Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
643f12db | 2 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 LT |
3 | * |
4 | * | |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
a62bc916 | 6 | * Copyright (C) 2006-2007 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
1da177e4 LT |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
a62bc916 HMH |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
21 | * 02110-1301, USA. | |
78f81cc4 BD |
22 | */ |
23 | ||
c78d5c96 | 24 | #define IBM_VERSION "0.15" |
741553c2 | 25 | #define TPACPI_SYSFS_VERSION 0x010000 |
78f81cc4 BD |
26 | |
27 | /* | |
1da177e4 | 28 | * Changelog: |
643f12db HMH |
29 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
30 | * drivers/misc. | |
f9ff43a6 HMH |
31 | * |
32 | * 2006-11-22 0.13 new maintainer | |
33 | * changelog now lives in git commit history, and will | |
34 | * not be updated further in-file. | |
837ca6dd | 35 | * |
78f81cc4 BD |
36 | * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels |
37 | * 2005-03-17 0.11 support for 600e, 770x | |
38 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
39 | * support for 770e, G41 | |
40 | * G40 and G41 don't have a thinklight | |
41 | * temperatures no longer experimental | |
42 | * experimental brightness control | |
43 | * experimental volume control | |
44 | * experimental fan enable/disable | |
837ca6dd | 45 | * 2005-01-16 0.10 fix module loading on R30, R31 |
78f81cc4 BD |
46 | * 2005-01-16 0.9 support for 570, R30, R31 |
47 | * ultrabay support on A22p, A3x | |
48 | * limit arg for cmos, led, beep, drop experimental status | |
49 | * more capable led control on A21e, A22p, T20-22, X20 | |
50 | * experimental temperatures and fan speed | |
51 | * experimental embedded controller register dump | |
52 | * mark more functions as __init, drop incorrect __exit | |
53 | * use MODULE_VERSION | |
54 | * thanks to Henrik Brix Andersen <brix@gentoo.org> | |
55 | * fix parameter passing on module loading | |
56 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
57 | * thanks to Jim Radford <radford@blackbean.org> | |
58 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
59 | * thanks to Chris Wright <chrisw@osdl.org> | |
60 | * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20 | |
61 | * fix led control on A21e | |
62 | * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device | |
1da177e4 LT |
63 | * 2004-10-18 0.5 thinklight support on A21e, G40, R32, T20, T21, X20 |
64 | * proc file format changed | |
65 | * video_switch command | |
66 | * experimental cmos control | |
67 | * experimental led control | |
68 | * experimental acpi sounds | |
78f81cc4 BD |
69 | * 2004-09-16 0.4 support for module parameters |
70 | * hotkey mask can be prefixed by 0x | |
71 | * video output switching | |
72 | * video expansion control | |
73 | * ultrabay eject support | |
74 | * removed lcd brightness/on/off control, didn't work | |
75 | * 2004-08-17 0.3 support for R40 | |
76 | * lcd off, brightness control | |
77 | * thinklight on/off | |
78 | * 2004-08-14 0.2 support for T series, X20 | |
79 | * bluetooth enable/disable | |
80 | * hotkey events disabled by default | |
81 | * removed fan control, currently useless | |
82 | * 2004-08-09 0.1 initial release, support for X series | |
1da177e4 LT |
83 | */ |
84 | ||
f21f85de | 85 | #include "thinkpad_acpi.h" |
1da177e4 | 86 | |
f9ff43a6 | 87 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); |
78f81cc4 BD |
88 | MODULE_DESCRIPTION(IBM_DESC); |
89 | MODULE_VERSION(IBM_VERSION); | |
90 | MODULE_LICENSE("GPL"); | |
91 | ||
d903ac54 HMH |
92 | /* Please remove this in year 2009 */ |
93 | MODULE_ALIAS("ibm_acpi"); | |
94 | ||
b964b437 HMH |
95 | /* |
96 | * DMI matching for module autoloading | |
97 | * | |
98 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
99 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
100 | * | |
101 | * Only models listed in thinkwiki will be supported, so add yours | |
102 | * if it is not there yet. | |
103 | */ | |
104 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
105 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") | |
106 | ||
107 | /* Non-ancient thinkpads */ | |
108 | MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); | |
109 | MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); | |
110 | ||
111 | /* Ancient thinkpad BIOSes have to be identified by | |
112 | * BIOS type or model number, and there are far less | |
113 | * BIOS types than model numbers... */ | |
114 | IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); | |
115 | IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); | |
116 | IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); | |
117 | ||
1da177e4 LT |
118 | #define __unused __attribute__ ((unused)) |
119 | ||
56b6aeb0 HMH |
120 | /**************************************************************************** |
121 | **************************************************************************** | |
122 | * | |
123 | * ACPI Helpers and device model | |
124 | * | |
125 | **************************************************************************** | |
126 | ****************************************************************************/ | |
127 | ||
128 | /************************************************************************* | |
129 | * ACPI basic handles | |
130 | */ | |
1da177e4 | 131 | |
94954cc6 | 132 | static acpi_handle root_handle; |
1da177e4 LT |
133 | |
134 | #define IBM_HANDLE(object, parent, paths...) \ | |
135 | static acpi_handle object##_handle; \ | |
136 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 137 | static char *object##_path; \ |
1da177e4 LT |
138 | static char *object##_paths[] = { paths } |
139 | ||
78f81cc4 BD |
140 | IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
141 | "\\_SB.PCI.ISA.EC", /* 570 */ | |
142 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
143 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
144 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
145 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
146 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
56b6aeb0 | 147 | ); |
78f81cc4 | 148 | |
56b6aeb0 HMH |
149 | IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
150 | IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 151 | |
56b6aeb0 HMH |
152 | |
153 | /************************************************************************* | |
154 | * Misc ACPI handles | |
155 | */ | |
78f81cc4 BD |
156 | |
157 | IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ | |
158 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ | |
159 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 160 | ); /* all others */ |
78f81cc4 BD |
161 | |
162 | IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ | |
163 | "^HKEY", /* R30, R31 */ | |
164 | "HKEY", /* all others */ | |
56b6aeb0 | 165 | ); /* 570 */ |
78f81cc4 | 166 | |
78f81cc4 | 167 | |
56b6aeb0 HMH |
168 | /************************************************************************* |
169 | * ACPI helpers | |
a8b7a662 HMH |
170 | */ |
171 | ||
1da177e4 LT |
172 | static int acpi_evalf(acpi_handle handle, |
173 | void *res, char *method, char *fmt, ...) | |
174 | { | |
175 | char *fmt0 = fmt; | |
78f81cc4 BD |
176 | struct acpi_object_list params; |
177 | union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; | |
178 | struct acpi_buffer result, *resultp; | |
179 | union acpi_object out_obj; | |
180 | acpi_status status; | |
181 | va_list ap; | |
182 | char res_type; | |
183 | int success; | |
184 | int quiet; | |
1da177e4 LT |
185 | |
186 | if (!*fmt) { | |
187 | printk(IBM_ERR "acpi_evalf() called with empty format\n"); | |
188 | return 0; | |
189 | } | |
190 | ||
191 | if (*fmt == 'q') { | |
192 | quiet = 1; | |
193 | fmt++; | |
194 | } else | |
195 | quiet = 0; | |
196 | ||
197 | res_type = *(fmt++); | |
198 | ||
199 | params.count = 0; | |
200 | params.pointer = &in_objs[0]; | |
201 | ||
202 | va_start(ap, fmt); | |
203 | while (*fmt) { | |
204 | char c = *(fmt++); | |
205 | switch (c) { | |
206 | case 'd': /* int */ | |
207 | in_objs[params.count].integer.value = va_arg(ap, int); | |
208 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
209 | break; | |
78f81cc4 | 210 | /* add more types as needed */ |
1da177e4 LT |
211 | default: |
212 | printk(IBM_ERR "acpi_evalf() called " | |
213 | "with invalid format character '%c'\n", c); | |
214 | return 0; | |
215 | } | |
216 | } | |
217 | va_end(ap); | |
218 | ||
78f81cc4 BD |
219 | if (res_type != 'v') { |
220 | result.length = sizeof(out_obj); | |
221 | result.pointer = &out_obj; | |
222 | resultp = &result; | |
223 | } else | |
224 | resultp = NULL; | |
1da177e4 | 225 | |
78f81cc4 | 226 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
227 | |
228 | switch (res_type) { | |
78f81cc4 | 229 | case 'd': /* int */ |
1da177e4 LT |
230 | if (res) |
231 | *(int *)res = out_obj.integer.value; | |
232 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
233 | break; | |
78f81cc4 | 234 | case 'v': /* void */ |
1da177e4 LT |
235 | success = status == AE_OK; |
236 | break; | |
78f81cc4 | 237 | /* add more types as needed */ |
1da177e4 LT |
238 | default: |
239 | printk(IBM_ERR "acpi_evalf() called " | |
240 | "with invalid format character '%c'\n", res_type); | |
241 | return 0; | |
242 | } | |
243 | ||
56b6aeb0 HMH |
244 | if (!success && !quiet) |
245 | printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", | |
246 | method, fmt0, status); | |
247 | ||
248 | return success; | |
249 | } | |
250 | ||
251 | static void __unused acpi_print_int(acpi_handle handle, char *method) | |
252 | { | |
253 | int i; | |
254 | ||
255 | if (acpi_evalf(handle, &i, method, "d")) | |
256 | printk(IBM_INFO "%s = 0x%x\n", method, i); | |
257 | else | |
258 | printk(IBM_ERR "error calling %s\n", method); | |
259 | } | |
260 | ||
261 | static int acpi_ec_read(int i, u8 * p) | |
262 | { | |
263 | int v; | |
264 | ||
265 | if (ecrd_handle) { | |
266 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
267 | return 0; | |
268 | *p = v; | |
269 | } else { | |
270 | if (ec_read(i, p) < 0) | |
271 | return 0; | |
272 | } | |
273 | ||
274 | return 1; | |
275 | } | |
276 | ||
277 | static int acpi_ec_write(int i, u8 v) | |
278 | { | |
279 | if (ecwr_handle) { | |
280 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
281 | return 0; | |
282 | } else { | |
283 | if (ec_write(i, v) < 0) | |
284 | return 0; | |
285 | } | |
286 | ||
287 | return 1; | |
288 | } | |
289 | ||
290 | static int _sta(acpi_handle handle) | |
291 | { | |
292 | int status; | |
293 | ||
294 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
295 | status = 0; | |
296 | ||
297 | return status; | |
298 | } | |
299 | ||
c9bea99c HMH |
300 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
301 | { | |
302 | if (!cmos_handle) | |
303 | return -ENXIO; | |
304 | ||
305 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
306 | return -EIO; | |
307 | ||
308 | return 0; | |
309 | } | |
310 | ||
56b6aeb0 HMH |
311 | /************************************************************************* |
312 | * ACPI device model | |
313 | */ | |
314 | ||
8d376cd6 | 315 | static void drv_acpi_handle_init(char *name, |
5fba344c HMH |
316 | acpi_handle *handle, acpi_handle parent, |
317 | char **paths, int num_paths, char **path) | |
56b6aeb0 HMH |
318 | { |
319 | int i; | |
320 | acpi_status status; | |
321 | ||
5ae930e6 HMH |
322 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
323 | name); | |
324 | ||
56b6aeb0 HMH |
325 | for (i = 0; i < num_paths; i++) { |
326 | status = acpi_get_handle(parent, paths[i], handle); | |
327 | if (ACPI_SUCCESS(status)) { | |
328 | *path = paths[i]; | |
5ae930e6 HMH |
329 | dbg_printk(TPACPI_DBG_INIT, |
330 | "Found ACPI handle %s for %s\n", | |
331 | *path, name); | |
56b6aeb0 HMH |
332 | return; |
333 | } | |
334 | } | |
335 | ||
5ae930e6 HMH |
336 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
337 | name); | |
56b6aeb0 HMH |
338 | *handle = NULL; |
339 | } | |
340 | ||
8d376cd6 | 341 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
342 | { |
343 | struct ibm_struct *ibm = data; | |
344 | ||
8d376cd6 | 345 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
346 | return; |
347 | ||
8d376cd6 | 348 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
349 | } |
350 | ||
8d376cd6 | 351 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
352 | { |
353 | acpi_status status; | |
5ae930e6 | 354 | int rc; |
56b6aeb0 | 355 | |
8d376cd6 HMH |
356 | BUG_ON(!ibm->acpi); |
357 | ||
358 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
359 | return 0; |
360 | ||
5ae930e6 | 361 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
362 | "setting up ACPI notify for %s\n", ibm->name); |
363 | ||
5ae930e6 HMH |
364 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
365 | if (rc < 0) { | |
366 | printk(IBM_ERR "acpi_bus_get_device(%s) failed: %d\n", | |
367 | ibm->name, rc); | |
56b6aeb0 HMH |
368 | return -ENODEV; |
369 | } | |
370 | ||
8d376cd6 HMH |
371 | acpi_driver_data(ibm->acpi->device) = ibm; |
372 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", | |
643f12db HMH |
373 | IBM_ACPI_EVENT_PREFIX, |
374 | ibm->name); | |
56b6aeb0 | 375 | |
8d376cd6 HMH |
376 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
377 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
378 | if (ACPI_FAILURE(status)) { |
379 | if (status == AE_ALREADY_EXISTS) { | |
380 | printk(IBM_NOTICE "another device driver is already handling %s events\n", | |
381 | ibm->name); | |
382 | } else { | |
383 | printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", | |
384 | ibm->name, status); | |
385 | } | |
386 | return -ENODEV; | |
387 | } | |
8d376cd6 | 388 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
389 | return 0; |
390 | } | |
391 | ||
8d376cd6 | 392 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
393 | { |
394 | return 0; | |
395 | } | |
396 | ||
6700121b | 397 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 398 | { |
5ae930e6 | 399 | int rc; |
56b6aeb0 | 400 | |
fe08bc4b HMH |
401 | dbg_printk(TPACPI_DBG_INIT, |
402 | "registering %s as an ACPI driver\n", ibm->name); | |
403 | ||
8d376cd6 HMH |
404 | BUG_ON(!ibm->acpi); |
405 | ||
406 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
407 | if (!ibm->acpi->driver) { | |
5fba344c HMH |
408 | printk(IBM_ERR "kzalloc(ibm->driver) failed\n"); |
409 | return -ENOMEM; | |
56b6aeb0 HMH |
410 | } |
411 | ||
8d376cd6 HMH |
412 | sprintf(ibm->acpi->driver->name, "%s_%s", IBM_NAME, ibm->name); |
413 | ibm->acpi->driver->ids = ibm->acpi->hid; | |
1ba90e3a | 414 | |
8d376cd6 | 415 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 416 | |
5ae930e6 HMH |
417 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
418 | if (rc < 0) { | |
56b6aeb0 | 419 | printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 420 | ibm->name, rc); |
8d376cd6 HMH |
421 | kfree(ibm->acpi->driver); |
422 | ibm->acpi->driver = NULL; | |
5ae930e6 | 423 | } else if (!rc) |
8d376cd6 | 424 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 425 | |
5ae930e6 | 426 | return rc; |
56b6aeb0 HMH |
427 | } |
428 | ||
429 | ||
430 | /**************************************************************************** | |
431 | **************************************************************************** | |
432 | * | |
433 | * Procfs Helpers | |
434 | * | |
435 | **************************************************************************** | |
436 | ****************************************************************************/ | |
437 | ||
8d376cd6 HMH |
438 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
439 | int count, int *eof, void *data) | |
56b6aeb0 HMH |
440 | { |
441 | struct ibm_struct *ibm = data; | |
442 | int len; | |
443 | ||
444 | if (!ibm || !ibm->read) | |
445 | return -EINVAL; | |
446 | ||
447 | len = ibm->read(page); | |
448 | if (len < 0) | |
449 | return len; | |
450 | ||
451 | if (len <= off + count) | |
452 | *eof = 1; | |
453 | *start = page + off; | |
454 | len -= off; | |
455 | if (len > count) | |
456 | len = count; | |
457 | if (len < 0) | |
458 | len = 0; | |
459 | ||
460 | return len; | |
461 | } | |
462 | ||
8d376cd6 HMH |
463 | static int dispatch_procfs_write(struct file *file, |
464 | const char __user * userbuf, | |
465 | unsigned long count, void *data) | |
56b6aeb0 HMH |
466 | { |
467 | struct ibm_struct *ibm = data; | |
468 | char *kernbuf; | |
469 | int ret; | |
470 | ||
471 | if (!ibm || !ibm->write) | |
472 | return -EINVAL; | |
473 | ||
474 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
475 | if (!kernbuf) | |
476 | return -ENOMEM; | |
1da177e4 | 477 | |
56b6aeb0 HMH |
478 | if (copy_from_user(kernbuf, userbuf, count)) { |
479 | kfree(kernbuf); | |
480 | return -EFAULT; | |
481 | } | |
1da177e4 | 482 | |
56b6aeb0 HMH |
483 | kernbuf[count] = 0; |
484 | strcat(kernbuf, ","); | |
485 | ret = ibm->write(kernbuf); | |
486 | if (ret == 0) | |
487 | ret = count; | |
1da177e4 | 488 | |
56b6aeb0 HMH |
489 | kfree(kernbuf); |
490 | ||
491 | return ret; | |
1da177e4 LT |
492 | } |
493 | ||
494 | static char *next_cmd(char **cmds) | |
495 | { | |
496 | char *start = *cmds; | |
497 | char *end; | |
498 | ||
499 | while ((end = strchr(start, ',')) && end == start) | |
500 | start = end + 1; | |
501 | ||
502 | if (!end) | |
503 | return NULL; | |
504 | ||
505 | *end = 0; | |
506 | *cmds = end + 1; | |
507 | return start; | |
508 | } | |
509 | ||
56b6aeb0 | 510 | |
54ae1501 HMH |
511 | /**************************************************************************** |
512 | **************************************************************************** | |
513 | * | |
7f5d1cd6 | 514 | * Device model: input, hwmon and platform |
54ae1501 HMH |
515 | * |
516 | **************************************************************************** | |
517 | ****************************************************************************/ | |
518 | ||
94954cc6 HMH |
519 | static struct platform_device *tpacpi_pdev; |
520 | static struct class_device *tpacpi_hwmon; | |
7f5d1cd6 | 521 | static struct input_dev *tpacpi_inputdev; |
54ae1501 | 522 | |
e295e850 HMH |
523 | |
524 | static int tpacpi_resume_handler(struct platform_device *pdev) | |
525 | { | |
526 | struct ibm_struct *ibm, *itmp; | |
527 | ||
528 | list_for_each_entry_safe(ibm, itmp, | |
529 | &tpacpi_all_drivers, | |
530 | all_drivers) { | |
531 | if (ibm->resume) | |
532 | (ibm->resume)(); | |
533 | } | |
534 | ||
535 | return 0; | |
536 | } | |
537 | ||
54ae1501 HMH |
538 | static struct platform_driver tpacpi_pdriver = { |
539 | .driver = { | |
540 | .name = IBM_DRVR_NAME, | |
541 | .owner = THIS_MODULE, | |
542 | }, | |
e295e850 | 543 | .resume = tpacpi_resume_handler, |
54ae1501 HMH |
544 | }; |
545 | ||
546 | ||
176750d6 HMH |
547 | /************************************************************************* |
548 | * thinkpad-acpi driver attributes | |
549 | */ | |
550 | ||
551 | /* interface_version --------------------------------------------------- */ | |
552 | static ssize_t tpacpi_driver_interface_version_show( | |
553 | struct device_driver *drv, | |
554 | char *buf) | |
555 | { | |
556 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); | |
557 | } | |
558 | ||
559 | static DRIVER_ATTR(interface_version, S_IRUGO, | |
560 | tpacpi_driver_interface_version_show, NULL); | |
561 | ||
562 | /* debug_level --------------------------------------------------------- */ | |
563 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, | |
564 | char *buf) | |
565 | { | |
566 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
567 | } | |
568 | ||
569 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, | |
570 | const char *buf, size_t count) | |
571 | { | |
572 | unsigned long t; | |
176750d6 | 573 | |
7252374a | 574 | if (parse_strtoul(buf, 0xffff, &t)) |
176750d6 HMH |
575 | return -EINVAL; |
576 | ||
577 | dbg_level = t; | |
578 | ||
579 | return count; | |
580 | } | |
581 | ||
582 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
583 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); | |
584 | ||
585 | /* version ------------------------------------------------------------- */ | |
586 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, | |
587 | char *buf) | |
588 | { | |
589 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", IBM_DESC, IBM_VERSION); | |
590 | } | |
591 | ||
592 | static DRIVER_ATTR(version, S_IRUGO, | |
593 | tpacpi_driver_version_show, NULL); | |
594 | ||
595 | /* --------------------------------------------------------------------- */ | |
596 | ||
597 | static struct driver_attribute* tpacpi_driver_attributes[] = { | |
598 | &driver_attr_debug_level, &driver_attr_version, | |
599 | &driver_attr_interface_version, | |
600 | }; | |
601 | ||
602 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
603 | { | |
604 | int i, res; | |
605 | ||
606 | i = 0; | |
607 | res = 0; | |
608 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
609 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
610 | i++; | |
611 | } | |
612 | ||
613 | return res; | |
614 | } | |
615 | ||
616 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
