157 lines
4.4 KiB
C
157 lines
4.4 KiB
C
/*-
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* Copyright (c) 1997-2001 Granch, Ltd. All rights reserved.
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* Author: Denis I.Timofeev <timofeev@granch.ru>
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*
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* Redistributon and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* SBNI12 definitions
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*/
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/*
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* CONFIGURATION PARAMETER:
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*
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* Uncomment this if you want to use model SBNI12D-11/ISA with same IRQ
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* for both first and second channels.
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*/
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#define SBNI_DUAL_COMPOUND 1
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#define SBNI_DEBUG 0
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#if SBNI_DEBUG
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#define DP(A) A
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#else
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#define DP(A)
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#endif
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struct sbni_in_stats {
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u_int32_t all_rx_number;
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u_int32_t bad_rx_number;
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u_int32_t timeout_number;
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u_int32_t all_tx_number;
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u_int32_t resend_tx_number;
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};
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struct sbni_flags {
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u_int mac_addr : 24;
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u_int rxl : 4;
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u_int rate : 2;
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u_int fixed_rxl : 1;
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u_int fixed_rate : 1;
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};
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#ifdef _KERNEL /* to avoid compile this decls with sbniconfig */
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struct sbni_softc {
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struct ifnet *ifp;
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device_t dev;
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u_char enaddr[6];
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int io_rid;
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struct resource *io_res;
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int io_off;
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int irq_rid;
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struct resource *irq_res;
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void *irq_handle;
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struct mbuf *rx_buf_p; /* receive buffer ptr */
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struct mbuf *tx_buf_p; /* transmit buffer ptr */
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u_int pktlen; /* length of transmitting pkt */
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u_int framelen; /* current frame length */
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u_int maxframe; /* maximum valid frame length */
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u_int state;
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u_int inppos; /* positions in rx/tx buffers */
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u_int outpos; /* positions in rx/tx buffers */
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/* transmitting frame number - from frames qty to 1 */
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u_int tx_frameno;
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/* expected number of next receiving frame */
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u_int wait_frameno;
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/* count of failed attempts to frame send - 32 attempts do before
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error - while receiver tunes on opposite side of wire */
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u_int trans_errors;
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/* idle time; send pong when limit exceeded */
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u_int timer_ticks;
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/* fields used for receive level autoselection */
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int delta_rxl;
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u_int cur_rxl_index;
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u_int timeout_rxl;
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u_int32_t cur_rxl_rcvd;
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u_int32_t prev_rxl_rcvd;
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struct sbni_csr1 csr1; /* current value of CSR1 */
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struct sbni_in_stats in_stats; /* internal statistics */
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struct callout wch;
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struct mtx lock;
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struct sbni_softc *slave_sc;
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#ifdef SBNI_DUAL_COMPOUND
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struct sbni_softc *link;
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#endif
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};
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#define SBNI_LOCK(sc) mtx_lock(&(sc)->lock)
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#define SBNI_UNLOCK(sc) mtx_unlock(&(sc)->lock)
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#define SBNI_ASSERT_LOCKED(sc) mtx_assert(&(sc)->lock, MA_OWNED)
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void sbni_intr(void *);
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int sbni_probe(struct sbni_softc *);
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int sbni_attach(struct sbni_softc *, int, struct sbni_flags);
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void sbni_detach(struct sbni_softc *);
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void sbni_release_resources(struct sbni_softc *);
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extern u_int32_t next_sbni_unit;
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#ifdef SBNI_DUAL_COMPOUND
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void sbni_add(struct sbni_softc *);
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struct sbni_softc *connect_to_master(struct sbni_softc *);
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#endif
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#endif /* _KERNEL */
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/*
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* SBNI socket ioctl params
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*/
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#define SIOCGHWFLAGS _IOWR('i', 62, struct ifreq) /* get flags */
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#define SIOCSHWFLAGS _IOWR('i', 61, struct ifreq) /* set flags */
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#define SIOCGINSTATS _IOWR('i', 60, struct ifreq) /* get internal stats */
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#define SIOCRINSTATS _IOWR('i', 63, struct ifreq) /* reset internal stats */
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/*
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* CRC-32 stuff
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*/
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#define CRC32(c,crc) (crc32tab[((size_t)(crc) ^ (c)) & 0xff] ^ (((crc) >> 8) & 0x00ffffff))
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/* CRC generator EDB88320 */
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/* CRC remainder 2144DF1C */
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/* CRC initial value 0 */
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#define CRC32_REMAINDER 0x2144df1c
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#define CRC32_INITIAL 0x00000000
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