patch-2.4.21 linux-2.4.21/drivers/scsi/aic79xx/aiclib.h

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diff -urN linux-2.4.20/drivers/scsi/aic79xx/aiclib.h linux-2.4.21/drivers/scsi/aic79xx/aiclib.h
@@ -0,0 +1,1001 @@
+/*
+ * Largely 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
+ *
+ * $FreeBSD: src/sys/cam/scsi/scsi_all.h,v 1.21 2002/10/08 17:12:44 ken Exp $
+ * $Id$
+ */
+
+/*
+ * SCSI general  interface description
+ */
+
+#ifndef	_SCSI_SCSI_ALL_H
+#define _SCSI_SCSI_ALL_H 1
+
+/*
+ * SCSI command format
+ */
+
+/*
+ * Define dome bits that are in ALL (or a lot of) scsi commands
+ */
+#define SCSI_CTL_LINK		0x01
+#define SCSI_CTL_FLAG		0x02
+#define SCSI_CTL_VENDOR		0xC0
+#define	SCSI_CMD_LUN		0xA0	/* these two should not be needed */
+#define	SCSI_CMD_LUN_SHIFT	5	/* LUN in the cmd is no longer SCSI */
+
+#define SCSI_MAX_CDBLEN		16	/* 
+					 * 16 byte commands are in the 
+					 * SCSI-3 spec 
+					 */
+/* 6byte CDBs special case 0 length to be 256 */
+#define SCSI_CDB6_LEN(len)	((len) == 0 ? 256 : len)
+
+/*
+ * This type defines actions to be taken when a particular sense code is
+ * received.  Right now, these flags are only defined to take up 16 bits,
+ * but can be expanded in the future if necessary.
+ */
+typedef enum {
+	SS_NOP		= 0x000000, /* Do nothing */
+	SS_RETRY	= 0x010000, /* Retry the command */
+	SS_FAIL		= 0x020000, /* Bail out */
+	SS_START	= 0x030000, /* Send a Start Unit command to the device,
+				     * then retry the original command.
+				     */
+	SS_TUR		= 0x040000, /* Send a Test Unit Ready command to the
+				     * device, then retry the original command.
+				     */
+	SS_REQSENSE	= 0x050000, /* Send a RequestSense command to the
+				     * device, then retry the original command.
+				     */
+	SS_INQ_REFRESH	= 0x060000,
+	SS_MASK		= 0xff0000
+} aic_sense_action;
+
+typedef enum {
+	SSQ_NONE		= 0x0000,
+	SSQ_DECREMENT_COUNT	= 0x0100,  /* Decrement the retry count */
+	SSQ_MANY		= 0x0200,  /* send lots of recovery commands */
+	SSQ_RANGE		= 0x0400,  /*
+					    * This table entry represents the
+					    * end of a range of ASCQs that
+					    * have identical error actions
+					    * and text.
+					    */
+	SSQ_PRINT_SENSE		= 0x0800,
+	SSQ_DELAY		= 0x1000,  /* Delay before retry. */
+	SSQ_DELAY_RANDOM	= 0x2000,  /* Randomized delay before retry. */
+	SSQ_FALLBACK		= 0x4000,  /* Do a speed fallback to recover */
+	SSQ_MASK		= 0xff00
+} aic_sense_action_qualifier;
+
+/* Mask for error status values */
+#define SS_ERRMASK	0xff
+
+/* The default, retyable, error action */
+#define SS_RDEF		SS_RETRY|SSQ_DECREMENT_COUNT|SSQ_PRINT_SENSE|EIO
+
+/* The retyable, error action, with table specified error code */
+#define SS_RET		SS_RETRY|SSQ_DECREMENT_COUNT|SSQ_PRINT_SENSE
+
+/* Fatal error action, with table specified error code */
+#define SS_FATAL	SS_FAIL|SSQ_PRINT_SENSE
+
+struct scsi_generic
+{
+	uint8_t opcode;
+	uint8_t bytes[11];
+};
+
+struct scsi_request_sense
+{
+	uint8_t opcode;
+	uint8_t byte2;
+	uint8_t unused[2];
