9 #include "config_file/config_file.h"
10 #include "gpio/ps_protocol.h"
11 #include "piscsi-enums.h"
13 #include "platforms/amiga/hunk-reloc.h"
15 #define BE(val) be32toh(val)
16 #define BE16(val) be16toh(val)
18 // Uncomment the line below to enable debug output
19 //#define PISCSI_DEBUG
23 //#define DEBUG_TRIVIAL printf
24 #define DEBUG_TRVIAL(...)
26 extern void stop_cpu_emulation(uint8_t disasm_cur);
28 static const char *op_type_names[4] = {
36 #define DEBUG_TRIVIAL(...)
37 #define stop_cpu_emulation(...)
44 extern struct emulator_config *cfg;
46 struct piscsi_dev devs[8];
47 struct piscsi_fs filesystems[NUM_FILESYSTEMS];
49 uint8_t piscsi_num_fs = 0;
51 uint8_t piscsi_cur_drive = 0;
52 uint32_t piscsi_u32[4];
53 uint32_t piscsi_dbg[8];
54 uint32_t piscsi_rom_size = 0;
55 uint8_t *piscsi_rom_ptr;
57 uint32_t rom_partitions[128];
58 uint32_t rom_partition_prio[128];
59 uint32_t rom_partition_dostype[128];
60 uint32_t rom_cur_partition = 0, rom_cur_fs = 0;
62 extern unsigned char ac_piscsi_rom[];
64 //static const char *partition_marker = "PART";
66 struct hunk_info piscsi_hinfo;
67 struct hunk_reloc piscsi_hreloc[256];
70 for (int i = 0; i < 8; i++) {
73 devs[i].c = devs[i].h = devs[i].s = 0;
76 FILE *in = fopen("./platforms/amiga/piscsi/piscsi.rom", "rb");
78 printf("[PISCSI] Could not open PISCSI Boot ROM file for reading!\n");
79 // Zero out the boot ROM offset from the autoconfig ROM.
80 ac_piscsi_rom[20] = 0;
81 ac_piscsi_rom[21] = 0;
82 ac_piscsi_rom[22] = 0;
83 ac_piscsi_rom[23] = 0;
86 fseek(in, 0, SEEK_END);
87 piscsi_rom_size = ftell(in);
88 fseek(in, 0, SEEK_SET);
89 piscsi_rom_ptr = malloc(piscsi_rom_size);
90 fread(piscsi_rom_ptr, piscsi_rom_size, 1, in);
92 fseek(in, PISCSI_DRIVER_OFFSET, SEEK_SET);
93 process_hunks(in, &piscsi_hinfo, piscsi_hreloc, PISCSI_DRIVER_OFFSET);
96 printf("[PISCSI] Loaded Boot ROM.\n");
99 void piscsi_find_partitions(struct piscsi_dev *d) {
101 int cur_partition = 0;
104 for (int i = 0; i < 16; i++) {
111 if (!d->rdb || d->rdb->rdb_PartitionList == 0) {
112 DEBUG("[PISCSI] No partitions on disk.\n");
116 char *block = malloc(512);
118 lseek(fd, BE(d->rdb->rdb_PartitionList) * 512, SEEK_SET);
120 read(fd, block, 512);
122 uint32_t first = be32toh(*((uint32_t *)&block[0]));
123 if (first != PART_IDENTIFIER) {
124 DEBUG("Entry at block %d is not a valid partition. Aborting.\n", BE(d->rdb->rdb_PartitionList));
128 struct PartitionBlock *pb = (struct PartitionBlock *)block;
129 tmp = pb->pb_DriveName[0];
130 pb->pb_DriveName[tmp + 1] = 0x00;
131 DEBUG("[PISCSI] Partition %d: %s\n", cur_partition, pb->pb_DriveName + 1);
132 DEBUG("Checksum: %.8X HostID: %d\n", BE(pb->pb_ChkSum), BE(pb->pb_HostID));
133 DEBUG("Flags: %d (%.8X) Devflags: %d (%.8X)\n", BE(pb->pb_Flags), BE(pb->pb_Flags), BE(pb->pb_DevFlags), BE(pb->pb_DevFlags));
134 d->pb[cur_partition] = pb;
136 if (d->pb[cur_partition]->pb_Next != 0xFFFFFFFF) {
137 uint64_t next = be32toh(pb->pb_Next);
139 lseek64(fd, next * 512, SEEK_SET);
141 DEBUG("[PISCSI] Next partition at block %d.\n", be32toh(pb->pb_Next));
144 DEBUG("[PISCSI] No more partitions on disk.\n");
