Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * asus_acpi.c - Asus Laptop ACPI Extras | |
3 | * | |
4 | * | |
a170a531 | 5 | * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor |
1da177e4 LT |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | * | |
22 | * The development page for this driver is located at | |
23 | * http://sourceforge.net/projects/acpi4asus/ | |
24 | * | |
25 | * Credits: | |
26 | * Pontus Fuchs - Helper functions, cleanup | |
27 | * Johann Wiesner - Small compile fixes | |
28 | * John Belmonte - ACPI code for Toshiba laptop was a good starting point. | |
ad71860a | 29 | * �ic Burghard - LED display support for W1N |
1da177e4 | 30 | * |
1da177e4 LT |
31 | */ |
32 | ||
33 | #include <linux/kernel.h> | |
34 | #include <linux/module.h> | |
35 | #include <linux/init.h> | |
36 | #include <linux/types.h> | |
37 | #include <linux/proc_fs.h> | |
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" | |
59 | #define ACPI_HOTK_HID "ATK0100" | |
60 | ||
61 | /* | |
62 | * Some events we use, same for all Asus | |
63 | */ | |
4be44fcd | 64 | #define BR_UP 0x10 |
1da177e4 LT |
65 | #define BR_DOWN 0x20 |
66 | ||
67 | /* | |
68 | * Flags for hotk status | |
69 | */ | |
e067aaa7 KK |
70 | #define MLED_ON 0x01 //mail LED |
71 | #define WLED_ON 0x02 //wireless LED | |
72 | #define TLED_ON 0x04 //touchpad LED | |
73 | #define BT_ON 0x08 //internal Bluetooth | |
1da177e4 LT |
74 | |
75 | MODULE_AUTHOR("Julien Lerouge, Karol Kozimor"); | |
76 | MODULE_DESCRIPTION(ACPI_HOTK_NAME); | |
77 | MODULE_LICENSE("GPL"); | |
78 | ||
1da177e4 LT |
79 | static uid_t asus_uid; |
80 | static gid_t asus_gid; | |
81 | module_param(asus_uid, uint, 0); | |
aea19aa0 | 82 | MODULE_PARM_DESC(asus_uid, "UID for entries in /proc/acpi/asus.\n"); |
1da177e4 | 83 | module_param(asus_gid, uint, 0); |
aea19aa0 | 84 | MODULE_PARM_DESC(asus_gid, "GID for entries in /proc/acpi/asus.\n"); |
1da177e4 | 85 | |
1da177e4 LT |
86 | /* For each model, all features implemented, |
87 | * those marked with R are relative to HOTK, A for absolute */ | |
88 | struct model_data { | |
4be44fcd LB |
89 | char *name; //name of the laptop________________A |
90 | char *mt_mled; //method to handle mled_____________R | |
91 | char *mled_status; //node to handle mled reading_______A | |
92 | char *mt_wled; //method to handle wled_____________R | |
93 | char *wled_status; //node to handle wled reading_______A | |
94 | char *mt_tled; //method to handle tled_____________R | |
95 | char *tled_status; //node to handle tled reading_______A | |
42cb8912 | 96 | char *mt_ledd; //method to handle LED display______R |
e067aaa7 KK |
97 | char *mt_bt_switch; //method to switch Bluetooth on/off_R |
98 | char *bt_status; //no model currently supports this__? | |
99 | char *mt_lcd_switch; //method to turn LCD on/off_________A | |
4be44fcd LB |
100 | char *lcd_status; //node to read LCD panel state______A |
101 | char *brightness_up; //method to set brightness up_______A | |
102 | char *brightness_down; //guess what ?______________________A | |
103 | char *brightness_set; //method to set absolute brightness_R | |
104 | char *brightness_get; //method to get absolute brightness_R | |
105 | char *brightness_status; //node to get brightness____________A | |
106 | char *display_set; //method to set video output________R | |
107 | char *display_get; //method to get video output________R | |
1da177e4 LT |
108 | }; |
109 | ||
110 | /* | |
111 | * This is the main structure, we can use it to store anything interesting | |
112 | * about the hotk device | |
113 | */ | |
114 | struct asus_hotk { | |
4be44fcd LB |
115 | struct acpi_device *device; //the device we are in |
116 | acpi_handle handle; //the handle of the hotk device | |
117 | char status; //status of the hotk, for LEDs, ... | |
42cb8912 | 118 | u32 ledd_status; //status of the LED display |
4be44fcd LB |
119 | struct model_data *methods; //methods available on the laptop |
120 | u8 brightness; //brightness level | |
1da177e4 | 121 | enum { |
4be44fcd LB |
122 | A1x = 0, //A1340D, A1300F |
123 | A2x, //A2500H | |
f78c589d | 124 | A4G, //A4700G |
4be44fcd LB |
125 | D1x, //D1 |
126 | L2D, //L2000D | |
127 | L3C, //L3800C | |
128 | L3D, //L3400D | |
ebccb848 | 129 | L3H, //L3H, L2000E, L5D |
4be44fcd LB |
130 | L4R, //L4500R |
131 | L5x, //L5800C | |
132 | L8L, //L8400L | |
133 | M1A, //M1300A | |
134 | M2E, //M2400E, L4400L | |
c067a789 | 135 | M6N, //M6800N, W3400N |
ed2cb07b | 136 | M6R, //M6700R, A3000G |
4be44fcd LB |
137 | P30, //Samsung P30 |
138 | S1x, //S1300A, but also L1400B and M2400A (L84F) | |
139 | S2x, //S200 (J1 reported), Victor MP-XP7210 | |
42cb8912 | 140 | W1N, //W1000N |
e067aaa7 | 141 | W5A, //W5A |
288f3ad4 | 142 | W3V, //W3030V |
42cb8912 | 143 | xxN, //M2400N, M3700N, M5200N, M6800N, S1300N, S5200N |
1c0f0575 | 144 | A4S, //Z81sp |
4be44fcd | 145 | //(Centrino) |
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" | |
409 | } | |
410 | ||
1da177e4 LT |
411 | }; |
412 | ||
413 | /* procdir we use */ | |
414 | static struct proc_dir_entry *asus_proc_dir; | |
415 | ||
2039a6eb HM |
416 | static struct backlight_device *asus_backlight_device; |
417 | ||
1da177e4 LT |
418 | /* |
419 | * This header is made available to allow proper configuration given model, | |
420 | * revision number , ... this info cannot go in struct asus_hotk because it is | |
421 | * available before the hotk | |
422 | */ | |
423 | static struct acpi_table_header *asus_info; | |
424 | ||
425 | /* The actual device the driver binds to */ | |
426 | static struct asus_hotk *hotk; | |
427 | ||
428 | /* | |
429 | * The hotkey driver declaration | |
430 | */ | |
431 | static int asus_hotk_add(struct acpi_device *device); | |
432 | static int asus_hotk_remove(struct acpi_device *device, int type); | |
433 | static struct acpi_driver asus_hotk_driver = { | |
c2b6705b | 434 | .name = "asus_acpi", |
4be44fcd LB |
435 | .class = ACPI_HOTK_CLASS, |
436 | .ids = ACPI_HOTK_HID, | |
437 | .ops = { | |
438 | .add = asus_hotk_add, | |
439 | .remove = asus_hotk_remove, | |
440 | }, | |
1da177e4 LT |
441 | }; |
442 | ||
443 | /* | |
444 | * This function evaluates an ACPI method, given an int as parameter, the | |
445 | * method is searched within the scope of the handle, can be NULL. The output | |
446 | * of the method is written is output, which can also be NULL | |
447 | * | |
448 | * returns 1 if write is successful, 0 else. | |
449 | */ | |
450 | static int write_acpi_int(acpi_handle handle, const char *method, int val, | |
451 | struct acpi_buffer *output) | |
452 | { | |
453 | struct acpi_object_list params; //list of input parameters (an int here) | |
454 | union acpi_object in_obj; //the only param we use | |
455 | acpi_status status; | |
456 | ||
457 | params.count = 1; | |
458 | params.pointer = &in_obj; | |
459 | in_obj.type = ACPI_TYPE_INTEGER; | |
460 | in_obj.integer.value = val; | |
461 | ||
4be44fcd | 462 | status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); |
1da177e4 LT |
463 | return (status == AE_OK); |
464 | } | |
465 | ||
1da177e4 LT |
466 | static int read_acpi_int(acpi_handle handle, const char *method, int *val) |
467 | { | |
468 | struct acpi_buffer output; | |
469 | union acpi_object out_obj; | |
470 | acpi_status status; | |
471 | ||
472 | output.length = sizeof(out_obj); | |
473 | output.pointer = &out_obj; | |
474 | ||
4be44fcd | 475 | status = acpi_evaluate_object(handle, (char *)method, NULL, &output); |
1da177e4 LT |
476 | *val = out_obj.integer.value; |
477 | return (status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER); | |
478 | } | |
479 | ||
480 | /* | |
481 | * We write our info in page, we begin at offset off and cannot write more | |
482 | * than count bytes. We set eof to 1 if we handle those 2 values. We return the | |
483 | * number of bytes written in page | |
484 | */ | |
485 | static int | |
486 | proc_read_info(char *page, char **start, off_t off, int count, int *eof, | |
4be44fcd | 487 | void *data) |
1da177e4 LT |
488 | { |
489 | int len = 0; | |
490 | int temp; | |
491 | char buf[16]; //enough for all info | |
492 | /* | |
493 | * We use the easy way, we don't care of off and count, so we don't set eof | |
494 | * to 1 | |
495 | */ | |
496 | ||
497 | len += sprintf(page, ACPI_HOTK_NAME " " ASUS_ACPI_VERSION "\n"); | |
4be44fcd | 498 | len += sprintf(page + len, "Model reference : %s\n", |
1da177e4 LT |
499 | hotk->methods->name); |
500 | /* | |
501 | * The SFUN method probably allows the original driver to get the list | |
502 | * of features supported by a given model. For now, 0x0100 or 0x0800 | |
503 | * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. | |
504 | * The significance of others is yet to be found. | |
505 | */ | |
506 | if (read_acpi_int(hotk->handle, "SFUN", &temp)) | |
4be44fcd LB |
507 | len += |
508 | sprintf(page + len, "SFUN value : 0x%04x\n", temp); | |
1da177e4 LT |
509 | /* |
510 | * Another value for userspace: the ASYM method returns 0x02 for | |
511 | * battery low and 0x04 for battery critical, its readings tend to be | |
512 | * more accurate than those provided by _BST. | |
513 | * Note: since not all the laptops provide this method, errors are | |
514 | * silently ignored. | |
515 | */ | |
516 | if (read_acpi_int(hotk->handle, "ASYM", &temp)) | |
4be44fcd LB |
517 | len += |
518 | sprintf(page + len, "ASYM value : 0x%04x\n", temp); | |
1da177e4 LT |
519 | if (asus_info) { |
520 | snprintf(buf, 16, "%d", asus_info->length); | |
521 | len += sprintf(page + len, "DSDT length : %s\n", buf); | |
522 | snprintf(buf, 16, "%d", asus_info->checksum); | |
523 | len += sprintf(page + len, "DSDT checksum : %s\n", buf); | |
524 | snprintf(buf, 16, "%d", asus_info->revision); | |
525 | len += sprintf(page + len, "DSDT revision : %s\n", buf); | |
526 | snprintf(buf, 7, "%s", asus_info->oem_id); | |
527 | len += sprintf(page + len, "OEM id : %s\n", buf); | |
528 | snprintf(buf, 9, "%s", asus_info->oem_table_id); | |
529 | len += sprintf(page + len, "OEM table id : %s\n", buf); | |
530 | snprintf(buf, 16, "%x", asus_info->oem_revision); | |
531 | len += sprintf(page + len, "OEM revision : 0x%s\n", buf); | |
532 | snprintf(buf, 5, "%s", asus_info->asl_compiler_id); | |
533 | len += sprintf(page + len, "ASL comp vendor id : %s\n", buf); | |
534 | snprintf(buf, 16, "%x", asus_info->asl_compiler_revision); | |
535 | len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf); | |
536 | } | |
537 | ||
538 | return len; | |
539 | } | |
540 | ||
1da177e4 LT |
541 | /* |
542 | * /proc handlers | |
543 | * We write our info in page, we begin at offset off and cannot write more | |
544 | * than count bytes. We set eof to 1 if we handle those 2 values. We return the | |
545 | * number of bytes written in page | |
546 | */ | |
547 | ||
548 | /* Generic LED functions */ | |
4be44fcd | 549 | static int read_led(const char *ledname, int ledmask) |
1da177e4 LT |
550 | { |
551 | if (ledname) { | |
552 | int led_status; | |
553 | ||
554 | if (read_acpi_int(NULL, ledname, &led_status)) | |
