pinctrl: move generic functions to the pinctrl_ namespace
[linux/fpc-iii.git] / drivers / platform / x86 / asus-laptop.c
blobb7944f9038866f2e50ba3c84604e2e7dea7f55b0
1 /*
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/
27 * Credits:
28 * Pontus Fuchs - Helper functions, cleanup
29 * Johann Wiesner - Small compile fixes
30 * John Belmonte - ACPI code for Toshiba laptop was a good starting point.
31 * Eric Burghard - LED display support for W1N
32 * Josh Green - Light Sens support
33 * Thomas Tuttle - His first patch for led support was very helpful
34 * Sam Lin - GPS support
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>
46 #include <linux/fb.h>
47 #include <linux/leds.h>
48 #include <linux/platform_device.h>
49 #include <linux/uaccess.h>
50 #include <linux/input.h>
51 #include <linux/input/sparse-keymap.h>
52 #include <linux/input-polldev.h>
53 #include <linux/rfkill.h>
54 #include <linux/slab.h>
55 #include <linux/dmi.h>
56 #include <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
74 * most of the time:
75 * Bit | Bluetooth | WLAN
76 * 0 | Hardware | Hardware
77 * 1 | Hardware | Software
78 * 4 | Software | Software
80 static uint wapf = 1;
81 module_param(wapf, uint, 0444);
82 MODULE_PARM_DESC(wapf, "WAPF value");
84 static int wlan_status = 1;
85 static int bluetooth_status = 1;
86 static int wimax_status = -1;
87 static int wwan_status = -1;
88 static int als_status;
90 module_param(wlan_status, int, 0444);
91 MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot "
92 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
93 "default is -1");
95 module_param(bluetooth_status, int, 0444);
96 MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot "
97 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
98 "default is -1");
100 module_param(wimax_status, int, 0444);
101 MODULE_PARM_DESC(wimax_status, "Set the wireless status on boot "
102 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
103 "default is -1");
105 module_param(wwan_status, int, 0444);
106 MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot "
107 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
108 "default is -1");
110 module_param(als_status, int, 0444);
111 MODULE_PARM_DESC(als_status, "Set the ALS status on boot "
112 "(0 = disabled, 1 = enabled). "
113 "default is 0");
116 * Some events we use, same for all Asus
118 #define ATKD_BR_UP 0x10 /* (event & ~ATKD_BR_UP) = brightness level */
119 #define ATKD_BR_DOWN 0x20 /* (event & ~ATKD_BR_DOWN) = britghness level */
120 #define ATKD_BR_MIN ATKD_BR_UP
121 #define ATKD_BR_MAX (ATKD_BR_DOWN | 0xF) /* 0x2f */
122 #define ATKD_LCD_ON 0x33
123 #define ATKD_LCD_OFF 0x34
126 * Known bits returned by \_SB.ATKD.HWRS
128 #define WL_HWRS 0x80
129 #define BT_HWRS 0x100
132 * Flags for hotk status
133 * WL_ON and BT_ON are also used for wireless_status()
135 #define WL_RSTS 0x01 /* internal Wifi */
136 #define BT_RSTS 0x02 /* internal Bluetooth */
137 #define WM_RSTS 0x08 /* internal wimax */
138 #define WW_RSTS 0x20 /* internal wwan */
140 /* LED */
141 #define METHOD_MLED "MLED"
142 #define METHOD_TLED "TLED"
143 #define METHOD_RLED "RLED" /* W1JC */
144 #define METHOD_PLED "PLED" /* A7J */
145 #define METHOD_GLED "GLED" /* G1, G2 (probably) */
147 /* LEDD */
148 #define METHOD_LEDD "SLCM"
151 * Bluetooth and WLAN
152 * WLED and BLED are not handled like other XLED, because in some dsdt
153 * they also control the WLAN/Bluetooth device.
155 #define METHOD_WLAN "WLED"
156 #define METHOD_BLUETOOTH "BLED"
158 /* WWAN and WIMAX */
159 #define METHOD_WWAN "GSMC"
160 #define METHOD_WIMAX "WMXC"
162 #define METHOD_WL_STATUS "RSTS"
164 /* Brightness */
165 #define METHOD_BRIGHTNESS_SET "SPLV"
166 #define METHOD_BRIGHTNESS_GET "GPLV"
168 /* Display */
169 #define METHOD_SWITCH_DISPLAY "SDSP"
171 #define METHOD_ALS_CONTROL "ALSC" /* Z71A Z71V */
172 #define METHOD_ALS_LEVEL "ALSL" /* Z71A Z71V */
174 /* GPS */
175 /* R2H use different handle for GPS on/off */
176 #define METHOD_GPS_ON "SDON"
177 #define METHOD_GPS_OFF "SDOF"
178 #define METHOD_GPS_STATUS "GPST"
180 /* Keyboard light */
181 #define METHOD_KBD_LIGHT_SET "SLKB"
182 #define METHOD_KBD_LIGHT_GET "GLKB"
184 /* For Pegatron Lucid tablet */
185 #define DEVICE_NAME_PEGA "Lucid"
187 #define METHOD_PEGA_ENABLE "ENPR"
188 #define METHOD_PEGA_DISABLE "DAPR"
189 #define PEGA_WLAN 0x00
190 #define PEGA_BLUETOOTH 0x01
191 #define PEGA_WWAN 0x02
192 #define PEGA_ALS 0x04
193 #define PEGA_ALS_POWER 0x05
195 #define METHOD_PEGA_READ "RDLN"
196 #define PEGA_READ_ALS_H 0x02
197 #define PEGA_READ_ALS_L 0x03
199 #define PEGA_ACCEL_NAME "pega_accel"
200 #define PEGA_ACCEL_DESC "Pegatron Lucid Tablet Accelerometer"
201 #define METHOD_XLRX "XLRX"
202 #define METHOD_XLRY "XLRY"
203 #define METHOD_XLRZ "XLRZ"
204 #define PEGA_ACC_CLAMP 512 /* 1G accel is reported as ~256, so clamp to 2G */
205 #define PEGA_ACC_RETRIES 3
208 * Define a specific led structure to keep the main structure clean
210 struct asus_led {
211 int wk;
212 struct work_struct work;
213 struct led_classdev led;
214 struct asus_laptop *asus;
215 const char *method;
219 * Same thing for rfkill
221 struct asus_pega_rfkill {
222 int control_id; /* type of control. Maps to PEGA_* values */
223 struct rfkill *rfkill;
224 struct asus_laptop *asus;
228 * This is the main structure, we can use it to store anything interesting
229 * about the hotk device
231 struct asus_laptop {
232 char *name; /* laptop name */
234 struct acpi_table_header *dsdt_info;
235 struct platform_device *platform_device;
236 struct acpi_device *device; /* the device we are in */
237 struct backlight_device *backlight_device;
239 struct input_dev *inputdev;
240 struct key_entry *keymap;
241 struct input_polled_dev *pega_accel_poll;
243 struct asus_led mled;
244 struct asus_led tled;
245 struct asus_led rled;
246 struct asus_led pled;
247 struct asus_led gled;
248 struct asus_led kled;
249 struct workqueue_struct *led_workqueue;
251 int wireless_status;
