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 <acpi/acpi_drivers.h>
57 #include <acpi/acpi_bus.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_BR_UP 0x10 /* (event & ~ATKD_BR_UP) = brightness level */
132 #define ATKD_BR_DOWN 0x20 /* (event & ~ATKD_BR_DOWN) = britghness level */
133 #define ATKD_BR_MIN ATKD_BR_UP
134 #define ATKD_BR_MAX (ATKD_BR_DOWN | 0xF) /* 0x2f */
135 #define ATKD_LCD_ON 0x33
136 #define ATKD_LCD_OFF 0x34
139 * Known bits returned by \_SB.ATKD.HWRS
142 #define BT_HWRS 0x100
145 * Flags for hotk status
146 * WL_ON and BT_ON are also used for wireless_status()
148 #define WL_RSTS 0x01 /* internal Wifi */
149 #define BT_RSTS 0x02 /* internal Bluetooth */
150 #define WM_RSTS 0x08 /* internal wimax */
151 #define WW_RSTS 0x20 /* internal wwan */
153 /* WLED and BLED type */
154 #define TYPE_UNKNOWN 0
156 #define TYPE_RFKILL 2
159 #define METHOD_MLED "MLED"
160 #define METHOD_TLED "TLED"
161 #define METHOD_RLED "RLED" /* W1JC */
162 #define METHOD_PLED "PLED" /* A7J */
163 #define METHOD_GLED "GLED" /* G1, G2 (probably) */
166 #define METHOD_LEDD "SLCM"
170 * WLED and BLED are not handled like other XLED, because in some dsdt
171 * they also control the WLAN/Bluetooth device.
173 #define METHOD_WLAN "WLED"
174 #define METHOD_BLUETOOTH "BLED"
177 #define METHOD_WWAN "GSMC"
178 #define METHOD_WIMAX "WMXC"
180 #define METHOD_WL_STATUS "RSTS"
183 #define METHOD_BRIGHTNESS_SET "SPLV"
184 #define METHOD_BRIGHTNESS_GET "GPLV"
187 #define METHOD_SWITCH_DISPLAY "SDSP"
189 #define METHOD_ALS_CONTROL "ALSC" /* Z71A Z71V */
190 #define METHOD_ALS_LEVEL "ALSL" /* Z71A Z71V */
193 /* R2H use different handle for GPS on/off */
194 #define METHOD_GPS_ON "SDON"
195 #define METHOD_GPS_OFF "SDOF"
196 #define METHOD_GPS_STATUS "GPST"
199 #define METHOD_KBD_LIGHT_SET "SLKB"
200 #define METHOD_KBD_LIGHT_GET "GLKB"
202 /* For Pegatron Lucid tablet */
203 #define DEVICE_NAME_PEGA "Lucid"
205 #define METHOD_PEGA_ENABLE "ENPR"
206 #define METHOD_PEGA_DISABLE "DAPR"
207 #define PEGA_WLAN 0x00
208 #define PEGA_BLUETOOTH 0x01
209 #define PEGA_WWAN 0x02
210 #define PEGA_ALS 0x04
211 #define PEGA_ALS_POWER 0x05
213 #define METHOD_PEGA_READ "RDLN"
214 #define PEGA_READ_ALS_H 0x02
215 #define PEGA_READ_ALS_L 0x03
217 #define PEGA_ACCEL_NAME "pega_accel"
218 #define PEGA_ACCEL_DESC "Pegatron Lucid Tablet Accelerometer"
219 #define METHOD_XLRX "XLRX"
220 #define METHOD_XLRY "XLRY"
221 #define METHOD_XLRZ "XLRZ"
222 #define PEGA_ACC_CLAMP 512 /* 1G accel is reported as ~256, so clamp to 2G */
223 #define PEGA_ACC_RETRIES 3
226 * Define a specific led structure to keep the main structure clean
230 struct work_struct work;
231 struct led_classdev led;
232 struct asus_laptop *asus;
237 * Same thing for rfkill
240 /* type of control. Maps to PEGA_* values or *_RSTS */
242 struct rfkill *rfkill;
243 struct asus_laptop *asus;
247 * This is the main structure, we can use it to store anything interesting
248 * about the hotk device
251 char *name; /* laptop name */
253 struct acpi_table_header *dsdt_info;
254 struct platform_device *platform_device;
255 struct acpi_device *device; /* the device we are in */
256 struct backlight_device *backlight_device;
258 struct input_dev *inputdev;
259 struct key_entry *keymap;
260 struct input_polled_dev *pega_accel_poll;
262 struct asus_led wled;
263 struct asus_led bled;
264 struct asus_led mled;
265 struct asus_led tled;
266 struct asus_led rled;
267 struct asus_led pled;
268 struct asus_led gled;
269 struct asus_led kled;
270 struct workqueue_struct *led_workqueue;
282 struct asus_rfkill wlan;
283 struct asus_rfkill bluetooth;
284 struct asus_rfkill wwan;
285 struct asus_rfkill wimax;
286 struct asus_rfkill gps;
288 acpi_handle handle; /* the handle of the hotk device */
289 u32 ledd_status; /* status of the LED display */
290 u8 light_level; /* light sensor level */
291 u8 light_switch; /* light sensor switch value */
292 u16 event_count[128]; /* count for each event TODO make this better */
295 static const struct key_entry asus_keymap[] = {
296 /* Lenovo SL Specific keycodes */
297 {KE_KEY, 0x02, { KEY_SCREENLOCK } },
298 {KE_KEY, 0x05, { KEY_WLAN } },
299 {KE_KEY, 0x08, { KEY_F13 } },
300 {KE_KEY, 0x09, { KEY_PROG2 } }, /* Dock */
301 {KE_KEY, 0x17, { KEY_ZOOM } },
302 {KE_KEY, 0x1f, { KEY_BATTERY } },
303 /* End of Lenovo SL Specific keycodes */
304 {KE_KEY, 0x30, { KEY_VOLUMEUP } },
305 {KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
306 {KE_KEY, 0x32, { KEY_MUTE } },
307 {KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
308 {KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
309 {KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
310 {KE_KEY, 0x41, { KEY_NEXTSONG } },
311 {KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
312 {KE_KEY, 0x45, { KEY_PLAYPAUSE } },
313 {KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
314 {KE_KEY, 0x50, { KEY_EMAIL } },
315 {KE_KEY, 0x51, { KEY_WWW } },
316 {KE_KEY, 0x55, { KEY_CALC } },
317 {KE_IGNORE, 0x57, }, /* Battery mode */
318 {KE_IGNORE, 0x58, }, /* AC mode */
319 {KE_KEY, 0x5C, { KEY_SCREENLOCK } }, /* Screenlock */
320 {KE_KEY, 0x5D, { KEY_WLAN } }, /* WLAN Toggle */
321 {KE_KEY, 0x5E, { KEY_WLAN } }, /* WLAN Enable */
322 {KE_KEY, 0x5F, { KEY_WLAN } }, /* WLAN Disable */
323 {KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
324 {KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
325 {KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
