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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * asus-laptop.c - Asus Laptop Support
4 *
5 * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor
6 * Copyright (C) 2006-2007 Corentin Chary
7 * Copyright (C) 2011 Wind River Systems
8 *
9 * The development page for this driver is located at
10 * http://sourceforge.net/projects/acpi4asus/
11 *
12 * Credits:
13 * Pontus Fuchs - Helper functions, cleanup
14 * Johann Wiesner - Small compile fixes
15 * John Belmonte - ACPI code for Toshiba laptop was a good starting point.
16 * Eric Burghard - LED display support for W1N
17 * Josh Green - Light Sens support
18 * Thomas Tuttle - His first patch for led support was very helpful
19 * Sam Lin - GPS support
20 */
21
22#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
23
24#include <linux/kernel.h>
25#include <linux/module.h>
26#include <linux/init.h>
27#include <linux/types.h>
28#include <linux/err.h>
29#include <linux/proc_fs.h>
30#include <linux/backlight.h>
31#include <linux/fb.h>
32#include <linux/leds.h>
33#include <linux/platform_device.h>
34#include <linux/uaccess.h>
35#include <linux/input.h>
36#include <linux/input/sparse-keymap.h>
37#include <linux/rfkill.h>
38#include <linux/slab.h>
39#include <linux/dmi.h>
40#include <linux/acpi.h>
41#include <acpi/video.h>
42
43#define ASUS_LAPTOP_VERSION "0.42"
44
45#define ASUS_LAPTOP_NAME "Asus Laptop Support"
46#define ASUS_LAPTOP_CLASS "hotkey"
47#define ASUS_LAPTOP_DEVICE_NAME "Hotkey"
48#define ASUS_LAPTOP_FILE KBUILD_MODNAME
49#define ASUS_LAPTOP_PREFIX "\\_SB.ATKD."
50
51MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary");
52MODULE_DESCRIPTION(ASUS_LAPTOP_NAME);
53MODULE_LICENSE("GPL");
54
55/*
56 * WAPF defines the behavior of the Fn+Fx wlan key
57 * The significance of values is yet to be found, but
58 * most of the time:
59 * Bit | Bluetooth | WLAN
60 * 0 | Hardware | Hardware
61 * 1 | Hardware | Software
62 * 4 | Software | Software
63 */
64static uint wapf = 1;
65module_param(wapf, uint, 0444);
66MODULE_PARM_DESC(wapf, "WAPF value");
67
68static char *wled_type = "unknown";
69static char *bled_type = "unknown";
70
71module_param(wled_type, charp, 0444);
72MODULE_PARM_DESC(wled_type, "Set the wled type on boot "
73 "(unknown, led or rfkill). "
74 "default is unknown");
75
76module_param(bled_type, charp, 0444);
77MODULE_PARM_DESC(bled_type, "Set the bled type on boot "
78 "(unknown, led or rfkill). "
79 "default is unknown");
80
81static int wlan_status = 1;
82static int bluetooth_status = 1;
83static int wimax_status = -1;
84static int wwan_status = -1;
85static int als_status;
86
87module_param(wlan_status, int, 0444);
88MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot "
89 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
90 "default is -1");
91
92module_param(bluetooth_status, int, 0444);
93MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot "
94 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
95 "default is -1");
96
97module_param(wimax_status, int, 0444);
98MODULE_PARM_DESC(wimax_status, "Set the wireless status on boot "
99 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
100 "default is -1");
101
102module_param(wwan_status, int, 0444);
103MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot "
104 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
105 "default is -1");
106
107module_param(als_status, int, 0444);
108MODULE_PARM_DESC(als_status, "Set the ALS status on boot "
109 "(0 = disabled, 1 = enabled). "
110 "default is 0");
111
112/*
113 * Some events we use, same for all Asus
114 */
115#define ATKD_BRNUP_MIN 0x10
116#define ATKD_BRNUP_MAX 0x1f
117#define ATKD_BRNDOWN_MIN 0x20
118#define ATKD_BRNDOWN_MAX 0x2f
119#define ATKD_BRNDOWN 0x20
120#define ATKD_BRNUP 0x2f
121#define ATKD_LCD_ON 0x33
122#define ATKD_LCD_OFF 0x34
123
124/*
125 * Known bits returned by \_SB.ATKD.HWRS
126 */
127#define WL_HWRS 0x80
128#define BT_HWRS 0x100
129
130/*
131 * Flags for hotk status
132 * WL_ON and BT_ON are also used for wireless_status()
133 */
134#define WL_RSTS 0x01 /* internal Wifi */
135#define BT_RSTS 0x02 /* internal Bluetooth */
136#define WM_RSTS 0x08 /* internal wimax */
137#define WW_RSTS 0x20 /* internal wwan */
138
139/* WLED and BLED type */
140#define TYPE_UNKNOWN 0
141#define TYPE_LED 1
142#define TYPE_RFKILL 2
143
144/* LED */
145#define METHOD_MLED "MLED"
146#define METHOD_TLED "TLED"
147#define METHOD_RLED "RLED" /* W1JC */
148#define METHOD_PLED "PLED" /* A7J */
149#define METHOD_GLED "GLED" /* G1, G2 (probably) */
150
151/* LEDD */
152#define METHOD_LEDD "SLCM"
153
154/*
155 * Bluetooth and WLAN
156 * WLED and BLED are not handled like other XLED, because in some dsdt
157 * they also control the WLAN/Bluetooth device.
158 */
159#define METHOD_WLAN "WLED"
160#define METHOD_BLUETOOTH "BLED"
161
162/* WWAN and WIMAX */
163#define METHOD_WWAN "GSMC"
164#define METHOD_WIMAX "WMXC"
165
166#define METHOD_WL_STATUS "RSTS"
167
168/* Brightness */
169#define METHOD_BRIGHTNESS_SET "SPLV"
170#define METHOD_BRIGHTNESS_GET "GPLV"
171
172/* Display */
173#define METHOD_SWITCH_DISPLAY "SDSP"
174
175#define METHOD_ALS_CONTROL "ALSC" /* Z71A Z71V */
176#define METHOD_ALS_LEVEL "ALSL" /* Z71A Z71V */
177
178/* GPS */
179/* R2H use different handle for GPS on/off */
180#define METHOD_GPS_ON "SDON"
181#define METHOD_GPS_OFF "SDOF"
182#define METHOD_GPS_STATUS "GPST"
183
184/* Keyboard light */
185#define METHOD_KBD_LIGHT_SET "SLKB"
186#define METHOD_KBD_LIGHT_GET "GLKB"
187
188/* For Pegatron Lucid tablet */
189#define DEVICE_NAME_PEGA "Lucid"
190
191#define METHOD_PEGA_ENABLE "ENPR"
192#define METHOD_PEGA_DISABLE "DAPR"
193#define PEGA_WLAN 0x00
194#define PEGA_BLUETOOTH 0x01
195#define PEGA_WWAN 0x02
196#define PEGA_ALS 0x04
197#define PEGA_ALS_POWER 0x05
198
199#define METHOD_PEGA_READ "RDLN"
200#define PEGA_READ_ALS_H 0x02
201#define PEGA_READ_ALS_L 0x03
202
203#define PEGA_ACCEL_NAME "pega_accel"
204#define PEGA_ACCEL_DESC "Pegatron Lucid Tablet Accelerometer"
205#define METHOD_XLRX "XLRX"
206#define METHOD_XLRY "XLRY"
207#define METHOD_XLRZ "XLRZ"
208#define PEGA_ACC_CLAMP 512 /* 1G accel is reported as ~256, so clamp to 2G */
209#define PEGA_ACC_RETRIES 3
210
211/*
212 * Define a specific led structure to keep the main structure clean
213 */
214struct asus_led {
215 int wk;
216 struct work_struct work;
217 struct led_classdev led;
218 struct asus_laptop *asus;
219 const char *method;
220};
221
222/*
223 * Same thing for rfkill
224 */
225struct asus_rfkill {
226 /* type of control. Maps to PEGA_* values or *_RSTS */
227 int control_id;
228 struct rfkill *rfkill;
229 struct asus_laptop *asus;
230};
231
232/*
233 * This is the main structure, we can use it to store anything interesting
234 * about the hotk device
235 */
236struct asus_laptop {
237 char *name; /* laptop name */
238
239 struct acpi_table_header *dsdt_info;
240 struct platform_device *platform_device;
241 struct acpi_device *device; /* the device we are in */
242 struct backlight_device *backlight_device;
243
244 struct input_dev *inputdev;
245 struct key_entry *keymap;
246 struct input_dev *pega_accel_poll;
247
248 struct asus_led wled;
249 struct asus_led bled;
250 struct asus_led mled;
251 struct asus_led tled;
252 struct asus_led rled;
253 struct asus_led pled;
254 struct asus_led gled;
255 struct asus_led kled;
256 struct workqueue_struct *led_workqueue;
257
258 int wled_type;
259 int bled_type;
260 int wireless_status;
261 bool have_rsts;
262 bool is_pega_lucid;
263 bool pega_acc_live;
264 int pega_acc_x;
265 int pega_acc_y;
266 int pega_acc_z;
267
268 struct asus_rfkill wlan;
269 struct asus_rfkill bluetooth;
270 struct asus_rfkill wwan;
271 struct asus_rfkill wimax;
272 struct asus_rfkill gps;
273
274 acpi_handle handle; /* the handle of the hotk device */
275 u32 ledd_status; /* status of the LED display */
276 u8 light_level; /* light sensor level */
277 u8 light_switch; /* light sensor switch value */
278 u16 event_count[128]; /* count for each event TODO make this better */
279};
280
281static const struct key_entry asus_keymap[] = {
282 /* Lenovo SL Specific keycodes */
283 {KE_KEY, 0x02, { KEY_SCREENLOCK } },
284 {KE_KEY, 0x05, { KEY_WLAN } },
285 {KE_KEY, 0x08, { KEY_F13 } },
286 {KE_KEY, 0x09, { KEY_PROG2 } }, /* Dock */
287 {KE_KEY, 0x17, { KEY_ZOOM } },
288 {KE_KEY, 0x1f, { KEY_BATTERY } },
289 /* End of Lenovo SL Specific keycodes */
290 {KE_KEY, ATKD_BRNDOWN, { KEY_BRIGHTNESSDOWN } },
291 {KE_KEY, ATKD_BRNUP, { KEY_BRIGHTNESSUP } },
292 {KE_KEY, 0x30, { KEY_VOLUMEUP } },
293 {KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
294 {KE_KEY, 0x32, { KEY_MUTE } },
295 {KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
296 {KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
297 {KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
298 {KE_KEY, 0x41, { KEY_NEXTSONG } },
299 {KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
300 {KE_KEY, 0x45, { KEY_PLAYPAUSE } },
301 {KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
302 {KE_KEY, 0x50, { KEY_EMAIL } },
303 {KE_KEY, 0x51, { KEY_WWW } },
304 {KE_KEY, 0x55, { KEY_CALC } },
305 {KE_IGNORE, 0x57, }, /* Battery mode */
306 {KE_IGNORE, 0x58, }, /* AC mode */
307 {KE_KEY, 0x5C, { KEY_SCREENLOCK } }, /* Screenlock */
308 {KE_KEY, 0x5D, { KEY_WLAN } }, /* WLAN Toggle */
309 {KE_KEY, 0x5E, { KEY_WLAN } }, /* WLAN Enable */
310 {KE_KEY, 0x5F, { KEY_WLAN } }, /* WLAN Disable */
311 {KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
312 {KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
313 {KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
314 {KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
315 {KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
316 {KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
317 {KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
318 {KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
319 {KE_KEY, 0x6A, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad Fn + F9 */
320 {KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad */
321 {KE_KEY, 0x6C, { KEY_SLEEP } }, /* Suspend */
322 {KE_KEY, 0x6D, { KEY_SLEEP } }, /* Hibernate */
323 {KE_IGNORE, 0x6E, }, /* Low Battery notification */
324 {KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
325 {KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
326 {KE_KEY, 0x82, { KEY_CAMERA } },
327 {KE_KEY, 0x88, { KEY_RFKILL } }, /* Radio Toggle Key */
328 {KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
329 {KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
330 {KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
331 {KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
332 {KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
333 {KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
334 {KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
335 {KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
336 {KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
337 {KE_KEY, 0x95, { KEY_MEDIA } },
338 {KE_KEY, 0x99, { KEY_PHONE } },
339 {KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
340 {KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
341 {KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
342 {KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
343 {KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
344 {KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
345 {KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
346 {KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
347 {KE_KEY, 0xB5, { KEY_CALC } },
348 {KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
349 {KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
350 {KE_END, 0},
351};
352
353
354/*
355 * This function evaluates an ACPI method, given an int as parameter, the
356 * method is searched within the scope of the handle, can be NULL. The output
357 * of the method is written is output, which can also be NULL
358 *
359 * returns 0 if write is successful, -1 else.
