kopia lustrzana https://github.com/micropython/micropython
164 wiersze
7.4 KiB
C
164 wiersze
7.4 KiB
C
//*****************************************************************************
|
|
//
|
|
// spi.h
|
|
//
|
|
// Defines and Macros for the SPI.
|
|
//
|
|
// Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
|
|
//
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions
|
|
// are met:
|
|
//
|
|
// Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
//
|
|
// Redistributions in binary form must reproduce the above copyright
|
|
// notice, this list of conditions and the following disclaimer in the
|
|
// documentation and/or other materials provided with the
|
|
// distribution.
|
|
//
|
|
// Neither the name of Texas Instruments Incorporated nor the names of
|
|
// its contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
//*****************************************************************************
|
|
|
|
#ifndef __SPI_H__
|
|
#define __SPI_H__
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// If building with a C++ compiler, make all of the definitions in this header
|
|
// have a C binding.
|
|
//
|
|
//*****************************************************************************
|
|
#ifdef __cplusplus
|
|
extern "C"
|
|
{
|
|
#endif
|
|
|
|
//*****************************************************************************
|
|
// Values that can be passed to SPIConfigSetExpClk() as ulMode parameter
|
|
//*****************************************************************************
|
|
#define SPI_MODE_MASTER 0x00000000
|
|
#define SPI_MODE_SLAVE 0x00000004
|
|
|
|
//*****************************************************************************
|
|
// Values that can be passed to SPIConfigSetExpClk() as ulSubMode parameter
|
|
//*****************************************************************************
|
|
#define SPI_SUB_MODE_0 0x00000000
|
|
#define SPI_SUB_MODE_1 0x00000001
|
|
#define SPI_SUB_MODE_2 0x00000002
|
|
#define SPI_SUB_MODE_3 0x00000003
|
|
|
|
|
|
//*****************************************************************************
|
|
// Values that can be passed to SPIConfigSetExpClk() as ulConfigFlags parameter
|
|
//*****************************************************************************
|
|
#define SPI_SW_CTRL_CS 0x01000000
|
|
#define SPI_HW_CTRL_CS 0x00000000
|
|
#define SPI_3PIN_MODE 0x02000000
|
|
#define SPI_4PIN_MODE 0x00000000
|
|
#define SPI_TURBO_ON 0x00080000
|
|
#define SPI_TURBO_OFF 0x00000000
|
|
#define SPI_CS_ACTIVEHIGH 0x00000000
|
|
#define SPI_CS_ACTIVELOW 0x00000040
|
|
#define SPI_WL_8 0x00000380
|
|
#define SPI_WL_16 0x00000780
|
|
#define SPI_WL_32 0x00000F80
|
|
|
|
//*****************************************************************************
|
|
// Values that can be passed to SPIFIFOEnable() and SPIFIFODisable()
|
|
//*****************************************************************************
|
|
#define SPI_TX_FIFO 0x08000000
|
|
#define SPI_RX_FIFO 0x10000000
|
|
|
|
//*****************************************************************************
|
|
// Values that can be passed to SPIDMAEnable() and SPIDMADisable()
|
|
//*****************************************************************************
|
|
#define SPI_RX_DMA 0x00008000
|
|
#define SPI_TX_DMA 0x00004000
|
|
|
|
//*****************************************************************************
|
|
// Values that can be passed to SPIIntEnable(), SPIIntDiasble(),
|
|
// SPIIntClear() or returned from SPIStatus()
|
|
//*****************************************************************************
|
|
#define SPI_INT_DMATX 0x20000000
|
|
#define SPI_INT_DMARX 0x10000000
|
|
#define SPI_INT_EOW 0x00020000
|
|
#define SPI_INT_WKS 0x00010000
|
|
#define SPI_INT_RX_OVRFLOW 0x00000008
|
|
#define SPI_INT_RX_FULL 0x00000004
|
|
#define SPI_INT_TX_UDRFLOW 0x00000002
|
|
#define SPI_INT_TX_EMPTY 0x00000001
|
|
|
|
//*****************************************************************************
|
|
// Values that can be passed to SPITransfer()
|
|
//*****************************************************************************
|
|
#define SPI_CS_ENABLE 0x00000001
|
|
#define SPI_CS_DISABLE 0x00000002
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// API Function prototypes
|
|
//
|
|
//*****************************************************************************
|
|
extern void SPIEnable(unsigned long ulBase);
|
|
extern void SPIDisable(unsigned long ulBase);
|
|
extern void SPIReset(unsigned long ulBase);
|
|
extern void SPIConfigSetExpClk(unsigned long ulBase,unsigned long ulSPIClk,
|
|
unsigned long ulBitRate, unsigned long ulMode,
|
|
unsigned long ulSubMode, unsigned long ulConfig);
|
|
extern long SPIDataGetNonBlocking(unsigned long ulBase,
|
|
unsigned long * pulData);
|
|
extern void SPIDataGet(unsigned long ulBase, unsigned long *pulData);
|
|
extern long SPIDataPutNonBlocking(unsigned long ulBase,
|
|
unsigned long ulData);
|
|
extern void SPIDataPut(unsigned long ulBase, unsigned long ulData);
|
|
extern void SPIFIFOEnable(unsigned long ulBase, unsigned long ulFlags);
|
|
extern void SPIFIFODisable(unsigned long ulBase, unsigned long ulFlags);
|
|
extern void SPIFIFOLevelSet(unsigned long ulBase, unsigned long ulTxLevel,
|
|
unsigned long ulRxLevel);
|
|
extern void SPIFIFOLevelGet(unsigned long ulBase, unsigned long *pulTxLevel,
|
|
unsigned long *pulRxLevel);
|
|
extern void SPIWordCountSet(unsigned long ulBase, unsigned long ulWordCount);
|
|
extern void SPIIntRegister(unsigned long ulBase, void(*pfnHandler)(void));
|
|
extern void SPIIntUnregister(unsigned long ulBase);
|
|
extern void SPIIntEnable(unsigned long ulBase, unsigned long ulIntFlags);
|
|
extern void SPIIntDisable(unsigned long ulBase, unsigned long ulIntFlags);
|
|
extern unsigned long SPIIntStatus(unsigned long ulBase, tBoolean bMasked);
|
|
extern void SPIIntClear(unsigned long ulBase, unsigned long ulIntFlags);
|
|
extern void SPIDmaEnable(unsigned long ulBase, unsigned long ulFlags);
|
|
extern void SPIDmaDisable(unsigned long ulBase, unsigned long ulFlags);
|
|
extern void SPICSEnable(unsigned long ulBase);
|
|
extern void SPICSDisable(unsigned long ulBase);
|
|
extern long SPITransfer(unsigned long ulBase, unsigned char *ucDout,
|
|
unsigned char *ucDin, unsigned long ulSize,
|
|
unsigned long ulFlags);
|
|
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Mark the end of the C bindings section for C++ compilers.
|
|
//
|
|
//*****************************************************************************
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // __SPI_H__
|