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touchpad: add MT_TOOL-based palm detection

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If the touchpad driver tells us something is a palm, go with that.

https://bugs.freedesktop.org/show_bug.cgi?id=100243

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2017-04-03 13:58:42 +10:00
parent 7d1a047b7c
commit 9495713b05
3 changed files with 128 additions and 0 deletions
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41
src/evdev-mt-touchpad.c
View file

@ -341,6 +341,11 @@ tp_process_absolute(struct tp_dispatch *tp,
t->dirty = true;
tp->queued |= TOUCHPAD_EVENT_OTHERAXIS;
break;
case ABS_MT_TOOL_TYPE:
t->is_tool_palm = e->value == MT_TOOL_PALM;
t->dirty = true;
tp->queued |= TOUCHPAD_EVENT_OTHERAXIS;
break;
}
}
@ -622,6 +627,31 @@ tp_palm_detect_trackpoint_triggered(struct tp_dispatch *tp,
return false;
}
static bool
tp_palm_detect_tool_triggered(struct tp_dispatch *tp,
struct tp_touch *t,
uint64_t time)
{
if (!tp->palm.use_mt_tool)
return false;
if (t->palm.state != PALM_NONE &&
t->palm.state != PALM_TOOL_PALM)
return false;
if (t->palm.state == PALM_NONE &&
t->is_tool_palm)
t->palm.state = PALM_TOOL_PALM;
else if (t->palm.state == PALM_TOOL_PALM &&
!t->is_tool_palm)
t->palm.state = PALM_NONE;
if (t->palm.state == PALM_TOOL_PALM)
tp_stop_actions(tp, time);
return t->palm.state == PALM_TOOL_PALM;
}
static inline bool
tp_palm_detect_move_out_of_edge(struct tp_dispatch *tp,
struct tp_touch *t,
@ -732,6 +762,9 @@ tp_palm_detect(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
if (tp_palm_detect_trackpoint_triggered(tp, t, time))
goto out;
if (tp_palm_detect_tool_triggered(tp, t, time))
goto out;
if (tp_palm_detect_edge(tp, t, time))
goto out;
@ -750,6 +783,9 @@ out:
case PALM_TRACKPOINT:
palm_state = "trackpoint";
break;
case PALM_TOOL_PALM:
palm_state = "tool-palm";
break;
case PALM_NONE:
default:
abort();
@ -2267,6 +2303,11 @@ tp_init_palmdetect(struct tp_dispatch *tp,
tp->palm.monitor_trackpoint = true;
if (libevdev_has_event_code(device->evdev,
EV_ABS,
ABS_MT_TOOL_TYPE))
tp->palm.use_mt_tool = true;
tp_init_palmdetect_edge(tp, device);
}

4
src/evdev-mt-touchpad.h
View file

@ -66,6 +66,7 @@ enum touch_palm_state {
PALM_EDGE,
PALM_TYPING,
PALM_TRACKPOINT,
PALM_TOOL_PALM,
};
enum button_event {
@ -154,6 +155,7 @@ struct tp_touch {
struct device_coords point;
uint64_t millis;
int pressure;
bool is_tool_palm; /* MT_TOOL_PALM */
bool was_down; /* if distance == 0, false for pure hovering
touches */
@ -347,6 +349,8 @@ struct tp_dispatch {
uint64_t trackpoint_last_event_time;
uint32_t trackpoint_event_count;
bool monitor_trackpoint;
bool use_mt_tool;
} palm;
struct {

