haiku/headers/private/drivers/scsi_cmds.h

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/*
* Copyright 2004-2007, Haiku, Inc. All RightsReserved.
* Copyright 2002/03, Thomas Kurschel. All rights reserved.
*
* Distributed under the terms of the MIT License.
*/
#ifndef _SCSI_CMDS_H
#define _SCSI_CMDS_H
// SCSI commands and their data structures and constants
#include <lendian_bitfield.h>
// always keep in mind that SCSI is big-endian !!!
#define SCSI_STD_TIMEOUT 10
// SCSI device status (as the result of a command)
#define SCSI_STATUS_GOOD (0 << 1)
#define SCSI_STATUS_CHECK_CONDITION (1 << 1) // error occured
#define SCSI_STATUS_CONDITION_MET (2 << 1) // "found" for SEARCH DATA and PREFETCH
#define SCSI_STATUS_BUSY (4 << 1) // try again later (??? == QUEUE_FULL ???)
#define SCSI_STATUS_INTERMEDIATE (8 << 1) // used by linked command only
#define SCSI_STATUS_INTERMEDIATE_COND_MET (10 << 1) // ditto
#define SCSI_STATUS_RESERVATION_CONFLICT (12 << 1) // only if RESERVE/RELEASE is used
#define SCSI_STATUS_COMMAND_TERMINATED (17 << 1) // aborted by TERMINATE I/O PROCESS
#define SCSI_STATUS_QUEUE_FULL (20 << 1) // queue full
#define SCSI_STATUS_MASK 0xfe
// SCSI sense key
#define SCSIS_KEY_NO_SENSE 0
#define SCSIS_KEY_RECOVERED_ERROR 1
#define SCSIS_KEY_NOT_READY 2 // operator intervention may be required
#define SCSIS_KEY_MEDIUM_ERROR 3 // can be set if source could be hardware error
#define SCSIS_KEY_HARDWARE_ERROR 4
#define SCSIS_KEY_ILLEGAL_REQUEST 5 // invalid command
#define SCSIS_KEY_UNIT_ATTENTION 6 // medium changed or target reset
#define SCSIS_KEY_DATA_PROTECT 7 // data access forbidden
#define SCSIS_KEY_BLANK_CHECK 8 // tried to read blank or to write non-blank medium
#define SCSIS_KEY_VENDOR_SPECIFIC 9
#define SCSIS_KEY_COPY_ABORTED 10 // error in COPY or COMPARE command
#define SCSIS_KEY_ABORTED_COMMAND 11 // aborted by target, retry *may* help
#define SCSIS_KEY_EQUAL 12 // during SEARCH: data found
#define SCSIS_KEY_VOLUME_OVERFLOW 13 // tried to write buffered data beyond end of medium
#define SCSIS_KEY_MISCOMPARE 14
#define SCSIS_KEY_RESERVED 15
// SCSI ASC and ASCQ data - (ASC << 8) | ASCQ
// all codes with bit 7 of ASC or ASCQ set are vendor-specific
#define SCSIS_ASC_NO_SENSE 0x0000
#define SCSIS_ASC_IO_PROC_TERMINATED 0x0006
#define SCSIS_ASC_AUDIO_PLAYING 0x0011
#define SCSIS_ASC_AUDIO_PAUSED 0x0012
#define SCSIS_ASC_AUDIO_COMPLETED 0x0013
#define SCSIS_ASC_AUDIO_ERROR 0x0014 // playing has stopped due to error
#define SCSIS_ASC_AUDIO_NO_STATUS 0x0015
#define SCSIS_ASC_NO_INDEX 0x0100 // no index/sector signal
#define SCSIS_ASC_NO_SEEK_CMP 0x0200 // ???
