master/module.c
author Florian Pose <fp@igh-essen.com>
Thu, 09 Aug 2007 14:38:18 +0000
changeset 689 880b556a6efc
parent 653 33aa0e7e5a68
child 700 a6b61f1a062d
permissions -rw-r--r--
Removed checking for NULL slave pointer in EoE handler; added comments.
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/******************************************************************************
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 *
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 *  $Id$
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 *
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 *  Copyright (C) 2006  Florian Pose, Ingenieurgemeinschaft IgH
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 *
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 *  This file is part of the IgH EtherCAT Master.
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 *
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 *  The IgH EtherCAT Master is free software; you can redistribute it
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 *  and/or modify it under the terms of the GNU General Public License
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 *  as published by the Free Software Foundation; either version 2 of the
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 *  License, or (at your option) any later version.
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 *
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 *  The IgH EtherCAT Master is distributed in the hope that it will be
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 *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with the IgH EtherCAT Master; if not, write to the Free Software
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 *
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 *  The right to use EtherCAT Technology is granted and comes free of
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 *  charge under condition of compatibility of product made by
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 *  Licensee. People intending to distribute/sell products based on the
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 *  code, have to sign an agreement to guarantee that products using
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 *  software based on IgH EtherCAT master stay compatible with the actual
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 *  EtherCAT specification (which are released themselves as an open
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 *  standard) as the (only) precondition to have the right to use EtherCAT
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 *  Technology, IP and trade marks.
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 *
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 *****************************************************************************/
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/**
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   \file
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   EtherCAT master driver module.
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*/
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/*****************************************************************************/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include "globals.h"
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#include "master.h"
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#include "device.h"
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#include "xmldev.h"
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/*****************************************************************************/
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#define MAX_MASTERS 5 /**< maximum number of masters */
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/*****************************************************************************/
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int __init ec_init_module(void);
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void __exit ec_cleanup_module(void);
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static int ec_mac_parse(uint8_t *, const char *, int);
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/*****************************************************************************/
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struct kobject kobj; /**< kobject for master module */
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static char *main[MAX_MASTERS]; /**< main devices parameter */
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static char *backup[MAX_MASTERS]; /**< backup devices parameter */
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static ec_master_t *masters; /**< master array */
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static struct semaphore master_sem; /**< master semaphore */
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static unsigned int master_count; /**< number of masters */
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static unsigned int backup_count; /**< number of backup devices */
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static uint8_t macs[MAX_MASTERS][2][ETH_ALEN]; /**< MAC addresses */
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static dev_t device_number; /**< XML character device number */
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ec_xmldev_t xmldev; /**< XML character device */
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char *ec_master_version_str = EC_MASTER_VERSION;
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/*****************************************************************************/
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/** \cond */
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MODULE_AUTHOR("Florian Pose <fp@igh-essen.com>");
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MODULE_DESCRIPTION("EtherCAT master driver module");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(EC_MASTER_VERSION);
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module_param_array(main, charp, &master_count, S_IRUGO);
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MODULE_PARM_DESC(main, "MAC addresses of main devices");
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module_param_array(backup, charp, &backup_count, S_IRUGO);
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MODULE_PARM_DESC(backup, "MAC addresses of backup devices");
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/** \endcond */
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/*****************************************************************************/
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/**
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 * Module initialization.
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 * Initializes \a ec_master_count masters.
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 * \return 0 on success, else < 0
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 */
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int __init ec_init_module(void)
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{
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    int i, ret = 0;
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    EC_INFO("Master driver %s\n", EC_MASTER_VERSION);
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    init_MUTEX(&master_sem);
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    // init kobject and add it to the hierarchy
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    memset(&kobj, 0x00, sizeof(struct kobject));
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    kobject_init(&kobj); // no ktype
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    if (kobject_set_name(&kobj, "ethercat")) {
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        EC_ERR("Failed to set module kobject name.\n");
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        ret = -ENOMEM;
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        goto out_put;
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    }
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    if (kobject_add(&kobj)) {
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        EC_ERR("Failed to add module kobject.\n");
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        ret = -EEXIST;
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        goto out_put;
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    }
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   127
    
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   128
    if (alloc_chrdev_region(&device_number, 0, 1, "EtherCAT")) {
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
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parents: 572
diff changeset
   129
        EC_ERR("Failed to obtain device number!\n");
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   130
        ret = -EBUSY;
576
158c5a3d0a2a New module file /sys/ethercat, masters moved to /sys/ethercat/masterX.
Florian Pose <fp@igh-essen.com>
parents: 575
diff changeset
   131
        goto out_del;
361
29af81543ce1 Introduced per-master character devices for XML descriptions.
Florian Pose <fp@igh-essen.com>
parents: 356
diff changeset
   132
    }
29af81543ce1 Introduced per-master character devices for XML descriptions.
Florian Pose <fp@igh-essen.com>
parents: 356
diff changeset
   133
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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parents: 579
diff changeset
   134
    // zero MAC addresses
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
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diff changeset
   135
    memset(macs, 0x00, sizeof(uint8_t) * MAX_MASTERS * 2 * ETH_ALEN);
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   136
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   137
    // process MAC parameters
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   138
    for (i = 0; i < master_count; i++) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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parents: 579
diff changeset
   139
        if (ec_mac_parse(macs[i][0], main[i], 0)) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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parents: 579
diff changeset
   140
            ret = -EINVAL;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   141
            goto out_cdev;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   142
        }
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   143
        
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   144
        if (i < backup_count && ec_mac_parse(macs[i][1], backup[i], 1)) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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diff changeset
   145
            ret = -EINVAL;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   146
            goto out_cdev;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   147
        }
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   148
    }
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   149
    
