master/voe_handler.c
author Florian Pose <fp@igh-essen.com>
Wed, 06 May 2009 14:59:21 +0000
changeset 1450 117f5497efd9
parent 1363 11c0b2caa253
child 1507 68e89abadd19
permissions -rw-r--r--
TODO.
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/******************************************************************************
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 *
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 *  $Id$
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 *
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 *  Copyright (C) 2006-2008  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 and/or
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 *  modify it under the terms of the GNU General Public License version 2, as
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 *  published by the Free Software Foundation.
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 *
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 *  The IgH EtherCAT Master is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
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 *  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 along
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 *  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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 *  ---
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 *
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 *  The license mentioned above concerns the source code only. Using the
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 *  EtherCAT technology and brand is only permitted in compliance with the
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 *  industrial property and similar rights of Beckhoff Automation GmbH.
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 *
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 *****************************************************************************/
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/** \file
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 * Vendor specific over EtherCAT protocol handler functions.
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 */
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/*****************************************************************************/
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#include <linux/module.h>
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#include "master.h"
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#include "slave_config.h"
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#include "mailbox.h"
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#include "voe_handler.h"
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/** VoE mailbox type.
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 */
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#define EC_MBOX_TYPE_VOE 0x0f
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/** VoE header size.
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 */
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#define EC_VOE_HEADER_SIZE 6
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/** VoE response timeout in [ms].
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 */
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#define EC_VOE_RESPONSE_TIMEOUT 500
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/*****************************************************************************/
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void ec_voe_handler_state_write_start(ec_voe_handler_t *);
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void ec_voe_handler_state_write_response(ec_voe_handler_t *);
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void ec_voe_handler_state_read_start(ec_voe_handler_t *);
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void ec_voe_handler_state_read_check(ec_voe_handler_t *);
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void ec_voe_handler_state_read_response(ec_voe_handler_t *);
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void ec_voe_handler_state_read_nosync_start(ec_voe_handler_t *);
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void ec_voe_handler_state_read_nosync_response(ec_voe_handler_t *);
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void ec_voe_handler_state_end(ec_voe_handler_t *);
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void ec_voe_handler_state_error(ec_voe_handler_t *);
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/*****************************************************************************/
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/** VoE handler constructor.
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 *
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 * \return Return value of ec_datagram_prealloc().
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 */
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int ec_voe_handler_init(
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        ec_voe_handler_t *voe, /**< VoE handler. */
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        ec_slave_config_t *sc, /**< Parent slave configuration. */
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        size_t size /**< Size of memory to reserve. */
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        )
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{
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    voe->config = sc;
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    voe->vendor_id = 0x00000000;
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    voe->vendor_type = 0x0000;
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    voe->data_size = 0;
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    voe->dir = EC_DIR_INVALID;
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    voe->state = ec_voe_handler_state_error;
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    voe->request_state = EC_INT_REQUEST_INIT;
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    ec_datagram_init(&voe->datagram);
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    return ec_datagram_prealloc(&voe->datagram,
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            size + EC_MBOX_HEADER_SIZE + EC_VOE_HEADER_SIZE);
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}
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/*****************************************************************************/
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/** VoE handler destructor.
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 */
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void ec_voe_handler_clear(
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        ec_voe_handler_t *voe /**< VoE handler. */
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        )
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{
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    ec_datagram_clear(&voe->datagram);
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}
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/*****************************************************************************/
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/** Get usable memory size.
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 */
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size_t ec_voe_handler_mem_size(
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		const ec_voe_handler_t *voe /**< VoE handler. */
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		)
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{
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	if (voe->datagram.mem_size >= EC_MBOX_HEADER_SIZE + EC_VOE_HEADER_SIZE)
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		return voe->datagram.mem_size -
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			(EC_MBOX_HEADER_SIZE + EC_VOE_HEADER_SIZE);
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	else
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		return 0;
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}
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/*****************************************************************************
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 * Application interface.
