/*----------------------------------------------------------------------------------------------------
	INCLUDE HEADE FILES
----------------------------------------------------------------------------------------------------*/
#include    "Platform.h"
#include    "bsp_register_macro.h"

#define  TH25D_20UA   //紫光青藤的flash 型号
/*----------------------------------------------------------------------------------------------------
    SPI 	COMMAND
-----------------------------------------------------------------------------------------------------*/
#define		CMD_READ_DATA			0x03
#define		CMD_READ_STATUS			0x05
#define		CMD_CHIP_ERASE			0xc7
#define		CMD_WRITE_ENABLE		0x06
#define		CMD_PAGE_PROGRAM		0x02
#define		CMD_BLOCK_ERASE			0xD8
#define		CMD_SECTOR_ERASE		0x20
#define		CMD_PAGE_ERASE		    0x81
#define		CMD_RELEASE_PWRDWN	    0xAB
#define		CMD_PWRDWN	            0xB9
#define		CMD_ID                  0x4B 
#define		PACKET_FULL_LEN			FLASH_PAGE_SIZE

/*-------------------------------------------------------------------
NOTE: bsp_spi0_flash文件下的变量要放在SHRAM0区域.
-------------------------------------------------------------------*/
//uint8_t		__attribute__((aligned(4)))	txbuff[(PACKET_FULL_LEN+4)];
//uint8_t		__attribute__((aligned(4)))	rxbuff[(PACKET_FULL_LEN+4)];
uint8_t		__attribute__((at(127*1024+0x10000000)))	txbuff[(PACKET_FULL_LEN+4)];
uint8_t		__attribute__((at(127*1024+512+0x10000000)))	rxbuff[(PACKET_FULL_LEN+4)];

/* ---------------------------------------------------------------------------------------------------
- 函数名称: Init_spi_master
- 函数功能: 初始化spi主模式
- 创建日期: 2015-09-14
----------------------------------------------------------------------------------------------------*/
void	Init_spi_master(uint32_t ch, uint32_t freq)
{
    uint32_t    val;
    
    __write_hw_reg32(CPR_SPIx_MCLK_CTL(ch), 0x110010);//1分频			//- spi(x)_mclk = 32Mhz(When TXCO=32Mhz).
    __write_hw_reg32(CPR_CTLAPBCLKEN_GRCTL , (0x1000100<<ch)); 	//- 打开spi(x) pclk.
    __read_hw_reg32(CPR_SSI_CTRL, val);
    val |= (ch==0)? 0x01: 0x30;
    __write_hw_reg32(CPR_SSI_CTRL, val);
	
    __write_hw_reg32(SSIx_EN(ch), 0x00);

    __write_hw_reg32(SSIx_IE(ch), 0x00);
    __write_hw_reg32(SSIx_CTRL0(ch) , 0x0F);					/* 16bit SPI data */

    __write_hw_reg32(SSIx_SE(ch), 0x01);
    __write_hw_reg32(SSIx_BAUD(ch), freq);						//- spix_mclk 分频.

    __write_hw_reg32(SSIx_RXFTL(ch), 0x00);
    __write_hw_reg32(SSIx_TXFTL(ch), 0x00);

    //__write_hw_reg32(SSIx_EN(ch) , 0x01);
}
/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_Read_128bitsID
- 函数功能: 读取flash  128bits ID 读独立的ID序列 该指令可以读取一个芯片已经固化的只读的128位ID
- 创建日期: 2015-09-14
----------------------------------------------------------------------------------------------------*/
void spi_flash_Read_128bitsID(uint8_t *buff)
{
    while(spi_flash_wait_till_ready());
    uint32_t    iWK = 0;
    memset(txbuff,0,PACKET_FULL_LEN+4);
    memset(rxbuff,0,PACKET_FULL_LEN+4);
	txbuff[1] = CMD_ID;
    
    __write_hw_reg32(SSI0_EN , 0x00);
    __write_hw_reg32(SSI0_DMAS , 0x03);
    __write_hw_reg32(SSI0_DMATDL, 0x4);          //-
    __write_hw_reg32(SSI0_DMARDL, 0x4);          //- 1/4 FIFO
    __write_hw_reg32(SSI0_EN , 0x01);

	//- RX Channel
	__write_hw_reg32(DMAS_CHx_SAR(10) , 0x40013060);
    __write_hw_reg32(DMAS_CHx_DAR(10) , (uint32_t)rxbuff);
    __write_hw_reg32(DMAS_CHx_CTL1(10) ,((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(10) ,24);
    __write_hw_reg32(DMAS_EN , 10);

