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authorHans de Goede <hdegoede@redhat.com>2020-05-10 14:24:31 +0200
committerAndy Shevchenko <andriy.shevchenko@linux.intel.com>2020-05-12 17:27:12 +0300
commitb0dbd97de1f1fd6b3c9a7bb8f7c795bba7e169d8 (patch)
treee0cf80d80d714b266744bd42e7535a502645a94b /drivers/platform
parentfed5003d805c5ea06e146ed8df2b319496765454 (diff)
platform/x86: asus-wmi: Add support for SW_TABLET_MODE
On Asus 2-in-1s with a detachable keyboard the Asus WMI interface reports if the tablet is attached to the keyboard or not. Report if the 2-in-1 is in tablet or clamshell mode to userspace by reporting SW_TABLET_MODE events to userspace. This has been tested on a T100TA, T100CHI, T100HA and T200TA. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/asus-wmi.c24
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 91d0c8be63a5..a97aba2ba467 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -57,6 +57,7 @@ MODULE_LICENSE("GPL");
#define NOTIFY_BRNDOWN_MIN 0x20
#define NOTIFY_BRNDOWN_MAX 0x2e
#define NOTIFY_FNLOCK_TOGGLE 0x4e
+#define NOTIFY_KBD_DOCK_CHANGE 0x75
#define NOTIFY_KBD_BRTUP 0xc4
#define NOTIFY_KBD_BRTDWN 0xc5
#define NOTIFY_KBD_BRTTOGGLE 0xc7
@@ -346,7 +347,7 @@ static bool asus_wmi_dev_is_present(struct asus_wmi *asus, u32 dev_id)
static int asus_wmi_input_init(struct asus_wmi *asus)
{
- int err;
+ int err, result;
asus->inputdev = input_allocate_device();
if (!asus->inputdev)
@@ -362,6 +363,14 @@ static int asus_wmi_input_init(struct asus_wmi *asus)
if (err)
goto err_free_dev;
+ result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_KBD_DOCK);
+ if (result >= 0) {
+ input_set_capability(asus->inputdev, EV_SW, SW_TABLET_MODE);
+ input_report_switch(asus->inputdev, SW_TABLET_MODE, !result);
+ } else if (result != -ENODEV) {
+ pr_err("Error checking for keyboard-dock: %d\n", result);
+ }
+
err = input_register_device(asus->inputdev);
if (err)
goto err_free_dev;
@@ -2055,9 +2064,9 @@ static int asus_wmi_get_event_code(u32 value)
static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
{
- int orig_code;
unsigned int key_value = 1;
bool autorelease = 1;
+ int result, orig_code;
orig_code = code;
@@ -2102,6 +2111,17 @@ static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
return;
}
+ if (code == NOTIFY_KBD_DOCK_CHANGE) {
+ result = asus_wmi_get_devstate_simple(asus,
+ ASUS_WMI_DEVID_KBD_DOCK);
+ if (result >= 0) {
+ input_report_switch(asus->inputdev, SW_TABLET_MODE,
+ !result);
+ input_sync(asus->inputdev);
+ }
+ return;
+ }
+
if (asus->fan_boost_mode_available && code == NOTIFY_KBD_FBM) {
fan_boost_mode_switch_next(asus);
return;