215 lines
9.8 KiB
C
215 lines
9.8 KiB
C
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//###########################################################################
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//
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// FILE: uart.h
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//
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// TITLE: Stellaris style wrapper driver for C28x SCI peripheral.
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//
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//###########################################################################
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// $TI Release: F2837xD Support Library v3.05.00.00 $
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// $Release Date: Tue Jun 26 03:15:23 CDT 2018 $
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// $Copyright:
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// Copyright (C) 2013-2018 Texas Instruments Incorporated - http://www.ti.com/
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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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//###########################################################################
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#ifndef __UART_H__
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#define __UART_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 UARTIntEnable, UARTIntDisable, and UARTIntClear
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// as the ui32IntFlags parameter, and returned from UARTIntStatus.
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//
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//*****************************************************************************
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#define UART_INT_RXERR 0x01
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#define UART_INT_RXRDY_BRKDT 0x02
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#define UART_INT_TXRDY 0x04
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#define UART_INT_TXFF 0x08
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#define UART_INT_RXFF 0x10
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//*****************************************************************************
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//
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// Values that can be passed to UARTConfigSetExpClk as the ui32Config parameter
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// and returned by UARTConfigGetExpClk in the pui32Config parameter.
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// Additionally, the UART_CONFIG_PAR_* subset can be passed to
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// UARTParityModeSet as the ui32Parity parameter, and are returned by
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// UARTParityModeGet.
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//
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//*****************************************************************************
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#define UART_CONFIG_WLEN_MASK 0x00000007 // Mask for extracting word length
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#define UART_CONFIG_WLEN_8 0x00000007 // 8 bit data
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#define UART_CONFIG_WLEN_7 0x00000006 // 7 bit data
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#define UART_CONFIG_WLEN_6 0x00000005 // 6 bit data
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#define UART_CONFIG_WLEN_5 0x00000004 // 5 bit data
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#define UART_CONFIG_STOP_MASK 0x00000080 // Mask for extracting stop bits
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#define UART_CONFIG_STOP_ONE 0x00000000 // One stop bit
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#define UART_CONFIG_STOP_TWO 0x00000080 // Two stop bits
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#define UART_CONFIG_PAR_MASK 0x00000060 // Parity Mask
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#define UART_CONFIG_PAR_NONE 0x00000000 // No parity
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#define UART_CONFIG_PAR_EVEN 0x00000060 // Even parity
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#define UART_CONFIG_PAR_ODD 0x00000020 // Odd parity
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#define UART_CONFIG_PAR_ONE 0x00000020 // Parity bit is one
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#define UART_CONFIG_PAR_ZERO 0x00000060 // Parity bit is zero
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//*****************************************************************************
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//
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// Values that can be passed to UARTFIFOLevelSet as the ui32TxLevel parameter and
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// returned by UARTFIFOLevelGet in the pui32TxLevel.
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//
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//*****************************************************************************
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#define UART_FIFO_TX1_8 0x00000001 // Transmit interrupt at 1/4 Full
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#define UART_FIFO_TX2_8 0x00000002 // Transmit interrupt at 1/2 Full
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#define UART_FIFO_TX4_8 0x00000003 // Transmit interrupt at 3/4 Full
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#define UART_FIFO_TX6_8 0x00000004 // Transmit interrupt Full
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//*****************************************************************************
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//
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// Values that can be passed to UARTFIFOLevelSet as the ui32RxLevel parameter and
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// returned by UARTFIFOLevelGet in the pui32RxLevel.
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//
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//*****************************************************************************
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#define UART_FIFO_RX1_8 0x00000001 // Receive interrupt at 1/4 Full
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#define UART_FIFO_RX2_8 0x00000002 // Receive interrupt at 1/2 Full
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#define UART_FIFO_RX4_8 0x00000003 // Receive interrupt at 3/4 Full
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#define UART_FIFO_RX6_8 0x00000004 // Receive interrupt at Full
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//*****************************************************************************
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//
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// Values that can be passed to UARTDMAEnable() and UARTDMADisable().
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//
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//*****************************************************************************
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#define UART_DMA_ERR_RXSTOP 0x00000004 // Stop DMA receive if UART error
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#define UART_DMA_TX 0x00000002 // Enable DMA for transmit
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#define UART_DMA_RX 0x00000001 // Enable DMA for receive
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//*****************************************************************************
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//
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// Values returned from UARTRxErrorGet().
