2 * asus-laptop.c - Asus Laptop Support
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
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.
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.
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
24 * The development page for this driver is located at
25 * http://sourceforge.net/projects/acpi4asus/
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
37 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
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>
59 #define ASUS_LAPTOP_VERSION "0.42"
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."
67 MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary");
68 MODULE_DESCRIPTION(ASUS_LAPTOP_NAME);
69 MODULE_LICENSE("GPL");
72 * WAPF defines the behavior of the Fn+Fx wlan key
73 * The significance of values is yet to be found, but
75 * Bit | Bluetooth | WLAN
76 * 0 | Hardware | Hardware
77 * 1 | Hardware | Software
78 * 4 | Software | Software
81 module_param(wapf, uint, 0444);
82 MODULE_PARM_DESC(wapf, "WAPF value");
84 static char *wled_type = "unknown";
85 static char *bled_type = "unknown";
87 module_param(wled_type, charp, 0444);
88 MODULE_PARM_DESC(wled_type, "Set the wled type on boot "
89 "(unknown, led or rfkill). "
90 "default is unknown");
92 module_param(bled_type, charp, 0444);
93 MODULE_PARM_DESC(bled_type, "Set the bled type on boot "
94 "(unknown, led or rfkill). "
95 "default is unknown");
97 static int wlan_status = 1;
98 static int bluetooth_status = 1;
99 static int wimax_status = -1;
100 static int wwan_status = -1;
101 static int als_status;
103 module_param(wlan_status, int, 0444);
104 MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot "
105 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
108 module_param(bluetooth_status, int, 0444);
109 MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot "
110 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
113 module_param(wimax_status, int, 0444);
114 MODULE_PARM_DESC(wimax_status, "Set the wireless status on boot "
115 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
118 module_param(wwan_status, int, 0444);
119 MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot "
120 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
123 module_param(als_status, int, 0444);
124 MODULE_PARM_DESC(als_status, "Set the ALS status on boot "
125 "(0 = disabled, 1 = enabled). "
129 * Some events we use, same for all Asus
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
141 * Known bits returned by \_SB.ATKD.HWRS
144 #define BT_HWRS 0x100
147 * Flags for hotk status
148 * WL_ON and BT_ON are also used for wireless_status()
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 */
155 /* WLED and BLED type */
156 #define TYPE_UNKNOWN 0
158 #define TYPE_RFKILL 2
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) */
168 #define METHOD_LEDD "SLCM"
172 * WLED and BLED are not handled like other XLED, because in some dsdt
173 * they also control the WLAN/Bluetooth device.
175 #define METHOD_WLAN "WLED"
176 #define METHOD_BLUETOOTH "BLED"
179 #define METHOD_WWAN "GSMC"
180 #define METHOD_WIMAX "WMXC"
182 #define METHOD_WL_STATUS "RSTS"
185 #define METHOD_BRIGHTNESS_SET "SPLV"
186 #define METHOD_BRIGHTNESS_GET "GPLV"
189 #define METHOD_SWITCH_DISPLAY "SDSP"
191 #define METHOD_ALS_CONTROL "ALSC" /* Z71A Z71V */
192 #define METHOD_ALS_LEVEL "ALSL" /* Z71A Z71V */
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"
201 #define METHOD_KBD_LIGHT_SET "SLKB"
202 #define METHOD_KBD_LIGHT_GET "GLKB"
204 /* For Pegatron Lucid tablet */
205 #define DEVICE_NAME_PEGA "Lucid"
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
215 #define METHOD_PEGA_READ "RDLN"
216 #define PEGA_READ_ALS_H 0x02
217 #define PEGA_READ_ALS_L 0x03
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
228 * Define a specific led structure to keep the main structure clean
232 struct work_struct work;
233 struct led_classdev led;
234 struct asus_laptop *asus;
239 * Same thing for rfkill
242 /* type of control. Maps to PEGA_* values or *_RSTS */
244 struct rfkill *rfkill;
245 struct asus_laptop *asus;
249 * This is the main structure, we can use it to store anything interesting
250 * about the hotk device
253 char *name; /* laptop name */
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;
260 struct input_dev *inputdev;
261 struct key_entry *keymap;
262 struct input_polled_dev *pega_accel_poll;
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;
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;
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 */
297 static const struct key_entry asus_keymap[] = {
298 /* Lenovo SL Specific keycodes */
299 {KE_KEY, 0x02, { KEY_SCREENLOCK } },
300 {KE_KEY, 0x05, { KEY_WLAN } },
301 {KE_KEY, 0x08, { KEY_F13 } },
302 {KE_KEY, 0x09, { KEY_PROG2 } }, /* Dock */
303 {KE_KEY, 0x17, { KEY_ZOOM } },
304 {KE_KEY, 0x1f, { KEY_BATTERY } },
305 /* End of Lenovo SL Specific keycodes */
306 {KE_KEY, ATKD_BRNDOWN, { KEY_BRIGHTNESSDOWN } },
307 {KE_KEY, ATKD_BRNUP, { KEY_BRIGHTNESSUP } },
308 {KE_KEY, 0x30, { KEY_VOLUMEUP } },
309 {KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
310 {KE_KEY, 0x32, { KEY_MUTE } },
311 {KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
312 {KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
313 {KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
314 {KE_KEY, 0x41, { KEY_NEXTSONG } },
315 {KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
316 {KE_KEY, 0x45, { KEY_PLAYPAUSE } },
317 {KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
318 {KE_KEY, 0x50, { KEY_EMAIL } },
319 {KE_KEY, 0x51, { KEY_WWW } },
320 {KE_KEY, 0x55, { KEY_CALC } },
321 {KE_IGNORE, 0x57, }, /* Battery mode */
322 {KE_IGNORE, 0x58, }, /* AC mode */
323 {KE_KEY, 0x5C, { KEY_SCREENLOCK } }, /* Screenlock */
324 {KE_KEY, 0x5D, { KEY_WLAN } }, /* WLAN Toggle */
325 {KE_KEY, 0x5E, { KEY_WLAN } }, /* WLAN Enable */
326 {KE_KEY, 0x5F, { KEY_WLAN } }, /* WLAN Disable */
327 {KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
328 {KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
329 {KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
330 {KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
331 {KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
332 {KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
333 {KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
334 {KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
335 {KE_KEY, 0x6A, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad Fn + F9 */
336 {KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad */
337 {KE_KEY, 0x6C, { KEY_SLEEP } }, /* Suspend */
338 {KE_KEY, 0x6D, { KEY_SLEEP } }, /* Hibernate */
339 {KE_IGNORE, 0x6E, }, /* Low Battery notification */
340 {KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
341 {KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
342 {KE_KEY, 0x82, { KEY_CAMERA } },
343 {KE_KEY, 0x88, { KEY_RFKILL } }, /* Radio Toggle Key */
344 {KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
345 {KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
346 {KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
347 {KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
348 {KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
349 {KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
350 {KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
351 {KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
352 {KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
353 {KE_KEY, 0x95, { KEY_MEDIA } },
354 {KE_KEY, 0x99, { KEY_PHONE } },
355 {KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
356 {KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
357 {KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
358 {KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
359 {KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
360 {KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
361 {KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
362 {KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
363 {KE_KEY, 0xB5, { KEY_CALC } },
364 {KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
365 {KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
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
375 * returns 0 if write is successful, -1 else.
377 static int write_acpi_int_ret(acpi_handle handle, const char *method, int val,
378 struct acpi_buffer *output)
380 struct acpi_object_list params; /* list of input parameters (an int) */
381 union acpi_object in_obj; /* the only param we use */
388 params.pointer = &in_obj;
389 in_obj.type = ACPI_TYPE_INTEGER;
390 in_obj.integer.value = val;
392 status = acpi_evaluate_object(handle, (char *)method, ¶ms, output);
399 static int write_acpi_int(acpi_handle handle, const char *method, int val)
401 return write_acpi_int_ret(handle, method, val, NULL);
404 static int acpi_check_handle(acpi_handle handle, const char *method,
413 status = acpi_get_handle(handle, (char *)method,
418 status = acpi_get_handle(handle, (char *)method,
422 if (status != AE_OK) {
424 pr_warn("Error finding %s\n", method);
430 static bool asus_check_pega_lucid(struct asus_laptop *asus)
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);
438 static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable)
440 char *method = enable ? METHOD_PEGA_ENABLE : METHOD_PEGA_DISABLE;
441 return write_acpi_int(asus->handle, method, unit);
444 static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method)
447 unsigned long long val;
448 for (i = 0; i < PEGA_ACC_RETRIES; i++) {
449 acpi_evaluate_integer(asus->handle, method, NULL, &val);
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))
461 return clamp_val((short)val, -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP);
464 static void pega_accel_poll(struct input_polled_dev *ipd)
466 struct device *parent = ipd->input->dev.parent;
467 struct asus_laptop *asus = dev_get_drvdata(parent);
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);
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);
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);
495 static void pega_accel_exit(struct asus_laptop *asus)
497 if (asus->pega_accel_poll) {
498 input_unregister_polled_device(asus->pega_accel_poll);
499 input_free_polled_device(asus->pega_accel_poll);
501 asus->pega_accel_poll = NULL;
504 static int pega_accel_init(struct asus_laptop *asus)
507 struct input_polled_dev *ipd;
509 if (!asus->is_pega_lucid)
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))
517 ipd = input_allocate_polled_device();
521 ipd->poll = pega_accel_poll;
522 ipd->poll_interval = 125;
523 ipd->poll_interval_min = 50;
524 ipd->poll_interval_max = 2000;
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;
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);
539 err = input_register_polled_device(ipd);
543 asus->pega_accel_poll = ipd;
547 input_free_polled_device(ipd);
551 /* Generic LED function */
552 static int asus_led_set(struct asus_laptop *asus, const char *method,
555 if (!strcmp(method, METHOD_MLED))
557 else if (!strcmp(method, METHOD_GLED))
562 return write_acpi_int(asus->handle, method, value);
568 /* /sys/class/led handlers */
569 static void asus_led_cdev_set(struct led_classdev *led_cdev,
570 enum led_brightness value)
