 LT |
1012 | disable |= 0x08; |
1013 | } else if (strlencmp(cmd, "auto_enable") == 0) { | |
1014 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) | |
1015 | return -EIO; | |
1016 | } else if (strlencmp(cmd, "auto_disable") == 0) { | |
1017 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 0)) | |
1018 | return -EIO; | |
1019 | } else if (strlencmp(cmd, "video_switch") == 0) { | |
78f81cc4 | 1020 | if (!video_switch()) |
1da177e4 LT |
1021 | return -EIO; |
1022 | } else if (strlencmp(cmd, "expand_toggle") == 0) { | |
78f81cc4 | 1023 | if (!video_expand()) |
1da177e4 LT |
1024 | return -EIO; |
1025 | } else | |
1026 | return -EINVAL; | |
1027 | } | |
1028 | ||
1029 | if (enable || disable) { | |
78f81cc4 BD |
1030 | status = (video_status() & 0x0f & ~disable) | enable; |
1031 | if (!video_switch2(status)) | |
1da177e4 LT |
1032 | return -EIO; |
1033 | } | |
1034 | ||
1035 | return 0; | |
1036 | } | |
1037 | ||
a5763f22 HMH |
1038 | static struct ibm_struct video_driver_data = { |
1039 | .name = "video", | |
1040 | .read = video_read, | |
1041 | .write = video_write, | |
1042 | .exit = video_exit, | |
1043 | }; | |
1044 | ||
56b6aeb0 HMH |
1045 | /************************************************************************* |
1046 | * Light (thinklight) subdriver | |
1047 | */ | |
1da177e4 | 1048 | |
56b6aeb0 HMH |
1049 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
1050 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
1051 | ||
a5763f22 | 1052 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 1053 | { |
fe08bc4b HMH |
1054 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
1055 | ||
5fba344c HMH |
1056 | IBM_HANDLE_INIT(ledb); |
1057 | IBM_HANDLE_INIT(lght); | |
1058 | IBM_HANDLE_INIT(cmos); | |
1059 | ||
78f81cc4 | 1060 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 1061 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 1062 | |
d8fd94d9 | 1063 | if (tp_features.light) |
78f81cc4 BD |
1064 | /* light status not supported on |
1065 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
1066 | tp_features.light_status = |
1067 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 1068 | |
fe08bc4b | 1069 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 1070 | str_supported(tp_features.light)); |
fe08bc4b | 1071 | |
d8fd94d9 | 1072 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
1073 | } |
1074 | ||
78f81cc4 | 1075 | static int light_read(char *p) |
1da177e4 LT |
1076 | { |
1077 | int len = 0; | |
1078 | int status = 0; | |
1079 | ||
d8fd94d9 | 1080 | if (!tp_features.light) { |
78f81cc4 | 1081 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 1082 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
1083 | len += sprintf(p + len, "status:\t\tunknown\n"); |
1084 | len += sprintf(p + len, "commands:\ton, off\n"); | |
1085 | } else { | |
1da177e4 LT |
1086 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
1087 | return -EIO; | |
1088 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
1089 | len += sprintf(p + len, "commands:\ton, off\n"); |
1090 | } | |
1da177e4 LT |
1091 | |
1092 | return len; | |
1093 | } | |
1094 | ||
78f81cc4 | 1095 | static int light_write(char *buf) |
1da177e4 LT |
1096 | { |
1097 | int cmos_cmd, lght_cmd; | |
1098 | char *cmd; | |
1099 | int success; | |
78f81cc4 | 1100 | |
d8fd94d9 | 1101 | if (!tp_features.light) |
78f81cc4 BD |
1102 | return -ENODEV; |
1103 | ||
1da177e4 LT |
1104 | while ((cmd = next_cmd(&buf))) { |
1105 | if (strlencmp(cmd, "on") == 0) { | |
1106 | cmos_cmd = 0x0c; | |
1107 | lght_cmd = 1; | |
1108 | } else if (strlencmp(cmd, "off") == 0) { | |
1109 | cmos_cmd = 0x0d; | |
1110 | lght_cmd = 0; | |
1111 | } else | |
1112 | return -EINVAL; | |
78f81cc4 | 1113 | |
1da177e4 | 1114 | success = cmos_handle ? |
78f81cc4 BD |
1115 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
1116 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
1117 | if (!success) |
1118 | return -EIO; | |
1119 | } | |
1120 | ||
1121 | return 0; | |
1122 | } | |
1123 | ||
a5763f22 HMH |
1124 | static struct ibm_struct light_driver_data = { |
1125 | .name = "light", | |
1126 | .read = light_read, | |
1127 | .write = light_write, | |
1128 | }; | |
1129 | ||
56b6aeb0 HMH |
1130 | /************************************************************************* |
1131 | * Dock subdriver | |
1132 | */ | |
1da177e4 | 1133 | |
85998248 | 1134 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 HMH |
1135 | |
1136 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ | |
1137 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
1138 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
1139 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
1140 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
1141 | ||
5fba344c HMH |
1142 | /* don't list other alternatives as we install a notify handler on the 570 */ |
1143 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
1144 | ||
1da177e4 LT |
1145 | #define dock_docked() (_sta(dock_handle) & 1) |
1146 | ||
a5763f22 | 1147 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 1148 | { |
fe08bc4b HMH |
1149 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
1150 | ||
5fba344c HMH |
1151 | IBM_HANDLE_INIT(dock); |
1152 | IBM_HANDLE_INIT(pci); | |
1153 | ||
fe08bc4b HMH |
1154 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
1155 | str_supported(dock_handle != NULL)); | |
1156 | ||
5fba344c HMH |
1157 | return (dock_handle)? 0 : 1; |
1158 | } | |
1159 | ||
56b6aeb0 HMH |
1160 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
1161 | { | |
1162 | int docked = dock_docked(); | |
1163 | int pci = ibm->hid && strstr(ibm->hid, IBM_PCI_HID); | |
1164 | ||
1165 | if (event == 1 && !pci) /* 570 */ | |
1166 | acpi_bus_generate_event(ibm->device, event, 1); /* button */ | |
1167 | else if (event == 1 && pci) /* 570 */ | |
1168 | acpi_bus_generate_event(ibm->device, event, 3); /* dock */ | |
1169 | else if (event == 3 && docked) | |
1170 | acpi_bus_generate_event(ibm->device, event, 1); /* button */ | |
1171 | else if (event == 3 && !docked) | |
1172 | acpi_bus_generate_event(ibm->device, event, 2); /* undock */ | |
1173 | else if (event == 0 && docked) | |
1174 | acpi_bus_generate_event(ibm->device, event, 3); /* dock */ | |
1175 | else { | |
1176 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
1177 | event, _sta(dock_handle)); | |
1178 | acpi_bus_generate_event(ibm->device, event, 0); /* unknown */ | |
1179 | } | |
1180 | } | |
1181 | ||
78f81cc4 | 1182 | static int dock_read(char *p) |
1da177e4 LT |
1183 | { |
1184 | int len = 0; | |
1185 | int docked = dock_docked(); | |
1186 | ||
1187 | if (!dock_handle) | |
1188 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1189 | else if (!docked) | |
1190 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
1191 | else { | |
1192 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
1193 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
1194 | } | |
1195 | ||
1196 | return len; | |
1197 | } | |
1198 | ||
78f81cc4 | 1199 | static int dock_write(char *buf) |
1da177e4 LT |
1200 | { |
1201 | char *cmd; | |
1202 | ||
1203 | if (!dock_docked()) | |
78f81cc4 | 1204 | return -ENODEV; |
1da177e4 LT |
1205 | |
1206 | while ((cmd = next_cmd(&buf))) { | |
1207 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
1208 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
1209 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
1210 | return -EIO; |
1211 | } else if (strlencmp(cmd, "dock") == 0) { | |
1212 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
1213 | return -EIO; | |
1214 | } else | |
1215 | return -EINVAL; | |
1da177e4 | 1216 | } |
56b6aeb0 HMH |
1217 | |
1218 | return 0; | |
1da177e4 | 1219 | } |
56b6aeb0 | 1220 | |
a5763f22 HMH |
1221 | static struct ibm_struct dock_driver_data[2] = { |
1222 | { | |
1223 | .name = "dock", | |
1224 | .read = dock_read, | |
1225 | .write = dock_write, | |
1226 | .notify = dock_notify, | |
1227 | .handle = &dock_handle, | |
1228 | .type = ACPI_SYSTEM_NOTIFY, | |
1229 | }, | |
1230 | { | |
1231 | .name = "dock", | |
1232 | .hid = IBM_PCI_HID, | |
1233 | .notify = dock_notify, | |
1234 | .handle = &pci_handle, | |
1235 | .type = ACPI_SYSTEM_NOTIFY, | |
1236 | }, | |
1237 | }; | |
1238 | ||
85998248 | 1239 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
1240 | |
1241 | /************************************************************************* | |
1242 | * Bay subdriver | |
1243 | */ | |
1da177e4 | 1244 | |
85998248 | 1245 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
56b6aeb0 HMH |
1246 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
1247 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
1248 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
1249 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
1250 | ); /* A21e, R30, R31 */ | |
1251 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
1252 | "_EJ0", /* all others */ | |
1253 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
1254 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
1255 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
