// SPDX-License-Identifier: GPL-2.0-or-later
/*
* asus - laptop . c - Asus Laptop Support
*
* Copyright ( C ) 2002 - 2005 Julien Lerouge , 2003 - 2006 Karol Kozimor
* Copyright ( C ) 2006 - 2007 Corentin Chary
* Copyright ( C ) 2011 Wind River Systems
*
* 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 helpful
* Sam Lin - GPS support
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#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/leds.h>
#include <linux/platform_device.h>
#include <linux/uaccess.h>
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
#include <linux/rfkill.h>
#include <linux/slab.h>
#include <linux/dmi.h>
#include <linux/acpi.h>
#include <acpi/video.h>
#define ASUS_LAPTOP_VERSION "0.42"
#define ASUS_LAPTOP_NAME "Asus Laptop Support"
#define ASUS_LAPTOP_CLASS "hotkey"
#define ASUS_LAPTOP_DEVICE_NAME "Hotkey"
#define ASUS_LAPTOP_FILE KBUILD_MODNAME
#define ASUS_LAPTOP_PREFIX "\\_SB.ATKD."
MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary" );
MODULE_DESCRIPTION(ASUS_LAPTOP_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 :
* Bit | Bluetooth | WLAN
* 0 | Hardware | Hardware
* 1 | Hardware | Software
* 4 | Software | Software
*/
static uint wapf = 1 ;
module_param(wapf, uint, 0444 );
MODULE_PARM_DESC(wapf, "WAPF value" );
static char *wled_type = "unknown" ;
static char *bled_type = "unknown" ;
module_param(wled_type, charp, 0444 );
MODULE_PARM_DESC(wled_type, "Set the wled type on boot "
"(unknown, led or rfkill). "
"default is unknown" );
module_param(bled_type, charp, 0444 );
MODULE_PARM_DESC(bled_type, "Set the bled type on boot "
"(unknown, led or rfkill). "
"default is unknown" );
static int wlan_status = 1 ;
static int bluetooth_status = 1 ;
static int wimax_status = -1 ;
static int wwan_status = -1 ;
static int als_status;
module_param(wlan_status, int , 0444 );
MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot "
"(0 = disabled, 1 = enabled, -1 = don't do anything). "
"default is -1" );
module_param(bluetooth_status, int , 0444 );
MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot "
"(0 = disabled, 1 = enabled, -1 = don't do anything). "
"default is -1" );
module_param(wimax_status, int , 0444 );
MODULE_PARM_DESC(wimax_status, "Set the wireless status on boot "
"(0 = disabled, 1 = enabled, -1 = don't do anything). "
"default is -1" );
module_param(wwan_status, int , 0444 );
MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot "
"(0 = disabled, 1 = enabled, -1 = don't do anything). "
"default is -1" );
module_param(als_status, int , 0444 );
MODULE_PARM_DESC(als_status, "Set the ALS status on boot "
"(0 = disabled, 1 = enabled). "
"default is 0" );
/*
* Some events we use , same for all Asus
*/
#define ATKD_BRNUP_MIN 0 x10
#define ATKD_BRNUP_MAX 0 x1f
#define ATKD_BRNDOWN_MIN 0 x20
#define ATKD_BRNDOWN_MAX 0 x2f
#define ATKD_BRNDOWN 0 x20
#define ATKD_BRNUP 0 x2f
#define ATKD_LCD_ON 0 x33
#define ATKD_LCD_OFF 0 x34
/*
* Known bits returned by \ _ SB . ATKD . HWRS
*/
#define WL_HWRS 0 x80
#define BT_HWRS 0 x100
/*
* Flags for hotk status
* WL_ON and BT_ON are also used for wireless_status ( )
*/
#define WL_RSTS 0 x01 /* internal Wifi */
#define BT_RSTS 0 x02 /* internal Bluetooth */
#define WM_RSTS 0 x08 /* internal wimax */
#define WW_RSTS 0 x20 /* internal wwan */
/* WLED and BLED type */
#define TYPE_UNKNOWN 0
#define TYPE_LED 1
#define TYPE_RFKILL 2
/* LED */
#define METHOD_MLED "MLED"
#define METHOD_TLED "TLED"
#define METHOD_RLED "RLED" /* W1JC */
#define METHOD_PLED "PLED" /* A7J */
#define METHOD_GLED "GLED" /* G1, G2 (probably) */
/* LEDD */
#define METHOD_LEDD "SLCM"
/*
* Bluetooth and WLAN
* WLED and BLED are not handled like other XLED , because in some dsdt
* they also control the WLAN / Bluetooth device .
*/
#define METHOD_WLAN "WLED"
#define METHOD_BLUETOOTH "BLED"
/* WWAN and WIMAX */
#define METHOD_WWAN "GSMC"
#define METHOD_WIMAX "WMXC"
#define METHOD_WL_STATUS "RSTS"
/* Brightness */
#define METHOD_BRIGHTNESS_SET "SPLV"
#define METHOD_BRIGHTNESS_GET "GPLV"
/* Display */
#define METHOD_SWITCH_DISPLAY "SDSP"
#define METHOD_ALS_CONTROL "ALSC" /* Z71A Z71V */
#define METHOD_ALS_LEVEL "ALSL" /* Z71A Z71V */
/* GPS */
/* R2H use different handle for GPS on/off */
#define METHOD_GPS_ON "SDON"
#define METHOD_GPS_OFF "SDOF"
#define METHOD_GPS_STATUS "GPST"
/* Keyboard light */
#define METHOD_KBD_LIGHT_SET "SLKB"
#define METHOD_KBD_LIGHT_GET "GLKB"
/* For Pegatron Lucid tablet */
#define DEVICE_NAME_PEGA "Lucid"
#define METHOD_PEGA_ENABLE "ENPR"
#define METHOD_PEGA_DISABLE "DAPR"
#define PEGA_WLAN 0 x00
#define PEGA_BLUETOOTH 0 x01
#define PEGA_WWAN 0 x02
#define PEGA_ALS 0 x04
#define PEGA_ALS_POWER 0 x05
#define METHOD_PEGA_READ "RDLN"
#define PEGA_READ_ALS_H 0 x02
#define PEGA_READ_ALS_L 0 x03
#define PEGA_ACCEL_NAME "pega_accel"
#define PEGA_ACCEL_DESC "Pegatron Lucid Tablet Accelerometer"
#define METHOD_XLRX "XLRX"
#define METHOD_XLRY "XLRY"
#define METHOD_XLRZ "XLRZ"
#define PEGA_ACC_CLAMP 512 /* 1G accel is reported as ~256, so clamp to 2G */
#define PEGA_ACC_RETRIES 3
/*
* Define a specific led structure to keep the main structure clean
*/
struct asus_led {
int wk;
struct work_struct work;
struct led_classdev led;
struct asus_laptop *asus;
const char *method;
};
/*
* Same thing for rfkill
*/
struct asus_rfkill {
/* type of control. Maps to PEGA_* values or *_RSTS */
int control_id;
struct rfkill *rfkill;
struct asus_laptop *asus;
};
/*
* This is the main structure , we can use it to store anything interesting
* about the hotk device
*/
struct asus_laptop {
char *name; /* laptop name */
struct acpi_table_header *dsdt_info;
struct platform_device *platform_device;
struct acpi_device *device; /* the device we are in */
struct backlight_device *backlight_device;
struct input_dev *inputdev;
struct key_entry *keymap;
struct input_dev *pega_accel_poll;
struct asus_led wled;
struct asus_led bled;
struct asus_led mled;
struct asus_led tled;
struct asus_led rled;
struct asus_led pled;
struct asus_led gled;
struct asus_led kled;
struct workqueue_struct *led_workqueue;
int wled_type;
int bled_type;
