J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2002-2007 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 | #define USE_ERROR |
| 27 | #define USE_TRACE |
| 28 | |
| 29 | #include "PLATFORM_API_SolarisOS_Utils.h" |
| 30 | |
| 31 | #define MAX_AUDIO_DEVICES 20 |
| 32 | |
| 33 | // not thread safe... |
| 34 | static AudioDevicePath globalADPaths[MAX_AUDIO_DEVICES]; |
| 35 | static int globalADCount = -1; |
| 36 | static int globalADCacheTime = -1; |
| 37 | /* how many seconds do we cache devices */ |
| 38 | #define AD_CACHE_TIME 30 |
| 39 | |
| 40 | // return seconds |
| 41 | long getTimeInSeconds() { |
| 42 | struct timeval tv; |
| 43 | gettimeofday(&tv, NULL); |
| 44 | return tv.tv_sec; |
| 45 | } |
| 46 | |
| 47 | |
| 48 | int getAudioDeviceCount() { |
| 49 | int count = MAX_AUDIO_DEVICES; |
| 50 | |
| 51 | getAudioDevices(globalADPaths, &count); |
| 52 | return count; |
| 53 | } |
| 54 | |
| 55 | /* returns TRUE if the path exists at all */ |
| 56 | int addAudioDevice(char* path, AudioDevicePath* adPath, int* count) { |
| 57 | int i; |
| 58 | int found = 0; |
| 59 | int fileExists = 0; |
| 60 | // not thread safe... |
| 61 | static struct stat statBuf; |
| 62 | |
| 63 | // get stats on the file |
| 64 | if (stat(path, &statBuf) == 0) { |
| 65 | // file exists. |
| 66 | fileExists = 1; |
| 67 | // If it is not yet in the adPath array, add it to the array |
| 68 | for (i = 0; i < *count; i++) { |
| 69 | if (adPath[i].st_ino == statBuf.st_ino |
| 70 | && adPath[i].st_dev == statBuf.st_dev) { |
| 71 | found = 1; |
| 72 | break; |
| 73 | } |
| 74 | } |
| 75 | if (!found) { |
| 76 | adPath[*count].st_ino = statBuf.st_ino; |
| 77 | adPath[*count].st_dev = statBuf.st_dev; |
| 78 | strncpy(adPath[*count].path, path, MAX_NAME_LENGTH); |
| 79 | adPath[*count].path[MAX_NAME_LENGTH] = 0; |
| 80 | (*count)++; |
| 81 | TRACE1("Added audio device %s\n", path); |
| 82 | } |
| 83 | } |
| 84 | return fileExists; |
| 85 | } |
| 86 | |
| 87 | |
| 88 | void getAudioDevices(AudioDevicePath* adPath, int* count) { |
| 89 | int maxCount = *count; |
| 90 | char* audiodev; |
| 91 | char devsound[15]; |
| 92 | int i; |
| 93 | long timeInSeconds = getTimeInSeconds(); |
| 94 | |
| 95 | if (globalADCount < 0 |
| 96 | || (getTimeInSeconds() - globalADCacheTime) > AD_CACHE_TIME |
| 97 | || (adPath != globalADPaths)) { |
| 98 | *count = 0; |
| 99 | // first device, if set, is AUDIODEV variable |
| 100 | audiodev = getenv("AUDIODEV"); |
| 101 | if (audiodev != NULL && audiodev[0] != 0) { |
| 102 | addAudioDevice(audiodev, adPath, count); |
| 103 | } |
| 104 | // then try /dev/audio |
| 105 | addAudioDevice("/dev/audio", adPath, count); |
| 106 | // then go through all of the /dev/sound/? devices |
| 107 | for (i = 0; i < 100; i++) { |
| 108 | sprintf(devsound, "/dev/sound/%d", i); |
| 109 | if (!addAudioDevice(devsound, adPath, count)) { |
| 110 | break; |
| 111 | } |
| 112 | } |
