| 1 | /* |
| 2 | * Copyright (c) 1995, David Greenman |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution 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 NEGLIGENCE 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/snc/if_snc.c,v 1.2.2.1 2000/10/21 03:30:03 nyan Exp $ |
| 28 | */ |
| 29 | |
| 30 | /* |
| 31 | * National Semiconductor DP8393X SONIC Driver |
| 32 | * |
| 33 | * This is the bus independent attachment on FreeBSD 4.x |
| 34 | * written by Motomichi Matsuzaki <mzaki@e-mail.ne.jp> |
| 35 | */ |
| 36 | |
| 37 | #include <sys/param.h> |
| 38 | #include <sys/systm.h> |
| 39 | #include <sys/sockio.h> |
| 40 | #include <sys/mbuf.h> |
| 41 | #include <sys/socket.h> |
| 42 | #include <sys/syslog.h> |
| 43 | |
| 44 | #include <sys/module.h> |
| 45 | #include <sys/bus.h> |
| 46 | #include <machine/bus.h> |
| 47 | #include <sys/rman.h> |
| 48 | #include <machine/resource.h> |
| 49 | |
| 50 | #include <net/ethernet.h> |
| 51 | #include <net/if.h> |
| 52 | #include <net/if_arp.h> |
| 53 | #include <net/if_media.h> |
| 54 | #include <net/if_dl.h> |
| 55 | #include <net/if_mib.h> |
| 56 | |
| 57 | #include <net/bpf.h> |
| 58 | #include "opt_bdg.h" |
| 59 | #ifdef BRIDGE |
| 60 | #include <net/bridge.h> |
| 61 | #endif |
| 62 | |
| 63 | #include <dev/snc/dp83932reg.h> |
| 64 | #include <dev/snc/dp83932var.h> |
| 65 | #include <dev/snc/dp83932subr.h> |
| 66 | #include <dev/snc/if_sncreg.h> |
| 67 | #include <dev/snc/if_sncvar.h> |
| 68 | |
| 69 | /* devclass for "snc" */ |
| 70 | devclass_t snc_devclass; |
| 71 | |
| 72 | /**************************************************************** |
| 73 | Resource management functions |
| 74 | ****************************************************************/ |
| 75 | |
| 76 | /* |
| 77 | * Allocate a port resource with the given resource id. |
| 78 | */ |
| 79 | int |
| 80 | snc_alloc_port(dev, rid) |
| 81 | device_t dev; |
| 82 | int rid; |
| 83 | { |
| 84 | struct snc_softc *sc = device_get_softc(dev); |
| 85 | struct resource *res; |
| 86 | |
| 87 | res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, |
| 88 | 0ul, ~0ul, SNEC_NREGS, RF_ACTIVE); |
| 89 | if (res) { |
| 90 | sc->ioport = res; |
| 91 | sc->ioport_rid = rid; |
| 92 | sc->sc_iot = rman_get_bustag(res); |
| 93 | sc->sc_ioh = rman_get_bushandle(res); |
| 94 | return (0); |
| 95 | } else { |
| 96 | device_printf(dev, "can't assign port\n"); |
| 97 | return (ENOENT); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | /* |
| 102 | * Allocate a memory resource with the given resource id. |
| 103 | */ |
| 104 | int |
| 105 | snc_alloc_memory(dev, rid) |
| 106 | device_t dev; |
| 107 | int rid; |
| 108 | { |
| 109 | struct snc_softc *sc = device_get_softc(dev); |
| 110 | struct resource *res; |
| 111 | |
| 112 | res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, |
| 113 | 0ul, ~0ul, SNEC_NMEMS, RF_ACTIVE); |
| 114 | if (res) { |
| 115 | sc->iomem = res; |
| 116 | sc->iomem_rid = rid; |
| 117 | sc->sc_memt = rman_get_bustag(res); |
| 118 | sc->sc_memh = rman_get_bushandle(res); |
| 119 | return (0); |
| 120 | } else { |
| 121 | device_printf(dev, "can't assign memory\n"); |
| 122 | return (ENOENT); |
| 123 | } |
| 124 | } |
| 125 | |
| 126 | /* |
| 127 | * Allocate an irq resource with the given resource id. |
| 128 | */ |
| 129 | int |
| 130 | snc_alloc_irq(dev, rid, flags) |
| 131 | device_t dev; |
| 132 | int rid; |
| 133 | int flags; |
| 134 | { |
| 135 | struct snc_softc *sc = device_get_softc(dev); |
| 136 | struct resource *res; |
| 137 | |
