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Commit | Line | Data |
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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" |
94b08713 | 25 | #define TPACPI_SYSFS_VERSION 0x000200 |
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 HMH |
521 | |
522 | static struct platform_driver tpacpi_pdriver = { | |
523 | .driver = { | |
524 | .name = IBM_DRVR_NAME, | |
525 | .owner = THIS_MODULE, | |
526 | }, | |
527 | }; | |
528 | ||
529 | ||
176750d6 HMH |
530 | /************************************************************************* |
531 | * thinkpad-acpi driver attributes | |
532 | */ | |
533 | ||
534 | /* interface_version --------------------------------------------------- */ | |
535 | static ssize_t tpacpi_driver_interface_version_show( | |
536 | struct device_driver *drv, | |
537 | char *buf) | |
538 | { | |
539 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); | |
540 | } | |
541 | ||
542 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
543 | tpacpi_driver_interface_version_show, NULL); | |
544 | ||
545 | /* debug_level --------------------------------------------------------- */ | |
546 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
547 | char *buf) | |
548 | { | |
549 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
550 | } | |
551 | ||
552 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
553 | const char *buf, size_t count) | |
554 | { | |
555 | unsigned long t; | |
176750d6 | 556 | |
7252374a | 557 | if (parse_strtoul(buf, 0xffff, &t)) |
176750d6 HMH |
558 | return -EINVAL; |
559 | ||
560 | dbg_level = t; | |
561 | ||
562 | return count; | |
563 | } | |
564 | ||
565 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
566 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
567 | ||
568 | /* version ------------------------------------------------------------- */ | |
569 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
570 | char *buf) | |
571 | { | |
572 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", IBM_DESC, IBM_VERSION); | |
573 | } | |
574 | ||
575 | static DRIVER_ATTR(version, S_IRUGO, | |
576 | tpacpi_driver_version_show, NULL); | |
577 | ||
578 | /* --------------------------------------------------------------------- */ | |
579 | ||
580 | static struct driver_attribute* tpacpi_driver_attributes[] = { | |
581 | &driver_attr_debug_level, &driver_attr_version, | |
582 | &driver_attr_interface_version, | |
583 | }; | |
584 | ||
585 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
586 | { | |
587 | int i, res; | |
588 | ||
589 | i = 0; | |
590 | res = 0; | |
591 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
592 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
593 | i++; | |
594 | } | |
595 | ||
596 | return res; | |
597 | } | |
598 | ||
599 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
600 | { | |
601 | int i; | |
602 | ||
603 | for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) | |
604 | driver_remove_file(drv, tpacpi_driver_attributes[i]); | |
605 | } | |
606 | ||
7252374a HMH |
607 | /************************************************************************* |
608 | * sysfs support helpers | |
609 | */ | |
610 | ||
611 | struct attribute_set_obj { | |
612 | struct attribute_set s; | |
613 | struct attribute *a; | |
614 | } __attribute__((packed)); | |
615 | ||
616 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
617 | const char* name) | |
618 | { | |
619 | struct attribute_set_obj *sobj; | |
620 | ||
621 | if (max_members == 0) | |
622 | return NULL; | |
623 | ||
624 | /* Allocates space for implicit NULL at the end too */ | |
625 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
626 | max_members * sizeof(struct attribute *), | |
627 | GFP_KERNEL); | |
628 | if (!sobj) | |
629 | return NULL; | |
630 | sobj->s.max_members = max_members; | |
631 | sobj->s.group.attrs = &sobj->a; | |
632 | sobj->s.group.name = name; | |
633 | ||
634 | return &sobj->s; | |
635 | } | |
636 | ||
637 | /* not multi-threaded safe, use it in a single thread per set */ | |
638 | static int add_to_attr_set(struct attribute_set* s, struct attribute *attr) | |
639 | { | |
640 | if (!s || !attr) | |
641 | return -EINVAL; | |
642 | ||
643 | if (s->members >= s->max_members) | |
644 | return -ENOMEM; | |
645 | ||
646 | s->group.attrs[s->members] = attr; | |
647 | s->members++; | |
648 | ||
649 | return 0; | |
650 | } | |
651 | ||
652 | static int add_many_to_attr_set(struct attribute_set* s, | |
653 | struct attribute **attr, | |
654 | unsigned int count) | |
655 | { | |
656 | int i, res; | |
657 | ||
658 | for (i = 0; i < count; i++) { | |
659 | res = add_to_attr_set(s, attr[i]); | |
660 | if (res) | |
661 | return res; | |
662 | } | |
663 | ||
664 | return 0; | |
665 | } | |
666 | ||
667 | static void delete_attr_set(struct attribute_set* s, struct kobject *kobj) | |
668 | { | |
669 | sysfs_remove_group(kobj, &s->group); | |
670 | destroy_attr_set(s); | |
671 | } | |
672 | ||
673 | static int parse_strtoul(const char *buf, | |
674 | unsigned long max, unsigned long *value) | |
675 | { | |
676 | char *endp; | |
677 | ||
678 | *value = simple_strtoul(buf, &endp, 0); | |
679 | while (*endp && isspace(*endp)) | |
680 | endp++; | |
681 | if (*endp || *value > max) | |
682 | return -EINVAL; | |
683 | ||
684 | return 0; | |
685 | } | |
686 | ||
56b6aeb0 HMH |
687 | /**************************************************************************** |
688 | **************************************************************************** | |
689 | * | |
690 | * Subdrivers | |
691 | * | |
692 | **************************************************************************** | |
693 | ****************************************************************************/ | |
694 | ||
695 | /************************************************************************* | |
142cfc90 | 696 | * thinkpad-acpi init subdriver |
56b6aeb0 HMH |
697 | */ |
698 | ||
a5763f22 | 699 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
700 | { |
701 | printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); | |
702 | printk(IBM_INFO "%s\n", IBM_URL); | |
703 | ||
3945ac36 HMH |
704 | if (ibm_thinkpad_ec_found) |
705 | printk(IBM_INFO "ThinkPad EC firmware %s\n", | |
706 | ibm_thinkpad_ec_found); | |
707 | ||
1da177e4 LT |
708 | return 0; |
709 | } | |
710 | ||
643f12db | 711 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
712 | { |
713 | int len = 0; | |
714 | ||
715 | len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); | |
716 | len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); | |
717 | ||
718 | return len; | |
719 | } | |
720 | ||
a5763f22 HMH |
721 | static struct ibm_struct thinkpad_acpi_driver_data = { |
722 | .name = "driver", | |
723 | .read = thinkpad_acpi_driver_read, | |
724 | }; | |
725 | ||
56b6aeb0 HMH |
726 | /************************************************************************* |
727 | * Hotkey subdriver | |
728 | */ | |
729 | ||
78f81cc4 | 730 | static int hotkey_orig_status; |
ae92bd17 | 731 | static u32 hotkey_orig_mask; |
9b010de5 HMH |
732 | static u32 hotkey_all_mask; |
733 | static u32 hotkey_reserved_mask = 0x00778000; | |
78f81cc4 | 734 | |
94954cc6 | 735 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 736 | |
74941a69 HMH |
737 | static int hotkey_get_wlsw(int *status) |
738 | { | |
739 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
740 | return -EIO; | |
741 | return 0; | |
742 | } | |
743 | ||
a0416420 HMH |
744 | /* sysfs hotkey enable ------------------------------------------------- */ |
745 | static ssize_t hotkey_enable_show(struct device *dev, | |
746 | struct device_attribute *attr, | |
747 | char *buf) | |
748 | { | |
ae92bd17 HMH |
749 | int res, status; |
750 | u32 mask; | |
a0416420 HMH |
751 | |
752 | res = hotkey_get(&status, &mask); | |
753 | if (res) | |
754 | return res; | |
755 | ||
756 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
757 | } | |
758 | ||
759 | static ssize_t hotkey_enable_store(struct device *dev, | |
760 | struct device_attribute *attr, | |
761 | const char *buf, size_t count) | |
762 | { | |
763 | unsigned long t; | |
ae92bd17 HMH |
764 | int res, status; |
765 | u32 mask; | |
a0416420 HMH |
766 | |
767 | if (parse_strtoul(buf, 1, &t)) | |
768 | return -EINVAL; | |
769 | ||
770 | res = hotkey_get(&status, &mask); | |
771 | if (!res) | |
772 | res = hotkey_set(t, mask); | |
773 | ||
774 | return (res) ? res : count; | |
775 | } | |
776 | ||
777 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 778 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
779 | hotkey_enable_show, hotkey_enable_store); |
780 | ||
781 | /* sysfs hotkey mask --------------------------------------------------- */ | |
782 | static ssize_t hotkey_mask_show(struct device *dev, | |
783 | struct device_attribute *attr, | |
784 | char *buf) | |
785 | { | |
ae92bd17 HMH |
786 | int res, status; |
787 | u32 mask; | |
a0416420 HMH |
788 | |
789 | res = hotkey_get(&status, &mask); | |
790 | if (res) | |
791 | return res; | |
792 | ||
ae92bd17 | 793 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", mask); |
a0416420 HMH |
794 | } |
795 | ||
796 | static ssize_t hotkey_mask_store(struct device *dev, | |
797 | struct device_attribute *attr, | |
798 | const char *buf, size_t count) | |
799 | { | |
800 | unsigned long t; | |
ae92bd17 HMH |
801 | int res, status; |
802 | u32 mask; | |
a0416420 | 803 | |
ae92bd17 | 804 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
805 | return -EINVAL; |
806 | ||
807 | res = hotkey_get(&status, &mask); | |
808 | if (!res) | |
809 | hotkey_set(status, t); | |
810 | ||
811 | return (res) ? res : count; | |
812 | } | |
813 | ||
814 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 815 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
816 | hotkey_mask_show, hotkey_mask_store); |
817 | ||
818 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
819 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
820 | struct device_attribute *attr, | |
821 | char *buf) | |
822 | { | |
823 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
824 | } | |
825 | ||
826 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 827 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
828 | |
829 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
830 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
831 | struct device_attribute *attr, | |
832 | char *buf) | |
833 | { | |
ae92bd17 | 834 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
835 | } |
836 | ||
837 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 838 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 839 | |
9b010de5 HMH |
840 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
841 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
842 | struct device_attribute *attr, | |
843 | char *buf) | |
844 | { | |
845 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_all_mask); | |
846 | } | |
847 | ||
848 | static struct device_attribute dev_attr_hotkey_all_mask = | |
849 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
850 | ||
851 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
852 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
853 | struct device_attribute *attr, | |
854 | char *buf) | |
855 | { | |
856 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
857 | hotkey_all_mask & ~hotkey_reserved_mask); | |
858 | } | |
859 | ||
860 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
861 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
862 | hotkey_recommended_mask_show, NULL); | |
863 | ||
74941a69 HMH |
864 | /* sysfs hotkey radio_sw ----------------------------------------------- */ |
865 | static ssize_t hotkey_radio_sw_show(struct device *dev, | |
866 | struct device_attribute *attr, | |
867 | char *buf) | |
868 | { | |
869 | int res, s; | |
870 | res = hotkey_get_wlsw(&s); | |
871 | if (res < 0) | |
872 | return res; | |
873 | ||
874 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
875 | } | |
876 | ||
877 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
878 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
879 | ||
a0416420 HMH |
880 | /* --------------------------------------------------------------------- */ |
881 | ||
882 | static struct attribute *hotkey_mask_attributes[] = { | |
883 | &dev_attr_hotkey_mask.attr, | |
884 | &dev_attr_hotkey_bios_enabled.attr, | |
885 | &dev_attr_hotkey_bios_mask.attr, | |
9b010de5 HMH |
886 | &dev_attr_hotkey_all_mask.attr, |
887 | &dev_attr_hotkey_recommended_mask.attr, | |
a0416420 HMH |
888 | }; |
889 | ||
a5763f22 | 890 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 891 | { |
b86c4722 | 892 | int res; |
74941a69 | 893 | int status; |
b86c4722 | 894 | |
fe08bc4b HMH |
895 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
896 | ||
8d376cd6 | 897 | IBM_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 898 | mutex_init(&hotkey_mutex); |
5fba344c | 899 | |
56b6aeb0 | 900 | /* hotkey not supported on 570 */ |
d8fd94d9 | 901 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 902 | |
fe08bc4b | 903 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 904 | str_supported(tp_features.hotkey)); |
fe08bc4b | 905 | |
d8fd94d9 | 906 | if (tp_features.hotkey) { |
74941a69 | 907 | hotkey_dev_attributes = create_attr_set(7, NULL); |
a0416420 HMH |
908 | if (!hotkey_dev_attributes) |
909 | return -ENOMEM; | |
910 | res = add_to_attr_set(hotkey_dev_attributes, | |
911 | &dev_attr_hotkey_enable.attr); | |
912 | if (res) | |
913 | return res; | |
914 | ||
56b6aeb0 HMH |
915 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
916 | A30, R30, R31, T20-22, X20-21, X22-24 */ | |
d8fd94d9 HMH |
917 | tp_features.hotkey_mask = |
918 | acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); | |
56b6aeb0 | 919 | |
fe08bc4b | 920 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 921 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 922 | |
9b010de5 HMH |
923 | if (tp_features.hotkey_mask) { |
924 | /* MHKA available in A31, R40, R40e, T4x, X31, and later */ | |
925 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
926 | "MHKA", "qd")) | |
927 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
928 | } | |
929 | ||
b86c4722 | 930 | res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask); |
a0416420 HMH |
931 | if (!res && tp_features.hotkey_mask) { |
932 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
933 | hotkey_mask_attributes, | |
934 | ARRAY_SIZE(hotkey_mask_attributes)); | |
935 | } | |
74941a69 HMH |
936 | |
937 | /* Not all thinkpads have a hardware radio switch */ | |
938 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
939 | tp_features.hotkey_wlsw = 1; | |
940 | printk(IBM_INFO | |
941 | "radio switch found; radios are %s\n", | |
942 | enabled(status, 0)); | |
943 | res = add_to_attr_set(hotkey_dev_attributes, | |
944 | &dev_attr_hotkey_radio_sw.attr); | |
945 | } | |
946 | ||
a0416420 HMH |
947 | if (!res) |
948 | res = register_attr_set_with_sysfs( | |
949 | hotkey_dev_attributes, | |
950 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
951 | if (res) |
952 | return res; | |
56b6aeb0 HMH |
953 | } |
954 | ||
d8fd94d9 | 955 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
956 | } |
957 | ||
958 | static void hotkey_exit(void) | |
959 | { | |
b86c4722 HMH |
960 | int res; |
961 | ||
d8fd94d9 | 962 | if (tp_features.hotkey) { |
fe08bc4b | 963 | dbg_printk(TPACPI_DBG_EXIT, "restoring original hotkey mask\n"); |
b86c4722 HMH |
964 | res = hotkey_set(hotkey_orig_status, hotkey_orig_mask); |
965 | if (res) | |
966 | printk(IBM_ERR "failed to restore hotkey to BIOS defaults\n"); | |
5fba344c | 967 | } |
a0416420 HMH |
968 | |
969 | if (hotkey_dev_attributes) { | |
970 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
971 | hotkey_dev_attributes = NULL; | |
972 | } | |
56b6aeb0 HMH |
973 | } |
974 | ||
975 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
976 | { | |
977 | int hkey; | |
978 | ||
ae92bd17 | 979 | if (event == 0x80 && acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { |
8d376cd6 | 980 | acpi_bus_generate_event(ibm->acpi->device, event, hkey); |
ae92bd17 HMH |
981 | } else { |
982 | printk(IBM_ERR "unknown hotkey notification event %d\n", event); | |
8d376cd6 | 983 | acpi_bus_generate_event(ibm->acpi->device, event, 0); |
56b6aeb0 HMH |
984 | } |
985 | } | |
986 | ||
40ca9fdf HMH |
987 | /* |
988 | * Call with hotkey_mutex held | |
989 | */ | |
ae92bd17 | 990 | static int hotkey_get(int *status, u32 *mask) |
1da177e4 LT |
991 | { |
992 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
b86c4722 | 993 | return -EIO; |
78f81cc4 | 994 | |
d8fd94d9 | 995 | if (tp_features.hotkey_mask) |
78f81cc4 | 996 | if (!acpi_evalf(hkey_handle, mask, "DHKN", "d")) |
b86c4722 | 997 | return -EIO; |
78f81cc4 | 998 | |
b86c4722 | 999 | return 0; |
1da177e4 LT |
1000 | } |
1001 | ||
40ca9fdf HMH |
1002 | /* |
1003 | * Call with hotkey_mutex held | |
1004 | */ | |
ae92bd17 | 1005 | static int hotkey_set(int status, u32 mask) |
1da177e4 LT |
1006 | { |
1007 | int i; | |
1008 | ||
1009 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
b86c4722 | 1010 | return -EIO; |
1da177e4 | 1011 | |