572 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
573 struct asus_laptop *asus = led->asus;
576 queue_work(asus->led_workqueue, &led->work);
579 static void asus_led_cdev_update(struct work_struct *work)
581 struct asus_led *led = container_of(work, struct asus_led, work);
582 struct asus_laptop *asus = led->asus;
584 asus_led_set(asus, led->method, led->wk);
587 static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev)
589 return led_cdev->brightness;
593 * Keyboard backlight (also a LED)
595 static int asus_kled_lvl(struct asus_laptop *asus)
597 unsigned long long kblv;
598 struct acpi_object_list params;
599 union acpi_object in_obj;
603 params.pointer = &in_obj;
604 in_obj.type = ACPI_TYPE_INTEGER;
605 in_obj.integer.value = 2;
607 rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET,
609 if (ACPI_FAILURE(rv)) {
610 pr_warn("Error reading kled level\n");
616 static int asus_kled_set(struct asus_laptop *asus, int kblv)
619 kblv = (1 << 7) | (kblv & 0x7F);
623 if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) {
624 pr_warn("Keyboard LED display write failed\n");
630 static void asus_kled_cdev_set(struct led_classdev *led_cdev,
631 enum led_brightness value)
633 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
634 struct asus_laptop *asus = led->asus;
637 queue_work(asus->led_workqueue, &led->work);
640 static void asus_kled_cdev_update(struct work_struct *work)
642 struct asus_led *led = container_of(work, struct asus_led, work);
643 struct asus_laptop *asus = led->asus;
645 asus_kled_set(asus, led->wk);
648 static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev)
650 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
651 struct asus_laptop *asus = led->asus;
653 return asus_kled_lvl(asus);
656 static void asus_led_exit(struct asus_laptop *asus)
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;
680 /* Ugly macro, need to fix that later */
681 static int asus_led_register(struct asus_laptop *asus,
682 struct asus_led *led,
683 const char *name, const char *method)
685 struct led_classdev *led_cdev = &led->led;
687 if (!method || acpi_check_handle(asus->handle, method, NULL))
688 return 0; /* Led not present */
691 led->method = method;
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);
701 static int asus_led_init(struct asus_laptop *asus)
706 * The Pegatron Lucid has no physical leds, but all methods are
707 * available in the DSDT...
709 if (asus->is_pega_lucid)
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.
718 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
719 if (!asus->led_workqueue)
722 if (asus->wled_type == TYPE_LED)
723 r = asus_led_register(asus, &asus->wled, "asus::wlan",
727 if (asus->bled_type == TYPE_LED)
728 r = asus_led_register(asus, &asus->bled, "asus::bluetooth",
732 r = asus_led_register(asus, &asus->mled, "asus::mail", METHOD_MLED);
735 r = asus_led_register(asus, &asus->tled, "asus::touchpad", METHOD_TLED);
738 r = asus_led_register(asus, &asus->rled, "asus::record", METHOD_RLED);
741 r = asus_led_register(asus, &asus->pled, "asus::phone", METHOD_PLED);
744 r = asus_led_register(asus, &asus->gled, "asus::gaming", METHOD_GLED);
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;
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);
770 static int asus_read_brightness(struct backlight_device *bd)
772 struct asus_laptop *asus = bl_get_data(bd);
773 unsigned long long value;
776 rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET,
778 if (ACPI_FAILURE(rv)) {
779 pr_warn("Error reading brightness\n");
786 static int asus_set_brightness(struct backlight_device *bd, int value)
788 struct asus_laptop *asus = bl_get_data(bd);
790 if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) {
791 pr_warn("Error changing brightness\n");
797 static int update_bl_status(struct backlight_device *bd)
799 int value = bd->props.brightness;
801 return asus_set_brightness(bd, value);
804 static const struct backlight_ops asusbl_ops = {
805 .get_brightness = asus_read_brightness,
806 .update_status = update_bl_status,
809 static int asus_backlight_notify(struct asus_laptop *asus)
811 struct backlight_device *bd = asus->backlight_device;
812 int old = bd->props.brightness;
814 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
819 static int asus_backlight_init(struct asus_laptop *asus)
821 struct backlight_device *bd;
822 struct backlight_properties props;
824 if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) ||
825 acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL))
828 memset(&props, 0, sizeof(struct backlight_properties));
829 props.max_brightness = 15;
830 props.type = BACKLIGHT_PLATFORM;
832 bd = backlight_device_register(ASUS_LAPTOP_FILE,
833 &asus->platform_device->dev, asus,
834 &asusbl_ops, &props);
836 pr_err("Could not register asus backlight device\n");
837 asus->backlight_device = NULL;
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);
848 static void asus_backlight_exit(struct asus_laptop *asus)
850 backlight_device_unregister(asus->backlight_device);
851 asus->backlight_device = NULL;
855 * Platform device handlers
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
863 static ssize_t infos_show(struct device *dev, struct device_attribute *attr,
866 struct asus_laptop *asus = dev_get_drvdata(dev);
868 unsigned long long temp;
869 char buf[16]; /* enough for all info */
873 * We use the easy way, we don't care of off and count,
874 * so we don't set eof to 1
877 len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n");
878 len += sprintf(page + len, "Model reference : %s\n", asus->name);
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.
