You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
248 lines
8.6 KiB
248 lines
8.6 KiB
/*
|
|
LUFA Library
|
|
Copyright (C) Dean Camera, 2011.
|
|
|
|
dean [at] fourwalledcubicle [dot] com
|
|
www.lufa-lib.org
|
|
*/
|
|
|
|
/*
|
|
Copyright 2011 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 "../../Core/USBMode.h"
|
|
|
|
#if defined(USB_CAN_BE_HOST)
|
|
|
|
#define __INCLUDE_FROM_AUDIO_DRIVER
|
|
#define __INCLUDE_FROM_AUDIO_HOST_C
|
|
#include "Audio.h"
|
|
|
|
uint8_t Audio_Host_ConfigurePipes(USB_ClassInfo_Audio_Host_t* const AudioInterfaceInfo,
|
|
uint16_t ConfigDescriptorSize,
|
|
void* ConfigDescriptorData)
|
|
{
|
|
USB_Descriptor_Endpoint_t* DataINEndpoint = NULL;
|
|
USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL;
|
|
USB_Descriptor_Interface_t* AudioControlInterface = NULL;
|
|
USB_Descriptor_Interface_t* AudioStreamingInterface = NULL;
|
|
|
|
memset(&AudioInterfaceInfo->State, 0x00, sizeof(AudioInterfaceInfo->State));
|
|
|
|
if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
|
|
return AUDIO_ENUMERROR_InvalidConfigDescriptor;
|
|
|
|
while ((AudioInterfaceInfo->Config.DataINPipeNumber && !(DataINEndpoint)) ||
|
|
(AudioInterfaceInfo->Config.DataOUTPipeNumber && !(DataOUTEndpoint)))
|
|
{
|
|
if (!(AudioControlInterface) ||
|
|
USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
|
|
DCOMP_Audio_Host_NextAudioInterfaceDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
|
|
{
|
|
if (!(AudioControlInterface) ||
|
|
USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
|
|
DCOMP_Audio_Host_NextAudioStreamInterface) != DESCRIPTOR_SEARCH_COMP_Found)
|
|
{
|
|
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
|
|
DCOMP_Audio_Host_NextAudioControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)
|
|
{
|
|
return AUDIO_ENUMERROR_NoCompatibleInterfaceFound;
|
|
}
|
|
|
|
AudioControlInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
|
|
|
|
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
|
|
DCOMP_Audio_Host_NextAudioStreamInterface) != DESCRIPTOR_SEARCH_COMP_Found)
|
|
{
|
|
return AUDIO_ENUMERROR_NoCompatibleInterfaceFound;
|
|
}
|
|
}
|
|
|
|
AudioStreamingInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
|
|
|
|
DataINEndpoint = NULL;
|
|
DataOUTEndpoint = NULL;
|
|
|
|
continue;
|
|
}
|
|
|
|
USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
|
|
|
|
if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
|
|
DataINEndpoint = EndpointData;
|
|
else
|
|
DataOUTEndpoint = EndpointData;
|
|
}
|
|
|
|
for (uint8_t PipeNum = 1; PipeNum < PIPE_TOTAL_PIPES; PipeNum++)
|
|
{
|
|
uint16_t Size;
|
|
uint8_t Type;
|
|
uint8_t Token;
|
|
uint8_t EndpointAddress;
|
|
bool DoubleBanked;
|
|
|
|
if (PipeNum == AudioInterfaceInfo->Config.DataINPipeNumber)
|
|
{
|
|
Size = DataINEndpoint->EndpointSize;
|
|
EndpointAddress = DataINEndpoint->EndpointAddress;
|
|
Token = PIPE_TOKEN_IN;
|
|
Type = EP_TYPE_ISOCHRONOUS;
|
|
DoubleBanked = true;
|
|
|
|
AudioInterfaceInfo->State.DataINPipeSize = DataINEndpoint->EndpointSize;
|
|
}
|
|
else if (PipeNum == AudioInterfaceInfo->Config.DataOUTPipeNumber)
|
|
{
|
|
Size = DataOUTEndpoint->EndpointSize;
|
|
EndpointAddress = DataOUTEndpoint->EndpointAddress;
|
|
Token = PIPE_TOKEN_OUT;
|
|
Type = EP_TYPE_ISOCHRONOUS;
|
|
DoubleBanked = true;
|
|
|
|
AudioInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize;
|
|
}
|
|
else
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if (!(Pipe_ConfigurePipe(PipeNum, Type, Token, EndpointAddress, Size,
|
|
DoubleBanked ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE)))