555 | return led_status; | |
556 | else | |
557 | printk(KERN_WARNING "Asus ACPI: Error reading LED " | |
558 | "status\n"); | |
559 | } | |
560 | return (hotk->status & ledmask) ? 1 : 0; | |
561 | } | |
562 | ||
4be44fcd | 563 | static int parse_arg(const char __user * buf, unsigned long count, int *val) |
1da177e4 LT |
564 | { |
565 | char s[32]; | |
566 | if (!count) | |
567 | return 0; | |
568 | if (count > 31) | |
569 | return -EINVAL; | |
570 | if (copy_from_user(s, buf, count)) | |
571 | return -EFAULT; | |
572 | s[count] = 0; | |
573 | if (sscanf(s, "%i", val) != 1) | |
574 | return -EINVAL; | |
575 | return count; | |
576 | } | |
577 | ||
578 | /* FIXME: kill extraneous args so it can be called independently */ | |
579 | static int | |
4be44fcd LB |
580 | write_led(const char __user * buffer, unsigned long count, |
581 | char *ledname, int ledmask, int invert) | |
1da177e4 | 582 | { |
6311f0da | 583 | int rv, value; |
1da177e4 LT |
584 | int led_out = 0; |
585 | ||
6311f0da DJ |
586 | rv = parse_arg(buffer, count, &value); |
587 | if (rv > 0) | |
1da177e4 LT |
588 | led_out = value ? 1 : 0; |
589 | ||
590 | hotk->status = | |
591 | (led_out) ? (hotk->status | ledmask) : (hotk->status & ~ledmask); | |
592 | ||
4be44fcd | 593 | if (invert) /* invert target value */ |
1da177e4 LT |
594 | led_out = !led_out & 0x1; |
595 | ||
596 | if (!write_acpi_int(hotk->handle, ledname, led_out, NULL)) | |
4be44fcd LB |
597 | printk(KERN_WARNING "Asus ACPI: LED (%s) write failed\n", |
598 | ledname); | |
1da177e4 | 599 | |
6311f0da | 600 | return rv; |
1da177e4 LT |
601 | } |
602 | ||
1da177e4 LT |
603 | /* |
604 | * Proc handlers for MLED | |
605 | */ | |
606 | static int | |
607 | proc_read_mled(char *page, char **start, off_t off, int count, int *eof, | |
608 | void *data) | |
609 | { | |
4be44fcd LB |
610 | return sprintf(page, "%d\n", |
611 | read_led(hotk->methods->mled_status, MLED_ON)); | |
1da177e4 LT |
612 | } |
613 | ||
1da177e4 | 614 | static int |
4be44fcd | 615 | proc_write_mled(struct file *file, const char __user * buffer, |
1da177e4 LT |
616 | unsigned long count, void *data) |
617 | { | |
618 | return write_led(buffer, count, hotk->methods->mt_mled, MLED_ON, 1); | |
619 | } | |
620 | ||
42cb8912 KK |
621 | /* |
622 | * Proc handlers for LED display | |
623 | */ | |
624 | static int | |
625 | proc_read_ledd(char *page, char **start, off_t off, int count, int *eof, | |
626 | void *data) | |
627 | { | |
628 | return sprintf(page, "0x%08x\n", hotk->ledd_status); | |
629 | } | |
630 | ||
631 | static int | |
632 | proc_write_ledd(struct file *file, const char __user * buffer, | |
633 | unsigned long count, void *data) | |
634 | { | |
6311f0da | 635 | int rv, value; |
42cb8912 | 636 | |
6311f0da DJ |
637 | rv = parse_arg(buffer, count, &value); |
638 | if (rv > 0) { | |
42cb8912 KK |
639 | if (!write_acpi_int |
640 | (hotk->handle, hotk->methods->mt_ledd, value, NULL)) | |
641 | printk(KERN_WARNING | |
642 | "Asus ACPI: LED display write failed\n"); | |
643 | else | |
644 | hotk->ledd_status = (u32) value; | |
6df05702 | 645 | } |
6311f0da | 646 | return rv; |
42cb8912 KK |
647 | } |
648 | ||
1da177e4 LT |
649 | /* |
650 | * Proc handlers for WLED | |
651 | */ | |
652 | static int | |
653 | proc_read_wled(char *page, char **start, off_t off, int count, int *eof, | |
654 | void *data) | |
655 | { | |
4be44fcd LB |
656 | return sprintf(page, "%d\n", |
657 | read_led(hotk->methods->wled_status, WLED_ON)); | |
1da177e4 LT |
658 | } |
659 | ||
660 | static int | |
4be44fcd | 661 | proc_write_wled(struct file *file, const char __user * buffer, |
1da177e4 LT |
662 | unsigned long count, void *data) |
663 | { | |
664 | return write_led(buffer, count, hotk->methods->mt_wled, WLED_ON, 0); | |
665 | } | |
666 | ||
e067aaa7 KK |
667 | /* |
668 | * Proc handlers for Bluetooth | |
669 | */ | |
670 | static int | |
671 | proc_read_bluetooth(char *page, char **start, off_t off, int count, int *eof, | |
672 | void *data) | |
673 | { | |
674 | return sprintf(page, "%d\n", read_led(hotk->methods->bt_status, BT_ON)); | |
675 | } | |
676 | ||
677 | static int | |
678 | proc_write_bluetooth(struct file *file, const char __user * buffer, | |
679 | unsigned long count, void *data) | |
680 | { | |
681 | /* Note: mt_bt_switch controls both internal Bluetooth adapter's | |
682 | presence and its LED */ | |
683 | return write_led(buffer, count, hotk->methods->mt_bt_switch, BT_ON, 0); | |
684 | } | |
685 | ||
1da177e4 LT |
686 | /* |
687 | * Proc handlers for TLED | |
688 | */ | |
689 | static int | |
690 | proc_read_tled(char *page, char **start, off_t off, int count, int *eof, | |
691 | void *data) | |
692 | { | |
4be44fcd LB |
693 | return sprintf(page, "%d\n", |
694 | read_led(hotk->methods->tled_status, TLED_ON)); | |
1da177e4 LT |
695 | } |
696 | ||
697 | static int | |
4be44fcd | 698 | proc_write_tled(struct file *file, const char __user * buffer, |
1da177e4 LT |
699 | unsigned long count, void *data) |
700 | { | |
701 | return write_led(buffer, count, hotk->methods->mt_tled, TLED_ON, 0); | |
702 | } | |
703 | ||
1da177e4 LT |
704 | static int get_lcd_state(void) |
705 | { | |
706 | int lcd = 0; | |
707 | ||
708 | if (hotk->model != L3H) { | |
4be44fcd | 709 | /* We don't have to check anything if we are here */ |
1da177e4 | 710 | if (!read_acpi_int(NULL, hotk->methods->lcd_status, &lcd)) |
4be44fcd LB |
711 | printk(KERN_WARNING |
712 | "Asus ACPI: Error reading LCD status\n"); | |
713 | ||
