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Commit | Line | Data |
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1da177e4 | 1 | /* |
643f12db | 2 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 LT |
3 | * |
4 | * | |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
a62bc916 | 6 | * Copyright (C) 2006-2007 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
1da177e4 LT |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
a62bc916 HMH |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
21 | * 02110-1301, USA. | |
78f81cc4 BD |
22 | */ |
23 | ||
643f12db | 24 | #define IBM_VERSION "0.14" |
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 | |
a5763f22 | 1023 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 1024 | { |
d6fdd1e9 HMH |
1025 | int status = 0; |
1026 | ||
fe08bc4b HMH |
1027 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
1028 | ||
8d376cd6 | 1029 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1030 | |
78f81cc4 BD |
1031 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1032 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 1033 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
1034 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
1035 | ||
1036 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
1037 | str_supported(tp_features.bluetooth), | |
1038 | status); | |
1039 | ||
1040 | if (tp_features.bluetooth && | |
1041 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
1042 | /* no bluetooth hardware present in system */ | |
1043 | tp_features.bluetooth = 0; | |
1044 | dbg_printk(TPACPI_DBG_INIT, | |
1045 | "bluetooth hardware not installed\n"); | |
1046 | } | |
fe08bc4b | 1047 | |
d8fd94d9 | 1048 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
1049 | } |
1050 | ||
d6fdd1e9 | 1051 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
1052 | { |
1053 | int status; | |
1054 | ||
d6fdd1e9 HMH |
1055 | if (!tp_features.bluetooth) |
1056 | return -ENODEV; | |
1da177e4 | 1057 | |
d6fdd1e9 HMH |
1058 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
1059 | return -EIO; | |
1060 | ||
1061 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
1062 | } | |
1063 | ||
1064 | static int bluetooth_set_radiosw(int radio_on) | |
1065 | { | |
1066 | int status; | |
1067 | ||
1068 | if (!tp_features.bluetooth) | |
1069 | return -ENODEV; | |
1070 | ||
1071 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
1072 | return -EIO; | |
1073 | if (radio_on) | |
1074 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
1075 | else | |
1076 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
1077 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
1078 | return -EIO; | |
1079 | ||
1080 | return 0; | |
1da177e4 LT |
1081 | } |
1082 | ||
78f81cc4 | 1083 | static int bluetooth_read(char *p) |
1da177e4 LT |
1084 | { |
1085 | int len = 0; | |
d6fdd1e9 | 1086 | int status = bluetooth_get_radiosw(); |
1da177e4 | 1087 | |
d8fd94d9 | 1088 | if (!tp_features.bluetooth) |
1da177e4 | 1089 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 1090 | else { |
d6fdd1e9 HMH |
1091 | len += sprintf(p + len, "status:\t\t%s\n", |
1092 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
1093 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1094 | } | |
1095 | ||
1096 | return len; | |
1097 | } | |
1098 | ||
78f81cc4 | 1099 | static int bluetooth_write(char *buf) |
1da177e4 | 1100 | { |
1da177e4 | 1101 | char *cmd; |
1da177e4 | 1102 | |
d8fd94d9 | 1103 | if (!tp_features.bluetooth) |
78f81cc4 | 1104 | return -ENODEV; |
1da177e4 LT |
1105 | |
1106 | while ((cmd = next_cmd(&buf))) { | |
1107 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1108 | bluetooth_set_radiosw(1); |
1da177e4 | 1109 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1110 | bluetooth_set_radiosw(0); |
1da177e4 LT |
1111 | } else |
1112 | return -EINVAL; | |
1da177e4 LT |
1113 | } |
1114 | ||
1da177e4 LT |
1115 | return 0; |
1116 | } | |
1117 | ||
a5763f22 HMH |
1118 | static struct ibm_struct bluetooth_driver_data = { |
1119 | .name = "bluetooth", | |
1120 | .read = bluetooth_read, | |
1121 | .write = bluetooth_write, | |
1122 | }; | |
1123 | ||
56b6aeb0 HMH |
1124 | /************************************************************************* |
1125 | * Wan subdriver | |
1126 | */ | |
1127 | ||
a5763f22 | 1128 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 1129 | { |
d6fdd1e9 HMH |
1130 | int status = 0; |
1131 | ||
fe08bc4b HMH |
1132 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
1133 | ||
8d376cd6 | 1134 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1135 | |
d8fd94d9 | 1136 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
1137 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
1138 | ||
1139 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
1140 | str_supported(tp_features.wan), | |
1141 | status); | |
1142 | ||
1143 | if (tp_features.wan && | |
1144 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
1145 | /* no wan hardware present in system */ | |
1146 | tp_features.wan = 0; | |
1147 | dbg_printk(TPACPI_DBG_INIT, | |
1148 | "wan hardware not installed\n"); | |
1149 | } | |
fe08bc4b | 1150 | |
d8fd94d9 | 1151 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
1152 | } |
1153 | ||
d6fdd1e9 | 1154 | static int wan_get_radiosw(void) |
42adb53c JF |
1155 | { |
1156 | int status; | |
1157 | ||
d6fdd1e9 HMH |
1158 | if (!tp_features.wan) |
1159 | return -ENODEV; | |
42adb53c | 1160 | |
d6fdd1e9 HMH |
1161 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
1162 | return -EIO; | |
1163 | ||
1164 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
1165 | } | |
1166 | ||
1167 | static int wan_set_radiosw(int radio_on) | |
1168 | { | |
1169 | int status; | |
1170 | ||
1171 | if (!tp_features.wan) | |
1172 | return -ENODEV; | |
1173 | ||
1174 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
1175 | return -EIO; | |
1176 | if (radio_on) | |
1177 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
1178 | else | |
1179 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
1180 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
1181 | return -EIO; | |
1182 | ||
1183 | return 0; | |
42adb53c JF |
1184 | } |
1185 | ||
1186 | static int wan_read(char *p) | |
1187 | { | |
1188 | int len = 0; | |
d6fdd1e9 | 1189 | int status = wan_get_radiosw(); |
42adb53c | 1190 | |
d8fd94d9 | 1191 | if (!tp_features.wan) |
42adb53c | 1192 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 1193 | else { |
d6fdd1e9 HMH |
1194 | len += sprintf(p + len, "status:\t\t%s\n", |
1195 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
1196 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1197 | } | |
1198 | ||
1199 | return len; | |
1200 | } | |
1201 | ||
1202 | static int wan_write(char *buf) | |
1203 | { | |
42adb53c | 1204 | char *cmd; |
42adb53c | 1205 | |
d8fd94d9 | 1206 | if (!tp_features.wan) |
42adb53c JF |
1207 | return -ENODEV; |
1208 | ||
1209 | while ((cmd = next_cmd(&buf))) { | |
1210 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1211 | wan_set_radiosw(1); |
42adb53c | 1212 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1213 | wan_set_radiosw(0); |
42adb53c JF |
1214 | } else |
1215 | return -EINVAL; | |
42adb53c JF |
1216 | } |
1217 | ||
42adb53c JF |
1218 | return 0; |
1219 | } | |
1220 | ||
a5763f22 HMH |
1221 | static struct ibm_struct wan_driver_data = { |
1222 | .name = "wan", | |
1223 | .read = wan_read, | |
1224 | .write = wan_write, | |
92641177 | 1225 | .flags.experimental = 1, |
a5763f22 HMH |
1226 | }; |
1227 | ||
56b6aeb0 HMH |
1228 | /************************************************************************* |
1229 | * Video subdriver | |
1230 | */ | |
1231 | ||
9a8e1738 HMH |
1232 | static enum video_access_mode video_supported; |
1233 | static int video_orig_autosw; | |
78f81cc4 | 1234 | |
56b6aeb0 HMH |
1235 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
1236 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
1237 | "\\_SB.PCI0.VID0", /* 770e */ | |
1238 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
1239 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
1240 | ); /* R30, R31 */ | |
1241 | ||
1242 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
1243 | ||
a5763f22 | 1244 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 1245 | { |
78f81cc4 BD |
1246 | int ivga; |
1247 | ||
fe08bc4b HMH |
1248 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
1249 | ||
8d376cd6 HMH |
1250 | IBM_ACPIHANDLE_INIT(vid); |
1251 | IBM_ACPIHANDLE_INIT(vid2); | |
5fba344c | 1252 | |
78f81cc4 BD |
1253 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
1254 | /* G41, assume IVGA doesn't change */ | |
1255 | vid_handle = vid2_handle; | |
1256 | ||
1257 | if (!vid_handle) | |
1258 | /* video switching not supported on R30, R31 */ | |
efa27145 | 1259 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
1260 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
1261 | /* 570 */ | |
efa27145 | 1262 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
1263 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
1264 | /* 600e/x, 770e, 770x */ | |
efa27145 | 1265 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
1266 | else |
1267 | /* all others */ | |
efa27145 | 1268 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 1269 | |
fe08bc4b HMH |
1270 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
1271 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
1272 | video_supported); | |
1273 | ||
5fba344c | 1274 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
1275 | } |
1276 | ||
56b6aeb0 HMH |
1277 | static void video_exit(void) |
1278 | { | |
83f34724 HMH |
1279 | dbg_printk(TPACPI_DBG_EXIT, |
1280 | "restoring original video autoswitch mode\n"); | |
1281 | if (video_autosw_set(video_orig_autosw)) | |
1282 | printk(IBM_ERR "error while trying to restore original " | |
1283 | "video autoswitch mode\n"); | |
56b6aeb0 HMH |
1284 | } |
1285 | ||
83f34724 | 1286 | static int video_outputsw_get(void) |
1da177e4 LT |
1287 | { |
1288 | int status = 0; | |
1289 | int i; | |
1290 | ||
83f34724 HMH |
1291 | switch (video_supported) { |
1292 | case TPACPI_VIDEO_570: | |
1293 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
1294 | TP_ACPI_VIDEO_570_PHSCMD)) | |
1295 | return -EIO; | |
1296 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
1297 | break; | |
1298 | case TPACPI_VIDEO_770: | |
1299 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1300 | return -EIO; | |
1301 | if (i) | |
1302 | status |= TP_ACPI_VIDEO_S_LCD; | |
1303 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1304 | return -EIO; | |
1305 | if (i) | |
1306 | status |= TP_ACPI_VIDEO_S_CRT; | |
1307 | break; | |
1308 | case TPACPI_VIDEO_NEW: | |
1309 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
1310 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1311 | return -EIO; | |
1312 | if (i) | |
1313 | status |= TP_ACPI_VIDEO_S_CRT; | |
1314 | ||
1315 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
1316 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1317 | return -EIO; | |
1318 | if (i) | |
1319 | status |= TP_ACPI_VIDEO_S_LCD; | |
1320 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
1321 | return -EIO; | |
1322 | if (i) | |
1323 | status |= TP_ACPI_VIDEO_S_DVI; | |
1324 | break; | |
1325 | default: | |
1326 | return -ENOSYS; | |
78f81cc4 BD |
1327 | } |
1328 | ||
1329 | return status; | |
1330 | } | |
1da177e4 | 1331 | |
83f34724 | 1332 | static int video_outputsw_set(int status) |
78f81cc4 | 1333 | { |
83f34724 HMH |
1334 | int autosw; |
1335 | int res = 0; | |
1336 | ||
1337 | switch (video_supported) { | |
1338 | case TPACPI_VIDEO_570: | |
1339 | res = acpi_evalf(NULL, NULL, | |
1340 | "\\_SB.PHS2", "vdd", | |
1341 | TP_ACPI_VIDEO_570_PHS2CMD, | |
1342 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
1343 | break; | |
1344 | case TPACPI_VIDEO_770: | |
1345 | autosw = video_autosw_get(); | |
1346 | if (autosw < 0) | |
1347 | return autosw; | |
1da177e4 | 1348 | |
83f34724 HMH |
1349 | res = video_autosw_set(1); |
1350 | if (res) | |
1351 | return res; | |
1352 | res = acpi_evalf(vid_handle, NULL, | |
1353 | "ASWT", "vdd", status * 0x100, 0); | |
1354 | if (!autosw && video_autosw_set(autosw)) { | |
1355 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1356 | return -EIO; | |
1357 | } | |
1358 | break; | |
1359 | case TPACPI_VIDEO_NEW: | |
1360 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
1361 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
1362 | break; | |
1363 | default: | |
1364 | return -ENOSYS; | |
1365 | } | |
1da177e4 | 1366 | |
83f34724 | 1367 | return (res)? 0 : -EIO; |
1da177e4 LT |
1368 | } |
1369 | ||
83f34724 | 1370 | static int video_autosw_get(void) |
78f81cc4 | 1371 | { |
83f34724 | 1372 | int autosw = 0; |
78f81cc4 | 1373 | |
83f34724 HMH |
1374 | switch (video_supported) { |
1375 | case TPACPI_VIDEO_570: | |
1376 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
1377 | return -EIO; | |
1378 | break; | |
1379 | case TPACPI_VIDEO_770: | |
1380 | case TPACPI_VIDEO_NEW: | |
1381 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
1382 | return -EIO; | |
1383 | break; | |
1384 | default: | |
1385 | return -ENOSYS; | |
1386 | } | |
78f81cc4 | 1387 | |
83f34724 | 1388 | return autosw & 1; |
78f81cc4 BD |
1389 | } |
1390 | ||
83f34724 | 1391 | static int video_autosw_set(int enable) |
78f81cc4 | 1392 | { |
83f34724 HMH |
1393 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
1394 | return -EIO; | |
1395 | return 0; | |
78f81cc4 BD |
1396 | } |
1397 | ||
83f34724 | 1398 | static int video_outputsw_cycle(void) |
78f81cc4 | 1399 | { |
83f34724 HMH |
1400 | int autosw = video_autosw_get(); |
1401 | int res; | |
78f81cc4 | 1402 | |
83f34724 HMH |
1403 | if (autosw < 0) |
1404 | return autosw; | |
78f81cc4 | 1405 | |
83f34724 HMH |
1406 | switch (video_supported) { |
1407 | case TPACPI_VIDEO_570: | |
1408 | res = video_autosw_set(1); | |
1409 | if (res) | |
1410 | return res; | |
1411 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
