2 * This file is part of the sigrok project.
4 * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
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.
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.
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/>.
21 #include <sys/types.h>
26 #include "libsigrok.h"
27 #include "libsigrok-internal.h"
29 #define CHUNKSIZE (512 * 1024)
30 #define DEFAULT_NUM_PROBES 8
36 static int format_match(const char *filename)
38 /* suppress compiler warning */
41 /* this module will handle anything you throw at it */
45 static int init(struct sr_input *in)
47 struct sr_probe *probe;
49 char name[SR_MAX_PROBENAME_LEN + 1];
53 if (!(ctx = g_try_malloc0(sizeof(*ctx)))) {
54 sr_err("binary in: %s: ctx malloc failed", __func__);
58 num_probes = DEFAULT_NUM_PROBES;
62 param = g_hash_table_lookup(in->param, "numprobes");
64 num_probes = strtoul(param, NULL, 10);
69 param = g_hash_table_lookup(in->param, "samplerate");
71 if (sr_parse_sizestring(param, &ctx->samplerate) != SR_OK)
76 /* Create a virtual device. */
77 in->sdi = sr_dev_inst_new(0, SR_ST_ACTIVE, NULL, NULL, NULL);
80 for (i = 0; i < num_probes; i++) {
81 snprintf(name, SR_MAX_PROBENAME_LEN, "%d", i);
82 /* TODO: Check return value. */
83 if (!(probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE, name)))
85 in->sdi->probes = g_slist_append(in->sdi->probes, probe);
91 static int loadfile(struct sr_input *in, const char *filename)
93 struct sr_datafeed_header header;
94 struct sr_datafeed_packet packet;
95 struct sr_datafeed_meta_logic meta;
96 struct sr_datafeed_logic logic;
97 unsigned char buffer[CHUNKSIZE];
98 int fd, size, num_probes;
103 if ((fd = open(filename, O_RDONLY)) == -1)
106 num_probes = g_slist_length(in->sdi->probes);
109 header.feed_version = 1;
110 gettimeofday(&header.starttime, NULL);
111 packet.type = SR_DF_HEADER;
112 packet.payload = &header;
113 sr_session_send(in->sdi, &packet);
115 /* Send metadata about the SR_DF_LOGIC packets to come. */
116 packet.type = SR_DF_META_LOGIC;
117 packet.payload = &meta;
118 meta.samplerate = ctx->samplerate;
119 meta.num_probes = num_probes;
120 sr_session_send(in->sdi, &packet);
122 /* chop up the input file into chunks and feed it into the session bus */
123 packet.type = SR_DF_LOGIC;
124 packet.payload = &logic;
125 logic.unitsize = (num_probes + 7) / 8;
127 while ((size = read(fd, buffer, CHUNKSIZE)) > 0) {
129 sr_session_send(in->sdi, &packet);
134 packet.type = SR_DF_END;
135 sr_session_send(in->sdi, &packet);
143 SR_PRIV struct sr_input_format input_binary = {
145 .description = "Raw binary",
146 .format_match = format_match,
148 .loadfile = loadfile,