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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 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 *
23 * The development page for this driver is located at
24 * http://sourceforge.net/projects/acpi4asus/
25 *
26 * Credits:
27 * Pontus Fuchs - Helper functions, cleanup
28 * Johann Wiesner - Small compile fixes
29 * John Belmonte - ACPI code for Toshiba laptop was a good starting point.
30 * Eric Burghard - LED display support for W1N
31 * Josh Green - Light Sens support
32 * Thomas Tuttle - His first patch for led support was very helpful
33 * Sam Lin - GPS support
34 */
35
36#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
37
38#include <linux/kernel.h>
39#include <linux/module.h>
40#include <linux/init.h>
41#include <linux/types.h>
42#include <linux/err.h>
43#include <linux/proc_fs.h>
44#include <linux/backlight.h>
45#include <linux/fb.h>
46#include <linux/leds.h>
47#include <linux/platform_device.h>
48#include <linux/uaccess.h>
49#include <linux/input.h>
50#include <linux/input/sparse-keymap.h>
51#include <linux/rfkill.h>
52#include <linux/slab.h>
53#include <linux/dmi.h>
54#include <acpi/acpi_drivers.h>
55#include <acpi/acpi_bus.h>
56
57#define ASUS_LAPTOP_VERSION "0.42"
58
59#define ASUS_LAPTOP_NAME "Asus Laptop Support"
60#define ASUS_LAPTOP_CLASS "hotkey"
61#define ASUS_LAPTOP_DEVICE_NAME "Hotkey"
62#define ASUS_LAPTOP_FILE KBUILD_MODNAME
63#define ASUS_LAPTOP_PREFIX "\\_SB.ATKD."
64
65MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary");
66MODULE_DESCRIPTION(ASUS_LAPTOP_NAME);
67MODULE_LICENSE("GPL");
68
69/*
70 * WAPF defines the behavior of the Fn+Fx wlan key
71 * The significance of values is yet to be found, but
72 * most of the time:
73 * Bit | Bluetooth | WLAN
74 * 0 | Hardware | Hardware
75 * 1 | Hardware | Software
76 * 4 | Software | Software
77 */
78static uint wapf = 1;
79module_param(wapf, uint, 0444);
80MODULE_PARM_DESC(wapf, "WAPF value");
81
82static int wlan_status = 1;
83static int bluetooth_status = 1;
84static int wimax_status = -1;
85static int wwan_status = -1;
86
87module_param(wlan_status, int, 0444);
88MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot "
89 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
90 "default is 1");
91
92module_param(bluetooth_status, int, 0444);
93MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot "
94 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
95 "default is 1");
96
97module_param(wimax_status, int, 0444);
98MODULE_PARM_DESC(wimax_status, "Set the wireless status on boot "
99 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
100 "default is 1");
101
102module_param(wwan_status, int, 0444);
103MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot "
104 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
105 "default is 1");
106
107/*
108 * Some events we use, same for all Asus
109 */
110#define ATKD_BR_UP 0x10 /* (event & ~ATKD_BR_UP) = brightness level */
111#define ATKD_BR_DOWN 0x20 /* (event & ~ATKD_BR_DOWN) = britghness level */
112#define ATKD_BR_MIN ATKD_BR_UP
113#define ATKD_BR_MAX (ATKD_BR_DOWN | 0xF) /* 0x2f */
114#define ATKD_LCD_ON 0x33
115#define ATKD_LCD_OFF 0x34
116
117/*
118 * Known bits returned by \_SB.ATKD.HWRS
119 */
120#define WL_HWRS 0x80
121#define BT_HWRS 0x100
122
123/*
124 * Flags for hotk status
125 * WL_ON and BT_ON are also used for wireless_status()
126 */
127#define WL_RSTS 0x01 /* internal Wifi */
128#define BT_RSTS 0x02 /* internal Bluetooth */
129#define WM_RSTS 0x08 /* internal wimax */
130#define WW_RSTS 0x20 /* internal wwan */
131
132/* LED */
133#define METHOD_MLED "MLED"
134#define METHOD_TLED "TLED"
135#define METHOD_RLED "RLED" /* W1JC */
136#define METHOD_PLED "PLED" /* A7J */
137#define METHOD_GLED "GLED" /* G1, G2 (probably) */
138
139/* LEDD */
140#define METHOD_LEDD "SLCM"
141
142/*
143 * Bluetooth and WLAN
144 * WLED and BLED are not handled like other XLED, because in some dsdt
145 * they also control the WLAN/Bluetooth device.
146 */
147#define METHOD_WLAN "WLED"
148#define METHOD_BLUETOOTH "BLED"
149
150/* WWAN and WIMAX */
151#define METHOD_WWAN "GSMC"
152#define METHOD_WIMAX "WMXC"
153
154#define METHOD_WL_STATUS "RSTS"
155
156/* Brightness */
157#define METHOD_BRIGHTNESS_SET "SPLV"
158#define METHOD_BRIGHTNESS_GET "GPLV"
159
160/* Display */
161#define METHOD_SWITCH_DISPLAY "SDSP"
162
163#define METHOD_ALS_CONTROL "ALSC" /* Z71A Z71V */
164#define METHOD_ALS_LEVEL "ALSL" /* Z71A Z71V */
165
166/* GPS */
167/* R2H use different handle for GPS on/off */
168#define METHOD_GPS_ON "SDON"
169#define METHOD_GPS_OFF "SDOF"
170#define METHOD_GPS_STATUS "GPST"
171
172/* Keyboard light */
173#define METHOD_KBD_LIGHT_SET "SLKB"
174#define METHOD_KBD_LIGHT_GET "GLKB"
175
176/*
177 * Define a specific led structure to keep the main structure clean
178 */
179struct asus_led {
180 int wk;
181 struct work_struct work;
182 struct led_classdev led;
183 struct asus_laptop *asus;
184 const char *method;
185};
186
187/*
188 * This is the main structure, we can use it to store anything interesting
189 * about the hotk device
190 */
191struct asus_laptop {
192 char *name; /* laptop name */
193
194 struct acpi_table_header *dsdt_info;
195 struct platform_device *platform_device;
196 struct acpi_device *device; /* the device we are in */
197 struct backlight_device *backlight_device;
198
199 struct input_dev *inputdev;
200 struct key_entry *keymap;
201
202 struct asus_led mled;
203 struct asus_led tled;
204 struct asus_led rled;
205 struct asus_led pled;
206 struct asus_led gled;
207 struct asus_led kled;
208 struct workqueue_struct *led_workqueue;
209
210 int wireless_status;
211 bool have_rsts;
212
213 struct rfkill *gps_rfkill;
214
215 acpi_handle handle; /* the handle of the hotk device */
216 u32 ledd_status; /* status of the LED display */
217 u8 light_level; /* light sensor level */
218 u8 light_switch; /* light sensor switch value */
219 u16 event_count[128]; /* count for each event TODO make this better */
220};
221
222static const struct key_entry asus_keymap[] = {
223 /* Lenovo SL Specific keycodes */
224 {KE_KEY, 0x02, { KEY_SCREENLOCK } },
225 {KE_KEY, 0x05, { KEY_WLAN } },
226 {KE_KEY, 0x08, { KEY_F13 } },
227 {KE_KEY, 0x17, { KEY_ZOOM } },
228 {KE_KEY, 0x1f, { KEY_BATTERY } },
229 /* End of Lenovo SL Specific keycodes */
230 {KE_KEY, 0x30, { KEY_VOLUMEUP } },
231 {KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
232 {KE_KEY, 0x32, { KEY_MUTE } },
233 {KE_KEY, 0x33, { KEY_SWITCHVIDEOMODE } },
234 {KE_KEY, 0x34, { KEY_SWITCHVIDEOMODE } },
235 {KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
236 {KE_KEY, 0x41, { KEY_NEXTSONG } },
237 {KE_KEY, 0x43, { KEY_STOPCD } },
238 {KE_KEY, 0x45, { KEY_PLAYPAUSE } },
239 {KE_KEY, 0x4c, { KEY_MEDIA } },
240 {KE_KEY, 0x50, { KEY_EMAIL } },
241 {KE_KEY, 0x51, { KEY_WWW } },
242 {KE_KEY, 0x55, { KEY_CALC } },
243 {KE_KEY, 0x5C, { KEY_SCREENLOCK } }, /* Screenlock */
244 {KE_KEY, 0x5D, { KEY_WLAN } },
245 {KE_KEY, 0x5E, { KEY_WLAN } },
246 {KE_KEY, 0x5F, { KEY_WLAN } },
247 {KE_KEY, 0x60, { KEY_SWITCHVIDEOMODE } },
248 {KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } },
249 {KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } },
250 {KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } },
251 {KE_KEY, 0x6B, { KEY_F13 } }, /* Lock Touchpad */
252 {KE_KEY, 0x7E, { KEY_BLUETOOTH } },
253 {KE_KEY, 0x7D, { KEY_BLUETOOTH } },
254 {KE_KEY, 0x82, { KEY_CAMERA } },
255 {KE_KEY, 0x88, { KEY_WLAN } },
256 {KE_KEY, 0x8A, { KEY_PROG1 } },
257 {KE_KEY, 0x95, { KEY_MEDIA } },
258 {KE_KEY, 0x99, { KEY_PHONE } },
259 {KE_KEY, 0xc4, { KEY_KBDILLUMUP } },
260 {KE_KEY, 0xc5, { KEY_KBDILLUMDOWN } },
261 {KE_KEY, 0xb5, { KEY_CALC } },
262 {KE_END, 0},
263};
264
265
266/*
267 * This function evaluates an ACPI method, given an int as parameter, the
268 * method is searched within the scope of the handle, can be NULL. The output
269 * of the method is written is output, which can also be NULL
270 *
271 * returns 0 if write is successful, -1 else.
