Commit | Line | Data |
---|---|---|
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> | |
2039a6eb | 38 | #include <linux/backlight.h> |
1da177e4 LT |
39 | #include <acpi/acpi_drivers.h> |
40 | #include <acpi/acpi_bus.h> | |
41 | #include <asm/uaccess.h> | |
42 | ||
a170a531 | 43 | #define ASUS_ACPI_VERSION "0.30" |
1da177e4 LT |
44 | |
45 | #define PROC_ASUS "asus" //the directory | |
46 | #define PROC_MLED "mled" | |
47 | #define PROC_WLED "wled" | |
48 | #define PROC_TLED "tled" | |
e067aaa7 | 49 | #define PROC_BT "bluetooth" |
42cb8912 | 50 | #define PROC_LEDD "ledd" |
1da177e4 LT |
51 | #define PROC_INFO "info" |
52 | #define PROC_LCD "lcd" | |
53 | #define PROC_BRN "brn" | |
54 | #define PROC_DISP "disp" | |
55 | ||
56 | #define ACPI_HOTK_NAME "Asus Laptop ACPI Extras Driver" | |
57 | #define ACPI_HOTK_CLASS "hotkey" | |
58 | #define ACPI_HOTK_DEVICE_NAME "Hotkey" | |
1da177e4 LT |
59 | |
60 | /* | |
61 | * Some events we use, same for all Asus | |
62 | */ | |
4be44fcd | 63 | #define BR_UP 0x10 |
1da177e4 LT |
64 | #define BR_DOWN 0x20 |
65 | ||
66 | /* | |
67 | * Flags for hotk status | |
68 | */ | |
e067aaa7 KK |
69 | #define MLED_ON 0x01 //mail LED |
70 | #define WLED_ON 0x02 //wireless LED | |
71 | #define TLED_ON 0x04 //touchpad LED | |
72 | #define BT_ON 0x08 //internal Bluetooth | |
1da177e4 LT |
73 | |
74 | MODULE_AUTHOR("Julien Lerouge, Karol Kozimor"); | |
75 | MODULE_DESCRIPTION(ACPI_HOTK_NAME); | |
76 | MODULE_LICENSE("GPL"); | |
77 | ||
1da177e4 LT |
78 | static uid_t asus_uid; |
79 | static gid_t asus_gid; | |
80 | module_param(asus_uid, uint, 0); | |
aea19aa0 | 81 | MODULE_PARM_DESC(asus_uid, "UID for entries in /proc/acpi/asus.\n"); |
1da177e4 | 82 | module_param(asus_gid, uint, 0); |
aea19aa0 | 83 | MODULE_PARM_DESC(asus_gid, "GID for entries in /proc/acpi/asus.\n"); |
1da177e4 | 84 | |
1da177e4 LT |
85 | /* For each model, all features implemented, |
86 | * those marked with R are relative to HOTK, A for absolute */ | |
87 | struct model_data { | |
4be44fcd LB |
88 | char *name; //name of the laptop________________A |
89 | char *mt_mled; //method to handle mled_____________R | |
90 | char *mled_status; //node to handle mled reading_______A | |
91 | char *mt_wled; //method to handle wled_____________R | |
92 | char *wled_status; //node to handle wled reading_______A | |
93 | char *mt_tled; //method to handle tled_____________R | |
94 | char *tled_status; //node to handle tled reading_______A | |
42cb8912 | 95 | char *mt_ledd; //method to handle LED display______R |
e067aaa7 KK |
96 | char *mt_bt_switch; //method to switch Bluetooth on/off_R |
97 | char *bt_status; //no model currently supports this__? | |
98 | char *mt_lcd_switch; //method to turn LCD on/off_________A | |
4be44fcd LB |
99 | char *lcd_status; //node to read LCD panel state______A |
100 | char *brightness_up; //method to set brightness up_______A | |
101 | char *brightness_down; //guess what ?______________________A | |
102 | char *brightness_set; //method to set absolute brightness_R | |
103 | char *brightness_get; //method to get absolute brightness_R | |
104 | char *brightness_status; //node to get brightness____________A | |
105 | char *display_set; //method to set video output________R | |
106 | char *display_get; //method to get video output________R | |
1da177e4 LT |
107 | }; |
108 | ||
109 | /* | |
110 | * This is the main structure, we can use it to store anything interesting | |
111 | * about the hotk device | |
112 | */ | |
113 | struct asus_hotk { | |
4be44fcd LB |
114 | struct acpi_device *device; //the device we are in |
115 | acpi_handle handle; //the handle of the hotk device | |
116 | char status; //status of the hotk, for LEDs, ... | |
42cb8912 | 117 | u32 ledd_status; //status of the LED display |
4be44fcd LB |
118 | struct model_data *methods; //methods available on the laptop |
119 | u8 brightness; //brightness level | |
1da177e4 | 120 | enum { |
4be44fcd LB |
121 | A1x = 0, //A1340D, A1300F |
122 | A2x, //A2500H | |
f78c589d | 123 | A4G, //A4700G |
4be44fcd LB |
124 | D1x, //D1 |
125 | L2D, //L2000D | |
126 | L3C, //L3800C | |
127 | L3D, //L3400D | |
ebccb848 | 128 | L3H, //L3H, L2000E, L5D |
4be44fcd LB |
129 | L4R, //L4500R |
130 | L5x, //L5800C | |
131 | L8L, //L8400L | |
132 | M1A, //M1300A | |
133 | M2E, //M2400E, L4400L | |
c067a789 | 134 | M6N, //M6800N, W3400N |
ed2cb07b | 135 | M6R, //M6700R, A3000G |
4be44fcd LB |
136 | P30, //Samsung P30 |
137 | S1x, //S1300A, but also L1400B and M2400A (L84F) | |
138 | S2x, //S200 (J1 reported), Victor MP-XP7210 | |
42cb8912 | 139 | W1N, //W1000N |
e067aaa7 | 140 | W5A, //W5A |
288f3ad4 | 141 | W3V, //W3030V |
42cb8912 | 142 | xxN, //M2400N, M3700N, M5200N, M6800N, S1300N, S5200N |
1c0f0575 | 143 | A4S, //Z81sp |
4be44fcd | 144 | //(Centrino) |
31e0729a | 145 | F3Sa, |
1da177e4 | 146 | END_MODEL |
4be44fcd LB |
147 | } model; //Models currently supported |
148 | u16 event_count[128]; //count for each event TODO make this better | |
1da177e4 LT |
149 | }; |
150 | ||
151 | /* Here we go */ | |
152 | #define A1x_PREFIX "\\_SB.PCI0.ISA.EC0." | |
153 | #define L3C_PREFIX "\\_SB.PCI0.PX40.ECD0." | |
154 | #define M1A_PREFIX "\\_SB.PCI0.PX40.EC0." | |
155 | #define P30_PREFIX "\\_SB.PCI0.LPCB.EC0." | |
156 | #define S1x_PREFIX "\\_SB.PCI0.PX40." | |
157 | #define S2x_PREFIX A1x_PREFIX | |
158 | #define xxN_PREFIX "\\_SB.PCI0.SBRG.EC0." | |
159 | ||
160 | static struct model_data model_conf[END_MODEL] = { | |
4be44fcd | 161 | /* |
1da177e4 LT |
162 | * TODO I have seen a SWBX and AIBX method on some models, like L1400B, |
163 | * it seems to be a kind of switch, but what for ? | |
1da177e4 LT |
164 | */ |
165 | ||
166 | { | |
4be44fcd LB |
167 | .name = "A1x", |
168 | .mt_mled = "MLED", | |
169 | .mled_status = "\\MAIL", | |
170 | .mt_lcd_switch = A1x_PREFIX "_Q10", | |
171 | .lcd_status = "\\BKLI", | |
172 | .brightness_up = A1x_PREFIX "_Q0E", | |
173 | .brightness_down = A1x_PREFIX "_Q0F"}, | |
1da177e4 LT |
174 | |
175 | { | |
4be44fcd LB |
176 | .name = "A2x", |
177 | .mt_mled = "MLED", | |
178 | .mt_wled = "WLED", | |
179 | .wled_status = "\\SG66", | |
180 | .mt_lcd_switch = "\\Q10", | |
181 | .lcd_status = "\\BAOF", | |
182 | .brightness_set = "SPLV", | |
183 | .brightness_get = "GPLV", | |
184 | .display_set = "SDSP", | |
185 | .display_get = "\\INFB"}, | |
1da177e4 | 186 | |
f78c589d KK |
187 | { |
188 | .name = "A4G", | |
189 | .mt_mled = "MLED", | |
190 | /* WLED present, but not controlled by ACPI */ | |
191 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
192 | .brightness_set = "SPLV", | |
193 | .brightness_get = "GPLV", | |
194 | .display_set = "SDSP", | |
195 | .display_get = "\\ADVG"}, | |
196 | ||
1da177e4 | 197 | { |
4be44fcd LB |
198 | .name = "D1x", |
199 | .mt_mled = "MLED", | |