| 138 | res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, |
| 139 | 0ul, ~0ul, 1, (RF_ACTIVE | flags)); |
| 140 | if (res) { |
| 141 | sc->irq = res; |
| 142 | sc->irq_rid = rid; |
| 143 | return (0); |
| 144 | } else { |
| 145 | device_printf(dev, "can't assign irq\n"); |
| 146 | return (ENOENT); |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | /* |
| 151 | * Release all resources |
| 152 | */ |
| 153 | void |
| 154 | snc_release_resources(dev) |
| 155 | device_t dev; |
| 156 | { |
| 157 | struct snc_softc *sc = device_get_softc(dev); |
| 158 | |
| 159 | if (sc->ioport) { |
| 160 | bus_release_resource(dev, SYS_RES_IOPORT, |
| 161 | sc->ioport_rid, sc->ioport); |
| 162 | sc->ioport = 0; |
| 163 | } |
| 164 | if (sc->iomem) { |
| 165 | bus_release_resource(dev, SYS_RES_MEMORY, |
| 166 | sc->iomem_rid, sc->iomem); |
| 167 | sc->iomem = 0; |
| 168 | } |
| 169 | if (sc->irq) { |
| 170 | bus_release_resource(dev, SYS_RES_IRQ, |
| 171 | sc->irq_rid, sc->irq); |
| 172 | sc->irq = 0; |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | /**************************************************************** |
| 177 | Probe routine |
| 178 | ****************************************************************/ |
| 179 | |
| 180 | int |
| 181 | snc_probe(dev, type) |
| 182 | device_t dev; |
| 183 | int type; |
| 184 | { |
| 185 | struct snc_softc *sc = device_get_softc(dev); |
| 186 | |
| 187 | return snc_nec16_detectsubr(sc->sc_iot, sc->sc_ioh, |
| 188 | sc->sc_memt, sc->sc_memh, |
| 189 | rman_get_start(sc->irq), |
| 190 | rman_get_start(sc->iomem), |
| 191 | type); |
| 192 | } |
| 193 | |
| 194 | /**************************************************************** |
| 195 | Attach routine |
| 196 | ****************************************************************/ |
| 197 | |
| 198 | int |
| 199 | snc_attach(dev) |
| 200 | device_t dev; |
| 201 | { |
| 202 | struct snc_softc *sc = device_get_softc(dev); |
| 203 | u_int8_t myea[ETHER_ADDR_LEN]; |
| 204 | |
| 205 | if (snc_nec16_register_irq(sc, rman_get_start(sc->irq)) == 0 || |
| 206 | snc_nec16_register_mem(sc, rman_get_start(sc->iomem)) == 0) { |
| 207 | snc_release_resources(dev); |
| 208 | return(ENOENT); |
| 209 | } |
| 210 | |
| 211 | snc_nec16_get_enaddr(sc->sc_iot, sc->sc_ioh, myea); |
| 212 | device_printf(dev, "%s Ethernet\n", snc_nec16_detect_type(myea)); |
| 213 | |
| 214 | sc->sc_dev = dev; |
| 215 | |
| 216 | sc->sncr_dcr = DCR_SYNC | DCR_WAIT0 | |
| 217 | DCR_DMABLOCK | DCR_RFT16 | DCR_TFT28; |
| 218 | sc->sncr_dcr2 = 0; /* XXX */ |
| 219 | sc->bitmode = 0; /* 16 bit card */ |
| 220 | |
| 221 | sc->sc_nic_put = snc_nec16_nic_put; |
| 222 | sc->sc_nic_get = snc_nec16_nic_get; |
| 223 | sc->sc_writetodesc = snc_nec16_writetodesc; |
| 224 | sc->sc_readfromdesc = snc_nec16_readfromdesc; |
| 225 | sc->sc_copytobuf = snc_nec16_copytobuf; |
| 226 | sc->sc_copyfrombuf = snc_nec16_copyfrombuf; |
| 227 | sc->sc_zerobuf = snc_nec16_zerobuf; |
| 228 | |
| 229 | /* sncsetup returns 1 if something fails */ |
| 230 | if (sncsetup(sc, myea)) { |
| 231 | snc_release_resources(dev); |
| 232 | return(ENOENT); |
| 233 | } |
| 234 | |
| 235 | sncconfig(sc, NULL, 0, 0, myea); |
| 236 | |
| 237 | return 0; |
| 238 | } |
| 239 | |
| 240 | /**************************************************************** |
| 241 | Shutdown routine |
| 242 | ****************************************************************/ |
| 243 | |
| 244 | void |
| 245 | snc_shutdown(dev) |
| 246 | device_t dev; |
| 247 | { |
| 248 | sncshutdown(device_get_softc(dev)); |
| 249 | } |