Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * asus_acpi.c - Asus Laptop ACPI Extras | |
3 | * | |
4 | * | |
a170a531 | 5 | * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor |
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 | |
20 | * | |
21 | * | |
22 | * The development page for this driver is located at | |
23 | * http://sourceforge.net/projects/acpi4asus/ | |
24 | * | |
25 | * Credits: | |
26 | * Pontus Fuchs - Helper functions, cleanup | |
27 | * Johann Wiesner - Small compile fixes | |
28 | * John Belmonte - ACPI code for Toshiba laptop was a good starting point. | |
ad71860a | 29 | * �ic Burghard - LED display support for W1N |
1da177e4 | 30 | * |
1da177e4 LT |
31 | */ |
32 | ||
33 | #include <linux/kernel.h> | |
34 | #include <linux/module.h> | |
35 | #include <linux/init.h> | |
36 | #include <linux/types.h> | |
37 | #include <linux/proc_fs.h> | |
ff93be5d | 38 | #include <linux/seq_file.h> |
2039a6eb | 39 | #include <linux/backlight.h> |
1da177e4 LT |
40 | #include <acpi/acpi_drivers.h> |
41 | #include <acpi/acpi_bus.h> | |
42 | #include <asm/uaccess.h> | |
43 | ||
a170a531 | 44 | #define ASUS_ACPI_VERSION "0.30" |
1da177e4 | 45 | |
c6c38bac | 46 | #define PROC_ASUS "asus" /* The directory */ |
1da177e4 LT |
47 | #define PROC_MLED "mled" |
48 | #define PROC_WLED "wled" | |
49 | #define PROC_TLED "tled" | |
e067aaa7 | 50 | #define PROC_BT "bluetooth" |
42cb8912 | 51 | #define PROC_LEDD "ledd" |
1da177e4 LT |
52 | #define PROC_INFO "info" |
53 | #define PROC_LCD "lcd" | |
54 | #define PROC_BRN "brn" | |
55 | #define PROC_DISP "disp" | |
56 | ||
57 | #define ACPI_HOTK_NAME "Asus Laptop ACPI Extras Driver" | |
58 | #define ACPI_HOTK_CLASS "hotkey" | |
59 | #define ACPI_HOTK_DEVICE_NAME "Hotkey" | |
1da177e4 LT |
60 | |
61 | /* | |
62 | * Some events we use, same for all Asus | |
63 | */ | |
4be44fcd | 64 | #define BR_UP 0x10 |
1da177e4 LT |
65 | #define BR_DOWN 0x20 |
66 | ||
67 | /* | |
68 | * Flags for hotk status | |
69 | */ | |
c6c38bac MD |
70 | #define MLED_ON 0x01 /* Mail LED */ |
71 | #define WLED_ON 0x02 /* Wireless LED */ | |
72 | #define TLED_ON 0x04 /* Touchpad LED */ | |
73 | #define BT_ON 0x08 /* Internal Bluetooth */ | |
1da177e4 LT |
74 | |
75 | MODULE_AUTHOR("Julien Lerouge, Karol Kozimor"); | |
76 | MODULE_DESCRIPTION(ACPI_HOTK_NAME); | |
77 | MODULE_LICENSE("GPL"); | |
78 | ||
1da177e4 LT |
79 | static uid_t asus_uid; |
80 | static gid_t asus_gid; | |
81 | module_param(asus_uid, uint, 0); | |
61a2d07d | 82 | MODULE_PARM_DESC(asus_uid, "UID for entries in /proc/acpi/asus"); |
1da177e4 | 83 | module_param(asus_gid, uint, 0); |
61a2d07d | 84 | MODULE_PARM_DESC(asus_gid, "GID for entries in /proc/acpi/asus"); |
1da177e4 | 85 | |
c6c38bac | 86 | /* For each model, all features implemented, |
1da177e4 LT |
87 | * those marked with R are relative to HOTK, A for absolute */ |
88 | struct model_data { | |
c6c38bac MD |
89 | char *name; /* name of the laptop________________A */ |
90 | char *mt_mled; /* method to handle mled_____________R */ | |
91 | char *mled_status; /* node to handle mled reading_______A */ | |
92 | char *mt_wled; /* method to handle wled_____________R */ | |
93 | char *wled_status; /* node to handle wled reading_______A */ | |
94 | char *mt_tled; /* method to handle tled_____________R */ | |
95 | char *tled_status; /* node to handle tled reading_______A */ | |
96 | char *mt_ledd; /* method to handle LED display______R */ | |
97 | char *mt_bt_switch; /* method to switch Bluetooth on/off_R */ | |
98 | char *bt_status; /* no model currently supports this__? */ | |
99 | char *mt_lcd_switch; /* method to turn LCD on/off_________A */ | |
100 | char *lcd_status; /* node to read LCD panel state______A */ | |
101 | char *brightness_up; /* method to set brightness up_______A */ | |
102 | char *brightness_down; /* method to set brightness down ____A */ | |
103 | char *brightness_set; /* method to set absolute brightness_R */ | |
104 | char *brightness_get; /* method to get absolute brightness_R */ | |
105 | char *brightness_status;/* node to get brightness____________A */ | |
106 | char *display_set; /* method to set video output________R */ | |
107 | char *display_get; /* method to get video output________R */ | |
1da177e4 LT |
108 | }; |
109 | ||
110 | /* | |
111 | * This is the main structure, we can use it to store anything interesting | |
112 | * about the hotk device | |
113 | */ | |
114 | struct asus_hotk { | |
c6c38bac MD |
115 | struct acpi_device *device; /* the device we are in */ |
116 | acpi_handle handle; /* the handle of the hotk device */ | |
117 | char status; /* status of the hotk, for LEDs */ | |
118 | u32 ledd_status; /* status of the LED display */ | |
119 | struct model_data *methods; /* methods available on the laptop */ | |
120 | u8 brightness; /* brightness level */ | |
1da177e4 | 121 | enum { |
c6c38bac MD |
122 | A1x = 0, /* A1340D, A1300F */ |
123 | A2x, /* A2500H */ | |
124 | A4G, /* A4700G */ | |
125 | D1x, /* D1 */ | |
126 | L2D, /* L2000D */ | |
127 | L3C, /* L3800C */ | |
128 | L3D, /* L3400D */ | |
129 | L3H, /* L3H, L2000E, L5D */ | |
130 | L4R, /* L4500R */ | |
131 | L5x, /* L5800C */ | |
132 | L8L, /* L8400L */ | |
133 | M1A, /* M1300A */ | |
134 | M2E, /* M2400E, L4400L */ | |
135 | M6N, /* M6800N, W3400N */ | |
136 | M6R, /* M6700R, A3000G */ | |
137 | P30, /* Samsung P30 */ | |
138 | S1x, /* S1300A, but also L1400B and M2400A (L84F) */ | |
139 | S2x, /* S200 (J1 reported), Victor MP-XP7210 */ | |
140 | W1N, /* W1000N */ | |
141 | W5A, /* W5A */ | |
142 | W3V, /* W3030V */ | |
143 | xxN, /* M2400N, M3700N, M5200N, M6800N, | |
144 | S1300N, S5200N*/ | |
145 | A4S, /* Z81sp */ | |
146 | F3Sa, /* (Centrino) */ | |
1021e211 | 147 | R1F, |
1da177e4 | 148 | END_MODEL |
c6c38bac MD |
149 | } model; /* Models currently supported */ |
150 | u16 event_count[128]; /* Count for each event TODO make this better */ | |
1da177e4 LT |
151 | }; |
152 | ||
153 | /* Here we go */ | |
154 | #define A1x_PREFIX "\\_SB.PCI0.ISA.EC0." | |
155 | #define L3C_PREFIX "\\_SB.PCI0.PX40.ECD0." | |
156 | #define M1A_PREFIX "\\_SB.PCI0.PX40.EC0." | |
157 | #define P30_PREFIX "\\_SB.PCI0.LPCB.EC0." | |
158 | #define S1x_PREFIX "\\_SB.PCI0.PX40." | |
159 | #define S2x_PREFIX A1x_PREFIX | |
160 | #define xxN_PREFIX "\\_SB.PCI0.SBRG.EC0." | |
161 | ||
162 | static struct model_data model_conf[END_MODEL] = { | |
4be44fcd | 163 | /* |
1da177e4 LT |
164 | * TODO I have seen a SWBX and AIBX method on some models, like L1400B, |
165 | * it seems to be a kind of switch, but what for ? | |
1da177e4 LT |
166 | */ |
167 | ||
168 | { | |
4be44fcd LB |
169 | .name = "A1x", |
170 | .mt_mled = "MLED", | |
171 | .mled_status = "\\MAIL", | |
172 | .mt_lcd_switch = A1x_PREFIX "_Q10", | |
173 | .lcd_status = "\\BKLI", | |
174 | .brightness_up = A1x_PREFIX "_Q0E", | |
175 | .brightness_down = A1x_PREFIX "_Q0F"}, | |
1da177e4 LT |
176 | |
177 | { | |
4be44fcd LB |
178 | .name = "A2x", |
179 | .mt_mled = "MLED", | |
180 | .mt_wled = "WLED", | |
181 | .wled_status = "\\SG66", | |
182 | .mt_lcd_switch = "\\Q10", | |
183 | .lcd_status = "\\BAOF", | |
184 | .brightness_set = "SPLV", | |
185 | .brightness_get = "GPLV", | |
186 | .display_set = "SDSP", | |
187 | .display_get = "\\INFB"}, | |
1da177e4 | 188 | |
f78c589d KK |
189 | { |
