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 | ||
b856f5b8 | 24 | #define IBM_VERSION "0.17" |
7fd40029 | 25 | #define TPACPI_SYSFS_VERSION 0x020000 |
78f81cc4 BD |
26 | |
27 | /* | |
1da177e4 | 28 | * Changelog: |
643f12db HMH |
29 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
30 | * drivers/misc. | |
f9ff43a6 HMH |
31 | * |
32 | * 2006-11-22 0.13 new maintainer | |
33 | * changelog now lives in git commit history, and will | |
34 | * not be updated further in-file. | |
837ca6dd | 35 | * |
78f81cc4 BD |
36 | * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels |
37 | * 2005-03-17 0.11 support for 600e, 770x | |
38 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
39 | * support for 770e, G41 | |
40 | * G40 and G41 don't have a thinklight | |
41 | * temperatures no longer experimental | |
42 | * experimental brightness control | |
43 | * experimental volume control | |
44 | * experimental fan enable/disable | |
837ca6dd | 45 | * 2005-01-16 0.10 fix module loading on R30, R31 |
78f81cc4 BD |
46 | * 2005-01-16 0.9 support for 570, R30, R31 |
47 | * ultrabay support on A22p, A3x | |
48 | * limit arg for cmos, led, beep, drop experimental status | |
49 | * more capable led control on A21e, A22p, T20-22, X20 | |
50 | * experimental temperatures and fan speed | |
51 | * experimental embedded controller register dump | |
52 | * mark more functions as __init, drop incorrect __exit | |
53 | * use MODULE_VERSION | |
54 | * thanks to Henrik Brix Andersen <brix@gentoo.org> | |
55 | * fix parameter passing on module loading | |
56 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
57 | * thanks to Jim Radford <radford@blackbean.org> | |
58 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
59 | * thanks to Chris Wright <chrisw@osdl.org> | |
60 | * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20 | |
61 | * fix led control on A21e | |
62 | * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device | |
1da177e4 LT |
63 | * 2004-10-18 0.5 thinklight support on A21e, G40, R32, T20, T21, X20 |
64 | * proc file format changed | |
65 | * video_switch command | |
66 | * experimental cmos control | |
67 | * experimental led control | |
68 | * experimental acpi sounds | |
78f81cc4 BD |
69 | * 2004-09-16 0.4 support for module parameters |
70 | * hotkey mask can be prefixed by 0x | |
71 | * video output switching | |
72 | * video expansion control | |
73 | * ultrabay eject support | |
74 | * removed lcd brightness/on/off control, didn't work | |
75 | * 2004-08-17 0.3 support for R40 | |
76 | * lcd off, brightness control | |
77 | * thinklight on/off | |
78 | * 2004-08-14 0.2 support for T series, X20 | |
79 | * bluetooth enable/disable | |
80 | * hotkey events disabled by default | |
81 | * removed fan control, currently useless | |
82 | * 2004-08-09 0.1 initial release, support for X series | |
1da177e4 LT |
83 | */ |
84 | ||
f21f85de | 85 | #include "thinkpad_acpi.h" |
1da177e4 | 86 | |
f9ff43a6 | 87 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); |
78f81cc4 BD |
88 | MODULE_DESCRIPTION(IBM_DESC); |
89 | MODULE_VERSION(IBM_VERSION); | |
90 | MODULE_LICENSE("GPL"); | |
91 | ||
d903ac54 HMH |
92 | /* Please remove this in year 2009 */ |
93 | MODULE_ALIAS("ibm_acpi"); | |
94 | ||
b964b437 HMH |
95 | /* |
96 | * DMI matching for module autoloading | |
97 | * | |
98 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
99 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
100 | * | |
101 | * Only models listed in thinkwiki will be supported, so add yours | |
102 | * if it is not there yet. | |
103 | */ | |
104 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
105 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
106 | ||
107 | /* Non-ancient thinkpads */ | |
108 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
109 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
110 | ||
111 | /* Ancient thinkpad BIOSes have to be identified by | |
112 | * BIOS type or model number, and there are far less | |
113 | * BIOS types than model numbers... */ | |
114 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
115 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
116 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
117 | ||
1da177e4 LT |
118 | #define __unused __attribute__ ((unused)) |
119 | ||
8fef502e HMH |
120 | static enum { |
121 | TPACPI_LIFE_INIT = 0, | |
122 | TPACPI_LIFE_RUNNING, | |
123 | TPACPI_LIFE_EXITING, | |
124 | } tpacpi_lifecycle; | |
125 | ||
56b6aeb0 HMH |
126 | /**************************************************************************** |
127 | **************************************************************************** | |
128 | * | |
129 | * ACPI Helpers and device model | |
130 | * | |
131 | **************************************************************************** | |
132 | ****************************************************************************/ | |
133 | ||
134 | /************************************************************************* | |
135 | * ACPI basic handles | |
136 | */ | |
1da177e4 | 137 | |
94954cc6 | 138 | static acpi_handle root_handle; |
1da177e4 LT |
139 | |
140 | #define IBM_HANDLE(object, parent, paths...) \ | |
141 | static acpi_handle object##_handle; \ | |
142 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 143 | static char *object##_path; \ |
1da177e4 LT |
144 | static char *object##_paths[] = { paths } |
145 | ||
78f81cc4 BD |
146 | IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
147 | "\\_SB.PCI.ISA.EC", /* 570 */ | |
148 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
149 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
150 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
151 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
152 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 153 | ); |
78f81cc4 | 154 | |
56b6aeb0 HMH |
155 | IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
156 | IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 157 | |
56b6aeb0 HMH |
158 | |
159 | /************************************************************************* | |
160 | * Misc ACPI handles | |
161 | */ | |
78f81cc4 BD |
162 | |
163 | IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ | |
164 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ | |
165 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 166 | ); /* all others */ |
78f81cc4 BD |
167 | |
168 | IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ | |
169 | "^HKEY", /* R30, R31 */ | |
170 | "HKEY", /* all others */ | |
56b6aeb0 | 171 | ); /* 570 */ |
78f81cc4 | 172 | |
78f81cc4 | 173 | |
56b6aeb0 HMH |
174 | /************************************************************************* |
175 | * ACPI helpers | |
a8b7a662 HMH |
176 | */ |
177 | ||
1da177e4 LT |
178 | static int acpi_evalf(acpi_handle handle, |
179 | void *res, char *method, char *fmt, ...) | |
180 | { | |
181 | char *fmt0 = fmt; | |
78f81cc4 BD |
182 | struct acpi_object_list params; |
183 | union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; | |
184 | struct acpi_buffer result, *resultp; | |
185 | union acpi_object out_obj; | |
186 | acpi_status status; | |
187 | va_list ap; | |
188 | char res_type; | |
189 | int success; | |
190 | int quiet; | |
1da177e4 LT |
191 | |
192 | if (!*fmt) { | |
193 | printk(IBM_ERR "acpi_evalf() called with empty format\n"); | |
194 | return 0; | |
195 | } | |
196 | ||
197 | if (*fmt == 'q') { | |
198 | quiet = 1; | |
199 | fmt++; | |
200 | } else | |
201 | quiet = 0; | |
202 | ||
203 | res_type = *(fmt++); | |
204 | ||
205 | params.count = 0; | |
206 | params.pointer = &in_objs[0]; | |
207 | ||
208 | va_start(ap, fmt); | |
209 | while (*fmt) { | |
210 | char c = *(fmt++); | |
211 | switch (c) { | |
212 | case 'd': /* int */ | |
213 | in_objs[params.count].integer.value = va_arg(ap, int); | |
214 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
215 | break; | |
78f81cc4 | 216 | /* add more types as needed */ |
1da177e4 LT |
217 | default: |
218 | printk(IBM_ERR "acpi_evalf() called " | |
219 | "with invalid format character '%c'\n", c); | |
220 | return 0; | |
221 | } | |
222 | } | |
223 | va_end(ap); | |
224 | ||
78f81cc4 BD |
225 | if (res_type != 'v') { |
226 | result.length = sizeof(out_obj); | |
227 | result.pointer = &out_obj; | |
228 | resultp = &result; | |
229 | } else | |
230 | resultp = NULL; | |
1da177e4 | 231 | |
78f81cc4 | 232 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
233 | |
234 | switch (res_type) { | |
78f81cc4 | 235 | case 'd': /* int */ |
1da177e4 LT |
236 | if (res) |
237 | *(int *)res = out_obj.integer.value; | |
238 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
239 | break; | |
78f81cc4 | 240 | case 'v': /* void */ |
1da177e4 LT |
241 | success = status == AE_OK; |
242 | break; | |
78f81cc4 | 243 | /* add more types as needed */ |
1da177e4 LT |
244 | default: |
245 | printk(IBM_ERR "acpi_evalf() called " | |
246 | "with invalid format character '%c'\n", res_type); | |
247 | return 0; | |
248 | } | |
249 | ||
56b6aeb0 HMH |
250 | if (!success && !quiet) |
251 | printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", | |
252 | method, fmt0, status); | |
253 | ||
254 | return success; | |
255 | } | |
256 | ||
257 | static void __unused acpi_print_int(acpi_handle handle, char *method) | |
258 | { | |
259 | int i; | |
260 | ||
261 | if (acpi_evalf(handle, &i, method, "d")) | |
262 | printk(IBM_INFO "%s = 0x%x\n", method, i); | |
263 | else | |
264 | printk(IBM_ERR "error calling %s\n", method); | |
265 | } | |
266 | ||
267 | static int acpi_ec_read(int i, u8 * p) | |
268 | { | |
269 | int v; | |
270 | ||
271 | if (ecrd_handle) { | |
272 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
273 | return 0; | |
274 | *p = v; | |
275 | } else { | |
276 | if (ec_read(i, p) < 0) | |
277 | return 0; | |
278 | } | |
279 | ||
280 | return 1; | |
281 | } | |
282 | ||
283 | static int acpi_ec_write(int i, u8 v) | |
284 | { | |
285 | if (ecwr_handle) { | |
286 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
287 | return 0; | |
288 | } else { | |
289 | if (ec_write(i, v) < 0) | |
290 | return 0; | |
291 | } | |
292 | ||
293 | return 1; | |
294 | } | |
295 | ||
296 | static int _sta(acpi_handle handle) | |
297 | { | |
298 | int status; | |
299 | ||
300 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
301 | status = 0; | |
302 | ||
303 | return status; | |
304 | } | |
305 | ||
c9bea99c HMH |
306 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
307 | { | |
308 | if (!cmos_handle) | |
309 | return -ENXIO; | |
310 | ||
311 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
312 | return -EIO; | |
313 | ||
314 | return 0; | |
315 | } | |
316 | ||
56b6aeb0 HMH |
317 | /************************************************************************* |
318 | * ACPI device model | |
319 | */ | |
320 | ||
8d376cd6 | 321 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
322 | acpi_handle *handle, acpi_handle parent, |
323 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
324 | { |
325 | int i; | |
326 | acpi_status status; | |
327 | ||
5ae930e6 HMH |
328 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
329 | name); | |
330 | ||
56b6aeb0 HMH |
331 | for (i = 0; i < num_paths; i++) { |
332 | status = acpi_get_handle(parent, paths[i], handle); | |
333 | if (ACPI_SUCCESS(status)) { | |
334 | *path = paths[i]; | |
5ae930e6 HMH |
335 | dbg_printk(TPACPI_DBG_INIT, |
336 | "Found ACPI handle %s for %s\n", | |
337 | *path, name); | |
56b6aeb0 HMH |
338 | return; |
339 | } | |
340 | } | |
341 | ||
5ae930e6 HMH |
342 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
343 | name); | |
56b6aeb0 HMH |
344 | *handle = NULL; |
345 | } | |
346 | ||
8d376cd6 | 347 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
348 | { |
349 | struct ibm_struct *ibm = data; | |
350 | ||
8fef502e HMH |
351 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
352 | return; | |
353 | ||
8d376cd6 | 354 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
355 | return; |
356 | ||
8d376cd6 | 357 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
358 | } |
359 | ||
8d376cd6 | 360 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
361 | { |
362 | acpi_status status; | |
5ae930e6 | 363 | int rc; |
56b6aeb0 | 364 | |
8d376cd6 HMH |
365 | BUG_ON(!ibm->acpi); |
366 | ||
367 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
368 | return 0; |
369 | ||
5ae930e6 | 370 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
371 | "setting up ACPI notify for %s\n", ibm->name); |
372 | ||
5ae930e6 HMH |
373 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
374 | if (rc < 0) { | |
375 | printk(IBM_ERR "acpi_bus_get_device(%s) failed: %d\n", | |
376 | ibm->name, rc); | |
56b6aeb0 HMH |
377 | return -ENODEV; |
378 | } | |
379 | ||
8d376cd6 HMH |
380 | acpi_driver_data(ibm->acpi->device) = ibm; |
381 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
643f12db HMH |
382 | IBM_ACPI_EVENT_PREFIX, |
383 | ibm->name); | |
56b6aeb0 | 384 | |
8d376cd6 HMH |
385 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
386 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
387 | if (ACPI_FAILURE(status)) { |
388 | if (status == AE_ALREADY_EXISTS) { | |
389 | printk(IBM_NOTICE "another device driver is already handling %s events\n", | |
390 | ibm->name); | |
391 | } else { | |
392 | printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", | |
393 | ibm->name, status); | |
394 | } | |
395 | return -ENODEV; | |
396 | } | |
8d376cd6 | 397 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
398 | return 0; |
399 | } | |
400 | ||
8d376cd6 | 401 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
402 | { |
403 | return 0; | |
404 | } | |
405 | ||
6700121b | 406 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 407 | { |
5ae930e6 | 408 | int rc; |
56b6aeb0 | 409 | |
fe08bc4b HMH |
410 | dbg_printk(TPACPI_DBG_INIT, |
411 | "registering %s as an ACPI driver\n", ibm->name); | |
412 | ||
8d376cd6 HMH |
413 | BUG_ON(!ibm->acpi); |
414 | ||
415 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
416 | if (!ibm->acpi->driver) { | |
5fba344c HMH |
417 | printk(IBM_ERR "kzalloc(ibm->driver) failed\n"); |
418 | return -ENOMEM; | |
56b6aeb0 HMH |
419 | } |
420 | ||
8d376cd6 HMH |
421 | sprintf(ibm->acpi->driver->name, "%s_%s", IBM_NAME, ibm->name); |
422 | ibm->acpi->driver->ids = ibm->acpi->hid; | |
1ba90e3a | 423 | |
8d376cd6 | 424 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 425 | |
5ae930e6 HMH |
426 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
427 | if (rc < 0) { | |
56b6aeb0 | 428 | printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 429 | ibm->name, rc); |
8d376cd6 HMH |
430 | kfree(ibm->acpi->driver); |
431 | ibm->acpi->driver = NULL; | |
5ae930e6 | 432 | } else if (!rc) |
8d376cd6 | 433 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 434 | |
5ae930e6 | 435 | return rc; |
56b6aeb0 HMH |
436 | } |
437 | ||
438 | ||
439 | /**************************************************************************** | |
440 | **************************************************************************** | |
441 | * | |
442 | * Procfs Helpers | |
443 | * | |
444 | **************************************************************************** | |
445 | ****************************************************************************/ | |
446 | ||
8d376cd6 HMH |
447 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
448 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
449 | { |
450 | struct ibm_struct *ibm = data; | |
451 | int len; | |
452 | ||
453 | if (!ibm || !ibm->read) | |
454 | return -EINVAL; | |
455 | ||
456 | len = ibm->read(page); | |
457 | if (len < 0) | |
458 | return len; | |
459 | ||
460 | if (len <= off + count) | |
461 | *eof = 1; | |
462 | *start = page + off; | |
463 | len -= off; | |
464 | if (len > count) | |
465 | len = count; | |
466 | if (len < 0) | |
467 | len = 0; | |
468 | ||
469 | return len; | |
470 | } | |
471 | ||
8d376cd6 HMH |
472 | static int dispatch_procfs_write(struct file *file, |
473 | const char __user * userbuf, | |
474 | unsigned long count, void *data) | |
56b6aeb0 HMH |
475 | { |
476 | struct ibm_struct *ibm = data; | |
477 | char *kernbuf; | |
478 | int ret; | |
479 | ||
480 | if (!ibm || !ibm->write) | |
481 | return -EINVAL; | |
482 | ||
483 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
484 | if (!kernbuf) | |
485 | return -ENOMEM; | |
1da177e4 | 486 | |
56b6aeb0 HMH |
487 | if (copy_from_user(kernbuf, userbuf, count)) { |
488 | kfree(kernbuf); | |
489 | return -EFAULT; | |
490 | } | |
1da177e4 | 491 | |
56b6aeb0 HMH |
492 | kernbuf[count] = 0; |
493 | strcat(kernbuf, ","); | |
494 | ret = ibm->write(kernbuf); | |
495 | if (ret == 0) | |
496 | ret = count; | |
1da177e4 | 497 | |
56b6aeb0 HMH |
498 | kfree(kernbuf); |
499 | ||
500 | return ret; | |
1da177e4 LT |
501 | } |
502 | ||
503 | static char *next_cmd(char **cmds) | |
504 | { | |
505 | char *start = *cmds; | |
506 | char *end; | |
507 | ||
508 | while ((end = strchr(start, ',')) && end == start) | |
509 | start = end + 1; | |
510 | ||
511 | if (!end) | |
512 | return NULL; | |
513 | ||
514 | *end = 0; | |
515 | *cmds = end + 1; | |
516 | return start; | |
517 | } | |
518 | ||
56b6aeb0 | 519 | |
54ae1501 HMH |
520 | /**************************************************************************** |
521 | **************************************************************************** | |
522 | * | |
7f5d1cd6 | 523 | * Device model: input, hwmon and platform |
54ae1501 HMH |
524 | * |
525 | **************************************************************************** | |
526 | ****************************************************************************/ | |
527 | ||
94954cc6 | 528 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 529 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 530 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 531 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 532 | static struct mutex tpacpi_inputdev_send_mutex; |
54ae1501 | 533 | |
e295e850 HMH |
534 | |
535 | static int tpacpi_resume_handler(struct platform_device *pdev) | |
536 | { | |
537 | struct ibm_struct *ibm, *itmp; | |
538 | ||
539 | list_for_each_entry_safe(ibm, itmp, | |
540 | &tpacpi_all_drivers, | |
541 | all_drivers) { | |
542 | if (ibm->resume) | |
543 | (ibm->resume)(); | |
544 | } | |
545 | ||
546 | return 0; | |
547 | } | |
548 | ||
54ae1501 HMH |
549 | static struct platform_driver tpacpi_pdriver = { |
550 | .driver = { | |
551 | .name = IBM_DRVR_NAME, | |
552 | .owner = THIS_MODULE, | |
553 | }, | |
e295e850 | 554 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
555 | }; |
556 | ||
7fd40029 HMH |
557 | static struct platform_driver tpacpi_hwmon_pdriver = { |
558 | .driver = { | |
559 | .name = IBM_HWMON_DRVR_NAME, | |
560 | .owner = THIS_MODULE, | |
561 | }, | |
562 | }; | |
54ae1501 | 563 | |
176750d6 HMH |
564 | /************************************************************************* |
565 | * thinkpad-acpi driver attributes | |
566 | */ | |
567 | ||
568 | /* interface_version --------------------------------------------------- */ | |
569 | static ssize_t tpacpi_driver_interface_version_show( | |
570 | struct device_driver *drv, | |
571 | char *buf) | |
572 | { | |
573 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); | |
574 | } | |
575 | ||
576 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
577 | tpacpi_driver_interface_version_show, NULL); | |
578 | ||
579 | /* debug_level --------------------------------------------------------- */ | |
580 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
581 | char *buf) | |
582 | { | |
583 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
584 | } | |
585 | ||
586 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
587 | const char *buf, size_t count) | |
588 | { | |
589 | unsigned long t; | |
176750d6 | 590 | |
7252374a | 591 | if (parse_strtoul(buf, 0xffff, &t)) |
176750d6 HMH |
592 | return -EINVAL; |
593 | ||
594 | dbg_level = t; | |
595 | ||
596 | return count; | |
597 | } | |
598 | ||
599 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
600 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
601 | ||
602 | /* version ------------------------------------------------------------- */ | |
603 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
604 | char *buf) | |
605 | { | |
606 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", IBM_DESC, IBM_VERSION); | |
607 | } | |
608 | ||
609 | static DRIVER_ATTR(version, S_IRUGO, | |
610 | tpacpi_driver_version_show, NULL); | |
611 | ||
612 | /* --------------------------------------------------------------------- */ | |
613 | ||
614 | static struct driver_attribute* tpacpi_driver_attributes[] = { | |
615 | &driver_attr_debug_level, &driver_attr_version, | |
616 | &driver_attr_interface_version, | |
617 | }; | |
618 | ||
619 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
620 | { | |
621 | int i, res; | |
622 | ||
623 | i = 0; | |
624 | res = 0; | |
625 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
626 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
627 | i++; | |
628 | } | |
629 | ||
630 | return res; | |
631 | } | |
632 | ||
633 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
634 | { | |
635 | int i; | |
636 | ||
637 | for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) | |
638 | driver_remove_file(drv, tpacpi_driver_attributes[i]); | |
639 | } | |
640 | ||
7252374a HMH |
641 | /************************************************************************* |
642 | * sysfs support helpers | |
643 | */ | |
644 | ||
645 | struct attribute_set_obj { | |
646 | struct attribute_set s; | |
647 | struct attribute *a; | |
648 | } __attribute__((packed)); | |
649 | ||
650 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
651 | const char* name) | |
652 | { | |
653 | struct attribute_set_obj *sobj; | |
654 | ||
655 | if (max_members == 0) | |
656 | return NULL; | |
657 | ||
658 | /* Allocates space for implicit NULL at the end too */ | |
659 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
660 | max_members * sizeof(struct attribute *), | |
661 | GFP_KERNEL); | |
662 | if (!sobj) | |
663 | return NULL; | |
664 | sobj->s.max_members = max_members; | |
665 | sobj->s.group.attrs = &sobj->a; | |
666 | sobj->s.group.name = name; | |
667 | ||
668 | return &sobj->s; | |
669 | } | |
670 | ||
671 | /* not multi-threaded safe, use it in a single thread per set */ | |
672 | static int add_to_attr_set(struct attribute_set* s, struct attribute *attr) | |
673 | { | |
674 | if (!s || !attr) | |
675 | return -EINVAL; | |
676 | ||
677 | if (s->members >= s->max_members) | |
678 | return -ENOMEM; | |
679 | ||
680 | s->group.attrs[s->members] = attr; | |
681 | s->members++; | |
682 | ||
683 | return 0; | |
684 | } | |
685 | ||
686 | static int add_many_to_attr_set(struct attribute_set* s, | |
687 | struct attribute **attr, | |
688 | unsigned int count) | |
689 | { | |
