1 // SPDX-License-Identifier: MIT
11 #include "config_file/config_file.h"
12 #include "gpio/ps_protocol.h"
13 #include "piscsi-enums.h"
15 #include "platforms/amiga/hunk-reloc.h"
17 #define BE(val) be32toh(val)
18 #define BE16(val) be16toh(val)
20 // Uncomment the line below to enable debug output
21 //#define PISCSI_DEBUG
25 //#define DEBUG_TRIVIAL printf
26 #define DEBUG_TRIVIAL(...)
28 //extern void stop_cpu_emulation(uint8_t disasm_cur);
29 #define stop_cpu_emulation(...)
31 static const char *op_type_names[4] = {
39 #define DEBUG_TRIVIAL(...)
40 #define stop_cpu_emulation(...)
47 extern struct emulator_config *cfg;
49 struct piscsi_dev devs[8];
50 struct piscsi_fs filesystems[NUM_FILESYSTEMS];
52 uint8_t piscsi_num_fs = 0;
54 uint8_t piscsi_cur_drive = 0;
55 uint32_t piscsi_u32[4];
56 uint32_t piscsi_dbg[8];
57 uint32_t piscsi_rom_size = 0;
58 uint8_t *piscsi_rom_ptr;
60 uint32_t rom_partitions[128];
61 uint32_t rom_partition_prio[128];
62 uint32_t rom_partition_dostype[128];
63 uint32_t rom_cur_partition = 0, rom_cur_fs = 0;
65 extern unsigned char ac_piscsi_rom[];
67 //static const char *partition_marker = "PART";
69 struct hunk_info piscsi_hinfo;
70 struct hunk_reloc piscsi_hreloc[256];
73 for (int i = 0; i < 8; i++) {
76 devs[i].c = devs[i].h = devs[i].s = 0;
79 if (piscsi_rom_ptr == NULL) {
80 FILE *in = fopen("./platforms/amiga/piscsi/piscsi.rom", "rb");
82 printf("[PISCSI] Could not open PISCSI Boot ROM file for reading!\n");
83 // Zero out the boot ROM offset from the autoconfig ROM.
84 ac_piscsi_rom[20] = 0;
85 ac_piscsi_rom[21] = 0;
86 ac_piscsi_rom[22] = 0;
87 ac_piscsi_rom[23] = 0;
90 fseek(in, 0, SEEK_END);
91 piscsi_rom_size = ftell(in);
92 fseek(in, 0, SEEK_SET);
93 piscsi_rom_ptr = malloc(piscsi_rom_size);
94 fread(piscsi_rom_ptr, piscsi_rom_size, 1, in);
96 fseek(in, PISCSI_DRIVER_OFFSET, SEEK_SET);
97 process_hunks(in, &piscsi_hinfo, piscsi_hreloc, PISCSI_DRIVER_OFFSET);
101 printf("[PISCSI] Loaded Boot ROM.\n");
103 printf("[PISCSI] Boot ROM already loaded.\n");
108 void piscsi_shutdown() {
109 printf("[PISCSI] Shutting down PiSCSI.\n");
110 for (int i = 0; i < 8; i++) {
111 if (devs[i].fd != -1) {
114 devs[i].block_size = 0;
118 for (int i = 0; i < NUM_FILESYSTEMS; i++) {
119 if (filesystems[i].binary_data) {
120 free(filesystems[i].binary_data);
121 filesystems[i].binary_data = NULL;
123 if (filesystems[i].fhb) {
124 free(filesystems[i].fhb);
125 filesystems[i].fhb = NULL;
127 filesystems[i].h_info.current_hunk = 0;
128 filesystems[i].h_info.reloc_hunks = 0;
129 filesystems[i].FS_ID = 0;
130 filesystems[i].handler = 0;
134 void piscsi_find_partitions(struct piscsi_dev *d) {
136 int cur_partition = 0;
139 for (int i = 0; i < 16; i++) {
146 if (!d->rdb || d->rdb->rdb_PartitionList == 0) {
147 DEBUG("[PISCSI] No partitions on disk.\n");
151 char *block = malloc(d->block_size);
153 lseek(fd, BE(d->rdb->rdb_PartitionList) * d->block_size, SEEK_SET);
155 read(fd, block, d->block_size);
157 uint32_t first = be32toh(*((uint32_t *)&block[0]));
158 if (first != PART_IDENTIFIER) {
159 DEBUG("Entry at block %d is not a valid partition. Aborting.\n", BE(d->rdb->rdb_PartitionList));
163 struct PartitionBlock *pb = (struct PartitionBlock *)block;
164 tmp = pb->pb_DriveName[0];
165 pb->pb_DriveName[tmp + 1] = 0x00;
166 DEBUG("[PISCSI] Partition %d: %s\n", cur_partition, pb->pb_DriveName + 1);
167 DEBUG("Checksum: %.8X HostID: %d\n", BE(pb->pb_ChkSum), BE(pb->pb_HostID));
168 DEBUG("Flags: %d (%.8X) Devflags: %d (%.8X)\n", BE(pb->pb_Flags), BE(pb->pb_Flags), BE(pb->pb_DevFlags), BE(pb->pb_DevFlags));
169 d->pb[cur_partition] = pb;
171 if (d->pb[cur_partition]->pb_Next != 0xFFFFFFFF) {
172 uint64_t next = be32toh(pb->pb_Next);