190 | .name = "A4G", | |
191 | .mt_mled = "MLED", | |
192 | /* WLED present, but not controlled by ACPI */ | |
193 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
194 | .brightness_set = "SPLV", | |
195 | .brightness_get = "GPLV", | |
196 | .display_set = "SDSP", | |
197 | .display_get = "\\ADVG"}, | |
198 | ||
1da177e4 | 199 | { |
4be44fcd LB |
200 | .name = "D1x", |
201 | .mt_mled = "MLED", | |
202 | .mt_lcd_switch = "\\Q0D", | |
203 | .lcd_status = "\\GP11", | |
204 | .brightness_up = "\\Q0C", | |
205 | .brightness_down = "\\Q0B", | |
206 | .brightness_status = "\\BLVL", | |
207 | .display_set = "SDSP", | |
208 | .display_get = "\\INFB"}, | |
1da177e4 LT |
209 | |
210 | { | |
4be44fcd LB |
211 | .name = "L2D", |
212 | .mt_mled = "MLED", | |
213 | .mled_status = "\\SGP6", | |
214 | .mt_wled = "WLED", | |
215 | .wled_status = "\\RCP3", | |
216 | .mt_lcd_switch = "\\Q10", | |
217 | .lcd_status = "\\SGP0", | |
218 | .brightness_up = "\\Q0E", | |
219 | .brightness_down = "\\Q0F", | |
220 | .display_set = "SDSP", | |
221 | .display_get = "\\INFB"}, | |
1da177e4 LT |
222 | |
223 | { | |
4be44fcd LB |
224 | .name = "L3C", |
225 | .mt_mled = "MLED", | |
226 | .mt_wled = "WLED", | |
227 | .mt_lcd_switch = L3C_PREFIX "_Q10", | |
228 | .lcd_status = "\\GL32", | |
229 | .brightness_set = "SPLV", | |
230 | .brightness_get = "GPLV", | |
231 | .display_set = "SDSP", | |
232 | .display_get = "\\_SB.PCI0.PCI1.VGAC.NMAP"}, | |
1da177e4 LT |
233 | |
234 | { | |
4be44fcd LB |
235 | .name = "L3D", |
236 | .mt_mled = "MLED", | |
237 | .mled_status = "\\MALD", | |
238 | .mt_wled = "WLED", | |
239 | .mt_lcd_switch = "\\Q10", | |
240 | .lcd_status = "\\BKLG", | |
241 | .brightness_set = "SPLV", | |
242 | .brightness_get = "GPLV", | |
243 | .display_set = "SDSP", | |
244 | .display_get = "\\INFB"}, | |
1da177e4 LT |
245 | |
246 | { | |
4be44fcd LB |
247 | .name = "L3H", |
248 | .mt_mled = "MLED", | |
249 | .mt_wled = "WLED", | |
250 | .mt_lcd_switch = "EHK", | |
251 | .lcd_status = "\\_SB.PCI0.PM.PBC", | |
252 | .brightness_set = "SPLV", | |
253 | .brightness_get = "GPLV", | |
254 | .display_set = "SDSP", | |
255 | .display_get = "\\INFB"}, | |
1da177e4 LT |
256 | |
257 | { | |
4be44fcd LB |
258 | .name = "L4R", |
259 | .mt_mled = "MLED", | |
260 | .mt_wled = "WLED", | |
261 | .wled_status = "\\_SB.PCI0.SBRG.SG13", | |
262 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
263 | .lcd_status = "\\_SB.PCI0.SBSM.SEO4", | |
264 | .brightness_set = "SPLV", | |
265 | .brightness_get = "GPLV", | |
266 | .display_set = "SDSP", | |
267 | .display_get = "\\_SB.PCI0.P0P1.VGA.GETD"}, | |
1da177e4 LT |
268 | |
269 | { | |
4be44fcd LB |
270 | .name = "L5x", |
271 | .mt_mled = "MLED", | |
1da177e4 | 272 | /* WLED present, but not controlled by ACPI */ |
4be44fcd LB |
273 | .mt_tled = "TLED", |
274 | .mt_lcd_switch = "\\Q0D", | |
275 | .lcd_status = "\\BAOF", | |
276 | .brightness_set = "SPLV", | |
277 | .brightness_get = "GPLV", | |
278 | .display_set = "SDSP", | |
279 | .display_get = "\\INFB"}, | |
1da177e4 LT |
280 | |
281 | { | |
4be44fcd | 282 | .name = "L8L" |
1da177e4 | 283 | /* No features, but at least support the hotkeys */ |
4be44fcd | 284 | }, |
1da177e4 LT |
285 | |
286 | { | |
4be44fcd LB |
287 | .name = "M1A", |
288 | .mt_mled = "MLED", | |
289 | .mt_lcd_switch = M1A_PREFIX "Q10", | |
290 | .lcd_status = "\\PNOF", | |
291 | .brightness_up = M1A_PREFIX "Q0E", | |
292 | .brightness_down = M1A_PREFIX "Q0F", | |
293 | .brightness_status = "\\BRIT", | |
294 | .display_set = "SDSP", | |
295 | .display_get = "\\INFB"}, | |
1da177e4 LT |
296 | |
297 | { | |
4be44fcd LB |
298 | .name = "M2E", |
299 | .mt_mled = "MLED", | |
300 | .mt_wled = "WLED", | |
301 | .mt_lcd_switch = "\\Q10", | |
302 | .lcd_status = "\\GP06", | |
303 | .brightness_set = "SPLV", | |
304 | .brightness_get = "GPLV", | |
305 | .display_set = "SDSP", | |
306 | .display_get = "\\INFB"}, | |
1da177e4 LT |
307 | |
308 | { | |
4be44fcd LB |
309 | .name = "M6N", |
310 | .mt_mled = "MLED", | |
311 | .mt_wled = "WLED", | |
312 | .wled_status = "\\_SB.PCI0.SBRG.SG13", | |
313 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
314 | .lcd_status = "\\_SB.BKLT", | |
315 | .brightness_set = "SPLV", | |
316 | .brightness_get = "GPLV", | |
317 | .display_set = "SDSP", | |
9becf5b9 KK |
318 | .display_get = "\\SSTE"}, |
319 | ||
1da177e4 | 320 | { |
4be44fcd LB |
321 | .name = "M6R", |
322 | .mt_mled = "MLED", | |
323 | .mt_wled = "WLED", | |
324 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
325 | .lcd_status = "\\_SB.PCI0.SBSM.SEO4", | |
326 | .brightness_set = "SPLV", | |
327 | .brightness_get = "GPLV", | |
328 | .display_set = "SDSP", | |
9becf5b9 | 329 | .display_get = "\\_SB.PCI0.P0P1.VGA.GETD"}, |
1da177e4 LT |
330 | |
331 | { | |
4be44fcd LB |
332 | .name = "P30", |
333 | .mt_wled = "WLED", | |
334 | .mt_lcd_switch = P30_PREFIX "_Q0E", | |
335 | .lcd_status = "\\BKLT", | |
336 | .brightness_up = P30_PREFIX "_Q68", | |
337 | .brightness_down = P30_PREFIX "_Q69", | |
338 | .brightness_get = "GPLV", | |
339 | .display_set = "SDSP", | |
340 | .display_get = "\\DNXT"}, | |
1da177e4 LT |
341 | |
342 | { | |
4be44fcd LB |
343 | .name = "S1x", |
344 | .mt_mled = "MLED", | |
345 | .mled_status = "\\EMLE", | |
346 | .mt_wled = "WLED", | |
347 | .mt_lcd_switch = S1x_PREFIX "Q10", | |
348 | .lcd_status = "\\PNOF", | |
349 | .brightness_set = "SPLV", | |
350 | .brightness_get = "GPLV"}, | |
1da177e4 LT |
351 | |
352 | { | |
4be44fcd LB |
353 | .name = "S2x", |
354 | .mt_mled = "MLED", | |
355 | .mled_status = "\\MAIL", | |
356 | .mt_lcd_switch = S2x_PREFIX "_Q10", | |
357 | .lcd_status = "\\BKLI", | |
358 | .brightness_up = S2x_PREFIX "_Q0B", | |
359 | .brightness_down = S2x_PREFIX "_Q0A"}, | |
1da177e4 | 360 | |
42cb8912 KK |
361 | { |
362 | .name = "W1N", | |
363 | .mt_mled = "MLED", | |
364 | .mt_wled = "WLED", | |
365 | .mt_ledd = "SLCM", | |
366 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
367 | .lcd_status = "\\BKLT", | |
368 | .brightness_set = "SPLV", | |
369 | .brightness_get = "GPLV", | |
370 | .display_set = "SDSP", | |
371 | .display_get = "\\ADVG"}, | |
372 | ||
e067aaa7 KK |
373 | { |
374 | .name = "W5A", | |
375 | .mt_bt_switch = "BLED", | |
376 | .mt_wled = "WLED", | |
377 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
378 | .brightness_set = "SPLV", | |
379 | .brightness_get = "GPLV", | |
380 | .display_set = "SDSP", | |
381 | .display_get = "\\ADVG"}, | |
382 | ||
1da177e4 | 383 | { |
288f3ad4 M |
384 | .name = "W3V", |
385 | .mt_mled = "MLED", | |
386 | .mt_wled = "WLED", | |
387 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
388 | .lcd_status = "\\BKLT", | |
389 | .brightness_set = "SPLV", | |
390 | .brightness_get = "GPLV", | |
391 | .display_set = "SDSP", | |
392 | .display_get = "\\INFB"}, | |
393 | ||
394 | { | |
4be44fcd LB |
395 | .name = "xxN", |
396 | .mt_mled = "MLED", | |
1da177e4 | 397 | /* WLED present, but not controlled by ACPI */ |
4be44fcd LB |
398 | .mt_lcd_switch = xxN_PREFIX "_Q10", |
399 | .lcd_status = "\\BKLT", | |
400 | .brightness_set = "SPLV", | |
401 | .brightness_get = "GPLV", | |
402 | .display_set = "SDSP", | |
1c0f0575 MC |
403 | .display_get = "\\ADVG"}, |
404 | ||
405 | { | |
406 | .name = "A4S", | |
407 | .brightness_set = "SPLV", | |
