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/AUDDataEndpointDescriptor.h | 104 +++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 usb/common/audio/AUDDataEndpointDescriptor.h (limited to 'usb/common/audio/AUDDataEndpointDescriptor.h') diff --git a/usb/common/audio/AUDDataEndpointDescriptor.h b/usb/common/audio/AUDDataEndpointDescriptor.h new file mode 100644 index 0000000..5963546 --- /dev/null +++ b/usb/common/audio/AUDDataEndpointDescriptor.h @@ -0,0 +1,104 @@ +/* ---------------------------------------------------------------------------- + * 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 the USB audio-specific data endpoint descriptor. +/// +/// !!!Usage +/// +/// -# Declare an AUDDataEndpointDescriptor instance as part of the +/// configuration descriptors of a USB %audio %device. +//------------------------------------------------------------------------------ + +#ifndef AUDDATAENDPOINTDESCRIPTOR_H +#define AUDDATAENDPOINTDESCRIPTOR_H + +//------------------------------------------------------------------------------ +// Definitions +//------------------------------------------------------------------------------ + +/// Descriptor subtype for an Audio data endpoint. +#define AUDDataEndpointDescriptor_SUBTYPE 0x01 + +//------------------------------------------------------------------------------ +/// \page "USB Audio Lock delay units" +/// +/// This page lists the valid lock delay unit types. +/// +/// !Units +/// - AUDDataEndpointDescriptor_MILLISECONDS +/// - AUDDataEndpointDescriptor_PCMSAMPLES + +/// Lock delay is expressed in milliseconds. +#define AUDDataEndpointDescriptor_MILLISECONDS 1 + +/// Lock delay is expressed in decoded PCM samples. +#define AUDDataEndpointDescriptor_PCMSAMPLES 2 +//------------------------------------------------------------------------------ + +//------------------------------------------------------------------------------ +// Types +//------------------------------------------------------------------------------ + +#ifdef __ICCARM__ // IAR +#pragma pack(1) // IAR +#define __attribute__(...) // IAR +#endif // IAR + +//------------------------------------------------------------------------------ +/// Gives additional information about an USB endpoint used to transmit audio +/// data to or from the host. +//------------------------------------------------------------------------------ +typedef struct { + + /// Size of descriptor in bytes. + unsigned char bLength; + /// Descriptor type (AUDGenericDescriptor_ENDPOINT). + unsigned char bDescriptorType; + /// Descriptor subtype (AUDDataEndpointDescriptor_SUBTYPE). + unsigned char bDescriptorSubType; + /// Indicates available controls and requirement on packet sizes. + unsigned char bmAttributes; + /// Indicates the units of the wLockDelay fields. + /// \sa "USB Audio Lock delay units" + unsigned char bLockDelayUnits; + /// Time it takes for the endpoint to lock its internal clock circuitry. + unsigned short wLockDelay; + +} __attribute__ ((packed)) AUDDataEndpointDescriptor; // GCC + +#ifdef __ICCARM__ // IAR +#pragma pack() // IAR +#endif // IAR + +#endif //#ifndef AUDDATAENDPOINTDESCRIPTOR_H -- cgit v1.2.3