/* $OpenBSD: if_le.c,v 1.14 2002/03/14 01:26:30 millert Exp $ */ /* $NetBSD: if_le.c,v 1.43 1997/05/05 21:05:32 thorpej Exp $ */ /*- * Copyright (c) 1995 Charles M. Hannum. All rights reserved. * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Ralph Campbell and Rick Macklem. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)if_le.c 8.2 (Berkeley) 11/16/93 */ #include "bpfilter.h" #include #include #include #include #include #include #include #ifdef INET #include #include #endif #include #include #include #include #include #include #include #include #include #include #include #ifdef USELEDS #include #endif int lematch(struct device *, void *, void *); void leattach(struct device *, struct device *, void *); struct cfattach le_ca = { sizeof(struct le_softc), lematch, leattach }; int leintr(void *); /* offsets for: ID, REGS, MEM, NVRAM */ int lestd[] = { 0, 0x4000, 0x8000, 0xC008 }; hide void lewrcsr(struct am7990_softc *, u_int16_t, u_int16_t); hide u_int16_t lerdcsr(struct am7990_softc *, u_int16_t); hide void lewrcsr(sc, port, val) struct am7990_softc *sc; u_int16_t port, val; { struct lereg0 *ler0 = ((struct le_softc *)sc)->sc_r0; struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; do { ler1->ler1_rap = port; } while ((ler0->ler0_status & LE_ACK) == 0); do { ler1->ler1_rdp = val; } while ((ler0->ler0_status & LE_ACK) == 0); } hide u_int16_t lerdcsr(sc, port) struct am7990_softc *sc; u_int16_t port; { struct lereg0 *ler0 = ((struct le_softc *)sc)->sc_r0; struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; u_int16_t val; do { ler1->ler1_rap = port; } while ((ler0->ler0_status & LE_ACK) == 0); do { val = ler1->ler1_rdp; } while ((ler0->ler0_status & LE_ACK) == 0); return (val); } int lematch(parent, match, aux) struct device *parent; void *match, *aux; { struct dio_attach_args *da = aux; if ((da->da_id == DIO_DEVICE_ID_LAN) || (da->da_id == DIO_DEVICE_ID_LANREM)) return (1); return (0); } /* * Interface exists: make available by filling in network interface * record. System will initialize the interface when it is ready * to accept packets. */ void leattach(parent, self, aux) struct device *parent, *self; void *aux; { struct lereg0 *ler0; struct dio_attach_args *da = aux; struct le_softc *lesc = (struct le_softc *)self; caddr_t addr; struct am7990_softc *sc = &lesc->sc_am7990; char *cp; int i, ipl; addr = iomap(dio_scodetopa(da->da_scode), da->da_size); if (addr == 0) { printf("\n%s: can't map LANCE registers\n", sc->sc_dev.dv_xname); return; } ler0 = lesc->sc_r0 = (struct lereg0 *)(lestd[0] + (int)addr); ler0->ler0_id = 0xFF; DELAY(100); ipl = DIO_IPL(addr); printf(" ipl %d", ipl); lesc->sc_r1 = (struct lereg1 *)(lestd[1] + (int)addr); sc->sc_mem = (void *)(lestd[2] + (int)addr); sc->sc_conf3 = LE_C3_BSWP; sc->sc_addr = 0; sc->sc_memsize = 16384; /* * Read the ethernet address off the board, one nibble at a time. */ cp = (char *)(lestd[3] + (int)addr); for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++) { sc->sc_arpcom.ac_enaddr[i] = (*++cp & 0xF) << 4; cp++; sc->sc_arpcom.ac_enaddr[i] |= *++cp & 0xF; cp++; } sc->sc_copytodesc = am7990_copytobuf_contig; sc->sc_copyfromdesc = am7990_copyfrombuf_contig; sc->sc_copytobuf = am7990_copytobuf_contig; sc->sc_copyfrombuf = am7990_copyfrombuf_contig; sc->sc_zerobuf = am7990_zerobuf_contig; sc->sc_rdcsr = lerdcsr; sc->sc_wrcsr = lewrcsr; sc->sc_hwreset = NULL; sc->sc_hwinit = NULL; am7990_config(sc); /* Establish the interrupt handler. */ (void) dio_intr_establish(leintr, sc, ipl, IPL_NET); ler0->ler0_status = LE_IE; } int leintr(arg) void *arg; { struct am7990_softc *sc = arg; #ifdef USELEDS u_int16_t isr; isr = lerdcsr(sc, LE_CSR0); if ((isr & LE_C0_INTR) == 0) return (0); if (isr & LE_C0_RINT) ledcontrol(0, 0, LED_LANRCV); if (isr & LE_C0_TINT) ledcontrol(0, 0, LED_LANXMT); #endif /* USELEDS */ return (am7990_intr(sc)); }