--- a/master/fsm_slave_config.c Thu Nov 20 12:36:19 2008 +0000
+++ b/master/fsm_slave_config.c Tue Nov 25 14:07:19 2008 +0000
@@ -58,6 +58,7 @@
void ec_fsm_slave_config_state_safeop(ec_fsm_slave_config_t *);
void ec_fsm_slave_config_state_op(ec_fsm_slave_config_t *);
+void ec_fsm_slave_config_enter_init(ec_fsm_slave_config_t *);
void ec_fsm_slave_config_enter_mbox_sync(ec_fsm_slave_config_t *);
void ec_fsm_slave_config_enter_preop(ec_fsm_slave_config_t *);
void ec_fsm_slave_config_enter_sdo_conf(ec_fsm_slave_config_t *);
@@ -69,6 +70,8 @@
void ec_fsm_slave_config_state_end(ec_fsm_slave_config_t *);
void ec_fsm_slave_config_state_error(ec_fsm_slave_config_t *);
+void ec_fsm_slave_config_reconfigure(ec_fsm_slave_config_t *);
+
/*****************************************************************************/
/** Constructor.
@@ -81,6 +84,8 @@
ec_fsm_pdo_t *fsm_pdo /**< Pdo configuration state machine to use. */
)
{
+ ec_sdo_request_init(&fsm->request_copy);
+
fsm->datagram = datagram;
fsm->fsm_change = fsm_change;
fsm->fsm_coe = fsm_coe;
@@ -95,6 +100,7 @@
ec_fsm_slave_config_t *fsm /**< slave state machine */
)
{
+ ec_sdo_request_clear(&fsm->request_copy);
}
/*****************************************************************************/
@@ -172,6 +178,17 @@
EC_DBG("Configuring slave %u...\n", fsm->slave->ring_position);
}
+ ec_fsm_slave_config_enter_init(fsm);
+}
+
+/*****************************************************************************/
+
+/** Start state change to INIT.
+ */
+void ec_fsm_slave_config_enter_init(
+ ec_fsm_slave_config_t *fsm /**< slave state machine */
+ )
+{
ec_fsm_change_start(fsm->fsm_change, fsm->slave, EC_SLAVE_STATE_INIT);
ec_fsm_change_exec(fsm->fsm_change);
fsm->state = ec_fsm_slave_config_state_init;
@@ -444,8 +461,9 @@
fsm->state = ec_fsm_slave_config_state_sdo_conf;
fsm->request = list_entry(fsm->slave->config->sdo_configs.next,
ec_sdo_request_t, list);
- ecrt_sdo_request_write(fsm->request);
- ec_fsm_coe_transfer(fsm->fsm_coe, fsm->slave, fsm->request);
+ ec_sdo_request_copy(&fsm->request_copy, fsm->request);
+ ecrt_sdo_request_write(&fsm->request_copy);
+ ec_fsm_coe_transfer(fsm->fsm_coe, fsm->slave, &fsm->request_copy);
ec_fsm_coe_exec(fsm->fsm_coe); // execute immediately
}
@@ -467,12 +485,18 @@
return;
}
+ if (!fsm->slave->config) { // config removed in the meantime
+ ec_fsm_slave_config_reconfigure(fsm);
+ return;
+ }
+
// Another Sdo to configure?
if (fsm->request->list.next != &fsm->slave->config->sdo_configs) {
- fsm->request = list_entry(fsm->request->list.next, ec_sdo_request_t,
- list);
- ecrt_sdo_request_write(fsm->request);
- ec_fsm_coe_transfer(fsm->fsm_coe, fsm->slave, fsm->request);
+ fsm->request = list_entry(fsm->request->list.next,
+ ec_sdo_request_t, list);
+ ec_sdo_request_copy(&fsm->request_copy, fsm->request);
+ ecrt_sdo_request_write(&fsm->request_copy);
+ ec_fsm_coe_transfer(fsm->fsm_coe, fsm->slave, &fsm->request_copy);
ec_fsm_coe_exec(fsm->fsm_coe); // execute immediately
return;
}
@@ -506,6 +530,11 @@
if (ec_fsm_pdo_exec(fsm->fsm_pdo))
return;
+ if (!fsm->slave->config) { // config removed in the meantime
+ ec_fsm_slave_config_reconfigure(fsm);
+ return;
+ }
+
if (!ec_fsm_pdo_success(fsm->fsm_pdo)) {
EC_WARN("Pdo configuration failed on slave %u.\n",
fsm->slave->ring_position);
@@ -594,6 +623,11 @@
return;
}
+ if (!fsm->slave->config) { // config removed in the meantime
+ ec_fsm_slave_config_reconfigure(fsm);
+ return;
+ }
+
ec_fsm_slave_config_enter_fmmu(fsm);
}
@@ -764,6 +798,22 @@
fsm->state = ec_fsm_slave_config_state_end; // successful
}
+/*****************************************************************************/
+
+/** Reconfigure the slave starting at INIT.
+ */
+void ec_fsm_slave_config_reconfigure(
+ ec_fsm_slave_config_t *fsm /**< slave state machine */
+ )
+{
+ if (fsm->slave->master->debug_level) {
+ EC_DBG("Slave configuration for slave %u detached during "
+ "configuration. Reconfiguring.", fsm->slave->ring_position);
+ }
+
+ ec_fsm_slave_config_enter_init(fsm); // reconfigure
+}
+
/******************************************************************************
* Common state functions
*****************************************************************************/