#define SCSIS_ASC_WRITE_FAULT 0x0300
#define SCSIS_ASC_LUN_NOT_READY 0x0400 // LUN not ready, cause not reportable
#define SCSIS_ASC_LUN_BECOMING_READY 0x0401 // LUN in progress of becoming ready
#define SCSIS_ASC_LUN_NEED_INIT 0x0402 // LUN need initializing command
#define SCSIS_ASC_LUN_NEED_MANUAL_HELP 0x0403 // LUN needs manual intervention
#define SCSIS_ASC_LUN_FORMATTING 0x0404 // LUN format in progress
#define SCSIS_ASC_LUN_SEL_FAILED 0x0500 // LUN doesn't respond to selection
#define SCSIS_ASC_LUN_COM_FAILURE 0x0800 // LUN communication failure
#define SCSIS_ASC_LUN_TIMEOUT 0x0801 // LUN communication time-out
#define SCSIS_ASC_LUN_COM_PARITY 0x0802 // LUN communication parity failure
#define SCSIS_ASC_LUN_COM_CRC 0x0803 // LUN communication CRC failure (SCSI-3)
#define SCSIS_ASC_WRITE_ERR_AUTOREALLOC 0x0c01 // recovered by auto-reallocation
#define SCSIS_ASC_WRITE_ERR_AUTOREALLOC_FAILED 0x0c02
#define SCSIS_ASC_ECC_ERROR 0x1000
#define SCSIS_ASC_UNREC_READ_ERR 0x1100 // unrecovered read error
#define SCSIS_ASC_READ_RETRIES_EXH 0x1101 // read retries exhausted
#define SCSIS_ASC_UNREC_READ_ERR_AUTOREALLOC_FAILED 0x1104 // above + auto-reallocate failed
#define SCSIS_ASC_RECORD_NOT_FOUND 0x1401
#define SCSIS_ASC_RANDOM_POS_ERROR 0x1500 // random positioning error
#define SCSIS_ASC_POSITIONING_ERR 0x1501 // mechanical positioning error
#define SCSIS_ASC_POS_ERR_ON_READ 0x1502 // positioning error detected by reading
#define SCSIS_ASC_DATA_RECOV_NO_ERR_CORR 0x1700 // recovered with no error correction applied
#define SCSIS_ASC_DATA_RECOV_WITH_RETRIES 0x1701
#define SCSIS_ASC_DATA_RECOV_POS_HEAD_OFS 0x1702 // ?recovered with positive head offset
#define SCSIS_ASC_DATA_RECOV_NEG_HEAD_OFS 0x1703 // ?recovered with negative head offset
#define SCSIS_ASC_DATA_RECOV_WITH_RETRIES_CIRC 0x1704 // recovered with retries/CIRC
#define SCSIS_ASC_DATA_RECOV_PREV_SECT_ID 0x1705 // recovered using previous sector ID
#define SCSIS_ASC_DATA_RECOV_NO_ECC_AUTOREALLOC 0x1706
#define SCSIS_ASC_DATA_RECOV_NO_ECC_REASSIGN 0x1707 // reassign recommended
#define SCSIS_ASC_DATA_RECOV_NO_ECC_REWRITE 0x1708 // rewrite recommended
#define SCSIS_ASC_DATA_RECOV_WITH_CORR 0x1800 // recovered using error correction
#define SCSIS_ASC_DATA_RECOV_WITH_CORR_RETRIES 0x1801 // used error correction and retries
#define SCSIS_ASC_DATA_RECOV_AUTOREALLOC 0x1802
#define SCSIS_ASC_DATA_RECOV_CIRC 0x1803 // recovered using CIRC
#define SCSIS_ASC_DATA_RECOV_LEC 0x1804 // recovered using LEC
#define SCSIS_ASC_DATA_RECOV_REASSIGN 0x1805 // reassign recommended
#define SCSIS_ASC_DATA_RECOV_REWRITE 0x1806 // rewrite recommended
#define SCSIS_ASC_PARAM_LIST_LENGTH_ERR 0x1a00 // parameter list too short
#define SCSIS_ASC_ID_RECOV 0x1e00 // recoved ID with ECC
#define SCSIS_ASC_INV_OPCODE 0x2000
#define SCSIS_ASC_LBA_OOR 0x2100 // LBA out of range
