/* * 86Box A hypervisor and IBM PC system emulator that specializes in * running old operating systems and software designed for IBM * PC systems and compatibles from 1981 through fairly recent * system designs based on the PCI bus. * * Emulation of SCSI fixed disks. * * * * Authors: Miran Grca, * * Copyright 2017-2018 Miran Grca. */ #include #include #ifdef ENABLE_SCSI_DISK_LOG #include #endif #include #include #include #include #include <86box/86box.h> #include <86box/timer.h> #include <86box/device.h> #include <86box/log.h> #include <86box/scsi.h> #include <86box/scsi_device.h> #include <86box/machine.h> #include <86box/nvr.h> #include <86box/hdc_ide.h> #include <86box/plat.h> #include <86box/ui.h> #include <86box/hdd.h> #include <86box/scsi_disk.h> #include <86box/version.h> #define IDE_ATAPI_IS_EARLY id->sc->pad0 #define scsi_disk_sense_error dev->sense[0] #define scsi_disk_sense_key dev->sense[2] #define scsi_disk_info *(uint32_t *) &(dev->sense[3]) #define scsi_disk_asc dev->sense[12] #define scsi_disk_ascq dev->sense[13] // clang-format off /* Table of all SCSI commands and their flags, needed for the new disc change / not ready handler. */ const uint8_t scsi_disk_command_flags[0x100] = { [0x00] = IMPLEMENTED | CHECK_READY, [0x01] = IMPLEMENTED | ALLOW_UA | SCSI_ONLY, [0x03] = IMPLEMENTED | ALLOW_UA, [0x04] = IMPLEMENTED | CHECK_READY | ALLOW_UA | SCSI_ONLY, [0x08] = IMPLEMENTED | CHECK_READY, [0x0a ... 0x0b] = IMPLEMENTED | CHECK_READY, [0x12] = IMPLEMENTED | ALLOW_UA, [0x13] = IMPLEMENTED | CHECK_READY | SCSI_ONLY, [0x15] = IMPLEMENTED, [0x16 ... 0x17] = IMPLEMENTED | SCSI_ONLY, [0x1a] = IMPLEMENTED, [0x1d] = IMPLEMENTED, [0x1e] = IMPLEMENTED | CHECK_READY, [0x25] = IMPLEMENTED | CHECK_READY, [0x28] = IMPLEMENTED | CHECK_READY, [0x2a ... 0x2b] = IMPLEMENTED | CHECK_READY, [0x2e] = IMPLEMENTED | CHECK_READY, [0x2f] = IMPLEMENTED | CHECK_READY | SCSI_ONLY, [0x41] = IMPLEMENTED | CHECK_READY, [0x55] = IMPLEMENTED, [0x5a] = IMPLEMENTED, [0xa8] = IMPLEMENTED | CHECK_READY, [0xaa] = IMPLEMENTED | CHECK_READY, [0xae] = IMPLEMENTED | CHECK_READY, [0xaf] = IMPLEMENTED | CHECK_READY | SCSI_ONLY, [0xbd] = IMPLEMENTED }; uint64_t scsi_disk_mode_sense_page_flags = (GPMODEP_FORMAT_DEVICE_PAGE | GPMODEP_RIGID_DISK_PAGE | GPMODEP_UNK_VENDOR_PAGE | GPMODEP_ALL_PAGES); static const mode_sense_pages_t scsi_disk_mode_sense_pages_default = { { [0x03] = { GPMODE_FORMAT_DEVICE_PAGE, 0x16, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, [0x04] = { GPMODE_RIGID_DISK_PAGE, 0x16, 0x00, 0x10, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc8, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x15, 0x18, 0x00, 0x00 }, [0x30] = { GPMODE_UNK_VENDOR_PAGE | 0x80, 0x16, '8' , '6' , 'B' , 'o' , 'x' , ' ' , ' ' , ' ' , ' ' , ' ' , ' ' , ' ' , ' ' , ' ' , ' ' , ' ' , ' ' , ' ' , ' ' , ' ' , ' ' , ' ' } } }; static const mode_sense_pages_t scsi_disk_mode_sense_pages_changeable = { { [0x03] = { GPMODE_FORMAT_DEVICE_PAGE, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, [0x04] = { GPMODE_RIGID_DISK_PAGE, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, [0x30] = { GPMODE_UNK_VENDOR_PAGE | 0x80, 0x16, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } } }; // clang-format on static void scsi_disk_command_complete(scsi_disk_t *dev); static void scsi_disk_mode_sense_load(scsi_disk_t *dev); static void scsi_disk_init(scsi_disk_t *dev); #ifdef ENABLE_SCSI_DISK_LOG int scsi_disk_do_log = ENABLE_SCSI_DISK_LOG; static void scsi_disk_log(void *priv, const char *fmt, ...) { va_list ap; if (scsi_disk_do_log) { va_start(ap, fmt); log_out(priv, fmt, ap); va_end(ap); } } #else # define scsi_disk_log(priv, fmt, ...) #endif static void scsi_disk_set_callback(const scsi_disk_t *dev) { if (dev->drv->bus_type != HDD_BUS_SCSI) ide_set_callback(ide_drives[dev->drv->ide_channel], dev->callback); } static void scsi_disk_init(scsi_disk_t *dev) { if (dev != NULL) { /* Do a reset (which will also rezero it). */ scsi_disk_reset((scsi_common_t *) dev); /* Configure the drive. */ dev->requested_blocks = 1; dev->drv->bus_mode = 0; if (dev->drv->bus_type >= HDD_BUS_ATAPI) dev->drv->bus_mode |= 2; if (dev->drv->bus_type < HDD_BUS_SCSI) dev->drv->bus_mode |= 1; scsi_disk_log(dev->log, "Bus type %i, bus mode %i\n", dev->drv->bus_type, dev->drv->bus_mode); dev->sense[0] = 0xf0; dev->sense[7] = 10; dev->tf->status = 0; dev->tf->pos = 0; dev->packet_status = PHASE_NONE; scsi_disk_sense_key = scsi_disk_asc = scsi_disk_ascq = dev->unit_attention = 0; scsi_disk_info = 0x00; scsi_disk_mode_sense_load(dev); } } /* Returns: 0 for none, 1 for PIO, 2 for DMA. */ static int scsi_disk_current_mode(const scsi_disk_t *dev) { int ret = 0; if (dev->drv->bus_type == HDD_BUS_SCSI) ret = 2; else if (dev->drv->bus_type == HDD_BUS_ATAPI) { scsi_disk_log(dev->log, "ATAPI drive, setting to %s\n", (dev->tf->features & 1) ? "DMA" : "PIO", dev->id); ret = (dev->tf->features & 1) ? 