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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 | ||
3b0c6485 | 24 | #define IBM_VERSION "0.16" |
741553c2 | 25 | #define TPACPI_SYSFS_VERSION 0x010000 |
78f81cc4 BD |
26 | |
27 | /* | |
1da177e4 | 28 | * Changelog: |
643f12db HMH |
29 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
30 | * drivers/misc. | |
f9ff43a6 HMH |
31 | * |
32 | * 2006-11-22 0.13 new maintainer | |
33 | * changelog now lives in git commit history, and will | |
34 | * not be updated further in-file. | |
837ca6dd | 35 | * |
78f81cc4 BD |
36 | * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels |
37 | * 2005-03-17 0.11 support for 600e, 770x | |
38 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
39 | * support for 770e, G41 | |
40 | * G40 and G41 don't have a thinklight | |
41 | * temperatures no longer experimental | |
42 | * experimental brightness control | |
43 | * experimental volume control | |
44 | * experimental fan enable/disable | |
837ca6dd | 45 | * 2005-01-16 0.10 fix module loading on R30, R31 |
78f81cc4 BD |
46 | * 2005-01-16 0.9 support for 570, R30, R31 |
47 | * ultrabay support on A22p, A3x | |
48 | * limit arg for cmos, led, beep, drop experimental status | |
49 | * more capable led control on A21e, A22p, T20-22, X20 | |
50 | * experimental temperatures and fan speed | |
51 | * experimental embedded controller register dump | |
52 | * mark more functions as __init, drop incorrect __exit | |
53 | * use MODULE_VERSION | |
54 | * thanks to Henrik Brix Andersen <brix@gentoo.org> | |
55 | * fix parameter passing on module loading | |
56 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
57 | * thanks to Jim Radford <radford@blackbean.org> | |
58 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
59 | * thanks to Chris Wright <chrisw@osdl.org> | |
60 | * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20 | |
61 | * fix led control on A21e | |
62 | * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device | |
1da177e4 LT |
63 | * 2004-10-18 0.5 thinklight support on A21e, G40, R32, T20, T21, X20 |
64 | * proc file format changed | |
65 | * video_switch command | |
66 | * experimental cmos control | |
67 | * experimental led control | |
68 | * experimental acpi sounds | |
78f81cc4 BD |
69 | * 2004-09-16 0.4 support for module parameters |
70 | * hotkey mask can be prefixed by 0x | |
71 | * video output switching | |
72 | * video expansion control | |
73 | * ultrabay eject support | |
74 | * removed lcd brightness/on/off control, didn't work | |
75 | * 2004-08-17 0.3 support for R40 | |
76 | * lcd off, brightness control | |
77 | * thinklight on/off | |
78 | * 2004-08-14 0.2 support for T series, X20 | |
79 | * bluetooth enable/disable | |
80 | * hotkey events disabled by default | |
81 | * removed fan control, currently useless | |
82 | * 2004-08-09 0.1 initial release, support for X series | |
1da177e4 LT |
83 | */ |
84 | ||
f21f85de | 85 | #include "thinkpad_acpi.h" |
1da177e4 | 86 | |
f9ff43a6 | 87 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); |
78f81cc4 BD |
88 | MODULE_DESCRIPTION(IBM_DESC); |
89 | MODULE_VERSION(IBM_VERSION); | |
90 | MODULE_LICENSE("GPL"); | |
91 | ||
d903ac54 HMH |
92 | /* Please remove this in year 2009 */ |
93 | MODULE_ALIAS("ibm_acpi"); | |
94 | ||
b964b437 HMH |
95 | /* |
96 | * DMI matching for module autoloading | |
97 | * | |
98 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
99 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
100 | * | |
101 | * Only models listed in thinkwiki will be supported, so add yours | |
102 | * if it is not there yet. | |
103 | */ | |
104 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
105 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
106 | ||
107 | /* Non-ancient thinkpads */ | |
108 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
109 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
110 | ||
111 | /* Ancient thinkpad BIOSes have to be identified by | |
112 | * BIOS type or model number, and there are far less | |
113 | * BIOS types than model numbers... */ | |
114 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
115 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
116 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
117 | ||
1da177e4 LT |
118 | #define __unused __attribute__ ((unused)) |
119 | ||
8fef502e HMH |
120 | static enum { |
121 | TPACPI_LIFE_INIT = 0, | |
122 | TPACPI_LIFE_RUNNING, | |
123 | TPACPI_LIFE_EXITING, | |
124 | } tpacpi_lifecycle; | |
125 | ||
56b6aeb0 HMH |
126 | /**************************************************************************** |
127 | **************************************************************************** | |
128 | * | |
129 | * ACPI Helpers and device model | |
130 | * | |
131 | **************************************************************************** | |
132 | ****************************************************************************/ | |
133 | ||
134 | /************************************************************************* | |
135 | * ACPI basic handles | |
136 | */ | |
1da177e4 | 137 | |
94954cc6 | 138 | static acpi_handle root_handle; |
1da177e4 LT |
139 | |
140 | #define IBM_HANDLE(object, parent, paths...) \ | |
141 | static acpi_handle object##_handle; \ | |
142 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 143 | static char *object##_path; \ |
1da177e4 LT |
144 | static char *object##_paths[] = { paths } |
145 | ||
78f81cc4 BD |
146 | IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
147 | "\\_SB.PCI.ISA.EC", /* 570 */ | |
148 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
149 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
150 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
151 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
152 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 153 | ); |
78f81cc4 | 154 | |
56b6aeb0 HMH |
155 | IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
156 | IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 157 | |
56b6aeb0 HMH |
158 | |
159 | /************************************************************************* | |
160 | * Misc ACPI handles | |
161 | */ | |
78f81cc4 BD |
162 | |
163 | IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ | |
164 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ | |
165 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 166 | ); /* all others */ |
78f81cc4 BD |
167 | |
168 | IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ | |
169 | "^HKEY", /* R30, R31 */ | |
170 | "HKEY", /* all others */ | |
56b6aeb0 | 171 | ); /* 570 */ |
78f81cc4 | 172 | |
78f81cc4 | 173 | |
56b6aeb0 HMH |
174 | /************************************************************************* |
175 | * ACPI helpers | |
a8b7a662 HMH |
176 | */ |
177 | ||
1da177e4 LT |
178 | static int acpi_evalf(acpi_handle handle, |
179 | void *res, char *method, char *fmt, ...) | |
180 | { | |
181 | char *fmt0 = fmt; | |
78f81cc4 BD |
182 | struct acpi_object_list params; |
183 | union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; | |
184 | struct acpi_buffer result, *resultp; | |
185 | union acpi_object out_obj; | |
186 | acpi_status status; | |
187 | va_list ap; | |
188 | char res_type; | |
189 | int success; | |
190 | int quiet; | |
1da177e4 LT |
191 | |
192 | if (!*fmt) { | |
193 | printk(IBM_ERR "acpi_evalf() called with empty format\n"); | |
194 | return 0; | |
195 | } | |
196 | ||
197 | if (*fmt == 'q') { | |
198 | quiet = 1; | |
199 | fmt++; | |
200 | } else | |
201 | quiet = 0; | |
202 | ||
203 | res_type = *(fmt++); | |
204 | ||
205 | params.count = 0; | |
206 | params.pointer = &in_objs[0]; | |
207 | ||
208 | va_start(ap, fmt); | |
209 | while (*fmt) { | |
210 | char c = *(fmt++); | |
211 | switch (c) { | |
212 | case 'd': /* int */ | |
213 | in_objs[params.count].integer.value = va_arg(ap, int); | |
214 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
215 | break; | |
78f81cc4 | 216 | /* add more types as needed */ |
1da177e4 LT |
217 | default: |
218 | printk(IBM_ERR "acpi_evalf() called " | |
219 | "with invalid format character '%c'\n", c); | |
220 | return 0; | |
221 | } | |
222 | } | |
223 | va_end(ap); | |
224 | ||
78f81cc4 BD |
225 | if (res_type != 'v') { |
226 | result.length = sizeof(out_obj); | |
227 | result.pointer = &out_obj; | |
228 | resultp = &result; | |
229 | } else | |
230 | resultp = NULL; | |
1da177e4 | 231 | |
78f81cc4 | 232 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
233 | |
234 | switch (res_type) { | |
78f81cc4 | 235 | case 'd': /* int */ |
1da177e4 LT |
236 | if (res) |
237 | *(int *)res = out_obj.integer.value; | |
238 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
239 | break; | |
78f81cc4 | 240 | case 'v': /* void */ |
1da177e4 LT |
241 | success = status == AE_OK; |
242 | break; | |
78f81cc4 | 243 | /* add more types as needed */ |
1da177e4 LT |
244 | default: |
245 | printk(IBM_ERR "acpi_evalf() called " | |
246 | "with invalid format character '%c'\n", res_type); | |
247 | return 0; | |
248 | } | |
249 | ||
56b6aeb0 HMH |
250 | if (!success && !quiet) |
251 | printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", | |
252 | method, fmt0, status); | |
253 | ||
254 | return success; | |
255 | } | |
256 | ||
257 | static void __unused acpi_print_int(acpi_handle handle, char *method) | |
258 | { | |
259 | int i; | |
260 | ||
261 | if (acpi_evalf(handle, &i, method, "d")) | |
262 | printk(IBM_INFO "%s = 0x%x\n", method, i); | |
263 | else | |
264 | printk(IBM_ERR "error calling %s\n", method); | |
265 | } | |
266 | ||
267 | static int acpi_ec_read(int i, u8 * p) | |
268 | { | |
269 | int v; | |
270 | ||
271 | if (ecrd_handle) { | |
272 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
273 | return 0; | |
274 | *p = v; | |
275 | } else { | |
276 | if (ec_read(i, p) < 0) | |
277 | return 0; | |
278 | } | |
279 | ||
280 | return 1; | |
281 | } | |
282 | ||
283 | static int acpi_ec_write(int i, u8 v) | |
284 | { | |
285 | if (ecwr_handle) { | |
286 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
287 | return 0; | |
288 | } else { | |
289 | if (ec_write(i, v) < 0) | |
290 | return 0; | |
291 | } | |
292 | ||
293 | return 1; | |
294 | } | |
295 | ||
296 | static int _sta(acpi_handle handle) | |
297 | { | |
298 | int status; | |
299 | ||
300 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
301 | status = 0; | |
302 | ||
303 | return status; | |
304 | } | |
305 | ||
c9bea99c HMH |
306 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
307 | { | |
308 | if (!cmos_handle) | |
309 | return -ENXIO; | |
310 | ||
311 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
312 | return -EIO; | |
313 | ||
314 | return 0; | |
315 | } | |
316 | ||
56b6aeb0 HMH |
317 | /************************************************************************* |
318 | * ACPI device model | |
319 | */ | |
320 | ||
8d376cd6 | 321 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
322 | acpi_handle *handle, acpi_handle parent, |
323 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
324 | { |
325 | int i; | |
326 | acpi_status status; | |
327 | ||
5ae930e6 HMH |
328 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
329 | name); | |
330 | ||
56b6aeb0 HMH |
331 | for (i = 0; i < num_paths; i++) { |
332 | status = acpi_get_handle(parent, paths[i], handle); | |
333 | if (ACPI_SUCCESS(status)) { | |
334 | *path = paths[i]; | |
5ae930e6 HMH |
335 | dbg_printk(TPACPI_DBG_INIT, |
336 | "Found ACPI handle %s for %s\n", | |
337 | *path, name); | |
56b6aeb0 HMH |
338 | return; |
339 | } | |
340 | } | |
341 | ||
5ae930e6 HMH |
342 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
343 | name); | |
56b6aeb0 HMH |
344 | *handle = NULL; |
345 | } | |
346 | ||
8d376cd6 | 347 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
348 | { |
349 | struct ibm_struct *ibm = data; | |
350 | ||
8fef502e HMH |
351 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
352 | return; | |
353 | ||
8d376cd6 | 354 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
355 | return; |
356 | ||
8d376cd6 | 357 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
358 | } |
359 | ||
8d376cd6 | 360 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
361 | { |
362 | acpi_status status; | |
5ae930e6 | 363 | int rc; |
56b6aeb0 | 364 | |
8d376cd6 HMH |
365 | BUG_ON(!ibm->acpi); |
366 | ||
367 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
368 | return 0; |
369 | ||
5ae930e6 | 370 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
371 | "setting up ACPI notify for %s\n", ibm->name); |
372 | ||
5ae930e6 HMH |
373 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
374 | if (rc < 0) { | |
375 | printk(IBM_ERR "acpi_bus_get_device(%s) failed: %d\n", | |
376 | ibm->name, rc); | |
56b6aeb0 HMH |
377 | return -ENODEV; |
378 | } | |
379 | ||
8d376cd6 HMH |
380 | acpi_driver_data(ibm->acpi->device) = ibm; |
381 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
643f12db HMH |
382 | IBM_ACPI_EVENT_PREFIX, |
383 | ibm->name); | |
56b6aeb0 | 384 | |
8d376cd6 HMH |
385 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
386 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
387 | if (ACPI_FAILURE(status)) { |
388 | if (status == AE_ALREADY_EXISTS) { | |
389 | printk(IBM_NOTICE "another device driver is already handling %s events\n", | |
390 | ibm->name); | |
391 | } else { | |
392 | printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", | |
393 | ibm->name, status); | |
394 | } | |
395 | return -ENODEV; | |
396 | } | |
8d376cd6 | 397 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
398 | return 0; |
399 | } | |
400 | ||
8d376cd6 | 401 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
402 | { |
403 | return 0; | |
404 | } | |
405 | ||
6700121b | 406 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 407 | { |
5ae930e6 | 408 | int rc; |
56b6aeb0 | 409 | |
fe08bc4b HMH |
410 | dbg_printk(TPACPI_DBG_INIT, |
411 | "registering %s as an ACPI driver\n", ibm->name); | |
412 | ||
8d376cd6 HMH |
413 | BUG_ON(!ibm->acpi); |
414 | ||
415 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
416 | if (!ibm->acpi->driver) { | |
5fba344c HMH |
417 | printk(IBM_ERR "kzalloc(ibm->driver) failed\n"); |
418 | return -ENOMEM; | |
56b6aeb0 HMH |
419 | } |
420 | ||
8d376cd6 HMH |
421 | sprintf(ibm->acpi->driver->name, "%s_%s", IBM_NAME, ibm->name); |
422 | ibm->acpi->driver->ids = ibm->acpi->hid; | |
1ba90e3a | 423 | |
8d376cd6 | 424 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 425 | |
5ae930e6 HMH |
426 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
427 | if (rc < 0) { | |
56b6aeb0 | 428 | printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 429 | ibm->name, rc); |
8d376cd6 HMH |
430 | kfree(ibm->acpi->driver); |
431 | ibm->acpi->driver = NULL; | |
5ae930e6 | 432 | } else if (!rc) |
8d376cd6 | 433 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 434 | |
5ae930e6 | 435 | return rc; |
56b6aeb0 HMH |
436 | } |
437 | ||
438 | ||
439 | /**************************************************************************** | |
440 | **************************************************************************** | |
441 | * | |
442 | * Procfs Helpers | |
443 | * | |
444 | **************************************************************************** | |
445 | ****************************************************************************/ | |
446 | ||
8d376cd6 HMH |
447 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
448 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
449 | { |
450 | struct ibm_struct *ibm = data; | |
451 | int len; | |
452 | ||
453 | if (!ibm || !ibm->read) | |
454 | return -EINVAL; | |
455 | ||
456 | len = ibm->read(page); | |
457 | if (len < 0) | |
458 | return len; | |
459 | ||
460 | if (len <= off + count) | |
461 | *eof = 1; | |
462 | *start = page + off; | |
463 | len -= off; | |
464 | if (len > count) | |
465 | len = count; | |
466 | if (len < 0) | |
467 | len = 0; | |
468 | ||
469 | return len; | |
470 | } | |
471 | ||
8d376cd6 HMH |
472 | static int dispatch_procfs_write(struct file *file, |
473 | const char __user * userbuf, | |
474 | unsigned long count, void *data) | |
56b6aeb0 HMH |
475 | { |
476 | struct ibm_struct *ibm = data; | |
477 | char *kernbuf; | |
478 | int ret; | |
479 | ||
480 | if (!ibm || !ibm->write) | |
481 | return -EINVAL; | |
482 | ||
483 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
484 | if (!kernbuf) | |
485 | return -ENOMEM; | |
1da177e4 | 486 | |
56b6aeb0 HMH |
487 | if (copy_from_user(kernbuf, userbuf, count)) { |
488 | kfree(kernbuf); | |
489 | return -EFAULT; | |
490 | } | |
1da177e4 | 491 | |
56b6aeb0 HMH |
492 | kernbuf[count] = 0; |
493 | strcat(kernbuf, ","); | |
494 | ret = ibm->write(kernbuf); | |
495 | if (ret == 0) | |
496 | ret = count; | |
1da177e4 | 497 | |
56b6aeb0 HMH |
498 | kfree(kernbuf); |
499 | ||
500 | return ret; | |
1da177e4 LT |
501 | } |
502 | ||
503 | static char *next_cmd(char **cmds) | |
504 | { | |
505 | char *start = *cmds; | |
506 | char *end; | |
507 | ||
508 | while ((end = strchr(start, ',')) && end == start) | |
509 | start = end + 1; | |
510 | ||
511 | if (!end) | |
512 | return NULL; | |
513 | ||
514 | *end = 0; | |
515 | *cmds = end + 1; | |
516 | return start; | |
517 | } | |
518 | ||
56b6aeb0 | 519 | |
54ae1501 HMH |
520 | /**************************************************************************** |
521 | **************************************************************************** | |
522 | * | |
7f5d1cd6 | 523 | * Device model: input, hwmon and platform |
54ae1501 HMH |
524 | * |
525 | **************************************************************************** | |
526 | ****************************************************************************/ | |
527 | ||
94954cc6 HMH |
528 | static struct platform_device *tpacpi_pdev; |
529 | static struct class_device *tpacpi_hwmon; | |
7f5d1cd6 | 530 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 531 | static struct mutex tpacpi_inputdev_send_mutex; |
54ae1501 | 532 | |
e295e850 HMH |
533 | |
534 | static int tpacpi_resume_handler(struct platform_device *pdev) | |
535 | { | |
536 | struct ibm_struct *ibm, *itmp; | |
537 | ||
538 | list_for_each_entry_safe(ibm, itmp, | |
539 | &tpacpi_all_drivers, | |
540 | all_drivers) { | |
541 | if (ibm->resume) | |
542 | (ibm->resume)(); | |
543 | } | |
544 | ||
545 | return 0; | |
546 | } | |
547 | ||
54ae1501 HMH |
548 | static struct platform_driver tpacpi_pdriver = { |
549 | .driver = { | |
550 | .name = IBM_DRVR_NAME, | |
551 | .owner = THIS_MODULE, | |
552 | }, | |
e295e850 | 553 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
554 | }; |
555 | ||
556 | ||
176750d6 HMH |
557 | /************************************************************************* |
558 | * thinkpad-acpi driver attributes | |
559 | */ | |
560 | ||
561 | /* interface_version --------------------------------------------------- */ | |
562 | static ssize_t tpacpi_driver_interface_version_show( | |
563 | struct device_driver *drv, | |
564 | char *buf) | |
565 | { | |
566 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); | |
567 | } | |
568 | ||
569 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
570 | tpacpi_driver_interface_version_show, NULL); | |
571 | ||
572 | /* debug_level --------------------------------------------------------- */ | |
573 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
574 | char *buf) | |
575 | { | |
576 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
577 | } | |
578 | ||
579 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
580 | const char *buf, size_t count) | |
581 | { | |
582 | unsigned long t; | |
176750d6 | 583 | |
7252374a | 584 | if (parse_strtoul(buf, 0xffff, &t)) |
176750d6 HMH |
585 | return -EINVAL; |
586 | ||
587 | dbg_level = t; | |
588 | ||
589 | return count; | |
590 | } | |
591 | ||
592 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
593 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
594 | ||
595 | /* version ------------------------------------------------------------- */ | |
596 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
597 | char *buf) | |
598 | { | |
599 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", IBM_DESC, IBM_VERSION); | |
600 | } | |
601 | ||
602 | static DRIVER_ATTR(version, S_IRUGO, | |
603 | tpacpi_driver_version_show, NULL); | |
604 | ||
605 | /* --------------------------------------------------------------------- */ | |
606 | ||
607 | static struct driver_attribute* tpacpi_driver_attributes[] = { | |
608 | &driver_attr_debug_level, &driver_attr_version, | |
609 | &driver_attr_interface_version, | |
610 | }; | |
611 | ||
612 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
613 | { | |
614 | int i, res; | |
615 | ||
616 | i = 0; | |
617 | res = 0; | |
618 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
619 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
620 | i++; | |
621 | } | |
622 | ||
623 | return res; | |
624 | } | |
625 | ||
626 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
627 | { | |
628 | int i; | |
629 | ||
630 | for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) | |
631 | driver_remove_file(drv, tpacpi_driver_attributes[i]); | |
632 | } | |
633 | ||
7252374a HMH |
634 | /************************************************************************* |
635 | * sysfs support helpers | |
636 | */ | |
637 | ||
638 | struct attribute_set_obj { | |
