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freebsd/sys/cam/scsi/scsi_cd.h
Nate Lawson 76ba4ecdad * Add CDRIOC{READ,WRITE}SPEED ioctls to cd(4). Units are in KB/sec.
* Change atapi-cd ioctls to use the same units.
* Change burncd, cdcontrol to convert CDROM speed to KB/sec before
calling the ioctl.  Add a "max" speed option for their command lines.

This change does not break ABI but does change the units passed through
the ioctl so 3rd party software that uses cdrio.h will have to convert
(most likely by multiplying CDROM speed by 177 to get KB/s).

PR:		kern/36845
Submitted by:	Philipp Mergenthaler <p@i609a.hadiko.de> (CAM ioctls)
Reviewed by:	sos, ken
MFC after:	1 month
2002-10-18 22:03:39 +00:00

725 lines
17 KiB
C

/*-
* Copyright (c) 2000 Kenneth D. Merry
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/*
* Written by Julian Elischer (julian@tfs.com)
* for TRW Financial Systems.
*
* TRW Financial Systems, in accordance with their agreement with Carnegie
* Mellon University, makes this software available to CMU to distribute
* or use in any manner that they see fit as long as this message is kept with
* the software. For this reason TFS also grants any other persons or
* organisations permission to use or modify this software.
*
* TFS supplies this software to be publicly redistributed
* on the understanding that TFS is not responsible for the correct
* functioning of this software in any circumstances.
*
* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
*
* from: scsi_cd.h,v 1.10 1997/02/22 09:44:28 peter Exp $
* $FreeBSD$
*/
#ifndef _SCSI_SCSI_CD_H
#define _SCSI_SCSI_CD_H 1
/*
* Define two bits always in the same place in byte 2 (flag byte)
*/
#define CD_RELADDR 0x01
#define CD_MSF 0x02
/*
* SCSI command format
*/
struct scsi_pause
{
u_int8_t op_code;
u_int8_t byte2;
u_int8_t unused[6];
u_int8_t resume;
u_int8_t control;
};
#define PA_PAUSE 1
#define PA_RESUME 0
struct scsi_play_msf
{
u_int8_t op_code;
u_int8_t byte2;
u_int8_t unused;
u_int8_t start_m;
u_int8_t start_s;
u_int8_t start_f;
u_int8_t end_m;
u_int8_t end_s;
u_int8_t end_f;
u_int8_t control;
};
struct scsi_play_track
{
u_int8_t op_code;
u_int8_t byte2;
u_int8_t unused[2];
u_int8_t start_track;
u_int8_t start_index;
u_int8_t unused1;
u_int8_t end_track;
u_int8_t end_index;
u_int8_t control;
};
struct scsi_play_10
{
u_int8_t op_code;
u_int8_t byte2;
u_int8_t blk_addr[4];
u_int8_t unused;
u_int8_t xfer_len[2];
u_int8_t control;
};
struct scsi_play_12
{
u_int8_t op_code;
u_int8_t byte2; /* same as above */
u_int8_t blk_addr[4];
u_int8_t xfer_len[4];
u_int8_t unused;
u_int8_t control;
};
struct scsi_play_rel_12
{
u_int8_t op_code;
u_int8_t byte2; /* same as above */
u_int8_t blk_addr[4];
u_int8_t xfer_len[4];
u_int8_t track;
u_int8_t control;
};
struct scsi_read_header
{
u_int8_t op_code;
