| extern "C" { | |
| /* sema init for audio */ | |
| int audio_sema_init(void); | |
| /* sema post */ | |
| void audio_sema_post(void); | |
| /* sema pend */ | |
| void audio_sema_pend(void); | |
| /* playback the audio */ | |
| int playback_stream_write(char *data, int len); | |
| /* audio dev init */ | |
| void setup_audio(void); | |
| /* start audio process */ | |
| int audio_start_proc(void); | |
| /* get current volume */ | |
| int audio_get_volume(void); | |
| /* set volume */ | |
| void audio_set_volume(int volume); | |
| } | |