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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux...
[linux/fpc-iii.git] / drivers / platform / x86 / asus-laptop.c
blobf2b5d0a8adf03a2bb5ac521aa62fa2046c06f438
1 /*
2 * asus-laptop.c - Asus Laptop Support
3 *
4 *
5 * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor
6 * Copyright (C) 2006-2007 Corentin Chary
7 * Copyright (C) 2011 Wind River Systems
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 *
24 * The development page for this driver is located at
25 * http://sourceforge.net/projects/acpi4asus/
26 *
27 * Credits:
28 * Pontus Fuchs - Helper functions, cleanup
29 * Johann Wiesner - Small compile fixes
30 * John Belmonte - ACPI code for Toshiba laptop was a good starting point.
31 * Eric Burghard - LED display support for W1N
32 * Josh Green - Light Sens support
33 * Thomas Tuttle - His first patch for led support was very helpful
34 * Sam Lin - GPS support
35 */
36
37 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
38
39 #include <linux/kernel.h>
40 #include <linux/module.h>
41 #include <linux/init.h>
42 #include <linux/types.h>
43 #include <linux/err.h>
44 #include <linux/proc_fs.h>
45 #include <linux/backlight.h>
46 #include <linux/fb.h>
47 #include <linux/leds.h>
48 #include <linux/platform_device.h>
49 #include <linux/uaccess.h>
50 #include <linux/input.h>
51 #include <linux/input/sparse-keymap.h>
52 #include <linux/input-polldev.h>
53 #include <linux/rfkill.h>
54 #include <linux/slab.h>
55 #include <linux/dmi.h>
56 #include <linux/acpi.h>
57 #include <acpi/video.h>
58
59 #define ASUS_LAPTOP_VERSION "0.42"
60
61 #define ASUS_LAPTOP_NAME "Asus Laptop Support"
62 #define ASUS_LAPTOP_CLASS "hotkey"
63 #define ASUS_LAPTOP_DEVICE_NAME "Hotkey"
64 #define ASUS_LAPTOP_FILE KBUILD_MODNAME
65 #define ASUS_LAPTOP_PREFIX "\\_SB.ATKD."
66
67 MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary");
68 MODULE_DESCRIPTION(ASUS_LAPTOP_NAME);
69 MODULE_LICENSE("GPL");
70
71 /*
72 * WAPF defines the behavior of the Fn+Fx wlan key
73 * The significance of values is yet to be found, but
74 * most of the time:
75 * Bit | Bluetooth | WLAN
76 * 0 | Hardware | Hardware
77 * 1 | Hardware | Software
78 * 4 | Software | Software
79 */
80 static uint wapf = 1;
81 module_param(wapf, uint, 0444);
82 MODULE_PARM_DESC(wapf, "WAPF value");
83
84 static char *wled_type = "unknown";
85 static char *bled_type = "unknown";
86
87 module_param(wled_type, charp, 0444);
88 MODULE_PARM_DESC(wled_type, "Set the wled type on boot "
89 "(unknown, led or rfkill). "
90 "default is unknown");
91
92 module_param(bled_type, charp, 0444);
93 MODULE_PARM_DESC(bled_type, "Set the bled type on boot "
94 "(unknown, led or rfkill). "
95 "default is unknown");
96
97 static int wlan_status = 1;
98 static int bluetooth_status = 1;
99 static int wimax_status = -1;
100 static int wwan_status = -1;
101 static int als_status;
102
103 module_param(wlan_status, int, 0444);
104 MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot "
105 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
106 "default is -1");
107
108 module_param(bluetooth_status, int, 0444);
109 MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot "
110 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
111 "default is -1");
112
113 module_param(wimax_status, int, 0444);
114 MODULE_PARM_DESC(wimax_status, "Set the wireless status on boot "
115 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
116 "default is -1");
117
118 module_param(wwan_status, int, 0444);
119 MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot "
120 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
121 "default is -1");
122
123 module_param(als_status, int, 0444);
124 MODULE_PARM_DESC(als_status, "Set the ALS status on boot "
125 "(0 = disabled, 1 = enabled). "
126 "default is 0");
127
128 /*
129 * Some events we use, same for all Asus
130 */
131 #define ATKD_BRNUP_MIN 0x10
132 #define ATKD_BRNUP_MAX 0x1f
133 #define ATKD_BRNDOWN_MIN 0x20
134 #define ATKD_BRNDOWN_MAX 0x2f
135 #define ATKD_BRNDOWN 0x20
136 #define ATKD_BRNUP 0x2f
137 #define ATKD_LCD_ON 0x33
138 #define ATKD_LCD_OFF 0x34
139
140 /*
141 * Known bits returned by \_SB.ATKD.HWRS
142 */
143 #define WL_HWRS 0x80
144 #define BT_HWRS 0x100
145
146 /*
147 * Flags for hotk status
148 * WL_ON and BT_ON are also used for wireless_status()
149 */
150 #define WL_RSTS 0x01 /* internal Wifi */
151 #define BT_RSTS 0x02 /* internal Bluetooth */
152 #define WM_RSTS 0x08 /* internal wimax */
153 #define WW_RSTS 0x20 /* internal wwan */
154
155 /* WLED and BLED type */
156 #define TYPE_UNKNOWN 0
157 #define TYPE_LED 1
158 #define TYPE_RFKILL 2
159
160 /* LED */
161 #define METHOD_MLED "MLED"
162 #define METHOD_TLED "TLED"
163 #define METHOD_RLED "RLED" /* W1JC */
164 #define METHOD_PLED "PLED" /* A7J */
165 #define METHOD_GLED "GLED" /* G1, G2 (probably) */
166
167 /* LEDD */
168 #define METHOD_LEDD "SLCM"
169
170 /*
171 * Bluetooth and WLAN
172 * WLED and BLED are not handled like other XLED, because in some dsdt
173 * they also control the WLAN/Bluetooth device.
174 */
175 #define METHOD_WLAN "WLED"
176 #define METHOD_BLUETOOTH "BLED"
177
178 /* WWAN and WIMAX */
179 #define METHOD_WWAN "GSMC"
180 #define METHOD_WIMAX "WMXC"
181
182 #define METHOD_WL_STATUS "RSTS"
183
184 /* Brightness */
185 #define METHOD_BRIGHTNESS_SET "SPLV"
186 #define METHOD_BRIGHTNESS_GET "GPLV"
187
188 /* Display */
189 #define METHOD_SWITCH_DISPLAY "SDSP"
190
191 #define METHOD_ALS_CONTROL "ALSC" /* Z71A Z71V */
192 #define METHOD_ALS_LEVEL "ALSL" /* Z71A Z71V */
193
194 /* GPS */
195 /* R2H use different handle for GPS on/off */
196 #define METHOD_GPS_ON "SDON"
197 #define METHOD_GPS_OFF "SDOF"
198 #define METHOD_GPS_STATUS "GPST"
199
200 /* Keyboard light */
201 #define METHOD_KBD_LIGHT_SET "SLKB"
202 #define METHOD_KBD_LIGHT_GET "GLKB"
203
204 /* For Pegatron Lucid tablet */
205 #define DEVICE_NAME_PEGA "Lucid"
206
207 #define METHOD_PEGA_ENABLE "ENPR"
208 #define METHOD_PEGA_DISABLE "DAPR"
209 #define PEGA_WLAN 0x00
210 #define PEGA_BLUETOOTH 0x01
211 #define PEGA_WWAN 0x02
212 #define PEGA_ALS 0x04
213 #define PEGA_ALS_POWER 0x05
214
215 #define METHOD_PEGA_READ "RDLN"
216 #define PEGA_READ_ALS_H 0x02
217 #define PEGA_READ_ALS_L 0x03
218
219 #define PEGA_ACCEL_NAME "pega_accel"
220 #define PEGA_ACCEL_DESC "Pegatron Lucid Tablet Accelerometer"
221 #define METHOD_XLRX "XLRX"
222 #define METHOD_XLRY "XLRY"
223 #define METHOD_XLRZ "XLRZ"
224 #define PEGA_ACC_CLAMP 512 /* 1G accel is reported as ~256, so clamp to 2G */
225 #define PEGA_ACC_RETRIES 3
226
227 /*
228 * Define a specific led structure to keep the main structure clean
229 */
230 struct asus_led {
231 int wk;
232 struct work_struct work;
233 struct led_classdev led;
234 struct asus_laptop *asus;
235 const char *method;
236 };
237
238 /*
239 * Same thing for rfkill
240 */
241 struct asus_rfkill {
242 /* type of control. Maps to PEGA_* values or *_RSTS */
243 int control_id;
244 struct rfkill *rfkill;
245 struct asus_laptop *asus;
246 };
247
248 /*
249 * This is the main structure, we can use it to store anything interesting
250 * about the hotk device
251 */
252 struct asus_laptop {
253 char *name; /* laptop name */
254
255 struct acpi_table_header *dsdt_info;
256 struct platform_device *platform_device;
257 struct acpi_device *device; /* the device we are in */
258 struct backlight_device *backlight_device;
259
260 struct input_dev *inputdev;
261 struct key_entry *keymap;
262 struct input_polled_dev *pega_accel_poll;
