1 /* $NetBSD: if_tra_mca.c,v 1.8 2007/10/19 12:00:35 ad 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 * 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 * Driver for Tiara LANCard/E II and friends adapted from if_ate_mca.c 41 * by Dave J. Barnes 2004. 42 */ 43 44 #include <sys/cdefs.h> 45 __KERNEL_RCSID(0, "$NetBSD: if_tra_mca.c,v 1.8 2007/10/19 12:00:35 ad Exp $"); 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/device.h> 50 #include <sys/socket.h> 51 #include <sys/syslog.h> 52 53 #include <net/if.h> 54 #include <net/if_ether.h> 55 #include <net/if_media.h> 56 57 #include <sys/bus.h> 58 #include <sys/intr.h> 59 60 #include <dev/ic/mb86950reg.h> 61 #include <dev/ic/mb86950var.h> 62 63 #include <dev/mca/mcavar.h> 64 #include <dev/mca/mcadevs.h> 65 66 int tiara_mca_match __P((struct device *, struct cfdata *, void *)); 67 void tiara_mca_attach __P((struct device *, struct device *, void *)); 68 69 #define TIARA_NPORTS 0x20 /* 32 */ 70 #define TIARA_PROM_ID 24 /* offset to mac addr stored in prom */ 71 72 struct tiara_softc { 73 struct mb86950_softc sc_mb86950; /* real "mb86950" softc */ 74 75 /* MCA-specific goo. */ 76 void *sc_ih; /* interrupt cookie */ 77 }; 78 79 CFATTACH_DECL(tra_mca, sizeof(struct tiara_softc), 80 tiara_mca_match, tiara_mca_attach, NULL, NULL); 81 82 static const struct tiara_mca_product { 83 u_int32_t tra_prodid; /* MCA product ID */ 84 const char *tra_name; /* device name */ 85 } tiara_mca_products[] = { 86 { MCA_PRODUCT_TIARA, "Tiara LANCard/E2"}, 87 { MCA_PRODUCT_TIARA_TP, "Tiara LANCard/E2 TP"}, 88 { MCA_PRODUCT_SMC3016, "SMC 3016/MC"}, 89 { 0, NULL }, 90 }; 91 92 static const struct tiara_mca_product *tiara_mca_lookup __P((u_int32_t)); 93 94 static const struct tiara_mca_product * 95 tiara_mca_lookup(id) 96 u_int32_t id; 97 { 98 const struct tiara_mca_product *tra_p; 99 100 for (tra_p = tiara_mca_products; tra_p->tra_name != NULL; tra_p++) 101 if (id == tra_p->tra_prodid) 102 return (tra_p); 103 104 return (NULL); 105 } 106 107 int 108 tiara_mca_match(struct device *parent, struct cfdata *match, 109 void *aux) 110 { 111 struct mca_attach_args *ma = (struct mca_attach_args *) aux; 112 113 if (tiara_mca_lookup(ma->ma_id) != NULL) 114 return (1); 115 116 return (0); 117 } 118 119 /* see POS diagrams below for explanation */ 120 static const int tiara_irq[] = { 121 3, 4, 7, 9 122 }; 123 static const int smc_iobase[] = { 124 0x300, 0x340, 0x360, 0x1980, 0x2000, 0x5680, 0x5900, 0x8080 125 }; 126 static const int smc_irq[] = { 127 9, 10, 11, 15, 3, 5, 7, 4 128 }; 129 130 void 131 tiara_mca_attach(struct device *parent, struct device *self, void *aux) 132 { 133 struct tiara_softc *isc = device_private(self); 134 struct mb86950_softc *sc = &isc->sc_mb86950; 135 struct mca_attach_args *ma = aux; 136 bus_space_tag_t iot = ma->ma_iot; 137 bus_space_handle_t ioh; 138 u_int8_t myea[ETHER_ADDR_LEN]; 139 int pos2; 140 int iobase = 0, irq = 0; 141 const struct tiara_mca_product *tra_p; 142 143 pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2); 144 145 tra_p = tiara_mca_lookup(ma->ma_id); 146 147 switch (tra_p->tra_prodid) { 148 149 case MCA_PRODUCT_TIARA: 150 case MCA_PRODUCT_TIARA_TP: 151 /* 152 * POS register 2: (adf pos0) 153 * 7 6 5 4 3 2 1 0 154 * \_____/ \_/ \ \__ enable: 0=disabled, 1=enabled 155 * \ \ \___ boot rom: 0=disabled, 1=enabled 156 * \ \______ IRQ 00=3 01=4 10=7 11=9 157 * \_________ Base I/O Port 158 * 0000=0x1200 0001=0x1220 ... 1110=0x13c0 1111=0x13e0 159 * 160 * POS register 3: (adf pos1) not used 161 * POS register 4: (adf pos2) not used 162 * 163 * POS register 5: (adf pos3) ignored 164 * 165 * 7 6 5 4 3 2 1 0 166 * 1 1 0 X \____/ 167 * \____EPROM Address 168 */ 169 iobase = 0x1200 + ((pos2 & 0xf0) << 1); 170 irq = tiara_irq[((pos2 & 0x0c) >> 2)]; 171 172 /* XXX SWAG for number pkts. */ 173 /* My Tiara LANCard has 128K memory ?!? */ 174 sc->txb_num_pkt = 4; 175 sc->rxb_num_pkt = (65535 - 8192 - 4) / 64; 176 /* XXX */ 177 178 break; 179 180 case MCA_PRODUCT_SMC3016: 181 /* 182 * POS register 2: (adf pos0) 183 * 7 6 5 4 3 2 1 0 184 * \_____/ \___/ \__ enable: 0=disabled, 1=enabled 185 * \ \_____ I/O Address (see ioaddr table) 186 * \__________ IRQ (see irq table) 187 * 188 * POS register 3: (adf pos1) ignored 189 * 7 6 5 4 3 2 1 0 190 * X X X X \____/ 191 * \____EPROM Address (0000 = not used) 192 */ 193 iobase = smc_iobase[((pos2 & 0x0e) >> 1)]; 194 if ((pos2 & 0x80) != 0) 195 irq = smc_irq[((pos2 & 0x70) >> 4)]; 196 else { 197 printf("%s: unsupported irq selected\n", 198 sc->sc_dev.dv_xname); 199 return; 200 } 201 202 /* XXX SWAG for number pkts. */ 203 /* The SMC3016 has a 12K rx buffer and a 4k tx buffer */ 204 sc->txb_num_pkt = 2; 205 sc->rxb_num_pkt = (12288 - 4) / 64; 206 /* XXX */ 207 208 break; 209 } 210 211 212 #ifdef DIAGNOSTIC 213 tra_p = tiara_mca_lookup(ma->ma_id); 214 if (tra_p == NULL) { 215 printf("\n%s: where did the card go?\n", sc->sc_dev.dv_xname); 216 return; 217 } 218 #endif 219 220 printf(" slot %d ports %#x-%#x irq %d: %s\n", ma->ma_slot + 1,iobase, iobase + TIARA_NPORTS, irq, tra_p->tra_name); 221 222 /* Map i/o space. */ 223 if (bus_space_map(iot, iobase, TIARA_NPORTS, 0, &ioh)) { 224 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 225 return; 226 } 227 228 sc->sc_bst = iot; 229 sc->sc_bsh = ioh; 230 231 /* Get ethernet address from PROM */ 232 bus_space_read_region_1(iot, ioh, TIARA_PROM_ID, myea, ETHER_ADDR_LEN); 233 234 /* This interface is always enabled. */ 235 /* XXX 236 sc->sc_stat |= NIC_STAT_ENABLED; 237 */ 238 239 /* 240 * Do generic MB86950 attach. 241 */ 242 mb86950_attach(sc, myea); 243 244 245 mb86950_config(sc, NULL, 0, 0); 246 247 /* Establish the interrupt handler. */ 248 isc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_NET, 249 mb86950_intr, sc); 250 if (isc->sc_ih == NULL) { 251 printf("%s: couldn't establish interrupt handler\n", 252 sc->sc_dev.dv_xname); 253 return; 254 } 255 } 256