272 */
273static int write_acpi_int_ret(acpi_handle handle, const char *method, int val,
274 struct acpi_buffer *output)
275{
276 struct acpi_object_list params; /* list of input parameters (an int) */
277 union acpi_object in_obj; /* the only param we use */
278 acpi_status status;
279
280 if (!handle)
281 return -1;
282
283 params.count = 1;
284 params.pointer = &in_obj;
285 in_obj.type = ACPI_TYPE_INTEGER;
286 in_obj.integer.value = val;
287
288 status = acpi_evaluate_object(handle, (char *)method, ¶ms, output);
289 if (status == AE_OK)
290 return 0;
291 else
292 return -1;
293}
294
295static int write_acpi_int(acpi_handle handle, const char *method, int val)
296{
297 return write_acpi_int_ret(handle, method, val, NULL);
298}
299
300static int acpi_check_handle(acpi_handle handle, const char *method,
301 acpi_handle *ret)
302{
303 acpi_status status;
304
305 if (method == NULL)
306 return -ENODEV;
307
308 if (ret)
309 status = acpi_get_handle(handle, (char *)method,
310 ret);
311 else {
312 acpi_handle dummy;
313
314 status = acpi_get_handle(handle, (char *)method,
315 &dummy);
316 }
317
318 if (status != AE_OK) {
319 if (ret)
320 pr_warn("Error finding %s\n", method);
321 return -ENODEV;
322 }
323 return 0;
324}
325
326/* Generic LED function */
327static int asus_led_set(struct asus_laptop *asus, const char *method,
328 int value)
329{
330 if (!strcmp(method, METHOD_MLED))
331 value = !value;
332 else if (!strcmp(method, METHOD_GLED))
333 value = !value + 1;
334 else
335 value = !!value;
336
337 return write_acpi_int(asus->handle, method, value);
338}
339
340/*
341 * LEDs
342 */
343/* /sys/class/led handlers */
344static void asus_led_cdev_set(struct led_classdev *led_cdev,
345 enum led_brightness value)
346{
347 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
348 struct asus_laptop *asus = led->asus;
349
350 led->wk = !!value;
351 queue_work(asus->led_workqueue, &led->work);
352}
353
354static void asus_led_cdev_update(struct work_struct *work)
355{
356 struct asus_led *led = container_of(work, struct asus_led, work);
357 struct asus_laptop *asus = led->asus;
358
359 asus_led_set(asus, led->method, led->wk);
360}
361
362static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev)
363{
364 return led_cdev->brightness;
365}
366
367/*
368 * Keyboard backlight (also a LED)
369 */
370static int asus_kled_lvl(struct asus_laptop *asus)
371{
372 unsigned long long kblv;
373 struct acpi_object_list params;
374 union acpi_object in_obj;
375 acpi_status rv;
376
377 params.count = 1;
378 params.pointer = &in_obj;
379 in_obj.type = ACPI_TYPE_INTEGER;
380 in_obj.integer.value = 2;
381
382 rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET,
383 ¶ms, &kblv);
384 if (ACPI_FAILURE(rv)) {
385 pr_warn("Error reading kled level\n");
386 return -ENODEV;
387 }
388 return kblv;
389}
390
391static int asus_kled_set(struct asus_laptop *asus, int kblv)
392{
393 if (kblv > 0)
394 kblv = (1 << 7) | (kblv & 0x7F);
395 else
396 kblv = 0;
397
398 if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) {
399 pr_warn("Keyboard LED display write failed\n");
400 return -EINVAL;
401 }
402 return 0;
403}
404
405static void asus_kled_cdev_set(struct led_classdev *led_cdev,
406 enum led_brightness value)
407{
408 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
409 struct asus_laptop *asus = led->asus;
410
411 led->wk = value;
412 queue_work(asus->led_workqueue, &led->work);
413}
414
415static void asus_kled_cdev_update(struct work_struct *work)
416{
417 struct asus_led *led = container_of(work, struct asus_led, work);
418 struct asus_laptop *asus = led->asus;
419
420 asus_kled_set(asus, led->wk);
421}
422
423static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev)
424{
425 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
426 struct asus_laptop *asus = led->asus;
427
428 return asus_kled_lvl(asus);
429}
430
431static void asus_led_exit(struct asus_laptop *asus)
432{
433 if (asus->mled.led.dev)
434 led_classdev_unregister(&asus->mled.led);
435 if (asus->tled.led.dev)
436 led_classdev_unregister(&asus->tled.led);
437 if (asus->pled.led.dev)
438 led_classdev_unregister(&asus->pled.led);
439 if (asus->rled.led.dev)
440 led_classdev_unregister(&asus->rled.led);
441 if (asus->gled.led.dev)
442 led_classdev_unregister(&asus->gled.led);
443 if (asus->kled.led.dev)
444 led_classdev_unregister(&asus->kled.led);
445 if (asus->led_workqueue) {
446 destroy_workqueue(asus->led_workqueue);
447 asus->led_workqueue = NULL;
448 }
449}
450
451/* Ugly macro, need to fix that later */
452static int asus_led_register(struct asus_laptop *asus,
453 struct asus_led *led,
454 const char *name, const char *method)
455{
456 struct led_classdev *led_cdev = &led->led;
457
458 if (!method || acpi_check_handle(asus->handle, method, NULL))
459 return 0; /* Led not present */
460
461 led->asus = asus;
462 led->method = method;
463
464 INIT_WORK(&led->work, asus_led_cdev_update);
465 led_cdev->name = name;
466 led_cdev->brightness_set = asus_led_cdev_set;
467 led_cdev->brightness_get = asus_led_cdev_get;
468 led_cdev->max_brightness = 1;
469 return led_classdev_register(&asus->platform_device->dev, led_cdev);
470}
471
472static int asus_led_init(struct asus_laptop *asus)
473{
474 int r;
475
476 /*
477 * Functions that actually update the LED's are called from a
478 * workqueue. By doing this as separate work rather than when the LED
479 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
480 * potentially bad time, such as a timer interrupt.
481 */
482 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
483 if (!asus->led_workqueue)
484 return -ENOMEM;
485
486 r = asus_led_register(asus, &asus->mled, "asus::mail", METHOD_MLED);
487 if (r)
488 goto error;
489 r = asus_led_register(asus, &asus->tled, "asus::touchpad", METHOD_TLED);
490 if (r)
491 goto error;
492 r = asus_led_register(asus, &asus->rled, "asus::record", METHOD_RLED);
493 if (r)
494 goto error;
495 r = asus_led_register(asus, &asus->pled, "asus::phone", METHOD_PLED);
496 if (r)
497 goto error;
498 r = asus_led_register(asus, &asus->gled, "asus::gaming", METHOD_GLED);
499 if (r)
500 goto error;
501 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL) &&
502 !acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL)) {
503 struct asus_led *led = &asus->kled;
504 struct led_classdev *cdev = &led->led;
505
506 led->asus = asus;
507
508 INIT_WORK(&led->work, asus_kled_cdev_update);
509 cdev->name = "asus::kbd_backlight";
510 cdev->brightness_set = asus_kled_cdev_set;
511 cdev->brightness_get = asus_kled_cdev_get;
512 cdev->max_brightness = 3;
513 r = led_classdev_register(&asus->platform_device->dev, cdev);
514 }
515error:
516 if (r)
517 asus_led_exit(asus);
518 return r;
519}
520
521/*
522 * Backlight device
523 */
524static int asus_read_brightness(struct backlight_device *bd)
525{
526 struct asus_laptop *asus = bl_get_data(bd);
527 unsigned long long value;
528 acpi_status rv = AE_OK;
529
530 rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET,
531 NULL, &value);
532 if (ACPI_FAILURE(rv))
533 pr_warn("Error reading brightness\n");
534
535 return value;
536}
537
538static int asus_set_brightness(struct backlight_device *bd, int value)
539{
540 struct asus_laptop *asus = bl_get_data(bd);
541
542 if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) {
543 pr_warn("Error changing brightness\n");
544 return -EIO;
545 }
546 return 0;
547}
548
549static int update_bl_status(struct backlight_device *bd)
550{
551 int value = bd->props.brightness;
552
553 return asus_set_brightness(bd, value);
554}
555
556static const struct backlight_ops asusbl_ops = {
557 .get_brightness = asus_read_brightness,
558 .update_status = update_bl_status,
559};
560
561static int asus_backlight_notify(struct asus_laptop *asus)
562{
563 struct backlight_device *bd = asus->backlight_device;
564 int old = bd->props.brightness;
565
566 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
567
568 return old;
569}
570
571static int asus_backlight_init(struct asus_laptop *asus)
572{
573 struct backlight_device *bd;
574 struct backlight_properties props;
575
576 if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) ||
577 acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL))
578 return 0;
579
580 memset(&props, 0, sizeof(struct backlight_properties));
581 props.max_brightness = 15;
582 props.type = BACKLIGHT_PLATFORM;
583
584 bd = backlight_device_register(ASUS_LAPTOP_FILE,
585 &asus->platform_device->dev, asus,
586 &asusbl_ops, &props);
587 if (IS_ERR(bd)) {
588 pr_err("Could not register asus backlight device\n");
589 asus->backlight_device = NULL;
590 return PTR_ERR(bd);
591 }
592
593 asus->backlight_device = bd;
594 bd->props.brightness = asus_read_brightness(bd);
595 bd->props.power = FB_BLANK_UNBLANK;
596 backlight_update_status(bd);
597 return 0;
598}
599
600static void asus_backlight_exit(struct asus_laptop *asus)
601{
602 if (asus->backlight_device)
603 backlight_device_unregister(asus->backlight_device);
604 asus->backlight_device = NULL;
605}
606
607/*
608 * Platform device handlers
609 */
610
611/*
612 * We write our info in page, we begin at offset off and cannot write more
613 * than count bytes. We set eof to 1 if we handle those 2 values. We return the
614 * number of bytes written in page
615 */
616static ssize_t show_infos(struct device *dev,
617 struct device_attribute *attr, char *page)
618{
619 struct asus_laptop *asus = dev_get_drvdata(dev);
620 int len = 0;
621 unsigned long long temp;
622 char buf[16]; /* enough for all info */
623 acpi_status rv = AE_OK;
624
625 /*
626 * We use the easy way, we don't care of off and count,
627 * so we don't set eof to 1
628 */
629
630 len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n");
631 len += sprintf(page + len, "Model reference : %s\n", asus->name);
632 /*
633 * The SFUN method probably allows the original driver to get the list
634 * of features supported by a given model. For now, 0x0100 or 0x0800
635 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
636 * The significance of others is yet to be found.
637 */
638 rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp);
639 if (!ACPI_FAILURE(rv))
640 len += sprintf(page + len, "SFUN value : %#x\n",
641 (uint) temp);
642 /*
643 * The HWRS method return informations about the hardware.
644 * 0x80 bit is for WLAN, 0x100 for Bluetooth.
645 * The significance of others is yet to be found.
646 * If we don't find the method, we assume the device are present.
647 */
648 rv = acpi_evaluate_integer(asus->handle, "HRWS", NULL, &temp);
649 if (!ACPI_FAILURE(rv))
650 len += sprintf(page + len, "HRWS value : %#x\n",
651 (uint) temp);
652 /*
653 * Another value for userspace: the ASYM method returns 0x02 for
654 * battery low and 0x04 for battery critical, its readings tend to be
655 * more accurate than those provided by _BST.
656 * Note: since not all the laptops provide this method, errors are
657 * silently ignored.