252 bool have_rsts;
253 bool is_pega_lucid;
254 bool pega_acc_live;
255 int pega_acc_x;
256 int pega_acc_y;
257 int pega_acc_z;
259 struct rfkill *gps_rfkill;
261 struct asus_pega_rfkill wlanrfk;
262 struct asus_pega_rfkill btrfk;
263 struct asus_pega_rfkill wwanrfk;
265 acpi_handle handle; /* the handle of the hotk device */
266 u32 ledd_status; /* status of the LED display */
267 u8 light_level; /* light sensor level */
268 u8 light_switch; /* light sensor switch value */
269 u16 event_count[128]; /* count for each event TODO make this better */
272 static const struct key_entry asus_keymap[] = {
273 /* Lenovo SL Specific keycodes */
274 {KE_KEY, 0x02, { KEY_SCREENLOCK } },
275 {KE_KEY, 0x05, { KEY_WLAN } },
276 {KE_KEY, 0x08, { KEY_F13 } },
277 {KE_KEY, 0x17, { KEY_ZOOM } },
278 {KE_KEY, 0x1f, { KEY_BATTERY } },
279 /* End of Lenovo SL Specific keycodes */
280 {KE_KEY, 0x30, { KEY_VOLUMEUP } },
281 {KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
282 {KE_KEY, 0x32, { KEY_MUTE } },
283 {KE_KEY, 0x33, { KEY_SWITCHVIDEOMODE } },
284 {KE_KEY, 0x34, { KEY_SWITCHVIDEOMODE } },
285 {KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
286 {KE_KEY, 0x41, { KEY_NEXTSONG } },
287 {KE_KEY, 0x43, { KEY_STOPCD } },
288 {KE_KEY, 0x45, { KEY_PLAYPAUSE } },
289 {KE_KEY, 0x4c, { KEY_MEDIA } },
290 {KE_KEY, 0x50, { KEY_EMAIL } },
291 {KE_KEY, 0x51, { KEY_WWW } },
292 {KE_KEY, 0x55, { KEY_CALC } },
293 {KE_KEY, 0x5C, { KEY_SCREENLOCK } }, /* Screenlock */
294 {KE_KEY, 0x5D, { KEY_WLAN } },
295 {KE_KEY, 0x5E, { KEY_WLAN } },
296 {KE_KEY, 0x5F, { KEY_WLAN } },
297 {KE_KEY, 0x60, { KEY_SWITCHVIDEOMODE } },
298 {KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } },
299 {KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } },
300 {KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } },
301 {KE_KEY, 0x6B, { KEY_F13 } }, /* Lock Touchpad */
302 {KE_KEY, 0x7E, { KEY_BLUETOOTH } },
303 {KE_KEY, 0x7D, { KEY_BLUETOOTH } },
304 {KE_KEY, 0x82, { KEY_CAMERA } },
305 {KE_KEY, 0x88, { KEY_WLAN } },
306 {KE_KEY, 0x8A, { KEY_PROG1 } },
307 {KE_KEY, 0x95, { KEY_MEDIA } },
308 {KE_KEY, 0x99, { KEY_PHONE } },
309 {KE_KEY, 0xc4, { KEY_KBDILLUMUP } },
310 {KE_KEY, 0xc5, { KEY_KBDILLUMDOWN } },
311 {KE_KEY, 0xb5, { KEY_CALC } },
312 {KE_END, 0},
317 * This function evaluates an ACPI method, given an int as parameter, the
318 * method is searched within the scope of the handle, can be NULL. The output
319 * of the method is written is output, which can also be NULL
321 * returns 0 if write is successful, -1 else.
323 static int write_acpi_int_ret(acpi_handle handle, const char *method, int val,
324 struct acpi_buffer *output)
326 struct acpi_object_list params; /* list of input parameters (an int) */
327 union acpi_object in_obj; /* the only param we use */
328 acpi_status status;
330 if (!handle)
331 return -1;
333 params.count = 1;
334 params.pointer = &in_obj;
335 in_obj.type = ACPI_TYPE_INTEGER;
336 in_obj.integer.value = val;
338 status = acpi_evaluate_object(handle, (char *)method, &params, output);
339 if (status == AE_OK)
340 return 0;
341 else
342 return -1;
345 static int write_acpi_int(acpi_handle handle, const char *method, int val)
347 return write_acpi_int_ret(handle, method, val, NULL);
350 static int acpi_check_handle(acpi_handle handle, const char *method,
351 acpi_handle *ret)
353 acpi_status status;
355 if (method == NULL)
356 return -ENODEV;
358 if (ret)
359 status = acpi_get_handle(handle, (char *)method,
360 ret);
361 else {
362 acpi_handle dummy;
364 status = acpi_get_handle(handle, (char *)method,
365 &dummy);
368 if (status != AE_OK) {
369 if (ret)
370 pr_warn("Error finding %s\n", method);
371 return -ENODEV;
373 return 0;
376 static bool asus_check_pega_lucid(struct asus_laptop *asus)
378 return !strcmp(asus->name, DEVICE_NAME_PEGA) &&
379 !acpi_check_handle(asus->handle, METHOD_PEGA_ENABLE, NULL) &&
380 !acpi_check_handle(asus->handle, METHOD_PEGA_DISABLE, NULL) &&
381 !acpi_check_handle(asus->handle, METHOD_PEGA_READ, NULL);
384 static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable)
386 char *method = enable ? METHOD_PEGA_ENABLE : METHOD_PEGA_DISABLE;
387 return write_acpi_int(asus->handle, method, unit);
390 static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method)
392 int i, delta;
393 unsigned long long val;
394 for (i = 0; i < PEGA_ACC_RETRIES; i++) {
395 acpi_evaluate_integer(asus->handle, method, NULL, &val);
397 /* The output is noisy. From reading the ASL
398 * dissassembly, timeout errors are returned with 1's
399 * in the high word, and the lack of locking around
400 * thei hi/lo byte reads means that a transition
401 * between (for example) -1 and 0 could be read as
402 * 0xff00 or 0x00ff. */
403 delta = abs(curr - (short)val);
404 if (delta < 128 && !(val & ~0xffff))
405 break;
407 return clamp_val((short)val, -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP);
410 static void pega_accel_poll(struct input_polled_dev *ipd)
412 struct device *parent = ipd->input->dev.parent;
413 struct asus_laptop *asus = dev_get_drvdata(parent);
415 /* In some cases, the very first call to poll causes a
416 * recursive fault under the polldev worker. This is
417 * apparently related to very early userspace access to the
418 * device, and perhaps a firmware bug. Fake the first report. */
419 if (!asus->pega_acc_live) {
420 asus->pega_acc_live = true;
421 input_report_abs(ipd->input, ABS_X, 0);
422 input_report_abs(ipd->input, ABS_Y, 0);
423 input_report_abs(ipd->input, ABS_Z, 0);
424 input_sync(ipd->input);
425 return;
428 asus->pega_acc_x = pega_acc_axis(asus, asus->pega_acc_x, METHOD_XLRX);
429 asus->pega_acc_y = pega_acc_axis(asus, asus->pega_acc_y, METHOD_XLRY);
430 asus->pega_acc_z = pega_acc_axis(asus, asus->pega_acc_z, METHOD_XLRZ);
432 /* Note transform, convert to "right/up/out" in the native
433 * landscape orientation (i.e. the vector is the direction of
434 * "real up" in the device's cartiesian coordinates). */