2 : 1; } return ret; } static void scsi_disk_mode_sense_load(scsi_disk_t *dev) { char file_name[512] = { 0 }; memset(&dev->ms_pages_saved, 0, sizeof(mode_sense_pages_t)); memcpy(&dev->ms_pages_saved, &scsi_disk_mode_sense_pages_default, sizeof(mode_sense_pages_t)); sprintf(file_name, "scsi_disk_%02i_mode_sense.bin", dev->id); FILE *fp = plat_fopen(nvr_path(file_name), "rb"); if (fp) { if (fread(dev->ms_pages_saved.pages[0x30], 1, 0x18, fp) != 0x18) log_fatal(dev->log, "scsi_disk_mode_sense_load(): Error reading data\n"); fclose(fp); } } static void scsi_disk_mode_sense_save(const scsi_disk_t *dev) { char file_name[512] = { 0 }; sprintf(file_name, "scsi_disk_%02i_mode_sense.bin", dev->id); FILE *fp = plat_fopen(nvr_path(file_name), "wb"); if (fp) { fwrite(dev->ms_pages_saved.pages[0x30], 1, 0x18, fp); fclose(fp); } } /* SCSI Mode Sense 6/10 */ uint8_t scsi_disk_mode_sense_read(const scsi_disk_t *dev, const uint8_t pgctl, const uint8_t page, const uint8_t pos) { if (pgctl == 1) return scsi_disk_mode_sense_pages_changeable.pages[page][pos]; if (page == GPMODE_RIGID_DISK_PAGE) switch (pgctl) { /* Rigid disk geometry page. */ case 0: case 2: case 3: switch (pos) { default: case 0: case 1: return scsi_disk_mode_sense_pages_default.pages[page][pos]; case 2: case 6: case 9: return (dev->drv->tracks >> 16) & 0xff; case 3: case 7: case 10: return (dev->drv->tracks >> 8) & 0xff; case 4: case 8: case 11: return dev->drv->tracks & 0xff; case 5: return dev->drv->hpc & 0xff; } default: break; } else if (page == GPMODE_FORMAT_DEVICE_PAGE) switch (pgctl) { /* Format device page. */ case 0: case 2: case 3: switch (pos) { default: case 0: case 1: return scsi_disk_mode_sense_pages_default.pages[page][pos]; /* Actual sectors + the 1 "alternate sector" we report. */ case 10: return ((dev->drv->spt + 1) >> 8) & 0xff; case 11: return (dev->drv->spt + 1) & 0xff; } default: break; } else switch (pgctl) { case 0: case 3: return dev->ms_pages_saved.pages[page][pos]; case 2: return scsi_disk_mode_sense_pages_default.pages[page][pos]; default: break; } return 0; } uint32_t scsi_disk_mode_sense(const scsi_disk_t *dev, uint8_t *buf, uint32_t pos, uint8_t page, const uint8_t block_descriptor_len) { int size = hdd_image_get_last_sector(dev->id); page &= 0x3f; if (block_descriptor_len) { buf[pos++] = 1; /* Density code. */ buf[pos++] = (size >> 16) & 0xff; /* Number of blocks (0 = all). */ buf[pos++] = (size >> 8) & 0xff; buf[pos++] = size & 0xff; buf[pos++] = 0; /* Reserved. */ buf[pos++] = 0; /* Block length (0x200 = 512 bytes). */ buf[pos++] = 2; buf[pos++] = 0; } for (uint8_t i = 0; i < 0x40; i++) { if ((page == GPMODE_ALL_PAGES) || (page == i)) { if (scsi_disk_mode_sense_page_flags & (1LL << (uint64_t) page)) { const uint8_t pgctl = (page >> 6) & 3; const uint8_t msplen = scsi_disk_mode_sense_read(dev, pgctl, i, 1); buf[pos++] = scsi_disk_mode_sense_read(dev, pgctl, i, 0); buf[pos++] = msplen; scsi_disk_log(dev->log, "MODE SENSE: Page [%02X] length %i\n", i, msplen); for (uint8_t j = 0; j < msplen; j++) buf[pos++] = scsi_disk_mode_sense_read(dev, pgctl, i, 2 + j); } } } return pos; } static void scsi_disk_update_request_length(scsi_disk_t *dev, int len, const int block_len) { int bt; int min_len = 0; dev->max_transfer_len = dev->tf->request_length; /* For media access commands, make sure the requested DRQ length matches the block length. */ switch (dev->current_cdb[0]) { case 0x08: case 0x0a: case 0x28: case 0x2a: case 0xa8: case 0xaa: /* Round it to the nearest 2048 bytes. */ dev->max_transfer_len = (dev->max_transfer_len >> 9) << 9; /* Make sure total length is not bigger than sum of the lengths of all the requested blocks. */ bt = (dev->requested_blocks * block_len); if (len > bt) len = bt; min_len = block_len; if (len <= block_len) { /* Total length is less or equal to block length. */ if (dev->max_transfer_len < block_len) { /* Transfer a minimum of (block size) bytes. */ dev->max_transfer_len = block_len; dev->packet_len = block_len; break; } } fallthrough; default: dev->packet_len = len; break; } /* If the DRQ length is odd, and the total remaining length is bigger, make sure it's even. */ if ((dev->max_transfer_len & 1) && (dev->max_transfer_len < len)) dev->max_transfer_len &= 0xfffe; /* If the DRQ length is smaller or equal in size to the total remaining length, set it to that. */ if (!dev->max_transfer_len) dev->max_transfer_len = 65534; if ((len <= dev->max_transfer_len) && (len >= min_len)) dev->tf->request_length = dev->max_transfer_len = len; else if (len > dev->max_transfer_len) dev->tf->request_length = dev->max_transfer_len; return; } static double scsi_disk_bus_speed(scsi_disk_t *dev) { double ret = -1.0; if (dev && dev->drv && (dev->drv->bus_type == HDD_BUS_SCSI)) { dev->callback = -1.0; /* Speed depends on SCSI controller */ return 0.0; } else { if (dev && dev->drv) ret = ide_atapi_get_period(dev->drv->ide_channel); if (ret == -1.0) { if (dev) dev->callback = -1.0; return 0.0; } else /* We get bytes per µs, so divide 1000000.0 by it. */ return 1000000.0 / ret; } } void scsi_disk_command_common(scsi_disk_t *dev) { double bytes_per_second; double period; /* MAP: BUSY_STAT, no DRQ, phase 1. */ dev->tf->status = BUSY_STAT; dev->tf->phase = 1; dev->tf->pos = 0; dev->callback = 0; if (dev->packet_status == PHASE_COMPLETE) { switch (dev->current_cdb[0]) { case GPCMD_VERIFY_6: case GPCMD_VERIFY_10: case GPCMD_VERIFY_12: case GPCMD_WRITE_6: case GPCMD_WRITE_10: case GPCMD_WRITE_AND_VERIFY_10: case GPCMD_WRITE_12: case GPCMD_WRITE_AND_VERIFY_12: case GPCMD_WRITE_SAME_10: /* Seek time is in us. */ period = hdd_timing_write(dev->drv, dev->drv->seek_pos, dev->drv->seek_len); scsi_disk_log(dev->log, "Seek period: %" PRIu64 " us\n", (uint64_t) period); dev->callback += period; /* Account for seek time. */ bytes_per_second = scsi_bus_get_speed(dev->drv->scsi_id >> 4); period = 1000000.0 / bytes_per_second; scsi_disk_log(dev->log, "Byte transfer period: %" PRIu64 " us\n", (uint64_t) period); period = period * (double) (dev->packet_len); scsi_disk_log(dev->log, "Sector transfer period: %" PRIu64 " us\n", (uint64_t) period); dev->callback += period; break; default: dev->callback = 0; break; } } else { switch (dev->current_cdb[0]) { case GPCMD_REZERO_UNIT: case 0x0b: case 0x2b: /* Seek time is in us. */ period = hdd_seek_get_time(dev->drv, (dev->current_cdb[0] == GPCMD_REZERO_UNIT) ? 