+	uint8_t length;
+	uint8_t control;
+};
+
+struct scsi_test_unit_ready
+{
+	uint8_t opcode;
+	uint8_t byte2;
+	uint8_t unused[3];
+	uint8_t control;
+};
+
+struct scsi_send_diag
+{
+	uint8_t opcode;
+	uint8_t byte2;
+#define	SSD_UOL		0x01
+#define	SSD_DOL		0x02
+#define	SSD_SELFTEST	0x04
+#define	SSD_PF		0x10
+	uint8_t unused[1];
+	uint8_t paramlen[2];
+	uint8_t control;
+};
+
+struct scsi_sense
+{
+	uint8_t opcode;
+	uint8_t byte2;
+	uint8_t unused[2];
+	uint8_t length;
+	uint8_t control;
+};
+
+struct scsi_inquiry
+{
+	uint8_t opcode;
+	uint8_t byte2;
+#define	SI_EVPD 0x01
+	uint8_t page_code;
+	uint8_t reserved;
+	uint8_t length;
+	uint8_t control;
+};
+
+struct scsi_mode_sense_6
+{
+	uint8_t opcode;
+	uint8_t byte2;
+#define	SMS_DBD				0x08
+	uint8_t page;
+#define	SMS_PAGE_CODE 			0x3F
+#define SMS_VENDOR_SPECIFIC_PAGE	0x00
+#define SMS_DISCONNECT_RECONNECT_PAGE	0x02
+#define SMS_PERIPHERAL_DEVICE_PAGE	0x09
+#define SMS_CONTROL_MODE_PAGE		0x0A
+#define SMS_ALL_PAGES_PAGE		0x3F
+#define	SMS_PAGE_CTRL_MASK		0xC0
+#define	SMS_PAGE_CTRL_CURRENT 		0x00
+#define	SMS_PAGE_CTRL_CHANGEABLE 	0x40
+#define	SMS_PAGE_CTRL_DEFAULT 		0x80
+#define	SMS_PAGE_CTRL_SAVED 		0xC0
+	uint8_t unused;
+	uint8_t length;
+	uint8_t control;
+};
+
+struct scsi_mode_sense_10
+{
+	uint8_t opcode;
+	uint8_t byte2;		/* same bits as small version */
+	uint8_t page; 		/* same bits as small version */
+	uint8_t unused[4];
+	uint8_t length[2];
+	uint8_t control;
+};
+
+struct scsi_mode_select_6
+{
+	uint8_t opcode;
+	uint8_t byte2;
+#define	SMS_SP	0x01
+#define	SMS_PF	0x10
+	uint8_t unused[2];
+	uint8_t length;
+	uint8_t control;
+};
+
+struct scsi_mode_select_10
+{
+	uint8_t opcode;
+	uint8_t byte2;		/* same bits as small version */
+	uint8_t unused[5];
+	uint8_t length[2];
+	uint8_t control;
+};
+
+/*
+ * When sending a mode select to a tape drive, the medium type must be 0.
+ */
+struct scsi_mode_hdr_6
+{
+	uint8_t datalen;
+	uint8_t medium_type;
+	uint8_t dev_specific;
+	uint8_t block_descr_len;
+};
+
+struct scsi_mode_hdr_10
+{
+	uint8_t datalen[2];
+	uint8_t medium_type;
+	uint8_t dev_specific;
+	uint8_t reserved[2];
+	uint8_t block_descr_len[2];
+};
+
+struct scsi_mode_block_descr
+{
+	uint8_t density_code;
+	uint8_t num_blocks[3];
+	uint8_t reserved;
+	uint8_t block_len[3];
+};
+
+struct scsi_log_sense
+{
+	uint8_t opcode;
+	uint8_t byte2;
+#define	SLS_SP				0x01
+#define	SLS_PPC				0x02
+	uint8_t page;
+#define	SLS_PAGE_CODE 			0x3F
+#define	SLS_ALL_PAGES_PAGE		0x00
+#define	SLS_OVERRUN_PAGE		0x01
+#define	SLS_ERROR_WRITE_PAGE		0x02
+#define	SLS_ERROR_READ_PAGE		0x03
+#define	SLS_ERROR_READREVERSE_PAGE	0x04
+#define	SLS_ERROR_VERIFY_PAGE		0x05
+#define	SLS_ERROR_NONMEDIUM_PAGE	0x06
+#define	SLS_ERROR_LASTN_PAGE		0x07
+#define	SLS_PAGE_CTRL_MASK		0xC0
+#define	SLS_PAGE_CTRL_THRESHOLD		0x00
+#define	SLS_PAGE_CTRL_CUMULATIVE	0x40
+#define	SLS_PAGE_CTRL_THRESH_DEFAULT	0x80
+#define	SLS_PAGE_CTRL_CUMUL_DEFAULT	0xC0
+	uint8_t reserved[2];
+	uint8_t paramptr[2];
+	uint8_t length[2];
+	uint8_t control;
