diff options
| author | Sjoerd Simons <sjoerd.simons@collabora.co.uk> | 2015-04-06 23:10:30 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-04-06 23:37:32 +0300 |
| commit | b6d2d3289f84e9c7449dff04fb959e29207acd80 (patch) | |
| tree | 509c2f7359dec6c3cfadec6196baab452ca576ce /drivers/input | |
| parent | b23157dc74272ac8ebffd1a566e3e822dbc3e65f (diff) | |
| download | linux-b6d2d3289f84e9c7449dff04fb959e29207acd80.tar.xz | |
Input: atmel_mxt_ts - split out touchpad initialisation logic
If the "linux,gpio-keymap" DT property is defined, the T19 keys are
configured and the device is setup as a touchpad rather than a touchscreen.
The logic is part of the input device initialization routine but it can be
factored out to its own function to simplify the former.
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/touchscreen/atmel_mxt_ts.c | 52 |
1 files changed, 30 insertions, 22 deletions
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 1b3b845d92f4..2875ddf37289 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -1822,15 +1822,37 @@ static int mxt_read_t100_config(struct mxt_data *data) static int mxt_input_open(struct input_dev *dev); static void mxt_input_close(struct input_dev *dev); +static void mxt_set_up_as_touchpad(struct input_dev *input_dev, + struct mxt_data *data) +{ + const struct mxt_platform_data *pdata = data->pdata; + int i; + + input_dev->name = "Atmel maXTouch Touchpad"; + + __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit); + + input_abs_set_res(input_dev, ABS_X, MXT_PIXELS_PER_MM); + input_abs_set_res(input_dev, ABS_Y, MXT_PIXELS_PER_MM); + input_abs_set_res(input_dev, ABS_MT_POSITION_X, + MXT_PIXELS_PER_MM); + input_abs_set_res(input_dev, ABS_MT_POSITION_Y, + MXT_PIXELS_PER_MM); + + for (i = 0; i < pdata->t19_num_keys; i++) + if (pdata->t19_keymap[i] != KEY_RESERVED) + input_set_capability(input_dev, EV_KEY, + pdata->t19_keymap[i]); +} + static int mxt_initialize_input_device(struct mxt_data *data) { - struct device *dev = &data->client->dev; const struct mxt_platform_data *pdata = data->pdata; + struct device *dev = &data->client->dev; struct input_dev *input_dev; int error; unsigned int num_mt_slots; unsigned int mt_flags = 0; - int i; switch (data->multitouch) { case MXT_TOUCH_MULTI_T9: @@ -1867,26 +1889,6 @@ static int mxt_initialize_input_device(struct mxt_data *data) input_set_capability(input_dev, EV_KEY, BTN_TOUCH); - if (pdata->t19_num_keys) { - __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit); - - for (i = 0; i < pdata->t19_num_keys; i++) - if (pdata->t19_keymap[i] != KEY_RESERVED) - input_set_capability(input_dev, EV_KEY, - pdata->t19_keymap[i]); - - mt_flags |= INPUT_MT_POINTER; - - input_abs_set_res(input_dev, ABS_X, MXT_PIXELS_PER_MM); - input_abs_set_res(input_dev, ABS_Y, MXT_PIXELS_PER_MM); - input_abs_set_res(input_dev, ABS_MT_POSITION_X, - MXT_PIXELS_PER_MM); - input_abs_set_res(input_dev, ABS_MT_POSITION_Y, - MXT_PIXELS_PER_MM); - - input_dev->name = "Atmel maXTouch Touchpad"; - } - /* For single touch */ input_set_abs_params(input_dev, ABS_X, 0, data->max_x, 0, 0); input_set_abs_params(input_dev, ABS_Y, 0, data->max_y, 0, 0); @@ -1897,6 +1899,12 @@ static int mxt_initialize_input_device(struct mxt_data *data) input_set_abs_params(input_dev, ABS_PRESSURE, 0, 255, 0, 0); } + /* If device has buttons we assume it is a touchpad */ + if (pdata->t19_num_keys) { + mxt_set_up_as_touchpad(input_dev, data); + mt_flags |= INPUT_MT_POINTER; + } + /* For multi touch */ error = input_mt_init_slots(input_dev, num_mt_slots, mt_flags); if (error) { |