]>
Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
643f12db | 2 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 LT |
3 | * |
4 | * | |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
a62bc916 | 6 | * Copyright (C) 2006-2007 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
1da177e4 LT |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
a62bc916 HMH |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
21 | * 02110-1301, USA. | |
78f81cc4 BD |
22 | */ |
23 | ||
643f12db | 24 | #define IBM_VERSION "0.14" |
741553c2 | 25 | #define TPACPI_SYSFS_VERSION 0x010000 |
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 | ||
56b6aeb0 HMH |
120 | /**************************************************************************** |
121 | **************************************************************************** | |
122 | * | |
123 | * ACPI Helpers and device model | |
124 | * | |
125 | **************************************************************************** | |
126 | ****************************************************************************/ | |
127 | ||
128 | /************************************************************************* | |
129 | * ACPI basic handles | |
130 | */ | |
1da177e4 | 131 | |
94954cc6 | 132 | static acpi_handle root_handle; |
1da177e4 LT |
133 | |
134 | #define IBM_HANDLE(object, parent, paths...) \ | |
135 | static acpi_handle object##_handle; \ | |
136 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 137 | static char *object##_path; \ |
1da177e4 LT |
138 | static char *object##_paths[] = { paths } |
139 | ||
78f81cc4 BD |
140 | IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
141 | "\\_SB.PCI.ISA.EC", /* 570 */ | |
142 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
143 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
144 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
145 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
146 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 147 | ); |
78f81cc4 | 148 | |
56b6aeb0 HMH |
149 | IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
150 | IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 151 | |
56b6aeb0 HMH |
152 | |
153 | /************************************************************************* | |
154 | * Misc ACPI handles | |
155 | */ | |
78f81cc4 BD |
156 | |
157 | IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ | |
158 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ | |
159 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 160 | ); /* all others */ |
78f81cc4 BD |
161 | |
162 | IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ | |
163 | "^HKEY", /* R30, R31 */ | |
164 | "HKEY", /* all others */ | |
56b6aeb0 | 165 | ); /* 570 */ |
78f81cc4 | 166 | |
78f81cc4 | 167 | |
56b6aeb0 HMH |
168 | /************************************************************************* |
169 | * ACPI helpers | |
a8b7a662 HMH |
170 | */ |
171 | ||
1da177e4 LT |
172 | static int acpi_evalf(acpi_handle handle, |
173 | void *res, char *method, char *fmt, ...) | |
174 | { | |
175 | char *fmt0 = fmt; | |
78f81cc4 BD |
176 | struct acpi_object_list params; |
177 | union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; | |
178 | struct acpi_buffer result, *resultp; | |
179 | union acpi_object out_obj; | |
180 | acpi_status status; | |
181 | va_list ap; | |
182 | char res_type; | |
183 | int success; | |
184 | int quiet; | |
1da177e4 LT |
185 | |
186 | if (!*fmt) { | |
187 | printk(IBM_ERR "acpi_evalf() called with empty format\n"); | |
188 | return 0; | |
189 | } | |
190 | ||
191 | if (*fmt == 'q') { | |
192 | quiet = 1; | |
193 | fmt++; | |
194 | } else | |
195 | quiet = 0; | |
196 | ||
197 | res_type = *(fmt++); | |
198 | ||
199 | params.count = 0; | |
200 | params.pointer = &in_objs[0]; | |
201 | ||
202 | va_start(ap, fmt); | |
203 | while (*fmt) { | |
204 | char c = *(fmt++); | |
205 | switch (c) { | |
206 | case 'd': /* int */ | |
207 | in_objs[params.count].integer.value = va_arg(ap, int); | |
208 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
209 | break; | |
78f81cc4 | 210 | /* add more types as needed */ |
1da177e4 LT |
211 | default: |
212 | printk(IBM_ERR "acpi_evalf() called " | |
213 | "with invalid format character '%c'\n", c); | |
214 | return 0; | |
215 | } | |
216 | } | |
217 | va_end(ap); | |
218 | ||
78f81cc4 BD |
219 | if (res_type != 'v') { |
220 | result.length = sizeof(out_obj); | |
221 | result.pointer = &out_obj; | |
222 | resultp = &result; | |
223 | } else | |
224 | resultp = NULL; | |
1da177e4 | 225 | |
78f81cc4 | 226 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
227 | |
228 | switch (res_type) { | |
78f81cc4 | 229 | case 'd': /* int */ |
1da177e4 LT |
230 | if (res) |
231 | *(int *)res = out_obj.integer.value; | |
232 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
233 | break; | |
78f81cc4 | 234 | case 'v': /* void */ |
1da177e4 LT |
235 | success = status == AE_OK; |
236 | break; | |
78f81cc4 | 237 | /* add more types as needed */ |
1da177e4 LT |
238 | default: |
239 | printk(IBM_ERR "acpi_evalf() called " | |
240 | "with invalid format character '%c'\n", res_type); | |
241 | return 0; | |
242 | } | |
243 | ||
56b6aeb0 HMH |
244 | if (!success && !quiet) |
245 | printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", | |
246 | method, fmt0, status); | |
247 | ||
248 | return success; | |
249 | } | |
250 | ||
251 | static void __unused acpi_print_int(acpi_handle handle, char *method) | |
252 | { | |
253 | int i; | |
254 | ||
255 | if (acpi_evalf(handle, &i, method, "d")) | |
256 | printk(IBM_INFO "%s = 0x%x\n", method, i); | |
257 | else | |
258 | printk(IBM_ERR "error calling %s\n", method); | |
259 | } | |
260 | ||
261 | static int acpi_ec_read(int i, u8 * p) | |
262 | { | |
263 | int v; | |
264 | ||
265 | if (ecrd_handle) { | |
266 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
267 | return 0; | |
268 | *p = v; | |
269 | } else { | |
270 | if (ec_read(i, p) < 0) | |
271 | return 0; | |
272 | } | |
273 | ||
274 | return 1; | |
275 | } | |
276 | ||
277 | static int acpi_ec_write(int i, u8 v) | |
278 | { | |
279 | if (ecwr_handle) { | |
280 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
281 | return 0; | |
282 | } else { | |
283 | if (ec_write(i, v) < 0) | |
284 | return 0; | |
285 | } | |
286 | ||
287 | return 1; | |
288 | } | |
289 | ||
290 | static int _sta(acpi_handle handle) | |
291 | { | |
292 | int status; | |
293 | ||
294 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
295 | status = 0; | |
296 | ||
297 | return status; | |
298 | } | |
299 | ||
c9bea99c HMH |
300 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
301 | { | |
302 | if (!cmos_handle) | |
303 | return -ENXIO; | |
304 | ||
305 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
306 | return -EIO; | |
307 | ||
308 | return 0; | |
309 | } | |
310 | ||
56b6aeb0 HMH |
311 | /************************************************************************* |
312 | * ACPI device model | |
313 | */ | |
314 | ||
8d376cd6 | 315 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
316 | acpi_handle *handle, acpi_handle parent, |
317 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
318 | { |
319 | int i; | |
320 | acpi_status status; | |
321 | ||
5ae930e6 HMH |
322 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
323 | name); | |
324 | ||
56b6aeb0 HMH |
325 | for (i = 0; i < num_paths; i++) { |
326 | status = acpi_get_handle(parent, paths[i], handle); | |
327 | if (ACPI_SUCCESS(status)) { | |
328 | *path = paths[i]; | |
5ae930e6 HMH |
329 | dbg_printk(TPACPI_DBG_INIT, |
330 | "Found ACPI handle %s for %s\n", | |
331 | *path, name); | |
56b6aeb0 HMH |
332 | return; |
333 | } | |
334 | } | |
335 | ||
5ae930e6 HMH |
336 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
337 | name); | |
56b6aeb0 HMH |
338 | *handle = NULL; |
339 | } | |
340 | ||
8d376cd6 | 341 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
342 | { |
343 | struct ibm_struct *ibm = data; | |
344 | ||
8d376cd6 | 345 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
346 | return; |
347 | ||
8d376cd6 | 348 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
349 | } |
350 | ||
8d376cd6 | 351 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
352 | { |
353 | acpi_status status; | |
5ae930e6 | 354 | int rc; |
56b6aeb0 | 355 | |
8d376cd6 HMH |
356 | BUG_ON(!ibm->acpi); |
357 | ||
358 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
359 | return 0; |
360 | ||
5ae930e6 | 361 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
362 | "setting up ACPI notify for %s\n", ibm->name); |
363 | ||
5ae930e6 HMH |
364 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
365 | if (rc < 0) { | |
366 | printk(IBM_ERR "acpi_bus_get_device(%s) failed: %d\n", | |
367 | ibm->name, rc); | |
56b6aeb0 HMH |
368 | return -ENODEV; |
369 | } | |
370 | ||
8d376cd6 HMH |
371 | acpi_driver_data(ibm->acpi->device) = ibm; |
372 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
643f12db HMH |
373 | IBM_ACPI_EVENT_PREFIX, |
374 | ibm->name); | |
56b6aeb0 | 375 | |
8d376cd6 HMH |
376 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
377 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
378 | if (ACPI_FAILURE(status)) { |
379 | if (status == AE_ALREADY_EXISTS) { | |
380 | printk(IBM_NOTICE "another device driver is already handling %s events\n", | |
381 | ibm->name); | |
382 | } else { | |
383 | printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", | |
384 | ibm->name, status); | |
385 | } | |
386 | return -ENODEV; | |
387 | } | |
8d376cd6 | 388 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
389 | return 0; |
390 | } | |
391 | ||
8d376cd6 | 392 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
393 | { |
394 | return 0; | |
395 | } | |
396 | ||
6700121b | 397 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 398 | { |
5ae930e6 | 399 | int rc; |
56b6aeb0 | 400 | |
fe08bc4b HMH |
401 | dbg_printk(TPACPI_DBG_INIT, |
402 | "registering %s as an ACPI driver\n", ibm->name); | |
403 | ||
8d376cd6 HMH |
404 | BUG_ON(!ibm->acpi); |
405 | ||
406 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
407 | if (!ibm->acpi->driver) { | |
5fba344c HMH |
408 | printk(IBM_ERR "kzalloc(ibm->driver) failed\n"); |
409 | return -ENOMEM; | |
56b6aeb0 HMH |
410 | } |
411 | ||
8d376cd6 HMH |
412 | sprintf(ibm->acpi->driver->name, "%s_%s", IBM_NAME, ibm->name); |
413 | ibm->acpi->driver->ids = ibm->acpi->hid; | |
414 | ibm->acpi->driver->ops.add = &tpacpi_device_add; | |
56b6aeb0 | 415 | |
5ae930e6 HMH |
416 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
417 | if (rc < 0) { | |
56b6aeb0 | 418 | printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
5ae930e6 | 419 | ibm->acpi->hid, rc); |
8d376cd6 HMH |
420 | kfree(ibm->acpi->driver); |
421 | ibm->acpi->driver = NULL; | |
5ae930e6 | 422 | } else if (!rc) |
8d376cd6 | 423 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 424 | |
5ae930e6 | 425 | return rc; |
56b6aeb0 HMH |
426 | } |
427 | ||
428 | ||
429 | /**************************************************************************** | |
430 | **************************************************************************** | |
431 | * | |
432 | * Procfs Helpers | |
433 | * | |
434 | **************************************************************************** | |
435 | ****************************************************************************/ | |
436 | ||
8d376cd6 HMH |
437 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
438 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
439 | { |
440 | struct ibm_struct *ibm = data; | |
441 | int len; | |
442 | ||
443 | if (!ibm || !ibm->read) | |
444 | return -EINVAL; | |
445 | ||
446 | len = ibm->read(page); | |
447 | if (len < 0) | |
448 | return len; | |
449 | ||
450 | if (len <= off + count) | |
451 | *eof = 1; | |
452 | *start = page + off; | |
453 | len -= off; | |
454 | if (len > count) | |
455 | len = count; | |
456 | if (len < 0) | |
457 | len = 0; | |
458 | ||
459 | return len; | |
460 | } | |
461 | ||
8d376cd6 HMH |
462 | static int dispatch_procfs_write(struct file *file, |
463 | const char __user * userbuf, | |
464 | unsigned long count, void *data) | |
56b6aeb0 HMH |
465 | { |
466 | struct ibm_struct *ibm = data; | |
467 | char *kernbuf; | |
468 | int ret; | |
469 | ||
470 | if (!ibm || !ibm->write) | |
471 | return -EINVAL; | |
472 | ||
473 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
474 | if (!kernbuf) | |
475 | return -ENOMEM; | |
1da177e4 | 476 | |
56b6aeb0 HMH |
477 | if (copy_from_user(kernbuf, userbuf, count)) { |
478 | kfree(kernbuf); | |
479 | return -EFAULT; | |
480 | } | |
1da177e4 | 481 | |
56b6aeb0 HMH |
482 | kernbuf[count] = 0; |
483 | strcat(kernbuf, ","); | |
484 | ret = ibm->write(kernbuf); | |
485 | if (ret == 0) | |
486 | ret = count; | |
1da177e4 | 487 | |
56b6aeb0 HMH |
488 | kfree(kernbuf); |
489 | ||
490 | return ret; | |
1da177e4 LT |
491 | } |
492 | ||
493 | static char *next_cmd(char **cmds) | |
494 | { | |
495 | char *start = *cmds; | |
496 | char *end; | |
497 | ||
498 | while ((end = strchr(start, ',')) && end == start) | |
499 | start = end + 1; | |
500 | ||
501 | if (!end) | |
502 | return NULL; | |
503 | ||
504 | *end = 0; | |
505 | *cmds = end + 1; | |
506 | return start; | |
507 | } | |
508 | ||
56b6aeb0 | 509 | |
54ae1501 HMH |
510 | /**************************************************************************** |
511 | **************************************************************************** | |
512 | * | |
7f5d1cd6 | 513 | * Device model: input, hwmon and platform |
54ae1501 HMH |
514 | * |
515 | **************************************************************************** | |
516 | ****************************************************************************/ | |
517 | ||
94954cc6 HMH |
518 | static struct platform_device *tpacpi_pdev; |
519 | static struct class_device *tpacpi_hwmon; | |
7f5d1cd6 | 520 | static struct input_dev *tpacpi_inputdev; |
54ae1501 | 521 | |
e295e850 HMH |
522 | |
523 | static int tpacpi_resume_handler(struct platform_device *pdev) | |
524 | { | |
525 | struct ibm_struct *ibm, *itmp; | |
526 | ||
527 | list_for_each_entry_safe(ibm, itmp, | |
528 | &tpacpi_all_drivers, | |
529 | all_drivers) { | |
530 | if (ibm->resume) | |
531 | (ibm->resume)(); | |
532 | } | |
533 | ||
534 | return 0; | |
535 | } | |
536 | ||
54ae1501 HMH |
537 | static struct platform_driver tpacpi_pdriver = { |
538 | .driver = { | |
539 | .name = IBM_DRVR_NAME, | |
540 | .owner = THIS_MODULE, | |
541 | }, | |
e295e850 | 542 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
543 | }; |
544 | ||
545 | ||
176750d6 HMH |
546 | /************************************************************************* |
547 | * thinkpad-acpi driver attributes | |
548 | */ | |
549 | ||
550 | /* interface_version --------------------------------------------------- */ | |
551 | static ssize_t tpacpi_driver_interface_version_show( | |
552 | struct device_driver *drv, | |
553 | char *buf) | |
554 | { | |
555 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); | |
556 | } | |
557 | ||
558 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
559 | tpacpi_driver_interface_version_show, NULL); | |
560 | ||
561 | /* debug_level --------------------------------------------------------- */ | |
562 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
563 | char *buf) | |
564 | { | |
565 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
566 | } | |
567 | ||
568 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
569 | const char *buf, size_t count) | |
570 | { | |
571 | unsigned long t; | |
176750d6 | 572 | |
7252374a | 573 | if (parse_strtoul(buf, 0xffff, &t)) |
176750d6 HMH |
574 | return -EINVAL; |
575 | ||
576 | dbg_level = t; | |
577 | ||
578 | return count; | |
579 | } | |
580 | ||
581 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
582 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
583 | ||
584 | /* version ------------------------------------------------------------- */ | |
585 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
586 | char *buf) | |
587 | { | |
588 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", IBM_DESC, IBM_VERSION); | |
589 | } | |
590 | ||
591 | static DRIVER_ATTR(version, S_IRUGO, | |
592 | tpacpi_driver_version_show, NULL); | |
593 | ||
594 | /* --------------------------------------------------------------------- */ | |
595 | ||
596 | static struct driver_attribute* tpacpi_driver_attributes[] = { | |
597 | &driver_attr_debug_level, &driver_attr_version, | |
598 | &driver_attr_interface_version, | |
599 | }; | |
600 | ||
601 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
602 | { | |
603 | int i, res; | |
604 | ||
605 | i = 0; | |
606 | res = 0; | |
607 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
608 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
609 | i++; | |
610 | } | |
611 | ||
612 | return res; | |
613 | } | |
614 | ||
615 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
616 | { | |
617 | int i; | |
618 | ||
619 | for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) | |
620 | driver_remove_file(drv, tpacpi_driver_attributes[i]); | |
621 | } | |
622 | ||
7252374a HMH |
623 | /************************************************************************* |
624 | * sysfs support helpers | |
625 | */ | |
626 | ||
627 | struct attribute_set_obj { | |
628 | struct attribute_set s; | |
629 | struct attribute *a; | |
630 | } __attribute__((packed)); | |
631 | ||
632 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
633 | const char* name) | |
634 | { | |
635 | struct attribute_set_obj *sobj; | |
636 | ||
637 | if (max_members == 0) | |
638 | return NULL; | |
639 | ||
640 | /* Allocates space for implicit NULL at the end too */ | |
641 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
642 | max_members * sizeof(struct attribute *), | |
643 | GFP_KERNEL); | |
644 | if (!sobj) | |
645 | return NULL; | |
646 | sobj->s.max_members = max_members; | |
647 | sobj->s.group.attrs = &sobj->a; | |
648 | sobj->s.group.name = name; | |
649 | ||
650 | return &sobj->s; | |
651 | } | |
652 | ||
653 | /* not multi-threaded safe, use it in a single thread per set */ | |
654 | static int add_to_attr_set(struct attribute_set* s, struct attribute *attr) | |
655 | { | |
656 | if (!s || !attr) | |
657 | return -EINVAL; | |
658 | ||
659 | if (s->members >= s->max_members) | |
660 | return -ENOMEM; | |
661 | ||
662 | s->group.attrs[s->members] = attr; | |
663 | s->members++; | |
664 | ||
665 | return 0; | |
666 | } | |
667 | ||
668 | static int add_many_to_attr_set(struct attribute_set* s, | |
669 | struct attribute **attr, | |
670 | unsigned int count) | |
671 | { | |
672 | int i, res; | |
673 | ||
674 | for (i = 0; i < count; i++) { | |
675 | res = add_to_attr_set(s, attr[i]); | |
676 | if (res) | |
677 | return res; | |
678 | } | |
679 | ||
680 | return 0; | |
681 | } | |
682 | ||
683 | static void delete_attr_set(struct attribute_set* s, struct kobject *kobj) | |
684 | { | |
685 | sysfs_remove_group(kobj, &s->group); | |
686 | destroy_attr_set(s); | |
687 | } | |
688 | ||
689 | static int parse_strtoul(const char *buf, | |
690 | unsigned long max, unsigned long *value) | |
691 | { | |
692 | char *endp; | |
693 | ||
694 | *value = simple_strtoul(buf, &endp, 0); | |
695 | while (*endp && isspace(*endp)) | |
696 | endp++; | |
697 | if (*endp || *value > max) | |
698 | return -EINVAL; | |
699 | ||
700 | return 0; | |
701 | } | |
702 | ||
56b6aeb0 HMH |
703 | /**************************************************************************** |
704 | **************************************************************************** | |
705 | * | |
706 | * Subdrivers | |
707 | * | |
708 | **************************************************************************** | |
709 | ****************************************************************************/ | |
710 | ||
711 | /************************************************************************* | |
142cfc90 | 712 | * thinkpad-acpi init subdriver |
56b6aeb0 HMH |
713 | */ |
714 | ||