360 */
361static int write_acpi_int_ret(acpi_handle handle, const char *method, int val,
362 struct acpi_buffer *output)
363{
364 struct acpi_object_list params; /* list of input parameters (an int) */
365 union acpi_object in_obj; /* the only param we use */
366 acpi_status status;
367
368 if (!handle)
369 return -1;
370
371 params.count = 1;
372 params.pointer = &in_obj;
373 in_obj.type = ACPI_TYPE_INTEGER;
374 in_obj.integer.value = val;
375
376 status = acpi_evaluate_object(handle, (char *)method, ¶ms, output);
377 if (status == AE_OK)
378 return 0;
379 else
380 return -1;
381}
382
383static int write_acpi_int(acpi_handle handle, const char *method, int val)
384{
385 return write_acpi_int_ret(handle, method, val, NULL);
386}
387
388static int acpi_check_handle(acpi_handle handle, const char *method,
389 acpi_handle *ret)
390{
391 acpi_status status;
392
393 if (method == NULL)
394 return -ENODEV;
395
396 if (ret)
397 status = acpi_get_handle(handle, (char *)method,
398 ret);
399 else {
400 acpi_handle dummy;
401
402 status = acpi_get_handle(handle, (char *)method,
403 &dummy);
404 }
405
406 if (status != AE_OK) {
407 if (ret)
408 pr_warn("Error finding %s\n", method);
409 return -ENODEV;
410 }
411 return 0;
412}
413
414static bool asus_check_pega_lucid(struct asus_laptop *asus)
415{
416 return !strcmp(asus->name, DEVICE_NAME_PEGA) &&
417 !acpi_check_handle(asus->handle, METHOD_PEGA_ENABLE, NULL) &&
418 !acpi_check_handle(asus->handle, METHOD_PEGA_DISABLE, NULL) &&
419 !acpi_check_handle(asus->handle, METHOD_PEGA_READ, NULL);
420}
421
422static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable)
423{
424 char *method = enable ? METHOD_PEGA_ENABLE : METHOD_PEGA_DISABLE;
425 return write_acpi_int(asus->handle, method, unit);
426}
427
428static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method)
429{
430 int i, delta;
431 unsigned long long val;
432 for (i = 0; i < PEGA_ACC_RETRIES; i++) {
433 acpi_evaluate_integer(asus->handle, method, NULL, &val);
434
435 /* The output is noisy. From reading the ASL
436 * dissassembly, timeout errors are returned with 1's
437 * in the high word, and the lack of locking around
438 * thei hi/lo byte reads means that a transition
439 * between (for example) -1 and 0 could be read as
440 * 0xff00 or 0x00ff. */
441 delta = abs(curr - (short)val);
442 if (delta < 128 && !(val & ~0xffff))
443 break;
444 }
445 return clamp_val((short)val, -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP);
446}
447
448static void pega_accel_poll(struct input_dev *input)
449{
450 struct device *parent = input->dev.parent;
451 struct asus_laptop *asus = dev_get_drvdata(parent);
452
453 /* In some cases, the very first call to poll causes a
454 * recursive fault under the polldev worker. This is
455 * apparently related to very early userspace access to the
456 * device, and perhaps a firmware bug. Fake the first report. */
457 if (!asus->pega_acc_live) {
458 asus->pega_acc_live = true;
459 input_report_abs(input, ABS_X, 0);
460 input_report_abs(input, ABS_Y, 0);
461 input_report_abs(input, ABS_Z, 0);
462 input_sync(input);
463 return;
464 }
465
466 asus->pega_acc_x = pega_acc_axis(asus, asus->pega_acc_x, METHOD_XLRX);
467 asus->pega_acc_y = pega_acc_axis(asus, asus->pega_acc_y, METHOD_XLRY);
468 asus->pega_acc_z = pega_acc_axis(asus, asus->pega_acc_z, METHOD_XLRZ);
469
470 /* Note transform, convert to "right/up/out" in the native
471 * landscape orientation (i.e. the vector is the direction of
472 * "real up" in the device's cartiesian coordinates). */
473 input_report_abs(input, ABS_X, -asus->pega_acc_x);
474 input_report_abs(input, ABS_Y, -asus->pega_acc_y);
475 input_report_abs(input, ABS_Z, asus->pega_acc_z);
476 input_sync(input);
477}
478
479static void pega_accel_exit(struct asus_laptop *asus)
480{
481 if (asus->pega_accel_poll) {
482 input_unregister_device(asus->pega_accel_poll);
483 asus->pega_accel_poll = NULL;
484 }
485}
486
487static int pega_accel_init(struct asus_laptop *asus)
488{
489 int err;
490 struct input_dev *input;
491
492 if (!asus->is_pega_lucid)
493 return -ENODEV;
494
495 if (acpi_check_handle(asus->handle, METHOD_XLRX, NULL) ||
496 acpi_check_handle(asus->handle, METHOD_XLRY, NULL) ||
497 acpi_check_handle(asus->handle, METHOD_XLRZ, NULL))
498 return -ENODEV;
499
500 input = input_allocate_device();
501 if (!input)
502 return -ENOMEM;
503
504 input->name = PEGA_ACCEL_DESC;
505 input->phys = PEGA_ACCEL_NAME "/input0";
506 input->dev.parent = &asus->platform_device->dev;
507 input->id.bustype = BUS_HOST;
508
509 input_set_abs_params(input, ABS_X,
510 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
511 input_set_abs_params(input, ABS_Y,
512 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
513 input_set_abs_params(input, ABS_Z,
514 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
515
516 err = input_setup_polling(input, pega_accel_poll);
517 if (err)
518 goto exit;
519
520 input_set_poll_interval(input, 125);
521 input_set_min_poll_interval(input, 50);
522 input_set_max_poll_interval(input, 2000);
523
524 err = input_register_device(input);
525 if (err)
526 goto exit;
527
528 asus->pega_accel_poll = input;
529 return 0;
530
531exit:
532 input_free_device(input);
533 return err;
534}
535
536/* Generic LED function */
537static int asus_led_set(struct asus_laptop *asus, const char *method,
538 int value)
539{
540 if (!strcmp(method, METHOD_MLED))
541 value = !value;
542 else if (!strcmp(method, METHOD_GLED))
543 value = !value + 1;
544 else
545 value = !!value;
546
547 return write_acpi_int(asus->handle, method, value);
548}
549
550/*
551 * LEDs
552 */
553/* /sys/class/led handlers */
554static void asus_led_cdev_set(struct led_classdev *led_cdev,
555 enum led_brightness value)
556{
557 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
558 struct asus_laptop *asus = led->asus;
559
560 led->wk = !!value;
561 queue_work(asus->led_workqueue, &led->work);
562}
563
564static void asus_led_cdev_update(struct work_struct *work)
565{
566 struct asus_led *led = container_of(work, struct asus_led, work);
567 struct asus_laptop *asus = led->asus;
568
569 asus_led_set(asus, led->method, led->wk);
570}
571
572static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev)
573{
574 return led_cdev->brightness;
575}
576
577/*
578 * Keyboard backlight (also a LED)
579 */
580static int asus_kled_lvl(struct asus_laptop *asus)
581{
582 unsigned long long kblv;
583 struct acpi_object_list params;
584 union acpi_object in_obj;
585 acpi_status rv;
586
587 params.count = 1;
588 params.pointer = &in_obj;
589 in_obj.type = ACPI_TYPE_INTEGER;
590 in_obj.integer.value = 2;
591
592 rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET,
593 ¶ms, &kblv);
594 if (ACPI_FAILURE(rv)) {
595 pr_warn("Error reading kled level\n");
596 return -ENODEV;
597 }
598 return kblv;
599}
600
601static int asus_kled_set(struct asus_laptop *asus, int kblv)
602{
603 if (kblv > 0)
604 kblv = (1 << 7) | (kblv & 0x7F);
605 else
606 kblv = 0;
607
608 if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) {
609 pr_warn("Keyboard LED display write failed\n");
610 return -EINVAL;
611 }
612 return 0;
613}
614
615static void asus_kled_cdev_set(struct led_classdev *led_cdev,
616 enum led_brightness value)
617{
618 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
619 struct asus_laptop *asus = led->asus;
620
621 led->wk = value;
622 queue_work(asus->led_workqueue, &led->work);
623}
624
625static void asus_kled_cdev_update(struct work_struct *work)
626{
627 struct asus_led *led = container_of(work, struct asus_led, work);
628 struct asus_laptop *asus = led->asus;
629
630 asus_kled_set(asus, led->wk);
631}
632
633static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev)
634{
635 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
636 struct asus_laptop *asus = led->asus;
637
638 return asus_kled_lvl(asus);
639}
640
641static void asus_led_exit(struct asus_laptop *asus)
642{
643 led_classdev_unregister(&asus->wled.led);
644 led_classdev_unregister(&asus->bled.led);
645 led_classdev_unregister(&asus->mled.led);
646 led_classdev_unregister(&asus->tled.led);
647 led_classdev_unregister(&asus->pled.led);
648 led_classdev_unregister(&asus->rled.led);
649 led_classdev_unregister(&asus->gled.led);
650 led_classdev_unregister(&asus->kled.led);
651
652 if (asus->led_workqueue) {
653 destroy_workqueue(asus->led_workqueue);
654 asus->led_workqueue = NULL;
655 }
656}
657
658/* Ugly macro, need to fix that later */
659static int asus_led_register(struct asus_laptop *asus,
660 struct asus_led *led,
661 const char *name, const char *method)
662{
663 struct led_classdev *led_cdev = &led->led;
664
665 if (!method || acpi_check_handle(asus->handle, method, NULL))
666 return 0; /* Led not present */
667
668 led->asus = asus;
669 led->method = method;
670
671 INIT_WORK(&led->work, asus_led_cdev_update);
672 led_cdev->name = name;
673 led_cdev->brightness_set = asus_led_cdev_set;
674 led_cdev->brightness_get = asus_led_cdev_get;
675 led_cdev->max_brightness = 1;
676 return led_classdev_register(&asus->platform_device->dev, led_cdev);
677}
678
679static int asus_led_init(struct asus_laptop *asus)
680{
681 int r = 0;
682
683 /*
684 * The Pegatron Lucid has no physical leds, but all methods are
685 * available in the DSDT...
686 */
687 if (asus->is_pega_lucid)
688 return 0;
689
690 /*
691 * Functions that actually update the LED's are called from a
692 * workqueue. By doing this as separate work rather than when the LED
693 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
694 * potentially bad time, such as a timer interrupt.
695 */
696 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
697 if (!asus->led_workqueue)
698 return -ENOMEM;
699
700 if (asus->wled_type == TYPE_LED)
701 r = asus_led_register(asus, &asus->wled, "asus::wlan",
702 METHOD_WLAN);
703 if (r)
704 goto error;
705 if (asus->bled_type == TYPE_LED)
706 r = asus_led_register(asus, &asus->bled, "asus::bluetooth",
707 METHOD_BLUETOOTH);
708 if (r)
709 goto error;
710 r = asus_led_register(asus, &asus->mled, "asus::mail", METHOD_MLED);
711 if (r)
712 goto error;
713 r = asus_led_register(asus, &asus->tled, "asus::touchpad", METHOD_TLED);
714 if (r)
715 goto error;
716 r = asus_led_register(asus, &asus->rled, "asus::record", METHOD_RLED);
717 if (r)
718 goto error;
719 r = asus_led_register(asus, &asus->pled, "asus::phone", METHOD_PLED);
720 if (r)
721 goto error;
722 r = asus_led_register(asus, &asus->gled, "asus::gaming", METHOD_GLED);
723 if (r)
724 goto error;
725 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL) &&
726 !acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL)) {
727 struct asus_led *led = &asus->kled;
728 struct led_classdev *cdev = &led->led;
729
730 led->asus = asus;
731
732 INIT_WORK(&led->work, asus_kled_cdev_update);
733 cdev->name = "asus::kbd_backlight";
734 cdev->brightness_set = asus_kled_cdev_set;
735 cdev->brightness_get = asus_kled_cdev_get;
736 cdev->max_brightness = 3;
737 r = led_classdev_register(&asus->platform_device->dev, cdev);
738 }
739error:
740 if (r)
741 asus_led_exit(asus);
742 return r;
743}
744
745/*
746 * Backlight device
747 */
748static int asus_read_brightness(struct backlight_device *bd)
749{
750 struct asus_laptop *asus = bl_get_data(bd);
751 unsigned long long value;
752 acpi_status rv;
753
754 rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET,
755 NULL, &value);
756 if (ACPI_FAILURE(rv)) {
757 pr_warn("Error reading brightness\n");
758 return 0;
759 }
760
761 return value;
762}
763
764static int asus_set_brightness(struct backlight_device *bd, int value)
765{
766 struct asus_laptop *asus = bl_get_data(bd);
767
768 if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) {
769 pr_warn("Error changing brightness\n");
770 return -EIO;
771 }
772 return 0;
773}
774
775static int update_bl_status(struct backlight_device *bd)
776{
777 int value = bd->props.brightness;
778
779 return asus_set_brightness(bd, value);
780}
781
782static const struct backlight_ops asusbl_ops = {
783 .get_brightness = asus_read_brightness,
784 .update_status = update_bl_status,
785};
786
787static int asus_backlight_notify(struct asus_laptop *asus)
788{
789 struct backlight_device *bd = asus->backlight_device;
790 int old = bd->props.brightness;
791
792 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
793
794 return old;
795}
796
797static int asus_backlight_init(struct asus_laptop *asus)
798{
799 struct backlight_device *bd;
800 struct backlight_properties props;
801
802 if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) ||
803 acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL))
804 return 0;
805
806 memset(&props, 0, sizeof(struct backlight_properties));
807 props.max_brightness = 15;
808 props.type = BACKLIGHT_PLATFORM;
809
810 bd = backlight_device_register(ASUS_LAPTOP_FILE,
811 &asus->platform_device->dev, asus,
812 &asusbl_ops, &props);
813 if (IS_ERR(bd)) {
814 pr_err("Could not register asus backlight device\n");
815 asus->backlight_device = NULL;
816 return PTR_ERR(bd);
817 }
818
819 asus->backlight_device = bd;
820 bd->props.brightness = asus_read_brightness(bd);
821 bd->props.power = FB_BLANK_UNBLANK;
822 backlight_update_status(bd);
823 return 0;
824}
825
826static void asus_backlight_exit(struct asus_laptop *asus)
827{
828 backlight_device_unregister(asus->backlight_device);
829 asus->backlight_device = NULL;
830}
831
832/*
833 * Platform device handlers
834 */
835
836/*
837 * We write our info in page, we begin at offset off and cannot write more
838 * than count bytes. We set eof to 1 if we handle those 2 values. We return the
839 * number of bytes written in page
840 */
841static ssize_t infos_show(struct device *dev, struct device_attribute *attr,
842 char *page)
843{
844 struct asus_laptop *asus = dev_get_drvdata(dev);
845 int len = 0;
846 unsigned long long temp;
847 char buf[16]; /* enough for all info */
848 acpi_status rv;
849
850 /*
851 * We use the easy way, we don't care of off and count,
852 * so we don't set eof to 1
853 */
854
855 len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n");
856 len += sprintf(page + len, "Model reference : %s\n", asus->name);
857 /*
858 * The SFUN method probably allows the original driver to get the list
859 * of features supported by a given model. For now, 0x0100 or 0x0800
860 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
861 * The significance of others is yet to be found.
862 */
863 rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp);
864 if (ACPI_SUCCESS(rv))
865 len += sprintf(page + len, "SFUN value : %#x\n",
866 (uint) temp);
867 /*
868 * The HWRS method return informations about the hardware.
869 * 0x80 bit is for WLAN, 0x100 for Bluetooth.
870 * 0x40 for WWAN, 0x10 for WIMAX.
871 * The significance of others is yet to be found.
872 * We don't currently use this for device detection, and it
873 * takes several seconds to run on some systems.
874 */
875 rv = acpi_evaluate_integer(asus->handle, "HWRS", NULL, &temp);
876 if (ACPI_SUCCESS(rv))
877 len += sprintf(page + len, "HWRS value : %#x\n",
878 (uint) temp);
879 /*
880 * Another value for userspace: the ASYM method returns 0x02 for
881 * battery low and 0x04 for battery critical, its readings tend to be
882 * more accurate than those provided by _BST.
883 * Note: since not all the laptops provide this method, errors are
884 * silently ignored.
