Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
643f12db | 2 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 LT |
3 | * |
4 | * | |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
a62bc916 | 6 | * Copyright (C) 2006-2007 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
1da177e4 LT |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
a62bc916 HMH |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
21 | * 02110-1301, USA. | |
78f81cc4 BD |
22 | */ |
23 | ||
643f12db | 24 | #define IBM_VERSION "0.14" |
176750d6 | 25 | #define TPACPI_SYSFS_VERSION 0x000100 |
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 | ||
1da177e4 LT |
95 | #define __unused __attribute__ ((unused)) |
96 | ||
56b6aeb0 HMH |
97 | /**************************************************************************** |
98 | **************************************************************************** | |
99 | * | |
100 | * ACPI Helpers and device model | |
101 | * | |
102 | **************************************************************************** | |
103 | ****************************************************************************/ | |
104 | ||
105 | /************************************************************************* | |
106 | * ACPI basic handles | |
107 | */ | |
1da177e4 LT |
108 | |
109 | static acpi_handle root_handle = NULL; | |
110 | ||
111 | #define IBM_HANDLE(object, parent, paths...) \ | |
112 | static acpi_handle object##_handle; \ | |
113 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 114 | static char *object##_path; \ |
1da177e4 LT |
115 | static char *object##_paths[] = { paths } |
116 | ||
78f81cc4 BD |
117 | IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
118 | "\\_SB.PCI.ISA.EC", /* 570 */ | |
119 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
120 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
121 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
122 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
123 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 124 | ); |
78f81cc4 | 125 | |
56b6aeb0 HMH |
126 | IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
127 | IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 128 | |
56b6aeb0 HMH |
129 | |
130 | /************************************************************************* | |
131 | * Misc ACPI handles | |
132 | */ | |
78f81cc4 BD |
133 | |
134 | IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ | |
135 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ | |
136 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 137 | ); /* all others */ |
78f81cc4 BD |
138 | |
139 | IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ | |
140 | "^HKEY", /* R30, R31 */ | |
141 | "HKEY", /* all others */ | |
56b6aeb0 | 142 | ); /* 570 */ |
78f81cc4 | 143 | |
78f81cc4 | 144 | |
56b6aeb0 HMH |
145 | /************************************************************************* |
146 | * ACPI helpers | |
a8b7a662 HMH |
147 | */ |
148 | ||
1da177e4 LT |
149 | static int acpi_evalf(acpi_handle handle, |
150 | void *res, char *method, char *fmt, ...) | |
151 | { | |
152 | char *fmt0 = fmt; | |
78f81cc4 BD |
153 | struct acpi_object_list params; |
154 | union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; | |
155 | struct acpi_buffer result, *resultp; | |
156 | union acpi_object out_obj; | |
157 | acpi_status status; | |
158 | va_list ap; | |
159 | char res_type; | |
160 | int success; | |
161 | int quiet; | |
1da177e4 LT |
162 | |
163 | if (!*fmt) { | |
164 | printk(IBM_ERR "acpi_evalf() called with empty format\n"); | |
165 | return 0; | |
166 | } | |
167 | ||
168 | if (*fmt == 'q') { | |
169 | quiet = 1; | |
170 | fmt++; | |
171 | } else | |
172 | quiet = 0; | |
173 | ||
174 | res_type = *(fmt++); | |
175 | ||
176 | params.count = 0; | |
177 | params.pointer = &in_objs[0]; | |
178 | ||
179 | va_start(ap, fmt); | |
180 | while (*fmt) { | |
181 | char c = *(fmt++); | |
182 | switch (c) { | |
183 | case 'd': /* int */ | |
184 | in_objs[params.count].integer.value = va_arg(ap, int); | |
185 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
186 | break; | |
78f81cc4 | 187 | /* add more types as needed */ |
1da177e4 LT |
188 | default: |
189 | printk(IBM_ERR "acpi_evalf() called " | |
190 | "with invalid format character '%c'\n", c); | |
191 | return 0; | |
192 | } | |
193 | } | |
194 | va_end(ap); | |
195 | ||
78f81cc4 BD |
196 | if (res_type != 'v') { |
197 | result.length = sizeof(out_obj); | |
198 | result.pointer = &out_obj; | |
199 | resultp = &result; | |
200 | } else | |
201 | resultp = NULL; | |
1da177e4 | 202 | |
78f81cc4 | 203 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
204 | |
205 | switch (res_type) { | |
78f81cc4 | 206 | case 'd': /* int */ |
1da177e4 LT |
207 | if (res) |
208 | *(int *)res = out_obj.integer.value; | |
209 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
210 | break; | |
78f81cc4 | 211 | case 'v': /* void */ |
1da177e4 LT |
212 | success = status == AE_OK; |
213 | break; | |
78f81cc4 | 214 | /* add more types as needed */ |
1da177e4 LT |
215 | default: |
216 | printk(IBM_ERR "acpi_evalf() called " | |
217 | "with invalid format character '%c'\n", res_type); | |
218 | return 0; | |
219 | } | |
220 | ||
56b6aeb0 HMH |
221 | if (!success && !quiet) |
222 | printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", | |
223 | method, fmt0, status); | |
224 | ||
225 | return success; | |
226 | } | |
227 | ||
228 | static void __unused acpi_print_int(acpi_handle handle, char *method) | |
229 | { | |
230 | int i; | |
231 | ||
232 | if (acpi_evalf(handle, &i, method, "d")) | |
233 | printk(IBM_INFO "%s = 0x%x\n", method, i); | |
234 | else | |
235 | printk(IBM_ERR "error calling %s\n", method); | |
236 | } | |
237 | ||
238 | static int acpi_ec_read(int i, u8 * p) | |
239 | { | |
240 | int v; | |
241 | ||
242 | if (ecrd_handle) { | |
243 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
244 | return 0; | |
245 | *p = v; | |
246 | } else { | |
247 | if (ec_read(i, p) < 0) | |
248 | return 0; | |
249 | } | |
250 | ||
251 | return 1; | |
252 | } | |
253 | ||
254 | static int acpi_ec_write(int i, u8 v) | |
255 | { | |
256 | if (ecwr_handle) { | |
257 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
258 | return 0; | |
259 | } else { | |
260 | if (ec_write(i, v) < 0) | |
261 | return 0; | |
262 | } | |
263 | ||
264 | return 1; | |
265 | } | |
266 | ||
267 | static int _sta(acpi_handle handle) | |
268 | { | |
269 | int status; | |
270 | ||
271 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
272 | status = 0; | |
273 | ||
274 | return status; | |
275 | } | |
276 | ||
c9bea99c HMH |
277 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
278 | { | |
279 | if (!cmos_handle) | |
280 | return -ENXIO; | |
281 | ||
282 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
283 | return -EIO; | |
284 | ||
285 | return 0; | |
286 | } | |
287 | ||
56b6aeb0 HMH |
288 | /************************************************************************* |
289 | * ACPI device model | |
290 | */ | |
291 | ||
8d376cd6 | 292 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
293 | acpi_handle *handle, acpi_handle parent, |
294 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
295 | { |
296 | int i; | |
297 | acpi_status status; | |
298 | ||
5ae930e6 HMH |
299 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
300 | name); | |
301 | ||
56b6aeb0 HMH |
302 | for (i = 0; i < num_paths; i++) { |
303 | status = acpi_get_handle(parent, paths[i], handle); | |
304 | if (ACPI_SUCCESS(status)) { | |
305 | *path = paths[i]; | |
5ae930e6 HMH |
306 | dbg_printk(TPACPI_DBG_INIT, |
307 | "Found ACPI handle %s for %s\n", | |
308 | *path, name); | |
56b6aeb0 HMH |
309 | return; |
310 | } | |
311 | } | |
312 | ||
5ae930e6 HMH |
313 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
314 | name); | |
56b6aeb0 HMH |
315 | *handle = NULL; |
316 | } | |
317 | ||
8d376cd6 | 318 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
319 | { |
320 | struct ibm_struct *ibm = data; | |
321 | ||
8d376cd6 | 322 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
323 | return; |
324 | ||
8d376cd6 | 325 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
326 | } |
327 | ||
8d376cd6 | 328 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
329 | { |
330 | acpi_status status; | |
5ae930e6 | 331 | int rc; |
56b6aeb0 | 332 | |
8d376cd6 HMH |
333 | BUG_ON(!ibm->acpi); |
334 | ||
335 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
336 | return 0; |
337 | ||
5ae930e6 | 338 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
339 | "setting up ACPI notify for %s\n", ibm->name); |
340 | ||
5ae930e6 HMH |
341 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
342 | if (rc < 0) { | |
343 | printk(IBM_ERR "acpi_bus_get_device(%s) failed: %d\n", | |
344 | ibm->name, rc); | |
56b6aeb0 HMH |
345 | return -ENODEV; |
346 | } | |
347 | ||
8d376cd6 HMH |
348 | acpi_driver_data(ibm->acpi->device) = ibm; |
349 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
643f12db HMH |
350 | IBM_ACPI_EVENT_PREFIX, |
351 | ibm->name); | |
56b6aeb0 | 352 | |
8d376cd6 HMH |
353 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
354 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
355 | if (ACPI_FAILURE(status)) { |
356 | if (status == AE_ALREADY_EXISTS) { | |
357 | printk(IBM_NOTICE "another device driver is already handling %s events\n", | |
358 | ibm->name); | |
359 | } else { | |
360 | printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", | |
361 | ibm->name, status); | |
362 | } | |
363 | return -ENODEV; | |
364 | } | |
8d376cd6 | 365 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
366 | return 0; |
367 | } | |
368 | ||
8d376cd6 | 369 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
370 | { |
371 | return 0; | |
372 | } | |
373 | ||
6700121b | 374 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 375 | { |
5ae930e6 | 376 | int rc; |
56b6aeb0 | 377 | |
fe08bc4b HMH |
378 | dbg_printk(TPACPI_DBG_INIT, |
379 | "registering %s as an ACPI driver\n", ibm->name); | |
380 | ||
8d376cd6 HMH |
381 | BUG_ON(!ibm->acpi); |
382 | ||
383 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
384 | if (!ibm->acpi->driver) { | |
5fba344c HMH |
385 | printk(IBM_ERR "kzalloc(ibm->driver) failed\n"); |
386 | return -ENOMEM; | |
56b6aeb0 HMH |
387 | } |
388 | ||
8d376cd6 HMH |
389 | sprintf(ibm->acpi->driver->name, "%s_%s", IBM_NAME, ibm->name); |
390 | ibm->acpi->driver->ids = ibm->acpi->hid; | |
391 | ibm->acpi->driver->ops.add = &tpacpi_device_add; | |
56b6aeb0 | 392 | |
5ae930e6 HMH |
393 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
394 | if (rc < 0) { | |
56b6aeb0 | 395 | printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
5ae930e6 | 396 | ibm->acpi->hid, rc); |
8d376cd6 HMH |
397 | kfree(ibm->acpi->driver); |
398 | ibm->acpi->driver = NULL; | |
5ae930e6 | 399 | } else if (!rc) |
8d376cd6 | 400 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 401 | |
5ae930e6 | 402 | return rc; |
56b6aeb0 HMH |
403 | } |
404 | ||
405 | ||
406 | /**************************************************************************** | |
407 | **************************************************************************** | |
408 | * | |
409 | * Procfs Helpers | |
410 | * | |
411 | **************************************************************************** | |
412 | ****************************************************************************/ | |
413 | ||
8d376cd6 HMH |
414 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
415 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
416 | { |
417 | struct ibm_struct *ibm = data; | |
418 | int len; | |
419 | ||
420 | if (!ibm || !ibm->read) | |
421 | return -EINVAL; | |
422 | ||
423 | len = ibm->read(page); | |
424 | if (len < 0) | |
425 | return len; | |
426 | ||
427 | if (len <= off + count) | |
428 | *eof = 1; | |
429 | *start = page + off; | |
430 | len -= off; | |
431 | if (len > count) | |
432 | len = count; | |
433 | if (len < 0) | |
434 | len = 0; | |
435 | ||
436 | return len; | |
437 | } | |
438 | ||
8d376cd6 HMH |
439 | static int dispatch_procfs_write(struct file *file, |
440 | const char __user * userbuf, | |
441 | unsigned long count, void *data) | |
56b6aeb0 HMH |
442 | { |
443 | struct ibm_struct *ibm = data; | |
444 | char *kernbuf; | |
445 | int ret; | |
446 | ||
447 | if (!ibm || !ibm->write) | |
448 | return -EINVAL; | |
449 | ||
450 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
451 | if (!kernbuf) | |
452 | return -ENOMEM; | |
1da177e4 | 453 | |
56b6aeb0 HMH |
454 | if (copy_from_user(kernbuf, userbuf, count)) { |
455 | kfree(kernbuf); | |
456 | return -EFAULT; | |
457 | } | |
1da177e4 | 458 | |
56b6aeb0 HMH |
459 | kernbuf[count] = 0; |
460 | strcat(kernbuf, ","); | |
461 | ret = ibm->write(kernbuf); | |
462 | if (ret == 0) | |
463 | ret = count; | |
1da177e4 | 464 | |
56b6aeb0 HMH |
465 | kfree(kernbuf); |
466 | ||
467 | return ret; | |
1da177e4 LT |
468 | } |
469 | ||
470 | static char *next_cmd(char **cmds) | |
471 | { | |
472 | char *start = *cmds; | |
473 | char *end; | |
474 | ||
475 | while ((end = strchr(start, ',')) && end == start) | |
476 | start = end + 1; | |
477 | ||
478 | if (!end) | |
479 | return NULL; | |
480 | ||
481 | *end = 0; | |
482 | *cmds = end + 1; | |
483 | return start; | |
484 | } | |
485 | ||
56b6aeb0 | 486 | |
54ae1501 HMH |
487 | /**************************************************************************** |
488 | **************************************************************************** | |
489 | * | |
490 | * Device model: hwmon and platform | |
491 | * | |
492 | **************************************************************************** | |
493 | ****************************************************************************/ | |
494 | ||
495 | static struct platform_device *tpacpi_pdev = NULL; | |
496 | static struct class_device *tpacpi_hwmon = NULL; | |
497 | ||
498 | static struct platform_driver tpacpi_pdriver = { | |
499 | .driver = { | |
500 | .name = IBM_DRVR_NAME, | |
501 | .owner = THIS_MODULE, | |
502 | }, | |
503 | }; | |
504 | ||
505 | ||
176750d6 HMH |
506 | /************************************************************************* |
507 | * thinkpad-acpi driver attributes | |
508 | */ | |
509 | ||
510 | /* interface_version --------------------------------------------------- */ | |
511 | static ssize_t tpacpi_driver_interface_version_show( | |
512 | struct device_driver *drv, | |
513 | char *buf) | |
514 | { | |
515 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); | |
516 | } | |
517 | ||
518 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
519 | tpacpi_driver_interface_version_show, NULL); | |
520 | ||
521 | /* debug_level --------------------------------------------------------- */ | |
522 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
523 | char *buf) | |
524 | { | |
525 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
526 | } | |
527 | ||
528 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
529 | const char *buf, size_t count) | |
530 | { | |
531 | unsigned long t; | |
176750d6 | 532 | |
7252374a | 533 | if (parse_strtoul(buf, 0xffff, &t)) |
176750d6 HMH |
534 | return -EINVAL; |
535 | ||
536 | dbg_level = t; | |
537 | ||
538 | return count; | |
539 | } | |
540 | ||
541 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
542 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
543 | ||
544 | /* version ------------------------------------------------------------- */ | |
545 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
546 | char *buf) | |
547 | { | |
548 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", IBM_DESC, IBM_VERSION); | |
549 | } | |
550 | ||
551 | static DRIVER_ATTR(version, S_IRUGO, | |
552 | tpacpi_driver_version_show, NULL); | |
553 | ||
554 | /* --------------------------------------------------------------------- */ | |
555 | ||
556 | static struct driver_attribute* tpacpi_driver_attributes[] = { | |
557 | &driver_attr_debug_level, &driver_attr_version, | |
558 | &driver_attr_interface_version, | |
559 | }; | |
560 | ||
561 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
562 | { | |
563 | int i, res; | |
564 | ||
565 | i = 0; | |
566 | res = 0; | |
567 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
568 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
569 | i++; | |
570 | } | |
571 | ||
572 | return res; | |
573 | } | |
574 | ||
575 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
576 | { | |
577 | int i; | |
578 | ||
579 | for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) | |
580 | driver_remove_file(drv, tpacpi_driver_attributes[i]); | |
581 | } | |
582 | ||
7252374a HMH |
583 | /************************************************************************* |
584 | * sysfs support helpers | |
585 | */ | |
586 | ||
587 | struct attribute_set_obj { | |
588 | struct attribute_set s; | |
589 | struct attribute *a; | |
590 | } __attribute__((packed)); | |
591 | ||
592 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
593 | const char* name) | |
594 | { | |
595 | struct attribute_set_obj *sobj; | |
596 | ||
597 | if (max_members == 0) | |
598 | return NULL; | |
599 | ||
600 | /* Allocates space for implicit NULL at the end too */ | |
601 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
602 | max_members * sizeof(struct attribute *), | |
603 | GFP_KERNEL); | |
604 | if (!sobj) | |
605 | return NULL; | |
606 | sobj->s.max_members = max_members; | |
607 | sobj->s.group.attrs = &sobj->a; | |
608 | sobj->s.group.name = name; | |
609 | ||
610 | return &sobj->s; | |
611 | } | |
612 | ||
613 | /* not multi-threaded safe, use it in a single thread per set */ | |
614 | static int add_to_attr_set(struct attribute_set* s, struct attribute *attr) | |
615 | { | |
616 | if (!s || !attr) | |
617 | return -EINVAL; | |
618 | ||
619 | if (s->members >= s->max_members) | |
620 | return -ENOMEM; | |
621 | ||
622 | s->group.attrs[s->members] = attr; | |
623 | s->members++; | |
624 | ||
625 | return 0; | |
626 | } | |
627 | ||
628 | static int add_many_to_attr_set(struct attribute_set* s, | |
629 | struct attribute **attr, | |
630 | unsigned int count) | |
631 | { | |
632 | int i, res; | |
633 | ||
634 | for (i = 0; i < count; i++) { | |
635 | res = add_to_attr_set(s, attr[i]); | |
636 | if (res) | |
637 | return res; | |
