scsi.h

GM8120 linux driver.

///////////////////////////////////////////////////////////////////////////////
//
//	File name: SCSI.H
//	Version: 1.0
//	Date: 2003/7/13
//  Description: 
//
//
//	Author: 
//	Email: 
//	Phone: [phone]
//	Company: Faraday Tech. Corp.
///////////////////////////////////////////////////////////////////////////////
#ifndef SCSI_H
#define SCSI_H 



/*
 * This header file contains public constants and structures used by
 * the scsi code for linux.
 */
//=================== 1.Condition Definition  ============================================================
//========================================================================================================
#define ScsiCmd_Fail_Retry		3
#define Scsi_Max_Transfer_Len	16384 //65536;;Bruce
#define SCSI_DbgPrint           printf
//#define printk                  printf
//=================== 2.Define Data Type  ================================================================
//========================================================================================================

#define BOOLEAN    UINT8
#define INT32U     UINT32
#define INT16U     UINT16
#define INT8U      UINT8
/*
 *      SCSI opcodes
 */

#define TEST_UNIT_READY			0x00
#define REQUEST_SENSE			0x03
#define FORMAT_UNIT				0x04		//Option (unsupport)
#define INQUIRY               	0x12
#define MODE_SELECT				0x15		//(unsupport)
#define RESERVE					0x16		//Option (unsupport)
#define RELEASE					0x17		//Option (unsupport)
#define MODE_SENSE				0x1a
#define START_STOP				0x1b		// (unsupport)
#define ALLOW_MEDIUM_REMOVAL	0x1e
#define READ_CAPACITY			0x25
#define READ_10					0x28
#define WRITE_10				0x2a
#define VERIFY					0x2f		//(unsupport)
#define SYNCHRONIZE_CACHE		0x35		//Option (unsupport)
#define WRITE_BUFFER			0x3b		//Option (unsupport)
#define PERSISTENT_RESERVE_IN	0x5e		//Option (unsupport)
#define PERSISTENT_RESERVE_OUT	0x5f		//Option (unsupport)

#define SEND_DIAGNOSTIC		0x1d		//(unsupport)


/*
 *  Status codes
 */

#define GOOD					0x00
#define CHECK_CONDITION		0x01
#define CONDITION_GOOD			0x02
#define BUSY						0x04
#define INTERMEDIATE_GOOD		0x08
#define INTERMEDIATE_C_GOOD	0x0a
#define RESERVATION_CONFLICT	0x0c
#define COMMAND_TERMINATED	0x11
#define QUEUE_FULL				0x14

#define STATUS_MASK				0x3e

/*
 *  SENSE KEYS
 */

#define NO_SENSE				0x00
#define RECOVERED_ERROR		0x01
#define NOT_READY				0x02
#define MEDIUM_ERROR			0x03
#define HARDWARE_ERROR		0x04
#define ILLEGAL_REQUEST			0x05
#define UNIT_ATTENTION			0x06
#define DATA_PROTECT			0x07
#define BLANK_CHECK			0x08
#define COPY_ABORTED			0x0a
#define ABORTED_COMMAND		0x0b
#define VOLUME_OVERFLOW		0x0d
#define MISCOMPARE				0x0e


/*
 *  DEVICE TYPES
 */

#define TYPE_DISK           0x00
#define TYPE_TAPE           0x01
#define TYPE_PRINTER        0x02
#define TYPE_PROCESSOR      0x03    /* HP scanners use this */
#define TYPE_WORM           0x04    /* Treated as ROM by our system */
#define TYPE_ROM            0x05
#define TYPE_SCANNER        0x06
#define TYPE_MOD            0x07    /* Magneto-optical disk - 
				     * - treated as TYPE_DISK */
#define TYPE_MEDIUM_CHANGER 0x08
#define TYPE_COMM           0x09    /* Communications device */
#define TYPE_ENCLOSURE      0x0d    /* Enclosure Services Device */
#define TYPE_NO_LUN         0x7f

