Mercurial > sdl-ios-xcode
annotate src/audio/paudio/SDL_paudio.c @ 3626:596468a8459e
Merged r5016:5017 from branches/SDL-1.2: PS2 DMA mapping fix.
I assume this video target is slated for removal in 1.3, but I merged this,
just in case.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sun, 10 Jan 2010 06:32:41 +0000 |
| parents | 1e431c2631ee |
| children | f7b03b6838cb |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 SDL - Simple DirectMedia Layer |
| 2859 | 3 Copyright (C) 1997-2009 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Carsten Griwodz | |
| 20 griff@kom.tu-darmstadt.de | |
| 21 | |
| 22 based on linux/SDL_dspaudio.c by Sam Lantinga | |
| 23 */ | |
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24 #include "SDL_config.h" |
| 0 | 25 |
| 26 /* Allow access to a raw mixing buffer */ | |
| 27 | |
| 28 #include <errno.h> | |
| 29 #include <unistd.h> | |
| 30 #include <fcntl.h> | |
| 31 #include <sys/time.h> | |
| 32 #include <sys/ioctl.h> | |
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33 #include <sys/types.h> |
| 0 | 34 #include <sys/stat.h> |
| 35 | |
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36 #include "SDL_timer.h" |
| 0 | 37 #include "SDL_audio.h" |
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38 #include "SDL_stdinc.h" |
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39 #include "../SDL_audiomem.h" |
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40 #include "../SDL_audio_c.h" |
| 0 | 41 #include "SDL_paudio.h" |
| 42 | |
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43 #define DEBUG_AUDIO 0 |
| 0 | 44 |
| 45 /* A conflict within AIX 4.3.3 <sys/> headers and probably others as well. | |
| 46 * I guess nobody ever uses audio... Shame over AIX header files. */ | |
| 47 #include <sys/machine.h> | |
| 48 #undef BIG_ENDIAN | |
| 49 #include <sys/audio.h> | |
| 50 | |
| 51 /* The tag name used by paud audio */ | |
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52 #define PAUDIO_DRIVER_NAME "paud" |
| 0 | 53 |
| 54 /* Open the audio device for playback, and don't block if busy */ | |
| 55 /* #define OPEN_FLAGS (O_WRONLY|O_NONBLOCK) */ | |
| 56 #define OPEN_FLAGS O_WRONLY | |
| 57 | |
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58 /* Get the name of the audio device we use for output */ |
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59 |
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60 #ifndef _PATH_DEV_DSP |
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61 #define _PATH_DEV_DSP "/dev/%caud%c/%c" |
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62 #endif |
| 0 | 63 |
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64 static char devsettings[][3] = { |
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65 {'p', '0', '1'}, {'p', '0', '2'}, {'p', '0', '3'}, {'p', '0', '4'}, |
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66 {'p', '1', '1'}, {'p', '1', '2'}, {'p', '1', '3'}, {'p', '1', '4'}, |
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67 {'p', '2', '1'}, {'p', '2', '2'}, {'p', '2', '3'}, {'p', '2', '4'}, |
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68 {'p', '3', '1'}, {'p', '3', '2'}, {'p', '3', '3'}, {'p', '3', '4'}, |
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69 {'b', '0', '1'}, {'b', '0', '2'}, {'b', '0', '3'}, {'b', '0', '4'}, |
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70 {'b', '1', '1'}, {'b', '1', '2'}, {'b', '1', '3'}, {'b', '1', '4'}, |
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71 {'b', '2', '1'}, {'b', '2', '2'}, {'b', '2', '3'}, {'b', '2', '4'}, |
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72 {'b', '3', '1'}, {'b', '3', '2'}, {'b', '3', '3'}, {'b', '3', '4'}, |
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73 {'\0', '\0', '\0'} |
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74 }; |
| 0 | 75 |
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76 static int |
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77 OpenUserDefinedDevice(char *path, int maxlen, int flags) |
| 0 | 78 { |
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79 const char *audiodev; |
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80 int fd; |
| 0 | 81 |
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82 /* Figure out what our audio device is */ |
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83 if ((audiodev = SDL_getenv("SDL_PATH_DSP")) == NULL) { |
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84 audiodev = SDL_getenv("AUDIODEV"); |
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85 } |
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86 if (audiodev == NULL) { |
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87 return -1; |
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88 } |
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89 fd = open(audiodev, flags, 0); |
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90 if (path != NULL) { |
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91 SDL_strlcpy(path, audiodev, maxlen); |
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92 path[maxlen - 1] = '\0'; |
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93 } |
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94 return fd; |
| 0 | 95 } |
| 96 | |
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97 static int |
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98 OpenAudioPath(char *path, int maxlen, int flags, int classic) |
| 0 | 99 { |
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100 struct stat sb; |
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101 int cycle = 0; |
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102 int fd = OpenUserDefinedDevice(path, maxlen, flags); |
| 0 | 103 |
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104 if (fd != -1) { |
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105 return fd; |
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106 } |
| 0 | 107 |
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108 /* !!! FIXME: do we really need a table here? */ |
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109 while (devsettings[cycle][0] != '\0') { |
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110 char audiopath[1024]; |
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111 SDL_snprintf(audiopath, SDL_arraysize(audiopath), |
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112 _PATH_DEV_DSP, |
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113 devsettings[cycle][0], |
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114 devsettings[cycle][1], devsettings[cycle][2]); |
