Seperated out parts of the PrinterHost incomplete demo into a seperate Lib subdirectory.

Fixed Host mode to Device mode UID change not causing a USB Disconnect event when a device was connected.

Demos/Host/Incomplete/PrinterHost/Lib/PrinterCommands.c

+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2009.
+              
+  dean [at] fourwalledcubicle [dot] com
+      www.fourwalledcubicle.com
+*/
+
+/*
+  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, and distribute this software
+  and its documentation for any purpose and without fee is hereby
+  granted, 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 disclaim 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.
+*/
+
+#include "PrinterCommands.h"
+
+uint8_t Printer_GetDeviceID(Device_ID_String_t* DeviceIDString)
+{
+	uint8_t ErrorCode = HOST_SENDCONTROL_Successful;
+
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
+			bRequest:      GET_DEVICE_ID,
+			wValue:        0,
+			wIndex:        0,
+			wLength:       sizeof(DeviceIDString),
+		};
+
+	if ((ErrorCode == USB_Host_SendControlRequest(DeviceIDString)) != HOST_SENDCONTROL_Successful)
+	  return ErrorCode;
+	  
+	DeviceIDString->Length = SwapEndian_16(DeviceIDString->Length);
+	
+	/* Protect against overflow for the null terminator if the string length is equal to or larger than the buffer */
+	if (DeviceIDString->Length >= sizeof(DeviceIDString->String))
+	  DeviceIDString->Length = sizeof(DeviceIDString->String) - 1;
+	
+	DeviceIDString->String[DeviceIDString->Length] = 0x00;
+	
+	return HOST_SENDCONTROL_Successful;
+}
+
+uint8_t Printer_GetPortStatus(uint8_t* PortStatus)
+{
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
+			bRequest:      GET_PORT_STATUS,
+			wValue:        0,
+			wIndex:        0,
+			wLength:       sizeof(uint8_t),
+		};
+
+	return USB_Host_SendControlRequest(PortStatus);
+}
+
+uint8_t Printer_SoftReset(void)
+{
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			bmRequestType: (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
+			bRequest:      SOFT_RESET,
+			wValue:        0,
+			wIndex:        0,
+			wLength:       0,
+		};
+
+	return USB_Host_SendControlRequest(NULL);
+}

Demos/Host/Incomplete/PrinterHost/Lib/PrinterCommands.h

+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2009.
+              
+  dean [at] fourwalledcubicle [dot] com
+      www.fourwalledcubicle.com
+*/
+
+/*
+  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, and distribute this software
+  and its documentation for any purpose and without fee is hereby
+  granted, 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 disclaim 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.
+*/
+
+#ifndef _PRINTER_COMMANDS_H_
+#define _PRINTER_COMMANDS_H_
+
+	/* Includes: */
+		#include <avr/io.h>
+
+		#include <LUFA/Drivers/USB/USB.h>
+
+	/* Macros: */
+		#define PROTOCOL_UNIDIRECTIONAL      0x01
+		#define PROTOCOL_BIDIRECTIONAL       0x02
+		#define PROTOCOL_IEEE1284            0x03
+		
+		#define GET_DEVICE_ID                0
+		#define GET_PORT_STATUS              1
+		#define SOFT_RESET                   2
+
+	/* Type Defines: */
+		typedef struct
+		{
+			uint16_t Length;
+			uint8_t  String[128];
+		} Device_ID_String_t;
+		
+	/* Function Prototypes: */
+		uint8_t Printer_GetDeviceID(Device_ID_String_t* DeviceIDString);
+		uint8_t Printer_GetPortStatus(uint8_t* PortStatus);
+		uint8_t Printer_SoftReset(void);
+	
+#endif

Demos/Host/Incomplete/PrinterHost/PrinterHost.c

@@ -36,7 +36,6 @@
 
 #include "PrinterHost.h"
 
-/* Globals */
 uint8_t PrinterProtocol;
 
 
@@ -115,34 +114,10 @@ void USB_Printer_Host(void)
 	switch (USB_HostState)
 	{
 		case HOST_STATE_Addressed:
-			/* Standard request to set the device configuration to configuration 1 */
-			USB_ControlRequest = (USB_Request_Header_t)
-				{
-					bmRequestType: (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),
-					bRequest:      REQ_SetConfiguration,
-					wValue:        1,
-					wIndex:        0,
-					wLength:       0,
-				};
-				
-			/* Send the request, display error and wait for device detatch if request fails */
-			if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
-			{
-				puts_P(PSTR("Control Error (Set Configuration).\r\n"));
-				printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode);
-
-				/* Indicate error via status LEDs */
-				LEDs_SetAllLEDs(LEDS_LED1);
-
-				/* Wait until USB device disconnected */
-				while (USB_IsConnected);
-				break;
-			}
-				
-			USB_HostState = HOST_STATE_Configured;
-			break;
-		case HOST_STATE_Configured:
 			puts_P(PSTR("Getting Config Data.\r\n"));
+			
+			/* Select the control pipe for the request transfer */
+			Pipe_SelectPipe(PIPE_CONTROLPIPE);			
 		