1412 | break; | |
1413 | case TPACPI_VIDEO_770: | |
1414 | case TPACPI_VIDEO_NEW: | |
1415 | res = video_autosw_set(1); | |
1416 | if (res) | |
1417 | return res; | |
1418 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
1419 | break; | |
1420 | default: | |
1421 | return -ENOSYS; | |
1422 | } | |
1423 | if (!autosw && video_autosw_set(autosw)) { | |
1424 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1425 | return -EIO; | |
78f81cc4 BD |
1426 | } |
1427 | ||
83f34724 HMH |
1428 | return (res)? 0 : -EIO; |
1429 | } | |
1430 | ||
1431 | static int video_expand_toggle(void) | |
1432 | { | |
1433 | switch (video_supported) { | |
1434 | case TPACPI_VIDEO_570: | |
1435 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
1436 | 0 : -EIO; | |
1437 | case TPACPI_VIDEO_770: | |
1438 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
1439 | 0 : -EIO; | |
1440 | case TPACPI_VIDEO_NEW: | |
1441 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
1442 | 0 : -EIO; | |
1443 | default: | |
1444 | return -ENOSYS; | |
1445 | } | |
1446 | /* not reached */ | |
78f81cc4 BD |
1447 | } |
1448 | ||
56b6aeb0 HMH |
1449 | static int video_read(char *p) |
1450 | { | |
83f34724 | 1451 | int status, autosw; |
56b6aeb0 HMH |
1452 | int len = 0; |
1453 | ||
83f34724 | 1454 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
1455 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1456 | return len; | |
1457 | } | |
1458 | ||
83f34724 HMH |
1459 | status = video_outputsw_get(); |
1460 | if (status < 0) | |
1461 | return status; | |
1462 | ||
1463 | autosw = video_autosw_get(); | |
1464 | if (autosw < 0) | |
1465 | return autosw; | |
1466 | ||
56b6aeb0 HMH |
1467 | len += sprintf(p + len, "status:\t\tsupported\n"); |
1468 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
1469 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 1470 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1471 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
1472 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
1473 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
1474 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 1475 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1476 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
1477 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
1478 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
1479 | ||
1480 | return len; | |
1481 | } | |
1482 | ||
78f81cc4 | 1483 | static int video_write(char *buf) |
1da177e4 LT |
1484 | { |
1485 | char *cmd; | |
1486 | int enable, disable, status; | |
83f34724 | 1487 | int res; |
1da177e4 | 1488 | |
83f34724 | 1489 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
1490 | return -ENODEV; |
1491 | ||
83f34724 HMH |
1492 | enable = 0; |
1493 | disable = 0; | |
1da177e4 LT |
1494 | |
1495 | while ((cmd = next_cmd(&buf))) { | |
1496 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 1497 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 1498 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 1499 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 1500 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 1501 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 1502 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 1503 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 1504 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1505 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 1506 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 1507 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1508 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 1509 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 1510 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
1511 | res = video_autosw_set(1); |
1512 | if (res) | |
1513 | return res; | |
1da177e4 | 1514 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
1515 | res = video_autosw_set(0); |
1516 | if (res) | |
1517 | return res; | |
1da177e4 | 1518 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
1519 | res = video_outputsw_cycle(); |
1520 | if (res) | |
1521 | return res; | |
1da177e4 | 1522 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
1523 | res = video_expand_toggle(); |
1524 | if (res) | |
1525 | return res; | |
1da177e4 LT |
1526 | } else |
1527 | return -EINVAL; | |
1528 | } | |
1529 | ||
1530 | if (enable || disable) { | |
83f34724 HMH |
1531 | status = video_outputsw_get(); |
1532 | if (status < 0) | |
1533 | return status; | |
1534 | res = video_outputsw_set((status & ~disable) | enable); | |
1535 | if (res) | |
1536 | return res; | |
1da177e4 LT |
1537 | } |
1538 | ||
1539 | return 0; | |
1540 | } | |
1541 | ||
a5763f22 HMH |
1542 | static struct ibm_struct video_driver_data = { |
1543 | .name = "video", | |
1544 | .read = video_read, | |
1545 | .write = video_write, | |
1546 | .exit = video_exit, | |
1547 | }; | |
1548 | ||
56b6aeb0 HMH |
1549 | /************************************************************************* |
1550 | * Light (thinklight) subdriver | |
1551 | */ | |
1da177e4 | 1552 | |
56b6aeb0 HMH |
1553 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
1554 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
1555 | ||
a5763f22 | 1556 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 1557 | { |
fe08bc4b HMH |
1558 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
1559 | ||
8d376cd6 HMH |
1560 | IBM_ACPIHANDLE_INIT(ledb); |
1561 | IBM_ACPIHANDLE_INIT(lght); | |
1562 | IBM_ACPIHANDLE_INIT(cmos); | |
5fba344c | 1563 | |
78f81cc4 | 1564 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 1565 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 1566 | |
d8fd94d9 | 1567 | if (tp_features.light) |
78f81cc4 BD |
1568 | /* light status not supported on |
1569 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
1570 | tp_features.light_status = |
1571 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 1572 | |
fe08bc4b | 1573 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 1574 | str_supported(tp_features.light)); |
fe08bc4b | 1575 | |
d8fd94d9 | 1576 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
1577 | } |
1578 | ||
78f81cc4 | 1579 | static int light_read(char *p) |
1da177e4 LT |
1580 | { |
1581 | int len = 0; | |
1582 | int status = 0; | |
1583 | ||
d8fd94d9 | 1584 | if (!tp_features.light) { |
78f81cc4 | 1585 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 1586 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
1587 | len += sprintf(p + len, "status:\t\tunknown\n"); |
1588 | len += sprintf(p + len, "commands:\ton, off\n"); | |
1589 | } else { | |
1da177e4 LT |
1590 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
1591 | return -EIO; | |
1592 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
1593 | len += sprintf(p + len, "commands:\ton, off\n"); |
1594 | } | |
1da177e4 LT |
1595 | |
1596 | return len; | |
1597 | } | |
1598 | ||
78f81cc4 | 1599 | static int light_write(char *buf) |
1da177e4 LT |
1600 | { |
1601 | int cmos_cmd, lght_cmd; | |
1602 | char *cmd; | |
1603 | int success; | |
78f81cc4 | 1604 | |
d8fd94d9 | 1605 | if (!tp_features.light) |
78f81cc4 BD |
1606 | return -ENODEV; |
1607 | ||
1da177e4 LT |
1608 | while ((cmd = next_cmd(&buf))) { |
1609 | if (strlencmp(cmd, "on") == 0) { | |
1610 | cmos_cmd = 0x0c; | |
1611 | lght_cmd = 1; | |
1612 | } else if (strlencmp(cmd, "off") == 0) { | |
1613 | cmos_cmd = 0x0d; | |
1614 | lght_cmd = 0; | |
1615 | } else | |
1616 | return -EINVAL; | |
78f81cc4 | 1617 | |
1da177e4 | 1618 | success = cmos_handle ? |
78f81cc4 BD |
1619 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
1620 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
1621 | if (!success) |
1622 | return -EIO; | |
1623 | } | |
1624 | ||
1625 | return 0; | |
1626 | } | |
1627 | ||
a5763f22 HMH |
1628 | static struct ibm_struct light_driver_data = { |
1629 | .name = "light", | |
1630 | .read = light_read, | |
1631 | .write = light_write, | |
1632 | }; | |
1633 | ||
56b6aeb0 HMH |
1634 | /************************************************************************* |
1635 | * Dock subdriver | |
1636 | */ | |
1da177e4 | 1637 | |
85998248 | 1638 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 HMH |
1639 | |
1640 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ | |
1641 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
1642 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
1643 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
1644 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
1645 | ||
5fba344c HMH |
1646 | /* don't list other alternatives as we install a notify handler on the 570 */ |
1647 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
1648 | ||
d94a7f16 HMH |
1649 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
1650 | { | |
1651 | .notify = dock_notify, | |
1652 | .handle = &dock_handle, | |
1653 | .type = ACPI_SYSTEM_NOTIFY, | |
1654 | }, | |
1655 | { | |
1656 | .hid = IBM_PCI_HID, | |
1657 | .notify = dock_notify, | |
1658 | .handle = &pci_handle, | |
1659 | .type = ACPI_SYSTEM_NOTIFY, | |
1660 | }, | |
1661 | }; | |
1662 | ||
1663 | static struct ibm_struct dock_driver_data[2] = { | |
1664 | { | |
1665 | .name = "dock", | |
1666 | .read = dock_read, | |
1667 | .write = dock_write, | |
1668 | .acpi = &ibm_dock_acpidriver[0], | |
1669 | }, | |
1670 | { | |
1671 | .name = "dock", | |
1672 | .acpi = &ibm_dock_acpidriver[1], | |
1673 | }, | |
1674 | }; | |
1675 | ||
1da177e4 LT |
1676 | #define dock_docked() (_sta(dock_handle) & 1) |
1677 | ||
a5763f22 | 1678 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 1679 | { |
fe08bc4b HMH |
1680 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
1681 | ||
8d376cd6 | 1682 | IBM_ACPIHANDLE_INIT(dock); |
5fba344c | 1683 | |
fe08bc4b HMH |
1684 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
1685 | str_supported(dock_handle != NULL)); | |
1686 | ||
5fba344c HMH |
1687 | return (dock_handle)? 0 : 1; |
1688 | } | |
1689 | ||
d94a7f16 HMH |
1690 | static int __init dock_init2(struct ibm_init_struct *iibm) |
1691 | { | |
1692 | int dock2_needed; | |
1693 | ||
1694 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
1695 | ||
1696 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
1697 | dock_driver_data[0].flags.acpi_notify_installed) { | |
1698 | IBM_ACPIHANDLE_INIT(pci); | |
1699 | dock2_needed = (pci_handle != NULL); | |
1700 | vdbg_printk(TPACPI_DBG_INIT, | |
1701 | "dock PCI handler for the TP 570 is %s\n", | |
1702 | str_supported(dock2_needed)); | |
1703 | } else { | |
1704 | vdbg_printk(TPACPI_DBG_INIT, | |
1705 | "dock subdriver part 2 not required\n"); | |
1706 | dock2_needed = 0; | |
1707 | } | |
1708 | ||
1709 | return (dock2_needed)? 0 : 1; | |
1710 | } | |
1711 | ||
56b6aeb0 HMH |
1712 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
1713 | { | |
1714 | int docked = dock_docked(); | |
8d376cd6 | 1715 | int pci = ibm->acpi->hid && strstr(ibm->acpi->hid, IBM_PCI_HID); |
56b6aeb0 HMH |
1716 | |
1717 | if (event == 1 && !pci) /* 570 */ | |
8d376cd6 | 1718 | acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */ |
56b6aeb0 | 1719 | else if (event == 1 && pci) /* 570 */ |
8d376cd6 | 1720 | acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */ |
56b6aeb0 | 1721 | else if (event == 3 && docked) |
8d376cd6 | 1722 | acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */ |
56b6aeb0 | 1723 | else if (event == 3 && !docked) |
8d376cd6 | 1724 | acpi_bus_generate_event(ibm->acpi->device, event, 2); /* undock */ |
56b6aeb0 | 1725 | else if (event == 0 && docked) |
8d376cd6 | 1726 | acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */ |
56b6aeb0 HMH |
1727 | else { |
1728 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
1729 | event, _sta(dock_handle)); | |
8d376cd6 | 1730 | acpi_bus_generate_event(ibm->acpi->device, event, 0); /* unknown */ |
56b6aeb0 HMH |
1731 | } |
1732 | } | |
1733 | ||
78f81cc4 | 1734 | static int dock_read(char *p) |
1da177e4 LT |
1735 | { |
1736 | int len = 0; | |
1737 | int docked = dock_docked(); | |
1738 | ||
1739 | if (!dock_handle) | |
1740 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1741 | else if (!docked) | |
1742 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
1743 | else { | |
1744 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
1745 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
1746 | } | |
1747 | ||
1748 | return len; | |
1749 | } | |
1750 | ||
78f81cc4 | 1751 | static int dock_write(char *buf) |
1da177e4 LT |
1752 | { |
1753 | char *cmd; | |
1754 | ||
1755 | if (!dock_docked()) | |
78f81cc4 | 1756 | return -ENODEV; |
1da177e4 LT |
1757 | |
1758 | while ((cmd = next_cmd(&buf))) { | |
1759 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
1760 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
1761 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
1762 | return -EIO; |
1763 | } else if (strlencmp(cmd, "dock") == 0) { | |
1764 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
1765 | return -EIO; | |
1766 | } else | |
1767 | return -EINVAL; | |
1da177e4 | 1768 | } |
56b6aeb0 HMH |
1769 | |
1770 | return 0; | |
1da177e4 | 1771 | } |
56b6aeb0 | 1772 | |
85998248 | 1773 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
1774 | |
1775 | /************************************************************************* | |
1776 | * Bay subdriver | |
1777 | */ | |
1da177e4 | 1778 | |
85998248 | 1779 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
56b6aeb0 HMH |
1780 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
1781 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
1782 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
1783 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
1784 | ); /* A21e, R30, R31 */ | |
1785 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
1786 | "_EJ0", /* all others */ | |
1787 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
1788 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
1789 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