326 {KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
327 {KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
328 {KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
329 {KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
330 {KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
331 {KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad */
332 {KE_KEY, 0x6C, { KEY_SLEEP } }, /* Suspend */
333 {KE_KEY, 0x6D, { KEY_SLEEP } }, /* Hibernate */
334 {KE_IGNORE, 0x6E, }, /* Low Battery notification */
335 {KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
336 {KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
337 {KE_KEY, 0x82, { KEY_CAMERA } },
338 {KE_KEY, 0x88, { KEY_RFKILL } }, /* Radio Toggle Key */
339 {KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
340 {KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
341 {KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
342 {KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
343 {KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
344 {KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
345 {KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
346 {KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
347 {KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
348 {KE_KEY, 0x95, { KEY_MEDIA } },
349 {KE_KEY, 0x99, { KEY_PHONE } },
350 {KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
351 {KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
352 {KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
353 {KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
354 {KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
355 {KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
356 {KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
357 {KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
358 {KE_KEY, 0xB5, { KEY_CALC } },
359 {KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
360 {KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
366 * This function evaluates an ACPI method, given an int as parameter, the
367 * method is searched within the scope of the handle, can be NULL. The output
368 * of the method is written is output, which can also be NULL
370 * returns 0 if write is successful, -1 else.
372 static int write_acpi_int_ret(acpi_handle handle, const char *method, int val,
373 struct acpi_buffer *output)
375 struct acpi_object_list params; /* list of input parameters (an int) */
376 union acpi_object in_obj; /* the only param we use */
383 params.pointer = &in_obj;
384 in_obj.type = ACPI_TYPE_INTEGER;
385 in_obj.integer.value = val;
387 status = acpi_evaluate_object(handle, (char *)method, ¶ms, output);
394 static int write_acpi_int(acpi_handle handle, const char *method, int val)
396 return write_acpi_int_ret(handle, method, val, NULL);
399 static int acpi_check_handle(acpi_handle handle, const char *method,
408 status = acpi_get_handle(handle, (char *)method,
413 status = acpi_get_handle(handle, (char *)method,
417 if (status != AE_OK) {
419 pr_warn("Error finding %s\n", method);
425 static bool asus_check_pega_lucid(struct asus_laptop *asus)
427 return !strcmp(asus->name, DEVICE_NAME_PEGA) &&
428 !acpi_check_handle(asus->handle, METHOD_PEGA_ENABLE, NULL) &&
429 !acpi_check_handle(asus->handle, METHOD_PEGA_DISABLE, NULL) &&
430 !acpi_check_handle(asus->handle, METHOD_PEGA_READ, NULL);
433 static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable)
435 char *method = enable ? METHOD_PEGA_ENABLE : METHOD_PEGA_DISABLE;
436 return write_acpi_int(asus->handle, method, unit);
439 static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method)
442 unsigned long long val;
443 for (i = 0; i < PEGA_ACC_RETRIES; i++) {
444 acpi_evaluate_integer(asus->handle, method, NULL, &val);
446 /* The output is noisy. From reading the ASL
447 * dissassembly, timeout errors are returned with 1's
448 * in the high word, and the lack of locking around
449 * thei hi/lo byte reads means that a transition
450 * between (for example) -1 and 0 could be read as
451 * 0xff00 or 0x00ff. */
452 delta = abs(curr - (short)val);
453 if (delta < 128 && !(val & ~0xffff))
456 return clamp_val((short)val, -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP);
459 static void pega_accel_poll(struct input_polled_dev *ipd)
461 struct device *parent = ipd->input->dev.parent;
462 struct asus_laptop *asus = dev_get_drvdata(parent);
464 /* In some cases, the very first call to poll causes a
465 * recursive fault under the polldev worker. This is
466 * apparently related to very early userspace access to the
467 * device, and perhaps a firmware bug. Fake the first report. */
468 if (!asus->pega_acc_live) {
469 asus->pega_acc_live = true;
470 input_report_abs(ipd->input, ABS_X, 0);
471 input_report_abs(ipd->input, ABS_Y, 0);
472 input_report_abs(ipd->input, ABS_Z, 0);
473 input_sync(ipd->input);
477 asus->pega_acc_x = pega_acc_axis(asus, asus->pega_acc_x, METHOD_XLRX);
478 asus->pega_acc_y = pega_acc_axis(asus, asus->pega_acc_y, METHOD_XLRY);
479 asus->pega_acc_z = pega_acc_axis(asus, asus->pega_acc_z, METHOD_XLRZ);
481 /* Note transform, convert to "right/up/out" in the native
482 * landscape orientation (i.e. the vector is the direction of
483 * "real up" in the device's cartiesian coordinates). */
484 input_report_abs(ipd->input, ABS_X, -asus->pega_acc_x);
485 input_report_abs(ipd->input, ABS_Y, -asus->pega_acc_y);
486 input_report_abs(ipd->input, ABS_Z, asus->pega_acc_z);
