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- /******************************************************************************
- * Filename: uart.h
- * Revised: $Date: 2013-04-16 12:01:40 +0200 (Tue, 16 Apr 2013) $
- * Revision: $Revision: 9777 $
- *
- * Description: Defines and Macros for the UART.
- *
- * Copyright (C) 2012 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 __UART_H__
- #define __UART_H__
- //*****************************************************************************
- //
- // If building with a C++ compiler, make all of the definitions in this header
- // have a C binding.
- //
- //*****************************************************************************
- #ifdef __cplusplus
- extern "C"
- {
- #endif
- #include "hw_types.h"
- //*****************************************************************************
- //
- // Values that can be passed to UARTIntEnable, UARTIntDisable, and UARTIntClear
- // as the ui32IntFlags parameter, and returned from UARTIntStatus.
- //
- //*****************************************************************************
- #define UART_INT_9BIT 0x1000 // 9-bit address match interrupt
- #define UART_INT_OE 0x400 // Overrun Error Interrupt Mask
- #define UART_INT_BE 0x200 // Break Error Interrupt Mask
- #define UART_INT_PE 0x100 // Parity Error Interrupt Mask
- #define UART_INT_FE 0x080 // Framing Error Interrupt Mask
- #define UART_INT_RT 0x040 // Receive Timeout Interrupt Mask
- #define UART_INT_TX 0x020 // Transmit Interrupt Mask
- #define UART_INT_RX 0x010 // Receive Interrupt Mask
- #define UART_INT_CTS 0x002 // CTS Modem Interrupt Mask (only
- // UART1)
- //*****************************************************************************
- //
- // Values that can be passed to UARTConfigSetExpClk as the ui32Config parameter
- // and returned by UARTConfigGetExpClk in the pui32Config parameter.
- // Additionally, the UART_CONFIG_PAR_* subset can be passed to
- // UARTParityModeSet as the ui32Parity parameter, and are returned by
- // UARTParityModeGet.
- //
- //*****************************************************************************
- #define UART_CONFIG_WLEN_MASK 0x00000060 // Mask for extracting word length
- #define UART_CONFIG_WLEN_8 0x00000060 // 8 bit data
- #define UART_CONFIG_WLEN_7 0x00000040 // 7 bit data
- #define UART_CONFIG_WLEN_6 0x00000020 // 6 bit data
- #define UART_CONFIG_WLEN_5 0x00000000 // 5 bit data
- #define UART_CONFIG_STOP_MASK 0x00000008 // Mask for extracting stop bits
- #define UART_CONFIG_STOP_ONE 0x00000000 // One stop bit
- #define UART_CONFIG_STOP_TWO 0x00000008 // Two stop bits
- #define UART_CONFIG_PAR_MASK 0x00000086 // Mask for extracting parity
- #define UART_CONFIG_PAR_NONE 0x00000000 // No parity
- #define UART_CONFIG_PAR_EVEN 0x00000006 // Even parity
- #define UART_CONFIG_PAR_ODD 0x00000002 // Odd parity
- #define UART_CONFIG_PAR_ONE 0x00000082 // Parity bit is one
- #define UART_CONFIG_PAR_ZERO 0x00000086 // Parity bit is zero
- //*****************************************************************************
- //
- // Values that can be passed to UARTFIFOLevelSet as the ui32TxLevel parameter and
- // returned by UARTFIFOLevelGet in the pui32TxLevel.
- //
- //*****************************************************************************
- #define UART_FIFO_TX1_8 0x00000000 // Transmit interrupt at 1/8 Full
- #define UART_FIFO_TX2_8 0x00000001 // Transmit interrupt at 1/4 Full
- #define UART_FIFO_TX4_8 0x00000002 // Transmit interrupt at 1/2 Full
- #define UART_FIFO_TX6_8 0x00000003 // Transmit interrupt at 3/4 Full
- #define UART_FIFO_TX7_8 0x00000004 // Transmit interrupt at 7/8 Full
- //*****************************************************************************
- //
- // Values that can be passed to UARTFIFOLevelSet as the ui32RxLevel parameter and
- // returned by UARTFIFOLevelGet in the pui32RxLevel.
- //
- //*****************************************************************************
- #define UART_FIFO_RX1_8 0x00000000 // Receive interrupt at 1/8 Full
- #define UART_FIFO_RX2_8 0x00000008 // Receive interrupt at 1/4 Full
- #define UART_FIFO_RX4_8 0x00000010 // Receive interrupt at 1/2 Full
- #define UART_FIFO_RX6_8 0x00000018 // Receive interrupt at 3/4 Full
- #define UART_FIFO_RX7_8 0x00000020 // Receive interrupt at 7/8 Full
- //*****************************************************************************
- //
- // Values that can be passed to UARTDMAEnable() and UARTDMADisable().