int wireless_status;
bool have_rsts;
bool is_pega_lucid;
bool pega_acc_live;
int pega_acc_x;
int pega_acc_y;
int pega_acc_z;
struct asus_rfkill wlan;
struct asus_rfkill bluetooth;
struct asus_rfkill wwan;
struct asus_rfkill wimax;
struct asus_rfkill gps;
acpi_handle handle; /* the handle of the hotk device */
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 */
};
static const struct key_entry asus_keymap[] = {
/* Lenovo SL Specific keycodes */
{KE_KEY, 0 x02, { KEY_SCREENLOCK } },
{KE_KEY, 0 x05, { KEY_WLAN } },
{KE_KEY, 0 x08, { KEY_F13 } },
{KE_KEY, 0 x09, { KEY_PROG2 } }, /* Dock */
{KE_KEY, 0 x17, { KEY_ZOOM } },
{KE_KEY, 0 x1f, { KEY_BATTERY } },
/* End of Lenovo SL Specific keycodes */
{KE_KEY, ATKD_BRNDOWN, { KEY_BRIGHTNESSDOWN } },
{KE_KEY, ATKD_BRNUP, { KEY_BRIGHTNESSUP } },
{KE_KEY, 0 x30, { KEY_VOLUMEUP } },
{KE_KEY, 0 x31, { KEY_VOLUMEDOWN } },
{KE_KEY, 0 x32, { KEY_MUTE } },
{KE_KEY, 0 x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
{KE_KEY, 0 x34, { KEY_DISPLAY_OFF } }, /* LCD off */
{KE_KEY, 0 x40, { KEY_PREVIOUSSONG } },
{KE_KEY, 0 x41, { KEY_NEXTSONG } },
{KE_KEY, 0 x43, { KEY_STOPCD } }, /* Stop/Eject */
{KE_KEY, 0 x45, { KEY_PLAYPAUSE } },
{KE_KEY, 0 x4c, { KEY_MEDIA } }, /* WMP Key */
{KE_KEY, 0 x50, { KEY_EMAIL } },
{KE_KEY, 0 x51, { KEY_WWW } },
{KE_KEY, 0 x55, { KEY_CALC } },
{KE_IGNORE, 0 x57, }, /* Battery mode */
{KE_IGNORE, 0 x58, }, /* AC mode */
{KE_KEY, 0 x5C, { KEY_SCREENLOCK } }, /* Screenlock */
{KE_KEY, 0 x5D, { KEY_WLAN } }, /* WLAN Toggle */
{KE_KEY, 0 x5E, { KEY_WLAN } }, /* WLAN Enable */
{KE_KEY, 0 x5F, { KEY_WLAN } }, /* WLAN Disable */
{KE_KEY, 0 x60, { KEY_TOUCHPAD_ON } },
{KE_KEY, 0 x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
{KE_KEY, 0 x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
{KE_KEY, 0 x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
{KE_KEY, 0 x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
{KE_KEY, 0 x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
{KE_KEY, 0 x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
{KE_KEY, 0 x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
{KE_KEY, 0 x6A, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad Fn + F9 */
{KE_KEY, 0 x6B, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad */
{KE_KEY, 0 x6C, { KEY_SLEEP } }, /* Suspend */
{KE_KEY, 0 x6D, { KEY_SLEEP } }, /* Hibernate */
{KE_IGNORE, 0 x6E, }, /* Low Battery notification */
{KE_KEY, 0 x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
{KE_KEY, 0 x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
{KE_KEY, 0 x82, { KEY_CAMERA } },
{KE_KEY, 0 x88, { KEY_RFKILL } }, /* Radio Toggle Key */
{KE_KEY, 0 x8A, { KEY_PROG1 } }, /* Color enhancement mode */
{KE_KEY, 0 x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
{KE_KEY, 0 x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
{KE_KEY, 0 x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
{KE_KEY, 0 x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
{KE_KEY, 0 x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
{KE_KEY, 0 x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
{KE_KEY, 0 x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
{KE_KEY, 0 x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
{KE_KEY, 0 x95, { KEY_MEDIA } },
{KE_KEY, 0 x99, { KEY_PHONE } },
{KE_KEY, 0 xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
{KE_KEY, 0 xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
{KE_KEY, 0 xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
{KE_KEY, 0 xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
{KE_KEY, 0 xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
{KE_KEY, 0 xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
{KE_KEY, 0 xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
{KE_KEY, 0 xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
{KE_KEY, 0 xB5, { KEY_CALC } },
{KE_KEY, 0 xC4, { KEY_KBDILLUMUP } },
{KE_KEY, 0 xC5, { KEY_KBDILLUMDOWN } },
{KE_END, 0 },
};
/*
* 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_ret(acpi_handle handle, const char *method, int val,
struct acpi_buffer *output)
{
struct acpi_object_list params; /* list of input parameters (an int) */
union acpi_object in_obj; /* the only param we use */
acpi_status status;
if (!handle)
return -1 ;
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, ¶ms, output);
if (status == AE_OK)
return 0 ;
else
return -1 ;
}
static int write_acpi_int(acpi_handle handle, const char *method, int val)
{
return write_acpi_int_ret(handle, method, val, NULL);
}
static int acpi_check_handle(acpi_handle handle, const char *method,
acpi_handle *ret)
{
acpi_status status;
if (method == NULL)
return -ENODEV;
if (ret)
status = acpi_get_handle(handle, (char *)method,
ret);
else {
acpi_handle dummy;
status = acpi_get_handle(handle, (char *)method,
&dummy);
}
if (status != AE_OK) {
if (ret)
pr_warn("Error finding %s\n" , method);
return -ENODEV;
}
return 0 ;
}
static bool asus_check_pega_lucid(struct asus_laptop *asus)
{
return !strcmp(asus->name, DEVICE_NAME_PEGA) &&
!acpi_check_handle(asus->handle, METHOD_PEGA_ENABLE, NULL) &&
!acpi_check_handle(asus->handle, METHOD_PEGA_DISABLE, NULL) &&
!acpi_check_handle(asus->handle, METHOD_PEGA_READ, NULL);
}
static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable)
{
char *method = enable ? METHOD_PEGA_ENABLE : METHOD_PEGA_DISABLE;
return write_acpi_int(asus->handle, method, unit);
}
static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method)
{
unsigned long long val = (unsigned long long )curr;
acpi_status status;
int i, delta;
for (i = 0 ; i < PEGA_ACC_RETRIES; i++) {
status = acpi_evaluate_integer(asus->handle, method, NULL, &val);
if (ACPI_FAILURE(status))
continue ;
/* The output is noisy. From reading the ASL
* dissassembly , timeout errors are returned with 1 ' s
* in the high word , and the lack of locking around
* thei hi / lo byte reads means that a transition
* between ( for example ) - 1 and 0 could be read as
* 0xff00 or 0x00ff. */
delta = abs(curr - (short )val);
if (delta < 128 && !(val & ~0 xffff))
break ;
}
