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Corentin Chary85091b72007-01-26 14:04:30 +01001/*
2 * asus-laptop.c - Asus Laptop Support
3 *
4 *
5 * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor
Corentin Chary8ec555c2007-03-11 10:28:03 +01006 * Copyright (C) 2006-2007 Corentin Chary
Corentin Chary85091b72007-01-26 14:04:30 +01007 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 *
23 * The development page for this driver is located at
24 * http://sourceforge.net/projects/acpi4asus/
25 *
26 * Credits:
27 * Pontus Fuchs - Helper functions, cleanup
28 * Johann Wiesner - Small compile fixes
29 * John Belmonte - ACPI code for Toshiba laptop was a good starting point.
30 * Eric Burghard - LED display support for W1N
31 * Josh Green - Light Sens support
32 * Thomas Tuttle - His first patch for led support was very helpfull
Corentin Charye539c2f2007-05-06 14:47:06 +020033 * Sam Lin - GPS support
Corentin Chary85091b72007-01-26 14:04:30 +010034 */
35
Corentin Chary85091b72007-01-26 14:04:30 +010036#include <linux/kernel.h>
37#include <linux/module.h>
38#include <linux/init.h>
39#include <linux/types.h>
40#include <linux/err.h>
41#include <linux/proc_fs.h>
Corentin Chary6b7091e2007-01-26 14:04:45 +010042#include <linux/backlight.h>
43#include <linux/fb.h>
Corentin Charybe18cda2007-01-26 14:04:35 +010044#include <linux/leds.h>
Corentin Chary85091b72007-01-26 14:04:30 +010045#include <linux/platform_device.h>
46#include <acpi/acpi_drivers.h>
47#include <acpi/acpi_bus.h>
48#include <asm/uaccess.h>
49
Corentin Charyf3985322007-05-06 14:48:22 +020050#define ASUS_LAPTOP_VERSION "0.42"
Corentin Chary85091b72007-01-26 14:04:30 +010051
52#define ASUS_HOTK_NAME "Asus Laptop Support"
53#define ASUS_HOTK_CLASS "hotkey"
54#define ASUS_HOTK_DEVICE_NAME "Hotkey"
Corentin Chary85091b72007-01-26 14:04:30 +010055#define ASUS_HOTK_FILE "asus-laptop"
56#define ASUS_HOTK_PREFIX "\\_SB.ATKD."
57
Corentin Charybe18cda2007-01-26 14:04:35 +010058/*
Corentin Chary6b7091e2007-01-26 14:04:45 +010059 * Some events we use, same for all Asus
60 */
61#define ATKD_BR_UP 0x10
62#define ATKD_BR_DOWN 0x20
63#define ATKD_LCD_ON 0x33
64#define ATKD_LCD_OFF 0x34
65
66/*
Corentin Chary4564de12007-01-26 14:04:40 +010067 * Known bits returned by \_SB.ATKD.HWRS
Corentin Charybe18cda2007-01-26 14:04:35 +010068 */
Corentin Chary4564de12007-01-26 14:04:40 +010069#define WL_HWRS 0x80
70#define BT_HWRS 0x100
71
72/*
73 * Flags for hotk status
74 * WL_ON and BT_ON are also used for wireless_status()
75 */
76#define WL_ON 0x01 //internal Wifi
77#define BT_ON 0x02 //internal Bluetooth
Corentin Charybe18cda2007-01-26 14:04:35 +010078#define MLED_ON 0x04 //mail LED
79#define TLED_ON 0x08 //touchpad LED
Len Brown8def05f2007-01-30 01:46:43 -050080#define RLED_ON 0x10 //Record LED
81#define PLED_ON 0x20 //Phone LED
Corentin Charyfdd8d082007-03-11 10:26:48 +010082#define GLED_ON 0x40 //Gaming LED
83#define LCD_ON 0x80 //LCD backlight
Corentin Charyf3985322007-05-06 14:48:22 +020084#define GPS_ON 0x100 //GPS
Corentin Charybe18cda2007-01-26 14:04:35 +010085
Corentin Chary85091b72007-01-26 14:04:30 +010086#define ASUS_LOG ASUS_HOTK_FILE ": "
87#define ASUS_ERR KERN_ERR ASUS_LOG
88#define ASUS_WARNING KERN_WARNING ASUS_LOG
89#define ASUS_NOTICE KERN_NOTICE ASUS_LOG
90#define ASUS_INFO KERN_INFO ASUS_LOG
91#define ASUS_DEBUG KERN_DEBUG ASUS_LOG
92
93MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary");
94MODULE_DESCRIPTION(ASUS_HOTK_NAME);
95MODULE_LICENSE("GPL");
96
Corentin Chary185e5af2007-03-11 10:27:33 +010097/* WAPF defines the behavior of the Fn+Fx wlan key
98 * The significance of values is yet to be found, but
99 * most of the time:
100 * 0x0 will do nothing
101 * 0x1 will allow to control the device with Fn+Fx key.
102 * 0x4 will send an ACPI event (0x88) while pressing the Fn+Fx key
103 * 0x5 like 0x1 or 0x4
104 * So, if something doesn't work as you want, just try other values =)
105 */
106static uint wapf = 1;
107module_param(wapf, uint, 0644);
108MODULE_PARM_DESC(wapf, "WAPF value");
109
Corentin Chary85091b72007-01-26 14:04:30 +0100110#define ASUS_HANDLE(object, paths...) \
111 static acpi_handle object##_handle = NULL; \
112 static char *object##_paths[] = { paths }
113
Corentin Charybe18cda2007-01-26 14:04:35 +0100114/* LED */
115ASUS_HANDLE(mled_set, ASUS_HOTK_PREFIX "MLED");
116ASUS_HANDLE(tled_set, ASUS_HOTK_PREFIX "TLED");
Len Brown8def05f2007-01-30 01:46:43 -0500117ASUS_HANDLE(rled_set, ASUS_HOTK_PREFIX "RLED"); /* W1JC */
118ASUS_HANDLE(pled_set, ASUS_HOTK_PREFIX "PLED"); /* A7J */
Corentin Charyfdd8d082007-03-11 10:26:48 +0100119ASUS_HANDLE(gled_set, ASUS_HOTK_PREFIX "GLED"); /* G1, G2 (probably) */
Corentin Charybe18cda2007-01-26 14:04:35 +0100120
Corentin Chary722ad972007-01-26 14:04:55 +0100121/* LEDD */
122ASUS_HANDLE(ledd_set, ASUS_HOTK_PREFIX "SLCM");
123
Corentin Chary4564de12007-01-26 14:04:40 +0100124/* Bluetooth and WLAN
125 * WLED and BLED are not handled like other XLED, because in some dsdt
126 * they also control the WLAN/Bluetooth device.
