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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> | |
5a0e3ad6 | 35 | #include <linux/slab.h> |
1da177e4 LT |
36 | #include <linux/init.h> |
37 | #include <linux/types.h> | |
38 | #include <linux/proc_fs.h> | |
ff93be5d | 39 | #include <linux/seq_file.h> |
2039a6eb | 40 | #include <linux/backlight.h> |
1da177e4 LT |
41 | #include <acpi/acpi_drivers.h> |
42 | #include <acpi/acpi_bus.h> | |
43 | #include <asm/uaccess.h> | |
44 | ||
a170a531 | 45 | #define ASUS_ACPI_VERSION "0.30" |
1da177e4 | 46 | |
c6c38bac | 47 | #define PROC_ASUS "asus" /* The directory */ |
1da177e4 LT |
48 | #define PROC_MLED "mled" |
49 | #define PROC_WLED "wled" | |
50 | #define PROC_TLED "tled" | |
e067aaa7 | 51 | #define PROC_BT "bluetooth" |
42cb8912 | 52 | #define PROC_LEDD "ledd" |
1da177e4 LT |
53 | #define PROC_INFO "info" |
54 | #define PROC_LCD "lcd" | |
55 | #define PROC_BRN "brn" | |
56 | #define PROC_DISP "disp" | |
57 | ||
58 | #define ACPI_HOTK_NAME "Asus Laptop ACPI Extras Driver" | |
59 | #define ACPI_HOTK_CLASS "hotkey" | |
60 | #define ACPI_HOTK_DEVICE_NAME "Hotkey" | |
1da177e4 LT |
61 | |
62 | /* | |
63 | * Some events we use, same for all Asus | |
64 | */ | |
4be44fcd | 65 | #define BR_UP 0x10 |
1da177e4 LT |
66 | #define BR_DOWN 0x20 |
67 | ||
68 | /* | |
69 | * Flags for hotk status | |
70 | */ | |
c6c38bac MD |
71 | #define MLED_ON 0x01 /* Mail LED */ |
72 | #define WLED_ON 0x02 /* Wireless LED */ | |
73 | #define TLED_ON 0x04 /* Touchpad LED */ | |
74 | #define BT_ON 0x08 /* Internal Bluetooth */ | |
1da177e4 LT |
75 | |
76 | MODULE_AUTHOR("Julien Lerouge, Karol Kozimor"); | |
77 | MODULE_DESCRIPTION(ACPI_HOTK_NAME); | |
78 | MODULE_LICENSE("GPL"); | |
79 | ||
1da177e4 LT |
80 | static uid_t asus_uid; |
81 | static gid_t asus_gid; | |
82 | module_param(asus_uid, uint, 0); | |
61a2d07d | 83 | MODULE_PARM_DESC(asus_uid, "UID for entries in /proc/acpi/asus"); |
1da177e4 | 84 | module_param(asus_gid, uint, 0); |
61a2d07d | 85 | MODULE_PARM_DESC(asus_gid, "GID for entries in /proc/acpi/asus"); |
1da177e4 | 86 | |
c6c38bac | 87 | /* For each model, all features implemented, |
1da177e4 LT |
88 | * those marked with R are relative to HOTK, A for absolute */ |
89 | struct model_data { | |
c6c38bac MD |
90 | char *name; /* name of the laptop________________A */ |
91 | char *mt_mled; /* method to handle mled_____________R */ | |
92 | char *mled_status; /* node to handle mled reading_______A */ | |
93 | char *mt_wled; /* method to handle wled_____________R */ | |
94 | char *wled_status; /* node to handle wled reading_______A */ | |
95 | char *mt_tled; /* method to handle tled_____________R */ | |
96 | char *tled_status; /* node to handle tled reading_______A */ | |
97 | char *mt_ledd; /* method to handle LED display______R */ | |
98 | char *mt_bt_switch; /* method to switch Bluetooth on/off_R */ | |
99 | char *bt_status; /* no model currently supports this__? */ | |
100 | char *mt_lcd_switch; /* method to turn LCD on/off_________A */ | |
101 | char *lcd_status; /* node to read LCD panel state______A */ | |
102 | char *brightness_up; /* method to set brightness up_______A */ | |
103 | char *brightness_down; /* method to set brightness down ____A */ | |
104 | char *brightness_set; /* method to set absolute brightness_R */ | |
105 | char *brightness_get; /* method to get absolute brightness_R */ | |
106 | char *brightness_status;/* node to get brightness____________A */ | |
107 | char *display_set; /* method to set video output________R */ | |
108 | char *display_get; /* method to get video output________R */ | |
1da177e4 LT |
109 | }; |
110 | ||
111 | /* | |
112 | * This is the main structure, we can use it to store anything interesting | |
113 | * about the hotk device | |
114 | */ | |
115 | struct asus_hotk { | |
c6c38bac MD |
116 | struct acpi_device *device; /* the device we are in */ |
117 | acpi_handle handle; /* the handle of the hotk device */ | |
118 | char status; /* status of the hotk, for LEDs */ | |
119 | u32 ledd_status; /* status of the LED display */ | |
120 | struct model_data *methods; /* methods available on the laptop */ | |
121 | u8 brightness; /* brightness level */ | |
1da177e4 | 122 | enum { |
c6c38bac MD |
123 | A1x = 0, /* A1340D, A1300F */ |
124 | A2x, /* A2500H */ | |
125 | A4G, /* A4700G */ | |
126 | D1x, /* D1 */ | |
127 | L2D, /* L2000D */ | |
128 | L3C, /* L3800C */ | |
129 | L3D, /* L3400D */ | |
130 | L3H, /* L3H, L2000E, L5D */ | |
131 | L4R, /* L4500R */ | |
132 | L5x, /* L5800C */ | |
133 | L8L, /* L8400L */ | |
134 | M1A, /* M1300A */ | |
135 | M2E, /* M2400E, L4400L */ | |
136 | M6N, /* M6800N, W3400N */ | |
137 | M6R, /* M6700R, A3000G */ | |
138 | P30, /* Samsung P30 */ | |
139 | S1x, /* S1300A, but also L1400B and M2400A (L84F) */ | |
140 | S2x, /* S200 (J1 reported), Victor MP-XP7210 */ | |
141 | W1N, /* W1000N */ | |
142 | W5A, /* W5A */ | |
143 | W3V, /* W3030V */ | |
144 | xxN, /* M2400N, M3700N, M5200N, M6800N, | |
145 | S1300N, S5200N*/ | |
146 | A4S, /* Z81sp */ | |
147 | F3Sa, /* (Centrino) */ | |
1021e211 | 148 | R1F, |
1da177e4 | 149 | END_MODEL |
c6c38bac MD |
150 | } model; /* Models currently supported */ |
151 | u16 event_count[128]; /* Count for each event TODO make this better */ | |
1da177e4 LT |
152 | }; |
153 | ||
154 | /* Here we go */ | |
155 | #define A1x_PREFIX "\\_SB.PCI0.ISA.EC0." | |
156 | #define L3C_PREFIX "\\_SB.PCI0.PX40.ECD0." | |
157 | #define M1A_PREFIX "\\_SB.PCI0.PX40.EC0." | |
158 | #define P30_PREFIX "\\_SB.PCI0.LPCB.EC0." | |
159 | #define S1x_PREFIX "\\_SB.PCI0.PX40." | |
160 | #define S2x_PREFIX A1x_PREFIX | |
161 | #define xxN_PREFIX "\\_SB.PCI0.SBRG.EC0." | |
162 | ||
163 | static struct model_data model_conf[END_MODEL] = { | |
4be44fcd | 164 | /* |
1da177e4 LT |
165 | * TODO I have seen a SWBX and AIBX method on some models, like L1400B, |
166 | * it seems to be a kind of switch, but what for ? | |
1da177e4 LT |
167 | */ |
168 | ||
169 | { | |
4be44fcd LB |
170 | .name = "A1x", |
171 | .mt_mled = "MLED", | |
172 | .mled_status = "\\MAIL", | |
173 | .mt_lcd_switch = A1x_PREFIX "_Q10", | |
174 | .lcd_status = "\\BKLI", | |
175 | .brightness_up = A1x_PREFIX "_Q0E", | |
176 | .brightness_down = A1x_PREFIX "_Q0F"}, | |
1da177e4 LT |
177 | |
178 | { | |
4be44fcd LB |
179 | .name = "A2x", |
180 | .mt_mled = "MLED", | |
181 | .mt_wled = "WLED", | |
182 | .wled_status = "\\SG66", | |
183 | .mt_lcd_switch = "\\Q10", | |
184 | .lcd_status = "\\BAOF", | |
185 | .brightness_set = "SPLV", | |
186 | .brightness_get = "GPLV", | |
187 | .display_set = "SDSP", | |
188 | .display_get = "\\INFB"}, | |
1da177e4 | 189 | |
f78c589d KK |
190 | { |
191 | .name = "A4G", | |
192 | .mt_mled = "MLED", | |
193 | /* WLED present, but not controlled by ACPI */ | |
194 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
195 | .brightness_set = "SPLV", | |
196 | .brightness_get = "GPLV", | |
197 | .display_set = "SDSP", | |
198 | .display_get = "\\ADVG"}, | |
199 | ||
1da177e4 | 200 | { |
4be44fcd LB |
201 | .name = "D1x", |
202 | .mt_mled = "MLED", | |
203 | .mt_lcd_switch = "\\Q0D", | |
204 | .lcd_status = "\\GP11", | |
205 | .brightness_up = "\\Q0C", | |
206 | .brightness_down = "\\Q0B", | |