1790 | ); /* all others */ | |
1791 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
1792 | "_EJ0", /* 770x */ | |
1793 | ); /* all others */ | |
1794 | ||
a5763f22 | 1795 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 1796 | { |
fe08bc4b HMH |
1797 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
1798 | ||
8d376cd6 | 1799 | IBM_ACPIHANDLE_INIT(bay); |
5fba344c | 1800 | if (bay_handle) |
8d376cd6 HMH |
1801 | IBM_ACPIHANDLE_INIT(bay_ej); |
1802 | IBM_ACPIHANDLE_INIT(bay2); | |
5fba344c | 1803 | if (bay2_handle) |
8d376cd6 | 1804 | IBM_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 1805 | |
d8fd94d9 HMH |
1806 | tp_features.bay_status = bay_handle && |
1807 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
1808 | tp_features.bay_status2 = bay2_handle && | |
1809 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 1810 | |
d8fd94d9 HMH |
1811 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
1812 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
1813 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
1814 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 1815 | |
fe08bc4b HMH |
1816 | vdbg_printk(TPACPI_DBG_INIT, |
1817 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
1818 | str_supported(tp_features.bay_status), |
1819 | str_supported(tp_features.bay_eject), | |
1820 | str_supported(tp_features.bay_status2), | |
1821 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 1822 | |
d8fd94d9 HMH |
1823 | return (tp_features.bay_status || tp_features.bay_eject || |
1824 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
1825 | } |
1826 | ||
56b6aeb0 HMH |
1827 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
1828 | { | |
8d376cd6 | 1829 | acpi_bus_generate_event(ibm->acpi->device, event, 0); |
56b6aeb0 HMH |
1830 | } |
1831 | ||
78f81cc4 BD |
1832 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
1833 | ||
1834 | static int bay_read(char *p) | |
1da177e4 LT |
1835 | { |
1836 | int len = 0; | |
78f81cc4 BD |
1837 | int occupied = bay_occupied(bay); |
1838 | int occupied2 = bay_occupied(bay2); | |
1839 | int eject, eject2; | |
1840 | ||
d8fd94d9 HMH |
1841 | len += sprintf(p + len, "status:\t\t%s\n", |
1842 | tp_features.bay_status ? | |
1843 | (occupied ? "occupied" : "unoccupied") : | |
1844 | "not supported"); | |
1845 | if (tp_features.bay_status2) | |
78f81cc4 BD |
1846 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
1847 | "occupied" : "unoccupied"); | |
1848 | ||
d8fd94d9 HMH |
1849 | eject = tp_features.bay_eject && occupied; |
1850 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
1851 | |
1852 | if (eject && eject2) | |
1853 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
1854 | else if (eject) | |
1da177e4 | 1855 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
1856 | else if (eject2) |
1857 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
1858 | |
1859 | return len; | |
1860 | } | |
1861 | ||
78f81cc4 | 1862 | static int bay_write(char *buf) |
1da177e4 LT |
1863 | { |
1864 | char *cmd; | |
1865 | ||
d8fd94d9 | 1866 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
1867 | return -ENODEV; |
1868 | ||
1da177e4 | 1869 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 1870 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
1871 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
1872 | return -EIO; | |
d8fd94d9 | 1873 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
1874 | strlencmp(cmd, "eject2") == 0) { |
1875 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
1876 | return -EIO; |
1877 | } else | |
1878 | return -EINVAL; | |
1879 | } | |
1880 | ||
1881 | return 0; | |
78f81cc4 | 1882 | } |
a5763f22 | 1883 | |
8d376cd6 HMH |
1884 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
1885 | .notify = bay_notify, | |
1886 | .handle = &bay_handle, | |
1887 | .type = ACPI_SYSTEM_NOTIFY, | |
1888 | }; | |
1889 | ||
a5763f22 HMH |
1890 | static struct ibm_struct bay_driver_data = { |
1891 | .name = "bay", | |
1892 | .read = bay_read, | |
1893 | .write = bay_write, | |
8d376cd6 | 1894 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
1895 | }; |
1896 | ||
85998248 | 1897 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 1898 | |
56b6aeb0 HMH |
1899 | /************************************************************************* |
1900 | * CMOS subdriver | |
1901 | */ | |
1902 | ||
b616004c HMH |
1903 | /* sysfs cmos_command -------------------------------------------------- */ |
1904 | static ssize_t cmos_command_store(struct device *dev, | |
1905 | struct device_attribute *attr, | |
1906 | const char *buf, size_t count) | |
1907 | { | |
1908 | unsigned long cmos_cmd; | |
1909 | int res; | |
1910 | ||
1911 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
1912 | return -EINVAL; | |
1913 | ||
1914 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
1915 | return (res)? res : count; | |
1916 | } | |
1917 | ||
1918 | static struct device_attribute dev_attr_cmos_command = | |
1919 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
1920 | ||
1921 | /* --------------------------------------------------------------------- */ | |
1922 | ||
a5763f22 | 1923 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 1924 | { |
b616004c HMH |
1925 | int res; |
1926 | ||
fe08bc4b HMH |
1927 | vdbg_printk(TPACPI_DBG_INIT, |
1928 | "initializing cmos commands subdriver\n"); | |
1929 | ||
8d376cd6 | 1930 | IBM_ACPIHANDLE_INIT(cmos); |
5fba344c | 1931 | |
fe08bc4b HMH |
1932 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
1933 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
1934 | |
1935 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
1936 | if (res) | |
1937 | return res; | |
1938 | ||
5fba344c HMH |
1939 | return (cmos_handle)? 0 : 1; |
1940 | } | |
1941 | ||
b616004c HMH |
1942 | static void cmos_exit(void) |
1943 | { | |
1944 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
1945 | } | |
1946 | ||
78f81cc4 | 1947 | static int cmos_read(char *p) |
1da177e4 LT |
1948 | { |
1949 | int len = 0; | |
1950 | ||
78f81cc4 BD |
1951 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1952 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
1953 | if (!cmos_handle) |
1954 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1955 | else { | |
1956 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 1957 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
1958 | } |
1959 | ||
1960 | return len; | |
1961 | } | |
1962 | ||
78f81cc4 | 1963 | static int cmos_write(char *buf) |
1da177e4 LT |
1964 | { |
1965 | char *cmd; | |
c9bea99c | 1966 | int cmos_cmd, res; |
1da177e4 LT |
1967 | |
1968 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
1969 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
1970 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
1971 | /* cmos_cmd set */ |
1972 | } else | |
1973 | return -EINVAL; | |
1974 | ||
c9bea99c HMH |
1975 | res = issue_thinkpad_cmos_command(cmos_cmd); |
1976 | if (res) | |
1977 | return res; | |
1da177e4 LT |
1978 | } |
1979 | ||
1980 | return 0; | |
78f81cc4 BD |
1981 | } |
1982 | ||
a5763f22 HMH |
1983 | static struct ibm_struct cmos_driver_data = { |
1984 | .name = "cmos", | |
1985 | .read = cmos_read, | |
1986 | .write = cmos_write, | |
b616004c | 1987 | .exit = cmos_exit, |
a5763f22 | 1988 | }; |
56b6aeb0 HMH |
1989 | |
1990 | /************************************************************************* | |
1991 | * LED subdriver | |
1992 | */ | |
1993 | ||
9a8e1738 | 1994 | static enum led_access_mode led_supported; |
78f81cc4 | 1995 | |
56b6aeb0 HMH |
1996 | IBM_HANDLE(led, ec, "SLED", /* 570 */ |
1997 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
1998 | "LED", /* all others */ | |
1999 | ); /* R30, R31 */ | |
2000 | ||
a5763f22 | 2001 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2002 | { |
fe08bc4b HMH |
2003 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
2004 | ||
8d376cd6 | 2005 | IBM_ACPIHANDLE_INIT(led); |
5fba344c | 2006 | |
78f81cc4 BD |
2007 | if (!led_handle) |
2008 | /* led not supported on R30, R31 */ | |
efa27145 | 2009 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
2010 | else if (strlencmp(led_path, "SLED") == 0) |
2011 | /* 570 */ | |
efa27145 | 2012 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
2013 | else if (strlencmp(led_path, "SYSL") == 0) |
2014 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 2015 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
2016 | else |
2017 | /* all others */ | |
efa27145 | 2018 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 2019 | |
fe08bc4b HMH |
2020 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
2021 | str_supported(led_supported), led_supported); | |
2022 | ||
5fba344c | 2023 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
2024 | } |
2025 | ||
2026 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
2027 | ||
2028 | static int led_read(char *p) | |
1da177e4 LT |
2029 | { |
2030 | int len = 0; | |
2031 | ||
78f81cc4 BD |
2032 | if (!led_supported) { |
2033 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2034 | return len; | |
2035 | } | |
2036 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2037 | ||
efa27145 | 2038 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2039 | /* 570 */ |
2040 | int i, status; | |
2041 | for (i = 0; i < 8; i++) { | |
2042 | if (!acpi_evalf(ec_handle, | |
2043 | &status, "GLED", "dd", 1 << i)) | |
2044 | return -EIO; | |
2045 | len += sprintf(p + len, "%d:\t\t%s\n", | |
2046 | i, led_status(status)); | |
2047 | } | |
2048 | } | |
2049 | ||
1da177e4 | 2050 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 2051 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
2052 | |
2053 | return len; | |
2054 | } | |
2055 | ||
78f81cc4 BD |
2056 | /* off, on, blink */ |
2057 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
2058 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
2059 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
2060 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
2061 | ||
78f81cc4 | 2062 | static int led_write(char *buf) |
1da177e4 LT |
2063 | { |
2064 | char *cmd; | |
78f81cc4 BD |
2065 | int led, ind, ret; |
2066 | ||
2067 | if (!led_supported) | |
2068 | return -ENODEV; | |
1da177e4 LT |
2069 | |
2070 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 2071 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
2072 | return -EINVAL; |
2073 | ||
78f81cc4 BD |
2074 | if (strstr(cmd, "off")) { |
2075 | ind = 0; | |
1da177e4 | 2076 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
2077 | ind = 1; |
2078 | } else if (strstr(cmd, "blink")) { | |
2079 | ind = 2; | |
1da177e4 LT |
2080 | } else |
2081 | return -EINVAL; | |
78f81cc4 | 2082 | |
efa27145 | 2083 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2084 | /* 570 */ |
2085 | led = 1 << led; | |
1da177e4 | 2086 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 2087 | led, led_sled_arg1[ind])) |
1da177e4 | 2088 | return -EIO; |
efa27145 | 2089 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
2090 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
2091 | led = 1 << led; | |
efa27145 | 2092 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
2093 | if (ret >= 0) |
2094 | ret = | |
efa27145 | 2095 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 2096 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
2097 | if (ret >= 0) |
2098 | ret = | |
efa27145 | 2099 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 2100 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
2101 | if (ret < 0) |
2102 | return ret; | |
2103 | } else { | |
2104 | /* all others */ | |
2105 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
2106 | led, led_led_arg1[ind])) | |
1da177e4 | 2107 | return -EIO; |
78f81cc4 BD |
2108 | } |
2109 | } | |
2110 | ||
2111 | return 0; | |
2112 | } | |
2113 | ||
a5763f22 HMH |
2114 | static struct ibm_struct led_driver_data = { |
2115 | .name = "led", | |
2116 | .read = led_read, | |
2117 | .write = led_write, | |
2118 | }; | |
2119 | ||
56b6aeb0 HMH |
2120 | /************************************************************************* |
2121 | * Beep subdriver | |
2122 | */ | |
2123 | ||
2124 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
2125 | ||
a5763f22 | 2126 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 2127 | { |
fe08bc4b HMH |
2128 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
2129 | ||
8d376cd6 | 2130 | IBM_ACPIHANDLE_INIT(beep); |
5fba344c | 2131 | |
fe08bc4b HMH |
2132 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
2133 | str_supported(beep_handle != NULL)); | |
2134 | ||
5fba344c HMH |
2135 | return (beep_handle)? 0 : 1; |
2136 | } | |
2137 | ||
78f81cc4 BD |
2138 | static int beep_read(char *p) |
2139 | { | |
2140 | int len = 0; | |
2141 | ||
2142 | if (!beep_handle) | |
2143 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2144 | else { | |
2145 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2146 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
2147 | } | |
2148 | ||
2149 | return len; | |
2150 | } | |
2151 | ||
2152 | static int beep_write(char *buf) | |
2153 | { | |
2154 | char *cmd; | |
2155 | int beep_cmd; | |
2156 | ||
2157 | if (!beep_handle) | |
2158 | return -ENODEV; | |
2159 | ||
2160 | while ((cmd = next_cmd(&buf))) { | |
2161 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
2162 | beep_cmd >= 0 && beep_cmd <= 17) { | |
2163 | /* beep_cmd set */ | |
2164 | } else | |
2165 | return -EINVAL; | |
2166 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
2167 | return -EIO; | |
2168 | } | |
2169 | ||
2170 | return 0; | |
2171 | } | |
2172 | ||
a5763f22 HMH |
2173 | static struct ibm_struct beep_driver_data = { |
2174 | .name = "beep", | |
2175 | .read = beep_read, | |
2176 | .write = beep_write, | |
2177 | }; | |
2178 | ||
56b6aeb0 HMH |
2179 | /************************************************************************* |
2180 | * Thermal subdriver | |
2181 | */ | |
78f81cc4 | 2182 | |
a26f878a | 2183 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 2184 | |
