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Merge branch 'broonie/spi-next' of git://git.kernel.org/pub/scm/linux/kernel/git...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / platform / x86 / asus-laptop.c
CommitLineData
85091b71
CC		 1/*
2 * asus-laptop.c - Asus Laptop Support
3 *
4 *
5 * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor
8ec555c2 6 * Copyright (C) 2006-2007 Corentin Chary
8819de7f 7 * Copyright (C) 2011 Wind River Systems
85091b71
CC		 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
c8440336 33 * Thomas Tuttle - His first patch for led support was very helpful
e539c2f6 34 * Sam Lin - GPS support
85091b71
CC		 35 */
36
2fcc23da
CC		 37#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
38
85091b71
CC		 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>
6b7091e7
CC		 45#include <linux/backlight.h>
46#include <linux/fb.h>
be18cdab 47#include <linux/leds.h>
85091b71 48#include <linux/platform_device.h>
060cbce6 49#include <linux/uaccess.h>
034ce90a 50#include <linux/input.h>
66a71dd1 51#include <linux/input/sparse-keymap.h>
8819de7f 52#include <linux/input-polldev.h>
18e1311e 53#include <linux/rfkill.h>
5a0e3ad6 54#include <linux/slab.h>
af96f877 55#include <linux/dmi.h>
060cbce6
CC		 56#include <acpi/acpi_drivers.h>
57#include <acpi/acpi_bus.h>
85091b71 58
91687cc8 59#define ASUS_LAPTOP_VERSION "0.42"
85091b71 60
50a90c4d
CC		 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."
85091b71 66
85091b71 67MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary");
50a90c4d 68MODULE_DESCRIPTION(ASUS_LAPTOP_NAME);
85091b71
CC		 69MODULE_LICENSE("GPL");
70
be966660
CC		 71/*
72 * WAPF defines the behavior of the Fn+Fx wlan key
185e5af9
CC		 73 * The significance of values is yet to be found, but
74 * most of the time:
fddbfed5
CC		 75 * Bit | Bluetooth | WLAN
76 * 0 | Hardware | Hardware
77 * 1 | Hardware | Software
78 * 4 | Software | Software
185e5af9
CC		 79 */
80static uint wapf = 1;
c26d85cb 81module_param(wapf, uint, 0444);
185e5af9
CC		 82MODULE_PARM_DESC(wapf, "WAPF value");
83
774b0678
CC		 84static char *wled_type = "unknown";
85static char *bled_type = "unknown";
86
87module_param(wled_type, charp, 0444);
3f5449bf 88MODULE_PARM_DESC(wled_type, "Set the wled type on boot "
774b0678
CC		 89 "(unknown, led or rfkill). "
90 "default is unknown");
91
92module_param(bled_type, charp, 0444);
93MODULE_PARM_DESC(bled_type, "Set the bled type on boot "
94 "(unknown, led or rfkill). "
95 "default is unknown");
96
668f4a03
DC		 97static int wlan_status = 1;
98static int bluetooth_status = 1;
ba1ff5be
CC		 99static int wimax_status = -1;
100static int wwan_status = -1;
abec04db 101static int als_status;
0e875f49 102
c26d85cb 103module_param(wlan_status, int, 0444);
d0930a2d 104MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot "
0e875f49 105 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
16cbf933 106 "default is -1");
0e875f49 107
c26d85cb 108module_param(bluetooth_status, int, 0444);
0e875f49
CC		 109MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot "
110 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
16cbf933 111 "default is -1");
0e875f49 112
ba1ff5be
CC		 113module_param(wimax_status, int, 0444);
114MODULE_PARM_DESC(wimax_status, "Set the wireless status on boot "
115 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
16cbf933 116 "default is -1");
ba1ff5be
CC		 117
118module_param(wwan_status, int, 0444);
119MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot "
120 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
16cbf933 121 "default is -1");
ba1ff5be 122
abec04db
AR		 123module_param(als_status, int, 0444);
124MODULE_PARM_DESC(als_status, "Set the ALS status on boot "
125 "(0 = disabled, 1 = enabled). "
126 "default is 0");
127
be4ee82d
CC		 128/*
129 * Some events we use, same for all Asus
130 */
060cbce6
CC		 131#define ATKD_BR_UP 0x10 /* (event & ~ATKD_BR_UP) = brightness level */
132#define ATKD_BR_DOWN 0x20 /* (event & ~ATKD_BR_DOWN) = britghness level */
a539df5e 133#define ATKD_BR_MIN ATKD_BR_UP
060cbce6 134#define ATKD_BR_MAX (ATKD_BR_DOWN | 0xF) /* 0x2f */
be4ee82d
CC		 135#define ATKD_LCD_ON 0x33
136#define ATKD_LCD_OFF 0x34
137
138/*
139 * Known bits returned by \_SB.ATKD.HWRS
140 */
141#define WL_HWRS 0x80
142#define BT_HWRS 0x100
143
144/*
145 * Flags for hotk status
146 * WL_ON and BT_ON are also used for wireless_status()
147 */
17e78f62
CC		 148#define WL_RSTS 0x01 /* internal Wifi */
149#define BT_RSTS 0x02 /* internal Bluetooth */
ba1ff5be
CC		 150#define WM_RSTS 0x08 /* internal wimax */
151#define WW_RSTS 0x20 /* internal wwan */
be4ee82d 152
774b0678
CC		 153/* WLED and BLED type */
154#define TYPE_UNKNOWN 0
155#define TYPE_LED 1
156#define TYPE_RFKILL 2
157
be18cdab 158/* LED */
d99b577c
CC		 159#define METHOD_MLED "MLED"
160#define METHOD_TLED "TLED"
161#define METHOD_RLED "RLED" /* W1JC */
162#define METHOD_PLED "PLED" /* A7J */
163#define METHOD_GLED "GLED" /* G1, G2 (probably) */
be18cdab 164
722ad971 165/* LEDD */
d99b577c 166#define METHOD_LEDD "SLCM"
722ad971 167
be966660
CC		 168/*
169 * Bluetooth and WLAN
4564de17
CC		 170 * WLED and BLED are not handled like other XLED, because in some dsdt
171 * they also control the WLAN/Bluetooth device.
172 */
d99b577c
CC		 173#define METHOD_WLAN "WLED"
174#define METHOD_BLUETOOTH "BLED"
ba1ff5be
CC		 175
176/* WWAN and WIMAX */
177#define METHOD_WWAN "GSMC"
178#define METHOD_WIMAX "WMXC"
179
d99b577c 180#define METHOD_WL_STATUS "RSTS"
4564de17 181
6b7091e7 182/* Brightness */
d99b577c
CC		 183#define METHOD_BRIGHTNESS_SET "SPLV"
184#define METHOD_BRIGHTNESS_GET "GPLV"
6b7091e7 185
78127b4a 186/* Display */
d99b577c 187#define METHOD_SWITCH_DISPLAY "SDSP"
060cbce6 188
d99b577c
CC		 189#define METHOD_ALS_CONTROL "ALSC" /* Z71A Z71V */
190#define METHOD_ALS_LEVEL "ALSL" /* Z71A Z71V */
8b857353 191
e539c2f6
CC		 192/* GPS */
193/* R2H use different handle for GPS on/off */
d99b577c
CC		 194#define METHOD_GPS_ON "SDON"
195#define METHOD_GPS_OFF "SDOF"
196#define METHOD_GPS_STATUS "GPST"
e539c2f6 197
b7d3fbc2 198/* Keyboard light */
d99b577c
CC		 199#define METHOD_KBD_LIGHT_SET "SLKB"
200#define METHOD_KBD_LIGHT_GET "GLKB"
b7d3fbc2 201
8819de7f
AR		 202/* For Pegatron Lucid tablet */
203#define DEVICE_NAME_PEGA "Lucid"
33989ba6 204
8819de7f
AR		 205#define METHOD_PEGA_ENABLE "ENPR"
206#define METHOD_PEGA_DISABLE "DAPR"
14908399
AA		 207#define PEGA_WLAN 0x00
208#define PEGA_BLUETOOTH 0x01
209#define PEGA_WWAN 0x02
33989ba6
AR		 210#define PEGA_ALS 0x04
211#define PEGA_ALS_POWER 0x05
212
8819de7f 213#define METHOD_PEGA_READ "RDLN"
33989ba6
AR		 214#define PEGA_READ_ALS_H 0x02
215#define PEGA_READ_ALS_L 0x03
8819de7f 216
b23910c2
AR		 217#define PEGA_ACCEL_NAME "pega_accel"
218#define PEGA_ACCEL_DESC "Pegatron Lucid Tablet Accelerometer"
219#define METHOD_XLRX "XLRX"
220#define METHOD_XLRY "XLRY"
221#define METHOD_XLRZ "XLRZ"
222#define PEGA_ACC_CLAMP 512 /* 1G accel is reported as ~256, so clamp to 2G */
223#define PEGA_ACC_RETRIES 3
224
9129d14d
CC		 225/*
226 * Define a specific led structure to keep the main structure clean
227 */
aee0afb8
CC		 228struct asus_led {
229 int wk;
230 struct work_struct work;
231 struct led_classdev led;
232 struct asus_laptop *asus;
233 const char *method;
9129d14d
CC		 234};
235
14908399
AA		 236/*
237 * Same thing for rfkill
238 */
40969c7d 239struct asus_rfkill {
774b0678
CC		 240 /* type of control. Maps to PEGA_* values or *_RSTS */
241 int control_id;
14908399
AA		 242 struct rfkill *rfkill;
243 struct asus_laptop *asus;
244};
