Add more const-ness to the stream endpoint/pipe functions where possible.

[pub/USBasp.git] / LUFA / Drivers / USB / Class / Host / Printer.c

diff --git a/LUFA/Drivers/USB/Class/Host/Printer.c b/LUFA/Drivers/USB/Class/Host/Printer.c
index 9229922..a086a53 100644 (file)
--- a/LUFA/Drivers/USB/Class/Host/Printer.c
+++ b/LUFA/Drivers/USB/Class/Host/Printer.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2010.
+     Copyright (C) Dean Camera, 2011.
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2011  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
@@ -287,8 +287,7 @@ uint8_t PRNT_Host_SendByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
 }
 
 uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
-                             void* Buffer,
-                             const uint16_t Length)
+                             void* String)
 {
        uint8_t ErrorCode;
 
@@ -298,7 +297,31 @@ uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
        Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber);
        Pipe_Unfreeze();
 
-       if ((ErrorCode = Pipe_Write_Stream_LE(Buffer, Length, NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
+       if ((ErrorCode = Pipe_Write_Stream_LE(String, strlen(String), NULL)) != PIPE_RWSTREAM_NoError)
+         return ErrorCode;
+
+       Pipe_ClearOUT();
+
+       ErrorCode = Pipe_WaitUntilReady();
+
+       Pipe_Freeze();
+
+       return ErrorCode;
+}
+
+uint8_t PRNT_Host_SendData(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
+                           void* Buffer,
+                           const uint16_t Length)
+{
+       uint8_t ErrorCode;
+
+       if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive))
+         return PIPE_RWSTREAM_DeviceDisconnected;
+
+       Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber);
+       Pipe_Unfreeze();
+
+       if ((ErrorCode = Pipe_Write_Stream_LE(Buffer, Length, NULL)) != PIPE_RWSTREAM_NoError)
          return ErrorCode;
 
        Pipe_ClearOUT();