435 input_report_abs(ipd->input, ABS_X, -asus->pega_acc_x);
436 input_report_abs(ipd->input, ABS_Y, -asus->pega_acc_y);
437 input_report_abs(ipd->input, ABS_Z, asus->pega_acc_z);
438 input_sync(ipd->input);
441 static void pega_accel_exit(struct asus_laptop *asus)
443 if (asus->pega_accel_poll) {
444 input_unregister_polled_device(asus->pega_accel_poll);
445 input_free_polled_device(asus->pega_accel_poll);
447 asus->pega_accel_poll = NULL;
450 static int pega_accel_init(struct asus_laptop *asus)
452 int err;
453 struct input_polled_dev *ipd;
455 if (!asus->is_pega_lucid)
456 return -ENODEV;
458 if (acpi_check_handle(asus->handle, METHOD_XLRX, NULL) ||
459 acpi_check_handle(asus->handle, METHOD_XLRY, NULL) ||
460 acpi_check_handle(asus->handle, METHOD_XLRZ, NULL))
461 return -ENODEV;
463 ipd = input_allocate_polled_device();
464 if (!ipd)
465 return -ENOMEM;
467 ipd->poll = pega_accel_poll;
468 ipd->poll_interval = 125;
469 ipd->poll_interval_min = 50;
470 ipd->poll_interval_max = 2000;
472 ipd->input->name = PEGA_ACCEL_DESC;
473 ipd->input->phys = PEGA_ACCEL_NAME "/input0";
474 ipd->input->dev.parent = &asus->platform_device->dev;
475 ipd->input->id.bustype = BUS_HOST;
477 set_bit(EV_ABS, ipd->input->evbit);
478 input_set_abs_params(ipd->input, ABS_X,
479 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
480 input_set_abs_params(ipd->input, ABS_Y,
481 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
482 input_set_abs_params(ipd->input, ABS_Z,
483 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
485 err = input_register_polled_device(ipd);
486 if (err)
487 goto exit;
489 asus->pega_accel_poll = ipd;
490 return 0;
492 exit:
493 input_free_polled_device(ipd);
494 return err;
497 /* Generic LED function */
498 static int asus_led_set(struct asus_laptop *asus, const char *method,
499 int value)
501 if (!strcmp(method, METHOD_MLED))
502 value = !value;
503 else if (!strcmp(method, METHOD_GLED))
504 value = !value + 1;
505 else
506 value = !!value;
508 return write_acpi_int(asus->handle, method, value);
512 * LEDs
514 /* /sys/class/led handlers */
515 static void asus_led_cdev_set(struct led_classdev *led_cdev,
516 enum led_brightness value)
518 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
519 struct asus_laptop *asus = led->asus;
521 led->wk = !!value;
522 queue_work(asus->led_workqueue, &led->work);
525 static void asus_led_cdev_update(struct work_struct *work)
527 struct asus_led *led = container_of(work, struct asus_led, work);
528 struct asus_laptop *asus = led->asus;
530 asus_led_set(asus, led->method, led->wk);
533 static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev)
535 return led_cdev->brightness;
539 * Keyboard backlight (also a LED)
541 static int asus_kled_lvl(struct asus_laptop *asus)
543 unsigned long long kblv;
544 struct acpi_object_list params;
545 union acpi_object in_obj;
546 acpi_status rv;
548 params.count = 1;
549 params.pointer = &in_obj;
550 in_obj.type = ACPI_TYPE_INTEGER;
551 in_obj.integer.value = 2;
553 rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET,
554 &params, &kblv);
555 if (ACPI_FAILURE(rv)) {
556 pr_warn("Error reading kled level\n");
557 return -ENODEV;
559 return kblv;
562 static int asus_kled_set(struct asus_laptop *asus, int kblv)
564 if (kblv > 0)
565 kblv = (1 << 7) | (kblv & 0x7F);
566 else
567 kblv = 0;
569 if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) {
570 pr_warn("Keyboard LED display write failed\n");
571 return -EINVAL;
573 return 0;
576 static void asus_kled_cdev_set(struct led_classdev *led_cdev,
577 enum led_brightness value)
579 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
580 struct asus_laptop *asus = led->asus;
582 led->wk = value;
583 queue_work(asus->led_workqueue, &led->work);
586 static void asus_kled_cdev_update(struct work_struct *work)
588 struct asus_led *led = container_of(work, struct asus_led, work);
589 struct asus_laptop *asus = led->asus;
591 asus_kled_set(asus, led->wk);
594 static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev)
596 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
597 struct asus_laptop *asus = led->asus;
599 return asus_kled_lvl(asus);
602 static void asus_led_exit(struct asus_laptop *asus)
604 if (!IS_ERR_OR_NULL(asus->mled.led.dev))
605 led_classdev_unregister(&asus->mled.led);
606 if (!IS_ERR_OR_NULL(asus->tled.led.dev))
607 led_classdev_unregister(&asus->tled.led);
608 if (!IS_ERR_OR_NULL(asus->pled.led.dev))
609 led_classdev_unregister(&asus->pled.led);
610 if (!IS_ERR_OR_NULL(asus->rled.led.dev))
611 led_classdev_unregister(&asus->rled.led);
612 if (!IS_ERR_OR_NULL(asus->gled.led.dev))
613 led_classdev_unregister(&asus->gled.led);
614 if (!IS_ERR_OR_NULL(asus->kled.led.dev))
615 led_classdev_unregister(&asus->kled.led);
616 if (asus->led_workqueue) {
617 destroy_workqueue(asus->led_workqueue);
618 asus->led_workqueue = NULL;
622 /* Ugly macro, need to fix that later */
623 static int asus_led_register(struct asus_laptop *asus,
624 struct asus_led *led,
625 const char *name, const char *method)
627 struct led_classdev *led_cdev = &led->led;
629 if (!method || acpi_check_handle(asus->handle, method, NULL))
630 return 0; /* Led not present */
632 led->asus = asus;
633 led->method = method;
635 INIT_WORK(&led->work, asus_led_cdev_update);
636 led_cdev->name = name;
637 led_cdev->brightness_set = asus_led_cdev_set;
638 led_cdev->brightness_get = asus_led_cdev_get;
639 led_cdev->max_brightness = 1;
640 return led_classdev_register(&asus->platform_device->dev, led_cdev);
643 static int asus_led_init(struct asus_laptop *asus)
645 int r;
648 * The Pegatron Lucid has no physical leds, but all methods are
649 * available in the DSDT...
651 if (asus->is_pega_lucid)
652 return 0;
655 * Functions that actually update the LED's are called from a
656 * workqueue. By doing this as separate work rather than when the LED
657 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
658 * potentially bad time, such as a timer interrupt.
