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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> | |
94f364ec | 8 | * Copyright (C) 2019 Frank Stettner <frank-stettner@gmx.net> |
ba508e22 UH |
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 | |
2ea1fdf1 | 21 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
ba508e22 UH |
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 | ||
81d53a29 GS |
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 | ||
a6e5d2f6 | 176 | SR_PRIV void demo_generate_analog_pattern(struct dev_context *devc) |
ba508e22 UH |
177 | { |
178 | double t, frequency; | |
a6e5d2f6 FS |
179 | float amplitude, offset; |
180 | struct analog_pattern *pattern; | |
ba508e22 | 181 | unsigned int num_samples, i; |
a6e5d2f6 | 182 | float value; |
ba508e22 UH |
183 | int last_end; |
184 | ||
ba508e22 | 185 | num_samples = ANALOG_BUFSIZE / sizeof(float); |
a6e5d2f6 FS |
186 | frequency = (double) devc->cur_samplerate / ANALOG_SAMPLES_PER_PERIOD; |
187 | amplitude = DEFAULT_ANALOG_AMPLITUDE; | |
188 | offset = DEFAULT_ANALOG_OFFSET; | |
189 | ||
190 | /* FIXME we actually need only one period. A ringbuffer would be | |
191 | * useful here. */ | |
192 | /* Make sure the number of samples we put out is an integer | |
193 | * multiple of our period size */ | |
194 | ||
195 | /* PATTERN_SQUARE */ | |
196 | sr_dbg("Generating %s pattern.", analog_pattern_str[PATTERN_SQUARE]); | |
197 | pattern = g_malloc(sizeof(struct analog_pattern)); | |
198 | value = amplitude; | |
199 | last_end = 0; | |
200 | for (i = 0; i < num_samples; i++) { | |
201 | if (i % 5 == 0) | |
202 | value = -value; | |
203 | if (i % 10 == 0) | |
204 | last_end = i; | |
205 | pattern->data[i] = value + offset; | |
ba508e22 | 206 | } |
a6e5d2f6 FS |
207 | pattern->num_samples = last_end; |
208 | devc->analog_patterns[PATTERN_SQUARE] = pattern; | |
209 | ||
210 | /* Readjusting num_samples for all other patterns */ | |
211 | while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0) | |
212 | num_samples--; | |
213 | ||
214 | /* PATTERN_SINE: */ | |
215 | sr_dbg("Generating %s pattern.", analog_pattern_str[PATTERN_SINE]); | |
216 | pattern = g_malloc(sizeof(struct analog_pattern)); | |
217 | for (i = 0; i < num_samples; i++) { | |
218 | t = (double) i / (double) devc->cur_samplerate; | |
219 | pattern->data[i] = sin(2 * G_PI * frequency * t) * amplitude + offset; | |
220 | } | |
221 | pattern->num_samples = last_end; | |
222 | devc->analog_patterns[PATTERN_SINE] = pattern; | |
223 | ||
224 | /* PATTERN_TRIANGLE: */ | |
225 | sr_dbg("Generating %s pattern.", analog_pattern_str[PATTERN_TRIANGLE]); | |
226 | pattern = g_malloc(sizeof(struct analog_pattern)); | |
227 | for (i = 0; i < num_samples; i++) { | |
228 | t = (double) i / (double) devc->cur_samplerate; | |
229 | pattern->data[i] = (2 / G_PI) * asin(sin(2 * G_PI * frequency * t)) * | |
230 | amplitude + offset; | |
231 | } | |
232 | pattern->num_samples = last_end; | |
233 | devc->analog_patterns[PATTERN_TRIANGLE] = pattern; | |
234 | ||
235 | /* PATTERN_SAWTOOTH: */ | |
236 | sr_dbg("Generating %s pattern.", analog_pattern_str[PATTERN_SAWTOOTH]); | |
237 | pattern = g_malloc(sizeof(struct analog_pattern)); | |
