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authorAceLan Kao <acelan.kao@canonical.com>2012-06-13 09:32:07 +0200
committerMatthew Garrett <mjg@redhat.com>2012-07-28 00:11:49 -0400
commitc0b91b6d5226247fa4fe894eb592bcc56bc7e9fd (patch)
treebdd3cde2c30bdf54a9bd9d287cdd1eb1f2a16925
parent272c77d55672ef92eda9d5e24a5a7ac62df9c431 (diff)
downloadop-kernel-dev-c0b91b6d5226247fa4fe894eb592bcc56bc7e9fd.zip
op-kernel-dev-c0b91b6d5226247fa4fe894eb592bcc56bc7e9fd.tar.gz
asus-wmi: enable resume on lid open
According to the ASUS WMI spec., to enable resume on lid open should use the device ID(0x00120032), but it doesn't work indeed. After discussing with ASUS' BIOS engineer, they say wake on lid open doesn't have a uniq device ID(0x00120032) in the BIOS. It shares the same device ID with deep S3(0x00120031), and the deep S3(resume on lid open) is disable by default. Adding this option in asus wmi sysfs /sys/devices/platform/<platform>/lid_resume so that userspace apps can enable/disable this feature by themselves. Signed-off-by: AceLan Kao <acelan.kao@canonical.com> Signed-off-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
-rw-r--r--Documentation/ABI/testing/sysfs-platform-asus-wmi7
-rw-r--r--drivers/platform/x86/asus-wmi.c7
2 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 2e7df91..019e1e2 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -29,3 +29,10 @@ KernelVersion: 2.6.39
Contact: "Corentin Chary" <corentincj@iksaif.net>
Description:
Control the card touchpad. 1 means on, 0 means off.
+
+What: /sys/devices/platform/<platform>/lid_resume
+Date: May 2012
+KernelVersion: 3.5
+Contact: "AceLan Kao" <acelan.kao@canonical.com>
+Description:
+ Resume on lid open. 1 means on, 0 means off.
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 486f836..c7a36f6 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -139,6 +139,9 @@ MODULE_LICENSE("GPL");
/* Power */
#define ASUS_WMI_DEVID_PROCESSOR_STATE 0x00120012
+/* Deep S3 / Resume on LID open */
+#define ASUS_WMI_DEVID_LID_RESUME 0x00120031
+
/* DSTS masks */
#define ASUS_WMI_DSTS_STATUS_BIT 0x00000001
#define ASUS_WMI_DSTS_UNKNOWN_BIT 0x00000002
@@ -1368,6 +1371,7 @@ static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
+ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
@@ -1393,6 +1397,7 @@ static struct attribute *platform_attributes[] = {
&dev_attr_camera.attr,
&dev_attr_cardr.attr,
&dev_attr_touchpad.attr,
+ &dev_attr_lid_resume.attr,
NULL
};
@@ -1411,6 +1416,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
devid = ASUS_WMI_DEVID_CARDREADER;
else if (attr == &dev_attr_touchpad.attr)
devid = ASUS_WMI_DEVID_TOUCHPAD;
+ else if (attr == &dev_attr_lid_resume.attr)
+ devid = ASUS_WMI_DEVID_LID_RESUME;
if (devid != -1)
ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
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