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1da177e4 LT |
1 | /* |
2 | * asus_acpi.c - Asus Laptop ACPI Extras | |
3 | * | |
4 | * | |
5 | * Copyright (C) 2002, 2003, 2004 Julien Lerouge, Karol Kozimor | |
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. | |
29 | * | |
30 | * TODO: | |
31 | * add Fn key status | |
32 | * Add mode selection on module loading (parameter) -> still necessary? | |
33 | * Complete display switching -- may require dirty hacks or calling _DOS? | |
34 | */ | |
35 | ||
36 | #include <linux/kernel.h> | |
37 | #include <linux/module.h> | |
38 | #include <linux/init.h> | |
39 | #include <linux/types.h> | |
40 | #include <linux/proc_fs.h> | |
41 | #include <acpi/acpi_drivers.h> | |
42 | #include <acpi/acpi_bus.h> | |
43 | #include <asm/uaccess.h> | |
44 | ||
45 | #define ASUS_ACPI_VERSION "0.29" | |
46 | ||
47 | #define PROC_ASUS "asus" //the directory | |
48 | #define PROC_MLED "mled" | |
49 | #define PROC_WLED "wled" | |
50 | #define PROC_TLED "tled" | |
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 | */ | |
70 | #define MLED_ON 0x01 //is MLED ON ? | |
71 | #define WLED_ON 0x02 | |
72 | #define TLED_ON 0x04 | |
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 | |
95 | char *mt_lcd_switch; //method to turn LCD ON/OFF_________A | |
96 | char *lcd_status; //node to read LCD panel state______A | |
97 | char *brightness_up; //method to set brightness up_______A | |
98 | char *brightness_down; //guess what ?______________________A | |
99 | char *brightness_set; //method to set absolute brightness_R | |
100 | char *brightness_get; //method to get absolute brightness_R | |
101 | char *brightness_status; //node to get brightness____________A | |
102 | char *display_set; //method to set video output________R | |
103 | char *display_get; //method to get video output________R | |
1da177e4 LT |
104 | }; |
105 | ||
106 | /* | |
107 | * This is the main structure, we can use it to store anything interesting | |
108 | * about the hotk device | |
109 | */ | |
110 | struct asus_hotk { | |
4be44fcd LB |
111 | struct acpi_device *device; //the device we are in |
112 | acpi_handle handle; //the handle of the hotk device | |
113 | char status; //status of the hotk, for LEDs, ... | |
114 | struct model_data *methods; //methods available on the laptop | |
115 | u8 brightness; //brightness level | |
1da177e4 | 116 | enum { |
4be44fcd LB |
117 | A1x = 0, //A1340D, A1300F |
118 | A2x, //A2500H | |
119 | D1x, //D1 | |
120 | L2D, //L2000D | |
121 | L3C, //L3800C | |
122 | L3D, //L3400D | |
123 | L3H, //L3H, but also L2000E | |
124 | L4R, //L4500R | |
125 | L5x, //L5800C | |
126 | L8L, //L8400L | |
127 | M1A, //M1300A | |
128 | M2E, //M2400E, L4400L | |
129 | M6N, //M6800N | |
130 | M6R, //M6700R | |
131 | P30, //Samsung P30 | |
132 | S1x, //S1300A, but also L1400B and M2400A (L84F) | |
133 | S2x, //S200 (J1 reported), Victor MP-XP7210 | |
134 | xxN, //M2400N, M3700N, M5200N, S1300N, S5200N, W1OOON | |
135 | //(Centrino) | |
1da177e4 | 136 | END_MODEL |
4be44fcd LB |
137 | } model; //Models currently supported |
138 | u16 event_count[128]; //count for each event TODO make this better | |
1da177e4 LT |
139 | }; |
140 | ||
141 | /* Here we go */ | |
142 | #define A1x_PREFIX "\\_SB.PCI0.ISA.EC0." | |
143 | #define L3C_PREFIX "\\_SB.PCI0.PX40.ECD0." | |
144 | #define M1A_PREFIX "\\_SB.PCI0.PX40.EC0." | |
145 | #define P30_PREFIX "\\_SB.PCI0.LPCB.EC0." | |
146 | #define S1x_PREFIX "\\_SB.PCI0.PX40." | |
147 | #define S2x_PREFIX A1x_PREFIX | |
148 | #define xxN_PREFIX "\\_SB.PCI0.SBRG.EC0." | |
149 | ||
150 | static struct model_data model_conf[END_MODEL] = { | |
4be44fcd | 151 | /* |
1da177e4 LT |
152 | * Those pathnames are relative to the HOTK / ATKD device : |
153 | * - mt_mled | |
154 | * - mt_wled | |
155 | * - brightness_set | |
156 | * - brightness_get | |
157 | * - display_set | |
158 | * - display_get | |
159 | * | |
160 | * TODO I have seen a SWBX and AIBX method on some models, like L1400B, | |
161 | * it seems to be a kind of switch, but what for ? | |
162 | * | |
163 | */ | |
164 | ||
165 | { | |
4be44fcd LB |
166 | .name = "A1x", |
167 | .mt_mled = "MLED", | |
168 | .mled_status = "\\MAIL", | |
169 | .mt_lcd_switch = A1x_PREFIX "_Q10", | |
170 | .lcd_status = "\\BKLI", | |
171 | .brightness_up = A1x_PREFIX "_Q0E", | |
172 | .brightness_down = A1x_PREFIX "_Q0F"}, | |
1da177e4 LT |
173 | |
174 | { | |
4be44fcd LB |
175 | .name = "A2x", |
176 | .mt_mled = "MLED", | |
177 | .mt_wled = "WLED", | |
178 | .wled_status = "\\SG66", | |
179 | .mt_lcd_switch = "\\Q10", | |
180 | .lcd_status = "\\BAOF", | |
181 | .brightness_set = "SPLV", | |
182 | .brightness_get = "GPLV", | |
183 | .display_set = "SDSP", | |
184 | .display_get = "\\INFB"}, | |
1da177e4 LT |
185 | |
186 | { | |
4be44fcd LB |
187 | .name = "D1x", |
188 | .mt_mled = "MLED", | |
189 | .mt_lcd_switch = "\\Q0D", | |
190 | .lcd_status = "\\GP11", | |
191 | .brightness_up = "\\Q0C", | |
192 | .brightness_down = "\\Q0B", | |
193 | .brightness_status = "\\BLVL", | |
194 | .display_set = "SDSP", | |
195 | .display_get = "\\INFB"}, | |
1da177e4 LT |
196 | |
197 | { | |
4be44fcd LB |
198 | .name = "L2D", |
199 | .mt_mled = "MLED", | |
200 | .mled_status = "\\SGP6", | |
201 | .mt_wled = "WLED", | |
202 | .wled_status = "\\RCP3", | |
203 | .mt_lcd_switch = "\\Q10", | |
204 | .lcd_status = "\\SGP0", | |
205 | .brightness_up = "\\Q0E", | |
206 | .brightness_down = "\\Q0F", | |
207 | .display_set = "SDSP", | |
208 | .display_get = "\\INFB"}, | |
1da177e4 LT |
209 | |
210 | { | |
4be44fcd LB |
211 | .name = "L3C", |
212 | .mt_mled = "MLED", | |
213 | .mt_wled = "WLED", | |
214 | .mt_lcd_switch = L3C_PREFIX "_Q10", | |
215 | .lcd_status = "\\GL32", | |
