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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 | |
20 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
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 | ||
33 | static 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 | ||
44 | static 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 | ||
175 | SR_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 | ||
248 | static uint64_t encode_number_to_gray(uint64_t nr) | |
249 | { | |
250 | return nr ^ (nr >> 1); | |
251 | } | |
252 | ||
253 | static void set_logic_data(uint64_t bits, uint8_t *data, size_t len) | |
254 | { | |
255 | while (len--) { | |
256 | *data++ = bits & 0xff; | |
257 | bits >>= 8; | |
258 | } | |
259 | } | |
260 | ||
261 | static void logic_generator(struct sr_dev_inst *sdi, uint64_t size) | |
262 | { | |
263 | struct dev_context *devc; | |
264 | uint64_t i, j; | |
265 | uint8_t pat; | |
266 | uint8_t *sample; | |
267 | const uint8_t *image_col; | |
268 | size_t col_count, col_height; | |
269 | uint64_t gray; | |
270 | ||
271 | devc = sdi->priv; | |
272 | ||
273 | switch (devc->logic_pattern) { | |
274 | case PATTERN_SIGROK: | |
275 | memset(devc->logic_data, 0x00, size); | |
276 | for (i = 0; i < size; i += devc->logic_unitsize) { | |
277 | for (j = 0; j < devc->logic_unitsize; j++) { | |
278 | pat = pattern_sigrok[(devc->step + j) % sizeof(pattern_sigrok)] >> 1; | |
279 | devc->logic_data[i + j] = ~pat; | |
280 | } | |
281 | devc->step++; | |
282 | } | |
283 | break; | |
284 | case PATTERN_RANDOM: | |
285 | for (i = 0; i < size; i++) | |
286 | devc->logic_data[i] = (uint8_t)(rand() & 0xff); | |
287 | break; | |
288 | case PATTERN_INC: | |
289 | for (i = 0; i < size; i++) { | |
290 | for (j = 0; j < devc->logic_unitsize; j++) | |
291 | devc->logic_data[i + j] = devc->step; | |
292 | devc->step++; | |
293 | } | |
294 | break; | |
295 | case PATTERN_WALKING_ONE: | |
296 | /* j contains the value of the highest bit */ | |
297 | j = 1 << (devc->num_logic_channels - 1); | |
298 | for (i = 0; i < size; i++) { | |
299 | devc->logic_data[i] = devc->step; | |
300 | if (devc->step == 0) | |
301 | devc->step = 1; | |
302 | else | |
303 | if (devc->step == j) | |
304 | devc->step = 0; | |
305 | else | |
306 | devc->step <<= 1; | |
307 | } | |
308 | break; | |
309 | case PATTERN_WALKING_ZERO: | |
310 | /* Same as walking one, only with inverted output */ | |
311 | /* j contains the value of the highest bit */ | |
312 | j = 1 << (devc->num_logic_channels - 1); | |
313 | for (i = 0; i < size; i++) { | |
314 | devc->logic_data[i] = ~devc->step; | |
315 | if (devc->step == 0) | |
316 | devc->step = 1; | |
317 | else | |
318 | if (devc->step == j) | |
319 | devc->step = 0; | |
320 | else | |
321 | devc->step <<= 1; | |
322 | } | |
323 | break; | |
324 | case PATTERN_ALL_LOW: | |
325 | case PATTERN_ALL_HIGH: | |
326 | /* These were set when the pattern mode was selected. */ | |
327 | break; | |
328 | case PATTERN_SQUID: | |
329 | memset(devc->logic_data, 0x00, size); | |
330 | col_count = ARRAY_SIZE(pattern_squid); | |
331 | col_height = ARRAY_SIZE(pattern_squid[0]); | |
332 | for (i = 0; i < size; i += devc->logic_unitsize) { | |
