/*********************************************************************************
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* Copyright: (C) 2021 LingYun IoT System Studio
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* All rights reserved.
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*
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* Filename: lvgl_demo.c
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* Description: This file is LVGL demo program.
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*
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* Version: 1.0.0(2021年09月27日)
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* Author: Guo Wenxue <guowenxue@gmail.com>
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* ChangeLog: 1, Release initial version on "2021年09月27日 22时16分52秒"
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*
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********************************************************************************/
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#include <stdio.h>
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#include <unistd.h>
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#include <pthread.h>
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#include <time.h>
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#include <sys/time.h>
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#include "lvgl/lvgl.h"
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#include "lv_drivers/display/fbdev.h"
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#include "lv_drivers/indev/evdev.h"
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#include "lv_demos/lv_demo.h"
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#define DISP_BUF_SIZE (128 * 1024)
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int main(void)
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{
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lv_disp_drv_t disp_drv;
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lv_indev_drv_t indev_drv;
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static lv_color_t buf[DISP_BUF_SIZE]; /* buffer for LVGL to draw the screen's content */
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static lv_disp_draw_buf_t disp_buf; /* Initialize a descriptor for the buffer */
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/* LVGL context init */
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lv_init();
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/* Linux frame buffer device init */
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fbdev_init();
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/* linux touchscreen device init */
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lv_indev_drv_init(&indev_drv);
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indev_drv.type =LV_INDEV_TYPE_POINTER;
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indev_drv.read_cb =evdev_read;
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lv_indev_drv_register(&indev_drv);
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/* Initialize and register a display driver */
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lv_disp_draw_buf_init(&disp_buf, buf, NULL, DISP_BUF_SIZE);
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lv_disp_drv_init(&disp_drv);
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disp_drv.draw_buf = &disp_buf;
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disp_drv.flush_cb = fbdev_flush;
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disp_drv.hor_res = 800;
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disp_drv.ver_res = 480;
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lv_disp_drv_register(&disp_drv);
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/* Create a Demo */
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//lv_demo_widgets();
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lv_demo_music();
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//lv_demo_keypad_encoder();
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//lv_demo_stress();
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/* Handle LitlevGL tasks (tickless mode) */
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while(1) {
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lv_task_handler();
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usleep(5000);
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}
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return 0;
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}
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/* Set in lv_conf.h as LV_TICK_CUSTOM_SYS_TIME_EXPR */
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uint32_t millis(void)
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{
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static uint64_t start_ms = 0;
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struct timeval tv_start;
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struct timeval tv_now;
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uint64_t now_ms;
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uint32_t time_ms;
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if(start_ms == 0)
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{
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gettimeofday(&tv_start, NULL);
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start_ms = (tv_start.tv_sec * 1000000 + tv_start.tv_usec) / 1000;
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}
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gettimeofday(&tv_now, NULL);
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now_ms = (tv_now.tv_sec * 1000000 + tv_now.tv_usec) / 1000;
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time_ms = now_ms - start_ms;
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return time_ms;
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}
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