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/*
* Copyright (c) 2022 OpenLuat & AirM2M
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "bl_inc.h"
volatile static uint64_t PowerOnTickCnt;
volatile static uint64_t prvPeriod;
//
static void SystemTickIrqHandler( int32_t Line, void *pData)
{
volatile uint32_t clr;
clr = TIMM0->TIM[CORE_TICK_TIM].EOI;
PowerOnTickCnt += prvPeriod;
}
uint64_t GetSysTick(void)
{
volatile uint32_t clr;
volatile uint64_t PowerOnTick;
ISR_OnOff(CORE_TICK_IRQ, 0);
PowerOnTick = PowerOnTickCnt + prvPeriod - TIMM0->TIM[CORE_TICK_TIM].CurrentValue;
if (TIMM0->TIM[CORE_TICK_TIM].IntStatus)
{
ISR_OnOff(CORE_TICK_IRQ, 1);
while(TIMM0->TIM[CORE_TICK_TIM].IntStatus){;}
PowerOnTick = PowerOnTickCnt + prvPeriod - TIMM0->TIM[CORE_TICK_TIM].CurrentValue;
}
ISR_OnOff(CORE_TICK_IRQ, 1);
return PowerOnTick;
}
uint64_t GetSysTickUS(void)
{
return GetSysTick()/CORE_TICK_1US;
}
uint64_t GetSysTickMS(void)
{
return GetSysTick()/CORE_TICK_1MS;
}
void SysTickDelay(uint32_t Tick)
{
uint64_t Tick1 = GetSysTick();
uint64_t Tick2 = Tick1 + Tick;
while(Tick2 > GetSysTick()){;}
return;
}
void SysTickDelayUntil(uint64_t StartTick, uint32_t Tick)
{
uint64_t Tick1 = StartTick + Tick;
while(Tick1 > GetSysTick()){;}
return;
}
uint8_t SysTickCheckTimeout(uint64_t StartTick, uint32_t Tick)
{
uint64_t Tick1 = StartTick + Tick;
if (Tick1 > GetSysTick())
{
return 0;
}
return 1;
}
void CoreTick_Init(void)
{
prvPeriod = SystemCoreClock;
TIMM0->TIM[CORE_TICK_TIM].ControlReg = 0;
TIMM0->TIM[CORE_TICK_TIM].LoadCount = prvPeriod - 1;
TIMM0->TIM[CORE_TICK_TIM].ControlReg = TIMER_CONTROL_REG_TIMER_ENABLE|TIMER_CONTROL_REG_TIMER_MODE;
ISR_OnOff(CORE_TICK_IRQ, 0);
ISR_SetHandler(CORE_TICK_IRQ, SystemTickIrqHandler, NULL);
ISR_SetPriority(CORE_TICK_IRQ, CORE_TICK_IRQ_LEVEL);
ISR_OnOff(CORE_TICK_IRQ, 1);
}
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