658 */
659 rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp);
660 if (!ACPI_FAILURE(rv))
661 len += sprintf(page + len, "ASYM value : %#x\n",
662 (uint) temp);
663 if (asus->dsdt_info) {
664 snprintf(buf, 16, "%d", asus->dsdt_info->length);
665 len += sprintf(page + len, "DSDT length : %s\n", buf);
666 snprintf(buf, 16, "%d", asus->dsdt_info->checksum);
667 len += sprintf(page + len, "DSDT checksum : %s\n", buf);
668 snprintf(buf, 16, "%d", asus->dsdt_info->revision);
669 len += sprintf(page + len, "DSDT revision : %s\n", buf);
670 snprintf(buf, 7, "%s", asus->dsdt_info->oem_id);
671 len += sprintf(page + len, "OEM id : %s\n", buf);
672 snprintf(buf, 9, "%s", asus->dsdt_info->oem_table_id);
673 len += sprintf(page + len, "OEM table id : %s\n", buf);
674 snprintf(buf, 16, "%x", asus->dsdt_info->oem_revision);
675 len += sprintf(page + len, "OEM revision : 0x%s\n", buf);
676 snprintf(buf, 5, "%s", asus->dsdt_info->asl_compiler_id);
677 len += sprintf(page + len, "ASL comp vendor id : %s\n", buf);
678 snprintf(buf, 16, "%x", asus->dsdt_info->asl_compiler_revision);
679 len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf);
680 }
681
682 return len;
683}
684
685static int parse_arg(const char *buf, unsigned long count, int *val)
686{
687 if (!count)
688 return 0;
689 if (count > 31)
690 return -EINVAL;
691 if (sscanf(buf, "%i", val) != 1)
692 return -EINVAL;
693 return count;
694}
695
696static ssize_t sysfs_acpi_set(struct asus_laptop *asus,
697 const char *buf, size_t count,
698 const char *method)
699{
700 int rv, value;
701 int out = 0;
702
703 rv = parse_arg(buf, count, &value);
704 if (rv > 0)
705 out = value ? 1 : 0;
706
707 if (write_acpi_int(asus->handle, method, value))
708 return -ENODEV;
709 return rv;
710}
711
712/*
713 * LEDD display
714 */
715static ssize_t show_ledd(struct device *dev,
716 struct device_attribute *attr, char *buf)
717{
718 struct asus_laptop *asus = dev_get_drvdata(dev);
719
720 return sprintf(buf, "0x%08x\n", asus->ledd_status);
721}
722
723static ssize_t store_ledd(struct device *dev, struct device_attribute *attr,
724 const char *buf, size_t count)
725{
726 struct asus_laptop *asus = dev_get_drvdata(dev);
727 int rv, value;
728
729 rv = parse_arg(buf, count, &value);
730 if (rv > 0) {
731 if (write_acpi_int(asus->handle, METHOD_LEDD, value)) {
732 pr_warn("LED display write failed\n");
733 return -ENODEV;
734 }
735 asus->ledd_status = (u32) value;
736 }
737 return rv;
738}
739
740/*
741 * Wireless
742 */
743static int asus_wireless_status(struct asus_laptop *asus, int mask)
744{
745 unsigned long long status;
746 acpi_status rv = AE_OK;
747
748 if (!asus->have_rsts)
749 return (asus->wireless_status & mask) ? 1 : 0;
750
751 rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS,
752 NULL, &status);
753 if (ACPI_FAILURE(rv)) {
754 pr_warn("Error reading Wireless status\n");
755 return -EINVAL;
756 }
757 return !!(status & mask);
758}
759
760/*
761 * WLAN
762 */
763static int asus_wlan_set(struct asus_laptop *asus, int status)
764{
765 if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) {
766 pr_warn("Error setting wlan status to %d\n", status);
767 return -EIO;
768 }
769 return 0;
770}
771
772static ssize_t show_wlan(struct device *dev,
773 struct device_attribute *attr, char *buf)
774{
775 struct asus_laptop *asus = dev_get_drvdata(dev);
776
777 return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS));
778}
779
780static ssize_t store_wlan(struct device *dev, struct device_attribute *attr,
781 const char *buf, size_t count)
782{
783 struct asus_laptop *asus = dev_get_drvdata(dev);
784
785 return sysfs_acpi_set(asus, buf, count, METHOD_WLAN);
786}
787
788/*
789 * Bluetooth
790 */
791static int asus_bluetooth_set(struct asus_laptop *asus, int status)
792{
793 if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) {
794 pr_warn("Error setting bluetooth status to %d\n", status);
795 return -EIO;
796 }
797 return 0;
798}
799
800static ssize_t show_bluetooth(struct device *dev,
801 struct device_attribute *attr, char *buf)
802{
803 struct asus_laptop *asus = dev_get_drvdata(dev);
804
805 return sprintf(buf, "%d\n", asus_wireless_status(asus, BT_RSTS));
806}
807
808static ssize_t store_bluetooth(struct device *dev,
809 struct device_attribute *attr, const char *buf,
810 size_t count)
811{
812 struct asus_laptop *asus = dev_get_drvdata(dev);
813
814 return sysfs_acpi_set(asus, buf, count, METHOD_BLUETOOTH);
815}
816
817/*
818 * Wimax
819 */
820static int asus_wimax_set(struct asus_laptop *asus, int status)
821{
822 if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) {
823 pr_warn("Error setting wimax status to %d\n", status);
824 return -EIO;
825 }
826 return 0;
827}
828
829static ssize_t show_wimax(struct device *dev,
830 struct device_attribute *attr, char *buf)
831{
832 struct asus_laptop *asus = dev_get_drvdata(dev);
833
834 return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS));
835}
836
837static ssize_t store_wimax(struct device *dev,
838 struct device_attribute *attr, const char *buf,
839 size_t count)
840{
841 struct asus_laptop *asus = dev_get_drvdata(dev);
842
843 return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX);
844}
845
846/*
847 * Wwan
848 */
849static int asus_wwan_set(struct asus_laptop *asus, int status)
850{
851 if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) {
852 pr_warn("Error setting wwan status to %d\n", status);
853 return -EIO;
854 }
855 return 0;
856}
857
858static ssize_t show_wwan(struct device *dev,
859 struct device_attribute *attr, char *buf)
860{
861 struct asus_laptop *asus = dev_get_drvdata(dev);
862
863 return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS));
864}
865
866static ssize_t store_wwan(struct device *dev,
867 struct device_attribute *attr, const char *buf,
868 size_t count)
869{
870 struct asus_laptop *asus = dev_get_drvdata(dev);
871
872 return sysfs_acpi_set(asus, buf, count, METHOD_WWAN);
873}
874
875/*
876 * Display
877 */
878static void asus_set_display(struct asus_laptop *asus, int value)
879{
880 /* no sanity check needed for now */
881 if (write_acpi_int(asus->handle, METHOD_SWITCH_DISPLAY, value))
882 pr_warn("Error setting display\n");
883 return;
884}
885
886/*
887 * Experimental support for display switching. As of now: 1 should activate
888 * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI.
889 * Any combination (bitwise) of these will suffice. I never actually tested 4
890 * displays hooked up simultaneously, so be warned. See the acpi4asus README
891 * for more info.
892 */
893static ssize_t store_disp(struct device *dev, struct device_attribute *attr,
894 const char *buf, size_t count)
895{
896 struct asus_laptop *asus = dev_get_drvdata(dev);
897 int rv, value;
898
899 rv = parse_arg(buf, count, &value);
900 if (rv > 0)
901 asus_set_display(asus, value);
902 return rv;
903}
904
905/*
906 * Light Sens
907 */
908static void asus_als_switch(struct asus_laptop *asus, int value)
909{
910 if (write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value))
911 pr_warn("Error setting light sensor switch\n");
912 asus->light_switch = value;
913}
914
915static ssize_t show_lssw(struct device *dev,
916 struct device_attribute *attr, char *buf)
917{
918 struct asus_laptop *asus = dev_get_drvdata(dev);
919
920 return sprintf(buf, "%d\n", asus->light_switch);
921}
922
923static ssize_t store_lssw(struct device *dev, struct device_attribute *attr,
924 const char *buf, size_t count)
925{
926 struct asus_laptop *asus = dev_get_drvdata(dev);
927 int rv, value;
928
929 rv = parse_arg(buf, count, &value);
930 if (rv > 0)
931 asus_als_switch(asus, value ? 1 : 0);
932
933 return rv;
934}
935
936static void asus_als_level(struct asus_laptop *asus, int value)
937{
938 if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value))
939 pr_warn("Error setting light sensor level\n");
940 asus->light_level = value;
941}
942
943static ssize_t show_lslvl(struct device *dev,
944 struct device_attribute *attr, char *buf)
945{
946 struct asus_laptop *asus = dev_get_drvdata(dev);
947
948 return sprintf(buf, "%d\n", asus->light_level);
949}
950
951static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr,
952 const char *buf, size_t count)
953{
954 struct asus_laptop *asus = dev_get_drvdata(dev);
955 int rv, value;
956
957 rv = parse_arg(buf, count, &value);
958 if (rv > 0) {
959 value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
960 /* 0 <= value <= 15 */
961 asus_als_level(asus, value);
962 }
963
964 return rv;
965}
966
967/*
968 * GPS
969 */
970static int asus_gps_status(struct asus_laptop *asus)
971{
972 unsigned long long status;
973 acpi_status rv = AE_OK;
974
975 rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS,
976 NULL, &status);
977 if (ACPI_FAILURE(rv)) {
978 pr_warn("Error reading GPS status\n");
979 return -ENODEV;
980 }
981 return !!status;
982}
983
984static int asus_gps_switch(struct asus_laptop *asus, int status)
985{
986 const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF;
987
988 if (write_acpi_int(asus->handle, meth, 0x02))
989 return -ENODEV;
990 return 0;
991}
992
993static ssize_t show_gps(struct device *dev,
994 struct device_attribute *attr, char *buf)
995{
996 struct asus_laptop *asus = dev_get_drvdata(dev);
997
998 return sprintf(buf, "%d\n", asus_gps_status(asus));
999}
1000
1001static ssize_t store_gps(struct device *dev, struct device_attribute *attr,
1002 const char *buf, size_t count)
1003{
1004 struct asus_laptop *asus = dev_get_drvdata(dev);
1005 int rv, value;
1006 int ret;
1007
1008 rv = parse_arg(buf, count, &value);
1009 if (rv <= 0)
1010 return -EINVAL;
1011 ret = asus_gps_switch(asus, !!value);
1012 if (ret)
1013 return ret;
1014 rfkill_set_sw_state(asus->gps_rfkill, !value);
1015 return rv;
1016}
1017
1018/*
1019 * rfkill
1020 */
1021static int asus_gps_rfkill_set(void *data, bool blocked)
1022{
1023 struct asus_laptop *asus = data;
1024
1025 return asus_gps_switch(asus, !blocked);
1026}
1027
1028static const struct rfkill_ops asus_gps_rfkill_ops = {
1029 .set_block = asus_gps_rfkill_set,
1030};
1031
1032static void asus_rfkill_exit(struct asus_laptop *asus)
1033{
1034 if (asus->gps_rfkill) {
1035 rfkill_unregister(asus->gps_rfkill);
1036 rfkill_destroy(asus->gps_rfkill);
1037 asus->gps_rfkill = NULL;
1038 }
1039}
1040
1041static int asus_rfkill_init(struct asus_laptop *asus)
1042{
1043 int result;
1044
1045 if (acpi_check_handle(asus->handle, METHOD_GPS_ON, NULL) ||
1046 acpi_check_handle(asus->handle, METHOD_GPS_OFF, NULL) ||
1047 acpi_check_handle(asus->handle, METHOD_GPS_STATUS, NULL))
1048 return 0;
1049
1050 asus->gps_rfkill = rfkill_alloc("asus-gps", &asus->platform_device->dev,
1051 RFKILL_TYPE_GPS,
1052 &asus_gps_rfkill_ops, asus);
1053 if (!asus->gps_rfkill)
1054 return -EINVAL;
1055
1056 result = rfkill_register(asus->gps_rfkill);
1057 if (result) {
1058 rfkill_destroy(asus->gps_rfkill);
1059 asus->gps_rfkill = NULL;
1060 }
1061
1062 return result;
1063}
1064
1065/*
1066 * Input device (i.e. hotkeys)
1067 */
1068static void asus_input_notify(struct asus_laptop *asus, int event)
1069{
1070 if (asus->inputdev)
1071 sparse_keymap_report_event(asus->inputdev, event, 1, true);
1072}
1073
1074static int asus_input_init(struct asus_laptop *asus)
1075{
1076 struct input_dev *input;
1077 int error;
1078
1079 input = input_allocate_device();