173 block = malloc(d->block_size);
174 lseek64(fd, next * d->block_size, SEEK_SET);
176 DEBUG("[PISCSI] Next partition at block %d.\n", be32toh(pb->pb_Next));
179 DEBUG("[PISCSI] No more partitions on disk.\n");
180 d->num_partitions = cur_partition + 1;
181 d->fshd_offs = lseek64(fd, 0, SEEK_CUR);
186 int piscsi_parse_rdb(struct piscsi_dev *d) {
189 uint8_t *block = malloc(PISCSI_MAX_BLOCK_SIZE);
191 lseek(fd, 0, SEEK_SET);
192 for (i = 0; i < RDB_BLOCK_LIMIT; i++) {
193 read(fd, block, PISCSI_MAX_BLOCK_SIZE);
194 uint32_t first = be32toh(*((uint32_t *)&block[0]));
195 if (first == RDB_IDENTIFIER)
200 struct RigidDiskBlock *rdb = (struct RigidDiskBlock *)block;
201 DEBUG("[PISCSI] RDB found at block %d.\n", i);
202 d->c = be32toh(rdb->rdb_Cylinders);
203 d->h = be32toh(rdb->rdb_Heads);
204 d->s = be32toh(rdb->rdb_Sectors);
205 d->num_partitions = 0;
206 DEBUG("[PISCSI] RDB - first partition at block %d.\n", be32toh(rdb->rdb_PartitionList));
207 d->block_size = be32toh(rdb->rdb_BlockBytes);
208 DEBUG("[PISCSI] Block size: %d. (%d)\n", be32toh(rdb->rdb_BlockBytes), d->block_size);
212 sprintf(d->rdb->rdb_DriveInitName, "pi-scsi.device");
222 void piscsi_refresh_drives() {
225 for (int i = 0; i < NUM_FILESYSTEMS; i++) {
226 if (filesystems[i].binary_data) {
227 free(filesystems[i].binary_data);
228 filesystems[i].binary_data = NULL;
230 if (filesystems[i].fhb) {
231 free(filesystems[i].fhb);
232 filesystems[i].fhb = NULL;
234 filesystems[i].h_info.current_hunk = 0;
235 filesystems[i].h_info.reloc_hunks = 0;
236 filesystems[i].FS_ID = 0;
237 filesystems[i].handler = 0;
242 for (int i = 0; i < NUM_UNITS; i++) {
243 if (devs[i].fd != -1) {
244 piscsi_parse_rdb(&devs[i]);
245 piscsi_find_partitions(&devs[i]);
246 piscsi_find_filesystems(&devs[i]);
251 void piscsi_find_filesystems(struct piscsi_dev *d) {
252 if (!d->num_partitions)
255 uint8_t fs_found = 0;
257 uint8_t *fhb_block = malloc(d->block_size);
259 lseek64(d->fd, d->fshd_offs, SEEK_SET);
261 struct FileSysHeaderBlock *fhb = (struct FileSysHeaderBlock *)fhb_block;
262 read(d->fd, fhb_block, d->block_size);
264 while (BE(fhb->fhb_ID) == FS_IDENTIFIER) {
265 char *dosID = (char *)&fhb->fhb_DosType;
267 uint16_t *fsVer = (uint16_t *)&fhb->fhb_Version;
269 DEBUG("[FSHD] FSHD Block found.\n");
270 DEBUG("[FSHD] HostID: %d Next: %d Size: %d\n", BE(fhb->fhb_HostID), BE(fhb->fhb_Next), BE(fhb->fhb_SummedLongs));
271 DEBUG("[FSHD] Flags: %.8X DOSType: %c%c%c/%d\n", BE(fhb->fhb_Flags), dosID[0], dosID[1], dosID[2], dosID[3]);
272 DEBUG("[FSHD] Version: %d.%d\n", BE16(fsVer[0]), BE16(fsVer[1]));
273 DEBUG("[FSHD] Patchflags: %d Type: %d\n", BE(fhb->fhb_PatchFlags), BE(fhb->fhb_Type));
274 DEBUG("[FSHD] Task: %d Lock: %d\n", BE(fhb->fhb_Task), BE(fhb->fhb_Lock));
275 DEBUG("[FSHD] Handler: %d StackSize: %d\n", BE(fhb->fhb_Handler), BE(fhb->fhb_StackSize));
276 DEBUG("[FSHD] Prio: %d Startup: %d (%.8X)\n", BE(fhb->fhb_Priority), BE(fhb->fhb_Startup), BE(fhb->fhb_Startup));
277 DEBUG("[FSHD] SegListBlocks: %d GlobalVec: %d\n", BE(fhb->fhb_Priority), BE(fhb->fhb_Startup));
278 DEBUG("[FSHD] FileSysName: %s\n", fhb->fhb_FileSysName + 1);
281 for (int i = 0; i < NUM_FILESYSTEMS; i++) {
282 if (filesystems[i].FS_ID == fhb->fhb_DosType) {
283 DEBUG("[FSHD] File system %c%c%c/%d already loaded. Skipping.\n", dosID[0], dosID[1], dosID[2], dosID[3]);
284 if (BE(fhb->fhb_Next) == 0xFFFFFFFF)
287 goto skip_fs_load_lseg;
291 if (load_lseg(d->fd, &filesystems[piscsi_num_fs].binary_data, &filesystems[piscsi_num_fs].h_info, filesystems[piscsi_num_fs].relocs, d->block_size) != -1) {
292 filesystems[piscsi_num_fs].FS_ID = fhb->fhb_DosType;
293 filesystems[piscsi_num_fs].fhb = fhb;
