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