263
264 struct asus_led wled;
265 struct asus_led bled;
266 struct asus_led mled;
267 struct asus_led tled;
268 struct asus_led rled;
269 struct asus_led pled;
270 struct asus_led gled;
271 struct asus_led kled;
272 struct workqueue_struct *led_workqueue;
273
274 int wled_type;
275 int bled_type;
276 int wireless_status;
277 bool have_rsts;
278 bool is_pega_lucid;
279 bool pega_acc_live;
280 int pega_acc_x;
281 int pega_acc_y;
282 int pega_acc_z;
283
284 struct asus_rfkill wlan;
285 struct asus_rfkill bluetooth;
286 struct asus_rfkill wwan;
287 struct asus_rfkill wimax;
288 struct asus_rfkill gps;
289
290 acpi_handle handle; /* the handle of the hotk device */
291 u32 ledd_status; /* status of the LED display */
292 u8 light_level; /* light sensor level */
293 u8 light_switch; /* light sensor switch value */
294 u16 event_count[128]; /* count for each event TODO make this better */
295 };
296
297 static const struct key_entry asus_keymap[] = {
298 /* Lenovo SL Specific keycodes */
299 {KE_KEY, 0x02, { KEY_SCREENLOCK } },
300 {KE_KEY, 0x05, { KEY_WLAN } },
301 {KE_KEY, 0x08, { KEY_F13 } },
302 {KE_KEY, 0x09, { KEY_PROG2 } }, /* Dock */
303 {KE_KEY, 0x17, { KEY_ZOOM } },
304 {KE_KEY, 0x1f, { KEY_BATTERY } },
305 /* End of Lenovo SL Specific keycodes */
306 {KE_KEY, ATKD_BRNDOWN, { KEY_BRIGHTNESSDOWN } },
307 {KE_KEY, ATKD_BRNUP, { KEY_BRIGHTNESSUP } },
308 {KE_KEY, 0x30, { KEY_VOLUMEUP } },
309 {KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
310 {KE_KEY, 0x32, { KEY_MUTE } },
311 {KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
312 {KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
313 {KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
314 {KE_KEY, 0x41, { KEY_NEXTSONG } },
315 {KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
316 {KE_KEY, 0x45, { KEY_PLAYPAUSE } },
317 {KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
318 {KE_KEY, 0x50, { KEY_EMAIL } },
319 {KE_KEY, 0x51, { KEY_WWW } },
320 {KE_KEY, 0x55, { KEY_CALC } },
321 {KE_IGNORE, 0x57, }, /* Battery mode */
322 {KE_IGNORE, 0x58, }, /* AC mode */
323 {KE_KEY, 0x5C, { KEY_SCREENLOCK } }, /* Screenlock */
324 {KE_KEY, 0x5D, { KEY_WLAN } }, /* WLAN Toggle */
325 {KE_KEY, 0x5E, { KEY_WLAN } }, /* WLAN Enable */
326 {KE_KEY, 0x5F, { KEY_WLAN } }, /* WLAN Disable */
327 {KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
328 {KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
329 {KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
330 {KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
331 {KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
332 {KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
333 {KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
334 {KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
335 {KE_KEY, 0x6A, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad Fn + F9 */
336 {KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad */
337 {KE_KEY, 0x6C, { KEY_SLEEP } }, /* Suspend */
338 {KE_KEY, 0x6D, { KEY_SLEEP } }, /* Hibernate */
339 {KE_IGNORE, 0x6E, }, /* Low Battery notification */
340 {KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
341 {KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
342 {KE_KEY, 0x82, { KEY_CAMERA } },
343 {KE_KEY, 0x88, { KEY_RFKILL } }, /* Radio Toggle Key */
344 {KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
345 {KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
346 {KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
347 {KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
348 {KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
349 {KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
350 {KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
351 {KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
352 {KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
353 {KE_KEY, 0x95, { KEY_MEDIA } },
354 {KE_KEY, 0x99, { KEY_PHONE } },
355 {KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
356 {KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
357 {KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
358 {KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
359 {KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
360 {KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
361 {KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
362 {KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
363 {KE_KEY, 0xB5, { KEY_CALC } },
364 {KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
365 {KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
366 {KE_END, 0},
367 };
368
369
370 /*
371 * This function evaluates an ACPI method, given an int as parameter, the
372 * method is searched within the scope of the handle, can be NULL. The output
373 * of the method is written is output, which can also be NULL
374 *
375 * returns 0 if write is successful, -1 else.
376 */
377 static int write_acpi_int_ret(acpi_handle handle, const char *method, int val,
378 struct acpi_buffer *output)
379 {
380 struct acpi_object_list params; /* list of input parameters (an int) */
381 union acpi_object in_obj; /* the only param we use */
382 acpi_status status;
383
384 if (!handle)
385 return -1;
386
387 params.count = 1;
388 params.pointer = &in_obj;
389 in_obj.type = ACPI_TYPE_INTEGER;
390 in_obj.integer.value = val;
391
392 status = acpi_evaluate_object(handle, (char *)method, &params, output);
393 if (status == AE_OK)
394 return 0;
395 else
396 return -1;
397 }
398
399 static int write_acpi_int(acpi_handle handle, const char *method, int val)
400 {
401 return write_acpi_int_ret(handle, method, val, NULL);
402 }
403
404 static int acpi_check_handle(acpi_handle handle, const char *method,
405 acpi_handle *ret)
406 {
407 acpi_status status;
408
409 if (method == NULL)
410 return -ENODEV;
411
412 if (ret)
413 status = acpi_get_handle(handle, (char *)method,
414 ret);
415 else {
416 acpi_handle dummy;
417
418 status = acpi_get_handle(handle, (char *)method,
419 &dummy);
420 }
421
422 if (status != AE_OK) {
423 if (ret)
424 pr_warn("Error finding %s\n", method);
425 return -ENODEV;
426 }
427 return 0;
428 }
429
430 static bool asus_check_pega_lucid(struct asus_laptop *asus)
431 {
432 return !strcmp(asus->name, DEVICE_NAME_PEGA) &&
433 !acpi_check_handle(asus->handle, METHOD_PEGA_ENABLE, NULL) &&
434 !acpi_check_handle(asus->handle, METHOD_PEGA_DISABLE, NULL) &&
435 !acpi_check_handle(asus->handle, METHOD_PEGA_READ, NULL);
436 }
437
438 static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable)
439 {
440 char *method = enable ? METHOD_PEGA_ENABLE : METHOD_PEGA_DISABLE;
441 return write_acpi_int(asus->handle, method, unit);
442 }
443
444 static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method)
445 {
446 int i, delta;
447 unsigned long long val;
448 for (i = 0; i < PEGA_ACC_RETRIES; i++) {
449 acpi_evaluate_integer(asus->handle, method, NULL, &val);
450
451 /* The output is noisy. From reading the ASL
452 * dissassembly, timeout errors are returned with 1's
453 * in the high word, and the lack of locking around
454 * thei hi/lo byte reads means that a transition
455 * between (for example) -1 and 0 could be read as
456 * 0xff00 or 0x00ff. */
457 delta = abs(curr - (short)val);
458 if (delta < 128 && !(val & ~0xffff))
459 break;
460 }
461 return clamp_val((short)val, -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP);
462 }
463
464 static void pega_accel_poll(struct input_polled_dev *ipd)
465 {
466 struct device *parent = ipd->input->dev.parent;
