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85091b71 CC |
1 | /* |
2 | * asus-laptop.c - Asus Laptop Support | |
3 | * | |
4 | * | |
5 | * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor | |
6 | * Copyright (C) 2006 Corentin Chary | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | * | |
23 | * The development page for this driver is located at | |
24 | * http://sourceforge.net/projects/acpi4asus/ | |
25 | * | |
26 | * Credits: | |
27 | * Pontus Fuchs - Helper functions, cleanup | |
28 | * Johann Wiesner - Small compile fixes | |
29 | * John Belmonte - ACPI code for Toshiba laptop was a good starting point. | |
30 | * Eric Burghard - LED display support for W1N | |
31 | * Josh Green - Light Sens support | |
32 | * Thomas Tuttle - His first patch for led support was very helpfull | |
33 | * | |
34 | */ | |
35 | ||
36 | #include <linux/autoconf.h> | |
37 | #include <linux/kernel.h> | |
38 | #include <linux/module.h> | |
39 | #include <linux/init.h> | |
40 | #include <linux/types.h> | |
41 | #include <linux/err.h> | |
42 | #include <linux/proc_fs.h> | |
6b7091e7 CC |
43 | #include <linux/backlight.h> |
44 | #include <linux/fb.h> | |
be18cdab | 45 | #include <linux/leds.h> |
85091b71 CC |
46 | #include <linux/platform_device.h> |
47 | #include <acpi/acpi_drivers.h> | |
48 | #include <acpi/acpi_bus.h> | |
49 | #include <asm/uaccess.h> | |
50 | ||
51 | #define ASUS_LAPTOP_VERSION "0.40" | |
52 | ||
53 | #define ASUS_HOTK_NAME "Asus Laptop Support" | |
54 | #define ASUS_HOTK_CLASS "hotkey" | |
55 | #define ASUS_HOTK_DEVICE_NAME "Hotkey" | |
56 | #define ASUS_HOTK_HID "ATK0100" | |
57 | #define ASUS_HOTK_FILE "asus-laptop" | |
58 | #define ASUS_HOTK_PREFIX "\\_SB.ATKD." | |
59 | ||
6b7091e7 CC |
60 | /* |
61 | * Some events we use, same for all Asus | |
62 | */ | |
63 | #define ATKD_BR_UP 0x10 | |
64 | #define ATKD_BR_DOWN 0x20 | |
65 | #define ATKD_LCD_ON 0x33 | |
66 | #define ATKD_LCD_OFF 0x34 | |
67 | ||
4564de17 CC |
68 | /* |
69 | * Known bits returned by \_SB.ATKD.HWRS | |
70 | */ | |
71 | #define WL_HWRS 0x80 | |
72 | #define BT_HWRS 0x100 | |
73 | ||
be18cdab CC |
74 | /* |
75 | * Flags for hotk status | |
4564de17 | 76 | * WL_ON and BT_ON are also used for wireless_status() |
be18cdab | 77 | */ |
4564de17 CC |
78 | #define WL_ON 0x01 //internal Wifi |
79 | #define BT_ON 0x02 //internal Bluetooth | |
be18cdab CC |
80 | #define MLED_ON 0x04 //mail LED |
81 | #define TLED_ON 0x08 //touchpad LED | |
8def05fa LB |
82 | #define RLED_ON 0x10 //Record LED |
83 | #define PLED_ON 0x20 //Phone LED | |
fdd8d080 CC |
84 | #define GLED_ON 0x40 //Gaming LED |
85 | #define LCD_ON 0x80 //LCD backlight | |
be18cdab | 86 | |
85091b71 CC |
87 | #define ASUS_LOG ASUS_HOTK_FILE ": " |
88 | #define ASUS_ERR KERN_ERR ASUS_LOG | |
89 | #define ASUS_WARNING KERN_WARNING ASUS_LOG | |
90 | #define ASUS_NOTICE KERN_NOTICE ASUS_LOG | |
91 | #define ASUS_INFO KERN_INFO ASUS_LOG | |
92 | #define ASUS_DEBUG KERN_DEBUG ASUS_LOG | |
93 | ||
94 | MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary"); | |
95 | MODULE_DESCRIPTION(ASUS_HOTK_NAME); | |
96 | MODULE_LICENSE("GPL"); | |
97 | ||
185e5af9 CC |
98 | /* WAPF defines the behavior of the Fn+Fx wlan key |
99 | * The significance of values is yet to be found, but | |
100 | * most of the time: | |
101 | * 0x0 will do nothing | |
102 | * 0x1 will allow to control the device with Fn+Fx key. | |
103 | * 0x4 will send an ACPI event (0x88) while pressing the Fn+Fx key | |
104 | * 0x5 like 0x1 or 0x4 | |
105 | * So, if something doesn't work as you want, just try other values =) | |
106 | */ | |
107 | static uint wapf = 1; | |
108 | module_param(wapf, uint, 0644); | |
109 | MODULE_PARM_DESC(wapf, "WAPF value"); | |
110 | ||
85091b71 CC |
111 | #define ASUS_HANDLE(object, paths...) \ |
112 | static acpi_handle object##_handle = NULL; \ | |
113 | static char *object##_paths[] = { paths } | |
114 | ||
be18cdab CC |
115 | /* LED */ |
116 | ASUS_HANDLE(mled_set, ASUS_HOTK_PREFIX "MLED"); | |
117 | ASUS_HANDLE(tled_set, ASUS_HOTK_PREFIX "TLED"); | |
8def05fa LB |
118 | ASUS_HANDLE(rled_set, ASUS_HOTK_PREFIX "RLED"); /* W1JC */ |
119 | ASUS_HANDLE(pled_set, ASUS_HOTK_PREFIX "PLED"); /* A7J */ | |
fdd8d080 | 120 | ASUS_HANDLE(gled_set, ASUS_HOTK_PREFIX "GLED"); /* G1, G2 (probably) */ |
be18cdab | 121 | |
722ad971 CC |
122 | /* LEDD */ |
123 | ASUS_HANDLE(ledd_set, ASUS_HOTK_PREFIX "SLCM"); | |
124 | ||
4564de17 CC |
125 | /* Bluetooth and WLAN |
126 | * WLED and BLED are not handled like other XLED, because in some dsdt | |
127 | * they also control the WLAN/Bluetooth device. | |
128 | */ | |
129 | ASUS_HANDLE(wl_switch, ASUS_HOTK_PREFIX "WLED"); | |
130 | ASUS_HANDLE(bt_switch, ASUS_HOTK_PREFIX "BLED"); | |
8def05fa | 131 | ASUS_HANDLE(wireless_status, ASUS_HOTK_PREFIX "RSTS"); /* All new models */ |
4564de17 | 132 | |
6b7091e7 CC |
133 | /* Brightness */ |
134 | ASUS_HANDLE(brightness_set, ASUS_HOTK_PREFIX "SPLV"); | |
135 | ASUS_HANDLE(brightness_get, ASUS_HOTK_PREFIX "GPLV"); | |
136 | ||
137 | /* Backlight */ | |
8def05fa LB |
138 | ASUS_HANDLE(lcd_switch, "\\_SB.PCI0.SBRG.EC0._Q10", /* All new models */ |
139 | "\\_SB.PCI0.ISA.EC0._Q10", /* A1x */ | |
140 | "\\_SB.PCI0.PX40.ECD0._Q10", /* L3C */ | |
141 | "\\_SB.PCI0.PX40.EC0.Q10", /* M1A */ | |
142 | "\\_SB.PCI0.LPCB.EC0._Q10", /* P30 */ | |
143 | "\\_SB.PCI0.PX40.Q10", /* S1x */ | |
144 | "\\Q10"); /* A2x, L2D, L3D, M2E */ | |
6b7091e7 | 145 | |
78127b4a CC |