638 | } | |
639 | ||
640 | return 0; | |
641 | } | |
642 | ||
643 | static void delete_attr_set(struct attribute_set* s, struct kobject *kobj) | |
644 | { | |
645 | sysfs_remove_group(kobj, &s->group); | |
646 | destroy_attr_set(s); | |
647 | } | |
648 | ||
649 | static int parse_strtoul(const char *buf, | |
650 | unsigned long max, unsigned long *value) | |
651 | { | |
652 | char *endp; | |
653 | ||
654 | *value = simple_strtoul(buf, &endp, 0); | |
655 | while (*endp && isspace(*endp)) | |
656 | endp++; | |
657 | if (*endp || *value > max) | |
658 | return -EINVAL; | |
659 | ||
660 | return 0; | |
661 | } | |
662 | ||
56b6aeb0 HMH |
663 | /**************************************************************************** |
664 | **************************************************************************** | |
665 | * | |
666 | * Subdrivers | |
667 | * | |
668 | **************************************************************************** | |
669 | ****************************************************************************/ | |
670 | ||
671 | /************************************************************************* | |
142cfc90 | 672 | * thinkpad-acpi init subdriver |
56b6aeb0 HMH |
673 | */ |
674 | ||
a5763f22 | 675 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
676 | { |
677 | printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); | |
678 | printk(IBM_INFO "%s\n", IBM_URL); | |
679 | ||
3945ac36 HMH |
680 | if (ibm_thinkpad_ec_found) |
681 | printk(IBM_INFO "ThinkPad EC firmware %s\n", | |
682 | ibm_thinkpad_ec_found); | |
683 | ||
1da177e4 LT |
684 | return 0; |
685 | } | |
686 | ||
643f12db | 687 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
688 | { |
689 | int len = 0; | |
690 | ||
691 | len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); | |
692 | len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); | |
693 | ||
694 | return len; | |
695 | } | |
696 | ||
a5763f22 HMH |
697 | static struct ibm_struct thinkpad_acpi_driver_data = { |
698 | .name = "driver", | |
699 | .read = thinkpad_acpi_driver_read, | |
700 | }; | |
701 | ||
56b6aeb0 HMH |
702 | /************************************************************************* |
703 | * Hotkey subdriver | |
704 | */ | |
705 | ||
78f81cc4 BD |
706 | static int hotkey_orig_status; |
707 | static int hotkey_orig_mask; | |
708 | ||
a0416420 HMH |
709 | static struct attribute_set *hotkey_dev_attributes = NULL; |
710 | ||
711 | /* sysfs hotkey enable ------------------------------------------------- */ | |
712 | static ssize_t hotkey_enable_show(struct device *dev, | |
713 | struct device_attribute *attr, | |
714 | char *buf) | |
715 | { | |
716 | int res, status, mask; | |
717 | ||
718 | res = hotkey_get(&status, &mask); | |
719 | if (res) | |
720 | return res; | |
721 | ||
722 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
723 | } | |
724 | ||
725 | static ssize_t hotkey_enable_store(struct device *dev, | |
726 | struct device_attribute *attr, | |
727 | const char *buf, size_t count) | |
728 | { | |
729 | unsigned long t; | |
730 | int res, status, mask; | |
731 | ||
732 | if (parse_strtoul(buf, 1, &t)) | |
733 | return -EINVAL; | |
734 | ||
735 | res = hotkey_get(&status, &mask); | |
736 | if (!res) | |
737 | res = hotkey_set(t, mask); | |
738 | ||
739 | return (res) ? res : count; | |
740 | } | |
741 | ||
742 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 743 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
744 | hotkey_enable_show, hotkey_enable_store); |
745 | ||
746 | /* sysfs hotkey mask --------------------------------------------------- */ | |
747 | static ssize_t hotkey_mask_show(struct device *dev, | |
748 | struct device_attribute *attr, | |
749 | char *buf) | |
750 | { | |
751 | int res, status, mask; | |
752 | ||
753 | res = hotkey_get(&status, &mask); | |
754 | if (res) | |
755 | return res; | |
756 | ||
757 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", mask); | |
758 | } | |
759 | ||
760 | static ssize_t hotkey_mask_store(struct device *dev, | |
761 | struct device_attribute *attr, | |
762 | const char *buf, size_t count) | |
763 | { | |
764 | unsigned long t; | |
765 | int res, status, mask; | |
766 | ||
767 | if (parse_strtoul(buf, 0xffff, &t)) | |
768 | return -EINVAL; | |
769 | ||
770 | res = hotkey_get(&status, &mask); | |
771 | if (!res) | |
772 | hotkey_set(status, t); | |
773 | ||
774 | return (res) ? res : count; | |
775 | } | |
776 | ||
777 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 778 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
779 | hotkey_mask_show, hotkey_mask_store); |
780 | ||
781 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
782 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
783 | struct device_attribute *attr, | |
784 | char *buf) | |
785 | { | |
786 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
787 | } | |
788 | ||
789 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 790 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
791 | |
792 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
793 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
794 | struct device_attribute *attr, | |
795 | char *buf) | |
796 | { | |
797 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", hotkey_orig_mask); | |
798 | } | |
799 | ||
800 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 801 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 HMH |
802 | |
803 | /* --------------------------------------------------------------------- */ | |
804 | ||
805 | static struct attribute *hotkey_mask_attributes[] = { | |
806 | &dev_attr_hotkey_mask.attr, | |
807 | &dev_attr_hotkey_bios_enabled.attr, | |
808 | &dev_attr_hotkey_bios_mask.attr, | |
809 | }; | |
810 | ||
a5763f22 | 811 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 812 | { |
b86c4722 HMH |
813 | int res; |
814 | ||
fe08bc4b HMH |
815 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
816 | ||
8d376cd6 | 817 | IBM_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 818 | mutex_init(&hotkey_mutex); |
5fba344c | 819 | |
56b6aeb0 | 820 | /* hotkey not supported on 570 */ |
d8fd94d9 | 821 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 822 | |
fe08bc4b | 823 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 824 | str_supported(tp_features.hotkey)); |
fe08bc4b | 825 | |
d8fd94d9 | 826 | if (tp_features.hotkey) { |
cc4c24e1 | 827 | hotkey_dev_attributes = create_attr_set(4, NULL); |
a0416420 HMH |
828 | if (!hotkey_dev_attributes) |
829 | return -ENOMEM; | |
830 | res = add_to_attr_set(hotkey_dev_attributes, | |
831 | &dev_attr_hotkey_enable.attr); | |
832 | if (res) | |
833 | return res; | |
834 | ||
56b6aeb0 HMH |
835 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
836 | A30, R30, R31, T20-22, X20-21, X22-24 */ | |
d8fd94d9 HMH |
837 | tp_features.hotkey_mask = |
838 | acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); | |
56b6aeb0 | 839 | |
fe08bc4b | 840 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 841 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 842 | |
b86c4722 | 843 | res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask); |
a0416420 HMH |
844 | if (!res && tp_features.hotkey_mask) { |
845 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
846 | hotkey_mask_attributes, | |
847 | ARRAY_SIZE(hotkey_mask_attributes)); | |
848 | } | |
849 | if (!res) | |
850 | res = register_attr_set_with_sysfs( | |
851 | hotkey_dev_attributes, | |
852 | &tpacpi_pdev->dev.kobj); | |
853 | ||
b86c4722 HMH |
854 | if (res) |
855 | return res; | |
56b6aeb0 HMH |
856 | } |
857 | ||
d8fd94d9 | 858 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
859 | } |
860 | ||
861 | static void hotkey_exit(void) | |
862 | { | |
b86c4722 HMH |
863 | int res; |
864 | ||
d8fd94d9 | 865 | if (tp_features.hotkey) { |
fe08bc4b | 866 | dbg_printk(TPACPI_DBG_EXIT, "restoring original hotkey mask\n"); |
b86c4722 HMH |
867 | res = hotkey_set(hotkey_orig_status, hotkey_orig_mask); |
868 | if (res) | |
869 | printk(IBM_ERR "failed to restore hotkey to BIOS defaults\n"); | |
5fba344c | 870 | } |
a0416420 HMH |
871 | |
872 | if (hotkey_dev_attributes) { | |
873 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
874 | hotkey_dev_attributes = NULL; | |
875 | } | |
56b6aeb0 HMH |
876 | } |
877 | ||
878 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
879 | { | |
880 | int hkey; | |
881 | ||
882 | if (acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) | |
8d376cd6 | 883 | acpi_bus_generate_event(ibm->acpi->device, event, hkey); |
56b6aeb0 HMH |
884 | else { |
885 | printk(IBM_ERR "unknown hotkey event %d\n", event); | |
8d376cd6 | 886 | acpi_bus_generate_event(ibm->acpi->device, event, 0); |
56b6aeb0 HMH |
887 | } |
888 | } | |
889 | ||
40ca9fdf HMH |
890 | /* |
891 | * Call with hotkey_mutex held | |
892 | */ | |
78f81cc4 | 893 | static int hotkey_get(int *status, int *mask) |
1da177e4 LT |
894 | { |
895 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
b86c4722 | 896 | return -EIO; |
78f81cc4 | 897 | |
d8fd94d9 | 898 | if (tp_features.hotkey_mask) |
78f81cc4 | 899 | if (!acpi_evalf(hkey_handle, mask, "DHKN", "d")) |
b86c4722 | 900 | return -EIO; |
78f81cc4 | 901 | |
b86c4722 | 902 | return 0; |
1da177e4 LT |
903 | } |
904 | ||
40ca9fdf HMH |
905 | /* |
906 | * Call with hotkey_mutex held | |
907 | */ | |
78f81cc4 | 908 | static int hotkey_set(int status, int mask) |
1da177e4 LT |
909 | { |
910 | int i; | |
911 | ||
912 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
b86c4722 | 913 | return -EIO; |
1da177e4 | 914 | |
d8fd94d9 | 915 | if (tp_features.hotkey_mask) |
78f81cc4 BD |
916 | for (i = 0; i < 32; i++) { |
917 | int bit = ((1 << i) & mask) != 0; | |
918 | if (!acpi_evalf(hkey_handle, | |
919 | NULL, "MHKM", "vdd", i + 1, bit)) | |
b86c4722 | 920 | return -EIO; |
78f81cc4 | 921 | } |
1da177e4 | 922 | |
b86c4722 | 923 | return 0; |
1da177e4 LT |
924 | } |
925 | ||
a0416420 | 926 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 927 | static int hotkey_read(char *p) |
1da177e4 | 928 | { |
b86c4722 | 929 | int res, status, mask; |
1da177e4 LT |
930 | int len = 0; |
931 | ||
d8fd94d9 | 932 | if (!tp_features.hotkey) { |
78f81cc4 BD |
933 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
934 | return len; | |
935 | } | |
936 | ||
40ca9fdf HMH |
937 | res = mutex_lock_interruptible(&hotkey_mutex); |
938 | if (res < 0) | |
939 | return res; | |
b86c4722 | 940 | res = hotkey_get(&status, &mask); |
40ca9fdf | 941 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
942 | if (res) |
943 | return res; | |
1da177e4 LT |
944 | |
945 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 946 | if (tp_features.hotkey_mask) { |
1da177e4 LT |
947 | len += sprintf(p + len, "mask:\t\t0x%04x\n", mask); |
948 | len += sprintf(p + len, | |
949 | "commands:\tenable, disable, reset, <mask>\n"); | |
950 | } else { | |
951 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
952 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
953 | } | |
954 | ||
955 | return len; | |
956 | } | |
957 | ||
78f81cc4 | 958 | static int hotkey_write(char *buf) |
1da177e4 | 959 | { |
b86c4722 | 960 | int res, status, mask; |
1da177e4 LT |
961 | char *cmd; |
962 | int do_cmd = 0; | |
963 | ||
d8fd94d9 | 964 | if (!tp_features.hotkey) |
1da177e4 LT |
965 | return -ENODEV; |
966 | ||
40ca9fdf HMH |
967 | res = mutex_lock_interruptible(&hotkey_mutex); |
968 | if (res < 0) | |
969 | return res; | |
970 | ||
b86c4722 HMH |
971 | res = hotkey_get(&status, &mask); |
972 | if (res) | |
40ca9fdf | 973 | goto errexit; |
78f81cc4 | 974 | |
40ca9fdf | 975 | res = 0; |
1da177e4 LT |
976 | while ((cmd = next_cmd(&buf))) { |
977 | if (strlencmp(cmd, "enable") == 0) { | |
978 | status = 1; | |
979 | } else if (strlencmp(cmd, "disable") == 0) { | |
980 | status = 0; | |
981 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
982 | status = hotkey_orig_status; |
983 | mask = hotkey_orig_mask; | |
1da177e4 LT |
984 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
985 | /* mask set */ | |
986 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
987 | /* mask set */ | |
40ca9fdf HMH |
988 | } else { |
989 | res = -EINVAL; | |
990 | goto errexit; | |
991 | } | |
1da177e4 LT |
992 | do_cmd = 1; |
993 | } | |
994 | ||
40ca9fdf | 995 | if (do_cmd) |
b86c4722 | 996 | res = hotkey_set(status, mask); |
1da177e4 | 997 | |
40ca9fdf HMH |
998 | errexit: |
999 | mutex_unlock(&hotkey_mutex); | |
1000 | return res; | |
78f81cc4 | 1001 | } |
1da177e4 | 1002 | |
8d376cd6 HMH |
1003 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1004 | .hid = IBM_HKEY_HID, | |
1005 | .notify = hotkey_notify, | |
1006 | .handle = &hkey_handle, | |
1007 | .type = ACPI_DEVICE_NOTIFY, | |
1008 | }; | |
1009 | ||
a5763f22 HMH |
1010 | static struct ibm_struct hotkey_driver_data = { |
1011 | .name = "hotkey", | |
a5763f22 HMH |
1012 | .read = hotkey_read, |
1013 | .write = hotkey_write, | |
1014 | .exit = hotkey_exit, | |
8d376cd6 | 1015 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
1016 | }; |
1017 | ||
56b6aeb0 HMH |
1018 | /************************************************************************* |
1019 | * Bluetooth subdriver | |
1020 | */ | |
1da177e4 | 1021 | |
d3a6ade4 HMH |
1022 | /* sysfs bluetooth enable ---------------------------------------------- */ |
1023 | static ssize_t bluetooth_enable_show(struct device *dev, | |
1024 | struct device_attribute *attr, | |
1025 | char *buf) | |
1026 | { | |
1027 | int status; | |
1028 | ||
1029 | status = bluetooth_get_radiosw(); | |
1030 | if (status < 0) | |
1031 | return status; | |
1032 | ||
1033 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
1034 | } | |
1035 | ||
1036 | static ssize_t bluetooth_enable_store(struct device *dev, | |
1037 | struct device_attribute *attr, | |
1038 | const char *buf, size_t count) | |
1039 | { | |
1040 | unsigned long t; | |
1041 | int res; | |
1042 | ||
1043 | if (parse_strtoul(buf, 1, &t)) | |
1044 | return -EINVAL; | |
1045 | ||
1046 | res = bluetooth_set_radiosw(t); | |
1047 | ||
1048 | return (res) ? res : count; | |
1049 | } | |
1050 | ||
1051 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 1052 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
1053 | bluetooth_enable_show, bluetooth_enable_store); |
1054 | ||
1055 | /* --------------------------------------------------------------------- */ | |
1056 | ||
1057 | static struct attribute *bluetooth_attributes[] = { | |
1058 | &dev_attr_bluetooth_enable.attr, | |
1059 | NULL | |
1060 | }; | |
1061 | ||
1062 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
1063 | .attrs = bluetooth_attributes, |
1064 | }; | |
1065 | ||
a5763f22 | 1066 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 1067 | { |
d3a6ade4 | 1068 | int res; |
d6fdd1e9 HMH |
1069 | int status = 0; |
1070 | ||
fe08bc4b HMH |
1071 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
1072 | ||
8d376cd6 | 1073 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1074 | |
78f81cc4 BD |
1075 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1076 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 1077 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
1078 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
1079 | ||
1080 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
1081 | str_supported(tp_features.bluetooth), | |
1082 | status); | |
1083 | ||
d3a6ade4 HMH |
1084 | if (tp_features.bluetooth) { |
1085 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
1086 | /* no bluetooth hardware present in system */ | |
1087 | tp_features.bluetooth = 0; | |
1088 | dbg_printk(TPACPI_DBG_INIT, | |
1089 | "bluetooth hardware not installed\n"); | |
1090 | } else { | |
1091 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
1092 | &bluetooth_attr_group); | |
1093 | if (res) | |
1094 | return res; | |
1095 | } | |
d6fdd1e9 | 1096 | } |
fe08bc4b | 1097 | |
d8fd94d9 | 1098 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
1099 | } |
1100 | ||
d3a6ade4 HMH |
1101 | static void bluetooth_exit(void) |
1102 | { | |
1103 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
1104 | &bluetooth_attr_group); | |
1105 | } | |
1106 | ||
d6fdd1e9 | 1107 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
1108 | { |
1109 | int status; | |
1110 | ||
d6fdd1e9 HMH |
1111 | if (!tp_features.bluetooth) |
1112 | return -ENODEV; | |
1da177e4 | 1113 | |
d6fdd1e9 HMH |
1114 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
1115 | return -EIO; | |
1116 | ||
1117 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
1118 | } | |
1119 | ||
1120 | static int bluetooth_set_radiosw(int radio_on) | |
1121 | { | |
1122 | int status; | |
1123 | ||
1124 | if (!tp_features.bluetooth) | |
1125 | return -ENODEV; | |
1126 | ||
1127 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
1128 | return -EIO; | |
1129 | if (radio_on) | |
1130 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
1131 | else | |
1132 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
1133 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
1134 | return -EIO; | |
1135 | ||
1136 | return 0; | |
1da177e4 LT |
1137 | } |
1138 | ||
d3a6ade4 | 1139 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 1140 | static int bluetooth_read(char *p) |
1da177e4 LT |
1141 | { |
1142 | int len = 0; | |
d6fdd1e9 | 1143 | int status = bluetooth_get_radiosw(); |
1da177e4 | 1144 | |
d8fd94d9 | 1145 | if (!tp_features.bluetooth) |
1da177e4 | 1146 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 1147 | else { |
d6fdd1e9 HMH |
1148 | len += sprintf(p + len, "status:\t\t%s\n", |
1149 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
1150 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1151 | } | |
1152 | ||
1153 | return len; | |
1154 | } | |
1155 | ||
78f81cc4 | 1156 | static int bluetooth_write(char *buf) |
1da177e4 | 1157 | { |
1da177e4 | 1158 | char *cmd; |
1da177e4 | 1159 | |
d8fd94d9 | 1160 | if (!tp_features.bluetooth) |
78f81cc4 | 1161 | return -ENODEV; |
1da177e4 LT |
1162 | |
1163 | while ((cmd = next_cmd(&buf))) { | |
1164 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1165 | bluetooth_set_radiosw(1); |
1da177e4 | 1166 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1167 | bluetooth_set_radiosw(0); |
1da177e4 LT |
1168 | } else |
1169 | return -EINVAL; | |
1da177e4 LT |
1170 | } |
1171 | ||
1da177e4 LT |
1172 | return 0; |