a5763f22 | 715 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
716 | { |
717 | printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); | |
718 | printk(IBM_INFO "%s\n", IBM_URL); | |
719 | ||
d5a2f2f1 HMH |
720 | printk(IBM_INFO "ThinkPad BIOS %s, EC %s\n", |
721 | (thinkpad_id.bios_version_str) ? | |
722 | thinkpad_id.bios_version_str : "unknown", | |
723 | (thinkpad_id.ec_version_str) ? | |
724 | thinkpad_id.ec_version_str : "unknown"); | |
725 | ||
726 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
727 | printk(IBM_INFO "%s %s\n", | |
728 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? | |
729 | "IBM" : ((thinkpad_id.vendor == | |
730 | PCI_VENDOR_ID_LENOVO) ? | |
731 | "Lenovo" : "Unknown vendor"), | |
732 | thinkpad_id.model_str); | |
3945ac36 | 733 | |
1da177e4 LT |
734 | return 0; |
735 | } | |
736 | ||
643f12db | 737 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
738 | { |
739 | int len = 0; | |
740 | ||
741 | len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); | |
742 | len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); | |
743 | ||
744 | return len; | |
745 | } | |
746 | ||
a5763f22 HMH |
747 | static struct ibm_struct thinkpad_acpi_driver_data = { |
748 | .name = "driver", | |
749 | .read = thinkpad_acpi_driver_read, | |
750 | }; | |
751 | ||
56b6aeb0 HMH |
752 | /************************************************************************* |
753 | * Hotkey subdriver | |
754 | */ | |
755 | ||
78f81cc4 | 756 | static int hotkey_orig_status; |
ae92bd17 | 757 | static u32 hotkey_orig_mask; |
9b010de5 | 758 | static u32 hotkey_all_mask; |
6a38abbf HMH |
759 | static u32 hotkey_reserved_mask; |
760 | ||
761 | static u16 hotkey_keycode_map[] = { | |
762 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
1a343760 HMH |
763 | KEY_FN_F1, KEY_FN_F2, KEY_FN_F3, KEY_SLEEP, |
764 | KEY_FN_F5, KEY_FN_F6, KEY_FN_F7, KEY_FN_F8, | |
765 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
6a38abbf HMH |
766 | /* Scan codes 0x0C to 0x0F: Other ACPI HKEY hot keys */ |
767 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ | |
768 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
769 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
770 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ | |
771 | /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */ | |
772 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ | |
773 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ | |
774 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ | |
775 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
776 | KEY_RESERVED, /* 0x14: VOLUME UP */ | |
777 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
778 | KEY_RESERVED, /* 0x16: MUTE */ | |
779 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ | |
780 | /* (assignments unknown, please report if found) */ | |
781 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
782 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
783 | }; | |
78f81cc4 | 784 | |
94954cc6 | 785 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 786 | |
74941a69 HMH |
787 | static int hotkey_get_wlsw(int *status) |
788 | { | |
789 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
790 | return -EIO; | |
791 | return 0; | |
792 | } | |
793 | ||
a0416420 HMH |
794 | /* sysfs hotkey enable ------------------------------------------------- */ |
795 | static ssize_t hotkey_enable_show(struct device *dev, | |
796 | struct device_attribute *attr, | |
797 | char *buf) | |
798 | { | |
ae92bd17 HMH |
799 | int res, status; |
800 | u32 mask; | |
a0416420 HMH |
801 | |
802 | res = hotkey_get(&status, &mask); | |
803 | if (res) | |
804 | return res; | |
805 | ||
806 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
807 | } | |
808 | ||
809 | static ssize_t hotkey_enable_store(struct device *dev, | |
810 | struct device_attribute *attr, | |
811 | const char *buf, size_t count) | |
812 | { | |
813 | unsigned long t; | |
ae92bd17 HMH |
814 | int res, status; |
815 | u32 mask; | |
a0416420 HMH |
816 | |
817 | if (parse_strtoul(buf, 1, &t)) | |
818 | return -EINVAL; | |
819 | ||
820 | res = hotkey_get(&status, &mask); | |
821 | if (!res) | |
822 | res = hotkey_set(t, mask); | |
823 | ||
824 | return (res) ? res : count; | |
825 | } | |
826 | ||
827 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 828 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
829 | hotkey_enable_show, hotkey_enable_store); |
830 | ||
831 | /* sysfs hotkey mask --------------------------------------------------- */ | |
832 | static ssize_t hotkey_mask_show(struct device *dev, | |
833 | struct device_attribute *attr, | |
834 | char *buf) | |
835 | { | |
ae92bd17 HMH |
836 | int res, status; |
837 | u32 mask; | |
a0416420 HMH |
838 | |
839 | res = hotkey_get(&status, &mask); | |
840 | if (res) | |
841 | return res; | |
842 | ||
ae92bd17 | 843 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", mask); |
a0416420 HMH |
844 | } |
845 | ||
846 | static ssize_t hotkey_mask_store(struct device *dev, | |
847 | struct device_attribute *attr, | |
848 | const char *buf, size_t count) | |
849 | { | |
850 | unsigned long t; | |
ae92bd17 HMH |
851 | int res, status; |
852 | u32 mask; | |
a0416420 | 853 | |
ae92bd17 | 854 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
855 | return -EINVAL; |
856 | ||
857 | res = hotkey_get(&status, &mask); | |
858 | if (!res) | |
859 | hotkey_set(status, t); | |
860 | ||
861 | return (res) ? res : count; | |
862 | } | |
863 | ||
864 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 865 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
866 | hotkey_mask_show, hotkey_mask_store); |
867 | ||
868 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
869 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
870 | struct device_attribute *attr, | |
871 | char *buf) | |
872 | { | |
873 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
874 | } | |
875 | ||
876 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 877 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
878 | |
879 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
880 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
881 | struct device_attribute *attr, | |
882 | char *buf) | |
883 | { | |
ae92bd17 | 884 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
885 | } |
886 | ||
887 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 888 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 889 | |
9b010de5 HMH |
890 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
891 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
892 | struct device_attribute *attr, | |
893 | char *buf) | |
894 | { | |
895 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_all_mask); | |
896 | } | |
897 | ||
898 | static struct device_attribute dev_attr_hotkey_all_mask = | |
899 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
900 | ||
901 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
902 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
903 | struct device_attribute *attr, | |
904 | char *buf) | |
905 | { | |
906 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
907 | hotkey_all_mask & ~hotkey_reserved_mask); | |
908 | } | |
909 | ||
910 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
911 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
912 | hotkey_recommended_mask_show, NULL); | |
913 | ||
74941a69 HMH |
914 | /* sysfs hotkey radio_sw ----------------------------------------------- */ |
915 | static ssize_t hotkey_radio_sw_show(struct device *dev, | |
916 | struct device_attribute *attr, | |
917 | char *buf) | |
918 | { | |
919 | int res, s; | |
920 | res = hotkey_get_wlsw(&s); | |
921 | if (res < 0) | |
922 | return res; | |
923 | ||
924 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
925 | } | |
926 | ||
927 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
928 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
929 | ||
a0416420 HMH |
930 | /* --------------------------------------------------------------------- */ |
931 | ||
932 | static struct attribute *hotkey_mask_attributes[] = { | |
933 | &dev_attr_hotkey_mask.attr, | |
934 | &dev_attr_hotkey_bios_enabled.attr, | |
935 | &dev_attr_hotkey_bios_mask.attr, | |
9b010de5 HMH |
936 | &dev_attr_hotkey_all_mask.attr, |
937 | &dev_attr_hotkey_recommended_mask.attr, | |
a0416420 HMH |
938 | }; |
939 | ||
a5763f22 | 940 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 941 | { |
6a38abbf | 942 | int res, i; |
74941a69 | 943 | int status; |
b86c4722 | 944 | |
fe08bc4b HMH |
945 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
946 | ||
6a38abbf HMH |
947 | BUG_ON(!tpacpi_inputdev); |
948 | ||
8d376cd6 | 949 | IBM_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 950 | mutex_init(&hotkey_mutex); |
5fba344c | 951 | |
56b6aeb0 | 952 | /* hotkey not supported on 570 */ |
d8fd94d9 | 953 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 954 | |
fe08bc4b | 955 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 956 | str_supported(tp_features.hotkey)); |
fe08bc4b | 957 | |
d8fd94d9 | 958 | if (tp_features.hotkey) { |
74941a69 | 959 | hotkey_dev_attributes = create_attr_set(7, NULL); |
a0416420 HMH |
960 | if (!hotkey_dev_attributes) |
961 | return -ENOMEM; | |
962 | res = add_to_attr_set(hotkey_dev_attributes, | |
963 | &dev_attr_hotkey_enable.attr); | |
964 | if (res) | |
965 | return res; | |
966 | ||
56b6aeb0 HMH |
967 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
968 | A30, R30, R31, T20-22, X20-21, X22-24 */ | |
d8fd94d9 HMH |
969 | tp_features.hotkey_mask = |
970 | acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); | |
56b6aeb0 | 971 | |
fe08bc4b | 972 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 973 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 974 | |
9b010de5 HMH |
975 | if (tp_features.hotkey_mask) { |
976 | /* MHKA available in A31, R40, R40e, T4x, X31, and later */ | |
977 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
978 | "MHKA", "qd")) | |
979 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
980 | } | |
981 | ||
b86c4722 | 982 | res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask); |
a0416420 HMH |
983 | if (!res && tp_features.hotkey_mask) { |
984 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
985 | hotkey_mask_attributes, | |
986 | ARRAY_SIZE(hotkey_mask_attributes)); | |
987 | } | |
74941a69 HMH |
988 | |
989 | /* Not all thinkpads have a hardware radio switch */ | |
990 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
991 | tp_features.hotkey_wlsw = 1; | |
992 | printk(IBM_INFO | |
993 | "radio switch found; radios are %s\n", | |
994 | enabled(status, 0)); | |
995 | res = add_to_attr_set(hotkey_dev_attributes, | |
996 | &dev_attr_hotkey_radio_sw.attr); | |
997 | } | |
998 | ||
a0416420 HMH |
999 | if (!res) |
1000 | res = register_attr_set_with_sysfs( | |
1001 | hotkey_dev_attributes, | |
1002 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
1003 | if (res) |
1004 | return res; | |
6a38abbf | 1005 | |
1a343760 HMH |
1006 | #ifndef CONFIG_THINKPAD_ACPI_INPUT_ENABLED |
1007 | for (i = 0; i < 12; i++) | |
1008 | hotkey_keycode_map[i] = KEY_UNKNOWN; | |
1009 | #endif /* ! CONFIG_THINKPAD_ACPI_INPUT_ENABLED */ | |
1010 | ||
6a38abbf HMH |
1011 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
1012 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
1013 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
1014 | tpacpi_inputdev->keycodesize = sizeof(hotkey_keycode_map[0]); | |
1015 | tpacpi_inputdev->keycodemax = ARRAY_SIZE(hotkey_keycode_map); | |
1016 | tpacpi_inputdev->keycode = &hotkey_keycode_map; | |
1017 | for (i = 0; i < ARRAY_SIZE(hotkey_keycode_map); i++) { | |
1018 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
1019 | set_bit(hotkey_keycode_map[i], | |
1020 | tpacpi_inputdev->keybit); | |
1021 | } else { | |
1022 | if (i < sizeof(hotkey_reserved_mask)*8) | |
1023 | hotkey_reserved_mask |= 1 << i; | |
1024 | } | |
1025 | } | |
1026 | ||
5c29d58f HMH |
1027 | if (tp_features.hotkey_wlsw) { |
1028 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
1029 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
1030 | } | |
1031 | ||
1a343760 HMH |
1032 | #ifdef CONFIG_THINKPAD_ACPI_INPUT_ENABLED |
1033 | dbg_printk(TPACPI_DBG_INIT, | |
1034 | "enabling hot key handling\n"); | |
1035 | res = hotkey_set(1, (hotkey_all_mask & ~hotkey_reserved_mask) | |
1036 | | hotkey_orig_mask); | |
1037 | if (res) | |
1038 | return res; | |
1039 | #endif /* CONFIG_THINKPAD_ACPI_INPUT_ENABLED */ | |
56b6aeb0 HMH |
1040 | } |
1041 | ||
d8fd94d9 | 1042 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
1043 | } |
1044 | ||
1045 | static void hotkey_exit(void) | |
1046 | { | |
b86c4722 HMH |
1047 | int res; |
1048 | ||
d8fd94d9 | 1049 | if (tp_features.hotkey) { |
fe08bc4b | 1050 | dbg_printk(TPACPI_DBG_EXIT, "restoring original hotkey mask\n"); |
b86c4722 HMH |
1051 | res = hotkey_set(hotkey_orig_status, hotkey_orig_mask); |
1052 | if (res) | |
1053 | printk(IBM_ERR "failed to restore hotkey to BIOS defaults\n"); | |
5fba344c | 1054 | } |
a0416420 HMH |
1055 | |
1056 | if (hotkey_dev_attributes) { | |
1057 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
1058 | hotkey_dev_attributes = NULL; | |
1059 | } | |
56b6aeb0 HMH |
1060 | } |
1061 | ||
6a38abbf HMH |
1062 | static void tpacpi_input_send_key(unsigned int scancode, |
1063 | unsigned int keycode) | |
1064 | { | |
1065 | if (keycode != KEY_RESERVED) { | |
1066 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1067 | if (keycode == KEY_UNKNOWN) | |
1068 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1069 | scancode); | |
1070 | input_sync(tpacpi_inputdev); | |
1071 | ||
1072 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1073 | if (keycode == KEY_UNKNOWN) | |
1074 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1075 | scancode); | |
1076 | input_sync(tpacpi_inputdev); | |
1077 | } | |
1078 | } | |
1079 | ||
5c29d58f HMH |
1080 | static void tpacpi_input_send_radiosw(void) |
1081 | { | |
1082 | int wlsw; | |
1083 | ||
1084 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) | |
1085 | input_report_switch(tpacpi_inputdev, | |
1086 | SW_RADIO, !!wlsw); | |
1087 | } | |
1088 | ||
56b6aeb0 HMH |
1089 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
1090 | { | |
6a38abbf HMH |
1091 | u32 hkey; |
1092 | unsigned int keycode, scancode; | |
1093 | int sendacpi = 1; | |
56b6aeb0 | 1094 | |
ae92bd17 | 1095 | if (event == 0x80 && acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { |
6a38abbf HMH |
1096 | if (tpacpi_inputdev->users > 0) { |
1097 | switch (hkey >> 12) { | |
1098 | case 1: | |
1099 | /* 0x1000-0x1FFF: key presses */ | |
1100 | scancode = hkey & 0xfff; | |
1101 | if (scancode > 0 && scancode < 0x21) { | |
1102 | scancode--; | |
1103 | keycode = hotkey_keycode_map[scancode]; | |
1104 | tpacpi_input_send_key(scancode, keycode); | |
1105 | sendacpi = (keycode == KEY_RESERVED | |
1106 | || keycode == KEY_UNKNOWN); | |
1107 | } else { | |
1108 | printk(IBM_ERR | |
1109 | "hotkey 0x%04x out of range for keyboard map\n", | |
1110 | hkey); | |
1111 | } | |
1112 | break; | |
1113 | case 5: | |
1114 | /* 0x5000-0x5FFF: LID */ | |
1115 | /* we don't handle it through this path, just | |
1116 | * eat up known LID events */ | |
1117 | if (hkey != 0x5001 && hkey != 0x5002) { | |
1118 | printk(IBM_ERR | |
1119 | "unknown LID-related hotkey event: 0x%04x\n", | |
1120 | hkey); | |
1121 | } | |
1122 | break; | |
5c29d58f HMH |
1123 | case 7: |
1124 | /* 0x7000-0x7FFF: misc */ | |
1125 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
1126 | tpacpi_input_send_radiosw(); | |
1127 | sendacpi = 0; | |
1128 | break; | |
1129 | } | |
1130 | /* fallthrough to default */ | |
6a38abbf HMH |
1131 | default: |
1132 | /* case 2: dock-related */ | |
1133 | /* 0x2305 - T43 waking up due to bay lever eject while aslept */ | |
1134 | /* case 3: ultra-bay related. maybe bay in dock? */ | |
1135 | /* 0x3003 - T43 after wake up by bay lever eject (0x2305) */ | |
1136 | printk(IBM_NOTICE "unhandled hotkey event 0x%04x\n", hkey); | |
1137 | } | |
1138 | } | |
1139 | ||
1140 | if (sendacpi) | |
1141 | acpi_bus_generate_event(ibm->acpi->device, event, hkey); | |
ae92bd17 HMH |
1142 | } else { |
1143 | printk(IBM_ERR "unknown hotkey notification event %d\n", event); | |
8d376cd6 | 1144 | acpi_bus_generate_event(ibm->acpi->device, event, 0); |
56b6aeb0 HMH |
1145 | } |
1146 | } | |
1147 | ||
5c29d58f HMH |
1148 | static void hotkey_resume(void) |
1149 | { | |
1150 | tpacpi_input_send_radiosw(); | |
1151 | } | |
1152 | ||
40ca9fdf HMH |
1153 | /* |
1154 | * Call with hotkey_mutex held | |
1155 | */ | |
ae92bd17 | 1156 | static int hotkey_get(int *status, u32 *mask) |
1da177e4 LT |
1157 | { |
1158 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
b86c4722 | 1159 | return -EIO; |
78f81cc4 | 1160 | |
d8fd94d9 | 1161 | if (tp_features.hotkey_mask) |
78f81cc4 | 1162 | if (!acpi_evalf(hkey_handle, mask, "DHKN", "d")) |
b86c4722 | 1163 | return -EIO; |
78f81cc4 | 1164 | |
b86c4722 | 1165 | return 0; |
1da177e4 LT |
1166 | } |
1167 | ||
40ca9fdf HMH |
1168 | /* |
1169 | * Call with hotkey_mutex held | |
1170 | */ | |
ae92bd17 | 1171 | static int hotkey_set(int status, u32 mask) |
1da177e4 LT |
1172 | { |
1173 | int i; | |
1174 | ||
1175 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
b86c4722 | 1176 | return -EIO; |
1da177e4 | 1177 | |
d8fd94d9 | 1178 | if (tp_features.hotkey_mask) |
78f81cc4 BD |
1179 | for (i = 0; i < 32; i++) { |
1180 | int bit = ((1 << i) & mask) != 0; | |
1181 | if (!acpi_evalf(hkey_handle, | |
1182 | NULL, "MHKM", "vdd", i + 1, bit)) | |
b86c4722 | 1183 | return -EIO; |
78f81cc4 | 1184 | } |
1da177e4 | 1185 | |
b86c4722 | 1186 | return 0; |
1da177e4 LT |
1187 | } |
1188 | ||
a0416420 | 1189 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 1190 | static int hotkey_read(char *p) |
1da177e4 | 1191 | { |
ae92bd17 HMH |
1192 | int res, status; |
1193 | u32 mask; | |
1da177e4 LT |
1194 | int len = 0; |
1195 | ||
d8fd94d9 | 1196 | if (!tp_features.hotkey) { |
78f81cc4 BD |
1197 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1198 | return len; | |
1199 | } | |
1200 | ||
40ca9fdf HMH |
1201 | res = mutex_lock_interruptible(&hotkey_mutex); |
1202 | if (res < 0) | |
1203 | return res; | |
b86c4722 | 1204 | res = hotkey_get(&status, &mask); |
40ca9fdf | 1205 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
1206 | if (res) |
1207 | return res; | |
1da177e4 LT |
1208 | |
1209 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 1210 | if (tp_features.hotkey_mask) { |
ae92bd17 | 1211 | len += sprintf(p + len, "mask:\t\t0x%08x\n", mask); |
1da177e4 LT |
1212 | len += sprintf(p + len, |
1213 | "commands:\tenable, disable, reset, <mask>\n"); | |
1214 | } else { | |
1215 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
1216 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
1217 | } | |
1218 | ||
1219 | return len; | |
1220 | } | |
1221 | ||
78f81cc4 | 1222 | static int hotkey_write(char *buf) |
1da177e4 | 1223 | { |
ae92bd17 HMH |
1224 | int res, status; |
1225 | u32 mask; | |
1da177e4 LT |
1226 | char *cmd; |
1227 | int do_cmd = 0; | |
1228 | ||
d8fd94d9 | 1229 | if (!tp_features.hotkey) |
1da177e4 LT |
1230 | return -ENODEV; |
1231 | ||
40ca9fdf HMH |
1232 | res = mutex_lock_interruptible(&hotkey_mutex); |
1233 | if (res < 0) | |
1234 | return res; | |
1235 | ||
b86c4722 HMH |
1236 | res = hotkey_get(&status, &mask); |
1237 | if (res) | |
40ca9fdf | 1238 | goto errexit; |
78f81cc4 | 1239 | |
40ca9fdf | 1240 | res = 0; |
1da177e4 LT |
1241 | while ((cmd = next_cmd(&buf))) { |
1242 | if (strlencmp(cmd, "enable") == 0) { | |
1243 | status = 1; | |
1244 | } else if (strlencmp(cmd, "disable") == 0) { | |
1245 | status = 0; | |
1246 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
1247 | status = hotkey_orig_status; |
1248 | mask = hotkey_orig_mask; | |
1da177e4 LT |
1249 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
1250 | /* mask set */ | |
1251 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
