717 lines
17 KiB
C
717 lines
17 KiB
C
/*-
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* Copyright (c) 2002 Sean Bullington <seanATstalker.org>
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* 2003-2006 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 <contrib/dev/acpica/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 hotkeys */
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#define VOLUME_MUTE_BIT 0x40000000
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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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/*
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* These are NOT arbitrary values. They are the
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* GHKS return value from the device that says which
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* hotkey is active. They should match up with a bit
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* from the GSIF bitmask.
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*/
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#define BRIGHT_CHANGED 0x01
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#define VOLUME_CHANGED 0x04
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#define MOUSE_CHANGED 0x08
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/*
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* It is unknown which hotkey this bit is supposed to indicate, but
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* according to values from GSIF this is a valid flag.
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*/
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#define UNKNOWN_CHANGED 0x10
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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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#define METHOD_RBLL 5
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#define METHOD_RVOL 6
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#define METHOD_GSIF 7
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#define METHOD_GHKS 8
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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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int exists;
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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, /* hotkey selector */
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gbuf, /* unused (buffer?) */
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gmou, /* mouse */
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gsif, /* function key bitmask */
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gvol, /* volume */
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rbll, /* number of brightness levels (radix) */
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rvol; /* number of volume levels (radix) */
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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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static uint8_t acpi_fujitsu_check_hardware(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 hotkeys 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 Hotkeys");
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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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{
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.name = "volume_radix",
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.method = METHOD_RVOL,
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.description = "Number of volume level steps"
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},
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{
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.name = "lcd_brightness_radix",
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.method = METHOD_RBLL,
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.description = "Number of brightness level steps"
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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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char *name;
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char buffer[64];
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name = ACPI_ID_PROBE(device_get_parent(dev), dev, fujitsu_ids);
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if (acpi_disabled("fujitsu") || name == NULL ||
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device_get_unit(dev) > 1)
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return (ENXIO);
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sprintf(buffer, "Fujitsu Function Hotkeys %s", name);
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device_set_desc_copy(dev, buffer);
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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 hotkeys / hotkey states. */
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ACPI_SERIAL_BEGIN(fujitsu);
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if (!acpi_fujitsu_init(sc))
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device_printf(dev, "Couldn't initialize hotkey states!\n");
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ACPI_SERIAL_END(fujitsu);
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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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if(sc->gmou.exists) {
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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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}
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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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AcpiOsExecute(OSL_NOTIFY_HANDLER,
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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 hotkeys 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, exists;
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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->ghks.name = "GHKS";
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sc->gsif.name = "GSIF";
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sc->rbll.name = "RBLL";
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sc->rvol.name = "RVOL";
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/* Determine what hardware functionality is available */
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acpi_fujitsu_check_hardware(sc);
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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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exists = 0;
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switch(sysctl_table[i].method) {
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case METHOD_GMOU:
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exists = sc->gmou.exists;
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break;
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case METHOD_GBLL:
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exists = sc->gbll.exists;
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break;
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case METHOD_GVOL:
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case METHOD_MUTE:
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exists = sc->gvol.exists;
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break;
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case METHOD_RVOL:
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exists = sc->rvol.exists;
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break;
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case METHOD_RBLL:
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exists = sc->rbll.exists;
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break;
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default:
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/* Allow by default */
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exists = 1;
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break;
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}
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if(!exists)
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continue;
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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 hotkeys to their initial states */
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if (!acpi_fujitsu_update(sc)) {
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device_printf(sc->dev, "Couldn't init hotkey 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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case METHOD_GHKS:
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nv = sc->ghks;
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break;
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case METHOD_GSIF:
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nv = sc->gsif;
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break;
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case METHOD_RBLL:
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nv = sc->rbll;
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break;
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case METHOD_RVOL:
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nv = sc->rvol;
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break;
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default:
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return (FALSE);
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}
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if(!nv.exists)
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return (EINVAL);
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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 (%s)\n", nv.name);
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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";
|
|
nv = sc->gvol;
|
|
break;
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
|
|
if(!nv.exists)
|
|
return (EINVAL);
|
|
|
|
if (method == METHOD_MUTE) {
|
|
if (value == 1)
|
|
value = nv.value | VOLUME_MUTE_BIT;
|
|
else if (value == 0)
|
|
value = nv.value & ~VOLUME_MUTE_BIT;
|
|
else
|
|
return (EINVAL);
|
|
}
|
|
|
|
status = acpi_SetInteger(sc->handle, control, value);
|
|
if (ACPI_FAILURE(status)) {
|
|
device_printf(sc->dev, "Couldn't update %s\n", control);
|
|
return (FALSE);
|
|
}
|
|
|
|
sc->lastValChanged = changed;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Query the get methods to determine what functionality is available
|
|
* from the hardware function hotkeys.
