| J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #include <alsa/asoundlib.h> |
| 27 | #include "Utilities.h" |
| 28 | |
| 29 | #ifndef PLATFORM_API_LINUXOS_ALSA_COMMONUTILS_H_INCLUDED |
| 30 | #define PLATFORM_API_LINUXOS_ALSA_COMMONUTILS_H_INCLUDED |
| 31 | |
| 32 | #define ALSA_VERSION_PROC_FILE "/proc/asound/version" |
| 33 | #define ALSA_HARDWARE "hw" |
| 34 | #define ALSA_HARDWARE_CARD ALSA_HARDWARE":%d" |
| 35 | #define ALSA_HARDWARE_DEVICE ALSA_HARDWARE_CARD",%d" |
| 36 | #define ALSA_HARDWARE_SUBDEVICE ALSA_HARDWARE_DEVICE",%d" |
| 37 | |
| 38 | #define ALSA_PLUGHARDWARE "plughw" |
| 39 | #define ALSA_DEFAULT_DEVICE_NAME "default" |
| 40 | |
| 41 | #define ALSA_DEFAULT_DEVICE_ID (0) |
| 42 | |
| 43 | #define ALSA_PCM (0) |
| 44 | #define ALSA_RAWMIDI (1) |
| 45 | |
| 46 | // for use in info objects |
| 47 | #define ALSA_VENDOR "ALSA (http://www.alsa-project.org)" |
| 48 | |
| 49 | // Environment variable for inclusion of subdevices in device listing. |
| 50 | // If this variable is unset or "no", then subdevices are ignored, and |
| 51 | // it's ALSA's choice which one to use (enables hardware mixing) |
| 52 | #define ENV_ENUMERATE_PCM_SUBDEVICES "ALSA_ENUMERATE_PCM_SUBDEVICES" |
| 53 | |
| 54 | // if defined, subdevices are listed. |
| 55 | //#undef ALSA_MIDI_ENUMERATE_SUBDEVICES |
| 56 | #define ALSA_MIDI_ENUMERATE_SUBDEVICES |
| 57 | |
| 58 | // must be called before any ALSA calls |
| 59 | void initAlsaSupport(); |
| 60 | |
| 61 | /* if true (non-zero), ALSA sub devices should be listed as separate devices |
| 62 | */ |
| 63 | int needEnumerateSubdevices(int isMidi); |
| 64 | |
| 65 | |
| 66 | /* |
| 67 | * deviceID contains packed card, device and subdevice numbers |
| 68 | * each number takes 10 bits |
| 69 | * "default" device has id == ALSA_DEFAULT_DEVICE_ID |
| 70 | */ |
| 71 | UINT32 encodeDeviceID(int card, int device, int subdevice); |
| 72 | |
| 73 | void decodeDeviceID(UINT32 deviceID, int* card, int* device, int* subdevice, |
| 74 | int isMidi); |
| 75 | |
| 76 | void getDeviceStringFromDeviceID(char* buffer, UINT32 deviceID, |
| 77 | int usePlugHw, int isMidi); |
| 78 | |
| 79 | void getALSAVersion(char* buffer, int len); |
| 80 | |
| 81 | |
| 82 | #endif // PLATFORM_API_LINUXOS_ALSA_COMMONUTILS_H_INCLUDED |