408 | .brightness_get = "GPLV", | |
409 | .mt_bt_switch = "BLED", | |
410 | .mt_wled = "WLED" | |
31e0729a LT |
411 | }, |
412 | ||
413 | { | |
414 | .name = "F3Sa", | |
415 | .mt_bt_switch = "BLED", | |
416 | .mt_wled = "WLED", | |
417 | .mt_mled = "MLED", | |
418 | .brightness_get = "GPLV", | |
419 | .brightness_set = "SPLV", | |
420 | .mt_lcd_switch = "\\_SB.PCI0.SBRG.EC0._Q10", | |
421 | .lcd_status = "\\_SB.PCI0.SBRG.EC0.RPIN", | |
422 | .display_get = "\\ADVG", | |
423 | .display_set = "SDSP", | |
424 | }, | |
1021e211 CC |
425 | { |
426 | .name = "R1F", | |
427 | .mt_bt_switch = "BLED", | |
428 | .mt_mled = "MLED", | |
429 | .mt_wled = "WLED", | |
430 | .mt_lcd_switch = "\\Q10", | |
431 | .lcd_status = "\\GP06", | |
432 | .brightness_set = "SPLV", | |
433 | .brightness_get = "GPLV", | |
434 | .display_set = "SDSP", | |
435 | .display_get = "\\INFB" | |
436 | } | |
1da177e4 LT |
437 | }; |
438 | ||
439 | /* procdir we use */ | |
440 | static struct proc_dir_entry *asus_proc_dir; | |
441 | ||
2039a6eb HM |
442 | static struct backlight_device *asus_backlight_device; |
443 | ||
1da177e4 LT |
444 | /* |
445 | * This header is made available to allow proper configuration given model, | |
446 | * revision number , ... this info cannot go in struct asus_hotk because it is | |
447 | * available before the hotk | |
448 | */ | |
449 | static struct acpi_table_header *asus_info; | |
450 | ||
451 | /* The actual device the driver binds to */ | |
452 | static struct asus_hotk *hotk; | |
453 | ||
454 | /* | |
1ba90e3a | 455 | * The hotkey driver and autoloading declaration |
1da177e4 LT |
456 | */ |
457 | static int asus_hotk_add(struct acpi_device *device); | |
458 | static int asus_hotk_remove(struct acpi_device *device, int type); | |
352fa202 BH |
459 | static void asus_hotk_notify(struct acpi_device *device, u32 event); |
460 | ||
1ba90e3a TR |
461 | static const struct acpi_device_id asus_device_ids[] = { |
462 | {"ATK0100", 0}, | |
463 | {"", 0}, | |
464 | }; | |
465 | MODULE_DEVICE_TABLE(acpi, asus_device_ids); | |
466 | ||
1da177e4 | 467 | static struct acpi_driver asus_hotk_driver = { |
c2b6705b | 468 | .name = "asus_acpi", |
4be44fcd | 469 | .class = ACPI_HOTK_CLASS, |
db7c554a | 470 | .owner = THIS_MODULE, |
1ba90e3a | 471 | .ids = asus_device_ids, |
352fa202 | 472 | .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, |
4be44fcd LB |
473 | .ops = { |
474 | .add = asus_hotk_add, | |
475 | .remove = asus_hotk_remove, | |
352fa202 | 476 | .notify = asus_hotk_notify, |
4be44fcd | 477 | }, |
1da177e4 LT |
478 | }; |
479 | ||
c6c38bac | 480 | /* |
1da177e4 LT |
481 | * This function evaluates an ACPI method, given an int as parameter, the |
482 | * method is searched within the scope of the handle, can be NULL. The output | |
483 | * of the method is written is output, which can also be NULL | |
484 | * | |
c6c38bac | 485 | * returns 1 if write is successful, 0 else. |
1da177e4 LT |
486 | */ |
487 | static int write_acpi_int(acpi_handle handle, const char *method, int val, | |
488 | struct acpi_buffer *output) | |
489 | { | |
c6c38bac MD |
490 | struct acpi_object_list params; /* list of input parameters (int) */ |
491 | union acpi_object in_obj; /* the only param we use */ | |
1da177e4 LT |
492 | acpi_status status; |
493 | ||
494 | params.count = 1; | |
495 | params.pointer = &in_obj; | |
496 | in_obj.type = ACPI_TYPE_INTEGER; | |
497 | in_obj.integer.value = val; | |
498 | ||
4be44fcd | 499 | status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); |
1da177e4 LT |
500 | return (status == AE_OK); |
501 | } | |
502 | ||
1da177e4 LT |
503 | static int read_acpi_int(acpi_handle handle, const char *method, int *val) |
504 | { | |
505 | struct acpi_buffer output; | |
506 | union acpi_object out_obj; | |
507 | acpi_status status; | |
508 | ||
509 | output.length = sizeof(out_obj); | |
510 | output.pointer = &out_obj; | |
511 | ||
4be44fcd | 512 | status = acpi_evaluate_object(handle, (char *)method, NULL, &output); |
1da177e4 LT |
513 | *val = out_obj.integer.value; |
514 | return (status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER); | |
515 | } | |
516 | ||
ff93be5d | 517 | static int asus_info_proc_show(struct seq_file *m, void *v) |
1da177e4 | 518 | { |
1da177e4 | 519 | int temp; |
1da177e4 | 520 | |
ff93be5d AD |
521 | seq_printf(m, ACPI_HOTK_NAME " " ASUS_ACPI_VERSION "\n"); |
522 | seq_printf(m, "Model reference : %s\n", hotk->methods->name); | |
c6c38bac MD |
523 | /* |
524 | * The SFUN method probably allows the original driver to get the list | |
525 | * of features supported by a given model. For now, 0x0100 or 0x0800 | |
1da177e4 LT |
526 | * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. |
527 | * The significance of others is yet to be found. | |
528 | */ | |
529 | if (read_acpi_int(hotk->handle, "SFUN", &temp)) | |
ff93be5d | 530 | seq_printf(m, "SFUN value : 0x%04x\n", temp); |
1da177e4 LT |
531 | /* |
532 | * Another value for userspace: the ASYM method returns 0x02 for | |
533 | * battery low and 0x04 for battery critical, its readings tend to be | |
c6c38bac | 534 | * more accurate than those provided by _BST. |
1da177e4 LT |
535 | * Note: since not all the laptops provide this method, errors are |
536 | * silently ignored. | |
537 | */ | |
538 | if (read_acpi_int(hotk->handle, "ASYM", &temp)) | |
ff93be5d | 539 | seq_printf(m, "ASYM value : 0x%04x\n", temp); |
1da177e4 | 540 | if (asus_info) { |
ff93be5d AD |
541 | seq_printf(m, "DSDT length : %d\n", asus_info->length); |
542 | seq_printf(m, "DSDT checksum : %d\n", asus_info->checksum); | |
543 | seq_printf(m, "DSDT revision : %d\n", asus_info->revision); | |
544 | seq_printf(m, "OEM id : %.*s\n", ACPI_OEM_ID_SIZE, asus_info->oem_id); | |
545 | seq_printf(m, "OEM table id : %.*s\n", ACPI_OEM_TABLE_ID_SIZE, asus_info->oem_table_id); | |
546 | seq_printf(m, "OEM revision : 0x%x\n", asus_info->oem_revision); | |
547 | seq_printf(m, "ASL comp vendor id : %.*s\n", ACPI_NAME_SIZE, asus_info->asl_compiler_id); | |
548 | seq_printf(m, "ASL comp revision : 0x%x\n", asus_info->asl_compiler_revision); | |
1da177e4 LT |
549 | } |
550 | ||
ff93be5d AD |
551 | return 0; |
552 | } | |
553 | ||
554 | static int asus_info_proc_open(struct inode *inode, struct file *file) | |
555 | { | |
556 | return single_open(file, asus_info_proc_show, NULL); | |
1da177e4 LT |
557 | } |
558 | ||
ff93be5d AD |
559 | static const struct file_operations asus_info_proc_fops = { |
560 | .owner = THIS_MODULE, | |
561 | .open = asus_info_proc_open, | |
562 | .read = seq_read, | |
563 | .llseek = seq_lseek, | |
564 | .release = single_release, | |
565 | }; | |
566 | ||
1da177e4 LT |
567 | /* |
568 | * /proc handlers | |
569 | * We write our info in page, we begin at offset off and cannot write more | |
570 | * than count bytes. We set eof to 1 if we handle those 2 values. We return the | |
571 | * number of bytes written in page | |
572 | */ | |
573 | ||
574 | /* Generic LED functions */ | |
4be44fcd | 575 | static int read_led(const char *ledname, int ledmask) |
1da177e4 LT |
576 | { |
577 | if (ledname) { | |
578 | int led_status; | |
579 | ||
580 | if (read_acpi_int(NULL, ledname, &led_status)) | |
581 | return led_status; | |
582 | else | |
583 | printk(KERN_WARNING "Asus ACPI: Error reading LED " | |