885 */
886 rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp);
887 if (ACPI_SUCCESS(rv))
888 len += sprintf(page + len, "ASYM value : %#x\n",
889 (uint) temp);
890 if (asus->dsdt_info) {
891 snprintf(buf, 16, "%d", asus->dsdt_info->length);
892 len += sprintf(page + len, "DSDT length : %s\n", buf);
893 snprintf(buf, 16, "%d", asus->dsdt_info->checksum);
894 len += sprintf(page + len, "DSDT checksum : %s\n", buf);
895 snprintf(buf, 16, "%d", asus->dsdt_info->revision);
896 len += sprintf(page + len, "DSDT revision : %s\n", buf);
897 snprintf(buf, 7, "%s", asus->dsdt_info->oem_id);
898 len += sprintf(page + len, "OEM id : %s\n", buf);
899 snprintf(buf, 9, "%s", asus->dsdt_info->oem_table_id);
900 len += sprintf(page + len, "OEM table id : %s\n", buf);
901 snprintf(buf, 16, "%x", asus->dsdt_info->oem_revision);
902 len += sprintf(page + len, "OEM revision : 0x%s\n", buf);
903 snprintf(buf, 5, "%s", asus->dsdt_info->asl_compiler_id);
904 len += sprintf(page + len, "ASL comp vendor id : %s\n", buf);
905 snprintf(buf, 16, "%x", asus->dsdt_info->asl_compiler_revision);
906 len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf);
907 }
908
909 return len;
910}
911static DEVICE_ATTR_RO(infos);
912
913static ssize_t sysfs_acpi_set(struct asus_laptop *asus,
914 const char *buf, size_t count,
915 const char *method)
916{
917 int rv, value;
918
919 rv = kstrtoint(buf, 0, &value);
920 if (rv < 0)
921 return rv;
922
923 if (write_acpi_int(asus->handle, method, value))
924 return -ENODEV;
925 return count;
926}
927
928/*
929 * LEDD display
930 */
931static ssize_t ledd_show(struct device *dev, struct device_attribute *attr,
932 char *buf)
933{
934 struct asus_laptop *asus = dev_get_drvdata(dev);
935
936 return sprintf(buf, "0x%08x\n", asus->ledd_status);
937}
938
939static ssize_t ledd_store(struct device *dev, struct device_attribute *attr,
940 const char *buf, size_t count)
941{
942 struct asus_laptop *asus = dev_get_drvdata(dev);
943 int rv, value;
944
945 rv = kstrtoint(buf, 0, &value);
946 if (rv < 0)
947 return rv;
948
949 if (write_acpi_int(asus->handle, METHOD_LEDD, value)) {
950 pr_warn("LED display write failed\n");
951 return -ENODEV;
952 }
953
954 asus->ledd_status = (u32) value;
955 return count;
956}
957static DEVICE_ATTR_RW(ledd);
958
959/*
960 * Wireless
961 */
962static int asus_wireless_status(struct asus_laptop *asus, int mask)
963{
964 unsigned long long status;
965 acpi_status rv = AE_OK;
966
967 if (!asus->have_rsts)
968 return (asus->wireless_status & mask) ? 1 : 0;
969
970 rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS,
971 NULL, &status);
972 if (ACPI_FAILURE(rv)) {
973 pr_warn("Error reading Wireless status\n");
974 return -EINVAL;
975 }
976 return !!(status & mask);
977}
978
979/*
980 * WLAN
981 */
982static int asus_wlan_set(struct asus_laptop *asus, int status)
983{
984 if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) {
985 pr_warn("Error setting wlan status to %d\n", status);
986 return -EIO;
987 }
988 return 0;
989}
990
991static ssize_t wlan_show(struct device *dev, struct device_attribute *attr,
992 char *buf)
993{
994 struct asus_laptop *asus = dev_get_drvdata(dev);
995
996 return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS));
997}
998
999static ssize_t wlan_store(struct device *dev, struct device_attribute *attr,
1000 const char *buf, size_t count)
1001{
1002 struct asus_laptop *asus = dev_get_drvdata(dev);
1003
1004 return sysfs_acpi_set(asus, buf, count, METHOD_WLAN);
1005}
1006static DEVICE_ATTR_RW(wlan);
1007
1008/*e
1009 * Bluetooth
1010 */
1011static int asus_bluetooth_set(struct asus_laptop *asus, int status)
1012{
1013 if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) {
1014 pr_warn("Error setting bluetooth status to %d\n", status);
1015 return -EIO;
1016 }
1017 return 0;
1018}
1019
1020static ssize_t bluetooth_show(struct device *dev, struct device_attribute *attr,
1021 char *buf)
1022{
1023 struct asus_laptop *asus = dev_get_drvdata(dev);
1024
1025 return sprintf(buf, "%d\n", asus_wireless_status(asus, BT_RSTS));
1026}
1027
1028static ssize_t bluetooth_store(struct device *dev,
1029 struct device_attribute *attr, const char *buf,
1030 size_t count)
1031{
1032 struct asus_laptop *asus = dev_get_drvdata(dev);
1033
1034 return sysfs_acpi_set(asus, buf, count, METHOD_BLUETOOTH);
1035}
1036static DEVICE_ATTR_RW(bluetooth);
1037
1038/*
1039 * Wimax
1040 */
1041static int asus_wimax_set(struct asus_laptop *asus, int status)
1042{
1043 if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) {
1044 pr_warn("Error setting wimax status to %d\n", status);
1045 return -EIO;
1046 }
1047 return 0;
1048}
1049
1050static ssize_t wimax_show(struct device *dev, struct device_attribute *attr,
1051 char *buf)
1052{
1053 struct asus_laptop *asus = dev_get_drvdata(dev);
1054
1055 return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS));
1056}
1057
1058static ssize_t wimax_store(struct device *dev, struct device_attribute *attr,
1059 const char *buf, size_t count)
1060{
1061 struct asus_laptop *asus = dev_get_drvdata(dev);
1062
1063 return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX);
1064}
1065static DEVICE_ATTR_RW(wimax);
1066
1067/*
1068 * Wwan
1069 */
1070static int asus_wwan_set(struct asus_laptop *asus, int status)
1071{
1072 if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) {
1073 pr_warn("Error setting wwan status to %d\n", status);
1074 return -EIO;
1075 }
1076 return 0;
1077}
1078
1079static ssize_t wwan_show(struct device *dev, struct device_attribute *attr,
1080 char *buf)
1081{
1082 struct asus_laptop *asus = dev_get_drvdata(dev);
1083
1084 return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS));
1085}
1086
1087static ssize_t wwan_store(struct device *dev, struct device_attribute *attr,
1088 const char *buf, size_t count)
1089{
1090 struct asus_laptop *asus = dev_get_drvdata(dev);
1091
1092 return sysfs_acpi_set(asus, buf, count, METHOD_WWAN);
1093}
1094static DEVICE_ATTR_RW(wwan);
1095
1096/*
1097 * Display
1098 */
1099static void asus_set_display(struct asus_laptop *asus, int value)
1100{
1101 /* no sanity check needed for now */
1102 if (write_acpi_int(asus->handle, METHOD_SWITCH_DISPLAY, value))
1103 pr_warn("Error setting display\n");
1104 return;
1105}
1106
1107/*
1108 * Experimental support for display switching. As of now: 1 should activate
1109 * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI.
1110 * Any combination (bitwise) of these will suffice. I never actually tested 4
1111 * displays hooked up simultaneously, so be warned. See the acpi4asus README
1112 * for more info.
1113 */
1114static ssize_t display_store(struct device *dev, struct device_attribute *attr,
1115 const char *buf, size_t count)
1116{
1117 struct asus_laptop *asus = dev_get_drvdata(dev);
1118 int rv, value;
1119
1120 rv = kstrtoint(buf, 0, &value);
1121 if (rv < 0)
1122 return rv;
1123
1124 asus_set_display(asus, value);
1125 return count;
1126}
1127static DEVICE_ATTR_WO(display);
1128
1129/*
1130 * Light Sens
1131 */
1132static void asus_als_switch(struct asus_laptop *asus, int value)
1133{
1134 int ret;
1135
1136 if (asus->is_pega_lucid) {
1137 ret = asus_pega_lucid_set(asus, PEGA_ALS, value);
1138 if (!ret)
1139 ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value);
1140 } else {
1141 ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value);
1142 }
1143 if (ret)
1144 pr_warn("Error setting light sensor switch\n");
1145
1146 asus->light_switch = value;
1147}
1148
1149static ssize_t ls_switch_show(struct device *dev, struct device_attribute *attr,
1150 char *buf)
1151{
1152 struct asus_laptop *asus = dev_get_drvdata(dev);
1153
1154 return sprintf(buf, "%d\n", asus->light_switch);
1155}
1156
1157static ssize_t ls_switch_store(struct device *dev,
1158 struct device_attribute *attr, const char *buf,
1159 size_t count)
1160{
1161 struct asus_laptop *asus = dev_get_drvdata(dev);
1162 int rv, value;
1163
1164 rv = kstrtoint(buf, 0, &value);
1165 if (rv < 0)
1166 return rv;
1167
1168 asus_als_switch(asus, value ? 1 : 0);
1169 return count;
1170}
1171static DEVICE_ATTR_RW(ls_switch);
1172
1173static void asus_als_level(struct asus_laptop *asus, int value)
1174{
1175 if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value))
1176 pr_warn("Error setting light sensor level\n");
1177 asus->light_level = value;
1178}
1179
1180static ssize_t ls_level_show(struct device *dev, struct device_attribute *attr,
1181 char *buf)
1182{
1183 struct asus_laptop *asus = dev_get_drvdata(dev);
1184
1185 return sprintf(buf, "%d\n", asus->light_level);
1186}
1187
1188static ssize_t ls_level_store(struct device *dev, struct device_attribute *attr,
1189 const char *buf, size_t count)
1190{
1191 struct asus_laptop *asus = dev_get_drvdata(dev);
1192 int rv, value;
1193
1194 rv = kstrtoint(buf, 0, &value);
1195 if (rv < 0)
1196 return rv;
1197
1198 value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
1199 /* 0 <= value <= 15 */
1200 asus_als_level(asus, value);
1201
1202 return count;
1203}
1204static DEVICE_ATTR_RW(ls_level);
1205
1206static int pega_int_read(struct asus_laptop *asus, int arg, int *result)
1207{
1208 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1209 int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg,
1210 &buffer);
1211 if (!err) {
1212 union acpi_object *obj = buffer.pointer;
1213 if (obj && obj->type == ACPI_TYPE_INTEGER)
1214 *result = obj->integer.value;
1215 else
1216 err = -EIO;
1217 }
1218 return err;
1219}
1220
1221static ssize_t ls_value_show(struct device *dev, struct device_attribute *attr,
1222 char *buf)
1223{
1224 struct asus_laptop *asus = dev_get_drvdata(dev);
1225 int err, hi, lo;
1226
1227 err = pega_int_read(asus, PEGA_READ_ALS_H, &hi);
1228 if (!err)
1229 err = pega_int_read(asus, PEGA_READ_ALS_L, &lo);
1230 if (!err)
1231 return sprintf(buf, "%d\n", 10 * hi + lo);
1232 return err;
1233}
1234static DEVICE_ATTR_RO(ls_value);
1235
1236/*
1237 * GPS
1238 */
1239static int asus_gps_status(struct asus_laptop *asus)
1240{
1241 unsigned long long status;
1242 acpi_status rv;
1243
1244 rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS,
1245 NULL, &status);
1246 if (ACPI_FAILURE(rv)) {
1247 pr_warn("Error reading GPS status\n");
1248 return -ENODEV;
1249 }
1250 return !!status;
1251}
1252
1253static int asus_gps_switch(struct asus_laptop *asus, int status)
1254{
1255 const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF;
1256
1257 if (write_acpi_int(asus->handle, meth, 0x02))
1258 return -ENODEV;
1259 return 0;
1260}
1261
1262static ssize_t gps_show(struct device *dev, struct device_attribute *attr,
1263 char *buf)
1264{
1265 struct asus_laptop *asus = dev_get_drvdata(dev);
1266
1267 return sprintf(buf, "%d\n", asus_gps_status(asus));
1268}
1269
1270static ssize_t gps_store(struct device *dev, struct device_attribute *attr,
1271 const char *buf, size_t count)
1272{
1273 struct asus_laptop *asus = dev_get_drvdata(dev);
1274 int rv, value;
1275 int ret;
1276
1277 rv = kstrtoint(buf, 0, &value);
1278 if (rv < 0)
1279 return rv;
1280 ret = asus_gps_switch(asus, !!value);
1281 if (ret)
1282 return ret;
1283 rfkill_set_sw_state(asus->gps.rfkill, !value);
1284 return count;
1285}
1286static DEVICE_ATTR_RW(gps);
1287
1288/*
1289 * rfkill
1290 */
1291static int asus_gps_rfkill_set(void *data, bool blocked)
1292{
1293 struct asus_laptop *asus = data;
1294
1295 return asus_gps_switch(asus, !blocked);
1296}
1297
1298static const struct rfkill_ops asus_gps_rfkill_ops = {
1299 .set_block = asus_gps_rfkill_set,
1300};
1301
1302static int asus_rfkill_set(void *data, bool blocked)
1303{
1304 struct asus_rfkill *rfk = data;
1305 struct asus_laptop *asus = rfk->asus;
1306
1307 if (rfk->control_id == WL_RSTS)
1308 return asus_wlan_set(asus, !blocked);
1309 else if (rfk->control_id == BT_RSTS)
1310 return asus_bluetooth_set(asus, !blocked);
1311 else if (rfk->control_id == WM_RSTS)
1312 return asus_wimax_set(asus, !blocked);
1313 else if (rfk->control_id == WW_RSTS)
1314 return asus_wwan_set(asus, !blocked);
1315
1316 return -EINVAL;
1317}
1318
1319static const struct rfkill_ops asus_rfkill_ops = {
1320 .set_block = asus_rfkill_set,
1321};
1322
1323static void asus_rfkill_terminate(struct asus_rfkill *rfk)
1324{
1325 if (!rfk->rfkill)
1326 return ;
1327
1328 rfkill_unregister(rfk->rfkill);
1329 rfkill_destroy(rfk->rfkill);
1330 rfk->rfkill = NULL;
1331}
1332
1333static void asus_rfkill_exit(struct asus_laptop *asus)
1334{
1335 asus_rfkill_terminate(&asus->wwan);
1336 asus_rfkill_terminate(&asus->bluetooth);
1337 asus_rfkill_terminate(&asus->wlan);
1338 asus_rfkill_terminate(&asus->gps);
1339}
1340
1341static int asus_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
1342 const char *name, int control_id, int type,
1343 const struct rfkill_ops *ops)
1344{
1345 int result;
1346
1347 rfk->control_id = control_id;
1348 rfk->asus = asus;
1349 rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev,
1350 type, ops, rfk);
1351 if (!rfk->rfkill)
1352 return -EINVAL;
1353
1354 result = rfkill_register(rfk->rfkill);
1355 if (result) {
1356 rfkill_destroy(rfk->rfkill);
1357 rfk->rfkill = NULL;
1358 }
1359
1360 return result;
1361}
1362
1363static int asus_rfkill_init(struct asus_laptop *asus)
1364{
1365 int result = 0;
1366
1367 if (asus->is_pega_lucid)
1368 return -ENODEV;
1369
1370 if (!acpi_check_handle(asus->handle, METHOD_GPS_ON, NULL) &&
1371 !acpi_check_handle(asus->handle, METHOD_GPS_OFF, NULL) &&
1372 !acpi_check_handle(asus->handle, METHOD_GPS_STATUS, NULL))
1373 result = asus_rfkill_setup(asus, &asus->gps, "asus-gps",
1374 -1, RFKILL_TYPE_GPS,
1375 &asus_gps_rfkill_ops);
1376 if (result)
1377 goto exit;
1378
1379
1380 if (!acpi_check_handle(asus->handle, METHOD_WLAN, NULL) &&
1381 asus->wled_type == TYPE_RFKILL)
1382 result = asus_rfkill_setup(asus, &asus->wlan, "asus-wlan",
1383 WL_RSTS, RFKILL_TYPE_WLAN,
1384 &asus_rfkill_ops);
1385 if (result)
1386 goto exit;
1387
1388 if (!acpi_check_handle(asus->handle, METHOD_BLUETOOTH, NULL) &&
1389 asus->bled_type == TYPE_RFKILL)
1390 result = asus_rfkill_setup(asus, &asus->bluetooth,
1391 "asus-bluetooth", BT_RSTS,
1392 RFKILL_TYPE_BLUETOOTH,
1393 &asus_rfkill_ops);
1394 if (result)
1395 goto exit;
1396
1397 if (!acpi_check_handle(asus->handle, METHOD_WWAN, NULL))
1398 result = asus_rfkill_setup(asus, &asus->wwan, "asus-wwan",
1399 WW_RSTS, RFKILL_TYPE_WWAN,
1400 &asus_rfkill_ops);
1401 if (result)
1402 goto exit;
1403
1404 if (!acpi_check_handle(asus->handle, METHOD_WIMAX, NULL))
1405 result = asus_rfkill_setup(asus, &asus->wimax, "asus-wimax",
1406 WM_RSTS, RFKILL_TYPE_WIMAX,
1407 &asus_rfkill_ops);
1408 if (result)
1409 goto exit;
1410
1411exit:
1412 if (result)
1413 asus_rfkill_exit(asus);
1414
1415 return result;
1416}
1417
1418static int pega_rfkill_set(void *data, bool blocked)
1419{
1420 struct asus_rfkill *rfk = data;
1421
1422 int ret = asus_pega_lucid_set(rfk->asus, rfk->control_id, !blocked);
1423 return ret;
1424}
1425
1426static const struct rfkill_ops pega_rfkill_ops = {
1427 .set_block = pega_rfkill_set,
1428};
1429
1430static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
1431 const char *name, int controlid, int rfkill_type)
1432{
1433 return asus_rfkill_setup(asus, rfk, name, controlid, rfkill_type,
1434 &pega_rfkill_ops);
1435}
1436
1437static int pega_rfkill_init(struct asus_laptop *asus)
1438{