 			/* Get and process the configuration descriptor data */
 			if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
@@ -161,16 +136,38 @@ void USB_Printer_Host(void)
 				while (USB_IsConnected);
 				break;
 			}
+				
+			/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
+			if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
+			{
+				puts_P(PSTR("Control Error (Set Configuration).\r\n"));
+				printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode);
+
+				/* Indicate error via status LEDs */
+				LEDs_SetAllLEDs(LEDS_LED1);
+
+				/* Wait until USB device disconnected */
+				while (USB_IsConnected);
+				break;
+			}
 
+			USB_HostState = HOST_STATE_Configured;
+			break;
+		case HOST_STATE_Configured:
 			puts_P(PSTR("Printer Enumerated.\r\n"));
-				
+			
 			USB_HostState = HOST_STATE_Ready;
 			break;
 		case HOST_STATE_Ready:
 			/* Indicate device busy via the status LEDs */
 			LEDs_SetAllLEDs(LEDS_LED3 | LEDS_LED4);
 		
-			if (!(GetDeviceID()))
+			printf_P(PSTR("Printer Protocol: %d\r\n"), PrinterProtocol);
+		
+			puts_P(PSTR("Retrieving Device ID...\r\n"));
+		
+			Device_ID_String_t DeviceIDString;
+			if (Printer_GetDeviceID(&DeviceIDString) != HOST_SENDCONTROL_Successful)
 			{
 				/* Indicate error via status LEDs */
 				LEDs_SetAllLEDs(LEDS_LED1);
@@ -179,6 +176,8 @@ void USB_Printer_Host(void)
 				while (USB_IsConnected);
 				break;
 			}
+
+			printf_P(PSTR("Printer Device ID: %s\r\n"), DeviceIDString.String);
 		
 			/* Indicate device no longer busy */
 			LEDs_SetAllLEDs(LEDS_LED4);
@@ -189,31 +188,3 @@ void USB_Printer_Host(void)
 			break;
 	}
 }
-
-bool GetDeviceID(void)
-{
-	Device_ID_String_t DeviceIDString;
-
-	/* Request to retrieve the device ID string */
-	USB_ControlRequest = (USB_Request_Header_t)
-		{
-			bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
-			bRequest:      GET_DEVICE_ID,
-			wValue:        0,
-			wIndex:        0,
-			wLength:       sizeof(DeviceIDString),
-		};
-
-	printf("Error Code: %d", USB_Host_SendControlRequest(&DeviceIDString));
-
-	/* Send the request, display error and wait for device detatch if request fails */
-	if (USB_Host_SendControlRequest(&DeviceIDString) != HOST_SENDCONTROL_Successful)
-	  return false;
-
-	/* Reverse the order of the string length as it is sent in big-endian format */
-	DeviceIDString.Length = SwapEndian_16(DeviceIDString.Length);
-	
-	printf("%s", DeviceIDString.String);
-	
-	return true;
-}

Demos/Host/Incomplete/PrinterHost/PrinterHost.h

@@ -39,6 +39,7 @@
 		#include <stdio.h>
 
 		#include "ConfigDescriptor.h"
+		#include "Lib/PrinterCommands.h"
 
 		#include <LUFA/Version.h>
 		#include <LUFA/Drivers/Misc/TerminalCodes.h>
@@ -58,20 +59,7 @@
 
 		/** LED mask for the library LED driver, to indicate that an error has occurred in the USB interface. */
 		#define LEDMASK_USB_ERROR        (LEDS_LED1 | LEDS_LED3)
-
-		#define PROTOCOL_UNIDIRECTIONAL      0x01
-		#define PROTOCOL_BIDIRECTIONAL       0x02
-		#define PROTOCOL_IEEE1284            0x03
-		
-		#define GET_DEVICE_ID                0
-
-	/* Type Defines: */
-		typedef struct
-		{
-			uint16_t Length;
-			uint8_t  String[128];
-		} Device_ID_String_t;
-
+	
 	/* External Variables: */
 		extern uint8_t PrinterProtocol;
 	
@@ -86,6 +74,4 @@
 
 		void USB_Printer_Host(void);
 
-		bool GetDeviceID(void);
-
 #endif

Demos/Host/Incomplete/PrinterHost/makefile

@@ -132,6 +132,7 @@ LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"
 # List C source files here. (C dependencies are automatically generated.)
 SRC = $(TARGET).c                                                 \
 	  ConfigDescriptor.c                                          \
+	  Lib/PrinterCommands.c                                       \
 	  $(LUFA_PATH)/LUFA/Drivers/Peripheral/SerialStream.c         \
 	  $(LUFA_PATH)/LUFA/Drivers/Peripheral/Serial.c               \
 	  $(LUFA_PATH)/LUFA/Drivers/USB/LowLevel/DevChapter9.c        \