1256 | ); /* all others */ | |
1257 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
1258 | "_EJ0", /* 770x */ | |
1259 | ); /* all others */ | |
1260 | ||
a5763f22 | 1261 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 1262 | { |
fe08bc4b HMH |
1263 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
1264 | ||
5fba344c HMH |
1265 | IBM_HANDLE_INIT(bay); |
1266 | if (bay_handle) | |
1267 | IBM_HANDLE_INIT(bay_ej); | |
1268 | IBM_HANDLE_INIT(bay2); | |
1269 | if (bay2_handle) | |
1270 | IBM_HANDLE_INIT(bay2_ej); | |
1271 | ||
d8fd94d9 HMH |
1272 | tp_features.bay_status = bay_handle && |
1273 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
1274 | tp_features.bay_status2 = bay2_handle && | |
1275 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 1276 | |
d8fd94d9 HMH |
1277 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
1278 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
1279 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
1280 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 1281 | |
fe08bc4b HMH |
1282 | vdbg_printk(TPACPI_DBG_INIT, |
1283 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
1284 | str_supported(tp_features.bay_status), |
1285 | str_supported(tp_features.bay_eject), | |
1286 | str_supported(tp_features.bay_status2), | |
1287 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 1288 | |
d8fd94d9 HMH |
1289 | return (tp_features.bay_status || tp_features.bay_eject || |
1290 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
1291 | } |
1292 | ||
56b6aeb0 HMH |
1293 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
1294 | { | |
1295 | acpi_bus_generate_event(ibm->device, event, 0); | |
1296 | } | |
1297 | ||
78f81cc4 BD |
1298 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
1299 | ||
1300 | static int bay_read(char *p) | |
1da177e4 LT |
1301 | { |
1302 | int len = 0; | |
78f81cc4 BD |
1303 | int occupied = bay_occupied(bay); |
1304 | int occupied2 = bay_occupied(bay2); | |
1305 | int eject, eject2; | |
1306 | ||
d8fd94d9 HMH |
1307 | len += sprintf(p + len, "status:\t\t%s\n", |
1308 | tp_features.bay_status ? | |
1309 | (occupied ? "occupied" : "unoccupied") : | |
1310 | "not supported"); | |
1311 | if (tp_features.bay_status2) | |
78f81cc4 BD |
1312 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
1313 | "occupied" : "unoccupied"); | |
1314 | ||
d8fd94d9 HMH |
1315 | eject = tp_features.bay_eject && occupied; |
1316 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
1317 | |
1318 | if (eject && eject2) | |
1319 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
1320 | else if (eject) | |
1da177e4 | 1321 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
1322 | else if (eject2) |
1323 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
1324 | |
1325 | return len; | |
1326 | } | |
1327 | ||
78f81cc4 | 1328 | static int bay_write(char *buf) |
1da177e4 LT |
1329 | { |
1330 | char *cmd; | |
1331 | ||
d8fd94d9 | 1332 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
1333 | return -ENODEV; |
1334 | ||
1da177e4 | 1335 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 1336 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
1337 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
1338 | return -EIO; | |
d8fd94d9 | 1339 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
1340 | strlencmp(cmd, "eject2") == 0) { |
1341 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
1342 | return -EIO; |
1343 | } else | |
1344 | return -EINVAL; | |
1345 | } | |
1346 | ||
1347 | return 0; | |
78f81cc4 | 1348 | } |
a5763f22 HMH |
1349 | |
1350 | static struct ibm_struct bay_driver_data = { | |
1351 | .name = "bay", | |
1352 | .read = bay_read, | |
1353 | .write = bay_write, | |
1354 | .notify = bay_notify, | |
1355 | .handle = &bay_handle, | |
1356 | .type = ACPI_SYSTEM_NOTIFY, | |
1357 | }; | |
1358 | ||
85998248 | 1359 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 1360 | |
56b6aeb0 HMH |
1361 | /************************************************************************* |
1362 | * CMOS subdriver | |
1363 | */ | |
1364 | ||
a5763f22 | 1365 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 1366 | { |
fe08bc4b HMH |
1367 | vdbg_printk(TPACPI_DBG_INIT, |
1368 | "initializing cmos commands subdriver\n"); | |
1369 | ||
5fba344c HMH |
1370 | IBM_HANDLE_INIT(cmos); |
1371 | ||
fe08bc4b HMH |
1372 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
1373 | str_supported(cmos_handle != NULL)); | |
5fba344c HMH |
1374 | return (cmos_handle)? 0 : 1; |
1375 | } | |
1376 | ||
56b6aeb0 | 1377 | static int cmos_eval(int cmos_cmd) |
1da177e4 | 1378 | { |
56b6aeb0 HMH |
1379 | if (cmos_handle) |
1380 | return acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd); | |
1381 | else | |
1382 | return 1; | |
1da177e4 LT |
1383 | } |
1384 | ||
78f81cc4 | 1385 | static int cmos_read(char *p) |
1da177e4 LT |
1386 | { |
1387 | int len = 0; | |
1388 | ||
78f81cc4 BD |
1389 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1390 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
1391 | if (!cmos_handle) |
1392 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1393 | else { | |
1394 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 1395 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
1396 | } |
1397 | ||
1398 | return len; | |
1399 | } | |
1400 | ||
78f81cc4 | 1401 | static int cmos_write(char *buf) |
1da177e4 LT |
1402 | { |
1403 | char *cmd; | |
1404 | int cmos_cmd; | |
1405 | ||
1406 | if (!cmos_handle) | |
1407 | return -EINVAL; | |
1408 | ||
1409 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
1410 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
1411 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
1412 | /* cmos_cmd set */ |
1413 | } else | |
1414 | return -EINVAL; | |
1415 | ||
78f81cc4 | 1416 | if (!cmos_eval(cmos_cmd)) |
1da177e4 LT |
1417 | return -EIO; |
1418 | } | |
1419 | ||
1420 | return 0; | |
78f81cc4 BD |
1421 | } |
1422 | ||
a5763f22 HMH |
1423 | static struct ibm_struct cmos_driver_data = { |
1424 | .name = "cmos", | |
1425 | .read = cmos_read, | |
1426 | .write = cmos_write, | |
1427 | }; | |
56b6aeb0 HMH |
1428 | |
1429 | /************************************************************************* | |
1430 | * LED subdriver | |
1431 | */ | |
1432 | ||
9a8e1738 | 1433 | static enum led_access_mode led_supported; |
78f81cc4 | 1434 | |
56b6aeb0 HMH |
1435 | IBM_HANDLE(led, ec, "SLED", /* 570 */ |
1436 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
1437 | "LED", /* all others */ | |
1438 | ); /* R30, R31 */ | |
1439 | ||
a5763f22 | 1440 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 1441 | { |
fe08bc4b HMH |
1442 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
1443 | ||
5fba344c HMH |
1444 | IBM_HANDLE_INIT(led); |
1445 | ||
78f81cc4 BD |
1446 | if (!led_handle) |
1447 | /* led not supported on R30, R31 */ | |
efa27145 | 1448 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
1449 | else if (strlencmp(led_path, "SLED") == 0) |
1450 | /* 570 */ | |
efa27145 | 1451 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
1452 | else if (strlencmp(led_path, "SYSL") == 0) |
1453 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 1454 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
1455 | else |
1456 | /* all others */ | |
efa27145 | 1457 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 1458 | |
fe08bc4b HMH |
1459 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
1460 | str_supported(led_supported), led_supported); | |
1461 | ||
5fba344c | 1462 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
1463 | } |
1464 | ||
1465 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
1466 | ||
1467 | static int led_read(char *p) | |
1da177e4 LT |
1468 | { |
1469 | int len = 0; | |
1470 | ||
78f81cc4 BD |
1471 | if (!led_supported) { |
1472 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1473 | return len; | |
1474 | } | |
1475 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
1476 | ||
efa27145 | 1477 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
1478 | /* 570 */ |
1479 | int i, status; | |
1480 | for (i = 0; i < 8; i++) { | |
1481 | if (!acpi_evalf(ec_handle, | |
1482 | &status, "GLED", "dd", 1 << i)) | |
1483 | return -EIO; | |
1484 | len += sprintf(p + len, "%d:\t\t%s\n", | |
1485 | i, led_status(status)); | |
1486 | } | |
1487 | } | |
1488 | ||
1da177e4 | 1489 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 1490 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
1491 | |
1492 | return len; | |
1493 | } | |
1494 | ||
78f81cc4 BD |
1495 | /* off, on, blink */ |
1496 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
1497 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
1498 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
1499 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
1500 | ||
78f81cc4 | 1501 | static int led_write(char *buf) |
1da177e4 LT |
1502 | { |
1503 | char *cmd; | |
78f81cc4 BD |
1504 | int led, ind, ret; |
1505 | ||
1506 | if (!led_supported) | |
1507 | return -ENODEV; | |
1da177e4 LT |
1508 | |
