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 | ||
c9bea99c HMH |
276 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
277 | { | |
278 | if (!cmos_handle) | |
279 | return -ENXIO; | |
280 | ||
281 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
282 | return -EIO; | |
283 | ||
284 | return 0; | |
285 | } | |
286 | ||
56b6aeb0 HMH |
287 | /************************************************************************* |
288 | * ACPI device model | |
289 | */ | |
290 | ||
8d376cd6 | 291 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
292 | acpi_handle *handle, acpi_handle parent, |
293 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
294 | { |
295 | int i; | |
296 | acpi_status status; | |
297 | ||
298 | for (i = 0; i < num_paths; i++) { | |
299 | status = acpi_get_handle(parent, paths[i], handle); | |
300 | if (ACPI_SUCCESS(status)) { | |
301 | *path = paths[i]; | |
302 | return; | |
303 | } | |
304 | } | |
305 | ||
306 | *handle = NULL; | |
307 | } | |
308 | ||
8d376cd6 | 309 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
310 | { |
311 | struct ibm_struct *ibm = data; | |
312 | ||
8d376cd6 | 313 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
314 | return; |
315 | ||
8d376cd6 | 316 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
317 | } |
318 | ||
8d376cd6 | 319 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
320 | { |
321 | acpi_status status; | |
322 | int ret; | |
323 | ||
8d376cd6 HMH |
324 | BUG_ON(!ibm->acpi); |
325 | ||
326 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
327 | return 0; |
328 | ||
fe08bc4b HMH |
329 | dbg_printk(TPACPI_DBG_INIT, |
330 | "setting up ACPI notify for %s\n", ibm->name); | |
331 | ||
8d376cd6 | 332 | ret = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
56b6aeb0 HMH |
333 | if (ret < 0) { |
334 | printk(IBM_ERR "%s device not present\n", ibm->name); | |
335 | return -ENODEV; | |
336 | } | |
337 | ||
8d376cd6 HMH |
338 | acpi_driver_data(ibm->acpi->device) = ibm; |
339 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
643f12db HMH |
340 | IBM_ACPI_EVENT_PREFIX, |
341 | ibm->name); | |
56b6aeb0 | 342 | |
8d376cd6 HMH |
343 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
344 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
345 | if (ACPI_FAILURE(status)) { |
346 | if (status == AE_ALREADY_EXISTS) { | |
347 | printk(IBM_NOTICE "another device driver is already handling %s events\n", | |
348 | ibm->name); | |
349 | } else { | |
350 | printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", | |
351 | ibm->name, status); | |
352 | } | |
353 | return -ENODEV; | |
354 | } | |
8d376cd6 | 355 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
356 | return 0; |
357 | } | |
358 | ||
8d376cd6 | 359 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
360 | { |
361 | return 0; | |
362 | } | |
363 | ||
6700121b | 364 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 HMH |
365 | { |
366 | int ret; | |
367 | ||
fe08bc4b HMH |
368 | dbg_printk(TPACPI_DBG_INIT, |
369 | "registering %s as an ACPI driver\n", ibm->name); | |
370 | ||
8d376cd6 HMH |
371 | BUG_ON(!ibm->acpi); |
372 | ||
373 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
374 | if (!ibm->acpi->driver) { | |
5fba344c HMH |
375 | printk(IBM_ERR "kzalloc(ibm->driver) failed\n"); |
376 | return -ENOMEM; | |
56b6aeb0 HMH |
377 | } |
378 | ||
8d376cd6 HMH |
379 | sprintf(ibm->acpi->driver->name, "%s_%s", IBM_NAME, ibm->name); |
380 | ibm->acpi->driver->ids = ibm->acpi->hid; | |
381 | ibm->acpi->driver->ops.add = &tpacpi_device_add; | |
56b6aeb0 | 382 | |
8d376cd6 | 383 | ret = acpi_bus_register_driver(ibm->acpi->driver); |
56b6aeb0 HMH |
384 | if (ret < 0) { |
385 | printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", | |
8d376cd6 HMH |
386 | ibm->acpi->hid, ret); |
387 | kfree(ibm->acpi->driver); | |
388 | ibm->acpi->driver = NULL; | |
5fba344c | 389 | } else if (!ret) |
8d376cd6 | 390 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 HMH |
391 | |
392 | return ret; | |
393 | } | |
394 | ||
395 | ||
396 | /**************************************************************************** | |
397 | **************************************************************************** | |
398 | * | |
399 | * Procfs Helpers | |
400 | * | |
401 | **************************************************************************** | |
402 | ****************************************************************************/ | |
403 | ||
8d376cd6 HMH |
404 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
405 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
406 | { |
407 | struct ibm_struct *ibm = data; | |
408 | int len; | |
409 | ||
410 | if (!ibm || !ibm->read) | |
411 | return -EINVAL; | |
412 | ||
413 | len = ibm->read(page); | |
414 | if (len < 0) | |
415 | return len; | |
416 | ||
417 | if (len <= off + count) | |
418 | *eof = 1; | |
419 | *start = page + off; | |
420 | len -= off; | |
421 | if (len > count) | |
422 | len = count; | |
423 | if (len < 0) | |
424 | len = 0; | |
425 | ||
426 | return len; | |
427 | } | |
428 | ||
8d376cd6 HMH |
429 | static int dispatch_procfs_write(struct file *file, |
430 | const char __user * userbuf, | |
431 | unsigned long count, void *data) | |
56b6aeb0 HMH |
432 | { |
433 | struct ibm_struct *ibm = data; | |
434 | char *kernbuf; | |
435 | int ret; | |
436 | ||
437 | if (!ibm || !ibm->write) | |
438 | return -EINVAL; | |
439 | ||
440 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
441 | if (!kernbuf) | |
442 | return -ENOMEM; | |
1da177e4 | 443 | |
56b6aeb0 HMH |
444 | if (copy_from_user(kernbuf, userbuf, count)) { |
445 | kfree(kernbuf); | |
446 | return -EFAULT; | |
447 | } | |
1da177e4 | 448 | |
56b6aeb0 HMH |
449 | kernbuf[count] = 0; |
450 | strcat(kernbuf, ","); | |
451 | ret = ibm->write(kernbuf); | |
452 | if (ret == 0) | |
453 | ret = count; | |
1da177e4 | 454 | |
56b6aeb0 HMH |
455 | kfree(kernbuf); |
456 | ||
457 | return ret; | |
1da177e4 LT |
458 | } |
459 | ||
460 | static char *next_cmd(char **cmds) | |
461 | { | |
462 | char *start = *cmds; | |
463 | char *end; | |
464 | ||
465 | while ((end = strchr(start, ',')) && end == start) | |
466 | start = end + 1; | |
467 | ||
468 | if (!end) | |
469 | return NULL; | |
470 | ||
471 | *end = 0; | |
472 | *cmds = end + 1; | |
473 | return start; | |
474 | } | |
475 | ||
56b6aeb0 HMH |
476 | |
477 | /**************************************************************************** | |
478 | **************************************************************************** | |
479 | * | |
480 | * Subdrivers | |
481 | * | |
482 | **************************************************************************** | |
483 | ****************************************************************************/ | |
484 | ||
485 | /************************************************************************* | |
142cfc90 | 486 | * thinkpad-acpi init subdriver |
56b6aeb0 HMH |
487 | */ |
488 | ||
a5763f22 | 489 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
490 | { |
491 | printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); | |
492 | printk(IBM_INFO "%s\n", IBM_URL); | |
493 | ||
3945ac36 HMH |
494 | if (ibm_thinkpad_ec_found) |
495 | printk(IBM_INFO "ThinkPad EC firmware %s\n", | |
496 | ibm_thinkpad_ec_found); | |
497 | ||
1da177e4 LT |
498 | return 0; |
499 | } | |
500 | ||
643f12db | 501 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
502 | { |
503 | int len = 0; | |
504 | ||
505 | len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); | |
506 | len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); | |
507 | ||
508 | return len; | |
509 | } | |
510 | ||
a5763f22 HMH |
511 | static struct ibm_struct thinkpad_acpi_driver_data = { |
512 | .name = "driver", | |
513 | .read = thinkpad_acpi_driver_read, | |
514 | }; | |
515 | ||
56b6aeb0 HMH |
516 | /************************************************************************* |
517 | * Hotkey subdriver | |
518 | */ | |
519 | ||
78f81cc4 BD |
520 | static int hotkey_orig_status; |
521 | static int hotkey_orig_mask; | |
522 | ||
a5763f22 | 523 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 524 | { |
b86c4722 HMH |
525 | int res; |
526 | ||
fe08bc4b HMH |
527 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
528 | ||
8d376cd6 | 529 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 530 | |
56b6aeb0 | 531 | /* hotkey not supported on 570 */ |
d8fd94d9 | 532 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 533 | |
fe08bc4b | 534 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 535 | str_supported(tp_features.hotkey)); |
fe08bc4b | 536 | |
d8fd94d9 | 537 | if (tp_features.hotkey) { |
56b6aeb0 HMH |
538 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
539 | A30, R30, R31, T20-22, X20-21, X22-24 */ | |
d8fd94d9 HMH |
540 | tp_features.hotkey_mask = |
541 | acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); | |
56b6aeb0 | 542 | |
fe08bc4b | 543 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 544 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 545 | |
b86c4722 HMH |
546 | res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask); |
547 | if (res) | |
548 | return res; | |
56b6aeb0 HMH |
549 | } |
550 | ||
d8fd94d9 | 551 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
552 | } |
553 | ||
554 | static void hotkey_exit(void) | |
555 | { | |
b86c4722 HMH |
556 | int res; |
557 | ||
d8fd94d9 | 558 | if (tp_features.hotkey) { |
fe08bc4b | 559 | dbg_printk(TPACPI_DBG_EXIT, "restoring original hotkey mask\n"); |
b86c4722 HMH |
560 | res = hotkey_set(hotkey_orig_status, hotkey_orig_mask); |
561 | if (res) | |
562 | printk(IBM_ERR "failed to restore hotkey to BIOS defaults\n"); | |
5fba344c | 563 | } |
56b6aeb0 HMH |
564 | } |
565 | ||
566 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
567 | { | |
568 | int hkey; | |
569 | ||
570 | if (acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) | |
8d376cd6 | 571 | acpi_bus_generate_event(ibm->acpi->device, event, hkey); |
56b6aeb0 HMH |
572 | else { |
573 | printk(IBM_ERR "unknown hotkey event %d\n", event); | |
8d376cd6 | 574 | acpi_bus_generate_event(ibm->acpi->device, event, 0); |
56b6aeb0 HMH |
575 | } |
576 | } | |
577 | ||
78f81cc4 | 578 | static int hotkey_get(int *status, int *mask) |
1da177e4 LT |
579 | { |
580 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
b86c4722 | 581 | return -EIO; |
78f81cc4 | 582 | |
d8fd94d9 | 583 | if (tp_features.hotkey_mask) |
78f81cc4 | 584 | if (!acpi_evalf(hkey_handle, mask, "DHKN", "d")) |
b86c4722 | 585 | return -EIO; |
78f81cc4 | 586 | |
b86c4722 | 587 | return 0; |
1da177e4 LT |
588 | } |
589 | ||
78f81cc4 | 590 | static int hotkey_set(int status, int mask) |
1da177e4 LT |
591 | { |
592 | int i; | |
593 | ||
594 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
b86c4722 | 595 | return -EIO; |
1da177e4 | 596 | |
d8fd94d9 | 597 | if (tp_features.hotkey_mask) |
78f81cc4 BD |
598 | for (i = 0; i < 32; i++) { |
599 | int bit = ((1 << i) & mask) != 0; | |
600 | if (!acpi_evalf(hkey_handle, | |
601 | NULL, "MHKM", "vdd", i + 1, bit)) | |
b86c4722 | 602 | return -EIO; |
78f81cc4 | 603 | } |
1da177e4 | 604 | |
b86c4722 | 605 | return 0; |
1da177e4 LT |
606 | } |
607 | ||
78f81cc4 | 608 | static int hotkey_read(char *p) |
1da177e4 | 609 | { |
b86c4722 | 610 | int res, status, mask; |
1da177e4 LT |
611 | int len = 0; |
612 | ||
d8fd94d9 | 613 | if (!tp_features.hotkey) { |
78f81cc4 BD |
614 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
615 | return len; | |
616 | } | |
617 | ||
b86c4722 HMH |
618 | res = hotkey_get(&status, &mask); |
619 | if (res) | |
620 | return res; | |
1da177e4 LT |
621 | |
622 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 623 | if (tp_features.hotkey_mask) { |
1da177e4 LT |
624 | len += sprintf(p + len, "mask:\t\t0x%04x\n", mask); |
625 | len += sprintf(p + len, | |
626 | "commands:\tenable, disable, reset, <mask>\n"); | |
627 | } else { | |
628 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
629 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
630 | } | |
631 | ||
632 | return len; | |
633 | } | |
634 | ||
78f81cc4 | 635 | static int hotkey_write(char *buf) |
1da177e4 | 636 | { |
b86c4722 | 637 | int res, status, mask; |
1da177e4 LT |
638 | char *cmd; |
639 | int do_cmd = 0; | |
640 | ||
d8fd94d9 | 641 | if (!tp_features.hotkey) |
1da177e4 LT |
642 | return -ENODEV; |
643 | ||
b86c4722 HMH |
644 | res = hotkey_get(&status, &mask); |
645 | if (res) | |
646 | return res; | |
78f81cc4 | 647 | |
1da177e4 LT |
648 | while ((cmd = next_cmd(&buf))) { |
649 | if (strlencmp(cmd, "enable") == 0) { | |
650 | status = 1; | |
651 | } else if (strlencmp(cmd, "disable") == 0) { | |
652 | status = 0; | |
653 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
654 | status = hotkey_orig_status; |
655 | mask = hotkey_orig_mask; | |
1da177e4 LT |
656 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
657 | /* mask set */ | |
658 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
659 | /* mask set */ | |
660 | } else | |
661 | return -EINVAL; | |
662 | do_cmd = 1; | |
663 | } | |
664 | ||
b86c4722 HMH |
665 | if (do_cmd) { |
666 | res = hotkey_set(status, mask); | |
