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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> |
1da177e4 LT |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
78f81cc4 BD |
20 | */ |
21 | ||
22 | #define IBM_VERSION "0.12a" | |
23 | ||
24 | /* | |
1da177e4 | 25 | * Changelog: |
78f81cc4 BD |
26 | * |
27 | * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels | |
28 | * 2005-03-17 0.11 support for 600e, 770x | |
29 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
30 | * support for 770e, G41 | |
31 | * G40 and G41 don't have a thinklight | |
32 | * temperatures no longer experimental | |
33 | * experimental brightness control | |
34 | * experimental volume control | |
35 | * experimental fan enable/disable | |
36 | * 2005-01-16 0.10 fix module loading on R30, R31 | |
37 | * 2005-01-16 0.9 support for 570, R30, R31 | |
38 | * ultrabay support on A22p, A3x | |
39 | * limit arg for cmos, led, beep, drop experimental status | |
40 | * more capable led control on A21e, A22p, T20-22, X20 | |
41 | * experimental temperatures and fan speed | |
42 | * experimental embedded controller register dump | |
43 | * mark more functions as __init, drop incorrect __exit | |
44 | * use MODULE_VERSION | |
45 | * thanks to Henrik Brix Andersen <brix@gentoo.org> | |
46 | * fix parameter passing on module loading | |
47 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
48 | * thanks to Jim Radford <radford@blackbean.org> | |
49 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
50 | * thanks to Chris Wright <chrisw@osdl.org> | |
51 | * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20 | |
52 | * fix led control on A21e | |
53 | * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device | |
1da177e4 LT |
54 | * 2004-10-18 0.5 thinklight support on A21e, G40, R32, T20, T21, X20 |
55 | * proc file format changed | |
56 | * video_switch command | |
57 | * experimental cmos control | |
58 | * experimental led control | |
59 | * experimental acpi sounds | |
78f81cc4 BD |
60 | * 2004-09-16 0.4 support for module parameters |
61 | * hotkey mask can be prefixed by 0x | |
62 | * video output switching | |
63 | * video expansion control | |
64 | * ultrabay eject support | |
65 | * removed lcd brightness/on/off control, didn't work | |
66 | * 2004-08-17 0.3 support for R40 | |
67 | * lcd off, brightness control | |
68 | * thinklight on/off | |
69 | * 2004-08-14 0.2 support for T series, X20 | |
70 | * bluetooth enable/disable | |
71 | * hotkey events disabled by default | |
72 | * removed fan control, currently useless | |
73 | * 2004-08-09 0.1 initial release, support for X series | |
1da177e4 LT |
74 | */ |
75 | ||
1da177e4 LT |
76 | #include <linux/kernel.h> |
77 | #include <linux/module.h> | |
78 | #include <linux/init.h> | |
79 | #include <linux/types.h> | |
49a13cd6 | 80 | #include <linux/string.h> |
1da177e4 | 81 | #include <linux/proc_fs.h> |
8acb0250 | 82 | #include <linux/backlight.h> |
1da177e4 | 83 | #include <asm/uaccess.h> |
60eb0b35 | 84 | #include <linux/dmi.h> |
16663a87 HMH |
85 | #include <linux/jiffies.h> |
86 | #include <linux/workqueue.h> | |
1da177e4 LT |
87 | |
88 | #include <acpi/acpi_drivers.h> | |
89 | #include <acpi/acnamesp.h> | |
90 | ||
91 | #define IBM_NAME "ibm" | |
92 | #define IBM_DESC "IBM ThinkPad ACPI Extras" | |
93 | #define IBM_FILE "ibm_acpi" | |
94 | #define IBM_URL "http://ibm-acpi.sf.net/" | |
95 | ||
78f81cc4 BD |
96 | MODULE_AUTHOR("Borislav Deianov"); |
97 | MODULE_DESCRIPTION(IBM_DESC); | |
98 | MODULE_VERSION(IBM_VERSION); | |
99 | MODULE_LICENSE("GPL"); | |
100 | ||
1da177e4 LT |
101 | #define IBM_DIR IBM_NAME |
102 | ||
103 | #define IBM_LOG IBM_FILE ": " | |
104 | #define IBM_ERR KERN_ERR IBM_LOG | |
105 | #define IBM_NOTICE KERN_NOTICE IBM_LOG | |
106 | #define IBM_INFO KERN_INFO IBM_LOG | |
107 | #define IBM_DEBUG KERN_DEBUG IBM_LOG | |
108 | ||
109 | #define IBM_MAX_ACPI_ARGS 3 | |
110 | ||
111 | #define __unused __attribute__ ((unused)) | |
112 | ||
113 | static int experimental; | |
114 | module_param(experimental, int, 0); | |
115 | ||
116 | static acpi_handle root_handle = NULL; | |
117 | ||
118 | #define IBM_HANDLE(object, parent, paths...) \ | |
119 | static acpi_handle object##_handle; \ | |
120 | static acpi_handle *object##_parent = &parent##_handle; \ | |
78f81cc4 | 121 | static char *object##_path; \ |
1da177e4 LT |
122 | static char *object##_paths[] = { paths } |
123 | ||
78f81cc4 BD |
124 | /* |
125 | * The following models are supported to various degrees: | |
126 | * | |
127 | * 570, 600e, 600x, 770e, 770x | |
128 | * A20m, A21e, A21m, A21p, A22p, A30, A30p, A31, A31p | |
129 | * G40, G41 | |
130 | * R30, R31, R32, R40, R40e, R50, R50e, R50p, R51 | |
131 | * T20, T21, T22, T23, T30, T40, T40p, T41, T41p, T42, T42p, T43 | |
132 | * X20, X21, X22, X23, X24, X30, X31, X40 | |
133 | * | |
134 | * The following models have no supported features: | |
135 | * | |
136 | * 240, 240x, i1400 | |
137 | * | |
138 | * Still missing DSDTs for the following models: | |
139 | * | |
140 | * A20p, A22e, A22m | |
141 | * R52 | |
142 | * S31 | |
143 | * T43p | |
144 | */ | |
145 | ||
146 | IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ | |
147 | "\\_SB.PCI.ISA.EC", /* 570 */ | |
148 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ | |
149 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ | |
150 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ | |
151 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ | |
152 | "\\_SB.PCI0.LPC.EC", /* all others */ | |
153 | ); | |
154 | ||
155 | IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ | |
156 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
157 | "\\_SB.PCI0.VID0", /* 770e */ | |
158 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
159 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
160 | ); /* R30, R31 */ | |
161 | ||
162 | IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ | |
163 | ||
164 | IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ | |
165 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ | |
166 | "\\CMS", /* R40, R40e */ | |
167 | ); /* all others */ | |
63e5f248 | 168 | #ifdef CONFIG_ACPI_IBM_DOCK |
78f81cc4 BD |
169 | IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
170 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ | |
171 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ | |
172 | "\\_SB.PCI.ISA.SLCE", /* 570 */ | |
173 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ | |
63e5f248 | 174 | #endif |
2df910b4 | 175 | #ifdef CONFIG_ACPI_IBM_BAY |
78f81cc4 BD |
176 | IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
177 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ | |
e0298997 | 178 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ |
78f81cc4 BD |
179 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ |
180 | ); /* A21e, R30, R31 */ | |
181 | ||
182 | IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ | |
183 | "_EJ0", /* all others */ | |
184 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ | |
185 | ||
186 | IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ | |
187 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ | |
188 | ); /* all others */ | |
189 | ||
190 | IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ | |
191 | "_EJ0", /* 770x */ | |
192 | ); /* all others */ | |
2df910b4 | 193 | #endif |
78f81cc4 BD |
194 | |
195 | /* don't list other alternatives as we install a notify handler on the 570 */ | |
196 | IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ | |
197 | ||
198 | IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ | |
199 | "^HKEY", /* R30, R31 */ | |
200 | "HKEY", /* all others */ | |
201 | ); /* 570 */ | |
202 | ||
203 | IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ | |
204 | IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
205 | ||
206 | IBM_HANDLE(led, ec, "SLED", /* 570 */ | |
207 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
208 | "LED", /* all others */ | |
209 | ); /* R30, R31 */ | |
210 | ||
211 | IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ | |
212 | IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ | |
213 | IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
a8b7a662 | 214 | IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
78f81cc4 BD |
215 | |
216 | IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
217 | "\\FSPD", /* 600e/x, 770e, 770x */ | |
218 | ); /* all others */ | |
219 | ||
220 | IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ | |
221 | "JFNS", /* 770x-JL */ | |
222 | ); /* all others */ | |
223 | ||
224 | #define IBM_HKEY_HID "IBM0068" | |
225 | #define IBM_PCI_HID "PNP0A03" | |
1da177e4 | 226 | |
a26f878a HMH |
227 | enum thermal_access_mode { |
228 | IBMACPI_THERMAL_NONE = 0, /* No thermal support */ | |
229 | IBMACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
230 | IBMACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
60eb0b35 HMH |
231 | IBMACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ |
232 | IBMACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
a26f878a HMH |
233 | }; |
234 | ||
60eb0b35 | 235 | #define IBMACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ |
a26f878a HMH |
236 | struct ibm_thermal_sensors_struct { |
237 | s32 temp[IBMACPI_MAX_THERMAL_SENSORS]; | |
238 | }; | |
239 | ||
a8b7a662 HMH |
240 | /* |
241 | * FAN ACCESS MODES | |
242 | * | |
243 | * IBMACPI_FAN_RD_ACPI_GFAN: | |
244 | * ACPI GFAN method: returns fan level | |
245 | * | |
246 | * see IBMACPI_FAN_WR_ACPI_SFAN | |
247 | * EC 0x2f not available if GFAN exists | |
248 | * | |
249 | * IBMACPI_FAN_WR_ACPI_SFAN: | |
250 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) | |
251 | * | |
252 | * EC 0x2f might be available *for reading*, but never for writing. | |
253 | * | |
254 | * IBMACPI_FAN_WR_TPEC: | |
255 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode Supported | |
256 | * on almost all ThinkPads | |
257 | * | |
258 | * Fan speed changes of any sort (including those caused by the | |
259 | * disengaged mode) are usually done slowly by the firmware as the | |
260 | * maximum ammount of fan duty cycle change per second seems to be | |
261 | * limited. | |
262 | * | |
263 | * Reading is not available if GFAN exists. | |
264 | * Writing is not available if SFAN exists. | |
265 | * | |
266 | * Bits | |
267 | * 7 automatic mode engaged; | |
268 | * (default operation mode of the ThinkPad) | |
269 | * fan level is ignored in this mode. | |
270 | * 6 disengage mode (takes precedence over bit 7); | |
271 | * not available on all thinkpads. May disable | |
272 | * the tachometer, and speeds up fan to 100% duty-cycle, | |
273 | * which speeds it up far above the standard RPM | |
274 | * levels. It is not impossible that it could cause | |
275 | * hardware damage. | |
276 | * 5-3 unused in some models. Extra bits for fan level | |
277 | * in others, but still useless as all values above | |
278 | * 7 map to the same speed as level 7 in these models. | |
279 | * 2-0 fan level (0..7 usually) | |
280 | * 0x00 = stop | |
281 | * 0x07 = max (set when temperatures critical) | |
282 | * Some ThinkPads may have other levels, see | |
283 | * IBMACPI_FAN_WR_ACPI_FANS (X31/X40/X41) | |
284 | * | |
285 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
286 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT | |
287 | * does so, its initial value is meaningless (0x07). | |
288 | * | |
289 | * For firmware bugs, refer to: | |
290 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
291 | * | |
292 | * ---- | |
293 | * | |
294 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
295 | * Main fan tachometer reading (in RPM) | |
296 | * | |
297 | * This register is present on all ThinkPads with a new-style EC, and | |