660 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
661 if (!asus->led_workqueue)
662 return -ENOMEM;
664 r = asus_led_register(asus, &asus->mled, "asus::mail", METHOD_MLED);
665 if (r)
666 goto error;
667 r = asus_led_register(asus, &asus->tled, "asus::touchpad", METHOD_TLED);
668 if (r)
669 goto error;
670 r = asus_led_register(asus, &asus->rled, "asus::record", METHOD_RLED);
671 if (r)
672 goto error;
673 r = asus_led_register(asus, &asus->pled, "asus::phone", METHOD_PLED);
674 if (r)
675 goto error;
676 r = asus_led_register(asus, &asus->gled, "asus::gaming", METHOD_GLED);
677 if (r)
678 goto error;
679 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL) &&
680 !acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL)) {
681 struct asus_led *led = &asus->kled;
682 struct led_classdev *cdev = &led->led;
684 led->asus = asus;
686 INIT_WORK(&led->work, asus_kled_cdev_update);
687 cdev->name = "asus::kbd_backlight";
688 cdev->brightness_set = asus_kled_cdev_set;
689 cdev->brightness_get = asus_kled_cdev_get;
690 cdev->max_brightness = 3;
691 r = led_classdev_register(&asus->platform_device->dev, cdev);
693 error:
694 if (r)
695 asus_led_exit(asus);
696 return r;
700 * Backlight device
702 static int asus_read_brightness(struct backlight_device *bd)
704 struct asus_laptop *asus = bl_get_data(bd);
705 unsigned long long value;
706 acpi_status rv = AE_OK;
708 rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET,
709 NULL, &value);
710 if (ACPI_FAILURE(rv))
711 pr_warn("Error reading brightness\n");
713 return value;
716 static int asus_set_brightness(struct backlight_device *bd, int value)
718 struct asus_laptop *asus = bl_get_data(bd);
720 if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) {
721 pr_warn("Error changing brightness\n");
722 return -EIO;
724 return 0;
727 static int update_bl_status(struct backlight_device *bd)
729 int value = bd->props.brightness;
731 return asus_set_brightness(bd, value);
734 static const struct backlight_ops asusbl_ops = {
735 .get_brightness = asus_read_brightness,
736 .update_status = update_bl_status,
739 static int asus_backlight_notify(struct asus_laptop *asus)
741 struct backlight_device *bd = asus->backlight_device;
742 int old = bd->props.brightness;
744 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
746 return old;
749 static int asus_backlight_init(struct asus_laptop *asus)
751 struct backlight_device *bd;
752 struct backlight_properties props;
754 if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) ||
755 acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL))
756 return 0;
758 memset(&props, 0, sizeof(struct backlight_properties));
759 props.max_brightness = 15;
760 props.type = BACKLIGHT_PLATFORM;
762 bd = backlight_device_register(ASUS_LAPTOP_FILE,
763 &asus->platform_device->dev, asus,
764 &asusbl_ops, &props);
765 if (IS_ERR(bd)) {
766 pr_err("Could not register asus backlight device\n");
767 asus->backlight_device = NULL;
768 return PTR_ERR(bd);
771 asus->backlight_device = bd;
772 bd->props.brightness = asus_read_brightness(bd);
773 bd->props.power = FB_BLANK_UNBLANK;
774 backlight_update_status(bd);
775 return 0;
778 static void asus_backlight_exit(struct asus_laptop *asus)
780 if (asus->backlight_device)
781 backlight_device_unregister(asus->backlight_device);
782 asus->backlight_device = NULL;
786 * Platform device handlers
790 * We write our info in page, we begin at offset off and cannot write more
791 * than count bytes. We set eof to 1 if we handle those 2 values. We return the
792 * number of bytes written in page
794 static ssize_t show_infos(struct device *dev,
795 struct device_attribute *attr, char *page)
797 struct asus_laptop *asus = dev_get_drvdata(dev);
798 int len = 0;
799 unsigned long long temp;
800 char buf[16]; /* enough for all info */
801 acpi_status rv = AE_OK;
804 * We use the easy way, we don't care of off and count,
805 * so we don't set eof to 1
808 len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n");
809 len += sprintf(page + len, "Model reference : %s\n", asus->name);
811 * The SFUN method probably allows the original driver to get the list
812 * of features supported by a given model. For now, 0x0100 or 0x0800
813 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
814 * The significance of others is yet to be found.
816 rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp);
817 if (!ACPI_FAILURE(rv))
818 len += sprintf(page + len, "SFUN value : %#x\n",
819 (uint) temp);
821 * The HWRS method return informations about the hardware.
822 * 0x80 bit is for WLAN, 0x100 for Bluetooth.
823 * The significance of others is yet to be found.
824 * If we don't find the method, we assume the device are present.
826 rv = acpi_evaluate_integer(asus->handle, "HRWS", NULL, &temp);
827 if (!ACPI_FAILURE(rv))
828 len += sprintf(page + len, "HRWS value : %#x\n",
829 (uint) temp);
831 * Another value for userspace: the ASYM method returns 0x02 for
832 * battery low and 0x04 for battery critical, its readings tend to be
833 * more accurate than those provided by _BST.
834 * Note: since not all the laptops provide this method, errors are
835 * silently ignored.
837 rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp);
838 if (!ACPI_FAILURE(rv))
839 len += sprintf(page + len, "ASYM value : %#x\n",
840 (uint) temp);
841 if (asus->dsdt_info) {
842 snprintf(buf, 16, "%d", asus->dsdt_info->length);
843 len += sprintf(page + len, "DSDT length : %s\n", buf);
844 snprintf(buf, 16, "%d", asus->dsdt_info->checksum);
845 len += sprintf(page + len, "DSDT checksum : %s\n", buf);
846 snprintf(buf, 16, "%d", asus->dsdt_info->revision);
847 len += sprintf(page + len, "DSDT revision : %s\n", buf);
848 snprintf(buf, 7, "%s", asus->dsdt_info->oem_id);
849 len += sprintf(page + len, "OEM id : %s\n", buf);
850 snprintf(buf, 9, "%s", asus->dsdt_info->oem_table_id);
851 len += sprintf(page + len, "OEM table id : %s\n", buf);
852 snprintf(buf, 16, "%x", asus->dsdt_info->oem_revision);
853 len += sprintf(page + len, "OEM revision : 0x%s\n", buf);
854 snprintf(buf, 5, "%s", asus->dsdt_info->asl_compiler_id);
855 len += sprintf(page + len, "ASL comp vendor id : %s\n", buf);
856 snprintf(buf, 16, "%x", asus->dsdt_info->asl_compiler_revision);
857 len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf);
860 return len;
863 static int parse_arg(const char *buf, unsigned long count, int *val)
865 if (!count)
866 return 0;
867 if (count > 31)
868 return -EINVAL;
869 if (sscanf(buf, "%i", val) != 1)
870 return -EINVAL;
871 return count;
874 static ssize_t sysfs_acpi_set(struct asus_laptop *asus,
875 const char *buf, size_t count,
876 const char *method)
878 int rv, value;
879 int out = 0;
881 rv = parse_arg(buf, count, &value);
882 if (rv > 0)