690 | int i, res; | |
691 | ||
692 | for (i = 0; i < count; i++) { | |
693 | res = add_to_attr_set(s, attr[i]); | |
694 | if (res) | |
695 | return res; | |
696 | } | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
701 | static void delete_attr_set(struct attribute_set* s, struct kobject *kobj) | |
702 | { | |
703 | sysfs_remove_group(kobj, &s->group); | |
704 | destroy_attr_set(s); | |
705 | } | |
706 | ||
707 | static int parse_strtoul(const char *buf, | |
708 | unsigned long max, unsigned long *value) | |
709 | { | |
710 | char *endp; | |
711 | ||
32afbf07 HMH |
712 | while (*buf && isspace(*buf)) |
713 | buf++; | |
7252374a HMH |
714 | *value = simple_strtoul(buf, &endp, 0); |
715 | while (*endp && isspace(*endp)) | |
716 | endp++; | |
717 | if (*endp || *value > max) | |
718 | return -EINVAL; | |
719 | ||
720 | return 0; | |
721 | } | |
722 | ||
56b6aeb0 HMH |
723 | /**************************************************************************** |
724 | **************************************************************************** | |
725 | * | |
726 | * Subdrivers | |
727 | * | |
728 | **************************************************************************** | |
729 | ****************************************************************************/ | |
730 | ||
731 | /************************************************************************* | |
142cfc90 | 732 | * thinkpad-acpi init subdriver |
56b6aeb0 HMH |
733 | */ |
734 | ||
a5763f22 | 735 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
736 | { |
737 | printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); | |
738 | printk(IBM_INFO "%s\n", IBM_URL); | |
739 | ||
d5a2f2f1 HMH |
740 | printk(IBM_INFO "ThinkPad BIOS %s, EC %s\n", |
741 | (thinkpad_id.bios_version_str) ? | |
742 | thinkpad_id.bios_version_str : "unknown", | |
743 | (thinkpad_id.ec_version_str) ? | |
744 | thinkpad_id.ec_version_str : "unknown"); | |
745 | ||
746 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
747 | printk(IBM_INFO "%s %s\n", | |
748 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? | |
749 | "IBM" : ((thinkpad_id.vendor == | |
750 | PCI_VENDOR_ID_LENOVO) ? | |
751 | "Lenovo" : "Unknown vendor"), | |
752 | thinkpad_id.model_str); | |
3945ac36 | 753 | |
1da177e4 LT |
754 | return 0; |
755 | } | |
756 | ||
643f12db | 757 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
758 | { |
759 | int len = 0; | |
760 | ||
761 | len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); | |
762 | len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); | |
763 | ||
764 | return len; | |
765 | } | |
766 | ||
a5763f22 HMH |
767 | static struct ibm_struct thinkpad_acpi_driver_data = { |
768 | .name = "driver", | |
769 | .read = thinkpad_acpi_driver_read, | |
770 | }; | |
771 | ||
56b6aeb0 HMH |
772 | /************************************************************************* |
773 | * Hotkey subdriver | |
774 | */ | |
775 | ||
78f81cc4 | 776 | static int hotkey_orig_status; |
ae92bd17 | 777 | static u32 hotkey_orig_mask; |
9b010de5 | 778 | static u32 hotkey_all_mask; |
6a38abbf | 779 | static u32 hotkey_reserved_mask; |
b2c985e7 | 780 | static u32 hotkey_mask; |
6a38abbf | 781 | |
edf0e0e5 | 782 | static u16 *hotkey_keycode_map; |
78f81cc4 | 783 | |
94954cc6 | 784 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 785 | |
74941a69 HMH |
786 | static int hotkey_get_wlsw(int *status) |
787 | { | |
788 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
789 | return -EIO; | |
790 | return 0; | |
791 | } | |
792 | ||
b2c985e7 HMH |
793 | /* |
794 | * Call with hotkey_mutex held | |
795 | */ | |
796 | static int hotkey_mask_get(void) | |
797 | { | |
798 | if (tp_features.hotkey_mask) { | |
799 | if (!acpi_evalf(hkey_handle, &hotkey_mask, "DHKN", "d")) | |
800 | return -EIO; | |
801 | } | |
802 | ||
803 | return 0; | |
804 | } | |
805 | ||
806 | /* | |
807 | * Call with hotkey_mutex held | |
808 | */ | |
809 | static int hotkey_mask_set(u32 mask) | |
810 | { | |
811 | int i; | |
812 | int rc = 0; | |
813 | ||
814 | if (tp_features.hotkey_mask) { | |
815 | for (i = 0; i < 32; i++) { | |
816 | u32 m = 1 << i; | |
817 | if (!acpi_evalf(hkey_handle, | |
818 | NULL, "MHKM", "vdd", i + 1, | |
819 | !!(mask & m))) { | |
820 | rc = -EIO; | |
821 | break; | |
822 | } else { | |
823 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); | |
824 | } | |
825 | } | |
826 | ||
827 | /* hotkey_mask_get must be called unconditionally below */ | |
828 | if (!hotkey_mask_get() && !rc && hotkey_mask != mask) { | |
829 | printk(IBM_NOTICE | |
830 | "requested hot key mask 0x%08x, but " | |
831 | "firmware forced it to 0x%08x\n", | |
832 | mask, hotkey_mask); | |
833 | } | |
834 | } | |
835 | ||
836 | return rc; | |
837 | } | |
838 | ||
839 | static int hotkey_status_get(int *status) | |
840 | { | |
841 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
842 | return -EIO; | |
843 | ||
844 | return 0; | |
845 | } | |
846 | ||
847 | static int hotkey_status_set(int status) | |
848 | { | |
849 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
850 | return -EIO; | |
851 | ||
852 | return 0; | |
853 | } | |
854 | ||
a0416420 HMH |
855 | /* sysfs hotkey enable ------------------------------------------------- */ |
856 | static ssize_t hotkey_enable_show(struct device *dev, | |
857 | struct device_attribute *attr, | |
858 | char *buf) | |
859 | { | |
ae92bd17 | 860 | int res, status; |
a0416420 | 861 | |
b2c985e7 | 862 | res = hotkey_status_get(&status); |
a0416420 HMH |
863 | if (res) |
864 | return res; | |
865 | ||
866 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
867 | } | |
868 | ||
869 | static ssize_t hotkey_enable_store(struct device *dev, | |
870 | struct device_attribute *attr, | |
871 | const char *buf, size_t count) | |
872 | { | |
873 | unsigned long t; | |
b2c985e7 | 874 | int res; |
a0416420 HMH |
875 | |
876 | if (parse_strtoul(buf, 1, &t)) | |
877 | return -EINVAL; | |
878 | ||
b2c985e7 | 879 | res = hotkey_status_set(t); |
a0416420 HMH |
880 | |
881 | return (res) ? res : count; | |
882 | } | |
883 | ||
884 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 885 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
886 | hotkey_enable_show, hotkey_enable_store); |
887 | ||
888 | /* sysfs hotkey mask --------------------------------------------------- */ | |
889 | static ssize_t hotkey_mask_show(struct device *dev, | |
890 | struct device_attribute *attr, | |
891 | char *buf) | |
892 | { | |
b2c985e7 | 893 | int res; |
a0416420 | 894 | |
b2c985e7 HMH |
895 | if (mutex_lock_interruptible(&hotkey_mutex)) |
896 | return -ERESTARTSYS; | |
897 | res = hotkey_mask_get(); | |
898 | mutex_unlock(&hotkey_mutex); | |
a0416420 | 899 | |
b2c985e7 HMH |
900 | return (res)? |
901 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); | |
a0416420 HMH |
902 | } |
903 | ||
904 | static ssize_t hotkey_mask_store(struct device *dev, | |
905 | struct device_attribute *attr, | |
906 | const char *buf, size_t count) | |
907 | { | |
908 | unsigned long t; | |
b2c985e7 | 909 | int res; |
a0416420 | 910 | |
ae92bd17 | 911 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
912 | return -EINVAL; |
913 | ||
b2c985e7 HMH |
914 | if (mutex_lock_interruptible(&hotkey_mutex)) |
915 | return -ERESTARTSYS; | |
916 | ||
917 | res = hotkey_mask_set(t); | |
918 | mutex_unlock(&hotkey_mutex); | |
a0416420 HMH |
919 | |
920 | return (res) ? res : count; | |
921 | } | |
922 | ||
923 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 924 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
925 | hotkey_mask_show, hotkey_mask_store); |
926 | ||
927 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
928 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
929 | struct device_attribute *attr, | |
930 | char *buf) | |
931 | { | |
932 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
933 | } | |
934 | ||
935 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 936 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
937 | |
938 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
939 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
940 | struct device_attribute *attr, | |
941 | char *buf) | |
942 | { | |
ae92bd17 | 943 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
944 | } |
945 | ||
946 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 947 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 948 | |
9b010de5 HMH |
949 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
950 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
951 | struct device_attribute *attr, | |
952 | char *buf) | |
953 | { | |
954 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_all_mask); | |
955 | } | |
956 | ||
957 | static struct device_attribute dev_attr_hotkey_all_mask = | |
958 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
959 | ||
960 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
961 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
962 | struct device_attribute *attr, | |
963 | char *buf) | |
964 | { | |
965 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
966 | hotkey_all_mask & ~hotkey_reserved_mask); | |
967 | } | |
968 | ||
969 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
970 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
971 | hotkey_recommended_mask_show, NULL); | |
972 | ||
74941a69 HMH |
973 | /* sysfs hotkey radio_sw ----------------------------------------------- */ |
974 | static ssize_t hotkey_radio_sw_show(struct device *dev, | |
975 | struct device_attribute *attr, | |
976 | char *buf) | |
977 | { | |
978 | int res, s; | |
979 | res = hotkey_get_wlsw(&s); | |
980 | if (res < 0) | |
981 | return res; | |
982 | ||
983 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
984 | } | |
985 | ||
986 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
987 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
988 | ||
ff80f137 HMH |
989 | /* sysfs hotkey report_mode -------------------------------------------- */ |
990 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
991 | struct device_attribute *attr, | |
992 | char *buf) | |
993 | { | |
994 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
995 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
996 | } | |
997 | ||
998 | static struct device_attribute dev_attr_hotkey_report_mode = | |
999 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
1000 | ||
a0416420 HMH |
1001 | /* --------------------------------------------------------------------- */ |
1002 | ||
ff80f137 HMH |
1003 | static struct attribute *hotkey_attributes[] __initdata = { |
1004 | &dev_attr_hotkey_enable.attr, | |
1005 | &dev_attr_hotkey_report_mode.attr, | |
1006 | }; | |
1007 | ||
1008 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 HMH |
1009 | &dev_attr_hotkey_mask.attr, |
1010 | &dev_attr_hotkey_bios_enabled.attr, | |
1011 | &dev_attr_hotkey_bios_mask.attr, | |
9b010de5 HMH |
1012 | &dev_attr_hotkey_all_mask.attr, |
1013 | &dev_attr_hotkey_recommended_mask.attr, | |
a0416420 HMH |
1014 | }; |
1015 | ||
a5763f22 | 1016 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 1017 | { |
0f089147 HMH |
1018 | /* Requirements for changing the default keymaps: |
1019 | * | |
1020 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
1021 | * good reasons. Do not change them unless you have deep | |
1022 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
1023 | * the various ThinkPad models. The driver behaves | |
1024 | * differently for KEY_RESERVED: such keys have their | |
1025 | * hot key mask *unset* in mask_recommended, and also | |
1026 | * in the initial hot key mask programmed into the | |
1027 | * firmware at driver load time, which means the firm- | |
1028 | * ware may react very differently if you change them to | |
1029 | * something else; | |
1030 | * | |
1031 | * 2. You must be subscribed to the linux-thinkpad and | |
1032 | * ibm-acpi-devel mailing lists, and you should read the | |
1033 | * list archives since 2007 if you want to change the | |
1034 | * keymaps. This requirement exists so that you will | |
1035 | * know the past history of problems with the thinkpad- | |
1036 | * acpi driver keymaps, and also that you will be | |
1037 | * listening to any bug reports; | |
1038 | * | |
1039 | * 3. Do not send thinkpad-acpi specific patches directly to | |
1040 | * for merging, *ever*. Send them to the linux-acpi | |
1041 | * mailinglist for comments. Merging is to be done only | |
1042 | * through acpi-test and the ACPI maintainer. | |
1043 | * | |
1044 | * If the above is too much to ask, don't change the keymap. | |
1045 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
1046 | */ | |
edf0e0e5 HMH |
1047 | static u16 ibm_keycode_map[] __initdata = { |
1048 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1049 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
1050 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1051 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1052 | |
1053 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1054 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1055 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1056 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 HMH |
1057 | |
1058 | /* brightness: firmware always reacts to them, unless | |
1059 | * X.org did some tricks in the radeon BIOS scratch | |
1060 | * registers of *some* models */ | |
e927c08d | 1061 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 1062 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
1063 | |
1064 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 1065 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1066 | |
edf0e0e5 HMH |
1067 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1068 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1069 | |
1070 | /* Volume: firmware always react to it and reprograms | |
1071 | * the built-in *extra* mixer. Never map it to control | |
1072 | * another mixer by default. */ | |
e927c08d HMH |
1073 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1074 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1075 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1076 | |
edf0e0e5 | 1077 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1078 | |
edf0e0e5 HMH |
1079 | /* (assignments unknown, please report if found) */ |
1080 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1081 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1082 | }; | |
1083 | static u16 lenovo_keycode_map[] __initdata = { | |
1084 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1085 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
1086 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
1087 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
1088 | |
1089 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
1090 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
1091 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
1092 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 1093 | |
56a185b4 | 1094 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
56a185b4 | 1095 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 | 1096 | |
edf0e0e5 | 1097 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 1098 | |
edf0e0e5 HMH |
1099 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
1100 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
1101 | |
1102 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
1103 | * react to it and reprograms the built-in *extra* mixer. | |
1104 | * Never map it to control another mixer by default. | |
1105 | * | |
1106 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
1107 | * these over the regular keyboard, so these are no-ops, | |
1108 | * but there are still weird bugs re. MUTE, so do not | |
1109 | * change unless you get test reports from all Lenovo | |
1110 | * models. May cause the BIOS to interfere with the | |
1111 | * HDA mixer. | |
1112 | */ | |
e927c08d HMH |
1113 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
1114 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
1115 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 1116 | |
edf0e0e5 | 1117 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 1118 | |
edf0e0e5 HMH |
1119 | /* (assignments unknown, please report if found) */ |
1120 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1121 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
1122 | }; | |
1123 | ||
1124 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
1125 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
1126 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
1127 | ||
6a38abbf | 1128 | int res, i; |
74941a69 | 1129 | int status; |
1b6521dc | 1130 | int hkeyv; |
b86c4722 | 1131 | |
fe08bc4b HMH |
1132 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
1133 | ||
6a38abbf HMH |
1134 | BUG_ON(!tpacpi_inputdev); |
1135 | ||
8d376cd6 | 1136 | IBM_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 1137 | mutex_init(&hotkey_mutex); |
5fba344c | 1138 | |
56b6aeb0 | 1139 | /* hotkey not supported on 570 */ |
d8fd94d9 | 1140 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 1141 | |
fe08bc4b | 1142 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 1143 | str_supported(tp_features.hotkey)); |
fe08bc4b | 1144 | |
d8fd94d9 | 1145 | if (tp_features.hotkey) { |
ff80f137 | 1146 | hotkey_dev_attributes = create_attr_set(8, NULL); |
a0416420 HMH |
1147 | if (!hotkey_dev_attributes) |
1148 | return -ENOMEM; | |
ff80f137 HMH |
1149 | res = add_many_to_attr_set(hotkey_dev_attributes, |
1150 | hotkey_attributes, | |
1151 | ARRAY_SIZE(hotkey_attributes)); | |
a0416420 HMH |
1152 | if (res) |
1153 | return res; | |
1154 | ||
56b6aeb0 | 1155 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1b6521dc HMH |
1156 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
1157 | for HKEY interface version 0x100 */ | |
1158 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
1159 | if ((hkeyv >> 8) != 1) { | |
1160 | printk(IBM_ERR "unknown version of the " | |
1161 | "HKEY interface: 0x%x\n", hkeyv); | |
1162 | printk(IBM_ERR "please report this to %s\n", | |
1163 | IBM_MAIL); | |
1164 | } else { | |
1165 | /* | |
1166 | * MHKV 0x100 in A31, R40, R40e, | |
1167 | * T4x, X31, and later | |
1168 | * */ | |
1169 | tp_features.hotkey_mask = 1; | |
1170 | } | |
1171 | } | |
56b6aeb0 | 1172 | |
fe08bc4b | 1173 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 1174 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 1175 | |
9b010de5 | 1176 | if (tp_features.hotkey_mask) { |
9b010de5 | 1177 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, |
1b6521dc HMH |
1178 | "MHKA", "qd")) { |
1179 | printk(IBM_ERR | |
1180 | "missing MHKA handler, " | |
1181 | "please report this to %s\n", | |
1182 | IBM_MAIL); | |
9b010de5 | 1183 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ |
1b6521dc | 1184 | } |
9b010de5 HMH |
1185 | } |
1186 | ||
b2c985e7 | 1187 | res = hotkey_status_get(&hotkey_orig_status); |
a0416420 | 1188 | if (!res && tp_features.hotkey_mask) { |
b2c985e7 HMH |
1189 | res = hotkey_mask_get(); |
1190 | hotkey_orig_mask = hotkey_mask; | |
1191 | if (!res) { | |
1192 | res = add_many_to_attr_set( | |
1193 | hotkey_dev_attributes, | |
1194 | hotkey_mask_attributes, | |
1195 | ARRAY_SIZE(hotkey_mask_attributes)); | |
1196 | } | |
a0416420 | 1197 | } |
74941a69 HMH |
1198 | |
1199 | /* Not all thinkpads have a hardware radio switch */ | |
1200 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
1201 | tp_features.hotkey_wlsw = 1; | |
1202 | printk(IBM_INFO | |
1203 | "radio switch found; radios are %s\n", | |
1204 | enabled(status, 0)); | |
1205 | res = add_to_attr_set(hotkey_dev_attributes, | |
1206 | &dev_attr_hotkey_radio_sw.attr); | |
1207 | } | |
1208 | ||
a0416420 HMH |
1209 | if (!res) |
1210 | res = register_attr_set_with_sysfs( | |
1211 | hotkey_dev_attributes, | |
1212 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
1213 | if (res) |
1214 | return res; | |
6a38abbf | 1215 | |
edf0e0e5 HMH |
1216 | /* Set up key map */ |
1217 | ||
1218 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, | |
1219 | GFP_KERNEL); | |
1220 | if (!hotkey_keycode_map) { | |
1221 | printk(IBM_ERR "failed to allocate memory for key map\n"); | |
1222 | return -ENOMEM; | |
1223 | } | |
1224 | ||
1225 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
1226 | dbg_printk(TPACPI_DBG_INIT, | |
1227 | "using Lenovo default hot key map\n"); | |
1228 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
1229 | TPACPI_HOTKEY_MAP_SIZE); | |
1230 | } else { | |
1231 | dbg_printk(TPACPI_DBG_INIT, | |
1232 | "using IBM default hot key map\n"); | |
1233 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
1234 | TPACPI_HOTKEY_MAP_SIZE); | |
1235 | } | |
1236 | ||
6a38abbf HMH |
1237 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
1238 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
1239 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
edf0e0e5 HMH |
1240 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
1241 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
1242 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
1243 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
6a38abbf HMH |
1244 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
1245 | set_bit(hotkey_keycode_map[i], | |
1246 | tpacpi_inputdev->keybit); | |
1247 | } else { | |
1248 | if (i < sizeof(hotkey_reserved_mask)*8) | |
1249 | hotkey_reserved_mask |= 1 << i; | |
1250 | } | |
1251 | } | |
1252 | ||
5c29d58f HMH |
1253 | if (tp_features.hotkey_wlsw) { |
1254 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
1255 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
1256 | } | |
1257 | ||
1a343760 HMH |
1258 | dbg_printk(TPACPI_DBG_INIT, |
1259 | "enabling hot key handling\n"); | |
b2c985e7 HMH |
1260 | res = hotkey_status_set(1); |
1261 | if (res) | |
1262 | return res; | |
1263 | res = hotkey_mask_set((hotkey_all_mask & ~hotkey_reserved_mask) | |
1a343760 HMH |
1264 | | hotkey_orig_mask); |
1265 | if (res) | |
1266 | return res; | |
ff80f137 HMH |
1267 | |
1268 | dbg_printk(TPACPI_DBG_INIT, | |
1269 | "legacy hot key reporting over procfs %s\n", | |
1270 | (hotkey_report_mode < 2) ? | |
1271 | "enabled" : "disabled"); | |
56b6aeb0 HMH |
1272 | } |
1273 | ||
d8fd94d9 | 1274 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
1275 | } |
1276 | ||
1277 | static void hotkey_exit(void) | |
1278 | { | |
d8fd94d9 | 1279 | if (tp_features.hotkey) { |
b2c985e7 HMH |
1280 | dbg_printk(TPACPI_DBG_EXIT, "restoring original hot key mask\n"); |
1281 | /* no short-circuit boolean operator below! */ | |
1282 | if ((hotkey_mask_set(hotkey_orig_mask) | | |
1283 | hotkey_status_set(hotkey_orig_status)) != 0) | |
1284 | printk(IBM_ERR "failed to restore hot key mask to BIOS defaults\n"); | |
5fba344c | 1285 | } |
a0416420 HMH |
1286 | |
1287 | if (hotkey_dev_attributes) { | |
1288 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
