150 lines
4.4 KiB
C
150 lines
4.4 KiB
C
/*
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* Copyright (c) 2013-2020, Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020, Huawei Device Co., Ltd. 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_arch_context.h"
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#include "los_arch_interrupt.h"
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#include "los_arch_timer.h"
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#include "los_task.h"
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#include "los_memory.h"
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#include "los_timer.h"
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#include "soc.h"
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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LITE_OS_SEC_TEXT_INIT VOID HalArchInit(VOID)
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{
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HalHwiInit();
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}
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LITE_OS_SEC_TEXT_MINOR VOID HalSysExit(VOID)
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{
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HalIntLock();
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while (1) {
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}
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}
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LITE_OS_SEC_TEXT_INIT VOID *HalTskStackInit(UINT32 taskID, UINT32 stackSize, VOID *topStack)
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{
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UINT32 index;
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TaskContext *context = NULL;
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/* initialize the task stack, write magic num to stack top */
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for (index = 1; index < (stackSize / sizeof(UINT32)); index++) {
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*((UINT32 *)topStack + index) = OS_TASK_STACK_INIT;
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}
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*((UINT32 *)(topStack)) = OS_TASK_MAGIC_WORD;
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context = (TaskContext *)(((UINTPTR)topStack + stackSize) - sizeof(TaskContext));
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context->mstatus = RISCV_MSTATUS_MPP | RISCV_MSTATUS_MPIE;
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context->mepc = (UINT32)(UINTPTR)OsTaskEntry;
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context->tp = TP_INIT_VALUE;
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context->sp = SP_INIT_VALUE;
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context->s11 = S11_INIT_VALUE;
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context->s10 = S10_INIT_VALUE;
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context->s9 = S9_INIT_VALUE;
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context->s8 = S8_INIT_VALUE;
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context->s7 = S7_INIT_VALUE;
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context->s6 = S6_INIT_VALUE;
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context->s5 = S5_INIT_VALUE;
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context->s4 = S4_INIT_VALUE;
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context->s3 = S3_INIT_VALUE;
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context->s2 = S2_INIT_VALUE;
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context->s1 = S1_INIT_VALUE;
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context->s0 = FP_INIT_VALUE;
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context->t6 = T6_INIT_VALUE;
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context->t5 = T5_INIT_VALUE;
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context->t4 = T4_INIT_VALUE;
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context->t3 = T3_INIT_VALUE;
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context->a7 = A7_INIT_VALUE;
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context->a6 = A6_INIT_VALUE;
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context->a5 = A5_INIT_VALUE;
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context->a4 = A4_INIT_VALUE;
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context->a3 = A3_INIT_VALUE;
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context->a2 = A2_INIT_VALUE;
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context->a1 = A1_INIT_VALUE;
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context->a0 = taskID;
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context->t2 = T2_INIT_VALUE;
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context->t1 = T1_INIT_VALUE;
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context->t0 = T0_INIT_VALUE;
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context->ra = (UINT32)(UINTPTR)HalSysExit;
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return (VOID *)context;
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}
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LITE_OS_SEC_TEXT_INIT UINT32 HalStartSchedule(OS_TICK_HANDLER handler)
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{
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UINT32 ret;
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ret = HalTickStart(handler);
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if (ret != LOS_OK) {
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return ret;
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}
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HalStartToRun();
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return LOS_OK; /* never return */
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}
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LITE_OS_SEC_TEXT VOID HalTaskScheduleCheck(VOID)
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{
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#if (LOSCFG_BASE_CORE_TSK_MONITOR == 1)
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OsTaskSwitchCheck();
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#endif
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return;
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}
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LITE_OS_SEC_TEXT VOID wfi(VOID)
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{
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__asm__ __volatile__("wfi");
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}
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LITE_OS_SEC_TEXT VOID mb(VOID)
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{
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__asm__ __volatile__("fence":::"memory");
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}
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LITE_OS_SEC_TEXT VOID dsb(VOID)
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{
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__asm__ __volatile__("fence":::"memory");
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}
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VOID HalEnterSleep(LOS_SysSleepEnum sleep)
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{
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wfi();
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}
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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