+};
+
+struct scsi_log_select
+{
+	uint8_t opcode;
+	uint8_t byte2;
+/*	SLS_SP				0x01 */
+#define	SLS_PCR				0x02
+	uint8_t page;
+/*	SLS_PAGE_CTRL_MASK		0xC0 */
+/*	SLS_PAGE_CTRL_THRESHOLD		0x00 */
+/*	SLS_PAGE_CTRL_CUMULATIVE	0x40 */
+/*	SLS_PAGE_CTRL_THRESH_DEFAULT	0x80 */
+/*	SLS_PAGE_CTRL_CUMUL_DEFAULT	0xC0 */
+	uint8_t reserved[4];
+	uint8_t length[2];
+	uint8_t control;
+};
+
+struct scsi_log_header
+{
+	uint8_t page;
+	uint8_t reserved;
+	uint8_t datalen[2];
+};
+
+struct scsi_log_param_header {
+	uint8_t param_code[2];
+	uint8_t param_control;
+#define	SLP_LP				0x01
+#define	SLP_LBIN			0x02
+#define	SLP_TMC_MASK			0x0C
+#define	SLP_TMC_ALWAYS			0x00
+#define	SLP_TMC_EQUAL			0x04
+#define	SLP_TMC_NOTEQUAL		0x08
+#define	SLP_TMC_GREATER			0x0C
+#define	SLP_ETC				0x10
+#define	SLP_TSD				0x20
+#define	SLP_DS				0x40
+#define	SLP_DU				0x80
+	uint8_t param_len;
+};
+
+struct scsi_control_page {
+	uint8_t page_code;
+	uint8_t page_length;
+	uint8_t rlec;
+#define SCB_RLEC			0x01	/*Report Log Exception Cond*/
+	uint8_t queue_flags;
+#define SCP_QUEUE_ALG_MASK		0xF0
+#define SCP_QUEUE_ALG_RESTRICTED	0x00
+#define SCP_QUEUE_ALG_UNRESTRICTED	0x10
+#define SCP_QUEUE_ERR			0x02	/*Queued I/O aborted for CACs*/
+#define SCP_QUEUE_DQUE			0x01	/*Queued I/O disabled*/
+	uint8_t eca_and_aen;
+#define SCP_EECA			0x80	/*Enable Extended CA*/
+#define SCP_RAENP			0x04	/*Ready AEN Permission*/
+#define SCP_UAAENP			0x02	/*UA AEN Permission*/
+#define SCP_EAENP			0x01	/*Error AEN Permission*/
+	uint8_t reserved;
+	uint8_t aen_holdoff_period[2];
+};
+
+struct scsi_reserve
+{
+	uint8_t opcode;
+	uint8_t byte2;
+	uint8_t unused[2];
+	uint8_t length;
+	uint8_t control;
+};
+
+struct scsi_release
+{
+	uint8_t opcode;
+	uint8_t byte2;
+	uint8_t unused[2];
+	uint8_t length;
+	uint8_t control;
+};
+
+struct scsi_prevent
+{
+	uint8_t opcode;
+	uint8_t byte2;
+	uint8_t unused[2];
+	uint8_t how;
+	uint8_t control;
+};
+#define	PR_PREVENT 0x01
+#define PR_ALLOW   0x00
+
+struct scsi_sync_cache
+{
+	uint8_t opcode;
+	uint8_t byte2;
+	uint8_t begin_lba[4];
+	uint8_t reserved;
+	uint8_t lb_count[2];
+	uint8_t control;	
+};
+
+
+struct scsi_changedef
+{
+	uint8_t opcode;
+	uint8_t byte2;
+	uint8_t unused1;
+	uint8_t how;
+	uint8_t unused[4];
+	uint8_t datalen;
+	uint8_t control;
+};
+
+struct scsi_read_buffer
+{
+	uint8_t opcode;
+	uint8_t byte2;
+#define	RWB_MODE		0x07
+#define	RWB_MODE_HDR_DATA	0x00
+#define	RWB_MODE_DATA		0x02
+#define	RWB_MODE_DOWNLOAD	0x04
+#define	RWB_MODE_DOWNLOAD_SAVE	0x05
+        uint8_t buffer_id;
+        uint8_t offset[3];
+        uint8_t length[3];
+        uint8_t control;
+};
+
+struct scsi_write_buffer
+{
+	uint8_t opcode;
+	uint8_t byte2;
+	uint8_t buffer_id;
+	uint8_t offset[3];
+	uint8_t length[3];
+	uint8_t control;
+};
+
+struct scsi_rw_6
+{
+	uint8_t opcode;
+	uint8_t addr[3];
+/* only 5 bits are valid in the MSB address byte */
+#define	SRW_TOPADDR	0x1F
+	uint8_t length;
+	uint8_t control;
+};
+
+struct scsi_rw_10
+{
+	uint8_t opcode;
