Annotation of 43BSD/sys/vaxif/if_ecreg.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)if_ecreg.h  7.1 (Berkeley) 6/5/86
        !             7:  */
        !             8: 
        !             9: /*
        !            10:  * 3Com Ethernet controller registers.
        !            11:  */
        !            12: struct ecdevice {
        !            13:        short   ec_rcr;         /* Receive Control Register */
        !            14:        short   ec_xcr;         /* Transmit Control Register */
        !            15: };
        !            16: 
        !            17: /*
        !            18:  * Control and status bits -- rcr
        !            19:  */
        !            20: #define        EC_SPIE         0x8000          /* set parity interrupt enable */
        !            21: #define        EC_ASTEP        0x4000          /* increment address counter */
        !            22: #define        EC_AROM         0x2000          /* 1: Use address ROM, 0: use RAM */
        !            23: #define        EC_PE           0x2000          /* Parity error */
        !            24: #define        EC_AWCLK        0x1000          /* address write clock bit */
        !            25: #define        EC_PIE          0x1000          /* Parity interrupt enable (read) */
        !            26: #define        EC_ADATA        0x0f00          /* address/filtering */
        !            27: #define        EC_RDONE        0x0080          /* receive done */
        !            28: #define        EC_MDISAB       0x0080          /* memory disable */
        !            29: #define        EC_RINTEN       0x0040          /* receive interrupt enable */
        !            30: #define        EC_RCLR         0x0020          /* clear RDONE bit */
        !            31: #define        EC_RWBN         0x0010          /* submit buffer for receive */
        !            32: #define        EC_RBN          0x000f          /* buffer number */
        !            33: 
        !            34: #define        EC_RBITS        "\10\16PE\15PIE\10RDONE\7RINTEN"
        !            35: 
        !            36: /*
        !            37:  * Control and status bits -- xcr
        !            38:  */
        !            39: #define        EC_JAM          0x8000          /* collision dectected */
        !            40: #define        EC_JINTEN       0x4000          /* collision interrupt enable */
        !            41: #define        EC_JCLR         0x2000          /* clear collision detect */
        !            42: #define        EC_UECLR        0x0100          /* reset controller */
        !            43: #define        EC_XDONE        0x0080          /* transmit done */
        !            44: #define        EC_XINTEN       0x0040          /* transmit interrupt enable */
        !            45: #define        EC_XCLR         0x0020          /* clear XDONE bit */
        !            46: #define        EC_XWBN         0x0010          /* submit buffer for transmit */
        !            47: #define        EC_XBN          0x000f          /* buffer number */
        !            48: 
        !            49: #define        EC_XBITS        "\10\20JAM\17JINTEN\10XDONE\7XINTEN"
        !            50: 
        !            51: /*
        !            52:  * Useful combinations
        !            53:  */
        !            54: #define        EC_READ         (0x600|EC_RINTEN|EC_RWBN)
        !            55: #define        EC_WRITE        (EC_JINTEN|EC_XINTEN|EC_XWBN)
        !            56: #define        EC_CLEAR        (EC_JINTEN|EC_XINTEN|EC_JCLR)
        !            57: 
        !            58: /*
        !            59:  * Buffer number definitions
        !            60:  */
        !            61: #define        ECTBF           0               /* Buffer for transmit */
        !            62: #define        ECRLBF          1               /* First buffer for receive */
        !            63: #define        ECRHBF          15              /* Last buffer for receive */
        !            64: 
        !            65: #define        ECRDOFF         528             /* Packet offset in read buffer */

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