diff options
Diffstat (limited to 'audio/hal/audio_hw.h')
| -rw-r--r-- | audio/hal/audio_hw.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/audio/hal/audio_hw.h b/audio/hal/audio_hw.h index f2b4d5e..36767c8 100644 --- a/audio/hal/audio_hw.h +++ b/audio/hal/audio_hw.h @@ -420,11 +420,17 @@ struct audio_device { audio_devices_t dummybuf_thread_devices; pthread_mutex_t dummybuf_thread_lock; pthread_t dummybuf_thread; + + pthread_mutex_t lock_inputs; /* see note below on mutex acquisition order */ }; /* * NOTE: when multiple mutexes have to be acquired, always take the - * stream_in or stream_out mutex first, followed by the audio_device mutex. + * lock_inputs, stream_in, stream_out, audio_device, then tfa9895 mutex. + * stream_in mutex must always be before stream_out mutex + * if both have to be taken (see get_echo_reference(), put_echo_reference()...) + * dummybuf_thread mutex is not related to the other mutexes with respect to order. + * lock_inputs must be held in order to either close the input stream, or prevent closure. */ #endif // NVIDIA_AUDIO_HW_H |