1439 int ret = 0;
1440
1441 if(!asus->is_pega_lucid)
1442 return -ENODEV;
1443
1444 ret = pega_rfkill_setup(asus, &asus->wlan, "pega-wlan",
1445 PEGA_WLAN, RFKILL_TYPE_WLAN);
1446 if(ret)
1447 goto exit;
1448
1449 ret = pega_rfkill_setup(asus, &asus->bluetooth, "pega-bt",
1450 PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH);
1451 if(ret)
1452 goto exit;
1453
1454 ret = pega_rfkill_setup(asus, &asus->wwan, "pega-wwan",
1455 PEGA_WWAN, RFKILL_TYPE_WWAN);
1456
1457exit:
1458 if (ret)
1459 asus_rfkill_exit(asus);
1460
1461 return ret;
1462}
1463
1464/*
1465 * Input device (i.e. hotkeys)
1466 */
1467static void asus_input_notify(struct asus_laptop *asus, int event)
1468{
1469 if (!asus->inputdev)
1470 return ;
1471 if (!sparse_keymap_report_event(asus->inputdev, event, 1, true))
1472 pr_info("Unknown key %x pressed\n", event);
1473}
1474
1475static int asus_input_init(struct asus_laptop *asus)
1476{
1477 struct input_dev *input;
1478 int error;
1479
1480 input = input_allocate_device();
1481 if (!input)
1482 return -ENOMEM;
1483
1484 input->name = "Asus Laptop extra buttons";
1485 input->phys = ASUS_LAPTOP_FILE "/input0";
1486 input->id.bustype = BUS_HOST;
1487 input->dev.parent = &asus->platform_device->dev;
1488
1489 error = sparse_keymap_setup(input, asus_keymap, NULL);
1490 if (error) {
1491 pr_err("Unable to setup input device keymap\n");
1492 goto err_free_dev;
1493 }
1494 error = input_register_device(input);
1495 if (error) {
1496 pr_warn("Unable to register input device\n");
1497 goto err_free_dev;
1498 }
1499
1500 asus->inputdev = input;
1501 return 0;
1502
1503err_free_dev:
1504 input_free_device(input);
1505 return error;
1506}
1507
1508static void asus_input_exit(struct asus_laptop *asus)
1509{
1510 if (asus->inputdev)
1511 input_unregister_device(asus->inputdev);
1512 asus->inputdev = NULL;
1513}
1514
1515/*
1516 * ACPI driver
1517 */
1518static void asus_acpi_notify(struct acpi_device *device, u32 event)
1519{
1520 struct asus_laptop *asus = acpi_driver_data(device);
1521 u16 count;
1522
1523 /* TODO Find a better way to handle events count. */
1524 count = asus->event_count[event % 128]++;
1525 acpi_bus_generate_netlink_event(asus->device->pnp.device_class,
1526 dev_name(&asus->device->dev), event,
1527 count);
1528
1529 if (event >= ATKD_BRNUP_MIN && event <= ATKD_BRNUP_MAX)
1530 event = ATKD_BRNUP;
1531 else if (event >= ATKD_BRNDOWN_MIN &&
1532 event <= ATKD_BRNDOWN_MAX)
1533 event = ATKD_BRNDOWN;
1534
1535 /* Brightness events are special */
1536 if (event == ATKD_BRNDOWN || event == ATKD_BRNUP) {
1537 if (asus->backlight_device != NULL) {
1538 /* Update the backlight device. */
1539 asus_backlight_notify(asus);
1540 return ;
1541 }
1542 }
1543
1544 /* Accelerometer "coarse orientation change" event */
1545 if (asus->pega_accel_poll && event == 0xEA) {
1546 kobject_uevent(&asus->pega_accel_poll->dev.kobj, KOBJ_CHANGE);
1547 return ;
1548 }
1549
1550 asus_input_notify(asus, event);
1551}
1552
1553static struct attribute *asus_attributes[] = {
1554 &dev_attr_infos.attr,
1555 &dev_attr_wlan.attr,
1556 &dev_attr_bluetooth.attr,
1557 &dev_attr_wimax.attr,
1558 &dev_attr_wwan.attr,
1559 &dev_attr_display.attr,
1560 &dev_attr_ledd.attr,
1561 &dev_attr_ls_value.attr,
1562 &dev_attr_ls_level.attr,
1563 &dev_attr_ls_switch.attr,
1564 &dev_attr_gps.attr,
1565 NULL
1566};
1567
1568static umode_t asus_sysfs_is_visible(struct kobject *kobj,
1569 struct attribute *attr,
1570 int idx)
1571{
1572 struct device *dev = kobj_to_dev(kobj);
1573 struct asus_laptop *asus = dev_get_drvdata(dev);
1574 acpi_handle handle = asus->handle;
1575 bool supported;
1576
1577 if (asus->is_pega_lucid) {
1578 /* no ls_level interface on the Lucid */
1579 if (attr == &dev_attr_ls_switch.attr)
1580 supported = true;
1581 else if (attr == &dev_attr_ls_level.attr)
1582 supported = false;
1583 else
1584 goto normal;
1585
1586 return supported ? attr->mode : 0;
1587 }
1588
1589normal:
1590 if (attr == &dev_attr_wlan.attr) {
1591 supported = !acpi_check_handle(handle, METHOD_WLAN, NULL);
1592
1593 } else if (attr == &dev_attr_bluetooth.attr) {
1594 supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL);
1595
1596 } else if (attr == &dev_attr_display.attr) {
1597 supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL);
1598
1599 } else if (attr == &dev_attr_wimax.attr) {
1600 supported =
1601 !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL);
1602
1603 } else if (attr == &dev_attr_wwan.attr) {
1604 supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL);
1605
1606 } else if (attr == &dev_attr_ledd.attr) {
1607 supported = !acpi_check_handle(handle, METHOD_LEDD, NULL);
1608
1609 } else if (attr == &dev_attr_ls_switch.attr ||
1610 attr == &dev_attr_ls_level.attr) {
1611 supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) &&
1612 !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL);
1613 } else if (attr == &dev_attr_ls_value.attr) {
1614 supported = asus->is_pega_lucid;
1615 } else if (attr == &dev_attr_gps.attr) {
1616 supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) &&
1617 !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) &&
1618 !acpi_check_handle(handle, METHOD_GPS_STATUS, NULL);
1619 } else {
1620 supported = true;
1621 }
1622
1623 return supported ? attr->mode : 0;
1624}
1625
1626
1627static const struct attribute_group asus_attr_group = {
1628 .is_visible = asus_sysfs_is_visible,
1629 .attrs = asus_attributes,
1630};
1631
1632static int asus_platform_init(struct asus_laptop *asus)
1633{
1634 int result;
1635
1636 asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, PLATFORM_DEVID_NONE);
1637 if (!asus->platform_device)
1638 return -ENOMEM;
1639 platform_set_drvdata(asus->platform_device, asus);
1640
1641 result = platform_device_add(asus->platform_device);
1642 if (result)
1643 goto fail_platform_device;
1644
1645 result = sysfs_create_group(&asus->platform_device->dev.kobj,
1646 &asus_attr_group);
1647 if (result)
1648 goto fail_sysfs;
1649
1650 return 0;
1651
1652fail_sysfs:
1653 platform_device_del(asus->platform_device);
1654fail_platform_device:
1655 platform_device_put(asus->platform_device);
1656 return result;
1657}
1658
1659static void asus_platform_exit(struct asus_laptop *asus)
1660{
1661 sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group);
1662 platform_device_unregister(asus->platform_device);
1663}
1664
1665static struct platform_driver platform_driver = {
1666 .driver = {
1667 .name = ASUS_LAPTOP_FILE,
1668 },
1669};
1670
1671/*
1672 * This function is used to initialize the context with right values. In this
1673 * method, we can make all the detection we want, and modify the asus_laptop
1674 * struct
1675 */
1676static int asus_laptop_get_info(struct asus_laptop *asus)
1677{
1678 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1679 union acpi_object *model = NULL;
1680 unsigned long long bsts_result;
1681 char *string = NULL;
1682 acpi_status status;
1683
1684 /*
1685 * Get DSDT headers early enough to allow for differentiating between
1686 * models, but late enough to allow acpi_bus_register_driver() to fail
1687 * before doing anything ACPI-specific. Should we encounter a machine,
1688 * which needs special handling (i.e. its hotkey device has a different
1689 * HID), this bit will be moved.
1690 */
1691 status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info);
1692 if (ACPI_FAILURE(status))
1693 pr_warn("Couldn't get the DSDT table header\n");
1694
1695 /* We have to write 0 on init this far for all ASUS models */
1696 if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) {
1697 pr_err("Hotkey initialization failed\n");
1698 return -ENODEV;
1699 }
1700
1701 /* This needs to be called for some laptops to init properly */
1702 status =
1703 acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result);
1704 if (ACPI_FAILURE(status))
1705 pr_warn("Error calling BSTS\n");
1706 else if (bsts_result)
1707 pr_notice("BSTS called, 0x%02x returned\n",
1708 (uint) bsts_result);
1709
1710 /* This too ... */
1711 if (write_acpi_int(asus->handle, "CWAP", wapf))
1712 pr_err("Error calling CWAP(%d)\n", wapf);
1713 /*
1714 * Try to match the object returned by INIT to the specific model.
1715 * Handle every possible object (or the lack of thereof) the DSDT
1716 * writers might throw at us. When in trouble, we pass NULL to
1717 * asus_model_match() and try something completely different.
1718 */
1719 if (buffer.pointer) {
1720 model = buffer.pointer;
1721 switch (model->type) {
1722 case ACPI_TYPE_STRING:
1723 string = model->string.pointer;
1724 break;
1725 case ACPI_TYPE_BUFFER:
1726 string = model->buffer.pointer;
1727 break;
1728 default:
1729 string = "";
1730 break;
1731 }
1732 }
1733 asus->name = kstrdup(string, GFP_KERNEL);
1734 if (!asus->name) {
1735 kfree(buffer.pointer);
1736 return -ENOMEM;
1737 }
1738
1739 if (string)
1740 pr_notice(" %s model detected\n", string);
1741
1742 if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL))
1743 asus->have_rsts = true;
1744
1745 kfree(model);
1746
1747 return AE_OK;
1748}
1749
1750static int asus_acpi_init(struct asus_laptop *asus)
1751{
1752 int result = 0;
1753
1754 result = acpi_bus_get_status(asus->device);
1755 if (result)
1756 return result;
1757 if (!asus->device->status.present) {
1758 pr_err("Hotkey device not present, aborting\n");
1759 return -ENODEV;
1760 }
1761
1762 result = asus_laptop_get_info(asus);
1763 if (result)
1764 return result;
1765
1766 if (!strcmp(bled_type, "led"))
1767 asus->bled_type = TYPE_LED;
1768 else if (!strcmp(bled_type, "rfkill"))
1769 asus->bled_type = TYPE_RFKILL;
1770
1771 if (!strcmp(wled_type, "led"))
1772 asus->wled_type = TYPE_LED;
1773 else if (!strcmp(wled_type, "rfkill"))
1774 asus->wled_type = TYPE_RFKILL;
1775
1776 if (bluetooth_status >= 0)
1777 asus_bluetooth_set(asus, !!bluetooth_status);
1778
1779 if (wlan_status >= 0)
1780 asus_wlan_set(asus, !!wlan_status);
1781
1782 if (wimax_status >= 0)
1783 asus_wimax_set(asus, !!wimax_status);
1784
1785 if (wwan_status >= 0)
1786 asus_wwan_set(asus, !!wwan_status);
1787
1788 /* Keyboard Backlight is on by default */
1789 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL))
1790 asus_kled_set(asus, 1);
1791
1792 /* LED display is off by default */
1793 asus->ledd_status = 0xFFF;
1794
1795 /* Set initial values of light sensor and level */
1796 asus->light_switch = !!als_status;
1797 asus->light_level = 5; /* level 5 for sensor sensitivity */
1798
1799 if (asus->is_pega_lucid) {
1800 asus_als_switch(asus, asus->light_switch);
1801 } else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) &&
1802 !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) {
1803 asus_als_switch(asus, asus->light_switch);
1804 asus_als_level(asus, asus->light_level);
1805 }
1806
1807 return result;
1808}
1809
1810static void asus_dmi_check(void)
1811{
1812 const char *model;
1813
1814 model = dmi_get_system_info(DMI_PRODUCT_NAME);
1815 if (!model)
1816 return;
1817
1818 /* On L1400B WLED control the sound card, don't mess with it ... */
1819 if (strncmp(model, "L1400B", 6) == 0) {
1820 wlan_status = -1;
1821 }
1822}
1823
1824static bool asus_device_present;
1825
1826static int asus_acpi_add(struct acpi_device *device)
1827{
1828 struct asus_laptop *asus;
1829 int result;
1830
1831 pr_notice("Asus Laptop Support version %s\n",
1832 ASUS_LAPTOP_VERSION);
1833 asus = kzalloc(sizeof(struct asus_laptop), GFP_KERNEL);
1834 if (!asus)
1835 return -ENOMEM;
1836 asus->handle = device->handle;
1837 strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME);
1838 strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS);
1839 device->driver_data = asus;
1840 asus->device = device;
1841
1842 asus_dmi_check();
1843
1844 result = asus_acpi_init(asus);
1845 if (result)
1846 goto fail_platform;
1847
1848 /*
1849 * Need platform type detection first, then the platform
1850 * device. It is used as a parent for the sub-devices below.
1851 */
1852 asus->is_pega_lucid = asus_check_pega_lucid(asus);
1853 result = asus_platform_init(asus);
1854 if (result)
1855 goto fail_platform;
1856
1857 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1858 result = asus_backlight_init(asus);
1859 if (result)
1860 goto fail_backlight;
1861 }
1862
1863 result = asus_input_init(asus);
1864 if (result)
1865 goto fail_input;
1866
1867 result = asus_led_init(asus);
1868 if (result)
1869 goto fail_led;
1870
1871 result = asus_rfkill_init(asus);
1872 if (result && result != -ENODEV)
1873 goto fail_rfkill;
1874
1875 result = pega_accel_init(asus);
1876 if (result && result != -ENODEV)
1877 goto fail_pega_accel;
1878
1879 result = pega_rfkill_init(asus);
1880 if (result && result != -ENODEV)
1881 goto fail_pega_rfkill;
1882
1883 asus_device_present = true;
1884 return 0;
1885
1886fail_pega_rfkill:
1887 pega_accel_exit(asus);
1888fail_pega_accel:
1889 asus_rfkill_exit(asus);
1890fail_rfkill:
1891 asus_led_exit(asus);
1892fail_led:
1893 asus_input_exit(asus);
1894fail_input:
1895 asus_backlight_exit(asus);
1896fail_backlight:
1897 asus_platform_exit(asus);
1898fail_platform:
1899 kfree(asus);
1900
1901 return result;
1902}
1903
1904static void asus_acpi_remove(struct acpi_device *device)
1905{
1906 struct asus_laptop *asus = acpi_driver_data(device);
1907
1908 asus_backlight_exit(asus);
1909 asus_rfkill_exit(asus);
1910 asus_led_exit(asus);
1911 asus_input_exit(asus);
1912 pega_accel_exit(asus);
1913 asus_platform_exit(asus);
1914
1915 kfree(asus->name);
1916 kfree(asus);
1917}
1918
1919static const struct acpi_device_id asus_device_ids[] = {
1920 {"ATK0100", 0},
1921 {"ATK0101", 0},
1922 {"", 0},
1923};
1924MODULE_DEVICE_TABLE(acpi, asus_device_ids);
1925
1926static struct acpi_driver asus_acpi_driver = {
1927 .name = ASUS_LAPTOP_NAME,
1928 .class = ASUS_LAPTOP_CLASS,
1929 .owner = THIS_MODULE,
1930 .ids = asus_device_ids,
1931 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1932 .ops = {
1933 .add = asus_acpi_add,
1934 .remove = asus_acpi_remove,
1935 .notify = asus_acpi_notify,
1936 },
1937};
1938
1939static int __init asus_laptop_init(void)
1940{
1941 int result;
1942
1943 result = platform_driver_register(&platform_driver);
1944 if (result < 0)
1945 return result;
1946
1947 result = acpi_bus_register_driver(&asus_acpi_driver);
1948 if (result < 0)
1949 goto fail_acpi_driver;
1950 if (!asus_device_present) {
1951 result = -ENODEV;
1952 goto fail_no_device;
1953 }
1954 return 0;
1955
1956fail_no_device:
1957 acpi_bus_unregister_driver(&asus_acpi_driver);
1958fail_acpi_driver:
1959 platform_driver_unregister(&platform_driver);
1960 return result;
1961}
1962
1963static void __exit asus_laptop_exit(void)
1964{
1965 acpi_bus_unregister_driver(&asus_acpi_driver);
1966 platform_driver_unregister(&platform_driver);
1967}
1968
1969module_init(asus_laptop_init);
1970module_exit(asus_laptop_exit);
1/*
2 * asus-laptop.c - Asus Laptop Support
3 *
4 *
5 * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor
6 * Copyright (C) 2006-2007 Corentin Chary
7 * Copyright (C) 2011 Wind River Systems
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 *
24 * The development page for this driver is located at
25 * http://sourceforge.net/projects/acpi4asus/
26 *
27 * Credits:
28 * Pontus Fuchs - Helper functions, cleanup
29 * Johann Wiesner - Small compile fixes
30 * John Belmonte - ACPI code for Toshiba laptop was a good starting point.
