/* $NetBSD: atppc_isapnp.c,v 1.5 2006/03/29 06:51:47 thorpej Exp $ */ /*- * Copyright (c) 2004 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jaromir Dolecek. * * 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 NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation 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 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. */ #include __KERNEL_RCSID(0, "$NetBSD: atppc_isapnp.c,v 1.5 2006/03/29 06:51:47 thorpej Exp $"); #include "opt_atppc.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static int atppc_isapnp_match(struct device *, struct cfdata *, void *); static void atppc_isapnp_attach(struct device *, struct device *, void *); struct atppc_isapnp_softc { struct atppc_softc sc_atppc; isa_chipset_tag_t sc_ic; int sc_drq; }; CFATTACH_DECL(atppc_isapnp, sizeof(struct atppc_isapnp_softc), atppc_isapnp_match, atppc_isapnp_attach, NULL, NULL); static int atppc_isapnp_dma_start(struct atppc_softc *, void *, u_int, u_int8_t); static int atppc_isapnp_dma_finish(struct atppc_softc *); static int atppc_isapnp_dma_abort(struct atppc_softc *); static int atppc_isapnp_dma_malloc(struct device *, caddr_t *, bus_addr_t *, bus_size_t); static void atppc_isapnp_dma_free(struct device *, caddr_t *, bus_addr_t *, bus_size_t); /* * atppc_isapnp_match: autoconf(9) match routine */ static int atppc_isapnp_match(struct device *parent, struct cfdata *match, void *aux) { int pri, variant; pri = isapnp_devmatch(aux, &isapnp_atppc_devinfo, &variant); if (pri && variant > 0) pri = 0; return (pri); } static void atppc_isapnp_attach(struct device *parent, struct device *self, void *aux) { struct atppc_softc *sc = device_private(self); struct atppc_isapnp_softc *asc = device_private(self); struct isapnp_attach_args *ipa = aux; sc->sc_dev_ok = ATPPC_NOATTACH; printf(": AT Parallel Port\n"); if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) { printf("%s: error in region allocation\n", sc->sc_dev.dv_xname); return; } /* Attach */ sc->sc_iot = ipa->ipa_iot; sc->sc_ioh = ipa->ipa_io[0].h; sc->sc_has = 0; asc->sc_ic = ipa->ipa_ic; asc->sc_drq = -1; /* Initialized below */ sc->sc_dev_ok = ATPPC_ATTACHED; sc->sc_ieh = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num, ipa->ipa_irq[0].type, IPL_TTY, atppcintr, sc); sc->sc_has |= ATPPC_HAS_INTR; /* setup DMA hooks */ if (ipa->ipa_ndrq > 0 && atppc_isadma_setup(sc, asc->sc_ic, ipa->ipa_drq[0].num) == 0) { asc->sc_drq = ipa->ipa_drq[0].num; sc->sc_has |= ATPPC_HAS_DMA; sc->sc_dma_start = atppc_isapnp_dma_start; sc->sc_dma_finish = atppc_isapnp_dma_finish; sc->sc_dma_abort = atppc_isapnp_dma_abort; sc->sc_dma_malloc = atppc_isapnp_dma_malloc; sc->sc_dma_free = atppc_isapnp_dma_free; } /* Run soft configuration attach */ atppc_sc_attach(sc); } /* Start DMA operation over ISA bus */ static int atppc_isapnp_dma_start(struct atppc_softc *lsc, void *buf, u_int nbytes, u_int8_t mode) { struct atppc_isapnp_softc * sc = (struct atppc_isapnp_softc *) lsc; return atppc_isadma_start(sc->sc_ic, sc->sc_drq, buf, nbytes, mode); } /* Stop DMA operation over ISA bus */ static int atppc_isapnp_dma_finish(struct atppc_softc * lsc) { struct atppc_isapnp_softc * sc = (struct atppc_isapnp_softc *) lsc; return atppc_isadma_finish(sc->sc_ic, sc->sc_drq); } /* Abort DMA operation over ISA bus */ int atppc_isapnp_dma_abort(struct atppc_softc * lsc) { struct atppc_isapnp_softc * sc = (struct atppc_isapnp_softc *) lsc; return atppc_isadma_abort(sc->sc_ic, sc->sc_drq); } /* Allocate memory for DMA over ISA bus */ int atppc_isapnp_dma_malloc(struct device * dev, caddr_t * buf, bus_addr_t * bus_addr, bus_size_t size) { struct atppc_isapnp_softc * sc = (struct atppc_isapnp_softc *) dev; return atppc_isadma_malloc(sc->sc_ic, sc->sc_drq, buf, bus_addr, size); } /* Free memory allocated by atppc_isa_dma_malloc() */ void atppc_isapnp_dma_free(struct device * dev, caddr_t * buf, bus_addr_t * bus_addr, bus_size_t size) { struct atppc_isapnp_softc * sc = (struct atppc_isapnp_softc *) dev; return atppc_isadma_free(sc->sc_ic, sc->sc_drq, buf, bus_addr, size); }