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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 | * Copyright (C) 2019 Frank Stettner <frank-stettner@gmx.net> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
22 | */ | |
23 | ||
24 | #include <config.h> | |
25 | #include <stdlib.h> | |
26 | #include <string.h> | |
27 | #include <math.h> | |
28 | #include <libsigrok/libsigrok.h> | |
29 | #include "libsigrok-internal.h" | |
30 | #include "protocol.h" | |
31 | ||
32 | #define ANALOG_SAMPLES_PER_PERIOD 20 | |
33 | ||
34 | static const uint8_t pattern_sigrok[] = { | |
35 | 0x4c, 0x92, 0x92, 0x92, 0x64, 0x00, 0x00, 0x00, | |
36 | 0x82, 0xfe, 0xfe, 0x82, 0x00, 0x00, 0x00, 0x00, | |
37 | 0x7c, 0x82, 0x82, 0x92, 0x74, 0x00, 0x00, 0x00, | |
38 | 0xfe, 0x12, 0x12, 0x32, 0xcc, 0x00, 0x00, 0x00, | |
39 | 0x7c, 0x82, 0x82, 0x82, 0x7c, 0x00, 0x00, 0x00, | |
40 | 0xfe, 0x10, 0x28, 0x44, 0x82, 0x00, 0x00, 0x00, | |
41 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
42 | 0xbe, 0xbe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
43 | }; | |
44 | ||
45 | static const uint8_t pattern_squid[128][128 / 8] = { | |
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, 0x00, 0x00, 0x00, }, | |
57 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0xe0, 0x00, }, | |
58 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xe1, 0x01, }, | |
59 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xe1, 0x01, }, | |
60 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xe3, 0x03, }, | |
61 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xe3, 0x03, }, | |
62 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xc3, 0x03, }, | |
63 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xcf, 0xc7, 0x03, }, | |
64 | { 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0xc7, 0x03, }, | |
65 | { 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x87, 0x03, }, | |
66 | { 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0xc7, 0x03, }, | |
67 | { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0xcf, 0x03, }, | |
68 | { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xcf, 0x03, }, | |
69 | { 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0xff, 0x03, }, | |
70 | { 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0xff, 0x03, }, | |
71 | { 0x00, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0xfe, 0x01, }, | |
72 | { 0x00, 0x00, 0x00, 0x80, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0xfe, 0x01, }, | |
73 | { 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0xfc, 0x00, }, | |
74 | { 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, | |
75 | { 0x00, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, | |
76 | { 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, | |
77 | { 0x00, 0xc0, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, | |
78 | { 0x00, 0x80, 0x01, 0x00, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0xfe, 0xff, 0x03, }, | |
79 | { 0x00, 0x00, 0x07, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xfe, 0xff, 0x03, }, | |
80 | { 0x00, 0x00, 0x1c, 0x00, 0xe0, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xfe, 0xff, 0x03, }, | |
81 | { 0x00, 0x00, 0x78, 0x00, 0xc0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xfe, 0xff, 0x03, }, | |
82 | { 0x00, 0x00, 0xe0, 0x00, 0x80, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0xfe, 0xff, 0x03, }, | |
83 | { 0x00, 0x00, 0xc0, 0x03, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, | |
84 | { 0x00, 0x00, 0x00, 0x07, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, | |
85 | { 0x00, 0x00, 0x00, 0x1c, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, | |
86 | { 0x00, 0x00, 0x00, 0xf8, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x03, 0x00, }, | |
87 | { 0x00, 0x00, 0x00, 0xf0, 0x01, 0x38, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x01, 0x00, 0xf0, 0x1f, 0x1c, }, | |
88 | { 0x00, 0x00, 0x00, 0xe0, 0x07, 0x70, 0x00, 0x00, 0x00, 0xfe, 0xff, 0x0f, 0x00, 0xfc, 0x3f, 0x3c, }, | |
89 | { 0x80, 0x03, 0x00, 0xc0, 0x0f, 0xe0, 0x00, 0x00, 0x80, 0xff, 0xff, 0x3f, 0x00, 0xfc, 0x7f, 0x7c, }, | |
90 | { 0x00, 0x1e, 0x00, 0x00, 0x1f, 0xc0, 0x01, 0x00, 0xc0, 0xff, 0xff, 0x7f, 0x00, 0xfe, 0xff, 0x7c, }, | |