1252 | /* mask set */ | |
40ca9fdf HMH |
1253 | } else { |
1254 | res = -EINVAL; | |
1255 | goto errexit; | |
1256 | } | |
1da177e4 LT |
1257 | do_cmd = 1; |
1258 | } | |
1259 | ||
40ca9fdf | 1260 | if (do_cmd) |
b86c4722 | 1261 | res = hotkey_set(status, mask); |
1da177e4 | 1262 | |
40ca9fdf HMH |
1263 | errexit: |
1264 | mutex_unlock(&hotkey_mutex); | |
1265 | return res; | |
78f81cc4 | 1266 | } |
1da177e4 | 1267 | |
8d376cd6 HMH |
1268 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1269 | .hid = IBM_HKEY_HID, | |
1270 | .notify = hotkey_notify, | |
1271 | .handle = &hkey_handle, | |
1272 | .type = ACPI_DEVICE_NOTIFY, | |
1273 | }; | |
1274 | ||
a5763f22 HMH |
1275 | static struct ibm_struct hotkey_driver_data = { |
1276 | .name = "hotkey", | |
a5763f22 HMH |
1277 | .read = hotkey_read, |
1278 | .write = hotkey_write, | |
1279 | .exit = hotkey_exit, | |
5c29d58f | 1280 | .resume = hotkey_resume, |
8d376cd6 | 1281 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
1282 | }; |
1283 | ||
56b6aeb0 HMH |
1284 | /************************************************************************* |
1285 | * Bluetooth subdriver | |
1286 | */ | |
1da177e4 | 1287 | |
d3a6ade4 HMH |
1288 | /* sysfs bluetooth enable ---------------------------------------------- */ |
1289 | static ssize_t bluetooth_enable_show(struct device *dev, | |
1290 | struct device_attribute *attr, | |
1291 | char *buf) | |
1292 | { | |
1293 | int status; | |
1294 | ||
1295 | status = bluetooth_get_radiosw(); | |
1296 | if (status < 0) | |
1297 | return status; | |
1298 | ||
1299 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
1300 | } | |
1301 | ||
1302 | static ssize_t bluetooth_enable_store(struct device *dev, | |
1303 | struct device_attribute *attr, | |
1304 | const char *buf, size_t count) | |
1305 | { | |
1306 | unsigned long t; | |
1307 | int res; | |
1308 | ||
1309 | if (parse_strtoul(buf, 1, &t)) | |
1310 | return -EINVAL; | |
1311 | ||
1312 | res = bluetooth_set_radiosw(t); | |
1313 | ||
1314 | return (res) ? res : count; | |
1315 | } | |
1316 | ||
1317 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 1318 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
1319 | bluetooth_enable_show, bluetooth_enable_store); |
1320 | ||
1321 | /* --------------------------------------------------------------------- */ | |
1322 | ||
1323 | static struct attribute *bluetooth_attributes[] = { | |
1324 | &dev_attr_bluetooth_enable.attr, | |
1325 | NULL | |
1326 | }; | |
1327 | ||
1328 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
1329 | .attrs = bluetooth_attributes, |
1330 | }; | |
1331 | ||
a5763f22 | 1332 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 1333 | { |
d3a6ade4 | 1334 | int res; |
d6fdd1e9 HMH |
1335 | int status = 0; |
1336 | ||
fe08bc4b HMH |
1337 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
1338 | ||
8d376cd6 | 1339 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1340 | |
78f81cc4 BD |
1341 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1342 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 1343 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
1344 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
1345 | ||
1346 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
1347 | str_supported(tp_features.bluetooth), | |
1348 | status); | |
1349 | ||
d3a6ade4 HMH |
1350 | if (tp_features.bluetooth) { |
1351 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
1352 | /* no bluetooth hardware present in system */ | |
1353 | tp_features.bluetooth = 0; | |
1354 | dbg_printk(TPACPI_DBG_INIT, | |
1355 | "bluetooth hardware not installed\n"); | |
1356 | } else { | |
1357 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
1358 | &bluetooth_attr_group); | |
1359 | if (res) | |
1360 | return res; | |
1361 | } | |
d6fdd1e9 | 1362 | } |
fe08bc4b | 1363 | |
d8fd94d9 | 1364 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
1365 | } |
1366 | ||
d3a6ade4 HMH |
1367 | static void bluetooth_exit(void) |
1368 | { | |
1369 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
1370 | &bluetooth_attr_group); | |
1371 | } | |
1372 | ||
d6fdd1e9 | 1373 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
1374 | { |
1375 | int status; | |
1376 | ||
d6fdd1e9 HMH |
1377 | if (!tp_features.bluetooth) |
1378 | return -ENODEV; | |
1da177e4 | 1379 | |
d6fdd1e9 HMH |
1380 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
1381 | return -EIO; | |
1382 | ||
1383 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
1384 | } | |
1385 | ||
1386 | static int bluetooth_set_radiosw(int radio_on) | |
1387 | { | |
1388 | int status; | |
1389 | ||
1390 | if (!tp_features.bluetooth) | |
1391 | return -ENODEV; | |
1392 | ||
1393 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
1394 | return -EIO; | |
1395 | if (radio_on) | |
1396 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
1397 | else | |
1398 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
1399 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
1400 | return -EIO; | |
1401 | ||
1402 | return 0; | |
1da177e4 LT |
1403 | } |
1404 | ||
d3a6ade4 | 1405 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 1406 | static int bluetooth_read(char *p) |
1da177e4 LT |
1407 | { |
1408 | int len = 0; | |
d6fdd1e9 | 1409 | int status = bluetooth_get_radiosw(); |
1da177e4 | 1410 | |
d8fd94d9 | 1411 | if (!tp_features.bluetooth) |
1da177e4 | 1412 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 1413 | else { |
d6fdd1e9 HMH |
1414 | len += sprintf(p + len, "status:\t\t%s\n", |
1415 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
1416 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1417 | } | |
1418 | ||
1419 | return len; | |
1420 | } | |
1421 | ||
78f81cc4 | 1422 | static int bluetooth_write(char *buf) |
1da177e4 | 1423 | { |
1da177e4 | 1424 | char *cmd; |
1da177e4 | 1425 | |
d8fd94d9 | 1426 | if (!tp_features.bluetooth) |
78f81cc4 | 1427 | return -ENODEV; |
1da177e4 LT |
1428 | |
1429 | while ((cmd = next_cmd(&buf))) { | |
1430 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1431 | bluetooth_set_radiosw(1); |
1da177e4 | 1432 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1433 | bluetooth_set_radiosw(0); |
1da177e4 LT |
1434 | } else |
1435 | return -EINVAL; | |
1da177e4 LT |
1436 | } |
1437 | ||
1da177e4 LT |
1438 | return 0; |
1439 | } | |
1440 | ||
a5763f22 HMH |
1441 | static struct ibm_struct bluetooth_driver_data = { |
1442 | .name = "bluetooth", | |
1443 | .read = bluetooth_read, | |
1444 | .write = bluetooth_write, | |
d3a6ade4 | 1445 | .exit = bluetooth_exit, |
a5763f22 HMH |
1446 | }; |
1447 | ||
56b6aeb0 HMH |
1448 | /************************************************************************* |
1449 | * Wan subdriver | |
1450 | */ | |
1451 | ||
d3a6ade4 HMH |
1452 | /* sysfs wan enable ---------------------------------------------------- */ |
1453 | static ssize_t wan_enable_show(struct device *dev, | |
1454 | struct device_attribute *attr, | |
1455 | char *buf) | |
1456 | { | |
1457 | int status; | |
1458 | ||
1459 | status = wan_get_radiosw(); | |
1460 | if (status < 0) | |
1461 | return status; | |
1462 | ||
1463 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
1464 | } | |
1465 | ||
1466 | static ssize_t wan_enable_store(struct device *dev, | |
1467 | struct device_attribute *attr, | |
1468 | const char *buf, size_t count) | |
1469 | { | |
1470 | unsigned long t; | |
1471 | int res; | |
1472 | ||
1473 | if (parse_strtoul(buf, 1, &t)) | |
1474 | return -EINVAL; | |
1475 | ||
1476 | res = wan_set_radiosw(t); | |
1477 | ||
1478 | return (res) ? res : count; | |
1479 | } | |
1480 | ||
1481 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 1482 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
1483 | wan_enable_show, wan_enable_store); |
1484 | ||
1485 | /* --------------------------------------------------------------------- */ | |
1486 | ||
1487 | static struct attribute *wan_attributes[] = { | |
1488 | &dev_attr_wan_enable.attr, | |
1489 | NULL | |
1490 | }; | |
1491 | ||
1492 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
1493 | .attrs = wan_attributes, |
1494 | }; | |
1495 | ||
a5763f22 | 1496 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 1497 | { |
d3a6ade4 | 1498 | int res; |
d6fdd1e9 HMH |
1499 | int status = 0; |
1500 | ||
fe08bc4b HMH |
1501 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
1502 | ||
8d376cd6 | 1503 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1504 | |
d8fd94d9 | 1505 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
1506 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
1507 | ||
1508 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
1509 | str_supported(tp_features.wan), | |
1510 | status); | |
1511 | ||
d3a6ade4 HMH |
1512 | if (tp_features.wan) { |
1513 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
1514 | /* no wan hardware present in system */ | |
1515 | tp_features.wan = 0; | |
1516 | dbg_printk(TPACPI_DBG_INIT, | |
1517 | "wan hardware not installed\n"); | |
1518 | } else { | |
1519 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
1520 | &wan_attr_group); | |
1521 | if (res) | |
1522 | return res; | |
1523 | } | |
d6fdd1e9 | 1524 | } |
fe08bc4b | 1525 | |
d8fd94d9 | 1526 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
1527 | } |
1528 | ||
d3a6ade4 HMH |
1529 | static void wan_exit(void) |
1530 | { | |
1531 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
1532 | &wan_attr_group); | |
1533 | } | |
1534 | ||
d6fdd1e9 | 1535 | static int wan_get_radiosw(void) |
42adb53c JF |
1536 | { |
1537 | int status; | |
1538 | ||
d6fdd1e9 HMH |
1539 | if (!tp_features.wan) |
1540 | return -ENODEV; | |
42adb53c | 1541 | |
d6fdd1e9 HMH |
1542 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
1543 | return -EIO; | |
1544 | ||
1545 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
1546 | } | |
1547 | ||
1548 | static int wan_set_radiosw(int radio_on) | |
1549 | { | |
1550 | int status; | |
1551 | ||
1552 | if (!tp_features.wan) | |
1553 | return -ENODEV; | |
1554 | ||
1555 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
1556 | return -EIO; | |
1557 | if (radio_on) | |
1558 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
1559 | else | |
1560 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
1561 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
1562 | return -EIO; | |
1563 | ||
1564 | return 0; | |
42adb53c JF |
1565 | } |
1566 | ||
d3a6ade4 | 1567 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
1568 | static int wan_read(char *p) |
1569 | { | |
1570 | int len = 0; | |
d6fdd1e9 | 1571 | int status = wan_get_radiosw(); |
42adb53c | 1572 | |
d8fd94d9 | 1573 | if (!tp_features.wan) |
42adb53c | 1574 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 1575 | else { |
d6fdd1e9 HMH |
1576 | len += sprintf(p + len, "status:\t\t%s\n", |
1577 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
1578 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1579 | } | |
1580 | ||
1581 | return len; | |
1582 | } | |
1583 | ||
1584 | static int wan_write(char *buf) | |
1585 | { | |
42adb53c | 1586 | char *cmd; |
42adb53c | 1587 | |
d8fd94d9 | 1588 | if (!tp_features.wan) |
42adb53c JF |
1589 | return -ENODEV; |
1590 | ||
1591 | while ((cmd = next_cmd(&buf))) { | |
1592 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1593 | wan_set_radiosw(1); |
42adb53c | 1594 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1595 | wan_set_radiosw(0); |
42adb53c JF |
1596 | } else |
1597 | return -EINVAL; | |
42adb53c JF |
1598 | } |
1599 | ||
42adb53c JF |
1600 | return 0; |
1601 | } | |
1602 | ||
a5763f22 HMH |
1603 | static struct ibm_struct wan_driver_data = { |
1604 | .name = "wan", | |
1605 | .read = wan_read, | |
1606 | .write = wan_write, | |
d3a6ade4 | 1607 | .exit = wan_exit, |
92641177 | 1608 | .flags.experimental = 1, |
a5763f22 HMH |
1609 | }; |
1610 | ||
56b6aeb0 HMH |
1611 | /************************************************************************* |
1612 | * Video subdriver | |
1613 | */ | |
1614 | ||
9a8e1738 HMH |
1615 | static enum video_access_mode video_supported; |
1616 | static int video_orig_autosw; | |
78f81cc4 | 1617 | |
56b6aeb0 HMH |
1618 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
1619 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
1620 | "\\_SB.PCI0.VID0", /* 770e */ | |
1621 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
1622 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
1623 | ); /* R30, R31 */ | |
1624 | ||
1625 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
1626 | ||
a5763f22 | 1627 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 1628 | { |
78f81cc4 BD |
1629 | int ivga; |
1630 | ||
fe08bc4b HMH |
1631 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
1632 | ||
8d376cd6 HMH |
1633 | IBM_ACPIHANDLE_INIT(vid); |
1634 | IBM_ACPIHANDLE_INIT(vid2); | |
5fba344c | 1635 | |
78f81cc4 BD |
1636 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
1637 | /* G41, assume IVGA doesn't change */ | |
1638 | vid_handle = vid2_handle; | |
1639 | ||
1640 | if (!vid_handle) | |
1641 | /* video switching not supported on R30, R31 */ | |
efa27145 | 1642 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
1643 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
1644 | /* 570 */ | |
efa27145 | 1645 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
1646 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
1647 | /* 600e/x, 770e, 770x */ | |
efa27145 | 1648 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
1649 | else |
1650 | /* all others */ | |
efa27145 | 1651 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 1652 | |
fe08bc4b HMH |
1653 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
1654 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
1655 | video_supported); | |
1656 | ||
5fba344c | 1657 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
1658 | } |
1659 | ||
56b6aeb0 HMH |
1660 | static void video_exit(void) |
1661 | { | |
83f34724 HMH |
1662 | dbg_printk(TPACPI_DBG_EXIT, |
1663 | "restoring original video autoswitch mode\n"); | |
1664 | if (video_autosw_set(video_orig_autosw)) | |
1665 | printk(IBM_ERR "error while trying to restore original " | |
1666 | "video autoswitch mode\n"); | |
56b6aeb0 HMH |
1667 | } |
1668 | ||
83f34724 | 1669 | static int video_outputsw_get(void) |
1da177e4 LT |
1670 | { |
1671 | int status = 0; | |
1672 | int i; | |
1673 | ||
83f34724 HMH |
1674 | switch (video_supported) { |
1675 | case TPACPI_VIDEO_570: | |
1676 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
1677 | TP_ACPI_VIDEO_570_PHSCMD)) | |
1678 | return -EIO; | |
1679 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
1680 | break; | |
1681 | case TPACPI_VIDEO_770: | |
1682 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1683 | return -EIO; | |
1684 | if (i) | |
1685 | status |= TP_ACPI_VIDEO_S_LCD; | |
1686 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1687 | return -EIO; | |
1688 | if (i) | |
1689 | status |= TP_ACPI_VIDEO_S_CRT; | |
1690 | break; | |
1691 | case TPACPI_VIDEO_NEW: | |
1692 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
1693 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1694 | return -EIO; | |
1695 | if (i) | |
1696 | status |= TP_ACPI_VIDEO_S_CRT; | |
1697 | ||
1698 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
1699 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1700 | return -EIO; | |
1701 | if (i) | |
1702 | status |= TP_ACPI_VIDEO_S_LCD; | |
1703 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
1704 | return -EIO; | |
1705 | if (i) | |
1706 | status |= TP_ACPI_VIDEO_S_DVI; | |
1707 | break; | |
1708 | default: | |
1709 | return -ENOSYS; | |
78f81cc4 BD |
1710 | } |
1711 | ||
1712 | return status; | |
1713 | } | |
1da177e4 | 1714 | |
83f34724 | 1715 | static int video_outputsw_set(int status) |
78f81cc4 | 1716 | { |
83f34724 HMH |
1717 | int autosw; |
1718 | int res = 0; | |
1719 | ||
1720 | switch (video_supported) { | |
1721 | case TPACPI_VIDEO_570: | |
1722 | res = acpi_evalf(NULL, NULL, | |
1723 | "\\_SB.PHS2", "vdd", | |
1724 | TP_ACPI_VIDEO_570_PHS2CMD, | |
1725 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
1726 | break; | |
1727 | case TPACPI_VIDEO_770: | |
1728 | autosw = video_autosw_get(); | |
1729 | if (autosw < 0) | |
1730 | return autosw; | |
1da177e4 | 1731 | |
83f34724 HMH |
1732 | res = video_autosw_set(1); |
1733 | if (res) | |
1734 | return res; | |
1735 | res = acpi_evalf(vid_handle, NULL, | |
1736 | "ASWT", "vdd", status * 0x100, 0); | |
1737 | if (!autosw && video_autosw_set(autosw)) { | |
1738 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1739 | return -EIO; | |
1740 | } | |
1741 | break; | |
1742 | case TPACPI_VIDEO_NEW: | |
1743 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
1744 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
1745 | break; | |
1746 | default: | |
1747 | return -ENOSYS; | |
1748 | } | |
1da177e4 | 1749 | |
83f34724 | 1750 | return (res)? 0 : -EIO; |
1da177e4 LT |
1751 | } |
1752 | ||
83f34724 | 1753 | static int video_autosw_get(void) |
78f81cc4 | 1754 | { |
83f34724 | 1755 | int autosw = 0; |
78f81cc4 | 1756 | |
83f34724 HMH |
1757 | switch (video_supported) { |
1758 | case TPACPI_VIDEO_570: | |
1759 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
1760 | return -EIO; | |
1761 | break; | |
1762 | case TPACPI_VIDEO_770: | |
1763 | case TPACPI_VIDEO_NEW: | |
1764 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
1765 | return -EIO; | |
1766 | break; | |
1767 | default: | |
1768 | return -ENOSYS; | |
1769 | } | |
78f81cc4 | 1770 | |
83f34724 | 1771 | return autosw & 1; |
78f81cc4 BD |
1772 | } |
1773 | ||
83f34724 | 1774 | static int video_autosw_set(int enable) |
78f81cc4 | 1775 | { |
83f34724 HMH |
1776 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
1777 | return -EIO; | |
1778 | return 0; | |
78f81cc4 BD |
1779 | } |
1780 | ||
83f34724 | 1781 | static int video_outputsw_cycle(void) |
78f81cc4 | 1782 | { |
83f34724 HMH |
1783 | int autosw = video_autosw_get(); |
1784 | int res; | |
78f81cc4 | 1785 | |
83f34724 HMH |
1786 | if (autosw < 0) |
1787 | return autosw; | |
78f81cc4 | 1788 | |
83f34724 HMH |
1789 | switch (video_supported) { |
1790 | case TPACPI_VIDEO_570: | |
1791 | res = video_autosw_set(1); | |
1792 | if (res) | |
1793 | return res; | |
1794 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
1795 | break; | |
1796 | case TPACPI_VIDEO_770: | |
1797 | case TPACPI_VIDEO_NEW: | |
1798 | res = video_autosw_set(1); | |
1799 | if (res) | |
1800 | return res; | |
1801 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
1802 | break; | |
1803 | default: | |
1804 | return -ENOSYS; | |
1805 | } | |
1806 | if (!autosw && video_autosw_set(autosw)) { | |
1807 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1808 | return -EIO; | |
78f81cc4 BD |
1809 | } |
1810 | ||
83f34724 HMH |
1811 | return (res)? 0 : -EIO; |
1812 | } | |
1813 | ||
1814 | static int video_expand_toggle(void) | |
1815 | { | |
1816 | switch (video_supported) { | |
1817 | case TPACPI_VIDEO_570: | |
1818 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
1819 | 0 : -EIO; | |
1820 | case TPACPI_VIDEO_770: | |
1821 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
1822 | 0 : -EIO; | |
1823 | case TPACPI_VIDEO_NEW: | |
1824 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
1825 | 0 : -EIO; | |
1826 | default: | |
1827 | return -ENOSYS; | |
1828 | } | |
1829 | /* not reached */ | |
78f81cc4 BD |
1830 | } |
1831 | ||
56b6aeb0 HMH |
1832 | static int video_read(char *p) |
1833 | { | |
83f34724 | 1834 | int status, autosw; |
56b6aeb0 HMH |
1835 | int len = 0; |
1836 | ||
83f34724 | 1837 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
1838 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1839 | return len; | |
1840 | } | |
1841 | ||
83f34724 HMH |
1842 | status = video_outputsw_get(); |
1843 | if (status < 0) | |
1844 | return status; | |
1845 | ||
1846 | autosw = video_autosw_get(); | |
1847 | if (autosw < 0) | |
1848 | return autosw; | |
1849 | ||
56b6aeb0 HMH |
1850 | len += sprintf(p + len, "status:\t\tsupported\n"); |