487 input_sync(ipd->input);
490 static void pega_accel_exit(struct asus_laptop *asus)
492 if (asus->pega_accel_poll) {
493 input_unregister_polled_device(asus->pega_accel_poll);
494 input_free_polled_device(asus->pega_accel_poll);
496 asus->pega_accel_poll = NULL;
499 static int pega_accel_init(struct asus_laptop *asus)
502 struct input_polled_dev *ipd;
504 if (!asus->is_pega_lucid)
507 if (acpi_check_handle(asus->handle, METHOD_XLRX, NULL) ||
508 acpi_check_handle(asus->handle, METHOD_XLRY, NULL) ||
509 acpi_check_handle(asus->handle, METHOD_XLRZ, NULL))
512 ipd = input_allocate_polled_device();
516 ipd->poll = pega_accel_poll;
517 ipd->poll_interval = 125;
518 ipd->poll_interval_min = 50;
519 ipd->poll_interval_max = 2000;
521 ipd->input->name = PEGA_ACCEL_DESC;
522 ipd->input->phys = PEGA_ACCEL_NAME "/input0";
523 ipd->input->dev.parent = &asus->platform_device->dev;
524 ipd->input->id.bustype = BUS_HOST;
526 set_bit(EV_ABS, ipd->input->evbit);
527 input_set_abs_params(ipd->input, ABS_X,
528 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
529 input_set_abs_params(ipd->input, ABS_Y,
530 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
531 input_set_abs_params(ipd->input, ABS_Z,
532 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
534 err = input_register_polled_device(ipd);
538 asus->pega_accel_poll = ipd;
542 input_free_polled_device(ipd);
546 /* Generic LED function */
547 static int asus_led_set(struct asus_laptop *asus, const char *method,
550 if (!strcmp(method, METHOD_MLED))
552 else if (!strcmp(method, METHOD_GLED))
557 return write_acpi_int(asus->handle, method, value);
563 /* /sys/class/led handlers */
564 static void asus_led_cdev_set(struct led_classdev *led_cdev,
565 enum led_brightness value)
567 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
568 struct asus_laptop *asus = led->asus;
571 queue_work(asus->led_workqueue, &led->work);
574 static void asus_led_cdev_update(struct work_struct *work)
576 struct asus_led *led = container_of(work, struct asus_led, work);
577 struct asus_laptop *asus = led->asus;
579 asus_led_set(asus, led->method, led->wk);
582 static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev)
584 return led_cdev->brightness;
588 * Keyboard backlight (also a LED)
590 static int asus_kled_lvl(struct asus_laptop *asus)
592 unsigned long long kblv;
593 struct acpi_object_list params;
594 union acpi_object in_obj;
598 params.pointer = &in_obj;
599 in_obj.type = ACPI_TYPE_INTEGER;
600 in_obj.integer.value = 2;
602 rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET,
604 if (ACPI_FAILURE(rv)) {
605 pr_warn("Error reading kled level\n");
611 static int asus_kled_set(struct asus_laptop *asus, int kblv)
614 kblv = (1 << 7) | (kblv & 0x7F);
618 if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) {
619 pr_warn("Keyboard LED display write failed\n");
625 static void asus_kled_cdev_set(struct led_classdev *led_cdev,
626 enum led_brightness value)
628 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
629 struct asus_laptop *asus = led->asus;
632 queue_work(asus->led_workqueue, &led->work);
635 static void asus_kled_cdev_update(struct work_struct *work)
637 struct asus_led *led = container_of(work, struct asus_led, work);
638 struct asus_laptop *asus = led->asus;
640 asus_kled_set(asus, led->wk);
643 static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev)
645 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
646 struct asus_laptop *asus = led->asus;
648 return asus_kled_lvl(asus);
651 static void asus_led_exit(struct asus_laptop *asus)
653 if (!IS_ERR_OR_NULL(asus->wled.led.dev))
654 led_classdev_unregister(&asus->wled.led);
655 if (!IS_ERR_OR_NULL(asus->bled.led.dev))
656 led_classdev_unregister(&asus->bled.led);
657 if (!IS_ERR_OR_NULL(asus->mled.led.dev))
658 led_classdev_unregister(&asus->mled.led);
659 if (!IS_ERR_OR_NULL(asus->tled.led.dev))
660 led_classdev_unregister(&asus->tled.led);
661 if (!IS_ERR_OR_NULL(asus->pled.led.dev))
662 led_classdev_unregister(&asus->pled.led);
663 if (!IS_ERR_OR_NULL(asus->rled.led.dev))
664 led_classdev_unregister(&asus->rled.led);
665 if (!IS_ERR_OR_NULL(asus->gled.led.dev))
666 led_classdev_unregister(&asus->gled.led);
667 if (!IS_ERR_OR_NULL(asus->kled.led.dev))
668 led_classdev_unregister(&asus->kled.led);
669 if (asus->led_workqueue) {
670 destroy_workqueue(asus->led_workqueue);
671 asus->led_workqueue = NULL;
675 /* Ugly macro, need to fix that later */
676 static int asus_led_register(struct asus_laptop *asus,
677 struct asus_led *led,
678 const char *name, const char *method)
680 struct led_classdev *led_cdev = &led->led;
682 if (!method || acpi_check_handle(asus->handle, method, NULL))
683 return 0; /* Led not present */
686 led->method = method;
688 INIT_WORK(&led->work, asus_led_cdev_update);
689 led_cdev->name = name;
690 led_cdev->brightness_set = asus_led_cdev_set;
691 led_cdev->brightness_get = asus_led_cdev_get;
692 led_cdev->max_brightness = 1;
693 return led_classdev_register(&asus->platform_device->dev, led_cdev);
696 static int asus_led_init(struct asus_laptop *asus)
701 * The Pegatron Lucid has no physical leds, but all methods are
702 * available in the DSDT...
704 if (asus->is_pega_lucid)
708 * Functions that actually update the LED's are called from a
709 * workqueue. By doing this as separate work rather than when the LED
710 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
711 * potentially bad time, such as a timer interrupt.