1289 | hotkey_dev_attributes = NULL; | |
1290 | } | |
56b6aeb0 HMH |
1291 | } |
1292 | ||
6a38abbf HMH |
1293 | static void tpacpi_input_send_key(unsigned int scancode, |
1294 | unsigned int keycode) | |
1295 | { | |
1296 | if (keycode != KEY_RESERVED) { | |
8523ed6f HMH |
1297 | mutex_lock(&tpacpi_inputdev_send_mutex); |
1298 | ||
6a38abbf HMH |
1299 | input_report_key(tpacpi_inputdev, keycode, 1); |
1300 | if (keycode == KEY_UNKNOWN) | |
1301 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1302 | scancode); | |
1303 | input_sync(tpacpi_inputdev); | |
1304 | ||
1305 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1306 | if (keycode == KEY_UNKNOWN) | |
1307 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1308 | scancode); | |
1309 | input_sync(tpacpi_inputdev); | |
8523ed6f HMH |
1310 | |
1311 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
6a38abbf HMH |
1312 | } |
1313 | } | |
1314 | ||
5c29d58f HMH |
1315 | static void tpacpi_input_send_radiosw(void) |
1316 | { | |
1317 | int wlsw; | |
1318 | ||
8523ed6f HMH |
1319 | mutex_lock(&tpacpi_inputdev_send_mutex); |
1320 | ||
f4e1e43c | 1321 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { |
5c29d58f HMH |
1322 | input_report_switch(tpacpi_inputdev, |
1323 | SW_RADIO, !!wlsw); | |
f4e1e43c HMH |
1324 | input_sync(tpacpi_inputdev); |
1325 | } | |
8523ed6f HMH |
1326 | |
1327 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
5c29d58f HMH |
1328 | } |
1329 | ||
56b6aeb0 HMH |
1330 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
1331 | { | |
6a38abbf HMH |
1332 | u32 hkey; |
1333 | unsigned int keycode, scancode; | |
3eea123d | 1334 | int send_acpi_ev; |
3e5ce914 | 1335 | int ignore_acpi_ev; |
3eea123d HMH |
1336 | |
1337 | if (event != 0x80) { | |
1338 | printk(IBM_ERR "unknown HKEY notification event %d\n", event); | |
1339 | /* forward it to userspace, maybe it knows how to handle it */ | |
1340 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, | |
1341 | ibm->acpi->device->dev.bus_id, | |
1342 | event, 0); | |
1343 | return; | |
1344 | } | |
1345 | ||
1346 | while (1) { | |
1347 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
1348 | printk(IBM_ERR "failed to retrieve HKEY event\n"); | |
1349 | return; | |
1350 | } | |
1351 | ||
1352 | if (hkey == 0) { | |
1353 | /* queue empty */ | |
1354 | return; | |
1355 | } | |
1356 | ||
1357 | send_acpi_ev = 0; | |
3e5ce914 | 1358 | ignore_acpi_ev = 0; |
56b6aeb0 | 1359 | |
ff80f137 HMH |
1360 | switch (hkey >> 12) { |
1361 | case 1: | |
1362 | /* 0x1000-0x1FFF: key presses */ | |
1363 | scancode = hkey & 0xfff; | |
1364 | if (scancode > 0 && scancode < 0x21) { | |
1365 | scancode--; | |
1366 | keycode = hotkey_keycode_map[scancode]; | |
1367 | tpacpi_input_send_key(scancode, keycode); | |
1368 | } else { | |
1369 | printk(IBM_ERR | |
1370 | "hotkey 0x%04x out of range for keyboard map\n", | |
1371 | hkey); | |
1372 | send_acpi_ev = 1; | |
1373 | } | |
1374 | break; | |
1375 | case 5: | |
1376 | /* 0x5000-0x5FFF: LID */ | |
1377 | /* we don't handle it through this path, just | |
1378 | * eat up known LID events */ | |
1379 | if (hkey != 0x5001 && hkey != 0x5002) { | |
1380 | printk(IBM_ERR | |
3eea123d HMH |
1381 | "unknown LID-related HKEY event: 0x%04x\n", |
1382 | hkey); | |
ff80f137 | 1383 | send_acpi_ev = 1; |
3e5ce914 HMH |
1384 | } else { |
1385 | ignore_acpi_ev = 1; | |
ff80f137 HMH |
1386 | } |
1387 | break; | |
1388 | case 7: | |
1389 | /* 0x7000-0x7FFF: misc */ | |
1390 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
1391 | tpacpi_input_send_radiosw(); | |
6a38abbf | 1392 | break; |
6a38abbf | 1393 | } |
ff80f137 HMH |
1394 | /* fallthrough to default */ |
1395 | default: | |
1396 | /* case 2: dock-related */ | |
1397 | /* 0x2305 - T43 waking up due to bay lever eject while aslept */ | |
1398 | /* case 3: ultra-bay related. maybe bay in dock? */ | |
1399 | /* 0x3003 - T43 after wake up by bay lever eject (0x2305) */ | |
1400 | printk(IBM_NOTICE "unhandled HKEY event 0x%04x\n", hkey); | |
1401 | send_acpi_ev = 1; | |
6a38abbf | 1402 | } |
ff80f137 | 1403 | |
3eea123d | 1404 | /* Legacy events */ |
3e5ce914 | 1405 | if (!ignore_acpi_ev && (send_acpi_ev || hotkey_report_mode < 2)) { |
3eea123d | 1406 | acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey); |
3e5ce914 | 1407 | } |
ff80f137 | 1408 | |
3eea123d | 1409 | /* netlink events */ |
3e5ce914 | 1410 | if (!ignore_acpi_ev && send_acpi_ev) { |
3eea123d HMH |
1411 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
1412 | ibm->acpi->device->dev.bus_id, | |
1413 | event, hkey); | |
1414 | } | |
56b6aeb0 HMH |
1415 | } |
1416 | } | |
1417 | ||
5c29d58f HMH |
1418 | static void hotkey_resume(void) |
1419 | { | |
b2c985e7 HMH |
1420 | if (hotkey_mask_get()) |
1421 | printk(IBM_ERR "error while trying to read hot key mask from firmware\n"); | |
5c29d58f HMH |
1422 | tpacpi_input_send_radiosw(); |
1423 | } | |
1424 | ||
a0416420 | 1425 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 1426 | static int hotkey_read(char *p) |
1da177e4 | 1427 | { |
ae92bd17 | 1428 | int res, status; |
1da177e4 LT |
1429 | int len = 0; |
1430 | ||
d8fd94d9 | 1431 | if (!tp_features.hotkey) { |
78f81cc4 BD |
1432 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1433 | return len; | |
1434 | } | |
1435 | ||
fc589a3c HMH |
1436 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1437 | return -ERESTARTSYS; | |
b2c985e7 HMH |
1438 | res = hotkey_status_get(&status); |
1439 | if (!res) | |
1440 | res = hotkey_mask_get(); | |
40ca9fdf | 1441 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
1442 | if (res) |
1443 | return res; | |
1da177e4 LT |
1444 | |
1445 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 1446 | if (tp_features.hotkey_mask) { |
b2c985e7 | 1447 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
1da177e4 LT |
1448 | len += sprintf(p + len, |
1449 | "commands:\tenable, disable, reset, <mask>\n"); | |
1450 | } else { | |
1451 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
1452 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
1453 | } | |
1454 | ||
1455 | return len; | |
1456 | } | |
1457 | ||
78f81cc4 | 1458 | static int hotkey_write(char *buf) |
1da177e4 | 1459 | { |
ae92bd17 HMH |
1460 | int res, status; |
1461 | u32 mask; | |
1da177e4 | 1462 | char *cmd; |
1da177e4 | 1463 | |
d8fd94d9 | 1464 | if (!tp_features.hotkey) |
1da177e4 LT |
1465 | return -ENODEV; |
1466 | ||
fc589a3c HMH |
1467 | if (mutex_lock_interruptible(&hotkey_mutex)) |
1468 | return -ERESTARTSYS; | |
40ca9fdf | 1469 | |
b2c985e7 HMH |
1470 | status = -1; |
1471 | mask = hotkey_mask; | |
78f81cc4 | 1472 | |
40ca9fdf | 1473 | res = 0; |
1da177e4 LT |
1474 | while ((cmd = next_cmd(&buf))) { |
1475 | if (strlencmp(cmd, "enable") == 0) { | |
1476 | status = 1; | |
1477 | } else if (strlencmp(cmd, "disable") == 0) { | |
1478 | status = 0; | |
1479 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
1480 | status = hotkey_orig_status; |
1481 | mask = hotkey_orig_mask; | |
1da177e4 LT |
1482 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
1483 | /* mask set */ | |
1484 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
1485 | /* mask set */ | |
40ca9fdf HMH |
1486 | } else { |
1487 | res = -EINVAL; | |
1488 | goto errexit; | |
1489 | } | |
1da177e4 | 1490 | } |
b2c985e7 HMH |
1491 | if (status != -1) |
1492 | res = hotkey_status_set(status); | |
1da177e4 | 1493 | |
b2c985e7 HMH |
1494 | if (!res && mask != hotkey_mask) |
1495 | res = hotkey_mask_set(mask); | |
1da177e4 | 1496 | |
40ca9fdf HMH |
1497 | errexit: |
1498 | mutex_unlock(&hotkey_mutex); | |
1499 | return res; | |
78f81cc4 | 1500 | } |
1da177e4 | 1501 | |
1ba90e3a TR |
1502 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
1503 | {IBM_HKEY_HID, 0}, | |
1504 | {"", 0}, | |
1505 | }; | |
1506 | ||
8d376cd6 | 1507 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 1508 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
1509 | .notify = hotkey_notify, |
1510 | .handle = &hkey_handle, | |
1511 | .type = ACPI_DEVICE_NOTIFY, | |
1512 | }; | |
1513 | ||
a5763f22 HMH |
1514 | static struct ibm_struct hotkey_driver_data = { |
1515 | .name = "hotkey", | |
a5763f22 HMH |
1516 | .read = hotkey_read, |
1517 | .write = hotkey_write, | |
1518 | .exit = hotkey_exit, | |
5c29d58f | 1519 | .resume = hotkey_resume, |
8d376cd6 | 1520 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
1521 | }; |
1522 | ||
56b6aeb0 HMH |
1523 | /************************************************************************* |
1524 | * Bluetooth subdriver | |
1525 | */ | |
1da177e4 | 1526 | |
d3a6ade4 HMH |
1527 | /* sysfs bluetooth enable ---------------------------------------------- */ |
1528 | static ssize_t bluetooth_enable_show(struct device *dev, | |
1529 | struct device_attribute *attr, | |
1530 | char *buf) | |
1531 | { | |
1532 | int status; | |
1533 | ||
1534 | status = bluetooth_get_radiosw(); | |
1535 | if (status < 0) | |
1536 | return status; | |
1537 | ||
1538 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
1539 | } | |
1540 | ||
1541 | static ssize_t bluetooth_enable_store(struct device *dev, | |
1542 | struct device_attribute *attr, | |
1543 | const char *buf, size_t count) | |
1544 | { | |
1545 | unsigned long t; | |
1546 | int res; | |
1547 | ||
1548 | if (parse_strtoul(buf, 1, &t)) | |
1549 | return -EINVAL; | |
1550 | ||
1551 | res = bluetooth_set_radiosw(t); | |
1552 | ||
1553 | return (res) ? res : count; | |
1554 | } | |
1555 | ||
1556 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 1557 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
1558 | bluetooth_enable_show, bluetooth_enable_store); |
1559 | ||
1560 | /* --------------------------------------------------------------------- */ | |
1561 | ||
1562 | static struct attribute *bluetooth_attributes[] = { | |
1563 | &dev_attr_bluetooth_enable.attr, | |
1564 | NULL | |
1565 | }; | |
1566 | ||
1567 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
1568 | .attrs = bluetooth_attributes, |
1569 | }; | |
1570 | ||
a5763f22 | 1571 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 1572 | { |
d3a6ade4 | 1573 | int res; |
d6fdd1e9 HMH |
1574 | int status = 0; |
1575 | ||
fe08bc4b HMH |
1576 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
1577 | ||
8d376cd6 | 1578 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1579 | |
78f81cc4 BD |
1580 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1581 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 1582 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
1583 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
1584 | ||
1585 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
1586 | str_supported(tp_features.bluetooth), | |
1587 | status); | |
1588 | ||
d3a6ade4 HMH |
1589 | if (tp_features.bluetooth) { |
1590 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
1591 | /* no bluetooth hardware present in system */ | |
1592 | tp_features.bluetooth = 0; | |
1593 | dbg_printk(TPACPI_DBG_INIT, | |
1594 | "bluetooth hardware not installed\n"); | |
1595 | } else { | |
1596 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
1597 | &bluetooth_attr_group); | |
1598 | if (res) | |
1599 | return res; | |
1600 | } | |
d6fdd1e9 | 1601 | } |
fe08bc4b | 1602 | |
d8fd94d9 | 1603 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
1604 | } |
1605 | ||
d3a6ade4 HMH |
1606 | static void bluetooth_exit(void) |
1607 | { | |
1608 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
1609 | &bluetooth_attr_group); | |
1610 | } | |
1611 | ||
d6fdd1e9 | 1612 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
1613 | { |
1614 | int status; | |
1615 | ||
d6fdd1e9 HMH |
1616 | if (!tp_features.bluetooth) |
1617 | return -ENODEV; | |
1da177e4 | 1618 | |
d6fdd1e9 HMH |
1619 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
1620 | return -EIO; | |
1621 | ||
1622 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
1623 | } | |
1624 | ||
1625 | static int bluetooth_set_radiosw(int radio_on) | |
1626 | { | |
1627 | int status; | |
1628 | ||
1629 | if (!tp_features.bluetooth) | |
1630 | return -ENODEV; | |
1631 | ||
1632 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
1633 | return -EIO; | |
1634 | if (radio_on) | |
1635 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
1636 | else | |
1637 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
1638 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
1639 | return -EIO; | |
1640 | ||
1641 | return 0; | |
1da177e4 LT |
1642 | } |
1643 | ||
d3a6ade4 | 1644 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 1645 | static int bluetooth_read(char *p) |
1da177e4 LT |
1646 | { |
1647 | int len = 0; | |
d6fdd1e9 | 1648 | int status = bluetooth_get_radiosw(); |
1da177e4 | 1649 | |
d8fd94d9 | 1650 | if (!tp_features.bluetooth) |
1da177e4 | 1651 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 1652 | else { |
d6fdd1e9 HMH |
1653 | len += sprintf(p + len, "status:\t\t%s\n", |
1654 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
1655 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1656 | } | |
1657 | ||
1658 | return len; | |
1659 | } | |
1660 | ||
78f81cc4 | 1661 | static int bluetooth_write(char *buf) |
1da177e4 | 1662 | { |
1da177e4 | 1663 | char *cmd; |
1da177e4 | 1664 | |
d8fd94d9 | 1665 | if (!tp_features.bluetooth) |
78f81cc4 | 1666 | return -ENODEV; |
1da177e4 LT |
1667 | |
1668 | while ((cmd = next_cmd(&buf))) { | |
1669 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1670 | bluetooth_set_radiosw(1); |
1da177e4 | 1671 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1672 | bluetooth_set_radiosw(0); |
1da177e4 LT |
1673 | } else |
1674 | return -EINVAL; | |
1da177e4 LT |
1675 | } |
1676 | ||
1da177e4 LT |
1677 | return 0; |
1678 | } | |
1679 | ||
a5763f22 HMH |
1680 | static struct ibm_struct bluetooth_driver_data = { |
1681 | .name = "bluetooth", | |
1682 | .read = bluetooth_read, | |
1683 | .write = bluetooth_write, | |
d3a6ade4 | 1684 | .exit = bluetooth_exit, |
a5763f22 HMH |
1685 | }; |
1686 | ||
56b6aeb0 HMH |
1687 | /************************************************************************* |
1688 | * Wan subdriver | |
1689 | */ | |
1690 | ||
d3a6ade4 HMH |
1691 | /* sysfs wan enable ---------------------------------------------------- */ |
1692 | static ssize_t wan_enable_show(struct device *dev, | |
1693 | struct device_attribute *attr, | |
1694 | char *buf) | |
1695 | { | |
1696 | int status; | |
1697 | ||
1698 | status = wan_get_radiosw(); | |
1699 | if (status < 0) | |
1700 | return status; | |
1701 | ||
1702 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
1703 | } | |
1704 | ||
1705 | static ssize_t wan_enable_store(struct device *dev, | |
1706 | struct device_attribute *attr, | |
1707 | const char *buf, size_t count) | |
1708 | { | |
1709 | unsigned long t; | |
1710 | int res; | |
1711 | ||
1712 | if (parse_strtoul(buf, 1, &t)) | |
1713 | return -EINVAL; | |
1714 | ||
1715 | res = wan_set_radiosw(t); | |
1716 | ||
1717 | return (res) ? res : count; | |
1718 | } | |
1719 | ||
1720 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 1721 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
1722 | wan_enable_show, wan_enable_store); |
1723 | ||
1724 | /* --------------------------------------------------------------------- */ | |
1725 | ||
1726 | static struct attribute *wan_attributes[] = { | |
1727 | &dev_attr_wan_enable.attr, | |
1728 | NULL | |
1729 | }; | |
1730 | ||
1731 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
1732 | .attrs = wan_attributes, |
1733 | }; | |
1734 | ||
a5763f22 | 1735 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 1736 | { |
d3a6ade4 | 1737 | int res; |
d6fdd1e9 HMH |
1738 | int status = 0; |
1739 | ||
fe08bc4b HMH |
1740 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
1741 | ||
8d376cd6 | 1742 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1743 | |
d8fd94d9 | 1744 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
1745 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
1746 | ||
1747 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
1748 | str_supported(tp_features.wan), | |
1749 | status); | |
1750 | ||
d3a6ade4 HMH |
1751 | if (tp_features.wan) { |
1752 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
1753 | /* no wan hardware present in system */ | |
1754 | tp_features.wan = 0; | |
1755 | dbg_printk(TPACPI_DBG_INIT, | |
1756 | "wan hardware not installed\n"); | |
1757 | } else { | |
1758 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
1759 | &wan_attr_group); | |
1760 | if (res) | |
1761 | return res; | |
1762 | } | |
d6fdd1e9 | 1763 | } |
fe08bc4b | 1764 | |
d8fd94d9 | 1765 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
1766 | } |
1767 | ||
d3a6ade4 HMH |
1768 | static void wan_exit(void) |
1769 | { | |
1770 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
1771 | &wan_attr_group); | |
1772 | } | |
1773 | ||
d6fdd1e9 | 1774 | static int wan_get_radiosw(void) |
42adb53c JF |
1775 | { |
1776 | int status; | |
1777 | ||
d6fdd1e9 HMH |
1778 | if (!tp_features.wan) |
1779 | return -ENODEV; | |
42adb53c | 1780 | |
d6fdd1e9 HMH |
1781 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
1782 | return -EIO; | |
1783 | ||
1784 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
1785 | } | |
1786 | ||
1787 | static int wan_set_radiosw(int radio_on) | |
1788 | { | |
1789 | int status; | |
1790 | ||
1791 | if (!tp_features.wan) | |
1792 | return -ENODEV; | |
1793 | ||
1794 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
1795 | return -EIO; | |
1796 | if (radio_on) | |
1797 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
1798 | else | |
1799 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
1800 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
1801 | return -EIO; | |
1802 | ||
1803 | return 0; | |
42adb53c JF |
1804 | } |
1805 | ||
d3a6ade4 | 1806 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
1807 | static int wan_read(char *p) |
1808 | { | |
1809 | int len = 0; | |
d6fdd1e9 | 1810 | int status = wan_get_radiosw(); |
42adb53c | 1811 | |
d8fd94d9 | 1812 | if (!tp_features.wan) |
42adb53c | 1813 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 1814 | else { |
d6fdd1e9 HMH |
1815 | len += sprintf(p + len, "status:\t\t%s\n", |
1816 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
1817 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1818 | } | |
1819 | ||
1820 | return len; | |
1821 | } | |
1822 | ||
1823 | static int wan_write(char *buf) | |
1824 | { | |
42adb53c | 1825 | char *cmd; |
42adb53c | 1826 | |
d8fd94d9 | 1827 | if (!tp_features.wan) |
42adb53c JF |
1828 | return -ENODEV; |
1829 | ||
1830 | while ((cmd = next_cmd(&buf))) { | |
1831 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1832 | wan_set_radiosw(1); |
42adb53c | 1833 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1834 | wan_set_radiosw(0); |
42adb53c JF |
1835 | } else |
1836 | return -EINVAL; | |
42adb53c JF |
1837 | } |
1838 | ||
42adb53c JF |
1839 | return 0; |
1840 | } | |
1841 | ||
a5763f22 HMH |
1842 | static struct ibm_struct wan_driver_data = { |
1843 | .name = "wan", | |
1844 | .read = wan_read, | |
1845 | .write = wan_write, | |
d3a6ade4 | 1846 | .exit = wan_exit, |
92641177 | 1847 | .flags.experimental = 1, |
a5763f22 HMH |
1848 | }; |
1849 | ||
56b6aeb0 HMH |
1850 | /************************************************************************* |
1851 | * Video subdriver | |
1852 | */ | |
1853 | ||
9a8e1738 HMH |
1854 | static enum video_access_mode video_supported; |
1855 | static int video_orig_autosw; | |
78f81cc4 | 1856 | |
56b6aeb0 HMH |
1857 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
1858 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
1859 | "\\_SB.PCI0.VID0", /* 770e */ | |
1860 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
1861 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
1862 | ); /* R30, R31 */ | |
1863 | ||
1864 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
1865 | ||
a5763f22 | 1866 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 1867 | { |
78f81cc4 BD |
1868 | int ivga; |
1869 | ||
fe08bc4b HMH |
1870 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
1871 | ||
8d376cd6 HMH |
1872 | IBM_ACPIHANDLE_INIT(vid); |
1873 | IBM_ACPIHANDLE_INIT(vid2); | |
5fba344c | 1874 | |
78f81cc4 BD |
1875 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
1876 | /* G41, assume IVGA doesn't change */ | |
1877 | vid_handle = vid2_handle; | |
1878 | ||
1879 | if (!vid_handle) | |
1880 | /* video switching not supported on R30, R31 */ | |
efa27145 | 1881 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
1882 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
1883 | /* 570 */ | |
efa27145 | 1884 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
1885 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
1886 | /* 600e/x, 770e, 770x */ | |
efa27145 | 1887 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
1888 | else |
1889 | /* all others */ | |
efa27145 | 1890 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 1891 | |
fe08bc4b HMH |
1892 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
1893 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
1894 | video_supported); | |
1895 | ||
5fba344c | 1896 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
1897 | } |
1898 | ||
56b6aeb0 HMH |
1899 | static void video_exit(void) |
1900 | { | |
83f34724 HMH |
1901 | dbg_printk(TPACPI_DBG_EXIT, |
1902 | "restoring original video autoswitch mode\n"); | |
1903 | if (video_autosw_set(video_orig_autosw)) | |
1904 | printk(IBM_ERR "error while trying to restore original " | |
1905 | "video autoswitch mode\n"); | |
56b6aeb0 HMH |
1906 | } |
1907 | ||
83f34724 | 1908 | static int video_outputsw_get(void) |
1da177e4 LT |
1909 | { |
1910 | int status = 0; | |
1911 | int i; | |
1912 | ||
83f34724 HMH |
1913 | switch (video_supported) { |
1914 | case TPACPI_VIDEO_570: | |
1915 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
1916 | TP_ACPI_VIDEO_570_PHSCMD)) | |
1917 | return -EIO; | |
1918 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
1919 | break; | |
1920 | case TPACPI_VIDEO_770: | |
1921 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1922 | return -EIO; | |
1923 | if (i) | |
1924 | status |= TP_ACPI_VIDEO_S_LCD; | |
1925 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1926 | return -EIO; | |
1927 | if (i) | |
1928 | status |= TP_ACPI_VIDEO_S_CRT; | |
1929 | break; | |
1930 | case TPACPI_VIDEO_NEW: | |
1931 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
1932 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1933 | return -EIO; | |
1934 | if (i) | |
1935 | status |= TP_ACPI_VIDEO_S_CRT; | |
1936 | ||
1937 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
1938 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1939 | return -EIO; | |
1940 | if (i) | |
1941 | status |= TP_ACPI_VIDEO_S_LCD; | |
1942 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
1943 | return -EIO; | |
