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Demo: Implement multi-frame development feature
[libsigrok.git] / src / hardware / demo / protocol.c
CommitLineData
ba508e22
UH		 1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
5 * Copyright (C) 2011 Olivier Fauchon <olivier@aixmarseille.com>
6 * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
7 * Copyright (C) 2015 Bartosz Golaszewski <bgolaszewski@baylibre.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
2ea1fdf1 20 * along with this program; if not, see <http://www.gnu.org/licenses/>.
ba508e22
UH		 21 */
22
23#include <config.h>
24#include <stdlib.h>
25#include <string.h>
26#include <math.h>
27#include <libsigrok/libsigrok.h>
28#include "libsigrok-internal.h"
29#include "protocol.h"
30
31#define ANALOG_SAMPLES_PER_PERIOD 20
32
33static const uint8_t pattern_sigrok[] = {
34 0x4c, 0x92, 0x92, 0x92, 0x64, 0x00, 0x00, 0x00,
35 0x82, 0xfe, 0xfe, 0x82, 0x00, 0x00, 0x00, 0x00,
36 0x7c, 0x82, 0x82, 0x92, 0x74, 0x00, 0x00, 0x00,
37 0xfe, 0x12, 0x12, 0x32, 0xcc, 0x00, 0x00, 0x00,
38 0x7c, 0x82, 0x82, 0x82, 0x7c, 0x00, 0x00, 0x00,
39 0xfe, 0x10, 0x28, 0x44, 0x82, 0x00, 0x00, 0x00,
40 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
41 0xbe, 0xbe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
42};
43
81d53a29
GS		 44static const uint8_t pattern_squid[128][128 / 8] = {
45 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
46 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
47 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
48 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
49 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
50 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
51 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
52 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
53 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
54 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
55 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
56 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0xe0, 0x00, },
57 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xe1, 0x01, },
58 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xe1, 0x01, },
59 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xe3, 0x03, },
60 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xe3, 0x03, },
61 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xc3, 0x03, },
62 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xcf, 0xc7, 0x03, },
63 { 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0xc7, 0x03, },
64 { 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x87, 0x03, },
65 { 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0xc7, 0x03, },
66 { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0xcf, 0x03, },
67 { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xcf, 0x03, },
68 { 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0xff, 0x03, },
69 { 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0xff, 0x03, },
70 { 0x00, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0xfe, 0x01, },
71 { 0x00, 0x00, 0x00, 0x80, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0xfe, 0x01, },
72 { 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0xfc, 0x00, },
73 { 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
74 { 0x00, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
75 { 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
76 { 0x00, 0xc0, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
77 { 0x00, 0x80, 0x01, 0x00, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0xfe, 0xff, 0x03, },
78 { 0x00, 0x00, 0x07, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xfe, 0xff, 0x03, },
79 { 0x00, 0x00, 0x1c, 0x00, 0xe0, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xfe, 0xff, 0x03, },
80 { 0x00, 0x00, 0x78, 0x00, 0xc0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xfe, 0xff, 0x03, },
81 { 0x00, 0x00, 0xe0, 0x00, 0x80, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0xfe, 0xff, 0x03, },
82 { 0x00, 0x00, 0xc0, 0x03, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
83 { 0x00, 0x00, 0x00, 0x07, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
84 { 0x00, 0x00, 0x00, 0x1c, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
