luatos-soc-air105/bsp/air105/hal/core_spi.c

/*
 * Copyright (c) 2022 OpenLuat & AirM2M
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include "user.h"

#define HSPIM_CR0_CLEAR_MASK										((uint32_t)~0xFFEEFFFF)
#define HSPIM_CR0_MODE_SELECT_CLEAR_MASK							((uint32_t)~0x1C00)
#define HSPIM_CR1_CLEAR_MASK										((uint32_t)~0xFFFFF)
#define HSPIM_FCR_CLEAR_MASK										((uint32_t)~0x3F3F3F00)
#define HSPIM_DCR_RECEIVE_LEVEL_CLEAR_MASK							((uint32_t)~0x3F80)
#define HSPIM_DCR_TRANSMIT_LEVEL_CLEAR_MASK							((uint32_t)~0x7F)


#define HSPIM_CR0_PARAM_ENABLE_POS									(0x18)
#define HSPIM_CR0_PARAM_DMA_RECEIVE_ENABLE_POS						(0x14)
#define HSPIM_CR0_PARAM_DMA_TRANSMIT_ENABLE_POS						(0x10)
#define HSPIM_CR0_PARAM_INTERRPUT_RX_POS							(0x0F)
#define HSPIM_CR0_PARAM_INTERRPUT_TX_POS							(0x0E)
#define HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS						(0x0D)
#define HSPIM_CR0_PARAM_MODEL_SELECT_POS							(0x0A)
#define HSPIM_CR0_PARAM_FIRST_BIT_POS								(0x09)
#define HSPIM_CR0_PARAM_CPOL_POS									(0x08)
#define HSPIM_CR0_PARAM_CPHA_POS									(0x07)
#define HSPIM_CR0_PARAM_DIVIDE_ENABLE_POS							(0x02)
#define HSPIM_CR0_PARAM_TRANSMIT_ENABLE_POS							(0x01)
#define HSPIM_CR0_PARAM_BUSY_POS									(0x00)

#define HSPIM_CR1_PARAM_BAUDRATE_POS								(0x0A)
#define HSPIM_CR1_PARAM_RECEIVE_DATA_LENGTH_POS						(0x00)

#define HSPIM_DCR_PARAM_DMA_RECEIVE_LEVEL_POS						(0x07)
#define HSPIM_DCR_PARAM_DMA_TRANSMIT_LEVEL_POS						(0x00)

#define HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS			(0x08)
#define HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS			(0x10)

#define HSPIM_SR_PUSH_FULL_TX								(1 << 4)
#define HSPIM_SR_POP_EMPTY_RX								(1 << 10)
#define HSPIM_FIFO_TX_NUM									(63)
#define HSPIM_FIFO_RX_NUM									(63)
#define HSPIM_FIFO_LEVEL									(48)

#define SPIM_FIFO_TX_NUM									(16)
#define SPIM_FIFO_RX_NUM									(16)
#define SPIM_FIFO_RX_LEVEL									(7)
#define SPIM_FIFO_TX_LEVEL									(8)
typedef struct
{
	const volatile void *RegBase;
	const int32_t IrqLine;
	const uint16_t DMATxChannel;
	const uint16_t DMARxChannel;
	CBFuncEx_t Callback;
	void *pParam;
	volatile HANDLE Sem;
	Buffer_Struct TxBuf;
	Buffer_Struct RxBuf;
	uint32_t Speed;
	uint32_t TargetSpeed;
	uint8_t DMATxStream;
	uint8_t DMARxStream;
	uint8_t Is16Bit;
	uint8_t IsOnlyTx;
	uint8_t IsBusy;
	uint8_t IsBlockMode;
	uint8_t SpiMode;
}SPI_ResourceStruct;

static SPI_ResourceStruct prvSPI[SPI_MAX] = {
		{
				HSPIM,
				SPI5_IRQn,
				SYSCTRL_PHER_CTRL_DMA_CHx_IF_HSPI_TX,
				SYSCTRL_PHER_CTRL_DMA_CHx_IF_HSPI_RX,
		},
		{
				SPIM0,
				SPI0_IRQn,
				SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI0_TX,
				SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI0_RX,
		},
		{
				SPIM1,
				SPI1_IRQn,
				SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI1_TX,
				SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI1_RX,
		},
		{
				SPIM2,
				SPI2_IRQn,
				SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI2_TX,
				SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI2_RX,
		},
		{
				SPIS0,
				SPI0_IRQn,
				SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI0_TX,
				SYSCTRL_PHER_CTRL_DMA_CHx_IF_SPI0_RX,
		},
};

static void HSPI_IrqHandle(int32_t IrqLine, void *pData)
{
	uint32_t SpiID = HSPI_ID0;
	uint32_t RxLevel, i, TxLen;
	HSPIM_TypeDef *SPI = HSPIM;
	volatile uint32_t DummyData;
	if (!prvSPI[SpiID].IsBusy)
	{

