Files
ESP32_COMM/main/relay/ota_relay.cpp
T
小龙虾 164855a36c feat(spi): 更新SPI通信协议为5-wire SPI Link v2并优化握手流程
- 添加DATA_READY引脚(GPIO10)支持5-wire SPI拓扑
- 将otaTransfer调用替换为更通用的transact方法
- 更新SPI引脚定义和通信协议文档
- 修改README.md详细说明新的SPI Link v2协议

docs: 标记旧版OTA中继设计文档为已废弃

- 在esp32_ota_relay_design.md添加废弃警告
- 指向新的SPI Link v2协议文档作为权威来源
- 保留历史文档供参考但停止维护

refactor(can): 增强CANFD桥接错误处理机制

- 扩展canFdSend函数增加gd32_err_out参数
- 透传GD32细分错误码(0xE0-0xE5)到HTTP响应
- 更新HTTP处理器输出完整的错误信息

perf(monitor): 优化按铃事件等待机制

- 修改can_feedback_task.cpp中的事件等待逻辑
- 统一使用takeEvent方法替代checkGd32Request
- 减少不必要的中间变量和函数调用

fix(status): 改进系统状态监控和CPU使用率统计

- 增加CPU任务快照缓冲区容量从16到32
- 添加CPU统计无效时的调试日志输出
- 更新SPI Link统计接口使用新的linkStatus方法

refactor(ota): 优化OTA中继传输和启动等待逻辑

- 调整APP启动等待重试策略(10次->20次, 500ms->300ms)
- 移除数据包传输进度的日志输出减少冗余信息
- 统一使用transact方法进行SPI事务处理

bump(version): 更新固件版本到0.3.44

- 版本号从0.3.43提升至0.3.44
- 更新编译时间和Git哈希值
2026-07-15 00:35:02 +08:00

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/*
* ota_relay.cpp - OTA 中继事件驱动状态机实现
*
* 将原 17 状态"声明式赋值"重构为 7 状态事件驱动架构:
* - 每个协议阶段封装为一个状态 handler
* - processEvent() 根据当前状态分发事件
* - 状态转换显式通过 setState() 完成
* - forwardFirmware() 保留为便捷入口,内部驱动状态机循环
*
* 协议子步骤与加密/Flash 工具方法保持不变。
*/
#include <string.h>
#include <stdlib.h>
#include <inttypes.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"
#include "esp_err.h"
#include "aes/esp_aes.h"
#include "ota_relay.h"
#include "storage/gd32_flash_store.h"
#include "spi_master.h"
#include "protocol.h"
#include "health_monitor.h"
#include "monitor/debug_log.h"
// ★ H4 解耦:OtaRelay 不再直接 #include "ota_coordinator.h",
// 通过 IRelayListener 接口回调通知协调器,依赖方向变为单向。
// ============================================================
// 公共拒绝事件判断(文件内工具)
// ============================================================
// 统一各状态 handler 头部的 ABORT/TIMEOUT/HEALTH_CRIT 拒绝判断。
// 返回 OTA_RESULT_OK 表示非拒绝事件;其他为对应错误码。
// allowHealth: 是否将 RELAY_EVT_HEALTH_CRIT 视为拒绝(仅 TRANSFERRING 传 true)。
static ota_result_t commonReject(relay_event_t e, bool allowHealth = false)
{
if (e == RELAY_EVT_ABORT) return OTA_RESULT_ERR_USER_ABORT;
if (e == RELAY_EVT_TIMEOUT) return OTA_RESULT_ERR_TIMEOUT;
if (allowHealth && e == RELAY_EVT_HEALTH_CRIT) return OTA_RESULT_ERR_HEALTH;
return OTA_RESULT_OK;
}
// ============================================================
// doRelayPackets 重试阈值(与历史代码字面值保持一致,仅命名化)
// ============================================================
// 原代码中 retry_count 阈值:行 1015/1075/1084 用 10U,行 1032/1050 用 3U。
// 含义:NACK/轮询耗尽属于"通信异常",给予较多重试机会(10次);
// 结构化错误属于"GD32 报告具体错误",较少重试(3次)。
static constexpr uint32_t kMaxResendOnNack = 10U; // ACK 失败/轮询耗尽重发上限
static constexpr uint32_t kMaxResendOnStructError = 3U; // 结构化错误重发上限
static constexpr uint32_t kLastPacketAckSeq = 0xF0F0F0F0U; // 末包 ACK 序号约定
// 10 秒无成功帧停刷:跨包级别的背压/卡死检测,比单包 15s 超时更早触发。
static constexpr uint32_t kStallTimeoutMs = 8000U;
// ============================================================
// 静态成员定义
// ============================================================
relay_state_t OtaRelay::relayState = RELAY_IDLE;
uint32_t OtaRelay::relaySeq = 0;
uint32_t OtaRelay::relayTotalPackets = 0;
volatile bool OtaRelay::gd32AppAlive = false;
gd32_version_t OtaRelay::gd32Version = {};
QueueHandle_t OtaRelay::dispatchQueue = NULL;
QueueHandle_t OtaRelay::resultQueue = NULL;
SemaphoreHandle_t OtaRelay::s_stateMutex = NULL;
TaskHandle_t OtaRelay::taskHandle = NULL;
IRelayListener *OtaRelay::s_relayListener = nullptr;
// ── 中继事件监听器(解决 H4 双向耦合)──
void OtaRelay::setRelayListener(IRelayListener *listener)
{
s_relayListener = listener;
}
IRelayListener* OtaRelay::getRelayListener()
{
return s_relayListener;
}
// ── 队列访问器(M3: 封装 public static 成员)──
QueueHandle_t OtaRelay::getDispatchQueue()
{
return dispatchQueue;
}
QueueHandle_t OtaRelay::getResultQueue()
{
return resultQueue;
}
// ============================================================
// 状态表:将每个 relay_state_t 映射到对应的 handler
// ============================================================
const OtaRelay::RelayStateDef OtaRelay::s_stateTable[] = {
{ "IDLE", &OtaRelay::handleIdle },
{ "HANDSHAKING", &OtaRelay::handleHandshaking },
{ "SIZE_NEG", &OtaRelay::handleSizeNeg },
{ "TRANSFERRING", &OtaRelay::handleTransferring },
{ "FINISHING", &OtaRelay::handleFinishing },
{ "DONE", &OtaRelay::handleDone },
// RELAY_ERROR = 0xFF, 索引特殊处理
};
// ============================================================
// 单例 & 线程安全
// ============================================================
OtaRelay& OtaRelay::instance()
{
static OtaRelay inst;
return inst;
}
void OtaRelay::initMutex()
{
if (!s_stateMutex) {
s_stateMutex = xSemaphoreCreateMutex();
}
}
relay_state_t OtaRelay::getState()
{
StateLockGuard lock;
return relayState;
}
bool OtaRelay::getGd32AppAlive()
{
StateLockGuard lock;
return gd32AppAlive;
}
RelaySnapshot OtaRelay::getSnapshot()
{
StateLockGuard lock;
RelaySnapshot s;
s.state = relayState;
s.seq = relaySeq;
s.total_packets = relayTotalPackets;
s.gd32_app_alive = gd32AppAlive;
s.version = gd32Version;
return s;
}
void OtaRelay::setState(relay_state_t s)
{
StateLockGuard lock;
relayState = s;
DEBUG_DBG("OTA", "状态转换: → %s",
(s < RELAY_ERROR) ? s_stateTable[s].name : "ERROR");
}
void OtaRelay::setRelaySeq(uint32_t seq)
{
StateLockGuard lock;
relaySeq = seq;
}
void OtaRelay::setRelayTotalPackets(uint32_t total)
{
StateLockGuard lock;
relayTotalPackets = total;
}
void OtaRelay::setGd32AppAlive(bool alive)
{
StateLockGuard lock;
gd32AppAlive = alive;
}
void OtaRelay::setGd32Version(const gd32_version_t &ver)
{
StateLockGuard lock;
gd32Version = ver;
}
TaskHandle_t OtaRelay::getTaskHandle()
{
return taskHandle;
}
// ============================================================
// 事件分发核心:processEvent()