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 ****************************************************************************/
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void ecrt_voe_handler_send_header(ec_voe_handler_t *voe, uint32_t vendor_id,
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        uint16_t vendor_type)
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{
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    voe->vendor_id = vendor_id;
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    voe->vendor_type = vendor_type;
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}
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/*****************************************************************************/
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void ecrt_voe_handler_received_header(const ec_voe_handler_t *voe,
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        uint32_t *vendor_id, uint16_t *vendor_type)
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{
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    uint8_t *header = voe->datagram.data + EC_MBOX_HEADER_SIZE;
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    if (vendor_id)
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        *vendor_id = EC_READ_U32(header);
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    if (vendor_type)
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        *vendor_type = EC_READ_U16(header + 4);
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}
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/*****************************************************************************/
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uint8_t *ecrt_voe_handler_data(ec_voe_handler_t *voe)
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{
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    return voe->datagram.data + EC_MBOX_HEADER_SIZE + EC_VOE_HEADER_SIZE;
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}
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/*****************************************************************************/
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size_t ecrt_voe_handler_data_size(const ec_voe_handler_t *voe)
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{
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    return voe->data_size;
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}
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/*****************************************************************************/
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void ecrt_voe_handler_read(ec_voe_handler_t *voe)
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{
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    voe->dir = EC_DIR_INPUT;
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    voe->state = ec_voe_handler_state_read_start;
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    voe->request_state = EC_INT_REQUEST_BUSY;
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}
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/*****************************************************************************/
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void ecrt_voe_handler_read_nosync(ec_voe_handler_t *voe)
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{
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    voe->dir = EC_DIR_INPUT;
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    voe->state = ec_voe_handler_state_read_nosync_start;
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    voe->request_state = EC_INT_REQUEST_BUSY;
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}
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/*****************************************************************************/
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void ecrt_voe_handler_write(ec_voe_handler_t *voe, size_t size)
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{
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    voe->dir = EC_DIR_OUTPUT;
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    voe->data_size = size;
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    voe->state = ec_voe_handler_state_write_start;
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    voe->request_state = EC_INT_REQUEST_BUSY;
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}
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/*****************************************************************************/
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ec_request_state_t ecrt_voe_handler_execute(ec_voe_handler_t *voe)
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{
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    if (voe->config->slave) { // FIXME locking?
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        voe->state(voe);
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        if (voe->request_state == EC_INT_REQUEST_BUSY)
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            ec_master_queue_datagram(voe->config->master, &voe->datagram);
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   195
    } else {
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        voe->state = ec_voe_handler_state_error;
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        voe->request_state = EC_INT_REQUEST_FAILURE;
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    }
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    return ec_request_state_translation_table[voe->request_state];
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}
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/******************************************************************************
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 * State functions.
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 *****************************************************************************/
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1268
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/** Start writing VoE data.
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 */
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void ec_voe_handler_state_write_start(ec_voe_handler_t *voe)
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{
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    ec_slave_t *slave = voe->config->slave;
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    uint8_t *data;
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    if (slave->master->debug_level) {
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        EC_DBG("Writing %u bytes of VoE data to slave %u.\n",
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               voe->data_size, slave->ring_position);
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        ec_print_data(ecrt_voe_handler_data(voe), voe->data_size);
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   218
    }
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   219
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    if (!(slave->sii.mailbox_protocols & EC_MBOX_VOE)) {
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   221
        EC_ERR("Slave %u does not support VoE!\n", slave->ring_position);
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        voe->state = ec_voe_handler_state_error;
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        voe->request_state = EC_INT_REQUEST_FAILURE;
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   224
        return;
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   225
    }
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   226
	
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    data = ec_slave_mbox_prepare_send(slave, &voe->datagram,
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            EC_MBOX_TYPE_VOE, EC_VOE_HEADER_SIZE + voe->data_size);
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   229
    if (IS_ERR(data)) {
1218
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   230
        voe->state = ec_voe_handler_state_error;
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   231
        voe->request_state = EC_INT_REQUEST_FAILURE;
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   232
        return;
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   233
    }
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   234
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   235
    EC_WRITE_U32(data,     voe->vendor_id);
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   236
    EC_WRITE_U16(data + 4, voe->vendor_type);
1209
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   237
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   238
    voe->retries = EC_FSM_RETRIES;
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   239
    voe->jiffies_start = jiffies;
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   240
    voe->state = ec_voe_handler_state_write_response;
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   241
}
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/*****************************************************************************/
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   244
1268
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   245
/** Wait for the mailbox response.