145 d->num_partitions = cur_partition + 1;
146 d->fshd_offs = lseek64(fd, 0, SEEK_CUR);
151 int piscsi_parse_rdb(struct piscsi_dev *d) {
154 uint8_t *block = malloc(512);
156 lseek(fd, 0, SEEK_SET);
157 for (i = 0; i < RDB_BLOCK_LIMIT; i++) {
158 read(fd, block, 512);
159 uint32_t first = be32toh(*((uint32_t *)&block[0]));
160 if (first == RDB_IDENTIFIER)
165 struct RigidDiskBlock *rdb = (struct RigidDiskBlock *)block;
166 DEBUG("[PISCSI] RDB found at block %d.\n", i);
167 d->c = be32toh(rdb->rdb_Cylinders);
168 d->h = be32toh(rdb->rdb_Heads);
169 d->s = be32toh(rdb->rdb_Sectors);
170 d->num_partitions = 0;
171 DEBUG("[PISCSI] RDB - first partition at block %d.\n", be32toh(rdb->rdb_PartitionList));
175 sprintf(d->rdb->rdb_DriveInitName, "pi-scsi.device");
185 void piscsi_refresh_drives() {
188 for (int i = 0; i < NUM_FILESYSTEMS; i++) {
189 if (filesystems[i].binary_data) {
190 free(filesystems[i].binary_data);
191 filesystems[i].binary_data = NULL;
193 if (filesystems[i].fhb) {
194 free(filesystems[i].fhb);
195 filesystems[i].fhb = NULL;
197 filesystems[i].h_info.current_hunk = 0;
198 filesystems[i].h_info.reloc_hunks = 0;
199 filesystems[i].FS_ID = 0;
200 filesystems[i].handler = 0;
205 for (int i = 0; i < NUM_UNITS; i++) {
206 if (devs[i].fd != -1) {
207 piscsi_parse_rdb(&devs[i]);
208 piscsi_find_partitions(&devs[i]);
209 piscsi_find_filesystems(&devs[i]);
214 void piscsi_find_filesystems(struct piscsi_dev *d) {
215 if (!d->num_partitions)
218 uint8_t fs_found = 0;
220 uint8_t *fhb_block = malloc(512);
222 lseek64(d->fd, d->fshd_offs, SEEK_SET);
224 struct FileSysHeaderBlock *fhb = (struct FileSysHeaderBlock *)fhb_block;
225 read(d->fd, fhb_block, 512);
227 while (BE(fhb->fhb_ID) == FS_IDENTIFIER) {
228 char *dosID = (char *)&fhb->fhb_DosType;
230 uint16_t *fsVer = (uint16_t *)&fhb->fhb_Version;
232 DEBUG("[FSHD] FSHD Block found.\n");
233 DEBUG("[FSHD] HostID: %d Next: %d Size: %d\n", BE(fhb->fhb_HostID), BE(fhb->fhb_Next), BE(fhb->fhb_SummedLongs));
234 DEBUG("[FSHD] Flags: %.8X DOSType: %c%c%c/%d\n", BE(fhb->fhb_Flags), dosID[0], dosID[1], dosID[2], dosID[3]);
235 DEBUG("[FSHD] Version: %d.%d\n", BE16(fsVer[0]), BE16(fsVer[1]));
236 DEBUG("[FSHD] Patchflags: %d Type: %d\n", BE(fhb->fhb_PatchFlags), BE(fhb->fhb_Type));
237 DEBUG("[FSHD] Task: %d Lock: %d\n", BE(fhb->fhb_Task), BE(fhb->fhb_Lock));
238 DEBUG("[FSHD] Handler: %d StackSize: %d\n", BE(fhb->fhb_Handler), BE(fhb->fhb_StackSize));
239 DEBUG("[FSHD] Prio: %d Startup: %d\n", BE(fhb->fhb_Priority), BE(fhb->fhb_Startup));
240 DEBUG("[FSHD] SegListBlocks: %d GlobalVec: %d\n", BE(fhb->fhb_Priority), BE(fhb->fhb_Startup));
241 DEBUG("[FSHD] FileSysName: %s\n", fhb->fhb_FileSysName + 1);
244 for (int i = 0; i < NUM_FILESYSTEMS; i++) {
245 if (filesystems[i].FS_ID == fhb->fhb_DosType) {
246 DEBUG("[FSHD] File system %c%c%c/%d already loaded. Skipping.\n", dosID[0], dosID[1], dosID[2], dosID[3]);
247 if (BE(fhb->fhb_Next) == 0xFFFFFFFF)
250 goto skip_fs_load_lseg;
254 if (load_lseg(d->fd, &filesystems[piscsi_num_fs].binary_data, &filesystems[piscsi_num_fs].h_info, filesystems[piscsi_num_fs].relocs) != -1) {