// ============================================================
ota_result_t OtaRelay::processEvent(relay_event_t event, const uint8_t *payload, size_t len)
{
relay_state_t cur = getState();
// ERROR 状态:仅接受 reset(通过 handleError 的 EVT_START → IDLE)
if (cur == RELAY_ERROR) {
return handleError(event, payload, len);
}
// DONE 状态:仅接受 EVT_START(重新开始)
if (cur == RELAY_DONE) {
return handleDone(event, payload, len);
}
// 查找状态表
if (cur > RELAY_DONE) {
DEBUG_ERR("OTA", "processEvent: 未知状态 %d", (int)cur);
setState(RELAY_ERROR);
return OTA_RESULT_ERR_GD32;
}
StateHandler handler = s_stateTable[cur].handler;
if (!handler) {
DEBUG_ERR("OTA", "processEvent: 状态 %s 无 handler", s_stateTable[cur].name);
setState(RELAY_ERROR);
return OTA_RESULT_ERR_GD32;
}
DEBUG_DBG("OTA", "processEvent: state=%s event=%d",
s_stateTable[cur].name, (int)event);
ota_result_t result = (this->*handler)(event, payload, len);
return result;
}
// ============================================================
// IDLE 状态 handler
// ============================================================
ota_result_t OtaRelay::handleIdle(relay_event_t event, const uint8_t *payload, size_t len)
{
(void)payload;
(void)len;
if (event == RELAY_EVT_START) {
DEBUG_INFO("OTA", "=== 中继状态机启动: IDLE → HANDSHAKING ===");
reset();
setState(RELAY_HANDSHAKING);
return OTA_RESULT_OK;
}
DEBUG_WARN("OTA", "IDLE 忽略事件: %d", (int)event);
return OTA_RESULT_OK;
}
// ============================================================
// HANDSHAKING 状态 handler(阶段1: 握手 + 挑战认证)
// ============================================================
ota_result_t OtaRelay::handleHandshaking(relay_event_t event, const uint8_t *payload, size_t len)
{
(void)payload;
(void)len;
ota_result_t rej = commonReject(event);
if (rej != OTA_RESULT_OK) {
DEBUG_ERR("OTA", "HANDSHAKING 拒绝事件: %d", (int)event);
setState(RELAY_ERROR);
return rej;
}
if (event != RELAY_EVT_START && event != RELAY_EVT_RESP_OK) {
DEBUG_WARN("OTA", "HANDSHAKING 忽略事件: %d", (int)event);
return OTA_RESULT_OK;
}
// 进入 HANDSHAKING 阶段:执行完整的握手 + 认证流程
DEBUG_INFO("OTA", "=== 阶段1: 握手与认证开始 ===");
// 步骤1: 请求 GD32 进入 Bootloader(或确认已在 BOOT)
// 必须 HELLO role=boot 成功,禁止“未确认就盲发握手”
esp_err_t err = requestGd32AppEnterBootloader();
if (err != ESP_OK) {
DEBUG_ERR("OTA", "Bootloader 未就绪: %s", esp_err_to_name(err));
setState(RELAY_ERROR);
return OTA_RESULT_ERR_TIMEOUT;
}
// 步骤2: 发送握手请求
ota_result_t res = doHandshakeReq();
if (res != OTA_RESULT_OK) {
setState(RELAY_ERROR);
return res;
}
// 步骤3: 挑战认证
res = doChallengeAndAuth();
if (res != OTA_RESULT_OK) {
setState(RELAY_ERROR);
return res;
}
// 认证完成 → 进入大小协商
setState(RELAY_SIZE_NEG);
DEBUG_INFO("OTA", "=== 阶段1 认证完成: 安全通道已建立, → SIZE_NEG ===");
return OTA_RESULT_OK;
}
// ============================================================
// SIZE_NEG 状态 handler(阶段2: 固件大小协商)
// ============================================================
ota_result_t OtaRelay::handleSizeNeg(relay_event_t event, const uint8_t *payload, size_t len)
{
(void)payload;
(void)len;
ota_result_t rej = commonReject(event);
if (rej != OTA_RESULT_OK) {
DEBUG_ERR("OTA", "SIZE_NEG 拒绝事件: %d", (int)event);
setState(RELAY_ERROR);
return rej;
}
// 加载元数据获取固件大小
ota_meta_t meta;
if (Gd32FlashStore::instance().metaLoad(&meta) != ESP_OK || meta.total_size == 0) {
DEBUG_ERR("OTA", "SIZE_NEG: 元数据无效");
setState(RELAY_ERROR);
return OTA_RESULT_ERR_STORAGE;
}
DEBUG_INFO("OTA", "=== 阶段2: 固件大小协商 (%" PRIu32 " 字节) ===", meta.total_size);
m_transferTotalPackets = (meta.total_size + GD32_OTA_PACKET_SIZE - 1U) / GD32_OTA_PACKET_SIZE;
m_transferCurrentSeq = 0;
m_transferFlashOffset = 0;
m_transferRetryCount = 0;
/* total 提前写入,前端可显示「共 N 包」;seq 保持 0 直到真正开始转发 */
setRelayTotalPackets(m_transferTotalPackets);
setRelaySeq(0);
ota_result_t res = doSendFirmwareSize(meta.total_size);
if (res != OTA_RESULT_OK) {
setState(RELAY_ERROR);
return res;
}
/* 进入转发前先切状态,避免 status 长时间停在 SIZE_NEG 导致前端像卡在 0/N */
setState(RELAY_TRANSFERRING);
setRelaySeq(0);
DEBUG_INFO("OTA", "=== 阶段2 完成: 总包数=%" PRIu32 ", → TRANSFERRING ===", m_transferTotalPackets);
return OTA_RESULT_OK;
}
// ============================================================
// TRANSFERRING 状态 handler(阶段3: 数据包传输)
// ============================================================
ota_result_t OtaRelay::handleTransferring(relay_event_t event, const uint8_t *payload, size_t len)
{
(void)payload;
(void)len;
ota_result_t rej = commonReject(event, /*allowHealth=*/true);
if (rej != OTA_RESULT_OK) {
DEBUG_ERR("OTA", "TRANSFERRING 拒绝事件: %d", (int)event);
setState(RELAY_ERROR);
return rej;
}
DEBUG_INFO("OTA", "=== 阶段3: 数据包传输 (%" PRIu32 " 包) ===", m_transferTotalPackets);
/* 转发预算:自本阶段起算。正常 ~15ms/包,预算 40ms/包 + 20s 底(上限 120s)。 */
constexpr uint32_t kXferMinMs = 20U * 1000U;
constexpr uint32_t kXferMaxMs = 120U * 1000U;
constexpr uint32_t kXferPerPktMs = 40U;
uint32_t xfer_ms = kXferMinMs + m_transferTotalPackets * kXferPerPktMs;
if (xfer_ms > kXferMaxMs) {
xfer_ms = kXferMaxMs;
}
m_transferDeadline = xTaskGetTickCount() + pdMS_TO_TICKS(xfer_ms);
DEBUG_INFO("OTA", "转发超时预算: %" PRIu32 " ms (%" PRIu32 " 包)", xfer_ms, m_transferTotalPackets);
ota_result_t res = doRelayPackets(m_transferDeadline);
if (res != OTA_RESULT_OK) {
setState(RELAY_ERROR);
return res;
}
setState(RELAY_FINISHING);
DEBUG_INFO("OTA", "=== 阶段3 完成: → FINISHING ===");
return OTA_RESULT_OK;
}
// ============================================================
// FINISHING 状态 handler(阶段4-5: 结束 + APP 验证)
// ============================================================
ota_result_t OtaRelay::handleFinishing(relay_event_t event, const uint8_t *payload, size_t len)
{
(void)payload;
(void)len;
ota_result_t rej = commonReject(event);
if (rej != OTA_RESULT_OK) {
