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-rw-r--r--drivers/misc/asus-laptop.c1266
1 files changed, 0 insertions, 1266 deletions
diff --git a/drivers/misc/asus-laptop.c b/drivers/misc/asus-laptop.c
deleted file mode 100644
index 8fb8b3591048..000000000000
--- a/drivers/misc/asus-laptop.c
+++ /dev/null
@@ -1,1266 +0,0 @@
-/*
- * asus-laptop.c - Asus Laptop Support
- *
- *
- * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor
- * Copyright (C) 2006-2007 Corentin Chary
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- *
- * The development page for this driver is located at
- * http://sourceforge.net/projects/acpi4asus/
- *
- * Credits:
- * Pontus Fuchs - Helper functions, cleanup
- * Johann Wiesner - Small compile fixes
- * John Belmonte - ACPI code for Toshiba laptop was a good starting point.
- * Eric Burghard - LED display support for W1N
- * Josh Green - Light Sens support
- * Thomas Tuttle - His first patch for led support was very helpfull
- * Sam Lin - GPS support
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/err.h>
-#include <linux/proc_fs.h>
-#include <linux/backlight.h>
-#include <linux/fb.h>
-#include <linux/leds.h>
-#include <linux/platform_device.h>
-#include <acpi/acpi_drivers.h>
-#include <acpi/acpi_bus.h>
-#include <asm/uaccess.h>
-
-#define ASUS_LAPTOP_VERSION "0.42"
-
-#define ASUS_HOTK_NAME "Asus Laptop Support"
-#define ASUS_HOTK_CLASS "hotkey"
-#define ASUS_HOTK_DEVICE_NAME "Hotkey"
-#define ASUS_HOTK_FILE "asus-laptop"
-#define ASUS_HOTK_PREFIX "\\_SB.ATKD."
-
-/*
- * Some events we use, same for all Asus
- */
-#define ATKD_BR_UP 0x10
-#define ATKD_BR_DOWN 0x20
-#define ATKD_LCD_ON 0x33
-#define ATKD_LCD_OFF 0x34
-
-/*
- * Known bits returned by \_SB.ATKD.HWRS
- */
-#define WL_HWRS 0x80
-#define BT_HWRS 0x100
-
-/*
- * Flags for hotk status
- * WL_ON and BT_ON are also used for wireless_status()
- */
-#define WL_ON 0x01 //internal Wifi
-#define BT_ON 0x02 //internal Bluetooth
-#define MLED_ON 0x04 //mail LED
-#define TLED_ON 0x08 //touchpad LED
-#define RLED_ON 0x10 //Record LED
-#define PLED_ON 0x20 //Phone LED
-#define GLED_ON 0x40 //Gaming LED
-#define LCD_ON 0x80 //LCD backlight
-#define GPS_ON 0x100 //GPS
-
-#define ASUS_LOG ASUS_HOTK_FILE ": "
-#define ASUS_ERR KERN_ERR ASUS_LOG
-#define ASUS_WARNING KERN_WARNING ASUS_LOG
-#define ASUS_NOTICE KERN_NOTICE ASUS_LOG
-#define ASUS_INFO KERN_INFO ASUS_LOG
-#define ASUS_DEBUG KERN_DEBUG ASUS_LOG
-
-MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary");
-MODULE_DESCRIPTION(ASUS_HOTK_NAME);
-MODULE_LICENSE("GPL");
-
-/* WAPF defines the behavior of the Fn+Fx wlan key
- * The significance of values is yet to be found, but
- * most of the time:
- * 0x0 will do nothing
- * 0x1 will allow to control the device with Fn+Fx key.
- * 0x4 will send an ACPI event (0x88) while pressing the Fn+Fx key
- * 0x5 like 0x1 or 0x4
- * So, if something doesn't work as you want, just try other values =)
- */
-static uint wapf = 1;
-module_param(wapf, uint, 0644);
-MODULE_PARM_DESC(wapf, "WAPF value");
-
-#define ASUS_HANDLE(object, paths...) \
- static acpi_handle object##_handle = NULL; \
- static char *object##_paths[] = { paths }
-
-/* LED */
-ASUS_HANDLE(mled_set, ASUS_HOTK_PREFIX "MLED");
-ASUS_HANDLE(tled_set, ASUS_HOTK_PREFIX "TLED");
-ASUS_HANDLE(rled_set, ASUS_HOTK_PREFIX "RLED"); /* W1JC */
-ASUS_HANDLE(pled_set, ASUS_HOTK_PREFIX "PLED"); /* A7J */
-ASUS_HANDLE(gled_set, ASUS_HOTK_PREFIX "GLED"); /* G1, G2 (probably) */
-
-/* LEDD */
-ASUS_HANDLE(ledd_set, ASUS_HOTK_PREFIX "SLCM");
-
-/* Bluetooth and WLAN
- * WLED and BLED are not handled like other XLED, because in some dsdt
- * they also control the WLAN/Bluetooth device.
