Annotation of sys/arch/hp300/dev/if_le.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_le.c,v 1.17 2005/01/15 21:13:08 miod Exp $ */
! 2: /* $NetBSD: if_le.c,v 1.43 1997/05/05 21:05:32 thorpej Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1995 Charles M. Hannum. All rights reserved.
! 6: * Copyright (c) 1992, 1993
! 7: * The Regents of the University of California. All rights reserved.
! 8: *
! 9: * This code is derived from software contributed to Berkeley by
! 10: * Ralph Campbell and Rick Macklem.
! 11: *
! 12: * Redistribution and use in source and binary forms, with or without
! 13: * modification, are permitted provided that the following conditions
! 14: * are met:
! 15: * 1. Redistributions of source code must retain the above copyright
! 16: * notice, this list of conditions and the following disclaimer.
! 17: * 2. Redistributions in binary form must reproduce the above copyright
! 18: * notice, this list of conditions and the following disclaimer in the
! 19: * documentation and/or other materials provided with the distribution.
! 20: * 3. Neither the name of the University nor the names of its contributors
! 21: * may be used to endorse or promote products derived from this software
! 22: * without specific prior written permission.
! 23: *
! 24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 34: * SUCH DAMAGE.
! 35: *
! 36: * @(#)if_le.c 8.2 (Berkeley) 11/16/93
! 37: */
! 38:
! 39: #include "bpfilter.h"
! 40:
! 41: #include <sys/param.h>
! 42: #include <sys/systm.h>
! 43: #include <sys/mbuf.h>
! 44: #include <sys/syslog.h>
! 45: #include <sys/socket.h>
! 46: #include <sys/device.h>
! 47:
! 48: #include <net/if.h>
! 49:
! 50: #ifdef INET
! 51: #include <netinet/in.h>
! 52: #include <netinet/if_ether.h>
! 53: #endif
! 54:
! 55: #include <net/if_media.h>
! 56:
! 57: #include <machine/autoconf.h>
! 58: #include <machine/cpu.h>
! 59: #include <machine/intr.h>
! 60:
! 61: #include <dev/ic/am7990reg.h>
! 62: #include <dev/ic/am7990var.h>
! 63:
! 64: #include <hp300/dev/dioreg.h>
! 65: #include <hp300/dev/diovar.h>
! 66: #include <hp300/dev/diodevs.h>
! 67: #include <hp300/dev/if_lereg.h>
! 68: #include <hp300/dev/if_levar.h>
! 69:
! 70: #ifdef USELEDS
! 71: #include <hp300/hp300/leds.h>
! 72: #endif
! 73:
! 74: int lematch(struct device *, void *, void *);
! 75: void leattach(struct device *, struct device *, void *);
! 76:
! 77: struct cfattach le_ca = {
! 78: sizeof(struct le_softc), lematch, leattach
! 79: };
! 80:
! 81: int leintr(void *);
! 82:
! 83: /* offsets for: ID, REGS, MEM, NVRAM */
! 84: int lestd[] = { 0, 0x4000, 0x8000, 0xC008 };
! 85:
! 86: hide void lewrcsr(struct am7990_softc *, u_int16_t, u_int16_t);
! 87: hide u_int16_t lerdcsr(struct am7990_softc *, u_int16_t);
! 88:
! 89: hide void
! 90: lewrcsr(sc, port, val)
! 91: struct am7990_softc *sc;
! 92: u_int16_t port, val;
! 93: {
! 94: struct lereg0 *ler0 = ((struct le_softc *)sc)->sc_r0;
! 95: struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
! 96:
! 97: do {
! 98: ler1->ler1_rap = port;
! 99: } while ((ler0->ler0_status & LE_ACK) == 0);
! 100: do {
! 101: ler1->ler1_rdp = val;
! 102: } while ((ler0->ler0_status & LE_ACK) == 0);
! 103: }
! 104:
! 105: hide u_int16_t
! 106: lerdcsr(sc, port)
! 107: struct am7990_softc *sc;
! 108: u_int16_t port;
! 109: {
! 110: struct lereg0 *ler0 = ((struct le_softc *)sc)->sc_r0;
! 111: struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
! 112: u_int16_t val;
! 113:
! 114: do {
! 115: ler1->ler1_rap = port;
! 116: } while ((ler0->ler0_status & LE_ACK) == 0);
! 117: do {
! 118: val = ler1->ler1_rdp;
! 119: } while ((ler0->ler0_status & LE_ACK) == 0);
! 120: return (val);
! 121: }
! 122:
! 123: int
! 124: lematch(parent, match, aux)
! 125: struct device *parent;
! 126: void *match, *aux;
! 127: {
! 128: struct dio_attach_args *da = aux;
! 129:
! 130: if ((da->da_id == DIO_DEVICE_ID_LAN) ||
! 131: (da->da_id == DIO_DEVICE_ID_LANREM))
! 132: return (1);
! 133: return (0);
! 134: }
! 135:
! 136: /*
! 137: * Interface exists: make available by filling in network interface
! 138: * record. System will initialize the interface when it is ready
! 139: * to accept packets.