885 rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp);
886 if (!ACPI_FAILURE(rv))
887 len += sprintf(page + len, "SFUN value : %#x\n",
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.
897 rv = acpi_evaluate_integer(asus->handle, "HWRS", NULL, &temp);
898 if (!ACPI_FAILURE(rv))
899 len += sprintf(page + len, "HWRS value : %#x\n",
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
908 rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp);
909 if (!ACPI_FAILURE(rv))
910 len += sprintf(page + len, "ASYM value : %#x\n",
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);
933 static DEVICE_ATTR_RO(infos);
935 static ssize_t sysfs_acpi_set(struct asus_laptop *asus,
936 const char *buf, size_t count,
941 rv = kstrtoint(buf, 0, &value);
945 if (write_acpi_int(asus->handle, method, value))
953 static ssize_t ledd_show(struct device *dev, struct device_attribute *attr,
956 struct asus_laptop *asus = dev_get_drvdata(dev);
958 return sprintf(buf, "0x%08x\n", asus->ledd_status);
961 static ssize_t ledd_store(struct device *dev, struct device_attribute *attr,
962 const char *buf, size_t count)
964 struct asus_laptop *asus = dev_get_drvdata(dev);
967 rv = kstrtoint(buf, 0, &value);
971 if (write_acpi_int(asus->handle, METHOD_LEDD, value)) {
972 pr_warn("LED display write failed\n");
976 asus->ledd_status = (u32) value;
979 static DEVICE_ATTR_RW(ledd);
984 static int asus_wireless_status(struct asus_laptop *asus, int mask)
986 unsigned long long status;
987 acpi_status rv = AE_OK;
989 if (!asus->have_rsts)
990 return (asus->wireless_status & mask) ? 1 : 0;
992 rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS,
994 if (ACPI_FAILURE(rv)) {
995 pr_warn("Error reading Wireless status\n");
998 return !!(status & mask);
1004 static int asus_wlan_set(struct asus_laptop *asus, int status)
1006 if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) {
1007 pr_warn("Error setting wlan status to %d\n", status);
1013 static ssize_t wlan_show(struct device *dev, struct device_attribute *attr,
1016 struct asus_laptop *asus = dev_get_drvdata(dev);
1018 return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS));
1021 static ssize_t wlan_store(struct device *dev, struct device_attribute *attr,
1022 const char *buf, size_t count)
1024 struct asus_laptop *asus = dev_get_drvdata(dev);
1026 return sysfs_acpi_set(asus, buf, count, METHOD_WLAN);
1028 static DEVICE_ATTR_RW(wlan);
1033 static int asus_bluetooth_set(struct asus_laptop *asus, int status)
1035 if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) {
1036 pr_warn("Error setting bluetooth status to %d\n", status);
1042 static ssize_t bluetooth_show(struct device *dev, struct device_attribute *attr,
1045 struct asus_laptop *asus = dev_get_drvdata(dev);
1047 return sprintf(buf, "%d\n", asus_wireless_status(asus, BT_RSTS));
1050 static ssize_t bluetooth_store(struct device *dev,
1051 struct device_attribute *attr, const char *buf,
1054 struct asus_laptop *asus = dev_get_drvdata(dev);
1056 return sysfs_acpi_set(asus, buf, count, METHOD_BLUETOOTH);
1058 static DEVICE_ATTR_RW(bluetooth);
1063 static int asus_wimax_set(struct asus_laptop *asus, int status)
1065 if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) {
1066 pr_warn("Error setting wimax status to %d\n", status);
1072 static ssize_t wimax_show(struct device *dev, struct device_attribute *attr,
1075 struct asus_laptop *asus = dev_get_drvdata(dev);
1077 return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS));
1080 static ssize_t wimax_store(struct device *dev, struct device_attribute *attr,
1081 const char *buf, size_t count)
1083 struct asus_laptop *asus = dev_get_drvdata(dev);
1085 return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX);
1087 static DEVICE_ATTR_RW(wimax);
1092 static int asus_wwan_set(struct asus_laptop *asus, int status)
1094 if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) {
1095 pr_warn("Error setting wwan status to %d\n", status);
1101 static ssize_t wwan_show(struct device *dev, struct device_attribute *attr,
1104 struct asus_laptop *asus = dev_get_drvdata(dev);
1106 return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS));
1109 static ssize_t wwan_store(struct device *dev, struct device_attribute *attr,
1110 const char *buf, size_t count)