0 : dev->sector_pos, HDD_OP_SEEK, 0, 0.0); scsi_disk_log(dev->log, "Seek period: %" PRIu64 " us\n", (uint64_t) period); dev->callback += period; scsi_disk_set_callback(dev); return; case 0x08: case 0x28: case 0xa8: /* Seek time is in us. */ period = hdd_timing_read(dev->drv, dev->drv->seek_pos, dev->drv->seek_len); scsi_disk_log(dev->log, "Seek period: %" PRIu64 " us\n", (uint64_t) period); dev->callback += period; /* Account for seek time. */ bytes_per_second = scsi_bus_get_speed(dev->drv->scsi_id >> 4); break; case 0x25: default: bytes_per_second = scsi_disk_bus_speed(dev); if (bytes_per_second == 0.0) { dev->callback = -1; /* Speed depends on SCSI controller */ return; } break; } /* For ATAPI, this will be 1000000.0 / µs_per_byte, and this will convert it back to µs_per_byte. */ period = 1000000.0 / bytes_per_second; scsi_disk_log(dev->log, "Byte transfer period: %" PRIu64 " us\n", (uint64_t) period); period = period * (double) (dev->packet_len); scsi_disk_log(dev->log, "Sector transfer period: %" PRIu64 " us\n", (uint64_t) period); dev->callback += period; } scsi_disk_set_callback(dev); } static void scsi_disk_command_complete(scsi_disk_t *dev) { dev->packet_status = PHASE_COMPLETE; scsi_disk_command_common(dev); } static void scsi_disk_command_read(scsi_disk_t *dev) { dev->packet_status = PHASE_DATA_IN; scsi_disk_command_common(dev); } static void scsi_disk_command_read_dma(scsi_disk_t *dev) { dev->packet_status = PHASE_DATA_IN_DMA; scsi_disk_command_common(dev); } static void scsi_disk_command_write(scsi_disk_t *dev) { dev->packet_status = PHASE_DATA_OUT; scsi_disk_command_common(dev); } static void scsi_disk_command_write_dma(scsi_disk_t *dev) { dev->packet_status = PHASE_DATA_OUT_DMA; scsi_disk_command_common(dev); } /* dev = Pointer to current SCSI disk device; len = Total transfer length; block_len = Length of a single block (why does it matter?!); alloc_len = Allocated transfer length; direction = Transfer direction (0 = read from host, 1 = write to host). */ static void scsi_disk_data_command_finish(scsi_disk_t *dev, int len, const int block_len, const int alloc_len, const int direction) { scsi_disk_log(dev->log, "Finishing command (%02X): %i, %i, %i, %i, %i\n", dev->current_cdb[0], len, block_len, alloc_len, direction, dev->tf->request_length); dev->tf->pos = 0; if (alloc_len >= 0) { if (alloc_len < len) len = alloc_len; } if ((len == 0) || (scsi_disk_current_mode(dev) == 0)) { if (dev->drv->bus_type != HDD_BUS_SCSI) dev->packet_len = 0; scsi_disk_command_complete(dev); } else { if (scsi_disk_current_mode(dev) == 2) { if (dev->drv->bus_type != HDD_BUS_SCSI) dev->packet_len = alloc_len; if (direction == 0) scsi_disk_command_read_dma(dev); else scsi_disk_command_write_dma(dev); } else { scsi_disk_update_request_length(dev, len, block_len); if ((dev->drv->bus_type != HDD_BUS_SCSI) && (dev->tf->request_length == 0)) scsi_disk_command_complete(dev); else if (direction == 0) scsi_disk_command_read(dev); else scsi_disk_command_write(dev); } } scsi_disk_log(dev->log, "Status: %i, cylinder %i, packet length: %i, position: %i, " "phase: %i\n", dev->packet_status, dev->tf->request_length, dev->packet_len, dev->tf->pos, dev->tf->phase); } static void scsi_disk_sense_clear(scsi_disk_t *dev, UNUSED(int command)) { scsi_disk_sense_key = scsi_disk_asc = scsi_disk_ascq = 0; scsi_disk_info = 0x00000000; } static void scsi_disk_set_phase(const scsi_disk_t *dev, const uint8_t phase) { const uint8_t scsi_bus = (dev->drv->scsi_id >> 4) & 0x0f; const uint8_t scsi_id = dev->drv->scsi_id & 0x0f; if (dev->drv->bus_type == HDD_BUS_SCSI) scsi_devices[scsi_bus][scsi_id].phase = phase; } static void scsi_disk_cmd_error(scsi_disk_t *dev) { scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); dev->tf->error = ((scsi_disk_sense_key & 0xf) << 4) | ABRT_ERR; dev->tf->status = READY_STAT | ERR_STAT; dev->tf->phase = 3; dev->packet_status = PHASE_ERROR; dev->callback = 50.0 * SCSI_TIME; scsi_disk_set_callback(dev); ui_sb_update_icon(SB_HDD | dev->drv->bus_type, 0); ui_sb_update_icon_write(SB_HDD | dev->drv->bus_type, 0); scsi_disk_log(dev->log, "ERROR: %02X/%02X/%02X\n", scsi_disk_sense_key, scsi_disk_asc, scsi_disk_ascq); } static void scsi_disk_buf_alloc(scsi_disk_t *dev, uint32_t len) { scsi_disk_log(dev->log, "Allocated buffer length: %i\n", len); if (dev->temp_buffer == NULL) dev->temp_buffer = (uint8_t *) malloc(len); } static void scsi_disk_buf_free(scsi_disk_t *dev) { if (dev->temp_buffer) { scsi_disk_log(dev->log, "Freeing buffer...\n"); free(dev->temp_buffer); dev->temp_buffer = NULL; } } static void scsi_disk_bus_master_error(scsi_common_t *sc) { scsi_disk_t *dev = (scsi_disk_t *) sc; scsi_disk_buf_free(dev); scsi_disk_sense_key = scsi_disk_asc = scsi_disk_ascq = 0; scsi_disk_info = (dev->sector_pos >> 24) | ((dev->sector_pos >> 16) << 8) | ((dev->sector_pos >> 8) << 16) | ( dev->sector_pos << 24); scsi_disk_cmd_error(dev); } static void scsi_disk_write_error(scsi_disk_t *dev) { scsi_disk_sense_key = SENSE_MEDIUM_ERROR; scsi_disk_asc = ASC_WRITE_ERROR; scsi_disk_ascq = 0; scsi_disk_info = (dev->sector_pos >> 24) | ((dev->sector_pos >> 16) << 8) | ((dev->sector_pos >> 8) << 16) | ( dev->sector_pos << 24); scsi_disk_cmd_error(dev); } static void scsi_disk_read_error(scsi_disk_t *dev) { scsi_disk_sense_key = SENSE_MEDIUM_ERROR; scsi_disk_asc = ASC_UNRECOVERED_READ_ERROR; scsi_disk_ascq = 0; scsi_disk_info = (dev->sector_pos >> 24) | ((dev->sector_pos >> 16) << 8) | ((dev->sector_pos >> 8) << 16) | ( dev->sector_pos << 24); scsi_disk_cmd_error(dev); } static void scsi_disk_invalid_lun(scsi_disk_t *dev, const uint8_t lun) { scsi_disk_sense_key = SENSE_ILLEGAL_REQUEST; scsi_disk_asc = ASC_INV_LUN; scsi_disk_ascq = 0; scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); scsi_disk_info = lun << 24; scsi_disk_cmd_error(dev); } static void scsi_disk_illegal_opcode(scsi_disk_t *dev, const uint8_t opcode) { scsi_disk_sense_key = SENSE_ILLEGAL_REQUEST; scsi_disk_asc = ASC_ILLEGAL_OPCODE; scsi_disk_ascq = 0; scsi_disk_info = opcode << 24; scsi_disk_cmd_error(dev); } static void scsi_disk_lba_out_of_range(scsi_disk_t *dev) { scsi_disk_sense_key = SENSE_ILLEGAL_REQUEST; scsi_disk_asc = ASC_LBA_OUT_OF_RANGE; scsi_disk_ascq = 0; scsi_disk_info = (dev->sector_pos >> 24) | ((dev->sector_pos >> 16) << 8) | ((dev->sector_pos >> 8) << 16) | ( dev->sector_pos << 24); scsi_disk_cmd_error(dev); } static void scsi_disk_invalid_field(scsi_disk_t *dev, const uint32_t field) { scsi_disk_sense_key = SENSE_ILLEGAL_REQUEST; scsi_disk_asc = ASC_INV_FIELD_IN_CMD_PACKET; scsi_disk_ascq = 0; scsi_disk_info = (field >> 24) | ((field >> 16) << 8) | ((field >> 8) << 16) | ( field << 24); scsi_disk_cmd_error(dev); dev->tf->status = 0x53; } static void scsi_disk_invalid_field_pl(scsi_disk_t *dev, const uint32_t field) { scsi_disk_sense_key = SENSE_ILLEGAL_REQUEST; scsi_disk_asc = ASC_INV_FIELD_IN_PARAMETER_LIST; scsi_disk_ascq = 0; scsi_disk_info = (field >> 24) | ((field >> 16) << 8) | ((field >> 8) << 16) | ( field << 24); scsi_disk_cmd_error(dev); dev->tf->status = 0x53; } static void scsi_disk_data_phase_error(scsi_disk_t *dev, const uint32_t info) { scsi_disk_sense_key = SENSE_ILLEGAL_REQUEST; scsi_disk_asc = ASC_DATA_PHASE_ERROR; scsi_disk_ascq = 0; scsi_disk_info = (info >> 24) | ((info >> 16) << 8) | ((info >> 8) << 16) | ( info << 24); scsi_disk_cmd_error(dev); } static int scsi_disk_blocks(scsi_disk_t *dev, int32_t *len, UNUSED(int first_batch), const int out) { const uint32_t medium_size = hdd_image_get_last_sector(dev->id) + 1; *len = 0; if (!dev->sector_len) { scsi_disk_command_complete(dev); return -1; } scsi_disk_log(dev->log, "%sing %i blocks starting from %i...\n", out ? "Writ" : "Read", dev->requested_blocks, dev->sector_pos); if (dev->sector_pos >= medium_size) { scsi_disk_log(dev->log, "Trying to %s beyond the end of disk\n", out ? "write" : "read"); scsi_disk_lba_out_of_range(dev); return 0; } *len = dev->requested_blocks << 9; for (int i = 0; i < dev->requested_blocks; i++) { if (out) { if (hdd_image_write(dev->id, dev->sector_pos, 1, dev->temp_buffer + (i << 9)) < 0) { scsi_disk_write_error(dev); return -1; } } else { if (hdd_image_read(dev->id, dev->sector_pos, 1, dev->temp_buffer + (i << 9)) < 0) { scsi_disk_read_error(dev); return -1; } } dev->sector_pos++; } scsi_disk_log(dev->log, "%s %i bytes of blocks...\n", out ? "Written" : "Read", *len); dev->sector_len -= dev->requested_blocks; return 1; } static int scsi_disk_pre_execution_check(scsi_disk_t *dev, const uint8_t *cdb) { if ((cdb[0] != GPCMD_REQUEST_SENSE) && (dev->cur_lun == SCSI_LUN_USE_CDB) && (cdb[1] & 0xe0)) { scsi_disk_log(dev->log, "Attempting to execute a unknown command " "targeted at SCSI LUN %i\n", ((dev->tf->request_length >> 5) & 7)); scsi_disk_invalid_lun(dev, cdb[1] >> 5); return 0; } if (!(scsi_disk_command_flags[cdb[0]] & IMPLEMENTED)) { scsi_disk_log(dev->log, "Attempting to execute unknown " "command %02X over %s\n", cdb[0], (dev->drv->bus_type == HDD_BUS_SCSI) ? "SCSI" : "ATAPI"); scsi_disk_illegal_opcode(dev, cdb[0]); return 0; } if ((dev->drv->bus_type < HDD_BUS_SCSI) && (scsi_disk_command_flags[cdb[0]] & SCSI_ONLY)) { scsi_disk_log(dev->log, "Attempting to execute SCSI-only command %02X " "over ATAPI\n", cdb[0]); scsi_disk_illegal_opcode(dev, cdb[0]); return 0; } if ((dev->drv->bus_type == HDD_BUS_SCSI) && (scsi_disk_command_flags[cdb[0]] & ATAPI_ONLY)) { scsi_disk_log(dev->log, "Attempting to execute ATAPI-only command %02X " "over SCSI\n", cdb[0]); scsi_disk_illegal_opcode(dev, cdb[0]); return 0; } /* Unless the command is REQUEST SENSE, clear the sense. This will *NOT* the UNIT ATTENTION condition if it's set. */ if (cdb[0] != GPCMD_REQUEST_SENSE) scsi_disk_sense_clear(dev, cdb[0]); scsi_disk_log(dev->log, "Continuing with command %02X\n", cdb[0]); return 1; } static void scsi_disk_seek(const scsi_disk_t *dev, const uint32_t pos) { /* scsi_disk_log(dev->log, "Seek %08X\n", pos); */ hdd_image_seek(dev->id, pos); } static void scsi_disk_rezero(scsi_disk_t *dev) { if (dev->id != 0xff) { dev->sector_pos = dev->sector_len = 0; scsi_disk_seek(dev, 0); } } void scsi_disk_reset(scsi_common_t *sc) { scsi_disk_t *dev = (scsi_disk_t *) sc; scsi_disk_rezero(dev); dev->tf->status = 0; dev->callback = 0.0; scsi_disk_set_callback(dev); dev->tf->phase = 1; dev->tf->request_length = 0xEB14; dev->packet_status = PHASE_NONE; dev->unit_attention = 0; dev->cur_lun = SCSI_LUN_USE_CDB; scsi_disk_sense_key = scsi_disk_asc = scsi_disk_ascq = dev->unit_attention = 0; scsi_disk_info = 0x00; } void scsi_disk_request_sense(scsi_disk_t *dev, uint8_t *buffer, const uint8_t alloc_length, const int desc) { /* Will return 18 bytes of 0. */ if (alloc_length != 0) { memset(buffer, 0, alloc_length); if (desc) { buffer[1] = scsi_disk_sense_key; buffer[2] = scsi_disk_asc; buffer[3] = scsi_disk_ascq; } else memcpy(buffer, dev->sense, alloc_length); buffer[0] = desc ? 