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86Box/src/include/86box/scsi_device.h
TC1995 4008010131 Big SCSI bus update of the day, NCR 5380 too (January 20th, 2025) 
1. Separate the SCSI bus functions from NCR 5380 into true general purpose SCSI bus functions, allowing use of future legacy scsi controllers.
2. Corrected NCR 5380 chip period for the SCSI controllers based on that chip so that CD-ROM speed is correct enough per speed tests and no more breakage (I hope, report if they are still there, please!) on desyncs.
3. A NCR 5380 software reset involves asserting an IRQ.
2025-01-20 19:55:18 +01:00

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/*
* 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.
*
* This file is part of the 86Box distribution.
*
* Definitions for the generic SCSI device command handler.
*
*
*
* Authors: Miran Grca, <mgrca8@gmail.com>
* Fred N. van Kempen, <decwiz@yahoo.com>
*
* Copyright 2016-2019 Miran Grca.
* Copyright 2017-2019 Fred N. van Kempen.
*/
#ifndef SCSI_DEVICE_H
#define SCSI_DEVICE_H
/* Configuration. */
#define SCSI_LUN_USE_CDB 0xff
#ifdef WALTJE
# define SCSI_TIME 50.0
#else
# define SCSI_TIME 500.0
#endif
/* Bits of 'status' */
#define ERR_STAT 0x01
#define DRQ_STAT 0x08 /* Data request */
#define DSC_STAT 0x10
#define SERVICE_STAT 0x10
#define READY_STAT 0x40
#define BUSY_STAT 0x80
/* Bits of 'error' */
#define ABRT_ERR 0x04 /* Command aborted */
#define MCR_ERR 0x08 /* Media change request */
/* SCSI commands. */
#define GPCMD_TEST_UNIT_READY 0x00
#define GPCMD_REZERO_UNIT 0x01
#define GPCMD_REQUEST_SENSE 0x03
#define GPCMD_FORMAT_UNIT 0x04
#define GPCMD_IOMEGA_SENSE 0x06
#define GPCMD_READ_6 0x08
#define GPCMD_WRITE_6 0x0a
#define GPCMD_SEEK_6 0x0b
#define GPCMD_IOMEGA_SET_PROTECTION_MODE 0x0c
#define GPCMD_IOMEGA_EJECT 0x0d /* ATAPI only? */
#define GPCMD_NO_OPERATION_TOSHIBA 0x0d /* Toshiba Vendor Unique command */
#define GPCMD_NO_OPERATION_NEC 0x0d /* NEC Vendor Unique command */
#define GPCMD_INQUIRY 0x12
#define GPCMD_VERIFY_6 0x13
#define GPCMD_MODE_SELECT_6 0x15
#define GPCMD_SCSI_RESERVE 0x16
#define GPCMD_SCSI_RELEASE 0x17
#define GPCMD_MODE_SENSE_6 0x1a
#define GPCMD_START_STOP_UNIT 0x1b
#define GPCMD_SEND_DIAGNOSTIC 0x1d
#define GPCMD_PREVENT_REMOVAL 0x1e
#define GPCMD_READ_FORMAT_CAPACITIES 0x23
#define GPCMD_READ_CDROM_CAPACITY 0x25
#define GPCMD_UNKNOWN_CHINON 0x26 /*Chinon Vendor Unique command*/
#define GPCMD_READ_10 0x28
#define GPCMD_READ_GENERATION 0x29
#define GPCMD_WRITE_10 0x2a
#define GPCMD_SEEK_10 0x2b
#define GPCMD_ERASE_10 0x2c
#define GPCMD_WRITE_AND_VERIFY_10 0x2e
#define GPCMD_VERIFY_10 0x2f
