if_sn_obio.c revision 1.18
1 /* $NetBSD: if_sn_obio.c,v 1.18 1999/06/28 01:56:58 briggs Exp $ */ 2 3 /* 4 * Copyright (C) 1997 Allen Briggs 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Allen Briggs 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include "opt_inet.h" 34 35 #include <sys/param.h> 36 #include <sys/device.h> 37 #include <sys/errno.h> 38 #include <sys/ioctl.h> 39 #include <sys/socket.h> 40 #include <sys/syslog.h> 41 #include <sys/systm.h> 42 43 #include <net/if.h> 44 #include <net/if_ether.h> 45 46 #if 0 /* XXX this shouldn't be necessary... else reinsert */ 47 #ifdef INET 48 #include <netinet/in.h> 49 #include <netinet/if_ether.h> 50 #endif 51 #endif 52 53 #include <machine/bus.h> 54 #include <machine/cpu.h> 55 #include <machine/viareg.h> 56 57 #include <mac68k/obio/obiovar.h> 58 #include <mac68k/dev/if_snreg.h> 59 #include <mac68k/dev/if_snvar.h> 60 61 #define SONIC_REG_BASE 0x50F0A000 62 #define SONIC_PROM_BASE 0x50F08000 63 64 static int sn_obio_match __P((struct device *, struct cfdata *, void *)); 65 static void sn_obio_attach __P((struct device *, struct device *, void *)); 66 static int sn_obio_getaddr __P((struct sn_softc *, u_int8_t *)); 67 static int sn_obio_getaddr_kludge __P((struct sn_softc *, u_int8_t *)); 68 69 struct cfattach sn_obio_ca = { 70 sizeof(struct sn_softc), sn_obio_match, sn_obio_attach 71 }; 72 73 static int 74 sn_obio_match(parent, cf, aux) 75 struct device *parent; 76 struct cfdata *cf; 77 void *aux; 78 { 79 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 80 bus_space_handle_t bsh; 81 int found = 0; 82 83 if (!mac68k_machine.sonic) 84 return 0; 85 86 if (bus_space_map(oa->oa_tag, 87 SONIC_REG_BASE, SN_REGSIZE, 0, &bsh)) 88 return 0; 89 90 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 4)) 91 found = 1; 92 93 bus_space_unmap(oa->oa_tag, bsh, SN_REGSIZE); 94 95 return found; 96 } 97 98 /* 99 * Install interface into kernel networking data structures 100 */ 101 static void 102 sn_obio_attach(parent, self, aux) 103 struct device *parent, *self; 104 void *aux; 105 { 106 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 107 struct sn_softc *sc = (void *)self; 108 u_int8_t myaddr[ETHER_ADDR_LEN]; 109 int i; 110 111 sc->snr_dcr = DCR_WAIT0 | DCR_DMABLOCK | DCR_RFT16 | DCR_TFT16; 112 sc->snr_dcr2 = 0; 113 114 sc->slotno = 9; 115 116 switch (current_mac_model->machineid) { 117 case MACH_MACC610: 118 case MACH_MACC650: 119 case MACH_MACQ610: 120 case MACH_MACQ650: 121 case MACH_MACQ700: 122 case MACH_MACQ800: 123 case MACH_MACQ900: 124 case MACH_MACQ950: 125 sc->snr_dcr |= DCR_EXBUS; 126 sc->bitmode = 1; 127 break; 128 129 case MACH_MACLC575: 130 case MACH_MACP580: 131 case MACH_MACQ630: 132 break; 133 134 case MACH_MACPB500: 135 sc->snr_dcr |= DCR_SYNC | DCR_LBR; 136 sc->bitmode = 0; /* 16 bit interface */ 137 break; 138 139 default: 140 printf(": unsupported machine type\n"); 141 return; 142 } 143 144 sc->sc_regt = oa->oa_tag; 145 146 if (bus_space_map(sc->sc_regt, 147 SONIC_REG_BASE, SN_REGSIZE, 0, &sc->sc_regh)) { 148 printf(": failed to map space for SONIC regs.