207 | .brightness_status = "\\BLVL", | |
208 | .display_set = "SDSP", | |
209 | .display_get = "\\INFB"}, | |
1da177e4 LT |
210 | |
211 | { | |
4be44fcd LB |
212 | .name = "L2D", |
213 | .mt_mled = "MLED", | |
214 | .mled_status = "\\SGP6", | |
215 | .mt_wled = "WLED", | |
216 | .wled_status = "\\RCP3", | |
217 | .mt_lcd_switch = "\\Q10", | |
218 | .lcd_status = "\\SGP0", | |
219 | .brightness_up = "\\Q0E", | |
220 | .brightness_down = "\\Q0F", | |
221 | .display_set = "SDSP", | |
222 | .display_get = "\\INFB"}, | |
1da177e4 LT |
223 | |
224 | { | |
4be44fcd LB |
225 | .name = "L3C", |
226 | .mt_mled = "MLED", | |
227 | .mt_wled = "WLED", | |
228 | .mt_lcd_switch = L3C_PREFIX "_Q10", | |
229 | .lcd_status = "\\GL32", | |
230 | .brightness_set = "SPLV", | |
231 | .brightness_get = "GPLV", | |
232 | .display_set = "SDSP", | |
233 | .display_get = "\\_SB.PCI0.PCI1.VGAC.NMAP"}, | |
1da177e4 LT |
234 | |
235 | { | |
4be44fcd LB |
236 | .name = "L3D", |
237 | .mt_mled = "MLED", | |
238 | .mled_status = "\\MALD", | |
239 | .mt_wled = "WLED", | |
240 | .mt_lcd_switch = "\\Q10", | |
241 | .lcd_status = "\\BKLG", | |
242 | .brightness_set = "SPLV", | |
243 | .brightness_get = "GPLV", | |
244 | .display_set = "SDSP", | |
245 | .display_get = "\\INFB"}, | |
1da177e4 LT |
246 | |
247 | { | |
4be44fcd LB |
248 | .name = "L3H", |
249 | .mt_mled = "MLED", | |
250 | .mt_wled = "WLED", | |
251 | .mt_lcd_switch = "EHK", | |
252 | .lcd_status = "\\_SB.PCI0.PM.PBC", | |
253 | .brightness_set = "SPLV", | |
254 | .brightness_get = "GPLV", | |
255 | .display_set = "SDSP", | |
256 | .display_get = "\\INFB"}, | |
1da177e4 LT |
257 | |
258 | { | |
4be44fcd LB |
259 | .name = "L4R", |
260 | .mt_mled = "MLED", | |
261 | .mt_wled = "WLED", | |
262 | .wled_status = "\\_SB.PCI0.SBRG.SG13", | |
263 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
264 | .lcd_status = "\\_SB.PCI0.SBSM.SEO4", | |
265 | .brightness_set = "SPLV", | |
266 | .brightness_get = "GPLV", | |
267 | .display_set = "SDSP", | |
268 | .display_get = "\\_SB.PCI0.P0P1.VGA.GETD"}, | |
1da177e4 LT |
269 | |
270 | { | |
4be44fcd LB |
271 | .name = "L5x", |
272 | .mt_mled = "MLED", | |
1da177e4 | 273 | /* WLED present, but not controlled by ACPI */ |
4be44fcd LB |
274 | .mt_tled = "TLED", |
275 | .mt_lcd_switch = "\\Q0D", | |
276 | .lcd_status = "\\BAOF", | |
277 | .brightness_set = "SPLV", | |
278 | .brightness_get = "GPLV", | |
279 | .display_set = "SDSP", | |
280 | .display_get = "\\INFB"}, | |
1da177e4 LT |
281 | |
282 | { | |
4be44fcd | 283 | .name = "L8L" |
1da177e4 | 284 | /* No features, but at least support the hotkeys */ |
4be44fcd | 285 | }, |
1da177e4 LT |
286 | |
287 | { | |
4be44fcd LB |
288 | .name = "M1A", |
289 | .mt_mled = "MLED", | |
290 | .mt_lcd_switch = M1A_PREFIX "Q10", | |
291 | .lcd_status = "\\PNOF", | |
292 | .brightness_up = M1A_PREFIX "Q0E", | |
293 | .brightness_down = M1A_PREFIX "Q0F", | |
294 | .brightness_status = "\\BRIT", | |
295 | .display_set = "SDSP", | |
296 | .display_get = "\\INFB"}, | |
1da177e4 LT |
297 | |
298 | { | |
4be44fcd LB |
299 | .name = "M2E", |
300 | .mt_mled = "MLED", | |
301 | .mt_wled = "WLED", | |
302 | .mt_lcd_switch = "\\Q10", | |
303 | .lcd_status = "\\GP06", | |
304 | .brightness_set = "SPLV", | |
305 | .brightness_get = "GPLV", | |
306 | .display_set = "SDSP", | |
307 | .display_get = "\\INFB"}, | |
1da177e4 LT |
308 | |
309 | { | |
4be44fcd LB |
310 | .name = "M6N", |
311 | .mt_mled = "MLED", | |
312 | .mt_wled = "WLED", | |
313 | .wled_status = "\\_SB.PCI0.SBRG.SG13", | |
314 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
315 | .lcd_status = "\\_SB.BKLT", | |
316 | .brightness_set = "SPLV", | |
317 | .brightness_get = "GPLV", | |
318 | .display_set = "SDSP", | |
9becf5b9 KK |
319 | .display_get = "\\SSTE"}, |
320 | ||
1da177e4 | 321 | { |
4be44fcd LB |
322 | .name = "M6R", |
323 | .mt_mled = "MLED", | |
324 | .mt_wled = "WLED", | |
325 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
326 | .lcd_status = "\\_SB.PCI0.SBSM.SEO4", | |
327 | .brightness_set = "SPLV", | |
328 | .brightness_get = "GPLV", | |
329 | .display_set = "SDSP", | |
9becf5b9 | 330 | .display_get = "\\_SB.PCI0.P0P1.VGA.GETD"}, |
1da177e4 LT |
331 | |
332 | { | |
4be44fcd LB |
333 | .name = "P30", |
334 | .mt_wled = "WLED", | |
335 | .mt_lcd_switch = P30_PREFIX "_Q0E", | |
336 | .lcd_status = "\\BKLT", | |
337 | .brightness_up = P30_PREFIX "_Q68", | |
338 | .brightness_down = P30_PREFIX "_Q69", | |
339 | .brightness_get = "GPLV", | |
340 | .display_set = "SDSP", | |
341 | .display_get = "\\DNXT"}, | |
1da177e4 LT |
342 | |
343 | { | |
4be44fcd LB |
344 | .name = "S1x", |
345 | .mt_mled = "MLED", | |
346 | .mled_status = "\\EMLE", | |
347 | .mt_wled = "WLED", | |
348 | .mt_lcd_switch = S1x_PREFIX "Q10", | |
349 | .lcd_status = "\\PNOF", | |
350 | .brightness_set = "SPLV", | |
351 | .brightness_get = "GPLV"}, | |
1da177e4 LT |
352 | |
353 | { | |
4be44fcd LB |
354 | .name = "S2x", |
355 | .mt_mled = "MLED", | |
356 | .mled_status = "\\MAIL", | |
357 | .mt_lcd_switch = S2x_PREFIX "_Q10", | |
358 | .lcd_status = "\\BKLI", | |
359 | .brightness_up = S2x_PREFIX "_Q0B", | |
360 | .brightness_down = S2x_PREFIX "_Q0A"}, | |
1da177e4 | 361 | |
42cb8912 KK |
362 | { |
363 | .name = "W1N", | |
364 | .mt_mled = "MLED", | |
365 | .mt_wled = "WLED", | |
366 | .mt_ledd = "SLCM", | |
367 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
368 | .lcd_status = "\\BKLT", | |
369 | .brightness_set = "SPLV", | |
370 | .brightness_get = "GPLV", | |
371 | .display_set = "SDSP", | |
372 | .display_get = "\\ADVG"}, | |
373 | ||
e067aaa7 KK |
374 | { |
375 | .name = "W5A", | |
376 | .mt_bt_switch = "BLED", | |
377 | .mt_wled = "WLED", | |
378 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
379 | .brightness_set = "SPLV", | |
380 | .brightness_get = "GPLV", | |
381 | .display_set = "SDSP", | |
382 | .display_get = "\\ADVG"}, | |
383 | ||
1da177e4 | 384 | { |
288f3ad4 M |
385 | .name = "W3V", |
386 | .mt_mled = "MLED", | |
387 | .mt_wled = "WLED", | |
388 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
389 | .lcd_status = "\\BKLT", | |
390 | .brightness_set = "SPLV", | |
391 | .brightness_get = "GPLV", | |
392 | .display_set = "SDSP", | |
393 | .display_get = "\\INFB"}, | |
394 | ||
395 | { | |
4be44fcd LB |
396 | .name = "xxN", |
397 | .mt_mled = "MLED", | |
1da177e4 | 398 | /* WLED present, but not controlled by ACPI */ |
4be44fcd LB |
399 | .mt_lcd_switch = xxN_PREFIX "_Q10", |
400 | .lcd_status = "\\BKLT", | |
401 | .brightness_set = "SPLV", | |
402 | .brightness_get = "GPLV", | |
403 | .display_set = "SDSP", | |
1c0f0575 MC |
404 | .display_get = "\\ADVG"}, |
405 | ||
406 | { | |
407 | .name = "A4S", | |
408 | .brightness_set = "SPLV", | |
409 | .brightness_get = "GPLV", | |
410 | .mt_bt_switch = "BLED", | |
411 | .mt_wled = "WLED" | |
31e0729a LT |
412 | }, |
413 | ||
414 | { | |
415 | .name = "F3Sa", | |
416 | .mt_bt_switch = "BLED", | |
417 | .mt_wled = "WLED", | |
418 | .mt_mled = "MLED", | |
419 | .brightness_get = "GPLV", | |
420 | .brightness_set = "SPLV", | |
421 | .mt_lcd_switch = "\\_SB.PCI0.SBRG.EC0._Q10", | |
422 | .lcd_status = "\\_SB.PCI0.SBRG.EC0.RPIN", | |
423 | .display_get = "\\ADVG", | |
424 | .display_set = "SDSP", | |