639 | struct attribute_set s; | |
640 | struct attribute *a; | |
641 | } __attribute__((packed)); | |
642 | ||
643 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
644 | const char* name) | |
645 | { | |
646 | struct attribute_set_obj *sobj; | |
647 | ||
648 | if (max_members == 0) | |
649 | return NULL; | |
650 | ||
651 | /* Allocates space for implicit NULL at the end too */ | |
652 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
653 | max_members * sizeof(struct attribute *), | |
654 | GFP_KERNEL); | |
655 | if (!sobj) | |
656 | return NULL; | |
657 | sobj->s.max_members = max_members; | |
658 | sobj->s.group.attrs = &sobj->a; | |
659 | sobj->s.group.name = name; | |
660 | ||
661 | return &sobj->s; | |
662 | } | |
663 | ||
664 | /* not multi-threaded safe, use it in a single thread per set */ | |
665 | static int add_to_attr_set(struct attribute_set* s, struct attribute *attr) | |
666 | { | |
667 | if (!s || !attr) | |
668 | return -EINVAL; | |
669 | ||
670 | if (s->members >= s->max_members) | |
671 | return -ENOMEM; | |
672 | ||
673 | s->group.attrs[s->members] = attr; | |
674 | s->members++; | |
675 | ||
676 | return 0; | |
677 | } | |
678 | ||
679 | static int add_many_to_attr_set(struct attribute_set* s, | |
680 | struct attribute **attr, | |
681 | unsigned int count) | |
682 | { | |
683 | int i, res; | |
684 | ||
685 | for (i = 0; i < count; i++) { | |
686 | res = add_to_attr_set(s, attr[i]); | |
687 | if (res) | |
688 | return res; | |
689 | } | |
690 | ||
691 | return 0; | |
692 | } | |
693 | ||
694 | static void delete_attr_set(struct attribute_set* s, struct kobject *kobj) | |
695 | { | |
696 | sysfs_remove_group(kobj, &s->group); | |
697 | destroy_attr_set(s); | |
698 | } | |
699 | ||
700 | static int parse_strtoul(const char *buf, | |
701 | unsigned long max, unsigned long *value) | |
702 | { | |
703 | char *endp; | |
704 | ||
705 | *value = simple_strtoul(buf, &endp, 0); | |
706 | while (*endp && isspace(*endp)) | |
707 | endp++; | |
708 | if (*endp || *value > max) | |
709 | return -EINVAL; | |
710 | ||
711 | return 0; | |
712 | } | |
713 | ||
56b6aeb0 HMH |
714 | /**************************************************************************** |
715 | **************************************************************************** | |
716 | * | |
717 | * Subdrivers | |
718 | * | |
719 | **************************************************************************** | |
720 | ****************************************************************************/ | |
721 | ||
722 | /************************************************************************* | |
142cfc90 | 723 | * thinkpad-acpi init subdriver |
56b6aeb0 HMH |
724 | */ |
725 | ||
a5763f22 | 726 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
727 | { |
728 | printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); | |
729 | printk(IBM_INFO "%s\n", IBM_URL); | |
730 | ||
d5a2f2f1 HMH |
731 | printk(IBM_INFO "ThinkPad BIOS %s, EC %s\n", |
732 | (thinkpad_id.bios_version_str) ? | |
733 | thinkpad_id.bios_version_str : "unknown", | |
734 | (thinkpad_id.ec_version_str) ? | |
735 | thinkpad_id.ec_version_str : "unknown"); | |
736 | ||
737 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
738 | printk(IBM_INFO "%s %s\n", | |
739 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? | |
740 | "IBM" : ((thinkpad_id.vendor == | |
741 | PCI_VENDOR_ID_LENOVO) ? | |
742 | "Lenovo" : "Unknown vendor"), | |
743 | thinkpad_id.model_str); | |
3945ac36 | 744 | |
1da177e4 LT |
745 | return 0; |
746 | } | |
747 | ||
643f12db | 748 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
749 | { |
750 | int len = 0; | |
751 | ||
752 | len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); | |
753 | len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); | |
754 | ||
755 | return len; | |
756 | } | |
757 | ||
a5763f22 HMH |
758 | static struct ibm_struct thinkpad_acpi_driver_data = { |
759 | .name = "driver", | |
760 | .read = thinkpad_acpi_driver_read, | |
761 | }; | |
762 | ||
56b6aeb0 HMH |
763 | /************************************************************************* |
764 | * Hotkey subdriver | |
765 | */ | |
766 | ||
78f81cc4 | 767 | static int hotkey_orig_status; |
ae92bd17 | 768 | static u32 hotkey_orig_mask; |
9b010de5 | 769 | static u32 hotkey_all_mask; |
6a38abbf HMH |
770 | static u32 hotkey_reserved_mask; |
771 | ||
edf0e0e5 | 772 | static u16 *hotkey_keycode_map; |
78f81cc4 | 773 | |
94954cc6 | 774 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 775 | |
74941a69 HMH |
776 | static int hotkey_get_wlsw(int *status) |
777 | { | |
778 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
779 | return -EIO; | |
780 | return 0; | |
781 | } | |
782 | ||
a0416420 HMH |
783 | /* sysfs hotkey enable ------------------------------------------------- */ |
784 | static ssize_t hotkey_enable_show(struct device *dev, | |
785 | struct device_attribute *attr, | |
786 | char *buf) | |
787 | { | |
ae92bd17 HMH |
788 | int res, status; |
789 | u32 mask; | |
a0416420 HMH |
790 | |
791 | res = hotkey_get(&status, &mask); | |
792 | if (res) | |
793 | return res; | |
794 | ||
795 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
796 | } | |
797 | ||
798 | static ssize_t hotkey_enable_store(struct device *dev, | |
799 | struct device_attribute *attr, | |
800 | const char *buf, size_t count) | |
801 | { | |
802 | unsigned long t; | |
ae92bd17 HMH |
803 | int res, status; |
804 | u32 mask; | |
a0416420 HMH |
805 | |
806 | if (parse_strtoul(buf, 1, &t)) | |
807 | return -EINVAL; | |
808 | ||
809 | res = hotkey_get(&status, &mask); | |
810 | if (!res) | |
811 | res = hotkey_set(t, mask); | |
812 | ||
813 | return (res) ? res : count; | |
814 | } | |
815 | ||
816 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 817 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
818 | hotkey_enable_show, hotkey_enable_store); |
819 | ||
820 | /* sysfs hotkey mask --------------------------------------------------- */ | |
821 | static ssize_t hotkey_mask_show(struct device *dev, | |
822 | struct device_attribute *attr, | |
823 | char *buf) | |
824 | { | |
ae92bd17 HMH |
825 | int res, status; |
826 | u32 mask; | |
a0416420 HMH |
827 | |
828 | res = hotkey_get(&status, &mask); | |
829 | if (res) | |
830 | return res; | |
831 | ||
ae92bd17 | 832 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", mask); |
a0416420 HMH |
833 | } |
834 | ||
835 | static ssize_t hotkey_mask_store(struct device *dev, | |
836 | struct device_attribute *attr, | |
837 | const char *buf, size_t count) | |
838 | { | |
839 | unsigned long t; | |
ae92bd17 HMH |
840 | int res, status; |
841 | u32 mask; | |
a0416420 | 842 | |
ae92bd17 | 843 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
844 | return -EINVAL; |
845 | ||
846 | res = hotkey_get(&status, &mask); | |
847 | if (!res) | |
848 | hotkey_set(status, t); | |
849 | ||
850 | return (res) ? res : count; | |
851 | } | |
852 | ||
853 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 854 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
855 | hotkey_mask_show, hotkey_mask_store); |
856 | ||
857 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
858 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
859 | struct device_attribute *attr, | |
860 | char *buf) | |
861 | { | |
862 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
863 | } | |
864 | ||
865 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 866 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
867 | |
868 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
869 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
870 | struct device_attribute *attr, | |
871 | char *buf) | |
872 | { | |
ae92bd17 | 873 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
874 | } |
875 | ||
876 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 877 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 878 | |
9b010de5 HMH |
879 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
880 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
881 | struct device_attribute *attr, | |
882 | char *buf) | |
883 | { | |
884 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_all_mask); | |
885 | } | |
886 | ||
887 | static struct device_attribute dev_attr_hotkey_all_mask = | |
888 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
889 | ||
890 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
891 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
892 | struct device_attribute *attr, | |
893 | char *buf) | |
894 | { | |
895 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
896 | hotkey_all_mask & ~hotkey_reserved_mask); | |
897 | } | |
898 | ||
899 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
900 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
901 | hotkey_recommended_mask_show, NULL); | |
902 | ||
74941a69 HMH |
903 | /* sysfs hotkey radio_sw ----------------------------------------------- */ |
904 | static ssize_t hotkey_radio_sw_show(struct device *dev, | |
905 | struct device_attribute *attr, | |
906 | char *buf) | |
907 | { | |
908 | int res, s; | |
909 | res = hotkey_get_wlsw(&s); | |
910 | if (res < 0) | |
911 | return res; | |
912 | ||
913 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
914 | } | |
915 | ||
916 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
917 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
918 | ||
ff80f137 HMH |
919 | /* sysfs hotkey report_mode -------------------------------------------- */ |
920 | static ssize_t hotkey_report_mode_show(struct device *dev, | |
921 | struct device_attribute *attr, | |
922 | char *buf) | |
923 | { | |
924 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
925 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); | |
926 | } | |
927 | ||
928 | static struct device_attribute dev_attr_hotkey_report_mode = | |
929 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); | |
930 | ||
a0416420 HMH |
931 | /* --------------------------------------------------------------------- */ |
932 | ||
ff80f137 HMH |
933 | static struct attribute *hotkey_attributes[] __initdata = { |
934 | &dev_attr_hotkey_enable.attr, | |
935 | &dev_attr_hotkey_report_mode.attr, | |
936 | }; | |
937 | ||
938 | static struct attribute *hotkey_mask_attributes[] __initdata = { | |
a0416420 HMH |
939 | &dev_attr_hotkey_mask.attr, |
940 | &dev_attr_hotkey_bios_enabled.attr, | |
941 | &dev_attr_hotkey_bios_mask.attr, | |
9b010de5 HMH |
942 | &dev_attr_hotkey_all_mask.attr, |
943 | &dev_attr_hotkey_recommended_mask.attr, | |
a0416420 HMH |
944 | }; |
945 | ||
a5763f22 | 946 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 947 | { |
edf0e0e5 HMH |
948 | |
949 | static u16 ibm_keycode_map[] __initdata = { | |
950 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
951 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
952 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
953 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
954 | /* Scan codes 0x0C to 0x0F: Other ACPI HKEY hot keys */ | |
955 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ | |
956 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
957 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
958 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ | |
959 | /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */ | |
960 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ | |
961 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ | |
962 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ | |
963 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
964 | KEY_RESERVED, /* 0x14: VOLUME UP */ | |
965 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
966 | KEY_RESERVED, /* 0x16: MUTE */ | |
967 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ | |
968 | /* (assignments unknown, please report if found) */ | |
969 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
970 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
971 | }; | |
972 | static u16 lenovo_keycode_map[] __initdata = { | |
973 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
974 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
975 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
976 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
977 | /* Scan codes 0x0C to 0x0F: Other ACPI HKEY hot keys */ | |
978 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ | |
979 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
980 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
981 | KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ | |
982 | /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */ | |
983 | KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ | |
984 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ | |
985 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ | |
986 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
987 | KEY_RESERVED, /* 0x14: VOLUME UP */ | |
988 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
989 | KEY_RESERVED, /* 0x16: MUTE */ | |
990 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ | |
991 | /* (assignments unknown, please report if found) */ | |
992 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
993 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
994 | }; | |
995 | ||
996 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
997 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
998 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
999 | ||
6a38abbf | 1000 | int res, i; |
74941a69 | 1001 | int status; |
1b6521dc | 1002 | int hkeyv; |
b86c4722 | 1003 | |
fe08bc4b HMH |
1004 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
1005 | ||
6a38abbf HMH |
1006 | BUG_ON(!tpacpi_inputdev); |
1007 | ||
8d376cd6 | 1008 | IBM_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 1009 | mutex_init(&hotkey_mutex); |
5fba344c | 1010 | |
56b6aeb0 | 1011 | /* hotkey not supported on 570 */ |
d8fd94d9 | 1012 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 1013 | |
fe08bc4b | 1014 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 1015 | str_supported(tp_features.hotkey)); |
fe08bc4b | 1016 | |
d8fd94d9 | 1017 | if (tp_features.hotkey) { |
ff80f137 | 1018 | hotkey_dev_attributes = create_attr_set(8, NULL); |
a0416420 HMH |
1019 | if (!hotkey_dev_attributes) |
1020 | return -ENOMEM; | |
ff80f137 HMH |
1021 | res = add_many_to_attr_set(hotkey_dev_attributes, |
1022 | hotkey_attributes, | |
1023 | ARRAY_SIZE(hotkey_attributes)); | |
a0416420 HMH |
1024 | if (res) |
1025 | return res; | |
1026 | ||
56b6aeb0 | 1027 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1b6521dc HMH |
1028 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
1029 | for HKEY interface version 0x100 */ | |
1030 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
1031 | if ((hkeyv >> 8) != 1) { | |
1032 | printk(IBM_ERR "unknown version of the " | |
1033 | "HKEY interface: 0x%x\n", hkeyv); | |
1034 | printk(IBM_ERR "please report this to %s\n", | |
1035 | IBM_MAIL); | |
1036 | } else { | |
1037 | /* | |
1038 | * MHKV 0x100 in A31, R40, R40e, | |
1039 | * T4x, X31, and later | |
1040 | * */ | |
1041 | tp_features.hotkey_mask = 1; | |
1042 | } | |
1043 | } | |
56b6aeb0 | 1044 | |
fe08bc4b | 1045 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 1046 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 1047 | |
9b010de5 | 1048 | if (tp_features.hotkey_mask) { |
9b010de5 | 1049 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, |
1b6521dc HMH |
1050 | "MHKA", "qd")) { |
1051 | printk(IBM_ERR | |
1052 | "missing MHKA handler, " | |
1053 | "please report this to %s\n", | |
1054 | IBM_MAIL); | |
9b010de5 | 1055 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ |
1b6521dc | 1056 | } |
9b010de5 HMH |
1057 | } |
1058 | ||
b86c4722 | 1059 | res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask); |
a0416420 HMH |
1060 | if (!res && tp_features.hotkey_mask) { |
1061 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
1062 | hotkey_mask_attributes, | |
1063 | ARRAY_SIZE(hotkey_mask_attributes)); | |
1064 | } | |
74941a69 HMH |
1065 | |
1066 | /* Not all thinkpads have a hardware radio switch */ | |
1067 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
1068 | tp_features.hotkey_wlsw = 1; | |
1069 | printk(IBM_INFO | |
1070 | "radio switch found; radios are %s\n", | |
1071 | enabled(status, 0)); | |
1072 | res = add_to_attr_set(hotkey_dev_attributes, | |
1073 | &dev_attr_hotkey_radio_sw.attr); | |
1074 | } | |
1075 | ||
a0416420 HMH |
1076 | if (!res) |
1077 | res = register_attr_set_with_sysfs( | |
1078 | hotkey_dev_attributes, | |
1079 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
1080 | if (res) |
1081 | return res; | |
6a38abbf | 1082 | |
edf0e0e5 HMH |
1083 | /* Set up key map */ |
1084 | ||
1085 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, | |
1086 | GFP_KERNEL); | |
1087 | if (!hotkey_keycode_map) { | |
1088 | printk(IBM_ERR "failed to allocate memory for key map\n"); | |
1089 | return -ENOMEM; | |
1090 | } | |
1091 | ||
1092 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
1093 | dbg_printk(TPACPI_DBG_INIT, | |
1094 | "using Lenovo default hot key map\n"); | |
1095 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
1096 | TPACPI_HOTKEY_MAP_SIZE); | |
1097 | } else { | |
1098 | dbg_printk(TPACPI_DBG_INIT, | |
1099 | "using IBM default hot key map\n"); | |
1100 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
1101 | TPACPI_HOTKEY_MAP_SIZE); | |
1102 | } | |
1103 | ||
6a38abbf HMH |
1104 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
1105 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
1106 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
edf0e0e5 HMH |
1107 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
1108 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
1109 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
1110 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
6a38abbf HMH |
1111 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
1112 | set_bit(hotkey_keycode_map[i], | |
1113 | tpacpi_inputdev->keybit); | |
1114 | } else { | |
1115 | if (i < sizeof(hotkey_reserved_mask)*8) | |
1116 | hotkey_reserved_mask |= 1 << i; | |
1117 | } | |
1118 | } | |
1119 | ||
5c29d58f HMH |
1120 | if (tp_features.hotkey_wlsw) { |
1121 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
1122 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
1123 | } | |
1124 | ||
1a343760 HMH |
1125 | dbg_printk(TPACPI_DBG_INIT, |
1126 | "enabling hot key handling\n"); | |
1127 | res = hotkey_set(1, (hotkey_all_mask & ~hotkey_reserved_mask) | |
1128 | | hotkey_orig_mask); | |
1129 | if (res) | |
1130 | return res; | |
ff80f137 HMH |
1131 | |
1132 | dbg_printk(TPACPI_DBG_INIT, | |
1133 | "legacy hot key reporting over procfs %s\n", | |
1134 | (hotkey_report_mode < 2) ? | |
1135 | "enabled" : "disabled"); | |
56b6aeb0 HMH |
1136 | } |
1137 | ||
d8fd94d9 | 1138 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
1139 | } |
1140 | ||
1141 | static void hotkey_exit(void) | |
1142 | { | |
b86c4722 HMH |
1143 | int res; |
1144 | ||
d8fd94d9 | 1145 | if (tp_features.hotkey) { |
fe08bc4b | 1146 | dbg_printk(TPACPI_DBG_EXIT, "restoring original hotkey mask\n"); |
b86c4722 HMH |
1147 | res = hotkey_set(hotkey_orig_status, hotkey_orig_mask); |
1148 | if (res) | |
1149 | printk(IBM_ERR "failed to restore hotkey to BIOS defaults\n"); | |
5fba344c | 1150 | } |
a0416420 HMH |
1151 | |
1152 | if (hotkey_dev_attributes) { | |
1153 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
1154 | hotkey_dev_attributes = NULL; | |
1155 | } | |
56b6aeb0 HMH |
1156 | } |
1157 | ||
6a38abbf HMH |
1158 | static void tpacpi_input_send_key(unsigned int scancode, |
1159 | unsigned int keycode) | |
1160 | { | |
1161 | if (keycode != KEY_RESERVED) { | |
8523ed6f HMH |
1162 | mutex_lock(&tpacpi_inputdev_send_mutex); |
1163 | ||
6a38abbf HMH |
1164 | input_report_key(tpacpi_inputdev, keycode, 1); |
1165 | if (keycode == KEY_UNKNOWN) | |
1166 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1167 | scancode); | |
1168 | input_sync(tpacpi_inputdev); | |
1169 | ||
1170 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1171 | if (keycode == KEY_UNKNOWN) | |
1172 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1173 | scancode); | |
1174 | input_sync(tpacpi_inputdev); | |
8523ed6f HMH |
1175 | |
1176 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
6a38abbf HMH |
1177 | } |
1178 | } | |
1179 | ||
5c29d58f HMH |
1180 | static void tpacpi_input_send_radiosw(void) |
1181 | { | |
1182 | int wlsw; | |
1183 | ||
8523ed6f HMH |
1184 | mutex_lock(&tpacpi_inputdev_send_mutex); |
1185 | ||
f4e1e43c | 1186 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { |
5c29d58f HMH |
1187 | input_report_switch(tpacpi_inputdev, |
1188 | SW_RADIO, !!wlsw); | |
f4e1e43c HMH |
1189 | input_sync(tpacpi_inputdev); |
1190 | } | |
8523ed6f HMH |
1191 | |
1192 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
5c29d58f HMH |
1193 | } |
1194 | ||
56b6aeb0 HMH |
1195 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
1196 | { | |
6a38abbf HMH |
1197 | u32 hkey; |
1198 | unsigned int keycode, scancode; | |
ff80f137 | 1199 | int send_acpi_ev = 0; |
56b6aeb0 | 1200 | |
ae92bd17 | 1201 | if (event == 0x80 && acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { |
ff80f137 HMH |
1202 | switch (hkey >> 12) { |
1203 | case 1: | |
1204 | /* 0x1000-0x1FFF: key presses */ | |