298 | * it is known not to be present on the A21m/e, and T22, as there is | |
299 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
300 | * ThinkPads from this same time period (and earlier) probably lack the | |
301 | * tachometer as well. | |
302 | * | |
303 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare | |
304 | * was never fixed by IBM to report the EC firmware version string | |
305 | * probably support the tachometer (like the early X models), so | |
306 | * detecting it is quite hard. We need more data to know for sure. | |
307 | * | |
308 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
309 | * might result. | |
310 | * | |
311 | * FIRMWARE BUG: when EC 0x2f bit 6 is set (disengaged mode), this | |
312 | * register is not invalidated in ThinkPads that disable tachometer | |
313 | * readings. Thus, the tachometer readings go stale. | |
314 | * | |
315 | * For firmware bugs, refer to: | |
316 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
317 | * | |
318 | * IBMACPI_FAN_WR_ACPI_FANS: | |
319 | * ThinkPad X31, X40, X41. Not available in the X60. | |
320 | * | |
321 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
322 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
323 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
324 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
325 | * | |
326 | * The speeds are stored on handles | |
327 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
328 | * | |
329 | * There are three default speed sets, acessible as handles: | |
330 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H | |
331 | * | |
332 | * ACPI DSDT switches which set is in use depending on various | |
333 | * factors. | |
334 | * | |
335 | * IBMACPI_FAN_WR_TPEC is also available and should be used to | |
336 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, | |
337 | * but the ACPI tables just mention level 7. | |
338 | */ | |
339 | ||
69ba91cb HMH |
340 | enum fan_status_access_mode { |
341 | IBMACPI_FAN_NONE = 0, /* No fan status or control */ | |
342 | IBMACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
343 | IBMACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
344 | }; | |
345 | ||
346 | enum fan_control_access_mode { | |
347 | IBMACPI_FAN_WR_NONE = 0, /* No fan control */ | |
348 | IBMACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
349 | IBMACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
350 | IBMACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
351 | }; | |
352 | ||
353 | enum fan_control_commands { | |
354 | IBMACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
355 | IBMACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
16663a87 HMH |
356 | IBMACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, |
357 | * and also watchdog cmd */ | |
69ba91cb HMH |
358 | }; |
359 | ||
360 | enum { /* Fan control constants */ | |
361 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
362 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
363 | * 0x84 must be read before 0x85 */ | |
bab812a3 HMH |
364 | |
365 | IBMACPI_FAN_EC_DISENGAGED = 0x40, /* EC mode: tachometer | |
366 | * disengaged */ | |
367 | IBMACPI_FAN_EC_AUTO = 0x80, /* EC mode: auto fan | |
368 | * control */ | |
69ba91cb HMH |
369 | }; |
370 | ||
778b4d74 | 371 | static char *ibm_thinkpad_ec_found = NULL; |
60eb0b35 | 372 | |
1da177e4 LT |
373 | struct ibm_struct { |
374 | char *name; | |
78f81cc4 | 375 | char param[32]; |
1da177e4 LT |
376 | |
377 | char *hid; | |
378 | struct acpi_driver *driver; | |
1da177e4 | 379 | |
78f81cc4 BD |
380 | int (*init) (void); |
381 | int (*read) (char *); | |
382 | int (*write) (char *); | |
383 | void (*exit) (void); | |
384 | ||
385 | void (*notify) (struct ibm_struct *, u32); | |
1da177e4 LT |
386 | acpi_handle *handle; |
387 | int type; | |
388 | struct acpi_device *device; | |
389 | ||
390 | int driver_registered; | |
391 | int proc_created; | |
392 | int init_called; | |
393 | int notify_installed; | |
394 | ||
1da177e4 LT |
395 | int experimental; |
396 | }; | |
397 | ||
398 | static struct proc_dir_entry *proc_dir = NULL; | |
399 | ||
8acb0250 HM |
400 | static struct backlight_device *ibm_backlight_device; |
401 | ||
1da177e4 LT |
402 | #define onoff(status,bit) ((status) & (1 << (bit)) ? "on" : "off") |
403 | #define enabled(status,bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
404 | #define strlencmp(a,b) (strncmp((a), (b), strlen(b))) | |
405 | ||
406 | static int acpi_evalf(acpi_handle handle, | |
407 | void *res, char *method, char *fmt, ...) | |
408 | { | |
409 | char *fmt0 = fmt; | |
78f81cc4 BD |
410 | struct acpi_object_list params; |
411 | union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; | |
412 | struct acpi_buffer result, *resultp; | |
413 | union acpi_object out_obj; | |
414 | acpi_status status; | |
415 | va_list ap; | |
416 | char res_type; | |
417 | int success; | |
418 | int quiet; | |
1da177e4 LT |
419 | |
420 | if (!*fmt) { | |
421 | printk(IBM_ERR "acpi_evalf() called with empty format\n"); | |
422 | return 0; | |
423 | } | |
424 | ||
425 | if (*fmt == 'q') { | |
426 | quiet = 1; | |
427 | fmt++; | |
428 | } else | |
429 | quiet = 0; | |
430 | ||
431 | res_type = *(fmt++); | |
432 | ||
433 | params.count = 0; | |
434 | params.pointer = &in_objs[0]; | |
435 | ||
436 | va_start(ap, fmt); | |
437 | while (*fmt) { | |
438 | char c = *(fmt++); | |
439 | switch (c) { | |
440 | case 'd': /* int */ | |
441 | in_objs[params.count].integer.value = va_arg(ap, int); | |
442 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
443 | break; | |
78f81cc4 | 444 | /* add more types as needed */ |
1da177e4 LT |
445 | default: |
446 | printk(IBM_ERR "acpi_evalf() called " | |
447 | "with invalid format character '%c'\n", c); | |
448 | return 0; | |
449 | } | |
450 | } | |
451 | va_end(ap); | |
452 | ||
78f81cc4 BD |
453 | if (res_type != 'v') { |
454 | result.length = sizeof(out_obj); | |
455 | result.pointer = &out_obj; | |
456 | resultp = &result; | |
457 | } else | |
458 | resultp = NULL; | |
1da177e4 | 459 | |
78f81cc4 | 460 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
461 | |
462 | switch (res_type) { | |
78f81cc4 | 463 | case 'd': /* int */ |
1da177e4 LT |
464 | if (res) |
465 | *(int *)res = out_obj.integer.value; | |
466 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; | |
467 | break; | |
78f81cc4 | 468 | case 'v': /* void */ |
1da177e4 LT |
469 | success = status == AE_OK; |
470 | break; | |
78f81cc4 | 471 | /* add more types as needed */ |
1da177e4 LT |
472 | default: |
473 | printk(IBM_ERR "acpi_evalf() called " | |
474 | "with invalid format character '%c'\n", res_type); | |
475 | return 0; | |
476 | } | |
477 | ||
478 | if (!success && !quiet) | |
479 | printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", | |
480 | method, fmt0, status); | |
481 | ||
482 | return success; | |
483 | } | |
484 | ||
485 | static void __unused acpi_print_int(acpi_handle handle, char *method) | |
486 | { | |
487 | int i; | |
488 | ||
489 | if (acpi_evalf(handle, &i, method, "d")) | |
490 | printk(IBM_INFO "%s = 0x%x\n", method, i); | |
491 | else | |
492 | printk(IBM_ERR "error calling %s\n", method); | |
493 | } | |
494 | ||
495 | static char *next_cmd(char **cmds) | |
496 | { | |
497 | char *start = *cmds; | |
498 | char *end; | |
499 | ||
500 | while ((end = strchr(start, ',')) && end == start) | |
501 | start = end + 1; | |
502 | ||
503 | if (!end) | |
504 | return NULL; | |
505 | ||
506 | *end = 0; | |
507 | *cmds = end + 1; | |
508 | return start; | |
509 | } | |
510 | ||
78f81cc4 | 511 | static int driver_init(void) |
1da177e4 LT |
512 | { |
513 | printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); | |
514 | printk(IBM_INFO "%s\n", IBM_URL); | |
515 | ||
516 | return 0; | |
517 | } | |
518 | ||
78f81cc4 | 519 | static int driver_read(char *p) |
1da177e4 LT |
520 | { |
521 | int len = 0; | |
522 | ||
523 | len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); | |
524 | len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); | |
525 | ||
526 | return len; | |
527 | } | |
528 | ||
78f81cc4 BD |
529 | static int hotkey_supported; |
530 | static int hotkey_mask_supported; | |
531 | static int hotkey_orig_status; | |
532 | static int hotkey_orig_mask; | |
533 | ||
534 | static int hotkey_get(int *status, int *mask) | |
1da177e4 LT |
535 | { |
536 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
78f81cc4 BD |
537 | return 0; |
538 | ||
539 | if (hotkey_mask_supported) | |
540 | if (!acpi_evalf(hkey_handle, mask, "DHKN", "d")) | |
541 | return 0; | |
542 | ||
543 | return 1; | |
1da177e4 LT |
544 | } |
545 | ||
78f81cc4 | 546 | static int hotkey_set(int status, int mask) |
1da177e4 LT |
547 | { |
548 | int i; | |
549 | ||
550 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) | |
1da177e4 LT |
551 | return 0; |
552 | ||
78f81cc4 BD |
553 | if (hotkey_mask_supported) |
554 | for (i = 0; i < 32; i++) { | |
555 | int bit = ((1 << i) & mask) != 0; | |
556 | if (!acpi_evalf(hkey_handle, | |
557 | NULL, "MHKM", "vdd", i + 1, bit)) | |
558 | return 0; | |
559 | } | |
1da177e4 | 560 | |
78f81cc4 | 561 | return 1; |
1da177e4 LT |
562 | } |
563 | ||
78f81cc4 | 564 | static int hotkey_init(void) |
1da177e4 | 565 | { |
78f81cc4 BD |
566 | /* hotkey not supported on 570 */ |
567 | hotkey_supported = hkey_handle != NULL; | |
1da177e4 | 568 | |
78f81cc4 BD |
569 | if (hotkey_supported) { |
570 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, | |
571 | A30, R30, R31, T20-22, X20-21, X22-24 */ | |
572 | hotkey_mask_supported = | |
573 | acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); | |
574 | ||
575 | if (!hotkey_get(&hotkey_orig_status, &hotkey_orig_mask)) | |
576 | return -ENODEV; | |
1da177e4 LT |
577 | } |
578 | ||
78f81cc4 BD |
579 | return 0; |
580 | } | |
1da177e4 | 581 | |
78f81cc4 | 582 | static int hotkey_read(char *p) |
1da177e4 LT |
583 | { |
584 | int status, mask; | |
585 | int len = 0; | |
586 | ||
78f81cc4 BD |
587 | if (!hotkey_supported) { |
588 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
589 | return len; | |
590 | } | |
591 | ||
592 | if (!hotkey_get(&status, &mask)) | |
1da177e4 LT |
593 | return -EIO; |
594 | ||
595 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); | |
78f81cc4 | 596 | if (hotkey_mask_supported) { |
1da177e4 LT |
597 | len += sprintf(p + len, "mask:\t\t0x%04x\n", mask); |
598 | len += sprintf(p + len, | |
599 | "commands:\tenable, disable, reset, <mask>\n"); | |
600 | } else { | |
601 | len += sprintf(p + len, "mask:\t\tnot supported\n"); | |
602 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); | |
603 | } | |
604 | ||
605 | return len; | |
606 | } | |
607 | ||
78f81cc4 | 608 | static int hotkey_write(char *buf) |
1da177e4 LT |
609 | { |
610 | int status, mask; | |
611 | char *cmd; | |
612 | int do_cmd = 0; | |
613 | ||
78f81cc4 | 614 | if (!hotkey_supported) |
1da177e4 LT |
615 | return -ENODEV; |
616 | ||
78f81cc4 BD |
617 | if (!hotkey_get(&status, &mask)) |
618 | return -EIO; | |
619 | ||
1da177e4 LT |
620 | while ((cmd = next_cmd(&buf))) { |
621 | if (strlencmp(cmd, "enable") == 0) { | |
622 | status = 1; | |
623 | } else if (strlencmp(cmd, "disable") == 0) { | |
624 | status = 0; | |
625 | } else if (strlencmp(cmd, "reset") == 0) { | |
78f81cc4 BD |
626 | status = hotkey_orig_status; |
627 | mask = hotkey_orig_mask; | |
1da177e4 LT |
628 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
629 | /* mask set */ | |
630 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
631 | /* mask set */ | |
632 | } else | |
633 | return -EINVAL; | |
634 | do_cmd = 1; | |
635 | } | |
636 | ||
78f81cc4 | 637 | if (do_cmd && !hotkey_set(status, mask)) |
1da177e4 LT |
638 | return -EIO; |
639 | ||
640 | return 0; | |
78f81cc4 | 641 | } |
1da177e4 | 642 | |
78f81cc4 | 643 | static void hotkey_exit(void) |