#define SCSIS_ASC_ILL_FUNCTION 0x2200 // better use 0x2000/0x2400/0x2600 instead
#define SCSIS_ASC_INV_CDB_FIELD 0x2400
#define SCSIS_ASC_LUN_NOT_SUPPORTED 0x2500
#define SCSIS_ASC_INV_PARAM_LIST_FIELD 0x2600
#define SCSIS_ASC_PARAM_NOT_SUPPORTED 0x2601
#define SCSIS_ASC_PARAM_VALUE_INV 0x2602
#define SCSIS_ASC_WRITE_PROTECTED 0x2700
#define SCSIS_ASC_MEDIUM_CHANGED 0x2800
#define SCSIS_ASC_WAS_RESET 0x2900 // reset by power-on/bus reset/device reset
#define SCSIS_ASC_PARAMS_CHANGED 0x2a00
#define SCSIS_ASC_MEDIUM_FORMAT_CORRUPTED 0x3100
#define SCSIS_ASC_ROUNDED_PARAM 0x3700 // parameter got rounded
#define SCSIS_ASC_NO_MEDIUM 0x3a00 // medium not present
#define SCSIS_ASC_INTERNAL_FAILURE 0x4400
#define SCSIS_ASC_SEL_FAILURE 0x4500 // select/reselect failure
#define SCSIS_ASC_UNSUCC_SOFT_RESET 0x4600 // unsuccessful soft reset
#define SCSIS_ASC_SCSI_PARITY_ERR 0x4700 // SCSI parity error
#define SCSIS_ASC_LOAD_EJECT_FAILED 0x5300 // media load or eject failed
#define SCSIS_ASC_REMOVAL_PREVENTED 0x5302 // medium removal prevented
#define SCSIS_ASC_REMOVAL_REQUESTED 0x5a01 // operator requests medium removal
// some scsi op-codes
#define SCSI_OP_TEST_UNIT_READY 0x00
#define SCSI_OP_REQUEST_SENSE 0x03
#define SCSI_OP_FORMAT 0x04
#define SCSI_OP_READ_6 0x08
#define SCSI_OP_WRITE_6 0x0a
#define SCSI_OP_INQUIRY 0x12
#define SCSI_OP_MODE_SELECT_6 0x15
#define SCSI_OP_RESERVE 0x16
#define SCSI_OP_RELEASE 0x17
#define SCSI_OP_MODE_SENSE_6 0x1a
#define SCSI_OP_START_STOP 0x1b
#define SCSI_OP_RECEIVE_DIAGNOSTIC 0x1c
#define SCSI_OP_SEND_DIAGNOSTIC 0x1d
#define SCSI_OP_PREVENT_ALLOW 0x1e
#define SCSI_OP_READ_CAPACITY 0x25
#define SCSI_OP_READ_10 0x28
#define SCSI_OP_WRITE_10 0x2a
#define SCSI_OP_POSITION_TO_ELEMENT 0x2b
#define SCSI_OP_VERIFY 0x2f
#define SCSI_OP_SYNCHRONIZE_CACHE 0x35
#define SCSI_OP_WRITE_BUFFER 0x3b
#define SCSI_OP_READ_BUFFER 0x3c
#define SCSI_OP_CHANGE_DEFINITION 0x40
#define SCSI_OP_READ_SUB_CHANNEL 0x42
#define SCSI_OP_READ_TOC 0x43
#define SCSI_OP_PLAY_MSF 0x47
#define SCSI_OP_PLAY_AUDIO_TRACK_INDEX 0x48 // obsolete, spec missing
#define SCSI_OP_PAUSE_RESUME 0x4b
#define SCSI_OP_STOP_PLAY 0x4e
#define SCSI_OP_MODE_SELECT_10 0x55
#define SCSI_OP_MODE_SENSE_10 0x5A
#define SCSI_OP_MOVE_MEDIUM 0xa5
#define SCSI_OP_READ_12 0xa8
#define SCSI_OP_WRITE_12 0xaa
#define SCSI_OP_READ_ELEMENT_STATUS 0xb8
#define SCSI_OP_SCAN 0xba
#define SCSI_OP_READ_CD 0xbe
// INQUIRY
typedef struct scsi_cmd_inquiry {
uint8 opcode;
LBITFIELD8_3(
evpd : 1, // enhanced vital product data
_res1_1 : 4,
lun : 3
);
uint8 page_code;
uint8 _res3;
uint8 allocation_length;
uint8 control;
} _PACKED scsi_cmd_inquiry;
typedef struct scsi_res_inquiry {
LBITFIELD8_2(
device_type : 5,
device_qualifier : 3
);
LBITFIELD8_2(
device_type_modifier : 7, // obsolete, normally set to zero
removable_medium : 1
);
LBITFIELD8_3( // 0 always means "not conforming"
ansi_version : 3, // 1 for SCSI-1, 2 for SCSI-2 etc.
