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| author | duson <dusonlin@emc.com.tw> | 2015-07-07 10:25:39 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-07-07 11:28:31 -0700 |
| commit | 539c4b88146cc320aee18b08ebb43ab57d523dcc (patch) | |
| tree | 6615ce7086cc07d2529ffc793f2027aa41e6109a /drivers/input/mouse | |
| parent | a5cba18c4de288335a975b5d57b68f6787330985 (diff) | |
| download | lwn-539c4b88146cc320aee18b08ebb43ab57d523dcc.tar.gz lwn-539c4b88146cc320aee18b08ebb43ab57d523dcc.zip | |
Input: elan_i2c - change the hover event from MT to ST
The firmware only reports hover condition while the very first contact is
approaching the surface; the hover is not reported for the subsequent
contacts. Therefore we should not be using ABS_MT_DISTANCE to report hover
but rather its single-touch counterpart ABS_DISTANCE.
Signed-off-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/mouse')
| -rw-r--r-- | drivers/input/mouse/elan_i2c_core.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index 62641f2adaf7..5b5f403d8ce6 100644 --- a/drivers/input/mouse/elan_i2c_core.c +++ b/drivers/input/mouse/elan_i2c_core.c @@ -771,7 +771,7 @@ static const struct attribute_group *elan_sysfs_groups[] = { */ static void elan_report_contact(struct elan_tp_data *data, int contact_num, bool contact_valid, - bool hover_event, u8 *finger_data) + u8 *finger_data) { struct input_dev *input = data->input; unsigned int pos_x, pos_y; @@ -815,9 +815,7 @@ static void elan_report_contact(struct elan_tp_data *data, input_mt_report_slot_state(input, MT_TOOL_FINGER, true); input_report_abs(input, ABS_MT_POSITION_X, pos_x); input_report_abs(input, ABS_MT_POSITION_Y, data->max_y - pos_y); - input_report_abs(input, ABS_MT_DISTANCE, hover_event); - input_report_abs(input, ABS_MT_PRESSURE, - hover_event ? 0 : scaled_pressure); + input_report_abs(input, ABS_MT_PRESSURE, scaled_pressure); input_report_abs(input, ABS_TOOL_WIDTH, mk_x); input_report_abs(input, ABS_MT_TOUCH_MAJOR, major); input_report_abs(input, ABS_MT_TOUCH_MINOR, minor); @@ -839,14 +837,14 @@ static void elan_report_absolute(struct elan_tp_data *data, u8 *packet) hover_event = hover_info & 0x40; for (i = 0; i < ETP_MAX_FINGERS; i++) { contact_valid = tp_info & (1U << (3 + i)); - elan_report_contact(data, i, contact_valid, hover_event, - finger_data); + elan_report_contact(data, i, contact_valid, finger_data); if (contact_valid) finger_data += ETP_FINGER_DATA_LEN; } input_report_key(input, BTN_LEFT, tp_info & 0x01); + input_report_abs(input, ABS_DISTANCE, hover_event != 0); input_mt_report_pointer_emulation(input, true); input_sync(input); } @@ -922,6 +920,7 @@ static int elan_setup_input_device(struct elan_tp_data *data) input_abs_set_res(input, ABS_Y, data->y_res); input_set_abs_params(input, ABS_PRESSURE, 0, ETP_MAX_PRESSURE, 0, 0); input_set_abs_params(input, ABS_TOOL_WIDTH, 0, ETP_FINGER_WIDTH, 0, 0); + input_set_abs_params(input, ABS_DISTANCE, 0, 1, 0, 0); /* And MT parameters */ input_set_abs_params(input, ABS_MT_POSITION_X, 0, data->max_x, 0, 0); @@ -934,7 +933,6 @@ static int elan_setup_input_device(struct elan_tp_data *data) ETP_FINGER_WIDTH * max_width, 0, 0); input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, ETP_FINGER_WIDTH * min_width, 0, 0); - input_set_abs_params(input, ABS_MT_DISTANCE, 0, 1, 0, 0); data->input = input; |