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https://gitlab.freedesktop.org/pipewire/pipewire.git
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131 lines
4 KiB
C
131 lines
4 KiB
C
/* 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 AVB_MSRP_H
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#define AVB_MSRP_H
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#include "internal.h"
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#include "mrp.h"
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#define AVB_MSRP_ETH 0x22ea
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#define AVB_MSRP_MAC { 0x01, 0x80, 0xc2, 0x00, 0x00, 0xe };
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#define AVB_MSRP_ATTRIBUTE_TYPE_TALKER_ADVERTISE 1
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#define AVB_MSRP_ATTRIBUTE_TYPE_TALKER_FAILED 2
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#define AVB_MSRP_ATTRIBUTE_TYPE_LISTENER 3
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#define AVB_MSRP_ATTRIBUTE_TYPE_DOMAIN 4
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#define AVB_MSRP_ATTRIBUTE_TYPE_VALID(t) ((t)>=1 && (t)<=4)
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struct avb_packet_msrp_msg {
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uint8_t attribute_type;
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uint8_t attribute_length;
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uint16_t attribute_list_length;
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uint8_t attribute_list[0];
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} __attribute__ ((__packed__));
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#define AVB_MSRP_TSPEC_MAX_INTERVAL_FRAMES_DEFAULT 1
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#define AVB_MSRP_RANK_DEFAULT 1
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#define AVB_MSRP_PRIORITY_DEFAULT 3
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struct avb_packet_msrp_talker {
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uint64_t stream_id;
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uint8_t dest_addr[6];
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uint16_t vlan_id;
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uint16_t tspec_max_frame_size;
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uint16_t tspec_max_interval_frames;
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#if __BYTE_ORDER == __BIG_ENDIAN
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unsigned priority:3;
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unsigned rank:1;
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unsigned reserved:4;
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#elif __BYTE_ORDER == __LITTLE_ENDIAN
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unsigned reserved:4;
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unsigned rank:1;
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unsigned priority:3;
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#endif
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uint32_t accumulated_latency;
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} __attribute__ ((__packed__));
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/* failure codes */
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#define AVB_MRP_FAIL_BANDWIDTH 1
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#define AVB_MRP_FAIL_BRIDGE 2
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#define AVB_MRP_FAIL_TC_BANDWIDTH 3
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#define AVB_MRP_FAIL_ID_BUSY 4
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#define AVB_MRP_FAIL_DSTADDR_BUSY 5
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#define AVB_MRP_FAIL_PREEMPTED 6
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#define AVB_MRP_FAIL_LATENCY_CHNG 7
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#define AVB_MRP_FAIL_PORT_NOT_AVB 8
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#define AVB_MRP_FAIL_DSTADDR_FULL 9
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#define AVB_MRP_FAIL_AVB_MRP_RESOURCE 10
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#define AVB_MRP_FAIL_MMRP_RESOURCE 11
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#define AVB_MRP_FAIL_DSTADDR_FAIL 12
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#define AVB_MRP_FAIL_PRIO_NOT_SR 13
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#define AVB_MRP_FAIL_FRAME_SIZE 14
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#define AVB_MRP_FAIL_FANIN_EXCEED 15
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#define AVB_MRP_FAIL_STREAM_CHANGE 16
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#define AVB_MRP_FAIL_VLAN_BLOCKED 17
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#define AVB_MRP_FAIL_VLAN_DISABLED 18
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#define AVB_MRP_FAIL_SR_PRIO_ERR 19
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struct avb_packet_msrp_talker_fail {
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struct avb_packet_msrp_talker talker;
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uint64_t bridge_id;
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uint8_t failure_code;
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} __attribute__ ((__packed__));
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struct avb_packet_msrp_listener {
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uint64_t stream_id;
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} __attribute__ ((__packed__));
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/* domain discovery */
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struct avb_packet_msrp_domain {
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uint8_t sr_class_id;
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uint8_t sr_class_priority;
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uint16_t sr_class_vid;
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} __attribute__ ((__packed__));
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#define AVB_MSRP_LISTENER_PARAM_IGNORE 0
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#define AVB_MSRP_LISTENER_PARAM_ASKING_FAILED 1
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#define AVB_MSRP_LISTENER_PARAM_READY 2
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#define AVB_MSRP_LISTENER_PARAM_READY_FAILED 3
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struct avb_msrp_attribute {
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struct avb_mrp_attribute *mrp;
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uint8_t type;
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uint8_t param;
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union {
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struct avb_packet_msrp_talker talker;
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struct avb_packet_msrp_talker_fail talker_fail;
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struct avb_packet_msrp_listener listener;
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struct avb_packet_msrp_domain domain;
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} attr;
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};
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struct avb_msrp;
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struct avb_msrp_attribute *avb_msrp_attribute_new(struct avb_msrp *msrp,
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uint8_t type);
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struct avb_msrp *avb_msrp_register(struct server *server);
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#endif /* AVB_MSRP_H */
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