DEBUG_ERR("OTA", "FINISHING 拒绝事件: %d", (int)event);
setState(RELAY_ERROR);
return rej;
}
DEBUG_INFO("OTA", "结束中继,等待 GD32 APP 启动");
ota_result_t res = doFinishAndVerify();
if (res != OTA_RESULT_OK) {
setState(RELAY_ERROR);
return res;
}
setState(RELAY_DONE);
// 成功总结只在 doWaitForAppAlive 打一条,避免多层「完成」刷屏
return OTA_RESULT_OK;
}
// ============================================================
// DONE 状态 handler
// ============================================================
ota_result_t OtaRelay::handleDone(relay_event_t event, const uint8_t *payload, size_t len)
{
(void)payload;
(void)len;
if (event == RELAY_EVT_START) {
// 允许从 DONE 重新开始
DEBUG_INFO("OTA", "DONE → 重新开始");
setState(RELAY_IDLE);
return OTA_RESULT_OK;
}
DEBUG_DBG("OTA", "DONE 忽略事件: %d", (int)event);
return OTA_RESULT_OK;
}
// ============================================================
// ERROR 状态 handler
// ============================================================
ota_result_t OtaRelay::handleError(relay_event_t event, const uint8_t *payload, size_t len)
{
(void)payload;
(void)len;
if (event == RELAY_EVT_START || event == RELAY_EVT_ABORT) {
DEBUG_INFO("OTA", "ERROR → 复位到 IDLE");
reset();
return OTA_RESULT_OK;
}
DEBUG_DBG("OTA", "ERROR 忽略事件: %d", (int)event);
return OTA_RESULT_ERR_GD32;
}
// ============================================================
// forwardFirmware() - 便捷入口,驱动状态机循环
// ============================================================
ota_result_t OtaRelay::forwardFirmware()
{
ota_meta_t meta;
if (Gd32FlashStore::instance().metaLoad(&meta) != ESP_OK) {
return OTA_RESULT_ERR_STORAGE;
}
DEBUG_INFO("OTA", "开始固件转发: %" PRIu32 " 字节", meta.total_size);
/* 中继全程禁止 worker 把 OTA ACK/WAIT 当 EVENT 偷读 */
SpiMaster::instance().setSuppressRingService(true);
// 固件完整性校验
{
esp_err_t verify_err = Gd32FlashStore::instance().metaVerifyChecksum();
if (verify_err != ESP_OK) {
DEBUG_ERR("OTA", "固件完整性校验失败,中止转发");
reset();
return OTA_RESULT_ERR_CRC;
}
}
/* 全局 deadline 在进入 TRANSFERRING 时才启动(见 handleTransferring)。
* 握手 + Boot 擦 Flash(SIZE 阶段长时间 WAIT)不得占用转发预算,
* 否则 1117 包会在擦除后仅剩十余秒被“全局超时”误杀。 */
m_transferDeadline = 0;
// ── 驱动状态机 ──
// 5 步顺序推进:IDLE → HANDSHAKING → SIZE_NEG → TRANSFERRING → FINISHING → DONE
// 每步同步执行对应 handler(内部完成协议交互并推进状态)。
// 任一步返回非 OK 即跳出并复位。
ota_result_t res = OTA_RESULT_OK;
while (true) {
relay_state_t cur = getState();
if (cur == RELAY_DONE || cur == RELAY_ERROR) break;
res = processEvent(RELAY_EVT_START, nullptr, 0);
if (res != OTA_RESULT_OK) {
break;
}
}
if (res != OTA_RESULT_OK) {
DEBUG_ERR("OTA", "中继失败: result=%d, state=%d", (int)res, (int)getState());
reset();
} else {
/* 成功路径:解除按铃抑制(reset 也会做,成功时状态机可能停在 DONE) */
SpiMaster::instance().setSuppressRingService(false);
}
return res;
}
// ============================================================
// 状态机复位
// ============================================================
void OtaRelay::reset()
{
StateLockGuard lock;
relayState = RELAY_IDLE;
relaySeq = 0;
relayTotalPackets = 0;
m_transferTotalPackets = 0;
m_transferCurrentSeq = 0;
m_transferFlashOffset = 0;
m_transferRetryCount = 0;
m_transferDeadline = 0;
Protocol::sessionKeyClear(&m_sessionCtx);
memset(&m_sessionCtx, 0, sizeof(session_ctx_t));
memset(m_kSession, 0, sizeof(m_kSession));
memset(m_nonceServer, 0, sizeof(m_nonceServer));
memset(m_gd32UidRuntime, 0, sizeof(m_gd32UidRuntime));
SpiMaster::instance().setSuppressRingService(false);
DEBUG_INFO("OTA", "状态机已复位 → IDLE");
}
// ============================================================
// 内部工具函数(不变)
// ============================================================
/**
* @brief 检查缓冲区中所有字节是否为指定值。
* @param buf 数据缓冲区。
* @param len 缓冲区长度。
* @param value 目标字节值。
* @return true 所有字节均为指定值,false 否则。
*/
static bool bytesAllValue(const uint8_t *buf, size_t len, uint8_t value)
{
if (!buf || len == 0) return false;
for (size_t i = 0; i < len; ++i) {
if (buf[i] != value) return false;
}
return true;
}
/**
* @brief 本地 AES-128-ECB 加密单块(16字节),使用硬件加速。
* @param key 16 字节密钥。
* @param in 16 字节明文输入。
* @param out 16 字节密文输出。
* @return 0 成功,-1 失败。
*/
int OtaRelay::aes128EcbEncryptBlockLocal(const uint8_t *key, const uint8_t *in, uint8_t *out)
{
esp_aes_context ctx;
esp_aes_init(&ctx);
if (esp_aes_setkey(&ctx, key, 128) != 0) { esp_aes_free(&ctx); return -1; }
int ret = esp_aes_crypt_ecb(&ctx, ESP_AES_ENCRYPT, in, out);
esp_aes_free(&ctx);
return ret;
}
/**
* @brief 记录 GD32 SPI 响应的十六进制负载(调试用)。
* @param stage 当前阶段名称。
* @param resp_type 响应类型字节。
* @param payload 响应负载数据。
* @param len 负载长度。
*/
void OtaRelay::logRespPayload(const char *stage, uint8_t resp_type, const uint8_t *payload, size_t len)
{
char hex[193] = {0};
size_t n = (len > 32U) ? 32U : len;
for (size_t i = 0; i < n; ++i)
snprintf(&hex[i * 2], sizeof(hex) - i * 2, "%02X", payload[i]);
DEBUG_DBG("OTA", "%s resp: type=0x%02X len=%u payload[%u]=%s%s",
stage, resp_type, (unsigned)len, (unsigned)n,
n > 0 ? hex : "<empty>", len > n ? "..." : "");
}
/**
* @brief 循环轮询 SPI 直到响应不再是 WAIT 类型,超过最大轮询次数后放弃。
* @param stage 当前阶段名称(日志用)。
* @param resp_type 输入/输出响应类型(初始为 SPI_OTA_RSP_WAIT)。
* @param resp_payload 输出响应负载缓冲区。
* @param resp_max 响应负载缓冲区最大长度。
* @param resp_len 输出实际响应长度。
* @param timeout_ms 单次 SPI 轮询超时(毫秒)。
* @param max_wait_rounds 最大 WAIT 轮询次数。
* @return ESP_OK 成功,ESP_ERR_TIMEOUT 超时。
*/
esp_err_t OtaRelay::waitUntilNotWait(const char *stage, uint8_t *resp_type,
uint8_t *resp_payload, size_t resp_max,
size_t *resp_len, uint32_t timeout_ms, uint32_t max_wait_rounds)
{
if (!resp_type) return ESP_ERR_INVALID_ARG;
uint32_t round = 0;
while (*resp_type == SPI_OTA_RSP_WAIT && round < max_wait_rounds) {
++round;
/* 进度/等待文案只走前端;此处不打 INFO,避免 /logs 刷屏 */
esp_err_t err = SpiMaster::instance().otaPollResponse(resp_type, resp_payload, resp_max, resp_len, timeout_ms);