31 * Eric Burghard - LED display support for W1N
32 * Josh Green - Light Sens support
33 * Thomas Tuttle - His first patch for led support was very helpful
34 * Sam Lin - GPS support
35 */
36
37#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
38
39#include <linux/kernel.h>
40#include <linux/module.h>
41#include <linux/init.h>
42#include <linux/types.h>
43#include <linux/err.h>
44#include <linux/proc_fs.h>
45#include <linux/backlight.h>
46#include <linux/fb.h>
47#include <linux/leds.h>
48#include <linux/platform_device.h>
49#include <linux/uaccess.h>
50#include <linux/input.h>
51#include <linux/input/sparse-keymap.h>
52#include <linux/input-polldev.h>
53#include <linux/rfkill.h>
54#include <linux/slab.h>
55#include <linux/dmi.h>
56#include <linux/acpi.h>
57#include <acpi/video.h>
58
59#define ASUS_LAPTOP_VERSION "0.42"
60
61#define ASUS_LAPTOP_NAME "Asus Laptop Support"
62#define ASUS_LAPTOP_CLASS "hotkey"
63#define ASUS_LAPTOP_DEVICE_NAME "Hotkey"
64#define ASUS_LAPTOP_FILE KBUILD_MODNAME
65#define ASUS_LAPTOP_PREFIX "\\_SB.ATKD."
66
67MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary");
68MODULE_DESCRIPTION(ASUS_LAPTOP_NAME);
69MODULE_LICENSE("GPL");
70
71/*
72 * WAPF defines the behavior of the Fn+Fx wlan key
73 * The significance of values is yet to be found, but
74 * most of the time:
75 * Bit | Bluetooth | WLAN
76 * 0 | Hardware | Hardware
77 * 1 | Hardware | Software
78 * 4 | Software | Software
79 */
80static uint wapf = 1;
81module_param(wapf, uint, 0444);
82MODULE_PARM_DESC(wapf, "WAPF value");
83
84static char *wled_type = "unknown";
85static char *bled_type = "unknown";
86
87module_param(wled_type, charp, 0444);
88MODULE_PARM_DESC(wled_type, "Set the wled type on boot "
89 "(unknown, led or rfkill). "
90 "default is unknown");
91
92module_param(bled_type, charp, 0444);
93MODULE_PARM_DESC(bled_type, "Set the bled type on boot "
94 "(unknown, led or rfkill). "
95 "default is unknown");
96
97static int wlan_status = 1;
98static int bluetooth_status = 1;
99static int wimax_status = -1;
100static int wwan_status = -1;
101static int als_status;
102
103module_param(wlan_status, int, 0444);
104MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot "
105 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
106 "default is -1");
107
108module_param(bluetooth_status, int, 0444);
109MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot "
110 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
111 "default is -1");
112
113module_param(wimax_status, int, 0444);
114MODULE_PARM_DESC(wimax_status, "Set the wireless status on boot "
115 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
116 "default is -1");
117
118module_param(wwan_status, int, 0444);
119MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot "
120 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
121 "default is -1");
122
123module_param(als_status, int, 0444);
124MODULE_PARM_DESC(als_status, "Set the ALS status on boot "
125 "(0 = disabled, 1 = enabled). "
126 "default is 0");
127
128/*
129 * Some events we use, same for all Asus
130 */
131#define ATKD_BRNUP_MIN 0x10
132#define ATKD_BRNUP_MAX 0x1f
133#define ATKD_BRNDOWN_MIN 0x20
134#define ATKD_BRNDOWN_MAX 0x2f
135#define ATKD_BRNDOWN 0x20
136#define ATKD_BRNUP 0x2f
137#define ATKD_LCD_ON 0x33
138#define ATKD_LCD_OFF 0x34
139
140/*
141 * Known bits returned by \_SB.ATKD.HWRS
142 */
143#define WL_HWRS 0x80
144#define BT_HWRS 0x100
145
146/*
147 * Flags for hotk status
148 * WL_ON and BT_ON are also used for wireless_status()
149 */
150#define WL_RSTS 0x01 /* internal Wifi */
151#define BT_RSTS 0x02 /* internal Bluetooth */
152#define WM_RSTS 0x08 /* internal wimax */
153#define WW_RSTS 0x20 /* internal wwan */
154
155/* WLED and BLED type */
156#define TYPE_UNKNOWN 0
157#define TYPE_LED 1
158#define TYPE_RFKILL 2
159
160/* LED */
161#define METHOD_MLED "MLED"
162#define METHOD_TLED "TLED"
163#define METHOD_RLED "RLED" /* W1JC */
164#define METHOD_PLED "PLED" /* A7J */
165#define METHOD_GLED "GLED" /* G1, G2 (probably) */
166
167/* LEDD */
168#define METHOD_LEDD "SLCM"
169
170/*
171 * Bluetooth and WLAN
172 * WLED and BLED are not handled like other XLED, because in some dsdt
173 * they also control the WLAN/Bluetooth device.
174 */
175#define METHOD_WLAN "WLED"
176#define METHOD_BLUETOOTH "BLED"
177
178/* WWAN and WIMAX */
179#define METHOD_WWAN "GSMC"
180#define METHOD_WIMAX "WMXC"
181
182#define METHOD_WL_STATUS "RSTS"
183
184/* Brightness */
185#define METHOD_BRIGHTNESS_SET "SPLV"
186#define METHOD_BRIGHTNESS_GET "GPLV"
187
188/* Display */
189#define METHOD_SWITCH_DISPLAY "SDSP"
190
191#define METHOD_ALS_CONTROL "ALSC" /* Z71A Z71V */
192#define METHOD_ALS_LEVEL "ALSL" /* Z71A Z71V */
193
194/* GPS */
195/* R2H use different handle for GPS on/off */
196#define METHOD_GPS_ON "SDON"
197#define METHOD_GPS_OFF "SDOF"
198#define METHOD_GPS_STATUS "GPST"
199
200/* Keyboard light */
201#define METHOD_KBD_LIGHT_SET "SLKB"
202#define METHOD_KBD_LIGHT_GET "GLKB"
203
204/* For Pegatron Lucid tablet */
205#define DEVICE_NAME_PEGA "Lucid"
206
207#define METHOD_PEGA_ENABLE "ENPR"
208#define METHOD_PEGA_DISABLE "DAPR"
209#define PEGA_WLAN 0x00
210#define PEGA_BLUETOOTH 0x01
211#define PEGA_WWAN 0x02
212#define PEGA_ALS 0x04
213#define PEGA_ALS_POWER 0x05
214
215#define METHOD_PEGA_READ "RDLN"
216#define PEGA_READ_ALS_H 0x02
217#define PEGA_READ_ALS_L 0x03
218
219#define PEGA_ACCEL_NAME "pega_accel"
220#define PEGA_ACCEL_DESC "Pegatron Lucid Tablet Accelerometer"
221#define METHOD_XLRX "XLRX"
222#define METHOD_XLRY "XLRY"
223#define METHOD_XLRZ "XLRZ"
224#define PEGA_ACC_CLAMP 512 /* 1G accel is reported as ~256, so clamp to 2G */
225#define PEGA_ACC_RETRIES 3
226
227/*
228 * Define a specific led structure to keep the main structure clean
229 */
230struct asus_led {
231 int wk;
232 struct work_struct work;
233 struct led_classdev led;
234 struct asus_laptop *asus;
235 const char *method;
236};
237
238/*
239 * Same thing for rfkill
240 */
241struct asus_rfkill {
242 /* type of control. Maps to PEGA_* values or *_RSTS */
243 int control_id;
244 struct rfkill *rfkill;
245 struct asus_laptop *asus;
246};
247
248/*
249 * This is the main structure, we can use it to store anything interesting
250 * about the hotk device
251 */
252struct asus_laptop {
253 char *name; /* laptop name */
254
255 struct acpi_table_header *dsdt_info;
256 struct platform_device *platform_device;
257 struct acpi_device *device; /* the device we are in */
258 struct backlight_device *backlight_device;
259
260 struct input_dev *inputdev;
261 struct key_entry *keymap;
262 struct input_polled_dev *pega_accel_poll;
263
264 struct asus_led wled;
265 struct asus_led bled;
266 struct asus_led mled;
267 struct asus_led tled;
268 struct asus_led rled;
269 struct asus_led pled;
270 struct asus_led gled;
271 struct asus_led kled;
272 struct workqueue_struct *led_workqueue;
273
274 int wled_type;
275 int bled_type;
276 int wireless_status;
277 bool have_rsts;
278 bool is_pega_lucid;
279 bool pega_acc_live;
280 int pega_acc_x;
281 int pega_acc_y;
282 int pega_acc_z;
283
284 struct asus_rfkill wlan;
285 struct asus_rfkill bluetooth;
286 struct asus_rfkill wwan;
287 struct asus_rfkill wimax;
288 struct asus_rfkill gps;
289
290 acpi_handle handle; /* the handle of the hotk device */
291 u32 ledd_status; /* status of the LED display */
292 u8 light_level; /* light sensor level */
293 u8 light_switch; /* light sensor switch value */
294 u16 event_count[128]; /* count for each event TODO make this better */
295};
296
297static const struct key_entry asus_keymap[] = {
298 /* Lenovo SL Specific keycodes */
299 {KE_KEY, 0x02, { KEY_SCREENLOCK } },
300 {KE_KEY, 0x05, { KEY_WLAN } },
301 {KE_KEY, 0x08, { KEY_F13 } },
302 {KE_KEY, 0x09, { KEY_PROG2 } }, /* Dock */
303 {KE_KEY, 0x17, { KEY_ZOOM } },
304 {KE_KEY, 0x1f, { KEY_BATTERY } },
305 /* End of Lenovo SL Specific keycodes */
306 {KE_KEY, ATKD_BRNDOWN, { KEY_BRIGHTNESSDOWN } },
307 {KE_KEY, ATKD_BRNUP, { KEY_BRIGHTNESSUP } },
308 {KE_KEY, 0x30, { KEY_VOLUMEUP } },
309 {KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
310 {KE_KEY, 0x32, { KEY_MUTE } },
311 {KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
312 {KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
313 {KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
314 {KE_KEY, 0x41, { KEY_NEXTSONG } },
315 {KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
316 {KE_KEY, 0x45, { KEY_PLAYPAUSE } },
317 {KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
318 {KE_KEY, 0x50, { KEY_EMAIL } },
319 {KE_KEY, 0x51, { KEY_WWW } },
320 {KE_KEY, 0x55, { KEY_CALC } },
321 {KE_IGNORE, 0x57, }, /* Battery mode */
322 {KE_IGNORE, 0x58, }, /* AC mode */
323 {KE_KEY, 0x5C, { KEY_SCREENLOCK } }, /* Screenlock */
324 {KE_KEY, 0x5D, { KEY_WLAN } }, /* WLAN Toggle */
325 {KE_KEY, 0x5E, { KEY_WLAN } }, /* WLAN Enable */
326 {KE_KEY, 0x5F, { KEY_WLAN } }, /* WLAN Disable */
327 {KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
328 {KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
329 {KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
330 {KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
331 {KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
332 {KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
333 {KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
334 {KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
335 {KE_KEY, 0x6A, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad Fn + F9 */
336 {KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad */
337 {KE_KEY, 0x6C, { KEY_SLEEP } }, /* Suspend */
338 {KE_KEY, 0x6D, { KEY_SLEEP } }, /* Hibernate */
339 {KE_IGNORE, 0x6E, }, /* Low Battery notification */
340 {KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
341 {KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
342 {KE_KEY, 0x82, { KEY_CAMERA } },
343 {KE_KEY, 0x88, { KEY_RFKILL } }, /* Radio Toggle Key */
344 {KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
345 {KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
346 {KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
347 {KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
348 {KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
349 {KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
350 {KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
351 {KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
352 {KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
353 {KE_KEY, 0x95, { KEY_MEDIA } },
354 {KE_KEY, 0x99, { KEY_PHONE } },
355 {KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
356 {KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
357 {KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
358 {KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
359 {KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
360 {KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
361 {KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
362 {KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
363 {KE_KEY, 0xB5, { KEY_CALC } },
364 {KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
365 {KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
366 {KE_END, 0},
367};
368
369
370/*
371 * This function evaluates an ACPI method, given an int as parameter, the
372 * method is searched within the scope of the handle, can be NULL. The output
373 * of the method is written is output, which can also be NULL
374 *
375 * returns 0 if write is successful, -1 else.