617 | { | |
618 | int i; | |
619 | ||
620 | for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) | |
621 | driver_remove_file(drv, tpacpi_driver_attributes[i]); | |
622 | } | |
623 | ||
7252374a HMH |
624 | /************************************************************************* |
625 | * sysfs support helpers | |
626 | */ | |
627 | ||
628 | struct attribute_set_obj { | |
629 | struct attribute_set s; | |
630 | struct attribute *a; | |
631 | } __attribute__((packed)); | |
632 | ||
633 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
634 | const char* name) | |
635 | { | |
636 | struct attribute_set_obj *sobj; | |
637 | ||
638 | if (max_members == 0) | |
639 | return NULL; | |
640 | ||
641 | /* Allocates space for implicit NULL at the end too */ | |
642 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
643 | max_members * sizeof(struct attribute *), | |
644 | GFP_KERNEL); | |
645 | if (!sobj) | |
646 | return NULL; | |
647 | sobj->s.max_members = max_members; | |
648 | sobj->s.group.attrs = &sobj->a; | |
649 | sobj->s.group.name = name; | |
650 | ||
651 | return &sobj->s; | |
652 | } | |
653 | ||
654 | /* not multi-threaded safe, use it in a single thread per set */ | |
655 | static int add_to_attr_set(struct attribute_set* s, struct attribute *attr) | |
656 | { | |
657 | if (!s || !attr) | |
658 | return -EINVAL; | |
659 | ||
660 | if (s->members >= s->max_members) | |
661 | return -ENOMEM; | |
662 | ||
663 | s->group.attrs[s->members] = attr; | |
664 | s->members++; | |
665 | ||
666 | return 0; | |
667 | } | |
668 | ||
669 | static int add_many_to_attr_set(struct attribute_set* s, | |
670 | struct attribute **attr, | |
671 | unsigned int count) | |
672 | { | |
673 | int i, res; | |
674 | ||
675 | for (i = 0; i < count; i++) { | |
676 | res = add_to_attr_set(s, attr[i]); | |
677 | if (res) | |
678 | return res; | |
679 | } | |
680 | ||
681 | return 0; | |
682 | } | |
683 | ||
684 | static void delete_attr_set(struct attribute_set* s, struct kobject *kobj) | |
685 | { | |
686 | sysfs_remove_group(kobj, &s->group); | |
687 | destroy_attr_set(s); | |
688 | } | |
689 | ||
690 | static int parse_strtoul(const char *buf, | |
691 | unsigned long max, unsigned long *value) | |
692 | { | |
693 | char *endp; | |
694 | ||
695 | *value = simple_strtoul(buf, &endp, 0); | |
696 | while (*endp && isspace(*endp)) | |
697 | endp++; | |
698 | if (*endp || *value > max) | |
699 | return -EINVAL; | |
700 | ||
701 | return 0; | |
702 | } | |
703 | ||
56b6aeb0 HMH |
704 | /**************************************************************************** |
705 | **************************************************************************** | |
706 | * | |
707 | * Subdrivers | |
708 | * | |
709 | **************************************************************************** | |
710 | ****************************************************************************/ | |
711 | ||
712 | /************************************************************************* | |
142cfc90 | 713 | * thinkpad-acpi init subdriver |
56b6aeb0 HMH |
714 | */ |
715 | ||
a5763f22 | 716 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
717 | { |
718 | printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); | |
719 | printk(IBM_INFO "%s\n", IBM_URL); | |
720 | ||
d5a2f2f1 HMH |
721 | printk(IBM_INFO "ThinkPad BIOS %s, EC %s\n", |
722 | (thinkpad_id.bios_version_str) ? | |
723 | thinkpad_id.bios_version_str : "unknown", | |
724 | (thinkpad_id.ec_version_str) ? | |
725 | thinkpad_id.ec_version_str : "unknown"); | |
726 | ||
727 | if (thinkpad_id.vendor && thinkpad_id.model_str) | |
728 | printk(IBM_INFO "%s %s\n", | |
729 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? | |
730 | "IBM" : ((thinkpad_id.vendor == | |
731 | PCI_VENDOR_ID_LENOVO) ? | |
732 | "Lenovo" : "Unknown vendor"), | |
733 | thinkpad_id.model_str); | |
3945ac36 | 734 | |
1da177e4 LT |
735 | return 0; |
736 | } | |
737 | ||
643f12db | 738 | static int thinkpad_acpi_driver_read(char *p) |
1da177e4 LT |
739 | { |
740 | int len = 0; | |
741 | ||
742 | len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); | |
743 | len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); | |
744 | ||
745 | return len; | |
746 | } | |
747 | ||
a5763f22 HMH |
748 | static struct ibm_struct thinkpad_acpi_driver_data = { |
749 | .name = "driver", | |
750 | .read = thinkpad_acpi_driver_read, | |
751 | }; | |
752 | ||
56b6aeb0 HMH |
753 | /************************************************************************* |
754 | * Hotkey subdriver | |
755 | */ | |
756 | ||
78f81cc4 | 757 | static int hotkey_orig_status; |
ae92bd17 | 758 | static u32 hotkey_orig_mask; |
9b010de5 | 759 | static u32 hotkey_all_mask; |
6a38abbf HMH |
760 | static u32 hotkey_reserved_mask; |
761 | ||
edf0e0e5 | 762 | static u16 *hotkey_keycode_map; |
78f81cc4 | 763 | |
94954cc6 | 764 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 765 | |
74941a69 HMH |
766 | static int hotkey_get_wlsw(int *status) |
767 | { | |
768 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) | |
769 | return -EIO; | |
770 | return 0; | |
771 | } | |
772 | ||
a0416420 HMH |
773 | /* sysfs hotkey enable ------------------------------------------------- */ |
774 | static ssize_t hotkey_enable_show(struct device *dev, | |
775 | struct device_attribute *attr, | |
776 | char *buf) | |
777 | { | |
ae92bd17 HMH |
778 | int res, status; |
779 | u32 mask; | |
a0416420 HMH |
780 | |
781 | res = hotkey_get(&status, &mask); | |
782 | if (res) | |
783 | return res; | |
784 | ||
785 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
786 | } | |
787 | ||
788 | static ssize_t hotkey_enable_store(struct device *dev, | |
789 | struct device_attribute *attr, | |
790 | const char *buf, size_t count) | |
791 | { | |
792 | unsigned long t; | |
ae92bd17 HMH |
793 | int res, status; |
794 | u32 mask; | |
a0416420 HMH |
795 | |
796 | if (parse_strtoul(buf, 1, &t)) | |
797 | return -EINVAL; | |
798 | ||
799 | res = hotkey_get(&status, &mask); | |
800 | if (!res) | |
801 | res = hotkey_set(t, mask); | |
802 | ||
803 | return (res) ? res : count; | |
804 | } | |
805 | ||
806 | static struct device_attribute dev_attr_hotkey_enable = | |
cc4c24e1 | 807 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
a0416420 HMH |
808 | hotkey_enable_show, hotkey_enable_store); |
809 | ||
810 | /* sysfs hotkey mask --------------------------------------------------- */ | |
811 | static ssize_t hotkey_mask_show(struct device *dev, | |
812 | struct device_attribute *attr, | |
813 | char *buf) | |
814 | { | |
ae92bd17 HMH |
815 | int res, status; |
816 | u32 mask; | |
a0416420 HMH |
817 | |
818 | res = hotkey_get(&status, &mask); | |
819 | if (res) | |
820 | return res; | |
821 | ||
ae92bd17 | 822 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", mask); |
a0416420 HMH |
823 | } |
824 | ||
825 | static ssize_t hotkey_mask_store(struct device *dev, | |
826 | struct device_attribute *attr, | |
827 | const char *buf, size_t count) | |
828 | { | |
829 | unsigned long t; | |
ae92bd17 HMH |
830 | int res, status; |
831 | u32 mask; | |
a0416420 | 832 | |
ae92bd17 | 833 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
834 | return -EINVAL; |
835 | ||
836 | res = hotkey_get(&status, &mask); | |
837 | if (!res) | |
838 | hotkey_set(status, t); | |
839 | ||
840 | return (res) ? res : count; | |
841 | } | |
842 | ||
843 | static struct device_attribute dev_attr_hotkey_mask = | |
cc4c24e1 | 844 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
a0416420 HMH |
845 | hotkey_mask_show, hotkey_mask_store); |
846 | ||
847 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
848 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
849 | struct device_attribute *attr, | |
850 | char *buf) | |
851 | { | |
852 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); | |
853 | } | |
854 | ||
855 | static struct device_attribute dev_attr_hotkey_bios_enabled = | |
cc4c24e1 | 856 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
a0416420 HMH |
857 | |
858 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
859 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
860 | struct device_attribute *attr, | |
861 | char *buf) | |
862 | { | |
ae92bd17 | 863 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
864 | } |
865 | ||
866 | static struct device_attribute dev_attr_hotkey_bios_mask = | |
cc4c24e1 | 867 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
a0416420 | 868 | |
9b010de5 HMH |
869 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
870 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
871 | struct device_attribute *attr, | |
872 | char *buf) | |
873 | { | |
874 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_all_mask); | |
875 | } | |
876 | ||
877 | static struct device_attribute dev_attr_hotkey_all_mask = | |
878 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); | |
879 | ||
880 | /* sysfs hotkey recommended_mask --------------------------------------- */ | |
881 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
882 | struct device_attribute *attr, | |
883 | char *buf) | |
884 | { | |
885 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
886 | hotkey_all_mask & ~hotkey_reserved_mask); | |
887 | } | |
888 | ||
889 | static struct device_attribute dev_attr_hotkey_recommended_mask = | |
890 | __ATTR(hotkey_recommended_mask, S_IRUGO, | |
891 | hotkey_recommended_mask_show, NULL); | |
892 | ||
74941a69 HMH |
893 | /* sysfs hotkey radio_sw ----------------------------------------------- */ |
894 | static ssize_t hotkey_radio_sw_show(struct device *dev, | |
895 | struct device_attribute *attr, | |
896 | char *buf) | |
897 | { | |
898 | int res, s; | |
899 | res = hotkey_get_wlsw(&s); | |
900 | if (res < 0) | |
901 | return res; | |
902 | ||
903 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
904 | } | |
905 | ||
906 | static struct device_attribute dev_attr_hotkey_radio_sw = | |
907 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); | |
908 | ||
a0416420 HMH |
909 | /* --------------------------------------------------------------------- */ |
910 | ||
911 | static struct attribute *hotkey_mask_attributes[] = { | |
912 | &dev_attr_hotkey_mask.attr, | |
913 | &dev_attr_hotkey_bios_enabled.attr, | |
914 | &dev_attr_hotkey_bios_mask.attr, | |
9b010de5 HMH |
915 | &dev_attr_hotkey_all_mask.attr, |
916 | &dev_attr_hotkey_recommended_mask.attr, | |
a0416420 HMH |
917 | }; |
918 | ||
a5763f22 | 919 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 920 | { |
edf0e0e5 HMH |
921 | |
922 | static u16 ibm_keycode_map[] __initdata = { | |
923 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
924 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, | |
925 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
926 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
927 | /* Scan codes 0x0C to 0x0F: Other ACPI HKEY hot keys */ | |
928 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ | |
929 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
930 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
931 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ | |
932 | /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */ | |
933 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ | |
934 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ | |
935 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ | |
936 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
937 | KEY_RESERVED, /* 0x14: VOLUME UP */ | |
938 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
939 | KEY_RESERVED, /* 0x16: MUTE */ | |
940 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ | |
941 | /* (assignments unknown, please report if found) */ | |
942 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
943 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
944 | }; | |
945 | static u16 lenovo_keycode_map[] __initdata = { | |
946 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ | |
947 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
948 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, | |
949 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
950 | /* Scan codes 0x0C to 0x0F: Other ACPI HKEY hot keys */ | |
951 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ | |
952 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
953 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
954 | KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ | |
955 | /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */ | |
956 | KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ | |
957 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ | |
958 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ | |
959 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
960 | KEY_RESERVED, /* 0x14: VOLUME UP */ | |
961 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
962 | KEY_RESERVED, /* 0x16: MUTE */ | |
963 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ | |
964 | /* (assignments unknown, please report if found) */ | |
965 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
966 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
967 | }; | |
968 | ||
969 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) | |
970 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) | |
971 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) | |
972 | ||
6a38abbf | 973 | int res, i; |
74941a69 | 974 | int status; |
b86c4722 | 975 | |
fe08bc4b HMH |
976 | vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); |
977 | ||
6a38abbf HMH |
978 | BUG_ON(!tpacpi_inputdev); |
979 | ||
8d376cd6 | 980 | IBM_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 981 | mutex_init(&hotkey_mutex); |
5fba344c | 982 | |
56b6aeb0 | 983 | /* hotkey not supported on 570 */ |
d8fd94d9 | 984 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 985 | |
fe08bc4b | 986 | vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", |
d8fd94d9 | 987 | str_supported(tp_features.hotkey)); |
fe08bc4b | 988 | |
d8fd94d9 | 989 | if (tp_features.hotkey) { |
74941a69 | 990 | hotkey_dev_attributes = create_attr_set(7, NULL); |
a0416420 HMH |
991 | if (!hotkey_dev_attributes) |
992 | return -ENOMEM; | |
993 | res = add_to_attr_set(hotkey_dev_attributes, | |
994 | &dev_attr_hotkey_enable.attr); | |
995 | if (res) | |
996 | return res; | |
997 | ||
56b6aeb0 HMH |
998 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
999 | A30, R30, R31, T20-22, X20-21, X22-24 */ | |
d8fd94d9 HMH |
1000 | tp_features.hotkey_mask = |
1001 | acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); | |
56b6aeb0 | 1002 | |
fe08bc4b | 1003 | vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", |
d8fd94d9 | 1004 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 1005 | |
9b010de5 HMH |
1006 | if (tp_features.hotkey_mask) { |
1007 | /* MHKA available in A31, R40, R40e, T4x, X31, and later */ | |
1008 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
1009 | "MHKA", "qd")) | |
1010 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
1011 | } | |
1012 | ||
b86c4722 | 1013 | res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask); |
a0416420 HMH |
1014 | if (!res && tp_features.hotkey_mask) { |
1015 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
1016 | hotkey_mask_attributes, | |
1017 | ARRAY_SIZE(hotkey_mask_attributes)); | |
1018 | } | |
74941a69 HMH |
1019 | |
1020 | /* Not all thinkpads have a hardware radio switch */ | |
1021 | if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
1022 | tp_features.hotkey_wlsw = 1; | |
1023 | printk(IBM_INFO | |
1024 | "radio switch found; radios are %s\n", | |
1025 | enabled(status, 0)); | |
1026 | res = add_to_attr_set(hotkey_dev_attributes, | |
1027 | &dev_attr_hotkey_radio_sw.attr); | |
1028 | } | |
1029 | ||
a0416420 HMH |
1030 | if (!res) |
1031 | res = register_attr_set_with_sysfs( | |
1032 | hotkey_dev_attributes, | |
1033 | &tpacpi_pdev->dev.kobj); | |
b86c4722 HMH |
1034 | if (res) |
1035 | return res; | |
6a38abbf | 1036 | |
edf0e0e5 HMH |
1037 | /* Set up key map */ |
1038 | ||
1039 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, | |
1040 | GFP_KERNEL); | |
1041 | if (!hotkey_keycode_map) { | |
1042 | printk(IBM_ERR "failed to allocate memory for key map\n"); | |
1043 | return -ENOMEM; | |
1044 | } | |
1045 | ||
1046 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { | |
1047 | dbg_printk(TPACPI_DBG_INIT, | |
1048 | "using Lenovo default hot key map\n"); | |
1049 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, | |
1050 | TPACPI_HOTKEY_MAP_SIZE); | |
1051 | } else { | |
1052 | dbg_printk(TPACPI_DBG_INIT, | |
1053 | "using IBM default hot key map\n"); | |
1054 | memcpy(hotkey_keycode_map, &ibm_keycode_map, | |
1055 | TPACPI_HOTKEY_MAP_SIZE); | |
1056 | } | |
1057 | ||
1a343760 HMH |
1058 | #ifndef CONFIG_THINKPAD_ACPI_INPUT_ENABLED |
1059 | for (i = 0; i < 12; i++) | |
1060 | hotkey_keycode_map[i] = KEY_UNKNOWN; | |
1061 | #endif /* ! CONFIG_THINKPAD_ACPI_INPUT_ENABLED */ | |
1062 | ||
6a38abbf HMH |
1063 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
1064 | set_bit(EV_MSC, tpacpi_inputdev->evbit); | |
1065 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); | |
edf0e0e5 HMH |
1066 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
1067 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
1068 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
1069 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
6a38abbf HMH |
1070 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
1071 | set_bit(hotkey_keycode_map[i], | |
1072 | tpacpi_inputdev->keybit); | |
1073 | } else { | |
1074 | if (i < sizeof(hotkey_reserved_mask)*8) | |
1075 | hotkey_reserved_mask |= 1 << i; | |
1076 | } | |
1077 | } | |
1078 | ||
5c29d58f HMH |
1079 | if (tp_features.hotkey_wlsw) { |
1080 | set_bit(EV_SW, tpacpi_inputdev->evbit); | |
1081 | set_bit(SW_RADIO, tpacpi_inputdev->swbit); | |
1082 | } | |
1083 | ||
1a343760 HMH |
1084 | #ifdef CONFIG_THINKPAD_ACPI_INPUT_ENABLED |
1085 | dbg_printk(TPACPI_DBG_INIT, | |
1086 | "enabling hot key handling\n"); | |
1087 | res = hotkey_set(1, (hotkey_all_mask & ~hotkey_reserved_mask) | |
1088 | | hotkey_orig_mask); | |
1089 | if (res) | |
1090 | return res; | |
1091 | #endif /* CONFIG_THINKPAD_ACPI_INPUT_ENABLED */ | |
56b6aeb0 HMH |
1092 | } |
1093 | ||
d8fd94d9 | 1094 | return (tp_features.hotkey)? 0 : 1; |
56b6aeb0 HMH |
1095 | } |
1096 | ||
1097 | static void hotkey_exit(void) | |
1098 | { | |
b86c4722 HMH |
1099 | int res; |
1100 | ||
d8fd94d9 | 1101 | if (tp_features.hotkey) { |
fe08bc4b | 1102 | dbg_printk(TPACPI_DBG_EXIT, "restoring original hotkey mask\n"); |
b86c4722 HMH |
1103 | res = hotkey_set(hotkey_orig_status, hotkey_orig_mask); |
1104 | if (res) | |
1105 | printk(IBM_ERR "failed to restore hotkey to BIOS defaults\n"); | |
5fba344c | 1106 | } |
a0416420 HMH |
1107 | |
1108 | if (hotkey_dev_attributes) { | |
1109 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
1110 | hotkey_dev_attributes = NULL; | |
1111 | } | |
56b6aeb0 HMH |
1112 | } |
1113 | ||
6a38abbf HMH |
1114 | static void tpacpi_input_send_key(unsigned int scancode, |
1115 | unsigned int keycode) | |
1116 | { | |
1117 | if (keycode != KEY_RESERVED) { | |
1118 | input_report_key(tpacpi_inputdev, keycode, 1); | |
1119 | if (keycode == KEY_UNKNOWN) | |
1120 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1121 | scancode); | |
1122 | input_sync(tpacpi_inputdev); | |
1123 | ||
1124 | input_report_key(tpacpi_inputdev, keycode, 0); | |
1125 | if (keycode == KEY_UNKNOWN) | |
1126 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, | |
1127 | scancode); | |
1128 | input_sync(tpacpi_inputdev); | |
1129 | } | |
1130 | } | |
1131 | ||
5c29d58f HMH |
1132 | static void tpacpi_input_send_radiosw(void) |
1133 | { | |
1134 | int wlsw; | |
1135 | ||
1136 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) | |
1137 | input_report_switch(tpacpi_inputdev, | |
1138 | SW_RADIO, !!wlsw); | |
1139 | } | |
1140 | ||
56b6aeb0 HMH |
1141 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
1142 | { | |
6a38abbf HMH |
1143 | u32 hkey; |
1144 | unsigned int keycode, scancode; | |
1145 | int sendacpi = 1; | |
56b6aeb0 | 1146 | |
ae92bd17 | 1147 | if (event == 0x80 && acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { |
6a38abbf HMH |
1148 | if (tpacpi_inputdev->users > 0) { |
1149 | switch (hkey >> 12) { | |
1150 | case 1: | |
1151 | /* 0x1000-0x1FFF: key presses */ | |
1152 | scancode = hkey & 0xfff; | |
1153 | if (scancode > 0 && scancode < 0x21) { | |
1154 | scancode--; | |
1155 | keycode = hotkey_keycode_map[scancode]; | |
1156 | tpacpi_input_send_key(scancode, keycode); | |
1157 | sendacpi = (keycode == KEY_RESERVED | |
1158 | || keycode == KEY_UNKNOWN); | |
1159 | } else { | |
1160 | printk(IBM_ERR | |
1161 | "hotkey 0x%04x out of range for keyboard map\n", | |
1162 | hkey); | |
1163 | } | |
1164 | break; | |
1165 | case 5: | |
1166 | /* 0x5000-0x5FFF: LID */ | |
1167 | /* we don't handle it through this path, just | |
1168 | * eat up known LID events */ | |
1169 | if (hkey != 0x5001 && hkey != 0x5002) { | |
1170 | printk(IBM_ERR | |
1171 | "unknown LID-related hotkey event: 0x%04x\n", | |
1172 | hkey); | |
