diff -r 3b81d074735c -r 3778920f61e4 master/fmmu_config.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/master/fmmu_config.c Tue Feb 19 08:22:20 2008 +0000 @@ -0,0 +1,100 @@ +/****************************************************************************** + * + * $Id$ + * + * Copyright (C) 2006 Florian Pose, Ingenieurgemeinschaft IgH + * + * This file is part of the IgH EtherCAT Master. + * + * The IgH EtherCAT Master is free software; you can redistribute it + * and/or modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * The IgH EtherCAT Master is distributed in the hope that it will be + * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with the IgH EtherCAT Master; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * The right to use EtherCAT Technology is granted and comes free of + * charge under condition of compatibility of product made by + * Licensee. People intending to distribute/sell products based on the + * code, have to sign an agreement to guarantee that products using + * software based on IgH EtherCAT master stay compatible with the actual + * EtherCAT specification (which are released themselves as an open + * standard) as the (only) precondition to have the right to use EtherCAT + * Technology, IP and trade marks. + * + *****************************************************************************/ + +/** \file + * EtherCAT FMMU configuration methods. + */ + +/*****************************************************************************/ + +#include "globals.h" +#include "slave_config.h" +#include "master.h" + +#include "fmmu_config.h" + +/*****************************************************************************/ + +/** FMMU configuration constructor. + * + * Inits an FMMU configuration, sets the logical start address and adds the + * process data size for the mapped PDOs of the given direction to the domain + * data size. + */ +void ec_fmmu_config_init( + ec_fmmu_config_t *fmmu, /**< EtherCAT FMMU configuration. */ + ec_slave_config_t *sc, /**< EtherCAT slave configuration. */ + ec_domain_t *domain, /**< EtherCAT domain. */ + ec_direction_t dir /**< PDO direction. */ + ) +{ + fmmu->sc = sc; + fmmu->domain = domain; + fmmu->dir = dir; + + fmmu->logical_start_address = domain->data_size; + fmmu->data_size = ec_pdo_mapping_total_size(&sc->mapping[dir]); + domain->data_size += fmmu->data_size; +} + +/*****************************************************************************/ + +/** Initializes an FMMU configuration page. + * + * The referenced memory (\a data) must be at least EC_FMMU_PAGE_SIZE bytes. + */ +void ec_fmmu_config_page( + const ec_fmmu_config_t *fmmu, /**< EtherCAT FMMU configuration. */ + const ec_sync_t *sync, /**< Sync manager. */ + uint8_t *data /**> Configuration page memory. */ + ) +{ + if (fmmu->sc->master->debug_level) { + EC_DBG("FMMU: LogAddr 0x%08X, Size %3i, PhysAddr 0x%04X, Dir %s\n", + fmmu->logical_start_address, fmmu->data_size, + sync->physical_start_address, + (sync->control_register & 0x04) ? "out" : "in"); + } + + EC_WRITE_U32(data, fmmu->logical_start_address); + EC_WRITE_U16(data + 4, fmmu->data_size); // size of fmmu + EC_WRITE_U8 (data + 6, 0x00); // logical start bit + EC_WRITE_U8 (data + 7, 0x07); // logical end bit + EC_WRITE_U16(data + 8, sync->physical_start_address); + EC_WRITE_U8 (data + 10, 0x00); // physical start bit + EC_WRITE_U8 (data + 11, (sync->control_register & 0x04) ? 0x02 : 0x01); + EC_WRITE_U16(data + 12, 0x0001); // enable + EC_WRITE_U16(data + 14, 0x0000); // reserved +} + +/*****************************************************************************/