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Subject[PATCH 5/8] ideapad: use EC command to control camera
Date
Signed-off-by: Ike Panhc <ike.pan@canonical.com>
---
drivers/platform/x86/ideapad_acpi.c | 16 +++++++++++-----
1 files changed, 11 insertions(+), 5 deletions(-)
diff --git a/drivers/platform/x86/ideapad_acpi.c b/drivers/platform/x86/ideapad_acpi.c
index 673b44d..a1fdb45 100644
--- a/drivers/platform/x86/ideapad_acpi.c
+++ b/drivers/platform/x86/ideapad_acpi.c
@@ -35,6 +35,7 @@
#define IDEAPAD_DEV_KILLSW 4

struct ideapad_private {
+ acpi_handle handle;
struct rfkill *rfk[5];
};

@@ -209,24 +210,28 @@ static ssize_t show_ideapad_cam(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- int state = ideapad_dev_get_state(IDEAPAD_DEV_CAMERA);
- if (state < 0)
- return state;
+ struct ideapad_private *priv = dev_get_drvdata(dev);
+ acpi_handle handle = priv->handle;
+ unsigned long result;

- return sprintf(buf, "%d\n", state);
+ if (read_ec_data(handle, 0x1D, &result))
+ return sprintf(buf, "-1\n");
+ return sprintf(buf, "%lu\n", result);
}

static ssize_t store_ideapad_cam(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
+ struct ideapad_private *priv = dev_get_drvdata(dev);
+ acpi_handle handle = priv->handle;
int ret, state;

if (!count)
return 0;
if (sscanf(buf, "%i", &state) != 1)
return -EINVAL;
- ret = ideapad_dev_set_state(IDEAPAD_DEV_CAMERA, !!state);
+ ret = write_ec_cmd(handle, 0x1E, state);
if (ret < 0)
return ret;
return count;
@@ -337,6 +342,7 @@ static int ideapad_acpi_add(struct acpi_device *adevice)
}
}

+ priv->handle = adevice->handle;
dev_set_drvdata(&adevice->dev, priv);
for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++) {
if (!devs_present[i])
--
1.7.0.4


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