1205 | scancode = hkey & 0xfff; | |
1206 | if (scancode > 0 && scancode < 0x21) { | |
1207 | scancode--; | |
1208 | keycode = hotkey_keycode_map[scancode]; | |
1209 | tpacpi_input_send_key(scancode, keycode); | |
1210 | } else { | |
1211 | printk(IBM_ERR | |
1212 | "hotkey 0x%04x out of range for keyboard map\n", | |
1213 | hkey); | |
1214 | send_acpi_ev = 1; | |
1215 | } | |
1216 | break; | |
1217 | case 5: | |
1218 | /* 0x5000-0x5FFF: LID */ | |
1219 | /* we don't handle it through this path, just | |
1220 | * eat up known LID events */ | |
1221 | if (hkey != 0x5001 && hkey != 0x5002) { | |
1222 | printk(IBM_ERR | |
1223 | "unknown LID-related hotkey event: 0x%04x\n", | |
1224 | hkey); | |
1225 | send_acpi_ev = 1; | |
1226 | } | |
1227 | break; | |
1228 | case 7: | |
1229 | /* 0x7000-0x7FFF: misc */ | |
1230 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
1231 | tpacpi_input_send_radiosw(); | |
6a38abbf | 1232 | break; |
6a38abbf | 1233 | } |
ff80f137 HMH |
1234 | /* fallthrough to default */ |
1235 | default: | |
1236 | /* case 2: dock-related */ | |
1237 | /* 0x2305 - T43 waking up due to bay lever eject while aslept */ | |
1238 | /* case 3: ultra-bay related. maybe bay in dock? */ | |
1239 | /* 0x3003 - T43 after wake up by bay lever eject (0x2305) */ | |
1240 | printk(IBM_NOTICE "unhandled HKEY event 0x%04x\n", hkey); | |
1241 | send_acpi_ev = 1; | |
6a38abbf | 1242 | } |
ae92bd17 HMH |
1243 | } else { |
1244 | printk(IBM_ERR "unknown hotkey notification event %d\n", event); | |
ff80f137 HMH |
1245 | hkey = 0; |
1246 | send_acpi_ev = 1; | |
1247 | } | |
1248 | ||
1249 | /* Legacy events */ | |
1250 | if (send_acpi_ev || hotkey_report_mode < 2) | |
1251 | acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey); | |
1252 | ||
1253 | /* netlink events */ | |
1254 | if (send_acpi_ev) { | |
1255 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, | |
1256 | ibm->acpi->device->dev.bus_id, | |
1257 | event, hkey); | |
56b6aeb0 HMH |
1258 | } |
1259 | } | |
1260 | ||
5c29d58f HMH |
1261 | static void hotkey_resume(void) |
1262 | { | |
1263 | tpacpi_input_send_radiosw(); | |
1264 | } | |
1265 | ||
40ca9fdf HMH |
1266 | /* |
1267 | * Call with hotkey_mutex held | |
1268 | */ | |
ae92bd17 | 1269 | static int hotkey_get(int *status, u32 *mask) |
1da177e4 LT |
1270 | { |
1271 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
b86c4722 | 1272 | return -EIO; |
78f81cc4 | 1273 | |
d8fd94d9 | 1274 | if (tp_features.hotkey_mask) |
78f81cc4 | 1275 | if (!acpi_evalf(hkey_handle, mask, "DHKN", "d")) |
b86c4722 | 1276 | return -EIO; |
78f81cc4 | 1277 | |
b86c4722 | 1278 | return 0; |
1da177e4 LT |
1279 | } |
1280 | ||
40ca9fdf HMH |
1281 | /* |
1282 | * Call with hotkey_mutex held | |
1283 | */ | |
ae92bd17 | 1284 | static int hotkey_set(int status, u32 mask) |
1da177e4 LT |
1285 | { |
1286 | int i; | |
1287 | ||
1288 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
b86c4722 | 1289 | return -EIO; |
1da177e4 | 1290 | |
d8fd94d9 | 1291 | if (tp_features.hotkey_mask) |
78f81cc4 BD |
1292 | for (i = 0; i < 32; i++) { |
1293 | int bit = ((1 << i) & mask) != 0; | |
1294 | if (!acpi_evalf(hkey_handle, | |
1295 | NULL, "MHKM", "vdd", i + 1, bit)) | |
b86c4722 | 1296 | return -EIO; |
78f81cc4 | 1297 | } |
1da177e4 | 1298 | |
b86c4722 | 1299 | return 0; |
1da177e4 LT |
1300 | } |
1301 | ||
a0416420 | 1302 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 1303 | static int hotkey_read(char *p) |
1da177e4 | 1304 | { |
ae92bd17 HMH |
1305 | int res, status; |
1306 | u32 mask; | |
1da177e4 LT |
1307 | int len = 0; |
1308 | ||
d8fd94d9 | 1309 | if (!tp_features.hotkey) { |
78f81cc4 BD |
1310 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1311 | return len; | |
1312 | } | |
1313 | ||
40ca9fdf HMH |
1314 | res = mutex_lock_interruptible(&hotkey_mutex); |
1315 | if (res < 0) | |
1316 | return res; | |
b86c4722 | 1317 | res = hotkey_get(&status, &mask); |
40ca9fdf | 1318 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
1319 | if (res) |
1320 | return res; | |
1da177e4 LT |
1321 | |
1322 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 1323 | if (tp_features.hotkey_mask) { |
ae92bd17 | 1324 | len += sprintf(p + len, "mask:\t\t0x%08x\n", mask); |
1da177e4 LT |
1325 | len += sprintf(p + len, |
1326 | "commands:\tenable, disable, reset, <mask>\n"); | |
1327 | } else { | |
1328 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
1329 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
1330 | } | |
1331 | ||
1332 | return len; | |
1333 | } | |
1334 | ||
78f81cc4 | 1335 | static int hotkey_write(char *buf) |
1da177e4 | 1336 | { |
ae92bd17 HMH |
1337 | int res, status; |
1338 | u32 mask; | |
1da177e4 LT |
1339 | char *cmd; |
1340 | int do_cmd = 0; | |
1341 | ||
d8fd94d9 | 1342 | if (!tp_features.hotkey) |
1da177e4 LT |
1343 | return -ENODEV; |
1344 | ||
40ca9fdf HMH |
1345 | res = mutex_lock_interruptible(&hotkey_mutex); |
1346 | if (res < 0) | |
1347 | return res; | |
1348 | ||
b86c4722 HMH |
1349 | res = hotkey_get(&status, &mask); |
1350 | if (res) | |
40ca9fdf | 1351 | goto errexit; |
78f81cc4 | 1352 | |
40ca9fdf | 1353 | res = 0; |
1da177e4 LT |
1354 | while ((cmd = next_cmd(&buf))) { |
1355 | if (strlencmp(cmd, "enable") == 0) { | |
1356 | status = 1; | |
1357 | } else if (strlencmp(cmd, "disable") == 0) { | |
1358 | status = 0; | |
1359 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
1360 | status = hotkey_orig_status; |
1361 | mask = hotkey_orig_mask; | |
1da177e4 LT |
1362 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
1363 | /* mask set */ | |
1364 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
1365 | /* mask set */ | |
40ca9fdf HMH |
1366 | } else { |
1367 | res = -EINVAL; | |
1368 | goto errexit; | |
1369 | } | |
1da177e4 LT |
1370 | do_cmd = 1; |
1371 | } | |
1372 | ||
40ca9fdf | 1373 | if (do_cmd) |
b86c4722 | 1374 | res = hotkey_set(status, mask); |
1da177e4 | 1375 | |
40ca9fdf HMH |
1376 | errexit: |
1377 | mutex_unlock(&hotkey_mutex); | |
1378 | return res; | |
78f81cc4 | 1379 | } |
1da177e4 | 1380 | |
1ba90e3a TR |
1381 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
1382 | {IBM_HKEY_HID, 0}, | |
1383 | {"", 0}, | |
1384 | }; | |
1385 | ||
8d376cd6 | 1386 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 1387 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
1388 | .notify = hotkey_notify, |
1389 | .handle = &hkey_handle, | |
1390 | .type = ACPI_DEVICE_NOTIFY, | |
1391 | }; | |
1392 | ||
a5763f22 HMH |
1393 | static struct ibm_struct hotkey_driver_data = { |
1394 | .name = "hotkey", | |
a5763f22 HMH |
1395 | .read = hotkey_read, |
1396 | .write = hotkey_write, | |
1397 | .exit = hotkey_exit, | |
5c29d58f | 1398 | .resume = hotkey_resume, |
8d376cd6 | 1399 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
1400 | }; |
1401 | ||
56b6aeb0 HMH |
1402 | /************************************************************************* |
1403 | * Bluetooth subdriver | |
1404 | */ | |
1da177e4 | 1405 | |
d3a6ade4 HMH |
1406 | /* sysfs bluetooth enable ---------------------------------------------- */ |
1407 | static ssize_t bluetooth_enable_show(struct device *dev, | |
1408 | struct device_attribute *attr, | |
1409 | char *buf) | |
1410 | { | |
1411 | int status; | |
1412 | ||
1413 | status = bluetooth_get_radiosw(); | |
1414 | if (status < 0) | |
1415 | return status; | |
1416 | ||
1417 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
1418 | } | |
1419 | ||
1420 | static ssize_t bluetooth_enable_store(struct device *dev, | |
1421 | struct device_attribute *attr, | |
1422 | const char *buf, size_t count) | |
1423 | { | |
1424 | unsigned long t; | |
1425 | int res; | |
1426 | ||
1427 | if (parse_strtoul(buf, 1, &t)) | |
1428 | return -EINVAL; | |
1429 | ||
1430 | res = bluetooth_set_radiosw(t); | |
1431 | ||
1432 | return (res) ? res : count; | |
1433 | } | |
1434 | ||
1435 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 1436 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
1437 | bluetooth_enable_show, bluetooth_enable_store); |
1438 | ||
1439 | /* --------------------------------------------------------------------- */ | |
1440 | ||
1441 | static struct attribute *bluetooth_attributes[] = { | |
1442 | &dev_attr_bluetooth_enable.attr, | |
1443 | NULL | |
1444 | }; | |
1445 | ||
1446 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
1447 | .attrs = bluetooth_attributes, |
1448 | }; | |
1449 | ||
a5763f22 | 1450 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 1451 | { |
d3a6ade4 | 1452 | int res; |
d6fdd1e9 HMH |
1453 | int status = 0; |
1454 | ||
fe08bc4b HMH |
1455 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
1456 | ||
8d376cd6 | 1457 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1458 | |
78f81cc4 BD |
1459 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1460 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 1461 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
1462 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
1463 | ||
1464 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
1465 | str_supported(tp_features.bluetooth), | |
1466 | status); | |
1467 | ||
d3a6ade4 HMH |
1468 | if (tp_features.bluetooth) { |
1469 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
1470 | /* no bluetooth hardware present in system */ | |
1471 | tp_features.bluetooth = 0; | |
1472 | dbg_printk(TPACPI_DBG_INIT, | |
1473 | "bluetooth hardware not installed\n"); | |
1474 | } else { | |
1475 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
1476 | &bluetooth_attr_group); | |
1477 | if (res) | |
1478 | return res; | |
1479 | } | |
d6fdd1e9 | 1480 | } |
fe08bc4b | 1481 | |
d8fd94d9 | 1482 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
1483 | } |
1484 | ||
d3a6ade4 HMH |
1485 | static void bluetooth_exit(void) |
1486 | { | |
1487 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
1488 | &bluetooth_attr_group); | |
1489 | } | |
1490 | ||
d6fdd1e9 | 1491 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
1492 | { |
1493 | int status; | |
1494 | ||
d6fdd1e9 HMH |
1495 | if (!tp_features.bluetooth) |
1496 | return -ENODEV; | |
1da177e4 | 1497 | |
d6fdd1e9 HMH |
1498 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
1499 | return -EIO; | |
1500 | ||
1501 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
1502 | } | |
1503 | ||
1504 | static int bluetooth_set_radiosw(int radio_on) | |
1505 | { | |
1506 | int status; | |
1507 | ||
1508 | if (!tp_features.bluetooth) | |
1509 | return -ENODEV; | |
1510 | ||
1511 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
1512 | return -EIO; | |
1513 | if (radio_on) | |
1514 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
1515 | else | |
1516 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
1517 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
1518 | return -EIO; | |
1519 | ||
1520 | return 0; | |
1da177e4 LT |
1521 | } |
1522 | ||
d3a6ade4 | 1523 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 1524 | static int bluetooth_read(char *p) |
1da177e4 LT |
1525 | { |
1526 | int len = 0; | |
d6fdd1e9 | 1527 | int status = bluetooth_get_radiosw(); |
1da177e4 | 1528 | |
d8fd94d9 | 1529 | if (!tp_features.bluetooth) |
1da177e4 | 1530 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 1531 | else { |
d6fdd1e9 HMH |
1532 | len += sprintf(p + len, "status:\t\t%s\n", |
1533 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
1534 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1535 | } | |
1536 | ||
1537 | return len; | |
1538 | } | |
1539 | ||
78f81cc4 | 1540 | static int bluetooth_write(char *buf) |
1da177e4 | 1541 | { |
1da177e4 | 1542 | char *cmd; |
1da177e4 | 1543 | |
d8fd94d9 | 1544 | if (!tp_features.bluetooth) |
78f81cc4 | 1545 | return -ENODEV; |
1da177e4 LT |
1546 | |
1547 | while ((cmd = next_cmd(&buf))) { | |
1548 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1549 | bluetooth_set_radiosw(1); |
1da177e4 | 1550 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1551 | bluetooth_set_radiosw(0); |
1da177e4 LT |
1552 | } else |
1553 | return -EINVAL; | |
1da177e4 LT |
1554 | } |
1555 | ||
1da177e4 LT |
1556 | return 0; |
1557 | } | |
1558 | ||
a5763f22 HMH |
1559 | static struct ibm_struct bluetooth_driver_data = { |
1560 | .name = "bluetooth", | |
1561 | .read = bluetooth_read, | |
1562 | .write = bluetooth_write, | |
d3a6ade4 | 1563 | .exit = bluetooth_exit, |
a5763f22 HMH |
1564 | }; |
1565 | ||
56b6aeb0 HMH |
1566 | /************************************************************************* |
1567 | * Wan subdriver | |
1568 | */ | |
1569 | ||
d3a6ade4 HMH |
1570 | /* sysfs wan enable ---------------------------------------------------- */ |
1571 | static ssize_t wan_enable_show(struct device *dev, | |
1572 | struct device_attribute *attr, | |
1573 | char *buf) | |
1574 | { | |
1575 | int status; | |
1576 | ||
1577 | status = wan_get_radiosw(); | |
1578 | if (status < 0) | |
1579 | return status; | |
1580 | ||
1581 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
1582 | } | |
1583 | ||
1584 | static ssize_t wan_enable_store(struct device *dev, | |
1585 | struct device_attribute *attr, | |
1586 | const char *buf, size_t count) | |
1587 | { | |
1588 | unsigned long t; | |
1589 | int res; | |
1590 | ||
1591 | if (parse_strtoul(buf, 1, &t)) | |
1592 | return -EINVAL; | |
1593 | ||
1594 | res = wan_set_radiosw(t); | |
1595 | ||
1596 | return (res) ? res : count; | |
1597 | } | |
1598 | ||
1599 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 1600 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
1601 | wan_enable_show, wan_enable_store); |
1602 | ||
1603 | /* --------------------------------------------------------------------- */ | |
1604 | ||
1605 | static struct attribute *wan_attributes[] = { | |
1606 | &dev_attr_wan_enable.attr, | |
1607 | NULL | |
1608 | }; | |
1609 | ||
1610 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
1611 | .attrs = wan_attributes, |
1612 | }; | |
1613 | ||
a5763f22 | 1614 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 1615 | { |
d3a6ade4 | 1616 | int res; |
d6fdd1e9 HMH |
1617 | int status = 0; |
1618 | ||
fe08bc4b HMH |
1619 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
1620 | ||
8d376cd6 | 1621 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1622 | |
d8fd94d9 | 1623 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
1624 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
1625 | ||
1626 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
1627 | str_supported(tp_features.wan), | |
1628 | status); | |
1629 | ||
d3a6ade4 HMH |
1630 | if (tp_features.wan) { |
1631 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
1632 | /* no wan hardware present in system */ | |
1633 | tp_features.wan = 0; | |
1634 | dbg_printk(TPACPI_DBG_INIT, | |
1635 | "wan hardware not installed\n"); | |
1636 | } else { | |
1637 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
1638 | &wan_attr_group); | |
1639 | if (res) | |
1640 | return res; | |
1641 | } | |
d6fdd1e9 | 1642 | } |
fe08bc4b | 1643 | |
d8fd94d9 | 1644 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
1645 | } |
1646 | ||
d3a6ade4 HMH |
1647 | static void wan_exit(void) |
1648 | { | |
1649 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
1650 | &wan_attr_group); | |
1651 | } | |
1652 | ||
d6fdd1e9 | 1653 | static int wan_get_radiosw(void) |
42adb53c JF |
1654 | { |
1655 | int status; | |
1656 | ||
d6fdd1e9 HMH |
1657 | if (!tp_features.wan) |
1658 | return -ENODEV; | |
42adb53c | 1659 | |
d6fdd1e9 HMH |
1660 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
1661 | return -EIO; | |
1662 | ||
1663 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
1664 | } | |
1665 | ||
1666 | static int wan_set_radiosw(int radio_on) | |
1667 | { | |
1668 | int status; | |
1669 | ||
1670 | if (!tp_features.wan) | |
1671 | return -ENODEV; | |
1672 | ||
1673 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
1674 | return -EIO; | |
1675 | if (radio_on) | |
1676 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
1677 | else | |
1678 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
1679 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
1680 | return -EIO; | |
1681 | ||
1682 | return 0; | |
42adb53c JF |
1683 | } |
1684 | ||
d3a6ade4 | 1685 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
1686 | static int wan_read(char *p) |
1687 | { | |
1688 | int len = 0; | |
d6fdd1e9 | 1689 | int status = wan_get_radiosw(); |
42adb53c | 1690 | |
d8fd94d9 | 1691 | if (!tp_features.wan) |
42adb53c | 1692 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 1693 | else { |
d6fdd1e9 HMH |
1694 | len += sprintf(p + len, "status:\t\t%s\n", |
1695 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
1696 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1697 | } | |
1698 | ||
1699 | return len; | |
1700 | } | |
1701 | ||
1702 | static int wan_write(char *buf) | |
1703 | { | |
42adb53c | 1704 | char *cmd; |
42adb53c | 1705 | |
d8fd94d9 | 1706 | if (!tp_features.wan) |
42adb53c JF |
1707 | return -ENODEV; |
1708 | ||
1709 | while ((cmd = next_cmd(&buf))) { | |
1710 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1711 | wan_set_radiosw(1); |
42adb53c | 1712 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1713 | wan_set_radiosw(0); |
42adb53c JF |
1714 | } else |
1715 | return -EINVAL; | |
42adb53c JF |
1716 | } |
1717 | ||
42adb53c JF |
1718 | return 0; |
1719 | } | |
1720 | ||
a5763f22 HMH |
1721 | static struct ibm_struct wan_driver_data = { |
1722 | .name = "wan", | |
1723 | .read = wan_read, | |
1724 | .write = wan_write, | |
d3a6ade4 | 1725 | .exit = wan_exit, |
92641177 | 1726 | .flags.experimental = 1, |
a5763f22 HMH |
1727 | }; |
1728 | ||
56b6aeb0 HMH |
1729 | /************************************************************************* |
1730 | * Video subdriver | |
1731 | */ | |
1732 | ||
9a8e1738 HMH |
1733 | static enum video_access_mode video_supported; |
1734 | static int video_orig_autosw; | |
78f81cc4 | 1735 | |
56b6aeb0 HMH |
1736 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
1737 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
1738 | "\\_SB.PCI0.VID0", /* 770e */ | |
1739 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
1740 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
1741 | ); /* R30, R31 */ | |
1742 | ||
1743 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
1744 | ||
a5763f22 | 1745 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 1746 | { |
78f81cc4 BD |
1747 | int ivga; |
1748 | ||
fe08bc4b HMH |
1749 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
1750 | ||
8d376cd6 HMH |
1751 | IBM_ACPIHANDLE_INIT(vid); |
1752 | IBM_ACPIHANDLE_INIT(vid2); | |
5fba344c | 1753 | |
78f81cc4 BD |
1754 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
1755 | /* G41, assume IVGA doesn't change */ | |
1756 | vid_handle = vid2_handle; | |
1757 | ||
1758 | if (!vid_handle) | |
1759 | /* video switching not supported on R30, R31 */ | |
efa27145 | 1760 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
1761 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
1762 | /* 570 */ | |
efa27145 | 1763 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
1764 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
1765 | /* 600e/x, 770e, 770x */ | |
efa27145 | 1766 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
1767 | else |
1768 | /* all others */ | |
efa27145 | 1769 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 1770 | |
fe08bc4b HMH |
1771 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
1772 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
1773 | video_supported); | |
1774 | ||
5fba344c | 1775 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
1776 | } |
1777 | ||
56b6aeb0 HMH |
1778 | static void video_exit(void) |
1779 | { | |
83f34724 HMH |
1780 | dbg_printk(TPACPI_DBG_EXIT, |
1781 | "restoring original video autoswitch mode\n"); | |
1782 | if (video_autosw_set(video_orig_autosw)) | |
1783 | printk(IBM_ERR "error while trying to restore original " | |
1784 | "video autoswitch mode\n"); | |
56b6aeb0 HMH |
1785 | } |
1786 | ||
83f34724 | 1787 | static int video_outputsw_get(void) |
1da177e4 LT |
1788 | { |
1789 | int status = 0; | |
1790 | int i; | |
1791 | ||
83f34724 HMH |
1792 | switch (video_supported) { |
1793 | case TPACPI_VIDEO_570: | |
1794 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
1795 | TP_ACPI_VIDEO_570_PHSCMD)) | |
1796 | return -EIO; | |
1797 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
1798 | break; | |
1799 | case TPACPI_VIDEO_770: | |
1800 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1801 | return -EIO; | |
1802 | if (i) | |
1803 | status |= TP_ACPI_VIDEO_S_LCD; | |
1804 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1805 | return -EIO; | |
1806 | if (i) | |
1807 | status |= TP_ACPI_VIDEO_S_CRT; | |
1808 | break; | |
1809 | case TPACPI_VIDEO_NEW: | |
1810 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
1811 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1812 | return -EIO; | |
1813 | if (i) | |
1814 | status |= TP_ACPI_VIDEO_S_CRT; | |
1815 | ||
1816 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
1817 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1818 | return -EIO; | |
1819 | if (i) | |
1820 | status |= TP_ACPI_VIDEO_S_LCD; | |
1821 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
1822 | return -EIO; | |
1823 | if (i) | |
1824 | status |= TP_ACPI_VIDEO_S_DVI; | |
