--- a/master/fsm_slave.c Tue Dec 01 14:24:57 2009 +0100
+++ b/master/fsm_slave.c Tue Dec 01 16:00:22 2009 +0100
@@ -42,7 +42,10 @@
/*****************************************************************************/
void ec_fsm_slave_state_idle(ec_fsm_slave_t *);
+int ec_fsm_slave_action_process_sdo(ec_fsm_slave_t *);
+int ec_fsm_slave_action_process_foe(ec_fsm_slave_t *);
void ec_fsm_slave_state_sdo_request(ec_fsm_slave_t *);
+void ec_fsm_slave_state_foe_request(ec_fsm_slave_t *);
/*****************************************************************************/
@@ -62,6 +65,7 @@
// init sub-state-machines
ec_fsm_coe_init(&fsm->fsm_coe, fsm->datagram);
+ ec_fsm_foe_init(&fsm->fsm_foe, fsm->datagram);
}
/*****************************************************************************/
@@ -74,6 +78,7 @@
{
// clear sub-state machines
ec_fsm_coe_clear(&fsm->fsm_coe);
+ ec_fsm_foe_clear(&fsm->fsm_foe);
}
/*****************************************************************************/
@@ -101,20 +106,41 @@
* Slave state machine
*****************************************************************************/
+/*****************************************************************************/
+
/** Slave state: IDLE.
*
- * Check for pending SDO requests and process one.
*
*/
void ec_fsm_slave_state_idle(
ec_fsm_slave_t *fsm /**< Slave state machine. */
)
{
+ // Check for pending external SDO requests
+ if (ec_fsm_slave_action_process_sdo(fsm))
+ return;
+ // Check for pending FOE requests
+ if (ec_fsm_slave_action_process_foe(fsm))
+ return;
+
+}
+
+
+/*****************************************************************************/
+
+/** Check for pending SDO requests and process one.
+ *
+ * \return non-zero, if an SDO request is processed.
+ */
+int ec_fsm_slave_action_process_sdo(
+ ec_fsm_slave_t *fsm /**< Slave state machine. */
+ )
+{
ec_slave_t *slave = fsm->slave;
ec_master_t *master = slave->master;
ec_master_sdo_request_t *request, *next;
- // search the first matching external request to be processed
+ // search the first external request to be processed
list_for_each_entry_safe(request, next, &slave->slave_sdo_requests, list) {
list_del_init(&request->list); // dequeue
request->req.state = EC_INT_REQUEST_BUSY;
@@ -137,10 +163,47 @@
fsm->state = ec_fsm_slave_state_sdo_request;
ec_fsm_coe_transfer(&fsm->fsm_coe, slave, &request->req);
ec_fsm_coe_exec(&fsm->fsm_coe); // execute immediately
- ec_master_queue_sdo_datagram(fsm->slave->master,fsm->datagram);
- return;
- }
-}
+ ec_master_queue_external_datagram(fsm->slave->master,fsm->datagram);
+ return 1;
+ }
+ return 0;
+}
+
+
+/*****************************************************************************/
+
+/** Check for pending FOE requests and process one.
+ *
+ * \return non-zero, if an FOE request is processed.
+ */
+int ec_fsm_slave_action_process_foe(
+ ec_fsm_slave_t *fsm /**< Slave state machine. */
+ )
+{
+ ec_slave_t *slave = fsm->slave;
+ ec_master_t *master = slave->master;
+ ec_master_foe_request_t *request, *next;
+
+ // search the first request to be processed
+ list_for_each_entry_safe(request, next, &slave->foe_requests, list) {
+ list_del_init(&request->list); // dequeue
+ request->req.state = EC_INT_REQUEST_BUSY;
+
+ if (master->debug_level)
+ EC_DBG("Processing FoE request for slave %u.\n",
+ slave->ring_position);
+
+ fsm->foe_request = &request->req;
+ fsm->state = ec_fsm_slave_state_foe_request;
+ ec_fsm_foe_transfer(&fsm->fsm_foe, slave, &request->req);
+ ec_fsm_foe_exec(&fsm->fsm_foe);
+ ec_master_queue_external_datagram(fsm->slave->master,fsm->datagram);
+ return 1;
+ }
+ return 0;
+}
+
+
/*****************************************************************************/
@@ -156,7 +219,7 @@
if (ec_fsm_coe_exec(&fsm->fsm_coe))
{
- ec_master_queue_sdo_datagram(fsm->slave->master,fsm->datagram);
+ ec_master_queue_external_datagram(fsm->slave->master,fsm->datagram);
return;
}
if (!ec_fsm_coe_success(&fsm->fsm_coe)) {
@@ -169,15 +232,56 @@
return;
}
+ if (master->debug_level)
+ EC_DBG("Finished SDO request for slave %u.\n",
+ fsm->slave->ring_position);
+
// SDO request finished
request->state = EC_INT_REQUEST_SUCCESS;
wake_up(&slave->sdo_queue);
+ fsm->sdo_request = NULL;
+ fsm->state = ec_fsm_slave_state_idle;
+}
+
+
+/*****************************************************************************/
+
+/** Slave state: FOE REQUEST.
+ */
+void ec_fsm_slave_state_foe_request(
+ ec_fsm_slave_t *fsm /**< Slave state machine. */
+ )
+{
+ ec_slave_t *slave = fsm->slave;
+ ec_master_t *master = slave->master;
+ ec_foe_request_t *request = fsm->foe_request;
+
+ if (ec_fsm_foe_exec(&fsm->fsm_foe))
+ {
+ ec_master_queue_external_datagram(fsm->slave->master,fsm->datagram);
+ return;
+ }
+
+ if (!ec_fsm_foe_success(&fsm->fsm_foe)) {
+ EC_ERR("Failed to handle FoE request to slave %u.\n",
+ slave->ring_position);
+ request->state = EC_INT_REQUEST_FAILURE;
+ wake_up(&slave->foe_queue);
+ fsm->foe_request = NULL;
+ fsm->state = ec_fsm_slave_state_idle;
+ return;
+ }
+
+ // finished transferring FoE
if (master->debug_level)
- EC_DBG("Finished SDO request for slave %u.\n",
- fsm->slave->ring_position);
-
- fsm->sdo_request = NULL;
- fsm->datagram->data_size = 0;
+ EC_DBG("Successfully transferred %u bytes of FoE data from/to"
+ " slave %u.\n", request->data_size, slave->ring_position);
+
+ request->state = EC_INT_REQUEST_SUCCESS;
+ wake_up(&slave->foe_queue);
+
+ fsm->foe_request = NULL;
fsm->state = ec_fsm_slave_state_idle;
}
+