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agilent-dmm: add support for reading secondary display and temperature
[libsigrok.git] / src / hardware / agilent-dmm / protocol.h
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1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
5 *
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.
10 *
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.
15 *
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/>.
18 */
19
20#ifndef LIBSIGROK_HARDWARE_AGILENT_DMM_PROTOCOL_H
21#define LIBSIGROK_HARDWARE_AGILENT_DMM_PROTOCOL_H
22
23#define LOG_PREFIX "agilent-dmm"
24
25#define MAX_CHANNELS 3
26#define AGDMM_BUFSIZE 256
27
28/* Always USB-serial, 1ms is plenty. */
29#define SERIAL_WRITE_TIMEOUT_MS 1
30
31/* Supported models */
32enum {
33 AGILENT_U1231 = 1,
34 AGILENT_U1232,
35 AGILENT_U1233,
36
37 AGILENT_U1241,
38 AGILENT_U1242,
39
40 AGILENT_U1251,
41 AGILENT_U1252,
42 AGILENT_U1253,
43
44 KEYSIGHT_U1281,
45 KEYSIGHT_U1282,
46};
47
48/* Supported device profiles */
49struct agdmm_profile {
50 int model;
51 const char *modelname;
52 int nb_channels;
53 const struct agdmm_job *jobs;
54 const struct agdmm_recv *recvs;
55};
56
57/* Private, per-device-instance driver context. */
58struct dev_context {
59 const struct agdmm_profile *profile;
60 struct sr_sw_limits limits;
61
62 /* Runtime. */
63 int64_t jobqueue[8];
64 unsigned char buf[AGDMM_BUFSIZE];
65 int buflen;
66 struct sr_channel *cur_channel;
67 struct sr_channel *cur_conf;
68 int cur_mq[MAX_CHANNELS];
69 int cur_unit[MAX_CHANNELS];
70 int cur_mqflags[MAX_CHANNELS];
71 int cur_digits[MAX_CHANNELS];
72 int cur_encoding[MAX_CHANNELS];
73 int cur_exponent[MAX_CHANNELS];
74 int mode_tempaux;
75 int mode_continuity;
76 int mode_squarewave;
77};
78
79struct agdmm_job {
80 int interval;
81 int (*send) (const struct sr_dev_inst *sdi);
82};
83
84struct agdmm_recv {
85 const char *recv_regex;
86 int (*recv) (const struct sr_dev_inst *sdi, GMatchInfo *match);
87};
88
89SR_PRIV int agdmm_receive_data(int fd, int revents, void *cb_data);
90
91#endif