1173 | } | |
1174 | break; | |
5c29d58f HMH |
1175 | case 7: |
1176 | /* 0x7000-0x7FFF: misc */ | |
1177 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { | |
1178 | tpacpi_input_send_radiosw(); | |
1179 | sendacpi = 0; | |
1180 | break; | |
1181 | } | |
1182 | /* fallthrough to default */ | |
6a38abbf HMH |
1183 | default: |
1184 | /* case 2: dock-related */ | |
1185 | /* 0x2305 - T43 waking up due to bay lever eject while aslept */ | |
1186 | /* case 3: ultra-bay related. maybe bay in dock? */ | |
1187 | /* 0x3003 - T43 after wake up by bay lever eject (0x2305) */ | |
1188 | printk(IBM_NOTICE "unhandled hotkey event 0x%04x\n", hkey); | |
1189 | } | |
1190 | } | |
1191 | ||
1192 | if (sendacpi) | |
1193 | acpi_bus_generate_event(ibm->acpi->device, event, hkey); | |
ae92bd17 HMH |
1194 | } else { |
1195 | printk(IBM_ERR "unknown hotkey notification event %d\n", event); | |
8d376cd6 | 1196 | acpi_bus_generate_event(ibm->acpi->device, event, 0); |
56b6aeb0 HMH |
1197 | } |
1198 | } | |
1199 | ||
5c29d58f HMH |
1200 | static void hotkey_resume(void) |
1201 | { | |
1202 | tpacpi_input_send_radiosw(); | |
1203 | } | |
1204 | ||
40ca9fdf HMH |
1205 | /* |
1206 | * Call with hotkey_mutex held | |
1207 | */ | |
ae92bd17 | 1208 | static int hotkey_get(int *status, u32 *mask) |
1da177e4 LT |
1209 | { |
1210 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
b86c4722 | 1211 | return -EIO; |
78f81cc4 | 1212 | |
d8fd94d9 | 1213 | if (tp_features.hotkey_mask) |
78f81cc4 | 1214 | if (!acpi_evalf(hkey_handle, mask, "DHKN", "d")) |
b86c4722 | 1215 | return -EIO; |
78f81cc4 | 1216 | |
b86c4722 | 1217 | return 0; |
1da177e4 LT |
1218 | } |
1219 | ||
40ca9fdf HMH |
1220 | /* |
1221 | * Call with hotkey_mutex held | |
1222 | */ | |
ae92bd17 | 1223 | static int hotkey_set(int status, u32 mask) |
1da177e4 LT |
1224 | { |
1225 | int i; | |
1226 | ||
1227 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
b86c4722 | 1228 | return -EIO; |
1da177e4 | 1229 | |
d8fd94d9 | 1230 | if (tp_features.hotkey_mask) |
78f81cc4 BD |
1231 | for (i = 0; i < 32; i++) { |
1232 | int bit = ((1 << i) & mask) != 0; | |
1233 | if (!acpi_evalf(hkey_handle, | |
1234 | NULL, "MHKM", "vdd", i + 1, bit)) | |
b86c4722 | 1235 | return -EIO; |
78f81cc4 | 1236 | } |
1da177e4 | 1237 | |
b86c4722 | 1238 | return 0; |
1da177e4 LT |
1239 | } |
1240 | ||
a0416420 | 1241 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 1242 | static int hotkey_read(char *p) |
1da177e4 | 1243 | { |
ae92bd17 HMH |
1244 | int res, status; |
1245 | u32 mask; | |
1da177e4 LT |
1246 | int len = 0; |
1247 | ||
d8fd94d9 | 1248 | if (!tp_features.hotkey) { |
78f81cc4 BD |
1249 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1250 | return len; | |
1251 | } | |
1252 | ||
40ca9fdf HMH |
1253 | res = mutex_lock_interruptible(&hotkey_mutex); |
1254 | if (res < 0) | |
1255 | return res; | |
b86c4722 | 1256 | res = hotkey_get(&status, &mask); |
40ca9fdf | 1257 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
1258 | if (res) |
1259 | return res; | |
1da177e4 LT |
1260 | |
1261 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
d8fd94d9 | 1262 | if (tp_features.hotkey_mask) { |
ae92bd17 | 1263 | len += sprintf(p + len, "mask:\t\t0x%08x\n", mask); |
1da177e4 LT |
1264 | len += sprintf(p + len, |
1265 | "commands:\tenable, disable, reset, <mask>\n"); | |
1266 | } else { | |
1267 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
1268 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
1269 | } | |
1270 | ||
1271 | return len; | |
1272 | } | |
1273 | ||
78f81cc4 | 1274 | static int hotkey_write(char *buf) |
1da177e4 | 1275 | { |
ae92bd17 HMH |
1276 | int res, status; |
1277 | u32 mask; | |
1da177e4 LT |
1278 | char *cmd; |
1279 | int do_cmd = 0; | |
1280 | ||
d8fd94d9 | 1281 | if (!tp_features.hotkey) |
1da177e4 LT |
1282 | return -ENODEV; |
1283 | ||
40ca9fdf HMH |
1284 | res = mutex_lock_interruptible(&hotkey_mutex); |
1285 | if (res < 0) | |
1286 | return res; | |
1287 | ||
b86c4722 HMH |
1288 | res = hotkey_get(&status, &mask); |
1289 | if (res) | |
40ca9fdf | 1290 | goto errexit; |
78f81cc4 | 1291 | |
40ca9fdf | 1292 | res = 0; |
1da177e4 LT |
1293 | while ((cmd = next_cmd(&buf))) { |
1294 | if (strlencmp(cmd, "enable") == 0) { | |
1295 | status = 1; | |
1296 | } else if (strlencmp(cmd, "disable") == 0) { | |
1297 | status = 0; | |
1298 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
1299 | status = hotkey_orig_status; |
1300 | mask = hotkey_orig_mask; | |
1da177e4 LT |
1301 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
1302 | /* mask set */ | |
1303 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
1304 | /* mask set */ | |
40ca9fdf HMH |
1305 | } else { |
1306 | res = -EINVAL; | |
1307 | goto errexit; | |
1308 | } | |
1da177e4 LT |
1309 | do_cmd = 1; |
1310 | } | |
1311 | ||
40ca9fdf | 1312 | if (do_cmd) |
b86c4722 | 1313 | res = hotkey_set(status, mask); |
1da177e4 | 1314 | |
40ca9fdf HMH |
1315 | errexit: |
1316 | mutex_unlock(&hotkey_mutex); | |
1317 | return res; | |
78f81cc4 | 1318 | } |
1da177e4 | 1319 | |
1ba90e3a TR |
1320 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
1321 | {IBM_HKEY_HID, 0}, | |
1322 | {"", 0}, | |
1323 | }; | |
1324 | ||
8d376cd6 | 1325 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 1326 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
1327 | .notify = hotkey_notify, |
1328 | .handle = &hkey_handle, | |
1329 | .type = ACPI_DEVICE_NOTIFY, | |
1330 | }; | |
1331 | ||
a5763f22 HMH |
1332 | static struct ibm_struct hotkey_driver_data = { |
1333 | .name = "hotkey", | |
a5763f22 HMH |
1334 | .read = hotkey_read, |
1335 | .write = hotkey_write, | |
1336 | .exit = hotkey_exit, | |
5c29d58f | 1337 | .resume = hotkey_resume, |
8d376cd6 | 1338 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
1339 | }; |
1340 | ||
56b6aeb0 HMH |
1341 | /************************************************************************* |
1342 | * Bluetooth subdriver | |
1343 | */ | |
1da177e4 | 1344 | |
d3a6ade4 HMH |
1345 | /* sysfs bluetooth enable ---------------------------------------------- */ |
1346 | static ssize_t bluetooth_enable_show(struct device *dev, | |
1347 | struct device_attribute *attr, | |
1348 | char *buf) | |
1349 | { | |
1350 | int status; | |
1351 | ||
1352 | status = bluetooth_get_radiosw(); | |
1353 | if (status < 0) | |
1354 | return status; | |
1355 | ||
1356 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
1357 | } | |
1358 | ||
1359 | static ssize_t bluetooth_enable_store(struct device *dev, | |
1360 | struct device_attribute *attr, | |
1361 | const char *buf, size_t count) | |
1362 | { | |
1363 | unsigned long t; | |
1364 | int res; | |
1365 | ||
1366 | if (parse_strtoul(buf, 1, &t)) | |
1367 | return -EINVAL; | |
1368 | ||
1369 | res = bluetooth_set_radiosw(t); | |
1370 | ||
1371 | return (res) ? res : count; | |
1372 | } | |
1373 | ||
1374 | static struct device_attribute dev_attr_bluetooth_enable = | |
cc4c24e1 | 1375 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
1376 | bluetooth_enable_show, bluetooth_enable_store); |
1377 | ||
1378 | /* --------------------------------------------------------------------- */ | |
1379 | ||
1380 | static struct attribute *bluetooth_attributes[] = { | |
1381 | &dev_attr_bluetooth_enable.attr, | |
1382 | NULL | |
1383 | }; | |
1384 | ||
1385 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
1386 | .attrs = bluetooth_attributes, |
1387 | }; | |
1388 | ||
a5763f22 | 1389 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 1390 | { |
d3a6ade4 | 1391 | int res; |
d6fdd1e9 HMH |
1392 | int status = 0; |
1393 | ||
fe08bc4b HMH |
1394 | vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); |
1395 | ||
8d376cd6 | 1396 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1397 | |
78f81cc4 BD |
1398 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1399 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
d8fd94d9 | 1400 | tp_features.bluetooth = hkey_handle && |
d6fdd1e9 HMH |
1401 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
1402 | ||
1403 | vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", | |
1404 | str_supported(tp_features.bluetooth), | |
1405 | status); | |
1406 | ||
d3a6ade4 HMH |
1407 | if (tp_features.bluetooth) { |
1408 | if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
1409 | /* no bluetooth hardware present in system */ | |
1410 | tp_features.bluetooth = 0; | |
1411 | dbg_printk(TPACPI_DBG_INIT, | |
1412 | "bluetooth hardware not installed\n"); | |
1413 | } else { | |
1414 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
1415 | &bluetooth_attr_group); | |
1416 | if (res) | |
1417 | return res; | |
1418 | } | |
d6fdd1e9 | 1419 | } |
fe08bc4b | 1420 | |
d8fd94d9 | 1421 | return (tp_features.bluetooth)? 0 : 1; |
1da177e4 LT |
1422 | } |
1423 | ||
d3a6ade4 HMH |
1424 | static void bluetooth_exit(void) |
1425 | { | |
1426 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
1427 | &bluetooth_attr_group); | |
1428 | } | |
1429 | ||
d6fdd1e9 | 1430 | static int bluetooth_get_radiosw(void) |
1da177e4 LT |
1431 | { |
1432 | int status; | |
1433 | ||
d6fdd1e9 HMH |
1434 | if (!tp_features.bluetooth) |
1435 | return -ENODEV; | |
1da177e4 | 1436 | |
d6fdd1e9 HMH |
1437 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
1438 | return -EIO; | |
1439 | ||
1440 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); | |
1441 | } | |
1442 | ||
1443 | static int bluetooth_set_radiosw(int radio_on) | |
1444 | { | |
1445 | int status; | |
1446 | ||
1447 | if (!tp_features.bluetooth) | |
1448 | return -ENODEV; | |
1449 | ||
1450 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
1451 | return -EIO; | |
1452 | if (radio_on) | |
1453 | status |= TP_ACPI_BLUETOOTH_RADIOSSW; | |
1454 | else | |
1455 | status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; | |
1456 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
1457 | return -EIO; | |
1458 | ||
1459 | return 0; | |
1da177e4 LT |
1460 | } |
1461 | ||
d3a6ade4 | 1462 | /* procfs -------------------------------------------------------------- */ |
78f81cc4 | 1463 | static int bluetooth_read(char *p) |
1da177e4 LT |
1464 | { |
1465 | int len = 0; | |
d6fdd1e9 | 1466 | int status = bluetooth_get_radiosw(); |
1da177e4 | 1467 | |
d8fd94d9 | 1468 | if (!tp_features.bluetooth) |
1da177e4 | 1469 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1da177e4 | 1470 | else { |
d6fdd1e9 HMH |
1471 | len += sprintf(p + len, "status:\t\t%s\n", |
1472 | (status)? "enabled" : "disabled"); | |
1da177e4 LT |
1473 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1474 | } | |
1475 | ||
1476 | return len; | |
1477 | } | |
1478 | ||
78f81cc4 | 1479 | static int bluetooth_write(char *buf) |
1da177e4 | 1480 | { |
1da177e4 | 1481 | char *cmd; |
1da177e4 | 1482 | |
d8fd94d9 | 1483 | if (!tp_features.bluetooth) |
78f81cc4 | 1484 | return -ENODEV; |
1da177e4 LT |
1485 | |
1486 | while ((cmd = next_cmd(&buf))) { | |
1487 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1488 | bluetooth_set_radiosw(1); |
1da177e4 | 1489 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1490 | bluetooth_set_radiosw(0); |
1da177e4 LT |
1491 | } else |
1492 | return -EINVAL; | |
1da177e4 LT |
1493 | } |
1494 | ||
1da177e4 LT |
1495 | return 0; |
1496 | } | |
1497 | ||
a5763f22 HMH |
1498 | static struct ibm_struct bluetooth_driver_data = { |
1499 | .name = "bluetooth", | |
1500 | .read = bluetooth_read, | |
1501 | .write = bluetooth_write, | |
d3a6ade4 | 1502 | .exit = bluetooth_exit, |
a5763f22 HMH |
1503 | }; |
1504 | ||
56b6aeb0 HMH |
1505 | /************************************************************************* |
1506 | * Wan subdriver | |
1507 | */ | |
1508 | ||
d3a6ade4 HMH |
1509 | /* sysfs wan enable ---------------------------------------------------- */ |
1510 | static ssize_t wan_enable_show(struct device *dev, | |
1511 | struct device_attribute *attr, | |
1512 | char *buf) | |
1513 | { | |
1514 | int status; | |
1515 | ||
1516 | status = wan_get_radiosw(); | |
1517 | if (status < 0) | |
1518 | return status; | |
1519 | ||
1520 | return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); | |
1521 | } | |
1522 | ||
1523 | static ssize_t wan_enable_store(struct device *dev, | |
1524 | struct device_attribute *attr, | |
1525 | const char *buf, size_t count) | |
1526 | { | |
1527 | unsigned long t; | |
1528 | int res; | |
1529 | ||
1530 | if (parse_strtoul(buf, 1, &t)) | |
1531 | return -EINVAL; | |
1532 | ||
1533 | res = wan_set_radiosw(t); | |
1534 | ||
1535 | return (res) ? res : count; | |
1536 | } | |
1537 | ||
1538 | static struct device_attribute dev_attr_wan_enable = | |
cc4c24e1 | 1539 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
d3a6ade4 HMH |
1540 | wan_enable_show, wan_enable_store); |
1541 | ||
1542 | /* --------------------------------------------------------------------- */ | |
1543 | ||
1544 | static struct attribute *wan_attributes[] = { | |
1545 | &dev_attr_wan_enable.attr, | |
1546 | NULL | |
1547 | }; | |
1548 | ||
1549 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
1550 | .attrs = wan_attributes, |
1551 | }; | |
1552 | ||
a5763f22 | 1553 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 1554 | { |
d3a6ade4 | 1555 | int res; |
d6fdd1e9 HMH |
1556 | int status = 0; |
1557 | ||
fe08bc4b HMH |
1558 | vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); |
1559 | ||
8d376cd6 | 1560 | IBM_ACPIHANDLE_INIT(hkey); |
5fba344c | 1561 | |
d8fd94d9 | 1562 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
1563 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
1564 | ||
1565 | vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", | |
1566 | str_supported(tp_features.wan), | |
1567 | status); | |
1568 | ||
d3a6ade4 HMH |
1569 | if (tp_features.wan) { |
1570 | if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
1571 | /* no wan hardware present in system */ | |
1572 | tp_features.wan = 0; | |
1573 | dbg_printk(TPACPI_DBG_INIT, | |
1574 | "wan hardware not installed\n"); | |
1575 | } else { | |
1576 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
1577 | &wan_attr_group); | |
1578 | if (res) | |
1579 | return res; | |
1580 | } | |
d6fdd1e9 | 1581 | } |
fe08bc4b | 1582 | |
d8fd94d9 | 1583 | return (tp_features.wan)? 0 : 1; |
42adb53c JF |
1584 | } |
1585 | ||
d3a6ade4 HMH |
1586 | static void wan_exit(void) |
1587 | { | |
1588 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
1589 | &wan_attr_group); | |
1590 | } | |
1591 | ||
d6fdd1e9 | 1592 | static int wan_get_radiosw(void) |
42adb53c JF |
1593 | { |
1594 | int status; | |
1595 | ||
d6fdd1e9 HMH |
1596 | if (!tp_features.wan) |
1597 | return -ENODEV; | |
42adb53c | 1598 | |
d6fdd1e9 HMH |
1599 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
1600 | return -EIO; | |
1601 | ||
1602 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); | |
1603 | } | |
1604 | ||
1605 | static int wan_set_radiosw(int radio_on) | |
1606 | { | |
1607 | int status; | |
1608 | ||
1609 | if (!tp_features.wan) | |
1610 | return -ENODEV; | |
1611 | ||
1612 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) | |
1613 | return -EIO; | |
1614 | if (radio_on) | |
1615 | status |= TP_ACPI_WANCARD_RADIOSSW; | |
1616 | else | |
1617 | status &= ~TP_ACPI_WANCARD_RADIOSSW; | |
1618 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
1619 | return -EIO; | |
1620 | ||
1621 | return 0; | |
42adb53c JF |
1622 | } |
1623 | ||
d3a6ade4 | 1624 | /* procfs -------------------------------------------------------------- */ |
42adb53c JF |
1625 | static int wan_read(char *p) |
1626 | { | |
1627 | int len = 0; | |
d6fdd1e9 | 1628 | int status = wan_get_radiosw(); |
42adb53c | 1629 | |
d8fd94d9 | 1630 | if (!tp_features.wan) |
42adb53c | 1631 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
42adb53c | 1632 | else { |
d6fdd1e9 HMH |
1633 | len += sprintf(p + len, "status:\t\t%s\n", |
1634 | (status)? "enabled" : "disabled"); | |
42adb53c JF |
1635 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
1636 | } | |
1637 | ||
1638 | return len; | |
1639 | } | |
1640 | ||
1641 | static int wan_write(char *buf) | |
1642 | { | |
42adb53c | 1643 | char *cmd; |
42adb53c | 1644 | |
d8fd94d9 | 1645 | if (!tp_features.wan) |
42adb53c JF |
1646 | return -ENODEV; |
1647 | ||
1648 | while ((cmd = next_cmd(&buf))) { | |
1649 | if (strlencmp(cmd, "enable") == 0) { | |
d6fdd1e9 | 1650 | wan_set_radiosw(1); |
42adb53c | 1651 | } else if (strlencmp(cmd, "disable") == 0) { |
d6fdd1e9 | 1652 | wan_set_radiosw(0); |
42adb53c JF |
1653 | } else |
1654 | return -EINVAL; | |
42adb53c JF |
1655 | } |
1656 | ||
42adb53c JF |
1657 | return 0; |
1658 | } | |
1659 | ||
a5763f22 HMH |
1660 | static struct ibm_struct wan_driver_data = { |
1661 | .name = "wan", | |
1662 | .read = wan_read, | |
1663 | .write = wan_write, | |
d3a6ade4 | 1664 | .exit = wan_exit, |
92641177 | 1665 | .flags.experimental = 1, |
a5763f22 HMH |
1666 | }; |
1667 | ||
56b6aeb0 HMH |
1668 | /************************************************************************* |
1669 | * Video subdriver | |
1670 | */ | |
1671 | ||
9a8e1738 HMH |
1672 | static enum video_access_mode video_supported; |
1673 | static int video_orig_autosw; | |
78f81cc4 | 1674 | |
56b6aeb0 HMH |
1675 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
1676 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
1677 | "\\_SB.PCI0.VID0", /* 770e */ | |
1678 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
1679 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
1680 | ); /* R30, R31 */ | |
1681 | ||
1682 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
1683 | ||
a5763f22 | 1684 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 1685 | { |
78f81cc4 BD |
1686 | int ivga; |
1687 | ||
fe08bc4b HMH |
1688 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
1689 | ||
8d376cd6 HMH |
1690 | IBM_ACPIHANDLE_INIT(vid); |
1691 | IBM_ACPIHANDLE_INIT(vid2); | |
5fba344c | 1692 | |
78f81cc4 BD |
1693 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
1694 | /* G41, assume IVGA doesn't change */ | |
1695 | vid_handle = vid2_handle; | |
1696 | ||
1697 | if (!vid_handle) | |
1698 | /* video switching not supported on R30, R31 */ | |
efa27145 | 1699 | video_supported = TPACPI_VIDEO_NONE; |
78f81cc4 BD |
1700 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
1701 | /* 570 */ | |
efa27145 | 1702 | video_supported = TPACPI_VIDEO_570; |
78f81cc4 BD |
1703 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
1704 | /* 600e/x, 770e, 770x */ | |
efa27145 | 1705 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
1706 | else |
1707 | /* all others */ | |
efa27145 | 1708 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 1709 | |
fe08bc4b HMH |
1710 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
1711 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
1712 | video_supported); | |
1713 | ||
5fba344c | 1714 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
1da177e4 LT |
1715 | } |
1716 | ||
56b6aeb0 HMH |
1717 | static void video_exit(void) |
1718 | { | |
83f34724 HMH |
1719 | dbg_printk(TPACPI_DBG_EXIT, |
1720 | "restoring original video autoswitch mode\n"); | |
1721 | if (video_autosw_set(video_orig_autosw)) | |
1722 | printk(IBM_ERR "error while trying to restore original " | |
1723 | "video autoswitch mode\n"); | |
56b6aeb0 HMH |
1724 | } |
1725 | ||
83f34724 | 1726 | static int video_outputsw_get(void) |
1da177e4 LT |
1727 | { |
1728 | int status = 0; | |
1729 | int i; | |
1730 | ||
83f34724 HMH |
1731 | switch (video_supported) { |
1732 | case TPACPI_VIDEO_570: | |
1733 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
1734 | TP_ACPI_VIDEO_570_PHSCMD)) | |
1735 | return -EIO; | |
1736 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
1737 | break; | |
1738 | case TPACPI_VIDEO_770: | |
1739 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1740 | return -EIO; | |
1741 | if (i) | |
1742 | status |= TP_ACPI_VIDEO_S_LCD; | |
1743 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1744 | return -EIO; | |
1745 | if (i) | |
1746 | status |= TP_ACPI_VIDEO_S_CRT; | |
1747 | break; | |
1748 | case TPACPI_VIDEO_NEW: | |
1749 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
1750 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
1751 | return -EIO; | |
1752 | if (i) | |
1753 | status |= TP_ACPI_VIDEO_S_CRT; | |
1754 | ||
1755 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
1756 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
1757 | return -EIO; | |
1758 | if (i) | |
1759 | status |= TP_ACPI_VIDEO_S_LCD; | |
1760 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
1761 | return -EIO; | |
1762 | if (i) | |
1763 | status |= TP_ACPI_VIDEO_S_DVI; | |
1764 | break; | |
1765 | default: | |
1766 | return -ENOSYS; | |
78f81cc4 BD |
1767 | } |
1768 | ||
1769 | return status; | |
1770 | } | |
1da177e4 | 1771 | |
83f34724 | 1772 | static int video_outputsw_set(int status) |
78f81cc4 | 1773 | { |
83f34724 HMH |
1774 | int autosw; |
1775 | int res = 0; | |
1776 | ||
1777 | switch (video_supported) { | |
1778 | case TPACPI_VIDEO_570: | |
1779 | res = acpi_evalf(NULL, NULL, | |
1780 | "\\_SB.PHS2", "vdd", | |
1781 | TP_ACPI_VIDEO_570_PHS2CMD, | |