		//- TX Channel
	__write_hw_reg32(DMAS_CHx_SAR(2) , (uint32_t)txbuff);
    __write_hw_reg32(DMAS_CHx_DAR(2) , 0x40013060);
    __write_hw_reg32(DMAS_CHx_CTL1(2) ,((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(2) ,24);//接收缓冲区首地址必须是4的倍数而且大小必须是四的倍数
    __write_hw_reg32(DMAS_EN , 2);

    do	{
    	__read_hw_reg32(DMAS_INT_RAW , iWK);
    }while((iWK&0x404) != 0x404);

    __write_hw_reg32(DMAS_INT_RAW, 0x404);
    __write_hw_reg32(DMAS_CLR , 10);
    __write_hw_reg32(DMAS_CLR , 2);
    __write_hw_reg32(SSI0_EN , 0x00);  
   
    for(int i=0;i<12;i++)
    {
        uint8_t temp=rxbuff[2*i+1];
        rxbuff[2*i+1]=rxbuff[2*i];
        rxbuff[2*i]=temp;
    }
    for(int i=0;i<16;i++)
          buff[i]=rxbuff[5+i]; 

}

/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_Read_Page
- 函数功能: 从SPI FLASH中读取一页数据到指定地址
- 创建日期: 2015-09-14
----------------------------------------------------------------------------------------------------*/
void	spi_flash_Read_Page(uint32_t	PageAddR, uint8_t *buff)
{
	uint32_t	addr = PageAddR;
	uint32_t    iWK = 0;
    
	txbuff[0] = (uint8_t)(addr>>16);
	txbuff[1] = CMD_READ_DATA;
	txbuff[2] = (uint8_t)(addr);
	txbuff[3] = (uint8_t)(addr>>8);		

    __write_hw_reg32(SSI0_EN , 0x00);
    __write_hw_reg32(SSI0_DMAS , 0x03);
    __write_hw_reg32(SSI0_DMATDL, 0x4);          //-
    __write_hw_reg32(SSI0_DMARDL, 0x4);          //- 1/4 FIFO
    __write_hw_reg32(SSI0_EN , 0x01);

	//- RX Channel
	__write_hw_reg32(DMAS_CHx_SAR(10) , 0x40013060);
    __write_hw_reg32(DMAS_CHx_DAR(10) , (uint32_t)buff);
    __write_hw_reg32(DMAS_CHx_CTL1(10) ,((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(10) ,(PACKET_FULL_LEN+4));
    __write_hw_reg32(DMAS_EN , 10);

		//- TX Channel
	__write_hw_reg32(DMAS_CHx_SAR(2) , (uint32_t)txbuff);
    __write_hw_reg32(DMAS_CHx_DAR(2) , 0x40013060);
    __write_hw_reg32(DMAS_CHx_CTL1(2) ,((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(2) ,(PACKET_FULL_LEN+4));
    __write_hw_reg32(DMAS_EN , 2);

    do	{
    	__read_hw_reg32(DMAS_INT_RAW , iWK);
    }while((iWK&0x404) != 0x404);

    __write_hw_reg32(DMAS_INT_RAW, 0x404);
    __write_hw_reg32(DMAS_CLR , 10);
    __write_hw_reg32(DMAS_CLR , 2);
    __write_hw_reg32(SSI0_EN , 0x00);    
}

/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_wait_till_ready
- 函数功能: 检查spi flash处于ready状态
- 创建日期: 2015-09-14
----------------------------------------------------------------------------------------------------*/
uint8_t		spi_flash_wait_till_ready (void)
{
    uint16_t	cmd = (CMD_READ_STATUS<<8);
    uint32_t	iWK = 0;
    uint16_t	dWK = 0;

    __write_hw_reg32(SSI0_EN , 0x00);
    __write_hw_reg32(SSI0_DMAS , 0x00);			/* turn off dma*/
    __write_hw_reg32(SSI0_DMATDL, 0x0);      	//-
    __write_hw_reg32(SSI0_DMARDL, 0x0);      	//-
    __write_hw_reg32(SSI0_EN , 0x01);

    __write_hw_reg32(SSI0_DATA , cmd);

    do	{
        	__read_hw_reg32(SSI0_STS, iWK);
    }while((iWK&0x05) != 0x04);

    __read_hw_reg32(SSI0_DATA , dWK);

    __write_hw_reg32(SSI0_EN , 0x00);    
    
    return	(uint8_t)(dWK&0x01);
}

/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_chip_erase
- 函数功能: 擦除整个芯片的内容
- 创建日期: 2015-09-16
----------------------------------------------------------------------------------------------------*/
void	spi_flash_chip_erase(void)
{
	uint32_t	bWk, cWk;