1da177e4 LT |
714 | if (hotk->model == L2D) |
715 | lcd = ~lcd; | |
4be44fcd | 716 | } else { /* L3H and the like have to be handled differently */ |
1da177e4 LT |
717 | acpi_status status = 0; |
718 | struct acpi_object_list input; | |
719 | union acpi_object mt_params[2]; | |
720 | struct acpi_buffer output; | |
721 | union acpi_object out_obj; | |
4be44fcd | 722 | |
1da177e4 LT |
723 | input.count = 2; |
724 | input.pointer = mt_params; | |
725 | /* Note: the following values are partly guessed up, but | |
726 | otherwise they seem to work */ | |
727 | mt_params[0].type = ACPI_TYPE_INTEGER; | |
728 | mt_params[0].integer.value = 0x02; | |
729 | mt_params[1].type = ACPI_TYPE_INTEGER; | |
730 | mt_params[1].integer.value = 0x02; | |
731 | ||
732 | output.length = sizeof(out_obj); | |
733 | output.pointer = &out_obj; | |
4be44fcd LB |
734 | |
735 | status = | |
736 | acpi_evaluate_object(NULL, hotk->methods->lcd_status, | |
737 | &input, &output); | |
1da177e4 LT |
738 | if (status != AE_OK) |
739 | return -1; | |
740 | if (out_obj.type == ACPI_TYPE_INTEGER) | |
741 | /* That's what the AML code does */ | |
742 | lcd = out_obj.integer.value >> 8; | |
743 | } | |
4be44fcd | 744 | |
1da177e4 LT |
745 | return (lcd & 1); |
746 | } | |
747 | ||
748 | static int set_lcd_state(int value) | |
749 | { | |
750 | int lcd = 0; | |
751 | acpi_status status = 0; | |
752 | ||
753 | lcd = value ? 1 : 0; | |
754 | if (lcd != get_lcd_state()) { | |
755 | /* switch */ | |
756 | if (hotk->model != L3H) { | |
757 | status = | |
4be44fcd LB |
758 | acpi_evaluate_object(NULL, |
759 | hotk->methods->mt_lcd_switch, | |
1da177e4 | 760 | NULL, NULL); |
4be44fcd LB |
761 | } else { /* L3H and the like have to be handled differently */ |
762 | if (!write_acpi_int | |
763 | (hotk->handle, hotk->methods->mt_lcd_switch, 0x07, | |
764 | NULL)) | |
1da177e4 LT |
765 | status = AE_ERROR; |
766 | /* L3H's AML executes EHK (0x07) upon Fn+F7 keypress, | |
767 | the exact behaviour is simulated here */ | |
768 | } | |
769 | if (ACPI_FAILURE(status)) | |
770 | printk(KERN_WARNING "Asus ACPI: Error switching LCD\n"); | |
771 | } | |
772 | return 0; | |
773 | ||
774 | } | |
775 | ||
776 | static int | |
777 | proc_read_lcd(char *page, char **start, off_t off, int count, int *eof, | |
778 | void *data) | |
779 | { | |
780 | return sprintf(page, "%d\n", get_lcd_state()); | |
781 | } | |
782 | ||
1da177e4 | 783 | static int |
4be44fcd | 784 | proc_write_lcd(struct file *file, const char __user * buffer, |
1da177e4 LT |
785 | unsigned long count, void *data) |
786 | { | |
6311f0da | 787 | int rv, value; |
4be44fcd | 788 | |
6311f0da DJ |
789 | rv = parse_arg(buffer, count, &value); |
790 | if (rv > 0) | |
1da177e4 | 791 | set_lcd_state(value); |
6311f0da | 792 | return rv; |
1da177e4 LT |
793 | } |
794 | ||
2039a6eb | 795 | static int read_brightness(struct backlight_device *bd) |
1da177e4 LT |
796 | { |
797 | int value; | |
4be44fcd LB |
798 | |
799 | if (hotk->methods->brightness_get) { /* SPLV/GPLV laptop */ | |
800 | if (!read_acpi_int(hotk->handle, hotk->methods->brightness_get, | |
1da177e4 | 801 | &value)) |
4be44fcd LB |
802 | printk(KERN_WARNING |
803 | "Asus ACPI: Error reading brightness\n"); | |
804 | } else if (hotk->methods->brightness_status) { /* For D1 for example */ | |
805 | if (!read_acpi_int(NULL, hotk->methods->brightness_status, | |
1da177e4 | 806 | &value)) |
4be44fcd LB |
807 | printk(KERN_WARNING |
808 | "Asus ACPI: Error reading brightness\n"); | |
809 | } else /* No GPLV method */ | |
1da177e4 LT |
810 | value = hotk->brightness; |
811 | return value; | |
812 | } | |
813 | ||
814 | /* | |
815 | * Change the brightness level | |
816 | */ | |
2039a6eb | 817 | static int set_brightness(int value) |
1da177e4 LT |
818 | { |
819 | acpi_status status = 0; | |
2039a6eb | 820 | int ret = 0; |
1da177e4 LT |
821 | |
822 | /* SPLV laptop */ | |
4be44fcd LB |
823 | if (hotk->methods->brightness_set) { |
824 | if (!write_acpi_int(hotk->handle, hotk->methods->brightness_set, | |
1da177e4 | 825 | value, NULL)) |
4be44fcd LB |
826 | printk(KERN_WARNING |
827 | "Asus ACPI: Error changing brightness\n"); | |
2039a6eb HM |
828 | ret = -EIO; |
829 | goto out; | |
1da177e4 LT |
830 | } |
831 | ||
832 | /* No SPLV method if we are here, act as appropriate */ | |
2039a6eb | 833 | value -= read_brightness(NULL); |
1da177e4 | 834 | while (value != 0) { |
4be44fcd LB |
835 | status = acpi_evaluate_object(NULL, (value > 0) ? |
836 | hotk->methods->brightness_up : | |
1da177e4 LT |
837 | hotk->methods->brightness_down, |
838 | NULL, NULL); | |
839 | (value > 0) ? value-- : value++; | |
840 | if (ACPI_FAILURE(status)) | |
4be44fcd LB |
841 | printk(KERN_WARNING |
842 | "Asus ACPI: Error changing brightness\n"); | |
2039a6eb | 843 | ret = -EIO; |
1da177e4 | 844 | } |
2039a6eb HM |
845 | out: |
846 | return ret; | |
847 | } | |
848 | ||
849 | static int set_brightness_status(struct backlight_device *bd) | |
850 | { | |
599a52d1 | 851 | return set_brightness(bd->props.brightness); |
1da177e4 LT |
852 | } |
853 | ||
854 | static int | |
855 | proc_read_brn(char *page, char **start, off_t off, int count, int *eof, | |
856 | void *data) | |
857 | { | |
2039a6eb | 858 | return sprintf(page, "%d\n", read_brightness(NULL)); |
1da177e4 LT |
859 | } |
860 | ||
861 | static int | |
4be44fcd | 862 | proc_write_brn(struct file *file, const char __user * buffer, |
1da177e4 LT |
863 | unsigned long count, void *data) |
864 | { | |
6311f0da | 865 | int rv, value; |