if (err == ESP_ERR_TIMEOUT) { *resp_type = SPI_OTA_RSP_WAIT; continue; }
if (err != ESP_OK) return err;
logRespPayload(stage, *resp_type, resp_payload, resp_len ? *resp_len : 0);
}
return ESP_OK;
}
/**
* @brief 检查响应负载是否为带指定序号的结构化 ACK(0xBA 0xC0 + seq32)。
* @param payload 响应负载数据。
* @param len 负载长度。
* @param expected_seq 期望的序号。
* @return true 匹配,false 不匹配。
*/
bool OtaRelay::isStructuredAckWithSeq(const uint8_t *payload, size_t len, uint32_t expected_seq)
{
if (!payload || len < 6) return false;
if (payload[0] != 0xBA || payload[1] != 0xC0) return false;
uint32_t seq = (uint32_t)payload[2] | ((uint32_t)payload[3] << 8) |
((uint32_t)payload[4] << 16) | ((uint32_t)payload[5] << 24);
return seq == expected_seq;
}
/**
* @brief 解析结构化错误响应(0xBA 0xC0 + seq32 + err_code)。
* @param payload 响应负载数据。
* @param len 负载长度。
* @param seq_out 输出序号(可为 nullptr)。
* @param err_out 输出错误码(可为 nullptr)。
* @return true 成功解析为结构化错误,false 不是。
*/
bool OtaRelay::parseStructuredError(const uint8_t *payload, size_t len, uint32_t *seq_out, uint8_t *err_out)
{
if (!payload || len < 7) return false;
if (payload[0] != 0xBA || payload[1] != 0xC0) return false;
if (seq_out) *seq_out = (uint32_t)payload[2] | ((uint32_t)payload[3] << 8) |
((uint32_t)payload[4] << 16) | ((uint32_t)payload[5] << 24);
if (err_out) *err_out = payload[6];
return true;
}
/** @brief 检查响应是否为握手回显 ACK(0x00 0xAC)。 */
bool OtaRelay::isHandshakeEchoAck(const uint8_t *payload, size_t len)
{ return payload && len >= 2U && payload[0] == 0x00U && payload[1] == 0xACU; }
/** @brief 检查响应是否为挑战认证 ACK(36字节挑战响应)。 */
bool OtaRelay::isChallengePayloadAck(const uint8_t *payload, size_t len)
{ return payload && len == GD32_CHALLENGE_RESPONSE_LEN; }
/** @brief 检查响应是否为确认明文 ACK(0xBA 0xC0)。 */
bool OtaRelay::isConfirmPlainAck(const uint8_t *payload, size_t len)
{ return payload && len == 2U && payload[0] == 0xBAU && payload[1] == 0xC0U; }
/** @brief 检查响应是否为固件大小 seq=0 的结构化 ACK。 */
bool OtaRelay::isSizeSeq0Ack(const uint8_t *payload, size_t len)
{ return isStructuredAckWithSeq(payload, len, 0U); }
/** @brief 检查响应是否为结束指令 ACK(0x0A 0xAC)。 */
bool OtaRelay::isFinishPlainAck(const uint8_t *payload, size_t len)
{
if (!payload) return false;
if (len == 2U && payload[0] == 0x0AU && payload[1] == 0xACU) return true;
return false;
}
/**
* @brief 轮询 SPI 直到匹配指定的 ACK 形状,处理 WAIT 和过期 ACK。
* @param stage 当前阶段名称。
* @param resp_type 输入/输出响应类型。
* @param resp_payload 输入/输出响应负载。
* @param resp_max 响应负载缓冲区最大长度。
* @param resp_len 输入/输出实际响应长度。
* @param poll_timeout_ms 单次 SPI 轮询超时。
* @param wait_rounds 最大 WAIT 轮询次数。
* @param maxExtraPolls 最大额外轮询次数。
* @param matcher ACK 形状匹配函数。
* @return ESP_OK 成功,其他错误码表示失败。
*/
esp_err_t OtaRelay::pollUntilExpectedAckShape(const char *stage,
uint8_t *resp_type, uint8_t *resp_payload,
size_t resp_max, size_t *resp_len,
uint32_t poll_timeout_ms, uint32_t wait_rounds,
uint32_t maxExtraPolls,
bool (*matcher)(const uint8_t *, size_t))
{
if (!stage || !resp_type || !resp_payload || !resp_len || !matcher)
return ESP_ERR_INVALID_ARG;
esp_err_t err = ESP_OK;
if (*resp_type == SPI_OTA_RSP_WAIT) {
err = instance().waitUntilNotWait(stage, resp_type, resp_payload, resp_max, resp_len, poll_timeout_ms, wait_rounds);
if (err != ESP_OK) return err;
}
for (uint32_t extra = 0; extra < maxExtraPolls; ++extra) {
if (*resp_type == SPI_OTA_RSP_ACK) {
if (matcher(resp_payload, *resp_len)) return ESP_OK;
uint32_t err_seq = 0; uint8_t err_code = 0;
if (parseStructuredError(resp_payload, *resp_len, &err_seq, &err_code)) return ESP_OK;
DEBUG_WARN("OTA", "%s stale ACK, poll more: len=%u", stage, (unsigned)*resp_len);
} else if (*resp_type == SPI_OTA_RSP_ERROR || *resp_type == 0x7FU) {
/* 明确错误帧:交给调用方判失败,不再空转 poll */
return ESP_OK;
} else {
/* 非 ACK(含 0xC1 事件/空 type):继续 poll 等延迟响应,勿提前返回 */
DEBUG_WARN("OTA", "%s unexpected type=0x%02X, poll more", stage, *resp_type);
}
*resp_len = 0;
err = SpiMaster::instance().otaPollResponse(resp_type, resp_payload, resp_max, resp_len, poll_timeout_ms);
if (err != ESP_OK) return err;
logRespPayload(stage, *resp_type, resp_payload, *resp_len);
if (*resp_type == SPI_OTA_RSP_WAIT) {
err = instance().waitUntilNotWait(stage, resp_type, resp_payload, resp_max, resp_len, poll_timeout_ms, wait_rounds);
if (err != ESP_OK) return err;
}
}
return ESP_OK;
}
/**
* @brief 解析挑战响应负载,验证 nonce、派生会话密钥和 UID。
* @param resp_payload GD32 响应负载(36字节)。
* @param resp_len 响应负载长度。
* @param out_k_session 输出 16 字节会话密钥。
* @param out_uid 输出 12 字节 GD32 UID。
* @return true 验证通过,false 失败。
*/
bool OtaRelay::parseAndVerifyChallengePayload(const uint8_t *resp_payload, size_t resp_len,
uint8_t *out_k_session, uint8_t *out_uid)
{
if (!resp_payload || !out_k_session || !out_uid) return false;
if (resp_len != GD32_CHALLENGE_RESPONSE_LEN) {
DEBUG_ERR("OTA", "CHALLENGE: invalid len=%u", (unsigned)resp_len); return false;
}
const uint8_t *uid = resp_payload;
const uint8_t *nonce_frag = resp_payload + 12;
const uint8_t *encrypted_ksession = resp_payload + 20;
if (memcmp(nonce_frag, instance().m_nonceServer + 8, 8) != 0) {
DEBUG_ERR("OTA", "CHALLENGE: nonce mismatch"); return false;
}
uint8_t K_session[16] = {0};
if (aes128EcbEncryptBlockLocal(MASTER_KEY, instance().m_nonceServer, K_session) != 0) {
DEBUG_ERR("OTA", "CHALLENGE: derive K_session failed"); return false;
}
uint8_t expected_encrypted[16] = {0};
if (aes128EcbEncryptBlockLocal(MASTER_KEY, K_session, expected_encrypted) != 0) {
DEBUG_ERR("OTA", "CHALLENGE: encrypt K_session failed"); return false;
}
if (memcmp(encrypted_ksession, expected_encrypted, 16) != 0) {
DEBUG_ERR("OTA", "CHALLENGE: K_session mismatch"); return false;
}
memcpy(out_k_session, K_session, 16);
memcpy(out_uid, uid, GD32_UID_LEN);
