include/PR/os_pi.h

   1 #ifndef _ULTRA64_PI_H_
   2 #define _ULTRA64_PI_H_
   3
   4 /* Ultra64 Parallel Interface */
   5
   6 /* Types */
   7
   8 typedef struct {
   9 #if !defined(VERSION_EU) && !defined(VERSION_SH)
  10     u32 errStatus;
  11 #endif
  12     void *dramAddr;
  13     void *C2Addr;
  14     u32 sectorSize;
  15     u32 C1ErrNum;
  16     u32 C1ErrSector[4];
  17 } __OSBlockInfo;
  18
  19 typedef struct {
  20     u32 cmdType;       // 0
  21     u16 transferMode;  // 4
  22     u16 blockNum;      // 6
  23     s32 sectorNum;     // 8
  24     uintptr_t devAddr; // c
  25 #if defined(VERSION_EU) || defined(VERSION_SH)
  26     u32 unk10; //error status added moved to blockinfo
  27 #endif
  28     u32 bmCtlShadow;        // 10
  29     u32 seqCtlShadow;       // 14
  30     __OSBlockInfo block[2]; // 18
  31 } __OSTranxInfo;
  32
  33 typedef struct OSPiHandle_s {
  34     struct OSPiHandle_s *next;
  35     u8 type;
  36     u8 latency;
  37     u8 pageSize;
  38     u8 relDuration;
  39     u8 pulse;
  40     u8 domain;
  41     u32 baseAddress;
  42     u32 speed;
  43     __OSTranxInfo transferInfo;
  44 } OSPiHandle;
  45
  46 typedef struct {
  47     u8 type;
  48     uintptr_t address;
  49 } OSPiInfo;
  50
  51 typedef struct {
  52     u16 type;
  53     u8 pri;
  54     u8 status;
  55     OSMesgQueue *retQueue;
  56 } OSIoMesgHdr;
  57
  58 typedef struct {
  59     /*0x00*/ OSIoMesgHdr hdr;
  60     /*0x08*/ void *dramAddr;
  61     /*0x0C*/ uintptr_t devAddr;
  62     /*0x10*/ size_t size;
  63 #if defined(VERSION_EU) || defined(VERSION_SH)
  64     OSPiHandle *piHandle; // from the official definition
  65 #endif
  66 } OSIoMesg;
  67
  68 /* Definitions */
  69
  70 #define OS_READ 0  // device -> RDRAM
  71 #define OS_WRITE 1 // device <- RDRAM
  72
  73 #define OS_MESG_PRI_NORMAL 0
  74 #define OS_MESG_PRI_HIGH 1
  75
  76 /* Functions */
  77
  78 s32 osPiStartDma(OSIoMesg *mb, s32 priority, s32 direction, uintptr_t devAddr, void *vAddr,
  79                  size_t nbytes, OSMesgQueue *mq);
  80 void osCreatePiManager(OSPri pri, OSMesgQueue *cmdQ, OSMesg *cmdBuf, s32 cmdMsgCnt);
  81 OSMesgQueue *osPiGetCmdQueue(void);
  82 s32 osPiWriteIo(uintptr_t devAddr, u32 data);
  83 s32 osPiReadIo(uintptr_t devAddr, u32 *data);
  84 #endif