467 struct asus_laptop *asus = dev_get_drvdata(parent);
468
469 /* In some cases, the very first call to poll causes a
470 * recursive fault under the polldev worker. This is
471 * apparently related to very early userspace access to the
472 * device, and perhaps a firmware bug. Fake the first report. */
473 if (!asus->pega_acc_live) {
474 asus->pega_acc_live = true;
475 input_report_abs(ipd->input, ABS_X, 0);
476 input_report_abs(ipd->input, ABS_Y, 0);
477 input_report_abs(ipd->input, ABS_Z, 0);
478 input_sync(ipd->input);
479 return;
480 }
481
482 asus->pega_acc_x = pega_acc_axis(asus, asus->pega_acc_x, METHOD_XLRX);
483 asus->pega_acc_y = pega_acc_axis(asus, asus->pega_acc_y, METHOD_XLRY);
484 asus->pega_acc_z = pega_acc_axis(asus, asus->pega_acc_z, METHOD_XLRZ);
485
486 /* Note transform, convert to "right/up/out" in the native
487 * landscape orientation (i.e. the vector is the direction of
488 * "real up" in the device's cartiesian coordinates). */
489 input_report_abs(ipd->input, ABS_X, -asus->pega_acc_x);
490 input_report_abs(ipd->input, ABS_Y, -asus->pega_acc_y);
491 input_report_abs(ipd->input, ABS_Z, asus->pega_acc_z);
492 input_sync(ipd->input);
493 }
494
495 static void pega_accel_exit(struct asus_laptop *asus)
496 {
497 if (asus->pega_accel_poll) {
498 input_unregister_polled_device(asus->pega_accel_poll);
499 input_free_polled_device(asus->pega_accel_poll);
500 }
501 asus->pega_accel_poll = NULL;
502 }
503
504 static int pega_accel_init(struct asus_laptop *asus)
505 {
506 int err;
507 struct input_polled_dev *ipd;
508
509 if (!asus->is_pega_lucid)
510 return -ENODEV;
511
512 if (acpi_check_handle(asus->handle, METHOD_XLRX, NULL) ||
513 acpi_check_handle(asus->handle, METHOD_XLRY, NULL) ||
514 acpi_check_handle(asus->handle, METHOD_XLRZ, NULL))
515 return -ENODEV;
516
517 ipd = input_allocate_polled_device();
518 if (!ipd)
519 return -ENOMEM;
520
521 ipd->poll = pega_accel_poll;
522 ipd->poll_interval = 125;
523 ipd->poll_interval_min = 50;
524 ipd->poll_interval_max = 2000;
525
526 ipd->input->name = PEGA_ACCEL_DESC;
527 ipd->input->phys = PEGA_ACCEL_NAME "/input0";
528 ipd->input->dev.parent = &asus->platform_device->dev;
529 ipd->input->id.bustype = BUS_HOST;
530
531 set_bit(EV_ABS, ipd->input->evbit);
532 input_set_abs_params(ipd->input, ABS_X,
533 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
534 input_set_abs_params(ipd->input, ABS_Y,
535 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
536 input_set_abs_params(ipd->input, ABS_Z,
537 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
538
539 err = input_register_polled_device(ipd);
540 if (err)
541 goto exit;
542
543 asus->pega_accel_poll = ipd;
544 return 0;
545
546 exit:
547 input_free_polled_device(ipd);
548 return err;
549 }
550
551 /* Generic LED function */
552 static int asus_led_set(struct asus_laptop *asus, const char *method,
553 int value)
554 {
555 if (!strcmp(method, METHOD_MLED))
556 value = !value;
557 else if (!strcmp(method, METHOD_GLED))
558 value = !value + 1;
559 else
560 value = !!value;
561
562 return write_acpi_int(asus->handle, method, value);
563 }
564
565 /*
566 * LEDs
567 */
568 /* /sys/class/led handlers */
569 static void asus_led_cdev_set(struct led_classdev *led_cdev,
570 enum led_brightness value)
571 {
572 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
573 struct asus_laptop *asus = led->asus;
574
575 led->wk = !!value;
576 queue_work(asus->led_workqueue, &led->work);
577 }
578
579 static void asus_led_cdev_update(struct work_struct *work)
580 {
581 struct asus_led *led = container_of(work, struct asus_led, work);
582 struct asus_laptop *asus = led->asus;
583
584 asus_led_set(asus, led->method, led->wk);
585 }
586
587 static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev)
588 {
589 return led_cdev->brightness;
590 }
591
592 /*
593 * Keyboard backlight (also a LED)
594 */
595 static int asus_kled_lvl(struct asus_laptop *asus)
596 {
597 unsigned long long kblv;
598 struct acpi_object_list params;
599 union acpi_object in_obj;
600 acpi_status rv;
601
602 params.count = 1;
603 params.pointer = &in_obj;
604 in_obj.type = ACPI_TYPE_INTEGER;
605 in_obj.integer.value = 2;
606
607 rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET,
608 &params, &kblv);
609 if (ACPI_FAILURE(rv)) {
610 pr_warn("Error reading kled level\n");
611 return -ENODEV;
612 }
613 return kblv;
614 }
615
616 static int asus_kled_set(struct asus_laptop *asus, int kblv)
617 {
618 if (kblv > 0)
619 kblv = (1 << 7) | (kblv & 0x7F);
620 else
621 kblv = 0;
622
623 if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) {
624 pr_warn("Keyboard LED display write failed\n");
625 return -EINVAL;
626 }
627 return 0;
628 }
629
630 static void asus_kled_cdev_set(struct led_classdev *led_cdev,
631 enum led_brightness value)
632 {
633 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
634 struct asus_laptop *asus = led->asus;
635
636 led->wk = value;
637 queue_work(asus->led_workqueue, &led->work);
638 }
639
640 static void asus_kled_cdev_update(struct work_struct *work)
641 {
642 struct asus_led *led = container_of(work, struct asus_led, work);
643 struct asus_laptop *asus = led->asus;
644
645 asus_kled_set(asus, led->wk);
646 }
647
648 static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev)
649 {
650 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
651 struct asus_laptop *asus = led->asus;
652
653 return asus_kled_lvl(asus);
654 }
655
656 static void asus_led_exit(struct asus_laptop *asus)
657 {
658 if (!IS_ERR_OR_NULL(asus->wled.led.dev))
659 led_classdev_unregister(&asus->wled.led);
660 if (!IS_ERR_OR_NULL(asus->bled.led.dev))
661 led_classdev_unregister(&asus->bled.led);
662 if (!IS_ERR_OR_NULL(asus->mled.led.dev))
663 led_classdev_unregister(&asus->mled.led);
664 if (!IS_ERR_OR_NULL(asus->tled.led.dev))
665 led_classdev_unregister(&asus->tled.led);
666 if (!IS_ERR_OR_NULL(asus->pled.led.dev))
667 led_classdev_unregister(&asus->pled.led);
668 if (!IS_ERR_OR_NULL(asus->rled.led.dev))
669 led_classdev_unregister(&asus->rled.led);
670 if (!IS_ERR_OR_NULL(asus->gled.led.dev))
671 led_classdev_unregister(&asus->gled.led);
672 if (!IS_ERR_OR_NULL(asus->kled.led.dev))
673 led_classdev_unregister(&asus->kled.led);
674 if (asus->led_workqueue) {
675 destroy_workqueue(asus->led_workqueue);
676 asus->led_workqueue = NULL;
677 }
678 }
679
680 /* Ugly macro, need to fix that later */
681 static int asus_led_register(struct asus_laptop *asus,
682 struct asus_led *led,
683 const char *name, const char *method)
684 {
685 struct led_classdev *led_cdev = &led->led;
686
687 if (!method || acpi_check_handle(asus->handle, method, NULL))
688 return 0; /* Led not present */
689
690 led->asus = asus;
691 led->method = method;
692
693 INIT_WORK(&led->work, asus_led_cdev_update);
694 led_cdev->name = name;
695 led_cdev->brightness_set = asus_led_cdev_set;
696 led_cdev->brightness_get = asus_led_cdev_get;
697 led_cdev->max_brightness = 1;
698 return led_classdev_register(&asus->platform_device->dev, led_cdev);
699 }
700
701 static int asus_led_init(struct asus_laptop *asus)
702 {
703 int r = 0;
704
705 /*
706 * The Pegatron Lucid has no physical leds, but all methods are
707 * available in the DSDT...
708 */
709 if (asus->is_pega_lucid)
710 return 0;
711
712 /*
713 * Functions that actually update the LED's are called from a
714 * workqueue. By doing this as separate work rather than when the LED
715 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
716 * potentially bad time, such as a timer interrupt.