return clamp_val((short )val, -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP);
}
static void pega_accel_poll(struct input_dev *input)
{
struct device *parent = input->dev.parent;
struct asus_laptop *asus = dev_get_drvdata(parent);
/* In some cases, the very first call to poll causes a
* recursive fault under the polldev worker . This is
* apparently related to very early userspace access to the
* device, and perhaps a firmware bug. Fake the first report. */
if (!asus->pega_acc_live) {
asus->pega_acc_live = true ;
input_report_abs(input, ABS_X, 0 );
input_report_abs(input, ABS_Y, 0 );
input_report_abs(input, ABS_Z, 0 );
input_sync(input);
return ;
}
asus->pega_acc_x = pega_acc_axis(asus, asus->pega_acc_x, METHOD_XLRX);
asus->pega_acc_y = pega_acc_axis(asus, asus->pega_acc_y, METHOD_XLRY);
asus->pega_acc_z = pega_acc_axis(asus, asus->pega_acc_z, METHOD_XLRZ);
/* Note transform, convert to "right/up/out" in the native
* landscape orientation ( i . e . the vector is the direction of
* "real up" in the device's cartiesian coordinates). */
input_report_abs(input, ABS_X, -asus->pega_acc_x);
input_report_abs(input, ABS_Y, -asus->pega_acc_y);
input_report_abs(input, ABS_Z, asus->pega_acc_z);
input_sync(input);
}
static void pega_accel_exit(struct asus_laptop *asus)
{
if (asus->pega_accel_poll) {
input_unregister_device(asus->pega_accel_poll);
asus->pega_accel_poll = NULL;
}
}
static int pega_accel_init(struct asus_laptop *asus)
{
int err;
struct input_dev *input;
if (!asus->is_pega_lucid)
return -ENODEV;
if (acpi_check_handle(asus->handle, METHOD_XLRX, NULL) ||
acpi_check_handle(asus->handle, METHOD_XLRY, NULL) ||
acpi_check_handle(asus->handle, METHOD_XLRZ, NULL))
return -ENODEV;
input = input_allocate_device();
if (!input)
return -ENOMEM;
input->name = PEGA_ACCEL_DESC;
input->phys = PEGA_ACCEL_NAME "/input0" ;
input->dev.parent = &asus->platform_device->dev;
input->id.bustype = BUS_HOST;
input_set_abs_params(input, ABS_X,
-PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0 , 0 );
input_set_abs_params(input, ABS_Y,
-PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0 , 0 );
input_set_abs_params(input, ABS_Z,
-PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0 , 0 );
err = input_setup_polling(input, pega_accel_poll);
if (err)
goto exit ;
input_set_poll_interval(input, 125 );
input_set_min_poll_interval(input, 50 );
input_set_max_poll_interval(input, 2000 );
err = input_register_device(input);
if (err)
goto exit ;
asus->pega_accel_poll = input;
return 0 ;
exit :
input_free_device(input);
return err;
}
/* Generic LED function */
static int asus_led_set(struct asus_laptop *asus, const char *method,
int value)
{
if (!strcmp(method, METHOD_MLED))
value = !value;
else if (!strcmp(method, METHOD_GLED))
value = !value + 1 ;
else
value = !!value;
return write_acpi_int(asus->handle, method, value);
}
/*
* LEDs
*/
/* /sys/class/led handlers */
static void asus_led_cdev_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct asus_led *led = container_of(led_cdev, struct asus_led, led);
struct asus_laptop *asus = led->asus;
led->wk = !!value;
queue_work(asus->led_workqueue, &led->work);
}
static void asus_led_cdev_update(struct work_struct *work)
{
struct asus_led *led = container_of(work, struct asus_led, work);
struct asus_laptop *asus = led->asus;
asus_led_set(asus, led->method, led->wk);
}
static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev)
{
return led_cdev->brightness;
}
/*
* Keyboard backlight ( also a LED )
*/
static int asus_kled_lvl(struct asus_laptop *asus)
{
unsigned long long kblv;
struct acpi_object_list params;
union acpi_object in_obj;
acpi_status rv;
params.count = 1 ;
params.pointer = &in_obj;
in_obj.type = ACPI_TYPE_INTEGER;
in_obj.integer.value = 2 ;
rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET,
¶ms, &kblv);
if (ACPI_FAILURE(rv)) {
pr_warn("Error reading kled level\n" );
return -ENODEV;
}
return kblv;
}
static int asus_kled_set(struct asus_laptop *asus, int kblv)
{
if (kblv > 0 )
kblv = (1 << 7 ) | (kblv & 0 x7F);
else
kblv = 0 ;
if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) {
pr_warn("Keyboard LED display write failed\n" );
return -EINVAL;
}
return 0 ;
}
static void asus_kled_cdev_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct asus_led *led = container_of(led_cdev, struct asus_led, led);
struct asus_laptop *asus = led->asus;
led->wk = value;
queue_work(asus->led_workqueue, &led->work);
}
static void asus_kled_cdev_update(struct work_struct *work)
{
struct asus_led *led = container_of(work, struct asus_led, work);
struct asus_laptop *asus = led->asus;
asus_kled_set(asus, led->wk);
}
static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev)
{
struct asus_led *led = container_of(led_cdev, struct asus_led, led);
struct asus_laptop *asus = led->asus;
return asus_kled_lvl(asus);
}
static void asus_led_exit(struct asus_laptop *asus)
{
led_classdev_unregister(&asus->wled.led);
led_classdev_unregister(&asus->bled.led);
led_classdev_unregister(&asus->mled.led);
led_classdev_unregister(&asus->tled.led);
led_classdev_unregister(&asus->pled.led);
led_classdev_unregister(&asus->rled.led);
led_classdev_unregister(&asus->gled.led);
led_classdev_unregister(&asus->kled.led);
if (asus->led_workqueue) {
destroy_workqueue(asus->led_workqueue);
asus->led_workqueue = NULL;
}
}
/* Ugly macro, need to fix that later */
static int asus_led_register(struct asus_laptop *asus,
struct asus_led *led,
const char *name, const char *method)
{
struct led_classdev *led_cdev = &led->led;
if (!method || acpi_check_handle(asus->handle, method, NULL))
return 0 ; /* Led not present */
led->asus = asus;
led->method = method;
INIT_WORK(&led->work, asus_led_cdev_update);
led_cdev->name = name;
led_cdev->brightness_set = asus_led_cdev_set;
led_cdev->brightness_get = asus_led_cdev_get;
led_cdev->max_brightness = 1 ;
return led_classdev_register(&asus->platform_device->dev, led_cdev);
}
static int asus_led_init(struct asus_laptop *asus)
{
int r = 0 ;
/*
* The Pegatron Lucid has no physical leds , but all methods are
* available in the DSDT . . .
