2019-06-12 20:52:35 +00:00
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/*
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* Hamlib Interface - extra parameter interface for amplifiers
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* Copyright (c) 2000-2008 by Stephane Fillod
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* Derived from ext.c
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* Copyright (c) 2019 by Michael Black W9MDB
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*
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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/**
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* \addtogroup amp
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* @{
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*/
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/**
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* \file ext.c
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* \brief Extension request parameter interface
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*
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* An open-ended set of extension parameters and levels are available for each
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* amp, as provided in the ampcaps extparms and extlevels lists. These
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* provide a way to work with amp-specific functions that don't fit into the
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* basic "virtual amp" of Hamlib. See amplifiers/kpa.c for an example.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdio.h> /* Standard input/output definitions */
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#include <string.h> /* String function definitions */
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#include <unistd.h> /* UNIX standard function definitions */
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#include <hamlib/amplifier.h>
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#include "token.h"
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/**
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* \param amp The amp handle
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* \param cfunc callback function of each extlevel
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* \param data cookie to be passed to \a cfunc callback
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* \brief Executes cfunc on all the elements stored in the extlevels table
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*
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* The callback \a cfunc is called until it returns a value which is not
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* strictly positive. A zero value means a normal end of iteration, and a
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* negative value an abnormal end, which will be the return value of
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* amp_ext_level_foreach.
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*/
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int HAMLIB_API amp_ext_level_foreach(AMP *amp,
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int (*cfunc)(AMP *,
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2019-11-30 16:19:08 +00:00
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const struct confparams *,
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amp_ptr_t),
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2019-06-12 20:52:35 +00:00
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amp_ptr_t data)
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{
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const struct confparams *cfp;
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rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
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if (!amp || !amp->caps || !cfunc)
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{
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return -RIG_EINVAL;
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}
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for (cfp = amp->caps->extlevels; cfp && cfp->name; cfp++)
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{
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2019-12-08 22:36:45 +00:00
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int ret = (*cfunc)(amp, cfp, data);
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2019-06-12 20:52:35 +00:00
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if (ret == 0)
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{
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return RIG_OK;
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}
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if (ret < 0)
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{
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return ret;
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}
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}
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return RIG_OK;
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}
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/**
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* \param amp The amp handle
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* \param cfunc callback function of each extparm
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* \param data cookie to be passed to \a cfunc callback
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* \brief Executes cfunc on all the elements stored in the extparms table
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*
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* The callback \a cfunc is called until it returns a value which is not
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* strictly positive. A zero value means a normal end of iteration, and a
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* negative value an abnormal end, which will be the return value of
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* amp_ext_parm_foreach.
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*/
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int HAMLIB_API amp_ext_parm_foreach(AMP *amp,
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int (*cfunc)(AMP *,
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2019-11-30 16:19:08 +00:00
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const struct confparams *,
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amp_ptr_t),
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2019-06-12 20:52:35 +00:00
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amp_ptr_t data)
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{
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const struct confparams *cfp;
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rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
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if (!amp || !amp->caps || !cfunc)
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{
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return -RIG_EINVAL;
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}
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for (cfp = amp->caps->extparms; cfp && cfp->name; cfp++)
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{
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2019-12-08 22:36:45 +00:00
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int ret = (*cfunc)(amp, cfp, data);
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2019-06-12 20:52:35 +00:00
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if (ret == 0)
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{
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return RIG_OK;
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}
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if (ret < 0)
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{
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return ret;
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}
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}
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return RIG_OK;
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}
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/**
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* \param amp
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* \param name
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* \brief lookup ext token by its name, return pointer to confparams struct.
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*
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* Lookup extlevels table first, then fall back to extparms.
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*
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* Returns NULL if nothing found
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*
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* TODO: should use Lex to speed it up, strcmp hurts!
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*/
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const struct confparams *HAMLIB_API amp_ext_lookup(AMP *amp, const char *name)
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{
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const struct confparams *cfp;
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rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
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if (!amp || !amp->caps)
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{
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return NULL;
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}
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for (cfp = amp->caps->extlevels; cfp && cfp->name; cfp++)
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{
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if (!strcmp(cfp->name, name))
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{
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return cfp;
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}
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}
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for (cfp = amp->caps->extparms; cfp && cfp->name; cfp++)
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{
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if (!strcmp(cfp->name, name))
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{
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return cfp;
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}
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}
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return NULL;
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}
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/**
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* \param amp
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* \param token
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* \brief lookup ext token, return pointer to confparams struct.
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*
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* lookup extlevels table first, then fall back to extparms.
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*
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* Returns NULL if nothing found
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*/
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2019-11-30 16:19:08 +00:00
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const struct confparams *HAMLIB_API amp_ext_lookup_tok(AMP *amp, token_t token)
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2019-06-12 20:52:35 +00:00
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{
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const struct confparams *cfp;
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rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
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if (!amp || !amp->caps)
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{
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return NULL;
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}
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for (cfp = amp->caps->extlevels; cfp && cfp->token; cfp++)
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{
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if (cfp->token == token)
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{
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return cfp;
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}
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}
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for (cfp = amp->caps->extparms; cfp && cfp->token; cfp++)
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{
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if (cfp->token == token)
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{
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return cfp;
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}
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}
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return NULL;
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}
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/**
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* \param amp
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* \param name
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* \brief Simple lookup returning token id assicated with name
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*/
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token_t HAMLIB_API amp_ext_token_lookup(AMP *amp, const char *name)
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{
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const struct confparams *cfp;
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rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
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cfp = amp_ext_lookup(amp, name);
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if (!cfp)
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{
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return RIG_CONF_END;
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}
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return cfp->token;
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}
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/** @} */
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