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