1da177e4 | 866 | |
6311f0da DJ |
867 | rv = parse_arg(buffer, count, &value); |
868 | if (rv > 0) { | |
1da177e4 | 869 | value = (0 < value) ? ((15 < value) ? 15 : value) : 0; |
4be44fcd | 870 | /* 0 <= value <= 15 */ |
1da177e4 | 871 | set_brightness(value); |
1da177e4 | 872 | } |
6311f0da | 873 | return rv; |
1da177e4 LT |
874 | } |
875 | ||
876 | static void set_display(int value) | |
877 | { | |
878 | /* no sanity check needed for now */ | |
4be44fcd | 879 | if (!write_acpi_int(hotk->handle, hotk->methods->display_set, |
1da177e4 LT |
880 | value, NULL)) |
881 | printk(KERN_WARNING "Asus ACPI: Error setting display\n"); | |
882 | return; | |
883 | } | |
884 | ||
885 | /* | |
886 | * Now, *this* one could be more user-friendly, but so far, no-one has | |
887 | * complained. The significance of bits is the same as in proc_write_disp() | |
888 | */ | |
889 | static int | |
890 | proc_read_disp(char *page, char **start, off_t off, int count, int *eof, | |
4be44fcd | 891 | void *data) |
1da177e4 LT |
892 | { |
893 | int value = 0; | |
4be44fcd | 894 | |
1da177e4 | 895 | if (!read_acpi_int(hotk->handle, hotk->methods->display_get, &value)) |
4be44fcd LB |
896 | printk(KERN_WARNING |
897 | "Asus ACPI: Error reading display status\n"); | |
898 | value &= 0x07; /* needed for some models, shouldn't hurt others */ | |
1da177e4 LT |
899 | return sprintf(page, "%d\n", value); |
900 | } | |
901 | ||
902 | /* | |
903 | * Experimental support for display switching. As of now: 1 should activate | |
904 | * the LCD output, 2 should do for CRT, and 4 for TV-Out. Any combination | |
905 | * (bitwise) of these will suffice. I never actually tested 3 displays hooked up | |
906 | * simultaneously, so be warned. See the acpi4asus README for more info. | |
907 | */ | |
908 | static int | |
4be44fcd LB |
909 | proc_write_disp(struct file *file, const char __user * buffer, |
910 | unsigned long count, void *data) | |
1da177e4 | 911 | { |
6311f0da | 912 | int rv, value; |
1da177e4 | 913 | |
6311f0da DJ |
914 | rv = parse_arg(buffer, count, &value); |
915 | if (rv > 0) | |
1da177e4 | 916 | set_display(value); |
6311f0da | 917 | return rv; |
1da177e4 LT |
918 | } |
919 | ||
4be44fcd LB |
920 | typedef int (proc_readfunc) (char *page, char **start, off_t off, int count, |
921 | int *eof, void *data); | |
922 | typedef int (proc_writefunc) (struct file * file, const char __user * buffer, | |
923 | unsigned long count, void *data); | |
1da177e4 LT |
924 | |
925 | static int | |
200739c1 | 926 | asus_proc_add(char *name, proc_writefunc * writefunc, |
4be44fcd LB |
927 | proc_readfunc * readfunc, mode_t mode, |
928 | struct acpi_device *device) | |
1da177e4 | 929 | { |
4be44fcd LB |
930 | struct proc_dir_entry *proc = |
931 | create_proc_entry(name, mode, acpi_device_dir(device)); | |
932 | if (!proc) { | |
1da177e4 LT |
933 | printk(KERN_WARNING " Unable to create %s fs entry\n", name); |
934 | return -1; | |
935 | } | |
936 | proc->write_proc = writefunc; | |
937 | proc->read_proc = readfunc; | |
938 | proc->data = acpi_driver_data(device); | |
939 | proc->owner = THIS_MODULE; | |
940 | proc->uid = asus_uid; | |
941 | proc->gid = asus_gid; | |
942 | return 0; | |
943 | } | |
944 | ||
200739c1 | 945 | static int asus_hotk_add_fs(struct acpi_device *device) |
1da177e4 LT |
946 | { |
947 | struct proc_dir_entry *proc; | |
948 | mode_t mode; | |
4be44fcd | 949 | |
1da177e4 LT |
950 | /* |
951 | * If parameter uid or gid is not changed, keep the default setting for | |
952 | * our proc entries (-rw-rw-rw-) else, it means we care about security, | |
953 | * and then set to -rw-rw---- | |
954 | */ | |
955 | ||
4be44fcd | 956 | if ((asus_uid == 0) && (asus_gid == 0)) { |
1da177e4 LT |
957 | mode = S_IFREG | S_IRUGO | S_IWUGO; |
958 | } else { | |
959 | mode = S_IFREG | S_IRUSR | S_IRGRP | S_IWUSR | S_IWGRP; | |
aea19aa0 KK |
960 | printk(KERN_WARNING " asus_uid and asus_gid parameters are " |
961 | "deprecated, use chown and chmod instead!\n"); | |
1da177e4 LT |
962 | } |
963 | ||
964 | acpi_device_dir(device) = asus_proc_dir; | |
965 | if (!acpi_device_dir(device)) | |
966 | return -ENODEV; | |
967 | ||
968 | proc = create_proc_entry(PROC_INFO, mode, acpi_device_dir(device)); | |
969 | if (proc) { | |
970 | proc->read_proc = proc_read_info; | |
971 | proc->data = acpi_driver_data(device); | |
972 | proc->owner = THIS_MODULE; | |
973 | proc->uid = asus_uid; | |
974 | proc->gid = asus_gid; | |
975 | } else { | |
976 | printk(KERN_WARNING " Unable to create " PROC_INFO | |
977 | " fs entry\n"); | |
978 | } | |
979 | ||
980 | if (hotk->methods->mt_wled) { | |
4be44fcd LB |
981 | asus_proc_add(PROC_WLED, &proc_write_wled, &proc_read_wled, |
982 | mode, device); | |
1da177e4 LT |
983 | } |
984 | ||
42cb8912 KK |
985 | if (hotk->methods->mt_ledd) { |
986 | asus_proc_add(PROC_LEDD, &proc_write_ledd, &proc_read_ledd, | |
987 | mode, device); | |
988 | } | |
989 | ||
1da177e4 | 990 | if (hotk->methods->mt_mled) { |
4be44fcd LB |
991 | asus_proc_add(PROC_MLED, &proc_write_mled, &proc_read_mled, |
992 | mode, device); | |
1da177e4 LT |
993 | } |
994 | ||
995 | if (hotk->methods->mt_tled) { | |
4be44fcd LB |
996 | asus_proc_add(PROC_TLED, &proc_write_tled, &proc_read_tled, |
997 | mode, device); | |
1da177e4 LT |
998 | } |
999 | ||
e067aaa7 KK |
1000 | if (hotk->methods->mt_bt_switch) { |
1001 | asus_proc_add(PROC_BT, &proc_write_bluetooth, | |
1002 | &proc_read_bluetooth, mode, device); | |
1003 | } | |
1004 | ||
1da177e4 LT |
1005 | /* |
