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milan-avb: aecp-vendor-unique-milan-v12: dispatch via per-cmd table per Milan v1.2 Section 5.4.4

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hackerman-kl 2026-04-26 21:04:21 +02:00 • committed by Wim Taymans
parent deeea620f6
commit a16f3d704e
8 changed files with 217 additions and 108 deletions
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26
src/modules/module-avb/aecp-vendor-unique-milan-v12.h
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@ -8,17 +8,8 @@
#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. */
/* Milan v1.2 Section 5.4.3.2.1 protocol_id: Avnu OUI-36 00-1B-C5-0A-C +
* 12-bit MVU id 0x100 = 00-1B-C5-0A-C1-00. */
#define AVB_AECP_MVU_PROTOCOL_ID_0 0x00
#define AVB_AECP_MVU_PROTOCOL_ID_1 0x1B
#define AVB_AECP_MVU_PROTOCOL_ID_2 0xC5
@ -26,25 +17,22 @@
#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). */
/* Milan v1.2 Section 5.4.3.2.3 Table 5.18 MVU command codes. */
#define AVB_AECP_MVU_CMD_GET_MILAN_INFO 0x0000
#define AVB_AECP_MVU_CMD_TYPE_U_FLAG_MASK 0x8000
/* Milan v1.2 Section 5.4.3.2.2: r is reserved (must be 0). */
#define AVB_AECP_MVU_CMD_TYPE_R_FLAG_MASK 0x8000
#define AVB_AECP_MVU_CMD_TYPE_CMD_MASK 0x7FFF
/* Milan v1.2 Section 5.4.3.2 Figure 5.2 MVU payload format. */
struct avb_packet_aecp_vendor_unique {
struct avb_packet_aecp_header hdr;
uint8_t protocol_id[6];
uint16_t command_type;
uint16_t reserved;
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);