1173 | } | |
1174 | ||
a5763f22 HMH |
1175 | static struct ibm_struct bluetooth_driver_data = { |
1176 | .name = "bluetooth", | |
1177 | .read = bluetooth_read, | |
1178 | .write = bluetooth_write, | |
d3a6ade4 | 1179 | .exit = bluetooth_exit, |
a5763f22 HMH |
1180 | }; |
1181 | ||
56b6aeb0 HMH |
1182 | /************************************************************************* |
1183 | * Wan subdriver | |
1184 | */ | |
1185 | ||
d3a6ade4 HMH |
1186 | /* sysfs wan enable ---------------------------------------------------- */ |
1187 | static ssize_t wan_enable_show(struct device *dev, | |
1188 | struct device_attribute *attr, | |
1189 | char *buf) | |
1190 | { | |
1191 | int status; | |
1192 | ||
1193 | status = wan_get_radiosw(); | |
1194 | if (status < 0) | |
1195 | return status; | |
1196 | ||
1197 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
1198 | } | |
1199 | ||
1200 | static ssize_t wan_enable_store(struct device *dev, | |
1201 | struct device_attribute *attr, | |
1202 | const char *buf, size_t count) | |
1203 | { | |
1204 | unsigned long t; | |
1205 | int res; | |
1206 | ||
1207 | if (parse_strtoul(buf, 1, &t)) | |
1208 | return -EINVAL; | |
1209 | ||
1210 | res = wan_set_radiosw(t); | |
1211 | ||
1212 | return (res) ? res : count; | |
1213 | } | |
1214 | ||
1215 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 1216 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
1217 | wan_enable_show, wan_enable_store); |
1218 | ||
1219 | /* --------------------------------------------------------------------- */ | |
1220 | ||
1221 | static struct attribute *wan_attributes[] = { | |
1222 | &dev_attr_wan_enable.attr, | |
1223 | NULL | |
1224 | }; | |
1225 | ||
1226 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
1227 | .attrs = wan_attributes, |
1228 | }; | |
1229 | ||
a5763f22 | 1230 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 1231 | { |
d3a6ade4 | 1232 | int res; |
d6fdd1e9 HMH |
1233 | int status = 0; |
1234 | ||
fe08bc4b HMH |
1235 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
1236 | ||
8d376cd6 | 1237 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1238 | |
d8fd94d9 | 1239 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
1240 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
1241 | ||
1242 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
1243 | str_supported(tp_features.wan), | |
1244 | status); | |
1245 | ||
d3a6ade4 HMH |
1246 | if (tp_features.wan) { |
1247 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
1248 | /* no wan hardware present in system */ | |
1249 | tp_features.wan = 0; | |
1250 | dbg_printk(TPACPI_DBG_INIT, | |
1251 | "wan hardware not installed\n"); | |
1252 | } else { | |
1253 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
1254 | &wan_attr_group); | |
1255 | if (res) | |
1256 | return res; | |
1257 | } | |
d6fdd1e9 | 1258 | } |
fe08bc4b | 1259 | |
d8fd94d9 | 1260 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
1261 | } |
1262 | ||
d3a6ade4 HMH |
1263 | static void wan_exit(void) |
1264 | { | |
1265 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
1266 | &wan_attr_group); | |
1267 | } | |
1268 | ||
d6fdd1e9 | 1269 | static int wan_get_radiosw(void) |
42adb53c JF |
1270 | { |
1271 | int status; | |
1272 | ||
d6fdd1e9 HMH |
1273 | if (!tp_features.wan) |
1274 | return -ENODEV; | |
42adb53c | 1275 | |
d6fdd1e9 HMH |
1276 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
1277 | return -EIO; | |
1278 | ||
1279 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
1280 | } | |
1281 | ||
1282 | static int wan_set_radiosw(int radio_on) | |
1283 | { | |
1284 | int status; | |
1285 | ||
1286 | if (!tp_features.wan) | |
1287 | return -ENODEV; | |
1288 | ||
1289 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
1290 | return -EIO; | |
1291 | if (radio_on) | |
1292 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
1293 | else | |
1294 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
1295 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
1296 | return -EIO; | |
1297 | ||
1298 | return 0; | |
42adb53c JF |
1299 | } |
1300 | ||
d3a6ade4 | 1301 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
1302 | static int wan_read(char *p) |
1303 | { | |
1304 | int len = 0; | |
d6fdd1e9 | 1305 | int status = wan_get_radiosw(); |
42adb53c | 1306 | |
d8fd94d9 | 1307 | if (!tp_features.wan) |
42adb53c | 1308 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 1309 | else { |
d6fdd1e9 HMH |
1310 | len += sprintf(p + len, "status:\t\t%s\n", |
1311 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
1312 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1313 | } | |
1314 | ||
1315 | return len; | |
1316 | } | |
1317 | ||
1318 | static int wan_write(char *buf) | |
1319 | { | |
42adb53c | 1320 | char *cmd; |
42adb53c | 1321 | |
d8fd94d9 | 1322 | if (!tp_features.wan) |
42adb53c JF |
1323 | return -ENODEV; |
1324 | ||
1325 | while ((cmd = next_cmd(&buf))) { | |
1326 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1327 | wan_set_radiosw(1); |
42adb53c | 1328 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1329 | wan_set_radiosw(0); |
42adb53c JF |
1330 | } else |
1331 | return -EINVAL; | |
42adb53c JF |
1332 | } |
1333 | ||
42adb53c JF |
1334 | return 0; |
1335 | } | |
1336 | ||
a5763f22 HMH |
1337 | static struct ibm_struct wan_driver_data = { |
1338 | .name = "wan", | |
1339 | .read = wan_read, | |
1340 | .write = wan_write, | |
d3a6ade4 | 1341 | .exit = wan_exit, |
92641177 | 1342 | .flags.experimental = 1, |
a5763f22 HMH |
1343 | }; |
1344 | ||
56b6aeb0 HMH |
1345 | /************************************************************************* |
1346 | * Video subdriver | |
1347 | */ | |
1348 | ||
9a8e1738 HMH |
1349 | static enum video_access_mode video_supported; |
1350 | static int video_orig_autosw; | |
78f81cc4 | 1351 | |
56b6aeb0 HMH |
1352 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
1353 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
1354 | "\\_SB.PCI0.VID0", /* 770e */ | |
1355 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
1356 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
1357 | ); /* R30, R31 */ | |
1358 | ||
1359 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
1360 | ||
a5763f22 | 1361 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 1362 | { |
78f81cc4 BD |
1363 | int ivga; |
1364 | ||
fe08bc4b HMH |
1365 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
1366 | ||
8d376cd6 HMH |
1367 | IBM_ACPIHANDLE_INIT(vid); |
1368 | IBM_ACPIHANDLE_INIT(vid2); | |
5fba344c | 1369 | |
78f81cc4 BD |
1370 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
1371 | /* G41, assume IVGA doesn't change */ | |
1372 | vid_handle = vid2_handle; | |
1373 | ||
1374 | if (!vid_handle) | |
1375 | /* video switching not supported on R30, R31 */ | |
efa27145 | 1376 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
1377 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
1378 | /* 570 */ | |
efa27145 | 1379 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
1380 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
1381 | /* 600e/x, 770e, 770x */ | |
efa27145 | 1382 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
1383 | else |
1384 | /* all others */ | |
efa27145 | 1385 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 1386 | |
fe08bc4b HMH |
1387 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
1388 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
1389 | video_supported); | |
1390 | ||
5fba344c | 1391 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
1392 | } |
1393 | ||
56b6aeb0 HMH |
1394 | static void video_exit(void) |
1395 | { | |
83f34724 HMH |
1396 | dbg_printk(TPACPI_DBG_EXIT, |
1397 | "restoring original video autoswitch mode\n"); | |
1398 | if (video_autosw_set(video_orig_autosw)) | |
1399 | printk(IBM_ERR "error while trying to restore original " | |
1400 | "video autoswitch mode\n"); | |
56b6aeb0 HMH |
1401 | } |
1402 | ||
83f34724 | 1403 | static int video_outputsw_get(void) |
1da177e4 LT |
1404 | { |
1405 | int status = 0; | |
1406 | int i; | |
1407 | ||
83f34724 HMH |
1408 | switch (video_supported) { |
1409 | case TPACPI_VIDEO_570: | |
1410 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
1411 | TP_ACPI_VIDEO_570_PHSCMD)) | |
1412 | return -EIO; | |
1413 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
1414 | break; | |
1415 | case TPACPI_VIDEO_770: | |
1416 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1417 | return -EIO; | |
1418 | if (i) | |
1419 | status |= TP_ACPI_VIDEO_S_LCD; | |
1420 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1421 | return -EIO; | |
1422 | if (i) | |
1423 | status |= TP_ACPI_VIDEO_S_CRT; | |
1424 | break; | |
1425 | case TPACPI_VIDEO_NEW: | |
1426 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
1427 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1428 | return -EIO; | |
1429 | if (i) | |
1430 | status |= TP_ACPI_VIDEO_S_CRT; | |
1431 | ||
1432 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
1433 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1434 | return -EIO; | |
1435 | if (i) | |
1436 | status |= TP_ACPI_VIDEO_S_LCD; | |
1437 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
1438 | return -EIO; | |
1439 | if (i) | |
1440 | status |= TP_ACPI_VIDEO_S_DVI; | |
1441 | break; | |
1442 | default: | |
1443 | return -ENOSYS; | |
78f81cc4 BD |
1444 | } |
1445 | ||
1446 | return status; | |
1447 | } | |
1da177e4 | 1448 | |
83f34724 | 1449 | static int video_outputsw_set(int status) |
78f81cc4 | 1450 | { |
83f34724 HMH |
1451 | int autosw; |
1452 | int res = 0; | |
1453 | ||
1454 | switch (video_supported) { | |
1455 | case TPACPI_VIDEO_570: | |
1456 | res = acpi_evalf(NULL, NULL, | |
1457 | "\\_SB.PHS2", "vdd", | |
1458 | TP_ACPI_VIDEO_570_PHS2CMD, | |
1459 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
1460 | break; | |
1461 | case TPACPI_VIDEO_770: | |
1462 | autosw = video_autosw_get(); | |
1463 | if (autosw < 0) | |
1464 | return autosw; | |
1da177e4 | 1465 | |
83f34724 HMH |
1466 | res = video_autosw_set(1); |
1467 | if (res) | |
1468 | return res; | |
1469 | res = acpi_evalf(vid_handle, NULL, | |
1470 | "ASWT", "vdd", status * 0x100, 0); | |
1471 | if (!autosw && video_autosw_set(autosw)) { | |
1472 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1473 | return -EIO; | |
1474 | } | |
1475 | break; | |
1476 | case TPACPI_VIDEO_NEW: | |
1477 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
1478 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
1479 | break; | |
1480 | default: | |
1481 | return -ENOSYS; | |
1482 | } | |
1da177e4 | 1483 | |
83f34724 | 1484 | return (res)? 0 : -EIO; |
1da177e4 LT |
1485 | } |
1486 | ||
83f34724 | 1487 | static int video_autosw_get(void) |
78f81cc4 | 1488 | { |
83f34724 | 1489 | int autosw = 0; |
78f81cc4 | 1490 | |
83f34724 HMH |
1491 | switch (video_supported) { |
1492 | case TPACPI_VIDEO_570: | |
1493 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
1494 | return -EIO; | |
1495 | break; | |
1496 | case TPACPI_VIDEO_770: | |
1497 | case TPACPI_VIDEO_NEW: | |
1498 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
1499 | return -EIO; | |
1500 | break; | |
1501 | default: | |
1502 | return -ENOSYS; | |
1503 | } | |
78f81cc4 | 1504 | |
83f34724 | 1505 | return autosw & 1; |
78f81cc4 BD |
1506 | } |
1507 | ||
83f34724 | 1508 | static int video_autosw_set(int enable) |
78f81cc4 | 1509 | { |
83f34724 HMH |
1510 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
1511 | return -EIO; | |
1512 | return 0; | |
78f81cc4 BD |
1513 | } |
1514 | ||
83f34724 | 1515 | static int video_outputsw_cycle(void) |
78f81cc4 | 1516 | { |
83f34724 HMH |
1517 | int autosw = video_autosw_get(); |
1518 | int res; | |
78f81cc4 | 1519 | |
83f34724 HMH |
1520 | if (autosw < 0) |
1521 | return autosw; | |
78f81cc4 | 1522 | |
83f34724 HMH |
1523 | switch (video_supported) { |
1524 | case TPACPI_VIDEO_570: | |
1525 | res = video_autosw_set(1); | |
1526 | if (res) | |
1527 | return res; | |
1528 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
1529 | break; | |
1530 | case TPACPI_VIDEO_770: | |
1531 | case TPACPI_VIDEO_NEW: | |
1532 | res = video_autosw_set(1); | |
1533 | if (res) | |
1534 | return res; | |
1535 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
1536 | break; | |
1537 | default: | |
1538 | return -ENOSYS; | |
1539 | } | |
1540 | if (!autosw && video_autosw_set(autosw)) { | |
1541 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1542 | return -EIO; | |
78f81cc4 BD |
1543 | } |
1544 | ||
83f34724 HMH |
1545 | return (res)? 0 : -EIO; |
1546 | } | |
1547 | ||
1548 | static int video_expand_toggle(void) | |
1549 | { | |
1550 | switch (video_supported) { | |
1551 | case TPACPI_VIDEO_570: | |
1552 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
1553 | 0 : -EIO; | |
1554 | case TPACPI_VIDEO_770: | |
1555 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
1556 | 0 : -EIO; | |
1557 | case TPACPI_VIDEO_NEW: | |
1558 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
1559 | 0 : -EIO; | |
1560 | default: | |
1561 | return -ENOSYS; | |
1562 | } | |
1563 | /* not reached */ | |
78f81cc4 BD |
1564 | } |
1565 | ||
56b6aeb0 HMH |
1566 | static int video_read(char *p) |
1567 | { | |
83f34724 | 1568 | int status, autosw; |
56b6aeb0 HMH |
1569 | int len = 0; |
1570 | ||
83f34724 | 1571 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
1572 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1573 | return len; | |
1574 | } | |
1575 | ||
83f34724 HMH |
1576 | status = video_outputsw_get(); |
1577 | if (status < 0) | |
1578 | return status; | |
1579 | ||
1580 | autosw = video_autosw_get(); | |
1581 | if (autosw < 0) | |
1582 | return autosw; | |
1583 | ||
56b6aeb0 HMH |
1584 | len += sprintf(p + len, "status:\t\tsupported\n"); |
1585 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
1586 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 1587 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1588 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
1589 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
1590 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
1591 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 1592 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1593 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
1594 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
1595 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
1596 | ||
1597 | return len; | |
1598 | } | |
1599 | ||
78f81cc4 | 1600 | static int video_write(char *buf) |
1da177e4 LT |
1601 | { |
1602 | char *cmd; | |
1603 | int enable, disable, status; | |
83f34724 | 1604 | int res; |
1da177e4 | 1605 | |
83f34724 | 1606 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
1607 | return -ENODEV; |
1608 | ||
83f34724 HMH |
1609 | enable = 0; |
1610 | disable = 0; | |
1da177e4 LT |
1611 | |
1612 | while ((cmd = next_cmd(&buf))) { | |
1613 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 1614 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 1615 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 1616 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 1617 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 1618 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 1619 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 1620 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 1621 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1622 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 1623 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 1624 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1625 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 1626 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 1627 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
1628 | res = video_autosw_set(1); |
1629 | if (res) | |
1630 | return res; | |
1da177e4 | 1631 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
1632 | res = video_autosw_set(0); |
1633 | if (res) | |
1634 | return res; | |
1da177e4 | 1635 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
1636 | res = video_outputsw_cycle(); |
1637 | if (res) | |
1638 | return res; | |
1da177e4 | 1639 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
1640 | res = video_expand_toggle(); |
1641 | if (res) | |
1642 | return res; | |
1da177e4 LT |
1643 | } else |
1644 | return -EINVAL; | |
1645 | } | |
1646 | ||
1647 | if (enable || disable) { | |
83f34724 HMH |
1648 | status = video_outputsw_get(); |
1649 | if (status < 0) | |
1650 | return status; | |
1651 | res = video_outputsw_set((status & ~disable) | enable); | |
1652 | if (res) | |
1653 | return res; | |
1da177e4 LT |
1654 | } |
1655 | ||
1656 | return 0; | |
1657 | } | |
1658 | ||
a5763f22 HMH |
1659 | static struct ibm_struct video_driver_data = { |
1660 | .name = "video", | |
1661 | .read = video_read, | |
1662 | .write = video_write, | |
1663 | .exit = video_exit, | |
1664 | }; | |
1665 | ||
56b6aeb0 HMH |
1666 | /************************************************************************* |
1667 | * Light (thinklight) subdriver | |
1668 | */ | |
1da177e4 | 1669 | |
56b6aeb0 HMH |
1670 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
1671 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
1672 | ||
a5763f22 | 1673 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 1674 | { |
fe08bc4b HMH |
1675 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
1676 | ||
8d376cd6 HMH |
1677 | IBM_ACPIHANDLE_INIT(ledb); |
1678 | IBM_ACPIHANDLE_INIT(lght); | |
1679 | IBM_ACPIHANDLE_INIT(cmos); | |
5fba344c | 1680 | |
78f81cc4 | 1681 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 1682 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 1683 | |
d8fd94d9 | 1684 | if (tp_features.light) |
78f81cc4 BD |
1685 | /* light status not supported on |
1686 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
1687 | tp_features.light_status = |
1688 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 1689 | |
fe08bc4b | 1690 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 1691 | str_supported(tp_features.light)); |
fe08bc4b | 1692 | |
d8fd94d9 | 1693 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
1694 | } |
1695 | ||
78f81cc4 | 1696 | static int light_read(char *p) |
1da177e4 LT |
1697 | { |
1698 | int len = 0; | |
1699 | int status = 0; | |
1700 | ||
