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/* $OpenBSD: acpisurface.c,v 1.1 2018/06/30 18:15:12 mlarkin Exp $ */
/*
* Copyright (c) 2018 Mike Larkin <mlarkin@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#include <dev/acpi/acpidev.h>
#include <dev/acpi/amltypes.h>
#include <dev/acpi/dsdt.h>
#include "audio.h"
#include "wskbd.h"
/* #define ACPISURFACE_DEBUG */
#ifdef ACPISURFACE_DEBUG
#define DPRINTF(x...) do { printf(x); } while(0)
#else
#define DPRINTF(x...)
#endif /* ACPISURFACE_DEBUG */
#define SURFACE_ACCESSORY_REMOVED 0xC8
#define SURFACE_WINDOWS_KEY_PRESSED 0xC4
#define SURFACE_WINDOWS_KEY_RELEASED 0xC5
#define SURFACE_VOLUME_UP_PRESSED 0xC0
#define SURFACE_VOLUME_UP_RELEASED 0xC1
#define SURFACE_VOLUME_DOWN_PRESSED 0xC2
#define SURFACE_VOLUME_DOWN_RELEASED 0xC3
#define SURFACE_POWER_BUTTON_PRESSED 0xC6
#define SURFACE_POWER_BUTTON_RELEASED 0xC7
struct acpisurface_softc {
struct device sc_dev;
struct acpiec_softc *sc_ec;
struct acpi_softc *sc_acpi;
struct aml_node *sc_devnode;
};
int surface_match(struct device *, void *, void *);
void surface_attach(struct device *, struct device *, void *);
int surface_hotkey(struct aml_node *, int, void *);
#if NAUDIO > 0 && NWSKBD > 0
extern int wskbd_set_mixervolume(long, long);
#endif
struct cfattach acpisurface_ca = {
sizeof(struct acpisurface_softc), surface_match, surface_attach,
NULL, NULL
};
struct cfdriver acpisurface_cd = {
NULL, "acpisurface", DV_DULL
};
const char *acpisurface_hids[] = {
"MSHW0040",
NULL
};
int
surface_match(struct device *parent, void *match, void *aux)
{
struct acpi_attach_args *aa = aux;
struct cfdata *cf = match;
if (!acpi_matchhids(aa, acpisurface_hids, cf->cf_driver->cd_name))
return (0);
return (1);
}
void
surface_attach(struct device *parent, struct device *self, void *aux)
{
struct acpisurface_softc *sc = (struct acpisurface_softc *)self;
struct acpi_attach_args *aa = aux;
sc->sc_acpi = (struct acpi_softc *)parent;
sc->sc_devnode = aa->aaa_node;
printf("\n");
/* Run surface_hotkey on button presses */
aml_register_notify(sc->sc_devnode, aa->aaa_dev,
surface_hotkey, sc, ACPIDEV_NOPOLL);
}
int
surface_hotkey(struct aml_node *node, int notify_type, void *arg)
{
struct acpisurface_softc *sc = arg;
switch (notify_type) {
case SURFACE_ACCESSORY_REMOVED:
DPRINTF("%s: accessory removed\n", __func__);
break;
case SURFACE_VOLUME_UP_PRESSED:
DPRINTF("%s: volume up pressed\n", __func__);
#if NAUDIO > 0 && NWSKBD > 0
wskbd_set_mixervolume(1, 10);
#endif
break;
case SURFACE_VOLUME_UP_RELEASED:
DPRINTF("%s: volume up released\n", __func__);
break;
case SURFACE_VOLUME_DOWN_PRESSED:
DPRINTF("%s: volume down pressed\n", __func__);
#if NAUDIO > 0 && NWSKBD > 0
wskbd_set_mixervolume(-1, 10);
#endif
break;
case SURFACE_VOLUME_DOWN_RELEASED:
DPRINTF("%s: volume down released\n", __func__);
break;
case SURFACE_POWER_BUTTON_PRESSED:
DPRINTF("%s: power button pressed\n", __func__);
break;
case SURFACE_POWER_BUTTON_RELEASED:
DPRINTF("%s: power button released\n", __func__);
acpi_addtask(sc->sc_acpi, acpi_powerdown_task,
sc->sc_acpi, 0);
break;
case SURFACE_WINDOWS_KEY_PRESSED:
DPRINTF("%s: windows key pressed\n", __func__);
break;
case SURFACE_WINDOWS_KEY_RELEASED:
DPRINTF("%s: windows key released\n", __func__);
break;
default:
DPRINTF("%s: unknown notification 0x%x\n", __func__,
notify_type);
}
return (0);
}
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