Minor documentation fixes.

[pub/USBasp.git] / Demos / Host / ClassDriver / VirtualSerialHost / VirtualSerialHost.c

diff --git a/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c b/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c
index 543e098..72d7e58 100644 (file)
--- a/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c
+++ b/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c
@@ -1,21 +1,21 @@
 /*
              LUFA Library
 /*
              LUFA Library

-     Copyright (C) Dean Camera, 2010.
-              
+     Copyright (C) Dean Camera, 2011.
+

   dean [at] fourwalledcubicle [dot] com
   dean [at] fourwalledcubicle [dot] com

-      www.fourwalledcubicle.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 
+  Permission to use, copy, modify, distribute, and sell this

   software and its documentation for any purpose is hereby granted
   software and its documentation for any purpose is hereby granted

-  without fee, provided that the above copyright notice appear in 
+  without fee, provided that the above copyright notice appear in

   all copies and that both that the copyright notice and this
   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 
+  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
   software without specific, written prior permission.
 
   The author disclaim all warranties with regard to this


@@ -33,7 +33,7 @@
  *  Main source file for the VirtualSerialHost demo. This file contains the main tasks of
  *  the demo and is responsible for the initial application hardware configuration.
  */
  *  Main source file for the VirtualSerialHost demo. This file contains the main tasks of
  *  the demo and is responsible for the initial application hardware configuration.
  */

- 
+

 #include "VirtualSerialHost.h"
 
 /** LUFA CDC Class driver interface configuration and state information. This structure is
 #include "VirtualSerialHost.h"
 
 /** LUFA CDC Class driver interface configuration and state information. This structure is


@@ -54,14 +54,15 @@ USB_ClassInfo_CDC_Host_t VirtualSerial_CDC_Interface =
                                .NotificationPipeDoubleBank = false,
                        },
        };
                                .NotificationPipeDoubleBank = false,
                        },
        };

-       
+
+

 /** Main program entry point. This routine configures the hardware required by the application, then
  *  enters a loop to run the application tasks in sequence.
  */
 int main(void)
 {
        SetupHardware();
 /** Main program entry point. This routine configures the hardware required by the application, then
  *  enters a loop to run the application tasks in sequence.
  */
 int main(void)
 {
        SetupHardware();

-
+       

        puts_P(PSTR(ESC_FG_CYAN "CDC Host Demo running.\r\n" ESC_FG_WHITE));
 
        LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
        puts_P(PSTR(ESC_FG_CYAN "CDC Host Demo running.\r\n" ESC_FG_WHITE));
 
        LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);


@@ -69,57 +70,8 @@ int main(void)
 
        for (;;)
        {
 
        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 */
-                                       while (CDC_Host_BytesReceived(&VirtualSerial_CDC_Interface))
-                                         putchar(CDC_Host_ReceiveByte(&VirtualSerial_CDC_Interface));
-                                         
-                                       CDC_Host_Flush(&VirtualSerial_CDC_Interface);  
-                               }
-                       
-                               break;
-               }
-       
+               CDCHost_Task();
+

                CDC_Host_USBTask(&VirtualSerial_CDC_Interface);
                USB_USBTask();
        }
                CDC_Host_USBTask(&VirtualSerial_CDC_Interface);
                USB_USBTask();
        }


@@ -136,9 +88,29 @@ void SetupHardware(void)
        clock_prescale_set(clock_div_1);
 
        /* Hardware Initialization */
        clock_prescale_set(clock_div_1);
 
        /* Hardware Initialization */

-       SerialStream_Init(9600, false);
+       Serial_Init(9600, false);

        LEDs_Init();
        USB_Init();
        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
 }
 
 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and


@@ -164,13 +136,42 @@ void EVENT_USB_Host_DeviceUnattached(void)
  */
 void EVENT_USB_Host_DeviceEnumerationComplete(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;
+       }
+
+       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)
 {
        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);
 
        printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
                                 " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);


@@ -189,6 +190,7 @@ void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
                                 " -- Error Code %d\r\n"
                                 " -- Sub Error Code %d\r\n"
                                 " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
                                 " -- Error Code %d\r\n"
                                 " -- Sub Error Code %d\r\n"
                                 " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);

-       
+

        LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 }
        LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 }

+