1944 | if (i) | |
1945 | status |= TP_ACPI_VIDEO_S_DVI; | |
1946 | break; | |
1947 | default: | |
1948 | return -ENOSYS; | |
78f81cc4 BD |
1949 | } |
1950 | ||
1951 | return status; | |
1952 | } | |
1da177e4 | 1953 | |
83f34724 | 1954 | static int video_outputsw_set(int status) |
78f81cc4 | 1955 | { |
83f34724 HMH |
1956 | int autosw; |
1957 | int res = 0; | |
1958 | ||
1959 | switch (video_supported) { | |
1960 | case TPACPI_VIDEO_570: | |
1961 | res = acpi_evalf(NULL, NULL, | |
1962 | "\\_SB.PHS2", "vdd", | |
1963 | TP_ACPI_VIDEO_570_PHS2CMD, | |
1964 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
1965 | break; | |
1966 | case TPACPI_VIDEO_770: | |
1967 | autosw = video_autosw_get(); | |
1968 | if (autosw < 0) | |
1969 | return autosw; | |
1da177e4 | 1970 | |
83f34724 HMH |
1971 | res = video_autosw_set(1); |
1972 | if (res) | |
1973 | return res; | |
1974 | res = acpi_evalf(vid_handle, NULL, | |
1975 | "ASWT", "vdd", status * 0x100, 0); | |
1976 | if (!autosw && video_autosw_set(autosw)) { | |
1977 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1978 | return -EIO; | |
1979 | } | |
1980 | break; | |
1981 | case TPACPI_VIDEO_NEW: | |
1982 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
1983 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
1984 | break; | |
1985 | default: | |
1986 | return -ENOSYS; | |
1987 | } | |
1da177e4 | 1988 | |
83f34724 | 1989 | return (res)? 0 : -EIO; |
1da177e4 LT |
1990 | } |
1991 | ||
83f34724 | 1992 | static int video_autosw_get(void) |
78f81cc4 | 1993 | { |
83f34724 | 1994 | int autosw = 0; |
78f81cc4 | 1995 | |
83f34724 HMH |
1996 | switch (video_supported) { |
1997 | case TPACPI_VIDEO_570: | |
1998 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
1999 | return -EIO; | |
2000 | break; | |
2001 | case TPACPI_VIDEO_770: | |
2002 | case TPACPI_VIDEO_NEW: | |
2003 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
2004 | return -EIO; | |
2005 | break; | |
2006 | default: | |
2007 | return -ENOSYS; | |
2008 | } | |
78f81cc4 | 2009 | |
83f34724 | 2010 | return autosw & 1; |
78f81cc4 BD |
2011 | } |
2012 | ||
83f34724 | 2013 | static int video_autosw_set(int enable) |
78f81cc4 | 2014 | { |
83f34724 HMH |
2015 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
2016 | return -EIO; | |
2017 | return 0; | |
78f81cc4 BD |
2018 | } |
2019 | ||
83f34724 | 2020 | static int video_outputsw_cycle(void) |
78f81cc4 | 2021 | { |
83f34724 HMH |
2022 | int autosw = video_autosw_get(); |
2023 | int res; | |
78f81cc4 | 2024 | |
83f34724 HMH |
2025 | if (autosw < 0) |
2026 | return autosw; | |
78f81cc4 | 2027 | |
83f34724 HMH |
2028 | switch (video_supported) { |
2029 | case TPACPI_VIDEO_570: | |
2030 | res = video_autosw_set(1); | |
2031 | if (res) | |
2032 | return res; | |
2033 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
2034 | break; | |
2035 | case TPACPI_VIDEO_770: | |
2036 | case TPACPI_VIDEO_NEW: | |
2037 | res = video_autosw_set(1); | |
2038 | if (res) | |
2039 | return res; | |
2040 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
2041 | break; | |
2042 | default: | |
2043 | return -ENOSYS; | |
2044 | } | |
2045 | if (!autosw && video_autosw_set(autosw)) { | |
2046 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
2047 | return -EIO; | |
78f81cc4 BD |
2048 | } |
2049 | ||
83f34724 HMH |
2050 | return (res)? 0 : -EIO; |
2051 | } | |
2052 | ||
2053 | static int video_expand_toggle(void) | |
2054 | { | |
2055 | switch (video_supported) { | |
2056 | case TPACPI_VIDEO_570: | |
2057 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
2058 | 0 : -EIO; | |
2059 | case TPACPI_VIDEO_770: | |
2060 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
2061 | 0 : -EIO; | |
2062 | case TPACPI_VIDEO_NEW: | |
2063 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
2064 | 0 : -EIO; | |
2065 | default: | |
2066 | return -ENOSYS; | |
2067 | } | |
2068 | /* not reached */ | |
78f81cc4 BD |
2069 | } |
2070 | ||
56b6aeb0 HMH |
2071 | static int video_read(char *p) |
2072 | { | |
83f34724 | 2073 | int status, autosw; |
56b6aeb0 HMH |
2074 | int len = 0; |
2075 | ||
83f34724 | 2076 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
2077 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
2078 | return len; | |
2079 | } | |
2080 | ||
83f34724 HMH |
2081 | status = video_outputsw_get(); |
2082 | if (status < 0) | |
2083 | return status; | |
2084 | ||
2085 | autosw = video_autosw_get(); | |
2086 | if (autosw < 0) | |
2087 | return autosw; | |
2088 | ||
56b6aeb0 HMH |
2089 | len += sprintf(p + len, "status:\t\tsupported\n"); |
2090 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
2091 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 2092 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
2093 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
2094 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
2095 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
2096 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 2097 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
2098 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
2099 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
2100 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
2101 | ||
2102 | return len; | |
2103 | } | |
2104 | ||
78f81cc4 | 2105 | static int video_write(char *buf) |
1da177e4 LT |
2106 | { |
2107 | char *cmd; | |
2108 | int enable, disable, status; | |
83f34724 | 2109 | int res; |
1da177e4 | 2110 | |
83f34724 | 2111 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
2112 | return -ENODEV; |
2113 | ||
83f34724 HMH |
2114 | enable = 0; |
2115 | disable = 0; | |
1da177e4 LT |
2116 | |
2117 | while ((cmd = next_cmd(&buf))) { | |
2118 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 2119 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 2120 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 2121 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 2122 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 2123 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 2124 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 2125 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 2126 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 2127 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 2128 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 2129 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 2130 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 2131 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 2132 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
2133 | res = video_autosw_set(1); |
2134 | if (res) | |
2135 | return res; | |
1da177e4 | 2136 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
2137 | res = video_autosw_set(0); |
2138 | if (res) | |
2139 | return res; | |
1da177e4 | 2140 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
2141 | res = video_outputsw_cycle(); |
2142 | if (res) | |
2143 | return res; | |
1da177e4 | 2144 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
2145 | res = video_expand_toggle(); |
2146 | if (res) | |
2147 | return res; | |
1da177e4 LT |
2148 | } else |
2149 | return -EINVAL; | |
2150 | } | |
2151 | ||
2152 | if (enable || disable) { | |
83f34724 HMH |
2153 | status = video_outputsw_get(); |
2154 | if (status < 0) | |
2155 | return status; | |
2156 | res = video_outputsw_set((status & ~disable) | enable); | |
2157 | if (res) | |
2158 | return res; | |
1da177e4 LT |
2159 | } |
2160 | ||
2161 | return 0; | |
2162 | } | |
2163 | ||
a5763f22 HMH |
2164 | static struct ibm_struct video_driver_data = { |
2165 | .name = "video", | |
2166 | .read = video_read, | |
2167 | .write = video_write, | |
2168 | .exit = video_exit, | |
2169 | }; | |
2170 | ||
56b6aeb0 HMH |
2171 | /************************************************************************* |
2172 | * Light (thinklight) subdriver | |
2173 | */ | |
1da177e4 | 2174 | |
56b6aeb0 HMH |
2175 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
2176 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
2177 | ||
a5763f22 | 2178 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 2179 | { |
fe08bc4b HMH |
2180 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
2181 | ||
8d376cd6 HMH |
2182 | IBM_ACPIHANDLE_INIT(ledb); |
2183 | IBM_ACPIHANDLE_INIT(lght); | |
2184 | IBM_ACPIHANDLE_INIT(cmos); | |
5fba344c | 2185 | |
78f81cc4 | 2186 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 2187 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 2188 | |
d8fd94d9 | 2189 | if (tp_features.light) |
78f81cc4 BD |
2190 | /* light status not supported on |
2191 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
2192 | tp_features.light_status = |
2193 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 2194 | |
fe08bc4b | 2195 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 2196 | str_supported(tp_features.light)); |
fe08bc4b | 2197 | |
d8fd94d9 | 2198 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
2199 | } |
2200 | ||
78f81cc4 | 2201 | static int light_read(char *p) |
1da177e4 LT |
2202 | { |
2203 | int len = 0; | |
2204 | int status = 0; | |
2205 | ||
d8fd94d9 | 2206 | if (!tp_features.light) { |
78f81cc4 | 2207 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 2208 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
2209 | len += sprintf(p + len, "status:\t\tunknown\n"); |
2210 | len += sprintf(p + len, "commands:\ton, off\n"); | |
2211 | } else { | |
1da177e4 LT |
2212 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
2213 | return -EIO; | |
2214 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
2215 | len += sprintf(p + len, "commands:\ton, off\n"); |
2216 | } | |
1da177e4 LT |
2217 | |
2218 | return len; | |
2219 | } | |
2220 | ||
78f81cc4 | 2221 | static int light_write(char *buf) |
1da177e4 LT |
2222 | { |
2223 | int cmos_cmd, lght_cmd; | |
2224 | char *cmd; | |
2225 | int success; | |
78f81cc4 | 2226 | |
d8fd94d9 | 2227 | if (!tp_features.light) |
78f81cc4 BD |
2228 | return -ENODEV; |
2229 | ||
1da177e4 LT |
2230 | while ((cmd = next_cmd(&buf))) { |
2231 | if (strlencmp(cmd, "on") == 0) { | |
2232 | cmos_cmd = 0x0c; | |
2233 | lght_cmd = 1; | |
2234 | } else if (strlencmp(cmd, "off") == 0) { | |
2235 | cmos_cmd = 0x0d; | |
2236 | lght_cmd = 0; | |
2237 | } else | |
2238 | return -EINVAL; | |
78f81cc4 | 2239 | |
1da177e4 | 2240 | success = cmos_handle ? |
78f81cc4 BD |
2241 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
2242 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
2243 | if (!success) |
2244 | return -EIO; | |
2245 | } | |
2246 | ||
2247 | return 0; | |
2248 | } | |
2249 | ||
a5763f22 HMH |
2250 | static struct ibm_struct light_driver_data = { |
2251 | .name = "light", | |
2252 | .read = light_read, | |
2253 | .write = light_write, | |
2254 | }; | |
2255 | ||
56b6aeb0 HMH |
2256 | /************************************************************************* |
2257 | * Dock subdriver | |
2258 | */ | |
1da177e4 | 2259 | |
85998248 | 2260 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 HMH |
2261 | |
2262 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ | |
2263 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
2264 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
2265 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
2266 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
2267 | ||
5fba344c HMH |
2268 | /* don't list other alternatives as we install a notify handler on the 570 */ |
2269 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
2270 | ||
1ba90e3a TR |
2271 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
2272 | {PCI_ROOT_HID_STRING, 0}, | |
2273 | {"", 0}, | |
2274 | }; | |
2275 | ||
d94a7f16 HMH |
2276 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
2277 | { | |
2278 | .notify = dock_notify, | |
2279 | .handle = &dock_handle, | |
2280 | .type = ACPI_SYSTEM_NOTIFY, | |
2281 | }, | |
2282 | { | |
996fba08 HMH |
2283 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
2284 | * We just use it to get notifications of dock hotplug | |
2285 | * in very old thinkpads */ | |
1ba90e3a | 2286 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
2287 | .notify = dock_notify, |
2288 | .handle = &pci_handle, | |
2289 | .type = ACPI_SYSTEM_NOTIFY, | |
2290 | }, | |
2291 | }; | |
2292 | ||
2293 | static struct ibm_struct dock_driver_data[2] = { | |
2294 | { | |
2295 | .name = "dock", | |
2296 | .read = dock_read, | |
2297 | .write = dock_write, | |
2298 | .acpi = &ibm_dock_acpidriver[0], | |
2299 | }, | |
2300 | { | |
2301 | .name = "dock", | |
2302 | .acpi = &ibm_dock_acpidriver[1], | |
2303 | }, | |
2304 | }; | |
2305 | ||
1da177e4 LT |
2306 | #define dock_docked() (_sta(dock_handle) & 1) |
2307 | ||
a5763f22 | 2308 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 2309 | { |
fe08bc4b HMH |
2310 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
2311 | ||
8d376cd6 | 2312 | IBM_ACPIHANDLE_INIT(dock); |
5fba344c | 2313 | |
fe08bc4b HMH |
2314 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
2315 | str_supported(dock_handle != NULL)); | |
2316 | ||
5fba344c HMH |
2317 | return (dock_handle)? 0 : 1; |
2318 | } | |
2319 | ||
d94a7f16 HMH |
2320 | static int __init dock_init2(struct ibm_init_struct *iibm) |
2321 | { | |
2322 | int dock2_needed; | |
2323 | ||
2324 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
2325 | ||
2326 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
2327 | dock_driver_data[0].flags.acpi_notify_installed) { | |
2328 | IBM_ACPIHANDLE_INIT(pci); | |
2329 | dock2_needed = (pci_handle != NULL); | |
2330 | vdbg_printk(TPACPI_DBG_INIT, | |
2331 | "dock PCI handler for the TP 570 is %s\n", | |
2332 | str_supported(dock2_needed)); | |
2333 | } else { | |
2334 | vdbg_printk(TPACPI_DBG_INIT, | |
2335 | "dock subdriver part 2 not required\n"); | |
2336 | dock2_needed = 0; | |
2337 | } | |
2338 | ||
2339 | return (dock2_needed)? 0 : 1; | |
2340 | } | |
2341 | ||
56b6aeb0 HMH |
2342 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
2343 | { | |
2344 | int docked = dock_docked(); | |
1ba90e3a TR |
2345 | int pci = ibm->acpi->hid && ibm->acpi->device && |
2346 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 2347 | int data; |
56b6aeb0 HMH |
2348 | |
2349 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 2350 | data = 1; /* button */ |
56b6aeb0 | 2351 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 2352 | data = 3; /* dock */ |
56b6aeb0 | 2353 | else if (event == 3 && docked) |
962ce8ca | 2354 | data = 1; /* button */ |
56b6aeb0 | 2355 | else if (event == 3 && !docked) |
962ce8ca | 2356 | data = 2; /* undock */ |
56b6aeb0 | 2357 | else if (event == 0 && docked) |
962ce8ca | 2358 | data = 3; /* dock */ |
56b6aeb0 HMH |
2359 | else { |
2360 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
2361 | event, _sta(dock_handle)); | |
962ce8ca | 2362 | data = 0; /* unknown */ |
56b6aeb0 | 2363 | } |
14e04fb3 | 2364 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca ZR |
2365 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
2366 | ibm->acpi->device->dev.bus_id, | |
2367 | event, data); | |
56b6aeb0 HMH |
2368 | } |
2369 | ||
78f81cc4 | 2370 | static int dock_read(char *p) |
1da177e4 LT |
2371 | { |
2372 | int len = 0; | |
2373 | int docked = dock_docked(); | |
2374 | ||
2375 | if (!dock_handle) | |
2376 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2377 | else if (!docked) | |
2378 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
2379 | else { | |
2380 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
2381 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
2382 | } | |
2383 | ||
2384 | return len; | |
2385 | } | |
2386 | ||
78f81cc4 | 2387 | static int dock_write(char *buf) |
1da177e4 LT |
2388 | { |
2389 | char *cmd; | |
2390 | ||
2391 | if (!dock_docked()) | |
78f81cc4 | 2392 | return -ENODEV; |
1da177e4 LT |
2393 | |
2394 | while ((cmd = next_cmd(&buf))) { | |
2395 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
2396 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
2397 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
2398 | return -EIO; |
2399 | } else if (strlencmp(cmd, "dock") == 0) { | |
2400 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
2401 | return -EIO; | |
2402 | } else | |
2403 | return -EINVAL; | |
1da177e4 | 2404 | } |
56b6aeb0 HMH |
2405 | |
2406 | return 0; | |
1da177e4 | 2407 | } |
56b6aeb0 | 2408 | |
85998248 | 2409 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
2410 | |
2411 | /************************************************************************* | |
2412 | * Bay subdriver | |
2413 | */ | |
1da177e4 | 2414 | |
85998248 | 2415 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
56b6aeb0 HMH |
2416 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
2417 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
2418 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
2419 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
2420 | ); /* A21e, R30, R31 */ | |
2421 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
2422 | "_EJ0", /* all others */ | |
2423 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
2424 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
2425 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
2426 | ); /* all others */ | |
2427 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
2428 | "_EJ0", /* 770x */ | |
2429 | ); /* all others */ | |
2430 | ||
a5763f22 | 2431 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 2432 | { |
fe08bc4b HMH |
2433 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
2434 | ||
8d376cd6 | 2435 | IBM_ACPIHANDLE_INIT(bay); |
5fba344c | 2436 | if (bay_handle) |
8d376cd6 HMH |
2437 | IBM_ACPIHANDLE_INIT(bay_ej); |
2438 | IBM_ACPIHANDLE_INIT(bay2); | |
5fba344c | 2439 | if (bay2_handle) |
8d376cd6 | 2440 | IBM_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 2441 | |
d8fd94d9 HMH |
2442 | tp_features.bay_status = bay_handle && |
2443 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
2444 | tp_features.bay_status2 = bay2_handle && | |
2445 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 2446 | |
d8fd94d9 HMH |
2447 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
2448 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
2449 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
2450 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 2451 | |
fe08bc4b HMH |
2452 | vdbg_printk(TPACPI_DBG_INIT, |
2453 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
2454 | str_supported(tp_features.bay_status), |
2455 | str_supported(tp_features.bay_eject), | |
2456 | str_supported(tp_features.bay_status2), | |
2457 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 2458 | |
d8fd94d9 HMH |
2459 | return (tp_features.bay_status || tp_features.bay_eject || |
2460 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
2461 | } |
2462 | ||
56b6aeb0 HMH |
2463 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
2464 | { | |
14e04fb3 | 2465 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca ZR |
2466 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
2467 | ibm->acpi->device->dev.bus_id, | |
2468 | event, 0); | |
56b6aeb0 HMH |
2469 | } |
2470 | ||
78f81cc4 BD |
2471 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
2472 | ||
2473 | static int bay_read(char *p) | |
1da177e4 LT |
2474 | { |
2475 | int len = 0; | |
78f81cc4 BD |
2476 | int occupied = bay_occupied(bay); |
2477 | int occupied2 = bay_occupied(bay2); | |
2478 | int eject, eject2; | |
2479 | ||
d8fd94d9 HMH |
2480 | len += sprintf(p + len, "status:\t\t%s\n", |
2481 | tp_features.bay_status ? | |
2482 | (occupied ? "occupied" : "unoccupied") : | |
2483 | "not supported"); | |
2484 | if (tp_features.bay_status2) | |
78f81cc4 BD |
2485 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
2486 | "occupied" : "unoccupied"); | |
2487 | ||
d8fd94d9 HMH |
2488 | eject = tp_features.bay_eject && occupied; |
2489 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
2490 | |
2491 | if (eject && eject2) | |
2492 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
2493 | else if (eject) | |
1da177e4 | 2494 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
2495 | else if (eject2) |
2496 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
2497 | |
2498 | return len; | |
2499 | } | |
2500 | ||
78f81cc4 | 2501 | static int bay_write(char *buf) |
1da177e4 LT |
2502 | { |
2503 | char *cmd; | |
2504 | ||
d8fd94d9 | 2505 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
2506 | return -ENODEV; |
2507 | ||
1da177e4 | 2508 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 2509 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
2510 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
2511 | return -EIO; | |
d8fd94d9 | 2512 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
2513 | strlencmp(cmd, "eject2") == 0) { |
2514 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
2515 | return -EIO; |
2516 | } else | |
2517 | return -EINVAL; | |
2518 | } | |
2519 | ||
2520 | return 0; | |
78f81cc4 | 2521 | } |
a5763f22 | 2522 | |
8d376cd6 HMH |
2523 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
2524 | .notify = bay_notify, | |
2525 | .handle = &bay_handle, | |
2526 | .type = ACPI_SYSTEM_NOTIFY, | |
2527 | }; | |
2528 | ||
a5763f22 HMH |
2529 | static struct ibm_struct bay_driver_data = { |
2530 | .name = "bay", | |
2531 | .read = bay_read, | |
2532 | .write = bay_write, | |
8d376cd6 | 2533 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
2534 | }; |
2535 | ||
85998248 | 2536 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 2537 | |
56b6aeb0 HMH |
2538 | /************************************************************************* |
2539 | * CMOS subdriver | |
2540 | */ | |
2541 | ||
b616004c HMH |
2542 | /* sysfs cmos_command -------------------------------------------------- */ |
2543 | static ssize_t cmos_command_store(struct device *dev, | |
2544 | struct device_attribute *attr, | |
2545 | const char *buf, size_t count) | |
2546 | { | |
2547 | unsigned long cmos_cmd; | |
2548 | int res; | |
2549 | ||
2550 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
2551 | return -EINVAL; | |
2552 | ||
2553 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
2554 | return (res)? res : count; | |
2555 | } | |
2556 | ||
2557 | static struct device_attribute dev_attr_cmos_command = | |
2558 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
2559 | ||
2560 | /* --------------------------------------------------------------------- */ | |
2561 | ||
a5763f22 | 2562 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 2563 | { |
b616004c HMH |
2564 | int res; |
2565 | ||
fe08bc4b HMH |
2566 | vdbg_printk(TPACPI_DBG_INIT, |
2567 | "initializing cmos commands subdriver\n"); | |
2568 | ||
8d376cd6 | 2569 | IBM_ACPIHANDLE_INIT(cmos); |
5fba344c | 2570 | |
fe08bc4b HMH |
2571 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
2572 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
2573 | |
