etherlabmaster: master/ethernet.c@1cc6bcb1e6ae (annotated)

145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	1	/******************************************************************************
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	2	*
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	3	* $Id$
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	4	*
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	5	* Copyright (C) 2006 Florian Pose, Ingenieurgemeinschaft IgH
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	6	*
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	7	* This file is part of the IgH EtherCAT Master.
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	8	*
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	9	* The IgH EtherCAT Master is free software; you can redistribute it
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	10	* and/or modify it under the terms of the GNU General Public License
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	11	* as published by the Free Software Foundation; version 2 of the License.
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	12	*
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	13	* The IgH EtherCAT Master is distributed in the hope that it will be
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	14	* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	16	* GNU General Public License for more details.
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	17	*
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	18	* You should have received a copy of the GNU General Public License
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	19	* along with the IgH EtherCAT Master; if not, write to the Free Software
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	20	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	21	*
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	22	*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	23
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	24	/**
04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	25	\file
04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	26	Ethernet-over-EtherCAT (EoE).
04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	27	*/
04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	28
04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	29	/*****************************************************************************/
04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	30
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	31	#include <linux/etherdevice.h>
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	32
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	33	#include "../include/ecrt.h"
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	34	#include "globals.h"
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	35	#include "master.h"
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	36	#include "slave.h"
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	37	#include "mailbox.h"
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	38	#include "ethernet.h"
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	39
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	40	/*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	41
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	42	/**
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	43	Contains the private data of an EoE net_device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	44	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	45
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	46	typedef struct
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	47	{
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	48	struct net_device_stats stats; /*< device statistics /
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	49	ec_eoe_t eoe; /< pointer to parent eoe object /
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	50	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	51	ec_eoedev_priv_t;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	52
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	53	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	54
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	55	void ec_eoedev_init(struct net_device *);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	56	int ec_eoedev_open(struct net_device *);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	57	int ec_eoedev_stop(struct net_device *);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	58	int ec_eoedev_tx(struct sk_buff , struct net_device );
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	59	struct net_device_stats ec_eoedev_stats(struct net_device );
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	60	void ec_eoedev_rx(struct net_device , const uint8_t , size_t);
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	61
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	62	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	63
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	64	/**
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	65	EoE constructor.
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	66	*/
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	67
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	68	int ec_eoe_init(ec_eoe_t eoe, ec_slave_t slave)
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	69	{
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	70	ec_eoedev_priv_t *priv;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	71	int result;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	72
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	73	eoe->slave = slave;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	74	eoe->rx_state = EC_EOE_IDLE;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	75	eoe->opened = 0;
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	76
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	77	if (!(eoe->dev =
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	78	alloc_netdev(sizeof(ec_eoedev_priv_t), "eoe%d", ec_eoedev_init))) {
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	79	EC_ERR("Unable to allocate net_device for EoE object!\n");
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	80	goto out_return;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	81	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	82
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	83	// set EoE object reference
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	84	priv = netdev_priv(eoe->dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	85	priv->eoe = eoe;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	86
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	87	// connect the net_device to the kernel
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	88	if ((result = register_netdev(eoe->dev))) {
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	89	EC_ERR("Unable to register net_device: error %i\n", result);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	90	goto out_free;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	91	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	92
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	93	return 0;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	94
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	95	out_free:
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	96	free_netdev(eoe->dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	97	eoe->dev = NULL;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	98	out_return:
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	99	return -1;
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	100	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	101
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	102	/*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	103
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	104	/**
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	105	EoE destructor.
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	106	*/
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	107
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	108	void ec_eoe_clear(ec_eoe_t *eoe)
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	109	{
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	110	if (eoe->dev) {
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	111	unregister_netdev(eoe->dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	112	free_netdev(eoe->dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	113	}
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	114	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	115
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	116	/*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	117
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	118	/**
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	119	Runs the EoE state machine.