216 | .brightness_set = "SPLV", | |
217 | .brightness_get = "GPLV", | |
218 | .display_set = "SDSP", | |
219 | .display_get = "\\_SB.PCI0.PCI1.VGAC.NMAP"}, | |
1da177e4 LT |
220 | |
221 | { | |
4be44fcd LB |
222 | .name = "L3D", |
223 | .mt_mled = "MLED", | |
224 | .mled_status = "\\MALD", | |
225 | .mt_wled = "WLED", | |
226 | .mt_lcd_switch = "\\Q10", | |
227 | .lcd_status = "\\BKLG", | |
228 | .brightness_set = "SPLV", | |
229 | .brightness_get = "GPLV", | |
230 | .display_set = "SDSP", | |
231 | .display_get = "\\INFB"}, | |
1da177e4 LT |
232 | |
233 | { | |
4be44fcd LB |
234 | .name = "L3H", |
235 | .mt_mled = "MLED", | |
236 | .mt_wled = "WLED", | |
237 | .mt_lcd_switch = "EHK", | |
238 | .lcd_status = "\\_SB.PCI0.PM.PBC", | |
239 | .brightness_set = "SPLV", | |
240 | .brightness_get = "GPLV", | |
241 | .display_set = "SDSP", | |
242 | .display_get = "\\INFB"}, | |
1da177e4 LT |
243 | |
244 | { | |
4be44fcd LB |
245 | .name = "L4R", |
246 | .mt_mled = "MLED", | |
247 | .mt_wled = "WLED", | |
248 | .wled_status = "\\_SB.PCI0.SBRG.SG13", | |
249 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
250 | .lcd_status = "\\_SB.PCI0.SBSM.SEO4", | |
251 | .brightness_set = "SPLV", | |
252 | .brightness_get = "GPLV", | |
253 | .display_set = "SDSP", | |
254 | .display_get = "\\_SB.PCI0.P0P1.VGA.GETD"}, | |
1da177e4 LT |
255 | |
256 | { | |
4be44fcd LB |
257 | .name = "L5x", |
258 | .mt_mled = "MLED", | |
1da177e4 | 259 | /* WLED present, but not controlled by ACPI */ |
4be44fcd LB |
260 | .mt_tled = "TLED", |
261 | .mt_lcd_switch = "\\Q0D", | |
262 | .lcd_status = "\\BAOF", | |
263 | .brightness_set = "SPLV", | |
264 | .brightness_get = "GPLV", | |
265 | .display_set = "SDSP", | |
266 | .display_get = "\\INFB"}, | |
1da177e4 LT |
267 | |
268 | { | |
4be44fcd | 269 | .name = "L8L" |
1da177e4 | 270 | /* No features, but at least support the hotkeys */ |
4be44fcd | 271 | }, |
1da177e4 LT |
272 | |
273 | { | |
4be44fcd LB |
274 | .name = "M1A", |
275 | .mt_mled = "MLED", | |
276 | .mt_lcd_switch = M1A_PREFIX "Q10", | |
277 | .lcd_status = "\\PNOF", | |
278 | .brightness_up = M1A_PREFIX "Q0E", | |
279 | .brightness_down = M1A_PREFIX "Q0F", | |
280 | .brightness_status = "\\BRIT", | |
281 | .display_set = "SDSP", | |
282 | .display_get = "\\INFB"}, | |
1da177e4 LT |
283 | |
284 | { | |
4be44fcd LB |
285 | .name = "M2E", |
286 | .mt_mled = "MLED", | |
287 | .mt_wled = "WLED", | |
288 | .mt_lcd_switch = "\\Q10", | |
289 | .lcd_status = "\\GP06", | |
290 | .brightness_set = "SPLV", | |
291 | .brightness_get = "GPLV", | |
292 | .display_set = "SDSP", | |
293 | .display_get = "\\INFB"}, | |
1da177e4 LT |
294 | |
295 | { | |
4be44fcd LB |
296 | .name = "M6N", |
297 | .mt_mled = "MLED", | |
298 | .mt_wled = "WLED", | |
299 | .wled_status = "\\_SB.PCI0.SBRG.SG13", | |
300 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
301 | .lcd_status = "\\_SB.BKLT", | |
302 | .brightness_set = "SPLV", | |
303 | .brightness_get = "GPLV", | |
304 | .display_set = "SDSP", | |
bb84db93 | 305 | .display_get = "\\_SB.PCI0.P0P1.VGA.GETD"}, |
1da177e4 | 306 | { |
4be44fcd LB |
307 | .name = "M6R", |
308 | .mt_mled = "MLED", | |
309 | .mt_wled = "WLED", | |
310 | .mt_lcd_switch = xxN_PREFIX "_Q10", | |
311 | .lcd_status = "\\_SB.PCI0.SBSM.SEO4", | |
312 | .brightness_set = "SPLV", | |
313 | .brightness_get = "GPLV", | |
314 | .display_set = "SDSP", | |
315 | .display_get = "\\SSTE"}, | |
1da177e4 LT |
316 | |
317 | { | |
4be44fcd LB |
318 | .name = "P30", |
319 | .mt_wled = "WLED", | |
320 | .mt_lcd_switch = P30_PREFIX "_Q0E", | |
321 | .lcd_status = "\\BKLT", | |
322 | .brightness_up = P30_PREFIX "_Q68", | |
323 | .brightness_down = P30_PREFIX "_Q69", | |
324 | .brightness_get = "GPLV", | |
325 | .display_set = "SDSP", | |
326 | .display_get = "\\DNXT"}, | |
1da177e4 LT |
327 | |
328 | { | |
4be44fcd LB |
329 | .name = "S1x", |
330 | .mt_mled = "MLED", | |
331 | .mled_status = "\\EMLE", | |
332 | .mt_wled = "WLED", | |
333 | .mt_lcd_switch = S1x_PREFIX "Q10", | |
334 | .lcd_status = "\\PNOF", | |
335 | .brightness_set = "SPLV", | |
336 | .brightness_get = "GPLV"}, | |
1da177e4 LT |
337 | |
338 | { | |
4be44fcd LB |
339 | .name = "S2x", |
340 | .mt_mled = "MLED", | |
341 | .mled_status = "\\MAIL", | |
342 | .mt_lcd_switch = S2x_PREFIX "_Q10", | |
343 | .lcd_status = "\\BKLI", | |
344 | .brightness_up = S2x_PREFIX "_Q0B", | |
345 | .brightness_down = S2x_PREFIX "_Q0A"}, | |
1da177e4 LT |
346 | |
347 | { | |
4be44fcd LB |
348 | .name = "xxN", |
349 | .mt_mled = "MLED", | |
1da177e4 | 350 | /* WLED present, but not controlled by ACPI */ |
4be44fcd LB |
351 | .mt_lcd_switch = xxN_PREFIX "_Q10", |
352 | .lcd_status = "\\BKLT", | |
353 | .brightness_set = "SPLV", | |
354 | .brightness_get = "GPLV", | |
355 | .display_set = "SDSP", | |
356 | .display_get = "\\ADVG"} | |
1da177e4 LT |
357 | }; |
358 | ||
359 | /* procdir we use */ | |
360 | static struct proc_dir_entry *asus_proc_dir; | |
361 | ||
362 | /* | |
363 | * This header is made available to allow proper configuration given model, | |
364 | * revision number , ... this info cannot go in struct asus_hotk because it is | |
365 | * available before the hotk | |
366 | */ | |
367 | static struct acpi_table_header *asus_info; | |
368 | ||
369 | /* The actual device the driver binds to */ | |
370 | static struct asus_hotk *hotk; | |
371 | ||
372 | /* | |
373 | * The hotkey driver declaration | |
374 | */ | |
375 | static int asus_hotk_add(struct acpi_device *device); | |
376 | static int asus_hotk_remove(struct acpi_device *device, int type); | |
377 | static struct acpi_driver asus_hotk_driver = { | |
4be44fcd LB |
378 | .name = ACPI_HOTK_NAME, |
379 | .class = ACPI_HOTK_CLASS, | |