ecma_version : 3,
iso_version : 2
);
LBITFIELD8_4(
response_data_format : 4, // 2 = SCSI/2 compliant
_res3_4 : 2,
term_iop : 1, // 1 = supports TERMINATE I/O PROCESS
async_enc : 1 // processor devices only :
// Asynchronous Event Notification Capable
);
uint8 additional_length; // total (whished) length = this + 4
uint8 _res5;
uint8 _res6;
LBITFIELD8_8(
soft_reset : 1, // 0 = soft reset leads to hard reset
cmd_queue : 1, // 1 = supports tagged command queuing
_res7_2 : 1,
linked : 1, // 1 = supports linked commands
sync : 1, // 1 = supports synchronous transfers
write_bus16 : 1, // 1 = supports 16 bit transfers
write_bus32 : 1, // 1 = supports 32 bit transfers
relative_address : 1 // 1 = supports relative addr. for linking
);
char vendor_ident[8];
char product_ident[16];
char product_rev[4];
// XPT doesn't return following data on XPT_GDEV_TYPE
uint8 vendor_spec[20];
uint8 _res56[2];
uint16 version_descriptor[8]; // array of supported standards, big endian
uint8 _res74[22];
/* additional vendor specific data */
} _PACKED scsi_res_inquiry;
enum scsi_peripheral_qualifier {
scsi_periph_qual_connected = 0,
scsi_periph_qual_not_connected = 2,
scsi_periph_qual_not_connectable = 3
// value 1 is reserved, values of 4 and above are vendor-specific
};
enum scsi_device_type {
scsi_dev_direct_access = 0,
scsi_dev_sequential_access = 1,
scsi_dev_printer = 2,
scsi_dev_processor = 3,
scsi_dev_WORM = 4,
scsi_dev_CDROM = 5,
scsi_dev_scanner = 6,
scsi_dev_optical = 7,
scsi_dev_medium_changer = 8,
scsi_dev_communication = 9,
// 0xa - 0xb are graphics arts pre-press devices
// 0xc - 0x1e reserved
scsi_dev_storage_array = 0xc,
scsi_dev_enclosure_services = 0xd,
scsi_dev_simplified_direct_access = 0xe,
scsi_dev_optical_card = 0xf,
scsi_dev_unknown = 0x1f // used for scsi_periph_qual_not_connectable
};
// vital product data: unit serial number page
#define SCSI_PAGE_USN 0x80
typedef struct scsi_page_usn {
LBITFIELD8_2(
device_type : 5,
device_qualifier : 3
);
uint8 page_code;
uint8 _res2;
uint8 _page_length; // total size = this + 3
char psn[1]; // size according to page_length
} _PACKED scsi_page_usn;
// READ CAPACITY
typedef struct scsi_cmd_read_capacity {
uint8 opcode;
LBITFIELD8_3(
relative_address : 1, // relative address
_res1_1 : 4,
lun : 3
);
uint32 lba;
uint8 _res6[2];
LBITFIELD8_2(
pmi : 1, // partial medium indicator
_res8_1 : 7
);
uint8 control;
} _PACKED scsi_cmd_read_capacity;
typedef struct scsi_res_read_capacity {
uint32 lba; // big endian
uint32 block_size; // in bytes
} _PACKED scsi_res_read_capacity;
// READ (6), WRITE (6)
typedef struct scsi_cmd_rw_6 {
uint8 opcode;
LBITFIELD8_2(
high_lba : 5,
lun : 3
);
uint8 mid_lba;
uint8 low_lba;
uint8 length; // 0 = 256 blocks
uint8 control;
} _PACKED scsi_cmd_rw_6;
// READ (10), WRITE (10)
typedef struct scsi_cmd_rw_10 {
uint8 opcode;
LBITFIELD8_5(
relative_address : 1, // relative address
_res1_1 : 2,
force_unit_access : 1, // force unit access (1 = safe, cacheless access)
disable_page_out : 1, // disable page out (1 = not worth caching)
lun : 3
);
uint32 lba; // big endian
uint8 _res6;
uint16 length; // 0 = no block
uint8 control;
} _PACKED scsi_cmd_rw_10;
// READ (12), WRITE (12)
typedef struct scsi_cmd_rw_12 {
uint8 opcode;
LBITFIELD8_5(
relative_address : 1, // relative address
_res1_1 : 2,
force_unit_access : 1, // force unit access (1 = safe, cacheless access)
disable_page_out : 1, // disable page out (1 = not worth caching)
lun : 3
);
uint32 lba; // big endian
uint32 length; // 0 = no block
uint8 _res10;
uint8 control;
} _PACKED scsi_cmd_rw_12;
// REQUEST SENSE
typedef struct scsi_cmd_request_sense {
uint8 opcode;
LBITFIELD8_2(
_res1_0 : 5,
lun : 3
);
uint8 _res2[2];
uint8 allocation_length;
uint8 control;
} _PACKED scsi_cmd_request_sense;
// sense data structures
#define SCSIS_CURR_ERROR 0x70
#define SCSIS_DEFERRED_ERROR 0x71
typedef struct scsi_sense {
LBITFIELD8_2(
error_code : 7,
valid : 1 // 0 = not conforming to standard
);
uint8 segment_number; // for COPY/COPY AND VERIFY/COMPARE
LBITFIELD8_5(
sense_key : 4,
res2_4 : 1,
ILI : 1, // incorrect length indicator - req. block
// length doesn't match physical block length
EOM : 1, // serial devices only
Filemark : 1 // optional for random access
);
uint8 highest_inf; // device-type or command specific
uint8 high_inf; // device-type 0, 4, 5, 7: block address
uint8 mid_inf; // device-type 1, 2, 3: req length - act. length
uint8 low_inf; // (and others for sequential dev. and COPY cmds
uint8 add_sense_length; // total length = this + 7
uint8 highest_cmd_inf;
uint8 high_cmd_inf;
uint8 mid_cmd_inf;
uint8 low_cmd_inf;
uint8 asc;
uint8 ascq; // this can be zero if unsupported
uint8 unit_code; // != 0 to specify internal device unit
union {
struct {
LBITFIELD8_2(
high_key_spec : 7,
SKSV : 1 // 1 = sense key specific (byte 15-17) valid
);
uint8 mid_key_spec;
uint8 low_key_spec;
} raw;
// ILLEGAL REQUEST
struct {
LBITFIELD8_5(
bit_pointer : 3, // points to (highest) invalid bit of parameter
BPV : 1, // 1 = bit_pointer is valid
res15_4 : 2,
c_d : 2, // 1 = error command, 0 = error in data
SKSV : 1 // s.a.