200 | .mt_lcd_switch = "\\Q0D", | |
201 | .lcd_status = "\\GP11", | |
202 | .brightness_up = "\\Q0C", | |
203 | .brightness_down = "\\Q0B", | |
204 | .brightness_status = "\\BLVL", | |
205 | .display_set = "SDSP", | |
206 | .display_get = "\\INFB"}, | |
1da177e4 LT |
207 | |
208 | { | |
4be44fcd LB |
209 | .name = "L2D", |
210 | .mt_mled = "MLED", | |
211 | .mled_status = "\\SGP6", | |
212 | .mt_wled = "WLED", | |
213 | .wled_status = "\\RCP3", | |
214 | .mt_lcd_switch = "\\Q10", | |
215 | .lcd_status = "\\SGP0", | |
216 | .brightness_up = "\\Q0E", | |
217 | .brightness_down = "\\Q0F", | |
218 | .display_set = "SDSP", | |
219 | .display_get = "\\INFB"}, | |
1da177e4 LT |
220 | |
221 | { | |
4be44fcd LB |
222 | .name = "L3C", |
223 | .mt_mled = "MLED", | |
224 | .mt_wled = "WLED", | |
225 | .mt_lcd_switch = L3C_PREFIX "_Q10", | |
226 | .lcd_status = "\\GL32", | |
227 | .brightness_set = "SPLV", | |
228 | .brightness_get = "GPLV", | |
229 | .display_set = "SDSP", | |
230 | .display_get = "\\_SB.PCI0.PCI1.VGAC.NMAP"}, | |
1da177e4 LT |
231 | |
232 | { | |
4be44fcd LB |
233 | .name = "L3D", |
234 | .mt_mled = "MLED", | |
235 | .mled_status = "\\MALD", | |
236 | .mt_wled = "WLED", | |
237 | .mt_lcd_switch = "\\Q10", | |
238 | .lcd_status = "\\BKLG", | |
239 | .brightness_set = "SPLV", | |
240 | .brightness_get = "GPLV", | |
241 | .display_set = "SDSP", | |
242 | .display_get = "\\INFB"}, | |
1da177e4 LT |
243 | |
244 | { | |
4be44fcd LB |
245 | .name = "L3H", |
246 | .mt_mled = "MLED", | |
247 | .mt_wled = "WLED", | |
248 | .mt_lcd_switch = "EHK", | |
249 | .lcd_status = "\\_SB.PCI0.PM.PBC", | |
250 | .brightness_set = "SPLV", | |
251 | .brightness_get = "GPLV", | |
252 | .display_set = "SDSP", | |
253 | .display_get = "\\INFB"}, | |
1da177e4 LT |
254 | |
255 | { | |
4be44fcd LB |
256 | .name = "L4R", |
257 | .mt_mled = "MLED", | |
258 | .mt_wled = "WLED", | |
259 | .wled_status = "\\_SB.PCI0.SBRG.SG13", | |
260 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
261 | .lcd_status = "\\_SB.PCI0.SBSM.SEO4", | |
262 | .brightness_set = "SPLV", | |
263 | .brightness_get = "GPLV", | |
264 | .display_set = "SDSP", | |
265 | .display_get = "\\_SB.PCI0.P0P1.VGA.GETD"}, | |
1da177e4 LT |
266 | |
267 | { | |
4be44fcd LB |
268 | .name = "L5x", |
269 | .mt_mled = "MLED", | |
1da177e4 | 270 | /* WLED present, but not controlled by ACPI */ |
4be44fcd LB |
271 | .mt_tled = "TLED", |
272 | .mt_lcd_switch = "\\Q0D", | |
273 | .lcd_status = "\\BAOF", | |
274 | .brightness_set = "SPLV", | |
275 | .brightness_get = "GPLV", | |
276 | .display_set = "SDSP", | |
277 | .display_get = "\\INFB"}, | |
1da177e4 LT |
278 | |
279 | { | |
4be44fcd | 280 | .name = "L8L" |
1da177e4 | 281 | /* No features, but at least support the hotkeys */ |
4be44fcd | 282 | }, |
1da177e4 LT |
283 | |
284 | { | |
4be44fcd LB |
285 | .name = "M1A", |
286 | .mt_mled = "MLED", | |
287 | .mt_lcd_switch = M1A_PREFIX "Q10", | |
288 | .lcd_status = "\\PNOF", | |
289 | .brightness_up = M1A_PREFIX "Q0E", | |
290 | .brightness_down = M1A_PREFIX "Q0F", | |
291 | .brightness_status = "\\BRIT", | |
292 | .display_set = "SDSP", | |
293 | .display_get = "\\INFB"}, | |
1da177e4 LT |
294 | |
295 | { | |
4be44fcd LB |
296 | .name = "M2E", |
297 | .mt_mled = "MLED", | |
298 | .mt_wled = "WLED", | |
299 | .mt_lcd_switch = "\\Q10", | |
300 | .lcd_status = "\\GP06", | |
301 | .brightness_set = "SPLV", | |
302 | .brightness_get = "GPLV", | |
303 | .display_set = "SDSP", | |
304 | .display_get = "\\INFB"}, | |
1da177e4 LT |
305 | |
306 | { | |
4be44fcd LB |
307 | .name = "M6N", |
308 | .mt_mled = "MLED", | |
309 | .mt_wled = "WLED", | |
310 | .wled_status = "\\_SB.PCI0.SBRG.SG13", | |
311 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
312 | .lcd_status = "\\_SB.BKLT", | |
313 | .brightness_set = "SPLV", | |
314 | .brightness_get = "GPLV", | |
315 | .display_set = "SDSP", | |
9becf5b9 KK |
316 | .display_get = "\\SSTE"}, |
317 | ||
1da177e4 | 318 | { |
4be44fcd LB |
319 | .name = "M6R", |
320 | .mt_mled = "MLED", | |
321 | .mt_wled = "WLED", | |
322 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
323 | .lcd_status = "\\_SB.PCI0.SBSM.SEO4", | |
324 | .brightness_set = "SPLV", | |
325 | .brightness_get = "GPLV", | |
326 | .display_set = "SDSP", | |
9becf5b9 | 327 | .display_get = "\\_SB.PCI0.P0P1.VGA.GETD"}, |
1da177e4 LT |
328 | |
329 | { | |
4be44fcd LB |
330 | .name = "P30", |
331 | .mt_wled = "WLED", | |
332 | .mt_lcd_switch = P30_PREFIX "_Q0E", | |
333 | .lcd_status = "\\BKLT", | |
334 | .brightness_up = P30_PREFIX "_Q68", | |
335 | .brightness_down = P30_PREFIX "_Q69", | |
336 | .brightness_get = "GPLV", | |
337 | .display_set = "SDSP", | |
338 | .display_get = "\\DNXT"}, | |
1da177e4 LT |
339 | |
340 | { | |
4be44fcd LB |
341 | .name = "S1x", |
342 | .mt_mled = "MLED", | |
343 | .mled_status = "\\EMLE", | |
344 | .mt_wled = "WLED", | |
345 | .mt_lcd_switch = S1x_PREFIX "Q10", | |
346 | .lcd_status = "\\PNOF", | |
347 | .brightness_set = "SPLV", | |
348 | .brightness_get = "GPLV"}, | |
1da177e4 LT |
349 | |
350 | { | |
4be44fcd LB |
351 | .name = "S2x", |
352 | .mt_mled = "MLED", | |
353 | .mled_status = "\\MAIL", | |
354 | .mt_lcd_switch = S2x_PREFIX "_Q10", | |
355 | .lcd_status = "\\BKLI", | |
356 | .brightness_up = S2x_PREFIX "_Q0B", | |
357 | .brightness_down = S2x_PREFIX "_Q0A"}, | |
1da177e4 | 358 | |
42cb8912 KK |
359 | { |
360 | .name = "W1N", | |
361 | .mt_mled = "MLED", | |
362 | .mt_wled = "WLED", | |
363 | .mt_ledd = "SLCM", | |
364 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
365 | .lcd_status = "\\BKLT", | |
366 | .brightness_set = "SPLV", | |
367 | .brightness_get = "GPLV", | |
368 | .display_set = "SDSP", | |
369 | .display_get = "\\ADVG"}, | |
370 | ||
e067aaa7 KK |
371 | { |
372 | .name = "W5A", | |
373 | .mt_bt_switch = "BLED", | |
374 | .mt_wled = "WLED", | |
375 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
376 | .brightness_set = "SPLV", | |
377 | .brightness_get = "GPLV", | |
378 | .display_set = "SDSP", | |
379 | .display_get = "\\ADVG"}, | |
380 | ||
1da177e4 | 381 | { |
288f3ad4 M |
382 | .name = "W3V", |
383 | .mt_mled = "MLED", | |
384 | .mt_wled = "WLED", | |
385 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
386 | .lcd_status = "\\BKLT", | |
387 | .brightness_set = "SPLV", | |
388 | .brightness_get = "GPLV", | |
389 | .display_set = "SDSP", | |
390 | .display_get = "\\INFB"}, | |
391 | ||
392 | { | |
4be44fcd LB |
393 | .name = "xxN", |
394 | .mt_mled = "MLED", | |
1da177e4 | 395 | /* WLED present, but not controlled by ACPI */ |
4be44fcd LB |
396 | .mt_lcd_switch = xxN_PREFIX "_Q10", |
397 | .lcd_status = "\\BKLT", | |
398 | .brightness_set = "SPLV", | |
399 | .brightness_get = "GPLV", | |
400 | .display_set = "SDSP", | |
1c0f0575 MC |
401 | .display_get = "\\ADVG"}, |
402 | ||