380 | .ids = ACPI_HOTK_HID, | |
381 | .ops = { | |
382 | .add = asus_hotk_add, | |
383 | .remove = asus_hotk_remove, | |
384 | }, | |
1da177e4 LT |
385 | }; |
386 | ||
387 | /* | |
388 | * This function evaluates an ACPI method, given an int as parameter, the | |
389 | * method is searched within the scope of the handle, can be NULL. The output | |
390 | * of the method is written is output, which can also be NULL | |
391 | * | |
392 | * returns 1 if write is successful, 0 else. | |
393 | */ | |
394 | static int write_acpi_int(acpi_handle handle, const char *method, int val, | |
395 | struct acpi_buffer *output) | |
396 | { | |
397 | struct acpi_object_list params; //list of input parameters (an int here) | |
398 | union acpi_object in_obj; //the only param we use | |
399 | acpi_status status; | |
400 | ||
401 | params.count = 1; | |
402 | params.pointer = &in_obj; | |
403 | in_obj.type = ACPI_TYPE_INTEGER; | |
404 | in_obj.integer.value = val; | |
405 | ||
4be44fcd | 406 | status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); |
1da177e4 LT |
407 | return (status == AE_OK); |
408 | } | |
409 | ||
1da177e4 LT |
410 | static int read_acpi_int(acpi_handle handle, const char *method, int *val) |
411 | { | |
412 | struct acpi_buffer output; | |
413 | union acpi_object out_obj; | |
414 | acpi_status status; | |
415 | ||
416 | output.length = sizeof(out_obj); | |
417 | output.pointer = &out_obj; | |
418 | ||
4be44fcd | 419 | status = acpi_evaluate_object(handle, (char *)method, NULL, &output); |
1da177e4 LT |
420 | *val = out_obj.integer.value; |
421 | return (status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER); | |
422 | } | |
423 | ||
424 | /* | |
425 | * We write our info in page, we begin at offset off and cannot write more | |
426 | * than count bytes. We set eof to 1 if we handle those 2 values. We return the | |
427 | * number of bytes written in page | |
428 | */ | |
429 | static int | |
430 | proc_read_info(char *page, char **start, off_t off, int count, int *eof, | |
4be44fcd | 431 | void *data) |
1da177e4 LT |
432 | { |
433 | int len = 0; | |
434 | int temp; | |
435 | char buf[16]; //enough for all info | |
436 | /* | |
437 | * We use the easy way, we don't care of off and count, so we don't set eof | |
438 | * to 1 | |
439 | */ | |
440 | ||
441 | len += sprintf(page, ACPI_HOTK_NAME " " ASUS_ACPI_VERSION "\n"); | |
4be44fcd | 442 | len += sprintf(page + len, "Model reference : %s\n", |
1da177e4 LT |
443 | hotk->methods->name); |
444 | /* | |
445 | * The SFUN method probably allows the original driver to get the list | |
446 | * of features supported by a given model. For now, 0x0100 or 0x0800 | |
447 | * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. | |
448 | * The significance of others is yet to be found. | |
449 | */ | |
450 | if (read_acpi_int(hotk->handle, "SFUN", &temp)) | |
4be44fcd LB |
451 | len += |
452 | sprintf(page + len, "SFUN value : 0x%04x\n", temp); | |
1da177e4 LT |
453 | /* |
454 | * Another value for userspace: the ASYM method returns 0x02 for | |
455 | * battery low and 0x04 for battery critical, its readings tend to be | |
456 | * more accurate than those provided by _BST. | |
457 | * Note: since not all the laptops provide this method, errors are | |
458 | * silently ignored. | |
459 | */ | |
460 | if (read_acpi_int(hotk->handle, "ASYM", &temp)) | |
4be44fcd LB |
461 | len += |
462 | sprintf(page + len, "ASYM value : 0x%04x\n", temp); | |
1da177e4 LT |
463 | if (asus_info) { |
464 | snprintf(buf, 16, "%d", asus_info->length); | |
465 | len += sprintf(page + len, "DSDT length : %s\n", buf); | |
466 | snprintf(buf, 16, "%d", asus_info->checksum); | |
467 | len += sprintf(page + len, "DSDT checksum : %s\n", buf); | |
468 | snprintf(buf, 16, "%d", asus_info->revision); | |
469 | len += sprintf(page + len, "DSDT revision : %s\n", buf); | |
470 | snprintf(buf, 7, "%s", asus_info->oem_id); | |
471 | len += sprintf(page + len, "OEM id : %s\n", buf); | |
472 | snprintf(buf, 9, "%s", asus_info->oem_table_id); | |
473 | len += sprintf(page + len, "OEM table id : %s\n", buf); | |
474 | snprintf(buf, 16, "%x", asus_info->oem_revision); | |
475 | len += sprintf(page + len, "OEM revision : 0x%s\n", buf); | |
476 | snprintf(buf, 5, "%s", asus_info->asl_compiler_id); | |
477 | len += sprintf(page + len, "ASL comp vendor id : %s\n", buf); | |
478 | snprintf(buf, 16, "%x", asus_info->asl_compiler_revision); | |
479 | len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf); | |
480 | } | |
481 | ||
482 | return len; | |
483 | } | |
484 | ||
1da177e4 LT |
485 | /* |
486 | * /proc handlers | |
487 | * We write our info in page, we begin at offset off and cannot write more | |
488 | * than count bytes. We set eof to 1 if we handle those 2 values. We return the | |
489 | * number of bytes written in page | |
490 | */ | |
491 | ||
492 | /* Generic LED functions */ | |
4be44fcd | 493 | static int read_led(const char *ledname, int ledmask) |
1da177e4 LT |
494 | { |
495 | if (ledname) { | |
496 | int led_status; | |
497 | ||
498 | if (read_acpi_int(NULL, ledname, &led_status)) | |
499 | return led_status; | |
500 | else | |
501 | printk(KERN_WARNING "Asus ACPI: Error reading LED " | |
502 | "status\n"); | |
503 | } | |
504 | return (hotk->status & ledmask) ? 1 : 0; | |
505 | } | |
506 | ||
4be44fcd | 507 | static int parse_arg(const char __user * buf, unsigned long count, int *val) |
1da177e4 LT |
508 | { |
509 | char s[32]; | |
510 | if (!count) | |
511 | return 0; | |
512 | if (count > 31) | |
513 | return -EINVAL; | |
514 | if (copy_from_user(s, buf, count)) | |
515 | return -EFAULT; | |
516 | s[count] = 0; | |
517 | if (sscanf(s, "%i", val) != 1) | |
518 | return -EINVAL; | |
519 | return count; | |
