#include "Rtcx.h"
#include "string.h"
#include "gpio.h"
#include "stdio.h"
#include "ac780x.h"

DateTime g_dateTime;
//DateTime tmpdateTime;

#define ISL1208_IIC_ADDR		(0x6F)


#define ISL1208_SEC_Reg 		0x00
#define ISL1208_MIN_Reg 		0x01
#define ISL1208_HOUR_Reg 	0x02
#define ISL1208_DATE_Reg 	0x03
#define ISL1208_MONTH_Reg 0x04
#define ISL1208_YEAR_Reg 	0x05
#define ISL1208_WEEK_Reg 	0x06
#define ISL1208_CFG_Reg 		0x07

#define FLAG_Reg 					(0x12)
#define FLAG_VAL 	  			(0xAA)



static uint8_t bin2bcd(uint8_t bin)
{
	return (((bin/10) << 4) + bin%10);
}

static uint8_t bcd2bin(uint8_t bcd)
{
	return ((bcd/16)*10 + bcd%16);
}


/**
* @prototype I2C_ParaInit(void)
*
* @param[in] void
* @return	 void
*
* @brief  	 初始化I2C.
*/
void I2C_ParaInit(void)
{
	I2C_ConfigType i2cConfig;
	
	/*初始化引脚功能为I2C.*/
	//GPIO_SetFunc(I2C0_SCL_PORT, I2C0_SCL_PIN, GPIO_FUN3);
	//GPIO_SetFunc(I2C0_SDA_PORT, I2C0_SDA_PIN, GPIO_FUN3);
	
	/*清零结构体变量.*/
	memset(&i2cConfig, 0x00, sizeof(i2cConfig));
	
	/*无论是主机还是从机模式都需要配置的参数.*/
	i2cConfig.mode				= I2C_MASTER;/*设置主从机模式.*/
	i2cConfig.extAddrEn			= DISABLE;/*10bit扩展地址禁能.*/
	i2cConfig.dmaRxEn			= DISABLE;/*设置DMA接收数据.*/
	i2cConfig.dmaTxEn			= DISABLE;/*设置DMA发送数据.*/
	i2cConfig.interruptEn		= DISABLE;/*I2C中断,BND/SAMF/ARBLOST.*/
	i2cConfig.nackInterruptEn	= DISABLE;/*NACK中断.*/
	i2cConfig.ssInterruptEn		= DISABLE;/*总线start或stop中断.*/
	i2cConfig.i2cEn				= ENABLE;/*使能模块.*/
	i2cConfig.callBack			= NULL;/*中断回调函数.*/
	
	/*主机模式需要配置的参数,配置成从机模式可忽略.*/
	i2cConfig.masterConfig.sampleCnt = 9;/*设置波特率为100Kbps,bandrate=(24M/(10*12*2))=100Kbps.*/
	i2cConfig.masterConfig.stepCnt	 = 11;
	i2cConfig.masterConfig.ARBEn 	 = ENABLE;/*设置主机仲裁功能.*/
	i2cConfig.masterConfig.SYNCEn	 = ENABLE;/*设置主机SCL同步功能.*/
	
	/*从机模式需要配置的参数,配置成主机模式可忽略.*/
	
	//i2cConfig.slaveConfig.slaveAddr		 = AT24C02_DEV_ADDR;/*从机地址.*/
	//i2cConfig.slaveConfig.slaveRangeAddr = 0;/*从机范围地址.*/
	//i2cConfig.slaveConfig.glitchFilterCnt= 0;/*毛刺过滤.*/
	//i2cConfig.slaveConfig.stretchEn		 = DISABLE;/*从机SCL延伸功能.*/
	//i2cConfig.slaveConfig.rangeAddrEn	 = DISABLE;/*禁能范围地址.*/
	//i2cConfig.slaveConfig.monitorEn		 = DISABLE;/*禁能从机监测功能.*/
	//i2cConfig.slaveConfig.generalCallEn	 = DISABLE;/*从机SCL广播地址.*/
	//i2cConfig.slaveConfig.wakeupEn		 = DISABLE;/*唤醒功能,仅从机时有效.*/
	//i2cConfig.slaveConfig.rxOFInterruptEn	= DISABLE;/*接收缓存溢出中断.*/
	//i2cConfig.slaveConfig.txUFInterruptEn	= DISABLE;/*发送缓存溢出中断.*/
	