238 | for (i = 0; i < num_samples; i++) { | |
239 | t = (double) i / (double) devc->cur_samplerate; | |
240 | pattern->data[i] = 2 * ((t * frequency) - floor(0.5f + t * frequency)) * | |
241 | amplitude + offset; | |
242 | } | |
243 | pattern->num_samples = last_end; | |
244 | devc->analog_patterns[PATTERN_SAWTOOTH] = pattern; | |
ba508e22 UH |
245 | } |
246 | ||
03733430 GS |
247 | static uint64_t encode_number_to_gray(uint64_t nr) |
248 | { | |
249 | return nr ^ (nr >> 1); | |
250 | } | |
251 | ||
252 | static void set_logic_data(uint64_t bits, uint8_t *data, size_t len) | |
253 | { | |
254 | while (len--) { | |
255 | *data++ = bits & 0xff; | |
256 | bits >>= 8; | |
257 | } | |
258 | } | |
259 | ||
ba508e22 UH |
260 | static void logic_generator(struct sr_dev_inst *sdi, uint64_t size) |
261 | { | |
262 | struct dev_context *devc; | |
263 | uint64_t i, j; | |
264 | uint8_t pat; | |
81d53a29 GS |
265 | uint8_t *sample; |
266 | const uint8_t *image_col; | |
267 | size_t col_count, col_height; | |
03733430 | 268 | uint64_t gray; |
ba508e22 UH |
269 | |
270 | devc = sdi->priv; | |
271 | ||
272 | switch (devc->logic_pattern) { | |
273 | case PATTERN_SIGROK: | |
274 | memset(devc->logic_data, 0x00, size); | |
275 | for (i = 0; i < size; i += devc->logic_unitsize) { | |
276 | for (j = 0; j < devc->logic_unitsize; j++) { | |
277 | pat = pattern_sigrok[(devc->step + j) % sizeof(pattern_sigrok)] >> 1; | |
278 | devc->logic_data[i + j] = ~pat; | |
279 | } | |
280 | devc->step++; | |
281 | } | |
282 | break; | |
283 | case PATTERN_RANDOM: | |
284 | for (i = 0; i < size; i++) | |
285 | devc->logic_data[i] = (uint8_t)(rand() & 0xff); | |
286 | break; | |
287 | case PATTERN_INC: | |
288 | for (i = 0; i < size; i++) { | |
8ebad343 | 289 | for (j = 0; j < devc->logic_unitsize; j++) |
ba508e22 | 290 | devc->logic_data[i + j] = devc->step; |
ba508e22 UH |
291 | devc->step++; |
292 | } | |
293 | break; | |
845060fa SA |
294 | case PATTERN_WALKING_ONE: |
295 | /* j contains the value of the highest bit */ | |
d1078180 | 296 | j = 1 << (devc->num_logic_channels - 1); |
845060fa SA |
297 | for (i = 0; i < size; i++) { |
298 | devc->logic_data[i] = devc->step; | |
299 | if (devc->step == 0) | |
300 | devc->step = 1; | |
301 | else | |
302 | if (devc->step == j) | |
303 | devc->step = 0; | |
304 | else | |
305 | devc->step <<= 1; | |
306 | } | |
307 | break; | |
308 | case PATTERN_WALKING_ZERO: | |
309 | /* Same as walking one, only with inverted output */ | |
310 | /* j contains the value of the highest bit */ | |
d1078180 | 311 | j = 1 << (devc->num_logic_channels - 1); |
845060fa SA |
312 | for (i = 0; i < size; i++) { |
313 | devc->logic_data[i] = ~devc->step; | |
314 | if (devc->step == 0) | |
315 | devc->step = 1; | |
316 | else | |
317 | if (devc->step == j) | |
318 | devc->step = 0; | |
319 | else | |
320 | devc->step <<= 1; | |
321 | } | |
322 | break; | |
ba508e22 UH |
323 | case PATTERN_ALL_LOW: |
324 | case PATTERN_ALL_HIGH: | |
325 | /* These were set when the pattern mode was selected. */ | |
326 | break; | |
81d53a29 GS |
327 | case PATTERN_SQUID: |
328 | memset(devc->logic_data, 0x00, size); | |
329 | col_count = ARRAY_SIZE(pattern_squid); | |
330 | col_height = ARRAY_SIZE(pattern_squid[0]); | |
