f86e60008b
o Remove All Rights Reserved from my notices o imp@FreeBSD.org everywhere o regularize punctiation, eliminate date ranges o Make sure that it's clear that I don't claim All Rights reserved by listing All Rights Reserved on same line as other copyright holders (but not me). Other such holders are also listed last where it's clear.
103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2001 M. Warner Losh <imp@FreeBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <dev/uart/uart.h>
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#include <dev/uart/uart_bus.h>
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#include <dev/uart/uart_cpu_acpi.h>
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#include <contrib/dev/acpica/include/acpi.h>
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#include <contrib/dev/acpica/include/accommon.h>
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#include <dev/acpica/acpivar.h>
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static int uart_acpi_probe(device_t dev);
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static device_method_t uart_acpi_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, uart_acpi_probe),
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DEVMETHOD(device_attach, uart_bus_attach),
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DEVMETHOD(device_detach, uart_bus_detach),
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DEVMETHOD(device_resume, uart_bus_resume),
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{ 0, 0 }
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};
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static driver_t uart_acpi_driver = {
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uart_driver_name,
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uart_acpi_methods,
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sizeof(struct uart_softc),
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};
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static struct acpi_uart_compat_data *
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uart_acpi_find_device(device_t dev)
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{
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struct acpi_uart_compat_data **cd, *cd_it;
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ACPI_HANDLE h;
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if ((h = acpi_get_handle(dev)) == NULL)
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return (NULL);
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SET_FOREACH(cd, uart_acpi_class_and_device_set) {
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for (cd_it = *cd; cd_it->cd_hid != NULL; cd_it++) {
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if (acpi_MatchHid(h, cd_it->cd_hid))
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return (cd_it);
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}
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}
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return (NULL);
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}
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static int
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uart_acpi_probe(device_t dev)
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{
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struct uart_softc *sc;
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struct acpi_uart_compat_data *cd;
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sc = device_get_softc(dev);
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if ((cd = uart_acpi_find_device(dev)) != NULL) {
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sc->sc_class = cd->cd_class;
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if (cd->cd_desc != NULL)
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device_set_desc(dev, cd->cd_desc);
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return (uart_bus_probe(dev, cd->cd_regshft, cd->cd_regiowidth,
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cd->cd_rclk, 0, 0, cd->cd_quirks));
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}
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return (ENXIO);
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}
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DRIVER_MODULE(uart, acpi, uart_acpi_driver, uart_devclass, 0, 0);
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