1112 struct asus_laptop *asus = dev_get_drvdata(dev);
1114 return sysfs_acpi_set(asus, buf, count, METHOD_WWAN);
1116 static DEVICE_ATTR_RW(wwan);
1121 static void asus_set_display(struct asus_laptop *asus, int value)
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");
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
1136 static ssize_t display_store(struct device *dev, struct device_attribute *attr,
1137 const char *buf, size_t count)
1139 struct asus_laptop *asus = dev_get_drvdata(dev);
1142 rv = kstrtoint(buf, 0, &value);
1146 asus_set_display(asus, value);
1149 static DEVICE_ATTR_WO(display);
1154 static void asus_als_switch(struct asus_laptop *asus, int value)
1158 if (asus->is_pega_lucid) {
1159 ret = asus_pega_lucid_set(asus, PEGA_ALS, value);
1161 ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value);
1163 ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value);
1166 pr_warning("Error setting light sensor switch\n");
1168 asus->light_switch = value;
1171 static ssize_t ls_switch_show(struct device *dev, struct device_attribute *attr,
1174 struct asus_laptop *asus = dev_get_drvdata(dev);
1176 return sprintf(buf, "%d\n", asus->light_switch);
1179 static ssize_t ls_switch_store(struct device *dev,
1180 struct device_attribute *attr, const char *buf,
1183 struct asus_laptop *asus = dev_get_drvdata(dev);
1186 rv = kstrtoint(buf, 0, &value);
1190 asus_als_switch(asus, value ? 1 : 0);
1193 static DEVICE_ATTR_RW(ls_switch);
1195 static void asus_als_level(struct asus_laptop *asus, int value)
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;
1202 static ssize_t ls_level_show(struct device *dev, struct device_attribute *attr,
1205 struct asus_laptop *asus = dev_get_drvdata(dev);
1207 return sprintf(buf, "%d\n", asus->light_level);
1210 static ssize_t ls_level_store(struct device *dev, struct device_attribute *attr,
1211 const char *buf, size_t count)
1213 struct asus_laptop *asus = dev_get_drvdata(dev);
1216 rv = kstrtoint(buf, 0, &value);
1220 value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
1221 /* 0 <= value <= 15 */
1222 asus_als_level(asus, value);
1226 static DEVICE_ATTR_RW(ls_level);
1228 static int pega_int_read(struct asus_laptop *asus, int arg, int *result)
1230 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1231 int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg,
1234 union acpi_object *obj = buffer.pointer;
1235 if (obj && obj->type == ACPI_TYPE_INTEGER)
1236 *result = obj->integer.value;
1243 static ssize_t ls_value_show(struct device *dev, struct device_attribute *attr,
1246 struct asus_laptop *asus = dev_get_drvdata(dev);
1249 err = pega_int_read(asus, PEGA_READ_ALS_H, &hi);
1251 err = pega_int_read(asus, PEGA_READ_ALS_L, &lo);
1253 return sprintf(buf, "%d\n", 10 * hi + lo);
1256 static DEVICE_ATTR_RO(ls_value);
1261 static int asus_gps_status(struct asus_laptop *asus)
1263 unsigned long long status;
1266 rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS,
1268 if (ACPI_FAILURE(rv)) {
1269 pr_warn("Error reading GPS status\n");
1275 static int asus_gps_switch(struct asus_laptop *asus, int status)
1277 const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF;
1279 if (write_acpi_int(asus->handle, meth, 0x02))
1284 static ssize_t gps_show(struct device *dev, struct device_attribute *attr,
1287 struct asus_laptop *asus = dev_get_drvdata(dev);
1289 return sprintf(buf, "%d\n", asus_gps_status(asus));
1292 static ssize_t gps_store(struct device *dev, struct device_attribute *attr,
1293 const char *buf, size_t count)
1295 struct asus_laptop *asus = dev_get_drvdata(dev);
1299 rv = kstrtoint(buf, 0, &value);
1302 ret = asus_gps_switch(asus, !!value);
1305 rfkill_set_sw_state(asus->gps.rfkill, !value);
1308 static DEVICE_ATTR_RW(gps);
1313 static int asus_gps_rfkill_set(void *data, bool blocked)
1315 struct asus_laptop *asus = data;
1317 return asus_gps_switch(asus, !blocked);
1320 static const struct rfkill_ops asus_gps_rfkill_ops = {
1321 .set_block = asus_gps_rfkill_set,
1324 static int asus_rfkill_set(void *data, bool blocked)
1326 struct asus_rfkill *rfk = data;
1327 struct asus_laptop *asus = rfk->asus;
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);
1341 static const struct rfkill_ops asus_rfkill_ops = {
1342 .set_block = asus_rfkill_set,