127 */
128ASUS_HANDLE(wl_switch, ASUS_HOTK_PREFIX "WLED");
129ASUS_HANDLE(bt_switch, ASUS_HOTK_PREFIX "BLED");
Len Brown8def05f2007-01-30 01:46:43 -0500130ASUS_HANDLE(wireless_status, ASUS_HOTK_PREFIX "RSTS"); /* All new models */
Corentin Chary4564de12007-01-26 14:04:40 +0100131
Corentin Chary6b7091e2007-01-26 14:04:45 +0100132/* Brightness */
133ASUS_HANDLE(brightness_set, ASUS_HOTK_PREFIX "SPLV");
134ASUS_HANDLE(brightness_get, ASUS_HOTK_PREFIX "GPLV");
135
136/* Backlight */
Len Brown8def05f2007-01-30 01:46:43 -0500137ASUS_HANDLE(lcd_switch, "\\_SB.PCI0.SBRG.EC0._Q10", /* All new models */
138 "\\_SB.PCI0.ISA.EC0._Q10", /* A1x */
139 "\\_SB.PCI0.PX40.ECD0._Q10", /* L3C */
140 "\\_SB.PCI0.PX40.EC0.Q10", /* M1A */
141 "\\_SB.PCI0.LPCB.EC0._Q10", /* P30 */
142 "\\_SB.PCI0.PX40.Q10", /* S1x */
143 "\\Q10"); /* A2x, L2D, L3D, M2E */
Corentin Chary6b7091e2007-01-26 14:04:45 +0100144
Corentin Chary78127b42007-01-26 14:04:49 +0100145/* Display */
146ASUS_HANDLE(display_set, ASUS_HOTK_PREFIX "SDSP");
Len Brown8def05f2007-01-30 01:46:43 -0500147ASUS_HANDLE(display_get, "\\_SB.PCI0.P0P1.VGA.GETD", /* A6B, A6K A6R A7D F3JM L4R M6R A3G
148 M6A M6V VX-1 V6J V6V W3Z */
149 "\\_SB.PCI0.P0P2.VGA.GETD", /* A3E A4K, A4D A4L A6J A7J A8J Z71V M9V
Corentin Charyf3985322007-05-06 14:48:22 +0200150 S5A M5A z33A W1Jc W2V G1 */
Len Brown8def05f2007-01-30 01:46:43 -0500151 "\\_SB.PCI0.P0P3.VGA.GETD", /* A6V A6Q */
152 "\\_SB.PCI0.P0PA.VGA.GETD", /* A6T, A6M */
153 "\\_SB.PCI0.PCI1.VGAC.NMAP", /* L3C */
154 "\\_SB.PCI0.VGA.GETD", /* Z96F */
155 "\\ACTD", /* A2D */
156 "\\ADVG", /* A4G Z71A W1N W5A W5F M2N M3N M5N M6N S1N S5N */
157 "\\DNXT", /* P30 */
158 "\\INFB", /* A2H D1 L2D L3D L3H L2E L5D L5C M1A M2E L4L W3V */
159 "\\SSTE"); /* A3F A6F A3N A3L M6N W3N W6A */
Corentin Chary78127b42007-01-26 14:04:49 +0100160
Len Brown8def05f2007-01-30 01:46:43 -0500161ASUS_HANDLE(ls_switch, ASUS_HOTK_PREFIX "ALSC"); /* Z71A Z71V */
162ASUS_HANDLE(ls_level, ASUS_HOTK_PREFIX "ALSL"); /* Z71A Z71V */
Corentin Chary8b857352007-01-26 14:04:58 +0100163
Corentin Charye539c2f2007-05-06 14:47:06 +0200164/* GPS */
165/* R2H use different handle for GPS on/off */
Corentin Charyf3985322007-05-06 14:48:22 +0200166ASUS_HANDLE(gps_on, ASUS_HOTK_PREFIX "SDON"); /* R2H */
167ASUS_HANDLE(gps_off, ASUS_HOTK_PREFIX "SDOF"); /* R2H */
Corentin Charye539c2f2007-05-06 14:47:06 +0200168ASUS_HANDLE(gps_status, ASUS_HOTK_PREFIX "GPST");
169
Corentin Chary85091b72007-01-26 14:04:30 +0100170/*
171 * This is the main structure, we can use it to store anything interesting
172 * about the hotk device
173 */
174struct asus_hotk {
Len Brown8def05f2007-01-30 01:46:43 -0500175 char *name; //laptop name
Corentin Chary85091b72007-01-26 14:04:30 +0100176 struct acpi_device *device; //the device we are in
177 acpi_handle handle; //the handle of the hotk device
178 char status; //status of the hotk, for LEDs, ...
Corentin Chary722ad972007-01-26 14:04:55 +0100179 u32 ledd_status; //status of the LED display
Len Brown8def05f2007-01-30 01:46:43 -0500180 u8 light_level; //light sensor level
181 u8 light_switch; //light sensor switch value
Corentin Chary85091b72007-01-26 14:04:30 +0100182 u16 event_count[128]; //count for each event TODO make this better
183};
184
185/*
186 * This header is made available to allow proper configuration given model,
187 * revision number , ... this info cannot go in struct asus_hotk because it is
188 * available before the hotk
189 */
190static struct acpi_table_header *asus_info;
191
192/* The actual device the driver binds to */
193static struct asus_hotk *hotk;
194
195/*
196 * The hotkey driver declaration
197 */
Thomas Renninger1ba90e32007-07-23 14:44:41 +0200198static const struct acpi_device_id asus_device_ids[] = {
199 {"ATK0100", 0},
200 {"", 0},
201};
202MODULE_DEVICE_TABLE(acpi, asus_device_ids);
203
Corentin Chary85091b72007-01-26 14:04:30 +0100204static int asus_hotk_add(struct acpi_device *device);
205static int asus_hotk_remove(struct acpi_device *device, int type);
206static struct acpi_driver asus_hotk_driver = {
207 .name = ASUS_HOTK_NAME,
208 .class = ASUS_HOTK_CLASS,
Thomas Renninger1ba90e32007-07-23 14:44:41 +0200209 .ids = asus_device_ids,
Corentin Chary85091b72007-01-26 14:04:30 +0100210 .ops = {
211 .add = asus_hotk_add,
212 .remove = asus_hotk_remove,
213 },
214};
215
Corentin Chary6b7091e2007-01-26 14:04:45 +0100216/* The backlight device /sys/class/backlight */
217static struct backlight_device *asus_backlight_device;
218
219/*
220 * The backlight class declaration
221 */
222static int read_brightness(struct backlight_device *bd);
223static int update_bl_status(struct backlight_device *bd);
Richard Purdie599a52d2007-02-10 23:07:48 +0000224static struct backlight_ops asusbl_ops = {
Len Brown8def05f2007-01-30 01:46:43 -0500225 .get_brightness = read_brightness,
226 .update_status = update_bl_status,
Corentin Chary6b7091e2007-01-26 14:04:45 +0100227};
228
Corentin Charybe18cda2007-01-26 14:04:35 +0100229/* These functions actually update the LED's, and are called from a
230 * workqueue. By doing this as separate work rather than when the LED
231 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
232 * potentially bad time, such as a timer interrupt. */
233static struct workqueue_struct *led_workqueue;
234
235#define ASUS_LED(object, ledname) \
236 static void object##_led_set(struct led_classdev *led_cdev, \
237 enum led_brightness value); \
238 static void object##_led_update(struct work_struct *ignored); \
239 static int object##_led_wk; \
Adrian Bunkf110ef52007-02-20 01:07:25 +0100240 static DECLARE_WORK(object##_led_work, object##_led_update); \
Corentin Charybe18cda2007-01-26 14:04:35 +0100241 static struct led_classdev object##_led = { \
Richard Purdie6c152be2007-10-31 15:00:07 +0100242 .name = "asus::" ledname, \
Corentin Charybe18cda2007-01-26 14:04:35 +0100243 .brightness_set = object##_led_set, \
244 }
245
246ASUS_LED(mled, "mail");
247ASUS_LED(tled, "touchpad");
248ASUS_LED(rled, "record");
249ASUS_LED(pled, "phone");
Corentin Charyfdd8d082007-03-11 10:26:48 +0100250ASUS_LED(gled, "gaming");
Corentin Charybe18cda2007-01-26 14:04:35 +0100251
Corentin Chary85091b72007-01-26 14:04:30 +0100252/*
253 * This function evaluates an ACPI method, given an int as parameter, the
254 * method is searched within the scope of the handle, can be NULL. The output
255 * of the method is written is output, which can also be NULL
256 *
Corentin CHARYf8d1c942008-01-16 16:56:42 +0100257 * returns 0 if write is successful, -1 else.