403 | { | |
404 | .name = "A4S", | |
405 | .brightness_set = "SPLV", | |
406 | .brightness_get = "GPLV", | |
407 | .mt_bt_switch = "BLED", | |
408 | .mt_wled = "WLED" | |
31e0729a LT |
409 | }, |
410 | ||
411 | { | |
412 | .name = "F3Sa", | |
413 | .mt_bt_switch = "BLED", | |
414 | .mt_wled = "WLED", | |
415 | .mt_mled = "MLED", | |
416 | .brightness_get = "GPLV", | |
417 | .brightness_set = "SPLV", | |
418 | .mt_lcd_switch = "\\_SB.PCI0.SBRG.EC0._Q10", | |
419 | .lcd_status = "\\_SB.PCI0.SBRG.EC0.RPIN", | |
420 | .display_get = "\\ADVG", | |
421 | .display_set = "SDSP", | |
422 | }, | |
1c0f0575 | 423 | |
1da177e4 LT |
424 | }; |
425 | ||
426 | /* procdir we use */ | |
427 | static struct proc_dir_entry *asus_proc_dir; | |
428 | ||
2039a6eb HM |
429 | static struct backlight_device *asus_backlight_device; |
430 | ||
1da177e4 LT |
431 | /* |
432 | * This header is made available to allow proper configuration given model, | |
433 | * revision number , ... this info cannot go in struct asus_hotk because it is | |
434 | * available before the hotk | |
435 | */ | |
436 | static struct acpi_table_header *asus_info; | |
437 | ||
438 | /* The actual device the driver binds to */ | |
439 | static struct asus_hotk *hotk; | |
440 | ||
441 | /* | |
1ba90e3a | 442 | * The hotkey driver and autoloading declaration |
1da177e4 LT |
443 | */ |
444 | static int asus_hotk_add(struct acpi_device *device); | |
445 | static int asus_hotk_remove(struct acpi_device *device, int type); | |
1ba90e3a TR |
446 | static const struct acpi_device_id asus_device_ids[] = { |
447 | {"ATK0100", 0}, | |
448 | {"", 0}, | |
449 | }; | |
450 | MODULE_DEVICE_TABLE(acpi, asus_device_ids); | |
451 | ||
1da177e4 | 452 | static struct acpi_driver asus_hotk_driver = { |
c2b6705b | 453 | .name = "asus_acpi", |
4be44fcd | 454 | .class = ACPI_HOTK_CLASS, |
1ba90e3a | 455 | .ids = asus_device_ids, |
4be44fcd LB |
456 | .ops = { |
457 | .add = asus_hotk_add, | |
458 | .remove = asus_hotk_remove, | |
459 | }, | |
1da177e4 LT |
460 | }; |
461 | ||
462 | /* | |
463 | * This function evaluates an ACPI method, given an int as parameter, the | |
464 | * method is searched within the scope of the handle, can be NULL. The output | |
465 | * of the method is written is output, which can also be NULL | |
466 | * | |
467 | * returns 1 if write is successful, 0 else. | |
468 | */ | |
469 | static int write_acpi_int(acpi_handle handle, const char *method, int val, | |
470 | struct acpi_buffer *output) | |
471 | { | |
472 | struct acpi_object_list params; //list of input parameters (an int here) | |
473 | union acpi_object in_obj; //the only param we use | |
474 | acpi_status status; | |
475 | ||
476 | params.count = 1; | |
477 | params.pointer = &in_obj; | |
478 | in_obj.type = ACPI_TYPE_INTEGER; | |
479 | in_obj.integer.value = val; | |
480 | ||
4be44fcd | 481 | status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); |
1da177e4 LT |
482 | return (status == AE_OK); |
483 | } | |
484 | ||
1da177e4 LT |
485 | static int read_acpi_int(acpi_handle handle, const char *method, int *val) |
486 | { | |
487 | struct acpi_buffer output; | |
488 | union acpi_object out_obj; | |
489 | acpi_status status; | |
490 | ||
491 | output.length = sizeof(out_obj); | |
492 | output.pointer = &out_obj; | |
493 | ||
4be44fcd | 494 | status = acpi_evaluate_object(handle, (char *)method, NULL, &output); |
1da177e4 LT |
495 | *val = out_obj.integer.value; |
496 | return (status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER); | |
497 | } | |
498 | ||
499 | /* | |
500 | * We write our info in page, we begin at offset off and cannot write more | |
501 | * than count bytes. We set eof to 1 if we handle those 2 values. We return the | |
502 | * number of bytes written in page | |
503 | */ | |
504 | static int | |
505 | proc_read_info(char *page, char **start, off_t off, int count, int *eof, | |
4be44fcd | 506 | void *data) |
1da177e4 LT |
507 | { |
508 | int len = 0; | |
509 | int temp; | |
510 | char buf[16]; //enough for all info | |
511 | /* | |
512 | * We use the easy way, we don't care of off and count, so we don't set eof | |
513 | * to 1 | |
514 | */ | |
515 | ||
516 | len += sprintf(page, ACPI_HOTK_NAME " " ASUS_ACPI_VERSION "\n"); | |
4be44fcd | 517 | len += sprintf(page + len, "Model reference : %s\n", |
1da177e4 LT |
518 | hotk->methods->name); |
519 | /* | |
520 | * The SFUN method probably allows the original driver to get the list | |
521 | * of features supported by a given model. For now, 0x0100 or 0x0800 | |
522 | * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. | |
523 | * The significance of others is yet to be found. | |
524 | */ | |
525 | if (read_acpi_int(hotk->handle, "SFUN", &temp)) | |
4be44fcd LB |
526 | len += |
527 | sprintf(page + len, "SFUN value : 0x%04x\n", temp); | |
1da177e4 LT |
528 | /* |
529 | * Another value for userspace: the ASYM method returns 0x02 for | |
530 | * battery low and 0x04 for battery critical, its readings tend to be | |
531 | * more accurate than those provided by _BST. | |
532 | * Note: since not all the laptops provide this method, errors are | |
533 | * silently ignored. | |
534 | */ | |
535 | if (read_acpi_int(hotk->handle, "ASYM", &temp)) | |
4be44fcd LB |
536 | len += |
537 | sprintf(page + len, "ASYM value : 0x%04x\n", temp); | |
1da177e4 LT |
538 | if (asus_info) { |
539 | snprintf(buf, 16, "%d", asus_info->length); | |
540 | len += sprintf(page + len, "DSDT length : %s\n", buf); | |
541 | snprintf(buf, 16, "%d", asus_info->checksum); | |
542 | len += sprintf(page + len, "DSDT checksum : %s\n", buf); | |
543 | snprintf(buf, 16, "%d", asus_info->revision); | |
544 | len += sprintf(page + len, "DSDT revision : %s\n", buf); | |
545 | snprintf(buf, 7, "%s", asus_info->oem_id); | |
546 | len += sprintf(page + len, "OEM id : %s\n", buf); | |
547 | snprintf(buf, 9, "%s", asus_info->oem_table_id); | |
548 | len += sprintf(page + len, "OEM table id : %s\n", buf); | |
549 | snprintf(buf, 16, "%x", asus_info->oem_revision); | |
550 | len += sprintf(page + len, "OEM revision : 0x%s\n", buf); | |
551 | snprintf(buf, 5, "%s", asus_info->asl_compiler_id); | |
552 | len += sprintf(page + len, "ASL comp vendor id : %s\n", buf); | |
553 | snprintf(buf, 16, "%x", asus_info->asl_compiler_revision); | |
554 | len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf); | |
555 | } | |
556 | ||
557 | return len; | |
558 | } | |
559 | ||
1da177e4 LT |
560 | /* |
561 | * /proc handlers | |
562 | * We write our info in page, we begin at offset off and cannot write more | |
563 | * than count bytes. We set eof to 1 if we handle those 2 values. We return the | |
564 | * number of bytes written in page | |
565 | */ | |
566 | ||
567 | /* Generic LED functions */ | |
4be44fcd | 568 | static int read_led(const char *ledname, int ledmask) |
