sm64pc/lib/src/osLeoDiskInit.c
2020-02-03 00:51:26 -05:00

31 lines
1.1 KiB
C

#include "libultra_internal.h"
#include "hardware.h"
// this file must include some globally referenced data because it is not called anywhere
// data, comes shortly before _Ldtob I think, before crash_screen
extern OSPiHandle *D_80302DFC;
// bss
OSPiHandle LeoDiskHandle;
OSPiHandle *__osDiskHandle;
// some kind of piHandle init function, maybe osDriveRomInit or osCartRomInit
OSPiHandle *osLeoDiskInit() {
s32 sp1c;
LeoDiskHandle.type = 2;
LeoDiskHandle.baseAddress = (0xa0000000 | 0x05000000);
LeoDiskHandle.latency = 3;
LeoDiskHandle.pulse = 6;
LeoDiskHandle.pageSize = 6;
LeoDiskHandle.relDuration = 2;
HW_REG(PI_BSD_DOM2_LAT_REG, u32) = LeoDiskHandle.latency;
HW_REG(PI_BSD_DOM2_PWD_REG, u32) = LeoDiskHandle.pulse;
HW_REG(PI_BSD_DOM2_PGS_REG, u32) = LeoDiskHandle.pageSize;
HW_REG(PI_BSD_DOM2_RLS_REG, u32) = LeoDiskHandle.relDuration;
bzero(&LeoDiskHandle.transferInfo, sizeof(__OSTranxInfo));
sp1c = __osDisableInt();
LeoDiskHandle.next = D_80302DFC;
D_80302DFC = &LeoDiskHandle;
__osDiskHandle = &LeoDiskHandle;
__osRestoreInt(sp1c);
return &LeoDiskHandle;
}