u_int8_t byte2;
u_int8_t blk_addr[4];
u_int8_t unused;
u_int8_t data_len[2];
u_int8_t control;
};
struct scsi_read_subchannel
{
u_int8_t op_code;
u_int8_t byte1;
u_int8_t byte2;
#define SRS_SUBQ 0x40
u_int8_t subchan_format;
u_int8_t unused[2];
u_int8_t track;
u_int8_t data_len[2];
u_int8_t control;
};
struct scsi_read_toc
{
u_int8_t op_code;
u_int8_t byte2;
u_int8_t unused[4];
u_int8_t from_track;
u_int8_t data_len[2];
u_int8_t control;
};
struct scsi_read_cd_capacity
{
u_int8_t op_code;
u_int8_t byte2;
u_int8_t addr_3; /* Most Significant */
u_int8_t addr_2;
u_int8_t addr_1;
u_int8_t addr_0; /* Least Significant */
u_int8_t unused[3];
u_int8_t control;
};
struct scsi_set_speed
{
u_int8_t opcode;
u_int8_t byte2;
u_int8_t readspeed[2];
u_int8_t writespeed[2];
u_int8_t reserved[5];
u_int8_t control;
};
struct scsi_report_key
{
u_int8_t opcode;
u_int8_t reserved0;
u_int8_t lba[4];
u_int8_t reserved1[2];
u_int8_t alloc_len[2];
u_int8_t agid_keyformat;
#define RK_KF_AGID_MASK 0xc0
#define RK_KF_AGID_SHIFT 6
#define RK_KF_KEYFORMAT_MASK 0x3f
#define RK_KF_AGID 0x00
#define RK_KF_CHALLENGE 0x01
#define RF_KF_KEY1 0x02
#define RK_KF_KEY2 0x03
#define RF_KF_TITLE 0x04
#define RF_KF_ASF 0x05
#define RK_KF_RPC_SET 0x06
#define RF_KF_RPC_REPORT 0x08
#define RF_KF_INV_AGID 0x3f
u_int8_t control;
};
/*
* See the report key structure for key format and AGID definitions.
*/
struct scsi_send_key
{
u_int8_t opcode;
u_int8_t reserved[7];
u_int8_t param_len[2];
u_int8_t agid_keyformat;
u_int8_t control;
};
struct scsi_read_dvd_structure
{
u_int8_t opcode;
u_int8_t reserved;
u_int8_t address[4];
u_int8_t layer_number;
u_int8_t format;
#define RDS_FORMAT_PHYSICAL 0x00
#define RDS_FORMAT_COPYRIGHT 0x01
#define RDS_FORMAT_DISC_KEY 0x02
#define RDS_FORMAT_BCA 0x03
#define RDS_FORMAT_MANUFACTURER 0x04
#define RDS_FORMAT_CMGS_CPM 0x05
#define RDS_FORMAT_PROT_DISCID 0x06
#define RDS_FORMAT_DISC_KEY_BLOCK 0x07
#define RDS_FORMAT_DDS 0x08
#define RDS_FORMAT_DVDRAM_MEDIA_STAT 0x09
#define RDS_FORMAT_SPARE_AREA 0x0a
#define RDS_FORMAT_RMD_BORDEROUT 0x0c
#define RDS_FORMAT_RMD 0x0d
#define RDS_FORMAT_LEADIN 0x0e
#define RDS_FORMAT_DISC_ID 0x0f
#define RDS_FORMAT_DCB 0x30
#define RDS_FORMAT_WRITE_PROT 0xc0
#define RDS_FORMAT_STRUCTURE_LIST 0xff
u_int8_t alloc_len[2];
u_int8_t agid;
u_int8_t control;
};
/*
* Opcodes
*/
#define READ_CD_CAPACITY 0x25 /* slightly different from disk */
#define READ_SUBCHANNEL 0x42 /* cdrom read Subchannel */
#define READ_TOC 0x43 /* cdrom read TOC */
#define READ_HEADER 0x44 /* cdrom read header */
#define PLAY_10 0x45 /* cdrom play 'play audio' mode */
#define PLAY_MSF 0x47 /* cdrom play Min,Sec,Frames mode */
#define PLAY_TRACK 0x48 /* cdrom play track/index mode */
#define PLAY_TRACK_REL 0x49 /* cdrom play track/index mode */
#define PAUSE 0x4b /* cdrom pause in 'play audio' mode */