    __read_hw_reg32(SSI0_CTRL0 , bWk);

    __write_hw_reg32(SSI0_EN , 0x00);
    __write_hw_reg32(SSI0_DMAS , 0x00);
    __write_hw_reg32(SSI0_CTRL0 , 0x07);				/* 8bit SPI data */
    __write_hw_reg32(SSI0_EN , 0x01);


    __write_hw_reg32(SSI0_DATA, CMD_CHIP_ERASE);

    do	{
        	__read_hw_reg32(SSI0_STS, cWk);
    }while((cWk&0x05) != 0x04);


    __write_hw_reg32(SSI0_EN , 0x00);
    __write_hw_reg32(SSI0_CTRL0 , bWk);
}


/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_erase_block_num
- 函数功能: 计算需擦除block的数目
- 创建日期: 2015-09-16
----------------------------------------------------------------------------------------------------*/
uint32_t	spi_flash_block_num(uint32_t	size)
{
		uint32_t	blk = 0;

		blk = size/FLASH_BLOCK_SIZE;

		if(size % FLASH_BLOCK_SIZE) blk++;

		return blk;
}

/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_block_erase
- 函数功能: 擦除芯片指定block的内容
- 创建日期: 2015-09-16
----------------------------------------------------------------------------------------------------*/
void	spi_flash_block_erase(uint32_t	blknum)
{
    uint32_t	addr = (blknum*FLASH_BLOCK_SIZE);
    uint32_t  	iWK = 0;

    txbuff[0] = (uint8_t)(addr>>16);
    txbuff[1] = CMD_BLOCK_ERASE;
    txbuff[2] = (uint8_t)(addr);
    txbuff[3] = (uint8_t)(addr>>8);

    __write_hw_reg32(SSI0_EN , 0x00);
    __write_hw_reg32(SSI0_DMAS , 0x03);
    __write_hw_reg32(SSI0_DMATDL, 0x4);          //-
    __write_hw_reg32(SSI0_DMARDL, 0x4);          //- 1/4 FIFO
    __write_hw_reg32(SSI0_EN , 0x01);

		//- RX Channel
	__write_hw_reg32(DMAS_CHx_SAR(10) , 0x40013060);
    __write_hw_reg32(DMAS_CHx_DAR(10) , (uint32_t)rxbuff);
    __write_hw_reg32(DMAS_CHx_CTL1(10) ,((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(10) ,4);
    __write_hw_reg32(DMAS_EN , 10);

		//- TX Channel
	__write_hw_reg32(DMAS_CHx_SAR(2) , (uint32_t)txbuff);
    __write_hw_reg32(DMAS_CHx_DAR(2) , 0x40013060);
    __write_hw_reg32(DMAS_CHx_CTL1(2) ,((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(2) ,4);
    __write_hw_reg32(DMAS_EN , 2);

    do	{
    	__read_hw_reg32(DMAS_INT_RAW , iWK);
    }while((iWK&0x404) != 0x404);

    __write_hw_reg32(DMAS_INT_RAW, 0x404);
    __write_hw_reg32(DMAS_CLR , 10);
    __write_hw_reg32(DMAS_CLR , 2);
    __write_hw_reg32(SSI0_EN , 0x00);
    
}
/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_write_enable
- 函数功能: 使能对芯片的写操作
- 创建日期: 2015-09-16
----------------------------------------------------------------------------------------------------*/
void	spi_flash_write_enable(void)
{
    uint32_t	bWk, cWk;

    __read_hw_reg32(SSI0_CTRL0 , bWk);

    __write_hw_reg32(SSI0_EN, 0x00);
    __write_hw_reg32(SSI0_DMAS , 0x00);
    __write_hw_reg32(SSI0_CTRL0 , 0x07);				/* 8bit SPI data */
    __write_hw_reg32(SSI0_EN, 0x01);


    __write_hw_reg32(SSI0_DATA, CMD_WRITE_ENABLE);

    do	{
        	__read_hw_reg32(SSI0_STS, cWk);
    }while((cWk&0x05) != 0x04);


