diff --git a/components/bt/controller/esp32h2/bt.c b/components/bt/controller/esp32h2/bt.c
index 8830a2018e..180d8d9b59 100644
--- a/components/bt/controller/esp32h2/bt.c
+++ b/components/bt/controller/esp32h2/bt.c
@@ -388,6 +388,17 @@ static DRAM_ATTR esp_pm_lock_handle_t s_pm_lock = NULL;
 #endif // CONFIG_PM_ENABLE
 static DRAM_ATTR modem_clock_lpclk_src_t s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_INVALID;
 
+#define BLE_CONTROLLER_MALLOC_CAPS          (MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT|MALLOC_CAP_DMA)
+void *malloc_ble_controller_mem(size_t size)
+{
+    return heap_caps_malloc(size, BLE_CONTROLLER_MALLOC_CAPS);
+}
+
+uint32_t get_ble_controller_free_heap_size(void)
+{
+    return heap_caps_get_free_size(BLE_CONTROLLER_MALLOC_CAPS);
+}
+
 #define BLE_RTC_DELAY_US_LIGHT_SLEEP                    (5100)
 #define BLE_RTC_DELAY_US_MODEM_SLEEP                    (1500)