425 | }, | |
1021e211 CC |
426 | { |
427 | .name = "R1F", | |
428 | .mt_bt_switch = "BLED", | |
429 | .mt_mled = "MLED", | |
430 | .mt_wled = "WLED", | |
431 | .mt_lcd_switch = "\\Q10", | |
432 | .lcd_status = "\\GP06", | |
433 | .brightness_set = "SPLV", | |
434 | .brightness_get = "GPLV", | |
435 | .display_set = "SDSP", | |
436 | .display_get = "\\INFB" | |
437 | } | |
1da177e4 LT |
438 | }; |
439 | ||
440 | /* procdir we use */ | |
441 | static struct proc_dir_entry *asus_proc_dir; | |
442 | ||
2039a6eb HM |
443 | static struct backlight_device *asus_backlight_device; |
444 | ||
1da177e4 LT |
445 | /* |
446 | * This header is made available to allow proper configuration given model, | |
447 | * revision number , ... this info cannot go in struct asus_hotk because it is | |
448 | * available before the hotk | |
449 | */ | |
450 | static struct acpi_table_header *asus_info; | |
451 | ||
452 | /* The actual device the driver binds to */ | |
453 | static struct asus_hotk *hotk; | |
454 | ||
455 | /* | |
1ba90e3a | 456 | * The hotkey driver and autoloading declaration |
1da177e4 LT |
457 | */ |
458 | static int asus_hotk_add(struct acpi_device *device); | |
459 | static int asus_hotk_remove(struct acpi_device *device, int type); | |
352fa202 BH |
460 | static void asus_hotk_notify(struct acpi_device *device, u32 event); |
461 | ||
1ba90e3a TR |
462 | static const struct acpi_device_id asus_device_ids[] = { |
463 | {"ATK0100", 0}, | |
464 | {"", 0}, | |
465 | }; | |
466 | MODULE_DEVICE_TABLE(acpi, asus_device_ids); | |
467 | ||
1da177e4 | 468 | static struct acpi_driver asus_hotk_driver = { |
c2b6705b | 469 | .name = "asus_acpi", |
4be44fcd | 470 | .class = ACPI_HOTK_CLASS, |
db7c554a | 471 | .owner = THIS_MODULE, |
1ba90e3a | 472 | .ids = asus_device_ids, |
352fa202 | 473 | .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, |
4be44fcd LB |
474 | .ops = { |
475 | .add = asus_hotk_add, | |
476 | .remove = asus_hotk_remove, | |
352fa202 | 477 | .notify = asus_hotk_notify, |
4be44fcd | 478 | }, |
1da177e4 LT |
479 | }; |
480 | ||
c6c38bac | 481 | /* |
1da177e4 LT |
482 | * This function evaluates an ACPI method, given an int as parameter, the |
483 | * method is searched within the scope of the handle, can be NULL. The output | |
484 | * of the method is written is output, which can also be NULL | |
485 | * | |
c6c38bac | 486 | * returns 1 if write is successful, 0 else. |
1da177e4 LT |
487 | */ |
488 | static int write_acpi_int(acpi_handle handle, const char *method, int val, | |
489 | struct acpi_buffer *output) | |
490 | { | |
c6c38bac MD |
491 | struct acpi_object_list params; /* list of input parameters (int) */ |
492 | union acpi_object in_obj; /* the only param we use */ | |
1da177e4 LT |
493 | acpi_status status; |
494 | ||
495 | params.count = 1; | |
496 | params.pointer = &in_obj; | |
497 | in_obj.type = ACPI_TYPE_INTEGER; | |
498 | in_obj.integer.value = val; | |
499 | ||
4be44fcd | 500 | status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); |
1da177e4 LT |
501 | return (status == AE_OK); |
502 | } | |
503 | ||
1da177e4 LT |
504 | static int read_acpi_int(acpi_handle handle, const char *method, int *val) |
505 | { | |
506 | struct acpi_buffer output; | |
507 | union acpi_object out_obj; | |
508 | acpi_status status; | |
509 | ||
510 | output.length = sizeof(out_obj); | |
511 | output.pointer = &out_obj; | |
512 | ||
4be44fcd | 513 | status = acpi_evaluate_object(handle, (char *)method, NULL, &output); |
1da177e4 LT |
514 | *val = out_obj.integer.value; |
515 | return (status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER); | |
516 | } | |
517 | ||
ff93be5d | 518 | static int asus_info_proc_show(struct seq_file *m, void *v) |
1da177e4 | 519 | { |
1da177e4 | 520 | int temp; |
1da177e4 | 521 | |
ff93be5d AD |
522 | seq_printf(m, ACPI_HOTK_NAME " " ASUS_ACPI_VERSION "\n"); |
523 | seq_printf(m, "Model reference : %s\n", hotk->methods->name); | |
c6c38bac MD |
524 | /* |
525 | * The SFUN method probably allows the original driver to get the list | |
526 | * of features supported by a given model. For now, 0x0100 or 0x0800 | |
1da177e4 LT |
527 | * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. |
528 | * The significance of others is yet to be found. | |
529 | */ | |
530 | if (read_acpi_int(hotk->handle, "SFUN", &temp)) | |
ff93be5d | 531 | seq_printf(m, "SFUN value : 0x%04x\n", temp); |
1da177e4 LT |
532 | /* |
533 | * Another value for userspace: the ASYM method returns 0x02 for | |
534 | * battery low and 0x04 for battery critical, its readings tend to be | |
c6c38bac | 535 | * more accurate than those provided by _BST. |
1da177e4 LT |
536 | * Note: since not all the laptops provide this method, errors are |
537 | * silently ignored. | |
538 | */ | |
539 | if (read_acpi_int(hotk->handle, "ASYM", &temp)) | |
ff93be5d | 540 | seq_printf(m, "ASYM value : 0x%04x\n", temp); |
1da177e4 | 541 | if (asus_info) { |
ff93be5d AD |
542 | seq_printf(m, "DSDT length : %d\n", asus_info->length); |
543 | seq_printf(m, "DSDT checksum : %d\n", asus_info->checksum); | |
544 | seq_printf(m, "DSDT revision : %d\n", asus_info->revision); | |
545 | seq_printf(m, "OEM id : %.*s\n", ACPI_OEM_ID_SIZE, asus_info->oem_id); | |
546 | seq_printf(m, "OEM table id : %.*s\n", ACPI_OEM_TABLE_ID_SIZE, asus_info->oem_table_id); | |
547 | seq_printf(m, "OEM revision : 0x%x\n", asus_info->oem_revision); | |
548 | seq_printf(m, "ASL comp vendor id : %.*s\n", ACPI_NAME_SIZE, asus_info->asl_compiler_id); | |
549 | seq_printf(m, "ASL comp revision : 0x%x\n", asus_info->asl_compiler_revision); | |
1da177e4 LT |
550 | } |
551 | ||
ff93be5d AD |
552 | return 0; |
553 | } | |
554 | ||
555 | static int asus_info_proc_open(struct inode *inode, struct file *file) | |
556 | { | |
557 | return single_open(file, asus_info_proc_show, NULL); | |
1da177e4 LT |
558 | } |
559 | ||
ff93be5d AD |
560 | static const struct file_operations asus_info_proc_fops = { |
561 | .owner = THIS_MODULE, | |
562 | .open = asus_info_proc_open, | |
563 | .read = seq_read, | |
564 | .llseek = seq_lseek, | |
565 | .release = single_release, | |
566 | }; | |
567 | ||
1da177e4 LT |
568 | /* |
569 | * /proc handlers | |
570 | * We write our info in page, we begin at offset off and cannot write more | |
571 | * than count bytes. We set eof to 1 if we handle those 2 values. We return the | |
572 | * number of bytes written in page | |
573 | */ | |
574 | ||
575 | /* Generic LED functions */ | |
4be44fcd | 576 | static int read_led(const char *ledname, int ledmask) |
1da177e4 LT |
577 | { |
578 | if (ledname) { | |
579 | int led_status; | |
580 | ||
581 | if (read_acpi_int(NULL, ledname, &led_status)) | |
582 | return led_status; | |
583 | else | |
584 | printk(KERN_WARNING "Asus ACPI: Error reading LED " | |
585 | "status\n"); | |
586 | } | |
587 | return (hotk->status & ledmask) ? 1 : 0; | |
588 | } | |
589 | ||
c6c38bac | 590 | static int parse_arg(const char __user *buf, unsigned long count, int *val) |
1da177e4 LT |
591 | { |
592 | char s[32]; | |
593 | if (!count) | |
594 | return 0; | |
595 | if (count > 31) | |
596 | return -EINVAL; | |
597 | if (copy_from_user(s, buf, count)) | |
598 | return -EFAULT; | |
599 | s[count] = 0; | |