667 | if (res) | |
668 | return res; | |
669 | } | |
1da177e4 LT |
670 | |
671 | return 0; | |
78f81cc4 | 672 | } |
1da177e4 | 673 | |
8d376cd6 HMH |
674 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
675 | .hid = IBM_HKEY_HID, | |
676 | .notify = hotkey_notify, | |
677 | .handle = &hkey_handle, | |
678 | .type = ACPI_DEVICE_NOTIFY, | |
679 | }; | |
680 | ||
a5763f22 HMH |
681 | static struct ibm_struct hotkey_driver_data = { |
682 | .name = "hotkey", | |
a5763f22 HMH |
683 | .read = hotkey_read, |
684 | .write = hotkey_write, | |
685 | .exit = hotkey_exit, | |
8d376cd6 | 686 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
687 | }; |
688 | ||
56b6aeb0 HMH |
689 | /************************************************************************* |
690 | * Bluetooth subdriver | |
691 | */ | |
1da177e4 | 692 | |
a5763f22 | 693 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 694 | { |
d6fdd1e9 HMH |
695 | int status = 0; |
696 | ||
fe08bc4b HMH |
697 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
698 | ||
8d376cd6 | 699 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 700 | |
78f81cc4 BD |
701 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
702 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 703 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
704 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
705 | ||
706 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
707 | str_supported(tp_features.bluetooth), | |
708 | status); | |
709 | ||
710 | if (tp_features.bluetooth && | |
711 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
712 | /* no bluetooth hardware present in system */ | |
713 | tp_features.bluetooth = 0; | |
714 | dbg_printk(TPACPI_DBG_INIT, | |
715 | "bluetooth hardware not installed\n"); | |
716 | } | |
fe08bc4b | 717 | |
d8fd94d9 | 718 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
719 | } |
720 | ||
d6fdd1e9 | 721 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
722 | { |
723 | int status; | |
724 | ||
d6fdd1e9 HMH |
725 | if (!tp_features.bluetooth) |
726 | return -ENODEV; | |
1da177e4 | 727 | |
d6fdd1e9 HMH |
728 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
729 | return -EIO; | |
730 | ||
731 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
732 | } | |
733 | ||
734 | static int bluetooth_set_radiosw(int radio_on) | |
735 | { | |
736 | int status; | |
737 | ||
738 | if (!tp_features.bluetooth) | |
739 | return -ENODEV; | |
740 | ||
741 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
742 | return -EIO; | |
743 | if (radio_on) | |
744 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
745 | else | |
746 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
747 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
748 | return -EIO; | |
749 | ||
750 | return 0; | |
1da177e4 LT |
751 | } |
752 | ||
78f81cc4 | 753 | static int bluetooth_read(char *p) |
1da177e4 LT |
754 | { |
755 | int len = 0; | |
d6fdd1e9 | 756 | int status = bluetooth_get_radiosw(); |
1da177e4 | 757 | |
d8fd94d9 | 758 | if (!tp_features.bluetooth) |
1da177e4 | 759 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 760 | else { |
d6fdd1e9 HMH |
761 | len += sprintf(p + len, "status:\t\t%s\n", |
762 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
763 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
764 | } | |
765 | ||
766 | return len; | |
767 | } | |
768 | ||
78f81cc4 | 769 | static int bluetooth_write(char *buf) |
1da177e4 | 770 | { |
1da177e4 | 771 | char *cmd; |
1da177e4 | 772 | |
d8fd94d9 | 773 | if (!tp_features.bluetooth) |
78f81cc4 | 774 | return -ENODEV; |
1da177e4 LT |
775 | |
776 | while ((cmd = next_cmd(&buf))) { | |
777 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 778 | bluetooth_set_radiosw(1); |
1da177e4 | 779 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 780 | bluetooth_set_radiosw(0); |
1da177e4 LT |
781 | } else |
782 | return -EINVAL; | |
1da177e4 LT |
783 | } |
784 | ||
1da177e4 LT |
785 | return 0; |
786 | } | |
787 | ||
a5763f22 HMH |
788 | static struct ibm_struct bluetooth_driver_data = { |
789 | .name = "bluetooth", | |
790 | .read = bluetooth_read, | |
791 | .write = bluetooth_write, | |
792 | }; | |
793 | ||
56b6aeb0 HMH |
794 | /************************************************************************* |
795 | * Wan subdriver | |
796 | */ | |
797 | ||
a5763f22 | 798 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 799 | { |
d6fdd1e9 HMH |
800 | int status = 0; |
801 | ||
fe08bc4b HMH |
802 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
803 | ||
8d376cd6 | 804 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 805 | |
d8fd94d9 | 806 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
807 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
808 | ||
809 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
810 | str_supported(tp_features.wan), | |
811 | status); | |
812 | ||
813 | if (tp_features.wan && | |
814 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
815 | /* no wan hardware present in system */ | |
816 | tp_features.wan = 0; | |
817 | dbg_printk(TPACPI_DBG_INIT, | |
818 | "wan hardware not installed\n"); | |
819 | } | |
fe08bc4b | 820 | |
d8fd94d9 | 821 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
822 | } |
823 | ||
d6fdd1e9 | 824 | static int wan_get_radiosw(void) |
42adb53c JF |
825 | { |
826 | int status; | |
827 | ||
d6fdd1e9 HMH |
828 | if (!tp_features.wan) |
829 | return -ENODEV; | |
42adb53c | 830 | |
d6fdd1e9 HMH |
831 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
832 | return -EIO; | |
833 | ||
834 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
835 | } | |
836 | ||
837 | static int wan_set_radiosw(int radio_on) | |
838 | { | |
839 | int status; | |
840 | ||
841 | if (!tp_features.wan) | |
842 | return -ENODEV; | |
843 | ||
844 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
845 | return -EIO; | |
846 | if (radio_on) | |
847 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
848 | else | |
849 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
850 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
851 | return -EIO; | |
852 | ||
853 | return 0; | |
42adb53c JF |
854 | } |
855 | ||
856 | static int wan_read(char *p) | |
857 | { | |
858 | int len = 0; | |
d6fdd1e9 | 859 | int status = wan_get_radiosw(); |
42adb53c | 860 | |
d8fd94d9 | 861 | if (!tp_features.wan) |
42adb53c | 862 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 863 | else { |
d6fdd1e9 HMH |
864 | len += sprintf(p + len, "status:\t\t%s\n", |
865 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
866 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
867 | } | |
868 | ||
869 | return len; | |
870 | } | |
871 | ||
872 | static int wan_write(char *buf) | |
873 | { | |
42adb53c | 874 | char *cmd; |
42adb53c | 875 | |
d8fd94d9 | 876 | if (!tp_features.wan) |
42adb53c JF |
877 | return -ENODEV; |
878 | ||
879 | while ((cmd = next_cmd(&buf))) { | |
880 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 881 | wan_set_radiosw(1); |
42adb53c | 882 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 883 | wan_set_radiosw(0); |
42adb53c JF |
884 | } else |
885 | return -EINVAL; | |
42adb53c JF |
886 | } |
887 | ||
42adb53c JF |
888 | return 0; |
889 | } | |
890 | ||
a5763f22 HMH |
891 | static struct ibm_struct wan_driver_data = { |
892 | .name = "wan", | |
893 | .read = wan_read, | |
894 | .write = wan_write, | |
92641177 | 895 | .flags.experimental = 1, |
a5763f22 HMH |
896 | }; |
897 | ||
56b6aeb0 HMH |
898 | /************************************************************************* |
899 | * Video subdriver | |
900 | */ | |
901 | ||
9a8e1738 HMH |
902 | static enum video_access_mode video_supported; |
903 | static int video_orig_autosw; | |
78f81cc4 | 904 | |
56b6aeb0 HMH |
905 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
906 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
907 | "\\_SB.PCI0.VID0", /* 770e */ | |
908 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
909 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
910 | ); /* R30, R31 */ | |
911 | ||
912 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
913 | ||
a5763f22 | 914 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 915 | { |
78f81cc4 BD |
916 | int ivga; |
917 | ||
fe08bc4b HMH |
918 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
919 | ||
8d376cd6 HMH |
920 | IBM_ACPIHANDLE_INIT(vid); |
921 | IBM_ACPIHANDLE_INIT(vid2); | |
5fba344c | 922 | |
78f81cc4 BD |
923 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
924 | /* G41, assume IVGA doesn't change */ | |
925 | vid_handle = vid2_handle; | |
926 | ||
927 | if (!vid_handle) | |
928 | /* video switching not supported on R30, R31 */ | |
efa27145 | 929 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
930 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
931 | /* 570 */ | |
efa27145 | 932 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
933 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
934 | /* 600e/x, 770e, 770x */ | |
efa27145 | 935 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
936 | else |
937 | /* all others */ | |
efa27145 | 938 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 939 | |
fe08bc4b HMH |
940 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
941 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
942 | video_supported); | |
943 | ||
5fba344c | 944 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
945 | } |
946 | ||
56b6aeb0 HMH |
947 | static void video_exit(void) |
948 | { | |
83f34724 HMH |
949 | dbg_printk(TPACPI_DBG_EXIT, |
950 | "restoring original video autoswitch mode\n"); | |
951 | if (video_autosw_set(video_orig_autosw)) | |
952 | printk(IBM_ERR "error while trying to restore original " | |
953 | "video autoswitch mode\n"); | |
56b6aeb0 HMH |
954 | } |
955 | ||
83f34724 | 956 | static int video_outputsw_get(void) |
1da177e4 LT |
957 | { |
958 | int status = 0; | |
959 | int i; | |
960 | ||
83f34724 HMH |
961 | switch (video_supported) { |
962 | case TPACPI_VIDEO_570: | |
963 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
964 | TP_ACPI_VIDEO_570_PHSCMD)) | |
965 | return -EIO; | |
966 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
967 | break; | |
968 | case TPACPI_VIDEO_770: | |
969 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
970 | return -EIO; | |
971 | if (i) | |
972 | status |= TP_ACPI_VIDEO_S_LCD; | |
973 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
974 | return -EIO; | |
975 | if (i) | |
976 | status |= TP_ACPI_VIDEO_S_CRT; | |
977 | break; | |
978 | case TPACPI_VIDEO_NEW: | |
979 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
980 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
981 | return -EIO; | |
982 | if (i) | |
983 | status |= TP_ACPI_VIDEO_S_CRT; | |
984 | ||
985 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
986 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
987 | return -EIO; | |
988 | if (i) | |
989 | status |= TP_ACPI_VIDEO_S_LCD; | |
990 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
991 | return -EIO; | |
992 | if (i) | |
993 | status |= TP_ACPI_VIDEO_S_DVI; | |
994 | break; | |
995 | default: | |
996 | return -ENOSYS; | |
78f81cc4 BD |
997 | } |
998 | ||
999 | return status; | |
1000 | } | |
1da177e4 | 1001 | |
83f34724 | 1002 | static int video_outputsw_set(int status) |
78f81cc4 | 1003 | { |
83f34724 HMH |
1004 | int autosw; |
1005 | int res = 0; | |
1006 | ||
1007 | switch (video_supported) { | |
1008 | case TPACPI_VIDEO_570: | |
1009 | res = acpi_evalf(NULL, NULL, | |
1010 | "\\_SB.PHS2", "vdd", | |
1011 | TP_ACPI_VIDEO_570_PHS2CMD, | |
1012 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
1013 | break; | |
1014 | case TPACPI_VIDEO_770: | |
1015 | autosw = video_autosw_get(); | |
1016 | if (autosw < 0) | |
1017 | return autosw; | |
1da177e4 | 1018 | |
83f34724 HMH |
1019 | res = video_autosw_set(1); |
1020 | if (res) | |
1021 | return res; | |
1022 | res = acpi_evalf(vid_handle, NULL, | |
1023 | "ASWT", "vdd", status * 0x100, 0); | |
1024 | if (!autosw && video_autosw_set(autosw)) { | |
1025 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1026 | return -EIO; | |
1027 | } | |
1028 | break; | |
1029 | case TPACPI_VIDEO_NEW: | |
1030 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
1031 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
1032 | break; | |
1033 | default: | |
1034 | return -ENOSYS; | |
1035 | } | |
1da177e4 | 1036 | |
83f34724 | 1037 | return (res)? 0 : -EIO; |
1da177e4 LT |
1038 | } |
1039 | ||
83f34724 | 1040 | static int video_autosw_get(void) |
78f81cc4 | 1041 | { |
83f34724 | 1042 | int autosw = 0; |
78f81cc4 | 1043 | |
83f34724 HMH |
1044 | switch (video_supported) { |
1045 | case TPACPI_VIDEO_570: | |
1046 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
1047 | return -EIO; | |
1048 | break; | |
1049 | case TPACPI_VIDEO_770: | |
1050 | case TPACPI_VIDEO_NEW: | |
1051 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
1052 | return -EIO; | |
1053 | break; | |
1054 | default: | |
1055 | return -ENOSYS; | |
1056 | } | |
78f81cc4 | 1057 | |
83f34724 | 1058 | return autosw & 1; |
78f81cc4 BD |
1059 | } |
1060 | ||