333 | sample = &devc->logic_data[i]; | |
334 | image_col = pattern_squid[devc->step]; | |
335 | for (j = 0; j < devc->logic_unitsize; j++) { | |
336 | pat = image_col[j % col_height]; | |
337 | sample[j] = pat; | |
338 | } | |
339 | devc->step++; | |
340 | devc->step %= col_count; | |
341 | } | |
342 | break; | |
343 | case PATTERN_GRAYCODE: | |
344 | for (i = 0; i < size; i += devc->logic_unitsize) { | |
345 | devc->step++; | |
346 | devc->step &= devc->all_logic_channels_mask; | |
347 | gray = encode_number_to_gray(devc->step); | |
348 | gray &= devc->all_logic_channels_mask; | |
349 | set_logic_data(gray, &devc->logic_data[i], devc->logic_unitsize); | |
350 | } | |
351 | break; | |
352 | default: | |
353 | sr_err("Unknown pattern: %d.", devc->logic_pattern); | |
354 | break; | |
355 | } | |
356 | } | |
357 | ||
358 | /* | |
359 | * Fixup a memory image of generated logic data before it gets sent to | |
360 | * the session's datafeed. Mask out content from disabled channels. | |
361 | * | |
362 | * TODO: Need we apply a channel map, and enforce a dense representation | |
363 | * of the enabled channels' data? | |
364 | */ | |
365 | static void logic_fixup_feed(struct dev_context *devc, | |
366 | struct sr_datafeed_logic *logic) | |
367 | { | |
368 | size_t fp_off; | |
369 | uint8_t fp_mask; | |
370 | size_t off, idx; | |
371 | uint8_t *sample; | |
372 | ||
373 | fp_off = devc->first_partial_logic_index; | |
374 | fp_mask = devc->first_partial_logic_mask; | |
375 | if (fp_off == logic->unitsize) | |
376 | return; | |
377 | ||
378 | for (off = 0; off < logic->length; off += logic->unitsize) { | |
379 | sample = logic->data + off; | |
380 | sample[fp_off] &= fp_mask; | |
381 | for (idx = fp_off + 1; idx < logic->unitsize; idx++) | |
382 | sample[idx] = 0x00; | |
383 | } | |
384 | } | |
385 | ||
386 | static void send_analog_packet(struct analog_gen *ag, | |
387 | struct sr_dev_inst *sdi, uint64_t *analog_sent, | |
388 | uint64_t analog_pos, uint64_t analog_todo) | |
389 | { | |
390 | struct sr_datafeed_packet packet; | |
391 | struct dev_context *devc; | |
392 | uint64_t sending_now, to_avg; | |
393 | int ag_pattern_pos; | |
394 | unsigned int i; | |
395 | ||
396 | if (!ag->ch || !ag->ch->enabled) | |
397 | return; | |
398 | ||
399 | devc = sdi->priv; | |
400 | packet.type = SR_DF_ANALOG; | |
401 | packet.payload = &ag->packet; | |
402 | ||
403 | if (!devc->avg) { | |
404 | ag_pattern_pos = analog_pos % ag->num_samples; | |
405 | sending_now = MIN(analog_todo, ag->num_samples - ag_pattern_pos); | |
406 | ag->packet.data = ag->pattern_data + ag_pattern_pos; | |
407 | ag->packet.num_samples = sending_now; | |
408 | sr_session_send(sdi, &packet); | |
409 | ||
410 | /* Whichever channel group gets there first. */ | |
411 | *analog_sent = MAX(*analog_sent, sending_now); | |
412 | } else { | |
413 | ag_pattern_pos = analog_pos % ag->num_samples; | |
414 | to_avg = MIN(analog_todo, ag->num_samples - ag_pattern_pos); | |
415 | ||
416 | for (i = 0; i < to_avg; i++) { | |
417 | ag->avg_val = (ag->avg_val + | |
418 | *(ag->pattern_data + | |
419 | ag_pattern_pos + i)) / 2; | |
420 | ag->num_avgs++; | |