1080 if (!input) {
1081 pr_info("Unable to allocate input device\n");
1082 return -ENOMEM;
1083 }
1084 input->name = "Asus Laptop extra buttons";
1085 input->phys = ASUS_LAPTOP_FILE "/input0";
1086 input->id.bustype = BUS_HOST;
1087 input->dev.parent = &asus->platform_device->dev;
1088
1089 error = sparse_keymap_setup(input, asus_keymap, NULL);
1090 if (error) {
1091 pr_err("Unable to setup input device keymap\n");
1092 goto err_free_dev;
1093 }
1094 error = input_register_device(input);
1095 if (error) {
1096 pr_info("Unable to register input device\n");
1097 goto err_free_keymap;
1098 }
1099
1100 asus->inputdev = input;
1101 return 0;
1102
1103err_free_keymap:
1104 sparse_keymap_free(input);
1105err_free_dev:
1106 input_free_device(input);
1107 return error;
1108}
1109
1110static void asus_input_exit(struct asus_laptop *asus)
1111{
1112 if (asus->inputdev) {
1113 sparse_keymap_free(asus->inputdev);
1114 input_unregister_device(asus->inputdev);
1115 }
1116 asus->inputdev = NULL;
1117}
1118
1119/*
1120 * ACPI driver
1121 */
1122static void asus_acpi_notify(struct acpi_device *device, u32 event)
1123{
1124 struct asus_laptop *asus = acpi_driver_data(device);
1125 u16 count;
1126
1127 /* TODO Find a better way to handle events count. */
1128 count = asus->event_count[event % 128]++;
1129 acpi_bus_generate_proc_event(asus->device, event, count);
1130 acpi_bus_generate_netlink_event(asus->device->pnp.device_class,
1131 dev_name(&asus->device->dev), event,
1132 count);
1133
1134 /* Brightness events are special */
1135 if (event >= ATKD_BR_MIN && event <= ATKD_BR_MAX) {
1136
1137 /* Ignore them completely if the acpi video driver is used */
1138 if (asus->backlight_device != NULL) {
1139 /* Update the backlight device. */
1140 asus_backlight_notify(asus);
1141 }
1142 return ;
1143 }
1144 asus_input_notify(asus, event);
1145}
1146
1147static DEVICE_ATTR(infos, S_IRUGO, show_infos, NULL);
1148static DEVICE_ATTR(wlan, S_IRUGO | S_IWUSR, show_wlan, store_wlan);
1149static DEVICE_ATTR(bluetooth, S_IRUGO | S_IWUSR,
1150 show_bluetooth, store_bluetooth);
1151static DEVICE_ATTR(wimax, S_IRUGO | S_IWUSR, show_wimax, store_wimax);
1152static DEVICE_ATTR(wwan, S_IRUGO | S_IWUSR, show_wwan, store_wwan);
1153static DEVICE_ATTR(display, S_IWUSR, NULL, store_disp);
1154static DEVICE_ATTR(ledd, S_IRUGO | S_IWUSR, show_ledd, store_ledd);
1155static DEVICE_ATTR(ls_level, S_IRUGO | S_IWUSR, show_lslvl, store_lslvl);
1156static DEVICE_ATTR(ls_switch, S_IRUGO | S_IWUSR, show_lssw, store_lssw);
1157static DEVICE_ATTR(gps, S_IRUGO | S_IWUSR, show_gps, store_gps);
1158
1159static struct attribute *asus_attributes[] = {
1160 &dev_attr_infos.attr,
1161 &dev_attr_wlan.attr,
1162 &dev_attr_bluetooth.attr,
1163 &dev_attr_wimax.attr,
1164 &dev_attr_wwan.attr,
1165 &dev_attr_display.attr,
1166 &dev_attr_ledd.attr,
1167 &dev_attr_ls_level.attr,
1168 &dev_attr_ls_switch.attr,
1169 &dev_attr_gps.attr,
1170 NULL
1171};
1172
1173static mode_t asus_sysfs_is_visible(struct kobject *kobj,
1174 struct attribute *attr,
1175 int idx)
1176{
1177 struct device *dev = container_of(kobj, struct device, kobj);
1178 struct platform_device *pdev = to_platform_device(dev);
1179 struct asus_laptop *asus = platform_get_drvdata(pdev);
1180 acpi_handle handle = asus->handle;
1181 bool supported;
1182
1183 if (attr == &dev_attr_wlan.attr) {
1184 supported = !acpi_check_handle(handle, METHOD_WLAN, NULL);
1185
1186 } else if (attr == &dev_attr_bluetooth.attr) {
1187 supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL);
1188
1189 } else if (attr == &dev_attr_display.attr) {
1190 supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL);
1191
1192 } else if (attr == &dev_attr_wimax.attr) {
1193 supported =
1194 !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL);
1195
1196 } else if (attr == &dev_attr_wwan.attr) {
1197 supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL);
1198
1199 } else if (attr == &dev_attr_ledd.attr) {
1200 supported = !acpi_check_handle(handle, METHOD_LEDD, NULL);
1201
1202 } else if (attr == &dev_attr_ls_switch.attr ||
1203 attr == &dev_attr_ls_level.attr) {
1204 supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) &&
1205 !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL);
1206
1207 } else if (attr == &dev_attr_gps.attr) {
1208 supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) &&
1209 !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) &&
1210 !acpi_check_handle(handle, METHOD_GPS_STATUS, NULL);
1211 } else {
1212 supported = true;
1213 }
1214
1215 return supported ? attr->mode : 0;
1216}
1217
1218
1219static const struct attribute_group asus_attr_group = {
1220 .is_visible = asus_sysfs_is_visible,
1221 .attrs = asus_attributes,
1222};
1223
1224static int asus_platform_init(struct asus_laptop *asus)
1225{
1226 int result;
1227
1228 asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, -1);
1229 if (!asus->platform_device)
1230 return -ENOMEM;
1231 platform_set_drvdata(asus->platform_device, asus);
1232
1233 result = platform_device_add(asus->platform_device);
1234 if (result)
1235 goto fail_platform_device;
1236
1237 result = sysfs_create_group(&asus->platform_device->dev.kobj,
1238 &asus_attr_group);
1239 if (result)
1240 goto fail_sysfs;
1241
1242 return 0;
1243
1244fail_sysfs:
1245 platform_device_del(asus->platform_device);
1246fail_platform_device:
1247 platform_device_put(asus->platform_device);
1248 return result;
1249}
1250
1251static void asus_platform_exit(struct asus_laptop *asus)
1252{
1253 sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group);
1254 platform_device_unregister(asus->platform_device);
1255}
1256
1257static struct platform_driver platform_driver = {
1258 .driver = {
1259 .name = ASUS_LAPTOP_FILE,
1260 .owner = THIS_MODULE,
1261 }
1262};
1263
1264/*
1265 * This function is used to initialize the context with right values. In this
1266 * method, we can make all the detection we want, and modify the asus_laptop
1267 * struct
1268 */
1269static int asus_laptop_get_info(struct asus_laptop *asus)
1270{
1271 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1272 union acpi_object *model = NULL;
1273 unsigned long long bsts_result, hwrs_result;
1274 char *string = NULL;
1275 acpi_status status;
1276
1277 /*
1278 * Get DSDT headers early enough to allow for differentiating between
1279 * models, but late enough to allow acpi_bus_register_driver() to fail
1280 * before doing anything ACPI-specific. Should we encounter a machine,
1281 * which needs special handling (i.e. its hotkey device has a different
1282 * HID), this bit will be moved.
1283 */
1284 status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info);
1285 if (ACPI_FAILURE(status))
1286 pr_warn("Couldn't get the DSDT table header\n");
1287
1288 /* We have to write 0 on init this far for all ASUS models */
1289 if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) {
1290 pr_err("Hotkey initialization failed\n");
1291 return -ENODEV;
1292 }
1293
1294 /* This needs to be called for some laptops to init properly */
1295 status =
1296 acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result);
1297 if (ACPI_FAILURE(status))
1298 pr_warn("Error calling BSTS\n");
1299 else if (bsts_result)
1300 pr_notice("BSTS called, 0x%02x returned\n",
1301 (uint) bsts_result);
1302
1303 /* This too ... */
1304 if (write_acpi_int(asus->handle, "CWAP", wapf))
1305 pr_err("Error calling CWAP(%d)\n", wapf);
1306 /*
1307 * Try to match the object returned by INIT to the specific model.
1308 * Handle every possible object (or the lack of thereof) the DSDT
1309 * writers might throw at us. When in trouble, we pass NULL to
1310 * asus_model_match() and try something completely different.
1311 */
1312 if (buffer.pointer) {
1313 model = buffer.pointer;
1314 switch (model->type) {
1315 case ACPI_TYPE_STRING:
1316 string = model->string.pointer;
1317 break;
1318 case ACPI_TYPE_BUFFER:
1319 string = model->buffer.pointer;
1320 break;
1321 default:
1322 string = "";
1323 break;
1324 }
1325 }
1326 asus->name = kstrdup(string, GFP_KERNEL);
1327 if (!asus->name) {
1328 kfree(buffer.pointer);
1329 return -ENOMEM;
1330 }
1331
1332 if (*string)
1333 pr_notice(" %s model detected\n", string);
1334
1335 /*
1336 * The HWRS method return informations about the hardware.
1337 * 0x80 bit is for WLAN, 0x100 for Bluetooth,
1338 * 0x40 for WWAN, 0x10 for WIMAX.
1339 * The significance of others is yet to be found.
1340 */
1341 status =
1342 acpi_evaluate_integer(asus->handle, "HRWS", NULL, &hwrs_result);
1343 if (!ACPI_FAILURE(status))
1344 pr_notice(" HRWS returned %x", (int)hwrs_result);
1345
1346 if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL))
1347 asus->have_rsts = true;
1348
1349 kfree(model);
1350
1351 return AE_OK;
1352}
1353
1354static int __devinit asus_acpi_init(struct asus_laptop *asus)
1355{
1356 int result = 0;
1357
1358 result = acpi_bus_get_status(asus->device);
1359 if (result)
1360 return result;
1361 if (!asus->device->status.present) {
1362 pr_err("Hotkey device not present, aborting\n");
1363 return -ENODEV;
1364 }
1365
1366 result = asus_laptop_get_info(asus);
1367 if (result)
1368 return result;
1369
1370 /* WLED and BLED are on by default */
1371 if (bluetooth_status >= 0)
1372 asus_bluetooth_set(asus, !!bluetooth_status);
1373
1374 if (wlan_status >= 0)
1375 asus_wlan_set(asus, !!wlan_status);
1376
1377 if (wimax_status >= 0)
1378 asus_wimax_set(asus, !!wimax_status);
1379
1380 if (wwan_status >= 0)
1381 asus_wwan_set(asus, !!wwan_status);
1382
1383 /* Keyboard Backlight is on by default */
1384 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL))
1385 asus_kled_set(asus, 1);
1386
1387 /* LED display is off by default */
1388 asus->ledd_status = 0xFFF;
1389
1390 /* Set initial values of light sensor and level */
1391 asus->light_switch = 0; /* Default to light sensor disabled */
1392 asus->light_level = 5; /* level 5 for sensor sensitivity */
1393
1394 if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) &&
1395 !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) {
1396 asus_als_switch(asus, asus->light_switch);
1397 asus_als_level(asus, asus->light_level);
1398 }
1399
1400 return result;
1401}
1402
1403static void __devinit asus_dmi_check(void)
1404{
1405 const char *model;
1406
1407 model = dmi_get_system_info(DMI_PRODUCT_NAME);
1408 if (!model)
1409 return;
1410
1411 /* On L1400B WLED control the sound card, don't mess with it ... */
1412 if (strncmp(model, "L1400B", 6) == 0) {
1413 wlan_status = -1;
1414 }
1415}
1416
1417static bool asus_device_present;
1418
1419static int __devinit asus_acpi_add(struct acpi_device *device)
1420{
1421 struct asus_laptop *asus;
1422 int result;
1423
1424 pr_notice("Asus Laptop Support version %s\n",
1425 ASUS_LAPTOP_VERSION);
1426 asus = kzalloc(sizeof(struct asus_laptop), GFP_KERNEL);
1427 if (!asus)
1428 return -ENOMEM;
1429 asus->handle = device->handle;
1430 strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME);
1431 strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS);
1432 device->driver_data = asus;
1433 asus->device = device;
1434
1435 asus_dmi_check();
1436
1437 result = asus_acpi_init(asus);
1438 if (result)
1439 goto fail_platform;
1440
1441 /*
1442 * Register the platform device first. It is used as a parent for the
1443 * sub-devices below.