Corentin Chary85091b72007-01-26 14:04:30 +0100258 */
259static int write_acpi_int(acpi_handle handle, const char *method, int val,
260 struct acpi_buffer *output)
261{
262 struct acpi_object_list params; //list of input parameters (an int here)
263 union acpi_object in_obj; //the only param we use
264 acpi_status status;
265
Corentin CHARYf8d1c942008-01-16 16:56:42 +0100266 if (!handle)
267 return 0;
268
Corentin Chary85091b72007-01-26 14:04:30 +0100269 params.count = 1;
270 params.pointer = &in_obj;
271 in_obj.type = ACPI_TYPE_INTEGER;
272 in_obj.integer.value = val;
273
274 status = acpi_evaluate_object(handle, (char *)method, &params, output);
Corentin CHARYf8d1c942008-01-16 16:56:42 +0100275 if (status == AE_OK)
276 return 0;
277 else
278 return -1;
Corentin Chary85091b72007-01-26 14:04:30 +0100279}
280
Len Brown8def05f2007-01-30 01:46:43 -0500281static int read_wireless_status(int mask)
282{
Corentin Chary9a816852007-03-11 10:25:38 +0100283 ulong status;
284 acpi_status rv = AE_OK;
Corentin Chary4564de12007-01-26 14:04:40 +0100285
286 if (!wireless_status_handle)
287 return (hotk->status & mask) ? 1 : 0;
288
Corentin Chary9a816852007-03-11 10:25:38 +0100289 rv = acpi_evaluate_integer(wireless_status_handle, NULL, NULL, &status);
290 if (ACPI_FAILURE(rv))
Corentin Chary4564de12007-01-26 14:04:40 +0100291 printk(ASUS_WARNING "Error reading Wireless status\n");
Corentin Chary9a816852007-03-11 10:25:38 +0100292 else
293 return (status & mask) ? 1 : 0;
Corentin Chary4564de12007-01-26 14:04:40 +0100294
295 return (hotk->status & mask) ? 1 : 0;
296}
297
Corentin Charyf3985322007-05-06 14:48:22 +0200298static int read_gps_status(void)
299{
300 ulong status;
Corentin Charye539c2f2007-05-06 14:47:06 +0200301 acpi_status rv = AE_OK;
302
303 rv = acpi_evaluate_integer(gps_status_handle, NULL, NULL, &status);
304 if (ACPI_FAILURE(rv))
Corentin Charyf3985322007-05-06 14:48:22 +0200305 printk(ASUS_WARNING "Error reading GPS status\n");
Corentin Charye539c2f2007-05-06 14:47:06 +0200306 else
Corentin Charyf3985322007-05-06 14:48:22 +0200307 return status ? 1 : 0;
Corentin Charye539c2f2007-05-06 14:47:06 +0200308
Corentin Charyf3985322007-05-06 14:48:22 +0200309 return (hotk->status & GPS_ON) ? 1 : 0;
Corentin Charye539c2f2007-05-06 14:47:06 +0200310}
311
Corentin Charybe18cda2007-01-26 14:04:35 +0100312/* Generic LED functions */
313static int read_status(int mask)
314{
Corentin Chary4564de12007-01-26 14:04:40 +0100315 /* There is a special method for both wireless devices */
316 if (mask == BT_ON || mask == WL_ON)
317 return read_wireless_status(mask);
Corentin Charyf3985322007-05-06 14:48:22 +0200318 else if (mask == GPS_ON)
319 return read_gps_status();
Corentin Chary4564de12007-01-26 14:04:40 +0100320
Corentin Charybe18cda2007-01-26 14:04:35 +0100321 return (hotk->status & mask) ? 1 : 0;
322}
323
Corentin Chary935ffee2007-03-11 10:26:12 +0100324static void write_status(acpi_handle handle, int out, int mask)
Corentin Charybe18cda2007-01-26 14:04:35 +0100325{
326 hotk->status = (out) ? (hotk->status | mask) : (hotk->status & ~mask);
327
Corentin Chary935ffee2007-03-11 10:26:12 +0100328 switch (mask) {
329 case MLED_ON:
Roel Kluine1af14e2008-02-02 21:07:38 +0100330 out = !(out & 0x1);
Corentin Chary935ffee2007-03-11 10:26:12 +0100331 break;
Corentin Charyfdd8d082007-03-11 10:26:48 +0100332 case GLED_ON:
333 out = (out & 0x1) + 1;
334 break;
Corentin Charye539c2f2007-05-06 14:47:06 +0200335 case GPS_ON:
336 handle = (out) ? gps_on_handle : gps_off_handle;
337 out = 0x02;
338 break;
Corentin Chary935ffee2007-03-11 10:26:12 +0100339 default:
340 out &= 0x1;
341 break;
342 }
Corentin Charybe18cda2007-01-26 14:04:35 +0100343
Corentin CHARYf8d1c942008-01-16 16:56:42 +0100344 if (write_acpi_int(handle, NULL, out, NULL))
Corentin Chary935ffee2007-03-11 10:26:12 +0100345 printk(ASUS_WARNING " write failed %x\n", mask);
Corentin Charybe18cda2007-01-26 14:04:35 +0100346}
347
348/* /sys/class/led handlers */
Corentin Chary935ffee2007-03-11 10:26:12 +0100349#define ASUS_LED_HANDLER(object, mask) \
Corentin Charybe18cda2007-01-26 14:04:35 +0100350 static void object##_led_set(struct led_classdev *led_cdev, \
351 enum led_brightness value) \
352 { \
353 object##_led_wk = value; \
354 queue_work(led_workqueue, &object##_led_work); \
355 } \
356 static void object##_led_update(struct work_struct *ignored) \
357 { \
358 int value = object##_led_wk; \
Corentin Chary935ffee2007-03-11 10:26:12 +0100359 write_status(object##_set_handle, value, (mask)); \
Corentin Charybe18cda2007-01-26 14:04:35 +0100360 }
361
Corentin Chary935ffee2007-03-11 10:26:12 +0100362ASUS_LED_HANDLER(mled, MLED_ON);
363ASUS_LED_HANDLER(pled, PLED_ON);
364ASUS_LED_HANDLER(rled, RLED_ON);
365ASUS_LED_HANDLER(tled, TLED_ON);
Corentin Charyfdd8d082007-03-11 10:26:48 +0100366ASUS_LED_HANDLER(gled, GLED_ON);
Corentin Charybe18cda2007-01-26 14:04:35 +0100367
Corentin Chary6b7091e2007-01-26 14:04:45 +0100368static int get_lcd_state(void)
369{
370 return read_status(LCD_ON);
371}
372
373static int set_lcd_state(int value)
374{
375 int lcd = 0;
376 acpi_status status = 0;
377
378 lcd = value ? 1 : 0;
379
380 if (lcd == get_lcd_state())
381 return 0;
382
Len Brown8def05f2007-01-30 01:46:43 -0500383 if (lcd_switch_handle) {
Corentin Chary6b7091e2007-01-26 14:04:45 +0100384 status = acpi_evaluate_object(lcd_switch_handle,
385 NULL, NULL, NULL);
386
387 if (ACPI_FAILURE(status))
388 printk(ASUS_WARNING "Error switching LCD\n");
389 }
390
Corentin Chary935ffee2007-03-11 10:26:12 +0100391 write_status(NULL, lcd, LCD_ON);
Corentin Chary6b7091e2007-01-26 14:04:45 +0100392 return 0;
393}
394
395static void lcd_blank(int blank)
396{
397 struct backlight_device *bd = asus_backlight_device;
398
Len Brown8def05f2007-01-30 01:46:43 -0500399 if (bd) {
Richard Purdie599a52d2007-02-10 23:07:48 +0000400 bd->props.power = blank;
Richard Purdie28ee0862007-02-08 22:25:09 +0000401 backlight_update_status(bd);
Corentin Chary6b7091e2007-01-26 14:04:45 +0100402 }
403}
404
405static int read_brightness(struct backlight_device *bd)
406{
Corentin Chary9a816852007-03-11 10:25:38 +0100407 ulong value;
408 acpi_status rv = AE_OK;
Corentin Chary6b7091e2007-01-26 14:04:45 +0100409
Corentin Chary9a816852007-03-11 10:25:38 +0100410 rv = acpi_evaluate_integer(brightness_get_handle, NULL, NULL, &value);
411 if (ACPI_FAILURE(rv))
Corentin Chary6b7091e2007-01-26 14:04:45 +0100412 printk(ASUS_WARNING "Error reading brightness\n");
413
414 return value;
415}
416
417static int set_brightness(struct backlight_device *bd, int value)
418{
419 int ret = 0;
420
421 value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
422 /* 0 <= value <= 15 */
423
Corentin CHARYf8d1c942008-01-16 16:56:42 +0100424 if (write_acpi_int(brightness_set_handle, NULL, value, NULL)) {
Corentin Chary6b7091e2007-01-26 14:04:45 +0100425 printk(ASUS_WARNING "Error changing brightness\n");
426 ret = -EIO;
427 }
428
429 return ret;
430}
431
432static int update_bl_status(struct backlight_device *bd)
433{
434 int rv;
Richard Purdie599a52d2007-02-10 23:07:48 +0000435 int value = bd->props.brightness;
Corentin Chary6b7091e2007-01-26 14:04:45 +0100436
437 rv = set_brightness(bd, value);
Len Brown8def05f2007-01-30 01:46:43 -0500438 if (rv)
Corentin Chary6b7091e2007-01-26 14:04:45 +0100439 return rv;
440
Richard Purdie599a52d2007-02-10 23:07:48 +0000441 value = (bd->props.power == FB_BLANK_UNBLANK) ? 1 : 0;
Corentin Chary6b7091e2007-01-26 14:04:45 +0100442 return set_lcd_state(value);
443}
444
Corentin Chary85091b72007-01-26 14:04:30 +0100445/*
446 * Platform device handlers
447 */
448
449/*
450 * We write our info in page, we begin at offset off and cannot write more
451 * than count bytes. We set eof to 1 if we handle those 2 values. We return the
452 * number of bytes written in page
453 */
454static ssize_t show_infos(struct device *dev,
Len Brown8def05f2007-01-30 01:46:43 -0500455 struct device_attribute *attr, char *page)
Corentin Chary85091b72007-01-26 14:04:30 +0100456{
457 int len = 0;
Corentin Chary9a816852007-03-11 10:25:38 +0100458 ulong temp;
Corentin Chary85091b72007-01-26 14:04:30 +0100459 char buf[16]; //enough for all info
Corentin Chary9a816852007-03-11 10:25:38 +0100460 acpi_status rv = AE_OK;
461
Corentin Chary85091b72007-01-26 14:04:30 +0100462 /*
463 * We use the easy way, we don't care of off and count, so we don't set eof
464 * to 1
465 */
466
467 len += sprintf(page, ASUS_HOTK_NAME " " ASUS_LAPTOP_VERSION "\n");
468 len += sprintf(page + len, "Model reference : %s\n", hotk->name);
469 /*
470 * The SFUN method probably allows the original driver to get the list
471 * of features supported by a given model. For now, 0x0100 or 0x0800
472 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
473 * The significance of others is yet to be found.