520 | } | |
521 | ||
522 | /* FIXME: kill extraneous args so it can be called independently */ | |
523 | static int | |
4be44fcd LB |
524 | write_led(const char __user * buffer, unsigned long count, |
525 | char *ledname, int ledmask, int invert) | |
1da177e4 LT |
526 | { |
527 | int value; | |
528 | int led_out = 0; | |
529 | ||
530 | count = parse_arg(buffer, count, &value); | |
531 | if (count > 0) | |
532 | led_out = value ? 1 : 0; | |
533 | ||
534 | hotk->status = | |
535 | (led_out) ? (hotk->status | ledmask) : (hotk->status & ~ledmask); | |
536 | ||
4be44fcd | 537 | if (invert) /* invert target value */ |
1da177e4 LT |
538 | led_out = !led_out & 0x1; |
539 | ||
540 | if (!write_acpi_int(hotk->handle, ledname, led_out, NULL)) | |
4be44fcd LB |
541 | printk(KERN_WARNING "Asus ACPI: LED (%s) write failed\n", |
542 | ledname); | |
1da177e4 LT |
543 | |
544 | return count; | |
545 | } | |
546 | ||
1da177e4 LT |
547 | /* |
548 | * Proc handlers for MLED | |
549 | */ | |
550 | static int | |
551 | proc_read_mled(char *page, char **start, off_t off, int count, int *eof, | |
552 | void *data) | |
553 | { | |
4be44fcd LB |
554 | return sprintf(page, "%d\n", |
555 | read_led(hotk->methods->mled_status, MLED_ON)); | |
1da177e4 LT |
556 | } |
557 | ||
1da177e4 | 558 | static int |
4be44fcd | 559 | proc_write_mled(struct file *file, const char __user * buffer, |
1da177e4 LT |
560 | unsigned long count, void *data) |
561 | { | |
562 | return write_led(buffer, count, hotk->methods->mt_mled, MLED_ON, 1); | |
563 | } | |
564 | ||
565 | /* | |
566 | * Proc handlers for WLED | |
567 | */ | |
568 | static int | |
569 | proc_read_wled(char *page, char **start, off_t off, int count, int *eof, | |
570 | void *data) | |
571 | { | |
4be44fcd LB |
572 | return sprintf(page, "%d\n", |
573 | read_led(hotk->methods->wled_status, WLED_ON)); | |
1da177e4 LT |
574 | } |
575 | ||
576 | static int | |
4be44fcd | 577 | proc_write_wled(struct file *file, const char __user * buffer, |
1da177e4 LT |
578 | unsigned long count, void *data) |
579 | { | |
580 | return write_led(buffer, count, hotk->methods->mt_wled, WLED_ON, 0); | |
581 | } | |
582 | ||
583 | /* | |
584 | * Proc handlers for TLED | |
585 | */ | |
586 | static int | |
587 | proc_read_tled(char *page, char **start, off_t off, int count, int *eof, | |
588 | void *data) | |
589 | { | |
4be44fcd LB |
590 | return sprintf(page, "%d\n", |
591 | read_led(hotk->methods->tled_status, TLED_ON)); | |
1da177e4 LT |
592 | } |
593 | ||
594 | static int | |
4be44fcd | 595 | proc_write_tled(struct file *file, const char __user * buffer, |
1da177e4 LT |
596 | unsigned long count, void *data) |
597 | { | |
598 | return write_led(buffer, count, hotk->methods->mt_tled, TLED_ON, 0); | |
599 | } | |
600 | ||
1da177e4 LT |
601 | static int get_lcd_state(void) |
602 | { | |
603 | int lcd = 0; | |
604 | ||
605 | if (hotk->model != L3H) { | |
4be44fcd | 606 | /* We don't have to check anything if we are here */ |
1da177e4 | 607 | if (!read_acpi_int(NULL, hotk->methods->lcd_status, &lcd)) |
4be44fcd LB |
608 | printk(KERN_WARNING |
609 | "Asus ACPI: Error reading LCD status\n"); | |
610 | ||
1da177e4 LT |
611 | if (hotk->model == L2D) |
612 | lcd = ~lcd; | |
4be44fcd | 613 | } else { /* L3H and the like have to be handled differently */ |
1da177e4 LT |
614 | acpi_status status = 0; |
615 | struct acpi_object_list input; | |
616 | union acpi_object mt_params[2]; | |
617 | struct acpi_buffer output; | |
618 | union acpi_object out_obj; | |
4be44fcd | 619 | |
1da177e4 LT |
620 | input.count = 2; |
621 | input.pointer = mt_params; | |
622 | /* Note: the following values are partly guessed up, but | |
623 | otherwise they seem to work */ | |
624 | mt_params[0].type = ACPI_TYPE_INTEGER; | |
625 | mt_params[0].integer.value = 0x02; | |
626 | mt_params[1].type = ACPI_TYPE_INTEGER; | |
627 | mt_params[1].integer.value = 0x02; | |
628 | ||
629 | output.length = sizeof(out_obj); | |
630 | output.pointer = &out_obj; | |
4be44fcd LB |
631 | |
632 | status = | |
633 | acpi_evaluate_object(NULL, hotk->methods->lcd_status, | |
634 | &input, &output); | |
1da177e4 LT |
635 | if (status != AE_OK) |
636 | return -1; | |
637 | if (out_obj.type == ACPI_TYPE_INTEGER) | |
638 | /* That's what the AML code does */ | |
639 | lcd = out_obj.integer.value >> 8; | |
640 | } | |
4be44fcd | 641 | |
1da177e4 LT |
642 | return (lcd & 1); |
643 | } | |
644 | ||
645 | static int set_lcd_state(int value) | |
646 | { | |
647 | int lcd = 0; | |
648 | acpi_status status = 0; | |
649 | ||
650 | lcd = value ? 1 : 0; | |
651 | if (lcd != get_lcd_state()) { | |
652 | /* switch */ | |
653 | if (hotk->model != L3H) { | |
654 | status = | |
4be44fcd LB |
655 | acpi_evaluate_object(NULL, |
656 | hotk->methods->mt_lcd_switch, | |
1da177e4 | 657 | NULL, NULL); |
4be44fcd LB |
658 | } else { /* L3H and the like have to be handled differently */ |
659 | if (!write_acpi_int | |
660 | (hotk->handle, hotk->methods->mt_lcd_switch, 0x07, | |
661 | NULL)) | |
1da177e4 LT |
662 | status = AE_ERROR; |
663 | /* L3H's AML executes EHK (0x07) upon Fn+F7 keypress, | |
664 | the exact behaviour is simulated here */ | |
665 | } | |
666 | if (ACPI_FAILURE(status)) | |
667 | printk(KERN_WARNING "Asus ACPI: Error switching LCD\n"); | |
668 | } | |
669 | return 0; | |
670 | ||
671 | } | |
672 | ||
673 | static int | |
674 | proc_read_lcd(char *page, char **start, off_t off, int count, int *eof, | |
675 | void *data) | |
676 | { | |
677 | return sprintf(page, "%d\n", get_lcd_state()); | |
678 | } | |
679 | ||
1da177e4 | 680 | static int |
4be44fcd | 681 | proc_write_lcd(struct file *file, const char __user * buffer, |
1da177e4 LT |
682 | unsigned long count, void *data) |
