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Commit b73b2da0 authored by Nikolai Kondrashov's avatar Nikolai Kondrashov Committed by Jiri Kosina
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HID: hid-input: Add digitizer tilt usage support 



Add digitizer X Tilt and Y Tilt usage support along with resolution calculation.

Signed-off-by: default avatarNikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent d464c92b

drivers/hid/hid-input.c

+22 −3
Original line number Diff line number Diff line
@@ -225,7 +225,10 @@ static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code) 
	 * Verify and convert units.

	 * See HID specification v1.11 6.2.2.7 Global Items for unit decoding

	 */

	if (code == ABS_X || code == ABS_Y || code == ABS_Z) {

	switch (code) {

	case ABS_X:

	case ABS_Y:

	case ABS_Z:

		if (field->unit == 0x11) {		/* If centimeters */

			/* Convert to millimeters */

			unit_exponent += 1;
@@ -239,7 +242,13 @@ static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code) 
		} else {

			return 0;

		}

	} else if (code == ABS_RX || code == ABS_RY || code == ABS_RZ) {

		break;



	case ABS_RX:

	case ABS_RY:

	case ABS_RZ:

	case ABS_TILT_X:

	case ABS_TILT_Y:

		if (field->unit == 0x14) {		/* If degrees */

			/* Convert to radians */

			prev = logical_extents;
@@ -250,7 +259,9 @@ static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code) 
		} else if (field->unit != 0x12) {	/* If not radians */

			return 0;

		}

	} else {

		break;



	default:

		return 0;

	}
@@ -623,6 +634,14 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel 
			map_key_clear(BTN_TOOL_RUBBER);

			break;



		case 0x3d: /* X Tilt */

			map_abs_clear(ABS_TILT_X);

			break;



		case 0x3e: /* Y Tilt */

			map_abs_clear(ABS_TILT_Y);

			break;



		case 0x33: /* Touch */

		case 0x42: /* TipSwitch */

		case 0x43: /* TipSwitch2 */