LUFA/Drivers/USB/HighLevel/USBInterrupt.c

@@ -243,8 +243,8 @@ ISR(USB_GEN_vect, ISR_BLOCK)
 		{
 			if (USB_CurrentMode == USB_MODE_HOST)
 			  EVENT_USB_DeviceUnattached();
-			else
-			  EVENT_USB_Disconnect();
+
+			EVENT_USB_Disconnect();
 		}
 
 		EVENT_USB_UIDChange();

LUFA/Drivers/USB/HighLevel/USBTask.c

@@ -39,7 +39,7 @@ volatile bool        USB_IsInitialized;
 USB_Request_Header_t USB_ControlRequest;
 
 #if defined(USB_CAN_BE_HOST)
-volatile uint8_t   USB_HostState;
+volatile uint8_t     USB_HostState;
 #endif
 
 void USB_USBTask(void)

LUFA/Drivers/USB/LowLevel/HostChapter9.c

@@ -58,7 +58,7 @@ uint8_t USB_Host_SendControlRequest(void* BufferPtr)
 
 	Pipe_ClearSETUP();
 	
-	if ((ReturnStatus = USB_Host_Wait_For_Setup_IOS(USB_HOST_WAITFOR_SetupSent)))
+	if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_SetupSent)))
 	  goto End_Of_Control_Send;
 
 	Pipe_Freeze();
@@ -76,7 +76,7 @@ uint8_t USB_Host_SendControlRequest(void* BufferPtr)
 			{
 				Pipe_Unfreeze();
 
-				if ((ReturnStatus = USB_Host_Wait_For_Setup_IOS(USB_HOST_WAITFOR_InReceived)))
+				if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_InReceived)))
 				  goto End_Of_Control_Send;
 							
 				if (!(Pipe_BytesInPipe()))
@@ -96,12 +96,12 @@ uint8_t USB_Host_SendControlRequest(void* BufferPtr)
 		Pipe_SetToken(PIPE_TOKEN_OUT);
 		Pipe_Unfreeze();
 		
-		if ((ReturnStatus = USB_Host_Wait_For_Setup_IOS(USB_HOST_WAITFOR_OutReady)))
+		if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)))
 		  goto End_Of_Control_Send;
 
 		Pipe_ClearOUT();
 
-		if ((ReturnStatus = USB_Host_Wait_For_Setup_IOS(USB_HOST_WAITFOR_OutReady)))
+		if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)))
 		  goto End_Of_Control_Send;
 	}
 	else
@@ -113,7 +113,7 @@ uint8_t USB_Host_SendControlRequest(void* BufferPtr)
 
 			while (DataLen)
 			{
-				if ((ReturnStatus = USB_Host_Wait_For_Setup_IOS(USB_HOST_WAITFOR_OutReady)))
+				if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)))
 				  goto End_Of_Control_Send;
 
 				while (DataLen && (Pipe_BytesInPipe() < USB_ControlPipeSize))
@@ -125,7 +125,7 @@ uint8_t USB_Host_SendControlRequest(void* BufferPtr)
 				Pipe_ClearOUT();
 			}
 
-			if ((ReturnStatus = USB_Host_Wait_For_Setup_IOS(USB_HOST_WAITFOR_OutReady)))
+			if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)))
 			  goto End_Of_Control_Send;
 
 			Pipe_Freeze();
@@ -134,7 +134,7 @@ uint8_t USB_Host_SendControlRequest(void* BufferPtr)
 		Pipe_SetToken(PIPE_TOKEN_IN);
 		Pipe_Unfreeze();
 
-		if ((ReturnStatus = USB_Host_Wait_For_Setup_IOS(USB_HOST_WAITFOR_InReceived)))
+		if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_InReceived)))
 		  goto End_Of_Control_Send;
 
 		Pipe_ClearIN();
@@ -151,7 +151,7 @@ End_Of_Control_Send:
 	return ReturnStatus;
 }
 
-static uint8_t USB_Host_Wait_For_Setup_IOS(const uint8_t WaitType)
+static uint8_t USB_Host_WaitForIOS(const uint8_t WaitType)
 {
 	#if (USB_HOST_TIMEOUT_MS < 0xFF)
 	uint8_t  TimeoutCounter = USB_HOST_TIMEOUT_MS;	

