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/**
* \file
*
* \brief SCSI Block Commands
*
* This file contains definitions of some of the commands found in the
* SCSI SBC-2 standard.
*
* Note that the SBC specification depends on several commands defined
* by the SCSI Primary Commands (SPC) standard. Each version of the SBC
* standard is meant to be used in conjunction with a specific version
* of the SPC standard, as follows:
* - SBC depends on SPC
* - SBC-2 depends on SPC-3
* - SBC-3 depends on SPC-4
*
* Copyright (c) 2014-2015 Atmel Corporation. All rights reserved.
*
* \asf_license_start
*
* \page License
*
* 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.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The name of Atmel may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 4. This software may only be redistributed and used in connection with an
* Atmel microcontroller product.
*
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
*
* \asf_license_stop
*
*/
/*
* Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a>
*/
#ifndef _SBC_PROTOCOL_H_
#define _SBC_PROTOCOL_H_
/**
* \ingroup usb_msc_protocol
* \defgroup usb_sbc_protocol SCSI Block Commands protocol definitions
*
* @{
*/
//! \name SCSI commands defined by SBC-2
//@{
#define SBC_FORMAT_UNIT 0x04
#define SBC_READ6 0x08
#define SBC_WRITE6 0x0A
#define SBC_START_STOP_UNIT 0x1B
#define SBC_READ_CAPACITY10 0x25
#define SBC_READ10 0x28
#define SBC_WRITE10 0x2A
#define SBC_VERIFY10 0x2F
//@}
//! \name SBC-2 Mode page definitions
//@{
enum scsi_sbc_mode {
SCSI_MS_MODE_RW_ERR_RECOV = 0x01, //!< Read-Write Error Recovery mode page
SCSI_MS_MODE_FORMAT_DEVICE = 0x03, //!< Format Device mode page
SCSI_MS_MODE_FLEXIBLE_DISK = 0x05, //!< Flexible Disk mode page
SCSI_MS_MODE_CACHING = 0x08, //!< Caching mode page
};
//! \name SBC-2 Device-Specific Parameter
//@{
#define SCSI_MS_SBC_WP 0x80 //!< Write Protected
#define SCSI_MS_SBC_DPOFUA 0x10 //!< DPO and FUA supported
//@}
/**
* \brief SBC-2 Short LBA mode parameter block descriptor
*/
struct sbc_slba_block_desc {
be32_t nr_blocks; //!< Number of Blocks
be32_t block_len; //!< Block Length
#define SBC_SLBA_BLOCK_LEN_MASK 0x00FFFFFFU //!< Mask reserved bits
};
/**
* \brief SBC-2 Caching mode page
*/
struct sbc_caching_mode_page {
uint8_t page_code;
uint8_t page_length;
uint8_t flags2;
#define SBC_MP_CACHE_IC (1 << 7) //!< Initiator Control
#define SBC_MP_CACHE_ABPF (1 << 6) //!< Abort Pre-Fetch
#define SBC_MP_CACHE_CAP (1 << 5) //!< Catching Analysis Permitted
#define SBC_MP_CACHE_DISC (1 << 4) //!< Discontinuity
#define SBC_MP_CACHE_SIZE (1 << 3) //!< Size enable
#define SBC_MP_CACHE_WCE (1 << 2) //!< Write back Cache Enable
#define SBC_MP_CACHE_MF (1 << 1) //!< Multiplication Factor
#define SBC_MP_CACHE_RCD (1 << 0) //!< Read Cache Disable
uint8_t retention;
be16_t dis_pf_transfer_len;
be16_t min_prefetch;
be16_t max_prefetch;
be16_t max_prefetch_ceil;
uint8_t flags12;
#define SBC_MP_CACHE_FSW (1 << 7) //!< Force Sequential Write
#define SBC_MP_CACHE_LBCSS (1 << 6) //!< Logical Blk Cache Seg Sz
#define SBC_MP_CACHE_DRA (1 << 5) //!< Disable Read-Ahead
#define SBC_MP_CACHE_NV_DIS (1 << 0) //!< Non-Volatile Cache Disable
uint8_t nr_cache_segments;
be16_t cache_segment_size;
uint8_t reserved[4];
};
/**
* \brief SBC-2 Read-Write Error Recovery mode page
*/
struct sbc_rdwr_error_recovery_mode_page {
uint8_t page_code;
uint8_t page_length;
#define SPC_MP_RW_ERR_RECOV_PAGE_LENGTH 0x0A
uint8_t flags1;
#define SBC_MP_RW_ERR_RECOV_AWRE (1 << 7)
#define SBC_MP_RW_ERR_RECOV_ARRE (1 << 6)
#define SBC_MP_RW_ERR_RECOV_TB (1 << 5)
#define SBC_MP_RW_ERR_RECOV_RC (1 << 4)
#define SBC_MP_RW_ERR_RECOV_ERR (1 << 3)
#define SBC_MP_RW_ERR_RECOV_PER (1 << 2)
#define SBC_MP_RW_ERR_RECOV_DTE (1 << 1)
#define SBC_MP_RW_ERR_RECOV_DCR (1 << 0)
uint8_t read_retry_count;
uint8_t correction_span;
uint8_t head_offset_count;
uint8_t data_strobe_offset_count;
uint8_t flags2;
uint8_t write_retry_count;
uint8_t flags3;
be16_t recovery_time_limit;
};
//@}
/**
* \brief SBC-2 READ CAPACITY (10) parameter data
*/
struct sbc_read_capacity10_data {
be32_t max_lba; //!< LBA of last logical block
be32_t block_len; //!< Number of bytes in the last logical block
};
//@}
#endif // _SBC_PROTOCOL_H_
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