245
85091b71
CC		 246/*
247 * This is the main structure, we can use it to store anything interesting
248 * about the hotk device
249 */
50a90c4d 250struct asus_laptop {
be966660 251 char *name; /* laptop name */
600ad520 252
7c247645 253 struct acpi_table_header *dsdt_info;
600ad520 254 struct platform_device *platform_device;
7c247645
CC		 255 struct acpi_device *device; /* the device we are in */
256 struct backlight_device *backlight_device;
9129d14d 257
7c247645 258 struct input_dev *inputdev;
9129d14d 259 struct key_entry *keymap;
b23910c2 260 struct input_polled_dev *pega_accel_poll;
9129d14d 261
774b0678
CC		 262 struct asus_led wled;
263 struct asus_led bled;
aee0afb8
CC		 264 struct asus_led mled;
265 struct asus_led tled;
266 struct asus_led rled;
267 struct asus_led pled;
268 struct asus_led gled;
269 struct asus_led kled;
270 struct workqueue_struct *led_workqueue;
7c247645 271
774b0678
CC		 272 int wled_type;
273 int bled_type;
aa9df930
CC		 274 int wireless_status;
275 bool have_rsts;
8819de7f 276 bool is_pega_lucid;
b23910c2
AR		 277 bool pega_acc_live;
278 int pega_acc_x;
279 int pega_acc_y;
280 int pega_acc_z;
aa9df930 281
40969c7d
CC		 282 struct asus_rfkill wlan;
283 struct asus_rfkill bluetooth;
284 struct asus_rfkill wwan;
3c8671ff 285 struct asus_rfkill wimax;
40969c7d 286 struct asus_rfkill gps;
14908399 287
be966660 288 acpi_handle handle; /* the handle of the hotk device */
be966660
CC		 289 u32 ledd_status; /* status of the LED display */
290 u8 light_level; /* light sensor level */
291 u8 light_switch; /* light sensor switch value */
292 u16 event_count[128]; /* count for each event TODO make this better */
85091b71
CC		 293};
294
9129d14d 295static const struct key_entry asus_keymap[] = {
a539df5e 296 /* Lenovo SL Specific keycodes */
66a71dd1
CC		 297 {KE_KEY, 0x02, { KEY_SCREENLOCK } },
298 {KE_KEY, 0x05, { KEY_WLAN } },
299 {KE_KEY, 0x08, { KEY_F13 } },
a2d5dd24 300 {KE_KEY, 0x09, { KEY_PROG2 } }, /* Dock */
66a71dd1
CC		 301 {KE_KEY, 0x17, { KEY_ZOOM } },
302 {KE_KEY, 0x1f, { KEY_BATTERY } },
a539df5e 303 /* End of Lenovo SL Specific keycodes */
66a71dd1
CC		 304 {KE_KEY, 0x30, { KEY_VOLUMEUP } },
305 {KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
306 {KE_KEY, 0x32, { KEY_MUTE } },
307 {KE_KEY, 0x33, { KEY_SWITCHVIDEOMODE } },
308 {KE_KEY, 0x34, { KEY_SWITCHVIDEOMODE } },
309 {KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
310 {KE_KEY, 0x41, { KEY_NEXTSONG } },
311 {KE_KEY, 0x43, { KEY_STOPCD } },
312 {KE_KEY, 0x45, { KEY_PLAYPAUSE } },
313 {KE_KEY, 0x4c, { KEY_MEDIA } },
314 {KE_KEY, 0x50, { KEY_EMAIL } },
315 {KE_KEY, 0x51, { KEY_WWW } },
316 {KE_KEY, 0x55, { KEY_CALC } },
317 {KE_KEY, 0x5C, { KEY_SCREENLOCK } }, /* Screenlock */
318 {KE_KEY, 0x5D, { KEY_WLAN } },
319 {KE_KEY, 0x5E, { KEY_WLAN } },
320 {KE_KEY, 0x5F, { KEY_WLAN } },
321 {KE_KEY, 0x60, { KEY_SWITCHVIDEOMODE } },
322 {KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } },
323 {KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } },
324 {KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } },
325 {KE_KEY, 0x6B, { KEY_F13 } }, /* Lock Touchpad */
a2d5dd24
CC		 326 {KE_KEY, 0x6C, { KEY_SLEEP } }, /* Suspend */
327 {KE_KEY, 0x6D, { KEY_SLEEP } }, /* Hibernate */
7f607d71
CC		 328 {KE_KEY, 0x7E, { KEY_BLUETOOTH } },
329 {KE_KEY, 0x7D, { KEY_BLUETOOTH } },
66a71dd1
CC		 330 {KE_KEY, 0x82, { KEY_CAMERA } },
331 {KE_KEY, 0x88, { KEY_WLAN } },
332 {KE_KEY, 0x8A, { KEY_PROG1 } },
333 {KE_KEY, 0x95, { KEY_MEDIA } },
334 {KE_KEY, 0x99, { KEY_PHONE } },
335 {KE_KEY, 0xc4, { KEY_KBDILLUMUP } },
336 {KE_KEY, 0xc5, { KEY_KBDILLUMDOWN } },
b58baecd 337 {KE_KEY, 0xb5, { KEY_CALC } },
034ce90a
CC		 338 {KE_END, 0},
339};
340
66a71dd1 341
85091b71
CC		 342/*
343 * This function evaluates an ACPI method, given an int as parameter, the
344 * method is searched within the scope of the handle, can be NULL. The output
345 * of the method is written is output, which can also be NULL
346 *
f8d1c94b 347 * returns 0 if write is successful, -1 else.
85091b71 348 */
d8c67323
CC		 349static int write_acpi_int_ret(acpi_handle handle, const char *method, int val,
350 struct acpi_buffer *output)
85091b71 351{
be966660
CC		 352 struct acpi_object_list params; /* list of input parameters (an int) */
353 union acpi_object in_obj; /* the only param we use */
85091b71
CC		 354 acpi_status status;
355
f8d1c94b 356 if (!handle)
9fb866f3 357 return -1;
f8d1c94b 358
85091b71
CC		 359 params.count = 1;
360 params.pointer = &in_obj;
361 in_obj.type = ACPI_TYPE_INTEGER;
362 in_obj.integer.value = val;
363
364 status = acpi_evaluate_object(handle, (char *)method, &params, output);
f8d1c94b
CC		 365 if (status == AE_OK)
366 return 0;
367 else
368 return -1;
85091b71
CC		 369}
370
d8c67323
CC		 371static int write_acpi_int(acpi_handle handle, const char *method, int val)
372{
373 return write_acpi_int_ret(handle, method, val, NULL);
374}
375
d99b577c
CC		 376static int acpi_check_handle(acpi_handle handle, const char *method,
377 acpi_handle *ret)
378{
379 acpi_status status;
380
381 if (method == NULL)
382 return -ENODEV;
383
384 if (ret)
385 status = acpi_get_handle(handle, (char *)method,
386 ret);
387 else {
388 acpi_handle dummy;
389
390 status = acpi_get_handle(handle, (char *)method,
391 &dummy);
392 }
393
394 if (status != AE_OK) {
395 if (ret)
5ad77dcf 396 pr_warn("Error finding %s\n", method);
d99b577c
CC		 397 return -ENODEV;
398 }
399 return 0;
400}
401
8819de7f
AR		 402static bool asus_check_pega_lucid(struct asus_laptop *asus)
403{
404 return !strcmp(asus->name, DEVICE_NAME_PEGA) &&
405 !acpi_check_handle(asus->handle, METHOD_PEGA_ENABLE, NULL) &&
406 !acpi_check_handle(asus->handle, METHOD_PEGA_DISABLE, NULL) &&
407 !acpi_check_handle(asus->handle, METHOD_PEGA_READ, NULL);
408}
409
33989ba6
AR		 410static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable)
411{
412 char *method = enable ? METHOD_PEGA_ENABLE : METHOD_PEGA_DISABLE;
413 return write_acpi_int(asus->handle, method, unit);
414}
415
b23910c2
AR		 416static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method)
417{
418 int i, delta;
419 unsigned long long val;
420 for (i = 0; i < PEGA_ACC_RETRIES; i++) {
421 acpi_evaluate_integer(asus->handle, method, NULL, &val);
422
423 /* The output is noisy. From reading the ASL
424 * dissassembly, timeout errors are returned with 1's
425 * in the high word, and the lack of locking around
426 * thei hi/lo byte reads means that a transition
427 * between (for example) -1 and 0 could be read as
428 * 0xff00 or 0x00ff. */
429 delta = abs(curr - (short)val);
430 if (delta < 128 && !(val & ~0xffff))
431 break;
432 }
433 return clamp_val((short)val, -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP);
434}
435
436static void pega_accel_poll(struct input_polled_dev *ipd)
437{
438 struct device *parent = ipd->input->dev.parent;
439 struct asus_laptop *asus = dev_get_drvdata(parent);
440
441 /* In some cases, the very first call to poll causes a
442 * recursive fault under the polldev worker. This is
443 * apparently related to very early userspace access to the
444 * device, and perhaps a firmware bug. Fake the first report. */
445 if (!asus->pega_acc_live) {
446 asus->pega_acc_live = true;
447 input_report_abs(ipd->input, ABS_X, 0);
448 input_report_abs(ipd->input, ABS_Y, 0);
449 input_report_abs(ipd->input, ABS_Z, 0);
450 input_sync(ipd->input);
451 return;
452 }
453
454 asus->pega_acc_x = pega_acc_axis(asus, asus->pega_acc_x, METHOD_XLRX);
455 asus->pega_acc_y = pega_acc_axis(asus, asus->pega_acc_y, METHOD_XLRY);