#define GPCMD_READ_BUFFER 0x3c
#define GPCMD_WRITE_SAME_10 0x41
#define GPCMD_READ_SUBCHANNEL 0x42
#define GPCMD_READ_TOC_PMA_ATIP 0x43
#define GPCMD_READ_HEADER 0x44
#define GPCMD_PLAY_AUDIO_10 0x45
#define GPCMD_GET_CONFIGURATION 0x46
#define GPCMD_PLAY_AUDIO_MSF 0x47
#define GPCMD_PLAY_AUDIO_TRACK_INDEX 0x48
#define GPCMD_PLAY_AUDIO_TRACK_RELATIVE_10 0x49
#define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
#define GPCMD_PAUSE_RESUME 0x4b
#define GPCMD_STOP_PLAY_SCAN 0x4e
#define GPCMD_READ_DISC_INFORMATION 0x51
#define GPCMD_READ_TRACK_INFORMATION 0x52
#define GPCMD_MODE_SELECT_10 0x55
#define GPCMD_MODE_SENSE_10 0x5a
#define GPCMD_PLAY_AUDIO_12 0xa5
#define GPCMD_READ_12 0xa8
#define GPCMD_PLAY_AUDIO_TRACK_RELATIVE_12 0xa9
#define GPCMD_WRITE_12 0xaa
#define GPCMD_ERASE_12 0xac
#define GPCMD_READ_DVD_STRUCTURE 0xad /* For reading. */
#define GPCMD_WRITE_AND_VERIFY_12 0xae
#define GPCMD_VERIFY_12 0xaf
#define GPCMD_PLAY_CD_OLD 0xb4
#define GPCMD_READ_CD_OLD 0xb8 /* Should be equivalent to 0xbe */
#define GPCMD_READ_CD_MSF 0xb9
#define GPCMD_AUDIO_SCAN 0xba
#define GPCMD_SET_SPEED 0xbb
#define GPCMD_PLAY_CD 0xbc /* At some point, this was READ CD, according to the
ATAPI specification */
#define GPCMD_MECHANISM_STATUS 0xbd
#define GPCMD_READ_CD 0xbe
#define GPCMD_SEND_DVD_STRUCTURE 0xbf /* This is for writing only, irrelevant to 86Box. */
#define GPCMD_EJECT_CHINON 0xc0 /* Chinon Vendor Unique command */
#define GPCMD_AUDIO_TRACK_SEARCH_TOSHIBA 0xc0 /* Toshiba Vendor Unique command */
#define GPCMD_SET_ADDRESS_FORMAT_SONY 0xc0 /* Sony Vendor Unique command */
#define GPCMD_MAGAZINE_EJECT_PIONEER 0xc0 /* Pioneer Vendor Unique command */
#define GPCMD_PLAY_AUDIO_TOSHIBA 0xc1 /* Toshiba Vendor Unique command */
#define GPCMD_READ_TOC_SONY 0xc1 /* Sony Vendor Unique command */
#define GPCMD_READ_TOC_PIONEER 0xc1 /* Pioneer Vendor Unique command */
#define GPCMD_PAUSE_RESUME_ALT 0xc2
#define GPCMD_READ_SUBCHANNEL_MATSUSHITA 0xc2 /* Matsushita Vendor Unique command */
#define GPCMD_READ_SUBCHANNEL_SONY 0xc2 /* Sony Vendor Unique command */
#define GPCMD_STILL_TOSHIBA 0xc2 /* Toshiba Vendor Unique command */
#define GPCMD_READ_SUBCODEQ_PIONEER 0xc2 /* Pioneer Vendor Unique command */
#define GPCMD_READ_TOC_MATSUSHITA 0xc3 /* Matsushita Vendor Unique command */
#define GPCMD_READ_HEADER_SONY 0xc3 /* Sony Vendor Unique command */
#define GPCMD_SET_STOP_TIME_TOSHIBA 0xc3 /* Toshiba Vendor Unique command */
#define GPCMD_READ_HEADER_MATSUSHITA 0xc4 /* Matsushita Vendor Unique command */
#define GPCMD_PLAYBACK_STATUS_SONY 0xc4 /* Sony Vendor Unique command */
