NetBSD-5.0.2/sys/dev/acpi/asus_acpi.c
/* $NetBSD: asus_acpi.c,v 1.6 2008/09/21 21:15:28 jmcneill Exp $ */
/*-
* Copyright (c) 2007, 2008 Jared D. McNeill <jmcneill@invisible.ca>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: asus_acpi.c,v 1.6 2008/09/21 21:15:28 jmcneill Exp $");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/malloc.h>
#include <sys/buf.h>
#include <sys/callout.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/pmf.h>
#include <dev/acpi/acpivar.h>
typedef struct asus_softc {
device_t sc_dev;
struct acpi_devnode *sc_node;
#define ASUS_PSW_DISPLAY_CYCLE 0
#define ASUS_PSW_LAST 1
struct sysmon_pswitch sc_smpsw[ASUS_PSW_LAST];
bool sc_smpsw_valid;
ACPI_INTEGER sc_brightness;
} asus_softc_t;
#define ASUS_NOTIFY_WirelessSwitch 0x10
#define ASUS_NOTIFY_BrightnessLow 0x20
#define ASUS_NOTIFY_BrightnessHigh 0x2f
#define ASUS_NOTIFY_DisplayCycle 0x30
#define ASUS_NOTIFY_WindowSwitch 0x12 /* XXXJDM ?? */
#define ASUS_NOTIFY_VolumeMute 0x13
#define ASUS_NOTIFY_VolumeDown 0x14
#define ASUS_NOTIFY_VolumeUp 0x15
#define ASUS_METHOD_SDSP "SDSP"
#define ASUS_SDSP_LCD 0x01
#define ASUS_SDSP_CRT 0x02
#define ASUS_SDSP_TV 0x04
#define ASUS_SDSP_DVI 0x08
#define ASUS_SDSP_ALL \
(ASUS_SDSP_LCD | ASUS_SDSP_CRT | ASUS_SDSP_TV | ASUS_SDSP_DVI)
#define ASUS_METHOD_PBLG "PBLG"
#define ASUS_METHOD_PBLS "PBLS"
static int asus_match(device_t, cfdata_t, void *);
static void asus_attach(device_t, device_t, void *);
static void asus_notify_handler(ACPI_HANDLE, UINT32, void *);
static void asus_init(device_t);
static bool asus_suspend(device_t PMF_FN_PROTO);
static bool asus_resume(device_t PMF_FN_PROTO);
CFATTACH_DECL_NEW(asus, sizeof(asus_softc_t),
asus_match, asus_attach, NULL, NULL);
static const char * const asus_ids[] = {
"ASUS010",
NULL
};
static int
asus_match(device_t parent, cfdata_t match, void *opaque)
{
struct acpi_attach_args *aa = opaque;
if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
return 0;
return acpi_match_hid(aa->aa_node->ad_devinfo, asus_ids);
}
static void
asus_attach(device_t parent, device_t self, void *opaque)
{
asus_softc_t *sc = device_private(self);
struct acpi_attach_args *aa = opaque;
ACPI_STATUS rv;
sc->sc_node = aa->aa_node;
sc->sc_dev = self;
aprint_naive("\n");
aprint_normal("\n");
asus_init(self);
sc->sc_smpsw_valid = true;
sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE].smpsw_name =
PSWITCH_HK_DISPLAY_CYCLE;
sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE].smpsw_type =
PSWITCH_TYPE_HOTKEY;
if (sysmon_pswitch_register(&sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE])) {
aprint_error_dev(self, "couldn't register with sysmon\n");
sc->sc_smpsw_valid = false;
}
rv = AcpiInstallNotifyHandler(sc->sc_node->ad_handle, ACPI_ALL_NOTIFY,
asus_notify_handler, sc);
if (ACPI_FAILURE(rv))
aprint_error_dev(self, "couldn't install notify handler: %s\n",
AcpiFormatException(rv));
if (!pmf_device_register(self, asus_suspend, asus_resume))
aprint_error_dev(self, "couldn't establish power handler\n");
}
static void
asus_notify_handler(ACPI_HANDLE hdl, UINT32 notify, void *opaque)
{
asus_softc_t *sc = opaque;
if (notify >= ASUS_NOTIFY_BrightnessLow &&
notify <= ASUS_NOTIFY_BrightnessHigh) {
aprint_debug_dev(sc->sc_dev, "brightness %d percent\n",
(notify & 0xf) * 100 / 0xf);
return;
}
switch (notify) {
case ASUS_NOTIFY_WirelessSwitch: /* handled by AML */
case ASUS_NOTIFY_WindowSwitch: /* XXXJDM what is this? */
break;
case ASUS_NOTIFY_DisplayCycle:
if (sc->sc_smpsw_valid == false)
break;
sysmon_pswitch_event(&sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE],
PSWITCH_EVENT_PRESSED);
break;
case ASUS_NOTIFY_VolumeMute:
pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_TOGGLE);
break;
case ASUS_NOTIFY_VolumeDown:
pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN);
break;
case ASUS_NOTIFY_VolumeUp:
pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP);
break;
default:
aprint_debug_dev(sc->sc_dev, "unknown event 0x%02x\n", notify);
break;
}
}
static void
asus_init(device_t self)
{
asus_softc_t *sc = device_private(self);
ACPI_STATUS rv;
ACPI_OBJECT param;
ACPI_OBJECT_LIST params;
ACPI_BUFFER ret;
ret.Pointer = NULL;
ret.Length = ACPI_ALLOCATE_BUFFER;
param.Type = ACPI_TYPE_INTEGER;
param.Integer.Value = 0x40; /* disable ASL display switching */
params.Pointer = ¶m;
params.Count = 1;
rv = AcpiEvaluateObject(sc->sc_node->ad_handle, "INIT",
¶ms, &ret);
if (ACPI_FAILURE(rv))
aprint_error_dev(self, "couldn't evaluate INIT: %s\n",
AcpiFormatException(rv));
if (ret.Pointer)
AcpiOsFree(ret.Pointer);
}
static bool
asus_suspend(device_t self PMF_FN_ARGS)
{
asus_softc_t *sc = device_private(self);
ACPI_STATUS rv;
/* capture display brightness when we're sleeping */
rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLG,
&sc->sc_brightness);
if (ACPI_FAILURE(rv))
aprint_error_dev(sc->sc_dev, "couldn't evaluate PBLG: %s\n",
AcpiFormatException(rv));
return true;
}
static bool
asus_resume(device_t self PMF_FN_ARGS)
{
asus_softc_t *sc = device_private(self);
ACPI_STATUS rv;
ACPI_OBJECT param;
ACPI_OBJECT_LIST params;
ACPI_BUFFER ret;
asus_init(self);
/* restore previous display brightness */
ret.Pointer = NULL;
ret.Length = ACPI_ALLOCATE_BUFFER;
param.Type = ACPI_TYPE_INTEGER;
param.Integer.Value = sc->sc_brightness;
params.Pointer = ¶m;
params.Count = 1;
rv = AcpiEvaluateObject(sc->sc_node->ad_handle, ASUS_METHOD_PBLS,
¶ms, &ret);
if (ACPI_FAILURE(rv))
aprint_error_dev(self, "couldn't evaluate PBLS: %s\n",
AcpiFormatException(rv));
return true;
}