]>
Commit | Line | Data |
---|---|---|
34e4813f | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
34e4813f | 3 | * |
13d8e03c | 4 | * Copyright (C) 2013 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 | |
3544f848 | 29 | #define LOG_PREFIX "input/binary" |
8e7f1cfd | 30 | |
8ff6afc9 | 31 | #define CHUNKSIZE (512 * 1024) |
3f239f08 | 32 | #define DEFAULT_NUM_CHANNELS 8 |
13a12913 | 33 | |
c506a6a6 | 34 | struct context { |
0d1297a2 | 35 | uint64_t samplerate; |
c506a6a6 TŠ |
36 | }; |
37 | ||
757b8c62 | 38 | static int format_match(const char *filename) |
34e4813f | 39 | { |
719c5a93 | 40 | (void)filename; |
13a12913 | 41 | |
8e7f1cfd | 42 | /* This module will handle anything you throw at it. */ |
34e4813f BV |
43 | return TRUE; |
44 | } | |
45 | ||
543d45c5 | 46 | static int init(struct sr_input *in, const char *filename) |
13a12913 | 47 | { |
ba7dd8bb UH |
48 | struct sr_channel *ch; |
49 | int num_channels, i; | |
3f239f08 | 50 | char name[SR_MAX_CHANNELNAME_LEN + 1]; |
c506a6a6 TŠ |
51 | char *param; |
52 | struct context *ctx; | |
53 | ||
543d45c5 BV |
54 | (void)filename; |
55 | ||
c506a6a6 | 56 | if (!(ctx = g_try_malloc0(sizeof(*ctx)))) { |
8e7f1cfd | 57 | sr_err("Input format context malloc failed."); |
c506a6a6 TŠ |
58 | return SR_ERR_MALLOC; |
59 | } | |
13a12913 | 60 | |
3f239f08 | 61 | num_channels = DEFAULT_NUM_CHANNELS; |
c506a6a6 TŠ |
62 | ctx->samplerate = 0; |
63 | ||
8e7f1cfd | 64 | if (in->param) { |
ba7dd8bb | 65 | param = g_hash_table_lookup(in->param, "numchannels"); |
c506a6a6 | 66 | if (param) { |
ba7dd8bb UH |
67 | num_channels = strtoul(param, NULL, 10); |
68 | if (num_channels < 1) | |
c506a6a6 TŠ |
69 | return SR_ERR; |
70 | } | |
71 | ||
72 | param = g_hash_table_lookup(in->param, "samplerate"); | |
73 | if (param) { | |
0d1297a2 | 74 | if (sr_parse_sizestring(param, &ctx->samplerate) != SR_OK) |
c506a6a6 | 75 | return SR_ERR; |
c506a6a6 | 76 | } |
c37d2b1b | 77 | } |
13a12913 | 78 | |
c37d2b1b | 79 | /* Create a virtual device. */ |
5c3c1241 | 80 | in->sdi = sr_dev_inst_new(0, SR_ST_ACTIVE, NULL, NULL, NULL); |
c506a6a6 | 81 | in->internal = ctx; |
464d12c7 | 82 | |
ba7dd8bb | 83 | for (i = 0; i < num_channels; i++) { |
3f239f08 | 84 | snprintf(name, SR_MAX_CHANNELNAME_LEN, "%d", i); |
c37d2b1b | 85 | /* TODO: Check return value. */ |
3f239f08 | 86 | if (!(ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, name))) |
5c3c1241 | 87 | return SR_ERR; |
ba7dd8bb | 88 | in->sdi->channels = g_slist_append(in->sdi->channels, ch); |
464d12c7 | 89 | } |
13a12913 | 90 | |
e46b8fb1 | 91 | return SR_OK; |
13a12913 BV |
92 | } |
93 | ||
f50f3f40 | 94 | static int loadfile(struct sr_input *in, const char *filename) |
34e4813f | 95 | { |
b9c735a2 | 96 | struct sr_datafeed_packet packet; |
2df1e819 | 97 | struct sr_datafeed_meta meta; |
9c939c51 | 98 | struct sr_datafeed_logic logic; |
2df1e819 | 99 | struct sr_config *src; |
9c939c51 | 100 | unsigned char buffer[CHUNKSIZE]; |
ba7dd8bb | 101 | int fd, size, num_channels; |
c506a6a6 TŠ |
102 | struct context *ctx; |
103 | ||
104 | ctx = in->internal; | |
34e4813f | 105 | |
757b8c62 | 106 | if ((fd = open(filename, O_RDONLY)) == -1) |
e46b8fb1 | 107 | return SR_ERR; |
34e4813f | 108 | |
ba7dd8bb | 109 | num_channels = g_slist_length(in->sdi->channels); |
db91a1c3 | 110 | |
8e7f1cfd | 111 | /* Send header packet to the session bus. */ |
29a27196 | 112 | std_session_send_df_header(in->sdi, LOG_PREFIX); |
34e4813f | 113 | |
2df1e819 BV |
114 | if (ctx->samplerate) { |
115 | packet.type = SR_DF_META; | |
116 | packet.payload = &meta; | |
ec4063b8 BV |
117 | src = sr_config_new(SR_CONF_SAMPLERATE, |
118 | g_variant_new_uint64(ctx->samplerate)); | |
2df1e819 BV |
119 | meta.config = g_slist_append(NULL, src); |
120 | sr_session_send(in->sdi, &packet); | |
ec4063b8 | 121 | sr_config_free(src); |
2df1e819 | 122 | } |
f366e86c | 123 | |
8e7f1cfd | 124 | /* Chop up the input file into chunks & send it to the session bus. */ |
5a2326a7 | 125 | packet.type = SR_DF_LOGIC; |
9c939c51 | 126 | packet.payload = &logic; |
ba7dd8bb | 127 | logic.unitsize = (num_channels + 7) / 8; |
9c939c51 | 128 | logic.data = buffer; |
757b8c62 | 129 | while ((size = read(fd, buffer, CHUNKSIZE)) > 0) { |
9c939c51 | 130 | logic.length = size; |
5c3c1241 | 131 | sr_session_send(in->sdi, &packet); |
34e4813f BV |
132 | } |
133 | close(fd); | |
134 | ||
8e7f1cfd | 135 | /* Send end packet to the session bus. */ |
5a2326a7 | 136 | packet.type = SR_DF_END; |
5c3c1241 | 137 | sr_session_send(in->sdi, &packet); |
34e4813f | 138 | |
c506a6a6 TŠ |
139 | g_free(ctx); |
140 | in->internal = NULL; | |
141 | ||
e46b8fb1 | 142 | return SR_OK; |
34e4813f BV |
143 | } |
144 | ||
d4c93774 | 145 | SR_PRIV struct sr_input_module input_binary = { |
cdb3573c | 146 | .id = "binary", |
17bfaca6 | 147 | .desc = "Raw binary", |
d494a4aa UH |
148 | .format_match = format_match, |
149 | .init = init, | |
150 | .loadfile = loadfile, | |
34e4813f | 151 | }; |