d8fd94d9 | 1012 | if (tp_features.hotkey_mask) |
78f81cc4 BD |
1013 | for (i = 0; i < 32; i++) { |
1014 | int bit = ((1 << i) & mask) != 0; | |
1015 | if (!acpi_evalf(hkey_handle, | |
1016 | NULL, "MHKM", "vdd", i + 1, bit)) | |
b86c4722 | 1017 | return -EIO; |
78f81cc4 | 1018 | } |
1da177e4 | 1019 | |
b86c4722 | 1020 | return 0; |
1da177e4 LT |
1021 | } |
1022 | ||
a0416420 | 1023 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 1024 | static int hotkey_read(char *p) |
1da177e4 | 1025 | { |
ae92bd17 HMH |
1026 | int res, status; |
1027 | u32 mask; | |
1da177e4 LT |
1028 | int len = 0; |
1029 | ||
d8fd94d9 | 1030 | if (!tp_features.hotkey) { |
78f81cc4 BD |
1031 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1032 | return len; | |
1033 | } | |
1034 | ||
40ca9fdf HMH |
1035 | res = mutex_lock_interruptible(&hotkey_mutex); |
1036 | if (res < 0) | |
1037 | return res; | |
b86c4722 | 1038 | res = hotkey_get(&status, &mask); |
40ca9fdf | 1039 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
1040 | if (res) |
1041 | return res; | |
1da177e4 LT |
1042 | |
1043 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 1044 | if (tp_features.hotkey_mask) { |
ae92bd17 | 1045 | len += sprintf(p + len, "mask:\t\t0x%08x\n", mask); |
1da177e4 LT |
1046 | len += sprintf(p + len, |
1047 | "commands:\tenable, disable, reset, <mask>\n"); | |
1048 | } else { | |
1049 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
1050 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
1051 | } | |
1052 | ||
1053 | return len; | |
1054 | } | |
1055 | ||
78f81cc4 | 1056 | static int hotkey_write(char *buf) |
1da177e4 | 1057 | { |
ae92bd17 HMH |
1058 | int res, status; |
1059 | u32 mask; | |
1da177e4 LT |
1060 | char *cmd; |
1061 | int do_cmd = 0; | |
1062 | ||
d8fd94d9 | 1063 | if (!tp_features.hotkey) |
1da177e4 LT |
1064 | return -ENODEV; |
1065 | ||
40ca9fdf HMH |
1066 | res = mutex_lock_interruptible(&hotkey_mutex); |
1067 | if (res < 0) | |
1068 | return res; | |
1069 | ||
b86c4722 HMH |
1070 | res = hotkey_get(&status, &mask); |
1071 | if (res) | |
40ca9fdf | 1072 | goto errexit; |
78f81cc4 | 1073 | |
40ca9fdf | 1074 | res = 0; |
1da177e4 LT |
1075 | while ((cmd = next_cmd(&buf))) { |
1076 | if (strlencmp(cmd, "enable") == 0) { | |
1077 | status = 1; | |
1078 | } else if (strlencmp(cmd, "disable") == 0) { | |
1079 | status = 0; | |
1080 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
1081 | status = hotkey_orig_status; |
1082 | mask = hotkey_orig_mask; | |
1da177e4 LT |
1083 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
1084 | /* mask set */ | |
1085 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
1086 | /* mask set */ | |
40ca9fdf HMH |
1087 | } else { |
1088 | res = -EINVAL; | |
1089 | goto errexit; | |
1090 | } | |
1da177e4 LT |
1091 | do_cmd = 1; |
1092 | } | |
1093 | ||
40ca9fdf | 1094 | if (do_cmd) |
b86c4722 | 1095 | res = hotkey_set(status, mask); |
1da177e4 | 1096 | |
40ca9fdf HMH |
1097 | errexit: |
1098 | mutex_unlock(&hotkey_mutex); | |
1099 | return res; | |
78f81cc4 | 1100 | } |
1da177e4 | 1101 | |
8d376cd6 HMH |
1102 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1103 | .hid = IBM_HKEY_HID, | |
1104 | .notify = hotkey_notify, | |
1105 | .handle = &hkey_handle, | |
1106 | .type = ACPI_DEVICE_NOTIFY, | |
1107 | }; | |
1108 | ||
a5763f22 HMH |
1109 | static struct ibm_struct hotkey_driver_data = { |
1110 | .name = "hotkey", | |
a5763f22 HMH |
1111 | .read = hotkey_read, |
1112 | .write = hotkey_write, | |
1113 | .exit = hotkey_exit, | |
8d376cd6 | 1114 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
1115 | }; |
1116 | ||
56b6aeb0 HMH |
1117 | /************************************************************************* |
1118 | * Bluetooth subdriver | |
1119 | */ | |
1da177e4 | 1120 | |
d3a6ade4 HMH |
1121 | /* sysfs bluetooth enable ---------------------------------------------- */ |
1122 | static ssize_t bluetooth_enable_show(struct device *dev, | |
1123 | struct device_attribute *attr, | |
1124 | char *buf) | |
1125 | { | |
1126 | int status; | |
1127 | ||
1128 | status = bluetooth_get_radiosw(); | |
1129 | if (status < 0) | |
1130 | return status; | |
1131 | ||
1132 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
1133 | } | |
1134 | ||
1135 | static ssize_t bluetooth_enable_store(struct device *dev, | |
1136 | struct device_attribute *attr, | |
1137 | const char *buf, size_t count) | |
1138 | { | |
1139 | unsigned long t; | |
1140 | int res; | |
1141 | ||
1142 | if (parse_strtoul(buf, 1, &t)) | |
1143 | return -EINVAL; | |
1144 | ||
1145 | res = bluetooth_set_radiosw(t); | |
1146 | ||
1147 | return (res) ? res : count; | |
1148 | } | |
1149 | ||
1150 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 1151 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
1152 | bluetooth_enable_show, bluetooth_enable_store); |
1153 | ||
1154 | /* --------------------------------------------------------------------- */ | |
1155 | ||
1156 | static struct attribute *bluetooth_attributes[] = { | |
1157 | &dev_attr_bluetooth_enable.attr, | |
1158 | NULL | |
1159 | }; | |
1160 | ||
1161 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
1162 | .attrs = bluetooth_attributes, |
1163 | }; | |
1164 | ||
a5763f22 | 1165 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 1166 | { |
d3a6ade4 | 1167 | int res; |
d6fdd1e9 HMH |
1168 | int status = 0; |
1169 | ||
fe08bc4b HMH |
1170 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
1171 | ||
8d376cd6 | 1172 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1173 | |
78f81cc4 BD |
1174 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1175 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 1176 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
1177 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
1178 | ||
1179 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
1180 | str_supported(tp_features.bluetooth), | |
1181 | status); | |
1182 | ||
d3a6ade4 HMH |
1183 | if (tp_features.bluetooth) { |
1184 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
1185 | /* no bluetooth hardware present in system */ | |
1186 | tp_features.bluetooth = 0; | |
1187 | dbg_printk(TPACPI_DBG_INIT, | |
1188 | "bluetooth hardware not installed\n"); | |
1189 | } else { | |
1190 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
1191 | &bluetooth_attr_group); | |
1192 | if (res) | |
1193 | return res; | |
1194 | } | |
d6fdd1e9 | 1195 | } |
fe08bc4b | 1196 | |
d8fd94d9 | 1197 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
1198 | } |
1199 | ||
d3a6ade4 HMH |
1200 | static void bluetooth_exit(void) |
1201 | { | |
1202 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
1203 | &bluetooth_attr_group); | |
1204 | } | |
1205 | ||
d6fdd1e9 | 1206 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
1207 | { |
1208 | int status; | |
1209 | ||
d6fdd1e9 HMH |
1210 | if (!tp_features.bluetooth) |
1211 | return -ENODEV; | |
1da177e4 | 1212 | |
d6fdd1e9 HMH |
1213 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
1214 | return -EIO; | |
1215 | ||
1216 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
1217 | } | |
1218 | ||
1219 | static int bluetooth_set_radiosw(int radio_on) | |
1220 | { | |
1221 | int status; | |
1222 | ||
1223 | if (!tp_features.bluetooth) | |
1224 | return -ENODEV; | |
1225 | ||
1226 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
1227 | return -EIO; | |
1228 | if (radio_on) | |
1229 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
1230 | else | |
1231 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
1232 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
1233 | return -EIO; | |
1234 | ||
1235 | return 0; | |
1da177e4 LT |
1236 | } |
1237 | ||
d3a6ade4 | 1238 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 1239 | static int bluetooth_read(char *p) |
1da177e4 LT |
1240 | { |
1241 | int len = 0; | |
d6fdd1e9 | 1242 | int status = bluetooth_get_radiosw(); |
1da177e4 | 1243 | |
d8fd94d9 | 1244 | if (!tp_features.bluetooth) |
1da177e4 | 1245 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 1246 | else { |
d6fdd1e9 HMH |
1247 | len += sprintf(p + len, "status:\t\t%s\n", |
1248 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
1249 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1250 | } | |
1251 | ||
1252 | return len; | |
1253 | } | |
1254 | ||
78f81cc4 | 1255 | static int bluetooth_write(char *buf) |
1da177e4 | 1256 | { |
1da177e4 | 1257 | char *cmd; |
1da177e4 | 1258 | |
d8fd94d9 | 1259 | if (!tp_features.bluetooth) |
78f81cc4 | 1260 | return -ENODEV; |
1da177e4 LT |
1261 | |
1262 | while ((cmd = next_cmd(&buf))) { | |
1263 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1264 | bluetooth_set_radiosw(1); |
1da177e4 | 1265 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1266 | bluetooth_set_radiosw(0); |
1da177e4 LT |
1267 | } else |
1268 | return -EINVAL; | |
1da177e4 LT |
1269 | } |
1270 | ||
1da177e4 LT |
1271 | return 0; |
1272 | } | |
1273 | ||
a5763f22 HMH |
1274 | static struct ibm_struct bluetooth_driver_data = { |
1275 | .name = "bluetooth", | |
1276 | .read = bluetooth_read, | |
1277 | .write = bluetooth_write, | |
d3a6ade4 | 1278 | .exit = bluetooth_exit, |
a5763f22 HMH |
1279 | }; |
1280 | ||
56b6aeb0 HMH |
1281 | /************************************************************************* |
1282 | * Wan subdriver | |
1283 | */ | |
1284 | ||
d3a6ade4 HMH |
1285 | /* sysfs wan enable ---------------------------------------------------- */ |
1286 | static ssize_t wan_enable_show(struct device *dev, | |
1287 | struct device_attribute *attr, | |
1288 | char *buf) | |
1289 | { | |
1290 | int status; | |
1291 | ||
1292 | status = wan_get_radiosw(); | |
1293 | if (status < 0) | |
1294 | return status; | |
1295 | ||
1296 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
1297 | } | |
1298 | ||
1299 | static ssize_t wan_enable_store(struct device *dev, | |
1300 | struct device_attribute *attr, | |
1301 | const char *buf, size_t count) | |
1302 | { | |
1303 | unsigned long t; | |
1304 | int res; | |
1305 | ||
1306 | if (parse_strtoul(buf, 1, &t)) | |
1307 | return -EINVAL; | |
1308 | ||
1309 | res = wan_set_radiosw(t); | |
1310 | ||
1311 | return (res) ? res : count; | |
1312 | } | |
1313 | ||
1314 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 1315 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
1316 | wan_enable_show, wan_enable_store); |
1317 | ||
1318 | /* --------------------------------------------------------------------- */ | |
1319 | ||
1320 | static struct attribute *wan_attributes[] = { | |
1321 | &dev_attr_wan_enable.attr, | |
1322 | NULL | |
1323 | }; | |
1324 | ||
1325 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
1326 | .attrs = wan_attributes, |
1327 | }; | |
1328 | ||
a5763f22 | 1329 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 1330 | { |
d3a6ade4 | 1331 | int res; |
d6fdd1e9 HMH |
1332 | int status = 0; |
1333 | ||
fe08bc4b HMH |
1334 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
1335 | ||
8d376cd6 | 1336 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1337 | |
d8fd94d9 | 1338 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
1339 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
1340 | ||
1341 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
1342 | str_supported(tp_features.wan), | |
1343 | status); | |
1344 | ||
d3a6ade4 HMH |
1345 | if (tp_features.wan) { |
1346 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
1347 | /* no wan hardware present in system */ | |
1348 | tp_features.wan = 0; | |
1349 | dbg_printk(TPACPI_DBG_INIT, | |
1350 | "wan hardware not installed\n"); | |
1351 | } else { | |
1352 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
1353 | &wan_attr_group); | |
1354 | if (res) | |
1355 | return res; | |
1356 | } | |
d6fdd1e9 | 1357 | } |
fe08bc4b | 1358 | |
d8fd94d9 | 1359 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
1360 | } |
1361 | ||
d3a6ade4 HMH |
1362 | static void wan_exit(void) |
1363 | { | |
1364 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
1365 | &wan_attr_group); | |
1366 | } | |
1367 | ||
d6fdd1e9 | 1368 | static int wan_get_radiosw(void) |
42adb53c JF |
1369 | { |
1370 | int status; | |
1371 | ||
d6fdd1e9 HMH |
1372 | if (!tp_features.wan) |
1373 | return -ENODEV; | |
42adb53c | 1374 | |
d6fdd1e9 HMH |
1375 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
1376 | return -EIO; | |
1377 | ||
1378 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
1379 | } | |
1380 | ||
1381 | static int wan_set_radiosw(int radio_on) | |
1382 | { | |
1383 | int status; | |
1384 | ||
1385 | if (!tp_features.wan) | |
1386 | return -ENODEV; | |
1387 | ||
1388 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
1389 | return -EIO; | |
1390 | if (radio_on) | |
1391 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
1392 | else | |
1393 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
1394 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
1395 | return -EIO; | |
1396 | ||
1397 | return 0; | |
42adb53c JF |
1398 | } |
1399 | ||
d3a6ade4 | 1400 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
1401 | static int wan_read(char *p) |
1402 | { | |
1403 | int len = 0; | |
d6fdd1e9 | 1404 | int status = wan_get_radiosw(); |
42adb53c | 1405 | |
d8fd94d9 | 1406 | if (!tp_features.wan) |
42adb53c | 1407 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 1408 | else { |
d6fdd1e9 HMH |
1409 | len += sprintf(p + len, "status:\t\t%s\n", |
1410 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
1411 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1412 | } | |
1413 | ||
1414 | return len; | |
1415 | } | |
1416 | ||
1417 | static int wan_write(char *buf) | |
1418 | { | |
42adb53c | 1419 | char *cmd; |
42adb53c | 1420 | |
d8fd94d9 | 1421 | if (!tp_features.wan) |
42adb53c JF |
1422 | return -ENODEV; |
1423 | ||
1424 | while ((cmd = next_cmd(&buf))) { | |
1425 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1426 | wan_set_radiosw(1); |
42adb53c | 1427 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1428 | wan_set_radiosw(0); |
42adb53c JF |
1429 | } else |
1430 | return -EINVAL; | |
42adb53c JF |
1431 | } |
1432 | ||
42adb53c JF |
1433 | return 0; |
1434 | } | |
1435 | ||
a5763f22 HMH |
1436 | static struct ibm_struct wan_driver_data = { |
1437 | .name = "wan", | |
1438 | .read = wan_read, | |
1439 | .write = wan_write, | |
d3a6ade4 | 1440 | .exit = wan_exit, |
92641177 | 1441 | .flags.experimental = 1, |
a5763f22 HMH |
1442 | }; |
1443 | ||
56b6aeb0 HMH |
1444 | /************************************************************************* |
1445 | * Video subdriver | |
1446 | */ | |
1447 | ||
9a8e1738 HMH |
1448 | static enum video_access_mode video_supported; |
1449 | static int video_orig_autosw; | |
78f81cc4 | 1450 | |
56b6aeb0 HMH |
1451 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
1452 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
1453 | "\\_SB.PCI0.VID0", /* 770e */ | |
1454 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
1455 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
1456 | ); /* R30, R31 */ | |
1457 | ||
1458 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
1459 | ||
a5763f22 | 1460 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 1461 | { |
78f81cc4 BD |
1462 | int ivga; |
1463 | ||
fe08bc4b HMH |
1464 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
1465 | ||
8d376cd6 HMH |
1466 | IBM_ACPIHANDLE_INIT(vid); |
1467 | IBM_ACPIHANDLE_INIT(vid2); | |
5fba344c | 1468 | |
78f81cc4 BD |
1469 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
1470 | /* G41, assume IVGA doesn't change */ | |
1471 | vid_handle = vid2_handle; | |
1472 | ||
1473 | if (!vid_handle) | |
1474 | /* video switching not supported on R30, R31 */ | |
efa27145 | 1475 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
1476 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
1477 | /* 570 */ | |
efa27145 | 1478 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
1479 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
1480 | /* 600e/x, 770e, 770x */ | |
efa27145 | 1481 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
1482 | else |
1483 | /* all others */ | |
efa27145 | 1484 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 1485 | |
fe08bc4b HMH |
1486 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
1487 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
1488 | video_supported); | |
1489 | ||
5fba344c | 1490 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
1491 | } |
1492 | ||
56b6aeb0 HMH |
1493 | static void video_exit(void) |
1494 | { | |
83f34724 HMH |
1495 | dbg_printk(TPACPI_DBG_EXIT, |
1496 | "restoring original video autoswitch mode\n"); | |
1497 | if (video_autosw_set(video_orig_autosw)) | |
1498 | printk(IBM_ERR "error while trying to restore original " | |
1499 | "video autoswitch mode\n"); | |
56b6aeb0 HMH |
1500 | } |
1501 | ||
83f34724 | 1502 | static int video_outputsw_get(void) |
1da177e4 LT |
1503 | { |
1504 | int status = 0; | |
1505 | int i; | |
1506 | ||
83f34724 HMH |
1507 | switch (video_supported) { |
1508 | case TPACPI_VIDEO_570: | |
1509 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
1510 | TP_ACPI_VIDEO_570_PHSCMD)) | |
