#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "../lvgl/lvgl.h"
#include "../ili9341/core.h"
#include "../ili9341/lv_driver.h"
#include "lv_conf.h"

short gPosx,gPosy;
lv_indev_t * indev_touchpad;	// ?????????
lv_obj_t* kb;

short ReadX(){
	static short average[2] = {0};
	static unsigned char pos = 0;
	short ret = 0;
  LL_GPIO_InitTypeDef GPIO_InitStruct = {0};

  GPIO_InitStruct.Pin = LL_GPIO_PIN_0;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_DOWN;
  LL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = LL_GPIO_PIN_1;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
  LL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = LL_GPIO_PIN_0;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_DOWN;
  LL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = LL_GPIO_PIN_1;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
  LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
	
  LL_GPIO_SetOutputPin(GPIOB, LL_GPIO_PIN_1);

  LL_GPIO_ResetOutputPin(GPIOA, LL_GPIO_PIN_1);
			LL_mDelay(1);
	ADC1->CHSELR = LL_ADC_CHANNEL_8;
 ADC1->IER    = 0;
  ADC1->CR |= ADC_CR_ADSTART;

	while (ADC1->CR & ADC_CR_ADSTART)
	;

	if( LL_ADC_REG_ReadConversionData32(ADC1) < 500){
		gPosy = -1;
		return -1;
	}
	float s = (float)( LL_ADC_REG_ReadConversionData32(ADC1) -600)/11.65;
	ret = s;
	{
		gPosy = ret;
		return ret;
	}
}


short ReadY(){
	static short average[3] = {0};
	static unsigned char pos = 0;
	short ret = 0;
	
  LL_GPIO_InitTypeDef GPIO_InitStruct = {0};

  GPIO_InitStruct.Pin = LL_GPIO_PIN_0;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
  LL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = LL_GPIO_PIN_1;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_DOWN;
  LL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = LL_GPIO_PIN_0;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
  LL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = LL_GPIO_PIN_1;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_DOWN;
  LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
	
  LL_GPIO_SetOutputPin(GPIOB, LL_GPIO_PIN_0);

  LL_GPIO_ResetOutputPin(GPIOA, LL_GPIO_PIN_0);
			LL_mDelay(1);
	ADC1->CHSELR = LL_ADC_CHANNEL_9;
 ADC1->IER    = 0;
  ADC1->CR |= ADC_CR_ADSTART;

	while (ADC1->CR & ADC_CR_ADSTART)
	;

	ret = LL_ADC_REG_ReadConversionData32(ADC1);
	if(ret < 500) {
		gPosx = -1;
		return -1;
	}
	float tmp = (float)(3560 - ret)/9.3;
	ret = (short)tmp;
	if(ret < 0)
		return 0;
	else {
		gPosx = ret;
		return ret;
	}
	
}


static bool 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;
	
	
    if( (gPosy > 0 )&&(gPosx > 0)) {
        last_x = gPosx;
        last_y = gPosy;
 
        data->point.x = last_x;
        data->point.y = last_y;
        data->state = LV_INDEV_STATE_PR;
    }
    else
    {
        data->point.x = last_x;
        data->point.y = last_y;
        data->state = LV_INDEV_STATE_REL;
    }

    return false;
}

static void ta_event_cb(lv_event_t * e)
{
    lv_event_code_t code = lv_event_get_code(e);
    lv_obj_t * ta = lv_event_get_target(e);
    lv_obj_t * kb = lv_event_get_user_data(e);
    if(code == LV_EVENT_FOCUSED) {
        lv_keyboard_set_textarea(kb, ta);
        lv_obj_clear_flag(kb, LV_OBJ_FLAG_HIDDEN);
    }
    if(code == LV_EVENT_DEFOCUSED) {
        lv_keyboard_set_textarea(kb, NULL);
        lv_obj_add_flag(kb, LV_OBJ_FLAG_HIDDEN);
    }
}


int main(void)
{
	char tmp[20] = "x: ";
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  LL_APB1_GRP2_EnableClock(LL_APB1_GRP2_PERIPH_SYSCFG);
  LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);

