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Update AudioInput and AudioOutput Class Driver device mode demos to use a switch statement when selecting the audio request type for clarity.

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pull/1469/head
Dean Camera 14 years ago
parent 8c3d421a01
commit 75da0d1877
3 changed files with 51 additions and 55 deletions
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52
Demos/Device/ClassDriver/AudioInput/AudioInput.c
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@ -201,34 +201,32 @@ bool CALLBACK_Audio_Device_GetSetEndpointProperty(USB_ClassInfo_Audio_Device_t*
/* Check the requested control to see if a supported control is being manipulated */
if (EndpointControl == AUDIO_EPCONTROL_SamplingFreq)
{
/* Check the requested property to see if a supported property is being manipulated */
if (EndpointProperty == AUDIO_REQ_SetCurrent)
switch (EndpointProperty)
{
/* Check if we are just testing for a valid property, or actually adjusting it */
if (DataLength != NULL)
{
/* Set the new sampling frequency to the value given by the host */
CurrentAudioSampleFrequency = (((uint32_t)Data[2] << 16) | ((uint32_t)Data[1] << 8) | (uint32_t)Data[0]);
/* Adjust sample reload timer to the new frequency */
OCR0A = ((F_CPU / 8 / CurrentAudioSampleFrequency) - 1);
}
return true;
}
else if (EndpointProperty == AUDIO_REQ_GetCurrent)
{
/* Check if we are just testing for a valid property, or actually reading it */
if (DataLength != NULL)
{
*DataLength = 3;
Data[2] = (CurrentAudioSampleFrequency >> 16);
Data[1] = (CurrentAudioSampleFrequency >> 8);
Data[0] = (CurrentAudioSampleFrequency & 0xFF);
}
return true;
case AUDIO_REQ_SetCurrent:
/* Check if we are just testing for a valid property, or actually adjusting it */
if (DataLength != NULL)
{
/* Set the new sampling frequency to the value given by the host */
CurrentAudioSampleFrequency = (((uint32_t)Data[2] << 16) | ((uint32_t)Data[1] << 8) | (uint32_t)Data[0]);
/* Adjust sample reload timer to the new frequency */
OCR0A = ((F_CPU / 8 / CurrentAudioSampleFrequency) - 1);
}
return true;
case AUDIO_REQ_GetCurrent:
/* Check if we are just testing for a valid property, or actually reading it */
if (DataLength != NULL)
{
*DataLength = 3;
Data[2] = (CurrentAudioSampleFrequency >> 16);
Data[1] = (CurrentAudioSampleFrequency >> 8);
Data[0] = (CurrentAudioSampleFrequency & 0xFF);
}
return true;
}
}
}

52
Demos/Device/ClassDriver/AudioOutput/AudioOutput.c
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@ -238,34 +238,32 @@ bool CALLBACK_Audio_Device_GetSetEndpointProperty(USB_ClassInfo_Audio_Device_t*
/* Check the requested control to see if a supported control is being manipulated */
if (EndpointControl == AUDIO_EPCONTROL_SamplingFreq)
{
/* Check the requested property to see if a supported property is being manipulated */
if (EndpointProperty == AUDIO_REQ_SetCurrent)
switch (EndpointProperty)
{
/* Check if we are just testing for a valid property, or actually adjusting it */
if (DataLength != NULL)
{
/* Set the new sampling frequency to the value given by the host */
CurrentAudioSampleFrequency = (((uint32_t)Data[2] << 16) | ((uint32_t)Data[1] << 8) | (uint32_t)Data[0]);
/* Adjust sample reload timer to the new frequency */
OCR0A = ((F_CPU / 8 / CurrentAudioSampleFrequency) - 1);
}
return true;
}
else if (EndpointProperty == AUDIO_REQ_GetCurrent)
{
/* Check if we are just testing for a valid property, or actually reading it */
if (DataLength != NULL)
{
*DataLength = 3;
Data[2] = (CurrentAudioSampleFrequency >> 16);
Data[1] = (CurrentAudioSampleFrequency >> 8);
Data[0] = (CurrentAudioSampleFrequency & 0xFF);
}
return true;
case AUDIO_REQ_SetCurrent:
/* Check if we are just testing for a valid property, or actually adjusting it */
if (DataLength != NULL)
{
/* Set the new sampling frequency to the value given by the host */
CurrentAudioSampleFrequency = (((uint32_t)Data[2] << 16) | ((uint32_t)Data[1] << 8) | (uint32_t)Data[0]);
/* Adjust sample reload timer to the new frequency */
OCR0A = ((F_CPU / 8 / CurrentAudioSampleFrequency) - 1);
}
return true;
case AUDIO_REQ_GetCurrent:
/* Check if we are just testing for a valid property, or actually reading it */
if (DataLength != NULL)
{
*DataLength = 3;
Data[2] = (CurrentAudioSampleFrequency >> 16);
Data[1] = (CurrentAudioSampleFrequency >> 8);
Data[0] = (CurrentAudioSampleFrequency & 0xFF);
}
return true;
}
}
}

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LUFA.pnproj
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