#define GPCMD_CADDY_EJECT_TOSHIBA 0xc4 /* Toshiba Vendor Unique command */
#define GPCMD_PAUSE_SONY 0xc5 /* Sony Vendor Unique command */
#define GPCMD_PLAY_AUDIO_MATSUSHITA 0xc5 /* Matsushita Vendor Unique command */
#define GPCMD_UNKNOWN_SCSI2_NEC 0xc5 /* NEC Vendor Unique Command */
#define GPCMD_STOP_CHINON 0xc6 /* Chinon Vendor Unique command */
#define GPCMD_PLAY_TRACK_SONY 0xc6 /* Sony Vendor Unique command */
#define GPCMD_READ_SUBCODEQ_PLAYING_STATUS_TOSHIBA 0xc6 /* Toshiba Vendor Unique command */
#define GPCMD_PLAY_AUDIO_MSF_MATSUSHITA 0xc7 /* Matsushita Vendor Unique command*/
#define GPCMD_PLAY_MSF_SONY 0xc7 /* Sony Vendor Unique command*/
#define GPCMD_READ_DISC_INFORMATION_TOSHIBA 0xc7 /* Toshiba Vendor Unique command */
#define GPCMD_PLAY_AUDIO_TRACK_INDEX_MATSUSHITA 0xc8 /* Matsushita Vendor Unique command */
#define GPCMD_PLAY_AUDIO_SONY 0xc8 /* Sony Vendor Unique command */
#define GPCMD_AUDIO_TRACK_SEARCH_PIONEER 0xc8 /* Pioneer Vendor Unique command */
#define GPCMD_PLAY_AUDIO_TRACK_RELATIVE_10_MATSUSHITA 0xc9 /* Matsushita Vendor Unique command */
#define GPCMD_PLAYBACK_CONTROL_SONY 0xc9 /* Sony Vendor Unique command */
#define GPCMD_PLAY_AUDIO_PIONEER 0xc9 /* Pioneer Vendor Unique command */
#define GPCMD_PAUSE_PIONEER 0xca /* Pioneer Vendor Unique command */
#define GPCMD_PAUSE_RESUME_MATSUSHITA 0xcb /* Matsushita Vendor Unique command */
#define GPCMD_STOP_PIONEER 0xcb /* Pioneer Vendor Unique command */
#define GPCMD_PLAYBACK_STATUS_PIONEER 0xcc /* Pioneer Vendor Unique command */
#define GPCMD_SCAN_PIONEER 0xcd /* Should be equivalent to 0xba */
#define GPCMD_READ_CD_MSF_OLD 0xd5 /* Should be equivalent to 0xb9 */
#define GPCMD_AUDIO_TRACK_SEARCH_NEC 0xd8 /* NEC Vendor Unique command */
#define GPCMD_PLAY_AUDIO_NEC 0xd9 /* NEC Vendor Unique command */
#define GPCMD_STILL_NEC 0xda /* NEC Vendor Unique command */
#define GPCMD_SET_SPEED_ALT 0xda /* Should be equivalent to 0xbb */
#define GPCMD_SET_STOP_TIME_NEC 0xdb /* NEC Vendor Unique command */
#define GPCMD_CADDY_EJECT_NEC 0xdc /* NEC Vendor Unique command */
#define GPCMD_READ_SUBCODEQ_PLAYING_STATUS_NEC 0xdd /* NEC Vendor Unique command */
#define GPCMD_READ_DISC_INFORMATION_NEC 0xde /* NEC Vendor Unique command */
#define GPCMD_DRIVE_STATUS_PIONEER 0xe0 /* Pioneer Vendor Unique command */
#define GPCMD_PLAY_AUDIO_12_MATSUSHITA 0xe5 /* Matsushita Vendor Unique command */
#define GPCMD_PLAY_AUDIO_TRACK_RELATIVE_12_MATSUSHITA 0xe9 /* Matsushita Vendor Unique command */
/* Mode page codes for mode sense/set */
#define GPMODE_UNIT_ATN_PAGE 0x00
#define GPMODE_R_W_ERROR_PAGE 0x01
#define GPMODE_DISCONNECT_PAGE 0x02 /* Disconnect/reconnect page */