1006 | * We need both read node and write method as LCD switch is also accessible | |
1007 | * from keyboard | |
1008 | */ | |
1009 | if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) { | |
4be44fcd LB |
1010 | asus_proc_add(PROC_LCD, &proc_write_lcd, &proc_read_lcd, mode, |
1011 | device); | |
1da177e4 | 1012 | } |
4be44fcd | 1013 | |
1da177e4 LT |
1014 | if ((hotk->methods->brightness_up && hotk->methods->brightness_down) || |
1015 | (hotk->methods->brightness_get && hotk->methods->brightness_set)) { | |
4be44fcd LB |
1016 | asus_proc_add(PROC_BRN, &proc_write_brn, &proc_read_brn, mode, |
1017 | device); | |
1da177e4 LT |
1018 | } |
1019 | ||
1020 | if (hotk->methods->display_set) { | |
4be44fcd LB |
1021 | asus_proc_add(PROC_DISP, &proc_write_disp, &proc_read_disp, |
1022 | mode, device); | |
1da177e4 LT |
1023 | } |
1024 | ||
1025 | return 0; | |
1026 | } | |
1027 | ||
4be44fcd | 1028 | static int asus_hotk_remove_fs(struct acpi_device *device) |
1da177e4 | 1029 | { |
4be44fcd LB |
1030 | if (acpi_device_dir(device)) { |
1031 | remove_proc_entry(PROC_INFO, acpi_device_dir(device)); | |
1da177e4 | 1032 | if (hotk->methods->mt_wled) |
4be44fcd | 1033 | remove_proc_entry(PROC_WLED, acpi_device_dir(device)); |
1da177e4 | 1034 | if (hotk->methods->mt_mled) |
4be44fcd | 1035 | remove_proc_entry(PROC_MLED, acpi_device_dir(device)); |
1da177e4 | 1036 | if (hotk->methods->mt_tled) |
4be44fcd | 1037 | remove_proc_entry(PROC_TLED, acpi_device_dir(device)); |
42cb8912 KK |
1038 | if (hotk->methods->mt_ledd) |
1039 | remove_proc_entry(PROC_LEDD, acpi_device_dir(device)); | |
e067aaa7 KK |
1040 | if (hotk->methods->mt_bt_switch) |
1041 | remove_proc_entry(PROC_BT, acpi_device_dir(device)); | |
1da177e4 LT |
1042 | if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) |
1043 | remove_proc_entry(PROC_LCD, acpi_device_dir(device)); | |
4be44fcd LB |
1044 | if ((hotk->methods->brightness_up |
1045 | && hotk->methods->brightness_down) | |
1046 | || (hotk->methods->brightness_get | |
1047 | && hotk->methods->brightness_set)) | |
1da177e4 LT |
1048 | remove_proc_entry(PROC_BRN, acpi_device_dir(device)); |
1049 | if (hotk->methods->display_set) | |
1050 | remove_proc_entry(PROC_DISP, acpi_device_dir(device)); | |
1051 | } | |
1052 | return 0; | |
1053 | } | |
1054 | ||
1da177e4 LT |
1055 | static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) |
1056 | { | |
4be44fcd | 1057 | /* TODO Find a better way to handle events count. */ |
1da177e4 LT |
1058 | if (!hotk) |
1059 | return; | |
1060 | ||
1061 | if ((event & ~((u32) BR_UP)) < 16) { | |
1062 | hotk->brightness = (event & ~((u32) BR_UP)); | |
4be44fcd | 1063 | } else if ((event & ~((u32) BR_DOWN)) < 16) { |
1da177e4 LT |
1064 | hotk->brightness = (event & ~((u32) BR_DOWN)); |
1065 | } | |
1066 | ||
1067 | acpi_bus_generate_event(hotk->device, event, | |
1068 | hotk->event_count[event % 128]++); | |
1069 | ||
1070 | return; | |
1071 | } | |
1072 | ||
ffab0d95 KK |
1073 | /* |
1074 | * Match the model string to the list of supported models. Return END_MODEL if | |
1075 | * no match or model is NULL. | |
1076 | */ | |
1077 | static int asus_model_match(char *model) | |
1078 | { | |
1079 | if (model == NULL) | |
1080 | return END_MODEL; | |
1081 | ||
1082 | if (strncmp(model, "L3D", 3) == 0) | |
1083 | return L3D; | |
1084 | else if (strncmp(model, "L2E", 3) == 0 || | |
1085 | strncmp(model, "L3H", 3) == 0 || strncmp(model, "L5D", 3) == 0) | |
1086 | return L3H; | |
1087 | else if (strncmp(model, "L3", 2) == 0 || strncmp(model, "L2B", 3) == 0) | |
1088 | return L3C; | |
1089 | else if (strncmp(model, "L8L", 3) == 0) | |
1090 | return L8L; | |
1091 | else if (strncmp(model, "L4R", 3) == 0) | |
1092 | return L4R; | |
1093 | else if (strncmp(model, "M6N", 3) == 0 || strncmp(model, "W3N", 3) == 0) | |
1094 | return M6N; | |
1095 | else if (strncmp(model, "M6R", 3) == 0 || strncmp(model, "A3G", 3) == 0) | |
1096 | return M6R; | |
1097 | else if (strncmp(model, "M2N", 3) == 0 || | |
1098 | strncmp(model, "M3N", 3) == 0 || | |
1099 | strncmp(model, "M5N", 3) == 0 || | |
1100 | strncmp(model, "M6N", 3) == 0 || | |
1101 | strncmp(model, "S1N", 3) == 0 || | |
1102 | strncmp(model, "S5N", 3) == 0 || strncmp(model, "W1N", 3) == 0) | |
1103 | return xxN; | |
1104 | else if (strncmp(model, "M1", 2) == 0) | |
1105 | return M1A; | |
1106 | else if (strncmp(model, "M2", 2) == 0 || strncmp(model, "L4E", 3) == 0) | |
1107 | return M2E; | |
1108 | else if (strncmp(model, "L2", 2) == 0) | |
1109 | return L2D; | |
1110 | else if (strncmp(model, "L8", 2) == 0) | |
1111 | return S1x; | |
1112 | else if (strncmp(model, "D1", 2) == 0) | |
1113 | return D1x; | |
1114 | else if (strncmp(model, "A1", 2) == 0) | |
1115 | return A1x; | |
1116 | else if (strncmp(model, "A2", 2) == 0) | |
1117 | return A2x; | |
1118 | else if (strncmp(model, "J1", 2) == 0) | |
1119 | return S2x; | |
1120 | else if (strncmp(model, "L5", 2) == 0) | |
1121 | return L5x; | |
1122 | else if (strncmp(model, "A4G", 3) == 0) | |
1123 | return A4G; | |
1124 | else if (strncmp(model, "W1N", 3) == 0) | |
1125 | return W1N; | |
288f3ad4 M |
1126 | else if (strncmp(model, "W3V", 3) == 0) |
1127 | return W3V; | |
ffab0d95 KK |
1128 | else if (strncmp(model, "W5A", 3) == 0) |
1129 | return W5A; | |
1c0f0575 MC |
1130 | else if (strncmp(model, "A4S", 3) == 0) |
1131 | return A4S; | |
ffab0d95 KK |
1132 | else |
1133 | return END_MODEL; | |
1134 | } | |
1135 | ||
1da177e4 LT |
1136 | /* |
1137 | * This function is used to initialize the hotk with right values. In this | |
