diff -r 2ec9651a6c89 -r 235f34ca50e2 master/fsm_pdo_assign.c --- a/master/fsm_pdo_assign.c Thu Jul 31 09:30:38 2008 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,389 +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 assignment state machine. - */ - -/*****************************************************************************/ - -#include "globals.h" -#include "master.h" -#include "mailbox.h" -#include "slave_config.h" - -#include "fsm_pdo_assign.h" - -/*****************************************************************************/ - -void ec_fsm_pdo_assign_state_start(ec_fsm_pdo_assign_t *); -void ec_fsm_pdo_assign_state_zero_count(ec_fsm_pdo_assign_t *); -void ec_fsm_pdo_assign_state_add_pdo(ec_fsm_pdo_assign_t *); -void ec_fsm_pdo_assign_state_pdo_count(ec_fsm_pdo_assign_t *); -void ec_fsm_pdo_assign_state_end(ec_fsm_pdo_assign_t *); -void ec_fsm_pdo_assign_state_error(ec_fsm_pdo_assign_t *); - -void ec_fsm_pdo_assign_next_sync(ec_fsm_pdo_assign_t *); - -/*****************************************************************************/ - -/** Constructor. - */ -void ec_fsm_pdo_assign_init( - ec_fsm_pdo_assign_t *fsm, /**< Pdo assignment 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_assign_clear( - ec_fsm_pdo_assign_t *fsm /**< Pdo assignment state machine. */ - ) -{ - ec_sdo_request_clear(&fsm->request); -} - -/*****************************************************************************/ - -/** Start Pdo assignment state machine. - */ -void ec_fsm_pdo_assign_start( - ec_fsm_pdo_assign_t *fsm, /**< Pdo assignment state machine. */ - ec_slave_t *slave /**< slave to configure */ - ) -{ - fsm->slave = slave; - fsm->state = ec_fsm_pdo_assign_state_start; -} - -/*****************************************************************************/ - -/** Get running state. - * - * \return false, if state machine has terminated - */ -int ec_fsm_pdo_assign_running( - const ec_fsm_pdo_assign_t *fsm /**< Pdo assignment state machine. */ - ) -{ - return fsm->state != ec_fsm_pdo_assign_state_end - && fsm->state != ec_fsm_pdo_assign_state_error; -} - -/*****************************************************************************/ - -/** Executes the current state of the state machine. - * - * If the state machine's datagram is not sent or received yet, the execution - * of the state machine is delayed to the next cycle. - * - * \return false, if state machine has terminated - */ -int ec_fsm_pdo_assign_exec( - ec_fsm_pdo_assign_t *fsm /**< Pdo assignment state machine. */ - ) -{ - fsm->state(fsm); - return ec_fsm_pdo_assign_running(fsm); -} - -/*****************************************************************************/ - -/** Get execution result. - * - * \return true, if the state machine terminated gracefully - */ -int ec_fsm_pdo_assign_success( - const ec_fsm_pdo_assign_t *fsm /**< Pdo assignment state machine. */ - ) -{ - return fsm->state == ec_fsm_pdo_assign_state_end; -} - -/****************************************************************************** - * State functions. - *****************************************************************************/ - -/** Start Pdo assignment. - */ -void ec_fsm_pdo_assign_state_start( - ec_fsm_pdo_assign_t *fsm /**< Pdo assignment state machine. */ - ) -{ - if (!fsm->slave->config) { - fsm->state = ec_fsm_pdo_assign_state_end; - return; - } - - fsm->sync_index = 0xff; // next is zero - fsm->num_configured_syncs = 0; - ec_fsm_pdo_assign_next_sync(fsm); -} - -/*****************************************************************************/ - -/** Process Pdo assignment of next sync manager. - */ -void ec_fsm_pdo_assign_next_sync( - ec_fsm_pdo_assign_t *fsm /**< Pdo assignment state machine. */ - ) -{ - fsm->sync_index++; - - for (; fsm->sync_index < EC_MAX_SYNC_MANAGERS; fsm->sync_index++) { - fsm->pdos = &fsm->slave->config->sync_configs[fsm->sync_index].pdos; - - if (!(fsm->sync = ec_slave_get_sync(fsm->slave, fsm->sync_index))) { - if (!list_empty(&fsm->pdos->list)) { - EC_WARN("Slave %u does not provide a configuration " - "for SM%u!\n", fsm->slave->ring_position, - fsm->sync_index); - fsm->state = ec_fsm_pdo_assign_state_error; - return; - } - continue; - } - - // check if assignment has to be altered - if (ec_pdo_list_equal(&fsm->sync->pdos, fsm->pdos)) - continue; - - if (fsm->slave->master->debug_level) { - EC_DBG("Pdo assignment of SM%u differs:\n", fsm->sync_index); - EC_DBG("Currently assigned Pdos: "); - ec_pdo_list_print(&fsm->sync->pdos); - printk("\n"); - EC_DBG("Pdos to assign: "); - ec_pdo_list_print(fsm->pdos); - printk("\n"); - } - - // Pdo assignment 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_assign)) { - EC_WARN("Slave %u does not support assigning Pdos!\n", - fsm->slave->ring_position); - fsm->state = ec_fsm_pdo_assign_state_error; - return; - } - - fsm->num_configured_syncs++; - - if (ec_sdo_request_alloc(&fsm->request, 2)) { - fsm->state = ec_fsm_pdo_assign_state_error; - return; - } - - // set mapped Pdo count to zero - EC_WRITE_U8(fsm->request.data, 0); // zero Pdos mapped - fsm->request.data_size = 1; - ec_sdo_request_address(&fsm->request, 0x1C10 + fsm->sync_index, 0); - ecrt_sdo_request_write(&fsm->request); - - if (fsm->slave->master->debug_level) - EC_DBG("Setting Pdo count to zero.