Update with latest custom meshtastic IDF lib builds per:

meshtastic/esp32-arduino-lib-builder@4898fe4

Author: geeksville

tools/sdk/bin/bootloader_dio_40m.bin

@@ -25,7 +25,7 @@
 extern "C" {
 #endif
 
-#define ESP_BT_CONTROLLER_CONFIG_MAGIC_VAL  0x20190506
+#define ESP_BT_CONTROLLER_CONFIG_MAGIC_VAL  0x20200106
 
 /**
  * @brief Bluetooth mode for controller enable/disable
@@ -96,6 +96,12 @@ the adv packet will be discarded until the memory is restored. */
 #define BTDM_CONTROLLER_MODE_EFF                    ESP_BT_MODE_BTDM
 #endif
 
+#ifdef CONFIG_BTDM_CTRL_AUTO_LATENCY_EFF
+#define BTDM_CTRL_AUTO_LATENCY_EFF CONFIG_BTDM_CTRL_AUTO_LATENCY_EFF
+#else
+#define BTDM_CTRL_AUTO_LATENCY_EFF false
+#endif
+
 #define BTDM_CONTROLLER_BLE_MAX_CONN_LIMIT          9   //Maximum BLE connection limitation
 #define BTDM_CONTROLLER_BR_EDR_MAX_ACL_CONN_LIMIT   7   //Maximum ACL connection limitation
 #define BTDM_CONTROLLER_BR_EDR_MAX_SYNC_CONN_LIMIT  3   //Maximum SCO/eSCO connection limitation
@@ -118,6 +124,7 @@ the adv packet will be discarded until the memory is restored. */
     .ble_max_conn = CONFIG_BTDM_CONTROLLER_BLE_MAX_CONN_EFF,               \
     .bt_max_acl_conn = CONFIG_BTDM_CONTROLLER_BR_EDR_MAX_ACL_CONN_EFF,     \
     .bt_sco_datapath = CONFIG_BTDM_CTRL_BR_EDR_SCO_DATA_PATH_EFF,          \
+    .auto_latency = BTDM_CTRL_AUTO_LATENCY_EFF,                            \
     .bt_max_sync_conn = CONFIG_BTDM_CONTROLLER_BR_EDR_MAX_SYNC_CONN_EFF,   \
     .magic = ESP_BT_CONTROLLER_CONFIG_MAGIC_VAL,                           \
 };
@@ -149,6 +156,7 @@ typedef struct {
     uint8_t ble_max_conn;                   /*!< BLE maximum connection numbers */
     uint8_t bt_max_acl_conn;                /*!< BR/EDR maximum ACL connection numbers */
     uint8_t bt_sco_datapath;                /*!< SCO data path, i.e. HCI or PCM module */
+    bool auto_latency;                      /*!< BLE auto latency, used to enhance classic BT performance */
     /*
      * Following parameters can not be configured runtime when call esp_bt_controller_init()
      * It will be overwrite with a constant value which in menuconfig or from a macro.

tools/sdk/bin/bootloader_dio_80m.bin

@@ -44,6 +44,10 @@ extern "C" {
  */
 extern esp_err_t esp_ble_gatt_set_local_mtu (uint16_t mtu);
 
+#if (BLE_INCLUDED == TRUE)
+extern uint16_t esp_ble_get_sendable_packets_num (void);
+#endif
+
 #ifdef __cplusplus
 }
 #endif