40 lines
874 B
C
40 lines
874 B
C
|
/******************************************************************************
|
||
|
|
*
|
||
|
|
* Copyright (c) 2017-2019 by Löwenware Ltd
|
||
|
|
* Please, refer LICENSE file for legal information
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @file timer.c
|
||
|
|
* @author Ilja Kartašov <ik@lowenware.com>
|
||
|
|
* @brief
|
||
|
|
*
|
||
|
|
* @see https://lowenware.com/
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <aarch64/aarch64.h>
|
||
|
|
#include <aarch64/bcm2837.h>
|
||
|
|
#include "timer.h"
|
||
|
|
#include "log.h"
|
||
|
|
|
||
|
|
const unsigned int m_interval = 200000;
|
||
|
|
unsigned int m_current = 0;
|
||
|
|
|
||
|
|
void
|
||
|
|
k_timer_init(void)
|
||
|
|
{
|
||
|
|
m_current = aarch64_get32r(TIMER_CLO);
|
||
|
|
m_current += m_interval;
|
||
|
|
aarch64_set32r(TIMER_C1, m_current);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
k_timer_irq_handler(void)
|
||
|
|
{
|
||
|
|
m_current += m_interval;
|
||
|
|
aarch64_set32r(TIMER_C1, m_current);
|
||
|
|
aarch64_set32r(TIMER_CS, TIMER_CS_M1);
|
||
|
|
k_logs("Timer interrupt\n");
|
||
|
|
}
|