Annotation of sys/arch/mac68k/dev/if_sn_obio.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_sn_obio.c,v 1.23 2006/03/23 04:17:23 brad Exp $ */
! 2: /* $NetBSD: if_sn_obio.c,v 1.9 1997/04/22 20:56:15 scottr Exp $ */
! 3:
! 4: /*
! 5: * Copyright (C) 1997 Allen Briggs
! 6: * All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. All advertising materials mentioning features or use of this software
! 17: * must display the following acknowledgement:
! 18: * This product includes software developed by Allen Briggs
! 19: * 4. The name of the author may not be used to endorse or promote products
! 20: * derived from this software without specific prior written permission.
! 21: *
! 22: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 23: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 24: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 25: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 26: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 27: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 28: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 29: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 30: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 31: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 32: */
! 33:
! 34: #include <sys/param.h>
! 35: #include <sys/device.h>
! 36: #include <sys/errno.h>
! 37: #include <sys/ioctl.h>
! 38: #include <sys/socket.h>
! 39: #include <sys/syslog.h>
! 40: #include <sys/systm.h>
! 41:
! 42: #include <uvm/uvm_extern.h>
! 43:
! 44: #include <net/if.h>
! 45: #include <netinet/in.h>
! 46: #include <netinet/if_ether.h>
! 47:
! 48: #include <machine/bus.h>
! 49: #include <machine/cpu.h>
! 50: #include <machine/viareg.h>
! 51:
! 52: #include <mac68k/dev/obiovar.h>
! 53: #include <mac68k/dev/if_snreg.h>
! 54: #include <mac68k/dev/if_snvar.h>
! 55:
! 56: #define SONIC_REG_BASE 0x50F0A000
! 57: #define SONIC_PROM_BASE 0x50F08000
! 58:
! 59: static int sn_obio_match(struct device *, void *, void *);
! 60: static void sn_obio_attach(struct device *, struct device *, void *);
! 61: static int sn_obio_getaddr(struct sn_softc *, u_int8_t *);
! 62: static int sn_obio_getaddr_kludge(struct sn_softc *, u_int8_t *);
! 63:
! 64: struct cfattach sn_obio_ca = {
! 65: sizeof(struct sn_softc), sn_obio_match, sn_obio_attach
! 66: };
! 67:
! 68: static int
! 69: sn_obio_match(struct device *parent, void *cf, void *aux)
! 70: {
! 71: struct obio_attach_args *oa = (struct obio_attach_args *)aux;
! 72: bus_space_handle_t bsh;
! 73: int found = 0;
! 74:
! 75: if (!mac68k_machine.sonic)
! 76: return 0;
! 77:
! 78: if (bus_space_map(oa->oa_tag,
! 79: SONIC_REG_BASE, SN_REGSIZE, 0, &bsh))
! 80: return 0;
! 81:
! 82: if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 4))
! 83: found = 1;
! 84:
! 85: bus_space_unmap(oa->oa_tag, bsh, SN_REGSIZE);
! 86:
! 87: return found;
! 88: }
! 89:
! 90: /*
! 91: * Install interface into kernel networking data structures
! 92: */
! 93: static void
! 94: sn_obio_attach(struct device *parent, struct device *self, void *aux)
! 95: {
! 96: struct obio_attach_args *oa = (struct obio_attach_args *)aux;
! 97: struct sn_softc *sc = (void *)self;
! 98: u_int8_t myaddr[ETHER_ADDR_LEN];
! 99: int i;
! 100:
! 101: sc->snr_dcr = DCR_WAIT0 | DCR_DMABLOCK | DCR_RFT16 | DCR_TFT16;
! 102: sc->snr_dcr2 = 0;
! 103:
! 104: sc->slotno = 9;
! 105:
! 106: switch (current_mac_model->machineid) {
! 107: case MACH_MACC610:
! 108: case MACH_MACC650:
! 109: case MACH_MACQ610:
! 110: case MACH_MACQ650:
! 111: case MACH_MACQ700:
! 112: case MACH_MACQ800:
! 113: case MACH_MACQ900:
! 114: case MACH_MACQ950:
! 115: sc->snr_dcr |= DCR_EXBUS;
! 116: sc->bitmode = 1;
! 117: break;
! 118:
! 119: case MACH_MACLC575:
! 120: case MACH_MACP580:
! 121: case MACH_MACQ630:
! 122: break;
! 123:
! 124: case MACH_MACPB500:
! 125: sc->snr_dcr |= DCR_SYNC | DCR_LBR;
! 126: sc->bitmode = 0; /* 16 bit interface */
! 127: break;
! 128:
! 129: default:
! 130: printf(": unsupported machine type\n");
! 131: return;
! 132: }
! 133:
! 134: sc->sc_regt = oa->oa_tag;
! 135:
! 136: if (bus_space_map(sc->sc_regt,
! 137: SONIC_REG_BASE, SN_REGSIZE, 0, &sc->sc_regh)) {
! 138: printf(": failed to map space for SONIC regs.\n");
! 139: return;
! 140: }
! 141:
! 142: /* regs are addressed as words, big-endian. */
! 143: for (i = 0; i < SN_NREGS; i++) {
! 144: sc->sc_reg_map[i] = (bus_size_t)((i * 4) + 2);
! 145: }
! 146:
! 147: /*
! 148: * Kind of kludge this. Comm-slot cards do not really
! 149: * have a visible type, as far as I can tell at this time,
! 150: * so assume that MacOS had it properly configured and use
! 151: * that configuration.