);
uint8 high_field_pointer; // points to (highest) invalid byte of parameter
uint8 low_field_pointer; // (!using big endian, this means the first byte!)
} ill_request;
// access error (RECOVERED, HARDWARE or MEDIUM ERROR)
struct {
LBITFIELD8_2(
res15_0 : 7,
SKSV : 1
);
uint8 high_retry_cnt;
uint8 low_retry_cnt;
} acc_error;
// format progress (if sense key = NOT READY)
struct {
LBITFIELD8_2(
res15_0 : 7,
SKSV : 1
);
uint16 progress; // 0 = start, 0xffff = almost finished
} format_progress;
} sense_key_spec;
// starting with offset 18 there are additional sense byte
} _PACKED scsi_sense;
// PREVENT ALLOW
typedef struct scsi_cmd_prevent_allow {
uint8 opcode;
LBITFIELD8_2(
_res1_0 : 5,
lun : 3
);
uint8 _res2[2];
LBITFIELD8_2(
prevent : 1, // 1 - prevent medium removal, 0 - allow removal
_res4_1 : 7
);
uint8 control;
} _PACKED scsi_cmd_prevent_allow;
// START STOP UNIT
typedef struct scsi_cmd_ssu {
uint8 opcode;
LBITFIELD8_3(
immediately : 1, // 1 - return immediately, 0 - return on completion
_res1_1 : 4,
lun : 3
);
uint8 res2[2];
LBITFIELD8_3(
start : 1, // 1 - load+start, i.e. allow, 0 - eject+stop, i.e. deny
load_eject : 1, // 1 - include loading/ejecting, 0 - only to allow/deny
_res4_2 : 6
);
uint8 control;
} _PACKED scsi_cmd_ssu;
// MODE SELECT (6)
typedef struct scsi_cmd_mode_select_6 {
uint8 opcode;
LBITFIELD8_4(
save_pages : 1, // 1 = save pages to non-volatile memory
_res1_1 : 3,
pf : 1, // 0 = old SCSI-1; 1 = new SCSI-2 format
lun : 3
);
uint8 _res2[2];
uint8 param_list_length; // data size
uint8 control;
} _PACKED scsi_cmd_mode_select_6;
// MODE SENSE (6)
typedef struct scsi_cmd_mode_sense_6 {
uint8 opcode;
LBITFIELD8_4(
_res1_0 : 3,
disable_block_desc : 1, // disable block descriptors
_res1_4 : 1,
lun : 3
);
LBITFIELD8_2(
page_code : 6,
page_control : 2 // page control field
);
uint8 _res3;
uint8 allocation_length; // maximum amount of data
uint8 control;
} _PACKED scsi_cmd_mode_sense_6;
// MODE SELECT (10)
typedef struct scsi_cmd_mode_select_10 {
uint8 opcode;
LBITFIELD8_4(
save_pages : 1, // 1 = save pages to non-volatile memory
_res1_1 : 3,
pf : 1, // 0 = old SCSI-1; 1 = new SCSI-2 format
lun : 3
);
uint8 _res2[5];
uint16 param_list_length; // data size, big endian
uint8 control;
} _PACKED scsi_cmd_mode_select_10;
// MODE SENSE (10)
typedef struct scsi_cmd_mode_sense_10 {
uint8 opcode;
LBITFIELD8_4(
_res1_0 : 3,
disable_block_desc : 1, // disable block descriptors
_res1_4 : 1,
lun : 3
);
LBITFIELD8_2(
page_code : 6,
page_control : 2 // page control field
);
uint8 _res3[4];
uint16 allocation_length; // maximum amount of data, big endian
uint8 control;
} _PACKED scsi_cmd_mode_sense_10;
// possible contents of page control (PC)
#define SCSI_MODE_SENSE_PC_CURRENT 0
#define SCSI_MODE_SENSE_PC_CHANGABLE 1
// changable field are filled with "1"
#define SCSI_MODE_SENSE_PC_DEFAULT 2
#define SCSI_MODE_SENSE_PC_SAVED 3
// special mode page indicating to return all mode pages
#define SCSI_MODEPAGE_ALL 0x3f
// header of mode data; followed by block descriptors and mode pages
typedef struct scsi_mode_param_header_6 {
uint8 mode_data_length; // total length excluding this byte
uint8 medium_type;
uint8 dev_spec_parameter;
uint8 block_desc_length; // total length of all transmitted block descriptors
} _PACKED scsi_mode_param_header_6;
typedef struct scsi_mode_param_header_10 {
uint16 mode_data_length; // total length excluding these two bytes
uint8 medium_type;
uint8 dev_spec_parameter;
uint8 _res4[2];
uint16 block_desc_length; // total length of all transmitted block descriptors
