mesh: update libs

1. add APIs to set/get announce interval values.
2. add API to enable/disable the min rate to 6Mbps for data packages.
3. add APIs to set/get RSSI threshold values.
4. fix ap_loss.

components/esp32/include/esp_mesh_internal.h

@@ -43,12 +43,23 @@ typedef struct {
 typedef struct {
     int duration_ms;   /* parent weak RSSI monitor duration, if the RSSI continues to be weak during this duration_ms,
                           will switch to a better parent */
-    int cnx_rssi;      /* RSSI threshold for keeping a good connection with parent */
+    int cnx_rssi;      /* RSSI threshold for keeping a good connection with parent.
+                          if set a value greater than -120 dBm, will arm a timer to monitor current RSSI at a period time of
+                          duration_ms. if keep the default value(-120 dBm), a timer at a random period(<3minutes) will
+                          be armed to switch a better parent if there does have one.
+                          The better parent must have RSSI greater than a high RSSI threshold(-78 dBm by default) and a top layer
+                          than current one. */
     int select_rssi;   /* RSSI threshold for parent selection, should be a value greater than switch_rssi */
-    int switch_rssi;   /* RSSI threshold for action to reselect a better parent */
+    int switch_rssi;   /* Disassociate current parent and switch to a new parent when the RSSI is greater than this set threshold */
     int backoff_rssi;  /* RSSI threshold for connecting to the root */
 } mesh_switch_parent_t;
 
+typedef struct {
+    int high;
+    int medium;
+    int low;
+} mesh_rssi_threshold_t;
+
 /**
  * @brief mesh networking IE
  */
@@ -74,13 +85,13 @@ typedef struct {
     uint16_t self_cap;       /**< self capacity */
     uint16_t layer2_cap;     /**< layer2 capacity */
     uint16_t scan_ap_num;    /**< the number of scanned APs */
-    int8_t rssi;             /**< rssi of the parent */
-    int8_t router_rssi;      /**< rssi of the router */
+    int8_t rssi;             /**< RSSI of the parent */
+    int8_t router_rssi;      /**< RSSI of the router */
     uint8_t flag;            /**< flag of networking */
     uint8_t rc_addr[6];      /**< root address */
-    int8_t rc_rssi;          /**< root rssi */
+    int8_t rc_rssi;          /**< root RSSI */
     uint8_t vote_addr[6];    /**< voter address */
-    int8_t vote_rssi;        /**< vote rssi of the router */
+    int8_t vote_rssi;        /**< vote RSSI of the router */
     uint8_t vote_ttl;        /**< vote ttl */
     uint16_t votes;          /**< votes */
     uint16_t my_votes;       /**< my votes */
@@ -132,7 +143,7 @@ esp_err_t esp_mesh_set_attempts(mesh_attempts_t *attempts);
  *
  * @return
  *    - ESP_OK
- *    - ESP_FAIL
+ *    - ESP_ERR_MESH_ARGUMENT
  */
 esp_err_t esp_mesh_get_attempts(mesh_attempts_t *attempts);
 
@@ -143,7 +154,7 @@ esp_err_t esp_mesh_get_attempts(mesh_attempts_t *attempts);
  *
  * @return
  *    - ESP_OK
- *    - ESP_FAIL
+ *    - ESP_ERR_MESH_ARGUMENT
  */
 esp_err_t esp_mesh_set_switch_parent_paras(mesh_switch_parent_t *paras);
 
@@ -154,10 +165,46 @@ esp_err_t esp_mesh_set_switch_parent_paras(mesh_switch_parent_t *paras);
  *
  * @return
  *    - ESP_OK
- *    - ESP_FAIL
+ *    - ESP_ERR_MESH_ARGUMENT
  */
 esp_err_t esp_mesh_get_switch_parent_paras(mesh_switch_parent_t *paras);
 