717 */
718 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
719 if (!asus->led_workqueue)
720 return -ENOMEM;
721
722 if (asus->wled_type == TYPE_LED)
723 r = asus_led_register(asus, &asus->wled, "asus::wlan",
724 METHOD_WLAN);
725 if (r)
726 goto error;
727 if (asus->bled_type == TYPE_LED)
728 r = asus_led_register(asus, &asus->bled, "asus::bluetooth",
729 METHOD_BLUETOOTH);
730 if (r)
731 goto error;
732 r = asus_led_register(asus, &asus->mled, "asus::mail", METHOD_MLED);
733 if (r)
734 goto error;
735 r = asus_led_register(asus, &asus->tled, "asus::touchpad", METHOD_TLED);
736 if (r)
737 goto error;
738 r = asus_led_register(asus, &asus->rled, "asus::record", METHOD_RLED);
739 if (r)
740 goto error;
741 r = asus_led_register(asus, &asus->pled, "asus::phone", METHOD_PLED);
742 if (r)
743 goto error;
744 r = asus_led_register(asus, &asus->gled, "asus::gaming", METHOD_GLED);
745 if (r)
746 goto error;
747 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL) &&
748 !acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL)) {
749 struct asus_led *led = &asus->kled;
750 struct led_classdev *cdev = &led->led;
751
752 led->asus = asus;
753
754 INIT_WORK(&led->work, asus_kled_cdev_update);
755 cdev->name = "asus::kbd_backlight";
756 cdev->brightness_set = asus_kled_cdev_set;
757 cdev->brightness_get = asus_kled_cdev_get;
758 cdev->max_brightness = 3;
759 r = led_classdev_register(&asus->platform_device->dev, cdev);
760 }
761 error:
762 if (r)
763 asus_led_exit(asus);
764 return r;
765 }
766
767 /*
768 * Backlight device
769 */
770 static int asus_read_brightness(struct backlight_device *bd)
771 {
772 struct asus_laptop *asus = bl_get_data(bd);
773 unsigned long long value;
774 acpi_status rv = AE_OK;
775
776 rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET,
777 NULL, &value);
778 if (ACPI_FAILURE(rv))
779 pr_warn("Error reading brightness\n");
780
781 return value;
782 }
783
784 static int asus_set_brightness(struct backlight_device *bd, int value)
785 {
786 struct asus_laptop *asus = bl_get_data(bd);
787
788 if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) {
789 pr_warn("Error changing brightness\n");
790 return -EIO;
791 }
792 return 0;
793 }
794
795 static int update_bl_status(struct backlight_device *bd)
796 {
797 int value = bd->props.brightness;
798
799 return asus_set_brightness(bd, value);
800 }
801
802 static const struct backlight_ops asusbl_ops = {
803 .get_brightness = asus_read_brightness,
804 .update_status = update_bl_status,
805 };
806
807 static int asus_backlight_notify(struct asus_laptop *asus)
808 {
809 struct backlight_device *bd = asus->backlight_device;
810 int old = bd->props.brightness;
811
812 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
813
814 return old;
815 }
816
817 static int asus_backlight_init(struct asus_laptop *asus)
818 {
819 struct backlight_device *bd;
820 struct backlight_properties props;
821
822 if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) ||
823 acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL))
824 return 0;
825
826 memset(&props, 0, sizeof(struct backlight_properties));
827 props.max_brightness = 15;
828 props.type = BACKLIGHT_PLATFORM;
829
830 bd = backlight_device_register(ASUS_LAPTOP_FILE,
831 &asus->platform_device->dev, asus,
832 &asusbl_ops, &props);
833 if (IS_ERR(bd)) {
834 pr_err("Could not register asus backlight device\n");
835 asus->backlight_device = NULL;
836 return PTR_ERR(bd);
837 }
838
839 asus->backlight_device = bd;
840 bd->props.brightness = asus_read_brightness(bd);
841 bd->props.power = FB_BLANK_UNBLANK;
842 backlight_update_status(bd);
843 return 0;
844 }
845
846 static void asus_backlight_exit(struct asus_laptop *asus)
847 {
848 backlight_device_unregister(asus->backlight_device);
849 asus->backlight_device = NULL;
850 }
851
852 /*
853 * Platform device handlers
854 */
855
856 /*
857 * We write our info in page, we begin at offset off and cannot write more
858 * than count bytes. We set eof to 1 if we handle those 2 values. We return the
859 * number of bytes written in page
860 */
861 static ssize_t infos_show(struct device *dev, struct device_attribute *attr,
862 char *page)
863 {
864 struct asus_laptop *asus = dev_get_drvdata(dev);
865 int len = 0;
866 unsigned long long temp;
867 char buf[16]; /* enough for all info */
868 acpi_status rv = AE_OK;
869
870 /*
871 * We use the easy way, we don't care of off and count,
872 * so we don't set eof to 1
873 */
874
875 len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n");
876 len += sprintf(page + len, "Model reference : %s\n", asus->name);
877 /*
878 * The SFUN method probably allows the original driver to get the list
879 * of features supported by a given model. For now, 0x0100 or 0x0800
880 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
881 * The significance of others is yet to be found.
882 */
883 rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp);
884 if (!ACPI_FAILURE(rv))
885 len += sprintf(page + len, "SFUN value : %#x\n",
886 (uint) temp);
887 /*
888 * The HWRS method return informations about the hardware.
889 * 0x80 bit is for WLAN, 0x100 for Bluetooth.
890 * 0x40 for WWAN, 0x10 for WIMAX.
891 * The significance of others is yet to be found.
892 * We don't currently use this for device detection, and it
893 * takes several seconds to run on some systems.
894 */
895 rv = acpi_evaluate_integer(asus->handle, "HWRS", NULL, &temp);
896 if (!ACPI_FAILURE(rv))
897 len += sprintf(page + len, "HWRS value : %#x\n",
898 (uint) temp);
899 /*
900 * Another value for userspace: the ASYM method returns 0x02 for
901 * battery low and 0x04 for battery critical, its readings tend to be
902 * more accurate than those provided by _BST.
903 * Note: since not all the laptops provide this method, errors are
904 * silently ignored.
905 */
906 rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp);
907 if (!ACPI_FAILURE(rv))
908 len += sprintf(page + len, "ASYM value : %#x\n",
909 (uint) temp);
910 if (asus->dsdt_info) {
911 snprintf(buf, 16, "%d", asus->dsdt_info->length);
912 len += sprintf(page + len, "DSDT length : %s\n", buf);
913 snprintf(buf, 16, "%d", asus->dsdt_info->checksum);
914 len += sprintf(page + len, "DSDT checksum : %s\n", buf);
915 snprintf(buf, 16, "%d", asus->dsdt_info->revision);
916 len += sprintf(page + len, "DSDT revision : %s\n", buf);
917 snprintf(buf, 7, "%s", asus->dsdt_info->oem_id);
918 len += sprintf(page + len, "OEM id : %s\n", buf);
919 snprintf(buf, 9, "%s", asus->dsdt_info->oem_table_id);
920 len += sprintf(page + len, "OEM table id : %s\n", buf);
921 snprintf(buf, 16, "%x", asus->dsdt_info->oem_revision);
922 len += sprintf(page + len, "OEM revision : 0x%s\n", buf);
923 snprintf(buf, 5, "%s", asus->dsdt_info->asl_compiler_id);
924 len += sprintf(page + len, "ASL comp vendor id : %s\n", buf);
925 snprintf(buf, 16, "%x", asus->dsdt_info->asl_compiler_revision);
926 len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf);
927 }
928
929 return len;
930 }
931 static DEVICE_ATTR_RO(infos);
932
933 static int parse_arg(const char *buf, unsigned long count, int *val)
934 {
935 if (!count)
936 return 0;
937 if (count > 31)
938 return -EINVAL;
939 if (sscanf(buf, "%i", val) != 1)
940 return -EINVAL;
941 return count;
942 }
943