584 | "status\n"); | |
585 | } | |
586 | return (hotk->status & ledmask) ? 1 : 0; | |
587 | } | |
588 | ||
c6c38bac | 589 | static int parse_arg(const char __user *buf, unsigned long count, int *val) |
1da177e4 LT |
590 | { |
591 | char s[32]; | |
592 | if (!count) | |
593 | return 0; | |
594 | if (count > 31) | |
595 | return -EINVAL; | |
596 | if (copy_from_user(s, buf, count)) | |
597 | return -EFAULT; | |
598 | s[count] = 0; | |
599 | if (sscanf(s, "%i", val) != 1) | |
600 | return -EINVAL; | |
601 | return count; | |
602 | } | |
603 | ||
604 | /* FIXME: kill extraneous args so it can be called independently */ | |
605 | static int | |
c6c38bac | 606 | write_led(const char __user *buffer, unsigned long count, |
4be44fcd | 607 | char *ledname, int ledmask, int invert) |
1da177e4 | 608 | { |
6311f0da | 609 | int rv, value; |
1da177e4 LT |
610 | int led_out = 0; |
611 | ||
6311f0da DJ |
612 | rv = parse_arg(buffer, count, &value); |
613 | if (rv > 0) | |
1da177e4 LT |
614 | led_out = value ? 1 : 0; |
615 | ||
616 | hotk->status = | |
617 | (led_out) ? (hotk->status | ledmask) : (hotk->status & ~ledmask); | |
618 | ||
4be44fcd | 619 | if (invert) /* invert target value */ |
abc5a87f | 620 | led_out = !led_out; |
1da177e4 LT |
621 | |
622 | if (!write_acpi_int(hotk->handle, ledname, led_out, NULL)) | |
4be44fcd LB |
623 | printk(KERN_WARNING "Asus ACPI: LED (%s) write failed\n", |
624 | ledname); | |
1da177e4 | 625 | |
6311f0da | 626 | return rv; |
1da177e4 LT |
627 | } |
628 | ||
1da177e4 LT |
629 | /* |
630 | * Proc handlers for MLED | |
631 | */ | |
ff93be5d | 632 | static int mled_proc_show(struct seq_file *m, void *v) |
1da177e4 | 633 | { |
ff93be5d AD |
634 | seq_printf(m, "%d\n", read_led(hotk->methods->mled_status, MLED_ON)); |
635 | return 0; | |
1da177e4 LT |
636 | } |
637 | ||
ff93be5d AD |
638 | static int mled_proc_open(struct inode *inode, struct file *file) |
639 | { | |
640 | return single_open(file, mled_proc_show, NULL); | |
641 | } | |
642 | ||
643 | static ssize_t mled_proc_write(struct file *file, const char __user *buffer, | |
644 | size_t count, loff_t *pos) | |
1da177e4 LT |
645 | { |
646 | return write_led(buffer, count, hotk->methods->mt_mled, MLED_ON, 1); | |
647 | } | |
648 | ||
ff93be5d AD |
649 | static const struct file_operations mled_proc_fops = { |
650 | .owner = THIS_MODULE, | |
651 | .open = mled_proc_open, | |
652 | .read = seq_read, | |
653 | .llseek = seq_lseek, | |
654 | .release = single_release, | |
655 | .write = mled_proc_write, | |
656 | }; | |
657 | ||
42cb8912 KK |
658 | /* |
659 | * Proc handlers for LED display | |
660 | */ | |
ff93be5d | 661 | static int ledd_proc_show(struct seq_file *m, void *v) |
42cb8912 | 662 | { |
ff93be5d AD |
663 | seq_printf(m, "0x%08x\n", hotk->ledd_status); |
664 | return 0; | |
42cb8912 KK |
665 | } |
666 | ||
ff93be5d AD |
667 | static int ledd_proc_open(struct inode *inode, struct file *file) |
668 | { | |
669 | return single_open(file, ledd_proc_show, NULL); | |
670 | } | |
671 | ||
672 | static ssize_t ledd_proc_write(struct file *file, const char __user *buffer, | |
673 | size_t count, loff_t *pos) | |
42cb8912 | 674 | { |
6311f0da | 675 | int rv, value; |
42cb8912 | 676 | |
6311f0da DJ |
677 | rv = parse_arg(buffer, count, &value); |
678 | if (rv > 0) { | |
42cb8912 KK |
679 | if (!write_acpi_int |
680 | (hotk->handle, hotk->methods->mt_ledd, value, NULL)) | |
681 | printk(KERN_WARNING | |
682 | "Asus ACPI: LED display write failed\n"); | |
683 | else | |
684 | hotk->ledd_status = (u32) value; | |
6df05702 | 685 | } |
6311f0da | 686 | return rv; |
42cb8912 KK |
687 | } |
688 | ||
ff93be5d AD |
689 | static const struct file_operations ledd_proc_fops = { |
690 | .owner = THIS_MODULE, | |
691 | .open = ledd_proc_open, | |
692 | .read = seq_read, | |
693 | .llseek = seq_lseek, | |
694 | .release = single_release, | |
695 | .write = ledd_proc_write, | |
696 | }; | |
697 | ||
1da177e4 LT |
698 | /* |
699 | * Proc handlers for WLED | |
700 | */ | |
ff93be5d | 701 | static int wled_proc_show(struct seq_file *m, void *v) |
1da177e4 | 702 | { |
ff93be5d AD |
703 | seq_printf(m, "%d\n", read_led(hotk->methods->wled_status, WLED_ON)); |
704 | return 0; | |
1da177e4 LT |
705 | } |
706 | ||
ff93be5d AD |
707 | static int wled_proc_open(struct inode *inode, struct file *file) |
708 | { | |
709 | return single_open(file, wled_proc_show, NULL); | |
710 | } | |
711 | ||
712 | static ssize_t wled_proc_write(struct file *file, const char __user *buffer, | |
713 | size_t count, loff_t *pos) | |
1da177e4 LT |
714 | { |
715 | return write_led(buffer, count, hotk->methods->mt_wled, WLED_ON, 0); | |
716 | } | |
717 | ||
ff93be5d AD |
718 | static const struct file_operations wled_proc_fops = { |
719 | .owner = THIS_MODULE, | |
720 | .open = wled_proc_open, | |
721 | .read = seq_read, | |
722 | .llseek = seq_lseek, | |
723 | .release = single_release, | |
724 | .write = wled_proc_write, | |
725 | }; | |
726 | ||
e067aaa7 KK |
727 | /* |
728 | * Proc handlers for Bluetooth | |
729 | */ | |
ff93be5d | 730 | static int bluetooth_proc_show(struct seq_file *m, void *v) |
e067aaa7 | 731 | { |
ff93be5d AD |
732 | seq_printf(m, "%d\n", read_led(hotk->methods->bt_status, BT_ON)); |
733 | return 0; | |
e067aaa7 KK |
734 | } |
735 | ||
ff93be5d AD |
736 | static int bluetooth_proc_open(struct inode *inode, struct file *file) |
737 | { | |
738 | return single_open(file, bluetooth_proc_show, NULL); | |
739 | } | |
740 | ||
741 | static ssize_t bluetooth_proc_write(struct file *file, | |
742 | const char __user *buffer, size_t count, loff_t *pos) | |
e067aaa7 | 743 | { |
c6c38bac | 744 | /* Note: mt_bt_switch controls both internal Bluetooth adapter's |
e067aaa7 KK |
745 | presence and its LED */ |
746 | return write_led(buffer, count, hotk->methods->mt_bt_switch, BT_ON, 0); | |
747 | } | |
748 | ||
ff93be5d AD |
749 | static const struct file_operations bluetooth_proc_fops = { |
750 | .owner = THIS_MODULE, | |
751 | .open = bluetooth_proc_open, | |
752 | .read = seq_read, | |
753 | .llseek = seq_lseek, | |
754 | .release = single_release, | |
755 | .write = bluetooth_proc_write, | |
756 | }; | |
757 | ||
1da177e4 LT |
758 | /* |
759 | * Proc handlers for TLED | |
760 | */ | |
ff93be5d | 761 | static int tled_proc_show(struct seq_file *m, void *v) |
1da177e4 | 762 | { |
ff93be5d AD |
763 | seq_printf(m, "%d\n", read_led(hotk->methods->tled_status, TLED_ON)); |
764 | return 0; | |
1da177e4 LT |
765 | } |
766 | ||
ff93be5d AD |
767 | static int tled_proc_open(struct inode *inode, struct file *file) |
768 | { | |
769 | return single_open(file, tled_proc_show, NULL); | |
770 | } | |
771 | ||
772 | static ssize_t tled_proc_write(struct file *file, const char __user *buffer, | |
773 | size_t count, loff_t *pos) | |
1da177e4 LT |
774 | { |
775 | return write_led(buffer, count, hotk->methods->mt_tled, TLED_ON, 0); | |
776 | } | |
777 | ||
ff93be5d AD |
778 | static const struct file_operations tled_proc_fops = { |
779 | .owner = THIS_MODULE, | |
780 | .open = tled_proc_open, | |
781 | .read = seq_read, | |
782 | .llseek = seq_lseek, | |
783 | .release = single_release, | |
784 | .write = tled_proc_write, | |
785 | }; | |
786 | ||
1da177e4 LT |
787 | static int get_lcd_state(void) |
788 | { | |
789 | int lcd = 0; | |