if (bytesAllValue(out_uid, GD32_UID_LEN, 0x00U) || bytesAllValue(out_uid, GD32_UID_LEN, 0xFFU)) {
DEBUG_ERR("OTA", "CHALLENGE: UID all 0 or FF"); return false;
}
return true;
}
/**
* @brief AES-128-ECB 加密 48 字节(分 3 个 16 字节块)。
* @param key 16 字节密钥。
* @param in 48 字节明文输入。
* @param out 48 字节密文输出。
* @return true 全部加密成功,false 任一块失败。
*/
bool OtaRelay::aes128EcbEncrypt48Bytes(const uint8_t *key, const uint8_t *in, uint8_t *out)
{
for (int i = 0; i < 3; ++i)
if (aes128EcbEncryptBlockLocal(key, in + i * 16, out + i * 16) != 0) return false;
return true;
}
/**
* @brief 使用 CRC32(IEEE 多项式 0xEDB88320)对 key+data48 计算 4 字节校验值。
* @param key 16 字节密钥(混入 CRC)。
* @param data48 48 字节数据。
* @param output 输出 4 字节 CRC32 值(小端序)。
*/
void OtaRelay::calculateCrc32WithKey(const uint8_t *key, const uint8_t *data48, uint8_t *output)
{
uint32_t crc = 0xFFFFFFFFU;
for (int i = 0; i < 16; ++i) { crc ^= key[i]; for (int j = 0; j < 8; ++j) crc = (crc >> 1) ^ (0xEDB88320U & (0U - (crc & 1U))); }
for (size_t i = 0; i < 48U; ++i) { crc ^= data48[i]; for (int j = 0; j < 8; ++j) crc = (crc >> 1) ^ (0xEDB88320U & (0U - (crc & 1U))); }
crc ^= 0xFFFFFFFFU;
output[0] = (uint8_t)(crc & 0xFFU); output[1] = (uint8_t)((crc >> 8) & 0xFFU);
output[2] = (uint8_t)((crc >> 16) & 0xFFU); output[3] = (uint8_t)((crc >> 24) & 0xFFU);
}
// ============================================================
// 协议子步骤实现
// ============================================================
/** @brief 协议子步骤:请求 GD32 APP 进入 Bootloader OTA 模式。 */
esp_err_t OtaRelay::requestGd32AppEnterBootloader()
{
DEBUG_INFO("OTA", "尝试通知 GD32 APP 进入 Bootloader OTA 窗口");
/* 1) 探测:已在 BOOT 则零开销直接成功 */
esp_err_t hello_err = SpiMaster::instance().hello(1500U, 0U);
if (hello_err == ESP_OK && SpiMaster::instance().gd32Role() == V2_ROLE_BOOT) {
DEBUG_INFO("OTA", "GD32 已在 Bootloader (HELLO role=boot),跳过 ENTER_BOOT");
return ESP_OK;
}
/* 2) 发 ENTER_BOOT(ACK 可选;发送后静默,门控是 BOOT HELLO) */
if (hello_err != ESP_OK) {
DEBUG_WARN("OTA", "探测 HELLO 未成功: %s,仍尝试 ENTER_BOOT",
esp_err_to_name(hello_err));
}
esp_err_t boot_err = SpiMaster::instance().appRequestBootloader();
if (boot_err != ESP_OK) {
DEBUG_WARN("OTA", "ENTER_BOOT 发送失败: %s", esp_err_to_name(boot_err));
}
/* 3) 硬门控:HELLO role=boot(给 APP 擦页+复位+BOOT 起机更长时间) */
esp_err_t wait_err = SpiMaster::instance().waitForBootloaderReady(12000);
if (wait_err == ESP_OK) {
DEBUG_INFO("OTA", "Bootloader 已就绪 (HELLO role=boot)");
return ESP_OK;
}
/* 4) 一次重试:仍为 APP 时再 HELLO + ENTER_BOOT */
DEBUG_WARN("OTA", "BOOT HELLO 超时,二次 HELLO+ENTER_BOOT 重试...");
hello_err = SpiMaster::instance().hello(2000U, 0U);
if (hello_err == ESP_OK && SpiMaster::instance().gd32Role() == V2_ROLE_BOOT) {
DEBUG_INFO("OTA", "二次探测已在 Bootloader,继续");
return ESP_OK;
}
boot_err = SpiMaster::instance().appRequestBootloader();
if (boot_err != ESP_OK) {
DEBUG_WARN("OTA", "二次 ENTER_BOOT 未确认 ACK: %s(仍等 BOOT HELLO)",
esp_err_to_name(boot_err));
}
wait_err = SpiMaster::instance().waitForBootloaderReady(12000);
if (wait_err != ESP_OK) {
DEBUG_ERR("OTA", "Bootloader HELLO 就绪失败(重试后): %s", esp_err_to_name(wait_err));
return wait_err;
}
DEBUG_INFO("OTA", "Bootloader 已就绪 (HELLO role=boot, 二次)");
return ESP_OK;
}
/** @brief 协议子步骤:发送握手请求(0x00 0xAC)并等待 GD32 回显 ACK。
* @param attempts 最大尝试次数,默认 20。先用 3 次快速探测 GD32 是否已在 BOOT。 */
ota_result_t OtaRelay::doHandshakeReq(uint32_t attempts)
{
DEBUG_INFO("OTA", "--- 握手请求 (max=%" PRIu32 ") ---", attempts);
uint8_t payload[] = {0x00, 0xAC};
uint8_t last_resp_type = 0U;
size_t last_resp_len = 0U;
esp_err_t last_err = ESP_OK;
constexpr uint32_t kHandshakeReqTimeoutMs = 800U;
constexpr uint32_t kHandshakePollTimeoutMs = 800U;
constexpr uint32_t kHandshakeRetryGapMs = 50U;
for (uint32_t attempt = 0U; attempt < attempts; ++attempt) {
uint8_t resp_type = 0U;
uint8_t resp_payload[64] = {0};
size_t resp_len = 0U;
/* 每若干次失败做一次 HELLO 重同步(session/从机状态) */
if (attempt > 0U && (attempt % 5U) == 0U) {
esp_err_t hr = SpiMaster::instance().hello(1500U, V2_ROLE_BOOT);
DEBUG_WARN("OTA", "HANDSHAKE 前 HELLO 重同步: %s role=%u",
esp_err_to_name(hr), SpiMaster::instance().gd32Role());
}
/* transact 已含延迟一拍两步法;再经 pollUntil 处理 WAIT/陈旧 ACK。 */
const uint32_t total_timeout_ms = kHandshakeReqTimeoutMs + kHandshakePollTimeoutMs;
esp_err_t err = SpiMaster::instance().transact(SPI_OTA_CMD_REQ, payload, sizeof(payload),
&resp_type, resp_payload, sizeof(resp_payload), &resp_len,
total_timeout_ms);
last_err = err;
last_resp_type = resp_type;
last_resp_len = resp_len;
if (err == ESP_OK) {
logRespPayload("HANDSHAKE_REQ", resp_type, resp_payload, resp_len);
err = pollUntilExpectedAckShape("HANDSHAKE_REQ", &resp_type, resp_payload,
sizeof(resp_payload), &resp_len,
kHandshakePollTimeoutMs, 2, 2, OtaRelay::isHandshakeEchoAck);
last_err = err;
last_resp_type = resp_type;
last_resp_len = resp_len;
if (err == ESP_OK && resp_type == SPI_OTA_RSP_ACK && isHandshakeEchoAck(resp_payload, resp_len)) {
DEBUG_INFO("OTA", "握手请求已确认 (attempt=%" PRIu32 ")", attempt + 1U);
return OTA_RESULT_OK;
}
}
DEBUG_WARN("OTA", "HANDSHAKE_REQ 未就绪,重试 %" PRIu32 "/%" PRIu32 ": err=%d resp_type=0x%02X resp_len=%u",
attempt + 1U, attempts, last_err, last_resp_type, (unsigned)last_resp_len);
vTaskDelay(pdMS_TO_TICKS(kHandshakeRetryGapMs));
}
DEBUG_ERR("OTA", "HANDSHAKE_REQ 失败, err=%d, resp_type=0x%02X, resp_len=%zu",
last_err, last_resp_type, last_resp_len);
return OTA_RESULT_ERR_TIMEOUT;
}
/** @brief 协议子步骤:执行挑战认证(发送 nonce、验证响应、派生会话密钥、发送确认)。 */
ota_result_t OtaRelay::doChallengeAndAuth()
{
uint8_t resp_type = 0;
uint8_t resp_payload[64] = {0};
size_t resp_len = 0;
uint32_t timestamp = xTaskGetTickCount();
uint32_t mem_addr = (uint32_t)(uintptr_t)m_nonceServer;
uint32_t rand_seed = 0x12345678;