|
|
*/
|
|
static uint8_t
|
|
acpi_fujitsu_check_hardware(struct acpi_fujitsu_softc *sc)
|
|
{
|
|
int val;
|
|
struct acpi_softc *acpi_sc;
|
|
|
|
acpi_sc = acpi_device_get_parent_softc(sc->dev);
|
|
|
|
ACPI_SERIAL_ASSERT(fujitsu);
|
|
/* save the hotkey bitmask */
|
|
if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
|
|
sc->gsif.name, &(sc->gsif.value)))) {
|
|
sc->gsif.exists = 0;
|
|
device_printf(sc->dev, "Couldn't query bitmask value\n");
|
|
} else {
|
|
sc->gsif.exists = 1;
|
|
}
|
|
|
|
/* System Volume Level */
|
|
if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
|
|
sc->gvol.name, &val))) {
|
|
sc->gvol.exists = 0;
|
|
} else {
|
|
sc->gvol.exists = 1;
|
|
}
|
|
|
|
if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
|
|
sc->gbll.name, &val))) {
|
|
sc->gbll.exists = 0;
|
|
} else {
|
|
sc->gbll.exists = 1;
|
|
}
|
|
|
|
if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
|
|
sc->ghks.name, &val))) {
|
|
sc->ghks.exists = 0;
|
|
} else {
|
|
sc->ghks.exists = 1;
|
|
}
|
|
|
|
if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
|
|
sc->gmou.name, &val))) {
|
|
sc->gmou.exists = 0;
|
|
} else {
|
|
sc->gmou.exists = 1;
|
|
}
|
|
|
|
if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
|
|
sc->rbll.name, &val))) {
|
|
sc->rbll.exists = 0;
|
|
} else {
|
|
sc->rbll.exists = 1;
|
|
}
|
|
|
|
if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
|
|
sc->rvol.name, &val))) {
|
|
sc->rvol.exists = 0;
|
|
} else {
|
|
sc->rvol.exists = 1;
|
|
}
|
|
|
|
return (TRUE);
|
|
}
|
|
|
|
/*
|
|
* Query each of the ACPI control methods that contain information we're
|
|
* interested in. We check the return values from the control methods and
|
|
* adjust any state variables if they should be adjusted.
|
|
*/
|
|
static uint8_t
|
|
acpi_fujitsu_update(struct acpi_fujitsu_softc *sc)
|
|
{
|
|
int changed;
|
|
struct acpi_softc *acpi_sc;
|
|
|
|
acpi_sc = acpi_device_get_parent_softc(sc->dev);
|
|
|
|
ACPI_SERIAL_ASSERT(fujitsu);
|
|
if(sc->gsif.exists)
|
|
changed = sc->gsif.value & acpi_fujitsu_method_get(sc,METHOD_GHKS);
|
|
else
|
|
changed = 0;
|
|
|
|
/* System Volume Level */
|
|
if(sc->gvol.exists) {
|
|
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 (changed & VOLUME_CHANGED) {
|
|
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);
|
|
}
|
|
}
|
|
|
|
/* Internal mouse pointer (eraserhead) */
|
|
if(sc->gmou.exists) {
|
|
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 (changed & MOUSE_CHANGED) {
|
|
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");
|
|
}
|
|
}
|
|
|
|
/* Screen Brightness Level */
|
|
if(sc->gbll.exists) {
|
|
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 (changed & BRIGHT_CHANGED) {
|
|
/* 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 = changed;
|
|
return (TRUE);
|
|
}
|