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   150
    if (master_count) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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parents: 579
diff changeset
   151
        if (!(masters = kmalloc(sizeof(ec_master_t) * master_count,
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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diff changeset
   152
                        GFP_KERNEL))) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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parents: 579
diff changeset
   153
            EC_ERR("Failed to allocate memory for EtherCAT masters.\n");
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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parents: 579
diff changeset
   154
            ret = -ENOMEM;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   155
            goto out_cdev;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   156
        }
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   157
    }
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   158
    
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   159
    for (i = 0; i < master_count; i++) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   160
        if (ec_master_init(&masters[i], &kobj, i, macs[i][0], macs[i][1])) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   161
            ret = -EIO;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   162
            goto out_free_masters;
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   163
        }
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   164
    }
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   165
    
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   166
    EC_INFO("%u master%s waiting for devices.\n",
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   167
            master_count, (master_count == 1 ? "" : "s"));
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   168
    return ret;
127
e67c80a76de4 Code aufger?umt und kleines Speicherleck entdeckt.
Florian Pose <fp@igh-essen.com>
parents: 111
diff changeset
   169
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   170
out_free_masters:
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   171
    for (i--; i >= 0; i--) ec_master_clear(&masters[i]);
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   172
    kfree(masters);
575
9a2121b500b1 Layed out device ID functionality in own files.
Florian Pose <fp@igh-essen.com>
parents: 573
diff changeset
   173
out_cdev:
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   174
    unregister_chrdev_region(device_number, 1);
576
158c5a3d0a2a New module file /sys/ethercat, masters moved to /sys/ethercat/masterX.
Florian Pose <fp@igh-essen.com>
parents: 575
diff changeset
   175
out_del:
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   176
    kobject_del(&kobj);
576
158c5a3d0a2a New module file /sys/ethercat, masters moved to /sys/ethercat/masterX.
Florian Pose <fp@igh-essen.com>
parents: 575
diff changeset
   177
out_put:
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   178
    kobject_put(&kobj);
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   179
    return ret;
27
d75ef6b46e33 EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   180
}
d75ef6b46e33 EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   181
39
6965c23a6826 likely/unlikely, Fehlermeldungen in zyklischem Code begrenzt und Kommentare ge??ndert.
Florian Pose <fp@igh-essen.com>
parents: 34
diff changeset
   182
/*****************************************************************************/
27
d75ef6b46e33 EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   183
d75ef6b46e33 EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   184
/**
195
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   185
   Module cleanup.
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   186
   Clears all master instances.
27
d75ef6b46e33 EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   187
*/
d75ef6b46e33 EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   188
54
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   189
void __exit ec_cleanup_module(void)
27
d75ef6b46e33 EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   190
{
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   191
    unsigned int i;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   192
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   193
    for (i = 0; i < master_count; i++) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   194
        ec_master_clear(&masters[i]);
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   195
    }
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   196
    if (master_count)
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   197
        kfree(masters);
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   198
    
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   199
    unregister_chrdev_region(device_number, 1);
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   200
    kobject_del(&kobj);
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   201
    kobject_put(&kobj);
361
29af81543ce1 Introduced per-master character devices for XML descriptions.
Florian Pose <fp@igh-essen.com>
parents: 356
diff changeset
   202
575
9a2121b500b1 Layed out device ID functionality in own files.
Florian Pose <fp@igh-essen.com>
parents: 573
diff changeset
   203
    EC_INFO("Master module cleaned up.\n");
27
d75ef6b46e33 EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   204
}
d75ef6b46e33 EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   205
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   206
/*****************************************************************************
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   207
 * MAC address functions
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   208
 ****************************************************************************/
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   209
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   210
int ec_mac_equal(const uint8_t *mac1, const uint8_t *mac2)
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   211
{
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   212
    unsigned int i;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   213
    
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   214
    for (i = 0; i < ETH_ALEN; i++)
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   215
        if (mac1[i] != mac2[i])
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   216
            return 0;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   217
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   218
    return 1;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   219
}
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   220
                
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   221
/*****************************************************************************/
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   222
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   223
ssize_t ec_mac_print(const uint8_t *mac, char *buffer)
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   224
{
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   225
    off_t off = 0;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   226
    unsigned int i;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   227
    
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   228
    for (i = 0; i < ETH_ALEN; i++) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   229
        off += sprintf(buffer + off, "%02X", mac[i]);
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   230
        if (i < ETH_ALEN - 1) off += sprintf(buffer + off, ":");
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   231
    }
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   232
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   233
    return off;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   234
}
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   235
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   236
/*****************************************************************************/
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   237
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   238
int ec_mac_is_zero(const uint8_t *mac)
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   239
{
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   240
    unsigned int i;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   241
    