- */
-ASUS_HANDLE(wl_switch, ASUS_HOTK_PREFIX "WLED");
-ASUS_HANDLE(bt_switch, ASUS_HOTK_PREFIX "BLED");
-ASUS_HANDLE(wireless_status, ASUS_HOTK_PREFIX "RSTS"); /* All new models */
-
-/* Brightness */
-ASUS_HANDLE(brightness_set, ASUS_HOTK_PREFIX "SPLV");
-ASUS_HANDLE(brightness_get, ASUS_HOTK_PREFIX "GPLV");
-
-/* Backlight */
-ASUS_HANDLE(lcd_switch, "\\_SB.PCI0.SBRG.EC0._Q10", /* All new models */
- "\\_SB.PCI0.ISA.EC0._Q10", /* A1x */
- "\\_SB.PCI0.PX40.ECD0._Q10", /* L3C */
- "\\_SB.PCI0.PX40.EC0.Q10", /* M1A */
- "\\_SB.PCI0.LPCB.EC0._Q10", /* P30 */
- "\\_SB.PCI0.LPCB.EC0._Q0E", /* P30/P35 */
- "\\_SB.PCI0.PX40.Q10", /* S1x */
- "\\Q10"); /* A2x, L2D, L3D, M2E */
-
-/* Display */
-ASUS_HANDLE(display_set, ASUS_HOTK_PREFIX "SDSP");
-ASUS_HANDLE(display_get, "\\_SB.PCI0.P0P1.VGA.GETD", /* A6B, A6K A6R A7D F3JM L4R M6R A3G
- M6A M6V VX-1 V6J V6V W3Z */
- "\\_SB.PCI0.P0P2.VGA.GETD", /* A3E A4K, A4D A4L A6J A7J A8J Z71V M9V
- S5A M5A z33A W1Jc W2V G1 */
- "\\_SB.PCI0.P0P3.VGA.GETD", /* A6V A6Q */
- "\\_SB.PCI0.P0PA.VGA.GETD", /* A6T, A6M */
- "\\_SB.PCI0.PCI1.VGAC.NMAP", /* L3C */
- "\\_SB.PCI0.VGA.GETD", /* Z96F */
- "\\ACTD", /* A2D */
- "\\ADVG", /* A4G Z71A W1N W5A W5F M2N M3N M5N M6N S1N S5N */
- "\\DNXT", /* P30 */
- "\\INFB", /* A2H D1 L2D L3D L3H L2E L5D L5C M1A M2E L4L W3V */
- "\\SSTE"); /* A3F A6F A3N A3L M6N W3N W6A */
-
-ASUS_HANDLE(ls_switch, ASUS_HOTK_PREFIX "ALSC"); /* Z71A Z71V */
-ASUS_HANDLE(ls_level, ASUS_HOTK_PREFIX "ALSL"); /* Z71A Z71V */
-
-/* GPS */
-/* R2H use different handle for GPS on/off */
-ASUS_HANDLE(gps_on, ASUS_HOTK_PREFIX "SDON"); /* R2H */
-ASUS_HANDLE(gps_off, ASUS_HOTK_PREFIX "SDOF"); /* R2H */
-ASUS_HANDLE(gps_status, ASUS_HOTK_PREFIX "GPST");
-
-/*
- * This is the main structure, we can use it to store anything interesting
- * about the hotk device
- */
-struct asus_hotk {
- char *name; //laptop name
- struct acpi_device *device; //the device we are in
- acpi_handle handle; //the handle of the hotk device
- char status; //status of the hotk, for LEDs, ...
- u32 ledd_status; //status of the LED display
- u8 light_level; //light sensor level
- u8 light_switch; //light sensor switch value
- u16 event_count[128]; //count for each event TODO make this better
-};
-
-/*
- * This header is made available to allow proper configuration given model,
- * revision number , ... this info cannot go in struct asus_hotk because it is
- * available before the hotk
- */
-static struct acpi_table_header *asus_info;
-
-/* The actual device the driver binds to */
-static struct asus_hotk *hotk;
-
-/*
- * The hotkey driver declaration
- */
-static const struct acpi_device_id asus_device_ids[] = {
- {"ATK0100", 0},
- {"", 0},
-};
-MODULE_DEVICE_TABLE(acpi, asus_device_ids);
-
-static int asus_hotk_add(struct acpi_device *device);
-static int asus_hotk_remove(struct acpi_device *device, int type);
-static struct acpi_driver asus_hotk_driver = {
- .name = ASUS_HOTK_NAME,
- .class = ASUS_HOTK_CLASS,
- .ids = asus_device_ids,
- .ops = {
- .add = asus_hotk_add,
- .remove = asus_hotk_remove,
- },
-};
-
-/* The backlight device /sys/class/backlight */
-static struct backlight_device *asus_backlight_device;
-
-/*
- * The backlight class declaration
- */
-static int read_brightness(struct backlight_device *bd);
-static int update_bl_status(struct backlight_device *bd);
-static struct backlight_ops asusbl_ops = {
- .get_brightness = read_brightness,
- .update_status = update_bl_status,
-};
-
-/* These functions actually update the LED's, and are called from a
- * workqueue. By doing this as separate work rather than when the LED
- * subsystem asks, we avoid messing with the Asus ACPI stuff during a
- * potentially bad time, such as a timer interrupt. */
-static struct workqueue_struct *led_workqueue;
-
-#define ASUS_LED(object, ledname) \
- static void object##_led_set(struct led_classdev *led_cdev, \
- enum led_brightness value); \
- static void object##_led_update(struct work_struct *ignored); \
- static int object##_led_wk; \
- static DECLARE_WORK(object##_led_work, object##_led_update); \
- static struct led_classdev object##_led = { \
- .name = "asus::" ledname, \
- .brightness_set = object##_led_set, \
- }
-
-ASUS_LED(mled, "mail");
-ASUS_LED(tled, "touchpad");
-ASUS_LED(rled, "record");
-ASUS_LED(pled, "phone");
-ASUS_LED(gled, "gaming");
-
-/*
- * This function evaluates an ACPI method, given an int as parameter, the
- * method is searched within the scope of the handle, can be NULL. The output
- * of the method is written is output, which can also be NULL
- *
- * returns 0 if write is successful, -1 else.