1825 | break; | |
1826 | default: | |
1827 | return -ENOSYS; | |
78f81cc4 BD |
1828 | } |
1829 | ||
1830 | return status; | |
1831 | } | |
1da177e4 | 1832 | |
83f34724 | 1833 | static int video_outputsw_set(int status) |
78f81cc4 | 1834 | { |
83f34724 HMH |
1835 | int autosw; |
1836 | int res = 0; | |
1837 | ||
1838 | switch (video_supported) { | |
1839 | case TPACPI_VIDEO_570: | |
1840 | res = acpi_evalf(NULL, NULL, | |
1841 | "\\_SB.PHS2", "vdd", | |
1842 | TP_ACPI_VIDEO_570_PHS2CMD, | |
1843 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
1844 | break; | |
1845 | case TPACPI_VIDEO_770: | |
1846 | autosw = video_autosw_get(); | |
1847 | if (autosw < 0) | |
1848 | return autosw; | |
1da177e4 | 1849 | |
83f34724 HMH |
1850 | res = video_autosw_set(1); |
1851 | if (res) | |
1852 | return res; | |
1853 | res = acpi_evalf(vid_handle, NULL, | |
1854 | "ASWT", "vdd", status * 0x100, 0); | |
1855 | if (!autosw && video_autosw_set(autosw)) { | |
1856 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1857 | return -EIO; | |
1858 | } | |
1859 | break; | |
1860 | case TPACPI_VIDEO_NEW: | |
1861 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
1862 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
1863 | break; | |
1864 | default: | |
1865 | return -ENOSYS; | |
1866 | } | |
1da177e4 | 1867 | |
83f34724 | 1868 | return (res)? 0 : -EIO; |
1da177e4 LT |
1869 | } |
1870 | ||
83f34724 | 1871 | static int video_autosw_get(void) |
78f81cc4 | 1872 | { |
83f34724 | 1873 | int autosw = 0; |
78f81cc4 | 1874 | |
83f34724 HMH |
1875 | switch (video_supported) { |
1876 | case TPACPI_VIDEO_570: | |
1877 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
1878 | return -EIO; | |
1879 | break; | |
1880 | case TPACPI_VIDEO_770: | |
1881 | case TPACPI_VIDEO_NEW: | |
1882 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
1883 | return -EIO; | |
1884 | break; | |
1885 | default: | |
1886 | return -ENOSYS; | |
1887 | } | |
78f81cc4 | 1888 | |
83f34724 | 1889 | return autosw & 1; |
78f81cc4 BD |
1890 | } |
1891 | ||
83f34724 | 1892 | static int video_autosw_set(int enable) |
78f81cc4 | 1893 | { |
83f34724 HMH |
1894 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
1895 | return -EIO; | |
1896 | return 0; | |
78f81cc4 BD |
1897 | } |
1898 | ||
83f34724 | 1899 | static int video_outputsw_cycle(void) |
78f81cc4 | 1900 | { |
83f34724 HMH |
1901 | int autosw = video_autosw_get(); |
1902 | int res; | |
78f81cc4 | 1903 | |
83f34724 HMH |
1904 | if (autosw < 0) |
1905 | return autosw; | |
78f81cc4 | 1906 | |
83f34724 HMH |
1907 | switch (video_supported) { |
1908 | case TPACPI_VIDEO_570: | |
1909 | res = video_autosw_set(1); | |
1910 | if (res) | |
1911 | return res; | |
1912 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
1913 | break; | |
1914 | case TPACPI_VIDEO_770: | |
1915 | case TPACPI_VIDEO_NEW: | |
1916 | res = video_autosw_set(1); | |
1917 | if (res) | |
1918 | return res; | |
1919 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
1920 | break; | |
1921 | default: | |
1922 | return -ENOSYS; | |
1923 | } | |
1924 | if (!autosw && video_autosw_set(autosw)) { | |
1925 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1926 | return -EIO; | |
78f81cc4 BD |
1927 | } |
1928 | ||
83f34724 HMH |
1929 | return (res)? 0 : -EIO; |
1930 | } | |
1931 | ||
1932 | static int video_expand_toggle(void) | |
1933 | { | |
1934 | switch (video_supported) { | |
1935 | case TPACPI_VIDEO_570: | |
1936 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
1937 | 0 : -EIO; | |
1938 | case TPACPI_VIDEO_770: | |
1939 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
1940 | 0 : -EIO; | |
1941 | case TPACPI_VIDEO_NEW: | |
1942 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
1943 | 0 : -EIO; | |
1944 | default: | |
1945 | return -ENOSYS; | |
1946 | } | |
1947 | /* not reached */ | |
78f81cc4 BD |
1948 | } |
1949 | ||
56b6aeb0 HMH |
1950 | static int video_read(char *p) |
1951 | { | |
83f34724 | 1952 | int status, autosw; |
56b6aeb0 HMH |
1953 | int len = 0; |
1954 | ||
83f34724 | 1955 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
1956 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1957 | return len; | |
1958 | } | |
1959 | ||
83f34724 HMH |
1960 | status = video_outputsw_get(); |
1961 | if (status < 0) | |
1962 | return status; | |
1963 | ||
1964 | autosw = video_autosw_get(); | |
1965 | if (autosw < 0) | |
1966 | return autosw; | |
1967 | ||
56b6aeb0 HMH |
1968 | len += sprintf(p + len, "status:\t\tsupported\n"); |
1969 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
1970 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 1971 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1972 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
1973 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
1974 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
1975 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 1976 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1977 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
1978 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
1979 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
1980 | ||
1981 | return len; | |
1982 | } | |
1983 | ||
78f81cc4 | 1984 | static int video_write(char *buf) |
1da177e4 LT |
1985 | { |
1986 | char *cmd; | |
1987 | int enable, disable, status; | |
83f34724 | 1988 | int res; |
1da177e4 | 1989 | |
83f34724 | 1990 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
1991 | return -ENODEV; |
1992 | ||
83f34724 HMH |
1993 | enable = 0; |
1994 | disable = 0; | |
1da177e4 LT |
1995 | |
1996 | while ((cmd = next_cmd(&buf))) { | |
1997 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 1998 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 1999 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 2000 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 2001 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 2002 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 2003 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 2004 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 2005 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 2006 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 2007 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 2008 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 2009 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 2010 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 2011 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
2012 | res = video_autosw_set(1); |
2013 | if (res) | |
2014 | return res; | |
1da177e4 | 2015 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
2016 | res = video_autosw_set(0); |
2017 | if (res) | |
2018 | return res; | |
1da177e4 | 2019 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
2020 | res = video_outputsw_cycle(); |
2021 | if (res) | |
2022 | return res; | |
1da177e4 | 2023 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
2024 | res = video_expand_toggle(); |
2025 | if (res) | |
2026 | return res; | |
1da177e4 LT |
2027 | } else |
2028 | return -EINVAL; | |
2029 | } | |
2030 | ||
2031 | if (enable || disable) { | |
83f34724 HMH |
2032 | status = video_outputsw_get(); |
2033 | if (status < 0) | |
2034 | return status; | |
2035 | res = video_outputsw_set((status & ~disable) | enable); | |
2036 | if (res) | |
2037 | return res; | |
1da177e4 LT |
2038 | } |
2039 | ||
2040 | return 0; | |
2041 | } | |
2042 | ||
a5763f22 HMH |
2043 | static struct ibm_struct video_driver_data = { |
2044 | .name = "video", | |
2045 | .read = video_read, | |
2046 | .write = video_write, | |
2047 | .exit = video_exit, | |
2048 | }; | |
2049 | ||
56b6aeb0 HMH |
2050 | /************************************************************************* |
2051 | * Light (thinklight) subdriver | |
2052 | */ | |
1da177e4 | 2053 | |
56b6aeb0 HMH |
2054 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
2055 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
2056 | ||
a5763f22 | 2057 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 2058 | { |
fe08bc4b HMH |
2059 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
2060 | ||
8d376cd6 HMH |
2061 | IBM_ACPIHANDLE_INIT(ledb); |
2062 | IBM_ACPIHANDLE_INIT(lght); | |
2063 | IBM_ACPIHANDLE_INIT(cmos); | |
5fba344c | 2064 | |
78f81cc4 | 2065 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 2066 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 2067 | |
d8fd94d9 | 2068 | if (tp_features.light) |
78f81cc4 BD |
2069 | /* light status not supported on |
2070 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
2071 | tp_features.light_status = |
2072 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 2073 | |
fe08bc4b | 2074 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 2075 | str_supported(tp_features.light)); |
fe08bc4b | 2076 | |
d8fd94d9 | 2077 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
2078 | } |
2079 | ||
78f81cc4 | 2080 | static int light_read(char *p) |
1da177e4 LT |
2081 | { |
2082 | int len = 0; | |
2083 | int status = 0; | |
2084 | ||
d8fd94d9 | 2085 | if (!tp_features.light) { |
78f81cc4 | 2086 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 2087 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
2088 | len += sprintf(p + len, "status:\t\tunknown\n"); |
2089 | len += sprintf(p + len, "commands:\ton, off\n"); | |
2090 | } else { | |
1da177e4 LT |
2091 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
2092 | return -EIO; | |
2093 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
2094 | len += sprintf(p + len, "commands:\ton, off\n"); |
2095 | } | |
1da177e4 LT |
2096 | |
2097 | return len; | |
2098 | } | |
2099 | ||
78f81cc4 | 2100 | static int light_write(char *buf) |
1da177e4 LT |
2101 | { |
2102 | int cmos_cmd, lght_cmd; | |
2103 | char *cmd; | |
2104 | int success; | |
78f81cc4 | 2105 | |
d8fd94d9 | 2106 | if (!tp_features.light) |
78f81cc4 BD |
2107 | return -ENODEV; |
2108 | ||
1da177e4 LT |
2109 | while ((cmd = next_cmd(&buf))) { |
2110 | if (strlencmp(cmd, "on") == 0) { | |
2111 | cmos_cmd = 0x0c; | |
2112 | lght_cmd = 1; | |
2113 | } else if (strlencmp(cmd, "off") == 0) { | |
2114 | cmos_cmd = 0x0d; | |
2115 | lght_cmd = 0; | |
2116 | } else | |
2117 | return -EINVAL; | |
78f81cc4 | 2118 | |
1da177e4 | 2119 | success = cmos_handle ? |
78f81cc4 BD |
2120 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
2121 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
2122 | if (!success) |
2123 | return -EIO; | |
2124 | } | |
2125 | ||
2126 | return 0; | |
2127 | } | |
2128 | ||
a5763f22 HMH |
2129 | static struct ibm_struct light_driver_data = { |
2130 | .name = "light", | |
2131 | .read = light_read, | |
2132 | .write = light_write, | |
2133 | }; | |
2134 | ||
56b6aeb0 HMH |
2135 | /************************************************************************* |
2136 | * Dock subdriver | |
2137 | */ | |
1da177e4 | 2138 | |
85998248 | 2139 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 HMH |
2140 | |
2141 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ | |
2142 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
2143 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
2144 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
2145 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
2146 | ||
5fba344c HMH |
2147 | /* don't list other alternatives as we install a notify handler on the 570 */ |
2148 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
2149 | ||
1ba90e3a TR |
2150 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
2151 | {PCI_ROOT_HID_STRING, 0}, | |
2152 | {"", 0}, | |
2153 | }; | |
2154 | ||
d94a7f16 HMH |
2155 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
2156 | { | |
2157 | .notify = dock_notify, | |
2158 | .handle = &dock_handle, | |
2159 | .type = ACPI_SYSTEM_NOTIFY, | |
2160 | }, | |
2161 | { | |
996fba08 HMH |
2162 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
2163 | * We just use it to get notifications of dock hotplug | |
2164 | * in very old thinkpads */ | |
1ba90e3a | 2165 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
2166 | .notify = dock_notify, |
2167 | .handle = &pci_handle, | |
2168 | .type = ACPI_SYSTEM_NOTIFY, | |
2169 | }, | |
2170 | }; | |
2171 | ||
2172 | static struct ibm_struct dock_driver_data[2] = { | |
2173 | { | |
2174 | .name = "dock", | |
2175 | .read = dock_read, | |
2176 | .write = dock_write, | |
2177 | .acpi = &ibm_dock_acpidriver[0], | |
2178 | }, | |
2179 | { | |
2180 | .name = "dock", | |
2181 | .acpi = &ibm_dock_acpidriver[1], | |
2182 | }, | |
2183 | }; | |
2184 | ||
1da177e4 LT |
2185 | #define dock_docked() (_sta(dock_handle) & 1) |
2186 | ||
a5763f22 | 2187 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 2188 | { |
fe08bc4b HMH |
2189 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
2190 | ||
8d376cd6 | 2191 | IBM_ACPIHANDLE_INIT(dock); |
5fba344c | 2192 | |
fe08bc4b HMH |
2193 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
2194 | str_supported(dock_handle != NULL)); | |
2195 | ||
5fba344c HMH |
2196 | return (dock_handle)? 0 : 1; |
2197 | } | |
2198 | ||
d94a7f16 HMH |
2199 | static int __init dock_init2(struct ibm_init_struct *iibm) |
2200 | { | |
2201 | int dock2_needed; | |
2202 | ||
2203 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
2204 | ||
2205 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
2206 | dock_driver_data[0].flags.acpi_notify_installed) { | |
2207 | IBM_ACPIHANDLE_INIT(pci); | |
2208 | dock2_needed = (pci_handle != NULL); | |
2209 | vdbg_printk(TPACPI_DBG_INIT, | |
2210 | "dock PCI handler for the TP 570 is %s\n", | |
2211 | str_supported(dock2_needed)); | |
2212 | } else { | |
2213 | vdbg_printk(TPACPI_DBG_INIT, | |
2214 | "dock subdriver part 2 not required\n"); | |
2215 | dock2_needed = 0; | |
2216 | } | |
2217 | ||
2218 | return (dock2_needed)? 0 : 1; | |
2219 | } | |
2220 | ||
56b6aeb0 HMH |
2221 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
2222 | { | |
2223 | int docked = dock_docked(); | |
1ba90e3a TR |
2224 | int pci = ibm->acpi->hid && ibm->acpi->device && |
2225 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
962ce8ca | 2226 | int data; |
56b6aeb0 HMH |
2227 | |
2228 | if (event == 1 && !pci) /* 570 */ | |
962ce8ca | 2229 | data = 1; /* button */ |
56b6aeb0 | 2230 | else if (event == 1 && pci) /* 570 */ |
962ce8ca | 2231 | data = 3; /* dock */ |
56b6aeb0 | 2232 | else if (event == 3 && docked) |
962ce8ca | 2233 | data = 1; /* button */ |
56b6aeb0 | 2234 | else if (event == 3 && !docked) |
962ce8ca | 2235 | data = 2; /* undock */ |
56b6aeb0 | 2236 | else if (event == 0 && docked) |
962ce8ca | 2237 | data = 3; /* dock */ |
56b6aeb0 HMH |
2238 | else { |
2239 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
2240 | event, _sta(dock_handle)); | |
962ce8ca | 2241 | data = 0; /* unknown */ |
56b6aeb0 | 2242 | } |
14e04fb3 | 2243 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
962ce8ca ZR |
2244 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
2245 | ibm->acpi->device->dev.bus_id, | |
2246 | event, data); | |
56b6aeb0 HMH |
2247 | } |
2248 | ||
78f81cc4 | 2249 | static int dock_read(char *p) |
1da177e4 LT |
2250 | { |
2251 | int len = 0; | |
2252 | int docked = dock_docked(); | |
2253 | ||
2254 | if (!dock_handle) | |
2255 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2256 | else if (!docked) | |
2257 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
2258 | else { | |
2259 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
2260 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
2261 | } | |
2262 | ||
2263 | return len; | |
2264 | } | |
2265 | ||
78f81cc4 | 2266 | static int dock_write(char *buf) |
1da177e4 LT |
2267 | { |
2268 | char *cmd; | |
2269 | ||
2270 | if (!dock_docked()) | |
78f81cc4 | 2271 | return -ENODEV; |
1da177e4 LT |
2272 | |
2273 | while ((cmd = next_cmd(&buf))) { | |
2274 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
2275 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
2276 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
2277 | return -EIO; |
2278 | } else if (strlencmp(cmd, "dock") == 0) { | |
2279 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
2280 | return -EIO; | |
2281 | } else | |
2282 | return -EINVAL; | |
1da177e4 | 2283 | } |
56b6aeb0 HMH |
2284 | |
2285 | return 0; | |
1da177e4 | 2286 | } |
56b6aeb0 | 2287 | |
85998248 | 2288 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
2289 | |
2290 | /************************************************************************* | |
2291 | * Bay subdriver | |
2292 | */ | |
1da177e4 | 2293 | |
85998248 | 2294 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
56b6aeb0 HMH |
2295 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
2296 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
2297 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
2298 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
2299 | ); /* A21e, R30, R31 */ | |
2300 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
2301 | "_EJ0", /* all others */ | |
2302 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
2303 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
2304 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
2305 | ); /* all others */ | |
2306 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
2307 | "_EJ0", /* 770x */ | |
2308 | ); /* all others */ | |
2309 | ||
a5763f22 | 2310 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 2311 | { |
fe08bc4b HMH |
2312 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
2313 | ||
8d376cd6 | 2314 | IBM_ACPIHANDLE_INIT(bay); |
5fba344c | 2315 | if (bay_handle) |
8d376cd6 HMH |
2316 | IBM_ACPIHANDLE_INIT(bay_ej); |
2317 | IBM_ACPIHANDLE_INIT(bay2); | |
5fba344c | 2318 | if (bay2_handle) |
8d376cd6 | 2319 | IBM_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 2320 | |
d8fd94d9 HMH |
2321 | tp_features.bay_status = bay_handle && |
2322 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
2323 | tp_features.bay_status2 = bay2_handle && | |
2324 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 2325 | |
d8fd94d9 HMH |
2326 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
2327 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
2328 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
2329 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 2330 | |
fe08bc4b HMH |
2331 | vdbg_printk(TPACPI_DBG_INIT, |
2332 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
2333 | str_supported(tp_features.bay_status), |
2334 | str_supported(tp_features.bay_eject), | |
2335 | str_supported(tp_features.bay_status2), | |
2336 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 2337 | |
d8fd94d9 HMH |
2338 | return (tp_features.bay_status || tp_features.bay_eject || |
2339 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
2340 | } |
2341 | ||
56b6aeb0 HMH |
2342 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
2343 | { | |
14e04fb3 | 2344 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
962ce8ca ZR |
2345 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
2346 | ibm->acpi->device->dev.bus_id, | |
2347 | event, 0); | |
56b6aeb0 HMH |
2348 | } |
2349 | ||
78f81cc4 BD |
2350 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
2351 | ||
2352 | static int bay_read(char *p) | |
1da177e4 LT |
2353 | { |
2354 | int len = 0; | |
78f81cc4 BD |
2355 | int occupied = bay_occupied(bay); |
2356 | int occupied2 = bay_occupied(bay2); | |
2357 | int eject, eject2; | |
2358 | ||
d8fd94d9 HMH |
2359 | len += sprintf(p + len, "status:\t\t%s\n", |
2360 | tp_features.bay_status ? | |
2361 | (occupied ? "occupied" : "unoccupied") : | |
2362 | "not supported"); | |
2363 | if (tp_features.bay_status2) | |
78f81cc4 BD |
2364 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
2365 | "occupied" : "unoccupied"); | |
2366 | ||
d8fd94d9 HMH |
2367 | eject = tp_features.bay_eject && occupied; |
2368 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
2369 | |
2370 | if (eject && eject2) | |
2371 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
2372 | else if (eject) | |
1da177e4 | 2373 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
2374 | else if (eject2) |
2375 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
2376 | |
2377 | return len; | |
2378 | } | |
2379 | ||
78f81cc4 | 2380 | static int bay_write(char *buf) |
1da177e4 LT |
2381 | { |
2382 | char *cmd; | |
2383 | ||
d8fd94d9 | 2384 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
2385 | return -ENODEV; |
2386 | ||
1da177e4 | 2387 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 2388 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
2389 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
2390 | return -EIO; | |
d8fd94d9 | 2391 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
2392 | strlencmp(cmd, "eject2") == 0) { |
2393 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
2394 | return -EIO; |
2395 | } else | |
2396 | return -EINVAL; | |
2397 | } | |
2398 | ||
2399 | return 0; | |
78f81cc4 | 2400 | } |
a5763f22 | 2401 | |
8d376cd6 HMH |
2402 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
2403 | .notify = bay_notify, | |
2404 | .handle = &bay_handle, | |
2405 | .type = ACPI_SYSTEM_NOTIFY, | |
2406 | }; | |
2407 | ||
a5763f22 HMH |
2408 | static struct ibm_struct bay_driver_data = { |
2409 | .name = "bay", | |
2410 | .read = bay_read, | |
2411 | .write = bay_write, | |
8d376cd6 | 2412 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
