-void piscsi_init();
-void piscsi_map_drive(char *filename, uint8_t index);
+// SPDX-License-Identifier: MIT
-void handle_piscsi_write(uint32_t addr, uint32_t val, uint8_t type);
-uint32_t handle_piscsi_read(uint32_t addr, uint8_t type);
+#include <stdint.h>
+
+#include "platforms/amiga/hunk-reloc.h"
+
+#define TDF_EXTCOM (1<<15)
+
+#define CMD_INVALID 0
+#define CMD_RESET 1
+#define CMD_READ 2
+#define CMD_WRITE 3
+#define CMD_UPDATE 4
+#define CMD_CLEAR 5
+#define CMD_STOP 6
+#define CMD_START 7
+#define CMD_FLUSH 8
+#define CMD_NONSTD 9
+
+#define TD_MOTOR (CMD_NONSTD+0) // 9
+#define TD_SEEK (CMD_NONSTD+1) // 10
+#define TD_FORMAT (CMD_NONSTD+2) // 11
+#define TD_REMOVE (CMD_NONSTD+3) // 12
+#define TD_CHANGENUM (CMD_NONSTD+4) // 13
+#define TD_CHANGESTATE (CMD_NONSTD+5) // 15
+#define TD_PROTSTATUS (CMD_NONSTD+6) // 16
+#define TD_RAWREAD (CMD_NONSTD+7) // 17
+#define TD_RAWWRITE (CMD_NONSTD+8) // 18
+#define TD_GETDRIVETYPE (CMD_NONSTD+9) // 19
+#define TD_GETNUMTRACKS (CMD_NONSTD+10) // 20
+#define TD_ADDCHANGEINT (CMD_NONSTD+11) // 21
+#define TD_REMCHANGEINT (CMD_NONSTD+12) // 22
+#define TD_GETGEOMETRY (CMD_NONSTD+13) // 23
+#define TD_EJECT (CMD_NONSTD+14) // 24
+#define TD_LASTCOMM (CMD_NONSTD+15) // 25
+
+#define ETD_WRITE (CMD_WRITE|TDF_EXTCOM)
+#define ETD_READ (CMD_READ|TDF_EXTCOM)
+#define ETD_MOTOR (TD_MOTOR|TDF_EXTCOM)
+#define ETD_SEEK (TD_SEEK|TDF_EXTCOM)
+#define ETD_FORMAT (TD_FORMAT|TDF_EXTCOM)
+#define ETD_UPDATE (CMD_UPDATE|TDF_EXTCOM)
+#define ETD_CLEAR (CMD_CLEAR|TDF_EXTCOM)
+#define ETD_RAWREAD (TD_RAWREAD|TDF_EXTCOM)
+#define ETD_RAWWRITE (TD_RAWWRITE|TDF_EXTCOM)
+
+#define HD_SCSICMD 28
-void piscsi_block_op(uint8_t type, uint8_t num, uint32_t dest, uint32_t len);
+#define NSCMD_DEVICEQUERY 0x4000
+#define NSCMD_TD_READ64 0xC000
+#define NSCMD_TD_WRITE64 0xC001
+#define NSCMD_TD_SEEK64 0xC002
+#define NSCMD_TD_FORMAT64 0xC003
+
+#define RDB_BLOCK_LIMIT 16
+
+// RDSK
+#define RDB_IDENTIFIER 0x5244534B
+// PART
+#define PART_IDENTIFIER 0x50415254
+// FSHD
+#define FS_IDENTIFIER 0x46534844
+
+#define PISCSI_DRIVER_OFFSET 0x1000
+#define NUM_FILESYSTEMS 32
struct piscsi_dev {
uint32_t c;
uint16_t h, s;
uint64_t fs;
int32_t fd;
+ uint32_t lba;
+ uint32_t num_partitions;
+ uint32_t fshd_offs;
+ uint32_t block_size;
+ struct PartitionBlock *pb[16];
+ struct RigidDiskBlock *rdb;
+};
+
+struct piscsi_fs {
+ struct FileSysHeaderBlock * fhb;
+ uint32_t FS_ID;
+ uint32_t handler;
+ struct hunk_reloc relocs[4096];
+ struct hunk_info h_info;