294 printf("[FSHD] Loaded and set up file system %d: %c%c%c/%d\n", piscsi_num_fs + 1, dosID[0], dosID[1], dosID[2], dosID[3]);
296 char fs_save_filename[256];
297 memset(fs_save_filename, 0x00, 256);
298 sprintf(fs_save_filename, "./data/fs/%c%c%c.%d", dosID[0], dosID[1], dosID[2], dosID[3]);
299 FILE *save_fs = fopen(fs_save_filename, "rb");
300 if (save_fs == NULL) {
301 save_fs = fopen(fs_save_filename, "wb+");
302 if (save_fs != NULL) {
303 fwrite(filesystems[piscsi_num_fs].binary_data, filesystems[piscsi_num_fs].h_info.byte_size, 1, save_fs);
305 printf("[FSHD] File system %c%c%c/%d saved to fs storage.\n", dosID[0], dosID[1], dosID[2], dosID[3]);
307 printf("[FSHD] Failed to save file system to fs storage. (Permission issues?)\n");
318 lseek64(d->fd, BE(fhb->fhb_Next) * d->block_size, SEEK_SET);
319 fhb_block = malloc(d->block_size);
320 fhb = (struct FileSysHeaderBlock *)fhb_block;
321 read(d->fd, fhb_block, d->block_size);
325 DEBUG("[!!!FSHD] No file systems found on hard drive!\n");
333 struct piscsi_dev *piscsi_get_dev(uint8_t index) {
337 void piscsi_map_drive(char *filename, uint8_t index) {
339 printf("[PISCSI] Drive index %d out of range.\nUnable to map file %s to drive.\n", index, filename);
343 int32_t tmp_fd = open(filename, O_RDWR);
345 printf("[PISCSI] Failed to open file %s, could not map drive %d.\n", filename, index);
349 struct piscsi_dev *d = &devs[index];
351 uint64_t file_size = lseek(tmp_fd, 0, SEEK_END);
354 lseek(tmp_fd, 0, SEEK_SET);
355 printf("[PISCSI] Map %d: [%s] - %llu bytes.\n", index, filename, file_size);
357 if (piscsi_parse_rdb(d) == -1) {
358 DEBUG("[PISCSI] No RDB found on disk, making up some CHS values.\n");
361 d->c = (file_size / 512) / (d->s * d->h);
364 printf("[PISCSI] CHS: %d %d %d\n", d->c, d->h, d->s);
366 printf ("Finding partitions.\n");
367 piscsi_find_partitions(d);
368 printf ("Finding file systems.\n");
369 piscsi_find_filesystems(d);
373 void piscsi_unmap_drive(uint8_t index) {
374 if (devs[index].fd != -1) {
375 DEBUG("[PISCSI] Unmapped drive %d.\n", index);
376 close (devs[index].fd);
381 char *io_cmd_name(int index) {
383 case CMD_INVALID: return "INVALID";
384 case CMD_RESET: return "RESET";
385 case CMD_READ: return "READ";
386 case CMD_WRITE: return "WRITE";
387 case CMD_UPDATE: return "UPDATE";
388 case CMD_CLEAR: return "CLEAR";
389 case CMD_STOP: return "STOP";
390 case CMD_START: return "START";
391 case CMD_FLUSH: return "FLUSH";
392 case TD_MOTOR: return "TD_MOTOR";
393 case TD_SEEK: return "SEEK";
394 case TD_FORMAT: return "FORMAT";
395 case TD_REMOVE: return "REMOVE";
396 case TD_CHANGENUM: return "CHANGENUM";
397 case TD_CHANGESTATE: return "CHANGESTATE";
398 case TD_PROTSTATUS: return "PROTSTATUS";
399 case TD_RAWREAD: return "RAWREAD";
400 case TD_RAWWRITE: return "RAWWRITE";
401 case TD_GETDRIVETYPE: return "GETDRIVETYPE";
402 case TD_GETNUMTRACKS: return "GETNUMTRACKS";
403 case TD_ADDCHANGEINT: return "ADDCHANGEINT";
404 case TD_REMCHANGEINT: return "REMCHANGEINT";
405 case TD_GETGEOMETRY: return "GETGEOMETRY";
406 case TD_EJECT: return "EJECT";
407 case TD_LASTCOMM: return "LASTCOMM/READ64";
408 case TD_WRITE64: return "WRITE64";
409 case HD_SCSICMD: return "HD_SCSICMD";
410 case NSCMD_DEVICEQUERY: return "NSCMD_DEVICEQUERY";
411 case NSCMD_TD_READ64: return "NSCMD_TD_READ64";
412 case NSCMD_TD_WRITE64: return "NSCMD_TD_WRITE64";
413 case NSCMD_TD_FORMAT64: return "NSCMD_TD_FORMAT64";
416 return "[!!!PISCSI] Unhandled IO command";
420 #define GETSCSINAME(a) case a: return ""#a"";
421 #define SCSIUNHANDLED(a) return "[!!!PISCSI] Unhandled SCSI command "#a"";
423 char *scsi_cmd_name(int index) {
425 GETSCSINAME(SCSICMD_TEST_UNIT_READY);
