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Annotation of 42BSD/sys/vaxif/if_enreg.h, revision 1.1.1.1

1.1       root        1: /*     if_enreg.h      6.1     83/07/29        */
                      2: 
                      3: /*
                      4:  * Xerox experimental ethernet registers.
                      5:  *
                      6:  * N.B.: status register and device address are read/write,
                      7:  * device address is read-only, rest are WRITE ONLY!
                      8:  */
                      9: struct endevice {
                     10:        short   en_owc;         /* output word count (10 bits) */
                     11:        short   en_oba;         /* output buffer address */
                     12:        short   en_ostat;       /* output control and status */
                     13:        short   en_odelay;      /* output start delay, 25usec units  */
                     14:        short   en_iwc;         /* input word count */
                     15:        short   en_iba;         /* input buffer address */
                     16:        short   en_istat;       /* input csr */
                     17:        short   en_addr;        /* ~device address (low 8 bits) */
                     18: };
                     19: 
                     20: /*
                     21:  * Control and status bits.
                     22:  */
                     23: #define EN_IERROR      0x8000          /* CRC error, buf ovflo or overrun */
                     24: #define        EN_OERROR       0x8000          /* collision or output underrun */
                     25: #define EN_OPDONE      0x0080          /* previous operation completed */
                     26: #define EN_IEN         0x0040          /* enable interrupt when DONE */
                     27: #define        EN_PROMISCUOUS  0x0002          /* promiscuous, input any packet */
                     28: #define EN_GO          0x0001          /* start op bit */
                     29: 
                     30: #define        EN_BITS "\10\20ERR\10OPDONE\7IEN\2PROM\1GO"
                     31: 
                     32: #define        spl_enet()      spl5()

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