+ uint8_t *binary_data;
+};
+
+// .long 0 /* dos disk name */
+// .long 0 /* device file name */
+// .long 0 /* unit */
+// .long 0 /* flags */
+struct DosEnvec {
+ uint32_t de_TableSize; /* Size of Environment vector */
+ uint32_t de_SizeBlock; /* in longwords: standard value is 128 */
+ uint32_t de_SecOrg; /* not used; must be 0 */
+ uint32_t de_Surfaces; /* # of heads (surfaces). drive specific */
+ uint32_t de_SectorPerBlock; /* not used; must be 1 */
+ uint32_t de_BlocksPerTrack; /* blocks per track. drive specific */
+ uint32_t de_Reserved; /* DOS reserved blocks at start of partition. */
+ uint32_t de_PreAlloc; /* DOS reserved blocks at end of partition */
+ uint32_t de_Interleave; /* usually 0 */
+ uint32_t de_LowCyl; /* starting cylinder. typically 0 */
+ uint32_t de_HighCyl; /* max cylinder. drive specific */
+ uint32_t de_NumBuffers; /* Initial # DOS of buffers. */
+ uint32_t de_BufMemType; /* type of mem to allocate for buffers */
+ uint32_t de_MaxTransfer; /* Max number of bytes to transfer at a time */
+ uint32_t de_Mask; /* Address Mask to block out certain memory */
+ int32_t de_BootPri; /* Boot priority for autoboot */
+ uint32_t de_DosType; /* ASCII (HEX) string showing filesystem type;
+ * 0X444F5300 is old filesystem,
+ * 0X444F5301 is fast file system */
+ uint32_t de_Baud; /* Baud rate for serial handler */
+ uint32_t de_Control; /* Control word for handler/filesystem */
+ uint32_t de_BootBlocks; /* Number of blocks containing boot code */
+
+};
+
+struct pihd_dosnode_data {
+ uint32_t name_ptr;
+ uint32_t dev_name_ptr;
+ uint32_t unit;
+ uint32_t flags;
+ uint32_t node_len;
+ uint32_t block_len;
+ uint32_t pad1;
+ uint32_t surf;
+ uint32_t secs_per_block;
+ uint32_t blocks_per_track;
+ uint32_t reserved_blocks;
+ uint32_t pad2;
+ uint32_t interleave;
+ uint32_t lowcyl;
+ uint32_t highcyl;
+ uint32_t buffers;
+ uint32_t mem_type;
+ uint32_t maxtransfer;
+ uint32_t transfer_mask;
+ uint32_t priority;
+ uint32_t dostype;
};
+
+struct RigidDiskBlock {
+ uint32_t rdb_ID;
+ uint32_t rdb_SummedLongs;
+ int32_t rdb_ChkSum;
+ uint32_t rdb_HostID;
+ uint32_t rdb_BlockBytes;
+ uint32_t rdb_Flags;
+ /* block list heads */
+ uint32_t rdb_BadBlockList;
+ uint32_t rdb_PartitionList;
+ uint32_t rdb_FileSysHeaderList;
+ uint32_t rdb_DriveInit;
+ uint32_t rdb_Reserved1[6];
+ /* physical drive characteristics */
+ uint32_t rdb_Cylinders;
+ uint32_t rdb_Sectors;
+ uint32_t rdb_Heads;
+ uint32_t rdb_Interleave;
+ uint32_t rdb_Park;
+ uint32_t rdb_Reserved2[3];
