1 /* $NetBSD: if_ep_mca.c,v 1.20 2008/04/28 20:23:53 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1997 Jonathan Stone <jonathan@NetBSD.org> 34 * Copyright (c) 1994 Herb Peyerl <hpeyerl@beer.org> 35 * All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by Herb Peyerl. 48 * 4. The name of Herb Peyerl may not be used to endorse or promote products 49 * derived from this software without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 52 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 53 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 54 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 55 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 56 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 60 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 61 */ 62 63 /* 64 * Driver for 3Com 3c529 cards. 65 * 66 * If you encouter sucky performance, try kernel without DEBUG/DIAGNOSTIC. 67 * This helped on my test machine to change the performance of the card 68 * from like 5KB/s to like 800 KB/s. 69 */ 70 71 #include <sys/cdefs.h> 72 __KERNEL_RCSID(0, "$NetBSD: if_ep_mca.c,v 1.20 2008/04/28 20:23:53 martin Exp $"); 73 74 #include <sys/param.h> 75 #include <sys/systm.h> 76 #include <sys/mbuf.h> 77 #include <sys/socket.h> 78 #include <sys/ioctl.h> 79 #include <sys/errno.h> 80 #include <sys/device.h> 81 82 #include <net/if.h> 83 #include <net/if_ether.h> 84 #include <net/if_media.h> 85 86 #include <sys/bus.h> 87 88 #include <dev/mii/miivar.h> 89 90 #include <dev/ic/elink3var.h> 91 #include <dev/ic/elink3reg.h> 92 93 #include <dev/mca/mcavar.h> 94 #include <dev/mca/mcadevs.h> 95 96 /* 97 * MCA constants. 98 */ 99 #define MCA_CBIO 0x200 /* Configuration Base IO Address */ 100 #define MCA_IOSZ 0x10 /* I/O space size */ 101 102 int ep_mca_match(struct device *, struct cfdata *, void *); 103 void ep_mca_attach(struct device *, struct device *, void *); 104 105 CFATTACH_DECL(ep_mca, sizeof(struct ep_softc), 106 ep_mca_match, ep_mca_attach, NULL, NULL); 107 108 const struct ep_mca_product { 109 u_int32_t epp_prodid; /* MCA product ID */ 110 const char *epp_name; /* device name */ 111 } ep_mca_products[] = { 112 { MCA_PRODUCT_3C529, "3C529 Ethernet Adapter" }, 113 { MCA_PRODUCT_3C529_TP, "3c529-TP Ethernet Adapter" }, 114 { MCA_PRODUCT_3C529_TM, "3c529 Ethernet Adapter (test mode)" }, 115 { MCA_PRODUCT_3C529_2T, "3c529 Ethernet Adapter (10base2/T)" }, 116 { MCA_PRODUCT_3C529_T, "3c529 Ethernet Adapter (10baseT)" }, 117 118 { 0, NULL }, 119 }; 120 121 static const struct ep_mca_product *ep_mca_lookup 122 (const struct mca_attach_args *); 123 124 static const struct ep_mca_product * 125 ep_mca_lookup(ma) 126 const struct mca_attach_args *ma; 127 { 128 const struct ep_mca_product *epp; 129 130 for (epp = ep_mca_products; epp->epp_name != NULL; epp++) 131 if (ma->ma_id == epp->epp_prodid) 132 return (epp); 133 134 return (NULL); 135 } 136 137 int 138 ep_mca_match(struct device *parent, struct cfdata *match, 139 void *aux) 140 { 141 struct mca_attach_args *ma = (struct mca_attach_args *) aux; 142 143 if (ep_mca_lookup(ma) != NULL) 144 return (1); 145 146 return (0); 147 } 148 149 void 150 ep_mca_attach(struct device *parent, struct device *self, void *aux) 151 { 152 struct ep_softc *sc = device_private(self); 153 struct mca_attach_args *ma = aux; 154 bus_space_handle_t ioh; 155 int pos4, pos5, iobase, irq, media; 156 const struct ep_mca_product *epp; 157 158 pos4 = mca_conf_read(ma->ma_mc, ma->ma_slot, 4); 159 pos5 = mca_conf_read(ma->ma_mc, ma->ma_slot, 5); 160 161 /* 162 * POS register 2: (adf pos0) 163 * 7 6 5 4 3 2 1 0 164 * \__ enable: 0=adapter disabled, 1=adapter enabled 165 * 166 * POS register 3: (adf pos1) 167 * 168 * 7 6 5 4 3 2 1 0 169 * \________/ 170 * \_______ Boot ROM Address Range: 0=disabled 171 * X=0xc2000-0xc3fff + (x * 0x2000) 172 * 173 * POS register 4: (adf pos2) 174 * 175 * 7 6 5 4 3 2 1 0 176 * \________/ \_/ 177 * \ \__ Transceiver Type: 00=on-board (RJ45), 01=ext(AUI) 178 * \______ I/O Address Range: 0x200-0x20f + ((x>>2) * 0x400) 179 * 180 * POS register 5: (adf pos3) 181 * 182 * 7 6 5 4 3 2 1 0 183 * \____/ 184 * \__ Interrupt level 185 */ 186 187 iobase = MCA_CBIO + (((pos4 & 0xfc) >> 2) * 0x400); 188 irq = (pos5 & 0x0f); 189 190 /* map the pio registers */ 191 if (bus_space_map(ma->ma_iot, iobase, MCA_IOSZ, 0, &ioh)) { 192 aprint_error_dev(&sc->sc_dev, "unable to map i/o space\n"); 193 return; 194 } 195 196 sc->sc_iot = ma->ma_iot; 197 sc->sc_ioh = ioh; 198 199 epp = ep_mca_lookup(ma); 200 if (epp == NULL) { 201 printf("\n"); 202 panic("ep_mca_attach: impossible"); 203 } 204 205 printf(" slot %d irq %d: 3Com %s\n", ma->ma_slot + 1, 206 irq, epp->epp_name); 207 208 sc->enable = NULL; 209 sc->disable = NULL; 210 sc->enabled = 1; 211 212 sc->bustype = ELINK_BUS_MCA; 213 sc->ep_flags = 0; 214 215 if (epconfig(sc, ELINK_CHIPSET_3C509, NULL)) 216 return; 217 218 /* Map and establish the interrupt. */ 219 sc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_NET, epintr, sc); 220 if (sc->sc_ih == NULL) { 221 aprint_error_dev(&sc->sc_dev, "couldn't establish interrupt handler\n"); 222 return; 223 } 224 225 /* 226 * Set default media to be same as the one selected in POS. 227 */ 228 switch (pos4 & 0x03) { 229 case 0x00: 230 /* on-board RJ-45 */ 231 media = IFM_10_T; 232 break; 233 case 0x01: 234 /* external AUI */ 235 media = IFM_10_5; 236 break; 237 case 0x02: 238 /* undefined, should never be set */ 239 media = IFM_NONE; 240 break; 241 case 0x03: 242 /* BNC */ 243 media = IFM_10_2; 244 break; 245 default: 246 aprint_error_dev(&sc->sc_dev, " cannot determine media\n"); 247 return; 248 } 249 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|media); 250 } 251