944 static ssize_t sysfs_acpi_set(struct asus_laptop *asus,
945 const char *buf, size_t count,
946 const char *method)
947 {
948 int rv, value;
949 int out = 0;
950
951 rv = parse_arg(buf, count, &value);
952 if (rv > 0)
953 out = value ? 1 : 0;
954
955 if (write_acpi_int(asus->handle, method, value))
956 return -ENODEV;
957 return rv;
958 }
959
960 /*
961 * LEDD display
962 */
963 static ssize_t ledd_show(struct device *dev, struct device_attribute *attr,
964 char *buf)
965 {
966 struct asus_laptop *asus = dev_get_drvdata(dev);
967
968 return sprintf(buf, "0x%08x\n", asus->ledd_status);
969 }
970
971 static ssize_t ledd_store(struct device *dev, struct device_attribute *attr,
972 const char *buf, size_t count)
973 {
974 struct asus_laptop *asus = dev_get_drvdata(dev);
975 int rv, value;
976
977 rv = parse_arg(buf, count, &value);
978 if (rv > 0) {
979 if (write_acpi_int(asus->handle, METHOD_LEDD, value)) {
980 pr_warn("LED display write failed\n");
981 return -ENODEV;
982 }
983 asus->ledd_status = (u32) value;
984 }
985 return rv;
986 }
987 static DEVICE_ATTR_RW(ledd);
988
989 /*
990 * Wireless
991 */
992 static int asus_wireless_status(struct asus_laptop *asus, int mask)
993 {
994 unsigned long long status;
995 acpi_status rv = AE_OK;
996
997 if (!asus->have_rsts)
998 return (asus->wireless_status & mask) ? 1 : 0;
999
1000 rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS,
1001 NULL, &status);
1002 if (ACPI_FAILURE(rv)) {
1003 pr_warn("Error reading Wireless status\n");
1004 return -EINVAL;
1005 }
1006 return !!(status & mask);
1007 }
1008
1009 /*
1010 * WLAN
1011 */
1012 static int asus_wlan_set(struct asus_laptop *asus, int status)
1013 {
1014 if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) {
1015 pr_warn("Error setting wlan status to %d\n", status);
1016 return -EIO;
1017 }
1018 return 0;
1019 }
1020
1021 static ssize_t wlan_show(struct device *dev, struct device_attribute *attr,
1022 char *buf)
1023 {
1024 struct asus_laptop *asus = dev_get_drvdata(dev);
1025
1026 return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS));
1027 }
1028
1029 static ssize_t wlan_store(struct device *dev, struct device_attribute *attr,
1030 const char *buf, size_t count)
1031 {
1032 struct asus_laptop *asus = dev_get_drvdata(dev);
1033
1034 return sysfs_acpi_set(asus, buf, count, METHOD_WLAN);
1035 }
1036 static DEVICE_ATTR_RW(wlan);
1037
1038 /*e
1039 * Bluetooth
1040 */
1041 static int asus_bluetooth_set(struct asus_laptop *asus, int status)
1042 {
1043 if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) {
1044 pr_warn("Error setting bluetooth status to %d\n", status);
1045 return -EIO;
1046 }
1047 return 0;
1048 }
1049
1050 static ssize_t bluetooth_show(struct device *dev, struct device_attribute *attr,
1051 char *buf)
1052 {
1053 struct asus_laptop *asus = dev_get_drvdata(dev);
1054
1055 return sprintf(buf, "%d\n", asus_wireless_status(asus, BT_RSTS));
1056 }
1057
1058 static ssize_t bluetooth_store(struct device *dev,
1059 struct device_attribute *attr, const char *buf,
1060 size_t count)
1061 {
1062 struct asus_laptop *asus = dev_get_drvdata(dev);
1063
1064 return sysfs_acpi_set(asus, buf, count, METHOD_BLUETOOTH);
1065 }
1066 static DEVICE_ATTR_RW(bluetooth);
1067
1068 /*
1069 * Wimax
1070 */
1071 static int asus_wimax_set(struct asus_laptop *asus, int status)
1072 {
1073 if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) {
1074 pr_warn("Error setting wimax status to %d\n", status);
1075 return -EIO;
1076 }
1077 return 0;
1078 }
1079
1080 static ssize_t wimax_show(struct device *dev, struct device_attribute *attr,
1081 char *buf)
1082 {
1083 struct asus_laptop *asus = dev_get_drvdata(dev);
1084
1085 return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS));
1086 }
1087
1088 static ssize_t wimax_store(struct device *dev, struct device_attribute *attr,
1089 const char *buf, size_t count)
1090 {
1091 struct asus_laptop *asus = dev_get_drvdata(dev);
1092
1093 return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX);
1094 }
1095 static DEVICE_ATTR_RW(wimax);
1096
1097 /*
1098 * Wwan
1099 */
1100 static int asus_wwan_set(struct asus_laptop *asus, int status)
1101 {
1102 if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) {
1103 pr_warn("Error setting wwan status to %d\n", status);
1104 return -EIO;
1105 }
1106 return 0;
1107 }
1108
1109 static ssize_t wwan_show(struct device *dev, struct device_attribute *attr,
1110 char *buf)
1111 {
1112 struct asus_laptop *asus = dev_get_drvdata(dev);
1113
1114 return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS));
1115 }
1116
1117 static ssize_t wwan_store(struct device *dev, struct device_attribute *attr,
1118 const char *buf, size_t count)
1119 {
1120 struct asus_laptop *asus = dev_get_drvdata(dev);
1121
1122 return sysfs_acpi_set(asus, buf, count, METHOD_WWAN);
1123 }
1124 static DEVICE_ATTR_RW(wwan);
1125
1126 /*
1127 * Display
1128 */
1129 static void asus_set_display(struct asus_laptop *asus, int value)
1130 {
1131 /* no sanity check needed for now */
1132 if (write_acpi_int(asus->handle, METHOD_SWITCH_DISPLAY, value))
1133 pr_warn("Error setting display\n");
1134 return;
1135 }
1136
1137 /*
1138 * Experimental support for display switching. As of now: 1 should activate
1139 * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI.
1140 * Any combination (bitwise) of these will suffice. I never actually tested 4
1141 * displays hooked up simultaneously, so be warned. See the acpi4asus README
1142 * for more info.
1143 */
1144 static ssize_t display_store(struct device *dev, struct device_attribute *attr,
1145 const char *buf, size_t count)
1146 {
1147 struct asus_laptop *asus = dev_get_drvdata(dev);
1148 int rv, value;
1149
1150 rv = parse_arg(buf, count, &value);
1151 if (rv > 0)
1152 asus_set_display(asus, value);
1153 return rv;
1154 }
1155 static DEVICE_ATTR_WO(display);
1156
1157 /*
1158 * Light Sens
1159 */
1160 static void asus_als_switch(struct asus_laptop *asus, int value)
1161 {
1162 int ret;
1163
1164 if (asus->is_pega_lucid) {
1165 ret = asus_pega_lucid_set(asus, PEGA_ALS, value);
1166 if (!ret)
1167 ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value);
1168 } else {
1169 ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value);
1170 }
1171 if (ret)
1172 pr_warning("Error setting light sensor switch\n");
1173
1174 asus->light_switch = value;
1175 }
1176
1177 static ssize_t ls_switch_show(struct device *dev, struct device_attribute *attr,
1178 char *buf)
1179 {
1180 struct asus_laptop *asus = dev_get_drvdata(dev);
1181
1182 return sprintf(buf, "%d\n", asus->light_switch);
1183 }
1184
1185 static ssize_t ls_switch_store(struct device *dev,
1186 struct device_attribute *attr, const char *buf,
1187 size_t count)
1188 {
1189 struct asus_laptop *asus = dev_get_drvdata(dev);
1190 int rv, value;
1191
1192 rv = parse_arg(buf, count, &value);
1193 if (rv > 0)
1194 asus_als_switch(asus, value ? 1 : 0);
1195
1196 return rv;
1197 }
1198 static DEVICE_ATTR_RW(ls_switch);
1199
1200 static void asus_als_level(struct asus_laptop *asus, int value)
1201 {
1202 if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value))
1203 pr_warn("Error setting light sensor level\n");
1204 asus->light_level = value;
1205 }
1206
1207 static ssize_t ls_level_show(struct device *dev, struct device_attribute *attr,