#define GPMODE_FORMAT_DEVICE_PAGE 0x03
#define GPMODE_RIGID_DISK_PAGE 0x04 /* Rigid disk geometry page */
#define GPMODE_FLEXIBLE_DISK_PAGE 0x05
#define GPMODE_CACHING_PAGE 0x08
#define GPMODE_CDROM_PAGE_SONY 0x08
#define GPMODE_CDROM_AUDIO_PAGE_SONY 0x09
#define GPMODE_CDROM_PAGE 0x0d
#define GPMODE_CDROM_AUDIO_PAGE 0x0e
#define GPMODE_CAPABILITIES_PAGE 0x2a
#define GPMODE_IOMEGA_PAGE 0x2f
#define GPMODE_UNK_VENDOR_PAGE 0x30
#define GPMODE_ALL_PAGES 0x3f
/* Mode page codes for presence */
#define GPMODEP_UNIT_ATN_PAGE 0x0000000000000001LL
#define GPMODEP_R_W_ERROR_PAGE 0x0000000000000002LL
#define GPMODEP_DISCONNECT_PAGE 0x0000000000000004LL
#define GPMODEP_FORMAT_DEVICE_PAGE 0x0000000000000008LL
#define GPMODEP_RIGID_DISK_PAGE 0x0000000000000010LL
#define GPMODEP_FLEXIBLE_DISK_PAGE 0x0000000000000020LL
#define GPMODEP_CACHING_PAGE 0x0000000000000100LL
#define GPMODEP_CDROM_PAGE_SONY 0x0000000000000100LL
#define GPMODEP_CDROM_AUDIO_PAGE_SONY 0x0000000000000200LL
#define GPMODEP_CDROM_PAGE 0x0000000000002000LL
#define GPMODEP_CDROM_AUDIO_PAGE 0x0000000000004000LL
#define GPMODEP_CAPABILITIES_PAGE 0x0000040000000000LL
#define GPMODEP_IOMEGA_PAGE 0x0000800000000000LL
#define GPMODEP_UNK_VENDOR_PAGE 0x0001000000000000LL
#define GPMODEP_ALL_PAGES 0x8000000000000000LL
/* SCSI Status Codes */
#define SCSI_STATUS_OK 0
#define SCSI_STATUS_CHECK_CONDITION 2
/* SCSI Sense Keys */
#define SENSE_NONE 0
#define SENSE_NOT_READY 2
#define SENSE_MEDIUM_ERROR 3
#define SENSE_ILLEGAL_REQUEST 5
#define SENSE_UNIT_ATTENTION 6
/* SCSI Additional Sense Codes */
#define ASC_NONE 0x00
#define ASC_AUDIO_PLAY_OPERATION 0x00
#define ASC_NOT_READY 0x04
#define ASC_WRITE_ERROR 0x0c
#define ASC_UNRECOVERED_READ_ERROR 0x11
#define ASC_ILLEGAL_OPCODE 0x20
#define ASC_LBA_OUT_OF_RANGE 0x21
#define ASC_INV_FIELD_IN_CMD_PACKET 0x24
#define ASC_INV_LUN 0x25
#define ASC_INV_FIELD_IN_PARAMETER_LIST 0x26
#define ASC_WRITE_PROTECTED 0x27
#define ASC_MEDIUM_MAY_HAVE_CHANGED 0x28
#define ASC_CAPACITY_DATA_CHANGED 0x2A
#define ASC_INCOMPATIBLE_FORMAT 0x30
#define ASC_MEDIUM_NOT_PRESENT 0x3a
#define ASC_DATA_PHASE_ERROR 0x4b
#define ASC_ILLEGAL_MODE_FOR_THIS_TRACK 0x64
#define ASCQ_NONE 0x00
#define ASCQ_UNIT_IN_PROCESS_OF_BECOMING_READY 0x01
#define ASCQ_INITIALIZING_COMMAND_REQUIRED 0x02
#define ASCQ_CIRC_UNRECOVERED_ERROR 0x06
#define ASCQ_CAPACITY_DATA_CHANGED 0x09
#define ASCQ_AUDIO_PLAY_OPERATION_IN_PROGRESS 0x11
#define ASCQ_AUDIO_PLAY_OPERATION_PAUSED 0x12
#define ASCQ_AUDIO_PLAY_OPERATION_COMPLETED 0x13
/* Tell RISC OS that we have a 4x CD-ROM drive (600kb/sec data, 706kb/sec raw).