- */
-static int write_acpi_int(acpi_handle handle, const char *method, int val,
- struct acpi_buffer *output)
-{
- struct acpi_object_list params; //list of input parameters (an int here)
- union acpi_object in_obj; //the only param we use
- acpi_status status;
-
- if (!handle)
- return 0;
-
- params.count = 1;
- params.pointer = &in_obj;
- in_obj.type = ACPI_TYPE_INTEGER;
- in_obj.integer.value = val;
-
- status = acpi_evaluate_object(handle, (char *)method, &params, output);
- if (status == AE_OK)
- return 0;
- else
- return -1;
-}
-
-static int read_wireless_status(int mask)
-{
- unsigned long long status;
- acpi_status rv = AE_OK;
-
- if (!wireless_status_handle)
- return (hotk->status & mask) ? 1 : 0;
-
- rv = acpi_evaluate_integer(wireless_status_handle, NULL, NULL, &status);
- if (ACPI_FAILURE(rv))
- printk(ASUS_WARNING "Error reading Wireless status\n");
- else
- return (status & mask) ? 1 : 0;
-
- return (hotk->status & mask) ? 1 : 0;
-}
-
-static int read_gps_status(void)
-{
- unsigned long long status;
- acpi_status rv = AE_OK;
-
- rv = acpi_evaluate_integer(gps_status_handle, NULL, NULL, &status);
- if (ACPI_FAILURE(rv))
- printk(ASUS_WARNING "Error reading GPS status\n");
- else
- return status ? 1 : 0;
-
- return (hotk->status & GPS_ON) ? 1 : 0;
-}
-
-/* Generic LED functions */
-static int read_status(int mask)
-{
- /* There is a special method for both wireless devices */
- if (mask == BT_ON || mask == WL_ON)
- return read_wireless_status(mask);
- else if (mask == GPS_ON)
- return read_gps_status();
-
- return (hotk->status & mask) ? 1 : 0;
-}
-
-static void write_status(acpi_handle handle, int out, int mask)
-{
- hotk->status = (out) ? (hotk->status | mask) : (hotk->status & ~mask);
-
- switch (mask) {
- case MLED_ON:
- out = !(out & 0x1);
- break;
- case GLED_ON:
- out = (out & 0x1) + 1;
- break;
- case GPS_ON:
- handle = (out) ? gps_on_handle : gps_off_handle;
- out = 0x02;
- break;
- default:
- out &= 0x1;
- break;
- }
-
- if (write_acpi_int(handle, NULL, out, NULL))
- printk(ASUS_WARNING " write failed %x\n", mask);
-}
-
-/* /sys/class/led handlers */
-#define ASUS_LED_HANDLER(object, mask) \
- static void object##_led_set(struct led_classdev *led_cdev, \
- enum led_brightness value) \
- { \
- object##_led_wk = (value > 0) ? 1 : 0; \
- queue_work(led_workqueue, &object##_led_work); \
- } \
- static void object##_led_update(struct work_struct *ignored) \
- { \
- int value = object##_led_wk; \
- write_status(object##_set_handle, value, (mask)); \
- }
-
-ASUS_LED_HANDLER(mled, MLED_ON);
-ASUS_LED_HANDLER(pled, PLED_ON);
-ASUS_LED_HANDLER(rled, RLED_ON);
-ASUS_LED_HANDLER(tled, TLED_ON);
-ASUS_LED_HANDLER(gled, GLED_ON);
-
-static int get_lcd_state(void)
-{
- return read_status(LCD_ON);
-}
-
-static int set_lcd_state(int value)
-{
- int lcd = 0;
- acpi_status status = 0;
-
- lcd = value ? 1 : 0;
-
- if (lcd == get_lcd_state())
- return 0;
-
- if (lcd_switch_handle) {
- status = acpi_evaluate_object(lcd_switch_handle,
- NULL, NULL, NULL);
-
- if (ACPI_FAILURE(status))
- printk(ASUS_WARNING "Error switching LCD\n");
- }
-
- write_status(NULL, lcd, LCD_ON);
- return 0;
-}
-
-static void lcd_blank(int blank)
-{
- struct backlight_device *bd = asus_backlight_device;
-
- if (bd) {
- bd->props.power = blank;
- backlight_update_status(bd);
- }
-}
-
-static int read_brightness(struct backlight_device *bd)
-{
- unsigned long long value;
- acpi_status rv = AE_OK;
-
- rv = acpi_evaluate_integer(brightness_get_handle, NULL, NULL, &value);
- if (ACPI_FAILURE(rv))
- printk(ASUS_WARNING "Error reading brightness\n");
-
- return value;
-}
-
-static int set_brightness(struct backlight_device *bd, int value)
-{
- int ret = 0;
-
- value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
- /* 0 <= value <= 15 */
-
- if (write_acpi_int(brightness_set_handle, NULL, value, NULL)) {
- printk(ASUS_WARNING "Error changing brightness\n");
- ret = -EIO;
- }
-
- return ret;
-}
-
-static int update_bl_status(struct backlight_device *bd)
-{
- int rv;
- int value = bd->props.brightness;
-
- rv = set_brightness(bd, value);
- if (rv)
- return rv;
-
- value = (bd->props.power == FB_BLANK_UNBLANK) ? 1 : 0;
- return set_lcd_state(value);