600 | if (sscanf(s, "%i", val) != 1) | |
601 | return -EINVAL; | |
602 | return count; | |
603 | } | |
604 | ||
605 | /* FIXME: kill extraneous args so it can be called independently */ | |
606 | static int | |
c6c38bac | 607 | write_led(const char __user *buffer, unsigned long count, |
4be44fcd | 608 | char *ledname, int ledmask, int invert) |
1da177e4 | 609 | { |
6311f0da | 610 | int rv, value; |
1da177e4 LT |
611 | int led_out = 0; |
612 | ||
6311f0da DJ |
613 | rv = parse_arg(buffer, count, &value); |
614 | if (rv > 0) | |
1da177e4 LT |
615 | led_out = value ? 1 : 0; |
616 | ||
617 | hotk->status = | |
618 | (led_out) ? (hotk->status | ledmask) : (hotk->status & ~ledmask); | |
619 | ||
4be44fcd | 620 | if (invert) /* invert target value */ |
abc5a87f | 621 | led_out = !led_out; |
1da177e4 LT |
622 | |
623 | if (!write_acpi_int(hotk->handle, ledname, led_out, NULL)) | |
4be44fcd LB |
624 | printk(KERN_WARNING "Asus ACPI: LED (%s) write failed\n", |
625 | ledname); | |
1da177e4 | 626 | |
6311f0da | 627 | return rv; |
1da177e4 LT |
628 | } |
629 | ||
1da177e4 LT |
630 | /* |
631 | * Proc handlers for MLED | |
632 | */ | |
ff93be5d | 633 | static int mled_proc_show(struct seq_file *m, void *v) |
1da177e4 | 634 | { |
ff93be5d AD |
635 | seq_printf(m, "%d\n", read_led(hotk->methods->mled_status, MLED_ON)); |
636 | return 0; | |
1da177e4 LT |
637 | } |
638 | ||
ff93be5d AD |
639 | static int mled_proc_open(struct inode *inode, struct file *file) |
640 | { | |
641 | return single_open(file, mled_proc_show, NULL); | |
642 | } | |
643 | ||
644 | static ssize_t mled_proc_write(struct file *file, const char __user *buffer, | |
645 | size_t count, loff_t *pos) | |
1da177e4 LT |
646 | { |
647 | return write_led(buffer, count, hotk->methods->mt_mled, MLED_ON, 1); | |
648 | } | |
649 | ||
ff93be5d AD |
650 | static const struct file_operations mled_proc_fops = { |
651 | .owner = THIS_MODULE, | |
652 | .open = mled_proc_open, | |
653 | .read = seq_read, | |
654 | .llseek = seq_lseek, | |
655 | .release = single_release, | |
656 | .write = mled_proc_write, | |
657 | }; | |
658 | ||
42cb8912 KK |
659 | /* |
660 | * Proc handlers for LED display | |
661 | */ | |
ff93be5d | 662 | static int ledd_proc_show(struct seq_file *m, void *v) |
42cb8912 | 663 | { |
ff93be5d AD |
664 | seq_printf(m, "0x%08x\n", hotk->ledd_status); |
665 | return 0; | |
42cb8912 KK |
666 | } |
667 | ||
ff93be5d AD |
668 | static int ledd_proc_open(struct inode *inode, struct file *file) |
669 | { | |
670 | return single_open(file, ledd_proc_show, NULL); | |
671 | } | |
672 | ||
673 | static ssize_t ledd_proc_write(struct file *file, const char __user *buffer, | |
674 | size_t count, loff_t *pos) | |
42cb8912 | 675 | { |
6311f0da | 676 | int rv, value; |
42cb8912 | 677 | |
6311f0da DJ |
678 | rv = parse_arg(buffer, count, &value); |
679 | if (rv > 0) { | |
42cb8912 KK |
680 | if (!write_acpi_int |
681 | (hotk->handle, hotk->methods->mt_ledd, value, NULL)) | |
682 | printk(KERN_WARNING | |
683 | "Asus ACPI: LED display write failed\n"); | |
684 | else | |
685 | hotk->ledd_status = (u32) value; | |
6df05702 | 686 | } |
6311f0da | 687 | return rv; |
42cb8912 KK |
688 | } |
689 | ||
ff93be5d AD |
690 | static const struct file_operations ledd_proc_fops = { |
691 | .owner = THIS_MODULE, | |
692 | .open = ledd_proc_open, | |
693 | .read = seq_read, | |
694 | .llseek = seq_lseek, | |
695 | .release = single_release, | |
696 | .write = ledd_proc_write, | |
697 | }; | |
698 | ||
1da177e4 LT |
699 | /* |
700 | * Proc handlers for WLED | |
701 | */ | |
ff93be5d | 702 | static int wled_proc_show(struct seq_file *m, void *v) |
1da177e4 | 703 | { |
ff93be5d AD |
704 | seq_printf(m, "%d\n", read_led(hotk->methods->wled_status, WLED_ON)); |
705 | return 0; | |
1da177e4 LT |
706 | } |
707 | ||
ff93be5d AD |
708 | static int wled_proc_open(struct inode *inode, struct file *file) |
709 | { | |
710 | return single_open(file, wled_proc_show, NULL); | |
711 | } | |
712 | ||
713 | static ssize_t wled_proc_write(struct file *file, const char __user *buffer, | |
714 | size_t count, loff_t *pos) | |
1da177e4 LT |
715 | { |
716 | return write_led(buffer, count, hotk->methods->mt_wled, WLED_ON, 0); | |
717 | } | |
718 | ||
ff93be5d AD |
719 | static const struct file_operations wled_proc_fops = { |
720 | .owner = THIS_MODULE, | |
721 | .open = wled_proc_open, | |
722 | .read = seq_read, | |
723 | .llseek = seq_lseek, | |
724 | .release = single_release, | |
725 | .write = wled_proc_write, | |
726 | }; | |
727 | ||
e067aaa7 KK |
728 | /* |
729 | * Proc handlers for Bluetooth | |
730 | */ | |
ff93be5d | 731 | static int bluetooth_proc_show(struct seq_file *m, void *v) |
e067aaa7 | 732 | { |
ff93be5d AD |
733 | seq_printf(m, "%d\n", read_led(hotk->methods->bt_status, BT_ON)); |
734 | return 0; | |
e067aaa7 KK |
735 | } |
736 | ||
ff93be5d AD |
737 | static int bluetooth_proc_open(struct inode *inode, struct file *file) |
738 | { | |
739 | return single_open(file, bluetooth_proc_show, NULL); | |
740 | } | |
741 | ||
742 | static ssize_t bluetooth_proc_write(struct file *file, | |
743 | const char __user *buffer, size_t count, loff_t *pos) | |
e067aaa7 | 744 | { |
c6c38bac | 745 | /* Note: mt_bt_switch controls both internal Bluetooth adapter's |
e067aaa7 KK |
746 | presence and its LED */ |
747 | return write_led(buffer, count, hotk->methods->mt_bt_switch, BT_ON, 0); | |
748 | } | |
749 | ||
ff93be5d AD |
750 | static const struct file_operations bluetooth_proc_fops = { |
751 | .owner = THIS_MODULE, | |
752 | .open = bluetooth_proc_open, | |
753 | .read = seq_read, | |
754 | .llseek = seq_lseek, | |
755 | .release = single_release, | |
756 | .write = bluetooth_proc_write, | |
757 | }; | |
758 | ||
1da177e4 LT |
759 | /* |
760 | * Proc handlers for TLED | |
761 | */ | |
ff93be5d | 762 | static int tled_proc_show(struct seq_file *m, void *v) |
1da177e4 | 763 | { |
ff93be5d AD |
764 | seq_printf(m, "%d\n", read_led(hotk->methods->tled_status, TLED_ON)); |
765 | return 0; | |
1da177e4 LT |
766 | } |
767 | ||
ff93be5d AD |
768 | static int tled_proc_open(struct inode *inode, struct file *file) |
769 | { | |
770 | return single_open(file, tled_proc_show, NULL); | |
771 | } | |
772 | ||
773 | static ssize_t tled_proc_write(struct file *file, const char __user *buffer, | |
774 | size_t count, loff_t *pos) | |
1da177e4 LT |
775 | { |
776 | return write_led(buffer, count, hotk->methods->mt_tled, TLED_ON, 0); | |
777 | } | |
778 | ||
ff93be5d AD |
779 | static const struct file_operations tled_proc_fops = { |
780 | .owner = THIS_MODULE, | |
781 | .open = tled_proc_open, | |
782 | .read = seq_read, | |
783 | .llseek = seq_lseek, | |
784 | .release = single_release, | |
785 | .write = tled_proc_write, | |
786 | }; | |
787 | ||
1da177e4 LT |
788 | static int get_lcd_state(void) |
789 | { | |
790 | int lcd = 0; | |
791 | ||
31e0729a LT |
792 | if (hotk->model == L3H) { |
793 | /* L3H and the like have to be handled differently */ | |
1da177e4 LT |
794 | acpi_status status = 0; |
795 | struct acpi_object_list input; | |
796 | union acpi_object mt_params[2]; | |
797 | struct acpi_buffer output; | |
798 | union acpi_object out_obj; | |
4be44fcd | 799 | |
1da177e4 LT |
800 | input.count = 2; |
