sys/dev/netif/el/if_elreg.h

   1 /* Copyright (c) 1994, Matthew E. Kimmel.  Permission is hereby granted
   2  * to use, copy, modify and distribute this software provided that both
   3  * the copyright notice and this permission notice appear in all copies
   4  * of the software, derivative works or modified versions, and any
   5  * portions thereof.
   6  *
   7  * $FreeBSD: src/sys/i386/isa/if_elreg.h,v 1.7 1999/08/28 00:44:45 peter Exp $
   8  * $DragonFly: src/sys/dev/netif/el/if_elreg.h,v 1.2 2003/06/17 04:28:37 dillon Exp $
   9  */
  10 /* 3COM Etherlink 3C501 Register Definitions */
  11
  12 /* I/O Ports */
  13 #define EL_RXS  0x6     /* Receive status register */
  14 #define EL_RXC  0x6     /* Receive command register */
  15 #define EL_TXS  0x7     /* Transmit status register */
  16 #define EL_TXC  0x7     /* Transmit command register */
  17 #define EL_GPBL 0x8     /* GP buffer ptr low byte */
  18 #define EL_GPBH 0x9     /* GP buffer ptr high byte */
  19 #define EL_RBL  0xa     /* Receive buffer ptr low byte */
  20 #define EL_RBC  0xa     /* Receive buffer clear */
  21 #define EL_RBH  0xb     /* Receive buffer ptr high byte */
  22 #define EL_EAW  0xc     /* Ethernet address window */
  23 #define EL_AS   0xe     /* Auxiliary status register */
  24 #define EL_AC   0xe     /* Auxiliary command register */
  25 #define EL_BUF  0xf     /* Data buffer */
  26
  27 /* Receive status register bits */
  28 #define EL_RXS_OFLOW    0x01    /* Overflow error */
  29 #define EL_RXS_FCS      0x02    /* FCS error */
  30 #define EL_RXS_DRIB     0x04    /* Dribble error */
  31 #define EL_RXS_SHORT    0x08    /* Short frame */
  32 #define EL_RXS_NOFLOW   0x10    /* No overflow */
  33 #define EL_RXS_GOOD     0x20    /* Received good frame */
  34 #define EL_RXS_STALE    0x80    /* Stale receive status */
  35
  36 /* Receive command register bits */
  37 #define EL_RXC_DISABLE  0x00    /* Receiver disabled */
  38 #define EL_RXC_DOFLOW   0x01    /* Detect overflow */
  39 #define EL_RXC_DFCS     0x02    /* Detect FCS errs */
  40 #define EL_RXC_DDRIB    0x04    /* Detect dribble errors */
  41 #define EL_RXC_DSHORT   0x08    /* Detect short frames */
  42 #define EL_RXC_DNOFLOW  0x10    /* Detect frames w/o overflow ??? */
  43 #define EL_RXC_AGF      0x20    /* Accept Good Frames */
  44 #define EL_RXC_PROMISC  0x40    /* Promiscuous mode */
  45 #define EL_RXC_ABROAD   0x80    /* Accept address, broadcast */
  46 #define EL_RXC_AMULTI   0xc0    /* Accept address, multicast */
  47
  48 /* Transmit status register bits */
  49 #define EL_TXS_UFLOW    0x01    /* Underflow */
  50 #define EL_TXS_COLL     0x02    /* Collision */
  51 #define EL_TXS_COLL16   0x04    /* Collision 16 */
  52 #define EL_TXS_READY    0x08    /* Ready for new frame */
  53
  54 /* Transmit command register bits */
  55 #define EL_TXC_DUFLOW   0x01    /* Detect underflow */
  56 #define EL_TXC_DCOLL    0x02    /* Detect collisions */
  57 #define EL_TXC_DCOLL16  0x04    /* Detect collision 16 */
  58 #define EL_TXC_DSUCCESS 0x08    /* Detect success */
  59
  60 /* Auxiliary status register bits */
  61 #define EL_AS_RXBUSY    0x01    /* Receive busy */
  62 #define EL_AS_DMADONE   0x10    /* DMA finished */
  63 #define EL_AS_TXBUSY    0x80    /* Transmit busy */
  64
  65 /* Auxiliary command register bits */
  66 #define EL_AC_HOST      0x00    /* System bus can access buffer */
  67 #define EL_AC_IRQE      0x01    /* IRQ enable */
  68 #define EL_AC_TXBAD     0x02    /* Transmit frames with bad FCS */
  69 #define EL_AC_TXFRX     0x04    /* Transmit followed by receive */
  70 #define EL_AC_RX        0x08    /* Receive */
  71 #define EL_AC_LB        0x0c    /* Loopback */
  72 #define EL_AC_DRQ       0x20    /* DMA request */
  73 #define EL_AC_RIDE      0x40    /* DRQ and IRQ enabled */
  74 #define EL_AC_RESET     0x80    /* Reset */
  75
  76 /* Packet buffer size */
  77 #define EL_BUFSIZ       2048