255 lines
6.9 KiB
C
255 lines
6.9 KiB
C
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/*
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* Structure and function declartaions for the
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* SCSI Sequential Access Peripheral driver for CAM.
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*
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* Copyright (c) 1997 Justin T. Gibbs
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id$
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*/
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#ifndef _SCSI_SCSI_SA_H
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#define _SCSI_SCSI_SA_H 1
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#include <sys/cdefs.h>
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struct scsi_read_block_limits
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{
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u_int8_t opcode;
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u_int8_t byte2;
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u_int8_t unused[3];
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u_int8_t control;
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};
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struct scsi_read_block_limits_data
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{
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u_int8_t gran;
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#define RBL_GRAN_MASK 0x1F
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#define RBL_GRAN(rblim) ((rblim)->gran & RBL_GRAN_MASK)
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u_int8_t maximum[3];
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u_int8_t minimum[2];
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};
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struct scsi_sa_rw
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{
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u_int8_t opcode;
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u_int8_t sli_fixed;
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#define SAR_SLI 0x02
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#define SARW_FIXED 0x01
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u_int8_t length[3];
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u_int8_t control;
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};
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struct scsi_load_unload
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{
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u_int8_t opcode;
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u_int8_t immediate;
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#define SLU_IMMED 0x01
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u_int8_t reserved[2];
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u_int8_t eot_reten_load;
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#define SLU_EOT 0x04
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#define SLU_RETEN 0x02
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#define SLU_LOAD 0x01
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u_int8_t control;
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};
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struct scsi_rewind
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{
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u_int8_t opcode;
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u_int8_t immediate;
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#define SREW_IMMED 0x01
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u_int8_t reserved[3];
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u_int8_t control;
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};
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typedef enum {
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SS_BLOCKS,
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SS_FILEMARKS,
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SS_SEQFILEMARKS,
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SS_EOD,
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SS_SETMARKS,
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SS_SEQSETMARKS
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} scsi_space_code;
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struct scsi_space
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{
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u_int8_t opcode;
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u_int8_t code;
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#define SREW_IMMED 0x01
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u_int8_t count[3];
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u_int8_t control;
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};
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struct scsi_write_filemarks
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{
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u_int8_t opcode;
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u_int8_t byte2;
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#define SWFMRK_IMMED 0x01
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#define SWFMRK_WSMK 0x02
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u_int8_t num_marks[3];
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u_int8_t control;
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};
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/*
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* Reserve and release unit have the same exact cdb format, but different
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* opcodes.
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*/
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struct scsi_reserve_release_unit
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{
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u_int8_t opcode;
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u_int8_t lun_thirdparty;
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#define SRRU_LUN_MASK 0xE0
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#define SRRU_3RD_PARTY 0x10
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#define SRRU_3RD_SHAMT 1
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#define SRRU_3RD_MASK 0xE
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u_int8_t reserved[3];
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u_int8_t control;
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};
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/*
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* Erase a tape
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*/
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struct scsi_erase
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{
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u_int8_t opcode;
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u_int8_t lun_imm_long;
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#define SE_LUN_MASK 0xE0
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#define SE_LONG 0x1
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#define SE_IMMED 0x2
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u_int8_t reserved[3];
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u_int8_t control;
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};
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/*
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* Dev specific mode page masks.
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*/
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#define SMH_SA_WP 0x80
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#define SMH_SA_BUF_MODE_MASK 0x70
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#define SMH_SA_BUF_MODE_NOBUF 0x00
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#define SMH_SA_BUF_MODE_SIBUF 0x10 /* Single-Initiator buffering */
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#define SMH_SA_BUF_MODE_MIBUF 0x20 /* Multi-Initiator buffering */
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#define SMH_SA_SPEED_MASK 0x0F
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#define SMH_SA_SPEED_DEFAULT 0x00
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/*
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* Sequential-access specific mode page numbers.
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*/
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#define SA_DATA_COMPRESSION_PAGE 0x0f
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#define SA_DEVICE_CONFIGURATION_PAGE 0x10
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#define SA_MEDIUM_PARTITION_PAGE_1 0x11
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#define SA_MEDIUM_PARTITION_PAGE_2 0x12
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#define SA_MEDIUM_PARTITION_PAGE_3 0x13
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#define SA_MEDIUM_PARTITION_PAGE_4 0x14
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/*
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* Mode page definitions.