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   246
 */
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   247
void ec_voe_handler_state_write_response(ec_voe_handler_t *voe)
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   248
{
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   249
    ec_datagram_t *datagram = &voe->datagram;
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   250
    ec_slave_t *slave = voe->config->slave;
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   251
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   252
    if (datagram->state == EC_DATAGRAM_TIMED_OUT && voe->retries--)
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   253
        return;
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   254
8be462afb7f4 Added VoE handler.
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   255
    if (datagram->state != EC_DATAGRAM_RECEIVED) {
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   256
        voe->state = ec_voe_handler_state_error;
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   257
        voe->request_state = EC_INT_REQUEST_FAILURE;
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   258
        EC_ERR("Failed to receive VoE write request datagram for"
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diff changeset
   259
               " slave %u (datagram state %u).\n",
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   260
               slave->ring_position, datagram->state);
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   261
        return;
8be462afb7f4 Added VoE handler.
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diff changeset
   262
    }
8be462afb7f4 Added VoE handler.
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   263
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   264
    if (datagram->working_counter != 1) {
8be462afb7f4 Added VoE handler.
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diff changeset
   265
        if (!datagram->working_counter) {
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diff changeset
   266
            unsigned long diff_ms =
8be462afb7f4 Added VoE handler.
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   267
                (jiffies - voe->jiffies_start) * 1000 / HZ;
8be462afb7f4 Added VoE handler.
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parents:
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   268
            if (diff_ms < EC_VOE_RESPONSE_TIMEOUT) {
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diff changeset
   269
                if (slave->master->debug_level) {
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   270
                    EC_DBG("Slave %u did not respond to VoE write request. "
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   271
                            "Retrying after %u ms...\n",
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   272
                            slave->ring_position, (u32) diff_ms);
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   273
                }
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   274
                // no response; send request datagram again
8be462afb7f4 Added VoE handler.
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   275
                return;
8be462afb7f4 Added VoE handler.
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   276
            }
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   277
        }
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   278
        voe->state = ec_voe_handler_state_error;
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   279
        voe->request_state = EC_INT_REQUEST_FAILURE;
8be462afb7f4 Added VoE handler.
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parents:
diff changeset
   280
        EC_ERR("Reception of VoE write request failed on slave %u: ",
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   281
                slave->ring_position);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   282
        ec_datagram_print_wc_error(datagram);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   283
        return;
8be462afb7f4 Added VoE handler.
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parents:
diff changeset
   284
    }
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   285
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   286
    if (voe->config->master->debug_level)
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   287
        EC_DBG("VoE write request successful.\n");
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   288
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   289
    voe->request_state = EC_INT_REQUEST_SUCCESS;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   290
    voe->state = ec_voe_handler_state_end;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   291
}
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   292
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   293
/*****************************************************************************/
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   294
1268
d9599395e89b Maintained code docs.
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parents: 1264
diff changeset
   295
/** Start reading VoE data.
d9599395e89b Maintained code docs.
