if_tra_mca.c revision 1.10
1/* $NetBSD: if_tra_mca.c,v 1.10 2008/04/28 20:23:53 martin Exp $ */ 2 3/*- 4 * Copyright (c) 2004 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 * Driver for Tiara LANCard/E II and friends adapted from if_ate_mca.c 34 * by Dave J. Barnes 2004. 35 */ 36 37#include <sys/cdefs.h> 38__KERNEL_RCSID(0, "$NetBSD: if_tra_mca.c,v 1.10 2008/04/28 20:23:53 martin Exp $"); 39 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/device.h> 43#include <sys/socket.h> 44#include <sys/syslog.h> 45 46#include <net/if.h> 47#include <net/if_ether.h> 48#include <net/if_media.h> 49 50#include <sys/bus.h> 51#include <sys/intr.h> 52 53#include <dev/ic/mb86950reg.h> 54#include <dev/ic/mb86950var.h> 55 56#include <dev/mca/mcavar.h> 57#include <dev/mca/mcadevs.h> 58 59int tiara_mca_match __P((struct device *, struct cfdata *, void *)); 60void tiara_mca_attach __P((struct device *, struct device *, void *)); 61 62#define TIARA_NPORTS 0x20 /* 32 */ 63#define TIARA_PROM_ID 24 /* offset to mac addr stored in prom */ 64 65struct tiara_softc { 66 struct mb86950_softc sc_mb86950; /* real "mb86950" softc */ 67 68 /* MCA-specific goo. */ 69 void *sc_ih; /* interrupt cookie */ 70}; 71 72CFATTACH_DECL(tra_mca, sizeof(struct tiara_softc), 73 tiara_mca_match, tiara_mca_attach, NULL, NULL); 74 75static const struct tiara_mca_product { 76 u_int32_t tra_prodid; /* MCA product ID */ 77 const char *tra_name; /* device name */ 78} tiara_mca_products[] = { 79 { MCA_PRODUCT_TIARA, "Tiara LANCard/E2"}, 80 { MCA_PRODUCT_TIARA_TP, "Tiara LANCard/E2 TP"}, 81 { MCA_PRODUCT_SMC3016, "SMC 3016/MC"}, 82 { 0, NULL }, 83}; 84 85static const struct tiara_mca_product *tiara_mca_lookup __P((u_int32_t)); 86 87static const struct tiara_mca_product * 88tiara_mca_lookup(id) 89 u_int32_t id; 90{ 91 const struct tiara_mca_product *tra_p; 92 93 for (tra_p = tiara_mca_products; tra_p->tra_name != NULL; tra_p++) 94 if (id == tra_p->tra_prodid) 95 return (tra_p); 96 97 return (NULL); 98} 99 100int 101tiara_mca_match(struct device *parent, struct cfdata *match, 102 void *aux) 103{ 104 struct mca_attach_args *ma = (struct mca_attach_args *) aux; 105 106 if (tiara_mca_lookup(ma->ma_id) != NULL) 107 return (1); 108 109 return (0); 110} 111 112/* see POS diagrams below for explanation */ 113static const int tiara_irq[] = { 114 3, 4, 7, 9 115}; 116static const int smc_iobase[] = { 117 0x300, 0x340, 0x360, 0x1980, 0x2000, 0x5680, 0x5900, 0x8080 118}; 119static const int smc_irq[] = { 120 9, 10, 11, 15, 3, 5, 7, 4 121}; 122 123void 124tiara_mca_attach(struct device *parent, struct device *self, void *aux) 125{ 126 struct tiara_softc *isc = device_private(self); 127 struct mb86950_softc *sc = &isc->sc_mb86950; 128 struct mca_attach_args *ma = aux; 129 bus_space_tag_t iot = ma->ma_iot; 130 bus_space_handle_t ioh; 131 u_int8_t myea[ETHER_ADDR_LEN]; 132 int pos2; 133 int iobase = 0, irq = 0; 134 const struct tiara_mca_product *tra_p; 135 