255 filesystems[piscsi_num_fs].FS_ID = fhb->fhb_DosType;
256 filesystems[piscsi_num_fs].fhb = fhb;
257 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]);
263 lseek64(d->fd, BE(fhb->fhb_Next) * 512, SEEK_SET);
264 fhb_block = malloc(512);
265 fhb = (struct FileSysHeaderBlock *)fhb_block;
266 read(d->fd, fhb_block, 512);
270 DEBUG("[!!!FSHD] No file systems found on hard drive!\n");
278 void piscsi_map_drive(char *filename, uint8_t index) {
280 printf("[PISCSI] Drive index %d out of range.\nUnable to map file %s to drive.\n", index, filename);
284 int32_t tmp_fd = open(filename, O_RDWR);
286 printf("[PISCSI] Failed to open file %s, could not map drive %d.\n", filename, index);
290 struct piscsi_dev *d = &devs[index];
292 uint64_t file_size = lseek(tmp_fd, 0, SEEK_END);
295 lseek(tmp_fd, 0, SEEK_SET);
296 printf("[PISCSI] Map %d: [%s] - %llu bytes.\n", index, filename, file_size);
298 if (piscsi_parse_rdb(d) == -1) {
299 DEBUG("[PISCSI] No RDB found on disk, making up some CHS values.\n");
302 d->c = (file_size / 512) / (d->s * d->h);
304 printf("[PISCSI] CHS: %d %d %d\n", d->c, d->h, d->s);
306 piscsi_find_partitions(d);
307 piscsi_find_filesystems(d);
310 void piscsi_unmap_drive(uint8_t index) {
311 if (devs[index].fd != -1) {
312 DEBUG("[PISCSI] Unmapped drive %d.\n", index);
313 close (devs[index].fd);
318 char *io_cmd_name(int index) {
320 case CMD_INVALID: return "INVALID";
321 case CMD_RESET: return "RESET";
322 case CMD_READ: return "READ";
323 case CMD_WRITE: return "WRITE";
324 case CMD_UPDATE: return "UPDATE";
325 case CMD_CLEAR: return "CLEAR";
326 case CMD_STOP: return "STOP";
327 case CMD_START: return "START";
328 case CMD_FLUSH: return "FLUSH";
329 case TD_MOTOR: return "TD_MOTOR";
330 case TD_SEEK: return "SEEK";
331 case TD_FORMAT: return "FORMAT";
332 case TD_REMOVE: return "REMOVE";
333 case TD_CHANGENUM: return "CHANGENUM";
334 case TD_CHANGESTATE: return "CHANGESTATE";
335 case TD_PROTSTATUS: return "PROTSTATUS";
336 case TD_RAWREAD: return "RAWREAD";
337 case TD_RAWWRITE: return "RAWWRITE";
338 case TD_GETDRIVETYPE: return "GETDRIVETYPE";
339 case TD_GETNUMTRACKS: return "GETNUMTRACKS";
340 case TD_ADDCHANGEINT: return "ADDCHANGEINT";
341 case TD_REMCHANGEINT: return "REMCHANGEINT";
342 case TD_GETGEOMETRY: return "GETGEOMETRY";
343 case TD_EJECT: return "EJECT";
344 case TD_LASTCOMM: return "LASTCOMM/READ64";
345 case TD_WRITE64: return "WRITE64";
346 case HD_SCSICMD: return "HD_SCSICMD";
347 case NSCMD_DEVICEQUERY: return "NSCMD_DEVICEQUERY";
348 case NSCMD_TD_READ64: return "NSCMD_TD_READ64";
349 case NSCMD_TD_WRITE64: return "NSCMD_TD_WRITE64";
350 case NSCMD_TD_FORMAT64: return "NSCMD_TD_FORMAT64";
353 return "[!!!PISCSI] Unhandled IO command";
357 #define GETSCSINAME(a) case a: return ""#a"";
358 #define SCSIUNHANDLED(a) return "[!!!PISCSI] Unhandled SCSI command "#a"";
360 char *scsi_cmd_name(int index) {
362 GETSCSINAME(SCSICMD_TEST_UNIT_READY);
363 GETSCSINAME(SCSICMD_INQUIRY);
364 GETSCSINAME(SCSICMD_READ_6);
365 GETSCSINAME(SCSICMD_WRITE_6);
366 GETSCSINAME(SCSICMD_READ_10);
367 GETSCSINAME(SCSICMD_WRITE_10);