1208 char *buf)
1209 {
1210 struct asus_laptop *asus = dev_get_drvdata(dev);
1211
1212 return sprintf(buf, "%d\n", asus->light_level);
1213 }
1214
1215 static ssize_t ls_level_store(struct device *dev, struct device_attribute *attr,
1216 const char *buf, size_t count)
1217 {
1218 struct asus_laptop *asus = dev_get_drvdata(dev);
1219 int rv, value;
1220
1221 rv = parse_arg(buf, count, &value);
1222 if (rv > 0) {
1223 value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
1224 /* 0 <= value <= 15 */
1225 asus_als_level(asus, value);
1226 }
1227
1228 return rv;
1229 }
1230 static DEVICE_ATTR_RW(ls_level);
1231
1232 static int pega_int_read(struct asus_laptop *asus, int arg, int *result)
1233 {
1234 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1235 int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg,
1236 &buffer);
1237 if (!err) {
1238 union acpi_object *obj = buffer.pointer;
1239 if (obj && obj->type == ACPI_TYPE_INTEGER)
1240 *result = obj->integer.value;
1241 else
1242 err = -EIO;
1243 }
1244 return err;
1245 }
1246
1247 static ssize_t ls_value_show(struct device *dev, struct device_attribute *attr,
1248 char *buf)
1249 {
1250 struct asus_laptop *asus = dev_get_drvdata(dev);
1251 int err, hi, lo;
1252
1253 err = pega_int_read(asus, PEGA_READ_ALS_H, &hi);
1254 if (!err)
1255 err = pega_int_read(asus, PEGA_READ_ALS_L, &lo);
1256 if (!err)
1257 return sprintf(buf, "%d\n", 10 * hi + lo);
1258 return err;
1259 }
1260 static DEVICE_ATTR_RO(ls_value);
1261
1262 /*
1263 * GPS
1264 */
1265 static int asus_gps_status(struct asus_laptop *asus)
1266 {
1267 unsigned long long status;
1268 acpi_status rv = AE_OK;
1269
1270 rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS,
1271 NULL, &status);
1272 if (ACPI_FAILURE(rv)) {
1273 pr_warn("Error reading GPS status\n");
1274 return -ENODEV;
1275 }
1276 return !!status;
1277 }
1278
1279 static int asus_gps_switch(struct asus_laptop *asus, int status)
1280 {
1281 const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF;
1282
1283 if (write_acpi_int(asus->handle, meth, 0x02))
1284 return -ENODEV;
1285 return 0;
1286 }
1287
1288 static ssize_t gps_show(struct device *dev, struct device_attribute *attr,
1289 char *buf)
1290 {
1291 struct asus_laptop *asus = dev_get_drvdata(dev);
1292
1293 return sprintf(buf, "%d\n", asus_gps_status(asus));
1294 }
1295
1296 static ssize_t gps_store(struct device *dev, struct device_attribute *attr,
1297 const char *buf, size_t count)
1298 {
1299 struct asus_laptop *asus = dev_get_drvdata(dev);
1300 int rv, value;
1301 int ret;
1302
1303 rv = parse_arg(buf, count, &value);
1304 if (rv <= 0)
1305 return -EINVAL;
1306 ret = asus_gps_switch(asus, !!value);
1307 if (ret)
1308 return ret;
1309 rfkill_set_sw_state(asus->gps.rfkill, !value);
1310 return rv;
1311 }
1312 static DEVICE_ATTR_RW(gps);
1313
1314 /*
1315 * rfkill
1316 */
1317 static int asus_gps_rfkill_set(void *data, bool blocked)
1318 {
1319 struct asus_laptop *asus = data;
1320
1321 return asus_gps_switch(asus, !blocked);
1322 }
1323
1324 static const struct rfkill_ops asus_gps_rfkill_ops = {
1325 .set_block = asus_gps_rfkill_set,
1326 };
1327
1328 static int asus_rfkill_set(void *data, bool blocked)
1329 {
1330 struct asus_rfkill *rfk = data;
1331 struct asus_laptop *asus = rfk->asus;
1332
1333 if (rfk->control_id == WL_RSTS)
1334 return asus_wlan_set(asus, !blocked);
1335 else if (rfk->control_id == BT_RSTS)
1336 return asus_bluetooth_set(asus, !blocked);
1337 else if (rfk->control_id == WM_RSTS)
1338 return asus_wimax_set(asus, !blocked);
1339 else if (rfk->control_id == WW_RSTS)
1340 return asus_wwan_set(asus, !blocked);
1341
1342 return -EINVAL;
1343 }
1344
1345 static const struct rfkill_ops asus_rfkill_ops = {
1346 .set_block = asus_rfkill_set,
1347 };
1348
1349 static void asus_rfkill_terminate(struct asus_rfkill *rfk)
1350 {
1351 if (!rfk->rfkill)
1352 return ;
1353
1354 rfkill_unregister(rfk->rfkill);
1355 rfkill_destroy(rfk->rfkill);
1356 rfk->rfkill = NULL;
1357 }
1358
1359 static void asus_rfkill_exit(struct asus_laptop *asus)
1360 {
1361 asus_rfkill_terminate(&asus->wwan);
1362 asus_rfkill_terminate(&asus->bluetooth);
1363 asus_rfkill_terminate(&asus->wlan);
1364 asus_rfkill_terminate(&asus->gps);
1365 }
1366
1367 static int asus_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
1368 const char *name, int control_id, int type,
1369 const struct rfkill_ops *ops)
1370 {
1371 int result;
1372
1373 rfk->control_id = control_id;
1374 rfk->asus = asus;
1375 rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev,
1376 type, ops, rfk);
1377 if (!rfk->rfkill)
1378 return -EINVAL;
1379
1380 result = rfkill_register(rfk->rfkill);
1381 if (result) {
1382 rfkill_destroy(rfk->rfkill);
1383 rfk->rfkill = NULL;
1384 }
1385
1386 return result;
1387 }
1388
1389 static int asus_rfkill_init(struct asus_laptop *asus)
1390 {
1391 int result = 0;
1392
1393 if (asus->is_pega_lucid)
1394 return -ENODEV;
1395
1396 if (!acpi_check_handle(asus->handle, METHOD_GPS_ON, NULL) &&
1397 !acpi_check_handle(asus->handle, METHOD_GPS_OFF, NULL) &&
1398 !acpi_check_handle(asus->handle, METHOD_GPS_STATUS, NULL))
1399 result = asus_rfkill_setup(asus, &asus->gps, "asus-gps",
1400 -1, RFKILL_TYPE_GPS,
1401 &asus_gps_rfkill_ops);
1402 if (result)
1403 goto exit;
1404
1405
1406 if (!acpi_check_handle(asus->handle, METHOD_WLAN, NULL) &&
1407 asus->wled_type == TYPE_RFKILL)
1408 result = asus_rfkill_setup(asus, &asus->wlan, "asus-wlan",
1409 WL_RSTS, RFKILL_TYPE_WLAN,
1410 &asus_rfkill_ops);
1411 if (result)
1412 goto exit;
1413
1414 if (!acpi_check_handle(asus->handle, METHOD_BLUETOOTH, NULL) &&
1415 asus->bled_type == TYPE_RFKILL)
1416 result = asus_rfkill_setup(asus, &asus->bluetooth,
1417 "asus-bluetooth", BT_RSTS,
1418 RFKILL_TYPE_BLUETOOTH,
1419 &asus_rfkill_ops);
1420 if (result)
1421 goto exit;
1422
1423 if (!acpi_check_handle(asus->handle, METHOD_WWAN, NULL))
1424 result = asus_rfkill_setup(asus, &asus->wwan, "asus-wwan",
1425 WW_RSTS, RFKILL_TYPE_WWAN,
1426 &asus_rfkill_ops);
1427 if (result)
1428 goto exit;
1429
1430 if (!acpi_check_handle(asus->handle, METHOD_WIMAX, NULL))
1431 result = asus_rfkill_setup(asus, &asus->wimax, "asus-wimax",
1432 WM_RSTS, RFKILL_TYPE_WIMAX,
1433 &asus_rfkill_ops);
1434 if (result)
1435 goto exit;
1436
1437 exit:
1438 if (result)
1439 asus_rfkill_exit(asus);
1440
1441 return result;
1442 }
1443
1444 static int pega_rfkill_set(void *data, bool blocked)
1445 {
1446 struct asus_rfkill *rfk = data;
1447
1448 int ret = asus_pega_lucid_set(rfk->asus, rfk->control_id, !blocked);
1449 return ret;
1450 }
1451
1452 static const struct rfkill_ops pega_rfkill_ops = {
1453 .set_block = pega_rfkill_set,
1454 };
1455
1456 static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
1457 const char *name, int controlid, int rfkill_type)
1458 {
1459 return asus_rfkill_setup(asus, rfk, name, controlid, rfkill_type,
1460 &pega_rfkill_ops);
1461 }
1462
1463 static int pega_rfkill_init(struct asus_laptop *asus)
1464 {
1465 int ret = 0;
1466
1467 if(!asus->is_pega_lucid)
1468 return -ENODEV;
1469
1470 ret = pega_rfkill_setup(asus, &asus->wlan, "pega-wlan",
1471 PEGA_WLAN, RFKILL_TYPE_WLAN);
1472 if(ret)
1473 goto exit;
1474
1475 ret = pega_rfkill_setup(asus, &asus->bluetooth, "pega-bt",
