Updated all host mode demos and projects to use the EVENT_USB_Host_DeviceEnumerationComplete() event callback for device configuration instead of manual host state machine manipulations in the main application task.

Added new USB_Host_ConfigurationNumber global variable to indicate the selected configuration in an attached device.

Renamed global state variables that are specific to a certain USB mode to clearly indicate which mode the variable relates to, by changing the USB_* prefix to USB_Device_* or USB_Host_*.

Removed the HOST_STATE_WaitForDeviceRemoval and HOST_STATE_Suspended host state machine states, as these are no longer required.

Altered the USB_Host_SetDeviceConfiguration() function to update the new USB_Host_ConfigurationNumber global as required.

Moved out the Host mode standard request convenience/helper functions from the architecture specific Host driver files to the architecture agnostic HostStandardReq.c driver file.

1 files changed, 94 insertions, 1 deletions

diff --git a/LUFA/Drivers/USB/Core/HostStandardReq.c b/LUFA/Drivers/USB/Core/HostStandardReq.c
index 412ac8968..a9451ff16 100644
--- a/LUFA/Drivers/USB/Core/HostStandardReq.c
+++ b/LUFA/Drivers/USB/Core/HostStandardReq.c
@@ -36,6 +36,8 @@
 #define  __INCLUDE_FROM_HOSTSTDREQ_C
 #include "HostStandardReq.h"
 
+uint8_t USB_Host_ConfigurationNumber;
+
 uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
 {
 	uint8_t* DataStream   = (uint8_t*)BufferPtr;
@@ -119,7 +121,7 @@ uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
 				if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
 				  goto End_Of_Control_Send;
 
-				while (DataLen && (Pipe_BytesInPipe() < USB_ControlPipeSize))
+				while (DataLen && (Pipe_BytesInPipe() < USB_Host_ControlPipeSize))
 				{
 					Pipe_Write_8(*(DataStream++));
 					DataLen--;
@@ -178,5 +180,96 @@ static uint8_t USB_Host_WaitForIOS(const uint8_t WaitType)
 	return HOST_SENDCONTROL_Successful;
 }
 
+uint8_t USB_Host_SetDeviceConfiguration(const uint8_t ConfigNumber)
+{
+	uint8_t ErrorCode;
+
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),
+			.bRequest      = REQ_SetConfiguration,
+			.wValue        = ConfigNumber,
+			.wIndex        = 0,
+			.wLength       = 0,
+		};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+	
+	if ((ErrorCode = USB_Host_SendControlRequest(NULL)) == HOST_SENDCONTROL_Successful)
+	{
+		USB_Host_ConfigurationNumber = ConfigNumber;
+		USB_HostState                = (ConfigNumber) ? HOST_STATE_Configured : HOST_STATE_Addressed;
+	}
+
+	return ErrorCode;
+}
+
+uint8_t USB_Host_GetDeviceDescriptor(void* const DeviceDescriptorPtr)
+{
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
+			.bRequest      = REQ_GetDescriptor,
+			.wValue        = (DTYPE_Device << 8),
+			.wIndex        = 0,
+			.wLength       = sizeof(USB_Descriptor_Device_t),
+		};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+	return USB_Host_SendControlRequest(DeviceDescriptorPtr);
+}
+
+uint8_t USB_Host_GetDeviceStringDescriptor(const uint8_t Index,
+                                           void* const Buffer,
+                                           const uint8_t BufferLength)
+{
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
+			.bRequest      = REQ_GetDescriptor,
+			.wValue        = (DTYPE_String << 8) | Index,
+			.wIndex        = 0,
+			.wLength       = BufferLength,
+		};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+	return USB_Host_SendControlRequest(Buffer);
+}
+
+uint8_t USB_Host_ClearPipeStall(const uint8_t EndpointNum)
+{
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_ENDPOINT),
+			.bRequest      = REQ_ClearFeature,
+			.wValue        = FEATURE_SEL_EndpointHalt,
+			.wIndex        = EndpointNum,
+			.wLength       = 0,
+		};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+	return USB_Host_SendControlRequest(NULL);
+}
+
+uint8_t USB_Host_SetInterfaceAltSetting(const uint8_t InterfaceIndex,
+                                        const uint8_t AltSetting)
+{
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_INTERFACE),
+			.bRequest      = REQ_SetInterface,
+			.wValue        = AltSetting,
+			.wIndex        = InterfaceIndex,
+			.wLength       = 0,
+		};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+	return USB_Host_SendControlRequest(NULL);
+}
+
 #endif