426 GETSCSINAME(SCSICMD_INQUIRY);
427 GETSCSINAME(SCSICMD_READ_6);
428 GETSCSINAME(SCSICMD_WRITE_6);
429 GETSCSINAME(SCSICMD_READ_10);
430 GETSCSINAME(SCSICMD_WRITE_10);
431 GETSCSINAME(SCSICMD_READ_CAPACITY_10);
432 GETSCSINAME(SCSICMD_MODE_SENSE_6);
433 GETSCSINAME(SCSICMD_READ_DEFECT_DATA_10);
435 return "[!!!PISCSI] Unhandled SCSI command";
439 void print_piscsi_debug_message(int index) {
444 DEBUG("[PISCSI] Initializing devices.\n");
447 if (piscsi_dbg[0] != 255) {
448 DEBUG("[PISCSI] Opening device %d (%d). Flags: %d (%.2X)\n", piscsi_dbg[0], piscsi_dbg[2], piscsi_dbg[1], piscsi_dbg[1]);
452 DEBUG("[PISCSI] Cleaning up.\n");
455 DEBUG("[PISCSI] C/H/S: %d / %d / %d\n", piscsi_dbg[0], piscsi_dbg[1], piscsi_dbg[2]);
458 DEBUG("[PISCSI] BeginIO: io_Command: %d (%s) - io_Flags = %d - quick: %d\n", piscsi_dbg[0], io_cmd_name(piscsi_dbg[0]), piscsi_dbg[1], piscsi_dbg[2]);
461 DEBUG("[PISCSI] AbortIO!\n");
464 DEBUG("[PISCSI] SCSI Command %d (%s)\n", piscsi_dbg[1], scsi_cmd_name(piscsi_dbg[1]));
465 DEBUG("Len: %d - %.2X %.2X %.2X - Command Length: %d\n", piscsi_dbg[0], piscsi_dbg[1], piscsi_dbg[2], piscsi_dbg[3], piscsi_dbg[4]);
467 case DBG_SCSI_UNKNOWN_MODESENSE:
468 DEBUG("[!!!PISCSI] SCSI: Unknown modesense %.4X\n", piscsi_dbg[0]);
470 case DBG_SCSI_UNKNOWN_COMMAND:
471 DEBUG("[!!!PISCSI] SCSI: Unknown command %.4X\n", piscsi_dbg[0]);
474 DEBUG("[!!!PISCSI] SCSI: An error occured: %.4X\n", piscsi_dbg[0]);
477 DEBUG_TRIVIAL("[PISCSI] IO Command %d (%s)\n", piscsi_dbg[0], io_cmd_name(piscsi_dbg[0]));
479 case DBG_IOCMD_UNHANDLED:
480 DEBUG("[!!!PISCSI] WARN: IO command %.4X (%s) is unhandled by driver.\n", piscsi_dbg[0], io_cmd_name(piscsi_dbg[0]));
482 case DBG_SCSI_FORMATDEVICE:
483 DEBUG("[PISCSI] Get SCSI FormatDevice MODE SENSE.\n");
486 DEBUG("[PISCSI] Get SCSI RDG MODE SENSE.\n");
488 case DBG_SCSICMD_RW10:
490 r = get_mapped_item_by_address(cfg, piscsi_dbg[0]);
491 struct SCSICmd_RW10 *rwdat = NULL;
494 uint32_t addr = piscsi_dbg[0] - cfg->map_offset[r];
495 rwdat = (struct SCSICmd_RW10 *)(&cfg->map_data[r][addr]);
498 DEBUG_TRIVIAL("[RW10] scsiData: %.8X\n", piscsi_dbg[0]);
499 for (int i = 0; i < 10; i++) {
500 data[i] = read8(piscsi_dbg[0] + i);
505 DEBUG_TRIVIAL("[RW10] CMD: %.2X\n", rwdat->opcode);
506 DEBUG_TRIVIAL("[RW10] RDP: %.2X\n", rwdat->rdprotect_flags);
507 DEBUG_TRIVIAL("[RW10] Block: %d (%d)\n", rwdat->block, BE(rwdat->block));
508 DEBUG_TRIVIAL("[RW10] Res_Group: %.2X\n", rwdat->res_groupnum);
509 DEBUG_TRIVIAL("[RW10] Len: %d (%d)\n", rwdat->len, BE16(rwdat->len));
513 case DBG_SCSI_DEBUG_MODESENSE_6:
514 DEBUG_TRIVIAL("[PISCSI] SCSI ModeSense debug. Data: %.8X\n", piscsi_dbg[0]);
515 r = get_mapped_item_by_address(cfg, piscsi_dbg[0]);
518 uint32_t addr = piscsi_dbg[0] - cfg->map_offset[r];
519 struct SCSICmd_ModeSense6 *sense = (struct SCSICmd_ModeSense6 *)(&cfg->map_data[r][addr]);
520 DEBUG_TRIVIAL("[SenseData] CMD: %.2X\n", sense->opcode);
521 DEBUG_TRIVIAL("[SenseData] DBD: %d\n", sense->reserved_dbd & 0x04);
522 DEBUG_TRIVIAL("[SenseData] PC: %d\n", (sense->pc_pagecode & 0xC0 >> 6));
523 DEBUG_TRIVIAL("[SenseData] PageCodes: %.2X %.2X\n", (sense->pc_pagecode & 0x3F), sense->subpage_code);
524 DEBUG_TRIVIAL("[SenseData] AllocLen: %d\n", sense->alloc_len);
525 DEBUG_TRIVIAL("[SenseData] Control: %.2X (%d)\n", sense->control, sense->control);
529 DEBUG("[!!!PISCSI] ModeSense data not immediately available.\n");
533 DEBUG("[!!!PISCSI] No debug message available for index %d.\n", index);
538 #define DEBUGME_SIMPLE(i, s) case i: DEBUG(s); break;
540 void piscsi_debugme(uint32_t index) {
542 DEBUGME_SIMPLE(1, "[PISCSI-DEBUGME] Arrived at DiagEntry.\n");
543 DEBUGME_SIMPLE(2, "[PISCSI-DEBUGME] Arrived at BootEntry, for some reason.\n");