2574 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
2575 | if (res) | |
2576 | return res; | |
2577 | ||
5fba344c HMH |
2578 | return (cmos_handle)? 0 : 1; |
2579 | } | |
2580 | ||
b616004c HMH |
2581 | static void cmos_exit(void) |
2582 | { | |
2583 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
2584 | } | |
2585 | ||
78f81cc4 | 2586 | static int cmos_read(char *p) |
1da177e4 LT |
2587 | { |
2588 | int len = 0; | |
2589 | ||
78f81cc4 BD |
2590 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2591 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
2592 | if (!cmos_handle) |
2593 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2594 | else { | |
2595 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 2596 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
2597 | } |
2598 | ||
2599 | return len; | |
2600 | } | |
2601 | ||
78f81cc4 | 2602 | static int cmos_write(char *buf) |
1da177e4 LT |
2603 | { |
2604 | char *cmd; | |
c9bea99c | 2605 | int cmos_cmd, res; |
1da177e4 LT |
2606 | |
2607 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
2608 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
2609 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
2610 | /* cmos_cmd set */ |
2611 | } else | |
2612 | return -EINVAL; | |
2613 | ||
c9bea99c HMH |
2614 | res = issue_thinkpad_cmos_command(cmos_cmd); |
2615 | if (res) | |
2616 | return res; | |
1da177e4 LT |
2617 | } |
2618 | ||
2619 | return 0; | |
78f81cc4 BD |
2620 | } |
2621 | ||
a5763f22 HMH |
2622 | static struct ibm_struct cmos_driver_data = { |
2623 | .name = "cmos", | |
2624 | .read = cmos_read, | |
2625 | .write = cmos_write, | |
b616004c | 2626 | .exit = cmos_exit, |
a5763f22 | 2627 | }; |
56b6aeb0 HMH |
2628 | |
2629 | /************************************************************************* | |
2630 | * LED subdriver | |
2631 | */ | |
2632 | ||
9a8e1738 | 2633 | static enum led_access_mode led_supported; |
78f81cc4 | 2634 | |
56b6aeb0 HMH |
2635 | IBM_HANDLE(led, ec, "SLED", /* 570 */ |
2636 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
2637 | "LED", /* all others */ | |
2638 | ); /* R30, R31 */ | |
2639 | ||
a5763f22 | 2640 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2641 | { |
fe08bc4b HMH |
2642 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
2643 | ||
8d376cd6 | 2644 | IBM_ACPIHANDLE_INIT(led); |
5fba344c | 2645 | |
78f81cc4 BD |
2646 | if (!led_handle) |
2647 | /* led not supported on R30, R31 */ | |
efa27145 | 2648 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
2649 | else if (strlencmp(led_path, "SLED") == 0) |
2650 | /* 570 */ | |
efa27145 | 2651 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
2652 | else if (strlencmp(led_path, "SYSL") == 0) |
2653 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 2654 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
2655 | else |
2656 | /* all others */ | |
efa27145 | 2657 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 2658 | |
fe08bc4b HMH |
2659 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
2660 | str_supported(led_supported), led_supported); | |
2661 | ||
5fba344c | 2662 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
2663 | } |
2664 | ||
2665 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
2666 | ||
2667 | static int led_read(char *p) | |
1da177e4 LT |
2668 | { |
2669 | int len = 0; | |
2670 | ||
78f81cc4 BD |
2671 | if (!led_supported) { |
2672 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2673 | return len; | |
2674 | } | |
2675 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2676 | ||
efa27145 | 2677 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2678 | /* 570 */ |
2679 | int i, status; | |
2680 | for (i = 0; i < 8; i++) { | |
2681 | if (!acpi_evalf(ec_handle, | |
2682 | &status, "GLED", "dd", 1 << i)) | |
2683 | return -EIO; | |
2684 | len += sprintf(p + len, "%d:\t\t%s\n", | |
2685 | i, led_status(status)); | |
2686 | } | |
2687 | } | |
2688 | ||
1da177e4 | 2689 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 2690 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
2691 | |
2692 | return len; | |
2693 | } | |
2694 | ||
78f81cc4 BD |
2695 | /* off, on, blink */ |
2696 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
2697 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
2698 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
2699 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
2700 | ||
78f81cc4 | 2701 | static int led_write(char *buf) |
1da177e4 LT |
2702 | { |
2703 | char *cmd; | |
78f81cc4 BD |
2704 | int led, ind, ret; |
2705 | ||
2706 | if (!led_supported) | |
2707 | return -ENODEV; | |
1da177e4 LT |
2708 | |
2709 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 2710 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
2711 | return -EINVAL; |
2712 | ||
78f81cc4 BD |
2713 | if (strstr(cmd, "off")) { |
2714 | ind = 0; | |
1da177e4 | 2715 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
2716 | ind = 1; |
2717 | } else if (strstr(cmd, "blink")) { | |
2718 | ind = 2; | |
1da177e4 LT |
2719 | } else |
2720 | return -EINVAL; | |
78f81cc4 | 2721 | |
efa27145 | 2722 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2723 | /* 570 */ |
2724 | led = 1 << led; | |
1da177e4 | 2725 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 2726 | led, led_sled_arg1[ind])) |
1da177e4 | 2727 | return -EIO; |
efa27145 | 2728 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
2729 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
2730 | led = 1 << led; | |
efa27145 | 2731 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
2732 | if (ret >= 0) |
2733 | ret = | |
efa27145 | 2734 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 2735 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
2736 | if (ret >= 0) |
2737 | ret = | |
efa27145 | 2738 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 2739 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
2740 | if (ret < 0) |
2741 | return ret; | |
2742 | } else { | |
2743 | /* all others */ | |
2744 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
2745 | led, led_led_arg1[ind])) | |
1da177e4 | 2746 | return -EIO; |
78f81cc4 BD |
2747 | } |
2748 | } | |
2749 | ||
2750 | return 0; | |
2751 | } | |
2752 | ||
a5763f22 HMH |
2753 | static struct ibm_struct led_driver_data = { |
2754 | .name = "led", | |
2755 | .read = led_read, | |
2756 | .write = led_write, | |
2757 | }; | |
2758 | ||
56b6aeb0 HMH |
2759 | /************************************************************************* |
2760 | * Beep subdriver | |
2761 | */ | |
2762 | ||
2763 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
2764 | ||
a5763f22 | 2765 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 2766 | { |
fe08bc4b HMH |
2767 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
2768 | ||
8d376cd6 | 2769 | IBM_ACPIHANDLE_INIT(beep); |
5fba344c | 2770 | |
fe08bc4b HMH |
2771 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
2772 | str_supported(beep_handle != NULL)); | |
2773 | ||
5fba344c HMH |
2774 | return (beep_handle)? 0 : 1; |
2775 | } | |
2776 | ||
78f81cc4 BD |
2777 | static int beep_read(char *p) |
2778 | { | |
2779 | int len = 0; | |
2780 | ||
2781 | if (!beep_handle) | |
2782 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2783 | else { | |
2784 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2785 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
2786 | } | |
2787 | ||
2788 | return len; | |
2789 | } | |
2790 | ||
2791 | static int beep_write(char *buf) | |
2792 | { | |
2793 | char *cmd; | |
2794 | int beep_cmd; | |
2795 | ||
2796 | if (!beep_handle) | |
2797 | return -ENODEV; | |
2798 | ||
2799 | while ((cmd = next_cmd(&buf))) { | |
2800 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
2801 | beep_cmd >= 0 && beep_cmd <= 17) { | |
2802 | /* beep_cmd set */ | |
2803 | } else | |
2804 | return -EINVAL; | |
2805 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
2806 | return -EIO; | |
2807 | } | |
2808 | ||
2809 | return 0; | |
2810 | } | |
2811 | ||
a5763f22 HMH |
2812 | static struct ibm_struct beep_driver_data = { |
2813 | .name = "beep", | |
2814 | .read = beep_read, | |
2815 | .write = beep_write, | |
2816 | }; | |
2817 | ||
56b6aeb0 HMH |
2818 | /************************************************************************* |
2819 | * Thermal subdriver | |
2820 | */ | |
78f81cc4 | 2821 | |
a26f878a | 2822 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 2823 | |
2c37aa4e HMH |
2824 | /* sysfs temp##_input -------------------------------------------------- */ |
2825 | ||
2826 | static ssize_t thermal_temp_input_show(struct device *dev, | |
2827 | struct device_attribute *attr, | |
2828 | char *buf) | |
2829 | { | |
2830 | struct sensor_device_attribute *sensor_attr = | |
2831 | to_sensor_dev_attr(attr); | |
2832 | int idx = sensor_attr->index; | |
2833 | s32 value; | |
2834 | int res; | |
2835 | ||
2836 | res = thermal_get_sensor(idx, &value); | |
2837 | if (res) | |
2838 | return res; | |
2839 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
2840 | return -ENXIO; | |
2841 | ||
2842 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
2843 | } | |
2844 | ||
2845 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
2846 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB) | |
2847 | ||
2848 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
2849 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
2850 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
2851 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
2852 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
2853 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
2854 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
2855 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
2856 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
2857 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
2858 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
2859 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
2860 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
2861 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
2862 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
2863 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
2864 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
2865 | }; | |
2866 | ||
2867 | #define THERMAL_ATTRS(X) \ | |
2868 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
2869 | ||
2870 | static struct attribute *thermal_temp_input_attr[] = { | |
2871 | THERMAL_ATTRS(8), | |
2872 | THERMAL_ATTRS(9), | |
2873 | THERMAL_ATTRS(10), | |
2874 | THERMAL_ATTRS(11), | |
2875 | THERMAL_ATTRS(12), | |
2876 | THERMAL_ATTRS(13), | |
2877 | THERMAL_ATTRS(14), | |
2878 | THERMAL_ATTRS(15), | |
2879 | THERMAL_ATTRS(0), | |
2880 | THERMAL_ATTRS(1), | |
2881 | THERMAL_ATTRS(2), | |
2882 | THERMAL_ATTRS(3), | |
2883 | THERMAL_ATTRS(4), | |
2884 | THERMAL_ATTRS(5), | |
2885 | THERMAL_ATTRS(6), | |
2886 | THERMAL_ATTRS(7), | |
2887 | NULL | |
2888 | }; | |
2889 | ||
2890 | static const struct attribute_group thermal_temp_input16_group = { | |
2891 | .attrs = thermal_temp_input_attr | |
2892 | }; | |
2893 | ||
2894 | static const struct attribute_group thermal_temp_input8_group = { | |
2895 | .attrs = &thermal_temp_input_attr[8] | |
2896 | }; | |
2897 | ||
2898 | #undef THERMAL_SENSOR_ATTR_TEMP | |
2899 | #undef THERMAL_ATTRS | |
2900 | ||
2901 | /* --------------------------------------------------------------------- */ | |
2902 | ||
a5763f22 | 2903 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2904 | { |
60eb0b35 HMH |
2905 | u8 t, ta1, ta2; |
2906 | int i; | |
5fba344c | 2907 | int acpi_tmp7; |
2c37aa4e | 2908 | int res; |
5fba344c | 2909 | |
fe08bc4b HMH |
2910 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
2911 | ||
5fba344c | 2912 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 2913 | |
3d6f99ca | 2914 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
2915 | /* |
2916 | * Direct EC access mode: sensors at registers | |
2917 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
2918 | * non-implemented, thermal sensors return 0x80 when | |
2919 | * not available | |
2920 | */ | |
78f81cc4 | 2921 | |
60eb0b35 HMH |
2922 | ta1 = ta2 = 0; |
2923 | for (i = 0; i < 8; i++) { | |
04cc862c | 2924 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
2925 | ta1 |= t; |
2926 | } else { | |
2927 | ta1 = 0; | |
2928 | break; | |
2929 | } | |
04cc862c | 2930 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
2931 | ta2 |= t; |
2932 | } else { | |
2933 | ta1 = 0; | |
2934 | break; | |
2935 | } | |
2936 | } | |
2937 | if (ta1 == 0) { | |
2938 | /* This is sheer paranoia, but we handle it anyway */ | |
2939 | if (acpi_tmp7) { | |
2940 | printk(IBM_ERR | |
2941 | "ThinkPad ACPI EC access misbehaving, " | |
2942 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 2943 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 HMH |
2944 | } else { |
2945 | printk(IBM_ERR | |
2946 | "ThinkPad ACPI EC access misbehaving, " | |
2947 | "disabling thermal sensors access\n"); | |
efa27145 | 2948 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
2949 | } |
2950 | } else { | |
2951 | thermal_read_mode = | |
2952 | (ta2 != 0) ? | |
efa27145 | 2953 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
2954 | } |
2955 | } else if (acpi_tmp7) { | |
a26f878a HMH |
2956 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
2957 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2958 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
2959 | } else { |
2960 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 2961 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
2962 | } |
2963 | } else { | |
2964 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 2965 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 2966 | } |
78f81cc4 | 2967 | |
fe08bc4b HMH |
2968 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
2969 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
2970 | thermal_read_mode); | |
2971 | ||
2c37aa4e HMH |
2972 | switch(thermal_read_mode) { |
2973 | case TPACPI_THERMAL_TPEC_16: | |
7fd40029 | 2974 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
2975 | &thermal_temp_input16_group); |
2976 | if (res) | |
2977 | return res; | |
2978 | break; | |
2979 | case TPACPI_THERMAL_TPEC_8: | |
2980 | case TPACPI_THERMAL_ACPI_TMP07: | |
2981 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 2982 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
2983 | &thermal_temp_input8_group); |
2984 | if (res) | |
2985 | return res; | |
2986 | break; | |
2987 | case TPACPI_THERMAL_NONE: | |
2988 | default: | |
2989 | return 1; | |
2990 | } | |
2991 | ||
2992 | return 0; | |
2993 | } | |
2994 | ||
2995 | static void thermal_exit(void) | |
2996 | { | |
2997 | switch(thermal_read_mode) { | |
2998 | case TPACPI_THERMAL_TPEC_16: | |
7fd40029 | 2999 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3000 | &thermal_temp_input16_group); |
3001 | break; | |
3002 | case TPACPI_THERMAL_TPEC_8: | |
3003 | case TPACPI_THERMAL_ACPI_TMP07: | |
3004 | case TPACPI_THERMAL_ACPI_UPDT: | |
7fd40029 | 3005 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
2c37aa4e HMH |
3006 | &thermal_temp_input16_group); |
3007 | break; | |
3008 | case TPACPI_THERMAL_NONE: | |
3009 | default: | |
3010 | break; | |
3011 | } | |
78f81cc4 BD |
3012 | } |
3013 | ||
04cc862c HMH |
3014 | /* idx is zero-based */ |
3015 | static int thermal_get_sensor(int idx, s32 *value) | |
78f81cc4 | 3016 | { |
04cc862c | 3017 | int t; |
60eb0b35 | 3018 | s8 tmp; |
04cc862c | 3019 | char tmpi[5]; |
78f81cc4 | 3020 | |
04cc862c | 3021 | t = TP_EC_THERMAL_TMP0; |
78f81cc4 | 3022 | |
a26f878a | 3023 | switch (thermal_read_mode) { |
efa27145 HMH |
3024 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 |
3025 | case TPACPI_THERMAL_TPEC_16: | |
04cc862c HMH |
3026 | if (idx >= 8 && idx <= 15) { |
3027 | t = TP_EC_THERMAL_TMP8; | |
3028 | idx -= 8; | |
60eb0b35 HMH |
3029 | } |
3030 | /* fallthrough */ | |
3031 | #endif | |
efa27145 | 3032 | case TPACPI_THERMAL_TPEC_8: |
04cc862c HMH |
3033 | if (idx <= 7) { |
3034 | if (!acpi_ec_read(t + idx, &tmp)) | |
78f81cc4 | 3035 | return -EIO; |
04cc862c HMH |
3036 | *value = tmp * 1000; |
3037 | return 0; | |
60eb0b35 | 3038 | } |
04cc862c | 3039 | break; |
78f81cc4 | 3040 | |
efa27145 | 3041 | case TPACPI_THERMAL_ACPI_UPDT: |
04cc862c HMH |
3042 | if (idx <= 7) { |
3043 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
3044 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
3045 | return -EIO; | |
78f81cc4 BD |
3046 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
3047 | return -EIO; | |
04cc862c HMH |
3048 | *value = (t - 2732) * 100; |
3049 | return 0; | |
78f81cc4 | 3050 | } |
04cc862c | 3051 | break; |
78f81cc4 | 3052 | |
efa27145 | 3053 | case TPACPI_THERMAL_ACPI_TMP07: |
04cc862c HMH |
3054 | if (idx <= 7) { |
3055 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
78f81cc4 BD |
3056 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
3057 | return -EIO; | |
a8fba3da HMH |
3058 | if (t > 127 || t < -127) |
3059 | t = TP_EC_THERMAL_TMP_NA; | |
04cc862c HMH |
3060 | *value = t * 1000; |
3061 | return 0; | |
78f81cc4 | 3062 | } |
04cc862c | 3063 | break; |
78f81cc4 | 3064 | |
efa27145 | 3065 | case TPACPI_THERMAL_NONE: |
a26f878a | 3066 | default: |
04cc862c HMH |
3067 | return -ENOSYS; |
3068 | } | |
3069 | ||
3070 | return -EINVAL; | |
3071 | } | |
3072 | ||
3073 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
3074 | { | |
3075 | int res, i; | |
3076 | int n; | |
3077 | ||
3078 | n = 8; | |
3079 | i = 0; | |
3080 | ||
3081 | if (!s) | |
3082 | return -EINVAL; | |
3083 | ||
3084 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
3085 | n = 16; | |
3086 | ||
3087 | for(i = 0 ; i < n; i++) { | |
3088 | res = thermal_get_sensor(i, &s->temp[i]); | |
3089 | if (res) | |
3090 | return res; | |
78f81cc4 | 3091 | } |
04cc862c HMH |
3092 | |
3093 | return n; | |
a26f878a HMH |
3094 | } |
3095 | ||
3096 | static int thermal_read(char *p) | |
3097 | { | |
3098 | int len = 0; | |
3099 | int n, i; | |
3100 | struct ibm_thermal_sensors_struct t; | |
3101 | ||
3102 | n = thermal_get_sensors(&t); | |
3103 | if (unlikely(n < 0)) | |
3104 | return n; | |
3105 | ||
3106 | len += sprintf(p + len, "temperatures:\t"); | |
3107 | ||
3108 | if (n > 0) { | |
3109 | for (i = 0; i < (n - 1); i++) | |
3110 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
3111 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
3112 | } else | |
3113 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
3114 | |
3115 | return len; | |
3116 | } | |
3117 | ||
a5763f22 HMH |
3118 | static struct ibm_struct thermal_driver_data = { |
3119 | .name = "thermal", | |
3120 | .read = thermal_read, | |
2c37aa4e | 3121 | .exit = thermal_exit, |
a5763f22 HMH |
3122 | }; |
3123 | ||
56b6aeb0 HMH |
3124 | /************************************************************************* |
3125 | * EC Dump subdriver | |
3126 | */ | |
3127 | ||
78f81cc4 BD |
3128 | static u8 ecdump_regs[256]; |
3129 | ||
3130 | static int ecdump_read(char *p) | |
3131 | { | |
3132 | int len = 0; | |
3133 | int i, j; | |
3134 | u8 v; | |
3135 | ||
3136 | len += sprintf(p + len, "EC " | |
3137 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
3138 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
3139 | for (i = 0; i < 256; i += 16) { | |
3140 | len += sprintf(p + len, "EC 0x%02x:", i); | |
3141 | for (j = 0; j < 16; j++) { | |
3142 | if (!acpi_ec_read(i + j, &v)) | |
3143 | break; | |
3144 | if (v != ecdump_regs[i + j]) | |
3145 | len += sprintf(p + len, " *%02x", v); | |
3146 | else | |
3147 | len += sprintf(p + len, " %02x", v); | |
3148 | ecdump_regs[i + j] = v; | |
3149 | } | |
3150 | len += sprintf(p + len, "\n"); | |
3151 | if (j != 16) | |
3152 | break; | |
3153 | } | |
3154 | ||
3155 | /* These are way too dangerous to advertise openly... */ | |
3156 | #if 0 | |
3157 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
3158 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
3159 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
3160 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
3161 | #endif | |
3162 | return len; | |
3163 | } | |
3164 | ||
3165 | static int ecdump_write(char *buf) | |
3166 | { | |
3167 | char *cmd; | |
3168 | int i, v; | |
3169 | ||
3170 | while ((cmd = next_cmd(&buf))) { | |
3171 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
3172 | /* i and v set */ | |
3173 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
3174 | /* i and v set */ | |
3175 | } else | |
3176 | return -EINVAL; | |
3177 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
3178 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
3179 | return -EIO; |
3180 | } else | |
3181 | return -EINVAL; | |
3182 | } | |
3183 | ||
3184 | return 0; | |
78f81cc4 BD |
3185 | } |
3186 | ||
a5763f22 HMH |
3187 | static struct ibm_struct ecdump_driver_data = { |
3188 | .name = "ecdump", | |
3189 | .read = ecdump_read, | |
3190 | .write = ecdump_write, | |
92641177 | 3191 | .flags.experimental = 1, |
a5763f22 HMH |
3192 | }; |
3193 | ||
56b6aeb0 HMH |
3194 | /************************************************************************* |
3195 | * Backlight/brightness subdriver | |
3196 | */ | |
3197 | ||
94954cc6 | 3198 | static struct backlight_device *ibm_backlight_device; |
56b6aeb0 HMH |
3199 | |
3200 | static struct backlight_ops ibm_backlight_data = { | |
3201 | .get_brightness = brightness_get, | |
3202 | .update_status = brightness_update_status, | |
3203 | }; | |
3204 | ||
f432255e HMH |
3205 | static struct mutex brightness_mutex; |
3206 | ||
a3f104c0 HMH |
3207 | static int __init tpacpi_query_bcll_levels(acpi_handle handle) |
3208 | { | |
3209 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
3210 | union acpi_object *obj; | |
3211 | int rc; | |
3212 | ||
3213 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { | |
3214 | obj = (union acpi_object *)buffer.pointer; | |
3215 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
3216 | printk(IBM_ERR "Unknown BCLL data, " | |
3217 | "please report this to %s\n", IBM_MAIL); | |
3218 | rc = 0; | |
3219 | } else { | |
3220 | rc = obj->package.count; | |
3221 | } | |
3222 | } else { | |
3223 | return 0; | |
3224 | } | |
3225 | ||
3226 | kfree(buffer.pointer); | |
3227 | return rc; | |
3228 | } | |
3229 | ||
3230 | static acpi_status __init brightness_find_bcll(acpi_handle handle, u32 lvl, | |
3231 | void *context, void **rv) | |
3232 | { | |
3233 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
3234 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
3235 | ||
3236 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
3237 | !strncmp("BCLL", name, sizeof(name) - 1)) { | |
3238 | if (tpacpi_query_bcll_levels(handle) == 16) { | |
3239 | *rv = handle; | |
3240 | return AE_CTRL_TERMINATE; | |
3241 | } else { | |
3242 | return AE_OK; | |
3243 | } | |
3244 | } else { | |
