8 #include "../hunk-reloc.h"
10 #include "piscsi-enums.h"
11 #include "../../../config_file/config_file.h"
12 #include "../../../gpio/ps_protocol.h"
14 #define BE(val) be32toh(val)
15 #define BE16(val) be16toh(val)
17 // Uncomment the line below to enable debug output
18 //#define PISCSI_DEBUG
22 //#define DEBUG_TRIVIAL printf
23 #define DEBUG_TRVIAL(...)
25 extern void stop_cpu_emulation(uint8_t disasm_cur);
27 static const char *op_type_names[4] = {
35 #define DEBUG_TRIVIAL(...)
36 #define stop_cpu_emulation(...)
43 extern struct emulator_config *cfg;
45 struct piscsi_dev devs[8];
46 struct piscsi_fs filesystems[NUM_FILESYSTEMS];
48 uint8_t piscsi_num_fs = 0;
50 uint8_t piscsi_cur_drive = 0;
51 uint32_t piscsi_u32[4];
52 uint32_t piscsi_dbg[8];
53 uint32_t piscsi_rom_size = 0;
54 uint8_t *piscsi_rom_ptr;
56 uint32_t rom_partitions[128];
57 uint32_t rom_partition_prio[128];
58 uint32_t rom_partition_dostype[128];
59 uint32_t rom_cur_partition = 0, rom_cur_fs = 0;
61 extern unsigned char ac_piscsi_rom[];
63 //static const char *partition_marker = "PART";
65 struct hunk_info piscsi_hinfo;
66 struct hunk_reloc piscsi_hreloc[256];
69 for (int i = 0; i < 8; i++) {
72 devs[i].c = devs[i].h = devs[i].s = 0;
75 FILE *in = fopen("./platforms/amiga/piscsi/piscsi.rom", "rb");
77 printf("[PISCSI] Could not open PISCSI Boot ROM file for reading!\n");
78 // Zero out the boot ROM offset from the autoconfig ROM.
79 ac_piscsi_rom[20] = 0;
80 ac_piscsi_rom[21] = 0;
81 ac_piscsi_rom[22] = 0;
82 ac_piscsi_rom[23] = 0;
85 fseek(in, 0, SEEK_END);
86 piscsi_rom_size = ftell(in);
87 fseek(in, 0, SEEK_SET);
88 piscsi_rom_ptr = malloc(piscsi_rom_size);
89 fread(piscsi_rom_ptr, piscsi_rom_size, 1, in);
91 fseek(in, PISCSI_DRIVER_OFFSET, SEEK_SET);
92 process_hunks(in, &piscsi_hinfo, piscsi_hreloc, PISCSI_DRIVER_OFFSET);
95 printf("[PISCSI] Loaded Boot ROM.\n");
98 void piscsi_find_partitions(struct piscsi_dev *d) {
100 int cur_partition = 0;
103 for (int i = 0; i < 16; i++) {
110 if (!d->rdb || d->rdb->rdb_PartitionList == 0) {
111 DEBUG("[PISCSI] No partitions on disk.\n");
115 char *block = malloc(512);
117 lseek(fd, BE(d->rdb->rdb_PartitionList) * 512, SEEK_SET);
119 read(fd, block, 512);
121 uint32_t first = be32toh(*((uint32_t *)&block[0]));
122 if (first != PART_IDENTIFIER) {
123 DEBUG("Entry at block %d is not a valid partition. Aborting.\n", BE(d->rdb->rdb_PartitionList));
127 struct PartitionBlock *pb = (struct PartitionBlock *)block;
128 tmp = pb->pb_DriveName[0];
129 pb->pb_DriveName[tmp + 1] = 0x00;
130 DEBUG("[PISCSI] Partition %d: %s\n", cur_partition, pb->pb_DriveName + 1);
131 DEBUG("Checksum: %.8X HostID: %d\n", BE(pb->pb_ChkSum), BE(pb->pb_HostID));
132 DEBUG("Flags: %d (%.8X) Devflags: %d (%.8X)\n", BE(pb->pb_Flags), BE(pb->pb_Flags), BE(pb->pb_DevFlags), BE(pb->pb_DevFlags));
133 d->pb[cur_partition] = pb;
135 if (d->pb[cur_partition]->pb_Next != 0xFFFFFFFF) {
136 uint64_t next = be32toh(pb->pb_Next);
138 lseek64(fd, next * 512, SEEK_SET);
140 DEBUG("[PISCSI] Next partition at block %d.\n", be32toh(pb->pb_Next));
143 DEBUG("[PISCSI] No more partitions on disk.\n");