1782 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
1783 | break; | |
1784 | case TPACPI_VIDEO_770: | |
1785 | autosw = video_autosw_get(); | |
1786 | if (autosw < 0) | |
1787 | return autosw; | |
1da177e4 | 1788 | |
83f34724 HMH |
1789 | res = video_autosw_set(1); |
1790 | if (res) | |
1791 | return res; | |
1792 | res = acpi_evalf(vid_handle, NULL, | |
1793 | "ASWT", "vdd", status * 0x100, 0); | |
1794 | if (!autosw && video_autosw_set(autosw)) { | |
1795 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1796 | return -EIO; | |
1797 | } | |
1798 | break; | |
1799 | case TPACPI_VIDEO_NEW: | |
1800 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
1801 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
1802 | break; | |
1803 | default: | |
1804 | return -ENOSYS; | |
1805 | } | |
1da177e4 | 1806 | |
83f34724 | 1807 | return (res)? 0 : -EIO; |
1da177e4 LT |
1808 | } |
1809 | ||
83f34724 | 1810 | static int video_autosw_get(void) |
78f81cc4 | 1811 | { |
83f34724 | 1812 | int autosw = 0; |
78f81cc4 | 1813 | |
83f34724 HMH |
1814 | switch (video_supported) { |
1815 | case TPACPI_VIDEO_570: | |
1816 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
1817 | return -EIO; | |
1818 | break; | |
1819 | case TPACPI_VIDEO_770: | |
1820 | case TPACPI_VIDEO_NEW: | |
1821 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
1822 | return -EIO; | |
1823 | break; | |
1824 | default: | |
1825 | return -ENOSYS; | |
1826 | } | |
78f81cc4 | 1827 | |
83f34724 | 1828 | return autosw & 1; |
78f81cc4 BD |
1829 | } |
1830 | ||
83f34724 | 1831 | static int video_autosw_set(int enable) |
78f81cc4 | 1832 | { |
83f34724 HMH |
1833 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
1834 | return -EIO; | |
1835 | return 0; | |
78f81cc4 BD |
1836 | } |
1837 | ||
83f34724 | 1838 | static int video_outputsw_cycle(void) |
78f81cc4 | 1839 | { |
83f34724 HMH |
1840 | int autosw = video_autosw_get(); |
1841 | int res; | |
78f81cc4 | 1842 | |
83f34724 HMH |
1843 | if (autosw < 0) |
1844 | return autosw; | |
78f81cc4 | 1845 | |
83f34724 HMH |
1846 | switch (video_supported) { |
1847 | case TPACPI_VIDEO_570: | |
1848 | res = video_autosw_set(1); | |
1849 | if (res) | |
1850 | return res; | |
1851 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
1852 | break; | |
1853 | case TPACPI_VIDEO_770: | |
1854 | case TPACPI_VIDEO_NEW: | |
1855 | res = video_autosw_set(1); | |
1856 | if (res) | |
1857 | return res; | |
1858 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
1859 | break; | |
1860 | default: | |
1861 | return -ENOSYS; | |
1862 | } | |
1863 | if (!autosw && video_autosw_set(autosw)) { | |
1864 | printk(IBM_ERR "video auto-switch left enabled due to error\n"); | |
1865 | return -EIO; | |
78f81cc4 BD |
1866 | } |
1867 | ||
83f34724 HMH |
1868 | return (res)? 0 : -EIO; |
1869 | } | |
1870 | ||
1871 | static int video_expand_toggle(void) | |
1872 | { | |
1873 | switch (video_supported) { | |
1874 | case TPACPI_VIDEO_570: | |
1875 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? | |
1876 | 0 : -EIO; | |
1877 | case TPACPI_VIDEO_770: | |
1878 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? | |
1879 | 0 : -EIO; | |
1880 | case TPACPI_VIDEO_NEW: | |
1881 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? | |
1882 | 0 : -EIO; | |
1883 | default: | |
1884 | return -ENOSYS; | |
1885 | } | |
1886 | /* not reached */ | |
78f81cc4 BD |
1887 | } |
1888 | ||
56b6aeb0 HMH |
1889 | static int video_read(char *p) |
1890 | { | |
83f34724 | 1891 | int status, autosw; |
56b6aeb0 HMH |
1892 | int len = 0; |
1893 | ||
83f34724 | 1894 | if (video_supported == TPACPI_VIDEO_NONE) { |
56b6aeb0 HMH |
1895 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
1896 | return len; | |
1897 | } | |
1898 | ||
83f34724 HMH |
1899 | status = video_outputsw_get(); |
1900 | if (status < 0) | |
1901 | return status; | |
1902 | ||
1903 | autosw = video_autosw_get(); | |
1904 | if (autosw < 0) | |
1905 | return autosw; | |
1906 | ||
56b6aeb0 HMH |
1907 | len += sprintf(p + len, "status:\t\tsupported\n"); |
1908 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); | |
1909 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 1910 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1911 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
1912 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
1913 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
1914 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 1915 | if (video_supported == TPACPI_VIDEO_NEW) |
56b6aeb0 HMH |
1916 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
1917 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
1918 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); | |
1919 | ||
1920 | return len; | |
1921 | } | |
1922 | ||
78f81cc4 | 1923 | static int video_write(char *buf) |
1da177e4 LT |
1924 | { |
1925 | char *cmd; | |
1926 | int enable, disable, status; | |
83f34724 | 1927 | int res; |
1da177e4 | 1928 | |
83f34724 | 1929 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
1930 | return -ENODEV; |
1931 | ||
83f34724 HMH |
1932 | enable = 0; |
1933 | disable = 0; | |
1da177e4 LT |
1934 | |
1935 | while ((cmd = next_cmd(&buf))) { | |
1936 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 1937 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 1938 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 1939 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 1940 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 1941 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 1942 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 1943 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 1944 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1945 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 1946 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 1947 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 1948 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 1949 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 1950 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
1951 | res = video_autosw_set(1); |
1952 | if (res) | |
1953 | return res; | |
1da177e4 | 1954 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
1955 | res = video_autosw_set(0); |
1956 | if (res) | |
1957 | return res; | |
1da177e4 | 1958 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
1959 | res = video_outputsw_cycle(); |
1960 | if (res) | |
1961 | return res; | |
1da177e4 | 1962 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
1963 | res = video_expand_toggle(); |
1964 | if (res) | |
1965 | return res; | |
1da177e4 LT |
1966 | } else |
1967 | return -EINVAL; | |
1968 | } | |
1969 | ||
1970 | if (enable || disable) { | |
83f34724 HMH |
1971 | status = video_outputsw_get(); |
1972 | if (status < 0) | |
1973 | return status; | |
1974 | res = video_outputsw_set((status & ~disable) | enable); | |
1975 | if (res) | |
1976 | return res; | |
1da177e4 LT |
1977 | } |
1978 | ||
1979 | return 0; | |
1980 | } | |
1981 | ||
a5763f22 HMH |
1982 | static struct ibm_struct video_driver_data = { |
1983 | .name = "video", | |
1984 | .read = video_read, | |
1985 | .write = video_write, | |
1986 | .exit = video_exit, | |
1987 | }; | |
1988 | ||
56b6aeb0 HMH |
1989 | /************************************************************************* |
1990 | * Light (thinklight) subdriver | |
1991 | */ | |
1da177e4 | 1992 | |
56b6aeb0 HMH |
1993 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
1994 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
1995 | ||
a5763f22 | 1996 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 1997 | { |
fe08bc4b HMH |
1998 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
1999 | ||
8d376cd6 HMH |
2000 | IBM_ACPIHANDLE_INIT(ledb); |
2001 | IBM_ACPIHANDLE_INIT(lght); | |
2002 | IBM_ACPIHANDLE_INIT(cmos); | |
5fba344c | 2003 | |
78f81cc4 | 2004 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 2005 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 2006 | |
d8fd94d9 | 2007 | if (tp_features.light) |
78f81cc4 BD |
2008 | /* light status not supported on |
2009 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
2010 | tp_features.light_status = |
2011 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 2012 | |
fe08bc4b | 2013 | vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", |
d8fd94d9 | 2014 | str_supported(tp_features.light)); |
fe08bc4b | 2015 | |
d8fd94d9 | 2016 | return (tp_features.light)? 0 : 1; |
1da177e4 LT |
2017 | } |
2018 | ||
78f81cc4 | 2019 | static int light_read(char *p) |
1da177e4 LT |
2020 | { |
2021 | int len = 0; | |
2022 | int status = 0; | |
2023 | ||
d8fd94d9 | 2024 | if (!tp_features.light) { |
78f81cc4 | 2025 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
d8fd94d9 | 2026 | } else if (!tp_features.light_status) { |
78f81cc4 BD |
2027 | len += sprintf(p + len, "status:\t\tunknown\n"); |
2028 | len += sprintf(p + len, "commands:\ton, off\n"); | |
2029 | } else { | |
1da177e4 LT |
2030 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
2031 | return -EIO; | |
2032 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
2033 | len += sprintf(p + len, "commands:\ton, off\n"); |
2034 | } | |
1da177e4 LT |
2035 | |
2036 | return len; | |
2037 | } | |
2038 | ||
78f81cc4 | 2039 | static int light_write(char *buf) |
1da177e4 LT |
2040 | { |
2041 | int cmos_cmd, lght_cmd; | |
2042 | char *cmd; | |
2043 | int success; | |
78f81cc4 | 2044 | |
d8fd94d9 | 2045 | if (!tp_features.light) |
78f81cc4 BD |
2046 | return -ENODEV; |
2047 | ||
1da177e4 LT |
2048 | while ((cmd = next_cmd(&buf))) { |
2049 | if (strlencmp(cmd, "on") == 0) { | |
2050 | cmos_cmd = 0x0c; | |
2051 | lght_cmd = 1; | |
2052 | } else if (strlencmp(cmd, "off") == 0) { | |
2053 | cmos_cmd = 0x0d; | |
2054 | lght_cmd = 0; | |
2055 | } else | |
2056 | return -EINVAL; | |
78f81cc4 | 2057 | |
1da177e4 | 2058 | success = cmos_handle ? |
78f81cc4 BD |
2059 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
2060 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
2061 | if (!success) |
2062 | return -EIO; | |
2063 | } | |
2064 | ||
2065 | return 0; | |
2066 | } | |
2067 | ||
a5763f22 HMH |
2068 | static struct ibm_struct light_driver_data = { |
2069 | .name = "light", | |
2070 | .read = light_read, | |
2071 | .write = light_write, | |
2072 | }; | |
2073 | ||
56b6aeb0 HMH |
2074 | /************************************************************************* |
2075 | * Dock subdriver | |
2076 | */ | |
1da177e4 | 2077 | |
85998248 | 2078 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
56b6aeb0 HMH |
2079 | |
2080 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ | |
2081 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
2082 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
2083 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
2084 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
2085 | ||
5fba344c HMH |
2086 | /* don't list other alternatives as we install a notify handler on the 570 */ |
2087 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
2088 | ||
1ba90e3a TR |
2089 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
2090 | {PCI_ROOT_HID_STRING, 0}, | |
2091 | {"", 0}, | |
2092 | }; | |
2093 | ||
d94a7f16 HMH |
2094 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
2095 | { | |
2096 | .notify = dock_notify, | |
2097 | .handle = &dock_handle, | |
2098 | .type = ACPI_SYSTEM_NOTIFY, | |
2099 | }, | |
2100 | { | |
996fba08 HMH |
2101 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
2102 | * We just use it to get notifications of dock hotplug | |
2103 | * in very old thinkpads */ | |
1ba90e3a | 2104 | .hid = ibm_pci_device_ids, |
d94a7f16 HMH |
2105 | .notify = dock_notify, |
2106 | .handle = &pci_handle, | |
2107 | .type = ACPI_SYSTEM_NOTIFY, | |
2108 | }, | |
2109 | }; | |
2110 | ||
2111 | static struct ibm_struct dock_driver_data[2] = { | |
2112 | { | |
2113 | .name = "dock", | |
2114 | .read = dock_read, | |
2115 | .write = dock_write, | |
2116 | .acpi = &ibm_dock_acpidriver[0], | |
2117 | }, | |
2118 | { | |
2119 | .name = "dock", | |
2120 | .acpi = &ibm_dock_acpidriver[1], | |
2121 | }, | |
2122 | }; | |
2123 | ||
1da177e4 LT |
2124 | #define dock_docked() (_sta(dock_handle) & 1) |
2125 | ||
a5763f22 | 2126 | static int __init dock_init(struct ibm_init_struct *iibm) |
5fba344c | 2127 | { |
fe08bc4b HMH |
2128 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
2129 | ||
8d376cd6 | 2130 | IBM_ACPIHANDLE_INIT(dock); |
5fba344c | 2131 | |
fe08bc4b HMH |
2132 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
2133 | str_supported(dock_handle != NULL)); | |
2134 | ||
5fba344c HMH |
2135 | return (dock_handle)? 0 : 1; |
2136 | } | |
2137 | ||
d94a7f16 HMH |
2138 | static int __init dock_init2(struct ibm_init_struct *iibm) |
2139 | { | |
2140 | int dock2_needed; | |
2141 | ||
2142 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); | |
2143 | ||
2144 | if (dock_driver_data[0].flags.acpi_driver_registered && | |
2145 | dock_driver_data[0].flags.acpi_notify_installed) { | |
2146 | IBM_ACPIHANDLE_INIT(pci); | |
2147 | dock2_needed = (pci_handle != NULL); | |
2148 | vdbg_printk(TPACPI_DBG_INIT, | |
2149 | "dock PCI handler for the TP 570 is %s\n", | |
2150 | str_supported(dock2_needed)); | |
2151 | } else { | |
2152 | vdbg_printk(TPACPI_DBG_INIT, | |
2153 | "dock subdriver part 2 not required\n"); | |
2154 | dock2_needed = 0; | |
2155 | } | |
2156 | ||
2157 | return (dock2_needed)? 0 : 1; | |
2158 | } | |
2159 | ||
56b6aeb0 HMH |
2160 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
2161 | { | |
2162 | int docked = dock_docked(); | |
1ba90e3a TR |
2163 | int pci = ibm->acpi->hid && ibm->acpi->device && |
2164 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); | |
56b6aeb0 HMH |
2165 | |
2166 | if (event == 1 && !pci) /* 570 */ | |
8d376cd6 | 2167 | acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */ |
56b6aeb0 | 2168 | else if (event == 1 && pci) /* 570 */ |
8d376cd6 | 2169 | acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */ |
56b6aeb0 | 2170 | else if (event == 3 && docked) |
8d376cd6 | 2171 | acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */ |
56b6aeb0 | 2172 | else if (event == 3 && !docked) |
8d376cd6 | 2173 | acpi_bus_generate_event(ibm->acpi->device, event, 2); /* undock */ |
56b6aeb0 | 2174 | else if (event == 0 && docked) |
8d376cd6 | 2175 | acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */ |
56b6aeb0 HMH |
2176 | else { |
2177 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
2178 | event, _sta(dock_handle)); | |
8d376cd6 | 2179 | acpi_bus_generate_event(ibm->acpi->device, event, 0); /* unknown */ |
56b6aeb0 HMH |
2180 | } |
2181 | } | |
2182 | ||
78f81cc4 | 2183 | static int dock_read(char *p) |
1da177e4 LT |
2184 | { |
2185 | int len = 0; | |
2186 | int docked = dock_docked(); | |
2187 | ||
2188 | if (!dock_handle) | |
2189 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2190 | else if (!docked) | |
2191 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
2192 | else { | |
2193 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
2194 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
2195 | } | |
2196 | ||
2197 | return len; | |
2198 | } | |
2199 | ||
78f81cc4 | 2200 | static int dock_write(char *buf) |
1da177e4 LT |
2201 | { |
2202 | char *cmd; | |
2203 | ||
2204 | if (!dock_docked()) | |
78f81cc4 | 2205 | return -ENODEV; |
1da177e4 LT |
2206 | |
2207 | while ((cmd = next_cmd(&buf))) { | |
2208 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
2209 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
2210 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
56b6aeb0 HMH |
2211 | return -EIO; |
2212 | } else if (strlencmp(cmd, "dock") == 0) { | |
2213 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
2214 | return -EIO; | |
2215 | } else | |
2216 | return -EINVAL; | |
1da177e4 | 2217 | } |
56b6aeb0 HMH |
2218 | |
2219 | return 0; | |
1da177e4 | 2220 | } |
56b6aeb0 | 2221 | |
85998248 | 2222 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
56b6aeb0 HMH |
2223 | |
2224 | /************************************************************************* | |
2225 | * Bay subdriver | |
2226 | */ | |
1da177e4 | 2227 | |
85998248 | 2228 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
56b6aeb0 HMH |
2229 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
2230 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
2231 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ | |
2232 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ | |
2233 | ); /* A21e, R30, R31 */ | |
2234 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
2235 | "_EJ0", /* all others */ | |
2236 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
2237 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
2238 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
2239 | ); /* all others */ | |
2240 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
2241 | "_EJ0", /* 770x */ | |
2242 | ); /* all others */ | |
2243 | ||
a5763f22 | 2244 | static int __init bay_init(struct ibm_init_struct *iibm) |
1da177e4 | 2245 | { |
fe08bc4b HMH |
2246 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
2247 | ||
8d376cd6 | 2248 | IBM_ACPIHANDLE_INIT(bay); |
5fba344c | 2249 | if (bay_handle) |
8d376cd6 HMH |
2250 | IBM_ACPIHANDLE_INIT(bay_ej); |
2251 | IBM_ACPIHANDLE_INIT(bay2); | |
5fba344c | 2252 | if (bay2_handle) |
8d376cd6 | 2253 | IBM_ACPIHANDLE_INIT(bay2_ej); |
5fba344c | 2254 | |
d8fd94d9 HMH |
2255 | tp_features.bay_status = bay_handle && |
2256 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
2257 | tp_features.bay_status2 = bay2_handle && | |
2258 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
78f81cc4 | 2259 | |
d8fd94d9 HMH |
2260 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
2261 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
2262 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && | |
2263 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 | 2264 | |
fe08bc4b HMH |
2265 | vdbg_printk(TPACPI_DBG_INIT, |
2266 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", | |
d8fd94d9 HMH |
2267 | str_supported(tp_features.bay_status), |
2268 | str_supported(tp_features.bay_eject), | |
2269 | str_supported(tp_features.bay_status2), | |
2270 | str_supported(tp_features.bay_eject2)); | |
fe08bc4b | 2271 | |
d8fd94d9 HMH |
2272 | return (tp_features.bay_status || tp_features.bay_eject || |
2273 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; | |
1da177e4 LT |
2274 | } |
2275 | ||
56b6aeb0 HMH |
2276 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
2277 | { | |
8d376cd6 | 2278 | acpi_bus_generate_event(ibm->acpi->device, event, 0); |
56b6aeb0 HMH |
2279 | } |
2280 | ||
78f81cc4 BD |
2281 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
2282 | ||
2283 | static int bay_read(char *p) | |
1da177e4 LT |
2284 | { |
2285 | int len = 0; | |
78f81cc4 BD |
2286 | int occupied = bay_occupied(bay); |
2287 | int occupied2 = bay_occupied(bay2); | |
2288 | int eject, eject2; | |
2289 | ||
d8fd94d9 HMH |
2290 | len += sprintf(p + len, "status:\t\t%s\n", |
2291 | tp_features.bay_status ? | |
2292 | (occupied ? "occupied" : "unoccupied") : | |
2293 | "not supported"); | |
2294 | if (tp_features.bay_status2) | |
78f81cc4 BD |
2295 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
2296 | "occupied" : "unoccupied"); | |
2297 | ||
d8fd94d9 HMH |
2298 | eject = tp_features.bay_eject && occupied; |
2299 | eject2 = tp_features.bay_eject2 && occupied2; | |
78f81cc4 BD |
2300 | |
2301 | if (eject && eject2) | |
2302 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
2303 | else if (eject) | |
1da177e4 | 2304 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
2305 | else if (eject2) |
2306 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
2307 | |
2308 | return len; | |
2309 | } | |
2310 | ||
78f81cc4 | 2311 | static int bay_write(char *buf) |
1da177e4 LT |
2312 | { |
2313 | char *cmd; | |
2314 | ||
d8fd94d9 | 2315 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
78f81cc4 BD |
2316 | return -ENODEV; |
2317 | ||
1da177e4 | 2318 | while ((cmd = next_cmd(&buf))) { |
d8fd94d9 | 2319 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
78f81cc4 BD |
2320 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
2321 | return -EIO; | |
d8fd94d9 | 2322 | } else if (tp_features.bay_eject2 && |
78f81cc4 BD |
2323 | strlencmp(cmd, "eject2") == 0) { |
2324 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
2325 | return -EIO; |
2326 | } else | |
2327 | return -EINVAL; | |
2328 | } | |
2329 | ||
2330 | return 0; | |
78f81cc4 | 2331 | } |
a5763f22 | 2332 | |
8d376cd6 HMH |
2333 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
2334 | .notify = bay_notify, | |
2335 | .handle = &bay_handle, | |
2336 | .type = ACPI_SYSTEM_NOTIFY, | |
2337 | }; | |
2338 | ||
a5763f22 HMH |
2339 | static struct ibm_struct bay_driver_data = { |
2340 | .name = "bay", | |
2341 | .read = bay_read, | |
2342 | .write = bay_write, | |
8d376cd6 | 2343 | .acpi = &ibm_bay_acpidriver, |
a5763f22 HMH |
2344 | }; |
2345 | ||
85998248 | 2346 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
1da177e4 | 2347 | |
56b6aeb0 HMH |