146 | /* Display */ |
147 | ASUS_HANDLE(display_set, ASUS_HOTK_PREFIX "SDSP"); | |
8def05fa LB |
148 | ASUS_HANDLE(display_get, "\\_SB.PCI0.P0P1.VGA.GETD", /* A6B, A6K A6R A7D F3JM L4R M6R A3G |
149 | M6A M6V VX-1 V6J V6V W3Z */ | |
150 | "\\_SB.PCI0.P0P2.VGA.GETD", /* A3E A4K, A4D A4L A6J A7J A8J Z71V M9V | |
78127b4a | 151 | S5A M5A z33A W1Jc W2V */ |
8def05fa LB |
152 | "\\_SB.PCI0.P0P3.VGA.GETD", /* A6V A6Q */ |
153 | "\\_SB.PCI0.P0PA.VGA.GETD", /* A6T, A6M */ | |
154 | "\\_SB.PCI0.PCI1.VGAC.NMAP", /* L3C */ | |
155 | "\\_SB.PCI0.VGA.GETD", /* Z96F */ | |
156 | "\\ACTD", /* A2D */ | |
157 | "\\ADVG", /* A4G Z71A W1N W5A W5F M2N M3N M5N M6N S1N S5N */ | |
158 | "\\DNXT", /* P30 */ | |
159 | "\\INFB", /* A2H D1 L2D L3D L3H L2E L5D L5C M1A M2E L4L W3V */ | |
160 | "\\SSTE"); /* A3F A6F A3N A3L M6N W3N W6A */ | |
161 | ||
162 | ASUS_HANDLE(ls_switch, ASUS_HOTK_PREFIX "ALSC"); /* Z71A Z71V */ | |
163 | ASUS_HANDLE(ls_level, ASUS_HOTK_PREFIX "ALSL"); /* Z71A Z71V */ | |
8b857353 | 164 | |
85091b71 CC |
165 | /* |
166 | * This is the main structure, we can use it to store anything interesting | |
167 | * about the hotk device | |
168 | */ | |
169 | struct asus_hotk { | |
8def05fa | 170 | char *name; //laptop name |
85091b71 CC |
171 | struct acpi_device *device; //the device we are in |
172 | acpi_handle handle; //the handle of the hotk device | |
173 | char status; //status of the hotk, for LEDs, ... | |
722ad971 | 174 | u32 ledd_status; //status of the LED display |
8def05fa LB |
175 | u8 light_level; //light sensor level |
176 | u8 light_switch; //light sensor switch value | |
85091b71 CC |
177 | u16 event_count[128]; //count for each event TODO make this better |
178 | }; | |
179 | ||
180 | /* | |
181 | * This header is made available to allow proper configuration given model, | |
182 | * revision number , ... this info cannot go in struct asus_hotk because it is | |
183 | * available before the hotk | |
184 | */ | |
185 | static struct acpi_table_header *asus_info; | |
186 | ||
187 | /* The actual device the driver binds to */ | |
188 | static struct asus_hotk *hotk; | |
189 | ||
190 | /* | |
191 | * The hotkey driver declaration | |
192 | */ | |
193 | static int asus_hotk_add(struct acpi_device *device); | |
194 | static int asus_hotk_remove(struct acpi_device *device, int type); | |
195 | static struct acpi_driver asus_hotk_driver = { | |
196 | .name = ASUS_HOTK_NAME, | |
197 | .class = ASUS_HOTK_CLASS, | |
198 | .ids = ASUS_HOTK_HID, | |
199 | .ops = { | |
200 | .add = asus_hotk_add, | |
201 | .remove = asus_hotk_remove, | |
202 | }, | |
203 | }; | |
204 | ||
6b7091e7 CC |
205 | /* The backlight device /sys/class/backlight */ |
206 | static struct backlight_device *asus_backlight_device; | |
207 | ||
208 | /* | |
209 | * The backlight class declaration | |
210 | */ | |
211 | static int read_brightness(struct backlight_device *bd); | |
212 | static int update_bl_status(struct backlight_device *bd); | |
599a52d1 | 213 | static struct backlight_ops asusbl_ops = { |
8def05fa LB |
214 | .get_brightness = read_brightness, |
215 | .update_status = update_bl_status, | |
6b7091e7 CC |
216 | }; |
217 | ||
be18cdab CC |
218 | /* These functions actually update the LED's, and are called from a |
219 | * workqueue. By doing this as separate work rather than when the LED | |
220 | * subsystem asks, we avoid messing with the Asus ACPI stuff during a | |
221 | * potentially bad time, such as a timer interrupt. */ | |
222 | static struct workqueue_struct *led_workqueue; | |
223 | ||
224 | #define ASUS_LED(object, ledname) \ | |
225 | static void object##_led_set(struct led_classdev *led_cdev, \ | |
226 | enum led_brightness value); \ | |
227 | static void object##_led_update(struct work_struct *ignored); \ | |
228 | static int object##_led_wk; \ | |
f110ef58 | 229 | static DECLARE_WORK(object##_led_work, object##_led_update); \ |
be18cdab CC |
230 | static struct led_classdev object##_led = { \ |
231 | .name = "asus:" ledname, \ | |
232 | .brightness_set = object##_led_set, \ | |
233 | } | |
234 | ||
235 | ASUS_LED(mled, "mail"); | |
236 | ASUS_LED(tled, "touchpad"); | |
237 | ASUS_LED(rled, "record"); | |
238 | ASUS_LED(pled, "phone"); | |
fdd8d080 | 239 | ASUS_LED(gled, "gaming"); |
be18cdab | 240 | |
85091b71 CC |
241 | /* |
242 | * This function evaluates an ACPI method, given an int as parameter, the | |
243 | * method is searched within the scope of the handle, can be NULL. The output | |
244 | * of the method is written is output, which can also be NULL | |
245 | * | |
246 | * returns 1 if write is successful, 0 else. | |
247 | */ | |
248 | static int write_acpi_int(acpi_handle handle, const char *method, int val, | |
249 | struct acpi_buffer *output) | |
250 | { | |
251 | struct acpi_object_list params; //list of input parameters (an int here) | |
252 | union acpi_object in_obj; //the only param we use | |
253 | acpi_status status; | |
254 | ||
255 | params.count = 1; | |
256 | params.pointer = &in_obj; | |
257 | in_obj.type = ACPI_TYPE_INTEGER; | |
258 | in_obj.integer.value = val; | |
259 | ||
260 | status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); | |
261 | return (status == AE_OK); | |
262 | } | |
263 | ||
8def05fa LB |
264 | static int read_wireless_status(int mask) |
265 | { | |
9a816850 CC |
266 | ulong status; |
267 | acpi_status rv = AE_OK; | |
4564de17 CC |
268 | |
269 | if (!wireless_status_handle) | |
270 | return (hotk->status & mask) ? 1 : 0; | |