544 DEBUGME_SIMPLE(3, "[PISCSI-DEBUGME] Init: Interrupt disable.\n");
545 DEBUGME_SIMPLE(4, "[PISCSI-DEBUGME] Init: Copy/reloc driver.\n");
546 DEBUGME_SIMPLE(5, "[PISCSI-DEBUGME] Init: InitResident.\n");
547 DEBUGME_SIMPLE(7, "[PISCSI-DEBUGME] Init: Begin partition loop.\n");
548 DEBUGME_SIMPLE(8, "[PISCSI-DEBUGME] Init: Partition loop done. Cleaning up and returning to Exec.\n");
549 DEBUGME_SIMPLE(9, "[PISCSI-DEBUGME] Init: Load file systems.\n");
550 DEBUGME_SIMPLE(10, "[PISCSI-DEBUGME] Init: AllocMem for resident.\n");
551 DEBUGME_SIMPLE(11, "[PISCSI-DEBUGME] Init: Checking if resident is loaded.\n");
552 DEBUGME_SIMPLE(22, "[PISCSI-DEBUGME] Arrived at BootEntry.\n");
554 DEBUG("[PISCSI-DEBUGME] LoadFileSystems: Opening FileSystem.resource.\n");
557 DEBUGME_SIMPLE(33, "[PISCSI-DEBUGME] FileSystem.resource not available, creating.\n");
559 DEBUG("[PISCSI-DEBUGME] OpenResource result: %d\n", piscsi_u32[0]);
565 DEBUG("[PISCSI-DEBUGME] stuff output\n");
568 DEBUG("[PISCSI-DEBUGME] Debug pointers: %.8X %.8X %.8X %.8X\n", piscsi_u32[0], piscsi_u32[1], piscsi_u32[2], piscsi_u32[3]);
571 DEBUG("[!!!PISCSI-DEBUGME] No debugme message for index %d!\n", index);
576 stop_cpu_emulation(1);
580 void handle_piscsi_write(uint32_t addr, uint32_t val, uint8_t type) {
587 struct piscsi_dev *d = &devs[piscsi_cur_drive];
589 uint16_t cmd = (addr & 0xFFFF);
592 case PISCSI_CMD_READ64:
593 case PISCSI_CMD_READ:
594 case PISCSI_CMD_READBYTES:
597 DEBUG("[!!!PISCSI] BUG: Attempted read from unmapped drive %d.\n", val);
601 if (cmd == PISCSI_CMD_READBYTES) {
602 DEBUG("[PISCSI-%d] %d byte READBYTES from block %d to address %.8X\n", val, piscsi_u32[1], piscsi_u32[0] / d->block_size, piscsi_u32[2]);
603 uint32_t src = piscsi_u32[0];
604 d->lba = (src / d->block_size);
605 lseek(d->fd, src, SEEK_SET);
607 else if (cmd == PISCSI_CMD_READ) {
608 DEBUG("[PISCSI-%d] %d byte READ from block %d to address %.8X\n", val, piscsi_u32[1], piscsi_u32[0], piscsi_u32[2]);
609 d->lba = piscsi_u32[0];
610 lseek(d->fd, (piscsi_u32[0] * d->block_size), SEEK_SET);
613 uint64_t src = piscsi_u32[3];
614 src = (src << 32) | piscsi_u32[0];
615 DEBUG("[PISCSI-%d] %d byte READ64 from block %lld to address %.8X\n", val, piscsi_u32[1], (src / d->block_size), piscsi_u32[2]);
616 d->lba = (src / d->block_size);
617 lseek64(d->fd, src, SEEK_SET);
620 map = get_mapped_data_pointer_by_address(cfg, piscsi_u32[2]);
622 DEBUG_TRIVIAL("[PISCSI-%d] \"DMA\" Read goes to mapped range %d.\n", val, r);
623 read(d->fd, map, piscsi_u32[1]);
626 DEBUG_TRIVIAL("[PISCSI-%d] No mapped range found for read.\n", val);
628 for (uint32_t i = 0; i < piscsi_u32[1]; i++) {
630 m68k_write_memory_8(piscsi_u32[2] + i, (uint32_t)c);
634 case PISCSI_CMD_WRITE64:
635 case PISCSI_CMD_WRITE:
636 case PISCSI_CMD_WRITEBYTES:
639 DEBUG ("[PISCSI] BUG: Attempted write to unmapped drive %d.\n", val);
643 if (cmd == PISCSI_CMD_WRITEBYTES) {
644 DEBUG("[PISCSI-%d] %d byte WRITEBYTES to block %d from address %.8X\n", val, piscsi_u32[1], piscsi_u32[0] / d->block_size, piscsi_u32[2]);
645 uint32_t src = piscsi_u32[0];
646 d->lba = (src / d->block_size);
647 lseek(d->fd, src, SEEK_SET);
649 else if (cmd == PISCSI_CMD_WRITE) {
650 DEBUG("[PISCSI-%d] %d byte WRITE to block %d from address %.8X\n", val, piscsi_u32[1], piscsi_u32[0], piscsi_u32[2]);
651 d->lba = piscsi_u32[0];
652 lseek(d->fd, (piscsi_u32[0] * d->block_size), SEEK_SET);
655 uint64_t src = piscsi_u32[3];
656 src = (src << 32) | piscsi_u32[0];
657 DEBUG("[PISCSI-%d] %d byte WRITE64 to block %lld from address %.8X\n", val, piscsi_u32[1], (src / d->block_size), piscsi_u32[2]);
658 d->lba = (src / d->block_size);