d8fd94d9 | 1701 | if (!tp_features.light) { |
78f81cc4 | 1702 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 1703 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
1704 | len += sprintf(p + len, "status:\t\tunknown\n"); |
1705 | len += sprintf(p + len, "commands:\ton, off\n"); | |
1706 | } else { | |
1da177e4 LT |
1707 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
1708 | return -EIO; | |
1709 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
1710 | len += sprintf(p + len, "commands:\ton, off\n"); |
1711 | } | |
1da177e4 LT |
1712 | |
1713 | return len; | |
1714 | } | |
1715 | ||
78f81cc4 | 1716 | static int light_write(char *buf) |
1da177e4 LT |
1717 | { |
1718 | int cmos_cmd, lght_cmd; | |
1719 | char *cmd; | |
1720 | int success; | |
78f81cc4 | 1721 | |
d8fd94d9 | 1722 | if (!tp_features.light) |
78f81cc4 BD |
1723 | return -ENODEV; |
1724 | ||
1da177e4 LT |
1725 | while ((cmd = next_cmd(&buf))) { |
1726 | if (strlencmp(cmd, "on") == 0) { | |
1727 | cmos_cmd = 0x0c; | |
1728 | lght_cmd = 1; | |
1729 | } else if (strlencmp(cmd, "off") == 0) { | |
1730 | cmos_cmd = 0x0d; | |
1731 | lght_cmd = 0; | |
1732 | } else | |
1733 | return -EINVAL; | |
78f81cc4 | 1734 | |
1da177e4 | 1735 | success = cmos_handle ? |
78f81cc4 BD |
1736 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
1737 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
1738 | if (!success) |
1739 | return -EIO; | |
1740 | } | |
1741 | ||
1742 | return 0; | |
1743 | } | |
1744 | ||
a5763f22 HMH |
1745 | static struct ibm_struct light_driver_data = { |
1746 | .name = "light", | |
1747 | .read = light_read, | |
1748 | .write = light_write, | |
1749 | }; | |
1750 | ||
56b6aeb0 HMH |
1751 | /************************************************************************* |
1752 | * Dock subdriver | |
1753 | */ | |
1da177e4 | 1754 | |
85998248 | 1755 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 HMH |
1756 | |
1757 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ | |
1758 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
1759 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
1760 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
1761 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
1762 | ||
5fba344c HMH |
1763 | /* don't list other alternatives as we install a notify handler on the 570 */ |
1764 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
1765 | ||
d94a7f16 HMH |
1766 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
1767 | { | |
1768 | .notify = dock_notify, | |
1769 | .handle = &dock_handle, | |
1770 | .type = ACPI_SYSTEM_NOTIFY, | |
1771 | }, | |
1772 | { | |
1773 | .hid = IBM_PCI_HID, | |
1774 | .notify = dock_notify, | |
1775 | .handle = &pci_handle, | |
1776 | .type = ACPI_SYSTEM_NOTIFY, | |
1777 | }, | |
1778 | }; | |
1779 | ||
1780 | static struct ibm_struct dock_driver_data[2] = { | |
1781 | { | |
1782 | .name = "dock", | |
1783 | .read = dock_read, | |
1784 | .write = dock_write, | |
1785 | .acpi = &ibm_dock_acpidriver[0], | |
1786 | }, | |
1787 | { | |
1788 | .name = "dock", | |
1789 | .acpi = &ibm_dock_acpidriver[1], | |
1790 | }, | |
1791 | }; | |
1792 | ||
1da177e4 LT |
1793 | #define dock_docked() (_sta(dock_handle) & 1) |
1794 | ||
a5763f22 | 1795 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 1796 | { |
fe08bc4b HMH |
1797 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
1798 | ||
8d376cd6 | 1799 | IBM_ACPIHANDLE_INIT(dock); |
5fba344c | 1800 | |
fe08bc4b HMH |
1801 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
1802 | str_supported(dock_handle != NULL)); | |
1803 | ||
5fba344c HMH |
1804 | return (dock_handle)? 0 : 1; |
1805 | } | |
1806 | ||
d94a7f16 HMH |
1807 | static int __init dock_init2(struct ibm_init_struct *iibm) |
1808 | { | |
1809 | int dock2_needed; | |
1810 | ||
1811 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
1812 | ||
1813 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
1814 | dock_driver_data[0].flags.acpi_notify_installed) { | |
1815 | IBM_ACPIHANDLE_INIT(pci); | |
1816 | dock2_needed = (pci_handle != NULL); | |
1817 | vdbg_printk(TPACPI_DBG_INIT, | |
1818 | "dock PCI handler for the TP 570 is %s\n", | |
1819 | str_supported(dock2_needed)); | |
1820 | } else { | |
1821 | vdbg_printk(TPACPI_DBG_INIT, | |
1822 | "dock subdriver part 2 not required\n"); | |
1823 | dock2_needed = 0; | |
1824 | } | |
1825 | ||
1826 | return (dock2_needed)? 0 : 1; | |
1827 | } | |
1828 | ||
56b6aeb0 HMH |
1829 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
1830 | { | |
1831 | int docked = dock_docked(); | |
8d376cd6 | 1832 | int pci = ibm->acpi->hid && strstr(ibm->acpi->hid, IBM_PCI_HID); |
56b6aeb0 HMH |
1833 | |
1834 | if (event == 1 && !pci) /* 570 */ | |
8d376cd6 | 1835 | acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */ |
56b6aeb0 | 1836 | else if (event == 1 && pci) /* 570 */ |
8d376cd6 | 1837 | acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */ |
56b6aeb0 | 1838 | else if (event == 3 && docked) |
8d376cd6 | 1839 | acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */ |
56b6aeb0 | 1840 | else if (event == 3 && !docked) |
8d376cd6 | 1841 | acpi_bus_generate_event(ibm->acpi->device, event, 2); /* undock */ |
56b6aeb0 | 1842 | else if (event == 0 && docked) |
8d376cd6 | 1843 | acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */ |
56b6aeb0 HMH |
1844 | else { |
1845 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
1846 | event, _sta(dock_handle)); | |
8d376cd6 | 1847 | acpi_bus_generate_event(ibm->acpi->device, event, 0); /* unknown */ |
56b6aeb0 HMH |
1848 | } |
1849 | } | |
1850 | ||
78f81cc4 | 1851 | static int dock_read(char *p) |
1da177e4 LT |
1852 | { |
1853 | int len = 0; | |
1854 | int docked = dock_docked(); | |
1855 | ||
1856 | if (!dock_handle) | |
1857 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1858 | else if (!docked) | |
1859 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
1860 | else { | |
1861 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
1862 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
1863 | } | |
1864 | ||
1865 | return len; | |
1866 | } | |
1867 | ||
78f81cc4 | 1868 | static int dock_write(char *buf) |
1da177e4 LT |
1869 | { |
1870 | char *cmd; | |
1871 | ||
1872 | if (!dock_docked()) | |
78f81cc4 | 1873 | return -ENODEV; |
1da177e4 LT |
1874 | |
1875 | while ((cmd = next_cmd(&buf))) { | |
1876 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
1877 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
1878 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
1879 | return -EIO; |
1880 | } else if (strlencmp(cmd, "dock") == 0) { | |
1881 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
1882 | return -EIO; | |
1883 | } else | |
1884 | return -EINVAL; | |
1da177e4 | 1885 | } |
56b6aeb0 HMH |
1886 | |
1887 | return 0; | |
1da177e4 | 1888 | } |
56b6aeb0 | 1889 | |
85998248 | 1890 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
1891 | |
1892 | /************************************************************************* | |
1893 | * Bay subdriver | |
1894 | */ | |
1da177e4 | 1895 | |
85998248 | 1896 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
56b6aeb0 HMH |
1897 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
1898 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
1899 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
1900 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
1901 | ); /* A21e, R30, R31 */ | |
1902 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
1903 | "_EJ0", /* all others */ | |
1904 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
1905 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
1906 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
1907 | ); /* all others */ | |
1908 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
1909 | "_EJ0", /* 770x */ | |
1910 | ); /* all others */ | |
1911 | ||
a5763f22 | 1912 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 1913 | { |
fe08bc4b HMH |
1914 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
1915 | ||
8d376cd6 | 1916 | IBM_ACPIHANDLE_INIT(bay); |
5fba344c | 1917 | if (bay_handle) |
8d376cd6 HMH |
1918 | IBM_ACPIHANDLE_INIT(bay_ej); |
1919 | IBM_ACPIHANDLE_INIT(bay2); | |
5fba344c | 1920 | if (bay2_handle) |
8d376cd6 | 1921 | IBM_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 1922 | |
d8fd94d9 HMH |
1923 | tp_features.bay_status = bay_handle && |
1924 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
1925 | tp_features.bay_status2 = bay2_handle && | |
1926 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 1927 | |
d8fd94d9 HMH |
1928 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
1929 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
1930 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
1931 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 1932 | |
fe08bc4b HMH |
1933 | vdbg_printk(TPACPI_DBG_INIT, |
1934 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
1935 | str_supported(tp_features.bay_status), |
1936 | str_supported(tp_features.bay_eject), | |
1937 | str_supported(tp_features.bay_status2), | |
1938 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 1939 | |
d8fd94d9 HMH |
1940 | return (tp_features.bay_status || tp_features.bay_eject || |
1941 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
1942 | } |
1943 | ||
56b6aeb0 HMH |
1944 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
1945 | { | |
8d376cd6 | 1946 | acpi_bus_generate_event(ibm->acpi->device, event, 0); |
56b6aeb0 HMH |
1947 | } |
1948 | ||
78f81cc4 BD |
1949 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
1950 | ||
1951 | static int bay_read(char *p) | |
1da177e4 LT |
1952 | { |
1953 | int len = 0; | |
78f81cc4 BD |
1954 | int occupied = bay_occupied(bay); |
1955 | int occupied2 = bay_occupied(bay2); | |
1956 | int eject, eject2; | |
1957 | ||
d8fd94d9 HMH |
1958 | len += sprintf(p + len, "status:\t\t%s\n", |
1959 | tp_features.bay_status ? | |
1960 | (occupied ? "occupied" : "unoccupied") : | |
1961 | "not supported"); | |
1962 | if (tp_features.bay_status2) | |
78f81cc4 BD |
1963 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
1964 | "occupied" : "unoccupied"); | |
1965 | ||
d8fd94d9 HMH |
1966 | eject = tp_features.bay_eject && occupied; |
1967 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
1968 | |
1969 | if (eject && eject2) | |
1970 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
1971 | else if (eject) | |
1da177e4 | 1972 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
1973 | else if (eject2) |
1974 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
1975 | |
1976 | return len; | |
1977 | } | |
1978 | ||
78f81cc4 | 1979 | static int bay_write(char *buf) |
1da177e4 LT |
1980 | { |
1981 | char *cmd; | |
1982 | ||
d8fd94d9 | 1983 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
1984 | return -ENODEV; |
1985 | ||
1da177e4 | 1986 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 1987 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
1988 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
1989 | return -EIO; | |
d8fd94d9 | 1990 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
1991 | strlencmp(cmd, "eject2") == 0) { |
1992 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
1993 | return -EIO; |
1994 | } else | |
1995 | return -EINVAL; | |
1996 | } | |
1997 | ||
1998 | return 0; | |
78f81cc4 | 1999 | } |
a5763f22 | 2000 | |
8d376cd6 HMH |
2001 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
2002 | .notify = bay_notify, | |
2003 | .handle = &bay_handle, | |
2004 | .type = ACPI_SYSTEM_NOTIFY, | |
2005 | }; | |
2006 | ||
a5763f22 HMH |
2007 | static struct ibm_struct bay_driver_data = { |
2008 | .name = "bay", | |
2009 | .read = bay_read, | |
2010 | .write = bay_write, | |
8d376cd6 | 2011 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
2012 | }; |
2013 | ||
85998248 | 2014 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 2015 | |
56b6aeb0 HMH |
2016 | /************************************************************************* |
2017 | * CMOS subdriver | |
2018 | */ | |
2019 | ||
b616004c HMH |
2020 | /* sysfs cmos_command -------------------------------------------------- */ |
2021 | static ssize_t cmos_command_store(struct device *dev, | |
2022 | struct device_attribute *attr, | |
2023 | const char *buf, size_t count) | |
2024 | { | |
2025 | unsigned long cmos_cmd; | |
2026 | int res; | |
2027 | ||
2028 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
2029 | return -EINVAL; | |
2030 | ||
2031 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
2032 | return (res)? res : count; | |
2033 | } | |
2034 | ||
2035 | static struct device_attribute dev_attr_cmos_command = | |
2036 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
2037 | ||
2038 | /* --------------------------------------------------------------------- */ | |
2039 | ||
a5763f22 | 2040 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 2041 | { |
b616004c HMH |
2042 | int res; |
2043 | ||
fe08bc4b HMH |
2044 | vdbg_printk(TPACPI_DBG_INIT, |
2045 | "initializing cmos commands subdriver\n"); | |
2046 | ||
8d376cd6 | 2047 | IBM_ACPIHANDLE_INIT(cmos); |
5fba344c | 2048 | |
fe08bc4b HMH |
2049 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
2050 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
2051 | |
2052 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
2053 | if (res) | |
2054 | return res; | |
2055 | ||
5fba344c HMH |
2056 | return (cmos_handle)? 0 : 1; |
2057 | } | |
2058 | ||
b616004c HMH |
2059 | static void cmos_exit(void) |
2060 | { | |
2061 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
2062 | } | |
2063 | ||
78f81cc4 | 2064 | static int cmos_read(char *p) |
1da177e4 LT |
2065 | { |
2066 | int len = 0; | |
2067 | ||
78f81cc4 BD |
2068 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2069 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
2070 | if (!cmos_handle) |
2071 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2072 | else { | |
2073 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 2074 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
2075 | } |
2076 | ||
2077 | return len; | |
2078 | } | |
2079 | ||
78f81cc4 | 2080 | static int cmos_write(char *buf) |
1da177e4 LT |
2081 | { |
2082 | char *cmd; | |
c9bea99c | 2083 | int cmos_cmd, res; |
1da177e4 LT |
2084 | |
2085 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
2086 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
2087 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
2088 | /* cmos_cmd set */ |
2089 | } else | |
2090 | return -EINVAL; | |
2091 | ||
c9bea99c HMH |
2092 | res = issue_thinkpad_cmos_command(cmos_cmd); |
2093 | if (res) | |
2094 | return res; | |
1da177e4 LT |
2095 | } |
2096 | ||
2097 | return 0; | |
78f81cc4 BD |
2098 | } |
2099 | ||
a5763f22 HMH |
2100 | static struct ibm_struct cmos_driver_data = { |
2101 | .name = "cmos", | |
2102 | .read = cmos_read, | |
2103 | .write = cmos_write, | |
b616004c | 2104 | .exit = cmos_exit, |
a5763f22 | 2105 | }; |
56b6aeb0 HMH |
2106 | |
2107 | /************************************************************************* | |
2108 | * LED subdriver | |
2109 | */ | |
2110 | ||
9a8e1738 | 2111 | static enum led_access_mode led_supported; |
78f81cc4 | 2112 | |
56b6aeb0 HMH |
2113 | IBM_HANDLE(led, ec, "SLED", /* 570 */ |
2114 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
2115 | "LED", /* all others */ | |
2116 | ); /* R30, R31 */ | |
2117 | ||
a5763f22 | 2118 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2119 | { |
fe08bc4b HMH |
2120 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
2121 | ||
8d376cd6 | 2122 | IBM_ACPIHANDLE_INIT(led); |
5fba344c | 2123 | |
78f81cc4 BD |
2124 | if (!led_handle) |
2125 | /* led not supported on R30, R31 */ | |
efa27145 | 2126 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
2127 | else if (strlencmp(led_path, "SLED") == 0) |
2128 | /* 570 */ | |
efa27145 | 2129 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
2130 | else if (strlencmp(led_path, "SYSL") == 0) |
2131 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 2132 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
2133 | else |
2134 | /* all others */ | |
efa27145 | 2135 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 2136 | |
fe08bc4b HMH |
2137 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
2138 | str_supported(led_supported), led_supported); | |
2139 | ||
5fba344c | 2140 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
2141 | } |
2142 | ||
2143 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
2144 | ||
2145 | static int led_read(char *p) | |
1da177e4 LT |
2146 | { |
2147 | int len = 0; | |
2148 | ||
78f81cc4 BD |
2149 | if (!led_supported) { |
2150 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2151 | return len; | |
2152 | } | |
2153 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2154 | ||
efa27145 | 2155 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2156 | /* 570 */ |
2157 | int i, status; | |
2158 | for (i = 0; i < 8; i++) { | |
2159 | if (!acpi_evalf(ec_handle, | |
2160 | &status, "GLED", "dd", 1 << i)) | |
2161 | return -EIO; | |
2162 | len += sprintf(p + len, "%d:\t\t%s\n", | |
2163 | i, led_status(status)); | |
2164 | } | |
2165 | } | |
2166 | ||
1da177e4 | 2167 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 2168 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
2169 | |
2170 | return len; | |
2171 | } | |
2172 | ||
78f81cc4 BD |
2173 | /* off, on, blink */ |
2174 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
2175 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
2176 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
2177 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
2178 | ||
78f81cc4 | 2179 | static int led_write(char *buf) |
1da177e4 LT |
2180 | { |
2181 | char *cmd; | |
78f81cc4 BD |
2182 | int led, ind, ret; |
2183 | ||
2184 | if (!led_supported) | |
2185 | return -ENODEV; | |
1da177e4 LT |
2186 | |
2187 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 2188 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
2189 | return -EINVAL; |
2190 | ||
78f81cc4 BD |
2191 | if (strstr(cmd, "off")) { |
2192 | ind = 0; | |
1da177e4 | 2193 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
2194 | ind = 1; |
2195 | } else if (strstr(cmd, "blink")) { | |
2196 | ind = 2; | |
1da177e4 LT |
2197 | } else |
2198 | return -EINVAL; | |
