Merge branch 'feature/nimble_port_init_deinit_v4.4' into 'release/v4.4'

NimBLE : Init deinit nimble stack in a loop

See merge request espressif/esp-idf!20689

examples/bluetooth/nimble/blecent/main/Kconfig.projbuild

@@ -6,4 +6,10 @@ menu "Example Configuration"
         help
             Enter the peer address in aa:bb:cc:dd:ee:ff form to connect to a specific peripheral
 
+    config EXAMPLE_INIT_DEINIT_LOOP
+        bool
+        prompt "Perform init deinit of nimble stack in a loop"
+        help
+            Enable this flag, to perform only stack Init and Deinit in a loop.
+
 endmenu

examples/bluetooth/nimble/blecent/main/main.c

@@ -510,8 +510,10 @@ blecent_on_sync(void)
     rc = ble_hs_util_ensure_addr(0);
     assert(rc == 0);
 
+#if !CONFIG_EXAMPLE_INIT_DEINIT_LOOP
     /* Begin scanning for a peripheral to connect to. */
     blecent_scan();
+#endif
 }
 
 void blecent_host_task(void *param)
@@ -523,6 +525,37 @@ void blecent_host_task(void *param)
     nimble_port_freertos_deinit();
 }
 
+#if CONFIG_EXAMPLE_INIT_DEINIT_LOOP
+/* This function showcases stack init and deinit procedure. */
+static void stack_init_deinit(void)
+{
+    int rc;
+    while(1) {
+
+        vTaskDelay(1000);
+
+        ESP_LOGI(tag, "Deinit host");
+
+        rc = nimble_port_stop();
+
+        if (rc == 0) {
+            nimble_port_deinit();
+            ESP_ERROR_CHECK(esp_nimble_hci_and_controller_deinit());
+        }
+
+        vTaskDelay(1000);
+
+        ESP_LOGI(tag, "Init host");
+
+        ESP_ERROR_CHECK(esp_nimble_hci_and_controller_init());
+        nimble_port_init();
+        nimble_port_freertos_init(blecent_host_task);
+
+        ESP_LOGI(tag, "Waiting for 1 second");
+    }
+}
+#endif
+
 void
 app_main(void)
 {
@@ -556,4 +589,8 @@ app_main(void)
 
     nimble_port_freertos_init(blecent_host_task);
 
+#if CONFIG_EXAMPLE_INIT_DEINIT_LOOP
+    stack_init_deinit();
+#endif
+
 }