85 { 0x00, 0x00, 0x00, 0xf8, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x03, 0x00, },
86 { 0x00, 0x00, 0x00, 0xf0, 0x01, 0x38, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x01, 0x00, 0xf0, 0x1f, 0x1c, },
87 { 0x00, 0x00, 0x00, 0xe0, 0x07, 0x70, 0x00, 0x00, 0x00, 0xfe, 0xff, 0x0f, 0x00, 0xfc, 0x3f, 0x3c, },
88 { 0x80, 0x03, 0x00, 0xc0, 0x0f, 0xe0, 0x00, 0x00, 0x80, 0xff, 0xff, 0x3f, 0x00, 0xfc, 0x7f, 0x7c, },
89 { 0x00, 0x1e, 0x00, 0x00, 0x1f, 0xc0, 0x01, 0x00, 0xc0, 0xff, 0xff, 0x7f, 0x00, 0xfe, 0xff, 0x7c, },
90 { 0x00, 0xf0, 0x01, 0x00, 0x7c, 0x80, 0x03, 0x00, 0xc0, 0xff, 0xff, 0xff, 0x00, 0xfe, 0xff, 0x7c, },
91 { 0x00, 0xc0, 0x0f, 0x00, 0xf0, 0x00, 0x07, 0x00, 0xc0, 0xff, 0xff, 0xff, 0x00, 0x3f, 0xf8, 0x78, },
92 { 0x00, 0x00, 0x3e, 0x00, 0xc0, 0x03, 0x0e, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xf0, 0xf0, },
93 { 0x00, 0x00, 0xf0, 0x07, 0x80, 0x07, 0x3c, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xf0, 0xf0, },
94 { 0x00, 0x00, 0x80, 0x3f, 0x00, 0x1e, 0x78, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xe0, 0xf0, },
95 { 0x00, 0x00, 0x00, 0xff, 0x00, 0x7c, 0xe0, 0x01, 0xe0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xe0, 0xf0, },
96 { 0x00, 0x00, 0x00, 0xfc, 0x03, 0xf0, 0xc1, 0x07, 0xf0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xf0, 0xf0, },
97 { 0x00, 0x00, 0x00, 0xe0, 0x1f, 0xc0, 0x03, 0x1f, 0xe0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xf0, 0x78, },
98 { 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x1f, 0xfc, 0xe0, 0xff, 0xff, 0xff, 0x01, 0xff, 0xff, 0x7f, },
99 { 0xf8, 0x03, 0x00, 0x00, 0xf0, 0x07, 0xfe, 0xf0, 0xff, 0xff, 0xff, 0xff, 0x01, 0xff, 0xff, 0x7f, },
100 { 0x80, 0xff, 0x01, 0x00, 0x80, 0x3f, 0xf0, 0x8f, 0xff, 0xff, 0xff, 0xff, 0x00, 0xfe, 0xff, 0x3f, },
101 { 0x00, 0xf0, 0xff, 0x07, 0x00, 0xfc, 0x83, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xfe, 0xff, 0x3f, },
102 { 0x00, 0x00, 0xfc, 0x7f, 0x00, 0xe0, 0x7f, 0xfc, 0xff, 0xff, 0xff, 0xff, 0x00, 0xfe, 0xff, 0x1f, },
103 { 0x00, 0x00, 0xc0, 0xff, 0x1f, 0x00, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xfc, 0xff, 0x03, },
104 { 0x00, 0x00, 0x00, 0xf8, 0xff, 0x07, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, },
105 { 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x0f, 0xe0, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, },
106 { 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, },
107 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, },
108 { 0x00, 0x00, 0xf8, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0xff, 0xff, 0x03, },
109 { 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0xff, 0xff, 0x03, },
110 { 0x00, 0x10, 0xf8, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0x03, },
111 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0x03, },
112 { 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0x03, },
113 { 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x0f, 0xe0, 0xff, 0xff, 0xff, 0xff, 0x00, 0x7c, 0x00, 0x00, },
114 { 0x00, 0x00, 0x00, 0xf8, 0xff, 0x07, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x3c, 0x00, 0x00, },
115 { 0x00, 0x00, 0xc0, 0xff, 0x1f, 0x00, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x1e, 0x00, 0x00, },
116 { 0x00, 0x00, 0xf8, 0x7f, 0x00, 0xe0, 0x7f, 0xfc, 0xff, 0xff, 0xff, 0xff, 0x00, 0x1e, 0x00, 0x00, },
117 { 0x00, 0xf0, 0xff, 0x07, 0x00, 0xfc, 0x83, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0x0f, 0x00, 0x00, },
118 { 0x80, 0xff, 0x01, 0x00, 0x80, 0x3f, 0xf0, 0x8f, 0xff, 0xff, 0xff, 0xff, 0x01, 0x0f, 0x00, 0x00, },
119 { 0xf8, 0x03, 0x00, 0x00, 0xf0, 0x07, 0xfe, 0xf0, 0xff, 0xff, 0xff, 0xff, 0x00, 0x0f, 0x00, 0x00, },
120 { 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x1f, 0xfc, 0xe0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0x00, 0x00, },
121 { 0x00, 0x00, 0x00, 0xe0, 0x1f, 0xc0, 0x07, 0x1f, 0xf0, 0xff, 0xff, 0xff, 0x00, 0x06, 0x00, 0x00, },
122 { 0x00, 0x00, 0x00, 0xfc, 0x03, 0xf0, 0xc1, 0x07, 0xf0, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, },
123 { 0x00, 0x00, 0x00, 0xff, 0x00, 0x7c, 0xe0, 0x01, 0xf0, 0xff, 0xff, 0xff, 0x01, 0xe0, 0x1f, 0x00, },
124 { 0x00, 0x00, 0x80, 0x3f, 0x00, 0x1e, 0x78, 0x00, 0xf0, 0xff, 0xff, 0xff, 0x01, 0xf0, 0x7f, 0x00, },