78f81cc4 | 2199 | |
efa27145 | 2200 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2201 | /* 570 */ |
2202 | led = 1 << led; | |
1da177e4 | 2203 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 2204 | led, led_sled_arg1[ind])) |
1da177e4 | 2205 | return -EIO; |
efa27145 | 2206 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
2207 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
2208 | led = 1 << led; | |
efa27145 | 2209 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
2210 | if (ret >= 0) |
2211 | ret = | |
efa27145 | 2212 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 2213 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
2214 | if (ret >= 0) |
2215 | ret = | |
efa27145 | 2216 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 2217 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
2218 | if (ret < 0) |
2219 | return ret; | |
2220 | } else { | |
2221 | /* all others */ | |
2222 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
2223 | led, led_led_arg1[ind])) | |
1da177e4 | 2224 | return -EIO; |
78f81cc4 BD |
2225 | } |
2226 | } | |
2227 | ||
2228 | return 0; | |
2229 | } | |
2230 | ||
a5763f22 HMH |
2231 | static struct ibm_struct led_driver_data = { |
2232 | .name = "led", | |
2233 | .read = led_read, | |
2234 | .write = led_write, | |
2235 | }; | |
2236 | ||
56b6aeb0 HMH |
2237 | /************************************************************************* |
2238 | * Beep subdriver | |
2239 | */ | |
2240 | ||
2241 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
2242 | ||
a5763f22 | 2243 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 2244 | { |
fe08bc4b HMH |
2245 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
2246 | ||
8d376cd6 | 2247 | IBM_ACPIHANDLE_INIT(beep); |
5fba344c | 2248 | |
fe08bc4b HMH |
2249 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
2250 | str_supported(beep_handle != NULL)); | |
2251 | ||
5fba344c HMH |
2252 | return (beep_handle)? 0 : 1; |
2253 | } | |
2254 | ||
78f81cc4 BD |
2255 | static int beep_read(char *p) |
2256 | { | |
2257 | int len = 0; | |
2258 | ||
2259 | if (!beep_handle) | |
2260 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2261 | else { | |
2262 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2263 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
2264 | } | |
2265 | ||
2266 | return len; | |
2267 | } | |
2268 | ||
2269 | static int beep_write(char *buf) | |
2270 | { | |
2271 | char *cmd; | |
2272 | int beep_cmd; | |
2273 | ||
2274 | if (!beep_handle) | |
2275 | return -ENODEV; | |
2276 | ||
2277 | while ((cmd = next_cmd(&buf))) { | |
2278 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
2279 | beep_cmd >= 0 && beep_cmd <= 17) { | |
2280 | /* beep_cmd set */ | |
2281 | } else | |
2282 | return -EINVAL; | |
2283 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
2284 | return -EIO; | |
2285 | } | |
2286 | ||
2287 | return 0; | |
2288 | } | |
2289 | ||
a5763f22 HMH |
2290 | static struct ibm_struct beep_driver_data = { |
2291 | .name = "beep", | |
2292 | .read = beep_read, | |
2293 | .write = beep_write, | |
2294 | }; | |
2295 | ||
56b6aeb0 HMH |
2296 | /************************************************************************* |
2297 | * Thermal subdriver | |
2298 | */ | |
78f81cc4 | 2299 | |
a26f878a | 2300 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 2301 | |
2c37aa4e HMH |
2302 | /* sysfs temp##_input -------------------------------------------------- */ |
2303 | ||
2304 | static ssize_t thermal_temp_input_show(struct device *dev, | |
2305 | struct device_attribute *attr, | |
2306 | char *buf) | |
2307 | { | |
2308 | struct sensor_device_attribute *sensor_attr = | |
2309 | to_sensor_dev_attr(attr); | |
2310 | int idx = sensor_attr->index; | |
2311 | s32 value; | |
2312 | int res; | |
2313 | ||
2314 | res = thermal_get_sensor(idx, &value); | |
2315 | if (res) | |
2316 | return res; | |
2317 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
2318 | return -ENXIO; | |
2319 | ||
2320 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
2321 | } | |
2322 | ||
2323 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
2324 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB) | |
2325 | ||
2326 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
2327 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
2328 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
2329 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
2330 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
2331 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
2332 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
2333 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
2334 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
2335 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
2336 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
2337 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
2338 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
2339 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
2340 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
2341 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
2342 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
2343 | }; | |
2344 | ||
2345 | #define THERMAL_ATTRS(X) \ | |
2346 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
2347 | ||
2348 | static struct attribute *thermal_temp_input_attr[] = { | |
2349 | THERMAL_ATTRS(8), | |
2350 | THERMAL_ATTRS(9), | |
2351 | THERMAL_ATTRS(10), | |
2352 | THERMAL_ATTRS(11), | |
2353 | THERMAL_ATTRS(12), | |
2354 | THERMAL_ATTRS(13), | |
2355 | THERMAL_ATTRS(14), | |
2356 | THERMAL_ATTRS(15), | |
2357 | THERMAL_ATTRS(0), | |
2358 | THERMAL_ATTRS(1), | |
2359 | THERMAL_ATTRS(2), | |
2360 | THERMAL_ATTRS(3), | |
2361 | THERMAL_ATTRS(4), | |
2362 | THERMAL_ATTRS(5), | |
2363 | THERMAL_ATTRS(6), | |
2364 | THERMAL_ATTRS(7), | |
2365 | NULL | |
2366 | }; | |
2367 | ||
2368 | static const struct attribute_group thermal_temp_input16_group = { | |
2369 | .attrs = thermal_temp_input_attr | |
2370 | }; | |
2371 | ||
2372 | static const struct attribute_group thermal_temp_input8_group = { | |
2373 | .attrs = &thermal_temp_input_attr[8] | |
2374 | }; | |
2375 | ||
2376 | #undef THERMAL_SENSOR_ATTR_TEMP | |
2377 | #undef THERMAL_ATTRS | |
2378 | ||
2379 | /* --------------------------------------------------------------------- */ | |
2380 | ||
a5763f22 | 2381 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2382 | { |
60eb0b35 HMH |
2383 | u8 t, ta1, ta2; |
2384 | int i; | |
5fba344c | 2385 | int acpi_tmp7; |
2c37aa4e | 2386 | int res; |
5fba344c | 2387 | |
fe08bc4b HMH |
2388 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
2389 | ||
5fba344c | 2390 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 HMH |
2391 | |
2392 | if (ibm_thinkpad_ec_found && experimental) { | |
2393 | /* | |
2394 | * Direct EC access mode: sensors at registers | |
2395 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
2396 | * non-implemented, thermal sensors return 0x80 when | |
2397 | * not available | |
2398 | */ | |
78f81cc4 | 2399 | |
60eb0b35 HMH |
2400 | ta1 = ta2 = 0; |
2401 | for (i = 0; i < 8; i++) { | |
04cc862c | 2402 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
2403 | ta1 |= t; |
2404 | } else { | |
2405 | ta1 = 0; | |
2406 | break; | |
2407 | } | |
04cc862c | 2408 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
2409 | ta2 |= t; |
2410 | } else { | |
2411 | ta1 = 0; | |
2412 | break; | |
2413 | } | |
2414 | } | |
2415 | if (ta1 == 0) { | |
2416 | /* This is sheer paranoia, but we handle it anyway */ | |
2417 | if (acpi_tmp7) { | |
2418 | printk(IBM_ERR | |
2419 | "ThinkPad ACPI EC access misbehaving, " | |
2420 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 2421 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 HMH |
2422 | } else { |
2423 | printk(IBM_ERR | |
2424 | "ThinkPad ACPI EC access misbehaving, " | |
2425 | "disabling thermal sensors access\n"); | |
efa27145 | 2426 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
2427 | } |
2428 | } else { | |
2429 | thermal_read_mode = | |
2430 | (ta2 != 0) ? | |
efa27145 | 2431 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
2432 | } |
2433 | } else if (acpi_tmp7) { | |
a26f878a HMH |
2434 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
2435 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2436 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
2437 | } else { |
2438 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 2439 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
2440 | } |
2441 | } else { | |
2442 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 2443 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 2444 | } |
78f81cc4 | 2445 | |
fe08bc4b HMH |
2446 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
2447 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
2448 | thermal_read_mode); | |
2449 | ||
2c37aa4e HMH |
2450 | switch(thermal_read_mode) { |
2451 | case TPACPI_THERMAL_TPEC_16: | |
2452 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2453 | &thermal_temp_input16_group); | |
2454 | if (res) | |
2455 | return res; | |
2456 | break; | |
2457 | case TPACPI_THERMAL_TPEC_8: | |
2458 | case TPACPI_THERMAL_ACPI_TMP07: | |
2459 | case TPACPI_THERMAL_ACPI_UPDT: | |
2460 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2461 | &thermal_temp_input8_group); | |
2462 | if (res) | |
2463 | return res; | |
2464 | break; | |
2465 | case TPACPI_THERMAL_NONE: | |
2466 | default: | |
2467 | return 1; | |
2468 | } | |
2469 | ||
2470 | return 0; | |
2471 | } | |
2472 | ||
2473 | static void thermal_exit(void) | |
2474 | { | |
2475 | switch(thermal_read_mode) { | |
2476 | case TPACPI_THERMAL_TPEC_16: | |
2477 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2478 | &thermal_temp_input16_group); | |
2479 | break; | |
2480 | case TPACPI_THERMAL_TPEC_8: | |
2481 | case TPACPI_THERMAL_ACPI_TMP07: | |
2482 | case TPACPI_THERMAL_ACPI_UPDT: | |
2483 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2484 | &thermal_temp_input16_group); | |
2485 | break; | |
2486 | case TPACPI_THERMAL_NONE: | |
2487 | default: | |
2488 | break; | |
2489 | } | |
78f81cc4 BD |
2490 | } |
2491 | ||
04cc862c HMH |
2492 | /* idx is zero-based */ |
2493 | static int thermal_get_sensor(int idx, s32 *value) | |
78f81cc4 | 2494 | { |
04cc862c | 2495 | int t; |
60eb0b35 | 2496 | s8 tmp; |
04cc862c | 2497 | char tmpi[5]; |
78f81cc4 | 2498 | |
04cc862c | 2499 | t = TP_EC_THERMAL_TMP0; |
78f81cc4 | 2500 | |
a26f878a | 2501 | switch (thermal_read_mode) { |
efa27145 HMH |
2502 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 |
2503 | case TPACPI_THERMAL_TPEC_16: | |
04cc862c HMH |
2504 | if (idx >= 8 && idx <= 15) { |
2505 | t = TP_EC_THERMAL_TMP8; | |
2506 | idx -= 8; | |
60eb0b35 HMH |
2507 | } |
2508 | /* fallthrough */ | |
2509 | #endif | |
efa27145 | 2510 | case TPACPI_THERMAL_TPEC_8: |
04cc862c HMH |
2511 | if (idx <= 7) { |
2512 | if (!acpi_ec_read(t + idx, &tmp)) | |
78f81cc4 | 2513 | return -EIO; |
04cc862c HMH |
2514 | *value = tmp * 1000; |
2515 | return 0; | |
60eb0b35 | 2516 | } |
04cc862c | 2517 | break; |
78f81cc4 | 2518 | |
efa27145 | 2519 | case TPACPI_THERMAL_ACPI_UPDT: |
04cc862c HMH |
2520 | if (idx <= 7) { |
2521 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
2522 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
2523 | return -EIO; | |
78f81cc4 BD |
2524 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
2525 | return -EIO; | |
04cc862c HMH |
2526 | *value = (t - 2732) * 100; |
2527 | return 0; | |
78f81cc4 | 2528 | } |
04cc862c | 2529 | break; |
78f81cc4 | 2530 | |
efa27145 | 2531 | case TPACPI_THERMAL_ACPI_TMP07: |
04cc862c HMH |
2532 | if (idx <= 7) { |
2533 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
78f81cc4 BD |
2534 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
2535 | return -EIO; | |
04cc862c HMH |
2536 | *value = t * 1000; |
2537 | return 0; | |
78f81cc4 | 2538 | } |
04cc862c | 2539 | break; |
78f81cc4 | 2540 | |
efa27145 | 2541 | case TPACPI_THERMAL_NONE: |
a26f878a | 2542 | default: |
04cc862c HMH |
2543 | return -ENOSYS; |
2544 | } | |
2545 | ||
2546 | return -EINVAL; | |
2547 | } | |
2548 | ||
2549 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
2550 | { | |
2551 | int res, i; | |
2552 | int n; | |
2553 | ||
2554 | n = 8; | |
2555 | i = 0; | |
2556 | ||
2557 | if (!s) | |
2558 | return -EINVAL; | |
2559 | ||
2560 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
2561 | n = 16; | |
2562 | ||
2563 | for(i = 0 ; i < n; i++) { | |
2564 | res = thermal_get_sensor(i, &s->temp[i]); | |
2565 | if (res) | |
2566 | return res; | |
78f81cc4 | 2567 | } |
04cc862c HMH |
2568 | |
2569 | return n; | |
a26f878a HMH |
2570 | } |
2571 | ||
2572 | static int thermal_read(char *p) | |
2573 | { | |
2574 | int len = 0; | |
2575 | int n, i; | |
2576 | struct ibm_thermal_sensors_struct t; | |
2577 | ||
2578 | n = thermal_get_sensors(&t); | |
2579 | if (unlikely(n < 0)) | |
2580 | return n; | |
2581 | ||
2582 | len += sprintf(p + len, "temperatures:\t"); | |
2583 | ||
2584 | if (n > 0) { | |
2585 | for (i = 0; i < (n - 1); i++) | |
2586 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
2587 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
2588 | } else | |
2589 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
2590 | |
2591 | return len; | |
2592 | } | |
2593 | ||
a5763f22 HMH |
2594 | static struct ibm_struct thermal_driver_data = { |
2595 | .name = "thermal", | |
2596 | .read = thermal_read, | |
2c37aa4e | 2597 | .exit = thermal_exit, |
a5763f22 HMH |
2598 | }; |
2599 | ||
56b6aeb0 HMH |
2600 | /************************************************************************* |
2601 | * EC Dump subdriver | |
2602 | */ | |
2603 | ||
78f81cc4 BD |
2604 | static u8 ecdump_regs[256]; |
2605 | ||
2606 | static int ecdump_read(char *p) | |
2607 | { | |
2608 | int len = 0; | |
2609 | int i, j; | |
2610 | u8 v; | |
2611 | ||
2612 | len += sprintf(p + len, "EC " | |
2613 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
2614 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
2615 | for (i = 0; i < 256; i += 16) { | |
2616 | len += sprintf(p + len, "EC 0x%02x:", i); | |
2617 | for (j = 0; j < 16; j++) { | |
2618 | if (!acpi_ec_read(i + j, &v)) | |
2619 | break; | |
2620 | if (v != ecdump_regs[i + j]) | |
2621 | len += sprintf(p + len, " *%02x", v); | |
2622 | else | |
2623 | len += sprintf(p + len, " %02x", v); | |
2624 | ecdump_regs[i + j] = v; | |
2625 | } | |
2626 | len += sprintf(p + len, "\n"); | |
2627 | if (j != 16) | |
2628 | break; | |
2629 | } | |
2630 | ||
2631 | /* These are way too dangerous to advertise openly... */ | |
2632 | #if 0 | |
2633 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
2634 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
2635 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
2636 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
2637 | #endif | |
2638 | return len; | |
2639 | } | |
2640 | ||
2641 | static int ecdump_write(char *buf) | |
2642 | { | |
2643 | char *cmd; | |
2644 | int i, v; | |
2645 | ||
2646 | while ((cmd = next_cmd(&buf))) { | |
2647 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
2648 | /* i and v set */ | |
2649 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
2650 | /* i and v set */ | |
2651 | } else | |
2652 | return -EINVAL; | |
2653 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
2654 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
2655 | return -EIO; |
2656 | } else | |
2657 | return -EINVAL; | |
2658 | } | |
2659 | ||
2660 | return 0; | |
78f81cc4 BD |
2661 | } |
2662 | ||
a5763f22 HMH |
2663 | static struct ibm_struct ecdump_driver_data = { |
2664 | .name = "ecdump", | |
2665 | .read = ecdump_read, | |
2666 | .write = ecdump_write, | |
92641177 | 2667 | .flags.experimental = 1, |
a5763f22 HMH |
2668 | }; |
2669 | ||
56b6aeb0 HMH |
2670 | /************************************************************************* |
2671 | * Backlight/brightness subdriver | |
2672 | */ | |
2673 | ||
2674 | static struct backlight_device *ibm_backlight_device = NULL; | |
2675 | ||
2676 | static struct backlight_ops ibm_backlight_data = { | |
2677 | .get_brightness = brightness_get, | |
2678 | .update_status = brightness_update_status, | |
2679 | }; | |
2680 | ||
a5763f22 | 2681 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
2682 | { |
2683 | int b; | |
2684 | ||
fe08bc4b HMH |
2685 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
2686 | ||
56b6aeb0 HMH |
2687 | b = brightness_get(NULL); |
2688 | if (b < 0) | |
2689 | return b; | |
2690 | ||
7d5a015e HMH |
2691 | ibm_backlight_device = backlight_device_register( |
2692 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
2693 | &ibm_backlight_data); | |
56b6aeb0 HMH |
2694 | if (IS_ERR(ibm_backlight_device)) { |
2695 | printk(IBM_ERR "Could not register backlight device\n"); | |
2696 | return PTR_ERR(ibm_backlight_device); | |
2697 | } | |
fe08bc4b | 2698 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 HMH |
2699 | |
2700 | ibm_backlight_device->props.max_brightness = 7; | |
2701 | ibm_backlight_device->props.brightness = b; | |
2702 | backlight_update_status(ibm_backlight_device); | |
2703 | ||
2704 | return 0; | |
2705 | } | |
2706 | ||
2707 | static void brightness_exit(void) | |
2708 | { | |
2709 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
2710 | vdbg_printk(TPACPI_DBG_EXIT, |
2711 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
2712 | backlight_device_unregister(ibm_backlight_device); |
2713 | ibm_backlight_device = NULL; | |
2714 | } | |
2715 | } | |
2716 | ||
2717 | static int brightness_update_status(struct backlight_device *bd) | |
2718 | { | |
2719 | return brightness_set( | |
2720 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
2721 | bd->props.power == FB_BLANK_UNBLANK) ? | |
2722 | bd->props.brightness : 0); | |
2723 | } | |
2724 | ||
8acb0250 HM |
2725 | static int brightness_get(struct backlight_device *bd) |
2726 | { | |
8d297264 HMH |
2727 | u8 level; |
2728 | if (!acpi_ec_read(brightness_offset, &level)) | |
2729 | return -EIO; | |
8acb0250 | 2730 | |
8d297264 | 2731 | level &= 0x7; |
fb87a811 | 2732 | |
8d297264 | 2733 | return level; |
8acb0250 HM |
2734 | } |
2735 | ||
8acb0250 | 2736 | static int brightness_set(int value) |
1da177e4 | 2737 | { |