1da177e4 | 644 | { |
78f81cc4 BD |
645 | if (hotkey_supported) |
646 | hotkey_set(hotkey_orig_status, hotkey_orig_mask); | |
1da177e4 LT |
647 | } |
648 | ||
649 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) | |
650 | { | |
651 | int hkey; | |
652 | ||
653 | if (acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) | |
654 | acpi_bus_generate_event(ibm->device, event, hkey); | |
655 | else { | |
656 | printk(IBM_ERR "unknown hotkey event %d\n", event); | |
657 | acpi_bus_generate_event(ibm->device, event, 0); | |
78f81cc4 | 658 | } |
1da177e4 LT |
659 | } |
660 | ||
78f81cc4 BD |
661 | static int bluetooth_supported; |
662 | ||
663 | static int bluetooth_init(void) | |
1da177e4 | 664 | { |
78f81cc4 BD |
665 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
666 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
667 | bluetooth_supported = hkey_handle && | |
668 | acpi_evalf(hkey_handle, NULL, "GBDC", "qv"); | |
1da177e4 LT |
669 | |
670 | return 0; | |
671 | } | |
672 | ||
78f81cc4 | 673 | static int bluetooth_status(void) |
1da177e4 LT |
674 | { |
675 | int status; | |
676 | ||
78f81cc4 BD |
677 | if (!bluetooth_supported || |
678 | !acpi_evalf(hkey_handle, &status, "GBDC", "d")) | |
1da177e4 LT |
679 | status = 0; |
680 | ||
681 | return status; | |
682 | } | |
683 | ||
78f81cc4 | 684 | static int bluetooth_read(char *p) |
1da177e4 LT |
685 | { |
686 | int len = 0; | |
78f81cc4 | 687 | int status = bluetooth_status(); |
1da177e4 | 688 | |
78f81cc4 | 689 | if (!bluetooth_supported) |
1da177e4 LT |
690 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
691 | else if (!(status & 1)) | |
692 | len += sprintf(p + len, "status:\t\tnot installed\n"); | |
693 | else { | |
694 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 1)); | |
695 | len += sprintf(p + len, "commands:\tenable, disable\n"); | |
696 | } | |
697 | ||
698 | return len; | |
699 | } | |
700 | ||
78f81cc4 | 701 | static int bluetooth_write(char *buf) |
1da177e4 | 702 | { |
78f81cc4 | 703 | int status = bluetooth_status(); |
1da177e4 LT |
704 | char *cmd; |
705 | int do_cmd = 0; | |
706 | ||
78f81cc4 BD |
707 | if (!bluetooth_supported) |
708 | return -ENODEV; | |
1da177e4 LT |
709 | |
710 | while ((cmd = next_cmd(&buf))) { | |
711 | if (strlencmp(cmd, "enable") == 0) { | |
712 | status |= 2; | |
713 | } else if (strlencmp(cmd, "disable") == 0) { | |
714 | status &= ~2; | |
715 | } else | |
716 | return -EINVAL; | |
717 | do_cmd = 1; | |
718 | } | |
719 | ||
720 | if (do_cmd && !acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) | |
78f81cc4 | 721 | return -EIO; |
1da177e4 LT |
722 | |
723 | return 0; | |
724 | } | |
725 | ||
42adb53c JF |
726 | static int wan_supported; |
727 | ||
728 | static int wan_init(void) | |
729 | { | |
730 | wan_supported = hkey_handle && | |
731 | acpi_evalf(hkey_handle, NULL, "GWAN", "qv"); | |
732 | ||
733 | return 0; | |
734 | } | |
735 | ||
736 | static int wan_status(void) | |
737 | { | |
738 | int status; | |
739 | ||
8d297264 | 740 | if (!wan_supported || !acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
42adb53c JF |
741 | status = 0; |
742 | ||
743 | return status; | |
744 | } | |
745 | ||
746 | static int wan_read(char *p) | |
747 | { | |
748 | int len = 0; | |
749 | int status = wan_status(); | |
750 | ||
751 | if (!wan_supported) | |
752 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
753 | else if (!(status & 1)) | |
754 | len += sprintf(p + len, "status:\t\tnot installed\n"); | |
755 | else { | |
756 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 1)); | |
757 | len += sprintf(p + len, "commands:\tenable, disable\n"); | |
758 | } | |
759 | ||
760 | return len; | |
761 | } | |
762 | ||
763 | static int wan_write(char *buf) | |
764 | { | |
765 | int status = wan_status(); | |
766 | char *cmd; | |
767 | int do_cmd = 0; | |
768 | ||
769 | if (!wan_supported) | |
770 | return -ENODEV; | |
771 | ||
772 | while ((cmd = next_cmd(&buf))) { | |
773 | if (strlencmp(cmd, "enable") == 0) { | |
774 | status |= 2; | |
775 | } else if (strlencmp(cmd, "disable") == 0) { | |
776 | status &= ~2; | |
777 | } else | |
778 | return -EINVAL; | |
779 | do_cmd = 1; | |
780 | } | |
781 | ||
782 | if (do_cmd && !acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) | |
783 | return -EIO; | |
784 | ||
785 | return 0; | |
786 | } | |
787 | ||
78f81cc4 BD |
788 | static int video_supported; |
789 | static int video_orig_autosw; | |
790 | ||
791 | #define VIDEO_570 1 | |
792 | #define VIDEO_770 2 | |
793 | #define VIDEO_NEW 3 | |
794 | ||
795 | static int video_init(void) | |
1da177e4 | 796 | { |
78f81cc4 BD |
797 | int ivga; |
798 | ||
799 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) | |
800 | /* G41, assume IVGA doesn't change */ | |
801 | vid_handle = vid2_handle; | |
802 | ||
803 | if (!vid_handle) | |
804 | /* video switching not supported on R30, R31 */ | |
805 | video_supported = 0; | |
806 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) | |
807 | /* 570 */ | |
808 | video_supported = VIDEO_570; | |
809 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) | |
810 | /* 600e/x, 770e, 770x */ | |
811 | video_supported = VIDEO_770; | |
812 | else | |
813 | /* all others */ | |
814 | video_supported = VIDEO_NEW; | |
1da177e4 LT |
815 | |
816 | return 0; | |
817 | } | |
818 | ||
78f81cc4 | 819 | static int video_status(void) |
1da177e4 LT |
820 | { |
821 | int status = 0; | |
822 | int i; | |
823 | ||
78f81cc4 BD |
824 | if (video_supported == VIDEO_570) { |
825 | if (acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", 0x87)) | |
826 | status = i & 3; | |
827 | } else if (video_supported == VIDEO_770) { | |
828 | if (acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
829 | status |= 0x01 * i; | |
830 | if (acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
831 | status |= 0x02 * i; | |
832 | } else if (video_supported == VIDEO_NEW) { | |
833 | acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1); | |
834 | if (acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
835 | status |= 0x02 * i; | |
836 | ||
837 | acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0); | |
838 | if (acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
839 | status |= 0x01 * i; | |
840 | if (acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
841 | status |= 0x08 * i; | |
842 | } | |
843 | ||
844 | return status; | |
845 | } | |
1da177e4 | 846 | |
78f81cc4 BD |
847 | static int video_autosw(void) |
848 | { | |
849 | int autosw = 0; | |
1da177e4 | 850 | |
78f81cc4 BD |
851 | if (video_supported == VIDEO_570) |
852 | acpi_evalf(vid_handle, &autosw, "SWIT", "d"); | |
853 | else if (video_supported == VIDEO_770 || video_supported == VIDEO_NEW) | |
854 | acpi_evalf(vid_handle, &autosw, "^VDEE", "d"); | |
1da177e4 | 855 | |
78f81cc4 | 856 | return autosw & 1; |
1da177e4 LT |
857 | } |
858 | ||
78f81cc4 | 859 | static int video_read(char *p) |
1da177e4 | 860 | { |
78f81cc4 BD |
861 | int status = video_status(); |
862 | int autosw = video_autosw(); | |
1da177e4 LT |
863 | int len = 0; |
864 | ||
78f81cc4 BD |
865 | if (!video_supported) { |
866 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
867 | return len; | |
868 | } | |
869 | ||
870 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
1da177e4 LT |
871 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); |
872 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); | |
78f81cc4 BD |
873 | if (video_supported == VIDEO_NEW) |
874 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); | |
875 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); | |
876 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); | |
877 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); | |
878 | if (video_supported == VIDEO_NEW) | |
879 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); | |
880 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); | |
1da177e4 LT |
881 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); |
882 | ||
883 | return len; | |
884 | } | |
885 | ||
78f81cc4 BD |
886 | static int video_switch(void) |
887 | { | |
888 | int autosw = video_autosw(); | |
889 | int ret; | |
890 | ||
891 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) | |
892 | return -EIO; | |
893 | ret = video_supported == VIDEO_570 ? | |
894 | acpi_evalf(ec_handle, NULL, "_Q16", "v") : | |
895 | acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
896 | acpi_evalf(vid_handle, NULL, "_DOS", "vd", autosw); | |
897 | ||
898 | return ret; | |
899 | } | |
900 | ||
901 | static int video_expand(void) | |
902 | { | |
903 | if (video_supported == VIDEO_570) | |
904 | return acpi_evalf(ec_handle, NULL, "_Q17", "v"); | |
905 | else if (video_supported == VIDEO_770) | |
906 | return acpi_evalf(vid_handle, NULL, "VEXP", "v"); | |
907 | else | |
908 | return acpi_evalf(NULL, NULL, "\\VEXP", "v"); | |
909 | } | |
910 | ||
911 | static int video_switch2(int status) | |
912 | { | |
913 | int ret; | |
914 | ||
915 | if (video_supported == VIDEO_570) { | |
916 | ret = acpi_evalf(NULL, NULL, | |
917 | "\\_SB.PHS2", "vdd", 0x8b, status | 0x80); | |
918 | } else if (video_supported == VIDEO_770) { | |
919 | int autosw = video_autosw(); | |
920 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) | |
921 | return -EIO; | |
922 | ||
923 | ret = acpi_evalf(vid_handle, NULL, | |
924 | "ASWT", "vdd", status * 0x100, 0); | |
925 | ||
926 | acpi_evalf(vid_handle, NULL, "_DOS", "vd", autosw); | |
927 | } else { | |
928 | ret = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
929 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); | |
930 | } | |
931 | ||
932 | return ret; | |
933 | } | |
934 | ||
935 | static int video_write(char *buf) | |
1da177e4 LT |
936 | { |
937 | char *cmd; | |
938 | int enable, disable, status; | |
939 | ||
78f81cc4 BD |
940 | if (!video_supported) |
941 | return -ENODEV; | |
942 | ||
1da177e4 LT |
943 | enable = disable = 0; |
944 | ||
945 | while ((cmd = next_cmd(&buf))) { | |
946 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
947 | enable |= 0x01; | |
948 | } else if (strlencmp(cmd, "lcd_disable") == 0) { | |
949 | disable |= 0x01; | |
950 | } else if (strlencmp(cmd, "crt_enable") == 0) { | |
951 | enable |= 0x02; | |
952 | } else if (strlencmp(cmd, "crt_disable") == 0) { | |
953 | disable |= 0x02; | |
78f81cc4 BD |
954 | } else if (video_supported == VIDEO_NEW && |
955 | strlencmp(cmd, "dvi_enable") == 0) { | |
1da177e4 | 956 | enable |= 0x08; |
78f81cc4 BD |
957 | } else if (video_supported == VIDEO_NEW && |
958 | strlencmp(cmd, "dvi_disable") == 0) { | |
1da177e4 LT |
959 | disable |= 0x08; |
960 | } else if (strlencmp(cmd, "auto_enable") == 0) { | |
961 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) | |
962 | return -EIO; | |
963 | } else if (strlencmp(cmd, "auto_disable") == 0) { | |
964 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 0)) | |
965 | return -EIO; | |
966 | } else if (strlencmp(cmd, "video_switch") == 0) { | |
78f81cc4 | 967 | if (!video_switch()) |
1da177e4 LT |
968 | return -EIO; |
969 | } else if (strlencmp(cmd, "expand_toggle") == 0) { | |
78f81cc4 | 970 | if (!video_expand()) |
1da177e4 LT |
971 | return -EIO; |
972 | } else | |
973 | return -EINVAL; | |
974 | } | |
975 | ||
976 | if (enable || disable) { | |
78f81cc4 BD |
977 | status = (video_status() & 0x0f & ~disable) | enable; |
978 | if (!video_switch2(status)) | |
1da177e4 LT |
979 | return -EIO; |
980 | } | |
981 | ||
982 | return 0; | |
983 | } | |
984 | ||
78f81cc4 | 985 | static void video_exit(void) |
1da177e4 | 986 | { |
78f81cc4 | 987 | acpi_evalf(vid_handle, NULL, "_DOS", "vd", video_orig_autosw); |
1da177e4 LT |
988 | } |
989 | ||
78f81cc4 BD |
990 | static int light_supported; |
991 | static int light_status_supported; | |
992 | ||
993 | static int light_init(void) | |
