Add missing SVN eol-style properties to source files to prevent mixed end-of-line characters.
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Dean Camera
parent
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43 changed files with 17978 additions and 17974 deletions
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@ -1,138 +1,138 @@
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2011.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* USB Device Configuration Descriptor processing routines, to determine the correct pipe configurations
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* needed to communication with an attached USB device. Descriptors are special computer-readable structures
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* which the host requests upon device enumeration, to determine the device's capabilities and functions.
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*/
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#include "ConfigDescriptor.h"
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/** Reads and processes an attached device's descriptors, to determine compatibility and pipe configurations. This
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* routine will read in the entire configuration descriptor, and configure the hosts pipes to correctly communicate
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* with compatible devices.
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*
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* This routine searches for the first interface containing bulk IN and OUT data endpoints.
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*
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* \return An error code from the \ref AndroidHost_GetConfigDescriptorDataCodes_t enum.
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*/
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uint8_t ProcessConfigurationDescriptor(void)
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{
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uint8_t ConfigDescriptorData[512];
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void* CurrConfigLocation = ConfigDescriptorData;
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uint16_t CurrConfigBytesRem;
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USB_Descriptor_Endpoint_t* DataINEndpoint = NULL;
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USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL;
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/* Retrieve the entire configuration descriptor into the allocated buffer */
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switch (USB_Host_GetDeviceConfigDescriptor(1, &CurrConfigBytesRem, ConfigDescriptorData, sizeof(ConfigDescriptorData)))
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{
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case HOST_GETCONFIG_Successful:
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break;
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case HOST_GETCONFIG_InvalidData:
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return InvalidConfigDataReturned;
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case HOST_GETCONFIG_BuffOverflow:
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return DescriptorTooLarge;
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default:
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return DevControlError;
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}
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/* The Android Accessory Mode specification mandates that the accessory communications endpoints
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be in the first interface descriptor (interface 0) */
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USB_GetNextDescriptorOfType(&CurrConfigBytesRem, &CurrConfigLocation, DTYPE_Interface);
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/* Ensure that an interface was found, and the end of the descriptor was not reached */
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if (!(CurrConfigBytesRem))
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return NoCompatibleInterfaceFound;
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while (!(DataINEndpoint) || !(DataOUTEndpoint))
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{
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/* Get the next Still Image interface's data endpoint descriptor */
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if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,
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DCOMP_NextInterfaceBulkEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
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{
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/* Data endpoints not found within the first Android Accessory device interface, error out */
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return NoCompatibleInterfaceFound;
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}
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/* Retrieve the endpoint address from the endpoint descriptor */
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USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(CurrConfigLocation, USB_Descriptor_Endpoint_t);
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/* If the endpoint is a IN type endpoint */
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if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
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DataINEndpoint = EndpointData;
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else
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DataOUTEndpoint = EndpointData;
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}
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/* Configure the Android Accessory data IN pipe */
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Pipe_ConfigurePipe(ANDROID_DATA_IN_PIPE, EP_TYPE_BULK, PIPE_TOKEN_IN,
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DataINEndpoint->EndpointAddress, DataINEndpoint->EndpointSize, PIPE_BANK_SINGLE);
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/* Configure the Android Accessory data OUT pipe */
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Pipe_ConfigurePipe(ANDROID_DATA_OUT_PIPE, EP_TYPE_BULK, PIPE_TOKEN_OUT,
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DataOUTEndpoint->EndpointAddress, DataOUTEndpoint->EndpointSize, PIPE_BANK_SINGLE);
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/* Valid data found, return success */
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return SuccessfulConfigRead;
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}
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/** Descriptor comparator function. This comparator function is can be called while processing an attached USB device's
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* configuration descriptor, to search for a specific sub descriptor. It can also be used to abort the configuration
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* descriptor processing if an incompatible descriptor configuration is found.
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*
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* This comparator searches for the next Endpoint descriptor inside the current interface descriptor, aborting the
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* search if another interface descriptor is found before the required endpoint.
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*
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* \return A value from the DSEARCH_Return_ErrorCodes_t enum
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*/
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uint8_t DCOMP_NextInterfaceBulkEndpoint(void* const CurrentDescriptor)
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{
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USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
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if (Header->Type == DTYPE_Endpoint)
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{
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USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t);
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uint8_t EndpointType = (Endpoint->Attributes & EP_TYPE_MASK);
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if ((EndpointType == EP_TYPE_BULK) && (!(Pipe_IsEndpointBound(Endpoint->EndpointAddress))))
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return DESCRIPTOR_SEARCH_Found;
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}
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else if (Header->Type == DTYPE_Interface)
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{
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return DESCRIPTOR_SEARCH_Fail;
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}
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return DESCRIPTOR_SEARCH_NotFound;
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}
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2011.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* USB Device Configuration Descriptor processing routines, to determine the correct pipe configurations
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* needed to communication with an attached USB device. Descriptors are special computer-readable structures
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* which the host requests upon device enumeration, to determine the device's capabilities and functions.