		ISR_Clear(prvSPI[SpiID].IrqLine);
		ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
		return;
	}
	if (prvSPI[SpiID].RxBuf.Data)
	{
		while (prvSPI[SpiID].RxBuf.Pos < prvSPI[SpiID].RxBuf.MaxLen)
		{
			if (SPI->SR & HSPIM_SR_POP_EMPTY_RX)
			{
				break;
			}
			else
			{
				prvSPI[SpiID].RxBuf.Data[prvSPI[SpiID].RxBuf.Pos] = SPI->RDR;
				prvSPI[SpiID].RxBuf.Pos++;
			}
		}
	}
	else
	{
		while (prvSPI[SpiID].RxBuf.Pos < prvSPI[SpiID].RxBuf.MaxLen)
		{
			if (SPI->SR & HSPIM_SR_POP_EMPTY_RX)
			{
				break;
			}
			else
			{
				DummyData = SPI->RDR;
				prvSPI[SpiID].RxBuf.Pos++;
			}
		}
	}


	if (prvSPI[SpiID].RxBuf.Pos >= prvSPI[SpiID].RxBuf.MaxLen)
	{
		SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
		prvSPI[SpiID].IsBusy = 0;
		ISR_Clear(prvSPI[SpiID].IrqLine);
		ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
		if ((prvSPI[SpiID].TxBuf.Pos != prvSPI[SpiID].RxBuf.Pos) || (prvSPI[SpiID].RxBuf.Pos != prvSPI[SpiID].RxBuf.MaxLen))
		{
			DBG("%u, %u", prvSPI[SpiID].TxBuf.Pos, prvSPI[SpiID].RxBuf.Pos);
		}
#ifdef __BUILD_OS__
		if (prvSPI[SpiID].IsBlockMode)
		{
			prvSPI[SpiID].IsBlockMode = 0;
			OS_MutexRelease(prvSPI[SpiID].Sem);
		}
#endif
		PM_SetHardwareRunFlag(PM_HW_HSPI, 0);
		prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
		return;
	}

	if (prvSPI[SpiID].TxBuf.Pos < prvSPI[SpiID].TxBuf.MaxLen)
	{
		i = 0;
		TxLen = (HSPIM_FIFO_TX_NUM - (SPI->FSR & 0x0000003f));
		if (TxLen > (prvSPI[SpiID].TxBuf.MaxLen -prvSPI[SpiID].TxBuf.Pos))
		{
			TxLen = prvSPI[SpiID].TxBuf.MaxLen - prvSPI[SpiID].TxBuf.Pos;
		}
		while((i < TxLen))
		{
			SPI->WDR = prvSPI[SpiID].TxBuf.Data[prvSPI[SpiID].TxBuf.Pos + i];
			i++;
		}
		prvSPI[SpiID].TxBuf.Pos += TxLen;
		if (prvSPI[SpiID].TxBuf.Pos >= prvSPI[SpiID].TxBuf.MaxLen)
		{
			SPI->FCR = (63 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(0 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(63);
			SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
			SPI->CR0 |= (5 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
		}
	}
	else
	{
		SPI->FCR = (63 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(0 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(63);
		SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
		SPI->CR0 |= (5 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
	}
}

static int32_t SPI_DMADoneCB(void *pData, void *pParam)
{
	uint32_t SpiID = (uint32_t)pData;
	uint32_t RxLevel;

	if (prvSPI[SpiID].RxBuf.MaxLen > prvSPI[SpiID].RxBuf.Pos)
	{
		RxLevel = ((prvSPI[SpiID].RxBuf.MaxLen -  prvSPI[SpiID].RxBuf.Pos) > 4080)?4000:(prvSPI[SpiID].RxBuf.MaxLen -  prvSPI[SpiID].RxBuf.Pos);

		DMA_ClearStreamFlag(prvSPI[SpiID].DMATxStream);

		DMA_ClearStreamFlag(prvSPI[SpiID].DMARxStream);

		if (prvSPI[SpiID].IsOnlyTx)
		{
			DMA_ForceStartStream(prvSPI[SpiID].DMATxStream, &prvSPI[SpiID].TxBuf.Data[prvSPI[SpiID].TxBuf.Pos], RxLevel, SPI_DMADoneCB, (void *)SpiID, 1);
//			DMA_ForceStartStream(prvSPI[SpiID].DMARxStream, &prvSPI[SpiID].RxBuf.Data[prvSPI[SpiID].RxBuf.Pos], RxLevel, NULL, NULL, 0);
		}
		else
		{
			DMA_ForceStartStream(prvSPI[SpiID].DMATxStream, &prvSPI[SpiID].TxBuf.Data[prvSPI[SpiID].TxBuf.Pos], RxLevel, NULL, NULL, 0);
			DMA_ForceStartStream(prvSPI[SpiID].DMARxStream, &prvSPI[SpiID].RxBuf.Data[prvSPI[SpiID].RxBuf.Pos], RxLevel, SPI_DMADoneCB, (void *)SpiID, 1);
		}
		prvSPI[SpiID].RxBuf.Pos += RxLevel;
		prvSPI[SpiID].TxBuf.Pos += RxLevel;
	}

	else
	{
		prvSPI[SpiID].IsBusy = 0;
		if ((prvSPI[SpiID].TxBuf.Pos != prvSPI[SpiID].RxBuf.Pos) || (prvSPI[SpiID].RxBuf.Pos != prvSPI[SpiID].RxBuf.MaxLen))
		{
			DBG("%u, %u", prvSPI[SpiID].TxBuf.Pos, prvSPI[SpiID].RxBuf.Pos);
		}
#ifdef __BUILD_OS__
		if (prvSPI[SpiID].IsBlockMode)
		{
			prvSPI[SpiID].IsBlockMode = 0;
			OS_MutexRelease(prvSPI[SpiID].Sem);
		}
#endif
		if (SpiID)
		{
			PM_SetHardwareRunFlag(PM_HW_HSPI, 0);
		}
		else
		{
			PM_SetHardwareRunFlag(PM_HW_SPI_0 + SpiID - 1, 0);
		}
		prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
	}


