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1da177e4 LT |
1 | /* |
2 | * ibm_acpi.c - IBM ThinkPad ACPI Extras | |
3 | * | |
4 | * | |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
f9ff43a6 | 6 | * Copyright (C) 2006 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 | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
78f81cc4 BD |
21 | */ |
22 | ||
f9ff43a6 | 23 | #define IBM_VERSION "0.13" |
78f81cc4 BD |
24 | |
25 | /* | |
1da177e4 | 26 | * Changelog: |
f9ff43a6 HMH |
27 | * |
28 | * 2006-11-22 0.13 new maintainer | |
29 | * changelog now lives in git commit history, and will | |
30 | * not be updated further in-file. | |
837ca6dd | 31 | * |
78f81cc4 BD |
32 | * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels |
33 | * 2005-03-17 0.11 support for 600e, 770x | |
34 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
35 | * support for 770e, G41 | |
36 | * G40 and G41 don't have a thinklight | |
37 | * temperatures no longer experimental | |
38 | * experimental brightness control | |
39 | * experimental volume control | |
40 | * experimental fan enable/disable | |
837ca6dd | 41 | * 2005-01-16 0.10 fix module loading on R30, R31 |
78f81cc4 BD |
42 | * 2005-01-16 0.9 support for 570, R30, R31 |
43 | * ultrabay support on A22p, A3x | |
44 | * limit arg for cmos, led, beep, drop experimental status | |
45 | * more capable led control on A21e, A22p, T20-22, X20 | |
46 | * experimental temperatures and fan speed | |
47 | * experimental embedded controller register dump | |
48 | * mark more functions as __init, drop incorrect __exit | |
49 | * use MODULE_VERSION | |
50 | * thanks to Henrik Brix Andersen <brix@gentoo.org> | |
51 | * fix parameter passing on module loading | |
52 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
53 | * thanks to Jim Radford <radford@blackbean.org> | |
54 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
55 | * thanks to Chris Wright <chrisw@osdl.org> | |
56 | * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20 | |
57 | * fix led control on A21e | |
58 | * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device | |
1da177e4 LT |
59 | * 2004-10-18 0.5 thinklight support on A21e, G40, R32, T20, T21, X20 |
60 | * proc file format changed | |
61 | * video_switch command | |
62 | * experimental cmos control | |
63 | * experimental led control | |
64 | * experimental acpi sounds | |
78f81cc4 BD |
65 | * 2004-09-16 0.4 support for module parameters |
66 | * hotkey mask can be prefixed by 0x | |
67 | * video output switching | |
68 | * video expansion control | |
69 | * ultrabay eject support | |
70 | * removed lcd brightness/on/off control, didn't work | |
71 | * 2004-08-17 0.3 support for R40 | |
72 | * lcd off, brightness control | |
73 | * thinklight on/off | |
74 | * 2004-08-14 0.2 support for T series, X20 | |
75 | * bluetooth enable/disable | |
76 | * hotkey events disabled by default | |
77 | * removed fan control, currently useless | |
78 | * 2004-08-09 0.1 initial release, support for X series | |
1da177e4 LT |
79 | */ |
80 | ||
1406cdd1 | 81 | #include "ibm_acpi.h" |
1da177e4 | 82 | |
f9ff43a6 | 83 | MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); |
78f81cc4 BD |
84 | MODULE_DESCRIPTION(IBM_DESC); |
85 | MODULE_VERSION(IBM_VERSION); | |
86 | MODULE_LICENSE("GPL"); | |
87 | ||
1da177e4 LT |
88 | #define __unused __attribute__ ((unused)) |
89 | ||
90 | static int experimental; | |
91 | module_param(experimental, int, 0); | |
92 | ||
93 | static acpi_handle root_handle = NULL; | |
94 | ||
95 | #define IBM_HANDLE(object, parent, paths...) \ | |
96 | static acpi_handle object##_handle; \ | |
97 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 98 | static char *object##_path; \ |
1da177e4 LT |
99 | static char *object##_paths[] = { paths } |
100 | ||
78f81cc4 BD |
101 | IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
102 | "\\_SB.PCI.ISA.EC", /* 570 */ | |
103 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
104 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
105 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
106 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
107 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
108 | ); | |
109 | ||
110 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ | |
111 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
112 | "\\_SB.PCI0.VID0", /* 770e */ | |
113 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
114 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
115 | ); /* R30, R31 */ | |
116 | ||
117 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
118 | ||
119 | IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ | |
120 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ | |
121 | "\\CMS", /* R40, R40e */ | |
122 | ); /* all others */ | |
63e5f248 | 123 | #ifdef CONFIG_ACPI_IBM_DOCK |
78f81cc4 BD |
124 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
125 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
126 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
127 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
128 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
63e5f248 | 129 | #endif |
2bc808a8 | 130 | #ifdef CONFIG_ACPI_IBM_BAY |
78f81cc4 BD |
131 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
132 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
837ca6dd | 133 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ |
78f81cc4 BD |
134 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ |
135 | ); /* A21e, R30, R31 */ | |
136 | ||
137 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
138 | "_EJ0", /* all others */ | |
139 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
140 | ||
141 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
142 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
143 | ); /* all others */ | |
144 | ||
145 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
146 | "_EJ0", /* 770x */ | |
147 | ); /* all others */ | |
2bc808a8 | 148 | #endif /* CONFIG_ACPI_IBM_BAY */ |
78f81cc4 BD |
149 | |
150 | /* don't list other alternatives as we install a notify handler on the 570 */ | |
151 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
152 | ||
153 | IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ | |
154 | "^HKEY", /* R30, R31 */ | |
155 | "HKEY", /* all others */ | |
156 | ); /* 570 */ | |
157 | ||
158 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ | |
159 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
160 | ||
161 | IBM_HANDLE(led, ec, "SLED", /* 570 */ | |
162 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
163 | "LED", /* all others */ | |
164 | ); /* R30, R31 */ | |
165 | ||
166 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
167 | IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ | |
168 | IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
a8b7a662 | 169 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
78f81cc4 BD |
170 | |
171 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
172 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
173 | ); /* all others */ | |
174 | ||
175 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
176 | "JFNS", /* 770x-JL */ | |
177 | ); /* all others */ | |
178 | ||
a8b7a662 HMH |
179 | /* |
180 | * FAN ACCESS MODES | |
181 | * | |
182 | * IBMACPI_FAN_RD_ACPI_GFAN: | |
183 | * ACPI GFAN method: returns fan level | |
184 | * | |
185 | * see IBMACPI_FAN_WR_ACPI_SFAN | |
186 | * EC 0x2f not available if GFAN exists | |
187 | * | |
188 | * IBMACPI_FAN_WR_ACPI_SFAN: | |
189 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) | |
190 | * | |
191 | * EC 0x2f might be available *for reading*, but never for writing. | |
192 | * | |
193 | * IBMACPI_FAN_WR_TPEC: | |
194 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode Supported | |
195 | * on almost all ThinkPads | |
196 | * | |
197 | * Fan speed changes of any sort (including those caused by the | |
198 | * disengaged mode) are usually done slowly by the firmware as the | |
199 | * maximum ammount of fan duty cycle change per second seems to be | |
200 | * limited. | |
201 | * | |
202 | * Reading is not available if GFAN exists. | |
203 | * Writing is not available if SFAN exists. | |
204 | * | |
205 | * Bits | |
206 | * 7 automatic mode engaged; | |
207 | * (default operation mode of the ThinkPad) | |
208 | * fan level is ignored in this mode. | |
209 | * 6 disengage mode (takes precedence over bit 7); | |
210 | * not available on all thinkpads. May disable | |
211 | * the tachometer, and speeds up fan to 100% duty-cycle, | |
212 | * which speeds it up far above the standard RPM | |
213 | * levels. It is not impossible that it could cause | |
214 | * hardware damage. | |
215 | * 5-3 unused in some models. Extra bits for fan level | |
216 | * in others, but still useless as all values above | |
217 | * 7 map to the same speed as level 7 in these models. | |
218 | * 2-0 fan level (0..7 usually) | |
219 | * 0x00 = stop | |
220 | * 0x07 = max (set when temperatures critical) | |
221 | * Some ThinkPads may have other levels, see | |
222 | * IBMACPI_FAN_WR_ACPI_FANS (X31/X40/X41) | |
223 | * | |
224 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
225 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
226 | * does so, its initial value is meaningless (0x07). | |
227 | * | |
228 | * For firmware bugs, refer to: | |
229 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
230 | * | |
231 | * ---- | |
232 | * | |
233 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
234 | * Main fan tachometer reading (in RPM) | |
235 | * | |
236 | * This register is present on all ThinkPads with a new-style EC, and | |
237 | * it is known not to be present on the A21m/e, and T22, as there is | |
238 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
239 | * ThinkPads from this same time period (and earlier) probably lack the | |
240 | * tachometer as well. | |
241 | * | |
242 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
243 | * was never fixed by IBM to report the EC firmware version string | |
244 | * probably support the tachometer (like the early X models), so | |
245 | * detecting it is quite hard. We need more data to know for sure. | |
246 | * | |
247 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
248 | * might result. | |
249 | * | |
250 | * FIRMWARE BUG: when EC 0x2f bit 6 is set (disengaged mode), this | |
251 | * register is not invalidated in ThinkPads that disable tachometer | |
252 | * readings. Thus, the tachometer readings go stale. | |
253 | * | |
254 | * For firmware bugs, refer to: | |
255 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
256 | * | |
257 | * IBMACPI_FAN_WR_ACPI_FANS: | |
258 | * ThinkPad X31, X40, X41. Not available in the X60. | |
259 | * | |
260 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
261 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
262 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
263 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
264 | * | |
265 | * The speeds are stored on handles | |
266 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
267 | * | |
268 | * There are three default speed sets, acessible as handles: | |
269 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
270 | * | |
271 | * ACPI DSDT switches which set is in use depending on various | |
272 | * factors. | |
273 | * | |
274 | * IBMACPI_FAN_WR_TPEC is also available and should be used to | |