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parents: 1264
diff changeset
   296
 */
1209
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   297
void ec_voe_handler_state_read_start(ec_voe_handler_t *voe)
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   298
{
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   299
    ec_datagram_t *datagram = &voe->datagram;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   300
    ec_slave_t *slave = voe->config->slave;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   301
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   302
    if (slave->master->debug_level)
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   303
        EC_DBG("Reading VoE data to slave %u.\n", slave->ring_position);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   304
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   305
    if (!(slave->sii.mailbox_protocols & EC_MBOX_VOE)) {
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   306
        EC_ERR("Slave %u does not support VoE!\n", slave->ring_position);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   307
        voe->state = ec_voe_handler_state_error;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   308
        voe->request_state = EC_INT_REQUEST_FAILURE;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   309
        return;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   310
    }
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   311
	
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   312
    ec_slave_mbox_prepare_check(slave, datagram); // can not fail.
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   313
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   314
    voe->jiffies_start = jiffies;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   315
    voe->retries = EC_FSM_RETRIES;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   316
    voe->state = ec_voe_handler_state_read_check;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   317
}
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   318
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   319
/*****************************************************************************/
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   320
1268
d9599395e89b Maintained code docs.
Florian Pose <fp@igh-essen.com>
parents: 1264
diff changeset
   321
/** Check for new data in the mailbox.
d9599395e89b Maintained code docs.
Florian Pose <fp@igh-essen.com>
parents: 1264
diff changeset
   322
 */
1209
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   323
void ec_voe_handler_state_read_check(ec_voe_handler_t *voe)
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   324
{
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   325
    ec_datagram_t *datagram = &voe->datagram;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   326
    ec_slave_t *slave = voe->config->slave;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   327
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   328
    if (datagram->state == EC_DATAGRAM_TIMED_OUT && voe->retries--)
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   329
        return;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   330
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   331
    if (datagram->state != EC_DATAGRAM_RECEIVED) {
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   332
        voe->state = ec_voe_handler_state_error;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   333
        voe->request_state = EC_INT_REQUEST_FAILURE;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   334
        EC_ERR("Failed to receive VoE mailbox check datagram from slave %u"
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   335
                " (datagram state %u).\n",
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   336
               slave->ring_position, datagram->state);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   337
        return;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   338
    }
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   339
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   340
    if (datagram->working_counter != 1) {
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   341
        voe->state = ec_voe_handler_state_error;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   342
        voe->request_state = EC_INT_REQUEST_FAILURE;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   343
        EC_ERR("Reception of VoE mailbox check"
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   344
                " datagram failed on slave %u: ", slave->ring_position);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   345
        ec_datagram_print_wc_error(datagram);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   346
        return;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   347
    }
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   348
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   349
    if (!ec_slave_mbox_check(datagram)) {
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   350
        unsigned long diff_ms =
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   351
            (datagram->jiffies_received - voe->jiffies_start) * 1000 / HZ;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   352
        if (diff_ms >= EC_VOE_RESPONSE_TIMEOUT) {
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   353
            voe->state = ec_voe_handler_state_error;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   354
            voe->request_state = EC_INT_REQUEST_FAILURE;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   355
            EC_ERR("Timeout while waiting for VoE data on "
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   356
                    "slave %u.\n", slave->ring_position);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   357
            return;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   358
        }
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   359
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   360
        ec_slave_mbox_prepare_check(slave, datagram); // can not fail.
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   361
        voe->retries = EC_FSM_RETRIES;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   362
        return;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   363
    }
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   364
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   365
    // Fetch response
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   366
    ec_slave_mbox_prepare_fetch(slave, datagram); // can not fail.
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   367
    voe->retries = EC_FSM_RETRIES;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   368
    voe->state = ec_voe_handler_state_read_response;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   369
}
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   370
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   371
/*****************************************************************************/
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   372
1268
d9599395e89b Maintained code docs.
Florian Pose <fp@igh-essen.com>
parents: 1264
diff changeset
   373
/** Read the pending mailbox data.
d9599395e89b Maintained code docs.
