129 lines
5.9 KiB
C
129 lines
5.9 KiB
C
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//*****************************************************************************
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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) 2005-2008 Luminary Micro, Inc. All rights reserved.
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//
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// Software License Agreement
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//
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// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
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// exclusively on LMI's microcontroller products.
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//
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// The software is owned by LMI and/or its suppliers, and is protected under
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// applicable copyright laws. All rights are reserved. You may not combine
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// this software with "viral" open-source software in order to form a larger
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// program. Any use in violation of the foregoing restrictions may subject
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// the user to criminal sanctions under applicable laws, as well as to civil
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// liability for the breach of the terms and conditions of this license.
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//
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// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
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// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
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// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
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// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
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//
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// This is part of revision 2523 of the Stellaris Peripheral Driver Library.
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//
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//*****************************************************************************
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#ifndef __SSI_H__
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#define __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 ulIntFlags parameter, and returned by SSIIntStatus.
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//
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//*****************************************************************************
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#define SSI_TXFF 0x00000008 // TX FIFO half empty or less
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#define SSI_RXFF 0x00000004 // RX FIFO half full or less
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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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// Prototypes for the APIs.
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//
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//*****************************************************************************
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extern void SSIConfigSetExpClk(unsigned long ulBase, unsigned long ulSSIClk,
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unsigned long ulProtocol, unsigned long ulMode,
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unsigned long ulBitRate,
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unsigned long ulDataWidth);
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extern void SSIDataGet(unsigned long ulBase, unsigned long *pulData);
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extern long SSIDataGetNonBlocking(unsigned long ulBase,
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unsigned long *pulData);
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extern void SSIDataPut(unsigned long ulBase, unsigned long ulData);
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extern long SSIDataPutNonBlocking(unsigned long ulBase, unsigned long ulData);
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extern void SSIDisable(unsigned long ulBase);
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extern void SSIEnable(unsigned long ulBase);
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extern void SSIIntClear(unsigned long ulBase, unsigned long ulIntFlags);
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extern void SSIIntDisable(unsigned long ulBase, unsigned long ulIntFlags);
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extern void SSIIntEnable(unsigned long ulBase, unsigned long ulIntFlags);
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extern void SSIIntRegister(unsigned long ulBase, void(*pfnHandler)(void));
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extern unsigned long SSIIntStatus(unsigned long ulBase, tBoolean bMasked);
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extern void SSIIntUnregister(unsigned long ulBase);
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extern void SSIDMAEnable(unsigned long ulBase, unsigned long ulDMAFlags);
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extern void SSIDMADisable(unsigned long ulBase, unsigned long ulDMAFlags);
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//*****************************************************************************
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//
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// Several SSI APIs have been renamed, with the original function name being
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// deprecated. These defines provide backward compatibility.
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//
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//*****************************************************************************
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#ifndef DEPRECATED
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#include "sysctl.h"
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#define SSIConfig(a, b, c, d, e) \
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SSIConfigSetExpClk(a, SysCtlClockGet(), b, c, d, e)
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#define SSIDataNonBlockingGet(a, b) \
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SSIDataGetNonBlocking(a, b)
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#define SSIDataNonBlockingPut(a, b) \
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SSIDataPutNonBlocking(a, b)
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#endif
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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 // __SSI_H__
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