331 | for (i = 0; i < size; i += devc->logic_unitsize) { | |
332 | sample = &devc->logic_data[i]; | |
333 | image_col = pattern_squid[devc->step]; | |
334 | for (j = 0; j < devc->logic_unitsize; j++) { | |
335 | pat = image_col[j % col_height]; | |
336 | sample[j] = pat; | |
337 | } | |
338 | devc->step++; | |
339 | devc->step %= col_count; | |
340 | } | |
341 | break; | |
03733430 GS |
342 | case PATTERN_GRAYCODE: |
343 | for (i = 0; i < size; i += devc->logic_unitsize) { | |
344 | devc->step++; | |
345 | devc->step &= devc->all_logic_channels_mask; | |
346 | gray = encode_number_to_gray(devc->step); | |
347 | gray &= devc->all_logic_channels_mask; | |
348 | set_logic_data(gray, &devc->logic_data[i], devc->logic_unitsize); | |
349 | } | |
350 | break; | |
ba508e22 UH |
351 | default: |
352 | sr_err("Unknown pattern: %d.", devc->logic_pattern); | |
353 | break; | |
354 | } | |
355 | } | |
356 | ||
4a465510 GS |
357 | /* |
358 | * Fixup a memory image of generated logic data before it gets sent to | |
359 | * the session's datafeed. Mask out content from disabled channels. | |
360 | * | |
361 | * TODO: Need we apply a channel map, and enforce a dense representation | |
362 | * of the enabled channels' data? | |
363 | */ | |
364 | static void logic_fixup_feed(struct dev_context *devc, | |
365 | struct sr_datafeed_logic *logic) | |
366 | { | |
367 | size_t fp_off; | |
368 | uint8_t fp_mask; | |
369 | size_t off, idx; | |
370 | uint8_t *sample; | |
371 | ||
372 | fp_off = devc->first_partial_logic_index; | |
373 | fp_mask = devc->first_partial_logic_mask; | |
374 | if (fp_off == logic->unitsize) | |
375 | return; | |
376 | ||
377 | for (off = 0; off < logic->length; off += logic->unitsize) { | |
378 | sample = logic->data + off; | |
379 | sample[fp_off] &= fp_mask; | |
380 | for (idx = fp_off + 1; idx < logic->unitsize; idx++) | |
381 | sample[idx] = 0x00; | |
382 | } | |
383 | } | |
384 | ||
ba508e22 UH |
385 | static void send_analog_packet(struct analog_gen *ag, |
386 | struct sr_dev_inst *sdi, uint64_t *analog_sent, | |
387 | uint64_t analog_pos, uint64_t analog_todo) | |
388 | { | |
389 | struct sr_datafeed_packet packet; | |
390 | struct dev_context *devc; | |
a6e5d2f6 | 391 | struct analog_pattern *pattern; |
ba508e22 UH |
392 | uint64_t sending_now, to_avg; |
393 | int ag_pattern_pos; | |
394 | unsigned int i; | |
a6e5d2f6 FS |
395 | float amplitude, offset, value; |
396 | float *data; | |
ba508e22 | 397 | |
01f2adb0 GS |
398 | if (!ag->ch || !ag->ch->enabled) |
399 | return; | |
400 | ||
ba508e22 UH |
401 | devc = sdi->priv; |
402 | packet.type = SR_DF_ANALOG; | |
403 | packet.payload = &ag->packet; | |
404 | ||
a6e5d2f6 FS |
405 | pattern = devc->analog_patterns[ag->pattern]; |
406 | ||
94f364ec FS |
407 | ag->packet.meaning->channels = g_slist_append(NULL, ag->ch); |
408 | ag->packet.meaning->mq = ag->mq; | |
409 | ag->packet.meaning->mqflags = ag->mq_flags; | |
410 | ||
411 | /* Set a unit for the given quantity */ | |
412 | if (ag->mq == SR_MQ_VOLTAGE) | |
413 | ag->packet.meaning->unit = SR_UNIT_VOLT; | |
414 | else if (ag->mq == SR_MQ_CURRENT) | |
415 | ag->packet.meaning->unit = SR_UNIT_AMPERE; | |
416 | else if (ag->mq == SR_MQ_RESISTANCE) | |