883 out = value ? 1 : 0;
885 if (write_acpi_int(asus->handle, method, value))
886 return -ENODEV;
887 return rv;
891 * LEDD display
893 static ssize_t show_ledd(struct device *dev,
894 struct device_attribute *attr, char *buf)
896 struct asus_laptop *asus = dev_get_drvdata(dev);
898 return sprintf(buf, "0x%08x\n", asus->ledd_status);
901 static ssize_t store_ledd(struct device *dev, struct device_attribute *attr,
902 const char *buf, size_t count)
904 struct asus_laptop *asus = dev_get_drvdata(dev);
905 int rv, value;
907 rv = parse_arg(buf, count, &value);
908 if (rv > 0) {
909 if (write_acpi_int(asus->handle, METHOD_LEDD, value)) {
910 pr_warn("LED display write failed\n");
911 return -ENODEV;
913 asus->ledd_status = (u32) value;
915 return rv;
919 * Wireless
921 static int asus_wireless_status(struct asus_laptop *asus, int mask)
923 unsigned long long status;
924 acpi_status rv = AE_OK;
926 if (!asus->have_rsts)
927 return (asus->wireless_status & mask) ? 1 : 0;
929 rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS,
930 NULL, &status);
931 if (ACPI_FAILURE(rv)) {
932 pr_warn("Error reading Wireless status\n");
933 return -EINVAL;
935 return !!(status & mask);
939 * WLAN
941 static int asus_wlan_set(struct asus_laptop *asus, int status)
943 if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) {
944 pr_warn("Error setting wlan status to %d\n", status);
945 return -EIO;
947 return 0;
950 static ssize_t show_wlan(struct device *dev,
951 struct device_attribute *attr, char *buf)
953 struct asus_laptop *asus = dev_get_drvdata(dev);
955 return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS));
958 static ssize_t store_wlan(struct device *dev, struct device_attribute *attr,
959 const char *buf, size_t count)
961 struct asus_laptop *asus = dev_get_drvdata(dev);
963 return sysfs_acpi_set(asus, buf, count, METHOD_WLAN);
967 * Bluetooth
969 static int asus_bluetooth_set(struct asus_laptop *asus, int status)
971 if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) {
972 pr_warn("Error setting bluetooth status to %d\n", status);
973 return -EIO;
975 return 0;
978 static ssize_t show_bluetooth(struct device *dev,
979 struct device_attribute *attr, char *buf)
981 struct asus_laptop *asus = dev_get_drvdata(dev);
983 return sprintf(buf, "%d\n", asus_wireless_status(asus, BT_RSTS));
986 static ssize_t store_bluetooth(struct device *dev,
987 struct device_attribute *attr, const char *buf,
988 size_t count)
990 struct asus_laptop *asus = dev_get_drvdata(dev);
992 return sysfs_acpi_set(asus, buf, count, METHOD_BLUETOOTH);
996 * Wimax
998 static int asus_wimax_set(struct asus_laptop *asus, int status)
1000 if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) {
1001 pr_warn("Error setting wimax status to %d\n", status);
1002 return -EIO;
1004 return 0;
1007 static ssize_t show_wimax(struct device *dev,
1008 struct device_attribute *attr, char *buf)
1010 struct asus_laptop *asus = dev_get_drvdata(dev);
1012 return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS));
1015 static ssize_t store_wimax(struct device *dev,
1016 struct device_attribute *attr, const char *buf,
1017 size_t count)
1019 struct asus_laptop *asus = dev_get_drvdata(dev);
1021 return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX);
1025 * Wwan
1027 static int asus_wwan_set(struct asus_laptop *asus, int status)
1029 if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) {
1030 pr_warn("Error setting wwan status to %d\n", status);
1031 return -EIO;
1033 return 0;
1036 static ssize_t show_wwan(struct device *dev,
1037 struct device_attribute *attr, char *buf)
1039 struct asus_laptop *asus = dev_get_drvdata(dev);
1041 return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS));
1044 static ssize_t store_wwan(struct device *dev,
1045 struct device_attribute *attr, const char *buf,
1046 size_t count)
1048 struct asus_laptop *asus = dev_get_drvdata(dev);
1050 return sysfs_acpi_set(asus, buf, count, METHOD_WWAN);
1054 * Display
1056 static void asus_set_display(struct asus_laptop *asus, int value)
1058 /* no sanity check needed for now */
1059 if (write_acpi_int(asus->handle, METHOD_SWITCH_DISPLAY, value))
1060 pr_warn("Error setting display\n");
1061 return;
1065 * Experimental support for display switching. As of now: 1 should activate
1066 * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI.
1067 * Any combination (bitwise) of these will suffice. I never actually tested 4
1068 * displays hooked up simultaneously, so be warned. See the acpi4asus README
1069 * for more info.
1071 static ssize_t store_disp(struct device *dev, struct device_attribute *attr,
1072 const char *buf, size_t count)
1074 struct asus_laptop *asus = dev_get_drvdata(dev);
1075 int rv, value;
1077 rv = parse_arg(buf, count, &value);
1078 if (rv > 0)
1079 asus_set_display(asus, value);
1080 return rv;
1084 * Light Sens
1086 static void asus_als_switch(struct asus_laptop *asus, int value)
1088 int ret;
1090 if (asus->is_pega_lucid) {
1091 ret = asus_pega_lucid_set(asus, PEGA_ALS, value);
1092 if (!ret)
1093 ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value);
1094 } else {
1095 ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value);
1097 if (ret)
1098 pr_warning("Error setting light sensor switch\n");
1100 asus->light_switch = value;
1103 static ssize_t show_lssw(struct device *dev,
1104 struct device_attribute *attr, char *buf)
1106 struct asus_laptop *asus = dev_get_drvdata(dev);
1108 return sprintf(buf, "%d\n", asus->light_switch);
1111 static ssize_t store_lssw(struct device *dev, struct device_attribute *attr,
1112 const char *buf, size_t count)
1114 struct asus_laptop *asus = dev_get_drvdata(dev);
1115 int rv, value;
1117 rv = parse_arg(buf, count, &value);
1118 if (rv > 0)
1119 asus_als_switch(asus, value ? 1 : 0);
1121 return rv;
1124 static void asus_als_level(struct asus_laptop *asus, int value)
1126 if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value))
1127 pr_warn("Error setting light sensor level\n");
1128 asus->light_level = value;
1131 static ssize_t show_lslvl(struct device *dev,
1132 struct device_attribute *attr, char *buf)
1134 struct asus_laptop *asus = dev_get_drvdata(dev);
1136 return sprintf(buf, "%d\n", asus->light_level);
1139 static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr,
1140 const char *buf, size_t count)
1142 struct asus_laptop *asus = dev_get_drvdata(dev);
1143 int rv, value;
1145 rv = parse_arg(buf, count, &value);
1146 if (rv > 0) {
1147 value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
1148 /* 0 <= value <= 15 */
1149 asus_als_level(asus, value);
1152 return rv;
1155 static int pega_int_read(struct asus_laptop *asus, int arg, int *result)