1138 | * method, we can make all the detection we want, and modify the hotk struct | |
1139 | */ | |
200739c1 | 1140 | static int asus_hotk_get_info(void) |
1da177e4 LT |
1141 | { |
1142 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
1da177e4 LT |
1143 | union acpi_object *model = NULL; |
1144 | int bsts_result; | |
ffab0d95 | 1145 | char *string = NULL; |
1da177e4 LT |
1146 | acpi_status status; |
1147 | ||
1148 | /* | |
1149 | * Get DSDT headers early enough to allow for differentiating between | |
1150 | * models, but late enough to allow acpi_bus_register_driver() to fail | |
1151 | * before doing anything ACPI-specific. Should we encounter a machine, | |
1152 | * which needs special handling (i.e. its hotkey device has a different | |
1153 | * HID), this bit will be moved. A global variable asus_info contains | |
1154 | * the DSDT header. | |
1155 | */ | |
ad71860a | 1156 | status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus_info); |
1da177e4 LT |
1157 | if (ACPI_FAILURE(status)) |
1158 | printk(KERN_WARNING " Couldn't get the DSDT table header\n"); | |
1da177e4 LT |
1159 | |
1160 | /* We have to write 0 on init this far for all ASUS models */ | |
1161 | if (!write_acpi_int(hotk->handle, "INIT", 0, &buffer)) { | |
1162 | printk(KERN_ERR " Hotkey initialization failed\n"); | |
1163 | return -ENODEV; | |
1164 | } | |
1165 | ||
1166 | /* This needs to be called for some laptops to init properly */ | |
1167 | if (!read_acpi_int(hotk->handle, "BSTS", &bsts_result)) | |
1168 | printk(KERN_WARNING " Error calling BSTS\n"); | |
1169 | else if (bsts_result) | |
4be44fcd LB |
1170 | printk(KERN_NOTICE " BSTS called, 0x%02x returned\n", |
1171 | bsts_result); | |
1da177e4 | 1172 | |
b697b537 | 1173 | /* |
ffab0d95 KK |
1174 | * Try to match the object returned by INIT to the specific model. |
1175 | * Handle every possible object (or the lack of thereof) the DSDT | |
1176 | * writers might throw at us. When in trouble, we pass NULL to | |
1177 | * asus_model_match() and try something completely different. | |
b697b537 | 1178 | */ |
ffab0d95 | 1179 | if (buffer.pointer) { |
50dd0969 | 1180 | model = buffer.pointer; |
ffab0d95 KK |
1181 | switch (model->type) { |
1182 | case ACPI_TYPE_STRING: | |
1183 | string = model->string.pointer; | |
1184 | break; | |
1185 | case ACPI_TYPE_BUFFER: | |
1186 | string = model->buffer.pointer; | |
1187 | break; | |
1188 | default: | |
1189 | kfree(model); | |
1190 | break; | |
1191 | } | |
1192 | } | |
1193 | hotk->model = asus_model_match(string); | |
1194 | if (hotk->model == END_MODEL) { /* match failed */ | |
1195 | if (asus_info && | |
1da177e4 LT |
1196 | strncmp(asus_info->oem_table_id, "ODEM", 4) == 0) { |
1197 | hotk->model = P30; | |
4be44fcd LB |
1198 | printk(KERN_NOTICE |
1199 | " Samsung P30 detected, supported\n"); | |
1da177e4 LT |
1200 | } else { |
1201 | hotk->model = M2E; | |
ffab0d95 KK |
1202 | printk(KERN_NOTICE " unsupported model %s, trying " |
1203 | "default values\n", string); | |
1204 | printk(KERN_NOTICE | |
1205 | " send /proc/acpi/dsdt to the developers\n"); | |
1da177e4 LT |
1206 | } |
1207 | hotk->methods = &model_conf[hotk->model]; | |
b697b537 | 1208 | return AE_OK; |
1da177e4 | 1209 | } |
1da177e4 | 1210 | hotk->methods = &model_conf[hotk->model]; |
ffab0d95 | 1211 | printk(KERN_NOTICE " %s model detected, supported\n", string); |
1da177e4 LT |
1212 | |
1213 | /* Sort of per-model blacklist */ | |
ffab0d95 | 1214 | if (strncmp(string, "L2B", 3) == 0) |
4be44fcd | 1215 | hotk->methods->lcd_status = NULL; |
1da177e4 LT |
1216 | /* L2B is similar enough to L3C to use its settings, with this only |
1217 | exception */ | |
ffab0d95 | 1218 | else if (strncmp(string, "A3G", 3) == 0) |
ed2cb07b KK |
1219 | hotk->methods->lcd_status = "\\BLFG"; |
1220 | /* A3G is like M6R */ | |
ffab0d95 KK |
1221 | else if (strncmp(string, "S5N", 3) == 0 || |
1222 | strncmp(string, "M5N", 3) == 0 || | |
1223 | strncmp(string, "W3N", 3) == 0) | |
4be44fcd | 1224 | hotk->methods->mt_mled = NULL; |
c067a789 | 1225 | /* S5N, M5N and W3N have no MLED */ |
ffab0d95 | 1226 | else if (strncmp(string, "L5D", 3) == 0) |
ebccb848 KK |
1227 | hotk->methods->mt_wled = NULL; |
1228 | /* L5D's WLED is not controlled by ACPI */ | |
96d11420 | 1229 | else if (strncmp(string, "M2N", 3) == 0 || |
288f3ad4 | 1230 | strncmp(string, "W3V", 3) == 0 || |
96d11420 | 1231 | strncmp(string, "S1N", 3) == 0) |
4be44fcd | 1232 | hotk->methods->mt_wled = "WLED"; |
288f3ad4 | 1233 | /* M2N, S1N and W3V have a usable WLED */ |
1da177e4 LT |
1234 | else if (asus_info) { |
1235 | if (strncmp(asus_info->oem_table_id, "L1", 2) == 0) | |
1236 | hotk->methods->mled_status = NULL; | |
4be44fcd | 1237 | /* S1300A reports L84F, but L1400B too, account for that */ |
1da177e4 LT |
1238 | } |
1239 | ||
02438d87 | 1240 | kfree(model); |
1da177e4 LT |
1241 | |
1242 | return AE_OK; | |
1243 | } | |
1244 | ||
200739c1 | 1245 | static int asus_hotk_check(void) |
1da177e4 LT |
1246 | { |
1247 | int result = 0; | |
1248 | ||
1249 | result = acpi_bus_get_status(hotk->device); | |
1250 | if (result) | |
1251 | return result; | |
1252 | ||
1253 | if (hotk->device->status.present) { | |
1254 | result = asus_hotk_get_info(); | |
1255 | } else { | |
1256 | printk(KERN_ERR " Hotkey device not present, aborting\n"); | |
1257 | return -EINVAL; | |
1258 | } | |
1259 | ||
1260 | return result; | |
1261 | } | |
1262 | ||
578b333b BH |
1263 | static int asus_hotk_found; |
1264 | ||