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   242
    for (i = 0; i < ETH_ALEN; i++)
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   243
        if (mac[i])
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   244
            return 0;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   245
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   246
    return 1;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   247
}
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   248
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   249
/*****************************************************************************/
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   250
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   251
static int ec_mac_parse(uint8_t *mac, const char *src, int allow_empty)
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   252
{
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   253
    unsigned int i, value;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   254
    const char *orig = src;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   255
    char *rem;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   256
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   257
    if (!strlen(src)) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   258
        if (allow_empty){
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   259
            return 0;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   260
        }
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   261
        else {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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diff changeset
   262
            EC_ERR("MAC address may not be empty.\n");
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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diff changeset
   263
            return -EINVAL;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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diff changeset
   264
        }
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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diff changeset
   265
    }
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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parents: 579
diff changeset
   266
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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   267
    for (i = 0; i < ETH_ALEN; i++) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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   268
        value = simple_strtoul(src, &rem, 16);
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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diff changeset
   269
        if (rem != src + 2
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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   270
                || value > 0xFF
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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diff changeset
   271
                || (i < ETH_ALEN - 1 && *rem != ':')) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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   272
            EC_ERR("Invalid MAC address \"%s\".\n", orig);
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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diff changeset
   273
            return -EINVAL;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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diff changeset
   274
        }
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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   275
        mac[i] = value;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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diff changeset
   276
        if (i < ETH_ALEN - 1)
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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   277
            src = rem + 1; // skip colon
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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diff changeset
   278
    }
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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diff changeset
   279
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
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   280
    return 0;
178
b84f69db8566 MERGE branches/sysfs -> trunk (whole SysFS implementation)
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diff changeset
   281
}
b84f69db8566 MERGE branches/sysfs -> trunk (whole SysFS implementation)
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diff changeset
   282
196
f8a1e9f364a3 Introduced version number define.
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diff changeset
   283
/*****************************************************************************/
f8a1e9f364a3 Introduced version number define.
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diff changeset
   284
f8a1e9f364a3 Introduced version number define.
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   285
/**
f8a1e9f364a3 Introduced version number define.
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diff changeset
   286
   Outputs frame contents for debugging purposes.
f8a1e9f364a3 Introduced version number define.
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diff changeset
   287
*/
f8a1e9f364a3 Introduced version number define.
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diff changeset
   288
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   289
void ec_print_data(const uint8_t *data, /**< pointer to data */
f8a1e9f364a3 Introduced version number define.
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diff changeset
   290
                   size_t size /**< number of bytes to output */
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   291
                   )
f8a1e9f364a3 Introduced version number define.
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diff changeset
   292
{
f8a1e9f364a3 Introduced version number define.
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diff changeset
   293
    unsigned int i;
f8a1e9f364a3 Introduced version number define.
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diff changeset
   294
f8a1e9f364a3 Introduced version number define.
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diff changeset
   295
    EC_DBG("");
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   296
    for (i = 0; i < size; i++) {
f8a1e9f364a3 Introduced version number define.
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diff changeset
   297
        printk("%02X ", data[i]);
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   298
        if ((i + 1) % 16 == 0) {
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   299
            printk("\n");
f8a1e9f364a3 Introduced version number define.
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diff changeset
   300
            EC_DBG("");
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   301
        }
f8a1e9f364a3 Introduced version number define.
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diff changeset
   302
    }
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   303
    printk("\n");
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   304
}
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   305
f8a1e9f364a3 Introduced version number define.
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diff changeset
   306
/*****************************************************************************/
f8a1e9f364a3 Introduced version number define.
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diff changeset
   307
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   308
/**
f8a1e9f364a3 Introduced version number define.
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diff changeset
   309
   Outputs frame contents and differences for debugging purposes.
f8a1e9f364a3 Introduced version number define.
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diff changeset
   310
*/
f8a1e9f364a3 Introduced version number define.
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diff changeset
   311
f8a1e9f364a3 Introduced version number define.
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diff changeset
   312
void ec_print_data_diff(const uint8_t *d1, /**< first data */
f8a1e9f364a3 Introduced version number define.
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diff changeset
   313
                        const uint8_t *d2, /**< second data */
f8a1e9f364a3 Introduced version number define.
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diff changeset
   314
                        size_t size /** number of bytes to output */
f8a1e9f364a3 Introduced version number define.
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diff changeset
   315
                        )
f8a1e9f364a3 Introduced version number define.
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diff changeset
   316
{
f8a1e9f364a3 Introduced version number define.
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diff changeset
   317
    unsigned int i;
f8a1e9f364a3 Introduced version number define.
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diff changeset
   318
f8a1e9f364a3 Introduced version number define.
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diff changeset
   319
    EC_DBG("");
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   320
    for (i = 0; i < size; i++) {
f8a1e9f364a3 Introduced version number define.
Florian Pose <fp@igh-essen.com>
parents: 195
diff changeset
   321
        if (d1[i] == d2[i]) printk(".. ");
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   322
        else printk("%02X ", d2[i]);
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   323
        if ((i + 1) % 16 == 0) {
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   324
            printk("\n");
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   325
            EC_DBG("");
f8a1e9f364a3 Introduced version number define.
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diff changeset
   326
        }
f8a1e9f364a3 Introduced version number define.
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diff changeset
   327
    }
f8a1e9f364a3 Introduced version number define.
Florian Pose <fp@igh-essen.com>
parents: 195
diff changeset
   328
    printk("\n");
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   329
}
f8a1e9f364a3 Introduced version number define.
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parents: 195
diff changeset
   330
251
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
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diff changeset
   331
/*****************************************************************************/