1511 | return -EIO; | |
1512 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
1513 | break; | |
1514 | case TPACPI_VIDEO_770: | |
1515 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1516 | return -EIO; | |
1517 | if (i) | |
1518 | status |= TP_ACPI_VIDEO_S_LCD; | |
1519 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1520 | return -EIO; | |
1521 | if (i) | |
1522 | status |= TP_ACPI_VIDEO_S_CRT; | |
1523 | break; | |
1524 | case TPACPI_VIDEO_NEW: | |
1525 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
1526 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1527 | return -EIO; | |
1528 | if (i) | |
1529 | status |= TP_ACPI_VIDEO_S_CRT; | |
1530 | ||
1531 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
1532 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1533 | return -EIO; | |
1534 | if (i) | |
1535 | status |= TP_ACPI_VIDEO_S_LCD; | |
1536 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
1537 | return -EIO; | |
1538 | if (i) | |
1539 | status |= TP_ACPI_VIDEO_S_DVI; | |
1540 | break; | |
1541 | default: | |
1542 | return -ENOSYS; | |
78f81cc4 BD |
1543 | } |
1544 | ||
1545 | return status; | |
1546 | } | |
1da177e4 | 1547 | |
83f34724 | 1548 | static int video_outputsw_set(int status) |
78f81cc4 | 1549 | { |
83f34724 HMH |
1550 | int autosw; |
1551 | int res = 0; | |
1552 | ||
1553 | switch (video_supported) { | |
1554 | case TPACPI_VIDEO_570: | |
1555 | res = acpi_evalf(NULL, NULL, | |
1556 | "\\_SB.PHS2", "vdd", | |
1557 | TP_ACPI_VIDEO_570_PHS2CMD, | |
1558 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
1559 | break; | |
1560 | case TPACPI_VIDEO_770: | |
1561 | autosw = video_autosw_get(); | |
1562 | if (autosw < 0) | |
1563 | return autosw; | |
1da177e4 | 1564 | |
83f34724 HMH |
1565 | res = video_autosw_set(1); |
1566 | if (res) | |
1567 | return res; | |
1568 | res = acpi_evalf(vid_handle, NULL, | |
1569 | "ASWT", "vdd", status * 0x100, 0); | |
1570 | if (!autosw && video_autosw_set(autosw)) { | |
1571 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1572 | return -EIO; | |
1573 | } | |
1574 | break; | |
1575 | case TPACPI_VIDEO_NEW: | |
1576 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
1577 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
1578 | break; | |
1579 | default: | |
1580 | return -ENOSYS; | |
1581 | } | |
1da177e4 | 1582 | |
83f34724 | 1583 | return (res)? 0 : -EIO; |
1da177e4 LT |
1584 | } |
1585 | ||
83f34724 | 1586 | static int video_autosw_get(void) |
78f81cc4 | 1587 | { |
83f34724 | 1588 | int autosw = 0; |
78f81cc4 | 1589 | |
83f34724 HMH |
1590 | switch (video_supported) { |
1591 | case TPACPI_VIDEO_570: | |
1592 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
1593 | return -EIO; | |
1594 | break; | |
1595 | case TPACPI_VIDEO_770: | |
1596 | case TPACPI_VIDEO_NEW: | |
1597 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
1598 | return -EIO; | |
1599 | break; | |
1600 | default: | |
1601 | return -ENOSYS; | |
1602 | } | |
78f81cc4 | 1603 | |
83f34724 | 1604 | return autosw & 1; |
78f81cc4 BD |
1605 | } |
1606 | ||
83f34724 | 1607 | static int video_autosw_set(int enable) |
78f81cc4 | 1608 | { |
83f34724 HMH |
1609 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
1610 | return -EIO; | |
1611 | return 0; | |
78f81cc4 BD |
1612 | } |
1613 | ||
83f34724 | 1614 | static int video_outputsw_cycle(void) |
78f81cc4 | 1615 | { |
83f34724 HMH |
1616 | int autosw = video_autosw_get(); |
1617 | int res; | |
78f81cc4 | 1618 | |
83f34724 HMH |
1619 | if (autosw < 0) |
1620 | return autosw; | |
78f81cc4 | 1621 | |
83f34724 HMH |
1622 | switch (video_supported) { |
1623 | case TPACPI_VIDEO_570: | |
1624 | res = video_autosw_set(1); | |
1625 | if (res) | |
1626 | return res; | |
1627 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
1628 | break; | |
1629 | case TPACPI_VIDEO_770: | |
1630 | case TPACPI_VIDEO_NEW: | |
1631 | res = video_autosw_set(1); | |
1632 | if (res) | |
1633 | return res; | |
1634 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
1635 | break; | |
1636 | default: | |
1637 | return -ENOSYS; | |
1638 | } | |
1639 | if (!autosw && video_autosw_set(autosw)) { | |
1640 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1641 | return -EIO; | |
78f81cc4 BD |
1642 | } |
1643 | ||
83f34724 HMH |
1644 | return (res)? 0 : -EIO; |
1645 | } | |
1646 | ||
1647 | static int video_expand_toggle(void) | |
1648 | { | |
1649 | switch (video_supported) { | |
1650 | case TPACPI_VIDEO_570: | |
1651 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
1652 | 0 : -EIO; | |
1653 | case TPACPI_VIDEO_770: | |
1654 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
1655 | 0 : -EIO; | |
1656 | case TPACPI_VIDEO_NEW: | |
1657 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
1658 | 0 : -EIO; | |
1659 | default: | |
1660 | return -ENOSYS; | |
1661 | } | |
1662 | /* not reached */ | |
78f81cc4 BD |
1663 | } |
1664 | ||
56b6aeb0 HMH |
1665 | static int video_read(char *p) |
1666 | { | |
83f34724 | 1667 | int status, autosw; |
56b6aeb0 HMH |
1668 | int len = 0; |
1669 | ||
83f34724 | 1670 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
1671 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1672 | return len; | |
1673 | } | |
1674 | ||
83f34724 HMH |
1675 | status = video_outputsw_get(); |
1676 | if (status < 0) | |
1677 | return status; | |
1678 | ||
1679 | autosw = video_autosw_get(); | |
1680 | if (autosw < 0) | |
1681 | return autosw; | |
1682 | ||
56b6aeb0 HMH |
1683 | len += sprintf(p + len, "status:\t\tsupported\n"); |
1684 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
1685 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 1686 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1687 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
1688 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
1689 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
1690 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 1691 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1692 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
1693 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
1694 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
1695 | ||
1696 | return len; | |
1697 | } | |
1698 | ||
78f81cc4 | 1699 | static int video_write(char *buf) |
1da177e4 LT |
1700 | { |
1701 | char *cmd; | |
1702 | int enable, disable, status; | |
83f34724 | 1703 | int res; |
1da177e4 | 1704 | |
83f34724 | 1705 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
1706 | return -ENODEV; |
1707 | ||
83f34724 HMH |
1708 | enable = 0; |
1709 | disable = 0; | |
1da177e4 LT |
1710 | |
1711 | while ((cmd = next_cmd(&buf))) { | |
1712 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 1713 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 1714 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 1715 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 1716 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 1717 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 1718 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 1719 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 1720 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1721 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 1722 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 1723 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1724 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 1725 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 1726 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
1727 | res = video_autosw_set(1); |
1728 | if (res) | |
1729 | return res; | |
1da177e4 | 1730 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
1731 | res = video_autosw_set(0); |
1732 | if (res) | |
1733 | return res; | |
1da177e4 | 1734 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
1735 | res = video_outputsw_cycle(); |
1736 | if (res) | |
1737 | return res; | |
1da177e4 | 1738 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
1739 | res = video_expand_toggle(); |
1740 | if (res) | |
1741 | return res; | |
1da177e4 LT |
1742 | } else |
1743 | return -EINVAL; | |
1744 | } | |
1745 | ||
1746 | if (enable || disable) { | |
83f34724 HMH |
1747 | status = video_outputsw_get(); |
1748 | if (status < 0) | |
1749 | return status; | |
1750 | res = video_outputsw_set((status & ~disable) | enable); | |
1751 | if (res) | |
1752 | return res; | |
1da177e4 LT |
1753 | } |
1754 | ||
1755 | return 0; | |
1756 | } | |
1757 | ||
a5763f22 HMH |
1758 | static struct ibm_struct video_driver_data = { |
1759 | .name = "video", | |
1760 | .read = video_read, | |
1761 | .write = video_write, | |
1762 | .exit = video_exit, | |
1763 | }; | |
1764 | ||
56b6aeb0 HMH |
1765 | /************************************************************************* |
1766 | * Light (thinklight) subdriver | |
1767 | */ | |
1da177e4 | 1768 | |
56b6aeb0 HMH |
1769 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
1770 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
1771 | ||
a5763f22 | 1772 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 1773 | { |
fe08bc4b HMH |
1774 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
1775 | ||
8d376cd6 HMH |
1776 | IBM_ACPIHANDLE_INIT(ledb); |
1777 | IBM_ACPIHANDLE_INIT(lght); | |
1778 | IBM_ACPIHANDLE_INIT(cmos); | |
5fba344c | 1779 | |
78f81cc4 | 1780 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 1781 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 1782 | |
d8fd94d9 | 1783 | if (tp_features.light) |
78f81cc4 BD |
1784 | /* light status not supported on |
1785 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
1786 | tp_features.light_status = |
1787 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 1788 | |
fe08bc4b | 1789 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 1790 | str_supported(tp_features.light)); |
fe08bc4b | 1791 | |
d8fd94d9 | 1792 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
1793 | } |
1794 | ||
78f81cc4 | 1795 | static int light_read(char *p) |
1da177e4 LT |
1796 | { |
1797 | int len = 0; | |
1798 | int status = 0; | |
1799 | ||
d8fd94d9 | 1800 | if (!tp_features.light) { |
78f81cc4 | 1801 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 1802 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
1803 | len += sprintf(p + len, "status:\t\tunknown\n"); |
1804 | len += sprintf(p + len, "commands:\ton, off\n"); | |
1805 | } else { | |
1da177e4 LT |
1806 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
1807 | return -EIO; | |
1808 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
1809 | len += sprintf(p + len, "commands:\ton, off\n"); |
1810 | } | |
1da177e4 LT |
1811 | |
1812 | return len; | |
1813 | } | |
1814 | ||
78f81cc4 | 1815 | static int light_write(char *buf) |
1da177e4 LT |
1816 | { |
1817 | int cmos_cmd, lght_cmd; | |
1818 | char *cmd; | |
1819 | int success; | |
78f81cc4 | 1820 | |
d8fd94d9 | 1821 | if (!tp_features.light) |
78f81cc4 BD |
1822 | return -ENODEV; |
1823 | ||
1da177e4 LT |
1824 | while ((cmd = next_cmd(&buf))) { |
1825 | if (strlencmp(cmd, "on") == 0) { | |
1826 | cmos_cmd = 0x0c; | |
1827 | lght_cmd = 1; | |
1828 | } else if (strlencmp(cmd, "off") == 0) { | |
1829 | cmos_cmd = 0x0d; | |
1830 | lght_cmd = 0; | |
1831 | } else | |
1832 | return -EINVAL; | |
78f81cc4 | 1833 | |
1da177e4 | 1834 | success = cmos_handle ? |
78f81cc4 BD |
1835 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
1836 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
1837 | if (!success) |
1838 | return -EIO; | |
1839 | } | |
1840 | ||
1841 | return 0; | |
1842 | } | |
1843 | ||
a5763f22 HMH |
1844 | static struct ibm_struct light_driver_data = { |
1845 | .name = "light", | |
1846 | .read = light_read, | |
1847 | .write = light_write, | |
1848 | }; | |
1849 | ||
56b6aeb0 HMH |
1850 | /************************************************************************* |
1851 | * Dock subdriver | |
1852 | */ | |
1da177e4 | 1853 | |
85998248 | 1854 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 HMH |
1855 | |
1856 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ | |
1857 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
1858 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
1859 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
1860 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
1861 | ||
5fba344c HMH |
1862 | /* don't list other alternatives as we install a notify handler on the 570 */ |
1863 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
1864 | ||
d94a7f16 HMH |
1865 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
1866 | { | |
1867 | .notify = dock_notify, | |
1868 | .handle = &dock_handle, | |
1869 | .type = ACPI_SYSTEM_NOTIFY, | |
1870 | }, | |
1871 | { | |
1872 | .hid = IBM_PCI_HID, | |
1873 | .notify = dock_notify, | |
1874 | .handle = &pci_handle, | |
1875 | .type = ACPI_SYSTEM_NOTIFY, | |
1876 | }, | |
1877 | }; | |
1878 | ||
1879 | static struct ibm_struct dock_driver_data[2] = { | |
1880 | { | |
1881 | .name = "dock", | |
1882 | .read = dock_read, | |
1883 | .write = dock_write, | |
1884 | .acpi = &ibm_dock_acpidriver[0], | |
1885 | }, | |
1886 | { | |
1887 | .name = "dock", | |
1888 | .acpi = &ibm_dock_acpidriver[1], | |
1889 | }, | |
1890 | }; | |
1891 | ||
1da177e4 LT |
1892 | #define dock_docked() (_sta(dock_handle) & 1) |
1893 | ||
a5763f22 | 1894 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 1895 | { |
fe08bc4b HMH |
1896 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
1897 | ||
8d376cd6 | 1898 | IBM_ACPIHANDLE_INIT(dock); |
5fba344c | 1899 | |
fe08bc4b HMH |
1900 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
1901 | str_supported(dock_handle != NULL)); | |
1902 | ||
5fba344c HMH |
1903 | return (dock_handle)? 0 : 1; |
1904 | } | |
1905 | ||
d94a7f16 HMH |
1906 | static int __init dock_init2(struct ibm_init_struct *iibm) |
1907 | { | |
1908 | int dock2_needed; | |
1909 | ||
1910 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
1911 | ||
1912 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
1913 | dock_driver_data[0].flags.acpi_notify_installed) { | |
1914 | IBM_ACPIHANDLE_INIT(pci); | |
1915 | dock2_needed = (pci_handle != NULL); | |
1916 | vdbg_printk(TPACPI_DBG_INIT, | |
1917 | "dock PCI handler for the TP 570 is %s\n", | |
1918 | str_supported(dock2_needed)); | |
1919 | } else { | |
1920 | vdbg_printk(TPACPI_DBG_INIT, | |
1921 | "dock subdriver part 2 not required\n"); | |
1922 | dock2_needed = 0; | |
1923 | } | |
1924 | ||
1925 | return (dock2_needed)? 0 : 1; | |
1926 | } | |
1927 | ||
56b6aeb0 HMH |
1928 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
1929 | { | |
1930 | int docked = dock_docked(); | |
8d376cd6 | 1931 | int pci = ibm->acpi->hid && strstr(ibm->acpi->hid, IBM_PCI_HID); |
56b6aeb0 HMH |
1932 | |
1933 | if (event == 1 && !pci) /* 570 */ | |
8d376cd6 | 1934 | acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */ |
56b6aeb0 | 1935 | else if (event == 1 && pci) /* 570 */ |
8d376cd6 | 1936 | acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */ |
56b6aeb0 | 1937 | else if (event == 3 && docked) |
8d376cd6 | 1938 | acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */ |
56b6aeb0 | 1939 | else if (event == 3 && !docked) |
8d376cd6 | 1940 | acpi_bus_generate_event(ibm->acpi->device, event, 2); /* undock */ |
56b6aeb0 | 1941 | else if (event == 0 && docked) |
8d376cd6 | 1942 | acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */ |
56b6aeb0 HMH |
1943 | else { |
1944 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
1945 | event, _sta(dock_handle)); | |
8d376cd6 | 1946 | acpi_bus_generate_event(ibm->acpi->device, event, 0); /* unknown */ |
56b6aeb0 HMH |
1947 | } |
1948 | } | |
1949 | ||
78f81cc4 | 1950 | static int dock_read(char *p) |
1da177e4 LT |
1951 | { |
1952 | int len = 0; | |
1953 | int docked = dock_docked(); | |
1954 | ||
1955 | if (!dock_handle) | |
1956 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1957 | else if (!docked) | |
1958 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
1959 | else { | |
1960 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
1961 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
1962 | } | |
1963 | ||
1964 | return len; | |
1965 | } | |
1966 | ||
78f81cc4 | 1967 | static int dock_write(char *buf) |
1da177e4 LT |
1968 | { |
1969 | char *cmd; | |
1970 | ||
1971 | if (!dock_docked()) | |
78f81cc4 | 1972 | return -ENODEV; |
1da177e4 LT |
1973 | |
1974 | while ((cmd = next_cmd(&buf))) { | |
1975 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
1976 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
1977 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
1978 | return -EIO; |
1979 | } else if (strlencmp(cmd, "dock") == 0) { | |
1980 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
1981 | return -EIO; | |
1982 | } else | |
1983 | return -EINVAL; | |
1da177e4 | 1984 | } |
56b6aeb0 HMH |
1985 | |
1986 | return 0; | |
1da177e4 | 1987 | } |
56b6aeb0 | 1988 | |
85998248 | 1989 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
1990 | |
1991 | /************************************************************************* | |
1992 | * Bay subdriver | |
1993 | */ | |
1da177e4 | 1994 | |
