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los_init.c
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wenjun   add OpenHarmony 1.0 baseline 2020-09-08
/* * Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved. * Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this list of *    conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, this list *    of conditions and the following disclaimer in the documentation and/or other materials *    provided with the distribution. * * 3. Neither the name of the copyright holder nor the names of its contributors may be used *    to endorse or promote products derived from this software without specific prior written *    permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */#include "los_sys.h"#include "los_tick.h"#include "los_task_pri.h"#include "los_tick_pri.h"#include "los_config.h"#if (LOSCFG_KERNEL_RUNSTOP == YES)#include "los_sr.h"#endif#if (LOSCFG_PLATFORM_EXC == YES)#include "los_exc_pri.h"#endif#if (LOSCFG_KERNEL_TRACE == YES)#include "los_trace.h"#endif#if (LOSCFG_KERNEL_CPPSUPPORT == YES)#include "los_cppsupport.h"#endif#ifdef __cplusplus#if __cplusplusextern "C" {#endif /* __cpluscplus */#endif /* __cpluscplus */UINT8 *m_aucSysMem0;#if (LOSCFG_PLATFORM_EXC == YES)UINT8 g_aucTaskArray[MAX_EXC_MEM_SIZE];#endif#define FPU_ENABLE ((3UL << 20) | (3UL << 22))VOID OsEnableFPU(VOID){    *(volatile UINT32 *)0xE000ED88 |= FPU_ENABLE; /* CPACR is located at address 0xE000ED88. */}/***************************************************************************** Function    : LOS_Reboot Description : system exception, die in here, wait for watchdog. Input       : None Output      : None Return      : None *****************************************************************************/LITE_OS_SEC_TEXT_INIT VOID LOS_Reboot(VOID){    (VOID)LOS_IntLock();    while (1) {    }}/***************************************************************************** Function    : OsRegister Description : Configuring the maximum number of tasks Input       : None Output      : None Return      : None *****************************************************************************/LITE_OS_SEC_TEXT_INIT static VOID OsRegister(VOID){    g_taskMaxNum = LOSCFG_BASE_CORE_TSK_LIMIT + 1; /* Reserved 1 for IDLE */    return;}/***************************************************************************** Function    : LOS_Start Description : Task start function. Input       : None Output      : None Return      : LOS_OK on success or error code on failure *****************************************************************************/LITE_OS_SEC_TEXT_INIT UINT32 LOS_Start(VOID){    UINT32 ret;#if (LOSCFG_BASE_CORE_TICK_HW_TIME == NO)    ret = OsTickStart();    if (ret != LOS_OK) {        PRINT_ERR("OsTickStart error\n");        return ret;    }#else    ret = os_timer_init();    if (ret != LOS_OK) {        PRINT_ERR("os_timer_init error\n");        return ret;    }#endif    LOS_StartToRun();    return ret;}/***************************************************************************** Function    : LOS_KernelInit Description : System kernel initialization function, configure all system modules Input       : None Output      : None Return      : LOS_OK on success or error code on failure *****************************************************************************/LITE_OS_SEC_TEXT_INIT UINT32 LOS_KernelInit(VOID){    UINT32 ret;    OsRegister();    m_aucSysMem0 = (UINT8 *)OS_SYS_MEM_ADDR;    g_sysMemAddrEnd = ((UINT32)OS_SYS_MEM_ADDR + OS_SYS_MEM_SIZE);    ret = OsMemSystemInit();    if (ret != LOS_OK) {        PRINT_ERR("OsMemSystemInit error %d\n", ret);        return ret;    }#if (LOSCFG_PLATFORM_HWI == YES)    OsHwiInit();#endif#if (LOSCFG_PLATFORM_EXC == YES)    OsExcInit(MAX_EXC_MEM_SIZE);#endif    ret = OsTaskInit();    if (ret != LOS_OK) {        PRINT_ERR("OsTaskInit error\n");        return ret;    }#if (LOSCFG_BASE_CORE_TSK_MONITOR == YES)        OsTaskMonInit();#endif#if (LOSCFG_BASE_CORE_CPUP == YES)    ret = OsCpupInit();    if (ret != LOS_OK) {        PRINT_ERR("OsCpupInit error\n");        return ret;    }#endif#if (LOSCFG_BASE_IPC_SEM == YES)    ret = OsSemInit();    if (ret != LOS_OK) {        return ret;    }#endif#if (LOSCFG_BASE_IPC_MUX == YES)    ret = OsMuxInit();    if (ret != LOS_OK) {        return ret;    }#endif#if (LOSCFG_BASE_IPC_QUEUE == YES)    ret = OsQueueInit();    if (ret != LOS_OK) {        PRINT_ERR("OsQueueInit error\n");        return ret;    }#endif#if (LOSCFG_BASE_CORE_SWTMR == YES)    ret = OsSwtmrInit();    if (ret != LOS_OK) {        PRINT_ERR("OsSwtmrInit error\n");        return ret;    }#endif#if (LOSCFG_BASE_CORE_TIMESLICE == YES)    OsTimesliceInit();#endif    ret = OsIdleTaskCreate();    if (ret != LOS_OK) {        return ret;    }#if (LOSCFG_KERNEL_TRACE == YES)    ret = LOS_TraceInit();    if (ret != LOS_OK) {        PRINT_ERR("LOS_TraceInit error\n");        return ret;    }#endif#if (LOSCFG_KERNEL_CPPSUPPORT == YES)     extern char __init_array_start,__init_array_end;     LOS_CppSystemInit((UINTPTR)&__init_array_start,(UINTPTR)&__init_array_end);#endif#ifdef LOSCFG_TEST    ret = los_TestInit();    if (ret != LOS_OK) {        PRINT_ERR("los_TestInit error\n");        return ret;    }#endif    return LOS_OK;}#ifdef __cplusplus#if __cplusplus}#endif /* __cpluscplus */#endif /* __cpluscplus */
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