text: /*----------------------------------------------------------------------------
   * Copyright (c) <2013-2015>, <Huawei Technologies 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.
   *---------------------------------------------------------------------------*/
  /*----------------------------------------------------------------------------
   * Notice of Export Control Law
   * ===============================================
   * Huawei LiteOS may be subject to applicable export control laws and regulations, which might
   * include those applicable to Huawei LiteOS of U.S. and the country in which you are located.
   * Import, export and usage of Huawei LiteOS in any manner by you shall be in compliance with such
   * applicable export control laws and regulations.
   *---------------------------------------------------------------------------*/
  
  #include "los_sys.h"
  #include "los_tick.h"
  #include "los_task.ph"
  #include "los_config.h"
  
  #ifdef __cplusplus
  #if __cplusplus
  extern "C" {
  #endif /* __cpluscplus */
  #endif /* __cpluscplus */
  
  #pragma data_alignment=8
  UINT8 *m_aucSysMem0;
  UINT32 g_sys_mem_addr_end = 0;
  extern UINT8 g_ucMemStart[];
  extern UINT32 osTickInit(UINT32 uwSystemClock, UINT32 uwTickPerSecond);
  extern UINT32   g_uwTskMaxNum;
  
  void osEnableFPU(void)
  {
      *(volatile UINT32 *)0xE000ED88 |= ((3UL << 10*2)|(3UL << 11*2));
      //SCB->CPACR |= ((3UL << 10*2)|(3UL << 11*2));
  }
  /*****************************************************************************
   Function    : osRegister
   Description : Configuring the maximum number of tasks
   Input       : None
   Output      : None
   Return      : None
   *****************************************************************************/
  LITE_OS_SEC_TEXT_INIT VOID osRegister(VOID)
  {
      g_uwTskMaxNum = LOSCFG_BASE_CORE_TSK_LIMIT + 1; /* Reserved 1 for IDLE */
      g_sys_mem_addr_end = (UINT32)g_ucMemStart + OS_SYS_MEM_SIZE;
      return;
  }
  
  /*****************************************************************************
   Function    : LOS_Start
   Description : Task start function
   Input       : None
   Output      : None
   Return      : LOS_OK
   *****************************************************************************/
  LITE_OS_SEC_TEXT_INIT UINT32 LOS_Start()
  {
      UINT32 uwRet;
  #if (LOSCFG_BASE_CORE_TICK_HW_TIME == NO)
      uwRet = osTickStart();
  
      if (uwRet != LOS_OK)
      {
          PRINT_ERR("osTickStart error\n");
          return uwRet;
      }
  #else
      os_timer_init();
  #endif
      LOS_StartToRun();
  
      return uwRet;
  }
  
  /*****************************************************************************
   Function    : osMain
   Description : System kernel initialization function, configure all system modules
   Input       : None
   Output      : None
   Return      : LOS_OK
   *****************************************************************************/
  LITE_OS_SEC_TEXT_INIT int osMain(void)
  {
      UINT32 uwRet;
  
      osRegister();
  
      uwRet = osMemSystemInit();
      if (uwRet != LOS_OK)
      {
          PRINT_ERR("osMemSystemInit error %d\n", uwRet);
          return uwRet;
      }
  
  #if (LOSCFG_PLATFORM_HWI == YES)
      {
          osHwiInit();
      }
  #endif
  
      uwRet =osTaskInit();
      if (uwRet != LOS_OK)
      {
          PRINT_ERR("osTaskInit error\n");
          return uwRet;
      }
  
  #if (LOSCFG_BASE_IPC_SEM == YES)
      {
          uwRet = osSemInit();
          if (uwRet != LOS_OK)
          {
              return uwRet;
          }
      }
  #endif
  
  #if (LOSCFG_BASE_IPC_MUX == YES)
      {
          uwRet = osMuxInit();
          if (uwRet != LOS_OK)
          {
              return uwRet;
          }
      }
  #endif
  
  #if (LOSCFG_BASE_IPC_QUEUE == YES)
      {
          uwRet = osQueueInit();
          if (uwRet != LOS_OK)
          {
              PRINT_ERR("osQueueInit error\n");
              return uwRet;
          }
      }
  #endif
  
  #if (LOSCFG_BASE_CORE_SWTMR == YES)
      {
          uwRet = osSwTmrInit();
          if (uwRet != LOS_OK)
          {
              PRINT_ERR("osSwTmrInit error\n");
              return uwRet;
          }
      }
  #endif
  
      #if(LOSCFG_BASE_CORE_TIMESLICE == YES)
      osTimesliceInit();
      #endif
  
      uwRet = osIdleTaskCreate();
      if (uwRet != LOS_OK) {
          return uwRet;
      }
  
      return LOS_OK;
  }
  
  
  /*****************************************************************************
   Function    : main
   Description : Main function entry
   Input       : None
   Output      : None
   Return      : None
   *****************************************************************************/
  LITE_OS_SEC_TEXT_INIT
  int main(void)
  {
      UINT32 uwRet;
      uwRet = osMain();
      if (uwRet != LOS_OK) {
          return LOS_NOK;
      }
  
      LOS_Start();
  
      for (;;);
      /* Replace the dots (...) with your own code.  */
  }
  
  void osBackTrace(){}
  
  #ifdef __cplusplus
  #if __cplusplus
  }
  #endif /* __cpluscplus */
  #endif /* __cpluscplus */
  