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avb: add aecp stubs

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Wim Taymans 2022-03-16 10:53:01 +01:00
parent dc44a61ef3
commit 07a4c5032e
6 changed files with 239 additions and 8 deletions
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69
src/modules/module-avbtp/aecp.h Normal file
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/* AVB support
*
* Copyright © 2022 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef AVBTP_AECP_H
#define AVBTP_AECP_H
#include "packets.h"
#include "internal.h"
#define AVBTP_AECP_DATA_LENGTH 56
struct avbtp_packet_aecp {
uint8_t subtype;
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned sv:1;
unsigned version:3;
unsigned message_type:4;
unsigned valid_time:5;
unsigned len1:3;
#elif __BYTE_ORDER == __LITTLE_ENDIAN
unsigned message_type:4;
unsigned version:3;
unsigned sv:1;
unsigned len1:3;
unsigned valid_time:5;
#endif
uint8_t len2:8;
} __attribute__ ((__packed__));
#define AVBTP_PACKET_AECP_SET_SUBTYPE(p,v) ((p)->subtype = (v))
#define AVBTP_PACKET_AECP_SET_SV(p,v) ((p)->sv = (v))
#define AVBTP_PACKET_AECP_SET_VERSION(p,v) ((p)->version = (v))
#define AVBTP_PACKET_AECP_SET_MESSAGE_TYPE(p,v) ((p)->message_type = (v))
#define AVBTP_PACKET_AECP_SET_VALID_TIME(p,v) ((p)->valid_time = (v))
#define AVBTP_PACKET_AECP_SET_LENGTH(p,v) ((p)->len1 = ((v) >> 8),(p)->len2 = (v))
#define AVBTP_PACKET_AECP_GET_SUBTYPE(p) ((p)->subtype)
#define AVBTP_PACKET_AECP_GET_SV(p) ((p)->sv)
#define AVBTP_PACKET_AECP_GET_VERSION(p) ((p)->version)
#define AVBTP_PACKET_AECP_GET_MESSAGE_TYPE(p) ((p)->message_type)
#define AVBTP_PACKET_AECP_GET_VALID_TIME(p) ((p)->valid_time)
#define AVBTP_PACKET_AECP_GET_LENGTH(p) (((p)->len1 << 8) | (p)->len2)
struct avbtp_aecp *avbtp_aecp_register(struct server *server);
#endif /* AVBTP_AECP_H */