--- a/master/module.c Mon Apr 24 10:47:03 2006 +0000
+++ b/master/module.c Mon May 29 09:08:56 2006 +0000
@@ -8,7 +8,8 @@
*
* The IgH EtherCAT Master is free software; you can redistribute it
* and/or modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; version 2 of the License.
+ * as published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
*
* The IgH EtherCAT Master is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -19,6 +20,15 @@
* along with the IgH EtherCAT Master; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
+ * The right to use EtherCAT Technology is granted and comes free of
+ * charge under condition of compatibility of product made by
+ * Licensee. People intending to distribute/sell products based on the
+ * code, have to sign an agreement to guarantee that products using
+ * software based on IgH EtherCAT master stay compatible with the actual
+ * EtherCAT specification (which are released themselves as an open
+ * standard) as the (only) precondition to have the right to use EtherCAT
+ * Technology, IP and trade marks.
+ *
*****************************************************************************/
/**
@@ -57,19 +67,22 @@
/*****************************************************************************/
static int ec_master_count = 1;
+static int ec_eoe_devices = 0;
static struct list_head ec_masters;
/*****************************************************************************/
/** \cond */
-MODULE_AUTHOR ("Florian Pose <fp@igh-essen.com>");
-MODULE_DESCRIPTION ("EtherCAT master driver module");
+module_param(ec_master_count, int, S_IRUGO);
+module_param(ec_eoe_devices, int, S_IRUGO);
+
+MODULE_AUTHOR("Florian Pose <fp@igh-essen.com>");
+MODULE_DESCRIPTION("EtherCAT master driver module");
MODULE_LICENSE("GPL");
MODULE_VERSION(COMPILE_INFO);
-
-module_param(ec_master_count, int, 1);
MODULE_PARM_DESC(ec_master_count, "number of EtherCAT masters to initialize");
+MODULE_PARM_DESC(ec_eoe_devices, "number of EoE devices per master");
/** \endcond */
@@ -104,7 +117,7 @@
goto out_free;
}
- if (ec_master_init(master, i)) // kobject_put is done inside...
+ if (ec_master_init(master, i, ec_eoe_devices))
goto out_free;
if (kobject_add(&master->kobj)) {
@@ -218,6 +231,41 @@
printk("\n");
}
+/*****************************************************************************/
+
+/**
+ Prints slave states in clear text.
+*/
+
+void ec_print_states(const uint8_t states /**< slave states */)
+{
+ unsigned int first = 1;
+
+ if (!states) {
+ printk("(unknown)");
+ return;
+ }
+
+ if (states & EC_SLAVE_STATE_INIT) {
+ printk("INIT");
+ first = 0;
+ }
+ if (states & EC_SLAVE_STATE_PREOP) {
+ if (!first) printk(", ");
+ printk("PREOP");
+ first = 0;
+ }
+ if (states & EC_SLAVE_STATE_SAVEOP) {
+ if (!first) printk(", ");
+ printk("SAVEOP");
+ first = 0;
+ }
+ if (states & EC_SLAVE_STATE_OP) {
+ if (!first) printk(", ");
+ printk("OP");
+ }
+}
+
/******************************************************************************
* Device interface
*****************************************************************************/
@@ -240,27 +288,18 @@
{
ec_master_t *master;
- if (!net_dev) {
- EC_WARN("Device is NULL!\n");
- goto out_return;
- }
-
if (!(master = ec_find_master(master_index))) return NULL;
- // critical section start
if (master->device) {
EC_ERR("Master %i already has a device!\n", master_index);
- // critical section leave
goto out_return;
}
if (!(master->device =
(ec_device_t *) kmalloc(sizeof(ec_device_t), GFP_KERNEL))) {
EC_ERR("Failed to allocate device!\n");
- // critical section leave
goto out_return;
}
- // critical section end
if (ec_device_init(master->device, master, net_dev, isr, module)) {
EC_ERR("Failed to init device!\n");
@@ -369,13 +408,11 @@
if (!(master = ec_find_master(master_index))) goto out_return;
- // begin critical section
if (master->reserved) {
EC_ERR("Master %i is already in use!\n", master_index);
goto out_return;
}
master->reserved = 1;
- // end critical section
if (!master->device) {
EC_ERR("Master %i has no assigned device!\n", master_index);
@@ -404,6 +441,7 @@
out_module_put:
module_put(master->device->module);
ec_master_reset(master);
+ ec_master_freerun_start(master);
out_release:
master->reserved = 0;
out_return: