1 #define TDF_EXTCOM (1<<15)
14 #define TD_MOTOR (CMD_NONSTD+0) // 9
15 #define TD_SEEK (CMD_NONSTD+1) // 10
16 #define TD_FORMAT (CMD_NONSTD+2) // 11
17 #define TD_REMOVE (CMD_NONSTD+3) // 12
18 #define TD_CHANGENUM (CMD_NONSTD+4) // 13
19 #define TD_CHANGESTATE (CMD_NONSTD+5) // 15
20 #define TD_PROTSTATUS (CMD_NONSTD+6) // 16
21 #define TD_RAWREAD (CMD_NONSTD+7) // 17
22 #define TD_RAWWRITE (CMD_NONSTD+8) // 18
23 #define TD_GETDRIVETYPE (CMD_NONSTD+9) // 19
24 #define TD_GETNUMTRACKS (CMD_NONSTD+10) // 20
25 #define TD_ADDCHANGEINT (CMD_NONSTD+11) // 21
26 #define TD_REMCHANGEINT (CMD_NONSTD+12) // 22
27 #define TD_GETGEOMETRY (CMD_NONSTD+13) // 23
28 #define TD_EJECT (CMD_NONSTD+14) // 24
29 #define TD_LASTCOMM (CMD_NONSTD+15) // 25
31 #define ETD_WRITE (CMD_WRITE|TDF_EXTCOM)
32 #define ETD_READ (CMD_READ|TDF_EXTCOM)
33 #define ETD_MOTOR (TD_MOTOR|TDF_EXTCOM)
34 #define ETD_SEEK (TD_SEEK|TDF_EXTCOM)
35 #define ETD_FORMAT (TD_FORMAT|TDF_EXTCOM)
36 #define ETD_UPDATE (CMD_UPDATE|TDF_EXTCOM)
37 #define ETD_CLEAR (CMD_CLEAR|TDF_EXTCOM)
38 #define ETD_RAWREAD (TD_RAWREAD|TDF_EXTCOM)
39 #define ETD_RAWWRITE (TD_RAWWRITE|TDF_EXTCOM)
43 #define NSCMD_DEVICEQUERY 0x4000
44 #define NSCMD_TD_READ64 0xC000
45 #define NSCMD_TD_WRITE64 0xC001
46 #define NSCMD_TD_SEEK64 0xC002
47 #define NSCMD_TD_FORMAT64 0xC003
49 #define RDB_BLOCK_LIMIT 16
52 #define RDB_IDENTIFIER 0x5244534B
54 #define PART_IDENTIFIER 0x50415254
56 #define FS_IDENTIFIER 0x46534844
58 #define PISCSI_DRIVER_OFFSET 0x1000
59 #define NUM_FILESYSTEMS 32
67 uint32_t num_partitions;
69 // Will parse max eight partitions per disk
70 struct PartitionBlock *pb[16];
71 struct RigidDiskBlock *rdb;
75 struct FileSysHeaderBlock * fhb;
78 struct hunk_reloc relocs[512];
79 struct hunk_info h_info;
83 // .long 0 /* dos disk name */
84 // .long 0 /* device file name */
86 // .long 0 /* flags */
88 uint32_t de_TableSize; /* Size of Environment vector */
89 uint32_t de_SizeBlock; /* in longwords: standard value is 128 */
90 uint32_t de_SecOrg; /* not used; must be 0 */
91 uint32_t de_Surfaces; /* # of heads (surfaces). drive specific */
92 uint32_t de_SectorPerBlock; /* not used; must be 1 */
93 uint32_t de_BlocksPerTrack; /* blocks per track. drive specific */
94 uint32_t de_Reserved; /* DOS reserved blocks at start of partition. */
95 uint32_t de_PreAlloc; /* DOS reserved blocks at end of partition */
96 uint32_t de_Interleave; /* usually 0 */
97 uint32_t de_LowCyl; /* starting cylinder. typically 0 */
98 uint32_t de_HighCyl; /* max cylinder. drive specific */
99 uint32_t de_NumBuffers; /* Initial # DOS of buffers. */
100 uint32_t de_BufMemType; /* type of mem to allocate for buffers */
101 uint32_t de_MaxTransfer; /* Max number of bytes to transfer at a time */
102 uint32_t de_Mask; /* Address Mask to block out certain memory */