| 0 | 115 |
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116 if (stat(audiopath, &sb) == 0) { |
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117 fd = open(audiopath, flags, 0); |
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118 if (fd > 0) { |
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119 if (path != NULL) { |
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120 SDL_strlcpy(path, audiopath, maxlen); |
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121 } |
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122 return fd; |
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123 } |
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124 } |
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125 } |
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126 return -1; |
| 0 | 127 } |
| 128 | |
| 129 /* This function waits until it is possible to write a full sound buffer */ | |
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130 static void |
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131 PAUDIO_WaitDevice(_THIS) |
| 0 | 132 { |
| 133 fd_set fdset; | |
| 134 | |
| 135 /* See if we need to use timed audio synchronization */ | |
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136 if (this->hidden->frame_ticks) { |
| 0 | 137 /* Use timer for general audio synchronization */ |
| 138 Sint32 ticks; | |
| 139 | |
| 2060 | 140 ticks = |
| 141 ((Sint32) (this->hidden->next_frame - SDL_GetTicks())) - | |
| 142 FUDGE_TICKS; | |
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143 if (ticks > 0) { |
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144 SDL_Delay(ticks); |
| 0 | 145 } |
| 146 } else { | |
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147 audio_buffer paud_bufinfo; |
| 0 | 148 |
| 149 /* Use select() for audio synchronization */ | |
| 150 struct timeval timeout; | |
| 151 FD_ZERO(&fdset); | |
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152 FD_SET(this->hidden->audio_fd, &fdset); |
| 0 | 153 |
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154 if (ioctl(this->hidden->audio_fd, AUDIO_BUFFER, &paud_bufinfo) < 0) { |
| 0 | 155 #ifdef DEBUG_AUDIO |
| 156 fprintf(stderr, "Couldn't get audio buffer information\n"); | |
| 157 #endif | |
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158 timeout.tv_sec = 10; |
| 0 | 159 timeout.tv_usec = 0; |
| 160 } else { | |
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161 long ms_in_buf = paud_bufinfo.write_buf_time; |
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162 timeout.tv_sec = ms_in_buf / 1000; |
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163 ms_in_buf = ms_in_buf - timeout.tv_sec * 1000; |
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164 timeout.tv_usec = ms_in_buf * 1000; |
| 0 | 165 #ifdef DEBUG_AUDIO |
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166 fprintf(stderr, |
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167 "Waiting for write_buf_time=%ld,%ld\n", |
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168 timeout.tv_sec, timeout.tv_usec); |
| 0 | 169 #endif |
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170 } |
| 0 | 171 |
| 172 #ifdef DEBUG_AUDIO | |
| 173 fprintf(stderr, "Waiting for audio to get ready\n"); | |
| 174 #endif | |
| 2060 | 175 if (select(this->hidden->audio_fd + 1, NULL, &fdset, NULL, &timeout) |
| 176 <= 0) { | |
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177 const char *message = |
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178 "Audio timeout - buggy audio driver? (disabled)"; |
| 0 | 179 /* |
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180 * In general we should never print to the screen, |
| 0 | 181 * but in this case we have no other way of letting |
| 182 * the user know what happened. | |
| 183 */ | |
| 184 fprintf(stderr, "SDL: %s - %s\n", strerror(errno), message); | |
| 185 this->enabled = 0; | |
| 186 /* Don't try to close - may hang */ | |
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187 this->hidden->audio_fd = -1; |
| 0 | 188 #ifdef DEBUG_AUDIO |
| 189 fprintf(stderr, "Done disabling audio\n"); | |
| 190 #endif | |
| 191 } | |
| 192 #ifdef DEBUG_AUDIO | |
| 193 fprintf(stderr, "Ready!\n"); | |
| 194 #endif | |
| 195 } | |
| 196 } | |
| 197 | |
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198 static void |
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199 PAUDIO_PlayDevice(_THIS) |
| 0 | 200 { |
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201 int written = 0; |
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202 const Uint8 *mixbuf = this->hidden->mixbuf; |
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203 const size_t mixlen = this->hidden->mixlen; |
| 0 | 204 |
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205 /* Write the audio data, checking for EAGAIN on broken audio drivers */ |
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206 do { |
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207 written = write(this->hidden->audio_fd, mixbuf, mixlen); |
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208 if ((written < 0) && ((errno == 0) || (errno == EAGAIN))) { |
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209 SDL_Delay(1); /* Let a little CPU time go by */ |
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210 } |
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211 } while ((written < 0) && |
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212 ((errno == 0) || (errno == EAGAIN) || (errno == EINTR))); |
| 0 | 213 |
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214 /* If timer synchronization is enabled, set the next write frame */ |
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215 if (this->hidden->frame_ticks) { |
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216 this->hidden->next_frame += this->hidden->frame_ticks; |
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217 } |
| 0 | 218 |
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219 /* If we couldn't write, assume fatal error for now */ |
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220 if (written < 0) { |
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221 this->enabled = 0; |
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222 } |
| 0 | 223 #ifdef DEBUG_AUDIO |
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224 fprintf(stderr, "Wrote %d bytes of audio data\n", written); |
| 0 | 225 #endif |
| 226 } | |
| 227 | |
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228 static Uint8 * |
