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34e4813f BV |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
c73d2ea4 | 4 | * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com> |
34e4813f BV |
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> | |
45c59c8b BV |
26 | #include "libsigrok.h" |
27 | #include "libsigrok-internal.h" | |
34e4813f | 28 | |
8ff6afc9 | 29 | #define CHUNKSIZE (512 * 1024) |
13a12913 BV |
30 | #define DEFAULT_NUM_PROBES 8 |
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 | 42 | { |
464d12c7 | 43 | int num_probes, i; |
c37d2b1b | 44 | char name[SR_MAX_PROBENAME_LEN + 1]; |
13a12913 BV |
45 | |
46 | if (in->param && in->param[0]) { | |
47 | num_probes = strtoul(in->param, NULL, 10); | |
48 | if (num_probes < 1) | |
e46b8fb1 | 49 | return SR_ERR; |
c37d2b1b | 50 | } else { |
13a12913 | 51 | num_probes = DEFAULT_NUM_PROBES; |
c37d2b1b | 52 | } |
13a12913 | 53 | |
c37d2b1b | 54 | /* Create a virtual device. */ |
bb7ef793 | 55 | in->vdev = sr_dev_new(NULL, 0); |
464d12c7 | 56 | |
c37d2b1b | 57 | for (i = 0; i < num_probes; i++) { |
464d12c7 | 58 | snprintf(name, SR_MAX_PROBENAME_LEN, "%d", i); |
c37d2b1b | 59 | /* TODO: Check return value. */ |
bb7ef793 | 60 | sr_dev_probe_add(in->vdev, name); |
464d12c7 | 61 | } |
13a12913 | 62 | |
e46b8fb1 | 63 | return SR_OK; |
13a12913 BV |
64 | } |
65 | ||
f50f3f40 | 66 | static int loadfile(struct sr_input *in, const char *filename) |
34e4813f | 67 | { |
b9c735a2 UH |
68 | struct sr_datafeed_header header; |
69 | struct sr_datafeed_packet packet; | |
f366e86c | 70 | struct sr_datafeed_meta_logic meta; |
9c939c51 BV |
71 | struct sr_datafeed_logic logic; |
72 | unsigned char buffer[CHUNKSIZE]; | |
db91a1c3 | 73 | int fd, size, num_probes; |
34e4813f | 74 | |
757b8c62 | 75 | if ((fd = open(filename, O_RDONLY)) == -1) |
e46b8fb1 | 76 | return SR_ERR; |
34e4813f | 77 | |
bb7ef793 | 78 | num_probes = g_slist_length(in->vdev->probes); |
db91a1c3 | 79 | |
13a12913 | 80 | /* send header */ |
34e4813f | 81 | header.feed_version = 1; |
34e4813f | 82 | gettimeofday(&header.starttime, NULL); |
5a2326a7 | 83 | packet.type = SR_DF_HEADER; |
34e4813f | 84 | packet.payload = &header; |
31ccebc4 | 85 | sr_session_send(in->vdev, &packet); |
34e4813f | 86 | |
f366e86c BV |
87 | /* Send metadata about the SR_DF_LOGIC packets to come. */ |
88 | packet.type = SR_DF_META_LOGIC; | |
89 | packet.payload = &meta; | |
90 | meta.samplerate = 0; | |
91 | meta.num_probes = num_probes; | |
92 | sr_session_send(in->vdev, &packet); | |
93 | ||
13a12913 | 94 | /* chop up the input file into chunks and feed it into the session bus */ |
5a2326a7 | 95 | packet.type = SR_DF_LOGIC; |
9c939c51 BV |
96 | packet.payload = &logic; |
97 | logic.unitsize = (num_probes + 7) / 8; | |
98 | logic.data = buffer; | |
757b8c62 | 99 | while ((size = read(fd, buffer, CHUNKSIZE)) > 0) { |
9c939c51 | 100 | logic.length = size; |
31ccebc4 | 101 | sr_session_send(in->vdev, &packet); |
34e4813f BV |
102 | } |
103 | close(fd); | |
104 | ||
13a12913 | 105 | /* end of stream */ |
5a2326a7 | 106 | packet.type = SR_DF_END; |
31ccebc4 | 107 | sr_session_send(in->vdev, &packet); |
34e4813f | 108 | |
e46b8fb1 | 109 | return SR_OK; |
34e4813f BV |
110 | } |
111 | ||
7c1d391c | 112 | SR_PRIV struct sr_input_format input_binary = { |
cdb3573c | 113 | .id = "binary", |
d494a4aa UH |
114 | .description = "Raw binary", |
115 | .format_match = format_match, | |
116 | .init = init, | |
117 | .loadfile = loadfile, | |
34e4813f | 118 | }; |