200739c1 | 1265 | static int asus_hotk_add(struct acpi_device *device) |
1da177e4 LT |
1266 | { |
1267 | acpi_status status = AE_OK; | |
1268 | int result; | |
1269 | ||
1270 | if (!device) | |
1271 | return -EINVAL; | |
1272 | ||
1273 | printk(KERN_NOTICE "Asus Laptop ACPI Extras version %s\n", | |
1274 | ASUS_ACPI_VERSION); | |
1275 | ||
36bcbec7 | 1276 | hotk = kzalloc(sizeof(struct asus_hotk), GFP_KERNEL); |
1da177e4 LT |
1277 | if (!hotk) |
1278 | return -ENOMEM; | |
1da177e4 LT |
1279 | |
1280 | hotk->handle = device->handle; | |
1281 | strcpy(acpi_device_name(device), ACPI_HOTK_DEVICE_NAME); | |
1282 | strcpy(acpi_device_class(device), ACPI_HOTK_CLASS); | |
1283 | acpi_driver_data(device) = hotk; | |
1284 | hotk->device = device; | |
1285 | ||
1da177e4 LT |
1286 | result = asus_hotk_check(); |
1287 | if (result) | |
1288 | goto end; | |
1289 | ||
1290 | result = asus_hotk_add_fs(device); | |
1291 | if (result) | |
1292 | goto end; | |
1293 | ||
1294 | /* | |
1295 | * We install the handler, it will receive the hotk in parameter, so, we | |
1296 | * could add other data to the hotk struct | |
1297 | */ | |
1298 | status = acpi_install_notify_handler(hotk->handle, ACPI_SYSTEM_NOTIFY, | |
1299 | asus_hotk_notify, hotk); | |
1300 | if (ACPI_FAILURE(status)) | |
1301 | printk(KERN_ERR " Error installing notify handler\n"); | |
1302 | ||
1303 | /* For laptops without GPLV: init the hotk->brightness value */ | |
4be44fcd LB |
1304 | if ((!hotk->methods->brightness_get) |
1305 | && (!hotk->methods->brightness_status) | |
a170a531 | 1306 | && (hotk->methods->brightness_up && hotk->methods->brightness_down)) { |
4be44fcd LB |
1307 | status = |
1308 | acpi_evaluate_object(NULL, hotk->methods->brightness_down, | |
1309 | NULL, NULL); | |
1da177e4 LT |
1310 | if (ACPI_FAILURE(status)) |
1311 | printk(KERN_WARNING " Error changing brightness\n"); | |
1312 | else { | |
4be44fcd LB |
1313 | status = |
1314 | acpi_evaluate_object(NULL, | |
1315 | hotk->methods->brightness_up, | |
1316 | NULL, NULL); | |
1da177e4 | 1317 | if (ACPI_FAILURE(status)) |
4be44fcd | 1318 | printk(KERN_WARNING " Strange, error changing" |
1da177e4 LT |
1319 | " brightness\n"); |
1320 | } | |
1321 | } | |
1322 | ||
578b333b BH |
1323 | asus_hotk_found = 1; |
1324 | ||
42cb8912 KK |
1325 | /* LED display is off by default */ |
1326 | hotk->ledd_status = 0xFFF; | |
1327 | ||
1da177e4 LT |
1328 | end: |
1329 | if (result) { | |
1330 | kfree(hotk); | |
1331 | } | |
1332 | ||
1333 | return result; | |
1334 | } | |
1335 | ||
1da177e4 LT |
1336 | static int asus_hotk_remove(struct acpi_device *device, int type) |
1337 | { | |
1338 | acpi_status status = 0; | |
1339 | ||
1340 | if (!device || !acpi_driver_data(device)) | |
1341 | return -EINVAL; | |
1342 | ||
1343 | status = acpi_remove_notify_handler(hotk->handle, ACPI_SYSTEM_NOTIFY, | |
1344 | asus_hotk_notify); | |
1345 | if (ACPI_FAILURE(status)) | |
1346 | printk(KERN_ERR "Asus ACPI: Error removing notify handler\n"); | |
1347 | ||
1348 | asus_hotk_remove_fs(device); | |
1349 | ||
1350 | kfree(hotk); | |
1351 | ||
1352 | return 0; | |
1353 | } | |
1354 | ||
599a52d1 | 1355 | static struct backlight_ops asus_backlight_data = { |
2039a6eb HM |
1356 | .get_brightness = read_brightness, |
1357 | .update_status = set_brightness_status, | |
2039a6eb HM |
1358 | }; |
1359 | ||
1360 | static void __exit asus_acpi_exit(void) | |
1361 | { | |
1362 | if (asus_backlight_device) | |
1363 | backlight_device_unregister(asus_backlight_device); | |
1364 | ||
1365 | acpi_bus_unregister_driver(&asus_hotk_driver); | |
1366 | remove_proc_entry(PROC_ASUS, acpi_root_dir); | |
1367 | ||
2039a6eb HM |
1368 | return; |
1369 | } | |
1370 | ||
1da177e4 LT |
1371 | static int __init asus_acpi_init(void) |
1372 | { | |
1373 | int result; | |
1374 | ||
1375 | if (acpi_disabled) | |
1376 | return -ENODEV; | |
1377 | ||
1378 | asus_proc_dir = proc_mkdir(PROC_ASUS, acpi_root_dir); | |
1379 | if (!asus_proc_dir) { | |
1380 | printk(KERN_ERR "Asus ACPI: Unable to create /proc entry\n"); | |
1381 | return -ENODEV; | |
1382 | } | |
1383 | asus_proc_dir->owner = THIS_MODULE; | |
1384 | ||
1385 | result = acpi_bus_register_driver(&asus_hotk_driver); | |
578b333b BH |
1386 | if (result < 0) { |
1387 | remove_proc_entry(PROC_ASUS, acpi_root_dir); | |
5e7d8818 | 1388 | return result; |
578b333b BH |
1389 | } |
1390 | ||
1391 | /* | |
1392 | * This is a bit of a kludge. We only want this module loaded | |
1393 | * for ASUS systems, but there's currently no way to probe the | |
1394 | * ACPI namespace for ASUS HIDs. So we just return failure if | |
1395 | * we didn't find one, which will cause the module to be | |
1396 | * unloaded. | |
1397 | */ | |
1398 | if (!asus_hotk_found) { | |
1da177e4 LT |
1399 | acpi_bus_unregister_driver(&asus_hotk_driver); |
1400 | remove_proc_entry(PROC_ASUS, acpi_root_dir); | |
ebd5f2ca | 1401 | return result; |
1da177e4 LT |
1402 | } |
1403 | ||
519ab5f2 | 1404 | asus_backlight_device = backlight_device_register("asus",NULL,NULL, |
2039a6eb HM |
1405 | &asus_backlight_data); |
1406 | if (IS_ERR(asus_backlight_device)) { | |
1407 | printk(KERN_ERR "Could not register asus backlight device\n"); | |
1408 | asus_backlight_device = NULL; | |
1409 | asus_acpi_exit(); | |
1410 | } | |
599a52d1 | 1411 | asus_backlight_device->props.max_brightness = 15; |
1da177e4 | 1412 | |
2039a6eb | 1413 | return 0; |
1da177e4 LT |
1414 | } |
1415 | ||
1416 | module_init(asus_acpi_init); | |
1417 | module_exit(asus_acpi_exit); |