1851 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
1852 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 1853 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1854 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
1855 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
1856 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
1857 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 1858 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1859 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
1860 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
1861 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
1862 | ||
1863 | return len; | |
1864 | } | |
1865 | ||
78f81cc4 | 1866 | static int video_write(char *buf) |
1da177e4 LT |
1867 | { |
1868 | char *cmd; | |
1869 | int enable, disable, status; | |
83f34724 | 1870 | int res; |
1da177e4 | 1871 | |
83f34724 | 1872 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
1873 | return -ENODEV; |
1874 | ||
83f34724 HMH |
1875 | enable = 0; |
1876 | disable = 0; | |
1da177e4 LT |
1877 | |
1878 | while ((cmd = next_cmd(&buf))) { | |
1879 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 1880 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 1881 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 1882 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 1883 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 1884 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 1885 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 1886 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 1887 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1888 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 1889 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 1890 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1891 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 1892 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 1893 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
1894 | res = video_autosw_set(1); |
1895 | if (res) | |
1896 | return res; | |
1da177e4 | 1897 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
1898 | res = video_autosw_set(0); |
1899 | if (res) | |
1900 | return res; | |
1da177e4 | 1901 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
1902 | res = video_outputsw_cycle(); |
1903 | if (res) | |
1904 | return res; | |
1da177e4 | 1905 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
1906 | res = video_expand_toggle(); |
1907 | if (res) | |
1908 | return res; | |
1da177e4 LT |
1909 | } else |
1910 | return -EINVAL; | |
1911 | } | |
1912 | ||
1913 | if (enable || disable) { | |
83f34724 HMH |
1914 | status = video_outputsw_get(); |
1915 | if (status < 0) | |
1916 | return status; | |
1917 | res = video_outputsw_set((status & ~disable) | enable); | |
1918 | if (res) | |
1919 | return res; | |
1da177e4 LT |
1920 | } |
1921 | ||
1922 | return 0; | |
1923 | } | |
1924 | ||
a5763f22 HMH |
1925 | static struct ibm_struct video_driver_data = { |
1926 | .name = "video", | |
1927 | .read = video_read, | |
1928 | .write = video_write, | |
1929 | .exit = video_exit, | |
1930 | }; | |
1931 | ||
56b6aeb0 HMH |
1932 | /************************************************************************* |
1933 | * Light (thinklight) subdriver | |
1934 | */ | |
1da177e4 | 1935 | |
56b6aeb0 HMH |
1936 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
1937 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
1938 | ||
a5763f22 | 1939 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 1940 | { |
fe08bc4b HMH |
1941 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
1942 | ||
8d376cd6 HMH |
1943 | IBM_ACPIHANDLE_INIT(ledb); |
1944 | IBM_ACPIHANDLE_INIT(lght); | |
1945 | IBM_ACPIHANDLE_INIT(cmos); | |
5fba344c | 1946 | |
78f81cc4 | 1947 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 1948 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 1949 | |
d8fd94d9 | 1950 | if (tp_features.light) |
78f81cc4 BD |
1951 | /* light status not supported on |
1952 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
1953 | tp_features.light_status = |
1954 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 1955 | |
fe08bc4b | 1956 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 1957 | str_supported(tp_features.light)); |
fe08bc4b | 1958 | |
d8fd94d9 | 1959 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
1960 | } |
1961 | ||
78f81cc4 | 1962 | static int light_read(char *p) |
1da177e4 LT |
1963 | { |
1964 | int len = 0; | |
1965 | int status = 0; | |
1966 | ||
d8fd94d9 | 1967 | if (!tp_features.light) { |
78f81cc4 | 1968 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 1969 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
1970 | len += sprintf(p + len, "status:\t\tunknown\n"); |
1971 | len += sprintf(p + len, "commands:\ton, off\n"); | |
1972 | } else { | |
1da177e4 LT |
1973 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
1974 | return -EIO; | |
1975 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
1976 | len += sprintf(p + len, "commands:\ton, off\n"); |
1977 | } | |
1da177e4 LT |
1978 | |
1979 | return len; | |
1980 | } | |
1981 | ||
78f81cc4 | 1982 | static int light_write(char *buf) |
1da177e4 LT |
1983 | { |
1984 | int cmos_cmd, lght_cmd; | |
1985 | char *cmd; | |
1986 | int success; | |
78f81cc4 | 1987 | |
d8fd94d9 | 1988 | if (!tp_features.light) |
78f81cc4 BD |
1989 | return -ENODEV; |
1990 | ||
1da177e4 LT |
1991 | while ((cmd = next_cmd(&buf))) { |
1992 | if (strlencmp(cmd, "on") == 0) { | |
1993 | cmos_cmd = 0x0c; | |
1994 | lght_cmd = 1; | |
1995 | } else if (strlencmp(cmd, "off") == 0) { | |
1996 | cmos_cmd = 0x0d; | |
1997 | lght_cmd = 0; | |
1998 | } else | |
1999 | return -EINVAL; | |
78f81cc4 | 2000 | |
1da177e4 | 2001 | success = cmos_handle ? |
78f81cc4 BD |
2002 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
2003 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
2004 | if (!success) |
2005 | return -EIO; | |
2006 | } | |
2007 | ||
2008 | return 0; | |
2009 | } | |
2010 | ||
a5763f22 HMH |
2011 | static struct ibm_struct light_driver_data = { |
2012 | .name = "light", | |
2013 | .read = light_read, | |
2014 | .write = light_write, | |
2015 | }; | |
2016 | ||
56b6aeb0 HMH |
2017 | /************************************************************************* |
2018 | * Dock subdriver | |
2019 | */ | |
1da177e4 | 2020 | |
85998248 | 2021 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 HMH |
2022 | |
2023 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ | |
2024 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
2025 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
2026 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
2027 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
2028 | ||
5fba344c HMH |
2029 | /* don't list other alternatives as we install a notify handler on the 570 */ |
2030 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
2031 | ||
d94a7f16 HMH |
2032 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
2033 | { | |
2034 | .notify = dock_notify, | |
2035 | .handle = &dock_handle, | |
2036 | .type = ACPI_SYSTEM_NOTIFY, | |
2037 | }, | |
2038 | { | |
996fba08 HMH |
2039 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
2040 | * We just use it to get notifications of dock hotplug | |
2041 | * in very old thinkpads */ | |
2042 | .hid = PCI_ROOT_HID_STRING, | |
d94a7f16 HMH |
2043 | .notify = dock_notify, |
2044 | .handle = &pci_handle, | |
2045 | .type = ACPI_SYSTEM_NOTIFY, | |
2046 | }, | |
2047 | }; | |
2048 | ||
2049 | static struct ibm_struct dock_driver_data[2] = { | |
2050 | { | |
2051 | .name = "dock", | |
2052 | .read = dock_read, | |
2053 | .write = dock_write, | |
2054 | .acpi = &ibm_dock_acpidriver[0], | |
2055 | }, | |
2056 | { | |
2057 | .name = "dock", | |
2058 | .acpi = &ibm_dock_acpidriver[1], | |
2059 | }, | |
2060 | }; | |
2061 | ||
1da177e4 LT |
2062 | #define dock_docked() (_sta(dock_handle) & 1) |
2063 | ||
a5763f22 | 2064 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 2065 | { |
fe08bc4b HMH |
2066 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
2067 | ||
8d376cd6 | 2068 | IBM_ACPIHANDLE_INIT(dock); |
5fba344c | 2069 | |
fe08bc4b HMH |
2070 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
2071 | str_supported(dock_handle != NULL)); | |
2072 | ||
5fba344c HMH |
2073 | return (dock_handle)? 0 : 1; |
2074 | } | |
2075 | ||
d94a7f16 HMH |
2076 | static int __init dock_init2(struct ibm_init_struct *iibm) |
2077 | { | |
2078 | int dock2_needed; | |
2079 | ||
2080 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
2081 | ||
2082 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
2083 | dock_driver_data[0].flags.acpi_notify_installed) { | |
2084 | IBM_ACPIHANDLE_INIT(pci); | |
2085 | dock2_needed = (pci_handle != NULL); | |
2086 | vdbg_printk(TPACPI_DBG_INIT, | |
2087 | "dock PCI handler for the TP 570 is %s\n", | |
2088 | str_supported(dock2_needed)); | |
2089 | } else { | |
2090 | vdbg_printk(TPACPI_DBG_INIT, | |
2091 | "dock subdriver part 2 not required\n"); | |
2092 | dock2_needed = 0; | |
2093 | } | |
2094 | ||
2095 | return (dock2_needed)? 0 : 1; | |
2096 | } | |
2097 | ||
56b6aeb0 HMH |
2098 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
2099 | { | |
2100 | int docked = dock_docked(); | |
996fba08 | 2101 | int pci = ibm->acpi->hid && strstr(ibm->acpi->hid, PCI_ROOT_HID_STRING); |
56b6aeb0 HMH |
2102 | |
2103 | if (event == 1 && !pci) /* 570 */ | |
8d376cd6 | 2104 | acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */ |
56b6aeb0 | 2105 | else if (event == 1 && pci) /* 570 */ |
8d376cd6 | 2106 | acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */ |
56b6aeb0 | 2107 | else if (event == 3 && docked) |
8d376cd6 | 2108 | acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */ |
56b6aeb0 | 2109 | else if (event == 3 && !docked) |
8d376cd6 | 2110 | acpi_bus_generate_event(ibm->acpi->device, event, 2); /* undock */ |
56b6aeb0 | 2111 | else if (event == 0 && docked) |
8d376cd6 | 2112 | acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */ |
56b6aeb0 HMH |
2113 | else { |
2114 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
2115 | event, _sta(dock_handle)); | |
8d376cd6 | 2116 | acpi_bus_generate_event(ibm->acpi->device, event, 0); /* unknown */ |
56b6aeb0 HMH |
2117 | } |
2118 | } | |
2119 | ||
78f81cc4 | 2120 | static int dock_read(char *p) |
1da177e4 LT |
2121 | { |
2122 | int len = 0; | |
2123 | int docked = dock_docked(); | |
2124 | ||
2125 | if (!dock_handle) | |
2126 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2127 | else if (!docked) | |
2128 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
2129 | else { | |
2130 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
2131 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
2132 | } | |
2133 | ||
2134 | return len; | |
2135 | } | |
2136 | ||
78f81cc4 | 2137 | static int dock_write(char *buf) |
1da177e4 LT |
2138 | { |
2139 | char *cmd; | |
2140 | ||
2141 | if (!dock_docked()) | |
78f81cc4 | 2142 | return -ENODEV; |
1da177e4 LT |
2143 | |
2144 | while ((cmd = next_cmd(&buf))) { | |
2145 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
2146 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
2147 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
2148 | return -EIO; |
2149 | } else if (strlencmp(cmd, "dock") == 0) { | |
2150 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
2151 | return -EIO; | |
2152 | } else | |
2153 | return -EINVAL; | |
1da177e4 | 2154 | } |
56b6aeb0 HMH |
2155 | |
2156 | return 0; | |
1da177e4 | 2157 | } |
56b6aeb0 | 2158 | |
85998248 | 2159 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
2160 | |
2161 | /************************************************************************* | |
2162 | * Bay subdriver | |
2163 | */ | |
1da177e4 | 2164 | |
85998248 | 2165 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
56b6aeb0 HMH |
2166 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
2167 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
2168 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
2169 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
2170 | ); /* A21e, R30, R31 */ | |
2171 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
2172 | "_EJ0", /* all others */ | |
2173 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
2174 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
2175 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
2176 | ); /* all others */ | |
2177 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
2178 | "_EJ0", /* 770x */ | |
2179 | ); /* all others */ | |
2180 | ||
a5763f22 | 2181 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 2182 | { |
fe08bc4b HMH |
2183 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
2184 | ||
8d376cd6 | 2185 | IBM_ACPIHANDLE_INIT(bay); |
5fba344c | 2186 | if (bay_handle) |
8d376cd6 HMH |
2187 | IBM_ACPIHANDLE_INIT(bay_ej); |
2188 | IBM_ACPIHANDLE_INIT(bay2); | |
5fba344c | 2189 | if (bay2_handle) |
8d376cd6 | 2190 | IBM_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 2191 | |
d8fd94d9 HMH |
2192 | tp_features.bay_status = bay_handle && |
2193 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
2194 | tp_features.bay_status2 = bay2_handle && | |
2195 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 2196 | |
d8fd94d9 HMH |
2197 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
2198 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
2199 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
2200 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 2201 | |
fe08bc4b HMH |
2202 | vdbg_printk(TPACPI_DBG_INIT, |
2203 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
2204 | str_supported(tp_features.bay_status), |
2205 | str_supported(tp_features.bay_eject), | |
2206 | str_supported(tp_features.bay_status2), | |
2207 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 2208 | |
d8fd94d9 HMH |
2209 | return (tp_features.bay_status || tp_features.bay_eject || |
2210 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
2211 | } |
2212 | ||
56b6aeb0 HMH |
2213 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
2214 | { | |
8d376cd6 | 2215 | acpi_bus_generate_event(ibm->acpi->device, event, 0); |
56b6aeb0 HMH |
2216 | } |
2217 | ||
78f81cc4 BD |
2218 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
2219 | ||
2220 | static int bay_read(char *p) | |
1da177e4 LT |
2221 | { |
2222 | int len = 0; | |
78f81cc4 BD |
2223 | int occupied = bay_occupied(bay); |
2224 | int occupied2 = bay_occupied(bay2); | |
2225 | int eject, eject2; | |
2226 | ||
d8fd94d9 HMH |
2227 | len += sprintf(p + len, "status:\t\t%s\n", |
2228 | tp_features.bay_status ? | |
2229 | (occupied ? "occupied" : "unoccupied") : | |
2230 | "not supported"); | |
2231 | if (tp_features.bay_status2) | |
78f81cc4 BD |
2232 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
2233 | "occupied" : "unoccupied"); | |
2234 | ||
d8fd94d9 HMH |
2235 | eject = tp_features.bay_eject && occupied; |
2236 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
2237 | |
2238 | if (eject && eject2) | |
2239 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
2240 | else if (eject) | |
1da177e4 | 2241 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
2242 | else if (eject2) |
2243 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
2244 | |
2245 | return len; | |
2246 | } | |
2247 | ||
78f81cc4 | 2248 | static int bay_write(char *buf) |
1da177e4 LT |
2249 | { |
2250 | char *cmd; | |
2251 | ||
d8fd94d9 | 2252 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
2253 | return -ENODEV; |
2254 | ||
1da177e4 | 2255 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 2256 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
2257 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
2258 | return -EIO; | |
d8fd94d9 | 2259 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
2260 | strlencmp(cmd, "eject2") == 0) { |
2261 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
2262 | return -EIO; |
2263 | } else | |
2264 | return -EINVAL; | |
2265 | } | |
2266 | ||
2267 | return 0; | |
78f81cc4 | 2268 | } |
a5763f22 | 2269 | |
8d376cd6 HMH |
2270 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
2271 | .notify = bay_notify, | |
2272 | .handle = &bay_handle, | |
2273 | .type = ACPI_SYSTEM_NOTIFY, | |
2274 | }; | |
2275 | ||
a5763f22 HMH |
2276 | static struct ibm_struct bay_driver_data = { |
2277 | .name = "bay", | |
2278 | .read = bay_read, | |
2279 | .write = bay_write, | |
8d376cd6 | 2280 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
2281 | }; |
2282 | ||
85998248 | 2283 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 2284 | |
56b6aeb0 HMH |
2285 | /************************************************************************* |
2286 | * CMOS subdriver | |
2287 | */ | |
2288 | ||
b616004c HMH |
2289 | /* sysfs cmos_command -------------------------------------------------- */ |
2290 | static ssize_t cmos_command_store(struct device *dev, | |
2291 | struct device_attribute *attr, | |
2292 | const char *buf, size_t count) | |
2293 | { | |
2294 | unsigned long cmos_cmd; | |
2295 | int res; | |
2296 | ||
2297 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
2298 | return -EINVAL; | |
2299 | ||
2300 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
2301 | return (res)? res : count; | |
2302 | } | |
2303 | ||
2304 | static struct device_attribute dev_attr_cmos_command = | |
2305 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
2306 | ||
2307 | /* --------------------------------------------------------------------- */ | |
2308 | ||
a5763f22 | 2309 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 2310 | { |
b616004c HMH |
2311 | int res; |
2312 | ||
fe08bc4b HMH |
2313 | vdbg_printk(TPACPI_DBG_INIT, |
2314 | "initializing cmos commands subdriver\n"); | |
2315 | ||
8d376cd6 | 2316 | IBM_ACPIHANDLE_INIT(cmos); |
5fba344c | 2317 | |
fe08bc4b HMH |
2318 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
2319 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
2320 | |
2321 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
2322 | if (res) | |
2323 | return res; | |
2324 | ||
5fba344c HMH |
2325 | return (cmos_handle)? 0 : 1; |
2326 | } | |
2327 | ||
b616004c HMH |
2328 | static void cmos_exit(void) |
2329 | { | |
2330 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
2331 | } | |
2332 | ||
78f81cc4 | 2333 | static int cmos_read(char *p) |
1da177e4 LT |
2334 | { |
2335 | int len = 0; | |
2336 | ||
78f81cc4 BD |
2337 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2338 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
2339 | if (!cmos_handle) |
2340 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2341 | else { | |
2342 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 2343 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
2344 | } |
2345 | ||
2346 | return len; | |
2347 | } | |
2348 | ||
78f81cc4 | 2349 | static int cmos_write(char *buf) |
1da177e4 LT |
2350 | { |
2351 | char *cmd; | |
c9bea99c | 2352 | int cmos_cmd, res; |
1da177e4 LT |
2353 | |
2354 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
2355 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
2356 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
2357 | /* cmos_cmd set */ |
2358 | } else | |
2359 | return -EINVAL; | |
2360 | ||
c9bea99c HMH |
2361 | res = issue_thinkpad_cmos_command(cmos_cmd); |
2362 | if (res) | |
2363 | return res; | |
1da177e4 LT |
2364 | } |
2365 | ||
2366 | return 0; | |
78f81cc4 BD |
2367 | } |
2368 | ||
a5763f22 HMH |
2369 | static struct ibm_struct cmos_driver_data = { |
2370 | .name = "cmos", | |
2371 | .read = cmos_read, | |
2372 | .write = cmos_write, | |
b616004c | 2373 | .exit = cmos_exit, |
a5763f22 | 2374 | }; |
56b6aeb0 HMH |
2375 | |
2376 | /************************************************************************* | |
2377 | * LED subdriver | |
2378 | */ | |
2379 | ||
9a8e1738 | 2380 | static enum led_access_mode led_supported; |
78f81cc4 | 2381 | |
56b6aeb0 HMH |
2382 | IBM_HANDLE(led, ec, "SLED", /* 570 */ |