+#define	SRW10_RELADDR	0x01
+#define SRW10_FUA	0x08
+#define	SRW10_DPO	0x10
+	uint8_t byte2;
+	uint8_t addr[4];
+	uint8_t reserved;
+	uint8_t length[2];
+	uint8_t control;
+};
+
+struct scsi_rw_12
+{
+	uint8_t opcode;
+#define	SRW12_RELADDR	0x01
+#define SRW12_FUA	0x08
+#define	SRW12_DPO	0x10
+	uint8_t byte2;
+	uint8_t addr[4];
+	uint8_t length[4];
+	uint8_t reserved;
+	uint8_t control;
+};
+
+struct scsi_start_stop_unit
+{
+	uint8_t opcode;
+	uint8_t byte2;
+#define	SSS_IMMED		0x01
+	uint8_t reserved[2];
+	uint8_t how;
+#define	SSS_START		0x01
+#define	SSS_LOEJ		0x02
+	uint8_t control;
+};
+
+#define SC_SCSI_1 0x01
+#define SC_SCSI_2 0x03
+
+/*
+ * Opcodes
+ */
+
+#define	TEST_UNIT_READY		0x00
+#define REQUEST_SENSE		0x03
+#define	READ_6			0x08
+#define WRITE_6			0x0a
+#define INQUIRY			0x12
+#define MODE_SELECT_6		0x15
+#define MODE_SENSE_6		0x1a
+#define START_STOP_UNIT		0x1b
+#define START_STOP		0x1b
+#define RESERVE      		0x16
+#define RELEASE      		0x17
+#define	RECEIVE_DIAGNOSTIC	0x1c
+#define	SEND_DIAGNOSTIC		0x1d
+#define PREVENT_ALLOW		0x1e
+#define	READ_CAPACITY		0x25
+#define	READ_10			0x28
+#define WRITE_10		0x2a
+#define POSITION_TO_ELEMENT	0x2b
+#define	SYNCHRONIZE_CACHE	0x35
+#define	WRITE_BUFFER            0x3b
+#define	READ_BUFFER             0x3c
+#define	CHANGE_DEFINITION	0x40
+#define	LOG_SELECT		0x4c
+#define	LOG_SENSE		0x4d
+#ifdef XXXCAM
+#define	MODE_SENSE_10		0x5A
+#endif
+#define	MODE_SELECT_10		0x55
+#define MOVE_MEDIUM     	0xa5
+#define READ_12			0xa8
+#define WRITE_12		0xaa
+#define READ_ELEMENT_STATUS	0xb8
+
+
+/*
+ * Device Types
+ */
+#define T_DIRECT	0x00
+#define T_SEQUENTIAL	0x01
+#define T_PRINTER	0x02
+#define T_PROCESSOR	0x03
+#define T_WORM		0x04
+#define T_CDROM		0x05
+#define T_SCANNER 	0x06
+#define T_OPTICAL 	0x07
+#define T_CHANGER	0x08
+#define T_COMM		0x09
+#define T_ASC0		0x0a
+#define T_ASC1		0x0b
+#define	T_STORARRAY	0x0c
+#define	T_ENCLOSURE	0x0d
+#define	T_RBC		0x0e
+#define	T_OCRW		0x0f
+#define T_NODEVICE	0x1F
+#define	T_ANY		0xFF	/* Used in Quirk table matches */
+
+#define T_REMOV		1
+#define	T_FIXED		0
+
+/*
+ * This length is the initial inquiry length used by the probe code, as    
+ * well as the legnth necessary for aic_print_inquiry() to function 
+ * correctly.  If either use requires a different length in the future, 
+ * the two values should be de-coupled.
+ */
+#define	SHORT_INQUIRY_LENGTH	36
+
+struct scsi_inquiry_data
+{
+	uint8_t device;
+#define	SID_TYPE(inq_data) ((inq_data)->device & 0x1f)
+#define	SID_QUAL(inq_data) (((inq_data)->device & 0xE0) >> 5)
+#define	SID_QUAL_LU_CONNECTED	0x00	/*
+					 * The specified peripheral device
+					 * type is currently connected to
+					 * logical unit.  If the target cannot
+					 * determine whether or not a physical
+					 * device is currently connected, it
+					 * shall also use this peripheral
+					 * qualifier when returning the INQUIRY
+					 * data.  This peripheral qualifier
+					 * does not mean that the device is
+					 * ready for access by the initiator.
