diff -r 2ec9651a6c89 -r 235f34ca50e2 master/fsm_pdo_mapping.c --- a/master/fsm_pdo_mapping.c Thu Jul 31 09:30:38 2008 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,383 +0,0 @@ -/****************************************************************************** - * - * $Id$ - * - * 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 Pdo mapping state machine. - */ - -/*****************************************************************************/ - -#include "globals.h" -#include "master.h" -#include "mailbox.h" -#include "slave_config.h" - -#include "fsm_pdo_mapping.h" - -/*****************************************************************************/ - -void ec_fsm_pdo_mapping_state_start(ec_fsm_pdo_mapping_t *); -void ec_fsm_pdo_mapping_state_zero_count(ec_fsm_pdo_mapping_t *); -void ec_fsm_pdo_mapping_state_add_entry(ec_fsm_pdo_mapping_t *); -void ec_fsm_pdo_mapping_state_entry_count(ec_fsm_pdo_mapping_t *); -void ec_fsm_pdo_mapping_state_end(ec_fsm_pdo_mapping_t *); -void ec_fsm_pdo_mapping_state_error(ec_fsm_pdo_mapping_t *); - -void ec_fsm_pdo_mapping_next_pdo(ec_fsm_pdo_mapping_t *); - -/*****************************************************************************/ - -/** Constructor. - */ -void ec_fsm_pdo_mapping_init( - ec_fsm_pdo_mapping_t *fsm, /**< Pdo mapping state machine. */ - ec_fsm_coe_t *fsm_coe /**< CoE state machine to use. */ - ) -{ - fsm->fsm_coe = fsm_coe; - ec_sdo_request_init(&fsm->request); -} - -/*****************************************************************************/ - -/** Destructor. - */ -void ec_fsm_pdo_mapping_clear( - ec_fsm_pdo_mapping_t *fsm /**< Pdo mapping state machine. */ - ) -{ - ec_sdo_request_clear(&fsm->request); -} - -/*****************************************************************************/ - -/** Start Pdo mapping state machine. - */ -void ec_fsm_pdo_mapping_start( - ec_fsm_pdo_mapping_t *fsm, /**< Pdo mapping state machine. */ - ec_slave_t *slave /**< slave to configure */ - ) -{ - fsm->slave = slave; - fsm->state = ec_fsm_pdo_mapping_state_start; -} - -/*****************************************************************************/ - -/** Get running state. - * - * \return false, if state machine has terminated - */ -int ec_fsm_pdo_mapping_running( - const ec_fsm_pdo_mapping_t *fsm /**< Pdo mapping state machine. */ - ) -{ - return fsm->state != ec_fsm_pdo_mapping_state_end - && fsm->state != ec_fsm_pdo_mapping_state_error; -} - -/*****************************************************************************/ - -/** Executes the current state. - * - * \return false, if state machine has terminated - */ -int ec_fsm_pdo_mapping_exec( - ec_fsm_pdo_mapping_t *fsm /**< Pdo mapping state machine. */ - ) -{ - fsm->state(fsm); - return ec_fsm_pdo_mapping_running(fsm); -} - -/*****************************************************************************/ - -/** Get execution result. - * - * \return true, if the state machine terminated gracefully - */ -int ec_fsm_pdo_mapping_success( - const ec_fsm_pdo_mapping_t *fsm /**< Pdo mapping state machine. */ - ) -{ - return fsm->state == ec_fsm_pdo_mapping_state_end; -} - -/****************************************************************************** - * State functions. - *****************************************************************************/ - -/** Start Pdo mapping. - */ -void ec_fsm_pdo_mapping_state_start( - ec_fsm_pdo_mapping_t *fsm /**< Pdo mapping state machine. */ - ) -{ - if (!fsm->slave->config) { - fsm->state = ec_fsm_pdo_mapping_state_end; - return; - } - - fsm->pdo = NULL; - fsm->num_configured_pdos = 0; - ec_fsm_pdo_mapping_next_pdo(fsm); -} - -/*****************************************************************************/ - -/** Process mapping of next Pdo. - */ -void ec_fsm_pdo_mapping_next_pdo( - ec_fsm_pdo_mapping_t *fsm /**< Pdo mapping state machine. */ - ) -{ - uint8_t sync_index; - const ec_pdo_list_t *pdos; - const ec_pdo_t *pdo, *assigned_pdo; - - for (sync_index = 0; sync_index < EC_MAX_SYNC_MANAGERS; sync_index++) { - pdos = &fsm->slave->config->sync_configs[sync_index].pdos; - - list_for_each_entry(pdo, &pdos->list, list) { - if (fsm->pdo) { // there was a Pdo mapping changed in the last run - if (pdo == fsm->pdo) // this is the previously configured Pdo - fsm->pdo = NULL; // take the next one - } else { - if ((assigned_pdo = ec_slave_find_pdo(fsm->slave, pdo->index))) - if (ec_pdo_equal_entries(pdo, assigned_pdo)) - continue; // Pdo entries mapped correctly - - fsm->pdo = pdo; - fsm->num_configured_pdos++; - break; - } - } - } - - if (!fsm->pdo) { - if (fsm->slave->master->debug_level && !fsm->num_configured_pdos) - EC_DBG("Pdo mappings are already configured correctly.\n"); - fsm->state = ec_fsm_pdo_mapping_state_end; - return; - } - - // Pdo mapping has to be changed. Does the slave support this? - if (!(fsm->slave->sii.mailbox_protocols & EC_MBOX_COE) - || (fsm->slave->sii.has_general - && !fsm->slave->sii.coe_details.enable_pdo_configuration)) { - EC_WARN("Slave %u does not support Pdo mapping configuration!\n", - fsm->slave->ring_position); - fsm->state = ec_fsm_pdo_mapping_state_error; - return; - } - - if (fsm->slave->master->debug_level) { - EC_DBG("Changing mapping of Pdo 0x%04X.\n", fsm->pdo->index); - } - - if (ec_sdo_request_alloc(&fsm->request, 4)) { - fsm->state = ec_fsm_pdo_mapping_state_error; - return; - } - - // set mapped Pdo count to zero - EC_WRITE_U8(fsm->request.data, 0); - fsm->request.data_size = 1; - ec_sdo_request_address(&fsm->request, fsm->pdo->index, 0); - ecrt_sdo_request_write(&fsm->request); - if (fsm->slave->master->debug_level) - EC_DBG("Setting entry count to zero.\n"); - - fsm->state = ec_fsm_pdo_mapping_state_zero_count; - ec_fsm_coe_transfer(fsm->fsm_coe, fsm->slave, &fsm->request); - ec_fsm_coe_exec(fsm->fsm_coe); // execute immediately -} - -/*****************************************************************************/ - -/** Process next Pdo entry. - */ -ec_pdo_entry_t *ec_fsm_pdo_mapping_next_entry( - const ec_fsm_pdo_mapping_t *fsm, /**< Pdo mapping state machine. */ - const struct list_head *list /**< current entry list item */ - ) -{ - list = list->next; - if (list == &fsm->pdo->entries) - return NULL; // no next entry - return list_entry(list, ec_pdo_entry_t, list); -} - -/*****************************************************************************/ - -/** Starts to add a Pdo entry. - */ -void ec_fsm_pdo_mapping_add_entry( - ec_fsm_pdo_mapping_t *fsm /**< Pdo mapping state machine. */ - ) -{ - uint32_t value; - - if (fsm->slave->master->debug_level) - EC_DBG("Mapping Pdo entry 0x%04X:%02X (%u bit) at position %u.