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229 PAUDIO_GetDeviceBuf(_THIS) |
| 0 | 230 { |
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231 return this->hidden->mixbuf; |
| 0 | 232 } |
| 233 | |
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234 static void |
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235 PAUDIO_CloseDevice(_THIS) |
| 0 | 236 { |
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237 if (this->hidden != NULL) { |
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238 if (this->hidden->mixbuf != NULL) { |
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239 SDL_FreeAudioMem(this->hidden->mixbuf); |
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240 this->hidden->mixbuf = NULL; |
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241 } |
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242 if (this->hidden->audio_fd >= 0) { |
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243 close(this->hidden->audio_fd); |
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244 this->hidden->audio_fd = -1; |
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245 } |
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246 SDL_free(this->hidden); |
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247 this->hidden = NULL; |
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248 } |
| 0 | 249 } |
| 250 | |
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251 static int |
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252 PAUDIO_OpenDevice(_THIS, const char *devname, int iscapture) |
| 0 | 253 { |
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254 const char *workaround = SDL_getenv("SDL_DSP_NOSELECT"); |
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255 char audiodev[1024]; |
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256 const char *err = NULL; |
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257 int format; |
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258 int bytes_per_sample; |
|
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259 SDL_AudioFormat test_format; |
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260 audio_init paud_init; |
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261 audio_buffer paud_bufinfo; |
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262 audio_status paud_status; |
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263 audio_control paud_control; |
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264 audio_change paud_change; |
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265 int fd = -1; |
| 0 | 266 |
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267 /* Initialize all variables that we clean on shutdown */ |
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268 this->hidden = (struct SDL_PrivateAudioData *) |
| 2060 | 269 SDL_malloc((sizeof *this->hidden)); |
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270 if (this->hidden == NULL) { |
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271 SDL_OutOfMemory(); |
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272 return 0; |
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273 } |
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274 SDL_memset(this->hidden, 0, (sizeof *this->hidden)); |
| 0 | 275 |
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276 /* Open the audio device */ |
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277 fd = OpenAudioPath(audiodev, sizeof(audiodev), OPEN_FLAGS, 0); |
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278 this->hidden->audio_fd = fd; |
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279 if (fd < 0) { |
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280 PAUDIO_CloseDevice(this); |
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281 SDL_SetError("Couldn't open %s: %s", audiodev, strerror(errno)); |
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282 return 0; |
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283 } |
| 0 | 284 |
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285 /* |
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286 * We can't set the buffer size - just ask the device for the maximum |
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287 * that we can have. |
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288 */ |
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289 if (ioctl(fd, AUDIO_BUFFER, &paud_bufinfo) < 0) { |
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290 PAUDIO_CloseDevice(this); |
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291 SDL_SetError("Couldn't get audio buffer information"); |
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292 return 0; |
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293 } |
| 0 | 294 |
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295 if (this->spec.channels > 1) |
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296 this->spec.channels = 2; |
|
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297 else |
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298 this->spec.channels = 1; |
| 0 | 299 |
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300 /* |
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301 * Fields in the audio_init structure: |
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302 * |
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303 * Ignored by us: |
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304 * |
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305 * paud.loadpath[LOAD_PATH]; * DSP code to load, MWave chip only? |
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306 * paud.slot_number; * slot number of the adapter |
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307 * paud.device_id; * adapter identification number |
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308 * |
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309 * Input: |
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310 * |
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311 * paud.srate; * the sampling rate in Hz |
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312 * paud.bits_per_sample; * 8, 16, 32, ... |
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313 * paud.bsize; * block size for this rate |
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314 * paud.mode; * ADPCM, PCM, MU_LAW, A_LAW, SOURCE_MIX |
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315 * paud.channels; * 1=mono, 2=stereo |
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316 * paud.flags; * FIXED - fixed length data |
