/** Output master statistics.
*
* This function outputs statistical data on demand, but not more often than
* necessary. The output happens at most once a second.
*/
void ec_master_output_stats(ec_master_t *master /**< EtherCAT master */)
{
if (unlikely(jiffies - master->stats.output_jiffies >= HZ)) {
master->stats.output_jiffies = jiffies;
if (master->stats.timeouts) {
EC_MASTER_WARN(master, "%u datagram%s TIMED OUT!\n",
master->stats.timeouts,
master->stats.timeouts == 1 ? "" : "s");
master->stats.timeouts = 0;
}
if (master->stats.corrupted) {
EC_MASTER_WARN(master, "%u frame%s CORRUPTED!\n",
master->stats.corrupted,
master->stats.corrupted == 1 ? "" : "s");
master->stats.corrupted = 0;
}
if (master->stats.unmatched) {
EC_MASTER_WARN(master, "%u datagram%s UNMATCHED!\n",
master->stats.unmatched,
master->stats.unmatched == 1 ? "" : "s");
master->stats.unmatched = 0;
}
}
}
/** Clear an RTDM device.
*/
void ec_rtdm_dev_clear(
ec_rtdm_dev_t *rtdm_dev /**< EtherCAT RTDM device. */
)
{
int ret;
EC_MASTER_INFO(rtdm_dev->master, "Unregistering RTDM device %s.\n",
rtdm_dev->dev->driver_name);
ret = rtdm_dev_unregister(rtdm_dev->dev, 1000 /* poll delay [ms] */);
if (ret < 0) {
EC_MASTER_WARN(rtdm_dev->master,
"Failed to unregister RTDM device (code %i).\n", ret);
}
kfree(rtdm_dev->dev);
}
/** Register debug interface.
*/
void ec_debug_register(
ec_debug_t *dbg, /**< debug object */
const struct net_device *net_dev /**< 'Real' Ethernet device. */
)
{
int result;
ec_debug_unregister(dbg);
// use the Ethernet address of the physical device for the debug device
memcpy(dbg->dev->dev_addr, net_dev->dev_addr, ETH_ALEN);
// connect the net_device to the kernel
if ((result = register_netdev(dbg->dev))) {
EC_MASTER_WARN(dbg->device->master, "Unable to register net_device:"
" error %i\n", result);
} else {
dbg->registered = 1;
}
}