85998248 | 1995 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
56b6aeb0 HMH |
1996 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
1997 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
1998 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
1999 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
2000 | ); /* A21e, R30, R31 */ | |
2001 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
2002 | "_EJ0", /* all others */ | |
2003 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
2004 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
2005 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
2006 | ); /* all others */ | |
2007 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
2008 | "_EJ0", /* 770x */ | |
2009 | ); /* all others */ | |
2010 | ||
a5763f22 | 2011 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 2012 | { |
fe08bc4b HMH |
2013 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
2014 | ||
8d376cd6 | 2015 | IBM_ACPIHANDLE_INIT(bay); |
5fba344c | 2016 | if (bay_handle) |
8d376cd6 HMH |
2017 | IBM_ACPIHANDLE_INIT(bay_ej); |
2018 | IBM_ACPIHANDLE_INIT(bay2); | |
5fba344c | 2019 | if (bay2_handle) |
8d376cd6 | 2020 | IBM_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 2021 | |
d8fd94d9 HMH |
2022 | tp_features.bay_status = bay_handle && |
2023 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
2024 | tp_features.bay_status2 = bay2_handle && | |
2025 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 2026 | |
d8fd94d9 HMH |
2027 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
2028 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
2029 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
2030 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 2031 | |
fe08bc4b HMH |
2032 | vdbg_printk(TPACPI_DBG_INIT, |
2033 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
2034 | str_supported(tp_features.bay_status), |
2035 | str_supported(tp_features.bay_eject), | |
2036 | str_supported(tp_features.bay_status2), | |
2037 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 2038 | |
d8fd94d9 HMH |
2039 | return (tp_features.bay_status || tp_features.bay_eject || |
2040 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
2041 | } |
2042 | ||
56b6aeb0 HMH |
2043 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
2044 | { | |
8d376cd6 | 2045 | acpi_bus_generate_event(ibm->acpi->device, event, 0); |
56b6aeb0 HMH |
2046 | } |
2047 | ||
78f81cc4 BD |
2048 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
2049 | ||
2050 | static int bay_read(char *p) | |
1da177e4 LT |
2051 | { |
2052 | int len = 0; | |
78f81cc4 BD |
2053 | int occupied = bay_occupied(bay); |
2054 | int occupied2 = bay_occupied(bay2); | |
2055 | int eject, eject2; | |
2056 | ||
d8fd94d9 HMH |
2057 | len += sprintf(p + len, "status:\t\t%s\n", |
2058 | tp_features.bay_status ? | |
2059 | (occupied ? "occupied" : "unoccupied") : | |
2060 | "not supported"); | |
2061 | if (tp_features.bay_status2) | |
78f81cc4 BD |
2062 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
2063 | "occupied" : "unoccupied"); | |
2064 | ||
d8fd94d9 HMH |
2065 | eject = tp_features.bay_eject && occupied; |
2066 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
2067 | |
2068 | if (eject && eject2) | |
2069 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
2070 | else if (eject) | |
1da177e4 | 2071 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
2072 | else if (eject2) |
2073 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
2074 | |
2075 | return len; | |
2076 | } | |
2077 | ||
78f81cc4 | 2078 | static int bay_write(char *buf) |
1da177e4 LT |
2079 | { |
2080 | char *cmd; | |
2081 | ||
d8fd94d9 | 2082 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
2083 | return -ENODEV; |
2084 | ||
1da177e4 | 2085 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 2086 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
2087 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
2088 | return -EIO; | |
d8fd94d9 | 2089 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
2090 | strlencmp(cmd, "eject2") == 0) { |
2091 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
2092 | return -EIO; |
2093 | } else | |
2094 | return -EINVAL; | |
2095 | } | |
2096 | ||
2097 | return 0; | |
78f81cc4 | 2098 | } |
a5763f22 | 2099 | |
8d376cd6 HMH |
2100 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
2101 | .notify = bay_notify, | |
2102 | .handle = &bay_handle, | |
2103 | .type = ACPI_SYSTEM_NOTIFY, | |
2104 | }; | |
2105 | ||
a5763f22 HMH |
2106 | static struct ibm_struct bay_driver_data = { |
2107 | .name = "bay", | |
2108 | .read = bay_read, | |
2109 | .write = bay_write, | |
8d376cd6 | 2110 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
2111 | }; |
2112 | ||
85998248 | 2113 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 2114 | |
56b6aeb0 HMH |
2115 | /************************************************************************* |
2116 | * CMOS subdriver | |
2117 | */ | |
2118 | ||
b616004c HMH |
2119 | /* sysfs cmos_command -------------------------------------------------- */ |
2120 | static ssize_t cmos_command_store(struct device *dev, | |
2121 | struct device_attribute *attr, | |
2122 | const char *buf, size_t count) | |
2123 | { | |
2124 | unsigned long cmos_cmd; | |
2125 | int res; | |
2126 | ||
2127 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
2128 | return -EINVAL; | |
2129 | ||
2130 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
2131 | return (res)? res : count; | |
2132 | } | |
2133 | ||
2134 | static struct device_attribute dev_attr_cmos_command = | |
2135 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
2136 | ||
2137 | /* --------------------------------------------------------------------- */ | |
2138 | ||
a5763f22 | 2139 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 2140 | { |
b616004c HMH |
2141 | int res; |
2142 | ||
fe08bc4b HMH |
2143 | vdbg_printk(TPACPI_DBG_INIT, |
2144 | "initializing cmos commands subdriver\n"); | |
2145 | ||
8d376cd6 | 2146 | IBM_ACPIHANDLE_INIT(cmos); |
5fba344c | 2147 | |
fe08bc4b HMH |
2148 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
2149 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
2150 | |
2151 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
2152 | if (res) | |
2153 | return res; | |
2154 | ||
5fba344c HMH |
2155 | return (cmos_handle)? 0 : 1; |
2156 | } | |
2157 | ||
b616004c HMH |
2158 | static void cmos_exit(void) |
2159 | { | |
2160 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
2161 | } | |
2162 | ||
78f81cc4 | 2163 | static int cmos_read(char *p) |
1da177e4 LT |
2164 | { |
2165 | int len = 0; | |
2166 | ||
78f81cc4 BD |
2167 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2168 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
2169 | if (!cmos_handle) |
2170 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2171 | else { | |
2172 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 2173 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
2174 | } |
2175 | ||
2176 | return len; | |
2177 | } | |
2178 | ||
78f81cc4 | 2179 | static int cmos_write(char *buf) |
1da177e4 LT |
2180 | { |
2181 | char *cmd; | |
c9bea99c | 2182 | int cmos_cmd, res; |
1da177e4 LT |
2183 | |
2184 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
2185 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
2186 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
2187 | /* cmos_cmd set */ |
2188 | } else | |
2189 | return -EINVAL; | |
2190 | ||
c9bea99c HMH |
2191 | res = issue_thinkpad_cmos_command(cmos_cmd); |
2192 | if (res) | |
2193 | return res; | |
1da177e4 LT |
2194 | } |
2195 | ||
2196 | return 0; | |
78f81cc4 BD |
2197 | } |
2198 | ||
a5763f22 HMH |
2199 | static struct ibm_struct cmos_driver_data = { |
2200 | .name = "cmos", | |
2201 | .read = cmos_read, | |
2202 | .write = cmos_write, | |
b616004c | 2203 | .exit = cmos_exit, |
a5763f22 | 2204 | }; |
56b6aeb0 HMH |
2205 | |
2206 | /************************************************************************* | |
2207 | * LED subdriver | |
2208 | */ | |
2209 | ||
9a8e1738 | 2210 | static enum led_access_mode led_supported; |
78f81cc4 | 2211 | |
56b6aeb0 HMH |
2212 | IBM_HANDLE(led, ec, "SLED", /* 570 */ |
2213 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
2214 | "LED", /* all others */ | |
2215 | ); /* R30, R31 */ | |
2216 | ||
a5763f22 | 2217 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2218 | { |
fe08bc4b HMH |
2219 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
2220 | ||
8d376cd6 | 2221 | IBM_ACPIHANDLE_INIT(led); |
5fba344c | 2222 | |
78f81cc4 BD |
2223 | if (!led_handle) |
2224 | /* led not supported on R30, R31 */ | |
efa27145 | 2225 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
2226 | else if (strlencmp(led_path, "SLED") == 0) |
2227 | /* 570 */ | |
efa27145 | 2228 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
2229 | else if (strlencmp(led_path, "SYSL") == 0) |
2230 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 2231 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
2232 | else |
2233 | /* all others */ | |
efa27145 | 2234 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 2235 | |
fe08bc4b HMH |
2236 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
2237 | str_supported(led_supported), led_supported); | |
2238 | ||
5fba344c | 2239 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
2240 | } |
2241 | ||
2242 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
2243 | ||
2244 | static int led_read(char *p) | |
1da177e4 LT |
2245 | { |
2246 | int len = 0; | |
2247 | ||
78f81cc4 BD |
2248 | if (!led_supported) { |
2249 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2250 | return len; | |
2251 | } | |
2252 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2253 | ||
efa27145 | 2254 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2255 | /* 570 */ |
2256 | int i, status; | |
2257 | for (i = 0; i < 8; i++) { | |
2258 | if (!acpi_evalf(ec_handle, | |
2259 | &status, "GLED", "dd", 1 << i)) | |
2260 | return -EIO; | |
2261 | len += sprintf(p + len, "%d:\t\t%s\n", | |
2262 | i, led_status(status)); | |
2263 | } | |
2264 | } | |
2265 | ||
1da177e4 | 2266 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 2267 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
2268 | |
2269 | return len; | |
2270 | } | |
2271 | ||
78f81cc4 BD |
2272 | /* off, on, blink */ |
2273 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
2274 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
2275 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
2276 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
2277 | ||
78f81cc4 | 2278 | static int led_write(char *buf) |
1da177e4 LT |
2279 | { |
2280 | char *cmd; | |
78f81cc4 BD |
2281 | int led, ind, ret; |
2282 | ||
2283 | if (!led_supported) | |
2284 | return -ENODEV; | |
1da177e4 LT |
2285 | |
2286 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 2287 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
2288 | return -EINVAL; |
2289 | ||
78f81cc4 BD |
2290 | if (strstr(cmd, "off")) { |
2291 | ind = 0; | |
1da177e4 | 2292 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
2293 | ind = 1; |
2294 | } else if (strstr(cmd, "blink")) { | |
2295 | ind = 2; | |
1da177e4 LT |
2296 | } else |
2297 | return -EINVAL; | |
78f81cc4 | 2298 | |
efa27145 | 2299 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2300 | /* 570 */ |
2301 | led = 1 << led; | |
1da177e4 | 2302 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 2303 | led, led_sled_arg1[ind])) |
1da177e4 | 2304 | return -EIO; |
efa27145 | 2305 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
2306 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
2307 | led = 1 << led; | |
efa27145 | 2308 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
2309 | if (ret >= 0) |
2310 | ret = | |
efa27145 | 2311 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 2312 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
2313 | if (ret >= 0) |
2314 | ret = | |
efa27145 | 2315 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 2316 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
2317 | if (ret < 0) |
2318 | return ret; | |
2319 | } else { | |
2320 | /* all others */ | |
2321 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
2322 | led, led_led_arg1[ind])) | |
1da177e4 | 2323 | return -EIO; |
78f81cc4 BD |
2324 | } |
2325 | } | |
2326 | ||
2327 | return 0; | |
2328 | } | |
2329 | ||
a5763f22 HMH |
2330 | static struct ibm_struct led_driver_data = { |
2331 | .name = "led", | |
2332 | .read = led_read, | |
2333 | .write = led_write, | |
2334 | }; | |
2335 | ||
56b6aeb0 HMH |
2336 | /************************************************************************* |
2337 | * Beep subdriver | |
2338 | */ | |
2339 | ||
2340 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
2341 | ||
a5763f22 | 2342 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 2343 | { |
fe08bc4b HMH |
2344 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
2345 | ||
8d376cd6 | 2346 | IBM_ACPIHANDLE_INIT(beep); |
5fba344c | 2347 | |
fe08bc4b HMH |
2348 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
2349 | str_supported(beep_handle != NULL)); | |
2350 | ||
5fba344c HMH |
2351 | return (beep_handle)? 0 : 1; |
2352 | } | |
2353 | ||
78f81cc4 BD |
2354 | static int beep_read(char *p) |
2355 | { | |
2356 | int len = 0; | |
2357 | ||
2358 | if (!beep_handle) | |
2359 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2360 | else { | |
2361 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2362 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
2363 | } | |
2364 | ||
2365 | return len; | |
2366 | } | |
2367 | ||
2368 | static int beep_write(char *buf) | |
2369 | { | |
2370 | char *cmd; | |
2371 | int beep_cmd; | |
2372 | ||
2373 | if (!beep_handle) | |
2374 | return -ENODEV; | |
2375 | ||
2376 | while ((cmd = next_cmd(&buf))) { | |
2377 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
2378 | beep_cmd >= 0 && beep_cmd <= 17) { | |
2379 | /* beep_cmd set */ | |
2380 | } else | |
2381 | return -EINVAL; | |
2382 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
2383 | return -EIO; | |
2384 | } | |
2385 | ||
2386 | return 0; | |
2387 | } | |
2388 | ||
a5763f22 HMH |
2389 | static struct ibm_struct beep_driver_data = { |
2390 | .name = "beep", | |
2391 | .read = beep_read, | |
2392 | .write = beep_write, | |
2393 | }; | |
2394 | ||
56b6aeb0 HMH |
2395 | /************************************************************************* |
2396 | * Thermal subdriver | |
2397 | */ | |
78f81cc4 | 2398 | |
a26f878a | 2399 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 2400 | |
2c37aa4e HMH |
2401 | /* sysfs temp##_input -------------------------------------------------- */ |
2402 | ||
2403 | static ssize_t thermal_temp_input_show(struct device *dev, | |
2404 | struct device_attribute *attr, | |
2405 | char *buf) | |
2406 | { | |
2407 | struct sensor_device_attribute *sensor_attr = | |
2408 | to_sensor_dev_attr(attr); | |
2409 | int idx = sensor_attr->index; | |
2410 | s32 value; | |
2411 | int res; | |
2412 | ||
2413 | res = thermal_get_sensor(idx, &value); | |
2414 | if (res) | |
2415 | return res; | |
2416 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
2417 | return -ENXIO; | |
2418 | ||
2419 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
2420 | } | |
2421 | ||
2422 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
2423 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB) | |
2424 | ||
2425 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
2426 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
2427 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
2428 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
2429 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
2430 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
2431 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
2432 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
2433 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
2434 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
2435 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
2436 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
2437 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
2438 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
2439 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
2440 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
2441 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
2442 | }; | |
2443 | ||
2444 | #define THERMAL_ATTRS(X) \ | |
2445 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
2446 | ||
2447 | static struct attribute *thermal_temp_input_attr[] = { | |
2448 | THERMAL_ATTRS(8), | |
2449 | THERMAL_ATTRS(9), | |
2450 | THERMAL_ATTRS(10), | |
2451 | THERMAL_ATTRS(11), | |
2452 | THERMAL_ATTRS(12), | |
2453 | THERMAL_ATTRS(13), | |
2454 | THERMAL_ATTRS(14), | |
2455 | THERMAL_ATTRS(15), | |
2456 | THERMAL_ATTRS(0), | |
2457 | THERMAL_ATTRS(1), | |
2458 | THERMAL_ATTRS(2), | |
2459 | THERMAL_ATTRS(3), | |
2460 | THERMAL_ATTRS(4), | |
2461 | THERMAL_ATTRS(5), | |
2462 | THERMAL_ATTRS(6), | |
2463 | THERMAL_ATTRS(7), | |
2464 | NULL | |
2465 | }; | |
2466 | ||
2467 | static const struct attribute_group thermal_temp_input16_group = { | |
2468 | .attrs = thermal_temp_input_attr | |
2469 | }; | |
2470 | ||
2471 | static const struct attribute_group thermal_temp_input8_group = { | |
2472 | .attrs = &thermal_temp_input_attr[8] | |
2473 | }; | |
2474 | ||
2475 | #undef THERMAL_SENSOR_ATTR_TEMP | |
2476 | #undef THERMAL_ATTRS | |
2477 | ||
2478 | /* --------------------------------------------------------------------- */ | |
2479 | ||
a5763f22 | 2480 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2481 | { |
60eb0b35 HMH |
2482 | u8 t, ta1, ta2; |
2483 | int i; | |
5fba344c | 2484 | int acpi_tmp7; |
2c37aa4e | 2485 | int res; |
5fba344c | 2486 | |
fe08bc4b HMH |
2487 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
2488 | ||
5fba344c | 2489 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 HMH |
2490 | |
2491 | if (ibm_thinkpad_ec_found && experimental) { | |
2492 | /* | |
2493 | * Direct EC access mode: sensors at registers | |
2494 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
2495 | * non-implemented, thermal sensors return 0x80 when | |
2496 | * not available | |
2497 | */ | |
78f81cc4 | 2498 | |
60eb0b35 HMH |
2499 | ta1 = ta2 = 0; |
2500 | for (i = 0; i < 8; i++) { | |
04cc862c | 2501 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
2502 | ta1 |= t; |
2503 | } else { | |
2504 | ta1 = 0; | |
2505 | break; | |
2506 | } | |
04cc862c | 2507 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
2508 | ta2 |= t; |
2509 | } else { | |
2510 | ta1 = 0; | |
2511 | break; | |
2512 | } | |
2513 | } | |
2514 | if (ta1 == 0) { | |
2515 | /* This is sheer paranoia, but we handle it anyway */ | |
2516 | if (acpi_tmp7) { | |
2517 | printk(IBM_ERR | |
2518 | "ThinkPad ACPI EC access misbehaving, " | |
2519 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 2520 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 HMH |
2521 | } else { |
2522 | printk(IBM_ERR | |
2523 | "ThinkPad ACPI EC access misbehaving, " | |
2524 | "disabling thermal sensors access\n"); | |
efa27145 | 2525 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
2526 | } |
2527 | } else { | |
2528 | thermal_read_mode = | |
2529 | (ta2 != 0) ? | |
efa27145 | 2530 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
2531 | } |
2532 | } else if (acpi_tmp7) { | |
a26f878a HMH |
2533 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
2534 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2535 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
2536 | } else { |
2537 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 2538 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
2539 | } |
2540 | } else { | |
2541 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 2542 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 2543 | } |
78f81cc4 | 2544 | |
fe08bc4b HMH |
2545 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
2546 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
2547 | thermal_read_mode); | |
2548 | ||
2c37aa4e HMH |
2549 | switch(thermal_read_mode) { |
2550 | case TPACPI_THERMAL_TPEC_16: | |
2551 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2552 | &thermal_temp_input16_group); | |
2553 | if (res) | |
2554 | return res; | |
2555 | break; | |
2556 | case TPACPI_THERMAL_TPEC_8: | |
2557 | case TPACPI_THERMAL_ACPI_TMP07: | |
2558 | case TPACPI_THERMAL_ACPI_UPDT: | |
2559 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2560 | &thermal_temp_input8_group); | |
2561 | if (res) | |
2562 | return res; | |
2563 | break; | |
2564 | case TPACPI_THERMAL_NONE: | |
2565 | default: | |
2566 | return 1; | |
2567 | } | |
2568 | ||
2569 | return 0; | |
2570 | } | |
2571 | ||
2572 | static void thermal_exit(void) | |
2573 | { | |
2574 | switch(thermal_read_mode) { | |
2575 | case TPACPI_THERMAL_TPEC_16: | |
2576 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2577 | &thermal_temp_input16_group); | |
2578 | break; | |
2579 | case TPACPI_THERMAL_TPEC_8: | |
2580 | case TPACPI_THERMAL_ACPI_TMP07: | |
2581 | case TPACPI_THERMAL_ACPI_UPDT: | |
2582 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2583 | &thermal_temp_input16_group); | |
2584 | break; | |
2585 | case TPACPI_THERMAL_NONE: | |
2586 | default: | |
2587 | break; | |
2588 | } | |
78f81cc4 BD |
2589 | } |
2590 | ||
04cc862c HMH |
2591 | /* idx is zero-based */ |
2592 | static int thermal_get_sensor(int idx, s32 *value) | |
78f81cc4 | 2593 | { |
04cc862c | 2594 | int t; |
60eb0b35 | 2595 | s8 tmp; |
04cc862c | 2596 | char tmpi[5]; |
78f81cc4 | 2597 | |
04cc862c | 2598 | t = TP_EC_THERMAL_TMP0; |
78f81cc4 | 2599 | |
a26f878a | 2600 | switch (thermal_read_mode) { |
efa27145 HMH |
2601 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 |
2602 | case TPACPI_THERMAL_TPEC_16: | |
04cc862c HMH |
2603 | if (idx >= 8 && idx <= 15) { |
2604 | t = TP_EC_THERMAL_TMP8; | |
2605 | idx -= 8; | |
60eb0b35 HMH |
2606 | } |
2607 | /* fallthrough */ | |
2608 | #endif | |
efa27145 | 2609 | case TPACPI_THERMAL_TPEC_8: |
04cc862c HMH |
2610 | if (idx <= 7) { |
2611 | if (!acpi_ec_read(t + idx, &tmp)) | |
78f81cc4 | 2612 | return -EIO; |
04cc862c HMH |
2613 | *value = tmp * 1000; |
2614 | return 0; | |
60eb0b35 | 2615 | } |
04cc862c | 2616 | break; |
78f81cc4 | 2617 | |
efa27145 | 2618 | case TPACPI_THERMAL_ACPI_UPDT: |
04cc862c HMH |
2619 | if (idx <= 7) { |
2620 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
2621 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
2622 | return -EIO; | |
78f81cc4 BD |
2623 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
2624 | return -EIO; | |
04cc862c HMH |
2625 | *value = (t - 2732) * 100; |
2626 | return 0; | |
78f81cc4 | 2627 | } |
04cc862c | 2628 | break; |
78f81cc4 | 2629 | |
efa27145 | 2630 | case TPACPI_THERMAL_ACPI_TMP07: |
04cc862c HMH |
2631 | if (idx <= 7) { |
2632 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
78f81cc4 BD |
2633 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
2634 | return -EIO; | |
04cc862c HMH |
2635 | *value = t * 1000; |
2636 | return 0; | |
78f81cc4 | 2637 | } |
04cc862c | 2638 | break; |
78f81cc4 | 2639 | |
efa27145 | 2640 | case TPACPI_THERMAL_NONE: |
a26f878a | 2641 | default: |
04cc862c HMH |
2642 | return -ENOSYS; |
2643 | } | |
2644 | ||
2645 | return -EINVAL; | |
2646 | } | |
2647 | ||
2648 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
2649 | { | |
2650 | int res, i; | |
2651 | int n; | |
2652 | ||
2653 | n = 8; | |
2654 | i = 0; | |
2655 | ||
2656 | if (!s) | |
2657 | return -EINVAL; | |
2658 | ||
2659 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
2660 | n = 16; | |
2661 | ||
2662 | for(i = 0 ; i < n; i++) { | |
2663 | res = thermal_get_sensor(i, &s->temp[i]); | |
2664 | if (res) | |
2665 | return res; | |
78f81cc4 | 2666 | } |
04cc862c HMH |
2667 | |
2668 | return n; | |
a26f878a HMH |
2669 | } |
2670 | ||
2671 | static int thermal_read(char *p) | |
2672 | { | |
2673 | int len = 0; | |
2674 | int n, i; | |
2675 | struct ibm_thermal_sensors_struct t; | |
2676 | ||
2677 | n = thermal_get_sensors(&t); | |
2678 | if (unlikely(n < 0)) | |
2679 | return n; | |
2680 | ||
2681 | len += sprintf(p + len, "temperatures:\t"); | |
2682 | ||
2683 | if (n > 0) { | |
2684 | for (i = 0; i < (n - 1); i++) | |
2685 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
2686 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
2687 | } else | |
2688 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
2689 | |
2690 | return len; | |
2691 | } | |
2692 | ||
a5763f22 HMH |
2693 | static struct ibm_struct thermal_driver_data = { |
2694 | .name = "thermal", | |
2695 | .read = thermal_read, | |
2c37aa4e | 2696 | .exit = thermal_exit, |
a5763f22 HMH |
2697 | }; |
2698 | ||
56b6aeb0 HMH |
2699 | /************************************************************************* |
2700 | * EC Dump subdriver | |
2701 | */ | |
2702 | ||
78f81cc4 BD |
2703 | static u8 ecdump_regs[256]; |
2704 | ||
2705 | static int ecdump_read(char *p) | |
2706 | { | |
2707 | int len = 0; | |
2708 | int i, j; | |
2709 | u8 v; | |
2710 | ||
2711 | len += sprintf(p + len, "EC " | |
2712 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
2713 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
2714 | for (i = 0; i < 256; i += 16) { | |
2715 | len += sprintf(p + len, "EC 0x%02x:", i); | |
2716 | for (j = 0; j < 16; j++) { | |
2717 | if (!acpi_ec_read(i + j, &v)) | |
2718 | break; | |
2719 | if (v != ecdump_regs[i + j]) | |
2720 | len += sprintf(p + len, " *%02x", v); | |
2721 | else | |
2722 | len += sprintf(p + len, " %02x", v); | |
2723 | ecdump_regs[i + j] = v; | |
2724 | } | |
2725 | len += sprintf(p + len, "\n"); | |
2726 | if (j != 16) | |
2727 | break; | |
2728 | } | |
2729 | ||
2730 | /* These are way too dangerous to advertise openly... */ | |
2731 | #if 0 | |
2732 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
2733 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
2734 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
2735 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
2736 | #endif | |
2737 | return len; | |
2738 | } | |
2739 | ||
2740 | static int ecdump_write(char *buf) | |
2741 | { | |
2742 | char *cmd; | |
2743 | int i, v; | |
2744 | ||
2745 | while ((cmd = next_cmd(&buf))) { | |
2746 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
2747 | /* i and v set */ | |
2748 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
2749 | /* i and v set */ | |
2750 | } else | |
2751 | return -EINVAL; | |
2752 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
2753 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
2754 | return -EIO; |
2755 | } else | |
2756 | return -EINVAL; | |
2757 | } | |
2758 | ||
2759 | return 0; | |
78f81cc4 BD |
2760 | } |
2761 | ||
a5763f22 HMH |
2762 | static struct ibm_struct ecdump_driver_data = { |
2763 | .name = "ecdump", | |
2764 | .read = ecdump_read, | |
2765 | .write = ecdump_write, | |
92641177 | 2766 | .flags.experimental = 1, |
a5763f22 HMH |
2767 | }; |
2768 | ||
56b6aeb0 HMH |
2769 | /************************************************************************* |
2770 | * Backlight/brightness subdriver | |
2771 | */ | |
2772 | ||
94954cc6 | 2773 | static struct backlight_device *ibm_backlight_device; |
56b6aeb0 HMH |
2774 | |
2775 | static struct backlight_ops ibm_backlight_data = { | |
2776 | .get_brightness = brightness_get, | |
2777 | .update_status = brightness_update_status, | |
2778 | }; | |
2779 | ||
a5763f22 | 2780 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
2781 | { |
2782 | int b; | |
2783 | ||
fe08bc4b HMH |
2784 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
2785 | ||
56b6aeb0 HMH |
2786 | b = brightness_get(NULL); |
2787 | if (b < 0) | |
2788 | return b; | |
2789 | ||
7d5a015e HMH |
2790 | ibm_backlight_device = backlight_device_register( |
2791 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
2792 | &ibm_backlight_data); | |
56b6aeb0 HMH |
2793 | if (IS_ERR(ibm_backlight_device)) { |
2794 | printk(IBM_ERR "Could not register backlight device\n"); | |
2795 | return PTR_ERR(ibm_backlight_device); | |
2796 | } | |
fe08bc4b | 2797 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 HMH |
2798 | |
2799 | ibm_backlight_device->props.max_brightness = 7; | |
2800 | ibm_backlight_device->props.brightness = b; | |
2801 | backlight_update_status(ibm_backlight_device); | |
2802 | ||
2803 | return 0; | |
2804 | } | |
2805 | ||
2806 | static void brightness_exit(void) | |
2807 | { | |
2808 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
2809 | vdbg_printk(TPACPI_DBG_EXIT, |
2810 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
2811 | backlight_device_unregister(ibm_backlight_device); |
2812 | ibm_backlight_device = NULL; | |
2813 | } | |
2814 | } | |
2815 | ||
2816 | static int brightness_update_status(struct backlight_device *bd) | |
2817 | { | |
2818 | return brightness_set( | |
2819 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
2820 | bd->props.power == FB_BLANK_UNBLANK) ? | |
2821 | bd->props.brightness : 0); | |
2822 | } | |
2823 | ||
8acb0250 HM |
2824 | static int brightness_get(struct backlight_device *bd) |
2825 | { | |
8d297264 HMH |
2826 | u8 level; |
2827 | if (!acpi_ec_read(brightness_offset, &level)) | |
2828 | return -EIO; | |
8acb0250 | 2829 | |
8d297264 | 2830 | level &= 0x7; |
fb87a811 | 2831 | |
8d297264 | 2832 | return level; |
8acb0250 HM |
2833 | } |
2834 | ||
8acb0250 | 2835 | static int brightness_set(int value) |
1da177e4 | 2836 | { |
78f81cc4 | 2837 | int cmos_cmd, inc, i; |
8acb0250 HM |
2838 | int current_value = brightness_get(NULL); |
2839 | ||
2840 | value &= 7; | |
2841 | ||
56b6aeb0 | 2842 | cmos_cmd = value > current_value ? TP_CMOS_BRIGHTNESS_UP : TP_CMOS_BRIGHTNESS_DOWN; |
8acb0250 HM |
2843 | inc = value > current_value ? 1 : -1; |
2844 | for (i = current_value; i != value; i += inc) { | |
c9bea99c | 2845 | if (issue_thinkpad_cmos_command(cmos_cmd)) |
8acb0250 HM |
2846 | return -EIO; |
2847 | if (!acpi_ec_write(brightness_offset, i + inc)) | |
2848 | return -EIO; | |
2849 | } | |
2850 | ||
2851 | return 0; | |
2852 | } | |
2853 | ||
56b6aeb0 HMH |
2854 | static int brightness_read(char *p) |
2855 | { | |
2856 | int len = 0; | |
2857 | int level; | |
2858 | ||
2859 | if ((level = brightness_get(NULL)) < 0) { | |
2860 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
2861 | } else { | |
2862 | len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); | |
2863 | len += sprintf(p + len, "commands:\tup, down\n"); | |
2864 | len += sprintf(p + len, "commands:\tlevel <level>" | |
2865 | " (<level> is 0-7)\n"); | |
2866 | } | |
2867 | ||
2868 | return len; | |
2869 | } | |
2870 | ||
8acb0250 HM |
2871 | static int brightness_write(char *buf) |
2872 | { | |
2873 | int level; | |
78f81cc4 | 2874 | int new_level; |
1da177e4 | 2875 | char *cmd; |
1da177e4 LT |
2876 | |
2877 | while ((cmd = next_cmd(&buf))) { | |
8acb0250 HM |
2878 | if ((level = brightness_get(NULL)) < 0) |
2879 | return level; | |
78f81cc4 BD |
2880 | level &= 7; |
2881 | ||
2882 | if (strlencmp(cmd, "up") == 0) { | |
2883 | new_level = level == 7 ? 7 : level + 1; | |
2884 | } else if (strlencmp(cmd, "down") == 0) { | |
2885 | new_level = level == 0 ? 0 : level - 1; | |
2886 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
2887 | new_level >= 0 && new_level <= 7) { | |
2888 | /* new_level set */ | |
2889 | } else | |
2890 | return -EINVAL; | |
2891 | ||
8acb0250 | 2892 | brightness_set(new_level); |
78f81cc4 BD |
2893 | } |
2894 | ||
2895 | return 0; | |
2896 | } | |
2897 | ||
a5763f22 HMH |
2898 | static struct ibm_struct brightness_driver_data = { |
2899 | .name = "brightness", | |
2900 | .read = brightness_read, | |
2901 | .write = brightness_write, | |
2902 | .exit = brightness_exit, | |
2903 | }; | |
2904 | ||
56b6aeb0 HMH |
2905 | /************************************************************************* |
2906 | * Volume subdriver | |
2907 | */ | |
fb87a811 | 2908 | |
78f81cc4 BD |
2909 | static int volume_read(char *p) |
2910 | { | |
2911 | int len = 0; | |
2912 | u8 level; | |
2913 | ||
2914 | if (!acpi_ec_read(volume_offset, &level)) { | |
2915 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
2916 | } else { | |
2917 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
2918 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
2919 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
2920 | len += sprintf(p + len, "commands:\tlevel <level>" | |
2921 | " (<level> is 0-15)\n"); | |
2922 | } | |
2923 | ||
2924 | return len; | |
2925 | } | |
2926 | ||
78f81cc4 BD |
2927 | static int volume_write(char *buf) |
2928 | { | |
2929 | int cmos_cmd, inc, i; | |
2930 | u8 level, mute; | |
2931 | int new_level, new_mute; | |
2932 | char *cmd; | |
2933 | ||
2934 | while ((cmd = next_cmd(&buf))) { | |
2935 | if (!acpi_ec_read(volume_offset, &level)) | |
2936 | return -EIO; | |
2937 | new_mute = mute = level & 0x40; | |
2938 | new_level = level = level & 0xf; | |
2939 | ||
2940 | if (strlencmp(cmd, "up") == 0) { | |
2941 | if (mute) | |
2942 | new_mute = 0; | |
2943 | else | |
2944 | new_level = level == 15 ? 15 : level + 1; | |
2945 | } else if (strlencmp(cmd, "down") == 0) { | |
2946 | if (mute) | |
2947 | new_mute = 0; | |
2948 | else | |
2949 | new_level = level == 0 ? 0 : level - 1; | |
2950 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
2951 | new_level >= 0 && new_level <= 15) { | |
2952 | /* new_level set */ | |
2953 | } else if (strlencmp(cmd, "mute") == 0) { | |
2954 | new_mute = 0x40; | |
1da177e4 LT |
2955 | } else |
2956 | return -EINVAL; | |
2957 | ||
78f81cc4 | 2958 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 2959 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
2960 | inc = new_level > level ? 1 : -1; |
2961 | ||
c9bea99c | 2962 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
2963 | !acpi_ec_write(volume_offset, level))) |
2964 | return -EIO; | |
2965 | ||
2966 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 2967 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
2968 | !acpi_ec_write(volume_offset, i + inc)) |
2969 | return -EIO; | |
2970 | ||
c9bea99c | 2971 | if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
2972 | !acpi_ec_write(volume_offset, |
2973 | new_level + mute))) | |
2974 | return -EIO; | |
2975 | } | |
2976 | ||
2977 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 2978 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 | 2979 | |
c9bea99c | 2980 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
2981 | !acpi_ec_write(volume_offset, level + new_mute)) |
2982 | return -EIO; | |
2983 | } | |
2984 | } | |
2985 | ||
2986 | return 0; | |
2987 | } | |
2988 | ||
a5763f22 HMH |
2989 | static struct ibm_struct volume_driver_data = { |
2990 | .name = "volume", | |
2991 | .read = volume_read, | |
2992 | .write = volume_write, | |
2993 | }; | |
56b6aeb0 HMH |
2994 | |
2995 | /************************************************************************* | |
2996 | * Fan subdriver | |
2997 | */ | |
2998 | ||
2999 | /* | |
3000 | * FAN ACCESS MODES | |
3001 | * | |
efa27145 | 3002 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
3003 | * ACPI GFAN method: returns fan level |
3004 | * | |
efa27145 | 3005 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 3006 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 3007 | * |
efa27145 | 3008 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
3009 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
3010 | * | |
f51d1a39 HMH |
3011 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
3012 | * it for writing. | |
56b6aeb0 | 3013 | * |
efa27145 | 3014 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
3015 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
3016 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
3017 | * |
3018 | * Fan speed changes of any sort (including those caused by the | |
3019 | * disengaged mode) are usually done slowly by the firmware as the | |
3020 | * maximum ammount of fan duty cycle change per second seems to be | |
3021 | * limited. | |
3022 | * | |
3023 | * Reading is not available if GFAN exists. | |
3024 | * Writing is not available if SFAN exists. | |
3025 | * | |
3026 | * Bits | |
3027 | * 7 automatic mode engaged; | |
3028 | * (default operation mode of the ThinkPad) | |
3029 | * fan level is ignored in this mode. | |
f51d1a39 | 3030 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 3031 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
3032 | * the tachometer while the fan controller ramps up |
3033 | * the speed (which can take up to a few *minutes*). | |
3034 | * Speeds up fan to 100% duty-cycle, which is far above | |
3035 | * the standard RPM levels. It is not impossible that | |
3036 | * it could cause hardware damage. | |
56b6aeb0 HMH |
3037 | * 5-3 unused in some models. Extra bits for fan level |
3038 | * in others, but still useless as all values above | |
3039 | * 7 map to the same speed as level 7 in these models. | |
3040 | * 2-0 fan level (0..7 usually) | |
3041 | * 0x00 = stop | |
3042 | * 0x07 = max (set when temperatures critical) | |
3043 | * Some ThinkPads may have other levels, see | |
efa27145 | 3044 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
3045 | * |
3046 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
3047 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
3048 | * does so, its initial value is meaningless (0x07). | |
3049 | * | |
3050 | * For firmware bugs, refer to: | |
3051 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
3052 | * | |
3053 | * ---- | |
3054 | * | |
3055 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
3056 | * Main fan tachometer reading (in RPM) | |
3057 | * | |
3058 | * This register is present on all ThinkPads with a new-style EC, and | |
3059 | * it is known not to be present on the A21m/e, and T22, as there is | |
3060 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
3061 | * ThinkPads from this same time period (and earlier) probably lack the | |
3062 | * tachometer as well. | |
3063 | * | |
3064 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
3065 | * was never fixed by IBM to report the EC firmware version string | |
3066 | * probably support the tachometer (like the early X models), so | |
3067 | * detecting it is quite hard. We need more data to know for sure. | |
3068 | * | |
3069 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
3070 | * might result. | |
3071 | * | |
f51d1a39 HMH |
3072 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
3073 | * mode. | |
56b6aeb0 HMH |
3074 | * |
3075 | * For firmware bugs, refer to: | |
3076 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
3077 | * | |
efa27145 | 3078 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
3079 | * ThinkPad X31, X40, X41. Not available in the X60. |
3080 | * | |
3081 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
3082 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
3083 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
3084 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
3085 | * | |
3086 | * The speeds are stored on handles | |
3087 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
3088 | * | |
3089 | * There are three default speed sets, acessible as handles: | |
3090 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
3091 | * | |
3092 | * ACPI DSDT switches which set is in use depending on various | |
3093 | * factors. | |
3094 | * | |
efa27145 | 3095 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
3096 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
3097 | * but the ACPI tables just mention level 7. | |
3098 | */ | |
3099 | ||
69ba91cb HMH |
3100 | static enum fan_status_access_mode fan_status_access_mode; |
3101 | static enum fan_control_access_mode fan_control_access_mode; | |
3102 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 3103 | |
778b4d74 | 3104 | static u8 fan_control_initial_status; |
fe98a52c | 3105 | static u8 fan_control_desired_level; |
778b4d74 | 3106 | |
25c68a33 | 3107 | static void fan_watchdog_fire(struct work_struct *ignored); |
16663a87 | 3108 | static int fan_watchdog_maxinterval; |
25c68a33 | 3109 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 3110 | |
56b6aeb0 HMH |
3111 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
3112 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
3113 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
3114 | ); /* all others */ | |
3115 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
3116 | "JFNS", /* 770x-JL */ | |
3117 | ); /* all others */ | |
3118 | ||
fe98a52c HMH |
3119 | /* |
3120 | * SYSFS fan layout: hwmon compatible (device) | |
3121 | * | |
3122 | * pwm*_enable: | |
3123 | * 0: "disengaged" mode | |
3124 | * 1: manual mode | |
3125 | * 2: native EC "auto" mode (recommended, hardware default) | |
3126 | * | |
3127 | * pwm*: set speed in manual mode, ignored otherwise. | |
3128 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
3129 | * interpolation. | |
3130 | * | |
3131 | * fan*_input: tachometer reading, RPM | |
3132 | * | |
3133 | * | |
3134 | * SYSFS fan layout: extensions | |
3135 | * | |
3136 | * fan_watchdog (driver): | |
3137 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
3138 | */ | |
3139 | ||
3140 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
3141 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
3142 | struct device_attribute *attr, | |
3143 | char *buf) | |
3144 | { | |
3145 | int res, mode; | |
3146 | u8 status; | |
3147 | ||
3148 | res = fan_get_status_safe(&status); | |
3149 | if (res) | |
3150 | return res; | |
3151 | ||
3152 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
3153 | if (status != fan_control_initial_status) { | |
3154 | tp_features.fan_ctrl_status_undef = 0; | |
3155 | } else { | |
3156 | /* Return most likely status. In fact, it | |
3157 | * might be the only possible status */ | |
3158 | status = TP_EC_FAN_AUTO; | |
3159 | } | |
3160 | } | |
3161 | ||
3162 | if (status & TP_EC_FAN_FULLSPEED) { | |
3163 | mode = 0; | |
3164 | } else if (status & TP_EC_FAN_AUTO) { | |
3165 | mode = 2; | |
3166 | } else | |
3167 | mode = 1; | |
3168 | ||
3169 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
3170 | } | |
3171 | ||
3172 | static ssize_t fan_pwm1_enable_store(struct device *dev, | |
3173 | struct device_attribute *attr, | |
3174 | const char *buf, size_t count) | |
3175 | { | |
3176 | unsigned long t; | |
3177 | int res, level; | |
3178 | ||
3179 | if (parse_strtoul(buf, 2, &t)) | |
3180 | return -EINVAL; | |
3181 | ||
3182 | switch (t) { | |
3183 | case 0: | |
3184 | level = TP_EC_FAN_FULLSPEED; | |
3185 | break; | |
3186 | case 1: | |
3187 | level = TPACPI_FAN_LAST_LEVEL; | |
3188 | break; | |
3189 | case 2: | |
3190 | level = TP_EC_FAN_AUTO; | |
3191 | break; | |
3192 | case 3: | |
3193 | /* reserved for software-controlled auto mode */ | |
3194 | return -ENOSYS; | |
3195 | default: | |
3196 | return -EINVAL; | |
3197 | } | |
3198 | ||
3199 | res = fan_set_level_safe(level); | |
c573ddb9 HMH |
3200 | if (res == -ENXIO) |
3201 | return -EINVAL; | |
3202 | else if (res < 0) | |
fe98a52c HMH |
3203 | return res; |
3204 | ||
3205 | fan_watchdog_reset(); | |
3206 | ||
3207 | return count; | |
3208 | } | |
3209 | ||
3210 | static struct device_attribute dev_attr_fan_pwm1_enable = | |
3211 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
3212 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
3213 | ||
3214 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
3215 | static ssize_t fan_pwm1_show(struct device *dev, | |
3216 | struct device_attribute *attr, | |
3217 | char *buf) | |
3218 | { | |
3219 | int res; | |
3220 | u8 status; | |
3221 | ||
3222 | res = fan_get_status_safe(&status); | |
3223 | if (res) | |
3224 | return res; | |
3225 | ||
3226 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
3227 | if (status != fan_control_initial_status) { | |
3228 | tp_features.fan_ctrl_status_undef = 0; | |
3229 | } else { | |
3230 | status = TP_EC_FAN_AUTO; | |
3231 | } | |
3232 | } | |
3233 | ||
3234 | if ((status & | |
3235 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
3236 | status = fan_control_desired_level; | |
3237 | ||
3238 | if (status > 7) | |
3239 | status = 7; | |
3240 | ||
3241 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); | |
3242 | } | |
3243 | ||
3244 | static ssize_t fan_pwm1_store(struct device *dev, | |
3245 | struct device_attribute *attr, | |
3246 | const char *buf, size_t count) | |
3247 | { | |
3248 | unsigned long s; | |
3249 | int rc; | |
3250 | u8 status, newlevel; | |
3251 | ||
3252 | if (parse_strtoul(buf, 255, &s)) | |
3253 | return -EINVAL; | |
3254 | ||
3255 | /* scale down from 0-255 to 0-7 */ | |
3256 | newlevel = (s >> 5) & 0x07; | |
3257 | ||
3258 | rc = mutex_lock_interruptible(&fan_mutex); | |
3259 | if (rc < 0) | |
3260 | return rc; | |
3261 | ||
3262 | rc = fan_get_status(&status); | |
3263 | if (!rc && (status & | |
3264 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
3265 | rc = fan_set_level(newlevel); | |
c573ddb9 HMH |
3266 | if (rc == -ENXIO) |
3267 | rc = -EINVAL; | |
3268 | else if (!rc) { | |
fe98a52c | 3269 | fan_update_desired_level(newlevel); |
ca4ac2f4 HMH |
3270 | fan_watchdog_reset(); |
3271 | } | |
fe98a52c HMH |
3272 | } |
3273 | ||
3274 | mutex_unlock(&fan_mutex); | |
3275 | return (rc)? rc : count; | |
3276 | } | |
3277 | ||
3278 | static struct device_attribute dev_attr_fan_pwm1 = | |
3279 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
3280 | fan_pwm1_show, fan_pwm1_store); | |
3281 | ||
3282 | /* sysfs fan fan1_input ------------------------------------------------ */ | |
3283 | static ssize_t fan_fan1_input_show(struct device *dev, | |
3284 | struct device_attribute *attr, | |
3285 | char *buf) | |
3286 | { | |
3287 | int res; | |
3288 | unsigned int speed; | |
3289 | ||
3290 | res = fan_get_speed(&speed); | |
3291 | if (res < 0) | |
3292 | return res; | |
3293 | ||
3294 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
3295 | } | |
3296 | ||
3297 | static struct device_attribute dev_attr_fan_fan1_input = | |
3298 | __ATTR(fan1_input, S_IRUGO, | |
3299 | fan_fan1_input_show, NULL); | |
3300 | ||
3301 | /* sysfs fan fan_watchdog (driver) ------------------------------------- */ | |
3302 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
3303 | char *buf) | |
3304 | { | |
3305 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
3306 | } | |
3307 | ||
3308 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, | |
3309 | const char *buf, size_t count) | |
3310 | { | |
3311 | unsigned long t; | |
3312 | ||
3313 | if (parse_strtoul(buf, 120, &t)) | |
3314 | return -EINVAL; | |
3315 | ||
ecf2a80a HMH |
3316 | if (!fan_control_allowed) |
3317 | return -EPERM; | |
3318 | ||
fe98a52c HMH |
3319 | fan_watchdog_maxinterval = t; |
3320 | fan_watchdog_reset(); | |
3321 | ||
3322 | return count; | |
3323 | } | |
3324 | ||
3325 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
3326 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
3327 | ||
3328 | /* --------------------------------------------------------------------- */ | |
3329 | static struct attribute *fan_attributes[] = { | |
3330 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
3331 | &dev_attr_fan_fan1_input.attr, | |
3332 | NULL | |
3333 | }; | |
3334 | ||
3335 | static const struct attribute_group fan_attr_group = { | |
3336 | .attrs = fan_attributes, | |
3337 | }; | |
3338 | ||
a5763f22 | 3339 | static int __init fan_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3340 | { |
fe98a52c HMH |
3341 | int rc; |
3342 | ||
fe08bc4b HMH |
3343 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); |
3344 | ||
40ca9fdf | 3345 | mutex_init(&fan_mutex); |
efa27145 HMH |
3346 | fan_status_access_mode = TPACPI_FAN_NONE; |
3347 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
69ba91cb | 3348 | fan_control_commands = 0; |
16663a87 | 3349 | fan_watchdog_maxinterval = 0; |
d8fd94d9 | 3350 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 3351 | fan_control_desired_level = 7; |
78f81cc4 | 3352 | |
8d376cd6 HMH |
3353 | IBM_ACPIHANDLE_INIT(fans); |
3354 | IBM_ACPIHANDLE_INIT(gfan); | |
3355 | IBM_ACPIHANDLE_INIT(sfan); | |
5fba344c | 3356 | |
78f81cc4 BD |
3357 | if (gfan_handle) { |
3358 | /* 570, 600e/x, 770e, 770x */ | |
efa27145 | 3359 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; |
69ba91cb HMH |
3360 | } else { |
3361 | /* all other ThinkPads: note that even old-style | |
3362 | * ThinkPad ECs supports the fan control register */ | |
778b4d74 HMH |
3363 | if (likely(acpi_ec_read(fan_status_offset, |
3364 | &fan_control_initial_status))) { | |
efa27145 | 3365 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; |
778b4d74 HMH |
3366 | |
3367 | /* In some ThinkPads, neither the EC nor the ACPI | |
3368 | * DSDT initialize the fan status, and it ends up | |
3369 | * being set to 0x07 when it *could* be either | |
3370 | * 0x07 or 0x80. | |
3371 | * | |
3372 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
3373 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
3374 | * to be buggy. */ | |
3375 | if (fan_control_initial_status == 0x07 && | |
3376 | ibm_thinkpad_ec_found && | |
3377 | ((ibm_thinkpad_ec_found[0] == '1' && | |
3378 | ibm_thinkpad_ec_found[1] == 'Y') || | |
3379 | (ibm_thinkpad_ec_found[0] == '7' && | |
3380 | (ibm_thinkpad_ec_found[1] == '6' || | |
3381 | ibm_thinkpad_ec_found[1] == '8' || | |
3382 | ibm_thinkpad_ec_found[1] == '0')) | |
3383 | )) { | |
3384 | printk(IBM_NOTICE | |
3385 | "fan_init: initial fan status is " | |
3386 | "unknown, assuming it is in auto " | |
3387 | "mode\n"); | |
d8fd94d9 | 3388 | tp_features.fan_ctrl_status_undef = 1; |
778b4d74 | 3389 | } |
69ba91cb HMH |
3390 | } else { |
3391 | printk(IBM_ERR | |
3392 | "ThinkPad ACPI EC access misbehaving, " | |
3393 | "fan status and control unavailable\n"); | |
5fba344c | 3394 | return 1; |
69ba91cb HMH |
3395 | } |
3396 | } | |
78f81cc4 | 3397 | |
69ba91cb HMH |
3398 | if (sfan_handle) { |
3399 | /* 570, 770x-JL */ | |
efa27145 | 3400 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; |
1c6a334e | 3401 | fan_control_commands |= |
efa27145 | 3402 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; |
78f81cc4 | 3403 | } else { |
69ba91cb HMH |
3404 | if (!gfan_handle) { |
3405 | /* gfan without sfan means no fan control */ | |
3406 | /* all other models implement TP EC 0x2f control */ | |
3407 | ||
3408 | if (fans_handle) { | |
a8b7a662 | 3409 | /* X31, X40, X41 */ |
69ba91cb | 3410 | fan_control_access_mode = |
efa27145 | 3411 | TPACPI_FAN_WR_ACPI_FANS; |
69ba91cb | 3412 | fan_control_commands |= |
efa27145 HMH |
3413 | TPACPI_FAN_CMD_SPEED | |
3414 | TPACPI_FAN_CMD_LEVEL | | |
3415 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb | 3416 | } else { |
efa27145 | 3417 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; |
a12095c2 | 3418 | fan_control_commands |= |
efa27145 HMH |
3419 | TPACPI_FAN_CMD_LEVEL | |
3420 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
3421 | } |
3422 | } | |
3423 | } | |
3424 | ||
fe08bc4b HMH |
3425 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
3426 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
3427 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
3428 | fan_status_access_mode, fan_control_access_mode); | |
3429 | ||
ecf2a80a HMH |
3430 | /* fan control master switch */ |
3431 | if (!fan_control_allowed) { | |