#define SEND_KEY 0xa3 /* dvd send key command */
#define REPORT_KEY 0xa4 /* dvd report key command */
#define PLAY_12 0xa5 /* cdrom pause in 'play audio' mode */
#define PLAY_TRACK_REL_BIG 0xa9 /* cdrom play track/index mode */
#define READ_DVD_STRUCTURE 0xad /* read dvd structure */
#define SET_CD_SPEED 0xbb /* set c/dvd speed */
struct scsi_report_key_data_header
{
u_int8_t data_len[2];
u_int8_t reserved[2];
};
struct scsi_report_key_data_agid
{
u_int8_t data_len[2];
u_int8_t reserved[5];
u_int8_t agid;
#define RKD_AGID_MASK 0xc0
#define RKD_AGID_SHIFT 6
};
struct scsi_report_key_data_challenge
{
u_int8_t data_len[2];
u_int8_t reserved0[2];
u_int8_t challenge_key[10];
u_int8_t reserved1[2];
};
struct scsi_report_key_data_key1_key2
{
u_int8_t data_len[2];
u_int8_t reserved0[2];
u_int8_t key1[5];
u_int8_t reserved1[3];
};
struct scsi_report_key_data_title
{
u_int8_t data_len[2];
u_int8_t reserved0[2];
u_int8_t byte0;
#define RKD_TITLE_CPM 0x80
#define RKD_TITLE_CPM_SHIFT 7
#define RKD_TITLE_CP_SEC 0x40
#define RKD_TITLE_CP_SEC_SHIFT 6
#define RKD_TITLE_CMGS_MASK 0x30
#define RKD_TITLE_CMGS_SHIFT 4
#define RKD_TITLE_CMGS_NO_RST 0x00
#define RKD_TITLE_CMGS_RSVD 0x10
#define RKD_TITLE_CMGS_1_GEN 0x20
#define RKD_TITLE_CMGS_NO_COPY 0x30
u_int8_t title_key[5];
u_int8_t reserved1[2];
};
struct scsi_report_key_data_asf
{
u_int8_t data_len[2];
u_int8_t reserved[5];
u_int8_t success;
#define RKD_ASF_SUCCESS 0x01
};
struct scsi_report_key_data_rpc
{
u_int8_t data_len[2];
u_int8_t rpc_scheme0;
#define RKD_RPC_SCHEME_UNKNOWN 0x00
#define RKD_RPC_SCHEME_PHASE_II 0x01
u_int8_t reserved0;
u_int8_t byte4;
#define RKD_RPC_TYPE_MASK 0xC0
#define RKD_RPC_TYPE_SHIFT 6
#define RKD_RPC_TYPE_NONE 0x00
#define RKD_RPC_TYPE_SET 0x40
#define RKD_RPC_TYPE_LAST_CHANCE 0x80
#define RKD_RPC_TYPE_PERM 0xC0
#define RKD_RPC_VENDOR_RESET_MASK 0x38
#define RKD_RPC_VENDOR_RESET_SHIFT 3
#define RKD_RPC_USER_RESET_MASK 0x07
#define RKD_RPC_USER_RESET_SHIFT 0
u_int8_t region_mask;
u_int8_t rpc_scheme1;
u_int8_t reserved1;
};
struct scsi_send_key_data_rpc
{
u_int8_t data_len[2];
u_int8_t reserved0[2];
u_int8_t region_code;
u_int8_t reserved1[3];
};
/*
* Common header for the return data from the READ DVD STRUCTURE command.
*/
struct scsi_read_dvd_struct_data_header
{
u_int8_t data_len[2];
u_int8_t reserved[2];
};
struct scsi_read_dvd_struct_data_layer_desc
{
u_int8_t book_type_version;
#define RDSD_BOOK_TYPE_DVD_ROM 0x00
#define RDSD_BOOK_TYPE_DVD_RAM 0x10
#define RDSD_BOOK_TYPE_DVD_R 0x20
#define RDSD_BOOK_TYPE_DVD_RW 0x30
#define RDSD_BOOK_TYPE_DVD_PRW 0x90
#define RDSD_BOOK_TYPE_MASK 0xf0
#define RDSD_BOOK_TYPE_SHIFT 4
#define RDSD_BOOK_VERSION_MASK 0x0f
/*
* The lower 4 bits of this field is referred to as the "minimum
* rate" field in MMC2, and the "maximum rate" field in MMC3. Ugh.