83f34724 | 1061 | static int video_autosw_set(int enable) |
78f81cc4 | 1062 | { |
83f34724 HMH |
1063 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
1064 | return -EIO; | |
1065 | return 0; | |
78f81cc4 BD |
1066 | } |
1067 | ||
83f34724 | 1068 | static int video_outputsw_cycle(void) |
78f81cc4 | 1069 | { |
83f34724 HMH |
1070 | int autosw = video_autosw_get(); |
1071 | int res; | |
78f81cc4 | 1072 | |
83f34724 HMH |
1073 | if (autosw < 0) |
1074 | return autosw; | |
78f81cc4 | 1075 | |
83f34724 HMH |
1076 | switch (video_supported) { |
1077 | case TPACPI_VIDEO_570: | |
1078 | res = video_autosw_set(1); | |
1079 | if (res) | |
1080 | return res; | |
1081 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
1082 | break; | |
1083 | case TPACPI_VIDEO_770: | |
1084 | case TPACPI_VIDEO_NEW: | |
1085 | res = video_autosw_set(1); | |
1086 | if (res) | |
1087 | return res; | |
1088 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
1089 | break; | |
1090 | default: | |
1091 | return -ENOSYS; | |
1092 | } | |
1093 | if (!autosw && video_autosw_set(autosw)) { | |
1094 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1095 | return -EIO; | |
78f81cc4 BD |
1096 | } |
1097 | ||
83f34724 HMH |
1098 | return (res)? 0 : -EIO; |
1099 | } | |
1100 | ||
1101 | static int video_expand_toggle(void) | |
1102 | { | |
1103 | switch (video_supported) { | |
1104 | case TPACPI_VIDEO_570: | |
1105 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
1106 | 0 : -EIO; | |
1107 | case TPACPI_VIDEO_770: | |
1108 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
1109 | 0 : -EIO; | |
1110 | case TPACPI_VIDEO_NEW: | |
1111 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
1112 | 0 : -EIO; | |
1113 | default: | |
1114 | return -ENOSYS; | |
1115 | } | |
1116 | /* not reached */ | |
78f81cc4 BD |
1117 | } |
1118 | ||
56b6aeb0 HMH |
1119 | static int video_read(char *p) |
1120 | { | |
83f34724 | 1121 | int status, autosw; |
56b6aeb0 HMH |
1122 | int len = 0; |
1123 | ||
83f34724 | 1124 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
1125 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1126 | return len; | |
1127 | } | |
1128 | ||
83f34724 HMH |
1129 | status = video_outputsw_get(); |
1130 | if (status < 0) | |
1131 | return status; | |
1132 | ||
1133 | autosw = video_autosw_get(); | |
1134 | if (autosw < 0) | |
1135 | return autosw; | |
1136 | ||
56b6aeb0 HMH |
1137 | len += sprintf(p + len, "status:\t\tsupported\n"); |
1138 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
1139 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 1140 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1141 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
1142 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
1143 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
1144 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 1145 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1146 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
1147 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
1148 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
1149 | ||
1150 | return len; | |
1151 | } | |
1152 | ||
78f81cc4 | 1153 | static int video_write(char *buf) |
1da177e4 LT |
1154 | { |
1155 | char *cmd; | |
1156 | int enable, disable, status; | |
83f34724 | 1157 | int res; |
1da177e4 | 1158 | |
83f34724 | 1159 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
1160 | return -ENODEV; |
1161 | ||
83f34724 HMH |
1162 | enable = 0; |
1163 | disable = 0; | |
1da177e4 LT |
1164 | |
1165 | while ((cmd = next_cmd(&buf))) { | |
1166 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 1167 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 1168 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 1169 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 1170 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 1171 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 1172 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 1173 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 1174 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1175 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 1176 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 1177 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1178 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 1179 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 1180 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
1181 | res = video_autosw_set(1); |
1182 | if (res) | |
1183 | return res; | |
1da177e4 | 1184 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
1185 | res = video_autosw_set(0); |
1186 | if (res) | |
1187 | return res; | |
1da177e4 | 1188 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
1189 | res = video_outputsw_cycle(); |
1190 | if (res) | |
1191 | return res; | |
1da177e4 | 1192 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
1193 | res = video_expand_toggle(); |
1194 | if (res) | |
1195 | return res; | |
1da177e4 LT |
1196 | } else |
1197 | return -EINVAL; | |
1198 | } | |
1199 | ||
1200 | if (enable || disable) { | |
83f34724 HMH |
1201 | status = video_outputsw_get(); |
1202 | if (status < 0) | |
1203 | return status; | |
1204 | res = video_outputsw_set((status & ~disable) | enable); | |
1205 | if (res) | |
1206 | return res; | |
1da177e4 LT |
1207 | } |
1208 | ||
1209 | return 0; | |
1210 | } | |
1211 | ||
a5763f22 HMH |
1212 | static struct ibm_struct video_driver_data = { |
1213 | .name = "video", | |
1214 | .read = video_read, | |
1215 | .write = video_write, | |
1216 | .exit = video_exit, | |
1217 | }; | |
1218 | ||
56b6aeb0 HMH |
1219 | /************************************************************************* |
1220 | * Light (thinklight) subdriver | |
1221 | */ | |
1da177e4 | 1222 | |
56b6aeb0 HMH |
1223 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
1224 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
1225 | ||
a5763f22 | 1226 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 1227 | { |
fe08bc4b HMH |
1228 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
1229 | ||
8d376cd6 HMH |
1230 | IBM_ACPIHANDLE_INIT(ledb); |
1231 | IBM_ACPIHANDLE_INIT(lght); | |
1232 | IBM_ACPIHANDLE_INIT(cmos); | |
5fba344c | 1233 | |
78f81cc4 | 1234 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 1235 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 1236 | |
d8fd94d9 | 1237 | if (tp_features.light) |
78f81cc4 BD |
1238 | /* light status not supported on |
1239 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
1240 | tp_features.light_status = |
1241 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 1242 | |
fe08bc4b | 1243 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 1244 | str_supported(tp_features.light)); |
fe08bc4b | 1245 | |
d8fd94d9 | 1246 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
1247 | } |
1248 | ||
78f81cc4 | 1249 | static int light_read(char *p) |
1da177e4 LT |
1250 | { |
1251 | int len = 0; | |
1252 | int status = 0; | |
1253 | ||
d8fd94d9 | 1254 | if (!tp_features.light) { |
78f81cc4 | 1255 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 1256 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
1257 | len += sprintf(p + len, "status:\t\tunknown\n"); |
1258 | len += sprintf(p + len, "commands:\ton, off\n"); | |
1259 | } else { | |
1da177e4 LT |
1260 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
1261 | return -EIO; | |
1262 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
1263 | len += sprintf(p + len, "commands:\ton, off\n"); |
1264 | } | |
1da177e4 LT |
1265 | |
1266 | return len; | |
1267 | } | |
1268 | ||
78f81cc4 | 1269 | static int light_write(char *buf) |
1da177e4 LT |
1270 | { |
1271 | int cmos_cmd, lght_cmd; | |
1272 | char *cmd; | |
1273 | int success; | |
78f81cc4 | 1274 | |
d8fd94d9 | 1275 | if (!tp_features.light) |
78f81cc4 BD |
1276 | return -ENODEV; |
1277 | ||
1da177e4 LT |
1278 | while ((cmd = next_cmd(&buf))) { |
1279 | if (strlencmp(cmd, "on") == 0) { | |
1280 | cmos_cmd = 0x0c; | |
1281 | lght_cmd = 1; | |
1282 | } else if (strlencmp(cmd, "off") == 0) { | |
1283 | cmos_cmd = 0x0d; | |
1284 | lght_cmd = 0; | |
1285 | } else | |
1286 | return -EINVAL; | |
78f81cc4 | 1287 | |
1da177e4 | 1288 | success = cmos_handle ? |
78f81cc4 BD |
1289 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
1290 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
1291 | if (!success) |
1292 | return -EIO; | |
1293 | } | |
1294 | ||
1295 | return 0; | |
1296 | } | |
1297 | ||
a5763f22 HMH |
1298 | static struct ibm_struct light_driver_data = { |
1299 | .name = "light", | |
1300 | .read = light_read, | |
1301 | .write = light_write, | |
1302 | }; | |
1303 | ||
56b6aeb0 HMH |
1304 | /************************************************************************* |
1305 | * Dock subdriver | |
1306 | */ | |
1da177e4 | 1307 | |
85998248 | 1308 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 HMH |
1309 | |
1310 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ | |
1311 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
1312 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
1313 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
1314 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
1315 | ||
5fba344c HMH |
1316 | /* don't list other alternatives as we install a notify handler on the 570 */ |
1317 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
1318 | ||
1da177e4 LT |
1319 | #define dock_docked() (_sta(dock_handle) & 1) |
1320 | ||
a5763f22 | 1321 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 1322 | { |
fe08bc4b HMH |
1323 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
1324 | ||
8d376cd6 HMH |
1325 | IBM_ACPIHANDLE_INIT(dock); |
1326 | IBM_ACPIHANDLE_INIT(pci); | |
5fba344c | 1327 | |
fe08bc4b HMH |
1328 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
1329 | str_supported(dock_handle != NULL)); | |
1330 | ||
5fba344c HMH |
1331 | return (dock_handle)? 0 : 1; |
1332 | } | |
1333 | ||
56b6aeb0 HMH |
1334 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
1335 | { | |
1336 | int docked = dock_docked(); | |
8d376cd6 | 1337 | int pci = ibm->acpi->hid && strstr(ibm->acpi->hid, IBM_PCI_HID); |
56b6aeb0 HMH |
1338 | |
1339 | if (event == 1 && !pci) /* 570 */ | |
8d376cd6 | 1340 | acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */ |
56b6aeb0 | 1341 | else if (event == 1 && pci) /* 570 */ |
8d376cd6 | 1342 | acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */ |
56b6aeb0 | 1343 | else if (event == 3 && docked) |
8d376cd6 | 1344 | acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */ |
56b6aeb0 | 1345 | else if (event == 3 && !docked) |
8d376cd6 | 1346 | acpi_bus_generate_event(ibm->acpi->device, event, 2); /* undock */ |
56b6aeb0 | 1347 | else if (event == 0 && docked) |
8d376cd6 | 1348 | acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */ |
56b6aeb0 HMH |
1349 | else { |
1350 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
1351 | event, _sta(dock_handle)); | |
8d376cd6 | 1352 | acpi_bus_generate_event(ibm->acpi->device, event, 0); /* unknown */ |
56b6aeb0 HMH |
1353 | } |
1354 | } | |
1355 | ||
78f81cc4 | 1356 | static int dock_read(char *p) |
1da177e4 LT |
1357 | { |
1358 | int len = 0; | |
1359 | int docked = dock_docked(); | |
1360 | ||
1361 | if (!dock_handle) | |
1362 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1363 | else if (!docked) | |
1364 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
1365 | else { | |
1366 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
1367 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
1368 | } | |
1369 | ||
1370 | return len; | |
1371 | } | |
1372 | ||
78f81cc4 | 1373 | static int dock_write(char *buf) |
1da177e4 LT |
1374 | { |
1375 | char *cmd; | |
1376 | ||
1377 | if (!dock_docked()) | |
78f81cc4 | 1378 | return -ENODEV; |
1da177e4 LT |
1379 | |
1380 | while ((cmd = next_cmd(&buf))) { | |
1381 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
1382 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
1383 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
1384 | return -EIO; |
1385 | } else if (strlencmp(cmd, "dock") == 0) { | |
1386 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
1387 | return -EIO; | |
1388 | } else | |
1389 | return -EINVAL; | |
1da177e4 | 1390 | } |
56b6aeb0 HMH |
1391 | |
1392 | return 0; | |
1da177e4 | 1393 | } |
56b6aeb0 | 1394 | |
8d376cd6 | 1395 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
a5763f22 | 1396 | { |
a5763f22 HMH |
1397 | .notify = dock_notify, |
1398 | .handle = &dock_handle, | |
1399 | .type = ACPI_SYSTEM_NOTIFY, | |
1400 | }, | |
1401 | { | |
a5763f22 HMH |
1402 | .hid = IBM_PCI_HID, |
1403 | .notify = dock_notify, | |
1404 | .handle = &pci_handle, | |
1405 | .type = ACPI_SYSTEM_NOTIFY, | |
1406 | }, | |
1407 | }; | |
1408 | ||
8d376cd6 HMH |
1409 | static struct ibm_struct dock_driver_data[2] = { |
1410 | { | |
1411 | .name = "dock", | |
1412 | .read = dock_read, | |
1413 | .write = dock_write, | |
1414 | .acpi = &ibm_dock_acpidriver[0], | |
1415 | }, | |
1416 | { | |
1417 | .name = "dock", | |
1418 | .acpi = &ibm_dock_acpidriver[1], | |
1419 | }, | |
1420 | }; | |
1421 | ||