801 | input.pointer = mt_params; | |
c6c38bac | 802 | /* Note: the following values are partly guessed up, but |
1da177e4 LT |
803 | otherwise they seem to work */ |
804 | mt_params[0].type = ACPI_TYPE_INTEGER; | |
805 | mt_params[0].integer.value = 0x02; | |
806 | mt_params[1].type = ACPI_TYPE_INTEGER; | |
807 | mt_params[1].integer.value = 0x02; | |
808 | ||
809 | output.length = sizeof(out_obj); | |
810 | output.pointer = &out_obj; | |
4be44fcd LB |
811 | |
812 | status = | |
813 | acpi_evaluate_object(NULL, hotk->methods->lcd_status, | |
814 | &input, &output); | |
1da177e4 LT |
815 | if (status != AE_OK) |
816 | return -1; | |
817 | if (out_obj.type == ACPI_TYPE_INTEGER) | |
818 | /* That's what the AML code does */ | |
819 | lcd = out_obj.integer.value >> 8; | |
31e0729a | 820 | } else if (hotk->model == F3Sa) { |
27663c58 | 821 | unsigned long long tmp; |
31e0729a LT |
822 | union acpi_object param; |
823 | struct acpi_object_list input; | |
824 | acpi_status status; | |
825 | ||
826 | /* Read pin 11 */ | |
827 | param.type = ACPI_TYPE_INTEGER; | |
828 | param.integer.value = 0x11; | |
829 | input.count = 1; | |
830 | input.pointer = ¶m; | |
831 | ||
832 | status = acpi_evaluate_integer(NULL, hotk->methods->lcd_status, | |
833 | &input, &tmp); | |
834 | if (status != AE_OK) | |
835 | return -1; | |
836 | ||
837 | lcd = tmp; | |
838 | } else { | |
839 | /* We don't have to check anything if we are here */ | |
840 | if (!read_acpi_int(NULL, hotk->methods->lcd_status, &lcd)) | |
841 | printk(KERN_WARNING | |
842 | "Asus ACPI: Error reading LCD status\n"); | |
843 | ||
844 | if (hotk->model == L2D) | |
845 | lcd = ~lcd; | |
1da177e4 | 846 | } |
4be44fcd | 847 | |
1da177e4 LT |
848 | return (lcd & 1); |
849 | } | |
850 | ||
851 | static int set_lcd_state(int value) | |
852 | { | |
853 | int lcd = 0; | |
854 | acpi_status status = 0; | |
855 | ||
856 | lcd = value ? 1 : 0; | |
857 | if (lcd != get_lcd_state()) { | |
858 | /* switch */ | |
859 | if (hotk->model != L3H) { | |
860 | status = | |
4be44fcd LB |
861 | acpi_evaluate_object(NULL, |
862 | hotk->methods->mt_lcd_switch, | |
1da177e4 | 863 | NULL, NULL); |
c6c38bac MD |
864 | } else { |
865 | /* L3H and the like must be handled differently */ | |
4be44fcd LB |
866 | if (!write_acpi_int |
867 | (hotk->handle, hotk->methods->mt_lcd_switch, 0x07, | |
868 | NULL)) | |
1da177e4 | 869 | status = AE_ERROR; |
c6c38bac | 870 | /* L3H's AML executes EHK (0x07) upon Fn+F7 keypress, |
1da177e4 LT |
871 | the exact behaviour is simulated here */ |
872 | } | |
873 | if (ACPI_FAILURE(status)) | |
874 | printk(KERN_WARNING "Asus ACPI: Error switching LCD\n"); | |
875 | } | |
876 | return 0; | |
877 | ||
878 | } | |
879 | ||
ff93be5d | 880 | static int lcd_proc_show(struct seq_file *m, void *v) |
1da177e4 | 881 | { |
ff93be5d AD |
882 | seq_printf(m, "%d\n", get_lcd_state()); |
883 | return 0; | |
1da177e4 LT |
884 | } |
885 | ||
ff93be5d AD |
886 | static int lcd_proc_open(struct inode *inode, struct file *file) |
887 | { | |
888 | return single_open(file, lcd_proc_show, NULL); | |
889 | } | |
890 | ||
891 | static ssize_t lcd_proc_write(struct file *file, const char __user *buffer, | |
892 | size_t count, loff_t *pos) | |
1da177e4 | 893 | { |
6311f0da | 894 | int rv, value; |
4be44fcd | 895 | |
6311f0da DJ |
896 | rv = parse_arg(buffer, count, &value); |
897 | if (rv > 0) | |
1da177e4 | 898 | set_lcd_state(value); |
6311f0da | 899 | return rv; |
1da177e4 LT |
900 | } |
901 | ||
ff93be5d AD |
902 | static const struct file_operations lcd_proc_fops = { |
903 | .owner = THIS_MODULE, | |
904 | .open = lcd_proc_open, | |
905 | .read = seq_read, | |
906 | .llseek = seq_lseek, | |
907 | .release = single_release, | |
908 | .write = lcd_proc_write, | |
909 | }; | |
910 | ||
2039a6eb | 911 | static int read_brightness(struct backlight_device *bd) |
1da177e4 LT |
912 | { |
913 | int value; | |
4be44fcd LB |
914 | |
915 | if (hotk->methods->brightness_get) { /* SPLV/GPLV laptop */ | |
916 | if (!read_acpi_int(hotk->handle, hotk->methods->brightness_get, | |
1da177e4 | 917 | &value)) |
4be44fcd LB |
918 | printk(KERN_WARNING |
919 | "Asus ACPI: Error reading brightness\n"); | |
920 | } else if (hotk->methods->brightness_status) { /* For D1 for example */ | |
921 | if (!read_acpi_int(NULL, hotk->methods->brightness_status, | |
1da177e4 | 922 | &value)) |
4be44fcd LB |
923 | printk(KERN_WARNING |
924 | "Asus ACPI: Error reading brightness\n"); | |
925 | } else /* No GPLV method */ | |
1da177e4 LT |
926 | value = hotk->brightness; |
927 | return value; | |
928 | } | |
929 | ||
930 | /* | |
931 | * Change the brightness level | |
932 | */ | |
2039a6eb | 933 | static int set_brightness(int value) |
1da177e4 LT |
934 | { |
935 | acpi_status status = 0; | |
2039a6eb | 936 | int ret = 0; |
1da177e4 LT |
937 | |
938 | /* SPLV laptop */ | |
4be44fcd LB |
939 | if (hotk->methods->brightness_set) { |
940 | if (!write_acpi_int(hotk->handle, hotk->methods->brightness_set, | |
2e0ee69c | 941 | value, NULL)) { |
4be44fcd LB |
942 | printk(KERN_WARNING |
943 | "Asus ACPI: Error changing brightness\n"); | |
2039a6eb | 944 | ret = -EIO; |
2e0ee69c | 945 | } |
2039a6eb | 946 | goto out; |
1da177e4 LT |
947 | } |
948 | ||
949 | /* No SPLV method if we are here, act as appropriate */ | |
2039a6eb | 950 | value -= read_brightness(NULL); |
1da177e4 | 951 | while (value != 0) { |
4be44fcd LB |
952 | status = acpi_evaluate_object(NULL, (value > 0) ? |
953 | hotk->methods->brightness_up : | |
1da177e4 LT |
954 | hotk->methods->brightness_down, |
955 | NULL, NULL); | |
956 | (value > 0) ? value-- : value++; | |
2e0ee69c | 957 | if (ACPI_FAILURE(status)) { |
4be44fcd LB |
958 | printk(KERN_WARNING |
959 | "Asus ACPI: Error changing brightness\n"); | |
2039a6eb | 960 | ret = -EIO; |
2e0ee69c | 961 | } |
1da177e4 | 962 | } |
2039a6eb HM |
963 | out: |
964 | return ret; | |
965 | } | |
966 | ||
967 | static int set_brightness_status(struct backlight_device *bd) | |
968 | { | |
599a52d1 | 969 | return set_brightness(bd->props.brightness); |
1da177e4 LT |
970 | } |
971 | ||
ff93be5d | 972 | static int brn_proc_show(struct seq_file *m, void *v) |
1da177e4 | 973 | { |
ff93be5d AD |
974 | seq_printf(m, "%d\n", read_brightness(NULL)); |
975 | return 0; | |
1da177e4 LT |
976 | } |
977 | ||
ff93be5d AD |
978 | static int brn_proc_open(struct inode *inode, struct file *file) |
979 | { | |
980 | return single_open(file, brn_proc_show, NULL); | |
981 | } | |
982 | ||
983 | static ssize_t brn_proc_write(struct file *file, const char __user *buffer, | |
984 | size_t count, loff_t *pos) | |
1da177e4 | 985 | { |
6311f0da | 986 | int rv, value; |
1da177e4 | 987 | |
6311f0da DJ |
988 | rv = parse_arg(buffer, count, &value); |
989 | if (rv > 0) { | |
1da177e4 | 990 | value = (0 < value) ? ((15 < value) ? 15 : value) : 0; |
4be44fcd | 991 | /* 0 <= value <= 15 */ |
1da177e4 | 992 | set_brightness(value); |
1da177e4 | 993 | } |
6311f0da | 994 | return rv; |
1da177e4 LT |
995 | } |
996 | ||
ff93be5d AD |
997 | static const struct file_operations brn_proc_fops = { |
998 | .owner = THIS_MODULE, | |
999 | .open = brn_proc_open, | |
1000 | .read = seq_read, | |
1001 | .llseek = seq_lseek, | |
1002 | .release = single_release, | |