+ uint32_t rdb_WritePreComp;
+ uint32_t rdb_ReducedWrite;
+ uint32_t rdb_StepRate;
+ uint32_t rdb_Reserved3[5];
+ /* logical drive characteristics */
+ uint32_t rdb_RDBBlocksLo;
+ uint32_t rdb_RDBBlocksHi;
+ uint32_t rdb_LoCylinder;
+ uint32_t rdb_HiCylinder;
+ uint32_t rdb_CylBlocks;
+ uint32_t rdb_AutoParkSeconds;
+ uint32_t rdb_HighRDSKBlock;
+ uint32_t rdb_Reserved4;
+ /* drive identification */
+ char rdb_DiskVendor[8];
+ char rdb_DiskProduct[16];
+ char rdb_DiskRevision[4];
+ char rdb_ControllerVendor[8];
+ char rdb_ControllerProduct[16];
+ char rdb_ControllerRevision[4];
+ char rdb_DriveInitName[40];
+};
+
+struct DeviceNode {
+ uint32_t dn_Next;
+ uint32_t dn_Type;
+ uint32_t dn_Task;
+ uint32_t dn_Lock;
+ uint8_t *dn_Handler;
+ uint32_t dn_StackSize;
+ int32_t dn_Priority;
+ uint32_t dn_Startup;
+ uint32_t dn_SegList;
+ uint32_t dn_GlobalVec;
+ uint8_t *dn_Name;
+};
+
+struct PartitionBlock {
+ uint32_t pb_ID;
+ uint32_t pb_SummedLongs;
+ int32_t pb_ChkSum;
+ uint32_t pb_HostID;
+ uint32_t pb_Next;
+ uint32_t pb_Flags;
+ uint32_t pb_Reserved1[2];
+ uint32_t pb_DevFlags;
+ uint8_t pb_DriveName[32];
+ uint32_t pb_Reserved2[15];
+ uint32_t pb_Environment[20];
+ uint32_t pb_EReserved[12];
+};
+
+struct SCSICmd_ModeSense6 {
+ uint8_t opcode;
+ uint8_t reserved_dbd;
+ uint8_t pc_pagecode;
+ uint8_t subpage_code;
+ uint8_t alloc_len;
+ uint8_t control;
+};
+
+struct SCSICmd_RW10 {
+ uint8_t opcode;
+ uint8_t rdprotect_flags;
+ uint32_t block;
+ uint8_t res_groupnum;
+ uint16_t len;
+ uint8_t control;
+};
+
+struct FileSysHeaderBlock {
+ uint32_t fhb_ID;
+ uint32_t fhb_SummedLongs;
+ int32_t fhb_ChkSum;
+ uint32_t fhb_HostID;
+ uint32_t fhb_Next;
+ uint32_t fhb_Flags;
+ uint32_t fhb_Reserved1[2];
+ uint32_t fhb_DosType;
+ uint32_t fhb_Version;
+ uint32_t fhb_PatchFlags;
+ uint32_t fhb_Type;
+ uint32_t fhb_Task;
+ uint32_t fhb_Lock;
+ uint32_t fhb_Handler;
+ uint32_t fhb_StackSize;
+ int32_t fhb_Priority;
+ int32_t fhb_Startup;
+ int32_t fhb_SegListBlocks;
+ int32_t fhb_GlobalVec;
+ uint32_t fhb_Reserved2[23];
+ uint8_t fhb_FileSysName[84];
+};
+
+void piscsi_init();
+void piscsi_shutdown();
+void piscsi_map_drive(char *filename, uint8_t index);
+void piscsi_unmap_drive(uint8_t index);
+struct piscsi_dev *piscsi_get_dev(uint8_t index);
+
+void handle_piscsi_write(uint32_t addr, uint32_t val, uint8_t type);
+uint32_t handle_piscsi_read(uint32_t addr, uint8_t type);
+
+void piscsi_find_filesystems(struct piscsi_dev *d);
+void piscsi_refresh_drives();
projects / pistorm / blobdiff