sbp2.h

IEE1394 SBP-2 linux 驱动原码

/*
 * sbp2.h - Defines and prototypes for sbp2.c
 *
 * Copyright (C) 2000 James Goodwin, Filanet Corporation (www.filanet.com)
 * [e-mail]
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef SBP2_H
#define SBP2_H

#define SBP2_DEVICE_NAME		"sbp2"
#define SBP2_DEVICE_NAME_SIZE		4

/*
 * SBP2 specific structures and defines
 */

#define ORB_FMT_CMD			0x0
#define ORB_FMT_DUMMY			0x3

#define ORB_DIRECTION_WRITE_TO_MEDIA    0x0
#define ORB_DIRECTION_READ_FROM_MEDIA   0x1
#define ORB_DIRECTION_NO_DATA_TRANSFER  0x2

#define ORB_SET_NOTIFY(value)                   ((value & 0x1) << 31)
#define ORB_SET_RQ_FMT(value)                   ((value & 0x3) << 29)
#define ORB_SET_NODE_ID(value)			((value & 0xffff) << 16)

struct sbp2_dummy_orb {
	volatile u32 next_ORB_hi;
	volatile u32 next_ORB_lo;
	u32 reserved1;
        u32 reserved2;
	u32 notify_rq_fmt;
	u8 command_block[12];
};

#define ORB_SET_DATA_SIZE(value)                (value & 0xffff)
#define ORB_SET_PAGE_SIZE(value)                ((value & 0x7) << 16)
#define ORB_SET_PAGE_TABLE_PRESENT(value)       ((value & 0x1) << 19)
#define ORB_SET_MAX_PAYLOAD(value)              ((value & 0xf) << 20)
#define ORB_SET_SPEED(value)                    ((value & 0x7) << 24)
#define ORB_SET_DIRECTION(value)                ((value & 0x1) << 27)

struct sbp2_command_orb {
	volatile u32 next_ORB_hi;
	volatile u32 next_ORB_lo;
	u32 data_descriptor_hi;
	u32 data_descriptor_lo;
	u32 misc;
	u8 cdb[12];
};

#define LOGIN_REQUEST			0x0
#define QUERY_LOGINS_REQUEST		0x1
#define RECONNECT_REQUEST		0x3
#define SET_PASSWORD_REQUEST		0x4
#define LOGOUT_REQUEST			0x7
#define ABORT_TASK_REQUEST		0xb
#define ABORT_TASK_SET			0xc
#define LOGICAL_UNIT_RESET		0xe
#define TARGET_RESET_REQUEST		0xf

#define ORB_SET_LUN(value)                      (value & 0xffff)
#define ORB_SET_FUNCTION(value)                 ((value & 0xf) << 16)
#define ORB_SET_RECONNECT(value)                ((value & 0xf) << 20)
#define ORB_SET_EXCLUSIVE(value)                ((value & 0x1) << 28)
#define ORB_SET_LOGIN_RESP_LENGTH(value)        (value & 0xffff)
#define ORB_SET_PASSWD_LENGTH(value)            ((value & 0xffff) << 16)

struct sbp2_login_orb {
	u32 password_hi;
	u32 password_lo;
	u32 login_response_hi;
	u32 login_response_lo;
	u32 lun_misc;
	u32 passwd_resp_lengths;
	u32 status_FIFO_hi;
	u32 status_FIFO_lo;
};

#define RESPONSE_GET_LOGIN_ID(value)            (value & 0xffff)
#define RESPONSE_GET_LENGTH(value)              ((value >> 16) & 0xffff)
#define RESPONSE_GET_RECONNECT_HOLD(value)      (value & 0xffff)

struct sbp2_login_response {
	u32 length_login_ID;
	u32 command_block_agent_hi;
	u32 command_block_agent_lo;
	u32 reconnect_hold;
};

#define ORB_SET_LOGIN_ID(value)                 (value & 0xffff)

struct sbp2_reconnect_orb {
	u32 reserved1;
	u32 reserved2;
        u32 reserved3;
        u32 reserved4;
	u32 login_ID_misc;
	u32 reserved5;
	u32 status_FIFO_hi;
	u32 status_FIFO_lo;
};

struct sbp2_logout_orb {
	u32 reserved1;
	u32 reserved2;
        u32 reserved3;
        u32 reserved4;
	u32 login_ID_misc;
	u32 reserved5;
	u32 status_FIFO_hi;
	u32 status_FIFO_lo;
};

#define PAGE_TABLE_SET_SEGMENT_BASE_HI(value)   (value & 0xffff)
#define PAGE_TABLE_SET_SEGMENT_LENGTH(value)    ((value & 0xffff) << 16)

struct sbp2_unrestricted_page_table {
	u32 length_segment_base_hi;
	u32 segment_base_lo;
};

#define RESP_STATUS_REQUEST_COMPLETE		0x0
#define RESP_STATUS_TRANSPORT_FAILURE		0x1
#define RESP_STATUS_ILLEGAL_REQUEST		0x2
#define RESP_STATUS_VENDOR_DEPENDENT		0x3