Not that it means anything */
#define CDROM_SPEED 706 /* 0x2C2 */
#define BUFFER_SIZE (256 * 1024)
#define RW_DELAY (TIMER_USEC * 500)
/* Some generally useful CD-ROM information */
#define CD_MINS 90 /* max. minutes per CD */
#define CD_SECS 60 /* seconds per minute */
#define CD_FRAMES 75 /* frames per second */
#define CD_FRAMESIZE 2048 /* bytes per frame, "cooked" mode */
#define CD_MAX_BYTES (CD_MINS * CD_SECS * CD_FRAMES * CD_FRAMESIZE)
#define CD_MAX_SECTORS (CD_MAX_BYTES / 2048)
/* Event notification classes for GET EVENT STATUS NOTIFICATION */
#define GESN_NO_EVENTS 0
#define GESN_OPERATIONAL_CHANGE 1
#define GESN_POWER_MANAGEMENT 2
#define GESN_EXTERNAL_REQUEST 3
#define GESN_MEDIA 4
#define GESN_MULTIPLE_HOSTS 5
#define GESN_DEVICE_BUSY 6
/* Event codes for MEDIA event status notification */
#define MEC_NO_CHANGE 0
#define MEC_EJECT_REQUESTED 1
#define MEC_NEW_MEDIA 2
#define MEC_MEDIA_REMOVAL 3 /* only for media changers */
#define MEC_MEDIA_CHANGED 4 /* only for media changers */
#define MEC_BG_FORMAT_COMPLETED 5 /* MRW or DVD+RW b/g format completed */
#define MEC_BG_FORMAT_RESTARTED 6 /* MRW or DVD+RW b/g format restarted */
#define MS_TRAY_OPEN 1
#define MS_MEDIA_PRESENT 2
/*
* The MMC values are not IDE specific and might need to be moved
* to a common header if they are also needed for the SCSI emulation
*/
/* Profile list from MMC-6 revision 1 table 91 */
#define MMC_PROFILE_NONE 0x0000
#define MMC_PROFILE_CD_ROM 0x0008
#define MMC_PROFILE_CD_R 0x0009
#define MMC_PROFILE_CD_RW 0x000A
#define MMC_PROFILE_DVD_ROM 0x0010
#define MMC_PROFILE_DVD_R_SR 0x0011
#define MMC_PROFILE_DVD_RAM 0x0012
#define MMC_PROFILE_DVD_RW_RO 0x0013
#define MMC_PROFILE_DVD_RW_SR 0x0014
#define MMC_PROFILE_DVD_R_DL_SR 0x0015
#define MMC_PROFILE_DVD_R_DL_JR 0x0016
#define MMC_PROFILE_DVD_RW_DL 0x0017
#define MMC_PROFILE_DVD_DDR 0x0018
#define MMC_PROFILE_DVD_PLUS_RW 0x001A
#define MMC_PROFILE_DVD_PLUS_R 0x001B
#define MMC_PROFILE_DVD_PLUS_RW_DL 0x002A
#define MMC_PROFILE_DVD_PLUS_R_DL 0x002B
#define MMC_PROFILE_BD_ROM 0x0040
#define MMC_PROFILE_BD_R_SRM 0x0041
#define MMC_PROFILE_BD_R_RRM 0x0042
#define MMC_PROFILE_BD_RE 0x0043
#define MMC_PROFILE_HDDVD_ROM 0x0050
#define MMC_PROFILE_HDDVD_R 0x0051
#define MMC_PROFILE_HDDVD_RAM 0x0052
#define MMC_PROFILE_HDDVD_RW 0x0053
#define MMC_PROFILE_HDDVD_R_DL 0x0058
#define MMC_PROFILE_HDDVD_RW_DL 0x005A
#define MMC_PROFILE_INVALID 0xFFFF
#define EARLY_ONLY 64
#define SCSI_ONLY 32
#define ATAPI_ONLY 16
#define IMPLEMENTED 8