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317 * * LEFT_ALIGNED, RIGHT_ALIGNED (var len only) |
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318 * * TWOS_COMPLEMENT - 2's complement data |
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319 * * SIGNED - signed? comment seems wrong in sys/audio.h |
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320 * * BIG_ENDIAN |
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321 * paud.operation; * PLAY, RECORD |
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322 * |
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323 * Output: |
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324 * |
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325 * paud.flags; * PITCH - pitch is supported |
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326 * * INPUT - input is supported |
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327 * * OUTPUT - output is supported |
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328 * * MONITOR - monitor is supported |
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329 * * VOLUME - volume is supported |
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330 * * VOLUME_DELAY - volume delay is supported |
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331 * * BALANCE - balance is supported |
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332 * * BALANCE_DELAY - balance delay is supported |
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333 * * TREBLE - treble control is supported |
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334 * * BASS - bass control is supported |
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335 * * BESTFIT_PROVIDED - best fit returned |
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336 * * LOAD_CODE - DSP load needed |
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337 * paud.rc; * NO_PLAY - DSP code can't do play requests |
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338 * * NO_RECORD - DSP code can't do record requests |
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339 * * INVALID_REQUEST - request was invalid |
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340 * * CONFLICT - conflict with open's flags |
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341 * * OVERLOADED - out of DSP MIPS or memory |
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342 * paud.position_resolution; * smallest increment for position |
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343 */ |
| 0 | 344 |
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345 paud_init.srate = this->spec.freq; |
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346 paud_init.mode = PCM; |
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347 paud_init.operation = PLAY; |
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348 paud_init.channels = this->spec.channels; |
| 0 | 349 |
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350 /* Try for a closest match on audio format */ |
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351 format = 0; |
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352 for (test_format = SDL_FirstAudioFormat(this->spec.format); |
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353 !format && test_format;) { |
| 0 | 354 #ifdef DEBUG_AUDIO |
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355 fprintf(stderr, "Trying format 0x%4.4x\n", test_format); |
| 0 | 356 #endif |
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357 switch (test_format) { |
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358 case AUDIO_U8: |
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359 bytes_per_sample = 1; |
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360 paud_init.bits_per_sample = 8; |
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361 paud_init.flags = TWOS_COMPLEMENT | FIXED; |
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362 format = 1; |
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363 break; |
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364 case AUDIO_S8: |
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365 bytes_per_sample = 1; |
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366 paud_init.bits_per_sample = 8; |
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367 paud_init.flags = SIGNED | TWOS_COMPLEMENT | FIXED; |
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368 format = 1; |
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369 break; |
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370 case AUDIO_S16LSB: |
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371 bytes_per_sample = 2; |
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372 paud_init.bits_per_sample = 16; |
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373 paud_init.flags = SIGNED | TWOS_COMPLEMENT | FIXED; |
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374 format = 1; |
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375 break; |
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376 case AUDIO_S16MSB: |
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377 bytes_per_sample = 2; |
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378 paud_init.bits_per_sample = 16; |
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379 paud_init.flags = BIG_ENDIAN | SIGNED | TWOS_COMPLEMENT | FIXED; |
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380 format = 1; |
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381 break; |
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382 case AUDIO_U16LSB: |
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383 bytes_per_sample = 2; |
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384 paud_init.bits_per_sample = 16; |
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385 paud_init.flags = TWOS_COMPLEMENT | FIXED; |
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386 format = 1; |
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387 break; |
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388 case AUDIO_U16MSB: |
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389 bytes_per_sample = 2; |
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390 paud_init.bits_per_sample = 16; |
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391 paud_init.flags = BIG_ENDIAN | TWOS_COMPLEMENT | FIXED; |
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392 format = 1; |
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393 break; |
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394 default: |
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395 break; |