683 | { | |
684 | int value; | |
4be44fcd | 685 | |
1da177e4 LT |
686 | count = parse_arg(buffer, count, &value); |
687 | if (count > 0) | |
688 | set_lcd_state(value); | |
689 | return count; | |
690 | } | |
691 | ||
1da177e4 LT |
692 | static int read_brightness(void) |
693 | { | |
694 | int value; | |
4be44fcd LB |
695 | |
696 | if (hotk->methods->brightness_get) { /* SPLV/GPLV laptop */ | |
697 | if (!read_acpi_int(hotk->handle, hotk->methods->brightness_get, | |
1da177e4 | 698 | &value)) |
4be44fcd LB |
699 | printk(KERN_WARNING |
700 | "Asus ACPI: Error reading brightness\n"); | |
701 | } else if (hotk->methods->brightness_status) { /* For D1 for example */ | |
702 | if (!read_acpi_int(NULL, hotk->methods->brightness_status, | |
1da177e4 | 703 | &value)) |
4be44fcd LB |
704 | printk(KERN_WARNING |
705 | "Asus ACPI: Error reading brightness\n"); | |
706 | } else /* No GPLV method */ | |
1da177e4 LT |
707 | value = hotk->brightness; |
708 | return value; | |
709 | } | |
710 | ||
711 | /* | |
712 | * Change the brightness level | |
713 | */ | |
714 | static void set_brightness(int value) | |
715 | { | |
716 | acpi_status status = 0; | |
717 | ||
718 | /* SPLV laptop */ | |
4be44fcd LB |
719 | if (hotk->methods->brightness_set) { |
720 | if (!write_acpi_int(hotk->handle, hotk->methods->brightness_set, | |
1da177e4 | 721 | value, NULL)) |
4be44fcd LB |
722 | printk(KERN_WARNING |
723 | "Asus ACPI: Error changing brightness\n"); | |
1da177e4 LT |
724 | return; |
725 | } | |
726 | ||
727 | /* No SPLV method if we are here, act as appropriate */ | |
728 | value -= read_brightness(); | |
729 | while (value != 0) { | |
4be44fcd LB |
730 | status = acpi_evaluate_object(NULL, (value > 0) ? |
731 | hotk->methods->brightness_up : | |
1da177e4 LT |
732 | hotk->methods->brightness_down, |
733 | NULL, NULL); | |
734 | (value > 0) ? value-- : value++; | |
735 | if (ACPI_FAILURE(status)) | |
4be44fcd LB |
736 | printk(KERN_WARNING |
737 | "Asus ACPI: Error changing brightness\n"); | |
1da177e4 LT |
738 | } |
739 | return; | |
740 | } | |
741 | ||
742 | static int | |
743 | proc_read_brn(char *page, char **start, off_t off, int count, int *eof, | |
744 | void *data) | |
745 | { | |
746 | return sprintf(page, "%d\n", read_brightness()); | |
747 | } | |
748 | ||
749 | static int | |
4be44fcd | 750 | proc_write_brn(struct file *file, const char __user * buffer, |
1da177e4 LT |
751 | unsigned long count, void *data) |
752 | { | |
753 | int value; | |
754 | ||
755 | count = parse_arg(buffer, count, &value); | |
756 | if (count > 0) { | |
757 | value = (0 < value) ? ((15 < value) ? 15 : value) : 0; | |
4be44fcd | 758 | /* 0 <= value <= 15 */ |
1da177e4 LT |
759 | set_brightness(value); |
760 | } else if (count < 0) { | |
761 | printk(KERN_WARNING "Asus ACPI: Error reading user input\n"); | |
762 | } | |
763 | ||
764 | return count; | |
765 | } | |
766 | ||
767 | static void set_display(int value) | |
768 | { | |
769 | /* no sanity check needed for now */ | |
4be44fcd | 770 | if (!write_acpi_int(hotk->handle, hotk->methods->display_set, |
1da177e4 LT |
771 | value, NULL)) |
772 | printk(KERN_WARNING "Asus ACPI: Error setting display\n"); | |
773 | return; | |
774 | } | |
775 | ||
776 | /* | |
777 | * Now, *this* one could be more user-friendly, but so far, no-one has | |
778 | * complained. The significance of bits is the same as in proc_write_disp() | |
779 | */ | |
780 | static int | |
781 | proc_read_disp(char *page, char **start, off_t off, int count, int *eof, | |
4be44fcd | 782 | void *data) |
1da177e4 LT |
783 | { |
784 | int value = 0; | |
4be44fcd | 785 | |
1da177e4 | 786 | if (!read_acpi_int(hotk->handle, hotk->methods->display_get, &value)) |
4be44fcd LB |
787 | printk(KERN_WARNING |
788 | "Asus ACPI: Error reading display status\n"); | |
789 | value &= 0x07; /* needed for some models, shouldn't hurt others */ | |
1da177e4 LT |
790 | return sprintf(page, "%d\n", value); |
791 | } | |
792 | ||
793 | /* | |
794 | * Experimental support for display switching. As of now: 1 should activate | |
795 | * the LCD output, 2 should do for CRT, and 4 for TV-Out. Any combination | |
796 | * (bitwise) of these will suffice. I never actually tested 3 displays hooked up | |
797 | * simultaneously, so be warned. See the acpi4asus README for more info. | |
798 | */ | |
799 | static int | |
4be44fcd LB |
800 | proc_write_disp(struct file *file, const char __user * buffer, |
801 | unsigned long count, void *data) | |
1da177e4 LT |
802 | { |
803 | int value; | |
804 | ||
805 | count = parse_arg(buffer, count, &value); | |
806 | if (count > 0) | |
807 | set_display(value); | |
808 | else if (count < 0) | |
809 | printk(KERN_WARNING "Asus ACPI: Error reading user input\n"); | |
810 | ||
811 | return count; | |
812 | } | |
813 | ||
4be44fcd LB |
814 | typedef int (proc_readfunc) (char *page, char **start, off_t off, int count, |
815 | int *eof, void *data); | |
816 | typedef int (proc_writefunc) (struct file * file, const char __user * buffer, | |
817 | unsigned long count, void *data); | |
1da177e4 LT |
818 | |
819 | static int | |
200739c1 | 820 | asus_proc_add(char *name, proc_writefunc * writefunc, |
4be44fcd LB |
821 | proc_readfunc * readfunc, mode_t mode, |
822 | struct acpi_device *device) | |
1da177e4 | 823 | { |
4be44fcd LB |
824 | struct proc_dir_entry *proc = |
825 | create_proc_entry(name, mode, acpi_device_dir(device)); | |
826 | if (!proc) { | |
1da177e4 LT |
827 | printk(KERN_WARNING " Unable to create %s fs entry\n", name); |
828 | return -1; | |
829 | } | |
830 | proc->write_proc = writefunc; | |
831 | proc->read_proc = readfunc; | |
832 | proc->data = acpi_driver_data(device); | |
833 | proc->owner = THIS_MODULE; | |