} _PACKED scsi_mode_param_header_10;
// content of dev_spec_parameter for direct access devices
typedef struct scsi_mode_param_dev_spec_da {
LBITFIELD8_4(
_res0_0 : 4,
dpo_fua : 1, // 1 = supports DPO and FUA, see READ (10) (sense only)
_res0_6 : 1,
write_protected : 1 // write protected (sense only)
);
} _PACKED scsi_mode_param_dev_spec_da;
typedef struct scsi_mode_param_block_desc {
uint8 density; // density code of area
uint8 high_numblocks; // size of this area in blocks
uint8 med_numblocks; // 0 = all remaining blocks
uint8 low_numblocks;
uint8 _res4;
uint8 high_blocklen; // block size
uint8 med_blocklen;
uint8 low_blocklen;
} _PACKED scsi_mode_param_block_desc;
// header of a mode pages
typedef struct scsi_modepage_header {
LBITFIELD8_3(
page_code : 6,
_res0_6 : 1,
PS : 1 // 1 = page can be saved (only valid for MODE SENSE)
);
uint8 page_length; // size of page excluding this common header
} _PACKED scsi_modepage_header;
// control mode page
#define SCSI_MODEPAGE_CONTROL 0xa
typedef struct scsi_modepage_control {
scsi_modepage_header header;
LBITFIELD8_2(
RLEC : 1, // Report Log Exception Condition
res2_1 : 7
);
LBITFIELD8_4(
DQue : 1, // disable Queuing
QErr : 1, // abort queued commands on contingent allegiance condition
res3_2 : 2,
QAM : 4 // Queue Algorithm Modifier
);
LBITFIELD8_5(
EAENP : 1, // error AEN permission; true = send AEN on deferred error
// false = generate UA condition after deferred error
UAAENP : 1, // unit attention AEN permission; true = send AEN,
// false = generate UA condition (for everything but init.)
RAENP : 1, // ready AEN permission; true = send async event notification
// (AEN) instead of generating an Unit Attention (UA) Condition
// after initialization
res4_3 : 4,
EECA : 1 // enable Extended Contingent Allegiance
);
uint8 res5;
uint8 high_AEN_holdoff; // ready AEN hold off period - delay in ms between
uint8 low_AEN_holdoff; // initialization and AEN
} scsi_modepage_control;
// values for QAM
#define SCSI_QAM_RESTRICTED 0
#define SCSI_QAM_UNRESTRICTED 1
// 2 - 7 reserved, 8 - 0xf vendor-specific
// CD audio control page
#define SCSI_MODEPAGE_AUDIO 0xe
typedef struct scsi_modepage_audio {
scsi_modepage_header header;
LBITFIELD8_4(
_res2_0 : 1,
stop_on_track_crossing : 1, // Stop On Track Crossing
// 0 - stop according transfer length, 1 - stop at end of track
immediately : 1, // must be one
_res2_3 : 5
);
uint8 _res3[3];
uint8 _obsolete6[2];
struct {
LBITFIELD8_2(
channel : 4, // select channel to connect to this port
_res0_4 : 4
);
uint8 volume;
} ports[4];
} _PACKED scsi_modepage_audio;
// connection between output port and audio channel
#define SCSI_CHANNEL_SEL_MUTED 0 // mute port
#define SCSI_CHANNEL_SEL_CHANNEL0 1 // connect to channel 0
#define SCSI_CHANNEL_SEL_CHANNEL1 2 // connect to channel 1
#define SCSI_CHANNEL_SEL_CHANNEL0_1 3 // connect to channel 0 and channel 1
#define SCSI_CHANNEL_SEL_CHANNEL2 4 // connect to channel 2
#define SCSI_CHANNEL_SEL_CHANNEL3 8 // connect to channel 3
// TUR
typedef struct scsi_cmd_tur {
uint8 opcode;
LBITFIELD8_2(
_res1_0 : 5,
lun : 3
);
uint8 _res3[3];
uint8 control;
} _PACKED scsi_cmd_tur;
// READ_TOC
typedef struct scsi_cmd_read_toc {
uint8 opcode;
LBITFIELD8_4(
_res1_0 : 1,
time : 1, // true, to use MSF format, false for LBA format
_res1_2 : 3,
lun : 3
);
LBITFIELD8_2(
format : 4, // see below
_res2_4 : 4
);
uint8 _res3[3];
uint8 track; // (starting) track
uint16 allocation_length; // maximum amount of data (big endian)
uint8 control;
} _PACKED scsi_cmd_read_toc;
// values of <format> in TOC command