0x70 : 0xf0; buffer[7] = 10; scsi_disk_log(dev->log, "Reporting sense: %02X %02X %02X\n", buffer[2], buffer[12], buffer[13]); /* Clear the sense stuff as per the spec. */ scsi_disk_sense_clear(dev, GPCMD_REQUEST_SENSE); } } static void scsi_disk_request_sense_for_scsi(scsi_common_t *sc, uint8_t *buffer, const uint8_t alloc_length) { scsi_disk_t *dev = (scsi_disk_t *) sc; scsi_disk_request_sense(dev, buffer, alloc_length, 0); } static void scsi_disk_set_buf_len(const scsi_disk_t *dev, int32_t *BufLen, int32_t *src_len) { if (dev->drv->bus_type == HDD_BUS_SCSI) { if (*BufLen == -1) *BufLen = *src_len; else { *BufLen = MIN(*src_len, *BufLen); *src_len = *BufLen; } scsi_disk_log(dev->log, "Actual transfer length: %i\n", *BufLen); } } static void scsi_disk_command(scsi_common_t *sc, const uint8_t *cdb) { char device_identify[9] = { '8', '6', 'B', '_', 'H', 'D', '0', '0', 0 }; char device_identify_ex[15] = { '8', '6', 'B', '_', 'H', 'D', '0', '0', ' ', 'v', '1', '.', '0', '0', 0 }; scsi_disk_t * dev = (scsi_disk_t *) sc; const uint32_t last_sector = hdd_image_get_last_sector(dev->id); const uint8_t scsi_bus = (dev->drv->scsi_id >> 4) & 0x0f; const uint8_t scsi_id = dev->drv->scsi_id & 0x0f; int32_t blen = 0; int pos = 0; int idx = 0; int block_desc; int ret; int32_t * BufLen; int32_t len; int32_t max_len; int32_t alloc_length; unsigned size_idx; unsigned preamble_len; if (dev->drv->bus_type == HDD_BUS_SCSI) { BufLen = &scsi_devices[scsi_bus][scsi_id].buffer_length; dev->tf->status &= ~ERR_STAT; } else { BufLen = &blen; dev->tf->error = 0; } dev->packet_len = 0; dev->request_pos = 0; device_identify[6] = (dev->id / 10) + 0x30; device_identify[7] = (dev->id % 10) + 0x30; device_identify_ex[6] = (dev->id / 10) + 0x30; device_identify_ex[7] = (dev->id % 10) + 0x30; device_identify_ex[10] = EMU_VERSION_EX[0]; device_identify_ex[12] = EMU_VERSION_EX[2]; device_identify_ex[13] = EMU_VERSION_EX[3]; memcpy(dev->current_cdb, cdb, 12); if (cdb[0] != 0) { scsi_disk_log(dev->log, "Command 0x%02X, Sense Key %02X, Asc %02X, Ascq %02X\n", cdb[0], scsi_disk_sense_key, scsi_disk_asc, scsi_disk_ascq); scsi_disk_log(dev->log, "Request length: %04X\n", dev->tf->request_length); scsi_disk_log(dev->log, "CDB: %02X %02X %02X %02X %02X %02X %02X %02X " "%02X %02X %02X %02X\n", cdb[0], cdb[1], cdb[2], cdb[3], cdb[4], cdb[5], cdb[6], cdb[7], cdb[8], cdb[9], cdb[10], cdb[11]); } dev->sector_len = 0; scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); /* This handles the Not Ready/Unit Attention check if it has to be handled at this point. */ if (scsi_disk_pre_execution_check(dev, cdb) == 0) return; switch (cdb[0]) { case GPCMD_SEND_DIAGNOSTIC: if (!(cdb[1] & (1 << 2))) { scsi_disk_invalid_field(dev, cdb[1]); return; } fallthrough; case GPCMD_SCSI_RESERVE: case GPCMD_SCSI_RELEASE: case GPCMD_TEST_UNIT_READY: case GPCMD_FORMAT_UNIT: scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); scsi_disk_command_complete(dev); break; case GPCMD_REZERO_UNIT: dev->sector_pos = dev->sector_len = 0; dev->drv->seek_pos = dev->sector_pos; dev->drv->seek_len = dev->sector_len; scsi_disk_seek(dev, 0); scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); break; case GPCMD_REQUEST_SENSE: len = cdb[4]; if (!len) { scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); dev->packet_status = PHASE_COMPLETE; dev->callback = 20.0 * SCSI_TIME; scsi_disk_set_callback(dev); break; } scsi_disk_buf_alloc(dev, 256); scsi_disk_set_buf_len(dev, BufLen, &len); len = (cdb[1] & 1) ? 8 : 18; scsi_disk_request_sense(dev, dev->temp_buffer, *BufLen, cdb[1] & 1); scsi_disk_set_phase(dev, SCSI_PHASE_DATA_IN); scsi_disk_data_command_finish(dev, len, len, *BufLen, 0); break; case GPCMD_MECHANISM_STATUS: scsi_disk_set_phase(dev, SCSI_PHASE_DATA_IN); len = (cdb[8] << 8) | cdb[9]; scsi_disk_buf_alloc(dev, 8); scsi_disk_set_buf_len(dev, BufLen, &len); memset(dev->temp_buffer, 0, 8); dev->temp_buffer[5] = 1; scsi_disk_data_command_finish(dev, 8, 8, len, 0); break; case GPCMD_READ_6: case GPCMD_READ_10: case GPCMD_READ_12: scsi_disk_set_phase(dev, SCSI_PHASE_DATA_IN); alloc_length = 512; switch (cdb[0]) { case GPCMD_READ_6: dev->sector_len = cdb[4]; /* For READ (6) and WRITE (6), a length of 0 indicates a transfer of 256 sectors. */ if (dev->sector_len == 0) dev->sector_len = 256; dev->sector_pos = ((((uint32_t) cdb[1]) & 0x1f) << 16) | (((uint32_t) cdb[2]) << 8) | ((uint32_t) cdb[3]); break; case GPCMD_READ_10: dev->sector_len = (cdb[7] << 8) | cdb[8]; dev->sector_pos = (cdb[2] << 24) | (cdb[3] << 16) | (cdb[4] << 8) | cdb[5]; break; case GPCMD_READ_12: dev->sector_len = (((uint32_t) cdb[6]) << 24) | (((uint32_t) cdb[7]) << 16) | (((uint32_t) cdb[8]) << 8) | ((uint32_t) cdb[9]); dev->sector_pos = (((uint32_t) cdb[2]) << 24) | (((uint32_t) cdb[3]) << 16) | (((uint32_t) cdb[4]) << 8) | ((uint32_t) cdb[5]); break; default: break; } if (dev->sector_pos > last_sector) scsi_disk_lba_out_of_range(dev); else { if (dev->sector_len) { max_len = dev->sector_len; dev->requested_blocks = max_len; dev->packet_len = max_len * alloc_length; scsi_disk_buf_alloc(dev, dev->packet_len); dev->drv->seek_pos = dev->sector_pos; dev->drv->seek_len = dev->sector_len; ret = scsi_disk_blocks(dev, &alloc_length, 1, 0); alloc_length = dev->requested_blocks * 512; if (ret > 0) { dev->requested_blocks = max_len; dev->packet_len = alloc_length; scsi_disk_set_buf_len(dev, BufLen, (int32_t *) &dev->packet_len); scsi_disk_data_command_finish(dev, alloc_length, 512, alloc_length, 0); ui_sb_update_icon(SB_HDD | dev->drv->bus_type, dev->packet_status != PHASE_COMPLETE); } else { scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); dev->packet_status = (ret < 0) ? PHASE_ERROR : PHASE_COMPLETE; dev->callback = 20.0 * SCSI_TIME; scsi_disk_set_callback(dev); scsi_disk_buf_free(dev); } } else { scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); scsi_disk_log(dev->log, "All done - callback set\n"); dev->packet_status = PHASE_COMPLETE; dev->callback = 20.0 * SCSI_TIME; scsi_disk_set_callback(dev); } } break; case GPCMD_VERIFY_6: case GPCMD_VERIFY_10: case GPCMD_VERIFY_12: if (!