271 | ||
9a816850 CC |
272 | rv = acpi_evaluate_integer(wireless_status_handle, NULL, NULL, &status); |
273 | if (ACPI_FAILURE(rv)) | |
4564de17 | 274 | printk(ASUS_WARNING "Error reading Wireless status\n"); |
9a816850 CC |
275 | else |
276 | return (status & mask) ? 1 : 0; | |
4564de17 CC |
277 | |
278 | return (hotk->status & mask) ? 1 : 0; | |
279 | } | |
280 | ||
be18cdab CC |
281 | /* Generic LED functions */ |
282 | static int read_status(int mask) | |
283 | { | |
4564de17 CC |
284 | /* There is a special method for both wireless devices */ |
285 | if (mask == BT_ON || mask == WL_ON) | |
286 | return read_wireless_status(mask); | |
287 | ||
be18cdab CC |
288 | return (hotk->status & mask) ? 1 : 0; |
289 | } | |
290 | ||
935ffeec | 291 | static void write_status(acpi_handle handle, int out, int mask) |
be18cdab CC |
292 | { |
293 | hotk->status = (out) ? (hotk->status | mask) : (hotk->status & ~mask); | |
294 | ||
935ffeec CC |
295 | switch (mask) { |
296 | case MLED_ON: | |
be18cdab | 297 | out = !out & 0x1; |
935ffeec | 298 | break; |
fdd8d080 CC |
299 | case GLED_ON: |
300 | out = (out & 0x1) + 1; | |
301 | break; | |
935ffeec CC |
302 | default: |
303 | out &= 0x1; | |
304 | break; | |
305 | } | |
be18cdab CC |
306 | |
307 | if (handle && !write_acpi_int(handle, NULL, out, NULL)) | |
935ffeec | 308 | printk(ASUS_WARNING " write failed %x\n", mask); |
be18cdab CC |
309 | } |
310 | ||
311 | /* /sys/class/led handlers */ | |
935ffeec | 312 | #define ASUS_LED_HANDLER(object, mask) \ |
be18cdab CC |
313 | static void object##_led_set(struct led_classdev *led_cdev, \ |
314 | enum led_brightness value) \ | |
315 | { \ | |
316 | object##_led_wk = value; \ | |
317 | queue_work(led_workqueue, &object##_led_work); \ | |
318 | } \ | |
319 | static void object##_led_update(struct work_struct *ignored) \ | |
320 | { \ | |
321 | int value = object##_led_wk; \ | |
935ffeec | 322 | write_status(object##_set_handle, value, (mask)); \ |
be18cdab CC |
323 | } |
324 | ||
935ffeec CC |
325 | ASUS_LED_HANDLER(mled, MLED_ON); |
326 | ASUS_LED_HANDLER(pled, PLED_ON); | |
327 | ASUS_LED_HANDLER(rled, RLED_ON); | |
328 | ASUS_LED_HANDLER(tled, TLED_ON); | |
fdd8d080 | 329 | ASUS_LED_HANDLER(gled, GLED_ON); |
be18cdab | 330 | |
6b7091e7 CC |
331 | static int get_lcd_state(void) |
332 | { | |
333 | return read_status(LCD_ON); | |
334 | } | |
335 | ||
336 | static int set_lcd_state(int value) | |
337 | { | |
338 | int lcd = 0; | |
339 | acpi_status status = 0; | |
340 | ||
341 | lcd = value ? 1 : 0; | |
342 | ||
343 | if (lcd == get_lcd_state()) | |
344 | return 0; | |
345 | ||
8def05fa | 346 | if (lcd_switch_handle) { |
6b7091e7 CC |
347 | status = acpi_evaluate_object(lcd_switch_handle, |
348 | NULL, NULL, NULL); | |
349 | ||
350 | if (ACPI_FAILURE(status)) | |
351 | printk(ASUS_WARNING "Error switching LCD\n"); | |
352 | } | |
353 | ||
935ffeec | 354 | write_status(NULL, lcd, LCD_ON); |
6b7091e7 CC |
355 | return 0; |
356 | } | |
357 | ||
358 | static void lcd_blank(int blank) | |
359 | { | |
360 | struct backlight_device *bd = asus_backlight_device; | |
361 | ||
8def05fa | 362 | if (bd) { |
599a52d1 | 363 | bd->props.power = blank; |
28ee086d | 364 | backlight_update_status(bd); |
6b7091e7 CC |
365 | } |
366 | } | |
367 | ||
368 | static int read_brightness(struct backlight_device *bd) | |
369 | { | |
9a816850 CC |
370 | ulong value; |
371 | acpi_status rv = AE_OK; | |
6b7091e7 | 372 | |
9a816850 CC |
373 | rv = acpi_evaluate_integer(brightness_get_handle, NULL, NULL, &value); |
374 | if (ACPI_FAILURE(rv)) | |
6b7091e7 CC |
375 | printk(ASUS_WARNING "Error reading brightness\n"); |
376 | ||
377 | return value; | |
378 | } | |
379 | ||
380 | static int set_brightness(struct backlight_device *bd, int value) | |
381 | { | |
382 | int ret = 0; | |
383 | ||
384 | value = (0 < value) ? ((15 < value) ? 15 : value) : 0; | |
385 | /* 0 <= value <= 15 */ | |
386 | ||
387 | if (!write_acpi_int(brightness_set_handle, NULL, value, NULL)) { | |
388 | printk(ASUS_WARNING "Error changing brightness\n"); | |
389 | ret = -EIO; | |
390 | } | |
391 | ||
392 | return ret; | |
393 | } | |
394 | ||
395 | static int update_bl_status(struct backlight_device *bd) | |
396 | { | |
397 | int rv; | |
599a52d1 | 398 | int value = bd->props.brightness; |
6b7091e7 CC |
399 | |
400 | rv = set_brightness(bd, value); | |
8def05fa | 401 | if (rv) |
6b7091e7 CC |
402 | return rv; |
403 | ||
599a52d1 | 404 | value = (bd->props.power == FB_BLANK_UNBLANK) ? 1 : 0; |
6b7091e7 CC |
405 | return set_lcd_state(value); |
406 | } | |
407 | ||
85091b71 CC |
408 | /* |
409 | * Platform device handlers | |
410 | */ | |
411 | ||
412 | /* | |
413 | * We write our info in page, we begin at offset off and cannot write more | |
414 | * than count bytes. We set eof to 1 if we handle those 2 values. We return the | |
415 | * number of bytes written in page | |
416 | */ | |
417 | static ssize_t show_infos(struct device *dev, | |
8def05fa | 418 | struct device_attribute *attr, char *page) |
85091b71 CC |
419 | { |
420 | int len = 0; | |
9a816850 | 421 | ulong temp; |
85091b71 | 422 | char buf[16]; //enough for all info |
9a816850 CC |
423 | acpi_status rv = AE_OK; |
424 | ||
85091b71 CC |
425 | /* |
426 | * We use the easy way, we don't care of off and count, so we don't set eof | |
427 | * to 1 | |
428 | */ | |
429 | ||
430 | len += sprintf(page, ASUS_HOTK_NAME " " ASUS_LAPTOP_VERSION "\n"); | |