*/
if (asus->is_pega_lucid)
return 0 ;
/*
* Functions that actually update the LED ' s 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 .
*/
asus->led_workqueue = create_singlethread_workqueue("led_workqueue" );
if (!asus->led_workqueue)
return -ENOMEM;
if (asus->wled_type == TYPE_LED)
r = asus_led_register(asus, &asus->wled, "asus::wlan" ,
METHOD_WLAN);
if (r)
goto error;
if (asus->bled_type == TYPE_LED)
r = asus_led_register(asus, &asus->bled, "asus::bluetooth" ,
METHOD_BLUETOOTH);
if (r)
goto error;
r = asus_led_register(asus, &asus->mled, "asus::mail" , METHOD_MLED);
if (r)
goto error;
r = asus_led_register(asus, &asus->tled, "asus::touchpad" , METHOD_TLED);
if (r)
goto error;
r = asus_led_register(asus, &asus->rled, "asus::record" , METHOD_RLED);
if (r)
goto error;
r = asus_led_register(asus, &asus->pled, "asus::phone" , METHOD_PLED);
if (r)
goto error;
r = asus_led_register(asus, &asus->gled, "asus::gaming" , METHOD_GLED);
if (r)
goto error;
if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL) &&
!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL)) {
struct asus_led *led = &asus->kled;
struct led_classdev *cdev = &led->led;
led->asus = asus;
INIT_WORK(&led->work, asus_kled_cdev_update);
cdev->name = "asus::kbd_backlight" ;
cdev->brightness_set = asus_kled_cdev_set;
cdev->brightness_get = asus_kled_cdev_get;
cdev->max_brightness = 3 ;
r = led_classdev_register(&asus->platform_device->dev, cdev);
}
error:
if (r)
asus_led_exit(asus);
return r;
}
/*
* Backlight device
*/
static int asus_read_brightness(struct backlight_device *bd)
{
struct asus_laptop *asus = bl_get_data(bd);
unsigned long long value;
acpi_status rv;
rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET,
NULL, &value);
if (ACPI_FAILURE(rv)) {
pr_warn("Error reading brightness\n" );
return 0 ;
}
return value;
}
static int asus_set_brightness(struct backlight_device *bd, int value)
{
struct asus_laptop *asus = bl_get_data(bd);
if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) {
pr_warn("Error changing brightness\n" );
return -EIO;
}
return 0 ;
}
static int update_bl_status(struct backlight_device *bd)
{
int value = bd->props.brightness;
return asus_set_brightness(bd, value);
}
static const struct backlight_ops asusbl_ops = {
.get_brightness = asus_read_brightness,
.update_status = update_bl_status,
};
static int asus_backlight_notify(struct asus_laptop *asus)
{
struct backlight_device *bd = asus->backlight_device;
int old = bd->props.brightness;
backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
return old;
}
static int asus_backlight_init(struct asus_laptop *asus)
{
struct backlight_device *bd;
struct backlight_properties props;
if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) ||
acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL))
return 0 ;
memset(&props, 0 , sizeof (struct backlight_properties));
props.max_brightness = 15 ;
props.type = BACKLIGHT_PLATFORM;
bd = backlight_device_register(ASUS_LAPTOP_FILE,
&asus->platform_device->dev, asus,
&asusbl_ops, &props);
if (IS_ERR(bd)) {
pr_err("Could not register asus backlight device\n" );
asus->backlight_device = NULL;
return PTR_ERR(bd);
}
asus->backlight_device = bd;
bd->props.brightness = asus_read_brightness(bd);
bd->props.power = BACKLIGHT_POWER_ON;
backlight_update_status(bd);
return 0 ;
}
static void asus_backlight_exit(struct asus_laptop *asus)
{
backlight_device_unregister(asus->backlight_device);
asus->backlight_device = NULL;
}
/*
* 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 infos_show(struct device *dev, struct device_attribute *attr,
char *page)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
int len = 0 ;
unsigned long long temp;
char buf[16 ]; /* enough for all info */
acpi_status rv;
/*
* We use the easy way , we don ' t care of off and count ,
* so we don ' t set eof to 1
*/
len += sysfs_emit_at(page, len, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n" );
len += sysfs_emit_at(page, len, "Model reference : %s\n" , asus->name);
/*
* The SFUN method probably allows the original driver to get the list
* of features supported by a given model . For now , 0 x0100 or 0 x0800
* 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(asus->handle, "SFUN" , NULL, &temp);
if (ACPI_SUCCESS(rv))
len += sysfs_emit_at(page, len, "SFUN value : %#x\n" ,
(uint) temp);
/*
* The HWRS method return informations about the hardware .
* 0 x80 bit is for WLAN , 0 x100 for Bluetooth .
* 0 x40 for WWAN , 0 x10 for WIMAX .
* The significance of others is yet to be found .
* We don ' t currently use this for device detection , and it
* takes several seconds to run on some systems .