790 | ||
31e0729a LT |
791 | if (hotk->model == L3H) { |
792 | /* L3H and the like have to be handled differently */ | |
1da177e4 LT |
793 | acpi_status status = 0; |
794 | struct acpi_object_list input; | |
795 | union acpi_object mt_params[2]; | |
796 | struct acpi_buffer output; | |
797 | union acpi_object out_obj; | |
4be44fcd | 798 | |
1da177e4 LT |
799 | input.count = 2; |
800 | input.pointer = mt_params; | |
c6c38bac | 801 | /* Note: the following values are partly guessed up, but |
1da177e4 LT |
802 | otherwise they seem to work */ |
803 | mt_params[0].type = ACPI_TYPE_INTEGER; | |
804 | mt_params[0].integer.value = 0x02; | |
805 | mt_params[1].type = ACPI_TYPE_INTEGER; | |
806 | mt_params[1].integer.value = 0x02; | |
807 | ||
808 | output.length = sizeof(out_obj); | |
809 | output.pointer = &out_obj; | |
4be44fcd LB |
810 | |
811 | status = | |
812 | acpi_evaluate_object(NULL, hotk->methods->lcd_status, | |
813 | &input, &output); | |
1da177e4 LT |
814 | if (status != AE_OK) |
815 | return -1; | |
816 | if (out_obj.type == ACPI_TYPE_INTEGER) | |
817 | /* That's what the AML code does */ | |
818 | lcd = out_obj.integer.value >> 8; | |
31e0729a | 819 | } else if (hotk->model == F3Sa) { |
27663c58 | 820 | unsigned long long tmp; |
31e0729a LT |
821 | union acpi_object param; |
822 | struct acpi_object_list input; | |
823 | acpi_status status; | |
824 | ||
825 | /* Read pin 11 */ | |
826 | param.type = ACPI_TYPE_INTEGER; | |
827 | param.integer.value = 0x11; | |
828 | input.count = 1; | |
829 | input.pointer = ¶m; | |
830 | ||
831 | status = acpi_evaluate_integer(NULL, hotk->methods->lcd_status, | |
832 | &input, &tmp); | |
833 | if (status != AE_OK) | |
834 | return -1; | |
835 | ||
836 | lcd = tmp; | |
837 | } else { | |
838 | /* We don't have to check anything if we are here */ | |
839 | if (!read_acpi_int(NULL, hotk->methods->lcd_status, &lcd)) | |
840 | printk(KERN_WARNING | |
841 | "Asus ACPI: Error reading LCD status\n"); | |
842 | ||
843 | if (hotk->model == L2D) | |
844 | lcd = ~lcd; | |
1da177e4 | 845 | } |
4be44fcd | 846 | |
1da177e4 LT |
847 | return (lcd & 1); |
848 | } | |
849 | ||
850 | static int set_lcd_state(int value) | |
851 | { | |
852 | int lcd = 0; | |
853 | acpi_status status = 0; | |
854 | ||
855 | lcd = value ? 1 : 0; | |
856 | if (lcd != get_lcd_state()) { | |
857 | /* switch */ | |
858 | if (hotk->model != L3H) { | |
859 | status = | |
4be44fcd LB |
860 | acpi_evaluate_object(NULL, |
861 | hotk->methods->mt_lcd_switch, | |
1da177e4 | 862 | NULL, NULL); |
c6c38bac MD |
863 | } else { |
864 | /* L3H and the like must be handled differently */ | |
4be44fcd LB |
865 | if (!write_acpi_int |
866 | (hotk->handle, hotk->methods->mt_lcd_switch, 0x07, | |
867 | NULL)) | |
1da177e4 | 868 | status = AE_ERROR; |
c6c38bac | 869 | /* L3H's AML executes EHK (0x07) upon Fn+F7 keypress, |
1da177e4 LT |
870 | the exact behaviour is simulated here */ |
871 | } | |
872 | if (ACPI_FAILURE(status)) | |
873 | printk(KERN_WARNING "Asus ACPI: Error switching LCD\n"); | |
874 | } | |
875 | return 0; | |
876 | ||
877 | } | |
878 | ||
ff93be5d | 879 | static int lcd_proc_show(struct seq_file *m, void *v) |
1da177e4 | 880 | { |
ff93be5d AD |
881 | seq_printf(m, "%d\n", get_lcd_state()); |
882 | return 0; | |
1da177e4 LT |
883 | } |
884 | ||
ff93be5d AD |
885 | static int lcd_proc_open(struct inode *inode, struct file *file) |
886 | { | |
887 | return single_open(file, lcd_proc_show, NULL); | |
888 | } | |
889 | ||
890 | static ssize_t lcd_proc_write(struct file *file, const char __user *buffer, | |
891 | size_t count, loff_t *pos) | |
1da177e4 | 892 | { |
6311f0da | 893 | int rv, value; |
4be44fcd | 894 | |
6311f0da DJ |
895 | rv = parse_arg(buffer, count, &value); |
896 | if (rv > 0) | |
1da177e4 | 897 | set_lcd_state(value); |
6311f0da | 898 | return rv; |
1da177e4 LT |
899 | } |
900 | ||
ff93be5d AD |
901 | static const struct file_operations lcd_proc_fops = { |
902 | .owner = THIS_MODULE, | |
903 | .open = lcd_proc_open, | |
904 | .read = seq_read, | |
905 | .llseek = seq_lseek, | |
906 | .release = single_release, | |
907 | .write = lcd_proc_write, | |
908 | }; | |
909 | ||
2039a6eb | 910 | static int read_brightness(struct backlight_device *bd) |
1da177e4 LT |
911 | { |
912 | int value; | |
4be44fcd LB |
913 | |
914 | if (hotk->methods->brightness_get) { /* SPLV/GPLV laptop */ | |
915 | if (!read_acpi_int(hotk->handle, hotk->methods->brightness_get, | |
1da177e4 | 916 | &value)) |
4be44fcd LB |
917 | printk(KERN_WARNING |
918 | "Asus ACPI: Error reading brightness\n"); | |
919 | } else if (hotk->methods->brightness_status) { /* For D1 for example */ | |
920 | if (!read_acpi_int(NULL, hotk->methods->brightness_status, | |
1da177e4 | 921 | &value)) |
4be44fcd LB |
922 | printk(KERN_WARNING |
923 | "Asus ACPI: Error reading brightness\n"); | |
924 | } else /* No GPLV method */ | |
1da177e4 LT |
925 | value = hotk->brightness; |
926 | return value; | |
927 | } | |
928 | ||
929 | /* | |
930 | * Change the brightness level | |
931 | */ | |
2039a6eb | 932 | static int set_brightness(int value) |
1da177e4 LT |
933 | { |
934 | acpi_status status = 0; | |
2039a6eb | 935 | int ret = 0; |
1da177e4 LT |
936 | |
937 | /* SPLV laptop */ | |
4be44fcd LB |
938 | if (hotk->methods->brightness_set) { |
939 | if (!write_acpi_int(hotk->handle, hotk->methods->brightness_set, | |
1da177e4 | 940 | value, NULL)) |
4be44fcd LB |
941 | printk(KERN_WARNING |
942 | "Asus ACPI: Error changing brightness\n"); | |
2039a6eb HM |
943 | ret = -EIO; |
944 | goto out; | |
1da177e4 LT |
945 | } |
946 | ||
947 | /* No SPLV method if we are here, act as appropriate */ | |
2039a6eb | 948 | value -= read_brightness(NULL); |
1da177e4 | 949 | while (value != 0) { |
4be44fcd LB |
950 | status = acpi_evaluate_object(NULL, (value > 0) ? |
951 | hotk->methods->brightness_up : | |
1da177e4 LT |
952 | hotk->methods->brightness_down, |
953 | NULL, NULL); | |
954 | (value > 0) ? value-- : value++; | |
955 | if (ACPI_FAILURE(status)) | |
4be44fcd LB |
956 | printk(KERN_WARNING |
957 | "Asus ACPI: Error changing brightness\n"); | |
2039a6eb | 958 | ret = -EIO; |
1da177e4 | 959 | } |
2039a6eb HM |
960 | out: |
961 | return ret; | |
962 | } | |
963 | ||
964 | static int set_brightness_status(struct backlight_device *bd) | |
965 | { | |
599a52d1 | 966 | return set_brightness(bd->props.brightness); |
1da177e4 LT |
967 | } |
968 | ||
ff93be5d | 969 | static int brn_proc_show(struct seq_file *m, void *v) |
1da177e4 | 970 | { |
ff93be5d AD |
971 | seq_printf(m, "%d\n", read_brightness(NULL)); |
972 | return 0; | |
1da177e4 LT |
973 | } |
974 | ||
ff93be5d AD |
975 | static int brn_proc_open(struct inode *inode, struct file *file) |
976 | { | |
977 | return single_open(file, brn_proc_show, NULL); | |
978 | } | |
979 | ||
980 | static ssize_t brn_proc_write(struct file *file, const char __user *buffer, | |
981 | size_t count, loff_t *pos) | |
1da177e4 | 982 | { |
6311f0da | 983 | int rv, value; |
1da177e4 | 984 | |
6311f0da DJ |
985 | rv = parse_arg(buffer, count, &value); |
986 | if (rv > 0) { | |
1da177e4 | 987 | value = (0 < value) ? ((15 < value) ? 15 : value) : 0; |
4be44fcd | 988 | /* 0 <= value <= 15 */ |
1da177e4 | 989 | set_brightness(value); |
1da177e4 | 990 | } |
6311f0da | 991 | return rv; |