-}
-
-/*
- * Platform device handlers
- */
-
-/*
- * We write our info in page, we begin at offset off and cannot write more
- * than count bytes. We set eof to 1 if we handle those 2 values. We return the
- * number of bytes written in page
- */
-static ssize_t show_infos(struct device *dev,
- struct device_attribute *attr, char *page)
-{
- int len = 0;
- unsigned long long temp;
- char buf[16]; //enough for all info
- acpi_status rv = AE_OK;
-
- /*
- * We use the easy way, we don't care of off and count, so we don't set eof
- * to 1
- */
-
- len += sprintf(page, ASUS_HOTK_NAME " " ASUS_LAPTOP_VERSION "\n");
- len += sprintf(page + len, "Model reference : %s\n", hotk->name);
- /*
- * The SFUN method probably allows the original driver to get the list
- * of features supported by a given model. For now, 0x0100 or 0x0800
- * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
- * The significance of others is yet to be found.
- */
- rv = acpi_evaluate_integer(hotk->handle, "SFUN", NULL, &temp);
- if (!ACPI_FAILURE(rv))
- len += sprintf(page + len, "SFUN value : 0x%04x\n",
- (uint) temp);
- /*
- * Another value for userspace: the ASYM method returns 0x02 for
- * battery low and 0x04 for battery critical, its readings tend to be
- * more accurate than those provided by _BST.
- * Note: since not all the laptops provide this method, errors are
- * silently ignored.
- */
- rv = acpi_evaluate_integer(hotk->handle, "ASYM", NULL, &temp);
- if (!ACPI_FAILURE(rv))
- len += sprintf(page + len, "ASYM value : 0x%04x\n",
- (uint) temp);
- if (asus_info) {
- snprintf(buf, 16, "%d", asus_info->length);
- len += sprintf(page + len, "DSDT length : %s\n", buf);
- snprintf(buf, 16, "%d", asus_info->checksum);
- len += sprintf(page + len, "DSDT checksum : %s\n", buf);
- snprintf(buf, 16, "%d", asus_info->revision);
- len += sprintf(page + len, "DSDT revision : %s\n", buf);
- snprintf(buf, 7, "%s", asus_info->oem_id);
- len += sprintf(page + len, "OEM id : %s\n", buf);
- snprintf(buf, 9, "%s", asus_info->oem_table_id);
- len += sprintf(page + len, "OEM table id : %s\n", buf);
- snprintf(buf, 16, "%x", asus_info->oem_revision);
- len += sprintf(page + len, "OEM revision : 0x%s\n", buf);
- snprintf(buf, 5, "%s", asus_info->asl_compiler_id);
- len += sprintf(page + len, "ASL comp vendor id : %s\n", buf);
- snprintf(buf, 16, "%x", asus_info->asl_compiler_revision);
- len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf);
- }
-
- return len;
-}
-
-static int parse_arg(const char *buf, unsigned long count, int *val)
-{
- if (!count)
- return 0;
- if (count > 31)
- return -EINVAL;
- if (sscanf(buf, "%i", val) != 1)
- return -EINVAL;
- return count;
-}
-
-static ssize_t store_status(const char *buf, size_t count,
- acpi_handle handle, int mask)
-{
- int rv, value;
- int out = 0;
-
- rv = parse_arg(buf, count, &value);
- if (rv > 0)
- out = value ? 1 : 0;
-
- write_status(handle, out, mask);
-
- return rv;
-}
-
-/*
- * LEDD display
- */
-static ssize_t show_ledd(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return sprintf(buf, "0x%08x\n", hotk->ledd_status);
-}
-
-static ssize_t store_ledd(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- int rv, value;
-
- rv = parse_arg(buf, count, &value);
- if (rv > 0) {
- if (write_acpi_int(ledd_set_handle, NULL, value, NULL))
- printk(ASUS_WARNING "LED display write failed\n");
- else
- hotk->ledd_status = (u32) value;
- }
- return rv;
-}
-
-/*
- * WLAN
- */
-static ssize_t show_wlan(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return sprintf(buf, "%d\n", read_status(WL_ON));
-}
-
-static ssize_t store_wlan(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- return store_status(buf, count, wl_switch_handle, WL_ON);
-}
-
-/*
- * Bluetooth
- */
-static ssize_t show_bluetooth(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return sprintf(buf, "%d\n", read_status(BT_ON));
-}
-
-static ssize_t store_bluetooth(struct device *dev,
- struct device_attribute *attr, const char *buf,
- size_t count)
-{
- return store_status(buf, count, bt_switch_handle, BT_ON);
-}
-
-/*
- * Display
- */
-static void set_display(int value)
-{
- /* no sanity check needed for now */