474 */
Corentin Chary9a816852007-03-11 10:25:38 +0100475 rv = acpi_evaluate_integer(hotk->handle, "SFUN", NULL, &temp);
476 if (!ACPI_FAILURE(rv))
477 len += sprintf(page + len, "SFUN value : 0x%04x\n",
478 (uint) temp);
Corentin Chary85091b72007-01-26 14:04:30 +0100479 /*
480 * Another value for userspace: the ASYM method returns 0x02 for
481 * battery low and 0x04 for battery critical, its readings tend to be
482 * more accurate than those provided by _BST.
483 * Note: since not all the laptops provide this method, errors are
484 * silently ignored.
485 */
Corentin Chary9a816852007-03-11 10:25:38 +0100486 rv = acpi_evaluate_integer(hotk->handle, "ASYM", NULL, &temp);
487 if (!ACPI_FAILURE(rv))
488 len += sprintf(page + len, "ASYM value : 0x%04x\n",
489 (uint) temp);
Corentin Chary85091b72007-01-26 14:04:30 +0100490 if (asus_info) {
491 snprintf(buf, 16, "%d", asus_info->length);
492 len += sprintf(page + len, "DSDT length : %s\n", buf);
493 snprintf(buf, 16, "%d", asus_info->checksum);
494 len += sprintf(page + len, "DSDT checksum : %s\n", buf);
495 snprintf(buf, 16, "%d", asus_info->revision);
496 len += sprintf(page + len, "DSDT revision : %s\n", buf);
497 snprintf(buf, 7, "%s", asus_info->oem_id);
498 len += sprintf(page + len, "OEM id : %s\n", buf);
499 snprintf(buf, 9, "%s", asus_info->oem_table_id);
500 len += sprintf(page + len, "OEM table id : %s\n", buf);
501 snprintf(buf, 16, "%x", asus_info->oem_revision);
502 len += sprintf(page + len, "OEM revision : 0x%s\n", buf);
503 snprintf(buf, 5, "%s", asus_info->asl_compiler_id);
504 len += sprintf(page + len, "ASL comp vendor id : %s\n", buf);
505 snprintf(buf, 16, "%x", asus_info->asl_compiler_revision);
506 len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf);
507 }
508
509 return len;
510}
511
512static int parse_arg(const char *buf, unsigned long count, int *val)
513{
514 if (!count)
515 return 0;
516 if (count > 31)
517 return -EINVAL;
518 if (sscanf(buf, "%i", val) != 1)
519 return -EINVAL;
520 return count;
521}
522
Corentin Chary4564de12007-01-26 14:04:40 +0100523static ssize_t store_status(const char *buf, size_t count,
Corentin Chary935ffee2007-03-11 10:26:12 +0100524 acpi_handle handle, int mask)
Corentin Chary4564de12007-01-26 14:04:40 +0100525{
526 int rv, value;
527 int out = 0;
528
529 rv = parse_arg(buf, count, &value);
530 if (rv > 0)
531 out = value ? 1 : 0;
532
Corentin Chary935ffee2007-03-11 10:26:12 +0100533 write_status(handle, out, mask);
Corentin Chary4564de12007-01-26 14:04:40 +0100534
535 return rv;
536}
537
538/*
Corentin Chary722ad972007-01-26 14:04:55 +0100539 * LEDD display
540 */
541static ssize_t show_ledd(struct device *dev,
542 struct device_attribute *attr, char *buf)
543{
544 return sprintf(buf, "0x%08x\n", hotk->ledd_status);
545}
546
547static ssize_t store_ledd(struct device *dev, struct device_attribute *attr,
548 const char *buf, size_t count)
549{
550 int rv, value;
551
552 rv = parse_arg(buf, count, &value);
553 if (rv > 0) {
Corentin CHARYf8d1c942008-01-16 16:56:42 +0100554 if (write_acpi_int(ledd_set_handle, NULL, value, NULL))
Corentin Chary722ad972007-01-26 14:04:55 +0100555 printk(ASUS_WARNING "LED display write failed\n");
556 else
557 hotk->ledd_status = (u32) value;
558 }
559 return rv;
560}
561
562/*
Corentin Chary4564de12007-01-26 14:04:40 +0100563 * WLAN
564 */
565static ssize_t show_wlan(struct device *dev,
566 struct device_attribute *attr, char *buf)
567{
568 return sprintf(buf, "%d\n", read_status(WL_ON));
569}
570
571static ssize_t store_wlan(struct device *dev, struct device_attribute *attr,
572 const char *buf, size_t count)
573{
Corentin Chary935ffee2007-03-11 10:26:12 +0100574 return store_status(buf, count, wl_switch_handle, WL_ON);
Corentin Chary4564de12007-01-26 14:04:40 +0100575}
576
577/*
578 * Bluetooth
579 */
580static ssize_t show_bluetooth(struct device *dev,
581 struct device_attribute *attr, char *buf)
582{
583 return sprintf(buf, "%d\n", read_status(BT_ON));
584}
585
Len Brown8def05f2007-01-30 01:46:43 -0500586static ssize_t store_bluetooth(struct device *dev,
587 struct device_attribute *attr, const char *buf,
588 size_t count)
Corentin Chary4564de12007-01-26 14:04:40 +0100589{
Corentin Chary935ffee2007-03-11 10:26:12 +0100590 return store_status(buf, count, bt_switch_handle, BT_ON);
Corentin Chary4564de12007-01-26 14:04:40 +0100591}
592
Corentin Chary78127b42007-01-26 14:04:49 +0100593/*
594 * Display
595 */
596static void set_display(int value)
597{
598 /* no sanity check needed for now */
Corentin CHARYf8d1c942008-01-16 16:56:42 +0100599 if (write_acpi_int(display_set_handle, NULL, value, NULL))
Corentin Chary78127b42007-01-26 14:04:49 +0100600 printk(ASUS_WARNING "Error setting display\n");
601 return;
602}
603
604static int read_display(void)
605{
Corentin Chary9a816852007-03-11 10:25:38 +0100606 ulong value = 0;
607 acpi_status rv = AE_OK;
Corentin Chary78127b42007-01-26 14:04:49 +0100608
609 /* In most of the case, we know how to set the display, but sometime
610 we can't read it */
Len Brown8def05f2007-01-30 01:46:43 -0500611 if (display_get_handle) {
Corentin Chary9a816852007-03-11 10:25:38 +0100612 rv = acpi_evaluate_integer(display_get_handle, NULL,
613 NULL, &value);
614 if (ACPI_FAILURE(rv))
Corentin Chary78127b42007-01-26 14:04:49 +0100615 printk(ASUS_WARNING "Error reading display status\n");
616 }
617
618 value &= 0x0F; /* needed for some models, shouldn't hurt others */
619
620 return value;
621}
Len Brown8def05f2007-01-30 01:46:43 -0500622
Corentin Chary78127b42007-01-26 14:04:49 +0100623/*
624 * Now, *this* one could be more user-friendly, but so far, no-one has
625 * complained. The significance of bits is the same as in store_disp()
626 */
627static ssize_t show_disp(struct device *dev,
628 struct device_attribute *attr, char *buf)
629{
630 return sprintf(buf, "%d\n", read_display());
631}
632
633/*
634 * Experimental support for display switching. As of now: 1 should activate
635 * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI.
