2 * This file is part of the libsigrok project.
4 * Copyright (C) 2018 Gerhard Sittig <gerhard.sittig@gmx.net>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #ifndef LIBSIGROK_HARDWARE_SCPI_DMM_PROTOCOL_H
21 #define LIBSIGROK_HARDWARE_SCPI_DMM_PROTOCOL_H
27 #include <libsigrok/libsigrok.h>
28 #include "libsigrok-internal.h"
31 #define LOG_PREFIX "scpi-dmm"
33 #define SCPI_DMM_MAX_CHANNELS 1
35 enum scpi_dmm_cmdcode {
48 enum sr_mqflag mqflag;
49 const char *scpi_func_setup;
50 const char *scpi_func_query;
51 int default_precision;
53 #define NO_DFLT_PREC -99
55 struct scpi_dmm_model {
60 const struct scpi_command *cmdset;
61 const struct mqopt_item *mqopts;
63 int (*get_measurement)(const struct sr_dev_inst *sdi, size_t ch);
64 const uint32_t *devopts;
66 unsigned int read_timeout_us; /* If zero, use default from src/scpi/scpi.c. */
67 float infinity_limit; /* If zero, use default from protocol.c */
72 const struct scpi_command *cmdset;
73 const struct scpi_dmm_model *model;
74 struct sr_sw_limits limits;
77 enum sr_mqflag curr_mqflag;
79 struct scpi_dmm_acq_info {
82 struct sr_datafeed_packet packet;
83 struct sr_datafeed_analog analog[SCPI_DMM_MAX_CHANNELS];
84 struct sr_analog_encoding encoding[SCPI_DMM_MAX_CHANNELS];
85 struct sr_analog_meaning meaning[SCPI_DMM_MAX_CHANNELS];
86 struct sr_analog_spec spec[SCPI_DMM_MAX_CHANNELS];
91 SR_PRIV void scpi_dmm_cmd_delay(struct sr_scpi_dev_inst *scpi);
92 SR_PRIV const struct mqopt_item *scpi_dmm_lookup_mq_number(
93 const struct sr_dev_inst *sdi, enum sr_mq mq, enum sr_mqflag flag);
94 SR_PRIV const struct mqopt_item *scpi_dmm_lookup_mq_text(
95 const struct sr_dev_inst *sdi, const char *text);
96 SR_PRIV int scpi_dmm_get_mq(const struct sr_dev_inst *sdi,
97 enum sr_mq *mq, enum sr_mqflag *flag, char **rsp,
98 const struct mqopt_item **mqitem);
99 SR_PRIV int scpi_dmm_set_mq(const struct sr_dev_inst *sdi,
100 enum sr_mq mq, enum sr_mqflag flag);
101 SR_PRIV int scpi_dmm_get_meas_agilent(const struct sr_dev_inst *sdi, size_t ch);
102 SR_PRIV int scpi_dmm_get_meas_gwinstek(const struct sr_dev_inst *sdi, size_t ch);
103 SR_PRIV int scpi_dmm_receive_data(int fd, int revents, void *cb_data);