*/
rv = acpi_evaluate_integer(asus->handle, "HWRS" , NULL, &temp);
if (ACPI_SUCCESS(rv))
len += sysfs_emit_at(page, len, "HWRS value : %#x\n" ,
(uint) temp);
/*
* Another value for userspace : the ASYM method returns 0 x02 for
* battery low and 0 x04 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(asus->handle, "ASYM" , NULL, &temp);
if (ACPI_SUCCESS(rv))
len += sysfs_emit_at(page, len, "ASYM value : %#x\n" ,
(uint) temp);
if (asus->dsdt_info) {
snprintf(buf, 16 , "%d" , asus->dsdt_info->length);
len += sysfs_emit_at(page, len, "DSDT length : %s\n" , buf);
snprintf(buf, 16 , "%d" , asus->dsdt_info->checksum);
len += sysfs_emit_at(page, len, "DSDT checksum : %s\n" , buf);
snprintf(buf, 16 , "%d" , asus->dsdt_info->revision);
len += sysfs_emit_at(page, len, "DSDT revision : %s\n" , buf);
snprintf(buf, 7 , "%s" , asus->dsdt_info->oem_id);
len += sysfs_emit_at(page, len, "OEM id : %s\n" , buf);
snprintf(buf, 9 , "%s" , asus->dsdt_info->oem_table_id);
len += sysfs_emit_at(page, len, "OEM table id : %s\n" , buf);
snprintf(buf, 16 , "%x" , asus->dsdt_info->oem_revision);
len += sysfs_emit_at(page, len, "OEM revision : 0x%s\n" , buf);
snprintf(buf, 5 , "%s" , asus->dsdt_info->asl_compiler_id);
len += sysfs_emit_at(page, len, "ASL comp vendor id : %s\n" , buf);
snprintf(buf, 16 , "%x" , asus->dsdt_info->asl_compiler_revision);
len += sysfs_emit_at(page, len, "ASL comp revision : 0x%s\n" , buf);
}
return len;
}
static DEVICE_ATTR_RO(infos);
static ssize_t sysfs_acpi_set(struct asus_laptop *asus,
const char *buf, size_t count,
const char *method)
{
int rv, value;
rv = kstrtoint(buf, 0 , &value);
if (rv < 0 )
return rv;
if (write_acpi_int(asus->handle, method, value))
return -ENODEV;
return count;
}
/*
* LEDD display
*/
static ssize_t ledd_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "0x%08x\n" , asus->ledd_status);
}
static ssize_t ledd_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
int rv, value;
rv = kstrtoint(buf, 0 , &value);
if (rv < 0 )
return rv;
if (write_acpi_int(asus->handle, METHOD_LEDD, value)) {
pr_warn("LED display write failed\n" );
return -ENODEV;
}
asus->ledd_status = (u32) value;
return count;
}
static DEVICE_ATTR_RW(ledd);
/*
* Wireless
*/
static int asus_wireless_status(struct asus_laptop *asus, int mask)
{
unsigned long long status;
acpi_status rv = AE_OK;
if (!asus->have_rsts)
return (asus->wireless_status & mask) ? 1 : 0 ;
rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS,
NULL, &status);
if (ACPI_FAILURE(rv)) {
pr_warn("Error reading Wireless status\n" );
return -EINVAL;
}
return !!(status & mask);
}
/*
* WLAN
*/
static int asus_wlan_set(struct asus_laptop *asus, int status)
{
if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) {
pr_warn("Error setting wlan status to %d\n" , status);
return -EIO;
}
return 0 ;
}
static ssize_t wlan_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%d\n" , asus_wireless_status(asus, WL_RSTS));
}
static ssize_t wlan_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
return sysfs_acpi_set(asus, buf, count, METHOD_WLAN);
}
static DEVICE_ATTR_RW(wlan);
/*e
* Bluetooth
*/
static int asus_bluetooth_set(struct asus_laptop *asus, int status)
{
if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) {
pr_warn("Error setting bluetooth status to %d\n" , status);
return -EIO;
}
return 0 ;
}
static ssize_t bluetooth_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%d\n" , asus_wireless_status(asus, BT_RSTS));
}
static ssize_t bluetooth_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
return sysfs_acpi_set(asus, buf, count, METHOD_BLUETOOTH);
}
static DEVICE_ATTR_RW(bluetooth);
/*
* Wimax
*/
static int asus_wimax_set(struct asus_laptop *asus, int status)
{
if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) {
pr_warn("Error setting wimax status to %d\n" , status);
return -EIO;
}
return 0 ;
}
static ssize_t wimax_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%d\n" , asus_wireless_status(asus, WM_RSTS));
}
static ssize_t wimax_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX);
}
static DEVICE_ATTR_RW(wimax);
/*
* Wwan
*/
static int asus_wwan_set(struct asus_laptop *asus, int status)
{
if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) {
pr_warn("Error setting wwan status to %d\n" , status);
return -EIO;
}
return 0 ;
}
static ssize_t wwan_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%d\n" , asus_wireless_status(asus, WW_RSTS));
}
static ssize_t wwan_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
return sysfs_acpi_set(asus, buf, count, METHOD_WWAN);
}
static DEVICE_ATTR_RW(wwan);
/*
* Display
*/
static void asus_set_display(struct asus_laptop *asus, int value)
{
/* no sanity check needed for now */
if (write_acpi_int(asus->handle, METHOD_SWITCH_DISPLAY, value))
pr_warn("Error setting display\n" );
return ;
}
/*
* 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 display_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
int rv, value;
rv = kstrtoint(buf, 0 , &value);
if (rv < 0 )
return rv;
asus_set_display(asus, value);
return count;
}
static DEVICE_ATTR_WO(display);
/*
* Light Sens
*/
static void asus_als_switch(struct asus_laptop *asus, int value)
{
int ret;
if (asus->is_pega_lucid) {
ret = asus_pega_lucid_set(asus, PEGA_ALS, value);
if (!ret)
ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value);
} else {
ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value);
}
if (ret)
pr_warn("Error setting light sensor switch\n" );
asus->light_switch = value;
}
static ssize_t ls_switch_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%d\n" , asus->light_switch);
}
static ssize_t ls_switch_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
int rv, value;
rv = kstrtoint(buf, 0 , &value);