1509 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 1510 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
1511 | return -EINVAL; |
1512 | ||
78f81cc4 BD |
1513 | if (strstr(cmd, "off")) { |
1514 | ind = 0; | |
1da177e4 | 1515 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
1516 | ind = 1; |
1517 | } else if (strstr(cmd, "blink")) { | |
1518 | ind = 2; | |
1da177e4 LT |
1519 | } else |
1520 | return -EINVAL; | |
78f81cc4 | 1521 | |
efa27145 | 1522 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
1523 | /* 570 */ |
1524 | led = 1 << led; | |
1da177e4 | 1525 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 1526 | led, led_sled_arg1[ind])) |
1da177e4 | 1527 | return -EIO; |
efa27145 | 1528 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
1529 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
1530 | led = 1 << led; | |
efa27145 | 1531 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
1532 | if (ret >= 0) |
1533 | ret = | |
efa27145 | 1534 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 1535 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
1536 | if (ret >= 0) |
1537 | ret = | |
efa27145 | 1538 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 1539 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
1540 | if (ret < 0) |
1541 | return ret; | |
1542 | } else { | |
1543 | /* all others */ | |
1544 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
1545 | led, led_led_arg1[ind])) | |
1da177e4 | 1546 | return -EIO; |
78f81cc4 BD |
1547 | } |
1548 | } | |
1549 | ||
1550 | return 0; | |
1551 | } | |
1552 | ||
a5763f22 HMH |
1553 | static struct ibm_struct led_driver_data = { |
1554 | .name = "led", | |
1555 | .read = led_read, | |
1556 | .write = led_write, | |
1557 | }; | |
1558 | ||
56b6aeb0 HMH |
1559 | /************************************************************************* |
1560 | * Beep subdriver | |
1561 | */ | |
1562 | ||
1563 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
1564 | ||
a5763f22 | 1565 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 1566 | { |
fe08bc4b HMH |
1567 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
1568 | ||
5fba344c HMH |
1569 | IBM_HANDLE_INIT(beep); |
1570 | ||
fe08bc4b HMH |
1571 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
1572 | str_supported(beep_handle != NULL)); | |
1573 | ||
5fba344c HMH |
1574 | return (beep_handle)? 0 : 1; |
1575 | } | |
1576 | ||
78f81cc4 BD |
1577 | static int beep_read(char *p) |
1578 | { | |
1579 | int len = 0; | |
1580 | ||
1581 | if (!beep_handle) | |
1582 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1583 | else { | |
1584 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
1585 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
1586 | } | |
1587 | ||
1588 | return len; | |
1589 | } | |
1590 | ||
1591 | static int beep_write(char *buf) | |
1592 | { | |
1593 | char *cmd; | |
1594 | int beep_cmd; | |
1595 | ||
1596 | if (!beep_handle) | |
1597 | return -ENODEV; | |
1598 | ||
1599 | while ((cmd = next_cmd(&buf))) { | |
1600 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
1601 | beep_cmd >= 0 && beep_cmd <= 17) { | |
1602 | /* beep_cmd set */ | |
1603 | } else | |
1604 | return -EINVAL; | |
1605 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
1606 | return -EIO; | |
1607 | } | |
1608 | ||
1609 | return 0; | |
1610 | } | |
1611 | ||
a5763f22 HMH |
1612 | static struct ibm_struct beep_driver_data = { |
1613 | .name = "beep", | |
1614 | .read = beep_read, | |
1615 | .write = beep_write, | |
1616 | }; | |
1617 | ||
56b6aeb0 HMH |
1618 | /************************************************************************* |
1619 | * Thermal subdriver | |
1620 | */ | |
78f81cc4 | 1621 | |
a26f878a | 1622 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 1623 | |
a5763f22 | 1624 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 1625 | { |
60eb0b35 HMH |
1626 | u8 t, ta1, ta2; |
1627 | int i; | |
5fba344c HMH |
1628 | int acpi_tmp7; |
1629 | ||
fe08bc4b HMH |
1630 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
1631 | ||
5fba344c | 1632 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 HMH |
1633 | |
1634 | if (ibm_thinkpad_ec_found && experimental) { | |
1635 | /* | |
1636 | * Direct EC access mode: sensors at registers | |
1637 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
1638 | * non-implemented, thermal sensors return 0x80 when | |
1639 | * not available | |
1640 | */ | |
78f81cc4 | 1641 | |
60eb0b35 HMH |
1642 | ta1 = ta2 = 0; |
1643 | for (i = 0; i < 8; i++) { | |
1644 | if (likely(acpi_ec_read(0x78 + i, &t))) { | |
1645 | ta1 |= t; | |
1646 | } else { | |
1647 | ta1 = 0; | |
1648 | break; | |
1649 | } | |
1650 | if (likely(acpi_ec_read(0xC0 + i, &t))) { | |
1651 | ta2 |= t; | |
1652 | } else { | |
1653 | ta1 = 0; | |
1654 | break; | |
1655 | } | |
1656 | } | |
1657 | if (ta1 == 0) { | |
1658 | /* This is sheer paranoia, but we handle it anyway */ | |
1659 | if (acpi_tmp7) { | |
1660 | printk(IBM_ERR | |
1661 | "ThinkPad ACPI EC access misbehaving, " | |
1662 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 1663 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 HMH |
1664 | } else { |
1665 | printk(IBM_ERR | |
1666 | "ThinkPad ACPI EC access misbehaving, " | |
1667 | "disabling thermal sensors access\n"); | |
efa27145 | 1668 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
1669 | } |
1670 | } else { | |
1671 | thermal_read_mode = | |
1672 | (ta2 != 0) ? | |
efa27145 | 1673 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
1674 | } |
1675 | } else if (acpi_tmp7) { | |
a26f878a HMH |
1676 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
1677 | /* 600e/x, 770e, 770x */ | |
efa27145 | 1678 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
1679 | } else { |
1680 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 1681 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
1682 | } |
1683 | } else { | |
1684 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 1685 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 1686 | } |
78f81cc4 | 1687 | |
fe08bc4b HMH |
1688 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
1689 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
1690 | thermal_read_mode); | |
1691 | ||
5fba344c | 1692 | return (thermal_read_mode != TPACPI_THERMAL_NONE)? 0 : 1; |
78f81cc4 BD |
1693 | } |
1694 | ||
a26f878a | 1695 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) |
78f81cc4 | 1696 | { |
a26f878a | 1697 | int i, t; |
60eb0b35 | 1698 | s8 tmp; |
a26f878a | 1699 | char tmpi[] = "TMPi"; |
78f81cc4 | 1700 | |
a26f878a HMH |
1701 | if (!s) |
1702 | return -EINVAL; | |
78f81cc4 | 1703 | |
a26f878a | 1704 | switch (thermal_read_mode) { |
efa27145 HMH |
1705 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 |
1706 | case TPACPI_THERMAL_TPEC_16: | |
60eb0b35 HMH |
1707 | for (i = 0; i < 8; i++) { |
1708 | if (!acpi_ec_read(0xC0 + i, &tmp)) | |
1709 | return -EIO; | |
1710 | s->temp[i + 8] = tmp * 1000; | |
1711 | } | |
1712 | /* fallthrough */ | |
1713 | #endif | |
efa27145 | 1714 | case TPACPI_THERMAL_TPEC_8: |
60eb0b35 HMH |
1715 | for (i = 0; i < 8; i++) { |
1716 | if (!acpi_ec_read(0x78 + i, &tmp)) | |
78f81cc4 | 1717 | return -EIO; |
60eb0b35 HMH |
1718 | s->temp[i] = tmp * 1000; |
1719 | } | |
efa27145 | 1720 | return (thermal_read_mode == TPACPI_THERMAL_TPEC_16) ? 16 : 8; |
78f81cc4 | 1721 | |
efa27145 | 1722 | case TPACPI_THERMAL_ACPI_UPDT: |
a26f878a HMH |
1723 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) |
1724 | return -EIO; | |
78f81cc4 BD |
1725 | for (i = 0; i < 8; i++) { |
1726 | tmpi[3] = '0' + i; | |
1727 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
1728 | return -EIO; | |
a26f878a | 1729 | s->temp[i] = (t - 2732) * 100; |
78f81cc4 | 1730 | } |
a26f878a | 1731 | return 8; |
78f81cc4 | 1732 | |
efa27145 | 1733 | case TPACPI_THERMAL_ACPI_TMP07: |
78f81cc4 BD |
1734 | for (i = 0; i < 8; i++) { |
1735 | tmpi[3] = '0' + i; | |
1736 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
1737 | return -EIO; | |
a26f878a | 1738 | s->temp[i] = t * 1000; |
78f81cc4 | 1739 | } |
a26f878a | 1740 | return 8; |
78f81cc4 | 1741 | |
efa27145 | 1742 | case TPACPI_THERMAL_NONE: |
a26f878a HMH |
1743 | default: |
1744 | return 0; | |
78f81cc4 | 1745 | } |
a26f878a HMH |
1746 | } |
1747 | ||
1748 | static int thermal_read(char *p) | |
1749 | { | |
1750 | int len = 0; | |
1751 | int n, i; | |
1752 | struct ibm_thermal_sensors_struct t; | |
1753 | ||
1754 | n = thermal_get_sensors(&t); | |
1755 | if (unlikely(n < 0)) | |
1756 | return n; | |
1757 | ||
1758 | len += sprintf(p + len, "temperatures:\t"); | |
1759 | ||
1760 | if (n > 0) { | |
1761 | for (i = 0; i < (n - 1); i++) | |
1762 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
1763 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
1764 | } else | |
1765 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
1766 | |
1767 | return len; | |
1768 | } | |
1769 | ||
a5763f22 HMH |
1770 | static struct ibm_struct thermal_driver_data = { |
1771 | .name = "thermal", | |
1772 | .read = thermal_read, | |
1773 | }; | |
1774 | ||
56b6aeb0 HMH |
1775 | /************************************************************************* |