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*/
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#include "ConfigDescriptor.h"
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/** Reads and processes an attached device's descriptors, to determine compatibility and pipe configurations. This
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* routine will read in the entire configuration descriptor, and configure the hosts pipes to correctly communicate
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* with compatible devices.
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*
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* This routine searches for the first interface containing bulk IN and OUT data endpoints.
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*
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* \return An error code from the \ref AndroidHost_GetConfigDescriptorDataCodes_t enum.
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*/
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uint8_t ProcessConfigurationDescriptor(void)
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{
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uint8_t ConfigDescriptorData[512];
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void* CurrConfigLocation = ConfigDescriptorData;
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uint16_t CurrConfigBytesRem;
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USB_Descriptor_Endpoint_t* DataINEndpoint = NULL;
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USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL;
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/* Retrieve the entire configuration descriptor into the allocated buffer */
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switch (USB_Host_GetDeviceConfigDescriptor(1, &CurrConfigBytesRem, ConfigDescriptorData, sizeof(ConfigDescriptorData)))
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{
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case HOST_GETCONFIG_Successful:
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break;
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case HOST_GETCONFIG_InvalidData:
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return InvalidConfigDataReturned;
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case HOST_GETCONFIG_BuffOverflow:
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return DescriptorTooLarge;
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default:
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return DevControlError;
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}
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/* The Android Accessory Mode specification mandates that the accessory communications endpoints
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be in the first interface descriptor (interface 0) */
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USB_GetNextDescriptorOfType(&CurrConfigBytesRem, &CurrConfigLocation, DTYPE_Interface);
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/* Ensure that an interface was found, and the end of the descriptor was not reached */
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if (!(CurrConfigBytesRem))
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return NoCompatibleInterfaceFound;
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while (!(DataINEndpoint) || !(DataOUTEndpoint))
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{
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/* Get the next Still Image interface's data endpoint descriptor */
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if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,
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DCOMP_NextInterfaceBulkEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
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{
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/* Data endpoints not found within the first Android Accessory device interface, error out */
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return NoCompatibleInterfaceFound;
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}
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/* Retrieve the endpoint address from the endpoint descriptor */
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USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(CurrConfigLocation, USB_Descriptor_Endpoint_t);
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/* If the endpoint is a IN type endpoint */
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if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
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DataINEndpoint = EndpointData;
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else
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DataOUTEndpoint = EndpointData;
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}
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/* Configure the Android Accessory data IN pipe */
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Pipe_ConfigurePipe(ANDROID_DATA_IN_PIPE, EP_TYPE_BULK, PIPE_TOKEN_IN,
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DataINEndpoint->EndpointAddress, DataINEndpoint->EndpointSize, PIPE_BANK_SINGLE);
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/* Configure the Android Accessory data OUT pipe */
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Pipe_ConfigurePipe(ANDROID_DATA_OUT_PIPE, EP_TYPE_BULK, PIPE_TOKEN_OUT,
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DataOUTEndpoint->EndpointAddress, DataOUTEndpoint->EndpointSize, PIPE_BANK_SINGLE);
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/* Valid data found, return success */
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return SuccessfulConfigRead;
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}
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/** Descriptor comparator function. This comparator function is can be called while processing an attached USB device's
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* configuration descriptor, to search for a specific sub descriptor. It can also be used to abort the configuration
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* descriptor processing if an incompatible descriptor configuration is found.
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*
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* This comparator searches for the next Endpoint descriptor inside the current interface descriptor, aborting the
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* search if another interface descriptor is found before the required endpoint.
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*
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* \return A value from the DSEARCH_Return_ErrorCodes_t enum
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*/
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uint8_t DCOMP_NextInterfaceBulkEndpoint(void* const CurrentDescriptor)
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{
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USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
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if (Header->Type == DTYPE_Endpoint)
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{
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USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t);
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uint8_t EndpointType = (Endpoint->Attributes & EP_TYPE_MASK);
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if ((EndpointType == EP_TYPE_BULK) && (!(Pipe_IsEndpointBound(Endpoint->EndpointAddress))))
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return DESCRIPTOR_SEARCH_Found;
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}
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else if (Header->Type == DTYPE_Interface)
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{
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return DESCRIPTOR_SEARCH_Fail;
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}
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return DESCRIPTOR_SEARCH_NotFound;
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}
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