79 lines
2.8 KiB
C
79 lines
2.8 KiB
C
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/**************************************************************************/
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/*!
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@file uart.h
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@author K. Townsend (microBuilder.eu)
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@date 22 March 2010
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@version 0.10
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@section LICENSE
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Software License Agreement (BSD License)
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Copyright (c) 2010, microBuilder SARL
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All rights reserved.
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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 are met:
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1. 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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2. 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 distribution.
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3. Neither the name of the copyright holders nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY 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 OF THIS
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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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#include "projectconfig.h"
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// Buffer used for circular fifo
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typedef struct _uart_buffer_t
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{
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uint8_t ep_dir;
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volatile uint8_t len;
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volatile uint8_t wr_ptr;
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volatile uint8_t rd_ptr;
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uint8_t buf[CFG_UART_BUFSIZE];
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} uart_buffer_t;
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// UART Protocol control block
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typedef struct _uart_pcb_t
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{
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BOOL initialised;
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uint32_t baudrate;
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uint32_t status;
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uint32_t pending_tx_data;
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uart_buffer_t rxfifo;
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} uart_pcb_t;
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void UART_IRQHandler(void);
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uart_pcb_t *uartGetPCB();
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void uartInit(uint32_t Baudrate);
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void uartSend(uint8_t *BufferPtr, uint32_t Length);
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void uartSendByte (uint8_t byte);
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// Rx Buffer access control
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void uartRxBufferInit();
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uint8_t uartRxBufferRead();
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void uartRxBufferWrite(uint8_t data);
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void uartRxBufferClearFIFO();
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uint8_t uartRxBufferDataPending();
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bool uartRxBufferReadArray(byte_t* rx, size_t* len);
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#endif
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