Add acpi_fujitsu for handling acpi-controlled buttons on Fujitsu laptops.
Submitted by: Anish Mistry <mistry.7 -at- osu.edu> Reviewed by: njl X-MFC after: 5.4-RELEASE
This commit is contained in:
philip
parent
2e5f4224e9
commit
40a49548e5
563
sys/dev/acpi_support/acpi_fujitsu.c
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563
sys/dev/acpi_support/acpi_fujitsu.c
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/*-
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* Copyright (c) 2002 Sean Bullington <seanATstalker.org>
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* 2003-2005 Anish Mistry <amistry@am-productions.biz>
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* 2004 Mark Santcroos <marks@ripe.net>
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* All Rights Reserved.
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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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_acpi.h"
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/module.h>
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#include <sys/sysctl.h>
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#include "acpi.h"
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#include <dev/acpica/acpivar.h>
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/* Hooks for the ACPI CA debugging infrastructure */
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#define _COMPONENT ACPI_OEM
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ACPI_MODULE_NAME("Fujitsu")
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/* Change and update bits for the buttons */
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#define MOUSE_UPDATED_BIT 0x80000000
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#define VOLUME_MUTE_BIT 0x40000000
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#define VOLUME_CHANGE_BIT 0x80000000
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#define BRIGHTNESS_CHANGE_BIT 0x80000000
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/* Values of settings */
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#define GENERAL_SETTING_BITS 0x0fffffff
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#define MOUSE_SETTING_BITS GENERAL_SETTING_BITS
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#define VOLUME_SETTING_BITS GENERAL_SETTING_BITS
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#define BRIGHTNESS_SETTING_BITS GENERAL_SETTING_BITS
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/* Possible state changes */
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#define VOLUME_CHANGED 1
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#define BRIGHT_CHANGED 2
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#define MOUSE_CHANGED 3
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/* sysctl values */
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#define FN_MUTE 0
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#define FN_POINTER_ENABLE 1
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#define FN_LCD_BRIGHTNESS 2
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#define FN_VOLUME 3
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/* Methods */
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#define METHOD_GBLL 1
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#define METHOD_GMOU 2
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#define METHOD_GVOL 3
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#define METHOD_MUTE 4
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/* Notify event */
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#define ACPI_NOTIFY_STATUS_CHANGED 0x80
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/*
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* Holds a control method name and its associated integer value.
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* Only used for no-argument control methods which return a value.
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*/
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struct int_nameval {
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char *name;
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int value;
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};
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/*
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* Driver extension for the FUJITSU ACPI driver.
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*/
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struct acpi_fujitsu_softc {
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device_t dev;
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ACPI_HANDLE handle;
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/* Control methods */
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struct int_nameval _sta, /* unused */
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gbll, /* brightness */
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ghks, /* unused */
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gmou, /* mouse */
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gsif, /* unused */
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gvol, /* volume */
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rbll, /* unused */
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rvol; /* unused */
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/* State variables */
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uint8_t bIsMuted; /* Is volume muted */
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uint8_t bIntPtrEnabled; /* Is internal ptr enabled */
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uint32_t lastValChanged; /* The last value updated */
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/* sysctl tree */
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struct sysctl_ctx_list sysctl_ctx;
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struct sysctl_oid *sysctl_tree;
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};
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/* Driver entry point forward declarations. */
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static int acpi_fujitsu_probe(device_t dev);
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static int acpi_fujitsu_attach(device_t dev);
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static int acpi_fujitsu_detach(device_t dev);
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static int acpi_fujitsu_suspend(device_t dev);
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static int acpi_fujitsu_resume(device_t dev);
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static void acpi_fujitsu_notify_status_changed(void *arg);
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static void acpi_fujitsu_notify_handler(ACPI_HANDLE h, uint32_t notify, void *context);
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static int acpi_fujitsu_sysctl(SYSCTL_HANDLER_ARGS);
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/* Utility function declarations */
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static uint8_t acpi_fujitsu_update(struct acpi_fujitsu_softc *sc);
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static uint8_t acpi_fujitsu_init(struct acpi_fujitsu_softc *sc);
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/* Driver/Module specific structure definitions. */
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static device_method_t acpi_fujitsu_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, acpi_fujitsu_probe),
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DEVMETHOD(device_attach, acpi_fujitsu_attach),
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DEVMETHOD(device_detach, acpi_fujitsu_detach),
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DEVMETHOD(device_suspend, acpi_fujitsu_suspend),
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DEVMETHOD(device_resume, acpi_fujitsu_resume),
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{0, 0}
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};
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static driver_t acpi_fujitsu_driver = {
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"acpi_fujitsu",
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acpi_fujitsu_methods,
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sizeof(struct acpi_fujitsu_softc),
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};
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/* Prototype for function buttons for getting/setting a value. */
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static int acpi_fujitsu_method_get(struct acpi_fujitsu_softc *sc, int method);
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static int acpi_fujitsu_method_set(struct acpi_fujitsu_softc *sc, int method, int value);
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static char *fujitsu_ids[] = { "FUJ02B1", NULL };
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ACPI_SERIAL_DECL(fujitsu, "Fujitsu Function Buttons");
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/* sysctl names and function calls */
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static struct {
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char *name;
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int method;
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char *description;
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} sysctl_table[] = {
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{