78f81cc4 | 2738 | int cmos_cmd, inc, i; |
8acb0250 HM |
2739 | int current_value = brightness_get(NULL); |
2740 | ||
2741 | value &= 7; | |
2742 | ||
56b6aeb0 | 2743 | cmos_cmd = value > current_value ? TP_CMOS_BRIGHTNESS_UP : TP_CMOS_BRIGHTNESS_DOWN; |
8acb0250 HM |
2744 | inc = value > current_value ? 1 : -1; |
2745 | for (i = current_value; i != value; i += inc) { | |
c9bea99c | 2746 | if (issue_thinkpad_cmos_command(cmos_cmd)) |
8acb0250 HM |
2747 | return -EIO; |
2748 | if (!acpi_ec_write(brightness_offset, i + inc)) | |
2749 | return -EIO; | |
2750 | } | |
2751 | ||
2752 | return 0; | |
2753 | } | |
2754 | ||
56b6aeb0 HMH |
2755 | static int brightness_read(char *p) |
2756 | { | |
2757 | int len = 0; | |
2758 | int level; | |
2759 | ||
2760 | if ((level = brightness_get(NULL)) < 0) { | |
2761 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
2762 | } else { | |
2763 | len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); | |
2764 | len += sprintf(p + len, "commands:\tup, down\n"); | |
2765 | len += sprintf(p + len, "commands:\tlevel <level>" | |
2766 | " (<level> is 0-7)\n"); | |
2767 | } | |
2768 | ||
2769 | return len; | |
2770 | } | |
2771 | ||
8acb0250 HM |
2772 | static int brightness_write(char *buf) |
2773 | { | |
2774 | int level; | |
78f81cc4 | 2775 | int new_level; |
1da177e4 | 2776 | char *cmd; |
1da177e4 LT |
2777 | |
2778 | while ((cmd = next_cmd(&buf))) { | |
8acb0250 HM |
2779 | if ((level = brightness_get(NULL)) < 0) |
2780 | return level; | |
78f81cc4 BD |
2781 | level &= 7; |
2782 | ||
2783 | if (strlencmp(cmd, "up") == 0) { | |
2784 | new_level = level == 7 ? 7 : level + 1; | |
2785 | } else if (strlencmp(cmd, "down") == 0) { | |
2786 | new_level = level == 0 ? 0 : level - 1; | |
2787 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
2788 | new_level >= 0 && new_level <= 7) { | |
2789 | /* new_level set */ | |
2790 | } else | |
2791 | return -EINVAL; | |
2792 | ||
8acb0250 | 2793 | brightness_set(new_level); |
78f81cc4 BD |
2794 | } |
2795 | ||
2796 | return 0; | |
2797 | } | |
2798 | ||
a5763f22 HMH |
2799 | static struct ibm_struct brightness_driver_data = { |
2800 | .name = "brightness", | |
2801 | .read = brightness_read, | |
2802 | .write = brightness_write, | |
2803 | .exit = brightness_exit, | |
2804 | }; | |
2805 | ||
56b6aeb0 HMH |
2806 | /************************************************************************* |
2807 | * Volume subdriver | |
2808 | */ | |
fb87a811 | 2809 | |
78f81cc4 BD |
2810 | static int volume_read(char *p) |
2811 | { | |
2812 | int len = 0; | |
2813 | u8 level; | |
2814 | ||
2815 | if (!acpi_ec_read(volume_offset, &level)) { | |
2816 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
2817 | } else { | |
2818 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
2819 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
2820 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
2821 | len += sprintf(p + len, "commands:\tlevel <level>" | |
2822 | " (<level> is 0-15)\n"); | |
2823 | } | |
2824 | ||
2825 | return len; | |
2826 | } | |
2827 | ||
78f81cc4 BD |
2828 | static int volume_write(char *buf) |
2829 | { | |
2830 | int cmos_cmd, inc, i; | |
2831 | u8 level, mute; | |
2832 | int new_level, new_mute; | |
2833 | char *cmd; | |
2834 | ||
2835 | while ((cmd = next_cmd(&buf))) { | |
2836 | if (!acpi_ec_read(volume_offset, &level)) | |
2837 | return -EIO; | |
2838 | new_mute = mute = level & 0x40; | |
2839 | new_level = level = level & 0xf; | |
2840 | ||
2841 | if (strlencmp(cmd, "up") == 0) { | |
2842 | if (mute) | |
2843 | new_mute = 0; | |
2844 | else | |
2845 | new_level = level == 15 ? 15 : level + 1; | |
2846 | } else if (strlencmp(cmd, "down") == 0) { | |
2847 | if (mute) | |
2848 | new_mute = 0; | |
2849 | else | |
2850 | new_level = level == 0 ? 0 : level - 1; | |
2851 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
2852 | new_level >= 0 && new_level <= 15) { | |
2853 | /* new_level set */ | |
2854 | } else if (strlencmp(cmd, "mute") == 0) { | |
2855 | new_mute = 0x40; | |
1da177e4 LT |
2856 | } else |
2857 | return -EINVAL; | |
2858 | ||
78f81cc4 | 2859 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 2860 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
2861 | inc = new_level > level ? 1 : -1; |
2862 | ||
c9bea99c | 2863 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
2864 | !acpi_ec_write(volume_offset, level))) |
2865 | return -EIO; | |
2866 | ||
2867 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 2868 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
2869 | !acpi_ec_write(volume_offset, i + inc)) |
2870 | return -EIO; | |
2871 | ||
c9bea99c | 2872 | if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
2873 | !acpi_ec_write(volume_offset, |
2874 | new_level + mute))) | |
2875 | return -EIO; | |
2876 | } | |
2877 | ||
2878 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 2879 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 | 2880 | |
c9bea99c | 2881 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
2882 | !acpi_ec_write(volume_offset, level + new_mute)) |
2883 | return -EIO; | |
2884 | } | |
2885 | } | |
2886 | ||
2887 | return 0; | |
2888 | } | |
2889 | ||
a5763f22 HMH |
2890 | static struct ibm_struct volume_driver_data = { |
2891 | .name = "volume", | |
2892 | .read = volume_read, | |
2893 | .write = volume_write, | |
2894 | }; | |
56b6aeb0 HMH |
2895 | |
2896 | /************************************************************************* | |
2897 | * Fan subdriver | |
2898 | */ | |
2899 | ||
2900 | /* | |
2901 | * FAN ACCESS MODES | |
2902 | * | |
efa27145 | 2903 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
2904 | * ACPI GFAN method: returns fan level |
2905 | * | |
efa27145 | 2906 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 2907 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 2908 | * |
efa27145 | 2909 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
2910 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
2911 | * | |
f51d1a39 HMH |
2912 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
2913 | * it for writing. | |
56b6aeb0 | 2914 | * |
efa27145 | 2915 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
2916 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
2917 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
2918 | * |
2919 | * Fan speed changes of any sort (including those caused by the | |
2920 | * disengaged mode) are usually done slowly by the firmware as the | |
2921 | * maximum ammount of fan duty cycle change per second seems to be | |
2922 | * limited. | |
2923 | * | |
2924 | * Reading is not available if GFAN exists. | |
2925 | * Writing is not available if SFAN exists. | |
2926 | * | |
2927 | * Bits | |
2928 | * 7 automatic mode engaged; | |
2929 | * (default operation mode of the ThinkPad) | |
2930 | * fan level is ignored in this mode. | |
f51d1a39 | 2931 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 2932 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
2933 | * the tachometer while the fan controller ramps up |
2934 | * the speed (which can take up to a few *minutes*). | |
2935 | * Speeds up fan to 100% duty-cycle, which is far above | |
2936 | * the standard RPM levels. It is not impossible that | |
2937 | * it could cause hardware damage. | |
56b6aeb0 HMH |
2938 | * 5-3 unused in some models. Extra bits for fan level |
2939 | * in others, but still useless as all values above | |
2940 | * 7 map to the same speed as level 7 in these models. | |
2941 | * 2-0 fan level (0..7 usually) | |
2942 | * 0x00 = stop | |
2943 | * 0x07 = max (set when temperatures critical) | |
2944 | * Some ThinkPads may have other levels, see | |
efa27145 | 2945 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
2946 | * |
2947 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
2948 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
2949 | * does so, its initial value is meaningless (0x07). | |
2950 | * | |
2951 | * For firmware bugs, refer to: | |
2952 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
2953 | * | |
2954 | * ---- | |
2955 | * | |
2956 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
2957 | * Main fan tachometer reading (in RPM) | |
2958 | * | |
2959 | * This register is present on all ThinkPads with a new-style EC, and | |
2960 | * it is known not to be present on the A21m/e, and T22, as there is | |
2961 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
2962 | * ThinkPads from this same time period (and earlier) probably lack the | |
2963 | * tachometer as well. | |
2964 | * | |
2965 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
2966 | * was never fixed by IBM to report the EC firmware version string | |
2967 | * probably support the tachometer (like the early X models), so | |
2968 | * detecting it is quite hard. We need more data to know for sure. | |
2969 | * | |
2970 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
2971 | * might result. | |
2972 | * | |
f51d1a39 HMH |
2973 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
2974 | * mode. | |
56b6aeb0 HMH |
2975 | * |
2976 | * For firmware bugs, refer to: | |
2977 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
2978 | * | |
efa27145 | 2979 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
2980 | * ThinkPad X31, X40, X41. Not available in the X60. |
2981 | * | |
2982 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
2983 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
2984 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
2985 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
2986 | * | |
2987 | * The speeds are stored on handles | |
2988 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
2989 | * | |
2990 | * There are three default speed sets, acessible as handles: | |
2991 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
2992 | * | |
2993 | * ACPI DSDT switches which set is in use depending on various | |
2994 | * factors. | |
2995 | * | |
efa27145 | 2996 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
2997 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
2998 | * but the ACPI tables just mention level 7. | |
2999 | */ | |
3000 | ||
69ba91cb HMH |
3001 | static enum fan_status_access_mode fan_status_access_mode; |
3002 | static enum fan_control_access_mode fan_control_access_mode; | |
3003 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 3004 | |
778b4d74 | 3005 | static u8 fan_control_initial_status; |
fe98a52c | 3006 | static u8 fan_control_desired_level; |
778b4d74 | 3007 | |
25c68a33 | 3008 | static void fan_watchdog_fire(struct work_struct *ignored); |
16663a87 | 3009 | static int fan_watchdog_maxinterval; |
25c68a33 | 3010 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 3011 | |
56b6aeb0 HMH |
3012 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
3013 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
3014 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
3015 | ); /* all others */ | |
3016 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
3017 | "JFNS", /* 770x-JL */ | |
3018 | ); /* all others */ | |
3019 | ||
fe98a52c HMH |
3020 | /* |
3021 | * SYSFS fan layout: hwmon compatible (device) | |
3022 | * | |
3023 | * pwm*_enable: | |
3024 | * 0: "disengaged" mode | |
3025 | * 1: manual mode | |
3026 | * 2: native EC "auto" mode (recommended, hardware default) | |
3027 | * | |
3028 | * pwm*: set speed in manual mode, ignored otherwise. | |
3029 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
3030 | * interpolation. | |
3031 | * | |
3032 | * fan*_input: tachometer reading, RPM | |
3033 | * | |
3034 | * | |
3035 | * SYSFS fan layout: extensions | |
3036 | * | |
3037 | * fan_watchdog (driver): | |
3038 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
3039 | */ | |
3040 | ||
3041 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
3042 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
3043 | struct device_attribute *attr, | |
3044 | char *buf) | |
3045 | { | |
3046 | int res, mode; | |
3047 | u8 status; | |
3048 | ||
3049 | res = fan_get_status_safe(&status); | |
3050 | if (res) | |
3051 | return res; | |
3052 | ||
3053 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
3054 | if (status != fan_control_initial_status) { | |
3055 | tp_features.fan_ctrl_status_undef = 0; | |
3056 | } else { | |
3057 | /* Return most likely status. In fact, it | |
3058 | * might be the only possible status */ | |
3059 | status = TP_EC_FAN_AUTO; | |
3060 | } | |
3061 | } | |
3062 | ||
3063 | if (status & TP_EC_FAN_FULLSPEED) { | |
3064 | mode = 0; | |
3065 | } else if (status & TP_EC_FAN_AUTO) { | |
3066 | mode = 2; | |
3067 | } else | |
3068 | mode = 1; | |
3069 | ||
3070 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
3071 | } | |
3072 | ||
3073 | static ssize_t fan_pwm1_enable_store(struct device *dev, | |
3074 | struct device_attribute *attr, | |
3075 | const char *buf, size_t count) | |
3076 | { | |
3077 | unsigned long t; | |
3078 | int res, level; | |
3079 | ||
3080 | if (parse_strtoul(buf, 2, &t)) | |
3081 | return -EINVAL; | |
3082 | ||
3083 | switch (t) { | |
3084 | case 0: | |
3085 | level = TP_EC_FAN_FULLSPEED; | |
3086 | break; | |
3087 | case 1: | |
3088 | level = TPACPI_FAN_LAST_LEVEL; | |
3089 | break; | |
3090 | case 2: | |
3091 | level = TP_EC_FAN_AUTO; | |
3092 | break; | |
3093 | case 3: | |
3094 | /* reserved for software-controlled auto mode */ | |
3095 | return -ENOSYS; | |
3096 | default: | |
3097 | return -EINVAL; | |
3098 | } | |
3099 | ||
3100 | res = fan_set_level_safe(level); | |
c573ddb9 HMH |
3101 | if (res == -ENXIO) |
3102 | return -EINVAL; | |
3103 | else if (res < 0) | |
fe98a52c HMH |
3104 | return res; |
3105 | ||
3106 | fan_watchdog_reset(); | |
3107 | ||
3108 | return count; | |
3109 | } | |
3110 | ||
3111 | static struct device_attribute dev_attr_fan_pwm1_enable = | |
3112 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
3113 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
3114 | ||
3115 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
3116 | static ssize_t fan_pwm1_show(struct device *dev, | |
3117 | struct device_attribute *attr, | |
3118 | char *buf) | |
3119 | { | |
3120 | int res; | |
3121 | u8 status; | |
3122 | ||
3123 | res = fan_get_status_safe(&status); | |
3124 | if (res) | |
3125 | return res; | |
3126 | ||
3127 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
3128 | if (status != fan_control_initial_status) { | |
3129 | tp_features.fan_ctrl_status_undef = 0; | |
3130 | } else { | |
3131 | status = TP_EC_FAN_AUTO; | |
3132 | } | |
3133 | } | |
3134 | ||
3135 | if ((status & | |
3136 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
3137 | status = fan_control_desired_level; | |
3138 | ||
3139 | if (status > 7) | |
3140 | status = 7; | |
3141 | ||
3142 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); | |
3143 | } | |
3144 | ||
3145 | static ssize_t fan_pwm1_store(struct device *dev, | |
3146 | struct device_attribute *attr, | |
3147 | const char *buf, size_t count) | |
3148 | { | |
3149 | unsigned long s; | |
3150 | int rc; | |
3151 | u8 status, newlevel; | |
3152 | ||
3153 | if (parse_strtoul(buf, 255, &s)) | |
3154 | return -EINVAL; | |
3155 | ||
3156 | /* scale down from 0-255 to 0-7 */ | |
3157 | newlevel = (s >> 5) & 0x07; | |
3158 | ||
3159 | rc = mutex_lock_interruptible(&fan_mutex); | |
3160 | if (rc < 0) | |
3161 | return rc; | |
3162 | ||
3163 | rc = fan_get_status(&status); | |
3164 | if (!rc && (status & | |
3165 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
3166 | rc = fan_set_level(newlevel); | |
c573ddb9 HMH |
3167 | if (rc == -ENXIO) |
3168 | rc = -EINVAL; | |
3169 | else if (!rc) { | |
fe98a52c | 3170 | fan_update_desired_level(newlevel); |
ca4ac2f4 HMH |
3171 | fan_watchdog_reset(); |
3172 | } | |
fe98a52c HMH |
3173 | } |
3174 | ||
3175 | mutex_unlock(&fan_mutex); | |
3176 | return (rc)? rc : count; | |
3177 | } | |
3178 | ||
3179 | static struct device_attribute dev_attr_fan_pwm1 = | |
3180 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
3181 | fan_pwm1_show, fan_pwm1_store); | |
3182 | ||
3183 | /* sysfs fan fan1_input ------------------------------------------------ */ | |
3184 | static ssize_t fan_fan1_input_show(struct device *dev, | |
3185 | struct device_attribute *attr, | |
3186 | char *buf) | |
3187 | { | |
3188 | int res; | |
3189 | unsigned int speed; | |
3190 | ||
3191 | res = fan_get_speed(&speed); | |
3192 | if (res < 0) | |
3193 | return res; | |
3194 | ||
3195 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
3196 | } | |
3197 | ||
3198 | static struct device_attribute dev_attr_fan_fan1_input = | |
3199 | __ATTR(fan1_input, S_IRUGO, | |
3200 | fan_fan1_input_show, NULL); | |
3201 | ||
3202 | /* sysfs fan fan_watchdog (driver) ------------------------------------- */ | |
3203 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
3204 | char *buf) | |
3205 | { | |
3206 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
3207 | } | |
3208 | ||
3209 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, | |
3210 | const char *buf, size_t count) | |
3211 | { | |
3212 | unsigned long t; | |
3213 | ||
3214 | if (parse_strtoul(buf, 120, &t)) | |
3215 | return -EINVAL; | |
3216 | ||
ecf2a80a HMH |
3217 | if (!fan_control_allowed) |
3218 | return -EPERM; | |
3219 | ||
fe98a52c HMH |
3220 | fan_watchdog_maxinterval = t; |
3221 | fan_watchdog_reset(); | |
3222 | ||
3223 | return count; | |
3224 | } | |
3225 | ||
3226 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
3227 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
3228 | ||
3229 | /* --------------------------------------------------------------------- */ | |
3230 | static struct attribute *fan_attributes[] = { | |
3231 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
3232 | &dev_attr_fan_fan1_input.attr, | |
3233 | NULL | |
3234 | }; | |
3235 | ||
3236 | static const struct attribute_group fan_attr_group = { | |
3237 | .attrs = fan_attributes, | |
3238 | }; | |
3239 | ||
a5763f22 | 3240 | static int __init fan_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3241 | { |
fe98a52c HMH |
3242 | int rc; |
3243 | ||
fe08bc4b HMH |
3244 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); |
3245 | ||
40ca9fdf | 3246 | mutex_init(&fan_mutex); |
efa27145 HMH |
3247 | fan_status_access_mode = TPACPI_FAN_NONE; |
3248 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