}

static void SPI_IrqHandle(int32_t IrqLine, void *pData)
{
	uint32_t SpiID = (uint32_t)pData;
	volatile uint32_t DummyData;
	uint32_t RxLevel, SR, i, TxLen;
	SPI_TypeDef *SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
	if (!prvSPI[SpiID].IsBusy)
	{
		SR = SPI->ICR;
		SPI->IMR = 0;
		SPI->SER = 0;
		ISR_Clear(prvSPI[SpiID].IrqLine);
		ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
		return;
	}
	TxLen = SPIM_FIFO_TX_NUM - SPI->TXFLR;

	SR = SPI->ICR;
	if (prvSPI[SpiID].RxBuf.Data)
	{
		while(SPI->RXFLR)
		{
			prvSPI[SpiID].RxBuf.Data[prvSPI[SpiID].RxBuf.Pos] = SPI->DR;
			prvSPI[SpiID].RxBuf.Pos++;
		}
	}
	else
	{
		while(SPI->RXFLR)
		{
			DummyData = SPI->DR;
			prvSPI[SpiID].RxBuf.Pos++;
		}
	}

	if (prvSPI[SpiID].RxBuf.Pos >= prvSPI[SpiID].RxBuf.MaxLen)
	{

		SR = SPI->ICR;
		SPI->IMR = 0;
		SPI->SER = 0;
		prvSPI[SpiID].IsBusy = 0;
		ISR_Clear(prvSPI[SpiID].IrqLine);
		ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
		if (prvSPI[SpiID].TxBuf.Pos != prvSPI[SpiID].RxBuf.Pos)
		{
			DBG("%u, %u", prvSPI[SpiID].TxBuf.Pos, prvSPI[SpiID].RxBuf.Pos);
		}
#ifdef __BUILD_OS__
		if (prvSPI[SpiID].IsBlockMode)
		{
			prvSPI[SpiID].IsBlockMode = 0;
			OS_MutexRelease(prvSPI[SpiID].Sem);
		}
#endif
		PM_SetHardwareRunFlag(PM_HW_SPI_0 + SpiID - 1, 0);
		prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
		return;
	}

	if (prvSPI[SpiID].TxBuf.Pos < prvSPI[SpiID].TxBuf.MaxLen)
	{
		i = 0;
		if (TxLen > (prvSPI[SpiID].TxBuf.MaxLen -prvSPI[SpiID].TxBuf.Pos))
		{
			TxLen = prvSPI[SpiID].TxBuf.MaxLen - prvSPI[SpiID].TxBuf.Pos;
		}
		while((i < TxLen))
		{
			SPI->DR = prvSPI[SpiID].TxBuf.Data[prvSPI[SpiID].TxBuf.Pos + i];
			i++;
		}
		prvSPI[SpiID].TxBuf.Pos += i;
	}
	else
	{

		if ((prvSPI[SpiID].RxBuf.MaxLen - prvSPI[SpiID].RxBuf.Pos) >= SPIM_FIFO_RX_NUM)
		{
			SPI->RXFTLR = (SPIM_FIFO_RX_NUM - 1);
		}
		else
		{
			SPI->RXFTLR = prvSPI[SpiID].RxBuf.MaxLen - prvSPI[SpiID].RxBuf.Pos - 1;
		}
		SPI->IMR = SPI_IMR_RXOIM|SPI_IMR_RXFIM;
	}
}

static int32_t SPI_DummyCB(void *pData, void *pParam)
{
	return 0;
}

static void HSPI_MasterInit(uint8_t SpiID, uint8_t Mode, uint32_t Speed)
{
	HSPIM_TypeDef *SPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
	uint32_t div = (SystemCoreClock / Speed) >> 1;
	uint32_t ctrl = (1 << 24) | (1 << 10) | (1 << 2) | (1 << 1);
	switch(Mode)
	{
	case SPI_MODE_0:
		break;
	case SPI_MODE_1:
		ctrl |= (1 << HSPIM_CR0_PARAM_CPHA_POS);
		break;
	case SPI_MODE_2:
		ctrl |= (1 << HSPIM_CR0_PARAM_CPOL_POS);
		break;
	case SPI_MODE_3:
		ctrl |= (1 << HSPIM_CR0_PARAM_CPOL_POS)|(1 << HSPIM_CR0_PARAM_CPHA_POS);
		break;
	}
	SPI->CR1 = (div << HSPIM_CR1_PARAM_BAUDRATE_POS);
	SPI->CR0 = ctrl;
	SPI->DCR = 30|(1 << 7);
	prvSPI[SpiID].Speed = (SystemCoreClock >> 1) / div;
	ISR_SetHandler(prvSPI[SpiID].IrqLine, HSPI_IrqHandle, (uint32_t)SpiID);
#ifdef __BUILD_OS__
	ISR_SetPriority(prvSPI[SpiID].IrqLine, IRQ_MAX_PRIORITY + 1);
#else
	ISR_SetPriority(prvSPI[SpiID].IrqLine, 3);
#endif
	ISR_Clear(prvSPI[SpiID].IrqLine);
	ISR_OnOff(prvSPI[SpiID].IrqLine, 0);