91 | { 0x00, 0xf0, 0x01, 0x00, 0x7c, 0x80, 0x03, 0x00, 0xc0, 0xff, 0xff, 0xff, 0x00, 0xfe, 0xff, 0x7c, }, | |
92 | { 0x00, 0xc0, 0x0f, 0x00, 0xf0, 0x00, 0x07, 0x00, 0xc0, 0xff, 0xff, 0xff, 0x00, 0x3f, 0xf8, 0x78, }, | |
93 | { 0x00, 0x00, 0x3e, 0x00, 0xc0, 0x03, 0x0e, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xf0, 0xf0, }, | |
94 | { 0x00, 0x00, 0xf0, 0x07, 0x80, 0x07, 0x3c, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xf0, 0xf0, }, | |
95 | { 0x00, 0x00, 0x80, 0x3f, 0x00, 0x1e, 0x78, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xe0, 0xf0, }, | |
96 | { 0x00, 0x00, 0x00, 0xff, 0x00, 0x7c, 0xe0, 0x01, 0xe0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xe0, 0xf0, }, | |
97 | { 0x00, 0x00, 0x00, 0xfc, 0x03, 0xf0, 0xc1, 0x07, 0xf0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xf0, 0xf0, }, | |
98 | { 0x00, 0x00, 0x00, 0xe0, 0x1f, 0xc0, 0x03, 0x1f, 0xe0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xf0, 0x78, }, | |
99 | { 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x1f, 0xfc, 0xe0, 0xff, 0xff, 0xff, 0x01, 0xff, 0xff, 0x7f, }, | |
100 | { 0xf8, 0x03, 0x00, 0x00, 0xf0, 0x07, 0xfe, 0xf0, 0xff, 0xff, 0xff, 0xff, 0x01, 0xff, 0xff, 0x7f, }, | |
101 | { 0x80, 0xff, 0x01, 0x00, 0x80, 0x3f, 0xf0, 0x8f, 0xff, 0xff, 0xff, 0xff, 0x00, 0xfe, 0xff, 0x3f, }, | |
102 | { 0x00, 0xf0, 0xff, 0x07, 0x00, 0xfc, 0x83, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xfe, 0xff, 0x3f, }, | |
103 | { 0x00, 0x00, 0xfc, 0x7f, 0x00, 0xe0, 0x7f, 0xfc, 0xff, 0xff, 0xff, 0xff, 0x00, 0xfe, 0xff, 0x1f, }, | |
104 | { 0x00, 0x00, 0xc0, 0xff, 0x1f, 0x00, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xfc, 0xff, 0x03, }, | |
105 | { 0x00, 0x00, 0x00, 0xf8, 0xff, 0x07, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, }, | |
106 | { 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x0f, 0xe0, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, }, | |
107 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, }, | |
108 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, }, | |
109 | { 0x00, 0x00, 0xf8, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0xff, 0xff, 0x03, }, | |
110 | { 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0xff, 0xff, 0x03, }, | |
111 | { 0x00, 0x10, 0xf8, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0x03, }, | |
112 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0x03, }, | |
113 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0x03, }, | |
114 | { 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x0f, 0xe0, 0xff, 0xff, 0xff, 0xff, 0x00, 0x7c, 0x00, 0x00, }, | |
115 | { 0x00, 0x00, 0x00, 0xf8, 0xff, 0x07, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x3c, 0x00, 0x00, }, | |
116 | { 0x00, 0x00, 0xc0, 0xff, 0x1f, 0x00, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x1e, 0x00, 0x00, }, | |
117 | { 0x00, 0x00, 0xf8, 0x7f, 0x00, 0xe0, 0x7f, 0xfc, 0xff, 0xff, 0xff, 0xff, 0x00, 0x1e, 0x00, 0x00, }, | |
118 | { 0x00, 0xf0, 0xff, 0x07, 0x00, 0xfc, 0x83, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0x0f, 0x00, 0x00, }, | |
119 | { 0x80, 0xff, 0x01, 0x00, 0x80, 0x3f, 0xf0, 0x8f, 0xff, 0xff, 0xff, 0xff, 0x01, 0x0f, 0x00, 0x00, }, | |
120 | { 0xf8, 0x03, 0x00, 0x00, 0xf0, 0x07, 0xfe, 0xf0, 0xff, 0xff, 0xff, 0xff, 0x00, 0x0f, 0x00, 0x00, }, | |
121 | { 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x1f, 0xfc, 0xe0, 0xff, 0xff, 0xff, 0x00, 0x0f, 0x00, 0x00, }, | |
122 | { 0x00, 0x00, 0x00, 0xe0, 0x1f, 0xc0, 0x07, 0x1f, 0xf0, 0xff, 0xff, 0xff, 0x00, 0x06, 0x00, 0x00, }, | |
123 | { 0x00, 0x00, 0x00, 0xfc, 0x03, 0xf0, 0xc1, 0x07, 0xf0, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, }, | |
124 | { 0x00, 0x00, 0x00, 0xff, 0x00, 0x7c, 0xe0, 0x01, 0xf0, 0xff, 0xff, 0xff, 0x01, 0xe0, 0x1f, 0x00, }, | |
125 | { 0x00, 0x00, 0x80, 0x3f, 0x00, 0x1e, 0x78, 0x00, 0xf0, 0xff, 0xff, 0xff, 0x01, 0xf0, 0x7f, 0x00, }, | |
126 | { 0x00, 0x00, 0xf0, 0x0f, 0x80, 0x07, 0x3c, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x01, 0xfc, 0xff, 0x00, }, | |
127 | { 0x00, 0x00, 0x3e, 0x00, 0xc0, 0x03, 0x0e, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x01, 0xfc, 0xff, 0x01, }, | |
128 | { 0x00, 0xc0, 0x0f, 0x00, 0xf0, 0x00, 0x07, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x01, 0xfe, 0xff, 0x01, }, | |