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	120	*/
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	121
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	122	void ec_eoe_run(ec_eoe_t *eoe)
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	123	{
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	124	uint8_t *data;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	125	ec_master_t *master;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	126	size_t rec_size;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	127	uint8_t fragment_number, frame_number, last_fragment, time_appended;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	128	uint8_t fragment_offset, frame_type;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	129
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	130	if (!eoe->opened) return;
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	131
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	132	master = eoe->slave->master;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	133
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	134	if (eoe->rx_state == EC_EOE_IDLE) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	135	ec_slave_mbox_prepare_check(eoe->slave);
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	136	ec_master_queue_command(master, &eoe->slave->mbox_command);
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	137	eoe->rx_state = EC_EOE_CHECKING;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	138	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	139	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	140
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	141	if (eoe->rx_state == EC_EOE_CHECKING) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	142	if (eoe->slave->mbox_command.state != EC_CMD_RECEIVED) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	143	master->stats.eoe_errors++;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	144	eoe->rx_state = EC_EOE_IDLE;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	145	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	146	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	147	if (!ec_slave_mbox_check(eoe->slave)) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	148	eoe->rx_state = EC_EOE_IDLE;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	149	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	150	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	151	ec_slave_mbox_prepare_fetch(eoe->slave);
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	152	ec_master_queue_command(master, &eoe->slave->mbox_command);
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	153	eoe->rx_state = EC_EOE_FETCHING;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	154	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	155	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	156
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	157	if (eoe->rx_state == EC_EOE_FETCHING) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	158	if (eoe->slave->mbox_command.state != EC_CMD_RECEIVED) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	159	master->stats.eoe_errors++;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	160	eoe->rx_state = EC_EOE_IDLE;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	161	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	162	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	163	if (!(data = ec_slave_mbox_fetch(eoe->slave, 0x02, &rec_size))) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	164	master->stats.eoe_errors++;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	165	eoe->rx_state = EC_EOE_IDLE;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	166	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	167	}
146 73a5f7dd3024 Versuche mit EoE. Florian Pose <fp@igh-essen.com> parents: 145 diff changeset	168
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	169	frame_type = EC_READ_U16(data) & 0x000F;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	170
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	171	if (frame_type == 0x00) { // EoE Fragment Request
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	172	last_fragment = (EC_READ_U16(data) >> 8) & 0x0001;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	173	time_appended = (EC_READ_U16(data) >> 9) & 0x0001;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	174	fragment_number = EC_READ_U16(data + 2) & 0x003F;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	175	fragment_offset = (EC_READ_U16(data + 2) >> 6) & 0x003F;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	176	frame_number = (EC_READ_U16(data + 2) >> 12) & 0x000F;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	177
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	178	#if 0
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	179	EC_DBG("EOE fragment req received, fragment: %i, offset: %i,"
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	180	" frame %i%s%s, %i bytes\n", fragment_number,
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	181	fragment_offset, frame_number,
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	182	last_fragment ? ", last fragment" : "",
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	183	time_appended ? ", + timestamp" : "",
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	184	time_appended ? rec_size - 8 : rec_size - 4);
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	185
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	186	#if 0
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	187	EC_DBG("");
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	188	for (i = 0; i < rec_size - 4; i++) {
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	189	printk("%02X ", data[i + 4]);
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	190	if ((i + 1) % 16 == 0) {
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	191	printk("\n");
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	192	EC_DBG("");
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	193	}
146 73a5f7dd3024 Versuche mit EoE. Florian Pose <fp@igh-essen.com> parents: 145 diff changeset	194	}
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	195	printk("\n");
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	196	#endif
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	197	#endif
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	198
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	199	ec_eoedev_rx(eoe->dev, data + 4,
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	200	time_appended ? rec_size - 8 : rec_size - 4);
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	201	}
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	202	else {
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	203	#if 1
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	204	EC_DBG("other frame received.\n");
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	205	#endif
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	206	}
146 73a5f7dd3024 Versuche mit EoE. Florian Pose <fp@igh-essen.com> parents: 145 diff changeset	207
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	208	eoe->rx_state = EC_EOE_IDLE;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	209	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	210	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	211	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	212
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	213	/*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	214
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	215	/**
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	216	Prints EoE object information.
