X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/67f390fe746ccc4d1dceac23f590eb1723cb7ff2..cf22a744ec0da3b68c4ffdb14c6fa43f2e07542f:/Demos/Device/LowLevel/AudioInput/AudioInput.c diff --git a/Demos/Device/LowLevel/AudioInput/AudioInput.c b/Demos/Device/LowLevel/AudioInput/AudioInput.c index 5656b05d1..a61ff593c 100644 --- a/Demos/Device/LowLevel/AudioInput/AudioInput.c +++ b/Demos/Device/LowLevel/AudioInput/AudioInput.c @@ -78,21 +78,21 @@ void SetupHardware(void) /** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs, and * configures the sample update and PWM timers. */ -void EVENT_USB_Connect(void) +void EVENT_USB_Device_Connect(void) { /* Indicate USB enumerating */ LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); /* Sample reload timer initialization */ - OCR0A = (F_CPU / AUDIO_SAMPLE_FREQUENCY) - 1; + OCR0A = (F_CPU / 8 / AUDIO_SAMPLE_FREQUENCY) - 1; TCCR0A = (1 << WGM01); // CTC mode - TCCR0B = (1 << CS00); // Fcpu speed + TCCR0B = (1 << CS01); // Fcpu/8 speed } /** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via * the status LEDs, disables the sample update and PWM output timers and stops the USB and Audio management tasks. */ -void EVENT_USB_Disconnect(void) +void EVENT_USB_Device_Disconnect(void) { /* Stop the sample reload timer */ TCCR0B = 0; @@ -107,7 +107,7 @@ void EVENT_USB_Disconnect(void) /** Event handler for the USB_ConfigurationChanged event. This is fired when the host set the current configuration * of the USB device after enumeration - the device endpoints are configured. */ -void EVENT_USB_ConfigurationChanged(void) +void EVENT_USB_Device_ConfigurationChanged(void) { /* Indicate USB connected and ready */ LEDs_SetAllLEDs(LEDMASK_USB_READY); @@ -121,11 +121,11 @@ void EVENT_USB_ConfigurationChanged(void) } } -/** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific +/** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific * control requests that are not handled internally by the USB library (including the Audio class-specific * requests) so that they can be handled appropriately for the application. */ -void EVENT_USB_UnhandledControlPacket(void) +void EVENT_USB_Device_UnhandledControlRequest(void) { /* Process General and Audio specific control requests */ switch (USB_ControlRequest.bRequest) @@ -139,9 +139,7 @@ void EVENT_USB_UnhandledControlPacket(void) /* Check if the host is enabling the audio interface (setting AlternateSetting to 1) */ StreamingAudioInterfaceSelected = ((USB_ControlRequest.wValue) != 0); - /* Acknowledge status stage */ - while (!(Endpoint_IsINReady())); - Endpoint_ClearIN(); + Endpoint_ClearStatusStage(); } break; @@ -152,7 +150,7 @@ void EVENT_USB_UnhandledControlPacket(void) void USB_Audio_Task(void) { /* Device must be connected and configured for the task to run */ - if (!(USB_IsConnected) || !(USB_ConfigurationNumber)) + if (USB_DeviceState != DEVICE_STATE_Configured) return; /* Check to see if the streaming interface is selected, if not the host is not receiving audio */ @@ -171,10 +169,10 @@ void USB_Audio_Task(void) /* Audio sample is ADC value scaled to fit the entire range */ int16_t AudioSample = ((SAMPLE_MAX_RANGE / ADC_MAX_RANGE) * ADC_GetResult()); -#if defined(MICROPHONE_BIASED_TO_HALF_RAIL) + #if defined(MICROPHONE_BIASED_TO_HALF_RAIL) /* Microphone is biased to half rail voltage, subtract the bias from the sample value */ AudioSample -= (SAMPLE_MAX_RANGE / 2)); -#endif + #endif /* Write the sample to the buffer */ Endpoint_Write_Word_LE(AudioSample);