834 | proc->uid = asus_uid; | |
835 | proc->gid = asus_gid; | |
836 | return 0; | |
837 | } | |
838 | ||
200739c1 | 839 | static int asus_hotk_add_fs(struct acpi_device *device) |
1da177e4 LT |
840 | { |
841 | struct proc_dir_entry *proc; | |
842 | mode_t mode; | |
4be44fcd | 843 | |
1da177e4 LT |
844 | /* |
845 | * If parameter uid or gid is not changed, keep the default setting for | |
846 | * our proc entries (-rw-rw-rw-) else, it means we care about security, | |
847 | * and then set to -rw-rw---- | |
848 | */ | |
849 | ||
4be44fcd | 850 | if ((asus_uid == 0) && (asus_gid == 0)) { |
1da177e4 LT |
851 | mode = S_IFREG | S_IRUGO | S_IWUGO; |
852 | } else { | |
853 | mode = S_IFREG | S_IRUSR | S_IRGRP | S_IWUSR | S_IWGRP; | |
aea19aa0 KK |
854 | printk(KERN_WARNING " asus_uid and asus_gid parameters are " |
855 | "deprecated, use chown and chmod instead!\n"); | |
1da177e4 LT |
856 | } |
857 | ||
858 | acpi_device_dir(device) = asus_proc_dir; | |
859 | if (!acpi_device_dir(device)) | |
860 | return -ENODEV; | |
861 | ||
862 | proc = create_proc_entry(PROC_INFO, mode, acpi_device_dir(device)); | |
863 | if (proc) { | |
864 | proc->read_proc = proc_read_info; | |
865 | proc->data = acpi_driver_data(device); | |
866 | proc->owner = THIS_MODULE; | |
867 | proc->uid = asus_uid; | |
868 | proc->gid = asus_gid; | |
869 | } else { | |
870 | printk(KERN_WARNING " Unable to create " PROC_INFO | |
871 | " fs entry\n"); | |
872 | } | |
873 | ||
874 | if (hotk->methods->mt_wled) { | |
4be44fcd LB |
875 | asus_proc_add(PROC_WLED, &proc_write_wled, &proc_read_wled, |
876 | mode, device); | |
1da177e4 LT |
877 | } |
878 | ||
879 | if (hotk->methods->mt_mled) { | |
4be44fcd LB |
880 | asus_proc_add(PROC_MLED, &proc_write_mled, &proc_read_mled, |
881 | mode, device); | |
1da177e4 LT |
882 | } |
883 | ||
884 | if (hotk->methods->mt_tled) { | |
4be44fcd LB |
885 | asus_proc_add(PROC_TLED, &proc_write_tled, &proc_read_tled, |
886 | mode, device); | |
1da177e4 LT |
887 | } |
888 | ||
889 | /* | |
890 | * We need both read node and write method as LCD switch is also accessible | |
891 | * from keyboard | |
892 | */ | |
893 | if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) { | |
4be44fcd LB |
894 | asus_proc_add(PROC_LCD, &proc_write_lcd, &proc_read_lcd, mode, |
895 | device); | |
1da177e4 | 896 | } |
4be44fcd | 897 | |
1da177e4 LT |
898 | if ((hotk->methods->brightness_up && hotk->methods->brightness_down) || |
899 | (hotk->methods->brightness_get && hotk->methods->brightness_set)) { | |
4be44fcd LB |
900 | asus_proc_add(PROC_BRN, &proc_write_brn, &proc_read_brn, mode, |
901 | device); | |
1da177e4 LT |
902 | } |
903 | ||
904 | if (hotk->methods->display_set) { | |
4be44fcd LB |
905 | asus_proc_add(PROC_DISP, &proc_write_disp, &proc_read_disp, |
906 | mode, device); | |
1da177e4 LT |
907 | } |
908 | ||
909 | return 0; | |
910 | } | |
911 | ||
4be44fcd | 912 | static int asus_hotk_remove_fs(struct acpi_device *device) |
1da177e4 | 913 | { |
4be44fcd LB |
914 | if (acpi_device_dir(device)) { |
915 | remove_proc_entry(PROC_INFO, acpi_device_dir(device)); | |
1da177e4 | 916 | if (hotk->methods->mt_wled) |
4be44fcd | 917 | remove_proc_entry(PROC_WLED, acpi_device_dir(device)); |
1da177e4 | 918 | if (hotk->methods->mt_mled) |
4be44fcd | 919 | remove_proc_entry(PROC_MLED, acpi_device_dir(device)); |
1da177e4 | 920 | if (hotk->methods->mt_tled) |
4be44fcd | 921 | remove_proc_entry(PROC_TLED, acpi_device_dir(device)); |
1da177e4 LT |
922 | if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) |
923 | remove_proc_entry(PROC_LCD, acpi_device_dir(device)); | |
4be44fcd LB |
924 | if ((hotk->methods->brightness_up |
925 | && hotk->methods->brightness_down) | |
926 | || (hotk->methods->brightness_get | |
927 | && hotk->methods->brightness_set)) | |
1da177e4 LT |
928 | remove_proc_entry(PROC_BRN, acpi_device_dir(device)); |
929 | if (hotk->methods->display_set) | |
930 | remove_proc_entry(PROC_DISP, acpi_device_dir(device)); | |
931 | } | |
932 | return 0; | |
933 | } | |
934 | ||
1da177e4 LT |
935 | static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) |
936 | { | |
4be44fcd | 937 | /* TODO Find a better way to handle events count. */ |
1da177e4 LT |
938 | if (!hotk) |
939 | return; | |
940 | ||
941 | if ((event & ~((u32) BR_UP)) < 16) { | |
942 | hotk->brightness = (event & ~((u32) BR_UP)); | |
4be44fcd | 943 | } else if ((event & ~((u32) BR_DOWN)) < 16) { |
1da177e4 LT |
944 | hotk->brightness = (event & ~((u32) BR_DOWN)); |
945 | } | |
946 | ||
947 | acpi_bus_generate_event(hotk->device, event, | |
948 | hotk->event_count[event % 128]++); | |
949 | ||
950 | return; | |
951 | } | |
952 | ||
953 | /* | |
954 | * This function is used to initialize the hotk with right values. In this | |
955 | * method, we can make all the detection we want, and modify the hotk struct | |
956 | */ | |
200739c1 | 957 | static int asus_hotk_get_info(void) |
1da177e4 LT |
958 | { |
959 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
960 | struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL }; | |
961 | union acpi_object *model = NULL; | |
962 | int bsts_result; | |
963 | acpi_status status; | |
964 | ||
965 | /* | |
966 | * Get DSDT headers early enough to allow for differentiating between | |
967 | * models, but late enough to allow acpi_bus_register_driver() to fail | |
968 | * before doing anything ACPI-specific. Should we encounter a machine, | |
969 | * which needs special handling (i.e. its hotkey device has a different | |
970 | * HID), this bit will be moved. A global variable asus_info contains | |
971 | * the DSDT header. | |
972 | */ | |
b229cf92 | 973 | status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt); |
1da177e4 LT |
