1/* $NetBSD: if_ne_intio.c,v 1.20 2024/01/06 05:16:57 isaki Exp $ */ 2 3/* 4 * Copyright (c) 2001 Tetsuya Isaki. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28/* 29 * Ethernet part of Nereid Ethernet/USB/Memory board 30 */ 31 32#include <sys/cdefs.h> 33__KERNEL_RCSID(0, "$NetBSD: if_ne_intio.c,v 1.20 2024/01/06 05:16:57 isaki Exp $"); 34 35#include "opt_inet.h" 36#include "opt_ns.h" 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/mbuf.h> 41#include <sys/socket.h> 42#include <sys/select.h> 43#include <sys/device.h> 44 45#include <net/if.h> 46#include <net/if_dl.h> 47#include <net/if_ether.h> 48#include <net/if_media.h> 49 50#ifdef INET 51#include <netinet/in.h> 52#include <netinet/in_systm.h> 53#include <netinet/in_var.h> 54#include <netinet/ip.h> 55#include <netinet/if_inarp.h> 56#endif 57 58#if BPFILTER > 0 59#include <net/bpf.h> 60#endif 61 62#include <machine/bus.h> 63#include <machine/cpu.h> 64 65#include <dev/ic/dp8390reg.h> 66#include <dev/ic/dp8390var.h> 67#include <dev/ic/ne2000reg.h> 68#include <dev/ic/ne2000var.h> 69 70#include <arch/x68k/dev/intiovar.h> 71 72#define NE_INTIO_ADDR (0xece300) 73#define NE_INTIO_ADDR2 (0xeceb00) 74#define NE_INTIO_INTR (0xf9) 75#define NE_INTIO_INTR2 (0xf8) 76 77static int ne_intio_match(device_t, cfdata_t, void *); 78static void ne_intio_attach(device_t, device_t, void *); 79 80#define ne_intio_softc ne2000_softc 81 82CFATTACH_DECL_NEW(ne_intio, sizeof(struct ne_intio_softc), 83 ne_intio_match, ne_intio_attach, NULL, NULL); 84 85static int 86ne_intio_match(device_t parent, cfdata_t cf, void *aux) 87{ 88 struct intio_attach_args *ia = aux; 89 bus_space_tag_t iot = ia->ia_bst; 90 bus_space_handle_t ioh; 91 bus_space_tag_t asict; 92 bus_space_handle_t asich; 93 int rv = 0; 94 95 if (ia->ia_addr == INTIOCF_ADDR_DEFAULT) 96 ia->ia_addr = NE_INTIO_ADDR; 97 if (ia->ia_intr == INTIOCF_INTR_DEFAULT) 98 ia->ia_intr = NE_INTIO_INTR; 99 100 /* fixed parameters */ 101 if (!(ia->ia_addr == NE_INTIO_ADDR && ia->ia_intr == NE_INTIO_INTR ) && 102 !(ia->ia_addr == NE_INTIO_ADDR2 && ia->ia_intr == NE_INTIO_INTR2) ) 103 return 0; 104 105 /* Make sure this is a valid NE2000 I/O address */ 106 if ((ia->ia_addr & 0x1f) != 0) 107 return 0; 108 109 /* Check whether the board is inserted or not */ 110 if (badaddr((void *)IIOV(ia->ia_addr))) 111 return 0; 112 113 /* Map I/O space */ 114 if (bus_space_map(iot, ia->ia_addr, NE2000_NPORTS * 2, 115 BUS_SPACE_MAP_SHIFTED_EVEN, &ioh)) 116 return 0; 117 118 asict = iot; 119 if (bus_space_subregion(iot, ioh, NE2000_ASIC_OFFSET * 2, 120 NE2000_ASIC_NPORTS * 2, &asich)) 121 goto out; 122 123 /* Look for an NE2000 compatible card */ 124 rv = ne2000_detect(iot, ioh, asict, asich); 125 126 out: 127 bus_space_unmap(iot, ioh, NE2000_NPORTS); 128 return (rv != 0) ? 1 : 0; 129} 130 131static void 132ne_intio_attach(device_t parent, device_t self, void *aux) 133{ 134 struct ne_intio_softc *sc = device_private(self); 135 struct dp8390_softc *dsc = &sc->sc_dp8390; 136 struct intio_attach_args *ia = aux; 137 bus_space_tag_t iot = ia->ia_bst; 138 bus_space_handle_t ioh; 139 bus_space_tag_t asict; 140 bus_space_handle_t asich; 141 const char *typestr; 142 int netype; 143 144 dsc->sc_dev = self; 145 aprint_normal(": Nereid Ethernet\n"); 146 147 /* Map I/O space */ 148 if (bus_space_map(iot, ia->ia_addr, NE2000_NPORTS * 2, 149 BUS_SPACE_MAP_SHIFTED_EVEN, &ioh)) { 150 aprint_error_dev(self, "can't map I/O space\n"); 151 return; 152 } 153 154 asict = iot; 155 if (bus_space_subregion(iot, ioh, NE2000_ASIC_OFFSET * 2, 156 NE2000_ASIC_NPORTS * 2, &asich)) { 157 aprint_error_dev(self, "can't subregion I/O space\n"); 158 return; 159 } 160 161 dsc->sc_regt = iot; 162 dsc->sc_regh = ioh; 163 164 sc->sc_asict = asict; 165 sc->sc_asich = asich; 166 167 /* 168 * detect it again, so we can print some information about 169 * the interface. 170 * XXX: Should I check NE1000 or NE2000 for Nereid? 171 */ 172 netype = ne2000_detect(iot, ioh, asict, asich); 173 switch (netype) { 174 case NE2000_TYPE_NE1000: 175 typestr = "NE1000"; 176 break; 177 178 case NE2000_TYPE_NE2000: 179 typestr = "NE2000"; 180 break; 181 182 case NE2000_TYPE_RTL8019: 183 typestr = "NE2000 (RTL8019)"; 184 break; 185 186 default: 187 aprint_error_dev(self, "where did the card go?!\n"); 188 return; 189 } 190 191 aprint_normal_dev(self, "%s Ethernet\n", typestr); 192 193 /* This interface is always enabled */ 194 dsc->sc_enabled = 1; 195 196 /* 197 * Do generic NE2000 attach. 198 * This will read the mac address from the EEPROM. 199 */ 200 ne2000_attach(sc, NULL); 201 202 /* Establish the interrupt handler */ 203 if (intio_intr_establish(ia->ia_intr, "ne", dp8390_intr, dsc)) 204 aprint_error_dev(self, 205 "couldn't establish interrupt handler\n"); 206} 207