sm64pc/include/PR/os_pi.h

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2020-05-05 12:15:53 +00:00
#ifndef _ULTRA64_PI_H_
#define _ULTRA64_PI_H_
/* Ultra64 Parallel Interface */
/* Types */
typedef struct
{
u32 errStatus;
void *dramAddr;
void *C2Addr;
u32 sectorSize;
u32 C1ErrNum;
u32 C1ErrSector[4];
} __OSBlockInfo;
typedef struct
{
u32 cmdType;
u16 transferMode;
u16 blockNum;
s32 sectorNum;
uintptr_t devAddr;
u32 bmCtlShadow;
u32 seqCtlShadow;
__OSBlockInfo block[2];
} __OSTranxInfo;
typedef struct OSPiHandle_s
{
struct OSPiHandle_s *next;
u8 type;
u8 latency;
u8 pageSize;
u8 relDuration;
u8 pulse;
u8 domain;
u32 baseAddress;
u32 speed;
__OSTranxInfo transferInfo;
} OSPiHandle;
typedef struct
{
u8 type;
uintptr_t address;
} OSPiInfo;
typedef struct
{
u16 type;
u8 pri;
u8 status;
OSMesgQueue *retQueue;
} OSIoMesgHdr;
typedef struct
{
/*0x00*/ OSIoMesgHdr hdr;
/*0x08*/ void *dramAddr;
/*0x0C*/ uintptr_t devAddr;
/*0x10*/ size_t size;
//OSPiHandle *piHandle; //from the official definition
} OSIoMesg;
/* 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,
uintptr_t devAddr, void *vAddr, size_t nbytes, OSMesgQueue *mq);
void osCreatePiManager(OSPri pri, OSMesgQueue *cmdQ, OSMesg *cmdBuf,
s32 cmdMsgCnt);
OSMesgQueue *osPiGetCmdQueue(void);
s32 osPiWriteIo(uintptr_t devAddr, u32 data);
s32 osPiReadIo(uintptr_t devAddr, u32 *data);
#endif