103 int32_t de_BootPri; /* Boot priority for autoboot */
104 uint32_t de_DosType; /* ASCII (HEX) string showing filesystem type;
105 * 0X444F5300 is old filesystem,
106 * 0X444F5301 is fast file system */
107 uint32_t de_Baud; /* Baud rate for serial handler */
108 uint32_t de_Control; /* Control word for handler/filesystem */
109 uint32_t de_BootBlocks; /* Number of blocks containing boot code */
113 struct pihd_dosnode_data {
115 uint32_t dev_name_ptr;
122 uint32_t secs_per_block;
123 uint32_t blocks_per_track;
124 uint32_t reserved_blocks;
131 uint32_t maxtransfer;
132 uint32_t transfer_mask;
137 struct RigidDiskBlock {
139 uint32_t rdb_SummedLongs;
142 uint32_t rdb_BlockBytes;
144 /* block list heads */
145 uint32_t rdb_BadBlockList;
146 uint32_t rdb_PartitionList;
147 uint32_t rdb_FileSysHeaderList;
148 uint32_t rdb_DriveInit;
149 uint32_t rdb_Reserved1[6];
150 /* physical drive characteristics */
151 uint32_t rdb_Cylinders;
152 uint32_t rdb_Sectors;
154 uint32_t rdb_Interleave;
156 uint32_t rdb_Reserved2[3];
157 uint32_t rdb_WritePreComp;
158 uint32_t rdb_ReducedWrite;
159 uint32_t rdb_StepRate;
160 uint32_t rdb_Reserved3[5];
161 /* logical drive characteristics */
162 uint32_t rdb_RDBBlocksLo;
163 uint32_t rdb_RDBBlocksHi;
164 uint32_t rdb_LoCylinder;
165 uint32_t rdb_HiCylinder;
166 uint32_t rdb_CylBlocks;
167 uint32_t rdb_AutoParkSeconds;
168 uint32_t rdb_HighRDSKBlock;
169 uint32_t rdb_Reserved4;
170 /* drive identification */
171 char rdb_DiskVendor[8];
172 char rdb_DiskProduct[16];
173 char rdb_DiskRevision[4];
174 char rdb_ControllerVendor[8];
175 char rdb_ControllerProduct[16];
176 char rdb_ControllerRevision[4];
177 char rdb_DriveInitName[40];
186 uint32_t dn_StackSize;
190 uint32_t dn_GlobalVec;
194 struct PartitionBlock {
196 uint32_t pb_SummedLongs;
201 uint32_t pb_Reserved1[2];
202 uint32_t pb_DevFlags;
203 uint8_t pb_DriveName[32];
204 uint32_t pb_Reserved2[15];
205 uint32_t pb_Environment[20];
206 uint32_t pb_EReserved[12];
209 struct SCSICmd_ModeSense6 {
211 uint8_t reserved_dbd;
213 uint8_t subpage_code;
218 struct SCSICmd_RW10 {
220 uint8_t rdprotect_flags;
222 uint8_t res_groupnum;
227 struct FileSysHeaderBlock {
229 uint32_t fhb_SummedLongs;
234 uint32_t fhb_Reserved1[2];
235 uint32_t fhb_DosType;
236 uint32_t fhb_Version;
237 uint32_t fhb_PatchFlags;
241 uint32_t fhb_Handler;
242 uint32_t fhb_StackSize;
243 int32_t fhb_Priority;
245 int32_t fhb_SegListBlocks;
246 int32_t fhb_GlobalVec;
247 uint32_t fhb_Reserved2[23];
248 uint8_t fhb_FileSysName[84];
252 void piscsi_map_drive(char *filename, uint8_t index);
254 void handle_piscsi_write(uint32_t addr, uint32_t val, uint8_t type);
255 uint32_t handle_piscsi_read(uint32_t addr, uint8_t type);
257 void piscsi_find_filesystems(struct piscsi_dev *d);
258 void piscsi_refresh_drives();