1776 | * EC Dump subdriver | |
1777 | */ | |
1778 | ||
78f81cc4 BD |
1779 | static u8 ecdump_regs[256]; |
1780 | ||
1781 | static int ecdump_read(char *p) | |
1782 | { | |
1783 | int len = 0; | |
1784 | int i, j; | |
1785 | u8 v; | |
1786 | ||
1787 | len += sprintf(p + len, "EC " | |
1788 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
1789 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
1790 | for (i = 0; i < 256; i += 16) { | |
1791 | len += sprintf(p + len, "EC 0x%02x:", i); | |
1792 | for (j = 0; j < 16; j++) { | |
1793 | if (!acpi_ec_read(i + j, &v)) | |
1794 | break; | |
1795 | if (v != ecdump_regs[i + j]) | |
1796 | len += sprintf(p + len, " *%02x", v); | |
1797 | else | |
1798 | len += sprintf(p + len, " %02x", v); | |
1799 | ecdump_regs[i + j] = v; | |
1800 | } | |
1801 | len += sprintf(p + len, "\n"); | |
1802 | if (j != 16) | |
1803 | break; | |
1804 | } | |
1805 | ||
1806 | /* These are way too dangerous to advertise openly... */ | |
1807 | #if 0 | |
1808 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
1809 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
1810 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
1811 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
1812 | #endif | |
1813 | return len; | |
1814 | } | |
1815 | ||
1816 | static int ecdump_write(char *buf) | |
1817 | { | |
1818 | char *cmd; | |
1819 | int i, v; | |
1820 | ||
1821 | while ((cmd = next_cmd(&buf))) { | |
1822 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
1823 | /* i and v set */ | |
1824 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
1825 | /* i and v set */ | |
1826 | } else | |
1827 | return -EINVAL; | |
1828 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
1829 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
1830 | return -EIO; |
1831 | } else | |
1832 | return -EINVAL; | |
1833 | } | |
1834 | ||
1835 | return 0; | |
78f81cc4 BD |
1836 | } |
1837 | ||
a5763f22 HMH |
1838 | static struct ibm_struct ecdump_driver_data = { |
1839 | .name = "ecdump", | |
1840 | .read = ecdump_read, | |
1841 | .write = ecdump_write, | |
92641177 | 1842 | .flags.experimental = 1, |
a5763f22 HMH |
1843 | }; |
1844 | ||
56b6aeb0 HMH |
1845 | /************************************************************************* |
1846 | * Backlight/brightness subdriver | |
1847 | */ | |
1848 | ||
1849 | static struct backlight_device *ibm_backlight_device = NULL; | |
1850 | ||
1851 | static struct backlight_ops ibm_backlight_data = { | |
1852 | .get_brightness = brightness_get, | |
1853 | .update_status = brightness_update_status, | |
1854 | }; | |
1855 | ||
a5763f22 | 1856 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
1857 | { |
1858 | int b; | |
1859 | ||
fe08bc4b HMH |
1860 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
1861 | ||
56b6aeb0 HMH |
1862 | b = brightness_get(NULL); |
1863 | if (b < 0) | |
1864 | return b; | |
1865 | ||
1866 | ibm_backlight_device = backlight_device_register("ibm", NULL, NULL, | |
1867 | &ibm_backlight_data); | |
1868 | if (IS_ERR(ibm_backlight_device)) { | |
1869 | printk(IBM_ERR "Could not register backlight device\n"); | |
1870 | return PTR_ERR(ibm_backlight_device); | |
1871 | } | |
fe08bc4b | 1872 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 HMH |
1873 | |
1874 | ibm_backlight_device->props.max_brightness = 7; | |
1875 | ibm_backlight_device->props.brightness = b; | |
1876 | backlight_update_status(ibm_backlight_device); | |
1877 | ||
1878 | return 0; | |
1879 | } | |
1880 | ||
1881 | static void brightness_exit(void) | |
1882 | { | |
1883 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
1884 | vdbg_printk(TPACPI_DBG_EXIT, |
1885 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
1886 | backlight_device_unregister(ibm_backlight_device); |
1887 | ibm_backlight_device = NULL; | |
1888 | } | |
1889 | } | |
1890 | ||
1891 | static int brightness_update_status(struct backlight_device *bd) | |
1892 | { | |
1893 | return brightness_set( | |
1894 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
1895 | bd->props.power == FB_BLANK_UNBLANK) ? | |
1896 | bd->props.brightness : 0); | |
1897 | } | |
1898 | ||
8acb0250 HM |
1899 | static int brightness_get(struct backlight_device *bd) |
1900 | { | |
8d297264 HMH |
1901 | u8 level; |
1902 | if (!acpi_ec_read(brightness_offset, &level)) | |
1903 | return -EIO; | |
8acb0250 | 1904 | |
8d297264 | 1905 | level &= 0x7; |
fb87a811 | 1906 | |
8d297264 | 1907 | return level; |
8acb0250 HM |
1908 | } |
1909 | ||
8acb0250 | 1910 | static int brightness_set(int value) |
1da177e4 | 1911 | { |
78f81cc4 | 1912 | int cmos_cmd, inc, i; |
8acb0250 HM |
1913 | int current_value = brightness_get(NULL); |
1914 | ||
1915 | value &= 7; | |
1916 | ||
56b6aeb0 | 1917 | cmos_cmd = value > current_value ? TP_CMOS_BRIGHTNESS_UP : TP_CMOS_BRIGHTNESS_DOWN; |
8acb0250 HM |
1918 | inc = value > current_value ? 1 : -1; |
1919 | for (i = current_value; i != value; i += inc) { | |
1920 | if (!cmos_eval(cmos_cmd)) | |
1921 | return -EIO; | |
1922 | if (!acpi_ec_write(brightness_offset, i + inc)) | |
1923 | return -EIO; | |
1924 | } | |
1925 | ||
1926 | return 0; | |
1927 | } | |
1928 | ||
56b6aeb0 HMH |
1929 | static int brightness_read(char *p) |
1930 | { | |
1931 | int len = 0; | |
1932 | int level; | |
1933 | ||
1934 | if ((level = brightness_get(NULL)) < 0) { | |
1935 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
1936 | } else { | |
1937 | len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); | |
1938 | len += sprintf(p + len, "commands:\tup, down\n"); | |
1939 | len += sprintf(p + len, "commands:\tlevel <level>" | |
1940 | " (<level> is 0-7)\n"); | |
1941 | } | |
1942 | ||
1943 | return len; | |
1944 | } | |
1945 | ||
8acb0250 HM |
1946 | static int brightness_write(char *buf) |
1947 | { | |
1948 | int level; | |
78f81cc4 | 1949 | int new_level; |
1da177e4 | 1950 | char *cmd; |
1da177e4 LT |
1951 | |
1952 | while ((cmd = next_cmd(&buf))) { | |
8acb0250 HM |
1953 | if ((level = brightness_get(NULL)) < 0) |
1954 | return level; | |
78f81cc4 BD |
1955 | level &= 7; |
1956 | ||
1957 | if (strlencmp(cmd, "up") == 0) { | |
1958 | new_level = level == 7 ? 7 : level + 1; | |
1959 | } else if (strlencmp(cmd, "down") == 0) { | |
1960 | new_level = level == 0 ? 0 : level - 1; | |
1961 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
1962 | new_level >= 0 && new_level <= 7) { | |
1963 | /* new_level set */ | |
1964 | } else | |
1965 | return -EINVAL; | |
1966 | ||
8acb0250 | 1967 | brightness_set(new_level); |
78f81cc4 BD |
1968 | } |
1969 | ||
1970 | return 0; | |
1971 | } | |
1972 | ||
a5763f22 HMH |
1973 | static struct ibm_struct brightness_driver_data = { |
1974 | .name = "brightness", | |
1975 | .read = brightness_read, | |
1976 | .write = brightness_write, | |
1977 | .exit = brightness_exit, | |
1978 | }; | |
1979 | ||
56b6aeb0 HMH |
1980 | /************************************************************************* |
1981 | * Volume subdriver | |
1982 | */ | |
fb87a811 | 1983 | |
78f81cc4 BD |
1984 | static int volume_read(char *p) |
1985 | { | |
1986 | int len = 0; | |
1987 | u8 level; | |
1988 | ||
1989 | if (!acpi_ec_read(volume_offset, &level)) { | |
1990 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
1991 | } else { | |
1992 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
1993 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
1994 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
1995 | len += sprintf(p + len, "commands:\tlevel <level>" | |
1996 | " (<level> is 0-15)\n"); | |
1997 | } | |
1998 | ||
1999 | return len; | |
2000 | } | |
2001 | ||
78f81cc4 BD |
2002 | static int volume_write(char *buf) |
2003 | { | |
2004 | int cmos_cmd, inc, i; | |
2005 | u8 level, mute; | |
2006 | int new_level, new_mute; | |
2007 | char *cmd; | |
2008 | ||
2009 | while ((cmd = next_cmd(&buf))) { | |
2010 | if (!acpi_ec_read(volume_offset, &level)) | |
2011 | return -EIO; | |
2012 | new_mute = mute = level & 0x40; | |
2013 | new_level = level = level & 0xf; | |
2014 | ||
2015 | if (strlencmp(cmd, "up") == 0) { | |
2016 | if (mute) | |
2017 | new_mute = 0; | |
2018 | else | |
2019 | new_level = level == 15 ? 15 : level + 1; | |
2020 | } else if (strlencmp(cmd, "down") == 0) { | |
2021 | if (mute) | |
2022 | new_mute = 0; | |
2023 | else | |
2024 | new_level = level == 0 ? 0 : level - 1; | |
2025 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
2026 | new_level >= 0 && new_level <= 15) { | |
2027 | /* new_level set */ | |
2028 | } else if (strlencmp(cmd, "mute") == 0) { | |
2029 | new_mute = 0x40; | |
1da177e4 LT |
2030 | } else |
2031 | return -EINVAL; | |
2032 | ||
78f81cc4 | 2033 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 2034 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
2035 | inc = new_level > level ? 1 : -1; |
2036 | ||
2037 | if (mute && (!cmos_eval(cmos_cmd) || | |
2038 | !acpi_ec_write(volume_offset, level))) | |
2039 | return -EIO; | |
2040 | ||
2041 | for (i = level; i != new_level; i += inc) | |
2042 | if (!cmos_eval(cmos_cmd) || | |
2043 | !acpi_ec_write(volume_offset, i + inc)) | |