    __write_hw_reg32(SSI0_EN, 0x00);
    __write_hw_reg32(SSI0_CTRL0, bWk);

}

/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_write_page
- 函数功能: 向SPI FLASH指定地址写入一页数据
- 创建日期: 2015-09-16
----------------------------------------------------------------------------------------------------*/
void	spi_flash_write_page(uint32_t	PageAddR, uint8_t *buff)
{
    uint32_t	addr = PageAddR;
    uint32_t    iWK = 0;
    uint32_t	i;

    for(i=0; i<PACKET_FULL_LEN; i++)
    {
        txbuff[i+4] = buff[i];
    }

    txbuff[0] = (uint8_t)(addr>>16);
    txbuff[1] = CMD_PAGE_PROGRAM;
    txbuff[2] = (uint8_t)(addr);
    txbuff[3] = (uint8_t)(addr>>8);

    __write_hw_reg32(SSI0_EN , 0x00);
    __write_hw_reg32(SSI0_DMAS , 0x03);
    __write_hw_reg32(SSI0_DMATDL, 0x4);          //-
    __write_hw_reg32(SSI0_DMARDL, 0x4);          //- 1/2FIFO
    __write_hw_reg32(SSI0_EN , 0x01);

		//- RX Channel
	__write_hw_reg32(DMAS_CHx_SAR(10), 0x40013060);
    __write_hw_reg32(DMAS_CHx_DAR(10), (uint32_t)rxbuff);
    __write_hw_reg32(DMAS_CHx_CTL1(10),((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(10),(PACKET_FULL_LEN+4));
    __write_hw_reg32(DMAS_EN, 10);

		//- TX Channel
	__write_hw_reg32(DMAS_CHx_SAR(2), (uint32_t)txbuff);
    __write_hw_reg32(DMAS_CHx_DAR(2), 0x40013060);
    __write_hw_reg32(DMAS_CHx_CTL1(2),((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(2),(PACKET_FULL_LEN+4));
    __write_hw_reg32(DMAS_EN, 2);

    do	{
    	__read_hw_reg32(DMAS_INT_RAW , iWK);
    }while((iWK&0x404) != 0x404);

    __write_hw_reg32(DMAS_INT_RAW, 0x404);
    __write_hw_reg32(DMAS_CLR , 10);
    __write_hw_reg32(DMAS_CLR , 2);
    __write_hw_reg32(SSI0_EN , 0x00);
    
}
#ifdef TH25D_20UA  //使用紫光青藤flash
/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_page_erase   
- 函数功能: 擦除芯片指定page的内容 ---紫光青藤flash有此功能，GD兆易 和 MD普软 flash没有此功能
- 创建日期: 2016-06-15
----------------------------------------------------------------------------------------------------*/
void	spi_flash_page_erase(uint32_t	no)
{
    uint32_t	addr = (no*FLASH_PAGE_SIZE);
    uint32_t  	iWK = 0;

    txbuff[0] = (uint8_t)(addr>>16);
    txbuff[1] = CMD_PAGE_ERASE;
    txbuff[2] = (uint8_t)(addr);
    txbuff[3] = (uint8_t)(addr>>8);

    __write_hw_reg32(SSI0_EN, 0x00);
    __write_hw_reg32(SSI0_DMAS, 0x03);
    __write_hw_reg32(SSI0_DMATDL, 0x4);          //-
    __write_hw_reg32(SSI0_DMARDL, 0x4);          //- 1/4 FIFO
    __write_hw_reg32(SSI0_EN, 0x01);

    //- RX Channel
    __write_hw_reg32(DMAS_CHx_SAR(10), 0x40013060);
    __write_hw_reg32(DMAS_CHx_DAR(10), (uint32_t)rxbuff);
    __write_hw_reg32(DMAS_CHx_CTL1(10),((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(10),4);
    __write_hw_reg32(DMAS_EN , 10);

    //- TX Channel
    __write_hw_reg32(DMAS_CHx_SAR(2), (uint32_t)txbuff);
    __write_hw_reg32(DMAS_CHx_DAR(2), 0x40013060);
    __write_hw_reg32(DMAS_CHx_CTL1(2),((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(2),4);
    __write_hw_reg32(DMAS_EN, 2);

    do	{
    	__read_hw_reg32(DMAS_INT_RAW , iWK);
    }while((iWK&0x404) != 0x404);

    __write_hw_reg32(DMAS_INT_RAW, 0x404);
    __write_hw_reg32(DMAS_CLR, 10);
    __write_hw_reg32(DMAS_CLR, 2);
    __write_hw_reg32(SSI0_EN, 0x00);    
}
#else
/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_sector_erase
- 函数功能: 擦除芯片指定sector的内容
- 创建日期: 2016-06-15
----------------------------------------------------------------------------------------------------*/
void	spi_flash_sector_erase(uint32_t	no)
{
    uint32_t	addr = (no*FLASH_SECTOR_SIZE);
    uint32_t  	iWK = 0;

    txbuff[0] = (uint8_t)(addr>>16);
    txbuff[1] = CMD_SECTOR_ERASE;
    txbuff[2] = (uint8_t)(addr);
    txbuff[3] = (uint8_t)(addr>>8);

