diff options
Diffstat (limited to 'src/class/audio/audio_host.h')
| -rw-r--r-- | src/class/audio/audio_host.h | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/src/class/audio/audio_host.h b/src/class/audio/audio_host.h index 9fcbe2577..b1e2a9169 100644 --- a/src/class/audio/audio_host.h +++ b/src/class/audio/audio_host.h @@ -85,10 +85,6 @@ typedef struct { uint8_t channels; } tuh_audio_stream_config_t; -// Asynchronous completion callback of tuh_audio_configure(). -typedef void (*tuh_audio_configure_cb_t)(uint8_t dev_idx, uint8_t stream_idx, tusb_xfer_result_t result, - uintptr_t user_data); - //--------------------------------------------------------------------+ // Stream Enumeration //--------------------------------------------------------------------+ @@ -118,26 +114,24 @@ uint8_t tuh_audio_active_config(uint8_t dev_idx, uint8_t stream_idx); bool tuh_audio_config_get(uint8_t dev_idx, uint8_t stream_idx, uint8_t config_idx, tuh_audio_stream_config_t *config); //--------------------------------------------------------------------+ -// Configuration (ALSA hw_params analogue, asynchronous) +// Configuration (ALSA hw_params analogue) //--------------------------------------------------------------------+ -// Configure the stream with the discrete configuration identified by -// config_idx. The driver asynchronously: +// Synchronously configure the stream with the discrete configuration identified by +// config_idx. The driver: // 1. resolves the AS interface and alternate setting, -// 2. issues SET_INTERFACE (checking submission and transfer result), -// 3. opens / reconfigures only the selected endpoint, -// 4. sets the endpoint sampling frequency when supported, -// 5. initializes the FIFO and packet scheduler. -// complete_cb is invoked with the final XFER_RESULT_* status. -bool tuh_audio_configure(uint8_t dev_idx, uint8_t stream_idx, uint8_t config_idx, tuh_audio_configure_cb_t complete_cb, - uintptr_t user_data); +// 2. initializes the FIFO and packet scheduler, +// 3. opens / reconfigures only the selected endpoint. +bool tuh_audio_configure(uint8_t dev_idx, uint8_t stream_idx, uint8_t config_idx); //--------------------------------------------------------------------+ // Stream Control / Frame-based Data //--------------------------------------------------------------------+ -// Start/stop transferring data on a configured stream. +// Start transferring data by activating the alternate setting selected by +// configure, then set the endpoint sampling frequency when supported. bool tuh_audio_start(uint8_t dev_idx, uint8_t stream_idx); +// Stop transferring and deactivate the Audio Streaming interface (alt 0). bool tuh_audio_stop(uint8_t dev_idx, uint8_t stream_idx); // Frame-based transfer. One frame = channels * bytes per sample. |