\n", - fsm->entry->index, fsm->entry->subindex, - fsm->entry->bit_length, fsm->entry_count); - - value = fsm->entry->index << 16 - | fsm->entry->subindex << 8 | fsm->entry->bit_length; - EC_WRITE_U32(fsm->request.data, value); - fsm->request.data_size = 4; - ec_sdo_request_address(&fsm->request, fsm->pdo->index, fsm->entry_count); - ecrt_sdo_request_write(&fsm->request); - - fsm->state = ec_fsm_pdo_mapping_state_add_entry; - ec_fsm_coe_transfer(fsm->fsm_coe, fsm->slave, &fsm->request); - ec_fsm_coe_exec(fsm->fsm_coe); // execute immediately -} - -/*****************************************************************************/ - -/** Set the number of mapped entries to zero. - */ -void ec_fsm_pdo_mapping_state_zero_count( - ec_fsm_pdo_mapping_t *fsm /**< Pdo mapping state machine. */ - ) -{ - if (ec_fsm_coe_exec(fsm->fsm_coe)) return; - - if (!ec_fsm_coe_success(fsm->fsm_coe)) { - EC_WARN("Failed to clear mapping of Pdo 0x%04X.\n", fsm->pdo->index); - fsm->state = ec_fsm_pdo_mapping_state_error; - return; - } - - // find first entry - if (!(fsm->entry = - ec_fsm_pdo_mapping_next_entry(fsm, &fsm->pdo->entries))) { - if (fsm->slave->master->debug_level) - EC_DBG("No entries to map.\n"); - ec_fsm_pdo_mapping_next_pdo(fsm); - return; - } - - // add first entry - fsm->entry_count = 1; - ec_fsm_pdo_mapping_add_entry(fsm); -} - -/*****************************************************************************/ - -/** Add a Pdo entry. - */ -void ec_fsm_pdo_mapping_state_add_entry( - ec_fsm_pdo_mapping_t *fsm /**< Pdo mapping state machine. */ - ) -{ - if (ec_fsm_coe_exec(fsm->fsm_coe)) return; - - if (!ec_fsm_coe_success(fsm->fsm_coe)) { - EC_WARN("Failed to map Pdo entry 0x%04X:%02X at 0x%04X:%02X.\n", - fsm->entry->index, fsm->entry->subindex, fsm->pdo->index, - fsm->entry_count); - fsm->state = ec_fsm_pdo_mapping_state_error; - return; - } - - // find next entry - if (!(fsm->entry = ec_fsm_pdo_mapping_next_entry(fsm, &fsm->entry->list))) { - // No more entries to add. Write entry count. - EC_WRITE_U8(fsm->request.data, fsm->entry_count); - fsm->request.data_size = 1; - ec_sdo_request_address(&fsm->request, fsm->pdo->index, 0); - ecrt_sdo_request_write(&fsm->request); - - if (fsm->slave->master->debug_level) - EC_DBG("Setting number of Pdo entries to %u.\n", fsm->entry_count); - - fsm->state = ec_fsm_pdo_mapping_state_entry_count; - ec_fsm_coe_transfer(fsm->fsm_coe, fsm->slave, &fsm->request); - ec_fsm_coe_exec(fsm->fsm_coe); // execute immediately - return; - } - - // add next entry - fsm->entry_count++; - ec_fsm_pdo_mapping_add_entry(fsm); -} - -/*****************************************************************************/ - -/** Set the number of entries. - */ -void ec_fsm_pdo_mapping_state_entry_count( - ec_fsm_pdo_mapping_t *fsm /**< Pdo mapping state machine. */ - ) -{ - if (ec_fsm_coe_exec(fsm->fsm_coe)) return; - - if (!ec_fsm_coe_success(fsm->fsm_coe)) { - EC_WARN("Failed to set number of entries for Pdo 0x%04X.\n", - fsm->pdo->index); - fsm->state = ec_fsm_pdo_mapping_state_error; - return; - } - - if (fsm->slave->master->debug_level) - EC_DBG("Pdo mapping configuration successful.\n"); - - ec_fsm_pdo_mapping_next_pdo(fsm); -} - -/****************************************************************************** - * Common state functions - *****************************************************************************/ - -/** State: ERROR. - */ -void ec_fsm_pdo_mapping_state_error( - ec_fsm_pdo_mapping_t *fsm /**< Pdo mapping state machine. */ - ) -{ -} - -/*****************************************************************************/ - -/** State: END. - */ -void ec_fsm_pdo_mapping_state_end( - ec_fsm_pdo_mapping_t *fsm /**< Pdo mapping state machine. */ - ) -{ -} - -/*****************************************************************************/