417 | ag->packet.meaning->unit = SR_UNIT_OHM; | |
418 | else if (ag->mq == SR_MQ_CAPACITANCE) | |
419 | ag->packet.meaning->unit = SR_UNIT_FARAD; | |
420 | else if (ag->mq == SR_MQ_TEMPERATURE) | |
421 | ag->packet.meaning->unit = SR_UNIT_CELSIUS; | |
422 | else if (ag->mq == SR_MQ_FREQUENCY) | |
423 | ag->packet.meaning->unit = SR_UNIT_HERTZ; | |
424 | else if (ag->mq == SR_MQ_DUTY_CYCLE) | |
425 | ag->packet.meaning->unit = SR_UNIT_PERCENTAGE; | |
426 | else if (ag->mq == SR_MQ_CONTINUITY) | |
427 | ag->packet.meaning->unit = SR_UNIT_OHM; | |
428 | else if (ag->mq == SR_MQ_PULSE_WIDTH) | |
429 | ag->packet.meaning->unit = SR_UNIT_PERCENTAGE; | |
430 | else if (ag->mq == SR_MQ_CONDUCTANCE) | |
431 | ag->packet.meaning->unit = SR_UNIT_SIEMENS; | |
432 | else if (ag->mq == SR_MQ_POWER) | |
433 | ag->packet.meaning->unit = SR_UNIT_WATT; | |
434 | else if (ag->mq == SR_MQ_GAIN) | |
435 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
436 | else if (ag->mq == SR_MQ_SOUND_PRESSURE_LEVEL) | |
437 | ag->packet.meaning->unit = SR_UNIT_DECIBEL_SPL; | |
438 | else if (ag->mq == SR_MQ_CARBON_MONOXIDE) | |
439 | ag->packet.meaning->unit = SR_UNIT_CONCENTRATION; | |
440 | else if (ag->mq == SR_MQ_RELATIVE_HUMIDITY) | |
441 | ag->packet.meaning->unit = SR_UNIT_HUMIDITY_293K; | |
442 | else if (ag->mq == SR_MQ_TIME) | |
443 | ag->packet.meaning->unit = SR_UNIT_SECOND; | |
444 | else if (ag->mq == SR_MQ_WIND_SPEED) | |
445 | ag->packet.meaning->unit = SR_UNIT_METER_SECOND; | |
446 | else if (ag->mq == SR_MQ_PRESSURE) | |
447 | ag->packet.meaning->unit = SR_UNIT_HECTOPASCAL; | |
448 | else if (ag->mq == SR_MQ_PARALLEL_INDUCTANCE) | |
449 | ag->packet.meaning->unit = SR_UNIT_HENRY; | |
450 | else if (ag->mq == SR_MQ_PARALLEL_CAPACITANCE) | |
451 | ag->packet.meaning->unit = SR_UNIT_FARAD; | |
452 | else if (ag->mq == SR_MQ_PARALLEL_RESISTANCE) | |
453 | ag->packet.meaning->unit = SR_UNIT_OHM; | |
454 | else if (ag->mq == SR_MQ_SERIES_INDUCTANCE) | |
455 | ag->packet.meaning->unit = SR_UNIT_HENRY; | |
456 | else if (ag->mq == SR_MQ_SERIES_CAPACITANCE) | |
457 | ag->packet.meaning->unit = SR_UNIT_FARAD; | |
458 | else if (ag->mq == SR_MQ_SERIES_RESISTANCE) | |
459 | ag->packet.meaning->unit = SR_UNIT_OHM; | |
460 | else if (ag->mq == SR_MQ_DISSIPATION_FACTOR) | |
461 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
462 | else if (ag->mq == SR_MQ_QUALITY_FACTOR) | |
463 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
464 | else if (ag->mq == SR_MQ_PHASE_ANGLE) | |
465 | ag->packet.meaning->unit = SR_UNIT_DEGREE; | |
466 | else if (ag->mq == SR_MQ_DIFFERENCE) | |
467 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
468 | else if (ag->mq == SR_MQ_COUNT) | |
469 | ag->packet.meaning->unit = SR_UNIT_PIECE; | |
470 | else if (ag->mq == SR_MQ_POWER_FACTOR) | |
471 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
472 | else if (ag->mq == SR_MQ_APPARENT_POWER) | |
473 | ag->packet.meaning->unit = SR_UNIT_VOLT_AMPERE; | |
474 | else if (ag->mq == SR_MQ_MASS) | |
475 | ag->packet.meaning->unit = SR_UNIT_GRAM; | |
476 | else if (ag->mq == SR_MQ_HARMONIC_RATIO) | |
477 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
478 | else | |
