Commit b0dbd97d authored by Hans de Goede's avatar Hans de Goede Committed by Andy Shevchenko
Browse files

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: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
parent fed5003d

drivers/platform/x86/asus-wmi.c

+22 −2
Original line number Diff line number Diff line
@@ -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;

include/linux/platform_data/x86/asus-wmi.h

+3 −0
Original line number Diff line number Diff line
@@ -85,6 +85,9 @@ 
/* Maximum charging percentage */

#define ASUS_WMI_DEVID_RSOC		0x00120057



/* Keyboard dock */

#define ASUS_WMI_DEVID_KBD_DOCK		0x00120063



/* DSTS masks */

#define ASUS_WMI_DSTS_STATUS_BIT	0x00000001

#define ASUS_WMI_DSTS_UNKNOWN_BIT	0x00000002

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