376 */
377static int write_acpi_int_ret(acpi_handle handle, const char *method, int val,
378 struct acpi_buffer *output)
379{
380 struct acpi_object_list params; /* list of input parameters (an int) */
381 union acpi_object in_obj; /* the only param we use */
382 acpi_status status;
383
384 if (!handle)
385 return -1;
386
387 params.count = 1;
388 params.pointer = &in_obj;
389 in_obj.type = ACPI_TYPE_INTEGER;
390 in_obj.integer.value = val;
391
392 status = acpi_evaluate_object(handle, (char *)method, ¶ms, output);
393 if (status == AE_OK)
394 return 0;
395 else
396 return -1;
397}
398
399static int write_acpi_int(acpi_handle handle, const char *method, int val)
400{
401 return write_acpi_int_ret(handle, method, val, NULL);
402}
403
404static int acpi_check_handle(acpi_handle handle, const char *method,
405 acpi_handle *ret)
406{
407 acpi_status status;
408
409 if (method == NULL)
410 return -ENODEV;
411
412 if (ret)
413 status = acpi_get_handle(handle, (char *)method,
414 ret);
415 else {
416 acpi_handle dummy;
417
418 status = acpi_get_handle(handle, (char *)method,
419 &dummy);
420 }
421
422 if (status != AE_OK) {
423 if (ret)
424 pr_warn("Error finding %s\n", method);
425 return -ENODEV;
426 }
427 return 0;
428}
429
430static bool asus_check_pega_lucid(struct asus_laptop *asus)
431{
432 return !strcmp(asus->name, DEVICE_NAME_PEGA) &&
433 !acpi_check_handle(asus->handle, METHOD_PEGA_ENABLE, NULL) &&
434 !acpi_check_handle(asus->handle, METHOD_PEGA_DISABLE, NULL) &&
435 !acpi_check_handle(asus->handle, METHOD_PEGA_READ, NULL);
436}
437
438static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable)
439{
440 char *method = enable ? METHOD_PEGA_ENABLE : METHOD_PEGA_DISABLE;
441 return write_acpi_int(asus->handle, method, unit);
442}
443
444static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method)
445{
446 int i, delta;
447 unsigned long long val;
448 for (i = 0; i < PEGA_ACC_RETRIES; i++) {
449 acpi_evaluate_integer(asus->handle, method, NULL, &val);
450
451 /* The output is noisy. From reading the ASL
452 * dissassembly, timeout errors are returned with 1's
453 * in the high word, and the lack of locking around
454 * thei hi/lo byte reads means that a transition
455 * between (for example) -1 and 0 could be read as
456 * 0xff00 or 0x00ff. */
457 delta = abs(curr - (short)val);
458 if (delta < 128 && !(val & ~0xffff))
459 break;
460 }
461 return clamp_val((short)val, -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP);
462}
463
464static void pega_accel_poll(struct input_polled_dev *ipd)
465{
466 struct device *parent = ipd->input->dev.parent;
467 struct asus_laptop *asus = dev_get_drvdata(parent);
468
469 /* In some cases, the very first call to poll causes a
470 * recursive fault under the polldev worker. This is
471 * apparently related to very early userspace access to the
472 * device, and perhaps a firmware bug. Fake the first report. */
473 if (!asus->pega_acc_live) {
474 asus->pega_acc_live = true;
475 input_report_abs(ipd->input, ABS_X, 0);
476 input_report_abs(ipd->input, ABS_Y, 0);
477 input_report_abs(ipd->input, ABS_Z, 0);
478 input_sync(ipd->input);
479 return;
480 }
481
482 asus->pega_acc_x = pega_acc_axis(asus, asus->pega_acc_x, METHOD_XLRX);
483 asus->pega_acc_y = pega_acc_axis(asus, asus->pega_acc_y, METHOD_XLRY);
484 asus->pega_acc_z = pega_acc_axis(asus, asus->pega_acc_z, METHOD_XLRZ);
485
486 /* Note transform, convert to "right/up/out" in the native
487 * landscape orientation (i.e. the vector is the direction of
488 * "real up" in the device's cartiesian coordinates). */
489 input_report_abs(ipd->input, ABS_X, -asus->pega_acc_x);
490 input_report_abs(ipd->input, ABS_Y, -asus->pega_acc_y);
491 input_report_abs(ipd->input, ABS_Z, asus->pega_acc_z);
492 input_sync(ipd->input);
493}
494
495static void pega_accel_exit(struct asus_laptop *asus)
496{
497 if (asus->pega_accel_poll) {
498 input_unregister_polled_device(asus->pega_accel_poll);
499 input_free_polled_device(asus->pega_accel_poll);
500 }
501 asus->pega_accel_poll = NULL;
502}
503
504static int pega_accel_init(struct asus_laptop *asus)
505{
506 int err;
507 struct input_polled_dev *ipd;
508
509 if (!asus->is_pega_lucid)
510 return -ENODEV;
511
512 if (acpi_check_handle(asus->handle, METHOD_XLRX, NULL) ||
513 acpi_check_handle(asus->handle, METHOD_XLRY, NULL) ||
514 acpi_check_handle(asus->handle, METHOD_XLRZ, NULL))
515 return -ENODEV;
516
517 ipd = input_allocate_polled_device();
518 if (!ipd)
519 return -ENOMEM;
520
521 ipd->poll = pega_accel_poll;
522 ipd->poll_interval = 125;
523 ipd->poll_interval_min = 50;
524 ipd->poll_interval_max = 2000;
525
526 ipd->input->name = PEGA_ACCEL_DESC;
527 ipd->input->phys = PEGA_ACCEL_NAME "/input0";
528 ipd->input->dev.parent = &asus->platform_device->dev;
529 ipd->input->id.bustype = BUS_HOST;
530
531 set_bit(EV_ABS, ipd->input->evbit);
532 input_set_abs_params(ipd->input, ABS_X,
533 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
534 input_set_abs_params(ipd->input, ABS_Y,
535 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
536 input_set_abs_params(ipd->input, ABS_Z,
537 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0);
538
539 err = input_register_polled_device(ipd);
540 if (err)
541 goto exit;
542
543 asus->pega_accel_poll = ipd;
544 return 0;
545
546exit:
547 input_free_polled_device(ipd);
548 return err;
549}
550
551/* Generic LED function */
552static int asus_led_set(struct asus_laptop *asus, const char *method,
553 int value)
554{
555 if (!strcmp(method, METHOD_MLED))
556 value = !value;
557 else if (!strcmp(method, METHOD_GLED))
558 value = !value + 1;
559 else
560 value = !!value;
561
562 return write_acpi_int(asus->handle, method, value);
563}
564
565/*
566 * LEDs
567 */
568/* /sys/class/led handlers */
569static void asus_led_cdev_set(struct led_classdev *led_cdev,
570 enum led_brightness value)
571{
572 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
573 struct asus_laptop *asus = led->asus;
574
575 led->wk = !!value;
576 queue_work(asus->led_workqueue, &led->work);
577}
578
579static void asus_led_cdev_update(struct work_struct *work)
580{
581 struct asus_led *led = container_of(work, struct asus_led, work);
582 struct asus_laptop *asus = led->asus;
583
584 asus_led_set(asus, led->method, led->wk);
585}
586
587static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev)
588{
589 return led_cdev->brightness;
590}
591
592/*
593 * Keyboard backlight (also a LED)
594 */
595static int asus_kled_lvl(struct asus_laptop *asus)
596{
597 unsigned long long kblv;
598 struct acpi_object_list params;
599 union acpi_object in_obj;
600 acpi_status rv;
601
602 params.count = 1;
603 params.pointer = &in_obj;
604 in_obj.type = ACPI_TYPE_INTEGER;
605 in_obj.integer.value = 2;
606
607 rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET,
608 ¶ms, &kblv);
609 if (ACPI_FAILURE(rv)) {
610 pr_warn("Error reading kled level\n");
611 return -ENODEV;
612 }
613 return kblv;
614}
615
616static int asus_kled_set(struct asus_laptop *asus, int kblv)
617{
618 if (kblv > 0)
619 kblv = (1 << 7) | (kblv & 0x7F);
620 else
621 kblv = 0;
622
623 if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) {
624 pr_warn("Keyboard LED display write failed\n");
625 return -EINVAL;
626 }
627 return 0;
628}
629
630static void asus_kled_cdev_set(struct led_classdev *led_cdev,
631 enum led_brightness value)
632{
633 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
634 struct asus_laptop *asus = led->asus;
635
636 led->wk = value;
637 queue_work(asus->led_workqueue, &led->work);
638}
639
640static void asus_kled_cdev_update(struct work_struct *work)
641{
642 struct asus_led *led = container_of(work, struct asus_led, work);
643 struct asus_laptop *asus = led->asus;
644
645 asus_kled_set(asus, led->wk);
646}
647
648static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev)
649{
650 struct asus_led *led = container_of(led_cdev, struct asus_led, led);
651 struct asus_laptop *asus = led->asus;
652
653 return asus_kled_lvl(asus);
654}
655
656static void asus_led_exit(struct asus_laptop *asus)
657{
658 if (!IS_ERR_OR_NULL(asus->wled.led.dev))
659 led_classdev_unregister(&asus->wled.led);
660 if (!IS_ERR_OR_NULL(asus->bled.led.dev))
661 led_classdev_unregister(&asus->bled.led);
662 if (!IS_ERR_OR_NULL(asus->mled.led.dev))
663 led_classdev_unregister(&asus->mled.led);
664 if (!IS_ERR_OR_NULL(asus->tled.led.dev))
665 led_classdev_unregister(&asus->tled.led);
666 if (!IS_ERR_OR_NULL(asus->pled.led.dev))
667 led_classdev_unregister(&asus->pled.led);
668 if (!IS_ERR_OR_NULL(asus->rled.led.dev))
669 led_classdev_unregister(&asus->rled.led);
670 if (!IS_ERR_OR_NULL(asus->gled.led.dev))
671 led_classdev_unregister(&asus->gled.led);
672 if (!IS_ERR_OR_NULL(asus->kled.led.dev))
673 led_classdev_unregister(&asus->kled.led);
674 if (asus->led_workqueue) {
675 destroy_workqueue(asus->led_workqueue);
676 asus->led_workqueue = NULL;
677 }
678}
679
680/* Ugly macro, need to fix that later */
681static int asus_led_register(struct asus_laptop *asus,
682 struct asus_led *led,
683 const char *name, const char *method)
684{
685 struct led_classdev *led_cdev = &led->led;
686
687 if (!method || acpi_check_handle(asus->handle, method, NULL))
688 return 0; /* Led not present */
689
690 led->asus = asus;
691 led->method = method;
692
693 INIT_WORK(&led->work, asus_led_cdev_update);
694 led_cdev->name = name;
695 led_cdev->brightness_set = asus_led_cdev_set;
696 led_cdev->brightness_get = asus_led_cdev_get;
697 led_cdev->max_brightness = 1;
698 return led_classdev_register(&asus->platform_device->dev, led_cdev);
699}
700
701static int asus_led_init(struct asus_laptop *asus)
702{
703 int r = 0;
704
705 /*
706 * The Pegatron Lucid has no physical leds, but all methods are
707 * available in the DSDT...
708 */
709 if (asus->is_pega_lucid)
710 return 0;
711
712 /*
713 * Functions that actually update the LED's are called from a
714 * workqueue. By doing this as separate work rather than when the LED
715 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
716 * potentially bad time, such as a timer interrupt.
717 */
718 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
719 if (!asus->led_workqueue)
720 return -ENOMEM;
721
722 if (asus->wled_type == TYPE_LED)
723 r = asus_led_register(asus, &asus->wled, "asus::wlan",
724 METHOD_WLAN);
725 if (r)
726 goto error;
727 if (asus->bled_type == TYPE_LED)
728 r = asus_led_register(asus, &asus->bled, "asus::bluetooth",
729 METHOD_BLUETOOTH);
730 if (r)
731 goto error;
732 r = asus_led_register(asus, &asus->mled, "asus::mail", METHOD_MLED);
733 if (r)
734 goto error;
735 r = asus_led_register(asus, &asus->tled, "asus::touchpad", METHOD_TLED);
736 if (r)
737 goto error;
738 r = asus_led_register(asus, &asus->rled, "asus::record", METHOD_RLED);
739 if (r)
740 goto error;
741 r = asus_led_register(asus, &asus->pled, "asus::phone", METHOD_PLED);
742 if (r)
743 goto error;
744 r = asus_led_register(asus, &asus->gled, "asus::gaming", METHOD_GLED);
745 if (r)
746 goto error;
747 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL) &&
748 !acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL)) {
749 struct asus_led *led = &asus->kled;
750 struct led_classdev *cdev = &led->led;
751
752 led->asus = asus;
753
754 INIT_WORK(&led->work, asus_kled_cdev_update);
755 cdev->name = "asus::kbd_backlight";
756 cdev->brightness_set = asus_kled_cdev_set;
757 cdev->brightness_get = asus_kled_cdev_get;
758 cdev->max_brightness = 3;
759 r = led_classdev_register(&asus->platform_device->dev, cdev);
760 }
761error:
762 if (r)
763 asus_led_exit(asus);
764 return r;
765}
766
767/*
768 * Backlight device
769 */
770static int asus_read_brightness(struct backlight_device *bd)
771{
772 struct asus_laptop *asus = bl_get_data(bd);
773 unsigned long long value;
774 acpi_status rv;
775
776 rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET,
777 NULL, &value);
778 if (ACPI_FAILURE(rv)) {
779 pr_warn("Error reading brightness\n");
780 return 0;
781 }
782
783 return value;
784}
785
786static int asus_set_brightness(struct backlight_device *bd, int value)
787{
788 struct asus_laptop *asus = bl_get_data(bd);
789
790 if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) {
791 pr_warn("Error changing brightness\n");
792 return -EIO;
793 }
794 return 0;
795}
796
797static int update_bl_status(struct backlight_device *bd)
798{
799 int value = bd->props.brightness;
800
801 return asus_set_brightness(bd, value);
802}
803
804static const struct backlight_ops asusbl_ops = {
805 .get_brightness = asus_read_brightness,
806 .update_status = update_bl_status,
807};
808
809static int asus_backlight_notify(struct asus_laptop *asus)
810{
811 struct backlight_device *bd = asus->backlight_device;
812 int old = bd->props.brightness;
813
814 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
815
816 return old;
817}
818
819static int asus_backlight_init(struct asus_laptop *asus)
820{
821 struct backlight_device *bd;
822 struct backlight_properties props;
823
824 if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) ||
825 acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL))
826 return 0;
827
828 memset(&props, 0, sizeof(struct backlight_properties));
829 props.max_brightness = 15;
830 props.type = BACKLIGHT_PLATFORM;
831
832 bd = backlight_device_register(ASUS_LAPTOP_FILE,
833 &asus->platform_device->dev, asus,
834 &asusbl_ops, &props);
835 if (IS_ERR(bd)) {
836 pr_err("Could not register asus backlight device\n");
837 asus->backlight_device = NULL;
838 return PTR_ERR(bd);
839 }
840
841 asus->backlight_device = bd;
842 bd->props.brightness = asus_read_brightness(bd);
843 bd->props.power = FB_BLANK_UNBLANK;
844 backlight_update_status(bd);
845 return 0;
846}
847
848static void asus_backlight_exit(struct asus_laptop *asus)
849{
850 backlight_device_unregister(asus->backlight_device);
851 asus->backlight_device = NULL;
852}
853
854/*
855 * Platform device handlers
856 */
857
858/*
859 * We write our info in page, we begin at offset off and cannot write more
860 * than count bytes. We set eof to 1 if we handle those 2 values. We return the
861 * number of bytes written in page
862 */
863static ssize_t infos_show(struct device *dev, struct device_attribute *attr,
864 char *page)
865{
866 struct asus_laptop *asus = dev_get_drvdata(dev);
867 int len = 0;
868 unsigned long long temp;
869 char buf[16]; /* enough for all info */
870 acpi_status rv;
871
872 /*
873 * We use the easy way, we don't care of off and count,
874 * so we don't set eof to 1
875 */
876
877 len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n");
878 len += sprintf(page + len, "Model reference : %s\n", asus->name);
879 /*
880 * The SFUN method probably allows the original driver to get the list
881 * of features supported by a given model. For now, 0x0100 or 0x0800
882 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
883 * The significance of others is yet to be found.
884 */
885 rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp);
886 if (!ACPI_FAILURE(rv))
887 len += sprintf(page + len, "SFUN value : %#x\n",
888 (uint) temp);
889 /*
890 * The HWRS method return informations about the hardware.
891 * 0x80 bit is for WLAN, 0x100 for Bluetooth.
892 * 0x40 for WWAN, 0x10 for WIMAX.
893 * The significance of others is yet to be found.
894 * We don't currently use this for device detection, and it
895 * takes several seconds to run on some systems.
896 */
897 rv = acpi_evaluate_integer(asus->handle, "HWRS", NULL, &temp);
898 if (!ACPI_FAILURE(rv))
899 len += sprintf(page + len, "HWRS value : %#x\n",
900 (uint) temp);
901 /*
902 * Another value for userspace: the ASYM method returns 0x02 for
903 * battery low and 0x04 for battery critical, its readings tend to be
904 * more accurate than those provided by _BST.
905 * Note: since not all the laptops provide this method, errors are
906 * silently ignored.
