/****************************************************************************
*   Copyright: (C)2014 Î人ÁèÔÆǶÈëʽʵÑéÊÒ www.emblinux.com
*      Author:  GuoWenxue<guowenxue@gmail.com> QQ: 281143292
* Description: ±¾Àý³ÌÔڷܶ·STM32 V5¿ª·¢°åÉϵ÷ͨ¹ý; LED1-PB5  LED2-PD6 LED3-PD3
* 
*   ChangeLog:
*        °æ±¾ºÅ     ÈÕÆÚ       ×÷Õß      ˵Ã÷
*        V1.0.0  2014.08.22  GuoWenxue   ·¢²¼¸Ã°æ±¾
****************************************************************************/
#include "stm32f10x.h"
#include "stm32v5_uart.h"
#include "stm32v5_systick.h"
#include "lcd_r61509v.h"
#include "lcd_draw.h"
#include "stm32v5_ov7670.h"
#include <stdio.h>

void RCC_Configuration(void)
{
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE); 
  RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC 
  						           |RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE , ENABLE);
}


static void set_camera_lcd_window(void)
{
	LCDD_Fill(COLOR_WHITE);
	
	/* ²Î¿¼LCDÇý¶¯Æ÷ÊÖ²á R61509VÊÖ²á.pdf */
  LCD_WriteReg(R61509V_R003H,0x1018); //Entry Mode ͼÏñÏÔʾ·½ÏòΪ×óÏÂÆð  ÐеÝÔö  Áеݼõ
	LCD_SetWindow(0, 40, 240, 320);     //ÉãÏñÍ·Êä³öΪQVGA,ËùÒÔ´°¿Ú´óСΪ240*320 
	LCD_SetCursor(0, 359);              //ˮƽÏÔʾÆðʼµØÖ·0,´¹Ö±ÏÔʾÆðʼµØÖ·359
}

int main(void)
{	
  uint32_t i;
  uint16_t data;

	RCC_Configuration();
	sysclock_init();        /* ³õʼ»¯sysclock,ÌṩÑÓʱº¯Êý */
	//dbg_setup_uart();     /* ³õʼ»¯´®¿ÚºÍprintf */
	LCD_Initialize();       /* ³õʼ»¯LCD */
	OV7670_Initialize(FMT_QVGA_RGB565);    /* ³õʼ»¯OV7670ÉãÏñÍ· */

	//printf("Start OV7670 camera monitor and LCD display...\n");		
  set_camera_lcd_window();
	
	g_OV7670_VSYNC = 0;
  LCD_WriteRAM_Prepare();	            //×¼±¸Ð´Êý¾Ýµ½ÏÔʾÇø	
  while(1)
  {
		/*ÔÚÏÂÃæµÄ´úÂëÖУ¬ÎÒÃÇÖ±½ÓʹÓúê¶ø²»ÊǺ¯Êýµ÷Ó㬿ÉÒÔÃ÷ÏÔ¼Ó¿ì³ÌÐòËٶȣ»
		  Èç¹û¸Ä³Éºêµ÷Óã¬ÔÚŲ¶¯ÉãÏñÍ·µÄ¹ý³ÌÖлá³öÏÖ¿¨ÆÁÏÖÏó */
		if(2 == g_OV7670_VSYNC)
		{
			//printf("Read a frame and write to LCD\n");
			OV7670_FIFO_READ_PREPARE();
			
			for(i=0; i<OV7670_OUT_MAX_PIXS; i++)
			{
				FIFO_RCLK_L(); 
				data = ((GPIOC->IDR<<8) & 0xff00);	
			
				FIFO_RCLK_H();
				FIFO_RCLK_L();
			
				data |= (((GPIOC->IDR) & 0x00ff));
				FIFO_RCLK_H();
				LCD_D()=data;   //½«FIFOÖеÄ16λÊý¾ÝдÈëÏÔʾÇø 				
			}	
			
			g_OV7670_VSYNC = 0;			
		} /* (2 == g_OV7670_VSYNC) */
  }
}