275 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, | |
276 | * but the ACPI tables just mention level 7. | |
277 | */ | |
278 | ||
778b4d74 | 279 | static char *ibm_thinkpad_ec_found = NULL; |
60eb0b35 | 280 | |
1da177e4 LT |
281 | static struct proc_dir_entry *proc_dir = NULL; |
282 | ||
fb87a811 | 283 | static struct backlight_device *ibm_backlight_device = NULL; |
8acb0250 | 284 | |
1da177e4 LT |
285 | static int acpi_evalf(acpi_handle handle, |
286 | void *res, char *method, char *fmt, ...) | |
287 | { | |
288 | char *fmt0 = fmt; | |
78f81cc4 BD |
289 | struct acpi_object_list params; |
290 | union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; | |
291 | struct acpi_buffer result, *resultp; | |
292 | union acpi_object out_obj; | |
293 | acpi_status status; | |
294 | va_list ap; | |
295 | char res_type; | |
296 | int success; | |
297 | int quiet; | |
1da177e4 LT |
298 | |
299 | if (!*fmt) { | |
300 | printk(IBM_ERR "acpi_evalf() called with empty format\n"); | |
301 | return 0; | |
302 | } | |
303 | ||
304 | if (*fmt == 'q') { | |
305 | quiet = 1; | |
306 | fmt++; | |
307 | } else | |
308 | quiet = 0; | |
309 | ||
310 | res_type = *(fmt++); | |
311 | ||
312 | params.count = 0; | |
313 | params.pointer = &in_objs[0]; | |
314 | ||
315 | va_start(ap, fmt); | |
316 | while (*fmt) { | |
317 | char c = *(fmt++); | |
318 | switch (c) { | |
319 | case 'd': /* int */ | |
320 | in_objs[params.count].integer.value = va_arg(ap, int); | |
321 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
322 | break; | |
78f81cc4 | 323 | /* add more types as needed */ |
1da177e4 LT |
324 | default: |
325 | printk(IBM_ERR "acpi_evalf() called " | |
326 | "with invalid format character '%c'\n", c); | |
327 | return 0; | |
328 | } | |
329 | } | |
330 | va_end(ap); | |
331 | ||
78f81cc4 BD |
332 | if (res_type != 'v') { |
333 | result.length = sizeof(out_obj); | |
334 | result.pointer = &out_obj; | |
335 | resultp = &result; | |
336 | } else | |
337 | resultp = NULL; | |
1da177e4 | 338 | |
78f81cc4 | 339 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
340 | |
341 | switch (res_type) { | |
78f81cc4 | 342 | case 'd': /* int */ |
1da177e4 LT |
343 | if (res) |
344 | *(int *)res = out_obj.integer.value; | |
345 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
346 | break; | |
78f81cc4 | 347 | case 'v': /* void */ |
1da177e4 LT |
348 | success = status == AE_OK; |
349 | break; | |
78f81cc4 | 350 | /* add more types as needed */ |
1da177e4 LT |
351 | default: |
352 | printk(IBM_ERR "acpi_evalf() called " | |
353 | "with invalid format character '%c'\n", res_type); | |
354 | return 0; | |
355 | } | |
356 | ||
357 | if (!success && !quiet) | |
358 | printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", | |
359 | method, fmt0, status); | |
360 | ||
361 | return success; | |
362 | } | |
363 | ||
364 | static void __unused acpi_print_int(acpi_handle handle, char *method) | |
365 | { | |
366 | int i; | |
367 | ||
368 | if (acpi_evalf(handle, &i, method, "d")) | |
369 | printk(IBM_INFO "%s = 0x%x\n", method, i); | |
370 | else | |
371 | printk(IBM_ERR "error calling %s\n", method); | |
372 | } | |
373 | ||
374 | static char *next_cmd(char **cmds) | |
375 | { | |
376 | char *start = *cmds; | |
377 | char *end; | |
378 | ||
379 | while ((end = strchr(start, ',')) && end == start) | |
380 | start = end + 1; | |
381 | ||
382 | if (!end) | |
383 | return NULL; | |
384 | ||
385 | *end = 0; | |
386 | *cmds = end + 1; | |
387 | return start; | |
388 | } | |
389 | ||
1f21782e | 390 | static int ibm_acpi_driver_init(void) |
1da177e4 LT |
391 | { |
392 | printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); | |
393 | printk(IBM_INFO "%s\n", IBM_URL); | |
394 | ||
3945ac36 HMH |
395 | if (ibm_thinkpad_ec_found) |
396 | printk(IBM_INFO "ThinkPad EC firmware %s\n", | |
397 | ibm_thinkpad_ec_found); | |
398 | ||
1da177e4 LT |
399 | return 0; |
400 | } | |
401 | ||
e062e034 | 402 | static int ibm_acpi_driver_read(char *p) |
1da177e4 LT |
403 | { |
404 | int len = 0; | |
405 | ||
406 | len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); | |
407 | len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); | |
408 | ||
409 | return len; | |
410 | } | |
411 | ||
78f81cc4 BD |
412 | static int hotkey_supported; |
413 | static int hotkey_mask_supported; | |
414 | static int hotkey_orig_status; | |
415 | static int hotkey_orig_mask; | |
416 | ||
417 | static int hotkey_get(int *status, int *mask) | |
1da177e4 LT |
418 | { |
419 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
78f81cc4 BD |
420 | return 0; |
421 | ||
422 | if (hotkey_mask_supported) | |
423 | if (!acpi_evalf(hkey_handle, mask, "DHKN", "d")) | |
424 | return 0; | |
425 | ||
426 | return 1; | |
1da177e4 LT |
427 | } |
428 | ||
78f81cc4 | 429 | static int hotkey_set(int status, int mask) |
1da177e4 LT |
430 | { |
431 | int i; | |
432 | ||
433 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1da177e4 LT |
434 | return 0; |
435 | ||
78f81cc4 BD |
436 | if (hotkey_mask_supported) |
437 | for (i = 0; i < 32; i++) { | |
438 | int bit = ((1 << i) & mask) != 0; | |
439 | if (!acpi_evalf(hkey_handle, | |
440 | NULL, "MHKM", "vdd", i + 1, bit)) | |
441 | return 0; | |
442 | } | |
1da177e4 | 443 | |
78f81cc4 | 444 | return 1; |
1da177e4 LT |
445 | } |
446 | ||
78f81cc4 | 447 | static int hotkey_init(void) |
1da177e4 | 448 | { |
78f81cc4 BD |
449 | /* hotkey not supported on 570 */ |
450 | hotkey_supported = hkey_handle != NULL; | |
1da177e4 | 451 | |
78f81cc4 BD |
452 | if (hotkey_supported) { |
453 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, | |
454 | A30, R30, R31, T20-22, X20-21, X22-24 */ | |
455 | hotkey_mask_supported = | |
456 | acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); | |
457 | ||
458 | if (!hotkey_get(&hotkey_orig_status, &hotkey_orig_mask)) | |
459 | return -ENODEV; | |
1da177e4 LT |
460 | } |
461 | ||
78f81cc4 BD |
462 | return 0; |
463 | } | |
1da177e4 | 464 | |
78f81cc4 | 465 | static int hotkey_read(char *p) |
1da177e4 LT |
466 | { |
467 | int status, mask; | |
468 | int len = 0; | |
469 | ||
78f81cc4 BD |
470 | if (!hotkey_supported) { |
471 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
472 | return len; | |
473 | } | |
474 | ||
475 | if (!hotkey_get(&status, &mask)) | |
1da177e4 LT |
476 | return -EIO; |
477 | ||
478 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
78f81cc4 | 479 | if (hotkey_mask_supported) { |
1da177e4 LT |
480 | len += sprintf(p + len, "mask:\t\t0x%04x\n", mask); |
481 | len += sprintf(p + len, | |
482 | "commands:\tenable, disable, reset, <mask>\n"); | |
483 | } else { | |
484 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
485 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
486 | } | |
487 | ||
488 | return len; | |
489 | } | |
490 | ||
78f81cc4 | 491 | static int hotkey_write(char *buf) |
1da177e4 LT |
492 | { |
493 | int status, mask; | |
494 | char *cmd; | |
495 | int do_cmd = 0; | |
496 | ||
78f81cc4 | 497 | if (!hotkey_supported) |
1da177e4 LT |
498 | return -ENODEV; |
499 | ||
78f81cc4 BD |
500 | if (!hotkey_get(&status, &mask)) |
501 | return -EIO; | |
502 | ||
1da177e4 LT |
503 | while ((cmd = next_cmd(&buf))) { |
504 | if (strlencmp(cmd, "enable") == 0) { | |
505 | status = 1; | |
506 | } else if (strlencmp(cmd, "disable") == 0) { | |
507 | status = 0; | |
508 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
509 | status = hotkey_orig_status; |
510 | mask = hotkey_orig_mask; | |
1da177e4 LT |
511 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
512 | /* mask set */ | |
513 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
514 | /* mask set */ | |
515 | } else | |
516 | return -EINVAL; | |
517 | do_cmd = 1; | |
518 | } | |
519 | ||
78f81cc4 | 520 | if (do_cmd && !hotkey_set(status, mask)) |
1da177e4 LT |
521 | return -EIO; |
522 | ||
523 | return 0; | |
78f81cc4 | 524 | } |
1da177e4 | 525 | |
78f81cc4 | 526 | static void hotkey_exit(void) |
1da177e4 | 527 | { |
78f81cc4 BD |
528 | if (hotkey_supported) |
529 | hotkey_set(hotkey_orig_status, hotkey_orig_mask); | |
1da177e4 LT |
530 | } |
531 | ||
532 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
533 | { | |
534 | int hkey; | |
535 | ||
536 | if (acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) | |
537 | acpi_bus_generate_event(ibm->device, event, hkey); | |
538 | else { | |
539 | printk(IBM_ERR "unknown hotkey event %d\n", event); | |
540 | acpi_bus_generate_event(ibm->device, event, 0); | |
78f81cc4 | 541 | } |
1da177e4 LT |
542 | } |
543 | ||
78f81cc4 BD |
544 | static int bluetooth_supported; |
545 | ||
546 | static int bluetooth_init(void) | |
1da177e4 | 547 | { |
78f81cc4 BD |
548 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
549 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
550 | bluetooth_supported = hkey_handle && | |
551 | acpi_evalf(hkey_handle, NULL, "GBDC", "qv"); | |
1da177e4 LT |
552 | |
553 | return 0; | |
554 | } | |
555 | ||
78f81cc4 | 556 | static int bluetooth_status(void) |
1da177e4 LT |
557 | { |
558 | int status; | |
559 | ||
78f81cc4 BD |
560 | if (!bluetooth_supported || |
561 | !acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
1da177e4 LT |
562 | status = 0; |
563 | ||
564 | return status; | |
565 | } | |
566 | ||
78f81cc4 | 567 | static int bluetooth_read(char *p) |
1da177e4 LT |
568 | { |
569 | int len = 0; | |
78f81cc4 | 570 | int status = bluetooth_status(); |
1da177e4 | 571 | |
78f81cc4 | 572 | if (!bluetooth_supported) |
1da177e4 LT |
573 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
574 | else if (!(status & 1)) | |
575 | len += sprintf(p + len, "status:\t\tnot installed\n"); | |
576 | else { | |
577 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 1)); | |
578 | len += sprintf(p + len, "commands:\tenable, disable\n"); | |
579 | } | |
580 | ||
581 | return len; | |
582 | } | |
583 | ||
78f81cc4 | 584 | static int bluetooth_write(char *buf) |
1da177e4 | 585 | { |
78f81cc4 | 586 | int status = bluetooth_status(); |
1da177e4 LT |
587 | char *cmd; |
588 | int do_cmd = 0; | |
589 | ||
78f81cc4 BD |
590 | if (!bluetooth_supported) |
591 | return -ENODEV; | |
1da177e4 LT |
592 | |
593 | while ((cmd = next_cmd(&buf))) { | |
594 | if (strlencmp(cmd, "enable") == 0) { | |
595 | status |= 2; | |
596 | } else if (strlencmp(cmd, "disable") == 0) { | |
597 | status &= ~2; | |
598 | } else | |
599 | return -EINVAL; | |
600 | do_cmd = 1; | |
601 | } | |
602 | ||
603 | if (do_cmd && !acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
78f81cc4 | 604 | return -EIO; |
1da177e4 LT |
605 | |
606 | return 0; | |
607 | } | |
608 | ||
42adb53c JF |
609 | static int wan_supported; |
610 | ||
611 | static int wan_init(void) | |
612 | { | |
613 | wan_supported = hkey_handle && | |
614 | acpi_evalf(hkey_handle, NULL, "GWAN", "qv"); | |
615 | ||
616 | return 0; | |
617 | } | |
618 | ||
619 | static int wan_status(void) | |
620 | { | |
621 | int status; | |
622 | ||
8d297264 | 623 | if (!wan_supported || !acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
42adb53c JF |
624 | status = 0; |
625 | ||
626 | return status; | |
627 | } | |
628 | ||
629 | static int wan_read(char *p) | |
630 | { | |
631 | int len = 0; | |
632 | int status = wan_status(); | |
633 | ||
634 | if (!wan_supported) | |
635 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
636 | else if (!(status & 1)) | |
637 | len += sprintf(p + len, "status:\t\tnot installed\n"); | |
