diff options
Diffstat (limited to 'Demos/Host/LowLevel/MIDIHost/ConfigDescriptor.c')
| -rw-r--r-- | Demos/Host/LowLevel/MIDIHost/ConfigDescriptor.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/Demos/Host/LowLevel/MIDIHost/ConfigDescriptor.c b/Demos/Host/LowLevel/MIDIHost/ConfigDescriptor.c index 7feb31251..874fa7a3a 100644 --- a/Demos/Host/LowLevel/MIDIHost/ConfigDescriptor.c +++ b/Demos/Host/LowLevel/MIDIHost/ConfigDescriptor.c @@ -1,7 +1,7 @@ /* LUFA Library Copyright (C) Dean Camera, 2010. - + dean [at] fourwalledcubicle [dot] com www.fourwalledcubicle.com */ @@ -9,13 +9,13 @@ /* Copyright 2010 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 @@ -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. */ - + #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; - + USB_Descriptor_Interface_t* MIDIInterface = NULL; USB_Descriptor_Endpoint_t* DataINEndpoint = NULL; USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL; @@ -67,7 +67,7 @@ uint8_t ProcessConfigurationDescriptor(void) default: return ControlError; } - + while (!(DataINEndpoint) || !(DataOUTEndpoint)) { /* See if we've found a likely compatible interface, and if there is an endpoint within that interface */ @@ -93,7 +93,7 @@ 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); @@ -103,7 +103,7 @@ uint8_t ProcessConfigurationDescriptor(void) else DataOUTEndpoint = EndpointData; } - + /* Configure the MIDI data IN pipe */ Pipe_ConfigurePipe(MIDI_DATA_IN_PIPE, EP_TYPE_BULK, PIPE_TOKEN_IN, DataINEndpoint->EndpointAddress, DataINEndpoint->EndpointSize, PIPE_BANK_SINGLE); @@ -136,7 +136,7 @@ uint8_t DComp_NextMIDIStreamingInterface(void* CurrentDescriptor) return DESCRIPTOR_SEARCH_Found; } } - + return DESCRIPTOR_SEARCH_NotFound; } @@ -155,7 +155,7 @@ uint8_t DComp_NextMIDIStreamingDataEndpoint(void* CurrentDescriptor) { uint8_t EndpointType = (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Endpoint_t).Attributes & EP_TYPE_MASK); - + /* Check the endpoint type, break out if correct BULK type endpoint found */ if (EndpointType == EP_TYPE_BULK) return DESCRIPTOR_SEARCH_Found; @@ -167,3 +167,4 @@ uint8_t DComp_NextMIDIStreamingDataEndpoint(void* CurrentDescriptor) return DESCRIPTOR_SEARCH_NotFound; } + |