125 { 0x00, 0x00, 0xf0, 0x0f, 0x80, 0x07, 0x3c, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x01, 0xfc, 0xff, 0x00, },
126 { 0x00, 0x00, 0x3e, 0x00, 0xc0, 0x03, 0x0e, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x01, 0xfc, 0xff, 0x01, },
127 { 0x00, 0xc0, 0x0f, 0x00, 0xf0, 0x00, 0x07, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x01, 0xfe, 0xff, 0x01, },
128 { 0x00, 0xf0, 0x01, 0x00, 0x7c, 0x80, 0x03, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0x03, },
129 { 0x00, 0x3e, 0x00, 0x00, 0x1f, 0xc0, 0x01, 0x00, 0x80, 0xff, 0xff, 0xff, 0x00, 0x1f, 0xe0, 0x03, },
130 { 0x80, 0x03, 0x00, 0xc0, 0x0f, 0xe0, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xc0, 0x03, },
131 { 0x00, 0x00, 0x00, 0xe0, 0x07, 0x70, 0x00, 0x00, 0x00, 0xfc, 0xff, 0xff, 0x00, 0x0f, 0xc0, 0x03, },
132 { 0x00, 0x00, 0x00, 0xf0, 0x01, 0x38, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x01, 0x00, 0x0f, 0x80, 0x03, },
133 { 0x00, 0x00, 0x00, 0xf8, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xc0, 0x03, },
134 { 0x00, 0x00, 0x00, 0x1c, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xc0, 0x03, },
135 { 0x00, 0x00, 0x00, 0x07, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0xe0, 0x03, },
136 { 0x00, 0x00, 0xc0, 0x03, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xf8, 0x03, },
137 { 0x00, 0x00, 0xe0, 0x00, 0x80, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0x01, },
138 { 0x00, 0x00, 0x78, 0x00, 0xc0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0x01, },
139 { 0x00, 0x00, 0x1c, 0x00, 0xe0, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0x00, },
140 { 0x00, 0x00, 0x06, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x7f, 0x00, },
141 { 0x00, 0x80, 0x03, 0x00, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x1f, 0x00, },
142 { 0x00, 0xc0, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
143 { 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
144 { 0x00, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
145 { 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0x01, },
146 { 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0x03, },
147 { 0x00, 0x00, 0x00, 0x80, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0x03, },
148 { 0x00, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0x03, },
149 { 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0x03, },
150 { 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0x03, },
151 { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x07, 0x00, },
152 { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x07, 0x00, },
153 { 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0x0f, 0x00, },
154 { 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x1f, 0x00, },
155 { 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x3f, 0x00, },
156 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0x00, },
157 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0x01, },
158 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xfc, 0x03, },
159 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xf8, 0x03, },
160 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0xf0, 0x03, },
161 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xc0, 0x03, },
162 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, },
163 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
164 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
165 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
166 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
167 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
168 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
169 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
170 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
171 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
172 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
173};
174
ba508e22
UH		 175SR_PRIV void demo_generate_analog_pattern(struct analog_gen *ag, uint64_t sample_rate)
176{
177 double t, frequency;
178 float value;
179 unsigned int num_samples, i;
180 int last_end;
181
182 sr_dbg("Generating %s pattern.", analog_pattern_str[ag->pattern]);
183
184 num_samples = ANALOG_BUFSIZE / sizeof(float);
185
186 switch (ag->pattern) {
187 case PATTERN_SQUARE:
188 value = ag->amplitude;
189 last_end = 0;