421 | /* Time to send averaged data? */ | |
422 | if (devc->avg_samples > 0 && | |
423 | ag->num_avgs >= devc->avg_samples) | |
424 | goto do_send; | |
425 | } | |
426 | ||
427 | if (devc->avg_samples == 0) { | |
428 | /* We're averaging all the samples, so wait with | |
429 | * sending until the very end. | |
430 | */ | |
431 | *analog_sent = ag->num_avgs; | |
432 | return; | |
433 | } | |
434 | ||
435 | do_send: | |
436 | ag->packet.data = &ag->avg_val; | |
437 | ag->packet.num_samples = 1; | |
438 | ||
439 | sr_session_send(sdi, &packet); | |
440 | *analog_sent = ag->num_avgs; | |
441 | ||
442 | ag->num_avgs = 0; | |
443 | ag->avg_val = 0.0f; | |
444 | } | |
445 | } | |
446 | ||
447 | /* Callback handling data */ | |
448 | SR_PRIV int demo_prepare_data(int fd, int revents, void *cb_data) | |
449 | { | |
450 | struct sr_dev_inst *sdi; | |
451 | struct dev_context *devc; | |
452 | struct sr_datafeed_packet packet; | |
453 | struct sr_datafeed_logic logic; | |
454 | struct analog_gen *ag; | |
455 | GHashTableIter iter; | |
456 | void *value; | |
457 | uint64_t samples_todo, logic_done, analog_done, analog_sent, sending_now; | |
458 | int64_t elapsed_us, limit_us, todo_us; | |
459 | ||
460 | (void)fd; | |
461 | (void)revents; | |
462 | ||
463 | sdi = cb_data; | |
464 | devc = sdi->priv; | |
465 | ||
466 | /* Just in case. */ | |
467 | if (devc->cur_samplerate <= 0 | |
468 | || (devc->num_logic_channels <= 0 | |
469 | && devc->num_analog_channels <= 0)) { | |
470 | sr_dev_acquisition_stop(sdi); | |
471 | return G_SOURCE_CONTINUE; | |
472 | } | |
473 | ||
474 | /* What time span should we send samples for? */ | |
475 | elapsed_us = g_get_monotonic_time() - devc->start_us; | |
476 | limit_us = 1000 * devc->limit_msec; | |
477 | if (limit_us > 0 && limit_us < elapsed_us) | |
478 | todo_us = MAX(0, limit_us - devc->spent_us); | |
479 | else | |
480 | todo_us = MAX(0, elapsed_us - devc->spent_us); | |
481 | ||
482 | /* How many samples are outstanding since the last round? */ | |
483 | samples_todo = (todo_us * devc->cur_samplerate + G_USEC_PER_SEC - 1) | |
484 | / G_USEC_PER_SEC; | |
485 | ||
486 | if (devc->limit_samples > 0) { | |
487 | if (devc->limit_samples < devc->sent_samples) | |
488 | samples_todo = 0; | |
489 | else if (devc->limit_samples - devc->sent_samples < samples_todo) | |
490 | samples_todo = devc->limit_samples - devc->sent_samples; | |
491 | } | |
492 | ||
493 | if (samples_todo == 0) | |
494 | return G_SOURCE_CONTINUE; | |
495 | ||
496 | if (devc->limit_frames) { | |
497 | /* Never send more samples than a frame can fit... */ | |
498 | samples_todo = MIN(samples_todo, SAMPLES_PER_FRAME); | |
499 | /* ...or than we need to finish the current frame. */ | |
500 | samples_todo = MIN(samples_todo, | |
501 | SAMPLES_PER_FRAME - devc->sent_frame_samples); | |
502 | } | |
503 | ||
504 | /* Calculate the actual time covered by this run back from the sample | |
505 | * count, rounded towards zero. This avoids getting stuck on a too-low | |
506 | * time delta with no samples being sent due to round-off. | |
507 | */ | |
508 | todo_us = samples_todo * G_USEC_PER_SEC / devc->cur_samplerate; | |
509 | ||
510 | logic_done = devc->num_logic_channels > 0 ? 0 : samples_todo; | |