/*
 *  MESSAGE CODES
 */

#define COMMAND_COMPLETE    0x00
#define EXTENDED_MESSAGE    0x01
#define EXTENDED_MODIFY_DATA_POINTER    0x00
#define EXTENDED_SDTR                   0x01
#define EXTENDED_EXTENDED_IDENTIFY      0x02    /* SCSI-I only */
#define EXTENDED_WDTR                   0x03
#define SAVE_POINTERS       0x02
#define RESTORE_POINTERS    0x03
#define DISCONNECT          0x04
#define INITIATOR_ERROR     0x05
#define ABORT               0x06
#define MESSAGE_REJECT      0x07
#define NOP                 0x08
#define MSG_PARITY_ERROR    0x09
#define LINKED_CMD_COMPLETE 0x0a
#define LINKED_FLG_CMD_COMPLETE 0x0b
#define BUS_DEVICE_RESET    0x0c

#define INITIATE_RECOVERY   0x0f            /* SCSI-II only */
#define RELEASE_RECOVERY    0x10            /* SCSI-II only */

#define SIMPLE_QUEUE_TAG    0x20
#define HEAD_OF_QUEUE_TAG   0x21
#define ORDERED_QUEUE_TAG   0x22

/*
 * Here are some scsi specific ioctl commands which are sometimes useful.
 */
/* These are a few other constants  only used by scsi  devices */
/* Note that include/linux/cdrom.h also defines IOCTL 0x5300 - 0x5395 */

#define SCSI_IOCTL_GET_IDLUN		0x5382	/* conflicts with CDROMAUDIOBUFSIZ */

/* Used to turn on and off tagged queuing for scsi devices */

#define SCSI_IOCTL_TAGGED_ENABLE	0x5383
#define SCSI_IOCTL_TAGGED_DISABLE	0x5384

/* Used to obtain the host number of a device. */
#define SCSI_IOCTL_PROBE_HOST		0x5385

/* Used to get the bus number for a device */
#define SCSI_IOCTL_GET_BUS_NUMBER	0x5386

/* Used to get the PCI location of a device */
#define SCSI_IOCTL_GET_PCI			0x5387

/*
 *  Use these to separate status msg and our bytes
 *
 *  These are set by:
 *
 *      status byte = set from target device
 *      msg_byte    = return status from host adapter itself.
 *      host_byte   = set by low-level driver to indicate status.
 *      driver_byte = set by mid-level.
 */
#define status_byte(result) (((result) >> 1) & 0x1f)
#define msg_byte(result)    (((result) >> 8) & 0xff)
#define host_byte(result)   (((result) >> 16) & 0xff)
#define driver_byte(result) (((result) >> 24) & 0xff)
#define suggestion(result)  (driver_byte(result) & SUGGEST_MASK)

#define sense_class(sense)  (((sense) >> 4) & 0x7)
#define sense_error(sense)  ((sense) & 0xf)
#define sense_valid(sense)  ((sense) & 0x80);

#define NEEDS_RETRY     0x2001
#define SUCCESS         0x2002
#define FAILED          0x2003
#define QUEUED          0x2004
#define SOFT_ERROR      0x2005
#define ADD_TO_MLQUEUE  0x2006

#define IDENTIFY_BASE       0x80
#define IDENTIFY(can_disconnect, lun)   (IDENTIFY_BASE |\
		     ((can_disconnect) ?  0x40 : 0) |\
		     ((lun) & 0x07))



/*
 * FIXME(eric) - one of the great regrets that I have is that I failed to define
 * these structure elements as something like sc_foo instead of foo.  This would
 * make it so much easier to grep through sources and so forth.  I propose that
 * all new elements that get added to these structures follow this convention.
 * As time goes on and as people have the stomach for it, it should be possible to 
 * go back and retrofit at least some of the elements here with with the prefix.
 */
 #define MAX_COMMAND_SIZE	16
 #define SCSI_SENSE_BUFFERSIZE 	64