636 * Any combination (bitwise) of these will suffice. I never actually tested 4
637 * displays hooked up simultaneously, so be warned. See the acpi4asus README
638 * for more info.
639 */
640static ssize_t store_disp(struct device *dev, struct device_attribute *attr,
641 const char *buf, size_t count)
642{
643 int rv, value;
644
645 rv = parse_arg(buf, count, &value);
646 if (rv > 0)
647 set_display(value);
648 return rv;
649}
650
Corentin Chary8b857352007-01-26 14:04:58 +0100651/*
652 * Light Sens
653 */
654static void set_light_sens_switch(int value)
655{
Corentin CHARYf8d1c942008-01-16 16:56:42 +0100656 if (write_acpi_int(ls_switch_handle, NULL, value, NULL))
Corentin Chary8b857352007-01-26 14:04:58 +0100657 printk(ASUS_WARNING "Error setting light sensor switch\n");
658 hotk->light_switch = value;
659}
660
661static ssize_t show_lssw(struct device *dev,
662 struct device_attribute *attr, char *buf)
663{
664 return sprintf(buf, "%d\n", hotk->light_switch);
665}
666
667static ssize_t store_lssw(struct device *dev, struct device_attribute *attr,
668 const char *buf, size_t count)
669{
670 int rv, value;
671
672 rv = parse_arg(buf, count, &value);
673 if (rv > 0)
674 set_light_sens_switch(value ? 1 : 0);
675
676 return rv;
677}
678
679static void set_light_sens_level(int value)
680{
Corentin CHARYf8d1c942008-01-16 16:56:42 +0100681 if (write_acpi_int(ls_level_handle, NULL, value, NULL))
Corentin Chary8b857352007-01-26 14:04:58 +0100682 printk(ASUS_WARNING "Error setting light sensor level\n");
683 hotk->light_level = value;
684}
685
686static ssize_t show_lslvl(struct device *dev,
687 struct device_attribute *attr, char *buf)
688{
689 return sprintf(buf, "%d\n", hotk->light_level);
690}
691
692static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr,
693 const char *buf, size_t count)
694{
695 int rv, value;
696
697 rv = parse_arg(buf, count, &value);
698 if (rv > 0) {
699 value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
700 /* 0 <= value <= 15 */
701 set_light_sens_level(value);
702 }
703
704 return rv;
705}
706
Corentin Charye539c2f2007-05-06 14:47:06 +0200707/*
708 * GPS
709 */
710static ssize_t show_gps(struct device *dev,
711 struct device_attribute *attr, char *buf)
712{
713 return sprintf(buf, "%d\n", read_status(GPS_ON));
714}
715
716static ssize_t store_gps(struct device *dev, struct device_attribute *attr,
717 const char *buf, size_t count)
718{
Corentin Charyf3985322007-05-06 14:48:22 +0200719 return store_status(buf, count, NULL, GPS_ON);
Corentin Charye539c2f2007-05-06 14:47:06 +0200720}
721
Corentin Chary85091b72007-01-26 14:04:30 +0100722static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
723{
724 /* TODO Find a better way to handle events count. */
725 if (!hotk)
726 return;
727
Corentin Chary6b7091e2007-01-26 14:04:45 +0100728 /*
729 * We need to tell the backlight device when the backlight power is
730 * switched
731 */
732 if (event == ATKD_LCD_ON) {
Corentin Chary935ffee2007-03-11 10:26:12 +0100733 write_status(NULL, 1, LCD_ON);
Corentin Chary6b7091e2007-01-26 14:04:45 +0100734 lcd_blank(FB_BLANK_UNBLANK);
Len Brown8def05f2007-01-30 01:46:43 -0500735 } else if (event == ATKD_LCD_OFF) {
Corentin Chary935ffee2007-03-11 10:26:12 +0100736 write_status(NULL, 0, LCD_ON);
Corentin Chary6b7091e2007-01-26 14:04:45 +0100737 lcd_blank(FB_BLANK_POWERDOWN);
738 }
739
Len Brown14e04fb2007-08-23 15:20:26 -0400740 acpi_bus_generate_proc_event(hotk->device, event,
Corentin Chary85091b72007-01-26 14:04:30 +0100741 hotk->event_count[event % 128]++);
742
743 return;
744}
745
746#define ASUS_CREATE_DEVICE_ATTR(_name) \
747 struct device_attribute dev_attr_##_name = { \
748 .attr = { \
749 .name = __stringify(_name), \
Tejun Heo7b595752007-06-14 03:45:17 +0900750 .mode = 0 }, \
Corentin Chary85091b72007-01-26 14:04:30 +0100751 .show = NULL, \
752 .store = NULL, \
753 }
754
755#define ASUS_SET_DEVICE_ATTR(_name, _mode, _show, _store) \
756 do { \
757 dev_attr_##_name.attr.mode = _mode; \
758 dev_attr_##_name.show = _show; \
759 dev_attr_##_name.store = _store; \
760 } while(0)
761
762static ASUS_CREATE_DEVICE_ATTR(infos);
Corentin Chary4564de12007-01-26 14:04:40 +0100763static ASUS_CREATE_DEVICE_ATTR(wlan);
764static ASUS_CREATE_DEVICE_ATTR(bluetooth);
Corentin Chary78127b42007-01-26 14:04:49 +0100765static ASUS_CREATE_DEVICE_ATTR(display);
Corentin Chary722ad972007-01-26 14:04:55 +0100766static ASUS_CREATE_DEVICE_ATTR(ledd);
Corentin Chary8b857352007-01-26 14:04:58 +0100767static ASUS_CREATE_DEVICE_ATTR(ls_switch);
768static ASUS_CREATE_DEVICE_ATTR(ls_level);
Corentin Charye539c2f2007-05-06 14:47:06 +0200769static ASUS_CREATE_DEVICE_ATTR(gps);
Corentin Chary85091b72007-01-26 14:04:30 +0100770
771static struct attribute *asuspf_attributes[] = {
Len Brown8def05f2007-01-30 01:46:43 -0500772 &dev_attr_infos.attr,
773 &dev_attr_wlan.attr,
774 &dev_attr_bluetooth.attr,
775 &dev_attr_display.attr,
776 &dev_attr_ledd.attr,
777 &dev_attr_ls_switch.attr,
778 &dev_attr_ls_level.attr,
Corentin Charye539c2f2007-05-06 14:47:06 +0200779 &dev_attr_gps.attr,
Len Brown8def05f2007-01-30 01:46:43 -0500780 NULL
Corentin Chary85091b72007-01-26 14:04:30 +0100781};
782
783static struct attribute_group asuspf_attribute_group = {
Len Brown8def05f2007-01-30 01:46:43 -0500784 .attrs = asuspf_attributes
Corentin Chary85091b72007-01-26 14:04:30 +0100785};
786
787static struct platform_driver asuspf_driver = {
Len Brown8def05f2007-01-30 01:46:43 -0500788 .driver = {
789 .name = ASUS_HOTK_FILE,
790 .owner = THIS_MODULE,
791 }
Corentin Chary85091b72007-01-26 14:04:30 +0100792};
793
794static struct platform_device *asuspf_device;
795
Corentin Chary85091b72007-01-26 14:04:30 +0100796static void asus_hotk_add_fs(void)
