zener/lvgl_esp32_drivers
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Move drivers from the lv_port_esp32 to here

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C47D 2020-12-17 00:02:55 -06:00
parent 5a32d98f83
commit 08384030b0
69 changed files with 14977 additions and 2 deletions
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lvgl_touch/FT81x.c Normal file
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/**
* @file FT81x.c
*/
/*********************
* INCLUDES
*********************/
#include "esp_system.h"
#include "esp_log.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include <stddef.h>
#include "FT81x.h"
#include "../lvgl_tft/EVE.h"
#include "../lvgl_tft/EVE_commands.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Get the current position and state of the touchpad
* @param data store the read data here
* @return false: because no more data to be read
*/
bool FT81x_read(lv_indev_drv_t * drv, lv_indev_data_t * data)
{
static int16_t last_x = 0;
static int16_t last_y = 0;
bool touched = true;
uint32_t XY = EVE_memRead32(REG_TOUCH_SCREEN_XY);
uint16_t Y = XY & 0xffff;
uint16_t X = XY >> 16;
// is it not touched (or invalid because of calibration range)
if(X == 0x8000 || Y == 0x8000 || X > LV_HOR_RES_MAX || Y > LV_VER_RES_MAX)
{
touched = false;
X = last_x;
Y = last_y;
}
else
{
last_x = X;
last_y = Y;
}
data->point.x = X;
data->point.y = Y;
data->state = (touched == false ? LV_INDEV_STATE_REL : LV_INDEV_STATE_PR);
return false;
}
/**********************
* STATIC FUNCTIONS
**********************/