2348 | /************************************************************************* |
2349 | * CMOS subdriver | |
2350 | */ | |
2351 | ||
b616004c HMH |
2352 | /* sysfs cmos_command -------------------------------------------------- */ |
2353 | static ssize_t cmos_command_store(struct device *dev, | |
2354 | struct device_attribute *attr, | |
2355 | const char *buf, size_t count) | |
2356 | { | |
2357 | unsigned long cmos_cmd; | |
2358 | int res; | |
2359 | ||
2360 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
2361 | return -EINVAL; | |
2362 | ||
2363 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
2364 | return (res)? res : count; | |
2365 | } | |
2366 | ||
2367 | static struct device_attribute dev_attr_cmos_command = | |
2368 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); | |
2369 | ||
2370 | /* --------------------------------------------------------------------- */ | |
2371 | ||
a5763f22 | 2372 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 2373 | { |
b616004c HMH |
2374 | int res; |
2375 | ||
fe08bc4b HMH |
2376 | vdbg_printk(TPACPI_DBG_INIT, |
2377 | "initializing cmos commands subdriver\n"); | |
2378 | ||
8d376cd6 | 2379 | IBM_ACPIHANDLE_INIT(cmos); |
5fba344c | 2380 | |
fe08bc4b HMH |
2381 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
2382 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
2383 | |
2384 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
2385 | if (res) | |
2386 | return res; | |
2387 | ||
5fba344c HMH |
2388 | return (cmos_handle)? 0 : 1; |
2389 | } | |
2390 | ||
b616004c HMH |
2391 | static void cmos_exit(void) |
2392 | { | |
2393 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
2394 | } | |
2395 | ||
78f81cc4 | 2396 | static int cmos_read(char *p) |
1da177e4 LT |
2397 | { |
2398 | int len = 0; | |
2399 | ||
78f81cc4 BD |
2400 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
2401 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
2402 | if (!cmos_handle) |
2403 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2404 | else { | |
2405 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 2406 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
2407 | } |
2408 | ||
2409 | return len; | |
2410 | } | |
2411 | ||
78f81cc4 | 2412 | static int cmos_write(char *buf) |
1da177e4 LT |
2413 | { |
2414 | char *cmd; | |
c9bea99c | 2415 | int cmos_cmd, res; |
1da177e4 LT |
2416 | |
2417 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
2418 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
2419 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
2420 | /* cmos_cmd set */ |
2421 | } else | |
2422 | return -EINVAL; | |
2423 | ||
c9bea99c HMH |
2424 | res = issue_thinkpad_cmos_command(cmos_cmd); |
2425 | if (res) | |
2426 | return res; | |
1da177e4 LT |
2427 | } |
2428 | ||
2429 | return 0; | |
78f81cc4 BD |
2430 | } |
2431 | ||
a5763f22 HMH |
2432 | static struct ibm_struct cmos_driver_data = { |
2433 | .name = "cmos", | |
2434 | .read = cmos_read, | |
2435 | .write = cmos_write, | |
b616004c | 2436 | .exit = cmos_exit, |
a5763f22 | 2437 | }; |
56b6aeb0 HMH |
2438 | |
2439 | /************************************************************************* | |
2440 | * LED subdriver | |
2441 | */ | |
2442 | ||
9a8e1738 | 2443 | static enum led_access_mode led_supported; |
78f81cc4 | 2444 | |
56b6aeb0 HMH |
2445 | IBM_HANDLE(led, ec, "SLED", /* 570 */ |
2446 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
2447 | "LED", /* all others */ | |
2448 | ); /* R30, R31 */ | |
2449 | ||
a5763f22 | 2450 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2451 | { |
fe08bc4b HMH |
2452 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
2453 | ||
8d376cd6 | 2454 | IBM_ACPIHANDLE_INIT(led); |
5fba344c | 2455 | |
78f81cc4 BD |
2456 | if (!led_handle) |
2457 | /* led not supported on R30, R31 */ | |
efa27145 | 2458 | led_supported = TPACPI_LED_NONE; |
78f81cc4 BD |
2459 | else if (strlencmp(led_path, "SLED") == 0) |
2460 | /* 570 */ | |
efa27145 | 2461 | led_supported = TPACPI_LED_570; |
78f81cc4 BD |
2462 | else if (strlencmp(led_path, "SYSL") == 0) |
2463 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
efa27145 | 2464 | led_supported = TPACPI_LED_OLD; |
78f81cc4 BD |
2465 | else |
2466 | /* all others */ | |
efa27145 | 2467 | led_supported = TPACPI_LED_NEW; |
78f81cc4 | 2468 | |
fe08bc4b HMH |
2469 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
2470 | str_supported(led_supported), led_supported); | |
2471 | ||
5fba344c | 2472 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
78f81cc4 BD |
2473 | } |
2474 | ||
2475 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
2476 | ||
2477 | static int led_read(char *p) | |
1da177e4 LT |
2478 | { |
2479 | int len = 0; | |
2480 | ||
78f81cc4 BD |
2481 | if (!led_supported) { |
2482 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2483 | return len; | |
2484 | } | |
2485 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2486 | ||
efa27145 | 2487 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2488 | /* 570 */ |
2489 | int i, status; | |
2490 | for (i = 0; i < 8; i++) { | |
2491 | if (!acpi_evalf(ec_handle, | |
2492 | &status, "GLED", "dd", 1 << i)) | |
2493 | return -EIO; | |
2494 | len += sprintf(p + len, "%d:\t\t%s\n", | |
2495 | i, led_status(status)); | |
2496 | } | |
2497 | } | |
2498 | ||
1da177e4 | 2499 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 2500 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
2501 | |
2502 | return len; | |
2503 | } | |
2504 | ||
78f81cc4 BD |
2505 | /* off, on, blink */ |
2506 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
2507 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
2508 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
2509 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
2510 | ||
78f81cc4 | 2511 | static int led_write(char *buf) |
1da177e4 LT |
2512 | { |
2513 | char *cmd; | |
78f81cc4 BD |
2514 | int led, ind, ret; |
2515 | ||
2516 | if (!led_supported) | |
2517 | return -ENODEV; | |
1da177e4 LT |
2518 | |
2519 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 2520 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
2521 | return -EINVAL; |
2522 | ||
78f81cc4 BD |
2523 | if (strstr(cmd, "off")) { |
2524 | ind = 0; | |
1da177e4 | 2525 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
2526 | ind = 1; |
2527 | } else if (strstr(cmd, "blink")) { | |
2528 | ind = 2; | |
1da177e4 LT |
2529 | } else |
2530 | return -EINVAL; | |
78f81cc4 | 2531 | |
efa27145 | 2532 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
2533 | /* 570 */ |
2534 | led = 1 << led; | |
1da177e4 | 2535 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 2536 | led, led_sled_arg1[ind])) |
1da177e4 | 2537 | return -EIO; |
efa27145 | 2538 | } else if (led_supported == TPACPI_LED_OLD) { |
78f81cc4 BD |
2539 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
2540 | led = 1 << led; | |
efa27145 | 2541 | ret = ec_write(TPACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
2542 | if (ret >= 0) |
2543 | ret = | |
efa27145 | 2544 | ec_write(TPACPI_LED_EC_HLBL, |
e062e034 | 2545 | led * led_exp_hlbl[ind]); |
78f81cc4 BD |
2546 | if (ret >= 0) |
2547 | ret = | |
efa27145 | 2548 | ec_write(TPACPI_LED_EC_HLCL, |
e062e034 | 2549 | led * led_exp_hlcl[ind]); |
78f81cc4 BD |
2550 | if (ret < 0) |
2551 | return ret; | |
2552 | } else { | |
2553 | /* all others */ | |
2554 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
2555 | led, led_led_arg1[ind])) | |
1da177e4 | 2556 | return -EIO; |
78f81cc4 BD |
2557 | } |
2558 | } | |
2559 | ||
2560 | return 0; | |
2561 | } | |
2562 | ||
a5763f22 HMH |
2563 | static struct ibm_struct led_driver_data = { |
2564 | .name = "led", | |
2565 | .read = led_read, | |
2566 | .write = led_write, | |
2567 | }; | |
2568 | ||
56b6aeb0 HMH |
2569 | /************************************************************************* |
2570 | * Beep subdriver | |
2571 | */ | |
2572 | ||
2573 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
2574 | ||
a5763f22 | 2575 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 2576 | { |
fe08bc4b HMH |
2577 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
2578 | ||
8d376cd6 | 2579 | IBM_ACPIHANDLE_INIT(beep); |
5fba344c | 2580 | |
fe08bc4b HMH |
2581 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
2582 | str_supported(beep_handle != NULL)); | |
2583 | ||
5fba344c HMH |
2584 | return (beep_handle)? 0 : 1; |
2585 | } | |
2586 | ||
78f81cc4 BD |
2587 | static int beep_read(char *p) |
2588 | { | |
2589 | int len = 0; | |
2590 | ||
2591 | if (!beep_handle) | |
2592 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
2593 | else { | |
2594 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
2595 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
2596 | } | |
2597 | ||
2598 | return len; | |
2599 | } | |
2600 | ||
2601 | static int beep_write(char *buf) | |
2602 | { | |
2603 | char *cmd; | |
2604 | int beep_cmd; | |
2605 | ||
2606 | if (!beep_handle) | |
2607 | return -ENODEV; | |
2608 | ||
2609 | while ((cmd = next_cmd(&buf))) { | |
2610 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
2611 | beep_cmd >= 0 && beep_cmd <= 17) { | |
2612 | /* beep_cmd set */ | |
2613 | } else | |
2614 | return -EINVAL; | |
2615 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
2616 | return -EIO; | |
2617 | } | |
2618 | ||
2619 | return 0; | |
2620 | } | |
2621 | ||
a5763f22 HMH |
2622 | static struct ibm_struct beep_driver_data = { |
2623 | .name = "beep", | |
2624 | .read = beep_read, | |
2625 | .write = beep_write, | |
2626 | }; | |
2627 | ||
56b6aeb0 HMH |
2628 | /************************************************************************* |
2629 | * Thermal subdriver | |
2630 | */ | |
78f81cc4 | 2631 | |
a26f878a | 2632 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 2633 | |
2c37aa4e HMH |
2634 | /* sysfs temp##_input -------------------------------------------------- */ |
2635 | ||
2636 | static ssize_t thermal_temp_input_show(struct device *dev, | |
2637 | struct device_attribute *attr, | |
2638 | char *buf) | |
2639 | { | |
2640 | struct sensor_device_attribute *sensor_attr = | |
2641 | to_sensor_dev_attr(attr); | |
2642 | int idx = sensor_attr->index; | |
2643 | s32 value; | |
2644 | int res; | |
2645 | ||
2646 | res = thermal_get_sensor(idx, &value); | |
2647 | if (res) | |
2648 | return res; | |
2649 | if (value == TP_EC_THERMAL_TMP_NA * 1000) | |
2650 | return -ENXIO; | |
2651 | ||
2652 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
2653 | } | |
2654 | ||
2655 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
2656 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB) | |
2657 | ||
2658 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
2659 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
2660 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
2661 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
2662 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
2663 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
2664 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
2665 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
2666 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
2667 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
2668 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
2669 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
2670 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
2671 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
2672 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
2673 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
2674 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
2675 | }; | |
2676 | ||
2677 | #define THERMAL_ATTRS(X) \ | |
2678 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
2679 | ||
2680 | static struct attribute *thermal_temp_input_attr[] = { | |
2681 | THERMAL_ATTRS(8), | |
2682 | THERMAL_ATTRS(9), | |
2683 | THERMAL_ATTRS(10), | |
2684 | THERMAL_ATTRS(11), | |
2685 | THERMAL_ATTRS(12), | |
2686 | THERMAL_ATTRS(13), | |
2687 | THERMAL_ATTRS(14), | |
2688 | THERMAL_ATTRS(15), | |
2689 | THERMAL_ATTRS(0), | |
2690 | THERMAL_ATTRS(1), | |
2691 | THERMAL_ATTRS(2), | |
2692 | THERMAL_ATTRS(3), | |
2693 | THERMAL_ATTRS(4), | |
2694 | THERMAL_ATTRS(5), | |
2695 | THERMAL_ATTRS(6), | |
2696 | THERMAL_ATTRS(7), | |
2697 | NULL | |
2698 | }; | |
2699 | ||
2700 | static const struct attribute_group thermal_temp_input16_group = { | |
2701 | .attrs = thermal_temp_input_attr | |
2702 | }; | |
2703 | ||
2704 | static const struct attribute_group thermal_temp_input8_group = { | |
2705 | .attrs = &thermal_temp_input_attr[8] | |
2706 | }; | |
2707 | ||
2708 | #undef THERMAL_SENSOR_ATTR_TEMP | |
2709 | #undef THERMAL_ATTRS | |
2710 | ||
2711 | /* --------------------------------------------------------------------- */ | |
2712 | ||
a5763f22 | 2713 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 2714 | { |
60eb0b35 HMH |
2715 | u8 t, ta1, ta2; |
2716 | int i; | |
5fba344c | 2717 | int acpi_tmp7; |
2c37aa4e | 2718 | int res; |
5fba344c | 2719 | |
fe08bc4b HMH |
2720 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
2721 | ||
5fba344c | 2722 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 2723 | |
3d6f99ca | 2724 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
2725 | /* |
2726 | * Direct EC access mode: sensors at registers | |
2727 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
2728 | * non-implemented, thermal sensors return 0x80 when | |
2729 | * not available | |
2730 | */ | |
78f81cc4 | 2731 | |
60eb0b35 HMH |
2732 | ta1 = ta2 = 0; |
2733 | for (i = 0; i < 8; i++) { | |
04cc862c | 2734 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
2735 | ta1 |= t; |
2736 | } else { | |
2737 | ta1 = 0; | |
2738 | break; | |
2739 | } | |
04cc862c | 2740 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
2741 | ta2 |= t; |
2742 | } else { | |
2743 | ta1 = 0; | |
2744 | break; | |
2745 | } | |
2746 | } | |
2747 | if (ta1 == 0) { | |
2748 | /* This is sheer paranoia, but we handle it anyway */ | |
2749 | if (acpi_tmp7) { | |
2750 | printk(IBM_ERR | |
2751 | "ThinkPad ACPI EC access misbehaving, " | |
2752 | "falling back to ACPI TMPx access mode\n"); | |
efa27145 | 2753 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 HMH |
2754 | } else { |
2755 | printk(IBM_ERR | |
2756 | "ThinkPad ACPI EC access misbehaving, " | |
2757 | "disabling thermal sensors access\n"); | |
efa27145 | 2758 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
2759 | } |
2760 | } else { | |
2761 | thermal_read_mode = | |
2762 | (ta2 != 0) ? | |
efa27145 | 2763 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
2764 | } |
2765 | } else if (acpi_tmp7) { | |
a26f878a HMH |
2766 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
2767 | /* 600e/x, 770e, 770x */ | |
efa27145 | 2768 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a HMH |
2769 | } else { |
2770 | /* Standard ACPI TMPx access, max 8 sensors */ | |
efa27145 | 2771 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
2772 | } |
2773 | } else { | |
2774 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 2775 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 2776 | } |
78f81cc4 | 2777 | |
fe08bc4b HMH |
2778 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
2779 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
2780 | thermal_read_mode); | |
2781 | ||
2c37aa4e HMH |
2782 | switch(thermal_read_mode) { |
2783 | case TPACPI_THERMAL_TPEC_16: | |
2784 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2785 | &thermal_temp_input16_group); | |
2786 | if (res) | |
2787 | return res; | |
2788 | break; | |
2789 | case TPACPI_THERMAL_TPEC_8: | |
2790 | case TPACPI_THERMAL_ACPI_TMP07: | |
2791 | case TPACPI_THERMAL_ACPI_UPDT: | |
2792 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
2793 | &thermal_temp_input8_group); | |
2794 | if (res) | |
2795 | return res; | |
2796 | break; | |
2797 | case TPACPI_THERMAL_NONE: | |
2798 | default: | |
2799 | return 1; | |
2800 | } | |
2801 | ||
2802 | return 0; | |
2803 | } | |
2804 | ||
2805 | static void thermal_exit(void) | |
2806 | { | |
2807 | switch(thermal_read_mode) { | |
2808 | case TPACPI_THERMAL_TPEC_16: | |
2809 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2810 | &thermal_temp_input16_group); | |
2811 | break; | |
2812 | case TPACPI_THERMAL_TPEC_8: | |
2813 | case TPACPI_THERMAL_ACPI_TMP07: | |
2814 | case TPACPI_THERMAL_ACPI_UPDT: | |
2815 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
2816 | &thermal_temp_input16_group); | |
2817 | break; | |
2818 | case TPACPI_THERMAL_NONE: | |
2819 | default: | |
2820 | break; | |
2821 | } | |
78f81cc4 BD |
2822 | } |
2823 | ||
04cc862c HMH |
2824 | /* idx is zero-based */ |
2825 | static int thermal_get_sensor(int idx, s32 *value) | |
78f81cc4 | 2826 | { |
04cc862c | 2827 | int t; |
60eb0b35 | 2828 | s8 tmp; |
04cc862c | 2829 | char tmpi[5]; |
78f81cc4 | 2830 | |
04cc862c | 2831 | t = TP_EC_THERMAL_TMP0; |
78f81cc4 | 2832 | |
a26f878a | 2833 | switch (thermal_read_mode) { |
efa27145 HMH |
2834 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 |
2835 | case TPACPI_THERMAL_TPEC_16: | |
04cc862c HMH |
2836 | if (idx >= 8 && idx <= 15) { |
2837 | t = TP_EC_THERMAL_TMP8; | |
2838 | idx -= 8; | |
60eb0b35 HMH |
2839 | } |
2840 | /* fallthrough */ | |
2841 | #endif | |
efa27145 | 2842 | case TPACPI_THERMAL_TPEC_8: |
04cc862c HMH |
2843 | if (idx <= 7) { |
2844 | if (!acpi_ec_read(t + idx, &tmp)) | |
78f81cc4 | 2845 | return -EIO; |
04cc862c HMH |
2846 | *value = tmp * 1000; |
2847 | return 0; | |
60eb0b35 | 2848 | } |
04cc862c | 2849 | break; |
78f81cc4 | 2850 | |
efa27145 | 2851 | case TPACPI_THERMAL_ACPI_UPDT: |
04cc862c HMH |
2852 | if (idx <= 7) { |
2853 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
2854 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
2855 | return -EIO; | |
78f81cc4 BD |
2856 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
2857 | return -EIO; | |
04cc862c HMH |
2858 | *value = (t - 2732) * 100; |
2859 | return 0; | |
78f81cc4 | 2860 | } |
04cc862c | 2861 | break; |
78f81cc4 | 2862 | |
efa27145 | 2863 | case TPACPI_THERMAL_ACPI_TMP07: |
04cc862c HMH |
2864 | if (idx <= 7) { |
2865 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
78f81cc4 BD |
2866 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
2867 | return -EIO; | |
a8fba3da HMH |
2868 | if (t > 127 || t < -127) |
2869 | t = TP_EC_THERMAL_TMP_NA; | |
04cc862c HMH |
2870 | *value = t * 1000; |
2871 | return 0; | |
78f81cc4 | 2872 | } |
04cc862c | 2873 | break; |
78f81cc4 | 2874 | |
efa27145 | 2875 | case TPACPI_THERMAL_NONE: |
a26f878a | 2876 | default: |
04cc862c HMH |
2877 | return -ENOSYS; |
2878 | } | |
2879 | ||
2880 | return -EINVAL; | |
2881 | } | |
2882 | ||
2883 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
2884 | { | |
2885 | int res, i; | |
2886 | int n; | |
2887 | ||
2888 | n = 8; | |
2889 | i = 0; | |
2890 | ||
2891 | if (!s) | |
2892 | return -EINVAL; | |
2893 | ||
2894 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
2895 | n = 16; | |
2896 | ||
2897 | for(i = 0 ; i < n; i++) { | |
2898 | res = thermal_get_sensor(i, &s->temp[i]); | |
2899 | if (res) | |
2900 | return res; | |
78f81cc4 | 2901 | } |
04cc862c HMH |
2902 | |
2903 | return n; | |
a26f878a HMH |
2904 | } |
2905 | ||
2906 | static int thermal_read(char *p) | |
2907 | { | |
2908 | int len = 0; | |
2909 | int n, i; | |
2910 | struct ibm_thermal_sensors_struct t; | |
2911 | ||
2912 | n = thermal_get_sensors(&t); | |
2913 | if (unlikely(n < 0)) | |
2914 | return n; | |
2915 | ||
2916 | len += sprintf(p + len, "temperatures:\t"); | |
2917 | ||
2918 | if (n > 0) { | |
2919 | for (i = 0; i < (n - 1); i++) | |
2920 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
2921 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
2922 | } else | |
2923 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
2924 | |
2925 | return len; | |
2926 | } | |
2927 | ||
a5763f22 HMH |
2928 | static struct ibm_struct thermal_driver_data = { |
2929 | .name = "thermal", | |
2930 | .read = thermal_read, | |
2c37aa4e | 2931 | .exit = thermal_exit, |
a5763f22 HMH |
2932 | }; |
2933 | ||
56b6aeb0 HMH |
2934 | /************************************************************************* |
2935 | * EC Dump subdriver | |
2936 | */ | |
2937 | ||
78f81cc4 BD |
2938 | static u8 ecdump_regs[256]; |
2939 | ||
2940 | static int ecdump_read(char *p) | |
2941 | { | |
2942 | int len = 0; | |
2943 | int i, j; | |
2944 | u8 v; | |
2945 | ||
2946 | len += sprintf(p + len, "EC " | |
2947 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
2948 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
2949 | for (i = 0; i < 256; i += 16) { | |
2950 | len += sprintf(p + len, "EC 0x%02x:", i); | |
2951 | for (j = 0; j < 16; j++) { | |
2952 | if (!acpi_ec_read(i + j, &v)) | |
2953 | break; | |
2954 | if (v != ecdump_regs[i + j]) | |
2955 | len += sprintf(p + len, " *%02x", v); | |
2956 | else | |
2957 | len += sprintf(p + len, " %02x", v); | |
2958 | ecdump_regs[i + j] = v; | |
2959 | } | |
2960 | len += sprintf(p + len, "\n"); | |
2961 | if (j != 16) | |
2962 | break; | |
2963 | } | |
2964 | ||
2965 | /* These are way too dangerous to advertise openly... */ | |