797{
798 ASUS_SET_DEVICE_ATTR(infos, 0444, show_infos, NULL);
Corentin Chary4564de12007-01-26 14:04:40 +0100799
800 if (wl_switch_handle)
801 ASUS_SET_DEVICE_ATTR(wlan, 0644, show_wlan, store_wlan);
802
803 if (bt_switch_handle)
804 ASUS_SET_DEVICE_ATTR(bluetooth, 0644,
805 show_bluetooth, store_bluetooth);
Corentin Chary78127b42007-01-26 14:04:49 +0100806
807 if (display_set_handle && display_get_handle)
808 ASUS_SET_DEVICE_ATTR(display, 0644, show_disp, store_disp);
Len Brown8def05f2007-01-30 01:46:43 -0500809 else if (display_set_handle)
Corentin Chary78127b42007-01-26 14:04:49 +0100810 ASUS_SET_DEVICE_ATTR(display, 0200, NULL, store_disp);
811
Corentin Chary722ad972007-01-26 14:04:55 +0100812 if (ledd_set_handle)
813 ASUS_SET_DEVICE_ATTR(ledd, 0644, show_ledd, store_ledd);
814
Corentin Chary8b857352007-01-26 14:04:58 +0100815 if (ls_switch_handle && ls_level_handle) {
816 ASUS_SET_DEVICE_ATTR(ls_level, 0644, show_lslvl, store_lslvl);
817 ASUS_SET_DEVICE_ATTR(ls_switch, 0644, show_lssw, store_lssw);
818 }
Corentin Charye539c2f2007-05-06 14:47:06 +0200819
Corentin Charyf3985322007-05-06 14:48:22 +0200820 if (gps_status_handle && gps_on_handle && gps_off_handle)
Corentin Charye539c2f2007-05-06 14:47:06 +0200821 ASUS_SET_DEVICE_ATTR(gps, 0644, show_gps, store_gps);
Corentin Chary85091b72007-01-26 14:04:30 +0100822}
823
Len Brown8def05f2007-01-30 01:46:43 -0500824static int asus_handle_init(char *name, acpi_handle * handle,
Corentin Chary85091b72007-01-26 14:04:30 +0100825 char **paths, int num_paths)
826{
827 int i;
828 acpi_status status;
829
830 for (i = 0; i < num_paths; i++) {
831 status = acpi_get_handle(NULL, paths[i], handle);
832 if (ACPI_SUCCESS(status))
833 return 0;
834 }
835
836 *handle = NULL;
837 return -ENODEV;
838}
839
840#define ASUS_HANDLE_INIT(object) \
841 asus_handle_init(#object, &object##_handle, object##_paths, \
842 ARRAY_SIZE(object##_paths))
843
Corentin Chary85091b72007-01-26 14:04:30 +0100844/*
845 * This function is used to initialize the hotk with right values. In this
846 * method, we can make all the detection we want, and modify the hotk struct
847 */
848static int asus_hotk_get_info(void)
849{
850 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
Corentin Chary85091b72007-01-26 14:04:30 +0100851 union acpi_object *model = NULL;
Corentin Chary9a816852007-03-11 10:25:38 +0100852 ulong bsts_result, hwrs_result;
Corentin Chary85091b72007-01-26 14:04:30 +0100853 char *string = NULL;
854 acpi_status status;
855
856 /*
857 * Get DSDT headers early enough to allow for differentiating between
858 * models, but late enough to allow acpi_bus_register_driver() to fail
859 * before doing anything ACPI-specific. Should we encounter a machine,
860 * which needs special handling (i.e. its hotkey device has a different
861 * HID), this bit will be moved. A global variable asus_info contains
862 * the DSDT header.
863 */
Len Brown894d79b2007-02-03 02:13:53 -0500864 status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus_info);
Corentin Chary85091b72007-01-26 14:04:30 +0100865 if (ACPI_FAILURE(status))
866 printk(ASUS_WARNING "Couldn't get the DSDT table header\n");
Corentin Chary85091b72007-01-26 14:04:30 +0100867
868 /* We have to write 0 on init this far for all ASUS models */
Corentin CHARYf8d1c942008-01-16 16:56:42 +0100869 if (write_acpi_int(hotk->handle, "INIT", 0, &buffer)) {
Corentin Chary85091b72007-01-26 14:04:30 +0100870 printk(ASUS_ERR "Hotkey initialization failed\n");
871 return -ENODEV;
872 }
873
874 /* This needs to be called for some laptops to init properly */
Corentin Chary9a816852007-03-11 10:25:38 +0100875 status =
876 acpi_evaluate_integer(hotk->handle, "BSTS", NULL, &bsts_result);
877 if (ACPI_FAILURE(status))
Corentin Chary85091b72007-01-26 14:04:30 +0100878 printk(ASUS_WARNING "Error calling BSTS\n");
879 else if (bsts_result)
880 printk(ASUS_NOTICE "BSTS called, 0x%02x returned\n",
Corentin Chary9a816852007-03-11 10:25:38 +0100881 (uint) bsts_result);
Corentin Chary85091b72007-01-26 14:04:30 +0100882
Corentin Chary185e5af2007-03-11 10:27:33 +0100883 /* This too ... */
884 write_acpi_int(hotk->handle, "CWAP", wapf, NULL);
885
Corentin Chary85091b72007-01-26 14:04:30 +0100886 /*
887 * Try to match the object returned by INIT to the specific model.
888 * Handle every possible object (or the lack of thereof) the DSDT
889 * writers might throw at us. When in trouble, we pass NULL to
890 * asus_model_match() and try something completely different.
891 */
892 if (buffer.pointer) {
893 model = buffer.pointer;
894 switch (model->type) {
895 case ACPI_TYPE_STRING:
896 string = model->string.pointer;
897 break;
898 case ACPI_TYPE_BUFFER:
899 string = model->buffer.pointer;
900 break;
901 default:
902 string = "";
903 break;
904 }
905 }
906 hotk->name = kstrdup(string, GFP_KERNEL);
907 if (!hotk->name)
908 return -ENOMEM;
909
Len Brown8def05f2007-01-30 01:46:43 -0500910 if (*string)
Corentin Chary85091b72007-01-26 14:04:30 +0100911 printk(ASUS_NOTICE " %s model detected\n", string);
912
Corentin Charybe18cda2007-01-26 14:04:35 +0100913 ASUS_HANDLE_INIT(mled_set);
914 ASUS_HANDLE_INIT(tled_set);
915 ASUS_HANDLE_INIT(rled_set);
916 ASUS_HANDLE_INIT(pled_set);
Corentin Charyfdd8d082007-03-11 10:26:48 +0100917 ASUS_HANDLE_INIT(gled_set);
Corentin Charybe18cda2007-01-26 14:04:35 +0100918
Corentin Chary722ad972007-01-26 14:04:55 +0100919 ASUS_HANDLE_INIT(ledd_set);
920
Corentin Chary4564de12007-01-26 14:04:40 +0100921 /*
922 * The HWRS method return informations about the hardware.
923 * 0x80 bit is for WLAN, 0x100 for Bluetooth.
924 * The significance of others is yet to be found.
925 * If we don't find the method, we assume the device are present.