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
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diff changeset
   332
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
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diff changeset
   333
/**
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
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diff changeset
   334
   Prints slave states in clear text.
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
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diff changeset
   335
*/
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
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diff changeset
   336
325
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
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diff changeset
   337
size_t ec_state_string(uint8_t states, /**< slave states */
403
7bb931deccd9 Added EC_SLAVE_STATE_ACK_ERR to ec_state_string(); added EC_STATE_STRING_SIZE
Florian Pose <fp@igh-essen.com>
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diff changeset
   338
                       char *buffer /**< target buffer
7bb931deccd9 Added EC_SLAVE_STATE_ACK_ERR to ec_state_string(); added EC_STATE_STRING_SIZE
Florian Pose <fp@igh-essen.com>
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diff changeset
   339
                                       (min. EC_STATE_STRING_SIZE bytes) */
325
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
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diff changeset
   340
                       )
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
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diff changeset
   341
{
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
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diff changeset
   342
    off_t off = 0;
251
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
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diff changeset
   343
    unsigned int first = 1;
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
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diff changeset
   344
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
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diff changeset
   345
    if (!states) {
325
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
parents: 321
diff changeset
   346
        off += sprintf(buffer + off, "(unknown)");
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
parents: 321
diff changeset
   347
        return off;
251
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
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diff changeset
   348
    }
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
parents: 249
diff changeset
   349
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
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diff changeset
   350
    if (states & EC_SLAVE_STATE_INIT) {
325
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
parents: 321
diff changeset
   351
        off += sprintf(buffer + off, "INIT");
251
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
parents: 249
diff changeset
   352
        first = 0;
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
parents: 249
diff changeset
   353
    }
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
parents: 249
diff changeset
   354
    if (states & EC_SLAVE_STATE_PREOP) {
325
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
parents: 321
diff changeset
   355
        if (!first) off += sprintf(buffer + off, ", ");
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
parents: 321
diff changeset
   356
        off += sprintf(buffer + off, "PREOP");
251
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
parents: 249
diff changeset
   357
        first = 0;
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
parents: 249
diff changeset
   358
    }
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
parents: 249
diff changeset
   359
    if (states & EC_SLAVE_STATE_SAVEOP) {
325
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
parents: 321
diff changeset
   360
        if (!first) off += sprintf(buffer + off, ", ");
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
parents: 321
diff changeset
   361
        off += sprintf(buffer + off, "SAVEOP");
251
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
parents: 249
diff changeset
   362
        first = 0;
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
parents: 249
diff changeset
   363
    }
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
parents: 249
diff changeset
   364
    if (states & EC_SLAVE_STATE_OP) {
325
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
parents: 321
diff changeset
   365
        if (!first) off += sprintf(buffer + off, ", ");
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
parents: 321
diff changeset
   366
        off += sprintf(buffer + off, "OP");
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
parents: 321
diff changeset
   367
    }
403
7bb931deccd9 Added EC_SLAVE_STATE_ACK_ERR to ec_state_string(); added EC_STATE_STRING_SIZE
Florian Pose <fp@igh-essen.com>
parents: 383
diff changeset
   368
    if (states & EC_SLAVE_STATE_ACK_ERR) {
453
2ecaa53c6291 Changed output of ec_state_string() for error flag to "+ ERROR".
Florian Pose <fp@igh-essen.com>
parents: 448
diff changeset
   369
        if (!first) off += sprintf(buffer + off, " + ");
2ecaa53c6291 Changed output of ec_state_string() for error flag to "+ ERROR".
Florian Pose <fp@igh-essen.com>
parents: 448
diff changeset
   370
        off += sprintf(buffer + off, "ERROR");
403
7bb931deccd9 Added EC_SLAVE_STATE_ACK_ERR to ec_state_string(); added EC_STATE_STRING_SIZE
Florian Pose <fp@igh-essen.com>
parents: 383
diff changeset
   371
    }
325
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
parents: 321
diff changeset
   372
7833cf70c4f2 VERSION 1.1: New realtime interface, only state machines.
Florian Pose <fp@igh-essen.com>
parents: 321
diff changeset
   373
    return off;
251
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
parents: 249
diff changeset
   374
}
c1d0b63a9302 EoE in Free-Run mode; Finished slave configuration state machine.
Florian Pose <fp@igh-essen.com>
parents: 249
diff changeset
   375
54
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   376
/******************************************************************************
195
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   377
 *  Device interface
54
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   378
 *****************************************************************************/
33
f4171b8aadf8 Master-Reservierung und Use-Count f?r NIC-Treiber.
Florian Pose <fp@igh-essen.com>
parents: 27
diff changeset
   379
f4171b8aadf8 Master-Reservierung und Use-Count f?r NIC-Treiber.
Florian Pose <fp@igh-essen.com>
parents: 27
diff changeset
   380
/**
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   381
   Offers an EtherCAT device to a certain master.
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   382
   The master decides, if it wants to use the device for EtherCAT operation,
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   383
   or not. It is important, that the offered net_device is not used by
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   384
   the kernel IP stack. If the master, accepted the offer, the address of
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   385
   the newly created EtherCAT device is written to the ecdev pointer, else
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   386
   the pointer is written to zero.
195
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   387
   \return 0 on success, else < 0
199
04ecf40fc2e9 Doxygen added interface modules and file documentation.
Florian Pose <fp@igh-essen.com>
parents: 197
diff changeset
   388
   \ingroup DeviceInterface
195
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   389
*/
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   390
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   391
int ecdev_offer(struct net_device *net_dev, /**< net_device to offer */
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   392
        ec_pollfunc_t poll, /**< device poll function */
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   393
        struct module *module, /**< pointer to the module */
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   394
        ec_device_t **ecdev /**< pointer to store a device on success */
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   395
        )
91
0120d6214948 Code-Dokumentation angepasst.
Florian Pose <fp@igh-essen.com>
parents: 88
diff changeset
   396
{
73
9f4ea66d89a3 Dynamische FMMU-Konfiguration, zwei Kopieroperationen eingespart, Einr?ckungen angepasst.
Florian Pose <fp@igh-essen.com>
parents: 64
diff changeset
   397
    ec_master_t *master;
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   398
    char str[20];
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   399
    unsigned int i;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   400
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   401
    for (i = 0; i < master_count; i++) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   402
        master = &masters[i];
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   403
        if (ec_mac_equal(master->main_mac, net_dev->dev_addr)) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   404
            ec_mac_print(master->main_mac, str);
578
f402b4bd2f4d Removed ktype for module kobject; added backup device for master; device
Florian Pose <fp@igh-essen.com>
parents: 576
diff changeset
   405
            EC_INFO("Accepting device %s for master %u.\n",
f402b4bd2f4d Removed ktype for module kobject; added backup device for master; device
Florian Pose <fp@igh-essen.com>
parents: 576
diff changeset
   406
                    str, master->index);
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   407
648
0a6d38ec463f Made waiting for device semaphore uninterruptible.
Florian Pose <fp@igh-essen.com>
parents: 647
diff changeset
   408
            down(&master->device_sem);
579
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   409
            if (master->main_device.dev) {
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   410
                EC_ERR("Master %u already has a device attached.\n",
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   411
                        master->index);
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   412
                up(&master->device_sem);
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   413
                return -1;
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   414
            }
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   415
            