- if (write_acpi_int(display_set_handle, NULL, value, NULL))
- printk(ASUS_WARNING "Error setting display\n");
- return;
-}
-
-static int read_display(void)
-{
- unsigned long long value = 0;
- acpi_status rv = AE_OK;
-
- /* In most of the case, we know how to set the display, but sometime
- we can't read it */
- if (display_get_handle) {
- rv = acpi_evaluate_integer(display_get_handle, NULL,
- NULL, &value);
- if (ACPI_FAILURE(rv))
- printk(ASUS_WARNING "Error reading display status\n");
- }
-
- value &= 0x0F; /* needed for some models, shouldn't hurt others */
-
- return value;
-}
-
-/*
- * Now, *this* one could be more user-friendly, but so far, no-one has
- * complained. The significance of bits is the same as in store_disp()
- */
-static ssize_t show_disp(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return sprintf(buf, "%d\n", read_display());
-}
-
-/*
- * Experimental support for display switching. As of now: 1 should activate
- * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI.
- * Any combination (bitwise) of these will suffice. I never actually tested 4
- * displays hooked up simultaneously, so be warned. See the acpi4asus README
- * for more info.
- */
-static ssize_t store_disp(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- int rv, value;
-
- rv = parse_arg(buf, count, &value);
- if (rv > 0)
- set_display(value);
- return rv;
-}
-
-/*
- * Light Sens
- */
-static void set_light_sens_switch(int value)
-{
- if (write_acpi_int(ls_switch_handle, NULL, value, NULL))
- printk(ASUS_WARNING "Error setting light sensor switch\n");
- hotk->light_switch = value;
-}
-
-static ssize_t show_lssw(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return sprintf(buf, "%d\n", hotk->light_switch);
-}
-
-static ssize_t store_lssw(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- int rv, value;
-
- rv = parse_arg(buf, count, &value);
- if (rv > 0)
- set_light_sens_switch(value ? 1 : 0);
-
- return rv;
-}
-
-static void set_light_sens_level(int value)
-{
- if (write_acpi_int(ls_level_handle, NULL, value, NULL))
- printk(ASUS_WARNING "Error setting light sensor level\n");
- hotk->light_level = value;
-}
-
-static ssize_t show_lslvl(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return sprintf(buf, "%d\n", hotk->light_level);
-}
-
-static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- int rv, value;
-
- rv = parse_arg(buf, count, &value);
- if (rv > 0) {
- value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
- /* 0 <= value <= 15 */
- set_light_sens_level(value);
- }
-
- return rv;
-}
-
-/*
- * GPS
- */
-static ssize_t show_gps(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return sprintf(buf, "%d\n", read_status(GPS_ON));
-}
-
-static ssize_t store_gps(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- return store_status(buf, count, NULL, GPS_ON);
-}
-
-static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
-{
- /* TODO Find a better way to handle events count. */
- if (!hotk)
- return;
-
- /*
- * We need to tell the backlight device when the backlight power is
- * switched
- */
- if (event == ATKD_LCD_ON) {
- write_status(NULL, 1, LCD_ON);
- lcd_blank(FB_BLANK_UNBLANK);
- } else if (event == ATKD_LCD_OFF) {
- write_status(NULL, 0, LCD_ON);
- lcd_blank(FB_BLANK_POWERDOWN);
- }
-
- acpi_bus_generate_proc_event(hotk->device, event,
- hotk->event_count[event % 128]++);
-
- return;
-}
-
-#define ASUS_CREATE_DEVICE_ATTR(_name) \
- struct device_attribute dev_attr_##_name = { \
- .attr = { \
- .name = __stringify(_name), \
- .mode = 0 }, \
- .show = NULL, \
- .store = NULL, \
- }
-
-#define ASUS_SET_DEVICE_ATTR(_name, _mode, _show, _store) \
- do { \
- dev_attr_##_name.attr.mode = _mode; \
- dev_attr_##_name.show = _show; \
- dev_attr_##_name.store = _store; \
- } while(0)
-
-static ASUS_CREATE_DEVICE_ATTR(infos);
-static ASUS_CREATE_DEVICE_ATTR(wlan);
-static ASUS_CREATE_DEVICE_ATTR(bluetooth);
-static ASUS_CREATE_DEVICE_ATTR(display);
-static ASUS_CREATE_DEVICE_ATTR(ledd);
-static ASUS_CREATE_DEVICE_ATTR(ls_switch);
-static ASUS_CREATE_DEVICE_ATTR(ls_level);
-static ASUS_CREATE_DEVICE_ATTR(gps);
-
-static struct attribute *asuspf_attributes[] = {
- &dev_attr_infos.attr,
- &dev_attr_wlan.attr,
