X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/18f7cd3325418585c1d32426456379356247226d..8ba51f090f7cafb36e1108cc58e68f5d71bc13c0:/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c

diff --git a/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c b/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c
index 4c88bb4f2..a9f41ba64 100644
--- a/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c
+++ b/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c
@@ -30,7 +30,7 @@
 
 /** \file
  *
- *  Printer Device commands, to send/recieve data to and from an attached USB
+ *  Printer Device commands, to send/receive data to and from an attached USB
  *  printer, and to send and receive Printer Class control requests.
  */
 
@@ -39,22 +39,27 @@
 /** Sends the given data directly to the printer via the data endpoints, for the sending of print commands in printer
  *  languages accepted by the attached printer (e.g. PCL).
  *
- *  \param[in] PrinterCommands  Pointer to a structure containing the commands and length of the data to send
+ *  \param[in] PrinterCommands  Pointer to the data to send to the attached printer
+ *  \param[in] CommandSize  Size of the data to send to the attached printer
  *
  *  \return A value from the Pipe_Stream_RW_ErrorCodes_t enum
  */
-uint8_t Printer_SendData(Printer_Data_t* PrinterCommands)
+uint8_t Printer_SendData(void* PrinterCommands, uint16_t CommandSize)
 {
 	uint8_t ErrorCode;
 
 	Pipe_SelectPipe(PRINTER_DATA_OUT_PIPE);
 	Pipe_Unfreeze();
 	
-	if ((ErrorCode = Pipe_Write_Stream_LE(PrinterCommands->Data, PrinterCommands->Length)) != PIPE_RWSTREAM_NoError)
+	if ((ErrorCode = Pipe_Write_Stream_LE(PrinterCommands, CommandSize)) != PIPE_RWSTREAM_NoError)
 	  return ErrorCode;
 
 	Pipe_ClearOUT();
-	while (!(Pipe_IsOUTReady()));
+	while (!(Pipe_IsOUTReady()))
+	{
+		if (USB_HostState == HOST_STATE_Unattached)
+		  return PIPE_RWSTREAM_DeviceDisconnected;
+	}
 	
 	Pipe_Freeze();
 
@@ -72,12 +77,12 @@ uint8_t Printer_SendData(Printer_Data_t* PrinterCommands)
 uint8_t Printer_GetDeviceID(char* DeviceIDString, uint16_t BufferSize)
 {
 	uint8_t  ErrorCode = HOST_SENDCONTROL_Successful;
-	uint16_t DeviceIDStringLength;
+	uint16_t DeviceIDStringLength = 0;
 
 	USB_ControlRequest = (USB_Request_Header_t)
 		{
 			bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
-			bRequest:      GET_DEVICE_ID,
+			bRequest:      REQ_GetDeviceID,
 			wValue:        0,
 			wIndex:        0,
 			wLength:       sizeof(DeviceIDStringLength),
@@ -87,6 +92,12 @@ uint8_t Printer_GetDeviceID(char* DeviceIDString, uint16_t BufferSize)
 
 	if ((ErrorCode = USB_Host_SendControlRequest(&DeviceIDStringLength)) != HOST_SENDCONTROL_Successful)
 	  return ErrorCode;
+	  
+	if (!(DeviceIDStringLength))
+	{
+		DeviceIDString[0] = 0x00;
+		return HOST_SENDCONTROL_Successful;
+	}
 	
 	DeviceIDStringLength = SwapEndian_16(DeviceIDStringLength);
 
@@ -118,7 +129,7 @@ uint8_t Printer_GetPortStatus(uint8_t* PortStatus)
 	USB_ControlRequest = (USB_Request_Header_t)
 		{
 			bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
-			bRequest:      GET_PORT_STATUS,
+			bRequest:      REQ_GetPortStatus,
 			wValue:        0,
 			wIndex:        0,
 			wLength:       sizeof(uint8_t),
@@ -139,7 +150,7 @@ uint8_t Printer_SoftReset(void)
 	USB_ControlRequest = (USB_Request_Header_t)
 		{
 			bmRequestType: (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
-			bRequest:      SOFT_RESET,
+			bRequest:      REQ_SoftReset,
 			wValue:        0,
 			wIndex:        0,
 			wLength:       0,