907 */
908 rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp);
909 if (!ACPI_FAILURE(rv))
910 len += sprintf(page + len, "ASYM value : %#x\n",
911 (uint) temp);
912 if (asus->dsdt_info) {
913 snprintf(buf, 16, "%d", asus->dsdt_info->length);
914 len += sprintf(page + len, "DSDT length : %s\n", buf);
915 snprintf(buf, 16, "%d", asus->dsdt_info->checksum);
916 len += sprintf(page + len, "DSDT checksum : %s\n", buf);
917 snprintf(buf, 16, "%d", asus->dsdt_info->revision);
918 len += sprintf(page + len, "DSDT revision : %s\n", buf);
919 snprintf(buf, 7, "%s", asus->dsdt_info->oem_id);
920 len += sprintf(page + len, "OEM id : %s\n", buf);
921 snprintf(buf, 9, "%s", asus->dsdt_info->oem_table_id);
922 len += sprintf(page + len, "OEM table id : %s\n", buf);
923 snprintf(buf, 16, "%x", asus->dsdt_info->oem_revision);
924 len += sprintf(page + len, "OEM revision : 0x%s\n", buf);
925 snprintf(buf, 5, "%s", asus->dsdt_info->asl_compiler_id);
926 len += sprintf(page + len, "ASL comp vendor id : %s\n", buf);
927 snprintf(buf, 16, "%x", asus->dsdt_info->asl_compiler_revision);
928 len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf);
929 }
930
931 return len;
932}
933static DEVICE_ATTR_RO(infos);
934
935static ssize_t sysfs_acpi_set(struct asus_laptop *asus,
936 const char *buf, size_t count,
937 const char *method)
938{
939 int rv, value;
940
941 rv = kstrtoint(buf, 0, &value);
942 if (rv < 0)
943 return rv;
944
945 if (write_acpi_int(asus->handle, method, value))
946 return -ENODEV;
947 return count;
948}
949
950/*
951 * LEDD display
952 */
953static ssize_t ledd_show(struct device *dev, struct device_attribute *attr,
954 char *buf)
955{
956 struct asus_laptop *asus = dev_get_drvdata(dev);
957
958 return sprintf(buf, "0x%08x\n", asus->ledd_status);
959}
960
961static ssize_t ledd_store(struct device *dev, struct device_attribute *attr,
962 const char *buf, size_t count)
963{
964 struct asus_laptop *asus = dev_get_drvdata(dev);
965 int rv, value;
966
967 rv = kstrtoint(buf, 0, &value);
968 if (rv < 0)
969 return rv;
970
971 if (write_acpi_int(asus->handle, METHOD_LEDD, value)) {
972 pr_warn("LED display write failed\n");
973 return -ENODEV;
974 }
975
976 asus->ledd_status = (u32) value;
977 return count;
978}
979static DEVICE_ATTR_RW(ledd);
980
981/*
982 * Wireless
983 */
984static int asus_wireless_status(struct asus_laptop *asus, int mask)
985{
986 unsigned long long status;
987 acpi_status rv = AE_OK;
988
989 if (!asus->have_rsts)
990 return (asus->wireless_status & mask) ? 1 : 0;
991
992 rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS,
993 NULL, &status);
994 if (ACPI_FAILURE(rv)) {
995 pr_warn("Error reading Wireless status\n");
996 return -EINVAL;
997 }
998 return !!(status & mask);
999}
1000
1001/*
1002 * WLAN
1003 */
1004static int asus_wlan_set(struct asus_laptop *asus, int status)
1005{
1006 if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) {
1007 pr_warn("Error setting wlan status to %d\n", status);
1008 return -EIO;
1009 }
1010 return 0;
1011}
1012
1013static ssize_t wlan_show(struct device *dev, struct device_attribute *attr,
1014 char *buf)
1015{
1016 struct asus_laptop *asus = dev_get_drvdata(dev);
1017
1018 return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS));
1019}
1020
1021static ssize_t wlan_store(struct device *dev, struct device_attribute *attr,
1022 const char *buf, size_t count)
1023{
1024 struct asus_laptop *asus = dev_get_drvdata(dev);
1025
1026 return sysfs_acpi_set(asus, buf, count, METHOD_WLAN);
1027}
1028static DEVICE_ATTR_RW(wlan);
1029
1030/*e
1031 * Bluetooth
1032 */
1033static int asus_bluetooth_set(struct asus_laptop *asus, int status)
1034{
1035 if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) {
1036 pr_warn("Error setting bluetooth status to %d\n", status);
1037 return -EIO;
1038 }
1039 return 0;
1040}
1041
1042static ssize_t bluetooth_show(struct device *dev, struct device_attribute *attr,
1043 char *buf)
1044{
1045 struct asus_laptop *asus = dev_get_drvdata(dev);
1046
1047 return sprintf(buf, "%d\n", asus_wireless_status(asus, BT_RSTS));
1048}
1049
1050static ssize_t bluetooth_store(struct device *dev,
1051 struct device_attribute *attr, const char *buf,
1052 size_t count)
1053{
1054 struct asus_laptop *asus = dev_get_drvdata(dev);
1055
1056 return sysfs_acpi_set(asus, buf, count, METHOD_BLUETOOTH);
1057}
1058static DEVICE_ATTR_RW(bluetooth);
1059
1060/*
1061 * Wimax
1062 */
1063static int asus_wimax_set(struct asus_laptop *asus, int status)
1064{
1065 if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) {
1066 pr_warn("Error setting wimax status to %d\n", status);
1067 return -EIO;
1068 }
1069 return 0;
1070}
1071
1072static ssize_t wimax_show(struct device *dev, struct device_attribute *attr,
1073 char *buf)
1074{
1075 struct asus_laptop *asus = dev_get_drvdata(dev);
1076
1077 return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS));
1078}
1079
1080static ssize_t wimax_store(struct device *dev, struct device_attribute *attr,
1081 const char *buf, size_t count)
1082{
1083 struct asus_laptop *asus = dev_get_drvdata(dev);
1084
1085 return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX);
1086}
1087static DEVICE_ATTR_RW(wimax);
1088
1089/*
1090 * Wwan
1091 */
1092static int asus_wwan_set(struct asus_laptop *asus, int status)
1093{
1094 if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) {
1095 pr_warn("Error setting wwan status to %d\n", status);
1096 return -EIO;
1097 }
1098 return 0;
1099}
1100
1101static ssize_t wwan_show(struct device *dev, struct device_attribute *attr,
1102 char *buf)
1103{
1104 struct asus_laptop *asus = dev_get_drvdata(dev);
1105
1106 return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS));
1107}
1108
1109static ssize_t wwan_store(struct device *dev, struct device_attribute *attr,
1110 const char *buf, size_t count)
1111{
1112 struct asus_laptop *asus = dev_get_drvdata(dev);
1113
1114 return sysfs_acpi_set(asus, buf, count, METHOD_WWAN);
1115}
1116static DEVICE_ATTR_RW(wwan);
1117
1118/*
1119 * Display
1120 */
1121static void asus_set_display(struct asus_laptop *asus, int value)
1122{
1123 /* no sanity check needed for now */
1124 if (write_acpi_int(asus->handle, METHOD_SWITCH_DISPLAY, value))
1125 pr_warn("Error setting display\n");
1126 return;
1127}
1128
1129/*
1130 * Experimental support for display switching. As of now: 1 should activate
1131 * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI.
1132 * Any combination (bitwise) of these will suffice. I never actually tested 4
1133 * displays hooked up simultaneously, so be warned. See the acpi4asus README
1134 * for more info.
1135 */
1136static ssize_t display_store(struct device *dev, struct device_attribute *attr,
1137 const char *buf, size_t count)
1138{
1139 struct asus_laptop *asus = dev_get_drvdata(dev);
1140 int rv, value;
1141
1142 rv = kstrtoint(buf, 0, &value);
1143 if (rv < 0)
1144 return rv;
1145
1146 asus_set_display(asus, value);
1147 return count;
1148}
1149static DEVICE_ATTR_WO(display);
1150
1151/*
1152 * Light Sens
1153 */
1154static void asus_als_switch(struct asus_laptop *asus, int value)
1155{
1156 int ret;
1157
1158 if (asus->is_pega_lucid) {
1159 ret = asus_pega_lucid_set(asus, PEGA_ALS, value);
1160 if (!ret)
1161 ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value);
1162 } else {
1163 ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value);
1164 }
1165 if (ret)
1166 pr_warning("Error setting light sensor switch\n");
1167
1168 asus->light_switch = value;
1169}
1170
1171static ssize_t ls_switch_show(struct device *dev, struct device_attribute *attr,
1172 char *buf)
1173{
1174 struct asus_laptop *asus = dev_get_drvdata(dev);
1175
1176 return sprintf(buf, "%d\n", asus->light_switch);
1177}
1178
1179static ssize_t ls_switch_store(struct device *dev,
1180 struct device_attribute *attr, const char *buf,
1181 size_t count)
1182{
1183 struct asus_laptop *asus = dev_get_drvdata(dev);
1184 int rv, value;
1185
1186 rv = kstrtoint(buf, 0, &value);
1187 if (rv < 0)
1188 return rv;
1189
1190 asus_als_switch(asus, value ? 1 : 0);
1191 return count;
1192}
1193static DEVICE_ATTR_RW(ls_switch);
1194
1195static void asus_als_level(struct asus_laptop *asus, int value)
1196{
1197 if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value))
1198 pr_warn("Error setting light sensor level\n");
1199 asus->light_level = value;
1200}
1201
1202static ssize_t ls_level_show(struct device *dev, struct device_attribute *attr,
1203 char *buf)
1204{
1205 struct asus_laptop *asus = dev_get_drvdata(dev);
1206
1207 return sprintf(buf, "%d\n", asus->light_level);
1208}
1209
1210static ssize_t ls_level_store(struct device *dev, struct device_attribute *attr,
1211 const char *buf, size_t count)
1212{
1213 struct asus_laptop *asus = dev_get_drvdata(dev);
1214 int rv, value;
1215
1216 rv = kstrtoint(buf, 0, &value);
1217 if (rv < 0)
1218 return rv;
1219
1220 value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
1221 /* 0 <= value <= 15 */
1222 asus_als_level(asus, value);
1223
1224 return count;
1225}
1226static DEVICE_ATTR_RW(ls_level);
1227
1228static int pega_int_read(struct asus_laptop *asus, int arg, int *result)
1229{
1230 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1231 int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg,
1232 &buffer);
1233 if (!err) {
1234 union acpi_object *obj = buffer.pointer;
1235 if (obj && obj->type == ACPI_TYPE_INTEGER)
1236 *result = obj->integer.value;
1237 else
1238 err = -EIO;
1239 }
1240 return err;
1241}
1242
1243static ssize_t ls_value_show(struct device *dev, struct device_attribute *attr,
1244 char *buf)
1245{
1246 struct asus_laptop *asus = dev_get_drvdata(dev);
1247 int err, hi, lo;
1248
1249 err = pega_int_read(asus, PEGA_READ_ALS_H, &hi);
1250 if (!err)
1251 err = pega_int_read(asus, PEGA_READ_ALS_L, &lo);
1252 if (!err)
1253 return sprintf(buf, "%d\n", 10 * hi + lo);
1254 return err;
1255}
1256static DEVICE_ATTR_RO(ls_value);
1257
1258/*
1259 * GPS
1260 */
1261static int asus_gps_status(struct asus_laptop *asus)
1262{
1263 unsigned long long status;
1264 acpi_status rv;
1265
1266 rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS,
1267 NULL, &status);
1268 if (ACPI_FAILURE(rv)) {
1269 pr_warn("Error reading GPS status\n");
1270 return -ENODEV;
1271 }
1272 return !!status;
1273}
1274
1275static int asus_gps_switch(struct asus_laptop *asus, int status)
1276{
1277 const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF;
1278
1279 if (write_acpi_int(asus->handle, meth, 0x02))
1280 return -ENODEV;
1281 return 0;
1282}
1283
1284static ssize_t gps_show(struct device *dev, struct device_attribute *attr,
1285 char *buf)
1286{
1287 struct asus_laptop *asus = dev_get_drvdata(dev);
1288
1289 return sprintf(buf, "%d\n", asus_gps_status(asus));
1290}
1291
1292static ssize_t gps_store(struct device *dev, struct device_attribute *attr,
1293 const char *buf, size_t count)
1294{
1295 struct asus_laptop *asus = dev_get_drvdata(dev);
1296 int rv, value;
1297 int ret;
1298
1299 rv = kstrtoint(buf, 0, &value);
1300 if (rv < 0)
1301 return rv;
1302 ret = asus_gps_switch(asus, !!value);
1303 if (ret)
1304 return ret;
1305 rfkill_set_sw_state(asus->gps.rfkill, !value);
1306 return count;
1307}
1308static DEVICE_ATTR_RW(gps);
1309
1310/*
1311 * rfkill
1312 */
1313static int asus_gps_rfkill_set(void *data, bool blocked)
1314{
1315 struct asus_laptop *asus = data;
1316
1317 return asus_gps_switch(asus, !blocked);
1318}
1319
1320static const struct rfkill_ops asus_gps_rfkill_ops = {
1321 .set_block = asus_gps_rfkill_set,
1322};
1323
1324static int asus_rfkill_set(void *data, bool blocked)
1325{
1326 struct asus_rfkill *rfk = data;
1327 struct asus_laptop *asus = rfk->asus;
1328
1329 if (rfk->control_id == WL_RSTS)
1330 return asus_wlan_set(asus, !blocked);
1331 else if (rfk->control_id == BT_RSTS)
1332 return asus_bluetooth_set(asus, !blocked);
1333 else if (rfk->control_id == WM_RSTS)
1334 return asus_wimax_set(asus, !blocked);
1335 else if (rfk->control_id == WW_RSTS)
1336 return asus_wwan_set(asus, !blocked);
1337
1338 return -EINVAL;
1339}
1340
1341static const struct rfkill_ops asus_rfkill_ops = {
1342 .set_block = asus_rfkill_set,
1343};
1344
1345static void asus_rfkill_terminate(struct asus_rfkill *rfk)
1346{
1347 if (!rfk->rfkill)
1348 return ;
1349
1350 rfkill_unregister(rfk->rfkill);
1351 rfkill_destroy(rfk->rfkill);
1352 rfk->rfkill = NULL;
1353}
1354
1355static void asus_rfkill_exit(struct asus_laptop *asus)
1356{
1357 asus_rfkill_terminate(&asus->wwan);
1358 asus_rfkill_terminate(&asus->bluetooth);
1359 asus_rfkill_terminate(&asus->wlan);
1360 asus_rfkill_terminate(&asus->gps);
1361}
1362
1363static int asus_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
1364 const char *name, int control_id, int type,
1365 const struct rfkill_ops *ops)
1366{
1367 int result;
1368
1369 rfk->control_id = control_id;
1370 rfk->asus = asus;
1371 rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev,
1372 type, ops, rfk);
1373 if (!rfk->rfkill)
1374 return -EINVAL;
1375
1376 result = rfkill_register(rfk->rfkill);
1377 if (result) {
1378 rfkill_destroy(rfk->rfkill);
1379 rfk->rfkill = NULL;
1380 }
1381
1382 return result;
1383}
1384
1385static int asus_rfkill_init(struct asus_laptop *asus)
1386{
1387 int result = 0;
1388
1389 if (asus->is_pega_lucid)
1390 return -ENODEV;
1391
1392 if (!acpi_check_handle(asus->handle, METHOD_GPS_ON, NULL) &&
1393 !acpi_check_handle(asus->handle, METHOD_GPS_OFF, NULL) &&
1394 !acpi_check_handle(asus->handle, METHOD_GPS_STATUS, NULL))
1395 result = asus_rfkill_setup(asus, &asus->gps, "asus-gps",
1396 -1, RFKILL_TYPE_GPS,
1397 &asus_gps_rfkill_ops);
1398 if (result)
1399 goto exit;
1400
1401
1402 if (!acpi_check_handle(asus->handle, METHOD_WLAN, NULL) &&
1403 asus->wled_type == TYPE_RFKILL)
1404 result = asus_rfkill_setup(asus, &asus->wlan, "asus-wlan",
1405 WL_RSTS, RFKILL_TYPE_WLAN,
1406 &asus_rfkill_ops);
1407 if (result)
1408 goto exit;
1409
1410 if (!acpi_check_handle(asus->handle, METHOD_BLUETOOTH, NULL) &&
1411 asus->bled_type == TYPE_RFKILL)
1412 result = asus_rfkill_setup(asus, &asus->bluetooth,
1413 "asus-bluetooth", BT_RSTS,
1414 RFKILL_TYPE_BLUETOOTH,
1415 &asus_rfkill_ops);
1416 if (result)
1417 goto exit;
1418
1419 if (!acpi_check_handle(asus->handle, METHOD_WWAN, NULL))
1420 result = asus_rfkill_setup(asus, &asus->wwan, "asus-wwan",
1421 WW_RSTS, RFKILL_TYPE_WWAN,
1422 &asus_rfkill_ops);
1423 if (result)
1424 goto exit;
1425
1426 if (!acpi_check_handle(asus->handle, METHOD_WIMAX, NULL))
1427 result = asus_rfkill_setup(asus, &asus->wimax, "asus-wimax",
1428 WM_RSTS, RFKILL_TYPE_WIMAX,
1429 &asus_rfkill_ops);
1430 if (result)
1431 goto exit;
1432
1433exit:
1434 if (result)
1435 asus_rfkill_exit(asus);
1436
1437 return result;
1438}
1439
1440static int pega_rfkill_set(void *data, bool blocked)
1441{
1442 struct asus_rfkill *rfk = data;
1443
1444 int ret = asus_pega_lucid_set(rfk->asus, rfk->control_id, !blocked);
1445 return ret;
1446}
1447
1448static const struct rfkill_ops pega_rfkill_ops = {
1449 .set_block = pega_rfkill_set,
1450};
1451
1452static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
