sys_tick_timer.h

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/* This file is part of rflpc. Copyright 2010-2011 Michael Hauspie
 *
 * rflpc is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * rflpc is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with rflpc.  If not, see <http://www.gnu.org/licenses/>.
 */
/*
  Author: Michael Hauspie <michael.hauspie@univ-lille1.fr>
  Created:
  Time-stamp: <2012-03-21 09:07:57 (hauspie)>
*/
#ifndef __RFLPC_SYS_TICK_TIMER_H__
#define __RFLPC_SYS_TICK_TIMER_H__

#ifdef RFLPC_CONFIG_ENABLE_SYS_TICK_TIMER

#include "../interrupt.h"
#include "../nxp/LPC17xx.h"

extern void rflpc_sys_timer_init();

static inline void rflpc_sys_timer_start()
{
    SysTick->CTRL |= 1;
}

static inline void rflpc_sys_timer_stop()
{
    SysTick->CTRL &= ~1UL;
}

static inline void rflpc_sys_timer_set_callback(rflpc_irq_handler_t c)
{
    /* Enable systick interrupt */
    SysTick->CTRL |= (1 << 1);

    rflpc_irq_set_handler(SysTick_IRQn, c);
}

extern void rflpc_sys_timer_set_period(uint32_t micros_time);

extern void rflpc_sys_timer_set_tick_period(uint32_t ticks);

#endif /* ENABLE_SYS_TICK_TIMER */

#endif