1444 */
1445 result = asus_platform_init(asus);
1446 if (result)
1447 goto fail_platform;
1448
1449 if (!acpi_video_backlight_support()) {
1450 result = asus_backlight_init(asus);
1451 if (result)
1452 goto fail_backlight;
1453 } else
1454 pr_info("Backlight controlled by ACPI video driver\n");
1455
1456 result = asus_input_init(asus);
1457 if (result)
1458 goto fail_input;
1459
1460 result = asus_led_init(asus);
1461 if (result)
1462 goto fail_led;
1463
1464 result = asus_rfkill_init(asus);
1465 if (result)
1466 goto fail_rfkill;
1467
1468 asus_device_present = true;
1469 return 0;
1470
1471fail_rfkill:
1472 asus_led_exit(asus);
1473fail_led:
1474 asus_input_exit(asus);
1475fail_input:
1476 asus_backlight_exit(asus);
1477fail_backlight:
1478 asus_platform_exit(asus);
1479fail_platform:
1480 kfree(asus->name);
1481 kfree(asus);
1482
1483 return result;
1484}
1485
1486static int asus_acpi_remove(struct acpi_device *device, int type)
1487{
1488 struct asus_laptop *asus = acpi_driver_data(device);
1489
1490 asus_backlight_exit(asus);
1491 asus_rfkill_exit(asus);
1492 asus_led_exit(asus);
1493 asus_input_exit(asus);
1494 asus_platform_exit(asus);
1495
1496 kfree(asus->name);
1497 kfree(asus);
1498 return 0;
1499}
1500
1501static const struct acpi_device_id asus_device_ids[] = {
1502 {"ATK0100", 0},
1503 {"ATK0101", 0},
1504 {"", 0},
1505};
1506MODULE_DEVICE_TABLE(acpi, asus_device_ids);
1507
1508static struct acpi_driver asus_acpi_driver = {
1509 .name = ASUS_LAPTOP_NAME,
1510 .class = ASUS_LAPTOP_CLASS,
1511 .owner = THIS_MODULE,
1512 .ids = asus_device_ids,
1513 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1514 .ops = {
1515 .add = asus_acpi_add,
1516 .remove = asus_acpi_remove,
1517 .notify = asus_acpi_notify,
1518 },
1519};
1520
1521static int __init asus_laptop_init(void)
1522{
1523 int result;
1524
1525 result = platform_driver_register(&platform_driver);
1526 if (result < 0)
1527 return result;
1528
1529 result = acpi_bus_register_driver(&asus_acpi_driver);
1530 if (result < 0)
1531 goto fail_acpi_driver;
1532 if (!asus_device_present) {
1533 result = -ENODEV;
1534 goto fail_no_device;
1535 }
1536 return 0;
1537
1538fail_no_device:
1539 acpi_bus_unregister_driver(&asus_acpi_driver);
1540fail_acpi_driver:
1541 platform_driver_unregister(&platform_driver);
1542 return result;
1543}
1544
1545static void __exit asus_laptop_exit(void)
1546{
1547 acpi_bus_unregister_driver(&asus_acpi_driver);
1548 platform_driver_unregister(&platform_driver);
1549}
1550
1551module_init(asus_laptop_init);
1552module_exit(asus_laptop_exit);
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
67MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary");
68MODULE_DESCRIPTION(ASUS_LAPTOP_NAME);
69MODULE_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 */
80static uint wapf = 1;
81module_param(wapf, uint, 0444);
82MODULE_PARM_DESC(wapf, "WAPF value");
83
84static char *wled_type = "unknown";
85static char *bled_type = "unknown";
86
87module_param(wled_type, charp, 0444);
88MODULE_PARM_DESC(wled_type, "Set the wled type on boot "
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
97static int wlan_status = 1;
98static int bluetooth_status = 1;
99static int wimax_status = -1;
100static int wwan_status = -1;
101static int als_status;
102
103module_param(wlan_status, int, 0444);
104MODULE_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
108module_param(bluetooth_status, int, 0444);
109MODULE_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
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). "
116 "default is -1");
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). "
121 "default is -1");
122
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
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 */
230struct 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 */
241struct 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 */
252struct 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
297static 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 */
377static 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, ¶ms, output);
393 if (status == AE_OK)
394 return 0;
395 else
396 return -1;
397}
398
399static 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
404static 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
430static 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
438static 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
444static 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
464static 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
495static 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
504static 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
546exit:
547 input_free_polled_device(ipd);
548 return err;
549}
550
551/* Generic LED function */
552static 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 */
569static 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
579static 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
587static 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 */
595static 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 ¶ms, &kblv);
609 if (ACPI_FAILURE(rv)) {
610 pr_warn("Error reading kled level\n");
611 return -ENODEV;
612 }
613 return kblv;
614}
615
616static 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
630static 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
640static 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
648static 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
656static 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 */
681static 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
701static 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 }
761error:
762 if (r)
763 asus_led_exit(asus);
764 return r;
765}
766
767/*
768 * Backlight device
769 */
770static 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;
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 return 0;
781 }
782
783 return value;
784}
785
786static int asus_set_brightness(struct backlight_device *bd, int value)
787{
788 struct asus_laptop *asus = bl_get_data(bd);
789
790 if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) {
791 pr_warn("Error changing brightness\n");
792 return -EIO;
793 }
794 return 0;
795}
796
797static int update_bl_status(struct backlight_device *bd)
798{
799 int value = bd->props.brightness;
800
801 return asus_set_brightness(bd, value);
802}
803
804static const struct backlight_ops asusbl_ops = {
805 .get_brightness = asus_read_brightness,
806 .update_status = update_bl_status,
807};
808
809static int asus_backlight_notify(struct asus_laptop *asus)
810{
811 struct backlight_device *bd = asus->backlight_device;
812 int old = bd->props.brightness;
813
814 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
815
816 return old;
817}
818
819static int asus_backlight_init(struct asus_laptop *asus)
820{
821 struct backlight_device *bd;
822 struct backlight_properties props;
823
824 if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) ||
825 acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL))
826 return 0;
827
828 memset(&props, 0, sizeof(struct backlight_properties));
829 props.max_brightness = 15;
830 props.type = BACKLIGHT_PLATFORM;
831
832 bd = backlight_device_register(ASUS_LAPTOP_FILE,
833 &asus->platform_device->dev, asus,
834 &asusbl_ops, &props);
835 if (IS_ERR(bd)) {
836 pr_err("Could not register asus backlight device\n");
837 asus->backlight_device = NULL;
838 return PTR_ERR(bd);
839 }
840
841 asus->backlight_device = bd;
842 bd->props.brightness = asus_read_brightness(bd);
843 bd->props.power = FB_BLANK_UNBLANK;
844 backlight_update_status(bd);
845 return 0;
846}
847
848static void asus_backlight_exit(struct asus_laptop *asus)
849{
850 backlight_device_unregister(asus->backlight_device);
851 asus->backlight_device = NULL;
852}
853
854/*
855 * Platform device handlers
856 */
857
858/*
859 * We write our info in page, we begin at offset off and cannot write more
860 * than count bytes. We set eof to 1 if we handle those 2 values. We return the
861 * number of bytes written in page
862 */
863static ssize_t infos_show(struct device *dev, struct device_attribute *attr,
864 char *page)
865{
866 struct asus_laptop *asus = dev_get_drvdata(dev);
867 int len = 0;
868 unsigned long long temp;
869 char buf[16]; /* enough for all info */
870 acpi_status rv;
871
872 /*
873 * We use the easy way, we don't care of off and count,
874 * so we don't set eof to 1
875 */
876
877 len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n");
878 len += sprintf(page + len, "Model reference : %s\n", asus->name);
879 /*
880 * The SFUN method probably allows the original driver to get the list
881 * of features supported by a given model. For now, 0x0100 or 0x0800
882 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
883 * The significance of others is yet to be found.
884 */
885 rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp);
886 if (!ACPI_FAILURE(rv))
887 len += sprintf(page + len, "SFUN value : %#x\n",
888 (uint) temp);
889 /*
890 * The HWRS method return informations about the hardware.
891 * 0x80 bit is for WLAN, 0x100 for Bluetooth.
892 * 0x40 for WWAN, 0x10 for WIMAX.
893 * The significance of others is yet to be found.
894 * We don't currently use this for device detection, and it
895 * takes several seconds to run on some systems.
896 */
897 rv = acpi_evaluate_integer(asus->handle, "HWRS", NULL, &temp);
898 if (!ACPI_FAILURE(rv))
899 len += sprintf(page + len, "HWRS value : %#x\n",
900 (uint) temp);
901 /*
902 * Another value for userspace: the ASYM method returns 0x02 for
903 * battery low and 0x04 for battery critical, its readings tend to be
904 * more accurate than those provided by _BST.
905 * Note: since not all the laptops provide this method, errors are
906 * silently ignored.
