diff -r 84a64efca00d -r 1b755b7342eb master/fmmu.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/master/fmmu.c Wed Mar 07 13:29:29 2007 +0000 @@ -0,0 +1,97 @@ +/****************************************************************************** + * + * $Id$ + * + * 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 methods. +*/ + +/*****************************************************************************/ + +#include "globals.h" +#include "slave.h" +#include "master.h" +#include "fmmu.h" + +/*****************************************************************************/ + +/** + * FMMU Constructor. + */ + +void ec_fmmu_init( + ec_fmmu_t *fmmu, /**< EtherCAT FMMU */ + ec_slave_t *slave, /**< EtherCAT slave */ + unsigned int index /**< FMMU index */ + ) +{ + fmmu->slave = slave; + fmmu->index = index; +} + +/*****************************************************************************/ + +/** + * Initializes an FMMU configuration page. + * The referenced memory (\a data) must be at least EC_FMMU_SIZE bytes. + */ + +void ec_fmmu_config( + const ec_fmmu_t *fmmu, /**< EtherCAT FMMU */ + uint8_t *data /**> configuration memory */ + ) +{ + size_t sync_size; + + sync_size = ec_slave_calc_sync_size(fmmu->slave, fmmu->sync); + + if (fmmu->slave->master->debug_level) { + EC_DBG("FMMU%u: LogAddr 0x%08X, Size %3i, PhysAddr 0x%04X, Dir %s\n", + fmmu->index, fmmu->logical_start_address, + sync_size, fmmu->sync->physical_start_address, + ((fmmu->sync->control_register & 0x04) ? "out" : "in")); + } + + EC_WRITE_U32(data, fmmu->logical_start_address); + EC_WRITE_U16(data + 4, sync_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, fmmu->sync->physical_start_address); + EC_WRITE_U8 (data + 10, 0x00); // physical start bit + EC_WRITE_U8 (data + 11, ((fmmu->sync->control_register & 0x04) + ? 0x02 : 0x01)); + EC_WRITE_U16(data + 12, 0x0001); // enable + EC_WRITE_U16(data + 14, 0x0000); // reserved +} + +/*****************************************************************************/