qmk_firmware/LUFA/Drivers/USB/Class/Device/Audio.c
Dean Camera 158afe9109 Reverted Endpoint/Pipe non-sequential configuration hack, placed restriction on the configuration order instead to ensure maximum reliability.
Altered all low level device and host mode demos to ensure that endpoints and pipes are configured in ascending order properly.

Rewrote all low level host mode demos' configuration descriptor parser code to ensure that pipes are enumerated in ascending order, and to ensure maximum compatibility with devices.

Incremented all device mode demo's device descriptor revision numbers to ensure that any descriptor changes are re-fetched on machines which have enumerated previous versions.
2010-09-30 06:23:38 +00:00

97 lines
2.8 KiB
C

/*
LUFA Library
Copyright (C) Dean Camera, 2010.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, 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.
*/
#define __INCLUDE_FROM_USB_DRIVER
#include "../../HighLevel/USBMode.h"
#if defined(USB_CAN_BE_DEVICE)
#define __INCLUDE_FROM_AUDIO_DRIVER
#include "Audio.h"
void Audio_Device_ProcessControlRequest(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
{
if (!(Endpoint_IsSETUPReceived()))
return;
if (USB_ControlRequest.wIndex != AudioInterfaceInfo->Config.StreamingInterfaceNumber)
return;
switch (USB_ControlRequest.bRequest)
{
case REQ_SetInterface:
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_INTERFACE))
{
Endpoint_ClearSETUP();
Endpoint_ClearStatusStage();
AudioInterfaceInfo->State.InterfaceEnabled = ((USB_ControlRequest.wValue & 0xFF) != 0);
}
break;
}
}
bool Audio_Device_ConfigureEndpoints(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
{
memset(&AudioInterfaceInfo->State, 0x00, sizeof(AudioInterfaceInfo->State));
for (uint8_t EndpointNum = 1; EndpointNum < ENDPOINT_TOTAL_ENDPOINTS; EndpointNum++)
{
uint16_t Size;
uint8_t Type;
uint8_t Direction;
if (EndpointNum == AudioInterfaceInfo->Config.DataINEndpointNumber)
{
Size = AudioInterfaceInfo->Config.DataINEndpointSize;
Direction = ENDPOINT_DIR_IN;
Type = EP_TYPE_ISOCHRONOUS;
}
else if (EndpointNum == AudioInterfaceInfo->Config.DataOUTEndpointNumber)
{
Size = AudioInterfaceInfo->Config.DataOUTEndpointSize;
Direction = ENDPOINT_DIR_OUT;
Type = EP_TYPE_ISOCHRONOUS;
}
else
{
continue;
}
if (!(Endpoint_ConfigureEndpoint(EndpointNum, Type, Direction, Size, ENDPOINT_BANK_DOUBLE)))
{
return false;
}
}
return true;
}
#endif