- //
- //*****************************************************************************
- #define UART_DMA_ERR_RXSTOP 0x00000004 // Stop DMA receive if UART error
- #define UART_DMA_TX 0x00000002 // Enable DMA for transmit
- #define UART_DMA_RX 0x00000001 // Enable DMA for receive
- //*****************************************************************************
- //
- // Values returned from UARTRxErrorGet().
- //
- //*****************************************************************************
- #define UART_RXERROR_OVERRUN 0x00000008
- #define UART_RXERROR_BREAK 0x00000004
- #define UART_RXERROR_PARITY 0x00000002
- #define UART_RXERROR_FRAMING 0x00000001
- //*****************************************************************************
- //
- // Values that can be passed to UARTTxIntModeSet() or returned from
- // UARTTxIntModeGet().
- //
- //*****************************************************************************
- #define UART_TXINT_MODE_FIFO 0x00000000
- #define UART_TXINT_MODE_EOT 0x00000010
- //*****************************************************************************
- //
- // Values that can be passed to UARTClockSourceSet() or returned from
- // UARTClockSourceGet().
- //
- //*****************************************************************************
- #define UART_CLOCK_SYSTEM 0x00000000
- #define UART_CLOCK_PIOSC 0x00000001
- //*****************************************************************************
- //
- // API Function prototypes
- //
- //*****************************************************************************
- extern void UARTParityModeSet(uint32_t ui32Base, uint32_t ui32Parity);
- extern uint32_t UARTParityModeGet(uint32_t ui32Base);
- extern void UARTFIFOLevelSet(uint32_t ui32Base, uint32_t ui32TxLevel,
- uint32_t ui32RxLevel);
- extern void UARTFIFOLevelGet(uint32_t ui32Base, uint32_t *pui32TxLevel,
- uint32_t *pui32RxLevel);
- extern void UARTConfigSetExpClk(uint32_t ui32Base, uint32_t ui32UARTClk,
- uint32_t ui32Baud, uint32_t ui32Config);
- extern void UARTConfigGetExpClk(uint32_t ui32Base, uint32_t ui32UARTClk,
- uint32_t *pui32Baud,
- uint32_t *pui32Config);
- extern void UARTEnable(uint32_t ui32Base);
- extern void UARTDisable(uint32_t ui32Base);
- extern void UARTFIFOEnable(uint32_t ui32Base);
- extern void UARTFIFODisable(uint32_t ui32Base);
- extern void UARTEnableSIR(uint32_t ui32Base, bool bLowPower);
- extern void UARTDisableSIR(uint32_t ui32Base);
- extern bool UARTCharsAvail(uint32_t ui32Base);
- extern bool UARTSpaceAvail(uint32_t ui32Base);
- extern int32_t UARTCharGetNonBlocking(uint32_t ui32Base);
- extern int32_t UARTCharGet(uint32_t ui32Base);
- extern bool UARTCharPutNonBlocking(uint32_t ui32Base,
- uint8_t ui8Data);
- extern void UARTCharPut(uint32_t ui32Base, uint8_t ui8Data);
- extern void UARTBreakCtl(uint32_t ui32Base, bool bBreakState);
- extern bool UARTBusy(uint32_t ui32Base);
- extern void UARTIntRegister(uint32_t ui32Base, void (*pfnHandler)(void));
- extern void UARTIntUnregister(uint32_t ui32Base);
- extern void UARTIntEnable(uint32_t ui32Base, uint32_t ui32IntFlags);
- extern void UARTIntDisable(uint32_t ui32Base, uint32_t ui32IntFlags);
- extern uint32_t UARTIntStatus(uint32_t ui32Base, bool bMasked);
- extern void UARTIntClear(uint32_t ui32Base, uint32_t ui32IntFlags);
- extern void UARTDMAEnable(uint32_t ui32Base, uint32_t ui32DMAFlags);
- extern void UARTDMADisable(uint32_t ui32Base, uint32_t ui32DMAFlags);
- extern uint32_t UARTRxErrorGet(uint32_t ui32Base);
- extern void UARTRxErrorClear(uint32_t ui32Base);
- extern void UARTTxIntModeSet(uint32_t ui32Base, uint32_t ui32Mode);
- extern uint32_t UARTTxIntModeGet(uint32_t ui32Base);
- extern void UARTClockSourceSet(uint32_t ui32Base, uint32_t ui32Source);
- extern uint32_t UARTClockSourceGet(uint32_t ui32Base);
- extern void UART9BitEnable(uint32_t ui32Base);
- extern void UART9BitDisable(uint32_t ui32Base);
- extern void UART9BitAddrSet(uint32_t ui32Base, uint8_t ui8Addr,
- uint8_t ui8Mask);
- extern void UART9BitAddrSend(uint32_t ui32Base, uint8_t ui8Addr);
- //*****************************************************************************
- //
- // Mark the end of the C bindings section for C++ compilers.
- //
- //*****************************************************************************
- #ifdef __cplusplus
- }
- #endif
- #endif // __UART_H__
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