2c37aa4e HMH |
2185 | /* sysfs temp##_input -------------------------------------------------- */ |
2186 | ||
2187 | static ssize_t thermal_temp_input_show(struct device *dev, | |
2188 | struct device_attribute *attr, | |
2189 | char *buf) | |
2190 | { | |
2191 | struct sensor_device_attribute *sensor_attr = | |
2192 | to_sensor_dev_attr(attr); | |
2193 | int idx = sensor_attr->index; | |
2194 | s32 value; | |
2195 | int res; | |
2196 | ||
2197 | res = thermal_get_sensor(idx, &value); | |
2198 | if (res) | |
2199 | return res; | |
2200 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
2201 | return -ENXIO; | |
2202 | ||
2203 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
2204 | } | |
2205 | ||
2206 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
2207 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB) | |
2208 | ||
2209 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
2210 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
2211 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
2212 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
2213 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
2214 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
2215 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
2216 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
2217 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
2218 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
2219 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
2220 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
2221 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
2222 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
2223 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
2224 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
2225 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
2226 | }; | |
2227 | ||
2228 | #define THERMAL_ATTRS(X) \ | |
2229 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
2230 | ||
2231 | static struct attribute *thermal_temp_input_attr[] = { | |
2232 | THERMAL_ATTRS(8), | |
2233 | THERMAL_ATTRS(9), | |
2234 | THERMAL_ATTRS(10), | |
2235 | THERMAL_ATTRS(11), | |
2236 | THERMAL_ATTRS(12), | |
2237 | THERMAL_ATTRS(13), | |
2238 | THERMAL_ATTRS(14), | |
2239 | THERMAL_ATTRS(15), | |
2240 | THERMAL_ATTRS(0), | |
2241 | THERMAL_ATTRS(1), | |
2242 | THERMAL_ATTRS(2), | |
2243 | THERMAL_ATTRS(3), | |
2244 | THERMAL_ATTRS(4), | |
2245 | THERMAL_ATTRS(5), | |
2246 | THERMAL_ATTRS(6), | |
2247 | THERMAL_ATTRS(7), | |
2248 | NULL | |
2249 | }; | |
2250 | ||
2251 | static const struct attribute_group thermal_temp_input16_group = { | |
2252 | .attrs = thermal_temp_input_attr | |
2253 | }; | |
2254 | ||
2255 | static const struct attribute_group thermal_temp_input8_group = { | |
2256 | .attrs = &thermal_temp_input_attr[8] | |
2257 | }; | |
2258 | ||
2259 | #undef THERMAL_SENSOR_ATTR_TEMP | |
2260 | #undef THERMAL_ATTRS | |
2261 | ||
2262 | /* --------------------------------------------------------------------- */ | |
2263 | ||
a5763f22 | 2264 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2265 | { |
60eb0b35 HMH |
2266 | u8 t, ta1, ta2; |
2267 | int i; | |
5fba344c | 2268 | int acpi_tmp7; |
2c37aa4e | 2269 | int res; |
5fba344c | 2270 | |
fe08bc4b HMH |
2271 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
2272 | ||
5fba344c | 2273 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 HMH |
2274 | |
2275 | if (ibm_thinkpad_ec_found && experimental) { | |
2276 | /* | |
2277 | * Direct EC access mode: sensors at registers | |
2278 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
2279 | * non-implemented, thermal sensors return 0x80 when | |
2280 | * not available | |
2281 | */ | |
78f81cc4 | 2282 | |
60eb0b35 HMH |
2283 | ta1 = ta2 = 0; |
2284 | for (i = 0; i < 8; i++) { | |
04cc862c | 2285 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
2286 | ta1 |= t; |
2287 | } else { | |
2288 | ta1 = 0; | |
2289 | break; | |
2290 | } | |
04cc862c | 2291 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
2292 | ta2 |= t; |
2293 | } else { | |
2294 | ta1 = 0; | |
2295 | break; | |
2296 | } | |
2297 | } | |
2298 | if (ta1 == 0) { | |
2299 | /* This is sheer paranoia, but we handle it anyway */ | |
2300 | if (acpi_tmp7) { | |
2301 | printk(IBM_ERR | |
2302 | "ThinkPad ACPI EC access misbehaving, " | |
2303 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 2304 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 HMH |
2305 | } else { |
2306 | printk(IBM_ERR | |
2307 | "ThinkPad ACPI EC access misbehaving, " | |
2308 | "disabling thermal sensors access\n"); | |
efa27145 | 2309 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
2310 | } |
2311 | } else { | |
2312 | thermal_read_mode = | |
2313 | (ta2 != 0) ? | |
efa27145 | 2314 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
2315 | } |
2316 | } else if (acpi_tmp7) { | |
a26f878a HMH |
2317 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
2318 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2319 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
2320 | } else { |
2321 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 2322 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
2323 | } |
2324 | } else { | |
2325 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 2326 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 2327 | } |
78f81cc4 | 2328 | |
fe08bc4b HMH |
2329 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
2330 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
2331 | thermal_read_mode); | |
2332 | ||
2c37aa4e HMH |
2333 | switch(thermal_read_mode) { |
2334 | case TPACPI_THERMAL_TPEC_16: | |
2335 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2336 | &thermal_temp_input16_group); | |
2337 | if (res) | |
2338 | return res; | |
2339 | break; | |
2340 | case TPACPI_THERMAL_TPEC_8: | |
2341 | case TPACPI_THERMAL_ACPI_TMP07: | |
2342 | case TPACPI_THERMAL_ACPI_UPDT: | |
2343 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2344 | &thermal_temp_input8_group); | |
2345 | if (res) | |
2346 | return res; | |
2347 | break; | |
2348 | case TPACPI_THERMAL_NONE: | |
2349 | default: | |
2350 | return 1; | |
2351 | } | |
2352 | ||
2353 | return 0; | |
2354 | } | |
2355 | ||
2356 | static void thermal_exit(void) | |
2357 | { | |
2358 | switch(thermal_read_mode) { | |
2359 | case TPACPI_THERMAL_TPEC_16: | |
2360 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2361 | &thermal_temp_input16_group); | |
2362 | break; | |
2363 | case TPACPI_THERMAL_TPEC_8: | |
2364 | case TPACPI_THERMAL_ACPI_TMP07: | |
2365 | case TPACPI_THERMAL_ACPI_UPDT: | |
2366 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2367 | &thermal_temp_input16_group); | |
2368 | break; | |
2369 | case TPACPI_THERMAL_NONE: | |
2370 | default: | |
2371 | break; | |
2372 | } | |
78f81cc4 BD |
2373 | } |
2374 | ||
04cc862c HMH |
2375 | /* idx is zero-based */ |
2376 | static int thermal_get_sensor(int idx, s32 *value) | |
78f81cc4 | 2377 | { |
04cc862c | 2378 | int t; |
60eb0b35 | 2379 | s8 tmp; |
04cc862c | 2380 | char tmpi[5]; |
78f81cc4 | 2381 | |
04cc862c | 2382 | t = TP_EC_THERMAL_TMP0; |
78f81cc4 | 2383 | |
a26f878a | 2384 | switch (thermal_read_mode) { |
efa27145 HMH |
2385 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 |
2386 | case TPACPI_THERMAL_TPEC_16: | |
04cc862c HMH |
2387 | if (idx >= 8 && idx <= 15) { |
2388 | t = TP_EC_THERMAL_TMP8; | |
2389 | idx -= 8; | |
60eb0b35 HMH |
2390 | } |
2391 | /* fallthrough */ | |
2392 | #endif | |
efa27145 | 2393 | case TPACPI_THERMAL_TPEC_8: |
04cc862c HMH |
2394 | if (idx <= 7) { |
2395 | if (!acpi_ec_read(t + idx, &tmp)) | |
78f81cc4 | 2396 | return -EIO; |
04cc862c HMH |
2397 | *value = tmp * 1000; |
2398 | return 0; | |
60eb0b35 | 2399 | } |
04cc862c | 2400 | break; |
78f81cc4 | 2401 | |
efa27145 | 2402 | case TPACPI_THERMAL_ACPI_UPDT: |
04cc862c HMH |
2403 | if (idx <= 7) { |
2404 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
2405 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
2406 | return -EIO; | |
78f81cc4 BD |
2407 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
2408 | return -EIO; | |
04cc862c HMH |
2409 | *value = (t - 2732) * 100; |
2410 | return 0; | |
78f81cc4 | 2411 | } |
04cc862c | 2412 | break; |
78f81cc4 | 2413 | |
efa27145 | 2414 | case TPACPI_THERMAL_ACPI_TMP07: |
04cc862c HMH |
2415 | if (idx <= 7) { |
2416 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
78f81cc4 BD |
2417 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
2418 | return -EIO; | |
04cc862c HMH |
2419 | *value = t * 1000; |
2420 | return 0; | |
78f81cc4 | 2421 | } |
04cc862c | 2422 | break; |
78f81cc4 | 2423 | |
efa27145 | 2424 | case TPACPI_THERMAL_NONE: |
a26f878a | 2425 | default: |
04cc862c HMH |
2426 | return -ENOSYS; |
2427 | } | |
2428 | ||
2429 | return -EINVAL; | |
2430 | } | |
2431 | ||
2432 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
2433 | { | |
2434 | int res, i; | |
2435 | int n; | |
2436 | ||
2437 | n = 8; | |
2438 | i = 0; | |
2439 | ||
2440 | if (!s) | |
2441 | return -EINVAL; | |
2442 | ||
2443 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
2444 | n = 16; | |
2445 | ||
2446 | for(i = 0 ; i < n; i++) { | |
2447 | res = thermal_get_sensor(i, &s->temp[i]); | |
2448 | if (res) | |
2449 | return res; | |
78f81cc4 | 2450 | } |
04cc862c HMH |
2451 | |
2452 | return n; | |
a26f878a HMH |
2453 | } |
2454 | ||
2455 | static int thermal_read(char *p) | |
2456 | { | |
2457 | int len = 0; | |
2458 | int n, i; | |
2459 | struct ibm_thermal_sensors_struct t; | |
2460 | ||
2461 | n = thermal_get_sensors(&t); | |
2462 | if (unlikely(n < 0)) | |
2463 | return n; | |
2464 | ||
2465 | len += sprintf(p + len, "temperatures:\t"); | |
2466 | ||
2467 | if (n > 0) { | |
2468 | for (i = 0; i < (n - 1); i++) | |
2469 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
2470 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
2471 | } else | |
2472 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
2473 | |
2474 | return len; | |
2475 | } | |
2476 | ||
a5763f22 HMH |
2477 | static struct ibm_struct thermal_driver_data = { |
2478 | .name = "thermal", | |
2479 | .read = thermal_read, | |
2c37aa4e | 2480 | .exit = thermal_exit, |
a5763f22 HMH |
2481 | }; |
2482 | ||
56b6aeb0 HMH |
2483 | /************************************************************************* |
2484 | * EC Dump subdriver | |
2485 | */ | |
2486 | ||
78f81cc4 BD |
2487 | static u8 ecdump_regs[256]; |
2488 | ||
2489 | static int ecdump_read(char *p) | |
2490 | { | |
2491 | int len = 0; | |
2492 | int i, j; | |
2493 | u8 v; | |
2494 | ||
2495 | len += sprintf(p + len, "EC " | |
2496 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
2497 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
2498 | for (i = 0; i < 256; i += 16) { | |
2499 | len += sprintf(p + len, "EC 0x%02x:", i); | |
2500 | for (j = 0; j < 16; j++) { | |
2501 | if (!acpi_ec_read(i + j, &v)) | |
2502 | break; | |
2503 | if (v != ecdump_regs[i + j]) | |
2504 | len += sprintf(p + len, " *%02x", v); | |
2505 | else | |
2506 | len += sprintf(p + len, " %02x", v); | |
2507 | ecdump_regs[i + j] = v; | |
2508 | } | |
2509 | len += sprintf(p + len, "\n"); | |
2510 | if (j != 16) | |
2511 | break; | |
2512 | } | |
2513 | ||
2514 | /* These are way too dangerous to advertise openly... */ | |
2515 | #if 0 | |
2516 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
2517 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
2518 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
2519 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
2520 | #endif | |
2521 | return len; | |
2522 | } | |
2523 | ||
2524 | static int ecdump_write(char *buf) | |
2525 | { | |
2526 | char *cmd; | |
2527 | int i, v; | |
2528 | ||
2529 | while ((cmd = next_cmd(&buf))) { | |
2530 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
2531 | /* i and v set */ | |
2532 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
2533 | /* i and v set */ | |
2534 | } else | |
2535 | return -EINVAL; | |
2536 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
2537 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
2538 | return -EIO; |
2539 | } else | |
2540 | return -EINVAL; | |
2541 | } | |
2542 | ||
2543 | return 0; | |
78f81cc4 BD |
2544 | } |
2545 | ||
a5763f22 HMH |
2546 | static struct ibm_struct ecdump_driver_data = { |
2547 | .name = "ecdump", | |
2548 | .read = ecdump_read, | |
2549 | .write = ecdump_write, | |
92641177 | 2550 | .flags.experimental = 1, |
a5763f22 HMH |
2551 | }; |
2552 | ||
56b6aeb0 HMH |
2553 | /************************************************************************* |
2554 | * Backlight/brightness subdriver | |
2555 | */ | |
2556 | ||
2557 | static struct backlight_device *ibm_backlight_device = NULL; | |
2558 | ||
2559 | static struct backlight_ops ibm_backlight_data = { | |
2560 | .get_brightness = brightness_get, | |
2561 | .update_status = brightness_update_status, | |
2562 | }; | |
2563 | ||
a5763f22 | 2564 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
2565 | { |
2566 | int b; | |
2567 | ||
fe08bc4b HMH |
2568 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
2569 | ||
56b6aeb0 HMH |
2570 | b = brightness_get(NULL); |
2571 | if (b < 0) | |
2572 | return b; | |
2573 | ||
7d5a015e HMH |
2574 | ibm_backlight_device = backlight_device_register( |
2575 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
2576 | &ibm_backlight_data); | |
56b6aeb0 HMH |
2577 | if (IS_ERR(ibm_backlight_device)) { |
2578 | printk(IBM_ERR "Could not register backlight device\n"); | |
2579 | return PTR_ERR(ibm_backlight_device); | |
2580 | } | |
fe08bc4b | 2581 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 HMH |
2582 | |
2583 | ibm_backlight_device->props.max_brightness = 7; | |
2584 | ibm_backlight_device->props.brightness = b; | |
2585 | backlight_update_status(ibm_backlight_device); | |
2586 | ||
2587 | return 0; | |
2588 | } | |
2589 | ||
2590 | static void brightness_exit(void) | |
2591 | { | |
