137 lines
4.1 KiB
C
137 lines
4.1 KiB
C
/*
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* Copyright (c) 2013-2020, Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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* Copyright (c) 2021 Nuclei Limited. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "los_timer.h"
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#include "los_config.h"
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#include "los_tick.h"
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#include "los_reg.h"
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#include "los_arch_interrupt.h"
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#include "los_arch_timer.h"
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#include "nuclei_sdk_hal.h"
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#define configKERNEL_INTERRUPT_PRIORITY 0
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#define SYSTICK_TICK_CONST (SOC_TIMER_FREQ / LOSCFG_BASE_CORE_TICK_PER_SECOND)
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STATIC HWI_PROC_FUNC g_sysTickHandler = (HWI_PROC_FUNC)NULL;
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extern UINT32 g_intCount;
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STATIC UINT32 SysTickStart(HWI_PROC_FUNC handler);
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STATIC UINT64 SysTickReload(UINT64 nextResponseTime);
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STATIC UINT64 SysTickCycleGet(UINT32 *period);
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STATIC VOID SysTickLock(VOID);
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STATIC VOID SysTickUnlock(VOID);
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STATIC ArchTickTimer g_archTickTimer = {
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.freq = 0,
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.irqNum = SysTimer_IRQn,
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.periodMax = LOSCFG_BASE_CORE_TICK_RESPONSE_MAX,
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.init = SysTickStart,
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.getCycle = SysTickCycleGet,
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.reload = SysTickReload,
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.lock = SysTickLock,
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.unlock = SysTickUnlock,
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.tickHandler = NULL,
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};
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STATIC UINT32 SysTickStart(HWI_PROC_FUNC handler)
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{
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ArchTickTimer *tick = &g_archTickTimer;
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tick->freq = OS_SYS_CLOCK;
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SysTick_Config(SYSTICK_TICK_CONST);
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ECLIC_DisableIRQ(SysTimer_IRQn);
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ECLIC_SetLevelIRQ(SysTimer_IRQn, configKERNEL_INTERRUPT_PRIORITY);
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ECLIC_SetShvIRQ(SysTimer_IRQn, ECLIC_NON_VECTOR_INTERRUPT);
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ECLIC_EnableIRQ(SysTimer_IRQn);
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/* Set SWI interrupt level to lowest level/priority, SysTimerSW as Vector Interrupt */
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ECLIC_SetShvIRQ(SysTimerSW_IRQn, ECLIC_VECTOR_INTERRUPT);
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ECLIC_SetLevelIRQ(SysTimerSW_IRQn, configKERNEL_INTERRUPT_PRIORITY);
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ECLIC_EnableIRQ(SysTimerSW_IRQn);
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g_intCount = 0;
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g_sysTickHandler = handler;
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return LOS_OK; /* never return */
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}
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#define ArchTickSysTickHandler eclic_mtip_handler
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void ArchTickSysTickHandler(void)
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{
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/* Do systick handler registered in HalTickStart. */
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if ((void *)g_sysTickHandler != NULL) {
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g_sysTickHandler();
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}
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}
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STATIC UINT64 SysTickReload(UINT64 nextResponseTime)
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{
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SysTick_Reload(nextResponseTime);
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return nextResponseTime;
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}
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STATIC UINT64 SysTickCycleGet(UINT32 *period)
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{
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UINT64 ticks;
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UINT32 intSave = LOS_IntLock();
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ticks = SysTimer_GetLoadValue();
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*period = (UINT32)ticks;
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LOS_IntRestore(intSave);
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return ticks;
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}
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STATIC VOID SysTickLock(VOID)
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{
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SysTimer_Stop();
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}
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STATIC VOID SysTickUnlock(VOID)
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{
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SysTimer_Start();
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}
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ArchTickTimer *ArchSysTickTimerGet(VOID)
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{
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return &g_archTickTimer;
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}
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UINT32 ArchEnterSleep(VOID)
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{
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__WFI();
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return LOS_OK;
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}
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