/*
 *  the return of the status word will be in the following format :
 *  The low byte is the status returned by the SCSI command, 
 *  with vendor specific bits masked.
 *  
 *  The next byte is the message which followed the SCSI status.
 *  This allows a stos to be used, since the Intel is a little
 *  endian machine.
 *  
 *  The final byte is a host return code, which is one of the following.
 *  
 *  IE 
 *  lsb     msb
 *  status  msg host code   
 *  
 *  Our errors returned by OUR driver, NOT SCSI message.  Or'd with
 *  SCSI message passed back to driver <IF any>.
 */


#define DID_OK          0x00	/* NO error                                */
#define DID_NO_CONNECT  0x01	/* Couldn't connect before timeout period  */
#define DID_BUS_BUSY    0x02	/* BUS stayed busy through time out period */
#define DID_TIME_OUT    0x03	/* TIMED OUT for other reason              */
#define DID_BAD_TARGET  0x04	/* BAD target.                             */
#define DID_ABORT       0x05	/* Told to abort for some other reason     */
#define DID_PARITY      0x06	/* Parity error                            */
#define DID_ERROR       0x07	/* Internal error                          */
#define DID_RESET       0x08	/* Reset by somebody.                      */
#define DID_BAD_INTR    0x09	/* Got an interrupt we weren't expecting.  */
#define DID_PASSTHROUGH 0x0a	/* Force command past mid-layer            */
#define DID_SOFT_ERROR  0x0b	/* The low level driver just wish a retry  */
#define DRIVER_OK       0x00	/* Driver status                           */

/*
 * These are the values that the SCpnt->sc_data_direction and 
 * SRpnt->sr_data_direction can take.  These need to be set
 * The SCSI_DATA_UNKNOWN value is essentially the default.
 * In the event that the command creator didn't bother to
 * set a value, you will see SCSI_DATA_UNKNOWN.
 */
#define SCSI_DATA_UNKNOWN       0
#define SCSI_DATA_WRITE         1
#define SCSI_DATA_READ          2
#define SCSI_DATA_NONE          3

/*
 *  SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft
 *  T10/1561-D Revision 4 Draft dated 7th November 2002.
 */
#define SAM_STAT_GOOD            0x00
#define SAM_STAT_CHECK_CONDITION 0x02
#define SAM_STAT_CONDITION_MET   0x04
#define SAM_STAT_BUSY            0x08
#define SAM_STAT_INTERMEDIATE    0x10
#define SAM_STAT_INTERMEDIATE_CONDITION_MET 0x14
#define SAM_STAT_RESERVATION_CONFLICT 0x18
#define SAM_STAT_COMMAND_TERMINATED 0x22	/* obsolete in SAM-3 */
#define SAM_STAT_TASK_SET_FULL   0x28
#define SAM_STAT_ACA_ACTIVE      0x30
#define SAM_STAT_TASK_ABORTED    0x40


/*
 * Overrides for Emacs so that we follow Linus's tabbing style.
 * Emacs will notice this stuff at the end of the file and automatically
 * adjust the settings for this buffer only.  This must remain at the end
 * of the file.
 * ---------------------------------------------------------------------------
 * Local variables:
 * c-indent-level: 4 
 * c-brace-imaginary-offset: 0
 * c-brace-offset: -4
 * c-argdecl-indent: 4
 * c-label-offset: -4
 * c-continued-statement-offset: 4
 * c-continued-brace-offset: 0
 * indent-tabs-mode: nil
 * tab-width: 8
 * End:
 */
#define CBW_TAG							0x01020304		// temp

#define CBW_SIGNATE					0x43425355
#define CSW_SIGNATE						0x53425355
#define CSW_STATUS_CMD_PASS			0x00