1157 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1158 int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg,
1159 &buffer);
1160 if (!err) {
1161 union acpi_object *obj = buffer.pointer;
1162 if (obj && obj->type == ACPI_TYPE_INTEGER)
1163 *result = obj->integer.value;
1164 else
1165 err = -EIO;
1167 return err;
1170 static ssize_t show_lsvalue(struct device *dev,
1171 struct device_attribute *attr, char *buf)
1173 struct asus_laptop *asus = dev_get_drvdata(dev);
1174 int err, hi, lo;
1176 err = pega_int_read(asus, PEGA_READ_ALS_H, &hi);
1177 if (!err)
1178 err = pega_int_read(asus, PEGA_READ_ALS_L, &lo);
1179 if (!err)
1180 return sprintf(buf, "%d\n", 10 * hi + lo);
1181 return err;
1185 * GPS
1187 static int asus_gps_status(struct asus_laptop *asus)
1189 unsigned long long status;
1190 acpi_status rv = AE_OK;
1192 rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS,
1193 NULL, &status);
1194 if (ACPI_FAILURE(rv)) {
1195 pr_warn("Error reading GPS status\n");
1196 return -ENODEV;
1198 return !!status;
1201 static int asus_gps_switch(struct asus_laptop *asus, int status)
1203 const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF;
1205 if (write_acpi_int(asus->handle, meth, 0x02))
1206 return -ENODEV;
1207 return 0;
1210 static ssize_t show_gps(struct device *dev,
1211 struct device_attribute *attr, char *buf)
1213 struct asus_laptop *asus = dev_get_drvdata(dev);
1215 return sprintf(buf, "%d\n", asus_gps_status(asus));
1218 static ssize_t store_gps(struct device *dev, struct device_attribute *attr,
1219 const char *buf, size_t count)
1221 struct asus_laptop *asus = dev_get_drvdata(dev);
1222 int rv, value;
1223 int ret;
1225 rv = parse_arg(buf, count, &value);
1226 if (rv <= 0)
1227 return -EINVAL;
1228 ret = asus_gps_switch(asus, !!value);
1229 if (ret)
1230 return ret;
1231 rfkill_set_sw_state(asus->gps_rfkill, !value);
1232 return rv;
1236 * rfkill
1238 static int asus_gps_rfkill_set(void *data, bool blocked)
1240 struct asus_laptop *asus = data;
1242 return asus_gps_switch(asus, !blocked);
1245 static const struct rfkill_ops asus_gps_rfkill_ops = {
1246 .set_block = asus_gps_rfkill_set,
1249 static void asus_rfkill_exit(struct asus_laptop *asus)
1251 if (asus->gps_rfkill) {
1252 rfkill_unregister(asus->gps_rfkill);
1253 rfkill_destroy(asus->gps_rfkill);
1254 asus->gps_rfkill = NULL;
1258 static int asus_rfkill_init(struct asus_laptop *asus)
1260 int result;
1262 if (acpi_check_handle(asus->handle, METHOD_GPS_ON, NULL) ||
1263 acpi_check_handle(asus->handle, METHOD_GPS_OFF, NULL) ||
1264 acpi_check_handle(asus->handle, METHOD_GPS_STATUS, NULL))
1265 return 0;
1267 asus->gps_rfkill = rfkill_alloc("asus-gps", &asus->platform_device->dev,
1268 RFKILL_TYPE_GPS,
1269 &asus_gps_rfkill_ops, asus);
1270 if (!asus->gps_rfkill)
1271 return -EINVAL;
1273 result = rfkill_register(asus->gps_rfkill);
1274 if (result) {
1275 rfkill_destroy(asus->gps_rfkill);
1276 asus->gps_rfkill = NULL;
1279 return result;
1282 static int pega_rfkill_set(void *data, bool blocked)
1284 struct asus_pega_rfkill *pega_rfk = data;
1286 int ret = asus_pega_lucid_set(pega_rfk->asus, pega_rfk->control_id, !blocked);
1287 pr_warn("Setting rfkill %d, to %d; returned %d\n", pega_rfk->control_id, !blocked, ret);
1289 return ret;
1292 static const struct rfkill_ops pega_rfkill_ops = {
1293 .set_block = pega_rfkill_set,
1296 static void pega_rfkill_terminate(struct asus_pega_rfkill *pega_rfk)
1298 pr_warn("Terminating %d\n", pega_rfk->control_id);
1299 if (pega_rfk->rfkill) {
1300 rfkill_unregister(pega_rfk->rfkill);
1301 rfkill_destroy(pega_rfk->rfkill);
1302 pega_rfk->rfkill = NULL;
1306 static void pega_rfkill_exit(struct asus_laptop *asus)
1308 pega_rfkill_terminate(&asus->wwanrfk);
1309 pega_rfkill_terminate(&asus->btrfk);
1310 pega_rfkill_terminate(&asus->wlanrfk);
1313 static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_pega_rfkill *pega_rfk,
1314 const char *name, int controlid, int rfkill_type)
1316 int result;
1318 pr_warn("Setting up rfk %s, control %d, type %d\n", name, controlid, rfkill_type);
1319 pega_rfk->control_id = controlid;
1320 pega_rfk->asus = asus;
1321 pega_rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev,
1322 rfkill_type, &pega_rfkill_ops, pega_rfk);
1323 if (!pega_rfk->rfkill)
1324 return -EINVAL;
1326 result = rfkill_register(pega_rfk->rfkill);
1327 if (result) {
1328 rfkill_destroy(pega_rfk->rfkill);
1329 pega_rfk->rfkill = NULL;
1332 return result;
1335 static int pega_rfkill_init(struct asus_laptop *asus)
1337 int ret = 0;
1339 if(!asus->is_pega_lucid)
1340 return -ENODEV;
1342 ret = pega_rfkill_setup(asus, &asus->wlanrfk, "pega-wlan", PEGA_WLAN, RFKILL_TYPE_WLAN);
1343 if(ret)
1344 return ret;
1345 ret = pega_rfkill_setup(asus, &asus->btrfk, "pega-bt", PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH);
1346 if(ret)
1347 goto err_btrfk;
1348 ret = pega_rfkill_setup(asus, &asus->wwanrfk, "pega-wwan", PEGA_WWAN, RFKILL_TYPE_WWAN);
1349 if(ret)
1350 goto err_wwanrfk;
1352 pr_warn("Pega rfkill init succeeded\n");
1353 return 0;
1354 err_wwanrfk:
1355 pega_rfkill_terminate(&asus->btrfk);
1356 err_btrfk:
1357 pega_rfkill_terminate(&asus->wlanrfk);
1359 return ret;
1363 * Input device (i.e. hotkeys)
1365 static void asus_input_notify(struct asus_laptop *asus, int event)
1367 if (asus->inputdev)
1368 sparse_keymap_report_event(asus->inputdev, event, 1, true);
1371 static int asus_input_init(struct asus_laptop *asus)
1373 struct input_dev *input;
1374 int error;
1376 input = input_allocate_device();
1377 if (!input) {
1378 pr_info("Unable to allocate input device\n");
1379 return -ENOMEM;
1381 input->name = "Asus Laptop extra buttons";
1382 input->phys = ASUS_LAPTOP_FILE "/input0";
1383 input->id.bustype = BUS_HOST;
1384 input->dev.parent = &asus->platform_device->dev;
1386 error = sparse_keymap_setup(input, asus_keymap, NULL);
1387 if (error) {
1388 pr_err("Unable to setup input device keymap\n");
1389 goto err_free_dev;
1391 error = input_register_device(input);
1392 if (error) {
1393 pr_info("Unable to register input device\n");
1394 goto err_free_keymap;
1397 asus->inputdev = input;
1398 return 0;
1400 err_free_keymap:
1401 sparse_keymap_free(input);
1402 err_free_dev:
1403 input_free_device(input);
1404 return error;
1407 static void asus_input_exit(struct asus_laptop *asus)
1409 if (asus->inputdev) {
1410 sparse_keymap_free(asus->inputdev);
1411 input_unregister_device(asus->inputdev);
1413 asus->inputdev = NULL;
1417 * ACPI driver
1419 static void asus_acpi_notify(struct acpi_device *device, u32 event)
1421 struct asus_laptop *asus = acpi_driver_data(device);
1422 u16 count;
1424 /* TODO Find a better way to handle events count. */
1425 count = asus->event_count[event % 128]++;
1426 acpi_bus_generate_proc_event(asus->device, event, count);
