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milan-avb: aecp-vendor-unique-milan-v12: add Milan MVU handler

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hackerman-kl 2026-04-25 11:36:16 +02:00 • committed by Wim Taymans
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commit e46f2487fb
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src/modules/module-avb/aecp-vendor-unique-milan-v12.h Normal file
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/* SPDX-FileCopyrightText: Copyright © 2025 Alexandre Malki */
/* SPDX-License-Identifier: MIT */
#ifndef AVB_AECP_VENDOR_UNIQUE_MILAN_V12_H
#define AVB_AECP_VENDOR_UNIQUE_MILAN_V12_H
#include <stdint.h>
#include "aecp.h"
/* Milan v1.2 Section 5.4.4 — Milan Vendor Unique (MVU) protocol carried inside an
* IEEE 1722.1 AECP VENDOR_UNIQUE_COMMAND/RESPONSE (message_type 6/7).
*
* Wire layout after the standard AECP common header:
* protocol_id (6) | command_type (2) | command-specific data
*
* Milan v1.2 Section 5.4.3.2.1: protocol_id is the Avnu OUI-36 00-1B-C5-0A-C
* appended with the 12-bit MVU protocol id 0x100, giving the 6-byte
* marker 00-1B-C5-0A-C1-00. command_type is a 1-bit U flag (MSB) +
* 15-bit command code. */
#define AVB_AECP_MVU_PROTOCOL_ID_0 0x00
#define AVB_AECP_MVU_PROTOCOL_ID_1 0x1B
#define AVB_AECP_MVU_PROTOCOL_ID_2 0xC5
#define AVB_AECP_MVU_PROTOCOL_ID_3 0x0A
#define AVB_AECP_MVU_PROTOCOL_ID_4 0xC1
#define AVB_AECP_MVU_PROTOCOL_ID_5 0x00
/* Milan MVU command codes (Milan v1.2 Section 5.4.4). */
#define AVB_AECP_MVU_CMD_GET_MILAN_INFO 0x0000
#define AVB_AECP_MVU_CMD_TYPE_U_FLAG_MASK 0x8000
#define AVB_AECP_MVU_CMD_TYPE_CMD_MASK 0x7FFF
struct avb_packet_aecp_vendor_unique {
struct avb_packet_aecp_header hdr;
uint8_t protocol_id[6];
uint16_t command_type;
uint8_t payload[0];
} __attribute__ ((__packed__));
struct avb_packet_aecp_mvu_get_milan_info_rsp {
uint32_t protocol_version;
uint32_t features_flags;
uint32_t certification_version;
} __attribute__ ((__packed__));
int aecp_vendor_unique_milan_v12_handle_command(struct aecp *aecp,
const void *m, int len);
#endif /* AVB_AECP_VENDOR_UNIQUE_MILAN_V12_H */