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149 lines
7.1 KiB
C
149 lines
7.1 KiB
C
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/* AVB support
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*
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* Copyright © 2022 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef AVBTP_ADP_H
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#define AVBTP_ADP_H
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#include "packets.h"
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#include "internal.h"
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#define AVBTP_ADP_MESSAGE_TYPE_ENTITY_AVAILABLE 0
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#define AVBTP_ADP_MESSAGE_TYPE_ENTITY_DEPARTING 1
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#define AVBTP_ADP_MESSAGE_TYPE_ENTITY_DISCOVER 2
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#define AVBTP_ADP_ENTITY_CAPABILITY_EFU_MODE (1u<<0)
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#define AVBTP_ADP_ENTITY_CAPABILITY_ADDRESS_ACCESS_SUPPORTED (1u<<1)
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#define AVBTP_ADP_ENTITY_CAPABILITY_GATEWAY_ENTITY (1u<<2)
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#define AVBTP_ADP_ENTITY_CAPABILITY_AEM_SUPPORTED (1u<<3)
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#define AVBTP_ADP_ENTITY_CAPABILITY_LEGACY_AVC (1u<<4)
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#define AVBTP_ADP_ENTITY_CAPABILITY_ASSOCIATION_ID_SUPPORTED (1u<<5)
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#define AVBTP_ADP_ENTITY_CAPABILITY_ASSOCIATION_ID_VALID (1u<<6)
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#define AVBTP_ADP_ENTITY_CAPABILITY_VENDOR_UNIQUE_SUPPORTED (1u<<7)
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#define AVBTP_ADP_ENTITY_CAPABILITY_CLASS_A_SUPPORTED (1u<<8)
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#define AVBTP_ADP_ENTITY_CAPABILITY_CLASS_B_SUPPORTED (1u<<9)
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#define AVBTP_ADP_ENTITY_CAPABILITY_GPTP_SUPPORTED (1u<<10)
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#define AVBTP_ADP_ENTITY_CAPABILITY_AEM_AUTHENTICATION_SUPPORTED (1u<<11)
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#define AVBTP_ADP_ENTITY_CAPABILITY_AEM_AUTHENTICATION_REQUIRED (1u<<12)
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#define AVBTP_ADP_ENTITY_CAPABILITY_AEM_PERSISTENT_ACQUIRE_SUPPORTED (1u<<13)
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#define AVBTP_ADP_ENTITY_CAPABILITY_AEM_IDENTIFY_CONTROL_INDEX_VALID (1u<<14)
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#define AVBTP_ADP_ENTITY_CAPABILITY_AEM_INTERFACE_INDEX_VALID (1u<<15)
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#define AVBTP_ADP_ENTITY_CAPABILITY_GENERAL_CONTROLLER_IGNORE (1u<<16)
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#define AVBTP_ADP_ENTITY_CAPABILITY_ENTITY_NOT_READY (1u<<17)
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#define AVBTP_ADP_TALKER_CAPABILITY_IMPLEMENTED (1u<<0)
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#define AVBTP_ADP_TALKER_CAPABILITY_OTHER_SOURCE (1u<<9)
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#define AVBTP_ADP_TALKER_CAPABILITY_CONTROL_SOURCE (1u<<10)
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#define AVBTP_ADP_TALKER_CAPABILITY_MEDIA_CLOCK_SOURCE (1u<<11)
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#define AVBTP_ADP_TALKER_CAPABILITY_SMPTE_SOURCE (1u<<12)
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#define AVBTP_ADP_TALKER_CAPABILITY_MIDI_SOURCE (1u<<13)
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#define AVBTP_ADP_TALKER_CAPABILITY_AUDIO_SOURCE (1u<<14)
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#define AVBTP_ADP_TALKER_CAPABILITY_VIDEO_SOURCE (1u<<15)
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#define AVBTP_ADP_LISTENER_CAPABILITY_IMPLEMENTED (1u<<0)
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#define AVBTP_ADP_LISTENER_CAPABILITY_OTHER_SINK (1u<<9)
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#define AVBTP_ADP_LISTENER_CAPABILITY_CONTROL_SINK (1u<<10)
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#define AVBTP_ADP_LISTENER_CAPABILITY_MEDIA_CLOCK_SINK (1u<<11)
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#define AVBTP_ADP_LISTENER_CAPABILITY_SMPTE_SINK (1u<<12)
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#define AVBTP_ADP_LISTENER_CAPABILITY_MIDI_SINK (1u<<13)
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#define AVBTP_ADP_LISTENER_CAPABILITY_AUDIO_SINK (1u<<14)
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#define AVBTP_ADP_LISTENER_CAPABILITY_VIDEO_SINK (1u<<15)
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#define AVBTP_ADP_CONTROLLER_CAPABILITY_IMPLEMENTED (1u<<0)
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#define AVBTP_ADP_CONTROLLER_CAPABILITY_LAYER3_PROXY (1u<<1)
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struct avbtp_packet_adp {
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uint8_t subtype;
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#if __BYTE_ORDER == __BIG_ENDIAN
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unsigned sv:1;
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unsigned version:3;
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unsigned message_type:4;
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unsigned valid_time:5;
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unsigned len1:3;
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#elif __BYTE_ORDER == __LITTLE_ENDIAN
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unsigned message_type:4;
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unsigned version:3;
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unsigned sv:1;
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unsigned len1:3;
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unsigned valid_time:5;
