647e5349ec
modules is a very nice way to produce hard-to-find panics. Who would look for a bug in a Makefile anyway? Has anyone seen the pointy hat? :-o Approved by: njl (mentor)
618 lines
14 KiB
C
618 lines
14 KiB
C
/*-
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* Copyright (c) 2004 Philip Paeps <philip@FreeBSD.org>
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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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/*
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* Driver for extra ACPI-controlled gadgets (hotkeys, leds, etc) found on
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* recent Asus (and Medion) laptops. Inspired by the Acpi4Asus project which
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* implements these features in the Linux kernel.
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*
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* <http://sourceforge.net/projects/acpi4asus/>
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*
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* Currently should support most features, but could use some more testing.
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* Particularly the display-switching stuff is a bit hairy. If you have an
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* Asus laptop which doesn't appear to be supported, or strange things happen
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* when using this driver, please report to <acpi@FreeBSD.org>.
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*
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*/
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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/sbuf.h>
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#include "acpi.h"
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#include <dev/acpica/acpivar.h>
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#include <dev/led/led.h>
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#define _COMPONENT ACPI_ASUS
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ACPI_MODULE_NAME("ASUS")
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struct acpi_asus_model {
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char *name;
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char *mled_set;
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char *tled_set;
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char *wled_set;
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char *brn_get;
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char *brn_set;
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char *brn_up;
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char *brn_dn;
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char *lcd_get;
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char *lcd_set;
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char *disp_get;
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char *disp_set;
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};
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struct acpi_asus_softc {
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device_t dev;
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ACPI_HANDLE handle;
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struct acpi_asus_model *model;
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struct sysctl_ctx_list sysctl_ctx;
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struct sysctl_oid *sysctl_tree;
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dev_t s_mled;
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dev_t s_tled;
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dev_t s_wled;
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int s_brn;
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int s_disp;
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int s_lcd;
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};
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/* Models we know about */
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static struct acpi_asus_model acpi_asus_models[] = {
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{
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.name = "L2D",
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.mled_set = "MLED",
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.wled_set = "WLED",
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.brn_up = "\\Q0E",
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.brn_dn = "\\Q0F",
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.lcd_get = "\\SGP0",
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.lcd_set = "\\Q10"
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},
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{
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.name = "L3C",
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.mled_set = "MLED",
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.wled_set = "WLED",
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.brn_get = "GPLV",
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.brn_set = "SPLV",
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.lcd_get = "\\GL32",
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.lcd_set = "\\_SB.PCI0.PX40.ECD0._Q10"
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},
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{
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.name = "L3D",
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.mled_set = "MLED",
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.wled_set = "WLED",
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.brn_get = "GPLV",
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.brn_set = "SPLV",
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.lcd_get = "\\BKLG",
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.lcd_set = "\\Q10"
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},
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{
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.name = "L3H",
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.mled_set = "MLED",
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.wled_set = "WLED",
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.brn_get = "GPLV",
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.brn_set = "SPLV",
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.lcd_get = "\\_SB.PCI0.PM.PBC",
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.lcd_set = "EHK",
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.disp_get = "\\_SB.INFB",
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.disp_set = "SDSP"
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},
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{
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.name = "L8L"
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/* Only has hotkeys, apparantly */
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},
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{
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.name = "M1A",
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.mled_set = "MLED",
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.brn_up = "\\_SB.PCI0.PX40.EC0.Q0E",
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.brn_dn = "\\_SB.PCI0.PX40.EC0.Q0F",
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.lcd_get = "\\PNOF",
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.lcd_set = "\\_SB.PCI0.PX40.EC0.Q10"
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},
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{
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.name = "M2E",
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.mled_set = "MLED",
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.wled_set = "WLED",
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.brn_get = "GPLV",
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.brn_set = "SPLV",
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.lcd_get = "\\GP06",
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.lcd_set = "\\Q10"
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},
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{
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.name = "P30",
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.wled_set = "WLED",
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.brn_up = "\\_SB.PCI0.LPCB.EC0._Q68",
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.brn_dn = "\\_SB.PCI0.LPCB.EC0._Q69",
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.lcd_get = "\\BKLT",
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.lcd_set = "\\_SB.PCI0.LPCB.EC0._Q0E"
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},
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{ .name = NULL }
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};
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/* Function prototypes */
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static int acpi_asus_probe(device_t dev);
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static int acpi_asus_attach(device_t dev);
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static int acpi_asus_detach(device_t dev);
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static void acpi_asus_mled(device_t dev, int state);
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static void acpi_asus_tled(device_t dev, int state);