190 for (i = 0; i < num_samples; i++) {
191 if (i % 5 == 0)
192 value = -value;
193 if (i % 10 == 0)
194 last_end = i;
195 ag->pattern_data[i] = value;
196 }
197 ag->num_samples = last_end;
198 break;
199 case PATTERN_SINE:
200 frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD;
201
202 /* Make sure the number of samples we put out is an integer
203 * multiple of our period size */
204 /* FIXME we actually need only one period. A ringbuffer would be
205 * useful here. */
206 while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0)
207 num_samples--;
208
209 for (i = 0; i < num_samples; i++) {
210 t = (double) i / (double) sample_rate;
211 ag->pattern_data[i] = ag->amplitude *
212 sin(2 * G_PI * frequency * t);
213 }
214
215 ag->num_samples = num_samples;
216 break;
217 case PATTERN_TRIANGLE:
218 frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD;
219
220 while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0)
221 num_samples--;
222
223 for (i = 0; i < num_samples; i++) {
224 t = (double) i / (double) sample_rate;
225 ag->pattern_data[i] = (2 * ag->amplitude / G_PI) *
226 asin(sin(2 * G_PI * frequency * t));
227 }
228
229 ag->num_samples = num_samples;
230 break;
231 case PATTERN_SAWTOOTH:
232 frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD;
233
234 while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0)
235 num_samples--;
236
237 for (i = 0; i < num_samples; i++) {
238 t = (double) i / (double) sample_rate;
239 ag->pattern_data[i] = 2 * ag->amplitude *
240 ((t * frequency) - floor(0.5f + t * frequency));
241 }
242
243 ag->num_samples = num_samples;
244 break;
245 }
246}
247
248static void logic_generator(struct sr_dev_inst *sdi, uint64_t size)
249{
250 struct dev_context *devc;
251 uint64_t i, j;
252 uint8_t pat;
81d53a29
GS		 253 uint8_t *sample;
254 const uint8_t *image_col;
255 size_t col_count, col_height;
ba508e22
UH		 256
257 devc = sdi->priv;
258
259 switch (devc->logic_pattern) {
260 case PATTERN_SIGROK:
261 memset(devc->logic_data, 0x00, size);
262 for (i = 0; i < size; i += devc->logic_unitsize) {
263 for (j = 0; j < devc->logic_unitsize; j++) {
264 pat = pattern_sigrok[(devc->step + j) % sizeof(pattern_sigrok)] >> 1;
265 devc->logic_data[i + j] = ~pat;
266 }
267 devc->step++;
268 }
269 break;
270 case PATTERN_RANDOM:
271 for (i = 0; i < size; i++)
272 devc->logic_data[i] = (uint8_t)(rand() & 0xff);
273 break;
274 case PATTERN_INC:
275 for (i = 0; i < size; i++) {
8ebad343 276 for (j = 0; j < devc->logic_unitsize; j++)
ba508e22 277 devc->logic_data[i + j] = devc->step;
ba508e22
UH		 278 devc->step++;
279 }
280 break;
845060fa
SA		 281 case PATTERN_WALKING_ONE:
282 /* j contains the value of the highest bit */
283 j = 1 << (devc->num_logic_channels - 1);
284 for (i = 0; i < size; i++) {
285 devc->logic_data[i] = devc->step;
286 if (devc->step == 0)
287 devc->step = 1;
288 else
289 if (devc->step == j)
290 devc->step = 0;
291 else
292 devc->step <<= 1;
293 }
294 break;
295 case PATTERN_WALKING_ZERO:
296 /* Same as walking one, only with inverted output */
297 /* j contains the value of the highest bit */
298 j = 1 << (devc->num_logic_channels - 1);
299 for (i = 0; i < size; i++) {
300 devc->logic_data[i] = ~devc->step;
301 if (devc->step == 0)
302 devc->step = 1;
303 else
304 if (devc->step == j)
305 devc->step = 0;
306 else
307 devc->step <<= 1;
308 }
309 break;
ba508e22
UH		 310 case PATTERN_ALL_LOW:
311 case PATTERN_ALL_HIGH:
312 /* These were set when the pattern mode was selected. */
313 break;
81d53a29
GS		 314 case PATTERN_SQUID:
315 memset(devc->logic_data, 0x00, size);
316 col_count = ARRAY_SIZE(pattern_squid);
317 col_height = ARRAY_SIZE(pattern_squid[0]);
318 for (i = 0; i < size; i += devc->logic_unitsize) {
319 sample = &devc->logic_data[i];
320 image_col = pattern_squid[devc->step];
321 for (j = 0; j < devc->logic_unitsize; j++) {
322 pat = image_col[j % col_height];
323 sample[j] = pat;
324 }
325 devc->step++;
326 devc->step %= col_count;
327 }
328 break;
ba508e22
UH		 329 default:
330 sr_err("Unknown pattern: %d.", devc->logic_pattern);
331 break;
332 }
333}
334
4a465510
GS		 335/*
336 * Fixup a memory image of generated logic data before it gets sent to
337 * the session's datafeed. Mask out content from disabled channels.