85998248 | 1422 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
1423 | |
1424 | /************************************************************************* | |
1425 | * Bay subdriver | |
1426 | */ | |
1da177e4 | 1427 | |
85998248 | 1428 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
56b6aeb0 HMH |
1429 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
1430 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
1431 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
1432 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
1433 | ); /* A21e, R30, R31 */ | |
1434 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
1435 | "_EJ0", /* all others */ | |
1436 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
1437 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
1438 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
1439 | ); /* all others */ | |
1440 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
1441 | "_EJ0", /* 770x */ | |
1442 | ); /* all others */ | |
1443 | ||
a5763f22 | 1444 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 1445 | { |
fe08bc4b HMH |
1446 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
1447 | ||
8d376cd6 | 1448 | IBM_ACPIHANDLE_INIT(bay); |
5fba344c | 1449 | if (bay_handle) |
8d376cd6 HMH |
1450 | IBM_ACPIHANDLE_INIT(bay_ej); |
1451 | IBM_ACPIHANDLE_INIT(bay2); | |
5fba344c | 1452 | if (bay2_handle) |
8d376cd6 | 1453 | IBM_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 1454 | |
d8fd94d9 HMH |
1455 | tp_features.bay_status = bay_handle && |
1456 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
1457 | tp_features.bay_status2 = bay2_handle && | |
1458 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 1459 | |
d8fd94d9 HMH |
1460 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
1461 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
1462 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
1463 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 1464 | |
fe08bc4b HMH |
1465 | vdbg_printk(TPACPI_DBG_INIT, |
1466 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
1467 | str_supported(tp_features.bay_status), |
1468 | str_supported(tp_features.bay_eject), | |
1469 | str_supported(tp_features.bay_status2), | |
1470 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 1471 | |
d8fd94d9 HMH |
1472 | return (tp_features.bay_status || tp_features.bay_eject || |
1473 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
1474 | } |
1475 | ||
56b6aeb0 HMH |
1476 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
1477 | { | |
8d376cd6 | 1478 | acpi_bus_generate_event(ibm->acpi->device, event, 0); |
56b6aeb0 HMH |
1479 | } |
1480 | ||
78f81cc4 BD |
1481 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
1482 | ||
1483 | static int bay_read(char *p) | |
1da177e4 LT |
1484 | { |
1485 | int len = 0; | |
78f81cc4 BD |
1486 | int occupied = bay_occupied(bay); |
1487 | int occupied2 = bay_occupied(bay2); | |
1488 | int eject, eject2; | |
1489 | ||
d8fd94d9 HMH |
1490 | len += sprintf(p + len, "status:\t\t%s\n", |
1491 | tp_features.bay_status ? | |
1492 | (occupied ? "occupied" : "unoccupied") : | |
1493 | "not supported"); | |
1494 | if (tp_features.bay_status2) | |
78f81cc4 BD |
1495 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
1496 | "occupied" : "unoccupied"); | |
1497 | ||
d8fd94d9 HMH |
1498 | eject = tp_features.bay_eject && occupied; |
1499 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
1500 | |
1501 | if (eject && eject2) | |
1502 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
1503 | else if (eject) | |
1da177e4 | 1504 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
1505 | else if (eject2) |
1506 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
1507 | |
1508 | return len; | |
1509 | } | |
1510 | ||
78f81cc4 | 1511 | static int bay_write(char *buf) |
1da177e4 LT |
1512 | { |
1513 | char *cmd; | |
1514 | ||
d8fd94d9 | 1515 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
1516 | return -ENODEV; |
1517 | ||
1da177e4 | 1518 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 1519 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
1520 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
1521 | return -EIO; | |
d8fd94d9 | 1522 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
1523 | strlencmp(cmd, "eject2") == 0) { |
1524 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
1525 | return -EIO; |
1526 | } else | |
1527 | return -EINVAL; | |
1528 | } | |
1529 | ||
1530 | return 0; | |
78f81cc4 | 1531 | } |
a5763f22 | 1532 | |
8d376cd6 HMH |
1533 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
1534 | .notify = bay_notify, | |
1535 | .handle = &bay_handle, | |
1536 | .type = ACPI_SYSTEM_NOTIFY, | |
1537 | }; | |
1538 | ||
a5763f22 HMH |
1539 | static struct ibm_struct bay_driver_data = { |
1540 | .name = "bay", | |
1541 | .read = bay_read, | |
1542 | .write = bay_write, | |
8d376cd6 | 1543 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
1544 | }; |
1545 | ||
85998248 | 1546 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 1547 | |
56b6aeb0 HMH |
1548 | /************************************************************************* |
1549 | * CMOS subdriver | |
1550 | */ | |
1551 | ||
a5763f22 | 1552 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 1553 | { |
fe08bc4b HMH |
1554 | vdbg_printk(TPACPI_DBG_INIT, |
1555 | "initializing cmos commands subdriver\n"); | |
1556 | ||
8d376cd6 | 1557 | IBM_ACPIHANDLE_INIT(cmos); |
5fba344c | 1558 | |
fe08bc4b HMH |
1559 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
1560 | str_supported(cmos_handle != NULL)); | |
5fba344c HMH |
1561 | return (cmos_handle)? 0 : 1; |
1562 | } | |
1563 | ||
78f81cc4 | 1564 | static int cmos_read(char *p) |
1da177e4 LT |
1565 | { |
1566 | int len = 0; | |
1567 | ||
78f81cc4 BD |
1568 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1569 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
1570 | if (!cmos_handle) |
1571 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1572 | else { | |
1573 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 1574 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
1575 | } |
1576 | ||
1577 | return len; | |
1578 | } | |
1579 | ||
78f81cc4 | 1580 | static int cmos_write(char *buf) |
1da177e4 LT |
1581 | { |
1582 | char *cmd; | |
c9bea99c | 1583 | int cmos_cmd, res; |
1da177e4 LT |
1584 | |
1585 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
1586 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
1587 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
1588 | /* cmos_cmd set */ |
1589 | } else | |
1590 | return -EINVAL; | |
1591 | ||
c9bea99c HMH |
1592 | res = issue_thinkpad_cmos_command(cmos_cmd); |
1593 | if (res) | |
1594 | return res; | |
1da177e4 LT |
1595 | } |
1596 | ||
1597 | return 0; | |
78f81cc4 BD |
1598 | } |
1599 | ||
a5763f22 HMH |
1600 | static struct ibm_struct cmos_driver_data = { |
1601 | .name = "cmos", | |
1602 | .read = cmos_read, | |
1603 | .write = cmos_write, | |
1604 | }; | |
56b6aeb0 HMH |
1605 | |
1606 | /************************************************************************* | |
1607 | * LED subdriver | |
1608 | */ | |
1609 | ||
9a8e1738 | 1610 | static enum led_access_mode led_supported; |
78f81cc4 | 1611 | |
56b6aeb0 HMH |
1612 | IBM_HANDLE(led, ec, "SLED", /* 570 */ |
1613 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
1614 | "LED", /* all others */ | |
1615 | ); /* R30, R31 */ | |
1616 | ||
a5763f22 | 1617 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 1618 | { |
fe08bc4b HMH |
1619 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
1620 | ||
8d376cd6 | 1621 | IBM_ACPIHANDLE_INIT(led); |
5fba344c | 1622 | |
78f81cc4 BD |
1623 | if (!led_handle) |
1624 | /* led not supported on R30, R31 */ | |
efa27145 | 1625 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
1626 | else if (strlencmp(led_path, "SLED") == 0) |
1627 | /* 570 */ | |
efa27145 | 1628 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
1629 | else if (strlencmp(led_path, "SYSL") == 0) |
1630 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 1631 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
1632 | else |
1633 | /* all others */ | |
efa27145 | 1634 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 1635 | |
fe08bc4b HMH |
1636 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
1637 | str_supported(led_supported), led_supported); | |
1638 | ||
5fba344c | 1639 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
1640 | } |
1641 | ||
1642 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
1643 | ||
1644 | static int led_read(char *p) | |
1da177e4 LT |
1645 | { |
1646 | int len = 0; | |
1647 | ||
78f81cc4 BD |
1648 | if (!led_supported) { |
1649 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1650 | return len; | |
1651 | } | |
1652 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
1653 | ||
efa27145 | 1654 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
1655 | /* 570 */ |
1656 | int i, status; | |
1657 | for (i = 0; i < 8; i++) { | |
1658 | if (!acpi_evalf(ec_handle, | |
1659 | &status, "GLED", "dd", 1 << i)) | |
1660 | return -EIO; | |
1661 | len += sprintf(p + len, "%d:\t\t%s\n", | |
1662 | i, led_status(status)); | |
1663 | } | |
1664 | } | |
1665 | ||
1da177e4 | 1666 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 1667 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
1668 | |
1669 | return len; | |
1670 | } | |
1671 | ||
78f81cc4 BD |
1672 | /* off, on, blink */ |
1673 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
1674 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
1675 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
1676 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
1677 | ||
78f81cc4 | 1678 | static int led_write(char *buf) |
1da177e4 LT |
1679 | { |
1680 | char *cmd; | |
78f81cc4 BD |
1681 | int led, ind, ret; |
1682 | ||
1683 | if (!led_supported) | |
1684 | return -ENODEV; | |
1da177e4 LT |
1685 | |
1686 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 1687 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
1688 | return -EINVAL; |
1689 | ||
78f81cc4 BD |
1690 | if (strstr(cmd, "off")) { |
1691 | ind = 0; | |
1da177e4 | 1692 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
1693 | ind = 1; |
1694 | } else if (strstr(cmd, "blink")) { | |
1695 | ind = 2; | |
1da177e4 LT |
1696 | } else |
1697 | return -EINVAL; | |
78f81cc4 | 1698 | |
efa27145 | 1699 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
1700 | /* 570 */ |
1701 | led = 1 << led; | |
1da177e4 | 1702 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 1703 | led, led_sled_arg1[ind])) |
1da177e4 | 1704 | return -EIO; |
efa27145 | 1705 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
1706 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
1707 | led = 1 << led; | |
efa27145 | 1708 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
1709 | if (ret >= 0) |
1710 | ret = | |
efa27145 | 1711 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 1712 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
1713 | if (ret >= 0) |
1714 | ret = | |
efa27145 | 1715 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 1716 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
1717 | if (ret < 0) |
1718 | return ret; | |
1719 | } else { | |
1720 | /* all others */ | |
1721 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
1722 | led, led_led_arg1[ind])) | |
1da177e4 | 1723 | return -EIO; |
78f81cc4 BD |
1724 | } |
1725 | } | |
1726 | ||
1727 | return 0; | |
1728 | } | |
1729 | ||
a5763f22 HMH |
1730 | static struct ibm_struct led_driver_data = { |
1731 | .name = "led", | |
1732 | .read = led_read, | |
1733 | .write = led_write, | |
1734 | }; | |
1735 | ||
56b6aeb0 HMH |
1736 | /************************************************************************* |
1737 | * Beep subdriver | |
1738 | */ | |
1739 | ||
1740 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
1741 | ||
a5763f22 | 1742 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 1743 | { |
fe08bc4b HMH |
1744 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
1745 | ||
8d376cd6 | 1746 | IBM_ACPIHANDLE_INIT(beep); |
5fba344c | 1747 | |
fe08bc4b HMH |
1748 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
1749 | str_supported(beep_handle != NULL)); | |
1750 | ||
5fba344c HMH |
1751 | return (beep_handle)? 0 : 1; |
1752 | } | |
1753 | ||
78f81cc4 BD |
1754 | static int beep_read(char *p) |
1755 | { | |
1756 | int len = 0; | |
1757 | ||
1758 | if (!beep_handle) | |
1759 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1760 | else { | |
1761 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
1762 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
1763 | } | |
1764 | ||
1765 | return len; | |
1766 | } | |
1767 | ||
1768 | static int beep_write(char *buf) | |
1769 | { | |
1770 | char *cmd; | |
1771 | int beep_cmd; | |
1772 | ||
1773 | if (!beep_handle) | |
1774 | return -ENODEV; | |
1775 | ||
1776 | while ((cmd = next_cmd(&buf))) { | |
1777 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
1778 | beep_cmd >= 0 && beep_cmd <= 17) { | |
1779 | /* beep_cmd set */ | |
1780 | } else | |
1781 | return -EINVAL; | |
