2012-12-17 09:14:23 +01:00
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/*
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* Contiki PIC32 Port project
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*
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* Copyright (c) 2012,
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* Scuola Superiore Sant'Anna (http://www.sssup.it) and
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* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
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* (http://www.cnit.it).
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*
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* All rights reserved.
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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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* 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 Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/**
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* \addtogroup pic32 PIC32 Contiki Port
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*
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* @{
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*/
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/**
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* \file pic32_uart.h
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* \brief UART Interface for PIC32MX (pic32mx795f512l)
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* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
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* \date 2012-03-21
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*/
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/*
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* PIC32MX795F512L - Specific Functions
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*
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* All the functions in this part of the file are specific for the
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* pic32mx795f512l that is characterized by registers' name that differ from
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* the 3xx and 4xx families of the pic32mx.
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*/
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#ifndef __INCLUDE_PIC32_UART_H__
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#define __INCLUDE_PIC32_UART_H__
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#ifdef __USE_UART__
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#include <pic32_irq.h>
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#include <p32xxxx.h>
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#include <stdint.h>
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#define BAUD2UBR(x) x
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/* Returned Messages */
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#define UART_NO_ERROR 0
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#define UART_ERR_NO_DATA 1
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#define UART_ERR_OVERFLOW 2
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#define UART_PORT_DEF(XX) \
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int8_t pic32_uart##XX##_init(uint32_t baudrate, uint16_t byte_format); \
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int8_t pic32_uart##XX##_write(uint8_t data);
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#define UART_INTERRUPT(XX, Y, CALLBACK) \
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ISR(_UART_##XX##_VECTOR) \
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{ \
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volatile uint8_t byte; \
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2012-12-21 12:36:29 +01:00
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if(IFS##Y##bits.U##XX##RXIF) { \
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if((U##XX##STAbits.PERR == 0) && (U##XX##STAbits.FERR == 0)) { \
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2012-12-17 09:14:23 +01:00
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CALLBACK(U##XX##RXREG); \
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} else { \
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byte = U##XX##RXREG; /* NULL READ */ \
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} \
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IFS##Y##CLR = _IFS##Y##_U##XX##RXIF_MASK; \
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} \
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2012-12-21 12:36:29 +01:00
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if(U##XX##STAbits.OERR) { \
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2012-12-17 09:14:23 +01:00
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U##XX##STACLR = _U##XX##STA_OERR_MASK; \
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} \
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}
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#ifdef __USE_UART_PORT1A__
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UART_PORT_DEF(1A)
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#endif /* __USE_UART_PORT1A__ */
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#ifdef __USE_UART_PORT1B__
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UART_PORT_DEF(1B)
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#endif /* __USE_UART_PORT1B__ */
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#ifdef __USE_UART_PORT2A__
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UART_PORT_DEF(2A)
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#endif /* __USE_UART_PORT2A__ */
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#ifdef __USE_UART_PORT2B__
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UART_PORT_DEF(2B)
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#endif /* __USE_UART_PORT2B__ */
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#ifdef __USE_UART_PORT3A__
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UART_PORT_DEF(3A)
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#endif /* __USE_UART_PORT3A__ */
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#ifdef __USE_UART_PORT3B__
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UART_PORT_DEF(3B)
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#endif /* __USE_UART_PORT3B__ */
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#endif /* __USE_UART__ */
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#endif /* __INCLUDE_PIC32_UART_H__ */
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/** @} */
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