129 | { 0x00, 0xf0, 0x01, 0x00, 0x7c, 0x80, 0x03, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0x03, }, | |
130 | { 0x00, 0x3e, 0x00, 0x00, 0x1f, 0xc0, 0x01, 0x00, 0x80, 0xff, 0xff, 0xff, 0x00, 0x1f, 0xe0, 0x03, }, | |
131 | { 0x80, 0x03, 0x00, 0xc0, 0x0f, 0xe0, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x0f, 0xc0, 0x03, }, | |
132 | { 0x00, 0x00, 0x00, 0xe0, 0x07, 0x70, 0x00, 0x00, 0x00, 0xfc, 0xff, 0xff, 0x00, 0x0f, 0xc0, 0x03, }, | |
133 | { 0x00, 0x00, 0x00, 0xf0, 0x01, 0x38, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x01, 0x00, 0x0f, 0x80, 0x03, }, | |
134 | { 0x00, 0x00, 0x00, 0xf8, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xc0, 0x03, }, | |
135 | { 0x00, 0x00, 0x00, 0x1c, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xc0, 0x03, }, | |
136 | { 0x00, 0x00, 0x00, 0x07, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0xe0, 0x03, }, | |
137 | { 0x00, 0x00, 0xc0, 0x03, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xf8, 0x03, }, | |
138 | { 0x00, 0x00, 0xe0, 0x00, 0x80, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0x01, }, | |
139 | { 0x00, 0x00, 0x78, 0x00, 0xc0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0x01, }, | |
140 | { 0x00, 0x00, 0x1c, 0x00, 0xe0, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0x00, }, | |
141 | { 0x00, 0x00, 0x06, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x7f, 0x00, }, | |
142 | { 0x00, 0x80, 0x03, 0x00, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x1f, 0x00, }, | |
143 | { 0x00, 0xc0, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, | |
144 | { 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, | |
145 | { 0x00, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, | |
146 | { 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0x01, }, | |
147 | { 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0x03, }, | |
148 | { 0x00, 0x00, 0x00, 0x80, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0x03, }, | |
149 | { 0x00, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0x03, }, | |
150 | { 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0x03, }, | |
151 | { 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0x03, }, | |
152 | { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x07, 0x00, }, | |
153 | { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x07, 0x00, }, | |
154 | { 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0x0f, 0x00, }, | |
155 | { 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x1f, 0x00, }, | |
156 | { 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x3f, 0x00, }, | |
157 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0x00, }, | |
158 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0x01, }, | |
159 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xfc, 0x03, }, | |
160 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xf8, 0x03, }, | |
161 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0xf0, 0x03, }, | |
162 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xc0, 0x03, }, | |
163 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, }, | |
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 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, | |
174 | }; | |
175 | ||
176 | SR_PRIV void demo_generate_analog_pattern(struct dev_context *devc) | |
177 | { | |
178 | double t, frequency; | |
179 | float amplitude, offset; | |
180 | struct analog_pattern *pattern; | |
181 | unsigned int num_samples, i; | |
182 | float value; | |
183 | int last_end; | |
184 | ||
185 | num_samples = ANALOG_BUFSIZE / sizeof(float); | |
186 | frequency = (double) devc->cur_samplerate / ANALOG_SAMPLES_PER_PERIOD; | |
187 | amplitude = DEFAULT_ANALOG_AMPLITUDE; | |
188 | offset = DEFAULT_ANALOG_OFFSET; | |
189 | ||
190 | /* | |
191 | * FIXME: We actually need only one period. A ringbuffer would be | |
192 | * useful here. | |
193 | * Make sure the number of samples we put out is an integer | |
194 | * multiple of our period size. | |
195 | */ | |
196 | ||
197 | /* PATTERN_SQUARE: */ | |
198 | sr_dbg("Generating %s pattern.", analog_pattern_str[PATTERN_SQUARE]); | |
199 | pattern = g_malloc(sizeof(struct analog_pattern)); | |
200 | value = amplitude; | |
