osd-contiki/cpu/pic32/lib/pic32_timer.h
2012-12-17 09:14:23 +01:00

144 lines
4.6 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_timer.h
* \brief TIMER interface for PIC32MX (pic32mx795f512l)
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
* \date 2012-03-26
*/
/*
* 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_TIMER_H__
#define __INCLUDE_PIC32_TIMER_H__
#ifdef __USE_TIMER__
#include <pic32_irq.h>
#include <p32xxxx.h>
#include <stdint.h>
#define TIMER_NO_ERRORS 0
#define TIMER_ERR_BAD_ARGS 1
#define TIMER_A_PRESCALE_1 0b00
#define TIMER_A_PRESCALE_8 0b01
#define TIMER_A_PRESCALE_64 0b10
#define TIMER_A_PRESCALE_256 0b11
#define TIMER_B_PRESCALE_1 0b000
#define TIMER_B_PRESCALE_2 0b001
#define TIMER_B_PRESCALE_4 0b010
#define TIMER_B_PRESCALE_8 0b011
#define TIMER_B_PRESCALE_16 0b100
#define TIMER_B_PRESCALE_32 0b101
#define TIMER_B_PRESCALE_64 0b110
#define TIMER_B_PRESCALE_256 0b111
#define TIMERN_16_DEF(X) \
uint8_t pic32_timer##X##_init(uint32_t frequency); \
void pic32_timer##X##_enable_irq(void); \
void pic32_timer##X##_disable_irq(void); \
void pic32_timer##X##_start(void); \
void pic32_timer##X##_stop(void); \
uint16_t pic32_timer##X##_get_val(void);
#define TIMERN_32_DEF(XY) \
uint8_t pic32_timer##XY##_init(uint32_t frequency);\
void pic32_timer##XY##_enable_irq(void); \
void pic32_timer##XY##_disable_irq(void); \
void pic32_timer##XY##_start(void); \
void pic32_timer##XY##_stop(void); \
uint32_t pic32_timer##XY##_get_val(void);
#define TIMER_INTERRUPT(XX, CALLBACK) \
TIMER_ISR(_TIMER_##XX##_VECTOR) \
{ \
ENERGEST_ON(ENERGEST_TYPE_IRQ); \
CALLBACK(); \
ENERGEST_OFF(ENERGEST_TYPE_IRQ); \
IFS0CLR = _IFS0_T##XX##IF_MASK; \
}
#ifdef __USE_TIMER_1__
TIMERN_16_DEF(1)
#endif /* __USE_TIMER_1__ */
#if defined(__USE_TIMER_2__) || defined(__USE_TIMER_23__)
TIMERN_16_DEF(2)
#endif /* __USE_TIMER_2__ */
#if defined(__USE_TIMER_3__) || defined(__USE_TIMER_23__)
TIMERN_16_DEF(3)
#endif /* __USE_TIMER_3__ */
#if defined(__USE_TIMER_4__) || defined(__USE_TIMER_45__)
TIMERN_16_DEF(4)
#endif /* __USE_TIMER_4__ */
#if defined(__USE_TIMER_5__) || defined(__USE_TIMER_45__)
TIMERN_16_DEF(5)
#endif /* __USE_TIMER_5__ */
#ifdef __USE_TIMER_23__
TIMERN_32_DEF(23)
#endif /* __USE_TIMER_23__ */
#ifdef __USE_TIMER_45__
TIMERN_32_DEF(45)
#endif /* __USE_TIMER_45__ */
#endif /* __USE_TIMER__ */
#endif /* __INCLUDE_PIC32_TIMER_H__ */
/** @} */