After UART OTA the master reads the staged partition in 4 KiB blocks (200 B ESP-NOW chunks), waits for per-slave block ACKs, and fixes the final partial block. Slaves reuse ota_uart; send pacing and logging improve reliability. Co-authored-by: Cursor <cursoragent@cursor.com>
77 lines
1.7 KiB
Protocol Buffer
77 lines
1.7 KiB
Protocol Buffer
syntax = "proto3";
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import "nanopb.proto";
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package alox;
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enum EspNowMessageType {
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ESPNOW_UNKNOWN = 0;
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ESPNOW_DISCOVER = 1;
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ESPNOW_SLAVE_INFO = 2;
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ESPNOW_HEARTBEAT = 3;
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ESPNOW_SET_ACCEL_DEADZONE = 4;
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ESPNOW_UNICAST_TEST = 5;
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ESPNOW_OTA_START = 6;
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ESPNOW_OTA_PAYLOAD = 7;
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ESPNOW_OTA_END = 8;
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ESPNOW_OTA_STATUS = 9;
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}
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message EspNowUnicastTest {
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uint32 seq = 1;
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}
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message EspNowDiscover {
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uint32 network = 1;
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}
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message EspNowSlavePresence {
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uint32 network = 1;
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bytes mac = 2;
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uint32 version = 3;
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uint32 slave_id = 4;
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bool available = 5;
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bool used = 6;
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}
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message EspNowAccelDeadzone {
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uint32 deadzone = 1;
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uint32 client_id = 2; // 0 = all slaves; otherwise only matching slave_id applies
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}
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// Master → slave: begin OTA (erase inactive slot; slave replies ESPNOW_OTA_STATUS).
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message EspNowOtaStart {
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uint32 total_size = 1;
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}
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// Master → slave: firmware chunk (up to 200 bytes); slave buffers 4 KiB before flash write.
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message EspNowOtaPayload {
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uint32 seq = 1;
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bytes data = 2 [(nanopb).max_size = 200];
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}
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// Master → slave: finalize OTA (flush, esp_ota_end, set boot partition).
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message EspNowOtaEnd {}
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// Slave → master: status / block ACK (same status codes as UART OtaStatusPayload).
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message EspNowOtaStatus {
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uint32 status = 1;
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uint32 bytes_written = 2;
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uint32 error = 3;
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}
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message EspNowMessage {
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EspNowMessageType type = 1;
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oneof payload {
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EspNowDiscover discover = 2;
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EspNowSlavePresence slave_info = 3;
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EspNowSlavePresence heartbeat = 4;
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EspNowAccelDeadzone accel_deadzone = 5;
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EspNowUnicastTest unicast_test = 6;
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EspNowOtaStart ota_start = 7;
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EspNowOtaPayload ota_payload = 8;
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EspNowOtaEnd ota_end = 9;
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EspNowOtaStatus ota_status = 10;
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}
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}
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