110 lines
2.1 KiB
C
110 lines
2.1 KiB
C
/**
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* @file lv_port_indev_templ.c
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*
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*/
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/*Copy this file as "lv_port_indev.c" and set this value to "1" to enable content*/
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#if 1
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/*********************
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* INCLUDES
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*********************/
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#include "lv_port_indev.h"
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#include "lcd.h"
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#include "gt911.h"
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static void touchpad_init(void);
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static void touchpad_read(lv_indev_t * indev, lv_indev_data_t * data);
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static bool touchpad_is_pressed(void);
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static void touchpad_get_xy(int32_t * x, int32_t * y);
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lv_indev_t * indev_touchpad;
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void lv_port_indev_init(void)
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{
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touchpad_init();
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/*Register a touchpad input device*/
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indev_touchpad = lv_indev_create();
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lv_indev_set_type(indev_touchpad, LV_INDEV_TYPE_POINTER);
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lv_indev_set_read_cb(indev_touchpad, touchpad_read);
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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/*------------------
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* Touchpad
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* -----------------*/
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/*Initialize your touchpad*/
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static void touchpad_init(void)
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{
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/*Your code comes here*/
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GT911_Init(0xBA);
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}
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/*Will be called by the library to read the touchpad*/
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static void touchpad_read(lv_indev_t * indev_drv, lv_indev_data_t * data)
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{
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static lv_coord_t last_x = 0;
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static lv_coord_t last_y = 0;
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/*Save the pressed coordinates and the state*/
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if(touchpad_is_pressed()) {
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touchpad_get_xy(&last_x, &last_y);
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data->state = LV_INDEV_STATE_PR;
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}
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else {
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data->state = LV_INDEV_STATE_REL;
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}
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/*Set the last pressed coordinates*/
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data->point.x = last_x;
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data->point.y = last_y;
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}
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/*Return true is the touchpad is pressed*/
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static bool touchpad_is_pressed(void)
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{
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/*Your code comes here*/
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if(GT911_Scanf() != 0)//ÌîдÊÇ·ñ±»°´Ïµĺ¯Êý
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{
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return true;
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}
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return false;
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}
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/*Get the x and y coordinates if the touchpad is pressed*/
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static void touchpad_get_xy(lv_coord_t * x, lv_coord_t * y)
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{
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/*Your code comes here*/
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uint16_t m_x,m_y;
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GT911_getPos(&m_x,&m_y);
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(*x) = m_x;
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(*y) = m_y;
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}
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#else /*Enable this file at the top*/
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/*This dummy typedef exists purely to silence -Wpedantic.*/
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typedef int keep_pedantic_happy;
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#endif
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