\n"); - - fsm->state = ec_fsm_pdo_assign_state_zero_count; - ec_fsm_coe_transfer(fsm->fsm_coe, fsm->slave, &fsm->request); - ec_fsm_coe_exec(fsm->fsm_coe); // execute immediately - return; - } - - if (fsm->slave->master->debug_level && !fsm->num_configured_syncs) - EC_DBG("Pdo assignments are already configured correctly.\n"); - fsm->state = ec_fsm_pdo_assign_state_end; -} - -/*****************************************************************************/ - -/** Assign next Pdo. - */ -ec_pdo_t *ec_fsm_pdo_assign_next_pdo( - const ec_fsm_pdo_assign_t *fsm, /**< Pdo assignment state machine. */ - const struct list_head *list /**< current Pdo list item */ - ) -{ - list = list->next; - if (list == &fsm->pdos->list) - return NULL; // no next Pdo - return list_entry(list, ec_pdo_t, list); -} - -/*****************************************************************************/ - -/** Assign a Pdo. - */ -void ec_fsm_pdo_assign_add_pdo( - ec_fsm_pdo_assign_t *fsm /**< Pdo assignment state machine. */ - ) -{ - EC_WRITE_U16(fsm->request.data, fsm->pdo->index); - fsm->request.data_size = 2; - ec_sdo_request_address(&fsm->request, - 0x1C10 + fsm->sync_index, fsm->pdo_count); - ecrt_sdo_request_write(&fsm->request); - - if (fsm->slave->master->debug_level) - EC_DBG("Assigning Pdo 0x%04X at position %u.\n", - fsm->pdo->index, fsm->pdo_count); - - fsm->state = ec_fsm_pdo_assign_state_add_pdo; - ec_fsm_coe_transfer(fsm->fsm_coe, fsm->slave, &fsm->request); - ec_fsm_coe_exec(fsm->fsm_coe); // execute immediately -} - -/*****************************************************************************/ - -/** Set the number of assigned Pdos to zero. - */ -void ec_fsm_pdo_assign_state_zero_count( - ec_fsm_pdo_assign_t *fsm /**< Pdo assignment state machine. */ - ) -{ - if (ec_fsm_coe_exec(fsm->fsm_coe)) return; - - if (!ec_fsm_coe_success(fsm->fsm_coe)) { - EC_WARN("Failed to clear Pdo assignment of SM%u.\n", fsm->sync_index); - fsm->state = ec_fsm_pdo_assign_state_error; - return; - } - - // assign all Pdos belonging to the current sync manager - - // find first Pdo - if (!(fsm->pdo = ec_fsm_pdo_assign_next_pdo(fsm, &fsm->pdos->list))) { - if (fsm->slave->master->debug_level) - EC_DBG("No Pdos to assign.\n"); - ec_fsm_pdo_assign_next_sync(fsm); - return; - } - - // assign first Pdo - fsm->pdo_count = 1; - ec_fsm_pdo_assign_add_pdo(fsm); -} - -/*****************************************************************************/ - -/** Add a Pdo to the sync managers Pdo assignment. - */ -void ec_fsm_pdo_assign_state_add_pdo( - ec_fsm_pdo_assign_t *fsm /**< Pdo assignment state machine. */ - ) -{ - if (ec_fsm_coe_exec(fsm->fsm_coe)) return; - - if (!ec_fsm_coe_success(fsm->fsm_coe)) { - EC_WARN("Failed to assign Pdo 0x%04X to position %u in SM%u.\n", - fsm->pdo->index, fsm->pdo_count, fsm->sync_index); - fsm->state = ec_fsm_pdo_assign_state_error; - return; - } - - // find next Pdo - if (!(fsm->pdo = ec_fsm_pdo_assign_next_pdo(fsm, &fsm->pdo->list))) { - // no more Pdos to map. write Pdo count - EC_WRITE_U8(fsm->request.data, fsm->pdo_count); - fsm->request.data_size = 1; - ec_sdo_request_address(&fsm->request, 0x1C10 + fsm->sync_index, 0); - ecrt_sdo_request_write(&fsm->request); - - if (fsm->slave->master->debug_level) - EC_DBG("Setting number of assigned Pdos to %u.\n", - fsm->pdo_count); - - fsm->state = ec_fsm_pdo_assign_state_pdo_count; - ec_fsm_coe_transfer(fsm->fsm_coe, fsm->slave, &fsm->request); - ec_fsm_coe_exec(fsm->fsm_coe); // execute immediately - return; - } - - // add next Pdo to assignment - fsm->pdo_count++; - ec_fsm_pdo_assign_add_pdo(fsm); -} - -/*****************************************************************************/ - -/** Set the number of assigned Pdos. - */ -void ec_fsm_pdo_assign_state_pdo_count( - ec_fsm_pdo_assign_t *fsm /**< Pdo assignment 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 assigned Pdos for SM%u.\n", - fsm->sync_index); - fsm->state = ec_fsm_pdo_assign_state_error; - return; - } - - if (fsm->slave->master->debug_level) - EC_DBG("Pdo assignment successful for SM%u.\n", fsm->sync_index); - - // assignment for this sync manager finished - ec_fsm_pdo_assign_next_sync(fsm); -} - -/****************************************************************************** - * Common state functions - *****************************************************************************/ - -/** State: ERROR. - */ -void ec_fsm_pdo_assign_state_error( - ec_fsm_pdo_assign_t *fsm /**< Pdo assignment state machine. */ - ) -{ -} - -/*****************************************************************************/ - -/** State: END. - */ -void ec_fsm_pdo_assign_state_end( - ec_fsm_pdo_assign_t *fsm /**< Pdo assignment state machine. */ - ) -{ -} - -/*****************************************************************************/