2966 | #if 0 | |
2967 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
2968 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
2969 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
2970 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
2971 | #endif | |
2972 | return len; | |
2973 | } | |
2974 | ||
2975 | static int ecdump_write(char *buf) | |
2976 | { | |
2977 | char *cmd; | |
2978 | int i, v; | |
2979 | ||
2980 | while ((cmd = next_cmd(&buf))) { | |
2981 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
2982 | /* i and v set */ | |
2983 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
2984 | /* i and v set */ | |
2985 | } else | |
2986 | return -EINVAL; | |
2987 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
2988 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
2989 | return -EIO; |
2990 | } else | |
2991 | return -EINVAL; | |
2992 | } | |
2993 | ||
2994 | return 0; | |
78f81cc4 BD |
2995 | } |
2996 | ||
a5763f22 HMH |
2997 | static struct ibm_struct ecdump_driver_data = { |
2998 | .name = "ecdump", | |
2999 | .read = ecdump_read, | |
3000 | .write = ecdump_write, | |
92641177 | 3001 | .flags.experimental = 1, |
a5763f22 HMH |
3002 | }; |
3003 | ||
56b6aeb0 HMH |
3004 | /************************************************************************* |
3005 | * Backlight/brightness subdriver | |
3006 | */ | |
3007 | ||
94954cc6 | 3008 | static struct backlight_device *ibm_backlight_device; |
56b6aeb0 HMH |
3009 | |
3010 | static struct backlight_ops ibm_backlight_data = { | |
3011 | .get_brightness = brightness_get, | |
3012 | .update_status = brightness_update_status, | |
3013 | }; | |
3014 | ||
f432255e HMH |
3015 | static struct mutex brightness_mutex; |
3016 | ||
a5763f22 | 3017 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 HMH |
3018 | { |
3019 | int b; | |
3020 | ||
fe08bc4b HMH |
3021 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
3022 | ||
f432255e HMH |
3023 | mutex_init(&brightness_mutex); |
3024 | ||
24d3b774 HMH |
3025 | if (!brightness_mode) { |
3026 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) | |
3027 | brightness_mode = 2; | |
3028 | else | |
3029 | brightness_mode = 3; | |
3030 | ||
3031 | dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", | |
3032 | brightness_mode); | |
3033 | } | |
3034 | ||
3035 | if (brightness_mode > 3) | |
3036 | return -EINVAL; | |
3037 | ||
56b6aeb0 HMH |
3038 | b = brightness_get(NULL); |
3039 | if (b < 0) | |
24d3b774 | 3040 | return 1; |
56b6aeb0 | 3041 | |
7d5a015e HMH |
3042 | ibm_backlight_device = backlight_device_register( |
3043 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, | |
3044 | &ibm_backlight_data); | |
56b6aeb0 HMH |
3045 | if (IS_ERR(ibm_backlight_device)) { |
3046 | printk(IBM_ERR "Could not register backlight device\n"); | |
3047 | return PTR_ERR(ibm_backlight_device); | |
3048 | } | |
fe08bc4b | 3049 | vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); |
56b6aeb0 HMH |
3050 | |
3051 | ibm_backlight_device->props.max_brightness = 7; | |
3052 | ibm_backlight_device->props.brightness = b; | |
3053 | backlight_update_status(ibm_backlight_device); | |
3054 | ||
3055 | return 0; | |
3056 | } | |
3057 | ||
3058 | static void brightness_exit(void) | |
3059 | { | |
3060 | if (ibm_backlight_device) { | |
fe08bc4b HMH |
3061 | vdbg_printk(TPACPI_DBG_EXIT, |
3062 | "calling backlight_device_unregister()\n"); | |
56b6aeb0 HMH |
3063 | backlight_device_unregister(ibm_backlight_device); |
3064 | ibm_backlight_device = NULL; | |
3065 | } | |
3066 | } | |
3067 | ||
3068 | static int brightness_update_status(struct backlight_device *bd) | |
3069 | { | |
3070 | return brightness_set( | |
3071 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
3072 | bd->props.power == FB_BLANK_UNBLANK) ? | |
3073 | bd->props.brightness : 0); | |
3074 | } | |
3075 | ||
24d3b774 HMH |
3076 | /* |
3077 | * ThinkPads can read brightness from two places: EC 0x31, or | |
3078 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
3079 | */ | |
8acb0250 HM |
3080 | static int brightness_get(struct backlight_device *bd) |
3081 | { | |
24d3b774 | 3082 | u8 lec = 0, lcmos = 0, level = 0; |
8acb0250 | 3083 | |
24d3b774 HMH |
3084 | if (brightness_mode & 1) { |
3085 | if (!acpi_ec_read(brightness_offset, &lec)) | |
3086 | return -EIO; | |
3087 | lec &= 7; | |
3088 | level = lec; | |
3089 | }; | |
3090 | if (brightness_mode & 2) { | |
3091 | lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) | |
3092 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
3093 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
3094 | level = lcmos; | |
3095 | } | |
3096 | ||
3097 | if (brightness_mode == 3 && lec != lcmos) { | |
3098 | printk(IBM_ERR | |
3099 | "CMOS NVRAM (%u) and EC (%u) do not agree " | |
3100 | "on display brightness level\n", | |
3101 | (unsigned int) lcmos, | |
3102 | (unsigned int) lec); | |
3103 | return -EIO; | |
3104 | } | |
fb87a811 | 3105 | |
8d297264 | 3106 | return level; |
8acb0250 HM |
3107 | } |
3108 | ||
8acb0250 | 3109 | static int brightness_set(int value) |
1da177e4 | 3110 | { |
f432255e HMH |
3111 | int cmos_cmd, inc, i, res; |
3112 | int current_value; | |
8acb0250 | 3113 | |
24d3b774 HMH |
3114 | if (value > 7) |
3115 | return -EINVAL; | |
8acb0250 | 3116 | |
f432255e HMH |
3117 | res = mutex_lock_interruptible(&brightness_mutex); |
3118 | if (res < 0) | |
3119 | return res; | |
3120 | ||
3121 | current_value = brightness_get(NULL); | |
3122 | if (current_value < 0) { | |
3123 | res = current_value; | |
3124 | goto errout; | |
3125 | } | |
3126 | ||
24d3b774 HMH |
3127 | cmos_cmd = value > current_value ? |
3128 | TP_CMOS_BRIGHTNESS_UP : | |
3129 | TP_CMOS_BRIGHTNESS_DOWN; | |
8acb0250 | 3130 | inc = value > current_value ? 1 : -1; |
24d3b774 | 3131 | |
f432255e | 3132 | res = 0; |
8acb0250 | 3133 | for (i = current_value; i != value; i += inc) { |
24d3b774 | 3134 | if ((brightness_mode & 2) && |
f432255e HMH |
3135 | issue_thinkpad_cmos_command(cmos_cmd)) { |
3136 | res = -EIO; | |
3137 | goto errout; | |
3138 | } | |
24d3b774 | 3139 | if ((brightness_mode & 1) && |
f432255e HMH |
3140 | !acpi_ec_write(brightness_offset, i + inc)) { |
3141 | res = -EIO; | |
3142 | goto errout;; | |
3143 | } | |
8acb0250 HM |
3144 | } |
3145 | ||
f432255e HMH |
3146 | errout: |
3147 | mutex_unlock(&brightness_mutex); | |
3148 | return res; | |
8acb0250 HM |
3149 | } |
3150 | ||
56b6aeb0 HMH |
3151 | static int brightness_read(char *p) |
3152 | { | |
3153 | int len = 0; | |
3154 | int level; | |
3155 | ||
3156 | if ((level = brightness_get(NULL)) < 0) { | |
3157 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
3158 | } else { | |
3159 | len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); | |
3160 | len += sprintf(p + len, "commands:\tup, down\n"); | |
3161 | len += sprintf(p + len, "commands:\tlevel <level>" | |
3162 | " (<level> is 0-7)\n"); | |
3163 | } | |
3164 | ||
3165 | return len; | |
3166 | } | |
3167 | ||
8acb0250 HM |
3168 | static int brightness_write(char *buf) |
3169 | { | |
3170 | int level; | |
78f81cc4 | 3171 | int new_level; |
1da177e4 | 3172 | char *cmd; |
1da177e4 LT |
3173 | |
3174 | while ((cmd = next_cmd(&buf))) { | |
8acb0250 HM |
3175 | if ((level = brightness_get(NULL)) < 0) |
3176 | return level; | |
78f81cc4 BD |
3177 | level &= 7; |
3178 | ||
3179 | if (strlencmp(cmd, "up") == 0) { | |
3180 | new_level = level == 7 ? 7 : level + 1; | |
3181 | } else if (strlencmp(cmd, "down") == 0) { | |
3182 | new_level = level == 0 ? 0 : level - 1; | |
3183 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
3184 | new_level >= 0 && new_level <= 7) { | |
3185 | /* new_level set */ | |
3186 | } else | |
3187 | return -EINVAL; | |
3188 | ||
8acb0250 | 3189 | brightness_set(new_level); |
78f81cc4 BD |
3190 | } |
3191 | ||
3192 | return 0; | |
3193 | } | |
3194 | ||
a5763f22 HMH |
3195 | static struct ibm_struct brightness_driver_data = { |
3196 | .name = "brightness", | |
3197 | .read = brightness_read, | |
3198 | .write = brightness_write, | |
3199 | .exit = brightness_exit, | |
3200 | }; | |
3201 | ||
56b6aeb0 HMH |
3202 | /************************************************************************* |
3203 | * Volume subdriver | |
3204 | */ | |
fb87a811 | 3205 | |
78f81cc4 BD |
3206 | static int volume_read(char *p) |
3207 | { | |
3208 | int len = 0; | |
3209 | u8 level; | |
3210 | ||
3211 | if (!acpi_ec_read(volume_offset, &level)) { | |
3212 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
3213 | } else { | |
3214 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
3215 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
3216 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
3217 | len += sprintf(p + len, "commands:\tlevel <level>" | |
3218 | " (<level> is 0-15)\n"); | |
3219 | } | |
3220 | ||
3221 | return len; | |
3222 | } | |
3223 | ||
78f81cc4 BD |
3224 | static int volume_write(char *buf) |
3225 | { | |
3226 | int cmos_cmd, inc, i; | |
3227 | u8 level, mute; | |
3228 | int new_level, new_mute; | |
3229 | char *cmd; | |
3230 | ||
3231 | while ((cmd = next_cmd(&buf))) { | |
3232 | if (!acpi_ec_read(volume_offset, &level)) | |
3233 | return -EIO; | |
3234 | new_mute = mute = level & 0x40; | |
3235 | new_level = level = level & 0xf; | |
3236 | ||
3237 | if (strlencmp(cmd, "up") == 0) { | |
3238 | if (mute) | |
3239 | new_mute = 0; | |
3240 | else | |
3241 | new_level = level == 15 ? 15 : level + 1; | |
3242 | } else if (strlencmp(cmd, "down") == 0) { | |
3243 | if (mute) | |
3244 | new_mute = 0; | |
3245 | else | |
3246 | new_level = level == 0 ? 0 : level - 1; | |
3247 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
3248 | new_level >= 0 && new_level <= 15) { | |
3249 | /* new_level set */ | |
3250 | } else if (strlencmp(cmd, "mute") == 0) { | |
3251 | new_mute = 0x40; | |
1da177e4 LT |
3252 | } else |
3253 | return -EINVAL; | |
3254 | ||
78f81cc4 | 3255 | if (new_level != level) { /* mute doesn't change */ |
56b6aeb0 | 3256 | cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
78f81cc4 BD |
3257 | inc = new_level > level ? 1 : -1; |
3258 | ||
c9bea99c | 3259 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
3260 | !acpi_ec_write(volume_offset, level))) |
3261 | return -EIO; | |
3262 | ||
3263 | for (i = level; i != new_level; i += inc) | |
c9bea99c | 3264 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
3265 | !acpi_ec_write(volume_offset, i + inc)) |
3266 | return -EIO; | |
3267 | ||
c9bea99c | 3268 | if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
3269 | !acpi_ec_write(volume_offset, |
3270 | new_level + mute))) | |
3271 | return -EIO; | |
3272 | } | |
3273 | ||
3274 | if (new_mute != mute) { /* level doesn't change */ | |
56b6aeb0 | 3275 | cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
78f81cc4 | 3276 | |
c9bea99c | 3277 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
78f81cc4 BD |
3278 | !acpi_ec_write(volume_offset, level + new_mute)) |
3279 | return -EIO; | |
3280 | } | |
3281 | } | |
3282 | ||
3283 | return 0; | |
3284 | } | |
3285 | ||
a5763f22 HMH |
3286 | static struct ibm_struct volume_driver_data = { |
3287 | .name = "volume", | |
3288 | .read = volume_read, | |
3289 | .write = volume_write, | |
3290 | }; | |
56b6aeb0 HMH |
3291 | |
3292 | /************************************************************************* | |
3293 | * Fan subdriver | |
3294 | */ | |
3295 | ||
3296 | /* | |
3297 | * FAN ACCESS MODES | |
3298 | * | |
efa27145 | 3299 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
3300 | * ACPI GFAN method: returns fan level |
3301 | * | |
efa27145 | 3302 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 3303 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 3304 | * |
efa27145 | 3305 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
3306 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
3307 | * | |
f51d1a39 HMH |
3308 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
3309 | * it for writing. | |
56b6aeb0 | 3310 | * |
efa27145 | 3311 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
3312 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
3313 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
3314 | * |
3315 | * Fan speed changes of any sort (including those caused by the | |
3316 | * disengaged mode) are usually done slowly by the firmware as the | |
3317 | * maximum ammount of fan duty cycle change per second seems to be | |
3318 | * limited. | |
3319 | * | |
3320 | * Reading is not available if GFAN exists. | |
3321 | * Writing is not available if SFAN exists. | |
3322 | * | |
3323 | * Bits | |
3324 | * 7 automatic mode engaged; | |
3325 | * (default operation mode of the ThinkPad) | |
3326 | * fan level is ignored in this mode. | |
f51d1a39 | 3327 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 3328 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
3329 | * the tachometer while the fan controller ramps up |
3330 | * the speed (which can take up to a few *minutes*). | |
3331 | * Speeds up fan to 100% duty-cycle, which is far above | |
3332 | * the standard RPM levels. It is not impossible that | |
3333 | * it could cause hardware damage. | |
56b6aeb0 HMH |
3334 | * 5-3 unused in some models. Extra bits for fan level |
3335 | * in others, but still useless as all values above | |
3336 | * 7 map to the same speed as level 7 in these models. | |
3337 | * 2-0 fan level (0..7 usually) | |
3338 | * 0x00 = stop | |
3339 | * 0x07 = max (set when temperatures critical) | |
3340 | * Some ThinkPads may have other levels, see | |
efa27145 | 3341 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
3342 | * |
3343 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
3344 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
3345 | * does so, its initial value is meaningless (0x07). | |
3346 | * | |
3347 | * For firmware bugs, refer to: | |
3348 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
3349 | * | |
3350 | * ---- | |
3351 | * | |
3352 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
3353 | * Main fan tachometer reading (in RPM) | |
3354 | * | |
3355 | * This register is present on all ThinkPads with a new-style EC, and | |
3356 | * it is known not to be present on the A21m/e, and T22, as there is | |
3357 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
3358 | * ThinkPads from this same time period (and earlier) probably lack the | |
3359 | * tachometer as well. | |
3360 | * | |
3361 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
3362 | * was never fixed by IBM to report the EC firmware version string | |
3363 | * probably support the tachometer (like the early X models), so | |
3364 | * detecting it is quite hard. We need more data to know for sure. | |
3365 | * | |
3366 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
3367 | * might result. | |
3368 | * | |
f51d1a39 HMH |
3369 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
3370 | * mode. | |
56b6aeb0 HMH |
3371 | * |
3372 | * For firmware bugs, refer to: | |
3373 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
3374 | * | |
efa27145 | 3375 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
3376 | * ThinkPad X31, X40, X41. Not available in the X60. |
3377 | * | |
3378 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
3379 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
3380 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
3381 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
3382 | * | |
3383 | * The speeds are stored on handles | |
3384 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
3385 | * | |
3386 | * There are three default speed sets, acessible as handles: | |
3387 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
3388 | * | |
3389 | * ACPI DSDT switches which set is in use depending on various | |
3390 | * factors. | |
3391 | * | |
efa27145 | 3392 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
3393 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
3394 | * but the ACPI tables just mention level 7. | |
3395 | */ | |
3396 | ||
69ba91cb HMH |
3397 | static enum fan_status_access_mode fan_status_access_mode; |
3398 | static enum fan_control_access_mode fan_control_access_mode; | |
3399 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 3400 | |
778b4d74 | 3401 | static u8 fan_control_initial_status; |
fe98a52c | 3402 | static u8 fan_control_desired_level; |
778b4d74 | 3403 | |
25c68a33 | 3404 | static void fan_watchdog_fire(struct work_struct *ignored); |
16663a87 | 3405 | static int fan_watchdog_maxinterval; |
25c68a33 | 3406 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 3407 | |
56b6aeb0 HMH |
3408 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
3409 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
3410 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
3411 | ); /* all others */ | |
3412 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
3413 | "JFNS", /* 770x-JL */ | |
3414 | ); /* all others */ | |
3415 | ||
fe98a52c HMH |
3416 | /* |
3417 | * SYSFS fan layout: hwmon compatible (device) | |
3418 | * | |
3419 | * pwm*_enable: | |
3420 | * 0: "disengaged" mode | |
3421 | * 1: manual mode | |
3422 | * 2: native EC "auto" mode (recommended, hardware default) | |
3423 | * | |
3424 | * pwm*: set speed in manual mode, ignored otherwise. | |
3425 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
3426 | * interpolation. | |
3427 | * | |
3428 | * fan*_input: tachometer reading, RPM | |
3429 | * | |
3430 | * | |
3431 | * SYSFS fan layout: extensions | |
3432 | * | |
3433 | * fan_watchdog (driver): | |
3434 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
3435 | */ | |
3436 | ||
3437 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
3438 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
3439 | struct device_attribute *attr, | |
3440 | char *buf) | |
3441 | { | |
3442 | int res, mode; | |
3443 | u8 status; | |
3444 | ||
3445 | res = fan_get_status_safe(&status); | |
3446 | if (res) | |
3447 | return res; | |
3448 | ||
3449 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
3450 | if (status != fan_control_initial_status) { | |
3451 | tp_features.fan_ctrl_status_undef = 0; | |
3452 | } else { | |
3453 | /* Return most likely status. In fact, it | |
3454 | * might be the only possible status */ | |
3455 | status = TP_EC_FAN_AUTO; | |
3456 | } | |
3457 | } | |
3458 | ||
3459 | if (status & TP_EC_FAN_FULLSPEED) { | |
3460 | mode = 0; | |
3461 | } else if (status & TP_EC_FAN_AUTO) { | |
3462 | mode = 2; | |
3463 | } else | |
3464 | mode = 1; | |
3465 | ||
3466 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
3467 | } | |
3468 | ||
3469 | static ssize_t fan_pwm1_enable_store(struct device *dev, | |
3470 | struct device_attribute *attr, | |
3471 | const char *buf, size_t count) | |
3472 | { | |
3473 | unsigned long t; | |
3474 | int res, level; | |
3475 | ||
3476 | if (parse_strtoul(buf, 2, &t)) | |
3477 | return -EINVAL; | |
3478 | ||
3479 | switch (t) { | |
3480 | case 0: | |
3481 | level = TP_EC_FAN_FULLSPEED; | |
3482 | break; | |
3483 | case 1: | |
3484 | level = TPACPI_FAN_LAST_LEVEL; | |
3485 | break; | |
3486 | case 2: | |
3487 | level = TP_EC_FAN_AUTO; | |
3488 | break; | |
3489 | case 3: | |
3490 | /* reserved for software-controlled auto mode */ | |
3491 | return -ENOSYS; | |
3492 | default: | |
3493 | return -EINVAL; | |
3494 | } | |
3495 | ||
3496 | res = fan_set_level_safe(level); | |
c573ddb9 HMH |
3497 | if (res == -ENXIO) |
3498 | return -EINVAL; | |
3499 | else if (res < 0) | |
fe98a52c HMH |
3500 | return res; |
3501 | ||
3502 | fan_watchdog_reset(); | |
3503 | ||
3504 | return count; | |
3505 | } | |
3506 | ||
3507 | static struct device_attribute dev_attr_fan_pwm1_enable = | |
3508 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
3509 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
3510 | ||
3511 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
3512 | static ssize_t fan_pwm1_show(struct device *dev, | |
3513 | struct device_attribute *attr, | |
3514 | char *buf) | |
3515 | { | |
3516 | int res; | |
3517 | u8 status; | |
3518 | ||
3519 | res = fan_get_status_safe(&status); | |
3520 | if (res) | |
3521 | return res; | |
3522 | ||
3523 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
3524 | if (status != fan_control_initial_status) { | |
3525 | tp_features.fan_ctrl_status_undef = 0; | |
3526 | } else { | |
3527 | status = TP_EC_FAN_AUTO; | |
3528 | } | |
3529 | } | |
3530 | ||
3531 | if ((status & | |
3532 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
3533 | status = fan_control_desired_level; | |
3534 | ||
3535 | if (status > 7) | |
3536 | status = 7; | |
3537 | ||
3538 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); | |
3539 | } | |
3540 | ||
3541 | static ssize_t fan_pwm1_store(struct device *dev, | |
3542 | struct device_attribute *attr, | |
3543 | const char *buf, size_t count) | |
3544 | { | |
3545 | unsigned long s; | |
3546 | int rc; | |
3547 | u8 status, newlevel; | |
3548 | ||
3549 | if (parse_strtoul(buf, 255, &s)) | |
3550 | return -EINVAL; | |
3551 | ||
3552 | /* scale down from 0-255 to 0-7 */ | |
3553 | newlevel = (s >> 5) & 0x07; | |
3554 | ||
3555 | rc = mutex_lock_interruptible(&fan_mutex); | |