1345 static void asus_rfkill_terminate(struct asus_rfkill *rfk)
1350 rfkill_unregister(rfk->rfkill);
1351 rfkill_destroy(rfk->rfkill);
1355 static void asus_rfkill_exit(struct asus_laptop *asus)
1357 asus_rfkill_terminate(&asus->wwan);
1358 asus_rfkill_terminate(&asus->bluetooth);
1359 asus_rfkill_terminate(&asus->wlan);
1360 asus_rfkill_terminate(&asus->gps);
1363 static 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)
1369 rfk->control_id = control_id;
1371 rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev,
1376 result = rfkill_register(rfk->rfkill);
1378 rfkill_destroy(rfk->rfkill);
1385 static int asus_rfkill_init(struct asus_laptop *asus)
1389 if (asus->is_pega_lucid)
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);
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,
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,
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,
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,
1435 asus_rfkill_exit(asus);
1440 static int pega_rfkill_set(void *data, bool blocked)
1442 struct asus_rfkill *rfk = data;
1444 int ret = asus_pega_lucid_set(rfk->asus, rfk->control_id, !blocked);
1448 static const struct rfkill_ops pega_rfkill_ops = {
1449 .set_block = pega_rfkill_set,
1452 static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
1453 const char *name, int controlid, int rfkill_type)
1455 return asus_rfkill_setup(asus, rfk, name, controlid, rfkill_type,
1459 static int pega_rfkill_init(struct asus_laptop *asus)
1463 if(!asus->is_pega_lucid)
1466 ret = pega_rfkill_setup(asus, &asus->wlan, "pega-wlan",
1467 PEGA_WLAN, RFKILL_TYPE_WLAN);
1471 ret = pega_rfkill_setup(asus, &asus->bluetooth, "pega-bt",
1472 PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH);
1476 ret = pega_rfkill_setup(asus, &asus->wwan, "pega-wwan",
1477 PEGA_WWAN, RFKILL_TYPE_WWAN);
1481 asus_rfkill_exit(asus);
1487 * Input device (i.e. hotkeys)
1489 static void asus_input_notify(struct asus_laptop *asus, int event)
1491 if (!asus->inputdev)
1493 if (!sparse_keymap_report_event(asus->inputdev, event, 1, true))
1494 pr_info("Unknown key %x pressed\n", event);
1497 static int asus_input_init(struct asus_laptop *asus)
1499 struct input_dev *input;
1502 input = input_allocate_device();
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;
1511 error = sparse_keymap_setup(input, asus_keymap, NULL);
1513 pr_err("Unable to setup input device keymap\n");
1516 error = input_register_device(input);
1518 pr_warn("Unable to register input device\n");
1519 goto err_free_keymap;
1522 asus->inputdev = input;
1526 sparse_keymap_free(input);
1528 input_free_device(input);
1532 static void asus_input_exit(struct asus_laptop *asus)
1534 if (asus->inputdev) {
1535 sparse_keymap_free(asus->inputdev);
1536 input_unregister_device(asus->inputdev);
1538 asus->inputdev = NULL;
1544 static void asus_acpi_notify(struct acpi_device *device, u32 event)
1546 struct asus_laptop *asus = acpi_driver_data(device);
1549 /* TODO Find a better way to handle events count. */
1550 count = asus->event_count[event % 128]++;
1551 acpi_bus_generate_netlink_event(asus->device->pnp.device_class,
1552 dev_name(&asus->device->dev), event,
1555 if (event >= ATKD_BRNUP_MIN && event <= ATKD_BRNUP_MAX)
1557 else if (event >= ATKD_BRNDOWN_MIN &&
1558 event <= ATKD_BRNDOWN_MAX)
1559 event = ATKD_BRNDOWN;
1561 /* Brightness events are special */
1562 if (event == ATKD_BRNDOWN || event == ATKD_BRNUP) {
1563 if (asus->backlight_device != NULL) {
1564 /* Update the backlight device. */
1565 asus_backlight_notify(asus);
1570 /* Accelerometer "coarse orientation change" event */
1571 if (asus->pega_accel_poll && event == 0xEA) {
1572 kobject_uevent(&asus->pega_accel_poll->input->dev.kobj,
1577 asus_input_notify(asus, event);
1580 static struct attribute *asus_attributes[] = {
1581 &dev_attr_infos.attr,
1582 &dev_attr_wlan.attr,
1583 &dev_attr_bluetooth.attr,
1584 &dev_attr_wimax.attr,
1585 &dev_attr_wwan.attr,
1586 &dev_attr_display.attr,
1587 &dev_attr_ledd.attr,
1588 &dev_attr_ls_value.attr,
1589 &dev_attr_ls_level.attr,
1590 &dev_attr_ls_switch.attr,
1595 static umode_t asus_sysfs_is_visible(struct kobject *kobj,
1596 struct attribute *attr,
1599 struct device *dev = container_of(kobj, struct device, kobj);