if (rv < 0 )
return rv;
asus_als_switch(asus, value ? 1 : 0 );
return count;
}
static DEVICE_ATTR_RW(ls_switch);
static void asus_als_level(struct asus_laptop *asus, int value)
{
if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value))
pr_warn("Error setting light sensor level\n" );
asus->light_level = value;
}
static ssize_t ls_level_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%d\n" , asus->light_level);
}
static ssize_t ls_level_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
int rv, value;
rv = kstrtoint(buf, 0 , &value);
if (rv < 0 )
return rv;
value = (0 < value) ? ((15 < value) ? 15 : value) : 0 ;
/* 0 <= value <= 15 */
asus_als_level(asus, value);
return count;
}
static DEVICE_ATTR_RW(ls_level);
static int pega_int_read(struct asus_laptop *asus, int arg, int *result)
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg,
&buffer);
if (!err) {
union acpi_object *obj = buffer.pointer;
if (obj && obj->type == ACPI_TYPE_INTEGER)
*result = obj->integer.value;
else
err = -EIO;
}
return err;
}
static ssize_t ls_value_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
int err, hi, lo;
err = pega_int_read(asus, PEGA_READ_ALS_H, &hi);
if (!err)
err = pega_int_read(asus, PEGA_READ_ALS_L, &lo);
if (!err)
return sysfs_emit(buf, "%d\n" , 10 * hi + lo);
return err;
}
static DEVICE_ATTR_RO(ls_value);
/*
* GPS
*/
static int asus_gps_status(struct asus_laptop *asus)
{
unsigned long long status;
acpi_status rv;
rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS,
NULL, &status);
if (ACPI_FAILURE(rv)) {
pr_warn("Error reading GPS status\n" );
return -ENODEV;
}
return !!status;
}
static int asus_gps_switch(struct asus_laptop *asus, int status)
{
const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF;
if (write_acpi_int(asus->handle, meth, 0 x02))
return -ENODEV;
return 0 ;
}
static ssize_t gps_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%d\n" , asus_gps_status(asus));
}
static ssize_t gps_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_laptop *asus = dev_get_drvdata(dev);
int rv, value;
int ret;
rv = kstrtoint(buf, 0 , &value);
if (rv < 0 )
return rv;
ret = asus_gps_switch(asus, !!value);
if (ret)
return ret;
rfkill_set_sw_state(asus->gps.rfkill, !value);
return count;
}
static DEVICE_ATTR_RW(gps);
/*
* rfkill
*/
static int asus_gps_rfkill_set(void *data, bool blocked)
{
struct asus_laptop *asus = data;
return asus_gps_switch(asus, !blocked);
}
static const struct rfkill_ops asus_gps_rfkill_ops = {
.set_block = asus_gps_rfkill_set,
};
static int asus_rfkill_set(void *data, bool blocked)
{
struct asus_rfkill *rfk = data;
struct asus_laptop *asus = rfk->asus;
if (rfk->control_id == WL_RSTS)
return asus_wlan_set(asus, !blocked);
else if (rfk->control_id == BT_RSTS)
return asus_bluetooth_set(asus, !blocked);
else if (rfk->control_id == WM_RSTS)
return asus_wimax_set(asus, !blocked);
else if (rfk->control_id == WW_RSTS)
return asus_wwan_set(asus, !blocked);
return -EINVAL;
}
static const struct rfkill_ops asus_rfkill_ops = {
.set_block = asus_rfkill_set,
};
static void asus_rfkill_terminate(struct asus_rfkill *rfk)
{
if (!rfk->rfkill)
return ;
rfkill_unregister(rfk->rfkill);
rfkill_destroy(rfk->rfkill);
rfk->rfkill = NULL;
}
static void asus_rfkill_exit(struct asus_laptop *asus)
{
asus_rfkill_terminate(&asus->wwan);
asus_rfkill_terminate(&asus->bluetooth);
asus_rfkill_terminate(&asus->wlan);
asus_rfkill_terminate(&asus->gps);
}
static int asus_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
const char *name, int control_id, int type,
const struct rfkill_ops *ops)
{
int result;
rfk->control_id = control_id;
rfk->asus = asus;
rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev,
type, ops, rfk);
if (!rfk->rfkill)
return -EINVAL;
result = rfkill_register(rfk->rfkill);
if (result) {
rfkill_destroy(rfk->rfkill);
rfk->rfkill = NULL;
}
return result;
}
static int asus_rfkill_init(struct asus_laptop *asus)
{
int result = 0 ;
if (asus->is_pega_lucid)
return -ENODEV;
if (!acpi_check_handle(asus->handle, METHOD_GPS_ON, NULL) &&
!acpi_check_handle(asus->handle, METHOD_GPS_OFF, NULL) &&
!acpi_check_handle(asus->handle, METHOD_GPS_STATUS, NULL))
result = asus_rfkill_setup(asus, &asus->gps, "asus-gps" ,
-1 , RFKILL_TYPE_GPS,
&asus_gps_rfkill_ops);
if (result)
goto exit ;
if (!acpi_check_handle(asus->handle, METHOD_WLAN, NULL) &&
asus->wled_type == TYPE_RFKILL)
result = asus_rfkill_setup(asus, &asus->wlan, "asus-wlan" ,
WL_RSTS, RFKILL_TYPE_WLAN,
&asus_rfkill_ops);
if (result)
goto exit ;
if (!acpi_check_handle(asus->handle, METHOD_BLUETOOTH, NULL) &&
asus->bled_type == TYPE_RFKILL)
result = asus_rfkill_setup(asus, &asus->bluetooth,
"asus-bluetooth" , BT_RSTS,
RFKILL_TYPE_BLUETOOTH,
&asus_rfkill_ops);
if (result)
goto exit ;
if (!acpi_check_handle(asus->handle, METHOD_WWAN, NULL))
result = asus_rfkill_setup(asus, &asus->wwan, "asus-wwan" ,
WW_RSTS, RFKILL_TYPE_WWAN,
&asus_rfkill_ops);
if (result)
goto exit ;
if (!acpi_check_handle(asus->handle, METHOD_WIMAX, NULL))
result = asus_rfkill_setup(asus, &asus->wimax, "asus-wimax" ,
WM_RSTS, RFKILL_TYPE_WIMAX,
&asus_rfkill_ops);
if (result)
goto exit ;
exit :
if (result)
asus_rfkill_exit(asus);
return result;
}
static int pega_rfkill_set(void *data, bool blocked)
{
struct asus_rfkill *rfk = data;
int ret = asus_pega_lucid_set(rfk->asus, rfk->control_id, !blocked);
return ret;
}
static const struct rfkill_ops pega_rfkill_ops = {
.set_block = pega_rfkill_set,
};
static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
const char *name, int controlid, int rfkill_type)
{
return asus_rfkill_setup(asus, rfk, name, controlid, rfkill_type,
&pega_rfkill_ops);
}
static int pega_rfkill_init(struct asus_laptop *asus)
{
int ret = 0 ;
if (!asus->is_pega_lucid)
