+/*\r
+ LUFA Library\r
+ Copyright (C) Dean Camera, 2011.\r
+\r
+ dean [at] fourwalledcubicle [dot] com\r
+ www.lufa-lib.org\r
+*/\r
+\r
+/*\r
+ Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+ Permission to use, copy, modify, distribute, and sell this\r
+ software and its documentation for any purpose is hereby granted\r
+ without fee, provided that the above copyright notice appear in\r
+ all copies and that both that the copyright notice and this\r
+ permission notice and warranty disclaimer appear in supporting\r
+ documentation, and that the name of the author not be used in\r
+ advertising or publicity pertaining to distribution of the\r
+ software without specific, written prior permission.\r
+\r
+ The author disclaim all warranties with regard to this\r
+ software, including all implied warranties of merchantability\r
+ and fitness. In no event shall the author be liable for any\r
+ special, indirect or consequential damages or any damages\r
+ whatsoever resulting from loss of use, data or profits, whether\r
+ in an action of contract, negligence or other tortious action,\r
+ arising out of or in connection with the use or performance of\r
+ this software.\r
+*/\r
+\r
+#define __INCLUDE_FROM_USB_DRIVER\r
+#include "../../Core/USBMode.h"\r
+\r
+#if defined(USB_CAN_BE_HOST)\r
+\r
+#define __INCLUDE_FROM_AUDIO_DRIVER\r
+#define __INCLUDE_FROM_AUDIO_HOST_C\r
+#include "Audio.h"\r
+\r
+uint8_t Audio_Host_ConfigurePipes(USB_ClassInfo_Audio_Host_t* const AudioInterfaceInfo,\r
+ uint16_t ConfigDescriptorSize,\r
+ void* ConfigDescriptorData)\r
+{\r
+ USB_Descriptor_Endpoint_t* DataINEndpoint = NULL;\r
+ USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL;\r
+ USB_Descriptor_Interface_t* AudioControlInterface = NULL;\r
+ USB_Descriptor_Interface_t* AudioStreamingInterface = NULL;\r
+\r
+ memset(&AudioInterfaceInfo->State, 0x00, sizeof(AudioInterfaceInfo->State));\r
+\r
+ if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)\r
+ return AUDIO_ENUMERROR_InvalidConfigDescriptor;\r
+\r
+ while (!(DataINEndpoint) || !(DataOUTEndpoint))\r
+ {\r
+ if (!(AudioControlInterface) ||\r
+ USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
+ DComp_NextAudioInterfaceDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)\r
+ {\r
+ if (!(AudioControlInterface) ||\r
+ USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
+ DComp_NextAudioStreamInterface) != DESCRIPTOR_SEARCH_COMP_Found)\r
+ {\r
+ if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
+ DComp_NextAudioControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)\r
+ {\r
+ return AUDIO_ENUMERROR_NoCompatibleInterfaceFound;\r
+ }\r
+\r
+ AudioControlInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t); \r
+\r
+ if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
+ DComp_NextAudioStreamInterface) != DESCRIPTOR_SEARCH_COMP_Found)\r
+ {\r
+ return AUDIO_ENUMERROR_NoCompatibleInterfaceFound;\r
+ }\r
+ }\r
+\r
+ AudioStreamingInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);\r
+\r
+ continue;\r
+ }\r
+\r
+ USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);\r
+\r
+ if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)\r
+ DataINEndpoint = EndpointData;\r
+ else\r
+ DataOUTEndpoint = EndpointData;\r
+ }\r
+\r
+ for (uint8_t PipeNum = 1; PipeNum < PIPE_TOTAL_PIPES; PipeNum++)\r
+ {\r
+ uint16_t Size;\r
+ uint8_t Type;\r
+ uint8_t Token;\r
+ uint8_t EndpointAddress;\r