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#endif
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uint8_t len2:8;
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uint64_t entity_id;
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uint64_t entity_model_id;
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uint32_t entity_capabilities;
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uint16_t talker_stream_sources;
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uint16_t talker_capabilities;
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uint16_t listener_stream_sinks;
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uint16_t listener_capabilities;
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uint32_t controller_capabilities;
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uint32_t available_index;
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uint64_t gptp_grandmaster_id;
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uint32_t reserved0;
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uint16_t identify_control_index;
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uint16_t interface_index;
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uint32_t association_id;
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uint32_t reserved1;
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} __attribute__ ((__packed__));
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#define AVBTP_PACKET_ADP_SET_SUBTYPE(p,v) ((p)->subtype = (v))
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#define AVBTP_PACKET_ADP_SET_SV(p,v) ((p)->sv = (v))
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#define AVBTP_PACKET_ADP_SET_VERSION(p,v) ((p)->version = (v))
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#define AVBTP_PACKET_ADP_SET_MESSAGE_TYPE(p,v) ((p)->message_type = (v))
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#define AVBTP_PACKET_ADP_SET_VALID_TIME(p,v) ((p)->valid_time = (v))
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#define AVBTP_PACKET_ADP_SET_LENGTH(p,v) ((p)->len1 = ((v) >> 8),(p)->len2 = (v))
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#define AVBTP_PACKET_ADP_SET_ENTITY_ID(p,v) ((p)->entity_id = htobe64(v))
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#define AVBTP_PACKET_ADP_SET_ENTITY_MODEL_ID(p,v) ((p)->entity_model_id = htobe64(v))
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#define AVBTP_PACKET_ADP_SET_ENTITY_CAPABILITIES(p,v) ((p)->entity_capabilities = htonl(v))
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#define AVBTP_PACKET_ADP_SET_TALKER_STREAM_SOURCES(p,v) ((p)->talker_stream_sources = htons(v))
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#define AVBTP_PACKET_ADP_SET_TALKER_CAPABILITIES(p,v) ((p)->talker_capabilities = htons(v))
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#define AVBTP_PACKET_ADP_SET_LISTENER_STREAM_SINKS(p,v) ((p)->listener_stream_sinks = htons(v))
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#define AVBTP_PACKET_ADP_SET_LISTENER_CAPABILITIES(p,v) ((p)->listener_capabilities = htons(v))
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#define AVBTP_PACKET_ADP_SET_CONTROLLER_CAPABILITIES(p,v) ((p)->controller_capabilities = htonl(v))
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#define AVBTP_PACKET_ADP_SET_AVAILABLE_INDEX(p,v) ((p)->available_index = htonl(v))
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#define AVBTP_PACKET_ADP_SET_GPTP_GRANDMASTER_ID(p,v) ((p)->gptp_grandmaster_id = htobe64(v))
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#define AVBTP_PACKET_ADP_SET_ASSOCIATION_ID(p,v) ((p)->association_id = htonl(v))
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#define AVBTP_PACKET_ADP_GET_SUBTYPE(p) ((p)->subtype)
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#define AVBTP_PACKET_ADP_GET_SV(p) ((p)->sv)
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#define AVBTP_PACKET_ADP_GET_VERSION(p) ((p)->version)
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#define AVBTP_PACKET_ADP_GET_MESSAGE_TYPE(p) ((p)->message_type)
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#define AVBTP_PACKET_ADP_GET_VALID_TIME(p) ((p)->valid_time)
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#define AVBTP_PACKET_ADP_GET_LENGTH(p) (((p)->len1 << 8) | (p)->len2)
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#define AVBTP_PACKET_ADP_GET_ENTITY_ID(p) be64toh((p)->entity_id)
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#define AVBTP_PACKET_ADP_GET_ENTITY_MODEL_ID(p) be64toh((p)->entity_model_id)
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#define AVBTP_PACKET_ADP_GET_ENTITY_CAPABILITIES(p) ntohl((p)->entity_capabilities)
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#define AVBTP_PACKET_ADP_GET_TALKER_STREAM_SOURCES(p) ntohs((p)->talker_stream_sources)
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#define AVBTP_PACKET_ADP_GET_TALKER_CAPABILITIES(p) ntohs((p)->talker_capabilities)
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#define AVBTP_PACKET_ADP_GET_LISTENER_STREAM_SINKS(p) ntohs((p)->listener_stream_sinks)
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#define AVBTP_PACKET_ADP_GET_LISTENER_CAPABILITIES(p) ntohs((p)->listener_capabilities)
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#define AVBTP_PACKET_ADP_GET_CONTROLLER_CAPABILITIES(p) ntohl((p)->controller_capabilities)
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#define AVBTP_PACKET_ADP_GET_AVAILABLE_INDEX(p) ntohl((p)->available_index)
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#define AVBTP_PACKET_ADP_GET_GPTP_GRANDMASTER_ID(p) be64toh((p)->gptp_grandmaster_id)
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#define AVBTP_PACKET_ADP_GET_ASSOCIATION_ID(p) ntohl((p)->association_id)
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struct avbtp_adp *avbtp_adp_register(struct server *server);
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#endif /* AVBTP_ADP_H */
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