#define NONDATA 4
#define CHECK_READY 2
#define ALLOW_UA 1
#define MSFtoLBA(m, s, f) ((((m * 60) + s) * 75) + f)
#define MSG_COMMAND_COMPLETE 0x00
#define BUS_DBP 0x01
#define BUS_SEL 0x02
#define BUS_IO 0x04
#define BUS_CD 0x08
#define BUS_MSG 0x10
#define BUS_REQ 0x20
#define BUS_BSY 0x40
#define BUS_RST 0x80
#define BUS_ACK 0x100
#define BUS_ATN 0x200
#define BUS_ARB 0x8000
#define BUS_SETDATA(val) ((uint32_t) val << 16)
#define BUS_GETDATA(val) ((val >> 16) & 0xff)
#define BUS_DATAMASK 0xff0000
#define BUS_IDLE (1 << 31)
#define STATE_IDLE 0
#define STATE_COMMAND 1
#define STATE_DATAIN 2
#define STATE_DATAOUT 3
#define STATE_STATUS 4
#define STATE_MESSAGEIN 5
#define STATE_SELECT 6
#define STATE_MESSAGEOUT 7
#define STATE_MESSAGE_ID 8
#define PIO_TX_BUS 0
#define DMA_IN_TX_BUS 1
#define DMA_OUT_TX_BUS 2
#define PHASE_IDLE 0x00
#define PHASE_COMMAND 0x01
#define PHASE_DATA_IN 0x02
#define PHASE_DATA_OUT 0x03
#define PHASE_DATA_IN_DMA 0x04
#define PHASE_DATA_OUT_DMA 0x05
#define PHASE_COMPLETE 0x06
#define PHASE_ERROR 0x80
#define PHASE_NONE 0xff
#define SCSI_PHASE_DATA_OUT 0
#define SCSI_PHASE_DATA_IN BUS_IO
#define SCSI_PHASE_COMMAND BUS_CD
#define SCSI_PHASE_STATUS (BUS_CD | BUS_IO)
#define SCSI_PHASE_MESSAGE_OUT (BUS_MSG | BUS_CD)
#define SCSI_PHASE_MESSAGE_IN (BUS_MSG | BUS_CD | BUS_IO)
#define MODE_SELECT_PHASE_IDLE 0
#define MODE_SELECT_PHASE_HEADER 1
#define MODE_SELECT_PHASE_BLOCK_DESC 2
#define MODE_SELECT_PHASE_PAGE_HEADER 3
#define MODE_SELECT_PHASE_PAGE 4
typedef struct mode_sense_pages_t {
uint8_t pages[0x40][0x40];
} mode_sense_pages_t;
/* This is so we can access the common elements to all SCSI device structs
without knowing the device type. */
typedef struct scsi_common_s {
mode_sense_pages_t ms_pages_saved;
void * priv;
#ifdef EMU_IDE_H
ide_tf_t *tf;
#else
void * tf;
#endif
uint8_t *temp_buffer;
uint8_t atapi_cdb[16]; /* This is atapi_cdb in ATAPI-supporting devices,
and pad in SCSI-only devices. */
uint8_t current_cdb[16];
uint8_t sense[256];
uint8_t id;
uint8_t cur_lun;
uint8_t pad0;
uint8_t pad1;
uint16_t max_transfer_len;
uint16_t pad2;
int requested_blocks;
int packet_status;
int total_length;
int do_page_save;
int unit_attention;
int request_pos;
int old_len;
int media_status;
uint32_t sector_pos;
uint32_t sector_len;
uint32_t packet_len;
double callback;
uint8_t (*ven_cmd)(void *sc, uint8_t *cdb, int32_t *BufLen);
} scsi_common_t;
typedef struct scsi_device_t {
int32_t buffer_length;
uint8_t status;
uint8_t phase;