}

void SPI_MasterInit(uint8_t SpiID, uint8_t DataBit, uint8_t Mode, uint32_t Speed, CBFuncEx_t CB, void *pUserData)
{
	SPI_TypeDef *SPI;
	uint32_t ctrl;
	uint32_t div;
	prvSPI[SpiID].SpiMode = Mode;
	prvSPI[SpiID].TargetSpeed = Speed;
	switch(SpiID)
	{
	case HSPI_ID0:
		HSPI_MasterInit(SpiID, Mode, Speed);
		break;
	case SPI_ID0:
		SYSCTRL->PHER_CTRL &= ~SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
	case SPI_ID1:
	case SPI_ID2:
		SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
		SPI->SSIENR = 0;
		SPI->SER = 0;
		SPI->IMR = 0;
		SPI->DMACR = 0;
		ctrl = DataBit - 1;
		switch(Mode)
		{
		case SPI_MODE_0:
			break;
		case SPI_MODE_1:
			ctrl |= SPI_CTRLR0_SCPH;
			break;
		case SPI_MODE_2:
			ctrl |= SPI_CTRLR0_SCPOL;
			break;
		case SPI_MODE_3:
			ctrl |= SPI_CTRLR0_SCPOL|SPI_CTRLR0_SCPH;
			break;
		}
		div = (SystemCoreClock >> 2) / Speed;
		if (!div) div = 2;
		if (div % 2) div++;
		prvSPI[SpiID].Speed = (SystemCoreClock >> 2) / div;
		SPI->CTRLR0 = ctrl;
		SPI->BAUDR = div;
		SPI->TXFTLR = 0;
		SPI->RXFTLR = 0;
		SPI->DMATDLR = 7;
		SPI->DMARDLR = 0;
		ISR_SetHandler(prvSPI[SpiID].IrqLine, SPI_IrqHandle, (uint32_t)SpiID);
#ifdef __BUILD_OS__
		ISR_SetPriority(prvSPI[SpiID].IrqLine, IRQ_LOWEST_PRIORITY - 2);
#else
		ISR_SetPriority(prvSPI[SpiID].IrqLine, 5);
#endif
		ISR_Clear(prvSPI[SpiID].IrqLine);
		ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
		SPI->SSIENR = 1;
		break;
//	case SPI_ID3:
//		SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
//		break;
	default:
		return;
	}
	prvSPI[SpiID].DMATxStream = 0xff;
	prvSPI[SpiID].DMARxStream = 0xff;
	if (CB)
	{
		prvSPI[SpiID].Callback = CB;
	}
	else
	{
		prvSPI[SpiID].Callback = SPI_DummyCB;
	}
	prvSPI[SpiID].pParam = pUserData;
#ifdef __BUILD_OS__
	if (!prvSPI[SpiID].Sem)
	{
		prvSPI[SpiID].Sem = OS_MutexCreate();
	}
#endif
}


void SPI_SetTxOnlyFlag(uint8_t SpiID, uint8_t OnOff)
{
	prvSPI[SpiID].IsOnlyTx = OnOff;
}

void SPI_SetCallbackFun(uint8_t SpiID, CBFuncEx_t CB, void *pUserData)
{
	if (CB)
	{
		prvSPI[SpiID].Callback = CB;
	}
	else
	{
		prvSPI[SpiID].Callback = SPI_DummyCB;
	}
	prvSPI[SpiID].pParam = pUserData;
}


static void SPI_DMATransfer(uint8_t SpiID, uint8_t UseDMA)
{
	uint32_t RxLevel;

	RxLevel = (prvSPI[SpiID].RxBuf.MaxLen > 4080)?4000:prvSPI[SpiID].RxBuf.MaxLen;
	prvSPI[SpiID].RxBuf.Pos += RxLevel;
	prvSPI[SpiID].TxBuf.Pos += RxLevel;
	DMA_StopStream(prvSPI[SpiID].DMATxStream);
	DMA_StopStream(prvSPI[SpiID].DMARxStream);
	if (prvSPI[SpiID].IsOnlyTx)
	{
		DMA_ForceStartStream(prvSPI[SpiID].DMATxStream, prvSPI[SpiID].TxBuf.Data, RxLevel, SPI_DMADoneCB, (void *)SpiID, 1);
//		DMA_ForceStartStream(prvSPI[SpiID].DMARxStream, prvSPI[SpiID].RxBuf.Data, RxLevel, NULL, NULL, 0);
	}
	else
	{
		DMA_ForceStartStream(prvSPI[SpiID].DMATxStream, prvSPI[SpiID].TxBuf.Data, RxLevel, NULL, NULL, 0);
		DMA_ForceStartStream(prvSPI[SpiID].DMARxStream, prvSPI[SpiID].RxBuf.Data, RxLevel, SPI_DMADoneCB, (void *)SpiID, 1);
	}


}

static int32_t HSPI_Transfer(uint8_t SpiID, uint8_t UseDMA)
{
	HSPIM_TypeDef *SPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
	uint32_t TxLen, i;
	PM_SetHardwareRunFlag(PM_HW_HSPI, 1);
	if (UseDMA)
	{
		SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
		SPI->CR0 |= (1 << HSPIM_CR0_PARAM_DMA_TRANSMIT_ENABLE_POS)|(1 << HSPIM_CR0_PARAM_DMA_RECEIVE_ENABLE_POS);
		SPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(0 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
		SPI->FCR &= ~(3 << 6);
		SPI_DMATransfer(SpiID, UseDMA);
	}
	else
	{
		SPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
//		SPI->CR0 &= ~(1 << 10);
		SPI->CR0 &= ~((1 << HSPIM_CR0_PARAM_DMA_TRANSMIT_ENABLE_POS)|(1 << HSPIM_CR0_PARAM_DMA_RECEIVE_ENABLE_POS));



		if (prvSPI[SpiID].TxBuf.MaxLen <= HSPIM_FIFO_TX_NUM)
		{
			TxLen = prvSPI[SpiID].TxBuf.MaxLen;
			SPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|((TxLen - 1) << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
			SPI->CR0 |= (5 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
		}
		else
		{
			TxLen = HSPIM_FIFO_TX_NUM;
			SPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(63 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
			SPI->CR0 |= (3 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
		}