+					 */
+#define	SID_QUAL_LU_OFFLINE	0x01	/*
+					 * The target is capable of supporting
+					 * the specified peripheral device type
+					 * on this logical unit; however, the
+					 * physical device is not currently
+					 * connected to this logical unit.
+					 */
+#define SID_QUAL_RSVD		0x02
+#define	SID_QUAL_BAD_LU		0x03	/*
+					 * The target is not capable of
+					 * supporting a physical device on
+					 * this logical unit. For this
+					 * peripheral qualifier the peripheral
+					 * device type shall be set to 1Fh to
+					 * provide compatibility with previous
+					 * versions of SCSI. All other
+					 * peripheral device type values are
+					 * reserved for this peripheral
+					 * qualifier.
+					 */
+#define	SID_QUAL_IS_VENDOR_UNIQUE(inq_data) ((SID_QUAL(inq_data) & 0x08) != 0)
+	uint8_t dev_qual2;
+#define	SID_QUAL2	0x7F
+#define	SID_IS_REMOVABLE(inq_data) (((inq_data)->dev_qual2 & 0x80) != 0)
+	uint8_t version;
+#define SID_ANSI_REV(inq_data) ((inq_data)->version & 0x07)
+#define		SCSI_REV_0		0
+#define		SCSI_REV_CCS		1
+#define		SCSI_REV_2		2
+#define		SCSI_REV_SPC		3
+#define		SCSI_REV_SPC2		4
+
+#define SID_ECMA	0x38
+#define SID_ISO		0xC0
+	uint8_t response_format;
+#define SID_AENC	0x80
+#define SID_TrmIOP	0x40
+	uint8_t additional_length;
+	uint8_t reserved[2];
+	uint8_t flags;
+#define	SID_SftRe	0x01
+#define	SID_CmdQue	0x02
+#define	SID_Linked	0x08
+#define	SID_Sync	0x10
+#define	SID_WBus16	0x20
+#define	SID_WBus32	0x40
+#define	SID_RelAdr	0x80
+#define SID_VENDOR_SIZE   8
+	char	 vendor[SID_VENDOR_SIZE];
+#define SID_PRODUCT_SIZE  16
+	char	 product[SID_PRODUCT_SIZE];
+#define SID_REVISION_SIZE 4
+	char	 revision[SID_REVISION_SIZE];
+	/*
+	 * The following fields were taken from SCSI Primary Commands - 2
+	 * (SPC-2) Revision 14, Dated 11 November 1999
+	 */
+#define	SID_VENDOR_SPECIFIC_0_SIZE	20
+	uint8_t vendor_specific0[SID_VENDOR_SPECIFIC_0_SIZE];
+	/*
+	 * An extension of SCSI Parallel Specific Values
+	 */
+#define	SID_SPI_IUS		0x01
+#define	SID_SPI_QAS		0x02
+#define	SID_SPI_CLOCK_ST	0x00
+#define	SID_SPI_CLOCK_DT	0x04
+#define	SID_SPI_CLOCK_DT_ST	0x0C
+#define	SID_SPI_MASK		0x0F
+	uint8_t spi3data;
+	uint8_t reserved2;
+	/*
+	 * Version Descriptors, stored 2 byte values.
+	 */
+	uint8_t version1[2];
+	uint8_t version2[2];
+	uint8_t version3[2];
+	uint8_t version4[2];
+	uint8_t version5[2];
+	uint8_t version6[2];
+	uint8_t version7[2];
+	uint8_t version8[2];
+
+	uint8_t reserved3[22];
+
+#define	SID_VENDOR_SPECIFIC_1_SIZE	160
+	uint8_t vendor_specific1[SID_VENDOR_SPECIFIC_1_SIZE];
+};
+
+struct scsi_vpd_unit_serial_number
+{
+	uint8_t device;
+	uint8_t page_code;
+#define SVPD_UNIT_SERIAL_NUMBER	0x80
+	uint8_t reserved;
+	uint8_t length; /* serial number length */
+#define SVPD_SERIAL_NUM_SIZE 251
+	uint8_t serial_num[SVPD_SERIAL_NUM_SIZE];
+};
+
+struct scsi_read_capacity
+{
+	uint8_t opcode;
+	uint8_t byte2;
+	uint8_t addr[4];
+	uint8_t unused[3];
+	uint8_t control;
+};
+
+struct scsi_read_capacity_data
+{
+	uint8_t addr[4];
+	uint8_t length[4];
+};
+
+struct scsi_report_luns
+{
+	uint8_t opcode;
+	uint8_t byte2;
+	uint8_t unused[3];
+	uint8_t addr[4];
+	uint8_t control;
+};
+
+struct scsi_report_luns_data {
+	uint8_t length[4];	/* length of LUN inventory, in bytes */
+	uint8_t reserved[4];	/* unused */
+	/*
+	 * LUN inventory- we only support the type zero form for now.
