const struct
{
uint8_t StreamingInterfaceNumber; /**< Index of the Audio Streaming interface within the device this
- * structure controls
+ * structure controls.
*/
uint8_t DataINEndpointNumber; /**< Endpoint number of the incoming Audio Streaming data, if available
- * (zero if unused)
+ * (zero if unused).
*/
uint16_t DataINEndpointSize; /**< Size in bytes of the incoming Audio Streaming data endpoint, if available
- * (zero if unused)
+ * (zero if unused).
*/
uint8_t DataOUTEndpointNumber; /**< Endpoint number of the outgoing Audio Streaming data, if available
- * (zero if unused)
+ * (zero if unused).
*/
uint16_t DataOUTEndpointSize; /**< Size in bytes of the outgoing Audio Streaming data endpoint, if available
- * (zero if unused)
+ * (zero if unused).
*/
} Config; /**< Config data for the USB class interface within the device. All elements in this section
* <b>must</b> be set or the interface will fail to enumerate and operate correctly.
* \ref EVENT_USB_Device_ConfigurationChanged() event so that the endpoints are configured when the configuration containing the
* given Audio interface is selected.
*
- * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state
+ * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
*
- * \return Boolean true if the endpoints were successfully configured, false otherwise
+ * \return Boolean true if the endpoints were successfully configured, false otherwise.
*/
bool Audio_Device_ConfigureEndpoints(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
/** Processes incoming control requests from the host, that are directed to the given Audio class interface. This should be
* linked to the library \ref EVENT_USB_Device_UnhandledControlRequest() event.
*
- * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state
+ * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
*/
void Audio_Device_ProcessControlRequest(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
/** General management task for a given Audio class interface, required for the correct operation of the interface. This should
* be called frequently in the main program loop, before the master USB management task \ref USB_USBTask().
*
- * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state
+ * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
*/
- static inline void Audio_Device_USBTask(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo);
+ static inline void Audio_Device_USBTask(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
+ ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE;
static inline void Audio_Device_USBTask(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
{
(void)AudioInterfaceInfo;
/** Determines if the given audio interface is ready for a sample to be read from it, and selects the streaming
* OUT endpoint ready for reading.
*
- * \note This function must only be called when the Device state machine is in the DEVICE_STATE_Configured state or
- * the call will fail.
+ * \pre This function must only be called when the Device state machine is in the DEVICE_STATE_Configured state or
+ * the call will fail.
*
- * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state
+ * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
*
- * \return Boolean true if the given Audio interface has a sample to be read, false otherwise
- */
+ * \return Boolean true if the given Audio interface has a sample to be read, false otherwise.
+ */
+ static inline bool Audio_Device_IsSampleReceived(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
+ ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE;
static inline bool Audio_Device_IsSampleReceived(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
{
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(AudioInterfaceInfo->State.InterfaceEnabled))
/** Determines if the given audio interface is ready to accept the next sample to be written to it, and selects
* the streaming IN endpoint ready for writing.
*
- * \note This function must only be called when the Device state machine is in the DEVICE_STATE_Configured state or
- * the call will fail.
+ * \pre This function must only be called when the Device state machine is in the DEVICE_STATE_Configured state or
+ * the call will fail.
*
- * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state
+ * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
*
- * \return Boolean true if the given Audio interface is ready to accept the next sample, false otherwise
+ * \return Boolean true if the given Audio interface is ready to accept the next sample, false otherwise.
*/
static inline bool Audio_Device_IsReadyForNextSample(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
+ ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE;
+ static inline bool Audio_Device_IsReadyForNextSample(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
{
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(AudioInterfaceInfo->State.InterfaceEnabled))
return false;
/** Reads the next 8-bit audio sample from the current audio interface.
*
- * \note This should be preceded immediately by a call to the USB_Audio_IsSampleReceived() function to ensure that
- * the correct endpoint is selected and ready for data.
+ * \pre This should be preceded immediately by a call to the \ref Audio_Device_IsSampleReceived() function to ensure
+ * ensure the correct endpoint is selected and ready for data.
*
- * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state
+ * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
*
- * \return Signed 8-bit audio sample from the audio interface
+ * \return Signed 8-bit audio sample from the audio interface.