338 *
339 * TODO: Need we apply a channel map, and enforce a dense representation
340 * of the enabled channels' data?
341 */
342static void logic_fixup_feed(struct dev_context *devc,
343 struct sr_datafeed_logic *logic)
344{
345 size_t fp_off;
346 uint8_t fp_mask;
347 size_t off, idx;
348 uint8_t *sample;
349
350 fp_off = devc->first_partial_logic_index;
351 fp_mask = devc->first_partial_logic_mask;
352 if (fp_off == logic->unitsize)
353 return;
354
355 for (off = 0; off < logic->length; off += logic->unitsize) {
356 sample = logic->data + off;
357 sample[fp_off] &= fp_mask;
358 for (idx = fp_off + 1; idx < logic->unitsize; idx++)
359 sample[idx] = 0x00;
360 }
361}
362
ba508e22
UH		 363static void send_analog_packet(struct analog_gen *ag,
364 struct sr_dev_inst *sdi, uint64_t *analog_sent,
365 uint64_t analog_pos, uint64_t analog_todo)
366{
367 struct sr_datafeed_packet packet;
368 struct dev_context *devc;
369 uint64_t sending_now, to_avg;
370 int ag_pattern_pos;
371 unsigned int i;
372
01f2adb0
GS		 373 if (!ag->ch || !ag->ch->enabled)
374 return;
375
ba508e22
UH		 376 devc = sdi->priv;
377 packet.type = SR_DF_ANALOG;
378 packet.payload = &ag->packet;
379
380 if (!devc->avg) {
381 ag_pattern_pos = analog_pos % ag->num_samples;
d1144645 382 sending_now = MIN(analog_todo, ag->num_samples - ag_pattern_pos);
ba508e22
UH		 383 ag->packet.data = ag->pattern_data + ag_pattern_pos;
384 ag->packet.num_samples = sending_now;
385 sr_session_send(sdi, &packet);
386
387 /* Whichever channel group gets there first. */
388 *analog_sent = MAX(*analog_sent, sending_now);
389 } else {
390 ag_pattern_pos = analog_pos % ag->num_samples;
d1144645 391 to_avg = MIN(analog_todo, ag->num_samples - ag_pattern_pos);
ba508e22
UH		 392
393 for (i = 0; i < to_avg; i++) {
394 ag->avg_val = (ag->avg_val +
395 *(ag->pattern_data +
396 ag_pattern_pos + i)) / 2;
397 ag->num_avgs++;
398 /* Time to send averaged data? */
399 if (devc->avg_samples > 0 &&
400 ag->num_avgs >= devc->avg_samples)
401 goto do_send;
402 }
403
404 if (devc->avg_samples == 0) {
405 /* We're averaging all the samples, so wait with
406 * sending until the very end.
407 */
408 *analog_sent = ag->num_avgs;
409 return;
410 }
411
412do_send:
413 ag->packet.data = &ag->avg_val;
414 ag->packet.num_samples = 1;
415
416 sr_session_send(sdi, &packet);
417 *analog_sent = ag->num_avgs;
418
419 ag->num_avgs = 0;
420 ag->avg_val = 0.0f;
421 }
422}
423
424/* Callback handling data */
425SR_PRIV int demo_prepare_data(int fd, int revents, void *cb_data)
426{
427 struct sr_dev_inst *sdi;
428 struct dev_context *devc;
429 struct sr_datafeed_packet packet;
430 struct sr_datafeed_logic logic;
431 struct analog_gen *ag;
432 GHashTableIter iter;
433 void *value;
434 uint64_t samples_todo, logic_done, analog_done, analog_sent, sending_now;
435 int64_t elapsed_us, limit_us, todo_us;
436
437 (void)fd;
438 (void)revents;
439
440 sdi = cb_data;
441 devc = sdi->priv;
442
443 /* Just in case. */
444 if (devc->cur_samplerate <= 0
445 || (devc->num_logic_channels <= 0
446 && devc->num_analog_channels <= 0)) {
d2f7c417 447 sr_dev_acquisition_stop(sdi);
ba508e22
UH		 448 return G_SOURCE_CONTINUE;
449 }
450
451 /* What time span should we send samples for? */
452 elapsed_us = g_get_monotonic_time() - devc->start_us;
453 limit_us = 1000 * devc->limit_msec;
454 if (limit_us > 0 && limit_us < elapsed_us)
455 todo_us = MAX(0, limit_us - devc->spent_us);
456 else
457 todo_us = MAX(0, elapsed_us - devc->spent_us);
458
459 /* How many samples are outstanding since the last round? */
460 samples_todo = (todo_us * devc->cur_samplerate + G_USEC_PER_SEC - 1)
461 / G_USEC_PER_SEC;
f55bea76
SA		 462
463 if (SAMPLES_PER_FRAME > 0)
464 samples_todo = SAMPLES_PER_FRAME;
465
ba508e22
UH		 466 if (devc->limit_samples > 0) {
467 if (devc->limit_samples < devc->sent_samples)
468 samples_todo = 0;
469 else if (devc->limit_samples - devc->sent_samples < samples_todo)
470 samples_todo = devc->limit_samples - devc->sent_samples;
471 }
f55bea76 472
ba508e22
UH		 473 /* Calculate the actual time covered by this run back from the sample
474 * count, rounded towards zero. This avoids getting stuck on a too-low
475 * time delta with no samples being sent due to round-off.