907 */
908 rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp);
909 if (!ACPI_FAILURE(rv))
910 len += sprintf(page + len, "ASYM value : %#x\n",
911 (uint) temp);
912 if (asus->dsdt_info) {
913 snprintf(buf, 16, "%d", asus->dsdt_info->length);
914 len += sprintf(page + len, "DSDT length : %s\n", buf);
915 snprintf(buf, 16, "%d", asus->dsdt_info->checksum);
916 len += sprintf(page + len, "DSDT checksum : %s\n", buf);
917 snprintf(buf, 16, "%d", asus->dsdt_info->revision);
918 len += sprintf(page + len, "DSDT revision : %s\n", buf);
919 snprintf(buf, 7, "%s", asus->dsdt_info->oem_id);
920 len += sprintf(page + len, "OEM id : %s\n", buf);
921 snprintf(buf, 9, "%s", asus->dsdt_info->oem_table_id);
922 len += sprintf(page + len, "OEM table id : %s\n", buf);
923 snprintf(buf, 16, "%x", asus->dsdt_info->oem_revision);
924 len += sprintf(page + len, "OEM revision : 0x%s\n", buf);
925 snprintf(buf, 5, "%s", asus->dsdt_info->asl_compiler_id);
926 len += sprintf(page + len, "ASL comp vendor id : %s\n", buf);
927 snprintf(buf, 16, "%x", asus->dsdt_info->asl_compiler_revision);
928 len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf);
929 }
930
931 return len;
932}
933static DEVICE_ATTR_RO(infos);
934
935static ssize_t sysfs_acpi_set(struct asus_laptop *asus,
936 const char *buf, size_t count,
937 const char *method)
938{
939 int rv, value;
940
941 rv = kstrtoint(buf, 0, &value);
942 if (rv < 0)
943 return rv;
944
945 if (write_acpi_int(asus->handle, method, value))
946 return -ENODEV;
947 return count;
948}
949
950/*
951 * LEDD display
952 */
953static ssize_t ledd_show(struct device *dev, struct device_attribute *attr,
954 char *buf)
955{
956 struct asus_laptop *asus = dev_get_drvdata(dev);
957
958 return sprintf(buf, "0x%08x\n", asus->ledd_status);
959}
960
961static ssize_t ledd_store(struct device *dev, struct device_attribute *attr,
962 const char *buf, size_t count)
963{
964 struct asus_laptop *asus = dev_get_drvdata(dev);
965 int rv, value;
966
967 rv = kstrtoint(buf, 0, &value);
968 if (rv < 0)
969 return rv;
970
971 if (write_acpi_int(asus->handle, METHOD_LEDD, value)) {
972 pr_warn("LED display write failed\n");
973 return -ENODEV;
974 }
975
976 asus->ledd_status = (u32) value;
977 return count;
978}
979static DEVICE_ATTR_RW(ledd);
980
981/*
982 * Wireless
983 */
984static int asus_wireless_status(struct asus_laptop *asus, int mask)
985{
986 unsigned long long status;
987 acpi_status rv = AE_OK;
988
989 if (!asus->have_rsts)
990 return (asus->wireless_status & mask) ? 1 : 0;
991
992 rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS,
993 NULL, &status);
994 if (ACPI_FAILURE(rv)) {
995 pr_warn("Error reading Wireless status\n");
996 return -EINVAL;
997 }
998 return !!(status & mask);
999}
1000
1001/*
1002 * WLAN
1003 */
1004static int asus_wlan_set(struct asus_laptop *asus, int status)
1005{
1006 if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) {
1007 pr_warn("Error setting wlan status to %d\n", status);
1008 return -EIO;
1009 }
1010 return 0;
1011}
1012
1013static ssize_t wlan_show(struct device *dev, struct device_attribute *attr,
1014 char *buf)
1015{
1016 struct asus_laptop *asus = dev_get_drvdata(dev);
1017
1018 return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS));
1019}
1020
1021static ssize_t wlan_store(struct device *dev, struct device_attribute *attr,
1022 const char *buf, size_t count)
1023{
1024 struct asus_laptop *asus = dev_get_drvdata(dev);
1025
1026 return sysfs_acpi_set(asus, buf, count, METHOD_WLAN);
1027}
1028static DEVICE_ATTR_RW(wlan);
1029
1030/*e
1031 * Bluetooth
1032 */
1033static int asus_bluetooth_set(struct asus_laptop *asus, int status)
1034{
1035 if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) {
1036 pr_warn("Error setting bluetooth status to %d\n", status);
1037 return -EIO;
1038 }
1039 return 0;
1040}
1041
1042static ssize_t bluetooth_show(struct device *dev, struct device_attribute *attr,
1043 char *buf)
1044{
1045 struct asus_laptop *asus = dev_get_drvdata(dev);
1046
1047 return sprintf(buf, "%d\n", asus_wireless_status(asus, BT_RSTS));
1048}
1049
1050static ssize_t bluetooth_store(struct device *dev,
1051 struct device_attribute *attr, const char *buf,
1052 size_t count)
1053{
1054 struct asus_laptop *asus = dev_get_drvdata(dev);
1055
1056 return sysfs_acpi_set(asus, buf, count, METHOD_BLUETOOTH);
1057}
1058static DEVICE_ATTR_RW(bluetooth);
1059
1060/*
1061 * Wimax
1062 */
1063static int asus_wimax_set(struct asus_laptop *asus, int status)
1064{
1065 if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) {
1066 pr_warn("Error setting wimax status to %d\n", status);
1067 return -EIO;
1068 }
1069 return 0;
1070}
1071
1072static ssize_t wimax_show(struct device *dev, struct device_attribute *attr,
1073 char *buf)
1074{
1075 struct asus_laptop *asus = dev_get_drvdata(dev);
1076
1077 return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS));
1078}
1079
1080static ssize_t wimax_store(struct device *dev, struct device_attribute *attr,
1081 const char *buf, size_t count)
1082{
1083 struct asus_laptop *asus = dev_get_drvdata(dev);
1084
1085 return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX);
1086}
1087static DEVICE_ATTR_RW(wimax);
1088
1089/*
1090 * Wwan
1091 */
1092static int asus_wwan_set(struct asus_laptop *asus, int status)
1093{
1094 if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) {
1095 pr_warn("Error setting wwan status to %d\n", status);
1096 return -EIO;
1097 }
1098 return 0;
1099}
1100
1101static ssize_t wwan_show(struct device *dev, struct device_attribute *attr,
1102 char *buf)
1103{
1104 struct asus_laptop *asus = dev_get_drvdata(dev);
1105
1106 return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS));
1107}
1108
1109static ssize_t wwan_store(struct device *dev, struct device_attribute *attr,
1110 const char *buf, size_t count)
1111{
1112 struct asus_laptop *asus = dev_get_drvdata(dev);
1113
1114 return sysfs_acpi_set(asus, buf, count, METHOD_WWAN);
1115}
1116static DEVICE_ATTR_RW(wwan);
1117
1118/*
1119 * Display
1120 */
1121static void asus_set_display(struct asus_laptop *asus, int value)
1122{
1123 /* no sanity check needed for now */
1124 if (write_acpi_int(asus->handle, METHOD_SWITCH_DISPLAY, value))
1125 pr_warn("Error setting display\n");
1126 return;
1127}
1128
1129/*
1130 * Experimental support for display switching. As of now: 1 should activate
1131 * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI.
1132 * Any combination (bitwise) of these will suffice. I never actually tested 4
1133 * displays hooked up simultaneously, so be warned. See the acpi4asus README
1134 * for more info.
1135 */
1136static ssize_t display_store(struct device *dev, struct device_attribute *attr,
1137 const char *buf, size_t count)
1138{
1139 struct asus_laptop *asus = dev_get_drvdata(dev);
1140 int rv, value;
1141
1142 rv = kstrtoint(buf, 0, &value);
1143 if (rv < 0)
1144 return rv;
1145
1146 asus_set_display(asus, value);
1147 return count;
1148}
1149static DEVICE_ATTR_WO(display);
1150
1151/*
1152 * Light Sens
1153 */
1154static void asus_als_switch(struct asus_laptop *asus, int value)
1155{
1156 int ret;
1157
1158 if (asus->is_pega_lucid) {
1159 ret = asus_pega_lucid_set(asus, PEGA_ALS, value);
1160 if (!ret)
1161 ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value);
1162 } else {
1163 ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value);
1164 }
1165 if (ret)
1166 pr_warning("Error setting light sensor switch\n");
1167
1168 asus->light_switch = value;
1169}
1170
1171static ssize_t ls_switch_show(struct device *dev, struct device_attribute *attr,
1172 char *buf)
1173{
1174 struct asus_laptop *asus = dev_get_drvdata(dev);
1175
1176 return sprintf(buf, "%d\n", asus->light_switch);
1177}
1178
1179static ssize_t ls_switch_store(struct device *dev,
1180 struct device_attribute *attr, const char *buf,
1181 size_t count)
1182{
1183 struct asus_laptop *asus = dev_get_drvdata(dev);
1184 int rv, value;
1185
1186 rv = kstrtoint(buf, 0, &value);
1187 if (rv < 0)
1188 return rv;
1189
1190 asus_als_switch(asus, value ? 1 : 0);
1191 return count;
1192}
1193static DEVICE_ATTR_RW(ls_switch);
1194
1195static void asus_als_level(struct asus_laptop *asus, int value)
1196{
1197 if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value))
1198 pr_warn("Error setting light sensor level\n");
1199 asus->light_level = value;
1200}
1201
1202static ssize_t ls_level_show(struct device *dev, struct device_attribute *attr,
1203 char *buf)
1204{
1205 struct asus_laptop *asus = dev_get_drvdata(dev);
1206
1207 return sprintf(buf, "%d\n", asus->light_level);
1208}
1209
1210static ssize_t ls_level_store(struct device *dev, struct device_attribute *attr,
1211 const char *buf, size_t count)
1212{
1213 struct asus_laptop *asus = dev_get_drvdata(dev);
1214 int rv, value;
1215
1216 rv = kstrtoint(buf, 0, &value);
1217 if (rv < 0)
1218 return rv;
1219
1220 value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
1221 /* 0 <= value <= 15 */
1222 asus_als_level(asus, value);
1223
1224 return count;
1225}
1226static DEVICE_ATTR_RW(ls_level);
1227
1228static int pega_int_read(struct asus_laptop *asus, int arg, int *result)
1229{
1230 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1231 int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg,
1232 &buffer);
1233 if (!err) {
1234 union acpi_object *obj = buffer.pointer;
1235 if (obj && obj->type == ACPI_TYPE_INTEGER)
1236 *result = obj->integer.value;
1237 else
1238 err = -EIO;
1239 }
1240 return err;
1241}
1242
1243static ssize_t ls_value_show(struct device *dev, struct device_attribute *attr,
1244 char *buf)
1245{
1246 struct asus_laptop *asus = dev_get_drvdata(dev);
1247 int err, hi, lo;
1248
1249 err = pega_int_read(asus, PEGA_READ_ALS_H, &hi);
1250 if (!err)
1251 err = pega_int_read(asus, PEGA_READ_ALS_L, &lo);
1252 if (!err)
1253 return sprintf(buf, "%d\n", 10 * hi + lo);
1254 return err;
1255}
1256static DEVICE_ATTR_RO(ls_value);
1257
1258/*
1259 * GPS
1260 */
1261static int asus_gps_status(struct asus_laptop *asus)
1262{
1263 unsigned long long status;
1264 acpi_status rv;
1265
1266 rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS,
1267 NULL, &status);
1268 if (ACPI_FAILURE(rv)) {
1269 pr_warn("Error reading GPS status\n");
1270 return -ENODEV;
1271 }
1272 return !!status;
1273}
1274
1275static int asus_gps_switch(struct asus_laptop *asus, int status)
1276{
1277 const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF;
1278
1279 if (write_acpi_int(asus->handle, meth, 0x02))
1280 return -ENODEV;
1281 return 0;
1282}
1283
1284static ssize_t gps_show(struct device *dev, struct device_attribute *attr,
1285 char *buf)
1286{
1287 struct asus_laptop *asus = dev_get_drvdata(dev);
1288
1289 return sprintf(buf, "%d\n", asus_gps_status(asus));
1290}
1291
1292static ssize_t gps_store(struct device *dev, struct device_attribute *attr,
1293 const char *buf, size_t count)
1294{
1295 struct asus_laptop *asus = dev_get_drvdata(dev);
1296 int rv, value;
1297 int ret;
1298
1299 rv = kstrtoint(buf, 0, &value);
1300 if (rv < 0)
1301 return rv;
1302 ret = asus_gps_switch(asus, !!value);
1303 if (ret)
1304 return ret;
1305 rfkill_set_sw_state(asus->gps.rfkill, !value);
1306 return count;
1307}
1308static DEVICE_ATTR_RW(gps);
1309
1310/*
1311 * rfkill
1312 */
1313static int asus_gps_rfkill_set(void *data, bool blocked)
1314{