|
|
{
|
|
return AUDIO_ENUMERROR_PipeConfigurationFailed;
|
|
}
|
|
}
|
|
|
|
AudioInterfaceInfo->State.ControlInterfaceNumber = AudioControlInterface->InterfaceNumber;
|
|
AudioInterfaceInfo->State.StreamingInterfaceNumber = AudioStreamingInterface->InterfaceNumber;
|
|
AudioInterfaceInfo->State.EnabledStreamingAltIndex = AudioStreamingInterface->AlternateSetting;
|
|
AudioInterfaceInfo->State.IsActive = true;
|
|
|
|
return AUDIO_ENUMERROR_NoError;
|
|
}
|
|
|
|
static uint8_t DCOMP_Audio_Host_NextAudioControlInterface(void* CurrentDescriptor)
|
|
{
|
|
USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
|
|
|
|
if (Header->Type == DTYPE_Interface)
|
|
{
|
|
USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);
|
|
|
|
if ((Interface->Class == AUDIO_CSCP_AudioClass) &&
|
|
(Interface->SubClass == AUDIO_CSCP_ControlSubclass) &&
|
|
(Interface->Protocol == AUDIO_CSCP_ControlProtocol))
|
|
{
|
|
return DESCRIPTOR_SEARCH_Found;
|
|
}
|
|
}
|
|
|
|
return DESCRIPTOR_SEARCH_NotFound;
|
|
}
|
|
|
|
static uint8_t DCOMP_Audio_Host_NextAudioStreamInterface(void* CurrentDescriptor)
|
|
{
|
|
USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
|
|
|
|
if (Header->Type == DTYPE_Interface)
|
|
{
|
|
USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);
|
|
|
|
if ((Interface->Class == AUDIO_CSCP_AudioClass) &&
|
|
(Interface->SubClass == AUDIO_CSCP_AudioStreamingSubclass) &&
|
|
(Interface->Protocol == AUDIO_CSCP_StreamingProtocol))
|
|
{
|
|
return DESCRIPTOR_SEARCH_Found;
|
|
}
|
|
}
|
|
|
|
return DESCRIPTOR_SEARCH_NotFound;
|
|
}
|
|
|
|
static uint8_t DCOMP_Audio_Host_NextAudioInterfaceDataEndpoint(void* CurrentDescriptor)
|
|
{
|
|
USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
|
|
|
|
if (Header->Type == DTYPE_Endpoint)
|
|
{
|
|
USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t);
|
|
|
|
if ((Endpoint->Attributes & EP_TYPE_MASK) == EP_TYPE_ISOCHRONOUS)
|
|
return DESCRIPTOR_SEARCH_Found;
|
|
}
|
|
else if (Header->Type == DTYPE_Interface)
|
|
{
|
|
return DESCRIPTOR_SEARCH_Fail;
|
|
}
|
|
|
|
return DESCRIPTOR_SEARCH_NotFound;
|
|
}
|
|
|
|
uint8_t Audio_Host_StartStopStreaming(USB_ClassInfo_Audio_Host_t* const AudioInterfaceInfo,
|
|
const bool EnableStreaming)
|
|
{
|
|
if (!(AudioInterfaceInfo->State.IsActive))
|
|
return HOST_SENDCONTROL_DeviceDisconnected;
|
|
|
|
return USB_Host_SetInterfaceAltSetting(AudioInterfaceInfo->State.StreamingInterfaceNumber,
|
|
EnableStreaming ? AudioInterfaceInfo->State.EnabledStreamingAltIndex : 0);
|
|
}
|
|
|
|
uint8_t Audio_Host_GetSetEndpointProperty(USB_ClassInfo_Audio_Host_t* const AudioInterfaceInfo,
|
|
const uint8_t DataPipeIndex,
|
|
const uint8_t EndpointProperty,
|
|
const uint8_t EndpointControl,
|
|
const uint16_t DataLength,
|
|
void* const Data)
|
|
{
|
|
if (!(AudioInterfaceInfo->State.IsActive))
|
|
return HOST_SENDCONTROL_DeviceDisconnected;
|
|
|
|
uint8_t RequestType;
|
|
uint8_t EndpointAddress;
|
|
|
|
if (EndpointProperty & 0x80)
|
|
RequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_ENDPOINT);
|
|
else
|
|
RequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_ENDPOINT);
|
|
|
|
Pipe_SelectPipe(DataPipeIndex);
|
|
EndpointAddress = Pipe_GetBoundEndpointAddress();
|
|
|
|
USB_ControlRequest = (USB_Request_Header_t)
|
|
{
|
|
.bmRequestType = RequestType,
|
|
.bRequest = EndpointProperty,
|
|
.wValue = ((uint16_t)EndpointControl << 8),
|
|
.wIndex = EndpointAddress,
|
|
.wLength = DataLength,
|
|
};
|
|
|
|
Pipe_SelectPipe(PIPE_CONTROLPIPE);
|
|
|
|
return USB_Host_SendControlRequest(Data);
|
|
}
|
|
|
|
#endif
|
|
|