638 | else { | |
639 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 1)); | |
640 | len += sprintf(p + len, "commands:\tenable, disable\n"); | |
641 | } | |
642 | ||
643 | return len; | |
644 | } | |
645 | ||
646 | static int wan_write(char *buf) | |
647 | { | |
648 | int status = wan_status(); | |
649 | char *cmd; | |
650 | int do_cmd = 0; | |
651 | ||
652 | if (!wan_supported) | |
653 | return -ENODEV; | |
654 | ||
655 | while ((cmd = next_cmd(&buf))) { | |
656 | if (strlencmp(cmd, "enable") == 0) { | |
657 | status |= 2; | |
658 | } else if (strlencmp(cmd, "disable") == 0) { | |
659 | status &= ~2; | |
660 | } else | |
661 | return -EINVAL; | |
662 | do_cmd = 1; | |
663 | } | |
664 | ||
665 | if (do_cmd && !acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
666 | return -EIO; | |
667 | ||
668 | return 0; | |
669 | } | |
670 | ||
9a8e1738 HMH |
671 | static enum video_access_mode video_supported; |
672 | static int video_orig_autosw; | |
78f81cc4 BD |
673 | |
674 | static int video_init(void) | |
1da177e4 | 675 | { |
78f81cc4 BD |
676 | int ivga; |
677 | ||
678 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) | |
679 | /* G41, assume IVGA doesn't change */ | |
680 | vid_handle = vid2_handle; | |
681 | ||
682 | if (!vid_handle) | |
683 | /* video switching not supported on R30, R31 */ | |
9a8e1738 | 684 | video_supported = IBMACPI_VIDEO_NONE; |
78f81cc4 BD |
685 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
686 | /* 570 */ | |
9a8e1738 | 687 | video_supported = IBMACPI_VIDEO_570; |
78f81cc4 BD |
688 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
689 | /* 600e/x, 770e, 770x */ | |
9a8e1738 | 690 | video_supported = IBMACPI_VIDEO_770; |
78f81cc4 BD |
691 | else |
692 | /* all others */ | |
9a8e1738 | 693 | video_supported = IBMACPI_VIDEO_NEW; |
1da177e4 LT |
694 | |
695 | return 0; | |
696 | } | |
697 | ||
78f81cc4 | 698 | static int video_status(void) |
1da177e4 LT |
699 | { |
700 | int status = 0; | |
701 | int i; | |
702 | ||
9a8e1738 | 703 | if (video_supported == IBMACPI_VIDEO_570) { |
78f81cc4 BD |
704 | if (acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", 0x87)) |
705 | status = i & 3; | |
9a8e1738 | 706 | } else if (video_supported == IBMACPI_VIDEO_770) { |
78f81cc4 BD |
707 | if (acpi_evalf(NULL, &i, "\\VCDL", "d")) |
708 | status |= 0x01 * i; | |
709 | if (acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
710 | status |= 0x02 * i; | |
9a8e1738 | 711 | } else if (video_supported == IBMACPI_VIDEO_NEW) { |
78f81cc4 BD |
712 | acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1); |
713 | if (acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
714 | status |= 0x02 * i; | |
715 | ||
716 | acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0); | |
717 | if (acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
718 | status |= 0x01 * i; | |
719 | if (acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
720 | status |= 0x08 * i; | |
721 | } | |
722 | ||
723 | return status; | |
724 | } | |
1da177e4 | 725 | |
78f81cc4 BD |
726 | static int video_autosw(void) |
727 | { | |
728 | int autosw = 0; | |
1da177e4 | 729 | |
9a8e1738 | 730 | if (video_supported == IBMACPI_VIDEO_570) |
78f81cc4 | 731 | acpi_evalf(vid_handle, &autosw, "SWIT", "d"); |
9a8e1738 HMH |
732 | else if (video_supported == IBMACPI_VIDEO_770 || |
733 | video_supported == IBMACPI_VIDEO_NEW) | |
78f81cc4 | 734 | acpi_evalf(vid_handle, &autosw, "^VDEE", "d"); |
1da177e4 | 735 | |
78f81cc4 | 736 | return autosw & 1; |
1da177e4 LT |
737 | } |
738 | ||
78f81cc4 | 739 | static int video_read(char *p) |
1da177e4 | 740 | { |
78f81cc4 BD |
741 | int status = video_status(); |
742 | int autosw = video_autosw(); | |
1da177e4 LT |
743 | int len = 0; |
744 | ||
78f81cc4 BD |
745 | if (!video_supported) { |
746 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
747 | return len; | |
748 | } | |
749 | ||
750 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
1da177e4 LT |
751 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); |
752 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
9a8e1738 | 753 | if (video_supported == IBMACPI_VIDEO_NEW) |
78f81cc4 BD |
754 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
755 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
756 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
757 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
9a8e1738 | 758 | if (video_supported == IBMACPI_VIDEO_NEW) |
78f81cc4 BD |
759 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
760 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
1da177e4 LT |
761 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); |
762 | ||
763 | return len; | |
764 | } | |
765 | ||
78f81cc4 BD |
766 | static int video_switch(void) |
767 | { | |
768 | int autosw = video_autosw(); | |
769 | int ret; | |
770 | ||
771 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) | |
772 | return -EIO; | |
9a8e1738 | 773 | ret = video_supported == IBMACPI_VIDEO_570 ? |
78f81cc4 BD |
774 | acpi_evalf(ec_handle, NULL, "_Q16", "v") : |
775 | acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
776 | acpi_evalf(vid_handle, NULL, "_DOS", "vd", autosw); | |
777 | ||
778 | return ret; | |
779 | } | |
780 | ||
781 | static int video_expand(void) | |
782 | { | |
9a8e1738 | 783 | if (video_supported == IBMACPI_VIDEO_570) |
78f81cc4 | 784 | return acpi_evalf(ec_handle, NULL, "_Q17", "v"); |
9a8e1738 | 785 | else if (video_supported == IBMACPI_VIDEO_770) |
78f81cc4 BD |
786 | return acpi_evalf(vid_handle, NULL, "VEXP", "v"); |
787 | else | |
788 | return acpi_evalf(NULL, NULL, "\\VEXP", "v"); | |
789 | } | |
790 | ||
791 | static int video_switch2(int status) | |
792 | { | |
793 | int ret; | |
794 | ||
9a8e1738 | 795 | if (video_supported == IBMACPI_VIDEO_570) { |
78f81cc4 BD |
796 | ret = acpi_evalf(NULL, NULL, |
797 | "\\_SB.PHS2", "vdd", 0x8b, status | 0x80); | |
9a8e1738 | 798 | } else if (video_supported == IBMACPI_VIDEO_770) { |
78f81cc4 BD |
799 | int autosw = video_autosw(); |
800 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) | |
801 | return -EIO; | |
802 | ||
803 | ret = acpi_evalf(vid_handle, NULL, | |
804 | "ASWT", "vdd", status * 0x100, 0); | |
805 | ||
806 | acpi_evalf(vid_handle, NULL, "_DOS", "vd", autosw); | |
807 | } else { | |
808 | ret = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
809 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
810 | } | |
811 | ||
812 | return ret; | |
813 | } | |
814 | ||
815 | static int video_write(char *buf) | |
1da177e4 LT |
816 | { |
817 | char *cmd; | |
818 | int enable, disable, status; | |
819 | ||
78f81cc4 BD |
820 | if (!video_supported) |
821 | return -ENODEV; | |
822 | ||
1da177e4 LT |
823 | enable = disable = 0; |
824 | ||
825 | while ((cmd = next_cmd(&buf))) { | |
826 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
827 | enable |= 0x01; | |
828 | } else if (strlencmp(cmd, "lcd_disable") == 0) { | |
829 | disable |= 0x01; | |
830 | } else if (strlencmp(cmd, "crt_enable") == 0) { | |
831 | enable |= 0x02; | |
832 | } else if (strlencmp(cmd, "crt_disable") == 0) { | |
833 | disable |= 0x02; | |
9a8e1738 | 834 | } else if (video_supported == IBMACPI_VIDEO_NEW && |
78f81cc4 | 835 | strlencmp(cmd, "dvi_enable") == 0) { |
1da177e4 | 836 | enable |= 0x08; |
9a8e1738 | 837 | } else if (video_supported == IBMACPI_VIDEO_NEW && |
78f81cc4 | 838 | strlencmp(cmd, "dvi_disable") == 0) { |
1da177e4 LT |
839 | disable |= 0x08; |
840 | } else if (strlencmp(cmd, "auto_enable") == 0) { | |
841 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) | |
842 | return -EIO; | |
843 | } else if (strlencmp(cmd, "auto_disable") == 0) { | |
844 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 0)) | |
845 | return -EIO; | |
846 | } else if (strlencmp(cmd, "video_switch") == 0) { | |
78f81cc4 | 847 | if (!video_switch()) |
1da177e4 LT |
848 | return -EIO; |
849 | } else if (strlencmp(cmd, "expand_toggle") == 0) { | |
78f81cc4 | 850 | if (!video_expand()) |
1da177e4 LT |
851 | return -EIO; |
852 | } else | |
853 | return -EINVAL; | |
854 | } | |
855 | ||
856 | if (enable || disable) { | |
78f81cc4 BD |
857 | status = (video_status() & 0x0f & ~disable) | enable; |
858 | if (!video_switch2(status)) | |
1da177e4 LT |
859 | return -EIO; |
860 | } | |
861 | ||
862 | return 0; | |
863 | } | |
864 | ||
78f81cc4 | 865 | static void video_exit(void) |
1da177e4 | 866 | { |
78f81cc4 | 867 | acpi_evalf(vid_handle, NULL, "_DOS", "vd", video_orig_autosw); |
1da177e4 LT |
868 | } |
869 | ||
78f81cc4 BD |
870 | static int light_supported; |
871 | static int light_status_supported; | |
872 | ||
873 | static int light_init(void) | |
1da177e4 | 874 | { |
78f81cc4 BD |
875 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
876 | light_supported = (cmos_handle || lght_handle) && !ledb_handle; | |
877 | ||
878 | if (light_supported) | |
879 | /* light status not supported on | |
880 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
881 | light_status_supported = acpi_evalf(ec_handle, NULL, | |
882 | "KBLT", "qv"); | |
1da177e4 LT |
883 | |
884 | return 0; | |
885 | } | |
886 | ||
78f81cc4 | 887 | static int light_read(char *p) |
1da177e4 LT |
888 | { |
889 | int len = 0; | |
890 | int status = 0; | |
891 | ||
78f81cc4 BD |
892 | if (!light_supported) { |
893 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
894 | } else if (!light_status_supported) { | |
895 | len += sprintf(p + len, "status:\t\tunknown\n"); | |
896 | len += sprintf(p + len, "commands:\ton, off\n"); | |
897 | } else { | |
1da177e4 LT |
898 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
899 | return -EIO; | |
900 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
901 | len += sprintf(p + len, "commands:\ton, off\n"); |
902 | } | |
1da177e4 LT |
903 | |
904 | return len; | |
905 | } | |
906 | ||
78f81cc4 | 907 | static int light_write(char *buf) |
1da177e4 LT |
908 | { |
909 | int cmos_cmd, lght_cmd; | |
910 | char *cmd; | |
911 | int success; | |
78f81cc4 BD |
912 | |
913 | if (!light_supported) | |
914 | return -ENODEV; | |
915 | ||
1da177e4 LT |
916 | while ((cmd = next_cmd(&buf))) { |
917 | if (strlencmp(cmd, "on") == 0) { | |
918 | cmos_cmd = 0x0c; | |
919 | lght_cmd = 1; | |
920 | } else if (strlencmp(cmd, "off") == 0) { | |
921 | cmos_cmd = 0x0d; | |
922 | lght_cmd = 0; | |
923 | } else | |
924 | return -EINVAL; | |
78f81cc4 | 925 | |
1da177e4 | 926 | success = cmos_handle ? |
78f81cc4 BD |
927 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
928 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
929 | if (!success) |
930 | return -EIO; | |
931 | } | |
932 | ||
933 | return 0; | |
934 | } | |
935 | ||
2bc808a8 | 936 | #if defined(CONFIG_ACPI_IBM_DOCK) || defined(CONFIG_ACPI_IBM_BAY) |
1da177e4 LT |
937 | static int _sta(acpi_handle handle) |
938 | { | |
939 | int status; | |
940 | ||
941 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
942 | status = 0; | |
943 | ||
944 | return status; | |
945 | } | |
2bc808a8 | 946 | #endif |
d2fadbbb | 947 | |
63e5f248 | 948 | #ifdef CONFIG_ACPI_IBM_DOCK |
1da177e4 LT |
949 | #define dock_docked() (_sta(dock_handle) & 1) |
950 | ||
78f81cc4 | 951 | static int dock_read(char *p) |
1da177e4 LT |
952 | { |
953 | int len = 0; | |
954 | int docked = dock_docked(); | |
955 | ||
956 | if (!dock_handle) | |
957 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
958 | else if (!docked) | |
959 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
960 | else { | |
961 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
962 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
963 | } | |
964 | ||
965 | return len; | |
966 | } | |
967 | ||
78f81cc4 | 968 | static int dock_write(char *buf) |
1da177e4 LT |
969 | { |
970 | char *cmd; | |
971 | ||
972 | if (!dock_docked()) | |
78f81cc4 | 973 | return -ENODEV; |
1da177e4 LT |
974 | |
975 | while ((cmd = next_cmd(&buf))) { | |
976 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
977 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
978 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
1da177e4 LT |
979 | return -EIO; |
980 | } else if (strlencmp(cmd, "dock") == 0) { | |
981 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
982 | return -EIO; | |
983 | } else | |
984 | return -EINVAL; | |
985 | } | |
986 | ||
987 | return 0; | |
78f81cc4 | 988 | } |
1da177e4 LT |
989 | |
990 | static void dock_notify(struct ibm_struct *ibm, u32 event) | |
991 | { | |
992 | int docked = dock_docked(); | |
78f81cc4 BD |
993 | int pci = ibm->hid && strstr(ibm->hid, IBM_PCI_HID); |
994 | ||
995 | if (event == 1 && !pci) /* 570 */ | |
996 | acpi_bus_generate_event(ibm->device, event, 1); /* button */ | |
997 | else if (event == 1 && pci) /* 570 */ | |
998 | acpi_bus_generate_event(ibm->device, event, 3); /* dock */ | |
999 | else if (event == 3 && docked) | |
1000 | acpi_bus_generate_event(ibm->device, event, 1); /* button */ | |
1da177e4 | 1001 | else if (event == 3 && !docked) |
78f81cc4 | 1002 | acpi_bus_generate_event(ibm->device, event, 2); /* undock */ |
1da177e4 | 1003 | else if (event == 0 && docked) |
78f81cc4 | 1004 | acpi_bus_generate_event(ibm->device, event, 3); /* dock */ |
1da177e4 LT |
1005 | else { |
1006 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
1007 | event, _sta(dock_handle)); | |
78f81cc4 | 1008 | acpi_bus_generate_event(ibm->device, event, 0); /* unknown */ |
1da177e4 LT |
1009 | } |
1010 | } | |
63e5f248 | 1011 | #endif |
1da177e4 | 1012 | |
2bc808a8 | 1013 | #ifdef CONFIG_ACPI_IBM_BAY |
78f81cc4 BD |
1014 | static int bay_status_supported; |
1015 | static int bay_status2_supported; | |
1016 | static int bay_eject_supported; | |
1017 | static int bay_eject2_supported; | |
1da177e4 | 1018 | |
78f81cc4 | 1019 | static int bay_init(void) |
1da177e4 | 1020 | { |
78f81cc4 BD |
1021 | bay_status_supported = bay_handle && |
1022 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
1023 | bay_status2_supported = bay2_handle && | |
1024 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
1025 | ||
1026 | bay_eject_supported = bay_handle && bay_ej_handle && | |
1027 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
1028 | bay_eject2_supported = bay2_handle && bay2_ej_handle && | |
1029 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 LT |
1030 | |
1031 | return 0; | |
1032 | } | |
1033 | ||
78f81cc4 BD |
1034 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
1035 | ||
1036 | static int bay_read(char *p) | |
1da177e4 LT |
1037 | { |
1038 | int len = 0; | |
78f81cc4 BD |
1039 | int occupied = bay_occupied(bay); |
1040 | int occupied2 = bay_occupied(bay2); | |
1041 | int eject, eject2; | |
1042 | ||
1043 | len += sprintf(p + len, "status:\t\t%s\n", bay_status_supported ? | |
1044 | (occupied ? "occupied" : "unoccupied") : | |
1045 | "not supported"); | |
1046 | if (bay_status2_supported) | |
1047 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? | |
1048 | "occupied" : "unoccupied"); | |
1049 | ||
1050 | eject = bay_eject_supported && occupied; | |
1051 | eject2 = bay_eject2_supported && occupied2; | |
1052 | ||
1053 | if (eject && eject2) | |
1054 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
1055 | else if (eject) | |
1da177e4 | 1056 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
1057 | else if (eject2) |
1058 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
1059 | |
1060 | return len; | |
1061 | } | |
1062 | ||
78f81cc4 | 1063 | static int bay_write(char *buf) |
1da177e4 LT |
1064 | { |
1065 | char *cmd; | |
1066 | ||
78f81cc4 BD |
1067 | if (!bay_eject_supported && !bay_eject2_supported) |
1068 | return -ENODEV; | |
1069 | ||
1da177e4 | 1070 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 BD |
1071 | if (bay_eject_supported && strlencmp(cmd, "eject") == 0) { |
1072 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) | |
1073 | return -EIO; | |
1074 | } else if (bay_eject2_supported && | |
1075 | strlencmp(cmd, "eject2") == 0) { | |
1076 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
1077 | return -EIO; |
1078 | } else | |
1079 | return -EINVAL; | |
1080 | } | |
1081 | ||
1082 | return 0; | |
78f81cc4 | 1083 | } |
1da177e4 LT |
1084 | |
1085 | static void bay_notify(struct ibm_struct *ibm, u32 event) | |
1086 | { | |
1087 | acpi_bus_generate_event(ibm->device, event, 0); | |
1088 | } | |
2bc808a8 | 1089 | #endif /* CONFIG_ACPI_IBM_BAY */ |
1da177e4 | 1090 | |
78f81cc4 | 1091 | static int cmos_read(char *p) |
1da177e4 LT |
1092 | { |
1093 | int len = 0; | |
1094 | ||
78f81cc4 BD |
1095 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1096 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
1097 | if (!cmos_handle) |
1098 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1099 | else { | |
1100 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 1101 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
1102 | } |
1103 | ||
1104 | return len; | |
1105 | } | |
1106 | ||
78f81cc4 BD |
1107 | static int cmos_eval(int cmos_cmd) |
1108 | { | |
1109 | if (cmos_handle) | |
1110 | return acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd); | |
1111 | else | |
1112 | return 1; | |
1113 | } | |
1114 | ||
1115 | static int cmos_write(char *buf) | |
1da177e4 LT |
1116 | { |
1117 | char *cmd; | |
1118 | int cmos_cmd; | |
1119 | ||
1120 | if (!cmos_handle) | |
1121 | return -EINVAL; | |
1122 | ||
1123 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
1124 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
1125 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
1126 | /* cmos_cmd set */ |
1127 | } else | |
1128 | return -EINVAL; | |
1129 | ||
78f81cc4 | 1130 | if (!cmos_eval(cmos_cmd)) |
1da177e4 LT |
1131 | return -EIO; |
1132 | } | |
1133 | ||
1134 | return 0; | |
78f81cc4 BD |
1135 | } |
1136 | ||
9a8e1738 | 1137 | static enum led_access_mode led_supported; |
78f81cc4 BD |
1138 | |
1139 | static int led_init(void) | |
1140 | { | |
1141 | if (!led_handle) | |
1142 | /* led not supported on R30, R31 */ | |
9a8e1738 | 1143 | led_supported = IBMACPI_LED_NONE; |
78f81cc4 BD |
1144 | else if (strlencmp(led_path, "SLED") == 0) |
1145 | /* 570 */ | |
9a8e1738 | 1146 | led_supported = IBMACPI_LED_570; |
78f81cc4 BD |
1147 | else if (strlencmp(led_path, "SYSL") == 0) |
1148 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
9a8e1738 | 1149 | led_supported = IBMACPI_LED_OLD; |
78f81cc4 BD |
1150 | else |
1151 | /* all others */ | |
9a8e1738 | 1152 | led_supported = IBMACPI_LED_NEW; |
78f81cc4 BD |
1153 | |
1154 | return 0; | |
1155 | } | |
1156 | ||
1157 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
1158 | ||
1159 | static int led_read(char *p) | |
1da177e4 LT |
1160 | { |
1161 | int len = 0; | |
1162 | ||
78f81cc4 BD |
1163 | if (!led_supported) { |
1164 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1165 | return len; | |
1166 | } | |
1167 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
1168 | ||
9a8e1738 | 1169 | if (led_supported == IBMACPI_LED_570) { |
78f81cc4 BD |
1170 | /* 570 */ |
1171 | int i, status; | |
1172 | for (i = 0; i < 8; i++) { | |
1173 | if (!acpi_evalf(ec_handle, | |
1174 | &status, "GLED", "dd", 1 << i)) | |
1175 | return -EIO; | |
1176 | len += sprintf(p + len, "%d:\t\t%s\n", | |
1177 | i, led_status(status)); | |
1178 | } | |
1179 | } | |
1180 | ||
1da177e4 | 1181 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 1182 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
1183 | |
1184 | return len; | |
1185 | } | |
1186 | ||
78f81cc4 BD |
1187 | /* off, on, blink */ |
1188 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
1189 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
1190 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
1191 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
1192 | ||
78f81cc4 | 1193 | static int led_write(char *buf) |
1da177e4 LT |
1194 | { |
1195 | char *cmd; | |
78f81cc4 BD |
1196 | int led, ind, ret; |
1197 | ||
1198 | if (!led_supported) | |
1199 | return -ENODEV; | |
1da177e4 LT |
1200 | |
1201 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 1202 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
1203 | return -EINVAL; |
1204 | ||
78f81cc4 BD |
1205 | if (strstr(cmd, "off")) { |
1206 | ind = 0; | |
1da177e4 | 1207 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
1208 | ind = 1; |
1209 | } else if (strstr(cmd, "blink")) { | |
1210 | ind = 2; | |
1da177e4 LT |
1211 | } else |
1212 | return -EINVAL; | |
78f81cc4 | 1213 | |
9a8e1738 | 1214 | if (led_supported == IBMACPI_LED_570) { |
78f81cc4 BD |
1215 | /* 570 */ |
1216 | led = 1 << led; | |
1da177e4 | 1217 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 1218 | led, led_sled_arg1[ind])) |
1da177e4 | 1219 | return -EIO; |
9a8e1738 | 1220 | } else if (led_supported == IBMACPI_LED_OLD) { |
78f81cc4 BD |
1221 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
1222 | led = 1 << led; | |
e062e034 | 1223 | ret = ec_write(IBMACPI_LED_EC_HLMS, led); |
78f81cc4 BD |
1224 | if (ret >= 0) |
1225 | ret = | |
e062e034 HMH |
1226 | ec_write(IBMACPI_LED_EC_HLBL, |
1227 | led * led_exp_hlbl[ind]); | |
78f81cc4 BD |
1228 | if (ret >= 0) |
1229 | ret = | |
e062e034 HMH |
1230 | ec_write(IBMACPI_LED_EC_HLCL, |
1231 | led * led_exp_hlcl[ind]); | |
78f81cc4 BD |
1232 | if (ret < 0) |
1233 | return ret; | |
1234 | } else { | |
1235 | /* all others */ | |
1236 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
1237 | led, led_led_arg1[ind])) | |
1da177e4 | 1238 | return -EIO; |
78f81cc4 BD |
1239 | } |
1240 | } | |
1241 | ||
1242 | return 0; | |
1243 | } | |
1244 | ||
1245 | static int beep_read(char *p) | |
1246 | { | |
1247 | int len = 0; | |
1248 | ||
1249 | if (!beep_handle) | |
1250 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1251 | else { | |
1252 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
1253 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
1254 | } | |
1255 | ||
1256 | return len; | |
1257 | } | |
1258 | ||
1259 | static int beep_write(char *buf) | |
1260 | { | |
1261 | char *cmd; | |
1262 | int beep_cmd; | |
1263 | ||
1264 | if (!beep_handle) | |
1265 | return -ENODEV; | |
1266 | ||
1267 | while ((cmd = next_cmd(&buf))) { | |
1268 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
1269 | beep_cmd >= 0 && beep_cmd <= 17) { | |
1270 | /* beep_cmd set */ | |
1271 | } else | |
1272 | return -EINVAL; | |
1273 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
1274 | return -EIO; | |
1275 | } | |
1276 | ||
1277 | return 0; | |
1278 | } | |
1279 | ||
1280 | static int acpi_ec_read(int i, u8 * p) | |
1281 | { | |
1282 | int v; | |
1283 | ||
1284 | if (ecrd_handle) { | |
1285 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
1286 | return 0; | |
1287 | *p = v; | |
1288 | } else { | |
1289 | if (ec_read(i, p) < 0) | |
1290 | return 0; | |
1291 | } | |
1292 | ||
1293 | return 1; | |
1294 | } | |