2044 | return -EIO; | |
2045 | ||
e062e034 | 2046 | if (mute && (!cmos_eval(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
2047 | !acpi_ec_write(volume_offset, |
2048 | new_level + mute))) | |
2049 | return -EIO; | |
2050 | } | |
2051 | ||
2052 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 2053 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 BD |
2054 | |
2055 | if (!cmos_eval(cmos_cmd) || | |
2056 | !acpi_ec_write(volume_offset, level + new_mute)) | |
2057 | return -EIO; | |
2058 | } | |
2059 | } | |
2060 | ||
2061 | return 0; | |
2062 | } | |
2063 | ||
a5763f22 HMH |
2064 | static struct ibm_struct volume_driver_data = { |
2065 | .name = "volume", | |
2066 | .read = volume_read, | |
2067 | .write = volume_write, | |
2068 | }; | |
56b6aeb0 HMH |
2069 | |
2070 | /************************************************************************* | |
2071 | * Fan subdriver | |
2072 | */ | |
2073 | ||
2074 | /* | |
2075 | * FAN ACCESS MODES | |
2076 | * | |
efa27145 | 2077 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
2078 | * ACPI GFAN method: returns fan level |
2079 | * | |
efa27145 | 2080 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 2081 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 2082 | * |
efa27145 | 2083 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
2084 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
2085 | * | |
f51d1a39 HMH |
2086 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
2087 | * it for writing. | |
56b6aeb0 | 2088 | * |
efa27145 | 2089 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
2090 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
2091 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
2092 | * |
2093 | * Fan speed changes of any sort (including those caused by the | |
2094 | * disengaged mode) are usually done slowly by the firmware as the | |
2095 | * maximum ammount of fan duty cycle change per second seems to be | |
2096 | * limited. | |
2097 | * | |
2098 | * Reading is not available if GFAN exists. | |
2099 | * Writing is not available if SFAN exists. | |
2100 | * | |
2101 | * Bits | |
2102 | * 7 automatic mode engaged; | |
2103 | * (default operation mode of the ThinkPad) | |
2104 | * fan level is ignored in this mode. | |
f51d1a39 | 2105 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 2106 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
2107 | * the tachometer while the fan controller ramps up |
2108 | * the speed (which can take up to a few *minutes*). | |
2109 | * Speeds up fan to 100% duty-cycle, which is far above | |
2110 | * the standard RPM levels. It is not impossible that | |
2111 | * it could cause hardware damage. | |
56b6aeb0 HMH |
2112 | * 5-3 unused in some models. Extra bits for fan level |
2113 | * in others, but still useless as all values above | |
2114 | * 7 map to the same speed as level 7 in these models. | |
2115 | * 2-0 fan level (0..7 usually) | |
2116 | * 0x00 = stop | |
2117 | * 0x07 = max (set when temperatures critical) | |
2118 | * Some ThinkPads may have other levels, see | |
efa27145 | 2119 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
2120 | * |
2121 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
2122 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
2123 | * does so, its initial value is meaningless (0x07). | |
2124 | * | |
2125 | * For firmware bugs, refer to: | |
2126 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
2127 | * | |
2128 | * ---- | |
2129 | * | |
2130 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
2131 | * Main fan tachometer reading (in RPM) | |
2132 | * | |
2133 | * This register is present on all ThinkPads with a new-style EC, and | |
2134 | * it is known not to be present on the A21m/e, and T22, as there is | |
2135 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
2136 | * ThinkPads from this same time period (and earlier) probably lack the | |
2137 | * tachometer as well. | |
2138 | * | |
2139 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
2140 | * was never fixed by IBM to report the EC firmware version string | |
2141 | * probably support the tachometer (like the early X models), so | |
2142 | * detecting it is quite hard. We need more data to know for sure. | |
2143 | * | |
2144 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
2145 | * might result. | |
2146 | * | |
f51d1a39 HMH |
2147 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
2148 | * mode. | |
56b6aeb0 HMH |
2149 | * |
2150 | * For firmware bugs, refer to: | |
2151 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
2152 | * | |
efa27145 | 2153 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
2154 | * ThinkPad X31, X40, X41. Not available in the X60. |
2155 | * | |
2156 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
2157 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
2158 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
2159 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
2160 | * | |
2161 | * The speeds are stored on handles | |
2162 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
2163 | * | |
2164 | * There are three default speed sets, acessible as handles: | |
2165 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
2166 | * | |
2167 | * ACPI DSDT switches which set is in use depending on various | |
2168 | * factors. | |
2169 | * | |
efa27145 | 2170 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
2171 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
2172 | * but the ACPI tables just mention level 7. | |
2173 | */ | |
2174 | ||
69ba91cb HMH |
2175 | static enum fan_status_access_mode fan_status_access_mode; |
2176 | static enum fan_control_access_mode fan_control_access_mode; | |
2177 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 2178 | |
778b4d74 HMH |
2179 | static u8 fan_control_initial_status; |
2180 | ||
25c68a33 | 2181 | static void fan_watchdog_fire(struct work_struct *ignored); |
16663a87 | 2182 | static int fan_watchdog_maxinterval; |
25c68a33 | 2183 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 2184 | |
56b6aeb0 HMH |
2185 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
2186 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
2187 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
2188 | ); /* all others */ | |
2189 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
2190 | "JFNS", /* 770x-JL */ | |
2191 | ); /* all others */ | |
2192 | ||
a5763f22 | 2193 | static int __init fan_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2194 | { |
fe08bc4b HMH |
2195 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); |
2196 | ||
efa27145 HMH |
2197 | fan_status_access_mode = TPACPI_FAN_NONE; |
2198 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
69ba91cb | 2199 | fan_control_commands = 0; |
16663a87 | 2200 | fan_watchdog_maxinterval = 0; |
d8fd94d9 | 2201 | tp_features.fan_ctrl_status_undef = 0; |
78f81cc4 | 2202 | |
5fba344c HMH |
2203 | IBM_HANDLE_INIT(fans); |
2204 | IBM_HANDLE_INIT(gfan); | |
2205 | IBM_HANDLE_INIT(sfan); | |
2206 | ||
78f81cc4 BD |
2207 | if (gfan_handle) { |
2208 | /* 570, 600e/x, 770e, 770x */ | |
efa27145 | 2209 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; |
69ba91cb HMH |
2210 | } else { |
2211 | /* all other ThinkPads: note that even old-style | |
2212 | * ThinkPad ECs supports the fan control register */ | |
778b4d74 HMH |
2213 | if (likely(acpi_ec_read(fan_status_offset, |
2214 | &fan_control_initial_status))) { | |
efa27145 | 2215 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; |
778b4d74 HMH |
2216 | |
2217 | /* In some ThinkPads, neither the EC nor the ACPI | |
2218 | * DSDT initialize the fan status, and it ends up | |
2219 | * being set to 0x07 when it *could* be either | |
2220 | * 0x07 or 0x80. | |
2221 | * | |
2222 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
2223 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
2224 | * to be buggy. */ | |
2225 | if (fan_control_initial_status == 0x07 && | |
2226 | ibm_thinkpad_ec_found && | |
2227 | ((ibm_thinkpad_ec_found[0] == '1' && | |
2228 | ibm_thinkpad_ec_found[1] == 'Y') || | |
2229 | (ibm_thinkpad_ec_found[0] == '7' && | |
2230 | (ibm_thinkpad_ec_found[1] == '6' || | |
2231 | ibm_thinkpad_ec_found[1] == '8' || | |
2232 | ibm_thinkpad_ec_found[1] == '0')) | |
2233 | )) { | |
2234 | printk(IBM_NOTICE | |
2235 | "fan_init: initial fan status is " | |
2236 | "unknown, assuming it is in auto " | |
2237 | "mode\n"); | |
d8fd94d9 | 2238 | tp_features.fan_ctrl_status_undef = 1; |
778b4d74 | 2239 | } |
69ba91cb HMH |
2240 | } else { |
2241 | printk(IBM_ERR | |
2242 | "ThinkPad ACPI EC access misbehaving, " | |
2243 | "fan status and control unavailable\n"); | |
5fba344c | 2244 | return 1; |
69ba91cb HMH |
2245 | } |
2246 | } | |
78f81cc4 | 2247 | |
69ba91cb HMH |
2248 | if (sfan_handle) { |
2249 | /* 570, 770x-JL */ | |
efa27145 | 2250 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; |
1c6a334e | 2251 | fan_control_commands |= |
efa27145 | 2252 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; |
78f81cc4 | 2253 | } else { |
69ba91cb HMH |
