1/* $NetBSD: if_ep_mca.c,v 1.21 2008/08/27 05:33:47 christos 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 1.21 2008/08/27 05:33:47 christos 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 102int ep_mca_match(device_t , cfdata_t , void *); 103void ep_mca_attach(device_t , device_t , void *); 104 105CFATTACH_DECL_NEW(ep_mca, sizeof(struct ep_softc), 106 ep_mca_match, ep_mca_attach, NULL, NULL); 107 108const 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 121static const struct ep_mca_product *ep_mca_lookup 122 (const struct mca_attach_args *); 123 124static const struct ep_mca_product * 125ep_mca_lookup(const struct mca_attach_args *ma) 126{ 127 const struct ep_mca_product *epp; 128 129 for (epp = ep_mca_products; epp->epp_name != NULL; epp++) 130 if (ma->ma_id == epp->epp_prodid) 131 return (epp); 132 133 return (NULL); 134} 135 136int 137ep_mca_match(device_t parent, cfdata_t match, void *aux) 138{ 139 struct mca_attach_args *ma = (struct mca_attach_args *) aux; 140 141 if (ep_mca_lookup(ma) != NULL) 142 return (1); 143 144 return (0); 145} 146 147void 148ep_mca_attach(device_t parent, device_t self, void *aux) 149{ 150 struct ep_softc *sc = device_private(self); 151 struct mca_attach_args *ma = aux; 152 bus_space_handle_t ioh; 153 int pos4, pos5, iobase, irq, media; 154 const struct ep_mca_product *epp; 155 156 pos4 = mca_conf_read(ma->ma_mc, ma->ma_slot, 4); 157 pos5 = mca_conf_read(ma->ma_mc, ma->ma_slot, 5); 158 159 /* 160 * POS register 2: (adf pos0) 161 * 7 6 5 4 3 2 1 0 162 * \__ enable: 0=adapter disabled, 1=adapter enabled 163 * 164 * POS register 3: (adf pos1) 165 * 166 * 7 6 5 4 3 2 1 0 167 * \________/ 168 * \_______ Boot ROM Address Range: 0=disabled 169 * X=0xc2000-0xc3fff + (x * 0x2000) 170 * 171 * POS register 4: (adf pos2) 172 * 173 * 7 6 5 4 3 2 1 0 174 * \________/ \_/ 175 * \ \__ Transceiver Type: 00=on-board (RJ45), 01=ext(AUI) 176 * \______ I/O Address Range: 0x200-0x20f + ((x>>2) * 0x400) 177 * 178 * POS register 5: (adf pos3) 179 * 180 * 7 6 5 4 3 2 1 0 181 * \____/ 182 * \__ Interrupt level 183 */ 184 185 iobase = MCA_CBIO + (((pos4 & 0xfc) >> 2) * 0x400); 186 irq = (pos5 & 0x0f); 187 188 sc->sc_dev = self; 189 /* map the pio registers */ 190 if (bus_space_map(ma->ma_iot, iobase, MCA_IOSZ, 0, &ioh)) { 191 aprint_error_dev(sc->sc_dev, "unable to map i/o space\n"); 192 return; 193 } 194 195 sc->sc_iot = ma->ma_iot; 196 sc->sc_ioh = ioh; 197 198 epp = ep_mca_lookup(ma); 199 if (epp == NULL) { 200 printf("\n"); 201 panic("ep_mca_attach: impossible"); 202 } 203 204 printf(" slot %d irq %d: 3Com %s\n", ma->ma_slot + 1, 205 irq, epp->epp_name); 206 207 sc->enable = NULL; 208 sc->disable = NULL; 209 sc->enabled = 1; 210 211 sc->bustype = ELINK_BUS_MCA; 212 sc->ep_flags = 0; 213 214 if (epconfig(sc, ELINK_CHIPSET_3C509, NULL)) 215 return; 216 217 /* Map and establish the interrupt. */ 218 sc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_NET, epintr, sc); 219 if (sc->sc_ih == NULL) { 220 aprint_error_dev(sc->sc_dev, "couldn't establish interrupt handler\n"); 221 return; 222 } 223 224 /* 225 * Set default media to be same as the one selected in POS. 226 */ 227 switch (pos4 & 0x03) { 228 case 0x00: 229 /* on-board RJ-45 */ 230 media = IFM_10_T; 231 break; 232 case 0x01: 233 /* external AUI */ 234 media = IFM_10_5; 235 break; 236 case 0x02: 237 /* undefined, should never be set */ 238 media = IFM_NONE; 239 break; 240 case 0x03: 241 /* BNC */ 242 media = IFM_10_2; 243 break; 244 default: 245 aprint_error_dev(sc->sc_dev, " cannot determine media\n"); 246 return; 247 } 248 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|media); 249} 250