1003 | .write = brn_proc_write, | |
1004 | }; | |
1005 | ||
1da177e4 LT |
1006 | static void set_display(int value) |
1007 | { | |
1008 | /* no sanity check needed for now */ | |
4be44fcd | 1009 | if (!write_acpi_int(hotk->handle, hotk->methods->display_set, |
1da177e4 LT |
1010 | value, NULL)) |
1011 | printk(KERN_WARNING "Asus ACPI: Error setting display\n"); | |
1012 | return; | |
1013 | } | |
1014 | ||
1015 | /* | |
c6c38bac | 1016 | * Now, *this* one could be more user-friendly, but so far, no-one has |
1da177e4 LT |
1017 | * complained. The significance of bits is the same as in proc_write_disp() |
1018 | */ | |
ff93be5d | 1019 | static int disp_proc_show(struct seq_file *m, void *v) |
1da177e4 LT |
1020 | { |
1021 | int value = 0; | |
4be44fcd | 1022 | |
1da177e4 | 1023 | if (!read_acpi_int(hotk->handle, hotk->methods->display_get, &value)) |
4be44fcd LB |
1024 | printk(KERN_WARNING |
1025 | "Asus ACPI: Error reading display status\n"); | |
c6c38bac | 1026 | value &= 0x07; /* needed for some models, shouldn't hurt others */ |
ff93be5d AD |
1027 | seq_printf(m, "%d\n", value); |
1028 | return 0; | |
1029 | } | |
1030 | ||
1031 | static int disp_proc_open(struct inode *inode, struct file *file) | |
1032 | { | |
1033 | return single_open(file, disp_proc_show, NULL); | |
1da177e4 LT |
1034 | } |
1035 | ||
1036 | /* | |
c6c38bac MD |
1037 | * Experimental support for display switching. As of now: 1 should activate |
1038 | * the LCD output, 2 should do for CRT, and 4 for TV-Out. Any combination | |
1039 | * (bitwise) of these will suffice. I never actually tested 3 displays hooked | |
1040 | * up simultaneously, so be warned. See the acpi4asus README for more info. | |
1da177e4 | 1041 | */ |
ff93be5d AD |
1042 | static ssize_t disp_proc_write(struct file *file, const char __user *buffer, |
1043 | size_t count, loff_t *pos) | |
1da177e4 | 1044 | { |
6311f0da | 1045 | int rv, value; |
1da177e4 | 1046 | |
6311f0da DJ |
1047 | rv = parse_arg(buffer, count, &value); |
1048 | if (rv > 0) | |
1da177e4 | 1049 | set_display(value); |
6311f0da | 1050 | return rv; |
1da177e4 LT |
1051 | } |
1052 | ||
ff93be5d AD |
1053 | static const struct file_operations disp_proc_fops = { |
1054 | .owner = THIS_MODULE, | |
1055 | .open = disp_proc_open, | |
1056 | .read = seq_read, | |
1057 | .llseek = seq_lseek, | |
1058 | .release = single_release, | |
1059 | .write = disp_proc_write, | |
1060 | }; | |
1da177e4 LT |
1061 | |
1062 | static int | |
ff93be5d | 1063 | asus_proc_add(char *name, const struct file_operations *proc_fops, mode_t mode, |
4be44fcd | 1064 | struct acpi_device *device) |
1da177e4 | 1065 | { |
ff93be5d AD |
1066 | struct proc_dir_entry *proc; |
1067 | ||
1068 | proc = proc_create_data(name, mode, acpi_device_dir(device), | |
1069 | proc_fops, acpi_driver_data(device)); | |
4be44fcd | 1070 | if (!proc) { |
1da177e4 LT |
1071 | printk(KERN_WARNING " Unable to create %s fs entry\n", name); |
1072 | return -1; | |
1073 | } | |
1da177e4 LT |
1074 | proc->uid = asus_uid; |
1075 | proc->gid = asus_gid; | |
1076 | return 0; | |
1077 | } | |
1078 | ||
200739c1 | 1079 | static int asus_hotk_add_fs(struct acpi_device *device) |
1da177e4 LT |
1080 | { |
1081 | struct proc_dir_entry *proc; | |
1082 | mode_t mode; | |
4be44fcd | 1083 | |
1da177e4 LT |
1084 | /* |
1085 | * If parameter uid or gid is not changed, keep the default setting for | |
1086 | * our proc entries (-rw-rw-rw-) else, it means we care about security, | |
1087 | * and then set to -rw-rw---- | |
1088 | */ | |
1089 | ||
4be44fcd | 1090 | if ((asus_uid == 0) && (asus_gid == 0)) { |
1da177e4 LT |
1091 | mode = S_IFREG | S_IRUGO | S_IWUGO; |
1092 | } else { | |
1093 | mode = S_IFREG | S_IRUSR | S_IRGRP | S_IWUSR | S_IWGRP; | |
aea19aa0 KK |
1094 | printk(KERN_WARNING " asus_uid and asus_gid parameters are " |
1095 | "deprecated, use chown and chmod instead!\n"); | |
1da177e4 LT |
1096 | } |
1097 | ||
1098 | acpi_device_dir(device) = asus_proc_dir; | |
1099 | if (!acpi_device_dir(device)) | |
1100 | return -ENODEV; | |
1101 | ||
ff93be5d AD |
1102 | proc = proc_create(PROC_INFO, mode, acpi_device_dir(device), |
1103 | &asus_info_proc_fops); | |
1da177e4 | 1104 | if (proc) { |
1da177e4 LT |
1105 | proc->uid = asus_uid; |
1106 | proc->gid = asus_gid; | |
1107 | } else { | |
1108 | printk(KERN_WARNING " Unable to create " PROC_INFO | |
1109 | " fs entry\n"); | |
1110 | } | |
1111 | ||
1112 | if (hotk->methods->mt_wled) { | |
ff93be5d | 1113 | asus_proc_add(PROC_WLED, &wled_proc_fops, mode, device); |
1da177e4 LT |
1114 | } |
1115 | ||
42cb8912 | 1116 | if (hotk->methods->mt_ledd) { |
ff93be5d | 1117 | asus_proc_add(PROC_LEDD, &ledd_proc_fops, mode, device); |
42cb8912 KK |
1118 | } |
1119 | ||
1da177e4 | 1120 | if (hotk->methods->mt_mled) { |
ff93be5d | 1121 | asus_proc_add(PROC_MLED, &mled_proc_fops, mode, device); |
1da177e4 LT |
1122 | } |
1123 | ||
1124 | if (hotk->methods->mt_tled) { | |
ff93be5d | 1125 | asus_proc_add(PROC_TLED, &tled_proc_fops, mode, device); |
1da177e4 LT |
1126 | } |
1127 | ||
e067aaa7 | 1128 | if (hotk->methods->mt_bt_switch) { |
ff93be5d | 1129 | asus_proc_add(PROC_BT, &bluetooth_proc_fops, mode, device); |
e067aaa7 KK |
1130 | } |
1131 | ||
c6c38bac MD |
1132 | /* |
1133 | * We need both read node and write method as LCD switch is also | |
1134 | * accessible from the keyboard | |
1da177e4 LT |
1135 | */ |
1136 | if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) { | |
ff93be5d | 1137 | asus_proc_add(PROC_LCD, &lcd_proc_fops, mode, device); |
1da177e4 | 1138 | } |
4be44fcd | 1139 | |
1da177e4 LT |
1140 | if ((hotk->methods->brightness_up && hotk->methods->brightness_down) || |
1141 | (hotk->methods->brightness_get && hotk->methods->brightness_set)) { | |
ff93be5d | 1142 | asus_proc_add(PROC_BRN, &brn_proc_fops, mode, device); |
1da177e4 LT |
1143 | } |
1144 | ||
1145 | if (hotk->methods->display_set) { | |
ff93be5d | 1146 | asus_proc_add(PROC_DISP, &disp_proc_fops, mode, device); |
1da177e4 LT |
1147 | } |
1148 | ||
1149 | return 0; | |
1150 | } | |
1151 | ||
4be44fcd | 1152 | static int asus_hotk_remove_fs(struct acpi_device *device) |
1da177e4 | 1153 | { |
4be44fcd LB |
1154 | if (acpi_device_dir(device)) { |
1155 | remove_proc_entry(PROC_INFO, acpi_device_dir(device)); | |
1da177e4 | 1156 | if (hotk->methods->mt_wled) |
4be44fcd | 1157 | remove_proc_entry(PROC_WLED, acpi_device_dir(device)); |
1da177e4 | 1158 | if (hotk->methods->mt_mled) |
4be44fcd | 1159 | remove_proc_entry(PROC_MLED, acpi_device_dir(device)); |
1da177e4 | 1160 | if (hotk->methods->mt_tled) |
4be44fcd | 1161 | remove_proc_entry(PROC_TLED, acpi_device_dir(device)); |
42cb8912 KK |
1162 | if (hotk->methods->mt_ledd) |
1163 | remove_proc_entry(PROC_LEDD, acpi_device_dir(device)); | |
e067aaa7 KK |
1164 | if (hotk->methods->mt_bt_switch) |
1165 | remove_proc_entry(PROC_BT, acpi_device_dir(device)); | |
1da177e4 LT |
1166 | if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) |
1167 | remove_proc_entry(PROC_LCD, acpi_device_dir(device)); | |
4be44fcd LB |
1168 | if ((hotk->methods->brightness_up |
1169 | && hotk->methods->brightness_down) | |
1170 | || (hotk->methods->brightness_get | |
1171 | && hotk->methods->brightness_set)) | |
1da177e4 LT |
