diff --git a/cpu/esp_common/vendor/xtensa/xtensa_api.h b/cpu/esp_common/vendor/xtensa/xtensa_api.h
index 025b3d1676..b84fefca2c 100644
--- a/cpu/esp_common/vendor/xtensa/xtensa_api.h
+++ b/cpu/esp_common/vendor/xtensa/xtensa_api.h
@@ -28,8 +28,9 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #ifndef XTENSA_API_H
 #define XTENSA_API_H
 
-#include <xtensa/hal.h>
+#include <stdbool.h>
 
+#include <xtensa/hal.h>
 #include "xtensa_context.h"
 
 #ifdef __cplusplus
@@ -120,6 +121,25 @@ static inline void xt_set_intclear(unsigned int arg)
     xthal_set_intclear(arg);
 }
 
+/*
+-------------------------------------------------------------------------------
+  Call this function to get handler's argument for the specified interrupt.
+
+    n        - Interrupt number.
+-------------------------------------------------------------------------------
+*/
+extern void * xt_get_interrupt_handler_arg(int n);
+
+/*
+-------------------------------------------------------------------------------
+  Call this function to check if the specified interrupt is free to use.
+
+    intr       - Interrupt number.
+    cpu        - cpu number.
+-------------------------------------------------------------------------------
+*/
+bool xt_int_has_handler(int intr, int cpu);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/cpu/esp_common/vendor/xtensa/xtensa_intr.c b/cpu/esp_common/vendor/xtensa/xtensa_intr.c
index 38021012f8..f9c964ff84 100644
--- a/cpu/esp_common/vendor/xtensa/xtensa_intr.c
+++ b/cpu/esp_common/vendor/xtensa/xtensa_intr.c
@@ -95,7 +95,6 @@ void xt_unhandled_interrupt(void * arg)
     exit(-1);
 }
 
-
 /*
   This function registers a handler for the specified interrupt. The "arg"
   parameter specifies the argument to be passed to the handler when it is
@@ -127,5 +126,29 @@ xt_handler xt_set_interrupt_handler(int n, xt_handler f, void * arg)
     return ((old == &xt_unhandled_interrupt) ? 0 : old);
 }
 
+bool xt_int_has_handler(int intr, int cpu)
+{
+    /* TODO multiple cores */
+    (void)cpu;
+    return (_xt_interrupt_table[intr].handler != xt_unhandled_interrupt);
+}
+
+#if CONFIG_APPTRACE_SV_ENABLE
+void * xt_get_interrupt_handler_arg(int n)
+{
+    /* TODO multiple cores */
+    xt_handler_table_entry * entry;
+
+    if( n < 0 || n >= XCHAL_NUM_INTERRUPTS )
+        return 0;       /* invalid interrupt number */
+
+    /* Convert exception number to _xt_exception_table name */
+    n = n * portNUM_PROCESSORS + xPortGetCoreID();
+
+    entry = _xt_interrupt_table + n;
+    return entry->arg;
+}
+#endif
+
 
 #endif /* XCHAL_HAVE_INTERRUPTS */