Lower the size of the HID report endpoint from 16 bytes to 8 bytes, to allow for...

[pub/USBasp.git] / Demos / Host / LowLevel / VirtualSerialHost / ConfigDescriptor.c

diff --git a/Demos/Host/LowLevel/VirtualSerialHost/ConfigDescriptor.c b/Demos/Host/LowLevel/VirtualSerialHost/ConfigDescriptor.c
index 7d9fb38..74a3342 100644 (file)
--- a/Demos/Host/LowLevel/VirtualSerialHost/ConfigDescriptor.c
+++ b/Demos/Host/LowLevel/VirtualSerialHost/ConfigDescriptor.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


@@ -34,7 +34,7 @@
  *  needed to communication with an attached USB device. Descriptors are special  computer-readable structures
  *  which the host requests upon device enumeration, to determine the device's capabilities and functions.
  */
  *  needed to communication with an attached USB device. Descriptors are special  computer-readable structures
  *  which the host requests upon device enumeration, to determine the device's capabilities and functions.
  */

- 
+

 #include "ConfigDescriptor.h"
 
 /** Reads and processes an attached device's descriptors, to determine compatibility and pipe configurations. This
 #include "ConfigDescriptor.h"
 
 /** Reads and processes an attached device's descriptors, to determine compatibility and pipe configurations. This


@@ -50,7 +50,7 @@ uint8_t ProcessConfigurationDescriptor(void)
        uint8_t  ConfigDescriptorData[512];
        void*    CurrConfigLocation = ConfigDescriptorData;
        uint16_t CurrConfigBytesRem;
        uint8_t  ConfigDescriptorData[512];
        void*    CurrConfigLocation = ConfigDescriptorData;
        uint16_t CurrConfigBytesRem;

-       
+

        USB_Descriptor_Interface_t* CDCControlInterface  = NULL;
        USB_Descriptor_Endpoint_t*  DataINEndpoint       = NULL;
        USB_Descriptor_Endpoint_t*  DataOUTEndpoint      = NULL;
        USB_Descriptor_Interface_t* CDCControlInterface  = NULL;
        USB_Descriptor_Endpoint_t*  DataINEndpoint       = NULL;
        USB_Descriptor_Endpoint_t*  DataOUTEndpoint      = NULL;


@@ -85,7 +85,7 @@ uint8_t ProcessConfigurationDescriptor(void)
                                {
                                        /* Descriptor not found, error out */
                                        return NoCompatibleInterfaceFound;
                                {
                                        /* Descriptor not found, error out */
                                        return NoCompatibleInterfaceFound;

-                               }                       
+                               }

 
                                /* Clear any found endpoints */
                                DataINEndpoint       = NULL;
 
                                /* Clear any found endpoints */
                                DataINEndpoint       = NULL;


@@ -111,7 +111,7 @@ uint8_t ProcessConfigurationDescriptor(void)
                        /* Skip the remainder of the loop as we have not found an endpoint yet */
                        continue;
                }
                        /* Skip the remainder of the loop as we have not found an endpoint yet */
                        continue;
                }

-               
+

                /* Retrieve the endpoint address from the endpoint descriptor */
                USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(CurrConfigLocation, USB_Descriptor_Endpoint_t);
 
                /* Retrieve the endpoint address from the endpoint descriptor */
                USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(CurrConfigLocation, USB_Descriptor_Endpoint_t);
 


@@ -129,7 +129,7 @@ uint8_t ProcessConfigurationDescriptor(void)
                        DataOUTEndpoint = EndpointData;
                }
        }
                        DataOUTEndpoint = EndpointData;
                }
        }

-       
+

        /* Configure the CDC data IN pipe */
        Pipe_ConfigurePipe(CDC_DATA_IN_PIPE, EP_TYPE_BULK, PIPE_TOKEN_IN,
                           DataINEndpoint->EndpointAddress, DataINEndpoint->EndpointSize, PIPE_BANK_SINGLE);
        /* Configure the CDC data IN pipe */
        Pipe_ConfigurePipe(CDC_DATA_IN_PIPE, EP_TYPE_BULK, PIPE_TOKEN_IN,
                           DataINEndpoint->EndpointAddress, DataINEndpoint->EndpointSize, PIPE_BANK_SINGLE);


