diff --git a/components/bt/controller/esp32/bt.c b/components/bt/controller/esp32/bt.c
index c7dd4dbb12..ba6265378a 100644
--- a/components/bt/controller/esp32/bt.c
+++ b/components/bt/controller/esp32/bt.c
@@ -225,7 +225,7 @@ extern int coex_bt_release(uint32_t event);
 extern int coex_register_bt_cb(coex_func_cb_t cb);
 extern uint32_t coex_bb_reset_lock(void);
 extern void coex_bb_reset_unlock(uint32_t restore);
-extern int coex_schm_register_callback(int type, void *callback);
+extern int coex_schm_register_callback(coex_schm_callback_type_t type, void *callback);
 extern void coex_schm_status_bit_clear(uint32_t type, uint32_t status);
 extern void coex_schm_status_bit_set(uint32_t type, uint32_t status);
 extern uint32_t coex_schm_interval_get(void);
@@ -1168,7 +1168,6 @@ static void IRAM_ATTR coex_bb_reset_unlock_wrapper(uint32_t restore)
 static int coex_schm_register_btdm_callback_wrapper(void *callback)
 {
 #if CONFIG_SW_COEXIST_ENABLE
-#define COEX_SCHM_CALLBACK_TYPE_BT 0x1
     return coex_schm_register_callback(COEX_SCHM_CALLBACK_TYPE_BT, callback);
 #else
     return 0;
diff --git a/components/esp_coex/include/esp_coexist_internal.h b/components/esp_coex/include/esp_coexist_internal.h
index fadb38c939..9de4f37a5c 100644
--- a/components/esp_coex/include/esp_coexist_internal.h
+++ b/components/esp_coex/include/esp_coexist_internal.h
@@ -22,6 +22,12 @@ typedef enum {
     COEX_PREFER_NUM,
 } coex_prefer_t;
 
+typedef enum {
+    COEX_SCHM_CALLBACK_TYPE_WIFI = 0,
+    COEX_SCHM_CALLBACK_TYPE_BT,
+    COEX_SCHM_CALLBACK_TYPE_I154,
+} coex_schm_callback_type_t;
+
 typedef void (* coex_func_cb_t)(uint32_t event, int sched_cnt);
 typedef esp_err_t (* coex_set_lpclk_source_callback_t)(void);
 
@@ -230,7 +236,7 @@ int coex_schm_process_restart(void);
  *  @param callback : callback
  *  @return : 0 - success, other - failed
  */
-int coex_schm_register_callback(int type, void *callback);
+int coex_schm_register_callback(coex_schm_callback_type_t type, void *callback);
 
 /**
  * @brief Register coexistence adapter functions.
diff --git a/components/esp_wifi/esp32/esp_adapter.c b/components/esp_wifi/esp32/esp_adapter.c
index b2ab1f0674..2e0cba008a 100644
--- a/components/esp_wifi/esp32/esp_adapter.c
+++ b/components/esp_wifi/esp32/esp_adapter.c
@@ -573,7 +573,7 @@ static int coex_schm_process_restart_wrapper(void)
 #endif
 }
 
-static int coex_schm_register_cb_wrapper(int type, void(*cb)(int))
+static int coex_schm_register_cb_wrapper(int type, int(*cb)(int))
 {
 #if CONFIG_SW_COEXIST_ENABLE
     return coex_schm_register_callback(type, cb);
diff --git a/components/esp_wifi/esp32c2/esp_adapter.c b/components/esp_wifi/esp32c2/esp_adapter.c
index 3906026e56..3bd74dcc57 100644
--- a/components/esp_wifi/esp32c2/esp_adapter.c
+++ b/components/esp_wifi/esp32c2/esp_adapter.c
@@ -556,7 +556,7 @@ static int coex_schm_process_restart_wrapper(void)
 #endif
 }
 