3245 | return AE_OK; | |
3246 | } | |
3247 | } | |
3248 | ||
3249 | static int __init brightness_check_levels(void) | |
3250 | { | |
3251 | int status; | |
3252 | void *found_node = NULL; | |
3253 | ||
3254 | if (!vid_handle) { | |
3255 | IBM_ACPIHANDLE_INIT(vid); | |
3256 | } | |
3257 | if (!vid_handle) | |
3258 | return 0; | |
3259 | ||
3260 | /* Search for a BCLL package with 16 levels */ | |
3261 | status = acpi_walk_namespace(ACPI_TYPE_PACKAGE, vid_handle, 3, | |
3262 | brightness_find_bcll, NULL, &found_node); | |
3263 | ||
3264 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
3265 | } | |
3266 | ||
e11e211a HMH |
3267 | static acpi_status __init brightness_find_bcl(acpi_handle handle, u32 lvl, |
3268 | void *context, void **rv) | |
3269 | { | |
3270 | char name[ACPI_PATH_SEGMENT_LENGTH]; | |
3271 | struct acpi_buffer buffer = { sizeof(name), &name }; | |
3272 | ||
3273 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && | |
3274 | !strncmp("_BCL", name, sizeof(name) - 1)) { | |
3275 | *rv = handle; | |
3276 | return AE_CTRL_TERMINATE; | |
3277 | } else { | |
3278 | return AE_OK; | |
3279 | } | |
3280 | } | |
3281 | ||
3282 | static int __init brightness_check_std_acpi_support(void) | |
3283 | { | |
3284 | int status; | |
3285 | void *found_node = NULL; | |
3286 | ||
3287 | if (!vid_handle) { | |
3288 | IBM_ACPIHANDLE_INIT(vid); | |
3289 | } | |
3290 | if (!vid_handle) | |
3291 | return 0; | |
3292 | ||
3293 | /* Search for a _BCL method, but don't execute it */ | |
3294 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, | |
3295 | brightness_find_bcl, NULL, &found_node); | |
3296 | ||
3297 | return (ACPI_SUCCESS(status) && found_node != NULL); | |
3298 | } | |
3299 | ||
a5763f22 | 3300 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
3301 | { |
3302 | int b; | |
3303 | ||
fe08bc4b HMH |
3304 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
3305 | ||
f432255e HMH |
3306 | mutex_init(&brightness_mutex); |
3307 | ||
87cc537a HMH |
3308 | if (!brightness_enable) { |
3309 | dbg_printk(TPACPI_DBG_INIT, | |
3310 | "brightness support disabled by module parameter\n"); | |
3311 | return 1; | |
e11e211a HMH |
3312 | } else if (brightness_enable > 1) { |
3313 | if (brightness_check_std_acpi_support()) { | |
3314 | printk(IBM_NOTICE | |
3315 | "standard ACPI backlight interface available, not loading native one...\n"); | |
3316 | return 1; | |
3317 | } | |
87cc537a HMH |
3318 | } |
3319 | ||
24d3b774 HMH |
3320 | if (!brightness_mode) { |
3321 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
3322 | brightness_mode = 2; | |
3323 | else | |
3324 | brightness_mode = 3; | |
3325 | ||
3326 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
3327 | brightness_mode); | |
3328 | } | |
3329 | ||
3330 | if (brightness_mode > 3) | |
3331 | return -EINVAL; | |
3332 | ||
a3f104c0 HMH |
3333 | tp_features.bright_16levels = |
3334 | thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO && | |
3335 | brightness_check_levels(); | |
3336 | ||
56b6aeb0 HMH |
3337 | b = brightness_get(NULL); |
3338 | if (b < 0) | |
24d3b774 | 3339 | return 1; |
56b6aeb0 | 3340 | |
a3f104c0 HMH |
3341 | if (tp_features.bright_16levels) |
3342 | printk(IBM_INFO "detected a 16-level brightness capable ThinkPad\n"); | |
3343 | ||
7d5a015e HMH |
3344 | ibm_backlight_device = backlight_device_register( |
3345 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
3346 | &ibm_backlight_data); | |
56b6aeb0 HMH |
3347 | if (IS_ERR(ibm_backlight_device)) { |
3348 | printk(IBM_ERR "Could not register backlight device\n"); | |
3349 | return PTR_ERR(ibm_backlight_device); | |
3350 | } | |
fe08bc4b | 3351 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 | 3352 | |
a3f104c0 HMH |
3353 | ibm_backlight_device->props.max_brightness = |
3354 | (tp_features.bright_16levels)? 15 : 7; | |
56b6aeb0 HMH |
3355 | ibm_backlight_device->props.brightness = b; |
3356 | backlight_update_status(ibm_backlight_device); | |
3357 | ||
3358 | return 0; | |
3359 | } | |
3360 | ||
3361 | static void brightness_exit(void) | |
3362 | { | |
3363 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
3364 | vdbg_printk(TPACPI_DBG_EXIT, |
3365 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
3366 | backlight_device_unregister(ibm_backlight_device); |
3367 | ibm_backlight_device = NULL; | |
3368 | } | |
3369 | } | |
3370 | ||
3371 | static int brightness_update_status(struct backlight_device *bd) | |
3372 | { | |
4273af8d HMH |
3373 | /* it is the backlight class's job (caller) to handle |
3374 | * EINTR and other errors properly */ | |
56b6aeb0 HMH |
3375 | return brightness_set( |
3376 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
3377 | bd->props.power == FB_BLANK_UNBLANK) ? | |
3378 | bd->props.brightness : 0); | |
3379 | } | |
3380 | ||
24d3b774 HMH |
3381 | /* |
3382 | * ThinkPads can read brightness from two places: EC 0x31, or | |
3383 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
3384 | */ | |
8acb0250 HM |
3385 | static int brightness_get(struct backlight_device *bd) |
3386 | { | |
24d3b774 | 3387 | u8 lec = 0, lcmos = 0, level = 0; |
8acb0250 | 3388 | |
24d3b774 HMH |
3389 | if (brightness_mode & 1) { |
3390 | if (!acpi_ec_read(brightness_offset, &lec)) | |
3391 | return -EIO; | |
a3f104c0 | 3392 | lec &= (tp_features.bright_16levels)? 0x0f : 0x07; |
24d3b774 HMH |
3393 | level = lec; |
3394 | }; | |
3395 | if (brightness_mode & 2) { | |
3396 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
3397 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
3398 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
a3f104c0 | 3399 | lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; |
24d3b774 HMH |
3400 | level = lcmos; |
3401 | } | |
3402 | ||
3403 | if (brightness_mode == 3 && lec != lcmos) { | |
3404 | printk(IBM_ERR | |
3405 | "CMOS NVRAM (%u) and EC (%u) do not agree " | |
3406 | "on display brightness level\n", | |
3407 | (unsigned int) lcmos, | |
3408 | (unsigned int) lec); | |
3409 | return -EIO; | |
3410 | } | |
fb87a811 | 3411 | |
8d297264 | 3412 | return level; |
8acb0250 HM |
3413 | } |
3414 | ||
4273af8d | 3415 | /* May return EINTR which can always be mapped to ERESTARTSYS */ |
8acb0250 | 3416 | static int brightness_set(int value) |
1da177e4 | 3417 | { |
f432255e HMH |
3418 | int cmos_cmd, inc, i, res; |
3419 | int current_value; | |
8acb0250 | 3420 | |
a3f104c0 | 3421 | if (value > ((tp_features.bright_16levels)? 15 : 7)) |
24d3b774 | 3422 | return -EINVAL; |
8acb0250 | 3423 | |
f432255e HMH |
3424 | res = mutex_lock_interruptible(&brightness_mutex); |
3425 | if (res < 0) | |
3426 | return res; | |
3427 | ||
3428 | current_value = brightness_get(NULL); | |
3429 | if (current_value < 0) { | |
3430 | res = current_value; | |
3431 | goto errout; | |
3432 | } | |
3433 | ||
24d3b774 HMH |
3434 | cmos_cmd = value > current_value ? |
3435 | TP_CMOS_BRIGHTNESS_UP : | |
3436 | TP_CMOS_BRIGHTNESS_DOWN; | |
a3f104c0 | 3437 | inc = (value > current_value)? 1 : -1; |
24d3b774 | 3438 | |
f432255e | 3439 | res = 0; |
8acb0250 | 3440 | for (i = current_value; i != value; i += inc) { |
24d3b774 | 3441 | if ((brightness_mode & 2) && |
f432255e HMH |
3442 | issue_thinkpad_cmos_command(cmos_cmd)) { |
3443 | res = -EIO; | |
3444 | goto errout; | |
3445 | } | |
24d3b774 | 3446 | if ((brightness_mode & 1) && |
f432255e HMH |
3447 | !acpi_ec_write(brightness_offset, i + inc)) { |
3448 | res = -EIO; | |
3449 | goto errout;; | |
3450 | } | |
8acb0250 HM |
3451 | } |
3452 | ||
f432255e HMH |
3453 | errout: |
3454 | mutex_unlock(&brightness_mutex); | |
3455 | return res; | |
8acb0250 HM |
3456 | } |
3457 | ||
56b6aeb0 HMH |
3458 | static int brightness_read(char *p) |
3459 | { | |
3460 | int len = 0; | |
3461 | int level; | |
3462 | ||
3463 | if ((level = brightness_get(NULL)) < 0) { | |
3464 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
3465 | } else { | |
a3f104c0 | 3466 | len += sprintf(p + len, "level:\t\t%d\n", level); |
56b6aeb0 HMH |
3467 | len += sprintf(p + len, "commands:\tup, down\n"); |
3468 | len += sprintf(p + len, "commands:\tlevel <level>" | |
a3f104c0 HMH |
3469 | " (<level> is 0-%d)\n", |
3470 | (tp_features.bright_16levels) ? 15 : 7); | |
56b6aeb0 HMH |
3471 | } |
3472 | ||
3473 | return len; | |
3474 | } | |
3475 | ||
8acb0250 HM |
3476 | static int brightness_write(char *buf) |
3477 | { | |
3478 | int level; | |
4273af8d | 3479 | int rc; |
1da177e4 | 3480 | char *cmd; |
a3f104c0 | 3481 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
1da177e4 | 3482 | |
4273af8d HMH |
3483 | level = brightness_get(NULL); |
3484 | if (level < 0) | |
3485 | return level; | |
78f81cc4 | 3486 | |
4273af8d | 3487 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 3488 | if (strlencmp(cmd, "up") == 0) { |
4273af8d HMH |
3489 | if (level < max_level) |
3490 | level++; | |
78f81cc4 | 3491 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
3492 | if (level > 0) |
3493 | level--; | |
3494 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
3495 | level >= 0 && level <= max_level) { | |
3496 | /* new level set */ | |
78f81cc4 BD |
3497 | } else |
3498 | return -EINVAL; | |
78f81cc4 BD |
3499 | } |
3500 | ||
4273af8d HMH |
3501 | /* |
3502 | * Now we know what the final level should be, so we try to set it. | |
3503 | * Doing it this way makes the syscall restartable in case of EINTR | |
3504 | */ | |
3505 | rc = brightness_set(level); | |
3506 | return (rc == -EINTR)? ERESTARTSYS : rc; | |
78f81cc4 BD |
3507 | } |
3508 | ||
a5763f22 HMH |
3509 | static struct ibm_struct brightness_driver_data = { |
3510 | .name = "brightness", | |
3511 | .read = brightness_read, | |
3512 | .write = brightness_write, | |
3513 | .exit = brightness_exit, | |
3514 | }; | |
3515 | ||
56b6aeb0 HMH |
3516 | /************************************************************************* |
3517 | * Volume subdriver | |
3518 | */ | |
fb87a811 | 3519 | |
78f81cc4 BD |
3520 | static int volume_read(char *p) |
3521 | { | |
3522 | int len = 0; | |
3523 | u8 level; | |
3524 | ||
3525 | if (!acpi_ec_read(volume_offset, &level)) { | |
3526 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
3527 | } else { | |
3528 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
3529 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
3530 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
3531 | len += sprintf(p + len, "commands:\tlevel <level>" | |
3532 | " (<level> is 0-15)\n"); | |
3533 | } | |
3534 | ||
3535 | return len; | |
3536 | } | |
3537 | ||
78f81cc4 BD |
3538 | static int volume_write(char *buf) |
3539 | { | |
3540 | int cmos_cmd, inc, i; | |
3541 | u8 level, mute; | |
3542 | int new_level, new_mute; | |
3543 | char *cmd; | |
3544 | ||
3545 | while ((cmd = next_cmd(&buf))) { | |
3546 | if (!acpi_ec_read(volume_offset, &level)) | |
3547 | return -EIO; | |
3548 | new_mute = mute = level & 0x40; | |
3549 | new_level = level = level & 0xf; | |
3550 | ||
3551 | if (strlencmp(cmd, "up") == 0) { | |
3552 | if (mute) | |
3553 | new_mute = 0; | |
3554 | else | |
3555 | new_level = level == 15 ? 15 : level + 1; | |
3556 | } else if (strlencmp(cmd, "down") == 0) { | |
3557 | if (mute) | |
3558 | new_mute = 0; | |
3559 | else | |
3560 | new_level = level == 0 ? 0 : level - 1; | |
3561 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
3562 | new_level >= 0 && new_level <= 15) { | |
3563 | /* new_level set */ | |
3564 | } else if (strlencmp(cmd, "mute") == 0) { | |
3565 | new_mute = 0x40; | |
1da177e4 LT |
3566 | } else |
3567 | return -EINVAL; | |
3568 | ||
78f81cc4 | 3569 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 3570 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
3571 | inc = new_level > level ? 1 : -1; |
3572 | ||
c9bea99c | 3573 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
3574 | !acpi_ec_write(volume_offset, level))) |
3575 | return -EIO; | |
3576 | ||
3577 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 3578 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
3579 | !acpi_ec_write(volume_offset, i + inc)) |
3580 | return -EIO; | |
3581 | ||
c9bea99c | 3582 | if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
3583 | !acpi_ec_write(volume_offset, |
3584 | new_level + mute))) | |
3585 | return -EIO; | |
3586 | } | |
3587 | ||
3588 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 3589 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 | 3590 | |
c9bea99c | 3591 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
3592 | !acpi_ec_write(volume_offset, level + new_mute)) |
3593 | return -EIO; | |
3594 | } | |
3595 | } | |
3596 | ||
3597 | return 0; | |
3598 | } | |
3599 | ||
a5763f22 HMH |
3600 | static struct ibm_struct volume_driver_data = { |
3601 | .name = "volume", | |
3602 | .read = volume_read, | |
3603 | .write = volume_write, | |
3604 | }; | |
56b6aeb0 HMH |
3605 | |
3606 | /************************************************************************* | |
3607 | * Fan subdriver | |
3608 | */ | |
3609 | ||
3610 | /* | |
3611 | * FAN ACCESS MODES | |
3612 | * | |
efa27145 | 3613 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
3614 | * ACPI GFAN method: returns fan level |
3615 | * | |
efa27145 | 3616 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 3617 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 3618 | * |
efa27145 | 3619 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
3620 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
3621 | * | |
f51d1a39 HMH |
3622 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
3623 | * it for writing. | |
56b6aeb0 | 3624 | * |
efa27145 | 3625 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
3626 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
3627 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
3628 | * |
3629 | * Fan speed changes of any sort (including those caused by the | |
3630 | * disengaged mode) are usually done slowly by the firmware as the | |
3631 | * maximum ammount of fan duty cycle change per second seems to be | |
3632 | * limited. | |
3633 | * | |
3634 | * Reading is not available if GFAN exists. | |
3635 | * Writing is not available if SFAN exists. | |
3636 | * | |
3637 | * Bits | |
3638 | * 7 automatic mode engaged; | |
3639 | * (default operation mode of the ThinkPad) | |
3640 | * fan level is ignored in this mode. | |
f51d1a39 | 3641 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 3642 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
3643 | * the tachometer while the fan controller ramps up |
3644 | * the speed (which can take up to a few *minutes*). | |
3645 | * Speeds up fan to 100% duty-cycle, which is far above | |
3646 | * the standard RPM levels. It is not impossible that | |
3647 | * it could cause hardware damage. | |
56b6aeb0 HMH |
3648 | * 5-3 unused in some models. Extra bits for fan level |
3649 | * in others, but still useless as all values above | |
3650 | * 7 map to the same speed as level 7 in these models. | |
3651 | * 2-0 fan level (0..7 usually) | |
3652 | * 0x00 = stop | |
3653 | * 0x07 = max (set when temperatures critical) | |
3654 | * Some ThinkPads may have other levels, see | |
efa27145 | 3655 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
3656 | * |
3657 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
3658 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
3659 | * does so, its initial value is meaningless (0x07). | |
3660 | * | |
3661 | * For firmware bugs, refer to: | |
3662 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
3663 | * | |
3664 | * ---- | |
3665 | * | |
3666 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
3667 | * Main fan tachometer reading (in RPM) | |
3668 | * | |
3669 | * This register is present on all ThinkPads with a new-style EC, and | |
3670 | * it is known not to be present on the A21m/e, and T22, as there is | |
3671 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
3672 | * ThinkPads from this same time period (and earlier) probably lack the | |
3673 | * tachometer as well. | |
3674 | * | |
3675 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
3676 | * was never fixed by IBM to report the EC firmware version string | |
3677 | * probably support the tachometer (like the early X models), so | |
3678 | * detecting it is quite hard. We need more data to know for sure. | |
3679 | * | |
3680 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
3681 | * might result. | |
3682 | * | |
f51d1a39 HMH |
3683 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
3684 | * mode. | |
56b6aeb0 HMH |
3685 | * |
3686 | * For firmware bugs, refer to: | |
3687 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
3688 | * | |
efa27145 | 3689 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
3690 | * ThinkPad X31, X40, X41. Not available in the X60. |
3691 | * | |
3692 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
3693 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
3694 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
3695 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
3696 | * | |
3697 | * The speeds are stored on handles | |
3698 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
3699 | * | |
3700 | * There are three default speed sets, acessible as handles: | |
3701 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
3702 | * | |
3703 | * ACPI DSDT switches which set is in use depending on various | |
3704 | * factors. | |
3705 | * | |
efa27145 | 3706 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
3707 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
3708 | * but the ACPI tables just mention level 7. | |
3709 | */ | |
3710 | ||
69ba91cb HMH |
3711 | static enum fan_status_access_mode fan_status_access_mode; |
3712 | static enum fan_control_access_mode fan_control_access_mode; | |
3713 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 3714 | |
778b4d74 | 3715 | static u8 fan_control_initial_status; |
fe98a52c | 3716 | static u8 fan_control_desired_level; |
778b4d74 | 3717 | |
25c68a33 | 3718 | static void fan_watchdog_fire(struct work_struct *ignored); |
16663a87 | 3719 | static int fan_watchdog_maxinterval; |
25c68a33 | 3720 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 3721 | |
56b6aeb0 HMH |
3722 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
3723 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
3724 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
3725 | ); /* all others */ | |
3726 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
3727 | "JFNS", /* 770x-JL */ | |
3728 | ); /* all others */ | |
3729 | ||
fe98a52c HMH |
3730 | /* |
3731 | * SYSFS fan layout: hwmon compatible (device) | |
3732 | * | |
3733 | * pwm*_enable: | |
3734 | * 0: "disengaged" mode | |
3735 | * 1: manual mode | |
3736 | * 2: native EC "auto" mode (recommended, hardware default) | |
3737 | * | |
3738 | * pwm*: set speed in manual mode, ignored otherwise. | |
3739 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
3740 | * interpolation. | |
3741 | * | |
3742 | * fan*_input: tachometer reading, RPM | |
3743 | * | |
3744 | * | |
3745 | * SYSFS fan layout: extensions | |
3746 | * | |
3747 | * fan_watchdog (driver): | |
3748 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
3749 | */ | |
3750 | ||
3751 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
3752 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
3753 | struct device_attribute *attr, | |
3754 | char *buf) | |
3755 | { | |
3756 | int res, mode; | |
3757 | u8 status; | |
3758 | ||
3759 | res = fan_get_status_safe(&status); | |
3760 | if (res) | |
3761 | return res; | |
3762 | ||
3763 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
3764 | if (status != fan_control_initial_status) { | |
3765 | tp_features.fan_ctrl_status_undef = 0; | |
3766 | } else { | |
3767 | /* Return most likely status. In fact, it | |
3768 | * might be the only possible status */ | |
3769 | status = TP_EC_FAN_AUTO; | |
3770 | } | |
3771 | } | |
3772 | ||
3773 | if (status & TP_EC_FAN_FULLSPEED) { | |
3774 | mode = 0; | |
3775 | } else if (status & TP_EC_FAN_AUTO) { | |
3776 | mode = 2; | |
3777 | } else | |
3778 | mode = 1; | |
3779 | ||
3780 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
3781 | } | |
3782 | ||
3783 | static ssize_t fan_pwm1_enable_store(struct device *dev, | |
3784 | struct device_attribute *attr, | |
3785 | const char *buf, size_t count) | |
3786 | { | |
3787 | unsigned long t; | |
3788 | int res, level; | |
3789 | ||
3790 | if (parse_strtoul(buf, 2, &t)) | |
3791 | return -EINVAL; | |
3792 | ||
3793 | switch (t) { | |
3794 | case 0: | |
3795 | level = TP_EC_FAN_FULLSPEED; | |
3796 | break; | |
3797 | case 1: | |
3798 | level = TPACPI_FAN_LAST_LEVEL; | |
3799 | break; | |
3800 | case 2: | |
3801 | level = TP_EC_FAN_AUTO; | |
3802 | break; | |
3803 | case 3: | |
3804 | /* reserved for software-controlled auto mode */ | |
3805 | return -ENOSYS; | |
3806 | default: | |
3807 | return -EINVAL; | |
3808 | } | |
3809 | ||
3810 | res = fan_set_level_safe(level); | |
c573ddb9 HMH |
3811 | if (res == -ENXIO) |
3812 | return -EINVAL; | |
3813 | else if (res < 0) | |
fe98a52c HMH |
3814 | return res; |
3815 | ||
3816 | fan_watchdog_reset(); | |
3817 | ||
3818 | return count; | |
3819 | } | |
3820 | ||
3821 | static struct device_attribute dev_attr_fan_pwm1_enable = | |
3822 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
3823 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
3824 | ||
3825 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
3826 | static ssize_t fan_pwm1_show(struct device *dev, | |
3827 | struct device_attribute *attr, | |
3828 | char *buf) | |
3829 | { | |
3830 | int res; | |
3831 | u8 status; | |
3832 | ||
3833 | res = fan_get_status_safe(&status); | |
3834 | if (res) | |
3835 | return res; | |
3836 | ||
3837 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
3838 | if (status != fan_control_initial_status) { | |
3839 | tp_features.fan_ctrl_status_undef = 0; | |
3840 | } else { | |
3841 | status = TP_EC_FAN_AUTO; | |
3842 | } | |
3843 | } | |
3844 | ||
3845 | if ((status & | |
3846 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
3847 | status = fan_control_desired_level; | |
3848 | ||
3849 | if (status > 7) | |
3850 | status = 7; | |
3851 | ||
3852 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); | |
3853 | } | |
3854 | ||
3855 | static ssize_t fan_pwm1_store(struct device *dev, | |
3856 | struct device_attribute *attr, | |
3857 | const char *buf, size_t count) | |
3858 | { | |
3859 | unsigned long s; | |
3860 | int rc; | |
3861 | u8 status, newlevel; | |
3862 | ||
3863 | if (parse_strtoul(buf, 255, &s)) | |
3864 | return -EINVAL; | |
3865 | ||
3866 | /* scale down from 0-255 to 0-7 */ | |
3867 | newlevel = (s >> 5) & 0x07; | |
3868 | ||
fc589a3c HMH |
3869 | if (mutex_lock_interruptible(&fan_mutex)) |
3870 | return -ERESTARTSYS; | |
fe98a52c HMH |
3871 | |
3872 | rc = fan_get_status(&status); | |
3873 | if (!rc && (status & | |
3874 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