+	 */
+	struct {
+		uint8_t lundata[8];
+	} luns[1];
+};
+#define	RPL_LUNDATA_ATYP_MASK	0xc0	/* MBZ for type 0 lun */
+#define	RPL_LUNDATA_T0LUN	1	/* @ lundata[1] */
+
+
+struct scsi_sense_data
+{
+	uint8_t error_code;
+#define	SSD_ERRCODE			0x7F
+#define		SSD_CURRENT_ERROR	0x70
+#define		SSD_DEFERRED_ERROR	0x71
+#define	SSD_ERRCODE_VALID	0x80	
+	uint8_t segment;
+	uint8_t flags;
+#define	SSD_KEY				0x0F
+#define		SSD_KEY_NO_SENSE	0x00
+#define		SSD_KEY_RECOVERED_ERROR	0x01
+#define		SSD_KEY_NOT_READY	0x02
+#define		SSD_KEY_MEDIUM_ERROR	0x03
+#define		SSD_KEY_HARDWARE_ERROR	0x04
+#define		SSD_KEY_ILLEGAL_REQUEST	0x05
+#define		SSD_KEY_UNIT_ATTENTION	0x06
+#define		SSD_KEY_DATA_PROTECT	0x07
+#define		SSD_KEY_BLANK_CHECK	0x08
+#define		SSD_KEY_Vendor_Specific	0x09
+#define		SSD_KEY_COPY_ABORTED	0x0a
+#define		SSD_KEY_ABORTED_COMMAND	0x0b		
+#define		SSD_KEY_EQUAL		0x0c
+#define		SSD_KEY_VOLUME_OVERFLOW	0x0d
+#define		SSD_KEY_MISCOMPARE	0x0e
+#define		SSD_KEY_RESERVED	0x0f			
+#define	SSD_ILI		0x20
+#define	SSD_EOM		0x40
+#define	SSD_FILEMARK	0x80
+	uint8_t info[4];
+	uint8_t extra_len;
+	uint8_t cmd_spec_info[4];
+	uint8_t add_sense_code;
+	uint8_t add_sense_code_qual;
+	uint8_t fru;
+	uint8_t sense_key_spec[3];
+#define	SSD_SCS_VALID		0x80
+#define SSD_FIELDPTR_CMD	0x40
+#define SSD_BITPTR_VALID	0x08
+#define SSD_BITPTR_VALUE	0x07
+#define SSD_MIN_SIZE 18
+	uint8_t extra_bytes[14];
+#define SSD_FULL_SIZE sizeof(struct scsi_sense_data)
+};
+
+struct scsi_mode_header_6
+{
+	uint8_t data_length;	/* Sense data length */
+	uint8_t medium_type;
+	uint8_t dev_spec;
+	uint8_t blk_desc_len;
+};
+
+struct scsi_mode_header_10
+{
+	uint8_t data_length[2];/* Sense data length */
+	uint8_t medium_type;
+	uint8_t dev_spec;
+	uint8_t unused[2];
+	uint8_t blk_desc_len[2];
+};
+
+struct scsi_mode_page_header
+{
+	uint8_t page_code;
+	uint8_t page_length;
+};
+
+struct scsi_mode_blk_desc
+{
+	uint8_t density;
+	uint8_t nblocks[3];
+	uint8_t reserved;
+	uint8_t blklen[3];
+};
+
+#define	SCSI_DEFAULT_DENSITY	0x00	/* use 'default' density */
+#define	SCSI_SAME_DENSITY	0x7f	/* use 'same' density- >= SCSI-2 only */
+
+
+/*
+ * Status Byte
+ */
+#define	SCSI_STATUS_OK			0x00
+#define	SCSI_STATUS_CHECK_COND		0x02
+#define	SCSI_STATUS_COND_MET		0x04
+#define	SCSI_STATUS_BUSY		0x08
+#define SCSI_STATUS_INTERMED		0x10
+#define SCSI_STATUS_INTERMED_COND_MET	0x14
+#define SCSI_STATUS_RESERV_CONFLICT	0x18
+#define SCSI_STATUS_CMD_TERMINATED	0x22	/* Obsolete in SAM-2 */
+#define SCSI_STATUS_QUEUE_FULL		0x28
+#define SCSI_STATUS_ACA_ACTIVE		0x30
+#define SCSI_STATUS_TASK_ABORTED	0x40
+
+struct scsi_inquiry_pattern {
+	uint8_t   type;
+	uint8_t   media_type;
+#define	SIP_MEDIA_REMOVABLE	0x01
+#define	SIP_MEDIA_FIXED		0x02
+	const char *vendor;
+	const char *product;
+	const char *revision;
+}; 
+
+struct scsi_static_inquiry_pattern {
+	uint8_t   type;
+	uint8_t   media_type;
+	char       vendor[SID_VENDOR_SIZE+1];
+	char       product[SID_PRODUCT_SIZE+1];
+	char       revision[SID_REVISION_SIZE+1];
+};
+
+struct scsi_sense_quirk_entry {
+	struct scsi_inquiry_pattern	inq_pat;