368 GETSCSINAME(SCSICMD_READ_CAPACITY_10);
369 GETSCSINAME(SCSICMD_MODE_SENSE_6);
370 GETSCSINAME(SCSICMD_READ_DEFECT_DATA_10);
372 return "[!!!PISCSI] Unhandled SCSI command";
376 void print_piscsi_debug_message(int index) {
381 DEBUG("[PISCSI] Initializing devices.\n");
384 if (piscsi_dbg[0] != 255) {
385 DEBUG("[PISCSI] Opening device %d (%d). Flags: %d (%.2X)\n", piscsi_dbg[0], piscsi_dbg[2], piscsi_dbg[1], piscsi_dbg[1]);
389 DEBUG("[PISCSI] Cleaning up.\n");
392 DEBUG("[PISCSI] C/H/S: %d / %d / %d\n", piscsi_dbg[0], piscsi_dbg[1], piscsi_dbg[2]);
395 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]);
398 DEBUG("[PISCSI] AbortIO!\n");
401 DEBUG("[PISCSI] SCSI Command %d (%s)\n", piscsi_dbg[1], scsi_cmd_name(piscsi_dbg[1]));
402 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]);
404 case DBG_SCSI_UNKNOWN_MODESENSE:
405 DEBUG("[!!!PISCSI] SCSI: Unknown modesense %.4X\n", piscsi_dbg[0]);
407 case DBG_SCSI_UNKNOWN_COMMAND:
408 DEBUG("[!!!PISCSI] SCSI: Unknown command %.4X\n", piscsi_dbg[0]);
411 DEBUG("[!!!PISCSI] SCSI: An error occured: %.4X\n", piscsi_dbg[0]);
414 DEBUG_TRIVIAL("[PISCSI] IO Command %d (%s)\n", piscsi_dbg[0], io_cmd_name(piscsi_dbg[0]));
416 case DBG_IOCMD_UNHANDLED:
417 DEBUG("[!!!PISCSI] WARN: IO command %.4X (%s) is unhandled by driver.\n", piscsi_dbg[0], io_cmd_name(piscsi_dbg[0]));
419 case DBG_SCSI_FORMATDEVICE:
420 DEBUG("[PISCSI] Get SCSI FormatDevice MODE SENSE.\n");
423 DEBUG("[PISCSI] Get SCSI RDG MODE SENSE.\n");
425 case DBG_SCSICMD_RW10:
427 r = get_mapped_item_by_address(cfg, piscsi_dbg[0]);
428 struct SCSICmd_RW10 *rwdat = NULL;
431 uint32_t addr = piscsi_dbg[0] - cfg->map_offset[r];
432 rwdat = (struct SCSICmd_RW10 *)(&cfg->map_data[r][addr]);
435 DEBUG_TRIVIAL("[RW10] scsiData: %.8X\n", piscsi_dbg[0]);
436 for (int i = 0; i < 10; i++) {
437 data[i] = read8(piscsi_dbg[0] + i);
442 DEBUG_TRIVIAL("[RW10] CMD: %.2X\n", rwdat->opcode);
443 DEBUG_TRIVIAL("[RW10] RDP: %.2X\n", rwdat->rdprotect_flags);
444 DEBUG_TRIVIAL("[RW10] Block: %d (%d)\n", rwdat->block, BE(rwdat->block));
445 DEBUG_TRIVIAL("[RW10] Res_Group: %.2X\n", rwdat->res_groupnum);
446 DEBUG_TRIVIAL("[RW10] Len: %d (%d)\n", rwdat->len, BE16(rwdat->len));
450 case DBG_SCSI_DEBUG_MODESENSE_6:
451 DEBUG_TRIVIAL("[PISCSI] SCSI ModeSense debug. Data: %.8X\n", piscsi_dbg[0]);
452 r = get_mapped_item_by_address(cfg, piscsi_dbg[0]);
455 uint32_t addr = piscsi_dbg[0] - cfg->map_offset[r];
456 struct SCSICmd_ModeSense6 *sense = (struct SCSICmd_ModeSense6 *)(&cfg->map_data[r][addr]);
457 DEBUG_TRIVIAL("[SenseData] CMD: %.2X\n", sense->opcode);
458 DEBUG_TRIVIAL("[SenseData] DBD: %d\n", sense->reserved_dbd & 0x04);
459 DEBUG_TRIVIAL("[SenseData] PC: %d\n", (sense->pc_pagecode & 0xC0 >> 6));
460 DEBUG_TRIVIAL("[SenseData] PageCodes: %.2X %.2X\n", (sense->pc_pagecode & 0x3F), sense->subpage_code);
461 DEBUG_TRIVIAL("[SenseData] AllocLen: %d\n", sense->alloc_len);
462 DEBUG_TRIVIAL("[SenseData] Control: %.2X (%d)\n", sense->control, sense->control);
466 DEBUG("[!!!PISCSI] ModeSense data not immediately available.\n");