LUFA/Drivers/USB/LowLevel/HostChapter9.h

@@ -90,7 +90,7 @@
 	
 		/* Function Prototypes: */
 			#if defined(INCLUDE_FROM_HOSTCHAPTER9_C)
-				static uint8_t USB_Host_Wait_For_Setup_IOS(const uint8_t WaitType);
+				static uint8_t USB_Host_WaitForIOS(const uint8_t WaitType);
 			#endif
 	#endif
 

LUFA/ManPages/ChangeLog.txt

@@ -49,6 +49,7 @@
   *  - Fixed MassStorage demo not clearing the reset flag when a Mass Storage Reset is issued while not processing a command
   *  - Fixed USB_Host_SendControlRequest() not re-suspending the USB bus when initial device ready-wait fails
   *  - Fixed USB Pad regulator not being disabled on some AVR models when the USB_OPT_REG_DISABLED option is used
+  *  - Fixed Host mode to Device mode UID change not causing a USB Disconnect event when a device was connected
   *
   *
   *  \section Sec_ChangeLog090605 Version 090605

LUFA/ManPages/ConfiguringApps.txt

@@ -24,7 +24,9 @@
  *    - <b>BOARD</b>, the target board hardware
  *    - <b>F_CLOCK</b>, the target raw master clock frequency, before any prescaling is performed
  *    - <b>F_CPU</b>, the target AVR CPU master clock frequency, after any prescaling
- *    - <b>CDEFS</b>, the C preprocessor defines which configure the source code
+ *    - <b>CDEFS</b>, the C preprocessor defines which configure options the source code
+ *    - <b>LUFA_PATH</b>, the path to the LUFA library source code
+ *    - <b>LUFA_OPTS</b>, the compile time LUFA options which configure the library features
  *
  *  These values should be changed to reflect the build hardware.
  *
@@ -63,12 +65,23 @@
  *  library components will occur.
  *
  *  \section Sec_CDEFS The CDEFS Parameter
+ *  Many applications have features which can be controlled by the defining of specially named preprocessor tokens at the point of compilation - for example,
+ *  an application might use a compile time token to turn on or off optional or mutually exclusive portions of code. Preprocessor tokens can be
+ *  defined here by listing each one with the -D command line switch, and each token can optionally be defined to a specific value. When defined in the
+ *  project makefile, these behave as if they were defined in every source file via a normal preprocessor define statement.
+ *
  *  Most applications will actually have multiple CDEF lines, which are concatenated together with the "+=" operator. This ensures that large
  *  numbers of configuration options remain readable by splitting up groups of options into separate lines.
  *
- *  Normally, these options do not need to be altered to allow an application to compile and run correctly on a different board or AVR to the
- *  current configuration - if the options are incorrect, then the demo is most likely incompatible with the chosen USB AVR model and cannot be
- *  made to function through the altering of the makefile settings alone (or at all). Settings such as the USB mode (device, host or both), the USB
- *  interface speed (Low or Full speed) and other LUFA configuration options can be set here - refer to the library documentation for details on the
- *  configuration parameters.
+ *  \section Sec_LUFA_PATH The LUFA_PATH Parameter
+ *  As each LUFA program requires the LUFA library source code to compile correctly, the application must know where the LUFA library is located. This
+ *  value specifies the path to the LUFA library base relative to the path of the project makefile.
+ *
+ *  \section Sec_LUFA_OPTS The LUFA_OPTS Parameter
+ *  This value is similar to the CDEFS parameter listed elsewhere -- indeed, it is simply a convenient place to group LUFA related tokens away from the
+ *  application's compile time tokens. Normally, these options do not need to be altered to allow an application to compile and run correctly on a
+ *  different board or AVR to the current configuration - if the options are incorrect, then the demo is most likely incompatible with the chosen USB AVR
+ *  model and cannot be made to function through the altering of the makefile settings alone (or at all). Settings such as the USB mode (device, host or both),
+ *  the USB interface speed (Low or Full speed) and other LUFA configuration options can be set here - see \ref Page_TokenSummary documentation for details
+ *  on the available LUFA compile time configuration options.
  */
\ No newline at end of file

LUFA/ManPages/FutureChanges.txt

@@ -21,11 +21,11 @@
   *  - Add standardized descriptor names to device and host class driver structures
   *  - Remove USE_NONSTANDARD_DESCRIPTOR_NAMES, make all typedefs unions to allow either naming scheme to be used
   *  - Add in INTERRUPT_CONTROL_PIPE to use HSOFI to trigger calls to the host state machine
-  *  - Remove FAST_STREAM_TRANSFERS as they have little effect
   *  - Make Suspend host state suspend USB bus frames
   *  - Add in Stream functions for PROGMEM, EEPROM -- move to templated system
   *  - Debug mode for pipe/endpoint calls
   *  - Test and document new FAST_STREAM_TRANSFERS compile time option
+  *  - Demo hardware compatibility table/list
   *
   *  <b>Targeted for Future Releases:</b>
   *  - Remake AVRStudio project files