		SPI->FCR &= ~(3 << 6);

		for(i = 0; i < TxLen; i++)
		{
			SPI->WDR = prvSPI[SpiID].TxBuf.Data[i];
		}
		prvSPI[SpiID].TxBuf.Pos += TxLen;
//		SPI->CR0 |= (1 << 10);
		ISR_Clear(prvSPI[SpiID].IrqLine);
		ISR_OnOff(prvSPI[SpiID].IrqLine, 1);
		return ERROR_NONE;
	}
	return ERROR_NONE;
}

int32_t SPI_Transfer(uint8_t SpiID, const uint8_t *TxData, uint8_t *RxData, uint32_t Len, uint8_t UseDMA)
{
	uint32_t SR;
	SPI_TypeDef *SPI;
	if (prvSPI[SpiID].IsBusy)
	{
		return -ERROR_DEVICE_BUSY;
	}
	prvSPI[SpiID].IsBusy = 1;

	uint32_t RxLevel, i, TxLen;
	Buffer_StaticInit(&prvSPI[SpiID].TxBuf, TxData, Len);
	Buffer_StaticInit(&prvSPI[SpiID].RxBuf, RxData, Len);
	switch(SpiID)
	{
	case HSPI_ID0:
		ISR_Clear(prvSPI[SpiID].IrqLine);
		ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
		return HSPI_Transfer(SpiID, UseDMA);
	case SPI_ID0:
		SYSCTRL->PHER_CTRL &= ~SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
	case SPI_ID1:
	case SPI_ID2:
		break;
//	case SPI_ID3:
//		SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
//		break;
	default:
		return -ERROR_ID_INVALID;
	}
	PM_SetHardwareRunFlag(PM_HW_SPI_0 + SpiID - 1, 1);
	SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
	SPI->SER = 0;
	if (UseDMA)
	{

		SR = SPI->ICR;
		SPI->IMR = 0;
		SPI->DMACR = SPI_DMACR_RDMAE|SPI_DMACR_TDMAE;
		ISR_Clear(prvSPI[SpiID].IrqLine);
		ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
		SPI->SER = 1;
		SPI_DMATransfer(SpiID, 1);

	}
	else
	{
		ISR_OnOff(prvSPI[SpiID].IrqLine, 0);

		if (prvSPI[SpiID].RxBuf.MaxLen <= SPIM_FIFO_RX_NUM)
		{
			SPI->RXFTLR = prvSPI[SpiID].RxBuf.MaxLen - 1;
			TxLen = prvSPI[SpiID].RxBuf.MaxLen;
			SPI->IMR = SPI_IMR_RXOIM|SPI_IMR_RXFIM;
		}
		else
		{
			SPI->IMR = SPI_IMR_TXEIM;
			SPI->RXFTLR = SPIM_FIFO_RX_LEVEL;
			SPI->TXFTLR = SPIM_FIFO_TX_LEVEL;
			TxLen = SPIM_FIFO_TX_NUM;
		}
		for(i = 0; i < TxLen; i++)
		{
			SPI->DR = prvSPI[SpiID].TxBuf.Data[i];
		}
		prvSPI[SpiID].TxBuf.Pos += TxLen;
		ISR_Clear(prvSPI[SpiID].IrqLine);
		ISR_OnOff(prvSPI[SpiID].IrqLine, 1);
	}
	SPI->SER = 1;

	return ERROR_NONE;
}


static int32_t prvSPI_BlockTransfer(uint8_t SpiID, const uint8_t *TxData, uint8_t *RxData, uint32_t Len)
{
	volatile uint32_t DummyData;
	uint32_t TxLen, RxLen, i, To;
	HSPIM_TypeDef *HSPI;
	SPI_TypeDef *SPI;
	prvSPI[SpiID].IsBusy = 1;
	switch(SpiID)
	{
	case HSPI_ID0:
		HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
		ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
		HSPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(32 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
		HSPI->FCR &= ~(3 << 6);
		HSPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
		if (Len <= HSPIM_FIFO_TX_NUM)
		{
			TxLen = Len;
		}
		else
		{
			TxLen = HSPIM_FIFO_TX_NUM;
		}
		for(i = 0; i < TxLen; i++)
		{
			HSPI->WDR = TxData[i];
		}
		if (RxData)
		{
			for(RxLen = 0; RxLen < Len; RxLen++)
			{
				while (HSPI->SR & HSPIM_SR_POP_EMPTY_RX)
				{
					;
				}
				RxData[RxLen] = HSPI->RDR;
				if (TxLen < Len)
				{
					HSPI->WDR = TxData[TxLen];
					TxLen++;
				}
			}
		}
		else
		{
			while(TxLen < Len)
			{
				while ((HSPI->FSR & 0x7f) > 16)
				{
					;
				}
				HSPI->WDR = TxData[TxLen];
				TxLen++;
			}
			while ((HSPI->FSR & 0x7f))
			{
				;
			}
//			for(RxLen = 0; RxLen < Len; RxLen++)
//			{
//				while (HSPI->SR & HSPIM_SR_POP_EMPTY_RX)
//				{
//					;
//				}
//				DummyData = HSPI->RDR;
//				if (TxLen < Len)
//				{
//					HSPI->WDR = TxData[TxLen];
//					TxLen++;
//				}
//			}
		}
		break;
	case SPI_ID0:
	case SPI_ID1:
	case SPI_ID2:
		SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
		ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
		SPI->SER = 0;
		if (Len <= SPIM_FIFO_TX_NUM)
		{
			TxLen = Len;
		}
		else
		{
			TxLen = SPIM_FIFO_TX_NUM;
		}
		for(i = 0; i < TxLen; i++)
		{
			SPI->DR = TxData[i];
		}
		SPI->SER = 1;
		if (RxData)
		{
			for(RxLen = 0; RxLen < Len; RxLen++)
			{
				while (!SPI->RXFLR)
				{
					;
				}
				RxData[RxLen] = SPI->DR;
				if (TxLen < Len)
				{
					SPI->DR = TxData[TxLen];
					TxLen++;
				}
			}
		}
		else
		{
			for(RxLen = 0; RxLen < Len; RxLen++)
			{
				while (!SPI->RXFLR)
				{
					;
				}
				DummyData = SPI->DR;
				if (TxLen < Len)
				{
					SPI->DR = TxData[TxLen];
					TxLen++;
				}
			}
		}
		SPI->SER = 0;
		break;
	}
	prvSPI[SpiID].IsBusy = 0;
	prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
	return 0;
}

