- add support for cortex_m3 target_request debugmsgs

- target request handler disabled by default until a target has been registered

git-svn-id: svn://svn.berlios.de/openocd/trunk@259 b42882b7-edfa-0310-969c-e2dbd0fdcd60

src/target/arm7_9_common.c

@@ -638,6 +638,9 @@ int arm7_9_handle_target_request(void *priv)
 	arm_jtag_t *jtag_info = &arm7_9->jtag_info; 
 	reg_t *dcc_control = &arm7_9->eice_cache->reg_list[EICE_COMMS_CTRL];
 	
+	if (!target->dbg_msg_enabled)
+		return ERROR_OK;
+		
 	if (target->state == TARGET_RUNNING)
 	{
 		/* read DCC control register */