1da177e4 | 994 | { |
78f81cc4 BD |
995 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
996 | light_supported = (cmos_handle || lght_handle) && !ledb_handle; | |
997 | ||
998 | if (light_supported) | |
999 | /* light status not supported on | |
1000 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
1001 | light_status_supported = acpi_evalf(ec_handle, NULL, | |
1002 | "KBLT", "qv"); | |
1da177e4 LT |
1003 | |
1004 | return 0; | |
1005 | } | |
1006 | ||
78f81cc4 | 1007 | static int light_read(char *p) |
1da177e4 LT |
1008 | { |
1009 | int len = 0; | |
1010 | int status = 0; | |
1011 | ||
78f81cc4 BD |
1012 | if (!light_supported) { |
1013 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1014 | } else if (!light_status_supported) { | |
1015 | len += sprintf(p + len, "status:\t\tunknown\n"); | |
1016 | len += sprintf(p + len, "commands:\ton, off\n"); | |
1017 | } else { | |
1da177e4 LT |
1018 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
1019 | return -EIO; | |
1020 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); | |
78f81cc4 BD |
1021 | len += sprintf(p + len, "commands:\ton, off\n"); |
1022 | } | |
1da177e4 LT |
1023 | |
1024 | return len; | |
1025 | } | |
1026 | ||
78f81cc4 | 1027 | static int light_write(char *buf) |
1da177e4 LT |
1028 | { |
1029 | int cmos_cmd, lght_cmd; | |
1030 | char *cmd; | |
1031 | int success; | |
78f81cc4 BD |
1032 | |
1033 | if (!light_supported) | |
1034 | return -ENODEV; | |
1035 | ||
1da177e4 LT |
1036 | while ((cmd = next_cmd(&buf))) { |
1037 | if (strlencmp(cmd, "on") == 0) { | |
1038 | cmos_cmd = 0x0c; | |
1039 | lght_cmd = 1; | |
1040 | } else if (strlencmp(cmd, "off") == 0) { | |
1041 | cmos_cmd = 0x0d; | |
1042 | lght_cmd = 0; | |
1043 | } else | |
1044 | return -EINVAL; | |
78f81cc4 | 1045 | |
1da177e4 | 1046 | success = cmos_handle ? |
78f81cc4 BD |
1047 | acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : |
1048 | acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); | |
1da177e4 LT |
1049 | if (!success) |
1050 | return -EIO; | |
1051 | } | |
1052 | ||
1053 | return 0; | |
1054 | } | |
1055 | ||
2df910b4 | 1056 | #if defined(CONFIG_ACPI_IBM_DOCK) || defined(CONFIG_ACPI_IBM_BAY) |
1da177e4 LT |
1057 | static int _sta(acpi_handle handle) |
1058 | { | |
1059 | int status; | |
1060 | ||
1061 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) | |
1062 | status = 0; | |
1063 | ||
1064 | return status; | |
1065 | } | |
2df910b4 | 1066 | #endif |
63e5f248 | 1067 | #ifdef CONFIG_ACPI_IBM_DOCK |
1da177e4 LT |
1068 | #define dock_docked() (_sta(dock_handle) & 1) |
1069 | ||
78f81cc4 | 1070 | static int dock_read(char *p) |
1da177e4 LT |
1071 | { |
1072 | int len = 0; | |
1073 | int docked = dock_docked(); | |
1074 | ||
1075 | if (!dock_handle) | |
1076 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1077 | else if (!docked) | |
1078 | len += sprintf(p + len, "status:\t\tundocked\n"); | |
1079 | else { | |
1080 | len += sprintf(p + len, "status:\t\tdocked\n"); | |
1081 | len += sprintf(p + len, "commands:\tdock, undock\n"); | |
1082 | } | |
1083 | ||
1084 | return len; | |
1085 | } | |
1086 | ||
78f81cc4 | 1087 | static int dock_write(char *buf) |
1da177e4 LT |
1088 | { |
1089 | char *cmd; | |
1090 | ||
1091 | if (!dock_docked()) | |
78f81cc4 | 1092 | return -ENODEV; |
1da177e4 LT |
1093 | |
1094 | while ((cmd = next_cmd(&buf))) { | |
1095 | if (strlencmp(cmd, "undock") == 0) { | |
78f81cc4 BD |
1096 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
1097 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) | |
1da177e4 LT |
1098 | return -EIO; |
1099 | } else if (strlencmp(cmd, "dock") == 0) { | |
1100 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) | |
1101 | return -EIO; | |
1102 | } else | |
1103 | return -EINVAL; | |
1104 | } | |
1105 | ||
1106 | return 0; | |
78f81cc4 | 1107 | } |
1da177e4 LT |
1108 | |
1109 | static void dock_notify(struct ibm_struct *ibm, u32 event) | |
1110 | { | |
1111 | int docked = dock_docked(); | |
78f81cc4 BD |
1112 | int pci = ibm->hid && strstr(ibm->hid, IBM_PCI_HID); |
1113 | ||
1114 | if (event == 1 && !pci) /* 570 */ | |
1115 | acpi_bus_generate_event(ibm->device, event, 1); /* button */ | |
1116 | else if (event == 1 && pci) /* 570 */ | |
1117 | acpi_bus_generate_event(ibm->device, event, 3); /* dock */ | |
1118 | else if (event == 3 && docked) | |
1119 | acpi_bus_generate_event(ibm->device, event, 1); /* button */ | |
1da177e4 | 1120 | else if (event == 3 && !docked) |
78f81cc4 | 1121 | acpi_bus_generate_event(ibm->device, event, 2); /* undock */ |
1da177e4 | 1122 | else if (event == 0 && docked) |
78f81cc4 | 1123 | acpi_bus_generate_event(ibm->device, event, 3); /* dock */ |
1da177e4 LT |
1124 | else { |
1125 | printk(IBM_ERR "unknown dock event %d, status %d\n", | |
1126 | event, _sta(dock_handle)); | |
78f81cc4 | 1127 | acpi_bus_generate_event(ibm->device, event, 0); /* unknown */ |
1da177e4 LT |
1128 | } |
1129 | } | |
63e5f248 | 1130 | #endif |
1da177e4 | 1131 | |
2df910b4 | 1132 | #ifdef CONFIG_ACPI_IBM_BAY |
78f81cc4 BD |
1133 | static int bay_status_supported; |
1134 | static int bay_status2_supported; | |
1135 | static int bay_eject_supported; | |
1136 | static int bay_eject2_supported; | |
1da177e4 | 1137 | |
78f81cc4 | 1138 | static int bay_init(void) |
1da177e4 | 1139 | { |
78f81cc4 BD |
1140 | bay_status_supported = bay_handle && |
1141 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); | |
1142 | bay_status2_supported = bay2_handle && | |
1143 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); | |
1144 | ||
1145 | bay_eject_supported = bay_handle && bay_ej_handle && | |
1146 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); | |
1147 | bay_eject2_supported = bay2_handle && bay2_ej_handle && | |
1148 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); | |
1da177e4 LT |
1149 | |
1150 | return 0; | |
1151 | } | |
1152 | ||
78f81cc4 BD |
1153 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
1154 | ||
1155 | static int bay_read(char *p) | |
1da177e4 LT |
1156 | { |
1157 | int len = 0; | |
78f81cc4 BD |
1158 | int occupied = bay_occupied(bay); |
1159 | int occupied2 = bay_occupied(bay2); | |
1160 | int eject, eject2; | |
1161 | ||
1162 | len += sprintf(p + len, "status:\t\t%s\n", bay_status_supported ? | |
1163 | (occupied ? "occupied" : "unoccupied") : | |
1164 | "not supported"); | |
1165 | if (bay_status2_supported) | |
1166 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? | |
1167 | "occupied" : "unoccupied"); | |
1168 | ||
1169 | eject = bay_eject_supported && occupied; | |
1170 | eject2 = bay_eject2_supported && occupied2; | |
1171 | ||
1172 | if (eject && eject2) | |
1173 | len += sprintf(p + len, "commands:\teject, eject2\n"); | |
1174 | else if (eject) | |
1da177e4 | 1175 | len += sprintf(p + len, "commands:\teject\n"); |
78f81cc4 BD |
1176 | else if (eject2) |
1177 | len += sprintf(p + len, "commands:\teject2\n"); | |
1da177e4 LT |
1178 | |
1179 | return len; | |
1180 | } | |
1181 | ||
78f81cc4 | 1182 | static int bay_write(char *buf) |
1da177e4 LT |
1183 | { |
1184 | char *cmd; | |
1185 | ||
78f81cc4 BD |
1186 | if (!bay_eject_supported && !bay_eject2_supported) |
1187 | return -ENODEV; | |
1188 | ||
1da177e4 | 1189 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 BD |
1190 | if (bay_eject_supported && strlencmp(cmd, "eject") == 0) { |
1191 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) | |
1192 | return -EIO; | |
1193 | } else if (bay_eject2_supported && | |
1194 | strlencmp(cmd, "eject2") == 0) { | |
1195 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) | |
1da177e4 LT |
1196 | return -EIO; |
1197 | } else | |
1198 | return -EINVAL; | |
1199 | } | |
1200 | ||
1201 | return 0; | |
78f81cc4 | 1202 | } |
1da177e4 LT |
1203 | |
1204 | static void bay_notify(struct ibm_struct *ibm, u32 event) | |
1205 | { | |
1206 | acpi_bus_generate_event(ibm->device, event, 0); | |
1207 | } | |
2df910b4 | 1208 | #endif |
1da177e4 | 1209 | |
78f81cc4 | 1210 | static int cmos_read(char *p) |
1da177e4 LT |
1211 | { |
1212 | int len = 0; | |
1213 | ||
78f81cc4 BD |
1214 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
1215 | R30, R31, T20-22, X20-21 */ | |
1da177e4 LT |
1216 | if (!cmos_handle) |
1217 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1218 | else { | |
1219 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
78f81cc4 | 1220 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
1da177e4 LT |
1221 | } |
1222 | ||
1223 | return len; | |
1224 | } | |
1225 | ||
78f81cc4 BD |
1226 | static int cmos_eval(int cmos_cmd) |
1227 | { | |
1228 | if (cmos_handle) | |
1229 | return acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd); | |
1230 | else | |
1231 | return 1; | |
1232 | } | |
1233 | ||
1234 | static int cmos_write(char *buf) | |
1da177e4 LT |
1235 | { |
1236 | char *cmd; | |
1237 | int cmos_cmd; | |
1238 | ||
1239 | if (!cmos_handle) | |
1240 | return -EINVAL; | |
1241 | ||
1242 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
1243 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
1244 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
1245 | /* cmos_cmd set */ |
1246 | } else | |
1247 | return -EINVAL; | |
1248 | ||
78f81cc4 | 1249 | if (!cmos_eval(cmos_cmd)) |
1da177e4 LT |
1250 | return -EIO; |
1251 | } | |
1252 | ||
1253 | return 0; | |
78f81cc4 BD |
1254 | } |
1255 | ||
1256 | static int led_supported; | |
1257 | ||
1258 | #define LED_570 1 | |
1259 | #define LED_OLD 2 | |
1260 | #define LED_NEW 3 | |
1261 | ||
1262 | static int led_init(void) | |
1263 | { | |
1264 | if (!led_handle) | |
1265 | /* led not supported on R30, R31 */ | |
1266 | led_supported = 0; | |
1267 | else if (strlencmp(led_path, "SLED") == 0) | |
1268 | /* 570 */ | |
1269 | led_supported = LED_570; | |
1270 | else if (strlencmp(led_path, "SYSL") == 0) | |
1271 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
1272 | led_supported = LED_OLD; | |
1273 | else | |
1274 | /* all others */ | |
1275 | led_supported = LED_NEW; | |
1276 | ||
1277 | return 0; | |
1278 | } | |
1279 | ||
1280 | #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) | |
1281 | ||
1282 | static int led_read(char *p) | |
1da177e4 LT |
1283 | { |
1284 | int len = 0; | |
1285 | ||
78f81cc4 BD |
1286 | if (!led_supported) { |
1287 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1288 | return len; | |
1289 | } | |
1290 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
1291 | ||
1292 | if (led_supported == LED_570) { | |
1293 | /* 570 */ | |
1294 | int i, status; | |
1295 | for (i = 0; i < 8; i++) { | |
1296 | if (!acpi_evalf(ec_handle, | |
1297 | &status, "GLED", "dd", 1 << i)) | |
1298 | return -EIO; | |
1299 | len += sprintf(p + len, "%d:\t\t%s\n", | |
1300 | i, led_status(status)); | |
1301 | } | |
1302 | } | |
1303 | ||
1da177e4 | 1304 | len += sprintf(p + len, "commands:\t" |
78f81cc4 | 1305 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
1da177e4 LT |
1306 | |
1307 | return len; | |
1308 | } | |
1309 | ||
78f81cc4 BD |
1310 | /* off, on, blink */ |
1311 | static const int led_sled_arg1[] = { 0, 1, 3 }; | |
1312 | static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ | |
1313 | static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ | |
1314 | static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
1315 | ||
1316 | #define EC_HLCL 0x0c | |
1317 | #define EC_HLBL 0x0d | |
1318 | #define EC_HLMS 0x0e | |
1319 | ||
1320 | static int led_write(char *buf) | |
1da177e4 LT |
1321 | { |
1322 | char *cmd; | |
78f81cc4 BD |
1323 | int led, ind, ret; |
1324 | ||
1325 | if (!led_supported) | |
1326 | return -ENODEV; | |
1da177e4 LT |
1327 | |
1328 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 | 1329 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
1da177e4 LT |
1330 | return -EINVAL; |
1331 | ||