974 | if (ACPI_FAILURE(status)) |
975 | printk(KERN_WARNING " Couldn't get the DSDT table header\n"); | |
976 | else | |
4be44fcd | 977 | asus_info = (struct acpi_table_header *)dsdt.pointer; |
1da177e4 LT |
978 | |
979 | /* We have to write 0 on init this far for all ASUS models */ | |
980 | if (!write_acpi_int(hotk->handle, "INIT", 0, &buffer)) { | |
981 | printk(KERN_ERR " Hotkey initialization failed\n"); | |
982 | return -ENODEV; | |
983 | } | |
984 | ||
985 | /* This needs to be called for some laptops to init properly */ | |
986 | if (!read_acpi_int(hotk->handle, "BSTS", &bsts_result)) | |
987 | printk(KERN_WARNING " Error calling BSTS\n"); | |
988 | else if (bsts_result) | |
4be44fcd LB |
989 | printk(KERN_NOTICE " BSTS called, 0x%02x returned\n", |
990 | bsts_result); | |
1da177e4 | 991 | |
b697b537 KK |
992 | /* This is unlikely with implicit return */ |
993 | if (buffer.pointer == NULL) | |
994 | return -EINVAL; | |
995 | ||
996 | model = (union acpi_object *) buffer.pointer; | |
997 | /* | |
998 | * Samsung P30 has a device with a valid _HID whose INIT does not | |
999 | * return anything. It used to be possible to catch this exception, | |
1000 | * but the implicit return code will now happily confuse the | |
1001 | * driver. We assume that every ACPI_TYPE_STRING is a valid model | |
1002 | * identifier but it's still possible to get completely bogus data. | |
1003 | */ | |
1004 | if (model->type == ACPI_TYPE_STRING) { | |
1005 | printk(KERN_NOTICE " %s model detected, ", model->string.pointer); | |
1006 | } else { | |
4be44fcd | 1007 | if (asus_info && /* Samsung P30 */ |
1da177e4 LT |
1008 | strncmp(asus_info->oem_table_id, "ODEM", 4) == 0) { |
1009 | hotk->model = P30; | |
4be44fcd LB |
1010 | printk(KERN_NOTICE |
1011 | " Samsung P30 detected, supported\n"); | |
1da177e4 LT |
1012 | } else { |
1013 | hotk->model = M2E; | |
1014 | printk(KERN_WARNING " no string returned by INIT\n"); | |
1015 | printk(KERN_WARNING " trying default values, supply " | |
1016 | "the developers with your DSDT\n"); | |
1017 | } | |
1018 | hotk->methods = &model_conf[hotk->model]; | |
b697b537 | 1019 | |
02438d87 | 1020 | kfree(model); |
4be44fcd | 1021 | |
b697b537 | 1022 | return AE_OK; |
1da177e4 LT |
1023 | } |
1024 | ||
1025 | hotk->model = END_MODEL; | |
1026 | if (strncmp(model->string.pointer, "L3D", 3) == 0) | |
1027 | hotk->model = L3D; | |
1028 | else if (strncmp(model->string.pointer, "L3H", 3) == 0 || | |
1029 | strncmp(model->string.pointer, "L2E", 3) == 0) | |
1030 | hotk->model = L3H; | |
1031 | else if (strncmp(model->string.pointer, "L3", 2) == 0 || | |
1032 | strncmp(model->string.pointer, "L2B", 3) == 0) | |
1033 | hotk->model = L3C; | |
1034 | else if (strncmp(model->string.pointer, "L8L", 3) == 0) | |
1035 | hotk->model = L8L; | |
1036 | else if (strncmp(model->string.pointer, "L4R", 3) == 0) | |
1037 | hotk->model = L4R; | |
1038 | else if (strncmp(model->string.pointer, "M6N", 3) == 0) | |
1039 | hotk->model = M6N; | |
1040 | else if (strncmp(model->string.pointer, "M6R", 3) == 0) | |
1041 | hotk->model = M6R; | |
1042 | else if (strncmp(model->string.pointer, "M2N", 3) == 0 || | |
1043 | strncmp(model->string.pointer, "M3N", 3) == 0 || | |
1044 | strncmp(model->string.pointer, "M5N", 3) == 0 || | |
1045 | strncmp(model->string.pointer, "M6N", 3) == 0 || | |
1046 | strncmp(model->string.pointer, "S1N", 3) == 0 || | |
1047 | strncmp(model->string.pointer, "S5N", 3) == 0 || | |
4be44fcd | 1048 | strncmp(model->string.pointer, "W1N", 3) == 0) |
1da177e4 LT |
1049 | hotk->model = xxN; |
1050 | else if (strncmp(model->string.pointer, "M1", 2) == 0) | |
1051 | hotk->model = M1A; | |
1052 | else if (strncmp(model->string.pointer, "M2", 2) == 0 || | |
1053 | strncmp(model->string.pointer, "L4E", 3) == 0) | |
1054 | hotk->model = M2E; | |
1055 | else if (strncmp(model->string.pointer, "L2", 2) == 0) | |
1056 | hotk->model = L2D; | |
1057 | else if (strncmp(model->string.pointer, "L8", 2) == 0) | |
1058 | hotk->model = S1x; | |
1059 | else if (strncmp(model->string.pointer, "D1", 2) == 0) | |
1060 | hotk->model = D1x; | |
1061 | else if (strncmp(model->string.pointer, "A1", 2) == 0) | |
1062 | hotk->model = A1x; | |
1063 | else if (strncmp(model->string.pointer, "A2", 2) == 0) | |
1064 | hotk->model = A2x; | |
1065 | else if (strncmp(model->string.pointer, "J1", 2) == 0) | |
1066 | hotk->model = S2x; | |
1067 | else if (strncmp(model->string.pointer, "L5", 2) == 0) | |
1068 | hotk->model = L5x; | |
1069 | ||
1070 | if (hotk->model == END_MODEL) { | |
1071 | printk("unsupported, trying default values, supply the " | |
1072 | "developers with your DSDT\n"); | |
1073 | hotk->model = M2E; | |
1074 | } else { | |
1075 | printk("supported\n"); | |
1076 | } | |
1077 | ||
1078 | hotk->methods = &model_conf[hotk->model]; | |
1079 | ||
1080 | /* Sort of per-model blacklist */ | |
1081 | if (strncmp(model->string.pointer, "L2B", 3) == 0) | |
4be44fcd | 1082 | hotk->methods->lcd_status = NULL; |
1da177e4 LT |
1083 | /* L2B is similar enough to L3C to use its settings, with this only |
1084 | exception */ | |
1085 | else if (strncmp(model->string.pointer, "S5N", 3) == 0 || | |
1086 | strncmp(model->string.pointer, "M5N", 3) == 0) | |
4be44fcd | 1087 | hotk->methods->mt_mled = NULL; |
1da177e4 LT |
1088 | /* S5N and M5N have no MLED */ |
1089 | else if (strncmp(model->string.pointer, "M2N", 3) == 0 || | |
1090 | strncmp(model->string.pointer, "W1N", 3) == 0) | |
4be44fcd | 1091 | hotk->methods->mt_wled = "WLED"; |
1da177e4 LT |
1092 | /* M2N and W1N have a usable WLED */ |
1093 | else if (asus_info) { | |
1094 | if (strncmp(asus_info->oem_table_id, "L1", 2) == 0) | |
1095 | hotk->methods->mled_status = NULL; | |
