/* $NetBSD: if_le_isapnp.c,v 1.35 2010/11/13 13:52:03 uebayasi Exp $ */ /*- * Copyright (c) 1997 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * 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) 1997 Jonathan Stone and * Matthias Drochner. All rights reserved. * * 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 Jonathan Stone. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. */ #include __KERNEL_RCSID(0, "$NetBSD: if_le_isapnp.c,v 1.35 2010/11/13 13:52:03 uebayasi Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define LE_ISAPNP_MEMSIZE 16384 #define PCNET_SAPROM 0x00 #define PCNET_RDP 0x10 #define PCNET_RAP 0x12 /* * Ethernet software status per interface. * * Each interface is referenced by a network interface structure, * ethercom.ec_if, which the routing code uses to locate the interface. * This structure contains the output queue for the interface, its address, ... */ struct le_isapnp_softc { struct am7990_softc sc_am7990; /* glue to MI code */ void *sc_ih; bus_space_tag_t sc_iot; /* space cookie */ bus_space_handle_t sc_ioh; /* bus space handle */ bus_dma_tag_t sc_dmat; /* bus dma tag */ bus_dmamap_t sc_dmam; /* bus dma map */ int sc_rap, sc_rdp; /* offsets to LANCE registers */ }; int le_isapnp_match(device_t, cfdata_t, void *); void le_isapnp_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(le_isapnp, sizeof(struct le_isapnp_softc), le_isapnp_match, le_isapnp_attach, NULL, NULL); int le_isapnp_intredge(void *); static void le_isapnp_wrcsr(struct lance_softc *, uint16_t, uint16_t); static uint16_t le_isapnp_rdcsr(struct lance_softc *, uint16_t); static void le_isapnp_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) { struct le_isapnp_softc *lesc = (struct le_isapnp_softc *)sc; bus_space_tag_t iot = lesc->sc_iot; bus_space_handle_t ioh = lesc->sc_ioh; bus_space_write_2(iot, ioh, lesc->sc_rap, port); bus_space_write_2(iot, ioh, lesc->sc_rdp, val); } static uint16_t le_isapnp_rdcsr(struct lance_softc *sc, uint16_t port) { struct le_isapnp_softc *lesc = (struct le_isapnp_softc *)sc; bus_space_tag_t iot = lesc->sc_iot; bus_space_handle_t ioh = lesc->sc_ioh; uint16_t val; bus_space_write_2(iot, ioh, lesc->sc_rap, port); val = bus_space_read_2(iot, ioh, lesc->sc_rdp); return (val); } int le_isapnp_match(device_t parent, cfdata_t cf, void *aux) { int pri, variant; pri = isapnp_devmatch(aux, &isapnp_le_devinfo, &variant); if (pri && variant > 0) pri = 0; return (pri); } void le_isapnp_attach(device_t parent, device_t self, void *aux) { struct le_isapnp_softc *lesc = device_private(self); struct lance_softc *sc = &lesc->sc_am7990.lsc; struct isapnp_attach_args *ipa = aux; bus_space_tag_t iot; bus_space_handle_t ioh; bus_dma_tag_t dmat; bus_dma_segment_t seg; int i, rseg, error; sc->sc_dev = self; if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) { aprint_error(": error in region allocation\n"); return; } lesc->sc_iot = iot = ipa->ipa_iot; lesc->sc_ioh = ioh = ipa->ipa_io[0].h; lesc->sc_dmat = dmat = ipa->ipa_dmat; lesc->sc_rap = PCNET_RAP; lesc->sc_rdp = PCNET_RDP; /* * Extract the physical MAC address from the ROM. */ for (i = 0; i < sizeof(sc->sc_enaddr); i++) sc->sc_enaddr[i] = bus_space_read_1(iot, ioh, PCNET_SAPROM + i); /* * Allocate a DMA area for the card. */ if (bus_dmamem_alloc(dmat, LE_ISAPNP_MEMSIZE, PAGE_SIZE, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT)) { aprint_error(": couldn't allocate memory for card\n"); return; } if (bus_dmamem_map(dmat, &seg, rseg, LE_ISAPNP_MEMSIZE, (void **)&sc->sc_mem, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { aprint_error(": couldn't map memory for card\n"); return; } /* * Create and load the DMA map for the DMA area. */ if (bus_dmamap_create(dmat, LE_ISAPNP_MEMSIZE, 1, LE_ISAPNP_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) { aprint_error(": couldn't create DMA map\n"); bus_dmamem_free(dmat, &seg, rseg); return; } if (bus_dmamap_load(dmat, lesc->sc_dmam, sc->sc_mem, LE_ISAPNP_MEMSIZE, NULL, BUS_DMA_NOWAIT)) { aprint_error(": coundn't load DMA map\n"); bus_dmamem_free(dmat, &seg, rseg); return; } sc->sc_conf3 = 0; sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr; sc->sc_memsize = LE_ISAPNP_MEMSIZE; sc->sc_copytodesc = lance_copytobuf_contig; sc->sc_copyfromdesc = lance_copyfrombuf_contig; sc->sc_copytobuf = lance_copytobuf_contig; sc->sc_copyfrombuf = lance_copyfrombuf_contig; sc->sc_zerobuf = lance_zerobuf_contig; sc->sc_rdcsr = le_isapnp_rdcsr; sc->sc_wrcsr = le_isapnp_wrcsr; sc->sc_hwinit = NULL; if (ipa->ipa_ndrq > 0) { if ((error = isa_dmacascade(ipa->ipa_ic, ipa->ipa_drq[0].num)) != 0) { aprint_error(": unable to cascade DRQ, error = %d\n", error); return; } } lesc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num, ipa->ipa_irq[0].type, IPL_NET, le_isapnp_intredge, sc); aprint_normal(": %s %s\n", ipa->ipa_devident, ipa->ipa_devclass); aprint_normal("%s", device_xname(self)); am7990_config(&lesc->sc_am7990); } /* * Controller interrupt. */ int le_isapnp_intredge(void *arg) { if (am7990_intr(arg) == 0) return (0); for (;;) if (am7990_intr(arg) == 0) return (1); }