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.name = "mute",
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.method = METHOD_MUTE,
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.description = "Speakers/headphones mute status"
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},
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{
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.name = "pointer_enable",
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.method = METHOD_GMOU,
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.description = "Enable and disable the internal pointer"
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},
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{
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.name = "lcd_brightness",
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.method = METHOD_GBLL,
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.description = "Brightness level of the LCD panel"
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},
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{
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.name = "volume",
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.method = METHOD_GVOL,
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.description = "Speakers/headphones volume level"
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},
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{ NULL, 0, NULL }
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};
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static devclass_t acpi_fujitsu_devclass;
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DRIVER_MODULE(acpi_fujitsu, acpi, acpi_fujitsu_driver,
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acpi_fujitsu_devclass, 0, 0);
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MODULE_DEPEND(acpi_fujitsu, acpi, 1, 1, 1);
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MODULE_VERSION(acpi_fujitsu, 1);
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static int
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acpi_fujitsu_probe(device_t dev)
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{
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if (acpi_disabled("fujitsu") ||
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ACPI_ID_PROBE(device_get_parent(dev), dev, fujitsu_ids) == NULL ||
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device_get_unit(dev) != 0)
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return (ENXIO);
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device_set_desc(dev, "Fujitsu Function Buttons");
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return (0);
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}
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static int
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acpi_fujitsu_attach(device_t dev)
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{
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struct acpi_fujitsu_softc *sc;
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ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
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sc = device_get_softc(dev);
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sc->dev = dev;
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sc->handle = acpi_get_handle(dev);
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/* Install notification handler */
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AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
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acpi_fujitsu_notify_handler, sc);
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/* Snag our default values for the buttons / button states. */
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if (!acpi_fujitsu_init(sc)) {
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device_printf(dev, "Couldn't initialize button states!\n");
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}
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return (0);
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}
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/*
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* Called when the system is being suspended, simply
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* set an event to be signalled when we wake up.
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*/
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static int
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acpi_fujitsu_suspend(device_t dev)
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{
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return (0);
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}
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static int
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acpi_fujitsu_resume(device_t dev)
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{
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struct acpi_fujitsu_softc *sc;
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ACPI_STATUS status;
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sc = device_get_softc(dev);
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/*
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* The pointer needs to be re-enabled for
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* some revisions of the P series (2120).
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*/
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ACPI_SERIAL_BEGIN(fujitsu);
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status = acpi_SetInteger(sc->handle, "SMOU", 1);
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if (ACPI_FAILURE(status))
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device_printf(sc->dev, "Couldn't enable pointer\n");
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ACPI_SERIAL_END(fujitsu);
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return (0);
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}
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static void
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acpi_fujitsu_notify_status_changed(void *arg)
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{
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struct acpi_fujitsu_softc *sc;
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ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
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sc = (struct acpi_fujitsu_softc *)arg;
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/*
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* Since our notify function is called, we know something has
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* happened. So the only reason for acpi_fujitsu_update to fail
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* is if we can't find what has changed or an error occurs.
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*/
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ACPI_SERIAL_BEGIN(fujitsu);
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acpi_fujitsu_update(sc);
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ACPI_SERIAL_END(fujitsu);
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}
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static void
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acpi_fujitsu_notify_handler(ACPI_HANDLE h, uint32_t notify, void *context)
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{
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struct acpi_fujitsu_softc *sc;
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ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
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sc = (struct acpi_fujitsu_softc *)context;
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switch (notify) {
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case ACPI_NOTIFY_STATUS_CHANGED:
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AcpiOsQueueForExecution(OSD_PRIORITY_LO,
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acpi_fujitsu_notify_status_changed, sc);
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break;
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default:
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/* unknown notification value */
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break;
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}
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}
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static int
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acpi_fujitsu_detach(device_t dev)
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{
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struct acpi_fujitsu_softc *sc;
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sc = device_get_softc(dev);
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AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
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acpi_fujitsu_notify_handler);
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sysctl_ctx_free(&sc->sysctl_ctx);
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return (0);
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}
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/*
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* Initializes the names of the ACPI control methods and grabs
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* the current state of all of the ACPI buttons into the softc.