Florian Pose <fp@igh-essen.com>
parents: 1264
diff changeset
   374
 */
1209
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   375
void ec_voe_handler_state_read_response(ec_voe_handler_t *voe)
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   376
{
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   377
    ec_datagram_t *datagram = &voe->datagram;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   378
    ec_slave_t *slave = voe->config->slave;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   379
    ec_master_t *master = voe->config->master;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   380
    uint8_t *data, mbox_prot;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   381
    size_t rec_size;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   382
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   383
    if (datagram->state == EC_DATAGRAM_TIMED_OUT && voe->retries--)
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   384
        return;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   385
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   386
    if (datagram->state != EC_DATAGRAM_RECEIVED) {
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   387
        voe->state = ec_voe_handler_state_error;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   388
        voe->request_state = EC_INT_REQUEST_FAILURE;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   389
        EC_ERR("Failed to receive VoE read datagram for"
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   390
               " slave %u (datagram state %u).\n",
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   391
               slave->ring_position, datagram->state);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   392
        return;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   393
    }
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   394
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   395
    if (datagram->working_counter != 1) {
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   396
        voe->state = ec_voe_handler_state_error;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   397
        voe->request_state = EC_INT_REQUEST_FAILURE;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   398
        EC_ERR("Reception of VoE read response failed on slave %u: ",
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   399
                slave->ring_position);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   400
        ec_datagram_print_wc_error(datagram);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   401
        return;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   402
    }
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   403
1313
ed15eef57d5c Improved error case return codes of many functions.
Florian Pose <fp@igh-essen.com>
parents: 1312
diff changeset
   404
    data = ec_slave_mbox_fetch(slave, datagram, &mbox_prot, &rec_size);
ed15eef57d5c Improved error case return codes of many functions.
Florian Pose <fp@igh-essen.com>
parents: 1312
diff changeset
   405
    if (IS_ERR(data)) {
1209
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   406
        voe->state = ec_voe_handler_state_error;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   407
        voe->request_state = EC_INT_REQUEST_FAILURE;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   408
        return;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   409
    }
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   410
1216
e70c4d71cebd Changed VoE mailbox type to 0xff.
Florian Pose <fp@igh-essen.com>
parents: 1209
diff changeset
   411
    if (mbox_prot != EC_MBOX_TYPE_VOE) {
1209
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   412
        voe->state = ec_voe_handler_state_error;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   413
        voe->request_state = EC_INT_REQUEST_FAILURE;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   414
        EC_WARN("Received mailbox protocol 0x%02X as response.\n", mbox_prot);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   415
        ec_print_data(data, rec_size);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   416
        return;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   417
    }
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   418
1218
6f3a973fc29e Introduced VoE header.
Florian Pose <fp@igh-essen.com>
parents: 1216
diff changeset
   419
    if (rec_size < EC_VOE_HEADER_SIZE) {
6f3a973fc29e Introduced VoE header.
Florian Pose <fp@igh-essen.com>
parents: 1216
diff changeset
   420
        voe->state = ec_voe_handler_state_error;
6f3a973fc29e Introduced VoE header.
Florian Pose <fp@igh-essen.com>
parents: 1216
diff changeset
   421
        voe->request_state = EC_INT_REQUEST_FAILURE;
6f3a973fc29e Introduced VoE header.
Florian Pose <fp@igh-essen.com>
parents: 1216
diff changeset
   422
        EC_ERR("Received VoE header is incomplete (%u bytes)!\n", rec_size);
6f3a973fc29e Introduced VoE header.
Florian Pose <fp@igh-essen.com>
parents: 1216
diff changeset
   423
        return;
6f3a973fc29e Introduced VoE header.
Florian Pose <fp@igh-essen.com>
parents: 1216
diff changeset
   424
    }
6f3a973fc29e Introduced VoE header.