3556 | if (rc < 0) | |
3557 | return rc; | |
3558 | ||
3559 | rc = fan_get_status(&status); | |
3560 | if (!rc && (status & | |
3561 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
3562 | rc = fan_set_level(newlevel); | |
c573ddb9 HMH |
3563 | if (rc == -ENXIO) |
3564 | rc = -EINVAL; | |
3565 | else if (!rc) { | |
fe98a52c | 3566 | fan_update_desired_level(newlevel); |
ca4ac2f4 HMH |
3567 | fan_watchdog_reset(); |
3568 | } | |
fe98a52c HMH |
3569 | } |
3570 | ||
3571 | mutex_unlock(&fan_mutex); | |
3572 | return (rc)? rc : count; | |
3573 | } | |
3574 | ||
3575 | static struct device_attribute dev_attr_fan_pwm1 = | |
3576 | __ATTR(pwm1, S_IWUSR | S_IRUGO, | |
3577 | fan_pwm1_show, fan_pwm1_store); | |
3578 | ||
3579 | /* sysfs fan fan1_input ------------------------------------------------ */ | |
3580 | static ssize_t fan_fan1_input_show(struct device *dev, | |
3581 | struct device_attribute *attr, | |
3582 | char *buf) | |
3583 | { | |
3584 | int res; | |
3585 | unsigned int speed; | |
3586 | ||
3587 | res = fan_get_speed(&speed); | |
3588 | if (res < 0) | |
3589 | return res; | |
3590 | ||
3591 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
3592 | } | |
3593 | ||
3594 | static struct device_attribute dev_attr_fan_fan1_input = | |
3595 | __ATTR(fan1_input, S_IRUGO, | |
3596 | fan_fan1_input_show, NULL); | |
3597 | ||
3598 | /* sysfs fan fan_watchdog (driver) ------------------------------------- */ | |
3599 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, | |
3600 | char *buf) | |
3601 | { | |
3602 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
3603 | } | |
3604 | ||
3605 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, | |
3606 | const char *buf, size_t count) | |
3607 | { | |
3608 | unsigned long t; | |
3609 | ||
3610 | if (parse_strtoul(buf, 120, &t)) | |
3611 | return -EINVAL; | |
3612 | ||
ecf2a80a HMH |
3613 | if (!fan_control_allowed) |
3614 | return -EPERM; | |
3615 | ||
fe98a52c HMH |
3616 | fan_watchdog_maxinterval = t; |
3617 | fan_watchdog_reset(); | |
3618 | ||
3619 | return count; | |
3620 | } | |
3621 | ||
3622 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, | |
3623 | fan_fan_watchdog_show, fan_fan_watchdog_store); | |
3624 | ||
3625 | /* --------------------------------------------------------------------- */ | |
3626 | static struct attribute *fan_attributes[] = { | |
3627 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, | |
3628 | &dev_attr_fan_fan1_input.attr, | |
3629 | NULL | |
3630 | }; | |
3631 | ||
3632 | static const struct attribute_group fan_attr_group = { | |
3633 | .attrs = fan_attributes, | |
3634 | }; | |
3635 | ||
a5763f22 | 3636 | static int __init fan_init(struct ibm_init_struct *iibm) |
78f81cc4 | 3637 | { |
fe98a52c HMH |
3638 | int rc; |
3639 | ||
fe08bc4b HMH |
3640 | vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); |
3641 | ||
40ca9fdf | 3642 | mutex_init(&fan_mutex); |
efa27145 HMH |
3643 | fan_status_access_mode = TPACPI_FAN_NONE; |
3644 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
69ba91cb | 3645 | fan_control_commands = 0; |
16663a87 | 3646 | fan_watchdog_maxinterval = 0; |
d8fd94d9 | 3647 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 3648 | fan_control_desired_level = 7; |
78f81cc4 | 3649 | |
8d376cd6 HMH |
3650 | IBM_ACPIHANDLE_INIT(fans); |
3651 | IBM_ACPIHANDLE_INIT(gfan); | |
3652 | IBM_ACPIHANDLE_INIT(sfan); | |
5fba344c | 3653 | |
78f81cc4 BD |
3654 | if (gfan_handle) { |
3655 | /* 570, 600e/x, 770e, 770x */ | |
efa27145 | 3656 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; |
69ba91cb HMH |
3657 | } else { |
3658 | /* all other ThinkPads: note that even old-style | |
3659 | * ThinkPad ECs supports the fan control register */ | |
778b4d74 HMH |
3660 | if (likely(acpi_ec_read(fan_status_offset, |
3661 | &fan_control_initial_status))) { | |
efa27145 | 3662 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; |
778b4d74 HMH |
3663 | |
3664 | /* In some ThinkPads, neither the EC nor the ACPI | |
3665 | * DSDT initialize the fan status, and it ends up | |
3666 | * being set to 0x07 when it *could* be either | |
3667 | * 0x07 or 0x80. | |
3668 | * | |
3669 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
3670 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
3671 | * to be buggy. */ | |
d5a2f2f1 HMH |
3672 | if (fan_control_initial_status == 0x07) { |
3673 | switch (thinkpad_id.ec_model) { | |
3674 | case 0x5931: /* TP-1Y */ | |
3675 | case 0x3837: /* TP-78 */ | |
3676 | case 0x3637: /* TP-76 */ | |
3677 | case 0x3037: /* TP-70 */ | |
3678 | printk(IBM_NOTICE | |
3679 | "fan_init: initial fan status is " | |
3680 | "unknown, assuming it is in auto " | |
3681 | "mode\n"); | |
3682 | tp_features.fan_ctrl_status_undef = 1; | |
3683 | ;; | |
3684 | } | |
778b4d74 | 3685 | } |
69ba91cb HMH |
3686 | } else { |
3687 | printk(IBM_ERR | |
3688 | "ThinkPad ACPI EC access misbehaving, " | |
3689 | "fan status and control unavailable\n"); | |
5fba344c | 3690 | return 1; |
69ba91cb HMH |
3691 | } |
3692 | } | |
78f81cc4 | 3693 | |
69ba91cb HMH |
3694 | if (sfan_handle) { |
3695 | /* 570, 770x-JL */ | |
efa27145 | 3696 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; |
1c6a334e | 3697 | fan_control_commands |= |
efa27145 | 3698 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; |
78f81cc4 | 3699 | } else { |
69ba91cb HMH |
3700 | if (!gfan_handle) { |
3701 | /* gfan without sfan means no fan control */ | |
3702 | /* all other models implement TP EC 0x2f control */ | |
3703 | ||
3704 | if (fans_handle) { | |
a8b7a662 | 3705 | /* X31, X40, X41 */ |
69ba91cb | 3706 | fan_control_access_mode = |
efa27145 | 3707 | TPACPI_FAN_WR_ACPI_FANS; |
69ba91cb | 3708 | fan_control_commands |= |
efa27145 HMH |
3709 | TPACPI_FAN_CMD_SPEED | |
3710 | TPACPI_FAN_CMD_LEVEL | | |
3711 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb | 3712 | } else { |
efa27145 | 3713 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; |
a12095c2 | 3714 | fan_control_commands |= |
efa27145 HMH |
3715 | TPACPI_FAN_CMD_LEVEL | |
3716 | TPACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
3717 | } |
3718 | } | |
3719 | } | |
3720 | ||
fe08bc4b HMH |
3721 | vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", |
3722 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || | |
3723 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
3724 | fan_status_access_mode, fan_control_access_mode); | |
3725 | ||
ecf2a80a HMH |
3726 | /* fan control master switch */ |
3727 | if (!fan_control_allowed) { | |
3728 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
3729 | fan_control_commands = 0; | |
3730 | dbg_printk(TPACPI_DBG_INIT, | |
3731 | "fan control features disabled by parameter\n"); | |
3732 | } | |
3733 | ||
fe98a52c HMH |
3734 | /* update fan_control_desired_level */ |
3735 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
3736 | fan_get_status_safe(NULL); | |
3737 | ||
3738 | if (fan_status_access_mode != TPACPI_FAN_NONE || | |
3739 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
3740 | rc = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
3741 | &fan_attr_group); | |
3742 | if (!(rc < 0)) | |
3743 | rc = driver_create_file(&tpacpi_pdriver.driver, | |
3744 | &driver_attr_fan_watchdog); | |
3745 | if (rc < 0) | |
3746 | return rc; | |
3747 | return 0; | |
3748 | } else | |
3749 | return 1; | |
3750 | } | |
3751 | ||
3752 | /* | |
3753 | * Call with fan_mutex held | |
3754 | */ | |
3755 | static void fan_update_desired_level(u8 status) | |
3756 | { | |
3757 | if ((status & | |
3758 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
3759 | if (status > 7) | |
3760 | fan_control_desired_level = 7; | |
3761 | else | |
3762 | fan_control_desired_level = status; | |
3763 | } | |
69ba91cb | 3764 | } |
78f81cc4 | 3765 | |
c52f0aa5 | 3766 | static int fan_get_status(u8 *status) |
78f81cc4 | 3767 | { |
c52f0aa5 | 3768 | u8 s; |
78f81cc4 | 3769 | |
a8b7a662 | 3770 | /* TODO: |
efa27145 | 3771 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ |
a8b7a662 | 3772 | |
3ef8a609 | 3773 | switch (fan_status_access_mode) { |
efa27145 | 3774 | case TPACPI_FAN_RD_ACPI_GFAN: |
78f81cc4 | 3775 | /* 570, 600e/x, 770e, 770x */ |
c52f0aa5 HMH |
3776 | |
3777 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) | |
1da177e4 | 3778 | return -EIO; |
78f81cc4 | 3779 | |
c52f0aa5 HMH |
3780 | if (likely(status)) |
3781 | *status = s & 0x07; | |
3ef8a609 HMH |
3782 | |
3783 | break; | |
3784 | ||
efa27145 | 3785 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 3786 | /* all except 570, 600e/x, 770e, 770x */ |
c52f0aa5 | 3787 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
3ef8a609 | 3788 | return -EIO; |
78f81cc4 | 3789 | |
c52f0aa5 HMH |
3790 | if (likely(status)) |
3791 | *status = s; | |
3792 | ||
3793 | break; | |
3794 | ||
3795 | default: | |
3796 | return -ENXIO; | |
78f81cc4 BD |
3797 | } |
3798 | ||
c52f0aa5 HMH |
3799 | return 0; |
3800 | } | |
3801 | ||
fe98a52c HMH |
3802 | static int fan_get_status_safe(u8 *status) |
3803 | { | |
3804 | int rc; | |
3805 | u8 s; | |
3806 | ||
3807 | rc = mutex_lock_interruptible(&fan_mutex); | |
3808 | if (rc < 0) | |
3809 | return rc; | |
3810 | rc = fan_get_status(&s); | |
3811 | if (!rc) | |
3812 | fan_update_desired_level(s); | |
3813 | mutex_unlock(&fan_mutex); | |
3814 | ||
3815 | if (status) | |
3816 | *status = s; | |
3817 | ||
3818 | return rc; | |
3819 | } | |
3820 | ||
56b6aeb0 HMH |
3821 | static void fan_exit(void) |
3822 | { | |
99fba3f8 | 3823 | vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n"); |
fe98a52c HMH |
3824 | |
3825 | /* FIXME: can we really do this unconditionally? */ | |
3826 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, &fan_attr_group); | |
3827 | driver_remove_file(&tpacpi_pdriver.driver, &driver_attr_fan_watchdog); | |
3828 | ||
56b6aeb0 HMH |
3829 | cancel_delayed_work(&fan_watchdog_task); |
3830 | flush_scheduled_work(); | |
3831 | } | |
3832 | ||
c52f0aa5 HMH |
3833 | static int fan_get_speed(unsigned int *speed) |
3834 | { | |
3835 | u8 hi, lo; | |
3836 | ||
3837 | switch (fan_status_access_mode) { | |
efa27145 | 3838 | case TPACPI_FAN_RD_TPEC: |
78f81cc4 | 3839 | /* all except 570, 600e/x, 770e, 770x */ |
3ef8a609 HMH |
3840 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
3841 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
3842 | return -EIO; | |
3ef8a609 | 3843 | |
c52f0aa5 HMH |
3844 | if (likely(speed)) |
3845 | *speed = (hi << 8) | lo; | |
3846 | ||
3847 | break; | |
3848 | ||
3849 | default: | |
3850 | return -ENXIO; | |
3851 | } | |
3852 | ||
3853 | return 0; | |
3854 | } | |
3855 | ||
56b6aeb0 | 3856 | static void fan_watchdog_fire(struct work_struct *ignored) |
16663a87 | 3857 | { |
99fba3f8 HMH |
3858 | int rc; |
3859 | ||
56b6aeb0 | 3860 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); |
99fba3f8 HMH |
3861 | rc = fan_set_enable(); |
3862 | if (rc < 0) { | |
3863 | printk(IBM_ERR "fan watchdog: error %d while enabling fan, " | |
3864 | "will try again later...\n", -rc); | |
56b6aeb0 HMH |
3865 | /* reschedule for later */ |
3866 | fan_watchdog_reset(); | |
3867 | } | |
16663a87 HMH |
3868 | } |
3869 | ||
3870 | static void fan_watchdog_reset(void) | |
3871 | { | |
94954cc6 | 3872 | static int fan_watchdog_active; |
16663a87 | 3873 | |
4985cd0a HMH |
3874 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
3875 | return; | |
3876 | ||
16663a87 HMH |
3877 | if (fan_watchdog_active) |
3878 | cancel_delayed_work(&fan_watchdog_task); | |
3879 | ||
3880 | if (fan_watchdog_maxinterval > 0) { | |
3881 | fan_watchdog_active = 1; | |
3882 | if (!schedule_delayed_work(&fan_watchdog_task, | |
3883 | msecs_to_jiffies(fan_watchdog_maxinterval | |
3884 | * 1000))) { | |
3885 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
3886 | "watchdog will not trigger\n"); | |
3887 | } | |
3888 | } else | |
3889 | fan_watchdog_active = 0; | |
3890 | } | |
3891 | ||
18ad7996 | 3892 | static int fan_set_level(int level) |
78f81cc4 | 3893 | { |
ecf2a80a HMH |
3894 | if (!fan_control_allowed) |
3895 | return -EPERM; | |
3896 | ||
18ad7996 | 3897 | switch (fan_control_access_mode) { |
efa27145 | 3898 | case TPACPI_FAN_WR_ACPI_SFAN: |
18ad7996 | 3899 | if (level >= 0 && level <= 7) { |
fe98a52c | 3900 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
78f81cc4 | 3901 | return -EIO; |
18ad7996 HMH |
3902 | } else |
3903 | return -EINVAL; | |
3904 | break; | |
3905 | ||
efa27145 HMH |
3906 | case TPACPI_FAN_WR_ACPI_FANS: |
3907 | case TPACPI_FAN_WR_TPEC: | |
3908 | if ((level != TP_EC_FAN_AUTO) && | |
3909 | (level != TP_EC_FAN_FULLSPEED) && | |
a12095c2 HMH |
3910 | ((level < 0) || (level > 7))) |
3911 | return -EINVAL; | |
3912 | ||
eaa7571b HMH |
3913 | /* safety net should the EC not support AUTO |
3914 | * or FULLSPEED mode bits and just ignore them */ | |
3915 | if (level & TP_EC_FAN_FULLSPEED) | |
3916 | level |= 7; /* safety min speed 7 */ | |
3917 | else if (level & TP_EC_FAN_FULLSPEED) | |
3918 | level |= 4; /* safety min speed 4 */ | |
3919 | ||
fe98a52c | 3920 | if (!acpi_ec_write(fan_status_offset, level)) |
a12095c2 | 3921 | return -EIO; |
778b4d74 | 3922 | else |
d8fd94d9 | 3923 | tp_features.fan_ctrl_status_undef = 0; |
a12095c2 HMH |
3924 | break; |
3925 | ||
18ad7996 HMH |
3926 | default: |
3927 | return -ENXIO; | |
3928 | } | |
3929 | return 0; | |
3930 | } | |
3931 | ||
fe98a52c HMH |
3932 | static int fan_set_level_safe(int level) |
3933 | { | |
3934 | int rc; | |
3935 | ||
ecf2a80a HMH |
3936 | if (!fan_control_allowed) |
3937 | return -EPERM; | |
3938 | ||
fe98a52c HMH |
3939 | rc = mutex_lock_interruptible(&fan_mutex); |
3940 | if (rc < 0) | |
3941 | return rc; | |
3942 | ||
3943 | if (level == TPACPI_FAN_LAST_LEVEL) | |
3944 | level = fan_control_desired_level; | |
3945 | ||
3946 | rc = fan_set_level(level); | |
3947 | if (!rc) | |
3948 | fan_update_desired_level(level); | |
3949 | ||
3950 | mutex_unlock(&fan_mutex); | |
3951 | return rc; | |
3952 | } | |
3953 | ||
18ad7996 HMH |
3954 | static int fan_set_enable(void) |
3955 | { | |
1c6a334e HMH |
3956 | u8 s; |
3957 | int rc; | |
3958 | ||
ecf2a80a HMH |
3959 | if (!fan_control_allowed) |
3960 | return -EPERM; | |
3961 | ||
40ca9fdf HMH |
3962 | rc = mutex_lock_interruptible(&fan_mutex); |
3963 | if (rc < 0) | |
3964 | return rc; | |
3965 | ||
18ad7996 | 3966 | switch (fan_control_access_mode) { |
efa27145 HMH |
3967 | case TPACPI_FAN_WR_ACPI_FANS: |
3968 | case TPACPI_FAN_WR_TPEC: | |
40ca9fdf HMH |
3969 | rc = fan_get_status(&s); |
3970 | if (rc < 0) | |
3971 | break; | |
1c6a334e HMH |
3972 | |
3973 | /* Don't go out of emergency fan mode */ | |
eaa7571b HMH |
3974 | if (s != 7) { |
3975 | s &= 0x07; | |
3976 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
3977 | } | |
1c6a334e HMH |
3978 | |
3979 | if (!acpi_ec_write(fan_status_offset, s)) | |
40ca9fdf HMH |
3980 | rc = -EIO; |
3981 | else { | |
d8fd94d9 | 3982 | tp_features.fan_ctrl_status_undef = 0; |
40ca9fdf HMH |
3983 | rc = 0; |
3984 | } | |
1c6a334e HMH |
3985 | break; |
3986 | ||
efa27145 | 3987 | case TPACPI_FAN_WR_ACPI_SFAN: |
40ca9fdf HMH |
3988 | rc = fan_get_status(&s); |
3989 | if (rc < 0) | |
3990 | break; | |
1c6a334e HMH |
3991 | |
3992 | s &= 0x07; | |
3993 | ||
3994 | /* Set fan to at least level 4 */ | |
eaa7571b | 3995 | s |= 4; |
1c6a334e HMH |
3996 | |
3997 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) | |
40ca9fdf HMH |
3998 | rc= -EIO; |
3999 | else | |
4000 | rc = 0; | |
18ad7996 HMH |
4001 | break; |
4002 | ||
4003 | default: | |
40ca9fdf | 4004 | rc = -ENXIO; |
18ad7996 | 4005 | } |
40ca9fdf HMH |
4006 | |
4007 | mutex_unlock(&fan_mutex); | |
4008 | return rc; | |
18ad7996 HMH |
4009 | } |
4010 | ||
4011 | static int fan_set_disable(void) | |
4012 | { | |
40ca9fdf HMH |
4013 | int rc; |
4014 | ||
ecf2a80a HMH |
4015 | if (!fan_control_allowed) |
4016 | return -EPERM; | |
4017 | ||
40ca9fdf HMH |
4018 | rc = mutex_lock_interruptible(&fan_mutex); |
4019 | if (rc < 0) | |
4020 | return rc; | |
4021 | ||
4022 | rc = 0; | |
18ad7996 | 4023 | switch (fan_control_access_mode) { |
efa27145 HMH |
4024 | case TPACPI_FAN_WR_ACPI_FANS: |
4025 | case TPACPI_FAN_WR_TPEC: | |
18ad7996 | 4026 | if (!acpi_ec_write(fan_status_offset, 0x00)) |
40ca9fdf | 4027 | rc = -EIO; |
fe98a52c HMH |
4028 | else { |
4029 | fan_control_desired_level = 0; | |
d8fd94d9 | 4030 | tp_features.fan_ctrl_status_undef = 0; |
fe98a52c | 4031 | } |
18ad7996 HMH |
4032 | break; |
4033 | ||
efa27145 | 4034 | case TPACPI_FAN_WR_ACPI_SFAN: |
1c6a334e | 4035 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) |
40ca9fdf | 4036 | rc = -EIO; |
fe98a52c HMH |
4037 | else |
4038 | fan_control_desired_level = 0; | |
1c6a334e HMH |
4039 | break; |
4040 | ||
18ad7996 | 4041 | default: |
40ca9fdf | 4042 | rc = -ENXIO; |
18ad7996 | 4043 | } |
40ca9fdf | 4044 | |
fe98a52c | 4045 | |
40ca9fdf HMH |
4046 | mutex_unlock(&fan_mutex); |
4047 | return rc; | |
56b6aeb0 HMH |
4048 | } |
4049 | ||
4050 | static int fan_set_speed(int speed) | |
4051 | { | |
40ca9fdf HMH |
4052 | int rc; |
4053 | ||
ecf2a80a HMH |
4054 | if (!fan_control_allowed) |
4055 | return -EPERM; | |
4056 | ||
40ca9fdf HMH |
4057 | rc = mutex_lock_interruptible(&fan_mutex); |
4058 | if (rc < 0) | |
4059 | return rc; | |
4060 | ||
4061 | rc = 0; | |
56b6aeb0 | 4062 | switch (fan_control_access_mode) { |
efa27145 | 4063 | case TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
4064 | if (speed >= 0 && speed <= 65535) { |
4065 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
4066 | speed, speed, speed)) | |
40ca9fdf | 4067 | rc = -EIO; |
56b6aeb0 | 4068 | } else |
40ca9fdf | 4069 | rc = -EINVAL; |
56b6aeb0 HMH |
4070 | break; |
4071 | ||
4072 | default: | |
40ca9fdf | 4073 | rc = -ENXIO; |
56b6aeb0 | 4074 | } |
40ca9fdf HMH |
4075 | |
4076 | mutex_unlock(&fan_mutex); | |
4077 | return rc; | |
56b6aeb0 HMH |
4078 | } |
4079 | ||
4080 | static int fan_read(char *p) | |
4081 | { | |
4082 | int len = 0; | |
4083 | int rc; | |
4084 | u8 status; | |
4085 | unsigned int speed = 0; | |
4086 | ||
4087 | switch (fan_status_access_mode) { | |
efa27145 | 4088 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 4089 | /* 570, 600e/x, 770e, 770x */ |
fe98a52c | 4090 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
4091 | return rc; |
4092 | ||
4093 | len += sprintf(p + len, "status:\t\t%s\n" | |
4094 | "level:\t\t%d\n", | |
4095 | (status != 0) ? "enabled" : "disabled", status); | |
4096 | break; | |
4097 | ||
efa27145 | 4098 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 4099 | /* all except 570, 600e/x, 770e, 770x */ |
fe98a52c | 4100 | if ((rc = fan_get_status_safe(&status)) < 0) |
56b6aeb0 HMH |
4101 | return rc; |
4102 | ||
d8fd94d9 | 4103 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
56b6aeb0 | 4104 | if (status != fan_control_initial_status) |
d8fd94d9 | 4105 | tp_features.fan_ctrl_status_undef = 0; |
56b6aeb0 HMH |
4106 | else |
4107 | /* Return most likely status. In fact, it | |
4108 | * might be the only possible status */ | |
efa27145 | 4109 | status = TP_EC_FAN_AUTO; |
56b6aeb0 HMH |
4110 | } |
4111 | ||
4112 | len += sprintf(p + len, "status:\t\t%s\n", | |
4113 | (status != 0) ? "enabled" : "disabled"); | |
4114 | ||
56b6aeb0 HMH |
4115 | if ((rc = fan_get_speed(&speed)) < 0) |
4116 | return rc; | |
4117 | ||
4118 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
4119 | ||
efa27145 | 4120 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 HMH |
4121 | /* Disengaged mode takes precedence */ |
4122 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
efa27145 | 4123 | else if (status & TP_EC_FAN_AUTO) |
56b6aeb0 HMH |
4124 | len += sprintf(p + len, "level:\t\tauto\n"); |
4125 | else | |
4126 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
4127 | break; | |
4128 | ||
efa27145 | 4129 | case TPACPI_FAN_NONE: |
56b6aeb0 HMH |
4130 | default: |
4131 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
4132 | } | |
4133 | ||
efa27145 | 4134 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
56b6aeb0 HMH |
4135 | len += sprintf(p + len, "commands:\tlevel <level>"); |
4136 | ||
4137 | switch (fan_control_access_mode) { | |
efa27145 | 4138 | case TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
4139 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
4140 | break; | |
4141 | ||
4142 | default: | |
4143 | len += sprintf(p + len, " (<level> is 0-7, " | |
fe98a52c | 4144 | "auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
4145 | break; |
4146 | } | |
4147 | } | |
18ad7996 | 4148 | |
efa27145 | 4149 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
56b6aeb0 HMH |
4150 | len += sprintf(p + len, "commands:\tenable, disable\n" |
4151 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
4152 | "1-120 (seconds))\n"); | |
1da177e4 | 4153 | |
efa27145 | 4154 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
56b6aeb0 HMH |
4155 | len += sprintf(p + len, "commands:\tspeed <speed>" |
4156 | " (<speed> is 0-65535)\n"); | |
4157 | ||
4158 | return len; | |
78f81cc4 BD |
4159 | } |
4160 | ||
18ad7996 HMH |
4161 | static int fan_write_cmd_level(const char *cmd, int *rc) |
4162 | { | |
4163 | int level; | |
4164 | ||