713 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
714 if (!asus->led_workqueue)
717 if (asus->wled_type == TYPE_LED)
718 r = asus_led_register(asus, &asus->wled, "asus::wlan",
722 if (asus->bled_type == TYPE_LED)
723 r = asus_led_register(asus, &asus->bled, "asus::bluetooth",
727 r = asus_led_register(asus, &asus->mled, "asus::mail", METHOD_MLED);
730 r = asus_led_register(asus, &asus->tled, "asus::touchpad", METHOD_TLED);
733 r = asus_led_register(asus, &asus->rled, "asus::record", METHOD_RLED);
736 r = asus_led_register(asus, &asus->pled, "asus::phone", METHOD_PLED);
739 r = asus_led_register(asus, &asus->gled, "asus::gaming", METHOD_GLED);
742 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL) &&
743 !acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL)) {
744 struct asus_led *led = &asus->kled;
745 struct led_classdev *cdev = &led->led;
749 INIT_WORK(&led->work, asus_kled_cdev_update);
750 cdev->name = "asus::kbd_backlight";
751 cdev->brightness_set = asus_kled_cdev_set;
752 cdev->brightness_get = asus_kled_cdev_get;
753 cdev->max_brightness = 3;
754 r = led_classdev_register(&asus->platform_device->dev, cdev);
765 static int asus_read_brightness(struct backlight_device *bd)
767 struct asus_laptop *asus = bl_get_data(bd);
768 unsigned long long value;
769 acpi_status rv = AE_OK;
771 rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET,
773 if (ACPI_FAILURE(rv))
774 pr_warn("Error reading brightness\n");
779 static int asus_set_brightness(struct backlight_device *bd, int value)
781 struct asus_laptop *asus = bl_get_data(bd);
783 if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) {
784 pr_warn("Error changing brightness\n");
790 static int update_bl_status(struct backlight_device *bd)
792 int value = bd->props.brightness;
794 return asus_set_brightness(bd, value);
797 static const struct backlight_ops asusbl_ops = {
798 .get_brightness = asus_read_brightness,
799 .update_status = update_bl_status,
802 static int asus_backlight_notify(struct asus_laptop *asus)
804 struct backlight_device *bd = asus->backlight_device;
805 int old = bd->props.brightness;
807 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
812 static int asus_backlight_init(struct asus_laptop *asus)
814 struct backlight_device *bd;
815 struct backlight_properties props;
817 if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) ||
818 acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL))
821 memset(&props, 0, sizeof(struct backlight_properties));
822 props.max_brightness = 15;
823 props.type = BACKLIGHT_PLATFORM;
825 bd = backlight_device_register(ASUS_LAPTOP_FILE,
826 &asus->platform_device->dev, asus,
827 &asusbl_ops, &props);
829 pr_err("Could not register asus backlight device\n");
830 asus->backlight_device = NULL;
834 asus->backlight_device = bd;
835 bd->props.brightness = asus_read_brightness(bd);
836 bd->props.power = FB_BLANK_UNBLANK;
837 backlight_update_status(bd);
841 static void asus_backlight_exit(struct asus_laptop *asus)
843 if (asus->backlight_device)
844 backlight_device_unregister(asus->backlight_device);
845 asus->backlight_device = NULL;
849 * Platform device handlers
853 * We write our info in page, we begin at offset off and cannot write more
854 * than count bytes. We set eof to 1 if we handle those 2 values. We return the
855 * number of bytes written in page
857 static ssize_t show_infos(struct device *dev,
858 struct device_attribute *attr, char *page)
860 struct asus_laptop *asus = dev_get_drvdata(dev);
862 unsigned long long temp;
863 char buf[16]; /* enough for all info */
864 acpi_status rv = AE_OK;
867 * We use the easy way, we don't care of off and count,
868 * so we don't set eof to 1
871 len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n");
872 len += sprintf(page + len, "Model reference : %s\n", asus->name);
874 * The SFUN method probably allows the original driver to get the list
875 * of features supported by a given model. For now, 0x0100 or 0x0800
876 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
877 * The significance of others is yet to be found.
879 rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp);
880 if (!ACPI_FAILURE(rv))
881 len += sprintf(page + len, "SFUN value : %#x\n",
884 * The HWRS method return informations about the hardware.
885 * 0x80 bit is for WLAN, 0x100 for Bluetooth.
886 * 0x40 for WWAN, 0x10 for WIMAX.
887 * The significance of others is yet to be found.
888 * We don't currently use this for device detection, and it
889 * takes several seconds to run on some systems.
891 rv = acpi_evaluate_integer(asus->handle, "HWRS", NULL, &temp);
892 if (!ACPI_FAILURE(rv))
893 len += sprintf(page + len, "HWRS value : %#x\n",
896 * Another value for userspace: the ASYM method returns 0x02 for
897 * battery low and 0x04 for battery critical, its readings tend to be
898 * more accurate than those provided by _BST.
899 * Note: since not all the laptops provide this method, errors are
902 rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp);
903 if (!ACPI_FAILURE(rv))
904 len += sprintf(page + len, "ASYM value : %#x\n",
906 if (asus->dsdt_info) {
907 snprintf(buf, 16, "%d", asus->dsdt_info->length);
908 len += sprintf(page + len, "DSDT length : %s\n", buf);
909 snprintf(buf, 16, "%d", asus->dsdt_info->checksum);
910 len += sprintf(page + len, "DSDT checksum : %s\n", buf);
911 snprintf(buf, 16, "%d", asus->dsdt_info->revision);
912 len += sprintf(page + len, "DSDT revision : %s\n", buf);
913 snprintf(buf, 7, "%s", asus->dsdt_info->oem_id);
914 len += sprintf(page + len, "OEM id : %s\n", buf);
915 snprintf(buf, 9, "%s", asus->dsdt_info->oem_table_id);
916 len += sprintf(page + len, "OEM table id : %s\n", buf);
917 snprintf(buf, 16, "%x", asus->dsdt_info->oem_revision);
918 len += sprintf(page + len, "OEM revision : 0x%s\n", buf);
919 snprintf(buf, 5, "%s", asus->dsdt_info->asl_compiler_id);
920 len += sprintf(page + len, "ASL comp vendor id : %s\n", buf);