Florian Pose <fp@igh-essen.com>
parents: 1216
diff changeset
   425
1209
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   426
    if (master->debug_level) {
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   427
        EC_DBG("VoE data:\n");
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   428
        ec_print_data(data, rec_size);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   429
    }
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   430
1218
6f3a973fc29e Introduced VoE header.
Florian Pose <fp@igh-essen.com>
parents: 1216
diff changeset
   431
    voe->data_size = rec_size - EC_VOE_HEADER_SIZE;
1209
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   432
    voe->request_state = EC_INT_REQUEST_SUCCESS;
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   433
    voe->state = ec_voe_handler_state_end; // success
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   434
}
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   435
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   436
/*****************************************************************************/
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   437
1314
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   438
/** Start reading VoE data without sending a sync message before.
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   439
 */
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   440
void ec_voe_handler_state_read_nosync_start(ec_voe_handler_t *voe)
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   441
{
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   442
    ec_datagram_t *datagram = &voe->datagram;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   443
    ec_slave_t *slave = voe->config->slave;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   444
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   445
    if (slave->master->debug_level)
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   446
        EC_DBG("Reading VoE data to slave %u.\n", slave->ring_position);
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   447
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   448
    if (!(slave->sii.mailbox_protocols & EC_MBOX_VOE)) {
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   449
        EC_ERR("Slave %u does not support VoE!\n", slave->ring_position);
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   450
        voe->state = ec_voe_handler_state_error;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   451
        voe->request_state = EC_INT_REQUEST_FAILURE;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   452
        return;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   453
    }
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   454
	
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   455
    ec_slave_mbox_prepare_fetch(slave, datagram); // can not fail.
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   456
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   457
    voe->jiffies_start = jiffies;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   458
    voe->retries = EC_FSM_RETRIES;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   459
    voe->state = ec_voe_handler_state_read_nosync_response;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   460
}
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   461
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   462
/*****************************************************************************/
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   463
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   464
/** Read the pending mailbox data without sending a sync message before. This
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   465
 *  might lead to an empty reponse from the client.
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   466
 */
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   467
void ec_voe_handler_state_read_nosync_response(ec_voe_handler_t *voe)
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   468
{
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   469
    ec_datagram_t *datagram = &voe->datagram;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   470
    ec_slave_t *slave = voe->config->slave;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   471
    ec_master_t *master = voe->config->master;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   472
    uint8_t *data, mbox_prot;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   473
    size_t rec_size;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   474
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   475
    if (datagram->state == EC_DATAGRAM_TIMED_OUT && voe->retries--)
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   476
        return;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   477
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   478
    if (datagram->state != EC_DATAGRAM_RECEIVED) {
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   479
        voe->state = ec_voe_handler_state_error;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   480
        voe->request_state = EC_INT_REQUEST_FAILURE;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   481
        EC_ERR("Failed to receive VoE read datagram for"
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   482
               " slave %u (datagram state %u).\n",
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   483
               slave->ring_position, datagram->state);
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   484
        return;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   485
    }
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   486
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   487
    if (datagram->working_counter == 0) {
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   488
        voe->state = ec_voe_handler_state_error;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   489
        voe->request_state = EC_INT_REQUEST_FAILURE;
1315
26b4f94cfdfb Output debug message only on debug level > 0.
Florian Pose <fp@igh-essen.com>
parents: 1314
diff changeset
   490
        if (master->debug_level)
26b4f94cfdfb Output debug message only on debug level > 0.
