X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/c8942ef4699362747efd6580975a7f61757a4cd6..eea687e6d9524e252d3ae50f06b33f4e753dcf2b:/Demos/Host/LowLevel/MouseHost/ConfigDescriptor.c?ds=inline diff --git a/Demos/Host/LowLevel/MouseHost/ConfigDescriptor.c b/Demos/Host/LowLevel/MouseHost/ConfigDescriptor.c index b5d62236e..926642f02 100644 --- a/Demos/Host/LowLevel/MouseHost/ConfigDescriptor.c +++ b/Demos/Host/LowLevel/MouseHost/ConfigDescriptor.c @@ -1,21 +1,21 @@ /* LUFA Library - Copyright (C) Dean Camera, 2010. - + Copyright (C) Dean Camera, 2011. + 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 - 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 - 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 @@ -50,7 +50,7 @@ uint8_t ProcessConfigurationDescriptor(void) uint8_t ConfigDescriptorData[512]; void* CurrConfigLocation = ConfigDescriptorData; uint16_t CurrConfigBytesRem; - + USB_Descriptor_Interface_t* HIDInterface = NULL; USB_Descriptor_Endpoint_t* DataINEndpoint = NULL; @@ -88,20 +88,20 @@ uint8_t ProcessConfigurationDescriptor(void) /* 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); /* If the endpoint is a IN type endpoint */ - if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN) + if ((EndpointData->EndpointAddress & ENDPOINT_DIR_MASK) == ENDPOINT_DIR_IN) DataINEndpoint = EndpointData; } - + /* Configure the HID data IN pipe */ Pipe_ConfigurePipe(MOUSE_DATA_IN_PIPE, EP_TYPE_INTERRUPT, PIPE_TOKEN_IN, DataINEndpoint->EndpointAddress, DataINEndpoint->EndpointSize, PIPE_BANK_SINGLE); Pipe_SetInterruptPeriod(DataINEndpoint->PollingIntervalMS); - + /* Valid data found, return success */ return SuccessfulConfigRead; } @@ -116,18 +116,22 @@ uint8_t ProcessConfigurationDescriptor(void) */ uint8_t DComp_NextMouseInterface(void* CurrentDescriptor) { + USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t); + /* Determine if the current descriptor is an interface descriptor */ - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) + if (Header->Type == DTYPE_Interface) { + USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t); + /* Check the HID descriptor class and protocol, break out if correct class/protocol interface found */ - if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class == MOUSE_CLASS) && - (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == MOUSE_PROTOCOL)) + if ((Interface->Class == HID_CSCP_HIDClass) && + (Interface->Protocol == HID_CSCP_MouseBootProtocol)) { /* Indicate that the descriptor being searched for has been found */ return DESCRIPTOR_SEARCH_Found; } } - + /* Current descriptor does not match what this comparator is looking for */ return DESCRIPTOR_SEARCH_NotFound; } @@ -136,29 +140,21 @@ uint8_t DComp_NextMouseInterface(void* CurrentDescriptor) * configuration descriptor, to search for a specific sub descriptor. It can also be used to abort the configuration * descriptor processing if an incompatible descriptor configuration is found. * - * This comparator searches for the next IN Endpoint descriptor inside the current interface descriptor, - * aborting the search if another interface descriptor is found before the required endpoint. + * This comparator searches for the next Endpoint descriptor inside the current interface descriptor, aborting the + * search if another interface descriptor is found before the required endpoint. * * \return A value from the DSEARCH_Return_ErrorCodes_t enum */ uint8_t DComp_NextMouseInterfaceDataEndpoint(void* CurrentDescriptor) { - /* Determine the type of the current descriptor */ - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint) - { - /* Check if the current Endpoint descriptor is of type IN */ - if (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Endpoint_t).EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN) - { - /* Indicate that the descriptor being searched for has been found */ - return DESCRIPTOR_SEARCH_Found; - } - } - else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) - { - /* Indicate that the search has failed prematurely and should be aborted */ - return DESCRIPTOR_SEARCH_Fail; - } + USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t); - /* Current descriptor does not match what this comparator is looking for */ - return DESCRIPTOR_SEARCH_NotFound; + /* Determine the type of the current descriptor */ + if (Header->Type == DTYPE_Endpoint) + return DESCRIPTOR_SEARCH_Found; + else if (Header->Type == DTYPE_Interface) + return DESCRIPTOR_SEARCH_Fail; + else + return DESCRIPTOR_SEARCH_NotFound; } +