	
	I2C_Init(I2C1, &i2cConfig);
	
}



static uint8_t isl1208_readbyte(uint8_t addr)
{
	uint8_t data;
	
	I2C_MasterTransmitPoll(I2C1, ISL1208_IIC_ADDR, &addr, 1, DISABLE);//发送读取地址
	I2C_MasterReceivePoll(I2C1, ISL1208_IIC_ADDR, &data, 1);//读取数据
	
	return data;
}


static void isl1208_writebyte(uint8_t addr, uint8_t data)
{
	uint8_t buffer[2];
	buffer[0] = addr;
	buffer[1] = data;
	
	I2C_MasterTransmitPoll(I2C1, ISL1208_IIC_ADDR, buffer, 2, ENABLE);//发送读取地址
}


void RTCx_SetTime(DateTime* pDateTime)
{

		uint8_t addr = 0x00;
		uint8_t buffer[8];
	
		pDateTime->year-=2000;		//年默认2000年开始
		if(pDateTime->year > 100) pDateTime->year = 0;
		pDateTime->week -= 1;
	
		//cfg = ht1382_readbyte(HT1382_CFG_Reg);
		buffer[0] = addr;
	
		buffer[1] = bin2bcd(pDateTime->second);
		buffer[2] = bin2bcd(pDateTime->minute);
		buffer[3] = bin2bcd(pDateTime->hour);
		buffer[3] |= 0x80;  //时   24小时模式
		buffer[4] = bin2bcd(pDateTime->day);
		buffer[5] = bin2bcd(pDateTime->month);
		buffer[6] = bin2bcd(pDateTime->year);
		buffer[7] = bin2bcd(pDateTime->week);
		
		isl1208_writebyte(ISL1208_CFG_Reg,0x90); //写控制寄存器、 开启写使能、暂停时钟晶振、状态自动复位
		
		I2C_MasterTransmitPoll(I2C1, ISL1208_IIC_ADDR, buffer, 8, ENABLE);//发送读取地址
		
		printf("RTC_SetTime end \r\n");
	
}

static void RTCx_GetTime(void)
{
	
	uint8_t addr = 0x00;
	uint8_t data[7];
	
	I2C_MasterTransmitPoll(I2C1, ISL1208_IIC_ADDR, &addr, 1, DISABLE);//发送读取地址
	I2C_MasterReceivePoll(I2C1, ISL1208_IIC_ADDR, data, 7);//读取数据
	
	data[2] = 0x7F&data[2];
	

	//BCD码转十进制
	g_dateTime.second  = bcd2bin(data[0]);
	g_dateTime.minute  = bcd2bin(data[1]);
	g_dateTime.hour = bcd2bin(data[2]);
	g_dateTime.day  = bcd2bin(data[3]);
	g_dateTime.month  = bcd2bin(data[4]);
	g_dateTime.year = bcd2bin(data[5])+2000;
	g_dateTime.week = bcd2bin(data[6])+1;	
	
}


void RTCx_UpdateTime(void)
{
	RTCx_GetTime();
	
}


void RTCx_PrintDateTime(void)
{
	RTCx_GetTime();
	printf("DateTime:[%d][%d][%d] [%d][%d][%d] week[%d] \r\n",g_dateTime.year, g_dateTime.month, g_dateTime.day, g_dateTime.hour, g_dateTime.minute, g_dateTime.second, g_dateTime.week);

}


/*
*********************************************************************************************************
*	函 数 名: void DS1307_Init_Time(void)
*	功能说明: 第一次上电时，需要初始化时间，初始化一次后就不必重复初始化
*	形    参：无
*	返 回 值: 无
*********************************************************************************************************
*/
void RTCx_Init(void)
{
	
	I2C_ParaInit();

	if(FLAG_VAL != isl1208_readbyte(FLAG_Reg))//如果未初始化，执行初始化时间
	{
			g_dateTime.year = 2024;
			g_dateTime.month = 7;
			g_dateTime.day = 12;
			g_dateTime.hour = 11;
			g_dateTime.minute = 56;
			g_dateTime.second = 20;
			g_dateTime.week = 5;
		
			RTCx_SetTime(&g_dateTime);
		
			isl1208_writebyte(FLAG_Reg, FLAG_VAL);
		
	}	else{
		
			RTCx_PrintDateTime();
		
	}
	
	
}


void RTCx_DeInit(void)
{

	
}