diff options
| author | Chase Douglas <chase.douglas@canonical.com> | 2010-06-21 05:32:31 +0400 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-06-24 12:49:58 +0400 |
| commit | c04266889b591165bdea396b20313bebb83c0fd6 (patch) | |
| tree | 5b240074d9126960722952408f9ed8ed4f562ede /drivers/hid/hid-magicmouse.c | |
| parent | 0b778e76c1e7ccf49f8980b594e72f984095fd26 (diff) | |
| download | linux-c04266889b591165bdea396b20313bebb83c0fd6.tar.xz | |
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>
Diffstat (limited to 'drivers/hid/hid-magicmouse.c')
| -rw-r--r-- | drivers/hid/hid-magicmouse.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index fe0c760d7e6e..0b89c1cf9ec4 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -95,6 +95,7 @@ struct magicmouse_sc { struct { short x; short y; + short scroll_x; short scroll_y; u8 size; } touches[16]; @@ -181,11 +182,13 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda */ if (emulate_scroll_wheel) { unsigned long now = jiffies; - int step = msc->touches[id].scroll_y - y; + int step_x = msc->touches[id].scroll_x - x; + int step_y = msc->touches[id].scroll_y - y; /* Calculate and apply the scroll motion. */ switch (tdata[7] & TOUCH_STATE_MASK) { case TOUCH_STATE_START: + msc->touches[id].scroll_x = x; msc->touches[id].scroll_y = y; /* Reset acceleration after half a second. */ @@ -198,12 +201,20 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda break; case TOUCH_STATE_DRAG: - step /= (64 - (int)scroll_speed) * msc->scroll_accel; - if (step != 0) { - msc->touches[id].scroll_y -= step * + step_x /= (64 - (int)scroll_speed) * msc->scroll_accel; + if (step_x != 0) { + msc->touches[id].scroll_x -= step_x * (64 - scroll_speed) * msc->scroll_accel; msc->scroll_jiffies = now; - input_report_rel(input, REL_WHEEL, step); + input_report_rel(input, REL_HWHEEL, -step_x); + } + + step_y /= (64 - (int)scroll_speed) * msc->scroll_accel; + if (step_y != 0) { + msc->touches[id].scroll_y -= step_y * + (64 - scroll_speed) * msc->scroll_accel; + msc->scroll_jiffies = now; + input_report_rel(input, REL_WHEEL, step_y); } break; } @@ -318,8 +329,10 @@ static void magicmouse_setup_input(struct input_dev *input, struct hid_device *h __set_bit(EV_REL, input->evbit); __set_bit(REL_X, input->relbit); __set_bit(REL_Y, input->relbit); - if (emulate_scroll_wheel) + if (emulate_scroll_wheel) { __set_bit(REL_WHEEL, input->relbit); + __set_bit(REL_HWHEEL, input->relbit); + } if (report_touches) { __set_bit(EV_ABS, input->evbit); |