2413 | }; |
2414 | ||
85998248 | 2415 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 2416 | |
56b6aeb0 HMH |
2417 | /************************************************************************* |
2418 | * CMOS subdriver | |
2419 | */ | |
2420 | ||
b616004c HMH |
2421 | /* sysfs cmos_command -------------------------------------------------- */ |
2422 | static ssize_t cmos_command_store(struct device *dev, | |
2423 | struct device_attribute *attr, | |
2424 | const char *buf, size_t count) | |
2425 | { | |
2426 | unsigned long cmos_cmd; | |
2427 | int res; | |
2428 | ||
2429 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
2430 | return -EINVAL; | |
2431 | ||
2432 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
2433 | return (res)? res : count; | |
2434 | } | |
2435 | ||
2436 | static struct device_attribute dev_attr_cmos_command = | |
2437 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
2438 | ||
2439 | /* --------------------------------------------------------------------- */ | |
2440 | ||
a5763f22 | 2441 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 2442 | { |
b616004c HMH |
2443 | int res; |
2444 | ||
fe08bc4b HMH |
2445 | vdbg_printk(TPACPI_DBG_INIT, |
2446 | "initializing cmos commands subdriver\n"); | |
2447 | ||
8d376cd6 | 2448 | IBM_ACPIHANDLE_INIT(cmos); |
5fba344c | 2449 | |
fe08bc4b HMH |
2450 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
2451 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
2452 | |
2453 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
2454 | if (res) | |
2455 | return res; | |
2456 | ||
5fba344c HMH |
2457 | return (cmos_handle)? 0 : 1; |
2458 | } | |
2459 | ||
b616004c HMH |
2460 | static void cmos_exit(void) |
2461 | { | |
2462 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
2463 | } | |
2464 | ||
78f81cc4 | 2465 | static int cmos_read(char *p) |
1da177e4 LT |
2466 | { |
2467 | int len = 0; | |
2468 | ||
78f81cc4 BD |
2469 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2470 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
2471 | if (!cmos_handle) |
2472 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2473 | else { | |
2474 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 2475 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
2476 | } |
2477 | ||
2478 | return len; | |
2479 | } | |
2480 | ||
78f81cc4 | 2481 | static int cmos_write(char *buf) |
1da177e4 LT |
2482 | { |
2483 | char *cmd; | |
c9bea99c | 2484 | int cmos_cmd, res; |
1da177e4 LT |
2485 | |
2486 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
2487 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
2488 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
2489 | /* cmos_cmd set */ |
2490 | } else | |
2491 | return -EINVAL; | |
2492 | ||
c9bea99c HMH |
2493 | res = issue_thinkpad_cmos_command(cmos_cmd); |
2494 | if (res) | |
2495 | return res; | |
1da177e4 LT |
2496 | } |
2497 | ||
2498 | return 0; | |
78f81cc4 BD |
2499 | } |
2500 | ||
a5763f22 HMH |
2501 | static struct ibm_struct cmos_driver_data = { |
2502 | .name = "cmos", | |
2503 | .read = cmos_read, | |
2504 | .write = cmos_write, | |
b616004c | 2505 | .exit = cmos_exit, |
a5763f22 | 2506 | }; |
56b6aeb0 HMH |
2507 | |
2508 | /************************************************************************* | |
2509 | * LED subdriver | |
2510 | */ | |
2511 | ||
9a8e1738 | 2512 | static enum led_access_mode led_supported; |
78f81cc4 | 2513 | |
56b6aeb0 HMH |
2514 | IBM_HANDLE(led, ec, "SLED", /* 570 */ |
2515 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
2516 | "LED", /* all others */ | |
2517 | ); /* R30, R31 */ | |
2518 | ||
a5763f22 | 2519 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2520 | { |
fe08bc4b HMH |
2521 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
2522 | ||
8d376cd6 | 2523 | IBM_ACPIHANDLE_INIT(led); |
5fba344c | 2524 | |
78f81cc4 BD |
2525 | if (!led_handle) |
2526 | /* led not supported on R30, R31 */ | |
efa27145 | 2527 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
2528 | else if (strlencmp(led_path, "SLED") == 0) |
2529 | /* 570 */ | |
efa27145 | 2530 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
2531 | else if (strlencmp(led_path, "SYSL") == 0) |
2532 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 2533 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
2534 | else |
2535 | /* all others */ | |
efa27145 | 2536 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 2537 | |
fe08bc4b HMH |
2538 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
2539 | str_supported(led_supported), led_supported); | |
2540 | ||
5fba344c | 2541 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
2542 | } |
2543 | ||
2544 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
2545 | ||
2546 | static int led_read(char *p) | |
1da177e4 LT |
2547 | { |
2548 | int len = 0; | |
2549 | ||
78f81cc4 BD |
2550 | if (!led_supported) { |
2551 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2552 | return len; | |
2553 | } | |
2554 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2555 | ||
efa27145 | 2556 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2557 | /* 570 */ |
2558 | int i, status; | |
2559 | for (i = 0; i < 8; i++) { | |
2560 | if (!acpi_evalf(ec_handle, | |
2561 | &status, "GLED", "dd", 1 << i)) | |
2562 | return -EIO; | |
2563 | len += sprintf(p + len, "%d:\t\t%s\n", | |
2564 | i, led_status(status)); | |
2565 | } | |
2566 | } | |
2567 | ||
1da177e4 | 2568 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 2569 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
2570 | |
2571 | return len; | |
2572 | } | |
2573 | ||
78f81cc4 BD |
2574 | /* off, on, blink */ |
2575 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
2576 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
2577 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
2578 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
2579 | ||
78f81cc4 | 2580 | static int led_write(char *buf) |
1da177e4 LT |
2581 | { |
2582 | char *cmd; | |
78f81cc4 BD |
2583 | int led, ind, ret; |
2584 | ||
2585 | if (!led_supported) | |
2586 | return -ENODEV; | |
1da177e4 LT |
2587 | |
2588 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 2589 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
2590 | return -EINVAL; |
2591 | ||
78f81cc4 BD |
2592 | if (strstr(cmd, "off")) { |
2593 | ind = 0; | |
1da177e4 | 2594 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
2595 | ind = 1; |
2596 | } else if (strstr(cmd, "blink")) { | |
2597 | ind = 2; | |
1da177e4 LT |
2598 | } else |
2599 | return -EINVAL; | |
78f81cc4 | 2600 | |
efa27145 | 2601 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2602 | /* 570 */ |
2603 | led = 1 << led; | |
1da177e4 | 2604 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 2605 | led, led_sled_arg1[ind])) |
1da177e4 | 2606 | return -EIO; |
efa27145 | 2607 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
2608 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
2609 | led = 1 << led; | |
efa27145 | 2610 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
2611 | if (ret >= 0) |
2612 | ret = | |
efa27145 | 2613 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 2614 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
2615 | if (ret >= 0) |
2616 | ret = | |
efa27145 | 2617 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 2618 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
2619 | if (ret < 0) |
2620 | return ret; | |
2621 | } else { | |
2622 | /* all others */ | |
2623 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
2624 | led, led_led_arg1[ind])) | |
1da177e4 | 2625 | return -EIO; |
78f81cc4 BD |
2626 | } |
2627 | } | |
2628 | ||
2629 | return 0; | |
2630 | } | |
2631 | ||
a5763f22 HMH |
2632 | static struct ibm_struct led_driver_data = { |
2633 | .name = "led", | |
2634 | .read = led_read, | |
2635 | .write = led_write, | |
2636 | }; | |
2637 | ||
56b6aeb0 HMH |
2638 | /************************************************************************* |
2639 | * Beep subdriver | |
2640 | */ | |
2641 | ||
2642 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
2643 | ||
a5763f22 | 2644 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 2645 | { |
fe08bc4b HMH |
2646 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
2647 | ||
8d376cd6 | 2648 | IBM_ACPIHANDLE_INIT(beep); |
5fba344c | 2649 | |
fe08bc4b HMH |
2650 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
2651 | str_supported(beep_handle != NULL)); | |
2652 | ||
5fba344c HMH |
2653 | return (beep_handle)? 0 : 1; |
2654 | } | |
2655 | ||
78f81cc4 BD |
2656 | static int beep_read(char *p) |
2657 | { | |
2658 | int len = 0; | |
2659 | ||
2660 | if (!beep_handle) | |
2661 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2662 | else { | |
2663 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2664 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
2665 | } | |
2666 | ||
2667 | return len; | |
2668 | } | |
2669 | ||
2670 | static int beep_write(char *buf) | |
2671 | { | |
2672 | char *cmd; | |
2673 | int beep_cmd; | |
2674 | ||
2675 | if (!beep_handle) | |
2676 | return -ENODEV; | |
2677 | ||
2678 | while ((cmd = next_cmd(&buf))) { | |
2679 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
2680 | beep_cmd >= 0 && beep_cmd <= 17) { | |
2681 | /* beep_cmd set */ | |
2682 | } else | |
2683 | return -EINVAL; | |
2684 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
2685 | return -EIO; | |
2686 | } | |
2687 | ||
2688 | return 0; | |
2689 | } | |
2690 | ||
a5763f22 HMH |
2691 | static struct ibm_struct beep_driver_data = { |
2692 | .name = "beep", | |
2693 | .read = beep_read, | |
2694 | .write = beep_write, | |
2695 | }; | |
2696 | ||
56b6aeb0 HMH |
2697 | /************************************************************************* |
2698 | * Thermal subdriver | |
2699 | */ | |
78f81cc4 | 2700 | |
a26f878a | 2701 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 2702 | |
2c37aa4e HMH |
2703 | /* sysfs temp##_input -------------------------------------------------- */ |
2704 | ||
2705 | static ssize_t thermal_temp_input_show(struct device *dev, | |
2706 | struct device_attribute *attr, | |
2707 | char *buf) | |
2708 | { | |
2709 | struct sensor_device_attribute *sensor_attr = | |
2710 | to_sensor_dev_attr(attr); | |
2711 | int idx = sensor_attr->index; | |
2712 | s32 value; | |
2713 | int res; | |
2714 | ||
2715 | res = thermal_get_sensor(idx, &value); | |
2716 | if (res) | |
2717 | return res; | |
2718 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
2719 | return -ENXIO; | |
2720 | ||
2721 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
2722 | } | |
2723 | ||
2724 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
2725 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB) | |
2726 | ||
2727 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
2728 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
2729 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
2730 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
2731 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
2732 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
2733 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
2734 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
2735 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
2736 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
2737 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
2738 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
2739 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
2740 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
2741 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
2742 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
2743 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
2744 | }; | |
2745 | ||
2746 | #define THERMAL_ATTRS(X) \ | |
2747 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
2748 | ||
2749 | static struct attribute *thermal_temp_input_attr[] = { | |
2750 | THERMAL_ATTRS(8), | |
2751 | THERMAL_ATTRS(9), | |
2752 | THERMAL_ATTRS(10), | |
2753 | THERMAL_ATTRS(11), | |
2754 | THERMAL_ATTRS(12), | |
2755 | THERMAL_ATTRS(13), | |
2756 | THERMAL_ATTRS(14), | |
2757 | THERMAL_ATTRS(15), | |
2758 | THERMAL_ATTRS(0), | |
2759 | THERMAL_ATTRS(1), | |
2760 | THERMAL_ATTRS(2), | |
2761 | THERMAL_ATTRS(3), | |
2762 | THERMAL_ATTRS(4), | |
2763 | THERMAL_ATTRS(5), | |
2764 | THERMAL_ATTRS(6), | |
2765 | THERMAL_ATTRS(7), | |
2766 | NULL | |
2767 | }; | |
2768 | ||
2769 | static const struct attribute_group thermal_temp_input16_group = { | |
2770 | .attrs = thermal_temp_input_attr | |
2771 | }; | |
2772 | ||
2773 | static const struct attribute_group thermal_temp_input8_group = { | |
2774 | .attrs = &thermal_temp_input_attr[8] | |
2775 | }; | |
2776 | ||
2777 | #undef THERMAL_SENSOR_ATTR_TEMP | |
2778 | #undef THERMAL_ATTRS | |
2779 | ||
2780 | /* --------------------------------------------------------------------- */ | |
2781 | ||
a5763f22 | 2782 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2783 | { |
60eb0b35 HMH |
2784 | u8 t, ta1, ta2; |
2785 | int i; | |
5fba344c | 2786 | int acpi_tmp7; |
2c37aa4e | 2787 | int res; |
5fba344c | 2788 | |
fe08bc4b HMH |
2789 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
2790 | ||
5fba344c | 2791 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 2792 | |
3d6f99ca | 2793 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
2794 | /* |
2795 | * Direct EC access mode: sensors at registers | |
2796 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
2797 | * non-implemented, thermal sensors return 0x80 when | |
2798 | * not available | |
2799 | */ | |
78f81cc4 | 2800 | |
60eb0b35 HMH |
2801 | ta1 = ta2 = 0; |
2802 | for (i = 0; i < 8; i++) { | |
04cc862c | 2803 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
2804 | ta1 |= t; |
2805 | } else { | |
2806 | ta1 = 0; | |
2807 | break; | |
2808 | } | |
04cc862c | 2809 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
2810 | ta2 |= t; |
2811 | } else { | |
2812 | ta1 = 0; | |
2813 | break; | |
2814 | } | |
2815 | } | |
2816 | if (ta1 == 0) { | |
2817 | /* This is sheer paranoia, but we handle it anyway */ | |
2818 | if (acpi_tmp7) { | |
2819 | printk(IBM_ERR | |
2820 | "ThinkPad ACPI EC access misbehaving, " | |
2821 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 2822 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 HMH |
2823 | } else { |
2824 | printk(IBM_ERR | |
2825 | "ThinkPad ACPI EC access misbehaving, " | |
2826 | "disabling thermal sensors access\n"); | |
efa27145 | 2827 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
2828 | } |
2829 | } else { | |
2830 | thermal_read_mode = | |
2831 | (ta2 != 0) ? | |
efa27145 | 2832 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
2833 | } |
2834 | } else if (acpi_tmp7) { | |
a26f878a HMH |
2835 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
2836 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2837 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
2838 | } else { |
2839 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 2840 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
2841 | } |
2842 | } else { | |
2843 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 2844 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 2845 | } |
78f81cc4 | 2846 | |
fe08bc4b HMH |
2847 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
2848 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
2849 | thermal_read_mode); | |
2850 | ||
2c37aa4e HMH |
2851 | switch(thermal_read_mode) { |
2852 | case TPACPI_THERMAL_TPEC_16: | |
2853 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2854 | &thermal_temp_input16_group); | |
2855 | if (res) | |
2856 | return res; | |
2857 | break; | |
2858 | case TPACPI_THERMAL_TPEC_8: | |
2859 | case TPACPI_THERMAL_ACPI_TMP07: | |
2860 | case TPACPI_THERMAL_ACPI_UPDT: | |
2861 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2862 | &thermal_temp_input8_group); | |
2863 | if (res) | |
2864 | return res; | |
2865 | break; | |
2866 | case TPACPI_THERMAL_NONE: | |
2867 | default: | |
2868 | return 1; | |
2869 | } | |
2870 | ||
2871 | return 0; | |
2872 | } | |
2873 | ||
2874 | static void thermal_exit(void) | |
2875 | { | |
2876 | switch(thermal_read_mode) { | |
2877 | case TPACPI_THERMAL_TPEC_16: | |
2878 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2879 | &thermal_temp_input16_group); | |
2880 | break; | |
2881 | case TPACPI_THERMAL_TPEC_8: | |
2882 | case TPACPI_THERMAL_ACPI_TMP07: | |
2883 | case TPACPI_THERMAL_ACPI_UPDT: | |
2884 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2885 | &thermal_temp_input16_group); | |
2886 | break; | |
2887 | case TPACPI_THERMAL_NONE: | |
2888 | default: | |
2889 | break; | |
2890 | } | |
78f81cc4 BD |
2891 | } |
2892 | ||
04cc862c HMH |
2893 | /* idx is zero-based */ |
2894 | static int thermal_get_sensor(int idx, s32 *value) | |
78f81cc4 | 2895 | { |
04cc862c | 2896 | int t; |
60eb0b35 | 2897 | s8 tmp; |
04cc862c | 2898 | char tmpi[5]; |
78f81cc4 | 2899 | |
04cc862c | 2900 | t = TP_EC_THERMAL_TMP0; |
78f81cc4 | 2901 | |
a26f878a | 2902 | switch (thermal_read_mode) { |
efa27145 HMH |
2903 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 |
2904 | case TPACPI_THERMAL_TPEC_16: | |
04cc862c HMH |
2905 | if (idx >= 8 && idx <= 15) { |
2906 | t = TP_EC_THERMAL_TMP8; | |
2907 | idx -= 8; | |
60eb0b35 HMH |
2908 | } |
2909 | /* fallthrough */ | |
2910 | #endif | |
efa27145 | 2911 | case TPACPI_THERMAL_TPEC_8: |
04cc862c HMH |
2912 | if (idx <= 7) { |
2913 | if (!acpi_ec_read(t + idx, &tmp)) | |
78f81cc4 | 2914 | return -EIO; |
04cc862c HMH |
2915 | *value = tmp * 1000; |
2916 | return 0; | |
60eb0b35 | 2917 | } |
04cc862c | 2918 | break; |
78f81cc4 | 2919 | |
efa27145 | 2920 | case TPACPI_THERMAL_ACPI_UPDT: |
04cc862c HMH |
2921 | if (idx <= 7) { |
2922 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
2923 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
2924 | return -EIO; | |
78f81cc4 BD |
2925 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
2926 | return -EIO; | |
04cc862c HMH |
2927 | *value = (t - 2732) * 100; |
2928 | return 0; | |
78f81cc4 | 2929 | } |
04cc862c | 2930 | break; |
78f81cc4 | 2931 | |
efa27145 | 2932 | case TPACPI_THERMAL_ACPI_TMP07: |
04cc862c HMH |
2933 | if (idx <= 7) { |
2934 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
78f81cc4 BD |
2935 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
2936 | return -EIO; | |
a8fba3da HMH |
2937 | if (t > 127 || t < -127) |
2938 | t = TP_EC_THERMAL_TMP_NA; | |
04cc862c HMH |
2939 | *value = t * 1000; |
2940 | return 0; | |
78f81cc4 | 2941 | } |
04cc862c | 2942 | break; |
78f81cc4 | 2943 | |
efa27145 | 2944 | case TPACPI_THERMAL_NONE: |
a26f878a | 2945 | default: |
04cc862c HMH |
2946 | return -ENOSYS; |
2947 | } | |
2948 | ||
2949 | return -EINVAL; | |
2950 | } | |
2951 | ||
2952 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
2953 | { | |
2954 | int res, i; | |
2955 | int n; | |
2956 | ||
2957 | n = 8; | |
2958 | i = 0; | |
2959 | ||
2960 | if (!s) | |
2961 | return -EINVAL; | |
2962 | ||
2963 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
2964 | n = 16; | |
2965 | ||
2966 | for(i = 0 ; i < n; i++) { | |
2967 | res = thermal_get_sensor(i, &s->temp[i]); | |
2968 | if (res) | |
2969 | return res; | |
78f81cc4 | 2970 | } |
04cc862c HMH |
2971 | |
2972 | return n; | |
a26f878a HMH |
2973 | } |
2974 | ||
2975 | static int thermal_read(char *p) | |
2976 | { | |
2977 | int len = 0; | |
2978 | int n, i; | |
2979 | struct ibm_thermal_sensors_struct t; | |
2980 | ||
2981 | n = thermal_get_sensors(&t); | |
2982 | if (unlikely(n < 0)) | |
2983 | return n; | |
2984 | ||
2985 | len += sprintf(p + len, "temperatures:\t"); | |
2986 | ||
2987 | if (n > 0) { | |
2988 | for (i = 0; i < (n - 1); i++) | |
2989 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
2990 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
2991 | } else | |
2992 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
2993 | |
2994 | return len; | |
2995 | } | |
2996 | ||
a5763f22 HMH |
2997 | static struct ibm_struct thermal_driver_data = { |
2998 | .name = "thermal", | |
2999 | .read = thermal_read, | |
2c37aa4e | 3000 | .exit = thermal_exit, |
a5763f22 HMH |
3001 | }; |
3002 | ||
56b6aeb0 HMH |
3003 | /************************************************************************* |
3004 | * EC Dump subdriver | |
3005 | */ | |
3006 | ||
78f81cc4 BD |
3007 | static u8 ecdump_regs[256]; |
3008 | ||
3009 | static int ecdump_read(char *p) | |
3010 | { | |
3011 | int len = 0; | |
3012 | int i, j; | |
3013 | u8 v; | |
3014 | ||
3015 | len += sprintf(p + len, "EC " | |
3016 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
3017 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
3018 | for (i = 0; i < 256; i += 16) { | |
3019 | len += sprintf(p + len, "EC 0x%02x:", i); | |
3020 | for (j = 0; j < 16; j++) { | |
3021 | if (!acpi_ec_read(i + j, &v)) | |
3022 | break; | |
3023 | if (v != ecdump_regs[i + j]) | |
3024 | len += sprintf(p + len, " *%02x", v); | |
3025 | else | |
3026 | len += sprintf(p + len, " %02x", v); | |
3027 | ecdump_regs[i + j] = v; | |
3028 | } | |
3029 | len += sprintf(p + len, "\n"); | |
3030 | if (j != 16) | |
3031 | break; | |
3032 | } | |
3033 | ||
3034 | /* These are way too dangerous to advertise openly... */ | |
3035 | #if 0 | |
3036 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