2592 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
2593 | vdbg_printk(TPACPI_DBG_EXIT, |
2594 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
2595 | backlight_device_unregister(ibm_backlight_device); |
2596 | ibm_backlight_device = NULL; | |
2597 | } | |
2598 | } | |
2599 | ||
2600 | static int brightness_update_status(struct backlight_device *bd) | |
2601 | { | |
2602 | return brightness_set( | |
2603 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
2604 | bd->props.power == FB_BLANK_UNBLANK) ? | |
2605 | bd->props.brightness : 0); | |
2606 | } | |
2607 | ||
8acb0250 HM |
2608 | static int brightness_get(struct backlight_device *bd) |
2609 | { | |
8d297264 HMH |
2610 | u8 level; |
2611 | if (!acpi_ec_read(brightness_offset, &level)) | |
2612 | return -EIO; | |
8acb0250 | 2613 | |
8d297264 | 2614 | level &= 0x7; |
fb87a811 | 2615 | |
8d297264 | 2616 | return level; |
8acb0250 HM |
2617 | } |
2618 | ||
8acb0250 | 2619 | static int brightness_set(int value) |
1da177e4 | 2620 | { |
78f81cc4 | 2621 | int cmos_cmd, inc, i; |
8acb0250 HM |
2622 | int current_value = brightness_get(NULL); |
2623 | ||
2624 | value &= 7; | |
2625 | ||
56b6aeb0 | 2626 | cmos_cmd = value > current_value ? TP_CMOS_BRIGHTNESS_UP : TP_CMOS_BRIGHTNESS_DOWN; |
8acb0250 HM |
2627 | inc = value > current_value ? 1 : -1; |
2628 | for (i = current_value; i != value; i += inc) { | |
c9bea99c | 2629 | if (issue_thinkpad_cmos_command(cmos_cmd)) |
8acb0250 HM |
2630 | return -EIO; |
2631 | if (!acpi_ec_write(brightness_offset, i + inc)) | |
2632 | return -EIO; | |
2633 | } | |
2634 | ||
2635 | return 0; | |
2636 | } | |
2637 | ||
56b6aeb0 HMH |
2638 | static int brightness_read(char *p) |
2639 | { | |
2640 | int len = 0; | |
2641 | int level; | |
2642 | ||
2643 | if ((level = brightness_get(NULL)) < 0) { | |
2644 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
2645 | } else { | |
2646 | len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); | |
2647 | len += sprintf(p + len, "commands:\tup, down\n"); | |
2648 | len += sprintf(p + len, "commands:\tlevel <level>" | |
2649 | " (<level> is 0-7)\n"); | |
2650 | } | |
2651 | ||
2652 | return len; | |
2653 | } | |
2654 | ||
8acb0250 HM |
2655 | static int brightness_write(char *buf) |
2656 | { | |
2657 | int level; | |
78f81cc4 | 2658 | int new_level; |
1da177e4 | 2659 | char *cmd; |
1da177e4 LT |
2660 | |
2661 | while ((cmd = next_cmd(&buf))) { | |
8acb0250 HM |
2662 | if ((level = brightness_get(NULL)) < 0) |
2663 | return level; | |
78f81cc4 BD |
2664 | level &= 7; |
2665 | ||
2666 | if (strlencmp(cmd, "up") == 0) { | |
2667 | new_level = level == 7 ? 7 : level + 1; | |
2668 | } else if (strlencmp(cmd, "down") == 0) { | |
2669 | new_level = level == 0 ? 0 : level - 1; | |
2670 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
2671 | new_level >= 0 && new_level <= 7) { | |
2672 | /* new_level set */ | |
2673 | } else | |
2674 | return -EINVAL; | |
2675 | ||
8acb0250 | 2676 | brightness_set(new_level); |
78f81cc4 BD |
2677 | } |
2678 | ||
2679 | return 0; | |
2680 | } | |
2681 | ||
a5763f22 HMH |
2682 | static struct ibm_struct brightness_driver_data = { |
2683 | .name = "brightness", | |
2684 | .read = brightness_read, | |
2685 | .write = brightness_write, | |
2686 | .exit = brightness_exit, | |
2687 | }; | |
2688 | ||
56b6aeb0 HMH |
2689 | /************************************************************************* |
2690 | * Volume subdriver | |
2691 | */ | |
fb87a811 | 2692 | |
78f81cc4 BD |
2693 | static int volume_read(char *p) |
2694 | { | |
2695 | int len = 0; | |
2696 | u8 level; | |
2697 | ||
2698 | if (!acpi_ec_read(volume_offset, &level)) { | |
2699 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
2700 | } else { | |
2701 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
2702 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
2703 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
2704 | len += sprintf(p + len, "commands:\tlevel <level>" | |
2705 | " (<level> is 0-15)\n"); | |
2706 | } | |
2707 | ||
2708 | return len; | |
2709 | } | |
2710 | ||
78f81cc4 BD |
2711 | static int volume_write(char *buf) |
2712 | { | |
2713 | int cmos_cmd, inc, i; | |
2714 | u8 level, mute; | |
2715 | int new_level, new_mute; | |
2716 | char *cmd; | |
2717 | ||
2718 | while ((cmd = next_cmd(&buf))) { | |
2719 | if (!acpi_ec_read(volume_offset, &level)) | |
2720 | return -EIO; | |
2721 | new_mute = mute = level & 0x40; | |
2722 | new_level = level = level & 0xf; | |
2723 | ||
2724 | if (strlencmp(cmd, "up") == 0) { | |
2725 | if (mute) | |
2726 | new_mute = 0; | |
2727 | else | |
2728 | new_level = level == 15 ? 15 : level + 1; | |
2729 | } else if (strlencmp(cmd, "down") == 0) { | |
2730 | if (mute) | |
2731 | new_mute = 0; | |
2732 | else | |
2733 | new_level = level == 0 ? 0 : level - 1; | |
2734 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
2735 | new_level >= 0 && new_level <= 15) { | |
2736 | /* new_level set */ | |
2737 | } else if (strlencmp(cmd, "mute") == 0) { | |
2738 | new_mute = 0x40; | |
1da177e4 LT |
2739 | } else |
2740 | return -EINVAL; | |
2741 | ||
78f81cc4 | 2742 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 2743 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
2744 | inc = new_level > level ? 1 : -1; |
2745 | ||
c9bea99c | 2746 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
2747 | !acpi_ec_write(volume_offset, level))) |
2748 | return -EIO; | |
2749 | ||
2750 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 2751 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
2752 | !acpi_ec_write(volume_offset, i + inc)) |
2753 | return -EIO; | |
2754 | ||
c9bea99c | 2755 | if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
2756 | !acpi_ec_write(volume_offset, |
2757 | new_level + mute))) | |
2758 | return -EIO; | |
2759 | } | |
2760 | ||
2761 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 2762 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 | 2763 | |
c9bea99c | 2764 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
2765 | !acpi_ec_write(volume_offset, level + new_mute)) |
2766 | return -EIO; | |
2767 | } | |
2768 | } | |
2769 | ||
2770 | return 0; | |
2771 | } | |
2772 | ||
a5763f22 HMH |
2773 | static struct ibm_struct volume_driver_data = { |
2774 | .name = "volume", | |
2775 | .read = volume_read, | |
2776 | .write = volume_write, | |
2777 | }; | |
56b6aeb0 HMH |
2778 | |
2779 | /************************************************************************* | |
2780 | * Fan subdriver | |
2781 | */ | |
2782 | ||
2783 | /* | |
2784 | * FAN ACCESS MODES | |
2785 | * | |
efa27145 | 2786 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
2787 | * ACPI GFAN method: returns fan level |
2788 | * | |
efa27145 | 2789 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 2790 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 2791 | * |
efa27145 | 2792 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
2793 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
2794 | * | |
f51d1a39 HMH |
2795 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
2796 | * it for writing. | |
56b6aeb0 | 2797 | * |
efa27145 | 2798 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
2799 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
2800 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
2801 | * |
2802 | * Fan speed changes of any sort (including those caused by the | |
2803 | * disengaged mode) are usually done slowly by the firmware as the | |
2804 | * maximum ammount of fan duty cycle change per second seems to be | |
2805 | * limited. | |
2806 | * | |
2807 | * Reading is not available if GFAN exists. | |
2808 | * Writing is not available if SFAN exists. | |
2809 | * | |
2810 | * Bits | |
2811 | * 7 automatic mode engaged; | |
2812 | * (default operation mode of the ThinkPad) | |
2813 | * fan level is ignored in this mode. | |
f51d1a39 | 2814 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 2815 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
2816 | * the tachometer while the fan controller ramps up |
2817 | * the speed (which can take up to a few *minutes*). | |
2818 | * Speeds up fan to 100% duty-cycle, which is far above | |
2819 | * the standard RPM levels. It is not impossible that | |
2820 | * it could cause hardware damage. | |
56b6aeb0 HMH |
2821 | * 5-3 unused in some models. Extra bits for fan level |
2822 | * in others, but still useless as all values above | |
2823 | * 7 map to the same speed as level 7 in these models. | |
2824 | * 2-0 fan level (0..7 usually) | |
2825 | * 0x00 = stop | |
2826 | * 0x07 = max (set when temperatures critical) | |
2827 | * Some ThinkPads may have other levels, see | |
efa27145 | 2828 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
2829 | * |
2830 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
2831 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
2832 | * does so, its initial value is meaningless (0x07). | |
2833 | * | |
2834 | * For firmware bugs, refer to: | |
2835 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
2836 | * | |
2837 | * ---- | |
2838 | * | |
2839 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
2840 | * Main fan tachometer reading (in RPM) | |
2841 | * | |
2842 | * This register is present on all ThinkPads with a new-style EC, and | |
2843 | * it is known not to be present on the A21m/e, and T22, as there is | |
2844 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
2845 | * ThinkPads from this same time period (and earlier) probably lack the | |
2846 | * tachometer as well. | |
2847 | * | |
2848 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
2849 | * was never fixed by IBM to report the EC firmware version string | |
2850 | * probably support the tachometer (like the early X models), so | |
2851 | * detecting it is quite hard. We need more data to know for sure. | |
2852 | * | |
2853 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
2854 | * might result. | |
2855 | * | |
f51d1a39 HMH |
2856 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
2857 | * mode. | |
56b6aeb0 HMH |
2858 | * |
2859 | * For firmware bugs, refer to: | |
2860 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
2861 | * | |
efa27145 | 2862 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
2863 | * ThinkPad X31, X40, X41. Not available in the X60. |
2864 | * | |
2865 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
2866 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
2867 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
2868 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
2869 | * | |
2870 | * The speeds are stored on handles | |
2871 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
2872 | * | |
2873 | * There are three default speed sets, acessible as handles: | |
2874 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
2875 | * | |
2876 | * ACPI DSDT switches which set is in use depending on various | |
2877 | * factors. | |
2878 | * | |
efa27145 | 2879 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
2880 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
2881 | * but the ACPI tables just mention level 7. | |
2882 | */ | |
2883 | ||
69ba91cb HMH |
2884 | static enum fan_status_access_mode fan_status_access_mode; |
2885 | static enum fan_control_access_mode fan_control_access_mode; | |
2886 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 2887 | |
778b4d74 | 2888 | static u8 fan_control_initial_status; |
fe98a52c | 2889 | static u8 fan_control_desired_level; |
778b4d74 | 2890 | |
25c68a33 | 2891 | static void fan_watchdog_fire(struct work_struct *ignored); |
16663a87 | 2892 | static int fan_watchdog_maxinterval; |
25c68a33 | 2893 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 2894 | |
56b6aeb0 HMH |
2895 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
2896 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
2897 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
2898 | ); /* all others */ | |
2899 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
2900 | "JFNS", /* 770x-JL */ | |
2901 | ); /* all others */ | |
2902 | ||
fe98a52c HMH |
2903 | /* |
2904 | * SYSFS fan layout: hwmon compatible (device) | |
2905 | * | |
2906 | * pwm*_enable: | |
2907 | * 0: "disengaged" mode | |
2908 | * 1: manual mode | |
2909 | * 2: native EC "auto" mode (recommended, hardware default) | |
2910 | * | |
2911 | * pwm*: set speed in manual mode, ignored otherwise. | |
2912 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
2913 | * interpolation. | |
2914 | * | |
2915 | * fan*_input: tachometer reading, RPM | |
2916 | * | |
2917 | * | |
2918 | * SYSFS fan layout: extensions | |
2919 | * | |
2920 | * fan_watchdog (driver): | |
2921 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
2922 | */ | |
2923 | ||
2924 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
2925 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
2926 | struct device_attribute *attr, | |
2927 | char *buf) | |
2928 | { | |
2929 | int res, mode; | |
2930 | u8 status; | |
2931 | ||
2932 | res = fan_get_status_safe(&status); | |
2933 | if (res) | |
2934 | return res; | |
2935 | ||
2936 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
2937 | if (status != fan_control_initial_status) { | |
2938 | tp_features.fan_ctrl_status_undef = 0; | |
2939 | } else { | |
2940 | /* Return most likely status. In fact, it | |
2941 | * might be the only possible status */ | |
2942 | status = TP_EC_FAN_AUTO; | |
2943 | } | |
2944 | } | |
2945 | ||
2946 | if (status & TP_EC_FAN_FULLSPEED) { | |
2947 | mode = 0; | |
2948 | } else if (status & TP_EC_FAN_AUTO) { | |
2949 | mode = 2; | |
2950 | } else | |
2951 | mode = 1; | |
2952 | ||
2953 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
2954 | } | |
2955 | ||
2956 | static ssize_t fan_pwm1_enable_store(struct device *dev, | |
2957 | struct device_attribute *attr, | |
2958 | const char *buf, size_t count) | |
2959 | { | |
2960 | unsigned long t; | |
2961 | int res, level; | |
2962 | ||
2963 | if (parse_strtoul(buf, 2, &t)) | |