479 | ag->packet.meaning->unit = SR_UNIT_UNITLESS; | |
480 | ||
ba508e22 | 481 | if (!devc->avg) { |
a6e5d2f6 FS |
482 | ag_pattern_pos = analog_pos % pattern->num_samples; |
483 | sending_now = MIN(analog_todo, pattern->num_samples - ag_pattern_pos); | |
484 | if (ag->amplitude != DEFAULT_ANALOG_AMPLITUDE || | |
485 | ag->offset != DEFAULT_ANALOG_OFFSET) { | |
486 | ||
487 | /* Amplitude or offset changed, modify each sample */ | |
488 | amplitude = ag->amplitude / DEFAULT_ANALOG_AMPLITUDE; | |
489 | offset = ag->offset - DEFAULT_ANALOG_OFFSET; | |
490 | data = ag->packet.data; | |
491 | for (i = 0; i < sending_now; i++) { | |
492 | data[i] = pattern->data[ag_pattern_pos + i] * amplitude + offset; | |
493 | } | |
494 | } else { | |
495 | /* Amplitude and offset not changed, use the fast way */ | |
496 | ag->packet.data = pattern->data + ag_pattern_pos; | |
497 | } | |
ba508e22 UH |
498 | ag->packet.num_samples = sending_now; |
499 | sr_session_send(sdi, &packet); | |
500 | ||
501 | /* Whichever channel group gets there first. */ | |
502 | *analog_sent = MAX(*analog_sent, sending_now); | |
503 | } else { | |
a6e5d2f6 FS |
504 | ag_pattern_pos = analog_pos % pattern->num_samples; |
505 | to_avg = MIN(analog_todo, pattern->num_samples - ag_pattern_pos); | |
506 | amplitude = ag->amplitude / DEFAULT_ANALOG_AMPLITUDE; | |
507 | offset = ag->offset - DEFAULT_ANALOG_OFFSET; | |
ba508e22 UH |
508 | |
509 | for (i = 0; i < to_avg; i++) { | |
a6e5d2f6 FS |
510 | value = *(pattern->data + ag_pattern_pos + i) * amplitude + offset; |
511 | ag->avg_val = (ag->avg_val + value) / 2; | |
ba508e22 UH |
512 | ag->num_avgs++; |
513 | /* Time to send averaged data? */ | |
d1078180 | 514 | if ((devc->avg_samples > 0) && (ag->num_avgs >= devc->avg_samples)) |
ba508e22 UH |
515 | goto do_send; |
516 | } | |
517 | ||
518 | if (devc->avg_samples == 0) { | |
a6e5d2f6 FS |
519 | /* |
520 | * We're averaging all the samples, so wait with | |
ba508e22 UH |
521 | * sending until the very end. |
522 | */ | |
523 | *analog_sent = ag->num_avgs; | |
524 | return; | |
525 | } | |
526 | ||
527 | do_send: | |
528 | ag->packet.data = &ag->avg_val; | |
529 | ag->packet.num_samples = 1; | |
530 | ||
531 | sr_session_send(sdi, &packet); | |
532 | *analog_sent = ag->num_avgs; | |
533 | ||
534 | ag->num_avgs = 0; | |
535 | ag->avg_val = 0.0f; | |
536 | } | |
537 | } | |
538 | ||
539 | /* Callback handling data */ | |
540 | SR_PRIV int demo_prepare_data(int fd, int revents, void *cb_data) | |
541 | { | |
542 | struct sr_dev_inst *sdi; | |
543 | struct dev_context *devc; | |
544 | struct sr_datafeed_packet packet; | |
545 | struct sr_datafeed_logic logic; | |
546 | struct analog_gen *ag; | |
547 | GHashTableIter iter; | |
548 | void *value; | |
549 | uint64_t samples_todo, logic_done, analog_done, analog_sent, sending_now; | |
550 | int64_t elapsed_us, limit_us, todo_us; | |
6fc51fb1 | 551 | int64_t trigger_offset; |
552 | int pre_trigger_samples; | |
ba508e22 UH |
553 | |
554 | (void)fd; | |
555 | (void)revents; | |
556 | ||
557 | sdi = cb_data; | |
558 | devc = sdi->priv; | |
559 | ||
560 | /* Just in case. */ | |
561 | if (devc->cur_samplerate <= 0 | |
562 | || (devc->num_logic_channels <= 0 | |
563 | && devc->num_analog_channels <= 0)) { | |
d2f7c417 | 564 | sr_dev_acquisition_stop(sdi); |
ba508e22 UH |
565 | return G_SOURCE_CONTINUE; |
566 | } | |
567 | ||
568 | /* What time span should we send samples for? */ | |
569 | elapsed_us = g_get_monotonic_time() - devc->start_us; | |
570 | limit_us = 1000 * devc->limit_msec; | |
571 | if (limit_us > 0 && limit_us < elapsed_us) | |
572 | todo_us = MAX(0, limit_us - devc->spent_us); | |
573 | else | |
574 | todo_us = MAX(0, elapsed_us - devc->spent_us); | |
575 | ||
576 | /* How many samples are outstanding since the last round? */ | |
577 | samples_todo = (todo_us * devc->cur_samplerate + G_USEC_PER_SEC - 1) | |
578 | / G_USEC_PER_SEC; | |
f55bea76 | 579 | |
ba508e22 UH |
580 | if (devc->limit_samples > 0) { |
581 | if (devc->limit_samples < devc->sent_samples) | |
582 | samples_todo = 0; | |
583 | else if (devc->limit_samples - devc->sent_samples < samples_todo) | |
584 | samples_todo = devc->limit_samples - devc->sent_samples; | |
585 | } | |
f55bea76 | 586 | |
767ca135 SA |
587 | if (samples_todo == 0) |
588 | return G_SOURCE_CONTINUE; | |
589 | ||
fb193945 GS |
590 | if (devc->limit_frames) { |
591 | /* Never send more samples than a frame can fit... */ | |
592 | samples_todo = MIN(samples_todo, SAMPLES_PER_FRAME); | |
593 | /* ...or than we need to finish the current frame. */ | |
594 | samples_todo = MIN(samples_todo, | |
595 | SAMPLES_PER_FRAME - devc->sent_frame_samples); | |
596 | } | |
767ca135 | 597 | |
ba508e22 UH |
598 | /* Calculate the actual time covered by this run back from the sample |
599 | * count, rounded towards zero. This avoids getting stuck on a too-low | |
600 | * time delta with no samples being sent due to round-off. | |
601 | */ | |
602 | todo_us = samples_todo * G_USEC_PER_SEC / devc->cur_samplerate; | |
603 | ||
405b9c10 | 604 | logic_done = devc->num_logic_channels > 0 ? 0 : samples_todo; |
1b7b72d4 GS |
605 | if (!devc->enabled_logic_channels) |
606 | logic_done = samples_todo; | |
d1078180 | 607 | |
ba508e22 | 608 | analog_done = devc->num_analog_channels > 0 ? 0 : samples_todo; |
1b7b72d4 GS |
609 | if (!devc->enabled_analog_channels) |
610 | analog_done = samples_todo; | |
d1078180 | 611 | |
ba508e22 UH |
612 | while (logic_done < samples_todo || analog_done < samples_todo) { |
613 | /* Logic */ | |
614 | if (logic_done < samples_todo) { | |
615 | sending_now = MIN(samples_todo - logic_done, | |
616 | LOGIC_BUFSIZE / devc->logic_unitsize); | |
617 | logic_generator(sdi, sending_now * devc->logic_unitsize); | |
d1078180 SA |
618 | /* Check for trigger and send pre-trigger data if needed */ |
619 | if (devc->stl && (!devc->trigger_fired)) { | |
6fc51fb1 | 620 | trigger_offset = soft_trigger_logic_check(devc->stl, |
d1078180 | 621 | devc->logic_data, sending_now * devc->logic_unitsize, |
6fc51fb1 | 622 | &pre_trigger_samples); |
d1078180 | 623 | if (trigger_offset > -1) { |
6fc51fb1 | 624 | devc->trigger_fired = TRUE; |
625 | logic_done = pre_trigger_samples; | |
d1078180 | 626 | } |
6fc51fb1 | 627 | } else |
628 | trigger_offset = 0; | |
629 | ||
d1078180 SA |
630 | /* Send logic samples if needed */ |
631 | packet.type = SR_DF_LOGIC; | |
632 | packet.payload = &logic; | |
633 | logic.unitsize = devc->logic_unitsize; | |
