136 lines
6.3 KiB
C
136 lines
6.3 KiB
C
//*****************************************************************************
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//
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// ssi.h - Prototypes for the Synchronous Serial Interface Driver.
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//
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// Copyright (c) 2005-2013 Texas Instruments Incorporated. All rights reserved.
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// Software License Agreement
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the
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// distribution.
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//
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// Neither the name of Texas Instruments Incorporated nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// This is part of revision 1.1 of the Tiva Peripheral Driver Library.
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//
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//*****************************************************************************
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#ifndef __DRIVERLIB_SSI_H__
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#define __DRIVERLIB_SSI_H__
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//*****************************************************************************
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//
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// If building with a C++ compiler, make all of the definitions in this header
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// have a C binding.
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//
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//*****************************************************************************
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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//*****************************************************************************
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//
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// Values that can be passed to SSIIntEnable, SSIIntDisable, and SSIIntClear
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// as the ui32IntFlags parameter, and returned by SSIIntStatus.
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//
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//*****************************************************************************
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#define SSI_TXFF 0x00000008 // TX FIFO half full or less
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#define SSI_RXFF 0x00000004 // RX FIFO half full or more
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#define SSI_RXTO 0x00000002 // RX timeout
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#define SSI_RXOR 0x00000001 // RX overrun
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//*****************************************************************************
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//
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// Values that can be passed to SSIConfigSetExpClk.
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//
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//*****************************************************************************
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#define SSI_FRF_MOTO_MODE_0 0x00000000 // Moto fmt, polarity 0, phase 0
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#define SSI_FRF_MOTO_MODE_1 0x00000002 // Moto fmt, polarity 0, phase 1
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#define SSI_FRF_MOTO_MODE_2 0x00000001 // Moto fmt, polarity 1, phase 0
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#define SSI_FRF_MOTO_MODE_3 0x00000003 // Moto fmt, polarity 1, phase 1
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#define SSI_FRF_TI 0x00000010 // TI frame format
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#define SSI_FRF_NMW 0x00000020 // National MicroWire frame format
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#define SSI_MODE_MASTER 0x00000000 // SSI master
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#define SSI_MODE_SLAVE 0x00000001 // SSI slave
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#define SSI_MODE_SLAVE_OD 0x00000002 // SSI slave with output disabled
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//*****************************************************************************
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//
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// Values that can be passed to SSIDMAEnable() and SSIDMADisable().
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//
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//*****************************************************************************
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#define SSI_DMA_TX 0x00000002 // Enable DMA for transmit
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#define SSI_DMA_RX 0x00000001 // Enable DMA for receive
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//*****************************************************************************
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//
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// Values that can be passed to SSIClockSourceSet() or returned from
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// SSIClockSourceGet().
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//
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//*****************************************************************************
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#define SSI_CLOCK_SYSTEM 0x00000000
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#define SSI_CLOCK_PIOSC 0x00000005
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//*****************************************************************************
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//
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// Prototypes for the APIs.
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//
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//*****************************************************************************
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extern void SSIConfigSetExpClk(uint32_t ui32Base, uint32_t ui32SSIClk,
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uint32_t ui32Protocol, uint32_t ui32Mode,
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uint32_t ui32BitRate,
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uint32_t ui32DataWidth);
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extern void SSIDataGet(uint32_t ui32Base, uint32_t *pui32Data);
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extern int32_t SSIDataGetNonBlocking(uint32_t ui32Base,
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uint32_t *pui32Data);
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extern void SSIDataPut(uint32_t ui32Base, uint32_t ui32Data);
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extern int32_t SSIDataPutNonBlocking(uint32_t ui32Base, uint32_t ui32Data);
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extern void SSIDisable(uint32_t ui32Base);
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extern void SSIEnable(uint32_t ui32Base);
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extern void SSIIntClear(uint32_t ui32Base, uint32_t ui32IntFlags);
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extern void SSIIntDisable(uint32_t ui32Base, uint32_t ui32IntFlags);
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extern void SSIIntEnable(uint32_t ui32Base, uint32_t ui32IntFlags);
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extern void SSIIntRegister(uint32_t ui32Base, void (*pfnHandler)(void));
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extern uint32_t SSIIntStatus(uint32_t ui32Base, bool bMasked);
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extern void SSIIntUnregister(uint32_t ui32Base);
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extern void SSIDMAEnable(uint32_t ui32Base, uint32_t ui32DMAFlags);
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extern void SSIDMADisable(uint32_t ui32Base, uint32_t ui32DMAFlags);
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extern bool SSIBusy(uint32_t ui32Base);
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extern void SSIClockSourceSet(uint32_t ui32Base, uint32_t ui32Source);
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extern uint32_t SSIClockSourceGet(uint32_t ui32Base);
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//*****************************************************************************
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//
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// Mark the end of the C bindings section for C++ compilers.
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//
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//*****************************************************************************
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#ifdef __cplusplus
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}
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#endif
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#endif // __DRIVERLIB_SSI_H__
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