201 | last_end = 0; | |
202 | for (i = 0; i < num_samples; i++) { | |
203 | if (i % 5 == 0) | |
204 | value = -value; | |
205 | if (i % 10 == 0) | |
206 | last_end = i; | |
207 | pattern->data[i] = value + offset; | |
208 | } | |
209 | pattern->num_samples = last_end; | |
210 | devc->analog_patterns[PATTERN_SQUARE] = pattern; | |
211 | ||
212 | /* Readjusting num_samples for all other patterns. */ | |
213 | while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0) | |
214 | num_samples--; | |
215 | ||
216 | /* PATTERN_SINE: */ | |
217 | sr_dbg("Generating %s pattern.", analog_pattern_str[PATTERN_SINE]); | |
218 | pattern = g_malloc(sizeof(struct analog_pattern)); | |
219 | for (i = 0; i < num_samples; i++) { | |
220 | t = (double) i / (double) devc->cur_samplerate; | |
221 | pattern->data[i] = sin(2 * G_PI * frequency * t) * amplitude + offset; | |
222 | } | |
223 | pattern->num_samples = last_end; | |
224 | devc->analog_patterns[PATTERN_SINE] = pattern; | |
225 | ||
226 | /* PATTERN_TRIANGLE: */ | |
227 | sr_dbg("Generating %s pattern.", analog_pattern_str[PATTERN_TRIANGLE]); | |
228 | pattern = g_malloc(sizeof(struct analog_pattern)); | |
229 | for (i = 0; i < num_samples; i++) { | |
230 | t = (double) i / (double) devc->cur_samplerate; | |
231 | pattern->data[i] = (2 / G_PI) * asin(sin(2 * G_PI * frequency * t)) * | |
232 | amplitude + offset; | |
233 | } | |
234 | pattern->num_samples = last_end; | |
235 | devc->analog_patterns[PATTERN_TRIANGLE] = pattern; | |
236 | ||
237 | /* PATTERN_SAWTOOTH: */ | |
238 | sr_dbg("Generating %s pattern.", analog_pattern_str[PATTERN_SAWTOOTH]); | |
239 | pattern = g_malloc(sizeof(struct analog_pattern)); | |
240 | for (i = 0; i < num_samples; i++) { | |
241 | t = (double) i / (double) devc->cur_samplerate; | |
242 | pattern->data[i] = 2 * ((t * frequency) - floor(0.5f + t * frequency)) * | |
243 | amplitude + offset; | |
244 | } | |
245 | pattern->num_samples = last_end; | |
246 | devc->analog_patterns[PATTERN_SAWTOOTH] = pattern; | |
247 | ||
248 | /* PATTERN_ANALOG_RANDOM */ | |
249 | /* Data not filled here, will be generated in send_analog_packet(). */ | |
250 | pattern = g_malloc(sizeof(struct analog_pattern)); | |
251 | pattern->num_samples = last_end; | |
252 | devc->analog_patterns[PATTERN_ANALOG_RANDOM] = pattern; | |
253 | } | |
254 | ||
255 | static uint64_t encode_number_to_gray(uint64_t nr) | |
256 | { | |
257 | return nr ^ (nr >> 1); | |
258 | } | |
259 | ||
260 | static void set_logic_data(uint64_t bits, uint8_t *data, size_t len) | |
261 | { | |
262 | while (len--) { | |
263 | *data++ = bits & 0xff; | |
264 | bits >>= 8; | |
265 | } | |
266 | } | |
267 | ||
268 | static void logic_generator(struct sr_dev_inst *sdi, uint64_t size) | |
269 | { | |
270 | struct dev_context *devc; | |
271 | uint64_t i, j; | |
272 | uint8_t pat; | |
273 | uint8_t *sample; | |
274 | const uint8_t *image_col; | |
275 | size_t col_count, col_height; | |
276 | uint64_t gray; | |
277 | ||
278 | devc = sdi->priv; | |
279 | ||
280 | switch (devc->logic_pattern) { | |
281 | case PATTERN_SIGROK: | |
282 | memset(devc->logic_data, 0x00, size); | |
283 | for (i = 0; i < size; i += devc->logic_unitsize) { | |
284 | for (j = 0; j < devc->logic_unitsize; j++) { | |
285 | pat = pattern_sigrok[(devc->step + j) % sizeof(pattern_sigrok)] >> 1; | |
286 | devc->logic_data[i + j] = ~pat; | |
287 | } | |
288 | devc->step++; | |
289 | } | |
290 | break; | |
291 | case PATTERN_RANDOM: | |
292 | for (i = 0; i < size; i++) | |
293 | devc->logic_data[i] = (uint8_t)(rand() & 0xff); | |
294 | break; | |
295 | case PATTERN_INC: | |
296 | for (i = 0; i < size; i++) { | |
297 | for (j = 0; j < devc->logic_unitsize; j++) | |
298 | devc->logic_data[i + j] = devc->step; | |
299 | devc->step++; | |
300 | } | |
301 | break; | |
302 | case PATTERN_WALKING_ONE: | |
303 | /* j contains the value of the highest bit */ | |
304 | j = 1 << (devc->num_logic_channels - 1); | |
305 | for (i = 0; i < size; i++) { | |
306 | devc->logic_data[i] = devc->step; | |
307 | if (devc->step == 0) | |
308 | devc->step = 1; | |
309 | else | |
310 | if (devc->step == j) | |
311 | devc->step = 0; | |
312 | else | |
313 | devc->step <<= 1; | |
314 | } | |
315 | break; | |