2254 | if (!gfan_handle) { |
2255 | /* gfan without sfan means no fan control */ | |
2256 | /* all other models implement TP EC 0x2f control */ | |
2257 | ||
2258 | if (fans_handle) { | |
a8b7a662 | 2259 | /* X31, X40, X41 */ |
69ba91cb | 2260 | fan_control_access_mode = |
efa27145 | 2261 | TPACPI_FAN_WR_ACPI_FANS; |
69ba91cb | 2262 | fan_control_commands |= |
efa27145 HMH |
2263 | TPACPI_FAN_CMD_SPEED | |
2264 | TPACPI_FAN_CMD_LEVEL | | |
2265 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb | 2266 | } else { |
efa27145 | 2267 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; |
a12095c2 | 2268 | fan_control_commands |= |
efa27145 HMH |
2269 | TPACPI_FAN_CMD_LEVEL | |
2270 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
2271 | } |
2272 | } | |
2273 | } | |
2274 | ||
fe08bc4b HMH |
2275 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
2276 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
2277 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
2278 | fan_status_access_mode, fan_control_access_mode); | |
2279 | ||
5fba344c HMH |
2280 | return (fan_status_access_mode != TPACPI_FAN_NONE || |
2281 | fan_control_access_mode != TPACPI_FAN_WR_NONE)? | |
2282 | 0 : 1; | |
69ba91cb | 2283 | } |
78f81cc4 | 2284 | |
c52f0aa5 | 2285 | static int fan_get_status(u8 *status) |
78f81cc4 | 2286 | { |
c52f0aa5 | 2287 | u8 s; |
78f81cc4 | 2288 | |
a8b7a662 | 2289 | /* TODO: |
efa27145 | 2290 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ |
a8b7a662 | 2291 | |
3ef8a609 | 2292 | switch (fan_status_access_mode) { |
efa27145 | 2293 | case TPACPI_FAN_RD_ACPI_GFAN: |
78f81cc4 | 2294 | /* 570, 600e/x, 770e, 770x */ |
c52f0aa5 HMH |
2295 | |
2296 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) | |
1da177e4 | 2297 | return -EIO; |
78f81cc4 | 2298 | |
c52f0aa5 HMH |
2299 | if (likely(status)) |
2300 | *status = s & 0x07; | |
3ef8a609 HMH |
2301 | |
2302 | break; | |
2303 | ||
efa27145 | 2304 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 2305 | /* all except 570, 600e/x, 770e, 770x */ |
c52f0aa5 | 2306 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
3ef8a609 | 2307 | return -EIO; |
78f81cc4 | 2308 | |
c52f0aa5 HMH |
2309 | if (likely(status)) |
2310 | *status = s; | |
2311 | ||
2312 | break; | |
2313 | ||
2314 | default: | |
2315 | return -ENXIO; | |
78f81cc4 BD |
2316 | } |
2317 | ||
c52f0aa5 HMH |
2318 | return 0; |
2319 | } | |
2320 | ||
56b6aeb0 HMH |
2321 | static void fan_exit(void) |
2322 | { | |
fe08bc4b | 2323 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending watchdogs\n"); |
56b6aeb0 HMH |
2324 | cancel_delayed_work(&fan_watchdog_task); |
2325 | flush_scheduled_work(); | |
2326 | } | |
2327 | ||
c52f0aa5 HMH |
2328 | static int fan_get_speed(unsigned int *speed) |
2329 | { | |
2330 | u8 hi, lo; | |
2331 | ||
2332 | switch (fan_status_access_mode) { | |
efa27145 | 2333 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 2334 | /* all except 570, 600e/x, 770e, 770x */ |
3ef8a609 HMH |
2335 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
2336 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
2337 | return -EIO; | |
3ef8a609 | 2338 | |
c52f0aa5 HMH |
2339 | if (likely(speed)) |
2340 | *speed = (hi << 8) | lo; | |
2341 | ||
2342 | break; | |
2343 | ||
2344 | default: | |
2345 | return -ENXIO; | |
2346 | } | |
2347 | ||
2348 | return 0; | |
2349 | } | |
2350 | ||
56b6aeb0 | 2351 | static void fan_watchdog_fire(struct work_struct *ignored) |
16663a87 | 2352 | { |
56b6aeb0 HMH |
2353 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); |
2354 | if (fan_set_enable()) { | |
2355 | printk(IBM_ERR "fan watchdog: error while enabling fan\n"); | |
2356 | /* reschedule for later */ | |
2357 | fan_watchdog_reset(); | |
2358 | } | |
16663a87 HMH |
2359 | } |
2360 | ||
2361 | static void fan_watchdog_reset(void) | |
2362 | { | |
2363 | static int fan_watchdog_active = 0; | |
2364 | ||
2365 | if (fan_watchdog_active) | |
2366 | cancel_delayed_work(&fan_watchdog_task); | |
2367 | ||
2368 | if (fan_watchdog_maxinterval > 0) { | |
2369 | fan_watchdog_active = 1; | |
2370 | if (!schedule_delayed_work(&fan_watchdog_task, | |
2371 | msecs_to_jiffies(fan_watchdog_maxinterval | |
2372 | * 1000))) { | |
2373 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
2374 | "watchdog will not trigger\n"); | |
2375 | } | |
2376 | } else | |
2377 | fan_watchdog_active = 0; | |
2378 | } | |
2379 | ||
18ad7996 | 2380 | static int fan_set_level(int level) |
78f81cc4 | 2381 | { |
18ad7996 | 2382 | switch (fan_control_access_mode) { |
efa27145 | 2383 | case TPACPI_FAN_WR_ACPI_SFAN: |
18ad7996 | 2384 | if (level >= 0 && level <= 7) { |
78f81cc4 BD |
2385 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
2386 | return -EIO; | |
18ad7996 HMH |
2387 | } else |
2388 | return -EINVAL; | |
2389 | break; | |
2390 | ||
efa27145 HMH |
2391 | case TPACPI_FAN_WR_ACPI_FANS: |
2392 | case TPACPI_FAN_WR_TPEC: | |
2393 | if ((level != TP_EC_FAN_AUTO) && | |
2394 | (level != TP_EC_FAN_FULLSPEED) && | |
a12095c2 HMH |
2395 | ((level < 0) || (level > 7))) |
2396 | return -EINVAL; | |
2397 | ||
2398 | if (!acpi_ec_write(fan_status_offset, level)) | |
2399 | return -EIO; | |
778b4d74 | 2400 | else |
d8fd94d9 | 2401 | tp_features.fan_ctrl_status_undef = 0; |
a12095c2 HMH |
2402 | break; |
2403 | ||
18ad7996 HMH |
2404 | default: |
2405 | return -ENXIO; | |
2406 | } | |
2407 | return 0; | |
2408 | } | |
2409 | ||
2410 | static int fan_set_enable(void) | |
2411 | { | |
1c6a334e HMH |
2412 | u8 s; |
2413 | int rc; | |
2414 | ||
18ad7996 | 2415 | switch (fan_control_access_mode) { |
efa27145 HMH |
2416 | case TPACPI_FAN_WR_ACPI_FANS: |
2417 | case TPACPI_FAN_WR_TPEC: | |
1c6a334e HMH |
2418 | if ((rc = fan_get_status(&s)) < 0) |
2419 | return rc; | |
2420 | ||
2421 | /* Don't go out of emergency fan mode */ | |
2422 | if (s != 7) | |
efa27145 | 2423 | s = TP_EC_FAN_AUTO; |
1c6a334e HMH |
2424 | |
2425 | if (!acpi_ec_write(fan_status_offset, s)) | |
2426 | return -EIO; | |
778b4d74 | 2427 | else |
d8fd94d9 | 2428 | tp_features.fan_ctrl_status_undef = 0; |
1c6a334e HMH |
2429 | break; |
2430 | ||
efa27145 | 2431 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e HMH |
2432 | if ((rc = fan_get_status(&s)) < 0) |
2433 | return rc; | |
2434 | ||
2435 | s &= 0x07; | |
2436 | ||
2437 | /* Set fan to at least level 4 */ | |
2438 | if (s < 4) | |
2439 | s = 4; | |
2440 | ||
2441 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) | |
18ad7996 HMH |
2442 | return -EIO; |
2443 | break; | |
2444 | ||
2445 | default: | |
2446 | return -ENXIO; | |
2447 | } | |
2448 | return 0; | |
2449 | } | |
2450 | ||
2451 | static int fan_set_disable(void) | |
2452 | { | |
2453 | switch (fan_control_access_mode) { | |
efa27145 HMH |
2454 | case TPACPI_FAN_WR_ACPI_FANS: |
2455 | case TPACPI_FAN_WR_TPEC: | |
18ad7996 HMH |
2456 | if (!acpi_ec_write(fan_status_offset, 0x00)) |
2457 | return -EIO; | |
778b4d74 | 2458 | else |
d8fd94d9 | 2459 | tp_features.fan_ctrl_status_undef = 0; |
18ad7996 HMH |
2460 | break; |
2461 | ||
efa27145 | 2462 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e HMH |
2463 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) |
2464 | return -EIO; | |
2465 | break; | |
2466 | ||
18ad7996 HMH |
2467 | default: |
2468 | return -ENXIO; | |
2469 | } | |
56b6aeb0 HMH |
2470 | return 0; |
2471 | } | |
2472 | ||
2473 | static int fan_set_speed(int speed) | |
2474 | { | |
2475 | switch (fan_control_access_mode) { | |
efa27145 | 2476 | case TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
2477 | if (speed >= 0 && speed <= 65535) { |
2478 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
2479 | speed, speed, speed)) | |
2480 | return -EIO; | |
2481 | } else | |
2482 | return -EINVAL; | |
2483 | break; | |
2484 | ||
2485 | default: | |
2486 | return -ENXIO; | |
2487 | } | |
2488 | return 0; | |
2489 | } | |
2490 | ||
2491 | static int fan_read(char *p) | |
2492 | { | |
2493 | int len = 0; | |
2494 | int rc; | |
2495 | u8 status; | |
2496 | unsigned int speed = 0; | |
2497 | ||
2498 | switch (fan_status_access_mode) { | |
efa27145 | 2499 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
2500 | /* 570, 600e/x, 770e, 770x */ |
2501 | if ((rc = fan_get_status(&status)) < 0) | |
2502 | return rc; | |
2503 | ||
2504 | len += sprintf(p + len, "status:\t\t%s\n" | |
2505 | "level:\t\t%d\n", | |
2506 | (status != 0) ? "enabled" : "disabled", status); | |
2507 | break; | |
2508 | ||
efa27145 | 2509 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 HMH |
2510 | /* all except 570, 600e/x, 770e, 770x */ |
2511 | if ((rc = fan_get_status(&status)) < 0) | |
2512 | return rc; | |
2513 | ||
d8fd94d9 | 2514 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 2515 | if (status != fan_control_initial_status) |
d8fd94d9 | 2516 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
2517 | else |
2518 | /* Return most likely status. In fact, it | |
2519 | * might be the only possible status */ | |
efa27145 | 2520 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
2521 | } |
2522 | ||
2523 | len += sprintf(p + len, "status:\t\t%s\n", | |