926 */
Corentin Chary9a816852007-03-11 10:25:38 +0100927 status =
928 acpi_evaluate_integer(hotk->handle, "HRWS", NULL, &hwrs_result);
929 if (ACPI_FAILURE(status))
Corentin Chary4564de12007-01-26 14:04:40 +0100930 hwrs_result = WL_HWRS | BT_HWRS;
931
Len Brown8def05f2007-01-30 01:46:43 -0500932 if (hwrs_result & WL_HWRS)
Corentin Chary4564de12007-01-26 14:04:40 +0100933 ASUS_HANDLE_INIT(wl_switch);
Len Brown8def05f2007-01-30 01:46:43 -0500934 if (hwrs_result & BT_HWRS)
Corentin Chary4564de12007-01-26 14:04:40 +0100935 ASUS_HANDLE_INIT(bt_switch);
936
937 ASUS_HANDLE_INIT(wireless_status);
938
Corentin Chary6b7091e2007-01-26 14:04:45 +0100939 ASUS_HANDLE_INIT(brightness_set);
940 ASUS_HANDLE_INIT(brightness_get);
941
942 ASUS_HANDLE_INIT(lcd_switch);
943
Corentin Chary78127b42007-01-26 14:04:49 +0100944 ASUS_HANDLE_INIT(display_set);
945 ASUS_HANDLE_INIT(display_get);
946
Corentin Chary8b857352007-01-26 14:04:58 +0100947 /* There is a lot of models with "ALSL", but a few get
948 a real light sens, so we need to check it. */
Corentin Chary832d9952007-05-06 14:47:29 +0200949 if (!ASUS_HANDLE_INIT(ls_switch))
Corentin Chary8b857352007-01-26 14:04:58 +0100950 ASUS_HANDLE_INIT(ls_level);
951
Corentin Charye539c2f2007-05-06 14:47:06 +0200952 ASUS_HANDLE_INIT(gps_on);
953 ASUS_HANDLE_INIT(gps_off);
954 ASUS_HANDLE_INIT(gps_status);
955
Corentin Chary85091b72007-01-26 14:04:30 +0100956 kfree(model);
957
958 return AE_OK;
959}
960
961static int asus_hotk_check(void)
962{
963 int result = 0;
964
965 result = acpi_bus_get_status(hotk->device);
966 if (result)
967 return result;
968
969 if (hotk->device->status.present) {
970 result = asus_hotk_get_info();
971 } else {
972 printk(ASUS_ERR "Hotkey device not present, aborting\n");
973 return -EINVAL;
974 }
975
976 return result;
977}
978
979static int asus_hotk_found;
980
981static int asus_hotk_add(struct acpi_device *device)
982{
983 acpi_status status = AE_OK;
984 int result;
985
986 if (!device)
987 return -EINVAL;
988
989 printk(ASUS_NOTICE "Asus Laptop Support version %s\n",
990 ASUS_LAPTOP_VERSION);
991
Yoann Padioleaudd00cc42007-07-19 01:49:03 -0700992 hotk = kzalloc(sizeof(struct asus_hotk), GFP_KERNEL);
Corentin Chary85091b72007-01-26 14:04:30 +0100993 if (!hotk)
994 return -ENOMEM;
Corentin Chary85091b72007-01-26 14:04:30 +0100995
996 hotk->handle = device->handle;
997 strcpy(acpi_device_name(device), ASUS_HOTK_DEVICE_NAME);
998 strcpy(acpi_device_class(device), ASUS_HOTK_CLASS);
999 acpi_driver_data(device) = hotk;
1000 hotk->device = device;
1001
1002 result = asus_hotk_check();
1003 if (result)
1004 goto end;
1005
1006 asus_hotk_add_fs();
1007
1008 /*
1009 * We install the handler, it will receive the hotk in parameter, so, we
1010 * could add other data to the hotk struct
1011 */
Corentin Charya9dbcb32007-05-06 14:46:41 +02001012 status = acpi_install_notify_handler(hotk->handle, ACPI_ALL_NOTIFY,
Corentin Chary85091b72007-01-26 14:04:30 +01001013 asus_hotk_notify, hotk);
1014 if (ACPI_FAILURE(status))
1015 printk(ASUS_ERR "Error installing notify handler\n");
1016
1017 asus_hotk_found = 1;
1018
Corentin Chary6b7091e2007-01-26 14:04:45 +01001019 /* WLED and BLED are on by default */
Corentin Chary935ffee2007-03-11 10:26:12 +01001020 write_status(bt_switch_handle, 1, BT_ON);
1021 write_status(wl_switch_handle, 1, WL_ON);
1022
1023 /* If the h/w switch is off, we need to check the real status */
1024 write_status(NULL, read_status(BT_ON), BT_ON);
1025 write_status(NULL, read_status(WL_ON), WL_ON);
Corentin Chary4564de12007-01-26 14:04:40 +01001026
Corentin Chary6b7091e2007-01-26 14:04:45 +01001027 /* LCD Backlight is on by default */
Corentin Chary935ffee2007-03-11 10:26:12 +01001028 write_status(NULL, 1, LCD_ON);
Corentin Chary6b7091e2007-01-26 14:04:45 +01001029
Corentin Chary722ad972007-01-26 14:04:55 +01001030 /* LED display is off by default */
1031 hotk->ledd_status = 0xFFF;
1032
Len Brown8def05f2007-01-30 01:46:43 -05001033 /* Set initial values of light sensor and level */
1034 hotk->light_switch = 1; /* Default to light sensor disabled */
1035 hotk->light_level = 0; /* level 5 for sensor sensitivity */
Corentin Chary8b857352007-01-26 14:04:58 +01001036
Len Brown8def05f2007-01-30 01:46:43 -05001037 if (ls_switch_handle)
1038 set_light_sens_switch(hotk->light_switch);
Corentin Chary8b857352007-01-26 14:04:58 +01001039
Len Brown8def05f2007-01-30 01:46:43 -05001040 if (ls_level_handle)
1041 set_light_sens_level(hotk->light_level);
Corentin Chary8b857352007-01-26 14:04:58 +01001042
Corentin Charye539c2f2007-05-06 14:47:06 +02001043 /* GPS is on by default */
1044 write_status(NULL, 1, GPS_ON);
1045
Corentin Chary85091b72007-01-26 14:04:30 +01001046 end:
1047 if (result) {
1048 kfree(hotk->name);
1049 kfree(hotk);
1050 }
1051
1052 return result;
1053}
1054
1055static int asus_hotk_remove(struct acpi_device *device, int type)
1056{
1057 acpi_status status = 0;
1058
1059 if (!device || !acpi_driver_data(device))
1060 return -EINVAL;
1061
Corentin Charya9dbcb32007-05-06 14:46:41 +02001062 status = acpi_remove_notify_handler(hotk->handle, ACPI_ALL_NOTIFY,
Corentin Chary85091b72007-01-26 14:04:30 +01001063 asus_hotk_notify);
1064 if (ACPI_FAILURE(status))
1065 printk(ASUS_ERR "Error removing notify handler\n");
1066
1067 kfree(hotk->name);
1068 kfree(hotk);
1069
1070 return 0;
1071}
1072
Corentin Chary6b7091e2007-01-26 14:04:45 +01001073static void asus_backlight_exit(void)
1074{
Len Brown8def05f2007-01-30 01:46:43 -05001075 if (asus_backlight_device)
Corentin Chary6b7091e2007-01-26 14:04:45 +01001076 backlight_device_unregister(asus_backlight_device);
1077}
1078
Corentin Charybe18cda2007-01-26 14:04:35 +01001079#define ASUS_LED_UNREGISTER(object) \
Guillaume Chazaraine1996a62007-08-16 18:18:53 +02001080 if (object##_led.dev) \
1081 led_classdev_unregister(&object##_led)
Corentin Charybe18cda2007-01-26 14:04:35 +01001082
1083static void asus_led_exit(void)
1084{
Al Viro3b0d7112007-07-23 11:21:34 +01001085 destroy_workqueue(led_workqueue);
Corentin Charybe18cda2007-01-26 14:04:35 +01001086 ASUS_LED_UNREGISTER(mled);
1087 ASUS_LED_UNREGISTER(tled);
1088 ASUS_LED_UNREGISTER(pled);
1089 ASUS_LED_UNREGISTER(rled);
Corentin Charyfdd8d082007-03-11 10:26:48 +01001090 ASUS_LED_UNREGISTER(gled);
Corentin Charybe18cda2007-01-26 14:04:35 +01001091}
1092
Corentin Chary85091b72007-01-26 14:04:30 +01001093static void __exit asus_laptop_exit(void)
1094{
Corentin Chary6b7091e2007-01-26 14:04:45 +01001095 asus_backlight_exit();
Corentin Charybe18cda2007-01-26 14:04:35 +01001096 asus_led_exit();
1097
Corentin Chary85091b72007-01-26 14:04:30 +01001098 acpi_bus_unregister_driver(&asus_hotk_driver);
Len Brown8def05f2007-01-30 01:46:43 -05001099 sysfs_remove_group(&asuspf_device->dev.kobj, &asuspf_attribute_group);
1100 platform_device_unregister(asuspf_device);
1101 platform_driver_unregister(&asuspf_driver);
Corentin Chary85091b72007-01-26 14:04:30 +01001102}
1103