1427 acpi_bus_generate_netlink_event(asus->device->pnp.device_class,
1428 dev_name(&asus->device->dev), event,
1429 count);
1431 /* Brightness events are special */
1432 if (event >= ATKD_BR_MIN && event <= ATKD_BR_MAX) {
1434 /* Ignore them completely if the acpi video driver is used */
1435 if (asus->backlight_device != NULL) {
1436 /* Update the backlight device. */
1437 asus_backlight_notify(asus);
1439 return ;
1442 /* Accelerometer "coarse orientation change" event */
1443 if (asus->pega_accel_poll && event == 0xEA) {
1444 kobject_uevent(&asus->pega_accel_poll->input->dev.kobj,
1445 KOBJ_CHANGE);
1446 return ;
1449 asus_input_notify(asus, event);
1452 static DEVICE_ATTR(infos, S_IRUGO, show_infos, NULL);
1453 static DEVICE_ATTR(wlan, S_IRUGO | S_IWUSR, show_wlan, store_wlan);
1454 static DEVICE_ATTR(bluetooth, S_IRUGO | S_IWUSR,
1455 show_bluetooth, store_bluetooth);
1456 static DEVICE_ATTR(wimax, S_IRUGO | S_IWUSR, show_wimax, store_wimax);
1457 static DEVICE_ATTR(wwan, S_IRUGO | S_IWUSR, show_wwan, store_wwan);
1458 static DEVICE_ATTR(display, S_IWUSR, NULL, store_disp);
1459 static DEVICE_ATTR(ledd, S_IRUGO | S_IWUSR, show_ledd, store_ledd);
1460 static DEVICE_ATTR(ls_value, S_IRUGO, show_lsvalue, NULL);
1461 static DEVICE_ATTR(ls_level, S_IRUGO | S_IWUSR, show_lslvl, store_lslvl);
1462 static DEVICE_ATTR(ls_switch, S_IRUGO | S_IWUSR, show_lssw, store_lssw);
1463 static DEVICE_ATTR(gps, S_IRUGO | S_IWUSR, show_gps, store_gps);
1465 static struct attribute *asus_attributes[] = {
1466 &dev_attr_infos.attr,
1467 &dev_attr_wlan.attr,
1468 &dev_attr_bluetooth.attr,
1469 &dev_attr_wimax.attr,
1470 &dev_attr_wwan.attr,
1471 &dev_attr_display.attr,
1472 &dev_attr_ledd.attr,
1473 &dev_attr_ls_value.attr,
1474 &dev_attr_ls_level.attr,
1475 &dev_attr_ls_switch.attr,
1476 &dev_attr_gps.attr,
1477 NULL
1480 static umode_t asus_sysfs_is_visible(struct kobject *kobj,
1481 struct attribute *attr,
1482 int idx)
1484 struct device *dev = container_of(kobj, struct device, kobj);
1485 struct platform_device *pdev = to_platform_device(dev);
1486 struct asus_laptop *asus = platform_get_drvdata(pdev);
1487 acpi_handle handle = asus->handle;
1488 bool supported;
1490 if (asus->is_pega_lucid) {
1491 /* no ls_level interface on the Lucid */
1492 if (attr == &dev_attr_ls_switch.attr)
1493 supported = true;
1494 else if (attr == &dev_attr_ls_level.attr)
1495 supported = false;
1496 else
1497 goto normal;
1499 return supported;
1502 normal:
1503 if (attr == &dev_attr_wlan.attr) {
1504 supported = !acpi_check_handle(handle, METHOD_WLAN, NULL);
1506 } else if (attr == &dev_attr_bluetooth.attr) {
1507 supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL);
1509 } else if (attr == &dev_attr_display.attr) {
1510 supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL);
1512 } else if (attr == &dev_attr_wimax.attr) {
1513 supported =
1514 !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL);
1516 } else if (attr == &dev_attr_wwan.attr) {
1517 supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL);
1519 } else if (attr == &dev_attr_ledd.attr) {
1520 supported = !acpi_check_handle(handle, METHOD_LEDD, NULL);
1522 } else if (attr == &dev_attr_ls_switch.attr ||
1523 attr == &dev_attr_ls_level.attr) {
1524 supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) &&
1525 !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL);
1526 } else if (attr == &dev_attr_ls_value.attr) {
1527 supported = asus->is_pega_lucid;
1528 } else if (attr == &dev_attr_gps.attr) {
1529 supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) &&
1530 !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) &&
1531 !acpi_check_handle(handle, METHOD_GPS_STATUS, NULL);
1532 } else {
1533 supported = true;
1536 return supported ? attr->mode : 0;
1540 static const struct attribute_group asus_attr_group = {
1541 .is_visible = asus_sysfs_is_visible,
1542 .attrs = asus_attributes,
1545 static int asus_platform_init(struct asus_laptop *asus)
1547 int result;
1549 asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, -1);
1550 if (!asus->platform_device)
1551 return -ENOMEM;
1552 platform_set_drvdata(asus->platform_device, asus);
1554 result = platform_device_add(asus->platform_device);
1555 if (result)
1556 goto fail_platform_device;
1558 result = sysfs_create_group(&asus->platform_device->dev.kobj,
1559 &asus_attr_group);
1560 if (result)
1561 goto fail_sysfs;
1563 return 0;
1565 fail_sysfs:
1566 platform_device_del(asus->platform_device);
1567 fail_platform_device:
1568 platform_device_put(asus->platform_device);
1569 return result;
1572 static void asus_platform_exit(struct asus_laptop *asus)
1574 sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group);
1575 platform_device_unregister(asus->platform_device);
1578 static struct platform_driver platform_driver = {
1579 .driver = {
1580 .name = ASUS_LAPTOP_FILE,
1581 .owner = THIS_MODULE,
1586 * This function is used to initialize the context with right values. In this
1587 * method, we can make all the detection we want, and modify the asus_laptop
1588 * struct
1590 static int asus_laptop_get_info(struct asus_laptop *asus)
1592 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1593 union acpi_object *model = NULL;
1594 unsigned long long bsts_result, hwrs_result;
1595 char *string = NULL;
1596 acpi_status status;
1599 * Get DSDT headers early enough to allow for differentiating between
1600 * models, but late enough to allow acpi_bus_register_driver() to fail
1601 * before doing anything ACPI-specific. Should we encounter a machine,
1602 * which needs special handling (i.e. its hotkey device has a different
1603 * HID), this bit will be moved.
1605 status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info);
1606 if (ACPI_FAILURE(status))
1607 pr_warn("Couldn't get the DSDT table header\n");
1609 /* We have to write 0 on init this far for all ASUS models */
1610 if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) {
1611 pr_err("Hotkey initialization failed\n");
1612 return -ENODEV;
1615 /* This needs to be called for some laptops to init properly */
1616 status =
1617 acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result);
1618 if (ACPI_FAILURE(status))
1619 pr_warn("Error calling BSTS\n");
1620 else if (bsts_result)
1621 pr_notice("BSTS called, 0x%02x returned\n",
1622 (uint) bsts_result);
1624 /* This too ... */
1625 if (write_acpi_int(asus->handle, "CWAP", wapf))
1626 pr_err("Error calling CWAP(%d)\n", wapf);
1628 * Try to match the object returned by INIT to the specific model.
1629 * Handle every possible object (or the lack of thereof) the DSDT
1630 * writers might throw at us. When in trouble, we pass NULL to
1631 * asus_model_match() and try something completely different.