470 DEBUG("[!!!PISCSI] No debug message available for index %d.\n", index);
475 #define DEBUGME_SIMPLE(i, s) case i: DEBUG(s); break;
477 void piscsi_debugme(uint32_t index) {
479 DEBUGME_SIMPLE(1, "[PISCSI-DEBUGME] Arrived at DiagEntry.\n");
480 DEBUGME_SIMPLE(3, "[PISCSI-DEBUGME] Init: Interrupt disable.\n");
481 DEBUGME_SIMPLE(4, "[PISCSI-DEBUGME] Init: Copy/reloc driver.\n");
482 DEBUGME_SIMPLE(5, "[PISCSI-DEBUGME] Init: InitResident.\n");
483 DEBUGME_SIMPLE(7, "[PISCSI-DEBUGME] Init: Begin partition loop.\n");
484 DEBUGME_SIMPLE(8, "[PISCSI-DEBUGME] Init: Partition loop done. Cleaning up and returning to Exec.\n");
485 DEBUGME_SIMPLE(9, "[PISCSI-DEBUGME] Init: Load file systems.\n");
486 DEBUGME_SIMPLE(10, "[PISCSI-DEBUGME] Init: AllocMem for resident.\n");
487 DEBUGME_SIMPLE(11, "[PISCSI-DEBUGME] Init: Checking if resident is loaded.\n");
488 DEBUGME_SIMPLE(22, "[PISCSI-DEBUGME] Arrived at BootEntry.\n");
489 DEBUGME_SIMPLE(30, "[PISCSI-DEBUGME] LoadFileSystems: Opening FileSystem.resource.\n");
490 DEBUGME_SIMPLE(33, "[PISCSI-DEBUGME] FileSystem.resource not available, creating.\n");
492 DEBUG("[PISCSI-DEBUGME] OpenResource result: %d\n", piscsi_u32[0]);
498 DEBUG("[!!!PISCSI-DEBUGME] No debugme message for index %d!\n", index);
503 stop_cpu_emulation(1);
507 void handle_piscsi_write(uint32_t addr, uint32_t val, uint8_t type) {
513 struct piscsi_dev *d = &devs[piscsi_cur_drive];
515 uint16_t cmd = (addr & 0xFFFF);
518 case PISCSI_CMD_READ64:
519 case PISCSI_CMD_READ:
522 DEBUG("[!!!PISCSI] BUG: Attempted read from unmapped drive %d.\n", val);
526 if (cmd == PISCSI_CMD_READ) {
527 DEBUG("[PISCSI-%d] %d byte READ from block %d to address %.8X\n", val, piscsi_u32[1], piscsi_u32[0], piscsi_u32[2]);
528 d->lba = piscsi_u32[0];
529 lseek(d->fd, (piscsi_u32[0] * 512), SEEK_SET);
532 uint64_t src = piscsi_u32[3];
533 src = (src << 32) | piscsi_u32[0];
534 DEBUG("[PISCSI-%d] %d byte READ64 from block %lld to address %.8X\n", val, piscsi_u32[1], (src / 512), piscsi_u32[2]);
535 d->lba = (src / 512);
536 lseek64(d->fd, src, SEEK_SET);
539 r = get_mapped_item_by_address(cfg, piscsi_u32[2]);
540 if (r != -1 && cfg->map_type[r] == MAPTYPE_RAM) {
541 DEBUG_TRIVIAL("[PISCSI-%d] \"DMA\" Read goes to mapped range %d.\n", val, r);
542 read(d->fd, cfg->map_data[r] + piscsi_u32[2] - cfg->map_offset[r], piscsi_u32[1]);
545 DEBUG_TRIVIAL("[PISCSI-%d] No mapped range found for read.\n", val);
547 for (uint32_t i = 0; i < piscsi_u32[1]; i++) {
549 write8(piscsi_u32[2] + i, (uint32_t)c);
553 case PISCSI_CMD_WRITE64:
554 case PISCSI_CMD_WRITE:
557 DEBUG ("[PISCSI] BUG: Attempted write to unmapped drive %d.\n", val);
561 if (cmd == PISCSI_CMD_WRITE) {
562 DEBUG("[PISCSI-%d] %d byte WRITE to block %d from address %.8X\n", val, piscsi_u32[1], piscsi_u32[0], piscsi_u32[2]);
563 d->lba = piscsi_u32[0];
564 lseek(d->fd, (piscsi_u32[0] * 512), SEEK_SET);
567 uint64_t src = piscsi_u32[3];
568 src = (src << 32) | piscsi_u32[0];
569 DEBUG("[PISCSI-%d] %d byte WRITE64 to block %lld from address %.8X\n", val, piscsi_u32[1], (src / 512), piscsi_u32[2]);
570 d->lba = (src / 512);
571 lseek64(d->fd, src, SEEK_SET);