144 d->num_partitions = cur_partition + 1;
145 d->fshd_offs = lseek64(fd, 0, SEEK_CUR);
150 int piscsi_parse_rdb(struct piscsi_dev *d) {
153 uint8_t *block = malloc(512);
155 lseek(fd, 0, SEEK_SET);
156 for (i = 0; i < RDB_BLOCK_LIMIT; i++) {
157 read(fd, block, 512);
158 uint32_t first = be32toh(*((uint32_t *)&block[0]));
159 if (first == RDB_IDENTIFIER)
164 struct RigidDiskBlock *rdb = (struct RigidDiskBlock *)block;
165 DEBUG("[PISCSI] RDB found at block %d.\n", i);
166 d->c = be32toh(rdb->rdb_Cylinders);
167 d->h = be32toh(rdb->rdb_Heads);
168 d->s = be32toh(rdb->rdb_Sectors);
169 d->num_partitions = 0;
170 DEBUG("[PISCSI] RDB - first partition at block %d.\n", be32toh(rdb->rdb_PartitionList));
174 sprintf(d->rdb->rdb_DriveInitName, "pi-scsi.device");
184 void piscsi_refresh_drives() {
187 for (int i = 0; i < NUM_FILESYSTEMS; i++) {
188 if (filesystems[i].binary_data) {
189 free(filesystems[i].binary_data);
190 filesystems[i].binary_data = NULL;
192 if (filesystems[i].fhb) {
193 free(filesystems[i].fhb);
194 filesystems[i].fhb = NULL;
196 filesystems[i].h_info.current_hunk = 0;
197 filesystems[i].h_info.reloc_hunks = 0;
198 filesystems[i].FS_ID = 0;
199 filesystems[i].handler = 0;
204 for (int i = 0; i < NUM_UNITS; i++) {
205 if (devs[i].fd != -1) {
206 piscsi_parse_rdb(&devs[i]);
207 piscsi_find_partitions(&devs[i]);
208 piscsi_find_filesystems(&devs[i]);
213 void piscsi_find_filesystems(struct piscsi_dev *d) {
214 if (!d->num_partitions)
217 uint8_t fs_found = 0;
219 uint8_t *fhb_block = malloc(512);
221 lseek64(d->fd, d->fshd_offs, SEEK_SET);
223 struct FileSysHeaderBlock *fhb = (struct FileSysHeaderBlock *)fhb_block;
224 read(d->fd, fhb_block, 512);
226 while (BE(fhb->fhb_ID) == FS_IDENTIFIER) {
227 char *dosID = (char *)&fhb->fhb_DosType;
229 uint16_t *fsVer = (uint16_t *)&fhb->fhb_Version;
231 DEBUG("[FSHD] FSHD Block found.\n");
232 DEBUG("[FSHD] HostID: %d Next: %d Size: %d\n", BE(fhb->fhb_HostID), BE(fhb->fhb_Next), BE(fhb->fhb_SummedLongs));
233 DEBUG("[FSHD] Flags: %.8X DOSType: %c%c%c/%d\n", BE(fhb->fhb_Flags), dosID[0], dosID[1], dosID[2], dosID[3]);
234 DEBUG("[FSHD] Version: %d.%d\n", BE16(fsVer[0]), BE16(fsVer[1]));
235 DEBUG("[FSHD] Patchflags: %d Type: %d\n", BE(fhb->fhb_PatchFlags), BE(fhb->fhb_Type));
236 DEBUG("[FSHD] Task: %d Lock: %d\n", BE(fhb->fhb_Task), BE(fhb->fhb_Lock));
237 DEBUG("[FSHD] Handler: %d StackSize: %d\n", BE(fhb->fhb_Handler), BE(fhb->fhb_StackSize));
238 DEBUG("[FSHD] Prio: %d Startup: %d\n", BE(fhb->fhb_Priority), BE(fhb->fhb_Startup));
239 DEBUG("[FSHD] SegListBlocks: %d GlobalVec: %d\n", BE(fhb->fhb_Priority), BE(fhb->fhb_Startup));
240 DEBUG("[FSHD] FileSysName: %s\n", fhb->fhb_FileSysName + 1);
243 for (int i = 0; i < NUM_FILESYSTEMS; i++) {
244 if (filesystems[i].FS_ID == fhb->fhb_DosType) {
245 DEBUG("[FSHD] File system %c%c%c/%d already loaded. Skipping.\n", dosID[0], dosID[1], dosID[2], dosID[3]);
246 if (BE(fhb->fhb_Next) == 0xFFFFFFFF)
249 goto skip_fs_load_lseg;
253 if (load_lseg(d->fd, &filesystems[piscsi_num_fs].binary_data, &filesystems[piscsi_num_fs].h_info, filesystems[piscsi_num_fs].relocs) != -1) {