*/
u_int8_t disc_size_max_rate;
#define RDSD_DISC_SIZE_120MM 0x00
#define RDSD_DISC_SIZE_80MM 0x10
#define RDSD_DISC_SIZE_MASK 0xf0
#define RDSD_DISC_SIZE_SHIFT 4
#define RDSD_MAX_RATE_0252 0x00
#define RDSD_MAX_RATE_0504 0x01
#define RDSD_MAX_RATE_1008 0x02
#define RDSD_MAX_RATE_NOT_SPEC 0x0f
#define RDSD_MAX_RATE_MASK 0x0f
u_int8_t layer_info;
#define RDSD_NUM_LAYERS_MASK 0x60
#define RDSD_NUM_LAYERS_SHIFT 5
#define RDSD_NL_ONE_LAYER 0x00
#define RDSD_NL_TWO_LAYERS 0x20
#define RDSD_TRACK_PATH_MASK 0x10
#define RDSD_TRACK_PATH_SHIFT 4
#define RDSD_TP_PTP 0x00
#define RDSD_TP_OTP 0x10
#define RDSD_LAYER_TYPE_RO 0x01
#define RDSD_LAYER_TYPE_RECORD 0x02
#define RDSD_LAYER_TYPE_RW 0x04
#define RDSD_LAYER_TYPE_MASK 0x0f
u_int8_t density;
#define RDSD_LIN_DENSITY_0267 0x00
#define RDSD_LIN_DENSITY_0293 0x10
#define RDSD_LIN_DENSITY_0409_0435 0x20
#define RDSD_LIN_DENSITY_0280_0291 0x40
/* XXX MMC2 uses 0.176um/bit instead of 0.353 as in MMC3 */
#define RDSD_LIN_DENSITY_0353 0x80
#define RDSD_LIN_DENSITY_MASK 0xf0
#define RDSD_LIN_DENSITY_SHIFT 4
#define RDSD_TRACK_DENSITY_074 0x00
#define RDSD_TRACK_DENSITY_080 0x01
#define RDSD_TRACK_DENSITY_0615 0x02
#define RDSD_TRACK_DENSITY_MASK 0x0f
u_int8_t zeros0;
u_int8_t main_data_start[3];
#define RDSD_MAIN_DATA_START_DVD_RO 0x30000
#define RDSD_MAIN_DATA_START_DVD_RW 0x31000
u_int8_t zeros1;
u_int8_t main_data_end[3];
u_int8_t zeros2;
u_int8_t end_sector_layer0[3];
u_int8_t bca;
#define RDSD_BCA 0x80
#define RDSD_BCA_MASK 0x80
#define RDSD_BCA_SHIFT 7
u_int8_t media_specific[2031];
};
struct scsi_read_dvd_struct_data_physical
{
u_int8_t data_len[2];
u_int8_t reserved[2];
struct scsi_read_dvd_struct_data_layer_desc layer_desc;
};
struct scsi_read_dvd_struct_data_copyright
{
u_int8_t data_len[2];
u_int8_t reserved0[2];
u_int8_t cps_type;
#define RDSD_CPS_NOT_PRESENT 0x00
#define RDSD_CPS_DATA_EXISTS 0x01
u_int8_t region_info;
u_int8_t reserved1[2];
};
struct scsi_read_dvd_struct_data_disc_key
{
u_int8_t data_len[2];
u_int8_t reserved[2];
u_int8_t disc_key[2048];
};
struct scsi_read_dvd_struct_data_bca
{
u_int8_t data_len[2];
u_int8_t reserved[2];
u_int8_t bca_info[188]; /* XXX 12-188 bytes */
};
struct scsi_read_dvd_struct_data_manufacturer
{
u_int8_t data_len[2];
u_int8_t reserved[2];
u_int8_t manuf_info[2048];
};
struct scsi_read_dvd_struct_data_copy_manage
{
u_int8_t data_len[2];
u_int8_t reserved0[2];
u_int8_t byte4;
#define RDSD_CPM_NO_COPYRIGHT 0x00
#define RDSD_CPM_HAS_COPYRIGHT 0x80
#define RDSD_CPM_MASK 0x80
#define RDSD_CMGS_COPY_ALLOWED 0x00
#define RDSD_CMGS_ONE_COPY 0x20
#define RDSD_CMGS_NO_COPIES 0x30
#define RDSD_CMGS_MASK 0x30
u_int8_t reserved1[3];
};
struct scsi_read_dvd_struct_data_prot_discid
{
u_int8_t data_len[2];
u_int8_t reserved[2];
u_int8_t prot_discid_data[16];
};
struct scsi_read_dvd_struct_data_disc_key_blk
{
/*
* Length is 0x6ffe == 28670 for CPRM, 0x3002 == 12990 for CSS2.
