98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2016 Alexandru Gagniuc <mr.nuke.me@gmail.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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#ifndef LIBSIGROK_HARDWARE_HP_3457A_PROTOCOL_H
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#define LIBSIGROK_HARDWARE_HP_3457A_PROTOCOL_H
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#include <stdint.h>
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#include "libsigrok-internal.h"
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#define LOG_PREFIX "hp-3457a"
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/* Information about the rear card option currently installed. */
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enum card_type {
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CARD_UNKNOWN,
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REAR_TERMINALS,
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HP_44491A,
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HP_44492A,
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};
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struct rear_card_info {
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unsigned int card_id;
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enum card_type type;
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const char *name;
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const char *cg_name;
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unsigned int num_channels;
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};
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/* Possible states in an acquisition. */
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enum acquisition_state {
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ACQ_TRIGGERED_MEASUREMENT,
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ACQ_REQUESTED_HIRES,
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ACQ_REQUESTED_RANGE,
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ACQ_GOT_MEASUREMENT,
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ACQ_REQUESTED_CHANNEL_SYNC,
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ACQ_GOT_CHANNEL_SYNC,
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};
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/* Channel connector (front terminals, or rear card. */
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enum channel_conn {
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CONN_FRONT,
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CONN_REAR,
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};
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struct dev_context {
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/* Information about rear card option, or NULL if unknown */
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const struct rear_card_info *rear_card;
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enum sr_mq measurement_mq;
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enum sr_mqflag measurement_mq_flags;
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enum sr_unit measurement_unit;
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uint64_t limit_samples;
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float nplc;
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GSList *active_channels;
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unsigned int num_active_channels;
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struct sr_channel *current_channel;
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enum acquisition_state acq_state;
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enum channel_conn input_loc;
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uint64_t num_samples;
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double base_measurement;
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double hires_register;
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double measurement_range;
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double last_channel_sync;
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};
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struct channel_context {
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enum channel_conn location;
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int index;
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};
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SR_PRIV const struct rear_card_info *hp_3457a_probe_rear_card(struct sr_scpi_dev_inst *scpi);
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SR_PRIV int hp_3457a_receive_data(int fd, int revents, void *cb_data);
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SR_PRIV int hp_3457a_set_mq(const struct sr_dev_inst *sdi, enum sr_mq mq,
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enum sr_mqflag mq_flags);
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SR_PRIV int hp_3457a_set_nplc(const struct sr_dev_inst *sdi, float nplc);
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SR_PRIV int hp_3457a_select_input(const struct sr_dev_inst *sdi,
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enum channel_conn loc);
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SR_PRIV int hp_3457a_send_scan_list(const struct sr_dev_inst *sdi,
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unsigned int *channels, size_t len);
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#endif
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