254 filesystems[piscsi_num_fs].FS_ID = fhb->fhb_DosType;
255 filesystems[piscsi_num_fs].fhb = fhb;
256 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]);
262 lseek64(d->fd, BE(fhb->fhb_Next) * 512, SEEK_SET);
263 fhb_block = malloc(512);
264 fhb = (struct FileSysHeaderBlock *)fhb_block;
265 read(d->fd, fhb_block, 512);
269 DEBUG("[!!!FSHD] No file systems found on hard drive!\n");
277 void piscsi_map_drive(char *filename, uint8_t index) {
279 printf("[PISCSI] Drive index %d out of range.\nUnable to map file %s to drive.\n", index, filename);
283 int32_t tmp_fd = open(filename, O_RDWR);
285 printf("[PISCSI] Failed to open file %s, could not map drive %d.\n", filename, index);
289 struct piscsi_dev *d = &devs[index];
291 uint64_t file_size = lseek(tmp_fd, 0, SEEK_END);
294 lseek(tmp_fd, 0, SEEK_SET);
295 printf("[PISCSI] Map %d: [%s] - %llu bytes.\n", index, filename, file_size);
297 if (piscsi_parse_rdb(d) == -1) {
298 DEBUG("[PISCSI] No RDB found on disk, making up some CHS values.\n");
301 d->c = (file_size / 512) / (d->s * d->h);
303 printf("[PISCSI] CHS: %d %d %d\n", d->c, d->h, d->s);
305 piscsi_find_partitions(d);
306 piscsi_find_filesystems(d);
309 void piscsi_unmap_drive(uint8_t index) {
310 if (devs[index].fd != -1) {
311 DEBUG("[PISCSI] Unmapped drive %d.\n", index);
312 close (devs[index].fd);
317 char *io_cmd_name(int index) {
319 case CMD_INVALID: return "INVALID";
320 case CMD_RESET: return "RESET";
321 case CMD_READ: return "READ";
322 case CMD_WRITE: return "WRITE";
323 case CMD_UPDATE: return "UPDATE";
324 case CMD_CLEAR: return "CLEAR";
325 case CMD_STOP: return "STOP";
326 case CMD_START: return "START";
327 case CMD_FLUSH: return "FLUSH";
328 case TD_MOTOR: return "TD_MOTOR";
329 case TD_SEEK: return "SEEK";
330 case TD_FORMAT: return "FORMAT";
331 case TD_REMOVE: return "REMOVE";
332 case TD_CHANGENUM: return "CHANGENUM";
333 case TD_CHANGESTATE: return "CHANGESTATE";
334 case TD_PROTSTATUS: return "PROTSTATUS";
335 case TD_RAWREAD: return "RAWREAD";
336 case TD_RAWWRITE: return "RAWWRITE";
337 case TD_GETDRIVETYPE: return "GETDRIVETYPE";
338 case TD_GETNUMTRACKS: return "GETNUMTRACKS";
339 case TD_ADDCHANGEINT: return "ADDCHANGEINT";
340 case TD_REMCHANGEINT: return "REMCHANGEINT";
341 case TD_GETGEOMETRY: return "GETGEOMETRY";
342 case TD_EJECT: return "EJECT";
343 case TD_LASTCOMM: return "LASTCOMM/READ64";
344 case TD_WRITE64: return "WRITE64";
345 case HD_SCSICMD: return "HD_SCSICMD";
346 case NSCMD_DEVICEQUERY: return "NSCMD_DEVICEQUERY";
347 case NSCMD_TD_READ64: return "NSCMD_TD_READ64";
348 case NSCMD_TD_WRITE64: return "NSCMD_TD_WRITE64";
349 case NSCMD_TD_FORMAT64: return "NSCMD_TD_FORMAT64";
352 return "[!!!PISCSI] Unhandled IO command";
356 #define GETSCSINAME(a) case a: return ""#a"";
357 #define SCSIUNHANDLED(a) return "[!!!PISCSI] Unhandled SCSI command "#a"";
359 char *scsi_cmd_name(int index) {
361 GETSCSINAME(SCSICMD_TEST_UNIT_READY);
362 GETSCSINAME(SCSICMD_INQUIRY);
363 GETSCSINAME(SCSICMD_READ_6);
364 GETSCSINAME(SCSICMD_WRITE_6);
365 GETSCSINAME(SCSICMD_READ_10);
366 GETSCSINAME(SCSICMD_WRITE_10);