1da177e4 LT |
569 | { |
570 | if (ledname) { | |
571 | int led_status; | |
572 | ||
573 | if (read_acpi_int(NULL, ledname, &led_status)) | |
574 | return led_status; | |
575 | else | |
576 | printk(KERN_WARNING "Asus ACPI: Error reading LED " | |
577 | "status\n"); | |
578 | } | |
579 | return (hotk->status & ledmask) ? 1 : 0; | |
580 | } | |
581 | ||
4be44fcd | 582 | static int parse_arg(const char __user * buf, unsigned long count, int *val) |
1da177e4 LT |
583 | { |
584 | char s[32]; | |
585 | if (!count) | |
586 | return 0; | |
587 | if (count > 31) | |
588 | return -EINVAL; | |
589 | if (copy_from_user(s, buf, count)) | |
590 | return -EFAULT; | |
591 | s[count] = 0; | |
592 | if (sscanf(s, "%i", val) != 1) | |
593 | return -EINVAL; | |
594 | return count; | |
595 | } | |
596 | ||
597 | /* FIXME: kill extraneous args so it can be called independently */ | |
598 | static int | |
4be44fcd LB |
599 | write_led(const char __user * buffer, unsigned long count, |
600 | char *ledname, int ledmask, int invert) | |
1da177e4 | 601 | { |
6311f0da | 602 | int rv, value; |
1da177e4 LT |
603 | int led_out = 0; |
604 | ||
6311f0da DJ |
605 | rv = parse_arg(buffer, count, &value); |
606 | if (rv > 0) | |
1da177e4 LT |
607 | led_out = value ? 1 : 0; |
608 | ||
609 | hotk->status = | |
610 | (led_out) ? (hotk->status | ledmask) : (hotk->status & ~ledmask); | |
611 | ||
4be44fcd | 612 | if (invert) /* invert target value */ |
abc5a87f | 613 | led_out = !led_out; |
1da177e4 LT |
614 | |
615 | if (!write_acpi_int(hotk->handle, ledname, led_out, NULL)) | |
4be44fcd LB |
616 | printk(KERN_WARNING "Asus ACPI: LED (%s) write failed\n", |
617 | ledname); | |
1da177e4 | 618 | |
6311f0da | 619 | return rv; |
1da177e4 LT |
620 | } |
621 | ||
1da177e4 LT |
622 | /* |
623 | * Proc handlers for MLED | |
624 | */ | |
625 | static int | |
626 | proc_read_mled(char *page, char **start, off_t off, int count, int *eof, | |
627 | void *data) | |
628 | { | |
4be44fcd LB |
629 | return sprintf(page, "%d\n", |
630 | read_led(hotk->methods->mled_status, MLED_ON)); | |
1da177e4 LT |
631 | } |
632 | ||
1da177e4 | 633 | static int |
4be44fcd | 634 | proc_write_mled(struct file *file, const char __user * buffer, |
1da177e4 LT |
635 | unsigned long count, void *data) |
636 | { | |
637 | return write_led(buffer, count, hotk->methods->mt_mled, MLED_ON, 1); | |
638 | } | |
639 | ||
42cb8912 KK |
640 | /* |
641 | * Proc handlers for LED display | |
642 | */ | |
643 | static int | |
644 | proc_read_ledd(char *page, char **start, off_t off, int count, int *eof, | |
645 | void *data) | |
646 | { | |
647 | return sprintf(page, "0x%08x\n", hotk->ledd_status); | |
648 | } | |
649 | ||
650 | static int | |
651 | proc_write_ledd(struct file *file, const char __user * buffer, | |
652 | unsigned long count, void *data) | |
653 | { | |
6311f0da | 654 | int rv, value; |
42cb8912 | 655 | |
6311f0da DJ |
656 | rv = parse_arg(buffer, count, &value); |
657 | if (rv > 0) { | |
42cb8912 KK |
658 | if (!write_acpi_int |
659 | (hotk->handle, hotk->methods->mt_ledd, value, NULL)) | |
660 | printk(KERN_WARNING | |
661 | "Asus ACPI: LED display write failed\n"); | |
662 | else | |
663 | hotk->ledd_status = (u32) value; | |
6df05702 | 664 | } |
6311f0da | 665 | return rv; |
42cb8912 KK |
666 | } |
667 | ||
1da177e4 LT |
668 | /* |
669 | * Proc handlers for WLED | |
670 | */ | |
671 | static int | |
672 | proc_read_wled(char *page, char **start, off_t off, int count, int *eof, | |
673 | void *data) | |
674 | { | |
4be44fcd LB |
675 | return sprintf(page, "%d\n", |
676 | read_led(hotk->methods->wled_status, WLED_ON)); | |
1da177e4 LT |
677 | } |
678 | ||
679 | static int | |
4be44fcd | 680 | proc_write_wled(struct file *file, const char __user * buffer, |
1da177e4 LT |
681 | unsigned long count, void *data) |
682 | { | |
683 | return write_led(buffer, count, hotk->methods->mt_wled, WLED_ON, 0); | |
684 | } | |
685 | ||
e067aaa7 KK |
686 | /* |
687 | * Proc handlers for Bluetooth | |
688 | */ | |
689 | static int | |
690 | proc_read_bluetooth(char *page, char **start, off_t off, int count, int *eof, | |
691 | void *data) | |
692 | { | |
693 | return sprintf(page, "%d\n", read_led(hotk->methods->bt_status, BT_ON)); | |
694 | } | |
695 | ||
696 | static int | |
697 | proc_write_bluetooth(struct file *file, const char __user * buffer, | |
698 | unsigned long count, void *data) | |
699 | { | |
700 | /* Note: mt_bt_switch controls both internal Bluetooth adapter's | |
701 | presence and its LED */ | |
702 | return write_led(buffer, count, hotk->methods->mt_bt_switch, BT_ON, 0); | |
703 | } | |
704 | ||
1da177e4 LT |
705 | /* |
706 | * Proc handlers for TLED | |
707 | */ | |
708 | static int | |
709 | proc_read_tled(char *page, char **start, off_t off, int count, int *eof, | |
710 | void *data) | |
711 | { | |
4be44fcd LB |
712 | return sprintf(page, "%d\n", |
713 | read_led(hotk->methods->tled_status, TLED_ON)); | |
1da177e4 LT |
714 | } |
715 | ||
716 | static int | |
4be44fcd | 717 | proc_write_tled(struct file *file, const char __user * buffer, |
1da177e4 LT |
718 | unsigned long count, void *data) |
719 | { | |
720 | return write_led(buffer, count, hotk->methods->mt_tled, TLED_ON, 0); | |
721 | } | |
722 | ||
1da177e4 LT |
723 | static int get_lcd_state(void) |
724 | { | |
725 | int lcd = 0; | |
726 | ||
31e0729a LT |
727 | if (hotk->model == L3H) { |
728 | /* L3H and the like have to be handled differently */ | |
1da177e4 LT |
729 | acpi_status status = 0; |
730 | struct acpi_object_list input; | |
731 | union acpi_object mt_params[2]; | |
732 | struct acpi_buffer output; | |
733 | union acpi_object out_obj; | |
4be44fcd | 734 | |
1da177e4 LT |
735 | input.count = 2; |
736 | input.pointer = mt_params; | |
737 | /* Note: the following values are partly guessed up, but | |
738 | otherwise they seem to work */ | |
739 | mt_params[0].type = ACPI_TYPE_INTEGER; | |
740 | mt_params[0].integer.value = 0x02; | |
741 | mt_params[1].type = ACPI_TYPE_INTEGER; | |
742 | mt_params[1].integer.value = 0x02; | |
743 | ||
744 | output.length = sizeof(out_obj); | |
745 | output.pointer = &out_obj; | |
4be44fcd LB |
746 | |
747 | status = | |
748 | acpi_evaluate_object(NULL, hotk->methods->lcd_status, | |
749 | &input, &output); | |
1da177e4 LT |
750 | if (status != AE_OK) |
751 | return -1; | |
752 | if (out_obj.type == ACPI_TYPE_INTEGER) | |
753 | /* That's what the AML code does */ | |
754 | lcd = out_obj.integer.value >> 8; | |
31e0729a LT |
755 | } else if (hotk->model == F3Sa) { |
756 | unsigned long tmp; | |
757 | union acpi_object param; | |
758 | struct acpi_object_list input; | |
759 | acpi_status status; | |
760 | ||
761 | /* Read pin 11 */ | |
762 | param.type = ACPI_TYPE_INTEGER; | |
763 | param.integer.value = 0x11; | |