659 lseek64(d->fd, src, SEEK_SET);
662 map = get_mapped_data_pointer_by_address(cfg, piscsi_u32[2]);
664 DEBUG_TRIVIAL("[PISCSI-%d] \"DMA\" Write comes from mapped range %d.\n", val, r);
665 write(d->fd, map, piscsi_u32[1]);
668 DEBUG_TRIVIAL("[PISCSI-%d] No mapped range found for write.\n", val);
670 for (uint32_t i = 0; i < piscsi_u32[1]; i++) {
671 c = m68k_read_memory_8(piscsi_u32[2] + i);
676 case PISCSI_CMD_ADDR1: case PISCSI_CMD_ADDR2: case PISCSI_CMD_ADDR3: case PISCSI_CMD_ADDR4: {
677 int i = ((addr & 0xFFFF) - PISCSI_CMD_ADDR1) / 4;
681 case PISCSI_CMD_DRVNUM:
683 piscsi_cur_drive = 255;
686 piscsi_cur_drive = val / 10;
687 if (piscsi_cur_drive > NUM_UNITS) {
688 piscsi_cur_drive = 255;
690 if (piscsi_cur_drive != 255) {
691 DEBUG("[PISCSI] (%s) Drive number set to %d (%d)\n", op_type_names[type], piscsi_cur_drive, val);
694 case PISCSI_CMD_DRVNUMX:
695 piscsi_cur_drive = val;
696 DEBUG("[PISCSI] DRVNUMX: %d.\n", val);
698 case PISCSI_CMD_DEBUGME:
701 case PISCSI_CMD_DRIVER:
702 DEBUG("[PISCSI] Driver copy/patch called, destination address %.8X.\n", val);
703 r = get_mapped_item_by_address(cfg, val);
705 uint32_t addr = val - cfg->map_offset[r];
706 uint8_t *dst_data = cfg->map_data[r];
707 uint8_t cur_partition = 0;
708 memcpy(dst_data + addr, piscsi_rom_ptr + PISCSI_DRIVER_OFFSET, 0x4000 - PISCSI_DRIVER_OFFSET);
710 piscsi_hinfo.base_offset = val;
712 reloc_hunks(piscsi_hreloc, dst_data + addr, &piscsi_hinfo);
714 #define PUTNODELONG(val) *(uint32_t *)&dst_data[p_offs] = htobe32(val); p_offs += 4;
715 #define PUTNODELONGBE(val) *(uint32_t *)&dst_data[p_offs] = val; p_offs += 4;
717 for (int i = 0; i < 128; i++) {
718 rom_partitions[i] = 0;
719 rom_partition_prio[i] = 0;
720 rom_partition_dostype[i] = 0;
722 rom_cur_partition = 0;
724 uint32_t data_addr = addr + 0x3F00;
725 sprintf((char *)dst_data + data_addr, "pi-scsi.device");
726 uint32_t addr2 = addr + 0x4000;
727 for (int i = 0; i < NUM_UNITS; i++) {
728 if (devs[i].fd != -1)
729 piscsi_find_partitions(&devs[i]);
733 if (devs[i].num_partitions) {
734 uint32_t p_offs = addr2;
735 DEBUG("[PISCSI] Adding %d partitions for unit %d\n", devs[i].num_partitions, i);
736 for (uint32_t j = 0; j < devs[i].num_partitions; j++) {
737 DEBUG("Partition %d: %s\n", j, devs[i].pb[j]->pb_DriveName + 1);
738 sprintf((char *)dst_data + p_offs, "%s", devs[i].pb[j]->pb_DriveName + 1);
740 PUTNODELONG(addr2 + cfg->map_offset[r]);
741 PUTNODELONG(data_addr + cfg->map_offset[r]);
742 PUTNODELONG((i * 10));
744 uint32_t nodesize = (be32toh(devs[i].pb[j]->pb_Environment[0]) + 1) * 4;
745 memcpy(dst_data + p_offs, devs[i].pb[j]->pb_Environment, nodesize);
747 struct pihd_dosnode_data *dat = (struct pihd_dosnode_data *)(&dst_data[addr2+0x20]);
749 if (BE(devs[i].pb[j]->pb_Flags) & 0x01) {
750 DEBUG("Partition is bootable.\n");
751 rom_partition_prio[cur_partition] = 0;
755 DEBUG("Partition is not bootable.\n");
756 rom_partition_prio[cur_partition] = -128;
757 dat->priority = htobe32(-128);
760 DEBUG("DOSNode Data:\n");
761 DEBUG("Name: %s Device: %s\n", dst_data + addr2, dst_data + data_addr);
762 DEBUG("Unit: %d Flags: %d Pad1: %d\n", BE(dat->unit), BE(dat->flags), BE(dat->pad1));
763 DEBUG("Node len: %d Block len: %d\n", BE(dat->node_len) * 4, BE(dat->block_len) * 4);
764 DEBUG("H: %d SPB: %d BPS: %d\n", BE(dat->surf), BE(dat->secs_per_block), BE(dat->blocks_per_track));
765 DEBUG("Reserved: %d Prealloc: %d\n", BE(dat->reserved_blocks), BE(dat->pad2));
766 DEBUG("Interleaved: %d Buffers: %d Memtype: %d\n", BE(dat->interleave), BE(dat->buffers), BE(dat->mem_type));
767 DEBUG("Lowcyl: %d Highcyl: %d Prio: %d\n", BE(dat->lowcyl), BE(dat->highcyl), BE(dat->priority));