Florian Pose <fp@igh-essen.com>
parents: 1314
diff changeset
   491
            EC_DBG("Slave %u did not send VoE data.", slave->ring_position);
1314
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   492
        return;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   493
    }
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   494
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   495
    if (datagram->working_counter != 1) {
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   496
        voe->state = ec_voe_handler_state_error;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   497
        voe->request_state = EC_INT_REQUEST_FAILURE;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   498
        EC_WARN("Reception of VoE read response failed on slave %u: ",
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   499
                slave->ring_position);
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   500
        ec_datagram_print_wc_error(datagram);
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   501
        return;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   502
    }
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   503
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   504
    if (!(data = ec_slave_mbox_fetch(slave, datagram,
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   505
				     &mbox_prot, &rec_size))) {
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   506
        voe->state = ec_voe_handler_state_error;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   507
        voe->request_state = EC_INT_REQUEST_FAILURE;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   508
        return;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   509
    }
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   510
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   511
    if (mbox_prot != EC_MBOX_TYPE_VOE) {
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   512
        voe->state = ec_voe_handler_state_error;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   513
        voe->request_state = EC_INT_REQUEST_FAILURE;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   514
        EC_WARN("Received mailbox protocol 0x%02X as response.\n", mbox_prot);
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   515
        ec_print_data(data, rec_size);
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   516
        return;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   517
    }
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   518
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   519
    if (rec_size < EC_VOE_HEADER_SIZE) {
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   520
        voe->state = ec_voe_handler_state_error;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   521
        voe->request_state = EC_INT_REQUEST_FAILURE;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   522
        EC_ERR("Received VoE header is incomplete (%u bytes)!\n", rec_size);
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   523
        return;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   524
    }
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   525
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   526
    if (master->debug_level) {
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   527
        EC_DBG("VoE data:\n");
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   528
        ec_print_data(data, rec_size);
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   529
    }
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   530
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   531
    voe->data_size = rec_size - EC_VOE_HEADER_SIZE;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   532
    voe->request_state = EC_INT_REQUEST_SUCCESS;
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   533
    voe->state = ec_voe_handler_state_end; // success
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   534
}
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   535
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   536
/*****************************************************************************/
b3d06a8807b3 Included ecrt_voe_handler_read_nosync()-Patch by Mathias Weber.
Florian Pose <fp@igh-essen.com>
parents: 1313
diff changeset
   537
1268
d9599395e89b Maintained code docs.
Florian Pose <fp@igh-essen.com>
parents: 1264
diff changeset
   538
/** Successful termination state function.
d9599395e89b Maintained code docs.
Florian Pose <fp@igh-essen.com>
parents: 1264
diff changeset
   539
 */
1209
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   540
void ec_voe_handler_state_end(ec_voe_handler_t *voe)
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   541
{
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   542
}
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   543
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   544
/*****************************************************************************/
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   545
1268
d9599395e89b Maintained code docs.
Florian Pose <fp@igh-essen.com>
parents: 1264
diff changeset
   546
/** Failure termination state function.
d9599395e89b Maintained code docs.
Florian Pose <fp@igh-essen.com>
parents: 1264
diff changeset
   547
 */
1209
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   548
void ec_voe_handler_state_error(ec_voe_handler_t *voe)
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   549
{
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   550
}
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   551
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   552
/*****************************************************************************/
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   553
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   554
/** \cond */
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   555
1226
afb189516fcf Introduced ecrt_voe_handler_received_header(); renamed
Florian Pose <fp@igh-essen.com>
parents: 1224
diff changeset
   556
EXPORT_SYMBOL(ecrt_voe_handler_send_header);
afb189516fcf Introduced ecrt_voe_handler_received_header(); renamed
Florian Pose <fp@igh-essen.com>
parents: 1224
diff changeset
   557
EXPORT_SYMBOL(ecrt_voe_handler_received_header);
1209
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   558
EXPORT_SYMBOL(ecrt_voe_handler_data);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   559
EXPORT_SYMBOL(ecrt_voe_handler_data_size);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   560
EXPORT_SYMBOL(ecrt_voe_handler_read);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   561
EXPORT_SYMBOL(ecrt_voe_handler_write);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   562
EXPORT_SYMBOL(ecrt_voe_handler_execute);
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   563
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   564
/** \endcond */
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   565
8be462afb7f4 Added VoE handler.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   566
/*****************************************************************************/