if_ne_mca.c revision 1.2
1 /* $NetBSD: if_ne_mca.c,v 1.2 2001/04/23 06:10:08 jdolecek 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 * 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 Novell NE/2 Ethernet Adapter (and clones). 41 * 42 * According to Linux ne2 driver, Arco and Compex card should be also 43 * supported by this driver. However, NetBSD driver was only tested 44 * with the Novell adapter so far. 45 */ 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/mbuf.h> 50 #include <sys/errno.h> 51 #include <sys/device.h> 52 #include <sys/protosw.h> 53 #include <sys/socket.h> 54 55 #include <net/if.h> 56 #include <net/if_types.h> 57 #include <net/if_media.h> 58 #include <net/if_ether.h> 59 60 #include <machine/bus.h> 61 62 #include <dev/ic/dp8390reg.h> 63 #include <dev/ic/dp8390var.h> 64 65 #include <dev/ic/ne2000reg.h> 66 #include <dev/ic/ne2000var.h> 67 68 #include <dev/ic/rtl80x9reg.h> 69 #include <dev/ic/rtl80x9var.h> 70 71 #include <dev/mca/mcadevs.h> 72 #include <dev/mca/mcavar.h> 73 74 #define NE2_NPORTS 0x30 75 76 struct ne_mca_softc { 77 struct ne2000_softc sc_ne2000; /* real "ne2000" softc */ 78 79 /* MCA-specific goo */ 80 void *sc_ih; /* interrupt handle */ 81 }; 82 83 int ne_mca_match __P((struct device *, struct cfdata *, void *)); 84 void ne_mca_attach __P((struct device *, struct device *, void *)); 85 86 struct cfattach ne_mca_ca = { 87 sizeof(struct ne_mca_softc), ne_mca_match, ne_mca_attach 88 }; 89 90 static const struct ne_mca_products { 91 u_int32_t ne_id; 92 const char *ne_name; 93 } ne_mca_products[] = { 94 { MCA_PRODUCT_ARCOAE, "Arco Electronics AE/2 Ethernet Adapter" }, 95 { MCA_PRODUCT_NE2, "Novell NE/2 Ethernet Adapter" }, 96 { MCA_PRODUCT_CENET16, "Compex Inc. PS/2 ENET16-MC/P Microchannel Ad."}, 97 { 0, NULL } 98 }; 99 100 static const struct ne_mca_products *ne_mca_lookup __P((int id)); 101 102 static const struct ne_mca_products * 103 ne_mca_lookup(int id) 104 { 105 const struct ne_mca_products *np; 106 107 for(np = ne_mca_products; np->ne_name; np++) 108 if (id == np->ne_id) 109 return (np); 110 111 return (NULL); 112 } 113 114 int 115 ne_mca_match(struct device *parent, struct cfdata *cf, void *aux) 116 { 117 struct mca_attach_args *ma = aux; 118 119 if (ne_mca_lookup(ma->ma_id)) 120 return (1); 121 122 return (0); 123 } 124 125 /* These values were taken from NE/2 ADF file */ 126 static const int ne_mca_irq[] = { 127 3, 4, 5, 9 128 }; 129 static const int ne_mca_iobase[] = { 130 0, 0x1000, 0x2020, 0x8020, 0xa0a0, 0xb0b0, 0xc0c0, 0xc3d0 131 }; 132 133 void 134 ne_mca_attach(struct device *parent, struct device *self, void *aux) 135 { 136 struct ne_mca_softc *psc = (struct ne_mca_softc *)self; 137 struct ne2000_softc *nsc = &psc->sc_ne2000; 138 struct dp8390_softc *dsc = &nsc->sc_dp8390; 139 struct mca_attach_args *ma = aux; 140 bus_space_tag_t nict; 141 bus_space_handle_t nich; 142 bus_space_tag_t asict; 143 bus_space_handle_t asich; 144 int pos2, iobase, irq; 145 const struct ne_mca_products *np; 146 147 pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2); 148 149 /* 150 * POS register 2: (adf pos0) 151 * 152 * 7 6 5 4 3 2 1 0 153 * \_/ | \___/ \__ enable: 0=adapter disabled, 1=adapter enabled 154 * | | \____ I/O, Mem: 001=0x1000-0x102f 010=0x2020-0x204f 155 * | | 011=0x8020-0x804f 100=0xa0a0-0xa0cf 156 * | | 101=0xb0b0-0xb0df 110=0xc0c0-0xc0ef 157 * \ \ 111=0xc3d0-0xc3ff 158 * \ \________ Boot Rom: 1=disabled 0=enabled 159 * \__________ Interrupt level: 00=3 01=4 10=5 11=9 160 */ 161 162 np = ne_mca_lookup(ma->ma_id); 163 164 iobase = ne_mca_iobase[(pos2 & 0x0e) >> 1]; 165 irq = ne_mca_irq[(pos2 & 0x60) >> 5]; 166 167 printf(" slot %d irq %d: %s\n", ma->ma_slot + 1, irq, np->ne_name); 168 169 nict = ma->ma_iot; 170 171 /* Map the device. */ 172 if (bus_space_map(nict, iobase, NE2_NPORTS, 0, &nich)) { 173 printf("%s: can't map i/o space\n", dsc->sc_dev.dv_xname); 174 return; 175 } 176 177 asict = nict; 178 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET, 179 NE2000_ASIC_NPORTS, &asich)) { 180 printf("%s: can't subregion i/o space\n", dsc->sc_dev.dv_xname); 181 return; 182 } 183 184 dsc->sc_regt = nict; 185 dsc->sc_regh = nich; 186 187 nsc->sc_asict = asict; 188 nsc->sc_asich = asich; 189 190 /* This interface is always enabled. */ 191 dsc->sc_enabled = 1; 192 193 dsc->sc_mediachange = NULL; 194 dsc->sc_mediastatus = NULL; 195 dsc->sc_media_init = NULL; 196 dsc->init_card = NULL; 197 198 /* 199 * This is necessary for NE/2. Hopefully the other clones also work 200 * this way. 201 */ 202 nsc->sc_type = NE2000_TYPE_AX88190; 203 204 /* 205 * Do generic NE2000 attach. This will read the station address 206 * from the EEPROM. 207 */ 208 if (ne2000_attach(nsc, NULL)) 209 return; 210 211 /* establish interrupt handler */ 212 psc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_NET, dp8390_intr, 213 dsc); 214 if (psc->sc_ih == NULL) { 215 printf("%s: couldn't establish interrupt handler\n", 216 dsc->sc_dev.dv_xname); 217 return; 218 } 219 } 220
Indexes created Tue Sep 23 14:10:03 GMT 2025