uint16_t type;
scsi_common_t *sc;
void (*command)(scsi_common_t *sc, uint8_t *cdb);
void (*request_sense)(scsi_common_t *sc, uint8_t *buffer, uint8_t alloc_length);
void (*reset)(scsi_common_t *sc);
uint8_t (*phase_data_out)(scsi_common_t *sc);
void (*command_stop)(scsi_common_t *sc);
} scsi_device_t;
typedef struct scsi_bus_t {
int tx_mode;
int clear_req;
int wait_data;
int wait_complete;
int bus_out;
int bus_in;
int command_pos;
int command_issued;
int data_pos;
int msgout_pos;
int is_msgout;
int state;
int dma_on_pio_enabled;
uint8_t data;
uint8_t msglun;
uint8_t data_wait;
uint8_t command[16];
uint8_t msgout[4];
uint8_t target_id;
uint8_t bus_device;
uint32_t bus_phase;
double period;
double speed;
double divider;
double multi;
void *priv;
void (*timer)(void *priv, double period);
} scsi_bus_t;
/* These are based on the INQUIRY values. */
#define SCSI_NONE 0x0060
#define SCSI_FIXED_DISK 0x0000
#define SCSI_REMOVABLE_DISK 0x8000
#define SCSI_REMOVABLE_CDROM 0x8005
#ifdef EMU_SCSI_H
extern scsi_device_t scsi_devices[SCSI_BUS_MAX][SCSI_ID_MAX];
#endif /* EMU_SCSI_H */
extern int cdrom_add_error_and_subchannel(uint8_t *b, int real_sector_type);
extern int cdrom_LBAtoMSF_accurate(void);
extern int mode_select_init(uint8_t command, uint16_t pl_length, uint8_t do_save);
extern int mode_select_terminate(int force);
extern int mode_select_write(uint8_t val);
extern uint8_t *scsi_device_sense(scsi_device_t *dev);
extern double scsi_device_get_callback(scsi_device_t *dev);
extern void scsi_device_request_sense(scsi_device_t *dev, uint8_t *buffer,
uint8_t alloc_length);
extern void scsi_device_reset(scsi_device_t *dev);
extern int scsi_device_present(scsi_device_t *dev);
extern int scsi_device_valid(scsi_device_t *dev);
extern int scsi_device_cdb_length(scsi_device_t *dev);
extern void scsi_device_command_phase0(scsi_device_t *dev, uint8_t *cdb);
extern void scsi_device_command_phase1(scsi_device_t *dev);
extern void scsi_device_command_stop(scsi_device_t *dev);
extern void scsi_device_identify(scsi_device_t *dev, uint8_t lun);
extern void scsi_device_close_all(void);
extern void scsi_device_init(void);
extern void scsi_reset(void);
extern uint8_t scsi_get_bus(void);
extern int scsi_bus_read(scsi_bus_t *scsi_bus);
extern void scsi_bus_update(scsi_bus_t *scsi_bus, int bus);
extern void scsi_bus_set_speed(uint8_t bus, double speed);
extern double scsi_bus_get_speed(uint8_t bus);
#endif /*SCSI_DEVICE_H*/
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