3037 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
3038 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
3039 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
3040 | #endif | |
3041 | return len; | |
3042 | } | |
3043 | ||
3044 | static int ecdump_write(char *buf) | |
3045 | { | |
3046 | char *cmd; | |
3047 | int i, v; | |
3048 | ||
3049 | while ((cmd = next_cmd(&buf))) { | |
3050 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
3051 | /* i and v set */ | |
3052 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
3053 | /* i and v set */ | |
3054 | } else | |
3055 | return -EINVAL; | |
3056 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
3057 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
3058 | return -EIO; |
3059 | } else | |
3060 | return -EINVAL; | |
3061 | } | |
3062 | ||
3063 | return 0; | |
78f81cc4 BD |
3064 | } |
3065 | ||
a5763f22 HMH |
3066 | static struct ibm_struct ecdump_driver_data = { |
3067 | .name = "ecdump", | |
3068 | .read = ecdump_read, | |
3069 | .write = ecdump_write, | |
92641177 | 3070 | .flags.experimental = 1, |
a5763f22 HMH |
3071 | }; |
3072 | ||
56b6aeb0 HMH |
3073 | /************************************************************************* |
3074 | * Backlight/brightness subdriver | |
3075 | */ | |
3076 | ||
94954cc6 | 3077 | static struct backlight_device *ibm_backlight_device; |
56b6aeb0 HMH |
3078 | |
3079 | static struct backlight_ops ibm_backlight_data = { | |
3080 | .get_brightness = brightness_get, | |
3081 | .update_status = brightness_update_status, | |
3082 | }; | |
3083 | ||
f432255e HMH |
3084 | static struct mutex brightness_mutex; |
3085 | ||
a5763f22 | 3086 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
3087 | { |
3088 | int b; | |
3089 | ||
fe08bc4b HMH |
3090 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
3091 | ||
f432255e HMH |
3092 | mutex_init(&brightness_mutex); |
3093 | ||
24d3b774 HMH |
3094 | if (!brightness_mode) { |
3095 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
3096 | brightness_mode = 2; | |
3097 | else | |
3098 | brightness_mode = 3; | |
3099 | ||
3100 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
3101 | brightness_mode); | |
3102 | } | |
3103 | ||
3104 | if (brightness_mode > 3) | |
3105 | return -EINVAL; | |
3106 | ||
56b6aeb0 HMH |
3107 | b = brightness_get(NULL); |
3108 | if (b < 0) | |
24d3b774 | 3109 | return 1; |
56b6aeb0 | 3110 | |
7d5a015e HMH |
3111 | ibm_backlight_device = backlight_device_register( |
3112 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
3113 | &ibm_backlight_data); | |
56b6aeb0 HMH |
3114 | if (IS_ERR(ibm_backlight_device)) { |
3115 | printk(IBM_ERR "Could not register backlight device\n"); | |
3116 | return PTR_ERR(ibm_backlight_device); | |
3117 | } | |
fe08bc4b | 3118 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 HMH |
3119 | |
3120 | ibm_backlight_device->props.max_brightness = 7; | |
3121 | ibm_backlight_device->props.brightness = b; | |
3122 | backlight_update_status(ibm_backlight_device); | |
3123 | ||
3124 | return 0; | |
3125 | } | |
3126 | ||
3127 | static void brightness_exit(void) | |
3128 | { | |
3129 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
3130 | vdbg_printk(TPACPI_DBG_EXIT, |
3131 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
3132 | backlight_device_unregister(ibm_backlight_device); |
3133 | ibm_backlight_device = NULL; | |
3134 | } | |
3135 | } | |
3136 | ||
3137 | static int brightness_update_status(struct backlight_device *bd) | |
3138 | { | |
3139 | return brightness_set( | |
3140 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
3141 | bd->props.power == FB_BLANK_UNBLANK) ? | |
3142 | bd->props.brightness : 0); | |
3143 | } | |
3144 | ||
24d3b774 HMH |
3145 | /* |
3146 | * ThinkPads can read brightness from two places: EC 0x31, or | |
3147 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
3148 | */ | |
8acb0250 HM |
3149 | static int brightness_get(struct backlight_device *bd) |
3150 | { | |
24d3b774 | 3151 | u8 lec = 0, lcmos = 0, level = 0; |
8acb0250 | 3152 | |
24d3b774 HMH |
3153 | if (brightness_mode & 1) { |
3154 | if (!acpi_ec_read(brightness_offset, &lec)) | |
3155 | return -EIO; | |
3156 | lec &= 7; | |
3157 | level = lec; | |
3158 | }; | |
3159 | if (brightness_mode & 2) { | |
3160 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
3161 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
3162 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
3163 | level = lcmos; | |
3164 | } | |
3165 | ||
3166 | if (brightness_mode == 3 && lec != lcmos) { | |
3167 | printk(IBM_ERR | |
3168 | "CMOS NVRAM (%u) and EC (%u) do not agree " | |
3169 | "on display brightness level\n", | |
3170 | (unsigned int) lcmos, | |
3171 | (unsigned int) lec); | |
3172 | return -EIO; | |
3173 | } | |
fb87a811 | 3174 | |
8d297264 | 3175 | return level; |
8acb0250 HM |
3176 | } |
3177 | ||
8acb0250 | 3178 | static int brightness_set(int value) |
1da177e4 | 3179 | { |
f432255e HMH |
3180 | int cmos_cmd, inc, i, res; |
3181 | int current_value; | |
8acb0250 | 3182 | |
24d3b774 HMH |
3183 | if (value > 7) |
3184 | return -EINVAL; | |
8acb0250 | 3185 | |
f432255e HMH |
3186 | res = mutex_lock_interruptible(&brightness_mutex); |
3187 | if (res < 0) | |
3188 | return res; | |
3189 | ||
3190 | current_value = brightness_get(NULL); | |
3191 | if (current_value < 0) { | |
3192 | res = current_value; | |
3193 | goto errout; | |
3194 | } | |
3195 | ||
24d3b774 HMH |
3196 | cmos_cmd = value > current_value ? |
3197 | TP_CMOS_BRIGHTNESS_UP : | |
3198 | TP_CMOS_BRIGHTNESS_DOWN; | |
8acb0250 | 3199 | inc = value > current_value ? 1 : -1; |
24d3b774 | 3200 | |
f432255e | 3201 | res = 0; |
8acb0250 | 3202 | for (i = current_value; i != value; i += inc) { |
24d3b774 | 3203 | if ((brightness_mode & 2) && |
f432255e HMH |
3204 | issue_thinkpad_cmos_command(cmos_cmd)) { |
3205 | res = -EIO; | |
3206 | goto errout; | |
3207 | } | |
24d3b774 | 3208 | if ((brightness_mode & 1) && |
f432255e HMH |
3209 | !acpi_ec_write(brightness_offset, i + inc)) { |
3210 | res = -EIO; | |
3211 | goto errout;; | |
3212 | } | |
8acb0250 HM |
3213 | } |
3214 | ||
f432255e HMH |
3215 | errout: |
3216 | mutex_unlock(&brightness_mutex); | |
3217 | return res; | |
8acb0250 HM |
3218 | } |
3219 | ||
56b6aeb0 HMH |
3220 | static int brightness_read(char *p) |
3221 | { | |
3222 | int len = 0; | |
3223 | int level; | |
3224 | ||
3225 | if ((level = brightness_get(NULL)) < 0) { | |
3226 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
3227 | } else { | |
3228 | len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); | |
3229 | len += sprintf(p + len, "commands:\tup, down\n"); | |
3230 | len += sprintf(p + len, "commands:\tlevel <level>" | |
3231 | " (<level> is 0-7)\n"); | |
3232 | } | |
3233 | ||
3234 | return len; | |
3235 | } | |
3236 | ||
8acb0250 HM |
3237 | static int brightness_write(char *buf) |
3238 | { | |
3239 | int level; | |
78f81cc4 | 3240 | int new_level; |
1da177e4 | 3241 | char *cmd; |
1da177e4 LT |
3242 | |
3243 | while ((cmd = next_cmd(&buf))) { | |
8acb0250 HM |
3244 | if ((level = brightness_get(NULL)) < 0) |
3245 | return level; | |
78f81cc4 BD |
3246 | level &= 7; |
3247 | ||
3248 | if (strlencmp(cmd, "up") == 0) { | |
3249 | new_level = level == 7 ? 7 : level + 1; | |
3250 | } else if (strlencmp(cmd, "down") == 0) { | |
3251 | new_level = level == 0 ? 0 : level - 1; | |
3252 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
3253 | new_level >= 0 && new_level <= 7) { | |
3254 | /* new_level set */ | |
3255 | } else | |
3256 | return -EINVAL; | |
3257 | ||
8acb0250 | 3258 | brightness_set(new_level); |
78f81cc4 BD |
3259 | } |
3260 | ||
3261 | return 0; | |
3262 | } | |
3263 | ||
a5763f22 HMH |
3264 | static struct ibm_struct brightness_driver_data = { |
3265 | .name = "brightness", | |
3266 | .read = brightness_read, | |
3267 | .write = brightness_write, | |
3268 | .exit = brightness_exit, | |
3269 | }; | |
3270 | ||
56b6aeb0 HMH |
3271 | /************************************************************************* |
3272 | * Volume subdriver | |
3273 | */ | |
fb87a811 | 3274 | |
78f81cc4 BD |
3275 | static int volume_read(char *p) |
3276 | { | |
3277 | int len = 0; | |
3278 | u8 level; | |
3279 | ||
3280 | if (!acpi_ec_read(volume_offset, &level)) { | |
3281 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
3282 | } else { | |
3283 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
3284 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
3285 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
3286 | len += sprintf(p + len, "commands:\tlevel <level>" | |
3287 | " (<level> is 0-15)\n"); | |
3288 | } | |
3289 | ||
3290 | return len; | |
3291 | } | |
3292 | ||
78f81cc4 BD |
3293 | static int volume_write(char *buf) |
3294 | { | |
3295 | int cmos_cmd, inc, i; | |
3296 | u8 level, mute; | |
3297 | int new_level, new_mute; | |
3298 | char *cmd; | |
3299 | ||
3300 | while ((cmd = next_cmd(&buf))) { | |
3301 | if (!acpi_ec_read(volume_offset, &level)) | |
3302 | return -EIO; | |
3303 | new_mute = mute = level & 0x40; | |
3304 | new_level = level = level & 0xf; | |
3305 | ||
3306 | if (strlencmp(cmd, "up") == 0) { | |
3307 | if (mute) | |
3308 | new_mute = 0; | |
3309 | else | |
3310 | new_level = level == 15 ? 15 : level + 1; | |
3311 | } else if (strlencmp(cmd, "down") == 0) { | |
3312 | if (mute) | |
3313 | new_mute = 0; | |
3314 | else | |
3315 | new_level = level == 0 ? 0 : level - 1; | |
3316 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
3317 | new_level >= 0 && new_level <= 15) { | |
3318 | /* new_level set */ | |
3319 | } else if (strlencmp(cmd, "mute") == 0) { | |
3320 | new_mute = 0x40; | |
1da177e4 LT |
3321 | } else |
3322 | return -EINVAL; | |
3323 | ||
78f81cc4 | 3324 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 3325 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
3326 | inc = new_level > level ? 1 : -1; |
3327 | ||
c9bea99c | 3328 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
3329 | !acpi_ec_write(volume_offset, level))) |
3330 | return -EIO; | |
3331 | ||
3332 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 3333 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
3334 | !acpi_ec_write(volume_offset, i + inc)) |
3335 | return -EIO; | |
3336 | ||
c9bea99c | 3337 | if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
3338 | !acpi_ec_write(volume_offset, |
3339 | new_level + mute))) | |
3340 | return -EIO; | |
3341 | } | |
3342 | ||
3343 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 3344 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 | 3345 | |
c9bea99c | 3346 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
3347 | !acpi_ec_write(volume_offset, level + new_mute)) |
3348 | return -EIO; | |
3349 | } | |
3350 | } | |
3351 | ||
3352 | return 0; | |
3353 | } | |
3354 | ||
a5763f22 HMH |
3355 | static struct ibm_struct volume_driver_data = { |
3356 | .name = "volume", | |
3357 | .read = volume_read, | |
3358 | .write = volume_write, | |
3359 | }; | |
56b6aeb0 HMH |
3360 | |
3361 | /************************************************************************* | |
3362 | * Fan subdriver | |
3363 | */ | |
3364 | ||
3365 | /* | |
3366 | * FAN ACCESS MODES | |
3367 | * | |
efa27145 | 3368 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
3369 | * ACPI GFAN method: returns fan level |
3370 | * | |
efa27145 | 3371 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 3372 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 3373 | * |
efa27145 | 3374 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
3375 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
3376 | * | |
f51d1a39 HMH |
3377 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
3378 | * it for writing. | |
56b6aeb0 | 3379 | * |
efa27145 | 3380 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
3381 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
3382 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
3383 | * |
3384 | * Fan speed changes of any sort (including those caused by the | |
3385 | * disengaged mode) are usually done slowly by the firmware as the | |
3386 | * maximum ammount of fan duty cycle change per second seems to be | |
3387 | * limited. | |
3388 | * | |
3389 | * Reading is not available if GFAN exists. | |
3390 | * Writing is not available if SFAN exists. | |
3391 | * | |
3392 | * Bits | |
3393 | * 7 automatic mode engaged; | |
3394 | * (default operation mode of the ThinkPad) | |
3395 | * fan level is ignored in this mode. | |
f51d1a39 | 3396 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 3397 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
3398 | * the tachometer while the fan controller ramps up |
3399 | * the speed (which can take up to a few *minutes*). | |
3400 | * Speeds up fan to 100% duty-cycle, which is far above | |
3401 | * the standard RPM levels. It is not impossible that | |
3402 | * it could cause hardware damage. | |
56b6aeb0 HMH |
3403 | * 5-3 unused in some models. Extra bits for fan level |
3404 | * in others, but still useless as all values above | |
3405 | * 7 map to the same speed as level 7 in these models. | |
3406 | * 2-0 fan level (0..7 usually) | |
3407 | * 0x00 = stop | |
3408 | * 0x07 = max (set when temperatures critical) | |
3409 | * Some ThinkPads may have other levels, see | |
efa27145 | 3410 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
3411 | * |
3412 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
3413 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
3414 | * does so, its initial value is meaningless (0x07). | |
3415 | * | |
3416 | * For firmware bugs, refer to: | |
3417 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
3418 | * | |
3419 | * ---- | |
3420 | * | |
3421 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
3422 | * Main fan tachometer reading (in RPM) | |
3423 | * | |
3424 | * This register is present on all ThinkPads with a new-style EC, and | |
3425 | * it is known not to be present on the A21m/e, and T22, as there is | |
3426 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
3427 | * ThinkPads from this same time period (and earlier) probably lack the | |
3428 | * tachometer as well. | |
3429 | * | |
3430 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
3431 | * was never fixed by IBM to report the EC firmware version string | |
3432 | * probably support the tachometer (like the early X models), so | |
3433 | * detecting it is quite hard. We need more data to know for sure. | |
3434 | * | |
3435 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
3436 | * might result. | |
3437 | * | |
f51d1a39 HMH |
3438 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
3439 | * mode. | |
56b6aeb0 HMH |
3440 | * |
3441 | * For firmware bugs, refer to: | |
3442 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
3443 | * | |
efa27145 | 3444 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
3445 | * ThinkPad X31, X40, X41. Not available in the X60. |
3446 | * | |
3447 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
3448 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
3449 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
3450 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
3451 | * | |
3452 | * The speeds are stored on handles | |
3453 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
3454 | * | |
3455 | * There are three default speed sets, acessible as handles: | |
3456 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
3457 | * | |
3458 | * ACPI DSDT switches which set is in use depending on various | |
3459 | * factors. | |
3460 | * | |
efa27145 | 3461 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
3462 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
3463 | * but the ACPI tables just mention level 7. | |
3464 | */ | |
3465 | ||
69ba91cb HMH |
3466 | static enum fan_status_access_mode fan_status_access_mode; |
3467 | static enum fan_control_access_mode fan_control_access_mode; | |
3468 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 3469 | |
778b4d74 | 3470 | static u8 fan_control_initial_status; |
fe98a52c | 3471 | static u8 fan_control_desired_level; |
778b4d74 | 3472 | |
25c68a33 | 3473 | static void fan_watchdog_fire(struct work_struct *ignored); |
16663a87 | 3474 | static int fan_watchdog_maxinterval; |
25c68a33 | 3475 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 3476 | |
56b6aeb0 HMH |
3477 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
3478 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
3479 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
3480 | ); /* all others */ | |
3481 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
3482 | "JFNS", /* 770x-JL */ | |
3483 | ); /* all others */ | |
3484 | ||
fe98a52c HMH |
3485 | /* |
3486 | * SYSFS fan layout: hwmon compatible (device) | |
3487 | * | |
3488 | * pwm*_enable: | |
3489 | * 0: "disengaged" mode | |
3490 | * 1: manual mode | |
3491 | * 2: native EC "auto" mode (recommended, hardware default) | |
3492 | * | |
3493 | * pwm*: set speed in manual mode, ignored otherwise. | |
3494 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
3495 | * interpolation. | |
3496 | * | |
3497 | * fan*_input: tachometer reading, RPM | |
3498 | * | |
3499 | * | |
3500 | * SYSFS fan layout: extensions | |
3501 | * | |
3502 | * fan_watchdog (driver): | |
3503 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
3504 | */ | |
3505 | ||
3506 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
3507 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
3508 | struct device_attribute *attr, | |
3509 | char *buf) | |
3510 | { | |
3511 | int res, mode; | |
3512 | u8 status; | |
3513 | ||
3514 | res = fan_get_status_safe(&status); | |
3515 | if (res) | |
3516 | return res; | |
3517 | ||
3518 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
3519 | if (status != fan_control_initial_status) { | |
3520 | tp_features.fan_ctrl_status_undef = 0; | |
3521 | } else { | |
3522 | /* Return most likely status. In fact, it | |
3523 | * might be the only possible status */ | |
3524 | status = TP_EC_FAN_AUTO; | |
3525 | } | |
3526 | } | |
3527 | ||
3528 | if (status & TP_EC_FAN_FULLSPEED) { | |
3529 | mode = 0; | |
3530 | } else if (status & TP_EC_FAN_AUTO) { | |
3531 | mode = 2; | |
3532 | } else | |
3533 | mode = 1; | |
3534 | ||
3535 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
3536 | } | |
3537 | ||
3538 | static ssize_t fan_pwm1_enable_store(struct device *dev, | |
3539 | struct device_attribute *attr, | |
3540 | const char *buf, size_t count) | |
3541 | { | |
3542 | unsigned long t; | |
3543 | int res, level; | |
3544 | ||
3545 | if (parse_strtoul(buf, 2, &t)) | |
3546 | return -EINVAL; | |
3547 | ||
3548 | switch (t) { | |
3549 | case 0: | |
3550 | level = TP_EC_FAN_FULLSPEED; | |
3551 | break; | |
3552 | case 1: | |
3553 | level = TPACPI_FAN_LAST_LEVEL; | |
3554 | break; | |
3555 | case 2: | |
3556 | level = TP_EC_FAN_AUTO; | |
3557 | break; | |
3558 | case 3: | |
3559 | /* reserved for software-controlled auto mode */ | |
3560 | return -ENOSYS; | |
3561 | default: | |
3562 | return -EINVAL; | |
3563 | } | |
3564 | ||
3565 | res = fan_set_level_safe(level); | |
c573ddb9 HMH |
3566 | if (res == -ENXIO) |
3567 | return -EINVAL; | |
3568 | else if (res < 0) | |
fe98a52c HMH |
3569 | return res; |
3570 | ||
3571 | fan_watchdog_reset(); | |
3572 | ||
3573 | return count; | |
3574 | } | |
3575 | ||
3576 | static struct device_attribute dev_attr_fan_pwm1_enable = | |
3577 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
3578 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
3579 | ||
3580 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
3581 | static ssize_t fan_pwm1_show(struct device *dev, | |
3582 | struct device_attribute *attr, | |
3583 | char *buf) | |
3584 | { | |
3585 | int res; | |
3586 | u8 status; | |
3587 | ||
3588 | res = fan_get_status_safe(&status); | |
3589 | if (res) | |
3590 | return res; | |
3591 | ||
3592 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
3593 | if (status != fan_control_initial_status) { | |
3594 | tp_features.fan_ctrl_status_undef = 0; | |
3595 | } else { | |
3596 | status = TP_EC_FAN_AUTO; | |
3597 | } | |
3598 | } | |
3599 | ||
3600 | if ((status & | |
3601 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
3602 | status = fan_control_desired_level; | |
3603 | ||
3604 | if (status > 7) | |
3605 | status = 7; | |
3606 | ||
3607 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); | |
3608 | } | |
3609 | ||
3610 | static ssize_t fan_pwm1_store(struct device *dev, | |
3611 | struct device_attribute *attr, | |
3612 | const char *buf, size_t count) | |
3613 | { | |
3614 | unsigned long s; | |
3615 | int rc; | |
3616 | u8 status, newlevel; | |
3617 | ||
3618 | if (parse_strtoul(buf, 255, &s)) | |
3619 | return -EINVAL; | |
3620 | ||
3621 | /* scale down from 0-255 to 0-7 */ | |
3622 | newlevel = (s >> 5) & 0x07; | |
3623 | ||
3624 | rc = mutex_lock_interruptible(&fan_mutex); | |
3625 | if (rc < 0) | |
3626 | return rc; | |
3627 | ||
3628 | rc = fan_get_status(&status); | |
3629 | if (!rc && (status & | |
3630 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
3631 | rc = fan_set_level(newlevel); | |
c573ddb9 HMH |
3632 | if (rc == -ENXIO) |
3633 | rc = -EINVAL; | |
3634 | else if (!rc) { | |
fe98a52c | 3635 | fan_update_desired_level(newlevel); |
ca4ac2f4 HMH |
3636 | fan_watchdog_reset(); |
