platform/x86: asus-wmi: Add support for SW_TABLET_MODE on UX360

[linux-2.6-microblaze.git] / drivers / platform / x86 / asus-wmi.c

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 39e1a63..fa884c4 100644 (file)
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -63,6 +63,7 @@ MODULE_LICENSE("GPL");
 #define NOTIFY_KBD_BRTTOGGLE           0xc7
 #define NOTIFY_KBD_FBM                 0x99
 #define NOTIFY_KBD_TTP                 0xae
+#define NOTIFY_LID_FLIP                        0xfa
 
 #define ASUS_WMI_FNLOCK_BIOS_DISABLED  BIT(0)
 
@@ -375,6 +376,20 @@ static int asus_wmi_input_init(struct asus_wmi *asus)
                }
        }
 
+       if (asus->driver->quirks->use_lid_flip_devid) {
+               result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_LID_FLIP);
+               if (result < 0)
+                       asus->driver->quirks->use_lid_flip_devid = 0;
+               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("This device has lid_flip quirk but got ENODEV checking it. This is a bug.");
+               } else {
+                       pr_err("Error checking for lid-flip: %d\n", result);
+               }
+       }
+
        err = input_register_device(asus->inputdev);
        if (err)
                goto err_free_dev;
@@ -394,6 +409,18 @@ static void asus_wmi_input_exit(struct asus_wmi *asus)
        asus->inputdev = NULL;
 }
 
+/* Tablet mode ****************************************************************/
+
+static void lid_flip_tablet_mode_get_state(struct asus_wmi *asus)
+{
+       int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_LID_FLIP);
+
+       if (result >= 0) {
+               input_report_switch(asus->inputdev, SW_TABLET_MODE, result);
+               input_sync(asus->inputdev);
+       }
+}
+
 /* Battery ********************************************************************/
 
 /* The battery maximum charging percentage */
@@ -2128,6 +2155,11 @@ static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
                return;
        }
 
+       if (asus->driver->quirks->use_lid_flip_devid && code == NOTIFY_LID_FLIP) {
+               lid_flip_tablet_mode_get_state(asus);
+               return;
+       }
+
        if (asus->fan_boost_mode_available && code == NOTIFY_KBD_FBM) {
                fan_boost_mode_switch_next(asus);
                return;
@@ -2719,6 +2751,10 @@ static int asus_hotk_resume(struct device *device)
 
        if (asus_wmi_has_fnlock_key(asus))
                asus_wmi_fnlock_update(asus);
+
+       if (asus->driver->quirks->use_lid_flip_devid)
+               lid_flip_tablet_mode_get_state(asus);
+
        return 0;
 }
 
@@ -2757,6 +2793,10 @@ static int asus_hotk_restore(struct device *device)
 
        if (asus_wmi_has_fnlock_key(asus))
                asus_wmi_fnlock_update(asus);
+
+       if (asus->driver->quirks->use_lid_flip_devid)
+               lid_flip_tablet_mode_get_state(asus);
+
        return 0;
 }