2524 | (status != 0) ? "enabled" : "disabled"); | |
2525 | ||
56b6aeb0 HMH |
2526 | if ((rc = fan_get_speed(&speed)) < 0) |
2527 | return rc; | |
2528 | ||
2529 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
2530 | ||
efa27145 | 2531 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
2532 | /* Disengaged mode takes precedence */ |
2533 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 2534 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
2535 | len += sprintf(p + len, "level:\t\tauto\n"); |
2536 | else | |
2537 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
2538 | break; | |
2539 | ||
efa27145 | 2540 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
2541 | default: |
2542 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2543 | } | |
2544 | ||
efa27145 | 2545 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
2546 | len += sprintf(p + len, "commands:\tlevel <level>"); |
2547 | ||
2548 | switch (fan_control_access_mode) { | |
efa27145 | 2549 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
2550 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
2551 | break; | |
2552 | ||
2553 | default: | |
2554 | len += sprintf(p + len, " (<level> is 0-7, " | |
2555 | "auto, disengaged)\n"); | |
2556 | break; | |
2557 | } | |
2558 | } | |
18ad7996 | 2559 | |
efa27145 | 2560 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
2561 | len += sprintf(p + len, "commands:\tenable, disable\n" |
2562 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
2563 | "1-120 (seconds))\n"); | |
1da177e4 | 2564 | |
efa27145 | 2565 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
2566 | len += sprintf(p + len, "commands:\tspeed <speed>" |
2567 | " (<speed> is 0-65535)\n"); | |
2568 | ||
2569 | return len; | |
78f81cc4 BD |
2570 | } |
2571 | ||
18ad7996 HMH |
2572 | static int fan_write_cmd_level(const char *cmd, int *rc) |
2573 | { | |
2574 | int level; | |
2575 | ||
a12095c2 | 2576 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 2577 | level = TP_EC_FAN_AUTO; |
a12095c2 | 2578 | else if (strlencmp(cmd, "level disengaged") == 0) |
efa27145 | 2579 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 2580 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
2581 | return 0; |
2582 | ||
2583 | if ((*rc = fan_set_level(level)) == -ENXIO) | |
2584 | printk(IBM_ERR "level command accepted for unsupported " | |
2585 | "access mode %d", fan_control_access_mode); | |
2586 | ||
2587 | return 1; | |
2588 | } | |
2589 | ||
2590 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
2591 | { | |
2592 | if (strlencmp(cmd, "enable") != 0) | |
2593 | return 0; | |
2594 | ||
2595 | if ((*rc = fan_set_enable()) == -ENXIO) | |
2596 | printk(IBM_ERR "enable command accepted for unsupported " | |
2597 | "access mode %d", fan_control_access_mode); | |
2598 | ||
2599 | return 1; | |
2600 | } | |
2601 | ||
2602 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
2603 | { | |
2604 | if (strlencmp(cmd, "disable") != 0) | |
2605 | return 0; | |
2606 | ||
2607 | if ((*rc = fan_set_disable()) == -ENXIO) | |
2608 | printk(IBM_ERR "disable command accepted for unsupported " | |
2609 | "access mode %d", fan_control_access_mode); | |
2610 | ||
2611 | return 1; | |
2612 | } | |
2613 | ||
2614 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
2615 | { | |
2616 | int speed; | |
2617 | ||
a8b7a662 HMH |
2618 | /* TODO: |
2619 | * Support speed <low> <medium> <high> ? */ | |
2620 | ||
18ad7996 HMH |
2621 | if (sscanf(cmd, "speed %d", &speed) != 1) |
2622 | return 0; | |
2623 | ||
2624 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
2625 | printk(IBM_ERR "speed command accepted for unsupported " | |
2626 | "access mode %d", fan_control_access_mode); | |
2627 | ||
2628 | return 1; | |
2629 | } | |
2630 | ||
16663a87 HMH |
2631 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
2632 | { | |
2633 | int interval; | |
2634 | ||
2635 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
2636 | return 0; | |
2637 | ||
2638 | if (interval < 0 || interval > 120) | |
2639 | *rc = -EINVAL; | |
2640 | else | |
2641 | fan_watchdog_maxinterval = interval; | |
2642 | ||
2643 | return 1; | |
2644 | } | |
2645 | ||
18ad7996 HMH |
2646 | static int fan_write(char *buf) |
2647 | { | |
2648 | char *cmd; | |
2649 | int rc = 0; | |
2650 | ||
2651 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 2652 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 2653 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 2654 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 2655 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
2656 | fan_write_cmd_disable(cmd, &rc) || |
2657 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 2658 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
2659 | fan_write_cmd_speed(cmd, &rc)) |
2660 | ) | |
2661 | rc = -EINVAL; | |
16663a87 HMH |
2662 | else if (!rc) |
2663 | fan_watchdog_reset(); | |
18ad7996 HMH |
2664 | } |
2665 | ||
2666 | return rc; | |
2667 | } | |
2668 | ||
a5763f22 HMH |
2669 | static struct ibm_struct fan_driver_data = { |
2670 | .name = "fan", | |
2671 | .read = fan_read, | |
2672 | .write = fan_write, | |
2673 | .exit = fan_exit, | |
92641177 | 2674 | .flags.experimental = 1, |
a5763f22 HMH |
2675 | }; |
2676 | ||
56b6aeb0 HMH |
2677 | /**************************************************************************** |
2678 | **************************************************************************** | |
2679 | * | |
2680 | * Infrastructure | |
2681 | * | |
2682 | **************************************************************************** | |
2683 | ****************************************************************************/ | |
2684 | ||
2685 | /* /proc support */ | |
2686 | static struct proc_dir_entry *proc_dir = NULL; | |
16663a87 | 2687 | |
56b6aeb0 | 2688 | /* Subdriver registry */ |
a5763f22 HMH |
2689 | static LIST_HEAD(tpacpi_all_drivers); |
2690 | ||
1da177e4 | 2691 | |
56b6aeb0 HMH |
2692 | /* |
2693 | * Module and infrastructure proble, init and exit handling | |
2694 | */ | |
1da177e4 | 2695 | |
fe08bc4b | 2696 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 2697 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 2698 | { |
a5763f22 | 2699 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 2700 | |
a5763f22 | 2701 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
2702 | } |
2703 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
2704 | ||
a5763f22 | 2705 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
2706 | { |
2707 | int ret; | |
a5763f22 | 2708 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
2709 | struct proc_dir_entry *entry; |
2710 | ||
a5763f22 HMH |
2711 | BUG_ON(ibm == NULL); |
2712 | ||
2713 | INIT_LIST_HEAD(&ibm->all_drivers); | |
2714 | ||
92641177 | 2715 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
2716 | return 0; |
2717 | ||
fe08bc4b HMH |
2718 | dbg_printk(TPACPI_DBG_INIT, |
2719 | "probing for %s\n", ibm->name); | |
2720 | ||
a5763f22 HMH |
2721 | if (iibm->init) { |
2722 | ret = iibm->init(iibm); | |
5fba344c HMH |
2723 | if (ret > 0) |
2724 | return 0; /* probe failed */ | |
2725 | if (ret) | |
1da177e4 | 2726 | return ret; |
a5763f22 | 2727 | |
92641177 | 2728 | ibm->flags.init_called = 1; |
1da177e4 LT |
2729 | } |
2730 | ||
5fba344c HMH |
2731 | if (ibm->hid) { |
2732 | ret = register_tpacpi_subdriver(ibm); | |
2733 | if (ret) | |
2734 | goto err_out; | |
2735 | } | |
2736 | ||
2737 | if (ibm->notify) { | |
2738 | ret = setup_notify(ibm); | |
2739 | if (ret == -ENODEV) { | |
2740 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
2741 | ibm->name); | |
2742 | ret = 0; | |
2743 | goto err_out; | |
2744 | } | |
2745 | if (ret < 0) | |
2746 | goto err_out; | |
2747 | } | |
2748 | ||
fe08bc4b HMH |
2749 | dbg_printk(TPACPI_DBG_INIT, |
2750 | "%s installed\n", ibm->name); | |
2751 | ||
78f81cc4 BD |
2752 | if (ibm->read) { |
2753 | entry = create_proc_entry(ibm->name, | |
2754 | S_IFREG | S_IRUGO | S_IWUSR, | |
2755 | proc_dir); | |
2756 | if (!entry) { | |
2757 | printk(IBM_ERR "unable to create proc entry %s\n", | |
2758 | ibm->name); | |
5fba344c HMH |
2759 | ret = -ENODEV; |
2760 | goto err_out; | |
78f81cc4 BD |
2761 | } |
2762 | entry->owner = THIS_MODULE; | |
2763 | entry->data = ibm; | |
1da177e4 | 2764 | entry->read_proc = &dispatch_read; |
78f81cc4 BD |
2765 | if (ibm->write) |
2766 | entry->write_proc = &dispatch_write; | |
92641177 | 2767 | ibm->flags.proc_created = 1; |
78f81cc4 | 2768 | } |
1da177e4 | 2769 | |
a5763f22 HMH |
2770 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
2771 | ||
1da177e4 | 2772 | return 0; |
5fba344c HMH |
2773 | |
2774 | err_out: | |
fe08bc4b HMH |
2775 | dbg_printk(TPACPI_DBG_INIT, |
2776 | "%s: at error exit path with result %d\n", | |
2777 | ibm->name, ret); | |
2778 | ||
5fba344c HMH |
2779 | ibm_exit(ibm); |
2780 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
2781 | } |
2782 | ||
2783 | static void ibm_exit(struct ibm_struct *ibm) | |
2784 | { | |
fe08bc4b | 2785 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); |
a5763f22 HMH |
2786 | |
2787 | list_del_init(&ibm->all_drivers); | |