2964 | return -EINVAL; | |
2965 | ||
2966 | switch (t) { | |
2967 | case 0: | |
2968 | level = TP_EC_FAN_FULLSPEED; | |
2969 | break; | |
2970 | case 1: | |
2971 | level = TPACPI_FAN_LAST_LEVEL; | |
2972 | break; | |
2973 | case 2: | |
2974 | level = TP_EC_FAN_AUTO; | |
2975 | break; | |
2976 | case 3: | |
2977 | /* reserved for software-controlled auto mode */ | |
2978 | return -ENOSYS; | |
2979 | default: | |
2980 | return -EINVAL; | |
2981 | } | |
2982 | ||
2983 | res = fan_set_level_safe(level); | |
c573ddb9 HMH |
2984 | if (res == -ENXIO) |
2985 | return -EINVAL; | |
2986 | else if (res < 0) | |
fe98a52c HMH |
2987 | return res; |
2988 | ||
2989 | fan_watchdog_reset(); | |
2990 | ||
2991 | return count; | |
2992 | } | |
2993 | ||
2994 | static struct device_attribute dev_attr_fan_pwm1_enable = | |
2995 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
2996 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
2997 | ||
2998 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
2999 | static ssize_t fan_pwm1_show(struct device *dev, | |
3000 | struct device_attribute *attr, | |
3001 | char *buf) | |
3002 | { | |
3003 | int res; | |
3004 | u8 status; | |
3005 | ||
3006 | res = fan_get_status_safe(&status); | |
3007 | if (res) | |
3008 | return res; | |
3009 | ||
3010 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
3011 | if (status != fan_control_initial_status) { | |
3012 | tp_features.fan_ctrl_status_undef = 0; | |
3013 | } else { | |
3014 | status = TP_EC_FAN_AUTO; | |
3015 | } | |
3016 | } | |
3017 | ||
3018 | if ((status & | |
3019 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
3020 | status = fan_control_desired_level; | |
3021 | ||
3022 | if (status > 7) | |
3023 | status = 7; | |
3024 | ||
3025 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); | |
3026 | } | |
3027 | ||
3028 | static ssize_t fan_pwm1_store(struct device *dev, | |
3029 | struct device_attribute *attr, | |
3030 | const char *buf, size_t count) | |
3031 | { | |
3032 | unsigned long s; | |
3033 | int rc; | |
3034 | u8 status, newlevel; | |
3035 | ||
3036 | if (parse_strtoul(buf, 255, &s)) | |
3037 | return -EINVAL; | |
3038 | ||
3039 | /* scale down from 0-255 to 0-7 */ | |
3040 | newlevel = (s >> 5) & 0x07; | |
3041 | ||
3042 | rc = mutex_lock_interruptible(&fan_mutex); | |
3043 | if (rc < 0) | |
3044 | return rc; | |
3045 | ||
3046 | rc = fan_get_status(&status); | |
3047 | if (!rc && (status & | |
3048 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
3049 | rc = fan_set_level(newlevel); | |
c573ddb9 HMH |
3050 | if (rc == -ENXIO) |
3051 | rc = -EINVAL; | |
3052 | else if (!rc) { | |
fe98a52c | 3053 | fan_update_desired_level(newlevel); |
ca4ac2f4 HMH |
3054 | fan_watchdog_reset(); |
3055 | } | |
fe98a52c HMH |
3056 | } |
3057 | ||
3058 | mutex_unlock(&fan_mutex); | |
3059 | return (rc)? rc : count; | |
3060 | } | |
3061 | ||
3062 | static struct device_attribute dev_attr_fan_pwm1 = | |
3063 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
3064 | fan_pwm1_show, fan_pwm1_store); | |
3065 | ||
3066 | /* sysfs fan fan1_input ------------------------------------------------ */ | |
3067 | static ssize_t fan_fan1_input_show(struct device *dev, | |
3068 | struct device_attribute *attr, | |
3069 | char *buf) | |
3070 | { | |
3071 | int res; | |
3072 | unsigned int speed; | |
3073 | ||
3074 | res = fan_get_speed(&speed); | |
3075 | if (res < 0) | |
3076 | return res; | |
3077 | ||
3078 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
3079 | } | |
3080 | ||
3081 | static struct device_attribute dev_attr_fan_fan1_input = | |
3082 | __ATTR(fan1_input, S_IRUGO, | |
3083 | fan_fan1_input_show, NULL); | |
3084 | ||
3085 | /* sysfs fan fan_watchdog (driver) ------------------------------------- */ | |
3086 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
3087 | char *buf) | |
3088 | { | |
3089 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
3090 | } | |
3091 | ||
3092 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, | |
3093 | const char *buf, size_t count) | |
3094 | { | |
3095 | unsigned long t; | |
3096 | ||
3097 | if (parse_strtoul(buf, 120, &t)) | |
3098 | return -EINVAL; | |
3099 | ||
ecf2a80a HMH |
3100 | if (!fan_control_allowed) |
3101 | return -EPERM; | |
3102 | ||
fe98a52c HMH |
3103 | fan_watchdog_maxinterval = t; |
3104 | fan_watchdog_reset(); | |
3105 | ||
3106 | return count; | |
3107 | } | |
3108 | ||
3109 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
3110 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
3111 | ||
3112 | /* --------------------------------------------------------------------- */ | |
3113 | static struct attribute *fan_attributes[] = { | |
3114 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
3115 | &dev_attr_fan_fan1_input.attr, | |
3116 | NULL | |
3117 | }; | |
3118 | ||
3119 | static const struct attribute_group fan_attr_group = { | |
3120 | .attrs = fan_attributes, | |
3121 | }; | |
3122 | ||
a5763f22 | 3123 | static int __init fan_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3124 | { |
fe98a52c HMH |
3125 | int rc; |
3126 | ||
fe08bc4b HMH |
3127 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); |
3128 | ||
40ca9fdf | 3129 | mutex_init(&fan_mutex); |
efa27145 HMH |
3130 | fan_status_access_mode = TPACPI_FAN_NONE; |
3131 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
69ba91cb | 3132 | fan_control_commands = 0; |
16663a87 | 3133 | fan_watchdog_maxinterval = 0; |
d8fd94d9 | 3134 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 3135 | fan_control_desired_level = 7; |
78f81cc4 | 3136 | |
8d376cd6 HMH |
3137 | IBM_ACPIHANDLE_INIT(fans); |
3138 | IBM_ACPIHANDLE_INIT(gfan); | |
3139 | IBM_ACPIHANDLE_INIT(sfan); | |
5fba344c | 3140 | |
78f81cc4 BD |
3141 | if (gfan_handle) { |
3142 | /* 570, 600e/x, 770e, 770x */ | |
efa27145 | 3143 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; |
69ba91cb HMH |
3144 | } else { |
3145 | /* all other ThinkPads: note that even old-style | |
3146 | * ThinkPad ECs supports the fan control register */ | |
778b4d74 HMH |
3147 | if (likely(acpi_ec_read(fan_status_offset, |
3148 | &fan_control_initial_status))) { | |
efa27145 | 3149 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; |
778b4d74 HMH |
3150 | |
3151 | /* In some ThinkPads, neither the EC nor the ACPI | |
3152 | * DSDT initialize the fan status, and it ends up | |
3153 | * being set to 0x07 when it *could* be either | |
3154 | * 0x07 or 0x80. | |
3155 | * | |
3156 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
3157 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
3158 | * to be buggy. */ | |
3159 | if (fan_control_initial_status == 0x07 && | |
3160 | ibm_thinkpad_ec_found && | |
3161 | ((ibm_thinkpad_ec_found[0] == '1' && | |
3162 | ibm_thinkpad_ec_found[1] == 'Y') || | |
3163 | (ibm_thinkpad_ec_found[0] == '7' && | |
3164 | (ibm_thinkpad_ec_found[1] == '6' || | |
3165 | ibm_thinkpad_ec_found[1] == '8' || | |
3166 | ibm_thinkpad_ec_found[1] == '0')) | |
3167 | )) { | |
3168 | printk(IBM_NOTICE | |
3169 | "fan_init: initial fan status is " | |
3170 | "unknown, assuming it is in auto " | |
3171 | "mode\n"); | |
d8fd94d9 | 3172 | tp_features.fan_ctrl_status_undef = 1; |
778b4d74 | 3173 | } |
69ba91cb HMH |
3174 | } else { |
3175 | printk(IBM_ERR | |
3176 | "ThinkPad ACPI EC access misbehaving, " | |
3177 | "fan status and control unavailable\n"); | |
5fba344c | 3178 | return 1; |
69ba91cb HMH |
3179 | } |
3180 | } | |
78f81cc4 | 3181 | |
69ba91cb HMH |
3182 | if (sfan_handle) { |
3183 | /* 570, 770x-JL */ | |
efa27145 | 3184 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; |
1c6a334e | 3185 | fan_control_commands |= |
efa27145 | 3186 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; |
78f81cc4 | 3187 | } else { |
69ba91cb HMH |
3188 | if (!gfan_handle) { |
3189 | /* gfan without sfan means no fan control */ | |
3190 | /* all other models implement TP EC 0x2f control */ | |
3191 | ||
3192 | if (fans_handle) { | |
a8b7a662 | 3193 | /* X31, X40, X41 */ |
69ba91cb | 3194 | fan_control_access_mode = |
efa27145 | 3195 | TPACPI_FAN_WR_ACPI_FANS; |
69ba91cb | 3196 | fan_control_commands |= |
efa27145 HMH |
3197 | TPACPI_FAN_CMD_SPEED | |
3198 | TPACPI_FAN_CMD_LEVEL | | |
3199 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb | 3200 | } else { |
efa27145 | 3201 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; |
a12095c2 | 3202 | fan_control_commands |= |
efa27145 HMH |
3203 | TPACPI_FAN_CMD_LEVEL | |
3204 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
3205 | } |
3206 | } | |
3207 | } | |
3208 | ||
fe08bc4b HMH |
3209 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
3210 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
3211 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
3212 | fan_status_access_mode, fan_control_access_mode); | |
3213 | ||
ecf2a80a HMH |
3214 | /* fan control master switch */ |
3215 | if (!fan_control_allowed) { | |
3216 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
3217 | fan_control_commands = 0; | |
3218 | dbg_printk(TPACPI_DBG_INIT, | |
3219 | "fan control features disabled by parameter\n"); | |
3220 | } | |
3221 | ||
fe98a52c HMH |
3222 | /* update fan_control_desired_level */ |
3223 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
3224 | fan_get_status_safe(NULL); | |
3225 | ||
3226 | if (fan_status_access_mode != TPACPI_FAN_NONE || | |
3227 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
3228 | rc = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
3229 | &fan_attr_group); | |
3230 | if (!(rc < 0)) | |
3231 | rc = driver_create_file(&tpacpi_pdriver.driver, | |
3232 | &driver_attr_fan_watchdog); | |
3233 | if (rc < 0) | |
3234 | return rc; | |
3235 | return 0; | |
3236 | } else | |
3237 | return 1; | |
3238 | } | |
3239 | ||
3240 | /* | |
3241 | * Call with fan_mutex held | |
3242 | */ | |
3243 | static void fan_update_desired_level(u8 status) | |
3244 | { | |
3245 | if ((status & | |
3246 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
3247 | if (status > 7) | |
3248 | fan_control_desired_level = 7; | |
3249 | else | |
3250 | fan_control_desired_level = status; | |
3251 | } | |
69ba91cb | 3252 | } |
78f81cc4 | 3253 | |
c52f0aa5 | 3254 | static int fan_get_status(u8 *status) |
78f81cc4 | 3255 | { |
c52f0aa5 | 3256 | u8 s; |
78f81cc4 | 3257 | |
a8b7a662 | 3258 | /* TODO: |
efa27145 | 3259 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ |
a8b7a662 | 3260 | |
3ef8a609 | 3261 | switch (fan_status_access_mode) { |
efa27145 | 3262 | case TPACPI_FAN_RD_ACPI_GFAN: |
78f81cc4 | 3263 | /* 570, 600e/x, 770e, 770x */ |
c52f0aa5 HMH |
3264 | |
3265 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) | |
1da177e4 | 3266 | return -EIO; |
78f81cc4 | 3267 | |
c52f0aa5 HMH |
3268 | if (likely(status)) |
3269 | *status = s & 0x07; | |
3ef8a609 HMH |
3270 | |
3271 | break; | |
3272 | ||
efa27145 | 3273 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 3274 | /* all except 570, 600e/x, 770e, 770x */ |
c52f0aa5 | 3275 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
3ef8a609 | 3276 | return -EIO; |
78f81cc4 | 3277 | |
c52f0aa5 HMH |
3278 | if (likely(status)) |
3279 | *status = s; | |
3280 | ||
3281 | break; | |
3282 | ||
3283 | default: | |
3284 | return -ENXIO; | |
78f81cc4 BD |
3285 | } |
3286 | ||
c52f0aa5 HMH |
3287 | return 0; |
3288 | } | |
3289 | ||
fe98a52c HMH |
3290 | static int fan_get_status_safe(u8 *status) |
3291 | { | |
3292 | int rc; | |
3293 | u8 s; | |
3294 | ||
3295 | rc = mutex_lock_interruptible(&fan_mutex); | |
3296 | if (rc < 0) | |
3297 | return rc; | |
3298 | rc = fan_get_status(&s); | |
3299 | if (!rc) | |
3300 | fan_update_desired_level(s); | |
3301 | mutex_unlock(&fan_mutex); | |
3302 | ||
3303 | if (status) | |
3304 | *status = s; | |
3305 | ||
3306 | return rc; | |
3307 | } | |
3308 | ||
56b6aeb0 HMH |
3309 | static void fan_exit(void) |
3310 | { | |
99fba3f8 | 3311 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n"); |
fe98a52c HMH |
3312 | |
3313 | /* FIXME: can we really do this unconditionally? */ | |
3314 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, &fan_attr_group); | |
3315 | driver_remove_file(&tpacpi_pdriver.driver, &driver_attr_fan_watchdog); | |
3316 | ||
56b6aeb0 HMH |
3317 | cancel_delayed_work(&fan_watchdog_task); |
3318 | flush_scheduled_work(); | |
3319 | } | |
3320 | ||
c52f0aa5 HMH |
3321 | static int fan_get_speed(unsigned int *speed) |
3322 | { | |
3323 | u8 hi, lo; | |
3324 | ||
3325 | switch (fan_status_access_mode) { | |
efa27145 | 3326 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 3327 | /* all except 570, 600e/x, 770e, 770x */ |
3ef8a609 HMH |
3328 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
3329 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
3330 | return -EIO; | |
3ef8a609 | 3331 | |
c52f0aa5 HMH |
3332 | if (likely(speed)) |
3333 | *speed = (hi << 8) | lo; | |
3334 | ||
3335 | break; | |
3336 | ||
3337 | default: | |
3338 | return -ENXIO; | |
3339 | } | |
3340 | ||
3341 | return 0; | |
3342 | } | |
3343 | ||
56b6aeb0 | 3344 | static void fan_watchdog_fire(struct work_struct *ignored) |
16663a87 | 3345 | { |
99fba3f8 HMH |
3346 | int rc; |
3347 | ||
56b6aeb0 | 3348 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); |
99fba3f8 HMH |
3349 | rc = fan_set_enable(); |
3350 | if (rc < 0) { | |
3351 | printk(IBM_ERR "fan watchdog: error %d while enabling fan, " | |
3352 | "will try again later...\n", -rc); | |
56b6aeb0 HMH |
3353 | /* reschedule for later */ |
3354 | fan_watchdog_reset(); | |
3355 | } | |
16663a87 HMH |
3356 | } |
3357 | ||
3358 | static void fan_watchdog_reset(void) | |
3359 | { | |
3360 | static int fan_watchdog_active = 0; | |
3361 | ||
4985cd0a HMH |
3362 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
3363 | return; | |
3364 | ||
16663a87 HMH |
3365 | if (fan_watchdog_active) |
3366 | cancel_delayed_work(&fan_watchdog_task); | |
3367 | ||
3368 | if (fan_watchdog_maxinterval > 0) { | |
3369 | fan_watchdog_active = 1; | |
3370 | if (!schedule_delayed_work(&fan_watchdog_task, | |