#define SCSI_TOC_FORMAT_TOC 0 // all TOCs starting with <track> (0xaa for lead-out)
#define SCSI_TOC_FORMAT_SESSION_INFO 1 // Session info
#define SCSI_TOC_FORMAT_FULL_TOC 2 // all Q-channel data in TOC
#define SCSI_TOC_FORMAT_PMA 3 // Q-channel data in PMA area
#define SCSI_TOC_FORMAT_ATIP 4 // get ATIP data
#define SCSI_TOC_FORMAT_CD_TEXT 5 // get CD-Text from R/W-channel in lead-in
// general structure of response
typedef struct scsi_toc_general {
uint16 data_length; // big endian, total length - 2
uint8 first; // first track/session/reserved
uint8 last; // last one
// remainder are parameter list descriptors
} _PACKED scsi_toc_general;
// definition of CD-ROM LBA
typedef uint32 scsi_cd_lba; // big endian
// definition of CD-ROM MSF time
typedef struct scsi_cd_msf {
uint8 _reserved;
uint8 minute;
uint8 second;
uint8 frame;
} _PACKED scsi_cd_msf;
// definition of Track Number address format
typedef struct scsi_cd_track_number {
uint8 _res0[3];
uint8 track;
} _PACKED scsi_cd_track_number;
// one track for SCSI_TOC_FORMAT_TOC
typedef struct scsi_toc_track {
uint8 _res0;
LBITFIELD8_2(
control : 4,
adr : 4
);
uint8 track_number; // track number (hex)
uint8 _res3;
union { // start of track (time or LBA, see TIME of command)
scsi_cd_lba lba;
scsi_cd_msf time;
} start;
} _PACKED scsi_toc_track;
// possible value of ADR-field (described Q-channel content)
enum scsi_adr {
scsi_adr_none = 0, // no Q-channel mode info
scsi_adr_position = 1, // Q-channel encodes current position data
scsi_adr_mcn = 2, // Q-channel encodes Media Catalog Number
scsi_adr_isrc = 3 // Q-channel encodes ISRC
};
// value of Q-channel control field (CONTROL)
enum scsi_q_control {
scsi_q_control_2audio = 0, // stereo audio
scsi_q_control_2audio_preemp = 1, // stereo audio with 50/15µs pre-emphasis
scsi_q_control_1audio = 8, // audio (reserved in CD-R/W)
scsi_q_control_1audio_preemp = 9, // audio with pre-emphasis (reserved in CD-R/W)
scsi_q_control_data_un_intr = 4, // data, recorded un-interrupted
scsi_q_control_data_incr = 5, // data, recorded incremental
scsi_q_control_ddcd = 4, // DDCD data
scsi_q_control_copy_perm = 2 // copy permitted (or-ed with value above)
};
// format SCSI_TOC_FORMAT_TOC
typedef struct scsi_toc_toc {
uint16 data_length; // big endian, total length - 2
uint8 first_track; // first track
uint8 last_track; // last track
scsi_toc_track tracks[1]; // one entry per track
} _PACKED scsi_toc_toc;
// READ SUB-CHANNEL
typedef struct scsi_cmd_read_subchannel {
uint8 opcode;
LBITFIELD8_4(
_res1_0 : 1,
time : 1, // true, to use MSF format, false for LBA format
_res1_2 : 3,
lun : 3
);
LBITFIELD8_3(
_res2_0 : 6,
subq : 1, // 1 - return Q sub-channel data
_res2_7 : 1
);
uint8 parameter_list; // see below
uint8 _res4[2];
uint8 track; // track number (hex)
uint16 allocation_length; // maximum amount of data, big endian
uint8 control;
} _PACKED scsi_cmd_read_subchannel;
// values of parameter_list
enum scsi_sub_channel_parameter_list {
scsi_sub_channel_parameter_list_cd_pos = 1, // CD current position
scsi_sub_channel_parameter_list_mcn = 2, // Media Catalog Number
scsi_sub_channel_parameter_list_isrc = 3 // Track International Standard Recording Code
};
// header of response
typedef struct scsi_subchannel_data_header {
uint8 _res0;
uint8 audio_status; // see below
uint16 data_length; // total length - 4, big endian
} _PACKED scsi_subchannel_data_header;
// possible audio_status
enum scsi_audio_status {
scsi_audio_status_not_supported = 0,
scsi_audio_status_playing = 0x11,
scsi_audio_status_paused = 0x12,