2788 | ||
92641177 | 2789 | if (ibm->flags.notify_installed) { |
fe08bc4b HMH |
2790 | dbg_printk(TPACPI_DBG_EXIT, |
2791 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
1da177e4 LT |
2792 | acpi_remove_notify_handler(*ibm->handle, ibm->type, |
2793 | dispatch_notify); | |
92641177 | 2794 | ibm->flags.notify_installed = 0; |
5fba344c | 2795 | } |
1da177e4 | 2796 | |
92641177 | 2797 | if (ibm->flags.proc_created) { |
fe08bc4b HMH |
2798 | dbg_printk(TPACPI_DBG_EXIT, |
2799 | "%s: remove_proc_entry\n", ibm->name); | |
1da177e4 | 2800 | remove_proc_entry(ibm->name, proc_dir); |
92641177 | 2801 | ibm->flags.proc_created = 0; |
5fba344c | 2802 | } |
1da177e4 | 2803 | |
92641177 | 2804 | if (ibm->flags.driver_registered) { |
fe08bc4b HMH |
2805 | dbg_printk(TPACPI_DBG_EXIT, |
2806 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
1da177e4 LT |
2807 | acpi_bus_unregister_driver(ibm->driver); |
2808 | kfree(ibm->driver); | |
5fba344c | 2809 | ibm->driver = NULL; |
92641177 | 2810 | ibm->flags.driver_registered = 0; |
5fba344c HMH |
2811 | } |
2812 | ||
92641177 | 2813 | if (ibm->flags.init_called && ibm->exit) { |
5fba344c | 2814 | ibm->exit(); |
92641177 | 2815 | ibm->flags.init_called = 0; |
1da177e4 | 2816 | } |
a5763f22 HMH |
2817 | |
2818 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
1da177e4 LT |
2819 | } |
2820 | ||
56b6aeb0 HMH |
2821 | /* Probing */ |
2822 | ||
2823 | static char *ibm_thinkpad_ec_found = NULL; | |
2824 | ||
2825 | static char* __init check_dmi_for_ec(void) | |
1da177e4 | 2826 | { |
56b6aeb0 HMH |
2827 | struct dmi_device *dev = NULL; |
2828 | char ec_fw_string[18]; | |
1da177e4 | 2829 | |
56b6aeb0 HMH |
2830 | /* |
2831 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
2832 | * X32 or newer, all Z series; Some models must have an | |
2833 | * up-to-date BIOS or they will not be detected. | |
2834 | * | |
2835 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
2836 | */ | |
2837 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
2838 | if (sscanf(dev->name, | |
2839 | "IBM ThinkPad Embedded Controller -[%17c", | |
2840 | ec_fw_string) == 1) { | |
2841 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
2842 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
2843 | return kstrdup(ec_fw_string, GFP_KERNEL); | |
78f81cc4 | 2844 | } |
1da177e4 | 2845 | } |
56b6aeb0 | 2846 | return NULL; |
1da177e4 LT |
2847 | } |
2848 | ||
5fba344c HMH |
2849 | static int __init probe_for_thinkpad(void) |
2850 | { | |
2851 | int is_thinkpad; | |
2852 | ||
2853 | if (acpi_disabled) | |
2854 | return -ENODEV; | |
2855 | ||
2856 | /* | |
2857 | * Non-ancient models have better DMI tagging, but very old models | |
2858 | * don't. | |
2859 | */ | |
2860 | is_thinkpad = dmi_name_in_vendors("ThinkPad"); | |
2861 | ||
2862 | /* ec is required because many other handles are relative to it */ | |
2863 | IBM_HANDLE_INIT(ec); | |
2864 | if (!ec_handle) { | |
2865 | if (is_thinkpad) | |
2866 | printk(IBM_ERR | |
2867 | "Not yet supported ThinkPad detected!\n"); | |
2868 | return -ENODEV; | |
2869 | } | |
2870 | ||
0dcef77c HMH |
2871 | /* |
2872 | * Risks a regression on very old machines, but reduces potential | |
2873 | * false positives a damn great deal | |
2874 | */ | |
2875 | if (!is_thinkpad) | |
2876 | is_thinkpad = dmi_name_in_vendors("IBM"); | |
2877 | ||
2878 | if (!is_thinkpad && !force_load) | |
2879 | return -ENODEV; | |
2880 | ||
5fba344c HMH |
2881 | return 0; |
2882 | } | |
2883 | ||
2884 | ||
56b6aeb0 | 2885 | /* Module init, exit, parameters */ |
1da177e4 | 2886 | |
a5763f22 HMH |
2887 | static struct ibm_init_struct ibms_init[] __initdata = { |
2888 | { | |
2889 | .init = thinkpad_acpi_driver_init, | |
2890 | .data = &thinkpad_acpi_driver_data, | |
2891 | }, | |
2892 | { | |
2893 | .init = hotkey_init, | |
2894 | .data = &hotkey_driver_data, | |
2895 | }, | |
2896 | { | |
2897 | .init = bluetooth_init, | |
2898 | .data = &bluetooth_driver_data, | |
2899 | }, | |
2900 | { | |
2901 | .init = wan_init, | |
2902 | .data = &wan_driver_data, | |
2903 | }, | |
2904 | { | |
2905 | .init = video_init, | |
2906 | .data = &video_driver_data, | |
2907 | }, | |
2908 | { | |
2909 | .init = light_init, | |
2910 | .data = &light_driver_data, | |
2911 | }, | |
2912 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
2913 | { | |
2914 | .init = dock_init, | |
2915 | .data = &dock_driver_data[0], | |
2916 | }, | |
2917 | { | |
2918 | .data = &dock_driver_data[1], | |
2919 | }, | |
2920 | #endif | |
2921 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
2922 | { | |
2923 | .init = bay_init, | |
2924 | .data = &bay_driver_data, | |
2925 | }, | |
2926 | #endif | |
2927 | { | |
2928 | .init = cmos_init, | |
2929 | .data = &cmos_driver_data, | |
2930 | }, | |
2931 | { | |
2932 | .init = led_init, | |
2933 | .data = &led_driver_data, | |
2934 | }, | |
2935 | { | |
2936 | .init = beep_init, | |
2937 | .data = &beep_driver_data, | |
2938 | }, | |
2939 | { | |
2940 | .init = thermal_init, | |
2941 | .data = &thermal_driver_data, | |
2942 | }, | |
2943 | { | |
2944 | .data = &ecdump_driver_data, | |
2945 | }, | |
2946 | { | |
2947 | .init = brightness_init, | |
2948 | .data = &brightness_driver_data, | |
2949 | }, | |
2950 | { | |
2951 | .data = &volume_driver_data, | |
2952 | }, | |
2953 | { | |
2954 | .init = fan_init, | |
2955 | .data = &fan_driver_data, | |
2956 | }, | |
2957 | }; | |
2958 | ||
3945ac36 | 2959 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
2960 | { |
2961 | unsigned int i; | |
a5763f22 | 2962 | struct ibm_struct *ibm; |
1da177e4 | 2963 | |
a5763f22 HMH |
2964 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
2965 | ibm = ibms_init[i].data; | |
2966 | BUG_ON(ibm == NULL); | |
2967 | ||
2968 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
2969 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 2970 | return -ENOSPC; |
a5763f22 HMH |
2971 | strcpy(ibms_init[i].param, val); |
2972 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
2973 | return 0; |
2974 | } | |
a5763f22 | 2975 | } |
1da177e4 | 2976 | |
1da177e4 LT |
2977 | return -EINVAL; |
2978 | } | |
2979 | ||
56b6aeb0 HMH |
2980 | static int experimental; |
2981 | module_param(experimental, int, 0); | |
2982 | ||
132ce091 HMH |
2983 | static u32 dbg_level; |
2984 | module_param_named(debug, dbg_level, uint, 0); | |
2985 | ||
0dcef77c HMH |
2986 | static int force_load; |
2987 | module_param(force_load, int, 0); | |
2988 | ||
1da177e4 LT |
2989 | #define IBM_PARAM(feature) \ |
2990 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
2991 | ||
78f81cc4 BD |
2992 | IBM_PARAM(hotkey); |
2993 | IBM_PARAM(bluetooth); | |
2994 | IBM_PARAM(video); | |
2995 | IBM_PARAM(light); | |
85998248 | 2996 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
78f81cc4 | 2997 | IBM_PARAM(dock); |
63e5f248 | 2998 | #endif |
85998248 | 2999 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 | 3000 | IBM_PARAM(bay); |
85998248 | 3001 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
78f81cc4 BD |
3002 | IBM_PARAM(cmos); |
3003 | IBM_PARAM(led); | |
3004 | IBM_PARAM(beep); | |
3005 | IBM_PARAM(ecdump); | |
3006 | IBM_PARAM(brightness); | |
3007 | IBM_PARAM(volume); | |
3008 | IBM_PARAM(fan); | |
3009 | ||
1def7115 | 3010 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
3011 | { |
3012 | int ret, i; | |
3013 | ||
5fba344c HMH |
3014 | ret = probe_for_thinkpad(); |
3015 | if (ret) | |
3016 | return ret; | |
1da177e4 | 3017 | |
60eb0b35 | 3018 | ibm_thinkpad_ec_found = check_dmi_for_ec(); |
78f81cc4 BD |
3019 | IBM_HANDLE_INIT(ecrd); |
3020 | IBM_HANDLE_INIT(ecwr); | |
1da177e4 LT |
3021 | |
3022 | proc_dir = proc_mkdir(IBM_DIR, acpi_root_dir); | |
3023 | if (!proc_dir) { | |
3024 | printk(IBM_ERR "unable to create proc dir %s", IBM_DIR); | |
1def7115 | 3025 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
3026 | return -ENODEV; |
3027 | } | |
3028 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 3029 | |
a5763f22 HMH |
3030 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
3031 | ret = ibm_init(&ibms_init[i]); | |
3032 | if (ret >= 0 && *ibms_init[i].param) | |
3033 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 3034 | if (ret < 0) { |
1def7115 | 3035 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
3036 | return ret; |
3037 | } | |
3038 | } | |
3039 | ||
3040 | return 0; | |
3041 | } | |
3042 | ||
1def7115 | 3043 | static void thinkpad_acpi_module_exit(void) |
56b6aeb0 | 3044 | { |
a5763f22 HMH |
3045 | struct ibm_struct *ibm, *itmp; |
3046 | ||
3047 | list_for_each_entry_safe_reverse(ibm, itmp, | |
3048 | &tpacpi_all_drivers, | |
3049 | all_drivers) { | |
3050 | ibm_exit(ibm); | |
3051 | } | |
56b6aeb0 | 3052 | |
a5763f22 | 3053 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); |
56b6aeb0 HMH |
3054 | |
3055 | if (proc_dir) | |
3056 | remove_proc_entry(IBM_DIR, acpi_root_dir); | |
3057 | ||
3058 | if (ibm_thinkpad_ec_found) | |
3059 | kfree(ibm_thinkpad_ec_found); | |
3060 | } | |
3061 | ||
1def7115 HMH |
3062 | module_init(thinkpad_acpi_module_init); |
3063 | module_exit(thinkpad_acpi_module_exit); |