367 GETSCSINAME(SCSICMD_READ_CAPACITY_10);
368 GETSCSINAME(SCSICMD_MODE_SENSE_6);
369 GETSCSINAME(SCSICMD_READ_DEFECT_DATA_10);
371 return "[!!!PISCSI] Unhandled SCSI command";
375 void print_piscsi_debug_message(int index) {
380 DEBUG("[PISCSI] Initializing devices.\n");
383 if (piscsi_dbg[0] != 255) {
384 DEBUG("[PISCSI] Opening device %d (%d). Flags: %d (%.2X)\n", piscsi_dbg[0], piscsi_dbg[2], piscsi_dbg[1], piscsi_dbg[1]);
388 DEBUG("[PISCSI] Cleaning up.\n");
391 DEBUG("[PISCSI] C/H/S: %d / %d / %d\n", piscsi_dbg[0], piscsi_dbg[1], piscsi_dbg[2]);
394 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]);
397 DEBUG("[PISCSI] AbortIO!\n");
400 DEBUG("[PISCSI] SCSI Command %d (%s)\n", piscsi_dbg[1], scsi_cmd_name(piscsi_dbg[1]));
401 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]);
403 case DBG_SCSI_UNKNOWN_MODESENSE:
404 DEBUG("[!!!PISCSI] SCSI: Unknown modesense %.4X\n", piscsi_dbg[0]);
406 case DBG_SCSI_UNKNOWN_COMMAND:
407 DEBUG("[!!!PISCSI] SCSI: Unknown command %.4X\n", piscsi_dbg[0]);
410 DEBUG("[!!!PISCSI] SCSI: An error occured: %.4X\n", piscsi_dbg[0]);
413 DEBUG_TRIVIAL("[PISCSI] IO Command %d (%s)\n", piscsi_dbg[0], io_cmd_name(piscsi_dbg[0]));
415 case DBG_IOCMD_UNHANDLED:
416 DEBUG("[!!!PISCSI] WARN: IO command %.4X (%s) is unhandled by driver.\n", piscsi_dbg[0], io_cmd_name(piscsi_dbg[0]));
418 case DBG_SCSI_FORMATDEVICE:
419 DEBUG("[PISCSI] Get SCSI FormatDevice MODE SENSE.\n");
422 DEBUG("[PISCSI] Get SCSI RDG MODE SENSE.\n");
424 case DBG_SCSICMD_RW10:
426 r = get_mapped_item_by_address(cfg, piscsi_dbg[0]);
427 struct SCSICmd_RW10 *rwdat = NULL;
430 uint32_t addr = piscsi_dbg[0] - cfg->map_offset[r];
431 rwdat = (struct SCSICmd_RW10 *)(&cfg->map_data[r][addr]);
434 DEBUG_TRIVIAL("[RW10] scsiData: %.8X\n", piscsi_dbg[0]);
435 for (int i = 0; i < 10; i++) {
436 data[i] = read8(piscsi_dbg[0] + i);
441 DEBUG_TRIVIAL("[RW10] CMD: %.2X\n", rwdat->opcode);
442 DEBUG_TRIVIAL("[RW10] RDP: %.2X\n", rwdat->rdprotect_flags);
443 DEBUG_TRIVIAL("[RW10] Block: %d (%d)\n", rwdat->block, BE(rwdat->block));
444 DEBUG_TRIVIAL("[RW10] Res_Group: %.2X\n", rwdat->res_groupnum);
445 DEBUG_TRIVIAL("[RW10] Len: %d (%d)\n", rwdat->len, BE16(rwdat->len));
449 case DBG_SCSI_DEBUG_MODESENSE_6:
450 DEBUG_TRIVIAL("[PISCSI] SCSI ModeSense debug. Data: %.8X\n", piscsi_dbg[0]);
451 r = get_mapped_item_by_address(cfg, piscsi_dbg[0]);
454 uint32_t addr = piscsi_dbg[0] - cfg->map_offset[r];
455 struct SCSICmd_ModeSense6 *sense = (struct SCSICmd_ModeSense6 *)(&cfg->map_data[r][addr]);
456 DEBUG_TRIVIAL("[SenseData] CMD: %.2X\n", sense->opcode);
457 DEBUG_TRIVIAL("[SenseData] DBD: %d\n", sense->reserved_dbd & 0x04);
458 DEBUG_TRIVIAL("[SenseData] PC: %d\n", (sense->pc_pagecode & 0xC0 >> 6));
459 DEBUG_TRIVIAL("[SenseData] PageCodes: %.2X %.2X\n", (sense->pc_pagecode & 0x3F), sense->subpage_code);
460 DEBUG_TRIVIAL("[SenseData] AllocLen: %d\n", sense->alloc_len);
461 DEBUG_TRIVIAL("[SenseData] Control: %.2X (%d)\n", sense->control, sense->control);
465 DEBUG("[!!!PISCSI] ModeSense data not immediately available.\n");