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*/
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static uint8_t
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acpi_fujitsu_init(struct acpi_fujitsu_softc *sc)
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{
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struct acpi_softc *acpi_sc;
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int i;
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ACPI_SERIAL_ASSERT(fujitsu);
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/* Setup all of the names for each control method */
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sc->_sta.name = "_STA";
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sc->gbll.name = "GBLL";
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sc->ghks.name = "GHKS";
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sc->gmou.name = "GMOU";
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sc->gsif.name = "GSIF";
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sc->gvol.name = "GVOL";
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sc->rbll.name = "RBLL";
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sc->rvol.name = "RVOL";
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/* Build the sysctl tree */
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acpi_sc = acpi_device_get_parent_softc(sc->dev);
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sysctl_ctx_init(&sc->sysctl_ctx);
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sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
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SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree),
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OID_AUTO, "fujitsu", CTLFLAG_RD, 0, "");
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for (i = 0; sysctl_table[i].name != NULL; i++) {
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SYSCTL_ADD_PROC(&sc->sysctl_ctx,
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SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
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sysctl_table[i].name,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY,
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sc, i, acpi_fujitsu_sysctl, "I",
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sysctl_table[i].description);
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}
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/* Set the buttons to their initial states */
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if (!acpi_fujitsu_update(sc)) {
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device_printf(sc->dev, "Couldn't init button states\n");
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return (FALSE);
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}
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return (TRUE);
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}
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static int
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acpi_fujitsu_sysctl(SYSCTL_HANDLER_ARGS)
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{
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struct acpi_fujitsu_softc *sc;
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int method;
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int arg;
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int function_num, error = 0;
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sc = (struct acpi_fujitsu_softc *)oidp->oid_arg1;
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function_num = oidp->oid_arg2;
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method = sysctl_table[function_num].method;
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ACPI_SERIAL_BEGIN(fujitsu);
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/* Get the current value */
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arg = acpi_fujitsu_method_get(sc, method);
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error = sysctl_handle_int(oidp, &arg, 0, req);
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if (error != 0 || req->newptr == NULL)
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goto out;
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/* Update the value */
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error = acpi_fujitsu_method_set(sc, method, arg);
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out:
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ACPI_SERIAL_END(fujitsu);
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return (error);
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}
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static int
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acpi_fujitsu_method_get(struct acpi_fujitsu_softc *sc, int method)
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{
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struct int_nameval nv;
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ACPI_STATUS status;
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ACPI_SERIAL_ASSERT(fujitsu);
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switch (method) {
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case METHOD_GBLL:
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nv = sc->gbll;
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break;
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case METHOD_GMOU:
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nv = sc->gmou;
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break;
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case METHOD_GVOL:
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case METHOD_MUTE:
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nv = sc->gvol;
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break;
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default:
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return (FALSE);
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}
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status = acpi_GetInteger(sc->handle, nv.name, &nv.value);
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if (ACPI_FAILURE(status)) {
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device_printf(sc->dev, "Couldn't query method\n");
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return (FALSE);
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}
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if (method == METHOD_MUTE) {
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sc->bIsMuted = (uint8_t)((nv.value & VOLUME_MUTE_BIT) != 0);
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return (sc->bIsMuted);
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}
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nv.value &= GENERAL_SETTING_BITS;
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return (nv.value);
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}
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static int
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acpi_fujitsu_method_set(struct acpi_fujitsu_softc *sc, int method, int value)
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{
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struct int_nameval nv;
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ACPI_STATUS status;
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char *control;
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int changed;
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ACPI_SERIAL_ASSERT(fujitsu);
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switch (method) {
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case METHOD_GBLL:
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changed = BRIGHT_CHANGED;
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control = "SBLL";
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nv = sc->gbll;
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break;
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case METHOD_GMOU:
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changed = MOUSE_CHANGED;
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control = "SMOU";
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nv = sc->gmou;
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break;
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case METHOD_GVOL:
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case METHOD_MUTE:
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changed = VOLUME_CHANGED;
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control = "SVOL";
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nv = sc->gvol;
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break;
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default:
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return (EINVAL);
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}
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if (method == METHOD_MUTE) {
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if (value == 1)
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value = nv.value | VOLUME_MUTE_BIT;
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else if (value == 0)
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value = nv.value & ~VOLUME_MUTE_BIT;
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else
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return (EINVAL);
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}
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status = acpi_SetInteger(sc->handle, control, value);
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if (ACPI_FAILURE(status)) {
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device_printf(sc->dev, "Couldn't update %s\n", control);
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return (EINVAL);
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}
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sc->lastValChanged = changed;
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return (0);
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}
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/*
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* Query each of the ACPI control methods that contain information we're
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* interested in. We check the return values from the control methods and
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* adjust any state variables if they should be adjusted.