+ bool DoubleBanked;\r
+\r
+ if (PipeNum == AudioInterfaceInfo->Config.DataINPipeNumber)\r
+ {\r
+ Size = DataINEndpoint->EndpointSize;\r
+ EndpointAddress = DataINEndpoint->EndpointAddress;\r
+ Token = PIPE_TOKEN_IN;\r
+ Type = EP_TYPE_BULK;\r
+ DoubleBanked = true;\r
+\r
+ AudioInterfaceInfo->State.DataINPipeSize = DataINEndpoint->EndpointSize;\r
+ }\r
+ else if (PipeNum == AudioInterfaceInfo->Config.DataOUTPipeNumber)\r
+ {\r
+ Size = DataOUTEndpoint->EndpointSize;\r
+ EndpointAddress = DataOUTEndpoint->EndpointAddress;\r
+ Token = PIPE_TOKEN_OUT;\r
+ Type = EP_TYPE_ISOCHRONOUS;\r
+ DoubleBanked = true;\r
+\r
+ AudioInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize;\r
+ }\r
+ else\r
+ {\r
+ continue;\r
+ }\r
+ \r
+ if (!(Pipe_ConfigurePipe(PipeNum, Type, Token, EndpointAddress, Size,\r
+ DoubleBanked ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE)))\r
+ {\r
+ return AUDIO_ENUMERROR_PipeConfigurationFailed;\r
+ }\r
+ }\r
+\r
+ AudioInterfaceInfo->State.ControlInterfaceNumber = AudioControlInterface->InterfaceNumber;\r
+ AudioInterfaceInfo->State.StreamingInterfaceNumber = AudioStreamingInterface->InterfaceNumber;\r
+ AudioInterfaceInfo->State.EnabledStreamingAltIndex = AudioStreamingInterface->AlternateSetting;\r
+ AudioInterfaceInfo->State.IsActive = true;\r
+ \r
+ return AUDIO_ENUMERROR_NoError;\r
+}\r
+\r
+static uint8_t DComp_NextAudioControlInterface(void* CurrentDescriptor)\r
+{\r
+ USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);\r
+\r
+ if (Header->Type == DTYPE_Interface)\r
+ {\r
+ USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);\r
+\r
+ if ((Interface->Class == AUDIO_CSCP_AudioClass) &&\r
+ (Interface->SubClass == AUDIO_CSCP_ControlSubclass) &&\r
+ (Interface->Protocol == AUDIO_CSCP_ControlProtocol))\r
+ {\r
+ return DESCRIPTOR_SEARCH_Found;\r
+ }\r
+ }\r
+\r
+ return DESCRIPTOR_SEARCH_NotFound;\r
+}\r
+\r
+static uint8_t DComp_NextAudioStreamInterface(void* CurrentDescriptor)\r
+{\r
+ USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);\r
+\r
+ if (Header->Type == DTYPE_Interface)\r
+ {\r
+ USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);\r
+\r
+ if ((Interface->Class == AUDIO_CSCP_AudioClass) &&\r
+ (Interface->SubClass == AUDIO_CSCP_AudioStreamingSubclass) &&\r
+ (Interface->Protocol == AUDIO_CSCP_StreamingProtocol))\r
+ {\r
+ return DESCRIPTOR_SEARCH_Found;\r
+ }\r
+ }\r
+\r
+ return DESCRIPTOR_SEARCH_NotFound;\r
+}\r
+\r
+static uint8_t DComp_NextAudioInterfaceDataEndpoint(void* CurrentDescriptor)\r
+{\r
+ USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);\r
+\r
+ if (Header->Type == DTYPE_Endpoint)\r
+ {\r
+ USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t);\r
+\r
+ if ((Endpoint->Attributes & EP_TYPE_MASK) == EP_TYPE_ISOCHRONOUS)\r
+ return DESCRIPTOR_SEARCH_Found;\r
+ }\r
+ else if (Header->Type == DTYPE_Interface)\r
+ {\r
+ return DESCRIPTOR_SEARCH_Fail;\r
+ }\r
+\r
+ return DESCRIPTOR_SEARCH_NotFound;\r
+}\r
+\r
+uint8_t AUDIO_Host_StartStopStreaming(USB_ClassInfo_Audio_Host_t* const AudioInterfaceInfo,\r
+ bool EnableStreaming)\r
+{\r
+ if (!(AudioInterfaceInfo->State.IsActive))\r
+ return HOST_SENDCONTROL_DeviceDisconnected;\r
+\r
+ return USB_Host_SetInterfaceAltSetting(AudioInterfaceInfo->State.StreamingInterfaceNumber,\r
+ EnableStreaming ? AudioInterfaceInfo->State.EnabledStreamingAltIndex : 0);\r
+}\r
+\r
+#endif\r
+\r
projects / pub / lufa.git / blobdiff