3875 | rc = fan_set_level(newlevel); | |
c573ddb9 HMH |
3876 | if (rc == -ENXIO) |
3877 | rc = -EINVAL; | |
3878 | else if (!rc) { | |
fe98a52c | 3879 | fan_update_desired_level(newlevel); |
ca4ac2f4 HMH |
3880 | fan_watchdog_reset(); |
3881 | } | |
fe98a52c HMH |
3882 | } |
3883 | ||
3884 | mutex_unlock(&fan_mutex); | |
3885 | return (rc)? rc : count; | |
3886 | } | |
3887 | ||
3888 | static struct device_attribute dev_attr_fan_pwm1 = | |
3889 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
3890 | fan_pwm1_show, fan_pwm1_store); | |
3891 | ||
3892 | /* sysfs fan fan1_input ------------------------------------------------ */ | |
3893 | static ssize_t fan_fan1_input_show(struct device *dev, | |
3894 | struct device_attribute *attr, | |
3895 | char *buf) | |
3896 | { | |
3897 | int res; | |
3898 | unsigned int speed; | |
3899 | ||
3900 | res = fan_get_speed(&speed); | |
3901 | if (res < 0) | |
3902 | return res; | |
3903 | ||
3904 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
3905 | } | |
3906 | ||
3907 | static struct device_attribute dev_attr_fan_fan1_input = | |
3908 | __ATTR(fan1_input, S_IRUGO, | |
3909 | fan_fan1_input_show, NULL); | |
3910 | ||
7fd40029 | 3911 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
fe98a52c HMH |
3912 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, |
3913 | char *buf) | |
3914 | { | |
3915 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
3916 | } | |
3917 | ||
3918 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, | |
3919 | const char *buf, size_t count) | |
3920 | { | |
3921 | unsigned long t; | |
3922 | ||
3923 | if (parse_strtoul(buf, 120, &t)) | |
3924 | return -EINVAL; | |
3925 | ||
ecf2a80a HMH |
3926 | if (!fan_control_allowed) |
3927 | return -EPERM; | |
3928 | ||
fe98a52c HMH |
3929 | fan_watchdog_maxinterval = t; |
3930 | fan_watchdog_reset(); | |
3931 | ||
3932 | return count; | |
3933 | } | |
3934 | ||
3935 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
3936 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
3937 | ||
3938 | /* --------------------------------------------------------------------- */ | |
3939 | static struct attribute *fan_attributes[] = { | |
3940 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
3941 | &dev_attr_fan_fan1_input.attr, | |
3942 | NULL | |
3943 | }; | |
3944 | ||
3945 | static const struct attribute_group fan_attr_group = { | |
3946 | .attrs = fan_attributes, | |
3947 | }; | |
3948 | ||
a5763f22 | 3949 | static int __init fan_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3950 | { |
fe98a52c HMH |
3951 | int rc; |
3952 | ||
fe08bc4b HMH |
3953 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); |
3954 | ||
40ca9fdf | 3955 | mutex_init(&fan_mutex); |
efa27145 HMH |
3956 | fan_status_access_mode = TPACPI_FAN_NONE; |
3957 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
69ba91cb | 3958 | fan_control_commands = 0; |
16663a87 | 3959 | fan_watchdog_maxinterval = 0; |
d8fd94d9 | 3960 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 3961 | fan_control_desired_level = 7; |
78f81cc4 | 3962 | |
8d376cd6 HMH |
3963 | IBM_ACPIHANDLE_INIT(fans); |
3964 | IBM_ACPIHANDLE_INIT(gfan); | |
3965 | IBM_ACPIHANDLE_INIT(sfan); | |
5fba344c | 3966 | |
78f81cc4 BD |
3967 | if (gfan_handle) { |
3968 | /* 570, 600e/x, 770e, 770x */ | |
efa27145 | 3969 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; |
69ba91cb HMH |
3970 | } else { |
3971 | /* all other ThinkPads: note that even old-style | |
3972 | * ThinkPad ECs supports the fan control register */ | |
778b4d74 HMH |
3973 | if (likely(acpi_ec_read(fan_status_offset, |
3974 | &fan_control_initial_status))) { | |
efa27145 | 3975 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; |
778b4d74 HMH |
3976 | |
3977 | /* In some ThinkPads, neither the EC nor the ACPI | |
3978 | * DSDT initialize the fan status, and it ends up | |
3979 | * being set to 0x07 when it *could* be either | |
3980 | * 0x07 or 0x80. | |
3981 | * | |
3982 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
3983 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
3984 | * to be buggy. */ | |
d5a2f2f1 HMH |
3985 | if (fan_control_initial_status == 0x07) { |
3986 | switch (thinkpad_id.ec_model) { | |
3987 | case 0x5931: /* TP-1Y */ | |
3988 | case 0x3837: /* TP-78 */ | |
3989 | case 0x3637: /* TP-76 */ | |
3990 | case 0x3037: /* TP-70 */ | |
3991 | printk(IBM_NOTICE | |
3992 | "fan_init: initial fan status is " | |
3993 | "unknown, assuming it is in auto " | |
3994 | "mode\n"); | |
3995 | tp_features.fan_ctrl_status_undef = 1; | |
3996 | ;; | |
3997 | } | |
778b4d74 | 3998 | } |
69ba91cb HMH |
3999 | } else { |
4000 | printk(IBM_ERR | |
4001 | "ThinkPad ACPI EC access misbehaving, " | |
4002 | "fan status and control unavailable\n"); | |
5fba344c | 4003 | return 1; |
69ba91cb HMH |
4004 | } |
4005 | } | |
78f81cc4 | 4006 | |
69ba91cb HMH |
4007 | if (sfan_handle) { |
4008 | /* 570, 770x-JL */ | |
efa27145 | 4009 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; |
1c6a334e | 4010 | fan_control_commands |= |
efa27145 | 4011 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; |
78f81cc4 | 4012 | } else { |
69ba91cb HMH |
4013 | if (!gfan_handle) { |
4014 | /* gfan without sfan means no fan control */ | |
4015 | /* all other models implement TP EC 0x2f control */ | |
4016 | ||
4017 | if (fans_handle) { | |
a8b7a662 | 4018 | /* X31, X40, X41 */ |
69ba91cb | 4019 | fan_control_access_mode = |
efa27145 | 4020 | TPACPI_FAN_WR_ACPI_FANS; |
69ba91cb | 4021 | fan_control_commands |= |
efa27145 HMH |
4022 | TPACPI_FAN_CMD_SPEED | |
4023 | TPACPI_FAN_CMD_LEVEL | | |
4024 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb | 4025 | } else { |
efa27145 | 4026 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; |
a12095c2 | 4027 | fan_control_commands |= |
efa27145 HMH |
4028 | TPACPI_FAN_CMD_LEVEL | |
4029 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
4030 | } |
4031 | } | |
4032 | } | |
4033 | ||
fe08bc4b HMH |
4034 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
4035 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
4036 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
4037 | fan_status_access_mode, fan_control_access_mode); | |
4038 | ||
ecf2a80a HMH |
4039 | /* fan control master switch */ |
4040 | if (!fan_control_allowed) { | |
4041 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
4042 | fan_control_commands = 0; | |
4043 | dbg_printk(TPACPI_DBG_INIT, | |
4044 | "fan control features disabled by parameter\n"); | |
4045 | } | |
4046 | ||
fe98a52c HMH |
4047 | /* update fan_control_desired_level */ |
4048 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
4049 | fan_get_status_safe(NULL); | |
4050 | ||
4051 | if (fan_status_access_mode != TPACPI_FAN_NONE || | |
4052 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
7fd40029 | 4053 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
fe98a52c HMH |
4054 | &fan_attr_group); |
4055 | if (!(rc < 0)) | |
7fd40029 | 4056 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, |
fe98a52c HMH |
4057 | &driver_attr_fan_watchdog); |
4058 | if (rc < 0) | |
4059 | return rc; | |
4060 | return 0; | |
4061 | } else | |
4062 | return 1; | |
4063 | } | |
4064 | ||
4065 | /* | |
4066 | * Call with fan_mutex held | |
4067 | */ | |
4068 | static void fan_update_desired_level(u8 status) | |
4069 | { | |
4070 | if ((status & | |
4071 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
4072 | if (status > 7) | |
4073 | fan_control_desired_level = 7; | |
4074 | else | |
4075 | fan_control_desired_level = status; | |
4076 | } | |
69ba91cb | 4077 | } |
78f81cc4 | 4078 | |
c52f0aa5 | 4079 | static int fan_get_status(u8 *status) |
78f81cc4 | 4080 | { |
c52f0aa5 | 4081 | u8 s; |
78f81cc4 | 4082 | |
a8b7a662 | 4083 | /* TODO: |
efa27145 | 4084 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ |
a8b7a662 | 4085 | |
3ef8a609 | 4086 | switch (fan_status_access_mode) { |
efa27145 | 4087 | case TPACPI_FAN_RD_ACPI_GFAN: |
78f81cc4 | 4088 | /* 570, 600e/x, 770e, 770x */ |
c52f0aa5 HMH |
4089 | |
4090 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) | |
1da177e4 | 4091 | return -EIO; |
78f81cc4 | 4092 | |
c52f0aa5 HMH |
4093 | if (likely(status)) |
4094 | *status = s & 0x07; | |
3ef8a609 HMH |
4095 | |
4096 | break; | |
4097 | ||
efa27145 | 4098 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 4099 | /* all except 570, 600e/x, 770e, 770x */ |
c52f0aa5 | 4100 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
3ef8a609 | 4101 | return -EIO; |
78f81cc4 | 4102 | |
c52f0aa5 HMH |
4103 | if (likely(status)) |
4104 | *status = s; | |
4105 | ||
4106 | break; | |
4107 | ||
4108 | default: | |
4109 | return -ENXIO; | |
78f81cc4 BD |
4110 | } |
4111 | ||
c52f0aa5 HMH |
4112 | return 0; |
4113 | } | |
4114 | ||
fe98a52c HMH |
4115 | static int fan_get_status_safe(u8 *status) |
4116 | { | |
4117 | int rc; | |
4118 | u8 s; | |
4119 | ||
fc589a3c HMH |
4120 | if (mutex_lock_interruptible(&fan_mutex)) |
4121 | return -ERESTARTSYS; | |
fe98a52c HMH |
4122 | rc = fan_get_status(&s); |
4123 | if (!rc) | |
4124 | fan_update_desired_level(s); | |
4125 | mutex_unlock(&fan_mutex); | |
4126 | ||
4127 | if (status) | |
4128 | *status = s; | |
4129 | ||
4130 | return rc; | |
4131 | } | |
4132 | ||
56b6aeb0 HMH |
4133 | static void fan_exit(void) |
4134 | { | |
99fba3f8 | 4135 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n"); |
fe98a52c HMH |
4136 | |
4137 | /* FIXME: can we really do this unconditionally? */ | |
7fd40029 HMH |
4138 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); |
4139 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, &driver_attr_fan_watchdog); | |
fe98a52c | 4140 | |
56b6aeb0 HMH |
4141 | cancel_delayed_work(&fan_watchdog_task); |
4142 | flush_scheduled_work(); | |
4143 | } | |
4144 | ||
c52f0aa5 HMH |
4145 | static int fan_get_speed(unsigned int *speed) |
4146 | { | |
4147 | u8 hi, lo; | |
4148 | ||
4149 | switch (fan_status_access_mode) { | |
efa27145 | 4150 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 4151 | /* all except 570, 600e/x, 770e, 770x */ |
3ef8a609 HMH |
4152 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
4153 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
4154 | return -EIO; | |
3ef8a609 | 4155 | |
c52f0aa5 HMH |
4156 | if (likely(speed)) |
4157 | *speed = (hi << 8) | lo; | |
4158 | ||
4159 | break; | |
4160 | ||
4161 | default: | |
4162 | return -ENXIO; | |
4163 | } | |
4164 | ||
4165 | return 0; | |
4166 | } | |
4167 | ||
56b6aeb0 | 4168 | static void fan_watchdog_fire(struct work_struct *ignored) |
16663a87 | 4169 | { |
99fba3f8 HMH |
4170 | int rc; |
4171 | ||
8fef502e HMH |
4172 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
4173 | return; | |
4174 | ||
56b6aeb0 | 4175 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); |
99fba3f8 HMH |
4176 | rc = fan_set_enable(); |
4177 | if (rc < 0) { | |
4178 | printk(IBM_ERR "fan watchdog: error %d while enabling fan, " | |
4179 | "will try again later...\n", -rc); | |
56b6aeb0 HMH |
4180 | /* reschedule for later */ |
4181 | fan_watchdog_reset(); | |
4182 | } | |
16663a87 HMH |
4183 | } |
4184 | ||
4185 | static void fan_watchdog_reset(void) | |
4186 | { | |
94954cc6 | 4187 | static int fan_watchdog_active; |
16663a87 | 4188 | |
4985cd0a HMH |
4189 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
4190 | return; | |
4191 | ||
16663a87 HMH |
4192 | if (fan_watchdog_active) |
4193 | cancel_delayed_work(&fan_watchdog_task); | |
4194 | ||
8fef502e HMH |
4195 | if (fan_watchdog_maxinterval > 0 && |
4196 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 HMH |
4197 | fan_watchdog_active = 1; |
4198 | if (!schedule_delayed_work(&fan_watchdog_task, | |
4199 | msecs_to_jiffies(fan_watchdog_maxinterval | |
4200 | * 1000))) { | |
4201 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
4202 | "watchdog will not trigger\n"); | |
4203 | } | |
4204 | } else | |
4205 | fan_watchdog_active = 0; | |
4206 | } | |
4207 | ||
18ad7996 | 4208 | static int fan_set_level(int level) |
78f81cc4 | 4209 | { |
ecf2a80a HMH |
4210 | if (!fan_control_allowed) |
4211 | return -EPERM; | |
4212 | ||
18ad7996 | 4213 | switch (fan_control_access_mode) { |
efa27145 | 4214 | case TPACPI_FAN_WR_ACPI_SFAN: |
18ad7996 | 4215 | if (level >= 0 && level <= 7) { |
fe98a52c | 4216 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
78f81cc4 | 4217 | return -EIO; |
18ad7996 HMH |
4218 | } else |
4219 | return -EINVAL; | |
4220 | break; | |
4221 | ||
efa27145 HMH |
4222 | case TPACPI_FAN_WR_ACPI_FANS: |
4223 | case TPACPI_FAN_WR_TPEC: | |
4224 | if ((level != TP_EC_FAN_AUTO) && | |
4225 | (level != TP_EC_FAN_FULLSPEED) && | |
a12095c2 HMH |
4226 | ((level < 0) || (level > 7))) |
4227 | return -EINVAL; | |
4228 | ||
eaa7571b HMH |
4229 | /* safety net should the EC not support AUTO |
4230 | * or FULLSPEED mode bits and just ignore them */ | |
4231 | if (level & TP_EC_FAN_FULLSPEED) | |
4232 | level |= 7; /* safety min speed 7 */ | |
4233 | else if (level & TP_EC_FAN_FULLSPEED) | |
4234 | level |= 4; /* safety min speed 4 */ | |
4235 | ||
fe98a52c | 4236 | if (!acpi_ec_write(fan_status_offset, level)) |
a12095c2 | 4237 | return -EIO; |
778b4d74 | 4238 | else |
d8fd94d9 | 4239 | tp_features.fan_ctrl_status_undef = 0; |
a12095c2 HMH |
4240 | break; |
4241 | ||
18ad7996 HMH |
4242 | default: |
4243 | return -ENXIO; | |
4244 | } | |
4245 | return 0; | |
4246 | } | |
4247 | ||
fe98a52c HMH |
4248 | static int fan_set_level_safe(int level) |
4249 | { | |
4250 | int rc; | |
4251 | ||
ecf2a80a HMH |
4252 | if (!fan_control_allowed) |
4253 | return -EPERM; | |
4254 | ||
fc589a3c HMH |
4255 | if (mutex_lock_interruptible(&fan_mutex)) |
4256 | return -ERESTARTSYS; | |
fe98a52c HMH |
4257 | |
4258 | if (level == TPACPI_FAN_LAST_LEVEL) | |
4259 | level = fan_control_desired_level; | |
4260 | ||
4261 | rc = fan_set_level(level); | |
4262 | if (!rc) | |
4263 | fan_update_desired_level(level); | |
4264 | ||
4265 | mutex_unlock(&fan_mutex); | |
4266 | return rc; | |
4267 | } | |
4268 | ||
18ad7996 HMH |
4269 | static int fan_set_enable(void) |
4270 | { | |
1c6a334e HMH |
4271 | u8 s; |
4272 | int rc; | |
4273 | ||
ecf2a80a HMH |
4274 | if (!fan_control_allowed) |
4275 | return -EPERM; | |
4276 | ||
fc589a3c HMH |
4277 | if (mutex_lock_interruptible(&fan_mutex)) |
4278 | return -ERESTARTSYS; | |
40ca9fdf | 4279 | |
18ad7996 | 4280 | switch (fan_control_access_mode) { |
efa27145 HMH |
4281 | case TPACPI_FAN_WR_ACPI_FANS: |
4282 | case TPACPI_FAN_WR_TPEC: | |
40ca9fdf HMH |
4283 | rc = fan_get_status(&s); |
4284 | if (rc < 0) | |
4285 | break; | |
1c6a334e HMH |
4286 | |
4287 | /* Don't go out of emergency fan mode */ | |
eaa7571b HMH |
4288 | if (s != 7) { |
4289 | s &= 0x07; | |
4290 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
4291 | } | |
1c6a334e HMH |
4292 | |
4293 | if (!acpi_ec_write(fan_status_offset, s)) | |
40ca9fdf HMH |
4294 | rc = -EIO; |
4295 | else { | |
d8fd94d9 | 4296 | tp_features.fan_ctrl_status_undef = 0; |
40ca9fdf HMH |
4297 | rc = 0; |
4298 | } | |
1c6a334e HMH |
4299 | break; |
4300 | ||
efa27145 | 4301 | case TPACPI_FAN_WR_ACPI_SFAN: |
40ca9fdf HMH |
4302 | rc = fan_get_status(&s); |
4303 | if (rc < 0) | |
4304 | break; | |
1c6a334e HMH |
4305 | |
4306 | s &= 0x07; | |
4307 | ||
4308 | /* Set fan to at least level 4 */ | |
eaa7571b | 4309 | s |= 4; |
1c6a334e HMH |
4310 | |
4311 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) | |
40ca9fdf HMH |
4312 | rc= -EIO; |
4313 | else | |
4314 | rc = 0; | |
18ad7996 HMH |
4315 | break; |
4316 | ||
4317 | default: | |
40ca9fdf | 4318 | rc = -ENXIO; |
18ad7996 | 4319 | } |
40ca9fdf HMH |
4320 | |
4321 | mutex_unlock(&fan_mutex); | |
4322 | return rc; | |
18ad7996 HMH |
4323 | } |
4324 | ||
4325 | static int fan_set_disable(void) | |
4326 | { | |
40ca9fdf HMH |
4327 | int rc; |
4328 | ||
ecf2a80a HMH |
4329 | if (!fan_control_allowed) |
4330 | return -EPERM; | |
4331 | ||
fc589a3c HMH |
4332 | if (mutex_lock_interruptible(&fan_mutex)) |
4333 | return -ERESTARTSYS; | |
40ca9fdf HMH |
4334 | |
4335 | rc = 0; | |
18ad7996 | 4336 | switch (fan_control_access_mode) { |
efa27145 HMH |
4337 | case TPACPI_FAN_WR_ACPI_FANS: |
4338 | case TPACPI_FAN_WR_TPEC: | |
18ad7996 | 4339 | if (!acpi_ec_write(fan_status_offset, 0x00)) |
40ca9fdf | 4340 | rc = -EIO; |
fe98a52c HMH |
4341 | else { |
4342 | fan_control_desired_level = 0; | |
d8fd94d9 | 4343 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 4344 | } |
18ad7996 HMH |
4345 | break; |
4346 | ||
efa27145 | 4347 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e | 4348 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) |
40ca9fdf | 4349 | rc = -EIO; |
fe98a52c HMH |
4350 | else |
4351 | fan_control_desired_level = 0; | |
1c6a334e HMH |
4352 | break; |
4353 | ||
18ad7996 | 4354 | default: |
40ca9fdf | 4355 | rc = -ENXIO; |
18ad7996 | 4356 | } |
40ca9fdf | 4357 | |
fe98a52c | 4358 | |
40ca9fdf HMH |
4359 | mutex_unlock(&fan_mutex); |
4360 | return rc; | |
56b6aeb0 HMH |
4361 | } |
4362 | ||
4363 | static int fan_set_speed(int speed) | |
4364 | { | |
40ca9fdf HMH |
4365 | int rc; |
4366 | ||
ecf2a80a HMH |
4367 | if (!fan_control_allowed) |
4368 | return -EPERM; | |
4369 | ||
fc589a3c HMH |
4370 | if (mutex_lock_interruptible(&fan_mutex)) |
4371 | return -ERESTARTSYS; | |
40ca9fdf HMH |
4372 | |
4373 | rc = 0; | |
56b6aeb0 | 4374 | switch (fan_control_access_mode) { |
efa27145 | 4375 | case TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
4376 | if (speed >= 0 && speed <= 65535) { |
4377 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
4378 | speed, speed, speed)) | |
40ca9fdf | 4379 | rc = -EIO; |
56b6aeb0 | 4380 | } else |
40ca9fdf | 4381 | rc = -EINVAL; |
56b6aeb0 HMH |
4382 | break; |
4383 | ||
4384 | default: | |
40ca9fdf | 4385 | rc = -ENXIO; |
56b6aeb0 | 4386 | } |
40ca9fdf HMH |
4387 | |
4388 | mutex_unlock(&fan_mutex); | |
4389 | return rc; | |
56b6aeb0 HMH |
4390 | } |
4391 | ||
4392 | static int fan_read(char *p) | |
4393 | { | |
4394 | int len = 0; | |
4395 | int rc; | |
4396 | u8 status; | |
4397 | unsigned int speed = 0; | |
4398 | ||
4399 | switch (fan_status_access_mode) { | |
efa27145 | 4400 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 4401 | /* 570, 600e/x, 770e, 770x */ |
fe98a52c | 4402 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
4403 | return rc; |
4404 | ||
4405 | len += sprintf(p + len, "status:\t\t%s\n" | |
4406 | "level:\t\t%d\n", | |
4407 | (status != 0) ? "enabled" : "disabled", status); | |
4408 | break; | |
4409 | ||
efa27145 | 4410 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 4411 | /* all except 570, 600e/x, 770e, 770x */ |
fe98a52c | 4412 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
4413 | return rc; |
4414 | ||
d8fd94d9 | 4415 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 4416 | if (status != fan_control_initial_status) |
d8fd94d9 | 4417 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
4418 | else |
4419 | /* Return most likely status. In fact, it | |
4420 | * might be the only possible status */ | |
efa27145 | 4421 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
4422 | } |
4423 | ||
4424 | len += sprintf(p + len, "status:\t\t%s\n", | |
4425 | (status != 0) ? "enabled" : "disabled"); | |
4426 | ||
56b6aeb0 HMH |
4427 | if ((rc = fan_get_speed(&speed)) < 0) |
4428 | return rc; | |
4429 | ||
4430 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
4431 | ||
efa27145 | 4432 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
4433 | /* Disengaged mode takes precedence */ |
4434 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 4435 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
4436 | len += sprintf(p + len, "level:\t\tauto\n"); |
4437 | else | |
4438 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
4439 | break; | |
4440 | ||
efa27145 | 4441 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
4442 | default: |
4443 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4444 | } | |
4445 | ||
efa27145 | 4446 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
4447 | len += sprintf(p + len, "commands:\tlevel <level>"); |
4448 | ||
4449 | switch (fan_control_access_mode) { | |
efa27145 | 4450 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4451 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
4452 | break; | |
4453 | ||
4454 | default: | |
4455 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 4456 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
4457 | break; |
4458 | } | |
4459 | } | |
18ad7996 | 4460 | |
efa27145 | 4461 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
4462 | len += sprintf(p + len, "commands:\tenable, disable\n" |
4463 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
4464 | "1-120 (seconds))\n"); | |
1da177e4 | 4465 | |
efa27145 | 4466 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
4467 | len += sprintf(p + len, "commands:\tspeed <speed>" |
4468 | " (<speed> is 0-65535)\n"); | |
4469 | ||
4470 | return len; | |
78f81cc4 BD |
4471 | } |
4472 | ||
18ad7996 HMH |
4473 | static int fan_write_cmd_level(const char *cmd, int *rc) |
4474 | { | |
4475 | int level; | |
4476 | ||
a12095c2 | 4477 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 4478 | level = TP_EC_FAN_AUTO; |
fe98a52c HMH |
4479 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
4480 | (strlencmp(cmd, "level full-speed") == 0)) | |
efa27145 | 4481 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 4482 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
4483 | return 0; |
4484 | ||
fe98a52c | 4485 | if ((*rc = fan_set_level_safe(level)) == -ENXIO) |
18ad7996 HMH |
4486 | printk(IBM_ERR "level command accepted for unsupported " |
4487 | "access mode %d", fan_control_access_mode); | |
4488 | ||
4489 | return 1; | |
4490 | } | |
4491 | ||
4492 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
4493 | { | |
4494 | if (strlencmp(cmd, "enable") != 0) | |
4495 | return 0; | |
4496 | ||
4497 | if ((*rc = fan_set_enable()) == -ENXIO) | |
4498 | printk(IBM_ERR "enable command accepted for unsupported " | |
4499 | "access mode %d", fan_control_access_mode); | |
4500 | ||
4501 | return 1; | |
4502 | } | |
4503 | ||
4504 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
4505 | { | |
4506 | if (strlencmp(cmd, "disable") != 0) | |
4507 | return 0; | |
4508 | ||
4509 | if ((*rc = fan_set_disable()) == -ENXIO) | |
4510 | printk(IBM_ERR "disable command accepted for unsupported " | |
4511 | "access mode %d", fan_control_access_mode); | |
4512 | ||
4513 | return 1; | |
4514 | } | |
4515 | ||
4516 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
4517 | { | |
4518 | int speed; | |
4519 | ||
a8b7a662 HMH |
4520 | /* TODO: |
4521 | * Support speed <low> <medium> <high> ? */ | |
4522 | ||
18ad7996 HMH |
4523 | if (sscanf(cmd, "speed %d", &speed) != 1) |
4524 | return 0; | |
4525 | ||
4526 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
4527 | printk(IBM_ERR "speed command accepted for unsupported " | |