1295 | ||
1296 | static int acpi_ec_write(int i, u8 v) | |
1297 | { | |
1298 | if (ecwr_handle) { | |
1299 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
1300 | return 0; | |
1301 | } else { | |
1302 | if (ec_write(i, v) < 0) | |
1303 | return 0; | |
1304 | } | |
1305 | ||
1306 | return 1; | |
1307 | } | |
1308 | ||
a26f878a | 1309 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 BD |
1310 | |
1311 | static int thermal_init(void) | |
1312 | { | |
60eb0b35 HMH |
1313 | u8 t, ta1, ta2; |
1314 | int i; | |
1315 | int acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); | |
1316 | ||
1317 | if (ibm_thinkpad_ec_found && experimental) { | |
1318 | /* | |
1319 | * Direct EC access mode: sensors at registers | |
1320 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
1321 | * non-implemented, thermal sensors return 0x80 when | |
1322 | * not available | |
1323 | */ | |
78f81cc4 | 1324 | |
60eb0b35 HMH |
1325 | ta1 = ta2 = 0; |
1326 | for (i = 0; i < 8; i++) { | |
1327 | if (likely(acpi_ec_read(0x78 + i, &t))) { | |
1328 | ta1 |= t; | |
1329 | } else { | |
1330 | ta1 = 0; | |
1331 | break; | |
1332 | } | |
1333 | if (likely(acpi_ec_read(0xC0 + i, &t))) { | |
1334 | ta2 |= t; | |
1335 | } else { | |
1336 | ta1 = 0; | |
1337 | break; | |
1338 | } | |
1339 | } | |
1340 | if (ta1 == 0) { | |
1341 | /* This is sheer paranoia, but we handle it anyway */ | |
1342 | if (acpi_tmp7) { | |
1343 | printk(IBM_ERR | |
1344 | "ThinkPad ACPI EC access misbehaving, " | |
1345 | "falling back to ACPI TMPx access mode\n"); | |
1346 | thermal_read_mode = IBMACPI_THERMAL_ACPI_TMP07; | |
1347 | } else { | |
1348 | printk(IBM_ERR | |
1349 | "ThinkPad ACPI EC access misbehaving, " | |
1350 | "disabling thermal sensors access\n"); | |
1351 | thermal_read_mode = IBMACPI_THERMAL_NONE; | |
1352 | } | |
1353 | } else { | |
1354 | thermal_read_mode = | |
1355 | (ta2 != 0) ? | |
1356 | IBMACPI_THERMAL_TPEC_16 : IBMACPI_THERMAL_TPEC_8; | |
1357 | } | |
1358 | } else if (acpi_tmp7) { | |
a26f878a HMH |
1359 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
1360 | /* 600e/x, 770e, 770x */ | |
1361 | thermal_read_mode = IBMACPI_THERMAL_ACPI_UPDT; | |
1362 | } else { | |
1363 | /* Standard ACPI TMPx access, max 8 sensors */ | |
1364 | thermal_read_mode = IBMACPI_THERMAL_ACPI_TMP07; | |
1365 | } | |
1366 | } else { | |
1367 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
1368 | thermal_read_mode = IBMACPI_THERMAL_NONE; | |
1369 | } | |
78f81cc4 BD |
1370 | |
1371 | return 0; | |
1372 | } | |
1373 | ||
a26f878a | 1374 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) |
78f81cc4 | 1375 | { |
a26f878a | 1376 | int i, t; |
60eb0b35 | 1377 | s8 tmp; |
a26f878a | 1378 | char tmpi[] = "TMPi"; |
78f81cc4 | 1379 | |
a26f878a HMH |
1380 | if (!s) |
1381 | return -EINVAL; | |
78f81cc4 | 1382 | |
a26f878a | 1383 | switch (thermal_read_mode) { |
60eb0b35 HMH |
1384 | #if IBMACPI_MAX_THERMAL_SENSORS >= 16 |
1385 | case IBMACPI_THERMAL_TPEC_16: | |
1386 | for (i = 0; i < 8; i++) { | |
1387 | if (!acpi_ec_read(0xC0 + i, &tmp)) | |
1388 | return -EIO; | |
1389 | s->temp[i + 8] = tmp * 1000; | |
1390 | } | |
1391 | /* fallthrough */ | |
1392 | #endif | |
1393 | case IBMACPI_THERMAL_TPEC_8: | |
1394 | for (i = 0; i < 8; i++) { | |
1395 | if (!acpi_ec_read(0x78 + i, &tmp)) | |
78f81cc4 | 1396 | return -EIO; |
60eb0b35 HMH |
1397 | s->temp[i] = tmp * 1000; |
1398 | } | |
1399 | return (thermal_read_mode == IBMACPI_THERMAL_TPEC_16) ? 16 : 8; | |
78f81cc4 | 1400 | |
a26f878a HMH |
1401 | case IBMACPI_THERMAL_ACPI_UPDT: |
1402 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
1403 | return -EIO; | |
78f81cc4 BD |
1404 | for (i = 0; i < 8; i++) { |
1405 | tmpi[3] = '0' + i; | |
1406 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
1407 | return -EIO; | |
a26f878a | 1408 | s->temp[i] = (t - 2732) * 100; |
78f81cc4 | 1409 | } |
a26f878a | 1410 | return 8; |
78f81cc4 | 1411 | |
a26f878a | 1412 | case IBMACPI_THERMAL_ACPI_TMP07: |
78f81cc4 BD |
1413 | for (i = 0; i < 8; i++) { |
1414 | tmpi[3] = '0' + i; | |
1415 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
1416 | return -EIO; | |
a26f878a | 1417 | s->temp[i] = t * 1000; |
78f81cc4 | 1418 | } |
a26f878a | 1419 | return 8; |
78f81cc4 | 1420 | |
a26f878a HMH |
1421 | case IBMACPI_THERMAL_NONE: |
1422 | default: | |
1423 | return 0; | |
78f81cc4 | 1424 | } |
a26f878a HMH |
1425 | } |
1426 | ||
1427 | static int thermal_read(char *p) | |
1428 | { | |
1429 | int len = 0; | |
1430 | int n, i; | |
1431 | struct ibm_thermal_sensors_struct t; | |
1432 | ||
1433 | n = thermal_get_sensors(&t); | |
1434 | if (unlikely(n < 0)) | |
1435 | return n; | |
1436 | ||
1437 | len += sprintf(p + len, "temperatures:\t"); | |
1438 | ||
1439 | if (n > 0) { | |
1440 | for (i = 0; i < (n - 1); i++) | |
1441 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
1442 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
1443 | } else | |
1444 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
1445 | |
1446 | return len; | |
1447 | } | |
1448 | ||
1449 | static u8 ecdump_regs[256]; | |
1450 | ||
1451 | static int ecdump_read(char *p) | |
1452 | { | |
1453 | int len = 0; | |
1454 | int i, j; | |
1455 | u8 v; | |
1456 | ||
1457 | len += sprintf(p + len, "EC " | |
1458 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
1459 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
1460 | for (i = 0; i < 256; i += 16) { | |
1461 | len += sprintf(p + len, "EC 0x%02x:", i); | |
1462 | for (j = 0; j < 16; j++) { | |
1463 | if (!acpi_ec_read(i + j, &v)) | |
1464 | break; | |
1465 | if (v != ecdump_regs[i + j]) | |
1466 | len += sprintf(p + len, " *%02x", v); | |
1467 | else | |
1468 | len += sprintf(p + len, " %02x", v); | |
1469 | ecdump_regs[i + j] = v; | |
1470 | } | |
1471 | len += sprintf(p + len, "\n"); | |
1472 | if (j != 16) | |
1473 | break; | |
1474 | } | |
1475 | ||
1476 | /* These are way too dangerous to advertise openly... */ | |
1477 | #if 0 | |
1478 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
1479 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
1480 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
1481 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
1482 | #endif | |
1483 | return len; | |
1484 | } | |
1485 | ||
1486 | static int ecdump_write(char *buf) | |
1487 | { | |
1488 | char *cmd; | |
1489 | int i, v; | |
1490 | ||
1491 | while ((cmd = next_cmd(&buf))) { | |
1492 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
1493 | /* i and v set */ | |
1494 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
1495 | /* i and v set */ | |
1496 | } else | |
1497 | return -EINVAL; | |
1498 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
1499 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
1500 | return -EIO; |
1501 | } else | |
1502 | return -EINVAL; | |
1503 | } | |
1504 | ||
1505 | return 0; | |
78f81cc4 BD |
1506 | } |
1507 | ||
8acb0250 HM |
1508 | static int brightness_get(struct backlight_device *bd) |
1509 | { | |
8d297264 HMH |
1510 | u8 level; |
1511 | if (!acpi_ec_read(brightness_offset, &level)) | |
1512 | return -EIO; | |
8acb0250 | 1513 | |
8d297264 | 1514 | level &= 0x7; |
fb87a811 | 1515 | |
8d297264 | 1516 | return level; |
8acb0250 HM |
1517 | } |
1518 | ||
78f81cc4 | 1519 | static int brightness_read(char *p) |
1da177e4 LT |
1520 | { |
1521 | int len = 0; | |
8acb0250 | 1522 | int level; |
1da177e4 | 1523 | |
8acb0250 | 1524 | if ((level = brightness_get(NULL)) < 0) { |
78f81cc4 BD |
1525 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
1526 | } else { | |
1527 | len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); | |
1528 | len += sprintf(p + len, "commands:\tup, down\n"); | |
1529 | len += sprintf(p + len, "commands:\tlevel <level>" | |
1530 | " (<level> is 0-7)\n"); | |
1531 | } | |
1da177e4 LT |
1532 | |
1533 | return len; | |
1534 | } | |
1535 | ||
8acb0250 | 1536 | static int brightness_set(int value) |
1da177e4 | 1537 | { |
78f81cc4 | 1538 | int cmos_cmd, inc, i; |
8acb0250 HM |
1539 | int current_value = brightness_get(NULL); |
1540 | ||
1541 | value &= 7; | |
1542 | ||
e062e034 HMH |
1543 | cmos_cmd = value > current_value ? |
1544 | TP_CMOS_BRIGHTNESS_UP : TP_CMOS_BRIGHTNESS_DOWN; | |
8acb0250 HM |
1545 | inc = value > current_value ? 1 : -1; |
1546 | for (i = current_value; i != value; i += inc) { | |
1547 | if (!cmos_eval(cmos_cmd)) | |
1548 | return -EIO; | |
1549 | if (!acpi_ec_write(brightness_offset, i + inc)) | |
1550 | return -EIO; | |
1551 | } | |
1552 | ||
1553 | return 0; | |
1554 | } | |
1555 | ||
1556 | static int brightness_write(char *buf) | |
1557 | { | |
1558 | int level; | |
78f81cc4 | 1559 | int new_level; |
1da177e4 | 1560 | char *cmd; |
1da177e4 LT |
1561 | |
1562 | while ((cmd = next_cmd(&buf))) { | |
8acb0250 HM |
1563 | if ((level = brightness_get(NULL)) < 0) |
1564 | return level; | |
78f81cc4 BD |
1565 | level &= 7; |
1566 | ||
1567 | if (strlencmp(cmd, "up") == 0) { | |
1568 | new_level = level == 7 ? 7 : level + 1; | |
1569 | } else if (strlencmp(cmd, "down") == 0) { | |
1570 | new_level = level == 0 ? 0 : level - 1; | |
1571 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
1572 | new_level >= 0 && new_level <= 7) { | |
1573 | /* new_level set */ | |
1574 | } else | |
1575 | return -EINVAL; | |
1576 | ||
8acb0250 | 1577 | brightness_set(new_level); |
78f81cc4 BD |
1578 | } |
1579 | ||
1580 | return 0; | |
1581 | } | |
1582 | ||
8acb0250 HM |
1583 | static int brightness_update_status(struct backlight_device *bd) |
1584 | { | |
c9bf296b HMH |
1585 | return brightness_set( |
1586 | (bd->props.fb_blank == FB_BLANK_UNBLANK && | |
1587 | bd->props.power == FB_BLANK_UNBLANK) ? | |
1588 | bd->props.brightness : 0); | |
8acb0250 HM |
1589 | } |
1590 | ||
599a52d1 | 1591 | static struct backlight_ops ibm_backlight_data = { |
fb87a811 HMH |
1592 | .get_brightness = brightness_get, |
1593 | .update_status = brightness_update_status, | |
fb87a811 HMH |
1594 | }; |
1595 | ||
1596 | static int brightness_init(void) | |
1597 | { | |
adb00581 HMH |
1598 | int b; |
1599 | ||
1600 | b = brightness_get(NULL); | |
1601 | if (b < 0) | |
1602 | return b; | |
1603 | ||
519ab5f2 | 1604 | ibm_backlight_device = backlight_device_register("ibm", NULL, NULL, |
fb87a811 HMH |
1605 | &ibm_backlight_data); |
1606 | if (IS_ERR(ibm_backlight_device)) { | |
1607 | printk(IBM_ERR "Could not register backlight device\n"); | |
1608 | return PTR_ERR(ibm_backlight_device); | |
1609 | } | |
1610 | ||
adb00581 HMH |
1611 | ibm_backlight_device->props.max_brightness = 7; |
1612 | ibm_backlight_device->props.brightness = b; | |
1613 | backlight_update_status(ibm_backlight_device); | |
599a52d1 | 1614 | |
fb87a811 HMH |
1615 | return 0; |
1616 | } | |
1617 | ||
1618 | static void brightness_exit(void) | |
1619 | { | |
1620 | if (ibm_backlight_device) { | |
1621 | backlight_device_unregister(ibm_backlight_device); | |
1622 | ibm_backlight_device = NULL; | |
1623 | } | |
1624 | } | |
1625 | ||
78f81cc4 BD |
1626 | static int volume_read(char *p) |
1627 | { | |
1628 | int len = 0; | |
1629 | u8 level; | |
1630 | ||
1631 | if (!acpi_ec_read(volume_offset, &level)) { | |
1632 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
1633 | } else { | |
1634 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
1635 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
1636 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
1637 | len += sprintf(p + len, "commands:\tlevel <level>" | |
1638 | " (<level> is 0-15)\n"); | |
1639 | } | |
1640 | ||
1641 | return len; | |
1642 | } | |
1643 | ||
78f81cc4 BD |
1644 | static int volume_write(char *buf) |
1645 | { | |
1646 | int cmos_cmd, inc, i; | |
1647 | u8 level, mute; | |
1648 | int new_level, new_mute; | |
1649 | char *cmd; | |
1650 | ||
1651 | while ((cmd = next_cmd(&buf))) { | |
1652 | if (!acpi_ec_read(volume_offset, &level)) | |
1653 | return -EIO; | |
1654 | new_mute = mute = level & 0x40; | |
1655 | new_level = level = level & 0xf; | |
1656 | ||
1657 | if (strlencmp(cmd, "up") == 0) { | |
1658 | if (mute) | |
1659 | new_mute = 0; | |
1660 | else | |
1661 | new_level = level == 15 ? 15 : level + 1; | |
1662 | } else if (strlencmp(cmd, "down") == 0) { | |
1663 | if (mute) | |
1664 | new_mute = 0; | |
1665 | else | |
1666 | new_level = level == 0 ? 0 : level - 1; | |
1667 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
1668 | new_level >= 0 && new_level <= 15) { | |
1669 | /* new_level set */ | |
1670 | } else if (strlencmp(cmd, "mute") == 0) { | |
1671 | new_mute = 0x40; | |
1da177e4 LT |
1672 | } else |
1673 | return -EINVAL; | |
1674 | ||
78f81cc4 | 1675 | if (new_level != level) { /* mute doesn't change */ |
e062e034 HMH |
1676 | cmos_cmd = new_level > level ? |
1677 | TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; | |
78f81cc4 BD |
1678 | inc = new_level > level ? 1 : -1; |
1679 | ||
1680 | if (mute && (!cmos_eval(cmos_cmd) || | |
1681 | !acpi_ec_write(volume_offset, level))) | |
1682 | return -EIO; | |
1683 | ||
1684 | for (i = level; i != new_level; i += inc) | |
1685 | if (!cmos_eval(cmos_cmd) || | |
1686 | !acpi_ec_write(volume_offset, i + inc)) | |
1687 | return -EIO; | |
1688 | ||
e062e034 | 1689 | if (mute && (!cmos_eval(TP_CMOS_VOLUME_MUTE) || |
78f81cc4 BD |
1690 | !acpi_ec_write(volume_offset, |
1691 | new_level + mute))) | |
1692 | return -EIO; | |
1693 | } | |
1694 | ||
1695 | if (new_mute != mute) { /* level doesn't change */ | |
e062e034 HMH |
1696 | cmos_cmd = new_mute ? |
1697 | TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; | |
78f81cc4 BD |
1698 | |
1699 | if (!cmos_eval(cmos_cmd) || | |
1700 | !acpi_ec_write(volume_offset, level + new_mute)) | |
1701 | return -EIO; | |
1702 | } | |
1703 | } | |
1704 | ||
1705 | return 0; | |
1706 | } | |
1707 | ||
69ba91cb HMH |
1708 | static enum fan_status_access_mode fan_status_access_mode; |
1709 | static enum fan_control_access_mode fan_control_access_mode; | |
1710 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 1711 | |
778b4d74 HMH |
1712 | static int fan_control_status_known; |
1713 | static u8 fan_control_initial_status; | |
1714 | ||
25c68a33 | 1715 | static void fan_watchdog_fire(struct work_struct *ignored); |
16663a87 | 1716 | static int fan_watchdog_maxinterval; |
25c68a33 | 1717 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 1718 | |
69ba91cb | 1719 | static int fan_init(void) |
78f81cc4 | 1720 | { |
69ba91cb HMH |
1721 | fan_status_access_mode = IBMACPI_FAN_NONE; |
1722 | fan_control_access_mode = IBMACPI_FAN_WR_NONE; | |
1723 | fan_control_commands = 0; | |
778b4d74 | 1724 | fan_control_status_known = 1; |
16663a87 | 1725 | fan_watchdog_maxinterval = 0; |
78f81cc4 BD |
1726 | |
1727 | if (gfan_handle) { | |
1728 | /* 570, 600e/x, 770e, 770x */ | |
69ba91cb HMH |
1729 | fan_status_access_mode = IBMACPI_FAN_RD_ACPI_GFAN; |
1730 | } else { | |
1731 | /* all other ThinkPads: note that even old-style | |
1732 | * ThinkPad ECs supports the fan control register */ | |
778b4d74 HMH |
1733 | if (likely(acpi_ec_read(fan_status_offset, |
1734 | &fan_control_initial_status))) { | |
69ba91cb | 1735 | fan_status_access_mode = IBMACPI_FAN_RD_TPEC; |
778b4d74 HMH |
1736 | |
1737 | /* In some ThinkPads, neither the EC nor the ACPI | |
1738 | * DSDT initialize the fan status, and it ends up | |
1739 | * being set to 0x07 when it *could* be either | |
1740 | * 0x07 or 0x80. | |
1741 | * | |
1742 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
1743 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
1744 | * to be buggy. */ | |
1745 | if (fan_control_initial_status == 0x07 && | |
1746 | ibm_thinkpad_ec_found && | |
1747 | ((ibm_thinkpad_ec_found[0] == '1' && | |
1748 | ibm_thinkpad_ec_found[1] == 'Y') || | |
1749 | (ibm_thinkpad_ec_found[0] == '7' && | |
1750 | (ibm_thinkpad_ec_found[1] == '6' || | |
1751 | ibm_thinkpad_ec_found[1] == '8' || | |
1752 | ibm_thinkpad_ec_found[1] == '0')) | |
1753 | )) { | |
1754 | printk(IBM_NOTICE | |
1755 | "fan_init: initial fan status is " | |
1756 | "unknown, assuming it is in auto " | |
1757 | "mode\n"); | |
1758 | fan_control_status_known = 0; | |
1759 | } | |
69ba91cb HMH |
1760 | } else { |
1761 | printk(IBM_ERR | |
1762 | "ThinkPad ACPI EC access misbehaving, " | |
1763 | "fan status and control unavailable\n"); | |
1764 | return 0; | |
1765 | } | |
1766 | } | |
78f81cc4 | 1767 | |
69ba91cb HMH |
1768 | if (sfan_handle) { |
1769 | /* 570, 770x-JL */ | |
1770 | fan_control_access_mode = IBMACPI_FAN_WR_ACPI_SFAN; | |
1c6a334e HMH |
1771 | fan_control_commands |= |
1772 | IBMACPI_FAN_CMD_LEVEL | IBMACPI_FAN_CMD_ENABLE; | |
78f81cc4 | 1773 | } else { |
69ba91cb HMH |
1774 | if (!gfan_handle) { |
1775 | /* gfan without sfan means no fan control */ | |
1776 | /* all other models implement TP EC 0x2f control */ | |
1777 | ||
1778 | if (fans_handle) { | |
a8b7a662 | 1779 | /* X31, X40, X41 */ |
69ba91cb HMH |
1780 | fan_control_access_mode = |
1781 | IBMACPI_FAN_WR_ACPI_FANS; | |
1782 | fan_control_commands |= | |
1783 | IBMACPI_FAN_CMD_SPEED | | |
a12095c2 | 1784 | IBMACPI_FAN_CMD_LEVEL | |
69ba91cb HMH |
1785 | IBMACPI_FAN_CMD_ENABLE; |
1786 | } else { | |
1787 | fan_control_access_mode = IBMACPI_FAN_WR_TPEC; | |
a12095c2 HMH |
1788 | fan_control_commands |= |
1789 | IBMACPI_FAN_CMD_LEVEL | | |
1790 | IBMACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
1791 | } |
1792 | } | |
1793 | } | |
1794 | ||
1795 | return 0; | |
1796 | } | |
78f81cc4 | 1797 | |
c52f0aa5 | 1798 | static int fan_get_status(u8 *status) |
78f81cc4 | 1799 | { |
c52f0aa5 | 1800 | u8 s; |
78f81cc4 | 1801 | |
a8b7a662 HMH |
1802 | /* TODO: |
1803 | * Add IBMACPI_FAN_RD_ACPI_FANS ? */ | |
1804 | ||
3ef8a609 HMH |
1805 | switch (fan_status_access_mode) { |
1806 | case IBMACPI_FAN_RD_ACPI_GFAN: | |
78f81cc4 | 1807 | /* 570, 600e/x, 770e, 770x */ |
c52f0aa5 HMH |
1808 | |
1809 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) | |
1da177e4 | 1810 | return -EIO; |
78f81cc4 | 1811 | |
c52f0aa5 HMH |
1812 | if (likely(status)) |
1813 | *status = s & 0x07; | |
3ef8a609 HMH |
1814 | |
1815 | break; | |
1816 | ||
1817 | case IBMACPI_FAN_RD_TPEC: | |
78f81cc4 | 1818 | /* all except 570, 600e/x, 770e, 770x */ |
c52f0aa5 | 1819 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
3ef8a609 | 1820 | return -EIO; |
78f81cc4 | 1821 | |
c52f0aa5 HMH |
1822 | if (likely(status)) |
1823 | *status = s; | |
1824 | ||
1825 | break; | |
1826 | ||
1827 | default: | |
1828 | return -ENXIO; | |
78f81cc4 BD |
1829 | } |
1830 | ||
c52f0aa5 HMH |
1831 | return 0; |
1832 | } | |
1833 | ||
1834 | static int fan_get_speed(unsigned int *speed) | |
1835 | { | |
1836 | u8 hi, lo; | |
1837 | ||
1838 | switch (fan_status_access_mode) { | |
1839 | case IBMACPI_FAN_RD_TPEC: | |
78f81cc4 | 1840 | /* all except 570, 600e/x, 770e, 770x */ |
3ef8a609 HMH |
1841 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
1842 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
1843 | return -EIO; | |
3ef8a609 | 1844 | |
c52f0aa5 HMH |
1845 | if (likely(speed)) |
1846 | *speed = (hi << 8) | lo; | |
1847 | ||
1848 | break; | |
1849 | ||
1850 | default: | |
1851 | return -ENXIO; | |
1852 | } | |
1853 | ||
1854 | return 0; | |
1855 | } | |
1856 | ||
16663a87 HMH |
1857 | static void fan_exit(void) |
1858 | { | |
1859 | cancel_delayed_work(&fan_watchdog_task); | |
1860 | flush_scheduled_work(); | |
1861 | } | |
1862 | ||
1863 | static void fan_watchdog_reset(void) | |
1864 | { | |
1865 | static int fan_watchdog_active = 0; | |
1866 | ||
1867 | if (fan_watchdog_active) | |
1868 | cancel_delayed_work(&fan_watchdog_task); | |
1869 | ||
1870 | if (fan_watchdog_maxinterval > 0) { | |
1871 | fan_watchdog_active = 1; | |
1872 | if (!schedule_delayed_work(&fan_watchdog_task, | |
1873 | msecs_to_jiffies(fan_watchdog_maxinterval | |
1874 | * 1000))) { | |
1875 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
1876 | "watchdog will not trigger\n"); | |
1877 | } | |
1878 | } else | |
1879 | fan_watchdog_active = 0; | |
1880 | } | |
1881 | ||
c52f0aa5 HMH |
1882 | static int fan_read(char *p) |
1883 | { | |
1884 | int len = 0; | |
1885 | int rc; | |
1886 | u8 status; | |
1887 | unsigned int speed = 0; | |
1888 | ||
1889 | switch (fan_status_access_mode) { | |
1890 | case IBMACPI_FAN_RD_ACPI_GFAN: | |
1891 | /* 570, 600e/x, 770e, 770x */ | |
1892 | if ((rc = fan_get_status(&status)) < 0) | |
1893 | return rc; | |
1894 | ||
bab812a3 HMH |
1895 | len += sprintf(p + len, "status:\t\t%s\n" |
1896 | "level:\t\t%d\n", | |
1897 | (status != 0) ? "enabled" : "disabled", status); | |
c52f0aa5 HMH |
1898 | break; |
1899 | ||
1900 | case IBMACPI_FAN_RD_TPEC: | |
1901 | /* all except 570, 600e/x, 770e, 770x */ | |
1902 | if ((rc = fan_get_status(&status)) < 0) | |
1903 | return rc; | |
1904 | ||
778b4d74 HMH |
1905 | if (unlikely(!fan_control_status_known)) { |
1906 | if (status != fan_control_initial_status) | |
1907 | fan_control_status_known = 1; | |
1908 | else | |
1909 | /* Return most likely status. In fact, it | |
1910 | * might be the only possible status */ | |
1911 | status = IBMACPI_FAN_EC_AUTO; | |
1912 | } | |
1913 | ||
bab812a3 HMH |
1914 | len += sprintf(p + len, "status:\t\t%s\n", |
1915 | (status != 0) ? "enabled" : "disabled"); | |
c52f0aa5 | 1916 | |
778b4d74 HMH |
1917 | /* No ThinkPad boots on disengaged mode, we can safely |
1918 | * assume the tachometer is online if fan control status | |
1919 | * was unknown */ | |
c52f0aa5 HMH |
1920 | if ((rc = fan_get_speed(&speed)) < 0) |
1921 | return rc; | |
1922 | ||
1923 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
bab812a3 HMH |
1924 | |
1925 | if (status & IBMACPI_FAN_EC_DISENGAGED) | |
1926 | /* Disengaged mode takes precedence */ | |
1927 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
1928 | else if (status & IBMACPI_FAN_EC_AUTO) | |
1929 | len += sprintf(p + len, "level:\t\tauto\n"); | |
1930 | else | |
1931 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
3ef8a609 HMH |
1932 | break; |
1933 | ||
1934 | case IBMACPI_FAN_NONE: | |
1935 | default: | |
1936 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
78f81cc4 BD |
1937 | } |
1938 | ||
a12095c2 HMH |
1939 | if (fan_control_commands & IBMACPI_FAN_CMD_LEVEL) { |
1940 | len += sprintf(p + len, "commands:\tlevel <level>"); | |
1941 | ||
1942 | switch (fan_control_access_mode) { | |
1943 | case IBMACPI_FAN_WR_ACPI_SFAN: | |
1944 | len += sprintf(p + len, " (<level> is 0-7)\n"); | |
1945 | break; | |
1946 | ||
1947 | default: | |
1948 | len += sprintf(p + len, " (<level> is 0-7, " | |
1949 | "auto, disengaged)\n"); | |
1950 | break; | |
1951 | } | |
1952 | } | |
3ef8a609 HMH |
1953 | |
1954 | if (fan_control_commands & IBMACPI_FAN_CMD_ENABLE) | |
16663a87 HMH |
1955 | len += sprintf(p + len, "commands:\tenable, disable\n" |
1956 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
1957 | "1-120 (seconds))\n"); | |
3ef8a609 HMH |
1958 | |
1959 | if (fan_control_commands & IBMACPI_FAN_CMD_SPEED) | |
78f81cc4 BD |
1960 | len += sprintf(p + len, "commands:\tspeed <speed>" |
1961 | " (<speed> is 0-65535)\n"); | |
1962 | ||
1963 | return len; | |
1964 | } | |
1965 | ||
18ad7996 | 1966 | static int fan_set_level(int level) |
78f81cc4 | 1967 | { |
18ad7996 HMH |
1968 | switch (fan_control_access_mode) { |
1969 | case IBMACPI_FAN_WR_ACPI_SFAN: | |
1970 | if (level >= 0 && level <= 7) { | |
78f81cc4 BD |
1971 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
1972 | return -EIO; | |
18ad7996 HMH |
1973 | } else |
1974 | return -EINVAL; | |
1975 | break; | |
1976 | ||
a12095c2 HMH |
1977 | case IBMACPI_FAN_WR_ACPI_FANS: |
1978 | case IBMACPI_FAN_WR_TPEC: | |
1979 | if ((level != IBMACPI_FAN_EC_AUTO) && | |
1980 | (level != IBMACPI_FAN_EC_DISENGAGED) && | |
1981 | ((level < 0) || (level > 7))) | |
1982 | return -EINVAL; | |
1983 | ||
1984 | if (!acpi_ec_write(fan_status_offset, level)) | |
1985 | return -EIO; | |
778b4d74 HMH |
1986 | else |
1987 | fan_control_status_known = 1; | |
a12095c2 HMH |
1988 | break; |
1989 | ||
18ad7996 HMH |
1990 | default: |
1991 | return -ENXIO; | |
1992 | } | |
1993 | return 0; | |
1994 | } | |
1995 | ||
1996 | static int fan_set_enable(void) | |
1997 | { | |
1c6a334e HMH |
1998 | u8 s; |
1999 | int rc; | |
2000 | ||
18ad7996 HMH |
2001 | switch (fan_control_access_mode) { |
2002 | case IBMACPI_FAN_WR_ACPI_FANS: | |
2003 | case IBMACPI_FAN_WR_TPEC: | |
1c6a334e HMH |
2004 | if ((rc = fan_get_status(&s)) < 0) |
2005 | return rc; | |
2006 | ||
2007 | /* Don't go out of emergency fan mode */ | |
2008 | if (s != 7) | |
2009 | s = IBMACPI_FAN_EC_AUTO; | |
2010 | ||
2011 | if (!acpi_ec_write(fan_status_offset, s)) | |
2012 | return -EIO; | |
778b4d74 HMH |
2013 | else |
2014 | fan_control_status_known = 1; | |
1c6a334e HMH |
2015 | break; |
2016 | ||
2017 | case IBMACPI_FAN_WR_ACPI_SFAN: | |
2018 | if ((rc = fan_get_status(&s)) < 0) | |
2019 | return rc; | |
2020 | ||
2021 | s &= 0x07; | |
2022 | ||
2023 | /* Set fan to at least level 4 */ | |
2024 | if (s < 4) | |
2025 | s = 4; | |
2026 | ||
2027 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) | |
18ad7996 HMH |
2028 | return -EIO; |
2029 | break; | |
2030 | ||
2031 | default: | |
2032 | return -ENXIO; | |
2033 | } | |
2034 | return 0; | |
2035 | } | |
2036 | ||
2037 | static int fan_set_disable(void) | |
2038 | { | |
2039 | switch (fan_control_access_mode) { | |
2040 | case IBMACPI_FAN_WR_ACPI_FANS: | |
2041 | case IBMACPI_FAN_WR_TPEC: | |
2042 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
2043 | return -EIO; | |
778b4d74 HMH |
2044 | else |
2045 | fan_control_status_known = 1; | |
18ad7996 HMH |
2046 | break; |
2047 | ||
1c6a334e HMH |
2048 | case IBMACPI_FAN_WR_ACPI_SFAN: |
2049 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
2050 | return -EIO; | |
2051 | break; | |
2052 | ||
18ad7996 HMH |
2053 | default: |
2054 | return -ENXIO; | |
2055 | } | |
2056 | return 0; | |
2057 | } | |
2058 | ||
2059 | static int fan_set_speed(int speed) | |
2060 | { | |
2061 | switch (fan_control_access_mode) { | |
2062 | case IBMACPI_FAN_WR_ACPI_FANS: | |
2063 | if (speed >= 0 && speed <= 65535) { | |
78f81cc4 BD |
2064 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", |
2065 | speed, speed, speed)) | |
2066 | return -EIO; | |
2067 | } else | |
2068 | return -EINVAL; | |
18ad7996 | 2069 | break; |
1da177e4 | 2070 | |
18ad7996 HMH |
2071 | default: |
2072 | return -ENXIO; | |
2073 | } | |
1da177e4 | 2074 | return 0; |
78f81cc4 BD |
2075 | } |
2076 | ||
18ad7996 HMH |
2077 | static int fan_write_cmd_level(const char *cmd, int *rc) |
2078 | { | |
2079 | int level; | |
2080 | ||
a12095c2 HMH |
2081 | if (strlencmp(cmd, "level auto") == 0) |
2082 | level = IBMACPI_FAN_EC_AUTO; | |
2083 | else if (strlencmp(cmd, "level disengaged") == 0) | |
2084 | level = IBMACPI_FAN_EC_DISENGAGED; | |
2085 | else if (sscanf(cmd, "level %d", &level) != 1) | |
18ad7996 HMH |
2086 | return 0; |
2087 | ||
2088 | if ((*rc = fan_set_level(level)) == -ENXIO) | |
2089 | printk(IBM_ERR "level command accepted for unsupported " | |
2090 | "access mode %d", fan_control_access_mode); | |
2091 | ||
2092 | return 1; | |
2093 | } | |
2094 | ||
2095 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
2096 | { | |
2097 | if (strlencmp(cmd, "enable") != 0) | |
2098 | return 0; | |
2099 | ||
2100 | if ((*rc = fan_set_enable()) == -ENXIO) | |
2101 | printk(IBM_ERR "enable command accepted for unsupported " | |
2102 | "access mode %d", fan_control_access_mode); | |
2103 | ||
2104 | return 1; | |
2105 | } | |
2106 | ||
2107 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
2108 | { | |
2109 | if (strlencmp(cmd, "disable") != 0) | |
2110 | return 0; | |
2111 | ||
2112 | if ((*rc = fan_set_disable()) == -ENXIO) | |
2113 | printk(IBM_ERR "disable command accepted for unsupported " | |
2114 | "access mode %d", fan_control_access_mode); | |
2115 | ||
2116 | return 1; | |
2117 | } | |
2118 | ||
2119 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
2120 | { | |
2121 | int speed; | |
2122 | ||
a8b7a662 HMH |
2123 | /* TODO: |
2124 | * Support speed <low> <medium> <high> ? */ | |
2125 | ||
18ad7996 HMH |
2126 | if (sscanf(cmd, "speed %d", &speed) != 1) |
2127 | return 0; | |
2128 | ||
2129 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
2130 | printk(IBM_ERR "speed command accepted for unsupported " | |
2131 | "access mode %d", fan_control_access_mode); | |
2132 | ||
2133 | return 1; | |
2134 | } | |
2135 | ||
16663a87 HMH |
2136 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
2137 | { | |
2138 | int interval; | |
2139 | ||
2140 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
2141 | return 0; | |
2142 | ||
2143 | if (interval < 0 || interval > 120) | |
2144 | *rc = -EINVAL; | |
2145 | else | |
2146 | fan_watchdog_maxinterval = interval; | |
2147 | ||
2148 | return 1; | |
2149 | } | |
2150 | ||
18ad7996 HMH |
2151 | static int fan_write(char *buf) |
2152 | { | |
2153 | char *cmd; | |
2154 | int rc = 0; | |
2155 | ||
2156 | while (!rc && (cmd = next_cmd(&buf))) { | |
2157 | if (!((fan_control_commands & IBMACPI_FAN_CMD_LEVEL) && | |
2158 | fan_write_cmd_level(cmd, &rc)) && | |
2159 | !((fan_control_commands & IBMACPI_FAN_CMD_ENABLE) && | |
2160 | (fan_write_cmd_enable(cmd, &rc) || | |
16663a87 HMH |
2161 | fan_write_cmd_disable(cmd, &rc) || |
2162 | fan_write_cmd_watchdog(cmd, &rc))) && | |
18ad7996 HMH |
2163 | !((fan_control_commands & IBMACPI_FAN_CMD_SPEED) && |
2164 | fan_write_cmd_speed(cmd, &rc)) | |
2165 | ) | |
2166 | rc = -EINVAL; | |
16663a87 HMH |
2167 | else if (!rc) |
2168 | fan_watchdog_reset(); | |
18ad7996 HMH |
2169 | } |
2170 | ||
2171 | return rc; | |
2172 | } | |
2173 | ||
25c68a33 | 2174 | static void fan_watchdog_fire(struct work_struct *ignored) |
16663a87 HMH |
2175 | { |
2176 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); | |
2177 | if (fan_set_enable()) { | |
2178 | printk(IBM_ERR "fan watchdog: error while enabling fan\n"); | |
2179 | /* reschedule for later */ | |
2180 | fan_watchdog_reset(); | |
2181 | } | |
2182 | } | |
2183 | ||
1da177e4 LT |
2184 | static struct ibm_struct ibms[] = { |
2185 | { | |
78f81cc4 | 2186 | .name = "driver", |
1f21782e | 2187 | .init = ibm_acpi_driver_init, |
e062e034 | 2188 | .read = ibm_acpi_driver_read, |
78f81cc4 BD |
2189 | }, |
2190 | { | |
2191 | .name = "hotkey", | |
2192 | .hid = IBM_HKEY_HID, | |
2193 | .init = hotkey_init, | |
2194 | .read = hotkey_read, | |
2195 | .write = hotkey_write, | |
2196 | .exit = hotkey_exit, | |
2197 | .notify = hotkey_notify, | |
2198 | .handle = &hkey_handle, | |
2199 | .type = ACPI_DEVICE_NOTIFY, | |
2200 | }, | |
2201 | { | |
2202 | .name = "bluetooth", | |
2203 | .init = bluetooth_init, | |
2204 | .read = bluetooth_read, | |
2205 | .write = bluetooth_write, | |
2206 | }, | |
42adb53c JF |
2207 | { |
2208 | .name = "wan", | |
2209 | .init = wan_init, | |
2210 | .read = wan_read, | |
2211 | .write = wan_write, | |
2212 | .experimental = 1, | |
2213 | }, | |
78f81cc4 BD |
2214 | { |
2215 | .name = "video", | |
2216 | .init = video_init, | |
2217 | .read = video_read, | |
2218 | .write = video_write, | |
2219 | .exit = video_exit, | |
2220 | }, | |
1da177e4 | 2221 | { |
78f81cc4 BD |
2222 | .name = "light", |
2223 | .init = light_init, | |
2224 | .read = light_read, | |
2225 | .write = light_write, | |
2226 | }, | |
63e5f248 | 2227 | #ifdef CONFIG_ACPI_IBM_DOCK |
1da177e4 | 2228 | { |
78f81cc4 BD |
2229 | .name = "dock", |
2230 | .read = dock_read, | |
2231 | .write = dock_write, | |
2232 | .notify = dock_notify, | |
2233 | .handle = &dock_handle, | |
2234 | .type = ACPI_SYSTEM_NOTIFY, | |
2235 | }, | |
1da177e4 | 2236 | { |
78f81cc4 BD |
2237 | .name = "dock", |
2238 | .hid = IBM_PCI_HID, | |
2239 | .notify = dock_notify, | |
2240 | .handle = &pci_handle, | |
2241 | .type = ACPI_SYSTEM_NOTIFY, | |
2242 | }, | |
63e5f248 | 2243 | #endif |
2bc808a8 | 2244 | #ifdef CONFIG_ACPI_IBM_BAY |
1da177e4 | 2245 | { |
78f81cc4 BD |
2246 | .name = "bay", |
2247 | .init = bay_init, | |
2248 | .read = bay_read, | |
2249 | .write = bay_write, | |
2250 | .notify = bay_notify, | |
2251 | .handle = &bay_handle, | |
2252 | .type = ACPI_SYSTEM_NOTIFY, | |
2253 | }, | |
2bc808a8 | 2254 | #endif /* CONFIG_ACPI_IBM_BAY */ |
1da177e4 | 2255 | { |
78f81cc4 BD |
2256 | .name = "cmos", |
2257 | .read = cmos_read, | |
2258 | .write = cmos_write, | |
2259 | }, | |
1da177e4 | 2260 | { |
78f81cc4 BD |
2261 | .name = "led", |
2262 | .init = led_init, | |
2263 | .read = led_read, | |
2264 | .write = led_write, | |
2265 | }, | |
1da177e4 | 2266 | { |
78f81cc4 BD |
2267 | .name = "beep", |
2268 | .read = beep_read, | |
2269 | .write = beep_write, | |
2270 | }, | |
1da177e4 | 2271 | { |
78f81cc4 BD |
2272 | .name = "thermal", |
2273 | .init = thermal_init, | |
2274 | .read = thermal_read, | |
2275 | }, | |
1da177e4 | 2276 | { |
78f81cc4 BD |
2277 | .name = "ecdump", |
2278 | .read = ecdump_read, | |
2279 | .write = ecdump_write, | |
2280 | .experimental = 1, | |
2281 | }, | |
2282 | { | |
2283 | .name = "brightness", | |
2284 | .read = brightness_read, | |
2285 | .write = brightness_write, | |
fb87a811 HMH |
2286 | .init = brightness_init, |
2287 | .exit = brightness_exit, | |
78f81cc4 BD |
2288 | }, |
2289 | { | |
2290 | .name = "volume", | |
2291 | .read = volume_read, | |
2292 | .write = volume_write, | |
78f81cc4 BD |
2293 | }, |
2294 | { | |
2295 | .name = "fan", | |
2296 | .read = fan_read, | |
2297 | .write = fan_write, | |
69ba91cb | 2298 | .init = fan_init, |
16663a87 | 2299 | .exit = fan_exit, |
78f81cc4 BD |
2300 | .experimental = 1, |
2301 | }, | |
1da177e4 | 2302 | }; |
1da177e4 LT |
2303 | |
2304 | static int dispatch_read(char *page, char **start, off_t off, int count, | |
2305 | int *eof, void *data) | |
2306 | { | |
50dd0969 | 2307 | struct ibm_struct *ibm = data; |
1da177e4 | 2308 | int len; |
78f81cc4 | 2309 | |
1da177e4 LT |
2310 | if (!ibm || !ibm->read) |
2311 | return -EINVAL; | |
2312 | ||
78f81cc4 | 2313 | len = ibm->read(page); |
1da177e4 LT |
2314 | if (len < 0) |
2315 | return len; | |
2316 | ||
2317 | if (len <= off + count) | |
2318 | *eof = 1; | |
2319 | *start = page + off; | |
2320 | len -= off; | |
2321 | if (len > count) | |
2322 | len = count; | |
2323 | if (len < 0) | |
2324 | len = 0; | |
2325 | ||
2326 | return len; | |
2327 | } | |
2328 | ||
78f81cc4 | 2329 | static int dispatch_write(struct file *file, const char __user * userbuf, |
1da177e4 LT |
2330 | unsigned long count, void *data) |
2331 | { | |
50dd0969 | 2332 | struct ibm_struct *ibm = data; |
1da177e4 LT |
2333 | char *kernbuf; |
2334 | int ret; | |
2335 | ||
2336 | if (!ibm || !ibm->write) | |
2337 | return -EINVAL; | |
2338 | ||
2339 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
2340 | if (!kernbuf) | |
2341 | return -ENOMEM; | |
2342 | ||
78f81cc4 | 2343 | if (copy_from_user(kernbuf, userbuf, count)) { |
1da177e4 | 2344 | kfree(kernbuf); |
78f81cc4 | 2345 | return -EFAULT; |
1da177e4 LT |
2346 | } |
2347 | ||
2348 | kernbuf[count] = 0; | |
2349 | strcat(kernbuf, ","); | |
78f81cc4 | 2350 | ret = ibm->write(kernbuf); |
1da177e4 LT |
2351 | if (ret == 0) |
2352 | ret = count; | |
2353 | ||
2354 | kfree(kernbuf); | |
2355 | ||
78f81cc4 | 2356 | return ret; |
1da177e4 LT |
2357 | } |
2358 | ||
2359 | static void dispatch_notify(acpi_handle handle, u32 event, void *data) | |
2360 | { | |
50dd0969 | 2361 | struct ibm_struct *ibm = data; |
1da177e4 LT |
2362 | |
2363 | if (!ibm || !ibm->notify) | |
2364 | return; | |
2365 | ||
2366 | ibm->notify(ibm, event); | |
2367 | } | |
2368 | ||
78f81cc4 | 2369 | static int __init setup_notify(struct ibm_struct *ibm) |
1da177e4 LT |
2370 | { |
2371 | acpi_status status; | |
2372 | int ret; | |
2373 | ||
2374 | if (!*ibm->handle) | |
2375 | return 0; | |
2376 | ||
2377 | ret = acpi_bus_get_device(*ibm->handle, &ibm->device); | |
2378 | if (ret < 0) { | |
2379 | printk(IBM_ERR "%s device not present\n", ibm->name); | |
96e89afe | 2380 | return -ENODEV; |
1da177e4 LT |
2381 | } |
2382 | ||
2383 | acpi_driver_data(ibm->device) = ibm; | |
2384 | sprintf(acpi_device_class(ibm->device), "%s/%s", IBM_NAME, ibm->name); | |
2385 | ||
2386 | status = acpi_install_notify_handler(*ibm->handle, ibm->type, | |
2387 | dispatch_notify, ibm); | |
2388 | if (ACPI_FAILURE(status)) { | |
96e89afe HMH |
2389 | if (status == AE_ALREADY_EXISTS) { |
2390 | printk(IBM_NOTICE "another device driver is already handling %s events\n", | |
2391 | ibm->name); | |
2392 | } else { | |
2393 | printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", | |
2394 | ibm->name, status); | |
2395 | } | |
1da177e4 LT |
2396 | return -ENODEV; |
2397 | } | |
4afaf54b | 2398 | ibm->notify_installed = 1; |
1da177e4 LT |
2399 | return 0; |
2400 | } | |
2401 | ||
78f81cc4 | 2402 | static int __init ibm_device_add(struct acpi_device *device) |
1da177e4 LT |
2403 | { |
2404 | return 0; | |
2405 | } | |
2406 | ||
e062e034 | 2407 | static int __init register_ibmacpi_subdriver(struct ibm_struct *ibm) |
1da177e4 LT |
2408 | { |
2409 | int ret; | |
2410 | ||
36bcbec7 | 2411 | ibm->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); |
1da177e4 LT |
2412 | if (!ibm->driver) { |
2413 | printk(IBM_ERR "kmalloc(ibm->driver) failed\n"); | |
2414 | return -1; | |
2415 | } | |
2416 | ||
3dfd35cd | 2417 | sprintf(ibm->driver->name, "%s_%s", IBM_NAME, ibm->name); |
1da177e4 | 2418 | ibm->driver->ids = ibm->hid; |
78f81cc4 | 2419 | ibm->driver->ops.add = &ibm_device_add; |
1da177e4 LT |
2420 | |
2421 | ret = acpi_bus_register_driver(ibm->driver); | |
2422 | if (ret < 0) { | |
2423 | printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", | |
2424 | ibm->hid, ret); | |
2425 | kfree(ibm->driver); | |
2426 | } | |
2427 | ||
2428 | return ret; | |
2429 | } | |
2430 | ||
78f81cc4 | 2431 | static int __init ibm_init(struct ibm_struct *ibm) |
1da177e4 LT |
2432 | { |
2433 | int ret; | |
2434 | struct proc_dir_entry *entry; | |
2435 | ||
2436 | if (ibm->experimental && !experimental) | |
2437 | return 0; | |
2438 | ||
2439 | if (ibm->hid) { | |
e062e034 | 2440 | ret = register_ibmacpi_subdriver(ibm); |
1da177e4 LT |
2441 | if (ret < 0) |
2442 | return ret; | |
2443 | ibm->driver_registered = 1; | |
2444 | } | |
2445 | ||
2446 | if (ibm->init) { | |
78f81cc4 | 2447 | ret = ibm->init(); |
1da177e4 LT |
2448 | if (ret != 0) |
2449 | return ret; | |
2450 | ibm->init_called = 1; | |
2451 | } | |
2452 | ||
78f81cc4 BD |
2453 | if (ibm->read) { |
2454 | entry = create_proc_entry(ibm->name, | |
2455 | S_IFREG | S_IRUGO | S_IWUSR, | |
2456 | proc_dir); | |
2457 | if (!entry) { | |
2458 | printk(IBM_ERR "unable to create proc entry %s\n", | |
2459 | ibm->name); | |
2460 | return -ENODEV; | |
2461 | } | |
2462 | entry->owner = THIS_MODULE; | |
2463 | entry->data = ibm; | |
1da177e4 | 2464 | entry->read_proc = &dispatch_read; |
78f81cc4 BD |
2465 | if (ibm->write) |
2466 | entry->write_proc = &dispatch_write; | |
2467 | ibm->proc_created = 1; | |
2468 | } | |
1da177e4 LT |
2469 | |
2470 | if (ibm->notify) { | |
2471 | ret = setup_notify(ibm); | |
96e89afe HMH |
2472 | if (ret == -ENODEV) { |
2473 | printk(IBM_NOTICE "disabling subdriver %s\n", | |
2474 | ibm->name); | |
2475 | ibm_exit(ibm); | |
2476 | return 0; | |
2477 | } | |
1da177e4 LT |
2478 | if (ret < 0) |
2479 | return ret; | |
2480 | } | |
2481 | ||
2482 | return 0; | |
2483 | } | |
2484 | ||
2485 | static void ibm_exit(struct ibm_struct *ibm) | |
2486 | { | |
2487 | if (ibm->notify_installed) | |
2488 | acpi_remove_notify_handler(*ibm->handle, ibm->type, | |
2489 | dispatch_notify); | |
2490 | ||
2491 | if (ibm->proc_created) | |
2492 | remove_proc_entry(ibm->name, proc_dir); | |
2493 | ||
2494 | if (ibm->init_called && ibm->exit) | |
78f81cc4 | 2495 | ibm->exit(); |
1da177e4 LT |
2496 | |
2497 | if (ibm->driver_registered) { | |
2498 | acpi_bus_unregister_driver(ibm->driver); | |
2499 | kfree(ibm->driver); | |
2500 | } | |
2501 | } | |
2502 | ||
78f81cc4 BD |
2503 | static void __init ibm_handle_init(char *name, |
2504 | acpi_handle * handle, acpi_handle parent, | |
2505 | char **paths, int num_paths, char **path) | |
1da177e4 LT |
2506 | { |
2507 | int i; | |
2508 | acpi_status status; | |
2509 | ||
78f81cc4 | 2510 | for (i = 0; i < num_paths; i++) { |
1da177e4 | 2511 | status = acpi_get_handle(parent, paths[i], handle); |
78f81cc4 BD |
2512 | if (ACPI_SUCCESS(status)) { |
2513 | *path = paths[i]; | |
2514 | return; | |
2515 | } | |
1da177e4 LT |
2516 | } |
2517 | ||
78f81cc4 | 2518 | *handle = NULL; |
1da177e4 LT |
2519 | } |
2520 | ||
78f81cc4 | 2521 | #define IBM_HANDLE_INIT(object) \ |
1da177e4 | 2522 | ibm_handle_init(#object, &object##_handle, *object##_parent, \ |
78f81cc4 | 2523 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
1da177e4 | 2524 | |
3945ac36 | 2525 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
1da177e4 LT |
2526 | { |
2527 | unsigned int i; | |
1da177e4 | 2528 | |
78f81cc4 BD |
2529 | for (i = 0; i < ARRAY_SIZE(ibms); i++) |
2530 | if (strcmp(ibms[i].name, kp->name) == 0 && ibms[i].write) { | |
2531 | if (strlen(val) > sizeof(ibms[i].param) - 2) | |
2532 | return -ENOSPC; | |
2533 | strcpy(ibms[i].param, val); | |
2534 | strcat(ibms[i].param, ","); | |
2535 | return 0; | |
2536 | } | |
1da177e4 | 2537 | |
1da177e4 LT |
2538 | return -EINVAL; |
2539 | } | |
2540 | ||
2541 | #define IBM_PARAM(feature) \ | |
2542 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
2543 | ||
78f81cc4 BD |
2544 | IBM_PARAM(hotkey); |
2545 | IBM_PARAM(bluetooth); | |
2546 | IBM_PARAM(video); | |
2547 | IBM_PARAM(light); | |
63e5f248 | 2548 | #ifdef CONFIG_ACPI_IBM_DOCK |
78f81cc4 | 2549 | IBM_PARAM(dock); |
63e5f248 | 2550 | #endif |
2bc808a8 | 2551 | #ifdef CONFIG_ACPI_IBM_BAY |
78f81cc4 | 2552 | IBM_PARAM(bay); |
2bc808a8 | 2553 | #endif /* CONFIG_ACPI_IBM_BAY */ |
78f81cc4 BD |
2554 | IBM_PARAM(cmos); |
2555 | IBM_PARAM(led); | |
2556 | IBM_PARAM(beep); | |
2557 | IBM_PARAM(ecdump); | |
2558 | IBM_PARAM(brightness); | |
2559 | IBM_PARAM(volume); | |
2560 | IBM_PARAM(fan); | |
2561 | ||
1da177e4 LT |
2562 | static void acpi_ibm_exit(void) |
2563 | { | |
2564 | int i; | |
2565 | ||
78f81cc4 | 2566 | for (i = ARRAY_SIZE(ibms) - 1; i >= 0; i--) |
1da177e4 LT |
2567 | ibm_exit(&ibms[i]); |
2568 | ||
3945ac36 HMH |
2569 | if (proc_dir) |
2570 | remove_proc_entry(IBM_DIR, acpi_root_dir); | |
49a13cd6 HMH |
2571 | |
2572 | if (ibm_thinkpad_ec_found) | |
2573 | kfree(ibm_thinkpad_ec_found); | |
1da177e4 LT |
2574 | } |
2575 | ||
49a13cd6 | 2576 | static char* __init check_dmi_for_ec(void) |
60eb0b35 HMH |
2577 | { |
2578 | struct dmi_device *dev = NULL; | |
49a13cd6 | 2579 | char ec_fw_string[18]; |
60eb0b35 HMH |
2580 | |
2581 | /* | |
2582 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
2583 | * X32 or newer, all Z series; Some models must have an | |
2584 | * up-to-date BIOS or they will not be detected. | |
2585 | * | |
2586 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
2587 | */ | |
2588 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
49a13cd6 HMH |
2589 | if (sscanf(dev->name, |
2590 | "IBM ThinkPad Embedded Controller -[%17c", | |
2591 | ec_fw_string) == 1) { | |
2592 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
2593 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
2594 | return kstrdup(ec_fw_string, GFP_KERNEL); | |
2595 | } | |
60eb0b35 | 2596 | } |
49a13cd6 | 2597 | return NULL; |
1da177e4 LT |
2598 | } |
2599 | ||
2600 | static int __init acpi_ibm_init(void) | |
2601 | { | |
2602 | int ret, i; | |
2603 | ||
2604 | if (acpi_disabled) | |
2605 | return -ENODEV; | |
2606 | ||
78f81cc4 BD |
2607 | /* ec is required because many other handles are relative to it */ |
2608 | IBM_HANDLE_INIT(ec); | |
2609 | if (!ec_handle) { | |
2610 | printk(IBM_ERR "ec object not found\n"); | |
1da177e4 | 2611 | return -ENODEV; |
78f81cc4 | 2612 | } |
1da177e4 | 2613 | |
60eb0b35 HMH |
2614 | /* Models with newer firmware report the EC in DMI */ |
2615 | ibm_thinkpad_ec_found = check_dmi_for_ec(); | |
2616 | ||
1da177e4 | 2617 | /* these handles are not required */ |
78f81cc4 BD |
2618 | IBM_HANDLE_INIT(vid); |
2619 | IBM_HANDLE_INIT(vid2); | |
2620 | IBM_HANDLE_INIT(ledb); | |
2621 | IBM_HANDLE_INIT(led); | |
2622 | IBM_HANDLE_INIT(hkey); | |
2623 | IBM_HANDLE_INIT(lght); | |
2624 | IBM_HANDLE_INIT(cmos); | |
63e5f248 | 2625 | #ifdef CONFIG_ACPI_IBM_DOCK |
78f81cc4 | 2626 | IBM_HANDLE_INIT(dock); |
63e5f248 | 2627 | #endif |
78f81cc4 | 2628 | IBM_HANDLE_INIT(pci); |
2bc808a8 | 2629 | #ifdef CONFIG_ACPI_IBM_BAY |
78f81cc4 BD |
2630 | IBM_HANDLE_INIT(bay); |
2631 | if (bay_handle) | |
2632 | IBM_HANDLE_INIT(bay_ej); | |
2633 | IBM_HANDLE_INIT(bay2); | |
2634 | if (bay2_handle) | |
2635 | IBM_HANDLE_INIT(bay2_ej); | |
2bc808a8 | 2636 | #endif /* CONFIG_ACPI_IBM_BAY */ |
78f81cc4 BD |
2637 | IBM_HANDLE_INIT(beep); |
2638 | IBM_HANDLE_INIT(ecrd); | |
2639 | IBM_HANDLE_INIT(ecwr); | |
2640 | IBM_HANDLE_INIT(fans); | |
2641 | IBM_HANDLE_INIT(gfan); | |
2642 | IBM_HANDLE_INIT(sfan); | |
1da177e4 LT |
2643 | |
2644 | proc_dir = proc_mkdir(IBM_DIR, acpi_root_dir); | |
2645 | if (!proc_dir) { | |
2646 | printk(IBM_ERR "unable to create proc dir %s", IBM_DIR); | |
3945ac36 | 2647 | acpi_ibm_exit(); |
1da177e4 LT |
2648 | return -ENODEV; |
2649 | } | |
2650 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 BD |
2651 | |
2652 | for (i = 0; i < ARRAY_SIZE(ibms); i++) { | |
1da177e4 | 2653 | ret = ibm_init(&ibms[i]); |
78f81cc4 BD |
2654 | if (ret >= 0 && *ibms[i].param) |
2655 | ret = ibms[i].write(ibms[i].param); | |
1da177e4 LT |
2656 | if (ret < 0) { |
2657 | acpi_ibm_exit(); | |
2658 | return ret; | |
2659 | } | |
2660 | } | |
2661 | ||
2662 | return 0; | |
2663 | } | |
2664 | ||
2665 | module_init(acpi_ibm_init); | |
2666 | module_exit(acpi_ibm_exit); |