    __write_hw_reg32(SSI0_EN, 0x00);
    __write_hw_reg32(SSI0_DMAS, 0x03);
    __write_hw_reg32(SSI0_DMATDL, 0x4);          //-
    __write_hw_reg32(SSI0_DMARDL, 0x4);          //- 1/4 FIFO
    __write_hw_reg32(SSI0_EN, 0x01);

    //- RX Channel
    __write_hw_reg32(DMAS_CHx_SAR(10), 0x40013060);
    __write_hw_reg32(DMAS_CHx_DAR(10), (uint32_t)rxbuff);
    __write_hw_reg32(DMAS_CHx_CTL1(10),((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(10),4);
    __write_hw_reg32(DMAS_EN , 10);

    //- TX Channel
    __write_hw_reg32(DMAS_CHx_SAR(2), (uint32_t)txbuff);
    __write_hw_reg32(DMAS_CHx_DAR(2), 0x40013060);
    __write_hw_reg32(DMAS_CHx_CTL1(2),((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(2),4);
    __write_hw_reg32(DMAS_EN, 2);

    do	{
    	__read_hw_reg32(DMAS_INT_RAW , iWK);
    }while((iWK&0x404) != 0x404);

    __write_hw_reg32(DMAS_INT_RAW, 0x404);
    __write_hw_reg32(DMAS_CLR, 10);
    __write_hw_reg32(DMAS_CLR, 2);
    __write_hw_reg32(SSI0_EN, 0x00);    
}
#endif
/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_Release_powerdown
- 函数功能: SPI_FLASH Exit Power-Down
- 创建日期: 2016-10-24
----------------------------------------------------------------------------------------------------*/
void	spi_flash_Release_powerdown(void)
{
	uint32_t	bWk, cWk;

    __read_hw_reg32(SSI0_CTRL0, bWk);

    __write_hw_reg32(SSI0_EN, 0x00);
    __write_hw_reg32(SSI0_DMAS, 0x00);
    __write_hw_reg32(SSI0_CTRL0, 0x07);				/* 8bit SPI data */
    __write_hw_reg32(SSI0_EN, 0x01);


    __write_hw_reg32(SSI0_DATA, CMD_RELEASE_PWRDWN);
    do	{
        	__read_hw_reg32(SSI0_STS, cWk);
    }while((cWk&0x05) != 0x04);

    __write_hw_reg32(SSI0_EN, 0x00);
    __write_hw_reg32(SSI0_CTRL0, bWk);

}

/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_powerdown
- 函数功能: SPI_FLASH Enter Power-Down
- 创建日期: 2016-11-07
----------------------------------------------------------------------------------------------------*/
void	spi_flash_Enter_powerdown(void)
{
	uint32_t	bWk, cWk;

    __read_hw_reg32(SSI0_CTRL0, bWk);

    __write_hw_reg32(SSI0_EN, 0x00);
    __write_hw_reg32(SSI0_DMAS, 0x00);
    __write_hw_reg32(SSI0_CTRL0, 0x07);				/* 8bit SPI data */
    __write_hw_reg32(SSI0_EN, 0x01);


    __write_hw_reg32(SSI0_DATA, CMD_PWRDWN);
    do	{
        	__read_hw_reg32(SSI0_STS, cWk);
    }while((cWk&0x05) != 0x04);


    __write_hw_reg32(SSI0_EN, 0x00);
    __write_hw_reg32(SSI0_CTRL0, bWk);

}    

/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi1_write_read_uint16
- 函数功能: spi1 向外发送两个字节, 并读回两个字节
- 创建日期: 2016-11-07
----------------------------------------------------------------------------------------------------*/
uint16_t    spi1_write_read_uint16(uint16_t    val)
{
    uint32_t	cWk;
    
    __write_hw_reg32(SSI1_EN, 0x00);
    __write_hw_reg32(SSI1_DMAS, 0x00);
    __write_hw_reg32(SSI1_EN, 0x01);

    __write_hw_reg32(SSI1_DATA, val);

    do	{
        __read_hw_reg32(SSI1_STS, cWk);
    }while((cWk&0x05) != 0x4);
    