+	int				num_sense_keys;
+	int				num_ascs;
+	struct sense_key_table_entry	*sense_key_info;
+	struct asc_table_entry		*asc_info;
+};
+
+struct sense_key_table_entry {
+	uint8_t    sense_key;
+	uint32_t   action;
+	const char *desc;
+};
+
+struct asc_table_entry {
+	uint8_t    asc;
+	uint8_t    ascq;
+	uint32_t   action;
+	const char *desc;
+};
+
+struct op_table_entry {
+	uint8_t    opcode;
+	uint16_t   opmask;
+	const char  *desc;
+};
+
+struct scsi_op_quirk_entry {
+	struct scsi_inquiry_pattern	inq_pat;
+	int				num_ops;
+	struct op_table_entry		*op_table;
+};
+
+typedef enum {
+	SSS_FLAG_NONE		= 0x00,
+	SSS_FLAG_PRINT_COMMAND	= 0x01
+} scsi_sense_string_flags;
+
+extern const char *scsi_sense_key_text[];
+
+/************************* Large Disk Handling ********************************/
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+static __inline int aic_sector_div(u_long capacity, int heads, int sectors);
+
+static __inline int
+aic_sector_div(u_long capacity, int heads, int sectors)
+{
+	return (capacity / (heads * sectors));
+}
+#else
+static __inline int aic_sector_div(sector_t capacity, int heads, int sectors);
+
+static __inline int
+aic_sector_div(sector_t capacity, int heads, int sectors)
+{
+	/* ugly, ugly sector_div calling convention.. */
+	sector_div(capacity, (heads * sectors));
+	return (int)capacity;
+}
+#endif
+
+/**************************** Module Library Hack *****************************/
+/*
+ * What we'd like to do is have a single "scsi library" module that both the
+ * aic7xxx and aic79xx drivers could load and depend on.  A cursory examination
+ * of implementing module dependencies in Linux (handling the install and
+ * initrd cases) does not look promissing.  For now, we just duplicate this
+ * code in both drivers using a simple symbol renaming scheme that hides this
+ * hack from the drivers.
+ */
+#define AIC_LIB_ENTRY_CONCAT(x, prefix)	prefix ## x
+#define	AIC_LIB_ENTRY_EXPAND(x, prefix) AIC_LIB_ENTRY_CONCAT(x, prefix)
+#define AIC_LIB_ENTRY(x)		AIC_LIB_ENTRY_EXPAND(x, AIC_LIB_PREFIX)
+
+#define	aic_sense_desc			AIC_LIB_ENTRY(_sense_desc)
+#define	aic_sense_error_action		AIC_LIB_ENTRY(_sense_error_action)
+#define	aic_error_action		AIC_LIB_ENTRY(_error_action)
+#define	aic_op_desc			AIC_LIB_ENTRY(_op_desc)
+#define	aic_cdb_string			AIC_LIB_ENTRY(_cdb_string)
+#define aic_print_inquiry		AIC_LIB_ENTRY(_print_inquiry)
+#define aic_calc_syncsrate		AIC_LIB_ENTRY(_calc_syncrate)
+#define	aic_calc_syncparam		AIC_LIB_ENTRY(_calc_syncparam)
+#define	aic_calc_speed			AIC_LIB_ENTRY(_calc_speed)
+#define	aic_inquiry_match		AIC_LIB_ENTRY(_inquiry_match)
+#define	aic_static_inquiry_match	AIC_LIB_ENTRY(_static_inquiry_match)
+
+/******************************************************************************/
+
+void			aic_sense_desc(int /*sense_key*/, int /*asc*/,
+				       int /*ascq*/, struct scsi_inquiry_data*,
+				       const char** /*sense_key_desc*/,
+				       const char** /*asc_desc*/);
+aic_sense_action	aic_sense_error_action(struct scsi_sense_data*,
+					       struct scsi_inquiry_data*,
