Modify LVGL touch driver

Marlin/src/lcd/extui/mks_ui/tft_lvgl_configuration.cpp

@@ -264,9 +264,7 @@ unsigned int getTickDiff(unsigned int curTick, unsigned int lastTick) {
 }
 
 static bool get_point(int16_t *x, int16_t *y) {
- bool is_touched = touch.getRawPoint(x, y);
-
- if (!is_touched) return false;
+ if (!touch.getRawPoint(x, y)) return false;
 
  #if ENABLED(TOUCH_SCREEN_CALIBRATION)
  const calibrationState state = touch_calibration.get_calibration_state();
@@ -286,34 +284,26 @@ static bool get_point(int16_t *x, int16_t *y) {
 
 bool my_touchpad_read(lv_indev_drv_t * indev_driver, lv_indev_data_t * data) {
  static int16_t last_x = 0, last_y = 0;
- static uint8_t last_touch_state = LV_INDEV_STATE_REL;
- static int32_t touch_time1 = 0;
- uint32_t tmpTime, diffTime = 0;
-
- tmpTime = millis();
- diffTime = getTickDiff(tmpTime, touch_time1);
- if (diffTime > 20) {
- if (get_point(&last_x, &last_y)) {
-
- if (last_touch_state == LV_INDEV_STATE_PR) return false;
- data->state = LV_INDEV_STATE_PR;
-
- // Set the coordinates (if released use the last-pressed coordinates)
+ if (get_point(&last_x, &last_y)) {
+ #if TFT_ROTATION == TFT_ROTATE_180
+ data->point.x = TFT_WIDTH - last_x;
+ data->point.y = TFT_HEIGHT - last_y;
+ #else
  data->point.x = last_x;
  data->point.y = last_y;
-
- last_x = last_y = 0;
- last_touch_state = LV_INDEV_STATE_PR;
- }
- else {
- if (last_touch_state == LV_INDEV_STATE_PR)
- data->state = LV_INDEV_STATE_REL;
- last_touch_state = LV_INDEV_STATE_REL;
- }
-
- touch_time1 = tmpTime;
+ #endif
+ data->state = LV_INDEV_STATE_PR;
+ }
+ else {
+ #if TFT_ROTATION == TFT_ROTATE_180
+ data->point.x = TFT_WIDTH - last_x;
+ data->point.y = TFT_HEIGHT - last_y;
+ #else
+ data->point.x = last_x;
+ data->point.y = last_y;
+ #endif
+ data->state = LV_INDEV_STATE_REL;
  }
-
  return false; // Return `false` since no data is buffering or left to read
 }
 

buildroot/tests/mks_robin_maple

@@ -16,6 +16,7 @@ exec_test $1 $2 "MKS Robin config (FSMC Color UI)" "$3"
 use_example_configs Mks/Robin
 opt_disable TFT_CLASSIC_UI TFT_COLOR_UI TOUCH_SCREEN TFT_RES_320x240
 opt_enable TFT_LVGL_UI TFT_RES_480x320
+opt_set TFT_ROTATION TFT_ROTATE_180
 exec_test $1 $2 "MKS Robin nano v1.2 LVGL FSMC" "$3"
 
 # cleanup