    __read_hw_reg32(SSI1_DATA, val);
    
    __write_hw_reg32(SSI1_EN, 0x00);    
    
    return	(val);    
}

/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi1_write_read_stream
- 函数功能: spi1 向外发送并读回长度为Length的一串16BIT宽度数据.
- 创建日期: 2016-11-07
----------------------------------------------------------------------------------------------------*/
void    spi1_write_read_stream(uint16_t *input, uint16_t *output, uint16_t length)
{ 
    uint32_t    iwk;
    __write_hw_reg32(SSI1_EN, 0x00);
    __write_hw_reg32(SSI1_DMAS, 0x03);
    __write_hw_reg32(SSI1_DMATDL, 0x2);          
    __write_hw_reg32(SSI1_DMARDL, 0x2);              
    __write_hw_reg32(SSI1_EN, 0x01);

    //- RX Channel
    __write_hw_reg32(DMAS_CHx_SAR(11), 0x40014060);
    __write_hw_reg32(DMAS_CHx_DAR(11), (uint32_t)output);
    __write_hw_reg32(DMAS_CHx_CTL1(11),((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(11),(length<<1));
    __write_hw_reg32(DMAS_EN, 11);

    //- TX Channel
    __write_hw_reg32(DMAS_CHx_SAR(3), (uint32_t)input);
    __write_hw_reg32(DMAS_CHx_DAR(3), 0x40014060);
    __write_hw_reg32(DMAS_CHx_CTL1(3),((2 << 8)|  1));
    __write_hw_reg32(DMAS_CHx_CTL0(3),(length<<1));
    __write_hw_reg32(DMAS_EN, 3);

    do	{
    	__read_hw_reg32(DMAS_INT_RAW, iwk);
    }while((iwk&0x808) != 0x808);

    __write_hw_reg32(DMAS_INT_RAW, 0x808);
    __write_hw_reg32(DMAS_CLR, 11);
    __write_hw_reg32(DMAS_CLR, 3);
        
    __write_hw_reg32(SSI1_EN, 0x00);
   
}


#ifndef  TH25D_20UA

/******************************************2019.04.08新增******************************************/
/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_Read
- 函数功能: 在指定的地址开始读取指定长度的数据
- 创建日期: 2019.04.08
- 作    者:陈俊伟
----------------------------------------------------------------------------------------------------*/
void	spi_flash_Read(uint32_t	ReadAddR, uint8_t *buff,uint16_t  ReadLength)
{
	
    uint32_t PagePos=ReadAddR/FLASH_PAGE_SIZE;//页地址
	uint16_t PageOff=ReadAddR%FLASH_PAGE_SIZE;//页偏移地址
	uint16_t i=0,PageMain=FLASH_PAGE_SIZE-PageOff;//页剩余地址
    if(ReadLength<=PageMain)  PageMain=ReadLength; 
	while(1)
	{   	
        spi_flash_Read_Page(PagePos*FLASH_PAGE_SIZE,rxbuff);
		for(i=0;i<PageMain;i++)
		{
			buff[i]=rxbuff[PageOff+i+4];	  
		}
        if(ReadLength==PageMain) break;
		else
		{
			PagePos++;
			PageOff=0;
			buff+=PageMain;
            ReadAddR+=PageMain;
			ReadLength-=PageMain;
			if(ReadLength>FLASH_PAGE_SIZE) PageMain=FLASH_PAGE_SIZE;
			else PageMain=ReadLength;
		}
    }
		
  
}
/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_Read_Sector
- 函数功能: 从SPI FLASH中读取一个扇区数据到指定地址
- 创建日期: 2019.04.08
- 作    者:陈俊伟
----------------------------------------------------------------------------------------------------*/
void spi_flash_Read_Sector(uint32_t	ReadAddR, uint8_t *buff)
{
	uint8_t i=0,j=FLASH_SECTOR_SIZE/FLASH_PAGE_SIZE;
    uint16_t k=0;
	for(i=0;i<j;i++)
	{
		spi_flash_Read_Page(ReadAddR,rxbuff);
		for(k=0;k<FLASH_PAGE_SIZE;k++)
		{
			*buff=rxbuff[4+k];
			buff++;
		}
		ReadAddR+=FLASH_PAGE_SIZE;
	}
}
/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_write_Sector
- 函数功能: 向SPI FLASH指定扇区写入数据
- 创建日期: 2019.04.08
- 作    者:陈俊伟
---------------------------------------------------------------*/
void	spi_flash_write_Sector(uint32_t	WriteAddR, uint8_t *buff)
{
	uint8_t i=0,j=FLASH_SECTOR_SIZE/FLASH_PAGE_SIZE;
	for(i=0;i<j;i++)
	{
        spi_flash_write_enable();
		spi_flash_write_page(WriteAddR,buff);
        while(spi_flash_wait_till_ready());
		WriteAddR+=FLASH_PAGE_SIZE;
		buff+=FLASH_PAGE_SIZE;	
	}
}
/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_write
- 函数功能: 在指定的地址开始写入指定长度的数据
- 创建日期: 2019.04.08
- 作    者:陈俊伟
----------------------------------------------------------------------------------------------------*/

