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Annotation of sys/dev/isa/if_elreg.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: if_elreg.h,v 1.2 1997/11/07 08:06:50 niklas Exp $     */
        !             2: /*     $NetBSD: if_elreg.h,v 1.4 1994/10/27 04:17:29 cgd Exp $ */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1994, Matthew E. Kimmel.  Permission is hereby granted
        !             6:  * to use, copy, modify and distribute this software provided that both
        !             7:  * the copyright notice and this permission notice appear in all copies
        !             8:  * of the software, derivative works or modified versions, and any
        !             9:  * portions thereof.
        !            10:  */
        !            11:
        !            12: /*
        !            13:  * 3COM Etherlink 3C501 Register Definitions
        !            14:  */
        !            15:
        !            16: /*
        !            17:  * I/O Ports
        !            18:  */
        !            19: #define        EL_RXS          0x6     /* Receive status register */
        !            20: #define        EL_RXC          0x6     /* Receive command register */
        !            21: #define        EL_TXS          0x7     /* Transmit status register */
        !            22: #define        EL_TXC          0x7     /* Transmit command register */
        !            23: #define        EL_GPBL         0x8     /* GP buffer ptr low byte */
        !            24: #define        EL_GPBH         0x9     /* GP buffer ptr high byte */
        !            25: #define        EL_RBL          0xa     /* Receive buffer ptr low byte */
        !            26: #define        EL_RBC          0xa     /* Receive buffer clear */
        !            27: #define        EL_RBH          0xb     /* Receive buffer ptr high byte */
        !            28: #define        EL_EAW          0xc     /* Ethernet address window */
        !            29: #define        EL_AS           0xe     /* Auxillary status register */
        !            30: #define        EL_AC           0xe     /* Auxillary command register */
        !            31: #define        EL_BUF          0xf     /* Data buffer */
        !            32:
        !            33: /* Receive status register bits */
        !            34: #define        EL_RXS_OFLOW    0x01    /* Overflow error */
        !            35: #define        EL_RXS_FCS      0x02    /* FCS error */
        !            36: #define        EL_RXS_DRIB     0x04    /* Dribble error */
        !            37: #define        EL_RXS_SHORT    0x08    /* Short frame */
        !            38: #define        EL_RXS_NOFLOW   0x10    /* No overflow */
        !            39: #define        EL_RXS_GOOD     0x20    /* Received good frame */
        !            40: #define        EL_RXS_STALE    0x80    /* Stale receive status */
        !            41:
        !            42: /* Receive command register bits */
        !            43: #define        EL_RXC_DISABLE  0x00    /* Receiver disabled */
        !            44: #define        EL_RXC_DOFLOW   0x01    /* Detect overflow */
        !            45: #define        EL_RXC_DFCS     0x02    /* Detect FCS errs */
        !            46: #define        EL_RXC_DDRIB    0x04    /* Detect dribble errors */
        !            47: #define        EL_RXC_DSHORT   0x08    /* Detect short frames */
        !            48: #define        EL_RXC_DNOFLOW  0x10    /* Detect frames w/o overflow ??? */
        !            49: #define        EL_RXC_AGF      0x20    /* Accept Good Frames */
        !            50: #define        EL_RXC_PROMISC  0x40    /* Promiscuous mode */
        !            51: #define        EL_RXC_ABROAD   0x80    /* Accept address, broadcast */
        !            52: #define        EL_RXC_AMULTI   0xc0    /* Accept address, multicast */
        !            53:
        !            54: /* Transmit status register bits */
        !            55: #define        EL_TXS_UFLOW    0x01    /* Underflow */
        !            56: #define        EL_TXS_COLL     0x02    /* Collision */
        !            57: #define        EL_TXS_COLL16   0x04    /* Collision 16 */
        !            58: #define        EL_TXS_READY    0x08    /* Ready for new frame */
        !            59:
        !            60: /* Transmit command register bits */
        !            61: #define        EL_TXC_DUFLOW   0x01    /* Detect underflow */
        !            62: #define        EL_TXC_DCOLL    0x02    /* Detect collisions */
        !            63: #define        EL_TXC_DCOLL16  0x04    /* Detect collision 16 */
        !            64: #define        EL_TXC_DSUCCESS 0x08    /* Detect success */
        !            65:
        !            66: /* Auxillary status register bits */
        !            67: #define        EL_AS_RXBUSY    0x01    /* Receive busy */
        !            68: #define        EL_AS_DMADONE   0x10    /* DMA finished */
        !            69: #define        EL_AS_TXBUSY    0x80    /* Transmit busy */
        !            70:
        !            71: /* Auxillary command register bits */
        !            72: #define        EL_AC_HOST      0x00    /* System bus can access buffer */
        !            73: #define        EL_AC_IRQE      0x01    /* IRQ enable */
        !            74: #define        EL_AC_TXBAD     0x02    /* Transmit frames with bad FCS */
        !            75: #define        EL_AC_TXFRX     0x04    /* Transmit followed by receive */
        !            76: #define        EL_AC_RX        0x08    /* Receive */
        !            77: #define        EL_AC_LB        0x0c    /* Loopback */
        !            78: #define        EL_AC_DRQ       0x20    /* DMA request */
        !            79: #define        EL_AC_RIDE      0x40    /* DRQ and IRQ enabled */
        !            80: #define        EL_AC_RESET     0x80    /* Reset */
        !            81:
        !            82: /* Packet buffer size */
        !            83: #define        EL_BUFSIZ       2048