Add capacitive touch LCD driver

main/capacitive_touch.h

@@ -0,0 +1,38 @@
+#ifndef CAPACITIVE_TOUCH_H
+#define CAPACITIVE_TOUCH_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "board_config.h"
+
+#define TOUCH_WIDTH 320
+#define TOUCH_HEIGHT 240
+#define TOUCH_MAX_POINTS 5
+
+/*
+ * GT911 reports this panel as 240x320 in the vendor portrait examples.
+ * The app keeps the original 320x240 landscape coordinate system.
+ */
+#define TOUCH_SWAP_XY 1
+#define TOUCH_INVERT_X 1
+#define TOUCH_INVERT_Y 0
+
+typedef struct {
+    uint16_t x;
+    uint16_t y;
+    uint16_t raw_x;
+    uint16_t raw_y;
+    uint8_t id;
+    uint8_t count;
+    bool pressed;
+} capacitive_touch_point_t;
+
+void capacitive_touch_init(void);
+bool capacitive_touch_read(capacitive_touch_point_t *point);
+bool capacitive_touch_read_raw(uint16_t *x, uint16_t *y);
+bool capacitive_touch_is_pressed(void);
+
+#endif
+
+