1 files changed, 399 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/HIDClassHost.c b/LUFA/Drivers/USB/Class/Host/HIDClassHost.c
new file mode 100644
index 0000000000..32591ffd74
--- /dev/null
+++ b/LUFA/Drivers/USB/Class/Host/HIDClassHost.c
@@ -0,0 +1,399 @@
+/*
+             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_HID_DRIVER
+#define  __INCLUDE_FROM_HID_HOST_C
+#include "HIDClassHost.h"
+
+uint8_t HID_Host_ConfigurePipes(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
+                                uint16_t ConfigDescriptorSize,
+                                void* ConfigDescriptorData)
+{
+	USB_Descriptor_Endpoint_t*  DataINEndpoint  = NULL;
+	USB_Descriptor_Endpoint_t*  DataOUTEndpoint = NULL;
+	USB_Descriptor_Interface_t* HIDInterface    = NULL;
+	USB_HID_Descriptor_HID_t*   HIDDescriptor   = NULL;
+
+	memset(&HIDInterfaceInfo->State, 0x00, sizeof(HIDInterfaceInfo->State));
+
+	if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
+	  return HID_ENUMERROR_InvalidConfigDescriptor;
+
+	while (!(DataINEndpoint) || !(DataOUTEndpoint))
+	{
+		if (!(HIDInterface) ||
+		    USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
+		                              DCOMP_HID_Host_NextHIDInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
+		{
+			if (DataINEndpoint)
+			  break;
+
+			do
+			{
+				if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
+				                              DCOMP_HID_Host_NextHIDInterface) != DESCRIPTOR_SEARCH_COMP_Found)
+				{
+					return HID_ENUMERROR_NoCompatibleInterfaceFound;
+				}
+
+				HIDInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
+			} while (HIDInterfaceInfo->Config.HIDInterfaceProtocol &&
+					 (HIDInterface->Protocol != HIDInterfaceInfo->Config.HIDInterfaceProtocol));
+
+			if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
+			                              DCOMP_HID_Host_NextHIDDescriptor) != DESCRIPTOR_SEARCH_COMP_Found)
+			{
+				return HID_ENUMERROR_NoCompatibleInterfaceFound;
+			}
+
+			HIDDescriptor = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_HID_Descriptor_HID_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;
+	}
+
+	HIDInterfaceInfo->Config.DataINPipe.Size  = le16_to_cpu(DataINEndpoint->EndpointSize);
+	HIDInterfaceInfo->Config.DataINPipe.EndpointAddress = DataINEndpoint->EndpointAddress;
+	HIDInterfaceInfo->Config.DataINPipe.Type  = EP_TYPE_INTERRUPT;
+
+	if (!(Pipe_ConfigurePipeTable(&HIDInterfaceInfo->Config.DataINPipe, 1)))
+	  return HID_ENUMERROR_PipeConfigurationFailed;
+
+	if (DataOUTEndpoint)
+	{
+		HIDInterfaceInfo->Config.DataOUTPipe.Size = le16_to_cpu(DataOUTEndpoint->EndpointSize);
+		HIDInterfaceInfo->Config.DataOUTPipe.EndpointAddress = DataOUTEndpoint->EndpointAddress;
+		HIDInterfaceInfo->Config.DataOUTPipe.Type = EP_TYPE_INTERRUPT;
+
+		if (!(Pipe_ConfigurePipeTable(&HIDInterfaceInfo->Config.DataOUTPipe, 1)))
+		  return HID_ENUMERROR_PipeConfigurationFailed;
+	}
+
+	HIDInterfaceInfo->State.InterfaceNumber      = HIDInterface->InterfaceNumber;
+	HIDInterfaceInfo->State.HIDReportSize        = LE16_TO_CPU(HIDDescriptor->HIDReportLength);
+	HIDInterfaceInfo->State.SupportsBootProtocol = (HIDInterface->SubClass != HID_CSCP_NonBootProtocol);
+	HIDInterfaceInfo->State.LargestReportSize    = 8;
+	HIDInterfaceInfo->State.IsActive             = true;
+
+	return HID_ENUMERROR_NoError;
+}
+
+static uint8_t DCOMP_HID_Host_NextHIDInterface(void* const 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 == HID_CSCP_HIDClass)
+		  return DESCRIPTOR_SEARCH_Found;
+	}
+
+	return DESCRIPTOR_SEARCH_NotFound;
+}
+
+static uint8_t DCOMP_HID_Host_NextHIDDescriptor(void* const CurrentDescriptor)