3637 | } | |
fe98a52c HMH |
3638 | } |
3639 | ||
3640 | mutex_unlock(&fan_mutex); | |
3641 | return (rc)? rc : count; | |
3642 | } | |
3643 | ||
3644 | static struct device_attribute dev_attr_fan_pwm1 = | |
3645 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
3646 | fan_pwm1_show, fan_pwm1_store); | |
3647 | ||
3648 | /* sysfs fan fan1_input ------------------------------------------------ */ | |
3649 | static ssize_t fan_fan1_input_show(struct device *dev, | |
3650 | struct device_attribute *attr, | |
3651 | char *buf) | |
3652 | { | |
3653 | int res; | |
3654 | unsigned int speed; | |
3655 | ||
3656 | res = fan_get_speed(&speed); | |
3657 | if (res < 0) | |
3658 | return res; | |
3659 | ||
3660 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
3661 | } | |
3662 | ||
3663 | static struct device_attribute dev_attr_fan_fan1_input = | |
3664 | __ATTR(fan1_input, S_IRUGO, | |
3665 | fan_fan1_input_show, NULL); | |
3666 | ||
3667 | /* sysfs fan fan_watchdog (driver) ------------------------------------- */ | |
3668 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
3669 | char *buf) | |
3670 | { | |
3671 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
3672 | } | |
3673 | ||
3674 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, | |
3675 | const char *buf, size_t count) | |
3676 | { | |
3677 | unsigned long t; | |
3678 | ||
3679 | if (parse_strtoul(buf, 120, &t)) | |
3680 | return -EINVAL; | |
3681 | ||
ecf2a80a HMH |
3682 | if (!fan_control_allowed) |
3683 | return -EPERM; | |
3684 | ||
fe98a52c HMH |
3685 | fan_watchdog_maxinterval = t; |
3686 | fan_watchdog_reset(); | |
3687 | ||
3688 | return count; | |
3689 | } | |
3690 | ||
3691 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
3692 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
3693 | ||
3694 | /* --------------------------------------------------------------------- */ | |
3695 | static struct attribute *fan_attributes[] = { | |
3696 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
3697 | &dev_attr_fan_fan1_input.attr, | |
3698 | NULL | |
3699 | }; | |
3700 | ||
3701 | static const struct attribute_group fan_attr_group = { | |
3702 | .attrs = fan_attributes, | |
3703 | }; | |
3704 | ||
a5763f22 | 3705 | static int __init fan_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3706 | { |
fe98a52c HMH |
3707 | int rc; |
3708 | ||
fe08bc4b HMH |
3709 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); |
3710 | ||
40ca9fdf | 3711 | mutex_init(&fan_mutex); |
efa27145 HMH |
3712 | fan_status_access_mode = TPACPI_FAN_NONE; |
3713 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
69ba91cb | 3714 | fan_control_commands = 0; |
16663a87 | 3715 | fan_watchdog_maxinterval = 0; |
d8fd94d9 | 3716 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 3717 | fan_control_desired_level = 7; |
78f81cc4 | 3718 | |
8d376cd6 HMH |
3719 | IBM_ACPIHANDLE_INIT(fans); |
3720 | IBM_ACPIHANDLE_INIT(gfan); | |
3721 | IBM_ACPIHANDLE_INIT(sfan); | |
5fba344c | 3722 | |
78f81cc4 BD |
3723 | if (gfan_handle) { |
3724 | /* 570, 600e/x, 770e, 770x */ | |
efa27145 | 3725 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; |
69ba91cb HMH |
3726 | } else { |
3727 | /* all other ThinkPads: note that even old-style | |
3728 | * ThinkPad ECs supports the fan control register */ | |
778b4d74 HMH |
3729 | if (likely(acpi_ec_read(fan_status_offset, |
3730 | &fan_control_initial_status))) { | |
efa27145 | 3731 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; |
778b4d74 HMH |
3732 | |
3733 | /* In some ThinkPads, neither the EC nor the ACPI | |
3734 | * DSDT initialize the fan status, and it ends up | |
3735 | * being set to 0x07 when it *could* be either | |
3736 | * 0x07 or 0x80. | |
3737 | * | |
3738 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
3739 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
3740 | * to be buggy. */ | |
d5a2f2f1 HMH |
3741 | if (fan_control_initial_status == 0x07) { |
3742 | switch (thinkpad_id.ec_model) { | |
3743 | case 0x5931: /* TP-1Y */ | |
3744 | case 0x3837: /* TP-78 */ | |
3745 | case 0x3637: /* TP-76 */ | |
3746 | case 0x3037: /* TP-70 */ | |
3747 | printk(IBM_NOTICE | |
3748 | "fan_init: initial fan status is " | |
3749 | "unknown, assuming it is in auto " | |
3750 | "mode\n"); | |
3751 | tp_features.fan_ctrl_status_undef = 1; | |
3752 | ;; | |
3753 | } | |
778b4d74 | 3754 | } |
69ba91cb HMH |
3755 | } else { |
3756 | printk(IBM_ERR | |
3757 | "ThinkPad ACPI EC access misbehaving, " | |
3758 | "fan status and control unavailable\n"); | |
5fba344c | 3759 | return 1; |
69ba91cb HMH |
3760 | } |
3761 | } | |
78f81cc4 | 3762 | |
69ba91cb HMH |
3763 | if (sfan_handle) { |
3764 | /* 570, 770x-JL */ | |
efa27145 | 3765 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; |
1c6a334e | 3766 | fan_control_commands |= |
efa27145 | 3767 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; |
78f81cc4 | 3768 | } else { |
69ba91cb HMH |
3769 | if (!gfan_handle) { |
3770 | /* gfan without sfan means no fan control */ | |
3771 | /* all other models implement TP EC 0x2f control */ | |
3772 | ||
3773 | if (fans_handle) { | |
a8b7a662 | 3774 | /* X31, X40, X41 */ |
69ba91cb | 3775 | fan_control_access_mode = |
efa27145 | 3776 | TPACPI_FAN_WR_ACPI_FANS; |
69ba91cb | 3777 | fan_control_commands |= |
efa27145 HMH |
3778 | TPACPI_FAN_CMD_SPEED | |
3779 | TPACPI_FAN_CMD_LEVEL | | |
3780 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb | 3781 | } else { |
efa27145 | 3782 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; |
a12095c2 | 3783 | fan_control_commands |= |
efa27145 HMH |
3784 | TPACPI_FAN_CMD_LEVEL | |
3785 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
3786 | } |
3787 | } | |
3788 | } | |
3789 | ||
fe08bc4b HMH |
3790 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
3791 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
3792 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
3793 | fan_status_access_mode, fan_control_access_mode); | |
3794 | ||
ecf2a80a HMH |
3795 | /* fan control master switch */ |
3796 | if (!fan_control_allowed) { | |
3797 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
3798 | fan_control_commands = 0; | |
3799 | dbg_printk(TPACPI_DBG_INIT, | |
3800 | "fan control features disabled by parameter\n"); | |
3801 | } | |
3802 | ||
fe98a52c HMH |
3803 | /* update fan_control_desired_level */ |
3804 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
3805 | fan_get_status_safe(NULL); | |
3806 | ||
3807 | if (fan_status_access_mode != TPACPI_FAN_NONE || | |
3808 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
3809 | rc = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
3810 | &fan_attr_group); | |
3811 | if (!(rc < 0)) | |
3812 | rc = driver_create_file(&tpacpi_pdriver.driver, | |
3813 | &driver_attr_fan_watchdog); | |
3814 | if (rc < 0) | |
3815 | return rc; | |
3816 | return 0; | |
3817 | } else | |
3818 | return 1; | |
3819 | } | |
3820 | ||
3821 | /* | |
3822 | * Call with fan_mutex held | |
3823 | */ | |
3824 | static void fan_update_desired_level(u8 status) | |
3825 | { | |
3826 | if ((status & | |
3827 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
3828 | if (status > 7) | |
3829 | fan_control_desired_level = 7; | |
3830 | else | |
3831 | fan_control_desired_level = status; | |
3832 | } | |
69ba91cb | 3833 | } |
78f81cc4 | 3834 | |
c52f0aa5 | 3835 | static int fan_get_status(u8 *status) |
78f81cc4 | 3836 | { |
c52f0aa5 | 3837 | u8 s; |
78f81cc4 | 3838 | |
a8b7a662 | 3839 | /* TODO: |
efa27145 | 3840 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ |
a8b7a662 | 3841 | |
3ef8a609 | 3842 | switch (fan_status_access_mode) { |
efa27145 | 3843 | case TPACPI_FAN_RD_ACPI_GFAN: |
78f81cc4 | 3844 | /* 570, 600e/x, 770e, 770x */ |
c52f0aa5 HMH |
3845 | |
3846 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) | |
1da177e4 | 3847 | return -EIO; |
78f81cc4 | 3848 | |
c52f0aa5 HMH |
3849 | if (likely(status)) |
3850 | *status = s & 0x07; | |
3ef8a609 HMH |
3851 | |
3852 | break; | |
3853 | ||
efa27145 | 3854 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 3855 | /* all except 570, 600e/x, 770e, 770x */ |
c52f0aa5 | 3856 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
3ef8a609 | 3857 | return -EIO; |
78f81cc4 | 3858 | |
c52f0aa5 HMH |
3859 | if (likely(status)) |
3860 | *status = s; | |
3861 | ||
3862 | break; | |
3863 | ||
3864 | default: | |
3865 | return -ENXIO; | |
78f81cc4 BD |
3866 | } |
3867 | ||
c52f0aa5 HMH |
3868 | return 0; |
3869 | } | |
3870 | ||
fe98a52c HMH |
3871 | static int fan_get_status_safe(u8 *status) |
3872 | { | |
3873 | int rc; | |
3874 | u8 s; | |
3875 | ||
3876 | rc = mutex_lock_interruptible(&fan_mutex); | |
3877 | if (rc < 0) | |
3878 | return rc; | |
3879 | rc = fan_get_status(&s); | |
3880 | if (!rc) | |
3881 | fan_update_desired_level(s); | |
3882 | mutex_unlock(&fan_mutex); | |
3883 | ||
3884 | if (status) | |
3885 | *status = s; | |
3886 | ||
3887 | return rc; | |
3888 | } | |
3889 | ||
56b6aeb0 HMH |
3890 | static void fan_exit(void) |
3891 | { | |
99fba3f8 | 3892 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n"); |
fe98a52c HMH |
3893 | |
3894 | /* FIXME: can we really do this unconditionally? */ | |
3895 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, &fan_attr_group); | |
3896 | driver_remove_file(&tpacpi_pdriver.driver, &driver_attr_fan_watchdog); | |
3897 | ||
56b6aeb0 HMH |
3898 | cancel_delayed_work(&fan_watchdog_task); |
3899 | flush_scheduled_work(); | |
3900 | } | |
3901 | ||
c52f0aa5 HMH |
3902 | static int fan_get_speed(unsigned int *speed) |
3903 | { | |
3904 | u8 hi, lo; | |
3905 | ||
3906 | switch (fan_status_access_mode) { | |
efa27145 | 3907 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 3908 | /* all except 570, 600e/x, 770e, 770x */ |
3ef8a609 HMH |
3909 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
3910 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
3911 | return -EIO; | |
3ef8a609 | 3912 | |
c52f0aa5 HMH |
3913 | if (likely(speed)) |
3914 | *speed = (hi << 8) | lo; | |
3915 | ||
3916 | break; | |
3917 | ||
3918 | default: | |
3919 | return -ENXIO; | |
3920 | } | |
3921 | ||
3922 | return 0; | |
3923 | } | |
3924 | ||
56b6aeb0 | 3925 | static void fan_watchdog_fire(struct work_struct *ignored) |
16663a87 | 3926 | { |
99fba3f8 HMH |
3927 | int rc; |
3928 | ||
8fef502e HMH |
3929 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
3930 | return; | |
3931 | ||
56b6aeb0 | 3932 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); |
99fba3f8 HMH |
3933 | rc = fan_set_enable(); |
3934 | if (rc < 0) { | |
3935 | printk(IBM_ERR "fan watchdog: error %d while enabling fan, " | |
3936 | "will try again later...\n", -rc); | |
56b6aeb0 HMH |
3937 | /* reschedule for later */ |
3938 | fan_watchdog_reset(); | |
3939 | } | |
16663a87 HMH |
3940 | } |
3941 | ||
3942 | static void fan_watchdog_reset(void) | |
3943 | { | |
94954cc6 | 3944 | static int fan_watchdog_active; |
16663a87 | 3945 | |
4985cd0a HMH |
3946 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
3947 | return; | |
3948 | ||
16663a87 HMH |
3949 | if (fan_watchdog_active) |
3950 | cancel_delayed_work(&fan_watchdog_task); | |
3951 | ||
8fef502e HMH |
3952 | if (fan_watchdog_maxinterval > 0 && |
3953 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { | |
16663a87 HMH |
3954 | fan_watchdog_active = 1; |
3955 | if (!schedule_delayed_work(&fan_watchdog_task, | |
3956 | msecs_to_jiffies(fan_watchdog_maxinterval | |
3957 | * 1000))) { | |
3958 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
3959 | "watchdog will not trigger\n"); | |
3960 | } | |
3961 | } else | |
3962 | fan_watchdog_active = 0; | |
3963 | } | |
3964 | ||
18ad7996 | 3965 | static int fan_set_level(int level) |
78f81cc4 | 3966 | { |
ecf2a80a HMH |
3967 | if (!fan_control_allowed) |
3968 | return -EPERM; | |
3969 | ||
18ad7996 | 3970 | switch (fan_control_access_mode) { |
efa27145 | 3971 | case TPACPI_FAN_WR_ACPI_SFAN: |
18ad7996 | 3972 | if (level >= 0 && level <= 7) { |
fe98a52c | 3973 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
78f81cc4 | 3974 | return -EIO; |
18ad7996 HMH |
3975 | } else |
3976 | return -EINVAL; | |
3977 | break; | |
3978 | ||
efa27145 HMH |
3979 | case TPACPI_FAN_WR_ACPI_FANS: |
3980 | case TPACPI_FAN_WR_TPEC: | |
3981 | if ((level != TP_EC_FAN_AUTO) && | |
3982 | (level != TP_EC_FAN_FULLSPEED) && | |
a12095c2 HMH |
3983 | ((level < 0) || (level > 7))) |
3984 | return -EINVAL; | |
3985 | ||
eaa7571b HMH |
3986 | /* safety net should the EC not support AUTO |
3987 | * or FULLSPEED mode bits and just ignore them */ | |
3988 | if (level & TP_EC_FAN_FULLSPEED) | |
3989 | level |= 7; /* safety min speed 7 */ | |
3990 | else if (level & TP_EC_FAN_FULLSPEED) | |
3991 | level |= 4; /* safety min speed 4 */ | |
3992 | ||
fe98a52c | 3993 | if (!acpi_ec_write(fan_status_offset, level)) |
a12095c2 | 3994 | return -EIO; |
778b4d74 | 3995 | else |
d8fd94d9 | 3996 | tp_features.fan_ctrl_status_undef = 0; |
a12095c2 HMH |
3997 | break; |
3998 | ||
18ad7996 HMH |
3999 | default: |
4000 | return -ENXIO; | |
4001 | } | |
4002 | return 0; | |
4003 | } | |
4004 | ||
fe98a52c HMH |
4005 | static int fan_set_level_safe(int level) |
4006 | { | |
4007 | int rc; | |
4008 | ||
ecf2a80a HMH |
4009 | if (!fan_control_allowed) |
4010 | return -EPERM; | |
4011 | ||
fe98a52c HMH |
4012 | rc = mutex_lock_interruptible(&fan_mutex); |
4013 | if (rc < 0) | |
4014 | return rc; | |
4015 | ||
4016 | if (level == TPACPI_FAN_LAST_LEVEL) | |
4017 | level = fan_control_desired_level; | |
4018 | ||
4019 | rc = fan_set_level(level); | |
4020 | if (!rc) | |
4021 | fan_update_desired_level(level); | |
4022 | ||
4023 | mutex_unlock(&fan_mutex); | |
4024 | return rc; | |
4025 | } | |
4026 | ||
18ad7996 HMH |
4027 | static int fan_set_enable(void) |
4028 | { | |
1c6a334e HMH |
4029 | u8 s; |
4030 | int rc; | |
4031 | ||
ecf2a80a HMH |
4032 | if (!fan_control_allowed) |
4033 | return -EPERM; | |
4034 | ||
40ca9fdf HMH |
4035 | rc = mutex_lock_interruptible(&fan_mutex); |
4036 | if (rc < 0) | |
4037 | return rc; | |
4038 | ||
18ad7996 | 4039 | switch (fan_control_access_mode) { |
efa27145 HMH |
4040 | case TPACPI_FAN_WR_ACPI_FANS: |
4041 | case TPACPI_FAN_WR_TPEC: | |
40ca9fdf HMH |
4042 | rc = fan_get_status(&s); |
4043 | if (rc < 0) | |
4044 | break; | |
1c6a334e HMH |
4045 | |
4046 | /* Don't go out of emergency fan mode */ | |
eaa7571b HMH |
4047 | if (s != 7) { |
4048 | s &= 0x07; | |
4049 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
4050 | } | |
1c6a334e HMH |
4051 | |
4052 | if (!acpi_ec_write(fan_status_offset, s)) | |
40ca9fdf HMH |
4053 | rc = -EIO; |
4054 | else { | |
d8fd94d9 | 4055 | tp_features.fan_ctrl_status_undef = 0; |
40ca9fdf HMH |
4056 | rc = 0; |
4057 | } | |
1c6a334e HMH |
4058 | break; |
4059 | ||
efa27145 | 4060 | case TPACPI_FAN_WR_ACPI_SFAN: |
40ca9fdf HMH |
4061 | rc = fan_get_status(&s); |
4062 | if (rc < 0) | |
4063 | break; | |
1c6a334e HMH |
4064 | |
4065 | s &= 0x07; | |
4066 | ||
4067 | /* Set fan to at least level 4 */ | |
eaa7571b | 4068 | s |= 4; |
1c6a334e HMH |
4069 | |
4070 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) | |
40ca9fdf HMH |
4071 | rc= -EIO; |
4072 | else | |
4073 | rc = 0; | |
18ad7996 HMH |
4074 | break; |
4075 | ||
4076 | default: | |
40ca9fdf | 4077 | rc = -ENXIO; |
18ad7996 | 4078 | } |
40ca9fdf HMH |
4079 | |
4080 | mutex_unlock(&fan_mutex); | |
4081 | return rc; | |
18ad7996 HMH |
4082 | } |
4083 | ||
4084 | static int fan_set_disable(void) | |
4085 | { | |
40ca9fdf HMH |
4086 | int rc; |
4087 | ||
ecf2a80a HMH |
4088 | if (!fan_control_allowed) |
4089 | return -EPERM; | |
4090 | ||
40ca9fdf HMH |
4091 | rc = mutex_lock_interruptible(&fan_mutex); |
4092 | if (rc < 0) | |
4093 | return rc; | |
4094 | ||
4095 | rc = 0; | |
18ad7996 | 4096 | switch (fan_control_access_mode) { |
efa27145 HMH |
4097 | case TPACPI_FAN_WR_ACPI_FANS: |
4098 | case TPACPI_FAN_WR_TPEC: | |
18ad7996 | 4099 | if (!acpi_ec_write(fan_status_offset, 0x00)) |
40ca9fdf | 4100 | rc = -EIO; |
fe98a52c HMH |
4101 | else { |
4102 | fan_control_desired_level = 0; | |
d8fd94d9 | 4103 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 4104 | } |
18ad7996 HMH |
4105 | break; |
4106 | ||
efa27145 | 4107 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e | 4108 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) |
40ca9fdf | 4109 | rc = -EIO; |
fe98a52c HMH |
4110 | else |
4111 | fan_control_desired_level = 0; | |
1c6a334e HMH |
4112 | break; |
4113 | ||
18ad7996 | 4114 | default: |
40ca9fdf | 4115 | rc = -ENXIO; |
18ad7996 | 4116 | } |
40ca9fdf | 4117 | |
fe98a52c | 4118 | |
40ca9fdf HMH |
4119 | mutex_unlock(&fan_mutex); |
4120 | return rc; | |
56b6aeb0 HMH |
4121 | } |
4122 | ||
4123 | static int fan_set_speed(int speed) | |
4124 | { | |
40ca9fdf HMH |
4125 | int rc; |
4126 | ||
ecf2a80a HMH |
4127 | if (!fan_control_allowed) |
4128 | return -EPERM; | |
4129 | ||
40ca9fdf HMH |
4130 | rc = mutex_lock_interruptible(&fan_mutex); |
4131 | if (rc < 0) | |
4132 | return rc; | |
4133 | ||
4134 | rc = 0; | |
56b6aeb0 | 4135 | switch (fan_control_access_mode) { |
efa27145 | 4136 | case TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
4137 | if (speed >= 0 && speed <= 65535) { |
4138 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
4139 | speed, speed, speed)) | |
40ca9fdf | 4140 | rc = -EIO; |
56b6aeb0 | 4141 | } else |
40ca9fdf | 4142 | rc = -EINVAL; |
56b6aeb0 HMH |
4143 | break; |
4144 | ||
4145 | default: | |
40ca9fdf | 4146 | rc = -ENXIO; |
56b6aeb0 | 4147 | } |
40ca9fdf HMH |
4148 | |
4149 | mutex_unlock(&fan_mutex); | |
4150 | return rc; | |
56b6aeb0 HMH |
4151 | } |
4152 | ||
4153 | static int fan_read(char *p) | |
4154 | { | |
4155 | int len = 0; | |
4156 | int rc; | |
4157 | u8 status; | |
4158 | unsigned int speed = 0; | |
4159 | ||
4160 | switch (fan_status_access_mode) { | |
efa27145 | 4161 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 4162 | /* 570, 600e/x, 770e, 770x */ |
fe98a52c | 4163 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
4164 | return rc; |
4165 | ||
4166 | len += sprintf(p + len, "status:\t\t%s\n" | |
4167 | "level:\t\t%d\n", | |
4168 | (status != 0) ? "enabled" : "disabled", status); | |
4169 | break; | |
4170 | ||
efa27145 | 4171 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 4172 | /* all except 570, 600e/x, 770e, 770x */ |
fe98a52c | 4173 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
4174 | return rc; |
4175 | ||
d8fd94d9 | 4176 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 4177 | if (status != fan_control_initial_status) |
d8fd94d9 | 4178 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
4179 | else |
4180 | /* Return most likely status. In fact, it | |
4181 | * might be the only possible status */ | |
efa27145 | 4182 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
4183 | } |
4184 | ||
4185 | len += sprintf(p + len, "status:\t\t%s\n", | |
4186 | (status != 0) ? "enabled" : "disabled"); | |
4187 | ||
56b6aeb0 HMH |
4188 | if ((rc = fan_get_speed(&speed)) < 0) |
4189 | return rc; | |
4190 | ||
4191 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
4192 | ||
efa27145 | 4193 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
4194 | /* Disengaged mode takes precedence */ |
4195 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 4196 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
4197 | len += sprintf(p + len, "level:\t\tauto\n"); |
4198 | else | |
4199 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
4200 | break; | |
4201 | ||
efa27145 | 4202 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
4203 | default: |
4204 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4205 | } | |
4206 | ||
efa27145 | 4207 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
4208 | len += sprintf(p + len, "commands:\tlevel <level>"); |
4209 | ||
4210 | switch (fan_control_access_mode) { | |
efa27145 | 4211 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4212 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
4213 | break; | |
4214 | ||
4215 | default: | |
4216 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 4217 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
4218 | break; |
4219 | } | |
4220 | } | |
18ad7996 | 4221 | |
efa27145 | 4222 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
4223 | len += sprintf(p + len, "commands:\tenable, disable\n" |
4224 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
4225 | "1-120 (seconds))\n"); | |
1da177e4 | 4226 | |
efa27145 | 4227 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
4228 | len += sprintf(p + len, "commands:\tspeed <speed>" |
4229 | " (<speed> is 0-65535)\n"); | |
4230 | ||
4231 | return len; | |
78f81cc4 BD |
4232 | } |
4233 | ||
18ad7996 HMH |
4234 | static int fan_write_cmd_level(const char *cmd, int *rc) |
4235 | { | |
4236 | int level; | |
4237 | ||
a12095c2 | 4238 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 4239 | level = TP_EC_FAN_AUTO; |
fe98a52c HMH |
4240 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
4241 | (strlencmp(cmd, "level full-speed") == 0)) | |
efa27145 | 4242 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 4243 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
4244 | return 0; |
4245 | ||
fe98a52c | 4246 | if ((*rc = fan_set_level_safe(level)) == -ENXIO) |
18ad7996 HMH |
4247 | printk(IBM_ERR "level command accepted for unsupported " |
4248 | "access mode %d", fan_control_access_mode); | |