764 | input.count = 1; | |
765 | input.pointer = ¶m; | |
766 | ||
767 | status = acpi_evaluate_integer(NULL, hotk->methods->lcd_status, | |
768 | &input, &tmp); | |
769 | if (status != AE_OK) | |
770 | return -1; | |
771 | ||
772 | lcd = tmp; | |
773 | } else { | |
774 | /* We don't have to check anything if we are here */ | |
775 | if (!read_acpi_int(NULL, hotk->methods->lcd_status, &lcd)) | |
776 | printk(KERN_WARNING | |
777 | "Asus ACPI: Error reading LCD status\n"); | |
778 | ||
779 | if (hotk->model == L2D) | |
780 | lcd = ~lcd; | |
1da177e4 | 781 | } |
4be44fcd | 782 | |
1da177e4 LT |
783 | return (lcd & 1); |
784 | } | |
785 | ||
786 | static int set_lcd_state(int value) | |
787 | { | |
788 | int lcd = 0; | |
789 | acpi_status status = 0; | |
790 | ||
791 | lcd = value ? 1 : 0; | |
792 | if (lcd != get_lcd_state()) { | |
793 | /* switch */ | |
794 | if (hotk->model != L3H) { | |
795 | status = | |
4be44fcd LB |
796 | acpi_evaluate_object(NULL, |
797 | hotk->methods->mt_lcd_switch, | |
1da177e4 | 798 | NULL, NULL); |
4be44fcd LB |
799 | } else { /* L3H and the like have to be handled differently */ |
800 | if (!write_acpi_int | |
801 | (hotk->handle, hotk->methods->mt_lcd_switch, 0x07, | |
802 | NULL)) | |
1da177e4 LT |
803 | status = AE_ERROR; |
804 | /* L3H's AML executes EHK (0x07) upon Fn+F7 keypress, | |
805 | the exact behaviour is simulated here */ | |
806 | } | |
807 | if (ACPI_FAILURE(status)) | |
808 | printk(KERN_WARNING "Asus ACPI: Error switching LCD\n"); | |
809 | } | |
810 | return 0; | |
811 | ||
812 | } | |
813 | ||
814 | static int | |
815 | proc_read_lcd(char *page, char **start, off_t off, int count, int *eof, | |
816 | void *data) | |
817 | { | |
818 | return sprintf(page, "%d\n", get_lcd_state()); | |
819 | } | |
820 | ||
1da177e4 | 821 | static int |
4be44fcd | 822 | proc_write_lcd(struct file *file, const char __user * buffer, |
1da177e4 LT |
823 | unsigned long count, void *data) |
824 | { | |
6311f0da | 825 | int rv, value; |
4be44fcd | 826 | |
6311f0da DJ |
827 | rv = parse_arg(buffer, count, &value); |
828 | if (rv > 0) | |
1da177e4 | 829 | set_lcd_state(value); |
6311f0da | 830 | return rv; |
1da177e4 LT |
831 | } |
832 | ||
2039a6eb | 833 | static int read_brightness(struct backlight_device *bd) |
1da177e4 LT |
834 | { |
835 | int value; | |
4be44fcd LB |
836 | |
837 | if (hotk->methods->brightness_get) { /* SPLV/GPLV laptop */ | |
838 | if (!read_acpi_int(hotk->handle, hotk->methods->brightness_get, | |
1da177e4 | 839 | &value)) |
4be44fcd LB |
840 | printk(KERN_WARNING |
841 | "Asus ACPI: Error reading brightness\n"); | |
842 | } else if (hotk->methods->brightness_status) { /* For D1 for example */ | |
843 | if (!read_acpi_int(NULL, hotk->methods->brightness_status, | |
1da177e4 | 844 | &value)) |
4be44fcd LB |
845 | printk(KERN_WARNING |
846 | "Asus ACPI: Error reading brightness\n"); | |
847 | } else /* No GPLV method */ | |
1da177e4 LT |
848 | value = hotk->brightness; |
849 | return value; | |
850 | } | |
851 | ||
852 | /* | |
853 | * Change the brightness level | |
854 | */ | |
2039a6eb | 855 | static int set_brightness(int value) |
1da177e4 LT |
856 | { |
857 | acpi_status status = 0; | |
2039a6eb | 858 | int ret = 0; |
1da177e4 LT |
859 | |
860 | /* SPLV laptop */ | |
4be44fcd LB |
861 | if (hotk->methods->brightness_set) { |
862 | if (!write_acpi_int(hotk->handle, hotk->methods->brightness_set, | |
1da177e4 | 863 | value, NULL)) |
4be44fcd LB |
864 | printk(KERN_WARNING |
865 | "Asus ACPI: Error changing brightness\n"); | |
2039a6eb HM |
866 | ret = -EIO; |
867 | goto out; | |
1da177e4 LT |
868 | } |
869 | ||
870 | /* No SPLV method if we are here, act as appropriate */ | |
2039a6eb | 871 | value -= read_brightness(NULL); |
1da177e4 | 872 | while (value != 0) { |
4be44fcd LB |
873 | status = acpi_evaluate_object(NULL, (value > 0) ? |
874 | hotk->methods->brightness_up : | |
1da177e4 LT |
875 | hotk->methods->brightness_down, |
876 | NULL, NULL); | |
877 | (value > 0) ? value-- : value++; | |
878 | if (ACPI_FAILURE(status)) | |
4be44fcd LB |
879 | printk(KERN_WARNING |
880 | "Asus ACPI: Error changing brightness\n"); | |
2039a6eb | 881 | ret = -EIO; |
1da177e4 | 882 | } |
2039a6eb HM |
883 | out: |
884 | return ret; | |
885 | } | |
886 | ||
887 | static int set_brightness_status(struct backlight_device *bd) | |
888 | { | |
599a52d1 | 889 | return set_brightness(bd->props.brightness); |
1da177e4 LT |
890 | } |
891 | ||
892 | static int | |
893 | proc_read_brn(char *page, char **start, off_t off, int count, int *eof, | |
894 | void *data) | |
895 | { | |
2039a6eb | 896 | return sprintf(page, "%d\n", read_brightness(NULL)); |
1da177e4 LT |
897 | } |
898 | ||
899 | static int | |
4be44fcd | 900 | proc_write_brn(struct file *file, const char __user * buffer, |
1da177e4 LT |
901 | unsigned long count, void *data) |
902 | { | |
6311f0da | 903 | int rv, value; |
1da177e4 | 904 | |
6311f0da DJ |
905 | rv = parse_arg(buffer, count, &value); |
906 | if (rv > 0) { | |
1da177e4 | 907 | value = (0 < value) ? ((15 < value) ? 15 : value) : 0; |
4be44fcd | 908 | /* 0 <= value <= 15 */ |
1da177e4 | 909 | set_brightness(value); |
1da177e4 | 910 | } |
6311f0da | 911 | return rv; |
1da177e4 LT |
912 | } |
913 | ||
914 | static void set_display(int value) | |
915 | { | |
916 | /* no sanity check needed for now */ | |
4be44fcd | 917 | if (!write_acpi_int(hotk->handle, hotk->methods->display_set, |
1da177e4 LT |
918 | value, NULL)) |
919 | printk(KERN_WARNING "Asus ACPI: Error setting display\n"); | |
920 | return; | |
921 | } | |
922 | ||
923 | /* | |
924 | * Now, *this* one could be more user-friendly, but so far, no-one has | |
925 | * complained. The significance of bits is the same as in proc_write_disp() | |
926 | */ | |
927 | static int | |
928 | proc_read_disp(char *page, char **start, off_t off, int count, int *eof, | |
4be44fcd | 929 | void *data) |
1da177e4 LT |
930 | { |
931 | int value = 0; | |
4be44fcd | 932 | |
1da177e4 | 933 | if (!read_acpi_int(hotk->handle, hotk->methods->display_get, &value)) |
4be44fcd LB |
934 | printk(KERN_WARNING |
935 | "Asus ACPI: Error reading display status\n"); | |
936 | value &= 0x07; /* needed for some models, shouldn't hurt others */ | |
1da177e4 LT |
937 | return sprintf(page, "%d\n", value); |
938 | } | |
939 | ||
940 | /* | |
941 | * Experimental support for display switching. As of now: 1 should activate | |
942 | * the LCD output, 2 should do for CRT, and 4 for TV-Out. Any combination | |
943 | * (bitwise) of these will suffice. I never actually tested 3 displays hooked up | |
944 | * simultaneously, so be warned. See the acpi4asus README for more info. | |
945 | */ | |
946 | static int | |
4be44fcd LB |
947 | proc_write_disp(struct file *file, const char __user * buffer, |