! 152: */
! 153: switch (current_mac_model->machineid) {
! 154: case MACH_MACLC575:
! 155: case MACH_MACP580:
! 156: case MACH_MACQ630:
! 157: NIC_PUT(sc, SNR_CR, CR_RST); wbflush();
! 158: i = NIC_GET(sc, SNR_DCR);
! 159: sc->snr_dcr |= (i & 0xfff0);
! 160: sc->bitmode = (i & DCR_DW) ? 1 : 0;
! 161: break;
! 162: default:
! 163: break;
! 164: }
! 165:
! 166: if (sn_obio_getaddr(sc, myaddr) &&
! 167: sn_obio_getaddr_kludge(sc, myaddr)) { /* XXX kludge for PB */
! 168: printf(": failed to get MAC address.\n");
! 169: bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE);
! 170: return;
! 171: }
! 172:
! 173: printf(": integrated ethernet adapter, ");
! 174:
! 175: /* snsetup returns 1 if something fails */
! 176: if (snsetup(sc, myaddr)) {
! 177: bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE);
! 178: return;
! 179: }
! 180:
! 181: if (mac68k_machine.aux_interrupts)
! 182: intr_establish(snintr, sc, 3, sc->sc_dev.dv_xname);
! 183: else
! 184: add_nubus_intr(sc->slotno, snintr, sc, sc->sc_dev.dv_xname);
! 185: }
! 186:
! 187: static int
! 188: sn_obio_getaddr(struct sn_softc *sc, u_int8_t *lladdr)
! 189: {
! 190: bus_space_handle_t bsh;
! 191:
! 192: if (bus_space_map(sc->sc_regt, SONIC_PROM_BASE, PAGE_SIZE, 0, &bsh)) {
! 193: printf(": failed to map space to read SONIC address.\n%s",
! 194: sc->sc_dev.dv_xname);
! 195: return (-1);
! 196: }
! 197:
! 198: if (!mac68k_bus_space_probe(sc->sc_regt, bsh, 0, 1)) {
! 199: bus_space_unmap(sc->sc_regt, bsh, PAGE_SIZE);
! 200: return (-1);
! 201: }
! 202:
! 203: sn_get_enaddr(sc->sc_regt, bsh, 0, lladdr);
! 204:
! 205: bus_space_unmap(sc->sc_regt, bsh, PAGE_SIZE);
! 206:
! 207: return (0);
! 208: }
! 209:
! 210: /*
! 211: * Assume that the SONIC was initialized in MacOS. This should go away
! 212: * when we can properly get the MAC address on the PBs.
! 213: */
! 214: static int
! 215: sn_obio_getaddr_kludge(struct sn_softc *sc, u_int8_t *lladdr)
! 216: {
! 217: int i, ors = 0;
! 218:
! 219: /* Shut down NIC */
! 220: NIC_PUT(sc, SNR_CR, CR_RST);
! 221: wbflush();
! 222:
! 223: NIC_PUT(sc, SNR_CEP, 15); /* For some reason, Apple fills top first. */
! 224: wbflush();
! 225: i = NIC_GET(sc, SNR_CAP2);
! 226: wbflush();
! 227:
! 228: ors |= i;
! 229: lladdr[5] = i >> 8;
! 230: lladdr[4] = i;
! 231:
! 232: i = NIC_GET(sc, SNR_CAP1);
! 233: wbflush();
! 234:
! 235: ors |= i;
! 236: lladdr[3] = i >> 8;
! 237: lladdr[2] = i;
! 238:
! 239: i = NIC_GET(sc, SNR_CAP0);
! 240: wbflush();
! 241:
! 242: ors |= i;
! 243: lladdr[1] = i >> 8;
! 244: lladdr[0] = i;
! 245:
! 246: NIC_PUT(sc, SNR_CR, 0);
! 247: wbflush();
! 248:
! 249: if (ors == 0)
! 250: return (-1);
! 251:
! 252: return (0);
! 253: }
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