469 DEBUG("[!!!PISCSI] No debug message available for index %d.\n", index);
474 #define DEBUGME_SIMPLE(i, s) case i: DEBUG(s); break;
476 void piscsi_debugme(uint32_t index) {
478 DEBUGME_SIMPLE(1, "[PISCSI-DEBUGME] Arrived at DiagEntry.\n");
479 DEBUGME_SIMPLE(3, "[PISCSI-DEBUGME] Init: Interrupt disable.\n");
480 DEBUGME_SIMPLE(4, "[PISCSI-DEBUGME] Init: Copy/reloc driver.\n");
481 DEBUGME_SIMPLE(5, "[PISCSI-DEBUGME] Init: InitResident.\n");
482 DEBUGME_SIMPLE(7, "[PISCSI-DEBUGME] Init: Begin partition loop.\n");
483 DEBUGME_SIMPLE(8, "[PISCSI-DEBUGME] Init: Partition loop done. Cleaning up and returning to Exec.\n");
484 DEBUGME_SIMPLE(9, "[PISCSI-DEBUGME] Init: Load file systems.\n");
485 DEBUGME_SIMPLE(10, "[PISCSI-DEBUGME] Init: AllocMem for resident.\n");
486 DEBUGME_SIMPLE(11, "[PISCSI-DEBUGME] Init: Checking if resident is loaded.\n");
487 DEBUGME_SIMPLE(22, "[PISCSI-DEBUGME] Arrived at BootEntry.\n");
488 DEBUGME_SIMPLE(30, "[PISCSI-DEBUGME] LoadFileSystems: Opening FileSystem.resource.\n");
489 DEBUGME_SIMPLE(33, "[PISCSI-DEBUGME] FileSystem.resource not available, creating.\n");
491 DEBUG("[PISCSI-DEBUGME] OpenResource result: %d\n", piscsi_u32[0]);
497 DEBUG("[!!!PISCSI-DEBUGME] No debugme message for index %d!\n", index);
502 stop_cpu_emulation(1);
506 void handle_piscsi_write(uint32_t addr, uint32_t val, uint8_t type) {
512 struct piscsi_dev *d = &devs[piscsi_cur_drive];
514 uint16_t cmd = (addr & 0xFFFF);
517 case PISCSI_CMD_READ64:
518 case PISCSI_CMD_READ:
521 DEBUG("[!!!PISCSI] BUG: Attempted read from unmapped drive %d.\n", val);
525 if (cmd == PISCSI_CMD_READ) {
526 DEBUG("[PISCSI-%d] %d byte READ from block %d to address %.8X\n", val, piscsi_u32[1], piscsi_u32[0], piscsi_u32[2]);
527 d->lba = piscsi_u32[0];
528 lseek(d->fd, (piscsi_u32[0] * 512), SEEK_SET);
531 uint64_t src = piscsi_u32[3];
532 src = (src << 32) | piscsi_u32[0];
533 DEBUG("[PISCSI-%d] %d byte READ64 from block %lld to address %.8X\n", val, piscsi_u32[1], (src / 512), piscsi_u32[2]);
534 d->lba = (src / 512);
535 lseek64(d->fd, src, SEEK_SET);
538 r = get_mapped_item_by_address(cfg, piscsi_u32[2]);
539 if (r != -1 && cfg->map_type[r] == MAPTYPE_RAM) {
540 DEBUG_TRIVIAL("[PISCSI-%d] \"DMA\" Read goes to mapped range %d.\n", val, r);
541 read(d->fd, cfg->map_data[r] + piscsi_u32[2] - cfg->map_offset[r], piscsi_u32[1]);
544 DEBUG_TRIVIAL("[PISCSI-%d] No mapped range found for read.\n", val);
546 for (uint32_t i = 0; i < piscsi_u32[1]; i++) {
548 write8(piscsi_u32[2] + i, (uint32_t)c);
552 case PISCSI_CMD_WRITE64:
553 case PISCSI_CMD_WRITE:
556 DEBUG ("[PISCSI] BUG: Attempted write to unmapped drive %d.\n", val);
560 if (cmd == PISCSI_CMD_WRITE) {
561 DEBUG("[PISCSI-%d] %d byte WRITE to block %d from address %.8X\n", val, piscsi_u32[1], piscsi_u32[0], piscsi_u32[2]);
562 d->lba = piscsi_u32[0];
563 lseek(d->fd, (piscsi_u32[0] * 512), SEEK_SET);
566 uint64_t src = piscsi_u32[3];
567 src = (src << 32) | piscsi_u32[0];
568 DEBUG("[PISCSI-%d] %d byte WRITE64 to block %lld from address %.8X\n", val, piscsi_u32[1], (src / 512), piscsi_u32[2]);
569 d->lba = (src / 512);
570 lseek64(d->fd, src, SEEK_SET);