Len Brown8def05f2007-01-30 01:46:43 -05001104static int asus_backlight_init(struct device *dev)
Corentin Chary6b7091e2007-01-26 14:04:45 +01001105{
1106 struct backlight_device *bd;
1107
Len Brown8def05f2007-01-30 01:46:43 -05001108 if (brightness_set_handle && lcd_switch_handle) {
1109 bd = backlight_device_register(ASUS_HOTK_FILE, dev,
Richard Purdie599a52d2007-02-10 23:07:48 +00001110 NULL, &asusbl_ops);
Len Brown8def05f2007-01-30 01:46:43 -05001111 if (IS_ERR(bd)) {
Corentin Chary6b7091e2007-01-26 14:04:45 +01001112 printk(ASUS_ERR
1113 "Could not register asus backlight device\n");
1114 asus_backlight_device = NULL;
1115 return PTR_ERR(bd);
1116 }
1117
1118 asus_backlight_device = bd;
1119
Richard Purdie599a52d2007-02-10 23:07:48 +00001120 bd->props.max_brightness = 15;
1121 bd->props.brightness = read_brightness(NULL);
1122 bd->props.power = FB_BLANK_UNBLANK;
Richard Purdie28ee0862007-02-08 22:25:09 +00001123 backlight_update_status(bd);
Corentin Chary6b7091e2007-01-26 14:04:45 +01001124 }
1125 return 0;
1126}
1127
Corentin Charybe18cda2007-01-26 14:04:35 +01001128static int asus_led_register(acpi_handle handle,
Len Brown8def05f2007-01-30 01:46:43 -05001129 struct led_classdev *ldev, struct device *dev)
Corentin Charybe18cda2007-01-26 14:04:35 +01001130{
Len Brown8def05f2007-01-30 01:46:43 -05001131 if (!handle)
Corentin Charybe18cda2007-01-26 14:04:35 +01001132 return 0;
1133
1134 return led_classdev_register(dev, ldev);
1135}
Len Brown8def05f2007-01-30 01:46:43 -05001136
Corentin Charybe18cda2007-01-26 14:04:35 +01001137#define ASUS_LED_REGISTER(object, device) \
1138 asus_led_register(object##_set_handle, &object##_led, device)
1139
Len Brown8def05f2007-01-30 01:46:43 -05001140static int asus_led_init(struct device *dev)
Corentin Charybe18cda2007-01-26 14:04:35 +01001141{
1142 int rv;
1143
1144 rv = ASUS_LED_REGISTER(mled, dev);
Len Brown8def05f2007-01-30 01:46:43 -05001145 if (rv)
Al Viro3b0d7112007-07-23 11:21:34 +01001146 goto out;
Corentin Charybe18cda2007-01-26 14:04:35 +01001147
1148 rv = ASUS_LED_REGISTER(tled, dev);
Len Brown8def05f2007-01-30 01:46:43 -05001149 if (rv)
Al Viro3b0d7112007-07-23 11:21:34 +01001150 goto out1;
Corentin Charybe18cda2007-01-26 14:04:35 +01001151
1152 rv = ASUS_LED_REGISTER(rled, dev);
Len Brown8def05f2007-01-30 01:46:43 -05001153 if (rv)
Al Viro3b0d7112007-07-23 11:21:34 +01001154 goto out2;
Corentin Charybe18cda2007-01-26 14:04:35 +01001155
1156 rv = ASUS_LED_REGISTER(pled, dev);
Len Brown8def05f2007-01-30 01:46:43 -05001157 if (rv)
Al Viro3b0d7112007-07-23 11:21:34 +01001158 goto out3;
Corentin Charybe18cda2007-01-26 14:04:35 +01001159
Corentin Charyfdd8d082007-03-11 10:26:48 +01001160 rv = ASUS_LED_REGISTER(gled, dev);
1161 if (rv)
Al Viro3b0d7112007-07-23 11:21:34 +01001162 goto out4;
Corentin Charyfdd8d082007-03-11 10:26:48 +01001163
Corentin Charybe18cda2007-01-26 14:04:35 +01001164 led_workqueue = create_singlethread_workqueue("led_workqueue");
Len Brown8def05f2007-01-30 01:46:43 -05001165 if (!led_workqueue)
Al Viro3b0d7112007-07-23 11:21:34 +01001166 goto out5;
Corentin Charybe18cda2007-01-26 14:04:35 +01001167
1168 return 0;
Al Viro3b0d7112007-07-23 11:21:34 +01001169out5:
1170 rv = -ENOMEM;
1171 ASUS_LED_UNREGISTER(gled);
1172out4:
1173 ASUS_LED_UNREGISTER(pled);
1174out3:
1175 ASUS_LED_UNREGISTER(rled);
1176out2:
1177 ASUS_LED_UNREGISTER(tled);
1178out1:
1179 ASUS_LED_UNREGISTER(mled);
1180out:
1181 return rv;
Corentin Charybe18cda2007-01-26 14:04:35 +01001182}
1183
Corentin Chary85091b72007-01-26 14:04:30 +01001184static int __init asus_laptop_init(void)
1185{
Corentin Charybe18cda2007-01-26 14:04:35 +01001186 struct device *dev;
Corentin Chary85091b72007-01-26 14:04:30 +01001187 int result;
1188
1189 if (acpi_disabled)
1190 return -ENODEV;
1191
Corentin Chary85091b72007-01-26 14:04:30 +01001192 result = acpi_bus_register_driver(&asus_hotk_driver);
1193 if (result < 0)
1194 return result;
1195
1196 /*
1197 * This is a bit of a kludge. We only want this module loaded
1198 * for ASUS systems, but there's currently no way to probe the
1199 * ACPI namespace for ASUS HIDs. So we just return failure if
1200 * we didn't find one, which will cause the module to be
1201 * unloaded.
1202 */
1203 if (!asus_hotk_found) {
1204 acpi_bus_unregister_driver(&asus_hotk_driver);
1205 return -ENODEV;
1206 }
1207
Corentin Charybe18cda2007-01-26 14:04:35 +01001208 dev = acpi_get_physical_device(hotk->device->handle);
1209
Corentin Chary6b7091e2007-01-26 14:04:45 +01001210 result = asus_backlight_init(dev);
Len Brown8def05f2007-01-30 01:46:43 -05001211 if (result)
Corentin Chary6b7091e2007-01-26 14:04:45 +01001212 goto fail_backlight;
1213
Corentin Charybe18cda2007-01-26 14:04:35 +01001214 result = asus_led_init(dev);
Len Brown8def05f2007-01-30 01:46:43 -05001215 if (result)
Corentin Charybe18cda2007-01-26 14:04:35 +01001216 goto fail_led;
1217
Len Brown8def05f2007-01-30 01:46:43 -05001218 /* Register platform stuff */
Corentin Chary85091b72007-01-26 14:04:30 +01001219 result = platform_driver_register(&asuspf_driver);
Len Brown8def05f2007-01-30 01:46:43 -05001220 if (result)
1221 goto fail_platform_driver;
Corentin Chary85091b72007-01-26 14:04:30 +01001222
Len Brown8def05f2007-01-30 01:46:43 -05001223 asuspf_device = platform_device_alloc(ASUS_HOTK_FILE, -1);
1224 if (!asuspf_device) {
1225 result = -ENOMEM;
1226 goto fail_platform_device1;
1227 }
Corentin Chary85091b72007-01-26 14:04:30 +01001228
Len Brown8def05f2007-01-30 01:46:43 -05001229 result = platform_device_add(asuspf_device);
1230 if (result)
1231 goto fail_platform_device2;
Corentin Chary85091b72007-01-26 14:04:30 +01001232
Len Brown8def05f2007-01-30 01:46:43 -05001233 result = sysfs_create_group(&asuspf_device->dev.kobj,
Corentin Chary85091b72007-01-26 14:04:30 +01001234 &asuspf_attribute_group);
Len Brown8def05f2007-01-30 01:46:43 -05001235 if (result)
1236 goto fail_sysfs;
Corentin Chary85091b72007-01-26 14:04:30 +01001237
Len Brown8def05f2007-01-30 01:46:43 -05001238 return 0;
Corentin Chary85091b72007-01-26 14:04:30 +01001239
Len Brown8def05f2007-01-30 01:46:43 -05001240 fail_sysfs:
1241 platform_device_del(asuspf_device);
Corentin Chary85091b72007-01-26 14:04:30 +01001242
Len Brown8def05f2007-01-30 01:46:43 -05001243 fail_platform_device2:
Corentin Chary85091b72007-01-26 14:04:30 +01001244 platform_device_put(asuspf_device);
1245
Len Brown8def05f2007-01-30 01:46:43 -05001246 fail_platform_device1:
1247 platform_driver_unregister(&asuspf_driver);
Corentin Chary85091b72007-01-26 14:04:30 +01001248
Len Brown8def05f2007-01-30 01:46:43 -05001249 fail_platform_driver:
Corentin Charybe18cda2007-01-26 14:04:35 +01001250 asus_led_exit();
1251
Len Brown8def05f2007-01-30 01:46:43 -05001252 fail_led:
Corentin Chary6b7091e2007-01-26 14:04:45 +01001253 asus_backlight_exit();
1254
Len Brown8def05f2007-01-30 01:46:43 -05001255 fail_backlight:
Corentin Chary85091b72007-01-26 14:04:30 +01001256
1257 return result;
1258}
1259
1260module_init(asus_laptop_init);
1261module_exit(asus_laptop_exit);