/* $NetBSD: atppc_ofisa.c,v 1.10 2008/04/28 20:23:54 martin 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. * * 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_ofisa.c,v 1.10 2008/04/28 20:23:54 martin Exp $"); #include "opt_atppc.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include static int atppc_ofisa_match(device_t, cfdata_t, void *); static void atppc_ofisa_attach(device_t, device_t, void *); struct atppc_ofisa_softc { struct atppc_softc sc_atppc; isa_chipset_tag_t sc_ic; int sc_drq; }; CFATTACH_DECL_NEW(atppc_ofisa, sizeof(struct atppc_ofisa_softc), atppc_ofisa_match, atppc_ofisa_attach, NULL, NULL); static int atppc_ofisa_dma_start(struct atppc_softc *, void *, u_int, u_int8_t); static int atppc_ofisa_dma_finish(struct atppc_softc *); static int atppc_ofisa_dma_abort(struct atppc_softc *); static int atppc_ofisa_dma_malloc(device_t, void **, bus_addr_t *, bus_size_t); static void atppc_ofisa_dma_free(device_t, void **, bus_addr_t *, bus_size_t); /* * atppc_ofisa_match: autoconf(9) match routine */ static int atppc_ofisa_match(device_t parent, cfdata_t match, void *aux) { struct ofisa_attach_args *aa = aux; static const char *const compatible_strings[] = { "pnpPNP,401", NULL }; int rv = 0; if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) rv = 5; #ifdef _LPT_OFISA_MD_MATCH if (!rv) rv = lpt_ofisa_md_match(parent, match, aux); #endif return (rv); } static void atppc_ofisa_attach(device_t parent, device_t self, void *aux) { struct atppc_softc *sc = device_private(self); struct atppc_ofisa_softc *asc = device_private(self); struct ofisa_attach_args *aa = aux; struct ofisa_reg_desc reg; struct ofisa_intr_desc intr; struct ofisa_dma_desc dma; int n; sc->sc_dev_ok = ATPPC_NOATTACH; printf(": AT Parallel Port\n"); /* find our I/O space */ n = ofisa_reg_get(aa->oba.oba_phandle, ®, 1); #ifdef _LPT_OFISA_MD_REG_FIXUP n = lpt_ofisa_md_reg_fixup(parent, self, aux, ®, 1, n); #endif if (n != 1) { aprint_error_dev(sc->sc_dev, "unable to find i/o register resource\n"); return; } /* find our IRQ */ n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1); #ifdef _LPT_OFISA_MD_INTR_FIXUP n = lpt_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n); #endif if (n != 1) { aprint_error_dev(sc->sc_dev, "unable to find irq resource\n"); return; } /* find our DRQ */ if (ofisa_dma_get(aa->oba.oba_phandle, &dma, 1) != 1) { aprint_error_dev(sc->sc_dev, "unable to find DMA data\n"); return; } asc->sc_drq = dma.drq; /* Attach */ sc->sc_dev = self; sc->sc_iot = (reg.type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt; sc->sc_has = 0; asc->sc_ic = aa->ic; sc->sc_dev_ok = ATPPC_ATTACHED; if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh) != 0) { aprint_error_dev(self, "attempt to map bus space failed, device not " "properly attached.\n"); return; } sc->sc_ieh = isa_intr_establish(aa->ic, intr.irq, intr.share, IPL_TTY, atppcintr, sc); sc->sc_has |= ATPPC_HAS_INTR; /* setup DMA hooks */ if (atppc_isadma_setup(sc, asc->sc_ic, asc->sc_drq) == 0) { sc->sc_has |= ATPPC_HAS_DMA; sc->sc_dma_start = atppc_ofisa_dma_start; sc->sc_dma_finish = atppc_ofisa_dma_finish; sc->sc_dma_abort = atppc_ofisa_dma_abort; sc->sc_dma_malloc = atppc_ofisa_dma_malloc; sc->sc_dma_free = atppc_ofisa_dma_free; } /* Run soft configuration attach */ atppc_sc_attach(sc); } /* Start DMA operation over ISA bus */ static int atppc_ofisa_dma_start(struct atppc_softc *lsc, void *buf, u_int nbytes, u_int8_t mode) { struct atppc_ofisa_softc * sc = (struct atppc_ofisa_softc *) lsc; return atppc_isadma_start(sc->sc_ic, sc->sc_drq, buf, nbytes, mode); } /* Stop DMA operation over ISA bus */ static int atppc_ofisa_dma_finish(struct atppc_softc * lsc) { struct atppc_ofisa_softc * sc = (struct atppc_ofisa_softc *) lsc; return atppc_isadma_finish(sc->sc_ic, sc->sc_drq); } /* Abort DMA operation over ISA bus */ int atppc_ofisa_dma_abort(struct atppc_softc * lsc) { struct atppc_ofisa_softc * sc = (struct atppc_ofisa_softc *) lsc; return atppc_isadma_abort(sc->sc_ic, sc->sc_drq); } /* Allocate memory for DMA over ISA bus */ int atppc_ofisa_dma_malloc(device_t dev, void ** buf, bus_addr_t * bus_addr, bus_size_t size) { struct atppc_ofisa_softc * sc = device_private(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_ofisa_dma_free(device_t dev, void ** buf, bus_addr_t * bus_addr, bus_size_t size) { struct atppc_ofisa_softc * sc = device_private(dev); return atppc_isadma_free(sc->sc_ic, sc->sc_drq, buf, bus_addr, size); }