921 snprintf(buf, 16, "%x", asus->dsdt_info->asl_compiler_revision);
922 len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf);
928 static int parse_arg(const char *buf, unsigned long count, int *val)
934 if (sscanf(buf, "%i", val) != 1)
939 static ssize_t sysfs_acpi_set(struct asus_laptop *asus,
940 const char *buf, size_t count,
946 rv = parse_arg(buf, count, &value);
950 if (write_acpi_int(asus->handle, method, value))
958 static ssize_t show_ledd(struct device *dev,
959 struct device_attribute *attr, char *buf)
961 struct asus_laptop *asus = dev_get_drvdata(dev);
963 return sprintf(buf, "0x%08x\n", asus->ledd_status);
966 static ssize_t store_ledd(struct device *dev, struct device_attribute *attr,
967 const char *buf, size_t count)
969 struct asus_laptop *asus = dev_get_drvdata(dev);
972 rv = parse_arg(buf, count, &value);
974 if (write_acpi_int(asus->handle, METHOD_LEDD, value)) {
975 pr_warn("LED display write failed\n");
978 asus->ledd_status = (u32) value;
986 static int asus_wireless_status(struct asus_laptop *asus, int mask)
988 unsigned long long status;
989 acpi_status rv = AE_OK;
991 if (!asus->have_rsts)
992 return (asus->wireless_status & mask) ? 1 : 0;
994 rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS,
996 if (ACPI_FAILURE(rv)) {
997 pr_warn("Error reading Wireless status\n");
1000 return !!(status & mask);
1006 static int asus_wlan_set(struct asus_laptop *asus, int status)
1008 if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) {
1009 pr_warn("Error setting wlan status to %d\n", status);
1015 static ssize_t show_wlan(struct device *dev,
1016 struct device_attribute *attr, char *buf)
1018 struct asus_laptop *asus = dev_get_drvdata(dev);
1020 return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS));
1023 static ssize_t store_wlan(struct device *dev, struct device_attribute *attr,
1024 const char *buf, size_t count)
1026 struct asus_laptop *asus = dev_get_drvdata(dev);
1028 return sysfs_acpi_set(asus, buf, count, METHOD_WLAN);
1034 static int asus_bluetooth_set(struct asus_laptop *asus, int status)
1036 if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) {
1037 pr_warn("Error setting bluetooth status to %d\n", status);
1043 static ssize_t show_bluetooth(struct device *dev,
1044 struct device_attribute *attr, char *buf)
1046 struct asus_laptop *asus = dev_get_drvdata(dev);
1048 return sprintf(buf, "%d\n", asus_wireless_status(asus, BT_RSTS));
1051 static ssize_t store_bluetooth(struct device *dev,
1052 struct device_attribute *attr, const char *buf,
1055 struct asus_laptop *asus = dev_get_drvdata(dev);
1057 return sysfs_acpi_set(asus, buf, count, METHOD_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 show_wimax(struct device *dev,
1073 struct device_attribute *attr, char *buf)
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 store_wimax(struct device *dev,
1081 struct device_attribute *attr, const char *buf,
1084 struct asus_laptop *asus = dev_get_drvdata(dev);
1086 return sysfs_acpi_set(asus, buf, count, METHOD_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 show_wwan(struct device *dev,
1102 struct device_attribute *attr, char *buf)
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 store_wwan(struct device *dev,
1110 struct device_attribute *attr, const char *buf,
1113 struct asus_laptop *asus = dev_get_drvdata(dev);
1115 return sysfs_acpi_set(asus, buf, count, METHOD_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 store_disp(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 = parse_arg(buf, count, &value);
1144 asus_set_display(asus, value);
1151 static void asus_als_switch(struct asus_laptop *asus, int value)
1155 if (asus->is_pega_lucid) {
1156 ret = asus_pega_lucid_set(asus, PEGA_ALS, value);
1158 ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value);
1160 ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value);
1163 pr_warning("Error setting light sensor switch\n");
1165 asus->light_switch = value;
1168 static ssize_t show_lssw(struct device *dev,
1169 struct device_attribute *attr, char *buf)
1171 struct asus_laptop *asus = dev_get_drvdata(dev);
1173 return sprintf(buf, "%d\n", asus->light_switch);
1176 static ssize_t store_lssw(struct device *dev, struct device_attribute *attr,
1177 const char *buf, size_t count)
1179 struct asus_laptop *asus = dev_get_drvdata(dev);
1182 rv = parse_arg(buf, count, &value);
1184 asus_als_switch(asus, value ? 1 : 0);
1189 static void asus_als_level(struct asus_laptop *asus, int value)
1191 if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value))
1192 pr_warn("Error setting light sensor level\n");
1193 asus->light_level = value;
1196 static ssize_t show_lslvl(struct device *dev,
1197 struct device_attribute *attr, char *buf)
1199 struct asus_laptop *asus = dev_get_drvdata(dev);
1201 return sprintf(buf, "%d\n", asus->light_level);
1204 static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr,
1205 const char *buf, size_t count)
1207 struct asus_laptop *asus = dev_get_drvdata(dev);
1210 rv = parse_arg(buf, count, &value);
1212 value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
1213 /* 0 <= value <= 15 */
1214 asus_als_level(asus, value);
1220 static int pega_int_read(struct asus_laptop *asus, int arg, int *result)
1222 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1223 int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg,
1226 union acpi_object *obj = buffer.pointer;
1227 if (obj && obj->type == ACPI_TYPE_INTEGER)
1228 *result = obj->integer.value;
1235 static ssize_t show_lsvalue(struct device *dev,
1236 struct device_attribute *attr, char *buf)
1238 struct asus_laptop *asus = dev_get_drvdata(dev);
1241 err = pega_int_read(asus, PEGA_READ_ALS_H, &hi);
1243 err = pega_int_read(asus, PEGA_READ_ALS_L, &lo);
1245 return sprintf(buf, "%d\n", 10 * hi + lo);
1252 static int asus_gps_status(struct asus_laptop *asus)
1254 unsigned long long status;