431 | len += sprintf(page + len, "Model reference : %s\n", hotk->name); | |
432 | /* | |
433 | * The SFUN method probably allows the original driver to get the list | |
434 | * of features supported by a given model. For now, 0x0100 or 0x0800 | |
435 | * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. | |
436 | * The significance of others is yet to be found. | |
437 | */ | |
9a816850 CC |
438 | rv = acpi_evaluate_integer(hotk->handle, "SFUN", NULL, &temp); |
439 | if (!ACPI_FAILURE(rv)) | |
440 | len += sprintf(page + len, "SFUN value : 0x%04x\n", | |
441 | (uint) temp); | |
85091b71 CC |
442 | /* |
443 | * Another value for userspace: the ASYM method returns 0x02 for | |
444 | * battery low and 0x04 for battery critical, its readings tend to be | |
445 | * more accurate than those provided by _BST. | |
446 | * Note: since not all the laptops provide this method, errors are | |
447 | * silently ignored. | |
448 | */ | |
9a816850 CC |
449 | rv = acpi_evaluate_integer(hotk->handle, "ASYM", NULL, &temp); |
450 | if (!ACPI_FAILURE(rv)) | |
451 | len += sprintf(page + len, "ASYM value : 0x%04x\n", | |
452 | (uint) temp); | |
85091b71 CC |
453 | if (asus_info) { |
454 | snprintf(buf, 16, "%d", asus_info->length); | |
455 | len += sprintf(page + len, "DSDT length : %s\n", buf); | |
456 | snprintf(buf, 16, "%d", asus_info->checksum); | |
457 | len += sprintf(page + len, "DSDT checksum : %s\n", buf); | |
458 | snprintf(buf, 16, "%d", asus_info->revision); | |
459 | len += sprintf(page + len, "DSDT revision : %s\n", buf); | |
460 | snprintf(buf, 7, "%s", asus_info->oem_id); | |
461 | len += sprintf(page + len, "OEM id : %s\n", buf); | |
462 | snprintf(buf, 9, "%s", asus_info->oem_table_id); | |
463 | len += sprintf(page + len, "OEM table id : %s\n", buf); | |
464 | snprintf(buf, 16, "%x", asus_info->oem_revision); | |
465 | len += sprintf(page + len, "OEM revision : 0x%s\n", buf); | |
466 | snprintf(buf, 5, "%s", asus_info->asl_compiler_id); | |
467 | len += sprintf(page + len, "ASL comp vendor id : %s\n", buf); | |
468 | snprintf(buf, 16, "%x", asus_info->asl_compiler_revision); | |
469 | len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf); | |
470 | } | |
471 | ||
472 | return len; | |
473 | } | |
474 | ||
475 | static int parse_arg(const char *buf, unsigned long count, int *val) | |
476 | { | |
477 | if (!count) | |
478 | return 0; | |
479 | if (count > 31) | |
480 | return -EINVAL; | |
481 | if (sscanf(buf, "%i", val) != 1) | |
482 | return -EINVAL; | |
483 | return count; | |
484 | } | |
485 | ||
4564de17 | 486 | static ssize_t store_status(const char *buf, size_t count, |
935ffeec | 487 | acpi_handle handle, int mask) |
4564de17 CC |
488 | { |
489 | int rv, value; | |
490 | int out = 0; | |
491 | ||
492 | rv = parse_arg(buf, count, &value); | |
493 | if (rv > 0) | |
494 | out = value ? 1 : 0; | |
495 | ||
935ffeec | 496 | write_status(handle, out, mask); |
4564de17 CC |
497 | |
498 | return rv; | |
499 | } | |
500 | ||
722ad971 CC |
501 | /* |
502 | * LEDD display | |
503 | */ | |
504 | static ssize_t show_ledd(struct device *dev, | |
505 | struct device_attribute *attr, char *buf) | |
506 | { | |
507 | return sprintf(buf, "0x%08x\n", hotk->ledd_status); | |
508 | } | |
509 | ||
510 | static ssize_t store_ledd(struct device *dev, struct device_attribute *attr, | |
511 | const char *buf, size_t count) | |
512 | { | |
513 | int rv, value; | |
514 | ||
515 | rv = parse_arg(buf, count, &value); | |
516 | if (rv > 0) { | |
517 | if (!write_acpi_int(ledd_set_handle, NULL, value, NULL)) | |
518 | printk(ASUS_WARNING "LED display write failed\n"); | |
519 | else | |
520 | hotk->ledd_status = (u32) value; | |
521 | } | |
522 | return rv; | |
523 | } | |
524 | ||
4564de17 CC |
525 | /* |
526 | * WLAN | |
527 | */ | |
528 | static ssize_t show_wlan(struct device *dev, | |
529 | struct device_attribute *attr, char *buf) | |
530 | { | |
531 | return sprintf(buf, "%d\n", read_status(WL_ON)); | |
532 | } | |
533 | ||
534 | static ssize_t store_wlan(struct device *dev, struct device_attribute *attr, | |
535 | const char *buf, size_t count) | |
536 | { | |
935ffeec | 537 | return store_status(buf, count, wl_switch_handle, WL_ON); |
4564de17 CC |
538 | } |
539 | ||
540 | /* | |
541 | * Bluetooth | |
542 | */ | |
543 | static ssize_t show_bluetooth(struct device *dev, | |
544 | struct device_attribute *attr, char *buf) | |
545 | { | |
546 | return sprintf(buf, "%d\n", read_status(BT_ON)); | |
547 | } | |
548 | ||
8def05fa LB |
549 | static ssize_t store_bluetooth(struct device *dev, |
550 | struct device_attribute *attr, const char *buf, | |
551 | size_t count) | |
4564de17 | 552 | { |
935ffeec | 553 | return store_status(buf, count, bt_switch_handle, BT_ON); |
4564de17 CC |
554 | } |
555 | ||
78127b4a CC |
556 | /* |
557 | * Display | |
558 | */ | |
559 | static void set_display(int value) | |
560 | { | |
561 | /* no sanity check needed for now */ | |
562 | if (!write_acpi_int(display_set_handle, NULL, value, NULL)) | |
563 | printk(ASUS_WARNING "Error setting display\n"); | |
564 | return; | |
565 | } | |
566 | ||
567 | static int read_display(void) | |
568 | { | |
9a816850 CC |
569 | ulong value = 0; |
570 | acpi_status rv = AE_OK; | |
78127b4a CC |
571 | |
572 | /* In most of the case, we know how to set the display, but sometime | |
573 | we can't read it */ | |
8def05fa | 574 | if (display_get_handle) { |
9a816850 CC |
