Added new GenericHIDHost demo.

Corrections to the KeyboardHost and MouseHost demos' pipe handling to freeze and unfreeze the data pipes at the point of use.

1 files changed, 27 insertions, 11 deletions

diff --git a/Demos/Host/KeyboardHost/KeyboardHost.c b/Demos/Host/KeyboardHost/KeyboardHost.c
index 6249e5291..fe95c3493 100644
--- a/Demos/Host/KeyboardHost/KeyboardHost.c
+++ b/Demos/Host/KeyboardHost/KeyboardHost.c
@@ -183,13 +183,25 @@ void ReadNextReport(void)
 {

 	USB_KeyboardReport_Data_t KeyboardReport;

 		

-	/* Select the keyboard report data in pipe */

+	/* Select keyboard data pipe */

 	Pipe_SelectPipe(KEYBOARD_DATAPIPE);	

 

+	#if !defined(INTERRUPT_DATA_PIPE)

+	/* Unfreeze keyboard data pipe */

+	Pipe_Unfreeze();

+	#endif

+

 	/* Ensure pipe contains data and is ready to be read before continuing */

 	if (!(Pipe_ReadWriteAllowed()))

-	  return;

+	{

+		#if !defined(INTERRUPT_DATA_PIPE)

+		/* Refreeze keyboard data pipe */

+		Pipe_Freeze();

+		#endif

 

+		return;

+	}

+	

 	/* Read in keyboard report data */

 	Pipe_Read_Stream_LE(&KeyboardReport, sizeof(KeyboardReport));

 					

@@ -224,6 +236,11 @@ void ReadNextReport(void)
 		if (PressedKey)

 		  putchar(PressedKey);

 	}

+	

+	#if !defined(INTERRUPT_DATA_PIPE)

+	/* Refreeze keyboard data pipe */

+	Pipe_Freeze();

+	#endif

 }

 

 /** Task to set the configuration of the attached device after it has been enumerated, and to read and process

@@ -307,22 +324,21 @@ TASK(USB_Keyboard_Host)
 				break;

 			}

 

+			#if defined(INTERRUPT_DATA_PIPE)			

+			/* Select and unfreeze keyboard data pipe */

+			Pipe_SelectPipe(KEYBOARD_DATAPIPE);	

+			Pipe_Unfreeze();

+			#endif

+

 			puts_P(PSTR("Keyboard Enumerated.\r\n"));

-				

+

 			USB_HostState = HOST_STATE_Ready;

 			break;

 		#if !defined(INTERRUPT_DATA_PIPE)

 		case HOST_STATE_Ready:

-			/* Select and unfreeze keyboard data pipe */

-			Pipe_SelectPipe(KEYBOARD_DATAPIPE);	

-			Pipe_Unfreeze();

-

 			/* If a report has been received, read and process it */

-			if (Pipe_ReadWriteAllowed())

-			  ReadNextReport();

+			ReadNextReport();

 

-			/* Freeze keyboard data pipe */

-			Pipe_Freeze();

 			break;

 		#endif

 	}