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Commit 18e1311e authored by Corentin Chary's avatar Corentin Chary
Browse files

asus-laptop: add gps rfkill 



The rfkill subsystem will enable gps by default.

Signed-off-by: default avatarCorentin Chary <corentincj@iksaif.net>
parent 47ee0e99

drivers/platform/x86/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -59,6 +59,7 @@ config ASUS_LAPTOP 
	select NEW_LEDS

	select BACKLIGHT_CLASS_DEVICE

	depends on INPUT

	depends on RFKILL || RFKILL = n

	select INPUT_SPARSEKMAP

	---help---

	  This is the new Linux driver for Asus laptops. It may also support some

drivers/platform/x86/asus-laptop.c

+58 −7
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ 
#include <asm/uaccess.h>

#include <linux/input.h>

#include <linux/input/sparse-keymap.h>

#include <linux/rfkill.h>



#define ASUS_LAPTOP_VERSION	"0.42"
@@ -238,6 +239,8 @@ struct asus_laptop { 
	bool have_rsts;

	int lcd_state;



	struct rfkill *gps_rfkill;



	acpi_handle handle;	/* the handle of the hotk device */

	u32 ledd_status;	/* status of the LED display */

	u8 light_level;		/* light sensor level */
@@ -1006,7 +1009,6 @@ static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr, 


/*

 * GPS

 * TODO: use rfkill

 */

static int asus_gps_status(struct asus_laptop *asus)

{
@@ -1052,9 +1054,57 @@ static ssize_t store_gps(struct device *dev, struct device_attribute *attr, 
	ret = asus_gps_switch(asus, !!value);

	if (ret)

		return ret;

	rfkill_set_sw_state(asus->gps_rfkill, !value);

	return rv;

}



/*

 * rfkill

 */

static int asus_gps_rfkill_set(void *data, bool blocked)

{

	acpi_handle handle = data;



	return asus_gps_switch(handle, !blocked);

}



static const struct rfkill_ops asus_gps_rfkill_ops = {

	.set_block = asus_gps_rfkill_set,

};



static void asus_rfkill_exit(struct asus_laptop *asus)

{

	if (asus->gps_rfkill) {

		rfkill_unregister(asus->gps_rfkill);

		rfkill_destroy(asus->gps_rfkill);

		asus->gps_rfkill = NULL;

	}

}



static int asus_rfkill_init(struct asus_laptop *asus)

{

	int result;



	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))

		return 0;



	asus->gps_rfkill = rfkill_alloc("asus-gps", &asus->platform_device->dev,

					RFKILL_TYPE_GPS,

					&asus_gps_rfkill_ops, NULL);

	if (!asus->gps_rfkill)

		return -EINVAL;



	result = rfkill_register(asus->gps_rfkill);

	if (result) {

		rfkill_destroy(asus->gps_rfkill);

		asus->gps_rfkill = NULL;

	}



	return result;

}



/*

 * Input device (i.e. hotkeys)

 */
@@ -1416,12 +1466,6 @@ static int __devinit asus_acpi_init(struct asus_laptop *asus) 
		asus_als_level(asus, asus->light_level);

	}



	/* GPS is on by default */

	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))

		asus_gps_switch(asus, 1);



	asus->lcd_state = 1; /* LCD should be on when the module load */

	return result;

}
@@ -1469,9 +1513,15 @@ static int __devinit asus_acpi_add(struct acpi_device *device) 
	if (result)

		goto fail_led;



	result = asus_rfkill_init(asus);

	if (result)

		goto fail_rfkill;



	asus_device_present = true;

	return 0;



fail_rfkill:

	asus_led_exit(asus);

fail_led:

	asus_input_exit(asus);

fail_input:
@@ -1490,6 +1540,7 @@ static int asus_acpi_remove(struct acpi_device *device, int type) 
	struct asus_laptop *asus = acpi_driver_data(device);



	asus_backlight_exit(asus);

	asus_rfkill_exit(asus);

	asus_led_exit(asus);

	asus_input_exit(asus);

	asus_platform_exit(asus);