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Annotation of xinu/sys/ethrstrt.c, revision 1.1

1.1     ! root        1: /* ethrstrt.c - ethrstrt */
        !             2: 
        !             3: #include <conf.h>
        !             4: #include <kernel.h>
        !             5: #include <network.h>
        !             6: #include <qbus.h>
        !             7: 
        !             8: /*------------------------------------------------------------------------
        !             9:  *  ethrstrt - start an ethernet read operation on the DEQNA
        !            10:  *------------------------------------------------------------------------
        !            11:  */
        !            12: 
        !            13: ethrstrt(etptr, buf, len)
        !            14:        struct  etblk   *etptr;
        !            15:        char    *buf;
        !            16:        int     len;
        !            17: {
        !            18:        struct  dcmd    *dcmptr;
        !            19:        struct  dqregs  *dqptr;
        !            20: 
        !            21:        dcmptr = etptr->ercmd;
        !            22:        dcmptr->dc_bufh = DC_VALID | hiQ2low(buf);
        !            23:        dcmptr->dc_buf  = (short) buf;
        !            24:        dcmptr->dc_len = dqlen(len);
        !            25:        dcmptr->dc_st1 = dcmptr->dc_st2 = DC_INIT;
        !            26:        dcmptr->dc_flag = DC_NUSED;
        !            27:        dqptr = etptr->eioaddr;
        !            28:        dqptr->d_rcmd = (short) dcmptr;
        !            29:        dqptr->d_rcmdh = hiQ2low(dcmptr);
        !            30:        return(OK);
        !            31: }

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