(cdb[1] & 2)) { scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); scsi_disk_command_complete(dev); break; } fallthrough; case GPCMD_WRITE_6: case GPCMD_WRITE_10: case GPCMD_WRITE_AND_VERIFY_10: case GPCMD_WRITE_12: case GPCMD_WRITE_AND_VERIFY_12: scsi_disk_set_phase(dev, SCSI_PHASE_DATA_OUT); alloc_length = 512; switch (cdb[0]) { case GPCMD_VERIFY_6: case GPCMD_WRITE_6: dev->sector_len = cdb[4]; /* For READ (6) and WRITE (6), a length of 0 indicates a transfer of 256 sectors. */ if (dev->sector_len == 0) dev->sector_len = 256; dev->sector_pos = ((((uint32_t) cdb[1]) & 0x1f) << 16) | (((uint32_t) cdb[2]) << 8) | ((uint32_t) cdb[3]); scsi_disk_log(dev->log, "Length: %i, LBA: %i\n", dev->sector_len, dev->sector_pos); break; case GPCMD_VERIFY_10: case GPCMD_WRITE_10: case GPCMD_WRITE_AND_VERIFY_10: dev->sector_len = (cdb[7] << 8) | cdb[8]; dev->sector_pos = (cdb[2] << 24) | (cdb[3] << 16) | (cdb[4] << 8) | cdb[5]; scsi_disk_log(dev->log, "Length: %i, LBA: %i\n", dev->sector_len, dev->sector_pos); break; case GPCMD_VERIFY_12: case GPCMD_WRITE_12: case GPCMD_WRITE_AND_VERIFY_12: dev->sector_len = (((uint32_t) cdb[6]) << 24) | (((uint32_t) cdb[7]) << 16) | (((uint32_t) cdb[8]) << 8) | ((uint32_t) cdb[9]); dev->sector_pos = (((uint32_t) cdb[2]) << 24) | (((uint32_t) cdb[3]) << 16) | (((uint32_t) cdb[4]) << 8) | ((uint32_t) cdb[5]); break; default: break; } if (dev->sector_pos > last_sector) scsi_disk_lba_out_of_range(dev); else { if (dev->sector_len) { dev->drv->seek_pos = dev->sector_pos; dev->drv->seek_len = dev->sector_len; max_len = dev->sector_len; dev->requested_blocks = max_len; dev->packet_len = max_len * alloc_length; scsi_disk_buf_alloc(dev, dev->packet_len); dev->requested_blocks = max_len; dev->packet_len = max_len << 9; scsi_disk_set_buf_len(dev, BufLen, (int32_t *) &dev->packet_len); scsi_disk_data_command_finish(dev, dev->packet_len, 512, dev->packet_len, 1); ui_sb_update_icon_write(SB_HDD | dev->drv->bus_type, dev->packet_status != PHASE_COMPLETE); } else { scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); scsi_disk_log(dev->log, "All done - callback set\n"); dev->packet_status = PHASE_COMPLETE; dev->callback = 20.0 * SCSI_TIME; scsi_disk_set_callback(dev); } } break; case GPCMD_WRITE_SAME_10: alloc_length = 512; if ((cdb[1] & 6) == 6) scsi_disk_invalid_field(dev, cdb[1]); else { dev->sector_len = (cdb[7] << 8) | cdb[8]; dev->sector_pos = (cdb[2] << 24) | (cdb[3] << 16) | (cdb[4] << 8) | cdb[5]; if (dev->sector_pos > last_sector) scsi_disk_lba_out_of_range(dev); else { if (dev->sector_len) { scsi_disk_buf_alloc(dev, alloc_length); scsi_disk_set_buf_len(dev, BufLen, (int32_t *) &dev->packet_len); dev->requested_blocks = 1; dev->packet_len = alloc_length; scsi_disk_set_phase(dev, SCSI_PHASE_DATA_OUT); scsi_disk_data_command_finish(dev, 512, 512, alloc_length, 1); ui_sb_update_icon_write(SB_HDD | dev->drv->bus_type, dev->packet_status != PHASE_COMPLETE); } else { scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); scsi_disk_log(dev->log, "All done - callback set\n"); dev->packet_status = PHASE_COMPLETE; dev->callback = 20.0 * SCSI_TIME; scsi_disk_set_callback(dev); } } } break; case GPCMD_MODE_SENSE_6: case GPCMD_MODE_SENSE_10: scsi_disk_set_phase(dev, SCSI_PHASE_DATA_IN); if (dev->drv->bus_type == HDD_BUS_SCSI) block_desc = ((cdb[1] >> 3) & 1) ? 0 : 1; else block_desc = 0; if (cdb[0] == GPCMD_MODE_SENSE_6) { len = cdb[4]; scsi_disk_buf_alloc(dev, 256); } else { len = (cdb[8] | (cdb[7] << 8)); scsi_disk_buf_alloc(dev, 65536); } memset(dev->temp_buffer, 0, len); alloc_length = len; if (cdb[0] == GPCMD_MODE_SENSE_6) { len = scsi_disk_mode_sense(dev, dev->temp_buffer, 4, cdb[2], block_desc); if (len > alloc_length) len = alloc_length; dev->temp_buffer[0] = len - 1; dev->temp_buffer[1] = 0; if (block_desc) dev->temp_buffer[3] = 8; } else { len = scsi_disk_mode_sense(dev, dev->temp_buffer, 8, cdb[2], block_desc); if (len > alloc_length) len = alloc_length; dev->temp_buffer[0] = (len - 2) >> 8; dev->temp_buffer[1] = (len - 2) & 255; dev->temp_buffer[2] = 0; if (block_desc) { dev->temp_buffer[6] = 0; dev->temp_buffer[7] = 8; } } if (len > alloc_length) len = alloc_length; else if (len < alloc_length) alloc_length = len; scsi_disk_set_buf_len(dev, BufLen, &alloc_length); scsi_disk_log(dev->log, "Reading mode page: %02X...\n", cdb[2]); scsi_disk_data_command_finish(dev, len, len, alloc_length, 0); break; case GPCMD_MODE_SELECT_6: case GPCMD_MODE_SELECT_10: scsi_disk_set_phase(dev, SCSI_PHASE_DATA_OUT); if (cdb[0] == GPCMD_MODE_SELECT_6) { len = cdb[4]; scsi_disk_buf_alloc(dev, 256); } else { len = (cdb[7] << 8) | cdb[8]; scsi_disk_buf_alloc(dev, 65536); } scsi_disk_set_buf_len(dev, BufLen, &len); dev->total_length = len; dev->do_page_save = cdb[1] & 1; scsi_disk_data_command_finish(dev, len, len, len, 1); break; case GPCMD_INQUIRY: max_len = cdb[3]; max_len <<= 8; max_len |= cdb[4]; if ((!max_len) || (*BufLen == 0)) { scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); /* scsi_disk_log(dev->log, "All done - callback set\n"); */ dev->packet_status = PHASE_COMPLETE; dev->callback = 20.0 * SCSI_TIME; break; } scsi_disk_buf_alloc(dev, 65536); if (cdb[1] & 1) { preamble_len = 4; size_idx = 3; dev->temp_buffer[idx++] = 05; dev->temp_buffer[idx++] = cdb[2]; dev->temp_buffer[idx++] = 0; idx++; switch (cdb[2]) { case 0x00: dev->temp_buffer[idx++] = 0x00; dev->temp_buffer[idx++] = 0x83; break; case 0x83: if (idx + 24 > max_len) { scsi_disk_buf_free(dev); scsi_disk_data_phase_error(dev, idx + 24); return; } dev->temp_buffer[idx++] = 0x02; dev->temp_buffer[idx++] = 0x00; dev->temp_buffer[idx++] = 0x00; dev->temp_buffer[idx++] = 20; /* Serial */ ide_padstr8(dev->temp_buffer + idx, 20, "53R141"); idx += 20; if (idx + 72 > cdb[4]) goto atapi_out; dev->temp_buffer[idx++] = 0x02; dev->temp_buffer[idx++] = 0x01; dev->temp_buffer[idx++] = 0x00; dev->temp_buffer[idx++] = 68; /* Vendor */ ide_padstr8(dev->temp_buffer + idx, 8, EMU_NAME); idx += 8; /* Product */ ide_padstr8(dev->temp_buffer + idx, 40, device_identify_ex); idx += 40; /* Product */ ide_padstr8(dev->temp_buffer + idx, 20, "53R141"); idx += 20; break; default: scsi_disk_log(dev->log, "INQUIRY: Invalid page: %02X\n", cdb[2]); scsi_disk_invalid_field(dev, cdb[2]); scsi_disk_buf_free(dev); return; } } else { preamble_len = 5; size_idx = 4; memset(dev->temp_buffer, 0, 8); if ((cdb[1] & 0xe0) || ((dev->cur_lun > 0x00) && (dev->cur_lun < 0xff))) dev->temp_buffer[0] = 0x7f; /* No physical device on this LUN */ else dev->temp_buffer[0] = 0; /* SCSI HD */ dev->temp_buffer[1] = 0; /* Fixed */ /* SCSI-2 compliant */ dev->temp_buffer[2] = (dev->drv->bus_type == HDD_BUS_SCSI) ? 