-static int coex_schm_register_cb_wrapper(int type, void(*cb)(int))
+static int coex_schm_register_cb_wrapper(int type, int(*cb)(int))
 {
 #if CONFIG_SW_COEXIST_ENABLE
     return coex_schm_register_callback(type, cb);
diff --git a/components/esp_wifi/esp32c3/esp_adapter.c b/components/esp_wifi/esp32c3/esp_adapter.c
index 04e8b57359..ff94d9c37d 100644
--- a/components/esp_wifi/esp32c3/esp_adapter.c
+++ b/components/esp_wifi/esp32c3/esp_adapter.c
@@ -581,7 +581,7 @@ static int coex_schm_process_restart_wrapper(void)
 #endif
 }
 
-static int coex_schm_register_cb_wrapper(int type, void(*cb)(int))
+static int coex_schm_register_cb_wrapper(int type, int(*cb)(int))
 {
 #if CONFIG_SW_COEXIST_ENABLE
     return coex_schm_register_callback(type, cb);
diff --git a/components/esp_wifi/esp32c6/esp_adapter.c b/components/esp_wifi/esp32c6/esp_adapter.c
index 2b2da560f9..78c1e39574 100644
--- a/components/esp_wifi/esp32c6/esp_adapter.c
+++ b/components/esp_wifi/esp32c6/esp_adapter.c
@@ -554,7 +554,7 @@ static int coex_schm_process_restart_wrapper(void)
 #endif
 }
 
-static int coex_schm_register_cb_wrapper(int type, void(*cb)(int))
+static int coex_schm_register_cb_wrapper(int type, int(*cb)(int))
 {
 #if CONFIG_SW_COEXIST_ENABLE
     return coex_schm_register_callback(type, cb);
diff --git a/components/esp_wifi/esp32s2/esp_adapter.c b/components/esp_wifi/esp32s2/esp_adapter.c
index 71bc971240..698dd144f4 100644
--- a/components/esp_wifi/esp32s2/esp_adapter.c
+++ b/components/esp_wifi/esp32s2/esp_adapter.c
@@ -608,7 +608,7 @@ static int coex_schm_process_restart_wrapper(void)
 #endif
 }
 
-static int coex_schm_register_cb_wrapper(int type, void(*cb)(int))
+static int coex_schm_register_cb_wrapper(int type, int(*cb)(int))
 {
 #if CONFIG_SW_COEXIST_ENABLE
     return coex_schm_register_callback(type, cb);
diff --git a/components/esp_wifi/esp32s3/esp_adapter.c b/components/esp_wifi/esp32s3/esp_adapter.c
index 0c7162a12d..95ab748163 100644
--- a/components/esp_wifi/esp32s3/esp_adapter.c
+++ b/components/esp_wifi/esp32s3/esp_adapter.c
@@ -630,7 +630,7 @@ static int coex_schm_process_restart_wrapper(void)
 #endif
 }
 
-static int coex_schm_register_cb_wrapper(int type, void(*cb)(int))
+static int coex_schm_register_cb_wrapper(int type, int(*cb)(int))
 {
 #if CONFIG_SW_COEXIST_ENABLE
     return coex_schm_register_callback(type, cb);
diff --git a/components/esp_wifi/include/esp_private/wifi_os_adapter.h b/components/esp_wifi/include/esp_private/wifi_os_adapter.h
index da19d48321..d23cbdeacb 100644
--- a/components/esp_wifi/include/esp_private/wifi_os_adapter.h
+++ b/components/esp_wifi/include/esp_private/wifi_os_adapter.h
@@ -150,7 +150,7 @@ typedef struct {
     void (* _sleep_retention_entries_destroy)(int);
 #endif
     int (* _coex_schm_process_restart)(void);
-    int (* _coex_schm_register_cb)(int, void (* cb)(int));
+    int (* _coex_schm_register_cb)(int, int (* cb)(int));
     int32_t _magic;
 } wifi_osi_funcs_t;