579
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   416
            ec_device_attach(&master->main_device, net_dev, poll, module);
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   417
            up(&master->device_sem);
579
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   418
            
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   419
            sprintf(net_dev->name, "ec%u", master->index);
579
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   420
            *ecdev = &master->main_device; // offer accepted
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   421
            return 0; // no error
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   422
        }
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   423
        else if (master->debug_level) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   424
            ec_mac_print(master->main_mac, str);
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   425
            EC_DBG("Master %u declined device %s.\n", master->index, str);
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   426
        }
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   427
    }
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   428
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   429
    *ecdev = NULL; // offer declined
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   430
    return 0; // no error
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   431
}
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   432
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   433
/*****************************************************************************/
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   434
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   435
/**
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   436
   Withdraws an EtherCAT device from the master.
199
04ecf40fc2e9 Doxygen added interface modules and file documentation.
Florian Pose <fp@igh-essen.com>
parents: 197
diff changeset
   437
   The device is disconnected from the master and all device ressources
04ecf40fc2e9 Doxygen added interface modules and file documentation.
Florian Pose <fp@igh-essen.com>
parents: 197
diff changeset
   438
   are freed.
04ecf40fc2e9 Doxygen added interface modules and file documentation.
Florian Pose <fp@igh-essen.com>
parents: 197
diff changeset
   439
   \attention Before calling this function, the ecdev_stop() function has
04ecf40fc2e9 Doxygen added interface modules and file documentation.
Florian Pose <fp@igh-essen.com>
parents: 197
diff changeset
   440
   to be called, to be sure that the master does not use the device any more.
04ecf40fc2e9 Doxygen added interface modules and file documentation.
Florian Pose <fp@igh-essen.com>
parents: 197
diff changeset
   441
   \ingroup DeviceInterface
195
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   442
*/
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   443
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   444
void ecdev_withdraw(ec_device_t *device /**< EtherCAT device */)
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   445
{
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   446
    ec_master_t *master = device->master;
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   447
    char str[20];
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   448
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   449
    ec_mac_print(master->main_mac, str);
578
f402b4bd2f4d Removed ktype for module kobject; added backup device for master; device
Florian Pose <fp@igh-essen.com>
parents: 576
diff changeset
   450
    
f402b4bd2f4d Removed ktype for module kobject; added backup device for master; device
Florian Pose <fp@igh-essen.com>
parents: 576
diff changeset
   451
    EC_INFO("Master %u releasing main device %s.\n", master->index, str);
f402b4bd2f4d Removed ktype for module kobject; added backup device for master; device
Florian Pose <fp@igh-essen.com>
parents: 576
diff changeset
   452
    