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396 } |
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397 if (!format) { |
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398 test_format = SDL_NextAudioFormat(); |
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399 } |
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400 } |
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401 if (format == 0) { |
| 0 | 402 #ifdef DEBUG_AUDIO |
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403 fprintf(stderr, "Couldn't find any hardware audio formats\n"); |
| 0 | 404 #endif |
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405 PAUDIO_CloseDevice(this); |
|
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406 SDL_SetError("Couldn't find any hardware audio formats"); |
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407 return 0; |
|
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408 } |
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409 this->spec.format = test_format; |
| 0 | 410 |
|
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411 /* |
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412 * We know the buffer size and the max number of subsequent writes |
|
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|
413 * that can be pending. If more than one can pend, allow the application |
|
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414 * to do something like double buffering between our write buffer and |
|
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415 * the device's own buffer that we are filling with write() anyway. |
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416 * |
|
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417 * We calculate this->spec.samples like this because |
|
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418 * SDL_CalculateAudioSpec() will give put paud_bufinfo.write_buf_cap |
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419 * (or paud_bufinfo.write_buf_cap/2) into this->spec.size in return. |
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420 */ |
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421 if (paud_bufinfo.request_buf_cap == 1) { |
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422 this->spec.samples = paud_bufinfo.write_buf_cap |
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423 / bytes_per_sample / this->spec.channels; |
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424 } else { |
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425 this->spec.samples = paud_bufinfo.write_buf_cap |
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426 / bytes_per_sample / this->spec.channels / 2; |
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427 } |
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428 paud_init.bsize = bytes_per_sample * this->spec.channels; |
| 0 | 429 |
|
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430 SDL_CalculateAudioSpec(&this->spec); |
| 0 | 431 |
|
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432 /* |
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433 * The AIX paud device init can't modify the values of the audio_init |
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434 * structure that we pass to it. So we don't need any recalculation |
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435 * of this stuff and no reinit call as in linux dsp and dma code. |
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436 * |
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437 * /dev/paud supports all of the encoding formats, so we don't need |
|
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438 * to do anything like reopening the device, either. |
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439 */ |
|
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440 if (ioctl(fd, AUDIO_INIT, &paud_init) < 0) { |
|
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441 switch (paud_init.rc) { |
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442 case 1: |
|
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443 err = "Couldn't set audio format: DSP can't do play requests"; |
|
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444 break; |
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445 case 2: |
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446 err = "Couldn't set audio format: DSP can't do record requests"; |
|
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447 break; |
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448 case 4: |
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449 err = "Couldn't set audio format: request was invalid"; |
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450 break; |
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451 case 5: |
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452 err = "Couldn't set audio format: conflict with open's flags"; |
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453 break; |
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454 case 6: |
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455 err = "Couldn't set audio format: out of DSP MIPS or memory"; |
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456 break; |
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457 default: |
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458 err = "Couldn't set audio format: not documented in sys/audio.h"; |
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459 break; |
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460 } |
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461 } |
| 0 | 462 |
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463 if (err != NULL) { |
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464 PAUDIO_CloseDevice(this); |
|
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465 SDL_SetError("Paudio: %s", err); |
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466 return 0; |
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467 } |
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468 |
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469 /* Allocate mixing buffer */ |
|
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470 this->hidden->mixlen = this->spec.size; |
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471 this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen); |
|
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472 if (this->hidden->mixbuf == NULL) { |
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473 PAUDIO_CloseDevice(this); |
|