*/
- static inline int8_t Audio_Device_ReadSample8(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo) ATTR_ALWAYS_INLINE;
+ static inline int8_t Audio_Device_ReadSample8(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
+ ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE;
static inline int8_t Audio_Device_ReadSample8(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
{
int8_t Sample;
/** Reads the next 16-bit audio sample from the current audio interface.
*
- * \note This should be preceded immediately by a call to the USB_Audio_IsSampleReceived() function to ensure that
- * the correct endpoint is selected and ready for data.
+ * \pre This should be preceded immediately by a call to the \ref Audio_Device_IsSampleReceived() function to ensure
+ * that the correct endpoint is selected and ready for data.
*
- * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state
+ * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
*
- * \return Signed 16-bit audio sample from the audio interface
+ * \return Signed 16-bit audio sample from the audio interface.
*/
- static inline int16_t Audio_Device_ReadSample16(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo) ATTR_ALWAYS_INLINE;
+ static inline int16_t Audio_Device_ReadSample16(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
+ ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE;
static inline int16_t Audio_Device_ReadSample16(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
{
int16_t Sample;
/** Reads the next 24-bit audio sample from the current audio interface.
*
- * \note This should be preceded immediately by a call to the USB_Audio_IsSampleReceived() function to ensure that
- * the correct endpoint is selected and ready for data.
+ * \pre This should be preceded immediately by a call to the \ref Audio_Device_IsSampleReceived() function to ensure
+ * that the correct endpoint is selected and ready for data.
*
- * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state
+ * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
*
- * \return Signed 24-bit audio sample from the audio interface
+ * \return Signed 24-bit audio sample from the audio interface.
*/
- static inline int32_t Audio_Device_ReadSample24(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo) ATTR_ALWAYS_INLINE;
+ static inline int32_t Audio_Device_ReadSample24(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
+ ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE;
static inline int32_t Audio_Device_ReadSample24(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
{
int32_t Sample;
/** Writes the next 8-bit audio sample to the current audio interface.
*
- * \note This should be preceded immediately by a call to the USB_Audio_IsReadyForNextSample() function to ensure that
- * the correct endpoint is selected and ready for data.
+ * \pre This should be preceded immediately by a call to the \ref Audio_Device_IsReadyForNextSample() function to
+ * ensure that the correct endpoint is selected and ready for data.
*
- * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state
- * \param[in] Sample Signed 8-bit audio sample
+ * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
+ * \param[in] Sample Signed 8-bit audio sample.
*/
static inline void Audio_Device_WriteSample8(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
- const int8_t Sample) ATTR_ALWAYS_INLINE;
+ const int8_t Sample) ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE;
static inline void Audio_Device_WriteSample8(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
const int8_t Sample)
{
/** Writes the next 16-bit audio sample to the current audio interface.
*
- * \note This should be preceded immediately by a call to the USB_Audio_IsReadyForNextSample() function to ensure that
- * the correct endpoint is selected and ready for data.
+ * \pre This should be preceded immediately by a call to the \ref Audio_Device_IsReadyForNextSample() function to
+ * ensure that the correct endpoint is selected and ready for data.
*
- * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state
- * \param[in] Sample Signed 16-bit audio sample
+ * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
+ * \param[in] Sample Signed 16-bit audio sample.
*/
static inline void Audio_Device_WriteSample16(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
- const int16_t Sample) ATTR_ALWAYS_INLINE;
+ const int16_t Sample) ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE;
static inline void Audio_Device_WriteSample16(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
const int16_t Sample)
{
/** Writes the next 24-bit audio sample to the current audio interface.
*
- * \note This should be preceded immediately by a call to the USB_Audio_IsReadyForNextSample() function to ensure that
- * the correct endpoint is selected and ready for data.
+ * \pre This should be preceded immediately by a call to the \ref Audio_Device_IsReadyForNextSample() function to
+ * ensure that the correct endpoint is selected and ready for data.
*
- * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state
- * \param[in] Sample Signed 24-bit audio sample
+ * \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
+ * \param[in] Sample Signed 24-bit audio sample.
*/
static inline void Audio_Device_WriteSample24(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
- const int32_t Sample) ATTR_ALWAYS_INLINE;
+ const int32_t Sample) ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE;
static inline void Audio_Device_WriteSample24(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
const int32_t Sample)
{
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