381
006d3653701d Fixed race on duplicate device registering or device unregistering while requesting master.
Florian Pose <fp@igh-essen.com>
parents: 378
diff changeset
   453
    down(&master->device_sem);
579
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   454
    ec_device_detach(device);
381
006d3653701d Fixed race on duplicate device registering or device unregistering while requesting master.
Florian Pose <fp@igh-essen.com>
parents: 378
diff changeset
   455
    up(&master->device_sem);
54
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   456
}
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   457
497
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   458
/*****************************************************************************/
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   459
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   460
/**
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   461
   Opens the network device and makes the master enter IDLE mode.
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   462
   \return 0 on success, else < 0
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   463
   \ingroup DeviceInterface
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   464
*/
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   465
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   466
int ecdev_open(ec_device_t *device /**< EtherCAT device */)
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   467
{
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   468
    if (ec_device_open(device)) {
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   469
        EC_ERR("Failed to open device!\n");
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   470
        return -1;
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   471
    }
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   472
525
8b20781bd1e0 Master workqueue replaced with kernel thread.
Florian Pose <fp@igh-essen.com>
parents: 497
diff changeset
   473
    if (ec_master_enter_idle_mode(device->master)) {
8b20781bd1e0 Master workqueue replaced with kernel thread.
Florian Pose <fp@igh-essen.com>
parents: 497
diff changeset
   474
        EC_ERR("Failed to enter idle mode!\n");
8b20781bd1e0 Master workqueue replaced with kernel thread.
Florian Pose <fp@igh-essen.com>
parents: 497
diff changeset
   475
        return -1;
8b20781bd1e0 Master workqueue replaced with kernel thread.
Florian Pose <fp@igh-essen.com>
parents: 497
diff changeset
   476
    }
8b20781bd1e0 Master workqueue replaced with kernel thread.
Florian Pose <fp@igh-essen.com>
parents: 497
diff changeset
   477
497
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   478
    return 0;
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   479
}
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   480
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   481
/*****************************************************************************/
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   482
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   483
/**
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   484
   Makes the master leave IDLE mode and closes the network device.
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   485
   \return 0 on success, else < 0
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   486
   \ingroup DeviceInterface
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   487
*/
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   488
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   489
void ecdev_close(ec_device_t *device /**< EtherCAT device */)
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   490
{
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   491
    ec_master_leave_idle_mode(device->master);
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   492
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   493
    if (ec_device_close(device))
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   494
        EC_WARN("Failed to close device!\n");
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   495
}
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   496
54
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   497
/******************************************************************************
195
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   498
 *  Realtime interface
54
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   499
 *****************************************************************************/
33
f4171b8aadf8 Master-Reservierung und Use-Count f?r NIC-Treiber.
Florian Pose <fp@igh-essen.com>
parents: 27
diff changeset
   500
f4171b8aadf8 Master-Reservierung und Use-Count f?r NIC-Treiber.
Florian Pose <fp@igh-essen.com>
parents: 27
diff changeset
   501
/**
541
5a2b1658b67f Introduced ECRT version magic.
Florian Pose <fp@igh-essen.com>
parents: 533
diff changeset
   502
 * Returns the version magic of the realtime interface.
5a2b1658b67f Introduced ECRT version magic.
Florian Pose <fp@igh-essen.com>
parents: 533
diff changeset
   503
 * \return ECRT version magic.
5a2b1658b67f Introduced ECRT version magic.
Florian Pose <fp@igh-essen.com>
parents: 533
diff changeset
   504
 * \ingroup RealtimeInterface
5a2b1658b67f Introduced ECRT version magic.
Florian Pose <fp@igh-essen.com>
parents: 533
diff changeset
   505
 */
5a2b1658b67f Introduced ECRT version magic.
Florian Pose <fp@igh-essen.com>
parents: 533
diff changeset
   506
5a2b1658b67f Introduced ECRT version magic.
Florian Pose <fp@igh-essen.com>
parents: 533
diff changeset
   507
unsigned int ecrt_version_magic(void)
5a2b1658b67f Introduced ECRT version magic.
Florian Pose <fp@igh-essen.com>
parents: 533
diff changeset
   508
{
5a2b1658b67f Introduced ECRT version magic.
Florian Pose <fp@igh-essen.com>
parents: 533
diff changeset
   509
    return ECRT_VERSION_MAGIC;
5a2b1658b67f Introduced ECRT version magic.
Florian Pose <fp@igh-essen.com>
parents: 533
diff changeset
   510
}
5a2b1658b67f Introduced ECRT version magic.
Florian Pose <fp@igh-essen.com>
parents: 533
diff changeset
   511
5a2b1658b67f Introduced ECRT version magic.
Florian Pose <fp@igh-essen.com>
parents: 533
diff changeset
   512
/*****************************************************************************/
5a2b1658b67f Introduced ECRT version magic.
Florian Pose <fp@igh-essen.com>
parents: 533
diff changeset
   513
5a2b1658b67f Introduced ECRT version magic.
Florian Pose <fp@igh-essen.com>
parents: 533
diff changeset
   514
/**
195
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   515
   Reserves an EtherCAT master for realtime operation.
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   516
   \return pointer to reserved master, or NULL on error
199
04ecf40fc2e9 Doxygen added interface modules and file documentation.
Florian Pose <fp@igh-essen.com>
parents: 197
diff changeset
   517
   \ingroup RealtimeInterface
91
0120d6214948 Code-Dokumentation angepasst.
Florian Pose <fp@igh-essen.com>
parents: 88
diff changeset
   518
*/
0120d6214948 Code-Dokumentation angepasst.
Florian Pose <fp@igh-essen.com>
parents: 88
diff changeset
   519
178
b84f69db8566 MERGE branches/sysfs -> trunk (whole SysFS implementation)
Florian Pose <fp@igh-essen.com>
parents: 161
diff changeset
   520
ec_master_t *ecrt_request_master(unsigned int master_index
195
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   521
                                 /**< master index */
104
052bc82d5442 MERGE branches/async -> trunk (alle Unterschiede ?bernommen)
Florian Pose <fp@igh-essen.com>
parents: 101
diff changeset
   522
                                 )
54
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   523
{
73
9f4ea66d89a3 Dynamische FMMU-Konfiguration, zwei Kopieroperationen eingespart, Einr?ckungen angepasst.
Florian Pose <fp@igh-essen.com>
parents: 64
diff changeset
   524
    ec_master_t *master;
9f4ea66d89a3 Dynamische FMMU-Konfiguration, zwei Kopieroperationen eingespart, Einr?ckungen angepasst.
Florian Pose <fp@igh-essen.com>
parents: 64
diff changeset
   525
647
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   526
    EC_INFO("Requesting master %u...\n", master_index);
178
b84f69db8566 MERGE branches/sysfs -> trunk (whole SysFS implementation)
Florian Pose <fp@igh-essen.com>
parents: 161
diff changeset
   527
639
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   528
    if (master_index >= master_count) {
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   529
        EC_ERR("Invalid master index %u.\n", master_index);
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   530
        goto out_return;
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   531
    }
aa23c48dca2d Allow only MAC addresses as device identifiers; replaced master list by
Florian Pose <fp@igh-essen.com>
parents: 579
diff changeset
   532
    master = &masters[master_index];
178
b84f69db8566 MERGE branches/sysfs -> trunk (whole SysFS implementation)
Florian Pose <fp@igh-essen.com>
parents: 161
diff changeset
   533
647
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   534
    down(&master_sem);
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   535
    if (master->reserved) {
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   536
        up(&master_sem);
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   537
        EC_ERR("Master %u is already in use!\n", master_index);
191
ca805255a935 Prepared Free-Run mode
Florian Pose <fp@igh-essen.com>
parents: 184
diff changeset
   538
        goto out_return;
73
9f4ea66d89a3 Dynamische FMMU-Konfiguration, zwei Kopieroperationen eingespart, Einr?ckungen angepasst.
Florian Pose <fp@igh-essen.com>
parents: 64
diff changeset
   539
    }
647
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   540
    master->reserved = 1;
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   541
    up(&master_sem);
73
9f4ea66d89a3 Dynamische FMMU-Konfiguration, zwei Kopieroperationen eingespart, Einr?ckungen angepasst.
Florian Pose <fp@igh-essen.com>
parents: 64
diff changeset
   542
648
0a6d38ec463f Made waiting for device semaphore uninterruptible.
Florian Pose <fp@igh-essen.com>
parents: 647
diff changeset
   543
    down(&master->device_sem);
0a6d38ec463f Made waiting for device semaphore uninterruptible.
Florian Pose <fp@igh-essen.com>
parents: 647
diff changeset
   544
    