316 | case PATTERN_WALKING_ZERO: | |
317 | /* Same as walking one, only with inverted output */ | |
318 | /* j contains the value of the highest bit */ | |
319 | j = 1 << (devc->num_logic_channels - 1); | |
320 | for (i = 0; i < size; i++) { | |
321 | devc->logic_data[i] = ~devc->step; | |
322 | if (devc->step == 0) | |
323 | devc->step = 1; | |
324 | else | |
325 | if (devc->step == j) | |
326 | devc->step = 0; | |
327 | else | |
328 | devc->step <<= 1; | |
329 | } | |
330 | break; | |
331 | case PATTERN_ALL_LOW: | |
332 | case PATTERN_ALL_HIGH: | |
333 | /* These were set when the pattern mode was selected. */ | |
334 | break; | |
335 | case PATTERN_SQUID: | |
336 | memset(devc->logic_data, 0x00, size); | |
337 | col_count = ARRAY_SIZE(pattern_squid); | |
338 | col_height = ARRAY_SIZE(pattern_squid[0]); | |
339 | for (i = 0; i < size; i += devc->logic_unitsize) { | |
340 | sample = &devc->logic_data[i]; | |
341 | image_col = pattern_squid[devc->step]; | |
342 | for (j = 0; j < devc->logic_unitsize; j++) { | |
343 | pat = image_col[j % col_height]; | |
344 | sample[j] = pat; | |
345 | } | |
346 | devc->step++; | |
347 | devc->step %= col_count; | |
348 | } | |
349 | break; | |
350 | case PATTERN_GRAYCODE: | |
351 | for (i = 0; i < size; i += devc->logic_unitsize) { | |
352 | devc->step++; | |
353 | devc->step &= devc->all_logic_channels_mask; | |
354 | gray = encode_number_to_gray(devc->step); | |
355 | gray &= devc->all_logic_channels_mask; | |
356 | set_logic_data(gray, &devc->logic_data[i], devc->logic_unitsize); | |
357 | } | |
358 | break; | |
359 | default: | |
360 | sr_err("Unknown pattern: %d.", devc->logic_pattern); | |
361 | break; | |
362 | } | |
363 | } | |
364 | ||
365 | /* | |
366 | * Fixup a memory image of generated logic data before it gets sent to | |
367 | * the session's datafeed. Mask out content from disabled channels. | |
368 | * | |
369 | * TODO: Need we apply a channel map, and enforce a dense representation | |
370 | * of the enabled channels' data? | |
371 | */ | |
372 | static void logic_fixup_feed(struct dev_context *devc, | |
373 | struct sr_datafeed_logic *logic) | |
374 | { | |
375 | size_t fp_off; | |
376 | uint8_t fp_mask; | |
377 | size_t off, idx; | |
378 | uint8_t *sample; | |
379 | ||
380 | fp_off = devc->first_partial_logic_index; | |
381 | fp_mask = devc->first_partial_logic_mask; | |
382 | if (fp_off == logic->unitsize) | |
383 | return; | |
384 | ||
385 | for (off = 0; off < logic->length; off += logic->unitsize) { | |
386 | sample = logic->data + off; | |
387 | sample[fp_off] &= fp_mask; | |
388 | for (idx = fp_off + 1; idx < logic->unitsize; idx++) | |
389 | sample[idx] = 0x00; | |
390 | } | |
391 | } | |
392 | ||
393 | static void send_analog_packet(struct analog_gen *ag, | |
394 | struct sr_dev_inst *sdi, uint64_t *analog_sent, | |
395 | uint64_t analog_pos, uint64_t analog_todo) | |
396 | { | |
397 | struct sr_datafeed_packet packet; | |
398 | struct dev_context *devc; | |
399 | struct analog_pattern *pattern; | |
400 | uint64_t sending_now, to_avg; | |
401 | int ag_pattern_pos; | |
402 | unsigned int i; | |
403 | float amplitude, offset, value; | |
404 | float *data; | |
405 | ||
406 | if (!ag->ch || !ag->ch->enabled) | |
407 | return; | |
408 | ||
409 | devc = sdi->priv; | |
410 | packet.type = SR_DF_ANALOG; | |
411 | packet.payload = &ag->packet; | |
412 | ||
413 | pattern = devc->analog_patterns[ag->pattern]; | |
414 | ||
415 | ag->packet.meaning->channels = g_slist_append(NULL, ag->ch); | |
416 | ag->packet.meaning->mq = ag->mq; | |
417 | ag->packet.meaning->mqflags = ag->mq_flags; | |
418 | ||
419 | /* Set a unit for the given quantity. */ | |
420 | if (ag->mq == SR_MQ_VOLTAGE) | |
421 | ag->packet.meaning->unit = SR_UNIT_VOLT; | |
422 | else if (ag->mq == SR_MQ_CURRENT) | |
423 | ag->packet.meaning->unit = SR_UNIT_AMPERE; | |
424 | else if (ag->mq == SR_MQ_RESISTANCE) | |
425 | ag->packet.meaning->unit = SR_UNIT_OHM; | |
426 | else if (ag->mq == SR_MQ_CAPACITANCE) | |
427 | ag->packet.meaning->unit = SR_UNIT_FARAD; | |
428 | else if (ag->mq == SR_MQ_TEMPERATURE) | |
429 | ag->packet.meaning->unit = SR_UNIT_CELSIUS; | |
430 | else if (ag->mq == SR_MQ_FREQUENCY) | |
431 | ag->packet.meaning->unit = SR_UNIT_HERTZ; | |