1255 acpi_status rv = AE_OK;
1257 rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS,
1259 if (ACPI_FAILURE(rv)) {
1260 pr_warn("Error reading GPS status\n");
1266 static int asus_gps_switch(struct asus_laptop *asus, int status)
1268 const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF;
1270 if (write_acpi_int(asus->handle, meth, 0x02))
1275 static ssize_t show_gps(struct device *dev,
1276 struct device_attribute *attr, char *buf)
1278 struct asus_laptop *asus = dev_get_drvdata(dev);
1280 return sprintf(buf, "%d\n", asus_gps_status(asus));
1283 static ssize_t store_gps(struct device *dev, struct device_attribute *attr,
1284 const char *buf, size_t count)
1286 struct asus_laptop *asus = dev_get_drvdata(dev);
1290 rv = parse_arg(buf, count, &value);
1293 ret = asus_gps_switch(asus, !!value);
1296 rfkill_set_sw_state(asus->gps.rfkill, !value);
1303 static int asus_gps_rfkill_set(void *data, bool blocked)
1305 struct asus_laptop *asus = data;
1307 return asus_gps_switch(asus, !blocked);
1310 static const struct rfkill_ops asus_gps_rfkill_ops = {
1311 .set_block = asus_gps_rfkill_set,
1314 static int asus_rfkill_set(void *data, bool blocked)
1316 struct asus_rfkill *rfk = data;
1317 struct asus_laptop *asus = rfk->asus;
1319 if (rfk->control_id == WL_RSTS)
1320 return asus_wlan_set(asus, !blocked);
1321 else if (rfk->control_id == BT_RSTS)
1322 return asus_bluetooth_set(asus, !blocked);
1323 else if (rfk->control_id == WM_RSTS)
1324 return asus_wimax_set(asus, !blocked);
1325 else if (rfk->control_id == WW_RSTS)
1326 return asus_wwan_set(asus, !blocked);
1331 static const struct rfkill_ops asus_rfkill_ops = {
1332 .set_block = asus_rfkill_set,
1335 static void asus_rfkill_terminate(struct asus_rfkill *rfk)
1340 rfkill_unregister(rfk->rfkill);
1341 rfkill_destroy(rfk->rfkill);
1345 static void asus_rfkill_exit(struct asus_laptop *asus)
1347 asus_rfkill_terminate(&asus->wwan);
1348 asus_rfkill_terminate(&asus->bluetooth);
1349 asus_rfkill_terminate(&asus->wlan);
1350 asus_rfkill_terminate(&asus->gps);
1353 static int asus_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
1354 const char *name, int control_id, int type,
1355 const struct rfkill_ops *ops)
1359 rfk->control_id = control_id;
1361 rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev,
1366 result = rfkill_register(rfk->rfkill);
1368 rfkill_destroy(rfk->rfkill);
1375 static int asus_rfkill_init(struct asus_laptop *asus)
1379 if (asus->is_pega_lucid)
1382 if (!acpi_check_handle(asus->handle, METHOD_GPS_ON, NULL) &&
1383 !acpi_check_handle(asus->handle, METHOD_GPS_OFF, NULL) &&
1384 !acpi_check_handle(asus->handle, METHOD_GPS_STATUS, NULL))
1385 result = asus_rfkill_setup(asus, &asus->gps, "asus-gps",
1386 -1, RFKILL_TYPE_GPS,
1387 &asus_gps_rfkill_ops);
1392 if (!acpi_check_handle(asus->handle, METHOD_WLAN, NULL) &&
1393 asus->wled_type == TYPE_RFKILL)
1394 result = asus_rfkill_setup(asus, &asus->wlan, "asus-wlan",
1395 WL_RSTS, RFKILL_TYPE_WLAN,
1400 if (!acpi_check_handle(asus->handle, METHOD_BLUETOOTH, NULL) &&
1401 asus->bled_type == TYPE_RFKILL)
1402 result = asus_rfkill_setup(asus, &asus->bluetooth,
1403 "asus-bluetooth", BT_RSTS,
1404 RFKILL_TYPE_BLUETOOTH,
1409 if (!acpi_check_handle(asus->handle, METHOD_WWAN, NULL))
1410 result = asus_rfkill_setup(asus, &asus->wwan, "asus-wwan",
1411 WW_RSTS, RFKILL_TYPE_WWAN,
1416 if (!acpi_check_handle(asus->handle, METHOD_WIMAX, NULL))
1417 result = asus_rfkill_setup(asus, &asus->wimax, "asus-wimax",
1418 WM_RSTS, RFKILL_TYPE_WIMAX,
1425 asus_rfkill_exit(asus);
1430 static int pega_rfkill_set(void *data, bool blocked)
1432 struct asus_rfkill *rfk = data;
1434 int ret = asus_pega_lucid_set(rfk->asus, rfk->control_id, !blocked);
1438 static const struct rfkill_ops pega_rfkill_ops = {
1439 .set_block = pega_rfkill_set,
1442 static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
1443 const char *name, int controlid, int rfkill_type)
1445 return asus_rfkill_setup(asus, rfk, name, controlid, rfkill_type,
1449 static int pega_rfkill_init(struct asus_laptop *asus)
1453 if(!asus->is_pega_lucid)
1456 ret = pega_rfkill_setup(asus, &asus->wlan, "pega-wlan",
1457 PEGA_WLAN, RFKILL_TYPE_WLAN);
1461 ret = pega_rfkill_setup(asus, &asus->bluetooth, "pega-bt",
1462 PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH);
1466 ret = pega_rfkill_setup(asus, &asus->wwan, "pega-wwan",
1467 PEGA_WWAN, RFKILL_TYPE_WWAN);
1471 asus_rfkill_exit(asus);
1477 * Input device (i.e. hotkeys)
1479 static void asus_input_notify(struct asus_laptop *asus, int event)
1481 if (!asus->inputdev)
1483 if (!sparse_keymap_report_event(asus->inputdev, event, 1, true))
1484 pr_info("Unknown key %x pressed\n", event);
1487 static int asus_input_init(struct asus_laptop *asus)
1489 struct input_dev *input;
1492 input = input_allocate_device();
1494 pr_warn("Unable to allocate input device\n");
1497 input->name = "Asus Laptop extra buttons";
1498 input->phys = ASUS_LAPTOP_FILE "/input0";
1499 input->id.bustype = BUS_HOST;
1500 input->dev.parent = &asus->platform_device->dev;
1502 error = sparse_keymap_setup(input, asus_keymap, NULL);
1504 pr_err("Unable to setup input device keymap\n");
1507 error = input_register_device(input);
1509 pr_warn("Unable to register input device\n");
1510 goto err_free_keymap;
1513 asus->inputdev = input;
1517 sparse_keymap_free(input);
1519 input_free_device(input);
1523 static void asus_input_exit(struct asus_laptop *asus)
1525 if (asus->inputdev) {
1526 sparse_keymap_free(asus->inputdev);
1527 input_unregister_device(asus->inputdev);
1529 asus->inputdev = NULL;
1535 static void asus_acpi_notify(struct acpi_device *device, u32 event)
1537 struct asus_laptop *asus = acpi_driver_data(device);
1540 /* TODO Find a better way to handle events count. */
1541 count = asus->event_count[event % 128]++;
1542 acpi_bus_generate_proc_event(asus->device, event, count);