0x02 : 0x00; dev->temp_buffer[3] = (dev->drv->bus_type == HDD_BUS_SCSI) ? 0x02 : 0x21; dev->temp_buffer[4] = 31; dev->temp_buffer[6] = 1; /* 16-bit transfers supported */ dev->temp_buffer[7] = 0x20; /* Wide bus supported */ /* Vendor */ ide_padstr8(dev->temp_buffer + 8, 8, EMU_NAME); /* Product */ ide_padstr8(dev->temp_buffer + 16, 16, device_identify); /* Revision */ ide_padstr8(dev->temp_buffer + 32, 4, EMU_VERSION_EX); idx = 36; if (max_len == 96) { dev->temp_buffer[4] = 91; idx = 96; } } atapi_out: dev->temp_buffer[size_idx] = idx - preamble_len; len = idx; if (len > max_len) len = max_len; scsi_disk_set_buf_len(dev, BufLen, &len); if (len > *BufLen) len = *BufLen; scsi_disk_set_phase(dev, SCSI_PHASE_DATA_IN); scsi_disk_data_command_finish(dev, len, len, max_len, 0); break; case GPCMD_PREVENT_REMOVAL: scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); scsi_disk_command_complete(dev); break; case GPCMD_SEEK_6: case GPCMD_SEEK_10: switch (cdb[0]) { case GPCMD_SEEK_6: pos = (cdb[2] << 8) | cdb[3]; break; case GPCMD_SEEK_10: pos = (cdb[2] << 24) | (cdb[3] << 16) | (cdb[4] << 8) | cdb[5]; break; default: break; } dev->drv->seek_pos = dev->sector_pos; dev->drv->seek_len = 0; scsi_disk_seek(dev, pos); scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); scsi_disk_command_complete(dev); break; case GPCMD_READ_CDROM_CAPACITY: scsi_disk_buf_alloc(dev, 8); max_len = hdd_image_get_last_sector(dev->id); memset(dev->temp_buffer, 0, 8); dev->temp_buffer[0] = (max_len >> 24) & 0xff; dev->temp_buffer[1] = (max_len >> 16) & 0xff; dev->temp_buffer[2] = (max_len >> 8) & 0xff; dev->temp_buffer[3] = max_len & 0xff; dev->temp_buffer[6] = 2; len = 8; scsi_disk_set_buf_len(dev, BufLen, &len); scsi_disk_set_phase(dev, SCSI_PHASE_DATA_IN); scsi_disk_data_command_finish(dev, len, len, len, 0); break; default: scsi_disk_illegal_opcode(dev, cdb[0]); break; } /* scsi_disk_log(dev->log, "Phase: %02X, request length: %i\n", dev->tf->phase, dev->tf->request_length); */ if ((dev->packet_status == PHASE_COMPLETE) || (dev->packet_status == PHASE_ERROR)) scsi_disk_buf_free(dev); } static void scsi_disk_command_stop(scsi_common_t *sc) { scsi_disk_t *dev = (scsi_disk_t *) sc; scsi_disk_command_complete(dev); scsi_disk_buf_free(dev); } static uint8_t scsi_disk_phase_data_out(scsi_common_t *sc) { scsi_disk_t *dev = (scsi_disk_t *) sc; const uint8_t scsi_bus = (dev->drv->scsi_id >> 4) & 0x0f; const uint8_t scsi_id = dev->drv->scsi_id & 0x0f; const int32_t *BufLen = &scsi_devices[scsi_bus][scsi_id].buffer_length; const uint32_t last_sector = hdd_image_get_last_sector(dev->id); int len = 0; uint8_t error = 0; int ret = 1; int i; uint32_t last_to_write; uint16_t block_desc_len; uint16_t pos; uint16_t param_list_len; uint8_t hdr_len; uint8_t val; if (!*BufLen) scsi_disk_set_phase(dev, SCSI_PHASE_STATUS); else switch (dev->current_cdb[0]) { default: log_fatal(dev->log, "Bad Command for phase 2 (%02X)\n", dev->current_cdb[0]); ret = 0; break; case GPCMD_VERIFY_6: case GPCMD_VERIFY_10: case GPCMD_VERIFY_12: break; case GPCMD_WRITE_6: case GPCMD_WRITE_10: case GPCMD_WRITE_AND_VERIFY_10: case GPCMD_WRITE_12: case GPCMD_WRITE_AND_VERIFY_12: if (dev->requested_blocks > 0) scsi_disk_blocks(dev, &len, 1, 1); break; case GPCMD_WRITE_SAME_10: if (!dev->current_cdb[7] && !dev->current_cdb[8]) last_to_write = last_sector; else last_to_write = dev->sector_pos + dev->sector_len - 1; for (i = dev->sector_pos; i <= (int) last_to_write; i++) { if (dev->current_cdb[1] & 2) { dev->temp_buffer[0] = (i >> 24) & 0xff; dev->temp_buffer[1] = (i >> 16) & 0xff; dev->temp_buffer[2] = (i >> 8) & 0xff; dev->temp_buffer[3] = i & 0xff; } else if (dev->current_cdb[1] & 4) { uint32_t s = (i % dev->drv->spt); uint32_t h = ((i - s) / dev->drv->spt) % dev->drv->hpc; uint32_t c = ((i - s) / dev->drv->spt) / dev->drv->hpc; dev->temp_buffer[0] = (c >> 16) & 0xff; dev->temp_buffer[1] = (c >> 8) & 0xff; dev->temp_buffer[2] = c & 0xff; dev->temp_buffer[3] = h & 0xff; dev->temp_buffer[4] = (s >> 24) & 0xff; dev->temp_buffer[5] = (s >> 16) & 0xff; dev->temp_buffer[6] = (s >> 8) & 0xff; dev->temp_buffer[7] = s & 0xff; } if (hdd_image_write(dev->id, i, 1, dev->temp_buffer) < 0) scsi_disk_write_error(dev); } break; case GPCMD_MODE_SELECT_6: case GPCMD_MODE_SELECT_10: if (dev->current_cdb[0] == GPCMD_MODE_SELECT_10) { hdr_len = 8; param_list_len = dev->current_cdb[7]; param_list_len <<= 8; param_list_len |= dev->current_cdb[8]; } else { hdr_len = 4; param_list_len = dev->current_cdb[4]; } if (dev->drv->bus_type == HDD_BUS_SCSI) { if (dev->current_cdb[0] == GPCMD_MODE_SELECT_6) { block_desc_len = dev->temp_buffer[2]; block_desc_len <<= 8; block_desc_len |= dev->temp_buffer[3]; } else { block_desc_len = dev->temp_buffer[6]; block_desc_len <<= 8; block_desc_len |= dev->temp_buffer[7]; } } else block_desc_len = 0; pos = hdr_len + block_desc_len; while (1) { if (pos >= param_list_len) { scsi_disk_log(dev->log, "Buffer has only block descriptor\n"); break; } const uint8_t page = dev->temp_buffer[pos] & 0x3f; const uint8_t page_len = dev->temp_buffer[pos + 1]; pos += 2; if (!