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	217	*/
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	218
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	219	void ec_eoe_print(const ec_eoe_t *eoe)
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	220	{
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	221	EC_INFO(" EoE slave %i\n", eoe->slave->ring_position);
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	222	EC_INFO(" RX State %i\n", eoe->rx_state);
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	223	EC_INFO(" Assigned device: %s (%s)\n", eoe->dev->name,
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	224	eoe->opened ? "opened" : "closed");
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	225	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	226
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	227	/*****************************************************************************/
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	228
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	229	/**
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	230	Initializes a net_device structure for an EoE object.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	231	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	232
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	233	void ec_eoedev_init(struct net_device dev /< pointer to the net_device /)
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	234	{
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	235	ec_eoedev_priv_t *priv;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	236	unsigned int i;
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	237
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	238	// initialize net_device
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	239	ether_setup(dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	240	dev->open = ec_eoedev_open;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	241	dev->stop = ec_eoedev_stop;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	242	dev->hard_start_xmit = ec_eoedev_tx;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	243	dev->get_stats = ec_eoedev_stats;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	244
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	245	for (i = 0; i < 6; i++) dev->dev_addr[i] = (i + 1) \| (i + 1) << 4;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	246
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	247	// initialize private data
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	248	priv = netdev_priv(dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	249	memset(priv, 0, sizeof(ec_eoedev_priv_t));
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	250	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	251
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	252	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	253
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	254	/**
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	255	Opens the virtual network device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	256	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	257
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	258	int ec_eoedev_open(struct net_device dev /< EoE net_device /)
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	259	{
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	260	ec_eoedev_priv_t *priv = netdev_priv(dev);
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	261	priv->eoe->opened = 1;
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	262	netif_start_queue(dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	263	EC_INFO("%s (slave %i) opened.\n", dev->name,
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	264	priv->eoe->slave->ring_position);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	265	return 0;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	266	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	267
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	268	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	269
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	270	/**
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	271	Stops the virtual network device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	272	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	273
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	274	int ec_eoedev_stop(struct net_device dev /< EoE net_device /)
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	275	{
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	276	ec_eoedev_priv_t *priv = netdev_priv(dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	277	netif_stop_queue(dev);
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	278	priv->eoe->opened = 0;
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	279	EC_INFO("%s (slave %i) stopped.\n", dev->name,
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	280	priv->eoe->slave->ring_position);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	281	return 0;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	282	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	283
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	284	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	285
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	286	/**
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	287	Transmits data via the virtual network device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	288	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	289
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	290	int ec_eoedev_tx(struct sk_buff skb, /< transmit socket buffer /
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	291	struct net_device dev /< EoE net_device /
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	292	)
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	293	{
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	294	ec_eoedev_priv_t *priv = netdev_priv(dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	295	priv->stats.tx_packets++;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	296	dev_kfree_skb(skb);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	297	EC_INFO("EoE device sent %i octets.\n", skb->len);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	298	return 0;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	299	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	300
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	301	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	302
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	303	/**
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	304	Receives data from the bus and passes it to the network stack.
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	305	*/
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	306
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	307	void ec_eoedev_rx(struct net_device dev, /< EoE net_device /
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	308	const uint8_t data, /< pointer to the data /
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	309	size_t size /*< size of the received data /
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	310	)
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	311	{
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	312	ec_eoedev_priv_t *priv = netdev_priv(dev);
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	313	struct sk_buff *skb;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	314
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	315	// allocate socket buffer
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	316	if (!(skb = dev_alloc_skb(size + 2))) {
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	317	if (printk_ratelimit())
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	318	EC_WARN("EoE RX: low on mem. frame dropped.\n");
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	319	priv->stats.rx_dropped++;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	320	return;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	321	}
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	322
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	323	// copy received data to socket buffer
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	324	memcpy(skb_put(skb, size), data, size);
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	325
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	326	// set socket buffer fields
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	327	skb->dev = dev;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	328	skb->protocol = eth_type_trans(skb, dev);
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	329	skb->ip_summed = CHECKSUM_UNNECESSARY;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	330
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	331	// update statistics
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	332	priv->stats.rx_packets++;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	333	priv->stats.rx_bytes += size;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	334
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	335	// pass socket buffer to network stack
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	336	netif_rx(skb);
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	337	}
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	338
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	339	/*****************************************************************************/
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	340
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	341	/**
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	342	Gets statistics about the virtual network device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	343	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	344
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	345	struct net_device_stats ec_eoedev_stats(struct net_device dev
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	346	/*< EoE net_device /)
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	347	{
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	348	ec_eoedev_priv_t *priv = netdev_priv(dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	349	return &priv->stats;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	350	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	351
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	352	/*****************************************************************************/

author	Florian Pose <fp@igh-essen.com>
	Wed, 26 Apr 2006 16:43:01 +0000
changeset 210	1cc6bcb1e6ae
parent 208	b7797f8a813d
child 212	82980deb8b00
permissions	-rw-r--r--