return -ENODEV;
ret = pega_rfkill_setup(asus, &asus->wlan, "pega-wlan" ,
PEGA_WLAN, RFKILL_TYPE_WLAN);
if (ret)
goto exit ;
ret = pega_rfkill_setup(asus, &asus->bluetooth, "pega-bt" ,
PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH);
if (ret)
goto exit ;
ret = pega_rfkill_setup(asus, &asus->wwan, "pega-wwan" ,
PEGA_WWAN, RFKILL_TYPE_WWAN);
exit :
if (ret)
asus_rfkill_exit(asus);
return ret;
}
/*
* Input device ( i . e . hotkeys )
*/
static void asus_input_notify(struct asus_laptop *asus, int event)
{
if (!asus->inputdev)
return ;
if (!sparse_keymap_report_event(asus->inputdev, event, 1 , true ))
pr_info("Unknown key %x pressed\n" , event);
}
static int asus_input_init(struct asus_laptop *asus)
{
struct input_dev *input;
int error;
input = input_allocate_device();
if (!input)
return -ENOMEM;
input->name = "Asus Laptop extra buttons" ;
input->phys = ASUS_LAPTOP_FILE "/input0" ;
input->id.bustype = BUS_HOST;
input->dev.parent = &asus->platform_device->dev;
error = sparse_keymap_setup(input, asus_keymap, NULL);
if (error) {
pr_err("Unable to setup input device keymap\n" );
goto err_free_dev;
}
error = input_register_device(input);
if (error) {
pr_warn("Unable to register input device\n" );
goto err_free_dev;
}
asus->inputdev = input;
return 0 ;
err_free_dev:
input_free_device(input);
return error;
}
static void asus_input_exit(struct asus_laptop *asus)
{
if (asus->inputdev)
input_unregister_device(asus->inputdev);
asus->inputdev = NULL;
}
/*
* ACPI driver
*/
static void asus_acpi_notify(struct acpi_device *device, u32 event)
{
struct asus_laptop *asus = acpi_driver_data(device);
u16 count;
/* TODO Find a better way to handle events count. */
count = asus->event_count[event % 128 ]++;
acpi_bus_generate_netlink_event(asus->device->pnp.device_class,
dev_name(&asus->device->dev), event,
count);
if (event >= ATKD_BRNUP_MIN && event <= ATKD_BRNUP_MAX)
event = ATKD_BRNUP;
else if (event >= ATKD_BRNDOWN_MIN &&
event <= ATKD_BRNDOWN_MAX)
event = ATKD_BRNDOWN;
/* Brightness events are special */
if (event == ATKD_BRNDOWN || event == ATKD_BRNUP) {
if (asus->backlight_device != NULL) {
/* Update the backlight device. */
asus_backlight_notify(asus);
return ;
}
}
/* Accelerometer "coarse orientation change" event */
if (asus->pega_accel_poll && event == 0 xEA) {
kobject_uevent(&asus->pega_accel_poll->dev.kobj, KOBJ_CHANGE);
return ;
}
asus_input_notify(asus, event);
}
static struct attribute *asus_attributes[] = {
&dev_attr_infos.attr,
&dev_attr_wlan.attr,
&dev_attr_bluetooth.attr,
&dev_attr_wimax.attr,
&dev_attr_wwan.attr,
&dev_attr_display.attr,
&dev_attr_ledd.attr,
&dev_attr_ls_value.attr,
&dev_attr_ls_level.attr,
&dev_attr_ls_switch.attr,
&dev_attr_gps.attr,
NULL
};
static umode_t asus_sysfs_is_visible(struct kobject *kobj,
struct attribute *attr,
int idx)
{
struct device *dev = kobj_to_dev(kobj);
struct asus_laptop *asus = dev_get_drvdata(dev);
acpi_handle handle = asus->handle;
bool supported;
if (asus->is_pega_lucid) {
/* no ls_level interface on the Lucid */
if (attr == &dev_attr_ls_switch.attr)
supported = true ;
else if (attr == &dev_attr_ls_level.attr)
supported = false ;
else
goto normal;
return supported ? attr->mode : 0 ;
}
normal:
if (attr == &dev_attr_wlan.attr) {
supported = !acpi_check_handle(handle, METHOD_WLAN, NULL);
} else if (attr == &dev_attr_bluetooth.attr) {
supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL);
} else if (attr == &dev_attr_display.attr) {
supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL);
} else if (attr == &dev_attr_wimax.attr) {
supported =
!acpi_check_handle(asus->handle, METHOD_WIMAX, NULL);
} else if (attr == &dev_attr_wwan.attr) {
supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL);
} else if (attr == &dev_attr_ledd.attr) {
supported = !acpi_check_handle(handle, METHOD_LEDD, NULL);
} else if (attr == &dev_attr_ls_switch.attr ||
attr == &dev_attr_ls_level.attr) {
supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) &&
!acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL);
} else if (attr == &dev_attr_ls_value.attr) {
supported = asus->is_pega_lucid;
} else if (attr == &dev_attr_gps.attr) {
supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) &&
!acpi_check_handle(handle, METHOD_GPS_OFF, NULL) &&
!acpi_check_handle(handle, METHOD_GPS_STATUS, NULL);
} else {
supported = true ;
}
return supported ? attr->mode : 0 ;
}
static const struct attribute_group asus_attr_group = {
.is_visible = asus_sysfs_is_visible,
.attrs = asus_attributes,
};
static int asus_platform_init(struct asus_laptop *asus)
{
int result;
asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, PLATFORM_DEVID_NONE);
if (!asus->platform_device)
return -ENOMEM;
platform_set_drvdata(asus->platform_device, asus);
result = platform_device_add(asus->platform_device);
if (result)
goto fail_platform_device;
result = sysfs_create_group(&asus->platform_device->dev.kobj,
&asus_attr_group);
if (result)
goto fail_sysfs;
return 0 ;
fail_sysfs:
platform_device_del(asus->platform_device);
fail_platform_device:
platform_device_put(asus->platform_device);
return result;
}
static void asus_platform_exit(struct asus_laptop *asus)
{
sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group);
platform_device_unregister(asus->platform_device);
}
static struct platform_driver platform_driver = {
.driver = {
.name = ASUS_LAPTOP_FILE,
},
};
/*
* This function is used to initialize the context with right values . In this
* method , we can make all the detection we want , and modify the asus_laptop
* struct
*/
static int asus_laptop_get_info(struct asus_laptop *asus)
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *model = NULL;
unsigned long long bsts_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 .