1543 acpi_bus_generate_netlink_event(asus->device->pnp.device_class,
1544 dev_name(&asus->device->dev), event,
1547 /* Brightness events are special */
1548 if (event >= ATKD_BR_MIN && event <= ATKD_BR_MAX) {
1550 /* Ignore them completely if the acpi video driver is used */
1551 if (asus->backlight_device != NULL) {
1552 /* Update the backlight device. */
1553 asus_backlight_notify(asus);
1558 /* Accelerometer "coarse orientation change" event */
1559 if (asus->pega_accel_poll && event == 0xEA) {
1560 kobject_uevent(&asus->pega_accel_poll->input->dev.kobj,
1565 asus_input_notify(asus, event);
1568 static DEVICE_ATTR(infos, S_IRUGO, show_infos, NULL);
1569 static DEVICE_ATTR(wlan, S_IRUGO | S_IWUSR, show_wlan, store_wlan);
1570 static DEVICE_ATTR(bluetooth, S_IRUGO | S_IWUSR,
1571 show_bluetooth, store_bluetooth);
1572 static DEVICE_ATTR(wimax, S_IRUGO | S_IWUSR, show_wimax, store_wimax);
1573 static DEVICE_ATTR(wwan, S_IRUGO | S_IWUSR, show_wwan, store_wwan);
1574 static DEVICE_ATTR(display, S_IWUSR, NULL, store_disp);
1575 static DEVICE_ATTR(ledd, S_IRUGO | S_IWUSR, show_ledd, store_ledd);
1576 static DEVICE_ATTR(ls_value, S_IRUGO, show_lsvalue, NULL);
1577 static DEVICE_ATTR(ls_level, S_IRUGO | S_IWUSR, show_lslvl, store_lslvl);
1578 static DEVICE_ATTR(ls_switch, S_IRUGO | S_IWUSR, show_lssw, store_lssw);
1579 static DEVICE_ATTR(gps, S_IRUGO | S_IWUSR, show_gps, store_gps);
1581 static struct attribute *asus_attributes[] = {
1582 &dev_attr_infos.attr,
1583 &dev_attr_wlan.attr,
1584 &dev_attr_bluetooth.attr,
1585 &dev_attr_wimax.attr,
1586 &dev_attr_wwan.attr,
1587 &dev_attr_display.attr,
1588 &dev_attr_ledd.attr,
1589 &dev_attr_ls_value.attr,
1590 &dev_attr_ls_level.attr,
1591 &dev_attr_ls_switch.attr,
1596 static umode_t asus_sysfs_is_visible(struct kobject *kobj,
1597 struct attribute *attr,
1600 struct device *dev = container_of(kobj, struct device, kobj);
1601 struct platform_device *pdev = to_platform_device(dev);
1602 struct asus_laptop *asus = platform_get_drvdata(pdev);
1603 acpi_handle handle = asus->handle;
1606 if (asus->is_pega_lucid) {
1607 /* no ls_level interface on the Lucid */
1608 if (attr == &dev_attr_ls_switch.attr)
1610 else if (attr == &dev_attr_ls_level.attr)
1619 if (attr == &dev_attr_wlan.attr) {
1620 supported = !acpi_check_handle(handle, METHOD_WLAN, NULL);
1622 } else if (attr == &dev_attr_bluetooth.attr) {
1623 supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL);
1625 } else if (attr == &dev_attr_display.attr) {
1626 supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL);
1628 } else if (attr == &dev_attr_wimax.attr) {
1630 !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL);
1632 } else if (attr == &dev_attr_wwan.attr) {
1633 supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL);
1635 } else if (attr == &dev_attr_ledd.attr) {
1636 supported = !acpi_check_handle(handle, METHOD_LEDD, NULL);
1638 } else if (attr == &dev_attr_ls_switch.attr ||
1639 attr == &dev_attr_ls_level.attr) {
1640 supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) &&
1641 !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL);
1642 } else if (attr == &dev_attr_ls_value.attr) {
1643 supported = asus->is_pega_lucid;
1644 } else if (attr == &dev_attr_gps.attr) {
1645 supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) &&
1646 !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) &&
1647 !acpi_check_handle(handle, METHOD_GPS_STATUS, NULL);
1652 return supported ? attr->mode : 0;
1656 static const struct attribute_group asus_attr_group = {
1657 .is_visible = asus_sysfs_is_visible,
1658 .attrs = asus_attributes,
1661 static int asus_platform_init(struct asus_laptop *asus)
1665 asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, -1);
1666 if (!asus->platform_device)
1668 platform_set_drvdata(asus->platform_device, asus);
1670 result = platform_device_add(asus->platform_device);
1672 goto fail_platform_device;
1674 result = sysfs_create_group(&asus->platform_device->dev.kobj,
1682 platform_device_del(asus->platform_device);
1683 fail_platform_device:
1684 platform_device_put(asus->platform_device);
1688 static void asus_platform_exit(struct asus_laptop *asus)
1690 sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group);
1691 platform_device_unregister(asus->platform_device);
1694 static struct platform_driver platform_driver = {
1696 .name = ASUS_LAPTOP_FILE,
1697 .owner = THIS_MODULE,
1702 * This function is used to initialize the context with right values. In this
1703 * method, we can make all the detection we want, and modify the asus_laptop
1706 static int asus_laptop_get_info(struct asus_laptop *asus)
1708 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1709 union acpi_object *model = NULL;
1710 unsigned long long bsts_result;
1711 char *string = NULL;
1715 * Get DSDT headers early enough to allow for differentiating between
1716 * models, but late enough to allow acpi_bus_register_driver() to fail
1717 * before doing anything ACPI-specific. Should we encounter a machine,
1718 * which needs special handling (i.e. its hotkey device has a different
1719 * HID), this bit will be moved.
1721 status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info);
1722 if (ACPI_FAILURE(status))
1723 pr_warn("Couldn't get the DSDT table header\n");
1725 /* We have to write 0 on init this far for all ASUS models */
1726 if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) {
1727 pr_err("Hotkey initialization failed\n");
1731 /* This needs to be called for some laptops to init properly */
1733 acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result);
1734 if (ACPI_FAILURE(status))
1735 pr_warn("Error calling BSTS\n");
1736 else if (bsts_result)
1737 pr_notice("BSTS called, 0x%02x returned\n",
1738 (uint) bsts_result);
1741 if (write_acpi_int(asus->handle, "CWAP", wapf))
1742 pr_err("Error calling CWAP(%d)\n", wapf);
1744 * Try to match the object returned by INIT to the specific model.
