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