--- a/master/fsm_slave_scan.c Tue Jan 20 08:04:50 2009 +0000
+++ b/master/fsm_slave_scan.c Tue Jan 20 09:55:32 2009 +0000
@@ -48,6 +48,7 @@
void ec_fsm_slave_scan_state_sii_size(ec_fsm_slave_scan_t *);
void ec_fsm_slave_scan_state_sii_data(ec_fsm_slave_scan_t *);
void ec_fsm_slave_scan_state_preop(ec_fsm_slave_scan_t *);
+void ec_fsm_slave_scan_state_sync(ec_fsm_slave_scan_t *);
void ec_fsm_slave_scan_state_pdos(ec_fsm_slave_scan_t *);
void ec_fsm_slave_scan_state_end(ec_fsm_slave_scan_t *);
@@ -586,17 +587,33 @@
)
{
ec_slave_t *slave = fsm->slave;
-
- if ((slave->current_state & EC_SLAVE_STATE_MASK) < EC_SLAVE_STATE_PREOP) {
- if (slave->master->debug_level)
- EC_DBG("Slave %u is not in the state to do mailbox com, setting"
- " to PREOP.\n", slave->ring_position);
+ uint8_t current_state = slave->current_state & EC_SLAVE_STATE_MASK;
+
+ if (current_state != EC_SLAVE_STATE_PREOP
+ && current_state != EC_SLAVE_STATE_SAFEOP
+ && current_state != EC_SLAVE_STATE_OP) {
+ if (slave->master->debug_level) {
+ char str[EC_STATE_STRING_SIZE];
+ ec_state_string(current_state, str, 0);
+ EC_DBG("Slave %u is not in the state to do mailbox com (%s),"
+ " setting to PREOP.\n", slave->ring_position, str);
+ }
+
fsm->state = ec_fsm_slave_scan_state_preop;
ec_slave_request_state(slave, EC_SLAVE_STATE_PREOP);
ec_fsm_slave_config_start(fsm->fsm_slave_config, slave);
ec_fsm_slave_config_exec(fsm->fsm_slave_config);
} else {
- ec_fsm_slave_scan_enter_pdos(fsm);
+ if (slave->master->debug_level)
+ EC_DBG("Reading mailbox syncmanager configuration of slave %u.\n",
+ slave->ring_position);
+
+ /* Scan current sync manager configuration to get configured mailbox
+ * sizes. */
+ ec_datagram_fprd(fsm->datagram, slave->station_address, 0x0800,
+ EC_SYNC_PAGE_SIZE * 2);
+ fsm->retries = EC_FSM_RETRIES;
+ fsm->state = ec_fsm_slave_scan_state_sync;
}
}
@@ -621,6 +638,55 @@
/*****************************************************************************/
+/** Slave scan state: SYNC.
+ */
+void ec_fsm_slave_scan_state_sync(
+ ec_fsm_slave_scan_t *fsm /**< slave state machine */
+ )
+{
+ ec_datagram_t *datagram = fsm->datagram;
+ ec_slave_t *slave = fsm->slave;
+
+ if (datagram->state == EC_DATAGRAM_TIMED_OUT && fsm->retries--)
+ return;
+
+ if (datagram->state != EC_DATAGRAM_RECEIVED) {
+ fsm->state = ec_fsm_slave_scan_state_error;
+ EC_ERR("Failed to receive sync manager configuration datagram"
+ " from slave %u (datagram state %u).\n",
+ slave->ring_position, datagram->state);
+ return;
+ }
+
+ if (datagram->working_counter != 1) {
+ fsm->slave->error_flag = 1;
+ fsm->state = ec_fsm_slave_scan_state_error;
+ EC_ERR("Failed to read DL status from slave %u: ",
+ slave->ring_position);
+ ec_datagram_print_wc_error(datagram);
+ return;
+ }
+
+ slave->configured_rx_mailbox_offset = EC_READ_U16(datagram->data);
+ slave->configured_rx_mailbox_size = EC_READ_U16(datagram->data + 2);
+ slave->configured_tx_mailbox_offset = EC_READ_U16(datagram->data + 8);
+ slave->configured_tx_mailbox_size = EC_READ_U16(datagram->data + 10);
+
+ if (slave->master->debug_level) {
+ EC_DBG("Mailbox configuration of slave %u:\n", slave->ring_position);
+ EC_DBG(" RX offset=0x%04x size=%u\n",
+ slave->configured_rx_mailbox_offset,
+ slave->configured_rx_mailbox_size);
+ EC_DBG(" TX offset=0x%04x size=%u\n",
+ slave->configured_tx_mailbox_offset,
+ slave->configured_tx_mailbox_size);
+ }
+
+ ec_fsm_slave_scan_enter_pdos(fsm);
+}
+
+/*****************************************************************************/
+
/** Enter slave scan state PDOS.
*/
void ec_fsm_slave_scan_enter_pdos(