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The Audio_Device_IsSampleReceived() and Audio_Device_IsReadyForNextSample() functions are now inline, to reduce overhead.

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This commit is contained in:
Dean Camera 2010-04-29 14:54:11 +00:00
parent 9e34144c9b
commit 9cad677ebb
5 changed files with 33 additions and 32 deletions
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40
LUFA/Drivers/USB/Class/Device/Audio.h
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@ -129,6 +129,18 @@
*/
void Audio_Device_ProcessControlRequest(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
/* Inline Functions: */
/** 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
*/
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)
{
(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.
*
@ -138,8 +150,15 @@
* \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
*/
bool Audio_Device_IsSampleReceived(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo);
*/
static inline bool Audio_Device_IsSampleReceived(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
{
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(AudioInterfaceInfo->State.InterfaceEnabled))
return false;
Endpoint_SelectEndpoint(AudioInterfaceInfo->Config.DataOUTEndpointNumber);
return Endpoint_IsOUTReceived();
}
/** 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.
@ -151,18 +170,13 @@
*
* \return Boolean true if the given Audio interface is ready to accept the next sample, false otherwise
*/
bool Audio_Device_IsReadyForNextSample(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo);
/* Inline Functions: */
/** 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
*/
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)
static inline bool Audio_Device_IsReadyForNextSample(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
{
(void)AudioInterfaceInfo;
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(AudioInterfaceInfo->State.InterfaceEnabled))
return false;
Endpoint_SelectEndpoint(AudioInterfaceInfo->Config.DataINEndpointNumber);
return Endpoint_IsINReady();
}
/** Reads the next 8-bit audio sample from the current audio interface.