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#include <global.h>
#include <ultra64/hardware.h>
OSPiHandle __CartRomHandle;
OSPiHandle* osCartRomInit()
{
register u32 a;
register s32 status;
register u32 prevInt;
register u32 lastLatency;
register u32 lastPageSize;
register u32 lastRelDuration;
register u32 lastPulse;
static u32 D_8000AF10 = 1;
__osPiGetAccess();
if (!D_8000AF10)
{
__osPiRelAccess();
return &__CartRomHandle;
}
D_8000AF10 = 0;
__CartRomHandle.type = DEVICE_TYPE_CART;
__CartRomHandle.baseAddress = 0xb0000000;
__CartRomHandle.domain = 0;
__CartRomHandle.speed = 0;
bzero(&__CartRomHandle.transferInfo, sizeof(__OSTranxInfo));
while (status = HW_REG(PI_STATUS_REG, u32), status & PI_STATUS_ERROR)
;
lastLatency = HW_REG(PI_BSD_DOM1_LAT_REG, u32);
lastPageSize = HW_REG(PI_BSD_DOM1_PGS_REG, u32);
lastRelDuration = HW_REG(PI_BSD_DOM1_RLS_REG, u32);
lastPulse = HW_REG(PI_BSD_DOM1_PWD_REG, u32);
HW_REG(PI_BSD_DOM1_LAT_REG, u32) = 0xff;
HW_REG(PI_BSD_DOM1_PGS_REG, u32) = 0;
HW_REG(PI_BSD_DOM1_RLS_REG, u32) = 3;
HW_REG(PI_BSD_DOM1_PWD_REG, u32) = 0xff;
a = HW_REG(__CartRomHandle.baseAddress, u32);
__CartRomHandle.latency = a & 0xFF;
__CartRomHandle.pageSize = (a >> 0x10) & 0xF;
__CartRomHandle.relDuration = (a >> 0x14) & 0xF;
__CartRomHandle.pulse = (a >> 8) & 0xFF;
HW_REG(PI_BSD_DOM1_LAT_REG, u32) = lastLatency;
HW_REG(PI_BSD_DOM1_PGS_REG, u32) = lastPageSize;
HW_REG(PI_BSD_DOM1_RLS_REG, u32) = lastRelDuration;
HW_REG(PI_BSD_DOM1_PWD_REG, u32) = lastPulse;
prevInt = __osDisableInt();
__CartRomHandle.next = __osPiTable;
__osPiTable = &__CartRomHandle;
__osRestoreInt(prevInt);
__osPiRelAccess();
return &__CartRomHandle;
}
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