1782 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
1783 | return -EIO; | |
1784 | } | |
1785 | ||
1786 | return 0; | |
1787 | } | |
1788 | ||
a5763f22 HMH |
1789 | static struct ibm_struct beep_driver_data = { |
1790 | .name = "beep", | |
1791 | .read = beep_read, | |
1792 | .write = beep_write, | |
1793 | }; | |
1794 | ||
56b6aeb0 HMH |
1795 | /************************************************************************* |
1796 | * Thermal subdriver | |
1797 | */ | |
78f81cc4 | 1798 | |
a26f878a | 1799 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 1800 | |
a5763f22 | 1801 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 1802 | { |
60eb0b35 HMH |
1803 | u8 t, ta1, ta2; |
1804 | int i; | |
5fba344c HMH |
1805 | int acpi_tmp7; |
1806 | ||
fe08bc4b HMH |
1807 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
1808 | ||
5fba344c | 1809 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 HMH |
1810 | |
1811 | if (ibm_thinkpad_ec_found && experimental) { | |
1812 | /* | |
1813 | * Direct EC access mode: sensors at registers | |
1814 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
1815 | * non-implemented, thermal sensors return 0x80 when | |
1816 | * not available | |
1817 | */ | |
78f81cc4 | 1818 | |
60eb0b35 HMH |
1819 | ta1 = ta2 = 0; |
1820 | for (i = 0; i < 8; i++) { | |
04cc862c | 1821 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
1822 | ta1 |= t; |
1823 | } else { | |
1824 | ta1 = 0; | |
1825 | break; | |
1826 | } | |
04cc862c | 1827 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
1828 | ta2 |= t; |
1829 | } else { | |
1830 | ta1 = 0; | |
1831 | break; | |
1832 | } | |
1833 | } | |
1834 | if (ta1 == 0) { | |
1835 | /* This is sheer paranoia, but we handle it anyway */ | |
1836 | if (acpi_tmp7) { | |
1837 | printk(IBM_ERR | |
1838 | "ThinkPad ACPI EC access misbehaving, " | |
1839 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 1840 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 HMH |
1841 | } else { |
1842 | printk(IBM_ERR | |
1843 | "ThinkPad ACPI EC access misbehaving, " | |
1844 | "disabling thermal sensors access\n"); | |
efa27145 | 1845 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
1846 | } |
1847 | } else { | |
1848 | thermal_read_mode = | |
1849 | (ta2 != 0) ? | |
efa27145 | 1850 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
1851 | } |
1852 | } else if (acpi_tmp7) { | |
a26f878a HMH |
1853 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
1854 | /* 600e/x, 770e, 770x */ | |
efa27145 | 1855 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
1856 | } else { |
1857 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 1858 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
1859 | } |
1860 | } else { | |
1861 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 1862 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 1863 | } |
78f81cc4 | 1864 | |
fe08bc4b HMH |
1865 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
1866 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
1867 | thermal_read_mode); | |
1868 | ||
5fba344c | 1869 | return (thermal_read_mode != TPACPI_THERMAL_NONE)? 0 : 1; |
78f81cc4 BD |
1870 | } |
1871 | ||
04cc862c HMH |
1872 | /* idx is zero-based */ |
1873 | static int thermal_get_sensor(int idx, s32 *value) | |
78f81cc4 | 1874 | { |
04cc862c | 1875 | int t; |
60eb0b35 | 1876 | s8 tmp; |
04cc862c | 1877 | char tmpi[5]; |
78f81cc4 | 1878 | |
04cc862c | 1879 | t = TP_EC_THERMAL_TMP0; |
78f81cc4 | 1880 | |
a26f878a | 1881 | switch (thermal_read_mode) { |
efa27145 HMH |
1882 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 |
1883 | case TPACPI_THERMAL_TPEC_16: | |
04cc862c HMH |
1884 | if (idx >= 8 && idx <= 15) { |
1885 | t = TP_EC_THERMAL_TMP8; | |
1886 | idx -= 8; | |
60eb0b35 HMH |
1887 | } |
1888 | /* fallthrough */ | |
1889 | #endif | |
efa27145 | 1890 | case TPACPI_THERMAL_TPEC_8: |
04cc862c HMH |
1891 | if (idx <= 7) { |
1892 | if (!acpi_ec_read(t + idx, &tmp)) | |
78f81cc4 | 1893 | return -EIO; |
04cc862c HMH |
1894 | *value = tmp * 1000; |
1895 | return 0; | |
60eb0b35 | 1896 | } |
04cc862c | 1897 | break; |
78f81cc4 | 1898 | |
efa27145 | 1899 | case TPACPI_THERMAL_ACPI_UPDT: |
04cc862c HMH |
1900 | if (idx <= 7) { |
1901 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
1902 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
1903 | return -EIO; | |
78f81cc4 BD |
1904 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
1905 | return -EIO; | |
04cc862c HMH |
1906 | *value = (t - 2732) * 100; |
1907 | return 0; | |
78f81cc4 | 1908 | } |
04cc862c | 1909 | break; |
78f81cc4 | 1910 | |
efa27145 | 1911 | case TPACPI_THERMAL_ACPI_TMP07: |
04cc862c HMH |
1912 | if (idx <= 7) { |
1913 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
78f81cc4 BD |
1914 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
1915 | return -EIO; | |
04cc862c HMH |
1916 | *value = t * 1000; |
1917 | return 0; | |
78f81cc4 | 1918 | } |
04cc862c | 1919 | break; |
78f81cc4 | 1920 | |
efa27145 | 1921 | case TPACPI_THERMAL_NONE: |
a26f878a | 1922 | default: |
04cc862c HMH |
1923 | return -ENOSYS; |
1924 | } | |
1925 | ||
1926 | return -EINVAL; | |
1927 | } | |
1928 | ||
1929 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
1930 | { | |
1931 | int res, i; | |
1932 | int n; | |
1933 | ||
1934 | n = 8; | |
1935 | i = 0; | |
1936 | ||
1937 | if (!s) | |
1938 | return -EINVAL; | |
1939 | ||
1940 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
1941 | n = 16; | |
1942 | ||
1943 | for(i = 0 ; i < n; i++) { | |
1944 | res = thermal_get_sensor(i, &s->temp[i]); | |
1945 | if (res) | |
1946 | return res; | |
78f81cc4 | 1947 | } |
04cc862c HMH |
1948 | |
1949 | return n; | |
a26f878a HMH |
1950 | } |
1951 | ||
1952 | static int thermal_read(char *p) | |
1953 | { | |
1954 | int len = 0; | |
1955 | int n, i; | |
1956 | struct ibm_thermal_sensors_struct t; | |
1957 | ||
1958 | n = thermal_get_sensors(&t); | |
1959 | if (unlikely(n < 0)) | |
1960 | return n; | |
1961 | ||
1962 | len += sprintf(p + len, "temperatures:\t"); | |
1963 | ||
1964 | if (n > 0) { | |
1965 | for (i = 0; i < (n - 1); i++) | |
1966 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
1967 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
1968 | } else | |
1969 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
1970 | |
1971 | return len; | |
1972 | } | |
1973 | ||
a5763f22 HMH |
1974 | static struct ibm_struct thermal_driver_data = { |
1975 | .name = "thermal", | |
1976 | .read = thermal_read, | |
1977 | }; | |
1978 | ||
56b6aeb0 HMH |
1979 | /************************************************************************* |
1980 | * EC Dump subdriver | |
1981 | */ | |
1982 | ||
78f81cc4 BD |
1983 | static u8 ecdump_regs[256]; |
1984 | ||
1985 | static int ecdump_read(char *p) | |
1986 | { | |
1987 | int len = 0; | |
1988 | int i, j; | |
1989 | u8 v; | |
1990 | ||
1991 | len += sprintf(p + len, "EC " | |
1992 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
1993 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
1994 | for (i = 0; i < 256; i += 16) { | |
1995 | len += sprintf(p + len, "EC 0x%02x:", i); | |
1996 | for (j = 0; j < 16; j++) { | |
1997 | if (!acpi_ec_read(i + j, &v)) | |
1998 | break; | |
1999 | if (v != ecdump_regs[i + j]) | |
2000 | len += sprintf(p + len, " *%02x", v); | |
2001 | else | |
2002 | len += sprintf(p + len, " %02x", v); | |
2003 | ecdump_regs[i + j] = v; | |
2004 | } | |
2005 | len += sprintf(p + len, "\n"); | |
2006 | if (j != 16) | |
2007 | break; | |
2008 | } | |
2009 | ||
2010 | /* These are way too dangerous to advertise openly... */ | |
2011 | #if 0 | |
2012 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
2013 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
2014 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
2015 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
2016 | #endif | |
2017 | return len; | |
2018 | } | |
2019 | ||
2020 | static int ecdump_write(char *buf) | |
2021 | { | |
2022 | char *cmd; | |
2023 | int i, v; | |
2024 | ||
2025 | while ((cmd = next_cmd(&buf))) { | |
2026 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
2027 | /* i and v set */ | |
2028 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
2029 | /* i and v set */ | |
2030 | } else | |
2031 | return -EINVAL; | |
2032 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
2033 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
2034 | return -EIO; |
2035 | } else | |
2036 | return -EINVAL; | |
2037 | } | |
2038 | ||
2039 | return 0; | |
78f81cc4 BD |
2040 | } |
2041 | ||
a5763f22 HMH |
2042 | static struct ibm_struct ecdump_driver_data = { |
2043 | .name = "ecdump", | |
2044 | .read = ecdump_read, | |
2045 | .write = ecdump_write, | |
92641177 | 2046 | .flags.experimental = 1, |
a5763f22 HMH |
2047 | }; |
2048 | ||
56b6aeb0 HMH |
2049 | /************************************************************************* |
2050 | * Backlight/brightness subdriver | |
2051 | */ | |
2052 | ||
2053 | static struct backlight_device *ibm_backlight_device = NULL; | |
2054 | ||
2055 | static struct backlight_ops ibm_backlight_data = { | |
2056 | .get_brightness = brightness_get, | |
2057 | .update_status = brightness_update_status, | |
2058 | }; | |
2059 | ||
a5763f22 | 2060 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
2061 | { |
2062 | int b; | |
2063 | ||
fe08bc4b HMH |
2064 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
2065 | ||
56b6aeb0 HMH |
2066 | b = brightness_get(NULL); |
2067 | if (b < 0) | |
2068 | return b; | |
2069 | ||
2070 | ibm_backlight_device = backlight_device_register("ibm", NULL, NULL, | |
2071 | &ibm_backlight_data); | |
2072 | if (IS_ERR(ibm_backlight_device)) { | |
2073 | printk(IBM_ERR "Could not register backlight device\n"); | |
2074 | return PTR_ERR(ibm_backlight_device); | |
2075 | } | |
fe08bc4b | 2076 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 HMH |
2077 | |
2078 | ibm_backlight_device->props.max_brightness = 7; | |
2079 | ibm_backlight_device->props.brightness = b; | |
2080 | backlight_update_status(ibm_backlight_device); | |
2081 | ||
2082 | return 0; | |
2083 | } | |
2084 | ||
2085 | static void brightness_exit(void) | |
2086 | { | |
2087 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
2088 | vdbg_printk(TPACPI_DBG_EXIT, |
2089 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
2090 | backlight_device_unregister(ibm_backlight_device); |
2091 | ibm_backlight_device = NULL; | |
2092 | } | |
2093 | } | |
2094 | ||
2095 | static int brightness_update_status(struct backlight_device *bd) | |
2096 | { | |
2097 | return brightness_set( | |
2098 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
2099 | bd->props.power == FB_BLANK_UNBLANK) ? | |
2100 | bd->props.brightness : 0); | |
2101 | } | |
2102 | ||
8acb0250 HM |
2103 | static int brightness_get(struct backlight_device *bd) |
2104 | { | |
8d297264 HMH |
2105 | u8 level; |
2106 | if (!acpi_ec_read(brightness_offset, &level)) | |
2107 | return -EIO; | |
8acb0250 | 2108 | |
8d297264 | 2109 | level &= 0x7; |
fb87a811 | 2110 | |
8d297264 | 2111 | return level; |
8acb0250 HM |
2112 | } |
2113 | ||
8acb0250 | 2114 | static int brightness_set(int value) |
1da177e4 | 2115 | { |
78f81cc4 | 2116 | int cmos_cmd, inc, i; |
8acb0250 HM |
2117 | int current_value = brightness_get(NULL); |
2118 | ||
2119 | value &= 7; | |
2120 | ||
56b6aeb0 | 2121 | cmos_cmd = value > current_value ? TP_CMOS_BRIGHTNESS_UP : TP_CMOS_BRIGHTNESS_DOWN; |
8acb0250 HM |
2122 | inc = value > current_value ? 1 : -1; |
2123 | for (i = current_value; i != value; i += inc) { | |
c9bea99c | 2124 | if (issue_thinkpad_cmos_command(cmos_cmd)) |
8acb0250 HM |
2125 | return -EIO; |
2126 | if (!acpi_ec_write(brightness_offset, i + inc)) | |
2127 | return -EIO; | |
2128 | } | |
2129 | ||
2130 | return 0; | |
2131 | } | |
2132 | ||
56b6aeb0 HMH |
2133 | static int brightness_read(char *p) |
2134 | { | |
2135 | int len = 0; | |
2136 | int level; | |
2137 | ||
2138 | if ((level = brightness_get(NULL)) < 0) { | |
2139 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
2140 | } else { | |
2141 | len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); | |
2142 | len += sprintf(p + len, "commands:\tup, down\n"); | |
2143 | len += sprintf(p + len, "commands:\tlevel <level>" | |
2144 | " (<level> is 0-7)\n"); | |
2145 | } | |
2146 | ||
2147 | return len; | |
2148 | } | |
2149 | ||
8acb0250 HM |
2150 | static int brightness_write(char *buf) |
2151 | { | |
2152 | int level; | |
78f81cc4 | 2153 | int new_level; |
1da177e4 | 2154 | char *cmd; |
1da177e4 LT |
2155 | |
2156 | while ((cmd = next_cmd(&buf))) { | |
8acb0250 HM |
2157 | if ((level = brightness_get(NULL)) < 0) |
2158 | return level; | |
78f81cc4 BD |
2159 | level &= 7; |
2160 | ||
2161 | if (strlencmp(cmd, "up") == 0) { | |
2162 | new_level = level == 7 ? 7 : level + 1; | |
2163 | } else if (strlencmp(cmd, "down") == 0) { | |
2164 | new_level = level == 0 ? 0 : level - 1; | |
2165 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
2166 | new_level >= 0 && new_level <= 7) { | |
2167 | /* new_level set */ | |
2168 | } else | |
2169 | return -EINVAL; | |
2170 | ||
8acb0250 | 2171 | brightness_set(new_level); |
78f81cc4 BD |