int32_t SPI_BlockTransfer(uint8_t SpiID, const uint8_t *TxData, uint8_t *RxData, uint32_t Len)
{
	uint32_t times = 192000000;
	if (prvSPI[SpiID].Speed >= 48000000)
	{
		times = Len * 100000;
	}

#ifdef __BUILD_OS__
	//if ( OS_CheckInIrq() || ((prvSPI[SpiID].Speed >> 3) >= (Len * 50000 * ((SpiID==HSPI_ID0)?2:1))))
	if ( OS_CheckInIrq() || ((prvSPI[SpiID].Speed >> 3) >= times))
	{
		prvSPI[SpiID].IsBlockMode = 0;
#endif
		return prvSPI_BlockTransfer(SpiID, TxData, RxData, Len);
#ifdef __BUILD_OS__
	}
	int32_t Result;
	uint8_t DMAMode;
	uint32_t Time = (Len * 1000) / (prvSPI[SpiID].Speed >> 3);
	prvSPI[SpiID].IsBlockMode = 1;
	if ( (prvSPI[SpiID].DMARxStream == 0xff) || (prvSPI[SpiID].DMATxStream == 0xff) )
	{
		DMAMode = 0;
	}
	else
	{
		DMAMode = 1;
	}
	if (TxData)
	{
		Result = SPI_Transfer(SpiID, TxData, RxData, Len, DMAMode);
	}
	else
	{
		Result = SPI_Transfer(SpiID, RxData, RxData, Len, DMAMode);
	}
	if (Result)
	{
		prvSPI[SpiID].IsBlockMode = 0;
		DBG("!");
		return Result;
	}
	if (OS_MutexLockWtihTime(prvSPI[SpiID].Sem, Time + 20))
	{
		DBG("spi id %d timeout",SpiID);
		SPI_TransferStop(SpiID);
		prvSPI[SpiID].IsBlockMode = 0;
		return -1;
	}
	prvSPI[SpiID].IsBlockMode = 0;
	return 0;
#endif
}


static int32_t prvSPI_FlashBlockTransfer(uint8_t SpiID, const uint8_t *TxData, uint32_t WLen, uint8_t *RxData, uint32_t RLen)
{
	volatile uint32_t DummyData;
	uint32_t TxLen, RxLen, i;
	HSPIM_TypeDef *HSPI;
	SPI_TypeDef *SPI;
	prvSPI[SpiID].IsBusy = 1;
	switch(SpiID)
	{
	case HSPI_ID0:
		HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;

		HSPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(32 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
		HSPI->FCR &= ~(3 << 6);
		HSPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
		if (WLen <= HSPIM_FIFO_TX_NUM)
		{
			TxLen = WLen;
		}
		else
		{
			TxLen = HSPIM_FIFO_TX_NUM;
		}
		for(i = 0; i < TxLen; i++)
		{
			HSPI->WDR = TxData[i];
		}
		for(RxLen = 0; RxLen < WLen; RxLen++)
		{
			while (HSPI->SR & HSPIM_SR_POP_EMPTY_RX)
			{
				;
			}
			DummyData = HSPI->RDR;
			if (TxLen < WLen)
			{
				HSPI->WDR = TxData[TxLen];
				TxLen++;
			}
		}
		if (RLen <= HSPIM_FIFO_TX_NUM)
		{
			TxLen = RLen;
		}
		else
		{
			TxLen = HSPIM_FIFO_TX_NUM;
		}
		for(i = 0; i < TxLen; i++)
		{
			HSPI->WDR = TxData[i];
		}
		for(RxLen = 0; RxLen < RLen; RxLen++)
		{
			while (HSPI->SR & HSPIM_SR_POP_EMPTY_RX)
			{
				;
			}
			RxData[RxLen] = HSPI->RDR;
			if (TxLen < RLen)
			{
				HSPI->WDR = 0xff;
				TxLen++;
			}
		}