456 asus->pega_acc_z = pega_acc_axis(asus, asus->pega_acc_z, METHOD_XLRZ);
457
458 /* Note transform, convert to "right/up/out" in the native
459 * landscape orientation (i.e. the vector is the direction of
460 * "real up" in the device's cartiesian coordinates). */
461 input_report_abs(ipd->input, ABS_X, -asus->pega_acc_x);
462 input_report_abs(ipd->input, ABS_Y, -asus->pega_acc_y);
463 input_report_abs(ipd->input, ABS_Z, asus->pega_acc_z);
464 input_sync(ipd->input);
465}
466
467static void pega_accel_exit(struct asus_laptop *asus)
468{
469 if (asus->pega_accel_poll) {
470 input_unregister_polled_device(asus->pega_accel_poll);
471 input_free_polled_device(asus->pega_accel_poll);
472 }
473 asus->pega_accel_poll = NULL;
474}
475
476static int pega_accel_init(struct asus_laptop *asus)
477{
478 int err;
479 struct input_polled_dev *ipd;
480
481 if (!asus->is_pega_lucid)
482 return -ENODEV;
483
484 if (acpi_check_handle(asus->handle, METHOD_XLRX, NULL) ||
485 acpi_check_handle(asus->handle, METHOD_XLRY, NULL) ||
486 acpi_check_handle(asus->handle, METHOD_XLRZ, NULL))
487 return -ENODEV;
488
489 ipd = input_allocate_polled_device();
490 if (!ipd)
491 return -ENOMEM;
492
493 ipd->poll = pega_accel_poll;
494 ipd->poll_interval = 125;
495 ipd->poll_interval_min = 50;
496 ipd->poll_interval_max = 2000;
497
498 ipd->input->name = PEGA_ACCEL_DESC;
499 ipd->input->phys = PEGA_ACCEL_NAME "/input0";
500 ipd->input->dev.parent = &asus->platform_device->dev;
501 ipd->input->id.bustype = BUS_HOST;
502
503 set_bit(EV_ABS, ipd->input->evbit);
504 input_set_abs_params(ipd->input, ABS_X,
505 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
506 input_set_abs_params(ipd->input, ABS_Y,
507 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
508 input_set_abs_params(ipd->input, ABS_Z,
509 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
510
511 err = input_register_polled_device(ipd);
512 if (err)
513 goto exit;
514
515 asus->pega_accel_poll = ipd;
516 return 0;
517
518exit:
519 input_free_polled_device(ipd);
520 return err;
521}
522
17e78f62 523/* Generic LED function */
aee0afb8 524static int asus_led_set(struct asus_laptop *asus, const char *method,
17e78f62 525 int value)
be18cdab 526{
d99b577c 527 if (!strcmp(method, METHOD_MLED))
17e78f62 528 value = !value;
d99b577c 529 else if (!strcmp(method, METHOD_GLED))
17e78f62
CC		 530 value = !value + 1;
531 else
532 value = !!value;
be18cdab 533
e5593bf1 534 return write_acpi_int(asus->handle, method, value);
be18cdab
CC		 535}
536
be4ee82d
CC		 537/*
538 * LEDs
539 */
be18cdab 540/* /sys/class/led handlers */
aee0afb8
CC		 541static void asus_led_cdev_set(struct led_classdev *led_cdev,
542 enum led_brightness value)
543{
544 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
545 struct asus_laptop *asus = led->asus;
546
547 led->wk = !!value;
548 queue_work(asus->led_workqueue, &led->work);
549}
be18cdab 550
aee0afb8
CC		 551static void asus_led_cdev_update(struct work_struct *work)
552{
553 struct asus_led *led = container_of(work, struct asus_led, work);
554 struct asus_laptop *asus = led->asus;
555
556 asus_led_set(asus, led->method, led->wk);
557}
558
559static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev)
560{
561 return led_cdev->brightness;
562}
be18cdab 563
b7d3fbc2 564/*
be4ee82d 565 * Keyboard backlight (also a LED)
b7d3fbc2 566 */
d99b577c 567static int asus_kled_lvl(struct asus_laptop *asus)
b7d3fbc2
CC		 568{
569 unsigned long long kblv;
570 struct acpi_object_list params;
571 union acpi_object in_obj;
572 acpi_status rv;
573
574 params.count = 1;
575 params.pointer = &in_obj;
576 in_obj.type = ACPI_TYPE_INTEGER;
577 in_obj.integer.value = 2;
578
d99b577c
CC		 579 rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET,
580 &params, &kblv);
b7d3fbc2 581 if (ACPI_FAILURE(rv)) {
5ad77dcf 582 pr_warn("Error reading kled level\n");
4d441513 583 return -ENODEV;
b7d3fbc2
CC		 584 }
585 return kblv;
586}
587
4d441513 588static int asus_kled_set(struct asus_laptop *asus, int kblv)
b7d3fbc2
CC		 589{
590 if (kblv > 0)
591 kblv = (1 << 7) | (kblv & 0x7F);
592 else
593 kblv = 0;
594
d99b577c 595 if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) {
5ad77dcf 596 pr_warn("Keyboard LED display write failed\n");
b7d3fbc2
CC		 597 return -EINVAL;
598 }
599 return 0;
600}
601
aee0afb8
CC		 602static void asus_kled_cdev_set(struct led_classdev *led_cdev,
603 enum led_brightness value)
b7d3fbc2 604{
aee0afb8
CC		 605 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
606 struct asus_laptop *asus = led->asus;
9129d14d 607
060cbce6 608 led->wk = value;
aee0afb8 609 queue_work(asus->led_workqueue, &led->work);
b7d3fbc2
CC		 610}
611
aee0afb8 612static void asus_kled_cdev_update(struct work_struct *work)
b7d3fbc2 613{
aee0afb8
CC		 614 struct asus_led *led = container_of(work, struct asus_led, work);
615 struct asus_laptop *asus = led->asus;
9129d14d 616
aee0afb8 617 asus_kled_set(asus, led->wk);
b7d3fbc2
CC		 618}
619
aee0afb8 620static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev)
b7d3fbc2 621{
aee0afb8
CC		 622 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
623 struct asus_laptop *asus = led->asus;
d99b577c
CC		 624
625 return asus_kled_lvl(asus);
b7d3fbc2
CC		 626}
627
be4ee82d
CC		 628static void asus_led_exit(struct asus_laptop *asus)
629{
774b0678
CC		 630 if (!IS_ERR_OR_NULL(asus->wled.led.dev))
631 led_classdev_unregister(&asus->wled.led);
632 if (!IS_ERR_OR_NULL(asus->bled.led.dev))
633 led_classdev_unregister(&asus->bled.led);
8fcf71aa 634 if (!IS_ERR_OR_NULL(asus->mled.led.dev))
aee0afb8 635 led_classdev_unregister(&asus->mled.led);
8fcf71aa 636 if (!IS_ERR_OR_NULL(asus->tled.led.dev))
aee0afb8 637 led_classdev_unregister(&asus->tled.led);
8fcf71aa 638 if (!IS_ERR_OR_NULL(asus->pled.led.dev))
aee0afb8 639 led_classdev_unregister(&asus->pled.led);
8fcf71aa 640 if (!IS_ERR_OR_NULL(asus->rled.led.dev))
aee0afb8 641 led_classdev_unregister(&asus->rled.led);
8fcf71aa 642 if (!IS_ERR_OR_NULL(asus->gled.led.dev))
aee0afb8 643 led_classdev_unregister(&asus->gled.led);
8fcf71aa 644 if (!IS_ERR_OR_NULL(asus->kled.led.dev))
aee0afb8
CC		 645 led_classdev_unregister(&asus->kled.led);
646 if (asus->led_workqueue) {
647 destroy_workqueue(asus->led_workqueue);
648 asus->led_workqueue = NULL;
be4ee82d
CC		 649 }
650}
651
652/* Ugly macro, need to fix that later */
aee0afb8
CC		 653static int asus_led_register(struct asus_laptop *asus,
654 struct asus_led *led,
655 const char *name, const char *method)
656{
657 struct led_classdev *led_cdev = &led->led;
658
659 if (!method || acpi_check_handle(asus->handle, method, NULL))
060cbce6 660 return 0; /* Led not present */
aee0afb8
CC		 661
662 led->asus = asus;
663 led->method = method;
664
665 INIT_WORK(&led->work, asus_led_cdev_update);
666 led_cdev->name = name;
667 led_cdev->brightness_set = asus_led_cdev_set;
668 led_cdev->brightness_get = asus_led_cdev_get;
669 led_cdev->max_brightness = 1;
670 return led_classdev_register(&asus->platform_device->dev, led_cdev);
671}
be4ee82d
CC		 672
673static int asus_led_init(struct asus_laptop *asus)
674{
774b0678 675 int r = 0;
be4ee82d 676
8d38e42c
CC		 677 /*
678 * The Pegatron Lucid has no physical leds, but all methods are
679 * available in the DSDT...
680 */
681 if (asus->is_pega_lucid)
682 return 0;
683
be4ee82d
CC		 684 /*
685 * Functions that actually update the LED's are called from a
686 * workqueue. By doing this as separate work rather than when the LED
687 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
688 * potentially bad time, such as a timer interrupt.