432 | else if (ag->mq == SR_MQ_DUTY_CYCLE) | |
433 | ag->packet.meaning->unit = SR_UNIT_PERCENTAGE; | |
434 | else if (ag->mq == SR_MQ_CONTINUITY) | |
435 | ag->packet.meaning->unit = SR_UNIT_OHM; | |
436 | else if (ag->mq == SR_MQ_PULSE_WIDTH) | |
437 | ag->packet.meaning->unit = SR_UNIT_PERCENTAGE; | |
438 | else if (ag->mq == SR_MQ_CONDUCTANCE) | |
439 | ag->packet.meaning->unit = SR_UNIT_SIEMENS; | |
440 | else if (ag->mq == SR_MQ_POWER) | |
441 | ag->packet.meaning->unit = SR_UNIT_WATT; | |
442 | else if (ag->mq == SR_MQ_GAIN) | |
443 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
444 | else if (ag->mq == SR_MQ_SOUND_PRESSURE_LEVEL) | |
445 | ag->packet.meaning->unit = SR_UNIT_DECIBEL_SPL; | |
446 | else if (ag->mq == SR_MQ_CARBON_MONOXIDE) | |
447 | ag->packet.meaning->unit = SR_UNIT_CONCENTRATION; | |
448 | else if (ag->mq == SR_MQ_RELATIVE_HUMIDITY) | |
449 | ag->packet.meaning->unit = SR_UNIT_HUMIDITY_293K; | |
450 | else if (ag->mq == SR_MQ_TIME) | |
451 | ag->packet.meaning->unit = SR_UNIT_SECOND; | |
452 | else if (ag->mq == SR_MQ_WIND_SPEED) | |
453 | ag->packet.meaning->unit = SR_UNIT_METER_SECOND; | |
454 | else if (ag->mq == SR_MQ_PRESSURE) | |
455 | ag->packet.meaning->unit = SR_UNIT_HECTOPASCAL; | |
456 | else if (ag->mq == SR_MQ_PARALLEL_INDUCTANCE) | |
457 | ag->packet.meaning->unit = SR_UNIT_HENRY; | |
458 | else if (ag->mq == SR_MQ_PARALLEL_CAPACITANCE) | |
459 | ag->packet.meaning->unit = SR_UNIT_FARAD; | |
460 | else if (ag->mq == SR_MQ_PARALLEL_RESISTANCE) | |
461 | ag->packet.meaning->unit = SR_UNIT_OHM; | |
462 | else if (ag->mq == SR_MQ_SERIES_INDUCTANCE) | |
463 | ag->packet.meaning->unit = SR_UNIT_HENRY; | |
464 | else if (ag->mq == SR_MQ_SERIES_CAPACITANCE) | |
465 | ag->packet.meaning->unit = SR_UNIT_FARAD; | |
466 | else if (ag->mq == SR_MQ_SERIES_RESISTANCE) | |
467 | ag->packet.meaning->unit = SR_UNIT_OHM; | |
468 | else if (ag->mq == SR_MQ_DISSIPATION_FACTOR) | |
469 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
470 | else if (ag->mq == SR_MQ_QUALITY_FACTOR) | |
471 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
472 | else if (ag->mq == SR_MQ_PHASE_ANGLE) | |
473 | ag->packet.meaning->unit = SR_UNIT_DEGREE; | |
474 | else if (ag->mq == SR_MQ_DIFFERENCE) | |
475 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
476 | else if (ag->mq == SR_MQ_COUNT) | |
477 | ag->packet.meaning->unit = SR_UNIT_PIECE; | |
478 | else if (ag->mq == SR_MQ_POWER_FACTOR) | |
479 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
480 | else if (ag->mq == SR_MQ_APPARENT_POWER) | |
481 | ag->packet.meaning->unit = SR_UNIT_VOLT_AMPERE; | |
482 | else if (ag->mq == SR_MQ_MASS) | |
483 | ag->packet.meaning->unit = SR_UNIT_GRAM; | |
484 | else if (ag->mq == SR_MQ_HARMONIC_RATIO) | |
485 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
486 | else | |
487 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
488 | ||
489 | if (!devc->avg) { | |
490 | ag_pattern_pos = analog_pos % pattern->num_samples; | |
491 | sending_now = MIN(analog_todo, pattern->num_samples - ag_pattern_pos); | |
492 | if (ag->amplitude != DEFAULT_ANALOG_AMPLITUDE || | |
493 | ag->offset != DEFAULT_ANALOG_OFFSET || | |
494 | ag->pattern == PATTERN_ANALOG_RANDOM) { | |
495 | /* | |
496 | * Amplitude or offset changed (or we are generating | |
497 | * random data), modify each sample. | |
498 | */ | |
499 | if (ag->pattern == PATTERN_ANALOG_RANDOM) { | |
500 | amplitude = ag->amplitude / 500.0; | |
501 | offset = ag->offset - DEFAULT_ANALOG_OFFSET - ag->amplitude; | |
502 | } else { | |
503 | amplitude = ag->amplitude / DEFAULT_ANALOG_AMPLITUDE; | |
504 | offset = ag->offset - DEFAULT_ANALOG_OFFSET; | |
505 | } | |
506 | data = ag->packet.data; | |
507 | for (i = 0; i < sending_now; i++) { | |
508 | if (ag->pattern == PATTERN_ANALOG_RANDOM) | |
509 | data[i] = (rand() % 1000) * amplitude + offset; | |
510 | else | |
511 | data[i] = pattern->data[ag_pattern_pos + i] * amplitude + offset; | |
512 | } | |
513 | } else { | |
514 | /* Amplitude and offset unchanged, use the fast way. */ | |
515 | ag->packet.data = pattern->data + ag_pattern_pos; | |
516 | } | |
517 | ag->packet.num_samples = sending_now; | |
518 | sr_session_send(sdi, &packet); | |