575 | rv = acpi_evaluate_integer(display_get_handle, NULL, |
576 | NULL, &value); | |
577 | if (ACPI_FAILURE(rv)) | |
78127b4a CC |
578 | printk(ASUS_WARNING "Error reading display status\n"); |
579 | } | |
580 | ||
581 | value &= 0x0F; /* needed for some models, shouldn't hurt others */ | |
582 | ||
583 | return value; | |
584 | } | |
8def05fa | 585 | |
78127b4a CC |
586 | /* |
587 | * Now, *this* one could be more user-friendly, but so far, no-one has | |
588 | * complained. The significance of bits is the same as in store_disp() | |
589 | */ | |
590 | static ssize_t show_disp(struct device *dev, | |
591 | struct device_attribute *attr, char *buf) | |
592 | { | |
593 | return sprintf(buf, "%d\n", read_display()); | |
594 | } | |
595 | ||
596 | /* | |
597 | * Experimental support for display switching. As of now: 1 should activate | |
598 | * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI. | |
599 | * Any combination (bitwise) of these will suffice. I never actually tested 4 | |
600 | * displays hooked up simultaneously, so be warned. See the acpi4asus README | |
601 | * for more info. | |
602 | */ | |
603 | static ssize_t store_disp(struct device *dev, struct device_attribute *attr, | |
604 | const char *buf, size_t count) | |
605 | { | |
606 | int rv, value; | |
607 | ||
608 | rv = parse_arg(buf, count, &value); | |
609 | if (rv > 0) | |
610 | set_display(value); | |
611 | return rv; | |
612 | } | |
613 | ||
8b857353 CC |
614 | /* |
615 | * Light Sens | |
616 | */ | |
617 | static void set_light_sens_switch(int value) | |
618 | { | |
619 | if (!write_acpi_int(ls_switch_handle, NULL, value, NULL)) | |
620 | printk(ASUS_WARNING "Error setting light sensor switch\n"); | |
621 | hotk->light_switch = value; | |
622 | } | |
623 | ||
624 | static ssize_t show_lssw(struct device *dev, | |
625 | struct device_attribute *attr, char *buf) | |
626 | { | |
627 | return sprintf(buf, "%d\n", hotk->light_switch); | |
628 | } | |
629 | ||
630 | static ssize_t store_lssw(struct device *dev, struct device_attribute *attr, | |
631 | const char *buf, size_t count) | |
632 | { | |
633 | int rv, value; | |
634 | ||
635 | rv = parse_arg(buf, count, &value); | |
636 | if (rv > 0) | |
637 | set_light_sens_switch(value ? 1 : 0); | |
638 | ||
639 | return rv; | |
640 | } | |
641 | ||
642 | static void set_light_sens_level(int value) | |
643 | { | |
644 | if (!write_acpi_int(ls_level_handle, NULL, value, NULL)) | |
645 | printk(ASUS_WARNING "Error setting light sensor level\n"); | |
646 | hotk->light_level = value; | |
647 | } | |
648 | ||
649 | static ssize_t show_lslvl(struct device *dev, | |
650 | struct device_attribute *attr, char *buf) | |
651 | { | |
652 | return sprintf(buf, "%d\n", hotk->light_level); | |
653 | } | |
654 | ||
655 | static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr, | |
656 | const char *buf, size_t count) | |
657 | { | |
658 | int rv, value; | |
659 | ||
660 | rv = parse_arg(buf, count, &value); | |
661 | if (rv > 0) { | |
662 | value = (0 < value) ? ((15 < value) ? 15 : value) : 0; | |
663 | /* 0 <= value <= 15 */ | |
664 | set_light_sens_level(value); | |
665 | } | |
666 | ||
667 | return rv; | |
668 | } | |
669 | ||
85091b71 CC |
670 | static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) |
671 | { | |
672 | /* TODO Find a better way to handle events count. */ | |
673 | if (!hotk) | |
674 | return; | |
675 | ||
6b7091e7 CC |
676 | /* |
677 | * We need to tell the backlight device when the backlight power is | |
678 | * switched | |
679 | */ | |
680 | if (event == ATKD_LCD_ON) { | |
935ffeec | 681 | write_status(NULL, 1, LCD_ON); |
6b7091e7 | 682 | lcd_blank(FB_BLANK_UNBLANK); |
8def05fa | 683 | } else if (event == ATKD_LCD_OFF) { |
935ffeec | 684 | write_status(NULL, 0, LCD_ON); |
6b7091e7 CC |
685 | lcd_blank(FB_BLANK_POWERDOWN); |
686 | } | |
687 | ||
85091b71 CC |
688 | acpi_bus_generate_event(hotk->device, event, |
689 | hotk->event_count[event % 128]++); | |
690 | ||
691 | return; | |
692 | } | |
693 | ||
694 | #define ASUS_CREATE_DEVICE_ATTR(_name) \ | |
695 | struct device_attribute dev_attr_##_name = { \ | |
696 | .attr = { \ | |
697 | .name = __stringify(_name), \ | |
698 | .mode = 0, \ | |
699 | .owner = THIS_MODULE }, \ | |
700 | .show = NULL, \ | |
701 | .store = NULL, \ | |
702 | } | |
703 | ||
704 | #define ASUS_SET_DEVICE_ATTR(_name, _mode, _show, _store) \ | |
705 | do { \ | |
706 | dev_attr_##_name.attr.mode = _mode; \ | |
707 | dev_attr_##_name.show = _show; \ | |
708 | dev_attr_##_name.store = _store; \ | |
709 | } while(0) | |
710 | ||
711 | static ASUS_CREATE_DEVICE_ATTR(infos); | |
4564de17 CC |
712 | static ASUS_CREATE_DEVICE_ATTR(wlan); |
713 | static ASUS_CREATE_DEVICE_ATTR(bluetooth); | |
78127b4a | 714 | static ASUS_CREATE_DEVICE_ATTR(display); |
722ad971 | 715 | static ASUS_CREATE_DEVICE_ATTR(ledd); |
8b857353 CC |
716 | static ASUS_CREATE_DEVICE_ATTR(ls_switch); |
717 | static ASUS_CREATE_DEVICE_ATTR(ls_level); | |
85091b71 CC |
718 | |
719 | static struct attribute *asuspf_attributes[] = { | |
8def05fa LB |
720 | &dev_attr_infos.attr, |
721 | &dev_attr_wlan.attr, | |
722 | &dev_attr_bluetooth.attr, | |
723 | &dev_attr_display.attr, | |
724 | &dev_attr_ledd.attr, | |
725 | &dev_attr_ls_switch.attr, | |
726 | &dev_attr_ls_level.attr, | |
727 | NULL | |
85091b71 CC |
728 | }; |
729 | ||
730 | static struct attribute_group asuspf_attribute_group = { | |
8def05fa | 731 | .attrs = asuspf_attributes |
85091b71 CC |
732 | }; |
