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session: allocate correct amount of memory in sr_packet_copy
[libsigrok.git] / src / hardware / fluke-dmm / fluke-dmm.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_FLUKE_DMM_FLUKE_DMM_H
21#define LIBSIGROK_HARDWARE_FLUKE_DMM_FLUKE_DMM_H
22
23#define LOG_PREFIX "fluke-dmm"
24
25#define FLUKEDMM_BUFSIZE 256
26
27/* Always USB-serial, 1ms is plenty. */
28#define SERIAL_WRITE_TIMEOUT_MS 1
29
30/* Supported models */
31enum {
32 FLUKE_187 = 1,
33 FLUKE_189,
34 FLUKE_287,
35 FLUKE_190,
36};
37
38/* Supported device profiles */
39struct flukedmm_profile {
40 int model;
41 const char *modelname;
42 /* How often to poll, in ms. */
43 int poll_period;
44 /* If no response received, how long to wait before retrying. */
45 int timeout;
46};
47
48/* Private, per-device-instance driver context. */
49struct dev_context {
50 const struct flukedmm_profile *profile;
51 uint64_t limit_samples;
52 uint64_t limit_msec;
53
54 /* Opaque pointer passed in by the frontend. */
55 void *cb_data;
56
57 /* Runtime. */
58 uint64_t num_samples;
59 char buf[FLUKEDMM_BUFSIZE];
60 int buflen;
61 int64_t cmd_sent_at;
62 int expect_response;
63 int meas_type;
64 int is_relative;
65 int mq;
66 int unit;
67 int mqflags;
68};
69
70SR_PRIV int fluke_receive_data(int fd, int revents, void *cb_data);
71
72#endif