if_sn_obio.c revision 1.15
1 /* $NetBSD: if_sn_obio.c,v 1.15 1998/05/02 16:45:31 scottr 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 <sys/param.h> 34 #include <sys/device.h> 35 #include <sys/errno.h> 36 #include <sys/ioctl.h> 37 #include <sys/socket.h> 38 #include <sys/syslog.h> 39 #include <sys/systm.h> 40 41 #include <net/if.h> 42 #include <net/if_ether.h> 43 44 #if 0 /* XXX this shouldn't be necessary... else reinsert */ 45 #ifdef INET 46 #include <netinet/in.h> 47 #include <netinet/if_ether.h> 48 #endif 49 #endif 50 51 #include <machine/bus.h> 52 #include <machine/cpu.h> 53 #include <machine/viareg.h> 54 55 #include <mac68k/obio/obiovar.h> 56 #include <mac68k/dev/if_snreg.h> 57 #include <mac68k/dev/if_snvar.h> 58 59 #define SONIC_REG_BASE 0x50F0A000 60 #define SONIC_PROM_BASE 0x50F08000 61 62 static int sn_obio_match __P((struct device *, struct cfdata *, void *)); 63 static void sn_obio_attach __P((struct device *, struct device *, void *)); 64 static int sn_obio_getaddr __P((struct sn_softc *, u_int8_t *)); 65 static int sn_obio_getaddr_kludge __P((struct sn_softc *, u_int8_t *)); 66 67 struct cfattach sn_obio_ca = { 68 sizeof(struct sn_softc), sn_obio_match, sn_obio_attach 69 }; 70 71 static int 72 sn_obio_match(parent, cf, aux) 73 struct device *parent; 74 struct cfdata *cf; 75 void *aux; 76 { 77 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 78 bus_space_handle_t bsh; 79 int found = 0; 80 81 if (!mac68k_machine.sonic) 82 return 0; 83 84 if (bus_space_map(oa->oa_tag, 85 SONIC_REG_BASE, SN_REGSIZE, 0, &bsh)) 86 return 0; 87 88 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 4)) 89 found = 1; 90 91 bus_space_unmap(oa->oa_tag, bsh, SN_REGSIZE); 92 93 return found; 94 } 95 96 /* 97 * Install interface into kernel networking data structures 98 */ 99 static void 100 sn_obio_attach(parent, self, aux) 101 struct device *parent, *self; 102 void *aux; 103 { 104 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 105 struct sn_softc *sc = (void *)self; 106 u_int8_t myaddr[ETHER_ADDR_LEN]; 107 int i; 108 109 sc->snr_dcr = DCR_WAIT0 | DCR_DMABLOCK | DCR_RFT16 | DCR_TFT16; 110 sc->snr_dcr2 = 0; 111 112 sc->slotno = 9; 113 114 switch (current_mac_model->machineid) { 115 case MACH_MACC610: 116 case MACH_MACC650: 117 case MACH_MACQ610: 118 case MACH_MACQ650: 119 case MACH_MACQ700: 120 case MACH_MACQ800: 121 case MACH_MACQ900: 122 case MACH_MACQ950: 123 sc->snr_dcr |= DCR_EXBUS; 124 sc->bitmode = 1; 125 break; 126 127 case MACH_MACLC575: 128 case MACH_MACQ630: 129 break; 130 131 case MACH_MACPB500: 132 sc->snr_dcr |= DCR_SYNC | DCR_LBR; 133 sc->bitmode = 0; /* 16 bit interface */ 134 break; 135 136 default: 137 printf(": unsupported machine type\n"); 138 return; 139 } 140 141 sc->sc_regt = oa->oa_tag; 142 143 if (bus_space_map(sc->sc_regt, 144 SONIC_REG_BASE, SN_REGSIZE, 0, &sc->sc_regh)) { 145 printf(": failed to map space for SONIC regs.\n"); 146 return; 147 } 148 149 /* regs are addressed as words, big-endian. */ 150 for (i = 0; i < SN_NREGS; i++) { 151 sc->sc_reg_map[i] = (bus_size_t)((i * 4) + 2); 152 } 153 154 /* 155 * Kind of kludge this. Comm-slot cards do not really 156 * have a visible type, as far as I can tell at this time, 157 * so assume that MacOS had it properly configured and use 158 * that configuration. 159 */ 160 switch (current_mac_model->machineid) { 161 case MACH_MACLC575: 162 case MACH_MACQ630: 163 NIC_PUT(sc, SNR_CR, CR_RST); wbflush(); 164 i = NIC_GET(sc, SNR_DCR); 165 sc->snr_dcr |= (i & 0xfff0); 166 sc->bitmode = (i & DCR_DW) ? 1 : 0; 167 break; 168 default: 169 break; 170 } 171 172 if (sn_obio_getaddr(sc, myaddr) && 173 sn_obio_getaddr_kludge(sc, myaddr)) { /* XXX kludge for PB */ 174 printf(": failed to get MAC address.\n"); 175 bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE); 176 return; 177 } 178 179 /* snsetup returns 1 if something fails */ 180 if (snsetup(sc, myaddr)) { 181 bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE); 182 return; 183 } 184 185 add_nubus_intr(sc->slotno, snintr, (void *)sc); 186 } 187 188 static int 189 sn_obio_getaddr(sc, lladdr) 190 struct sn_softc *sc; 191 u_int8_t *lladdr; 192 { 193 bus_space_handle_t bsh; 194 195 if (bus_space_map(sc->sc_regt, SONIC_PROM_BASE, NBPG, 0, &bsh)) { 196 printf(": failed to map space to read SONIC address.\n%s", 197 sc->sc_dev.dv_xname); 198 return (-1); 199 } 200 201 if (!mac68k_bus_space_probe(sc->sc_regt, bsh, 0, 1)) { 202 bus_space_unmap(sc->sc_regt, bsh, NBPG); 203 return (-1); 204 } 205 206 sn_get_enaddr(sc->sc_regt, bsh, 0, lladdr); 207 208 bus_space_unmap(sc->sc_regt, bsh, NBPG); 209 210 return 0; 211 } 212 213 /* 214 * Assume that the SONIC was initialized in MacOS. This should go away 215 * when we can properly get the MAC address on the PBs. 216 */ 217 static int 218 sn_obio_getaddr_kludge(sc, lladdr) 219 struct sn_softc *sc; 220 u_int8_t *lladdr; 221 { 222 int i, ors = 0; 223 224 /* Shut down NIC */ 225 NIC_PUT(sc, SNR_CR, CR_RST); 226 wbflush(); 227 228 NIC_PUT(sc, SNR_CEP, 15); /* For some reason, Apple fills top first. */ 229 wbflush(); 230 i = NIC_GET(sc, SNR_CAP2); 231 wbflush(); 232 233 ors |= i; 234 lladdr[5] = i >> 8; 235 lladdr[4] = i; 236 237 i = NIC_GET(sc, SNR_CAP1); 238 wbflush(); 239 240 ors |= i; 241 lladdr[3] = i >> 8; 242 lladdr[2] = i; 243 244 i = NIC_GET(sc, SNR_CAP0); 245 wbflush(); 246 247 ors |= i; 248 lladdr[1] = i >> 8; 249 lladdr[0] = i; 250 251 NIC_PUT(sc, SNR_CR, 0); 252 wbflush(); 253 254 if (ors == 0) 255 return -1; 256 257 return 0; 258 } 259
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