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7c198f96 ML |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2015 Martin Lederhilger <martin.lederhilger@gmx.at> | |
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_GWINSTEK_GDS_800_PROTOCOL_H | |
21 | #define LIBSIGROK_HARDWARE_GWINSTEK_GDS_800_PROTOCOL_H | |
22 | ||
23 | #include <stdint.h> | |
24 | #include <glib.h> | |
b11afbb1 | 25 | #include <libsigrok/libsigrok.h> |
7c198f96 | 26 | #include "libsigrok-internal.h" |
b11afbb1 | 27 | #include "scpi.h" |
7c198f96 ML |
28 | |
29 | #define LOG_PREFIX "gwinstek-gds-800" | |
30 | ||
b11afbb1 ML |
31 | #define MAX_SAMPLES 125000 |
32 | #define MAX_RCV_BUFFER_SIZE (MAX_SAMPLES * 2) | |
33 | ||
34 | enum gds_state | |
35 | { | |
36 | START_ACQUISITION, | |
37 | START_TRANSFER_OF_CHANNEL_DATA, | |
38 | WAIT_FOR_TRANSFER_OF_BEGIN_TRANSMISSION_COMPLETE, | |
39 | WAIT_FOR_TRANSFER_OF_DATA_SIZE_DIGIT_COMPLETE, | |
40 | WAIT_FOR_TRANSFER_OF_DATA_SIZE_COMPLETE, | |
41 | WAIT_FOR_TRANSFER_OF_SAMPLE_RATE_COMPLETE, | |
42 | WAIT_FOR_TRANSFER_OF_CHANNEL_INDICATOR_COMPLETE, | |
43 | WAIT_FOR_TRANSFER_OF_RESERVED_DATA_COMPLETE, | |
44 | WAIT_FOR_TRANSFER_OF_CHANNEL_DATA_COMPLETE, | |
45 | }; | |
46 | ||
7c198f96 ML |
47 | /** Private, per-device-instance driver context. */ |
48 | struct dev_context { | |
b11afbb1 ML |
49 | enum gds_state state; |
50 | uint64_t cur_acq_frame; | |
51 | uint64_t frame_limit; | |
52 | int cur_acq_channel; | |
53 | int cur_rcv_buffer_position; | |
54 | char rcv_buffer[MAX_RCV_BUFFER_SIZE]; | |
55 | int data_size_digits; | |
56 | int data_size; | |
57 | float sample_rate; | |
58 | gboolean df_started; | |
7c198f96 ML |
59 | }; |
60 | ||
61 | SR_PRIV int gwinstek_gds_800_receive_data(int fd, int revents, void *cb_data); | |
62 | ||
63 | #endif |