78f81cc4 BD |
1332 | if (strstr(cmd, "off")) { |
1333 | ind = 0; | |
1da177e4 | 1334 | } else if (strstr(cmd, "on")) { |
78f81cc4 BD |
1335 | ind = 1; |
1336 | } else if (strstr(cmd, "blink")) { | |
1337 | ind = 2; | |
1da177e4 LT |
1338 | } else |
1339 | return -EINVAL; | |
78f81cc4 BD |
1340 | |
1341 | if (led_supported == LED_570) { | |
1342 | /* 570 */ | |
1343 | led = 1 << led; | |
1da177e4 | 1344 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
78f81cc4 | 1345 | led, led_sled_arg1[ind])) |
1da177e4 | 1346 | return -EIO; |
78f81cc4 BD |
1347 | } else if (led_supported == LED_OLD) { |
1348 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ | |
1349 | led = 1 << led; | |
1350 | ret = ec_write(EC_HLMS, led); | |
1351 | if (ret >= 0) | |
1352 | ret = | |
1353 | ec_write(EC_HLBL, led * led_exp_hlbl[ind]); | |
1354 | if (ret >= 0) | |
1355 | ret = | |
1356 | ec_write(EC_HLCL, led * led_exp_hlcl[ind]); | |
1357 | if (ret < 0) | |
1358 | return ret; | |
1359 | } else { | |
1360 | /* all others */ | |
1361 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", | |
1362 | led, led_led_arg1[ind])) | |
1da177e4 | 1363 | return -EIO; |
78f81cc4 BD |
1364 | } |
1365 | } | |
1366 | ||
1367 | return 0; | |
1368 | } | |
1369 | ||
1370 | static int beep_read(char *p) | |
1371 | { | |
1372 | int len = 0; | |
1373 | ||
1374 | if (!beep_handle) | |
1375 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
1376 | else { | |
1377 | len += sprintf(p + len, "status:\t\tsupported\n"); | |
1378 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
1379 | } | |
1380 | ||
1381 | return len; | |
1382 | } | |
1383 | ||
1384 | static int beep_write(char *buf) | |
1385 | { | |
1386 | char *cmd; | |
1387 | int beep_cmd; | |
1388 | ||
1389 | if (!beep_handle) | |
1390 | return -ENODEV; | |
1391 | ||
1392 | while ((cmd = next_cmd(&buf))) { | |
1393 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
1394 | beep_cmd >= 0 && beep_cmd <= 17) { | |
1395 | /* beep_cmd set */ | |
1396 | } else | |
1397 | return -EINVAL; | |
1398 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) | |
1399 | return -EIO; | |
1400 | } | |
1401 | ||
1402 | return 0; | |
1403 | } | |
1404 | ||
1405 | static int acpi_ec_read(int i, u8 * p) | |
1406 | { | |
1407 | int v; | |
1408 | ||
1409 | if (ecrd_handle) { | |
1410 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
1411 | return 0; | |
1412 | *p = v; | |
1413 | } else { | |
1414 | if (ec_read(i, p) < 0) | |
1415 | return 0; | |
1416 | } | |
1417 | ||
1418 | return 1; | |
1419 | } | |
1420 | ||
1421 | static int acpi_ec_write(int i, u8 v) | |
1422 | { | |
1423 | if (ecwr_handle) { | |
1424 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
1425 | return 0; | |
1426 | } else { | |
1427 | if (ec_write(i, v) < 0) | |
1428 | return 0; | |
1429 | } | |
1430 | ||
1431 | return 1; | |
1432 | } | |
1433 | ||
a26f878a | 1434 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 BD |
1435 | |
1436 | static int thermal_init(void) | |
1437 | { | |
60eb0b35 HMH |
1438 | u8 t, ta1, ta2; |
1439 | int i; | |
1440 | int acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); | |
1441 | ||
1442 | if (ibm_thinkpad_ec_found && experimental) { | |
1443 | /* | |
1444 | * Direct EC access mode: sensors at registers | |
1445 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
1446 | * non-implemented, thermal sensors return 0x80 when | |
1447 | * not available | |
1448 | */ | |
1449 | ||
1450 | ta1 = ta2 = 0; | |
1451 | for (i = 0; i < 8; i++) { | |
1452 | if (likely(acpi_ec_read(0x78 + i, &t))) { | |
1453 | ta1 |= t; | |
1454 | } else { | |
1455 | ta1 = 0; | |
1456 | break; | |
1457 | } | |
1458 | if (likely(acpi_ec_read(0xC0 + i, &t))) { | |
1459 | ta2 |= t; | |
1460 | } else { | |
1461 | ta1 = 0; | |
1462 | break; | |
1463 | } | |
1464 | } | |
1465 | if (ta1 == 0) { | |
1466 | /* This is sheer paranoia, but we handle it anyway */ | |
1467 | if (acpi_tmp7) { | |
1468 | printk(IBM_ERR | |
1469 | "ThinkPad ACPI EC access misbehaving, " | |
1470 | "falling back to ACPI TMPx access mode\n"); | |
1471 | thermal_read_mode = IBMACPI_THERMAL_ACPI_TMP07; | |
1472 | } else { | |
1473 | printk(IBM_ERR | |
1474 | "ThinkPad ACPI EC access misbehaving, " | |
1475 | "disabling thermal sensors access\n"); | |
1476 | thermal_read_mode = IBMACPI_THERMAL_NONE; | |
1477 | } | |
1478 | } else { | |
1479 | thermal_read_mode = | |
1480 | (ta2 != 0) ? | |
1481 | IBMACPI_THERMAL_TPEC_16 : IBMACPI_THERMAL_TPEC_8; | |
1482 | } | |
1483 | } else if (acpi_tmp7) { | |
a26f878a HMH |
1484 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
1485 | /* 600e/x, 770e, 770x */ | |
1486 | thermal_read_mode = IBMACPI_THERMAL_ACPI_UPDT; | |
1487 | } else { | |
1488 | /* Standard ACPI TMPx access, max 8 sensors */ | |
1489 | thermal_read_mode = IBMACPI_THERMAL_ACPI_TMP07; | |
1490 | } | |
1491 | } else { | |
1492 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
1493 | thermal_read_mode = IBMACPI_THERMAL_NONE; | |
1494 | } | |
78f81cc4 BD |
1495 | |
1496 | return 0; | |
1497 | } | |
1498 | ||
a26f878a | 1499 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) |
78f81cc4 | 1500 | { |
a26f878a | 1501 | int i, t; |
60eb0b35 | 1502 | s8 tmp; |
a26f878a | 1503 | char tmpi[] = "TMPi"; |
78f81cc4 | 1504 | |
a26f878a HMH |
1505 | if (!s) |
1506 | return -EINVAL; | |
78f81cc4 | 1507 | |
a26f878a | 1508 | switch (thermal_read_mode) { |
60eb0b35 HMH |
1509 | #if IBMACPI_MAX_THERMAL_SENSORS >= 16 |
1510 | case IBMACPI_THERMAL_TPEC_16: | |
1511 | for (i = 0; i < 8; i++) { | |
1512 | if (!acpi_ec_read(0xC0 + i, &tmp)) | |
1513 | return -EIO; | |
1514 | s->temp[i + 8] = tmp * 1000; | |
1515 | } | |
1516 | /* fallthrough */ | |
1517 | #endif | |
1518 | case IBMACPI_THERMAL_TPEC_8: | |
1519 | for (i = 0; i < 8; i++) { | |
1520 | if (!acpi_ec_read(0x78 + i, &tmp)) | |
1521 | return -EIO; | |
1522 | s->temp[i] = tmp * 1000; | |
1523 | } | |
1524 | return (thermal_read_mode == IBMACPI_THERMAL_TPEC_16) ? 16 : 8; | |
1525 | ||
a26f878a HMH |
1526 | case IBMACPI_THERMAL_ACPI_UPDT: |
1527 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
1528 | return -EIO; | |
1529 | for (i = 0; i < 8; i++) { | |
1530 | tmpi[3] = '0' + i; | |
1531 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
78f81cc4 | 1532 | return -EIO; |
a26f878a HMH |
1533 | s->temp[i] = (t - 2732) * 100; |
1534 | } | |
1535 | return 8; | |
78f81cc4 | 1536 | |
a26f878a | 1537 | case IBMACPI_THERMAL_ACPI_TMP07: |
78f81cc4 BD |
1538 | for (i = 0; i < 8; i++) { |
1539 | tmpi[3] = '0' + i; | |
1540 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
1541 | return -EIO; | |
a26f878a | 1542 | s->temp[i] = t * 1000; |
78f81cc4 | 1543 | } |
a26f878a | 1544 | return 8; |
78f81cc4 | 1545 | |
a26f878a HMH |
1546 | case IBMACPI_THERMAL_NONE: |
1547 | default: | |
1548 | return 0; | |
78f81cc4 | 1549 | } |
a26f878a HMH |
1550 | } |
1551 | ||
1552 | static int thermal_read(char *p) | |
1553 | { | |
1554 | int len = 0; | |
1555 | int n, i; | |
1556 | struct ibm_thermal_sensors_struct t; | |
1557 | ||
1558 | n = thermal_get_sensors(&t); | |
1559 | if (unlikely(n < 0)) | |
1560 | return n; | |
1561 | ||
1562 | len += sprintf(p + len, "temperatures:\t"); | |
1563 | ||
1564 | if (n > 0) { | |
1565 | for (i = 0; i < (n - 1); i++) | |
1566 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); | |
1567 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); | |
1568 | } else | |
1569 | len += sprintf(p + len, "not supported\n"); | |
78f81cc4 BD |
1570 | |
1571 | return len; | |
1572 | } | |
1573 | ||
1574 | static u8 ecdump_regs[256]; | |
1575 | ||
1576 | static int ecdump_read(char *p) | |
1577 | { | |
1578 | int len = 0; | |
1579 | int i, j; | |
1580 | u8 v; | |
1581 | ||
1582 | len += sprintf(p + len, "EC " | |
1583 | " +00 +01 +02 +03 +04 +05 +06 +07" | |
1584 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); | |
1585 | for (i = 0; i < 256; i += 16) { | |
1586 | len += sprintf(p + len, "EC 0x%02x:", i); | |
1587 | for (j = 0; j < 16; j++) { | |
1588 | if (!acpi_ec_read(i + j, &v)) | |
1589 | break; | |
1590 | if (v != ecdump_regs[i + j]) | |
1591 | len += sprintf(p + len, " *%02x", v); | |
1592 | else | |
1593 | len += sprintf(p + len, " %02x", v); | |
1594 | ecdump_regs[i + j] = v; | |
1595 | } | |
1596 | len += sprintf(p + len, "\n"); | |
1597 | if (j != 16) | |
1598 | break; | |
1599 | } | |
1600 | ||
1601 | /* These are way too dangerous to advertise openly... */ | |
1602 | #if 0 | |
1603 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" | |
1604 | " (<offset> is 00-ff, <value> is 00-ff)\n"); | |
1605 | len += sprintf(p + len, "commands:\t0x<offset> <value> " | |
1606 | " (<offset> is 00-ff, <value> is 0-255)\n"); | |
1607 | #endif | |
1608 | return len; | |
1609 | } | |
1610 | ||
1611 | static int ecdump_write(char *buf) | |
1612 | { | |
1613 | char *cmd; | |
1614 | int i, v; | |
1615 | ||
1616 | while ((cmd = next_cmd(&buf))) { | |
1617 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { | |
1618 | /* i and v set */ | |
1619 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { | |
1620 | /* i and v set */ | |
1621 | } else | |
1622 | return -EINVAL; | |
1623 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { | |
1624 | if (!acpi_ec_write(i, v)) | |
1da177e4 LT |
1625 | return -EIO; |
1626 | } else | |
1627 | return -EINVAL; | |
1628 | } | |
1629 | ||
1630 | return 0; | |
78f81cc4 BD |
1631 | } |
1632 | ||
1633 | static int brightness_offset = 0x31; | |
1634 | ||
8acb0250 HM |
1635 | static int brightness_get(struct backlight_device *bd) |
1636 | { | |
8d297264 HMH |
1637 | u8 level; |
1638 | if (!acpi_ec_read(brightness_offset, &level)) | |
1639 | return -EIO; | |
8acb0250 | 1640 | |
8d297264 HMH |
1641 | level &= 0x7; |
1642 | return level; | |
8acb0250 HM |
1643 | } |
1644 | ||
78f81cc4 | 1645 | static int brightness_read(char *p) |
1da177e4 LT |
1646 | { |
1647 | int len = 0; | |
8acb0250 | 1648 | int level; |
1da177e4 | 1649 | |
8acb0250 | 1650 | if ((level = brightness_get(NULL)) < 0) { |
78f81cc4 BD |
1651 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
1652 | } else { | |
1653 | len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); | |
1654 | len += sprintf(p + len, "commands:\tup, down\n"); | |
1655 | len += sprintf(p + len, "commands:\tlevel <level>" | |
1656 | " (<level> is 0-7)\n"); | |
1657 | } | |
1da177e4 LT |
1658 | |
1659 | return len; | |
1660 | } | |
1661 | ||
78f81cc4 BD |
1662 | #define BRIGHTNESS_UP 4 |
1663 | #define BRIGHTNESS_DOWN 5 | |
1664 | ||
8acb0250 | 1665 | static int brightness_set(int value) |
1da177e4 | 1666 | { |
78f81cc4 | 1667 | int cmos_cmd, inc, i; |
8acb0250 HM |
1668 | int current_value = brightness_get(NULL); |
1669 | ||
1670 | value &= 7; | |
1671 | ||
1672 | cmos_cmd = value > current_value ? BRIGHTNESS_UP : BRIGHTNESS_DOWN; | |
1673 | inc = value > current_value ? 1 : -1; | |
1674 | for (i = current_value; i != value; i += inc) { | |
1675 | if (!cmos_eval(cmos_cmd)) | |
1676 | return -EIO; | |
1677 | if (!acpi_ec_write(brightness_offset, i + inc)) | |
1678 | return -EIO; | |
1679 | } | |
1680 | ||
1681 | return 0; | |
1682 | } | |
1683 | ||
1684 | static int brightness_write(char *buf) | |
1685 | { | |
1686 | int level; | |
78f81cc4 | 1687 | int new_level; |
1da177e4 | 1688 | char *cmd; |
1da177e4 LT |
1689 | |
1690 | while ((cmd = next_cmd(&buf))) { | |
8acb0250 HM |
1691 | if ((level = brightness_get(NULL)) < 0) |
1692 | return level; | |
78f81cc4 BD |
1693 | level &= 7; |
1694 | ||
1695 | if (strlencmp(cmd, "up") == 0) { | |
1696 | new_level = level == 7 ? 7 : level + 1; | |
1697 | } else if (strlencmp(cmd, "down") == 0) { | |
1698 | new_level = level == 0 ? 0 : level - 1; | |
1699 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
1700 | new_level >= 0 && new_level <= 7) { | |
1701 | /* new_level set */ | |
