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cae33a58 AS |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2020 Andreas Sandberg <andreas@sandberg.pp.se> | |
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_RDTECH_TC_PROTOCOL_H | |
21 | #define LIBSIGROK_HARDWARE_RDTECH_TC_PROTOCOL_H | |
22 | ||
23 | #include <libsigrok/libsigrok.h> | |
24 | #include "libsigrok-internal.h" | |
25 | ||
26 | #define LOG_PREFIX "rdtech-tc" | |
27 | ||
37b68953 GS |
28 | /* |
29 | * Keep request and response buffers of sufficient size. The maximum | |
30 | * request text currently involved is "bgetva\r\n" which translates | |
31 | * to 9 bytes. The poll response (a measurement, the largest amount | |
32 | * of data that is currently received) is 192 bytes in length. Add | |
33 | * some slack for alignment, and for in-flight messages or adjacent | |
34 | * data during synchronization to the data stream. | |
35 | */ | |
36 | #define RDTECH_TC_MAXREQLEN 12 | |
37 | #define RDTECH_TC_RSPBUFSIZE 256 | |
cae33a58 AS |
38 | |
39 | struct rdtech_dev_info { | |
40 | char *model_name; | |
41 | char *fw_ver; | |
42 | uint32_t serial_num; | |
43 | }; | |
44 | ||
b3df7668 GS |
45 | struct rdtech_tc_channel_desc { |
46 | const char *name; | |
47 | struct binary_value_spec spec; | |
48 | struct sr_rational scale; | |
49 | int digits; | |
50 | enum sr_mq mq; | |
51 | enum sr_unit unit; | |
52 | }; | |
53 | ||
cae33a58 | 54 | struct dev_context { |
37b68953 GS |
55 | gboolean is_bluetooth; |
56 | char req_text[RDTECH_TC_MAXREQLEN]; | |
cae33a58 | 57 | struct rdtech_dev_info dev_info; |
b3df7668 GS |
58 | const struct rdtech_tc_channel_desc *channels; |
59 | size_t channel_count; | |
60 | struct feed_queue_analog **feeds; | |
cae33a58 | 61 | struct sr_sw_limits limits; |
37b68953 | 62 | uint8_t buf[RDTECH_TC_RSPBUFSIZE]; |
e2bcf2e3 | 63 | size_t rdlen; |
cae33a58 | 64 | int64_t cmd_sent_at; |
66d58fcb | 65 | size_t rx_after_tx; |
cae33a58 AS |
66 | }; |
67 | ||
5955b58c | 68 | SR_PRIV int rdtech_tc_probe(struct sr_serial_dev_inst *serial, struct dev_context *devc); |
cae33a58 | 69 | SR_PRIV int rdtech_tc_receive_data(int fd, int revents, void *cb_data); |
a82490b6 | 70 | SR_PRIV int rdtech_tc_poll(const struct sr_dev_inst *sdi, gboolean force); |
cae33a58 AS |
71 | |
72 | #endif |