579
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   545
    if (master->mode != EC_MASTER_MODE_IDLE) {
381
006d3653701d Fixed race on duplicate device registering or device unregistering while requesting master.
Florian Pose <fp@igh-essen.com>
parents: 378
diff changeset
   546
        up(&master->device_sem);
647
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   547
        EC_ERR("Master %u still waiting for devices!\n", master_index);
191
ca805255a935 Prepared Free-Run mode
Florian Pose <fp@igh-essen.com>
parents: 184
diff changeset
   548
        goto out_release;
73
9f4ea66d89a3 Dynamische FMMU-Konfiguration, zwei Kopieroperationen eingespart, Einr?ckungen angepasst.
Florian Pose <fp@igh-essen.com>
parents: 64
diff changeset
   549
    }
9f4ea66d89a3 Dynamische FMMU-Konfiguration, zwei Kopieroperationen eingespart, Einr?ckungen angepasst.
Florian Pose <fp@igh-essen.com>
parents: 64
diff changeset
   550
579
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   551
    if (!try_module_get(master->main_device.module)) {
381
006d3653701d Fixed race on duplicate device registering or device unregistering while requesting master.
Florian Pose <fp@igh-essen.com>
parents: 378
diff changeset
   552
        up(&master->device_sem);
006d3653701d Fixed race on duplicate device registering or device unregistering while requesting master.
Florian Pose <fp@igh-essen.com>
parents: 378
diff changeset
   553
        EC_ERR("Device module is unloading!\n");
191
ca805255a935 Prepared Free-Run mode
Florian Pose <fp@igh-essen.com>
parents: 184
diff changeset
   554
        goto out_release;
ca805255a935 Prepared Free-Run mode
Florian Pose <fp@igh-essen.com>
parents: 184
diff changeset
   555
    }
ca805255a935 Prepared Free-Run mode
Florian Pose <fp@igh-essen.com>
parents: 184
diff changeset
   556
381
006d3653701d Fixed race on duplicate device registering or device unregistering while requesting master.
Florian Pose <fp@igh-essen.com>
parents: 378
diff changeset
   557
    up(&master->device_sem);
006d3653701d Fixed race on duplicate device registering or device unregistering while requesting master.
Florian Pose <fp@igh-essen.com>
parents: 378
diff changeset
   558
579
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   559
    if (!master->main_device.link_state) {
377
ecac8252f114 Changes in ecrt_request_master(); minor output changes.
Florian Pose <fp@igh-essen.com>
parents: 361
diff changeset
   560
        EC_ERR("Link is DOWN.\n");
ecac8252f114 Changes in ecrt_request_master(); minor output changes.
Florian Pose <fp@igh-essen.com>
parents: 361
diff changeset
   561
        goto out_module_put;
ecac8252f114 Changes in ecrt_request_master(); minor output changes.
Florian Pose <fp@igh-essen.com>
parents: 361
diff changeset
   562
    }
ecac8252f114 Changes in ecrt_request_master(); minor output changes.
Florian Pose <fp@igh-essen.com>
parents: 361
diff changeset
   563
446
8fede404c01f Persistent slave lists.
Florian Pose <fp@igh-essen.com>
parents: 444
diff changeset
   564
    if (ec_master_enter_operation_mode(master)) {
8fede404c01f Persistent slave lists.
Florian Pose <fp@igh-essen.com>
parents: 444
diff changeset
   565
        EC_ERR("Failed to enter OPERATION mode!\n");
8fede404c01f Persistent slave lists.
Florian Pose <fp@igh-essen.com>
parents: 444
diff changeset
   566
        goto out_module_put;
377
ecac8252f114 Changes in ecrt_request_master(); minor output changes.
Florian Pose <fp@igh-essen.com>
parents: 361
diff changeset
   567
    }
ecac8252f114 Changes in ecrt_request_master(); minor output changes.
Florian Pose <fp@igh-essen.com>
parents: 361
diff changeset
   568
647
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   569
    EC_INFO("Successfully requested master %u.\n", master_index);
73
9f4ea66d89a3 Dynamische FMMU-Konfiguration, zwei Kopieroperationen eingespart, Einr?ckungen angepasst.
Florian Pose <fp@igh-essen.com>
parents: 64
diff changeset
   570
    return master;
54
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   571
191
ca805255a935 Prepared Free-Run mode
Florian Pose <fp@igh-essen.com>
parents: 184
diff changeset
   572
 out_module_put:
579
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   573
    module_put(master->main_device.module);
191
ca805255a935 Prepared Free-Run mode
Florian Pose <fp@igh-essen.com>
parents: 184
diff changeset
   574
 out_release:
647
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   575
    master->reserved = 0;
191
ca805255a935 Prepared Free-Run mode
Florian Pose <fp@igh-essen.com>
parents: 184
diff changeset
   576
 out_return:
73
9f4ea66d89a3 Dynamische FMMU-Konfiguration, zwei Kopieroperationen eingespart, Einr?ckungen angepasst.
Florian Pose <fp@igh-essen.com>
parents: 64
diff changeset
   577
    return NULL;
27
d75ef6b46e33 EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   578
}
d75ef6b46e33 EtherCAT-Master in eigenes Modul ausgelagert.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   579
39
6965c23a6826 likely/unlikely, Fehlermeldungen in zyklischem Code begrenzt und Kommentare ge??ndert.
Florian Pose <fp@igh-essen.com>
parents: 34
diff changeset
   580
/*****************************************************************************/
33
f4171b8aadf8 Master-Reservierung und Use-Count f?r NIC-Treiber.
Florian Pose <fp@igh-essen.com>
parents: 27
diff changeset
   581
