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module-rtp-sap: support PTP management protocol

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Request current clock sync status to know the grandmaster identity for SAP announcements
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Dmitry Sharshakov 2024-01-18 12:50:41 +03:00 • committed by Wim Taymans
parent 2f46ee2793
commit 7abb896aef
3 changed files with 239 additions and 7 deletions
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61
src/modules/module-rtp/ptp.h Normal file
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/* PipeWire */
/* SPDX-FileCopyrightText: Copyright © 2024 Dmitry Sharshakov <d3dx12.xx@gmail.com> */
/* SPDX-License-Identifier: MIT */
#ifndef PIPEWIRE_PTP_H
#define PIPEWIRE_PTP_H
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
struct ptp_management_msg {
// 4 for major_sdo, 4 for msg_type
uint8_t major_sdo_id_message_type;
// 4 for minor, 4 for major
uint8_t ver;
uint16_t message_length_be;
uint8_t domain_number;
uint8_t minor_sdo_id;
uint16_t flags_be;
uint8_t correction_field[8];
uint32_t message_type_specific;
uint8_t clock_identity[8];
uint16_t source_port_id_be;
uint16_t sequence_id_be;
uint8_t control_field;
uint8_t log_message_interval;
uint8_t target_port_identity[8];
uint16_t target_port_id_be;
uint8_t starting_boundary_hops;
uint8_t boundary_hops;
uint8_t action;
uint8_t reserved;
uint16_t tlv_type_be;
// length of data after this + 2 for management_id
uint16_t management_message_length_be;
uint16_t management_id_be;
} __attribute__((packed));
struct ptp_parent_data_set {
uint8_t parent_clock_id[8];
uint16_t parent_port_id_be;
uint8_t parent_stats;
uint8_t reserved;
uint16_t log_variance_be;
int32_t phase_change_rate_be;
uint8_t gm_prio1;
uint8_t gm_clock_class;
uint8_t gm_clock_accuracy;
uint16_t gm_clock_variance_be;
uint8_t gm_prio2;
uint8_t gm_clock_id[8];
} __attribute__((packed));
#ifdef __cplusplus
}
#endif
#endif /* PIPEWIRE_PTP_H */