Protocol::instance().scrambleGenerate(timestamp, mem_addr, rand_seed, m_nonceServer);
DEBUG_INFO("OTA", "--- 认证步骤 1: 发送 CHALLENGE ---");
DEBUG_INFO("OTA", "发送 nonce_server (16B), timestamp=0x%08" PRIX32, timestamp);
esp_err_t err = SpiMaster::instance().transact(SPI_OTA_CMD_REQ, m_nonceServer, 16,
&resp_type, resp_payload, sizeof(resp_payload), &resp_len, 5000);
logRespPayload("CHALLENGE", resp_type, resp_payload, resp_len);
err = pollUntilExpectedAckShape("CHALLENGE", &resp_type, resp_payload,
sizeof(resp_payload), &resp_len,
1000, 12, 8, OtaRelay::isChallengePayloadAck);
if (err != ESP_OK || resp_type != SPI_OTA_RSP_ACK || !isChallengePayloadAck(resp_payload, resp_len)) {
DEBUG_ERR("OTA", "CHALLENGE 发送失败, err=%d, resp_type=0x%02X, resp_len=%zu", err, resp_type, resp_len);
return OTA_RESULT_ERR_TIMEOUT;
}
DEBUG_INFO("OTA", "已收到 GD32 握手数据包");
if (!parseAndVerifyChallengePayload(resp_payload, resp_len, m_kSession, m_gd32UidRuntime)) {
DEBUG_ERR("OTA", "CHALLENGE 解包/校验失败");
return OTA_RESULT_ERR_AUTH;
}
uint8_t plaintext[16];
for (int i = 0; i < 16; ++i) {
plaintext[i] = m_nonceServer[i] ^ 0x55U;
}
uint8_t encrypted_confirm[16] = {0};
if (aes128EcbEncryptBlockLocal(m_kSession, plaintext, encrypted_confirm) != 0) {
DEBUG_ERR("OTA", "加密确认块失败");
return OTA_RESULT_ERR_AUTH;
}
DEBUG_INFO("OTA", "--- 认证步骤 2: 发送 SESSION_KEY/CONFIRM ---");
resp_len = 0;
err = SpiMaster::instance().transact(SPI_OTA_CMD_REQ, encrypted_confirm, 16,
&resp_type, resp_payload, sizeof(resp_payload), &resp_len, 3000);
logRespPayload("CONFIRM", resp_type, resp_payload, resp_len);
err = pollUntilExpectedAckShape("CONFIRM", &resp_type, resp_payload,
sizeof(resp_payload), &resp_len,
1000, 8, 8, OtaRelay::isConfirmPlainAck);
if (err != ESP_OK || resp_type != SPI_OTA_RSP_ACK || !isConfirmPlainAck(resp_payload, resp_len)) {
DEBUG_ERR("OTA", "SESSION_KEY/CONFIRM 失败, err=%d, resp_type=0x%02X, resp_len=%zu", err, resp_type, resp_len);
return OTA_RESULT_ERR_TIMEOUT;
}
{
char hex[73] = {0};
size_t n = (resp_len > 36U) ? 36U : resp_len;
for (size_t i = 0; i < n; ++i) {
snprintf(&hex[i * 2], sizeof(hex) - i * 2, "%02X", resp_payload[i]);
}
DEBUG_INFO("OTA", "CONFIRM 验证通过, resp_len=%zu, payload=%s", resp_len, hex);
}
Protocol::sessionKeyInit(&m_sessionCtx, m_kSession);
return OTA_RESULT_OK;
}
/** @brief 协议子步骤:发送固件总大小给 GD32 并等待 seq=0 的确认。 */
ota_result_t OtaRelay::doSendFirmwareSize(uint32_t size)
{
uint8_t resp_type = 0;
uint8_t resp_payload[32] = {0};
size_t resp_len = 0;
DEBUG_INFO("OTA", "固件大小: %" PRIu32 " 字节", size);
uint8_t size_payload[4];
size_payload[0] = (uint8_t)(size & 0xFF);
size_payload[1] = (uint8_t)((size >> 8) & 0xFF);
size_payload[2] = (uint8_t)((size >> 16) & 0xFF);
size_payload[3] = (uint8_t)((size >> 24) & 0xFF);
esp_err_t err = SpiMaster::instance().transact(SPI_OTA_CMD_DATA, size_payload, sizeof(size_payload),
&resp_type, resp_payload, sizeof(resp_payload), &resp_len, 3000);
logRespPayload("SEND_SIZE", resp_type, resp_payload, resp_len);
/* GD32 收到 SIZE 后擦 Flash,先 WAIT 再 ACK(seq=0);进度由前端读 status,不打过程 INFO */
err = pollUntilExpectedAckShape("SEND_SIZE", &resp_type, resp_payload,
sizeof(resp_payload), &resp_len,
/*poll_timeout_ms=*/500,
/*wait_rounds=*/120,
/*maxExtraPolls=*/40,
OtaRelay::isSizeSeq0Ack);
if (err != ESP_OK || resp_type != SPI_OTA_RSP_ACK || !isSizeSeq0Ack(resp_payload, resp_len)) {
DEBUG_ERR("OTA", "SEND_SIZE 失败, err=%d, resp_type=0x%02X, resp_len=%zu", err, resp_type, resp_len);
return OTA_RESULT_ERR_TIMEOUT;
}
SpiMaster::instance().confirmTxSeqAccepted();
DEBUG_INFO("OTA", "大小协商完成: %" PRIu32 " 字节,GD32 已就绪收包", size);
return OTA_RESULT_OK;
}
/**
* @brief 协议子步骤:逐包转发固件数据给 GD32。
* 流程:从 Flash 读取 → AES 加密 → SPI 发送 → 等待 ACK → 失败则重发。
* 每 OTA_PACKET_HEALTH_CHECK_INTERVAL 包执行一次健康检查。
*/
ota_result_t OtaRelay::prepareRelayPacket(uint32_t seq, const ota_meta_t &meta, uint8_t tx_buf[64], size_t *out_chunk_size)
{
uint8_t plain48[GD32_OTA_PACKET_SIZE];
memset(plain48, 0xFF, sizeof(plain48));
size_t chunk_size = GD32_OTA_PACKET_SIZE;
if (seq == m_transferTotalPackets - 1) {
chunk_size = meta.total_size - (seq * GD32_OTA_PACKET_SIZE);
}
esp_err_t err = Gd32FlashStore::instance().flashReadChunk(m_transferFlashOffset, plain48, chunk_size);
if (err != ESP_OK) {
DEBUG_ERR("OTA", "Flash 读取失败, offset=%" PRIu32 ", err=%d", m_transferFlashOffset, err);
return OTA_RESULT_ERR_STORAGE;
}
/* session_num = nonce_server 前 4 字节,GD32 端做校验防重放/乱序 */
memcpy(&tx_buf[0], m_nonceServer, 4);
tx_buf[4] = (uint8_t)(seq & 0xFFU);
tx_buf[5] = (uint8_t)((seq >> 8) & 0xFFU);
tx_buf[6] = 0x00;
tx_buf[7] = 0x00;
if (!aes128EcbEncrypt48Bytes(m_kSession, plain48, &tx_buf[8])) {
DEBUG_ERR("OTA", "包 %" PRIu32 " 加密失败", seq);
return OTA_RESULT_ERR_AUTH;
}
uint32_t if_end = (seq == m_transferTotalPackets - 1) ? 0xFFFFFFFFU : 0x00000000U;
tx_buf[56] = (uint8_t)(if_end & 0xFFU);
tx_buf[57] = (uint8_t)((if_end >> 8) & 0xFFU);
tx_buf[58] = (uint8_t)((if_end >> 16) & 0xFFU);
tx_buf[59] = (uint8_t)((if_end >> 24) & 0xFFU);
calculateCrc32WithKey(m_kSession, plain48, &tx_buf[60]);
DEBUG_DBG("OTA", "包 %" PRIu32 ": chunk=%u if_end=0x%08" PRIX32 " crc32=%02X%02X%02X%02X",
seq, (unsigned)chunk_size, if_end,
tx_buf[60], tx_buf[61], tx_buf[62], tx_buf[63]);
m_transferCurrentSeq = seq;
if (out_chunk_size) *out_chunk_size = chunk_size;
return OTA_RESULT_OK;
}
bool OtaRelay::sendRelayPacketWithRetry(uint32_t seq, const uint8_t tx_buf[64], size_t chunk_size, ota_result_t *out_result)
{
uint8_t resp_type = 0;
uint8_t resp_payload[32] = {0};
size_t resp_len = 0;
const uint32_t expected_ack = (seq == m_transferTotalPackets - 1) ? kLastPacketAckSeq : (seq + 1U);
/*
* 协议要点:
* - GD32 ISR 收 DATA 后立刻回 WAIT,主循环 AES/Flash 后再 ACK。
* - 一旦见过 WAIT,说明包已进从机;再发 DATA = DUP-SEQ,只会反复 WAIT。
* - 因此:见 WAIT 后只 poll;仅「完全无响应」才允许重发 DATA。
*/
constexpr uint32_t kMaxDataSends = 3U;
constexpr uint32_t kAckWaitMs = 6000U; /* 单次发送后等 ACK 上限(覆盖 GD32 增量 drain) */
constexpr uint32_t kPollSliceMs = 80U;
TickType_t pkt_start = xTaskGetTickCount();
bool saw_wait = false;
for (uint32_t send_i = 0; send_i < kMaxDataSends; ++send_i) {
/* 已见 WAIT:禁止再发 DATA,只延长 poll */
if (saw_wait && send_i > 0U) {
DEBUG_INFO("OTA", "包 %" PRIu32 " 已见 WAIT,继续 poll 不重发", seq);
} else {
resp_len = 0;
resp_type = 0;
esp_err_t err = SpiMaster::instance().transact(
SPI_OTA_CMD_DATA, tx_buf, 64,
&resp_type, resp_payload, sizeof(resp_payload), &resp_len, 1200);
logRespPayload("DATA_PACKET", resp_type, resp_payload, resp_len);
if (err == ESP_OK && resp_type == SPI_OTA_RSP_WAIT) {
saw_wait = true;
}
if (err == ESP_OK && resp_type == SPI_OTA_RSP_ACK &&
isStructuredAckWithSeq(resp_payload, resp_len, expected_ack)) {
SpiMaster::instance().confirmTxSeqAccepted();
m_transferFlashOffset += (uint32_t)chunk_size;
return false;
}
}
const TickType_t poll_deadline = xTaskGetTickCount() + pdMS_TO_TICKS(kAckWaitMs);
TickType_t last_hb = xTaskGetTickCount();
while (xTaskGetTickCount() < poll_deadline) {
if ((xTaskGetTickCount() - last_hb) >= pdMS_TO_TICKS(1000)) {
DEBUG_INFO("OTA", "包 %" PRIu32 " 等 ACK… send=%" PRIu32 " type=0x%02X wait=%d credit=%u",
seq, send_i, resp_type, (int)saw_wait,
(unsigned)SpiMaster::instance().remoteCredit());
last_hb = xTaskGetTickCount();
}
esp_err_t err = SpiMaster::instance().otaPollResponse(
&resp_type, resp_payload, sizeof(resp_payload), &resp_len, kPollSliceMs);
if (err == ESP_OK && resp_type == SPI_OTA_RSP_WAIT) {
saw_wait = true;
continue;
}
if (err == ESP_OK && resp_type == SPI_OTA_RSP_ACK) {
if (isStructuredAckWithSeq(resp_payload, resp_len, expected_ack)) {
SpiMaster::instance().confirmTxSeqAccepted();
m_transferFlashOffset += (uint32_t)chunk_size;
return false;
}
uint32_t err_seq = 0;
uint8_t err_code = 0;
if (parseStructuredError(resp_payload, resp_len, &err_seq, &err_code) &&
err_seq == seq) {
DEBUG_WARN("OTA", "包 %" PRIu32 " 结构化错误 err=0x%02X", seq, err_code);
if (err_code == 0x04U) {
*out_result = OTA_RESULT_ERR_CRC;
return true;
}
saw_wait = false; /* 允许带错误码的重发 */
break;
}
/* 陈旧 ACK,继续 poll */
}
}
/* 超时:仅当从未见 WAIT 时才重发 DATA;见过 WAIT 则再 poll 一轮 */
if (saw_wait) {
if (send_i + 1U >= kMaxDataSends) {
break;
}
/* 把下一轮当作「只 poll」:send_i 增加但 saw_wait 使跳过 transfer */
continue;
}
if (send_i + 1U < kMaxDataSends) {
DEBUG_WARN("OTA", "包 %" PRIu32 " 无 WAIT/ACK,重发 DATA (%" PRIu32 "/%" PRIu32 ")",
seq, send_i + 1U, kMaxDataSends);
vTaskDelay(pdMS_TO_TICKS(2));
}
}
DEBUG_ERR("OTA", "包 %" PRIu32 " 失败 (elapsed=%" PRIu32 " ms credit=%u type=0x%02X saw_wait=%d)",
seq,
(uint32_t)((xTaskGetTickCount() - pkt_start) * portTICK_PERIOD_MS),
(unsigned)SpiMaster::instance().remoteCredit(),
resp_type, (int)saw_wait);
*out_result = OTA_RESULT_ERR_TIMEOUT;
return true;
}
ota_result_t OtaRelay::doRelayPackets(TickType_t deadline_tick)
{
ota_meta_t meta;
if (Gd32FlashStore::instance().metaLoad(&meta) != ESP_OK) {
DEBUG_ERR("OTA", "元数据加载失败");
return OTA_RESULT_ERR_STORAGE;
}
uint8_t tx_buf[64] = {0};
ota_result_t result = OTA_RESULT_OK;
TickType_t last_success_tick = xTaskGetTickCount();
for (uint32_t seq = 0; seq < m_transferTotalPackets; seq++) {
// 健康检查(每 OTA_PACKET_HEALTH_CHECK_INTERVAL 包 + 首末包)
if ((seq % OTA_PACKET_HEALTH_CHECK_INTERVAL) == 0 || seq == 0 || seq == m_transferTotalPackets - 1) {
health_status_t health = HealthMonitor::instance().checkBeforeOtaRelay();
if (health == HEALTH_MON_SHUTDOWN || health == HEALTH_MON_CRITICAL) {
DEBUG_ERR("OTA", "健康检查危险,中止 OTA");
return OTA_RESULT_ERR_HEALTH;
}
}
// 全局超时检查
if (deadline_tick != 0 && xTaskGetTickCount() >= deadline_tick) {
DEBUG_ERR("OTA", "全局超时: 包 %" PRIu32 "/%" PRIu32 " 已超限,中止转发", seq, m_transferTotalPackets);
return OTA_RESULT_ERR_USER_ABORT;
}
// 停刷检测:自上一包成功 ACK 起超过 kStallTimeoutMs 则中止
if ((xTaskGetTickCount() - last_success_tick) >= pdMS_TO_TICKS(kStallTimeoutMs)) {
DEBUG_ERR("OTA", "10 秒无成功帧, 中止转发: seq=%" PRIu32 "/%" PRIu32, seq, m_transferTotalPackets);
return OTA_RESULT_ERR_TIMEOUT;
}
size_t chunk_size = 0;
result = prepareRelayPacket(seq, meta, tx_buf, &chunk_size);
if (result != OTA_RESULT_OK) {
return result;
}
/* 先写入「正在发第 N 包」,前端 /system/status 能看到卡在哪 */
setRelaySeq(seq);
// 发送单包并等待 ACK(内含重试循环)
if (sendRelayPacketWithRetry(seq, tx_buf, chunk_size, &result)) {
DEBUG_ERR("OTA", "中止于包 %" PRIu32 "/%" PRIu32 " result=%d",
seq, m_transferTotalPackets, (int)result);
return result; // 中止
}
setRelaySeq(seq + 1);
last_success_tick = xTaskGetTickCount();
}
DEBUG_INFO("OTA", "全部数据包已转发: %" PRIu32 " 包", m_transferTotalPackets);
return result;
}
// ============================================================
// ============================================================
// 统一 OtaRelay 内部两处 APP 探测逻辑(doWaitForAppAlive 轮询 + taskEntry 启动探测)。
// 成功:setGd32AppAlive(true) + setGd32Version + 打印版本号;失败:打印 warning。
// 注:OtaCoordinator::probeGd32AppOnce 逻辑相似,但因依赖方向不调用本函数。
bool OtaRelay::probeAndCacheAppAlive(uint32_t timeout_ms, uint32_t *out_uptime)
{
uint32_t uptime = 0;
gd32_version_t ver = {};
esp_err_t err = SpiMaster::instance().appPing(timeout_ms, &uptime, &ver);
if (err == ESP_OK) {
// 持锁一次性写入两个状态字段,保证 getSnapshot() 读取一致
StateLockGuard lock;
gd32AppAlive = true;
gd32Version = ver;
if (out_uptime) *out_uptime = uptime;
// 启动探测等场景用 DBG;OTA 成功路径由 doWaitForAppAlive 统一 INFO 总结
DEBUG_DBG("OTA", "GD32 APP 存活: uptime=%" PRIu32 "s APP=v%d.%d.%d.%d BOOT=v%d.%d.%d.%d",
uptime,
ver.app_major, ver.app_minor, ver.app_patch, ver.app_build,
ver.boot_major, ver.boot_minor, ver.boot_patch, ver.boot_build);
return true;
}