*/
u_int8_t data_len[2];
u_int8_t reserved;
u_int8_t total_packs;
u_int8_t disc_key_pack_data[28668];
};
struct scsi_read_dvd_struct_data_dds
{
u_int8_t data_len[2];
u_int8_t reserved[2];
u_int8_t dds_info[2048];
};
struct scsi_read_dvd_struct_data_medium_status
{
u_int8_t data_len[2];
u_int8_t reserved0[2];
u_int8_t byte4;
#define RDSD_MS_CARTRIDGE 0x80
#define RDSD_MS_OUT 0x40
#define RDSD_MS_MSWI 0x08
#define RDSD_MS_CWP 0x04
#define RDSD_MS_PWP 0x02
u_int8_t disc_type_id;
#define RDSD_DT_NEED_CARTRIDGE 0x00
#define RDSD_DT_NO_CART_NEEDED 0x01
u_int8_t reserved1;
u_int8_t ram_swi_info;
#define RDSD_SWI_NO_BARE 0x01
#define RDSD_SWI_UNSPEC 0xff
};
struct scsi_read_dvd_struct_data_spare_area
{
u_int8_t data_len[2];
u_int8_t reserved[2];
u_int8_t unused_primary[4];
u_int8_t unused_supl[4];
u_int8_t allocated_supl[4];
};
struct scsi_read_dvd_struct_data_rmd_borderout
{
u_int8_t data_len[2];
u_int8_t reserved[2];
u_int8_t rmd[30720]; /* maximum is 30720 bytes */
};
struct scsi_read_dvd_struct_data_rmd
{
u_int8_t data_len[2];
u_int8_t reserved[2];
u_int8_t last_sector_num[4];
u_int8_t rmd_bytes[32768]; /* This is the maximum */
};
/*
* XXX KDM this is the MMC2 version of the structure.
* The variable positions have changed (in a semi-conflicting way) in the
* MMC3 spec, although the overall length of the structure is the same.