476 */
477 todo_us = samples_todo * G_USEC_PER_SEC / devc->cur_samplerate;
478
479 logic_done = devc->num_logic_channels > 0 ? 0 : samples_todo;
1b7b72d4
GS		 480 if (!devc->enabled_logic_channels)
481 logic_done = samples_todo;
ba508e22 482 analog_done = devc->num_analog_channels > 0 ? 0 : samples_todo;
1b7b72d4
GS		 483 if (!devc->enabled_analog_channels)
484 analog_done = samples_todo;
ba508e22
UH		 485
486 while (logic_done < samples_todo || analog_done < samples_todo) {
487 /* Logic */
488 if (logic_done < samples_todo) {
489 sending_now = MIN(samples_todo - logic_done,
490 LOGIC_BUFSIZE / devc->logic_unitsize);
491 logic_generator(sdi, sending_now * devc->logic_unitsize);
492 packet.type = SR_DF_LOGIC;
493 packet.payload = &logic;
494 logic.length = sending_now * devc->logic_unitsize;
495 logic.unitsize = devc->logic_unitsize;
496 logic.data = devc->logic_data;
4a465510 497 logic_fixup_feed(devc, &logic);
ba508e22
UH		 498 sr_session_send(sdi, &packet);
499 logic_done += sending_now;
500 }
501
502 /* Analog, one channel at a time */
503 if (analog_done < samples_todo) {
504 analog_sent = 0;
505
506 g_hash_table_iter_init(&iter, devc->ch_ag);
507 while (g_hash_table_iter_next(&iter, NULL, &value)) {
508 send_analog_packet(value, sdi, &analog_sent,
509 devc->sent_samples + analog_done,
510 samples_todo - analog_done);
511 }
512 analog_done += analog_sent;
513 }
514 }
515 /* At this point, both logic_done and analog_done should be
516 * exactly equal to samples_todo, or else.
517 */
518 if (logic_done != samples_todo || analog_done != samples_todo) {
519 sr_err("BUG: Sample count mismatch.");
520 return G_SOURCE_REMOVE;
521 }
522 devc->sent_samples += samples_todo;
523 devc->spent_us += todo_us;
524
525 if ((devc->limit_samples > 0 && devc->sent_samples >= devc->limit_samples)
526 || (limit_us > 0 && devc->spent_us >= limit_us)) {
527
528 /* If we're averaging everything - now is the time to send data */
d1144645 529 if (devc->avg && devc->avg_samples == 0) {
ba508e22
UH		 530 g_hash_table_iter_init(&iter, devc->ch_ag);
531 while (g_hash_table_iter_next(&iter, NULL, &value)) {
532 ag = value;
533 packet.type = SR_DF_ANALOG;
534 packet.payload = &ag->packet;
535 ag->packet.data = &ag->avg_val;
536 ag->packet.num_samples = 1;
537 sr_session_send(sdi, &packet);
538 }
539 }
540 sr_dbg("Requested number of samples reached.");
d2f7c417 541 sr_dev_acquisition_stop(sdi);
f55bea76
SA		 542 } else {
543 if (SAMPLES_PER_FRAME > 0) {
544 std_session_send_frame_end(sdi);
545 std_session_send_frame_begin(sdi);
546 }
ba508e22
UH		 547 }
548
549 return G_SOURCE_CONTINUE;
550}
Hardware access and backend lib