1 /* $NetBSD: lancevar.h,v 1.16 2015/04/13 16:33:24 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace 9 * Simulation Facility, NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/rndsource.h> 34 35 struct lance_softc { 36 device_t sc_dev; /* base device glue */ 37 struct ethercom sc_ethercom; /* Ethernet common part */ 38 struct ifmedia sc_media; /* our supported media */ 39 40 /* 41 * Memory functions: 42 * 43 * copy to/from descriptor 44 * copy to/from buffer 45 * zero bytes in buffer 46 */ 47 void (*sc_copytodesc) 48 (struct lance_softc *, void *, int, int); 49 void (*sc_copyfromdesc) 50 (struct lance_softc *, void *, int, int); 51 void (*sc_copytobuf) 52 (struct lance_softc *, void *, int, int); 53 void (*sc_copyfrombuf) 54 (struct lance_softc *, void *, int, int); 55 void (*sc_zerobuf) 56 (struct lance_softc *, int, int); 57 58 /* 59 * Machine-dependent functions: 60 * 61 * read/write CSR 62 * hardware reset hook - may be NULL 63 * hardware init hook - may be NULL 64 * no carrier hook - may be NULL 65 * media change hook - may be NULL 66 */ 67 uint16_t (*sc_rdcsr) 68 (struct lance_softc *, uint16_t); 69 void (*sc_wrcsr) 70 (struct lance_softc *, uint16_t, uint16_t); 71 void (*sc_hwreset)(struct lance_softc *); 72 void (*sc_hwinit)(struct lance_softc *); 73 void (*sc_nocarrier)(struct lance_softc *); 74 int (*sc_mediachange)(struct lance_softc *); 75 void (*sc_mediastatus)(struct lance_softc *, struct ifmediareq *); 76 77 /* 78 * Media-supported by this interface. If this is NULL, 79 * the only supported media is assumed to be "manual". 80 */ 81 const int *sc_supmedia; 82 int sc_nsupmedia; 83 int sc_defaultmedia; 84 85 /* PCnet bit to use software selection of a port */ 86 int sc_initmodemedia; 87 88 int sc_havecarrier; /* carrier status */ 89 90 uint16_t sc_conf3; /* CSR3 value */ 91 uint16_t sc_saved_csr0;/* Value of csr0 at time of interrupt */ 92 93 void *sc_mem; /* base address of RAM -- CPU's view */ 94 u_long sc_addr; /* base address of RAM -- LANCE's view */ 95 96 u_long sc_memsize; /* size of RAM */ 97 98 int sc_nrbuf; /* number of receive buffers */ 99 int sc_ntbuf; /* number of transmit buffers */ 100 int sc_last_rd; 101 int sc_first_td, sc_last_td, sc_no_td; 102 103 int sc_initaddr; 104 int sc_rmdaddr; 105 int sc_tmdaddr; 106 int *sc_rbufaddr; 107 int *sc_tbufaddr; 108 109 #ifdef LEDEBUG 110 int sc_debug; 111 #endif 112 uint8_t sc_enaddr[ETHER_ADDR_LEN]; 113 uint8_t sc_pad[2]; 114 krndsource_t rnd_source; 115 116 void (*sc_meminit)(struct lance_softc *); 117 void (*sc_start)(struct ifnet *); 118 }; 119 120 void lance_config(struct lance_softc *); 121 void lance_reset(struct lance_softc *); 122 int lance_init(struct ifnet *); 123 int lance_put(struct lance_softc *, int, struct mbuf *); 124 void lance_read(struct lance_softc *, int, int); 125 void lance_setladrf(struct ethercom *, uint16_t *); 126 127 /* 128 * The following functions are only useful on certain CPU/bus 129 * combinations. They should be written in assembly language for 130 * maximum efficiency, but machine-independent versions are provided 131 * for drivers that have not yet been optimized. 132 */ 133 void lance_copytobuf_contig(struct lance_softc *, void *, int, int); 134 void lance_copyfrombuf_contig(struct lance_softc *, void *, int, int); 135 void lance_zerobuf_contig(struct lance_softc *, int, int); 136 137 #if 0 /* Example only - see lance.c */ 138 void lance_copytobuf_gap2(struct lance_softc *, void *, int, int); 139 void lance_copyfrombuf_gap2(struct lance_softc *, void *, int, int); 140 void lance_zerobuf_gap2(struct lance_softc *, int, int); 141 142 void lance_copytobuf_gap16(struct lance_softc *, void *, int, int); 143 void lance_copyfrombuf_gap16(struct lance_softc *, void *, int, int); 144 void lance_zerobuf_gap16(struct lance_softc *, int, int); 145 #endif /* Example only */ 146
Indexes created Sat Sep 20 22:09:52 GMT 2025