HoloCubic/2.Firmware/HoloCubic_fw/display.cpp

69 lines
1.5 KiB
C++

#include "display.h"
#include <TFT_eSPI.h>
/*
TFT pins should be set in path/to/Arduino/libraries/TFT_eSPI/User_Setups/Setup24_ST7789.h
*/
TFT_eSPI tft = TFT_eSPI();
static lv_disp_buf_t disp_buf;
static lv_color_t buf[LV_HOR_RES_MAX * 10];
void my_print(lv_log_level_t level, const char* file, uint32_t line, const char* fun, const char* dsc)
{
Serial.printf("%s@%d %s->%s\r\n", file, line, fun, dsc);
Serial.flush();
}
void my_disp_flush(lv_disp_drv_t* disp, const lv_area_t* area, lv_color_t* color_p)
{
uint32_t w = (area->x2 - area->x1 + 1);
uint32_t h = (area->y2 - area->y1 + 1);
tft.startWrite();
tft.setAddrWindow(area->x1, area->y1, w, h);
tft.pushColors(&color_p->full, w * h, true);
tft.endWrite();
lv_disp_flush_ready(disp);
}
void Display::init()
{
ledcSetup(LCD_BL_PWM_CHANNEL, 5000, 8);
ledcAttachPin(LCD_BL_PIN, LCD_BL_PWM_CHANNEL);
lv_init();
lv_log_register_print_cb(my_print); /* register print function for debugging */
tft.begin(); /* TFT init */
tft.setRotation(4); /* mirror */
lv_disp_buf_init(&disp_buf, buf, NULL, LV_HOR_RES_MAX * 10);
/*Initialize the display*/
lv_disp_drv_t disp_drv;
lv_disp_drv_init(&disp_drv);
disp_drv.hor_res = 240;
disp_drv.ver_res = 240;
disp_drv.flush_cb = my_disp_flush;
disp_drv.buffer = &disp_buf;
lv_disp_drv_register(&disp_drv);
}
void Display::routine()
{
lv_task_handler();
}
void Display::setBackLight(float duty)
{
duty = constrain(duty, 0, 1);
duty = 1 - duty;
ledcWrite(LCD_BL_PWM_CHANNEL, (int)(duty * 255));
}