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34e4813f BV |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2010 Bert Vermeulen <bert@biot.com> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
13a12913 | 20 | #include <stdlib.h> |
34e4813f BV |
21 | #include <sys/types.h> |
22 | #include <sys/stat.h> | |
23 | #include <fcntl.h> | |
24 | #include <unistd.h> | |
25 | #include <sys/time.h> | |
34e4813f BV |
26 | #include <sigrok.h> |
27 | ||
13a12913 BV |
28 | #define CHUNKSIZE 4096 |
29 | #define DEFAULT_NUM_PROBES 8 | |
30 | ||
34e4813f | 31 | |
757b8c62 | 32 | static int format_match(const char *filename) |
34e4813f | 33 | { |
13a12913 | 34 | /* suppress compiler warning */ |
719c5a93 | 35 | (void)filename; |
13a12913 BV |
36 | |
37 | /* this module will handle anything you throw at it */ | |
34e4813f BV |
38 | return TRUE; |
39 | } | |
40 | ||
f50f3f40 | 41 | static int init(struct sr_input *in) |
13a12913 BV |
42 | { |
43 | int num_probes; | |
44 | ||
45 | if (in->param && in->param[0]) { | |
46 | num_probes = strtoul(in->param, NULL, 10); | |
47 | if (num_probes < 1) | |
e46b8fb1 | 48 | return SR_ERR; |
13a12913 BV |
49 | } else |
50 | num_probes = DEFAULT_NUM_PROBES; | |
51 | ||
52 | /* create a virtual device */ | |
2bf4aca6 | 53 | in->vdevice = sr_device_new(NULL, 0, num_probes); |
13a12913 | 54 | |
e46b8fb1 | 55 | return SR_OK; |
13a12913 BV |
56 | } |
57 | ||
f50f3f40 | 58 | static int loadfile(struct sr_input *in, const char *filename) |
34e4813f | 59 | { |
b9c735a2 UH |
60 | struct sr_datafeed_header header; |
61 | struct sr_datafeed_packet packet; | |
9c939c51 BV |
62 | struct sr_datafeed_logic logic; |
63 | unsigned char buffer[CHUNKSIZE]; | |
db91a1c3 | 64 | int fd, size, num_probes; |
34e4813f | 65 | |
757b8c62 | 66 | if ((fd = open(filename, O_RDONLY)) == -1) |
e46b8fb1 | 67 | return SR_ERR; |
34e4813f | 68 | |
13a12913 | 69 | num_probes = g_slist_length(in->vdevice->probes); |
db91a1c3 | 70 | |
13a12913 | 71 | /* send header */ |
34e4813f | 72 | header.feed_version = 1; |
c2616fb9 | 73 | header.num_logic_probes = num_probes; |
13a12913 | 74 | header.num_analog_probes = 0; |
34e4813f BV |
75 | header.samplerate = 0; |
76 | gettimeofday(&header.starttime, NULL); | |
5a2326a7 | 77 | packet.type = SR_DF_HEADER; |
34e4813f | 78 | packet.payload = &header; |
8a2efef2 | 79 | sr_session_bus(in->vdevice, &packet); |
34e4813f | 80 | |
13a12913 | 81 | /* chop up the input file into chunks and feed it into the session bus */ |
5a2326a7 | 82 | packet.type = SR_DF_LOGIC; |
9c939c51 BV |
83 | packet.payload = &logic; |
84 | logic.unitsize = (num_probes + 7) / 8; | |
85 | logic.data = buffer; | |
757b8c62 | 86 | while ((size = read(fd, buffer, CHUNKSIZE)) > 0) { |
9c939c51 | 87 | logic.length = size; |
8a2efef2 | 88 | sr_session_bus(in->vdevice, &packet); |
34e4813f BV |
89 | } |
90 | close(fd); | |
91 | ||
13a12913 | 92 | /* end of stream */ |
5a2326a7 | 93 | packet.type = SR_DF_END; |
8a2efef2 | 94 | sr_session_bus(in->vdevice, &packet); |
34e4813f | 95 | |
e46b8fb1 | 96 | return SR_OK; |
34e4813f BV |
97 | } |
98 | ||
f50f3f40 | 99 | struct sr_input_format input_binary = { |
cdb3573c | 100 | .id = "binary", |
d494a4aa UH |
101 | .description = "Raw binary", |
102 | .format_match = format_match, | |
103 | .init = init, | |
104 | .loadfile = loadfile, | |
34e4813f | 105 | }; |