1172 | remove_proc_entry(PROC_BRN, acpi_device_dir(device)); |
1173 | if (hotk->methods->display_set) | |
1174 | remove_proc_entry(PROC_DISP, acpi_device_dir(device)); | |
1175 | } | |
1176 | return 0; | |
1177 | } | |
1178 | ||
352fa202 | 1179 | static void asus_hotk_notify(struct acpi_device *device, u32 event) |
1da177e4 | 1180 | { |
4be44fcd | 1181 | /* TODO Find a better way to handle events count. */ |
1da177e4 LT |
1182 | if (!hotk) |
1183 | return; | |
1184 | ||
352fa202 BH |
1185 | /* |
1186 | * The BIOS *should* be sending us device events, but apparently | |
1187 | * Asus uses system events instead, so just ignore any device | |
1188 | * events we get. | |
1189 | */ | |
1190 | if (event > ACPI_MAX_SYS_NOTIFY) | |
1191 | return; | |
1192 | ||
c6c38bac | 1193 | if ((event & ~((u32) BR_UP)) < 16) |
1da177e4 | 1194 | hotk->brightness = (event & ~((u32) BR_UP)); |
c6c38bac | 1195 | else if ((event & ~((u32) BR_DOWN)) < 16) |
1da177e4 | 1196 | hotk->brightness = (event & ~((u32) BR_DOWN)); |
1da177e4 | 1197 | |
14e04fb3 | 1198 | acpi_bus_generate_proc_event(hotk->device, event, |
1da177e4 LT |
1199 | hotk->event_count[event % 128]++); |
1200 | ||
1201 | return; | |
1202 | } | |
1203 | ||
ffab0d95 KK |
1204 | /* |
1205 | * Match the model string to the list of supported models. Return END_MODEL if | |
1206 | * no match or model is NULL. | |
1207 | */ | |
1208 | static int asus_model_match(char *model) | |
1209 | { | |
1210 | if (model == NULL) | |
1211 | return END_MODEL; | |
1212 | ||
1213 | if (strncmp(model, "L3D", 3) == 0) | |
1214 | return L3D; | |
1215 | else if (strncmp(model, "L2E", 3) == 0 || | |
1216 | strncmp(model, "L3H", 3) == 0 || strncmp(model, "L5D", 3) == 0) | |
1217 | return L3H; | |
1218 | else if (strncmp(model, "L3", 2) == 0 || strncmp(model, "L2B", 3) == 0) | |
1219 | return L3C; | |
1220 | else if (strncmp(model, "L8L", 3) == 0) | |
1221 | return L8L; | |
1222 | else if (strncmp(model, "L4R", 3) == 0) | |
1223 | return L4R; | |
1224 | else if (strncmp(model, "M6N", 3) == 0 || strncmp(model, "W3N", 3) == 0) | |
1225 | return M6N; | |
1226 | else if (strncmp(model, "M6R", 3) == 0 || strncmp(model, "A3G", 3) == 0) | |
1227 | return M6R; | |
1228 | else if (strncmp(model, "M2N", 3) == 0 || | |
1229 | strncmp(model, "M3N", 3) == 0 || | |
1230 | strncmp(model, "M5N", 3) == 0 || | |
ffab0d95 | 1231 | strncmp(model, "S1N", 3) == 0 || |
6268f50d | 1232 | strncmp(model, "S5N", 3) == 0) |
ffab0d95 KK |
1233 | return xxN; |
1234 | else if (strncmp(model, "M1", 2) == 0) | |
1235 | return M1A; | |
1236 | else if (strncmp(model, "M2", 2) == 0 || strncmp(model, "L4E", 3) == 0) | |
1237 | return M2E; | |
1238 | else if (strncmp(model, "L2", 2) == 0) | |
1239 | return L2D; | |
1240 | else if (strncmp(model, "L8", 2) == 0) | |
1241 | return S1x; | |
1242 | else if (strncmp(model, "D1", 2) == 0) | |
1243 | return D1x; | |
1244 | else if (strncmp(model, "A1", 2) == 0) | |
1245 | return A1x; | |
1246 | else if (strncmp(model, "A2", 2) == 0) | |
1247 | return A2x; | |
1248 | else if (strncmp(model, "J1", 2) == 0) | |
1249 | return S2x; | |
1250 | else if (strncmp(model, "L5", 2) == 0) | |
1251 | return L5x; | |
1252 | else if (strncmp(model, "A4G", 3) == 0) | |
1253 | return A4G; | |
1254 | else if (strncmp(model, "W1N", 3) == 0) | |
1255 | return W1N; | |
288f3ad4 M |
1256 | else if (strncmp(model, "W3V", 3) == 0) |
1257 | return W3V; | |
ffab0d95 KK |
1258 | else if (strncmp(model, "W5A", 3) == 0) |
1259 | return W5A; | |
1021e211 CC |
1260 | else if (strncmp(model, "R1F", 3) == 0) |
1261 | return R1F; | |
1c0f0575 MC |
1262 | else if (strncmp(model, "A4S", 3) == 0) |
1263 | return A4S; | |
31e0729a LT |
1264 | else if (strncmp(model, "F3Sa", 4) == 0) |
1265 | return F3Sa; | |
ffab0d95 KK |
1266 | else |
1267 | return END_MODEL; | |
1268 | } | |
1269 | ||
1da177e4 LT |
1270 | /* |
1271 | * This function is used to initialize the hotk with right values. In this | |
1272 | * method, we can make all the detection we want, and modify the hotk struct | |
1273 | */ | |
200739c1 | 1274 | static int asus_hotk_get_info(void) |
1da177e4 LT |
1275 | { |
1276 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
1da177e4 LT |
1277 | union acpi_object *model = NULL; |
1278 | int bsts_result; | |
ffab0d95 | 1279 | char *string = NULL; |
1da177e4 LT |
1280 | acpi_status status; |
1281 | ||
1282 | /* | |
c6c38bac MD |
1283 | * Get DSDT headers early enough to allow for differentiating between |
1284 | * models, but late enough to allow acpi_bus_register_driver() to fail | |
1da177e4 LT |
1285 | * before doing anything ACPI-specific. Should we encounter a machine, |
1286 | * which needs special handling (i.e. its hotkey device has a different | |
1287 | * HID), this bit will be moved. A global variable asus_info contains | |
1288 | * the DSDT header. | |
1289 | */ | |
ad71860a | 1290 | status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus_info); |
1da177e4 LT |
1291 | if (ACPI_FAILURE(status)) |
1292 | printk(KERN_WARNING " Couldn't get the DSDT table header\n"); | |
1da177e4 LT |
1293 | |
1294 | /* We have to write 0 on init this far for all ASUS models */ | |
1295 | if (!write_acpi_int(hotk->handle, "INIT", 0, &buffer)) { | |
1296 | printk(KERN_ERR " Hotkey initialization failed\n"); | |
1297 | return -ENODEV; | |
1298 | } | |
1299 | ||
1300 | /* This needs to be called for some laptops to init properly */ | |
1301 | if (!read_acpi_int(hotk->handle, "BSTS", &bsts_result)) | |
1302 | printk(KERN_WARNING " Error calling BSTS\n"); | |
1303 | else if (bsts_result) | |
4be44fcd LB |
1304 | printk(KERN_NOTICE " BSTS called, 0x%02x returned\n", |
1305 | bsts_result); | |
1da177e4 | 1306 | |
b697b537 | 1307 | /* |
ffab0d95 | 1308 | * Try to match the object returned by INIT to the specific model. |
c6c38bac MD |
1309 | * Handle every possible object (or the lack of thereof) the DSDT |
1310 | * writers might throw at us. When in trouble, we pass NULL to | |
ffab0d95 | 1311 | * asus_model_match() and try something completely different. |
b697b537 | 1312 | */ |
ffab0d95 | 1313 | if (buffer.pointer) { |
50dd0969 | 1314 | model = buffer.pointer; |
ffab0d95 KK |
1315 | switch (model->type) { |
1316 | case ACPI_TYPE_STRING: | |
1317 | string = model->string.pointer; | |
1318 | break; | |
1319 | case ACPI_TYPE_BUFFER: | |
1320 | string = model->buffer.pointer; | |
1321 | break; | |
1322 | default: | |
1323 | kfree(model); | |
de47b69c | 1324 | model = NULL; |
ffab0d95 KK |
1325 | break; |
1326 | } | |
1327 | } | |
1328 | hotk->model = asus_model_match(string); | |
1329 | if (hotk->model == END_MODEL) { /* match failed */ | |
1330 | if (asus_info && | |
1da177e4 LT |
1331 | strncmp(asus_info->oem_table_id, "ODEM", 4) == 0) { |
1332 | hotk->model = P30; | |
4be44fcd LB |
1333 | printk(KERN_NOTICE |
1334 | " Samsung P30 detected, supported\n"); | |
3bf460f7 AL |
1335 | hotk->methods = &model_conf[hotk->model]; |
1336 | kfree(model); | |
1337 | return 0; | |
1da177e4 LT |
1338 | } else { |
1339 | hotk->model = M2E; | |
ffab0d95 KK |
1340 | printk(KERN_NOTICE " unsupported model %s, trying " |
1341 | "default values\n", string); | |
1342 | printk(KERN_NOTICE | |
1343 | " send /proc/acpi/dsdt to the developers\n"); | |
77453840 ZR |