689 */
aee0afb8
CC		 690 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
691 if (!asus->led_workqueue)
be4ee82d
CC		 692 return -ENOMEM;
693
774b0678
CC		 694 if (asus->wled_type == TYPE_LED)
695 r = asus_led_register(asus, &asus->wled, "asus::wlan",
696 METHOD_WLAN);
697 if (r)
698 goto error;
699 if (asus->bled_type == TYPE_LED)
700 r = asus_led_register(asus, &asus->bled, "asus::bluetooth",
701 METHOD_BLUETOOTH);
702 if (r)
703 goto error;
aee0afb8
CC		 704 r = asus_led_register(asus, &asus->mled, "asus::mail", METHOD_MLED);
705 if (r)
706 goto error;
707 r = asus_led_register(asus, &asus->tled, "asus::touchpad", METHOD_TLED);
708 if (r)
709 goto error;
710 r = asus_led_register(asus, &asus->rled, "asus::record", METHOD_RLED);
711 if (r)
712 goto error;
713 r = asus_led_register(asus, &asus->pled, "asus::phone", METHOD_PLED);
714 if (r)
715 goto error;
716 r = asus_led_register(asus, &asus->gled, "asus::gaming", METHOD_GLED);
717 if (r)
718 goto error;
d99b577c 719 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL) &&
aee0afb8
CC		 720 !acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL)) {
721 struct asus_led *led = &asus->kled;
722 struct led_classdev *cdev = &led->led;
723
724 led->asus = asus;
725
726 INIT_WORK(&led->work, asus_kled_cdev_update);
727 cdev->name = "asus::kbd_backlight";
728 cdev->brightness_set = asus_kled_cdev_set;
729 cdev->brightness_get = asus_kled_cdev_get;
730 cdev->max_brightness = 3;
731 r = led_classdev_register(&asus->platform_device->dev, cdev);
732 }
be4ee82d 733error:
aee0afb8 734 if (r)
be4ee82d 735 asus_led_exit(asus);
aee0afb8 736 return r;
be4ee82d
CC		 737}
738
739/*
740 * Backlight device
741 */
4d441513 742static int asus_read_brightness(struct backlight_device *bd)
6b7091e7 743{
d99b577c 744 struct asus_laptop *asus = bl_get_data(bd);
27663c58 745 unsigned long long value;
9a816850 746 acpi_status rv = AE_OK;
6b7091e7 747
d99b577c
CC		 748 rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET,
749 NULL, &value);
9a816850 750 if (ACPI_FAILURE(rv))
5ad77dcf 751 pr_warn("Error reading brightness\n");
6b7091e7
CC		 752
753 return value;
754}
755
4d441513 756static int asus_set_brightness(struct backlight_device *bd, int value)
6b7091e7 757{
d99b577c
CC		 758 struct asus_laptop *asus = bl_get_data(bd);
759
760 if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) {
5ad77dcf 761 pr_warn("Error changing brightness\n");
e5b50f6a 762 return -EIO;
6b7091e7 763 }
e5b50f6a 764 return 0;
6b7091e7
CC		 765}
766
767static int update_bl_status(struct backlight_device *bd)
768{
599a52d1 769 int value = bd->props.brightness;
6b7091e7 770
3b81cf9d 771 return asus_set_brightness(bd, value);
6b7091e7
CC		 772}
773
acc2472e 774static const struct backlight_ops asusbl_ops = {
4d441513 775 .get_brightness = asus_read_brightness,
be4ee82d
CC		 776 .update_status = update_bl_status,
777};
778
a539df5e
CC		 779static int asus_backlight_notify(struct asus_laptop *asus)
780{
781 struct backlight_device *bd = asus->backlight_device;
782 int old = bd->props.brightness;
783
784 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
785
786 return old;
787}
788
be4ee82d
CC		 789static int asus_backlight_init(struct asus_laptop *asus)
790{
791 struct backlight_device *bd;
a19a6ee6 792 struct backlight_properties props;
be4ee82d 793
71e687dc 794 if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) ||
3b81cf9d 795 acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL))
71e687dc 796 return 0;
be4ee82d 797
71e687dc
CC		 798 memset(&props, 0, sizeof(struct backlight_properties));
799 props.max_brightness = 15;
bb7ca747 800 props.type = BACKLIGHT_PLATFORM;
be4ee82d 801
71e687dc
CC		 802 bd = backlight_device_register(ASUS_LAPTOP_FILE,
803 &asus->platform_device->dev, asus,
804 &asusbl_ops, &props);
805 if (IS_ERR(bd)) {
806 pr_err("Could not register asus backlight device\n");
807 asus->backlight_device = NULL;
808 return PTR_ERR(bd);
be4ee82d 809 }
71e687dc
CC		 810
811 asus->backlight_device = bd;
812 bd->props.brightness = asus_read_brightness(bd);
813 bd->props.power = FB_BLANK_UNBLANK;
814 backlight_update_status(bd);
be4ee82d
CC		 815 return 0;
816}
817
818static void asus_backlight_exit(struct asus_laptop *asus)
819{
820 if (asus->backlight_device)
821 backlight_device_unregister(asus->backlight_device);
a539df5e 822 asus->backlight_device = NULL;
be4ee82d
CC		 823}
824
85091b71
CC		 825/*
826 * Platform device handlers
827 */
828
829/*
830 * We write our info in page, we begin at offset off and cannot write more
831 * than count bytes. We set eof to 1 if we handle those 2 values. We return the
832 * number of bytes written in page
833 */
834static ssize_t show_infos(struct device *dev,
8def05fa 835 struct device_attribute *attr, char *page)
85091b71 836{
9129d14d 837 struct asus_laptop *asus = dev_get_drvdata(dev);
85091b71 838 int len = 0;
27663c58 839 unsigned long long temp;
be966660 840 char buf[16]; /* enough for all info */
9a816850
CC		 841 acpi_status rv = AE_OK;
842
85091b71 843 /*
060cbce6
CC		 844 * We use the easy way, we don't care of off and count,
845 * so we don't set eof to 1
85091b71
CC		 846 */
847
50a90c4d
CC		 848 len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n");
849 len += sprintf(page + len, "Model reference : %s\n", asus->name);
85091b71
CC		 850 /*
851 * The SFUN method probably allows the original driver to get the list
852 * of features supported by a given model. For now, 0x0100 or 0x0800
853 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
854 * The significance of others is yet to be found.
855 */
50a90c4d 856 rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp);
9a816850 857 if (!ACPI_FAILURE(rv))
1d4a3800
CC		 858 len += sprintf(page + len, "SFUN value : %#x\n",
859 (uint) temp);
860 /*
861 * The HWRS method return informations about the hardware.
862 * 0x80 bit is for WLAN, 0x100 for Bluetooth.
cb7da022 863 * 0x40 for WWAN, 0x10 for WIMAX.
1d4a3800 864 * The significance of others is yet to be found.
cb7da022
BH		 865 * We don't currently use this for device detection, and it
866 * takes several seconds to run on some systems.
1d4a3800 867 */
8871e99f 868 rv = acpi_evaluate_integer(asus->handle, "HWRS", NULL, &temp);
1d4a3800 869 if (!ACPI_FAILURE(rv))
8871e99f 870 len += sprintf(page + len, "HWRS value : %#x\n",
9a816850 871 (uint) temp);
85091b71
CC		 872 /*
873 * Another value for userspace: the ASYM method returns 0x02 for
874 * battery low and 0x04 for battery critical, its readings tend to be
875 * more accurate than those provided by _BST.
876 * Note: since not all the laptops provide this method, errors are
877 * silently ignored.
878 */
50a90c4d 879 rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp);
9a816850 880 if (!ACPI_FAILURE(rv))
1d4a3800 881 len += sprintf(page + len, "ASYM value : %#x\n",
9a816850 882 (uint) temp);
7c247645
CC		 883 if (asus->dsdt_info) {
884 snprintf(buf, 16, "%d", asus->dsdt_info->length);
85091b71 885 len += sprintf(page + len, "DSDT length : %s\n", buf);
7c247645 886 snprintf(buf, 16, "%d", asus->dsdt_info->checksum);
85091b71 887 len += sprintf(page + len, "DSDT checksum : %s\n", buf);
7c247645 888 snprintf(buf, 16, "%d", asus->dsdt_info->revision);
85091b71 889 len += sprintf(page + len, "DSDT revision : %s\n", buf);
7c247645 890 snprintf(buf, 7, "%s", asus->dsdt_info->oem_id);
85091b71 891 len += sprintf(page + len, "OEM id : %s\n", buf);
7c247645 892 snprintf(buf, 9, "%s", asus->dsdt_info->oem_table_id);
85091b71 893 len += sprintf(page + len, "OEM table id : %s\n", buf);
7c247645 894 snprintf(buf, 16, "%x", asus->dsdt_info->oem_revision);
85091b71 895 len += sprintf(page + len, "OEM revision : 0x%s\n", buf);
7c247645 896 snprintf(buf, 5, "%s", asus->dsdt_info->asl_compiler_id);
85091b71 897 len += sprintf(page + len, "ASL comp vendor id : %s\n", buf);
7c247645 898 snprintf(buf, 16, "%x", asus->dsdt_info->asl_compiler_revision);
85091b71
CC		 899 len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf);
900 }
901
902 return len;
903}
904
905static int parse_arg(const char *buf, unsigned long count, int *val)
906{
907 if (!count)
908 return 0;
909 if (count > 31)
910 return -EINVAL;
911 if (sscanf(buf, "%i", val) != 1)
912 return -EINVAL;
913 return count;
914}
915
17e78f62
CC		 916static ssize_t sysfs_acpi_set(struct asus_laptop *asus,
917 const char *buf, size_t count,
d99b577c 918 const char *method)
4564de17
CC		 919{
920 int rv, value;
921 int out = 0;
922
923 rv = parse_arg(buf, count, &value);
924 if (rv > 0)
925 out = value ? 1 : 0;
926
d99b577c 927 if (write_acpi_int(asus->handle, method, value))
17e78f62 928 return -ENODEV;
4564de17
CC		 929 return rv;
930}
931
722ad971
CC		 932/*
933 * LEDD display
934 */
935static ssize_t show_ledd(struct device *dev,
936 struct device_attribute *attr, char *buf)
937{
9129d14d
CC		 938 struct asus_laptop *asus = dev_get_drvdata(dev);
939
50a90c4d 940 return sprintf(buf, "0x%08x\n", asus->ledd_status);
722ad971
CC		 941}
942
943static ssize_t store_ledd(struct device *dev, struct device_attribute *attr,
944 const char *buf, size_t count)
945{
9129d14d 946 struct asus_laptop *asus = dev_get_drvdata(dev);
722ad971
CC		 947 int rv, value;
948
949 rv = parse_arg(buf, count, &value);
950 if (rv > 0) {
6a984a06 951 if (write_acpi_int(asus->handle, METHOD_LEDD, value)) {
5ad77dcf 952 pr_warn("LED display write failed\n");
6a984a06
AL		 953 return -ENODEV;
954 }
955 asus->ledd_status = (u32) value;
722ad971
CC		 956 }
957 return rv;
958}
959
aa9df930
CC		 960/*
961 * Wireless
962 */
963static int asus_wireless_status(struct asus_laptop *asus, int mask)
964{
965 unsigned long long status;
966 acpi_status rv = AE_OK;
967
968 if (!asus->have_rsts)
969 return (asus->wireless_status & mask) ? 1 : 0;
970
d99b577c
CC		 971 rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS,
972 NULL, &status);
aa9df930 973 if (ACPI_FAILURE(rv)) {
5ad77dcf 974 pr_warn("Error reading Wireless status\n");
aa9df930
CC		 975 return -EINVAL;
976 }
977 return !!(status & mask);
978}
979
4564de17
CC		 980/*
981 * WLAN
982 */
e5593bf1
CC		 983static int asus_wlan_set(struct asus_laptop *asus, int status)
984{
985 if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) {
5ad77dcf 986 pr_warn("Error setting wlan status to %d\n", status);
e5593bf1
CC		 987 return -EIO;
988 }
989 return 0;
990}
991
4564de17
CC		 992static ssize_t show_wlan(struct device *dev,
993 struct device_attribute *attr, char *buf)
994{
9129d14d
CC		 995 struct asus_laptop *asus = dev_get_drvdata(dev);
996
17e78f62 997 return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS));
4564de17
CC		 998}
999
1000static ssize_t store_wlan(struct device *dev, struct device_attribute *attr,
1001 const char *buf, size_t count)
1002{
9129d14d
CC		 1003 struct asus_laptop *asus = dev_get_drvdata(dev);
1004
d99b577c 1005 return sysfs_acpi_set(asus, buf, count, METHOD_WLAN);
4564de17
CC		 1006}
1007
774b0678 1008/*e
4564de17
CC		 1009 * Bluetooth
1010 */
e5593bf1
CC		 1011static int asus_bluetooth_set(struct asus_laptop *asus, int status)
1012{
1013 if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) {
5ad77dcf 1014 pr_warn("Error setting bluetooth status to %d\n", status);
e5593bf1
CC		 1015 return -EIO;
1016 }
1017 return 0;
1018}
1019
4564de17
CC		 1020static ssize_t show_bluetooth(struct device *dev,
1021 struct device_attribute *attr, char *buf)
1022{
9129d14d
CC		 1023 struct asus_laptop *asus = dev_get_drvdata(dev);
1024
17e78f62 1025 return sprintf(buf, "%d\n", asus_wireless_status(asus, BT_RSTS));
4564de17
CC		 1026}
1027
8def05fa
LB		 1028static ssize_t store_bluetooth(struct device *dev,
1029 struct device_attribute *attr, const char *buf,
1030 size_t count)
4564de17 1031{
9129d14d
CC		 1032 struct asus_laptop *asus = dev_get_drvdata(dev);
1033
d99b577c 1034 return sysfs_acpi_set(asus, buf, count, METHOD_BLUETOOTH);
4564de17
CC		 1035}
1036
ba1ff5be
CC		 1037/*
1038 * Wimax
1039 */
1040static int asus_wimax_set(struct asus_laptop *asus, int status)
1041{
1042 if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) {
5ad77dcf 1043 pr_warn("Error setting wimax status to %d\n", status);
ba1ff5be
CC		 1044 return -EIO;
1045 }
1046 return 0;
1047}
1048
1049static ssize_t show_wimax(struct device *dev,
1050 struct device_attribute *attr, char *buf)
1051{
1052 struct asus_laptop *asus = dev_get_drvdata(dev);
1053
1054 return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS));
1055}
1056
1057static ssize_t store_wimax(struct device *dev,
1058 struct device_attribute *attr, const char *buf,
1059 size_t count)
1060{
1061 struct asus_laptop *asus = dev_get_drvdata(dev);
1062
1063 return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX);
1064}
1065
1066/*
1067 * Wwan
1068 */
1069static int asus_wwan_set(struct asus_laptop *asus, int status)
1070{
1071 if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) {
5ad77dcf 1072 pr_warn("Error setting wwan status to %d\n", status);
ba1ff5be
CC		 1073 return -EIO;
1074 }
1075 return 0;
1076}
1077
1078static ssize_t show_wwan(struct device *dev,
1079 struct device_attribute *attr, char *buf)
1080{
1081 struct asus_laptop *asus = dev_get_drvdata(dev);
1082
1083 return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS));
1084}
1085
1086static ssize_t store_wwan(struct device *dev,
1087 struct device_attribute *attr, const char *buf,
1088 size_t count)
1089{
1090 struct asus_laptop *asus = dev_get_drvdata(dev);
1091
1092 return sysfs_acpi_set(asus, buf, count, METHOD_WWAN);
1093}
1094
78127b4a
CC		 1095/*
1096 * Display
1097 */
4d441513 1098static void asus_set_display(struct asus_laptop *asus, int value)
78127b4a
CC		 1099{
1100 /* no sanity check needed for now */
d99b577c 1101 if (write_acpi_int(asus->handle, METHOD_SWITCH_DISPLAY, value))
5ad77dcf 1102 pr_warn("Error setting display\n");
78127b4a
CC		 1103 return;
1104}
1105
78127b4a
CC		 1106/*
1107 * Experimental support for display switching. As of now: 1 should activate
1108 * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI.
1109 * Any combination (bitwise) of these will suffice. I never actually tested 4
1110 * displays hooked up simultaneously, so be warned. See the acpi4asus README
1111 * for more info.
1112 */
1113static ssize_t store_disp(struct device *dev, struct device_attribute *attr,
1114 const char *buf, size_t count)
1115{
9129d14d 1116 struct asus_laptop *asus = dev_get_drvdata(dev);
78127b4a
CC		 1117 int rv, value;
1118
1119 rv = parse_arg(buf, count, &value);
1120 if (rv > 0)
4d441513 1121 asus_set_display(asus, value);
78127b4a
CC		 1122 return rv;
1123}
1124
8b857353
CC		 1125/*
1126 * Light Sens
1127 */
4d441513 1128static void asus_als_switch(struct asus_laptop *asus, int value)
8b857353 1129{
33989ba6
AR		 1130 int ret;
1131
1132 if (asus->is_pega_lucid) {
1133 ret = asus_pega_lucid_set(asus, PEGA_ALS, value);
1134 if (!ret)
1135 ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value);
1136 } else {
1137 ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value);
1138 }
1139 if (ret)
1140 pr_warning("Error setting light sensor switch\n");
1141
50a90c4d 1142 asus->light_switch = value;
8b857353
CC		 1143}
1144
1145static ssize_t show_lssw(struct device *dev,
1146 struct device_attribute *attr, char *buf)
1147{
9129d14d
CC		 1148 struct asus_laptop *asus = dev_get_drvdata(dev);
1149
50a90c4d 1150 return sprintf(buf, "%d\n", asus->light_switch);
8b857353
CC		 1151}
1152
1153static ssize_t store_lssw(struct device *dev, struct device_attribute *attr,
1154 const char *buf, size_t count)
1155{
9129d14d 1156 struct asus_laptop *asus = dev_get_drvdata(dev);
8b857353
CC		 1157 int rv, value;
1158
1159 rv = parse_arg(buf, count, &value);
1160 if (rv > 0)
4d441513 1161 asus_als_switch(asus, value ? 1 : 0);
8b857353
CC		 1162
1163 return rv;
1164}
1165
4d441513 1166static void asus_als_level(struct asus_laptop *asus, int value)
8b857353 1167{
d99b577c 1168 if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value))
5ad77dcf 1169 pr_warn("Error setting light sensor level\n");
50a90c4d 1170 asus->light_level = value;
8b857353
CC		 1171}
1172
1173static ssize_t show_lslvl(struct device *dev,
1174 struct device_attribute *attr, char *buf)
1175{
9129d14d
CC		 1176 struct asus_laptop *asus = dev_get_drvdata(dev);
1177
50a90c4d 1178 return sprintf(buf, "%d\n", asus->light_level);
8b857353
CC		 1179}
1180
1181static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr,
1182 const char *buf, size_t count)
1183{
9129d14d 1184 struct asus_laptop *asus = dev_get_drvdata(dev);
8b857353
CC		 1185 int rv, value;
1186
1187 rv = parse_arg(buf, count, &value);
1188 if (rv > 0) {
1189 value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
1190 /* 0 <= value <= 15 */
4d441513 1191 asus_als_level(asus, value);
8b857353
CC		 1192 }
1193
1194 return rv;
1195}
1196
33989ba6
AR		 1197static int pega_int_read(struct asus_laptop *asus, int arg, int *result)
1198{
1199 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1200 int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg,
1201 &buffer);
1202 if (!err) {
1203 union acpi_object *obj = buffer.pointer;
1204 if (obj && obj->type == ACPI_TYPE_INTEGER)
1205 *result = obj->integer.value;
1206 else
1207 err = -EIO;
1208 }
1209 return err;
1210}
1211
1212static ssize_t show_lsvalue(struct device *dev,
1213 struct device_attribute *attr, char *buf)
1214{
1215 struct asus_laptop *asus = dev_get_drvdata(dev);
1216 int err, hi, lo;
1217
1218 err = pega_int_read(asus, PEGA_READ_ALS_H, &hi);
1219 if (!err)
1220 err = pega_int_read(asus, PEGA_READ_ALS_L, &lo);
1221 if (!err)
1222 return sprintf(buf, "%d\n", 10 * hi + lo);
1223 return err;
1224}
1225
e539c2f6
CC		 1226/*
1227 * GPS
1228 */
6358bf2c
CC		 1229static int asus_gps_status(struct asus_laptop *asus)
1230{
1231 unsigned long long status;
1232 acpi_status rv = AE_OK;
1233
d99b577c
CC		 1234 rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS,
1235 NULL, &status);
6358bf2c 1236 if (ACPI_FAILURE(rv)) {
5ad77dcf 1237 pr_warn("Error reading GPS status\n");
6358bf2c
CC		 1238 return -ENODEV;
1239 }
1240 return !!status;
1241}
1242
1243static int asus_gps_switch(struct asus_laptop *asus, int status)
1244{
d99b577c 1245 const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF;
6358bf2c 1246
d99b577c 1247 if (write_acpi_int(asus->handle, meth, 0x02))
6358bf2c
CC		 1248 return -ENODEV;
1249 return 0;
1250}
1251
e539c2f6
CC		 1252static ssize_t show_gps(struct device *dev,
1253 struct device_attribute *attr, char *buf)
1254{
9129d14d
CC		 1255 struct asus_laptop *asus = dev_get_drvdata(dev);
1256
6358bf2c 1257 return sprintf(buf, "%d\n", asus_gps_status(asus));
e539c2f6
CC		 1258}
1259
1260static ssize_t store_gps(struct device *dev, struct device_attribute *attr,
1261 const char *buf, size_t count)
1262{
060cbce6 1263 struct asus_laptop *asus = dev_get_drvdata(dev);
6358bf2c
CC		 1264 int rv, value;
1265 int ret;
9129d14d 1266
6358bf2c
CC		 1267 rv = parse_arg(buf, count, &value);
1268 if (rv <= 0)
1269 return -EINVAL;
1270 ret = asus_gps_switch(asus, !!value);
1271 if (ret)
1272 return ret;
40969c7d 1273 rfkill_set_sw_state(asus->gps.rfkill, !value);
6358bf2c 1274 return rv;
e539c2f6
CC		 1275}
1276
18e1311e
CC		 1277/*
1278 * rfkill
1279 */
1280static int asus_gps_rfkill_set(void *data, bool blocked)
1281{
23f45c3a 1282 struct asus_laptop *asus = data;
18e1311e 1283
23f45c3a 1284 return asus_gps_switch(asus, !blocked);
18e1311e
CC		 1285}
1286
1287static const struct rfkill_ops asus_gps_rfkill_ops = {
1288 .set_block = asus_gps_rfkill_set,
1289};
1290
774b0678
CC		 1291static int asus_rfkill_set(void *data, bool blocked)
1292{
1293 struct asus_rfkill *rfk = data;
1294 struct asus_laptop *asus = rfk->asus;
1295
1296 if (rfk->control_id == WL_RSTS)
1297 return asus_wlan_set(asus, !blocked);
1298 else if (rfk->control_id == BT_RSTS)
1299 return asus_bluetooth_set(asus, !blocked);
3c8671ff
CC		 1300 else if (rfk->control_id == WM_RSTS)
1301 return asus_wimax_set(asus, !blocked);
1302 else if (rfk->control_id == WW_RSTS)
1303 return asus_wwan_set(asus, !blocked);
774b0678
CC		 1304
1305 return -EINVAL;
1306}
1307
1308static const struct rfkill_ops asus_rfkill_ops = {
1309 .set_block = asus_rfkill_set,
1310};
1311
40969c7d
CC		 1312static void asus_rfkill_terminate(struct asus_rfkill *rfk)
1313{
1314 if (!rfk->rfkill)
1315 return ;
1316
1317 rfkill_unregister(rfk->rfkill);
1318 rfkill_destroy(rfk->rfkill);
1319 rfk->rfkill = NULL;
1320}
1321
18e1311e
CC		 1322static void asus_rfkill_exit(struct asus_laptop *asus)
1323{
40969c7d
CC		 1324 asus_rfkill_terminate(&asus->wwan);
1325 asus_rfkill_terminate(&asus->bluetooth);
1326 asus_rfkill_terminate(&asus->wlan);
1327 asus_rfkill_terminate(&asus->gps);
18e1311e
CC		 1328}
1329
774b0678
CC		 1330static int asus_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
1331 const char *name, int control_id, int type,
1332 const struct rfkill_ops *ops)
18e1311e
CC		 1333{
1334 int result;
1335
774b0678
CC		 1336 rfk->control_id = control_id;
1337 rfk->asus = asus;
1338 rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev,
1339 type, ops, rfk);
1340 if (!rfk->rfkill)
18e1311e
CC		 1341 return -EINVAL;
1342
774b0678 1343 result = rfkill_register(rfk->rfkill);
18e1311e 1344 if (result) {
774b0678
CC		 1345 rfkill_destroy(rfk->rfkill);
1346 rfk->rfkill = NULL;
18e1311e
CC		 1347 }
1348
1349 return result;
1350}
1351
774b0678
CC		 1352static int asus_rfkill_init(struct asus_laptop *asus)
1353{
1354 int result = 0;
1355
3c8671ff
CC		 1356 if (asus->is_pega_lucid)
1357 return -ENODEV;
1358
774b0678
CC		 1359 if (!acpi_check_handle(asus->handle, METHOD_GPS_ON, NULL) &&
1360 !acpi_check_handle(asus->handle, METHOD_GPS_OFF, NULL) &&
1361 !acpi_check_handle(asus->handle, METHOD_GPS_STATUS, NULL))
1362 result = asus_rfkill_setup(asus, &asus->gps, "asus-gps",
1363 -1, RFKILL_TYPE_GPS,
1364 &asus_gps_rfkill_ops);
1365 if (result)
1366 goto exit;
1367
1368
26594dd4
CC		 1369 if (!acpi_check_handle(asus->handle, METHOD_WLAN, NULL) &&
1370 asus->wled_type == TYPE_RFKILL)
774b0678
CC		 1371 result = asus_rfkill_setup(asus, &asus->wlan, "asus-wlan",
1372 WL_RSTS, RFKILL_TYPE_WLAN,
1373 &asus_rfkill_ops);
1374 if (result)
1375 goto exit;
1376
26594dd4
CC		 1377 if (!acpi_check_handle(asus->handle, METHOD_BLUETOOTH, NULL) &&
1378 asus->bled_type == TYPE_RFKILL)
774b0678
CC		 1379 result = asus_rfkill_setup(asus, &asus->bluetooth,
1380 "asus-bluetooth", BT_RSTS,
1381 RFKILL_TYPE_BLUETOOTH,
1382 &asus_rfkill_ops);
1383 if (result)
1384 goto exit;
1385
3c8671ff
CC		 1386 if (!acpi_check_handle(asus->handle, METHOD_WWAN, NULL))
1387 result = asus_rfkill_setup(asus, &asus->wwan, "asus-wwan",
1388 WW_RSTS, RFKILL_TYPE_WWAN,
1389 &asus_rfkill_ops);
1390 if (result)
1391 goto exit;
1392
1393 if (!acpi_check_handle(asus->handle, METHOD_WIMAX, NULL))
1394 result = asus_rfkill_setup(asus, &asus->wimax, "asus-wimax",
1395 WM_RSTS, RFKILL_TYPE_WIMAX,
1396 &asus_rfkill_ops);
1397 if (result)
1398 goto exit;
1399
774b0678
CC		 1400exit:
1401 if (result)
1402 asus_rfkill_exit(asus);
1403
1404 return result;
1405}
1406
14908399
AA		 1407static int pega_rfkill_set(void *data, bool blocked)
1408{
40969c7d 1409 struct asus_rfkill *rfk = data;
14908399 1410
40969c7d 1411 int ret = asus_pega_lucid_set(rfk->asus, rfk->control_id, !blocked);
14908399
AA		 1412 return ret;
1413}
1414
1415static const struct rfkill_ops pega_rfkill_ops = {
1416 .set_block = pega_rfkill_set,
1417};
1418
40969c7d
CC		 1419static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
1420 const char *name, int controlid, int rfkill_type)
14908399 1421{
774b0678
CC		 1422 return asus_rfkill_setup(asus, rfk, name, controlid, rfkill_type,
1423 &pega_rfkill_ops);
14908399
AA		 1424}
1425
1426static int pega_rfkill_init(struct asus_laptop *asus)
1427{
1428 int ret = 0;
1429
1430 if(!asus->is_pega_lucid)
1431 return -ENODEV;
1432
40969c7d
CC		 1433 ret = pega_rfkill_setup(asus, &asus->wlan, "pega-wlan",
1434 PEGA_WLAN, RFKILL_TYPE_WLAN);
14908399 1435 if(ret)
40969c7d
CC		 1436 goto exit;
1437
1438 ret = pega_rfkill_setup(asus, &asus->bluetooth, "pega-bt",
1439 PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH);
14908399 1440 if(ret)
40969c7d 1441 goto exit;
14908399 1442
40969c7d
CC		 1443 ret = pega_rfkill_setup(asus, &asus->wwan, "pega-wwan",
1444 PEGA_WWAN, RFKILL_TYPE_WWAN);
1445
1446exit:
1447 if (ret)
1448 asus_rfkill_exit(asus);
14908399
AA		 1449
1450 return ret;
1451}
1452
034ce90a 1453/*
be4ee82d 1454 * Input device (i.e. hotkeys)
034ce90a 1455 */
be4ee82d
CC		 1456static void asus_input_notify(struct asus_laptop *asus, int event)
1457{
e0ac9133
CC		 1458 if (!asus->inputdev)
1459 return ;
1460 if (!sparse_keymap_report_event(asus->inputdev, event, 1, true))
1461 pr_info("Unknown key %x pressed\n", event);
be4ee82d
CC		 1462}
1463
1464static int asus_input_init(struct asus_laptop *asus)
1465{
66a71dd1
CC		 1466 struct input_dev *input;
1467 int error;
be4ee82d 1468
66a71dd1
CC		 1469 input = input_allocate_device();
1470 if (!input) {
40969c7d 1471 pr_warn("Unable to allocate input device\n");
45036ae1 1472 return -ENOMEM;
be4ee82d 1473 }
66a71dd1
CC		 1474 input->name = "Asus Laptop extra buttons";
1475 input->phys = ASUS_LAPTOP_FILE "/input0";
1476 input->id.bustype = BUS_HOST;
1477 input->dev.parent = &asus->platform_device->dev;
66a71dd1
CC		 1478
1479 error = sparse_keymap_setup(input, asus_keymap, NULL);
1480 if (error) {
1481 pr_err("Unable to setup input device keymap\n");
45036ae1 1482 goto err_free_dev;
be4ee82d 1483 }
66a71dd1
CC		 1484 error = input_register_device(input);
1485 if (error) {
40969c7d 1486 pr_warn("Unable to register input device\n");
45036ae1 1487 goto err_free_keymap;
be4ee82d 1488 }
66a71dd1
CC		 1489
1490 asus->inputdev = input;
1491 return 0;
1492
45036ae1 1493err_free_keymap:
66a71dd1 1494 sparse_keymap_free(input);
45036ae1 1495err_free_dev:
66a71dd1
CC		 1496 input_free_device(input);
1497 return error;
be4ee82d
CC		 1498}
1499
1500static void asus_input_exit(struct asus_laptop *asus)
1501{
66a71dd1