136 pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2); 137 138 tra_p = tiara_mca_lookup(ma->ma_id); 139 140 switch (tra_p->tra_prodid) { 141 142 case MCA_PRODUCT_TIARA: 143 case MCA_PRODUCT_TIARA_TP: 144 /* 145 * POS register 2: (adf pos0) 146 * 7 6 5 4 3 2 1 0 147 * \_____/ \_/ \ \__ enable: 0=disabled, 1=enabled 148 * \ \ \___ boot rom: 0=disabled, 1=enabled 149 * \ \______ IRQ 00=3 01=4 10=7 11=9 150 * \_________ Base I/O Port 151 * 0000=0x1200 0001=0x1220 ... 1110=0x13c0 1111=0x13e0 152 * 153 * POS register 3: (adf pos1) not used 154 * POS register 4: (adf pos2) not used 155 * 156 * POS register 5: (adf pos3) ignored 157 * 158 * 7 6 5 4 3 2 1 0 159 * 1 1 0 X \____/ 160 * \____EPROM Address 161 */ 162 iobase = 0x1200 + ((pos2 & 0xf0) << 1); 163 irq = tiara_irq[((pos2 & 0x0c) >> 2)]; 164 165 /* XXX SWAG for number pkts. */ 166 /* My Tiara LANCard has 128K memory ?!? */ 167 sc->txb_num_pkt = 4; 168 sc->rxb_num_pkt = (65535 - 8192 - 4) / 64; 169 /* XXX */ 170 171 break; 172 173 case MCA_PRODUCT_SMC3016: 174 /* 175 * POS register 2: (adf pos0) 176 * 7 6 5 4 3 2 1 0 177 * \_____/ \___/ \__ enable: 0=disabled, 1=enabled 178 * \ \_____ I/O Address (see ioaddr table) 179 * \__________ IRQ (see irq table) 180 * 181 * POS register 3: (adf pos1) ignored 182 * 7 6 5 4 3 2 1 0 183 * X X X X \____/ 184 * \____EPROM Address (0000 = not used) 185 */ 186 iobase = smc_iobase[((pos2 & 0x0e) >> 1)]; 187 if ((pos2 & 0x80) != 0) 188 irq = smc_irq[((pos2 & 0x70) >> 4)]; 189 else { 190 aprint_error_dev(&sc->sc_dev, "unsupported irq selected\n"); 191 return; 192 } 193 194 /* XXX SWAG for number pkts. */ 195 /* The SMC3016 has a 12K rx buffer and a 4k tx buffer */ 196 sc->txb_num_pkt = 2; 197 sc->rxb_num_pkt = (12288 - 4) / 64; 198 /* XXX */ 199 200 break; 201 } 202 203 204#ifdef DIAGNOSTIC 205 tra_p = tiara_mca_lookup(ma->ma_id); 206 if (tra_p == NULL) { 207 aprint_normal("\n"); 208 aprint_error_dev(&sc->sc_dev, "where did the card go?\n"); 209 return; 210 } 211#endif 212 213 printf(" slot %d ports %#x-%#x irq %d: %s\n", ma->ma_slot + 1,iobase, iobase + TIARA_NPORTS, irq, tra_p->tra_name); 214 215 /* Map i/o space. */ 216 if (bus_space_map(iot, iobase, TIARA_NPORTS, 0, &ioh)) { 217 aprint_error_dev(&sc->sc_dev, "can't map i/o space\n"); 218 return; 219 } 220 221 sc->sc_bst = iot; 222 sc->sc_bsh = ioh; 223 224 /* Get ethernet address from PROM */ 225 bus_space_read_region_1(iot, ioh, TIARA_PROM_ID, myea, ETHER_ADDR_LEN); 226 227 /* This interface is always enabled. */ 228 /* XXX 229 sc->sc_stat |= NIC_STAT_ENABLED; 230 */ 231 232 /* 233 * Do generic MB86950 attach. 234 */ 235 mb86950_attach(sc, myea); 236 237 238 mb86950_config(sc, NULL, 0, 0); 239 240 /* Establish the interrupt handler. */ 241 isc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_NET, 242 mb86950_intr, sc); 243 if (isc->sc_ih == NULL) { 244 aprint_error_dev(&sc->sc_dev, "couldn't establish interrupt handler\n"); 245 return; 246 } 247} 248