1315 struct asus_laptop *asus = data;
1316
1317 return asus_gps_switch(asus, !blocked);
1318}
1319
1320static const struct rfkill_ops asus_gps_rfkill_ops = {
1321 .set_block = asus_gps_rfkill_set,
1322};
1323
1324static int asus_rfkill_set(void *data, bool blocked)
1325{
1326 struct asus_rfkill *rfk = data;
1327 struct asus_laptop *asus = rfk->asus;
1328
1329 if (rfk->control_id == WL_RSTS)
1330 return asus_wlan_set(asus, !blocked);
1331 else if (rfk->control_id == BT_RSTS)
1332 return asus_bluetooth_set(asus, !blocked);
1333 else if (rfk->control_id == WM_RSTS)
1334 return asus_wimax_set(asus, !blocked);
1335 else if (rfk->control_id == WW_RSTS)
1336 return asus_wwan_set(asus, !blocked);
1337
1338 return -EINVAL;
1339}
1340
1341static const struct rfkill_ops asus_rfkill_ops = {
1342 .set_block = asus_rfkill_set,
1343};
1344
1345static void asus_rfkill_terminate(struct asus_rfkill *rfk)
1346{
1347 if (!rfk->rfkill)
1348 return ;
1349
1350 rfkill_unregister(rfk->rfkill);
1351 rfkill_destroy(rfk->rfkill);
1352 rfk->rfkill = NULL;
1353}
1354
1355static void asus_rfkill_exit(struct asus_laptop *asus)
1356{
1357 asus_rfkill_terminate(&asus->wwan);
1358 asus_rfkill_terminate(&asus->bluetooth);
1359 asus_rfkill_terminate(&asus->wlan);
1360 asus_rfkill_terminate(&asus->gps);
1361}
1362
1363static int asus_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
1364 const char *name, int control_id, int type,
1365 const struct rfkill_ops *ops)
1366{
1367 int result;
1368
1369 rfk->control_id = control_id;
1370 rfk->asus = asus;
1371 rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev,
1372 type, ops, rfk);
1373 if (!rfk->rfkill)
1374 return -EINVAL;
1375
1376 result = rfkill_register(rfk->rfkill);
1377 if (result) {
1378 rfkill_destroy(rfk->rfkill);
1379 rfk->rfkill = NULL;
1380 }
1381
1382 return result;
1383}
1384
1385static int asus_rfkill_init(struct asus_laptop *asus)
1386{
1387 int result = 0;
1388
1389 if (asus->is_pega_lucid)
1390 return -ENODEV;
1391
1392 if (!acpi_check_handle(asus->handle, METHOD_GPS_ON, NULL) &&
1393 !acpi_check_handle(asus->handle, METHOD_GPS_OFF, NULL) &&
1394 !acpi_check_handle(asus->handle, METHOD_GPS_STATUS, NULL))
1395 result = asus_rfkill_setup(asus, &asus->gps, "asus-gps",
1396 -1, RFKILL_TYPE_GPS,
1397 &asus_gps_rfkill_ops);
1398 if (result)
1399 goto exit;
1400
1401
1402 if (!acpi_check_handle(asus->handle, METHOD_WLAN, NULL) &&
1403 asus->wled_type == TYPE_RFKILL)
1404 result = asus_rfkill_setup(asus, &asus->wlan, "asus-wlan",
1405 WL_RSTS, RFKILL_TYPE_WLAN,
1406 &asus_rfkill_ops);
1407 if (result)
1408 goto exit;
1409
1410 if (!acpi_check_handle(asus->handle, METHOD_BLUETOOTH, NULL) &&
1411 asus->bled_type == TYPE_RFKILL)
1412 result = asus_rfkill_setup(asus, &asus->bluetooth,
1413 "asus-bluetooth", BT_RSTS,
1414 RFKILL_TYPE_BLUETOOTH,
1415 &asus_rfkill_ops);
1416 if (result)
1417 goto exit;
1418
1419 if (!acpi_check_handle(asus->handle, METHOD_WWAN, NULL))
1420 result = asus_rfkill_setup(asus, &asus->wwan, "asus-wwan",
1421 WW_RSTS, RFKILL_TYPE_WWAN,
1422 &asus_rfkill_ops);
1423 if (result)
1424 goto exit;
1425
1426 if (!acpi_check_handle(asus->handle, METHOD_WIMAX, NULL))
1427 result = asus_rfkill_setup(asus, &asus->wimax, "asus-wimax",
1428 WM_RSTS, RFKILL_TYPE_WIMAX,
1429 &asus_rfkill_ops);
1430 if (result)
1431 goto exit;
1432
1433exit:
1434 if (result)
1435 asus_rfkill_exit(asus);
1436
1437 return result;
1438}
1439
1440static int pega_rfkill_set(void *data, bool blocked)
1441{
1442 struct asus_rfkill *rfk = data;
1443
1444 int ret = asus_pega_lucid_set(rfk->asus, rfk->control_id, !blocked);
1445 return ret;
1446}
1447
1448static const struct rfkill_ops pega_rfkill_ops = {
1449 .set_block = pega_rfkill_set,
1450};
1451
1452static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
1453 const char *name, int controlid, int rfkill_type)
1454{
1455 return asus_rfkill_setup(asus, rfk, name, controlid, rfkill_type,
1456 &pega_rfkill_ops);
1457}
1458
1459static int pega_rfkill_init(struct asus_laptop *asus)
1460{
1461 int ret = 0;
1462
1463 if(!asus->is_pega_lucid)
1464 return -ENODEV;
1465
1466 ret = pega_rfkill_setup(asus, &asus->wlan, "pega-wlan",
1467 PEGA_WLAN, RFKILL_TYPE_WLAN);
1468 if(ret)
1469 goto exit;
1470
1471 ret = pega_rfkill_setup(asus, &asus->bluetooth, "pega-bt",
1472 PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH);
1473 if(ret)
1474 goto exit;
1475
1476 ret = pega_rfkill_setup(asus, &asus->wwan, "pega-wwan",
1477 PEGA_WWAN, RFKILL_TYPE_WWAN);
1478
1479exit:
1480 if (ret)
1481 asus_rfkill_exit(asus);
1482
1483 return ret;
1484}
1485
1486/*
1487 * Input device (i.e. hotkeys)
1488 */
1489static void asus_input_notify(struct asus_laptop *asus, int event)
1490{
1491 if (!asus->inputdev)
1492 return ;
1493 if (!sparse_keymap_report_event(asus->inputdev, event, 1, true))
1494 pr_info("Unknown key %x pressed\n", event);
1495}
1496
1497static int asus_input_init(struct asus_laptop *asus)
1498{
1499 struct input_dev *input;
1500 int error;
1501
1502 input = input_allocate_device();
1503 if (!input)
1504 return -ENOMEM;
1505
1506 input->name = "Asus Laptop extra buttons";
1507 input->phys = ASUS_LAPTOP_FILE "/input0";
1508 input->id.bustype = BUS_HOST;
1509 input->dev.parent = &asus->platform_device->dev;
1510
1511 error = sparse_keymap_setup(input, asus_keymap, NULL);
1512 if (error) {
1513 pr_err("Unable to setup input device keymap\n");
1514 goto err_free_dev;
1515 }
1516 error = input_register_device(input);
1517 if (error) {
1518 pr_warn("Unable to register input device\n");
1519 goto err_free_dev;
1520 }
1521
1522 asus->inputdev = input;
1523 return 0;
1524
1525err_free_dev:
1526 input_free_device(input);
1527 return error;
1528}
1529
1530static void asus_input_exit(struct asus_laptop *asus)
1531{
1532 if (asus->inputdev)
1533 input_unregister_device(asus->inputdev);
1534 asus->inputdev = NULL;
1535}
1536
1537/*
1538 * ACPI driver
1539 */
1540static void asus_acpi_notify(struct acpi_device *device, u32 event)
1541{
1542 struct asus_laptop *asus = acpi_driver_data(device);
1543 u16 count;
1544
1545 /* TODO Find a better way to handle events count. */
1546 count = asus->event_count[event % 128]++;
1547 acpi_bus_generate_netlink_event(asus->device->pnp.device_class,
1548 dev_name(&asus->device->dev), event,
1549 count);
1550
1551 if (event >= ATKD_BRNUP_MIN && event <= ATKD_BRNUP_MAX)
1552 event = ATKD_BRNUP;
1553 else if (event >= ATKD_BRNDOWN_MIN &&
1554 event <= ATKD_BRNDOWN_MAX)
1555 event = ATKD_BRNDOWN;
1556
1557 /* Brightness events are special */
1558 if (event == ATKD_BRNDOWN || event == ATKD_BRNUP) {
1559 if (asus->backlight_device != NULL) {
1560 /* Update the backlight device. */
1561 asus_backlight_notify(asus);
1562 return ;
1563 }
1564 }
1565
1566 /* Accelerometer "coarse orientation change" event */
1567 if (asus->pega_accel_poll && event == 0xEA) {
1568 kobject_uevent(&asus->pega_accel_poll->input->dev.kobj,
1569 KOBJ_CHANGE);
1570 return ;
1571 }
1572
1573 asus_input_notify(asus, event);
1574}
1575
1576static struct attribute *asus_attributes[] = {
1577 &dev_attr_infos.attr,
1578 &dev_attr_wlan.attr,
1579 &dev_attr_bluetooth.attr,
1580 &dev_attr_wimax.attr,
1581 &dev_attr_wwan.attr,
1582 &dev_attr_display.attr,
1583 &dev_attr_ledd.attr,
1584 &dev_attr_ls_value.attr,
1585 &dev_attr_ls_level.attr,
1586 &dev_attr_ls_switch.attr,
1587 &dev_attr_gps.attr,
1588 NULL
1589};
1590
1591static umode_t asus_sysfs_is_visible(struct kobject *kobj,
1592 struct attribute *attr,
1593 int idx)
1594{
1595 struct device *dev = container_of(kobj, struct device, kobj);
1596 struct platform_device *pdev = to_platform_device(dev);
1597 struct asus_laptop *asus = platform_get_drvdata(pdev);
1598 acpi_handle handle = asus->handle;
1599 bool supported;
1600
1601 if (asus->is_pega_lucid) {
1602 /* no ls_level interface on the Lucid */
1603 if (attr == &dev_attr_ls_switch.attr)
1604 supported = true;
1605 else if (attr == &dev_attr_ls_level.attr)
1606 supported = false;
1607 else
1608 goto normal;
1609
1610 return supported ? attr->mode : 0;
1611 }
1612
1613normal:
1614 if (attr == &dev_attr_wlan.attr) {
1615 supported = !acpi_check_handle(handle, METHOD_WLAN, NULL);
1616
1617 } else if (attr == &dev_attr_bluetooth.attr) {
1618 supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL);
1619
1620 } else if (attr == &dev_attr_display.attr) {
1621 supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL);
1622
1623 } else if (attr == &dev_attr_wimax.attr) {
1624 supported =
1625 !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL);
1626
1627 } else if (attr == &dev_attr_wwan.attr) {
1628 supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL);
1629
1630 } else if (attr == &dev_attr_ledd.attr) {
1631 supported = !acpi_check_handle(handle, METHOD_LEDD, NULL);
1632
1633 } else if (attr == &dev_attr_ls_switch.attr ||
1634 attr == &dev_attr_ls_level.attr) {
1635 supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) &&
1636 !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL);
1637 } else if (attr == &dev_attr_ls_value.attr) {
1638 supported = asus->is_pega_lucid;
1639 } else if (attr == &dev_attr_gps.attr) {
1640 supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) &&
1641 !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) &&
1642 !acpi_check_handle(handle, METHOD_GPS_STATUS, NULL);
1643 } else {
1644 supported = true;
1645 }
1646
1647 return supported ? attr->mode : 0;
1648}
1649
1650
1651static const struct attribute_group asus_attr_group = {
1652 .is_visible = asus_sysfs_is_visible,
1653 .attrs = asus_attributes,
1654};
1655
1656static int asus_platform_init(struct asus_laptop *asus)
1657{
1658 int result;
1659
1660 asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, -1);
1661 if (!asus->platform_device)
1662 return -ENOMEM;
1663 platform_set_drvdata(asus->platform_device, asus);
1664
1665 result = platform_device_add(asus->platform_device);
1666 if (result)
1667 goto fail_platform_device;
1668
1669 result = sysfs_create_group(&asus->platform_device->dev.kobj,
1670 &asus_attr_group);
1671 if (result)
1672 goto fail_sysfs;
1673
1674 return 0;
1675
1676fail_sysfs:
1677 platform_device_del(asus->platform_device);
1678fail_platform_device:
1679 platform_device_put(asus->platform_device);
1680 return result;
1681}
1682
1683static void asus_platform_exit(struct asus_laptop *asus)
1684{
1685 sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group);
1686 platform_device_unregister(asus->platform_device);
1687}
1688
1689static struct platform_driver platform_driver = {
1690 .driver = {
1691 .name = ASUS_LAPTOP_FILE,
1692 },
1693};
1694
1695/*
1696 * This function is used to initialize the context with right values. In this
1697 * method, we can make all the detection we want, and modify the asus_laptop
1698 * struct
1699 */
1700static int asus_laptop_get_info(struct asus_laptop *asus)
1701{
1702 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1703 union acpi_object *model = NULL;
1704 unsigned long long bsts_result;
1705 char *string = NULL;
1706 acpi_status status;
1707
1708 /*
1709 * Get DSDT headers early enough to allow for differentiating between
1710 * models, but late enough to allow acpi_bus_register_driver() to fail
1711 * before doing anything ACPI-specific. Should we encounter a machine,
1712 * which needs special handling (i.e. its hotkey device has a different
1713 * HID), this bit will be moved.
