Fixed link detection in older e1000e drivers.
/******************************************************************************
*
* $Id$
*
* Copyright (C) 2011 IgH Andreas Stewering-Bone
* 2012 Florian Pose <fp@igh-essen.com>
*
* This file is part of the IgH EtherCAT master
*
* The IgH EtherCAT Master is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2, as
* published by the Free Software Foundation.
*
* The IgH EtherCAT master is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with the IgH EtherCAT master. If not, see <http://www.gnu.org/licenses/>.
*
* ---
*
* The license mentioned above concerns the source code only. Using the
* EtherCAT technology and brand is only permitted in compliance with the
* industrial property and similar rights of Beckhoff Automation GmbH.
*
*****************************************************************************/
#include <sched.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <signal.h>
#include <rtai_lxrt.h>
#include <rtdm/rtdm.h>
#include "ecrt.h"
#define rt_printf(X, Y)
#define NSEC_PER_SEC 1000000000
RT_TASK *task;
const static unsigned int cycle_us = 1000; /* 1 ms */
static int run = 1;
/****************************************************************************/
// EtherCAT
static ec_master_t *master = NULL;
static ec_master_state_t master_state = {};
static ec_domain_t *domain1 = NULL;
static ec_domain_state_t domain1_state = {};
static uint8_t *domain1_pd = NULL;
static ec_slave_config_t *sc_dig_out_01 = NULL;
/****************************************************************************/
// process data
#define BusCoupler01_Pos 0, 0
#define DigOutSlave01_Pos 0, 1
#define Beckhoff_EK1100 0x00000002, 0x044c2c52
#define Beckhoff_EL2004 0x00000002, 0x07d43052
// offsets for PDO entries
static unsigned int off_dig_out0 = 0;
// process data
const static ec_pdo_entry_reg_t domain1_regs[] = {
{DigOutSlave01_Pos, Beckhoff_EL2004, 0x7000, 0x01, &off_dig_out0, NULL},
{}
};
/****************************************************************************/
/* Slave 1, "EL2004"
* Vendor ID: 0x00000002
* Product code: 0x07d43052
* Revision number: 0x00100000
*/
ec_pdo_entry_info_t slave_1_pdo_entries[] = {
{0x7000, 0x01, 1}, /* Output */
{0x7010, 0x01, 1}, /* Output */
{0x7020, 0x01, 1}, /* Output */
{0x7030, 0x01, 1}, /* Output */
};
ec_pdo_info_t slave_1_pdos[] = {
{0x1600, 1, slave_1_pdo_entries + 0}, /* Channel 1 */
{0x1601, 1, slave_1_pdo_entries + 1}, /* Channel 2 */
{0x1602, 1, slave_1_pdo_entries + 2}, /* Channel 3 */
{0x1603, 1, slave_1_pdo_entries + 3}, /* Channel 4 */
};
ec_sync_info_t slave_1_syncs[] = {
{0, EC_DIR_OUTPUT, 4, slave_1_pdos + 0, EC_WD_ENABLE},
{0xff}
};
/*****************************************************************************
* Realtime task
****************************************************************************/
void rt_check_domain_state(void)
{
ec_domain_state_t ds = {};
ecrt_domain_state(domain1, &ds);
if (ds.working_counter != domain1_state.working_counter) {
rt_printf("Domain1: WC %u.\n", ds.working_counter);
}
if (ds.wc_state != domain1_state.wc_state) {
rt_printf("Domain1: State %u.\n", ds.wc_state);
}
domain1_state = ds;
}
/****************************************************************************/
void rt_check_master_state(void)
{
ec_master_state_t ms;
ecrt_master_state(master, &ms);
if (ms.slaves_responding != master_state.slaves_responding) {
rt_printf("%u slave(s).\n", ms.slaves_responding);
}
if (ms.al_states != master_state.al_states) {
rt_printf("AL states: 0x%02X.\n", ms.al_states);
}
if (ms.link_up != master_state.link_up) {
rt_printf("Link is %s.\n", ms.link_up ? "up" : "down");
}
master_state = ms;
}
/****************************************************************************/
void my_cyclic(void)
{
int cycle_counter = 0;
int period;
unsigned int blink = 0;
rt_set_periodic_mode();
period = (int) nano2count((RTIME) cycle_us * 1000);
start_rt_timer(period);
rt_make_hard_real_time();
rt_task_make_periodic(task, rt_get_time() + 10 * period, period);
while (run) {
rt_task_wait_period();
cycle_counter++;
// receive EtherCAT
ecrt_master_receive(master);
ecrt_domain_process(domain1);
rt_check_domain_state();
if (!(cycle_counter % 1000)) {
rt_check_master_state();
}
if (!(cycle_counter % 200)) {
blink = !blink;
}
EC_WRITE_U8(domain1_pd + off_dig_out0, blink ? 0x00 : 0x0F);
// send process data
ecrt_domain_queue(domain1);
ecrt_master_send(master);
}
rt_make_soft_real_time();
stop_rt_timer();
}
/****************************************************************************
* Signal handler
***************************************************************************/
void signal_handler(int sig)
{
run = 0;
}
/****************************************************************************
* Main function
***************************************************************************/
int main(int argc, char *argv[])
{
ec_slave_config_t *sc;
signal(SIGTERM, signal_handler);
signal(SIGINT, signal_handler);
mlockall(MCL_CURRENT | MCL_FUTURE);
printf("Requesting master...\n");
master = ecrt_request_master(0);
if (!master) {
return -1;
}
domain1 = ecrt_master_create_domain(master);
if (!domain1) {
return -1;
}
printf("Creating slave configurations...\n");
// Create configuration for bus coupler
sc = ecrt_master_slave_config(master, BusCoupler01_Pos, Beckhoff_EK1100);
if (!sc) {
return -1;
}
sc_dig_out_01 =
ecrt_master_slave_config(master, DigOutSlave01_Pos, Beckhoff_EL2004);
if (!sc_dig_out_01) {
fprintf(stderr, "Failed to get slave configuration.\n");
return -1;
}
if (ecrt_slave_config_pdos(sc_dig_out_01, EC_END, slave_1_syncs)) {
fprintf(stderr, "Failed to configure PDOs.\n");
return -1;
}
if (ecrt_domain_reg_pdo_entry_list(domain1, domain1_regs)) {
fprintf(stderr, "PDO entry registration failed!\n");
return -1;
}
printf("Activating master...\n");
if (ecrt_master_activate(master)) {
return -1;
}
if (!(domain1_pd = ecrt_domain_data(domain1))) {
fprintf(stderr, "Failed to get domain data pointer.\n");
return -1;
}
/* Create cyclic RT-thread */
struct sched_param param;
param.sched_priority = sched_get_priority_max(SCHED_FIFO) - 1;
if (sched_setscheduler(0, SCHED_FIFO, ¶m) == -1) {
puts("ERROR IN SETTING THE SCHEDULER");
perror("errno");
return -1;
}
task = rt_task_init(nam2num("ec_rtai_rtdm_example"),
0 /* priority */, 0 /* stack size */, 0 /* msg size */);
my_cyclic();
rt_task_delete(task);
printf("End of Program\n");
ecrt_release_master(master);
return 0;
}
/****************************************************************************/