4528 | "access mode %d", fan_control_access_mode); | |
4529 | ||
4530 | return 1; | |
4531 | } | |
4532 | ||
16663a87 HMH |
4533 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
4534 | { | |
4535 | int interval; | |
4536 | ||
4537 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
4538 | return 0; | |
4539 | ||
4540 | if (interval < 0 || interval > 120) | |
4541 | *rc = -EINVAL; | |
4542 | else | |
4543 | fan_watchdog_maxinterval = interval; | |
4544 | ||
4545 | return 1; | |
4546 | } | |
4547 | ||
18ad7996 HMH |
4548 | static int fan_write(char *buf) |
4549 | { | |
4550 | char *cmd; | |
4551 | int rc = 0; | |
4552 | ||
4553 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 4554 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 4555 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 4556 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 4557 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
4558 | fan_write_cmd_disable(cmd, &rc) || |
4559 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 4560 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
4561 | fan_write_cmd_speed(cmd, &rc)) |
4562 | ) | |
4563 | rc = -EINVAL; | |
16663a87 HMH |
4564 | else if (!rc) |
4565 | fan_watchdog_reset(); | |
18ad7996 HMH |
4566 | } |
4567 | ||
4568 | return rc; | |
4569 | } | |
4570 | ||
a5763f22 HMH |
4571 | static struct ibm_struct fan_driver_data = { |
4572 | .name = "fan", | |
4573 | .read = fan_read, | |
4574 | .write = fan_write, | |
4575 | .exit = fan_exit, | |
a5763f22 HMH |
4576 | }; |
4577 | ||
56b6aeb0 HMH |
4578 | /**************************************************************************** |
4579 | **************************************************************************** | |
4580 | * | |
4581 | * Infrastructure | |
4582 | * | |
4583 | **************************************************************************** | |
4584 | ****************************************************************************/ | |
4585 | ||
7fd40029 HMH |
4586 | /* sysfs name ---------------------------------------------------------- */ |
4587 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, | |
4588 | struct device_attribute *attr, | |
4589 | char *buf) | |
4590 | { | |
4591 | return snprintf(buf, PAGE_SIZE, "%s\n", IBM_NAME); | |
4592 | } | |
4593 | ||
4594 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = | |
4595 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); | |
4596 | ||
4597 | /* --------------------------------------------------------------------- */ | |
4598 | ||
56b6aeb0 | 4599 | /* /proc support */ |
94954cc6 | 4600 | static struct proc_dir_entry *proc_dir; |
16663a87 | 4601 | |
56b6aeb0 | 4602 | /* Subdriver registry */ |
a5763f22 HMH |
4603 | static LIST_HEAD(tpacpi_all_drivers); |
4604 | ||
1da177e4 | 4605 | |
56b6aeb0 HMH |
4606 | /* |
4607 | * Module and infrastructure proble, init and exit handling | |
4608 | */ | |
1da177e4 | 4609 | |
fe08bc4b | 4610 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 4611 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 4612 | { |
a5763f22 | 4613 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 4614 | |
a5763f22 | 4615 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
4616 | } |
4617 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
4618 | ||
a5763f22 | 4619 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
4620 | { |
4621 | int ret; | |
a5763f22 | 4622 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
4623 | struct proc_dir_entry *entry; |
4624 | ||
a5763f22 HMH |
4625 | BUG_ON(ibm == NULL); |
4626 | ||
4627 | INIT_LIST_HEAD(&ibm->all_drivers); | |
4628 | ||
92641177 | 4629 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
4630 | return 0; |
4631 | ||
fe08bc4b HMH |
4632 | dbg_printk(TPACPI_DBG_INIT, |
4633 | "probing for %s\n", ibm->name); | |
4634 | ||
a5763f22 HMH |
4635 | if (iibm->init) { |
4636 | ret = iibm->init(iibm); | |
5fba344c HMH |
4637 | if (ret > 0) |
4638 | return 0; /* probe failed */ | |
4639 | if (ret) | |
1da177e4 | 4640 | return ret; |
a5763f22 | 4641 | |
92641177 | 4642 | ibm->flags.init_called = 1; |
1da177e4 LT |
4643 | } |
4644 | ||
8d376cd6 HMH |
4645 | if (ibm->acpi) { |
4646 | if (ibm->acpi->hid) { | |
4647 | ret = register_tpacpi_subdriver(ibm); | |
4648 | if (ret) | |
4649 | goto err_out; | |
4650 | } | |
5fba344c | 4651 | |
8d376cd6 HMH |
4652 | if (ibm->acpi->notify) { |
4653 | ret = setup_acpi_notify(ibm); | |
4654 | if (ret == -ENODEV) { | |
4655 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
4656 | ibm->name); | |
4657 | ret = 0; | |
4658 | goto err_out; | |
4659 | } | |
4660 | if (ret < 0) | |
4661 | goto err_out; | |
5fba344c | 4662 | } |
5fba344c HMH |
4663 | } |
4664 | ||
fe08bc4b HMH |
4665 | dbg_printk(TPACPI_DBG_INIT, |
4666 | "%s installed\n", ibm->name); | |
4667 | ||
78f81cc4 BD |
4668 | if (ibm->read) { |
4669 | entry = create_proc_entry(ibm->name, | |
4670 | S_IFREG | S_IRUGO | S_IWUSR, | |
4671 | proc_dir); | |
4672 | if (!entry) { | |
4673 | printk(IBM_ERR "unable to create proc entry %s\n", | |
4674 | ibm->name); | |
5fba344c HMH |
4675 | ret = -ENODEV; |
4676 | goto err_out; | |
78f81cc4 BD |
4677 | } |
4678 | entry->owner = THIS_MODULE; | |
4679 | entry->data = ibm; | |
8d376cd6 | 4680 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 4681 | if (ibm->write) |
8d376cd6 | 4682 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 4683 | ibm->flags.proc_created = 1; |
78f81cc4 | 4684 | } |
1da177e4 | 4685 | |
a5763f22 HMH |
4686 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
4687 | ||
1da177e4 | 4688 | return 0; |
5fba344c HMH |
4689 | |
4690 | err_out: | |
fe08bc4b HMH |
4691 | dbg_printk(TPACPI_DBG_INIT, |
4692 | "%s: at error exit path with result %d\n", | |
4693 | ibm->name, ret); | |
4694 | ||
5fba344c HMH |
4695 | ibm_exit(ibm); |
4696 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
4697 | } |
4698 | ||
4699 | static void ibm_exit(struct ibm_struct *ibm) | |
4700 | { | |
fe08bc4b | 4701 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); |
a5763f22 HMH |
4702 | |
4703 | list_del_init(&ibm->all_drivers); | |
4704 | ||
8d376cd6 | 4705 | if (ibm->flags.acpi_notify_installed) { |
fe08bc4b HMH |
4706 | dbg_printk(TPACPI_DBG_EXIT, |
4707 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8d376cd6 HMH |
4708 | BUG_ON(!ibm->acpi); |
4709 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
4710 | ibm->acpi->type, | |
4711 | dispatch_acpi_notify); | |
4712 | ibm->flags.acpi_notify_installed = 0; | |
4713 | ibm->flags.acpi_notify_installed = 0; | |
5fba344c | 4714 | } |
1da177e4 | 4715 | |
92641177 | 4716 | if (ibm->flags.proc_created) { |
fe08bc4b HMH |
4717 | dbg_printk(TPACPI_DBG_EXIT, |
4718 | "%s: remove_proc_entry\n", ibm->name); | |
1da177e4 | 4719 | remove_proc_entry(ibm->name, proc_dir); |
92641177 | 4720 | ibm->flags.proc_created = 0; |
5fba344c | 4721 | } |
1da177e4 | 4722 | |
8d376cd6 | 4723 | if (ibm->flags.acpi_driver_registered) { |
fe08bc4b HMH |
4724 | dbg_printk(TPACPI_DBG_EXIT, |
4725 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8d376cd6 HMH |
4726 | BUG_ON(!ibm->acpi); |
4727 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
4728 | kfree(ibm->acpi->driver); | |
4729 | ibm->acpi->driver = NULL; | |
4730 | ibm->flags.acpi_driver_registered = 0; | |
5fba344c HMH |
4731 | } |
4732 | ||
92641177 | 4733 | if (ibm->flags.init_called && ibm->exit) { |
5fba344c | 4734 | ibm->exit(); |
92641177 | 4735 | ibm->flags.init_called = 0; |
1da177e4 | 4736 | } |
a5763f22 HMH |
4737 | |
4738 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
1da177e4 LT |
4739 | } |
4740 | ||
56b6aeb0 HMH |
4741 | /* Probing */ |
4742 | ||
d5a2f2f1 | 4743 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 4744 | { |
1855256c | 4745 | const struct dmi_device *dev = NULL; |
56b6aeb0 | 4746 | char ec_fw_string[18]; |
1da177e4 | 4747 | |
d5a2f2f1 HMH |
4748 | if (!tp) |
4749 | return; | |
4750 | ||
4751 | memset(tp, 0, sizeof(*tp)); | |
4752 | ||
4753 | if (dmi_name_in_vendors("IBM")) | |
4754 | tp->vendor = PCI_VENDOR_ID_IBM; | |
4755 | else if (dmi_name_in_vendors("LENOVO")) | |
4756 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
4757 | else | |
4758 | return; | |
4759 | ||
4760 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
4761 | GFP_KERNEL); | |
4762 | if (!tp->bios_version_str) | |
4763 | return; | |
4764 | tp->bios_model = tp->bios_version_str[0] | |
4765 | | (tp->bios_version_str[1] << 8); | |
4766 | ||
56b6aeb0 HMH |
4767 | /* |
4768 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
4769 | * X32 or newer, all Z series; Some models must have an | |
4770 | * up-to-date BIOS or they will not be detected. | |
4771 | * | |
4772 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
4773 | */ | |
4774 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
4775 | if (sscanf(dev->name, | |
4776 | "IBM ThinkPad Embedded Controller -[%17c", | |
4777 | ec_fw_string) == 1) { | |
4778 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
4779 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
4780 | |
4781 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
4782 | tp->ec_model = ec_fw_string[0] | |
4783 | | (ec_fw_string[1] << 8); | |
4784 | break; | |
78f81cc4 | 4785 | } |
1da177e4 | 4786 | } |
d5a2f2f1 HMH |
4787 | |
4788 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
4789 | GFP_KERNEL); | |
4790 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
4791 | kfree(tp->model_str); | |
4792 | tp->model_str = NULL; | |
4793 | } | |
1da177e4 LT |
4794 | } |
4795 | ||
5fba344c HMH |
4796 | static int __init probe_for_thinkpad(void) |
4797 | { | |
4798 | int is_thinkpad; | |
4799 | ||
4800 | if (acpi_disabled) | |
4801 | return -ENODEV; | |
4802 | ||
4803 | /* | |
4804 | * Non-ancient models have better DMI tagging, but very old models | |
4805 | * don't. | |
4806 | */ | |
d5a2f2f1 | 4807 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
4808 | |
4809 | /* ec is required because many other handles are relative to it */ | |
8d376cd6 | 4810 | IBM_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
4811 | if (!ec_handle) { |
4812 | if (is_thinkpad) | |
4813 | printk(IBM_ERR | |
4814 | "Not yet supported ThinkPad detected!\n"); | |
4815 | return -ENODEV; | |
4816 | } | |
4817 | ||
0dcef77c HMH |
4818 | /* |
4819 | * Risks a regression on very old machines, but reduces potential | |
4820 | * false positives a damn great deal | |
4821 | */ | |
4822 | if (!is_thinkpad) | |
d5a2f2f1 | 4823 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
4824 | |
4825 | if (!is_thinkpad && !force_load) | |
4826 | return -ENODEV; | |
4827 | ||
5fba344c HMH |
4828 | return 0; |
4829 | } | |
4830 | ||
4831 | ||
56b6aeb0 | 4832 | /* Module init, exit, parameters */ |
1da177e4 | 4833 | |
a5763f22 HMH |
4834 | static struct ibm_init_struct ibms_init[] __initdata = { |
4835 | { | |
4836 | .init = thinkpad_acpi_driver_init, | |
4837 | .data = &thinkpad_acpi_driver_data, | |
4838 | }, | |
4839 | { | |
4840 | .init = hotkey_init, | |
4841 | .data = &hotkey_driver_data, | |
4842 | }, | |
4843 | { | |
4844 | .init = bluetooth_init, | |
4845 | .data = &bluetooth_driver_data, | |
4846 | }, | |
4847 | { | |
4848 | .init = wan_init, | |
4849 | .data = &wan_driver_data, | |
4850 | }, | |
4851 | { | |
4852 | .init = video_init, | |
4853 | .data = &video_driver_data, | |
4854 | }, | |
4855 | { | |
4856 | .init = light_init, | |
4857 | .data = &light_driver_data, | |
4858 | }, | |
4859 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
4860 | { | |
4861 | .init = dock_init, | |
4862 | .data = &dock_driver_data[0], | |
4863 | }, | |
4864 | { | |
d94a7f16 | 4865 | .init = dock_init2, |
a5763f22 HMH |
4866 | .data = &dock_driver_data[1], |
4867 | }, | |
4868 | #endif | |
4869 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
4870 | { | |
4871 | .init = bay_init, | |
4872 | .data = &bay_driver_data, | |
4873 | }, | |
4874 | #endif | |
4875 | { | |
4876 | .init = cmos_init, | |
4877 | .data = &cmos_driver_data, | |
4878 | }, | |
4879 | { | |
4880 | .init = led_init, | |
4881 | .data = &led_driver_data, | |
4882 | }, | |
4883 | { | |
4884 | .init = beep_init, | |
4885 | .data = &beep_driver_data, | |
4886 | }, | |
4887 | { | |
4888 | .init = thermal_init, | |
4889 | .data = &thermal_driver_data, | |
4890 | }, | |
4891 | { | |
4892 | .data = &ecdump_driver_data, | |
4893 | }, | |
4894 | { | |
4895 | .init = brightness_init, | |
4896 | .data = &brightness_driver_data, | |
4897 | }, | |
4898 | { | |
4899 | .data = &volume_driver_data, | |
4900 | }, | |
4901 | { | |
4902 | .init = fan_init, | |
4903 | .data = &fan_driver_data, | |
4904 | }, | |
4905 | }; | |
4906 | ||
3945ac36 | 4907 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
4908 | { |
4909 | unsigned int i; | |
a5763f22 | 4910 | struct ibm_struct *ibm; |
1da177e4 | 4911 | |
59f91ff1 HMH |
4912 | if (!kp || !kp->name || !val) |
4913 | return -EINVAL; | |
4914 | ||
a5763f22 HMH |
4915 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
4916 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
4917 | WARN_ON(ibm == NULL); |
4918 | ||
4919 | if (!ibm || !ibm->name) | |
4920 | continue; | |
a5763f22 HMH |
4921 | |
4922 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
4923 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 4924 | return -ENOSPC; |
a5763f22 HMH |
4925 | strcpy(ibms_init[i].param, val); |
4926 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
4927 | return 0; |
4928 | } | |
a5763f22 | 4929 | } |
1da177e4 | 4930 | |
1da177e4 LT |
4931 | return -EINVAL; |
4932 | } | |
4933 | ||
56b6aeb0 HMH |
4934 | static int experimental; |
4935 | module_param(experimental, int, 0); | |
4936 | ||
132ce091 HMH |
4937 | static u32 dbg_level; |
4938 | module_param_named(debug, dbg_level, uint, 0); | |
4939 | ||
0dcef77c | 4940 | static int force_load; |
86cc9445 | 4941 | module_param(force_load, bool, 0); |
0dcef77c | 4942 | |
ecf2a80a | 4943 | static int fan_control_allowed; |
86cc9445 | 4944 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
ecf2a80a | 4945 | |
24d3b774 HMH |
4946 | static int brightness_mode; |
4947 | module_param_named(brightness_mode, brightness_mode, int, 0); | |
4948 | ||
87cc537a HMH |
4949 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
4950 | module_param(brightness_enable, uint, 0); | |
4951 | ||
ff80f137 HMH |
4952 | static unsigned int hotkey_report_mode; |
4953 | module_param(hotkey_report_mode, uint, 0); | |
4954 | ||
1da177e4 LT |
4955 | #define IBM_PARAM(feature) \ |
4956 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
4957 | ||
78f81cc4 BD |
4958 | IBM_PARAM(hotkey); |
4959 | IBM_PARAM(bluetooth); | |
4960 | IBM_PARAM(video); | |
4961 | IBM_PARAM(light); | |
85998248 | 4962 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
78f81cc4 | 4963 | IBM_PARAM(dock); |
63e5f248 | 4964 | #endif |
85998248 | 4965 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 | 4966 | IBM_PARAM(bay); |
85998248 | 4967 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
78f81cc4 BD |
4968 | IBM_PARAM(cmos); |
4969 | IBM_PARAM(led); | |
4970 | IBM_PARAM(beep); | |
4971 | IBM_PARAM(ecdump); | |
4972 | IBM_PARAM(brightness); | |
4973 | IBM_PARAM(volume); | |
4974 | IBM_PARAM(fan); | |
4975 | ||
1def7115 | 4976 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
4977 | { |
4978 | int ret, i; | |
4979 | ||
8fef502e HMH |
4980 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
4981 | ||
ff80f137 HMH |
4982 | /* Parameter checking */ |
4983 | if (hotkey_report_mode > 2) | |
4984 | return -EINVAL; | |
4985 | ||
54ae1501 | 4986 | /* Driver-level probe */ |
d5a2f2f1 HMH |
4987 | |
4988 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 4989 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
4990 | if (ret) { |
4991 | thinkpad_acpi_module_exit(); | |
5fba344c | 4992 | return ret; |
d5a2f2f1 | 4993 | } |
1da177e4 | 4994 | |
54ae1501 | 4995 | /* Driver initialization */ |
d5a2f2f1 | 4996 | |
8d376cd6 HMH |
4997 | IBM_ACPIHANDLE_INIT(ecrd); |
4998 | IBM_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 4999 | |
8d376cd6 | 5000 | proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir); |
1da177e4 | 5001 | if (!proc_dir) { |
8d376cd6 | 5002 | printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR); |
1def7115 | 5003 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
5004 | return -ENODEV; |
5005 | } | |
5006 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 5007 | |
54ae1501 HMH |
5008 | ret = platform_driver_register(&tpacpi_pdriver); |
5009 | if (ret) { | |
7fd40029 | 5010 | printk(IBM_ERR "unable to register main platform driver\n"); |
54ae1501 HMH |
5011 | thinkpad_acpi_module_exit(); |
5012 | return ret; | |
5013 | } | |
ac36393d HMH |
5014 | tp_features.platform_drv_registered = 1; |
5015 | ||
7fd40029 HMH |
5016 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
5017 | if (ret) { | |
5018 | printk(IBM_ERR "unable to register hwmon platform driver\n"); | |
5019 | thinkpad_acpi_module_exit(); | |
5020 | return ret; | |
5021 | } | |
5022 | tp_features.sensors_pdrv_registered = 1; | |
5023 | ||
176750d6 | 5024 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
5025 | if (!ret) { |
5026 | tp_features.platform_drv_attrs_registered = 1; | |
5027 | ret = tpacpi_create_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
5028 | } | |
176750d6 HMH |
5029 | if (ret) { |
5030 | printk(IBM_ERR "unable to create sysfs driver attributes\n"); | |
5031 | thinkpad_acpi_module_exit(); | |
5032 | return ret; | |
5033 | } | |
2369cc94 | 5034 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 5035 | |
54ae1501 HMH |
5036 | |
5037 | /* Device initialization */ | |
5038 | tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1, | |
5039 | NULL, 0); | |
5040 | if (IS_ERR(tpacpi_pdev)) { | |
5041 | ret = PTR_ERR(tpacpi_pdev); | |
5042 | tpacpi_pdev = NULL; | |
5043 | printk(IBM_ERR "unable to register platform device\n"); | |
5044 | thinkpad_acpi_module_exit(); | |
5045 | return ret; | |
5046 | } | |
7fd40029 HMH |
5047 | tpacpi_sensors_pdev = platform_device_register_simple( |
5048 | IBM_HWMON_DRVR_NAME, | |
5049 | -1, NULL, 0); | |
5050 | if (IS_ERR(tpacpi_sensors_pdev)) { | |
5051 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
5052 | tpacpi_sensors_pdev = NULL; | |
5053 | printk(IBM_ERR "unable to register hwmon platform device\n"); | |
5054 | thinkpad_acpi_module_exit(); | |
5055 | return ret; | |
5056 | } | |
5057 | ret = device_create_file(&tpacpi_sensors_pdev->dev, | |
5058 | &dev_attr_thinkpad_acpi_pdev_name); | |
5059 | if (ret) { | |
5060 | printk(IBM_ERR | |
5061 | "unable to create sysfs hwmon device attributes\n"); | |
5062 | thinkpad_acpi_module_exit(); | |
5063 | return ret; | |
5064 | } | |
5065 | tp_features.sensors_pdev_attrs_registered = 1; | |
5066 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); | |
54ae1501 HMH |
5067 | if (IS_ERR(tpacpi_hwmon)) { |
5068 | ret = PTR_ERR(tpacpi_hwmon); | |
5069 | tpacpi_hwmon = NULL; | |
5070 | printk(IBM_ERR "unable to register hwmon device\n"); | |
5071 | thinkpad_acpi_module_exit(); | |
5072 | return ret; | |
5073 | } | |
8523ed6f | 5074 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
5075 | tpacpi_inputdev = input_allocate_device(); |
5076 | if (!tpacpi_inputdev) { | |
5077 | printk(IBM_ERR "unable to allocate input device\n"); | |
5078 | thinkpad_acpi_module_exit(); | |
5079 | return -ENOMEM; | |
5080 | } else { | |
5081 | /* Prepare input device, but don't register */ | |
5082 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
5083 | tpacpi_inputdev->phys = IBM_DRVR_NAME "/input0"; | |
5084 | tpacpi_inputdev->id.bustype = BUS_HOST; | |
edf0e0e5 HMH |
5085 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
5086 | thinkpad_id.vendor : | |
5087 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
5088 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
5089 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
5090 | } | |
a5763f22 HMH |
5091 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
5092 | ret = ibm_init(&ibms_init[i]); | |
5093 | if (ret >= 0 && *ibms_init[i].param) | |
5094 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 5095 | if (ret < 0) { |
1def7115 | 5096 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
5097 | return ret; |
5098 | } | |
5099 | } | |
7f5d1cd6 HMH |
5100 | ret = input_register_device(tpacpi_inputdev); |
5101 | if (ret < 0) { | |
5102 | printk(IBM_ERR "unable to register input device\n"); | |
5103 | thinkpad_acpi_module_exit(); | |
5104 | return ret; | |
5105 | } else { | |
5106 | tp_features.input_device_registered = 1; | |
5107 | } | |
1da177e4 | 5108 | |
8fef502e | 5109 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
5110 | return 0; |
5111 | } | |
5112 | ||
1def7115 | 5113 | static void thinkpad_acpi_module_exit(void) |
56b6aeb0 | 5114 | { |
a5763f22 HMH |
5115 | struct ibm_struct *ibm, *itmp; |
5116 | ||
8fef502e HMH |
5117 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; |
5118 | ||
a5763f22 HMH |
5119 | list_for_each_entry_safe_reverse(ibm, itmp, |
5120 | &tpacpi_all_drivers, | |
5121 | all_drivers) { | |
5122 | ibm_exit(ibm); | |
5123 | } | |
56b6aeb0 | 5124 | |
a5763f22 | 5125 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); |
56b6aeb0 | 5126 | |
7f5d1cd6 HMH |
5127 | if (tpacpi_inputdev) { |
5128 | if (tp_features.input_device_registered) | |
5129 | input_unregister_device(tpacpi_inputdev); | |
5130 | else | |
5131 | input_free_device(tpacpi_inputdev); | |
5132 | } | |
5133 | ||
54ae1501 HMH |
5134 | if (tpacpi_hwmon) |
5135 | hwmon_device_unregister(tpacpi_hwmon); | |
5136 | ||
7fd40029 HMH |
5137 | if (tp_features.sensors_pdev_attrs_registered) |
5138 | device_remove_file(&tpacpi_sensors_pdev->dev, | |
5139 | &dev_attr_thinkpad_acpi_pdev_name); | |
5140 | if (tpacpi_sensors_pdev) | |
5141 | platform_device_unregister(tpacpi_sensors_pdev); | |
54ae1501 HMH |
5142 | if (tpacpi_pdev) |
5143 | platform_device_unregister(tpacpi_pdev); | |
5144 | ||
2369cc94 HMH |
5145 | if (tp_features.sensors_pdrv_attrs_registered) |
5146 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
ac36393d HMH |
5147 | if (tp_features.platform_drv_attrs_registered) |
5148 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
5149 | ||
7fd40029 HMH |
5150 | if (tp_features.sensors_pdrv_registered) |
5151 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
5152 | ||
ac36393d HMH |
5153 | if (tp_features.platform_drv_registered) |
5154 | platform_driver_unregister(&tpacpi_pdriver); | |
54ae1501 | 5155 | |
56b6aeb0 | 5156 | if (proc_dir) |
8d376cd6 | 5157 | remove_proc_entry(IBM_PROC_DIR, acpi_root_dir); |
56b6aeb0 | 5158 | |
d5a2f2f1 HMH |
5159 | kfree(thinkpad_id.bios_version_str); |
5160 | kfree(thinkpad_id.ec_version_str); | |
5161 | kfree(thinkpad_id.model_str); | |
56b6aeb0 HMH |
5162 | } |
5163 | ||
1def7115 HMH |
5164 | module_init(thinkpad_acpi_module_init); |
5165 | module_exit(thinkpad_acpi_module_exit); |