1745 * Handle every possible object (or the lack of thereof) the DSDT
1746 * writers might throw at us. When in trouble, we pass NULL to
1747 * asus_model_match() and try something completely different.
1749 if (buffer.pointer) {
1750 model = buffer.pointer;
1751 switch (model->type) {
1752 case ACPI_TYPE_STRING:
1753 string = model->string.pointer;
1755 case ACPI_TYPE_BUFFER:
1756 string = model->buffer.pointer;
1763 asus->name = kstrdup(string, GFP_KERNEL);
1765 kfree(buffer.pointer);
1770 pr_notice(" %s model detected\n", string);
1772 if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL))
1773 asus->have_rsts = true;
1780 static int asus_acpi_init(struct asus_laptop *asus)
1784 result = acpi_bus_get_status(asus->device);
1787 if (!asus->device->status.present) {
1788 pr_err("Hotkey device not present, aborting\n");
1792 result = asus_laptop_get_info(asus);
1796 if (!strcmp(bled_type, "led"))
1797 asus->bled_type = TYPE_LED;
1798 else if (!strcmp(bled_type, "rfkill"))
1799 asus->bled_type = TYPE_RFKILL;
1801 if (!strcmp(wled_type, "led"))
1802 asus->wled_type = TYPE_LED;
1803 else if (!strcmp(wled_type, "rfkill"))
1804 asus->wled_type = TYPE_RFKILL;
1806 if (bluetooth_status >= 0)
1807 asus_bluetooth_set(asus, !!bluetooth_status);
1809 if (wlan_status >= 0)
1810 asus_wlan_set(asus, !!wlan_status);
1812 if (wimax_status >= 0)
1813 asus_wimax_set(asus, !!wimax_status);
1815 if (wwan_status >= 0)
1816 asus_wwan_set(asus, !!wwan_status);
1818 /* Keyboard Backlight is on by default */
1819 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL))
1820 asus_kled_set(asus, 1);
1822 /* LED display is off by default */
1823 asus->ledd_status = 0xFFF;
1825 /* Set initial values of light sensor and level */
1826 asus->light_switch = !!als_status;
1827 asus->light_level = 5; /* level 5 for sensor sensitivity */
1829 if (asus->is_pega_lucid) {
1830 asus_als_switch(asus, asus->light_switch);
1831 } else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) &&
1832 !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) {
1833 asus_als_switch(asus, asus->light_switch);
1834 asus_als_level(asus, asus->light_level);
1840 static void asus_dmi_check(void)
1844 model = dmi_get_system_info(DMI_PRODUCT_NAME);
1848 /* On L1400B WLED control the sound card, don't mess with it ... */
1849 if (strncmp(model, "L1400B", 6) == 0) {
1854 static bool asus_device_present;
1856 static int asus_acpi_add(struct acpi_device *device)
1858 struct asus_laptop *asus;
1861 pr_notice("Asus Laptop Support version %s\n",
1862 ASUS_LAPTOP_VERSION);
1863 asus = kzalloc(sizeof(struct asus_laptop), GFP_KERNEL);
1866 asus->handle = device->handle;
1867 strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME);
1868 strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS);
1869 device->driver_data = asus;
1870 asus->device = device;
1874 result = asus_acpi_init(asus);
1879 * Need platform type detection first, then the platform
1880 * device. It is used as a parent for the sub-devices below.
1882 asus->is_pega_lucid = asus_check_pega_lucid(asus);
1883 result = asus_platform_init(asus);
1887 if (!acpi_video_backlight_support()) {
1888 result = asus_backlight_init(asus);
1890 goto fail_backlight;
1892 pr_info("Backlight controlled by ACPI video driver\n");
1894 result = asus_input_init(asus);
1898 result = asus_led_init(asus);
1902 result = asus_rfkill_init(asus);
1903 if (result && result != -ENODEV)
1906 result = pega_accel_init(asus);
1907 if (result && result != -ENODEV)
1908 goto fail_pega_accel;
1910 result = pega_rfkill_init(asus);
1911 if (result && result != -ENODEV)
1912 goto fail_pega_rfkill;
1914 asus_device_present = true;
1918 pega_accel_exit(asus);
1920 asus_rfkill_exit(asus);
1922 asus_led_exit(asus);
1924 asus_input_exit(asus);
1926 asus_backlight_exit(asus);
1928 asus_platform_exit(asus);
1936 static int asus_acpi_remove(struct acpi_device *device)
1938 struct asus_laptop *asus = acpi_driver_data(device);
1940 asus_backlight_exit(asus);
1941 asus_rfkill_exit(asus);
1942 asus_led_exit(asus);
1943 asus_input_exit(asus);
1944 pega_accel_exit(asus);
1945 asus_platform_exit(asus);
1952 static const struct acpi_device_id asus_device_ids[] = {
1957 MODULE_DEVICE_TABLE(acpi, asus_device_ids);
1959 static struct acpi_driver asus_acpi_driver = {
1960 .name = ASUS_LAPTOP_NAME,
1961 .class = ASUS_LAPTOP_CLASS,
1962 .owner = THIS_MODULE,
1963 .ids = asus_device_ids,
1964 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1966 .add = asus_acpi_add,
1967 .remove = asus_acpi_remove,
1968 .notify = asus_acpi_notify,
1972 static int __init asus_laptop_init(void)
1976 result = platform_driver_register(&platform_driver);
1980 result = acpi_bus_register_driver(&asus_acpi_driver);
1982 goto fail_acpi_driver;
1983 if (!asus_device_present) {
1985 goto fail_no_device;
1990 acpi_bus_unregister_driver(&asus_acpi_driver);
1992 platform_driver_unregister(&platform_driver);
1996 static void __exit asus_laptop_exit(void)
1998 acpi_bus_unregister_driver(&asus_acpi_driver);
1999 platform_driver_unregister(&platform_driver);
2002 module_init(asus_laptop_init);
2003 module_exit(asus_laptop_exit);