102 lines
3.0 KiB
C
102 lines
3.0 KiB
C
/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2018 Gerhard Sittig <gerhard.sittig@gmx.net>
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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_SCPI_DMM_PROTOCOL_H
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#define LIBSIGROK_HARDWARE_SCPI_DMM_PROTOCOL_H
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#include <config.h>
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#include <glib.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <libsigrok/libsigrok.h>
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#include "libsigrok-internal.h"
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#include "scpi.h"
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#define LOG_PREFIX "scpi-dmm"
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#define SCPI_DMM_MAX_CHANNELS 1
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enum scpi_dmm_cmdcode {
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DMM_CMD_SETUP_REMOTE,
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DMM_CMD_SETUP_FUNC,
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DMM_CMD_QUERY_FUNC,
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DMM_CMD_START_ACQ,
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DMM_CMD_STOP_ACQ,
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DMM_CMD_QUERY_VALUE,
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DMM_CMD_QUERY_PREC,
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};
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struct mqopt_item {
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enum sr_mq mq;
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enum sr_mqflag mqflag;
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const char *scpi_func_setup;
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const char *scpi_func_query;
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int default_precision;
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};
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#define NO_DFLT_PREC -99
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struct scpi_dmm_model {
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const char *vendor;
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const char *model;
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size_t num_channels;
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ssize_t digits;
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const struct scpi_command *cmdset;
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const struct mqopt_item *mqopts;
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size_t mqopt_size;
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int (*get_measurement)(const struct sr_dev_inst *sdi, size_t ch);
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const uint32_t *devopts;
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size_t devopts_size;
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unsigned int read_timeout_us; /* If zero, use default from src/scpi/scpi.c. */
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};
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struct dev_context {
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size_t num_channels;
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const struct scpi_command *cmdset;
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const struct scpi_dmm_model *model;
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struct sr_sw_limits limits;
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struct {
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enum sr_mq curr_mq;
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enum sr_mqflag curr_mqflag;
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} start_acq_mq;
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struct scpi_dmm_acq_info {
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float f_value;
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double d_value;
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struct sr_datafeed_packet packet;
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struct sr_datafeed_analog analog[SCPI_DMM_MAX_CHANNELS];
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struct sr_analog_encoding encoding[SCPI_DMM_MAX_CHANNELS];
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struct sr_analog_meaning meaning[SCPI_DMM_MAX_CHANNELS];
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struct sr_analog_spec spec[SCPI_DMM_MAX_CHANNELS];
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} run_acq_info;
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};
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SR_PRIV void scpi_dmm_cmd_delay(struct sr_scpi_dev_inst *scpi);
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SR_PRIV const struct mqopt_item *scpi_dmm_lookup_mq_number(
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const struct sr_dev_inst *sdi, enum sr_mq mq, enum sr_mqflag flag);
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SR_PRIV const struct mqopt_item *scpi_dmm_lookup_mq_text(
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const struct sr_dev_inst *sdi, const char *text);
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SR_PRIV int scpi_dmm_get_mq(const struct sr_dev_inst *sdi,
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enum sr_mq *mq, enum sr_mqflag *flag, char **rsp,
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const struct mqopt_item **mqitem);
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SR_PRIV int scpi_dmm_set_mq(const struct sr_dev_inst *sdi,
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enum sr_mq mq, enum sr_mqflag flag);
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SR_PRIV int scpi_dmm_get_meas_agilent(const struct sr_dev_inst *sdi, size_t ch);
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SR_PRIV int scpi_dmm_receive_data(int fd, int revents, void *cb_data);
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#endif
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