573 r = get_mapped_item_by_address(cfg, piscsi_u32[2]);
575 DEBUG_TRIVIAL("[PISCSI-%d] \"DMA\" Write comes from mapped range %d.\n", val, r);
576 write(d->fd, cfg->map_data[r] + piscsi_u32[2] - cfg->map_offset[r], piscsi_u32[1]);
579 DEBUG_TRIVIAL("[PISCSI-%d] No mapped range found for write.\n", val);
581 for (uint32_t i = 0; i < piscsi_u32[1]; i++) {
582 c = read8(piscsi_u32[2] + i);
587 case PISCSI_CMD_ADDR1: case PISCSI_CMD_ADDR2: case PISCSI_CMD_ADDR3: case PISCSI_CMD_ADDR4: {
588 int i = ((addr & 0xFFFF) - PISCSI_CMD_ADDR1) / 4;
592 case PISCSI_CMD_DRVNUM:
593 //printf("%d ", val);
595 piscsi_cur_drive = 255;
597 piscsi_cur_drive = val / 10;
598 if (piscsi_cur_drive > NUM_UNITS)
599 piscsi_cur_drive = 255;
601 if (piscsi_cur_drive != 255) {
602 DEBUG("[PISCSI] (%s) Drive number set to %d (%d)\n", op_type_names[type], piscsi_cur_drive, val);
605 case PISCSI_CMD_DEBUGME:
608 case PISCSI_CMD_DRIVER: {
609 DEBUG("[PISCSI] Driver copy/patch called, destination address %.8X.\n", val);
610 int r = get_mapped_item_by_address(cfg, val);
612 uint32_t addr = val - cfg->map_offset[r];
613 uint8_t *dst_data = cfg->map_data[r];
614 uint8_t cur_partition = 0;
615 memcpy(dst_data + addr, piscsi_rom_ptr + PISCSI_DRIVER_OFFSET, 0x4000 - PISCSI_DRIVER_OFFSET);
617 piscsi_hinfo.base_offset = val;
619 reloc_hunks(piscsi_hreloc, dst_data + addr, &piscsi_hinfo);
621 #define PUTNODELONG(val) *(uint32_t *)&dst_data[p_offs] = htobe32(val); p_offs += 4;
622 #define PUTNODELONGBE(val) *(uint32_t *)&dst_data[p_offs] = val; p_offs += 4;
624 for (int i = 0; i < 128; i++) {
625 rom_partitions[i] = 0;
626 rom_partition_prio[i] = 0;
627 rom_partition_dostype[i] = 0;
629 rom_cur_partition = 0;
631 uint32_t data_addr = addr + 0x3F00;
632 sprintf((char *)dst_data + data_addr, "pi-scsi.device");
633 uint32_t addr2 = addr + 0x4000;
634 for (int i = 0; i < NUM_UNITS; i++) {
635 if (devs[i].fd != -1)
636 piscsi_find_partitions(&devs[i]);
640 if (devs[i].num_partitions) {
641 uint32_t p_offs = addr2;
642 DEBUG("[PISCSI] Adding %d partitions for unit %d\n", devs[i].num_partitions, i);
643 for (uint32_t j = 0; j < devs[i].num_partitions; j++) {
644 DEBUG("Partition %d: %s\n", j, devs[i].pb[j]->pb_DriveName + 1);
645 sprintf((char *)dst_data + p_offs, "%s", devs[i].pb[j]->pb_DriveName + 1);
647 PUTNODELONG(addr2 + cfg->map_offset[r]);
648 PUTNODELONG(data_addr + cfg->map_offset[r]);
649 PUTNODELONG((i * 10));
651 uint32_t nodesize = (be32toh(devs[i].pb[j]->pb_Environment[0]) + 1) * 4;
652 memcpy(dst_data + p_offs, devs[i].pb[j]->pb_Environment, nodesize);
654 struct pihd_dosnode_data *dat = (struct pihd_dosnode_data *)(&dst_data[addr2+0x20]);
656 if (BE(devs[i].pb[j]->pb_Flags) & 0x01) {
657 DEBUG("Partition is bootable.\n");
658 rom_partition_prio[cur_partition] = 0;
662 DEBUG("Partition is not bootable.\n");
663 rom_partition_prio[cur_partition] = -128;
664 dat->priority = htobe32(-128);
667 DEBUG("DOSNode Data:\n");
668 DEBUG("Name: %s Device: %s\n", dst_data + addr2, dst_data + data_addr);
669 DEBUG("Unit: %d Flags: %d Pad1: %d\n", BE(dat->unit), BE(dat->flags), BE(dat->pad1));