2383 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
2384 | "LED", /* all others */ | |
2385 | ); /* R30, R31 */ | |
2386 | ||
a5763f22 | 2387 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2388 | { |
fe08bc4b HMH |
2389 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
2390 | ||
8d376cd6 | 2391 | IBM_ACPIHANDLE_INIT(led); |
5fba344c | 2392 | |
78f81cc4 BD |
2393 | if (!led_handle) |
2394 | /* led not supported on R30, R31 */ | |
efa27145 | 2395 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
2396 | else if (strlencmp(led_path, "SLED") == 0) |
2397 | /* 570 */ | |
efa27145 | 2398 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
2399 | else if (strlencmp(led_path, "SYSL") == 0) |
2400 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 2401 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
2402 | else |
2403 | /* all others */ | |
efa27145 | 2404 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 2405 | |
fe08bc4b HMH |
2406 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
2407 | str_supported(led_supported), led_supported); | |
2408 | ||
5fba344c | 2409 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
2410 | } |
2411 | ||
2412 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
2413 | ||
2414 | static int led_read(char *p) | |
1da177e4 LT |
2415 | { |
2416 | int len = 0; | |
2417 | ||
78f81cc4 BD |
2418 | if (!led_supported) { |
2419 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2420 | return len; | |
2421 | } | |
2422 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2423 | ||
efa27145 | 2424 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2425 | /* 570 */ |
2426 | int i, status; | |
2427 | for (i = 0; i < 8; i++) { | |
2428 | if (!acpi_evalf(ec_handle, | |
2429 | &status, "GLED", "dd", 1 << i)) | |
2430 | return -EIO; | |
2431 | len += sprintf(p + len, "%d:\t\t%s\n", | |
2432 | i, led_status(status)); | |
2433 | } | |
2434 | } | |
2435 | ||
1da177e4 | 2436 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 2437 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
2438 | |
2439 | return len; | |
2440 | } | |
2441 | ||
78f81cc4 BD |
2442 | /* off, on, blink */ |
2443 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
2444 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
2445 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
2446 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
2447 | ||
78f81cc4 | 2448 | static int led_write(char *buf) |
1da177e4 LT |
2449 | { |
2450 | char *cmd; | |
78f81cc4 BD |
2451 | int led, ind, ret; |
2452 | ||
2453 | if (!led_supported) | |
2454 | return -ENODEV; | |
1da177e4 LT |
2455 | |
2456 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 2457 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
2458 | return -EINVAL; |
2459 | ||
78f81cc4 BD |
2460 | if (strstr(cmd, "off")) { |
2461 | ind = 0; | |
1da177e4 | 2462 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
2463 | ind = 1; |
2464 | } else if (strstr(cmd, "blink")) { | |
2465 | ind = 2; | |
1da177e4 LT |
2466 | } else |
2467 | return -EINVAL; | |
78f81cc4 | 2468 | |
efa27145 | 2469 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2470 | /* 570 */ |
2471 | led = 1 << led; | |
1da177e4 | 2472 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 2473 | led, led_sled_arg1[ind])) |
1da177e4 | 2474 | return -EIO; |
efa27145 | 2475 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
2476 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
2477 | led = 1 << led; | |
efa27145 | 2478 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
2479 | if (ret >= 0) |
2480 | ret = | |
efa27145 | 2481 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 2482 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
2483 | if (ret >= 0) |
2484 | ret = | |
efa27145 | 2485 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 2486 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
2487 | if (ret < 0) |
2488 | return ret; | |
2489 | } else { | |
2490 | /* all others */ | |
2491 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
2492 | led, led_led_arg1[ind])) | |
1da177e4 | 2493 | return -EIO; |
78f81cc4 BD |
2494 | } |
2495 | } | |
2496 | ||
2497 | return 0; | |
2498 | } | |
2499 | ||
a5763f22 HMH |
2500 | static struct ibm_struct led_driver_data = { |
2501 | .name = "led", | |
2502 | .read = led_read, | |
2503 | .write = led_write, | |
2504 | }; | |
2505 | ||
56b6aeb0 HMH |
2506 | /************************************************************************* |
2507 | * Beep subdriver | |
2508 | */ | |
2509 | ||
2510 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
2511 | ||
a5763f22 | 2512 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 2513 | { |
fe08bc4b HMH |
2514 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
2515 | ||
8d376cd6 | 2516 | IBM_ACPIHANDLE_INIT(beep); |
5fba344c | 2517 | |
fe08bc4b HMH |
2518 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
2519 | str_supported(beep_handle != NULL)); | |
2520 | ||
5fba344c HMH |
2521 | return (beep_handle)? 0 : 1; |
2522 | } | |
2523 | ||
78f81cc4 BD |
2524 | static int beep_read(char *p) |
2525 | { | |
2526 | int len = 0; | |
2527 | ||
2528 | if (!beep_handle) | |
2529 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2530 | else { | |
2531 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2532 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
2533 | } | |
2534 | ||
2535 | return len; | |
2536 | } | |
2537 | ||
2538 | static int beep_write(char *buf) | |
2539 | { | |
2540 | char *cmd; | |
2541 | int beep_cmd; | |
2542 | ||
2543 | if (!beep_handle) | |
2544 | return -ENODEV; | |
2545 | ||
2546 | while ((cmd = next_cmd(&buf))) { | |
2547 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
2548 | beep_cmd >= 0 && beep_cmd <= 17) { | |
2549 | /* beep_cmd set */ | |
2550 | } else | |
2551 | return -EINVAL; | |
2552 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
2553 | return -EIO; | |
2554 | } | |
2555 | ||
2556 | return 0; | |
2557 | } | |
2558 | ||
a5763f22 HMH |
2559 | static struct ibm_struct beep_driver_data = { |
2560 | .name = "beep", | |
2561 | .read = beep_read, | |
2562 | .write = beep_write, | |
2563 | }; | |
2564 | ||
56b6aeb0 HMH |
2565 | /************************************************************************* |
2566 | * Thermal subdriver | |
2567 | */ | |
78f81cc4 | 2568 | |
a26f878a | 2569 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 2570 | |
2c37aa4e HMH |
2571 | /* sysfs temp##_input -------------------------------------------------- */ |
2572 | ||
2573 | static ssize_t thermal_temp_input_show(struct device *dev, | |
2574 | struct device_attribute *attr, | |
2575 | char *buf) | |
2576 | { | |
2577 | struct sensor_device_attribute *sensor_attr = | |
2578 | to_sensor_dev_attr(attr); | |
2579 | int idx = sensor_attr->index; | |
2580 | s32 value; | |
2581 | int res; | |
2582 | ||
2583 | res = thermal_get_sensor(idx, &value); | |
2584 | if (res) | |
2585 | return res; | |
2586 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
2587 | return -ENXIO; | |
2588 | ||
2589 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
2590 | } | |
2591 | ||
2592 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
2593 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB) | |
2594 | ||
2595 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
2596 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
2597 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
2598 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
2599 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
2600 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
2601 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
2602 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
2603 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
2604 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
2605 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
2606 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
2607 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
2608 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
2609 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
2610 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
2611 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
2612 | }; | |
2613 | ||
2614 | #define THERMAL_ATTRS(X) \ | |
2615 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
2616 | ||
2617 | static struct attribute *thermal_temp_input_attr[] = { | |
2618 | THERMAL_ATTRS(8), | |
2619 | THERMAL_ATTRS(9), | |
2620 | THERMAL_ATTRS(10), | |
2621 | THERMAL_ATTRS(11), | |
2622 | THERMAL_ATTRS(12), | |
2623 | THERMAL_ATTRS(13), | |
2624 | THERMAL_ATTRS(14), | |
2625 | THERMAL_ATTRS(15), | |
2626 | THERMAL_ATTRS(0), | |
2627 | THERMAL_ATTRS(1), | |
2628 | THERMAL_ATTRS(2), | |
2629 | THERMAL_ATTRS(3), | |
2630 | THERMAL_ATTRS(4), | |
2631 | THERMAL_ATTRS(5), | |
2632 | THERMAL_ATTRS(6), | |
2633 | THERMAL_ATTRS(7), | |
2634 | NULL | |
2635 | }; | |
2636 | ||
2637 | static const struct attribute_group thermal_temp_input16_group = { | |
2638 | .attrs = thermal_temp_input_attr | |
2639 | }; | |
2640 | ||
2641 | static const struct attribute_group thermal_temp_input8_group = { | |
2642 | .attrs = &thermal_temp_input_attr[8] | |
2643 | }; | |
2644 | ||
2645 | #undef THERMAL_SENSOR_ATTR_TEMP | |
2646 | #undef THERMAL_ATTRS | |
2647 | ||
2648 | /* --------------------------------------------------------------------- */ | |
2649 | ||
a5763f22 | 2650 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2651 | { |
60eb0b35 HMH |
2652 | u8 t, ta1, ta2; |
2653 | int i; | |
5fba344c | 2654 | int acpi_tmp7; |
2c37aa4e | 2655 | int res; |
5fba344c | 2656 | |
fe08bc4b HMH |
2657 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
2658 | ||
5fba344c | 2659 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 2660 | |
d5a2f2f1 | 2661 | if (thinkpad_id.ec_model && experimental) { |
60eb0b35 HMH |
2662 | /* |
2663 | * Direct EC access mode: sensors at registers | |
2664 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
2665 | * non-implemented, thermal sensors return 0x80 when | |
2666 | * not available | |
2667 | */ | |
78f81cc4 | 2668 | |
60eb0b35 HMH |
2669 | ta1 = ta2 = 0; |
2670 | for (i = 0; i < 8; i++) { | |
04cc862c | 2671 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
2672 | ta1 |= t; |
2673 | } else { | |
2674 | ta1 = 0; | |
2675 | break; | |
2676 | } | |
04cc862c | 2677 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
2678 | ta2 |= t; |
2679 | } else { | |
2680 | ta1 = 0; | |
2681 | break; | |
2682 | } | |
2683 | } | |
2684 | if (ta1 == 0) { | |
2685 | /* This is sheer paranoia, but we handle it anyway */ | |
2686 | if (acpi_tmp7) { | |
2687 | printk(IBM_ERR | |
2688 | "ThinkPad ACPI EC access misbehaving, " | |
2689 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 2690 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 HMH |
2691 | } else { |
2692 | printk(IBM_ERR | |
2693 | "ThinkPad ACPI EC access misbehaving, " | |
2694 | "disabling thermal sensors access\n"); | |
efa27145 | 2695 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
2696 | } |
2697 | } else { | |
2698 | thermal_read_mode = | |
2699 | (ta2 != 0) ? | |
efa27145 | 2700 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
2701 | } |
2702 | } else if (acpi_tmp7) { | |
a26f878a HMH |
2703 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
2704 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2705 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
2706 | } else { |
2707 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 2708 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
2709 | } |
2710 | } else { | |
2711 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 2712 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 2713 | } |
78f81cc4 | 2714 | |
fe08bc4b HMH |
2715 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
2716 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
2717 | thermal_read_mode); | |
2718 | ||
2c37aa4e HMH |
2719 | switch(thermal_read_mode) { |
2720 | case TPACPI_THERMAL_TPEC_16: | |
2721 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2722 | &thermal_temp_input16_group); | |
2723 | if (res) | |
2724 | return res; | |
2725 | break; | |
2726 | case TPACPI_THERMAL_TPEC_8: | |
2727 | case TPACPI_THERMAL_ACPI_TMP07: | |
2728 | case TPACPI_THERMAL_ACPI_UPDT: | |
2729 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2730 | &thermal_temp_input8_group); | |
2731 | if (res) | |
2732 | return res; | |
2733 | break; | |
2734 | case TPACPI_THERMAL_NONE: | |
2735 | default: | |
2736 | return 1; | |
2737 | } | |
2738 | ||
2739 | return 0; | |
2740 | } | |
2741 | ||
2742 | static void thermal_exit(void) | |
2743 | { | |
2744 | switch(thermal_read_mode) { | |
2745 | case TPACPI_THERMAL_TPEC_16: | |
2746 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2747 | &thermal_temp_input16_group); | |
2748 | break; | |
2749 | case TPACPI_THERMAL_TPEC_8: | |
2750 | case TPACPI_THERMAL_ACPI_TMP07: | |
2751 | case TPACPI_THERMAL_ACPI_UPDT: | |
2752 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2753 | &thermal_temp_input16_group); | |
2754 | break; | |
2755 | case TPACPI_THERMAL_NONE: | |
2756 | default: | |
2757 | break; | |
2758 | } | |
78f81cc4 BD |
2759 | } |
2760 | ||
04cc862c HMH |
2761 | /* idx is zero-based */ |
2762 | static int thermal_get_sensor(int idx, s32 *value) | |
78f81cc4 | 2763 | { |
04cc862c | 2764 | int t; |
60eb0b35 | 2765 | s8 tmp; |
04cc862c | 2766 | char tmpi[5]; |
78f81cc4 | 2767 | |
04cc862c | 2768 | t = TP_EC_THERMAL_TMP0; |
78f81cc4 | 2769 | |
a26f878a | 2770 | switch (thermal_read_mode) { |
efa27145 HMH |
2771 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 |
2772 | case TPACPI_THERMAL_TPEC_16: | |
04cc862c HMH |
2773 | if (idx >= 8 && idx <= 15) { |
2774 | t = TP_EC_THERMAL_TMP8; | |
2775 | idx -= 8; | |
60eb0b35 HMH |
2776 | } |
2777 | /* fallthrough */ | |
2778 | #endif | |
efa27145 | 2779 | case TPACPI_THERMAL_TPEC_8: |
04cc862c HMH |
2780 | if (idx <= 7) { |
2781 | if (!acpi_ec_read(t + idx, &tmp)) | |
78f81cc4 | 2782 | return -EIO; |
04cc862c HMH |
2783 | *value = tmp * 1000; |
2784 | return 0; | |
60eb0b35 | 2785 | } |
04cc862c | 2786 | break; |
78f81cc4 | 2787 | |
efa27145 | 2788 | case TPACPI_THERMAL_ACPI_UPDT: |
04cc862c HMH |
2789 | if (idx <= 7) { |
2790 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
2791 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
2792 | return -EIO; | |
78f81cc4 BD |
2793 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
2794 | return -EIO; | |
04cc862c HMH |
2795 | *value = (t - 2732) * 100; |
2796 | return 0; | |
78f81cc4 | 2797 | } |
04cc862c | 2798 | break; |
78f81cc4 | 2799 | |
efa27145 | 2800 | case TPACPI_THERMAL_ACPI_TMP07: |
04cc862c HMH |
2801 | if (idx <= 7) { |
2802 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
78f81cc4 BD |
2803 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
2804 | return -EIO; | |
04cc862c HMH |
2805 | *value = t * 1000; |
2806 | return 0; | |
78f81cc4 | 2807 | } |
04cc862c | 2808 | break; |
78f81cc4 | 2809 | |
efa27145 | 2810 | case TPACPI_THERMAL_NONE: |
a26f878a | 2811 | default: |
04cc862c HMH |
2812 | return -ENOSYS; |
2813 | } | |
2814 | ||
2815 | return -EINVAL; | |
2816 | } | |
2817 | ||
2818 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
2819 | { | |
2820 | int res, i; | |
2821 | int n; | |
2822 | ||
2823 | n = 8; | |
2824 | i = 0; | |
2825 | ||
2826 | if (!s) | |
2827 | return -EINVAL; | |
2828 | ||
2829 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
2830 | n = 16; | |
2831 | ||
2832 | for(i = 0 ; i < n; i++) { | |
2833 | res = thermal_get_sensor(i, &s->temp[i]); | |
2834 | if (res) | |
2835 | return res; | |
78f81cc4 | 2836 | } |
04cc862c HMH |
2837 | |
2838 | return n; | |
a26f878a HMH |
2839 | } |
2840 | ||
2841 | static int thermal_read(char *p) | |
2842 | { | |
2843 | int len = 0; | |
2844 | int n, i; | |
2845 | struct ibm_thermal_sensors_struct t; | |
2846 | ||
2847 | n = thermal_get_sensors(&t); | |
2848 | if (unlikely(n < 0)) | |
2849 | return n; | |
2850 | ||
2851 | len += sprintf(p + len, "temperatures:\t"); | |
2852 | ||
2853 | if (n > 0) { | |
2854 | for (i = 0; i < (n - 1); i++) | |
2855 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
2856 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
2857 | } else | |
2858 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
2859 | |
2860 | return len; | |
2861 | } | |
2862 | ||
a5763f22 HMH |
2863 | static struct ibm_struct thermal_driver_data = { |
2864 | .name = "thermal", | |
2865 | .read = thermal_read, | |
2c37aa4e | 2866 | .exit = thermal_exit, |
a5763f22 HMH |
2867 | }; |
2868 | ||
56b6aeb0 HMH |
2869 | /************************************************************************* |
2870 | * EC Dump subdriver | |
2871 | */ | |
2872 | ||
78f81cc4 BD |
2873 | static u8 ecdump_regs[256]; |
2874 | ||
2875 | static int ecdump_read(char *p) | |
2876 | { | |
2877 | int len = 0; | |
2878 | int i, j; | |
2879 | u8 v; | |
2880 | ||
2881 | len += sprintf(p + len, "EC " | |
2882 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
2883 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
2884 | for (i = 0; i < 256; i += 16) { | |
2885 | len += sprintf(p + len, "EC 0x%02x:", i); | |
2886 | for (j = 0; j < 16; j++) { | |
2887 | if (!acpi_ec_read(i + j, &v)) | |
2888 | break; | |
2889 | if (v != ecdump_regs[i + j]) | |
2890 | len += sprintf(p + len, " *%02x", v); | |
2891 | else | |
2892 | len += sprintf(p + len, " %02x", v); | |
2893 | ecdump_regs[i + j] = v; | |
2894 | } | |
2895 | len += sprintf(p + len, "\n"); | |
2896 | if (j != 16) | |
2897 | break; | |
2898 | } | |
2899 | ||
2900 | /* These are way too dangerous to advertise openly... */ | |
2901 | #if 0 | |
2902 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
2903 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
2904 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
2905 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
2906 | #endif | |
2907 | return len; | |
2908 | } | |
2909 | ||
2910 | static int ecdump_write(char *buf) | |
2911 | { | |
2912 | char *cmd; | |
2913 | int i, v; | |
2914 | ||
2915 | while ((cmd = next_cmd(&buf))) { | |
2916 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
2917 | /* i and v set */ | |
2918 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
2919 | /* i and v set */ | |
2920 | } else | |
2921 | return -EINVAL; | |
2922 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
2923 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
2924 | return -EIO; |
2925 | } else | |
2926 | return -EINVAL; | |
2927 | } | |
2928 | ||
2929 | return 0; | |
78f81cc4 BD |
2930 | } |
2931 | ||
a5763f22 HMH |
2932 | static struct ibm_struct ecdump_driver_data = { |
2933 | .name = "ecdump", | |
2934 | .read = ecdump_read, | |
2935 | .write = ecdump_write, | |
92641177 | 2936 | .flags.experimental = 1, |
a5763f22 HMH |
2937 | }; |
2938 | ||
56b6aeb0 HMH |
2939 | /************************************************************************* |
2940 | * Backlight/brightness subdriver | |
2941 | */ | |
2942 | ||
94954cc6 | 2943 | static struct backlight_device *ibm_backlight_device; |
56b6aeb0 HMH |
2944 | |
2945 | static struct backlight_ops ibm_backlight_data = { | |
2946 | .get_brightness = brightness_get, | |
2947 | .update_status = brightness_update_status, | |
2948 | }; | |
2949 | ||
a5763f22 | 2950 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
2951 | { |
2952 | int b; | |
2953 | ||
fe08bc4b HMH |
2954 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
2955 | ||
24d3b774 HMH |
2956 | if (!brightness_mode) { |
2957 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
2958 | brightness_mode = 2; | |
2959 | else | |
2960 | brightness_mode = 3; | |
2961 | ||
2962 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
2963 | brightness_mode); | |
2964 | } | |
2965 | ||
2966 | if (brightness_mode > 3) | |
2967 | return -EINVAL; | |
2968 | ||
56b6aeb0 HMH |
2969 | b = brightness_get(NULL); |
2970 | if (b < 0) | |