948 | unsigned long count, void *data) | |
1da177e4 | 949 | { |
6311f0da | 950 | int rv, value; |
1da177e4 | 951 | |
6311f0da DJ |
952 | rv = parse_arg(buffer, count, &value); |
953 | if (rv > 0) | |
1da177e4 | 954 | set_display(value); |
6311f0da | 955 | return rv; |
1da177e4 LT |
956 | } |
957 | ||
4be44fcd LB |
958 | typedef int (proc_readfunc) (char *page, char **start, off_t off, int count, |
959 | int *eof, void *data); | |
960 | typedef int (proc_writefunc) (struct file * file, const char __user * buffer, | |
961 | unsigned long count, void *data); | |
1da177e4 LT |
962 | |
963 | static int | |
200739c1 | 964 | asus_proc_add(char *name, proc_writefunc * writefunc, |
4be44fcd LB |
965 | proc_readfunc * readfunc, mode_t mode, |
966 | struct acpi_device *device) | |
1da177e4 | 967 | { |
4be44fcd LB |
968 | struct proc_dir_entry *proc = |
969 | create_proc_entry(name, mode, acpi_device_dir(device)); | |
970 | if (!proc) { | |
1da177e4 LT |
971 | printk(KERN_WARNING " Unable to create %s fs entry\n", name); |
972 | return -1; | |
973 | } | |
974 | proc->write_proc = writefunc; | |
975 | proc->read_proc = readfunc; | |
976 | proc->data = acpi_driver_data(device); | |
977 | proc->owner = THIS_MODULE; | |
978 | proc->uid = asus_uid; | |
979 | proc->gid = asus_gid; | |
980 | return 0; | |
981 | } | |
982 | ||
200739c1 | 983 | static int asus_hotk_add_fs(struct acpi_device *device) |
1da177e4 LT |
984 | { |
985 | struct proc_dir_entry *proc; | |
986 | mode_t mode; | |
4be44fcd | 987 | |
1da177e4 LT |
988 | /* |
989 | * If parameter uid or gid is not changed, keep the default setting for | |
990 | * our proc entries (-rw-rw-rw-) else, it means we care about security, | |
991 | * and then set to -rw-rw---- | |
992 | */ | |
993 | ||
4be44fcd | 994 | if ((asus_uid == 0) && (asus_gid == 0)) { |
1da177e4 LT |
995 | mode = S_IFREG | S_IRUGO | S_IWUGO; |
996 | } else { | |
997 | mode = S_IFREG | S_IRUSR | S_IRGRP | S_IWUSR | S_IWGRP; | |
aea19aa0 KK |
998 | printk(KERN_WARNING " asus_uid and asus_gid parameters are " |
999 | "deprecated, use chown and chmod instead!\n"); | |
1da177e4 LT |
1000 | } |
1001 | ||
1002 | acpi_device_dir(device) = asus_proc_dir; | |
1003 | if (!acpi_device_dir(device)) | |
1004 | return -ENODEV; | |
1005 | ||
1006 | proc = create_proc_entry(PROC_INFO, mode, acpi_device_dir(device)); | |
1007 | if (proc) { | |
1008 | proc->read_proc = proc_read_info; | |
1009 | proc->data = acpi_driver_data(device); | |
1010 | proc->owner = THIS_MODULE; | |
1011 | proc->uid = asus_uid; | |
1012 | proc->gid = asus_gid; | |
1013 | } else { | |
1014 | printk(KERN_WARNING " Unable to create " PROC_INFO | |
1015 | " fs entry\n"); | |
1016 | } | |
1017 | ||
1018 | if (hotk->methods->mt_wled) { | |
4be44fcd LB |
1019 | asus_proc_add(PROC_WLED, &proc_write_wled, &proc_read_wled, |
1020 | mode, device); | |
1da177e4 LT |
1021 | } |
1022 | ||
42cb8912 KK |
1023 | if (hotk->methods->mt_ledd) { |
1024 | asus_proc_add(PROC_LEDD, &proc_write_ledd, &proc_read_ledd, | |
1025 | mode, device); | |
1026 | } | |
1027 | ||
1da177e4 | 1028 | if (hotk->methods->mt_mled) { |
4be44fcd LB |
1029 | asus_proc_add(PROC_MLED, &proc_write_mled, &proc_read_mled, |
1030 | mode, device); | |
1da177e4 LT |
1031 | } |
1032 | ||
1033 | if (hotk->methods->mt_tled) { | |
4be44fcd LB |
1034 | asus_proc_add(PROC_TLED, &proc_write_tled, &proc_read_tled, |
1035 | mode, device); | |
1da177e4 LT |
1036 | } |
1037 | ||
e067aaa7 KK |
1038 | if (hotk->methods->mt_bt_switch) { |
1039 | asus_proc_add(PROC_BT, &proc_write_bluetooth, | |
1040 | &proc_read_bluetooth, mode, device); | |
1041 | } | |
1042 | ||
1da177e4 LT |
1043 | /* |
1044 | * We need both read node and write method as LCD switch is also accessible | |
1045 | * from keyboard | |
1046 | */ | |
1047 | if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) { | |
4be44fcd LB |
1048 | asus_proc_add(PROC_LCD, &proc_write_lcd, &proc_read_lcd, mode, |
1049 | device); | |
1da177e4 | 1050 | } |
4be44fcd | 1051 | |
1da177e4 LT |
1052 | if ((hotk->methods->brightness_up && hotk->methods->brightness_down) || |
1053 | (hotk->methods->brightness_get && hotk->methods->brightness_set)) { | |
4be44fcd LB |
1054 | asus_proc_add(PROC_BRN, &proc_write_brn, &proc_read_brn, mode, |
1055 | device); | |
1da177e4 LT |
1056 | } |
1057 | ||
1058 | if (hotk->methods->display_set) { | |
4be44fcd LB |
1059 | asus_proc_add(PROC_DISP, &proc_write_disp, &proc_read_disp, |
1060 | mode, device); | |
1da177e4 LT |
1061 | } |
1062 | ||
1063 | return 0; | |
1064 | } | |
1065 | ||
4be44fcd | 1066 | static int asus_hotk_remove_fs(struct acpi_device *device) |
1da177e4 | 1067 | { |
4be44fcd LB |
1068 | if (acpi_device_dir(device)) { |
1069 | remove_proc_entry(PROC_INFO, acpi_device_dir(device)); | |
1da177e4 | 1070 | if (hotk->methods->mt_wled) |
4be44fcd | 1071 | remove_proc_entry(PROC_WLED, acpi_device_dir(device)); |
1da177e4 | 1072 | if (hotk->methods->mt_mled) |
4be44fcd | 1073 | remove_proc_entry(PROC_MLED, acpi_device_dir(device)); |
1da177e4 | 1074 | if (hotk->methods->mt_tled) |
4be44fcd | 1075 | remove_proc_entry(PROC_TLED, acpi_device_dir(device)); |
42cb8912 KK |
1076 | if (hotk->methods->mt_ledd) |
1077 | remove_proc_entry(PROC_LEDD, acpi_device_dir(device)); | |
e067aaa7 KK |
1078 | if (hotk->methods->mt_bt_switch) |
1079 | remove_proc_entry(PROC_BT, acpi_device_dir(device)); | |
1da177e4 LT |
1080 | if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) |
1081 | remove_proc_entry(PROC_LCD, acpi_device_dir(device)); | |
4be44fcd LB |
1082 | if ((hotk->methods->brightness_up |
1083 | && hotk->methods->brightness_down) | |
1084 | || (hotk->methods->brightness_get | |
1085 | && hotk->methods->brightness_set)) | |
1da177e4 LT |
1086 | remove_proc_entry(PROC_BRN, acpi_device_dir(device)); |
1087 | if (hotk->methods->display_set) | |
1088 | remove_proc_entry(PROC_DISP, acpi_device_dir(device)); | |
1089 | } | |
1090 | return 0; | |
1091 | } | |
1092 | ||
1da177e4 LT |
1093 | static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) |
1094 | { | |
4be44fcd | 1095 | /* TODO Find a better way to handle events count. */ |
1da177e4 LT |
1096 | if (!hotk) |
1097 | return; | |
1098 | ||
1099 | if ((event & ~((u32) BR_UP)) < 16) { | |
1100 | hotk->brightness = (event & ~((u32) BR_UP)); | |
4be44fcd | 1101 | } else if ((event & ~((u32) BR_DOWN)) < 16) { |
1da177e4 LT |
1102 | hotk->brightness = (event & ~((u32) BR_DOWN)); |
1103 | } | |
1104 | ||
14e04fb3 | 1105 | acpi_bus_generate_proc_event(hotk->device, event, |
1da177e4 LT |
1106 | hotk->event_count[event % 128]++); |
1107 | ||
1108 | return; | |
1109 | } | |
1110 | ||
ffab0d95 KK |
1111 | /* |
1112 | * Match the model string to the list of supported models. Return END_MODEL if | |
1113 | * no match or model is NULL. | |
1114 | */ | |
