if_ate_mca.c revision 1.21
1 /* $NetBSD: if_ate_mca.c,v 1.21 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 * Driver for ATI AT1720X MCA cards based on Fujitsu MB8696xA controller. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: if_ate_mca.c,v 1.21 2008/04/28 20:23:53 martin Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 #include <sys/socket.h> 43 #include <sys/syslog.h> 44 45 #include <net/if.h> 46 #include <net/if_ether.h> 47 #include <net/if_media.h> 48 49 #include <sys/bus.h> 50 #include <sys/intr.h> 51 52 #include <dev/ic/mb86960reg.h> 53 #include <dev/ic/mb86960var.h> 54 55 #include <dev/mca/mcavar.h> 56 #include <dev/mca/mcadevs.h> 57 58 int ate_mca_match(device_t, cfdata_t, void *); 59 void ate_mca_attach(device_t, device_t, void *); 60 static void ate_mca_detect(bus_space_tag_t, bus_space_handle_t, 61 uint8_t enaddr[ETHER_ADDR_LEN]); 62 63 #define ATE_NPORTS 0x20 64 65 struct ate_softc { 66 struct mb86960_softc sc_mb86960; /* real "mb86960" softc */ 67 68 /* MCA-specific goo. */ 69 void *sc_ih; /* interrupt cookie */ 70 }; 71 72 CFATTACH_DECL_NEW(ate_mca, sizeof(struct ate_softc), 73 ate_mca_match, ate_mca_attach, NULL, NULL); 74 75 static const struct ate_mca_product { 76 uint32_t at_prodid; /* MCA product ID */ 77 const char *at_name; /* device name */ 78 int at_type; /* device type */ 79 } ate_mca_products[] = { 80 { MCA_PRODUCT_AT1720T, "ATI AT1720T", FE_TYPE_AT1700T }, 81 { MCA_PRODUCT_AT1720BT, "ATI AT1720BT", FE_TYPE_AT1700BT }, 82 { MCA_PRODUCT_AT1720AT, "ATI AT1720AT", FE_TYPE_AT1700AT }, 83 { MCA_PRODUCT_AT1720FT, "ATI AT1720FT", FE_TYPE_AT1700FT }, 84 { 0, NULL, 0 }, 85 }; 86 87 static const struct ate_mca_product *ate_mca_lookup(uint32_t); 88 89 static const struct ate_mca_product * 90 ate_mca_lookup(uint32_t id) 91 { 92 const struct ate_mca_product *atp; 93 94 for (atp = ate_mca_products; atp->at_name != NULL; atp++) 95 if (id == atp->at_prodid) 96 return atp; 97 98 return NULL; 99 } 100 101 int 102 ate_mca_match(device_t parent, cfdata_t cf, void *aux) 103 { 104 struct mca_attach_args *ma = aux; 105 106 if (ate_mca_lookup(ma->ma_id) != NULL) 107 return 1; 108 109 return 0; 110 } 111 112 /* see POS diagrams below for explanation of these arrays' contents */ 113 static const int ats_iobase[] = { 114 0x400, 0x2400, 0x4400, 0x6400, 0x1400, 0x3400, 0x5400, 0x7400 115 }; 116 static const int ats_irq[] = { 117 3, 4, 5, 9, 10, 11, 12, 15 118 }; 119 120 void 121 ate_mca_attach(device_t parent, device_t self, void *aux) 122 { 123 struct ate_softc *isc = device_private(self); 124 struct mb86960_softc *sc = &isc->sc_mb86960; 125 struct mca_attach_args *ma = aux; 126 bus_space_tag_t iot = ma->ma_iot; 127 bus_space_handle_t ioh; 128 uint8_t myea[ETHER_ADDR_LEN]; 129 int pos3, pos4; 130 int iobase, irq; 131 const struct ate_mca_product *atp; 132 133 sc->sc_dev = self; 134 135 pos3 = mca_conf_read(ma->ma_mc, ma->ma_slot, 3); 136 pos4 = mca_conf_read(ma->ma_mc, ma->ma_slot, 4); 137 138 /* 139 * POS register 2: (adf pos0) 140 * 7 6 5 4 3 2 1 0 141 * \__ enable: 0=adapter disabled, 1=adapter enabled 142 * 143 * POS register 3: (adf pos1) 144 * 145 * 7 6 5 4 3 2 1 0 146 * \_/ \___/ \___/ 147 * \ \ \__ I/O Port Addresses: 000=0x400-0x4FF 100=0x1400- 148 * \ \ 001=0x2400 101=0x3400 010=0x4400 110=0x5400 149 * \ \ 011=0x6400 111=0x7400 150 * \ \_____ Boot ROM Memory Address 151 * \ 152 * \_________ Lower 2 bit of Interrupt Request Number 153 * 154 * POS register 4: (adf pos2) 155 * 156 * 7 6 5 4 3 2 1 0 157 * \ \_______ Twisted Pair Type: 0=100 ohm, Unshielded 158 * \ 1=150 ohm, Shielded 159 * \____________ Higher 1 bit of Interrupt Request Number: 160 * 000=3 001=4 010=5 011=9 100=10 101=11 110=12 111=15 161 */ 162 163 atp = ate_mca_lookup(ma->ma_id); 164 #ifdef DIAGNOSTIC 165 if (atp == NULL) { 166 aprint_normal("\n"); 167 aprint_error_dev(sc->sc_dev, "where did the card go?\n"); 168 return; 169 } 170 #endif 171 172 iobase = ats_iobase[pos3 & 0x7]; 173 irq = ats_irq[((pos4 & 0x40) >> 4) | ((pos3 & 0xc0) >> 6)]; 174 175 aprint_normal(" slot %d irq %d: %s\n", 176 ma->ma_slot + 1, irq, atp->at_name); 177 178 /* Map i/o space. */ 179 if (bus_space_map(iot, iobase, ATE_NPORTS, 0, &ioh)) { 180 aprint_error_dev(sc->sc_dev, "can't map i/o space\n"); 181 return; 182 } 183 184 sc->sc_bst = iot; 185 sc->sc_bsh = ioh; 186 187 /* Get ethernet address. */ 188 ate_mca_detect(iot, ioh, myea); 189 190 /* This interface is always enabled. */ 191 sc->sc_stat |= FE_STAT_ENABLED; 192 193 /* 194 * Do generic MB86960 attach. 195 */ 196 mb86960_attach(sc, myea); 197 198 mb86960_config(sc, NULL, 0, 0); 199 200 /* Establish the interrupt handler. */ 201 isc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_NET, 202 mb86960_intr, sc); 203 if (isc->sc_ih == NULL) { 204 aprint_error_dev(sc->sc_dev, 205 "couldn't establish interrupt handler\n"); 206 return; 207 } 208 } 209 210 /* 211 * Very simplified ate_detect() from dev/isa/if_ate.c, only 212 * to determine ethernet address. 213 */ 214 static void 215 ate_mca_detect(bus_space_tag_t iot, bus_space_handle_t ioh, 216 uint8_t enaddr[ETHER_ADDR_LEN]) 217 { 218 uint8_t eeprom[FE_EEPROM_SIZE]; 219 220 /* Get our station address from EEPROM. */ 221 mb86965_read_eeprom(iot, ioh, eeprom); 222 memcpy(enaddr, eeprom + FE_ATI_EEP_ADDR, ETHER_ADDR_LEN); 223 } 224
Indexes created Sun Sep 21 20:09:37 GMT 2025