rt-thread/bsp/fh8620/libraries/driverlib/fh_timer.c

145 lines
4.0 KiB
C

/*
* This file is part of FH8620 BSP for RT-Thread distribution.
*
* Copyright (c) 2016 Shanghai Fullhan Microelectronics Co., Ltd.
* All rights reserved
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Visit http://www.fullhan.com to get contact with Fullhan.
*
* Change Logs:
* Date Author Notes
*/
/*****************************************************************************
* Include Section
* add all #include here
*****************************************************************************/
#include "inc/fh_driverlib.h"
/*****************************************************************************
* Define section
* add all #define here
*****************************************************************************/
/****************************************************************************
* ADT section
* add definition of user defined Data Type that only be used in this file here
***************************************************************************/
/******************************************************************************
* Function prototype section
* add prototypes for all functions called by this file,execepting those
* declared in header file
*****************************************************************************/
/*****************************************************************************
* Global variables section - Exported
* add declaration of global variables that will be exported here
* e.g.
* int8_t foo;
****************************************************************************/
/*****************************************************************************
* Global variables section - Local
* define global variables(will be refered only in this file) here,
* static keyword should be used to limit scope of local variable to this file
* e.g.
* static uint8_t ufoo;
*****************************************************************************/
/* function body */
/*****************************************************************************
* Description:
* add funtion description here
* Parameters:
* description for each argument, new argument starts at new line
* Return:
* what does this function returned?
*****************************************************************************/
int timer_init(timer *tim)
{
tim->TIMER_CTRL_REG = 0;
}
int timer_set_mode(timer *tim, enum timer_mode mode)
{
switch (mode)
{
case TIMER_MODE_PERIODIC:
tim->TIMER_CTRL_REG |= TIMER_CTRL_MODE;
break;
case TIMER_MODE_ONESHOT:
tim->TIMER_CTRL_REG |= TIMER_CTRL_MODE;
break;
default:
rt_kprintf("Not support TIMER mode\n");
return -1;
break;
}
return 0;
}
void timer_set_period(timer *tim, UINT32 period, UINT32 clock)
{
tim->TIMER_LOAD_COUNT = clock/period;
}
void timer_enable(timer *tim)
{
tim->TIMER_CTRL_REG |= TIMER_CTRL_ENABLE;
}
void timer_disable(timer *tim)
{
tim->TIMER_CTRL_REG &= ~TIMER_CTRL_ENABLE;
}
void timer_enable_irq(timer *tim)
{
tim->TIMER_CTRL_REG &= ~TIMER_CTRL_INTMASK;
}
void timer_disable_irq(timer *tim)
{
tim->TIMER_CTRL_REG |= TIMER_CTRL_INTMASK;
}
UINT32 timer_get_status(timer *tim)
{
return tim->TIMER_INT_STATUS;
}
UINT32 timer_get_eoi(timer *tim)
{
return tim->TIMER_EOI;
}
UINT32 timer_get_value(timer *tim)
{
return tim->TIMER_LOAD_COUNT - tim->TIMER_CURRENT_VALUE;
}