24d3b774 | 2971 | return 1; |
56b6aeb0 | 2972 | |
7d5a015e HMH |
2973 | ibm_backlight_device = backlight_device_register( |
2974 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
2975 | &ibm_backlight_data); | |
56b6aeb0 HMH |
2976 | if (IS_ERR(ibm_backlight_device)) { |
2977 | printk(IBM_ERR "Could not register backlight device\n"); | |
2978 | return PTR_ERR(ibm_backlight_device); | |
2979 | } | |
fe08bc4b | 2980 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 HMH |
2981 | |
2982 | ibm_backlight_device->props.max_brightness = 7; | |
2983 | ibm_backlight_device->props.brightness = b; | |
2984 | backlight_update_status(ibm_backlight_device); | |
2985 | ||
2986 | return 0; | |
2987 | } | |
2988 | ||
2989 | static void brightness_exit(void) | |
2990 | { | |
2991 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
2992 | vdbg_printk(TPACPI_DBG_EXIT, |
2993 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
2994 | backlight_device_unregister(ibm_backlight_device); |
2995 | ibm_backlight_device = NULL; | |
2996 | } | |
2997 | } | |
2998 | ||
2999 | static int brightness_update_status(struct backlight_device *bd) | |
3000 | { | |
3001 | return brightness_set( | |
3002 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
3003 | bd->props.power == FB_BLANK_UNBLANK) ? | |
3004 | bd->props.brightness : 0); | |
3005 | } | |
3006 | ||
24d3b774 HMH |
3007 | /* |
3008 | * ThinkPads can read brightness from two places: EC 0x31, or | |
3009 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
3010 | */ | |
8acb0250 HM |
3011 | static int brightness_get(struct backlight_device *bd) |
3012 | { | |
24d3b774 | 3013 | u8 lec = 0, lcmos = 0, level = 0; |
8acb0250 | 3014 | |
24d3b774 HMH |
3015 | if (brightness_mode & 1) { |
3016 | if (!acpi_ec_read(brightness_offset, &lec)) | |
3017 | return -EIO; | |
3018 | lec &= 7; | |
3019 | level = lec; | |
3020 | }; | |
3021 | if (brightness_mode & 2) { | |
3022 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
3023 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
3024 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
3025 | level = lcmos; | |
3026 | } | |
3027 | ||
3028 | if (brightness_mode == 3 && lec != lcmos) { | |
3029 | printk(IBM_ERR | |
3030 | "CMOS NVRAM (%u) and EC (%u) do not agree " | |
3031 | "on display brightness level\n", | |
3032 | (unsigned int) lcmos, | |
3033 | (unsigned int) lec); | |
3034 | return -EIO; | |
3035 | } | |
fb87a811 | 3036 | |
8d297264 | 3037 | return level; |
8acb0250 HM |
3038 | } |
3039 | ||
8acb0250 | 3040 | static int brightness_set(int value) |
1da177e4 | 3041 | { |
78f81cc4 | 3042 | int cmos_cmd, inc, i; |
8acb0250 HM |
3043 | int current_value = brightness_get(NULL); |
3044 | ||
24d3b774 HMH |
3045 | if (value > 7) |
3046 | return -EINVAL; | |
8acb0250 | 3047 | |
24d3b774 HMH |
3048 | cmos_cmd = value > current_value ? |
3049 | TP_CMOS_BRIGHTNESS_UP : | |
3050 | TP_CMOS_BRIGHTNESS_DOWN; | |
8acb0250 | 3051 | inc = value > current_value ? 1 : -1; |
24d3b774 | 3052 | |
8acb0250 | 3053 | for (i = current_value; i != value; i += inc) { |
24d3b774 HMH |
3054 | if ((brightness_mode & 2) && |
3055 | issue_thinkpad_cmos_command(cmos_cmd)) | |
8acb0250 | 3056 | return -EIO; |
24d3b774 HMH |
3057 | if ((brightness_mode & 1) && |
3058 | !acpi_ec_write(brightness_offset, i + inc)) | |
8acb0250 HM |
3059 | return -EIO; |
3060 | } | |
3061 | ||
3062 | return 0; | |
3063 | } | |
3064 | ||
56b6aeb0 HMH |
3065 | static int brightness_read(char *p) |
3066 | { | |
3067 | int len = 0; | |
3068 | int level; | |
3069 | ||
3070 | if ((level = brightness_get(NULL)) < 0) { | |
3071 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
3072 | } else { | |
3073 | len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); | |
3074 | len += sprintf(p + len, "commands:\tup, down\n"); | |
3075 | len += sprintf(p + len, "commands:\tlevel <level>" | |
3076 | " (<level> is 0-7)\n"); | |
3077 | } | |
3078 | ||
3079 | return len; | |
3080 | } | |
3081 | ||
8acb0250 HM |
3082 | static int brightness_write(char *buf) |
3083 | { | |
3084 | int level; | |
78f81cc4 | 3085 | int new_level; |
1da177e4 | 3086 | char *cmd; |
1da177e4 LT |
3087 | |
3088 | while ((cmd = next_cmd(&buf))) { | |
8acb0250 HM |
3089 | if ((level = brightness_get(NULL)) < 0) |
3090 | return level; | |
78f81cc4 BD |
3091 | level &= 7; |
3092 | ||
3093 | if (strlencmp(cmd, "up") == 0) { | |
3094 | new_level = level == 7 ? 7 : level + 1; | |
3095 | } else if (strlencmp(cmd, "down") == 0) { | |
3096 | new_level = level == 0 ? 0 : level - 1; | |
3097 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
3098 | new_level >= 0 && new_level <= 7) { | |
3099 | /* new_level set */ | |
3100 | } else | |
3101 | return -EINVAL; | |
3102 | ||
8acb0250 | 3103 | brightness_set(new_level); |
78f81cc4 BD |
3104 | } |
3105 | ||
3106 | return 0; | |
3107 | } | |
3108 | ||
a5763f22 HMH |
3109 | static struct ibm_struct brightness_driver_data = { |
3110 | .name = "brightness", | |
3111 | .read = brightness_read, | |
3112 | .write = brightness_write, | |
3113 | .exit = brightness_exit, | |
3114 | }; | |
3115 | ||
56b6aeb0 HMH |
3116 | /************************************************************************* |
3117 | * Volume subdriver | |
3118 | */ | |
fb87a811 | 3119 | |
78f81cc4 BD |
3120 | static int volume_read(char *p) |
3121 | { | |
3122 | int len = 0; | |
3123 | u8 level; | |
3124 | ||
3125 | if (!acpi_ec_read(volume_offset, &level)) { | |
3126 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
3127 | } else { | |
3128 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
3129 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
3130 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
3131 | len += sprintf(p + len, "commands:\tlevel <level>" | |
3132 | " (<level> is 0-15)\n"); | |
3133 | } | |
3134 | ||
3135 | return len; | |
3136 | } | |
3137 | ||
78f81cc4 BD |
3138 | static int volume_write(char *buf) |
3139 | { | |
3140 | int cmos_cmd, inc, i; | |
3141 | u8 level, mute; | |
3142 | int new_level, new_mute; | |
3143 | char *cmd; | |
3144 | ||
3145 | while ((cmd = next_cmd(&buf))) { | |
3146 | if (!acpi_ec_read(volume_offset, &level)) | |
3147 | return -EIO; | |
3148 | new_mute = mute = level & 0x40; | |
3149 | new_level = level = level & 0xf; | |
3150 | ||
3151 | if (strlencmp(cmd, "up") == 0) { | |
3152 | if (mute) | |
3153 | new_mute = 0; | |
3154 | else | |
3155 | new_level = level == 15 ? 15 : level + 1; | |
3156 | } else if (strlencmp(cmd, "down") == 0) { | |
3157 | if (mute) | |
3158 | new_mute = 0; | |
3159 | else | |
3160 | new_level = level == 0 ? 0 : level - 1; | |
3161 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
3162 | new_level >= 0 && new_level <= 15) { | |
3163 | /* new_level set */ | |
3164 | } else if (strlencmp(cmd, "mute") == 0) { | |
3165 | new_mute = 0x40; | |
1da177e4 LT |
3166 | } else |
3167 | return -EINVAL; | |
3168 | ||
78f81cc4 | 3169 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 3170 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
3171 | inc = new_level > level ? 1 : -1; |
3172 | ||
c9bea99c | 3173 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
3174 | !acpi_ec_write(volume_offset, level))) |
3175 | return -EIO; | |
3176 | ||
3177 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 3178 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
3179 | !acpi_ec_write(volume_offset, i + inc)) |
3180 | return -EIO; | |
3181 | ||
c9bea99c | 3182 | if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
3183 | !acpi_ec_write(volume_offset, |
3184 | new_level + mute))) | |
3185 | return -EIO; | |
3186 | } | |
3187 | ||
3188 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 3189 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 | 3190 | |
c9bea99c | 3191 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
3192 | !acpi_ec_write(volume_offset, level + new_mute)) |
3193 | return -EIO; | |
3194 | } | |
3195 | } | |
3196 | ||
3197 | return 0; | |
3198 | } | |
3199 | ||
a5763f22 HMH |
3200 | static struct ibm_struct volume_driver_data = { |
3201 | .name = "volume", | |
3202 | .read = volume_read, | |
3203 | .write = volume_write, | |
3204 | }; | |
56b6aeb0 HMH |
3205 | |
3206 | /************************************************************************* | |
3207 | * Fan subdriver | |
3208 | */ | |
3209 | ||
3210 | /* | |
3211 | * FAN ACCESS MODES | |
3212 | * | |
efa27145 | 3213 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
3214 | * ACPI GFAN method: returns fan level |
3215 | * | |
efa27145 | 3216 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 3217 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 3218 | * |
efa27145 | 3219 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
3220 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
3221 | * | |
f51d1a39 HMH |
3222 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
3223 | * it for writing. | |
56b6aeb0 | 3224 | * |
efa27145 | 3225 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
3226 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
3227 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
3228 | * |
3229 | * Fan speed changes of any sort (including those caused by the | |
3230 | * disengaged mode) are usually done slowly by the firmware as the | |
3231 | * maximum ammount of fan duty cycle change per second seems to be | |
3232 | * limited. | |
3233 | * | |
3234 | * Reading is not available if GFAN exists. | |
3235 | * Writing is not available if SFAN exists. | |
3236 | * | |
3237 | * Bits | |
3238 | * 7 automatic mode engaged; | |
3239 | * (default operation mode of the ThinkPad) | |
3240 | * fan level is ignored in this mode. | |
f51d1a39 | 3241 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 3242 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
3243 | * the tachometer while the fan controller ramps up |
3244 | * the speed (which can take up to a few *minutes*). | |
3245 | * Speeds up fan to 100% duty-cycle, which is far above | |
3246 | * the standard RPM levels. It is not impossible that | |
3247 | * it could cause hardware damage. | |
56b6aeb0 HMH |
3248 | * 5-3 unused in some models. Extra bits for fan level |
3249 | * in others, but still useless as all values above | |
3250 | * 7 map to the same speed as level 7 in these models. | |
3251 | * 2-0 fan level (0..7 usually) | |
3252 | * 0x00 = stop | |
3253 | * 0x07 = max (set when temperatures critical) | |
3254 | * Some ThinkPads may have other levels, see | |
efa27145 | 3255 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
3256 | * |
3257 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
3258 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
3259 | * does so, its initial value is meaningless (0x07). | |
3260 | * | |
3261 | * For firmware bugs, refer to: | |
3262 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
3263 | * | |
3264 | * ---- | |
3265 | * | |
3266 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
3267 | * Main fan tachometer reading (in RPM) | |
3268 | * | |
3269 | * This register is present on all ThinkPads with a new-style EC, and | |
3270 | * it is known not to be present on the A21m/e, and T22, as there is | |
3271 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
3272 | * ThinkPads from this same time period (and earlier) probably lack the | |
3273 | * tachometer as well. | |
3274 | * | |
3275 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
3276 | * was never fixed by IBM to report the EC firmware version string | |
3277 | * probably support the tachometer (like the early X models), so | |
3278 | * detecting it is quite hard. We need more data to know for sure. | |
3279 | * | |
3280 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
3281 | * might result. | |
3282 | * | |
f51d1a39 HMH |
3283 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
3284 | * mode. | |
56b6aeb0 HMH |
3285 | * |
3286 | * For firmware bugs, refer to: | |
3287 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
3288 | * | |
efa27145 | 3289 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
3290 | * ThinkPad X31, X40, X41. Not available in the X60. |
3291 | * | |
3292 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
3293 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
3294 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
3295 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
3296 | * | |
3297 | * The speeds are stored on handles | |
3298 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
3299 | * | |
3300 | * There are three default speed sets, acessible as handles: | |
3301 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
3302 | * | |
3303 | * ACPI DSDT switches which set is in use depending on various | |
3304 | * factors. | |
3305 | * | |
efa27145 | 3306 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
3307 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
3308 | * but the ACPI tables just mention level 7. | |
3309 | */ | |
3310 | ||
69ba91cb HMH |
3311 | static enum fan_status_access_mode fan_status_access_mode; |
3312 | static enum fan_control_access_mode fan_control_access_mode; | |
3313 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 3314 | |
778b4d74 | 3315 | static u8 fan_control_initial_status; |
fe98a52c | 3316 | static u8 fan_control_desired_level; |
778b4d74 | 3317 | |
25c68a33 | 3318 | static void fan_watchdog_fire(struct work_struct *ignored); |
16663a87 | 3319 | static int fan_watchdog_maxinterval; |
25c68a33 | 3320 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 3321 | |
56b6aeb0 HMH |
3322 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
3323 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
3324 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
3325 | ); /* all others */ | |
3326 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
3327 | "JFNS", /* 770x-JL */ | |
3328 | ); /* all others */ | |
3329 | ||
fe98a52c HMH |
3330 | /* |
3331 | * SYSFS fan layout: hwmon compatible (device) | |
3332 | * | |
3333 | * pwm*_enable: | |
3334 | * 0: "disengaged" mode | |
3335 | * 1: manual mode | |
3336 | * 2: native EC "auto" mode (recommended, hardware default) | |
3337 | * | |
3338 | * pwm*: set speed in manual mode, ignored otherwise. | |
3339 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
3340 | * interpolation. | |
3341 | * | |
3342 | * fan*_input: tachometer reading, RPM | |
3343 | * | |
3344 | * | |
3345 | * SYSFS fan layout: extensions | |
3346 | * | |
3347 | * fan_watchdog (driver): | |
3348 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
3349 | */ | |
3350 | ||
3351 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
3352 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
3353 | struct device_attribute *attr, | |
3354 | char *buf) | |
3355 | { | |
3356 | int res, mode; | |
3357 | u8 status; | |
3358 | ||
3359 | res = fan_get_status_safe(&status); | |
3360 | if (res) | |
3361 | return res; | |
3362 | ||
3363 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
3364 | if (status != fan_control_initial_status) { | |
3365 | tp_features.fan_ctrl_status_undef = 0; | |
3366 | } else { | |
3367 | /* Return most likely status. In fact, it | |
3368 | * might be the only possible status */ | |
3369 | status = TP_EC_FAN_AUTO; | |
3370 | } | |
3371 | } | |
3372 | ||
3373 | if (status & TP_EC_FAN_FULLSPEED) { | |
3374 | mode = 0; | |
3375 | } else if (status & TP_EC_FAN_AUTO) { | |
3376 | mode = 2; | |
3377 | } else | |
3378 | mode = 1; | |
3379 | ||
3380 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
3381 | } | |
3382 | ||
3383 | static ssize_t fan_pwm1_enable_store(struct device *dev, | |
3384 | struct device_attribute *attr, | |
3385 | const char *buf, size_t count) | |
3386 | { | |
3387 | unsigned long t; | |
3388 | int res, level; | |
3389 | ||
3390 | if (parse_strtoul(buf, 2, &t)) | |
3391 | return -EINVAL; | |
3392 | ||
3393 | switch (t) { | |
3394 | case 0: | |
3395 | level = TP_EC_FAN_FULLSPEED; | |
3396 | break; | |
3397 | case 1: | |
3398 | level = TPACPI_FAN_LAST_LEVEL; | |
3399 | break; | |
3400 | case 2: | |
3401 | level = TP_EC_FAN_AUTO; | |
3402 | break; | |
3403 | case 3: | |
3404 | /* reserved for software-controlled auto mode */ | |
3405 | return -ENOSYS; | |
3406 | default: | |
3407 | return -EINVAL; | |
3408 | } | |
3409 | ||
3410 | res = fan_set_level_safe(level); | |
c573ddb9 HMH |
3411 | if (res == -ENXIO) |
3412 | return -EINVAL; | |
3413 | else if (res < 0) | |
fe98a52c HMH |
3414 | return res; |
3415 | ||
3416 | fan_watchdog_reset(); | |
3417 | ||
3418 | return count; | |
3419 | } | |
3420 | ||
3421 | static struct device_attribute dev_attr_fan_pwm1_enable = | |
3422 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
3423 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
3424 | ||
3425 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
3426 | static ssize_t fan_pwm1_show(struct device *dev, | |
3427 | struct device_attribute *attr, | |
3428 | char *buf) | |
3429 | { | |
3430 | int res; | |
3431 | u8 status; | |
3432 | ||
3433 | res = fan_get_status_safe(&status); | |
3434 | if (res) | |
3435 | return res; | |
3436 | ||
3437 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
3438 | if (status != fan_control_initial_status) { | |
3439 | tp_features.fan_ctrl_status_undef = 0; | |
3440 | } else { | |
3441 | status = TP_EC_FAN_AUTO; | |
3442 | } | |
3443 | } | |
3444 | ||
3445 | if ((status & | |
3446 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
3447 | status = fan_control_desired_level; | |
3448 | ||
3449 | if (status > 7) | |
3450 | status = 7; | |
3451 | ||
3452 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); | |
3453 | } | |
3454 | ||
3455 | static ssize_t fan_pwm1_store(struct device *dev, | |
3456 | struct device_attribute *attr, | |
3457 | const char *buf, size_t count) | |
3458 | { | |
3459 | unsigned long s; | |
3460 | int rc; | |
3461 | u8 status, newlevel; | |
3462 | ||
3463 | if (parse_strtoul(buf, 255, &s)) | |
3464 | return -EINVAL; | |
3465 | ||
3466 | /* scale down from 0-255 to 0-7 */ | |
3467 | newlevel = (s >> 5) & 0x07; | |
3468 | ||
3469 | rc = mutex_lock_interruptible(&fan_mutex); | |
3470 | if (rc < 0) | |
3471 | return rc; | |
3472 | ||
3473 | rc = fan_get_status(&status); | |
3474 | if (!rc && (status & | |
3475 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
3476 | rc = fan_set_level(newlevel); | |
c573ddb9 HMH |
3477 | if (rc == -ENXIO) |
3478 | rc = -EINVAL; | |
3479 | else if (!rc) { | |
fe98a52c | 3480 | fan_update_desired_level(newlevel); |
ca4ac2f4 HMH |
3481 | fan_watchdog_reset(); |
3482 | } | |
fe98a52c HMH |
3483 | } |
3484 | ||
3485 | mutex_unlock(&fan_mutex); | |
3486 | return (rc)? rc : count; | |
3487 | } | |
3488 | ||
3489 | static struct device_attribute dev_attr_fan_pwm1 = | |
3490 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
3491 | fan_pwm1_show, fan_pwm1_store); | |
3492 | ||
3493 | /* sysfs fan fan1_input ------------------------------------------------ */ | |
3494 | static ssize_t fan_fan1_input_show(struct device *dev, | |
3495 | struct device_attribute *attr, | |
3496 | char *buf) | |
3497 | { | |
3498 | int res; | |
3499 | unsigned int speed; | |
3500 | ||
3501 | res = fan_get_speed(&speed); | |
3502 | if (res < 0) | |
3503 | return res; | |
3504 | ||
3505 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
3506 | } | |
3507 | ||
3508 | static struct device_attribute dev_attr_fan_fan1_input = | |
3509 | __ATTR(fan1_input, S_IRUGO, | |
3510 | fan_fan1_input_show, NULL); | |
3511 | ||
3512 | /* sysfs fan fan_watchdog (driver) ------------------------------------- */ | |
3513 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
3514 | char *buf) | |
3515 | { | |
3516 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
3517 | } | |
3518 | ||
3519 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, | |
3520 | const char *buf, size_t count) | |
3521 | { | |
3522 | unsigned long t; | |
3523 | ||
3524 | if (parse_strtoul(buf, 120, &t)) | |
3525 | return -EINVAL; | |
3526 | ||
ecf2a80a HMH |
3527 | if (!fan_control_allowed) |
3528 | return -EPERM; | |
3529 | ||
fe98a52c HMH |
