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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2014 Kumar Abhishek <abhishek@theembeddedkitchen.net> | |
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_BEAGLELOGIC_PROTOCOL_H | |
21 | #define LIBSIGROK_HARDWARE_BEAGLELOGIC_PROTOCOL_H | |
22 | ||
23 | #include <stdint.h> | |
24 | #include <glib.h> | |
25 | #include "libsigrok.h" | |
26 | #include "libsigrok-internal.h" | |
27 | ||
28 | #define LOG_PREFIX "beaglelogic" | |
29 | ||
30 | /* Maximum possible input channels */ | |
31 | #define NUM_CHANNELS 14 | |
32 | ||
33 | #define SAMPLEUNIT_TO_BYTES(x) ((x) == 1 ? 1 : 2) | |
34 | ||
35 | /** Private, per-device-instance driver context. */ | |
36 | struct dev_context { | |
37 | /* Model-specific information */ | |
38 | int max_channels; | |
39 | uint32_t fw_ver; | |
40 | ||
41 | /* Acquisition settings: see beaglelogic.h */ | |
42 | uint64_t cur_samplerate; | |
43 | uint64_t limit_samples; | |
44 | uint32_t sampleunit; | |
45 | uint32_t triggerflags; | |
46 | uint64_t capture_ratio; | |
47 | ||
48 | /* Buffers: size of each buffer block and the total buffer area */ | |
49 | uint32_t bufunitsize; | |
50 | uint32_t buffersize; | |
51 | ||
52 | /* Operational state */ | |
53 | int fd; | |
54 | GPollFD pollfd; | |
55 | int last_error; | |
56 | ||
57 | uint64_t bytes_read; | |
58 | uint64_t sent_samples; | |
59 | uint32_t offset; | |
60 | uint8_t *sample_buf; /* mmap'd kernel buffer here */ | |
61 | ||
62 | void *cb_data; | |
63 | ||
64 | /* Trigger logic */ | |
65 | struct soft_trigger_logic *stl; | |
66 | gboolean trigger_fired; | |
67 | }; | |
68 | ||
69 | SR_PRIV int beaglelogic_receive_data(int fd, int revents, void *cb_data); | |
70 | ||
71 | #endif |