3371 | msecs_to_jiffies(fan_watchdog_maxinterval | |
3372 | * 1000))) { | |
3373 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
3374 | "watchdog will not trigger\n"); | |
3375 | } | |
3376 | } else | |
3377 | fan_watchdog_active = 0; | |
3378 | } | |
3379 | ||
18ad7996 | 3380 | static int fan_set_level(int level) |
78f81cc4 | 3381 | { |
ecf2a80a HMH |
3382 | if (!fan_control_allowed) |
3383 | return -EPERM; | |
3384 | ||
18ad7996 | 3385 | switch (fan_control_access_mode) { |
efa27145 | 3386 | case TPACPI_FAN_WR_ACPI_SFAN: |
18ad7996 | 3387 | if (level >= 0 && level <= 7) { |
fe98a52c | 3388 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
78f81cc4 | 3389 | return -EIO; |
18ad7996 HMH |
3390 | } else |
3391 | return -EINVAL; | |
3392 | break; | |
3393 | ||
efa27145 HMH |
3394 | case TPACPI_FAN_WR_ACPI_FANS: |
3395 | case TPACPI_FAN_WR_TPEC: | |
3396 | if ((level != TP_EC_FAN_AUTO) && | |
3397 | (level != TP_EC_FAN_FULLSPEED) && | |
a12095c2 HMH |
3398 | ((level < 0) || (level > 7))) |
3399 | return -EINVAL; | |
3400 | ||
eaa7571b HMH |
3401 | /* safety net should the EC not support AUTO |
3402 | * or FULLSPEED mode bits and just ignore them */ | |
3403 | if (level & TP_EC_FAN_FULLSPEED) | |
3404 | level |= 7; /* safety min speed 7 */ | |
3405 | else if (level & TP_EC_FAN_FULLSPEED) | |
3406 | level |= 4; /* safety min speed 4 */ | |
3407 | ||
fe98a52c | 3408 | if (!acpi_ec_write(fan_status_offset, level)) |
a12095c2 | 3409 | return -EIO; |
778b4d74 | 3410 | else |
d8fd94d9 | 3411 | tp_features.fan_ctrl_status_undef = 0; |
a12095c2 HMH |
3412 | break; |
3413 | ||
18ad7996 HMH |
3414 | default: |
3415 | return -ENXIO; | |
3416 | } | |
3417 | return 0; | |
3418 | } | |
3419 | ||
fe98a52c HMH |
3420 | static int fan_set_level_safe(int level) |
3421 | { | |
3422 | int rc; | |
3423 | ||
ecf2a80a HMH |
3424 | if (!fan_control_allowed) |
3425 | return -EPERM; | |
3426 | ||
fe98a52c HMH |
3427 | rc = mutex_lock_interruptible(&fan_mutex); |
3428 | if (rc < 0) | |
3429 | return rc; | |
3430 | ||
3431 | if (level == TPACPI_FAN_LAST_LEVEL) | |
3432 | level = fan_control_desired_level; | |
3433 | ||
3434 | rc = fan_set_level(level); | |
3435 | if (!rc) | |
3436 | fan_update_desired_level(level); | |
3437 | ||
3438 | mutex_unlock(&fan_mutex); | |
3439 | return rc; | |
3440 | } | |
3441 | ||
18ad7996 HMH |
3442 | static int fan_set_enable(void) |
3443 | { | |
1c6a334e HMH |
3444 | u8 s; |
3445 | int rc; | |
3446 | ||
ecf2a80a HMH |
3447 | if (!fan_control_allowed) |
3448 | return -EPERM; | |
3449 | ||
40ca9fdf HMH |
3450 | rc = mutex_lock_interruptible(&fan_mutex); |
3451 | if (rc < 0) | |
3452 | return rc; | |
3453 | ||
18ad7996 | 3454 | switch (fan_control_access_mode) { |
efa27145 HMH |
3455 | case TPACPI_FAN_WR_ACPI_FANS: |
3456 | case TPACPI_FAN_WR_TPEC: | |
40ca9fdf HMH |
3457 | rc = fan_get_status(&s); |
3458 | if (rc < 0) | |
3459 | break; | |
1c6a334e HMH |
3460 | |
3461 | /* Don't go out of emergency fan mode */ | |
eaa7571b HMH |
3462 | if (s != 7) { |
3463 | s &= 0x07; | |
3464 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
3465 | } | |
1c6a334e HMH |
3466 | |
3467 | if (!acpi_ec_write(fan_status_offset, s)) | |
40ca9fdf HMH |
3468 | rc = -EIO; |
3469 | else { | |
d8fd94d9 | 3470 | tp_features.fan_ctrl_status_undef = 0; |
40ca9fdf HMH |
3471 | rc = 0; |
3472 | } | |
1c6a334e HMH |
3473 | break; |
3474 | ||
efa27145 | 3475 | case TPACPI_FAN_WR_ACPI_SFAN: |
40ca9fdf HMH |
3476 | rc = fan_get_status(&s); |
3477 | if (rc < 0) | |
3478 | break; | |
1c6a334e HMH |
3479 | |
3480 | s &= 0x07; | |
3481 | ||
3482 | /* Set fan to at least level 4 */ | |
eaa7571b | 3483 | s |= 4; |
1c6a334e HMH |
3484 | |
3485 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) | |
40ca9fdf HMH |
3486 | rc= -EIO; |
3487 | else | |
3488 | rc = 0; | |
18ad7996 HMH |
3489 | break; |
3490 | ||
3491 | default: | |
40ca9fdf | 3492 | rc = -ENXIO; |
18ad7996 | 3493 | } |
40ca9fdf HMH |
3494 | |
3495 | mutex_unlock(&fan_mutex); | |
3496 | return rc; | |
18ad7996 HMH |
3497 | } |
3498 | ||
3499 | static int fan_set_disable(void) | |
3500 | { | |
40ca9fdf HMH |
3501 | int rc; |
3502 | ||
ecf2a80a HMH |
3503 | if (!fan_control_allowed) |
3504 | return -EPERM; | |
3505 | ||
40ca9fdf HMH |
3506 | rc = mutex_lock_interruptible(&fan_mutex); |
3507 | if (rc < 0) | |
3508 | return rc; | |
3509 | ||
3510 | rc = 0; | |
18ad7996 | 3511 | switch (fan_control_access_mode) { |
efa27145 HMH |
3512 | case TPACPI_FAN_WR_ACPI_FANS: |
3513 | case TPACPI_FAN_WR_TPEC: | |
18ad7996 | 3514 | if (!acpi_ec_write(fan_status_offset, 0x00)) |
40ca9fdf | 3515 | rc = -EIO; |
fe98a52c HMH |
3516 | else { |
3517 | fan_control_desired_level = 0; | |
d8fd94d9 | 3518 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 3519 | } |
18ad7996 HMH |
3520 | break; |
3521 | ||
efa27145 | 3522 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e | 3523 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) |
40ca9fdf | 3524 | rc = -EIO; |
fe98a52c HMH |
3525 | else |
3526 | fan_control_desired_level = 0; | |
1c6a334e HMH |
3527 | break; |
3528 | ||
18ad7996 | 3529 | default: |
40ca9fdf | 3530 | rc = -ENXIO; |
18ad7996 | 3531 | } |
40ca9fdf | 3532 | |
fe98a52c | 3533 | |
40ca9fdf HMH |
3534 | mutex_unlock(&fan_mutex); |
3535 | return rc; | |
56b6aeb0 HMH |
3536 | } |
3537 | ||
3538 | static int fan_set_speed(int speed) | |
3539 | { | |
40ca9fdf HMH |
3540 | int rc; |
3541 | ||
ecf2a80a HMH |
3542 | if (!fan_control_allowed) |
3543 | return -EPERM; | |
3544 | ||
40ca9fdf HMH |
3545 | rc = mutex_lock_interruptible(&fan_mutex); |
3546 | if (rc < 0) | |
3547 | return rc; | |
3548 | ||
3549 | rc = 0; | |
56b6aeb0 | 3550 | switch (fan_control_access_mode) { |
efa27145 | 3551 | case TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
3552 | if (speed >= 0 && speed <= 65535) { |
3553 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
3554 | speed, speed, speed)) | |
40ca9fdf | 3555 | rc = -EIO; |
56b6aeb0 | 3556 | } else |
40ca9fdf | 3557 | rc = -EINVAL; |
56b6aeb0 HMH |
3558 | break; |
3559 | ||
3560 | default: | |
40ca9fdf | 3561 | rc = -ENXIO; |
56b6aeb0 | 3562 | } |
40ca9fdf HMH |
3563 | |
3564 | mutex_unlock(&fan_mutex); | |
3565 | return rc; | |
56b6aeb0 HMH |
3566 | } |
3567 | ||
3568 | static int fan_read(char *p) | |
3569 | { | |
3570 | int len = 0; | |
3571 | int rc; | |
3572 | u8 status; | |
3573 | unsigned int speed = 0; | |
3574 | ||
3575 | switch (fan_status_access_mode) { | |
efa27145 | 3576 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 3577 | /* 570, 600e/x, 770e, 770x */ |
fe98a52c | 3578 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
3579 | return rc; |
3580 | ||
3581 | len += sprintf(p + len, "status:\t\t%s\n" | |
3582 | "level:\t\t%d\n", | |
3583 | (status != 0) ? "enabled" : "disabled", status); | |
3584 | break; | |
3585 | ||
efa27145 | 3586 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 3587 | /* all except 570, 600e/x, 770e, 770x */ |
fe98a52c | 3588 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
3589 | return rc; |
3590 | ||
d8fd94d9 | 3591 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 3592 | if (status != fan_control_initial_status) |
d8fd94d9 | 3593 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
3594 | else |
3595 | /* Return most likely status. In fact, it | |
3596 | * might be the only possible status */ | |
efa27145 | 3597 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
3598 | } |
3599 | ||
3600 | len += sprintf(p + len, "status:\t\t%s\n", | |
3601 | (status != 0) ? "enabled" : "disabled"); | |
3602 | ||
56b6aeb0 HMH |
3603 | if ((rc = fan_get_speed(&speed)) < 0) |
3604 | return rc; | |
3605 | ||
3606 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
3607 | ||
efa27145 | 3608 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
3609 | /* Disengaged mode takes precedence */ |
3610 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 3611 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
3612 | len += sprintf(p + len, "level:\t\tauto\n"); |
3613 | else | |
3614 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
3615 | break; | |
3616 | ||
efa27145 | 3617 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
3618 | default: |
3619 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
3620 | } | |
3621 | ||
efa27145 | 3622 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
3623 | len += sprintf(p + len, "commands:\tlevel <level>"); |
3624 | ||
3625 | switch (fan_control_access_mode) { | |
efa27145 | 3626 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
3627 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
3628 | break; | |
3629 | ||
3630 | default: | |
3631 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 3632 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
3633 | break; |
3634 | } | |
3635 | } | |
18ad7996 | 3636 | |
efa27145 | 3637 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
3638 | len += sprintf(p + len, "commands:\tenable, disable\n" |
3639 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
3640 | "1-120 (seconds))\n"); | |
1da177e4 | 3641 | |
efa27145 | 3642 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
3643 | len += sprintf(p + len, "commands:\tspeed <speed>" |
3644 | " (<speed> is 0-65535)\n"); | |
3645 | ||
3646 | return len; | |
78f81cc4 BD |
3647 | } |
3648 | ||
18ad7996 HMH |
3649 | static int fan_write_cmd_level(const char *cmd, int *rc) |
3650 | { | |
3651 | int level; | |
3652 | ||
a12095c2 | 3653 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 3654 | level = TP_EC_FAN_AUTO; |
fe98a52c HMH |
3655 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
3656 | (strlencmp(cmd, "level full-speed") == 0)) | |
efa27145 | 3657 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 3658 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
3659 | return 0; |
3660 | ||
fe98a52c | 3661 | if ((*rc = fan_set_level_safe(level)) == -ENXIO) |
18ad7996 HMH |
3662 | printk(IBM_ERR "level command accepted for unsupported " |
3663 | "access mode %d", fan_control_access_mode); | |
3664 | ||
3665 | return 1; | |
3666 | } | |
3667 | ||
3668 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
3669 | { | |
3670 | if (strlencmp(cmd, "enable") != 0) | |
3671 | return 0; | |
3672 | ||
3673 | if ((*rc = fan_set_enable()) == -ENXIO) | |
3674 | printk(IBM_ERR "enable command accepted for unsupported " | |
3675 | "access mode %d", fan_control_access_mode); | |
3676 | ||
3677 | return 1; | |
3678 | } | |
3679 | ||
3680 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
3681 | { | |
3682 | if (strlencmp(cmd, "disable") != 0) | |
3683 | return 0; | |
3684 | ||
3685 | if ((*rc = fan_set_disable()) == -ENXIO) | |
3686 | printk(IBM_ERR "disable command accepted for unsupported " | |
3687 | "access mode %d", fan_control_access_mode); | |
3688 | ||
3689 | return 1; | |
3690 | } | |
3691 | ||
3692 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
3693 | { | |
3694 | int speed; | |
3695 | ||
a8b7a662 HMH |
3696 | /* TODO: |
3697 | * Support speed <low> <medium> <high> ? */ | |
3698 | ||
18ad7996 HMH |
3699 | if (sscanf(cmd, "speed %d", &speed) != 1) |
3700 | return 0; | |
3701 | ||
3702 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
3703 | printk(IBM_ERR "speed command accepted for unsupported " | |
3704 | "access mode %d", fan_control_access_mode); | |
3705 | ||
3706 | return 1; | |
3707 | } | |
3708 | ||
16663a87 HMH |
3709 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
3710 | { | |
3711 | int interval; | |
3712 | ||
3713 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
3714 | return 0; | |
3715 | ||
3716 | if (interval < 0 || interval > 120) | |
3717 | *rc = -EINVAL; | |
3718 | else | |
3719 | fan_watchdog_maxinterval = interval; | |
3720 | ||
3721 | return 1; | |
3722 | } | |
3723 | ||
18ad7996 HMH |
3724 | static int fan_write(char *buf) |
3725 | { | |
3726 | char *cmd; | |
3727 | int rc = 0; | |
3728 | ||
3729 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 3730 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 3731 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 3732 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 3733 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
3734 | fan_write_cmd_disable(cmd, &rc) || |
3735 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 3736 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
3737 | fan_write_cmd_speed(cmd, &rc)) |
3738 | ) | |
3739 | rc = -EINVAL; | |
16663a87 HMH |
3740 | else if (!rc) |
3741 | fan_watchdog_reset(); | |
18ad7996 HMH |
3742 | } |
3743 | ||
3744 | return rc; | |
3745 | } | |
3746 | ||
a5763f22 HMH |
3747 | static struct ibm_struct fan_driver_data = { |
3748 | .name = "fan", | |
3749 | .read = fan_read, | |
3750 | .write = fan_write, | |
3751 | .exit = fan_exit, | |
a5763f22 HMH |
3752 | }; |
3753 | ||
56b6aeb0 HMH |
3754 | /**************************************************************************** |
3755 | **************************************************************************** | |
3756 | * | |
3757 | * Infrastructure | |
3758 | * | |
3759 | **************************************************************************** | |
3760 | ****************************************************************************/ | |
3761 | ||
3762 | /* /proc support */ | |
3763 | static struct proc_dir_entry *proc_dir = NULL; | |
16663a87 | 3764 | |
56b6aeb0 | 3765 | /* Subdriver registry */ |
a5763f22 HMH |
3766 | static LIST_HEAD(tpacpi_all_drivers); |
3767 | ||
1da177e4 | 3768 | |
56b6aeb0 HMH |
3769 | /* |
3770 | * Module and infrastructure proble, init and exit handling | |
3771 | */ | |
1da177e4 | 3772 | |
fe08bc4b | 3773 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 3774 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 3775 | { |
a5763f22 | 3776 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 3777 | |
a5763f22 | 3778 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
3779 | } |
3780 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
3781 | ||