1476 PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH);
1477 if(ret)
1478 goto exit;
1479
1480 ret = pega_rfkill_setup(asus, &asus->wwan, "pega-wwan",
1481 PEGA_WWAN, RFKILL_TYPE_WWAN);
1482
1483 exit:
1484 if (ret)
1485 asus_rfkill_exit(asus);
1486
1487 return ret;
1488 }
1489
1490 /*
1491 * Input device (i.e. hotkeys)
1492 */
1493 static void asus_input_notify(struct asus_laptop *asus, int event)
1494 {
1495 if (!asus->inputdev)
1496 return ;
1497 if (!sparse_keymap_report_event(asus->inputdev, event, 1, true))
1498 pr_info("Unknown key %x pressed\n", event);
1499 }
1500
1501 static int asus_input_init(struct asus_laptop *asus)
1502 {
1503 struct input_dev *input;
1504 int error;
1505
1506 input = input_allocate_device();
1507 if (!input)
1508 return -ENOMEM;
1509
1510 input->name = "Asus Laptop extra buttons";
1511 input->phys = ASUS_LAPTOP_FILE "/input0";
1512 input->id.bustype = BUS_HOST;
1513 input->dev.parent = &asus->platform_device->dev;
1514
1515 error = sparse_keymap_setup(input, asus_keymap, NULL);
1516 if (error) {
1517 pr_err("Unable to setup input device keymap\n");
1518 goto err_free_dev;
1519 }
1520 error = input_register_device(input);
1521 if (error) {
1522 pr_warn("Unable to register input device\n");
1523 goto err_free_keymap;
1524 }
1525
1526 asus->inputdev = input;
1527 return 0;
1528
1529 err_free_keymap:
1530 sparse_keymap_free(input);
1531 err_free_dev:
1532 input_free_device(input);
1533 return error;
1534 }
1535
1536 static void asus_input_exit(struct asus_laptop *asus)
1537 {
1538 if (asus->inputdev) {
1539 sparse_keymap_free(asus->inputdev);
1540 input_unregister_device(asus->inputdev);
1541 }
1542 asus->inputdev = NULL;
1543 }
1544
1545 /*
1546 * ACPI driver
1547 */
1548 static void asus_acpi_notify(struct acpi_device *device, u32 event)
1549 {
1550 struct asus_laptop *asus = acpi_driver_data(device);
1551 u16 count;
1552
1553 /* TODO Find a better way to handle events count. */
1554 count = asus->event_count[event % 128]++;
1555 acpi_bus_generate_netlink_event(asus->device->pnp.device_class,
1556 dev_name(&asus->device->dev), event,
1557 count);
1558
1559 if (event >= ATKD_BRNUP_MIN && event <= ATKD_BRNUP_MAX)
1560 event = ATKD_BRNUP;
1561 else if (event >= ATKD_BRNDOWN_MIN &&
1562 event <= ATKD_BRNDOWN_MAX)
1563 event = ATKD_BRNDOWN;
1564
1565 /* Brightness events are special */
1566 if (event == ATKD_BRNDOWN || event == ATKD_BRNUP) {
1567 if (asus->backlight_device != NULL) {
1568 /* Update the backlight device. */
1569 asus_backlight_notify(asus);
1570 return ;
1571 }
1572 }
1573
1574 /* Accelerometer "coarse orientation change" event */
1575 if (asus->pega_accel_poll && event == 0xEA) {
1576 kobject_uevent(&asus->pega_accel_poll->input->dev.kobj,
1577 KOBJ_CHANGE);
1578 return ;
1579 }
1580
1581 asus_input_notify(asus, event);
1582 }
1583
1584 static struct attribute *asus_attributes[] = {
1585 &dev_attr_infos.attr,
1586 &dev_attr_wlan.attr,
1587 &dev_attr_bluetooth.attr,
1588 &dev_attr_wimax.attr,
1589 &dev_attr_wwan.attr,
1590 &dev_attr_display.attr,
1591 &dev_attr_ledd.attr,
1592 &dev_attr_ls_value.attr,
1593 &dev_attr_ls_level.attr,
1594 &dev_attr_ls_switch.attr,
1595 &dev_attr_gps.attr,
1596 NULL
1597 };
1598
1599 static umode_t asus_sysfs_is_visible(struct kobject *kobj,
1600 struct attribute *attr,
1601 int idx)
1602 {
1603 struct device *dev = container_of(kobj, struct device, kobj);
1604 struct platform_device *pdev = to_platform_device(dev);
1605 struct asus_laptop *asus = platform_get_drvdata(pdev);
1606 acpi_handle handle = asus->handle;
1607 bool supported;
1608
1609 if (asus->is_pega_lucid) {
1610 /* no ls_level interface on the Lucid */
1611 if (attr == &dev_attr_ls_switch.attr)
1612 supported = true;
1613 else if (attr == &dev_attr_ls_level.attr)
1614 supported = false;
1615 else
1616 goto normal;
1617
1618 return supported ? attr->mode : 0;
1619 }
1620
1621 normal:
1622 if (attr == &dev_attr_wlan.attr) {
1623 supported = !acpi_check_handle(handle, METHOD_WLAN, NULL);
1624
1625 } else if (attr == &dev_attr_bluetooth.attr) {
1626 supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL);
1627
1628 } else if (attr == &dev_attr_display.attr) {
1629 supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL);
1630
1631 } else if (attr == &dev_attr_wimax.attr) {
1632 supported =
1633 !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL);
1634
1635 } else if (attr == &dev_attr_wwan.attr) {
1636 supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL);
1637
1638 } else if (attr == &dev_attr_ledd.attr) {
1639 supported = !acpi_check_handle(handle, METHOD_LEDD, NULL);
1640
1641 } else if (attr == &dev_attr_ls_switch.attr ||
1642 attr == &dev_attr_ls_level.attr) {
1643 supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) &&
1644 !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL);
1645 } else if (attr == &dev_attr_ls_value.attr) {
1646 supported = asus->is_pega_lucid;
1647 } else if (attr == &dev_attr_gps.attr) {
1648 supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) &&
1649 !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) &&
1650 !acpi_check_handle(handle, METHOD_GPS_STATUS, NULL);
1651 } else {
1652 supported = true;
1653 }
1654
1655 return supported ? attr->mode : 0;
1656 }
1657
1658
1659 static const struct attribute_group asus_attr_group = {
1660 .is_visible = asus_sysfs_is_visible,
1661 .attrs = asus_attributes,
1662 };
1663
1664 static int asus_platform_init(struct asus_laptop *asus)
1665 {
1666 int result;
1667
1668 asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, -1);
1669 if (!asus->platform_device)
1670 return -ENOMEM;
1671 platform_set_drvdata(asus->platform_device, asus);
1672
1673 result = platform_device_add(asus->platform_device);
1674 if (result)
1675 goto fail_platform_device;
1676
1677 result = sysfs_create_group(&asus->platform_device->dev.kobj,
1678 &asus_attr_group);
1679 if (result)
1680 goto fail_sysfs;
1681
1682 return 0;
1683
1684 fail_sysfs:
1685 platform_device_del(asus->platform_device);
1686 fail_platform_device:
1687 platform_device_put(asus->platform_device);
1688 return result;
1689 }
1690
1691 static void asus_platform_exit(struct asus_laptop *asus)
1692 {
1693 sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group);
1694 platform_device_unregister(asus->platform_device);
1695 }
1696
1697 static struct platform_driver platform_driver = {
1698 .driver = {
1699 .name = ASUS_LAPTOP_FILE,
1700 },
1701 };
1702
1703 /*
1704 * This function is used to initialize the context with right values. In this
1705 * method, we can make all the detection we want, and modify the asus_laptop
1706 * struct
1707 */
1708 static int asus_laptop_get_info(struct asus_laptop *asus)
1709 {
1710 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1711 union acpi_object *model = NULL;
1712 unsigned long long bsts_result;
1713 char *string = NULL;
1714 acpi_status status;
1715
1716 /*
1717 * Get DSDT headers early enough to allow for differentiating between
1718 * models, but late enough to allow acpi_bus_register_driver() to fail
1719 * before doing anything ACPI-specific. Should we encounter a machine,
1720 * which needs special handling (i.e. its hotkey device has a different
1721 * HID), this bit will be moved.