| 113 | if (adPath == globalADPaths) { |
| 114 | /* commit cache */ |
| 115 | globalADCount = *count; |
| 116 | /* set cache time */ |
| 117 | globalADCacheTime = timeInSeconds; |
| 118 | } |
| 119 | } else { |
| 120 | /* return cache */ |
| 121 | *count = globalADCount; |
| 122 | } |
| 123 | // that's it |
| 124 | } |
| 125 | |
| 126 | int getAudioDeviceDescriptionByIndex(int index, AudioDeviceDescription* adDesc, int getNames) { |
| 127 | int count = MAX_AUDIO_DEVICES; |
| 128 | int ret = 0; |
| 129 | |
| 130 | getAudioDevices(globalADPaths, &count); |
| 131 | if (index>=0 && index < count) { |
| 132 | ret = getAudioDeviceDescription(globalADPaths[index].path, adDesc, getNames); |
| 133 | } |
| 134 | return ret; |
| 135 | } |
| 136 | |
| 137 | int getAudioDeviceDescription(char* path, AudioDeviceDescription* adDesc, int getNames) { |
| 138 | int fd; |
| 139 | int mixerMode; |
| 140 | int len; |
| 141 | audio_info_t info; |
| 142 | audio_device_t deviceInfo; |
| 143 | |
| 144 | strncpy(adDesc->path, path, MAX_NAME_LENGTH); |
| 145 | adDesc->path[MAX_NAME_LENGTH] = 0; |
| 146 | strcpy(adDesc->pathctl, adDesc->path); |
| 147 | strcat(adDesc->pathctl, "ctl"); |
| 148 | strcpy(adDesc->name, adDesc->path); |
| 149 | adDesc->vendor[0] = 0; |
| 150 | adDesc->version[0] = 0; |
| 151 | adDesc->description[0] = 0; |
| 152 | adDesc->maxSimulLines = 1; |
| 153 | |
| 154 | // try to open the pseudo device and get more information |
| 155 | fd = open(adDesc->pathctl, O_WRONLY | O_NONBLOCK); |
| 156 | if (fd >= 0) { |
| 157 | close(fd); |
| 158 | if (getNames) { |
| 159 | fd = open(adDesc->pathctl, O_RDONLY); |
| 160 | if (fd >= 0) { |
| 161 | if (ioctl(fd, AUDIO_GETDEV, &deviceInfo) >= 0) { |
| 162 | strncpy(adDesc->vendor, deviceInfo.name, MAX_AUDIO_DEV_LEN); |
| 163 | adDesc->vendor[MAX_AUDIO_DEV_LEN] = 0; |
| 164 | strncpy(adDesc->version, deviceInfo.version, MAX_AUDIO_DEV_LEN); |
| 165 | adDesc->version[MAX_AUDIO_DEV_LEN] = 0; |
| 166 | /* add config string to the dev name |
| 167 | * creates a string like "/dev/audio (onboard1)" |
| 168 | */ |
| 169 | len = strlen(adDesc->name) + 1; |
| 170 | if (MAX_NAME_LENGTH - len > 3) { |
| 171 | strcat(adDesc->name, " ("); |
| 172 | strncat(adDesc->name, deviceInfo.config, MAX_NAME_LENGTH - len); |
| 173 | strcat(adDesc->name, ")"); |
| 174 | } |
| 175 | adDesc->name[MAX_NAME_LENGTH-1] = 0; |
| 176 | } |
| 177 | if (ioctl(fd, AUDIO_MIXERCTL_GET_MODE, &mixerMode) >= 0) { |
| 178 | if (mixerMode == AM_MIXER_MODE) { |
| 179 | TRACE1(" getAudioDeviceDescription: %s is in mixer mode\n", adDesc->path); |
| 180 | adDesc->maxSimulLines = -1; |
| 181 | } |
| 182 | } else { |
| 183 | ERROR1("ioctl AUDIO_MIXERCTL_GET_MODE failed on %s!\n", adDesc->path); |
| 184 | } |
| 185 | close(fd); |
| 186 | } else { |
| 187 | ERROR1("could not open %s!\n", adDesc->pathctl); |
| 188 | } |
| 189 | } |
| 190 | return 1; |
| 191 | } |
| 192 | return 0; |
| 193 | } |