4be44fcd | 1096 | /* S1300A reports L84F, but L1400B too, account for that */ |
1da177e4 LT |
1097 | } |
1098 | ||
02438d87 | 1099 | kfree(model); |
1da177e4 LT |
1100 | |
1101 | return AE_OK; | |
1102 | } | |
1103 | ||
200739c1 | 1104 | static int asus_hotk_check(void) |
1da177e4 LT |
1105 | { |
1106 | int result = 0; | |
1107 | ||
1108 | result = acpi_bus_get_status(hotk->device); | |
1109 | if (result) | |
1110 | return result; | |
1111 | ||
1112 | if (hotk->device->status.present) { | |
1113 | result = asus_hotk_get_info(); | |
1114 | } else { | |
1115 | printk(KERN_ERR " Hotkey device not present, aborting\n"); | |
1116 | return -EINVAL; | |
1117 | } | |
1118 | ||
1119 | return result; | |
1120 | } | |
1121 | ||
578b333b BH |
1122 | static int asus_hotk_found; |
1123 | ||
200739c1 | 1124 | static int asus_hotk_add(struct acpi_device *device) |
1da177e4 LT |
1125 | { |
1126 | acpi_status status = AE_OK; | |
1127 | int result; | |
1128 | ||
1129 | if (!device) | |
1130 | return -EINVAL; | |
1131 | ||
1132 | printk(KERN_NOTICE "Asus Laptop ACPI Extras version %s\n", | |
1133 | ASUS_ACPI_VERSION); | |
1134 | ||
1135 | hotk = | |
4be44fcd | 1136 | (struct asus_hotk *)kmalloc(sizeof(struct asus_hotk), GFP_KERNEL); |
1da177e4 LT |
1137 | if (!hotk) |
1138 | return -ENOMEM; | |
1139 | memset(hotk, 0, sizeof(struct asus_hotk)); | |
1140 | ||
1141 | hotk->handle = device->handle; | |
1142 | strcpy(acpi_device_name(device), ACPI_HOTK_DEVICE_NAME); | |
1143 | strcpy(acpi_device_class(device), ACPI_HOTK_CLASS); | |
1144 | acpi_driver_data(device) = hotk; | |
1145 | hotk->device = device; | |
1146 | ||
1da177e4 LT |
1147 | result = asus_hotk_check(); |
1148 | if (result) | |
1149 | goto end; | |
1150 | ||
1151 | result = asus_hotk_add_fs(device); | |
1152 | if (result) | |
1153 | goto end; | |
1154 | ||
1155 | /* | |
1156 | * We install the handler, it will receive the hotk in parameter, so, we | |
1157 | * could add other data to the hotk struct | |
1158 | */ | |
1159 | status = acpi_install_notify_handler(hotk->handle, ACPI_SYSTEM_NOTIFY, | |
1160 | asus_hotk_notify, hotk); | |
1161 | if (ACPI_FAILURE(status)) | |
1162 | printk(KERN_ERR " Error installing notify handler\n"); | |
1163 | ||
1164 | /* For laptops without GPLV: init the hotk->brightness value */ | |
4be44fcd LB |
1165 | if ((!hotk->methods->brightness_get) |
1166 | && (!hotk->methods->brightness_status) | |
1167 | && (hotk->methods->brightness_up | |
1168 | && hotk->methods->brightness_down)) { | |
1169 | status = | |
1170 | acpi_evaluate_object(NULL, hotk->methods->brightness_down, | |
1171 | NULL, NULL); | |
1da177e4 LT |
1172 | if (ACPI_FAILURE(status)) |
1173 | printk(KERN_WARNING " Error changing brightness\n"); | |
1174 | else { | |
4be44fcd LB |
1175 | status = |
1176 | acpi_evaluate_object(NULL, | |
1177 | hotk->methods->brightness_up, | |
1178 | NULL, NULL); | |
1da177e4 | 1179 | if (ACPI_FAILURE(status)) |
4be44fcd | 1180 | printk(KERN_WARNING " Strange, error changing" |
1da177e4 LT |
1181 | " brightness\n"); |
1182 | } | |
1183 | } | |
1184 | ||
578b333b BH |
1185 | asus_hotk_found = 1; |
1186 | ||
1da177e4 LT |
1187 | end: |
1188 | if (result) { | |
1189 | kfree(hotk); | |
1190 | } | |
1191 | ||
1192 | return result; | |
1193 | } | |
1194 | ||
1da177e4 LT |
1195 | static int asus_hotk_remove(struct acpi_device *device, int type) |
1196 | { | |
1197 | acpi_status status = 0; | |
1198 | ||
1199 | if (!device || !acpi_driver_data(device)) | |
1200 | return -EINVAL; | |
1201 | ||
1202 | status = acpi_remove_notify_handler(hotk->handle, ACPI_SYSTEM_NOTIFY, | |
1203 | asus_hotk_notify); | |
1204 | if (ACPI_FAILURE(status)) | |
1205 | printk(KERN_ERR "Asus ACPI: Error removing notify handler\n"); | |
1206 | ||
1207 | asus_hotk_remove_fs(device); | |
1208 | ||
1209 | kfree(hotk); | |
1210 | ||
1211 | return 0; | |
1212 | } | |
1213 | ||
1da177e4 LT |
1214 | static int __init asus_acpi_init(void) |
1215 | { | |
1216 | int result; | |
1217 | ||
1218 | if (acpi_disabled) | |
1219 | return -ENODEV; | |
1220 | ||
4be44fcd | 1221 | if (!acpi_specific_hotkey_enabled) { |
fb9802fa | 1222 | printk(KERN_ERR "Using generic hotkey driver\n"); |
4be44fcd | 1223 | return -ENODEV; |
fb9802fa | 1224 | } |
1da177e4 LT |
1225 | asus_proc_dir = proc_mkdir(PROC_ASUS, acpi_root_dir); |
1226 | if (!asus_proc_dir) { | |
1227 | printk(KERN_ERR "Asus ACPI: Unable to create /proc entry\n"); | |
1228 | return -ENODEV; | |
1229 | } | |
1230 | asus_proc_dir->owner = THIS_MODULE; | |
1231 | ||
1232 | result = acpi_bus_register_driver(&asus_hotk_driver); | |
578b333b BH |
1233 | if (result < 0) { |
1234 | remove_proc_entry(PROC_ASUS, acpi_root_dir); | |
5e7d8818 | 1235 | return result; |
578b333b BH |
1236 | } |
1237 | ||
1238 | /* | |
1239 | * This is a bit of a kludge. We only want this module loaded | |
1240 | * for ASUS systems, but there's currently no way to probe the | |
1241 | * ACPI namespace for ASUS HIDs. So we just return failure if | |
1242 | * we didn't find one, which will cause the module to be | |
1243 | * unloaded. | |
1244 | */ | |
1245 | if (!asus_hotk_found) { | |
1da177e4 LT |
1246 | acpi_bus_unregister_driver(&asus_hotk_driver); |
1247 | remove_proc_entry(PROC_ASUS, acpi_root_dir); | |
ebd5f2ca | 1248 | return result; |
1da177e4 LT |
1249 | } |
1250 | ||
1251 | return 0; | |
1252 | } | |
1253 | ||
1da177e4 LT |
1254 | static void __exit asus_acpi_exit(void) |
1255 | { | |
1256 | acpi_bus_unregister_driver(&asus_hotk_driver); | |
1257 | remove_proc_entry(PROC_ASUS, acpi_root_dir); | |
1258 | ||
02438d87 | 1259 | kfree(asus_info); |
1da177e4 LT |
1260 | |
1261 | return; | |
1262 | } | |
1263 | ||
1264 | module_init(asus_acpi_init); | |
1265 | module_exit(asus_acpi_exit); |