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asus-laptop: add gps rfkill

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The rfkill subsystem will enable gps by default.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
This commit is contained in:
Corentin Chary 2010-01-25 23:29:24 +01:00
parent 47ee0e9952
commit 18e1311ee7
2 changed files with 59 additions and 7 deletions
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1
drivers/platform/x86/Kconfig
View File

@ -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

65
drivers/platform/x86/asus-laptop.c
View File

@ -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);