- &dev_attr_bluetooth.attr,
- &dev_attr_display.attr,
- &dev_attr_ledd.attr,
- &dev_attr_ls_switch.attr,
- &dev_attr_ls_level.attr,
- &dev_attr_gps.attr,
- NULL
-};
-
-static struct attribute_group asuspf_attribute_group = {
- .attrs = asuspf_attributes
-};
-
-static struct platform_driver asuspf_driver = {
- .driver = {
- .name = ASUS_HOTK_FILE,
- .owner = THIS_MODULE,
- }
-};
-
-static struct platform_device *asuspf_device;
-
-static void asus_hotk_add_fs(void)
-{
- ASUS_SET_DEVICE_ATTR(infos, 0444, show_infos, NULL);
-
- if (wl_switch_handle)
- ASUS_SET_DEVICE_ATTR(wlan, 0644, show_wlan, store_wlan);
-
- if (bt_switch_handle)
- ASUS_SET_DEVICE_ATTR(bluetooth, 0644,
- show_bluetooth, store_bluetooth);
-
- if (display_set_handle && display_get_handle)
- ASUS_SET_DEVICE_ATTR(display, 0644, show_disp, store_disp);
- else if (display_set_handle)
- ASUS_SET_DEVICE_ATTR(display, 0200, NULL, store_disp);
-
- if (ledd_set_handle)
- ASUS_SET_DEVICE_ATTR(ledd, 0644, show_ledd, store_ledd);
-
- if (ls_switch_handle && ls_level_handle) {
- ASUS_SET_DEVICE_ATTR(ls_level, 0644, show_lslvl, store_lslvl);
- ASUS_SET_DEVICE_ATTR(ls_switch, 0644, show_lssw, store_lssw);
- }
-
- if (gps_status_handle && gps_on_handle && gps_off_handle)
- ASUS_SET_DEVICE_ATTR(gps, 0644, show_gps, store_gps);
-}
-
-static int asus_handle_init(char *name, acpi_handle * handle,
- char **paths, int num_paths)
-{
- int i;
- acpi_status status;
-
- for (i = 0; i < num_paths; i++) {
- status = acpi_get_handle(NULL, paths[i], handle);
- if (ACPI_SUCCESS(status))
- return 0;
- }
-
- *handle = NULL;
- return -ENODEV;
-}
-
-#define ASUS_HANDLE_INIT(object) \
- asus_handle_init(#object, &object##_handle, object##_paths, \
- ARRAY_SIZE(object##_paths))
-
-/*
- * This function is used to initialize the hotk with right values. In this
- * method, we can make all the detection we want, and modify the hotk struct
- */
-static int asus_hotk_get_info(void)
-{
- struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *model = NULL;
- unsigned long long bsts_result, hwrs_result;
- char *string = NULL;
- acpi_status status;
-
- /*
- * Get DSDT headers early enough to allow for differentiating between
- * models, but late enough to allow acpi_bus_register_driver() to fail
- * before doing anything ACPI-specific. Should we encounter a machine,
- * which needs special handling (i.e. its hotkey device has a different
- * HID), this bit will be moved. A global variable asus_info contains
- * the DSDT header.
- */
- status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus_info);
- if (ACPI_FAILURE(status))
- printk(ASUS_WARNING "Couldn't get the DSDT table header\n");
-
- /* We have to write 0 on init this far for all ASUS models */
- if (write_acpi_int(hotk->handle, "INIT", 0, &buffer)) {
- printk(ASUS_ERR "Hotkey initialization failed\n");
- return -ENODEV;
- }
-
- /* This needs to be called for some laptops to init properly */
- status =
- acpi_evaluate_integer(hotk->handle, "BSTS", NULL, &bsts_result);
- if (ACPI_FAILURE(status))
- printk(ASUS_WARNING "Error calling BSTS\n");
- else if (bsts_result)
- printk(ASUS_NOTICE "BSTS called, 0x%02x returned\n",
- (uint) bsts_result);
-
- /* This too ... */
- write_acpi_int(hotk->handle, "CWAP", wapf, NULL);
-
- /*
- * Try to match the object returned by INIT to the specific model.
- * Handle every possible object (or the lack of thereof) the DSDT
- * writers might throw at us. When in trouble, we pass NULL to
- * asus_model_match() and try something completely different.
- */
- if (buffer.pointer) {
- model = buffer.pointer;
- switch (model->type) {
- case ACPI_TYPE_STRING:
- string = model->string.pointer;
- break;
- case ACPI_TYPE_BUFFER:
- string = model->buffer.pointer;
- break;
- default:
- string = "";
- break;
- }
- }
- hotk->name = kstrdup(string, GFP_KERNEL);
- if (!hotk->name)
- return -ENOMEM;
-
- if (*string)
- printk(ASUS_NOTICE " %s model detected\n", string);
-
- ASUS_HANDLE_INIT(mled_set);
- ASUS_HANDLE_INIT(tled_set);
- ASUS_HANDLE_INIT(rled_set);
- ASUS_HANDLE_INIT(pled_set);
- ASUS_HANDLE_INIT(gled_set);
-
- ASUS_HANDLE_INIT(ledd_set);
-
- /*
- * The HWRS method return informations about the hardware.
