Added PRNT_Host_SendByte() and PRNT_Host_Flush() functions to the Host mode Printer...

[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 04de87a..99977e5 100644 (file)
--- a/LUFA/Drivers/USB/Class/Host/Printer.c
+++ b/LUFA/Drivers/USB/Class/Host/Printer.c
@@ -125,6 +125,11 @@ static uint8_t DCOMP_PRNT_NextPRNTInterfaceEndpoint(void* CurrentDescriptor)
        return DESCRIPTOR_SEARCH_NotFound;
 }
 
+void PRNT_Host_USBTask(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo)
+{
+       PRNT_Host_Flush(PRNTInterfaceInfo);
+}
+
 uint8_t PRNT_Host_SetBidirectionalMode(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo)
 {
        if (PRNTInterfaceInfo->State.AlternateSetting)
@@ -182,6 +187,61 @@ uint8_t PRNT_Host_SoftReset(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo)
        return USB_Host_SendControlRequest(NULL);
 }
 
+uint8_t PRNT_Host_Flush(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo)
+{
+       if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive))
+         return PIPE_READYWAIT_DeviceDisconnected;
+         
+       uint8_t ErrorCode;
+
+       Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber);   
+       Pipe_Unfreeze();
+       
+       if (!(Pipe_BytesInPipe()))
+         return PIPE_READYWAIT_NoError;
+
+       bool BankFull = !(Pipe_IsReadWriteAllowed());
+
+       Pipe_ClearOUT();
+
+       if (BankFull)
+       {
+               if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
+                 return ErrorCode;
+
+               Pipe_ClearOUT();
+       }
+
+       Pipe_Freeze();
+       
+       return PIPE_READYWAIT_NoError;
+}
+
+uint8_t PRNT_Host_SendByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
+                           const uint8_t Data)
+{
+       if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive))
+         return PIPE_READYWAIT_DeviceDisconnected;
+         
+       uint8_t ErrorCode;
+
+       Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber);   
+       Pipe_Unfreeze();
+       
+       if (!(Pipe_IsReadWriteAllowed()))
+       {
+               Pipe_ClearOUT();
+
+               if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
+                 return ErrorCode;
+       }
+
+       Pipe_Write_Byte(Data);  
+       Pipe_Freeze();
+       
+       return PIPE_READYWAIT_NoError;
+}
+
 uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
                              void* Buffer,
                              const uint16_t Length)