Squashed 'lib/lufa/' content from commit 385d40300

git-subtree-dir: lib/lufa
git-subtree-split: 385d4030035dbaf41591309dbde47653bd03841b

1 files changed, 223 insertions, 0 deletions

diff --git a/LUFA/Drivers/USB/Class/Host/AudioClassHost.c b/LUFA/Drivers/USB/Class/Host/AudioClassHost.c
new file mode 100644
index 0000000000..9f1a6dc2c8
--- /dev/null
+++ b/LUFA/Drivers/USB/Class/Host/AudioClassHost.c
@@ -0,0 +1,223 @@
+/*
+             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
+