  /* SysTick_IRQn interrupt configuration */
  NVIC_SetPriority(SysTick_IRQn, 3);

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_DMA_Init();
  MX_SPI2_Init();
	MX_ADC_Init();
	LL_mDelay(100);
	 LL_ADC_Enable(ADC1); 


	lv_init(); // LittleVgl (6.0)

  /* USER CODE BEGIN 2 */
	ILI9341_init();

  /* USER CODE END 2 */
		LL_mDelay(100);
		
		static lv_color_t disp_buf1[320 * 10] = {0};
		static lv_disp_draw_buf_t buf;
		lv_disp_draw_buf_init(&buf, disp_buf1, NULL, 320 * 10);


    lv_disp_drv_t disp_drv;
    lv_disp_drv_init(&disp_drv);
    disp_drv.draw_buf = &buf;
    disp_drv.flush_cb = ILI9341_flush;
    disp_drv.hor_res = 320;                /*Set the horizontal resolution in pixels*/
    disp_drv.ver_res = 240;                /*Set the vertical resolution in pixels*/
    lv_disp_drv_register(&disp_drv);
		LL_mDelay(100);

		
    lv_indev_drv_t indev_drv;

    lv_indev_drv_init(&indev_drv);
    indev_drv.type = LV_INDEV_TYPE_POINTER;
    indev_drv.read_cb = touchpad_read;
    indev_touchpad = lv_indev_drv_register(&indev_drv);

		lv_obj_t *src = lv_scr_act();

		lv_obj_t *label1 = lv_label_create(src);
		lv_obj_t *label2 = lv_label_create(src);

		//LV_LABEL_LONG_EXPAND
		lv_obj_set_pos(label1,120,20);
		lv_obj_set_size(label1,100,50);
		sprintf(tmp,"x:%d", ReadX());
		lv_label_set_text(label1,tmp);
    //lv_obj_set_style_bg_color(lv_scr_act(), lv_palette_lighten(LV_PALETTE_GREY, 4), 0);
		
		lv_obj_set_pos(label2,120,50);
		lv_obj_set_size(label2,100,50);
		sprintf(tmp,"y:%d", ReadY());
		lv_label_set_text(label2,tmp);
		
		lv_obj_t *label = lv_label_create(lv_scr_act());
    lv_obj_set_style_bg_color(lv_scr_act(), lv_color_hex(0x000000), 0); //0x000000 = ??
    lv_label_set_recolor(label, true);                                  //??????
    lv_obj_set_pos(label, 10, 10);                                      //????
    lv_obj_set_size(label, 80, 60);                                    //?????
    LV_FONT_DECLARE(lv_font_montserrat_20)                              //????
    lv_label_set_text(label, "#00ff80 freq:#");           //????
    lv_obj_set_style_text_font(label, &lv_font_montserrat_20, 0);
		
		kb = lv_keyboard_create(lv_scr_act());
		lv_keyboard_set_mode(kb, LV_KEYBOARD_MODE_NUMBER);
    lv_obj_t * ta;
    ta = lv_textarea_create(lv_scr_act());
    lv_obj_add_event_cb(ta, ta_event_cb, LV_EVENT_ALL, kb);
		lv_obj_set_pos(ta, 90, 10);                                      //????
		lv_textarea_set_placeholder_text(ta, "10000000");
    lv_obj_set_size(ta, 200, 60);
		static lv_style_t style;

		/* Infinite loop */
		/* USER CODE BEGIN WHILE */
		while (1)
		{
		LL_mDelay(1);
		/* USER CODE END WHILE */
		lv_task_handler();
		lv_tick_inc(10);
			 ReadX();
			ReadY();
			
		//sprintf(tmp,"y:%d", ReadX());
		//lv_label_set_text(label1,tmp);//??????
		//LL_mDelay(1);
		//sprintf(tmp,"x:%d", ReadY());
		//lv_label_set_text(label2,tmp);//??????

			/* USER CODE BEGIN 3 */
		}
  /* USER CODE END 3 */
}