1600 struct platform_device *pdev = to_platform_device(dev);
1601 struct asus_laptop *asus = platform_get_drvdata(pdev);
1602 acpi_handle handle = asus->handle;
1605 if (asus->is_pega_lucid) {
1606 /* no ls_level interface on the Lucid */
1607 if (attr == &dev_attr_ls_switch.attr)
1609 else if (attr == &dev_attr_ls_level.attr)
1614 return supported ? attr->mode : 0;
1618 if (attr == &dev_attr_wlan.attr) {
1619 supported = !acpi_check_handle(handle, METHOD_WLAN, NULL);
1621 } else if (attr == &dev_attr_bluetooth.attr) {
1622 supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL);
1624 } else if (attr == &dev_attr_display.attr) {
1625 supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL);
1627 } else if (attr == &dev_attr_wimax.attr) {
1629 !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL);
1631 } else if (attr == &dev_attr_wwan.attr) {
1632 supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL);
1634 } else if (attr == &dev_attr_ledd.attr) {
1635 supported = !acpi_check_handle(handle, METHOD_LEDD, NULL);
1637 } else if (attr == &dev_attr_ls_switch.attr ||
1638 attr == &dev_attr_ls_level.attr) {
1639 supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) &&
1640 !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL);
1641 } else if (attr == &dev_attr_ls_value.attr) {
1642 supported = asus->is_pega_lucid;
1643 } else if (attr == &dev_attr_gps.attr) {
1644 supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) &&
1645 !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) &&
1646 !acpi_check_handle(handle, METHOD_GPS_STATUS, NULL);
1651 return supported ? attr->mode : 0;
1655 static const struct attribute_group asus_attr_group = {
1656 .is_visible = asus_sysfs_is_visible,
1657 .attrs = asus_attributes,
1660 static int asus_platform_init(struct asus_laptop *asus)
1664 asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, -1);
1665 if (!asus->platform_device)
1667 platform_set_drvdata(asus->platform_device, asus);
1669 result = platform_device_add(asus->platform_device);
1671 goto fail_platform_device;
1673 result = sysfs_create_group(&asus->platform_device->dev.kobj,
1681 platform_device_del(asus->platform_device);
1682 fail_platform_device:
1683 platform_device_put(asus->platform_device);
1687 static void asus_platform_exit(struct asus_laptop *asus)
1689 sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group);
1690 platform_device_unregister(asus->platform_device);
1693 static struct platform_driver platform_driver = {
1695 .name = ASUS_LAPTOP_FILE,
1700 * This function is used to initialize the context with right values. In this
1701 * method, we can make all the detection we want, and modify the asus_laptop
1704 static int asus_laptop_get_info(struct asus_laptop *asus)
1706 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1707 union acpi_object *model = NULL;
1708 unsigned long long bsts_result;
1709 char *string = NULL;
1713 * Get DSDT headers early enough to allow for differentiating between
1714 * models, but late enough to allow acpi_bus_register_driver() to fail
1715 * before doing anything ACPI-specific. Should we encounter a machine,
1716 * which needs special handling (i.e. its hotkey device has a different
1717 * HID), this bit will be moved.
1719 status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info);
1720 if (ACPI_FAILURE(status))
1721 pr_warn("Couldn't get the DSDT table header\n");
1723 /* We have to write 0 on init this far for all ASUS models */
1724 if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) {
1725 pr_err("Hotkey initialization failed\n");
1729 /* This needs to be called for some laptops to init properly */
1731 acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result);
1732 if (ACPI_FAILURE(status))
1733 pr_warn("Error calling BSTS\n");
1734 else if (bsts_result)
1735 pr_notice("BSTS called, 0x%02x returned\n",
1736 (uint) bsts_result);
1739 if (write_acpi_int(asus->handle, "CWAP", wapf))
1740 pr_err("Error calling CWAP(%d)\n", wapf);
1742 * Try to match the object returned by INIT to the specific model.
1743 * Handle every possible object (or the lack of thereof) the DSDT
1744 * writers might throw at us. When in trouble, we pass NULL to
1745 * asus_model_match() and try something completely different.
