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//
// Created by red031000 on 2020-05-21.
//
#include "OS_spinLock.h"
#include "function_target.h"
#include "consts.h"
#include "MI_exMemory.h"
extern void OS_TryLockByWord(u16 param1, OSLockWord* lockp, void* func);
extern void OS_UnlockByWord(u16 param1, OSLockWord* lockp, void* func);
extern void MIi_CpuClear32(u32 param1, void * addr, u32 length); //not too sure about names
ARM_FUNC void OS_InitLock()
{
static BOOL isInitialized = FALSE;
if (isInitialized)
{
return;
}
isInitialized = TRUE;
OSLockWord* lockp = (OSLockWord *)0x027FFFF0;
lockp->lockFlag = 0;
(void)OS_TryLockByWord(0x7e, lockp, NULL);
while (lockp->extension)
{
OSi_WaitByLoop();
}
((u32 *)HW_LOCK_ID_FLAG_MAIN)[0] = 0xffffffff;
((u32 *)HW_LOCK_ID_FLAG_MAIN)[1] = 0xffff0000;
MIi_CpuClear32(0x0, (void *)HW_SHARED_LOCK_BUF, 0x28);
MIi_SetCardProcessor(MI_PROCESSOR_ARM7);
MIi_SetCartridgeProcessor(MI_PROCESSOR_ARM7);
OS_UnlockByWord(0x7e, lockp, NULL);
OS_TryLockByWord(0x7f, lockp, NULL);
}
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