Add esp_timer_is_active function for Nimble stack to use esp_timer instead of FreeRTOS timer

components/bt/host/nimble/Kconfig.in

@@ -493,3 +493,9 @@ config BT_NIMBLE_MAX_PERIODIC_SYNCS
         Set this option to set the upper limit for number of periodic sync
         connections. This should be less than maximum connections allowed by
         controller.
+
+config BT_NIMBLE_USE_ESP_TIMER
+    bool "Enable Esp Timer for Nimble"
+    default y
+    help
+        Set this option to use Esp Timer which has higher priority timer instead of FreeRTOS timer

components/bt/host/nimble/port/include/esp_nimble_cfg.h

@@ -1374,4 +1374,12 @@
 #define MYNEWT_VAL_NEWT_FEATURE_LOGCFG (1)
 #endif
 
+#ifndef MYNEWT_VAL_BLE_USE_ESP_TIMER
+#ifdef CONFIG_BT_NIMBLE_USE_ESP_TIMER
+#define MYNEWT_VAL_BLE_USE_ESP_TIMER (1)
+#else
+#define MYNEWT_VAL_BLE_USE_ESP_TIMER (0)
+#endif
+#endif
+
 #endif

components/esp_timer/include/esp_timer.h

@@ -228,6 +228,18 @@ int64_t esp_timer_get_next_alarm(void);
  */
 esp_err_t esp_timer_dump(FILE* stream);
 
+/**
+ * @brief Returns status of a timer, active or not
+ *
+ * This function is used to identify if the timer is still active or not.
+ *
+ * @param timer timer handle created using esp_timer_create
+ * @return
+ *      - 1 if timer is still active
+ *      - 0 if timer is not active.
+ */
+bool esp_timer_is_active(esp_timer_handle_t timer);
+
 #ifdef __cplusplus
 }
 #endif

components/esp_timer/src/esp_timer.c

@@ -530,3 +530,8 @@ uint32_t IRAM_ATTR esp_system_get_time_resolution(void)
     return 1000;
 }
 #endif
+
+bool esp_timer_is_active(esp_timer_handle_t timer)
+{
+    return timer_armed(timer);
+}