f4171b8aadf8 Master-Reservierung und Use-Count f?r NIC-Treiber.
Florian Pose <fp@igh-essen.com>
parents: 27
diff changeset
   582
/**
195
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   583
   Releases a reserved EtherCAT master.
199
04ecf40fc2e9 Doxygen added interface modules and file documentation.
Florian Pose <fp@igh-essen.com>
parents: 197
diff changeset
   584
   \ingroup RealtimeInterface
195
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   585
*/
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   586
674071846ee3 Translated all comments and documentation to english language.
Florian Pose <fp@igh-essen.com>
parents: 191
diff changeset
   587
void ecrt_release_master(ec_master_t *master /**< EtherCAT master */)
33
f4171b8aadf8 Master-Reservierung und Use-Count f?r NIC-Treiber.
Florian Pose <fp@igh-essen.com>
parents: 27
diff changeset
   588
{
647
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   589
    EC_INFO("Releasing master %u...\n", master->index);
531
8d9339e7453f Warn on duplicate master releasing.
Florian Pose <fp@igh-essen.com>
parents: 525
diff changeset
   590
8d9339e7453f Warn on duplicate master releasing.
Florian Pose <fp@igh-essen.com>
parents: 525
diff changeset
   591
    if (master->mode != EC_MASTER_MODE_OPERATION) {
647
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   592
        EC_WARN("Master %u was was not requested!\n", master->index);
531
8d9339e7453f Warn on duplicate master releasing.
Florian Pose <fp@igh-essen.com>
parents: 525
diff changeset
   593
        return;
8d9339e7453f Warn on duplicate master releasing.
Florian Pose <fp@igh-essen.com>
parents: 525
diff changeset
   594
    }
8d9339e7453f Warn on duplicate master releasing.
Florian Pose <fp@igh-essen.com>
parents: 525
diff changeset
   595
446
8fede404c01f Persistent slave lists.
Florian Pose <fp@igh-essen.com>
parents: 444
diff changeset
   596
    ec_master_leave_operation_mode(master);
151
1961b674466c Plugfest: master_open()/close() ausgelagert.
Florian Pose <fp@igh-essen.com>
parents: 127
diff changeset
   597
579
17c6fd3b076e Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents: 578
diff changeset
   598
    module_put(master->main_device.module);
647
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   599
    master->reserved = 0;
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   600
dc556a8c8fed Replaced master variable 'atomic_t available' by integer and used
Florian Pose <fp@igh-essen.com>
parents: 639
diff changeset
   601
    EC_INFO("Released master %u.\n", master->index);
33
f4171b8aadf8 Master-Reservierung und Use-Count f?r NIC-Treiber.
Florian Pose <fp@igh-essen.com>
parents: 27
diff changeset
   602
}
f4171b8aadf8 Master-Reservierung und Use-Count f?r NIC-Treiber.
Florian Pose <fp@igh-essen.com>
parents: 27
diff changeset
   603
39
6965c23a6826 likely/unlikely, Fehlermeldungen in zyklischem Code begrenzt und Kommentare ge??ndert.
Florian Pose <fp@igh-essen.com>
parents: 34
diff changeset
   604
/*****************************************************************************/
54
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   605
199
04ecf40fc2e9 Doxygen added interface modules and file documentation.
Florian Pose <fp@igh-essen.com>
parents: 197
diff changeset
   606
/** \cond */
04ecf40fc2e9 Doxygen added interface modules and file documentation.
Florian Pose <fp@igh-essen.com>
parents: 197
diff changeset
   607
54
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   608
module_init(ec_init_module);
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   609
module_exit(ec_cleanup_module);
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   610
573
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   611
EXPORT_SYMBOL(ecdev_offer);
cdee4ea90ce9 Introduced device IDs; removed comment lines from 8139too; removed
Florian Pose <fp@igh-essen.com>
parents: 572
diff changeset
   612
EXPORT_SYMBOL(ecdev_withdraw);
497
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   613
EXPORT_SYMBOL(ecdev_open);
04552130dd54 Re-introduced ecdev_open() and ecdev_close(), to avoid a race condition regarding the link state.
Florian Pose <fp@igh-essen.com>
parents: 495
diff changeset
   614
EXPORT_SYMBOL(ecdev_close);
104
052bc82d5442 MERGE branches/async -> trunk (alle Unterschiede ?bernommen)
Florian Pose <fp@igh-essen.com>
parents: 101
diff changeset
   615
EXPORT_SYMBOL(ecrt_request_master);
052bc82d5442 MERGE branches/async -> trunk (alle Unterschiede ?bernommen)
Florian Pose <fp@igh-essen.com>
parents: 101
diff changeset
   616
EXPORT_SYMBOL(ecrt_release_master);
545
6c4322e118d6 Added EXPORT macro for ecrt_version_magic().
Florian Pose <fp@igh-essen.com>
parents: 541
diff changeset
   617
EXPORT_SYMBOL(ecrt_version_magic);
54
7506e67dd122 Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
Florian Pose <fp@igh-essen.com>
parents: 52
diff changeset
   618
199
04ecf40fc2e9 Doxygen added interface modules and file documentation.
Florian Pose <fp@igh-essen.com>
parents: 197
diff changeset
   619
/** \endcond */
04ecf40fc2e9 Doxygen added interface modules and file documentation.
Florian Pose <fp@igh-essen.com>
parents: 197
diff changeset
   620
04ecf40fc2e9 Doxygen added interface modules and file documentation.
Florian Pose <fp@igh-essen.com>
parents: 197
diff changeset
   621
/*****************************************************************************/