+/**
+ * @brief     set RSSI threshold
+ *            The default high RSSI threshold value is -78 dBm.
+ *            The default medium RSSI threshold value is -82 dBm.
+ *            The default low RSSI threshold value is -85 dBm.
+ *
+ * @param     threshold  RSSI threshold
+ *
+ * @return
+ *    - ESP_OK
+ *    - ESP_ERR_MESH_ARGUMENT
+ */
+esp_err_t esp_mesh_set_rssi_threshold(const mesh_rssi_threshold_t *threshold);
+
+/**
+ * @brief     get RSSI threshold
+ * @param     threshold  RSSI threshold
+ *
+ * @return
+ *    - ESP_OK
+ *    - ESP_ERR_MESH_ARGUMENT
+ */
+esp_err_t esp_mesh_get_rssi_threshold(mesh_rssi_threshold_t *threshold);
+
+/**
+ * @brief     enable the minimum rate to 6Mbps
+ *
+ * @attention This API shall be called before WiFi start.
+ *
+ * @param     is_6m  enable or not
+ *
+ * @return
+ *    - ESP_OK
+ */
+esp_err_t esp_mesh_set_6m_rate(bool is_6m);
+
 /**
  * @brief     print the number of txQ waiting
  *
@@ -195,6 +242,29 @@ esp_err_t esp_mesh_set_passive_scan_time(int time_ms);
  */
 int esp_mesh_get_passive_scan_time(void);
 
+/**
+ * @brief     set announce interval
+ *            The default short interval is 500 milliseconds.
+ *            The default long interval is 3000 milliseconds.
+ *
+ * @param     short_ms  shall be greater than the default value
+ * @param     long_ms  shall be greater than the default value
+ *
+ * @return
+ *    - ESP_OK
+ */
+esp_err_t esp_mesh_set_announce_interval(int short_ms, int long_ms);
+
+/**
+ * @brief     get announce interval
+ *
+ * @param     short_ms  short interval
+ * @param     long_ms  long interval
+ *
+ * @return
+ *    - ESP_OK
+ */
+esp_err_t esp_mesh_get_announce_interval(int *short_ms, int *long_ms);
 
 #ifdef __cplusplus
 }

components/esp32/lib

@@ -1 +1 @@
-Subproject commit 67fe3bdfb2f82b1befed076c659951bc03a54eed
+Subproject commit 1f2b30fc41b17d1fe8cca26e90d5665f212bfaa9

examples/mesh/internal_communication/main/mesh_main.c

@@ -372,14 +372,6 @@ void app_main(void)
     memcpy((uint8_t *) &cfg.mesh_ap.password, CONFIG_MESH_AP_PASSWD,
            strlen(CONFIG_MESH_AP_PASSWD));
     ESP_ERROR_CHECK(esp_mesh_set_config(&cfg));
-    /* set RSSI threshold for connecting to the root */
-    mesh_switch_parent_t switch_paras ;
-    ESP_ERROR_CHECK(esp_mesh_get_switch_parent_paras(&switch_paras));
-    switch_paras.select_rssi = -55;
-    switch_paras.cnx_rssi = -65;
-    switch_paras.duration_ms = 120 * 1000;
-    switch_paras.switch_rssi = -65;
-    ESP_ERROR_CHECK(esp_mesh_set_switch_parent_paras(&switch_paras));
     /* mesh start */
     ESP_ERROR_CHECK(esp_mesh_start());
     ESP_LOGI(MESH_TAG, "mesh starts successfully, heap:%d, %s\n",  esp_get_free_heap_size(),

examples/mesh/manual_networking/README.md

@@ -0,0 +1,14 @@
+# Mesh Manual Networking Example
+
+ESP-MESH provides the function of self-organized networking, but if users disable this function on one node, users must designate a parent for this node.
+
+
+This example demonstrates how to scan a list of parent candidates, choose an appropriate parent and set as the parent of this node.
+
+If no parent is found through this scan, enable the self-organized function to let the ESP-MESH handle it by itself.
+
+Run `make menuconfig` to configure the mesh network channel, router SSID, router password and mesh softAP settings.
+
+When the mesh network is established and if you happen to run this example on ESP-WROVER-KIT boards, the RGB light indicator will show you on which layer devices are. The pink reprents root; the yellow reprents layer 2; the red reprents layer 3; the blue reprents layer 4; the green reprents layer 5; the white reprents layer greater than 5.
+
+