static volatile  uint8_t FlashBuf[FLASH_SECTOR_SIZE];
void	spi_flash_write(uint32_t	WriteAddR, uint8_t *buff,uint16_t WriteLength)
{
	uint32_t sectorpos;//扇区地址
	uint16_t sectoroff;//扇区偏移地址
	uint16_t sectorremain;//扇区剩余地址	   
 	uint16_t i,j;
	sectorpos=WriteAddR/FLASH_SECTOR_SIZE;
	sectoroff=WriteAddR%FLASH_SECTOR_SIZE;
	sectorremain=FLASH_SECTOR_SIZE-sectoroff;	
	if(WriteLength<=sectorremain)  sectorremain=WriteLength; 	
	while(1)
	{   
		spi_flash_Read_Sector(sectorpos*FLASH_SECTOR_SIZE,FlashBuf);        
		for(i=0;i<sectorremain;i++)
		{
			FlashBuf[sectoroff+i]=buff[i];	  
		}		
		spi_flash_write_enable();
		spi_flash_sector_erase(sectorpos);
		while(spi_flash_wait_till_ready());		
		spi_flash_write_Sector(sectorpos*FLASH_SECTOR_SIZE,FlashBuf);		
		if(WriteLength==sectorremain) break;
		else
		{
			sectorpos++;
			sectoroff=0;
			buff+=sectorremain;
            WriteAddR+=sectorremain;
			WriteLength-=sectorremain;
			if(WriteLength>FLASH_SECTOR_SIZE) sectorremain=FLASH_SECTOR_SIZE;
			else sectorremain=WriteLength;
		}
		
	}
}
#else  //使用紫光青藤flash
/******2020.10.14新增 以下接口目前适用于紫光青藤flash 以下接口目的是为省掉读写扇区所需要的大的缓冲区********/
/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_Read
- 函数功能: 在指定的地址开始读取指定长度的数据
- 创建日期: 2020.10.14
----------------------------------------------------------------------------------------------------*/
void spi_flash_Read(uint32_t	ReadAddR, uint8_t *buff,uint16_t  ReadLength)
{
    uint32_t PagePos=ReadAddR/FLASH_PAGE_SIZE;//页地址
	uint16_t PageOff=ReadAddR%FLASH_PAGE_SIZE;//页偏移地址
	uint16_t i=0,PageMain=FLASH_PAGE_SIZE-PageOff;//页剩余地址
    if(ReadLength<=PageMain)  PageMain=ReadLength; 
	while(1)
	{   	
        spi_flash_Read_Page(PagePos*FLASH_PAGE_SIZE,rxbuff);
		for(i=0;i<PageMain;i++)
		{
			buff[i]=rxbuff[PageOff+i+4];	  
		}
        if(ReadLength==PageMain) break;
		else
		{
			PagePos++;
			PageOff=0;
			buff+=PageMain;
            ReadAddR+=PageMain;
			ReadLength-=PageMain;
			if(ReadLength>FLASH_PAGE_SIZE) PageMain=FLASH_PAGE_SIZE;
			else PageMain=ReadLength;
		}
    }
		
  
}
/* ---------------------------------------------------------------------------------------------------
- 函数名称: spi_flash_write
- 函数功能: 在指定的地址开始写入指定长度的数据
- 创建日期:2020.10.14
 ----------------------------------------------------------------------------------------------------*/
void	spi_flash_write(uint32_t	WriteAddR, uint8_t *buff,uint16_t WriteLength)
{
	uint8_t FlashBuf[FLASH_PAGE_SIZE ];
	uint32_t PagePos=WriteAddR/FLASH_PAGE_SIZE;//页地址
	uint16_t PageOff=WriteAddR%FLASH_PAGE_SIZE;//页偏移地址
	uint16_t i=0,PageMain=FLASH_PAGE_SIZE-PageOff;//页剩余地址
    if(WriteLength<=PageMain)  PageMain=WriteLength; 
	while(1)
	{   	
        spi_flash_Read_Page(PagePos*FLASH_PAGE_SIZE,rxbuff);
		for(i=0;i<FLASH_PAGE_SIZE;i++) FlashBuf[i]=rxbuff[i+4];
		for(i=0;i<PageMain;i++) FlashBuf[PageOff+i]=buff[i];	  	
		spi_flash_write_enable();
		spi_flash_page_erase(PagePos);
		while(spi_flash_wait_till_ready());	
        spi_flash_write_enable();
		spi_flash_write_page(PagePos*FLASH_PAGE_SIZE,FlashBuf );
        while(spi_flash_wait_till_ready());			
        if(WriteLength==PageMain) break;
		else
		{
			PagePos++;
			PageOff=0;
			buff+=PageMain;
            WriteAddR+=PageMain;
			WriteLength-=PageMain;
			if(WriteLength>FLASH_PAGE_SIZE) PageMain=FLASH_PAGE_SIZE;
			else PageMain=WriteLength;
		}
    }
}