1722 */
1723 status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info);
1724 if (ACPI_FAILURE(status))
1725 pr_warn("Couldn't get the DSDT table header\n");
1726
1727 /* We have to write 0 on init this far for all ASUS models */
1728 if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) {
1729 pr_err("Hotkey initialization failed\n");
1730 return -ENODEV;
1731 }
1732
1733 /* This needs to be called for some laptops to init properly */
1734 status =
1735 acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result);
1736 if (ACPI_FAILURE(status))
1737 pr_warn("Error calling BSTS\n");
1738 else if (bsts_result)
1739 pr_notice("BSTS called, 0x%02x returned\n",
1740 (uint) bsts_result);
1741
1742 /* This too ... */
1743 if (write_acpi_int(asus->handle, "CWAP", wapf))
1744 pr_err("Error calling CWAP(%d)\n", wapf);
1745 /*
1746 * Try to match the object returned by INIT to the specific model.
1747 * Handle every possible object (or the lack of thereof) the DSDT
1748 * writers might throw at us. When in trouble, we pass NULL to
1749 * asus_model_match() and try something completely different.
1750 */
1751 if (buffer.pointer) {
1752 model = buffer.pointer;
1753 switch (model->type) {
1754 case ACPI_TYPE_STRING:
1755 string = model->string.pointer;
1756 break;
1757 case ACPI_TYPE_BUFFER:
1758 string = model->buffer.pointer;
1759 break;
1760 default:
1761 string = "";
1762 break;
1763 }
1764 }
1765 asus->name = kstrdup(string, GFP_KERNEL);
1766 if (!asus->name) {
1767 kfree(buffer.pointer);
1768 return -ENOMEM;
1769 }
1770
1771 if (string)
1772 pr_notice(" %s model detected\n", string);
1773
1774 if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL))
1775 asus->have_rsts = true;
1776
1777 kfree(model);
1778
1779 return AE_OK;
1780 }
1781
1782 static int asus_acpi_init(struct asus_laptop *asus)
1783 {
1784 int result = 0;
1785
1786 result = acpi_bus_get_status(asus->device);
1787 if (result)
1788 return result;
1789 if (!asus->device->status.present) {
1790 pr_err("Hotkey device not present, aborting\n");
1791 return -ENODEV;
1792 }
1793
1794 result = asus_laptop_get_info(asus);
1795 if (result)
1796 return result;
1797
1798 if (!strcmp(bled_type, "led"))
1799 asus->bled_type = TYPE_LED;
1800 else if (!strcmp(bled_type, "rfkill"))
1801 asus->bled_type = TYPE_RFKILL;
1802
1803 if (!strcmp(wled_type, "led"))
1804 asus->wled_type = TYPE_LED;
1805 else if (!strcmp(wled_type, "rfkill"))
1806 asus->wled_type = TYPE_RFKILL;
1807
1808 if (bluetooth_status >= 0)
1809 asus_bluetooth_set(asus, !!bluetooth_status);
1810
1811 if (wlan_status >= 0)
1812 asus_wlan_set(asus, !!wlan_status);
1813
1814 if (wimax_status >= 0)
1815 asus_wimax_set(asus, !!wimax_status);
1816
1817 if (wwan_status >= 0)
1818 asus_wwan_set(asus, !!wwan_status);
1819
1820 /* Keyboard Backlight is on by default */
1821 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL))
1822 asus_kled_set(asus, 1);
1823
1824 /* LED display is off by default */
1825 asus->ledd_status = 0xFFF;
1826
1827 /* Set initial values of light sensor and level */
1828 asus->light_switch = !!als_status;
1829 asus->light_level = 5; /* level 5 for sensor sensitivity */
1830
1831 if (asus->is_pega_lucid) {
1832 asus_als_switch(asus, asus->light_switch);
1833 } else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) &&
1834 !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) {
1835 asus_als_switch(asus, asus->light_switch);
1836 asus_als_level(asus, asus->light_level);
1837 }
1838
1839 return result;
1840 }
1841
1842 static void asus_dmi_check(void)
1843 {
1844 const char *model;
1845
1846 model = dmi_get_system_info(DMI_PRODUCT_NAME);
1847 if (!model)
1848 return;
1849
1850 /* On L1400B WLED control the sound card, don't mess with it ... */
1851 if (strncmp(model, "L1400B", 6) == 0) {
1852 wlan_status = -1;
1853 }
1854 }
1855
1856 static bool asus_device_present;
1857
1858 static int asus_acpi_add(struct acpi_device *device)
1859 {
1860 struct asus_laptop *asus;
1861 int result;
1862
1863 pr_notice("Asus Laptop Support version %s\n",
1864 ASUS_LAPTOP_VERSION);
1865 asus = kzalloc(sizeof(struct asus_laptop), GFP_KERNEL);
1866 if (!asus)
1867 return -ENOMEM;
1868 asus->handle = device->handle;
1869 strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME);
1870 strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS);
1871 device->driver_data = asus;
1872 asus->device = device;
1873
1874 asus_dmi_check();
1875
1876 result = asus_acpi_init(asus);
1877 if (result)
1878 goto fail_platform;
1879
1880 /*
1881 * Need platform type detection first, then the platform
1882 * device. It is used as a parent for the sub-devices below.
1883 */
1884 asus->is_pega_lucid = asus_check_pega_lucid(asus);
1885 result = asus_platform_init(asus);
1886 if (result)
1887 goto fail_platform;
1888
1889 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1890 result = asus_backlight_init(asus);
1891 if (result)
1892 goto fail_backlight;
1893 }
1894
1895 result = asus_input_init(asus);
1896 if (result)
1897 goto fail_input;
1898
1899 result = asus_led_init(asus);
1900 if (result)
1901 goto fail_led;
1902
1903 result = asus_rfkill_init(asus);
1904 if (result && result != -ENODEV)
1905 goto fail_rfkill;
1906
1907 result = pega_accel_init(asus);
1908 if (result && result != -ENODEV)
1909 goto fail_pega_accel;
1910
1911 result = pega_rfkill_init(asus);
1912 if (result && result != -ENODEV)
1913 goto fail_pega_rfkill;
1914
1915 asus_device_present = true;
1916 return 0;
1917
1918 fail_pega_rfkill:
1919 pega_accel_exit(asus);
1920 fail_pega_accel:
1921 asus_rfkill_exit(asus);
1922 fail_rfkill:
1923 asus_led_exit(asus);
1924 fail_led:
1925 asus_input_exit(asus);
1926 fail_input:
1927 asus_backlight_exit(asus);
1928 fail_backlight:
1929 asus_platform_exit(asus);
1930 fail_platform:
1931 kfree(asus);
1932
1933 return result;
1934 }
1935
1936 static int asus_acpi_remove(struct acpi_device *device)
1937 {
1938 struct asus_laptop *asus = acpi_driver_data(device);
1939
1940 asus_backlight_exit(asus);
1941 asus_rfkill_exit(asus);
1942 asus_led_exit(asus);
1943 asus_input_exit(asus);
1944 pega_accel_exit(asus);
1945 asus_platform_exit(asus);
1946
1947 kfree(asus->name);
1948 kfree(asus);
1949 return 0;
1950 }
1951
1952 static const struct acpi_device_id asus_device_ids[] = {
1953 {"ATK0100", 0},
1954 {"ATK0101", 0},
1955 {"", 0},
1956 };
1957 MODULE_DEVICE_TABLE(acpi, asus_device_ids);
1958
1959 static struct acpi_driver asus_acpi_driver = {
1960 .name = ASUS_LAPTOP_NAME,
1961 .class = ASUS_LAPTOP_CLASS,
1962 .owner = THIS_MODULE,
1963 .ids = asus_device_ids,
1964 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1965 .ops = {
1966 .add = asus_acpi_add,
1967 .remove = asus_acpi_remove,
1968 .notify = asus_acpi_notify,
1969 },
1970 };
1971
1972 static int __init asus_laptop_init(void)
1973 {
1974 int result;
1975
1976 result = platform_driver_register(&platform_driver);
1977 if (result < 0)
1978 return result;
1979
1980 result = acpi_bus_register_driver(&asus_acpi_driver);
1981 if (result < 0)
1982 goto fail_acpi_driver;
1983 if (!asus_device_present) {
1984 result = -ENODEV;
1985 goto fail_no_device;
1986 }
1987 return 0;
1988
1989 fail_no_device:
1990 acpi_bus_unregister_driver(&asus_acpi_driver);
1991 fail_acpi_driver:
1992 platform_driver_unregister(&platform_driver);
1993 return result;
1994 }
1995
1996 static void __exit asus_laptop_exit(void)
1997 {
1998 acpi_bus_unregister_driver(&asus_acpi_driver);
1999 platform_driver_unregister(&platform_driver);
2000 }
2001
2002 module_init(asus_laptop_init);
2003 module_exit(asus_laptop_exit);
Linux with added FPC-III support