! 140: */
! 141: void
! 142: leattach(parent, self, aux)
! 143: struct device *parent, *self;
! 144: void *aux;
! 145: {
! 146: struct lereg0 *ler0;
! 147: struct dio_attach_args *da = aux;
! 148: struct le_softc *lesc = (struct le_softc *)self;
! 149: caddr_t addr;
! 150: struct am7990_softc *sc = &lesc->sc_am7990;
! 151: char *cp;
! 152: int i, ipl;
! 153:
! 154: addr = iomap(dio_scodetopa(da->da_scode), da->da_size);
! 155: if (addr == 0) {
! 156: printf("\n%s: can't map LANCE registers\n",
! 157: sc->sc_dev.dv_xname);
! 158: return;
! 159: }
! 160:
! 161: ler0 = lesc->sc_r0 = (struct lereg0 *)(lestd[0] + (int)addr);
! 162: ler0->ler0_id = 0xFF;
! 163: DELAY(100);
! 164:
! 165: ipl = DIO_IPL(addr);
! 166: printf(" ipl %d", ipl);
! 167:
! 168: lesc->sc_r1 = (struct lereg1 *)(lestd[1] + (int)addr);
! 169: sc->sc_mem = (void *)(lestd[2] + (int)addr);
! 170: sc->sc_conf3 = LE_C3_BSWP;
! 171: sc->sc_addr = 0;
! 172: sc->sc_memsize = 16384;
! 173:
! 174: /*
! 175: * Read the ethernet address off the board, one nibble at a time.
! 176: */
! 177: cp = (char *)(lestd[3] + (int)addr);
! 178: for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++) {
! 179: sc->sc_arpcom.ac_enaddr[i] = (*++cp & 0xF) << 4;
! 180: cp++;
! 181: sc->sc_arpcom.ac_enaddr[i] |= *++cp & 0xF;
! 182: cp++;
! 183: }
! 184:
! 185: sc->sc_copytodesc = am7990_copytobuf_contig;
! 186: sc->sc_copyfromdesc = am7990_copyfrombuf_contig;
! 187: sc->sc_copytobuf = am7990_copytobuf_contig;
! 188: sc->sc_copyfrombuf = am7990_copyfrombuf_contig;
! 189: sc->sc_zerobuf = am7990_zerobuf_contig;
! 190:
! 191: sc->sc_rdcsr = lerdcsr;
! 192: sc->sc_wrcsr = lewrcsr;
! 193: sc->sc_hwreset = NULL;
! 194: sc->sc_hwinit = NULL;
! 195:
! 196: am7990_config(sc);
! 197:
! 198: /* Establish the interrupt handler. */
! 199: lesc->sc_isr.isr_func = leintr;
! 200: lesc->sc_isr.isr_arg = lesc;
! 201: lesc->sc_isr.isr_ipl = ipl;
! 202: lesc->sc_isr.isr_priority = IPL_NET;
! 203: dio_intr_establish(&lesc->sc_isr, self->dv_xname);
! 204: ler0->ler0_status = LE_IE;
! 205: }
! 206:
! 207: int
! 208: leintr(arg)
! 209: void *arg;
! 210: {
! 211: struct le_softc *lesc = (struct le_softc *)arg;
! 212: struct am7990_softc *sc = &lesc->sc_am7990;
! 213: #ifdef USELEDS
! 214: u_int16_t isr;
! 215:
! 216: isr = lerdcsr(sc, LE_CSR0);
! 217:
! 218: if ((isr & LE_C0_INTR) == 0)
! 219: return (0);
! 220:
! 221: if (isr & LE_C0_RINT)
! 222: ledcontrol(0, 0, LED_LANRCV);
! 223:
! 224: if (isr & LE_C0_TINT)
! 225: ledcontrol(0, 0, LED_LANXMT);
! 226: #endif /* USELEDS */
! 227:
! 228: return am7990_intr(sc);
! 229: }
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