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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: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
hifive-unleashed-5.1
Nikolai Kondrashov 2012-03-20 16:01:32 +02:00 committed by Jiri Kosina
parent d464c92b52
commit b73b2da035
1 changed files with 22 additions and 3 deletions
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25
drivers/hid/hid-input.c
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@ -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 */