fix: ensure OTA prompt plays before upgrade

ql-application/threadx/interface/custom_app/mqtt.c

@@ -43,7 +43,8 @@
 #define OTA_STATE_TMP_FILE "U:/ota_state.tmp"
 #define OTA_STATE_MAGIC 0x4F544131U
 #define OTA_STATE_FORMAT_VERSION 1U
-#define OTA_PROMPT_WAIT_MS 5000
+#define OTA_PROMPT_PLAY_TIMEOUT_MS 10000
+#define OTA_PROMPT_POLL_MS            50
 #define OTA_ALLOWED_URL_PREFIX "http://101.35.224.118:8080/assets/firmware/"
 
 static ql_timer_t mqtt_event_task_timer = NULL;
@@ -101,7 +102,9 @@ int app_mqtt_connect_sem(char flag);
 #define MQTT_PAYLOAD_SIZE 2048
 static char payload[MQTT_PAYLOAD_SIZE] = {0};
 
-extern int fota_start;
+extern int fota_start;
+int app_play_ota_tips_file(void);
+int xiaoice_get_play_counter(void);
 
 typedef struct {
     uint32_t magic;
@@ -1294,6 +1297,7 @@ static void handle_ota_upgrade(command_t *cmd)
     char *resp;
     int compare_result;
     int ret;
+    uint32_t prompt_start_time;
 
     if (cmd == NULL || fota_start == 1) {
         RLOGE("OTA request ignored: invalid command or OTA already running");
@@ -1347,8 +1351,23 @@ static void handle_ota_upgrade(command_t *cmd)
     }
 
     fota_start = 1;
-    app_play_tips_file(3);
-    ql_rtos_task_sleep_ms(OTA_PROMPT_WAIT_MS);
+    ret = app_play_ota_tips_file();
+    if (ret != 0) {
+        RLOGE("OTA prompt could not start: %d", ret);
+    } else {
+        prompt_start_time = hal_os_up_time_ms();
+        while (xiaoice_get_play_counter() > 0) {
+            ql_rtos_task_sleep_ms(OTA_PROMPT_POLL_MS);
+            if (hal_os_up_time_ms() - prompt_start_time > OTA_PROMPT_PLAY_TIMEOUT_MS) {
+                RLOGE("OTA prompt playback timeout, counter=%d",
+                      xiaoice_get_play_counter());
+                break;
+            }
+        }
+        if (xiaoice_get_play_counter() == 0) {
+            printf("OTA prompt playback completed\r\n");
+        }
+    }
 
     /* Product requirement: keep deleting the configured audio files before OTA. */
     app_file_check_del();