83
test/test-touchpad.c
View file

@ -1293,6 +1293,86 @@ START_TEST(touchpad_palm_detect_both_edges)
}
END_TEST
static inline bool
touchpad_has_tool_palm(struct litest_device *dev)
{
return libevdev_has_event_code(dev->evdev, EV_ABS, ABS_MT_TOOL_TYPE);
}
START_TEST(touchpad_palm_detect_tool_palm)
{
struct litest_device *dev = litest_current_device();
struct libinput *li = dev->libinput;
if (!touchpad_has_tool_palm(dev))
return;
litest_touch_down(dev, 0, 50, 50);
litest_touch_move_to(dev, 0, 50, 50, 70, 70, 10, 1);
litest_drain_events(li);
litest_event(dev, EV_ABS, ABS_MT_TOOL_TYPE, MT_TOOL_PALM);
litest_event(dev, EV_SYN, SYN_REPORT, 0);
litest_touch_move_to(dev, 0, 70, 70, 50, 40, 10, 1);
litest_touch_up(dev, 0);
litest_assert_empty_queue(li);
}
END_TEST
START_TEST(touchpad_palm_detect_tool_palm_on_off)
{
struct litest_device *dev = litest_current_device();
struct libinput *li = dev->libinput;
if (!touchpad_has_tool_palm(dev))
return;
litest_touch_down(dev, 0, 50, 50);
litest_touch_move_to(dev, 0, 50, 50, 70, 70, 10, 1);
litest_drain_events(li);
litest_event(dev, EV_ABS, ABS_MT_TOOL_TYPE, MT_TOOL_PALM);
litest_event(dev, EV_SYN, SYN_REPORT, 0);
litest_touch_move_to(dev, 0, 70, 70, 50, 40, 10, 1);
litest_assert_empty_queue(li);
litest_event(dev, EV_ABS, ABS_MT_TOOL_TYPE, MT_TOOL_FINGER);
litest_event(dev, EV_SYN, SYN_REPORT, 0);
litest_touch_move_to(dev, 0, 50, 40, 70, 70, 10, 1);
litest_touch_up(dev, 0);
litest_assert_only_typed_events(li, LIBINPUT_EVENT_POINTER_MOTION);
}
END_TEST
START_TEST(touchpad_palm_detect_tool_palm_tap)
{
struct litest_device *dev = litest_current_device();
struct libinput *li = dev->libinput;
if (!touchpad_has_tool_palm(dev))
return;
litest_enable_tap(dev->libinput_device);
litest_drain_events(li);
litest_push_event_frame(dev);
litest_event(dev, EV_ABS, ABS_MT_TOOL_TYPE, MT_TOOL_PALM);
litest_touch_down(dev, 0, 50, 50);
litest_pop_event_frame(dev);
libinput_dispatch(li);
litest_assert_empty_queue(li);
litest_touch_up(dev, 0);
libinput_dispatch(li);
litest_timeout_tap();
litest_assert_empty_queue(li);
}
END_TEST
START_TEST(touchpad_left_handed)
{
struct litest_device *dev = litest_current_device();
@ -4987,6 +5067,9 @@ litest_setup_tests_touchpad(void)
litest_add("touchpad:palm", touchpad_no_palm_detect_at_edge_for_edge_scrolling, LITEST_TOUCHPAD, LITEST_CLICKPAD);
litest_add("touchpad:palm", touchpad_no_palm_detect_2fg_scroll, LITEST_TOUCHPAD, LITEST_SINGLE_TOUCH);
litest_add("touchpad:palm", touchpad_palm_detect_both_edges, LITEST_TOUCHPAD, LITEST_SINGLE_TOUCH);
litest_add("touchpad:palm", touchpad_palm_detect_tool_palm, LITEST_TOUCHPAD, LITEST_SINGLE_TOUCH);
litest_add("touchpad:palm", touchpad_palm_detect_tool_palm_on_off, LITEST_TOUCHPAD, LITEST_SINGLE_TOUCH);
litest_add("touchpad:palm", touchpad_palm_detect_tool_palm_tap, LITEST_TOUCHPAD, LITEST_SINGLE_TOUCH);
litest_add("touchpad:left-handed", touchpad_left_handed, LITEST_TOUCHPAD|LITEST_BUTTON, LITEST_CLICKPAD);
litest_add_for_device("touchpad:left-handed", touchpad_left_handed_appletouch, LITEST_APPLETOUCH);