mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-23 16:29:34 +00:00
115 lines
3.7 KiB
C
115 lines
3.7 KiB
C
/*
|
|
* Contiki PIC32 Port project
|
|
*
|
|
* Copyright (c) 2012,
|
|
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
|
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
|
* (http://www.cnit.it).
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. 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.
|
|
* 3. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* \addtogroup pic32 PIC32 Contiki Port
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* \file pic32_spi.h
|
|
* \brief SPI interface for PIC32MX (pic32mx795f512l)
|
|
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
|
* \date 2012-03-21
|
|
*/
|
|
|
|
/*
|
|
* PIC32MX795F512L - Specific Functions
|
|
*
|
|
* All the functions in this part of the file are specific for the
|
|
* pic32mx795f512l that is characterized by registers' name that differ from
|
|
* the 3xx and 4xx families of the pic32mx.
|
|
*/
|
|
|
|
#ifndef __INCLUDE_PIC32_SPI_H__
|
|
#define __INCLUDE_PIC32_SPI_H__
|
|
|
|
#ifdef __USE_SPI__
|
|
|
|
#include <p32xxxx.h>
|
|
|
|
#include <stdint.h>
|
|
|
|
/* Returned Messages */
|
|
#define SPI_NO_ERRORS 0
|
|
#define SPI_ERR_BAD_PORT 1
|
|
#define SPI_ERR_BAD_ARGS 2
|
|
#define SPI_ERR_BUSY 3
|
|
#define SPI_ERR_UNIMPLEMENTED 10
|
|
|
|
/*
|
|
* Configuration Flags
|
|
* NOTE: this work under the assumption that all the SPI ports have the same
|
|
* control register specification. See pic32mx family reference manual.
|
|
*/
|
|
|
|
#define SPI_MASTER 0b00000000000000000000000000100000
|
|
#define SPI_CLOCK_IDLE_HIGH 0b00000000000000000000000001000000
|
|
#define SPI_SDO_ON_CLOCK_TO_IDLE 0b00000000000000000000000100000000
|
|
#define SPI_SDI_ON_CLOCK_END 0b00000000000000000000001000000000
|
|
|
|
/* Other Flags */
|
|
#define SPI_DEFAULT (SPI_MASTER | SPI_SDO_ON_CLOCK_TO_IDLE)
|
|
|
|
#define SPI_DEF(XX) \
|
|
int8_t pic32_spi##XX##_init(uint32_t baudrate, uint32_t flags); \
|
|
int8_t pic32_spi##XX##_close(); \
|
|
int8_t pic32_spi##XX##_write(const uint8_t *data, uint32_t len);\
|
|
int8_t pic32_spi##XX##_read(uint8_t *data, uint32_t len);
|
|
|
|
#ifdef __USE_SPI_PORT1__
|
|
SPI_DEF(1)
|
|
#endif /* __USE_SPI_PORT1__ */
|
|
|
|
#ifdef __USE_SPI_PORT1A__
|
|
SPI_DEF(1A)
|
|
#endif /* __USE_SPI_PORT1A__ */
|
|
|
|
#ifdef __USE_SPI_PORT2A__
|
|
SPI_DEF(2A)
|
|
#endif /* __USE_SPI_PORT2A__ */
|
|
|
|
#ifdef __USE_SPI_PORT3A__
|
|
SPI_DEF(3A)
|
|
#endif /* __USE_SPI_PORT3A__ */
|
|
|
|
#endif /* __USE_SPI__ */
|
|
|
|
#endif /* __INCLUDE_PIC32_SPI_H__ */
|
|
|
|
/** @} */
|