768 DEBUG("Maxtransfer: %.8X Mask: %.8X\n", BE(dat->maxtransfer), BE(dat->transfer_mask));
769 DEBUG("DOSType: %.8X\n", BE(dat->dostype));
771 rom_partitions[cur_partition] = addr2 + 0x20 + cfg->map_offset[r];
772 rom_partition_dostype[cur_partition] = dat->dostype;
783 case PISCSI_CMD_NEXTPART:
784 DEBUG("[PISCSI] Switch partition %d -> %d\n", rom_cur_partition, rom_cur_partition + 1);
787 case PISCSI_CMD_NEXTFS:
788 DEBUG("[PISCSI] Switch file file system %d -> %d\n", rom_cur_fs, rom_cur_fs + 1);
791 case PISCSI_CMD_COPYFS:
792 DEBUG("[PISCSI] Copy file system %d to %.8X and reloc.\n", rom_cur_fs, piscsi_u32[2]);
793 r = get_mapped_item_by_address(cfg, piscsi_u32[2]);
795 uint32_t addr = piscsi_u32[2] - cfg->map_offset[r];
796 memcpy(cfg->map_data[r] + addr, filesystems[rom_cur_fs].binary_data, filesystems[rom_cur_fs].h_info.byte_size);
797 filesystems[rom_cur_fs].h_info.base_offset = piscsi_u32[2];
798 reloc_hunks(filesystems[rom_cur_fs].relocs, cfg->map_data[r] + addr, &filesystems[rom_cur_fs].h_info);
799 filesystems[rom_cur_fs].handler = piscsi_u32[2];
802 case PISCSI_CMD_SETFSH: {
804 DEBUG("[PISCSI] Set handler for partition %d (DeviceNode: %.8X)\n", rom_cur_partition, val);
805 r = get_mapped_item_by_address(cfg, val);
807 uint32_t addr = val - cfg->map_offset[r];
808 struct DeviceNode *node = (struct DeviceNode *)(cfg->map_data[r] + addr);
809 char *dosID = (char *)&rom_partition_dostype[rom_cur_partition];
811 DEBUG("[PISCSI] Partition DOSType is %c%c%c/%d\n", dosID[0], dosID[1], dosID[2], dosID[3]);
812 for (i = 0; i < piscsi_num_fs; i++) {
813 if (rom_partition_dostype[rom_cur_partition] == filesystems[i].FS_ID) {
814 node->dn_SegList = htobe32((((filesystems[i].handler) + filesystems[i].h_info.header_size) >> 2));
815 node->dn_GlobalVec = 0xFFFFFFFF;
819 node->dn_GlobalVec = 0xFFFFFFFF;
820 node->dn_SegList = 0;
821 printf("[!!!PISCSI] Found no handler for file system %c%c%c/%d\n", dosID[0], dosID[1], dosID[2], dosID[3]);
823 DEBUG("[FS-HANDLER] Next: %d Type: %.8X\n", BE(node->dn_Next), BE(node->dn_Type));
824 DEBUG("[FS-HANDLER] Task: %d Lock: %d\n", BE(node->dn_Task), BE(node->dn_Lock));
825 DEBUG("[FS-HANDLER] Handler: %d Stacksize: %d\n", BE((uint32_t)node->dn_Handler), BE(node->dn_StackSize));
826 DEBUG("[FS-HANDLER] Priority: %d Startup: %d (%.8X)\n", BE((uint32_t)node->dn_Priority), BE(node->dn_Startup), BE(node->dn_Startup));
827 DEBUG("[FS-HANDLER] SegList: %.8X GlobalVec: %d\n", BE((uint32_t)node->dn_SegList), BE(node->dn_GlobalVec));
828 DEBUG("[PISCSI] Handler for partition %.8X set to %.8X (%.8X).\n", BE((uint32_t)node->dn_Name), filesystems[i].FS_ID, filesystems[i].handler);
832 case PISCSI_CMD_LOADFS: {
833 DEBUG("[PISCSI] Attempt to load file system for partition %d from disk.\n", rom_cur_partition);
834 r = get_mapped_item_by_address(cfg, val);
836 char *dosID = (char *)&rom_partition_dostype[rom_cur_partition];
837 filesystems[piscsi_num_fs].binary_data = NULL;
838 filesystems[piscsi_num_fs].fhb = NULL;
839 filesystems[piscsi_num_fs].FS_ID = rom_partition_dostype[rom_cur_partition];
840 filesystems[piscsi_num_fs].handler = 0;
841 if (load_fs(&filesystems[piscsi_num_fs], dosID) != -1) {
842 printf("[FSHD-Late] Loaded file system %c%c%c/%d from fs storage.\n", dosID[0], dosID[1], dosID[2], dosID[3]);
843 piscsi_u32[3] = piscsi_num_fs;
844 rom_cur_fs = piscsi_num_fs;
847 printf("[FSHD-Late] Failed to load file system %c%c%c/%d from fs storage.\n", dosID[0], dosID[1], dosID[2], dosID[3]);
848 piscsi_u32[3] = 0xFFFFFFFF;
853 case PISCSI_DBG_VAL1: case PISCSI_DBG_VAL2: case PISCSI_DBG_VAL3: case PISCSI_DBG_VAL4:
854 case PISCSI_DBG_VAL5: case PISCSI_DBG_VAL6: case PISCSI_DBG_VAL7: case PISCSI_DBG_VAL8: {