1115 | static int asus_model_match(char *model) | |
1116 | { | |
1117 | if (model == NULL) | |
1118 | return END_MODEL; | |
1119 | ||
1120 | if (strncmp(model, "L3D", 3) == 0) | |
1121 | return L3D; | |
1122 | else if (strncmp(model, "L2E", 3) == 0 || | |
1123 | strncmp(model, "L3H", 3) == 0 || strncmp(model, "L5D", 3) == 0) | |
1124 | return L3H; | |
1125 | else if (strncmp(model, "L3", 2) == 0 || strncmp(model, "L2B", 3) == 0) | |
1126 | return L3C; | |
1127 | else if (strncmp(model, "L8L", 3) == 0) | |
1128 | return L8L; | |
1129 | else if (strncmp(model, "L4R", 3) == 0) | |
1130 | return L4R; | |
1131 | else if (strncmp(model, "M6N", 3) == 0 || strncmp(model, "W3N", 3) == 0) | |
1132 | return M6N; | |
1133 | else if (strncmp(model, "M6R", 3) == 0 || strncmp(model, "A3G", 3) == 0) | |
1134 | return M6R; | |
1135 | else if (strncmp(model, "M2N", 3) == 0 || | |
1136 | strncmp(model, "M3N", 3) == 0 || | |
1137 | strncmp(model, "M5N", 3) == 0 || | |
1138 | strncmp(model, "M6N", 3) == 0 || | |
1139 | strncmp(model, "S1N", 3) == 0 || | |
1140 | strncmp(model, "S5N", 3) == 0 || strncmp(model, "W1N", 3) == 0) | |
1141 | return xxN; | |
1142 | else if (strncmp(model, "M1", 2) == 0) | |
1143 | return M1A; | |
1144 | else if (strncmp(model, "M2", 2) == 0 || strncmp(model, "L4E", 3) == 0) | |
1145 | return M2E; | |
1146 | else if (strncmp(model, "L2", 2) == 0) | |
1147 | return L2D; | |
1148 | else if (strncmp(model, "L8", 2) == 0) | |
1149 | return S1x; | |
1150 | else if (strncmp(model, "D1", 2) == 0) | |
1151 | return D1x; | |
1152 | else if (strncmp(model, "A1", 2) == 0) | |
1153 | return A1x; | |
1154 | else if (strncmp(model, "A2", 2) == 0) | |
1155 | return A2x; | |
1156 | else if (strncmp(model, "J1", 2) == 0) | |
1157 | return S2x; | |
1158 | else if (strncmp(model, "L5", 2) == 0) | |
1159 | return L5x; | |
1160 | else if (strncmp(model, "A4G", 3) == 0) | |
1161 | return A4G; | |
1162 | else if (strncmp(model, "W1N", 3) == 0) | |
1163 | return W1N; | |
288f3ad4 M |
1164 | else if (strncmp(model, "W3V", 3) == 0) |
1165 | return W3V; | |
ffab0d95 KK |
1166 | else if (strncmp(model, "W5A", 3) == 0) |
1167 | return W5A; | |
1c0f0575 MC |
1168 | else if (strncmp(model, "A4S", 3) == 0) |
1169 | return A4S; | |
31e0729a LT |
1170 | else if (strncmp(model, "F3Sa", 4) == 0) |
1171 | return F3Sa; | |
ffab0d95 KK |
1172 | else |
1173 | return END_MODEL; | |
1174 | } | |
1175 | ||
1da177e4 LT |
1176 | /* |
1177 | * This function is used to initialize the hotk with right values. In this | |
1178 | * method, we can make all the detection we want, and modify the hotk struct | |
1179 | */ | |
200739c1 | 1180 | static int asus_hotk_get_info(void) |
1da177e4 LT |
1181 | { |
1182 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
1da177e4 LT |
1183 | union acpi_object *model = NULL; |
1184 | int bsts_result; | |
ffab0d95 | 1185 | char *string = NULL; |
1da177e4 LT |
1186 | acpi_status status; |
1187 | ||
1188 | /* | |
1189 | * Get DSDT headers early enough to allow for differentiating between | |
1190 | * models, but late enough to allow acpi_bus_register_driver() to fail | |
1191 | * before doing anything ACPI-specific. Should we encounter a machine, | |
1192 | * which needs special handling (i.e. its hotkey device has a different | |
1193 | * HID), this bit will be moved. A global variable asus_info contains | |
1194 | * the DSDT header. | |
1195 | */ | |
ad71860a | 1196 | status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus_info); |
1da177e4 LT |
1197 | if (ACPI_FAILURE(status)) |
1198 | printk(KERN_WARNING " Couldn't get the DSDT table header\n"); | |
1da177e4 LT |
1199 | |
1200 | /* We have to write 0 on init this far for all ASUS models */ | |
1201 | if (!write_acpi_int(hotk->handle, "INIT", 0, &buffer)) { | |
1202 | printk(KERN_ERR " Hotkey initialization failed\n"); | |
1203 | return -ENODEV; | |
1204 | } | |
1205 | ||
1206 | /* This needs to be called for some laptops to init properly */ | |
1207 | if (!read_acpi_int(hotk->handle, "BSTS", &bsts_result)) | |
1208 | printk(KERN_WARNING " Error calling BSTS\n"); | |
1209 | else if (bsts_result) | |
4be44fcd LB |
1210 | printk(KERN_NOTICE " BSTS called, 0x%02x returned\n", |
1211 | bsts_result); | |
1da177e4 | 1212 | |
b697b537 | 1213 | /* |
ffab0d95 KK |
1214 | * Try to match the object returned by INIT to the specific model. |
1215 | * Handle every possible object (or the lack of thereof) the DSDT | |
1216 | * writers might throw at us. When in trouble, we pass NULL to | |
1217 | * asus_model_match() and try something completely different. | |
b697b537 | 1218 | */ |
ffab0d95 | 1219 | if (buffer.pointer) { |
50dd0969 | 1220 | model = buffer.pointer; |
ffab0d95 KK |
1221 | switch (model->type) { |
1222 | case ACPI_TYPE_STRING: | |
1223 | string = model->string.pointer; | |
1224 | break; | |
1225 | case ACPI_TYPE_BUFFER: | |
1226 | string = model->buffer.pointer; | |
1227 | break; | |
1228 | default: | |
1229 | kfree(model); | |
de47b69c | 1230 | model = NULL; |
ffab0d95 KK |
1231 | break; |
1232 | } | |
1233 | } | |
1234 | hotk->model = asus_model_match(string); | |
1235 | if (hotk->model == END_MODEL) { /* match failed */ | |
1236 | if (asus_info && | |
1da177e4 LT |
1237 | strncmp(asus_info->oem_table_id, "ODEM", 4) == 0) { |
1238 | hotk->model = P30; | |
4be44fcd LB |
1239 | printk(KERN_NOTICE |
1240 | " Samsung P30 detected, supported\n"); | |
1da177e4 LT |
1241 | } else { |
1242 | hotk->model = M2E; | |
ffab0d95 KK |
1243 | printk(KERN_NOTICE " unsupported model %s, trying " |
1244 | "default values\n", string); | |
1245 | printk(KERN_NOTICE | |
1246 | " send /proc/acpi/dsdt to the developers\n"); | |
1da177e4 LT |
1247 | } |
1248 | hotk->methods = &model_conf[hotk->model]; | |
b697b537 | 1249 | return AE_OK; |
1da177e4 | 1250 | } |
1da177e4 | 1251 | hotk->methods = &model_conf[hotk->model]; |
ffab0d95 | 1252 | printk(KERN_NOTICE " %s model detected, supported\n", string); |
1da177e4 LT |
1253 | |
1254 | /* Sort of per-model blacklist */ | |
ffab0d95 | 1255 | if (strncmp(string, "L2B", 3) == 0) |
4be44fcd | 1256 | hotk->methods->lcd_status = NULL; |
1da177e4 LT |
1257 | /* L2B is similar enough to L3C to use its settings, with this only |
1258 | exception */ | |
ffab0d95 | 1259 | else if (strncmp(string, "A3G", 3) == 0) |
ed2cb07b KK |
1260 | hotk->methods->lcd_status = "\\BLFG"; |
1261 | /* A3G is like M6R */ | |
ffab0d95 KK |
1262 | else if (strncmp(string, "S5N", 3) == 0 || |
1263 | strncmp(string, "M5N", 3) == 0 || | |
1264 | strncmp(string, "W3N", 3) == 0) | |
4be44fcd | 1265 | hotk->methods->mt_mled = NULL; |
c067a789 | 1266 | /* S5N, M5N and W3N have no MLED */ |
ffab0d95 | 1267 | else if (strncmp(string, "L5D", 3) == 0) |
ebccb848 KK |
1268 | hotk->methods->mt_wled = NULL; |
1269 | /* L5D's WLED is not controlled by ACPI */ | |