2172 | } |
2173 | ||
2174 | return 0; | |
2175 | } | |
2176 | ||
a5763f22 HMH |
2177 | static struct ibm_struct brightness_driver_data = { |
2178 | .name = "brightness", | |
2179 | .read = brightness_read, | |
2180 | .write = brightness_write, | |
2181 | .exit = brightness_exit, | |
2182 | }; | |
2183 | ||
56b6aeb0 HMH |
2184 | /************************************************************************* |
2185 | * Volume subdriver | |
2186 | */ | |
fb87a811 | 2187 | |
78f81cc4 BD |
2188 | static int volume_read(char *p) |
2189 | { | |
2190 | int len = 0; | |
2191 | u8 level; | |
2192 | ||
2193 | if (!acpi_ec_read(volume_offset, &level)) { | |
2194 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
2195 | } else { | |
2196 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
2197 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
2198 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
2199 | len += sprintf(p + len, "commands:\tlevel <level>" | |
2200 | " (<level> is 0-15)\n"); | |
2201 | } | |
2202 | ||
2203 | return len; | |
2204 | } | |
2205 | ||
78f81cc4 BD |
2206 | static int volume_write(char *buf) |
2207 | { | |
2208 | int cmos_cmd, inc, i; | |
2209 | u8 level, mute; | |
2210 | int new_level, new_mute; | |
2211 | char *cmd; | |
2212 | ||
2213 | while ((cmd = next_cmd(&buf))) { | |
2214 | if (!acpi_ec_read(volume_offset, &level)) | |
2215 | return -EIO; | |
2216 | new_mute = mute = level & 0x40; | |
2217 | new_level = level = level & 0xf; | |
2218 | ||
2219 | if (strlencmp(cmd, "up") == 0) { | |
2220 | if (mute) | |
2221 | new_mute = 0; | |
2222 | else | |
2223 | new_level = level == 15 ? 15 : level + 1; | |
2224 | } else if (strlencmp(cmd, "down") == 0) { | |
2225 | if (mute) | |
2226 | new_mute = 0; | |
2227 | else | |
2228 | new_level = level == 0 ? 0 : level - 1; | |
2229 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
2230 | new_level >= 0 && new_level <= 15) { | |
2231 | /* new_level set */ | |
2232 | } else if (strlencmp(cmd, "mute") == 0) { | |
2233 | new_mute = 0x40; | |
1da177e4 LT |
2234 | } else |
2235 | return -EINVAL; | |
2236 | ||
78f81cc4 | 2237 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 2238 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
2239 | inc = new_level > level ? 1 : -1; |
2240 | ||
c9bea99c | 2241 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
2242 | !acpi_ec_write(volume_offset, level))) |
2243 | return -EIO; | |
2244 | ||
2245 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 2246 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
2247 | !acpi_ec_write(volume_offset, i + inc)) |
2248 | return -EIO; | |
2249 | ||
c9bea99c | 2250 | if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
2251 | !acpi_ec_write(volume_offset, |
2252 | new_level + mute))) | |
2253 | return -EIO; | |
2254 | } | |
2255 | ||
2256 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 2257 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 | 2258 | |
c9bea99c | 2259 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
2260 | !acpi_ec_write(volume_offset, level + new_mute)) |
2261 | return -EIO; | |
2262 | } | |
2263 | } | |
2264 | ||
2265 | return 0; | |
2266 | } | |
2267 | ||
a5763f22 HMH |
2268 | static struct ibm_struct volume_driver_data = { |
2269 | .name = "volume", | |
2270 | .read = volume_read, | |
2271 | .write = volume_write, | |
2272 | }; | |
56b6aeb0 HMH |
2273 | |
2274 | /************************************************************************* | |
2275 | * Fan subdriver | |
2276 | */ | |
2277 | ||
2278 | /* | |
2279 | * FAN ACCESS MODES | |
2280 | * | |
efa27145 | 2281 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
2282 | * ACPI GFAN method: returns fan level |
2283 | * | |
efa27145 | 2284 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 2285 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 2286 | * |
efa27145 | 2287 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
2288 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
2289 | * | |
f51d1a39 HMH |
2290 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
2291 | * it for writing. | |
56b6aeb0 | 2292 | * |
efa27145 | 2293 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
2294 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
2295 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
2296 | * |
2297 | * Fan speed changes of any sort (including those caused by the | |
2298 | * disengaged mode) are usually done slowly by the firmware as the | |
2299 | * maximum ammount of fan duty cycle change per second seems to be | |
2300 | * limited. | |
2301 | * | |
2302 | * Reading is not available if GFAN exists. | |
2303 | * Writing is not available if SFAN exists. | |
2304 | * | |
2305 | * Bits | |
2306 | * 7 automatic mode engaged; | |
2307 | * (default operation mode of the ThinkPad) | |
2308 | * fan level is ignored in this mode. | |
f51d1a39 | 2309 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 2310 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
2311 | * the tachometer while the fan controller ramps up |
2312 | * the speed (which can take up to a few *minutes*). | |
2313 | * Speeds up fan to 100% duty-cycle, which is far above | |
2314 | * the standard RPM levels. It is not impossible that | |
2315 | * it could cause hardware damage. | |
56b6aeb0 HMH |
2316 | * 5-3 unused in some models. Extra bits for fan level |
2317 | * in others, but still useless as all values above | |
2318 | * 7 map to the same speed as level 7 in these models. | |
2319 | * 2-0 fan level (0..7 usually) | |
2320 | * 0x00 = stop | |
2321 | * 0x07 = max (set when temperatures critical) | |
2322 | * Some ThinkPads may have other levels, see | |
efa27145 | 2323 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
2324 | * |
2325 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
2326 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
2327 | * does so, its initial value is meaningless (0x07). | |
2328 | * | |
2329 | * For firmware bugs, refer to: | |
2330 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
2331 | * | |
2332 | * ---- | |
2333 | * | |
2334 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
2335 | * Main fan tachometer reading (in RPM) | |
2336 | * | |
2337 | * This register is present on all ThinkPads with a new-style EC, and | |
2338 | * it is known not to be present on the A21m/e, and T22, as there is | |
2339 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
2340 | * ThinkPads from this same time period (and earlier) probably lack the | |
2341 | * tachometer as well. | |
2342 | * | |
2343 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
2344 | * was never fixed by IBM to report the EC firmware version string | |
2345 | * probably support the tachometer (like the early X models), so | |
2346 | * detecting it is quite hard. We need more data to know for sure. | |
2347 | * | |
2348 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
2349 | * might result. | |
2350 | * | |
f51d1a39 HMH |
2351 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
2352 | * mode. | |
56b6aeb0 HMH |
2353 | * |
2354 | * For firmware bugs, refer to: | |
2355 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
2356 | * | |
efa27145 | 2357 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
2358 | * ThinkPad X31, X40, X41. Not available in the X60. |
2359 | * | |
2360 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
2361 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
2362 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
2363 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
2364 | * | |
2365 | * The speeds are stored on handles | |
2366 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
2367 | * | |
2368 | * There are three default speed sets, acessible as handles: | |
2369 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
2370 | * | |
2371 | * ACPI DSDT switches which set is in use depending on various | |
2372 | * factors. | |
2373 | * | |
efa27145 | 2374 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
2375 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
2376 | * but the ACPI tables just mention level 7. | |
2377 | */ | |
2378 | ||
69ba91cb HMH |
2379 | static enum fan_status_access_mode fan_status_access_mode; |
2380 | static enum fan_control_access_mode fan_control_access_mode; | |
2381 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 2382 | |
778b4d74 HMH |
2383 | static u8 fan_control_initial_status; |
2384 | ||
25c68a33 | 2385 | static void fan_watchdog_fire(struct work_struct *ignored); |
16663a87 | 2386 | static int fan_watchdog_maxinterval; |
25c68a33 | 2387 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 2388 | |
56b6aeb0 HMH |
2389 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
2390 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
2391 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
2392 | ); /* all others */ | |
2393 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
2394 | "JFNS", /* 770x-JL */ | |
2395 | ); /* all others */ | |
2396 | ||
a5763f22 | 2397 | static int __init fan_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2398 | { |
fe08bc4b HMH |
2399 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); |
2400 | ||
efa27145 HMH |
2401 | fan_status_access_mode = TPACPI_FAN_NONE; |
2402 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
69ba91cb | 2403 | fan_control_commands = 0; |
16663a87 | 2404 | fan_watchdog_maxinterval = 0; |
d8fd94d9 | 2405 | tp_features.fan_ctrl_status_undef = 0; |
78f81cc4 | 2406 | |
8d376cd6 HMH |
2407 | IBM_ACPIHANDLE_INIT(fans); |
2408 | IBM_ACPIHANDLE_INIT(gfan); | |
2409 | IBM_ACPIHANDLE_INIT(sfan); | |
5fba344c | 2410 | |
78f81cc4 BD |
2411 | if (gfan_handle) { |
2412 | /* 570, 600e/x, 770e, 770x */ | |
efa27145 | 2413 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; |
69ba91cb HMH |
2414 | } else { |
2415 | /* all other ThinkPads: note that even old-style | |
2416 | * ThinkPad ECs supports the fan control register */ | |
778b4d74 HMH |
2417 | if (likely(acpi_ec_read(fan_status_offset, |
2418 | &fan_control_initial_status))) { | |
efa27145 | 2419 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; |
778b4d74 HMH |
2420 | |
2421 | /* In some ThinkPads, neither the EC nor the ACPI | |
2422 | * DSDT initialize the fan status, and it ends up | |
2423 | * being set to 0x07 when it *could* be either | |
2424 | * 0x07 or 0x80. | |
2425 | * | |
2426 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
2427 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
2428 | * to be buggy. */ | |
2429 | if (fan_control_initial_status == 0x07 && | |
2430 | ibm_thinkpad_ec_found && | |
2431 | ((ibm_thinkpad_ec_found[0] == '1' && | |
2432 | ibm_thinkpad_ec_found[1] == 'Y') || | |
2433 | (ibm_thinkpad_ec_found[0] == '7' && | |
2434 | (ibm_thinkpad_ec_found[1] == '6' || | |
2435 | ibm_thinkpad_ec_found[1] == '8' || | |
2436 | ibm_thinkpad_ec_found[1] == '0')) | |
2437 | )) { | |
2438 | printk(IBM_NOTICE | |
2439 | "fan_init: initial fan status is " | |
2440 | "unknown, assuming it is in auto " | |
2441 | "mode\n"); | |
d8fd94d9 | 2442 | tp_features.fan_ctrl_status_undef = 1; |
778b4d74 | 2443 | } |
69ba91cb HMH |
2444 | } else { |
2445 | printk(IBM_ERR | |
2446 | "ThinkPad ACPI EC access misbehaving, " | |
2447 | "fan status and control unavailable\n"); | |
5fba344c | 2448 | return 1; |
69ba91cb HMH |
2449 | } |
2450 | } | |
78f81cc4 | 2451 | |
69ba91cb HMH |
2452 | if (sfan_handle) { |
2453 | /* 570, 770x-JL */ | |
efa27145 | 2454 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; |
1c6a334e | 2455 | fan_control_commands |= |
efa27145 | 2456 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; |
78f81cc4 | 2457 | } else { |
69ba91cb HMH |
2458 | if (!gfan_handle) { |
2459 | /* gfan without sfan means no fan control */ | |
2460 | /* all other models implement TP EC 0x2f control */ | |
2461 | ||
2462 | if (fans_handle) { | |
a8b7a662 | 2463 | /* X31, X40, X41 */ |
69ba91cb | 2464 | fan_control_access_mode = |
efa27145 | 2465 | TPACPI_FAN_WR_ACPI_FANS; |
69ba91cb | 2466 | fan_control_commands |= |
efa27145 HMH |
2467 | TPACPI_FAN_CMD_SPEED | |
2468 | TPACPI_FAN_CMD_LEVEL | | |
2469 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb | 2470 | } else { |
efa27145 | 2471 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; |
a12095c2 | 2472 | fan_control_commands |= |
efa27145 HMH |
2473 | TPACPI_FAN_CMD_LEVEL | |
2474 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
2475 | } |
2476 | } | |
2477 | } | |
2478 | ||
fe08bc4b HMH |
2479 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
2480 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
2481 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
2482 | fan_status_access_mode, fan_control_access_mode); | |
2483 | ||
5fba344c HMH |
2484 | return (fan_status_access_mode != TPACPI_FAN_NONE || |
2485 | fan_control_access_mode != TPACPI_FAN_WR_NONE)? | |
2486 | 0 : 1; | |
69ba91cb | 2487 | } |
78f81cc4 | 2488 | |
c52f0aa5 | 2489 | static int fan_get_status(u8 *status) |
78f81cc4 | 2490 | { |
c52f0aa5 | 2491 | u8 s; |
78f81cc4 | 2492 | |
a8b7a662 | 2493 | /* TODO: |
efa27145 | 2494 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ |
a8b7a662 | 2495 | |
3ef8a609 | 2496 | switch (fan_status_access_mode) { |
efa27145 | 2497 | case TPACPI_FAN_RD_ACPI_GFAN: |
78f81cc4 | 2498 | /* 570, 600e/x, 770e, 770x */ |
c52f0aa5 HMH |
2499 | |
2500 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) | |
1da177e4 | 2501 | return -EIO; |
78f81cc4 | 2502 | |
c52f0aa5 HMH |
2503 | if (likely(status)) |
2504 | *status = s & 0x07; | |
3ef8a609 HMH |
2505 | |
2506 | break; | |
2507 | ||
efa27145 | 2508 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 2509 | /* all except 570, 600e/x, 770e, 770x */ |
c52f0aa5 | 2510 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
3ef8a609 | 2511 | return -EIO; |
78f81cc4 | 2512 | |
c52f0aa5 HMH |
2513 | if (likely(status)) |
2514 | *status = s; | |
2515 | ||
2516 | break; | |
2517 | ||
2518 | default: | |
2519 | return -ENXIO; | |
78f81cc4 BD |
2520 | } |
2521 | ||
c52f0aa5 HMH |
2522 | return 0; |
2523 | } | |
2524 | ||
56b6aeb0 HMH |
2525 | static void fan_exit(void) |
2526 | { | |
99fba3f8 | 2527 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 HMH |
2528 | cancel_delayed_work(&fan_watchdog_task); |
2529 | flush_scheduled_work(); | |
2530 | } | |
2531 | ||
c52f0aa5 HMH |
2532 | static int fan_get_speed(unsigned int *speed) |
2533 | { | |
2534 | u8 hi, lo; | |
2535 | ||
2536 | switch (fan_status_access_mode) { | |
efa27145 | 2537 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 2538 | /* all except 570, 600e/x, 770e, 770x */ |
3ef8a609 HMH |
2539 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
2540 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
2541 | return -EIO; | |
3ef8a609 | 2542 | |
c52f0aa5 HMH |
2543 | if (likely(speed)) |
2544 | *speed = (hi << 8) | lo; | |
2545 | ||
2546 | break; | |
2547 | ||
2548 | default: | |
2549 | return -ENXIO; | |
2550 | } | |
2551 | ||
2552 | return 0; | |
2553 | } | |
2554 | ||
56b6aeb0 | 2555 | static void fan_watchdog_fire(struct work_struct *ignored) |
16663a87 | 2556 | { |
99fba3f8 HMH |
2557 | int rc; |
2558 | ||
56b6aeb0 | 2559 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); |
99fba3f8 HMH |
2560 | rc = fan_set_enable(); |
2561 | if (rc < 0) { | |
2562 | printk(IBM_ERR "fan watchdog: error %d while enabling fan, " | |
2563 | "will try again later...\n", -rc); | |
56b6aeb0 HMH |
2564 | /* reschedule for later */ |
2565 | fan_watchdog_reset(); | |
2566 | } | |
16663a87 HMH |
2567 | } |
2568 | ||
2569 | static void fan_watchdog_reset(void) | |
2570 | { | |
2571 | static int fan_watchdog_active = 0; | |
2572 | ||
2573 | if (fan_watchdog_active) | |
2574 | cancel_delayed_work(&fan_watchdog_task); | |
2575 | ||
2576 | if (fan_watchdog_maxinterval > 0) { | |
2577 | fan_watchdog_active = 1; | |
2578 | if (!schedule_delayed_work(&fan_watchdog_task, | |
2579 | msecs_to_jiffies(fan_watchdog_maxinterval | |
2580 | * 1000))) { | |
2581 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
2582 | "watchdog will not trigger\n"); | |
2583 | } | |
2584 | } else | |
2585 | fan_watchdog_active = 0; | |
2586 | } | |
2587 | ||
18ad7996 | 2588 | static int fan_set_level(int level) |
78f81cc4 | 2589 | { |
18ad7996 | 2590 | switch (fan_control_access_mode) { |
efa27145 | 2591 | case TPACPI_FAN_WR_ACPI_SFAN: |
18ad7996 | 2592 | if (level >= 0 && level <= 7) { |
78f81cc4 BD |
2593 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
2594 | return -EIO; | |
18ad7996 HMH |
2595 | } else |
2596 | return -EINVAL; | |
2597 | break; | |
2598 | ||
efa27145 HMH |
2599 | case TPACPI_FAN_WR_ACPI_FANS: |
2600 | case TPACPI_FAN_WR_TPEC: | |
2601 | if ((level != TP_EC_FAN_AUTO) && | |
2602 | (level != TP_EC_FAN_FULLSPEED) && | |
a12095c2 HMH |
2603 | ((level < 0) || (level > 7))) |
2604 | return -EINVAL; | |
2605 | ||
2606 | if (!acpi_ec_write(fan_status_offset, level)) | |
2607 | return -EIO; | |
778b4d74 | 2608 | else |
d8fd94d9 | 2609 | tp_features.fan_ctrl_status_undef = 0; |
a12095c2 HMH |
2610 | break; |
2611 | ||
18ad7996 HMH |
2612 | default: |
2613 | return -ENXIO; | |
2614 | } | |
2615 | return 0; | |
2616 | } | |
2617 | ||
2618 | static int fan_set_enable(void) | |
2619 | { | |
1c6a334e HMH |
2620 | u8 s; |
2621 | int rc; | |
2622 | ||
18ad7996 | 2623 | switch (fan_control_access_mode) { |
efa27145 HMH |
2624 | case TPACPI_FAN_WR_ACPI_FANS: |
2625 | case TPACPI_FAN_WR_TPEC: | |
1c6a334e HMH |
2626 | if ((rc = fan_get_status(&s)) < 0) |
2627 | return rc; | |
2628 | ||
2629 | /* Don't go out of emergency fan mode */ | |
2630 | if (s != 7) | |
efa27145 | 2631 | s = TP_EC_FAN_AUTO; |
1c6a334e HMH |
2632 | |
2633 | if (!acpi_ec_write(fan_status_offset, s)) | |
2634 | return -EIO; | |
778b4d74 | 2635 | else |
d8fd94d9 | 2636 | tp_features.fan_ctrl_status_undef = 0; |
1c6a334e HMH |
2637 | break; |
2638 | ||
efa27145 | 2639 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e HMH |
2640 | if ((rc = fan_get_status(&s)) < 0) |
2641 | return rc; | |
2642 | ||
2643 | s &= 0x07; | |
2644 | ||
2645 | /* Set fan to at least level 4 */ | |
2646 | if (s < 4) | |
2647 | s = 4; | |
2648 | ||
2649 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) | |
18ad7996 HMH |
2650 | return -EIO; |
2651 | break; | |
2652 | ||
2653 | default: | |
2654 | return -ENXIO; | |
2655 | } | |
2656 | return 0; | |
2657 | } | |
2658 | ||
2659 | static int fan_set_disable(void) | |
2660 | { | |
2661 | switch (fan_control_access_mode) { | |
efa27145 HMH |
2662 | case TPACPI_FAN_WR_ACPI_FANS: |
2663 | case TPACPI_FAN_WR_TPEC: | |
18ad7996 HMH |
2664 | if (!acpi_ec_write(fan_status_offset, 0x00)) |
2665 | return -EIO; | |
778b4d74 | 2666 | else |
d8fd94d9 | 2667 | tp_features.fan_ctrl_status_undef = 0; |
18ad7996 HMH |
2668 | break; |
2669 | ||
efa27145 | 2670 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e HMH |
2671 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) |
2672 | return -EIO; | |
2673 | break; | |
2674 | ||
18ad7996 HMH |
2675 | default: |
2676 | return -ENXIO; | |
2677 | } | |
56b6aeb0 HMH |
2678 | return 0; |
2679 | } | |
2680 | ||
2681 | static int fan_set_speed(int speed) | |
2682 | { | |
2683 | switch (fan_control_access_mode) { | |
efa27145 | 2684 | case TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
2685 | if (speed >= 0 && speed <= 65535) { |
2686 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
2687 | speed, speed, speed)) | |
2688 | return -EIO; | |
2689 | } else | |
2690 | return -EINVAL; | |
2691 | break; | |
2692 | ||
2693 | default: | |
2694 | return -ENXIO; | |
2695 | } | |
2696 | return 0; | |
2697 | } | |
2698 | ||
2699 | static int fan_read(char *p) | |
2700 | { | |
2701 | int len = 0; | |
2702 | int rc; | |
2703 | u8 status; | |
2704 | unsigned int speed = 0; | |
2705 | ||
2706 | switch (fan_status_access_mode) { | |
efa27145 | 2707 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
2708 | /* 570, 600e/x, 770e, 770x */ |
2709 | if ((rc = fan_get_status(&status)) < 0) | |
2710 | return rc; | |
2711 | ||
2712 | len += sprintf(p + len, "status:\t\t%s\n" | |
2713 | "level:\t\t%d\n", | |
2714 | (status != 0) ? "enabled" : "disabled", status); | |
2715 | break; | |
2716 | ||
efa27145 | 2717 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 HMH |
2718 | /* all except 570, 600e/x, 770e, 770x */ |
2719 | if ((rc = fan_get_status(&status)) < 0) | |
2720 | return rc; | |
2721 | ||
d8fd94d9 | 2722 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 2723 | if (status != fan_control_initial_status) |
d8fd94d9 | 2724 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
2725 | else |
2726 | /* Return most likely status. In fact, it | |
2727 | * might be the only possible status */ | |
efa27145 | 2728 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
2729 | } |
2730 | ||
2731 | len += sprintf(p + len, "status:\t\t%s\n", | |
2732 | (status != 0) ? "enabled" : "disabled"); | |
2733 | ||
56b6aeb0 HMH |
2734 | if ((rc = fan_get_speed(&speed)) < 0) |
2735 | return rc; | |
2736 | ||
2737 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
2738 | ||
efa27145 | 2739 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
2740 | /* Disengaged mode takes precedence */ |
2741 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 2742 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
2743 | len += sprintf(p + len, "level:\t\tauto\n"); |
2744 | else | |
2745 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
2746 | break; | |
2747 | ||
efa27145 | 2748 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
2749 | default: |
2750 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2751 | } | |
2752 | ||
efa27145 | 2753 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
2754 | len += sprintf(p + len, "commands:\tlevel <level>"); |
2755 | ||
2756 | switch (fan_control_access_mode) { | |
efa27145 | 2757 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
2758 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
2759 | break; | |
2760 | ||
2761 | default: | |
2762 | len += sprintf(p + len, " (<level> is 0-7, " | |
2763 | "auto, disengaged)\n"); | |
2764 | break; | |
2765 | } | |
2766 | } | |
18ad7996 | 2767 | |
efa27145 | 2768 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
2769 | len += sprintf(p + len, "commands:\tenable, disable\n" |
2770 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
2771 | "1-120 (seconds))\n"); | |
1da177e4 | 2772 | |
efa27145 | 2773 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
2774 | len += sprintf(p + len, "commands:\tspeed <speed>" |
2775 | " (<speed> is 0-65535)\n"); | |
2776 | ||
2777 | return len; | |
78f81cc4 BD |
2778 | } |
2779 | ||
18ad7996 HMH |
2780 | static int fan_write_cmd_level(const char *cmd, int *rc) |
2781 | { | |
2782 | int level; | |
2783 | ||
a12095c2 | 2784 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 2785 | level = TP_EC_FAN_AUTO; |
a12095c2 | 2786 | else if (strlencmp(cmd, "level disengaged") == 0) |
efa27145 | 2787 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 2788 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
2789 | return 0; |
2790 | ||
2791 | if ((*rc = fan_set_level(level)) == -ENXIO) | |
2792 | printk(IBM_ERR "level command accepted for unsupported " | |
2793 | "access mode %d", fan_control_access_mode); | |
2794 | ||
2795 | return 1; | |
2796 | } | |
2797 | ||
2798 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
2799 | { | |
2800 | if (strlencmp(cmd, "enable") != 0) | |
2801 | return 0; | |
2802 | ||
2803 | if ((*rc = fan_set_enable()) == -ENXIO) | |
2804 | printk(IBM_ERR "enable command accepted for unsupported " | |
2805 | "access mode %d", fan_control_access_mode); | |
2806 | ||
2807 | return 1; | |
2808 | } | |
2809 | ||
2810 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
2811 | { | |
2812 | if (strlencmp(cmd, "disable") != 0) | |
2813 | return 0; | |
2814 | ||
2815 | if ((*rc = fan_set_disable()) == -ENXIO) | |
2816 | printk(IBM_ERR "disable command accepted for unsupported " | |
2817 | "access mode %d", fan_control_access_mode); | |
2818 | ||
2819 | return 1; | |
2820 | } | |
2821 | ||
2822 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
2823 | { | |
2824 | int speed; | |
2825 | ||
a8b7a662 HMH |
2826 | /* TODO: |
2827 | * Support speed <low> <medium> <high> ? */ | |
2828 | ||
18ad7996 HMH |
2829 | if (sscanf(cmd, "speed %d", &speed) != 1) |
2830 | return 0; | |
2831 | ||
2832 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
2833 | printk(IBM_ERR "speed command accepted for unsupported " | |
2834 | "access mode %d", fan_control_access_mode); | |
2835 | ||
2836 | return 1; | |
2837 | } | |
2838 | ||
16663a87 HMH |
2839 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
2840 | { | |
2841 | int interval; | |
2842 | ||
2843 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
2844 | return 0; | |
2845 | ||
2846 | if (interval < 0 || interval > 120) | |
2847 | *rc = -EINVAL; | |
2848 | else | |
2849 | fan_watchdog_maxinterval = interval; | |
2850 | ||
2851 | return 1; | |
2852 | } | |
2853 | ||
18ad7996 HMH |
2854 | static int fan_write(char *buf) |
2855 | { | |
2856 | char *cmd; | |
2857 | int rc = 0; | |
2858 | ||
2859 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 2860 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 2861 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 2862 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 2863 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
2864 | fan_write_cmd_disable(cmd, &rc) || |
2865 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 2866 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
2867 | fan_write_cmd_speed(cmd, &rc)) |
2868 | ) | |
2869 | rc = -EINVAL; | |
16663a87 HMH |
2870 | else if (!rc) |
2871 | fan_watchdog_reset(); | |
18ad7996 HMH |
2872 | } |
2873 | ||
2874 | return rc; | |
2875 | } | |
2876 | ||
a5763f22 HMH |
2877 | static struct ibm_struct fan_driver_data = { |
2878 | .name = "fan", | |
2879 | .read = fan_read, | |
2880 | .write = fan_write, | |
2881 | .exit = fan_exit, | |
92641177 | 2882 | .flags.experimental = 1, |
a5763f22 HMH |
2883 | }; |
2884 | ||
56b6aeb0 HMH |
2885 | /**************************************************************************** |
2886 | **************************************************************************** | |
