diff --git a/fthd_isp.h b/fthd_isp.h
index 5be97bf..22e580a 100644
--- a/fthd_isp.h
+++ b/fthd_isp.h
@@ -447,6 +447,37 @@ enum fthd_isp_cmds {
 	CISP_CMD_APPLE_CH_DPC_STATIC_DEFECTS_TABLE_SET = 0xc50c,
 };
 
+enum isp_debug_cmds {
+	CISP_CMD_DEBUG_BANNER=0,
+	CISP_CMD_DEBUG_NOP1,
+	CISP_CMD_DEBUG_NOP2,
+	CISP_CMD_DEBUG_PS,
+	CISP_CMD_DEBUG_GET_ROOT_HANDLE,
+	CISP_CMD_DEBUG_GET_OBJECT_BY_NAME,
+	CISP_CMD_DEBUG_GET_NUMBER_OF_CHILDREN,
+	CISP_CMD_DEBUG_GET_CHILDREN_BY_INDEX,
+	CISP_CMD_DEBUG_SHOW_OBJECT_GRAPH,
+	CISP_CMD_DEBUG_DUMP_OBJECT,
+	CISP_CMD_DEBUG_DUMP_ALL_OBJECTS,
+	CISP_CMD_DEBUG_GET_DEBUG_LEVEL,
+	CISP_CMD_DEBUG_SET_DEBUG_LEVEL,
+	CISP_CMD_DEBUG_SET_DEBUG_LEVEL_RECURSIVE,
+	CISP_CMD_DEBUG_GET_FSM_COUNT,
+	CISP_CMD_DEBUG_GET_FSM_BY_INDEX,
+	CISP_CMD_DEBUG_GET_FSM_BY_NAME,
+	CISP_CMD_DEBUG_GET_FSM_DEBUG_LEVEL,
+	CISP_CMD_DEBUG_SET_FSM_DEBUG_LEVEL,
+	CISP_CMD_DEBUG_FSM_UNKNOWN, /* XXX: don't know what this cmd is doing yet */
+	CISP_CMD_DEBUG_HEAP_STATISTICS,
+	CISP_CMD_DEBUG_IRQ_STATISTICS,
+	CISP_CMD_DEBUG_SHOW_SEMAPHORE_STATUS,
+	CISP_CMD_DEBUG_START_CPU_PERFORMANCE_COUNTER,
+	CISP_CMD_DEBUG_STOP_CPU_PERFORMANCE_COUNTER,
+	CISP_CMD_DEBUG_SHOW_WIRING_OPERATIONS,
+	CISP_CMD_DEBUG_SHOW_UNIT_TEST_STATUS,
+	CISP_CMD_DEBUG_GET_ENVIRONMENT,
+};
+
 struct isp_mem_obj {
 	struct resource base;
 	unsigned int type;
@@ -675,6 +706,11 @@ struct isp_cmd_channel_buffer_return {
 	u32 channel;
 };
 
+struct fthd_isp_debug_cmd {
+	u32 show_errors;
+	u32 arg[64];
+};
+
 #define to_isp_mem_obj(x) container_of((x), struct isp_mem_obj, base)
 
 extern int isp_init(struct fthd_private *dev_priv);