1702 | } else | |
1703 | return -EINVAL; | |
1704 | ||
8acb0250 | 1705 | brightness_set(new_level); |
78f81cc4 BD |
1706 | } |
1707 | ||
1708 | return 0; | |
1709 | } | |
1710 | ||
8acb0250 HM |
1711 | static int brightness_update_status(struct backlight_device *bd) |
1712 | { | |
1713 | return brightness_set(bd->props->brightness); | |
1714 | } | |
1715 | ||
78f81cc4 BD |
1716 | static int volume_offset = 0x30; |
1717 | ||
1718 | static int volume_read(char *p) | |
1719 | { | |
1720 | int len = 0; | |
1721 | u8 level; | |
1722 | ||
1723 | if (!acpi_ec_read(volume_offset, &level)) { | |
1724 | len += sprintf(p + len, "level:\t\tunreadable\n"); | |
1725 | } else { | |
1726 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); | |
1727 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); | |
1728 | len += sprintf(p + len, "commands:\tup, down, mute\n"); | |
1729 | len += sprintf(p + len, "commands:\tlevel <level>" | |
1730 | " (<level> is 0-15)\n"); | |
1731 | } | |
1732 | ||
1733 | return len; | |
1734 | } | |
1735 | ||
1736 | #define VOLUME_DOWN 0 | |
1737 | #define VOLUME_UP 1 | |
1738 | #define VOLUME_MUTE 2 | |
1739 | ||
1740 | static int volume_write(char *buf) | |
1741 | { | |
1742 | int cmos_cmd, inc, i; | |
1743 | u8 level, mute; | |
1744 | int new_level, new_mute; | |
1745 | char *cmd; | |
1746 | ||
1747 | while ((cmd = next_cmd(&buf))) { | |
1748 | if (!acpi_ec_read(volume_offset, &level)) | |
1749 | return -EIO; | |
1750 | new_mute = mute = level & 0x40; | |
1751 | new_level = level = level & 0xf; | |
1752 | ||
1753 | if (strlencmp(cmd, "up") == 0) { | |
1754 | if (mute) | |
1755 | new_mute = 0; | |
1756 | else | |
1757 | new_level = level == 15 ? 15 : level + 1; | |
1758 | } else if (strlencmp(cmd, "down") == 0) { | |
1759 | if (mute) | |
1760 | new_mute = 0; | |
1761 | else | |
1762 | new_level = level == 0 ? 0 : level - 1; | |
1763 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && | |
1764 | new_level >= 0 && new_level <= 15) { | |
1765 | /* new_level set */ | |
1766 | } else if (strlencmp(cmd, "mute") == 0) { | |
1767 | new_mute = 0x40; | |
1da177e4 LT |
1768 | } else |
1769 | return -EINVAL; | |
1770 | ||
78f81cc4 BD |
1771 | if (new_level != level) { /* mute doesn't change */ |
1772 | cmos_cmd = new_level > level ? VOLUME_UP : VOLUME_DOWN; | |
1773 | inc = new_level > level ? 1 : -1; | |
1774 | ||
1775 | if (mute && (!cmos_eval(cmos_cmd) || | |
1776 | !acpi_ec_write(volume_offset, level))) | |
1777 | return -EIO; | |
1778 | ||
1779 | for (i = level; i != new_level; i += inc) | |
1780 | if (!cmos_eval(cmos_cmd) || | |
1781 | !acpi_ec_write(volume_offset, i + inc)) | |
1782 | return -EIO; | |
1783 | ||
1784 | if (mute && (!cmos_eval(VOLUME_MUTE) || | |
1785 | !acpi_ec_write(volume_offset, | |
1786 | new_level + mute))) | |
1787 | return -EIO; | |
1788 | } | |
1789 | ||
1790 | if (new_mute != mute) { /* level doesn't change */ | |
1791 | cmos_cmd = new_mute ? VOLUME_MUTE : VOLUME_UP; | |
1792 | ||
1793 | if (!cmos_eval(cmos_cmd) || | |
1794 | !acpi_ec_write(volume_offset, level + new_mute)) | |
1795 | return -EIO; | |
1796 | } | |
1797 | } | |
1798 | ||
1799 | return 0; | |
1800 | } | |
1801 | ||
69ba91cb HMH |
1802 | static enum fan_status_access_mode fan_status_access_mode; |
1803 | static enum fan_control_access_mode fan_control_access_mode; | |
1804 | static enum fan_control_commands fan_control_commands; | |
1805 | ||
778b4d74 HMH |
1806 | static int fan_control_status_known; |
1807 | static u8 fan_control_initial_status; | |
1808 | ||
16663a87 HMH |
1809 | static void fan_watchdog_fire(void *ignored); |
1810 | static int fan_watchdog_maxinterval; | |
1811 | static DECLARE_WORK(fan_watchdog_task, fan_watchdog_fire, NULL); | |
1812 | ||
69ba91cb HMH |
1813 | static int fan_init(void) |
1814 | { | |
69ba91cb HMH |
1815 | fan_status_access_mode = IBMACPI_FAN_NONE; |
1816 | fan_control_access_mode = IBMACPI_FAN_WR_NONE; | |
1817 | fan_control_commands = 0; | |
778b4d74 | 1818 | fan_control_status_known = 1; |
16663a87 | 1819 | fan_watchdog_maxinterval = 0; |
69ba91cb HMH |
1820 | |
1821 | if (gfan_handle) { | |
1822 | /* 570, 600e/x, 770e, 770x */ | |
1823 | fan_status_access_mode = IBMACPI_FAN_RD_ACPI_GFAN; | |
1824 | } else { | |
1825 | /* all other ThinkPads: note that even old-style | |
1826 | * ThinkPad ECs supports the fan control register */ | |
778b4d74 HMH |
1827 | if (likely(acpi_ec_read(fan_status_offset, |
1828 | &fan_control_initial_status))) { | |
69ba91cb | 1829 | fan_status_access_mode = IBMACPI_FAN_RD_TPEC; |
778b4d74 HMH |
1830 | |
1831 | /* In some ThinkPads, neither the EC nor the ACPI | |
1832 | * DSDT initialize the fan status, and it ends up | |
1833 | * being set to 0x07 when it *could* be either | |
1834 | * 0x07 or 0x80. | |
1835 | * | |
1836 | * Enable for TP-1Y (T43), TP-78 (R51e), | |
1837 | * TP-76 (R52), TP-70 (T43, R52), which are known | |
1838 | * to be buggy. */ | |
1839 | if (fan_control_initial_status == 0x07 && | |
1840 | ibm_thinkpad_ec_found && | |
1841 | ((ibm_thinkpad_ec_found[0] == '1' && | |
1842 | ibm_thinkpad_ec_found[1] == 'Y') || | |
1843 | (ibm_thinkpad_ec_found[0] == '7' && | |
1844 | (ibm_thinkpad_ec_found[1] == '6' || | |
1845 | ibm_thinkpad_ec_found[1] == '8' || | |
1846 | ibm_thinkpad_ec_found[1] == '0')) | |
1847 | )) { | |
1848 | printk(IBM_NOTICE | |
1849 | "fan_init: initial fan status is " | |
1850 | "unknown, assuming it is in auto " | |
1851 | "mode\n"); | |
1852 | fan_control_status_known = 0; | |
1853 | } | |
69ba91cb HMH |
1854 | } else { |
1855 | printk(IBM_ERR | |
1856 | "ThinkPad ACPI EC access misbehaving, " | |
1857 | "fan status and control unavailable\n"); | |
1858 | return 0; | |
1859 | } | |
1860 | } | |
1861 | ||
1862 | if (sfan_handle) { | |
1863 | /* 570, 770x-JL */ | |
1864 | fan_control_access_mode = IBMACPI_FAN_WR_ACPI_SFAN; | |
1c6a334e HMH |
1865 | fan_control_commands |= |
1866 | IBMACPI_FAN_CMD_LEVEL | IBMACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
1867 | } else { |
1868 | if (!gfan_handle) { | |
1869 | /* gfan without sfan means no fan control */ | |
1870 | /* all other models implement TP EC 0x2f control */ | |
1871 | ||
1872 | if (fans_handle) { | |
a8b7a662 | 1873 | /* X31, X40, X41 */ |
69ba91cb HMH |
1874 | fan_control_access_mode = |
1875 | IBMACPI_FAN_WR_ACPI_FANS; | |
1876 | fan_control_commands |= | |
1877 | IBMACPI_FAN_CMD_SPEED | | |
a12095c2 | 1878 | IBMACPI_FAN_CMD_LEVEL | |
69ba91cb HMH |
1879 | IBMACPI_FAN_CMD_ENABLE; |
1880 | } else { | |
1881 | fan_control_access_mode = IBMACPI_FAN_WR_TPEC; | |
a12095c2 HMH |
1882 | fan_control_commands |= |
1883 | IBMACPI_FAN_CMD_LEVEL | | |
1884 | IBMACPI_FAN_CMD_ENABLE; | |
69ba91cb HMH |
1885 | } |
1886 | } | |
1887 | } | |
1888 | ||
1889 | return 0; | |
1890 | } | |
78f81cc4 | 1891 | |
c52f0aa5 | 1892 | static int fan_get_status(u8 *status) |
78f81cc4 | 1893 | { |
c52f0aa5 | 1894 | u8 s; |
78f81cc4 | 1895 | |
a8b7a662 HMH |
1896 | /* TODO: |
1897 | * Add IBMACPI_FAN_RD_ACPI_FANS ? */ | |
1898 | ||
3ef8a609 HMH |
1899 | switch (fan_status_access_mode) { |
1900 | case IBMACPI_FAN_RD_ACPI_GFAN: | |
78f81cc4 | 1901 | /* 570, 600e/x, 770e, 770x */ |
c52f0aa5 HMH |
1902 | |
1903 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) | |
1da177e4 | 1904 | return -EIO; |
78f81cc4 | 1905 | |
c52f0aa5 HMH |
1906 | if (likely(status)) |
1907 | *status = s & 0x07; | |
3ef8a609 HMH |
1908 | |
1909 | break; | |
1910 | ||
1911 | case IBMACPI_FAN_RD_TPEC: | |
78f81cc4 | 1912 | /* all except 570, 600e/x, 770e, 770x */ |
c52f0aa5 | 1913 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
3ef8a609 | 1914 | return -EIO; |
78f81cc4 | 1915 | |
c52f0aa5 HMH |
1916 | if (likely(status)) |
1917 | *status = s; | |
1918 | ||
1919 | break; | |
1920 | ||
1921 | default: | |
1922 | return -ENXIO; | |
1923 | } | |
1924 | ||
1925 | return 0; | |
1926 | } | |
1927 | ||
1928 | static int fan_get_speed(unsigned int *speed) | |
1929 | { | |
1930 | u8 hi, lo; | |
1931 | ||
1932 | switch (fan_status_access_mode) { | |
1933 | case IBMACPI_FAN_RD_TPEC: | |
1934 | /* all except 570, 600e/x, 770e, 770x */ | |
3ef8a609 HMH |
1935 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
1936 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
1937 | return -EIO; | |
3ef8a609 | 1938 | |
c52f0aa5 HMH |
1939 | if (likely(speed)) |
1940 | *speed = (hi << 8) | lo; | |
1941 | ||
1942 | break; | |
1943 | ||
1944 | default: | |
1945 | return -ENXIO; | |
1946 | } | |
1947 | ||
1948 | return 0; | |
1949 | } | |
1950 | ||
16663a87 HMH |
1951 | static void fan_exit(void) |
1952 | { | |
1953 | cancel_delayed_work(&fan_watchdog_task); | |
1954 | flush_scheduled_work(); | |
1955 | } | |
1956 | ||
1957 | static void fan_watchdog_reset(void) | |
1958 | { | |
1959 | static int fan_watchdog_active = 0; | |
1960 | ||
1961 | if (fan_watchdog_active) | |
1962 | cancel_delayed_work(&fan_watchdog_task); | |
1963 | ||
1964 | if (fan_watchdog_maxinterval > 0) { | |
1965 | fan_watchdog_active = 1; | |
1966 | if (!schedule_delayed_work(&fan_watchdog_task, | |
1967 | msecs_to_jiffies(fan_watchdog_maxinterval | |
1968 | * 1000))) { | |
1969 | printk(IBM_ERR "failed to schedule the fan watchdog, " | |
1970 | "watchdog will not trigger\n"); | |
1971 | } | |
1972 | } else | |
1973 | fan_watchdog_active = 0; | |
1974 | } | |
1975 | ||
c52f0aa5 HMH |
1976 | static int fan_read(char *p) |
1977 | { | |
1978 | int len = 0; | |
1979 | int rc; | |
1980 | u8 status; | |
1981 | unsigned int speed = 0; | |
1982 | ||
1983 | switch (fan_status_access_mode) { | |
1984 | case IBMACPI_FAN_RD_ACPI_GFAN: | |
1985 | /* 570, 600e/x, 770e, 770x */ | |
1986 | if ((rc = fan_get_status(&status)) < 0) | |
1987 | return rc; | |
1988 | ||
bab812a3 HMH |
1989 | len += sprintf(p + len, "status:\t\t%s\n" |
1990 | "level:\t\t%d\n", | |
1991 | (status != 0) ? "enabled" : "disabled", status); | |
c52f0aa5 HMH |
1992 | break; |
1993 | ||
1994 | case IBMACPI_FAN_RD_TPEC: | |
1995 | /* all except 570, 600e/x, 770e, 770x */ | |
1996 | if ((rc = fan_get_status(&status)) < 0) | |
1997 | return rc; | |
1998 | ||
778b4d74 HMH |
1999 | if (unlikely(!fan_control_status_known)) { |
2000 | if (status != fan_control_initial_status) | |
2001 | fan_control_status_known = 1; | |
2002 | else | |
2003 | /* Return most likely status. In fact, it | |
2004 | * might be the only possible status */ | |
2005 | status = IBMACPI_FAN_EC_AUTO; | |
2006 | } | |
2007 | ||
bab812a3 HMH |
2008 | len += sprintf(p + len, "status:\t\t%s\n", |
2009 | (status != 0) ? "enabled" : "disabled"); | |
c52f0aa5 | 2010 | |
778b4d74 HMH |
2011 | /* No ThinkPad boots on disengaged mode, we can safely |
2012 | * assume the tachometer is online if fan control status | |
2013 | * was unknown */ | |
c52f0aa5 HMH |
2014 | if ((rc = fan_get_speed(&speed)) < 0) |
2015 | return rc; | |
2016 | ||
2017 | len += sprintf(p + len, "speed:\t\t%d\n", speed); | |
bab812a3 HMH |
2018 | |
2019 | if (status & IBMACPI_FAN_EC_DISENGAGED) | |
2020 | /* Disengaged mode takes precedence */ | |
2021 | len += sprintf(p + len, "level:\t\tdisengaged\n"); | |
2022 | else if (status & IBMACPI_FAN_EC_AUTO) | |
2023 | len += sprintf(p + len, "level:\t\tauto\n"); | |
2024 | else | |
2025 | len += sprintf(p + len, "level:\t\t%d\n", status); | |
3ef8a609 HMH |
2026 | break; |
2027 | ||
2028 | case IBMACPI_FAN_NONE: | |
2029 | default: | |
2030 | len += sprintf(p + len, "status:\t\tnot supported\n"); | |
78f81cc4 BD |
2031 | } |
2032 | ||
a12095c2 HMH |
2033 | if (fan_control_commands & IBMACPI_FAN_CMD_LEVEL) { |
2034 | len += sprintf(p + len, "commands:\tlevel <level>"); | |
2035 | ||
2036 | switch (fan_control_access_mode) { | |
2037 | case IBMACPI_FAN_WR_ACPI_SFAN: | |
2038 | len += sprintf(p + len, " (<level> is 0-7)\n"); | |
2039 | break; | |
2040 | ||
2041 | default: | |
2042 | len += sprintf(p + len, " (<level> is 0-7, " | |
2043 | "auto, disengaged)\n"); | |
2044 | break; | |
2045 | } | |
2046 | } | |
3ef8a609 HMH |
2047 | |
2048 | if (fan_control_commands & IBMACPI_FAN_CMD_ENABLE) | |
16663a87 HMH |
2049 | len += sprintf(p + len, "commands:\tenable, disable\n" |
2050 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), " | |
2051 | "1-120 (seconds))\n"); | |
3ef8a609 HMH |
2052 | |
2053 | if (fan_control_commands & IBMACPI_FAN_CMD_SPEED) | |
78f81cc4 BD |
2054 | len += sprintf(p + len, "commands:\tspeed <speed>" |
2055 | " (<speed> is 0-65535)\n"); | |
2056 | ||
2057 | return len; | |
2058 | } | |
2059 | ||
18ad7996 | 2060 | static int fan_set_level(int level) |
78f81cc4 | 2061 | { |
18ad7996 HMH |
2062 | switch (fan_control_access_mode) { |
2063 | case IBMACPI_FAN_WR_ACPI_SFAN: | |
2064 | if (level >= 0 && level <= 7) { | |
78f81cc4 BD |
2065 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
2066 | return -EIO; | |
18ad7996 HMH |
2067 | } else |
2068 | return -EINVAL; | |
2069 | break; | |
2070 | ||
a12095c2 HMH |
2071 | case IBMACPI_FAN_WR_ACPI_FANS: |
2072 | case IBMACPI_FAN_WR_TPEC: | |
2073 | if ((level != IBMACPI_FAN_EC_AUTO) && | |
2074 | (level != IBMACPI_FAN_EC_DISENGAGED) && | |
2075 | ((level < 0) || (level > 7))) | |
2076 | return -EINVAL; | |
2077 | ||
2078 | if (!acpi_ec_write(fan_status_offset, level)) | |
2079 | return -EIO; | |
778b4d74 HMH |
2080 | else |
2081 | fan_control_status_known = 1; | |
a12095c2 HMH |
2082 | break; |
2083 | ||
18ad7996 HMH |
2084 | default: |
2085 | return -ENXIO; | |
2086 | } | |
2087 | return 0; | |
2088 | } | |
2089 | ||
2090 | static int fan_set_enable(void) | |
2091 | { | |
1c6a334e HMH |
2092 | u8 s; |
2093 | int rc; | |
2094 | ||
18ad7996 HMH |
2095 | switch (fan_control_access_mode) { |
2096 | case IBMACPI_FAN_WR_ACPI_FANS: | |
2097 | case IBMACPI_FAN_WR_TPEC: | |
1c6a334e HMH |
2098 | if ((rc = fan_get_status(&s)) < 0) |
2099 | return rc; | |
2100 | ||
2101 | /* Don't go out of emergency fan mode */ | |
2102 | if (s != 7) | |
2103 | s = IBMACPI_FAN_EC_AUTO; | |
2104 | ||
2105 | if (!acpi_ec_write(fan_status_offset, s)) | |
2106 | return -EIO; | |
778b4d74 HMH |
2107 | else |
2108 | fan_control_status_known = 1; | |
1c6a334e HMH |
2109 | break; |
2110 | ||
2111 | case IBMACPI_FAN_WR_ACPI_SFAN: | |
2112 | if ((rc = fan_get_status(&s)) < 0) | |
2113 | return rc; | |
2114 | ||
2115 | s &= 0x07; | |
2116 | ||
2117 | /* Set fan to at least level 4 */ | |
2118 | if (s < 4) | |
2119 | s = 4; | |
2120 | ||
2121 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) | |
18ad7996 HMH |
2122 | return -EIO; |
2123 | break; | |
2124 | ||
2125 | default: | |
2126 | return -ENXIO; | |
2127 | } | |
2128 | return 0; | |
2129 | } | |
2130 | ||
2131 | static int fan_set_disable(void) | |
2132 | { | |
2133 | switch (fan_control_access_mode) { | |
2134 | case IBMACPI_FAN_WR_ACPI_FANS: | |
2135 | case IBMACPI_FAN_WR_TPEC: | |
2136 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
2137 | return -EIO; | |
778b4d74 HMH |
2138 | else |
2139 | fan_control_status_known = 1; | |
18ad7996 HMH |
2140 | break; |
2141 | ||
1c6a334e HMH |
2142 | case IBMACPI_FAN_WR_ACPI_SFAN: |
2143 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
2144 | return -EIO; | |
2145 | break; | |
2146 | ||
18ad7996 HMH |
2147 | default: |
2148 | return -ENXIO; | |
2149 | } | |
2150 | return 0; | |
2151 | } | |
2152 | ||
2153 | static int fan_set_speed(int speed) | |
2154 | { | |
2155 | switch (fan_control_access_mode) { | |
2156 | case IBMACPI_FAN_WR_ACPI_FANS: | |
2157 | if (speed >= 0 && speed <= 65535) { | |
78f81cc4 BD |
2158 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", |
2159 | speed, speed, speed)) | |
2160 | return -EIO; | |
2161 | } else | |
2162 | return -EINVAL; | |
18ad7996 | 2163 | break; |
1da177e4 | 2164 | |
18ad7996 HMH |
2165 | default: |
2166 | return -ENXIO; | |
2167 | } | |
1da177e4 | 2168 | return 0; |
78f81cc4 BD |
2169 | } |
2170 | ||
18ad7996 HMH |
2171 | static int fan_write_cmd_level(const char *cmd, int *rc) |
2172 | { | |
2173 | int level; | |
2174 | ||
a12095c2 HMH |
2175 | if (strlencmp(cmd, "level auto") == 0) |
2176 | level = IBMACPI_FAN_EC_AUTO; | |
2177 | else if (strlencmp(cmd, "level disengaged") == 0) | |
2178 | level = IBMACPI_FAN_EC_DISENGAGED; | |
2179 | else if (sscanf(cmd, "level %d", &level) != 1) | |
18ad7996 HMH |
2180 | return 0; |
2181 | ||
2182 | if ((*rc = fan_set_level(level)) == -ENXIO) | |
2183 | printk(IBM_ERR "level command accepted for unsupported " | |
2184 | "access mode %d", fan_control_access_mode); | |
2185 | ||
2186 | return 1; | |
2187 | } | |
2188 | ||
2189 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
2190 | { | |
2191 | if (strlencmp(cmd, "enable") != 0) | |
2192 | return 0; | |
2193 | ||
2194 | if ((*rc = fan_set_enable()) == -ENXIO) | |
2195 | printk(IBM_ERR "enable command accepted for unsupported " | |
2196 | "access mode %d", fan_control_access_mode); | |
2197 | ||
2198 | return 1; | |
2199 | } | |
2200 | ||
2201 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
2202 | { | |
2203 | if (strlencmp(cmd, "disable") != 0) | |
2204 | return 0; | |
2205 | ||
2206 | if ((*rc = fan_set_disable()) == -ENXIO) | |
2207 | printk(IBM_ERR "disable command accepted for unsupported " | |
2208 | "access mode %d", fan_control_access_mode); | |
2209 | ||
2210 | return 1; | |
2211 | } | |
2212 | ||
2213 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
2214 | { | |
2215 | int speed; | |
2216 | ||
a8b7a662 HMH |
2217 | /* TODO: |
2218 | * Support speed <low> <medium> <high> ? */ | |
2219 | ||
18ad7996 HMH |
2220 | if (sscanf(cmd, "speed %d", &speed) != 1) |
2221 | return 0; | |
2222 | ||
2223 | if ((*rc = fan_set_speed(speed)) == -ENXIO) | |
2224 | printk(IBM_ERR "speed command accepted for unsupported " | |
2225 | "access mode %d", fan_control_access_mode); | |
2226 | ||
2227 | return 1; | |
2228 | } | |
2229 | ||
16663a87 HMH |
2230 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
2231 | { | |
2232 | int interval; | |
2233 | ||
2234 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
2235 | return 0; | |
2236 | ||
2237 | if (interval < 0 || interval > 120) | |
2238 | *rc = -EINVAL; | |
2239 | else | |
2240 | fan_watchdog_maxinterval = interval; | |
2241 | ||
2242 | return 1; | |
2243 | } | |
2244 | ||
18ad7996 HMH |
2245 | static int fan_write(char *buf) |
2246 | { | |
2247 | char *cmd; | |
2248 | int rc = 0; | |
2249 | ||
2250 | while (!rc && (cmd = next_cmd(&buf))) { | |
2251 | if (!((fan_control_commands & IBMACPI_FAN_CMD_LEVEL) && | |
2252 | fan_write_cmd_level(cmd, &rc)) && | |
2253 | !((fan_control_commands & IBMACPI_FAN_CMD_ENABLE) && | |
2254 | (fan_write_cmd_enable(cmd, &rc) || | |
16663a87 HMH |
2255 | fan_write_cmd_disable(cmd, &rc) || |
2256 | fan_write_cmd_watchdog(cmd, &rc))) && | |
18ad7996 HMH |
2257 | !((fan_control_commands & IBMACPI_FAN_CMD_SPEED) && |
2258 | fan_write_cmd_speed(cmd, &rc)) | |
2259 | ) | |
2260 | rc = -EINVAL; | |
16663a87 HMH |
2261 | else if (!rc) |
2262 | fan_watchdog_reset(); | |
18ad7996 HMH |
2263 | } |
2264 | ||
2265 | return rc; | |
2266 | } | |
2267 | ||
16663a87 HMH |
2268 | static void fan_watchdog_fire(void *ignored) |
2269 | { | |
2270 | printk(IBM_NOTICE "fan watchdog: enabling fan\n"); | |
2271 | if (fan_set_enable()) { | |
2272 | printk(IBM_ERR "fan watchdog: error while enabling fan\n"); | |
2273 | /* reschedule for later */ | |
2274 | fan_watchdog_reset(); | |
2275 | } | |
2276 | } | |
2277 | ||
1da177e4 LT |
2278 | static struct ibm_struct ibms[] = { |
2279 | { | |
78f81cc4 BD |
2280 | .name = "driver", |
2281 | .init = driver_init, | |
2282 | .read = driver_read, | |
2283 | }, | |
2284 | { | |
2285 | .name = "hotkey", | |
2286 | .hid = IBM_HKEY_HID, | |
2287 | .init = hotkey_init, | |
2288 | .read = hotkey_read, | |
2289 | .write = hotkey_write, | |
2290 | .exit = hotkey_exit, | |
2291 | .notify = hotkey_notify, | |
2292 | .handle = &hkey_handle, | |
2293 | .type = ACPI_DEVICE_NOTIFY, | |
2294 | }, | |
2295 | { | |
2296 | .name = "bluetooth", | |
2297 | .init = bluetooth_init, | |
2298 | .read = bluetooth_read, | |
2299 | .write = bluetooth_write, | |
2300 | }, | |
42adb53c JF |
2301 | { |
2302 | .name = "wan", | |
2303 | .init = wan_init, | |
2304 | .read = wan_read, | |
2305 | .write = wan_write, | |
2306 | .experimental = 1, | |
2307 | }, | |
78f81cc4 BD |
2308 | { |
2309 | .name = "video", | |
2310 | .init = video_init, | |
2311 | .read = video_read, | |
2312 | .write = video_write, | |
2313 | .exit = video_exit, | |
2314 | }, | |
1da177e4 | 2315 | { |
78f81cc4 BD |
2316 | .name = "light", |
2317 | .init = light_init, | |
2318 | .read = light_read, | |
2319 | .write = light_write, | |
2320 | }, | |
63e5f248 | 2321 | #ifdef CONFIG_ACPI_IBM_DOCK |
1da177e4 | 2322 | { |
78f81cc4 BD |
2323 | .name = "dock", |
2324 | .read = dock_read, | |
2325 | .write = dock_write, | |
2326 | .notify = dock_notify, | |
2327 | .handle = &dock_handle, | |
2328 | .type = ACPI_SYSTEM_NOTIFY, | |
2329 | }, | |
1da177e4 | 2330 | { |
78f81cc4 BD |
2331 | .name = "dock", |
2332 | .hid = IBM_PCI_HID, | |
2333 | .notify = dock_notify, | |
2334 | .handle = &pci_handle, | |
2335 | .type = ACPI_SYSTEM_NOTIFY, | |
2336 | }, | |
63e5f248 | 2337 | #endif |
2df910b4 | 2338 | #ifdef CONFIG_ACPI_IBM_BAY |
1da177e4 | 2339 | { |
78f81cc4 BD |
2340 | .name = "bay", |
2341 | .init = bay_init, | |
2342 | .read = bay_read, | |
2343 | .write = bay_write, | |
2344 | .notify = bay_notify, | |
2345 | .handle = &bay_handle, | |
2346 | .type = ACPI_SYSTEM_NOTIFY, | |
2347 | }, | |
2df910b4 | 2348 | #endif |
1da177e4 | 2349 | { |
78f81cc4 BD |
2350 | .name = "cmos", |
2351 | .read = cmos_read, | |
2352 | .write = cmos_write, | |
2353 | }, | |
1da177e4 | 2354 | { |
78f81cc4 BD |
2355 | .name = "led", |
2356 | .init = led_init, | |
2357 | .read = led_read, | |
2358 | .write = led_write, | |
2359 | }, | |
1da177e4 | 2360 | { |
78f81cc4 BD |
2361 | .name = "beep", |
2362 | .read = beep_read, | |
2363 | .write = beep_write, | |
2364 | }, | |
1da177e4 | 2365 | { |
78f81cc4 BD |
2366 | .name = "thermal", |
2367 | .init = thermal_init, | |
2368 | .read = thermal_read, | |
2369 | }, | |
1da177e4 | 2370 | { |
78f81cc4 BD |
2371 | .name = "ecdump", |
2372 | .read = ecdump_read, | |
2373 | .write = ecdump_write, | |
2374 | .experimental = 1, | |
2375 | }, | |
2376 | { | |
2377 | .name = "brightness", | |
2378 | .read = brightness_read, | |
2379 | .write = brightness_write, | |
78f81cc4 BD |
2380 | }, |
2381 | { | |
2382 | .name = "volume", | |
2383 | .read = volume_read, | |
2384 | .write = volume_write, | |
78f81cc4 BD |
2385 | }, |
2386 | { | |
2387 | .name = "fan", | |
2388 | .read = fan_read, | |
2389 | .write = fan_write, | |
69ba91cb | 2390 | .init = fan_init, |
16663a87 | 2391 | .exit = fan_exit, |
78f81cc4 BD |
2392 | .experimental = 1, |
2393 | }, | |
1da177e4 | 2394 | }; |
1da177e4 LT |
2395 | |
2396 | static int dispatch_read(char *page, char **start, off_t off, int count, | |
2397 | int *eof, void *data) | |
2398 | { | |
2399 | struct ibm_struct *ibm = (struct ibm_struct *)data; | |
2400 | int len; | |
78f81cc4 | 2401 | |
1da177e4 LT |
2402 | if (!ibm || !ibm->read) |
2403 | return -EINVAL; | |
2404 | ||
78f81cc4 | 2405 | len = ibm->read(page); |
1da177e4 LT |
2406 | if (len < 0) |
2407 | return len; | |
2408 | ||
2409 | if (len <= off + count) | |
2410 | *eof = 1; | |
2411 | *start = page + off; | |
2412 | len -= off; | |
2413 | if (len > count) | |
2414 | len = count; | |
2415 | if (len < 0) | |
2416 | len = 0; | |
2417 | ||
2418 | return len; | |
2419 | } | |
2420 | ||
78f81cc4 | 2421 | static int dispatch_write(struct file *file, const char __user * userbuf, |
1da177e4 LT |
2422 | unsigned long count, void *data) |
2423 | { | |
2424 | struct ibm_struct *ibm = (struct ibm_struct *)data; | |
2425 | char *kernbuf; | |
2426 | int ret; | |
2427 | ||
2428 | if (!ibm || !ibm->write) | |
2429 | return -EINVAL; | |
2430 | ||
2431 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
2432 | if (!kernbuf) | |
2433 | return -ENOMEM; | |
2434 | ||
78f81cc4 | 2435 | if (copy_from_user(kernbuf, userbuf, count)) { |
1da177e4 | 2436 | kfree(kernbuf); |
78f81cc4 | 2437 | return -EFAULT; |
1da177e4 LT |
2438 | } |
2439 | ||
2440 | kernbuf[count] = 0; | |
2441 | strcat(kernbuf, ","); | |
78f81cc4 | 2442 | ret = ibm->write(kernbuf); |
1da177e4 LT |
2443 | if (ret == 0) |
2444 | ret = count; | |
2445 | ||
2446 | kfree(kernbuf); | |
2447 | ||
78f81cc4 | 2448 | return ret; |
1da177e4 LT |
2449 | } |
2450 | ||
2451 | static void dispatch_notify(acpi_handle handle, u32 event, void *data) | |
2452 | { | |
2453 | struct ibm_struct *ibm = (struct ibm_struct *)data; | |
2454 | ||
2455 | if (!ibm || !ibm->notify) | |
2456 | return; | |
2457 | ||
2458 | ibm->notify(ibm, event); | |
2459 | } | |
2460 | ||
78f81cc4 | 2461 | static int __init setup_notify(struct ibm_struct *ibm) |
1da177e4 LT |
2462 | { |
2463 | acpi_status status; | |
2464 | int ret; | |
2465 | ||
2466 | if (!*ibm->handle) | |
2467 | return 0; | |
2468 | ||
2469 | ret = acpi_bus_get_device(*ibm->handle, &ibm->device); | |
2470 | if (ret < 0) { | |
2471 | printk(IBM_ERR "%s device not present\n", ibm->name); | |
2472 | return 0; | |
2473 | } | |
2474 | ||
2475 | acpi_driver_data(ibm->device) = ibm; | |
2476 | sprintf(acpi_device_class(ibm->device), "%s/%s", IBM_NAME, ibm->name); | |
2477 | ||
2478 | status = acpi_install_notify_handler(*ibm->handle, ibm->type, | |
2479 | dispatch_notify, ibm); | |
2480 | if (ACPI_FAILURE(status)) { | |
2481 | printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", | |
2482 | ibm->name, status); | |
2483 | return -ENODEV; | |
2484 | } | |
2485 | ||
1da177e4 LT |
2486 | return 0; |
2487 | } | |
2488 | ||
78f81cc4 | 2489 | static int __init ibm_device_add(struct acpi_device *device) |
1da177e4 LT |
2490 | { |
2491 | return 0; | |
2492 | } | |
2493 | ||
78f81cc4 | 2494 | static int __init register_driver(struct ibm_struct *ibm) |
1da177e4 LT |
2495 | { |
2496 | int ret; | |
2497 | ||
2498 | ibm->driver = kmalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
2499 | if (!ibm->driver) { | |
2500 | printk(IBM_ERR "kmalloc(ibm->driver) failed\n"); | |
2501 | return -1; | |
2502 | } | |
2503 | ||
2504 | memset(ibm->driver, 0, sizeof(struct acpi_driver)); | |
3dfd35cd | 2505 | sprintf(ibm->driver->name, "%s_%s", IBM_NAME, ibm->name); |
1da177e4 | 2506 | ibm->driver->ids = ibm->hid; |
78f81cc4 | 2507 | ibm->driver->ops.add = &ibm_device_add; |
1da177e4 LT |
2508 | |
2509 | ret = acpi_bus_register_driver(ibm->driver); | |
2510 | if (ret < 0) { | |
2511 | printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", | |
2512 | ibm->hid, ret); | |
2513 | kfree(ibm->driver); | |
2514 | } | |
2515 | ||
2516 | return ret; | |
2517 | } | |
2518 | ||
78f81cc4 | 2519 | static int __init ibm_init(struct ibm_struct *ibm) |
1da177e4 LT |
2520 | { |
2521 | int ret; | |
2522 | struct proc_dir_entry *entry; | |
2523 | ||
2524 | if (ibm->experimental && !experimental) | |
2525 | return 0; | |
2526 | ||
2527 | if (ibm->hid) { | |
2528 | ret = register_driver(ibm); | |
2529 | if (ret < 0) | |
2530 | return ret; | |
2531 | ibm->driver_registered = 1; | |
2532 | } | |
2533 | ||
2534 | if (ibm->init) { | |
78f81cc4 | 2535 | ret = ibm->init(); |
1da177e4 LT |
2536 | if (ret != 0) |
2537 | return ret; | |
2538 | ibm->init_called = 1; | |
2539 | } | |
2540 | ||
78f81cc4 BD |
2541 | if (ibm->read) { |
2542 | entry = create_proc_entry(ibm->name, | |
2543 | S_IFREG | S_IRUGO | S_IWUSR, | |
2544 | proc_dir); | |
2545 | if (!entry) { | |
2546 | printk(IBM_ERR "unable to create proc entry %s\n", | |
2547 | ibm->name); | |
2548 | return -ENODEV; | |
2549 | } | |
2550 | entry->owner = THIS_MODULE; | |
2551 | entry->data = ibm; | |
1da177e4 | 2552 | entry->read_proc = &dispatch_read; |
78f81cc4 BD |
2553 | if (ibm->write) |
2554 | entry->write_proc = &dispatch_write; | |
2555 | ibm->proc_created = 1; | |
2556 | } | |
1da177e4 LT |
2557 | |
2558 | if (ibm->notify) { | |
2559 | ret = setup_notify(ibm); | |
2560 | if (ret < 0) | |
2561 | return ret; | |
78f81cc4 | 2562 | ibm->notify_installed = 1; |
1da177e4 LT |
2563 | } |
2564 | ||
2565 | return 0; | |
2566 | } | |
2567 | ||
2568 | static void ibm_exit(struct ibm_struct *ibm) | |
2569 | { | |
2570 | if (ibm->notify_installed) | |
2571 | acpi_remove_notify_handler(*ibm->handle, ibm->type, | |
2572 | dispatch_notify); | |
2573 | ||
2574 | if (ibm->proc_created) | |
2575 | remove_proc_entry(ibm->name, proc_dir); | |
2576 | ||
2577 | if (ibm->init_called && ibm->exit) | |
78f81cc4 | 2578 | ibm->exit(); |
1da177e4 LT |
2579 | |
2580 | if (ibm->driver_registered) { | |
2581 | acpi_bus_unregister_driver(ibm->driver); | |
2582 | kfree(ibm->driver); | |
2583 | } | |
2584 | } | |
2585 | ||
78f81cc4 BD |
2586 | static void __init ibm_handle_init(char *name, |
2587 | acpi_handle * handle, acpi_handle parent, | |
2588 | char **paths, int num_paths, char **path) | |
1da177e4 LT |
2589 | { |
2590 | int i; | |
2591 | acpi_status status; | |
2592 | ||
78f81cc4 | 2593 | for (i = 0; i < num_paths; i++) { |
1da177e4 | 2594 | status = acpi_get_handle(parent, paths[i], handle); |
78f81cc4 BD |
2595 | if (ACPI_SUCCESS(status)) { |
2596 | *path = paths[i]; | |
2597 | return; | |
2598 | } | |
1da177e4 LT |
2599 | } |
2600 | ||
78f81cc4 | 2601 | *handle = NULL; |
1da177e4 LT |
2602 | } |
2603 | ||
78f81cc4 | 2604 | #define IBM_HANDLE_INIT(object) \ |
1da177e4 | 2605 | ibm_handle_init(#object, &object##_handle, *object##_parent, \ |
78f81cc4 | 2606 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
1da177e4 LT |
2607 | |
2608 | static int set_ibm_param(const char *val, struct kernel_param *kp) | |
2609 | { | |
2610 | unsigned int i; | |
1da177e4 | 2611 | |
78f81cc4 BD |
2612 | for (i = 0; i < ARRAY_SIZE(ibms); i++) |
2613 | if (strcmp(ibms[i].name, kp->name) == 0 && ibms[i].write) { | |
2614 | if (strlen(val) > sizeof(ibms[i].param) - 2) | |
2615 | return -ENOSPC; | |
2616 | strcpy(ibms[i].param, val); | |
2617 | strcat(ibms[i].param, ","); | |
2618 | return 0; | |
2619 | } | |
1da177e4 | 2620 | |
1da177e4 LT |
2621 | return -EINVAL; |
2622 | } | |
2623 | ||
2624 | #define IBM_PARAM(feature) \ | |
2625 | module_param_call(feature, set_ibm_param, NULL, NULL, 0) | |
2626 | ||
78f81cc4 BD |
2627 | IBM_PARAM(hotkey); |
2628 | IBM_PARAM(bluetooth); | |
2629 | IBM_PARAM(video); | |
2630 | IBM_PARAM(light); | |
63e5f248 | 2631 | #ifdef CONFIG_ACPI_IBM_DOCK |
78f81cc4 | 2632 | IBM_PARAM(dock); |
63e5f248 | 2633 | #endif |
2df910b4 | 2634 | #ifdef CONFIG_ACPI_IBM_BAY |
78f81cc4 | 2635 | IBM_PARAM(bay); |
2df910b4 | 2636 | #endif |
78f81cc4 BD |
2637 | IBM_PARAM(cmos); |
2638 | IBM_PARAM(led); | |
2639 | IBM_PARAM(beep); | |
2640 | IBM_PARAM(ecdump); | |
2641 | IBM_PARAM(brightness); | |
2642 | IBM_PARAM(volume); | |
2643 | IBM_PARAM(fan); | |
2644 | ||
8acb0250 | 2645 | static struct backlight_properties ibm_backlight_data = { |
8d297264 HMH |
2646 | .owner = THIS_MODULE, |
2647 | .get_brightness = brightness_get, | |
2648 | .update_status = brightness_update_status, | |
2649 | .max_brightness = 7, | |
8acb0250 HM |
2650 | }; |
2651 | ||
1da177e4 LT |
2652 | static void acpi_ibm_exit(void) |
2653 | { | |
2654 | int i; | |
2655 | ||
8acb0250 HM |
2656 | if (ibm_backlight_device) |
2657 | backlight_device_unregister(ibm_backlight_device); | |
2658 | ||
78f81cc4 | 2659 | for (i = ARRAY_SIZE(ibms) - 1; i >= 0; i--) |
1da177e4 LT |
2660 | ibm_exit(&ibms[i]); |
2661 | ||
2662 | remove_proc_entry(IBM_DIR, acpi_root_dir); | |
49a13cd6 HMH |
2663 | |
2664 | if (ibm_thinkpad_ec_found) | |
2665 | kfree(ibm_thinkpad_ec_found); | |
1da177e4 LT |
2666 | } |
2667 | ||
49a13cd6 | 2668 | static char* __init check_dmi_for_ec(void) |
60eb0b35 HMH |
2669 | { |
2670 | struct dmi_device *dev = NULL; | |
49a13cd6 | 2671 | char ec_fw_string[18]; |
60eb0b35 HMH |
2672 | |
2673 | /* | |
2674 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
2675 | * X32 or newer, all Z series; Some models must have an | |
2676 | * up-to-date BIOS or they will not be detected. | |
2677 | * | |
2678 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
2679 | */ | |
2680 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
49a13cd6 HMH |
2681 | if (sscanf(dev->name, |
2682 | "IBM ThinkPad Embedded Controller -[%17c", | |
2683 | ec_fw_string) == 1) { | |
2684 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
2685 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
2686 | return kstrdup(ec_fw_string, GFP_KERNEL); | |
2687 | } | |
60eb0b35 | 2688 | } |
49a13cd6 | 2689 | return NULL; |
60eb0b35 HMH |
2690 | } |
2691 | ||
1da177e4 LT |
2692 | static int __init acpi_ibm_init(void) |
2693 | { | |
2694 | int ret, i; | |
2695 | ||
2696 | if (acpi_disabled) | |
2697 | return -ENODEV; | |
2698 | ||
78f81cc4 BD |
2699 | if (!acpi_specific_hotkey_enabled) { |
2700 | printk(IBM_ERR "using generic hotkey driver\n"); | |
1da177e4 | 2701 | return -ENODEV; |
78f81cc4 | 2702 | } |
1da177e4 | 2703 | |
78f81cc4 BD |
2704 | /* ec is required because many other handles are relative to it */ |
2705 | IBM_HANDLE_INIT(ec); | |
2706 | if (!ec_handle) { | |
2707 | printk(IBM_ERR "ec object not found\n"); | |
1da177e4 | 2708 | return -ENODEV; |
78f81cc4 | 2709 | } |
1da177e4 | 2710 | |
60eb0b35 HMH |
2711 | /* Models with newer firmware report the EC in DMI */ |
2712 | ibm_thinkpad_ec_found = check_dmi_for_ec(); | |
49a13cd6 HMH |
2713 | if (ibm_thinkpad_ec_found) |
2714 | printk(IBM_INFO "ThinkPad EC firmware %s\n", | |
2715 | ibm_thinkpad_ec_found); | |
60eb0b35 | 2716 | |
1da177e4 | 2717 | /* these handles are not required */ |
78f81cc4 BD |
2718 | IBM_HANDLE_INIT(vid); |
2719 | IBM_HANDLE_INIT(vid2); | |
2720 | IBM_HANDLE_INIT(ledb); | |
2721 | IBM_HANDLE_INIT(led); | |
2722 | IBM_HANDLE_INIT(hkey); | |
2723 | IBM_HANDLE_INIT(lght); | |
2724 | IBM_HANDLE_INIT(cmos); | |
63e5f248 | 2725 | #ifdef CONFIG_ACPI_IBM_DOCK |
78f81cc4 | 2726 | IBM_HANDLE_INIT(dock); |
63e5f248 | 2727 | #endif |
78f81cc4 | 2728 | IBM_HANDLE_INIT(pci); |
2df910b4 | 2729 | #ifdef CONFIG_ACPI_IBM_BAY |
78f81cc4 BD |
2730 | IBM_HANDLE_INIT(bay); |
2731 | if (bay_handle) | |
2732 | IBM_HANDLE_INIT(bay_ej); | |
2733 | IBM_HANDLE_INIT(bay2); | |
2734 | if (bay2_handle) | |
2735 | IBM_HANDLE_INIT(bay2_ej); | |
2df910b4 | 2736 | #endif |
78f81cc4 BD |
2737 | IBM_HANDLE_INIT(beep); |
2738 | IBM_HANDLE_INIT(ecrd); | |
2739 | IBM_HANDLE_INIT(ecwr); | |
2740 | IBM_HANDLE_INIT(fans); | |
2741 | IBM_HANDLE_INIT(gfan); | |
2742 | IBM_HANDLE_INIT(sfan); | |
1da177e4 LT |
2743 | |
2744 | proc_dir = proc_mkdir(IBM_DIR, acpi_root_dir); | |
2745 | if (!proc_dir) { | |
2746 | printk(IBM_ERR "unable to create proc dir %s", IBM_DIR); | |
2747 | return -ENODEV; | |
2748 | } | |
2749 | proc_dir->owner = THIS_MODULE; | |
78f81cc4 BD |
2750 | |
2751 | for (i = 0; i < ARRAY_SIZE(ibms); i++) { | |
1da177e4 | 2752 | ret = ibm_init(&ibms[i]); |
78f81cc4 BD |
2753 | if (ret >= 0 && *ibms[i].param) |
2754 | ret = ibms[i].write(ibms[i].param); | |
1da177e4 LT |
2755 | if (ret < 0) { |
2756 | acpi_ibm_exit(); | |
2757 | return ret; | |
2758 | } | |
2759 | } | |
2760 | ||
8acb0250 HM |
2761 | ibm_backlight_device = backlight_device_register("ibm", NULL, |
2762 | &ibm_backlight_data); | |
8d297264 | 2763 | if (IS_ERR(ibm_backlight_device)) { |
8acb0250 HM |
2764 | printk(IBM_ERR "Could not register ibm backlight device\n"); |
2765 | ibm_backlight_device = NULL; | |
2766 | acpi_ibm_exit(); | |
2767 | } | |
2768 | ||
1da177e4 LT |
2769 | return 0; |
2770 | } | |
2771 | ||
2772 | module_init(acpi_ibm_init); | |
2773 | module_exit(acpi_ibm_exit); |