		break;
	case SPI_ID0:
	case SPI_ID1:
	case SPI_ID2:
		SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
		ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
		SPI->SER = 0;
		if (WLen <= SPIM_FIFO_TX_NUM)
		{
			TxLen = WLen;
		}
		else
		{
			TxLen = SPIM_FIFO_TX_NUM;
		}
		for(i = 0; i < TxLen; i++)
		{
			SPI->DR = TxData[i];
		}
		SPI->SER = 1;
		for(RxLen = 0; RxLen < WLen; RxLen++)
		{
			while (!SPI->RXFLR)
			{
				;
			}
			DummyData = SPI->DR;
			if (TxLen < WLen)
			{
				SPI->DR = TxData[TxLen];
				TxLen++;
			}
		}
		if (RLen <= SPIM_FIFO_TX_NUM)
		{
			TxLen = RLen;
		}
		else
		{
			TxLen = SPIM_FIFO_TX_NUM;
		}
		for(i = 0; i < TxLen; i++)
		{
			SPI->DR = TxData[i];
		}

		for(RxLen = 0; RxLen < RLen; RxLen++)
		{
			while (!SPI->RXFLR)
			{
				;
			}
			RxData[RxLen] = SPI->DR;
			if (TxLen < RLen)
			{
				SPI->DR = 0xff;
				TxLen++;
			}
		}
		SPI->SER = 0;
		break;
	}
	prvSPI[SpiID].IsBusy = 0;
	prvSPI[SpiID].Callback((void *)SpiID, prvSPI[SpiID].pParam);
	return 0;
}

int32_t SPI_FlashBlockTransfer(uint8_t SpiID, const uint8_t *TxData, uint32_t WLen, uint8_t *RxData, uint32_t RLen)
{
	uint32_t times = 192000000;
	if (prvSPI[SpiID].Speed >= 48000000)
	{
		times = (WLen + RLen) * 100000;
	}
#ifdef __BUILD_OS__
//	if ( OS_CheckInIrq() || ((prvSPI[SpiID].Speed >> 3) >= ((WLen + RLen) * 50000 * ((SpiID==HSPI_ID0)?2:1) )))
	if ( OS_CheckInIrq() || ((prvSPI[SpiID].Speed >> 3) >= times))
	{
		prvSPI[SpiID].IsBlockMode = 0;
#endif
		return prvSPI_FlashBlockTransfer(SpiID, TxData, WLen, RxData, RLen);
#ifdef __BUILD_OS__
	}
	int32_t Result;
	uint8_t DMAMode;
	uint32_t Time = ((WLen + RLen) * 1000) / (prvSPI[SpiID].Speed >> 3);
	uint8_t *Temp = malloc(WLen + RLen);
	if (TxData)
	{
		memcpy(Temp, TxData, WLen);
	}
	prvSPI[SpiID].IsBlockMode = 1;
	if ( (prvSPI[SpiID].DMARxStream == 0xff) || (prvSPI[SpiID].DMATxStream == 0xff) )
	{
		DMAMode = 0;
	}
	else
	{
		DMAMode = 1;
	}
	Result = SPI_Transfer(SpiID, Temp, Temp, WLen + RLen, DMAMode);
	if (Result)
	{
		prvSPI[SpiID].IsBlockMode = 0;
		free(Temp);
		return Result;
	}
	if (OS_MutexLockWtihTime(prvSPI[SpiID].Sem, Time + 20))
	{
		free(Temp);
		DBG("!!!");
		SPI_TransferStop(SpiID);
		prvSPI[SpiID].IsBlockMode = 0;
		return -1;
	}
	memcpy(RxData, Temp + WLen, RLen);
	prvSPI[SpiID].IsBlockMode = 0;
	free(Temp);
	return 0;
#endif
}


void SPI_DMATxInit(uint8_t SpiID, uint8_t Stream, uint32_t Channel)
{
	SPI_TypeDef *SPI;
	HSPIM_TypeDef *HSPI;
	DMA_InitTypeDef DMA_InitStruct;
	DMA_BaseConfig(&DMA_InitStruct);
	DMA_InitStruct.DMA_Peripheral = prvSPI[SpiID].DMATxChannel;
	DMA_InitStruct.DMA_Priority = DMA_Priority_3;
	prvSPI[SpiID].DMATxStream = Stream;
	switch(SpiID)
	{
	case HSPI_ID0:
		HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
		if (prvSPI[SpiID].IsOnlyTx)
		{
			DMA_InitStruct.DMA_Priority = DMA_Priority_0;
		}
		DMA_InitStruct.DMA_PeripheralBurstSize = DMA_BurstSize_32;
		DMA_InitStruct.DMA_MemoryBurstSize = DMA_BurstSize_32;
		DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&HSPI->WDR;
		break;
	case SPI_ID0:
	case SPI_ID1:
	case SPI_ID2:
		SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
		DMA_InitStruct.DMA_PeripheralBurstSize = DMA_BurstSize_8;
		DMA_InitStruct.DMA_MemoryBurstSize = DMA_BurstSize_8;
		DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&SPI->DR;
		break;
//	case SPI_ID3:
//		SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
//		break;
	default:
		return;
	}
	DMA_ConfigStream(Stream, &DMA_InitStruct);
}
void SPI_DMARxInit(uint8_t SpiID, uint8_t Stream, uint32_t Channel)
{
	SPI_TypeDef *SPI;
	HSPIM_TypeDef *HSPI;
	DMA_InitTypeDef DMA_InitStruct;
	DMA_BaseConfig(&DMA_InitStruct);
	DMA_InitStruct.DMA_Peripheral = prvSPI[SpiID].DMARxChannel;
	DMA_InitStruct.DMA_Priority = DMA_Priority_2;
	prvSPI[SpiID].DMARxStream = Stream;
	switch(SpiID)
	{
	case HSPI_ID0:
		HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
		DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&HSPI->RDR;
		break;
	case SPI_ID0:
	case SPI_ID1:
	case SPI_ID2:
		SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
		DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&SPI->DR;
		break;
//	case SPI_ID3:
//		SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
//		break;
	default:
		return;
	}
	DMA_ConfigStream(Stream, &DMA_InitStruct);
}