634 | ||
635 | if (devc->stl) { | |
636 | if (devc->trigger_fired && (trigger_offset < (int)sending_now)) { | |
637 | /* Send after-trigger data */ | |
638 | logic.length = (sending_now - trigger_offset) * devc->logic_unitsize; | |
639 | logic.data = devc->logic_data + trigger_offset * devc->logic_unitsize; | |
640 | logic_fixup_feed(devc, &logic); | |
641 | sr_session_send(sdi, &packet); | |
642 | logic_done += sending_now - trigger_offset; | |
643 | /* End acquisition */ | |
644 | sr_dbg("Triggered, stopping acquisition."); | |
645 | sr_dev_acquisition_stop(sdi); | |
646 | break; | |
647 | } else { | |
648 | /* Send nothing */ | |
649 | logic_done += sending_now; | |
650 | } | |
651 | } else if (!devc->stl) { | |
652 | /* No trigger defined, send logic samples */ | |
653 | logic.length = sending_now * devc->logic_unitsize; | |
654 | logic.data = devc->logic_data; | |
6fc51fb1 | 655 | logic_fixup_feed(devc, &logic); |
656 | sr_session_send(sdi, &packet); | |
d1078180 | 657 | logic_done += sending_now; |
6fc51fb1 | 658 | } |
ba508e22 UH |
659 | } |
660 | ||
661 | /* Analog, one channel at a time */ | |
d1078180 | 662 | if (analog_done < samples_todo) { |
ba508e22 UH |
663 | analog_sent = 0; |
664 | ||
665 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
666 | while (g_hash_table_iter_next(&iter, NULL, &value)) { | |
667 | send_analog_packet(value, sdi, &analog_sent, | |
668 | devc->sent_samples + analog_done, | |
669 | samples_todo - analog_done); | |
670 | } | |
671 | analog_done += analog_sent; | |
672 | } | |
673 | } | |
6fc51fb1 | 674 | |
675 | uint64_t min = MIN(logic_done, analog_done); | |
676 | devc->sent_samples += min; | |
677 | devc->sent_frame_samples += min; | |
ba508e22 UH |
678 | devc->spent_us += todo_us; |
679 | ||
fb193945 | 680 | if (devc->limit_frames && devc->sent_frame_samples >= SAMPLES_PER_FRAME) { |
767ca135 SA |
681 | std_session_send_frame_end(sdi); |
682 | devc->sent_frame_samples = 0; | |
fb193945 GS |
683 | devc->limit_frames--; |
684 | if (!devc->limit_frames) { | |
685 | sr_dbg("Requested number of frames reached."); | |
686 | sr_dev_acquisition_stop(sdi); | |
687 | } | |
767ca135 | 688 | } |
767ca135 | 689 | |
ba508e22 UH |
690 | if ((devc->limit_samples > 0 && devc->sent_samples >= devc->limit_samples) |
691 | || (limit_us > 0 && devc->spent_us >= limit_us)) { | |
692 | ||
693 | /* If we're averaging everything - now is the time to send data */ | |
d1144645 | 694 | if (devc->avg && devc->avg_samples == 0) { |
ba508e22 UH |
695 | g_hash_table_iter_init(&iter, devc->ch_ag); |
696 | while (g_hash_table_iter_next(&iter, NULL, &value)) { | |
697 | ag = value; | |
698 | packet.type = SR_DF_ANALOG; | |
699 | packet.payload = &ag->packet; | |
700 | ag->packet.data = &ag->avg_val; | |
701 | ag->packet.num_samples = 1; | |
702 | sr_session_send(sdi, &packet); | |
703 | } | |
704 | } | |
705 | sr_dbg("Requested number of samples reached."); | |
d2f7c417 | 706 | sr_dev_acquisition_stop(sdi); |
fb193945 | 707 | } else if (devc->limit_frames) { |
767ca135 | 708 | if (devc->sent_frame_samples == 0) |
f55bea76 | 709 | std_session_send_frame_begin(sdi); |
ba508e22 UH |
710 | } |
711 | ||
712 | return G_SOURCE_CONTINUE; | |
713 | } |