@@ -157,17 +157,21 @@ uint8_t ProcessConfigurationDescriptor(void)
  */
 uint8_t DComp_NextCDCControlInterface(void* CurrentDescriptor)
 {
  */
 uint8_t DComp_NextCDCControlInterface(void* CurrentDescriptor)
 {

-       if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
+       USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
+
+       if (Header->Type == DTYPE_Interface)

        {
        {

+               USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);
+

                /* Check the CDC descriptor class, subclass and protocol, break out if correct control interface found */
                /* Check the CDC descriptor class, subclass and protocol, break out if correct control interface found */

-               if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class    == CDC_CONTROL_CLASS)    &&
-                   (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).SubClass == CDC_CONTROL_SUBCLASS) &&
-                   (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == CDC_CONTROL_PROTOCOL))
+               if ((Interface->Class    == CDC_CSCP_CDCClass)    &&
+                   (Interface->SubClass == CDC_CSCP_ACMSubclass) &&
+                   (Interface->Protocol == CDC_CSCP_ATCommandProtocol))

                {
                        return DESCRIPTOR_SEARCH_Found;
                }
        }
                {
                        return DESCRIPTOR_SEARCH_Found;
                }
        }

-       
+

        return DESCRIPTOR_SEARCH_NotFound;
 }
 
        return DESCRIPTOR_SEARCH_NotFound;
 }
 


@@ -181,17 +185,21 @@ uint8_t DComp_NextCDCControlInterface(void* CurrentDescriptor)
  */
 uint8_t DComp_NextCDCDataInterface(void* CurrentDescriptor)
 {
  */
 uint8_t DComp_NextCDCDataInterface(void* CurrentDescriptor)
 {

-       if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
+       USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
+
+       if (Header->Type == DTYPE_Interface)

        {
        {

+               USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);
+

                /* Check the CDC descriptor class, subclass and protocol, break out if correct data interface found */
                /* Check the CDC descriptor class, subclass and protocol, break out if correct data interface found */

-               if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class    == CDC_DATA_CLASS)    &&
-                   (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).SubClass == CDC_DATA_SUBCLASS) &&
-                   (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == CDC_DATA_PROTOCOL))
+               if ((Interface->Class    == CDC_CSCP_CDCDataClass)   &&
+                   (Interface->SubClass == CDC_CSCP_NoDataSubclass) &&
+                   (Interface->Protocol == CDC_CSCP_NoDataProtocol))

                {
                        return DESCRIPTOR_SEARCH_Found;
                }
        }
                {
                        return DESCRIPTOR_SEARCH_Found;
                }
        }

-       
+

        return DESCRIPTOR_SEARCH_NotFound;
 }
 
        return DESCRIPTOR_SEARCH_NotFound;
 }
 


@@ -207,18 +215,23 @@ uint8_t DComp_NextCDCDataInterface(void* CurrentDescriptor)
  */
 uint8_t DComp_NextCDCDataInterfaceEndpoint(void* CurrentDescriptor)
 {
  */
 uint8_t DComp_NextCDCDataInterfaceEndpoint(void* CurrentDescriptor)
 {

-       if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
+       USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
+
+       if (Header->Type == DTYPE_Endpoint)

        {
        {

-               uint8_t EndpointType = (DESCRIPTOR_CAST(CurrentDescriptor,
-                                                       USB_Descriptor_Endpoint_t).Attributes & EP_TYPE_MASK);
-       
-               if ((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT))
-                 return DESCRIPTOR_SEARCH_Found;
+               USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t);
+
+               if (((Endpoint->Attributes & EP_TYPE_MASK) == EP_TYPE_BULK) || 
+                   ((Endpoint->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT))
+               {
+                       return DESCRIPTOR_SEARCH_Found;
+               }

        }
        }

-       else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
+       else if (Header->Type == DTYPE_Interface)

        {
                return DESCRIPTOR_SEARCH_Fail;
        }
 
        return DESCRIPTOR_SEARCH_NotFound;
 }
        {
                return DESCRIPTOR_SEARCH_Fail;
        }
 
        return DESCRIPTOR_SEARCH_NotFound;
 }

+