diff --git a/components/bt/controller/esp32c6/bt.c b/components/bt/controller/esp32c6/bt.c
index 38deb7faab..ff003bdf9f 100644
--- a/components/bt/controller/esp32c6/bt.c
+++ b/components/bt/controller/esp32c6/bt.c
@@ -393,10 +393,20 @@ static bool s_ble_active = false;
 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_RTC_DELAY_US_LIGHT_SLEEP        (2500)
 #define BLE_RTC_DELAY_US_MODEM_SLEEP        (500)
 
+#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);
+}
+
 static const struct osi_coex_funcs_t s_osi_coex_funcs_ro = {
     ._magic = OSI_COEX_MAGIC_VALUE,
     ._version = OSI_COEX_VERSION,