CC		 1502 if (asus->inputdev) {
1503 sparse_keymap_free(asus->inputdev);
be4ee82d 1504 input_unregister_device(asus->inputdev);
66a71dd1 1505 }
71e687dc 1506 asus->inputdev = NULL;
be4ee82d
CC		 1507}
1508
1509/*
1510 * ACPI driver
1511 */
600ad520 1512static void asus_acpi_notify(struct acpi_device *device, u32 event)
85091b71 1513{
9129d14d 1514 struct asus_laptop *asus = acpi_driver_data(device);
6050c8dd 1515 u16 count;
034ce90a 1516
619d8b11 1517 /* TODO Find a better way to handle events count. */
50a90c4d
CC		 1518 count = asus->event_count[event % 128]++;
1519 acpi_bus_generate_proc_event(asus->device, event, count);
1520 acpi_bus_generate_netlink_event(asus->device->pnp.device_class,
1521 dev_name(&asus->device->dev), event,
6050c8dd 1522 count);
85091b71 1523
a539df5e
CC		 1524 /* Brightness events are special */
1525 if (event >= ATKD_BR_MIN && event <= ATKD_BR_MAX) {
1526
1527 /* Ignore them completely if the acpi video driver is used */
1528 if (asus->backlight_device != NULL) {
1529 /* Update the backlight device. */
1530 asus_backlight_notify(asus);
1531 }
1532 return ;
1533 }
b93f8281
AA		 1534
1535 /* Accelerometer "coarse orientation change" event */
1536 if (asus->pega_accel_poll && event == 0xEA) {
1537 kobject_uevent(&asus->pega_accel_poll->input->dev.kobj,
1538 KOBJ_CHANGE);
1539 return ;
1540 }
1541
be4ee82d 1542 asus_input_notify(asus, event);
85091b71
CC		 1543}
1544
2a1fd64c
CC		 1545static DEVICE_ATTR(infos, S_IRUGO, show_infos, NULL);
1546static DEVICE_ATTR(wlan, S_IRUGO | S_IWUSR, show_wlan, store_wlan);
ac9b1e5b
DT		 1547static DEVICE_ATTR(bluetooth, S_IRUGO | S_IWUSR,
1548 show_bluetooth, store_bluetooth);
ba1ff5be
CC		 1549static DEVICE_ATTR(wimax, S_IRUGO | S_IWUSR, show_wimax, store_wimax);
1550static DEVICE_ATTR(wwan, S_IRUGO | S_IWUSR, show_wwan, store_wwan);
3b81cf9d 1551static DEVICE_ATTR(display, S_IWUSR, NULL, store_disp);
2a1fd64c 1552static DEVICE_ATTR(ledd, S_IRUGO | S_IWUSR, show_ledd, store_ledd);
33989ba6 1553static DEVICE_ATTR(ls_value, S_IRUGO, show_lsvalue, NULL);
2a1fd64c
CC		 1554static DEVICE_ATTR(ls_level, S_IRUGO | S_IWUSR, show_lslvl, store_lslvl);
1555static DEVICE_ATTR(ls_switch, S_IRUGO | S_IWUSR, show_lssw, store_lssw);
1556static DEVICE_ATTR(gps, S_IRUGO | S_IWUSR, show_gps, store_gps);
1557
ac9b1e5b
DT		 1558static struct attribute *asus_attributes[] = {
1559 &dev_attr_infos.attr,
1560 &dev_attr_wlan.attr,
1561 &dev_attr_bluetooth.attr,
ba1ff5be
CC		 1562 &dev_attr_wimax.attr,
1563 &dev_attr_wwan.attr,
ac9b1e5b
DT		 1564 &dev_attr_display.attr,
1565 &dev_attr_ledd.attr,
33989ba6 1566 &dev_attr_ls_value.attr,
ac9b1e5b
DT		 1567 &dev_attr_ls_level.attr,
1568 &dev_attr_ls_switch.attr,
1569 &dev_attr_gps.attr,
1570 NULL
1571};
2a1fd64c 1572
587a1f16 1573static umode_t asus_sysfs_is_visible(struct kobject *kobj,
ac9b1e5b
DT		 1574 struct attribute *attr,
1575 int idx)
2a1fd64c 1576{
ac9b1e5b
DT		 1577 struct device *dev = container_of(kobj, struct device, kobj);
1578 struct platform_device *pdev = to_platform_device(dev);
1579 struct asus_laptop *asus = platform_get_drvdata(pdev);
1580 acpi_handle handle = asus->handle;
1581 bool supported;
1582
33989ba6
AR		 1583 if (asus->is_pega_lucid) {
1584 /* no ls_level interface on the Lucid */
1585 if (attr == &dev_attr_ls_switch.attr)
1586 supported = true;
1587 else if (attr == &dev_attr_ls_level.attr)
1588 supported = false;
1589 else
1590 goto normal;
1591
1592 return supported;
1593 }
1594
1595normal:
ac9b1e5b
DT		 1596 if (attr == &dev_attr_wlan.attr) {
1597 supported = !acpi_check_handle(handle, METHOD_WLAN, NULL);
1598
1599 } else if (attr == &dev_attr_bluetooth.attr) {
1600 supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL);
1601
1602 } else if (attr == &dev_attr_display.attr) {
1603 supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL);
1604
ba1ff5be
CC		 1605 } else if (attr == &dev_attr_wimax.attr) {
1606 supported =
1607 !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL);
1608
1609 } else if (attr == &dev_attr_wwan.attr) {
1610 supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL);
1611
ac9b1e5b
DT		 1612 } else if (attr == &dev_attr_ledd.attr) {
1613 supported = !acpi_check_handle(handle, METHOD_LEDD, NULL);
1614
1615 } else if (attr == &dev_attr_ls_switch.attr ||
1616 attr == &dev_attr_ls_level.attr) {
1617 supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) &&
33989ba6
AR		 1618 !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL);
1619 } else if (attr == &dev_attr_ls_value.attr) {
1620 supported = asus->is_pega_lucid;
ac9b1e5b
DT		 1621 } else if (attr == &dev_attr_gps.attr) {
1622 supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) &&
1623 !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) &&
1624 !acpi_check_handle(handle, METHOD_GPS_STATUS, NULL);
1625 } else {
1626 supported = true;
2a1fd64c
CC		 1627 }
1628
ac9b1e5b
DT		 1629 return supported ? attr->mode : 0;
1630}
2a1fd64c 1631
2a1fd64c 1632
ac9b1e5b
DT		 1633static const struct attribute_group asus_attr_group = {
1634 .is_visible = asus_sysfs_is_visible,
1635 .attrs = asus_attributes,
1636};
85091b71 1637
9129d14d 1638static int asus_platform_init(struct asus_laptop *asus)
600ad520 1639{
71e687dc 1640 int result;
600ad520 1641
50a90c4d
CC		 1642 asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, -1);
1643 if (!asus->platform_device)
600ad520 1644 return -ENOMEM;
9129d14d 1645 platform_set_drvdata(asus->platform_device, asus);
600ad520 1646
71e687dc
CC		 1647 result = platform_device_add(asus->platform_device);
1648 if (result)
600ad520
CC		 1649 goto fail_platform_device;
1650
ac9b1e5b
DT		 1651 result = sysfs_create_group(&asus->platform_device->dev.kobj,
1652 &asus_attr_group);
71e687dc 1653 if (result)
600ad520 1654 goto fail_sysfs;
ac9b1e5b 1655
600ad520
CC		 1656 return 0;
1657
1658fail_sysfs:
50a90c4d 1659 platform_device_del(asus->platform_device);
600ad520 1660fail_platform_device:
50a90c4d 1661 platform_device_put(asus->platform_device);
71e687dc 1662 return result;
600ad520
CC		 1663}
1664
9129d14d 1665static void asus_platform_exit(struct asus_laptop *asus)
600ad520 1666{
ac9b1e5b 1667 sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group);
50a90c4d 1668 platform_device_unregister(asus->platform_device);
600ad520
CC		 1669}
1670
1671static struct platform_driver platform_driver = {
8def05fa 1672 .driver = {
9129d14d
CC		 1673 .name = ASUS_LAPTOP_FILE,
1674 .owner = THIS_MODULE,
b23910c2 1675 },
85091b71
CC		 1676};
1677
85091b71 1678/*
50a90c4d
CC		 1679 * This function is used to initialize the context with right values. In this
1680 * method, we can make all the detection we want, and modify the asus_laptop
1681 * struct
85091b71 1682 */
7c247645 1683static int asus_laptop_get_info(struct asus_laptop *asus)
85091b71
CC		 1684{
1685 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
85091b71 1686 union acpi_object *model = NULL;
cb7da022 1687 unsigned long long bsts_result;
85091b71
CC		 1688 char *string = NULL;
1689 acpi_status status;
1690
1691 /*
1692 * Get DSDT headers early enough to allow for differentiating between
1693 * models, but late enough to allow acpi_bus_register_driver() to fail
1694 * before doing anything ACPI-specific. Should we encounter a machine,
1695 * which needs special handling (i.e. its hotkey device has a different
7c247645 1696 * HID), this bit will be moved.
85091b71 1697 */
7c247645 1698 status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info);
85091b71 1699 if (ACPI_FAILURE(status))
5ad77dcf 1700 pr_warn("Couldn't get the DSDT table header\n");
85091b71
CC		 1701
1702 /* We have to write 0 on init this far for all ASUS models */
50a90c4d 1703 if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) {
2fcc23da 1704 pr_err("Hotkey initialization failed\n");
85091b71
CC		 1705 return -ENODEV;
1706 }
1707
1708 /* This needs to be called for some laptops to init properly */
9a816850 1709 status =
50a90c4d 1710 acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result);
9a816850 1711 if (ACPI_FAILURE(status))
5ad77dcf 1712 pr_warn("Error calling BSTS\n");
85091b71 1713 else if (bsts_result)
2fcc23da 1714 pr_notice("BSTS called, 0x%02x returned\n",
9a816850 1715 (uint) bsts_result);
85091b71 1716
185e5af9 1717 /* This too ... */
e5593bf1
CC		 1718 if (write_acpi_int(asus->handle, "CWAP", wapf))
1719 pr_err("Error calling CWAP(%d)\n", wapf);
85091b71
CC		 1720 /*
1721 * Try to match the object returned by INIT to the specific model.
1722 * Handle every possible object (or the lack of thereof) the DSDT
1723 * writers might throw at us. When in trouble, we pass NULL to
1724 * asus_model_match() and try something completely different.
