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Annotation of linux/kernel/blk_drv/scsi/aha1542.h, revision 1.1

1.1     ! root        1: #ifndef _AHA1542_H
        !             2: 
        !             3: /* $Id: aha1542.h,v 1.1 1992/04/24 18:01:50 root Exp root $
        !             4:  *
        !             5:  * Header file for the adaptec 1542 driver for Linux
        !             6:  *
        !             7:  * $Log: aha1542.h,v $
        !             8:  * Revision 1.1  1992/04/24  18:01:50  root
        !             9:  * Initial revision
        !            10:  *
        !            11:  * Revision 1.1  1992/04/02  03:23:13  drew
        !            12:  * Initial revision
        !            13:  *
        !            14:  * Revision 1.3  1992/01/27  14:46:29  tthorn
        !            15:  * *** empty log message ***
        !            16:  *
        !            17:  */
        !            18: 
        !            19: typedef unsigned char unchar;
        !            20: 
        !            21: /* I/O Port interface 4.2 */
        !            22: /* READ */
        !            23: #define STATUS base
        !            24: #define STST   0x80            /* Self Test in Progress */
        !            25: #define DIAGF  0x40            /* Internal Diagonostic Failure */
        !            26: #define INIT   0x20            /* Mailbox Initialization Required */
        !            27: #define IDLE   0x10            /* SCSI Host Adapter Idle */
        !            28: #define CDF    0x08            /* Command/Data Out Port Full */
        !            29: #define DF     0x04            /* Data In Port Full */
        !            30: #define INVDCMD        0x01            /* Invalid H A Command */
        !            31: #define STATMASK 0xfd          /* 0x02 is reserved */
        !            32: 
        !            33: #define INTRFLAGS STATUS+2
        !            34: #define ANYINTR        0x80            /* Any Interrupt */
        !            35: #define SCRD   0x08            /* SCSI Reset Detected */
        !            36: #define HACC   0x04            /* HA Command Complete */
        !            37: #define MBOA   0x02            /* MBO Empty */
        !            38: #define MBIF   0x01            /* MBI Full */
        !            39: #define INTRMASK 0x8f
        !            40: 
        !            41: /* WRITE */
        !            42: #define CONTROL STATUS
        !            43: #define HRST   0x80            /* Hard Reset */
        !            44: #define SRST   0x40            /* Soft Reset */
        !            45: #define IRST   0x20            /* Interrupt Reset */
        !            46: #define SCRST  0x10            /* SCSI Bus Reset */
        !            47: 
        !            48: /* READ/WRITE */
        !            49: #define DATA STATUS+1
        !            50: #define CMD_NOP                0x00    /* No Operation */
        !            51: #define CMD_MBINIT     0x01    /* Mailbox Initialization */
        !            52: #define CMD_START_SCSI 0x02    /* Start SCSI Command */
        !            53: #define CMD_INQUIRY    0x04    /* Adapter Inquiry */
        !            54: #define CMD_EMBOI      0x05    /* Enable MailBox Out Interrupt */
        !            55: #define CMD_BUSON_TIME 0x07    /* Set Bus-On Time */
        !            56: #define CMD_BUSOFF_TIME        0x08    /* Set Bus-Off Time */
        !            57: #define CMD_RETDEVS    0x0a    /* Return Installed Devices */
        !            58: #define CMD_RETCONF    0x0b    /* Return Configuration Data */
        !            59: #define CMD_RETSETUP   0x0d    /* Return Setup Data */
        !            60: #define CMD_ECHO       0x1f    /* ECHO Command Data */
        !            61: 
        !            62: /* Mailbox Definition 5.2.1 and 5.2.2 */
        !            63: struct mailbox {
        !            64:   unchar status;               /* Command/Status */
        !            65:   unchar ccbptr[3];            /* msb, .., lsb */
        !            66: };
        !            67: 
        !            68: /* These belong in scsi.h also */
        !            69: #define any2scsi(up, p)                        \
        !            70: (up)[0] = (((long)(p)) >> 16) & 0xff;  \
        !            71: (up)[1] = ((long)(p)) >> 8;            \
        !            72: (up)[2] = ((long)(p));
        !            73: 
        !            74: #define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) )
        !            75: 
        !            76: #define xany2scsi(up, p)       \
        !            77: (up)[0] = ((long)(p)) >> 24;   \
        !            78: (up)[1] = ((long)(p)) >> 16;   \
        !            79: (up)[2] = ((long)(p)) >> 8;    \
        !            80: (up)[3] = ((long)(p));
        !            81: 
        !            82: #define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \
        !            83:                      + (((long)(up)[2]) <<  8) +  ((long)(up)[3]) )
        !            84: 
        !            85: #define MAX_CDB 12
        !            86: #define MAX_SENSE 14
        !            87: 
        !            88: struct ccb {                   /* Command Control Block 5.3 */
        !            89:   unchar op;                   /* Command Control Block Operation Code */
        !            90:   unchar idlun;                        /* op=0,2:Target Id, op=1:Initiator Id */
        !            91:                                /* Outbound data transfer, length is checked*/
        !            92:                                /* Inbound data transfer, length is checked */
        !            93:                                /* Logical Unit Number */
        !            94:   unchar cdblen;               /* SCSI Command Length */
        !            95:   unchar rsalen;               /* Request Sense Allocation Length/Disable */
        !            96:   unchar datalen[3];           /* Data Length (msb, .., lsb) */
        !            97:   unchar dataptr[3];           /* Data Pointer */
        !            98:   unchar linkptr[3];           /* Link Pointer */
        !            99:   unchar commlinkid;           /* Command Linking Identifier */
        !           100:   unchar hastat;               /* Host Adapter Status (HASTAT) */
        !           101:   unchar tarstat;              /* Target Device Status */
        !           102:   unchar reserved[2];
        !           103:   unchar cdb[MAX_CDB+MAX_SENSE];/* SCSI Command Descriptor Block */
        !           104:                                /* REQUEST SENSE */
        !           105: };
        !           106: 
        !           107: int aha1542_detect(int);
        !           108: int aha1542_command(unsigned char target, const void *cmnd, void *buff, int bufflen);
        !           109: /*int aha1542_queuecommand(unchar target, const void *cmnd, void *buff, int bufflen, void (*done)(int));*/
        !           110: int aha1542_abort(int);
        !           111: char *aha1542_info(void);
        !           112: int aha1542_reset(void);
        !           113: 
        !           114: #ifndef NULL
        !           115:        #define NULL 0
        !           116: #endif
        !           117: 
        !           118: #define AHA1542 {"Adaptec 1542", aha1542_detect,       \
        !           119:                aha1542_info, aha1542_command,          \
        !           120:                /*aha1542_queuecommand*/ NULL,          \
        !           121:                aha1542_abort,                          \
        !           122:                aha1542_reset,                          \
        !           123:                0, 7, 0}
        !           124: #endif

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