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