3432 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
3433 | fan_control_commands = 0; | |
3434 | dbg_printk(TPACPI_DBG_INIT, | |
3435 | "fan control features disabled by parameter\n"); | |
3436 | } | |
3437 | ||
fe98a52c HMH |
3438 | /* update fan_control_desired_level */ |
3439 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
3440 | fan_get_status_safe(NULL); | |
3441 | ||
3442 | if (fan_status_access_mode != TPACPI_FAN_NONE || | |
3443 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
3444 | rc = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
3445 | &fan_attr_group); | |
3446 | if (!(rc < 0)) | |
3447 | rc = driver_create_file(&tpacpi_pdriver.driver, | |
3448 | &driver_attr_fan_watchdog); | |
3449 | if (rc < 0) | |
3450 | return rc; | |
3451 | return 0; | |
3452 | } else | |
3453 | return 1; | |
3454 | } | |
3455 | ||
3456 | /* | |
3457 | * Call with fan_mutex held | |
3458 | */ | |
3459 | static void fan_update_desired_level(u8 status) | |
3460 | { | |
3461 | if ((status & | |
3462 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
3463 | if (status > 7) | |
3464 | fan_control_desired_level = 7; | |
3465 | else | |
3466 | fan_control_desired_level = status; | |
3467 | } | |
69ba91cb | 3468 | } |
78f81cc4 | 3469 | |
c52f0aa5 | 3470 | static int fan_get_status(u8 *status) |
78f81cc4 | 3471 | { |
c52f0aa5 | 3472 | u8 s; |
78f81cc4 | 3473 | |
a8b7a662 | 3474 | /* TODO: |
efa27145 | 3475 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ |
a8b7a662 | 3476 | |
3ef8a609 | 3477 | switch (fan_status_access_mode) { |
efa27145 | 3478 | case TPACPI_FAN_RD_ACPI_GFAN: |
78f81cc4 | 3479 | /* 570, 600e/x, 770e, 770x */ |
c52f0aa5 HMH |
3480 | |
3481 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) | |
1da177e4 | 3482 | return -EIO; |
78f81cc4 | 3483 | |
c52f0aa5 HMH |
3484 | if (likely(status)) |
3485 | *status = s & 0x07; | |
3ef8a609 HMH |
3486 | |
3487 | break; | |
3488 | ||
efa27145 | 3489 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 3490 | /* all except 570, 600e/x, 770e, 770x */ |
c52f0aa5 | 3491 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
3ef8a609 | 3492 | return -EIO; |
78f81cc4 | 3493 | |
c52f0aa5 HMH |
3494 | if (likely(status)) |
3495 | *status = s; | |
3496 | ||
3497 | break; | |
3498 | ||
3499 | default: | |
3500 | return -ENXIO; | |
78f81cc4 BD |
3501 | } |
3502 | ||
c52f0aa5 HMH |
3503 | return 0; |
3504 | } | |
3505 | ||
fe98a52c HMH |
3506 | static int fan_get_status_safe(u8 *status) |
3507 | { | |
3508 | int rc; | |
3509 | u8 s; | |
3510 | ||
3511 | rc = mutex_lock_interruptible(&fan_mutex); | |
3512 | if (rc < 0) | |
3513 | return rc; | |
3514 | rc = fan_get_status(&s); | |
3515 | if (!rc) | |
3516 | fan_update_desired_level(s); | |
3517 | mutex_unlock(&fan_mutex); | |
3518 | ||
3519 | if (status) | |
3520 | *status = s; | |
3521 | ||
3522 | return rc; | |
3523 | } | |
3524 | ||
56b6aeb0 HMH |
3525 | static void fan_exit(void) |
3526 | { | |
99fba3f8 | 3527 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n"); |
fe98a52c HMH |
3528 | |
3529 | /* FIXME: can we really do this unconditionally? */ | |
3530 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, &fan_attr_group); | |
3531 | driver_remove_file(&tpacpi_pdriver.driver, &driver_attr_fan_watchdog); | |
3532 | ||
56b6aeb0 HMH |
3533 | cancel_delayed_work(&fan_watchdog_task); |
3534 | flush_scheduled_work(); | |
3535 | } | |
3536 | ||
c52f0aa5 HMH |
3537 | static int fan_get_speed(unsigned int *speed) |
3538 | { | |
3539 | u8 hi, lo; | |
3540 | ||
3541 | switch (fan_status_access_mode) { | |
efa27145 | 3542 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 3543 | /* all except 570, 600e/x, 770e, 770x */ |
3ef8a609 HMH |
3544 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
3545 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
3546 | return -EIO; | |
3ef8a609 | 3547 | |
c52f0aa5 HMH |
3548 | if (likely(speed)) |
3549 | *speed = (hi << 8) | lo; | |
3550 | ||
3551 | break; | |
3552 | ||
3553 | default: | |
3554 | return -ENXIO; | |
3555 | } | |
3556 | ||
3557 | return 0; | |
3558 | } | |
3559 | ||
56b6aeb0 | 3560 | static void fan_watchdog_fire(struct work_struct *ignored) |
16663a87 | 3561 | { |
99fba3f8 HMH |
3562 | int rc; |
3563 | ||
56b6aeb0 | 3564 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); |
99fba3f8 HMH |
3565 | rc = fan_set_enable(); |
3566 | if (rc < 0) { | |
3567 | printk(IBM_ERR "fan watchdog: error %d while enabling fan, " | |
3568 | "will try again later...\n", -rc); | |
56b6aeb0 HMH |
3569 | /* reschedule for later */ |
3570 | fan_watchdog_reset(); | |
3571 | } | |
16663a87 HMH |
3572 | } |
3573 | ||
3574 | static void fan_watchdog_reset(void) | |
3575 | { | |
94954cc6 | 3576 | static int fan_watchdog_active; |
16663a87 | 3577 | |
4985cd0a HMH |
3578 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
3579 | return; | |
3580 | ||
16663a87 HMH |
3581 | if (fan_watchdog_active) |
3582 | cancel_delayed_work(&fan_watchdog_task); | |
3583 | ||
3584 | if (fan_watchdog_maxinterval > 0) { | |
3585 | fan_watchdog_active = 1; | |
3586 | if (!schedule_delayed_work(&fan_watchdog_task, | |
3587 | msecs_to_jiffies(fan_watchdog_maxinterval | |
3588 | * 1000))) { | |
3589 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
3590 | "watchdog will not trigger\n"); | |
3591 | } | |
3592 | } else | |
3593 | fan_watchdog_active = 0; | |
3594 | } | |
3595 | ||
18ad7996 | 3596 | static int fan_set_level(int level) |
78f81cc4 | 3597 | { |
ecf2a80a HMH |
3598 | if (!fan_control_allowed) |
3599 | return -EPERM; | |
3600 | ||
18ad7996 | 3601 | switch (fan_control_access_mode) { |
efa27145 | 3602 | case TPACPI_FAN_WR_ACPI_SFAN: |
18ad7996 | 3603 | if (level >= 0 && level <= 7) { |
fe98a52c | 3604 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
78f81cc4 | 3605 | return -EIO; |
18ad7996 HMH |
3606 | } else |
3607 | return -EINVAL; | |
3608 | break; | |
3609 | ||
efa27145 HMH |
3610 | case TPACPI_FAN_WR_ACPI_FANS: |
3611 | case TPACPI_FAN_WR_TPEC: | |
3612 | if ((level != TP_EC_FAN_AUTO) && | |
3613 | (level != TP_EC_FAN_FULLSPEED) && | |
a12095c2 HMH |
3614 | ((level < 0) || (level > 7))) |
3615 | return -EINVAL; | |
3616 | ||
eaa7571b HMH |
3617 | /* safety net should the EC not support AUTO |
3618 | * or FULLSPEED mode bits and just ignore them */ | |
3619 | if (level & TP_EC_FAN_FULLSPEED) | |
3620 | level |= 7; /* safety min speed 7 */ | |
3621 | else if (level & TP_EC_FAN_FULLSPEED) | |
3622 | level |= 4; /* safety min speed 4 */ | |
3623 | ||
fe98a52c | 3624 | if (!acpi_ec_write(fan_status_offset, level)) |
a12095c2 | 3625 | return -EIO; |
778b4d74 | 3626 | else |
d8fd94d9 | 3627 | tp_features.fan_ctrl_status_undef = 0; |
a12095c2 HMH |
3628 | break; |
3629 | ||
18ad7996 HMH |
3630 | default: |
3631 | return -ENXIO; | |
3632 | } | |
3633 | return 0; | |
3634 | } | |
3635 | ||
fe98a52c HMH |
3636 | static int fan_set_level_safe(int level) |
3637 | { | |
3638 | int rc; | |
3639 | ||
ecf2a80a HMH |
3640 | if (!fan_control_allowed) |
3641 | return -EPERM; | |
3642 | ||
fe98a52c HMH |
3643 | rc = mutex_lock_interruptible(&fan_mutex); |
3644 | if (rc < 0) | |
3645 | return rc; | |
3646 | ||
3647 | if (level == TPACPI_FAN_LAST_LEVEL) | |
3648 | level = fan_control_desired_level; | |
3649 | ||
3650 | rc = fan_set_level(level); | |
3651 | if (!rc) | |
3652 | fan_update_desired_level(level); | |
3653 | ||
3654 | mutex_unlock(&fan_mutex); | |
3655 | return rc; | |
3656 | } | |
3657 | ||
18ad7996 HMH |
3658 | static int fan_set_enable(void) |
3659 | { | |
1c6a334e HMH |
3660 | u8 s; |
3661 | int rc; | |
3662 | ||
ecf2a80a HMH |
3663 | if (!fan_control_allowed) |
3664 | return -EPERM; | |
3665 | ||
40ca9fdf HMH |
3666 | rc = mutex_lock_interruptible(&fan_mutex); |
3667 | if (rc < 0) | |
3668 | return rc; | |
3669 | ||
18ad7996 | 3670 | switch (fan_control_access_mode) { |
efa27145 HMH |
3671 | case TPACPI_FAN_WR_ACPI_FANS: |
3672 | case TPACPI_FAN_WR_TPEC: | |
40ca9fdf HMH |
3673 | rc = fan_get_status(&s); |
3674 | if (rc < 0) | |
3675 | break; | |
1c6a334e HMH |
3676 | |
3677 | /* Don't go out of emergency fan mode */ | |
eaa7571b HMH |
3678 | if (s != 7) { |
3679 | s &= 0x07; | |
3680 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
3681 | } | |
1c6a334e HMH |
3682 | |
3683 | if (!acpi_ec_write(fan_status_offset, s)) | |
40ca9fdf HMH |
3684 | rc = -EIO; |
3685 | else { | |
d8fd94d9 | 3686 | tp_features.fan_ctrl_status_undef = 0; |
40ca9fdf HMH |
3687 | rc = 0; |
3688 | } | |
1c6a334e HMH |
3689 | break; |
3690 | ||
efa27145 | 3691 | case TPACPI_FAN_WR_ACPI_SFAN: |
40ca9fdf HMH |
3692 | rc = fan_get_status(&s); |
3693 | if (rc < 0) | |
3694 | break; | |
1c6a334e HMH |
3695 | |
3696 | s &= 0x07; | |
3697 | ||
3698 | /* Set fan to at least level 4 */ | |
eaa7571b | 3699 | s |= 4; |
1c6a334e HMH |
3700 | |
3701 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) | |
40ca9fdf HMH |
3702 | rc= -EIO; |
3703 | else | |
3704 | rc = 0; | |
18ad7996 HMH |
3705 | break; |
3706 | ||
3707 | default: | |
40ca9fdf | 3708 | rc = -ENXIO; |
18ad7996 | 3709 | } |
40ca9fdf HMH |
3710 | |
3711 | mutex_unlock(&fan_mutex); | |
3712 | return rc; | |
18ad7996 HMH |
3713 | } |
3714 | ||
3715 | static int fan_set_disable(void) | |
3716 | { | |
40ca9fdf HMH |
3717 | int rc; |
3718 | ||
ecf2a80a HMH |
3719 | if (!fan_control_allowed) |
3720 | return -EPERM; | |
3721 | ||
40ca9fdf HMH |
3722 | rc = mutex_lock_interruptible(&fan_mutex); |
3723 | if (rc < 0) | |
3724 | return rc; | |
3725 | ||
3726 | rc = 0; | |
18ad7996 | 3727 | switch (fan_control_access_mode) { |
efa27145 HMH |
3728 | case TPACPI_FAN_WR_ACPI_FANS: |
3729 | case TPACPI_FAN_WR_TPEC: | |
18ad7996 | 3730 | if (!acpi_ec_write(fan_status_offset, 0x00)) |
40ca9fdf | 3731 | rc = -EIO; |
fe98a52c HMH |
3732 | else { |
3733 | fan_control_desired_level = 0; | |
d8fd94d9 | 3734 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 3735 | } |
18ad7996 HMH |
3736 | break; |
3737 | ||
efa27145 | 3738 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e | 3739 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) |
40ca9fdf | 3740 | rc = -EIO; |
fe98a52c HMH |
3741 | else |
3742 | fan_control_desired_level = 0; | |
1c6a334e HMH |
3743 | break; |
3744 | ||
18ad7996 | 3745 | default: |
40ca9fdf | 3746 | rc = -ENXIO; |
18ad7996 | 3747 | } |
40ca9fdf | 3748 | |
fe98a52c | 3749 | |
40ca9fdf HMH |
3750 | mutex_unlock(&fan_mutex); |
3751 | return rc; | |
56b6aeb0 HMH |
3752 | } |
3753 | ||
3754 | static int fan_set_speed(int speed) | |
3755 | { | |
40ca9fdf HMH |
3756 | int rc; |
3757 | ||
ecf2a80a HMH |
3758 | if (!fan_control_allowed) |
3759 | return -EPERM; | |
3760 | ||
40ca9fdf HMH |
3761 | rc = mutex_lock_interruptible(&fan_mutex); |
3762 | if (rc < 0) | |
3763 | return rc; | |
3764 | ||
3765 | rc = 0; | |
56b6aeb0 | 3766 | switch (fan_control_access_mode) { |
efa27145 | 3767 | case TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
3768 | if (speed >= 0 && speed <= 65535) { |
3769 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
3770 | speed, speed, speed)) | |
40ca9fdf | 3771 | rc = -EIO; |
56b6aeb0 | 3772 | } else |
40ca9fdf | 3773 | rc = -EINVAL; |
56b6aeb0 HMH |
3774 | break; |
3775 | ||
3776 | default: | |
40ca9fdf | 3777 | rc = -ENXIO; |
56b6aeb0 | 3778 | } |
40ca9fdf HMH |
3779 | |
3780 | mutex_unlock(&fan_mutex); | |
3781 | return rc; | |
56b6aeb0 HMH |
3782 | } |
3783 | ||
3784 | static int fan_read(char *p) | |
3785 | { | |
3786 | int len = 0; | |
3787 | int rc; | |
3788 | u8 status; | |
3789 | unsigned int speed = 0; | |
3790 | ||
3791 | switch (fan_status_access_mode) { | |
efa27145 | 3792 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 3793 | /* 570, 600e/x, 770e, 770x */ |
fe98a52c | 3794 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
3795 | return rc; |
3796 | ||
3797 | len += sprintf(p + len, "status:\t\t%s\n" | |
3798 | "level:\t\t%d\n", | |
3799 | (status != 0) ? "enabled" : "disabled", status); | |
3800 | break; | |
3801 | ||
efa27145 | 3802 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 3803 | /* all except 570, 600e/x, 770e, 770x */ |
fe98a52c | 3804 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
3805 | return rc; |
3806 | ||
d8fd94d9 | 3807 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 3808 | if (status != fan_control_initial_status) |
d8fd94d9 | 3809 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
3810 | else |
3811 | /* Return most likely status. In fact, it | |
3812 | * might be the only possible status */ | |
efa27145 | 3813 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
3814 | } |
3815 | ||
3816 | len += sprintf(p + len, "status:\t\t%s\n", | |
3817 | (status != 0) ? "enabled" : "disabled"); | |
3818 | ||
56b6aeb0 HMH |
3819 | if ((rc = fan_get_speed(&speed)) < 0) |
3820 | return rc; | |
3821 | ||
3822 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
3823 | ||
efa27145 | 3824 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
3825 | /* Disengaged mode takes precedence */ |
3826 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 3827 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
3828 | len += sprintf(p + len, "level:\t\tauto\n"); |
3829 | else | |
3830 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
3831 | break; | |
3832 | ||
efa27145 | 3833 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
3834 | default: |
3835 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3836 | } | |
3837 | ||
efa27145 | 3838 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
3839 | len += sprintf(p + len, "commands:\tlevel <level>"); |
3840 | ||
3841 | switch (fan_control_access_mode) { | |
efa27145 | 3842 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
3843 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
3844 | break; | |
3845 | ||
3846 | default: | |
3847 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 3848 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
3849 | break; |
3850 | } | |
3851 | } | |
18ad7996 | 3852 | |
efa27145 | 3853 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
3854 | len += sprintf(p + len, "commands:\tenable, disable\n" |
3855 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
3856 | "1-120 (seconds))\n"); | |
1da177e4 | 3857 | |
efa27145 | 3858 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
3859 | len += sprintf(p + len, "commands:\tspeed <speed>" |
3860 | " (<speed> is 0-65535)\n"); | |
3861 | ||
3862 | return len; | |
78f81cc4 BD |
3863 | } |
3864 | ||
18ad7996 HMH |
3865 | static int fan_write_cmd_level(const char *cmd, int *rc) |
3866 | { | |
3867 | int level; | |
3868 | ||
a12095c2 | 3869 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 3870 | level = TP_EC_FAN_AUTO; |
fe98a52c HMH |
3871 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
3872 | (strlencmp(cmd, "level full-speed") == 0)) | |
efa27145 | 3873 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 3874 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
3875 | return 0; |
3876 | ||
fe98a52c | 3877 | if ((*rc = fan_set_level_safe(level)) == -ENXIO) |
18ad7996 HMH |
3878 | printk(IBM_ERR "level command accepted for unsupported " |
3879 | "access mode %d", fan_control_access_mode); | |
3880 | ||
3881 | return 1; | |
3882 | } | |
3883 | ||
3884 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
3885 | { | |
3886 | if (strlencmp(cmd, "enable") != 0) | |
3887 | return 0; | |
3888 | ||
3889 | if ((*rc = fan_set_enable()) == -ENXIO) | |
3890 | printk(IBM_ERR "enable command accepted for unsupported " | |
3891 | "access mode %d", fan_control_access_mode); | |
3892 | ||
3893 | return 1; | |
3894 | } | |
3895 | ||
3896 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
3897 | { | |
3898 | if (strlencmp(cmd, "disable") != 0) | |
3899 | return 0; | |
3900 | ||
3901 | if ((*rc = fan_set_disable()) == -ENXIO) | |
3902 | printk(IBM_ERR "disable command accepted for unsupported " | |
3903 | "access mode %d", fan_control_access_mode); | |
3904 | ||
3905 | return 1; | |
3906 | } | |
3907 | ||
3908 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
3909 | { | |
3910 | int speed; | |
3911 | ||
a8b7a662 HMH |
3912 | /* TODO: |
3913 | * Support speed <low> <medium> <high> ? */ | |
3914 | ||
18ad7996 HMH |
3915 | if (sscanf(cmd, "speed %d", &speed) != 1) |
3916 | return 0; | |
3917 | ||
3918 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
3919 | printk(IBM_ERR "speed command accepted for unsupported " | |
3920 | "access mode %d", fan_control_access_mode); | |
3921 | ||
3922 | return 1; | |
3923 | } | |
3924 | ||
16663a87 HMH |
3925 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
3926 | { | |
3927 | int interval; | |
3928 | ||
3929 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
3930 | return 0; | |
3931 | ||
3932 | if (interval < 0 || interval > 120) | |
3933 | *rc = -EINVAL; | |
3934 | else | |
3935 | fan_watchdog_maxinterval = interval; | |
3936 | ||
3937 | return 1; | |
3938 | } | |
3939 | ||
18ad7996 HMH |
3940 | static int fan_write(char *buf) |
3941 | { | |
3942 | char *cmd; | |
3943 | int rc = 0; | |
3944 | ||
3945 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 3946 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 3947 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 3948 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 3949 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