a12095c2 | 4165 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 4166 | level = TP_EC_FAN_AUTO; |
fe98a52c HMH |
4167 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
4168 | (strlencmp(cmd, "level full-speed") == 0)) | |
efa27145 | 4169 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 4170 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
4171 | return 0; |
4172 | ||
fe98a52c | 4173 | if ((*rc = fan_set_level_safe(level)) == -ENXIO) |
18ad7996 HMH |
4174 | printk(IBM_ERR "level command accepted for unsupported " |
4175 | "access mode %d", fan_control_access_mode); | |
4176 | ||
4177 | return 1; | |
4178 | } | |
4179 | ||
4180 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
4181 | { | |
4182 | if (strlencmp(cmd, "enable") != 0) | |
4183 | return 0; | |
4184 | ||
4185 | if ((*rc = fan_set_enable()) == -ENXIO) | |
4186 | printk(IBM_ERR "enable command accepted for unsupported " | |
4187 | "access mode %d", fan_control_access_mode); | |
4188 | ||
4189 | return 1; | |
4190 | } | |
4191 | ||
4192 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
4193 | { | |
4194 | if (strlencmp(cmd, "disable") != 0) | |
4195 | return 0; | |
4196 | ||
4197 | if ((*rc = fan_set_disable()) == -ENXIO) | |
4198 | printk(IBM_ERR "disable command accepted for unsupported " | |
4199 | "access mode %d", fan_control_access_mode); | |
4200 | ||
4201 | return 1; | |
4202 | } | |
4203 | ||
4204 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
4205 | { | |
4206 | int speed; | |
4207 | ||
a8b7a662 HMH |
4208 | /* TODO: |
4209 | * Support speed <low> <medium> <high> ? */ | |
4210 | ||
18ad7996 HMH |
4211 | if (sscanf(cmd, "speed %d", &speed) != 1) |
4212 | return 0; | |
4213 | ||
4214 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
4215 | printk(IBM_ERR "speed command accepted for unsupported " | |
4216 | "access mode %d", fan_control_access_mode); | |
4217 | ||
4218 | return 1; | |
4219 | } | |
4220 | ||
16663a87 HMH |
4221 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
4222 | { | |
4223 | int interval; | |
4224 | ||
4225 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
4226 | return 0; | |
4227 | ||
4228 | if (interval < 0 || interval > 120) | |
4229 | *rc = -EINVAL; | |
4230 | else | |
4231 | fan_watchdog_maxinterval = interval; | |
4232 | ||
4233 | return 1; | |
4234 | } | |
4235 | ||
18ad7996 HMH |
4236 | static int fan_write(char *buf) |
4237 | { | |
4238 | char *cmd; | |
4239 | int rc = 0; | |
4240 | ||
4241 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 4242 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 4243 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 4244 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 4245 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
4246 | fan_write_cmd_disable(cmd, &rc) || |
4247 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 4248 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
4249 | fan_write_cmd_speed(cmd, &rc)) |
4250 | ) | |
4251 | rc = -EINVAL; | |
16663a87 HMH |
4252 | else if (!rc) |
4253 | fan_watchdog_reset(); | |
18ad7996 HMH |
4254 | } |
4255 | ||
4256 | return rc; | |
4257 | } | |
4258 | ||
a5763f22 HMH |
4259 | static struct ibm_struct fan_driver_data = { |
4260 | .name = "fan", | |
4261 | .read = fan_read, | |
4262 | .write = fan_write, | |
4263 | .exit = fan_exit, | |
a5763f22 HMH |
4264 | }; |
4265 | ||
56b6aeb0 HMH |
4266 | /**************************************************************************** |
4267 | **************************************************************************** | |
4268 | * | |
4269 | * Infrastructure | |
4270 | * | |
4271 | **************************************************************************** | |
4272 | ****************************************************************************/ | |
4273 | ||
4274 | /* /proc support */ | |
94954cc6 | 4275 | static struct proc_dir_entry *proc_dir; |
16663a87 | 4276 | |
56b6aeb0 | 4277 | /* Subdriver registry */ |
a5763f22 HMH |
4278 | static LIST_HEAD(tpacpi_all_drivers); |
4279 | ||
1da177e4 | 4280 | |
56b6aeb0 HMH |
4281 | /* |
4282 | * Module and infrastructure proble, init and exit handling | |
4283 | */ | |
1da177e4 | 4284 | |
fe08bc4b | 4285 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 4286 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 4287 | { |
a5763f22 | 4288 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 4289 | |
a5763f22 | 4290 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
4291 | } |
4292 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
4293 | ||
a5763f22 | 4294 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
4295 | { |
4296 | int ret; | |
a5763f22 | 4297 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
4298 | struct proc_dir_entry *entry; |
4299 | ||
a5763f22 HMH |
4300 | BUG_ON(ibm == NULL); |
4301 | ||
4302 | INIT_LIST_HEAD(&ibm->all_drivers); | |
4303 | ||
92641177 | 4304 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
4305 | return 0; |
4306 | ||
fe08bc4b HMH |
4307 | dbg_printk(TPACPI_DBG_INIT, |
4308 | "probing for %s\n", ibm->name); | |
4309 | ||
a5763f22 HMH |
4310 | if (iibm->init) { |
4311 | ret = iibm->init(iibm); | |
5fba344c HMH |
4312 | if (ret > 0) |
4313 | return 0; /* probe failed */ | |
4314 | if (ret) | |
1da177e4 | 4315 | return ret; |
a5763f22 | 4316 | |
92641177 | 4317 | ibm->flags.init_called = 1; |
1da177e4 LT |
4318 | } |
4319 | ||
8d376cd6 HMH |
4320 | if (ibm->acpi) { |
4321 | if (ibm->acpi->hid) { | |
4322 | ret = register_tpacpi_subdriver(ibm); | |
4323 | if (ret) | |
4324 | goto err_out; | |
4325 | } | |
5fba344c | 4326 | |
8d376cd6 HMH |
4327 | if (ibm->acpi->notify) { |
4328 | ret = setup_acpi_notify(ibm); | |
4329 | if (ret == -ENODEV) { | |
4330 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
4331 | ibm->name); | |
4332 | ret = 0; | |
4333 | goto err_out; | |
4334 | } | |
4335 | if (ret < 0) | |
4336 | goto err_out; | |
5fba344c | 4337 | } |
5fba344c HMH |
4338 | } |
4339 | ||
fe08bc4b HMH |
4340 | dbg_printk(TPACPI_DBG_INIT, |
4341 | "%s installed\n", ibm->name); | |
4342 | ||
78f81cc4 BD |
4343 | if (ibm->read) { |
4344 | entry = create_proc_entry(ibm->name, | |
4345 | S_IFREG | S_IRUGO | S_IWUSR, | |
4346 | proc_dir); | |
4347 | if (!entry) { | |
4348 | printk(IBM_ERR "unable to create proc entry %s\n", | |
4349 | ibm->name); | |
5fba344c HMH |
4350 | ret = -ENODEV; |
4351 | goto err_out; | |
78f81cc4 BD |
4352 | } |
4353 | entry->owner = THIS_MODULE; | |
4354 | entry->data = ibm; | |
8d376cd6 | 4355 | entry->read_proc = &dispatch_procfs_read; |
78f81cc4 | 4356 | if (ibm->write) |
8d376cd6 | 4357 | entry->write_proc = &dispatch_procfs_write; |
92641177 | 4358 | ibm->flags.proc_created = 1; |
78f81cc4 | 4359 | } |
1da177e4 | 4360 | |
a5763f22 HMH |
4361 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
4362 | ||
1da177e4 | 4363 | return 0; |
5fba344c HMH |
4364 | |
4365 | err_out: | |
fe08bc4b HMH |
4366 | dbg_printk(TPACPI_DBG_INIT, |
4367 | "%s: at error exit path with result %d\n", | |
4368 | ibm->name, ret); | |
4369 | ||
5fba344c HMH |
4370 | ibm_exit(ibm); |
4371 | return (ret < 0)? ret : 0; | |
1da177e4 LT |
4372 | } |
4373 | ||
4374 | static void ibm_exit(struct ibm_struct *ibm) | |
4375 | { | |
fe08bc4b | 4376 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); |
a5763f22 HMH |
4377 | |
4378 | list_del_init(&ibm->all_drivers); | |
4379 | ||
8d376cd6 | 4380 | if (ibm->flags.acpi_notify_installed) { |
fe08bc4b HMH |
4381 | dbg_printk(TPACPI_DBG_EXIT, |
4382 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
8d376cd6 HMH |
4383 | BUG_ON(!ibm->acpi); |
4384 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
4385 | ibm->acpi->type, | |
4386 | dispatch_acpi_notify); | |
4387 | ibm->flags.acpi_notify_installed = 0; | |
4388 | ibm->flags.acpi_notify_installed = 0; | |
5fba344c | 4389 | } |
1da177e4 | 4390 | |
92641177 | 4391 | if (ibm->flags.proc_created) { |
fe08bc4b HMH |
4392 | dbg_printk(TPACPI_DBG_EXIT, |
4393 | "%s: remove_proc_entry\n", ibm->name); | |
1da177e4 | 4394 | remove_proc_entry(ibm->name, proc_dir); |
92641177 | 4395 | ibm->flags.proc_created = 0; |
5fba344c | 4396 | } |
1da177e4 | 4397 | |
8d376cd6 | 4398 | if (ibm->flags.acpi_driver_registered) { |
fe08bc4b HMH |
4399 | dbg_printk(TPACPI_DBG_EXIT, |
4400 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
8d376cd6 HMH |
4401 | BUG_ON(!ibm->acpi); |
4402 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
4403 | kfree(ibm->acpi->driver); | |
4404 | ibm->acpi->driver = NULL; | |
4405 | ibm->flags.acpi_driver_registered = 0; | |
5fba344c HMH |
4406 | } |
4407 | ||
92641177 | 4408 | if (ibm->flags.init_called && ibm->exit) { |
5fba344c | 4409 | ibm->exit(); |
92641177 | 4410 | ibm->flags.init_called = 0; |
1da177e4 | 4411 | } |
a5763f22 HMH |
4412 | |
4413 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
1da177e4 LT |
4414 | } |
4415 | ||
56b6aeb0 HMH |
4416 | /* Probing */ |
4417 | ||
d5a2f2f1 | 4418 | static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) |
1da177e4 | 4419 | { |
56b6aeb0 HMH |
4420 | struct dmi_device *dev = NULL; |
4421 | char ec_fw_string[18]; | |
1da177e4 | 4422 | |
d5a2f2f1 HMH |
4423 | if (!tp) |
4424 | return; | |
4425 | ||
4426 | memset(tp, 0, sizeof(*tp)); | |
4427 | ||
4428 | if (dmi_name_in_vendors("IBM")) | |
4429 | tp->vendor = PCI_VENDOR_ID_IBM; | |
4430 | else if (dmi_name_in_vendors("LENOVO")) | |
4431 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
4432 | else | |
4433 | return; | |
4434 | ||
4435 | tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), | |
4436 | GFP_KERNEL); | |
4437 | if (!tp->bios_version_str) | |
4438 | return; | |
4439 | tp->bios_model = tp->bios_version_str[0] | |
4440 | | (tp->bios_version_str[1] << 8); | |
4441 | ||
56b6aeb0 HMH |
4442 | /* |
4443 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
4444 | * X32 or newer, all Z series; Some models must have an | |
4445 | * up-to-date BIOS or they will not be detected. | |
4446 | * | |
4447 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
4448 | */ | |
4449 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
4450 | if (sscanf(dev->name, | |
4451 | "IBM ThinkPad Embedded Controller -[%17c", | |
4452 | ec_fw_string) == 1) { | |
4453 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
4454 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 HMH |
4455 | |
4456 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
4457 | tp->ec_model = ec_fw_string[0] | |
4458 | | (ec_fw_string[1] << 8); | |
4459 | break; | |
78f81cc4 | 4460 | } |
1da177e4 | 4461 | } |
d5a2f2f1 HMH |
4462 | |
4463 | tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), | |
4464 | GFP_KERNEL); | |
4465 | if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { | |
4466 | kfree(tp->model_str); | |
4467 | tp->model_str = NULL; | |
4468 | } | |
1da177e4 LT |
4469 | } |
4470 | ||
5fba344c HMH |
4471 | static int __init probe_for_thinkpad(void) |
4472 | { | |
4473 | int is_thinkpad; | |
4474 | ||
4475 | if (acpi_disabled) | |
4476 | return -ENODEV; | |
4477 | ||
4478 | /* | |
4479 | * Non-ancient models have better DMI tagging, but very old models | |
4480 | * don't. | |
4481 | */ | |
d5a2f2f1 | 4482 | is_thinkpad = (thinkpad_id.model_str != NULL); |
5fba344c HMH |
4483 | |
4484 | /* ec is required because many other handles are relative to it */ | |
8d376cd6 | 4485 | IBM_ACPIHANDLE_INIT(ec); |
5fba344c HMH |
4486 | if (!ec_handle) { |
4487 | if (is_thinkpad) | |
4488 | printk(IBM_ERR | |
4489 | "Not yet supported ThinkPad detected!\n"); | |
4490 | return -ENODEV; | |
4491 | } | |
4492 | ||
0dcef77c HMH |
4493 | /* |
4494 | * Risks a regression on very old machines, but reduces potential | |
4495 | * false positives a damn great deal | |
4496 | */ | |
4497 | if (!is_thinkpad) | |
d5a2f2f1 | 4498 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
0dcef77c HMH |
4499 | |
4500 | if (!is_thinkpad && !force_load) | |
4501 | return -ENODEV; | |
4502 | ||
5fba344c HMH |
4503 | return 0; |
4504 | } | |
4505 | ||
4506 | ||
56b6aeb0 | 4507 | /* Module init, exit, parameters */ |
1da177e4 | 4508 | |
a5763f22 HMH |
4509 | static struct ibm_init_struct ibms_init[] __initdata = { |
4510 | { | |
4511 | .init = thinkpad_acpi_driver_init, | |
4512 | .data = &thinkpad_acpi_driver_data, | |
4513 | }, | |
4514 | { | |
4515 | .init = hotkey_init, | |
4516 | .data = &hotkey_driver_data, | |
4517 | }, | |
4518 | { | |
4519 | .init = bluetooth_init, | |
4520 | .data = &bluetooth_driver_data, | |
4521 | }, | |
4522 | { | |
4523 | .init = wan_init, | |
4524 | .data = &wan_driver_data, | |
4525 | }, | |
4526 | { | |
4527 | .init = video_init, | |
4528 | .data = &video_driver_data, | |
4529 | }, | |
4530 | { | |
4531 | .init = light_init, | |
4532 | .data = &light_driver_data, | |
4533 | }, | |
4534 | #ifdef CONFIG_THINKPAD_ACPI_DOCK | |
4535 | { | |
4536 | .init = dock_init, | |
4537 | .data = &dock_driver_data[0], | |
4538 | }, | |
4539 | { | |
d94a7f16 | 4540 | .init = dock_init2, |
a5763f22 HMH |
4541 | .data = &dock_driver_data[1], |
4542 | }, | |
4543 | #endif | |
4544 | #ifdef CONFIG_THINKPAD_ACPI_BAY | |
4545 | { | |
4546 | .init = bay_init, | |
4547 | .data = &bay_driver_data, | |
4548 | }, | |
4549 | #endif | |
4550 | { | |
4551 | .init = cmos_init, | |
4552 | .data = &cmos_driver_data, | |
4553 | }, | |
4554 | { | |
4555 | .init = led_init, | |
4556 | .data = &led_driver_data, | |
4557 | }, | |
4558 | { | |
4559 | .init = beep_init, | |
4560 | .data = &beep_driver_data, | |
4561 | }, | |
4562 | { | |
4563 | .init = thermal_init, | |
4564 | .data = &thermal_driver_data, | |
4565 | }, | |
4566 | { | |
4567 | .data = &ecdump_driver_data, | |
4568 | }, | |
4569 | { | |
4570 | .init = brightness_init, | |
4571 | .data = &brightness_driver_data, | |
4572 | }, | |
4573 | { | |
4574 | .data = &volume_driver_data, | |
4575 | }, | |
4576 | { | |
4577 | .init = fan_init, | |
4578 | .data = &fan_driver_data, | |
4579 | }, | |
4580 | }; | |
4581 | ||
3945ac36 | 4582 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
4583 | { |
4584 | unsigned int i; | |
a5763f22 | 4585 | struct ibm_struct *ibm; |
1da177e4 | 4586 | |
a5763f22 HMH |
4587 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
4588 | ibm = ibms_init[i].data; | |
4589 | BUG_ON(ibm == NULL); | |
4590 | ||
4591 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
4592 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 4593 | return -ENOSPC; |
a5763f22 HMH |
4594 | strcpy(ibms_init[i].param, val); |
4595 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
4596 | return 0; |
4597 | } | |
a5763f22 | 4598 | } |
1da177e4 | 4599 | |
1da177e4 LT |
4600 | return -EINVAL; |
4601 | } | |
4602 | ||
56b6aeb0 HMH |
4603 | static int experimental; |
4604 | module_param(experimental, int, 0); | |
4605 | ||
132ce091 HMH |
4606 | static u32 dbg_level; |
4607 | module_param_named(debug, dbg_level, uint, 0); | |
4608 | ||
0dcef77c | 4609 | static int force_load; |
86cc9445 | 4610 | module_param(force_load, bool, 0); |
0dcef77c | 4611 | |
ecf2a80a | 4612 | static int fan_control_allowed; |
86cc9445 | 4613 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
ecf2a80a | 4614 | |
24d3b774 HMH |
4615 | static int brightness_mode; |
4616 | module_param_named(brightness_mode, brightness_mode, int, 0); | |
4617 | ||
1da177e4 LT |
4618 | #define IBM_PARAM(feature) \ |
4619 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
4620 | ||
78f81cc4 BD |
4621 | IBM_PARAM(hotkey); |
4622 | IBM_PARAM(bluetooth); | |
4623 | IBM_PARAM(video); | |
4624 | IBM_PARAM(light); | |
85998248 | 4625 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
78f81cc4 | 4626 | IBM_PARAM(dock); |
63e5f248 | 4627 | #endif |
85998248 | 4628 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
78f81cc4 | 4629 | IBM_PARAM(bay); |
85998248 | 4630 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
78f81cc4 BD |
4631 | IBM_PARAM(cmos); |
4632 | IBM_PARAM(led); | |
4633 | IBM_PARAM(beep); | |
4634 | IBM_PARAM(ecdump); | |
4635 | IBM_PARAM(brightness); | |
4636 | IBM_PARAM(volume); | |
4637 | IBM_PARAM(fan); | |
4638 | ||
1def7115 | 4639 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
4640 | { |
4641 | int ret, i; | |
4642 | ||
54ae1501 | 4643 | /* Driver-level probe */ |
d5a2f2f1 HMH |
4644 | |
4645 | get_thinkpad_model_data(&thinkpad_id); | |
5fba344c | 4646 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
4647 | if (ret) { |
4648 | thinkpad_acpi_module_exit(); | |
5fba344c | 4649 | return ret; |
d5a2f2f1 | 4650 | } |
1da177e4 | 4651 | |
54ae1501 | 4652 | /* Driver initialization */ |
d5a2f2f1 | 4653 | |
8d376cd6 HMH |
4654 | IBM_ACPIHANDLE_INIT(ecrd); |
4655 | IBM_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 4656 | |
8d376cd6 | 4657 | proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir); |
1da177e4 | 4658 | if (!proc_dir) { |
8d376cd6 | 4659 | printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR); |
1def7115 | 4660 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
4661 | return -ENODEV; |
4662 | } | |
4663 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 | 4664 | |
54ae1501 HMH |
4665 | ret = platform_driver_register(&tpacpi_pdriver); |
4666 | if (ret) { | |
4667 | printk(IBM_ERR "unable to register platform driver\n"); | |
4668 | thinkpad_acpi_module_exit(); | |
4669 | return ret; | |
4670 | } | |
176750d6 HMH |
4671 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
4672 | if (ret) { | |
4673 | printk(IBM_ERR "unable to create sysfs driver attributes\n"); | |
4674 | thinkpad_acpi_module_exit(); | |
4675 | return ret; | |
4676 | } | |
4677 | ||
54ae1501 HMH |
4678 | |
4679 | /* Device initialization */ | |
4680 | tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1, | |
4681 | NULL, 0); | |
4682 | if (IS_ERR(tpacpi_pdev)) { | |
4683 | ret = PTR_ERR(tpacpi_pdev); | |
4684 | tpacpi_pdev = NULL; | |
4685 | printk(IBM_ERR "unable to register platform device\n"); | |
4686 | thinkpad_acpi_module_exit(); | |
4687 | return ret; | |
4688 | } | |
4689 | tpacpi_hwmon = hwmon_device_register(&tpacpi_pdev->dev); | |
4690 | if (IS_ERR(tpacpi_hwmon)) { | |
4691 | ret = PTR_ERR(tpacpi_hwmon); | |
4692 | tpacpi_hwmon = NULL; | |
4693 | printk(IBM_ERR "unable to register hwmon device\n"); | |
4694 | thinkpad_acpi_module_exit(); | |
4695 | return ret; | |
4696 | } | |
7f5d1cd6 HMH |
4697 | tpacpi_inputdev = input_allocate_device(); |
4698 | if (!tpacpi_inputdev) { | |
4699 | printk(IBM_ERR "unable to allocate input device\n"); | |
4700 | thinkpad_acpi_module_exit(); | |
4701 | return -ENOMEM; | |
4702 | } else { | |
4703 | /* Prepare input device, but don't register */ | |
4704 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
4705 | tpacpi_inputdev->phys = IBM_DRVR_NAME "/input0"; | |
4706 | tpacpi_inputdev->id.bustype = BUS_HOST; | |
edf0e0e5 HMH |
4707 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
4708 | thinkpad_id.vendor : | |
4709 | PCI_VENDOR_ID_IBM; | |
7f5d1cd6 HMH |
4710 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
4711 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
4712 | } | |
a5763f22 HMH |
4713 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
4714 | ret = ibm_init(&ibms_init[i]); | |
4715 | if (ret >= 0 && *ibms_init[i].param) | |
4716 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 4717 | if (ret < 0) { |
1def7115 | 4718 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
4719 | return ret; |
4720 | } | |
4721 | } | |
7f5d1cd6 HMH |
4722 | ret = input_register_device(tpacpi_inputdev); |
4723 | if (ret < 0) { | |
4724 | printk(IBM_ERR "unable to register input device\n"); | |
4725 | thinkpad_acpi_module_exit(); | |
4726 | return ret; | |
4727 | } else { | |
4728 | tp_features.input_device_registered = 1; | |
4729 | } | |
1da177e4 LT |
4730 | |
4731 | return 0; | |
4732 | } | |
4733 | ||
1def7115 | 4734 | static void thinkpad_acpi_module_exit(void) |
56b6aeb0 | 4735 | { |
a5763f22 HMH |
4736 | struct ibm_struct *ibm, *itmp; |
4737 | ||
4738 | list_for_each_entry_safe_reverse(ibm, itmp, | |
4739 | &tpacpi_all_drivers, | |
4740 | all_drivers) { | |
4741 | ibm_exit(ibm); | |
4742 | } | |
56b6aeb0 | 4743 | |
a5763f22 | 4744 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); |
56b6aeb0 | 4745 | |
7f5d1cd6 HMH |
4746 | if (tpacpi_inputdev) { |
4747 | if (tp_features.input_device_registered) | |
4748 | input_unregister_device(tpacpi_inputdev); | |
4749 | else | |
4750 | input_free_device(tpacpi_inputdev); | |
4751 | } | |
4752 | ||
54ae1501 HMH |
4753 | if (tpacpi_hwmon) |
4754 | hwmon_device_unregister(tpacpi_hwmon); | |
4755 | ||
4756 | if (tpacpi_pdev) | |
4757 | platform_device_unregister(tpacpi_pdev); | |
4758 | ||
176750d6 | 4759 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); |
54ae1501 HMH |
4760 | platform_driver_unregister(&tpacpi_pdriver); |
4761 | ||
56b6aeb0 | 4762 | if (proc_dir) |
8d376cd6 | 4763 | remove_proc_entry(IBM_PROC_DIR, acpi_root_dir); |
56b6aeb0 | 4764 | |
d5a2f2f1 HMH |
4765 | kfree(thinkpad_id.bios_version_str); |
4766 | kfree(thinkpad_id.ec_version_str); | |
4767 | kfree(thinkpad_id.model_str); | |
56b6aeb0 HMH |
4768 | } |
4769 | ||
1def7115 HMH |
4770 | module_init(thinkpad_acpi_module_init); |
4771 | module_exit(thinkpad_acpi_module_exit); |