X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/c1782ac024a42c06680f511c939e653aacdb411d..03ee87b35abdb8b92e8b55ec040fa943f9a6786c:/LUFA/Drivers/USB/Class/Device/CDC.c?ds=sidebyside

diff --git a/LUFA/Drivers/USB/Class/Device/CDC.c b/LUFA/Drivers/USB/Class/Device/CDC.c
index d0cb29ecf..16bc01549 100644
--- a/LUFA/Drivers/USB/Class/Device/CDC.c
+++ b/LUFA/Drivers/USB/Class/Device/CDC.c
@@ -1,21 +1,21 @@
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2009.
+     Copyright (C) Dean Camera, 2010.
               
   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
+  Copyright 2010  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 disclaim all warranties with regard to this
@@ -129,7 +129,7 @@ void CDC_Device_USBTask(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo)
 uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, char* const Data, const uint16_t Length)
 {
 	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
-	  return ENDPOINT_READYWAIT_NoError;
+	  return ENDPOINT_RWSTREAM_DeviceDisconnected;
 	
 	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber);
 	return Endpoint_Write_Stream_LE(Data, Length, NO_STREAM_CALLBACK);
@@ -138,7 +138,7 @@ uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo
 uint8_t CDC_Device_SendByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, const uint8_t Data)
 {
 	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
-	  return ENDPOINT_READYWAIT_NoError;
+	  return ENDPOINT_RWSTREAM_DeviceDisconnected;
 
 	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber);
 
@@ -159,7 +159,7 @@ uint8_t CDC_Device_SendByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
 uint8_t CDC_Device_Flush(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
 {
 	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
-	  return ENDPOINT_READYWAIT_NoError;
+	  return ENDPOINT_RWSTREAM_DeviceDisconnected;
 
 	uint8_t ErrorCode;
 
@@ -240,16 +240,35 @@ void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE*
 	fdev_set_udata(Stream, CDCInterfaceInfo);
 }
 
+void CDC_Device_CreateBlockingStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream)
+{
+	*Stream = (FILE)FDEV_SETUP_STREAM(CDC_Device_putchar, CDC_Device_getchar_Blocking, _FDEV_SETUP_RW);
+	fdev_set_udata(Stream, CDCInterfaceInfo);
+}
+
 static int CDC_Device_putchar(char c, FILE* Stream)
 {
-	CDC_Device_SendByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream), c);
-	return 0;
+	return CDC_Device_SendByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream), c) ? _FDEV_ERR : 0;
 }
 
 static int CDC_Device_getchar(FILE* Stream)
 {
 	if (!(CDC_Device_BytesReceived((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream))))
-	  return -1;
+	  return _FDEV_EOF;
+
+	return CDC_Device_ReceiveByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));
+}
+
+static int CDC_Device_getchar_Blocking(FILE* Stream)
+{
+	while (!(CDC_Device_BytesReceived((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream))))
+	{
+		if (USB_DeviceState == DEVICE_STATE_Unattached)
+		  return _FDEV_EOF;
+	
+		CDC_Device_USBTask((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));
+		USB_USBTask();
+	}
 
 	return CDC_Device_ReceiveByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));
 }