scsi_audio_status_completed = 0x13,
scsi_audio_status_error_stop = 0x14,
scsi_audio_status_no_status = 0x15
};
typedef struct scsi_cd_current_position {
uint8 format_code; // always 1
LBITFIELD8_2(
control : 4, // see scsi_q_control
adr : 4 // see scsi_adr
);
uint8 track;
uint8 index;
union { // current position, relative to logical beginning
scsi_cd_lba lba;
scsi_cd_msf time;
} absolute_address;
union { // current position, relative to track
scsi_cd_lba lba;
scsi_cd_msf time;
} track_relative_address;
} _PACKED scsi_cd_current_position;
// PLAY AUDIO MSF
typedef struct scsi_cmd_play_msf {
uint8 opcode;
LBITFIELD8_2(
_res1_0 : 5,
lun : 3
);
uint8 _res2;
uint8 start_minute; // start time
uint8 start_second;
uint8 start_frame;
uint8 end_minute; // end time (excluding)
uint8 end_second;
uint8 end_frame;
uint8 control;
} _PACKED scsi_cmd_play_msf;
// STOP AUDIO
typedef struct scsi_cmd_stop_play {
uint8 opcode;
LBITFIELD8_2(
_res1_0 : 5,
lun : 3
);
uint8 _res2[7];
uint8 control;
} _PACKED scsi_cmd_stop_play;
// PAUSE/RESUME
typedef struct scsi_cmd_pause_resume {
uint8 opcode;
LBITFIELD8_2(
_res1_0 : 5,
lun : 3
);
uint8 _res2[6];
LBITFIELD8_2(
resume : 1, // 1 for resume, 0 for pause
_res8_2 : 7
);
uint8 control;
} _PACKED scsi_cmd_pause_resume;
// SCAN
typedef struct scsi_cmd_scan {
uint8 opcode;
LBITFIELD8_4(
relative_address : 1, // must be zero
_res1_1 : 3,
direct : 1, // direction: 0 forward, 1 backward
lun : 3
);
union { // start of track (depends on <type>)
scsi_cd_lba lba;
scsi_cd_msf time;
scsi_cd_track_number track_number;
} start;
uint8 _res6[3];
LBITFIELD8_2(
res9_0 : 6,
type : 2 // actual type of <start> (see below)
);
uint8 _res10;
uint8 control;
} _PACKED scsi_cmd_scan;
// possible values for type
enum scsi_scan_type {
scsi_scan_lba = 0,
scsi_scan_msf = 1,
scsi_scan_tno = 2
};
// READ_CD
typedef struct scsi_cmd_read_cd {
uint8 opcode;
LBITFIELD8_4(
relative_address : 1, // must be zero
_res1_1 : 1,
sector_type : 3, // required sector type (1=CDDA)
lun : 3
);
scsi_cd_lba lba;
uint8 high_length;
uint8 mid_length;
uint8 low_length;
LBITFIELD8_6(
_res9_0 : 1,
error_field : 2,
edc_ecc : 1, // include EDC/ECC; includes 8 byte padding for Mode 1 format
user_data : 1, // if 1, include user data
// (mode select block size is ignored)
header_code : 2,
sync : 1 // if 1, include sync field from sector
);
LBITFIELD8_2(
sub_channel_selection : 4,
_res10_4 : 4
);
uint8 control;
} _PACKED scsi_cmd_read_cd;
// possible values for header_code
enum scsi_read_cd_header_code {
scsi_read_cd_header_none = 0,
scsi_read_cd_header_hdr_only = 1,
scsi_read_cd_header_sub_header_only = 2,
scsi_read_cd_header_all_headers = 3,
};
// possible values for error_field
enum scsi_read_cd_error_field {
scsi_read_cd_error_none = 0,
scsi_read_cd_error_c2_error = 1, // include 2352 bits indicating error in byte
scsi_read_cd_error_c2_and_block_error = 2, // include or of C2 data plus pad byte
};
// possible values for sub_channel_selection
enum scsi_read_cd_sub_channel_selection {
scsi_read_cd_sub_channel_none = 0,
scsi_read_cd_sub_channel_RAW = 1,
scsi_read_cd_sub_channel_Q = 2,
scsi_read_cd_sub_channel_P_W = 4 // R/W data, depending on CD capabilities
// and Mechanism status page
};
// SYNCHRONIZE CACHE (10)
typedef struct scsi_cmd_sync_cache {
uint8 opcode;
LBITFIELD8_4(
relative_address : 1, // must be zero
immediately : 1, // 1 - return immediately, 0 - return on completion
_res1_1 : 3,
lun : 3
);
scsi_cd_lba lba;
uint8 _res2;
uint16 block_count; // big endian
uint8 control;
} _PACKED scsi_cmd_sync_cache;
#endif /* _SCSI_CMDS_H */