1453 const char *name, int controlid, int rfkill_type)
1454{
1455 return asus_rfkill_setup(asus, rfk, name, controlid, rfkill_type,
1456 &pega_rfkill_ops);
1457}
1458
1459static int pega_rfkill_init(struct asus_laptop *asus)
1460{
1461 int ret = 0;
1462
1463 if(!asus->is_pega_lucid)
1464 return -ENODEV;
1465
1466 ret = pega_rfkill_setup(asus, &asus->wlan, "pega-wlan",
1467 PEGA_WLAN, RFKILL_TYPE_WLAN);
1468 if(ret)
1469 goto exit;
1470
1471 ret = pega_rfkill_setup(asus, &asus->bluetooth, "pega-bt",
1472 PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH);
1473 if(ret)
1474 goto exit;
1475
1476 ret = pega_rfkill_setup(asus, &asus->wwan, "pega-wwan",
1477 PEGA_WWAN, RFKILL_TYPE_WWAN);
1478
1479exit:
1480 if (ret)
1481 asus_rfkill_exit(asus);
1482
1483 return ret;
1484}
1485
1486/*
1487 * Input device (i.e. hotkeys)
1488 */
1489static void asus_input_notify(struct asus_laptop *asus, int event)
1490{
1491 if (!asus->inputdev)
1492 return ;
1493 if (!sparse_keymap_report_event(asus->inputdev, event, 1, true))
1494 pr_info("Unknown key %x pressed\n", event);
1495}
1496
1497static int asus_input_init(struct asus_laptop *asus)
1498{
1499 struct input_dev *input;
1500 int error;
1501
1502 input = input_allocate_device();
1503 if (!input)
1504 return -ENOMEM;
1505
1506 input->name = "Asus Laptop extra buttons";
1507 input->phys = ASUS_LAPTOP_FILE "/input0";
1508 input->id.bustype = BUS_HOST;
1509 input->dev.parent = &asus->platform_device->dev;
1510
1511 error = sparse_keymap_setup(input, asus_keymap, NULL);
1512 if (error) {
1513 pr_err("Unable to setup input device keymap\n");
1514 goto err_free_dev;
1515 }
1516 error = input_register_device(input);
1517 if (error) {
1518 pr_warn("Unable to register input device\n");
1519 goto err_free_dev;
1520 }
1521
1522 asus->inputdev = input;
1523 return 0;
1524
1525err_free_dev:
1526 input_free_device(input);
1527 return error;
1528}
1529
1530static void asus_input_exit(struct asus_laptop *asus)
1531{
1532 if (asus->inputdev)
1533 input_unregister_device(asus->inputdev);
1534 asus->inputdev = NULL;
1535}
1536
1537/*
1538 * ACPI driver
1539 */
1540static void asus_acpi_notify(struct acpi_device *device, u32 event)
1541{
1542 struct asus_laptop *asus = acpi_driver_data(device);
1543 u16 count;
1544
1545 /* TODO Find a better way to handle events count. */
1546 count = asus->event_count[event % 128]++;
1547 acpi_bus_generate_netlink_event(asus->device->pnp.device_class,
1548 dev_name(&asus->device->dev), event,
1549 count);
1550
1551 if (event >= ATKD_BRNUP_MIN && event <= ATKD_BRNUP_MAX)
1552 event = ATKD_BRNUP;
1553 else if (event >= ATKD_BRNDOWN_MIN &&
1554 event <= ATKD_BRNDOWN_MAX)
1555 event = ATKD_BRNDOWN;
1556
1557 /* Brightness events are special */
1558 if (event == ATKD_BRNDOWN || event == ATKD_BRNUP) {
1559 if (asus->backlight_device != NULL) {
1560 /* Update the backlight device. */
1561 asus_backlight_notify(asus);
1562 return ;
1563 }
1564 }
1565
1566 /* Accelerometer "coarse orientation change" event */
1567 if (asus->pega_accel_poll && event == 0xEA) {
1568 kobject_uevent(&asus->pega_accel_poll->input->dev.kobj,
1569 KOBJ_CHANGE);
1570 return ;
1571 }
1572
1573 asus_input_notify(asus, event);
1574}
1575
1576static struct attribute *asus_attributes[] = {
1577 &dev_attr_infos.attr,
1578 &dev_attr_wlan.attr,
1579 &dev_attr_bluetooth.attr,
1580 &dev_attr_wimax.attr,
1581 &dev_attr_wwan.attr,
1582 &dev_attr_display.attr,
1583 &dev_attr_ledd.attr,
1584 &dev_attr_ls_value.attr,
1585 &dev_attr_ls_level.attr,
1586 &dev_attr_ls_switch.attr,
1587 &dev_attr_gps.attr,
1588 NULL
1589};
1590
1591static umode_t asus_sysfs_is_visible(struct kobject *kobj,
1592 struct attribute *attr,
1593 int idx)
1594{
1595 struct device *dev = container_of(kobj, struct device, kobj);
1596 struct platform_device *pdev = to_platform_device(dev);
1597 struct asus_laptop *asus = platform_get_drvdata(pdev);
1598 acpi_handle handle = asus->handle;
1599 bool supported;
1600
1601 if (asus->is_pega_lucid) {
1602 /* no ls_level interface on the Lucid */
1603 if (attr == &dev_attr_ls_switch.attr)
1604 supported = true;
1605 else if (attr == &dev_attr_ls_level.attr)
1606 supported = false;
1607 else
1608 goto normal;
1609
1610 return supported ? attr->mode : 0;
1611 }
1612
1613normal:
1614 if (attr == &dev_attr_wlan.attr) {
1615 supported = !acpi_check_handle(handle, METHOD_WLAN, NULL);
1616
1617 } else if (attr == &dev_attr_bluetooth.attr) {
1618 supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL);
1619
1620 } else if (attr == &dev_attr_display.attr) {
1621 supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL);
1622
1623 } else if (attr == &dev_attr_wimax.attr) {
1624 supported =
1625 !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL);
1626
1627 } else if (attr == &dev_attr_wwan.attr) {
1628 supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL);
1629
1630 } else if (attr == &dev_attr_ledd.attr) {
1631 supported = !acpi_check_handle(handle, METHOD_LEDD, NULL);
1632
1633 } else if (attr == &dev_attr_ls_switch.attr ||
1634 attr == &dev_attr_ls_level.attr) {
1635 supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) &&
1636 !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL);
1637 } else if (attr == &dev_attr_ls_value.attr) {
1638 supported = asus->is_pega_lucid;
1639 } else if (attr == &dev_attr_gps.attr) {
1640 supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) &&
1641 !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) &&
1642 !acpi_check_handle(handle, METHOD_GPS_STATUS, NULL);
1643 } else {
1644 supported = true;
1645 }
1646
1647 return supported ? attr->mode : 0;
1648}
1649
1650
1651static const struct attribute_group asus_attr_group = {
1652 .is_visible = asus_sysfs_is_visible,
1653 .attrs = asus_attributes,
1654};
1655
1656static int asus_platform_init(struct asus_laptop *asus)
1657{
1658 int result;
1659
1660 asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, -1);
1661 if (!asus->platform_device)
1662 return -ENOMEM;
1663 platform_set_drvdata(asus->platform_device, asus);
1664
1665 result = platform_device_add(asus->platform_device);
1666 if (result)
1667 goto fail_platform_device;
1668
1669 result = sysfs_create_group(&asus->platform_device->dev.kobj,
1670 &asus_attr_group);
1671 if (result)
1672 goto fail_sysfs;
1673
1674 return 0;
1675
1676fail_sysfs:
1677 platform_device_del(asus->platform_device);
1678fail_platform_device:
1679 platform_device_put(asus->platform_device);
1680 return result;
1681}
1682
1683static void asus_platform_exit(struct asus_laptop *asus)
1684{
1685 sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group);
1686 platform_device_unregister(asus->platform_device);
1687}
1688
1689static struct platform_driver platform_driver = {
1690 .driver = {
1691 .name = ASUS_LAPTOP_FILE,
1692 },
1693};
1694
1695/*
1696 * This function is used to initialize the context with right values. In this
1697 * method, we can make all the detection we want, and modify the asus_laptop
1698 * struct
1699 */
1700static int asus_laptop_get_info(struct asus_laptop *asus)
1701{
1702 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1703 union acpi_object *model = NULL;
1704 unsigned long long bsts_result;
1705 char *string = NULL;
1706 acpi_status status;
1707
1708 /*
1709 * Get DSDT headers early enough to allow for differentiating between
1710 * models, but late enough to allow acpi_bus_register_driver() to fail
1711 * before doing anything ACPI-specific. Should we encounter a machine,
1712 * which needs special handling (i.e. its hotkey device has a different
1713 * HID), this bit will be moved.
1714 */
1715 status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info);
1716 if (ACPI_FAILURE(status))
1717 pr_warn("Couldn't get the DSDT table header\n");
1718
1719 /* We have to write 0 on init this far for all ASUS models */
1720 if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) {
1721 pr_err("Hotkey initialization failed\n");
1722 return -ENODEV;
1723 }
1724
1725 /* This needs to be called for some laptops to init properly */
1726 status =
1727 acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result);
1728 if (ACPI_FAILURE(status))
1729 pr_warn("Error calling BSTS\n");
1730 else if (bsts_result)
1731 pr_notice("BSTS called, 0x%02x returned\n",
1732 (uint) bsts_result);
1733
1734 /* This too ... */
1735 if (write_acpi_int(asus->handle, "CWAP", wapf))
1736 pr_err("Error calling CWAP(%d)\n", wapf);
1737 /*
1738 * Try to match the object returned by INIT to the specific model.
1739 * Handle every possible object (or the lack of thereof) the DSDT
1740 * writers might throw at us. When in trouble, we pass NULL to
1741 * asus_model_match() and try something completely different.
1742 */
1743 if (buffer.pointer) {
1744 model = buffer.pointer;
1745 switch (model->type) {
1746 case ACPI_TYPE_STRING:
1747 string = model->string.pointer;
1748 break;
1749 case ACPI_TYPE_BUFFER:
1750 string = model->buffer.pointer;
1751 break;
1752 default:
1753 string = "";
1754 break;
1755 }
1756 }
1757 asus->name = kstrdup(string, GFP_KERNEL);
1758 if (!asus->name) {
1759 kfree(buffer.pointer);
1760 return -ENOMEM;
1761 }
1762
1763 if (string)
1764 pr_notice(" %s model detected\n", string);
1765
1766 if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL))
1767 asus->have_rsts = true;
1768
1769 kfree(model);
1770
1771 return AE_OK;
1772}
1773
1774static int asus_acpi_init(struct asus_laptop *asus)
1775{
1776 int result = 0;
1777
1778 result = acpi_bus_get_status(asus->device);
1779 if (result)
1780 return result;
1781 if (!asus->device->status.present) {
1782 pr_err("Hotkey device not present, aborting\n");
1783 return -ENODEV;
1784 }
1785
1786 result = asus_laptop_get_info(asus);
1787 if (result)
1788 return result;
1789
1790 if (!strcmp(bled_type, "led"))
1791 asus->bled_type = TYPE_LED;
1792 else if (!strcmp(bled_type, "rfkill"))
1793 asus->bled_type = TYPE_RFKILL;
1794
1795 if (!strcmp(wled_type, "led"))
1796 asus->wled_type = TYPE_LED;
1797 else if (!strcmp(wled_type, "rfkill"))
1798 asus->wled_type = TYPE_RFKILL;
1799
1800 if (bluetooth_status >= 0)
1801 asus_bluetooth_set(asus, !!bluetooth_status);
1802
1803 if (wlan_status >= 0)
1804 asus_wlan_set(asus, !!wlan_status);
1805
1806 if (wimax_status >= 0)
1807 asus_wimax_set(asus, !!wimax_status);
1808
1809 if (wwan_status >= 0)
1810 asus_wwan_set(asus, !!wwan_status);
1811
1812 /* Keyboard Backlight is on by default */
1813 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL))
1814 asus_kled_set(asus, 1);
1815
1816 /* LED display is off by default */
1817 asus->ledd_status = 0xFFF;
1818
1819 /* Set initial values of light sensor and level */
1820 asus->light_switch = !!als_status;
1821 asus->light_level = 5; /* level 5 for sensor sensitivity */
1822
1823 if (asus->is_pega_lucid) {
1824 asus_als_switch(asus, asus->light_switch);
1825 } else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) &&
1826 !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) {
1827 asus_als_switch(asus, asus->light_switch);
1828 asus_als_level(asus, asus->light_level);
1829 }
1830
1831 return result;
1832}
1833
1834static void asus_dmi_check(void)
1835{
1836 const char *model;
1837
1838 model = dmi_get_system_info(DMI_PRODUCT_NAME);
1839 if (!model)
1840 return;
1841
1842 /* On L1400B WLED control the sound card, don't mess with it ... */
1843 if (strncmp(model, "L1400B", 6) == 0) {
1844 wlan_status = -1;
1845 }
1846}
1847
1848static bool asus_device_present;
1849
1850static int asus_acpi_add(struct acpi_device *device)
1851{
1852 struct asus_laptop *asus;
1853 int result;
1854
1855 pr_notice("Asus Laptop Support version %s\n",
1856 ASUS_LAPTOP_VERSION);
1857 asus = kzalloc(sizeof(struct asus_laptop), GFP_KERNEL);
1858 if (!asus)
1859 return -ENOMEM;
1860 asus->handle = device->handle;
1861 strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME);
1862 strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS);
1863 device->driver_data = asus;
1864 asus->device = device;
1865
1866 asus_dmi_check();
1867
1868 result = asus_acpi_init(asus);
1869 if (result)
1870 goto fail_platform;
1871
1872 /*
1873 * Need platform type detection first, then the platform
1874 * device. It is used as a parent for the sub-devices below.
1875 */
1876 asus->is_pega_lucid = asus_check_pega_lucid(asus);
1877 result = asus_platform_init(asus);
1878 if (result)
1879 goto fail_platform;
1880
1881 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1882 result = asus_backlight_init(asus);
1883 if (result)
1884 goto fail_backlight;
1885 }
1886
1887 result = asus_input_init(asus);
1888 if (result)
1889 goto fail_input;
1890
1891 result = asus_led_init(asus);
1892 if (result)
1893 goto fail_led;
1894
1895 result = asus_rfkill_init(asus);
1896 if (result && result != -ENODEV)
1897 goto fail_rfkill;
1898
1899 result = pega_accel_init(asus);
1900 if (result && result != -ENODEV)
1901 goto fail_pega_accel;
1902
1903 result = pega_rfkill_init(asus);
1904 if (result && result != -ENODEV)
1905 goto fail_pega_rfkill;
1906
1907 asus_device_present = true;
1908 return 0;
1909
1910fail_pega_rfkill:
1911 pega_accel_exit(asus);
1912fail_pega_accel:
1913 asus_rfkill_exit(asus);
1914fail_rfkill:
1915 asus_led_exit(asus);
1916fail_led:
1917 asus_input_exit(asus);
1918fail_input:
1919 asus_backlight_exit(asus);
1920fail_backlight:
1921 asus_platform_exit(asus);
1922fail_platform:
1923 kfree(asus);
1924
1925 return result;
1926}
1927
1928static int asus_acpi_remove(struct acpi_device *device)
1929{
1930 struct asus_laptop *asus = acpi_driver_data(device);
1931
1932 asus_backlight_exit(asus);
1933 asus_rfkill_exit(asus);
1934 asus_led_exit(asus);
1935 asus_input_exit(asus);
1936 pega_accel_exit(asus);
1937 asus_platform_exit(asus);
1938
1939 kfree(asus->name);
1940 kfree(asus);
1941 return 0;
1942}
1943
1944static const struct acpi_device_id asus_device_ids[] = {
1945 {"ATK0100", 0},
1946 {"ATK0101", 0},
1947 {"", 0},
1948};
1949MODULE_DEVICE_TABLE(acpi, asus_device_ids);
1950
1951static struct acpi_driver asus_acpi_driver = {
1952 .name = ASUS_LAPTOP_NAME,
1953 .class = ASUS_LAPTOP_CLASS,
1954 .owner = THIS_MODULE,
1955 .ids = asus_device_ids,
1956 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1957 .ops = {
1958 .add = asus_acpi_add,
1959 .remove = asus_acpi_remove,
1960 .notify = asus_acpi_notify,
1961 },
1962};
1963
1964static int __init asus_laptop_init(void)
1965{
1966 int result;
1967
1968 result = platform_driver_register(&platform_driver);
1969 if (result < 0)
1970 return result;
1971
1972 result = acpi_bus_register_driver(&asus_acpi_driver);
1973 if (result < 0)
1974 goto fail_acpi_driver;
1975 if (!asus_device_present) {
1976 result = -ENODEV;
1977 goto fail_no_device;
1978 }
1979 return 0;
1980
1981fail_no_device:
1982 acpi_bus_unregister_driver(&asus_acpi_driver);
1983fail_acpi_driver:
1984 platform_driver_unregister(&platform_driver);
1985 return result;
1986}
1987
1988static void __exit asus_laptop_exit(void)
1989{
1990 acpi_bus_unregister_driver(&asus_acpi_driver);
1991 platform_driver_unregister(&platform_driver);
1992}
1993
1994module_init(asus_laptop_init);
1995module_exit(asus_laptop_exit);