--- /dev/null
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2017.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2017 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 disclaims 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 "AudioClassHost.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.DataINPipe.Address && !(DataINEndpoint)) ||
+ (AudioInterfaceInfo->Config.DataOUTPipe.Address && !(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_DIR_MASK) == ENDPOINT_DIR_IN)
+ DataINEndpoint = EndpointData;
+ else
+ DataOUTEndpoint = EndpointData;
+ }
+
+ AudioInterfaceInfo->Config.DataINPipe.Size = le16_to_cpu(DataINEndpoint->EndpointSize);
+ AudioInterfaceInfo->Config.DataINPipe.EndpointAddress = DataINEndpoint->EndpointAddress;
+ AudioInterfaceInfo->Config.DataINPipe.Type = EP_TYPE_ISOCHRONOUS;
+ AudioInterfaceInfo->Config.DataINPipe.Banks = 2;
+
+ AudioInterfaceInfo->Config.DataOUTPipe.Size = le16_to_cpu(DataOUTEndpoint->EndpointSize);
+ AudioInterfaceInfo->Config.DataOUTPipe.EndpointAddress = DataOUTEndpoint->EndpointAddress;
+ AudioInterfaceInfo->Config.DataOUTPipe.Type = EP_TYPE_ISOCHRONOUS;
+ AudioInterfaceInfo->Config.DataOUTPipe.Banks = 2;
+
+ if (!(Pipe_ConfigurePipeTable(&AudioInterfaceInfo->Config.DataINPipe, 1)))
+ return AUDIO_ENUMERROR_PipeConfigurationFailed;
+
+ if (!(Pipe_ConfigurePipeTable(&AudioInterfaceInfo->Config.DataOUTPipe, 1)))
+ 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
+
projects / qmk_firmware.git / blobdiff