1344 | kfree(model); |
1345 | return -ENODEV; | |
1da177e4 | 1346 | } |
1da177e4 | 1347 | } |
1da177e4 | 1348 | hotk->methods = &model_conf[hotk->model]; |
ffab0d95 | 1349 | printk(KERN_NOTICE " %s model detected, supported\n", string); |
1da177e4 LT |
1350 | |
1351 | /* Sort of per-model blacklist */ | |
ffab0d95 | 1352 | if (strncmp(string, "L2B", 3) == 0) |
4be44fcd | 1353 | hotk->methods->lcd_status = NULL; |
c6c38bac | 1354 | /* L2B is similar enough to L3C to use its settings, with this only |
1da177e4 | 1355 | exception */ |
ffab0d95 | 1356 | else if (strncmp(string, "A3G", 3) == 0) |
ed2cb07b KK |
1357 | hotk->methods->lcd_status = "\\BLFG"; |
1358 | /* A3G is like M6R */ | |
ffab0d95 KK |
1359 | else if (strncmp(string, "S5N", 3) == 0 || |
1360 | strncmp(string, "M5N", 3) == 0 || | |
1361 | strncmp(string, "W3N", 3) == 0) | |
4be44fcd | 1362 | hotk->methods->mt_mled = NULL; |
c067a789 | 1363 | /* S5N, M5N and W3N have no MLED */ |
ffab0d95 | 1364 | else if (strncmp(string, "L5D", 3) == 0) |
ebccb848 KK |
1365 | hotk->methods->mt_wled = NULL; |
1366 | /* L5D's WLED is not controlled by ACPI */ | |
96d11420 | 1367 | else if (strncmp(string, "M2N", 3) == 0 || |
288f3ad4 | 1368 | strncmp(string, "W3V", 3) == 0 || |
96d11420 | 1369 | strncmp(string, "S1N", 3) == 0) |
4be44fcd | 1370 | hotk->methods->mt_wled = "WLED"; |
288f3ad4 | 1371 | /* M2N, S1N and W3V have a usable WLED */ |
1da177e4 LT |
1372 | else if (asus_info) { |
1373 | if (strncmp(asus_info->oem_table_id, "L1", 2) == 0) | |
1374 | hotk->methods->mled_status = NULL; | |
4be44fcd | 1375 | /* S1300A reports L84F, but L1400B too, account for that */ |
1da177e4 LT |
1376 | } |
1377 | ||
02438d87 | 1378 | kfree(model); |
1da177e4 | 1379 | |
d47bb5b2 | 1380 | return 0; |
1da177e4 LT |
1381 | } |
1382 | ||
200739c1 | 1383 | static int asus_hotk_check(void) |
1da177e4 LT |
1384 | { |
1385 | int result = 0; | |
1386 | ||
1387 | result = acpi_bus_get_status(hotk->device); | |
1388 | if (result) | |
1389 | return result; | |
1390 | ||
1391 | if (hotk->device->status.present) { | |
1392 | result = asus_hotk_get_info(); | |
1393 | } else { | |
1394 | printk(KERN_ERR " Hotkey device not present, aborting\n"); | |
1395 | return -EINVAL; | |
1396 | } | |
1397 | ||
1398 | return result; | |
1399 | } | |
1400 | ||
578b333b BH |
1401 | static int asus_hotk_found; |
1402 | ||
200739c1 | 1403 | static int asus_hotk_add(struct acpi_device *device) |
1da177e4 LT |
1404 | { |
1405 | acpi_status status = AE_OK; | |
1406 | int result; | |
1407 | ||
1da177e4 LT |
1408 | printk(KERN_NOTICE "Asus Laptop ACPI Extras version %s\n", |
1409 | ASUS_ACPI_VERSION); | |
1410 | ||
36bcbec7 | 1411 | hotk = kzalloc(sizeof(struct asus_hotk), GFP_KERNEL); |
1da177e4 LT |
1412 | if (!hotk) |
1413 | return -ENOMEM; | |
1da177e4 LT |
1414 | |
1415 | hotk->handle = device->handle; | |
1416 | strcpy(acpi_device_name(device), ACPI_HOTK_DEVICE_NAME); | |
1417 | strcpy(acpi_device_class(device), ACPI_HOTK_CLASS); | |
db89b4f0 | 1418 | device->driver_data = hotk; |
1da177e4 LT |
1419 | hotk->device = device; |
1420 | ||
1da177e4 LT |
1421 | result = asus_hotk_check(); |
1422 | if (result) | |
1423 | goto end; | |
1424 | ||
1425 | result = asus_hotk_add_fs(device); | |
1426 | if (result) | |
1427 | goto end; | |
1428 | ||
1da177e4 | 1429 | /* For laptops without GPLV: init the hotk->brightness value */ |
4be44fcd LB |
1430 | if ((!hotk->methods->brightness_get) |
1431 | && (!hotk->methods->brightness_status) | |
a170a531 | 1432 | && (hotk->methods->brightness_up && hotk->methods->brightness_down)) { |
4be44fcd LB |
1433 | status = |
1434 | acpi_evaluate_object(NULL, hotk->methods->brightness_down, | |
1435 | NULL, NULL); | |
1da177e4 LT |
1436 | if (ACPI_FAILURE(status)) |
1437 | printk(KERN_WARNING " Error changing brightness\n"); | |
1438 | else { | |
4be44fcd LB |
1439 | status = |
1440 | acpi_evaluate_object(NULL, | |
1441 | hotk->methods->brightness_up, | |
1442 | NULL, NULL); | |
1da177e4 | 1443 | if (ACPI_FAILURE(status)) |
4be44fcd | 1444 | printk(KERN_WARNING " Strange, error changing" |
1da177e4 LT |
1445 | " brightness\n"); |
1446 | } | |
1447 | } | |
1448 | ||
578b333b BH |
1449 | asus_hotk_found = 1; |
1450 | ||
42cb8912 KK |
1451 | /* LED display is off by default */ |
1452 | hotk->ledd_status = 0xFFF; | |
1453 | ||
c6c38bac MD |
1454 | end: |
1455 | if (result) | |
1da177e4 | 1456 | kfree(hotk); |
1da177e4 LT |
1457 | |
1458 | return result; | |
1459 | } | |
1460 | ||
1da177e4 LT |
1461 | static int asus_hotk_remove(struct acpi_device *device, int type) |
1462 | { | |
1da177e4 LT |
1463 | asus_hotk_remove_fs(device); |
1464 | ||
1465 | kfree(hotk); | |
1466 | ||
1467 | return 0; | |
1468 | } | |
1469 | ||
599a52d1 | 1470 | static struct backlight_ops asus_backlight_data = { |
c6c38bac MD |
1471 | .get_brightness = read_brightness, |
1472 | .update_status = set_brightness_status, | |
2039a6eb HM |
1473 | }; |
1474 | ||
b2b77b23 | 1475 | static void asus_acpi_exit(void) |
2039a6eb HM |
1476 | { |
1477 | if (asus_backlight_device) | |
1478 | backlight_device_unregister(asus_backlight_device); | |
1479 | ||
1480 | acpi_bus_unregister_driver(&asus_hotk_driver); | |
1481 | remove_proc_entry(PROC_ASUS, acpi_root_dir); | |
1482 | ||
2039a6eb HM |
1483 | return; |
1484 | } | |
1485 | ||
1da177e4 LT |
1486 | static int __init asus_acpi_init(void) |
1487 | { | |
a19a6ee6 | 1488 | struct backlight_properties props; |
1da177e4 LT |
1489 | int result; |
1490 | ||
5a4a9f6f AJ |
1491 | result = acpi_bus_register_driver(&asus_hotk_driver); |
1492 | if (result < 0) | |
1493 | return result; | |
1da177e4 LT |
1494 | |
1495 | asus_proc_dir = proc_mkdir(PROC_ASUS, acpi_root_dir); | |
1496 | if (!asus_proc_dir) { | |
1497 | printk(KERN_ERR "Asus ACPI: Unable to create /proc entry\n"); | |
5a4a9f6f | 1498 | acpi_bus_unregister_driver(&asus_hotk_driver); |
1da177e4 LT |
1499 | return -ENODEV; |
1500 | } | |
1da177e4 | 1501 | |
578b333b BH |
1502 | /* |
1503 | * This is a bit of a kludge. We only want this module loaded | |
1504 | * for ASUS systems, but there's currently no way to probe the | |
1505 | * ACPI namespace for ASUS HIDs. So we just return failure if | |
1506 | * we didn't find one, which will cause the module to be | |
1507 | * unloaded. | |
1508 | */ | |
1509 | if (!asus_hotk_found) { | |
1da177e4 LT |
1510 | acpi_bus_unregister_driver(&asus_hotk_driver); |
1511 | remove_proc_entry(PROC_ASUS, acpi_root_dir); | |
5ebffd7c | 1512 | return -ENODEV; |
1da177e4 LT |
1513 | } |
1514 | ||
a19a6ee6 MG |
1515 | memset(&props, 0, sizeof(struct backlight_properties)); |
1516 | props.max_brightness = 15; | |
c6c38bac | 1517 | asus_backlight_device = backlight_device_register("asus", NULL, NULL, |
a19a6ee6 MG |
1518 | &asus_backlight_data, |
1519 | &props); | |
c6c38bac | 1520 | if (IS_ERR(asus_backlight_device)) { |
2039a6eb HM |
1521 | printk(KERN_ERR "Could not register asus backlight device\n"); |
1522 | asus_backlight_device = NULL; | |
1523 | asus_acpi_exit(); | |
5ebffd7c | 1524 | return -ENODEV; |
2039a6eb | 1525 | } |
1da177e4 | 1526 | |
2039a6eb | 1527 | return 0; |
1da177e4 LT |
1528 | } |
1529 | ||
1530 | module_init(asus_acpi_init); | |
1531 | module_exit(asus_acpi_exit); |