97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
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/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2014 Bert Vermeulen <bert@biot.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "libsigrok.h"
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#include "libsigrok-internal.h"
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/* * @cond PRIVATE */
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#define LOG_PREFIX "trigger"
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/* * @endcond */
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SR_API struct sr_trigger *sr_trigger_new(char *name)
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{
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struct sr_trigger *trig;
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trig = g_malloc0(sizeof(struct sr_trigger));
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if (name)
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trig->name = g_strdup(name);
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return trig;
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}
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SR_API void sr_trigger_free(struct sr_trigger *trig)
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{
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struct sr_trigger_stage *stage;
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GSList *l;
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for (l = trig->stages; l; l = l->next) {
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stage = l->data;
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g_slist_free_full(stage->matches, g_free);
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}
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g_slist_free_full(trig->stages, (GDestroyNotify)g_slist_free);
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g_free(trig->name);
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g_free(trig);
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}
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SR_API struct sr_trigger_stage *sr_trigger_stage_new(struct sr_trigger *trig)
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{
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struct sr_trigger_stage *stage;
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stage = g_malloc0(sizeof(struct sr_trigger_stage));
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stage->stage = g_slist_length(trig->stages);
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trig->stages = g_slist_append(trig->stages, stage);
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return stage;
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}
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SR_API int sr_trigger_match_add(struct sr_trigger_stage *stage,
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struct sr_channel *ch, int trigger_match, float value)
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{
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struct sr_trigger_match *match;
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if (ch->type == SR_CHANNEL_LOGIC) {
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if (trigger_match != SR_TRIGGER_ZERO &&
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trigger_match != SR_TRIGGER_ONE &&
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trigger_match != SR_TRIGGER_RISING &&
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trigger_match != SR_TRIGGER_FALLING &&
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trigger_match != SR_TRIGGER_EDGE) {
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sr_err("Invalid trigger match for a logic channel.");
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return SR_ERR_ARG;
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}
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} else if (ch->type == SR_CHANNEL_ANALOG) {
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if (trigger_match != SR_TRIGGER_FALLING &&
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trigger_match != SR_TRIGGER_OVER &&
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trigger_match != SR_TRIGGER_UNDER) {
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sr_err("Invalid trigger match for an analog channel.");
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return SR_ERR_ARG;
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}
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}
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match = g_malloc0(sizeof(struct sr_trigger_match));
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match->channel = ch;
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match->match = trigger_match;
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match->value = value;
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stage->matches = g_slist_append(stage->matches, match);
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return SR_OK;
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}
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