\n"); 149 return; 150 } 151 152 /* regs are addressed as words, big-endian. */ 153 for (i = 0; i < SN_NREGS; i++) { 154 sc->sc_reg_map[i] = (bus_size_t)((i * 4) + 2); 155 } 156 157 /* 158 * Kind of kludge this. Comm-slot cards do not really 159 * have a visible type, as far as I can tell at this time, 160 * so assume that MacOS had it properly configured and use 161 * that configuration. 162 */ 163 switch (current_mac_model->machineid) { 164 case MACH_MACLC575: 165 case MACH_MACP580: 166 case MACH_MACQ630: 167 NIC_PUT(sc, SNR_CR, CR_RST); wbflush(); 168 i = NIC_GET(sc, SNR_DCR); 169 sc->snr_dcr |= (i & 0xfff0); 170 sc->bitmode = (i & DCR_DW) ? 1 : 0; 171 break; 172 default: 173 break; 174 } 175 176 if (sn_obio_getaddr(sc, myaddr) && 177 sn_obio_getaddr_kludge(sc, myaddr)) { /* XXX kludge for PB */ 178 printf(": failed to get MAC address.\n"); 179 bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE); 180 return; 181 } 182 183 /* snsetup returns 1 if something fails */ 184 if (snsetup(sc, myaddr)) { 185 bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE); 186 return; 187 } 188 189 if (mac68k_machine.aux_interrupts) { 190 intr_establish((int (*)(void *))snintr, (void *)sc, 3); 191 } else { 192 add_nubus_intr(sc->slotno, snintr, (void *)sc); 193 } 194 } 195 196 static int 197 sn_obio_getaddr(sc, lladdr) 198 struct sn_softc *sc; 199 u_int8_t *lladdr; 200 { 201 bus_space_handle_t bsh; 202 203 if (bus_space_map(sc->sc_regt, SONIC_PROM_BASE, NBPG, 0, &bsh)) { 204 printf(": failed to map space to read SONIC address.\n%s", 205 sc->sc_dev.dv_xname); 206 return (-1); 207 } 208 209 if (!mac68k_bus_space_probe(sc->sc_regt, bsh, 0, 1)) { 210 bus_space_unmap(sc->sc_regt, bsh, NBPG); 211 return (-1); 212 } 213 214 sn_get_enaddr(sc->sc_regt, bsh, 0, lladdr); 215 216 bus_space_unmap(sc->sc_regt, bsh, NBPG); 217 218 return 0; 219 } 220 221 /* 222 * Assume that the SONIC was initialized in MacOS. This should go away 223 * when we can properly get the MAC address on the PBs. 224 */ 225 static int 226 sn_obio_getaddr_kludge(sc, lladdr) 227 struct sn_softc *sc; 228 u_int8_t *lladdr; 229 { 230 int i, ors = 0; 231 232 /* Shut down NIC */ 233 NIC_PUT(sc, SNR_CR, CR_RST); 234 wbflush(); 235 236 NIC_PUT(sc, SNR_CEP, 15); /* For some reason, Apple fills top first. */ 237 wbflush(); 238 i = NIC_GET(sc, SNR_CAP2); 239 wbflush(); 240 241 ors |= i; 242 lladdr[5] = i >> 8; 243 lladdr[4] = i; 244 245 i = NIC_GET(sc, SNR_CAP1); 246 wbflush(); 247 248 ors |= i; 249 lladdr[3] = i >> 8; 250 lladdr[2] = i; 251 252 i = NIC_GET(sc, SNR_CAP0); 253 wbflush(); 254 255 ors |= i; 256 lladdr[1] = i >> 8; 257 lladdr[0] = i; 258 259 NIC_PUT(sc, SNR_CR, 0); 260 wbflush(); 261 262 if (ors == 0) 263 return -1; 264 265 return 0; 266 } 267
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