3530 | fan_watchdog_maxinterval = t; |
3531 | fan_watchdog_reset(); | |
3532 | ||
3533 | return count; | |
3534 | } | |
3535 | ||
3536 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
3537 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
3538 | ||
3539 | /* --------------------------------------------------------------------- */ | |
3540 | static struct attribute *fan_attributes[] = { | |
3541 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
3542 | &dev_attr_fan_fan1_input.attr, | |
3543 | NULL | |
3544 | }; | |
3545 | ||
3546 | static const struct attribute_group fan_attr_group = { | |
3547 | .attrs = fan_attributes, | |
3548 | }; | |
3549 | ||
a5763f22 | 3550 | static int __init fan_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3551 | { |
fe98a52c HMH |
3552 | int rc; |
3553 | ||
fe08bc4b HMH |
3554 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); |
3555 | ||
40ca9fdf | 3556 | mutex_init(&fan_mutex); |
efa27145 HMH |
3557 | fan_status_access_mode = TPACPI_FAN_NONE; |
3558 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
69ba91cb | 3559 | fan_control_commands = 0; |
16663a87 | 3560 | fan_watchdog_maxinterval = 0; |
d8fd94d9 | 3561 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 3562 | fan_control_desired_level = 7; |
78f81cc4 | 3563 | |
8d376cd6 HMH |
3564 | IBM_ACPIHANDLE_INIT(fans); |
3565 | IBM_ACPIHANDLE_INIT(gfan); | |
3566 | IBM_ACPIHANDLE_INIT(sfan); | |
5fba344c | 3567 | |
78f81cc4 BD |
3568 | if (gfan_handle) { |
3569 | /* 570, 600e/x, 770e, 770x */ | |
efa27145 | 3570 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; |
69ba91cb HMH |
3571 | } else { |
3572 | /* all other ThinkPads: note that even old-style | |
3573 | * ThinkPad ECs supports the fan control register */ | |
778b4d74 HMH |
3574 | if (likely(acpi_ec_read(fan_status_offset, |
3575 | &fan_control_initial_status))) { | |
efa27145 | 3576 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; |
778b4d74 HMH |
3577 | |
3578 | /* In some ThinkPads, neither the EC nor the ACPI | |
3579 | * DSDT initialize the fan status, and it ends up | |
3580 | * being set to 0x07 when it *could* be either | |
3581 | * 0x07 or 0x80. | |
3582 | * | |
3583 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
3584 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
3585 | * to be buggy. */ | |
d5a2f2f1 HMH |
3586 | if (fan_control_initial_status == 0x07) { |
3587 | switch (thinkpad_id.ec_model) { | |
3588 | case 0x5931: /* TP-1Y */ | |
3589 | case 0x3837: /* TP-78 */ | |
3590 | case 0x3637: /* TP-76 */ | |
3591 | case 0x3037: /* TP-70 */ | |
3592 | printk(IBM_NOTICE | |
3593 | "fan_init: initial fan status is " | |
3594 | "unknown, assuming it is in auto " | |
3595 | "mode\n"); | |
3596 | tp_features.fan_ctrl_status_undef = 1; | |
3597 | ;; | |
3598 | } | |
778b4d74 | 3599 | } |
69ba91cb HMH |
3600 | } else { |
3601 | printk(IBM_ERR | |
3602 | "ThinkPad ACPI EC access misbehaving, " | |
3603 | "fan status and control unavailable\n"); | |
5fba344c | 3604 | return 1; |
69ba91cb HMH |
3605 | } |
3606 | } | |
78f81cc4 | 3607 | |
69ba91cb HMH |
3608 | if (sfan_handle) { |
3609 | /* 570, 770x-JL */ | |
efa27145 | 3610 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; |
1c6a334e | 3611 | fan_control_commands |= |
efa27145 | 3612 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; |
78f81cc4 | 3613 | } else { |
69ba91cb HMH |
3614 | if (!gfan_handle) { |
3615 | /* gfan without sfan means no fan control */ | |
3616 | /* all other models implement TP EC 0x2f control */ | |
3617 | ||
3618 | if (fans_handle) { | |
a8b7a662 | 3619 | /* X31, X40, X41 */ |
69ba91cb | 3620 | fan_control_access_mode = |
efa27145 | 3621 | TPACPI_FAN_WR_ACPI_FANS; |
69ba91cb | 3622 | fan_control_commands |= |
efa27145 HMH |
3623 | TPACPI_FAN_CMD_SPEED | |
3624 | TPACPI_FAN_CMD_LEVEL | | |
3625 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb | 3626 | } else { |
efa27145 | 3627 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; |
a12095c2 | 3628 | fan_control_commands |= |
efa27145 HMH |
3629 | TPACPI_FAN_CMD_LEVEL | |
3630 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
3631 | } |
3632 | } | |
3633 | } | |
3634 | ||
fe08bc4b HMH |
3635 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
3636 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
3637 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
3638 | fan_status_access_mode, fan_control_access_mode); | |
3639 | ||
ecf2a80a HMH |
3640 | /* fan control master switch */ |
3641 | if (!fan_control_allowed) { | |
3642 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
3643 | fan_control_commands = 0; | |
3644 | dbg_printk(TPACPI_DBG_INIT, | |
3645 | "fan control features disabled by parameter\n"); | |
3646 | } | |
3647 | ||
fe98a52c HMH |
3648 | /* update fan_control_desired_level */ |
3649 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
3650 | fan_get_status_safe(NULL); | |
3651 | ||
3652 | if (fan_status_access_mode != TPACPI_FAN_NONE || | |
3653 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
3654 | rc = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
3655 | &fan_attr_group); | |
3656 | if (!(rc < 0)) | |
3657 | rc = driver_create_file(&tpacpi_pdriver.driver, | |
3658 | &driver_attr_fan_watchdog); | |
3659 | if (rc < 0) | |
3660 | return rc; | |
3661 | return 0; | |
3662 | } else | |
3663 | return 1; | |
3664 | } | |
3665 | ||
3666 | /* | |
3667 | * Call with fan_mutex held | |
3668 | */ | |
3669 | static void fan_update_desired_level(u8 status) | |
3670 | { | |
3671 | if ((status & | |
3672 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
3673 | if (status > 7) | |
3674 | fan_control_desired_level = 7; | |
3675 | else | |
3676 | fan_control_desired_level = status; | |
3677 | } | |
69ba91cb | 3678 | } |
78f81cc4 | 3679 | |
c52f0aa5 | 3680 | static int fan_get_status(u8 *status) |
78f81cc4 | 3681 | { |
c52f0aa5 | 3682 | u8 s; |
78f81cc4 | 3683 | |
a8b7a662 | 3684 | /* TODO: |
efa27145 | 3685 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ |
a8b7a662 | 3686 | |
3ef8a609 | 3687 | switch (fan_status_access_mode) { |
efa27145 | 3688 | case TPACPI_FAN_RD_ACPI_GFAN: |
78f81cc4 | 3689 | /* 570, 600e/x, 770e, 770x */ |
c52f0aa5 HMH |
3690 | |
3691 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) | |
1da177e4 | 3692 | return -EIO; |
78f81cc4 | 3693 | |
c52f0aa5 HMH |
3694 | if (likely(status)) |
3695 | *status = s & 0x07; | |
3ef8a609 HMH |
3696 | |
3697 | break; | |
3698 | ||
efa27145 | 3699 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 3700 | /* all except 570, 600e/x, 770e, 770x */ |
c52f0aa5 | 3701 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
3ef8a609 | 3702 | return -EIO; |
78f81cc4 | 3703 | |
c52f0aa5 HMH |
3704 | if (likely(status)) |
3705 | *status = s; | |
3706 | ||
3707 | break; | |
3708 | ||
3709 | default: | |
3710 | return -ENXIO; | |
78f81cc4 BD |
3711 | } |
3712 | ||
c52f0aa5 HMH |
3713 | return 0; |
3714 | } | |
3715 | ||
fe98a52c HMH |
3716 | static int fan_get_status_safe(u8 *status) |
3717 | { | |
3718 | int rc; | |
3719 | u8 s; | |
3720 | ||
3721 | rc = mutex_lock_interruptible(&fan_mutex); | |
3722 | if (rc < 0) | |
3723 | return rc; | |
3724 | rc = fan_get_status(&s); | |
3725 | if (!rc) | |
3726 | fan_update_desired_level(s); | |
3727 | mutex_unlock(&fan_mutex); | |
3728 | ||
3729 | if (status) | |
3730 | *status = s; | |
3731 | ||
3732 | return rc; | |
3733 | } | |
3734 | ||
56b6aeb0 HMH |
3735 | static void fan_exit(void) |
3736 | { | |
99fba3f8 | 3737 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n"); |
fe98a52c HMH |
3738 | |
3739 | /* FIXME: can we really do this unconditionally? */ | |
3740 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, &fan_attr_group); | |
3741 | driver_remove_file(&tpacpi_pdriver.driver, &driver_attr_fan_watchdog); | |
3742 | ||
56b6aeb0 HMH |
3743 | cancel_delayed_work(&fan_watchdog_task); |
3744 | flush_scheduled_work(); | |
3745 | } | |
3746 | ||
c52f0aa5 HMH |
3747 | static int fan_get_speed(unsigned int *speed) |
3748 | { | |
3749 | u8 hi, lo; | |
3750 | ||
3751 | switch (fan_status_access_mode) { | |
efa27145 | 3752 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 3753 | /* all except 570, 600e/x, 770e, 770x */ |
3ef8a609 HMH |
3754 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
3755 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
3756 | return -EIO; | |
3ef8a609 | 3757 | |
c52f0aa5 HMH |
3758 | if (likely(speed)) |
3759 | *speed = (hi << 8) | lo; | |
3760 | ||
3761 | break; | |
3762 | ||
3763 | default: | |
3764 | return -ENXIO; | |
3765 | } | |
3766 | ||
3767 | return 0; | |
3768 | } | |
3769 | ||
56b6aeb0 | 3770 | static void fan_watchdog_fire(struct work_struct *ignored) |
16663a87 | 3771 | { |
99fba3f8 HMH |
3772 | int rc; |
3773 | ||
56b6aeb0 | 3774 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); |
99fba3f8 HMH |
3775 | rc = fan_set_enable(); |
3776 | if (rc < 0) { | |
3777 | printk(IBM_ERR "fan watchdog: error %d while enabling fan, " | |
3778 | "will try again later...\n", -rc); | |
56b6aeb0 HMH |
3779 | /* reschedule for later */ |
3780 | fan_watchdog_reset(); | |
3781 | } | |
16663a87 HMH |
3782 | } |
3783 | ||
3784 | static void fan_watchdog_reset(void) | |
3785 | { | |
94954cc6 | 3786 | static int fan_watchdog_active; |
16663a87 | 3787 | |
4985cd0a HMH |
3788 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
3789 | return; | |
3790 | ||
16663a87 HMH |
3791 | if (fan_watchdog_active) |
3792 | cancel_delayed_work(&fan_watchdog_task); | |
3793 | ||
3794 | if (fan_watchdog_maxinterval > 0) { | |
3795 | fan_watchdog_active = 1; | |
3796 | if (!schedule_delayed_work(&fan_watchdog_task, | |
3797 | msecs_to_jiffies(fan_watchdog_maxinterval | |
3798 | * 1000))) { | |
3799 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
3800 | "watchdog will not trigger\n"); | |
3801 | } | |
3802 | } else | |
3803 | fan_watchdog_active = 0; | |
3804 | } | |
3805 | ||
18ad7996 | 3806 | static int fan_set_level(int level) |
78f81cc4 | 3807 | { |
ecf2a80a HMH |
3808 | if (!fan_control_allowed) |
3809 | return -EPERM; | |
3810 | ||
18ad7996 | 3811 | switch (fan_control_access_mode) { |
efa27145 | 3812 | case TPACPI_FAN_WR_ACPI_SFAN: |
18ad7996 | 3813 | if (level >= 0 && level <= 7) { |
fe98a52c | 3814 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
78f81cc4 | 3815 | return -EIO; |
18ad7996 HMH |
3816 | } else |
3817 | return -EINVAL; | |
3818 | break; | |
3819 | ||
efa27145 HMH |
3820 | case TPACPI_FAN_WR_ACPI_FANS: |
3821 | case TPACPI_FAN_WR_TPEC: | |
3822 | if ((level != TP_EC_FAN_AUTO) && | |
3823 | (level != TP_EC_FAN_FULLSPEED) && | |
a12095c2 HMH |
3824 | ((level < 0) || (level > 7))) |
3825 | return -EINVAL; | |
3826 | ||
eaa7571b HMH |
3827 | /* safety net should the EC not support AUTO |
3828 | * or FULLSPEED mode bits and just ignore them */ | |
3829 | if (level & TP_EC_FAN_FULLSPEED) | |
3830 | level |= 7; /* safety min speed 7 */ | |
3831 | else if (level & TP_EC_FAN_FULLSPEED) | |
3832 | level |= 4; /* safety min speed 4 */ | |
3833 | ||
fe98a52c | 3834 | if (!acpi_ec_write(fan_status_offset, level)) |
a12095c2 | 3835 | return -EIO; |
778b4d74 | 3836 | else |
d8fd94d9 | 3837 | tp_features.fan_ctrl_status_undef = 0; |
a12095c2 HMH |
3838 | break; |
3839 | ||
18ad7996 HMH |
3840 | default: |
3841 | return -ENXIO; | |
3842 | } | |
3843 | return 0; | |
3844 | } | |
3845 | ||
fe98a52c HMH |
3846 | static int fan_set_level_safe(int level) |
3847 | { | |
3848 | int rc; | |
3849 | ||
ecf2a80a HMH |
3850 | if (!fan_control_allowed) |
3851 | return -EPERM; | |
3852 | ||
fe98a52c HMH |
3853 | rc = mutex_lock_interruptible(&fan_mutex); |
3854 | if (rc < 0) | |
3855 | return rc; | |
3856 | ||
3857 | if (level == TPACPI_FAN_LAST_LEVEL) | |
3858 | level = fan_control_desired_level; | |
3859 | ||
3860 | rc = fan_set_level(level); | |
3861 | if (!rc) | |
3862 | fan_update_desired_level(level); | |
3863 | ||
3864 | mutex_unlock(&fan_mutex); | |
3865 | return rc; | |
3866 | } | |
3867 | ||
18ad7996 HMH |
3868 | static int fan_set_enable(void) |
3869 | { | |
1c6a334e HMH |
3870 | u8 s; |
3871 | int rc; | |
3872 | ||
ecf2a80a HMH |
3873 | if (!fan_control_allowed) |
3874 | return -EPERM; | |
3875 | ||
40ca9fdf HMH |
3876 | rc = mutex_lock_interruptible(&fan_mutex); |
3877 | if (rc < 0) | |
3878 | return rc; | |
3879 | ||
18ad7996 | 3880 | switch (fan_control_access_mode) { |
efa27145 HMH |
3881 | case TPACPI_FAN_WR_ACPI_FANS: |
3882 | case TPACPI_FAN_WR_TPEC: | |
40ca9fdf HMH |
3883 | rc = fan_get_status(&s); |
3884 | if (rc < 0) | |
3885 | break; | |
1c6a334e HMH |
3886 | |
3887 | /* Don't go out of emergency fan mode */ | |
eaa7571b HMH |
3888 | if (s != 7) { |
3889 | s &= 0x07; | |
3890 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
3891 | } | |
1c6a334e HMH |
3892 | |
3893 | if (!acpi_ec_write(fan_status_offset, s)) | |
40ca9fdf HMH |
3894 | rc = -EIO; |
3895 | else { | |
d8fd94d9 | 3896 | tp_features.fan_ctrl_status_undef = 0; |
40ca9fdf HMH |
3897 | rc = 0; |
3898 | } | |
1c6a334e HMH |
3899 | break; |
3900 | ||
efa27145 | 3901 | case TPACPI_FAN_WR_ACPI_SFAN: |
40ca9fdf HMH |
3902 | rc = fan_get_status(&s); |
3903 | if (rc < 0) | |
3904 | break; | |
1c6a334e HMH |
3905 | |
3906 | s &= 0x07; | |
3907 | ||
3908 | /* Set fan to at least level 4 */ | |
eaa7571b | 3909 | s |= 4; |
1c6a334e HMH |
3910 | |
3911 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) | |
40ca9fdf HMH |
3912 | rc= -EIO; |
3913 | else | |
3914 | rc = 0; | |
18ad7996 HMH |
3915 | break; |
3916 | ||
3917 | default: | |
40ca9fdf | 3918 | rc = -ENXIO; |
18ad7996 | 3919 | } |
40ca9fdf HMH |
3920 | |
3921 | mutex_unlock(&fan_mutex); | |
3922 | return rc; | |
18ad7996 HMH |
3923 | } |
3924 | ||
3925 | static int fan_set_disable(void) | |
3926 | { | |
40ca9fdf HMH |
3927 | int rc; |
3928 | ||
ecf2a80a HMH |
3929 | if (!fan_control_allowed) |
3930 | return -EPERM; | |
3931 | ||
40ca9fdf HMH |
3932 | rc = mutex_lock_interruptible(&fan_mutex); |
3933 | if (rc < 0) | |
3934 | return rc; | |
3935 | ||
3936 | rc = 0; | |
18ad7996 | 3937 | switch (fan_control_access_mode) { |
efa27145 HMH |
3938 | case TPACPI_FAN_WR_ACPI_FANS: |
3939 | case TPACPI_FAN_WR_TPEC: | |
18ad7996 | 3940 | if (!acpi_ec_write(fan_status_offset, 0x00)) |
40ca9fdf | 3941 | rc = -EIO; |
fe98a52c HMH |
3942 | else { |
3943 | fan_control_desired_level = 0; | |
d8fd94d9 | 3944 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 3945 | } |
18ad7996 HMH |
3946 | break; |
3947 | ||
efa27145 | 3948 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e | 3949 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) |
40ca9fdf | 3950 | rc = -EIO; |
fe98a52c HMH |
3951 | else |
3952 | fan_control_desired_level = 0; | |
1c6a334e HMH |
3953 | break; |
3954 | ||
18ad7996 | 3955 | default: |
40ca9fdf | 3956 | rc = -ENXIO; |
18ad7996 | 3957 | } |
40ca9fdf | 3958 | |
fe98a52c | 3959 | |
40ca9fdf HMH |
3960 | mutex_unlock(&fan_mutex); |
3961 | return rc; | |
56b6aeb0 HMH |
3962 | } |
3963 | ||
3964 | static int fan_set_speed(int speed) | |
3965 | { | |
40ca9fdf HMH |
3966 | int rc; |
3967 | ||
ecf2a80a HMH |
3968 | if (!fan_control_allowed) |
3969 | return -EPERM; | |
3970 | ||
40ca9fdf HMH |
3971 | rc = mutex_lock_interruptible(&fan_mutex); |
3972 | if (rc < 0) | |
3973 | return rc; | |
3974 | ||
3975 | rc = 0; | |
56b6aeb0 | 3976 | switch (fan_control_access_mode) { |
efa27145 | 3977 | case TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
3978 | if (speed >= 0 && speed <= 65535) { |
3979 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
3980 | speed, speed, speed)) | |
40ca9fdf | 3981 | rc = -EIO; |
56b6aeb0 | 3982 | } else |
40ca9fdf | 3983 | rc = -EINVAL; |
56b6aeb0 HMH |
3984 | break; |
3985 | ||
3986 | default: | |
40ca9fdf | 3987 | rc = -ENXIO; |
56b6aeb0 | 3988 | } |
40ca9fdf HMH |
3989 | |
3990 | mutex_unlock(&fan_mutex); | |
3991 | return rc; | |
56b6aeb0 HMH |
3992 | } |
3993 | ||
3994 | static int fan_read(char *p) | |
3995 | { | |
3996 | int len = 0; | |
3997 | int rc; | |
3998 | u8 status; | |
3999 | unsigned int speed = 0; | |
4000 | ||
4001 | switch (fan_status_access_mode) { | |
efa27145 | 4002 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 4003 | /* 570, 600e/x, 770e, 770x */ |
fe98a52c | 4004 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
4005 | return rc; |
4006 | ||
4007 | len += sprintf(p + len, "status:\t\t%s\n" | |
4008 | "level:\t\t%d\n", | |
4009 | (status != 0) ? "enabled" : "disabled", status); | |
4010 | break; | |
4011 | ||
efa27145 | 4012 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 4013 | /* all except 570, 600e/x, 770e, 770x */ |
fe98a52c | 4014 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
4015 | return rc; |
4016 | ||
d8fd94d9 | 4017 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 4018 | if (status != fan_control_initial_status) |
d8fd94d9 | 4019 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
4020 | else |
4021 | /* Return most likely status. In fact, it | |
4022 | * might be the only possible status */ | |
efa27145 | 4023 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
4024 | } |
4025 | ||
4026 | len += sprintf(p + len, "status:\t\t%s\n", | |
4027 | (status != 0) ? "enabled" : "disabled"); | |
4028 | ||
56b6aeb0 HMH |
4029 | if ((rc = fan_get_speed(&speed)) < 0) |
4030 | return rc; | |
4031 | ||
4032 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
4033 | ||
efa27145 | 4034 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
4035 | /* Disengaged mode takes precedence */ |
4036 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 4037 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
4038 | len += sprintf(p + len, "level:\t\tauto\n"); |
4039 | else | |
4040 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
4041 | break; | |
4042 | ||
efa27145 | 4043 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
4044 | default: |
4045 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4046 | } | |
4047 | ||
efa27145 | 4048 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
4049 | len += sprintf(p + len, "commands:\tlevel <level>"); |
4050 | ||
4051 | switch (fan_control_access_mode) { | |
efa27145 | 4052 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4053 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
4054 | break; | |
4055 | ||
4056 | default: | |
4057 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 4058 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
4059 | break; |
4060 | } | |
4061 | } | |
18ad7996 | 4062 | |
efa27145 | 4063 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
4064 | len += sprintf(p + len, "commands:\tenable, disable\n" |
4065 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
4066 | "1-120 (seconds))\n"); | |
1da177e4 | 4067 | |
efa27145 | 4068 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
4069 | len += sprintf(p + len, "commands:\tspeed <speed>" |
4070 | " (<speed> is 0-65535)\n"); | |
4071 | ||
4072 | return len; | |
78f81cc4 BD |
4073 | } |
4074 | ||
18ad7996 HMH |
4075 | static int fan_write_cmd_level(const char *cmd, int *rc) |
4076 | { | |
4077 | int level; | |
4078 | ||
a12095c2 | 4079 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 4080 | level = TP_EC_FAN_AUTO; |
fe98a52c HMH |
4081 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
4082 | (strlencmp(cmd, "level full-speed") == 0)) | |
efa27145 | 4083 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 4084 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
4085 | return 0; |
4086 | ||
fe98a52c | 4087 | if ((*rc = fan_set_level_safe(level)) == -ENXIO) |
18ad7996 HMH |
4088 | printk(IBM_ERR "level command accepted for unsupported " |
4089 | "access mode %d", fan_control_access_mode); | |
4090 | ||
4091 | return 1; | |
4092 | } | |
4093 | ||
4094 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
4095 | { | |
4096 | if (strlencmp(cmd, "enable") != 0) | |
4097 | return 0; | |
4098 | ||
4099 | if ((*rc = fan_set_enable()) == -ENXIO) | |
4100 | printk(IBM_ERR "enable command accepted for unsupported " | |
4101 | "access mode %d", fan_control_access_mode); | |
4102 | ||
4103 | return 1; | |