1da177e4 LT |
992 | } |
993 | ||
ff93be5d AD |
994 | static const struct file_operations brn_proc_fops = { |
995 | .owner = THIS_MODULE, | |
996 | .open = brn_proc_open, | |
997 | .read = seq_read, | |
998 | .llseek = seq_lseek, | |
999 | .release = single_release, | |
1000 | .write = brn_proc_write, | |
1001 | }; | |
1002 | ||
1da177e4 LT |
1003 | static void set_display(int value) |
1004 | { | |
1005 | /* no sanity check needed for now */ | |
4be44fcd | 1006 | if (!write_acpi_int(hotk->handle, hotk->methods->display_set, |
1da177e4 LT |
1007 | value, NULL)) |
1008 | printk(KERN_WARNING "Asus ACPI: Error setting display\n"); | |
1009 | return; | |
1010 | } | |
1011 | ||
1012 | /* | |
c6c38bac | 1013 | * Now, *this* one could be more user-friendly, but so far, no-one has |
1da177e4 LT |
1014 | * complained. The significance of bits is the same as in proc_write_disp() |
1015 | */ | |
ff93be5d | 1016 | static int disp_proc_show(struct seq_file *m, void *v) |
1da177e4 LT |
1017 | { |
1018 | int value = 0; | |
4be44fcd | 1019 | |
1da177e4 | 1020 | if (!read_acpi_int(hotk->handle, hotk->methods->display_get, &value)) |
4be44fcd LB |
1021 | printk(KERN_WARNING |
1022 | "Asus ACPI: Error reading display status\n"); | |
c6c38bac | 1023 | value &= 0x07; /* needed for some models, shouldn't hurt others */ |
ff93be5d AD |
1024 | seq_printf(m, "%d\n", value); |
1025 | return 0; | |
1026 | } | |
1027 | ||
1028 | static int disp_proc_open(struct inode *inode, struct file *file) | |
1029 | { | |
1030 | return single_open(file, disp_proc_show, NULL); | |
1da177e4 LT |
1031 | } |
1032 | ||
1033 | /* | |
c6c38bac MD |
1034 | * Experimental support for display switching. As of now: 1 should activate |
1035 | * the LCD output, 2 should do for CRT, and 4 for TV-Out. Any combination | |
1036 | * (bitwise) of these will suffice. I never actually tested 3 displays hooked | |
1037 | * up simultaneously, so be warned. See the acpi4asus README for more info. | |
1da177e4 | 1038 | */ |
ff93be5d AD |
1039 | static ssize_t disp_proc_write(struct file *file, const char __user *buffer, |
1040 | size_t count, loff_t *pos) | |
1da177e4 | 1041 | { |
6311f0da | 1042 | int rv, value; |
1da177e4 | 1043 | |
6311f0da DJ |
1044 | rv = parse_arg(buffer, count, &value); |
1045 | if (rv > 0) | |
1da177e4 | 1046 | set_display(value); |
6311f0da | 1047 | return rv; |
1da177e4 LT |
1048 | } |
1049 | ||
ff93be5d AD |
1050 | static const struct file_operations disp_proc_fops = { |
1051 | .owner = THIS_MODULE, | |
1052 | .open = disp_proc_open, | |
1053 | .read = seq_read, | |
1054 | .llseek = seq_lseek, | |
1055 | .release = single_release, | |
1056 | .write = disp_proc_write, | |
1057 | }; | |
1da177e4 LT |
1058 | |
1059 | static int | |
ff93be5d | 1060 | asus_proc_add(char *name, const struct file_operations *proc_fops, mode_t mode, |
4be44fcd | 1061 | struct acpi_device *device) |
1da177e4 | 1062 | { |
ff93be5d AD |
1063 | struct proc_dir_entry *proc; |
1064 | ||
1065 | proc = proc_create_data(name, mode, acpi_device_dir(device), | |
1066 | proc_fops, acpi_driver_data(device)); | |
4be44fcd | 1067 | if (!proc) { |
1da177e4 LT |
1068 | printk(KERN_WARNING " Unable to create %s fs entry\n", name); |
1069 | return -1; | |
1070 | } | |
1da177e4 LT |
1071 | proc->uid = asus_uid; |
1072 | proc->gid = asus_gid; | |
1073 | return 0; | |
1074 | } | |
1075 | ||
200739c1 | 1076 | static int asus_hotk_add_fs(struct acpi_device *device) |
1da177e4 LT |
1077 | { |
1078 | struct proc_dir_entry *proc; | |
1079 | mode_t mode; | |
4be44fcd | 1080 | |
1da177e4 LT |
1081 | /* |
1082 | * If parameter uid or gid is not changed, keep the default setting for | |
1083 | * our proc entries (-rw-rw-rw-) else, it means we care about security, | |
1084 | * and then set to -rw-rw---- | |
1085 | */ | |
1086 | ||
4be44fcd | 1087 | if ((asus_uid == 0) && (asus_gid == 0)) { |
1da177e4 LT |
1088 | mode = S_IFREG | S_IRUGO | S_IWUGO; |
1089 | } else { | |
1090 | mode = S_IFREG | S_IRUSR | S_IRGRP | S_IWUSR | S_IWGRP; | |
aea19aa0 KK |
1091 | printk(KERN_WARNING " asus_uid and asus_gid parameters are " |
1092 | "deprecated, use chown and chmod instead!\n"); | |
1da177e4 LT |
1093 | } |
1094 | ||
1095 | acpi_device_dir(device) = asus_proc_dir; | |
1096 | if (!acpi_device_dir(device)) | |
1097 | return -ENODEV; | |
1098 | ||
ff93be5d AD |
1099 | proc = proc_create(PROC_INFO, mode, acpi_device_dir(device), |
1100 | &asus_info_proc_fops); | |
1da177e4 | 1101 | if (proc) { |
1da177e4 LT |
1102 | proc->uid = asus_uid; |
1103 | proc->gid = asus_gid; | |
1104 | } else { | |
1105 | printk(KERN_WARNING " Unable to create " PROC_INFO | |
1106 | " fs entry\n"); | |
1107 | } | |
1108 | ||
1109 | if (hotk->methods->mt_wled) { | |
ff93be5d | 1110 | asus_proc_add(PROC_WLED, &wled_proc_fops, mode, device); |
1da177e4 LT |
1111 | } |
1112 | ||
42cb8912 | 1113 | if (hotk->methods->mt_ledd) { |
ff93be5d | 1114 | asus_proc_add(PROC_LEDD, &ledd_proc_fops, mode, device); |
42cb8912 KK |
1115 | } |
1116 | ||
1da177e4 | 1117 | if (hotk->methods->mt_mled) { |
ff93be5d | 1118 | asus_proc_add(PROC_MLED, &mled_proc_fops, mode, device); |
1da177e4 LT |
1119 | } |
1120 | ||
1121 | if (hotk->methods->mt_tled) { | |
ff93be5d | 1122 | asus_proc_add(PROC_TLED, &tled_proc_fops, mode, device); |
1da177e4 LT |
1123 | } |
1124 | ||
e067aaa7 | 1125 | if (hotk->methods->mt_bt_switch) { |
ff93be5d | 1126 | asus_proc_add(PROC_BT, &bluetooth_proc_fops, mode, device); |
e067aaa7 KK |
1127 | } |
1128 | ||
c6c38bac MD |
1129 | /* |
1130 | * We need both read node and write method as LCD switch is also | |
1131 | * accessible from the keyboard | |
1da177e4 LT |
1132 | */ |
1133 | if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) { | |
ff93be5d | 1134 | asus_proc_add(PROC_LCD, &lcd_proc_fops, mode, device); |
1da177e4 | 1135 | } |
4be44fcd | 1136 | |
1da177e4 LT |
1137 | if ((hotk->methods->brightness_up && hotk->methods->brightness_down) || |
1138 | (hotk->methods->brightness_get && hotk->methods->brightness_set)) { | |
ff93be5d | 1139 | asus_proc_add(PROC_BRN, &brn_proc_fops, mode, device); |
1da177e4 LT |
1140 | } |
1141 | ||
1142 | if (hotk->methods->display_set) { | |
ff93be5d | 1143 | asus_proc_add(PROC_DISP, &disp_proc_fops, mode, device); |
1da177e4 LT |
1144 | } |
1145 | ||
1146 | return 0; | |
1147 | } | |
1148 | ||
4be44fcd | 1149 | static int asus_hotk_remove_fs(struct acpi_device *device) |
1da177e4 | 1150 | { |
4be44fcd LB |
1151 | if (acpi_device_dir(device)) { |
1152 | remove_proc_entry(PROC_INFO, acpi_device_dir(device)); | |
1da177e4 | 1153 | if (hotk->methods->mt_wled) |
4be44fcd | 1154 | remove_proc_entry(PROC_WLED, acpi_device_dir(device)); |
1da177e4 | 1155 | if (hotk->methods->mt_mled) |
4be44fcd | 1156 | remove_proc_entry(PROC_MLED, acpi_device_dir(device)); |
1da177e4 | 1157 | if (hotk->methods->mt_tled) |
4be44fcd | 1158 | remove_proc_entry(PROC_TLED, acpi_device_dir(device)); |
42cb8912 KK |
1159 | if (hotk->methods->mt_ledd) |
1160 | remove_proc_entry(PROC_LEDD, acpi_device_dir(device)); | |
e067aaa7 KK |
1161 | if (hotk->methods->mt_bt_switch) |
1162 | remove_proc_entry(PROC_BT, acpi_device_dir(device)); | |
1da177e4 LT |
1163 | if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) |
1164 | remove_proc_entry(PROC_LCD, acpi_device_dir(device)); | |