1747 if (buffer.pointer) {
1748 model = buffer.pointer;
1749 switch (model->type) {
1750 case ACPI_TYPE_STRING:
1751 string = model->string.pointer;
1753 case ACPI_TYPE_BUFFER:
1754 string = model->buffer.pointer;
1761 asus->name = kstrdup(string, GFP_KERNEL);
1763 kfree(buffer.pointer);
1768 pr_notice(" %s model detected\n", string);
1770 if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL))
1771 asus->have_rsts = true;
1778 static int asus_acpi_init(struct asus_laptop *asus)
1782 result = acpi_bus_get_status(asus->device);
1785 if (!asus->device->status.present) {
1786 pr_err("Hotkey device not present, aborting\n");
1790 result = asus_laptop_get_info(asus);
1794 if (!strcmp(bled_type, "led"))
1795 asus->bled_type = TYPE_LED;
1796 else if (!strcmp(bled_type, "rfkill"))
1797 asus->bled_type = TYPE_RFKILL;
1799 if (!strcmp(wled_type, "led"))
1800 asus->wled_type = TYPE_LED;
1801 else if (!strcmp(wled_type, "rfkill"))
1802 asus->wled_type = TYPE_RFKILL;
1804 if (bluetooth_status >= 0)
1805 asus_bluetooth_set(asus, !!bluetooth_status);
1807 if (wlan_status >= 0)
1808 asus_wlan_set(asus, !!wlan_status);
1810 if (wimax_status >= 0)
1811 asus_wimax_set(asus, !!wimax_status);
1813 if (wwan_status >= 0)
1814 asus_wwan_set(asus, !!wwan_status);
1816 /* Keyboard Backlight is on by default */
1817 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL))
1818 asus_kled_set(asus, 1);
1820 /* LED display is off by default */
1821 asus->ledd_status = 0xFFF;
1823 /* Set initial values of light sensor and level */
1824 asus->light_switch = !!als_status;
1825 asus->light_level = 5; /* level 5 for sensor sensitivity */
1827 if (asus->is_pega_lucid) {
1828 asus_als_switch(asus, asus->light_switch);
1829 } else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) &&
1830 !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) {
1831 asus_als_switch(asus, asus->light_switch);
1832 asus_als_level(asus, asus->light_level);
1838 static void asus_dmi_check(void)
1842 model = dmi_get_system_info(DMI_PRODUCT_NAME);
1846 /* On L1400B WLED control the sound card, don't mess with it ... */
1847 if (strncmp(model, "L1400B", 6) == 0) {
1852 static bool asus_device_present;
1854 static int asus_acpi_add(struct acpi_device *device)
1856 struct asus_laptop *asus;
1859 pr_notice("Asus Laptop Support version %s\n",
1860 ASUS_LAPTOP_VERSION);
1861 asus = kzalloc(sizeof(struct asus_laptop), GFP_KERNEL);
1864 asus->handle = device->handle;
1865 strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME);
1866 strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS);
1867 device->driver_data = asus;
1868 asus->device = device;
1872 result = asus_acpi_init(asus);
1877 * Need platform type detection first, then the platform
1878 * device. It is used as a parent for the sub-devices below.
1880 asus->is_pega_lucid = asus_check_pega_lucid(asus);
1881 result = asus_platform_init(asus);
1885 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1886 result = asus_backlight_init(asus);
1888 goto fail_backlight;
1891 result = asus_input_init(asus);
1895 result = asus_led_init(asus);
1899 result = asus_rfkill_init(asus);
1900 if (result && result != -ENODEV)
1903 result = pega_accel_init(asus);
1904 if (result && result != -ENODEV)
1905 goto fail_pega_accel;
1907 result = pega_rfkill_init(asus);
1908 if (result && result != -ENODEV)
1909 goto fail_pega_rfkill;
1911 asus_device_present = true;
1915 pega_accel_exit(asus);
1917 asus_rfkill_exit(asus);
1919 asus_led_exit(asus);
1921 asus_input_exit(asus);
1923 asus_backlight_exit(asus);
1925 asus_platform_exit(asus);
1932 static int asus_acpi_remove(struct acpi_device *device)
1934 struct asus_laptop *asus = acpi_driver_data(device);
1936 asus_backlight_exit(asus);
1937 asus_rfkill_exit(asus);
1938 asus_led_exit(asus);
1939 asus_input_exit(asus);
1940 pega_accel_exit(asus);
1941 asus_platform_exit(asus);
1948 static const struct acpi_device_id asus_device_ids[] = {
1953 MODULE_DEVICE_TABLE(acpi, asus_device_ids);
1955 static struct acpi_driver asus_acpi_driver = {
1956 .name = ASUS_LAPTOP_NAME,
1957 .class = ASUS_LAPTOP_CLASS,
1958 .owner = THIS_MODULE,
1959 .ids = asus_device_ids,
1960 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1962 .add = asus_acpi_add,
1963 .remove = asus_acpi_remove,
1964 .notify = asus_acpi_notify,
1968 static int __init asus_laptop_init(void)
1972 result = platform_driver_register(&platform_driver);
1976 result = acpi_bus_register_driver(&asus_acpi_driver);
1978 goto fail_acpi_driver;
1979 if (!asus_device_present) {
1981 goto fail_no_device;
1986 acpi_bus_unregister_driver(&asus_acpi_driver);
1988 platform_driver_unregister(&platform_driver);
1992 static void __exit asus_laptop_exit(void)
1994 acpi_bus_unregister_driver(&asus_acpi_driver);
1995 platform_driver_unregister(&platform_driver);
1998 module_init(asus_laptop_init);
1999 module_exit(asus_laptop_exit);