733 | ||
734 | static struct platform_driver asuspf_driver = { | |
8def05fa LB |
735 | .driver = { |
736 | .name = ASUS_HOTK_FILE, | |
737 | .owner = THIS_MODULE, | |
738 | } | |
85091b71 CC |
739 | }; |
740 | ||
741 | static struct platform_device *asuspf_device; | |
742 | ||
85091b71 CC |
743 | static void asus_hotk_add_fs(void) |
744 | { | |
745 | ASUS_SET_DEVICE_ATTR(infos, 0444, show_infos, NULL); | |
4564de17 CC |
746 | |
747 | if (wl_switch_handle) | |
748 | ASUS_SET_DEVICE_ATTR(wlan, 0644, show_wlan, store_wlan); | |
749 | ||
750 | if (bt_switch_handle) | |
751 | ASUS_SET_DEVICE_ATTR(bluetooth, 0644, | |
752 | show_bluetooth, store_bluetooth); | |
78127b4a CC |
753 | |
754 | if (display_set_handle && display_get_handle) | |
755 | ASUS_SET_DEVICE_ATTR(display, 0644, show_disp, store_disp); | |
8def05fa | 756 | else if (display_set_handle) |
78127b4a CC |
757 | ASUS_SET_DEVICE_ATTR(display, 0200, NULL, store_disp); |
758 | ||
722ad971 CC |
759 | if (ledd_set_handle) |
760 | ASUS_SET_DEVICE_ATTR(ledd, 0644, show_ledd, store_ledd); | |
761 | ||
8b857353 CC |
762 | if (ls_switch_handle && ls_level_handle) { |
763 | ASUS_SET_DEVICE_ATTR(ls_level, 0644, show_lslvl, store_lslvl); | |
764 | ASUS_SET_DEVICE_ATTR(ls_switch, 0644, show_lssw, store_lssw); | |
765 | } | |
85091b71 CC |
766 | } |
767 | ||
8def05fa | 768 | static int asus_handle_init(char *name, acpi_handle * handle, |
85091b71 CC |
769 | char **paths, int num_paths) |
770 | { | |
771 | int i; | |
772 | acpi_status status; | |
773 | ||
774 | for (i = 0; i < num_paths; i++) { | |
775 | status = acpi_get_handle(NULL, paths[i], handle); | |
776 | if (ACPI_SUCCESS(status)) | |
777 | return 0; | |
778 | } | |
779 | ||
780 | *handle = NULL; | |
781 | return -ENODEV; | |
782 | } | |
783 | ||
784 | #define ASUS_HANDLE_INIT(object) \ | |
785 | asus_handle_init(#object, &object##_handle, object##_paths, \ | |
786 | ARRAY_SIZE(object##_paths)) | |
787 | ||
85091b71 CC |
788 | /* |
789 | * This function is used to initialize the hotk with right values. In this | |
790 | * method, we can make all the detection we want, and modify the hotk struct | |
791 | */ | |
792 | static int asus_hotk_get_info(void) | |
793 | { | |
794 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
85091b71 | 795 | union acpi_object *model = NULL; |
9a816850 | 796 | ulong bsts_result, hwrs_result; |
85091b71 CC |
797 | char *string = NULL; |
798 | acpi_status status; | |
799 | ||
800 | /* | |
801 | * Get DSDT headers early enough to allow for differentiating between | |
802 | * models, but late enough to allow acpi_bus_register_driver() to fail | |
803 | * before doing anything ACPI-specific. Should we encounter a machine, | |
804 | * which needs special handling (i.e. its hotkey device has a different | |
805 | * HID), this bit will be moved. A global variable asus_info contains | |
806 | * the DSDT header. | |
807 | */ | |
894d79be | 808 | status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus_info); |
85091b71 CC |
809 | if (ACPI_FAILURE(status)) |
810 | printk(ASUS_WARNING "Couldn't get the DSDT table header\n"); | |
85091b71 CC |
811 | |
812 | /* We have to write 0 on init this far for all ASUS models */ | |
813 | if (!write_acpi_int(hotk->handle, "INIT", 0, &buffer)) { | |
814 | printk(ASUS_ERR "Hotkey initialization failed\n"); | |
815 | return -ENODEV; | |
816 | } | |
817 | ||
818 | /* This needs to be called for some laptops to init properly */ | |
9a816850 CC |
819 | status = |
820 | acpi_evaluate_integer(hotk->handle, "BSTS", NULL, &bsts_result); | |
821 | if (ACPI_FAILURE(status)) | |
85091b71 CC |
822 | printk(ASUS_WARNING "Error calling BSTS\n"); |
823 | else if (bsts_result) | |
824 | printk(ASUS_NOTICE "BSTS called, 0x%02x returned\n", | |
9a816850 | 825 | (uint) bsts_result); |
85091b71 | 826 | |
185e5af9 CC |
827 | /* This too ... */ |
828 | write_acpi_int(hotk->handle, "CWAP", wapf, NULL); | |
829 | ||
85091b71 CC |
830 | /* |
831 | * Try to match the object returned by INIT to the specific model. | |
832 | * Handle every possible object (or the lack of thereof) the DSDT | |
833 | * writers might throw at us. When in trouble, we pass NULL to | |
834 | * asus_model_match() and try something completely different. | |
835 | */ | |
836 | if (buffer.pointer) { | |
837 | model = buffer.pointer; | |
838 | switch (model->type) { | |
839 | case ACPI_TYPE_STRING: | |
840 | string = model->string.pointer; | |
841 | break; | |
842 | case ACPI_TYPE_BUFFER: | |
843 | string = model->buffer.pointer; | |
844 | break; | |
845 | default: | |
846 | string = ""; | |
847 | break; | |
848 | } | |
849 | } | |
850 | hotk->name = kstrdup(string, GFP_KERNEL); | |
851 | if (!hotk->name) | |
852 | return -ENOMEM; | |
853 | ||
8def05fa | 854 | if (*string) |
85091b71 CC |
855 | printk(ASUS_NOTICE " %s model detected\n", string); |
856 | ||
be18cdab CC |
857 | ASUS_HANDLE_INIT(mled_set); |
858 | ASUS_HANDLE_INIT(tled_set); | |
859 | ASUS_HANDLE_INIT(rled_set); | |
860 | ASUS_HANDLE_INIT(pled_set); | |
fdd8d080 | 861 | ASUS_HANDLE_INIT(gled_set); |
be18cdab | 862 | |
722ad971 CC |
863 | ASUS_HANDLE_INIT(ledd_set); |
864 | ||
4564de17 CC |
865 | /* |
866 | * The HWRS method return informations about the hardware. | |
867 | * 0x80 bit is for WLAN, 0x100 for Bluetooth. | |
868 | * The significance of others is yet to be found. | |
869 | * If we don't find the method, we assume the device are present. | |
870 | */ | |
9a816850 CC |