2887 | * | |
2888 | * Infrastructure | |
2889 | * | |
2890 | **************************************************************************** | |
2891 | ****************************************************************************/ | |
2892 | ||
2893 | /* /proc support */ | |
2894 | static struct proc_dir_entry *proc_dir = NULL; | |
16663a87 | 2895 | |
56b6aeb0 | 2896 | /* Subdriver registry */ |
a5763f22 HMH |
2897 | static LIST_HEAD(tpacpi_all_drivers); |
2898 | ||
1da177e4 | 2899 | |
56b6aeb0 HMH |
2900 | /* |
2901 | * Module and infrastructure proble, init and exit handling | |
2902 | */ | |
1da177e4 | 2903 | |
fe08bc4b | 2904 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 2905 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 2906 | { |
a5763f22 | 2907 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 2908 | |
a5763f22 | 2909 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
2910 | } |
2911 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
2912 | ||
a5763f22 | 2913 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
2914 | { |
2915 | int ret; | |
a5763f22 | 2916 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
2917 | struct proc_dir_entry *entry; |
2918 | ||
a5763f22 HMH |
2919 | BUG_ON(ibm == NULL); |
2920 | ||
2921 | INIT_LIST_HEAD(&ibm->all_drivers); | |
2922 | ||
92641177 | 2923 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
2924 | return 0; |
2925 | ||
fe08bc4b HMH |
2926 | dbg_printk(TPACPI_DBG_INIT, |
2927 | "probing for %s\n", ibm->name); | |
2928 | ||
a5763f22 HMH |
2929 | if (iibm->init) { |
2930 | ret = iibm->init(iibm); | |
5fba344c HMH |
2931 | if (ret > 0) |
2932 | return 0; /* probe failed */ | |
2933 | if (ret) | |
1da177e4 | 2934 | return ret; |
a5763f22 | 2935 | |
92641177 | 2936 | ibm->flags.init_called = 1; |
1da177e4 LT |
2937 | } |
2938 | ||
8d376cd6 HMH |
2939 | if (ibm->acpi) { |
2940 | if (ibm->acpi->hid) { | |
2941 | ret = register_tpacpi_subdriver(ibm); | |
2942 | if (ret) | |
2943 | goto err_out; | |
2944 | } | |
5fba344c | 2945 | |
8d376cd6 HMH |
2946 | if (ibm->acpi->notify) { |
2947 | ret = setup_acpi_notify(ibm); | |
2948 | if (ret == -ENODEV) { | |
2949 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
2950 | ibm->name); | |
2951 | ret = 0; | |
2952 | goto err_out; | |
2953 | } | |
2954 | if (ret < 0) | |
2955 | goto err_out; | |
5fba344c | 2956 | } |
5fba344c HMH |
2957 | } |
2958 | ||
fe08bc4b HMH |
2959 | dbg_printk(TPACPI_DBG_INIT, |
2960 | "%s installed\n", ibm->name); | |
2961 | ||
78f81cc4 BD |
2962 | if (ibm->read) { |
2963 | entry = create_proc_entry(ibm->name, | |
2964 | S_IFREG | S_IRUGO | S_IWUSR, | |
2965 | proc_dir); | |
2966 | if (!entry) { | |
2967 | printk(IBM_ERR "unable to create proc entry %s\n", | |
2968 | ibm->name); | |
5fba344c HMH |
2969 | ret = -ENODEV; |
2970 | goto err_out; | |
78f81cc4 BD |
2971 | } |
2972 | entry->owner = THIS_MODULE; | |
2973 | entry->data = ibm; | |
8d376cd6 | 2974 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 2975 | if (ibm->write) |
8d376cd6 | 2976 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 2977 | ibm->flags.proc_created = 1; |
78f81cc4 | 2978 | } |
1da177e4 | 2979 | |
a5763f22 HMH |
2980 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
2981 | ||
1da177e4 | 2982 | return 0; |
5fba344c HMH |
2983 | |
2984 | err_out: | |
fe08bc4b HMH |
2985 | dbg_printk(TPACPI_DBG_INIT, |
2986 | "%s: at error exit path with result %d\n", | |
2987 | ibm->name, ret); | |
2988 | ||
5fba344c HMH |
2989 | ibm_exit(ibm); |
2990 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
2991 | } |
2992 | ||
2993 | static void ibm_exit(struct ibm_struct *ibm) | |
2994 | { | |
fe08bc4b | 2995 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); |
a5763f22 HMH |
2996 | |
2997 | list_del_init(&ibm->all_drivers); | |
2998 | ||
8d376cd6 | 2999 | if (ibm->flags.acpi_notify_installed) { |
fe08bc4b HMH |
3000 | dbg_printk(TPACPI_DBG_EXIT, |
3001 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8d376cd6 HMH |
3002 | BUG_ON(!ibm->acpi); |
3003 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
3004 | ibm->acpi->type, | |
3005 | dispatch_acpi_notify); | |
3006 | ibm->flags.acpi_notify_installed = 0; | |
3007 | ibm->flags.acpi_notify_installed = 0; | |
5fba344c | 3008 | } |
1da177e4 | 3009 | |
92641177 | 3010 | if (ibm->flags.proc_created) { |
fe08bc4b HMH |
3011 | dbg_printk(TPACPI_DBG_EXIT, |
3012 | "%s: remove_proc_entry\n", ibm->name); | |
1da177e4 | 3013 | remove_proc_entry(ibm->name, proc_dir); |
92641177 | 3014 | ibm->flags.proc_created = 0; |
5fba344c | 3015 | } |
1da177e4 | 3016 | |
8d376cd6 | 3017 | if (ibm->flags.acpi_driver_registered) { |
fe08bc4b HMH |
3018 | dbg_printk(TPACPI_DBG_EXIT, |
3019 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8d376cd6 HMH |
3020 | BUG_ON(!ibm->acpi); |
3021 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
3022 | kfree(ibm->acpi->driver); | |
3023 | ibm->acpi->driver = NULL; | |
3024 | ibm->flags.acpi_driver_registered = 0; | |
5fba344c HMH |
3025 | } |
3026 | ||
92641177 | 3027 | if (ibm->flags.init_called && ibm->exit) { |
5fba344c | 3028 | ibm->exit(); |
92641177 | 3029 | ibm->flags.init_called = 0; |
1da177e4 | 3030 | } |
a5763f22 HMH |
3031 | |
3032 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
1da177e4 LT |
3033 | } |
3034 | ||
56b6aeb0 HMH |
3035 | /* Probing */ |
3036 | ||
3037 | static char *ibm_thinkpad_ec_found = NULL; | |
3038 | ||
3039 | static char* __init check_dmi_for_ec(void) | |
1da177e4 | 3040 | { |
56b6aeb0 HMH |
3041 | struct dmi_device *dev = NULL; |
3042 | char ec_fw_string[18]; | |
1da177e4 | 3043 | |
56b6aeb0 HMH |
3044 | /* |
3045 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
3046 | * X32 or newer, all Z series; Some models must have an | |
3047 | * up-to-date BIOS or they will not be detected. | |
3048 | * | |
3049 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
3050 | */ | |
3051 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
3052 | if (sscanf(dev->name, | |
3053 | "IBM ThinkPad Embedded Controller -[%17c", | |
3054 | ec_fw_string) == 1) { | |
3055 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
3056 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
3057 | return kstrdup(ec_fw_string, GFP_KERNEL); | |
78f81cc4 | 3058 | } |
1da177e4 | 3059 | } |
56b6aeb0 | 3060 | return NULL; |
1da177e4 LT |
3061 | } |
3062 | ||
5fba344c HMH |
3063 | static int __init probe_for_thinkpad(void) |
3064 | { | |
3065 | int is_thinkpad; | |
3066 | ||
3067 | if (acpi_disabled) | |
3068 | return -ENODEV; | |
3069 | ||
3070 | /* | |
3071 | * Non-ancient models have better DMI tagging, but very old models | |
3072 | * don't. | |
3073 | */ | |
3074 | is_thinkpad = dmi_name_in_vendors("ThinkPad"); | |
3075 | ||
3076 | /* ec is required because many other handles are relative to it */ | |
8d376cd6 | 3077 | IBM_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
3078 | if (!ec_handle) { |
3079 | if (is_thinkpad) | |
3080 | printk(IBM_ERR | |
3081 | "Not yet supported ThinkPad detected!\n"); | |
3082 | return -ENODEV; | |
3083 | } | |
3084 | ||
0dcef77c HMH |
3085 | /* |
3086 | * Risks a regression on very old machines, but reduces potential | |
3087 | * false positives a damn great deal | |
3088 | */ | |
3089 | if (!is_thinkpad) | |
3090 | is_thinkpad = dmi_name_in_vendors("IBM"); | |
3091 | ||
3092 | if (!is_thinkpad && !force_load) | |
3093 | return -ENODEV; | |
3094 | ||
5fba344c HMH |
3095 | return 0; |
3096 | } | |
3097 | ||
3098 | ||
56b6aeb0 | 3099 | /* Module init, exit, parameters */ |
1da177e4 | 3100 | |
a5763f22 HMH |
3101 | static struct ibm_init_struct ibms_init[] __initdata = { |
3102 | { | |
3103 | .init = thinkpad_acpi_driver_init, | |
3104 | .data = &thinkpad_acpi_driver_data, | |
3105 | }, | |
3106 | { | |
3107 | .init = hotkey_init, | |
3108 | .data = &hotkey_driver_data, | |
3109 | }, | |
3110 | { | |
3111 | .init = bluetooth_init, | |
3112 | .data = &bluetooth_driver_data, | |
3113 | }, | |
3114 | { | |
3115 | .init = wan_init, | |
3116 | .data = &wan_driver_data, | |
3117 | }, | |
3118 | { | |
3119 | .init = video_init, | |
3120 | .data = &video_driver_data, | |
3121 | }, | |
3122 | { | |
3123 | .init = light_init, | |
3124 | .data = &light_driver_data, | |
3125 | }, | |
3126 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
3127 | { | |
3128 | .init = dock_init, | |
3129 | .data = &dock_driver_data[0], | |
3130 | }, | |
3131 | { | |
3132 | .data = &dock_driver_data[1], | |
3133 | }, | |
3134 | #endif | |
3135 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
3136 | { | |
3137 | .init = bay_init, | |
3138 | .data = &bay_driver_data, | |
3139 | }, | |
3140 | #endif | |
3141 | { | |
3142 | .init = cmos_init, | |
3143 | .data = &cmos_driver_data, | |
3144 | }, | |
3145 | { | |
3146 | .init = led_init, | |
3147 | .data = &led_driver_data, | |
3148 | }, | |
3149 | { | |
3150 | .init = beep_init, | |
3151 | .data = &beep_driver_data, | |
3152 | }, | |
3153 | { | |
3154 | .init = thermal_init, | |
3155 | .data = &thermal_driver_data, | |
3156 | }, | |
3157 | { | |
3158 | .data = &ecdump_driver_data, | |
3159 | }, | |
3160 | { | |
3161 | .init = brightness_init, | |
3162 | .data = &brightness_driver_data, | |
3163 | }, | |
3164 | { | |
3165 | .data = &volume_driver_data, | |
3166 | }, | |
3167 | { | |
3168 | .init = fan_init, | |
3169 | .data = &fan_driver_data, | |
3170 | }, | |
3171 | }; | |
3172 | ||
3945ac36 | 3173 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
3174 | { |
3175 | unsigned int i; | |
a5763f22 | 3176 | struct ibm_struct *ibm; |
1da177e4 | 3177 | |
a5763f22 HMH |
3178 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
3179 | ibm = ibms_init[i].data; | |
3180 | BUG_ON(ibm == NULL); | |
3181 | ||
3182 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
3183 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 3184 | return -ENOSPC; |
a5763f22 HMH |
3185 | strcpy(ibms_init[i].param, val); |
3186 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
3187 | return 0; |
3188 | } | |
a5763f22 | 3189 | } |
1da177e4 | 3190 | |
1da177e4 LT |
3191 | return -EINVAL; |
3192 | } | |
3193 | ||
56b6aeb0 HMH |
3194 | static int experimental; |
3195 | module_param(experimental, int, 0); | |
3196 | ||
132ce091 HMH |
3197 | static u32 dbg_level; |
3198 | module_param_named(debug, dbg_level, uint, 0); | |
3199 | ||
0dcef77c HMH |
3200 | static int force_load; |
3201 | module_param(force_load, int, 0); | |
3202 | ||
1da177e4 LT |
3203 | #define IBM_PARAM(feature) \ |
3204 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
3205 | ||
78f81cc4 BD |
3206 | IBM_PARAM(hotkey); |
3207 | IBM_PARAM(bluetooth); | |
3208 | IBM_PARAM(video); | |
3209 | IBM_PARAM(light); | |
85998248 | 3210 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
78f81cc4 | 3211 | IBM_PARAM(dock); |
63e5f248 | 3212 | #endif |
85998248 | 3213 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 | 3214 | IBM_PARAM(bay); |
85998248 | 3215 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
78f81cc4 BD |
3216 | IBM_PARAM(cmos); |
3217 | IBM_PARAM(led); | |
3218 | IBM_PARAM(beep); | |
3219 | IBM_PARAM(ecdump); | |
3220 | IBM_PARAM(brightness); | |
3221 | IBM_PARAM(volume); | |
3222 | IBM_PARAM(fan); | |
3223 | ||
1def7115 | 3224 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
3225 | { |
3226 | int ret, i; | |
3227 | ||
5fba344c HMH |
3228 | ret = probe_for_thinkpad(); |
3229 | if (ret) | |
3230 | return ret; | |
1da177e4 | 3231 | |
60eb0b35 | 3232 | ibm_thinkpad_ec_found = check_dmi_for_ec(); |
8d376cd6 HMH |
3233 | IBM_ACPIHANDLE_INIT(ecrd); |
3234 | IBM_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 3235 | |
8d376cd6 | 3236 | proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir); |
1da177e4 | 3237 | if (!proc_dir) { |
8d376cd6 | 3238 | printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR); |
1def7115 | 3239 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
3240 | return -ENODEV; |
3241 | } | |
3242 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 3243 | |
a5763f22 HMH |
3244 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
3245 | ret = ibm_init(&ibms_init[i]); | |
3246 | if (ret >= 0 && *ibms_init[i].param) | |
3247 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 3248 | if (ret < 0) { |
1def7115 | 3249 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
3250 | return ret; |
3251 | } | |
3252 | } | |
3253 | ||
3254 | return 0; | |
3255 | } | |
3256 | ||
1def7115 | 3257 | static void thinkpad_acpi_module_exit(void) |
56b6aeb0 | 3258 | { |
a5763f22 HMH |
3259 | struct ibm_struct *ibm, *itmp; |
3260 | ||
3261 | list_for_each_entry_safe_reverse(ibm, itmp, | |
3262 | &tpacpi_all_drivers, | |
3263 | all_drivers) { | |
3264 | ibm_exit(ibm); | |
3265 | } | |
56b6aeb0 | 3266 | |
a5763f22 | 3267 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); |
56b6aeb0 HMH |
3268 | |
3269 | if (proc_dir) | |
8d376cd6 | 3270 | remove_proc_entry(IBM_PROC_DIR, acpi_root_dir); |
56b6aeb0 | 3271 | |
8d376cd6 | 3272 | kfree(ibm_thinkpad_ec_found); |
56b6aeb0 HMH |
3273 | } |
3274 | ||
1def7115 HMH |
3275 | module_init(thinkpad_acpi_module_init); |
3276 | module_exit(thinkpad_acpi_module_exit); |