- * 0x80 bit is for WLAN, 0x100 for Bluetooth.
- * The significance of others is yet to be found.
- * If we don't find the method, we assume the device are present.
- */
- status =
- acpi_evaluate_integer(hotk->handle, "HRWS", NULL, &hwrs_result);
- if (ACPI_FAILURE(status))
- hwrs_result = WL_HWRS | BT_HWRS;
-
- if (hwrs_result & WL_HWRS)
- ASUS_HANDLE_INIT(wl_switch);
- if (hwrs_result & BT_HWRS)
- ASUS_HANDLE_INIT(bt_switch);
-
- ASUS_HANDLE_INIT(wireless_status);
-
- ASUS_HANDLE_INIT(brightness_set);
- ASUS_HANDLE_INIT(brightness_get);
-
- ASUS_HANDLE_INIT(lcd_switch);
-
- ASUS_HANDLE_INIT(display_set);
- ASUS_HANDLE_INIT(display_get);
-
- /* There is a lot of models with "ALSL", but a few get
- a real light sens, so we need to check it. */
- if (!ASUS_HANDLE_INIT(ls_switch))
- ASUS_HANDLE_INIT(ls_level);
-
- ASUS_HANDLE_INIT(gps_on);
- ASUS_HANDLE_INIT(gps_off);
- ASUS_HANDLE_INIT(gps_status);
-
- kfree(model);
-
- return AE_OK;
-}
-
-static int asus_hotk_check(void)
-{
- int result = 0;
-
- result = acpi_bus_get_status(hotk->device);
- if (result)
- return result;
-
- if (hotk->device->status.present) {
- result = asus_hotk_get_info();
- } else {
- printk(ASUS_ERR "Hotkey device not present, aborting\n");
- return -EINVAL;
- }
-
- return result;
-}
-
-static int asus_hotk_found;
-
-static int asus_hotk_add(struct acpi_device *device)
-{
- acpi_status status = AE_OK;
- int result;
-
- if (!device)
- return -EINVAL;
-
- printk(ASUS_NOTICE "Asus Laptop Support version %s\n",
- ASUS_LAPTOP_VERSION);
-
- hotk = kzalloc(sizeof(struct asus_hotk), GFP_KERNEL);
- if (!hotk)
- return -ENOMEM;
-
- hotk->handle = device->handle;
- strcpy(acpi_device_name(device), ASUS_HOTK_DEVICE_NAME);
- strcpy(acpi_device_class(device), ASUS_HOTK_CLASS);
- device->driver_data = hotk;
- hotk->device = device;
-
- result = asus_hotk_check();
- if (result)
- goto end;
-
- asus_hotk_add_fs();
-
- /*
- * We install the handler, it will receive the hotk in parameter, so, we
- * could add other data to the hotk struct
- */
- status = acpi_install_notify_handler(hotk->handle, ACPI_ALL_NOTIFY,
- asus_hotk_notify, hotk);
- if (ACPI_FAILURE(status))
- printk(ASUS_ERR "Error installing notify handler\n");
-
- asus_hotk_found = 1;
-
- /* WLED and BLED are on by default */
- write_status(bt_switch_handle, 1, BT_ON);
- write_status(wl_switch_handle, 1, WL_ON);
-
- /* If the h/w switch is off, we need to check the real status */
- write_status(NULL, read_status(BT_ON), BT_ON);
- write_status(NULL, read_status(WL_ON), WL_ON);
-
- /* LCD Backlight is on by default */
- write_status(NULL, 1, LCD_ON);
-
- /* LED display is off by default */
- hotk->ledd_status = 0xFFF;
-
- /* Set initial values of light sensor and level */
- hotk->light_switch = 1; /* Default to light sensor disabled */
- hotk->light_level = 0; /* level 5 for sensor sensitivity */
-
- if (ls_switch_handle)
- set_light_sens_switch(hotk->light_switch);
-
- if (ls_level_handle)
- set_light_sens_level(hotk->light_level);
-
- /* GPS is on by default */
- write_status(NULL, 1, GPS_ON);
-
- end:
- if (result) {
- kfree(hotk->name);
- kfree(hotk);
- }
-
- return result;
-}
-
-static int asus_hotk_remove(struct acpi_device *device, int type)
-{
- acpi_status status = 0;
-
- if (!device || !acpi_driver_data(device))
- return -EINVAL;
-
- status = acpi_remove_notify_handler(hotk->handle, ACPI_ALL_NOTIFY,
- asus_hotk_notify);
- if (ACPI_FAILURE(status))
- printk(ASUS_ERR "Error removing notify handler\n");
-
- kfree(hotk->name);
- kfree(hotk);
-
- return 0;
-}
-
-static void asus_backlight_exit(void)
-{
- if (asus_backlight_device)
- backlight_device_unregister(asus_backlight_device);
-}
-
-#define ASUS_LED_UNREGISTER(object) \
- if (object##_led.dev) \
- led_classdev_unregister(&object##_led)
-
-static void asus_led_exit(void)
-{
- destroy_workqueue(led_workqueue);
