/*

 * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

#include <alsa/asoundlib.h>

#include "Utilities.h"

#ifndef PLATFORM_API_LINUXOS_ALSA_COMMONUTILS_H_INCLUDED

#define PLATFORM_API_LINUXOS_ALSA_COMMONUTILS_H_INCLUDED

#define ALSA_VERSION_PROC_FILE "/proc/asound/version"

#define ALSA_HARDWARE "hw"

#define ALSA_HARDWARE_CARD ALSA_HARDWARE":%d"

#define ALSA_HARDWARE_DEVICE ALSA_HARDWARE_CARD",%d"

#define ALSA_HARDWARE_SUBDEVICE ALSA_HARDWARE_DEVICE",%d"

#define ALSA_PLUGHARDWARE "plughw"

#define ALSA_DEFAULT_DEVICE_NAME "default"

#define ALSA_DEFAULT_DEVICE_ID (0)

#define ALSA_PCM     (0)

#define ALSA_RAWMIDI (1)

// for use in info objects

#define ALSA_VENDOR "ALSA (http://www.alsa-project.org)"

// Environment variable for inclusion of subdevices in device listing.

// If this variable is unset or "no", then subdevices are ignored, and

// it's ALSA's choice which one to use (enables hardware mixing)

#define ENV_ENUMERATE_PCM_SUBDEVICES "ALSA_ENUMERATE_PCM_SUBDEVICES"

// if defined, subdevices are listed.

//#undef ALSA_MIDI_ENUMERATE_SUBDEVICES

#define ALSA_MIDI_ENUMERATE_SUBDEVICES

// must be called before any ALSA calls

void initAlsaSupport();

/* if true (non-zero), ALSA sub devices should be listed as separate devices

 */

int needEnumerateSubdevices(int isMidi);

/*

 * deviceID contains packed card, device and subdevice numbers

 * each number takes 10 bits

 * "default" device has id == ALSA_DEFAULT_DEVICE_ID

 */

UINT32 encodeDeviceID(int card, int device, int subdevice);

void decodeDeviceID(UINT32 deviceID, int* card, int* device, int* subdevice,

                    int isMidi);

void getDeviceStringFromDeviceID(char* buffer, UINT32 deviceID,

                                 int usePlugHw, int isMidi);

void getALSAVersion(char* buffer, int len);

#endif // PLATFORM_API_LINUXOS_ALSA_COMMONUTILS_H_INCLUDED