void SPI_TransferStop(uint8_t SpiID)
{
	uint16_t Data;
	ISR_Clear(prvSPI[SpiID].IrqLine);
	ISR_OnOff(prvSPI[SpiID].IrqLine, 0);
	SPI_TypeDef *SPI;
	HSPIM_TypeDef *HSPI;
	uint32_t TxLen, i;
	DMA_StopStream(prvSPI[SpiID].DMATxStream);
	DMA_StopStream(prvSPI[SpiID].DMARxStream);
	switch(SpiID)
	{
	case HSPI_ID0:
		HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
		HSPI->CR0 &= ~(7 << HSPIM_CR0_PARAM_INTERRPUT_ENABLE_POS);
		HSPI->FCR = (32 << HSPIM_FCR_PARAM_TRANSIMIT_FIFO_EMPTY_THRESHOULD_POS)|(32 << HSPIM_FCR_PARAM_RECEIVE_FIFO_FULL_THRESHOULD_POS)|(3 << 6)|(63);
		HSPI->FCR &= ~(3 << 6);
		PM_SetHardwareRunFlag(PM_HW_HSPI, 0);
		break;
	case SPI_ID0:
		SYSCTRL->PHER_CTRL &= ~SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
	case SPI_ID1:
	case SPI_ID2:
		SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
		while(SPI->TXFLR){;}
		while(SPI->RXFLR){Data = SPI->DR;}
		SPI->SER = 0;
		break;
//	case SPI_ID3:
//		SYSCTRL->PHER_CTRL |= SYSCTRL_PHER_CTRL_SPI0_SLV_EN;
//		break;
	default:
		return ;
	}
	PM_SetHardwareRunFlag(PM_HW_SPI_0 + SpiID - 1, 0);
	prvSPI[SpiID].IsBusy = 0;

}

uint8_t SPI_IsTransferBusy(uint8_t SpiID)
{
	return prvSPI[SpiID].IsBusy;
}

void SPI_SetNewConfig(uint8_t SpiID, uint32_t Speed, uint8_t NewMode)
{
	HSPIM_TypeDef *HSPI;
	SPI_TypeDef *SPI;
	uint32_t div;
	if (prvSPI[SpiID].IsBusy) return;
	if (NewMode == 0xff) {NewMode = prvSPI[SpiID].SpiMode;}
	if ((prvSPI[SpiID].TargetSpeed == Speed) && (prvSPI[SpiID].SpiMode == NewMode))
	{
		return;
	}
//	DBG("speed %u->%u mode %u->%u", prvSPI[SpiID].TargetSpeed, Speed, prvSPI[SpiID].SpiMode, NewMode);
	prvSPI[SpiID].TargetSpeed = Speed;
	prvSPI[SpiID].SpiMode == NewMode;
	switch(SpiID)
	{
	case HSPI_ID0:
		HSPI = (HSPIM_TypeDef *)prvSPI[SpiID].RegBase;
		div = (SystemCoreClock / Speed) >> 1;
		HSPI->CR1 = (div << HSPIM_CR1_PARAM_BAUDRATE_POS);
		prvSPI[SpiID].Speed = (SystemCoreClock >> 1) / div;
		HSPI->CR0 &= ~((1 << HSPIM_CR0_PARAM_CPOL_POS)|(1 << HSPIM_CR0_PARAM_CPHA_POS));
		switch(NewMode)
		{
		case SPI_MODE_0:

			break;
		case SPI_MODE_1:
			HSPI->CR0 |= (1 << HSPIM_CR0_PARAM_CPHA_POS);
			break;
		case SPI_MODE_2:
			HSPI->CR0 |= (1 << HSPIM_CR0_PARAM_CPOL_POS);
			break;
		case SPI_MODE_3:
			HSPI->CR0 |= (1 << HSPIM_CR0_PARAM_CPOL_POS)|(1 << HSPIM_CR0_PARAM_CPHA_POS);
			break;
		}
		break;
	case SPI_ID0:
	case SPI_ID1:
	case SPI_ID2:
		SPI = (SPI_TypeDef *)prvSPI[SpiID].RegBase;
		SPI->SSIENR = 0;
		div = (SystemCoreClock >> 2) / Speed;
		if (!div) div = 2;
		if (div % 2) div++;
		prvSPI[SpiID].Speed = (SystemCoreClock >> 2) / div;
		SPI->BAUDR = div;
		SPI->CTRLR0 &= ~(SPI_CTRLR0_SCPOL|SPI_CTRLR0_SCPH);
		switch(NewMode)
		{
		case SPI_MODE_0:
			break;
		case SPI_MODE_1:
			SPI->CTRLR0 |= SPI_CTRLR0_SCPH;
			break;
		case SPI_MODE_2:
			SPI->CTRLR0 |= SPI_CTRLR0_SCPOL;
			break;
		case SPI_MODE_3:
			SPI->CTRLR0 |= SPI_CTRLR0_SCPOL|SPI_CTRLR0_SCPH;
			break;
		}
		SPI->SSIENR = 1;
		break;
	}
}