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