#endif
/* END */


#if  0

#define SPI_CS_HIGHT     	    while(((*(SSI1_STS))&0x05)!=0x04);gpio_output_high(0)
#define SPI_CS_LOW   		    while(((*(SSI1_STS))&0x05)!=0x04);gpio_output_low(0)

void	Init_spi1_mode3_master(uint32_t freq)
{
    uint32_t    val;
    
    __write_hw_reg32(CPR_SPIx_MCLK_CTL(1), 0x110010);//1分频			//- spi(x)_mclk = 32Mhz(When TXCO=32Mhz).
    __write_hw_reg32(CPR_CTLAPBCLKEN_GRCTL , (0x1000100<<1)); 	//- 打开spi(x) pclk.
    __read_hw_reg32(CPR_SSI_CTRL, val);
    val |= (1==0)? 0x01: 0x30;
    __write_hw_reg32(CPR_SSI_CTRL, val);
	
    __write_hw_reg32(SSIx_EN(1), 0x00);

    __write_hw_reg32(SSIx_IE(1), 0x00);
    __write_hw_reg32(SSIx_CTRL0(1) , 0xC7);					/* 8bit SPI data */

    __write_hw_reg32(SSIx_SE(1), 0x01);
    __write_hw_reg32(SSIx_BAUD(1), freq);						//- spix_mclk 分频.

    __write_hw_reg32(SSIx_RXFTL(1), 0x00);
    __write_hw_reg32(SSIx_TXFTL(1), 0x00);

    __write_hw_reg32(SSIx_EN(1) , 0x01);
    
    //cs线由GPIO0手动拉低拉高 手动模拟
    gpio_mux_ctl(0,0);gpio_fun_inter(0,0);gpio_fun_sel(0,0);gpio_direction_output(0);gpio_output_high(0);
    //sclk(GPIO1)
    gpio_mux_ctl(1,0);gpio_fun_inter(1,0);gpio_fun_sel(1,14);
    //miso(GPIO4)
    gpio_mux_ctl(4,0);gpio_fun_inter(4,0);gpio_fun_sel(4,16);
    //mosi(GPIO5)
    gpio_mux_ctl(5,0);gpio_fun_inter(5,0);gpio_fun_sel(5,17);
    
    
}

uint8_t SPI_Send_Dat(uint8_t dat)
{   
	__write_hw_reg32(SSI1_DATA, dat);
    while(((*(SSI1_STS))&0xC)!=0xC);
    return (*(SSI1_DATA));
}

uint8_t SPI_Receiver_Dat(void)
{
    __write_hw_reg32(SSI1_DATA, 0xFF);
    while(((*(SSI1_STS))&0xC)!=0xC);
    return (*(SSI1_DATA));
}

void w25qxx_Release_powerdown(void)
{
    SPI_CS_LOW;
    SPI_Send_Dat(0xAB);
    SPI_CS_HIGHT;
}

void w25qxx_Enter_powerdown(void)
{
    SPI_CS_LOW;
    SPI_Send_Dat(0xB9);
    SPI_CS_HIGHT;
}

uint8_t W25QXX_ReadSR(void)   
{  
	uint8_t byte=0;   
	SPI_CS_LOW;                              //使能器件 
	SPI_Send_Dat(0x05);                 //发送读取状态寄存器命令   
	byte=SPI_Receiver_Dat();          //读取一个字节  
	SPI_CS_HIGHT;                            //取消片选     
    return byte;  
       
} 

void W25QXX_Write_SR(uint8_t sr)   
{   
	SPI_CS_LOW;                            //使能器件   
	SPI_Send_Dat(0x01);                 //发送写取状态寄存器命令    
	SPI_Send_Dat(sr);               	//写入一个字节  
	SPI_CS_HIGHT;                            //取消片选     	      
}   

#endif