574 r = get_mapped_item_by_address(cfg, piscsi_u32[2]);
576 DEBUG_TRIVIAL("[PISCSI-%d] \"DMA\" Write comes from mapped range %d.\n", val, r);
577 write(d->fd, cfg->map_data[r] + piscsi_u32[2] - cfg->map_offset[r], piscsi_u32[1]);
580 DEBUG_TRIVIAL("[PISCSI-%d] No mapped range found for write.\n", val);
582 for (uint32_t i = 0; i < piscsi_u32[1]; i++) {
583 c = read8(piscsi_u32[2] + i);
588 case PISCSI_CMD_ADDR1: case PISCSI_CMD_ADDR2: case PISCSI_CMD_ADDR3: case PISCSI_CMD_ADDR4: {
589 int i = ((addr & 0xFFFF) - PISCSI_CMD_ADDR1) / 4;
593 case PISCSI_CMD_DRVNUM:
594 //printf("%d ", val);
596 piscsi_cur_drive = 255;
598 piscsi_cur_drive = val / 10;
599 if (piscsi_cur_drive > NUM_UNITS)
600 piscsi_cur_drive = 255;
602 if (piscsi_cur_drive != 255) {
603 DEBUG("[PISCSI] (%s) Drive number set to %d (%d)\n", op_type_names[type], piscsi_cur_drive, val);
606 case PISCSI_CMD_DEBUGME:
609 case PISCSI_CMD_DRIVER: {
610 DEBUG("[PISCSI] Driver copy/patch called, destination address %.8X.\n", val);
611 int r = get_mapped_item_by_address(cfg, val);
613 uint32_t addr = val - cfg->map_offset[r];
614 uint8_t *dst_data = cfg->map_data[r];
615 uint8_t cur_partition = 0;
616 memcpy(dst_data + addr, piscsi_rom_ptr + PISCSI_DRIVER_OFFSET, 0x4000 - PISCSI_DRIVER_OFFSET);
618 piscsi_hinfo.base_offset = val;
620 reloc_hunks(piscsi_hreloc, dst_data + addr, &piscsi_hinfo);
622 #define PUTNODELONG(val) *(uint32_t *)&dst_data[p_offs] = htobe32(val); p_offs += 4;
623 #define PUTNODELONGBE(val) *(uint32_t *)&dst_data[p_offs] = val; p_offs += 4;
625 for (int i = 0; i < 128; i++) {
626 rom_partitions[i] = 0;
627 rom_partition_prio[i] = 0;
628 rom_partition_dostype[i] = 0;
630 rom_cur_partition = 0;
632 uint32_t data_addr = addr + 0x3F00;
633 sprintf((char *)dst_data + data_addr, "pi-scsi.device");
634 uint32_t addr2 = addr + 0x4000;
635 for (int i = 0; i < NUM_UNITS; i++) {
636 if (devs[i].fd != -1)
637 piscsi_find_partitions(&devs[i]);
641 if (devs[i].num_partitions) {
642 uint32_t p_offs = addr2;
643 DEBUG("[PISCSI] Adding %d partitions for unit %d\n", devs[i].num_partitions, i);
644 for (uint32_t j = 0; j < devs[i].num_partitions; j++) {
645 DEBUG("Partition %d: %s\n", j, devs[i].pb[j]->pb_DriveName + 1);
646 sprintf((char *)dst_data + p_offs, "%s", devs[i].pb[j]->pb_DriveName + 1);
648 PUTNODELONG(addr2 + cfg->map_offset[r]);
649 PUTNODELONG(data_addr + cfg->map_offset[r]);
650 PUTNODELONG((i * 10));
652 uint32_t nodesize = (be32toh(devs[i].pb[j]->pb_Environment[0]) + 1) * 4;
653 memcpy(dst_data + p_offs, devs[i].pb[j]->pb_Environment, nodesize);
655 struct pihd_dosnode_data *dat = (struct pihd_dosnode_data *)(&dst_data[addr2+0x20]);
657 if (BE(devs[i].pb[j]->pb_Flags) & 0x01) {
658 DEBUG("Partition is bootable.\n");
659 rom_partition_prio[cur_partition] = 0;
663 DEBUG("Partition is not bootable.\n");
664 rom_partition_prio[cur_partition] = -128;
665 dat->priority = htobe32(-128);
668 DEBUG("DOSNode Data:\n");
669 DEBUG("Name: %s Device: %s\n", dst_data + addr2, dst_data + data_addr);
670 DEBUG("Unit: %d Flags: %d Pad1: %d\n", BE(dat->unit), BE(dat->flags), BE(dat->pad1));