3950 | fan_write_cmd_disable(cmd, &rc) || |
3951 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 3952 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
3953 | fan_write_cmd_speed(cmd, &rc)) |
3954 | ) | |
3955 | rc = -EINVAL; | |
16663a87 HMH |
3956 | else if (!rc) |
3957 | fan_watchdog_reset(); | |
18ad7996 HMH |
3958 | } |
3959 | ||
3960 | return rc; | |
3961 | } | |
3962 | ||
a5763f22 HMH |
3963 | static struct ibm_struct fan_driver_data = { |
3964 | .name = "fan", | |
3965 | .read = fan_read, | |
3966 | .write = fan_write, | |
3967 | .exit = fan_exit, | |
a5763f22 HMH |
3968 | }; |
3969 | ||
56b6aeb0 HMH |
3970 | /**************************************************************************** |
3971 | **************************************************************************** | |
3972 | * | |
3973 | * Infrastructure | |
3974 | * | |
3975 | **************************************************************************** | |
3976 | ****************************************************************************/ | |
3977 | ||
3978 | /* /proc support */ | |
94954cc6 | 3979 | static struct proc_dir_entry *proc_dir; |
16663a87 | 3980 | |
56b6aeb0 | 3981 | /* Subdriver registry */ |
a5763f22 HMH |
3982 | static LIST_HEAD(tpacpi_all_drivers); |
3983 | ||
1da177e4 | 3984 | |
56b6aeb0 HMH |
3985 | /* |
3986 | * Module and infrastructure proble, init and exit handling | |
3987 | */ | |
1da177e4 | 3988 | |
fe08bc4b | 3989 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 3990 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 3991 | { |
a5763f22 | 3992 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 3993 | |
a5763f22 | 3994 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
3995 | } |
3996 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
3997 | ||
a5763f22 | 3998 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
3999 | { |
4000 | int ret; | |
a5763f22 | 4001 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
4002 | struct proc_dir_entry *entry; |
4003 | ||
a5763f22 HMH |
4004 | BUG_ON(ibm == NULL); |
4005 | ||
4006 | INIT_LIST_HEAD(&ibm->all_drivers); | |
4007 | ||
92641177 | 4008 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
4009 | return 0; |
4010 | ||
fe08bc4b HMH |
4011 | dbg_printk(TPACPI_DBG_INIT, |
4012 | "probing for %s\n", ibm->name); | |
4013 | ||
a5763f22 HMH |
4014 | if (iibm->init) { |
4015 | ret = iibm->init(iibm); | |
5fba344c HMH |
4016 | if (ret > 0) |
4017 | return 0; /* probe failed */ | |
4018 | if (ret) | |
1da177e4 | 4019 | return ret; |
a5763f22 | 4020 | |
92641177 | 4021 | ibm->flags.init_called = 1; |
1da177e4 LT |
4022 | } |
4023 | ||
8d376cd6 HMH |
4024 | if (ibm->acpi) { |
4025 | if (ibm->acpi->hid) { | |
4026 | ret = register_tpacpi_subdriver(ibm); | |
4027 | if (ret) | |
4028 | goto err_out; | |
4029 | } | |
5fba344c | 4030 | |
8d376cd6 HMH |
4031 | if (ibm->acpi->notify) { |
4032 | ret = setup_acpi_notify(ibm); | |
4033 | if (ret == -ENODEV) { | |
4034 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
4035 | ibm->name); | |
4036 | ret = 0; | |
4037 | goto err_out; | |
4038 | } | |
4039 | if (ret < 0) | |
4040 | goto err_out; | |
5fba344c | 4041 | } |
5fba344c HMH |
4042 | } |
4043 | ||
fe08bc4b HMH |
4044 | dbg_printk(TPACPI_DBG_INIT, |
4045 | "%s installed\n", ibm->name); | |
4046 | ||
78f81cc4 BD |
4047 | if (ibm->read) { |
4048 | entry = create_proc_entry(ibm->name, | |
4049 | S_IFREG | S_IRUGO | S_IWUSR, | |
4050 | proc_dir); | |
4051 | if (!entry) { | |
4052 | printk(IBM_ERR "unable to create proc entry %s\n", | |
4053 | ibm->name); | |
5fba344c HMH |
4054 | ret = -ENODEV; |
4055 | goto err_out; | |
78f81cc4 BD |
4056 | } |
4057 | entry->owner = THIS_MODULE; | |
4058 | entry->data = ibm; | |
8d376cd6 | 4059 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 4060 | if (ibm->write) |
8d376cd6 | 4061 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 4062 | ibm->flags.proc_created = 1; |
78f81cc4 | 4063 | } |
1da177e4 | 4064 | |
a5763f22 HMH |
4065 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
4066 | ||
1da177e4 | 4067 | return 0; |
5fba344c HMH |
4068 | |
4069 | err_out: | |
fe08bc4b HMH |
4070 | dbg_printk(TPACPI_DBG_INIT, |
4071 | "%s: at error exit path with result %d\n", | |
4072 | ibm->name, ret); | |
4073 | ||
5fba344c HMH |
4074 | ibm_exit(ibm); |
4075 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
4076 | } |
4077 | ||
4078 | static void ibm_exit(struct ibm_struct *ibm) | |
4079 | { | |
fe08bc4b | 4080 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); |
a5763f22 HMH |
4081 | |
4082 | list_del_init(&ibm->all_drivers); | |
4083 | ||
8d376cd6 | 4084 | if (ibm->flags.acpi_notify_installed) { |
fe08bc4b HMH |
4085 | dbg_printk(TPACPI_DBG_EXIT, |
4086 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8d376cd6 HMH |
4087 | BUG_ON(!ibm->acpi); |
4088 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
4089 | ibm->acpi->type, | |
4090 | dispatch_acpi_notify); | |
4091 | ibm->flags.acpi_notify_installed = 0; | |
4092 | ibm->flags.acpi_notify_installed = 0; | |
5fba344c | 4093 | } |
1da177e4 | 4094 | |
92641177 | 4095 | if (ibm->flags.proc_created) { |
fe08bc4b HMH |
4096 | dbg_printk(TPACPI_DBG_EXIT, |
4097 | "%s: remove_proc_entry\n", ibm->name); | |
1da177e4 | 4098 | remove_proc_entry(ibm->name, proc_dir); |
92641177 | 4099 | ibm->flags.proc_created = 0; |
5fba344c | 4100 | } |
1da177e4 | 4101 | |
8d376cd6 | 4102 | if (ibm->flags.acpi_driver_registered) { |
fe08bc4b HMH |
4103 | dbg_printk(TPACPI_DBG_EXIT, |
4104 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8d376cd6 HMH |
4105 | BUG_ON(!ibm->acpi); |
4106 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
4107 | kfree(ibm->acpi->driver); | |
4108 | ibm->acpi->driver = NULL; | |
4109 | ibm->flags.acpi_driver_registered = 0; | |
5fba344c HMH |
4110 | } |
4111 | ||
92641177 | 4112 | if (ibm->flags.init_called && ibm->exit) { |
5fba344c | 4113 | ibm->exit(); |
92641177 | 4114 | ibm->flags.init_called = 0; |
1da177e4 | 4115 | } |
a5763f22 HMH |
4116 | |
4117 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
1da177e4 LT |
4118 | } |
4119 | ||
56b6aeb0 HMH |
4120 | /* Probing */ |
4121 | ||
94954cc6 | 4122 | static char *ibm_thinkpad_ec_found; |
56b6aeb0 HMH |
4123 | |
4124 | static char* __init check_dmi_for_ec(void) | |
1da177e4 | 4125 | { |
56b6aeb0 HMH |
4126 | struct dmi_device *dev = NULL; |
4127 | char ec_fw_string[18]; | |
1da177e4 | 4128 | |
56b6aeb0 HMH |
4129 | /* |
4130 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
4131 | * X32 or newer, all Z series; Some models must have an | |
4132 | * up-to-date BIOS or they will not be detected. | |
4133 | * | |
4134 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
4135 | */ | |
4136 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
4137 | if (sscanf(dev->name, | |
4138 | "IBM ThinkPad Embedded Controller -[%17c", | |
4139 | ec_fw_string) == 1) { | |
4140 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
4141 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
4142 | return kstrdup(ec_fw_string, GFP_KERNEL); | |
78f81cc4 | 4143 | } |
1da177e4 | 4144 | } |
56b6aeb0 | 4145 | return NULL; |
1da177e4 LT |
4146 | } |
4147 | ||
5fba344c HMH |
4148 | static int __init probe_for_thinkpad(void) |
4149 | { | |
4150 | int is_thinkpad; | |
4151 | ||
4152 | if (acpi_disabled) | |
4153 | return -ENODEV; | |
4154 | ||
4155 | /* | |
4156 | * Non-ancient models have better DMI tagging, but very old models | |
4157 | * don't. | |
4158 | */ | |
4159 | is_thinkpad = dmi_name_in_vendors("ThinkPad"); | |
4160 | ||
4161 | /* ec is required because many other handles are relative to it */ | |
8d376cd6 | 4162 | IBM_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
4163 | if (!ec_handle) { |
4164 | if (is_thinkpad) | |
4165 | printk(IBM_ERR | |
4166 | "Not yet supported ThinkPad detected!\n"); | |
4167 | return -ENODEV; | |
4168 | } | |
4169 | ||
0dcef77c HMH |
4170 | /* |
4171 | * Risks a regression on very old machines, but reduces potential | |
4172 | * false positives a damn great deal | |
4173 | */ | |
4174 | if (!is_thinkpad) | |
4175 | is_thinkpad = dmi_name_in_vendors("IBM"); | |
4176 | ||
4177 | if (!is_thinkpad && !force_load) | |
4178 | return -ENODEV; | |
4179 | ||
5fba344c HMH |
4180 | return 0; |
4181 | } | |
4182 | ||
4183 | ||
56b6aeb0 | 4184 | /* Module init, exit, parameters */ |
1da177e4 | 4185 | |
a5763f22 HMH |
4186 | static struct ibm_init_struct ibms_init[] __initdata = { |
4187 | { | |
4188 | .init = thinkpad_acpi_driver_init, | |
4189 | .data = &thinkpad_acpi_driver_data, | |
4190 | }, | |
4191 | { | |
4192 | .init = hotkey_init, | |
4193 | .data = &hotkey_driver_data, | |
4194 | }, | |
4195 | { | |
4196 | .init = bluetooth_init, | |
4197 | .data = &bluetooth_driver_data, | |
4198 | }, | |
4199 | { | |
4200 | .init = wan_init, | |
4201 | .data = &wan_driver_data, | |
4202 | }, | |
4203 | { | |
4204 | .init = video_init, | |
4205 | .data = &video_driver_data, | |
4206 | }, | |
4207 | { | |
4208 | .init = light_init, | |
4209 | .data = &light_driver_data, | |
4210 | }, | |
4211 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
4212 | { | |
4213 | .init = dock_init, | |
4214 | .data = &dock_driver_data[0], | |
4215 | }, | |
4216 | { | |
d94a7f16 | 4217 | .init = dock_init2, |
a5763f22 HMH |
4218 | .data = &dock_driver_data[1], |
4219 | }, | |
4220 | #endif | |
4221 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
4222 | { | |
4223 | .init = bay_init, | |
4224 | .data = &bay_driver_data, | |
4225 | }, | |
4226 | #endif | |
4227 | { | |
4228 | .init = cmos_init, | |
4229 | .data = &cmos_driver_data, | |
4230 | }, | |
4231 | { | |
4232 | .init = led_init, | |
4233 | .data = &led_driver_data, | |
4234 | }, | |
4235 | { | |
4236 | .init = beep_init, | |
4237 | .data = &beep_driver_data, | |
4238 | }, | |
4239 | { | |
4240 | .init = thermal_init, | |
4241 | .data = &thermal_driver_data, | |
4242 | }, | |
4243 | { | |
4244 | .data = &ecdump_driver_data, | |
4245 | }, | |
4246 | { | |
4247 | .init = brightness_init, | |
4248 | .data = &brightness_driver_data, | |
4249 | }, | |
4250 | { | |
4251 | .data = &volume_driver_data, | |
4252 | }, | |
4253 | { | |
4254 | .init = fan_init, | |
4255 | .data = &fan_driver_data, | |
4256 | }, | |
4257 | }; | |
4258 | ||
3945ac36 | 4259 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
4260 | { |
4261 | unsigned int i; | |
a5763f22 | 4262 | struct ibm_struct *ibm; |
1da177e4 | 4263 | |
a5763f22 HMH |
4264 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
4265 | ibm = ibms_init[i].data; | |
4266 | BUG_ON(ibm == NULL); | |
4267 | ||
4268 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
4269 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 4270 | return -ENOSPC; |
a5763f22 HMH |
4271 | strcpy(ibms_init[i].param, val); |
4272 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
4273 | return 0; |
4274 | } | |
a5763f22 | 4275 | } |
1da177e4 | 4276 | |
1da177e4 LT |
4277 | return -EINVAL; |
4278 | } | |
4279 | ||
56b6aeb0 HMH |
4280 | static int experimental; |
4281 | module_param(experimental, int, 0); | |
4282 | ||
132ce091 HMH |
4283 | static u32 dbg_level; |
4284 | module_param_named(debug, dbg_level, uint, 0); | |
4285 | ||
0dcef77c HMH |
4286 | static int force_load; |
4287 | module_param(force_load, int, 0); | |
4288 | ||
ecf2a80a HMH |
4289 | static int fan_control_allowed; |
4290 | module_param_named(fan_control, fan_control_allowed, int, 0); | |
4291 | ||
1da177e4 LT |
4292 | #define IBM_PARAM(feature) \ |
4293 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
4294 | ||
78f81cc4 BD |
4295 | IBM_PARAM(hotkey); |
4296 | IBM_PARAM(bluetooth); | |
4297 | IBM_PARAM(video); | |
4298 | IBM_PARAM(light); | |
85998248 | 4299 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
78f81cc4 | 4300 | IBM_PARAM(dock); |
63e5f248 | 4301 | #endif |
85998248 | 4302 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 | 4303 | IBM_PARAM(bay); |
85998248 | 4304 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
78f81cc4 BD |
4305 | IBM_PARAM(cmos); |
4306 | IBM_PARAM(led); | |
4307 | IBM_PARAM(beep); | |
4308 | IBM_PARAM(ecdump); | |
4309 | IBM_PARAM(brightness); | |
4310 | IBM_PARAM(volume); | |
4311 | IBM_PARAM(fan); | |
4312 | ||
1def7115 | 4313 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
4314 | { |
4315 | int ret, i; | |
4316 | ||
54ae1501 | 4317 | /* Driver-level probe */ |
5fba344c HMH |
4318 | ret = probe_for_thinkpad(); |
4319 | if (ret) | |
4320 | return ret; | |
1da177e4 | 4321 | |
54ae1501 | 4322 | /* Driver initialization */ |
60eb0b35 | 4323 | ibm_thinkpad_ec_found = check_dmi_for_ec(); |
8d376cd6 HMH |
4324 | IBM_ACPIHANDLE_INIT(ecrd); |
4325 | IBM_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 4326 | |
8d376cd6 | 4327 | proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir); |
1da177e4 | 4328 | if (!proc_dir) { |
8d376cd6 | 4329 | printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR); |
1def7115 | 4330 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
4331 | return -ENODEV; |
4332 | } | |
4333 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 4334 | |
54ae1501 HMH |
4335 | ret = platform_driver_register(&tpacpi_pdriver); |
4336 | if (ret) { | |
4337 | printk(IBM_ERR "unable to register platform driver\n"); | |
4338 | thinkpad_acpi_module_exit(); | |
4339 | return ret; | |
4340 | } | |
176750d6 HMH |
4341 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
4342 | if (ret) { | |
4343 | printk(IBM_ERR "unable to create sysfs driver attributes\n"); | |
4344 | thinkpad_acpi_module_exit(); | |
4345 | return ret; | |
4346 | } | |
4347 | ||
54ae1501 HMH |
4348 | |
4349 | /* Device initialization */ | |
4350 | tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1, | |
4351 | NULL, 0); | |
4352 | if (IS_ERR(tpacpi_pdev)) { | |
4353 | ret = PTR_ERR(tpacpi_pdev); | |
4354 | tpacpi_pdev = NULL; | |
4355 | printk(IBM_ERR "unable to register platform device\n"); | |
4356 | thinkpad_acpi_module_exit(); | |
4357 | return ret; | |
4358 | } | |
4359 | tpacpi_hwmon = hwmon_device_register(&tpacpi_pdev->dev); | |
4360 | if (IS_ERR(tpacpi_hwmon)) { | |
4361 | ret = PTR_ERR(tpacpi_hwmon); | |
4362 | tpacpi_hwmon = NULL; | |
4363 | printk(IBM_ERR "unable to register hwmon device\n"); | |
4364 | thinkpad_acpi_module_exit(); | |
4365 | return ret; | |
4366 | } | |
7f5d1cd6 HMH |
4367 | tpacpi_inputdev = input_allocate_device(); |
4368 | if (!tpacpi_inputdev) { | |
4369 | printk(IBM_ERR "unable to allocate input device\n"); | |
4370 | thinkpad_acpi_module_exit(); | |
4371 | return -ENOMEM; | |
4372 | } else { | |
4373 | /* Prepare input device, but don't register */ | |
4374 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
4375 | tpacpi_inputdev->phys = IBM_DRVR_NAME "/input0"; | |
4376 | tpacpi_inputdev->id.bustype = BUS_HOST; | |
4377 | tpacpi_inputdev->id.vendor = TPACPI_HKEY_INPUT_VENDOR; | |
4378 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; | |
4379 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
4380 | } | |
a5763f22 HMH |
4381 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
4382 | ret = ibm_init(&ibms_init[i]); | |
4383 | if (ret >= 0 && *ibms_init[i].param) | |
4384 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 4385 | if (ret < 0) { |
1def7115 | 4386 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
4387 | return ret; |
4388 | } | |
4389 | } | |
7f5d1cd6 HMH |
4390 | ret = input_register_device(tpacpi_inputdev); |
4391 | if (ret < 0) { | |
4392 | printk(IBM_ERR "unable to register input device\n"); | |
4393 | thinkpad_acpi_module_exit(); | |
4394 | return ret; | |
4395 | } else { | |
4396 | tp_features.input_device_registered = 1; | |
4397 | } | |
1da177e4 LT |
4398 | |
4399 | return 0; | |
4400 | } | |
4401 | ||
1def7115 | 4402 | static void thinkpad_acpi_module_exit(void) |
56b6aeb0 | 4403 | { |
a5763f22 HMH |
4404 | struct ibm_struct *ibm, *itmp; |
4405 | ||
4406 | list_for_each_entry_safe_reverse(ibm, itmp, | |
4407 | &tpacpi_all_drivers, | |
4408 | all_drivers) { | |
4409 | ibm_exit(ibm); | |
4410 | } | |
56b6aeb0 | 4411 | |
a5763f22 | 4412 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); |
56b6aeb0 | 4413 | |
7f5d1cd6 HMH |
4414 | if (tpacpi_inputdev) { |
4415 | if (tp_features.input_device_registered) | |
4416 | input_unregister_device(tpacpi_inputdev); | |
4417 | else | |
4418 | input_free_device(tpacpi_inputdev); | |
4419 | } | |
4420 | ||
54ae1501 HMH |
4421 | if (tpacpi_hwmon) |
4422 | hwmon_device_unregister(tpacpi_hwmon); | |
4423 | ||
4424 | if (tpacpi_pdev) | |
4425 | platform_device_unregister(tpacpi_pdev); | |
4426 | ||
176750d6 | 4427 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); |
54ae1501 HMH |
4428 | platform_driver_unregister(&tpacpi_pdriver); |
4429 | ||
56b6aeb0 | 4430 | if (proc_dir) |
8d376cd6 | 4431 | remove_proc_entry(IBM_PROC_DIR, acpi_root_dir); |
56b6aeb0 | 4432 | |
8d376cd6 | 4433 | kfree(ibm_thinkpad_ec_found); |
56b6aeb0 HMH |
4434 | } |
4435 | ||
1def7115 HMH |
4436 | module_init(thinkpad_acpi_module_init); |
4437 | module_exit(thinkpad_acpi_module_exit); |