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ig4_acpi.c
(5.04 KB)
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ig4_iic.c
(32.15 KB)
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ig4_pci.c
(14.57 KB)
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ig4_reg.h
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ig4_var.h
(3.82 KB)
Editing: ig4_acpi.c
/*- * Copyright (c) 2016 Oleksandr Tymoshenko <gonzo@FreeBSD.org> * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include "opt_acpi.h" #include <sys/param.h> #include <sys/bus.h> #include <sys/kernel.h> #include <sys/module.h> #include <sys/proc.h> #include <sys/rman.h> #include <machine/bus.h> #include <machine/resource.h> #include <contrib/dev/acpica/include/acpi.h> #include <contrib/dev/acpica/include/accommon.h> #include <dev/acpica/acpivar.h> #include <dev/iicbus/iiconf.h> #include <dev/ichiic/ig4_reg.h> #include <dev/ichiic/ig4_var.h> static int ig4iic_acpi_probe(device_t dev); static int ig4iic_acpi_attach(device_t dev); static int ig4iic_acpi_detach(device_t dev); static char *ig4iic_ids[] = { "INT33C2", "INT33C3", "INT3432", "INT3433", "80860F41", "808622C1", "AMDI0510", "AMDI0010", "APMC0D0F", NULL }; static int ig4iic_acpi_probe(device_t dev) { int rv; if (acpi_disabled("ig4iic")) return (ENXIO); rv = ACPI_ID_PROBE(device_get_parent(dev), dev, ig4iic_ids, NULL); if (rv > 0) return (rv); device_set_desc(dev, "Designware I2C Controller"); return (rv); } static int ig4iic_acpi_attach(device_t dev) { ig4iic_softc_t *sc; int error; sc = device_get_softc(dev); sc->dev = dev; /* All the HIDs matched are Atom SOCs. */ sc->version = IG4_ATOM; sc->regs_rid = 0; sc->regs_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->regs_rid, RF_ACTIVE); if (sc->regs_res == NULL) { device_printf(dev, "unable to map registers\n"); ig4iic_acpi_detach(dev); return (ENXIO); } sc->intr_rid = 0; sc->intr_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->intr_rid, RF_SHAREABLE | RF_ACTIVE); if (sc->intr_res == NULL) { device_printf(dev, "unable to map interrupt\n"); ig4iic_acpi_detach(dev); return (ENXIO); } sc->platform_attached = 1; error = ig4iic_attach(sc); if (error) ig4iic_acpi_detach(dev); return (error); } static int ig4iic_acpi_detach(device_t dev) { ig4iic_softc_t *sc = device_get_softc(dev); int error; if (sc->platform_attached) { error = ig4iic_detach(sc); if (error) return (error); sc->platform_attached = 0; } if (sc->intr_res) { bus_release_resource(dev, SYS_RES_IRQ, sc->intr_rid, sc->intr_res); sc->intr_res = NULL; } if (sc->regs_res) { bus_release_resource(dev, SYS_RES_MEMORY, sc->regs_rid, sc->regs_res); sc->regs_res = NULL; } return (0); } static int ig4iic_acpi_suspend(device_t dev) { ig4iic_softc_t *sc = device_get_softc(dev); return (ig4iic_suspend(sc)); } static int ig4iic_acpi_resume(device_t dev) { ig4iic_softc_t *sc = device_get_softc(dev); return (ig4iic_resume(sc)); } static device_method_t ig4iic_acpi_methods[] = { /* Device interface */ DEVMETHOD(device_probe, ig4iic_acpi_probe), DEVMETHOD(device_attach, ig4iic_acpi_attach), DEVMETHOD(device_detach, ig4iic_acpi_detach), DEVMETHOD(device_suspend, ig4iic_acpi_suspend), DEVMETHOD(device_resume, ig4iic_acpi_resume), /* Bus interface */ DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource), DEVMETHOD(bus_release_resource, bus_generic_release_resource), DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), DEVMETHOD(bus_adjust_resource, bus_generic_adjust_resource), /* iicbus interface */ DEVMETHOD(iicbus_transfer, ig4iic_transfer), DEVMETHOD(iicbus_reset, ig4iic_reset), DEVMETHOD(iicbus_callback, ig4iic_callback), DEVMETHOD_END }; static driver_t ig4iic_acpi_driver = { "ig4iic", ig4iic_acpi_methods, sizeof(struct ig4iic_softc), }; DRIVER_MODULE_ORDERED(ig4iic, acpi, ig4iic_acpi_driver, ig4iic_devclass, 0, 0, SI_ORDER_ANY); MODULE_DEPEND(ig4iic, acpi, 1, 1, 1);
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