1633 if (buffer.pointer) {
1634 model = buffer.pointer;
1635 switch (model->type) {
1636 case ACPI_TYPE_STRING:
1637 string = model->string.pointer;
1638 break;
1639 case ACPI_TYPE_BUFFER:
1640 string = model->buffer.pointer;
1641 break;
1642 default:
1643 string = "";
1644 break;
1647 asus->name = kstrdup(string, GFP_KERNEL);
1648 if (!asus->name) {
1649 kfree(buffer.pointer);
1650 return -ENOMEM;
1653 if (*string)
1654 pr_notice(" %s model detected\n", string);
1657 * The HWRS method return informations about the hardware.
1658 * 0x80 bit is for WLAN, 0x100 for Bluetooth,
1659 * 0x40 for WWAN, 0x10 for WIMAX.
1660 * The significance of others is yet to be found.
1662 status =
1663 acpi_evaluate_integer(asus->handle, "HRWS", NULL, &hwrs_result);
1664 if (!ACPI_FAILURE(status))
1665 pr_notice(" HRWS returned %x", (int)hwrs_result);
1667 if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL))
1668 asus->have_rsts = true;
1670 kfree(model);
1672 return AE_OK;
1675 static int __devinit asus_acpi_init(struct asus_laptop *asus)
1677 int result = 0;
1679 result = acpi_bus_get_status(asus->device);
1680 if (result)
1681 return result;
1682 if (!asus->device->status.present) {
1683 pr_err("Hotkey device not present, aborting\n");
1684 return -ENODEV;
1687 result = asus_laptop_get_info(asus);
1688 if (result)
1689 return result;
1691 /* WLED and BLED are on by default */
1692 if (bluetooth_status >= 0)
1693 asus_bluetooth_set(asus, !!bluetooth_status);
1695 if (wlan_status >= 0)
1696 asus_wlan_set(asus, !!wlan_status);
1698 if (wimax_status >= 0)
1699 asus_wimax_set(asus, !!wimax_status);
1701 if (wwan_status >= 0)
1702 asus_wwan_set(asus, !!wwan_status);
1704 /* Keyboard Backlight is on by default */
1705 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL))
1706 asus_kled_set(asus, 1);
1708 /* LED display is off by default */
1709 asus->ledd_status = 0xFFF;
1711 /* Set initial values of light sensor and level */
1712 asus->light_switch = !!als_status;
1713 asus->light_level = 5; /* level 5 for sensor sensitivity */
1715 if (asus->is_pega_lucid) {
1716 asus_als_switch(asus, asus->light_switch);
1717 } else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) &&
1718 !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) {
1719 asus_als_switch(asus, asus->light_switch);
1720 asus_als_level(asus, asus->light_level);
1723 return result;
1726 static void __devinit asus_dmi_check(void)
1728 const char *model;
1730 model = dmi_get_system_info(DMI_PRODUCT_NAME);
1731 if (!model)
1732 return;
1734 /* On L1400B WLED control the sound card, don't mess with it ... */
1735 if (strncmp(model, "L1400B", 6) == 0) {
1736 wlan_status = -1;
1740 static bool asus_device_present;
1742 static int __devinit asus_acpi_add(struct acpi_device *device)
1744 struct asus_laptop *asus;
1745 int result;
1747 pr_notice("Asus Laptop Support version %s\n",
1748 ASUS_LAPTOP_VERSION);
1749 asus = kzalloc(sizeof(struct asus_laptop), GFP_KERNEL);
1750 if (!asus)
1751 return -ENOMEM;
1752 asus->handle = device->handle;
1753 strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME);
1754 strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS);
1755 device->driver_data = asus;
1756 asus->device = device;
1758 asus_dmi_check();
1760 result = asus_acpi_init(asus);
1761 if (result)
1762 goto fail_platform;
1765 * Need platform type detection first, then the platform
1766 * device. It is used as a parent for the sub-devices below.
1768 asus->is_pega_lucid = asus_check_pega_lucid(asus);
1769 result = asus_platform_init(asus);
1770 if (result)
1771 goto fail_platform;
1773 if (!acpi_video_backlight_support()) {
1774 result = asus_backlight_init(asus);
1775 if (result)
1776 goto fail_backlight;
1777 } else
1778 pr_info("Backlight controlled by ACPI video driver\n");
1780 result = asus_input_init(asus);
1781 if (result)
1782 goto fail_input;
1784 result = asus_led_init(asus);
1785 if (result)
1786 goto fail_led;
1788 result = asus_rfkill_init(asus);
1789 if (result)
1790 goto fail_rfkill;
1792 result = pega_accel_init(asus);
1793 if (result && result != -ENODEV)
1794 goto fail_pega_accel;
1796 result = pega_rfkill_init(asus);
1797 if (result && result != -ENODEV)
1798 goto fail_pega_rfkill;
1800 asus_device_present = true;
1801 return 0;
1803 fail_pega_rfkill:
1804 pega_accel_exit(asus);
1805 fail_pega_accel:
1806 asus_rfkill_exit(asus);
1807 fail_rfkill:
1808 asus_led_exit(asus);
1809 fail_led:
1810 asus_input_exit(asus);
1811 fail_input:
1812 asus_backlight_exit(asus);
1813 fail_backlight:
1814 asus_platform_exit(asus);
1815 fail_platform:
1816 kfree(asus->name);
1817 kfree(asus);
1819 return result;
1822 static int asus_acpi_remove(struct acpi_device *device, int type)
1824 struct asus_laptop *asus = acpi_driver_data(device);
1826 asus_backlight_exit(asus);
1827 asus_rfkill_exit(asus);
1828 asus_led_exit(asus);
1829 asus_input_exit(asus);
1830 pega_accel_exit(asus);
1831 pega_rfkill_exit(asus);
1832 asus_platform_exit(asus);
1834 kfree(asus->name);
1835 kfree(asus);
1836 return 0;
1839 static const struct acpi_device_id asus_device_ids[] = {
1840 {"ATK0100", 0},
1841 {"ATK0101", 0},
1842 {"", 0},
1844 MODULE_DEVICE_TABLE(acpi, asus_device_ids);
1846 static struct acpi_driver asus_acpi_driver = {
1847 .name = ASUS_LAPTOP_NAME,
1848 .class = ASUS_LAPTOP_CLASS,
1849 .owner = THIS_MODULE,
1850 .ids = asus_device_ids,
1851 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1852 .ops = {
1853 .add = asus_acpi_add,
1854 .remove = asus_acpi_remove,
1855 .notify = asus_acpi_notify,
1859 static int __init asus_laptop_init(void)
1861 int result;
1863 result = platform_driver_register(&platform_driver);
1864 if (result < 0)
1865 return result;
1867 result = acpi_bus_register_driver(&asus_acpi_driver);
1868 if (result < 0)
1869 goto fail_acpi_driver;
1870 if (!asus_device_present) {
1871 result = -ENODEV;
1872 goto fail_no_device;
1874 return 0;
1876 fail_no_device:
1877 acpi_bus_unregister_driver(&asus_acpi_driver);
1878 fail_acpi_driver:
1879 platform_driver_unregister(&platform_driver);
1880 return result;
1883 static void __exit asus_laptop_exit(void)
1885 acpi_bus_unregister_driver(&asus_acpi_driver);
1886 platform_driver_unregister(&platform_driver);
1889 module_init(asus_laptop_init);
1890 module_exit(asus_laptop_exit);