4be44fcd LB |
1165 | if ((hotk->methods->brightness_up |
1166 | && hotk->methods->brightness_down) | |
1167 | || (hotk->methods->brightness_get | |
1168 | && hotk->methods->brightness_set)) | |
1da177e4 LT |
1169 | remove_proc_entry(PROC_BRN, acpi_device_dir(device)); |
1170 | if (hotk->methods->display_set) | |
1171 | remove_proc_entry(PROC_DISP, acpi_device_dir(device)); | |
1172 | } | |
1173 | return 0; | |
1174 | } | |
1175 | ||
352fa202 | 1176 | static void asus_hotk_notify(struct acpi_device *device, u32 event) |
1da177e4 | 1177 | { |
4be44fcd | 1178 | /* TODO Find a better way to handle events count. */ |
1da177e4 LT |
1179 | if (!hotk) |
1180 | return; | |
1181 | ||
352fa202 BH |
1182 | /* |
1183 | * The BIOS *should* be sending us device events, but apparently | |
1184 | * Asus uses system events instead, so just ignore any device | |
1185 | * events we get. | |
1186 | */ | |
1187 | if (event > ACPI_MAX_SYS_NOTIFY) | |
1188 | return; | |
1189 | ||
c6c38bac | 1190 | if ((event & ~((u32) BR_UP)) < 16) |
1da177e4 | 1191 | hotk->brightness = (event & ~((u32) BR_UP)); |
c6c38bac | 1192 | else if ((event & ~((u32) BR_DOWN)) < 16) |
1da177e4 | 1193 | hotk->brightness = (event & ~((u32) BR_DOWN)); |
1da177e4 | 1194 | |
14e04fb3 | 1195 | acpi_bus_generate_proc_event(hotk->device, event, |
1da177e4 LT |
1196 | hotk->event_count[event % 128]++); |
1197 | ||
1198 | return; | |
1199 | } | |
1200 | ||
ffab0d95 KK |
1201 | /* |
1202 | * Match the model string to the list of supported models. Return END_MODEL if | |
1203 | * no match or model is NULL. | |
1204 | */ | |
1205 | static int asus_model_match(char *model) | |
1206 | { | |
1207 | if (model == NULL) | |
1208 | return END_MODEL; | |
1209 | ||
1210 | if (strncmp(model, "L3D", 3) == 0) | |
1211 | return L3D; | |
1212 | else if (strncmp(model, "L2E", 3) == 0 || | |
1213 | strncmp(model, "L3H", 3) == 0 || strncmp(model, "L5D", 3) == 0) | |
1214 | return L3H; | |
1215 | else if (strncmp(model, "L3", 2) == 0 || strncmp(model, "L2B", 3) == 0) | |
1216 | return L3C; | |
1217 | else if (strncmp(model, "L8L", 3) == 0) | |
1218 | return L8L; | |
1219 | else if (strncmp(model, "L4R", 3) == 0) | |
1220 | return L4R; | |
1221 | else if (strncmp(model, "M6N", 3) == 0 || strncmp(model, "W3N", 3) == 0) | |
1222 | return M6N; | |
1223 | else if (strncmp(model, "M6R", 3) == 0 || strncmp(model, "A3G", 3) == 0) | |
1224 | return M6R; | |
1225 | else if (strncmp(model, "M2N", 3) == 0 || | |
1226 | strncmp(model, "M3N", 3) == 0 || | |
1227 | strncmp(model, "M5N", 3) == 0 || | |
1228 | strncmp(model, "M6N", 3) == 0 || | |
1229 | strncmp(model, "S1N", 3) == 0 || | |
1230 | strncmp(model, "S5N", 3) == 0 || strncmp(model, "W1N", 3) == 0) | |
1231 | return xxN; | |
1232 | else if (strncmp(model, "M1", 2) == 0) | |
1233 | return M1A; | |
1234 | else if (strncmp(model, "M2", 2) == 0 || strncmp(model, "L4E", 3) == 0) | |
1235 | return M2E; | |
1236 | else if (strncmp(model, "L2", 2) == 0) | |
1237 | return L2D; | |
1238 | else if (strncmp(model, "L8", 2) == 0) | |
1239 | return S1x; | |
1240 | else if (strncmp(model, "D1", 2) == 0) | |
1241 | return D1x; | |
1242 | else if (strncmp(model, "A1", 2) == 0) | |
1243 | return A1x; | |
1244 | else if (strncmp(model, "A2", 2) == 0) | |
1245 | return A2x; | |
1246 | else if (strncmp(model, "J1", 2) == 0) | |
1247 | return S2x; | |
1248 | else if (strncmp(model, "L5", 2) == 0) | |
1249 | return L5x; | |
1250 | else if (strncmp(model, "A4G", 3) == 0) | |
1251 | return A4G; | |
1252 | else if (strncmp(model, "W1N", 3) == 0) | |
1253 | return W1N; | |
288f3ad4 M |
1254 | else if (strncmp(model, "W3V", 3) == 0) |
1255 | return W3V; | |
ffab0d95 KK |
1256 | else if (strncmp(model, "W5A", 3) == 0) |
1257 | return W5A; | |
1021e211 CC |
1258 | else if (strncmp(model, "R1F", 3) == 0) |
1259 | return R1F; | |
1c0f0575 MC |
1260 | else if (strncmp(model, "A4S", 3) == 0) |
1261 | return A4S; | |
31e0729a LT |
1262 | else if (strncmp(model, "F3Sa", 4) == 0) |
1263 | return F3Sa; | |
ffab0d95 KK |
1264 | else |
1265 | return END_MODEL; | |
1266 | } | |
1267 | ||
1da177e4 LT |
1268 | /* |
1269 | * This function is used to initialize the hotk with right values. In this | |
1270 | * method, we can make all the detection we want, and modify the hotk struct | |
1271 | */ | |
200739c1 | 1272 | static int asus_hotk_get_info(void) |
1da177e4 LT |
1273 | { |
1274 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
1da177e4 LT |
1275 | union acpi_object *model = NULL; |
1276 | int bsts_result; | |
ffab0d95 | 1277 | char *string = NULL; |
1da177e4 LT |
1278 | acpi_status status; |
1279 | ||
1280 | /* | |
c6c38bac MD |
1281 | * Get DSDT headers early enough to allow for differentiating between |
1282 | * models, but late enough to allow acpi_bus_register_driver() to fail | |
1da177e4 LT |
1283 | * before doing anything ACPI-specific. Should we encounter a machine, |
1284 | * which needs special handling (i.e. its hotkey device has a different | |
1285 | * HID), this bit will be moved. A global variable asus_info contains | |
1286 | * the DSDT header. | |
1287 | */ | |
ad71860a | 1288 | status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus_info); |
1da177e4 LT |
1289 | if (ACPI_FAILURE(status)) |
1290 | printk(KERN_WARNING " Couldn't get the DSDT table header\n"); | |
1da177e4 LT |
1291 | |
1292 | /* We have to write 0 on init this far for all ASUS models */ | |
1293 | if (!write_acpi_int(hotk->handle, "INIT", 0, &buffer)) { | |
1294 | printk(KERN_ERR " Hotkey initialization failed\n"); | |
1295 | return -ENODEV; | |
1296 | } | |
1297 | ||
1298 | /* This needs to be called for some laptops to init properly */ | |
1299 | if (!read_acpi_int(hotk->handle, "BSTS", &bsts_result)) | |
1300 | printk(KERN_WARNING " Error calling BSTS\n"); | |
1301 | else if (bsts_result) | |
4be44fcd LB |
1302 | printk(KERN_NOTICE " BSTS called, 0x%02x returned\n", |
1303 | bsts_result); | |
1da177e4 | 1304 | |
b697b537 | 1305 | /* |
ffab0d95 | 1306 | * Try to match the object returned by INIT to the specific model. |
c6c38bac MD |
1307 | * Handle every possible object (or the lack of thereof) the DSDT |
1308 | * writers might throw at us. When in trouble, we pass NULL to | |
ffab0d95 | 1309 | * asus_model_match() and try something completely different. |
b697b537 | 1310 | */ |
ffab0d95 | 1311 | if (buffer.pointer) { |
50dd0969 | 1312 | model = buffer.pointer; |
ffab0d95 KK |
1313 | switch (model->type) { |
1314 | case ACPI_TYPE_STRING: | |
1315 | string = model->string.pointer; | |
1316 | break; | |
1317 | case ACPI_TYPE_BUFFER: | |
1318 | string = model->buffer.pointer; | |
1319 | break; | |
1320 | default: | |
1321 | kfree(model); | |
de47b69c | 1322 | model = NULL; |
ffab0d95 KK |
1323 | break; |
1324 | } | |
1325 | } | |
1326 | hotk->model = asus_model_match(string); | |
1327 | if (hotk->model == END_MODEL) { /* match failed */ | |
1328 | if (asus_info && | |
1da177e4 LT |
1329 | strncmp(asus_info->oem_table_id, "ODEM", 4) == 0) { |
1330 | hotk->model = P30; | |
4be44fcd LB |
1331 | printk(KERN_NOTICE |
1332 | " Samsung P30 detected, supported\n"); | |
1da177e4 LT |
1333 | } else { |
1334 | hotk->model = M2E; | |
ffab0d95 KK |
1335 | printk(KERN_NOTICE " unsupported model %s, trying " |
1336 | "default values\n", string); | |