69ba91cb | 3249 | fan_control_commands = 0; |
16663a87 | 3250 | fan_watchdog_maxinterval = 0; |
d8fd94d9 | 3251 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 3252 | fan_control_desired_level = 7; |
78f81cc4 | 3253 | |
8d376cd6 HMH |
3254 | IBM_ACPIHANDLE_INIT(fans); |
3255 | IBM_ACPIHANDLE_INIT(gfan); | |
3256 | IBM_ACPIHANDLE_INIT(sfan); | |
5fba344c | 3257 | |
78f81cc4 BD |
3258 | if (gfan_handle) { |
3259 | /* 570, 600e/x, 770e, 770x */ | |
efa27145 | 3260 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; |
69ba91cb HMH |
3261 | } else { |
3262 | /* all other ThinkPads: note that even old-style | |
3263 | * ThinkPad ECs supports the fan control register */ | |
778b4d74 HMH |
3264 | if (likely(acpi_ec_read(fan_status_offset, |
3265 | &fan_control_initial_status))) { | |
efa27145 | 3266 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; |
778b4d74 HMH |
3267 | |
3268 | /* In some ThinkPads, neither the EC nor the ACPI | |
3269 | * DSDT initialize the fan status, and it ends up | |
3270 | * being set to 0x07 when it *could* be either | |
3271 | * 0x07 or 0x80. | |
3272 | * | |
3273 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
3274 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
3275 | * to be buggy. */ | |
3276 | if (fan_control_initial_status == 0x07 && | |
3277 | ibm_thinkpad_ec_found && | |
3278 | ((ibm_thinkpad_ec_found[0] == '1' && | |
3279 | ibm_thinkpad_ec_found[1] == 'Y') || | |
3280 | (ibm_thinkpad_ec_found[0] == '7' && | |
3281 | (ibm_thinkpad_ec_found[1] == '6' || | |
3282 | ibm_thinkpad_ec_found[1] == '8' || | |
3283 | ibm_thinkpad_ec_found[1] == '0')) | |
3284 | )) { | |
3285 | printk(IBM_NOTICE | |
3286 | "fan_init: initial fan status is " | |
3287 | "unknown, assuming it is in auto " | |
3288 | "mode\n"); | |
d8fd94d9 | 3289 | tp_features.fan_ctrl_status_undef = 1; |
778b4d74 | 3290 | } |
69ba91cb HMH |
3291 | } else { |
3292 | printk(IBM_ERR | |
3293 | "ThinkPad ACPI EC access misbehaving, " | |
3294 | "fan status and control unavailable\n"); | |
5fba344c | 3295 | return 1; |
69ba91cb HMH |
3296 | } |
3297 | } | |
78f81cc4 | 3298 | |
69ba91cb HMH |
3299 | if (sfan_handle) { |
3300 | /* 570, 770x-JL */ | |
efa27145 | 3301 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; |
1c6a334e | 3302 | fan_control_commands |= |
efa27145 | 3303 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; |
78f81cc4 | 3304 | } else { |
69ba91cb HMH |
3305 | if (!gfan_handle) { |
3306 | /* gfan without sfan means no fan control */ | |
3307 | /* all other models implement TP EC 0x2f control */ | |
3308 | ||
3309 | if (fans_handle) { | |
a8b7a662 | 3310 | /* X31, X40, X41 */ |
69ba91cb | 3311 | fan_control_access_mode = |
efa27145 | 3312 | TPACPI_FAN_WR_ACPI_FANS; |
69ba91cb | 3313 | fan_control_commands |= |
efa27145 HMH |
3314 | TPACPI_FAN_CMD_SPEED | |
3315 | TPACPI_FAN_CMD_LEVEL | | |
3316 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb | 3317 | } else { |
efa27145 | 3318 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; |
a12095c2 | 3319 | fan_control_commands |= |
efa27145 HMH |
3320 | TPACPI_FAN_CMD_LEVEL | |
3321 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
3322 | } |
3323 | } | |
3324 | } | |
3325 | ||
fe08bc4b HMH |
3326 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
3327 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
3328 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
3329 | fan_status_access_mode, fan_control_access_mode); | |
3330 | ||
ecf2a80a HMH |
3331 | /* fan control master switch */ |
3332 | if (!fan_control_allowed) { | |
3333 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
3334 | fan_control_commands = 0; | |
3335 | dbg_printk(TPACPI_DBG_INIT, | |
3336 | "fan control features disabled by parameter\n"); | |
3337 | } | |
3338 | ||
fe98a52c HMH |
3339 | /* update fan_control_desired_level */ |
3340 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
3341 | fan_get_status_safe(NULL); | |
3342 | ||
3343 | if (fan_status_access_mode != TPACPI_FAN_NONE || | |
3344 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
3345 | rc = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
3346 | &fan_attr_group); | |
3347 | if (!(rc < 0)) | |
3348 | rc = driver_create_file(&tpacpi_pdriver.driver, | |
3349 | &driver_attr_fan_watchdog); | |
3350 | if (rc < 0) | |
3351 | return rc; | |
3352 | return 0; | |
3353 | } else | |
3354 | return 1; | |
3355 | } | |
3356 | ||
3357 | /* | |
3358 | * Call with fan_mutex held | |
3359 | */ | |
3360 | static void fan_update_desired_level(u8 status) | |
3361 | { | |
3362 | if ((status & | |
3363 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
3364 | if (status > 7) | |
3365 | fan_control_desired_level = 7; | |
3366 | else | |
3367 | fan_control_desired_level = status; | |
3368 | } | |
69ba91cb | 3369 | } |
78f81cc4 | 3370 | |
c52f0aa5 | 3371 | static int fan_get_status(u8 *status) |
78f81cc4 | 3372 | { |
c52f0aa5 | 3373 | u8 s; |
78f81cc4 | 3374 | |
a8b7a662 | 3375 | /* TODO: |
efa27145 | 3376 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ |
a8b7a662 | 3377 | |
3ef8a609 | 3378 | switch (fan_status_access_mode) { |
efa27145 | 3379 | case TPACPI_FAN_RD_ACPI_GFAN: |
78f81cc4 | 3380 | /* 570, 600e/x, 770e, 770x */ |
c52f0aa5 HMH |
3381 | |
3382 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) | |
1da177e4 | 3383 | return -EIO; |
78f81cc4 | 3384 | |
c52f0aa5 HMH |
3385 | if (likely(status)) |
3386 | *status = s & 0x07; | |
3ef8a609 HMH |
3387 | |
3388 | break; | |
3389 | ||
efa27145 | 3390 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 3391 | /* all except 570, 600e/x, 770e, 770x */ |
c52f0aa5 | 3392 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
3ef8a609 | 3393 | return -EIO; |
78f81cc4 | 3394 | |
c52f0aa5 HMH |
3395 | if (likely(status)) |
3396 | *status = s; | |
3397 | ||
3398 | break; | |
3399 | ||
3400 | default: | |
3401 | return -ENXIO; | |
78f81cc4 BD |
3402 | } |
3403 | ||
c52f0aa5 HMH |
3404 | return 0; |
3405 | } | |
3406 | ||
fe98a52c HMH |
3407 | static int fan_get_status_safe(u8 *status) |
3408 | { | |
3409 | int rc; | |
3410 | u8 s; | |
3411 | ||
3412 | rc = mutex_lock_interruptible(&fan_mutex); | |
3413 | if (rc < 0) | |
3414 | return rc; | |
3415 | rc = fan_get_status(&s); | |
3416 | if (!rc) | |
3417 | fan_update_desired_level(s); | |
3418 | mutex_unlock(&fan_mutex); | |
3419 | ||
3420 | if (status) | |
3421 | *status = s; | |
3422 | ||
3423 | return rc; | |
3424 | } | |
3425 | ||
56b6aeb0 HMH |
3426 | static void fan_exit(void) |
3427 | { | |
99fba3f8 | 3428 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n"); |
fe98a52c HMH |
3429 | |
3430 | /* FIXME: can we really do this unconditionally? */ | |
3431 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, &fan_attr_group); | |
3432 | driver_remove_file(&tpacpi_pdriver.driver, &driver_attr_fan_watchdog); | |
3433 | ||
56b6aeb0 HMH |
3434 | cancel_delayed_work(&fan_watchdog_task); |
3435 | flush_scheduled_work(); | |
3436 | } | |
3437 | ||
c52f0aa5 HMH |
3438 | static int fan_get_speed(unsigned int *speed) |
3439 | { | |
3440 | u8 hi, lo; | |
3441 | ||
3442 | switch (fan_status_access_mode) { | |
efa27145 | 3443 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 3444 | /* all except 570, 600e/x, 770e, 770x */ |
3ef8a609 HMH |
3445 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
3446 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
3447 | return -EIO; | |
3ef8a609 | 3448 | |
c52f0aa5 HMH |
3449 | if (likely(speed)) |
3450 | *speed = (hi << 8) | lo; | |
3451 | ||
3452 | break; | |
3453 | ||
3454 | default: | |
3455 | return -ENXIO; | |
3456 | } | |
3457 | ||
3458 | return 0; | |
3459 | } | |
3460 | ||
56b6aeb0 | 3461 | static void fan_watchdog_fire(struct work_struct *ignored) |
16663a87 | 3462 | { |
99fba3f8 HMH |
3463 | int rc; |
3464 | ||
56b6aeb0 | 3465 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); |
99fba3f8 HMH |
3466 | rc = fan_set_enable(); |
3467 | if (rc < 0) { | |
3468 | printk(IBM_ERR "fan watchdog: error %d while enabling fan, " | |
3469 | "will try again later...\n", -rc); | |
56b6aeb0 HMH |
3470 | /* reschedule for later */ |
3471 | fan_watchdog_reset(); | |
3472 | } | |
16663a87 HMH |
3473 | } |
3474 | ||
3475 | static void fan_watchdog_reset(void) | |
3476 | { | |
3477 | static int fan_watchdog_active = 0; | |
3478 | ||
4985cd0a HMH |
3479 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
3480 | return; | |
3481 | ||
16663a87 HMH |
3482 | if (fan_watchdog_active) |
3483 | cancel_delayed_work(&fan_watchdog_task); | |
3484 | ||
3485 | if (fan_watchdog_maxinterval > 0) { | |
3486 | fan_watchdog_active = 1; | |
3487 | if (!schedule_delayed_work(&fan_watchdog_task, | |
3488 | msecs_to_jiffies(fan_watchdog_maxinterval | |
3489 | * 1000))) { | |
3490 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
3491 | "watchdog will not trigger\n"); | |
3492 | } | |
3493 | } else | |
3494 | fan_watchdog_active = 0; | |
3495 | } | |
3496 | ||
18ad7996 | 3497 | static int fan_set_level(int level) |
78f81cc4 | 3498 | { |
ecf2a80a HMH |
3499 | if (!fan_control_allowed) |
3500 | return -EPERM; | |
3501 | ||
18ad7996 | 3502 | switch (fan_control_access_mode) { |
efa27145 | 3503 | case TPACPI_FAN_WR_ACPI_SFAN: |
18ad7996 | 3504 | if (level >= 0 && level <= 7) { |
fe98a52c | 3505 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
78f81cc4 | 3506 | return -EIO; |
18ad7996 HMH |
3507 | } else |
3508 | return -EINVAL; | |
3509 | break; | |
3510 | ||
efa27145 HMH |
3511 | case TPACPI_FAN_WR_ACPI_FANS: |
3512 | case TPACPI_FAN_WR_TPEC: | |
3513 | if ((level != TP_EC_FAN_AUTO) && | |
3514 | (level != TP_EC_FAN_FULLSPEED) && | |
a12095c2 HMH |
3515 | ((level < 0) || (level > 7))) |
3516 | return -EINVAL; | |
3517 | ||
eaa7571b HMH |
3518 | /* safety net should the EC not support AUTO |
3519 | * or FULLSPEED mode bits and just ignore them */ | |
3520 | if (level & TP_EC_FAN_FULLSPEED) | |
3521 | level |= 7; /* safety min speed 7 */ | |
3522 | else if (level & TP_EC_FAN_FULLSPEED) | |
3523 | level |= 4; /* safety min speed 4 */ | |
3524 | ||
fe98a52c | 3525 | if (!acpi_ec_write(fan_status_offset, level)) |
a12095c2 | 3526 | return -EIO; |
778b4d74 | 3527 | else |
d8fd94d9 | 3528 | tp_features.fan_ctrl_status_undef = 0; |
a12095c2 HMH |
3529 | break; |
3530 | ||
18ad7996 HMH |
3531 | default: |
3532 | return -ENXIO; | |
3533 | } | |
3534 | return 0; | |
3535 | } | |
3536 | ||
fe98a52c HMH |
3537 | static int fan_set_level_safe(int level) |
3538 | { | |
3539 | int rc; | |
3540 | ||
ecf2a80a HMH |
3541 | if (!fan_control_allowed) |
3542 | return -EPERM; | |
3543 | ||
fe98a52c HMH |
3544 | rc = mutex_lock_interruptible(&fan_mutex); |
3545 | if (rc < 0) | |
3546 | return rc; | |
3547 | ||
3548 | if (level == TPACPI_FAN_LAST_LEVEL) | |
3549 | level = fan_control_desired_level; | |
3550 | ||
3551 | rc = fan_set_level(level); | |
3552 | if (!rc) | |
3553 | fan_update_desired_level(level); | |
3554 | ||
3555 | mutex_unlock(&fan_mutex); | |
3556 | return rc; | |
3557 | } | |
3558 | ||
18ad7996 HMH |
3559 | static int fan_set_enable(void) |
3560 | { | |
1c6a334e HMH |
3561 | u8 s; |
3562 | int rc; | |
3563 | ||
ecf2a80a HMH |
3564 | if (!fan_control_allowed) |
3565 | return -EPERM; | |
3566 | ||
40ca9fdf HMH |
3567 | rc = mutex_lock_interruptible(&fan_mutex); |
3568 | if (rc < 0) | |
3569 | return rc; | |
3570 | ||
18ad7996 | 3571 | switch (fan_control_access_mode) { |
efa27145 HMH |
3572 | case TPACPI_FAN_WR_ACPI_FANS: |
3573 | case TPACPI_FAN_WR_TPEC: | |
40ca9fdf HMH |
3574 | rc = fan_get_status(&s); |
3575 | if (rc < 0) | |
3576 | break; | |
1c6a334e HMH |
3577 | |
3578 | /* Don't go out of emergency fan mode */ | |
eaa7571b HMH |
3579 | if (s != 7) { |
3580 | s &= 0x07; | |
3581 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
3582 | } | |
1c6a334e HMH |
3583 | |
3584 | if (!acpi_ec_write(fan_status_offset, s)) | |
40ca9fdf HMH |
3585 | rc = -EIO; |
3586 | else { | |
d8fd94d9 | 3587 | tp_features.fan_ctrl_status_undef = 0; |
40ca9fdf HMH |
3588 | rc = 0; |
3589 | } | |
1c6a334e HMH |
3590 | break; |
3591 | ||
efa27145 | 3592 | case TPACPI_FAN_WR_ACPI_SFAN: |
40ca9fdf HMH |
3593 | rc = fan_get_status(&s); |
3594 | if (rc < 0) | |
3595 | break; | |
1c6a334e HMH |
3596 | |
3597 | s &= 0x07; | |
3598 | ||
3599 | /* Set fan to at least level 4 */ | |
eaa7571b | 3600 | s |= 4; |
1c6a334e HMH |
3601 | |
3602 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) | |
40ca9fdf HMH |
3603 | rc= -EIO; |
3604 | else | |
3605 | rc = 0; | |
18ad7996 HMH |
3606 | break; |
3607 | ||
3608 | default: | |
40ca9fdf | 3609 | rc = -ENXIO; |
18ad7996 | 3610 | } |
40ca9fdf HMH |
3611 | |
3612 | mutex_unlock(&fan_mutex); | |
3613 | return rc; | |
18ad7996 HMH |
3614 | } |
3615 | ||
3616 | static int fan_set_disable(void) | |
3617 | { | |
40ca9fdf HMH |
3618 | int rc; |
3619 | ||
ecf2a80a HMH |
3620 | if (!fan_control_allowed) |
3621 | return -EPERM; | |
3622 | ||
40ca9fdf HMH |
3623 | rc = mutex_lock_interruptible(&fan_mutex); |
3624 | if (rc < 0) | |
3625 | return rc; | |
3626 | ||
3627 | rc = 0; | |
18ad7996 | 3628 | switch (fan_control_access_mode) { |
efa27145 HMH |
3629 | case TPACPI_FAN_WR_ACPI_FANS: |
3630 | case TPACPI_FAN_WR_TPEC: | |
18ad7996 | 3631 | if (!acpi_ec_write(fan_status_offset, 0x00)) |
40ca9fdf | 3632 | rc = -EIO; |
fe98a52c HMH |
3633 | else { |
3634 | fan_control_desired_level = 0; | |
d8fd94d9 | 3635 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 3636 | } |
18ad7996 HMH |
3637 | break; |
3638 | ||
efa27145 | 3639 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e | 3640 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) |
40ca9fdf | 3641 | rc = -EIO; |
fe98a52c HMH |
3642 | else |
3643 | fan_control_desired_level = 0; | |
1c6a334e HMH |
3644 | break; |
3645 | ||
18ad7996 | 3646 | default: |
40ca9fdf | 3647 | rc = -ENXIO; |
18ad7996 | 3648 | } |
40ca9fdf | 3649 | |
fe98a52c | 3650 | |
40ca9fdf HMH |
3651 | mutex_unlock(&fan_mutex); |
3652 | return rc; | |
56b6aeb0 HMH |
3653 | } |
3654 | ||
3655 | static int fan_set_speed(int speed) | |
3656 | { | |
40ca9fdf HMH |
3657 | int rc; |
3658 | ||
ecf2a80a HMH |
3659 | if (!fan_control_allowed) |
3660 | return -EPERM; | |
3661 | ||
40ca9fdf HMH |
3662 | rc = mutex_lock_interruptible(&fan_mutex); |
3663 | if (rc < 0) | |
3664 | return rc; | |
3665 | ||
3666 | rc = 0; | |
56b6aeb0 | 3667 | switch (fan_control_access_mode) { |
efa27145 | 3668 | case TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
3669 | if (speed >= 0 && speed <= 65535) { |
3670 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
3671 | speed, speed, speed)) | |
40ca9fdf | 3672 | rc = -EIO; |
56b6aeb0 | 3673 | } else |
40ca9fdf | 3674 | rc = -EINVAL; |
56b6aeb0 HMH |
3675 | break; |
3676 | ||
3677 | default: | |
40ca9fdf | 3678 | rc = -ENXIO; |
56b6aeb0 | 3679 | } |
40ca9fdf HMH |
3680 | |
3681 | mutex_unlock(&fan_mutex); | |
3682 | return rc; | |
56b6aeb0 HMH |
3683 | } |
3684 | ||
3685 | static int fan_read(char *p) | |
3686 | { | |
3687 | int len = 0; | |
3688 | int rc; | |
3689 | u8 status; | |
3690 | unsigned int speed = 0; | |
3691 | ||
3692 | switch (fan_status_access_mode) { | |
efa27145 | 3693 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 3694 | /* 570, 600e/x, 770e, 770x */ |
fe98a52c | 3695 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
3696 | return rc; |
3697 | ||
3698 | len += sprintf(p + len, "status:\t\t%s\n" | |
3699 | "level:\t\t%d\n", | |
3700 | (status != 0) ? "enabled" : "disabled", status); | |
3701 | break; | |
3702 | ||
efa27145 | 3703 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 3704 | /* all except 570, 600e/x, 770e, 770x */ |
fe98a52c | 3705 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
3706 | return rc; |
3707 | ||
d8fd94d9 | 3708 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 3709 | if (status != fan_control_initial_status) |
d8fd94d9 | 3710 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
3711 | else |
3712 | /* Return most likely status. In fact, it | |
3713 | * might be the only possible status */ | |
efa27145 | 3714 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
3715 | } |
3716 | ||
3717 | len += sprintf(p + len, "status:\t\t%s\n", | |
3718 | (status != 0) ? "enabled" : "disabled"); | |
3719 | ||
56b6aeb0 HMH |
3720 | if ((rc = fan_get_speed(&speed)) < 0) |
3721 | return rc; | |
3722 | ||
3723 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
3724 | ||
efa27145 | 3725 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
3726 | /* Disengaged mode takes precedence */ |
3727 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 3728 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
3729 | len += sprintf(p + len, "level:\t\tauto\n"); |
3730 | else | |
3731 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
3732 | break; | |
3733 | ||
efa27145 | 3734 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
3735 | default: |
3736 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3737 | } | |
3738 | ||
efa27145 | 3739 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
3740 | len += sprintf(p + len, "commands:\tlevel <level>"); |
3741 | ||
3742 | switch (fan_control_access_mode) { | |
efa27145 | 3743 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
3744 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
3745 | break; | |
3746 | ||
3747 | default: | |
3748 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 3749 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
3750 | break; |
3751 | } | |
3752 | } | |
18ad7996 | 3753 | |
efa27145 | 3754 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
3755 | len += sprintf(p + len, "commands:\tenable, disable\n" |
3756 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
3757 | "1-120 (seconds))\n"); | |
1da177e4 | 3758 | |
efa27145 | 3759 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
3760 | len += sprintf(p + len, "commands:\tspeed <speed>" |
3761 | " (<speed> is 0-65535)\n"); | |
3762 | ||
3763 | return len; | |
78f81cc4 BD |
3764 | } |
3765 | ||
18ad7996 HMH |
3766 | static int fan_write_cmd_level(const char *cmd, int *rc) |
3767 | { | |
3768 | int level; | |
3769 | ||
a12095c2 | 3770 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 3771 | level = TP_EC_FAN_AUTO; |
fe98a52c HMH |
3772 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
3773 | (strlencmp(cmd, "level full-speed") == 0)) | |
