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Annotation of linux/kernel/blk_drv/scsi/7000fasst.h, revision 1.1

1.1     ! root        1: #ifndef _WD7000FASST_H
        !             2: 
        !             3: /* $Id: 7000fasst.h,v 1.1 1992/07/24 06:27:38 root Exp root $
        !             4:  *
        !             5:  * Header file for the WD 7000-FASST driver for Linux
        !             6:  *
        !             7:  * $Log: 7000fasst.h,v $
        !             8:  * Revision 1.1  1992/07/24  06:27:38  root
        !             9:  * Initial revision
        !            10:  *
        !            11:  * Revision 1.1  1992/07/05  08:32:32  root
        !            12:  * Initial revision
        !            13:  *
        !            14:  * Revision 1.1  1992/05/15  18:38:05  root
        !            15:  * Initial revision
        !            16:  *
        !            17:  * Revision 1.1  1992/04/02  03:23:13  drew
        !            18:  * Initial revision
        !            19:  *
        !            20:  * Revision 1.3  1992/01/27  14:46:29  tthorn
        !            21:  * *** empty log message ***
        !            22:  *
        !            23:  */
        !            24: 
        !            25: #include <linux/types.h>
        !            26: 
        !            27: #undef STATMASK
        !            28: #undef CONTROL
        !            29: 
        !            30: #define io_base                0x350
        !            31: #define intr_chan      15
        !            32: #define dma_chan       6
        !            33: #define OGMB_CNT       8
        !            34: #define ICMB_CNT       8
        !            35: 
        !            36: /* I/O Port interface 4.2 */
        !            37: /* READ */
        !            38: #define ASC_STAT io_base
        !            39: #define INT_IM 0x80            /* Interrupt Image Flag */
        !            40: #define CMD_RDY        0x40            /* Command Port Ready */
        !            41: #define CMD_REJ        0x20            /* Command Port Byte Rejected */
        !            42: #define ASC_INI        0x10            /* ASC Initialized Flag */
        !            43: #define STATMASK 0xf0          /* The lower 4 Bytes are reserved */
        !            44: 
        !            45: /* This register saves two purposes
        !            46:  * Diagnostics error
        !            47:  * Interrupt Status
        !            48:  */
        !            49: #define INTR_STAT ASC_STAT+1
        !            50: #define ANYINTR        0x80            /* Mailbox Service possible/required */
        !            51: #define IMB    0x40            /* 1 Incoming / 0 Outgoing */
        !            52: #define MBMASK 0x3f
        !            53: /* if MSB is zero, the content of the lower ones keeps Diagnostic State *
        !            54:  * 00  Power-on, no diagnostics executed
        !            55:  * 01  No diagnostic Error Occured
        !            56:  * 02  RAM Failed
        !            57:  * 03  FIFO R/W Failed
        !            58:  * ...
        !            59: */
        !            60: 
        !            61: /* WRITE */
        !            62: #define COMMAND ASC_STAT
        !            63: 
        !            64: #define INTR_ACK ASC_STAT+1
        !            65: 
        !            66: 
        !            67: #define CONTROL ASC_STAT+2
        !            68: #define INT_EN 0x08            /* Interrupt Enable     */
        !            69: #define DMA_EN 0x04            /* DMA Enable           */
        !            70: #define SCSI_RES       0x02    /* SCSI Reset           */
        !            71: #define ASC_RES        0x01            /* ASC Reset            */
        !            72: 
        !            73: /* The DMA-Controller */
        !            74: #define DMA_MODE_REG   0xd6
        !            75: #define DMA_MASK_REG   0xd4
        !            76: #define S_DMA_MSK      0x04
        !            77: #define DMA_CH         0x02
        !            78: #define        CASCADE         0xc0
        !            79: 
        !            80: /* Mailbox Definition 5.3 */
        !            81: 
        !            82: /* These belong in scsi.h also */
        !            83: #undef any2scsi
        !            84: #define any2scsi(up, p)                        \
        !            85: (up)[0] = (((long)(p)) >> 16); \
        !            86: (up)[1] = ((long)(p)) >> 8;            \
        !            87: (up)[2] = ((long)(p));
        !            88: 
        !            89: #define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) )
        !            90: 
        !            91: #define xany2scsi(up, p)       \
        !            92: (up)[0] = ((long)(p)) >> 24;   \
        !            93: (up)[1] = ((long)(p)) >> 16;   \
        !            94: (up)[2] = ((long)(p)) >> 8;    \
        !            95: (up)[3] = ((long)(p));
        !            96: 
        !            97: #define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \
        !            98:                      + (((long)(up)[2]) <<  8) +  ((long)(up)[3]) )
        !            99: 
        !           100: #define MAX_CDB 12
        !           101: #define MAX_SENSE 14
        !           102: 
        !           103: struct scb {                   /* Command Control Block 5.4.1 */
        !           104:   unchar op;                   /* Command Control Block Operation Code */
        !           105:   unchar idlun;                        /* op=0,2:Target Id, op=1:Initiator Id */
        !           106:                                /* Outbound data transfer, length is checked*/
        !           107:                                /* Inbound data transfer, length is checked */
        !           108:                                /* Logical Unit Number */
        !           109:   unchar scbdata[12];          /* SCSI Command Block */
        !           110:   unchar sretstat;             /* SCSI Return Status */
        !           111:   unchar vue;                  /* Vendor Unique Error Code */
        !           112:   unchar maxdata[3];           /* Maximum Data Transfer Length */
        !           113:   unchar dataptr[3];           /* SCSI Data Block Pointer */
        !           114:   unchar linkptr[3];           /* Next Command Link Pointer */
        !           115:   unchar direc;                        /* Transfer Direction */
        !           116:   unchar reserved2[6];         /* SCSI Command Descriptor Block */
        !           117:                                /* REQUEST SENSE */
        !           118: };
        !           119: 
        !           120: int wd7000fasst_detect(int);
        !           121: int wd7000fasst_command(unsigned char target, const void *cmnd, void *buff, int bufflen);
        !           122: int wd7000fasst_queuecommand(unchar target, const void *cmnd, void *buff, int bufflen, void (*done)(int,int));
        !           123: int wd7000fasst_abort(int);
        !           124: char *wd7000fasst_info(void);
        !           125: int wd7000fasst_reset(void);
        !           126: 
        !           127: #ifndef NULL
        !           128:        #define NULL 0
        !           129: #endif
        !           130: 
        !           131: #define WD7000FASST {"Western Digital 7000FASST", wd7000fasst_detect,  \
        !           132:                wd7000fasst_info, wd7000fasst_command,          \
        !           133:                wd7000fasst_queuecommand,               \
        !           134:                wd7000fasst_abort,                              \
        !           135:                wd7000fasst_reset,                              \
        !           136:                1, 7, 0}
        !           137: #endif

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