#ifndef _BSP_LCD_H
#define _BSP_LCD_H
#include "imx6ul.h"

/* 颜色 */
#define LCD_BLUE		  0x000000FF
#define LCD_GREEN		  0x0000FF00
#define LCD_RED 		  0x00FF0000
#define LCD_CYAN		  0x0000FFFF
#define LCD_MAGENTA 	  0x00FF00FF
#define LCD_YELLOW		  0x00FFFF00
#define LCD_LIGHTBLUE	  0x008080FF
#define LCD_LIGHTGREEN	  0x0080FF80
#define LCD_LIGHTRED	  0x00FF8080
#define LCD_LIGHTCYAN	  0x0080FFFF
#define LCD_LIGHTMAGENTA  0x00FF80FF
#define LCD_LIGHTYELLOW   0x00FFFF80
#define LCD_DARKBLUE	  0x00000080
#define LCD_DARKGREEN	  0x00008000
#define LCD_DARKRED 	  0x00800000
#define LCD_DARKCYAN	  0x00008080
#define LCD_DARKMAGENTA   0x00800080
#define LCD_DARKYELLOW	  0x00808000
#define LCD_WHITE		  0x00FFFFFF
#define LCD_LIGHTGRAY	  0x00D3D3D3
#define LCD_GRAY		  0x00808080
#define LCD_DARKGRAY	  0x00404040
#define LCD_BLACK		  0x00000000
#define LCD_BROWN		  0x00A52A2A
#define LCD_ORANGE		  0x00FFA500
#define LCD_TRANSPARENT   0x00000000

/* 屏幕ID */
#define ATK4342		0X4342	/* 4.3寸480*272 	*/
#define ATK4384		0X4384	/* 4.3寸800*480 	*/
#define ATK7084		0X7084	/* 7寸800*480 		*/
#define ATK7016		0X7016	/* 7寸1024*600 		*/
#define ATK1018		0X1018	/* 10.1寸1280*800 	*/
#define ATKVGA		0xff00 /* VGA */

/* LCD显存地址 */
#define LCD_FRAMEBUF_ADDR	(0x89000000)

/* LCD控制参数结构体 */
struct tftlcd_typedef {
    unsigned short height;    /* LCD屏幕高度 */
    unsigned short width;     /* LCD屏幕宽度 */
    unsigned char pixsize;    /* LCD每个像素所占字节大小 */
    unsigned short vspw;      /* VSYNC 信号宽度 */
    unsigned short vbpd;      /* 帧同步信号后肩 */
    unsigned short vfpd;      /* 帧同步信号前肩 */
    unsigned short hspw;      /* HSYNC 信号宽度 */
    unsigned short hbpd;      /* 水平同步信号后见肩 */
    unsigned short hfpd;      /* 水平同步信号前肩 */
    unsigned int framebuffer; /* LCD显存首地址 */
    unsigned int forecolor;   /* 前景色 */
    unsigned int backcolor;   /* 背景色 */
    unsigned int id;          /* 屏幕ID */
};

extern struct tftlcd_typedef tftlcd_dev;


/* 函数声明 */
void lcd_init(void);
unsigned short lcd_read_panelid(void);
void lcdgpio_init(void);
void lcdclk_init(unsigned char loopDiv, unsigned char prediv, unsigned char div);
void lcd_reset(void);
void lcd_noreset(void);
void lcd_enable(void);
void video_pllinit(unsigned char loopdivi, unsigned char postdivi);
void lcd_clear(unsigned int color);
void lcd_fill(unsigned    short x0, unsigned short y0, unsigned short x1, unsigned short y1, unsigned int color);

/*
 * @description		: 画点函数 
 * @param - x		: x轴坐标
 * @param - y		: y轴坐标
 * @param - color	: 颜色值
 * @return 			: 无
 */
inline void lcd_drawpoint(unsigned short x,unsigned short y,unsigned int color)
{ 
  	*(unsigned int*)((unsigned int)tftlcd_dev.framebuffer + 
		             tftlcd_dev.pixsize * (tftlcd_dev.width * y+x))=color;
}


/*
 * @description		: 读取指定点的颜色值
 * @param - x		: x轴坐标
 * @param - y		: y轴坐标
 * @return 			: 读取到的指定点的颜色值
 */
inline unsigned int lcd_readpoint(unsigned short x,unsigned short y)
{ 
	return *(unsigned int*)((unsigned int)tftlcd_dev.framebuffer + 
		   tftlcd_dev.pixsize * (tftlcd_dev.width * y + x));
}
#endif