96d11420 | 1270 | else if (strncmp(string, "M2N", 3) == 0 || |
288f3ad4 | 1271 | strncmp(string, "W3V", 3) == 0 || |
96d11420 | 1272 | strncmp(string, "S1N", 3) == 0) |
4be44fcd | 1273 | hotk->methods->mt_wled = "WLED"; |
288f3ad4 | 1274 | /* M2N, S1N and W3V have a usable WLED */ |
1da177e4 LT |
1275 | else if (asus_info) { |
1276 | if (strncmp(asus_info->oem_table_id, "L1", 2) == 0) | |
1277 | hotk->methods->mled_status = NULL; | |
4be44fcd | 1278 | /* S1300A reports L84F, but L1400B too, account for that */ |
1da177e4 LT |
1279 | } |
1280 | ||
02438d87 | 1281 | kfree(model); |
1da177e4 LT |
1282 | |
1283 | return AE_OK; | |
1284 | } | |
1285 | ||
200739c1 | 1286 | static int asus_hotk_check(void) |
1da177e4 LT |
1287 | { |
1288 | int result = 0; | |
1289 | ||
1290 | result = acpi_bus_get_status(hotk->device); | |
1291 | if (result) | |
1292 | return result; | |
1293 | ||
1294 | if (hotk->device->status.present) { | |
1295 | result = asus_hotk_get_info(); | |
1296 | } else { | |
1297 | printk(KERN_ERR " Hotkey device not present, aborting\n"); | |
1298 | return -EINVAL; | |
1299 | } | |
1300 | ||
1301 | return result; | |
1302 | } | |
1303 | ||
578b333b BH |
1304 | static int asus_hotk_found; |
1305 | ||
200739c1 | 1306 | static int asus_hotk_add(struct acpi_device *device) |
1da177e4 LT |
1307 | { |
1308 | acpi_status status = AE_OK; | |
1309 | int result; | |
1310 | ||
1311 | if (!device) | |
1312 | return -EINVAL; | |
1313 | ||
1314 | printk(KERN_NOTICE "Asus Laptop ACPI Extras version %s\n", | |
1315 | ASUS_ACPI_VERSION); | |
1316 | ||
36bcbec7 | 1317 | hotk = kzalloc(sizeof(struct asus_hotk), GFP_KERNEL); |
1da177e4 LT |
1318 | if (!hotk) |
1319 | return -ENOMEM; | |
1da177e4 LT |
1320 | |
1321 | hotk->handle = device->handle; | |
1322 | strcpy(acpi_device_name(device), ACPI_HOTK_DEVICE_NAME); | |
1323 | strcpy(acpi_device_class(device), ACPI_HOTK_CLASS); | |
1324 | acpi_driver_data(device) = hotk; | |
1325 | hotk->device = device; | |
1326 | ||
1da177e4 LT |
1327 | result = asus_hotk_check(); |
1328 | if (result) | |
1329 | goto end; | |
1330 | ||
1331 | result = asus_hotk_add_fs(device); | |
1332 | if (result) | |
1333 | goto end; | |
1334 | ||
1335 | /* | |
1336 | * We install the handler, it will receive the hotk in parameter, so, we | |
1337 | * could add other data to the hotk struct | |
1338 | */ | |
1339 | status = acpi_install_notify_handler(hotk->handle, ACPI_SYSTEM_NOTIFY, | |
1340 | asus_hotk_notify, hotk); | |
1341 | if (ACPI_FAILURE(status)) | |
1342 | printk(KERN_ERR " Error installing notify handler\n"); | |
1343 | ||
1344 | /* For laptops without GPLV: init the hotk->brightness value */ | |
4be44fcd LB |
1345 | if ((!hotk->methods->brightness_get) |
1346 | && (!hotk->methods->brightness_status) | |
a170a531 | 1347 | && (hotk->methods->brightness_up && hotk->methods->brightness_down)) { |
4be44fcd LB |
1348 | status = |
1349 | acpi_evaluate_object(NULL, hotk->methods->brightness_down, | |
1350 | NULL, NULL); | |
1da177e4 LT |
1351 | if (ACPI_FAILURE(status)) |
1352 | printk(KERN_WARNING " Error changing brightness\n"); | |
1353 | else { | |
4be44fcd LB |
1354 | status = |
1355 | acpi_evaluate_object(NULL, | |
1356 | hotk->methods->brightness_up, | |
1357 | NULL, NULL); | |
1da177e4 | 1358 | if (ACPI_FAILURE(status)) |
4be44fcd | 1359 | printk(KERN_WARNING " Strange, error changing" |
1da177e4 LT |
1360 | " brightness\n"); |
1361 | } | |
1362 | } | |
1363 | ||
578b333b BH |
1364 | asus_hotk_found = 1; |
1365 | ||
42cb8912 KK |
1366 | /* LED display is off by default */ |
1367 | hotk->ledd_status = 0xFFF; | |
1368 | ||
1da177e4 LT |
1369 | end: |
1370 | if (result) { | |
1371 | kfree(hotk); | |
1372 | } | |
1373 | ||
1374 | return result; | |
1375 | } | |
1376 | ||
1da177e4 LT |
1377 | static int asus_hotk_remove(struct acpi_device *device, int type) |
1378 | { | |
1379 | acpi_status status = 0; | |
1380 | ||
1381 | if (!device || !acpi_driver_data(device)) | |
1382 | return -EINVAL; | |
1383 | ||
1384 | status = acpi_remove_notify_handler(hotk->handle, ACPI_SYSTEM_NOTIFY, | |
1385 | asus_hotk_notify); | |
1386 | if (ACPI_FAILURE(status)) | |
1387 | printk(KERN_ERR "Asus ACPI: Error removing notify handler\n"); | |
1388 | ||
1389 | asus_hotk_remove_fs(device); | |
1390 | ||
1391 | kfree(hotk); | |
1392 | ||
1393 | return 0; | |
1394 | } | |
1395 | ||
599a52d1 | 1396 | static struct backlight_ops asus_backlight_data = { |
2039a6eb HM |
1397 | .get_brightness = read_brightness, |
1398 | .update_status = set_brightness_status, | |
2039a6eb HM |
1399 | }; |
1400 | ||
b2b77b23 | 1401 | static void asus_acpi_exit(void) |
2039a6eb HM |
1402 | { |
1403 | if (asus_backlight_device) | |
1404 | backlight_device_unregister(asus_backlight_device); | |
1405 | ||
1406 | acpi_bus_unregister_driver(&asus_hotk_driver); | |
1407 | remove_proc_entry(PROC_ASUS, acpi_root_dir); | |
1408 | ||
2039a6eb HM |
1409 | return; |
1410 | } | |
1411 | ||
1da177e4 LT |
1412 | static int __init asus_acpi_init(void) |
1413 | { | |
1414 | int result; | |
1415 | ||
1416 | if (acpi_disabled) | |
1417 | return -ENODEV; | |
1418 | ||
1419 | asus_proc_dir = proc_mkdir(PROC_ASUS, acpi_root_dir); | |
1420 | if (!asus_proc_dir) { | |
1421 | printk(KERN_ERR "Asus ACPI: Unable to create /proc entry\n"); | |
1422 | return -ENODEV; | |
1423 | } | |
1424 | asus_proc_dir->owner = THIS_MODULE; | |
1425 | ||
1426 | result = acpi_bus_register_driver(&asus_hotk_driver); | |
578b333b BH |
1427 | if (result < 0) { |
1428 | remove_proc_entry(PROC_ASUS, acpi_root_dir); | |
5e7d8818 | 1429 | return result; |
578b333b BH |
1430 | } |
1431 | ||
1432 | /* | |
1433 | * This is a bit of a kludge. We only want this module loaded | |
1434 | * for ASUS systems, but there's currently no way to probe the | |
1435 | * ACPI namespace for ASUS HIDs. So we just return failure if | |
1436 | * we didn't find one, which will cause the module to be | |
1437 | * unloaded. | |
1438 | */ | |
1439 | if (!asus_hotk_found) { | |
1da177e4 LT |
1440 | acpi_bus_unregister_driver(&asus_hotk_driver); |
1441 | remove_proc_entry(PROC_ASUS, acpi_root_dir); | |
5ebffd7c | 1442 | return -ENODEV; |
1da177e4 LT |
1443 | } |
1444 | ||
519ab5f2 | 1445 | asus_backlight_device = backlight_device_register("asus",NULL,NULL, |
2039a6eb HM |
1446 | &asus_backlight_data); |
1447 | if (IS_ERR(asus_backlight_device)) { | |
1448 | printk(KERN_ERR "Could not register asus backlight device\n"); | |
1449 | asus_backlight_device = NULL; | |
1450 | asus_acpi_exit(); | |
5ebffd7c | 1451 | return -ENODEV; |
2039a6eb | 1452 | } |
599a52d1 | 1453 | asus_backlight_device->props.max_brightness = 15; |
1da177e4 | 1454 | |
2039a6eb | 1455 | return 0; |
1da177e4 LT |
1456 | } |
1457 | ||
1458 | module_init(asus_acpi_init); | |
1459 | module_exit(asus_acpi_exit); |