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Commit of new class abstraction APIs for all device demos other than the MIDI demo - not documented yet.

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Removed scheduler and memory allocation libraries.

Added new EVENT_USB_StartOfFrame event in the library to indicate the start of each USB frame (when generated).

Removed Tx interrupt from the USBtoSerial demo; now sends characters via polling to ensure more time for the Rx interrupt.
This commit is contained in:
Dean Camera 2009-06-01 11:03:39 +00:00
parent 2440ca268a
commit d1e5266036
106 changed files with 3072 additions and 5760 deletions
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154
LUFA/Drivers/USB/Class/Device/Audio.c Normal file
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/*
LUFA Library
Copyright (C) Dean Camera, 2009.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, and distribute this software
and its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of the author not be used in
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaim all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
#include "Audio.h"
void USB_Audio_ProcessControlPacket(USB_ClassInfo_Audio_t* AudioInterfaceInfo)
{
if (!(Endpoint_IsSETUPReceived()))
return;
// if (USB_ControlRequest.wIndex != AudioInterfaceInfo->InterfaceNumber)
// return;
switch (USB_ControlRequest.bRequest)
{
case REQ_SetInterface:
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_INTERFACE))
{
Endpoint_ClearSETUP();
AudioInterfaceInfo->InterfaceEnabled = (USB_ControlRequest.wValue != 0);
while (!(Endpoint_IsINReady()));
Endpoint_ClearIN();
}
break;
}
}
bool USB_Audio_ConfigureEndpoints(USB_ClassInfo_Audio_t* AudioInterfaceInfo)
{
if (AudioInterfaceInfo->DataINEndpointNumber)
{
if (!(Endpoint_ConfigureEndpoint(AudioInterfaceInfo->DataINEndpointNumber, EP_TYPE_ISOCHRONOUS,
ENDPOINT_DIR_IN, AudioInterfaceInfo->DataINEndpointSize,
ENDPOINT_BANK_DOUBLE)))
{
return false;
}
}
if (AudioInterfaceInfo->DataOUTEndpointNumber)
{
if (!(Endpoint_ConfigureEndpoint(AudioInterfaceInfo->DataOUTEndpointNumber, EP_TYPE_ISOCHRONOUS,
ENDPOINT_DIR_OUT, AudioInterfaceInfo->DataOUTEndpointSize,
ENDPOINT_BANK_DOUBLE)))
{
return false;
}
}
return true;
}
int8_t USB_Audio_ReadSample8(void)
{
int8_t Sample;
Sample = Endpoint_Read_Byte();
if (!(Endpoint_IsReadWriteAllowed()))
Endpoint_ClearOUT();
return Sample;
}
int16_t USB_Audio_ReadSample16(void)
{
int16_t Sample;
Sample = (int16_t)Endpoint_Read_Word_LE();
if (!(Endpoint_IsReadWriteAllowed()))
Endpoint_ClearOUT();
return Sample;
}
int32_t USB_Audio_ReadSample24(void)
{
int32_t Sample;
Sample = (((uint32_t)Endpoint_Read_Byte() << 16) | Endpoint_Read_Word_LE());
if (!(Endpoint_IsReadWriteAllowed()))
Endpoint_ClearOUT();
return Sample;
}
void USB_Audio_WriteSample8(int8_t Sample)
{
Endpoint_Write_Byte(Sample);
if (!(Endpoint_IsReadWriteAllowed()))
Endpoint_ClearIN();
}
void USB_Audio_WriteSample16(int16_t Sample)
{
Endpoint_Write_Word_LE(Sample);
if (!(Endpoint_IsReadWriteAllowed()))
Endpoint_ClearIN();
}
void USB_Audio_WriteSample24(int32_t Sample)
{
Endpoint_Write_Byte(Sample >> 16);
Endpoint_Write_Word_LE(Sample);
if (!(Endpoint_IsReadWriteAllowed()))
Endpoint_ClearIN();
}
bool USB_Audio_IsSampleReceived(USB_ClassInfo_Audio_t* AudioInterfaceInfo)
{
Endpoint_SelectEndpoint(AudioInterfaceInfo->DataOUTEndpointNumber);
return Endpoint_IsOUTReceived();
}
bool USB_Audio_IsReadyForNextSample(USB_ClassInfo_Audio_t* AudioInterfaceInfo)
{
Endpoint_SelectEndpoint(AudioInterfaceInfo->DataINEndpointNumber);
return Endpoint_IsINReady();
}