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*/
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static uint8_t
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acpi_fujitsu_update(struct acpi_fujitsu_softc *sc)
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{
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struct acpi_softc *acpi_sc;
|
||||
|
||||
acpi_sc = acpi_device_get_parent_softc(sc->dev);
|
||||
|
||||
ACPI_SERIAL_ASSERT(fujitsu);
|
||||
|
||||
/* System Volume Level */
|
||||
if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
|
||||
sc->gvol.name, &(sc->gvol.value)))) {
|
||||
device_printf(sc->dev, "Couldn't query volume level\n");
|
||||
return (FALSE);
|
||||
}
|
||||
|
||||
if (sc->gvol.value & VOLUME_CHANGE_BIT) {
|
||||
sc->bIsMuted =
|
||||
(uint8_t)((sc->gvol.value & VOLUME_MUTE_BIT) != 0);
|
||||
|
||||
/* Clear the modification bit */
|
||||
sc->gvol.value &= VOLUME_SETTING_BITS;
|
||||
|
||||
if (sc->bIsMuted) {
|
||||
acpi_UserNotify("FUJITSU", sc->handle, FN_MUTE);
|
||||
ACPI_VPRINT(sc->dev, acpi_sc, "Volume is now mute\n");
|
||||
} else
|
||||
ACPI_VPRINT(sc->dev, acpi_sc, "Volume is now %d\n",
|
||||
sc->gvol.value);
|
||||
|
||||
acpi_UserNotify("FUJITSU", sc->handle, FN_VOLUME);
|
||||
|
||||
sc->lastValChanged = VOLUME_CHANGED;
|
||||
}
|
||||
|
||||
/* Internal mouse pointer (eraserhead) */
|
||||
if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
|
||||
sc->gmou.name, &(sc->gmou.value)))) {
|
||||
device_printf(sc->dev, "Couldn't query pointer state\n");
|
||||
return (FALSE);
|
||||
}
|
||||
|
||||
if (sc->gmou.value & MOUSE_UPDATED_BIT) {
|
||||
sc->bIntPtrEnabled = (uint8_t)(sc->gmou.value & 0x1);
|
||||
|
||||
/* Clear the modification bit */
|
||||
sc->gmou.value &= MOUSE_SETTING_BITS;
|
||||
|
||||
acpi_UserNotify("FUJITSU", sc->handle, FN_POINTER_ENABLE);
|
||||
|
||||
ACPI_VPRINT(sc->dev, acpi_sc, "Internal pointer is now %s\n",
|
||||
(sc->bIntPtrEnabled) ? "enabled" : "disabled");
|
||||
|
||||
sc->lastValChanged = MOUSE_CHANGED;
|
||||
}
|
||||
|
||||
/* Screen Brightness Level */
|
||||
if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
|
||||
sc->gbll.name, &(sc->gbll.value)))) {
|
||||
device_printf(sc->dev, "Couldn't query brightness level\n");
|
||||
return (FALSE);
|
||||
}
|
||||
|
||||
if (sc->gbll.value & BRIGHTNESS_CHANGE_BIT) {
|
||||
/* No state to record here. */
|
||||
|
||||
/* Clear the modification bit */
|
||||
sc->gbll.value &= BRIGHTNESS_SETTING_BITS;
|
||||
|
||||
acpi_UserNotify("FUJITSU", sc->handle, FN_LCD_BRIGHTNESS);
|
||||
|
||||
ACPI_VPRINT(sc->dev, acpi_sc, "Brightness level is now %d\n",
|
||||
sc->gbll.value);
|
||||
|
||||
sc->lastValChanged = BRIGHT_CHANGED;
|
||||
}
|
||||
|
||||
return (TRUE);
|
||||
}
|
||||
@ -8,7 +8,7 @@
|
||||
.error "The ACPI module is only for i386"
|
||||
.endif
|
||||
|
||||
SUBDIR= acpi acpi_asus acpi_ibm acpi_panasonic acpi_sony \
|
||||
SUBDIR= acpi acpi_asus acpi_fujitsu acpi_ibm acpi_panasonic acpi_sony \
|
||||
acpi_toshiba acpi_video
|
||||
|
||||
.include <bsd.subdir.mk>
|
||||
|
||||
10
sys/modules/acpi/acpi_fujitsu/Makefile
Normal file
10
sys/modules/acpi/acpi_fujitsu/Makefile
Normal file
@ -0,0 +1,10 @@
|
||||
# $FreeBSD$
|
||||
|
||||
.PATH: ${.CURDIR}/../../../dev/acpi_support
|
||||
|
||||
KMOD= acpi_fujitsu
|
||||
CFLAGS+=-I${.CURDIR}/../../../dev/acpi_support \
|
||||
-I${.CURDIR}/../../../contrib/dev/acpica
|
||||
SRCS= acpi_fujitsu.c opt_acpi.h acpi_if.h device_if.h bus_if.h
|
||||
|
||||
.include <bsd.kmod.mk>
|
||||
Loading…
Reference in New Issue
Block a user