/* $NetBSD: atppc_acpi.c,v 1.22 2021/01/29 15:49:55 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. * * 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_acpi.c,v 1.22 2021/01/29 15:49:55 thorpej Exp $"); #include "opt_atppc.h" #include #include #include #include #include #include #include #include #include static int atppc_acpi_match(device_t, cfdata_t, void *); static void atppc_acpi_attach(device_t, device_t, void *); struct atppc_acpi_softc { struct atppc_softc sc_atppc; isa_chipset_tag_t sc_ic; int sc_drq; }; CFATTACH_DECL_NEW(atppc_acpi, sizeof(struct atppc_acpi_softc), atppc_acpi_match, atppc_acpi_attach, NULL, NULL); /* * Supported device IDs */ static const struct device_compatible_entry compat_data[] = { { .compat = "PNP04??" }, /* Standard AT printer port */ DEVICE_COMPAT_EOL }; static int atppc_acpi_dma_start(struct atppc_softc *, void *, u_int, u_int8_t); static int atppc_acpi_dma_finish(struct atppc_softc *); static int atppc_acpi_dma_abort(struct atppc_softc *); static int atppc_acpi_dma_malloc(device_t, void **, bus_addr_t *, bus_size_t); static void atppc_acpi_dma_free(device_t, void **, bus_addr_t *, bus_size_t); /* * atppc_acpi_match: autoconf(9) match routine */ static int atppc_acpi_match(device_t parent, cfdata_t match, void *aux) { struct acpi_attach_args *aa = aux; return acpi_compatible_match(aa, compat_data); } static void atppc_acpi_attach(device_t parent, device_t self, void *aux) { struct atppc_softc *sc = device_private(self); struct atppc_acpi_softc *asc = device_private(self); struct acpi_attach_args *aa = aux; struct acpi_resources res; struct acpi_io *io; struct acpi_drq *drq; ACPI_STATUS rv; sc->sc_dev_ok = ATPPC_NOATTACH; sc->sc_dev = self; /* parse resources */ rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS", &res, &acpi_resource_parse_ops_default); if (ACPI_FAILURE(rv)) return; /* find our i/o registers */ io = acpi_res_io(&res, 0); if (io == NULL) { aprint_error_dev(sc->sc_dev, "unable to find i/o register resource\n"); goto out; } /* find our DRQ */ drq = acpi_res_drq(&res, 0); if (drq == NULL) { aprint_error_dev(sc->sc_dev, "unable to find drq resource\n"); goto out; } asc->sc_drq = drq->ar_drq; /* Attach */ sc->sc_iot = aa->aa_iot; sc->sc_has = 0; asc->sc_ic = aa->aa_ic; sc->sc_dev_ok = ATPPC_ATTACHED; if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length, 0, &sc->sc_ioh) != 0) { aprint_error_dev(self, "attempt to map bus space failed, device not " "properly attached.\n"); goto out; } sc->sc_ieh = acpi_intr_establish(self, (uint64_t)(uintptr_t)aa->aa_node->ad_handle, IPL_TTY, false, atppcintr, self, device_xname(self)); if (sc->sc_ieh == NULL) { aprint_error_dev(self, "unable to establish interrupt\n"); goto out; } /* 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_acpi_dma_start; sc->sc_dma_finish = atppc_acpi_dma_finish; sc->sc_dma_abort = atppc_acpi_dma_abort; sc->sc_dma_malloc = atppc_acpi_dma_malloc; sc->sc_dma_free = atppc_acpi_dma_free; } sc->sc_has |= ATPPC_HAS_INTR; /* Run soft configuration attach */ atppc_sc_attach(sc); out: acpi_resource_cleanup(&res); } /* Start DMA operation over ISA bus */ static int atppc_acpi_dma_start(struct atppc_softc *lsc, void *buf, u_int nbytes, u_int8_t mode) { struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc; return atppc_isadma_start(sc->sc_ic, sc->sc_drq, buf, nbytes, mode); } /* Stop DMA operation over ISA bus */ static int atppc_acpi_dma_finish(struct atppc_softc * lsc) { struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc; return atppc_isadma_finish(sc->sc_ic, sc->sc_drq); } /* Abort DMA operation over ISA bus */ int atppc_acpi_dma_abort(struct atppc_softc * lsc) { struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc; return atppc_isadma_abort(sc->sc_ic, sc->sc_drq); } /* Allocate memory for DMA over ISA bus */ static int atppc_acpi_dma_malloc(device_t dev, void ** buf, bus_addr_t * bus_addr, bus_size_t size) { struct atppc_acpi_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() */ static void atppc_acpi_dma_free(device_t dev, void ** buf, bus_addr_t * bus_addr, bus_size_t size) { struct atppc_acpi_softc * sc = device_private(dev); return atppc_isadma_free(sc->sc_ic, sc->sc_drq, buf, bus_addr, size); }