519 | ||
520 | /* Whichever channel group gets there first. */ | |
521 | *analog_sent = MAX(*analog_sent, sending_now); | |
522 | } else { | |
523 | ag_pattern_pos = analog_pos % pattern->num_samples; | |
524 | to_avg = MIN(analog_todo, pattern->num_samples - ag_pattern_pos); | |
525 | if (ag->pattern == PATTERN_ANALOG_RANDOM) { | |
526 | amplitude = ag->amplitude / 500.0; | |
527 | offset = ag->offset - DEFAULT_ANALOG_OFFSET - ag->amplitude; | |
528 | } else { | |
529 | amplitude = ag->amplitude / DEFAULT_ANALOG_AMPLITUDE; | |
530 | offset = ag->offset - DEFAULT_ANALOG_OFFSET; | |
531 | } | |
532 | ||
533 | for (i = 0; i < to_avg; i++) { | |
534 | if (ag->pattern == PATTERN_ANALOG_RANDOM) | |
535 | value = (rand() % 1000) * amplitude + offset; | |
536 | else | |
537 | value = *(pattern->data + ag_pattern_pos + i) * amplitude + offset; | |
538 | ag->avg_val = (ag->avg_val + value) / 2; | |
539 | ag->num_avgs++; | |
540 | /* Time to send averaged data? */ | |
541 | if ((devc->avg_samples > 0) && (ag->num_avgs >= devc->avg_samples)) | |
542 | goto do_send; | |
543 | } | |
544 | ||
545 | if (devc->avg_samples == 0) { | |
546 | /* | |
547 | * We're averaging all the samples, so wait with | |
548 | * sending until the very end. | |
549 | */ | |
550 | *analog_sent = ag->num_avgs; | |
551 | return; | |
552 | } | |
553 | ||
554 | do_send: | |
555 | ag->packet.data = &ag->avg_val; | |
556 | ag->packet.num_samples = 1; | |
557 | ||
558 | sr_session_send(sdi, &packet); | |
559 | *analog_sent = ag->num_avgs; | |
560 | ||
561 | ag->num_avgs = 0; | |
562 | ag->avg_val = 0.0f; | |
563 | } | |
564 | } | |
565 | ||
566 | /* Callback handling data */ | |
567 | SR_PRIV int demo_prepare_data(int fd, int revents, void *cb_data) | |
568 | { | |
569 | struct sr_dev_inst *sdi; | |
570 | struct dev_context *devc; | |
571 | struct sr_datafeed_packet packet; | |
572 | struct sr_datafeed_logic logic; | |
573 | struct analog_gen *ag; | |
574 | GHashTableIter iter; | |
575 | void *value; | |
576 | uint64_t samples_todo, logic_done, analog_done, analog_sent, sending_now; | |
577 | int64_t elapsed_us, limit_us, todo_us; | |
578 | int64_t trigger_offset; | |
579 | int pre_trigger_samples; | |
580 | ||
581 | (void)fd; | |
582 | (void)revents; | |
583 | ||
584 | sdi = cb_data; | |
585 | devc = sdi->priv; | |
586 | ||
587 | /* Just in case. */ | |
588 | if (devc->cur_samplerate <= 0 | |
589 | || (devc->num_logic_channels <= 0 | |
590 | && devc->num_analog_channels <= 0)) { | |
591 | sr_dev_acquisition_stop(sdi); | |
592 | return G_SOURCE_CONTINUE; | |
593 | } | |
594 | ||
595 | /* What time span should we send samples for? */ | |
596 | elapsed_us = g_get_monotonic_time() - devc->start_us; | |
597 | limit_us = 1000 * devc->limit_msec; | |
598 | if (limit_us > 0 && limit_us < elapsed_us) | |
599 | todo_us = MAX(0, limit_us - devc->spent_us); | |
600 | else | |
601 | todo_us = MAX(0, elapsed_us - devc->spent_us); | |
602 | ||
603 | /* How many samples are outstanding since the last round? */ | |
604 | samples_todo = (todo_us * devc->cur_samplerate + G_USEC_PER_SEC - 1) | |
605 | / G_USEC_PER_SEC; | |
606 | ||
607 | if (devc->limit_samples > 0) { | |
608 | if (devc->limit_samples < devc->sent_samples) | |
609 | samples_todo = 0; | |
610 | else if (devc->limit_samples - devc->sent_samples < samples_todo) | |
611 | samples_todo = devc->limit_samples - devc->sent_samples; | |
612 | } | |
613 | ||
614 | if (samples_todo == 0) | |
615 | return G_SOURCE_CONTINUE; | |
616 | ||
617 | if (devc->limit_frames) { | |
618 | /* Never send more samples than a frame can fit... */ | |
619 | samples_todo = MIN(samples_todo, SAMPLES_PER_FRAME); | |
620 | /* ...or than we need to finish the current frame. */ | |
621 | samples_todo = MIN(samples_todo, | |
622 | SAMPLES_PER_FRAME - devc->sent_frame_samples); | |
623 | } | |
624 | ||
625 | /* Calculate the actual time covered by this run back from the sample | |
626 | * count, rounded towards zero. This avoids getting stuck on a too-low | |
627 | * time delta with no samples being sent due to round-off. | |
628 | */ | |
629 | todo_us = samples_todo * G_USEC_PER_SEC / devc->cur_samplerate; | |
630 | ||
631 | logic_done = devc->num_logic_channels > 0 ? 0 : samples_todo; | |
632 | if (!devc->enabled_logic_channels) | |
633 | logic_done = samples_todo; | |
634 | ||
635 | analog_done = devc->num_analog_channels > 0 ? 0 : samples_todo; | |
636 | if (!devc->enabled_analog_channels) | |
637 | analog_done = samples_todo; | |
638 | ||
639 | while (logic_done < samples_todo || analog_done < samples_todo) { | |
640 | /* Logic */ | |
641 | if (logic_done < samples_todo) { | |
642 | sending_now = MIN(samples_todo - logic_done, | |
643 | LOGIC_BUFSIZE / devc->logic_unitsize); | |
644 | logic_generator(sdi, sending_now * devc->logic_unitsize); | |
645 | /* Check for trigger and send pre-trigger data if needed */ | |
646 | if (devc->stl && (!devc->trigger_fired)) { | |
647 | trigger_offset = soft_trigger_logic_check(devc->stl, | |
648 | devc->logic_data, sending_now * devc->logic_unitsize, | |
649 | &pre_trigger_samples); | |
650 | if (trigger_offset > -1) { | |
651 | devc->trigger_fired = TRUE; | |
652 | logic_done = pre_trigger_samples; | |
653 | } | |
654 | } else | |
655 | trigger_offset = 0; | |
656 | ||
657 | /* Send logic samples if needed */ | |
658 | packet.type = SR_DF_LOGIC; | |
659 | packet.payload = &logic; | |
660 | logic.unitsize = devc->logic_unitsize; | |
661 | ||
662 | if (devc->stl) { | |
663 | if (devc->trigger_fired && (trigger_offset < (int)sending_now)) { | |
664 | /* Send after-trigger data */ | |
665 | logic.length = (sending_now - trigger_offset) * devc->logic_unitsize; | |
666 | logic.data = devc->logic_data + trigger_offset * devc->logic_unitsize; | |
667 | logic_fixup_feed(devc, &logic); | |
668 | sr_session_send(sdi, &packet); | |
669 | logic_done += sending_now - trigger_offset; | |
670 | /* End acquisition */ | |
671 | sr_dbg("Triggered, stopping acquisition."); | |
672 | sr_dev_acquisition_stop(sdi); | |
673 | break; | |
674 | } else { | |
675 | /* Send nothing */ | |
676 | logic_done += sending_now; | |
677 | } | |
678 | } else if (!devc->stl) { | |
679 | /* No trigger defined, send logic samples */ | |
680 | logic.length = sending_now * devc->logic_unitsize; | |
681 | logic.data = devc->logic_data; | |
682 | logic_fixup_feed(devc, &logic); | |
683 | sr_session_send(sdi, &packet); | |
684 | logic_done += sending_now; | |
685 | } | |
686 | } | |
687 | ||
688 | /* Analog, one channel at a time */ | |
689 | if (analog_done < samples_todo) { | |
690 | analog_sent = 0; | |
691 | ||
692 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
693 | while (g_hash_table_iter_next(&iter, NULL, &value)) { | |
694 | send_analog_packet(value, sdi, &analog_sent, | |
695 | devc->sent_samples + analog_done, | |
696 | samples_todo - analog_done); | |
697 | } | |
698 | analog_done += analog_sent; | |
699 | } | |
700 | } | |
701 | ||
702 | uint64_t min = MIN(logic_done, analog_done); | |
703 | devc->sent_samples += min; | |
704 | devc->sent_frame_samples += min; | |
705 | devc->spent_us += todo_us; | |
706 | ||
707 | if (devc->limit_frames && devc->sent_frame_samples >= SAMPLES_PER_FRAME) { | |
708 | std_session_send_frame_end(sdi); | |
709 | devc->sent_frame_samples = 0; | |
710 | devc->limit_frames--; | |
711 | if (!devc->limit_frames) { | |
712 | sr_dbg("Requested number of frames reached."); | |
713 | sr_dev_acquisition_stop(sdi); | |
714 | } | |
715 | } | |
716 | ||
717 | if ((devc->limit_samples > 0 && devc->sent_samples >= devc->limit_samples) | |
718 | || (limit_us > 0 && devc->spent_us >= limit_us)) { | |
719 | ||
720 | /* If we're averaging everything - now is the time to send data */ | |
721 | if (devc->avg && devc->avg_samples == 0) { | |
722 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
723 | while (g_hash_table_iter_next(&iter, NULL, &value)) { | |
724 | ag = value; | |
725 | packet.type = SR_DF_ANALOG; | |
726 | packet.payload = &ag->packet; | |
727 | ag->packet.data = &ag->avg_val; | |
728 | ag->packet.num_samples = 1; | |
729 | sr_session_send(sdi, &packet); | |
730 | } | |
731 | } | |
732 | sr_dbg("Requested number of samples reached."); | |
733 | sr_dev_acquisition_stop(sdi); | |
734 | } else if (devc->limit_frames) { | |
735 | if (devc->sent_frame_samples == 0) | |
736 | std_session_send_frame_begin(sdi); | |
737 | } | |
738 | ||
739 | return G_SOURCE_CONTINUE; | |
740 | } |