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*/
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struct scsi_data_compression_page {
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u_int8_t page_code;
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u_int8_t page_length;
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#define SA_DCP_DCE 0x80 /* Data compression enable */
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#define SA_DCP_DCC 0x40 /* Data compression capable */
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u_int8_t dce_and_dcc;
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#define SA_DCP_DDE 0x80 /* Data decompression enable */
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#define SA_DCP_RED_MASK 0x60 /* Report Exception on Decomp. */
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#define SA_DCP_RED_SHAMT 5
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#define SA_DCP_RED_0 0x00
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#define SA_DCP_RED_1 0x20
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#define SA_DCP_RED_2 0x40
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u_int8_t dde_and_red;
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u_int8_t comp_algorithm[4];
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u_int8_t decomp_algorithm[4];
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u_int8_t reserved[4];
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};
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/*
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* Opcodes
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*/
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#define REWIND 0x01
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#define READ_BLOCK_LIMITS 0x05
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#define SA_READ 0x08
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#define SA_WRITE 0x0A
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#define WRITE_FILEMARKS 0x10
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#define SPACE 0x11
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#define RESERVE_UNIT 0x16
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#define RELEASE_UNIT 0x17
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#define ERASE 0x19
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#define LOAD_UNLOAD 0x1B
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__BEGIN_DECLS
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void scsi_read_block_limits(struct ccb_scsiio *, u_int32_t,
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void (*cbfcnp)(struct cam_periph *, union ccb *),
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u_int8_t, struct scsi_read_block_limits_data *,
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u_int8_t , u_int32_t);
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void scsi_sa_read_write(struct ccb_scsiio *csio, u_int32_t retries,
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void (*cbfcnp)(struct cam_periph *, union ccb *),
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u_int8_t tag_action, int readop, int sli,
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int fixed, u_int32_t length, u_int8_t *data_ptr,
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u_int32_t dxfer_len, u_int8_t sense_len,
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u_int32_t timeout);
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void scsi_rewind(struct ccb_scsiio *csio, u_int32_t retries,
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void (*cbfcnp)(struct cam_periph *, union ccb *),
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u_int8_t tag_action, int immediate, u_int8_t sense_len,
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u_int32_t timeout);
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void scsi_space(struct ccb_scsiio *csio, u_int32_t retries,
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void (*cbfcnp)(struct cam_periph *, union ccb *),
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u_int8_t tag_action, scsi_space_code code,
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u_int32_t count, u_int8_t sense_len, u_int32_t timeout);
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void scsi_load_unload(struct ccb_scsiio *csio, u_int32_t retries,
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void (*cbfcnp)(struct cam_periph *, union ccb *),
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u_int8_t tag_action, int immediate, int eot,
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int reten, int load, u_int8_t sense_len,
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u_int32_t timeout);
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void scsi_write_filemarks(struct ccb_scsiio *csio, u_int32_t retries,
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void (*cbfcnp)(struct cam_periph *, union ccb *),
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u_int8_t tag_action, int immediate, int setmark,
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u_int32_t num_marks, u_int8_t sense_len,
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u_int32_t timeout);
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void scsi_reserve_release_unit(struct ccb_scsiio *csio, u_int32_t retries,
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void (*cbfcnp)(struct cam_periph *,
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union ccb *), u_int8_t tag_action,
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int third_party, int third_party_id,
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u_int8_t sense_len, u_int32_t timeout,
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int reserve);
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void scsi_erase(struct ccb_scsiio *csio, u_int32_t retries,
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void (*cbfcnp)(struct cam_periph *, union ccb *),
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u_int8_t tag_action, int immediate, int long_erase,
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u_int8_t sense_len, u_int32_t timeout);
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void scsi_data_comp_page(struct scsi_data_compression_page *page,
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u_int8_t dce, u_int8_t dde, u_int8_t red,
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u_int32_t comp_algorithm,
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u_int32_t decomp_algorithm);
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__END_DECLS
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#endif /* _SCSI_SCSI_SA_H */
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