671 DEBUG("Node len: %d Block len: %d\n", BE(dat->node_len) * 4, BE(dat->block_len) * 4);
672 DEBUG("H: %d SPB: %d BPS: %d\n", BE(dat->surf), BE(dat->secs_per_block), BE(dat->blocks_per_track));
673 DEBUG("Reserved: %d Prealloc: %d\n", BE(dat->reserved_blocks), BE(dat->pad2));
674 DEBUG("Interleaved: %d Buffers: %d Memtype: %d\n", BE(dat->interleave), BE(dat->buffers), BE(dat->mem_type));
675 DEBUG("Lowcyl: %d Highcyl: %d Prio: %d\n", BE(dat->lowcyl), BE(dat->highcyl), BE(dat->priority));
676 DEBUG("Maxtransfer: %.8X Mask: %.8X\n", BE(dat->maxtransfer), BE(dat->transfer_mask));
677 DEBUG("DOSType: %.8X\n", BE(dat->dostype));
679 rom_partitions[cur_partition] = addr2 + 0x20 + cfg->map_offset[r];
680 rom_partition_dostype[cur_partition] = dat->dostype;
692 case PISCSI_CMD_NEXTPART:
693 DEBUG("[PISCSI] Switch partition %d -> %d\n", rom_cur_partition, rom_cur_partition + 1);
696 case PISCSI_CMD_NEXTFS:
697 DEBUG("[PISCSI] Switch file file system %d -> %d\n", rom_cur_fs, rom_cur_fs + 1);
700 case PISCSI_CMD_COPYFS:
701 DEBUG("[PISCSI] Copy file system %d to %.8X and reloc.\n", rom_cur_fs, piscsi_u32[2]);
702 r = get_mapped_item_by_address(cfg, piscsi_u32[2]);
704 uint32_t addr = piscsi_u32[2] - cfg->map_offset[r];
705 memset(cfg->map_data[r] + addr, 0x00, filesystems[rom_cur_fs].h_info.alloc_size);
706 memcpy(cfg->map_data[r] + addr, filesystems[rom_cur_fs].binary_data, filesystems[rom_cur_fs].h_info.byte_size);
707 filesystems[rom_cur_fs].h_info.base_offset = piscsi_u32[2];
708 reloc_hunks(filesystems[rom_cur_fs].relocs, cfg->map_data[r] + addr, &filesystems[rom_cur_fs].h_info);
709 filesystems[rom_cur_fs].handler = piscsi_u32[2];
712 case PISCSI_CMD_SETFSH: {
714 DEBUG("[PISCSI] Set handler for partition %d (DeviceNode: %.8X)\n", rom_cur_partition, val);
715 r = get_mapped_item_by_address(cfg, val);
717 uint32_t addr = val - cfg->map_offset[r];
718 struct DeviceNode *node = (struct DeviceNode *)(cfg->map_data[r] + addr);
720 char *dosID = (char *)&rom_partition_dostype[rom_cur_partition];
722 DEBUG("[PISCSI] Partition DOSType is %c%c%c/%d\n", dosID[0], dosID[1], dosID[2], dosID[3]);
723 for (i = 0; i < piscsi_num_fs; i++) {
724 if (rom_partition_dostype[rom_cur_partition] == filesystems[i].FS_ID) {
725 node->dn_SegList = htobe32((filesystems[i].handler >> 2));
726 node->dn_GlobalVec = 0xFFFFFFFF;
730 DEBUG("[!!!PISCSI] Found no handler for file system!\n");
732 DEBUG("[FS-HANDLER] Next: %d Type: %.8X\n", BE(node->dn_Next), BE(node->dn_Type));
733 DEBUG("[FS-HANDLER] Task: %d Lock: %d\n", BE(node->dn_Task), BE(node->dn_Lock));
734 DEBUG("[FS-HANDLER] Handler: %d Stacksize: %d\n", BE((uint32_t)node->dn_Handler), BE(node->dn_StackSize));
735 DEBUG("[FS-HANDLER] Priority: %d Startup: %d\n", BE((uint32_t)node->dn_Priority), BE(node->dn_Startup));
736 DEBUG("[FS-HANDLER] SegList: %.8X GlobalVec: %d\n", BE((uint32_t)node->dn_SegList), BE(node->dn_GlobalVec));
737 DEBUG("[PISCSI] Handler for partition %.8X set to %.8X (%.8X).\n", BE((uint32_t)node->dn_Name), filesystems[i].FS_ID, filesystems[i].handler);
741 case PISCSI_DBG_VAL1: case PISCSI_DBG_VAL2: case PISCSI_DBG_VAL3: case PISCSI_DBG_VAL4:
742 case PISCSI_DBG_VAL5: case PISCSI_DBG_VAL6: case PISCSI_DBG_VAL7: case PISCSI_DBG_VAL8: {
743 int i = ((addr & 0xFFFF) - PISCSI_DBG_VAL1) / 4;
748 print_piscsi_debug_message(val);
751 DEBUG("[!!!PISCSI] WARN: Unhandled %s register write to %.8X: %d\n", op_type_names[type], addr, val);
758 uint32_t handle_piscsi_read(uint32_t addr, uint8_t type) {
761 if ((addr & 0xFFFF) >= PISCSI_CMD_ROM) {
762 uint32_t romoffs = (addr & 0xFFFF) - PISCSI_CMD_ROM;
763 if (romoffs < (piscsi_rom_size + PIB)) {
764 //DEBUG("[PISCSI] %s read from Boot ROM @$%.4X (%.8X): ", op_type_names[type], romoffs, addr);
768 v = piscsi_rom_ptr[romoffs - PIB];
769 //DEBUG("%.2X\n", v);
772 v = be16toh(*((uint16_t *)&piscsi_rom_ptr[romoffs - PIB]));
773 //DEBUG("%.4X\n", v);
775 case OP_TYPE_LONGWORD:
776 v = be32toh(*((uint32_t *)&piscsi_rom_ptr[romoffs - PIB]));
777 //DEBUG("%.8X\n", v);
785 switch (addr & 0xFFFF) {
786 case PISCSI_CMD_ADDR1: case PISCSI_CMD_ADDR2: case PISCSI_CMD_ADDR3: case PISCSI_CMD_ADDR4: {
787 int i = ((addr & 0xFFFF) - PISCSI_CMD_ADDR1) / 4;
788 return piscsi_u32[i];
791 case PISCSI_CMD_DRVTYPE:
792 if (devs[piscsi_cur_drive].fd == -1) {
793 DEBUG("[PISCSI] %s Read from DRVTYPE %d, drive not attached.\n", op_type_names[type], piscsi_cur_drive);
796 DEBUG("[PISCSI] %s Read from DRVTYPE %d, drive attached.\n", op_type_names[type], piscsi_cur_drive);
799 case PISCSI_CMD_DRVNUM:
800 return piscsi_cur_drive;
802 case PISCSI_CMD_CYLS:
803 DEBUG("[PISCSI] %s Read from CYLS %d: %d\n", op_type_names[type], piscsi_cur_drive, devs[piscsi_cur_drive].c);
804 return devs[piscsi_cur_drive].c;
806 case PISCSI_CMD_HEADS:
807 DEBUG("[PISCSI] %s Read from HEADS %d: %d\n", op_type_names[type], piscsi_cur_drive, devs[piscsi_cur_drive].h);
808 return devs[piscsi_cur_drive].h;
810 case PISCSI_CMD_SECS:
811 DEBUG("[PISCSI] %s Read from SECS %d: %d\n", op_type_names[type], piscsi_cur_drive, devs[piscsi_cur_drive].s);
812 return devs[piscsi_cur_drive].s;
814 case PISCSI_CMD_BLOCKS: {
815 uint32_t blox = devs[piscsi_cur_drive].fs / 512;
816 DEBUG("[PISCSI] %s Read from BLOCKS %d: %d\n", op_type_names[type], piscsi_cur_drive, (uint32_t)(devs[piscsi_cur_drive].fs / 512));
817 DEBUG("fs: %lld (%d)\n", devs[piscsi_cur_drive].fs, blox);
821 case PISCSI_CMD_GETPART: {
822 DEBUG("[PISCSI] Get ROM partition %d offset: %.8X\n", rom_cur_partition, rom_partitions[rom_cur_partition]);
823 return rom_partitions[rom_cur_partition];
826 case PISCSI_CMD_GETPRIO:
827 DEBUG("[PISCSI] Get partition %d boot priority: %d\n", rom_cur_partition, rom_partition_prio[rom_cur_partition]);
828 return rom_partition_prio[rom_cur_partition];
830 case PISCSI_CMD_CHECKFS:
831 DEBUG("[PISCSI] Get current loaded file system: %.8X\n", filesystems[rom_cur_fs].FS_ID);
832 return filesystems[rom_cur_fs].FS_ID;
833 case PISCSI_CMD_FSSIZE:
834 DEBUG("[PISCSI] Get alloc size of loaded file system: %d\n", filesystems[rom_cur_fs].h_info.alloc_size);
835 return filesystems[rom_cur_fs].h_info.alloc_size;
837 DEBUG("[!!!PISCSI] WARN: Unhandled %s register read from %.8X\n", op_type_names[type], addr);