if (out_uptime) *out_uptime = 0;
DEBUG_WARN("OTA", "GD32 APP 探测失败: %s", esp_err_to_name(err));
return false;
}
/** @brief 协议子步骤:发送 FINISH_OTA 指令并等待 GD32 ACK(10 次重试)。 */
ota_result_t OtaRelay::doSendFinishOta()
{
DEBUG_INFO("OTA", "发送 FINISH_OTA (0x0A 0xAC),等待 GD32 确认即将跳转 APP");
uint8_t finish_payload[2] = {0x0A, 0xAC};
uint8_t resp_type = 0;
uint8_t resp_payload[32] = {0};
size_t resp_len = 0;
for (uint32_t retry = 0; retry < 10; ++retry) {
resp_type = 0;
resp_len = 0;
memset(resp_payload, 0, sizeof(resp_payload));
esp_err_t err = SpiMaster::instance().transact(SPI_OTA_CMD_DATA, finish_payload, sizeof(finish_payload),
&resp_type, resp_payload, sizeof(resp_payload), &resp_len,
CONFIG_DCU_OTA_FINISH_TIMEOUT_MS);
logRespPayload("FINISH_OTA", resp_type, resp_payload, resp_len);
if (err != ESP_OK) {
DEBUG_WARN("OTA", "FINISH_OTA 传输失败, err=%d, retry=%" PRIu32 "/10", err, retry + 1);
vTaskDelay(pdMS_TO_TICKS(10));
continue;
}
err = pollUntilExpectedAckShape("FINISH_OTA", &resp_type, resp_payload,
sizeof(resp_payload), &resp_len,
1000, 10, 8, OtaRelay::isFinishPlainAck);
if (err != ESP_OK) {
DEBUG_WARN("OTA", "FINISH_OTA poll 失败, err=%d, retry=%" PRIu32 "/10", err, retry + 1);
vTaskDelay(pdMS_TO_TICKS(10));
continue;
}
if (resp_type == SPI_OTA_RSP_ACK && isFinishPlainAck(resp_payload, resp_len)) {
break;
}
if (resp_type == SPI_OTA_RSP_WAIT) {
DEBUG_INFO("OTA", "FINISH_OTA 收到 WAIT, GD32 正在排空 Flash 缓冲, retry=%" PRIu32 "/10", retry + 1);
vTaskDelay(pdMS_TO_TICKS(20));
continue;
}
uint32_t err_seq = 0;
uint8_t err_code = 0;
if (parseStructuredError(resp_payload, resp_len, &err_seq, &err_code)) {
DEBUG_ERR("OTA", "FINISH_OTA 收到错误帧 err=0x%02X, retry=%" PRIu32 "/10", err_code, retry + 1);
vTaskDelay(pdMS_TO_TICKS(10));
continue;
}
DEBUG_WARN("OTA", "FINISH_OTA 响应异常, resp_type=0x%02X, resp_len=%zu, retry=%" PRIu32 "/10",
resp_type, resp_len, retry + 1);
vTaskDelay(pdMS_TO_TICKS(10));
}
if (resp_type != SPI_OTA_RSP_ACK || !isFinishPlainAck(resp_payload, resp_len)) {
DEBUG_ERR("OTA", "FINISH_OTA 失败, err=0, resp_type=0x%02X, resp_len=%zu", resp_type, resp_len);
return OTA_RESULT_ERR_GD32;
}
return OTA_RESULT_OK;
}
/** @brief 协议子步骤:轮询等待 GD32 APP 存活(10 次重试)。 */
ota_result_t OtaRelay::doWaitForAppAlive(uint32_t timeout_ms)
{
// ★ APP 存活验证
setGd32AppAlive(false);
// GD32 刚跳转到新 APP,SPI v2 session_id 已重置为 0。
// 必须先 hello() 建立新 session,否则 appPing 的帧被 otaFindFrame
// 以 SESSION mismatch 拒绝(旧 session_id vs 新 APP session_id=0)。
bool session_established = false;
/* APP 完整初始化(含 EthercatSlave::init)需 5-6 秒,偶发 >10 秒。
* 增加重试次数到 20、缩短延迟到 300ms,总窗口 ~26 秒,
* APP 启动后最快 300ms 内检测到(原 500ms)。 */
for (uint32_t attempt = 0; attempt < 20; ++attempt) {
vTaskDelay(pdMS_TO_TICKS(300));
if (!session_established) {
esp_err_t hr = SpiMaster::instance().hello(1500U, V2_ROLE_APP);
if (hr == ESP_OK) {
session_established = true;
} else {
DEBUG_INFO("OTA", "等待 GD32 APP 启动... (%" PRIu32 "/20)", attempt + 1);
continue;
}
}
if (probeAndCacheAppAlive(timeout_ms)) {
break;
}
DEBUG_INFO("OTA", "等待 GD32 APP 启动... (%" PRIu32 "/20)", attempt + 1);
}
if (!getGd32AppAlive()) {
DEBUG_ERR("OTA", "GD32 APP 启动确认超时,OTA 失败");
reset();
return OTA_RESULT_ERR_GD32;
}
// 全流程唯一成功总结(版本来自 probe 写入的快照)
gd32_version_t ver = getSnapshot().version;
DEBUG_INFO("OTA", "GD32 OTA 完成: APP=v%d.%d.%d.%d, BOOT=v%d.%d.%d.%d",
ver.app_major, ver.app_minor, ver.app_patch, ver.app_build,
ver.boot_major, ver.boot_minor, ver.boot_patch, ver.boot_build);
return OTA_RESULT_OK;
}
/** @brief 协议子步骤:发送 FINISH_OTA + 等待 APP 存活(顺序两阶段 + 会话清理)。 */
ota_result_t OtaRelay::doFinishAndVerify()
{
// 阶段1: 发送 FINISH_OTA 并等待 ACK
ota_result_t res = doSendFinishOta();
if (res != OTA_RESULT_OK) {
return res;
}
// 会话密钥/上下文清理
Protocol::sessionKeyClear(&m_sessionCtx);
memset(&m_sessionCtx, 0, sizeof(session_ctx_t));
memset(m_kSession, 0, sizeof(m_kSession));
memset(m_nonceServer, 0, sizeof(m_nonceServer));
memset(m_gd32UidRuntime, 0, sizeof(m_gd32UidRuntime));
// 元数据清理安静进行;等待/成功总结由 doWaitForAppAlive 统一输出
Gd32FlashStore::instance().metaClear();
// 阶段2: APP 存活轮询
return doWaitForAppAlive(1000);
}
// ============================================================
// FreeRTOS 任务入口
// ============================================================
void OtaRelay::taskEntry(void *pvParameters)
{
(void)pvParameters;
taskHandle = xTaskGetCurrentTaskHandle();
DEBUG_INFO("OTA", "OTA 中继任务启动");
initMutex();
dispatchQueue = xQueueCreate(4, sizeof(uint32_t));
resultQueue = xQueueCreate(4, sizeof(uint32_t));
if (!dispatchQueue || !resultQueue) {
DEBUG_ERR("OTA", "OTA 队列创建失败");
vTaskDelete(NULL);
return;
}
// ★ 启动时初始 GD32 探测:读取 GD32 APP 版本号与存活状态
// GD32 APP 启动需要一定时间,给其 3 秒准备窗口后发起探测
{
DEBUG_INFO("OTA", "启动初始 GD32 探测...");
vTaskDelay(pdMS_TO_TICKS(3000)); // 等待 GD32 APP 就绪
probeAndCacheAppAlive(2000);
}
while (1) {
uint32_t msg = 0;
BaseType_t ret = xQueueReceive(dispatchQueue, &msg, portMAX_DELAY);
if (ret != pdTRUE) {
continue;
}
DEBUG_INFO("OTA", "收到 OTA 调度信号: %" PRIu32 ",开始转发...", msg);
// ★ H4: 通过 IRelayListener 接口回调通知协调器(不再直接依赖 OtaCoordinator)
IRelayListener *listener = getRelayListener();
if (listener) listener->onRelayStarted();
ota_result_t result = instance().forwardFirmware();
uint32_t result_msg = (uint32_t)result;
xQueueSend(resultQueue, &result_msg, pdMS_TO_TICKS(100));
if (result == OTA_RESULT_OK) {
// 成功日志已在 doWaitForAppAlive 输出,此处不再重复
vTaskDelay(pdMS_TO_TICKS(3000));
} else if (result == OTA_RESULT_ERR_USER_ABORT) {
DEBUG_ERR("OTA", "OTA 全局超时中止 (OTA_RESULT_ERR_USER_ABORT=%d)", result);
} else {
DEBUG_ERR("OTA", "OTA 转发失败,错误码: %d", result);
}
instance().reset();
// ★ H4: 通过 IRelayListener 接口回调通知协调器中继结束
listener = getRelayListener();
if (listener) listener->onRelayComplete(result == OTA_RESULT_OK);
}
}