1 /* $NetBSD: if_ne_mca.c,v 1.14 2008/03/12 14:31:11 cube 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/cdefs.h> 48 __KERNEL_RCSID(0, "$NetBSD: if_ne_mca.c,v 1.14 2008/03/12 14:31:11 cube Exp $"); 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/mbuf.h> 53 #include <sys/errno.h> 54 #include <sys/device.h> 55 #include <sys/protosw.h> 56 #include <sys/socket.h> 57 58 #include <net/if.h> 59 #include <net/if_types.h> 60 #include <net/if_media.h> 61 #include <net/if_ether.h> 62 63 #include <sys/bus.h> 64 65 #include <dev/ic/dp8390reg.h> 66 #include <dev/ic/dp8390var.h> 67 68 #include <dev/ic/ne2000reg.h> 69 #include <dev/ic/ne2000var.h> 70 71 #include <dev/ic/rtl80x9reg.h> 72 #include <dev/ic/rtl80x9var.h> 73 74 #include <dev/mca/mcadevs.h> 75 #include <dev/mca/mcavar.h> 76 77 #define NE2_NPORTS 0x30 78 79 struct ne_mca_softc { 80 struct ne2000_softc sc_ne2000; /* real "ne2000" softc */ 81 82 /* MCA-specific goo */ 83 void *sc_ih; /* interrupt handle */ 84 }; 85 86 int ne_mca_match(device_t, cfdata_t , void *); 87 void ne_mca_attach(device_t, device_t, void *); 88 89 CFATTACH_DECL_NEW(ne_mca, sizeof(struct ne_mca_softc), 90 ne_mca_match, ne_mca_attach, NULL, NULL); 91 92 static const struct ne_mca_products { 93 u_int32_t ne_id; 94 const char *ne_name; 95 } ne_mca_products[] = { 96 { MCA_PRODUCT_ARCOAE, "Arco Electronics AE/2 Ethernet Adapter" }, 97 { MCA_PRODUCT_NE2, "Novell NE/2 Ethernet Adapter" }, 98 { MCA_PRODUCT_CENET16, "Compex Inc. PS/2 ENET16-MC/P Microchannel Ad."}, 99 { 0, NULL } 100 }; 101 102 static const struct ne_mca_products *ne_mca_lookup(int id); 103 104 static const struct ne_mca_products * 105 ne_mca_lookup(int id) 106 { 107 const struct ne_mca_products *np; 108 109 for(np = ne_mca_products; np->ne_name; np++) 110 if (id == np->ne_id) 111 return (np); 112 113 return (NULL); 114 } 115 116 int 117 ne_mca_match(device_t parent, cfdata_t cf, void *aux) 118 { 119 struct mca_attach_args *ma = aux; 120 121 if (ne_mca_lookup(ma->ma_id)) 122 return (1); 123 124 return (0); 125 } 126 127 /* These values were taken from NE/2 ADF file */ 128 static const int ne_mca_irq[] = { 129 3, 4, 5, 9 130 }; 131 static const int ne_mca_iobase[] = { 132 0, 0x1000, 0x2020, 0x8020, 0xa0a0, 0xb0b0, 0xc0c0, 0xc3d0 133 }; 134 135 void 136 ne_mca_attach(device_t parent, device_t self, void *aux) 137 { 138 struct ne_mca_softc *psc = device_private(self); 139 struct ne2000_softc *nsc = &psc->sc_ne2000; 140 struct dp8390_softc *dsc = &nsc->sc_dp8390; 141 struct mca_attach_args *ma = aux; 142 bus_space_tag_t nict; 143 bus_space_handle_t nich; 144 bus_space_tag_t asict; 145 bus_space_handle_t asich; 146 int pos2, iobase, irq; 147 const struct ne_mca_products *np; 148 149 dsc->sc_dev = self; 150 151 pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2); 152 153 /* 154 * POS register 2: (adf pos0) 155 * 156 * 7 6 5 4 3 2 1 0 157 * \_/ | \___/ \__ enable: 0=adapter disabled, 1=adapter enabled 158 * | | \____ I/O, Mem: 001=0x1000-0x102f 010=0x2020-0x204f 159 * | | 011=0x8020-0x804f 100=0xa0a0-0xa0cf 160 * | | 101=0xb0b0-0xb0df 110=0xc0c0-0xc0ef 161 * \ \ 111=0xc3d0-0xc3ff 162 * \ \________ Boot Rom: 1=disabled 0=enabled 163 * \__________ Interrupt level: 00=3 01=4 10=5 11=9 164 */ 165 166 np = ne_mca_lookup(ma->ma_id); 167 168 iobase = ne_mca_iobase[(pos2 & 0x0e) >> 1]; 169 irq = ne_mca_irq[(pos2 & 0x60) >> 5]; 170 171 aprint_normal(" slot %d irq %d: %s\n", ma->ma_slot + 1, irq, 172 np->ne_name); 173 174 nict = ma->ma_iot; 175 176 /* Map the device. */ 177 if (bus_space_map(nict, iobase, NE2_NPORTS, 0, &nich)) { 178 aprint_error_dev(self, "can't map i/o space\n"); 179 return; 180 } 181 182 asict = nict; 183 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET, 184 NE2000_ASIC_NPORTS, &asich)) { 185 aprint_error_dev(self, "can't subregion i/o space\n"); 186 return; 187 } 188 189 dsc->sc_regt = nict; 190 dsc->sc_regh = nich; 191 192 nsc->sc_asict = asict; 193 nsc->sc_asich = asich; 194 195 /* This interface is always enabled. */ 196 dsc->sc_enabled = 1; 197 198 dsc->sc_mediachange = NULL; 199 dsc->sc_mediastatus = NULL; 200 dsc->sc_media_init = NULL; 201 dsc->init_card = NULL; 202 203 /* 204 * This is necessary for NE/2. Hopefully the other clones also work 205 * this way. 206 */ 207 nsc->sc_type = NE2000_TYPE_AX88190; 208 209 /* 210 * Do generic NE2000 attach. This will read the station address 211 * from the EEPROM. 212 */ 213 if (ne2000_attach(nsc, NULL)) 214 return; 215 216 /* establish interrupt handler */ 217 psc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_NET, dp8390_intr, 218 dsc); 219 if (psc->sc_ih == NULL) { 220 aprint_error_dev(self, 221 "couldn't establish interrupt handler\n"); 222 return; 223 } 224 } 225