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static void acpi_asus_wled(device_t dev, int state);
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static int acpi_asus_sysctl_brn(SYSCTL_HANDLER_ARGS);
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static int acpi_asus_sysctl_lcd(SYSCTL_HANDLER_ARGS);
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static int acpi_asus_sysctl_disp(SYSCTL_HANDLER_ARGS);
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static void acpi_asus_notify(ACPI_HANDLE h, UINT32 notify, void *context);
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static device_method_t acpi_asus_methods[] = {
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DEVMETHOD(device_probe, acpi_asus_probe),
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DEVMETHOD(device_attach, acpi_asus_attach),
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DEVMETHOD(device_detach, acpi_asus_detach),
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{ 0, 0 }
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};
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static driver_t acpi_asus_driver = {
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"acpi_asus",
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acpi_asus_methods,
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sizeof(struct acpi_asus_softc)
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};
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static devclass_t acpi_asus_devclass;
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DRIVER_MODULE(acpi_asus, acpi, acpi_asus_driver, acpi_asus_devclass, 0, 0);
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MODULE_DEPEND(acpi_asus, acpi, 1, 1, 1);
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static int
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acpi_asus_probe(device_t dev)
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{
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struct acpi_asus_model *model;
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struct acpi_asus_softc *sc;
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struct sbuf *sb;
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ACPI_BUFFER Buf;
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ACPI_OBJECT Arg, *Obj;
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ACPI_OBJECT_LIST Args;
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ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
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if (!acpi_disabled("asus") &&
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acpi_get_type(dev) == ACPI_TYPE_DEVICE &&
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acpi_MatchHid(dev, "ATK0100")) {
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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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sb = sbuf_new(NULL, NULL, 0, SBUF_AUTOEXTEND);
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if (sb == NULL)
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return (ENOMEM);
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Arg.Type = ACPI_TYPE_INTEGER;
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Arg.Integer.Value = 0;
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Args.Count = 1;
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Args.Pointer = &Arg;
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Buf.Pointer = NULL;
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Buf.Length = ACPI_ALLOCATE_BUFFER;
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AcpiEvaluateObject(sc->handle, "INIT", &Args, &Buf);
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Obj = Buf.Pointer;
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for (model = acpi_asus_models; model->name != NULL; model++)
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if (strcmp(Obj->String.Pointer, model->name) == 0) {
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sbuf_printf(sb, "Asus %s Laptop Extras",
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Obj->String.Pointer);
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sbuf_finish(sb);
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sc->model = model;
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device_set_desc(dev, sbuf_data(sb));
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sbuf_delete(sb);
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AcpiOsFree(Buf.Pointer);
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return (0);
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}
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sbuf_printf(sb, "Unsupported Asus laptop detected: %s\n",
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Obj->String.Pointer);
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sbuf_finish(sb);
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device_printf(dev, sbuf_data(sb));
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sbuf_delete(sb);
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AcpiOsFree(Buf.Pointer);
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}
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return (ENXIO);
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}
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static int
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acpi_asus_attach(device_t dev)
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{
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struct acpi_asus_softc *sc;
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struct acpi_softc *acpi_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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acpi_sc = acpi_device_get_parent_softc(dev);
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/* Build sysctl tree */
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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, "asus", CTLFLAG_RD, 0, "");
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/* Attach leds */
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if (sc->model->mled_set)
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sc->s_mled = led_create((led_t *)acpi_asus_mled, dev, "mled");
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if (sc->model->tled_set)
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sc->s_tled = led_create((led_t *)acpi_asus_tled, dev, "tled");
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if (sc->model->wled_set)
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sc->s_wled = led_create((led_t *)acpi_asus_wled, dev, "wled");
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/* Attach brightness for GPLV/SPLV models */
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if (sc->model->brn_get &&
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ACPI_SUCCESS(acpi_GetInteger(sc->handle,
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sc->model->brn_get, &sc->s_brn)))
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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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"lcd_brightness", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
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acpi_asus_sysctl_brn, "I", "brightness of the lcd panel");
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/* Attach brightness for other models */
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if (sc->model->brn_up &&
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ACPI_SUCCESS(AcpiEvaluateObject(sc->handle,
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sc->model->brn_up, NULL, NULL)) &&
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ACPI_SUCCESS(AcpiEvaluateObject(sc->handle,
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sc->model->brn_dn, NULL, NULL)))
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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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"lcd_brightness", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
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acpi_asus_sysctl_brn, "I", "brightness of the lcd panel");
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/* Attach display switching */
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if (sc->model->disp_get &&
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ACPI_SUCCESS(acpi_GetInteger(sc->handle,
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sc->model->disp_get, &sc->s_disp)))
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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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"video_output", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
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acpi_asus_sysctl_disp, "I", "display output state");
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/* Attach LCD state, easy for most models... */
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if (sc->model->lcd_get &&
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strncmp(sc->model->name, "L3H", 3) != 0 &&
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ACPI_SUCCESS(acpi_GetInteger(sc->handle,
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sc->model->lcd_get, &sc->s_lcd)))
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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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"lcd_backlight", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