#define SBP2_STATUS_NO_ADDITIONAL_INFO		0x0
#define SBP2_STATUS_REQ_TYPE_NOT_SUPPORTED	0x1
#define SBP2_STATUS_SPEED_NOT_SUPPORTED		0x2
#define SBP2_STATUS_PAGE_SIZE_NOT_SUPPORTED	0x3
#define SBP2_STATUS_ACCESS_DENIED		0x4
#define SBP2_STATUS_LU_NOT_SUPPORTED		0x5
#define SBP2_STATUS_MAX_PAYLOAD_TOO_SMALL	0x6
#define SBP2_STATUS_RESOURCES_UNAVAILABLE	0x8
#define SBP2_STATUS_FUNCTION_REJECTED		0x9
#define SBP2_STATUS_LOGIN_ID_NOT_RECOGNIZED	0xa
#define SBP2_STATUS_DUMMY_ORB_COMPLETED		0xb
#define SBP2_STATUS_REQUEST_ABORTED		0xc
#define SBP2_STATUS_UNSPECIFIED_ERROR		0xff

#define SFMT_CURRENT_ERROR			0x0
#define SFMT_DEFERRED_ERROR			0x1
#define SFMT_VENDOR_DEPENDENT_STATUS		0x3

#define SBP2_SCSI_STATUS_GOOD			0x0
#define SBP2_SCSI_STATUS_CHECK_CONDITION	0x2
#define SBP2_SCSI_STATUS_CONDITION_MET		0x4
#define SBP2_SCSI_STATUS_BUSY			0x8
#define SBP2_SCSI_STATUS_RESERVATION_CONFLICT	0x18
#define SBP2_SCSI_STATUS_COMMAND_TERMINATED	0x22

#define SBP2_SCSI_STATUS_SELECTION_TIMEOUT	0xff

#define STATUS_GET_ORB_OFFSET_HI(value)         (value & 0xffff)
#define STATUS_GET_SBP_STATUS(value)            ((value >> 16) & 0xff)
#define STATUS_GET_LENGTH(value)                ((value >> 24) & 0x7)
#define STATUS_GET_DEAD_BIT(value)              ((value >> 27) & 0x1)
#define STATUS_GET_RESP(value)                  ((value >> 28) & 0x3)
#define STATUS_GET_SRC(value)                   ((value >> 30) & 0x3)

struct sbp2_status_block {
	u32 ORB_offset_hi_misc;
	u32 ORB_offset_lo;
        u8 command_set_dependent[24];
};

/*
 * Miscellaneous SBP2 related config rom defines
 */

#define SBP2_STATUS_FIFO_ADDRESS				0xfffe00000000ULL     /* for write posting! */
#define SBP2_STATUS_FIFO_ADDRESS_HI                             0xfffe
#define SBP2_STATUS_FIFO_ADDRESS_LO                             0x0

#define SBP2_UNIT_DIRECTORY_OFFSET_KEY				0xd1
#define SBP2_CSR_OFFSET_KEY					0x54
#define SBP2_UNIT_SPEC_ID_KEY					0x12
#define SBP2_UNIT_SW_VERSION_KEY				0x13
#define SBP2_COMMAND_SET_SPEC_ID_KEY				0x38
#define SBP2_COMMAND_SET_KEY					0x39
#define SBP2_UNIT_CHARACTERISTICS_KEY				0x3a
#define SBP2_DEVICE_TYPE_AND_LUN_KEY				0x14
#define SBP2_FIRMWARE_REVISION_KEY				0x3c

#define SBP2_AGENT_STATE_OFFSET					0x00ULL
#define SBP2_AGENT_RESET_OFFSET					0x04ULL
#define SBP2_ORB_POINTER_OFFSET					0x08ULL
#define SBP2_DOORBELL_OFFSET					0x10ULL
#define SBP2_UNSOLICITED_STATUS_ENABLE_OFFSET			0x14ULL
#define SBP2_UNSOLICITED_STATUS_VALUE				0xf

#define SBP2_BUSY_TIMEOUT_ADDRESS				0xfffff0000210ULL
#define SBP2_BUSY_TIMEOUT_VALUE					0xf

#define SBP2_AGENT_RESET_DATA					0xf

/*
 * Unit spec id and sw version entry for SBP-2 devices
 */

#define SBP2_UNIT_SPEC_ID_ENTRY					0x0000609e
#define SBP2_SW_VERSION_ENTRY					0x00010483

/*
 * Miscellaneous general config rom related defines
 */

#define CONFIG_ROM_INITIAL_MEMORY_SPACE 			0xfffff0000000ULL

#define CONFIG_ROM_BASE_ADDRESS					0xfffff0000400ULL
#define CONFIG_ROM_ROOT_DIR_BASE				0xfffff0000414ULL
#define CONFIG_ROM_UNIT_DIRECTORY_OFFSET			0xfffff0000424ULL

#define SBP2_128KB_BROKEN_FIRMWARE				0xa0b800
#define SBP2_BROKEN_FIRMWARE_MAX_TRANSFER			0x20000

/*
 * Flags for SBP-2 functions
 */
#define SBP2_SEND_NO_WAIT					0x00000001

/*
 * SCSI specific stuff
 */

#define SBP2_MAX_SG_ELEMENTS		SG_ALL
#define SBP2_CLUSTERING			ENABLE_CLUSTERING
#define SBP2_MAX_SG_ELEMENT_LENGTH	0xf000
#define SBP2SCSI_MAX_SCSI_IDS		8
#define SBP2SCSI_MAX_OUTSTANDING_CMDS	8	/* Max total outstanding sbp2 commands allowed at a time! */
#define SBP2SCSI_MAX_CMDS_PER_LUN	4 	/* Max outstanding sbp2 commands per device - tune as needed */

#ifndef TYPE_SDAD
#define TYPE_SDAD			0x0e	/* simplified direct access device */
#endif

/*
 * SCSI direction table... since the scsi stack doesn't specify direction...   =(
 *
 * DIN = IN data direction
 * DOU = OUT data direction
 * DNO = No data transfer
 * DUN = Unknown data direction
 *