1714 */
1715 status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info);
1716 if (ACPI_FAILURE(status))
1717 pr_warn("Couldn't get the DSDT table header\n");
1718
1719 /* We have to write 0 on init this far for all ASUS models */
1720 if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) {
1721 pr_err("Hotkey initialization failed\n");
1722 return -ENODEV;
1723 }
1724
1725 /* This needs to be called for some laptops to init properly */
1726 status =
1727 acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result);
1728 if (ACPI_FAILURE(status))
1729 pr_warn("Error calling BSTS\n");
1730 else if (bsts_result)
1731 pr_notice("BSTS called, 0x%02x returned\n",
1732 (uint) bsts_result);
1733
1734 /* This too ... */
1735 if (write_acpi_int(asus->handle, "CWAP", wapf))
1736 pr_err("Error calling CWAP(%d)\n", wapf);
1737 /*
1738 * Try to match the object returned by INIT to the specific model.
1739 * Handle every possible object (or the lack of thereof) the DSDT
1740 * writers might throw at us. When in trouble, we pass NULL to
1741 * asus_model_match() and try something completely different.
1742 */
1743 if (buffer.pointer) {
1744 model = buffer.pointer;
1745 switch (model->type) {
1746 case ACPI_TYPE_STRING:
1747 string = model->string.pointer;
1748 break;
1749 case ACPI_TYPE_BUFFER:
1750 string = model->buffer.pointer;
1751 break;
1752 default:
1753 string = "";
1754 break;
1755 }
1756 }
1757 asus->name = kstrdup(string, GFP_KERNEL);
1758 if (!asus->name) {
1759 kfree(buffer.pointer);
1760 return -ENOMEM;
1761 }
1762
1763 if (string)
1764 pr_notice(" %s model detected\n", string);
1765
1766 if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL))
1767 asus->have_rsts = true;
1768
1769 kfree(model);
1770
1771 return AE_OK;
1772}
1773
1774static int asus_acpi_init(struct asus_laptop *asus)
1775{
1776 int result = 0;
1777
1778 result = acpi_bus_get_status(asus->device);
1779 if (result)
1780 return result;
1781 if (!asus->device->status.present) {
1782 pr_err("Hotkey device not present, aborting\n");
1783 return -ENODEV;
1784 }
1785
1786 result = asus_laptop_get_info(asus);
1787 if (result)
1788 return result;
1789
1790 if (!strcmp(bled_type, "led"))
1791 asus->bled_type = TYPE_LED;
1792 else if (!strcmp(bled_type, "rfkill"))
1793 asus->bled_type = TYPE_RFKILL;
1794
1795 if (!strcmp(wled_type, "led"))
1796 asus->wled_type = TYPE_LED;
1797 else if (!strcmp(wled_type, "rfkill"))
1798 asus->wled_type = TYPE_RFKILL;
1799
1800 if (bluetooth_status >= 0)
1801 asus_bluetooth_set(asus, !!bluetooth_status);
1802
1803 if (wlan_status >= 0)
1804 asus_wlan_set(asus, !!wlan_status);
1805
1806 if (wimax_status >= 0)
1807 asus_wimax_set(asus, !!wimax_status);
1808
1809 if (wwan_status >= 0)
1810 asus_wwan_set(asus, !!wwan_status);
1811
1812 /* Keyboard Backlight is on by default */
1813 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL))
1814 asus_kled_set(asus, 1);
1815
1816 /* LED display is off by default */
1817 asus->ledd_status = 0xFFF;
1818
1819 /* Set initial values of light sensor and level */
1820 asus->light_switch = !!als_status;
1821 asus->light_level = 5; /* level 5 for sensor sensitivity */
1822
1823 if (asus->is_pega_lucid) {
1824 asus_als_switch(asus, asus->light_switch);
1825 } else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) &&
1826 !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) {
1827 asus_als_switch(asus, asus->light_switch);
1828 asus_als_level(asus, asus->light_level);
1829 }
1830
1831 return result;
1832}
1833
1834static void asus_dmi_check(void)
1835{
1836 const char *model;
1837
1838 model = dmi_get_system_info(DMI_PRODUCT_NAME);
1839 if (!model)
1840 return;
1841
1842 /* On L1400B WLED control the sound card, don't mess with it ... */
1843 if (strncmp(model, "L1400B", 6) == 0) {
1844 wlan_status = -1;
1845 }
1846}
1847
1848static bool asus_device_present;
1849
1850static int asus_acpi_add(struct acpi_device *device)
1851{
1852 struct asus_laptop *asus;
1853 int result;
1854
1855 pr_notice("Asus Laptop Support version %s\n",
1856 ASUS_LAPTOP_VERSION);
1857 asus = kzalloc(sizeof(struct asus_laptop), GFP_KERNEL);
1858 if (!asus)
1859 return -ENOMEM;
1860 asus->handle = device->handle;
1861 strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME);
1862 strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS);
1863 device->driver_data = asus;
1864 asus->device = device;
1865
1866 asus_dmi_check();
1867
1868 result = asus_acpi_init(asus);
1869 if (result)
1870 goto fail_platform;
1871
1872 /*
1873 * Need platform type detection first, then the platform
1874 * device. It is used as a parent for the sub-devices below.
1875 */
1876 asus->is_pega_lucid = asus_check_pega_lucid(asus);
1877 result = asus_platform_init(asus);
1878 if (result)
1879 goto fail_platform;
1880
1881 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1882 result = asus_backlight_init(asus);
1883 if (result)
1884 goto fail_backlight;
1885 }
1886
1887 result = asus_input_init(asus);
1888 if (result)
1889 goto fail_input;
1890
1891 result = asus_led_init(asus);
1892 if (result)
1893 goto fail_led;
1894
1895 result = asus_rfkill_init(asus);
1896 if (result && result != -ENODEV)
1897 goto fail_rfkill;
1898
1899 result = pega_accel_init(asus);
1900 if (result && result != -ENODEV)
1901 goto fail_pega_accel;
1902
1903 result = pega_rfkill_init(asus);
1904 if (result && result != -ENODEV)
1905 goto fail_pega_rfkill;
1906
1907 asus_device_present = true;
1908 return 0;
1909
1910fail_pega_rfkill:
1911 pega_accel_exit(asus);
1912fail_pega_accel:
1913 asus_rfkill_exit(asus);
1914fail_rfkill:
1915 asus_led_exit(asus);
1916fail_led:
1917 asus_input_exit(asus);
1918fail_input:
1919 asus_backlight_exit(asus);
1920fail_backlight:
1921 asus_platform_exit(asus);
1922fail_platform:
1923 kfree(asus);
1924
1925 return result;
1926}
1927
1928static int asus_acpi_remove(struct acpi_device *device)
1929{
1930 struct asus_laptop *asus = acpi_driver_data(device);
1931
1932 asus_backlight_exit(asus);
1933 asus_rfkill_exit(asus);
1934 asus_led_exit(asus);
1935 asus_input_exit(asus);
1936 pega_accel_exit(asus);
1937 asus_platform_exit(asus);
1938
1939 kfree(asus->name);
1940 kfree(asus);
1941 return 0;
1942}
1943
1944static const struct acpi_device_id asus_device_ids[] = {
1945 {"ATK0100", 0},
1946 {"ATK0101", 0},
1947 {"", 0},
1948};
1949MODULE_DEVICE_TABLE(acpi, asus_device_ids);
1950
1951static struct acpi_driver asus_acpi_driver = {
1952 .name = ASUS_LAPTOP_NAME,
1953 .class = ASUS_LAPTOP_CLASS,
1954 .owner = THIS_MODULE,
1955 .ids = asus_device_ids,
1956 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1957 .ops = {
1958 .add = asus_acpi_add,
1959 .remove = asus_acpi_remove,
1960 .notify = asus_acpi_notify,
1961 },
1962};
1963
1964static int __init asus_laptop_init(void)
1965{
1966 int result;
1967
1968 result = platform_driver_register(&platform_driver);
1969 if (result < 0)
1970 return result;
1971
1972 result = acpi_bus_register_driver(&asus_acpi_driver);
1973 if (result < 0)
1974 goto fail_acpi_driver;
1975 if (!asus_device_present) {
1976 result = -ENODEV;
1977 goto fail_no_device;
1978 }
1979 return 0;
1980
1981fail_no_device:
1982 acpi_bus_unregister_driver(&asus_acpi_driver);
1983fail_acpi_driver:
1984 platform_driver_unregister(&platform_driver);
1985 return result;
1986}
1987
1988static void __exit asus_laptop_exit(void)
1989{
1990 acpi_bus_unregister_driver(&asus_acpi_driver);
1991 platform_driver_unregister(&platform_driver);
1992}
1993
1994module_init(asus_laptop_init);
1995module_exit(asus_laptop_exit);