/******************************************************************************************************
** File Name: ZLG7290.C
** Description: ZLG7290操作軟件包。
********************************************************************************************************/
#define  IN_ZLG7290
#include  "config.h"

#define  ZLG7290 	0x70 		/* ZLG7290的IIC地址 */


// ZLG7290寄存器地址(子地址)
#define  SubKey  	0x01 
#define  SubCmdBuf 	0x07
#define  SubDpRam 	0x10



/*********************************************************************************************************
** Function name: DelayMS
** Descriptions: 長軟件延時
** Input: i    延時參數，值越大時延時越久
** Output: 無
********************************************************************************************************/
void DelayMS(uint32 dly)
{  
    uint8  i;

    for(; dly>0; dly--) 
      for(i=0; i<100; i++);
}



/*********************************************************************************************************
** Function name: ZLG7290_SendData
** Descriptions: 發送數據
** Input: SubAdd 	輸入數據
**        DATA 	 	輸入值
** Output: 0 表示Fail
**         1 表示OK
********************************************************************************************************/
unsigned char ZLG7290_SendData(unsigned char SubAdd,unsigned char Data)
{
    unsigned char suba[2];
    
	if(SubAdd>0x17) return 0;
	
	suba[0] = 1;                        // 子地址個數， chg by HSB
	suba[1] = SubAdd;                   // 子地址，  chg by HSB
	ISendStr(ZLG7290, suba, &Data, 1);  // chg by HSB
	DelayMS(10);
	return 1;
}



/*********************************************************************************************************
** Function name: ZLG7290_SendCmd
** Descriptions: 發送命令（對子地址7、8）
** Input: DATA1    命令1
**        DATA2    命令2
** Output: 0 表示Fail
**         1 表示OK
********************************************************************************************************/
unsigned char ZLG7290_SendCmd(unsigned char Data1,unsigned char Data2)
{
    unsigned char Data[2];
    unsigned char suba[2];
    
	Data[0] = Data1;
	Data[1] = Data2;
	suba[0] = 1;                        // chg by HSB
	suba[1] = SubCmdBuf;                // chg by HSB
	ISendStr(ZLG7290, suba, Data, 2);   // chg by HSB
	DelayMS(1000);
	
	return(1);
}  



/*********************************************************************************************************
** Function name: ZLG7290_SendBuf
** Descriptions: 向顯示緩沖區發送數據
** Input: *disp_buf  	要發送數據的起始地址
**         num 			發送個數
** Output: 無
********************************************************************************************************/
void  ZLG7290_SendBuf(unsigned char *disp_buf,unsigned char num)
{
	unsigned char  i;
	
	for(i=0; i<num; i++)
	{	
		ZLG7290_SendCmd(0x60 + i, *disp_buf);
		disp_buf++;
	}
}



/*********************************************************************************************************
** Function name: ZLG7290_GetKey
** Descriptions: 讀取鍵值
** Input: 無
** Output: >0 表示鍵值  (低8位為鍵碼，高8位為按鍵次數)
**         =0 表示無鍵按下
********************************************************************************************************/
unsigned short	ZLG7290_GetKey(void)
{
    unsigned char rece[2];    
    unsigned char suba[2];
    
    rece[0] = rece[1] =  0;             // chg by HSB
	suba[0] = 1;                        // chg by HSB
	suba[1] = SubKey;                   // chg by HSB    	
	IRcvStr(ZLG7290, suba, rece, 2);    // chg by HSB   
	DelayMS(10);
	
	return (rece[0] | (rece[1]<<8));    // chg by HSB   
}


/*********************************************************************************************************
**                            End Of File
********************************************************************************************************/