- ASUS_LED_UNREGISTER(mled);
- ASUS_LED_UNREGISTER(tled);
- ASUS_LED_UNREGISTER(pled);
- ASUS_LED_UNREGISTER(rled);
- ASUS_LED_UNREGISTER(gled);
-}
-
-static void __exit asus_laptop_exit(void)
-{
- asus_backlight_exit();
- asus_led_exit();
-
- acpi_bus_unregister_driver(&asus_hotk_driver);
- sysfs_remove_group(&asuspf_device->dev.kobj, &asuspf_attribute_group);
- platform_device_unregister(asuspf_device);
- platform_driver_unregister(&asuspf_driver);
-}
-
-static int asus_backlight_init(struct device *dev)
-{
- struct backlight_device *bd;
-
- if (brightness_set_handle && lcd_switch_handle) {
- bd = backlight_device_register(ASUS_HOTK_FILE, dev,
- NULL, &asusbl_ops);
- if (IS_ERR(bd)) {
- printk(ASUS_ERR
- "Could not register asus backlight device\n");
- asus_backlight_device = NULL;
- return PTR_ERR(bd);
- }
-
- asus_backlight_device = bd;
-
- bd->props.max_brightness = 15;
- bd->props.brightness = read_brightness(NULL);
- bd->props.power = FB_BLANK_UNBLANK;
- backlight_update_status(bd);
- }
- return 0;
-}
-
-static int asus_led_register(acpi_handle handle,
- struct led_classdev *ldev, struct device *dev)
-{
- if (!handle)
- return 0;
-
- return led_classdev_register(dev, ldev);
-}
-
-#define ASUS_LED_REGISTER(object, device) \
- asus_led_register(object##_set_handle, &object##_led, device)
-
-static int asus_led_init(struct device *dev)
-{
- int rv;
-
- rv = ASUS_LED_REGISTER(mled, dev);
- if (rv)
- goto out;
-
- rv = ASUS_LED_REGISTER(tled, dev);
- if (rv)
- goto out1;
-
- rv = ASUS_LED_REGISTER(rled, dev);
- if (rv)
- goto out2;
-
- rv = ASUS_LED_REGISTER(pled, dev);
- if (rv)
- goto out3;
-
- rv = ASUS_LED_REGISTER(gled, dev);
- if (rv)
- goto out4;
-
- led_workqueue = create_singlethread_workqueue("led_workqueue");
- if (!led_workqueue)
- goto out5;
-
- return 0;
-out5:
- rv = -ENOMEM;
- ASUS_LED_UNREGISTER(gled);
-out4:
- ASUS_LED_UNREGISTER(pled);
-out3:
- ASUS_LED_UNREGISTER(rled);
-out2:
- ASUS_LED_UNREGISTER(tled);
-out1:
- ASUS_LED_UNREGISTER(mled);
-out:
- return rv;
-}
-
-static int __init asus_laptop_init(void)
-{
- struct device *dev;
- int result;
-
- if (acpi_disabled)
- return -ENODEV;
-
- result = acpi_bus_register_driver(&asus_hotk_driver);
- if (result < 0)
- return result;
-
- /*
- * This is a bit of a kludge. We only want this module loaded
- * for ASUS systems, but there's currently no way to probe the
- * ACPI namespace for ASUS HIDs. So we just return failure if
- * we didn't find one, which will cause the module to be
- * unloaded.
- */
- if (!asus_hotk_found) {
- acpi_bus_unregister_driver(&asus_hotk_driver);
- return -ENODEV;
- }
-
- dev = acpi_get_physical_device(hotk->device->handle);
-
- if (!acpi_video_backlight_support()) {
- result = asus_backlight_init(dev);
- if (result)
- goto fail_backlight;
- } else
- printk(ASUS_INFO "Brightness ignored, must be controlled by "
- "ACPI video driver\n");
-
- result = asus_led_init(dev);
- if (result)
- goto fail_led;
-
- /* Register platform stuff */
- result = platform_driver_register(&asuspf_driver);
- if (result)
- goto fail_platform_driver;
-
- asuspf_device = platform_device_alloc(ASUS_HOTK_FILE, -1);
- if (!asuspf_device) {
- result = -ENOMEM;
- goto fail_platform_device1;
- }
-
- result = platform_device_add(asuspf_device);
- if (result)
- goto fail_platform_device2;
-
- result = sysfs_create_group(&asuspf_device->dev.kobj,
- &asuspf_attribute_group);
- if (result)
- goto fail_sysfs;
-
- return 0;
-
- fail_sysfs:
- platform_device_del(asuspf_device);
-
- fail_platform_device2:
- platform_device_put(asuspf_device);
-
- fail_platform_device1:
- platform_driver_unregister(&asuspf_driver);
-
- fail_platform_driver:
- asus_led_exit();
-
- fail_led:
- asus_backlight_exit();
-
- fail_backlight:
-
- return result;
-}
-
-module_init(asus_laptop_init);
-module_exit(asus_laptop_exit);
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