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acpi_asus_sysctl_lcd, "I", "state of the lcd backlight");
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/* ...a nightmare for the L3H */
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else if (sc->model->lcd_get) {
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ACPI_BUFFER Buf;
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ACPI_OBJECT Arg[2], Obj;
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ACPI_OBJECT_LIST Args;
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Arg[0].Type = ACPI_TYPE_INTEGER;
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Arg[0].Integer.Value = 0x02;
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Arg[1].Type = ACPI_TYPE_INTEGER;
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Arg[1].Integer.Value = 0x03;
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Args.Count = 2;
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Args.Pointer = Arg;
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Buf.Length = sizeof(Obj);
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Buf.Pointer = &Obj;
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if (ACPI_SUCCESS(AcpiEvaluateObject(sc->handle,
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sc->model->lcd_get, &Args, &Buf)) &&
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Obj.Type == ACPI_TYPE_INTEGER) {
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sc->s_lcd = Obj.Integer.Value >> 8;
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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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"lcd_backlight", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
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acpi_asus_sysctl_lcd, "I",
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"state of the lcd backlight");
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}
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}
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/* Activate hotkeys */
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AcpiEvaluateObject(sc->handle, "BSTS", NULL, NULL);
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/* Handle notifies */
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AcpiInstallNotifyHandler(sc->handle,
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ACPI_SYSTEM_NOTIFY, acpi_asus_notify, dev);
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return (0);
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}
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static int
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acpi_asus_detach(device_t dev)
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{
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struct acpi_asus_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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/* Turn the lights off */
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if (sc->model->mled_set)
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led_destroy(sc->s_mled);
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if (sc->model->tled_set)
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led_destroy(sc->s_tled);
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if (sc->model->wled_set)
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led_destroy(sc->s_wled);
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/* Remove notify handler */
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AcpiRemoveNotifyHandler(sc->handle,
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ACPI_SYSTEM_NOTIFY, acpi_asus_notify);
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/* Free sysctl tree */
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sysctl_ctx_free(&sc->sysctl_ctx);
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return (0);
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}
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static void
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acpi_asus_mled(device_t dev, int state)
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{
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struct acpi_asus_softc *sc;
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ACPI_OBJECT Arg;
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ACPI_OBJECT_LIST Args;
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ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
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sc = device_get_softc(dev);
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Arg.Type = ACPI_TYPE_INTEGER;
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Arg.Integer.Value = !state; /* Inverted, yes! */
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Args.Count = 1;
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Args.Pointer = &Arg;
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AcpiEvaluateObject(sc->handle, sc->model->mled_set, &Args, NULL);
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}
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static void
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acpi_asus_tled(device_t dev, int state)
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{
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struct acpi_asus_softc *sc;
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ACPI_OBJECT Arg;
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ACPI_OBJECT_LIST Args;
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ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
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sc = device_get_softc(dev);
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Arg.Type = ACPI_TYPE_INTEGER;
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Arg.Integer.Value = state;
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Args.Count = 1;
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Args.Pointer = &Arg;
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AcpiEvaluateObject(sc->handle, sc->model->tled_set, &Args, NULL);
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}
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static void
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acpi_asus_wled(device_t dev, int state)
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{
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struct acpi_asus_softc *sc;
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ACPI_OBJECT Arg;
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ACPI_OBJECT_LIST Args;
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ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
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sc = device_get_softc(dev);
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Arg.Type = ACPI_TYPE_INTEGER;
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Arg.Integer.Value = state;
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Args.Count = 1;
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Args.Pointer = &Arg;
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AcpiEvaluateObject(sc->handle, sc->model->wled_set, &Args, NULL);
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}
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static int
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acpi_asus_sysctl_brn(SYSCTL_HANDLER_ARGS)
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{
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struct acpi_asus_softc *sc;
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ACPI_OBJECT Arg;
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ACPI_OBJECT_LIST Args;
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int brn, err;
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ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
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sc = (struct acpi_asus_softc *)oidp->oid_arg1;
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/* Sanity check */
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brn = sc->s_brn;
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err = sysctl_handle_int(oidp, &brn, 0, req);
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if ((err != 0) || (req->newptr == NULL))
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return (err);
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if ((brn < 0) || (brn > 15))
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return (EINVAL);
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/* Keep track and update */
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sc->s_brn = brn;
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Arg.Type = ACPI_TYPE_INTEGER;
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Arg.Integer.Value = brn;
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Args.Count = 1;
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Args.Pointer = &Arg;
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if (sc->model->brn_set)
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AcpiEvaluateObject(sc->handle,
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sc->model->brn_set, &Args, NULL);
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else {
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brn -= sc->s_brn;
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while (brn != 0) {
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AcpiEvaluateObject(sc->handle,(brn > 0) ?
