Add extra LUFA TAR archive export exclusions.
[pub/USBasp.git] / Demos / Host / ClassDriver / VirtualSerialHost / VirtualSerialHost.c
index 6bb43bb..631925e 100644 (file)
@@ -1,13 +1,13 @@
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2010.
+     Copyright (C) Dean Camera, 2012.
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2012  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
@@ -55,6 +55,7 @@ USB_ClassInfo_CDC_Host_t VirtualSerial_CDC_Interface =
                        },
        };
 
+
 /** Main program entry point. This routine configures the hardware required by the application, then
  *  enters a loop to run the application tasks in sequence.
  */
@@ -69,55 +70,7 @@ int main(void)
 
        for (;;)
        {
-               switch (USB_HostState)
-               {
-                       case HOST_STATE_Addressed:
-                               LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
-
-                               uint16_t ConfigDescriptorSize;
-                               uint8_t  ConfigDescriptorData[512];
-
-                               if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
-                                                                      sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
-                               {
-                                       puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
-                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                                       break;
-                               }
-
-                               if (CDC_Host_ConfigurePipes(&VirtualSerial_CDC_Interface,
-                                                           ConfigDescriptorSize, ConfigDescriptorData) != CDC_ENUMERROR_NoError)
-                               {
-                                       puts_P(PSTR("Attached Device Not a Valid CDC Class Device.\r\n"));
-                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                                       break;
-                               }
-
-                               if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
-                               {
-                                       puts_P(PSTR("Error Setting Device Configuration.\r\n"));
-                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                                       break;
-                               }
-
-                               puts_P(PSTR("CDC Device Enumerated.\r\n"));
-                               LEDs_SetAllLEDs(LEDMASK_USB_READY);
-                               USB_HostState = HOST_STATE_Configured;
-                               break;
-                       case HOST_STATE_Configured:
-                               if (CDC_Host_BytesReceived(&VirtualSerial_CDC_Interface))
-                               {
-                                       /* Echo received bytes from the attached device through the USART */
-                                       int16_t ReceivedByte = CDC_Host_ReceiveByte(&VirtualSerial_CDC_Interface);
-                                       if (!(ReceivedByte < 0))
-                                         putchar(ReceivedByte);
-                               }
-
-                               break;
-               }
+               CDCHost_Task();
 
                CDC_Host_USBTask(&VirtualSerial_CDC_Interface);
                USB_USBTask();
@@ -135,9 +88,29 @@ void SetupHardware(void)
        clock_prescale_set(clock_div_1);
 
        /* Hardware Initialization */
-       SerialStream_Init(9600, false);
+       Serial_Init(9600, false);
        LEDs_Init();
        USB_Init();
+
+       /* Create a stdio stream for the serial port for stdin and stdout */
+       Serial_CreateStream(NULL);
+}
+
+/** Task to manage an enumerated USB CDC device once connected, to print received data
+ *  from the device to the serial port.
+ */
+void CDCHost_Task(void)
+{
+       if (USB_HostState != HOST_STATE_Configured)
+         return;
+
+       if (CDC_Host_BytesReceived(&VirtualSerial_CDC_Interface))
+       {
+               /* Echo received bytes from the attached device through the USART */
+               int16_t ReceivedByte = CDC_Host_ReceiveByte(&VirtualSerial_CDC_Interface);
+               if (!(ReceivedByte < 0))
+                 putchar(ReceivedByte);
+       }
 }
 
 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
@@ -163,13 +136,54 @@ void EVENT_USB_Host_DeviceUnattached(void)
  */
 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 {
+       LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+
+       uint16_t ConfigDescriptorSize;
+       uint8_t  ConfigDescriptorData[512];
+
+       if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
+                                              sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
+       {
+               puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               return;
+       }
+
+       if (CDC_Host_ConfigurePipes(&VirtualSerial_CDC_Interface,
+                                   ConfigDescriptorSize, ConfigDescriptorData) != CDC_ENUMERROR_NoError)
+       {
+               puts_P(PSTR("Attached Device Not a Valid CDC Class Device.\r\n"));
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               return;
+       }
+
+       if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
+       {
+               puts_P(PSTR("Error Setting Device Configuration.\r\n"));
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               return;
+       }
+       
+       VirtualSerial_CDC_Interface.State.LineEncoding.BaudRateBPS = 9600;
+       VirtualSerial_CDC_Interface.State.LineEncoding.CharFormat  = CDC_LINEENCODING_OneStopBit;
+       VirtualSerial_CDC_Interface.State.LineEncoding.ParityType  = CDC_PARITY_None;
+       VirtualSerial_CDC_Interface.State.LineEncoding.DataBits    = 8;
+       
+       if (CDC_Host_SetLineEncoding(&VirtualSerial_CDC_Interface))
+       {
+               puts_P(PSTR("Error Setting Device Line Encoding.\r\n"));
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               return; 
+       }
+
+       puts_P(PSTR("CDC Device Enumerated.\r\n"));
        LEDs_SetAllLEDs(LEDMASK_USB_READY);
 }
 
 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 {
-       USB_ShutDown();
+       USB_Disable();
 
        printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
                                 " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);