mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-03 17:40:04 +00:00
eeepc-wmi: add camera and card reader support
Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
parent
aafa719dcd
commit
9e1565bc39
2 changed files with 102 additions and 1 deletions
|
@ -8,3 +8,17 @@ Description:
|
|||
* 0 -> Super Performance Mode
|
||||
* 1 -> High Performance Mode
|
||||
* 2 -> Power Saving Mode
|
||||
|
||||
What: /sys/devices/platform/eeepc-wmi/camera
|
||||
Date: Jan 2010
|
||||
KernelVersion: 2.6.39
|
||||
Contact: "Corentin Chary" <corentincj@iksaif.net>
|
||||
Description:
|
||||
Control the camera. 1 means on, 0 means off.
|
||||
|
||||
What: /sys/devices/platform/eeepc-wmi/cardr
|
||||
Date: Jan 2010
|
||||
KernelVersion: 2.6.39
|
||||
Contact: "Corentin Chary" <corentincj@iksaif.net>
|
||||
Description:
|
||||
Control the card reader. 1 means on, 0 means off.
|
||||
|
|
|
@ -73,6 +73,8 @@ MODULE_ALIAS("wmi:"EEEPC_WMI_MGMT_GUID);
|
|||
#define EEEPC_WMI_DEVID_BLUETOOTH 0x00010013
|
||||
#define EEEPC_WMI_DEVID_WWAN3G 0x00010019
|
||||
#define EEEPC_WMI_DEVID_BACKLIGHT 0x00050012
|
||||
#define EEEPC_WMI_DEVID_CAMERA 0x00060013
|
||||
#define EEEPC_WMI_DEVID_CARDREADER 0x00080013
|
||||
#define EEEPC_WMI_DEVID_TPDLED 0x00100011
|
||||
|
||||
#define EEEPC_WMI_DSTS_STATUS_BIT 0x00000001
|
||||
|
@ -879,6 +881,70 @@ static void eeepc_wmi_notify(u32 value, void *context)
|
|||
kfree(obj);
|
||||
}
|
||||
|
||||
/*
|
||||
* Sys helpers
|
||||
*/
|
||||
static int parse_arg(const char *buf, unsigned long count, int *val)
|
||||
{
|
||||
if (!count)
|
||||
return 0;
|
||||
if (sscanf(buf, "%i", val) != 1)
|
||||
return -EINVAL;
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t store_sys_wmi(int devid, const char *buf, size_t count)
|
||||
{
|
||||
acpi_status status;
|
||||
u32 retval;
|
||||
int rv, value;
|
||||
|
||||
value = eeepc_wmi_get_devstate_simple(devid);
|
||||
if (value == -ENODEV) /* Check device presence */
|
||||
return value;
|
||||
|
||||
rv = parse_arg(buf, count, &value);
|
||||
status = eeepc_wmi_set_devstate(devid, value, &retval);
|
||||
|
||||
if (ACPI_FAILURE(status))
|
||||
return -EIO;
|
||||
return rv;
|
||||
}
|
||||
|
||||
static ssize_t show_sys_wmi(int devid, char *buf)
|
||||
{
|
||||
int value = eeepc_wmi_get_devstate_simple(devid);
|
||||
|
||||
if (value < 0)
|
||||
return value;
|
||||
|
||||
return sprintf(buf, "%d\n", value);
|
||||
}
|
||||
|
||||
#define EEEPC_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
|
||||
static ssize_t show_##_name(struct device *dev, \
|
||||
struct device_attribute *attr, \
|
||||
char *buf) \
|
||||
{ \
|
||||
return show_sys_wmi(_cm, buf); \
|
||||
} \
|
||||
static ssize_t store_##_name(struct device *dev, \
|
||||
struct device_attribute *attr, \
|
||||
const char *buf, size_t count) \
|
||||
{ \
|
||||
return store_sys_wmi(_cm, buf, count); \
|
||||
} \
|
||||
static struct device_attribute dev_attr_##_name = { \
|
||||
.attr = { \
|
||||
.name = __stringify(_name), \
|
||||
.mode = _mode }, \
|
||||
.show = show_##_name, \
|
||||
.store = store_##_name, \
|
||||
}
|
||||
|
||||
EEEPC_WMI_CREATE_DEVICE_ATTR(camera, 0644, EEEPC_WMI_DEVID_CAMERA);
|
||||
EEEPC_WMI_CREATE_DEVICE_ATTR(cardr, 0644, EEEPC_WMI_DEVID_CARDREADER);
|
||||
|
||||
static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
|
@ -904,11 +970,32 @@ static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv);
|
|||
|
||||
static struct attribute *platform_attributes[] = {
|
||||
&dev_attr_cpufv.attr,
|
||||
&dev_attr_camera.attr,
|
||||
&dev_attr_cardr.attr,
|
||||
NULL
|
||||
};
|
||||
|
||||
static mode_t eeepc_sysfs_is_visible(struct kobject *kobj,
|
||||
struct attribute *attr,
|
||||
int idx)
|
||||
{
|
||||
bool supported = true;
|
||||
int devid = -1;
|
||||
|
||||
if (attr == &dev_attr_camera.attr)
|
||||
devid = EEEPC_WMI_DEVID_CAMERA;
|
||||
else if (attr == &dev_attr_cardr.attr)
|
||||
devid = EEEPC_WMI_DEVID_CARDREADER;
|
||||
|
||||
if (devid != -1)
|
||||
supported = eeepc_wmi_get_devstate_simple(devid) != -ENODEV;
|
||||
|
||||
return supported ? attr->mode : 0;
|
||||
}
|
||||
|
||||
static struct attribute_group platform_attribute_group = {
|
||||
.attrs = platform_attributes
|
||||
.is_visible = eeepc_sysfs_is_visible,
|
||||
.attrs = platform_attributes
|
||||
};
|
||||
|
||||
static void eeepc_wmi_sysfs_exit(struct platform_device *device)
|
||||
|
|
Loading…
Reference in a new issue