sys/dev/netif/sbni/if_sbnivar.h

   1 /*
   2  * Copyright (c) 1997-2001 Granch, Ltd. All rights reserved.
   3  * Author: Denis I.Timofeev <timofeev@granch.ru>
   4  *
   5  * Redistributon and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice unmodified, this list of conditions, and the following
  10  *    disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  *
  27  * $FreeBSD: src/sys/dev/sbni/if_sbnivar.h,v 1.1.2.3 2002/08/11 09:32:00 fjoe Exp $
  28  * $DragonFly: src/sys/dev/netif/sbni/if_sbnivar.h,v 1.3 2004/09/15 00:39:53 joerg Exp $
  29  */
  30
  31 /*
  32  * SBNI12 definitions
  33  */
  34
  35 /*
  36  * CONFIGURATION PARAMETER:
  37  *
  38  *      Uncomment this if you want to use model SBNI12D-11/ISA with same IRQ
  39  *      for both first and second channels.
  40  */
  41 #define SBNI_DUAL_COMPOUND 1
  42
  43 #define SBNI_DEBUG 0
  44
  45 #if SBNI_DEBUG
  46 #define DP(A) A
  47 #else
  48 #define DP(A)
  49 #endif
  50
  51 struct sbni_in_stats {
  52         u_int32_t       all_rx_number;
  53         u_int32_t       bad_rx_number;
  54         u_int32_t       timeout_number;
  55         u_int32_t       all_tx_number;
  56         u_int32_t       resend_tx_number;
  57 };
  58
  59 struct sbni_flags {
  60         u_int   mac_addr        : 24;
  61         u_int   rxl             : 4;
  62         u_int   rate            : 2;
  63         u_int   fixed_rxl       : 1;
  64         u_int   fixed_rate      : 1;
  65 };
  66
  67
  68 #ifdef _KERNEL  /* to avoid compile this decls with sbniconfig */
  69
  70 struct sbni_softc {
  71         struct  arpcom arpcom;          /* ethernet common */
  72
  73         int     io_rid;
  74         struct  resource *io_res;
  75         int     io_off;
  76
  77         int     irq_rid;
  78         struct  resource *irq_res;
  79         void    *irq_handle;
  80
  81         struct  mbuf *rx_buf_p;         /* receive buffer ptr */
  82         struct  mbuf *tx_buf_p;         /* transmit buffer ptr */
  83
  84         u_int   pktlen;                 /* length of transmitting pkt */
  85         u_int   framelen;               /* current frame length */
  86         u_int   maxframe;               /* maximum valid frame length */
  87         u_int   state;
  88         u_int   inppos;                 /* positions in rx/tx buffers */
  89         u_int   outpos;                 /* positions in rx/tx buffers */
  90
  91         /* transmitting frame number - from frames qty to 1 */
  92         u_int   tx_frameno;
  93
  94         /* expected number of next receiving frame */
  95         u_int   wait_frameno;
  96
  97         /* count of failed attempts to frame send - 32 attempts do before
  98            error - while receiver tunes on opposite side of wire */
  99         u_int   trans_errors;
 100
 101         /* idle time; send pong when limit exceeded */
 102         u_int   timer_ticks;
 103
 104         /* fields used for receive level autoselection */
 105         int     delta_rxl;
 106         u_int   cur_rxl_index;
 107         u_int   timeout_rxl;
 108         u_int32_t       cur_rxl_rcvd;
 109         u_int32_t       prev_rxl_rcvd;
 110
 111         struct  sbni_csr1 csr1;                 /* current value of CSR1 */
 112         struct  sbni_in_stats in_stats;         /* internal statistics */
 113
 114         struct  callout sbni_stat_timer;
 115
 116         struct  sbni_softc *slave_sc;
 117
 118 #ifdef SBNI_DUAL_COMPOUND
 119         struct  sbni_softc *link;
 120 #endif
 121 };
 122
 123 void    sbni_intr(void *);
 124 int     sbni_probe(struct sbni_softc *);
 125 void    sbni_attach(struct sbni_softc *, int, struct sbni_flags);
 126
 127 extern u_int32_t next_sbni_unit;
 128
 129 #ifdef SBNI_DUAL_COMPOUND
 130 extern struct sbni_softc *sbni_headlist;
 131
 132 struct sbni_softc       *connect_to_master(struct sbni_softc *);
 133 #endif
 134 #endif  /* _KERNEL */
 135
 136 /*
 137  * SBNI socket ioctl params
 138  */
 139 #define SIOCGHWFLAGS    _IOWR('i', 62, struct ifreq)    /* get flags */
 140 #define SIOCSHWFLAGS    _IOWR('i', 61, struct ifreq)    /* set flags */
 141 #define SIOCGINSTATS    _IOWR('i', 60, struct ifreq)    /* get internal stats */
 142 #define SIOCRINSTATS    _IOWR('i', 63, struct ifreq)    /* reset internal stats */
 143
 144
 145 /*
 146  * CRC-32 stuff
 147  */
 148 #define CRC32(c,crc) (crc32tab[((size_t)(crc) ^ (c)) & 0xff] ^ (((crc) >> 8) & 0x00ffffff))
 149       /* CRC generator EDB88320 */
 150       /* CRC remainder 2144DF1C */
 151       /* CRC initial value 0 */
 152 #define CRC32_REMAINDER 0x2144df1c
 153 #define CRC32_INITIAL 0x00000000