4104 | } | |
4105 | ||
4106 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
4107 | { | |
4108 | if (strlencmp(cmd, "disable") != 0) | |
4109 | return 0; | |
4110 | ||
4111 | if ((*rc = fan_set_disable()) == -ENXIO) | |
4112 | printk(IBM_ERR "disable command accepted for unsupported " | |
4113 | "access mode %d", fan_control_access_mode); | |
4114 | ||
4115 | return 1; | |
4116 | } | |
4117 | ||
4118 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
4119 | { | |
4120 | int speed; | |
4121 | ||
a8b7a662 HMH |
4122 | /* TODO: |
4123 | * Support speed <low> <medium> <high> ? */ | |
4124 | ||
18ad7996 HMH |
4125 | if (sscanf(cmd, "speed %d", &speed) != 1) |
4126 | return 0; | |
4127 | ||
4128 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
4129 | printk(IBM_ERR "speed command accepted for unsupported " | |
4130 | "access mode %d", fan_control_access_mode); | |
4131 | ||
4132 | return 1; | |
4133 | } | |
4134 | ||
16663a87 HMH |
4135 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
4136 | { | |
4137 | int interval; | |
4138 | ||
4139 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
4140 | return 0; | |
4141 | ||
4142 | if (interval < 0 || interval > 120) | |
4143 | *rc = -EINVAL; | |
4144 | else | |
4145 | fan_watchdog_maxinterval = interval; | |
4146 | ||
4147 | return 1; | |
4148 | } | |
4149 | ||
18ad7996 HMH |
4150 | static int fan_write(char *buf) |
4151 | { | |
4152 | char *cmd; | |
4153 | int rc = 0; | |
4154 | ||
4155 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 4156 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 4157 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 4158 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 4159 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
4160 | fan_write_cmd_disable(cmd, &rc) || |
4161 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 4162 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
4163 | fan_write_cmd_speed(cmd, &rc)) |
4164 | ) | |
4165 | rc = -EINVAL; | |
16663a87 HMH |
4166 | else if (!rc) |
4167 | fan_watchdog_reset(); | |
18ad7996 HMH |
4168 | } |
4169 | ||
4170 | return rc; | |
4171 | } | |
4172 | ||
a5763f22 HMH |
4173 | static struct ibm_struct fan_driver_data = { |
4174 | .name = "fan", | |
4175 | .read = fan_read, | |
4176 | .write = fan_write, | |
4177 | .exit = fan_exit, | |
a5763f22 HMH |
4178 | }; |
4179 | ||
56b6aeb0 HMH |
4180 | /**************************************************************************** |
4181 | **************************************************************************** | |
4182 | * | |
4183 | * Infrastructure | |
4184 | * | |
4185 | **************************************************************************** | |
4186 | ****************************************************************************/ | |
4187 | ||
4188 | /* /proc support */ | |
94954cc6 | 4189 | static struct proc_dir_entry *proc_dir; |
16663a87 | 4190 | |
56b6aeb0 | 4191 | /* Subdriver registry */ |
a5763f22 HMH |
4192 | static LIST_HEAD(tpacpi_all_drivers); |
4193 | ||
1da177e4 | 4194 | |
56b6aeb0 HMH |
4195 | /* |
4196 | * Module and infrastructure proble, init and exit handling | |
4197 | */ | |
1da177e4 | 4198 | |
fe08bc4b | 4199 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 4200 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 4201 | { |
a5763f22 | 4202 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 4203 | |
a5763f22 | 4204 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
4205 | } |
4206 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
4207 | ||
a5763f22 | 4208 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
4209 | { |
4210 | int ret; | |
a5763f22 | 4211 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
4212 | struct proc_dir_entry *entry; |
4213 | ||
a5763f22 HMH |
4214 | BUG_ON(ibm == NULL); |
4215 | ||
4216 | INIT_LIST_HEAD(&ibm->all_drivers); | |
4217 | ||
92641177 | 4218 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
4219 | return 0; |
4220 | ||
fe08bc4b HMH |
4221 | dbg_printk(TPACPI_DBG_INIT, |
4222 | "probing for %s\n", ibm->name); | |
4223 | ||
a5763f22 HMH |
4224 | if (iibm->init) { |
4225 | ret = iibm->init(iibm); | |
5fba344c HMH |
4226 | if (ret > 0) |
4227 | return 0; /* probe failed */ | |
4228 | if (ret) | |
1da177e4 | 4229 | return ret; |
a5763f22 | 4230 | |
92641177 | 4231 | ibm->flags.init_called = 1; |
1da177e4 LT |
4232 | } |
4233 | ||
8d376cd6 HMH |
4234 | if (ibm->acpi) { |
4235 | if (ibm->acpi->hid) { | |
4236 | ret = register_tpacpi_subdriver(ibm); | |
4237 | if (ret) | |
4238 | goto err_out; | |
4239 | } | |
5fba344c | 4240 | |
8d376cd6 HMH |
4241 | if (ibm->acpi->notify) { |
4242 | ret = setup_acpi_notify(ibm); | |
4243 | if (ret == -ENODEV) { | |
4244 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
4245 | ibm->name); | |
4246 | ret = 0; | |
4247 | goto err_out; | |
4248 | } | |
4249 | if (ret < 0) | |
4250 | goto err_out; | |
5fba344c | 4251 | } |
5fba344c HMH |
4252 | } |
4253 | ||
fe08bc4b HMH |
4254 | dbg_printk(TPACPI_DBG_INIT, |
4255 | "%s installed\n", ibm->name); | |
4256 | ||
78f81cc4 BD |
4257 | if (ibm->read) { |
4258 | entry = create_proc_entry(ibm->name, | |
4259 | S_IFREG | S_IRUGO | S_IWUSR, | |
4260 | proc_dir); | |
4261 | if (!entry) { | |
4262 | printk(IBM_ERR "unable to create proc entry %s\n", | |
4263 | ibm->name); | |
5fba344c HMH |
4264 | ret = -ENODEV; |
4265 | goto err_out; | |
78f81cc4 BD |
4266 | } |
4267 | entry->owner = THIS_MODULE; | |
4268 | entry->data = ibm; | |
8d376cd6 | 4269 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 4270 | if (ibm->write) |
8d376cd6 | 4271 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 4272 | ibm->flags.proc_created = 1; |
78f81cc4 | 4273 | } |
1da177e4 | 4274 | |
a5763f22 HMH |
4275 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
4276 | ||
1da177e4 | 4277 | return 0; |
5fba344c HMH |
4278 | |
4279 | err_out: | |
fe08bc4b HMH |
4280 | dbg_printk(TPACPI_DBG_INIT, |
4281 | "%s: at error exit path with result %d\n", | |
4282 | ibm->name, ret); | |
4283 | ||
5fba344c HMH |
4284 | ibm_exit(ibm); |
4285 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
4286 | } |
4287 | ||
4288 | static void ibm_exit(struct ibm_struct *ibm) | |
4289 | { | |
fe08bc4b | 4290 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); |
a5763f22 HMH |
4291 | |
4292 | list_del_init(&ibm->all_drivers); | |
4293 | ||
8d376cd6 | 4294 | if (ibm->flags.acpi_notify_installed) { |
fe08bc4b HMH |
4295 | dbg_printk(TPACPI_DBG_EXIT, |
4296 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8d376cd6 HMH |
4297 | BUG_ON(!ibm->acpi); |
4298 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
4299 | ibm->acpi->type, | |
4300 | dispatch_acpi_notify); | |
4301 | ibm->flags.acpi_notify_installed = 0; | |
4302 | ibm->flags.acpi_notify_installed = 0; | |
5fba344c | 4303 | } |
1da177e4 | 4304 | |
92641177 | 4305 | if (ibm->flags.proc_created) { |
fe08bc4b HMH |
4306 | dbg_printk(TPACPI_DBG_EXIT, |
4307 | "%s: remove_proc_entry\n", ibm->name); | |
1da177e4 | 4308 | remove_proc_entry(ibm->name, proc_dir); |
92641177 | 4309 | ibm->flags.proc_created = 0; |
5fba344c | 4310 | } |
1da177e4 | 4311 | |
8d376cd6 | 4312 | if (ibm->flags.acpi_driver_registered) { |
fe08bc4b HMH |
4313 | dbg_printk(TPACPI_DBG_EXIT, |
4314 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8d376cd6 HMH |
4315 | BUG_ON(!ibm->acpi); |
4316 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
4317 | kfree(ibm->acpi->driver); | |
4318 | ibm->acpi->driver = NULL; | |
4319 | ibm->flags.acpi_driver_registered = 0; | |
5fba344c HMH |
4320 | } |
4321 | ||
92641177 | 4322 | if (ibm->flags.init_called && ibm->exit) { |
5fba344c | 4323 | ibm->exit(); |
92641177 | 4324 | ibm->flags.init_called = 0; |
1da177e4 | 4325 | } |
a5763f22 HMH |
4326 | |
4327 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
1da177e4 LT |
4328 | } |
4329 | ||
56b6aeb0 HMH |
4330 | /* Probing */ |
4331 | ||
d5a2f2f1 | 4332 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 4333 | { |
56b6aeb0 HMH |
4334 | struct dmi_device *dev = NULL; |
4335 | char ec_fw_string[18]; | |
1da177e4 | 4336 | |
d5a2f2f1 HMH |
4337 | if (!tp) |
4338 | return; | |
4339 | ||
4340 | memset(tp, 0, sizeof(*tp)); | |
4341 | ||
4342 | if (dmi_name_in_vendors("IBM")) | |
4343 | tp->vendor = PCI_VENDOR_ID_IBM; | |
4344 | else if (dmi_name_in_vendors("LENOVO")) | |
4345 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
4346 | else | |
4347 | return; | |
4348 | ||
4349 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
4350 | GFP_KERNEL); | |
4351 | if (!tp->bios_version_str) | |
4352 | return; | |
4353 | tp->bios_model = tp->bios_version_str[0] | |
4354 | | (tp->bios_version_str[1] << 8); | |
4355 | ||
56b6aeb0 HMH |
4356 | /* |
4357 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
4358 | * X32 or newer, all Z series; Some models must have an | |
4359 | * up-to-date BIOS or they will not be detected. | |
4360 | * | |
4361 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
4362 | */ | |
4363 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
4364 | if (sscanf(dev->name, | |
4365 | "IBM ThinkPad Embedded Controller -[%17c", | |
4366 | ec_fw_string) == 1) { | |
4367 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
4368 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
4369 | |
4370 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
4371 | tp->ec_model = ec_fw_string[0] | |
4372 | | (ec_fw_string[1] << 8); | |
4373 | break; | |
78f81cc4 | 4374 | } |
1da177e4 | 4375 | } |
d5a2f2f1 HMH |
4376 | |
4377 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
4378 | GFP_KERNEL); | |
4379 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
4380 | kfree(tp->model_str); | |
4381 | tp->model_str = NULL; | |
4382 | } | |
1da177e4 LT |
4383 | } |
4384 | ||
5fba344c HMH |
4385 | static int __init probe_for_thinkpad(void) |
4386 | { | |
4387 | int is_thinkpad; | |
4388 | ||
4389 | if (acpi_disabled) | |
4390 | return -ENODEV; | |
4391 | ||
4392 | /* | |
4393 | * Non-ancient models have better DMI tagging, but very old models | |
4394 | * don't. | |
4395 | */ | |
d5a2f2f1 | 4396 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
4397 | |
4398 | /* ec is required because many other handles are relative to it */ | |
8d376cd6 | 4399 | IBM_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
4400 | if (!ec_handle) { |
4401 | if (is_thinkpad) | |
4402 | printk(IBM_ERR | |
4403 | "Not yet supported ThinkPad detected!\n"); | |
4404 | return -ENODEV; | |
4405 | } | |
4406 | ||
0dcef77c HMH |
4407 | /* |
4408 | * Risks a regression on very old machines, but reduces potential | |
4409 | * false positives a damn great deal | |
4410 | */ | |
4411 | if (!is_thinkpad) | |
d5a2f2f1 | 4412 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
4413 | |
4414 | if (!is_thinkpad && !force_load) | |
4415 | return -ENODEV; | |
4416 | ||
5fba344c HMH |
4417 | return 0; |
4418 | } | |
4419 | ||
4420 | ||
56b6aeb0 | 4421 | /* Module init, exit, parameters */ |
1da177e4 | 4422 | |
a5763f22 HMH |
4423 | static struct ibm_init_struct ibms_init[] __initdata = { |
4424 | { | |
4425 | .init = thinkpad_acpi_driver_init, | |
4426 | .data = &thinkpad_acpi_driver_data, | |
4427 | }, | |
4428 | { | |
4429 | .init = hotkey_init, | |
4430 | .data = &hotkey_driver_data, | |
4431 | }, | |
4432 | { | |
4433 | .init = bluetooth_init, | |
4434 | .data = &bluetooth_driver_data, | |
4435 | }, | |
4436 | { | |
4437 | .init = wan_init, | |
4438 | .data = &wan_driver_data, | |
4439 | }, | |
4440 | { | |
4441 | .init = video_init, | |
4442 | .data = &video_driver_data, | |
4443 | }, | |
4444 | { | |
4445 | .init = light_init, | |
4446 | .data = &light_driver_data, | |
4447 | }, | |
4448 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
4449 | { | |
4450 | .init = dock_init, | |
4451 | .data = &dock_driver_data[0], | |
4452 | }, | |
4453 | { | |
d94a7f16 | 4454 | .init = dock_init2, |
a5763f22 HMH |
4455 | .data = &dock_driver_data[1], |
4456 | }, | |
4457 | #endif | |
4458 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
4459 | { | |
4460 | .init = bay_init, | |
4461 | .data = &bay_driver_data, | |
4462 | }, | |
4463 | #endif | |
4464 | { | |
4465 | .init = cmos_init, | |
4466 | .data = &cmos_driver_data, | |
4467 | }, | |
4468 | { | |
4469 | .init = led_init, | |
4470 | .data = &led_driver_data, | |
4471 | }, | |
4472 | { | |
4473 | .init = beep_init, | |
4474 | .data = &beep_driver_data, | |
4475 | }, | |
4476 | { | |
4477 | .init = thermal_init, | |
4478 | .data = &thermal_driver_data, | |
4479 | }, | |
4480 | { | |
4481 | .data = &ecdump_driver_data, | |
4482 | }, | |
4483 | { | |
4484 | .init = brightness_init, | |
4485 | .data = &brightness_driver_data, | |
4486 | }, | |
4487 | { | |
4488 | .data = &volume_driver_data, | |
4489 | }, | |
4490 | { | |
4491 | .init = fan_init, | |
4492 | .data = &fan_driver_data, | |
4493 | }, | |
4494 | }; | |
4495 | ||
3945ac36 | 4496 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
4497 | { |
4498 | unsigned int i; | |
a5763f22 | 4499 | struct ibm_struct *ibm; |
1da177e4 | 4500 | |
a5763f22 HMH |
4501 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
4502 | ibm = ibms_init[i].data; | |
4503 | BUG_ON(ibm == NULL); | |
4504 | ||
4505 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
4506 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 4507 | return -ENOSPC; |
a5763f22 HMH |
4508 | strcpy(ibms_init[i].param, val); |
4509 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
4510 | return 0; |
4511 | } | |
a5763f22 | 4512 | } |
1da177e4 | 4513 | |
1da177e4 LT |
4514 | return -EINVAL; |
4515 | } | |
4516 | ||
56b6aeb0 HMH |
4517 | static int experimental; |
4518 | module_param(experimental, int, 0); | |
4519 | ||
132ce091 HMH |
4520 | static u32 dbg_level; |
4521 | module_param_named(debug, dbg_level, uint, 0); | |
4522 | ||
0dcef77c | 4523 | static int force_load; |
86cc9445 | 4524 | module_param(force_load, bool, 0); |
0dcef77c | 4525 | |
ecf2a80a | 4526 | static int fan_control_allowed; |
86cc9445 | 4527 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
ecf2a80a | 4528 | |
24d3b774 HMH |
4529 | static int brightness_mode; |
4530 | module_param_named(brightness_mode, brightness_mode, int, 0); | |
4531 | ||
1da177e4 LT |
4532 | #define IBM_PARAM(feature) \ |
4533 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
4534 | ||
78f81cc4 BD |
4535 | IBM_PARAM(hotkey); |
4536 | IBM_PARAM(bluetooth); | |
4537 | IBM_PARAM(video); | |
4538 | IBM_PARAM(light); | |
85998248 | 4539 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
78f81cc4 | 4540 | IBM_PARAM(dock); |
63e5f248 | 4541 | #endif |
85998248 | 4542 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 | 4543 | IBM_PARAM(bay); |
85998248 | 4544 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
78f81cc4 BD |
4545 | IBM_PARAM(cmos); |
4546 | IBM_PARAM(led); | |
4547 | IBM_PARAM(beep); | |
4548 | IBM_PARAM(ecdump); | |
4549 | IBM_PARAM(brightness); | |
4550 | IBM_PARAM(volume); | |
4551 | IBM_PARAM(fan); | |
4552 | ||
1def7115 | 4553 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
4554 | { |
4555 | int ret, i; | |
4556 | ||
54ae1501 | 4557 | /* Driver-level probe */ |
d5a2f2f1 HMH |
4558 | |
4559 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 4560 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
4561 | if (ret) { |
4562 | thinkpad_acpi_module_exit(); | |
5fba344c | 4563 | return ret; |
d5a2f2f1 | 4564 | } |
1da177e4 | 4565 | |
54ae1501 | 4566 | /* Driver initialization */ |
d5a2f2f1 | 4567 | |
8d376cd6 HMH |
4568 | IBM_ACPIHANDLE_INIT(ecrd); |
4569 | IBM_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 4570 | |
8d376cd6 | 4571 | proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir); |
1da177e4 | 4572 | if (!proc_dir) { |
8d376cd6 | 4573 | printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR); |
1def7115 | 4574 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
4575 | return -ENODEV; |
4576 | } | |
4577 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 4578 | |
54ae1501 HMH |
4579 | ret = platform_driver_register(&tpacpi_pdriver); |
4580 | if (ret) { | |
4581 | printk(IBM_ERR "unable to register platform driver\n"); | |
4582 | thinkpad_acpi_module_exit(); | |
4583 | return ret; | |
4584 | } | |
176750d6 HMH |
4585 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
4586 | if (ret) { | |
4587 | printk(IBM_ERR "unable to create sysfs driver attributes\n"); | |
4588 | thinkpad_acpi_module_exit(); | |
4589 | return ret; | |
4590 | } | |
4591 | ||
54ae1501 HMH |
4592 | |
4593 | /* Device initialization */ | |
4594 | tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1, | |
4595 | NULL, 0); | |
4596 | if (IS_ERR(tpacpi_pdev)) { | |
4597 | ret = PTR_ERR(tpacpi_pdev); | |
4598 | tpacpi_pdev = NULL; | |
4599 | printk(IBM_ERR "unable to register platform device\n"); | |
4600 | thinkpad_acpi_module_exit(); | |
4601 | return ret; | |
4602 | } | |
4603 | tpacpi_hwmon = hwmon_device_register(&tpacpi_pdev->dev); | |
4604 | if (IS_ERR(tpacpi_hwmon)) { | |
4605 | ret = PTR_ERR(tpacpi_hwmon); | |
4606 | tpacpi_hwmon = NULL; | |
4607 | printk(IBM_ERR "unable to register hwmon device\n"); | |
4608 | thinkpad_acpi_module_exit(); | |
4609 | return ret; | |
4610 | } | |
7f5d1cd6 HMH |
4611 | tpacpi_inputdev = input_allocate_device(); |
4612 | if (!tpacpi_inputdev) { | |
4613 | printk(IBM_ERR "unable to allocate input device\n"); | |
4614 | thinkpad_acpi_module_exit(); | |
4615 | return -ENOMEM; | |
4616 | } else { | |
4617 | /* Prepare input device, but don't register */ | |
4618 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
4619 | tpacpi_inputdev->phys = IBM_DRVR_NAME "/input0"; | |
4620 | tpacpi_inputdev->id.bustype = BUS_HOST; | |
4621 | tpacpi_inputdev->id.vendor = TPACPI_HKEY_INPUT_VENDOR; | |
4622 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; | |
4623 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
4624 | } | |
a5763f22 HMH |
4625 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
4626 | ret = ibm_init(&ibms_init[i]); | |
4627 | if (ret >= 0 && *ibms_init[i].param) | |
4628 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 4629 | if (ret < 0) { |
1def7115 | 4630 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
4631 | return ret; |
4632 | } | |
4633 | } | |
7f5d1cd6 HMH |
4634 | ret = input_register_device(tpacpi_inputdev); |
4635 | if (ret < 0) { | |
4636 | printk(IBM_ERR "unable to register input device\n"); | |
4637 | thinkpad_acpi_module_exit(); | |
4638 | return ret; | |
4639 | } else { | |
4640 | tp_features.input_device_registered = 1; | |
4641 | } | |
1da177e4 LT |
4642 | |
4643 | return 0; | |
4644 | } | |
4645 | ||
1def7115 | 4646 | static void thinkpad_acpi_module_exit(void) |
56b6aeb0 | 4647 | { |
a5763f22 HMH |
4648 | struct ibm_struct *ibm, *itmp; |
4649 | ||
4650 | list_for_each_entry_safe_reverse(ibm, itmp, | |
4651 | &tpacpi_all_drivers, | |
4652 | all_drivers) { | |
4653 | ibm_exit(ibm); | |
4654 | } | |
56b6aeb0 | 4655 | |
a5763f22 | 4656 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); |
56b6aeb0 | 4657 | |
7f5d1cd6 HMH |
4658 | if (tpacpi_inputdev) { |
4659 | if (tp_features.input_device_registered) | |
4660 | input_unregister_device(tpacpi_inputdev); | |
4661 | else | |
4662 | input_free_device(tpacpi_inputdev); | |
4663 | } | |
4664 | ||
54ae1501 HMH |
4665 | if (tpacpi_hwmon) |
4666 | hwmon_device_unregister(tpacpi_hwmon); | |
4667 | ||
4668 | if (tpacpi_pdev) | |
4669 | platform_device_unregister(tpacpi_pdev); | |
4670 | ||
176750d6 | 4671 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); |
54ae1501 HMH |
4672 | platform_driver_unregister(&tpacpi_pdriver); |
4673 | ||
56b6aeb0 | 4674 | if (proc_dir) |
8d376cd6 | 4675 | remove_proc_entry(IBM_PROC_DIR, acpi_root_dir); |
56b6aeb0 | 4676 | |
d5a2f2f1 HMH |
4677 | kfree(thinkpad_id.bios_version_str); |
4678 | kfree(thinkpad_id.ec_version_str); | |
4679 | kfree(thinkpad_id.model_str); | |
56b6aeb0 HMH |
4680 | } |
4681 | ||
1def7115 HMH |
4682 | module_init(thinkpad_acpi_module_init); |
4683 | module_exit(thinkpad_acpi_module_exit); |