511 | if (!devc->enabled_logic_channels) | |
512 | logic_done = samples_todo; | |
513 | analog_done = devc->num_analog_channels > 0 ? 0 : samples_todo; | |
514 | if (!devc->enabled_analog_channels) | |
515 | analog_done = samples_todo; | |
516 | ||
517 | while (logic_done < samples_todo || analog_done < samples_todo) { | |
518 | /* Logic */ | |
519 | if (logic_done < samples_todo) { | |
520 | sending_now = MIN(samples_todo - logic_done, | |
521 | LOGIC_BUFSIZE / devc->logic_unitsize); | |
522 | logic_generator(sdi, sending_now * devc->logic_unitsize); | |
523 | packet.type = SR_DF_LOGIC; | |
524 | packet.payload = &logic; | |
525 | logic.length = sending_now * devc->logic_unitsize; | |
526 | logic.unitsize = devc->logic_unitsize; | |
527 | logic.data = devc->logic_data; | |
528 | logic_fixup_feed(devc, &logic); | |
529 | sr_session_send(sdi, &packet); | |
530 | logic_done += sending_now; | |
531 | } | |
532 | ||
533 | /* Analog, one channel at a time */ | |
534 | if (analog_done < samples_todo) { | |
535 | analog_sent = 0; | |
536 | ||
537 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
538 | while (g_hash_table_iter_next(&iter, NULL, &value)) { | |
539 | send_analog_packet(value, sdi, &analog_sent, | |
540 | devc->sent_samples + analog_done, | |
541 | samples_todo - analog_done); | |
542 | } | |
543 | analog_done += analog_sent; | |
544 | } | |
545 | } | |
546 | /* At this point, both logic_done and analog_done should be | |
547 | * exactly equal to samples_todo, or else. | |
548 | */ | |
549 | if (logic_done != samples_todo || analog_done != samples_todo) { | |
550 | sr_err("BUG: Sample count mismatch."); | |
551 | return G_SOURCE_REMOVE; | |
552 | } | |
553 | devc->sent_samples += samples_todo; | |
554 | devc->sent_frame_samples += samples_todo; | |
555 | devc->spent_us += todo_us; | |
556 | ||
557 | if (devc->limit_frames && devc->sent_frame_samples >= SAMPLES_PER_FRAME) { | |
558 | std_session_send_frame_end(sdi); | |
559 | devc->sent_frame_samples = 0; | |
560 | devc->limit_frames--; | |
561 | if (!devc->limit_frames) { | |
562 | sr_dbg("Requested number of frames reached."); | |
563 | sr_dev_acquisition_stop(sdi); | |
564 | } | |
565 | } | |
566 | ||
567 | if ((devc->limit_samples > 0 && devc->sent_samples >= devc->limit_samples) | |
568 | || (limit_us > 0 && devc->spent_us >= limit_us)) { | |
569 | ||
570 | /* If we're averaging everything - now is the time to send data */ | |
571 | if (devc->avg && devc->avg_samples == 0) { | |
572 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
573 | while (g_hash_table_iter_next(&iter, NULL, &value)) { | |
574 | ag = value; | |
575 | packet.type = SR_DF_ANALOG; | |
576 | packet.payload = &ag->packet; | |
577 | ag->packet.data = &ag->avg_val; | |
578 | ag->packet.num_samples = 1; | |
579 | sr_session_send(sdi, &packet); | |
580 | } | |
581 | } | |
582 | sr_dbg("Requested number of samples reached."); | |
583 | sr_dev_acquisition_stop(sdi); | |
584 | } else if (devc->limit_frames) { | |
585 | if (devc->sent_frame_samples == 0) | |
586 | std_session_send_frame_begin(sdi); | |
587 | } | |
588 | ||
589 | return G_SOURCE_CONTINUE; | |
590 | } |