*/
struct scsi_read_dvd_struct_data_leadin
{
u_int8_t data_len[2];
u_int8_t reserved0[2];
u_int8_t field_id_1;
u_int8_t app_code;
u_int8_t disc_physical_data;
u_int8_t last_addr[3];
u_int8_t reserved1[2];
u_int8_t field_id_2;
u_int8_t rwp;
u_int8_t rwp_wavelength;
u_int8_t optimum_write_strategy;
u_int8_t reserved2[4];
u_int8_t field_id_3;
u_int8_t manuf_id_17_12[6];
u_int8_t reserved3;
u_int8_t field_id_4;
u_int8_t manuf_id_11_6[6];
u_int8_t reserved4;
u_int8_t field_id_5;
u_int8_t manuf_id_5_0[6];
u_int8_t reserved5[25];
};
struct scsi_read_dvd_struct_data_disc_id
{
u_int8_t data_len[2];
u_int8_t reserved[4];
u_int8_t random_num[2];
u_int8_t year[4];
u_int8_t month[2];
u_int8_t day[2];
u_int8_t hour[2];
u_int8_t minute[2];
u_int8_t second[2];
};
struct scsi_read_dvd_struct_data_generic_dcb
{
u_int8_t content_desc[4];
#define SCSI_RCB
u_int8_t unknown_desc_actions[4];
#define RDSD_ACTION_RECORDING 0x0001
#define RDSD_ACTION_READING 0x0002
#define RDSD_ACTION_FORMAT 0x0004
#define RDSD_ACTION_MODIFY_DCB 0x0008
u_int8_t vendor_id[32];
u_int8_t dcb_data[32728];
};
struct scsi_read_dvd_struct_data_dcb
{
u_int8_t data_len[2];
u_int8_t reserved[2];
struct scsi_read_dvd_struct_data_generic_dcb dcb;
};
struct read_dvd_struct_write_prot
{
u_int8_t data_len[2];
u_int8_t reserved0[2];
u_int8_t write_prot_status;
#define RDSD_WPS_MSWI 0x08
#define RDSD_WPS_CWP 0x04
#define RDSD_WPS_PWP 0x02
#define RDSD_WPS_SWPP 0x01
u_int8_t reserved[3];
};
struct read_dvd_struct_list_entry
{
u_int8_t format_code;
u_int8_t sds_rds;
#define RDSD_SDS_NOT_WRITEABLE 0x00
#define RDSD_SDS_WRITEABLE 0x80
#define RDSD_SDS_MASK 0x80
#define RDSD_RDS_NOT_READABLE 0x00
#define RDSD_RDS_READABLE 0x40
#define RDSD_RDS_MASK 0x40
u_int8_t struct_len[2];
};
struct read_dvd_struct_data_list
{
u_int8_t data_len[2];
u_int8_t reserved[2];
struct read_dvd_struct_list_entry entries[0];
};
struct scsi_read_cd_cap_data
{
u_int8_t addr_3; /* Most significant */
u_int8_t addr_2;
u_int8_t addr_1;
u_int8_t addr_0; /* Least significant */
u_int8_t length_3; /* Most significant */
u_int8_t length_2;
u_int8_t length_1;
u_int8_t length_0; /* Least significant */
};
union cd_pages
{
struct audio_page
{
u_int8_t page_code;
#define CD_PAGE_CODE 0x3F
#define AUDIO_PAGE 0x0e
#define CD_PAGE_PS 0x80
u_int8_t param_len;
u_int8_t flags;
#define CD_PA_SOTC 0x02
#define CD_PA_IMMED 0x04
u_int8_t unused[2];
u_int8_t format_lba;
#define CD_PA_FORMAT_LBA 0x0F
#define CD_PA_APR_VALID 0x80
u_int8_t lb_per_sec[2];
struct port_control
{
u_int8_t channels;
#define CHANNEL 0x0F
#define CHANNEL_0 1
#define CHANNEL_1 2
#define CHANNEL_2 4
#define CHANNEL_3 8
#define LEFT_CHANNEL CHANNEL_0
#define RIGHT_CHANNEL CHANNEL_1
u_int8_t volume;
} port[4];
#define LEFT_PORT 0
#define RIGHT_PORT 1
}audio;
};
struct cd_mode_data
{
struct scsi_mode_header_6 header;
struct scsi_mode_blk_desc blk_desc;
union cd_pages page;
};
__BEGIN_DECLS
void scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int32_t lba, u_int8_t agid,
u_int8_t key_format, u_int8_t *data_ptr,
u_int32_t dxfer_len, u_int8_t sense_len,
u_int32_t timeout);
void scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int8_t agid, u_int8_t key_format,
u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
u_int32_t timeout);
void scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int32_t address,
u_int8_t layer_number, u_int8_t format,
u_int8_t agid, u_int8_t *data_ptr,
u_int32_t dxfer_len, u_int8_t sense_len,
u_int32_t timeout);
__END_DECLS
#endif /*_SCSI_SCSI_CD_H*/