4249 | ||
4250 | return 1; | |
4251 | } | |
4252 | ||
4253 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
4254 | { | |
4255 | if (strlencmp(cmd, "enable") != 0) | |
4256 | return 0; | |
4257 | ||
4258 | if ((*rc = fan_set_enable()) == -ENXIO) | |
4259 | printk(IBM_ERR "enable command accepted for unsupported " | |
4260 | "access mode %d", fan_control_access_mode); | |
4261 | ||
4262 | return 1; | |
4263 | } | |
4264 | ||
4265 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
4266 | { | |
4267 | if (strlencmp(cmd, "disable") != 0) | |
4268 | return 0; | |
4269 | ||
4270 | if ((*rc = fan_set_disable()) == -ENXIO) | |
4271 | printk(IBM_ERR "disable command accepted for unsupported " | |
4272 | "access mode %d", fan_control_access_mode); | |
4273 | ||
4274 | return 1; | |
4275 | } | |
4276 | ||
4277 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
4278 | { | |
4279 | int speed; | |
4280 | ||
a8b7a662 HMH |
4281 | /* TODO: |
4282 | * Support speed <low> <medium> <high> ? */ | |
4283 | ||
18ad7996 HMH |
4284 | if (sscanf(cmd, "speed %d", &speed) != 1) |
4285 | return 0; | |
4286 | ||
4287 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
4288 | printk(IBM_ERR "speed command accepted for unsupported " | |
4289 | "access mode %d", fan_control_access_mode); | |
4290 | ||
4291 | return 1; | |
4292 | } | |
4293 | ||
16663a87 HMH |
4294 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
4295 | { | |
4296 | int interval; | |
4297 | ||
4298 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
4299 | return 0; | |
4300 | ||
4301 | if (interval < 0 || interval > 120) | |
4302 | *rc = -EINVAL; | |
4303 | else | |
4304 | fan_watchdog_maxinterval = interval; | |
4305 | ||
4306 | return 1; | |
4307 | } | |
4308 | ||
18ad7996 HMH |
4309 | static int fan_write(char *buf) |
4310 | { | |
4311 | char *cmd; | |
4312 | int rc = 0; | |
4313 | ||
4314 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 4315 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 4316 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 4317 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 4318 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
4319 | fan_write_cmd_disable(cmd, &rc) || |
4320 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 4321 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
4322 | fan_write_cmd_speed(cmd, &rc)) |
4323 | ) | |
4324 | rc = -EINVAL; | |
16663a87 HMH |
4325 | else if (!rc) |
4326 | fan_watchdog_reset(); | |
18ad7996 HMH |
4327 | } |
4328 | ||
4329 | return rc; | |
4330 | } | |
4331 | ||
a5763f22 HMH |
4332 | static struct ibm_struct fan_driver_data = { |
4333 | .name = "fan", | |
4334 | .read = fan_read, | |
4335 | .write = fan_write, | |
4336 | .exit = fan_exit, | |
a5763f22 HMH |
4337 | }; |
4338 | ||
56b6aeb0 HMH |
4339 | /**************************************************************************** |
4340 | **************************************************************************** | |
4341 | * | |
4342 | * Infrastructure | |
4343 | * | |
4344 | **************************************************************************** | |
4345 | ****************************************************************************/ | |
4346 | ||
4347 | /* /proc support */ | |
94954cc6 | 4348 | static struct proc_dir_entry *proc_dir; |
16663a87 | 4349 | |
56b6aeb0 | 4350 | /* Subdriver registry */ |
a5763f22 HMH |
4351 | static LIST_HEAD(tpacpi_all_drivers); |
4352 | ||
1da177e4 | 4353 | |
56b6aeb0 HMH |
4354 | /* |
4355 | * Module and infrastructure proble, init and exit handling | |
4356 | */ | |
1da177e4 | 4357 | |
fe08bc4b | 4358 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 4359 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 4360 | { |
a5763f22 | 4361 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 4362 | |
a5763f22 | 4363 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
4364 | } |
4365 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
4366 | ||
a5763f22 | 4367 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
4368 | { |
4369 | int ret; | |
a5763f22 | 4370 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
4371 | struct proc_dir_entry *entry; |
4372 | ||
a5763f22 HMH |
4373 | BUG_ON(ibm == NULL); |
4374 | ||
4375 | INIT_LIST_HEAD(&ibm->all_drivers); | |
4376 | ||
92641177 | 4377 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
4378 | return 0; |
4379 | ||
fe08bc4b HMH |
4380 | dbg_printk(TPACPI_DBG_INIT, |
4381 | "probing for %s\n", ibm->name); | |
4382 | ||
a5763f22 HMH |
4383 | if (iibm->init) { |
4384 | ret = iibm->init(iibm); | |
5fba344c HMH |
4385 | if (ret > 0) |
4386 | return 0; /* probe failed */ | |
4387 | if (ret) | |
1da177e4 | 4388 | return ret; |
a5763f22 | 4389 | |
92641177 | 4390 | ibm->flags.init_called = 1; |
1da177e4 LT |
4391 | } |
4392 | ||
8d376cd6 HMH |
4393 | if (ibm->acpi) { |
4394 | if (ibm->acpi->hid) { | |
4395 | ret = register_tpacpi_subdriver(ibm); | |
4396 | if (ret) | |
4397 | goto err_out; | |
4398 | } | |
5fba344c | 4399 | |
8d376cd6 HMH |
4400 | if (ibm->acpi->notify) { |
4401 | ret = setup_acpi_notify(ibm); | |
4402 | if (ret == -ENODEV) { | |
4403 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
4404 | ibm->name); | |
4405 | ret = 0; | |
4406 | goto err_out; | |
4407 | } | |
4408 | if (ret < 0) | |
4409 | goto err_out; | |
5fba344c | 4410 | } |
5fba344c HMH |
4411 | } |
4412 | ||
fe08bc4b HMH |
4413 | dbg_printk(TPACPI_DBG_INIT, |
4414 | "%s installed\n", ibm->name); | |
4415 | ||
78f81cc4 BD |
4416 | if (ibm->read) { |
4417 | entry = create_proc_entry(ibm->name, | |
4418 | S_IFREG | S_IRUGO | S_IWUSR, | |
4419 | proc_dir); | |
4420 | if (!entry) { | |
4421 | printk(IBM_ERR "unable to create proc entry %s\n", | |
4422 | ibm->name); | |
5fba344c HMH |
4423 | ret = -ENODEV; |
4424 | goto err_out; | |
78f81cc4 BD |
4425 | } |
4426 | entry->owner = THIS_MODULE; | |
4427 | entry->data = ibm; | |
8d376cd6 | 4428 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 4429 | if (ibm->write) |
8d376cd6 | 4430 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 4431 | ibm->flags.proc_created = 1; |
78f81cc4 | 4432 | } |
1da177e4 | 4433 | |
a5763f22 HMH |
4434 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
4435 | ||
1da177e4 | 4436 | return 0; |
5fba344c HMH |
4437 | |
4438 | err_out: | |
fe08bc4b HMH |
4439 | dbg_printk(TPACPI_DBG_INIT, |
4440 | "%s: at error exit path with result %d\n", | |
4441 | ibm->name, ret); | |
4442 | ||
5fba344c HMH |
4443 | ibm_exit(ibm); |
4444 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
4445 | } |
4446 | ||
4447 | static void ibm_exit(struct ibm_struct *ibm) | |
4448 | { | |
fe08bc4b | 4449 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); |
a5763f22 HMH |
4450 | |
4451 | list_del_init(&ibm->all_drivers); | |
4452 | ||
8d376cd6 | 4453 | if (ibm->flags.acpi_notify_installed) { |
fe08bc4b HMH |
4454 | dbg_printk(TPACPI_DBG_EXIT, |
4455 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8d376cd6 HMH |
4456 | BUG_ON(!ibm->acpi); |
4457 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
4458 | ibm->acpi->type, | |
4459 | dispatch_acpi_notify); | |
4460 | ibm->flags.acpi_notify_installed = 0; | |
4461 | ibm->flags.acpi_notify_installed = 0; | |
5fba344c | 4462 | } |
1da177e4 | 4463 | |
92641177 | 4464 | if (ibm->flags.proc_created) { |
fe08bc4b HMH |
4465 | dbg_printk(TPACPI_DBG_EXIT, |
4466 | "%s: remove_proc_entry\n", ibm->name); | |
1da177e4 | 4467 | remove_proc_entry(ibm->name, proc_dir); |
92641177 | 4468 | ibm->flags.proc_created = 0; |
5fba344c | 4469 | } |
1da177e4 | 4470 | |
8d376cd6 | 4471 | if (ibm->flags.acpi_driver_registered) { |
fe08bc4b HMH |
4472 | dbg_printk(TPACPI_DBG_EXIT, |
4473 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8d376cd6 HMH |
4474 | BUG_ON(!ibm->acpi); |
4475 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
4476 | kfree(ibm->acpi->driver); | |
4477 | ibm->acpi->driver = NULL; | |
4478 | ibm->flags.acpi_driver_registered = 0; | |
5fba344c HMH |
4479 | } |
4480 | ||
92641177 | 4481 | if (ibm->flags.init_called && ibm->exit) { |
5fba344c | 4482 | ibm->exit(); |
92641177 | 4483 | ibm->flags.init_called = 0; |
1da177e4 | 4484 | } |
a5763f22 HMH |
4485 | |
4486 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
1da177e4 LT |
4487 | } |
4488 | ||
56b6aeb0 HMH |
4489 | /* Probing */ |
4490 | ||
d5a2f2f1 | 4491 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 4492 | { |
56b6aeb0 HMH |
4493 | struct dmi_device *dev = NULL; |
4494 | char ec_fw_string[18]; | |
1da177e4 | 4495 | |
d5a2f2f1 HMH |
4496 | if (!tp) |
4497 | return; | |
4498 | ||
4499 | memset(tp, 0, sizeof(*tp)); | |
4500 | ||
4501 | if (dmi_name_in_vendors("IBM")) | |
4502 | tp->vendor = PCI_VENDOR_ID_IBM; | |
4503 | else if (dmi_name_in_vendors("LENOVO")) | |
4504 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
4505 | else | |
4506 | return; | |
4507 | ||
4508 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
4509 | GFP_KERNEL); | |
4510 | if (!tp->bios_version_str) | |
4511 | return; | |
4512 | tp->bios_model = tp->bios_version_str[0] | |
4513 | | (tp->bios_version_str[1] << 8); | |
4514 | ||
56b6aeb0 HMH |
4515 | /* |
4516 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
4517 | * X32 or newer, all Z series; Some models must have an | |
4518 | * up-to-date BIOS or they will not be detected. | |
4519 | * | |
4520 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
4521 | */ | |
4522 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
4523 | if (sscanf(dev->name, | |
4524 | "IBM ThinkPad Embedded Controller -[%17c", | |
4525 | ec_fw_string) == 1) { | |
4526 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
4527 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
4528 | |
4529 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
4530 | tp->ec_model = ec_fw_string[0] | |
4531 | | (ec_fw_string[1] << 8); | |
4532 | break; | |
78f81cc4 | 4533 | } |
1da177e4 | 4534 | } |
d5a2f2f1 HMH |
4535 | |
4536 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
4537 | GFP_KERNEL); | |
4538 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
4539 | kfree(tp->model_str); | |
4540 | tp->model_str = NULL; | |
4541 | } | |
1da177e4 LT |
4542 | } |
4543 | ||
5fba344c HMH |
4544 | static int __init probe_for_thinkpad(void) |
4545 | { | |
4546 | int is_thinkpad; | |
4547 | ||
4548 | if (acpi_disabled) | |
4549 | return -ENODEV; | |
4550 | ||
4551 | /* | |
4552 | * Non-ancient models have better DMI tagging, but very old models | |
4553 | * don't. | |
4554 | */ | |
d5a2f2f1 | 4555 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
4556 | |
4557 | /* ec is required because many other handles are relative to it */ | |
8d376cd6 | 4558 | IBM_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
4559 | if (!ec_handle) { |
4560 | if (is_thinkpad) | |
4561 | printk(IBM_ERR | |
4562 | "Not yet supported ThinkPad detected!\n"); | |
4563 | return -ENODEV; | |
4564 | } | |
4565 | ||
0dcef77c HMH |
4566 | /* |
4567 | * Risks a regression on very old machines, but reduces potential | |
4568 | * false positives a damn great deal | |
4569 | */ | |
4570 | if (!is_thinkpad) | |
d5a2f2f1 | 4571 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
4572 | |
4573 | if (!is_thinkpad && !force_load) | |
4574 | return -ENODEV; | |
4575 | ||
5fba344c HMH |
4576 | return 0; |
4577 | } | |
4578 | ||
4579 | ||
56b6aeb0 | 4580 | /* Module init, exit, parameters */ |
1da177e4 | 4581 | |
a5763f22 HMH |
4582 | static struct ibm_init_struct ibms_init[] __initdata = { |
4583 | { | |
4584 | .init = thinkpad_acpi_driver_init, | |
4585 | .data = &thinkpad_acpi_driver_data, | |
4586 | }, | |
4587 | { | |
4588 | .init = hotkey_init, | |
4589 | .data = &hotkey_driver_data, | |
4590 | }, | |
4591 | { | |
4592 | .init = bluetooth_init, | |
4593 | .data = &bluetooth_driver_data, | |
4594 | }, | |
4595 | { | |
4596 | .init = wan_init, | |
4597 | .data = &wan_driver_data, | |
4598 | }, | |
4599 | { | |
4600 | .init = video_init, | |
4601 | .data = &video_driver_data, | |
4602 | }, | |
4603 | { | |
4604 | .init = light_init, | |
4605 | .data = &light_driver_data, | |
4606 | }, | |
4607 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
4608 | { | |
4609 | .init = dock_init, | |
4610 | .data = &dock_driver_data[0], | |
4611 | }, | |
4612 | { | |
d94a7f16 | 4613 | .init = dock_init2, |
a5763f22 HMH |
4614 | .data = &dock_driver_data[1], |
4615 | }, | |
4616 | #endif | |
4617 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
4618 | { | |
4619 | .init = bay_init, | |
4620 | .data = &bay_driver_data, | |
4621 | }, | |
4622 | #endif | |
4623 | { | |
4624 | .init = cmos_init, | |
4625 | .data = &cmos_driver_data, | |
4626 | }, | |
4627 | { | |
4628 | .init = led_init, | |
4629 | .data = &led_driver_data, | |
4630 | }, | |
4631 | { | |
4632 | .init = beep_init, | |
4633 | .data = &beep_driver_data, | |
4634 | }, | |
4635 | { | |
4636 | .init = thermal_init, | |
4637 | .data = &thermal_driver_data, | |
4638 | }, | |
4639 | { | |
4640 | .data = &ecdump_driver_data, | |
4641 | }, | |
4642 | { | |
4643 | .init = brightness_init, | |
4644 | .data = &brightness_driver_data, | |
4645 | }, | |
4646 | { | |
4647 | .data = &volume_driver_data, | |
4648 | }, | |
4649 | { | |
4650 | .init = fan_init, | |
4651 | .data = &fan_driver_data, | |
4652 | }, | |
4653 | }; | |
4654 | ||
3945ac36 | 4655 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
4656 | { |
4657 | unsigned int i; | |
a5763f22 | 4658 | struct ibm_struct *ibm; |
1da177e4 | 4659 | |
a5763f22 HMH |
4660 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
4661 | ibm = ibms_init[i].data; | |
4662 | BUG_ON(ibm == NULL); | |
4663 | ||
4664 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
4665 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 4666 | return -ENOSPC; |
a5763f22 HMH |
4667 | strcpy(ibms_init[i].param, val); |
4668 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
4669 | return 0; |
4670 | } | |
a5763f22 | 4671 | } |
1da177e4 | 4672 | |
1da177e4 LT |
4673 | return -EINVAL; |
4674 | } | |
4675 | ||
56b6aeb0 HMH |
4676 | static int experimental; |
4677 | module_param(experimental, int, 0); | |
4678 | ||
132ce091 HMH |
4679 | static u32 dbg_level; |
4680 | module_param_named(debug, dbg_level, uint, 0); | |
4681 | ||
0dcef77c | 4682 | static int force_load; |
86cc9445 | 4683 | module_param(force_load, bool, 0); |
0dcef77c | 4684 | |
ecf2a80a | 4685 | static int fan_control_allowed; |
86cc9445 | 4686 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
ecf2a80a | 4687 | |
24d3b774 HMH |
4688 | static int brightness_mode; |
4689 | module_param_named(brightness_mode, brightness_mode, int, 0); | |
4690 | ||
ff80f137 HMH |
4691 | static unsigned int hotkey_report_mode; |
4692 | module_param(hotkey_report_mode, uint, 0); | |
4693 | ||
1da177e4 LT |
4694 | #define IBM_PARAM(feature) \ |
4695 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
4696 | ||
78f81cc4 BD |
4697 | IBM_PARAM(hotkey); |
4698 | IBM_PARAM(bluetooth); | |
4699 | IBM_PARAM(video); | |
4700 | IBM_PARAM(light); | |
85998248 | 4701 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
78f81cc4 | 4702 | IBM_PARAM(dock); |
63e5f248 | 4703 | #endif |
85998248 | 4704 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 | 4705 | IBM_PARAM(bay); |
85998248 | 4706 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
78f81cc4 BD |
4707 | IBM_PARAM(cmos); |
4708 | IBM_PARAM(led); | |
4709 | IBM_PARAM(beep); | |
4710 | IBM_PARAM(ecdump); | |
4711 | IBM_PARAM(brightness); | |
4712 | IBM_PARAM(volume); | |
4713 | IBM_PARAM(fan); | |
4714 | ||
1def7115 | 4715 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
4716 | { |
4717 | int ret, i; | |
4718 | ||
8fef502e HMH |
4719 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
4720 | ||
ff80f137 HMH |
4721 | /* Parameter checking */ |
4722 | if (hotkey_report_mode > 2) | |
4723 | return -EINVAL; | |
4724 | ||
54ae1501 | 4725 | /* Driver-level probe */ |
d5a2f2f1 HMH |
4726 | |
4727 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 4728 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
4729 | if (ret) { |
4730 | thinkpad_acpi_module_exit(); | |
5fba344c | 4731 | return ret; |
d5a2f2f1 | 4732 | } |
1da177e4 | 4733 | |
54ae1501 | 4734 | /* Driver initialization */ |
d5a2f2f1 | 4735 | |
8d376cd6 HMH |
4736 | IBM_ACPIHANDLE_INIT(ecrd); |
4737 | IBM_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 4738 | |
8d376cd6 | 4739 | proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir); |
1da177e4 | 4740 | if (!proc_dir) { |
8d376cd6 | 4741 | printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR); |
1def7115 | 4742 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
4743 | return -ENODEV; |
4744 | } | |
4745 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 4746 | |
54ae1501 HMH |
4747 | ret = platform_driver_register(&tpacpi_pdriver); |
4748 | if (ret) { | |
4749 | printk(IBM_ERR "unable to register platform driver\n"); | |
4750 | thinkpad_acpi_module_exit(); | |
4751 | return ret; | |
4752 | } | |
ac36393d HMH |
4753 | tp_features.platform_drv_registered = 1; |
4754 | ||
176750d6 HMH |
4755 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
4756 | if (ret) { | |
4757 | printk(IBM_ERR "unable to create sysfs driver attributes\n"); | |
4758 | thinkpad_acpi_module_exit(); | |
4759 | return ret; | |
4760 | } | |
ac36393d | 4761 | tp_features.platform_drv_attrs_registered = 1; |
176750d6 | 4762 | |
54ae1501 HMH |
4763 | |
4764 | /* Device initialization */ | |
4765 | tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1, | |
4766 | NULL, 0); | |
4767 | if (IS_ERR(tpacpi_pdev)) { | |
4768 | ret = PTR_ERR(tpacpi_pdev); | |
4769 | tpacpi_pdev = NULL; | |
4770 | printk(IBM_ERR "unable to register platform device\n"); | |
4771 | thinkpad_acpi_module_exit(); | |
4772 | return ret; | |
4773 | } | |
4774 | tpacpi_hwmon = hwmon_device_register(&tpacpi_pdev->dev); | |
4775 | if (IS_ERR(tpacpi_hwmon)) { | |
4776 | ret = PTR_ERR(tpacpi_hwmon); | |
4777 | tpacpi_hwmon = NULL; | |
4778 | printk(IBM_ERR "unable to register hwmon device\n"); | |
4779 | thinkpad_acpi_module_exit(); | |
4780 | return ret; | |
4781 | } | |
8523ed6f | 4782 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
4783 | tpacpi_inputdev = input_allocate_device(); |
4784 | if (!tpacpi_inputdev) { | |
4785 | printk(IBM_ERR "unable to allocate input device\n"); | |
4786 | thinkpad_acpi_module_exit(); | |
4787 | return -ENOMEM; | |
4788 | } else { | |
4789 | /* Prepare input device, but don't register */ | |
4790 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
4791 | tpacpi_inputdev->phys = IBM_DRVR_NAME "/input0"; | |
4792 | tpacpi_inputdev->id.bustype = BUS_HOST; | |
edf0e0e5 HMH |
4793 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
4794 | thinkpad_id.vendor : | |
4795 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
4796 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
4797 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
4798 | } | |
a5763f22 HMH |
4799 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
4800 | ret = ibm_init(&ibms_init[i]); | |
4801 | if (ret >= 0 && *ibms_init[i].param) | |
4802 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 4803 | if (ret < 0) { |
1def7115 | 4804 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
4805 | return ret; |
4806 | } | |
4807 | } | |
7f5d1cd6 HMH |
4808 | ret = input_register_device(tpacpi_inputdev); |
4809 | if (ret < 0) { | |
4810 | printk(IBM_ERR "unable to register input device\n"); | |
4811 | thinkpad_acpi_module_exit(); | |
4812 | return ret; | |
4813 | } else { | |
4814 | tp_features.input_device_registered = 1; | |
4815 | } | |
1da177e4 | 4816 | |
8fef502e | 4817 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
1da177e4 LT |
4818 | return 0; |
4819 | } | |
4820 | ||
1def7115 | 4821 | static void thinkpad_acpi_module_exit(void) |
56b6aeb0 | 4822 | { |
a5763f22 HMH |
4823 | struct ibm_struct *ibm, *itmp; |
4824 | ||
8fef502e HMH |
4825 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; |
4826 | ||
a5763f22 HMH |
4827 | list_for_each_entry_safe_reverse(ibm, itmp, |
4828 | &tpacpi_all_drivers, | |
4829 | all_drivers) { | |
4830 | ibm_exit(ibm); | |
4831 | } | |
56b6aeb0 | 4832 | |
a5763f22 | 4833 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); |
56b6aeb0 | 4834 | |
7f5d1cd6 HMH |
4835 | if (tpacpi_inputdev) { |
4836 | if (tp_features.input_device_registered) | |
4837 | input_unregister_device(tpacpi_inputdev); | |
4838 | else | |
4839 | input_free_device(tpacpi_inputdev); | |
4840 | } | |
4841 | ||
54ae1501 HMH |
4842 | if (tpacpi_hwmon) |
4843 | hwmon_device_unregister(tpacpi_hwmon); | |
4844 | ||
4845 | if (tpacpi_pdev) | |
4846 | platform_device_unregister(tpacpi_pdev); | |
4847 | ||
ac36393d HMH |
4848 | if (tp_features.platform_drv_attrs_registered) |
4849 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
4850 | ||
4851 | if (tp_features.platform_drv_registered) | |
4852 | platform_driver_unregister(&tpacpi_pdriver); | |
54ae1501 | 4853 | |
56b6aeb0 | 4854 | if (proc_dir) |
8d376cd6 | 4855 | remove_proc_entry(IBM_PROC_DIR, acpi_root_dir); |
56b6aeb0 | 4856 | |
d5a2f2f1 HMH |
4857 | kfree(thinkpad_id.bios_version_str); |
4858 | kfree(thinkpad_id.ec_version_str); | |
4859 | kfree(thinkpad_id.model_str); | |
56b6aeb0 HMH |
4860 | } |
4861 | ||
1def7115 HMH |
4862 | module_init(thinkpad_acpi_module_init); |
4863 | module_exit(thinkpad_acpi_module_exit); |