if_ep_mca.c revision 1.1.2.2
1 /* $NetBSD: if_ep_mca.c,v 1.1.2.2 2001/03/27 15:32:06 bouyer Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jaromir Dolecek. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1997 Jonathan Stone <jonathan (at) NetBSD.org> 41 * Copyright (c) 1994 Herb Peyerl <hpeyerl (at) beer.org> 42 * All rights reserved. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice, this list of conditions and the following disclaimer. 49 * 2. Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * 3. All advertising materials mentioning features or use of this software 53 * must display the following acknowledgement: 54 * This product includes software developed by Herb Peyerl. 55 * 4. The name of Herb Peyerl may not be used to endorse or promote products 56 * derived from this software without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 63 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 64 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 65 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 66 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 67 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 68 */ 69 70 /* 71 * Driver for 3Com 3c529 cards. 72 * 73 * Known issues: 74 * - on my 386DX, speed of network is like 100KB/s at best; for bigger 75 * files fetched e.g. via ftp, I get as low as 5KB/s, mostly due 76 * to excessive number of overrun packets. Configuring system to 77 * use smaller TCP window might help, though the performance is 78 * still expected to be very dependant on CPU speed, especially 79 * since ISA and PCI attachments are reported to work OK on pentium 80 * class systems. 81 * Changing ic/elink3.c to use RX Early might help here potentially. 82 */ 83 84 #include <sys/param.h> 85 #include <sys/systm.h> 86 #include <sys/mbuf.h> 87 #include <sys/socket.h> 88 #include <sys/ioctl.h> 89 #include <sys/errno.h> 90 #include <sys/device.h> 91 92 #include <net/if.h> 93 #include <net/if_ether.h> 94 #include <net/if_media.h> 95 96 #include <machine/bus.h> 97 #include <machine/intr.h> 98 99 #include <dev/mii/miivar.h> 100 101 #include <dev/ic/elink3var.h> 102 #include <dev/ic/elink3reg.h> 103 104 #include <dev/mca/mcavar.h> 105 #include <dev/mca/mcadevs.h> 106 107 /* 108 * MCA constants. 109 */ 110 #define MCA_CBIO 0x200 /* Configuration Base IO Address */ 111 #define MCA_IOSZ 0x10 /* I/O space size */ 112 113 int ep_mca_match __P((struct device *, struct cfdata *, void *)); 114 void ep_mca_attach __P((struct device *, struct device *, void *)); 115 116 struct cfattach ep_mca_ca = { 117 sizeof(struct ep_softc), ep_mca_match, ep_mca_attach 118 }; 119 120 const struct ep_mca_product { 121 u_int32_t epp_prodid; /* MCA product ID */ 122 const char *epp_name; /* device name */ 123 } ep_mca_products[] = { 124 { MCA_PRODUCT_3C529_TP, "3c529-TP Ethernet Adapter" }, 125 { MCA_PRODUCT_3C529_TM, "3c529 Ethernet Adapter (test mode)" }, 126 { MCA_PRODUCT_3C529_2T, "3c529 Ethernet Adapter (10base2/T)" }, 127 { MCA_PRODUCT_3C529_T, "3c529 Ethernet Adapter (10baseT)" }, 128 129 { 0, NULL }, 130 }; 131 132 static const struct ep_mca_product *ep_mca_lookup 133 __P((const struct mca_attach_args *)); 134 135 static const struct ep_mca_product * 136 ep_mca_lookup(ma) 137 const struct mca_attach_args *ma; 138 { 139 const struct ep_mca_product *epp; 140 141 for (epp = ep_mca_products; epp->epp_name != NULL; epp++) 142 if (ma->ma_id == epp->epp_prodid) 143 return (epp); 144 145 return (NULL); 146 } 147 148 int 149 ep_mca_match(parent, match, aux) 150 struct device *parent; 151 struct cfdata *match; 152 void *aux; 153 { 154 struct mca_attach_args *ma = (struct mca_attach_args *) aux; 155 156 if (ep_mca_lookup(ma) != NULL) 157 return (1); 158 159 return (0); 160 } 161 162 void 163 ep_mca_attach(parent, self, aux) 164 struct device *parent, *self; 165 void *aux; 166 { 167 struct ep_softc *sc = (void *)self; 168 struct mca_attach_args *ma = aux; 169 bus_space_handle_t ioh; 170 int pos4, pos5, iobase, irq, media; 171 const struct ep_mca_product *epp; 172 173 pos4 = mca_conf_read(ma->ma_mc, ma->ma_slot, 4); 174 pos5 = mca_conf_read(ma->ma_mc, ma->ma_slot, 5); 175 176 /* 177 * POS register 2: (adf pos0) 178 * 7 6 5 4 3 2 1 0 179 * \__ enable: 0=adapter disabled, 1=adapter enabled 180 * 181 * POS register 3: (adf pos1) 182 * 183 * 7 6 5 4 3 2 1 0 184 * \________/ 185 * \_______ Boot ROM Address Range: 0=disabled 186 * X=0xc2000-0xc3fff + (x * 0x2000) 187 * 188 * POS register 4: (adf pos2) 189 * 190 * 7 6 5 4 3 2 1 0 191 * \________/ \_/ 192 * \ \__ Transceiver Type: 00=on-board (RJ45), 01=ext(AUI) 193 * \______ I/O Address Range: 0x200-0x20f + ((x>>2) * 0x400) 194 * 195 * POS register 5: (adf pos3) 196 * 197 * 7 6 5 4 3 2 1 0 198 * \____/ 199 * \__ Interrupt level 200 */ 201 202 iobase = MCA_CBIO + (((pos4 & 0xfc) >> 2) * 0x400); 203 204 /* map the pio registers */ 205 if (bus_space_map(ma->ma_iot, iobase, MCA_IOSZ, 0, &ioh)) { 206 printf("%s: unable to map i/o space\n", sc->sc_dev.dv_xname); 207 return; 208 } 209 210 sc->sc_iot = ma->ma_iot; 211 sc->sc_ioh = ioh; 212 213 epp = ep_mca_lookup(ma); 214 if (epp == NULL) { 215 printf("\n"); 216 panic("ep_mca_attach: impossible"); 217 } 218 219 printf(" slot %d: 3Com %s\n", ma->ma_slot + 1, epp->epp_name); 220 221 sc->enable = NULL; 222 sc->disable = NULL; 223 sc->enabled = 1; 224 225 sc->bustype = ELINK_BUS_MCA; 226 sc->ep_flags = 0; 227 228 if (epconfig(sc, ELINK_CHIPSET_3C509, NULL)) 229 return; 230 231 /* Map and establish the interrupt. */ 232 irq = (pos5 & 0x0f); 233 sc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_NET, epintr, sc); 234 if (sc->sc_ih == NULL) { 235 printf("%s: couldn't establish interrupt handler\n", 236 sc->sc_dev.dv_xname); 237 return; 238 } 239 printf("%s: interrupting at irq %d\n", sc->sc_dev.dv_xname, irq); 240 241 /* 242 * Set default media to be same as the one selected in POS. 243 */ 244 switch (pos4 & 0x03) { 245 case 0x00: 246 /* on-board RJ-45 */ 247 media = IFM_10_T; 248 break; 249 case 0x01: 250 /* external AUI */ 251 media = IFM_10_5; 252 break; 253 case 0x02: 254 /* undefined, should never be set */ 255 media = IFM_NONE; 256 break; 257 case 0x03: 258 /* BNC */ 259 media = IFM_10_2; 260 break; 261 } 262 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|media); 263 } 264
Indexes created Mon Oct 13 00:09:54 GMT 2025