871 | status = |
872 | acpi_evaluate_integer(hotk->handle, "HRWS", NULL, &hwrs_result); | |
873 | if (ACPI_FAILURE(status)) | |
4564de17 CC |
874 | hwrs_result = WL_HWRS | BT_HWRS; |
875 | ||
8def05fa | 876 | if (hwrs_result & WL_HWRS) |
4564de17 | 877 | ASUS_HANDLE_INIT(wl_switch); |
8def05fa | 878 | if (hwrs_result & BT_HWRS) |
4564de17 CC |
879 | ASUS_HANDLE_INIT(bt_switch); |
880 | ||
881 | ASUS_HANDLE_INIT(wireless_status); | |
882 | ||
6b7091e7 CC |
883 | ASUS_HANDLE_INIT(brightness_set); |
884 | ASUS_HANDLE_INIT(brightness_get); | |
885 | ||
886 | ASUS_HANDLE_INIT(lcd_switch); | |
887 | ||
78127b4a CC |
888 | ASUS_HANDLE_INIT(display_set); |
889 | ASUS_HANDLE_INIT(display_get); | |
890 | ||
8b857353 CC |
891 | /* There is a lot of models with "ALSL", but a few get |
892 | a real light sens, so we need to check it. */ | |
8def05fa | 893 | if (ASUS_HANDLE_INIT(ls_switch)) |
8b857353 CC |
894 | ASUS_HANDLE_INIT(ls_level); |
895 | ||
85091b71 CC |
896 | kfree(model); |
897 | ||
898 | return AE_OK; | |
899 | } | |
900 | ||
901 | static int asus_hotk_check(void) | |
902 | { | |
903 | int result = 0; | |
904 | ||
905 | result = acpi_bus_get_status(hotk->device); | |
906 | if (result) | |
907 | return result; | |
908 | ||
909 | if (hotk->device->status.present) { | |
910 | result = asus_hotk_get_info(); | |
911 | } else { | |
912 | printk(ASUS_ERR "Hotkey device not present, aborting\n"); | |
913 | return -EINVAL; | |
914 | } | |
915 | ||
916 | return result; | |
917 | } | |
918 | ||
919 | static int asus_hotk_found; | |
920 | ||
921 | static int asus_hotk_add(struct acpi_device *device) | |
922 | { | |
923 | acpi_status status = AE_OK; | |
924 | int result; | |
925 | ||
926 | if (!device) | |
927 | return -EINVAL; | |
928 | ||
929 | printk(ASUS_NOTICE "Asus Laptop Support version %s\n", | |
930 | ASUS_LAPTOP_VERSION); | |
931 | ||
932 | hotk = kmalloc(sizeof(struct asus_hotk), GFP_KERNEL); | |
933 | if (!hotk) | |
934 | return -ENOMEM; | |
935 | memset(hotk, 0, sizeof(struct asus_hotk)); | |
936 | ||
937 | hotk->handle = device->handle; | |
938 | strcpy(acpi_device_name(device), ASUS_HOTK_DEVICE_NAME); | |
939 | strcpy(acpi_device_class(device), ASUS_HOTK_CLASS); | |
940 | acpi_driver_data(device) = hotk; | |
941 | hotk->device = device; | |
942 | ||
943 | result = asus_hotk_check(); | |
944 | if (result) | |
945 | goto end; | |
946 | ||
947 | asus_hotk_add_fs(); | |
948 | ||
949 | /* | |
950 | * We install the handler, it will receive the hotk in parameter, so, we | |
951 | * could add other data to the hotk struct | |
952 | */ | |
953 | status = acpi_install_notify_handler(hotk->handle, ACPI_SYSTEM_NOTIFY, | |
954 | asus_hotk_notify, hotk); | |
955 | if (ACPI_FAILURE(status)) | |
956 | printk(ASUS_ERR "Error installing notify handler\n"); | |
957 | ||
958 | asus_hotk_found = 1; | |
959 | ||
6b7091e7 | 960 | /* WLED and BLED are on by default */ |
935ffeec CC |
961 | write_status(bt_switch_handle, 1, BT_ON); |
962 | write_status(wl_switch_handle, 1, WL_ON); | |
963 | ||
964 | /* If the h/w switch is off, we need to check the real status */ | |
965 | write_status(NULL, read_status(BT_ON), BT_ON); | |
966 | write_status(NULL, read_status(WL_ON), WL_ON); | |
4564de17 | 967 | |
6b7091e7 | 968 | /* LCD Backlight is on by default */ |
935ffeec | 969 | write_status(NULL, 1, LCD_ON); |
6b7091e7 | 970 | |
722ad971 CC |
971 | /* LED display is off by default */ |
972 | hotk->ledd_status = 0xFFF; | |
973 | ||
8def05fa LB |
974 | /* Set initial values of light sensor and level */ |
975 | hotk->light_switch = 1; /* Default to light sensor disabled */ | |
976 | hotk->light_level = 0; /* level 5 for sensor sensitivity */ | |
8b857353 | 977 | |
8def05fa LB |
978 | if (ls_switch_handle) |
979 | set_light_sens_switch(hotk->light_switch); | |
8b857353 | 980 | |
8def05fa LB |
981 | if (ls_level_handle) |
982 | set_light_sens_level(hotk->light_level); | |
8b857353 | 983 | |
85091b71 CC |
984 | end: |
985 | if (result) { | |
986 | kfree(hotk->name); | |
987 | kfree(hotk); | |
988 | } | |
989 | ||
990 | return result; | |
991 | } | |
992 | ||
993 | static int asus_hotk_remove(struct acpi_device *device, int type) | |
994 | { | |
995 | acpi_status status = 0; | |
996 | ||
997 | if (!device || !acpi_driver_data(device)) | |
998 | return -EINVAL; | |
999 | ||
1000 | status = acpi_remove_notify_handler(hotk->handle, ACPI_SYSTEM_NOTIFY, | |
1001 | asus_hotk_notify); | |
1002 | if (ACPI_FAILURE(status)) | |
1003 | printk(ASUS_ERR "Error removing notify handler\n"); | |
1004 | ||
1005 | kfree(hotk->name); | |
1006 | kfree(hotk); | |
1007 | ||
1008 | return 0; | |
1009 | } | |
1010 | ||
6b7091e7 CC |
1011 | static void asus_backlight_exit(void) |
1012 | { | |
8def05fa | 1013 | if (asus_backlight_device) |
6b7091e7 CC |
1014 | backlight_device_unregister(asus_backlight_device); |
1015 | } | |
1016 | ||
be18cdab CC |
1017 | #define ASUS_LED_UNREGISTER(object) \ |
1018 | if(object##_led.class_dev \ | |
1019 | && !IS_ERR(object##_led.class_dev)) \ | |
1020 | led_classdev_unregister(&object##_led) | |
1021 | ||
1022 | static void asus_led_exit(void) | |
1023 | { | |
1024 | ASUS_LED_UNREGISTER(mled); | |
1025 | ASUS_LED_UNREGISTER(tled); | |
1026 | ASUS_LED_UNREGISTER(pled); | |
1027 | ASUS_LED_UNREGISTER(rled); | |
fdd8d080 | 1028 | ASUS_LED_UNREGISTER(gled); |
be18cdab CC |
1029 | |
1030 | destroy_workqueue(led_workqueue); | |
1031 | } | |
1032 | ||
85091b71 CC |