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//
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//*****************************************************************************
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#define UART_RXERROR_OVERRUN 0x00000008
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#define UART_RXERROR_BREAK 0x00000020
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#define UART_RXERROR_PARITY 0x00000004
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#define UART_RXERROR_FRAMING 0x00000010
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//*****************************************************************************
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//
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// Values that can be passed to UARTHandshakeOutputsSet() or returned from
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// UARTHandshakeOutputGet().
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//
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//*****************************************************************************
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#define UART_OUTPUT_RTS 0x00000800
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#define UART_OUTPUT_DTR 0x00000400
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//*****************************************************************************
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//
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// Values that can be returned from UARTHandshakeInputsGet().
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//
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//*****************************************************************************
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#define UART_INPUT_RI 0x00000100
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#define UART_INPUT_DCD 0x00000004
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#define UART_INPUT_DSR 0x00000002
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#define UART_INPUT_CTS 0x00000001
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//*****************************************************************************
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//
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// Values that can be passed to UARTTxIntModeSet() or returned from
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// UARTTxIntModeGet().
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//
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//*****************************************************************************
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#define UART_TXINT_MODE_FIFO_M 0x0000001F
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#define UART_TXINT_MODE_EOT 0x00000000
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//*****************************************************************************
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//
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// API Function prototypes
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//
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//*****************************************************************************
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extern void UARTParityModeSet(uint32_t ui32Base, uint32_t ui32Parity);
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extern uint32_t UARTParityModeGet(uint32_t ui32Base);
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extern void UARTFIFOIntLevelSet(uint32_t ui32Base, uint32_t ui32TxLevel,
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uint32_t ui32RxLevel);
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extern void UARTFIFOIntLevelGet(uint32_t ui32Base, uint32_t *pui32TxLevel,
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uint32_t *pui32RxLevel);
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extern void UARTFIFOLevelGet(uint32_t ui32Base, uint32_t *pui32TxLevel,
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uint32_t *pui32RxLevel);
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extern void UARTConfigSetExpClk(uint32_t ui32Base, uint32_t ui32UARTClk,
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uint32_t ui32Baud, uint32_t ui32Config);
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extern void UARTConfigGetExpClk(uint32_t ui32Base, uint32_t ui32UARTClk,
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uint32_t *pui32Baud, uint32_t *pui32Config);
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extern void UARTEnable(uint32_t ui32Base);
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extern void UARTDisable(uint32_t ui32Base);
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extern void UARTsetLoopBack(uint32_t ui32Base, bool enable);
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extern void UARTFIFOEnable(uint32_t ui32Base);
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extern void UARTFIFODisable(uint32_t ui32Base);
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extern bool UARTCharsAvail(uint32_t ui32Base);
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extern bool UARTSpaceAvail(uint32_t ui32Base);
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extern int32_t UARTCharGetNonBlocking(uint32_t ui32Base);
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extern int32_t UARTCharGet(uint32_t ui32Base);
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extern bool UARTCharPutNonBlocking(uint32_t ui32Base, unsigned char ucData);
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extern void UARTCharPut(uint32_t ui32Base, unsigned char ucData);
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extern bool UARTBusy(uint32_t ui32Base);
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extern void UARTRXIntRegister(uint32_t ui32Base, void(*pfnHandler)(void));
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extern void UARTTXIntRegister(uint32_t ui32Base, void(*pfnHandler)(void));
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extern void UARTRXIntUnregister(uint32_t ui32Base);
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extern void UARTTXIntUnregister(uint32_t ui32Base);
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extern void UARTIntEnable(uint32_t ui32Base, uint32_t ui32IntFlags);
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extern void UARTIntDisable(uint32_t ui32Base, uint32_t ui32IntFlags);
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extern uint32_t UARTIntStatus(uint32_t ui32Base, bool bMasked);
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extern void UARTIntClear(uint32_t ui32Base, uint32_t ui32IntFlags);
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extern uint32_t UARTRxErrorGet(uint32_t ui32Base);
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extern void UARTRxErrorClear(uint32_t ui32Base);
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extern void UARTTxIntModeSet(uint32_t ui32Base, uint32_t ui32Mode);
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extern uint32_t UARTTxIntModeGet(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 // __UART_H__
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