74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/* current-time.c
|
|
*
|
|
* Copyright (C) 2006-2020 wolfSSL Inc.
|
|
*
|
|
* This file is part of wolfSSL.
|
|
*
|
|
* wolfSSL 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.
|
|
*
|
|
* wolfSSL 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 02110-1335, USA
|
|
*/
|
|
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#include <wolfssl/wolfcrypt/settings.h>
|
|
|
|
#ifdef WOLFSSL_TI_CURRTIME
|
|
#include <stdio.h>
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
|
|
#include "inc/hw_ints.h"
|
|
#include "inc/hw_memmap.h"
|
|
#include "inc/hw_timer.h"
|
|
#include "driverlib/rom.h"
|
|
#include "driverlib/sysctl.h"
|
|
#include "driverlib/timer.h"
|
|
|
|
void InitTimer(void) {
|
|
uint32_t ui32SysClock = ROM_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |
|
|
SYSCTL_OSC_MAIN |
|
|
SYSCTL_USE_PLL |
|
|
SYSCTL_CFG_VCO_480), 120000000);
|
|
|
|
printf("Clock=%dMHz\n", (int)(ui32SysClock/1000000));
|
|
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER0);
|
|
ROM_TimerConfigure(TIMER0_BASE, TIMER_CFG_PERIODIC);
|
|
ROM_TimerLoadSet(TIMER0_BASE, TIMER_A, -1);
|
|
ROM_TimerEnable(TIMER0_BASE, TIMER_A);
|
|
}
|
|
|
|
static int initFlag = false ;
|
|
double current_time(int reset)
|
|
{
|
|
if(!initFlag)InitTimer() ;
|
|
initFlag = true ;
|
|
if(reset)ROM_TimerLoadSet(TIMER0_BASE, TIMER_A, -1);
|
|
return (double)(-(int)ROM_TimerValueGet(TIMER0_BASE, TIMER_A ))/120000000.0 ;
|
|
}
|
|
|
|
#else
|
|
|
|
/* dummy */
|
|
double current_time(int reset) {
|
|
static double t;
|
|
t += 1.0; /* for avoid infinite loop of waiting time */
|
|
if(reset)t = 0.0;
|
|
return t ;
|
|
}
|
|
|
|
#endif
|