From 044ad7c3987460ede48ff27afd6bdb0ca05a0432 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Mon, 4 Jul 2011 20:52:54 +0200 Subject: import at91lib from at91lib_20100901_softpack_1_9_v_1_0_svn_v15011 it's sad to see that atmel doesn't publish their svn repo or has a centralized location or even puts proper version/release info into the library itself --- usb/common/audio/AUDStreamingInterfaceDescriptor.h | 129 +++++++++++++++++++++ 1 file changed, 129 insertions(+) create mode 100644 usb/common/audio/AUDStreamingInterfaceDescriptor.h (limited to 'usb/common/audio/AUDStreamingInterfaceDescriptor.h') diff --git a/usb/common/audio/AUDStreamingInterfaceDescriptor.h b/usb/common/audio/AUDStreamingInterfaceDescriptor.h new file mode 100644 index 0000000..80c9cfd --- /dev/null +++ b/usb/common/audio/AUDStreamingInterfaceDescriptor.h @@ -0,0 +1,129 @@ +/* ---------------------------------------------------------------------------- + * ATMEL Microcontroller Software Support + * ---------------------------------------------------------------------------- + * Copyright (c) 2008, Atmel Corporation + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * - Redistributions of source code must retain the above copyright notice, + * this list of conditions and the disclaimer below. + * + * Atmel's name may not be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, + * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * ---------------------------------------------------------------------------- + */ + +//------------------------------------------------------------------------------ +/// \unit +/// +/// !!!Purpose +/// +/// Definition of a class for manipulating USB %audio streaming interface +/// descriptors. +/// +/// !!!Usage +/// +/// - For a USB %device: +/// -# Declare an AUDStreamingInterfaceDescriptor instance as part of the +/// configuration descriptors returned by a USB %audio %device. +//------------------------------------------------------------------------------ + +#ifndef AUDSTREAMINGINTERFACEDESCRIPTOR_H +#define AUDSTREAMINGINTERFACEDESCRIPTOR_H + +//------------------------------------------------------------------------------ +// Definitions +//------------------------------------------------------------------------------ + +//------------------------------------------------------------------------------ +/// \page "USB Audio streaming interface codes" +/// +/// This page lists the class, subclass and protocol codes that an Audio +/// Streaming interface should display in its descriptor. +/// +/// !Codes +/// - AUDStreamingInterfaceDescriptor_CLASS +/// - AUDStreamingInterfaceDescriptor_SUBCLASS +/// - AUDStreamingInterfaceDescriptor_PROTOCOL + +/// Class code for an USB audio streaming interface. +#define AUDStreamingInterfaceDescriptor_CLASS 0x01 + +/// Subclass code for an audio streaming interface. +#define AUDStreamingInterfaceDescriptor_SUBCLASS 0x02 + +/// Protocol code for an audio streaming interface. +#define AUDStreamingInterfaceDescriptor_PROTOCOL 0x00 +//------------------------------------------------------------------------------ + +//------------------------------------------------------------------------------ +/// \page "USB Audio streaming descriptor subtypes" +/// +/// This page lists the possible subtypes for audio-specific descriptor appended +/// to an Audio Streaming interface. +/// +/// !Subtypes +/// - AUDStreamingInterfaceDescriptor_GENERAL +/// - AUDStreamingInterfaceDescriptor_FORMATTYPE +/// - AUDStreamingInterfaceDescriptor_FORMATSPECIFIC + +/// General descriptor subtype. +#define AUDStreamingInterfaceDescriptor_GENERAL 0x01 + +/// Format type descriptor subtype. +#define AUDStreamingInterfaceDescriptor_FORMATTYPE 0x02 + +/// Format specific descriptor subtype. +#define AUDStreamingInterfaceDescriptor_FORMATSPECIFIC 0x03 +//------------------------------------------------------------------------------ + +//------------------------------------------------------------------------------ +// Types +//------------------------------------------------------------------------------ + +#ifdef __ICCARM__ // IAR +#pragma pack(1) // IAR +#define __attribute__(...) // IAR +#endif // IAR + +//------------------------------------------------------------------------------ +/// Provides additional information about an audio streaming interface to +/// the USB host. +//------------------------------------------------------------------------------ +typedef struct { + + /// Size of descriptor in bytes. + unsigned char bLength; + /// Descriptor type (AUDGenericDescriptor_INTERFACE). + unsigned char bDescriptorType; + /// Descriptor subtype (AUDStreamingInterfaceDescriptor_GENERAL). + unsigned char bDescriptorSubType; + /// Terminal ID to which the interface is connected. + unsigned char bTerminalLink; + /// Delay introduced by the data path, in number of frames. + unsigned char bDelay; + /// Audio data format used by this interface. + unsigned short wFormatTag; + +} __attribute__ ((packed)) AUDStreamingInterfaceDescriptor; // GCC + +#ifdef __ICCARM__ // IAR +#pragma pack() // IAR +#endif // IAR + +#endif //#ifndef AUDSTREAMINGINTERFACEDESCRIPTOR_H + -- cgit v1.2.3