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oot/include/ultra64/os_pi.h

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2020-03-17 04:31:30 +00:00
#ifndef _ULTRA64_OS_PI_H_
#define _ULTRA64_OS_PI_H_
/* Ultra64 Parallel Interface */
/* Types */
typedef struct
{
/* 0x00 */ u32 errStatus;
/* 0x04 */ void *dramAddr;
/* 0x08 */ void *C2Addr;
/* 0x0C */ u32 sectorSize;
/* 0x10 */ u32 C1ErrNum;
/* 0x14 */ u32 C1ErrSector[4];
} __OSBlockInfo; /* length: 0x24 */
typedef struct
{
/* 0x00 */ u32 cmdType;
/* 0x04 */ u16 transferMode;
/* 0x06 */ u16 blockNum;
/* 0x08 */ s32 sectorNum;
/* 0x0C */ u32 devAddr;
/* 0x10 */ u32 bmCtlShadow;
/* 0x14 */ u32 seqCtlShadow;
/* 0x18 */ __OSBlockInfo block[2];
} __OSTranxInfo; /* length: 0x60 */
typedef struct OSPiHandle_s
{
/* 0x00 */ struct OSPiHandle_s *next;
/* 0x04 */ u8 type;
/* 0x05 */ u8 latency;
/* 0x06 */ u8 pageSize;
/* 0x07 */ u8 relDuration;
/* 0x08 */ u8 pulse;
/* 0x09 */ u8 domain;
/* 0x0A padding */
/* 0x0B padding */
/* 0x0C */ u32 baseAddress;
/* 0x10 */ u32 speed;
/* 0x14 */ __OSTranxInfo transferInfo;
} OSPiHandle; /* length: 0x74 */
typedef struct
{
u8 type;
u32 address;
} OSPiInfo;
typedef struct
{
/* 0x00 */ u16 type;
/* 0x02 */ u8 pri;
/* 0x03 */ u8 status;
/* 0x04 */ OSMesgQueue *retQueue;
} OSIoMesgHdr; /* length: 0x8 */
typedef struct
{
/*0x00*/ OSIoMesgHdr hdr;
/*0x08*/ void *dramAddr;
/*0x0C*/ u32 devAddr;
/*0x10*/ size_t size;
/*0x14*/ OSPiHandle* piHandle; //from the official definition
} OSIoMesg; /* length: 0x18 */
/* Definitions */
#define OS_READ 0 // device -> RDRAM
#define OS_WRITE 1 // device <- RDRAM
#define OS_MESG_PRI_NORMAL 0
#define OS_MESG_PRI_HIGH 1
/* Functions */
s32 osPiStartDma(OSIoMesg *mb, s32 priority, s32 direction,
u32 devAddr, void *vAddr, size_t nbytes, OSMesgQueue *mq);
void osCreatePiManager(OSPri pri, OSMesgQueue *cmdQ, OSMesg *cmdBuf,
s32 cmdMsgCnt);
OSMesgQueue *osPiGetCmdQueue(void);
s32 osPiWriteIo(u32 devAddr, u32 data);
s32 osPiReadIo(u32 devAddr, u32 *data);
#endif