(scsi_disk_mode_sense_page_flags & (1LL << ((uint64_t) page)))) error |= 1; else for (i = 0; i < page_len; i++) { const uint8_t old = dev->ms_pages_saved.pages[page][i + 2]; const uint8_t ch = scsi_disk_mode_sense_pages_changeable.pages[page][i + 2]; val = dev->temp_buffer[pos + i]; if (val != old) { if (ch) dev->ms_pages_saved.pages[page][i + 2] = val; else { scsi_disk_invalid_field_pl(dev, val); error |= 1; } } } pos += page_len; val = scsi_disk_mode_sense_pages_default.pages[page][0] & 0x80; if (dev->do_page_save && val) scsi_disk_mode_sense_save(dev); if (pos >= dev->total_length) break; } if (error) scsi_disk_buf_free(dev); break; } scsi_disk_command_stop((scsi_common_t *) dev); return ret; } static int scsi_disk_get_max(UNUSED(const ide_t *ide), int ide_has_dma, const int type) { int ret; switch (type) { case TYPE_PIO: ret = ide_has_dma ? 4 : 0; break; case TYPE_SDMA: ret = ide_has_dma ? 2 : -1; break; case TYPE_MDMA: ret = ide_has_dma ? 2 : -1; break; case TYPE_UDMA: ret = ide_has_dma ? 5 : -1; break; default: ret = -1; break; } return ret; } static int scsi_disk_get_timings(UNUSED(const ide_t *ide), const int ide_has_dma, const int type) { int ret; switch (type) { case TIMINGS_DMA: ret = ide_has_dma ? 120 : 0; break; case TIMINGS_PIO: ret = ide_has_dma ? 120 : 0; break; case TIMINGS_PIO_FC: ret = 0; break; default: ret = 0; break; } return ret; } /* Fill in ide->buffer with the output of the "IDENTIFY PACKET DEVICE" command */ static void scsi_disk_identify(const ide_t *ide, const int ide_has_dma) { const scsi_disk_t *dev = (scsi_disk_t *) ide->sc; char device_identify[9] = { '8', '6', 'B', '_', 'H', 'D', '0', '0', 0 }; device_identify[7] = dev->id + 0x30; scsi_disk_log(dev->log, "ATAPI Identify: %s\n", device_identify); /* ATAPI device, direct-access device, non-removable media, accelerated DRQ */ ide->buffer[0] = 0x8000 | (0 << 8) | 0x00 | (2 << 5); ide_padstr((char *) (ide->buffer + 10), "", 20); /* Serial Number */ ide_padstr((char *) (ide->buffer + 23), EMU_VERSION_EX, 8); /* Firmware */ ide_padstr((char *) (ide->buffer + 27), device_identify, 40); /* Model */ ide->buffer[49] = 0x200; /* LBA supported */ /* Interpret zero byte count limit as maximum length. */ ide->buffer[126] = 0xfffe; if (ide_has_dma) { ide->buffer[71] = 30; ide->buffer[72] = 30; ide->buffer[80] = 0x7e; /*ATA-1 to ATA-6 supported*/ ide->buffer[81] = 0x19; /*ATA-6 revision 3a supported*/ } } void scsi_disk_hard_reset(void) { scsi_disk_t *dev; for (uint8_t c = 0; c < HDD_NUM; c++) { uint8_t valid = 0; if (hdd[c].bus_type == HDD_BUS_SCSI) { const uint8_t scsi_bus = (hdd[c].scsi_id >> 4) & 0x0f; const uint8_t scsi_id = hdd[c].scsi_id & 0x0f; /* Make sure to ignore any SCSI disk that has an out of range SCSI bus. */ if (scsi_bus >= SCSI_BUS_MAX) continue; /* Make sure to ignore any SCSI disk that has an out of range ID. */ if (scsi_id >= SCSI_ID_MAX) continue; /* Make sure to ignore any SCSI disk whose image file name is empty. */ if (strlen(hdd[c].fn) == 0) continue; /* Make sure to ignore any SCSI disk whose image fails to load. */ if (!hdd_image_load(c)) continue; valid = 1; hdd_preset_apply(c); if (hdd[c].priv == NULL) { hdd[c].priv = (scsi_disk_t *) calloc(1, sizeof(scsi_disk_t)); dev = (scsi_disk_t *) hdd[c].priv; char n[1024] = { 0 }; sprintf(n, "HDD %i SCSI ", c + 1); dev->log = log_open(n); } dev = (scsi_disk_t *) hdd[c].priv; scsi_disk_log(dev->log, "SCSI disk hard_reset drive=%d\n", c); if (dev->tf == NULL) dev->tf = (ide_tf_t *) calloc(1, sizeof(ide_tf_t)); /* SCSI disk, attach to the SCSI bus. */ scsi_device_t *sd = &scsi_devices[scsi_bus][scsi_id]; sd->sc = (scsi_common_t *) dev; sd->command = scsi_disk_command; sd->request_sense = scsi_disk_request_sense_for_scsi; sd->reset = scsi_disk_reset; sd->phase_data_out = scsi_disk_phase_data_out; sd->command_stop = scsi_disk_command_stop; sd->type = SCSI_FIXED_DISK; scsi_disk_log(dev->log, "SCSI disk %i attached to SCSI ID %i\n", c, hdd[c].scsi_id); } else if (hdd[c].bus_type == HDD_BUS_ATAPI) { /* Make sure to ignore any SCSI disk whose image file name is empty. */ if (strlen(hdd[c].fn) == 0) continue; /* Make sure to ignore any SCSI disk whose image fails to load. */ /* ATAPI hard disk, attach to the IDE bus. */ ide_t *id = ide_get_drive(hdd[c].ide_channel); /* If the IDE channel is initialized, we attach to it, otherwise, we do nothing - it's going to be a drive that's not attached to anything. */ if (id) { if (!hdd_image_load(c)) continue; valid = 1; hdd_preset_apply(c); if (hdd[c].priv == NULL) hdd[c].priv = (scsi_disk_t *) calloc(1, sizeof(scsi_disk_t)); dev = (scsi_disk_t *) hdd[c].priv; id->sc = (scsi_common_t *) dev; dev->tf = id->tf; IDE_ATAPI_IS_EARLY = 0; id->get_max = scsi_disk_get_max; id->get_timings = scsi_disk_get_timings; id->identify = scsi_disk_identify; id->stop = NULL; id->packet_command = scsi_disk_command; id->device_reset = scsi_disk_reset; id->phase_data_out = scsi_disk_phase_data_out; id->command_stop = scsi_disk_command_stop; id->bus_master_error = scsi_disk_bus_master_error; id->interrupt_drq = 0; ide_atapi_attach(id); scsi_disk_log(dev->log, "ATAPI hard disk drive %i attached to IDE channel %i\n", c, hdd[c].ide_channel); } } if (valid) { dev = (scsi_disk_t *) hdd[c].priv; dev->id = c; dev->drv = &hdd[c]; dev->cur_lun = SCSI_LUN_USE_CDB; scsi_disk_init(dev); scsi_disk_mode_sense_load(dev); } } } void scsi_disk_close(void) { for (uint8_t c = 0; c < HDD_NUM; c++) { if ((hdd[c].bus_type == HDD_BUS_SCSI) || (hdd[c].bus_type == HDD_BUS_ATAPI)) { if (hdd[c].bus_type == HDD_BUS_SCSI) { const uint8_t scsi_bus = (hdd[c].scsi_id >> 4) & 0x0f; const uint8_t scsi_id = hdd[c].scsi_id & 0x0f; memset(&scsi_devices[scsi_bus][scsi_id], 0x00, sizeof(scsi_device_t)); } hdd_image_close(c); scsi_disk_t *dev = hdd[c].priv; if (dev) { if (dev->tf) free(dev->tf); if (dev->log != NULL) { scsi_disk_log(dev->log, "Log closed\n"); log_close(dev->log); dev->log = NULL; } free(dev); hdd[c].priv = NULL; } } } }