670 DEBUG("Node len: %d Block len: %d\n", BE(dat->node_len) * 4, BE(dat->block_len) * 4);
671 DEBUG("H: %d SPB: %d BPS: %d\n", BE(dat->surf), BE(dat->secs_per_block), BE(dat->blocks_per_track));
672 DEBUG("Reserved: %d Prealloc: %d\n", BE(dat->reserved_blocks), BE(dat->pad2));
673 DEBUG("Interleaved: %d Buffers: %d Memtype: %d\n", BE(dat->interleave), BE(dat->buffers), BE(dat->mem_type));
674 DEBUG("Lowcyl: %d Highcyl: %d Prio: %d\n", BE(dat->lowcyl), BE(dat->highcyl), BE(dat->priority));
675 DEBUG("Maxtransfer: %.8X Mask: %.8X\n", BE(dat->maxtransfer), BE(dat->transfer_mask));
676 DEBUG("DOSType: %.8X\n", BE(dat->dostype));
678 rom_partitions[cur_partition] = addr2 + 0x20 + cfg->map_offset[r];
679 rom_partition_dostype[cur_partition] = dat->dostype;
691 case PISCSI_CMD_NEXTPART:
692 DEBUG("[PISCSI] Switch partition %d -> %d\n", rom_cur_partition, rom_cur_partition + 1);
695 case PISCSI_CMD_NEXTFS:
696 DEBUG("[PISCSI] Switch file file system %d -> %d\n", rom_cur_fs, rom_cur_fs + 1);
699 case PISCSI_CMD_COPYFS:
700 DEBUG("[PISCSI] Copy file system %d to %.8X and reloc.\n", rom_cur_fs, piscsi_u32[2]);
701 r = get_mapped_item_by_address(cfg, piscsi_u32[2]);
703 uint32_t addr = piscsi_u32[2] - cfg->map_offset[r];
704 memset(cfg->map_data[r] + addr, 0x00, filesystems[rom_cur_fs].h_info.alloc_size);
705 memcpy(cfg->map_data[r] + addr, filesystems[rom_cur_fs].binary_data, filesystems[rom_cur_fs].h_info.byte_size);
706 filesystems[rom_cur_fs].h_info.base_offset = piscsi_u32[2];
707 reloc_hunks(filesystems[rom_cur_fs].relocs, cfg->map_data[r] + addr, &filesystems[rom_cur_fs].h_info);
708 filesystems[rom_cur_fs].handler = piscsi_u32[2];
711 case PISCSI_CMD_SETFSH: {
713 DEBUG("[PISCSI] Set handler for partition %d (DeviceNode: %.8X)\n", rom_cur_partition, val);
714 r = get_mapped_item_by_address(cfg, val);
716 uint32_t addr = val - cfg->map_offset[r];
717 struct DeviceNode *node = (struct DeviceNode *)(cfg->map_data[r] + addr);
719 char *dosID = (char *)&rom_partition_dostype[rom_cur_partition];
721 DEBUG("[PISCSI] Partition DOSType is %c%c%c/%d\n", dosID[0], dosID[1], dosID[2], dosID[3]);
722 for (i = 0; i < piscsi_num_fs; i++) {
723 if (rom_partition_dostype[rom_cur_partition] == filesystems[i].FS_ID) {
724 node->dn_SegList = htobe32((filesystems[i].handler >> 2));
725 node->dn_GlobalVec = 0xFFFFFFFF;
729 DEBUG("[!!!PISCSI] Found no handler for file system!\n");
731 DEBUG("[FS-HANDLER] Next: %d Type: %.8X\n", BE(node->dn_Next), BE(node->dn_Type));
732 DEBUG("[FS-HANDLER] Task: %d Lock: %d\n", BE(node->dn_Task), BE(node->dn_Lock));
733 DEBUG("[FS-HANDLER] Handler: %d Stacksize: %d\n", BE((uint32_t)node->dn_Handler), BE(node->dn_StackSize));
734 DEBUG("[FS-HANDLER] Priority: %d Startup: %d\n", BE((uint32_t)node->dn_Priority), BE(node->dn_Startup));
735 DEBUG("[FS-HANDLER] SegList: %.8X GlobalVec: %d\n", BE((uint32_t)node->dn_SegList), BE(node->dn_GlobalVec));
736 DEBUG("[PISCSI] Handler for partition %.8X set to %.8X (%.8X).\n", BE((uint32_t)node->dn_Name), filesystems[i].FS_ID, filesystems[i].handler);
740 case PISCSI_DBG_VAL1: case PISCSI_DBG_VAL2: case PISCSI_DBG_VAL3: case PISCSI_DBG_VAL4:
741 case PISCSI_DBG_VAL5: case PISCSI_DBG_VAL6: case PISCSI_DBG_VAL7: case PISCSI_DBG_VAL8: {
742 int i = ((addr & 0xFFFF) - PISCSI_DBG_VAL1) / 4;
747 print_piscsi_debug_message(val);
750 DEBUG("[!!!PISCSI] WARN: Unhandled %s register write to %.8X: %d\n", op_type_names[type], addr, val);
757 uint32_t handle_piscsi_read(uint32_t addr, uint8_t type) {
760 if ((addr & 0xFFFF) >= PISCSI_CMD_ROM) {
761 uint32_t romoffs = (addr & 0xFFFF) - PISCSI_CMD_ROM;
762 if (romoffs < (piscsi_rom_size + PIB)) {
763 //DEBUG("[PISCSI] %s read from Boot ROM @$%.4X (%.8X): ", op_type_names[type], romoffs, addr);
767 v = piscsi_rom_ptr[romoffs - PIB];
768 //DEBUG("%.2X\n", v);
771 v = be16toh(*((uint16_t *)&piscsi_rom_ptr[romoffs - PIB]));
772 //DEBUG("%.4X\n", v);
774 case OP_TYPE_LONGWORD:
775 v = be32toh(*((uint32_t *)&piscsi_rom_ptr[romoffs - PIB]));
776 //DEBUG("%.8X\n", v);
784 switch (addr & 0xFFFF) {
785 case PISCSI_CMD_ADDR1: case PISCSI_CMD_ADDR2: case PISCSI_CMD_ADDR3: case PISCSI_CMD_ADDR4: {
786 int i = ((addr & 0xFFFF) - PISCSI_CMD_ADDR1) / 4;
787 return piscsi_u32[i];
790 case PISCSI_CMD_DRVTYPE:
791 if (devs[piscsi_cur_drive].fd == -1) {
792 DEBUG("[PISCSI] %s Read from DRVTYPE %d, drive not attached.\n", op_type_names[type], piscsi_cur_drive);
795 DEBUG("[PISCSI] %s Read from DRVTYPE %d, drive attached.\n", op_type_names[type], piscsi_cur_drive);
798 case PISCSI_CMD_DRVNUM:
799 return piscsi_cur_drive;
801 case PISCSI_CMD_CYLS:
802 DEBUG("[PISCSI] %s Read from CYLS %d: %d\n", op_type_names[type], piscsi_cur_drive, devs[piscsi_cur_drive].c);
803 return devs[piscsi_cur_drive].c;
805 case PISCSI_CMD_HEADS:
806 DEBUG("[PISCSI] %s Read from HEADS %d: %d\n", op_type_names[type], piscsi_cur_drive, devs[piscsi_cur_drive].h);
807 return devs[piscsi_cur_drive].h;
809 case PISCSI_CMD_SECS:
810 DEBUG("[PISCSI] %s Read from SECS %d: %d\n", op_type_names[type], piscsi_cur_drive, devs[piscsi_cur_drive].s);
811 return devs[piscsi_cur_drive].s;
813 case PISCSI_CMD_BLOCKS: {
814 uint32_t blox = devs[piscsi_cur_drive].fs / 512;
815 DEBUG("[PISCSI] %s Read from BLOCKS %d: %d\n", op_type_names[type], piscsi_cur_drive, (uint32_t)(devs[piscsi_cur_drive].fs / 512));
816 DEBUG("fs: %lld (%d)\n", devs[piscsi_cur_drive].fs, blox);
820 case PISCSI_CMD_GETPART: {
821 DEBUG("[PISCSI] Get ROM partition %d offset: %.8X\n", rom_cur_partition, rom_partitions[rom_cur_partition]);
822 return rom_partitions[rom_cur_partition];
825 case PISCSI_CMD_GETPRIO:
826 DEBUG("[PISCSI] Get partition %d boot priority: %d\n", rom_cur_partition, rom_partition_prio[rom_cur_partition]);
827 return rom_partition_prio[rom_cur_partition];
829 case PISCSI_CMD_CHECKFS:
830 DEBUG("[PISCSI] Get current loaded file system: %.8X\n", filesystems[rom_cur_fs].FS_ID);
831 return filesystems[rom_cur_fs].FS_ID;
832 case PISCSI_CMD_FSSIZE:
833 DEBUG("[PISCSI] Get alloc size of loaded file system: %d\n", filesystems[rom_cur_fs].h_info.alloc_size);
834 return filesystems[rom_cur_fs].h_info.alloc_size;
836 DEBUG("[!!!PISCSI] WARN: Unhandled %s register read from %.8X\n", op_type_names[type], addr);