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sc->model->brn_up : sc->model->brn_dn,
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NULL, NULL);
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(brn > 0) ? brn-- : brn++;
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}
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}
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|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
acpi_asus_sysctl_lcd(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct acpi_asus_softc *sc;
|
|
int lcd, err;
|
|
|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
sc = (struct acpi_asus_softc *)oidp->oid_arg1;
|
|
|
|
/* Sanity check */
|
|
lcd = sc->s_lcd;
|
|
err = sysctl_handle_int(oidp, &lcd, 0, req);
|
|
|
|
if ((err != 0) || (req->newptr == NULL))
|
|
return (err);
|
|
|
|
if ((lcd < 0) || (lcd > 1))
|
|
return (EINVAL);
|
|
|
|
/* Keep track and update */
|
|
sc->s_lcd = lcd;
|
|
|
|
/* Most models just need a lcd_set evaluated, the L3H is trickier */
|
|
if (strncmp(sc->model->name, "L3H", 3) != 0)
|
|
AcpiEvaluateObject(sc->handle,
|
|
sc->model->lcd_set, NULL, NULL);
|
|
else {
|
|
ACPI_OBJECT Arg;
|
|
ACPI_OBJECT_LIST Args;
|
|
|
|
Arg.Type = ACPI_TYPE_INTEGER;
|
|
Arg.Integer.Value = 0x07;
|
|
|
|
Args.Count = 1;
|
|
Args.Pointer = &Arg;
|
|
|
|
AcpiEvaluateObject(sc->handle,
|
|
sc->model->lcd_set, &Args, NULL);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
acpi_asus_sysctl_disp(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct acpi_asus_softc *sc;
|
|
ACPI_OBJECT Arg;
|
|
ACPI_OBJECT_LIST Args;
|
|
int disp, err;
|
|
|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
sc = (struct acpi_asus_softc *)oidp->oid_arg1;
|
|
|
|
/* Sanity check */
|
|
disp = sc->s_disp;
|
|
err = sysctl_handle_int(oidp, &disp, 0, req);
|
|
|
|
if ((err != 0) || (req->newptr == NULL))
|
|
return (err);
|
|
|
|
if ((disp < 0) || (disp > 7))
|
|
return (EINVAL);
|
|
|
|
/* Keep track and update */
|
|
sc->s_disp = disp;
|
|
|
|
Arg.Type = ACPI_TYPE_INTEGER;
|
|
Arg.Integer.Value = disp;
|
|
|
|
Args.Count = 1;
|
|
Args.Pointer = &Arg;
|
|
|
|
AcpiEvaluateObject(sc->handle,
|
|
sc->model->disp_set, &Args, NULL);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
acpi_asus_notify(ACPI_HANDLE h, UINT32 notify, void *context)
|
|
{
|
|
struct acpi_asus_softc *sc;
|
|
struct acpi_softc *acpi_sc;
|
|
|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
sc = device_get_softc((device_t)context);
|
|
acpi_sc = acpi_device_get_parent_softc(sc->dev);
|
|
|
|
if ((notify & ~0x10) <= 15) {
|
|
sc->s_brn = (notify & ~0x10);
|
|
ACPI_VPRINT(sc->dev, acpi_sc, "Brightness increased\n");
|
|
} else if ((notify & ~0x20) <= 15) {
|
|
sc->s_brn = (notify & ~0x20);
|
|
ACPI_VPRINT(sc->dev, acpi_sc, "Brightness decreased\n");
|
|
} else if (notify == 0x33) {
|
|
sc->s_lcd = 1;
|
|
ACPI_VPRINT(sc->dev, acpi_sc, "LCD turned on\n");
|
|
} else if (notify == 0x34) {
|
|
sc->s_lcd = 0;
|
|
ACPI_VPRINT(sc->dev, acpi_sc, "LCD turned off\n");
|
|
} else {
|
|
/* Notify devd(8) */
|
|
acpi_UserNotify("ASUS", h, notify);
|
|
}
|
|
}
|