/* $NetBSD: if_le.c,v 1.37 2010/12/14 23:38:30 matt Exp $ */ /*- * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace * Simulation Facility, NASA Ames Research Center. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ /*- * 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. 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 __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.37 2010/12/14 23:38:30 matt Exp $"); #include "opt_inet.h" #include #include #include #include #include #include #include #include #include #ifdef INET #include #include #endif #include #include #include #include #include #include #include #include "ioconf.h" #define LE_VEC 0xd4 /* Interrupt vector on 3300/3400 */ #define LE_CSR 0x20084400 #define LE_ROM 0x20084200 #define LE_RAM 0x20120000 struct le_softc { struct am7990_softc sc_am7990; /* Must be first */ struct evcnt sc_intrcnt; volatile uint16_t *sc_rap; volatile uint16_t *sc_rdp; }; static int le_mainbus_match(device_t, cfdata_t, void *); static void le_mainbus_attach(device_t, device_t, void *); static void lewrcsr(struct lance_softc *, uint16_t, uint16_t); static uint16_t lerdcsr(struct lance_softc *, uint16_t); static void lance_copytobuf_gap2(struct lance_softc *, void *, int, int); static void lance_copyfrombuf_gap2(struct lance_softc *, void *, int, int); static void lance_zerobuf_gap2(struct lance_softc *, int, int); CFATTACH_DECL_NEW(le_mainbus, sizeof(struct le_softc), le_mainbus_match, le_mainbus_attach, NULL, NULL); void lewrcsr(struct lance_softc *ls, uint16_t port, uint16_t val) { struct le_softc * const sc = (void *)ls; *sc->sc_rap = port; *sc->sc_rdp = val; } uint16_t lerdcsr(struct lance_softc *ls, uint16_t port) { struct le_softc * const sc = (void *)ls; *sc->sc_rap = port; return *sc->sc_rdp; } int le_mainbus_match(device_t parent, cfdata_t cf, void *aux) { struct mainbus_attach_args * const ma = aux; int found; vaddr_t va; if (strcmp("lance", ma->ma_type)) return 0; va = vax_map_physmem(LE_CSR, 1); found = (badaddr((void *)va, 2) == 0); vax_unmap_physmem(va, 1); return found; } void le_mainbus_attach(device_t parent, device_t self, void *aux) { struct le_softc * const sc = device_private(self); int *lance_addr; int i, vec, br; sc->sc_am7990.lsc.sc_dev = self; sc->sc_rdp = (uint16_t *)vax_map_physmem(LE_CSR, 1); sc->sc_rap = sc->sc_rdp + 2; /* * Set interrupt vector, by forcing an interrupt. */ scb_vecref(0, 0); /* Clear vector ref */ *sc->sc_rap = LE_CSR0; *sc->sc_rdp = LE_C0_STOP; DELAY(100); *sc->sc_rdp = LE_C0_INIT|LE_C0_INEA; DELAY(100000); i = scb_vecref(&vec, &br); if (i == 0 || vec == 0) return; scb_vecalloc(vec, (void (*)(void *))am7990_intr, sc, SCB_ISTACK, &sc->sc_intrcnt); evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, device_xname(self), "intr"); aprint_normal(": vec %o ipl %x\n%s", vec, br, device_xname(self)); /* * MD functions. */ sc->sc_am7990.lsc.sc_rdcsr = lerdcsr; sc->sc_am7990.lsc.sc_wrcsr = lewrcsr; sc->sc_am7990.lsc.sc_nocarrier = NULL; sc->sc_am7990.lsc.sc_mem = (void *)uvm_km_alloc(kernel_map, (128 * 1024), 0, UVM_KMF_VAONLY); if (sc->sc_am7990.lsc.sc_mem == 0) return; ioaccess((vaddr_t)sc->sc_am7990.lsc.sc_mem, LE_RAM, (128 * 1024) >> VAX_PGSHIFT); sc->sc_am7990.lsc.sc_addr = 0; sc->sc_am7990.lsc.sc_memsize = (64 * 1024); sc->sc_am7990.lsc.sc_copytodesc = lance_copytobuf_gap2; sc->sc_am7990.lsc.sc_copyfromdesc = lance_copyfrombuf_gap2; sc->sc_am7990.lsc.sc_copytobuf = lance_copytobuf_gap2; sc->sc_am7990.lsc.sc_copyfrombuf = lance_copyfrombuf_gap2; sc->sc_am7990.lsc.sc_zerobuf = lance_zerobuf_gap2; /* * Get the ethernet address out of rom */ lance_addr = (int *)vax_map_physmem(LE_ROM, 1); for (i = 0; i < 6; i++) sc->sc_am7990.lsc.sc_enaddr[i] = (u_char)lance_addr[i]; vax_unmap_physmem((vaddr_t)lance_addr, 1); memcpy(sc->sc_am7990.lsc.sc_ethercom.ec_if.if_xname, device_xname(self), IFNAMSIZ); am7990_config(&sc->sc_am7990); } /* * gap2: two bytes of data followed by two bytes of pad. * * Buffers must be 4-byte aligned. The code doesn't worry about * doing an extra byte. */ void lance_copytobuf_gap2(struct lance_softc *sc, void *fromv, int boff, int len) { volatile void *buf = sc->sc_mem; char *from = fromv; volatile uint16_t *bptr; if (boff & 0x1) { /* handle unaligned first byte */ bptr = ((volatile uint16_t *)buf) + (boff - 1); *bptr = (*from++ << 8) | (*bptr & 0xff); bptr += 2; len--; } else bptr = ((volatile uint16_t *)buf) + boff; while (len > 1) { *bptr = (from[1] << 8) | (from[0] & 0xff); bptr += 2; from += 2; len -= 2; } if (len == 1) *bptr = (uint16_t)*from; } void lance_copyfrombuf_gap2(struct lance_softc *sc, void *tov, int boff, int len) { volatile void *buf = sc->sc_mem; char *to = tov; volatile uint16_t *bptr; uint16_t tmp; if (boff & 0x1) { /* handle unaligned first byte */ bptr = ((volatile uint16_t *)buf) + (boff - 1); *to++ = (*bptr >> 8) & 0xff; bptr += 2; len--; } else bptr = ((volatile uint16_t *)buf) + boff; while (len > 1) { tmp = *bptr; *to++ = tmp & 0xff; *to++ = (tmp >> 8) & 0xff; bptr += 2; len -= 2; } if (len == 1) *to = *bptr & 0xff; } void lance_zerobuf_gap2(struct lance_softc *sc, int boff, int len) { volatile void *buf = sc->sc_mem; volatile uint16_t *bptr; if ((unsigned int)boff & 0x1) { bptr = ((volatile uint16_t *)buf) + (boff - 1); *bptr &= 0xff; bptr += 2; len--; } else bptr = ((volatile uint16_t *)buf) + boff; while (len > 0) { *bptr = 0; bptr += 2; len -= 2; } }