efa27145 | 3774 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 3775 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
3776 | return 0; |
3777 | ||
fe98a52c | 3778 | if ((*rc = fan_set_level_safe(level)) == -ENXIO) |
18ad7996 HMH |
3779 | printk(IBM_ERR "level command accepted for unsupported " |
3780 | "access mode %d", fan_control_access_mode); | |
3781 | ||
3782 | return 1; | |
3783 | } | |
3784 | ||
3785 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
3786 | { | |
3787 | if (strlencmp(cmd, "enable") != 0) | |
3788 | return 0; | |
3789 | ||
3790 | if ((*rc = fan_set_enable()) == -ENXIO) | |
3791 | printk(IBM_ERR "enable command accepted for unsupported " | |
3792 | "access mode %d", fan_control_access_mode); | |
3793 | ||
3794 | return 1; | |
3795 | } | |
3796 | ||
3797 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
3798 | { | |
3799 | if (strlencmp(cmd, "disable") != 0) | |
3800 | return 0; | |
3801 | ||
3802 | if ((*rc = fan_set_disable()) == -ENXIO) | |
3803 | printk(IBM_ERR "disable command accepted for unsupported " | |
3804 | "access mode %d", fan_control_access_mode); | |
3805 | ||
3806 | return 1; | |
3807 | } | |
3808 | ||
3809 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
3810 | { | |
3811 | int speed; | |
3812 | ||
a8b7a662 HMH |
3813 | /* TODO: |
3814 | * Support speed <low> <medium> <high> ? */ | |
3815 | ||
18ad7996 HMH |
3816 | if (sscanf(cmd, "speed %d", &speed) != 1) |
3817 | return 0; | |
3818 | ||
3819 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
3820 | printk(IBM_ERR "speed command accepted for unsupported " | |
3821 | "access mode %d", fan_control_access_mode); | |
3822 | ||
3823 | return 1; | |
3824 | } | |
3825 | ||
16663a87 HMH |
3826 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
3827 | { | |
3828 | int interval; | |
3829 | ||
3830 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
3831 | return 0; | |
3832 | ||
3833 | if (interval < 0 || interval > 120) | |
3834 | *rc = -EINVAL; | |
3835 | else | |
3836 | fan_watchdog_maxinterval = interval; | |
3837 | ||
3838 | return 1; | |
3839 | } | |
3840 | ||
18ad7996 HMH |
3841 | static int fan_write(char *buf) |
3842 | { | |
3843 | char *cmd; | |
3844 | int rc = 0; | |
3845 | ||
3846 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 3847 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 3848 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 3849 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 3850 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
3851 | fan_write_cmd_disable(cmd, &rc) || |
3852 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 3853 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
3854 | fan_write_cmd_speed(cmd, &rc)) |
3855 | ) | |
3856 | rc = -EINVAL; | |
16663a87 HMH |
3857 | else if (!rc) |
3858 | fan_watchdog_reset(); | |
18ad7996 HMH |
3859 | } |
3860 | ||
3861 | return rc; | |
3862 | } | |
3863 | ||
a5763f22 HMH |
3864 | static struct ibm_struct fan_driver_data = { |
3865 | .name = "fan", | |
3866 | .read = fan_read, | |
3867 | .write = fan_write, | |
3868 | .exit = fan_exit, | |
a5763f22 HMH |
3869 | }; |
3870 | ||
56b6aeb0 HMH |
3871 | /**************************************************************************** |
3872 | **************************************************************************** | |
3873 | * | |
3874 | * Infrastructure | |
3875 | * | |
3876 | **************************************************************************** | |
3877 | ****************************************************************************/ | |
3878 | ||
3879 | /* /proc support */ | |
3880 | static struct proc_dir_entry *proc_dir = NULL; | |
16663a87 | 3881 | |
56b6aeb0 | 3882 | /* Subdriver registry */ |
a5763f22 HMH |
3883 | static LIST_HEAD(tpacpi_all_drivers); |
3884 | ||
1da177e4 | 3885 | |
56b6aeb0 HMH |
3886 | /* |
3887 | * Module and infrastructure proble, init and exit handling | |
3888 | */ | |
1da177e4 | 3889 | |
fe08bc4b | 3890 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 3891 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 3892 | { |
a5763f22 | 3893 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 3894 | |
a5763f22 | 3895 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
3896 | } |
3897 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
3898 | ||
a5763f22 | 3899 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
3900 | { |
3901 | int ret; | |
a5763f22 | 3902 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
3903 | struct proc_dir_entry *entry; |
3904 | ||
a5763f22 HMH |
3905 | BUG_ON(ibm == NULL); |
3906 | ||
3907 | INIT_LIST_HEAD(&ibm->all_drivers); | |
3908 | ||
92641177 | 3909 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
3910 | return 0; |
3911 | ||
fe08bc4b HMH |
3912 | dbg_printk(TPACPI_DBG_INIT, |
3913 | "probing for %s\n", ibm->name); | |
3914 | ||
a5763f22 HMH |
3915 | if (iibm->init) { |
3916 | ret = iibm->init(iibm); | |
5fba344c HMH |
3917 | if (ret > 0) |
3918 | return 0; /* probe failed */ | |
3919 | if (ret) | |
1da177e4 | 3920 | return ret; |
a5763f22 | 3921 | |
92641177 | 3922 | ibm->flags.init_called = 1; |
1da177e4 LT |
3923 | } |
3924 | ||
8d376cd6 HMH |
3925 | if (ibm->acpi) { |
3926 | if (ibm->acpi->hid) { | |
3927 | ret = register_tpacpi_subdriver(ibm); | |
3928 | if (ret) | |
3929 | goto err_out; | |
3930 | } | |
5fba344c | 3931 | |
8d376cd6 HMH |
3932 | if (ibm->acpi->notify) { |
3933 | ret = setup_acpi_notify(ibm); | |
3934 | if (ret == -ENODEV) { | |
3935 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
3936 | ibm->name); | |
3937 | ret = 0; | |
3938 | goto err_out; | |
3939 | } | |
3940 | if (ret < 0) | |
3941 | goto err_out; | |
5fba344c | 3942 | } |
5fba344c HMH |
3943 | } |
3944 | ||
fe08bc4b HMH |
3945 | dbg_printk(TPACPI_DBG_INIT, |
3946 | "%s installed\n", ibm->name); | |
3947 | ||
78f81cc4 BD |
3948 | if (ibm->read) { |
3949 | entry = create_proc_entry(ibm->name, | |
3950 | S_IFREG | S_IRUGO | S_IWUSR, | |
3951 | proc_dir); | |
3952 | if (!entry) { | |
3953 | printk(IBM_ERR "unable to create proc entry %s\n", | |
3954 | ibm->name); | |
5fba344c HMH |
3955 | ret = -ENODEV; |
3956 | goto err_out; | |
78f81cc4 BD |
3957 | } |
3958 | entry->owner = THIS_MODULE; | |
3959 | entry->data = ibm; | |
8d376cd6 | 3960 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 3961 | if (ibm->write) |
8d376cd6 | 3962 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 3963 | ibm->flags.proc_created = 1; |
78f81cc4 | 3964 | } |
1da177e4 | 3965 | |
a5763f22 HMH |
3966 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
3967 | ||
1da177e4 | 3968 | return 0; |
5fba344c HMH |
3969 | |
3970 | err_out: | |
fe08bc4b HMH |
3971 | dbg_printk(TPACPI_DBG_INIT, |
3972 | "%s: at error exit path with result %d\n", | |
3973 | ibm->name, ret); | |
3974 | ||
5fba344c HMH |
3975 | ibm_exit(ibm); |
3976 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
3977 | } |
3978 | ||
3979 | static void ibm_exit(struct ibm_struct *ibm) | |
3980 | { | |
fe08bc4b | 3981 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); |
a5763f22 HMH |
3982 | |
3983 | list_del_init(&ibm->all_drivers); | |
3984 | ||
8d376cd6 | 3985 | if (ibm->flags.acpi_notify_installed) { |
fe08bc4b HMH |
3986 | dbg_printk(TPACPI_DBG_EXIT, |
3987 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8d376cd6 HMH |
3988 | BUG_ON(!ibm->acpi); |
3989 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
3990 | ibm->acpi->type, | |
3991 | dispatch_acpi_notify); | |
3992 | ibm->flags.acpi_notify_installed = 0; | |
3993 | ibm->flags.acpi_notify_installed = 0; | |
5fba344c | 3994 | } |
1da177e4 | 3995 | |
92641177 | 3996 | if (ibm->flags.proc_created) { |
fe08bc4b HMH |
3997 | dbg_printk(TPACPI_DBG_EXIT, |
3998 | "%s: remove_proc_entry\n", ibm->name); | |
1da177e4 | 3999 | remove_proc_entry(ibm->name, proc_dir); |
92641177 | 4000 | ibm->flags.proc_created = 0; |
5fba344c | 4001 | } |
1da177e4 | 4002 | |
8d376cd6 | 4003 | if (ibm->flags.acpi_driver_registered) { |
fe08bc4b HMH |
4004 | dbg_printk(TPACPI_DBG_EXIT, |
4005 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8d376cd6 HMH |
4006 | BUG_ON(!ibm->acpi); |
4007 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
4008 | kfree(ibm->acpi->driver); | |
4009 | ibm->acpi->driver = NULL; | |
4010 | ibm->flags.acpi_driver_registered = 0; | |
5fba344c HMH |
4011 | } |
4012 | ||
92641177 | 4013 | if (ibm->flags.init_called && ibm->exit) { |
5fba344c | 4014 | ibm->exit(); |
92641177 | 4015 | ibm->flags.init_called = 0; |
1da177e4 | 4016 | } |
a5763f22 HMH |
4017 | |
4018 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
1da177e4 LT |
4019 | } |
4020 | ||
56b6aeb0 HMH |
4021 | /* Probing */ |
4022 | ||
4023 | static char *ibm_thinkpad_ec_found = NULL; | |
4024 | ||
4025 | static char* __init check_dmi_for_ec(void) | |
1da177e4 | 4026 | { |
56b6aeb0 HMH |
4027 | struct dmi_device *dev = NULL; |
4028 | char ec_fw_string[18]; | |
1da177e4 | 4029 | |
56b6aeb0 HMH |
4030 | /* |
4031 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
4032 | * X32 or newer, all Z series; Some models must have an | |
4033 | * up-to-date BIOS or they will not be detected. | |
4034 | * | |
4035 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
4036 | */ | |
4037 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
4038 | if (sscanf(dev->name, | |
4039 | "IBM ThinkPad Embedded Controller -[%17c", | |
4040 | ec_fw_string) == 1) { | |
4041 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
4042 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
4043 | return kstrdup(ec_fw_string, GFP_KERNEL); | |
78f81cc4 | 4044 | } |
1da177e4 | 4045 | } |
56b6aeb0 | 4046 | return NULL; |
1da177e4 LT |
4047 | } |
4048 | ||
5fba344c HMH |
4049 | static int __init probe_for_thinkpad(void) |
4050 | { | |
4051 | int is_thinkpad; | |
4052 | ||
4053 | if (acpi_disabled) | |
4054 | return -ENODEV; | |
4055 | ||
4056 | /* | |
4057 | * Non-ancient models have better DMI tagging, but very old models | |
4058 | * don't. | |
4059 | */ | |
4060 | is_thinkpad = dmi_name_in_vendors("ThinkPad"); | |
4061 | ||
4062 | /* ec is required because many other handles are relative to it */ | |
8d376cd6 | 4063 | IBM_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
4064 | if (!ec_handle) { |
4065 | if (is_thinkpad) | |
4066 | printk(IBM_ERR | |
4067 | "Not yet supported ThinkPad detected!\n"); | |
4068 | return -ENODEV; | |
4069 | } | |
4070 | ||
0dcef77c HMH |
4071 | /* |
4072 | * Risks a regression on very old machines, but reduces potential | |
4073 | * false positives a damn great deal | |
4074 | */ | |
4075 | if (!is_thinkpad) | |
4076 | is_thinkpad = dmi_name_in_vendors("IBM"); | |
4077 | ||
4078 | if (!is_thinkpad && !force_load) | |
4079 | return -ENODEV; | |
4080 | ||
5fba344c HMH |
4081 | return 0; |
4082 | } | |
4083 | ||
4084 | ||
56b6aeb0 | 4085 | /* Module init, exit, parameters */ |
1da177e4 | 4086 | |
a5763f22 HMH |
4087 | static struct ibm_init_struct ibms_init[] __initdata = { |
4088 | { | |
4089 | .init = thinkpad_acpi_driver_init, | |
4090 | .data = &thinkpad_acpi_driver_data, | |
4091 | }, | |
4092 | { | |
4093 | .init = hotkey_init, | |
4094 | .data = &hotkey_driver_data, | |
4095 | }, | |
4096 | { | |
4097 | .init = bluetooth_init, | |
4098 | .data = &bluetooth_driver_data, | |
4099 | }, | |
4100 | { | |
4101 | .init = wan_init, | |
4102 | .data = &wan_driver_data, | |
4103 | }, | |
4104 | { | |
4105 | .init = video_init, | |
4106 | .data = &video_driver_data, | |
4107 | }, | |
4108 | { | |
4109 | .init = light_init, | |
4110 | .data = &light_driver_data, | |
4111 | }, | |
4112 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
4113 | { | |
4114 | .init = dock_init, | |
4115 | .data = &dock_driver_data[0], | |
4116 | }, | |
4117 | { | |
d94a7f16 | 4118 | .init = dock_init2, |
a5763f22 HMH |
4119 | .data = &dock_driver_data[1], |
4120 | }, | |
4121 | #endif | |
4122 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
4123 | { | |
4124 | .init = bay_init, | |
4125 | .data = &bay_driver_data, | |
4126 | }, | |
4127 | #endif | |
4128 | { | |
4129 | .init = cmos_init, | |
4130 | .data = &cmos_driver_data, | |
4131 | }, | |
4132 | { | |
4133 | .init = led_init, | |
4134 | .data = &led_driver_data, | |
4135 | }, | |
4136 | { | |
4137 | .init = beep_init, | |
4138 | .data = &beep_driver_data, | |
4139 | }, | |
4140 | { | |
4141 | .init = thermal_init, | |
4142 | .data = &thermal_driver_data, | |
4143 | }, | |
4144 | { | |
4145 | .data = &ecdump_driver_data, | |
4146 | }, | |
4147 | { | |
4148 | .init = brightness_init, | |
4149 | .data = &brightness_driver_data, | |
4150 | }, | |
4151 | { | |
4152 | .data = &volume_driver_data, | |
4153 | }, | |
4154 | { | |
4155 | .init = fan_init, | |
4156 | .data = &fan_driver_data, | |
4157 | }, | |
4158 | }; | |
4159 | ||
3945ac36 | 4160 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
4161 | { |
4162 | unsigned int i; | |
a5763f22 | 4163 | struct ibm_struct *ibm; |
1da177e4 | 4164 | |
a5763f22 HMH |
4165 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
4166 | ibm = ibms_init[i].data; | |
4167 | BUG_ON(ibm == NULL); | |
4168 | ||
4169 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
4170 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 4171 | return -ENOSPC; |
a5763f22 HMH |
4172 | strcpy(ibms_init[i].param, val); |
4173 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
4174 | return 0; |
4175 | } | |
a5763f22 | 4176 | } |
1da177e4 | 4177 | |
1da177e4 LT |
4178 | return -EINVAL; |
4179 | } | |
4180 | ||
56b6aeb0 HMH |
4181 | static int experimental; |
4182 | module_param(experimental, int, 0); | |
4183 | ||
132ce091 HMH |
4184 | static u32 dbg_level; |
4185 | module_param_named(debug, dbg_level, uint, 0); | |
4186 | ||
0dcef77c HMH |
4187 | static int force_load; |
4188 | module_param(force_load, int, 0); | |
4189 | ||
ecf2a80a HMH |
4190 | static int fan_control_allowed; |
4191 | module_param_named(fan_control, fan_control_allowed, int, 0); | |
4192 | ||
1da177e4 LT |
4193 | #define IBM_PARAM(feature) \ |
4194 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
4195 | ||
78f81cc4 BD |
4196 | IBM_PARAM(hotkey); |
4197 | IBM_PARAM(bluetooth); | |
4198 | IBM_PARAM(video); | |
4199 | IBM_PARAM(light); | |
85998248 | 4200 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
78f81cc4 | 4201 | IBM_PARAM(dock); |
63e5f248 | 4202 | #endif |
85998248 | 4203 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 | 4204 | IBM_PARAM(bay); |
85998248 | 4205 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
78f81cc4 BD |
4206 | IBM_PARAM(cmos); |
4207 | IBM_PARAM(led); | |
4208 | IBM_PARAM(beep); | |
4209 | IBM_PARAM(ecdump); | |
4210 | IBM_PARAM(brightness); | |
4211 | IBM_PARAM(volume); | |
4212 | IBM_PARAM(fan); | |
4213 | ||
1def7115 | 4214 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
4215 | { |
4216 | int ret, i; | |
4217 | ||
54ae1501 | 4218 | /* Driver-level probe */ |
5fba344c HMH |
4219 | ret = probe_for_thinkpad(); |
4220 | if (ret) | |
4221 | return ret; | |
1da177e4 | 4222 | |
54ae1501 | 4223 | /* Driver initialization */ |
60eb0b35 | 4224 | ibm_thinkpad_ec_found = check_dmi_for_ec(); |
8d376cd6 HMH |
4225 | IBM_ACPIHANDLE_INIT(ecrd); |
4226 | IBM_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 4227 | |
8d376cd6 | 4228 | proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir); |
1da177e4 | 4229 | if (!proc_dir) { |
8d376cd6 | 4230 | printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR); |
1def7115 | 4231 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
4232 | return -ENODEV; |
4233 | } | |
4234 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 4235 | |
54ae1501 HMH |
4236 | ret = platform_driver_register(&tpacpi_pdriver); |
4237 | if (ret) { | |
4238 | printk(IBM_ERR "unable to register platform driver\n"); | |
4239 | thinkpad_acpi_module_exit(); | |
4240 | return ret; | |
4241 | } | |
176750d6 HMH |
4242 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
4243 | if (ret) { | |
4244 | printk(IBM_ERR "unable to create sysfs driver attributes\n"); | |
4245 | thinkpad_acpi_module_exit(); | |
4246 | return ret; | |
4247 | } | |
4248 | ||
54ae1501 HMH |
4249 | |
4250 | /* Device initialization */ | |
4251 | tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1, | |
4252 | NULL, 0); | |
4253 | if (IS_ERR(tpacpi_pdev)) { | |
4254 | ret = PTR_ERR(tpacpi_pdev); | |
4255 | tpacpi_pdev = NULL; | |
4256 | printk(IBM_ERR "unable to register platform device\n"); | |
4257 | thinkpad_acpi_module_exit(); | |
4258 | return ret; | |
4259 | } | |
4260 | tpacpi_hwmon = hwmon_device_register(&tpacpi_pdev->dev); | |
4261 | if (IS_ERR(tpacpi_hwmon)) { | |
4262 | ret = PTR_ERR(tpacpi_hwmon); | |
4263 | tpacpi_hwmon = NULL; | |
4264 | printk(IBM_ERR "unable to register hwmon device\n"); | |
4265 | thinkpad_acpi_module_exit(); | |
4266 | return ret; | |
4267 | } | |
a5763f22 HMH |
4268 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
4269 | ret = ibm_init(&ibms_init[i]); | |
4270 | if (ret >= 0 && *ibms_init[i].param) | |
4271 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 4272 | if (ret < 0) { |
1def7115 | 4273 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
4274 | return ret; |
4275 | } | |
4276 | } | |
4277 | ||
4278 | return 0; | |
4279 | } | |
4280 | ||
1def7115 | 4281 | static void thinkpad_acpi_module_exit(void) |
56b6aeb0 | 4282 | { |
a5763f22 HMH |
4283 | struct ibm_struct *ibm, *itmp; |
4284 | ||
4285 | list_for_each_entry_safe_reverse(ibm, itmp, | |
4286 | &tpacpi_all_drivers, | |
4287 | all_drivers) { | |
4288 | ibm_exit(ibm); | |
4289 | } | |
56b6aeb0 | 4290 | |
a5763f22 | 4291 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); |
56b6aeb0 | 4292 | |
54ae1501 HMH |
4293 | if (tpacpi_hwmon) |
4294 | hwmon_device_unregister(tpacpi_hwmon); | |
4295 | ||
4296 | if (tpacpi_pdev) | |
4297 | platform_device_unregister(tpacpi_pdev); | |
4298 | ||
176750d6 | 4299 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); |
54ae1501 HMH |
4300 | platform_driver_unregister(&tpacpi_pdriver); |
4301 | ||
56b6aeb0 | 4302 | if (proc_dir) |
8d376cd6 | 4303 | remove_proc_entry(IBM_PROC_DIR, acpi_root_dir); |
56b6aeb0 | 4304 | |
8d376cd6 | 4305 | kfree(ibm_thinkpad_ec_found); |
56b6aeb0 HMH |
4306 | } |
4307 | ||
1def7115 HMH |
4308 | module_init(thinkpad_acpi_module_init); |
4309 | module_exit(thinkpad_acpi_module_exit); |