1725 */
1726 if (buffer.pointer) {
1727 model = buffer.pointer;
1728 switch (model->type) {
1729 case ACPI_TYPE_STRING:
1730 string = model->string.pointer;
1731 break;
1732 case ACPI_TYPE_BUFFER:
1733 string = model->buffer.pointer;
1734 break;
1735 default:
1736 string = "";
1737 break;
1738 }
1739 }
50a90c4d 1740 asus->name = kstrdup(string, GFP_KERNEL);
d8eca110
AL		 1741 if (!asus->name) {
1742 kfree(buffer.pointer);
85091b71 1743 return -ENOMEM;
d8eca110 1744 }
85091b71 1745
9f897484 1746 if (string)
2fcc23da 1747 pr_notice(" %s model detected\n", string);
85091b71 1748
d99b577c 1749 if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL))
aa9df930 1750 asus->have_rsts = true;
4564de17 1751
85091b71
CC		 1752 kfree(model);
1753
1754 return AE_OK;
1755}
1756
b859f159 1757static int asus_acpi_init(struct asus_laptop *asus)
85091b71 1758{
600ad520 1759 int result = 0;
85091b71 1760
50a90c4d 1761 result = acpi_bus_get_status(asus->device);
600ad520 1762 if (result)
85091b71 1763 return result;
50a90c4d 1764 if (!asus->device->status.present) {
600ad520 1765 pr_err("Hotkey device not present, aborting\n");
85091b71
CC		 1766 return -ENODEV;
1767 }
1768
7c247645 1769 result = asus_laptop_get_info(asus);
034ce90a 1770 if (result)
600ad520 1771 return result;
034ce90a 1772
774b0678
CC		 1773 if (!strcmp(bled_type, "led"))
1774 asus->bled_type = TYPE_LED;
1775 else if (!strcmp(bled_type, "rfkill"))
1776 asus->bled_type = TYPE_RFKILL;
1777
1778 if (!strcmp(wled_type, "led"))
1779 asus->wled_type = TYPE_LED;
1780 else if (!strcmp(wled_type, "rfkill"))
1781 asus->wled_type = TYPE_RFKILL;
1782
be4ee82d 1783 if (bluetooth_status >= 0)
e5593bf1
CC		 1784 asus_bluetooth_set(asus, !!bluetooth_status);
1785
d0930a2d
CC		 1786 if (wlan_status >= 0)
1787 asus_wlan_set(asus, !!wlan_status);
85091b71 1788
ba1ff5be
CC		 1789 if (wimax_status >= 0)
1790 asus_wimax_set(asus, !!wimax_status);
1791
1792 if (wwan_status >= 0)
1793 asus_wwan_set(asus, !!wwan_status);
1794
600ad520 1795 /* Keyboard Backlight is on by default */
d99b577c 1796 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL))
4d441513 1797 asus_kled_set(asus, 1);
600ad520
CC		 1798
1799 /* LED display is off by default */
50a90c4d 1800 asus->ledd_status = 0xFFF;
600ad520
CC		 1801
1802 /* Set initial values of light sensor and level */
abec04db 1803 asus->light_switch = !!als_status;
be4ee82d 1804 asus->light_level = 5; /* level 5 for sensor sensitivity */
600ad520 1805
33989ba6
AR		 1806 if (asus->is_pega_lucid) {
1807 asus_als_switch(asus, asus->light_switch);
1808 } else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) &&
1809 !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) {
4d441513 1810 asus_als_switch(asus, asus->light_switch);
4d441513 1811 asus_als_level(asus, asus->light_level);
d99b577c 1812 }
600ad520 1813
600ad520
CC		 1814 return result;
1815}
1816
b859f159 1817static void asus_dmi_check(void)
af96f877
CC		 1818{
1819 const char *model;
1820
1821 model = dmi_get_system_info(DMI_PRODUCT_NAME);
1822 if (!model)
1823 return;
1824
1825 /* On L1400B WLED control the sound card, don't mess with it ... */
1826 if (strncmp(model, "L1400B", 6) == 0) {
1827 wlan_status = -1;
1828 }
1829}
1830
71e687dc
CC		 1831static bool asus_device_present;
1832
b859f159 1833static int asus_acpi_add(struct acpi_device *device)
600ad520 1834{
9129d14d 1835 struct asus_laptop *asus;
600ad520
CC		 1836 int result;
1837
1838 pr_notice("Asus Laptop Support version %s\n",
1839 ASUS_LAPTOP_VERSION);
50a90c4d
CC		 1840 asus = kzalloc(sizeof(struct asus_laptop), GFP_KERNEL);
1841 if (!asus)
600ad520 1842 return -ENOMEM;
50a90c4d
CC		 1843 asus->handle = device->handle;
1844 strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME);
1845 strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS);
1846 device->driver_data = asus;
1847 asus->device = device;
600ad520 1848
af96f877
CC		 1849 asus_dmi_check();
1850
9129d14d 1851 result = asus_acpi_init(asus);
8def05fa 1852 if (result)
600ad520 1853 goto fail_platform;
85091b71 1854
600ad520 1855 /*
8819de7f
AR		 1856 * Need platform type detection first, then the platform
1857 * device. It is used as a parent for the sub-devices below.
600ad520 1858 */
8819de7f 1859 asus->is_pega_lucid = asus_check_pega_lucid(asus);
9129d14d 1860 result = asus_platform_init(asus);
116bf2e0 1861 if (result)
600ad520 1862 goto fail_platform;
116bf2e0
CC		 1863
1864 if (!acpi_video_backlight_support()) {
9129d14d 1865 result = asus_backlight_init(asus);
116bf2e0
CC		 1866 if (result)
1867 goto fail_backlight;
1868 } else
600ad520 1869 pr_info("Backlight controlled by ACPI video driver\n");
116bf2e0 1870
9129d14d 1871 result = asus_input_init(asus);
600ad520
CC		 1872 if (result)
1873 goto fail_input;
1874
9129d14d 1875 result = asus_led_init(asus);
600ad520
CC		 1876 if (result)
1877 goto fail_led;
1878
18e1311e 1879 result = asus_rfkill_init(asus);
3c8671ff 1880 if (result && result != -ENODEV)
18e1311e
CC		 1881 goto fail_rfkill;
1882
b23910c2
AR		 1883 result = pega_accel_init(asus);
1884 if (result && result != -ENODEV)
1885 goto fail_pega_accel;
1886
14908399
AA		 1887 result = pega_rfkill_init(asus);
1888 if (result && result != -ENODEV)
1889 goto fail_pega_rfkill;
1890
600ad520 1891 asus_device_present = true;
8def05fa 1892 return 0;
85091b71 1893
14908399
AA		 1894fail_pega_rfkill:
1895 pega_accel_exit(asus);
b23910c2
AR		 1896fail_pega_accel:
1897 asus_rfkill_exit(asus);
18e1311e
CC		 1898fail_rfkill:
1899 asus_led_exit(asus);
600ad520 1900fail_led:
9129d14d 1901 asus_input_exit(asus);
600ad520 1902fail_input:
9129d14d 1903 asus_backlight_exit(asus);
116bf2e0 1904fail_backlight:
9129d14d 1905 asus_platform_exit(asus);
600ad520 1906fail_platform:
50a90c4d
CC		 1907 kfree(asus->name);
1908 kfree(asus);
116bf2e0 1909
600ad520
CC		 1910 return result;
1911}
116bf2e0 1912
600ad520
CC		 1913static int asus_acpi_remove(struct acpi_device *device, int type)
1914{
9129d14d
CC		 1915 struct asus_laptop *asus = acpi_driver_data(device);
1916
1917 asus_backlight_exit(asus);
18e1311e 1918 asus_rfkill_exit(asus);
9129d14d
CC		 1919 asus_led_exit(asus);
1920 asus_input_exit(asus);
b23910c2 1921 pega_accel_exit(asus);
9129d14d 1922 asus_platform_exit(asus);
600ad520 1923
50a90c4d
CC		 1924 kfree(asus->name);
1925 kfree(asus);
600ad520
CC		 1926 return 0;
1927}
1928
1929static const struct acpi_device_id asus_device_ids[] = {
1930 {"ATK0100", 0},
1931 {"ATK0101", 0},
1932 {"", 0},
1933};
1934MODULE_DEVICE_TABLE(acpi, asus_device_ids);
85091b71 1935
600ad520 1936static struct acpi_driver asus_acpi_driver = {
50a90c4d
CC		 1937 .name = ASUS_LAPTOP_NAME,
1938 .class = ASUS_LAPTOP_CLASS,
600ad520
CC		 1939 .owner = THIS_MODULE,
1940 .ids = asus_device_ids,
1941 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1942 .ops = {
1943 .add = asus_acpi_add,
1944 .remove = asus_acpi_remove,
1945 .notify = asus_acpi_notify,
1946 },
1947};
85091b71 1948
600ad520
CC		 1949static int __init asus_laptop_init(void)
1950{
1951 int result;
85091b71 1952
600ad520
CC		 1953 result = platform_driver_register(&platform_driver);
1954 if (result < 0)
1955 return result;
034ce90a 1956
600ad520
CC		 1957 result = acpi_bus_register_driver(&asus_acpi_driver);
1958 if (result < 0)
1959 goto fail_acpi_driver;
1960 if (!asus_device_present) {
1961 result = -ENODEV;
1962 goto fail_no_device;
1963 }
1964 return 0;
85091b71 1965
600ad520
CC		 1966fail_no_device:
1967 acpi_bus_unregister_driver(&asus_acpi_driver);
1968fail_acpi_driver:
1969 platform_driver_unregister(&platform_driver);
85091b71
CC		 1970 return result;
1971}
1972
600ad520
CC		 1973static void __exit asus_laptop_exit(void)
1974{
1975 acpi_bus_unregister_driver(&asus_acpi_driver);
1976 platform_driver_unregister(&platform_driver);
1977}
1978
85091b71
CC		 1979module_init(asus_laptop_init);
1980module_exit(asus_laptop_exit);
kernel source for telekom puls (alcatel/mediatek)