a5763f22 | 3782 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
3783 | { |
3784 | int ret; | |
a5763f22 | 3785 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
3786 | struct proc_dir_entry *entry; |
3787 | ||
a5763f22 HMH |
3788 | BUG_ON(ibm == NULL); |
3789 | ||
3790 | INIT_LIST_HEAD(&ibm->all_drivers); | |
3791 | ||
92641177 | 3792 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
3793 | return 0; |
3794 | ||
fe08bc4b HMH |
3795 | dbg_printk(TPACPI_DBG_INIT, |
3796 | "probing for %s\n", ibm->name); | |
3797 | ||
a5763f22 HMH |
3798 | if (iibm->init) { |
3799 | ret = iibm->init(iibm); | |
5fba344c HMH |
3800 | if (ret > 0) |
3801 | return 0; /* probe failed */ | |
3802 | if (ret) | |
1da177e4 | 3803 | return ret; |
a5763f22 | 3804 | |
92641177 | 3805 | ibm->flags.init_called = 1; |
1da177e4 LT |
3806 | } |
3807 | ||
8d376cd6 HMH |
3808 | if (ibm->acpi) { |
3809 | if (ibm->acpi->hid) { | |
3810 | ret = register_tpacpi_subdriver(ibm); | |
3811 | if (ret) | |
3812 | goto err_out; | |
3813 | } | |
5fba344c | 3814 | |
8d376cd6 HMH |
3815 | if (ibm->acpi->notify) { |
3816 | ret = setup_acpi_notify(ibm); | |
3817 | if (ret == -ENODEV) { | |
3818 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
3819 | ibm->name); | |
3820 | ret = 0; | |
3821 | goto err_out; | |
3822 | } | |
3823 | if (ret < 0) | |
3824 | goto err_out; | |
5fba344c | 3825 | } |
5fba344c HMH |
3826 | } |
3827 | ||
fe08bc4b HMH |
3828 | dbg_printk(TPACPI_DBG_INIT, |
3829 | "%s installed\n", ibm->name); | |
3830 | ||
78f81cc4 BD |
3831 | if (ibm->read) { |
3832 | entry = create_proc_entry(ibm->name, | |
3833 | S_IFREG | S_IRUGO | S_IWUSR, | |
3834 | proc_dir); | |
3835 | if (!entry) { | |
3836 | printk(IBM_ERR "unable to create proc entry %s\n", | |
3837 | ibm->name); | |
5fba344c HMH |
3838 | ret = -ENODEV; |
3839 | goto err_out; | |
78f81cc4 BD |
3840 | } |
3841 | entry->owner = THIS_MODULE; | |
3842 | entry->data = ibm; | |
8d376cd6 | 3843 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 3844 | if (ibm->write) |
8d376cd6 | 3845 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 3846 | ibm->flags.proc_created = 1; |
78f81cc4 | 3847 | } |
1da177e4 | 3848 | |
a5763f22 HMH |
3849 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
3850 | ||
1da177e4 | 3851 | return 0; |
5fba344c HMH |
3852 | |
3853 | err_out: | |
fe08bc4b HMH |
3854 | dbg_printk(TPACPI_DBG_INIT, |
3855 | "%s: at error exit path with result %d\n", | |
3856 | ibm->name, ret); | |
3857 | ||
5fba344c HMH |
3858 | ibm_exit(ibm); |
3859 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
3860 | } |
3861 | ||
3862 | static void ibm_exit(struct ibm_struct *ibm) | |
3863 | { | |
fe08bc4b | 3864 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); |
a5763f22 HMH |
3865 | |
3866 | list_del_init(&ibm->all_drivers); | |
3867 | ||
8d376cd6 | 3868 | if (ibm->flags.acpi_notify_installed) { |
fe08bc4b HMH |
3869 | dbg_printk(TPACPI_DBG_EXIT, |
3870 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8d376cd6 HMH |
3871 | BUG_ON(!ibm->acpi); |
3872 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
3873 | ibm->acpi->type, | |
3874 | dispatch_acpi_notify); | |
3875 | ibm->flags.acpi_notify_installed = 0; | |
3876 | ibm->flags.acpi_notify_installed = 0; | |
5fba344c | 3877 | } |
1da177e4 | 3878 | |
92641177 | 3879 | if (ibm->flags.proc_created) { |
fe08bc4b HMH |
3880 | dbg_printk(TPACPI_DBG_EXIT, |
3881 | "%s: remove_proc_entry\n", ibm->name); | |
1da177e4 | 3882 | remove_proc_entry(ibm->name, proc_dir); |
92641177 | 3883 | ibm->flags.proc_created = 0; |
5fba344c | 3884 | } |
1da177e4 | 3885 | |
8d376cd6 | 3886 | if (ibm->flags.acpi_driver_registered) { |
fe08bc4b HMH |
3887 | dbg_printk(TPACPI_DBG_EXIT, |
3888 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8d376cd6 HMH |
3889 | BUG_ON(!ibm->acpi); |
3890 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
3891 | kfree(ibm->acpi->driver); | |
3892 | ibm->acpi->driver = NULL; | |
3893 | ibm->flags.acpi_driver_registered = 0; | |
5fba344c HMH |
3894 | } |
3895 | ||
92641177 | 3896 | if (ibm->flags.init_called && ibm->exit) { |
5fba344c | 3897 | ibm->exit(); |
92641177 | 3898 | ibm->flags.init_called = 0; |
1da177e4 | 3899 | } |
a5763f22 HMH |
3900 | |
3901 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
1da177e4 LT |
3902 | } |
3903 | ||
56b6aeb0 HMH |
3904 | /* Probing */ |
3905 | ||
3906 | static char *ibm_thinkpad_ec_found = NULL; | |
3907 | ||
3908 | static char* __init check_dmi_for_ec(void) | |
1da177e4 | 3909 | { |
56b6aeb0 HMH |
3910 | struct dmi_device *dev = NULL; |
3911 | char ec_fw_string[18]; | |
1da177e4 | 3912 | |
56b6aeb0 HMH |
3913 | /* |
3914 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
3915 | * X32 or newer, all Z series; Some models must have an | |
3916 | * up-to-date BIOS or they will not be detected. | |
3917 | * | |
3918 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
3919 | */ | |
3920 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
3921 | if (sscanf(dev->name, | |
3922 | "IBM ThinkPad Embedded Controller -[%17c", | |
3923 | ec_fw_string) == 1) { | |
3924 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
3925 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
3926 | return kstrdup(ec_fw_string, GFP_KERNEL); | |
78f81cc4 | 3927 | } |
1da177e4 | 3928 | } |
56b6aeb0 | 3929 | return NULL; |
1da177e4 LT |
3930 | } |
3931 | ||
5fba344c HMH |
3932 | static int __init probe_for_thinkpad(void) |
3933 | { | |
3934 | int is_thinkpad; | |
3935 | ||
3936 | if (acpi_disabled) | |
3937 | return -ENODEV; | |
3938 | ||
3939 | /* | |
3940 | * Non-ancient models have better DMI tagging, but very old models | |
3941 | * don't. | |
3942 | */ | |
3943 | is_thinkpad = dmi_name_in_vendors("ThinkPad"); | |
3944 | ||
3945 | /* ec is required because many other handles are relative to it */ | |
8d376cd6 | 3946 | IBM_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
3947 | if (!ec_handle) { |
3948 | if (is_thinkpad) | |
3949 | printk(IBM_ERR | |
3950 | "Not yet supported ThinkPad detected!\n"); | |
3951 | return -ENODEV; | |
3952 | } | |
3953 | ||
0dcef77c HMH |
3954 | /* |
3955 | * Risks a regression on very old machines, but reduces potential | |
3956 | * false positives a damn great deal | |
3957 | */ | |
3958 | if (!is_thinkpad) | |
3959 | is_thinkpad = dmi_name_in_vendors("IBM"); | |
3960 | ||
3961 | if (!is_thinkpad && !force_load) | |
3962 | return -ENODEV; | |
3963 | ||
5fba344c HMH |
3964 | return 0; |
3965 | } | |
3966 | ||
3967 | ||
56b6aeb0 | 3968 | /* Module init, exit, parameters */ |
1da177e4 | 3969 | |
a5763f22 HMH |
3970 | static struct ibm_init_struct ibms_init[] __initdata = { |
3971 | { | |
3972 | .init = thinkpad_acpi_driver_init, | |
3973 | .data = &thinkpad_acpi_driver_data, | |
3974 | }, | |
3975 | { | |
3976 | .init = hotkey_init, | |
3977 | .data = &hotkey_driver_data, | |
3978 | }, | |
3979 | { | |
3980 | .init = bluetooth_init, | |
3981 | .data = &bluetooth_driver_data, | |
3982 | }, | |
3983 | { | |
3984 | .init = wan_init, | |
3985 | .data = &wan_driver_data, | |
3986 | }, | |
3987 | { | |
3988 | .init = video_init, | |
3989 | .data = &video_driver_data, | |
3990 | }, | |
3991 | { | |
3992 | .init = light_init, | |
3993 | .data = &light_driver_data, | |
3994 | }, | |
3995 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
3996 | { | |
3997 | .init = dock_init, | |
3998 | .data = &dock_driver_data[0], | |
3999 | }, | |
4000 | { | |
d94a7f16 | 4001 | .init = dock_init2, |
a5763f22 HMH |
4002 | .data = &dock_driver_data[1], |
4003 | }, | |
4004 | #endif | |
4005 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
4006 | { | |
4007 | .init = bay_init, | |
4008 | .data = &bay_driver_data, | |
4009 | }, | |
4010 | #endif | |
4011 | { | |
4012 | .init = cmos_init, | |
4013 | .data = &cmos_driver_data, | |
4014 | }, | |
4015 | { | |
4016 | .init = led_init, | |
4017 | .data = &led_driver_data, | |
4018 | }, | |
4019 | { | |
4020 | .init = beep_init, | |
4021 | .data = &beep_driver_data, | |
4022 | }, | |
4023 | { | |
4024 | .init = thermal_init, | |
4025 | .data = &thermal_driver_data, | |
4026 | }, | |
4027 | { | |
4028 | .data = &ecdump_driver_data, | |
4029 | }, | |
4030 | { | |
4031 | .init = brightness_init, | |
4032 | .data = &brightness_driver_data, | |
4033 | }, | |
4034 | { | |
4035 | .data = &volume_driver_data, | |
4036 | }, | |
4037 | { | |
4038 | .init = fan_init, | |
4039 | .data = &fan_driver_data, | |
4040 | }, | |
4041 | }; | |
4042 | ||
3945ac36 | 4043 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
4044 | { |
4045 | unsigned int i; | |
a5763f22 | 4046 | struct ibm_struct *ibm; |
1da177e4 | 4047 | |
a5763f22 HMH |
4048 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
4049 | ibm = ibms_init[i].data; | |
4050 | BUG_ON(ibm == NULL); | |
4051 | ||
4052 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
4053 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 4054 | return -ENOSPC; |
a5763f22 HMH |
4055 | strcpy(ibms_init[i].param, val); |
4056 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
4057 | return 0; |
4058 | } | |
a5763f22 | 4059 | } |
1da177e4 | 4060 | |
1da177e4 LT |
4061 | return -EINVAL; |
4062 | } | |
4063 | ||
56b6aeb0 HMH |
4064 | static int experimental; |
4065 | module_param(experimental, int, 0); | |
4066 | ||
132ce091 HMH |
4067 | static u32 dbg_level; |
4068 | module_param_named(debug, dbg_level, uint, 0); | |
4069 | ||
0dcef77c HMH |
4070 | static int force_load; |
4071 | module_param(force_load, int, 0); | |
4072 | ||
ecf2a80a HMH |
4073 | static int fan_control_allowed; |
4074 | module_param_named(fan_control, fan_control_allowed, int, 0); | |
4075 | ||
1da177e4 LT |
4076 | #define IBM_PARAM(feature) \ |
4077 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
4078 | ||
78f81cc4 BD |
4079 | IBM_PARAM(hotkey); |
4080 | IBM_PARAM(bluetooth); | |
4081 | IBM_PARAM(video); | |
4082 | IBM_PARAM(light); | |
85998248 | 4083 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
78f81cc4 | 4084 | IBM_PARAM(dock); |
63e5f248 | 4085 | #endif |
85998248 | 4086 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 | 4087 | IBM_PARAM(bay); |
85998248 | 4088 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
78f81cc4 BD |
4089 | IBM_PARAM(cmos); |
4090 | IBM_PARAM(led); | |
4091 | IBM_PARAM(beep); | |
4092 | IBM_PARAM(ecdump); | |
4093 | IBM_PARAM(brightness); | |
4094 | IBM_PARAM(volume); | |
4095 | IBM_PARAM(fan); | |
4096 | ||
1def7115 | 4097 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
4098 | { |
4099 | int ret, i; | |
4100 | ||
54ae1501 | 4101 | /* Driver-level probe */ |
5fba344c HMH |
4102 | ret = probe_for_thinkpad(); |
4103 | if (ret) | |
4104 | return ret; | |
1da177e4 | 4105 | |
54ae1501 | 4106 | /* Driver initialization */ |
60eb0b35 | 4107 | ibm_thinkpad_ec_found = check_dmi_for_ec(); |
8d376cd6 HMH |
4108 | IBM_ACPIHANDLE_INIT(ecrd); |
4109 | IBM_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 4110 | |
8d376cd6 | 4111 | proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir); |
1da177e4 | 4112 | if (!proc_dir) { |
8d376cd6 | 4113 | printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR); |
1def7115 | 4114 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
4115 | return -ENODEV; |
4116 | } | |
4117 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 4118 | |
54ae1501 HMH |
4119 | ret = platform_driver_register(&tpacpi_pdriver); |
4120 | if (ret) { | |
4121 | printk(IBM_ERR "unable to register platform driver\n"); | |
4122 | thinkpad_acpi_module_exit(); | |
4123 | return ret; | |
4124 | } | |
176750d6 HMH |
4125 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
4126 | if (ret) { | |
4127 | printk(IBM_ERR "unable to create sysfs driver attributes\n"); | |
4128 | thinkpad_acpi_module_exit(); | |
4129 | return ret; | |
4130 | } | |
4131 | ||
54ae1501 HMH |
4132 | |
4133 | /* Device initialization */ | |
4134 | tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1, | |
4135 | NULL, 0); | |
4136 | if (IS_ERR(tpacpi_pdev)) { | |
4137 | ret = PTR_ERR(tpacpi_pdev); | |
4138 | tpacpi_pdev = NULL; | |
4139 | printk(IBM_ERR "unable to register platform device\n"); | |
4140 | thinkpad_acpi_module_exit(); | |
4141 | return ret; | |
4142 | } | |
4143 | tpacpi_hwmon = hwmon_device_register(&tpacpi_pdev->dev); | |
4144 | if (IS_ERR(tpacpi_hwmon)) { | |
4145 | ret = PTR_ERR(tpacpi_hwmon); | |
4146 | tpacpi_hwmon = NULL; | |
4147 | printk(IBM_ERR "unable to register hwmon device\n"); | |
4148 | thinkpad_acpi_module_exit(); | |
4149 | return ret; | |
4150 | } | |
a5763f22 HMH |
4151 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
4152 | ret = ibm_init(&ibms_init[i]); | |
4153 | if (ret >= 0 && *ibms_init[i].param) | |
4154 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 4155 | if (ret < 0) { |
1def7115 | 4156 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
4157 | return ret; |
4158 | } | |
4159 | } | |
4160 | ||
4161 | return 0; | |
4162 | } | |
4163 | ||
1def7115 | 4164 | static void thinkpad_acpi_module_exit(void) |
56b6aeb0 | 4165 | { |
a5763f22 HMH |
4166 | struct ibm_struct *ibm, *itmp; |
4167 | ||
4168 | list_for_each_entry_safe_reverse(ibm, itmp, | |
4169 | &tpacpi_all_drivers, | |
4170 | all_drivers) { | |
4171 | ibm_exit(ibm); | |
4172 | } | |
56b6aeb0 | 4173 | |
a5763f22 | 4174 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); |
56b6aeb0 | 4175 | |
54ae1501 HMH |
4176 | if (tpacpi_hwmon) |
4177 | hwmon_device_unregister(tpacpi_hwmon); | |
4178 | ||
4179 | if (tpacpi_pdev) | |
4180 | platform_device_unregister(tpacpi_pdev); | |
4181 | ||
176750d6 | 4182 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); |
54ae1501 HMH |
4183 | platform_driver_unregister(&tpacpi_pdriver); |
4184 | ||
56b6aeb0 | 4185 | if (proc_dir) |
8d376cd6 | 4186 | remove_proc_entry(IBM_PROC_DIR, acpi_root_dir); |
56b6aeb0 | 4187 | |
8d376cd6 | 4188 | kfree(ibm_thinkpad_ec_found); |
56b6aeb0 HMH |
4189 | } |
4190 | ||
1def7115 HMH |
4191 | module_init(thinkpad_acpi_module_init); |
4192 | module_exit(thinkpad_acpi_module_exit); |