+{
+	USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
+
+	if (Header->Type == HID_DTYPE_HID)
+	  return DESCRIPTOR_SEARCH_Found;
+	else if (Header->Type == DTYPE_Interface)
+	  return DESCRIPTOR_SEARCH_Fail;
+	else
+	  return DESCRIPTOR_SEARCH_NotFound;
+}
+
+static uint8_t DCOMP_HID_Host_NextHIDInterfaceEndpoint(void* const 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 (!(Pipe_IsEndpointBound(Endpoint->EndpointAddress)))
+		  return DESCRIPTOR_SEARCH_Found;
+	}
+	else if (Header->Type == DTYPE_Interface)
+	{
+		return DESCRIPTOR_SEARCH_Fail;
+	}
+
+	return DESCRIPTOR_SEARCH_NotFound;
+}
+
+#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
+uint8_t HID_Host_ReceiveReportByID(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
+                                   const uint8_t ReportID,
+                                   void* Buffer)
+{
+	USB_ControlRequest = (USB_Request_Header_t)
+	{
+		.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
+		.bRequest      = HID_REQ_SetReport,
+		.wValue        = ((HID_REPORT_ITEM_In + 1) << 8) | ReportID,
+		.wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
+		.wLength       = USB_GetHIDReportSize(HIDInterfaceInfo->Config.HIDParserData, ReportID, HID_REPORT_ITEM_In),
+	};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+	return USB_Host_SendControlRequest(Buffer);
+}
+#endif
+
+uint8_t HID_Host_ReceiveReport(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
+                               void* Buffer)
+{
+	if ((USB_HostState != HOST_STATE_Configured) || !(HIDInterfaceInfo->State.IsActive))
+	  return PIPE_READYWAIT_DeviceDisconnected;
+
+	uint8_t ErrorCode;
+
+	Pipe_SelectPipe(HIDInterfaceInfo->Config.DataINPipe.Address);
+	Pipe_Unfreeze();
+
+	uint16_t ReportSize;
+	uint8_t* BufferPos = Buffer;
+
+#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
+	if (!(HIDInterfaceInfo->State.UsingBootProtocol))
+	{
+		uint8_t ReportID = 0;
+
+		if (HIDInterfaceInfo->Config.HIDParserData->UsingReportIDs)
+		{
+			ReportID = Pipe_Read_8();
+			*(BufferPos++) = ReportID;
+		}
+
+		ReportSize = USB_GetHIDReportSize(HIDInterfaceInfo->Config.HIDParserData, ReportID, HID_REPORT_ITEM_In);
+	}
+	else
+#endif
+	{
+		ReportSize = Pipe_BytesInPipe();
+	}
+
+	if ((ErrorCode = Pipe_Read_Stream_LE(BufferPos, ReportSize, NULL)) != PIPE_RWSTREAM_NoError)
+	  return ErrorCode;
+
+	Pipe_ClearIN();
+	Pipe_Freeze();
+
+	return PIPE_RWSTREAM_NoError;
+}
+
+uint8_t HID_Host_SendReportByID(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
+#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
+                                const uint8_t ReportID,
+#endif
+                                const uint8_t ReportType,
+                                void* Buffer,
+                                const uint16_t ReportSize)
+{
+#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
+	if ((USB_HostState != HOST_STATE_Configured) || !(HIDInterfaceInfo->State.IsActive))
+	  return PIPE_RWSTREAM_NoError;
+
+	if (HIDInterfaceInfo->State.DeviceUsesOUTPipe && (ReportType == HID_REPORT_ITEM_Out))
+	{
+		uint8_t ErrorCode;
+
+		Pipe_SelectPipe(HIDInterfaceInfo->Config.DataOUTPipe.Address);
+		Pipe_Unfreeze();
+
+		if (ReportID)
+		  Pipe_Write_Stream_LE(&ReportID, sizeof(ReportID), NULL);
+
+		if ((ErrorCode = Pipe_Write_Stream_LE(Buffer, ReportSize, NULL)) != PIPE_RWSTREAM_NoError)
+		  return ErrorCode;
+
+		Pipe_ClearOUT();
+		Pipe_Freeze();
+
+		return PIPE_RWSTREAM_NoError;
+	}
+	else
+#endif
+	{
+		USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
+			.bRequest      = HID_REQ_SetReport,
+#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
