1 /* $NetBSD: if_ne_intio.c,v 1.12 2008/12/18 05:56:42 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 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Ethernet part of Nereid Ethernet/USB/Memory board 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: if_ne_intio.c,v 1.12 2008/12/18 05:56:42 isaki Exp $"); 36 37 #include "opt_inet.h" 38 #include "opt_ns.h" 39 #include "bpfilter.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/mbuf.h> 44 #include <sys/socket.h> 45 #include <sys/select.h> 46 #include <sys/device.h> 47 48 #include <net/if.h> 49 #include <net/if_dl.h> 50 #include <net/if_ether.h> 51 #include <net/if_media.h> 52 53 #ifdef INET 54 #include <netinet/in.h> 55 #include <netinet/in_systm.h> 56 #include <netinet/in_var.h> 57 #include <netinet/ip.h> 58 #include <netinet/if_inarp.h> 59 #endif 60 61 #ifdef NS 62 #include <netns/ns.h> 63 #include <netns/ns_if.h> 64 #endif 65 66 #if BPFILTER > 0 67 #include <net/bpf.h> 68 #include <net/bpfdesc.h> 69 #endif 70 71 #include <machine/bus.h> 72 #include <machine/cpu.h> 73 74 #include <dev/ic/dp8390reg.h> 75 #include <dev/ic/dp8390var.h> 76 #include <dev/ic/ne2000reg.h> 77 #include <dev/ic/ne2000var.h> 78 #include <dev/ic/rtl80x9reg.h> 79 #include <dev/ic/rtl80x9var.h> 80 81 #include <arch/x68k/dev/intiovar.h> 82 83 #define NE_INTIO_ADDR (0xece300) 84 #define NE_INTIO_ADDR2 (0xeceb00) 85 #define NE_INTIO_INTR (0xf9) 86 #define NE_INTIO_INTR2 (0xf8) 87 88 static int ne_intio_match(device_t, cfdata_t, void *); 89 static void ne_intio_attach(device_t, device_t, void *); 90 static int ne_intio_intr(void *); 91 92 #define ne_intio_softc ne2000_softc 93 94 CFATTACH_DECL_NEW(ne_intio, sizeof(struct ne_intio_softc), 95 ne_intio_match, ne_intio_attach, NULL, NULL); 96 97 static int 98 ne_intio_match(device_t parent, cfdata_t cf, void *aux) 99 { 100 struct intio_attach_args *ia = aux; 101 bus_space_tag_t iot = ia->ia_bst; 102 bus_space_handle_t ioh; 103 bus_space_tag_t asict; 104 bus_space_handle_t asich; 105 int rv = 0; 106 107 if (ia->ia_addr == INTIOCF_ADDR_DEFAULT) 108 ia->ia_addr = NE_INTIO_ADDR; 109 if (ia->ia_intr == INTIOCF_INTR_DEFAULT) 110 ia->ia_intr = NE_INTIO_INTR; 111 112 /* fixed parameters */ 113 if (!(ia->ia_addr == NE_INTIO_ADDR && ia->ia_intr == NE_INTIO_INTR ) && 114 !(ia->ia_addr == NE_INTIO_ADDR2 && ia->ia_intr == NE_INTIO_INTR2) ) 115 return 0; 116 117 /* Make sure this is a valid NE2000 I/O address */ 118 if ((ia->ia_addr & 0x1f) != 0) 119 return 0; 120 121 /* Check whether the board is inserted or not */ 122 if (badaddr((void *)IIOV(ia->ia_addr))) 123 return 0; 124 125 /* Map I/O space */ 126 if (bus_space_map(iot, ia->ia_addr, NE2000_NPORTS*2, 127 BUS_SPACE_MAP_SHIFTED_EVEN, &ioh)) 128 return 0; 129 130 asict = iot; 131 if (bus_space_subregion(iot, ioh, NE2000_ASIC_OFFSET*2, 132 NE2000_ASIC_NPORTS*2, &asich)) 133 goto out; 134 135 /* Look for an NE2000 compatible card */ 136 rv = ne2000_detect(iot, ioh, asict, asich); 137 138 out: 139 bus_space_unmap(iot, ioh, NE2000_NPORTS); 140 return rv; 141 } 142 143 static void 144 ne_intio_attach(device_t parent, device_t self, void *aux) 145 { 146 struct ne_intio_softc *sc = device_private(self); 147 struct dp8390_softc *dsc = &sc->sc_dp8390; 148 struct intio_attach_args *ia = aux; 149 bus_space_tag_t iot = ia->ia_bst; 150 bus_space_handle_t ioh; 151 bus_space_tag_t asict; 152 bus_space_handle_t asich; 153 const char *typestr; 154 int netype; 155 156 dsc->sc_dev = self; 157 aprint_normal(": Nereid Ethernet\n"); 158 159 /* Map I/O space */ 160 if (bus_space_map(iot, ia->ia_addr, NE2000_NPORTS*2, 161 BUS_SPACE_MAP_SHIFTED_EVEN, &ioh)){ 162 aprint_error_dev(self, "can't map I/O space\n"); 163 return; 164 } 165 166 asict = iot; 167 if (bus_space_subregion(iot, ioh, NE2000_ASIC_OFFSET*2, 168 NE2000_ASIC_NPORTS*2, &asich)) { 169 aprint_error_dev(self, "can't subregion I/O space\n"); 170 return; 171 } 172 173 dsc->sc_regt = iot; 174 dsc->sc_regh = ioh; 175 176 sc->sc_asict = asict; 177 sc->sc_asich = asich; 178 179 /* 180 * detect it again, so we can print some information about 181 * the interface. 182 * XXX: Should I check NE1000 or NE2000 for Nereid? 183 */ 184 netype = ne2000_detect(iot, ioh, asict, asich); 185 switch (netype) { 186 case NE2000_TYPE_NE1000: 187 typestr = "NE1000"; 188 break; 189 190 case NE2000_TYPE_NE2000: 191 typestr = "NE2000"; 192 /* 193 * Check for a Realtek 8019. 194 */ 195 bus_space_write_1(iot, ioh, ED_P0_CR, 196 ED_CR_PAGE_0 | ED_CR_STP); 197 if (bus_space_read_1(iot, ioh, NERTL_RTL0_8019ID0) == 198 RTL0_8019ID0 && 199 bus_space_read_1(iot, ioh, NERTL_RTL0_8019ID1) == 200 RTL0_8019ID1) { 201 typestr = "NE2000 (RTL8019)"; 202 dsc->sc_mediachange = rtl80x9_mediachange; 203 dsc->sc_mediastatus = rtl80x9_mediastatus; 204 dsc->init_card = rtl80x9_init_card; 205 dsc->sc_media_init = rtl80x9_media_init; 206 } 207 break; 208 209 default: 210 aprint_error_dev(self, "where did the card go?!\n"); 211 return; 212 } 213 214 aprint_normal_dev(self, "%s Ethernet\n", typestr); 215 216 /* This interface is always enabled */ 217 dsc->sc_enabled = 1; 218 219 /* 220 * Do generic NE2000 attach. 221 * This will read the mac address from the EEPROM. 222 */ 223 ne2000_attach(sc, NULL); 224 225 /* Establish the interrupt handler */ 226 if (intio_intr_establish(ia->ia_intr, "ne", ne_intio_intr, dsc)) 227 aprint_error_dev(self, 228 "couldn't establish interrupt handler\n"); 229 } 230 231 static int 232 ne_intio_intr(void *arg) 233 { 234 int error; 235 int s; 236 237 s = splnet(); 238 error = dp8390_intr(arg); 239 splx(s); 240 return error; 241 } 242