1337 | printk(KERN_NOTICE | |
1338 | " send /proc/acpi/dsdt to the developers\n"); | |
77453840 ZR |
1339 | kfree(model); |
1340 | return -ENODEV; | |
1da177e4 LT |
1341 | } |
1342 | hotk->methods = &model_conf[hotk->model]; | |
b697b537 | 1343 | return AE_OK; |
1da177e4 | 1344 | } |
1da177e4 | 1345 | hotk->methods = &model_conf[hotk->model]; |
ffab0d95 | 1346 | printk(KERN_NOTICE " %s model detected, supported\n", string); |
1da177e4 LT |
1347 | |
1348 | /* Sort of per-model blacklist */ | |
ffab0d95 | 1349 | if (strncmp(string, "L2B", 3) == 0) |
4be44fcd | 1350 | hotk->methods->lcd_status = NULL; |
c6c38bac | 1351 | /* L2B is similar enough to L3C to use its settings, with this only |
1da177e4 | 1352 | exception */ |
ffab0d95 | 1353 | else if (strncmp(string, "A3G", 3) == 0) |
ed2cb07b KK |
1354 | hotk->methods->lcd_status = "\\BLFG"; |
1355 | /* A3G is like M6R */ | |
ffab0d95 KK |
1356 | else if (strncmp(string, "S5N", 3) == 0 || |
1357 | strncmp(string, "M5N", 3) == 0 || | |
1358 | strncmp(string, "W3N", 3) == 0) | |
4be44fcd | 1359 | hotk->methods->mt_mled = NULL; |
c067a789 | 1360 | /* S5N, M5N and W3N have no MLED */ |
ffab0d95 | 1361 | else if (strncmp(string, "L5D", 3) == 0) |
ebccb848 KK |
1362 | hotk->methods->mt_wled = NULL; |
1363 | /* L5D's WLED is not controlled by ACPI */ | |
96d11420 | 1364 | else if (strncmp(string, "M2N", 3) == 0 || |
288f3ad4 | 1365 | strncmp(string, "W3V", 3) == 0 || |
96d11420 | 1366 | strncmp(string, "S1N", 3) == 0) |
4be44fcd | 1367 | hotk->methods->mt_wled = "WLED"; |
288f3ad4 | 1368 | /* M2N, S1N and W3V have a usable WLED */ |
1da177e4 LT |
1369 | else if (asus_info) { |
1370 | if (strncmp(asus_info->oem_table_id, "L1", 2) == 0) | |
1371 | hotk->methods->mled_status = NULL; | |
4be44fcd | 1372 | /* S1300A reports L84F, but L1400B too, account for that */ |
1da177e4 LT |
1373 | } |
1374 | ||
02438d87 | 1375 | kfree(model); |
1da177e4 LT |
1376 | |
1377 | return AE_OK; | |
1378 | } | |
1379 | ||
200739c1 | 1380 | static int asus_hotk_check(void) |
1da177e4 LT |
1381 | { |
1382 | int result = 0; | |
1383 | ||
1384 | result = acpi_bus_get_status(hotk->device); | |
1385 | if (result) | |
1386 | return result; | |
1387 | ||
1388 | if (hotk->device->status.present) { | |
1389 | result = asus_hotk_get_info(); | |
1390 | } else { | |
1391 | printk(KERN_ERR " Hotkey device not present, aborting\n"); | |
1392 | return -EINVAL; | |
1393 | } | |
1394 | ||
1395 | return result; | |
1396 | } | |
1397 | ||
578b333b BH |
1398 | static int asus_hotk_found; |
1399 | ||
200739c1 | 1400 | static int asus_hotk_add(struct acpi_device *device) |
1da177e4 LT |
1401 | { |
1402 | acpi_status status = AE_OK; | |
1403 | int result; | |
1404 | ||
1da177e4 LT |
1405 | printk(KERN_NOTICE "Asus Laptop ACPI Extras version %s\n", |
1406 | ASUS_ACPI_VERSION); | |
1407 | ||
36bcbec7 | 1408 | hotk = kzalloc(sizeof(struct asus_hotk), GFP_KERNEL); |
1da177e4 LT |
1409 | if (!hotk) |
1410 | return -ENOMEM; | |
1da177e4 LT |
1411 | |
1412 | hotk->handle = device->handle; | |
1413 | strcpy(acpi_device_name(device), ACPI_HOTK_DEVICE_NAME); | |
1414 | strcpy(acpi_device_class(device), ACPI_HOTK_CLASS); | |
db89b4f0 | 1415 | device->driver_data = hotk; |
1da177e4 LT |
1416 | hotk->device = device; |
1417 | ||
1da177e4 LT |
1418 | result = asus_hotk_check(); |
1419 | if (result) | |
1420 | goto end; | |
1421 | ||
1422 | result = asus_hotk_add_fs(device); | |
1423 | if (result) | |
1424 | goto end; | |
1425 | ||
1da177e4 | 1426 | /* For laptops without GPLV: init the hotk->brightness value */ |
4be44fcd LB |
1427 | if ((!hotk->methods->brightness_get) |
1428 | && (!hotk->methods->brightness_status) | |
a170a531 | 1429 | && (hotk->methods->brightness_up && hotk->methods->brightness_down)) { |
4be44fcd LB |
1430 | status = |
1431 | acpi_evaluate_object(NULL, hotk->methods->brightness_down, | |
1432 | NULL, NULL); | |
1da177e4 LT |
1433 | if (ACPI_FAILURE(status)) |
1434 | printk(KERN_WARNING " Error changing brightness\n"); | |
1435 | else { | |
4be44fcd LB |
1436 | status = |
1437 | acpi_evaluate_object(NULL, | |
1438 | hotk->methods->brightness_up, | |
1439 | NULL, NULL); | |
1da177e4 | 1440 | if (ACPI_FAILURE(status)) |
4be44fcd | 1441 | printk(KERN_WARNING " Strange, error changing" |
1da177e4 LT |
1442 | " brightness\n"); |
1443 | } | |
1444 | } | |
1445 | ||
578b333b BH |
1446 | asus_hotk_found = 1; |
1447 | ||
42cb8912 KK |
1448 | /* LED display is off by default */ |
1449 | hotk->ledd_status = 0xFFF; | |
1450 | ||
c6c38bac MD |
1451 | end: |
1452 | if (result) | |
1da177e4 | 1453 | kfree(hotk); |
1da177e4 LT |
1454 | |
1455 | return result; | |
1456 | } | |
1457 | ||
1da177e4 LT |
1458 | static int asus_hotk_remove(struct acpi_device *device, int type) |
1459 | { | |
1da177e4 LT |
1460 | asus_hotk_remove_fs(device); |
1461 | ||
1462 | kfree(hotk); | |
1463 | ||
1464 | return 0; | |
1465 | } | |
1466 | ||
599a52d1 | 1467 | static struct backlight_ops asus_backlight_data = { |
c6c38bac MD |
1468 | .get_brightness = read_brightness, |
1469 | .update_status = set_brightness_status, | |
2039a6eb HM |
1470 | }; |
1471 | ||
b2b77b23 | 1472 | static void asus_acpi_exit(void) |
2039a6eb HM |
1473 | { |
1474 | if (asus_backlight_device) | |
1475 | backlight_device_unregister(asus_backlight_device); | |
1476 | ||
1477 | acpi_bus_unregister_driver(&asus_hotk_driver); | |
1478 | remove_proc_entry(PROC_ASUS, acpi_root_dir); | |
1479 | ||
2039a6eb HM |
1480 | return; |
1481 | } | |
1482 | ||
1da177e4 LT |
1483 | static int __init asus_acpi_init(void) |
1484 | { | |
1485 | int result; | |
1486 | ||
5a4a9f6f AJ |
1487 | result = acpi_bus_register_driver(&asus_hotk_driver); |
1488 | if (result < 0) | |
1489 | return result; | |
1da177e4 LT |
1490 | |
1491 | asus_proc_dir = proc_mkdir(PROC_ASUS, acpi_root_dir); | |
1492 | if (!asus_proc_dir) { | |
1493 | printk(KERN_ERR "Asus ACPI: Unable to create /proc entry\n"); | |
5a4a9f6f | 1494 | acpi_bus_unregister_driver(&asus_hotk_driver); |
1da177e4 LT |
1495 | return -ENODEV; |
1496 | } | |
1da177e4 | 1497 | |
578b333b BH |
1498 | /* |
1499 | * This is a bit of a kludge. We only want this module loaded | |
1500 | * for ASUS systems, but there's currently no way to probe the | |
1501 | * ACPI namespace for ASUS HIDs. So we just return failure if | |
1502 | * we didn't find one, which will cause the module to be | |
1503 | * unloaded. | |
1504 | */ | |
1505 | if (!asus_hotk_found) { | |
1da177e4 LT |
1506 | acpi_bus_unregister_driver(&asus_hotk_driver); |
1507 | remove_proc_entry(PROC_ASUS, acpi_root_dir); | |
5ebffd7c | 1508 | return -ENODEV; |
1da177e4 LT |
1509 | } |
1510 | ||
c6c38bac | 1511 | asus_backlight_device = backlight_device_register("asus", NULL, NULL, |
2039a6eb | 1512 | &asus_backlight_data); |
c6c38bac | 1513 | if (IS_ERR(asus_backlight_device)) { |
2039a6eb HM |
1514 | printk(KERN_ERR "Could not register asus backlight device\n"); |
1515 | asus_backlight_device = NULL; | |
1516 | asus_acpi_exit(); | |
5ebffd7c | 1517 | return -ENODEV; |
2039a6eb | 1518 | } |
c6c38bac | 1519 | asus_backlight_device->props.max_brightness = 15; |
1da177e4 | 1520 | |
2039a6eb | 1521 | return 0; |
1da177e4 LT |
1522 | } |
1523 | ||
1524 | module_init(asus_acpi_init); | |
1525 | module_exit(asus_acpi_exit); |