+			.wValue        = ((ReportType + 1) << 8) | ReportID,
+#else
+			.wValue        = ((ReportType + 1) << 8),
+#endif
+			.wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
+			.wLength       = ReportSize,
+		};
+
+		Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+		return USB_Host_SendControlRequest(Buffer);
+	}
+}
+
+bool HID_Host_IsReportReceived(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo)
+{
+	if ((USB_HostState != HOST_STATE_Configured) || !(HIDInterfaceInfo->State.IsActive))
+	  return false;
+
+	bool ReportReceived;
+
+	Pipe_SelectPipe(HIDInterfaceInfo->Config.DataINPipe.Address);
+	Pipe_Unfreeze();
+
+	ReportReceived = Pipe_IsINReceived();
+
+	Pipe_Freeze();
+
+	return ReportReceived;
+}
+
+uint8_t HID_Host_SetBootProtocol(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo)
+{
+	uint8_t ErrorCode;
+
+	if (!(HIDInterfaceInfo->State.SupportsBootProtocol))
+	  return HID_ERROR_LOGICAL;
+
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
+			.bRequest      = HID_REQ_SetProtocol,
+			.wValue        = 0,
+			.wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
+			.wLength       = 0,
+		};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+	if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
+	  return ErrorCode;
+
+	HIDInterfaceInfo->State.LargestReportSize = 8;
+	HIDInterfaceInfo->State.UsingBootProtocol = true;
+
+	return HOST_SENDCONTROL_Successful;
+}
+
+uint8_t HID_Host_SetIdlePeriod(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
+                               const uint16_t MS)
+{
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
+			.bRequest      = HID_REQ_SetIdle,
+			.wValue        = ((MS << 6) & 0xFF00),
+			.wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
+			.wLength       = 0,
+		};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+	return USB_Host_SendControlRequest(NULL);
+}
+
+#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
+uint8_t HID_Host_SetReportProtocol(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo)
+{
+	uint8_t ErrorCode;
+
+	uint8_t HIDReportData[HIDInterfaceInfo->State.HIDReportSize];
+
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_INTERFACE),
+			.bRequest      = REQ_GetDescriptor,
+			.wValue        = (HID_DTYPE_Report << 8),
+			.wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
+			.wLength       = HIDInterfaceInfo->State.HIDReportSize,
+		};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+	if ((ErrorCode = USB_Host_SendControlRequest(HIDReportData)) != HOST_SENDCONTROL_Successful)
+	  return ErrorCode;
+
+	if (HIDInterfaceInfo->State.UsingBootProtocol)
+	{
+		USB_ControlRequest = (USB_Request_Header_t)
+			{
+				.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
+				.bRequest      = HID_REQ_SetProtocol,
+				.wValue        = 1,
+				.wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
+				.wLength       = 0,
+			};
+
+		if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
+		  return ErrorCode;
+
+		HIDInterfaceInfo->State.UsingBootProtocol = false;
+	}
+
+	if (HIDInterfaceInfo->Config.HIDParserData == NULL)
+	  return HID_ERROR_LOGICAL;
+
+	if ((ErrorCode = USB_ProcessHIDReport(HIDReportData, HIDInterfaceInfo->State.HIDReportSize,
+	                                      HIDInterfaceInfo->Config.HIDParserData)) != HID_PARSE_Successful)
+	{
+		return HID_ERROR_LOGICAL | ErrorCode;
+	}
+
+	uint16_t LargestReportSizeBits = HIDInterfaceInfo->Config.HIDParserData->LargestReportSizeBits;
+	HIDInterfaceInfo->State.LargestReportSize = (LargestReportSizeBits >> 3) + ((LargestReportSizeBits & 0x07) != 0);
+
+	return 0;
+}
+#endif
+
+#endif
+