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HID: magicmouse: enable horizontal scrolling
Mimicks OS X behavior. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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0b778e76c1
commit
c04266889b
1 changed files with 19 additions and 6 deletions
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@ -95,6 +95,7 @@ struct magicmouse_sc {
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struct {
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short x;
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short y;
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short scroll_x;
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short scroll_y;
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u8 size;
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} touches[16];
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@ -181,11 +182,13 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda
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*/
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if (emulate_scroll_wheel) {
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unsigned long now = jiffies;
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int step = msc->touches[id].scroll_y - y;
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int step_x = msc->touches[id].scroll_x - x;
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int step_y = msc->touches[id].scroll_y - y;
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/* Calculate and apply the scroll motion. */
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switch (tdata[7] & TOUCH_STATE_MASK) {
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case TOUCH_STATE_START:
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msc->touches[id].scroll_x = x;
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msc->touches[id].scroll_y = y;
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/* Reset acceleration after half a second. */
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@ -198,12 +201,20 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda
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break;
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case TOUCH_STATE_DRAG:
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step /= (64 - (int)scroll_speed) * msc->scroll_accel;
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if (step != 0) {
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msc->touches[id].scroll_y -= step *
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step_x /= (64 - (int)scroll_speed) * msc->scroll_accel;
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if (step_x != 0) {
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msc->touches[id].scroll_x -= step_x *
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(64 - scroll_speed) * msc->scroll_accel;
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msc->scroll_jiffies = now;
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input_report_rel(input, REL_WHEEL, step);
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input_report_rel(input, REL_HWHEEL, -step_x);
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}
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step_y /= (64 - (int)scroll_speed) * msc->scroll_accel;
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if (step_y != 0) {
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msc->touches[id].scroll_y -= step_y *
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(64 - scroll_speed) * msc->scroll_accel;
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msc->scroll_jiffies = now;
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input_report_rel(input, REL_WHEEL, step_y);
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}
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break;
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}
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@ -318,8 +329,10 @@ static void magicmouse_setup_input(struct input_dev *input, struct hid_device *h
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__set_bit(EV_REL, input->evbit);
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__set_bit(REL_X, input->relbit);
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__set_bit(REL_Y, input->relbit);
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if (emulate_scroll_wheel)
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if (emulate_scroll_wheel) {
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__set_bit(REL_WHEEL, input->relbit);
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__set_bit(REL_HWHEEL, input->relbit);
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}
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if (report_touches) {
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__set_bit(EV_ABS, input->evbit);
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