Overwrote the old indev driver to make the touch ic work with lvgl. Code is dirty, needs to be cleaned.

src/W800 SDK v1.00.08/app/gfx/lv_port_indev.c

@@ -11,6 +11,7 @@
  *********************/
 #include "lv_port_indev.h"
 #include "touchpad.h"
+#include "i2c.h"
 
 /*********************
  *      DEFINES
@@ -67,6 +68,18 @@ lv_indev_t * indev_touchpad;
  *   GLOBAL FUNCTIONS
  **********************/
 
+uint16_t x = 0, y = 0, action = 0;
+
+static void touch_screen_isr(void *arg)
+{
+    tls_clr_gpio_irq_status(WM_IO_PB_00);
+    uint8_t tc_data[9];
+    i2c_read(0x15, 0x00, tc_data, sizeof tc_data);
+    x = ((tc_data[3] & 0x0f) << 8) | tc_data[4];
+    y = ((tc_data[5] & 0x0f) << 8) | tc_data[6];
+    action = tc_data[3] >> 6;
+}
+
 void lv_port_indev_init(void)
 {
     /**
@@ -88,7 +101,10 @@ void lv_port_indev_init(void)
      * -----------------*/
 
     /*Initialize your touchpad if you have*/
-    touchpad_init();
+    //touchpad_init();
+    tls_gpio_cfg(WM_IO_PB_00, WM_GPIO_DIR_INPUT, WM_GPIO_ATTR_PULLHIGH);
+    tls_gpio_isr_register(WM_IO_PB_00, &(touch_screen_isr), NULL);
+    tls_gpio_irq_enable(WM_IO_PB_00, WM_GPIO_IRQ_TRIG_FALLING_EDGE);
 
     /*Register a touchpad input device*/
     lv_indev_drv_init(&indev_drv);
@@ -187,12 +203,12 @@ static void touchpad_init(void)
 }
 
 /*Will be called by the library to read the touchpad*/
-static void touchpad_read(lv_indev_drv_t * indev_drv, lv_indev_data_t * data)
+/*static void touchpad_read(lv_indev_drv_t * indev_drv, lv_indev_data_t * data)
 {
     static lv_coord_t last_x = 0;
     static lv_coord_t last_y = 0;
 
-    /*Save the pressed coordinates and the state*/
+    // Save the pressed coordinates and the state
     if(touchpad_is_pressed()) {
         touchpad_get_xy(&last_x, &last_y);
         data->state = LV_INDEV_STATE_PR;
@@ -201,30 +217,60 @@ static void touchpad_read(lv_indev_drv_t * indev_drv, lv_indev_data_t * data)
         data->state = LV_INDEV_STATE_REL;
     }
 
-    /*Set the last pressed coordinates*/
+    // Set the last pressed coordinates
-    data->point.x = last_x;
+    data->point.x = 240-last_y;
-    data->point.y = last_y;
+    data->point.y = last_x;
+}*/
+
+static void touchpad_read(lv_indev_drv_t * indev_drv, lv_indev_data_t * data)
+{
+    static lv_coord_t last_x = 0;
+    static lv_coord_t last_y = 0;
+
+    // Save the pressed coordinates and the state
+    if(touchpad_is_pressed()) {
+        last_x = x;
+        last_y = y;
+        data->state = LV_INDEV_STATE_PR;
+    }
+    else {
+        data->state = LV_INDEV_STATE_REL;
+    }
+
+    // Set the last pressed coordinates
+    data->point.x = 239-last_x;
+    data->point.y = 239-last_y;
 }
 
 /*Return true is the touchpad is pressed*/
-static bool touchpad_is_pressed(void)
+/*static bool touchpad_is_pressed(void)
 {
-    /*Your code comes here*/
+    // Your code comes here
     bool val = bsp_touchpad_is_pressed();
     // printf("---> %d\n",val);
     return val;
+}*/
+
+static bool touchpad_is_pressed(void)
+{
+    return action == 2;
 }
 
 /*Get the x and y coordinates if the touchpad is pressed*/
 static void touchpad_get_xy(lv_coord_t * x, lv_coord_t * y)
 {
-    /*Your code comes here*/
+    //Your code comes here
     // (*x) = ;
     // (*y) = ;
     bsp_touchpad_get_xy(x, y);
     // printf("---> x:%d y:%d\n", (*x), (*y));
 }
 
+/*static void touchpad_get_xy(lv_coord_t * x, lv_coord_t * y)
+{
+    
+}*/
+
 // /*------------------
 //  * Mouse
 //  * -----------------*/