/* Begin Function:_Sys_Pipe_Init *********************************************
Description : The initialization function for the system pipe module.
Input : None.
Output : None.
Return : None.
******************************************************************************/
void _Sys_Pipe_Init(void)
{
#if(ENABLE_PIPE==TRUE)
cnt_t Pipe_Cnt;
/* Initialize the two lists */
Sys_Create_List(&Pipe_Empty_List_Head);
Sys_Create_List(&Pipe_List_Head);
/* Clear the whole control block array */
Sys_Memset((ptr_int_t)Pipe_CB,0,MAX_PIPES*sizeof(struct Pipe));
/* Put all the pipe control blocks in the empty ones */
for(Pipe_Cnt=0;Pipe_Cnt<MAX_PIPES;Pipe_Cnt++)
{
/* -1 means that the two side of the pipe is not opened */
Pipe_CB[Pipe_Cnt].Opener_PID[0]=PIPECLOSE;
Pipe_CB[Pipe_Cnt].Opener_PID[1]=PIPECLOSE;
Pipe_CB[Pipe_Cnt].Pipe_ID=Pipe_Cnt;
/* Put all of them in the empty list */
Sys_List_Insert_Node(&(Pipe_CB[Pipe_Cnt].Head),&Pipe_Empty_List_Head,Pipe_Empty_List_Head.Next);
}
/* Clear the statistical variable */
Pipe_In_Sys=0;
#endif
}
/* Begin Function:_Sys_Timer_Init *********************************************
Description : Initialize the system timer module.
Input : None.
Output : None.
Return : None.
******************************************************************************/
void _Sys_Timer_Init(void)
{
#if(ENABLE_TIMER==TRUE)
cnt_t Tim_Cnt;
/* Initialize the lists */
Sys_Create_List(&Tim_List_Head);
Sys_Create_List(&Tim_Empty_List_Head);
Sys_Create_List(&Tim_Running_List_Head);
Sys_Create_List(&Tim_Stop_List_Head);
Sys_Create_List(&Tim_Reload_List_Head);
Sys_Create_List(&Proc_Delay_List_Head);
/* Clear the control block */
Sys_Memset((ptr_int_t)Tim_CB,0,MAX_TIMS*sizeof(struct Timer));
Sys_Memset((ptr_int_t)PCB_Proc_Delay,0,MAX_PROC_NUM*sizeof(struct PCB_Timer));
/* Put the blocks into the empty list */
for(Tim_Cnt=0;Tim_Cnt<MAX_TIMS;Tim_Cnt++)
{
Tim_CB[Tim_Cnt].Timer_ID=Tim_Cnt;
Sys_List_Insert_Node(&(Tim_CB[Tim_Cnt].Head),&Tim_Empty_List_Head,Tim_Empty_List_Head.Next);
}
/* Put the blocks into the empty list */
for(Tim_Cnt=0;Tim_Cnt<MAX_PROC_NUM;Tim_Cnt++)
{
PCB_Proc_Delay[Tim_Cnt].PID=Tim_Cnt;
}
/* Clear the statistical variable */
Timer_In_Sys=0;
#endif
}
/*Begin Function:_Sys_Scheduler_Init*******************************************
Description : The system scheduler initialization function.
Input : None.
Output : None.
Return : None.
******************************************************************************/
void _Sys_Scheduler_Init(void)
{
cnt_t Count;
/* Systemis still booting */
System_Status.Kernel.Boot_Done=FALSE;
/* Clear the statistic variable for the kernel */
Sys_Memset((ptr_int_t)(&System_Status),0,sizeof(struct Sys_Status_Struct));
/* Initialize the system clock.*/
_Sys_Systick_Init(MIN_TIMESLICE_TICK);
/* Initialize the priority list. We do this to facilitate bidirectional search.
* We can get the pointer to this priority level when we have the priority level
* number, and vice versa.
*/
for(Count=0;Count<MAX_PRIO_NUM;Count++)
{
Prio_List[Count].Priority=Count;
Prio_List[Count].Proc_Num=0;
Sys_Create_List((struct List_Head*)&(Prio_List[Count].Running_List));
}
Sys_Create_List((struct List_Head*)(&Prio_List_Head));
/* Initialize the list for each possible task slot */
for(Count=0;Count<MAX_PROC_NUM;Count++)
{
PCB[Count].Status.Sleep_Count=1;
PCB[Count].Status.Status_Lock_Count=0;
Sys_Create_List((struct List_Head*)(&(PCB[Count].Head)));
}
/* Clear the pending system scheduling count */
Pend_Sched_Cnt=0;
}
/*Begin Function:_Sys_Memory_Init**********************************************
Description : Initiate Memory Pages In A Certain Area.
Input : u32 Start -The Start Address Of The Area.
u32 End -The End Address Of The Area.
Output : Void.
******************************************************************************/
void _Sys_Memory_Init(u32 Start,u32 End)
{
Sys_Memset((u8*)Start,0,End-Start+1); //The Sys_Memset Is Based On Byte.If It Is Based On Word,It Will Cause A HardFault Implicitly When Used To Clear The Last Byte Of The Memory.
}
/*********Begin Function:_Sys_RAMFS_Low_Level_Format********
Description : Low-Level Format The Filesystem At The Assigned Address.For System Use.
Input : u32 Absolute_Start_Address -The Absolute Start Address Of The Filesystem
To Be Created.
Output : Void.
***********************************************************/
void _Sys_RAMFS_Low_Level_Format_FS(u32* Absolute_Start_Address)
{
Sys_Memset(Absolute_Start_Address,0,sizeof(struct _RAMFS_MFT)*MAX_FILE_IN_FS+sizeof(struct RAMFS_FILE_BLOCK)*MAX_BLOCK_NUMBER);
}