*/
status = acpi_get_table(ACPI_SIG_DSDT, 1 , &asus->dsdt_info);
if (ACPI_FAILURE(status))
pr_warn("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_ret(asus->handle, "INIT" , 0 , &buffer)) {
pr_err("Hotkey initialization failed\n" );
return -ENODEV;
}
/* This needs to be called for some laptops to init properly */
status =
acpi_evaluate_integer(asus->handle, "BSTS" , NULL, &bsts_result);
if (ACPI_FAILURE(status))
pr_warn("Error calling BSTS\n" );
else if (bsts_result)
pr_notice("BSTS called, 0x%02x returned\n" ,
(uint) bsts_result);
/* This too ... */
if (write_acpi_int(asus->handle, "CWAP" , wapf))
pr_err("Error calling CWAP(%d)\n" , wapf);
/*
* 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 ;
}
}
asus->name = kstrdup(string, GFP_KERNEL);
if (!asus->name) {
kfree(buffer.pointer);
return -ENOMEM;
}
if (string)
pr_notice(" %s model detected\n" , string);
if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL))
asus->have_rsts = true ;
kfree(model);
return AE_OK;
}
static int asus_acpi_init(struct asus_laptop *asus)
{
int result = 0 ;
result = acpi_bus_get_status(asus->device);
if (result)
return result;
if (!asus->device->status.present) {
pr_err("Hotkey device not present, aborting\n" );
return -ENODEV;
}
result = asus_laptop_get_info(asus);
if (result)
return result;
if (!strcmp(bled_type, "led" ))
asus->bled_type = TYPE_LED;
else if (!strcmp(bled_type, "rfkill" ))
asus->bled_type = TYPE_RFKILL;
if (!strcmp(wled_type, "led" ))
asus->wled_type = TYPE_LED;
else if (!strcmp(wled_type, "rfkill" ))
asus->wled_type = TYPE_RFKILL;
if (bluetooth_status >= 0 )
asus_bluetooth_set(asus, !!bluetooth_status);
if (wlan_status >= 0 )
asus_wlan_set(asus, !!wlan_status);
if (wimax_status >= 0 )
asus_wimax_set(asus, !!wimax_status);
if (wwan_status >= 0 )
asus_wwan_set(asus, !!wwan_status);
/* Keyboard Backlight is on by default */
if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL))
asus_kled_set(asus, 1 );
/* LED display is off by default */
asus->ledd_status = 0 xFFF;
/* Set initial values of light sensor and level */
asus->light_switch = !!als_status;
asus->light_level = 5 ; /* level 5 for sensor sensitivity */
if (asus->is_pega_lucid) {
asus_als_switch(asus, asus->light_switch);
} else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) &&
!acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) {
asus_als_switch(asus, asus->light_switch);
asus_als_level(asus, asus->light_level);
}
return result;
}
static void asus_dmi_check(void )
{
const char *model;
model = dmi_get_system_info(DMI_PRODUCT_NAME);
if (!model)
return ;
/* On L1400B WLED control the sound card, don't mess with it ... */
if (strncmp(model, "L1400B" , 6 ) == 0 )
wlan_status = -1 ;
}
static bool asus_device_present;
static int asus_acpi_add(struct acpi_device *device)
{
struct asus_laptop *asus;
int result;
pr_notice("Asus Laptop Support version %s\n" ,
ASUS_LAPTOP_VERSION);
asus = kzalloc(sizeof (struct asus_laptop), GFP_KERNEL);
if (!asus)
return -ENOMEM;
asus->handle = device->handle;
strscpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME);
strscpy(acpi_device_class(device), ASUS_LAPTOP_CLASS);
device->driver_data = asus;
asus->device = device;
asus_dmi_check();
result = asus_acpi_init(asus);
if (result)
goto fail_platform;
/*
* Need platform type detection first , then the platform
* device . It is used as a parent for the sub - devices below .
*/
asus->is_pega_lucid = asus_check_pega_lucid(asus);
result = asus_platform_init(asus);
if (result)
goto fail_platform;
if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
result = asus_backlight_init(asus);
if (result)
goto fail_backlight;
}
result = asus_input_init(asus);
if (result)
goto fail_input;
result = asus_led_init(asus);
if (result)
goto fail_led;
result = asus_rfkill_init(asus);
if (result && result != -ENODEV)
goto fail_rfkill;
result = pega_accel_init(asus);
if (result && result != -ENODEV)
goto fail_pega_accel;
result = pega_rfkill_init(asus);
if (result && result != -ENODEV)
goto fail_pega_rfkill;
asus_device_present = true ;
return 0 ;
fail_pega_rfkill:
pega_accel_exit(asus);
fail_pega_accel:
asus_rfkill_exit(asus);
fail_rfkill:
asus_led_exit(asus);
fail_led:
asus_input_exit(asus);
fail_input:
asus_backlight_exit(asus);
fail_backlight:
asus_platform_exit(asus);
fail_platform:
kfree(asus);
return result;
}
static void asus_acpi_remove(struct acpi_device *device)
{
struct asus_laptop *asus = acpi_driver_data(device);
asus_backlight_exit(asus);
asus_rfkill_exit(asus);
asus_led_exit(asus);
asus_input_exit(asus);
pega_accel_exit(asus);
asus_platform_exit(asus);
kfree(asus->name);
kfree(asus);
}
static const struct acpi_device_id asus_device_ids[] = {
{"ATK0100" , 0 },
{"ATK0101" , 0 },
{"" , 0 },
};
MODULE_DEVICE_TABLE(acpi, asus_device_ids);
static struct acpi_driver asus_acpi_driver = {
.name = ASUS_LAPTOP_NAME,
.class = ASUS_LAPTOP_CLASS,
.ids = asus_device_ids,
.flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
.ops = {
.add = asus_acpi_add,
.remove = asus_acpi_remove,
.notify = asus_acpi_notify,
},
};
static int __init asus_laptop_init(void )
{
int result;
result = platform_driver_register(&platform_driver);
if (result < 0 )
return result;
result = acpi_bus_register_driver(&asus_acpi_driver);
if (result < 0 )
goto fail_acpi_driver;
if (!asus_device_present) {
result = -ENODEV;
goto fail_no_device;
}
return 0 ;
fail_no_device:
acpi_bus_unregister_driver(&asus_acpi_driver);
fail_acpi_driver:
platform_driver_unregister(&platform_driver);
return result;
}
static void __exit asus_laptop_exit(void )
{
acpi_bus_unregister_driver(&asus_acpi_driver);
platform_driver_unregister(&platform_driver);
}
module_init(asus_laptop_init);
module_exit(asus_laptop_exit);
Messung V0.5 in Prozent C=94 H=94 G=93
¤ Dauer der Verarbeitung: 0.44 Sekunden
(vorverarbeitet am 2026-09-28)
¤
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