1033 | static void __exit asus_laptop_exit(void) |
1034 | { | |
6b7091e7 | 1035 | asus_backlight_exit(); |
be18cdab CC |
1036 | asus_led_exit(); |
1037 | ||
85091b71 | 1038 | acpi_bus_unregister_driver(&asus_hotk_driver); |
8def05fa LB |
1039 | sysfs_remove_group(&asuspf_device->dev.kobj, &asuspf_attribute_group); |
1040 | platform_device_unregister(asuspf_device); | |
1041 | platform_driver_unregister(&asuspf_driver); | |
85091b71 CC |
1042 | } |
1043 | ||
8def05fa | 1044 | static int asus_backlight_init(struct device *dev) |
6b7091e7 CC |
1045 | { |
1046 | struct backlight_device *bd; | |
1047 | ||
8def05fa LB |
1048 | if (brightness_set_handle && lcd_switch_handle) { |
1049 | bd = backlight_device_register(ASUS_HOTK_FILE, dev, | |
599a52d1 | 1050 | NULL, &asusbl_ops); |
8def05fa | 1051 | if (IS_ERR(bd)) { |
6b7091e7 CC |
1052 | printk(ASUS_ERR |
1053 | "Could not register asus backlight device\n"); | |
1054 | asus_backlight_device = NULL; | |
1055 | return PTR_ERR(bd); | |
1056 | } | |
1057 | ||
1058 | asus_backlight_device = bd; | |
1059 | ||
599a52d1 RP |
1060 | bd->props.max_brightness = 15; |
1061 | bd->props.brightness = read_brightness(NULL); | |
1062 | bd->props.power = FB_BLANK_UNBLANK; | |
28ee086d | 1063 | backlight_update_status(bd); |
6b7091e7 CC |
1064 | } |
1065 | return 0; | |
1066 | } | |
1067 | ||
be18cdab | 1068 | static int asus_led_register(acpi_handle handle, |
8def05fa | 1069 | struct led_classdev *ldev, struct device *dev) |
be18cdab | 1070 | { |
8def05fa | 1071 | if (!handle) |
be18cdab CC |
1072 | return 0; |
1073 | ||
1074 | return led_classdev_register(dev, ldev); | |
1075 | } | |
8def05fa | 1076 | |
be18cdab CC |
1077 | #define ASUS_LED_REGISTER(object, device) \ |
1078 | asus_led_register(object##_set_handle, &object##_led, device) | |
1079 | ||
8def05fa | 1080 | static int asus_led_init(struct device *dev) |
be18cdab CC |
1081 | { |
1082 | int rv; | |
1083 | ||
1084 | rv = ASUS_LED_REGISTER(mled, dev); | |
8def05fa | 1085 | if (rv) |
be18cdab CC |
1086 | return rv; |
1087 | ||
1088 | rv = ASUS_LED_REGISTER(tled, dev); | |
8def05fa | 1089 | if (rv) |
be18cdab CC |
1090 | return rv; |
1091 | ||
1092 | rv = ASUS_LED_REGISTER(rled, dev); | |
8def05fa | 1093 | if (rv) |
be18cdab CC |
1094 | return rv; |
1095 | ||
1096 | rv = ASUS_LED_REGISTER(pled, dev); | |
8def05fa | 1097 | if (rv) |
be18cdab CC |
1098 | return rv; |
1099 | ||
fdd8d080 CC |
1100 | rv = ASUS_LED_REGISTER(gled, dev); |
1101 | if (rv) | |
1102 | return rv; | |
1103 | ||
be18cdab | 1104 | led_workqueue = create_singlethread_workqueue("led_workqueue"); |
8def05fa | 1105 | if (!led_workqueue) |
be18cdab CC |
1106 | return -ENOMEM; |
1107 | ||
1108 | return 0; | |
1109 | } | |
1110 | ||
85091b71 CC |
1111 | static int __init asus_laptop_init(void) |
1112 | { | |
be18cdab | 1113 | struct device *dev; |
85091b71 CC |
1114 | int result; |
1115 | ||
1116 | if (acpi_disabled) | |
1117 | return -ENODEV; | |
1118 | ||
85091b71 CC |
1119 | result = acpi_bus_register_driver(&asus_hotk_driver); |
1120 | if (result < 0) | |
1121 | return result; | |
1122 | ||
1123 | /* | |
1124 | * This is a bit of a kludge. We only want this module loaded | |
1125 | * for ASUS systems, but there's currently no way to probe the | |
1126 | * ACPI namespace for ASUS HIDs. So we just return failure if | |
1127 | * we didn't find one, which will cause the module to be | |
1128 | * unloaded. | |
1129 | */ | |
1130 | if (!asus_hotk_found) { | |
1131 | acpi_bus_unregister_driver(&asus_hotk_driver); | |
1132 | return -ENODEV; | |
1133 | } | |
1134 | ||
be18cdab CC |
1135 | dev = acpi_get_physical_device(hotk->device->handle); |
1136 | ||
6b7091e7 | 1137 | result = asus_backlight_init(dev); |
8def05fa | 1138 | if (result) |
6b7091e7 CC |
1139 | goto fail_backlight; |
1140 | ||
be18cdab | 1141 | result = asus_led_init(dev); |
8def05fa | 1142 | if (result) |
be18cdab CC |
1143 | goto fail_led; |
1144 | ||
8def05fa | 1145 | /* Register platform stuff */ |
85091b71 | 1146 | result = platform_driver_register(&asuspf_driver); |
8def05fa LB |
1147 | if (result) |
1148 | goto fail_platform_driver; | |
85091b71 | 1149 | |
8def05fa LB |
1150 | asuspf_device = platform_device_alloc(ASUS_HOTK_FILE, -1); |
1151 | if (!asuspf_device) { | |
1152 | result = -ENOMEM; | |
1153 | goto fail_platform_device1; | |
1154 | } | |
85091b71 | 1155 | |
8def05fa LB |
1156 | result = platform_device_add(asuspf_device); |
1157 | if (result) | |
1158 | goto fail_platform_device2; | |
85091b71 | 1159 | |
8def05fa | 1160 | result = sysfs_create_group(&asuspf_device->dev.kobj, |
85091b71 | 1161 | &asuspf_attribute_group); |
8def05fa LB |
1162 | if (result) |
1163 | goto fail_sysfs; | |
85091b71 | 1164 | |
8def05fa | 1165 | return 0; |
85091b71 | 1166 | |
8def05fa LB |
1167 | fail_sysfs: |
1168 | platform_device_del(asuspf_device); | |
85091b71 | 1169 | |
8def05fa | 1170 | fail_platform_device2: |
85091b71 CC |
1171 | platform_device_put(asuspf_device); |
1172 | ||
8def05fa LB |
1173 | fail_platform_device1: |
1174 | platform_driver_unregister(&asuspf_driver); | |
85091b71 | 1175 | |
8def05fa | 1176 | fail_platform_driver: |
be18cdab CC |
1177 | asus_led_exit(); |
1178 | ||
8def05fa | 1179 | fail_led: |
6b7091e7 CC |
1180 | asus_backlight_exit(); |
1181 | ||
8def05fa | 1182 | fail_backlight: |
85091b71 CC |
1183 | |
1184 | return result; | |
1185 | } | |
1186 | ||
1187 | module_init(asus_laptop_init); | |
1188 | module_exit(asus_laptop_exit); |