855 int i = ((addr & 0xFFFF) - PISCSI_DBG_VAL1) / 4;
860 print_piscsi_debug_message(val);
863 DEBUG("[!!!PISCSI] WARN: Unhandled %s register write to %.8X: %d\n", op_type_names[type], addr, val);
870 uint32_t handle_piscsi_read(uint32_t addr, uint8_t type) {
873 if ((addr & 0xFFFF) >= PISCSI_CMD_ROM) {
874 uint32_t romoffs = (addr & 0xFFFF) - PISCSI_CMD_ROM;
875 if (romoffs < (piscsi_rom_size + PIB)) {
876 //DEBUG("[PISCSI] %s read from Boot ROM @$%.4X (%.8X): ", op_type_names[type], romoffs, addr);
880 v = piscsi_rom_ptr[romoffs - PIB];
881 //DEBUG("%.2X\n", v);
884 v = be16toh(*((uint16_t *)&piscsi_rom_ptr[romoffs - PIB]));
885 //DEBUG("%.4X\n", v);
887 case OP_TYPE_LONGWORD:
888 v = be32toh(*((uint32_t *)&piscsi_rom_ptr[romoffs - PIB]));
889 //DEBUG("%.8X\n", v);
897 switch (addr & 0xFFFF) {
898 case PISCSI_CMD_ADDR1: case PISCSI_CMD_ADDR2: case PISCSI_CMD_ADDR3: case PISCSI_CMD_ADDR4: {
899 int i = ((addr & 0xFFFF) - PISCSI_CMD_ADDR1) / 4;
900 return piscsi_u32[i];
903 case PISCSI_CMD_DRVTYPE:
904 if (devs[piscsi_cur_drive].fd == -1) {
905 DEBUG("[PISCSI] %s Read from DRVTYPE %d, drive not attached.\n", op_type_names[type], piscsi_cur_drive);
908 DEBUG("[PISCSI] %s Read from DRVTYPE %d, drive attached.\n", op_type_names[type], piscsi_cur_drive);
911 case PISCSI_CMD_DRVNUM:
912 return piscsi_cur_drive;
914 case PISCSI_CMD_CYLS:
915 DEBUG("[PISCSI] %s Read from CYLS %d: %d\n", op_type_names[type], piscsi_cur_drive, devs[piscsi_cur_drive].c);
916 return devs[piscsi_cur_drive].c;
918 case PISCSI_CMD_HEADS:
919 DEBUG("[PISCSI] %s Read from HEADS %d: %d\n", op_type_names[type], piscsi_cur_drive, devs[piscsi_cur_drive].h);
920 return devs[piscsi_cur_drive].h;
922 case PISCSI_CMD_SECS:
923 DEBUG("[PISCSI] %s Read from SECS %d: %d\n", op_type_names[type], piscsi_cur_drive, devs[piscsi_cur_drive].s);
924 return devs[piscsi_cur_drive].s;
926 case PISCSI_CMD_BLOCKS: {
927 uint32_t blox = devs[piscsi_cur_drive].fs / devs[piscsi_cur_drive].block_size;
928 DEBUG("[PISCSI] %s Read from BLOCKS %d: %d\n", op_type_names[type], piscsi_cur_drive, (uint32_t)(devs[piscsi_cur_drive].fs / devs[piscsi_cur_drive].block_size));
929 DEBUG("fs: %lld (%d)\n", devs[piscsi_cur_drive].fs, blox);
933 case PISCSI_CMD_GETPART: {
934 DEBUG("[PISCSI] Get ROM partition %d offset: %.8X\n", rom_cur_partition, rom_partitions[rom_cur_partition]);
935 return rom_partitions[rom_cur_partition];
938 case PISCSI_CMD_GETPRIO:
939 DEBUG("[PISCSI] Get partition %d boot priority: %d\n", rom_cur_partition, rom_partition_prio[rom_cur_partition]);
940 return rom_partition_prio[rom_cur_partition];
942 case PISCSI_CMD_CHECKFS:
943 DEBUG("[PISCSI] Get current loaded file system: %.8X\n", filesystems[rom_cur_fs].FS_ID);
944 return filesystems[rom_cur_fs].FS_ID;
945 case PISCSI_CMD_FSSIZE:
946 DEBUG("[PISCSI] Get alloc size of loaded file system: %d\n", filesystems[rom_cur_fs].h_info.alloc_size);
947 return filesystems[rom_cur_fs].h_info.alloc_size;
948 case PISCSI_CMD_BLOCKSIZE:
949 DEBUG("[PISCSI] Get block size of drive %d: %d\n", piscsi_cur_drive, devs[piscsi_cur_drive].block_size);
950 return devs[piscsi_cur_drive].block_size;
951 case PISCSI_CMD_GET_FS_INFO: {
953 uint32_t val = piscsi_u32[1];
954 int32_t r = get_mapped_item_by_address(cfg, val);
957 uint32_t addr = val - cfg->map_offset[r];
958 char *dosID = (char *)&rom_partition_dostype[rom_cur_partition];
959 DEBUG("[PISCSI-GET-FS-INFO] Partition DOSType is %c%c%c/%d\n", dosID[0], dosID[1], dosID[2], dosID[3]);
961 for (i = 0; i < piscsi_num_fs; i++) {
962 if (rom_partition_dostype[rom_cur_partition] == filesystems[i].FS_ID) {
970 DEBUG("[!!!PISCSI] WARN: Unhandled %s register read from %.8X\n", op_type_names[type], addr);