+					       uint32_t /*sense_flags*/);
+uint32_t		aic_error_action(struct scsi_cmnd *,
+					 struct scsi_inquiry_data *,
+					 cam_status, u_int);
+
+#define	SF_RETRY_UA	0x01
+#define SF_NO_PRINT	0x02
+#define SF_QUIET_IR	0x04	/* Be quiet about Illegal Request reponses */
+#define SF_PRINT_ALWAYS	0x08
+
+
+const char *	aic_op_desc(uint16_t /*opcode*/, struct scsi_inquiry_data*);
+char *		aic_cdb_string(uint8_t* /*cdb_ptr*/, char* /*cdb_string*/,
+			       size_t /*len*/);
+void		aic_print_inquiry(struct scsi_inquiry_data*);
+
+u_int		aic_calc_syncsrate(u_int /*period_factor*/);
+u_int		aic_calc_syncparam(u_int /*period*/);
+u_int		aic_calc_speed(u_int width, u_int period, u_int offset,
+			       u_int min_rate);
+	
+int		aic_inquiry_match(caddr_t /*inqbuffer*/,
+				  caddr_t /*table_entry*/);
+int		aic_static_inquiry_match(caddr_t /*inqbuffer*/,
+					 caddr_t /*table_entry*/);
+
+
+static __inline void	 scsi_extract_sense(struct scsi_sense_data *sense,
+					    int *error_code, int *sense_key,
+					    int *asc, int *ascq);
+static __inline void	 scsi_ulto2b(uint32_t val, uint8_t *bytes);
+static __inline void	 scsi_ulto3b(uint32_t val, uint8_t *bytes);
+static __inline void	 scsi_ulto4b(uint32_t val, uint8_t *bytes);
+static __inline uint32_t scsi_2btoul(uint8_t *bytes);
+static __inline uint32_t scsi_3btoul(uint8_t *bytes);
+static __inline int32_t	 scsi_3btol(uint8_t *bytes);
+static __inline uint32_t scsi_4btoul(uint8_t *bytes);
+
+static __inline void scsi_extract_sense(struct scsi_sense_data *sense,
+				       int *error_code, int *sense_key,
+				       int *asc, int *ascq)
+{
+	*error_code = sense->error_code & SSD_ERRCODE;
+	*sense_key = sense->flags & SSD_KEY;
+	*asc = (sense->extra_len >= 5) ? sense->add_sense_code : 0;
+	*ascq = (sense->extra_len >= 6) ? sense->add_sense_code_qual : 0;
+}
+
+static __inline void
+scsi_ulto2b(uint32_t val, uint8_t *bytes)
+{
+
+	bytes[0] = (val >> 8) & 0xff;
+	bytes[1] = val & 0xff;
+}
+
+static __inline void
+scsi_ulto3b(uint32_t val, uint8_t *bytes)
+{
+
+	bytes[0] = (val >> 16) & 0xff;
+	bytes[1] = (val >> 8) & 0xff;
+	bytes[2] = val & 0xff;
+}
+
+static __inline void
+scsi_ulto4b(uint32_t val, uint8_t *bytes)
+{
+
+	bytes[0] = (val >> 24) & 0xff;
+	bytes[1] = (val >> 16) & 0xff;
+	bytes[2] = (val >> 8) & 0xff;
+	bytes[3] = val & 0xff;
+}
+
+static __inline uint32_t
+scsi_2btoul(uint8_t *bytes)
+{
+	uint32_t rv;
+
+	rv = (bytes[0] << 8) |
+	     bytes[1];
+	return (rv);
+}
+
+static __inline uint32_t
+scsi_3btoul(uint8_t *bytes)
+{
+	uint32_t rv;
+
+	rv = (bytes[0] << 16) |
+	     (bytes[1] << 8) |
+	     bytes[2];
+	return (rv);
+}
+
+static __inline int32_t 
+scsi_3btol(uint8_t *bytes)
+{
+	uint32_t rc = scsi_3btoul(bytes);
+ 
+	if (rc & 0x00800000)
+		rc |= 0xff000000;
+
+	return (int32_t) rc;
+}
+
+static __inline uint32_t
+scsi_4btoul(uint8_t *bytes)
+{
+	uint32_t rv;
+
+	rv = (bytes[0] << 24) |
+	     (bytes[1] << 16) |
+	     (bytes[2] << 8) |
+	     bytes[3];
+	return (rv);
+}
+
+#endif /*_SCSI_SCSI_ALL_H*/
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)