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| author |   Chase Douglas <chase.douglas@canonical.com> | 2010-07-05 09:57:52 -0400 |
|---|---|---|
| committer |   Jiri Kosina <jkosina@suse.cz> | 2010-07-11 23:01:51 +0200 |
| commit | e3612e8669b8c15278058f8dd52e3dc6e7d26710 (patch) | |
| tree | 387c8259006adbd4865046ef812613f714d3984f /drivers/hid | |
| parent | HID: magicmouse: enable horizontal scrolling (diff) | |
| download | linux-dev-e3612e8669b8c15278058f8dd52e3dc6e7d26710.tar.xz linux-dev-e3612e8669b8c15278058f8dd52e3dc6e7d26710.zip | |
HID: magicmouse: report last touch up
The evdev multitouch protocol requires that a last MT sync event must be
sent after all touches are up. This change adds the last MT sync event
to the hid-magicmouse driver.
Also, don't send events when a touch leaves.
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Acked-by: Michael Poole <mdpoole@troilus.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-magicmouse.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index 0b89c1cf9ec4..ee7878785955 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -98,6 +98,7 @@ struct magicmouse_sc { short scroll_x; short scroll_y; u8 size; + u8 down; } touches[16]; int tracking_ids[16]; }; @@ -170,6 +171,7 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda int id = (misc >> 6) & 15; int x = x_y << 12 >> 20; int y = -(x_y >> 20); + int down = (tdata[7] & TOUCH_STATE_MASK) != TOUCH_STATE_NONE; /* Store tracking ID and other fields. */ msc->tracking_ids[raw_id] = id; @@ -221,9 +223,11 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda } /* Generate the input events for this touch. */ - if (report_touches) { + if (report_touches && down) { int orientation = (misc >> 10) - 32; + msc->touches[id].down = 1; + input_report_abs(input, ABS_MT_TRACKING_ID, id); input_report_abs(input, ABS_MT_TOUCH_MAJOR, tdata[3]); input_report_abs(input, ABS_MT_TOUCH_MINOR, tdata[4]); @@ -243,7 +247,7 @@ static int magicmouse_raw_event(struct hid_device *hdev, { struct magicmouse_sc *msc = hid_get_drvdata(hdev); struct input_dev *input = msc->input; - int x, y, ts, ii, clicks; + int x, y, ts, ii, clicks, last_up; switch (data[0]) { case 0x10: @@ -263,6 +267,20 @@ static int magicmouse_raw_event(struct hid_device *hdev, msc->ntouches = (size - 6) / 8; for (ii = 0; ii < msc->ntouches; ii++) magicmouse_emit_touch(msc, ii, data + ii * 8 + 6); + + if (report_touches) { + last_up = 1; + for (ii = 0; ii < ARRAY_SIZE(msc->touches); ii++) { + if (msc->touches[ii].down) { + last_up = 0; + msc->touches[ii].down = 0; + } + } + if (last_up) { + input_mt_sync(input); + } + } + /* When emulating three-button mode, it is important * to have the current touch information before * generating a click event. |