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474 SDL_OutOfMemory(); |
|
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475 return 0; |
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476 } |
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477 SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size); |
| 0 | 478 |
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479 /* |
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480 * Set some paramters: full volume, first speaker that we can find. |
|
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481 * Ignore the other settings for now. |
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482 */ |
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483 paud_change.input = AUDIO_IGNORE; /* the new input source */ |
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484 paud_change.output = OUTPUT_1; /* EXTERNAL_SPEAKER,INTERNAL_SPEAKER,OUTPUT_1 */ |
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485 paud_change.monitor = AUDIO_IGNORE; /* the new monitor state */ |
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486 paud_change.volume = 0x7fffffff; /* volume level [0-0x7fffffff] */ |
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487 paud_change.volume_delay = AUDIO_IGNORE; /* the new volume delay */ |
|
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488 paud_change.balance = 0x3fffffff; /* the new balance */ |
|
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489 paud_change.balance_delay = AUDIO_IGNORE; /* the new balance delay */ |
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490 paud_change.treble = AUDIO_IGNORE; /* the new treble state */ |
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491 paud_change.bass = AUDIO_IGNORE; /* the new bass state */ |
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492 paud_change.pitch = AUDIO_IGNORE; /* the new pitch state */ |
| 0 | 493 |
|
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494 paud_control.ioctl_request = AUDIO_CHANGE; |
|
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495 paud_control.request_info = (char *) &paud_change; |
|
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496 if (ioctl(fd, AUDIO_CONTROL, &paud_control) < 0) { |
| 0 | 497 #ifdef DEBUG_AUDIO |
|
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498 fprintf(stderr, "Can't change audio display settings\n"); |
| 0 | 499 #endif |
|
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500 } |
| 0 | 501 |
|
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|
502 /* |
|
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503 * Tell the device to expect data. Actual start will wait for |
|
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|
504 * the first write() call. |
|
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505 */ |
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506 paud_control.ioctl_request = AUDIO_START; |
|
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507 paud_control.position = 0; |
|
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508 if (ioctl(fd, AUDIO_CONTROL, &paud_control) < 0) { |
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509 PAUDIO_CloseDevice(this); |
| 0 | 510 #ifdef DEBUG_AUDIO |
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511 fprintf(stderr, "Can't start audio play\n"); |
| 0 | 512 #endif |
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513 SDL_SetError("Can't start audio play"); |
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514 return 0; |
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515 } |
| 0 | 516 |
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517 /* Check to see if we need to use select() workaround */ |
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518 if (workaround != NULL) { |
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519 this->hidden->frame_ticks = (float) (this->spec.samples * 1000) / |
| 2060 | 520 this->spec.freq; |
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521 this->hidden->next_frame = SDL_GetTicks() + this->hidden->frame_ticks; |
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522 } |
| 0 | 523 |
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524 /* We're ready to rock and roll. :-) */ |
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525 return 1; |
| 0 | 526 } |
| 527 | |
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528 static int |
| 2060 | 529 PAUDIO_Init(SDL_AudioDriverImpl * impl) |
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530 { |
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531 /* !!! FIXME: not right for device enum? */ |
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532 int fd = OpenAudioPath(NULL, 0, OPEN_FLAGS, 0); |
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533 if (fd < 0) { |
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534 SDL_SetError("PAUDIO: Couldn't open audio device"); |
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535 return 0; |
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536 } |
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537 close(fd); |
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538 |
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539 /* Set the function pointers */ |
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540 impl->OpenDevice = DSP_OpenDevice; |
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541 impl->PlayDevice = DSP_PlayDevice; |
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542 impl->PlayDevice = DSP_WaitDevice; |
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543 impl->GetDeviceBuf = DSP_GetDeviceBuf; |
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544 impl->CloseDevice = DSP_CloseDevice; |
| 2060 | 545 impl->OnlyHasDefaultOutputDevice = 1; /* !!! FIXME: add device enum! */ |
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546 |
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547 /* !!! FIXME: device enum might make this 1. */ |
| 2942 | 548 return 2; /* 2 == definitely has an audio device. */ |
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549 } |
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550 |
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551 AudioBootStrap PAUDIO_bootstrap = { |
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552 PAUDIO_DRIVER_NAME, "AIX Paudio", PAUDIO_Init, 0 |
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553 }; |
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554 |
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555 /* vi: set ts=4 sw=4 expandtab: */ |