]>
Commit | Line | Data |
---|---|---|
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 | |
8e7f1cfd UH |
29 | /* Message logging helpers with driver-specific prefix string. */ |
30 | #define DRIVER_LOG_DOMAIN "input/binary: " | |
31 | #define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args) | |
32 | #define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args) | |
33 | #define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args) | |
34 | #define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args) | |
35 | #define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args) | |
36 | #define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args) | |
37 | ||
8ff6afc9 | 38 | #define CHUNKSIZE (512 * 1024) |
13a12913 BV |
39 | #define DEFAULT_NUM_PROBES 8 |
40 | ||
c506a6a6 | 41 | struct context { |
0d1297a2 | 42 | uint64_t samplerate; |
c506a6a6 TŠ |
43 | }; |
44 | ||
757b8c62 | 45 | static int format_match(const char *filename) |
34e4813f | 46 | { |
719c5a93 | 47 | (void)filename; |
13a12913 | 48 | |
8e7f1cfd | 49 | /* This module will handle anything you throw at it. */ |
34e4813f BV |
50 | return TRUE; |
51 | } | |
52 | ||
f50f3f40 | 53 | static int init(struct sr_input *in) |
13a12913 | 54 | { |
5c3c1241 | 55 | struct sr_probe *probe; |
464d12c7 | 56 | int num_probes, i; |
c37d2b1b | 57 | char name[SR_MAX_PROBENAME_LEN + 1]; |
c506a6a6 TŠ |
58 | char *param; |
59 | struct context *ctx; | |
60 | ||
61 | if (!(ctx = g_try_malloc0(sizeof(*ctx)))) { | |
8e7f1cfd | 62 | sr_err("Input format context malloc failed."); |
c506a6a6 TŠ |
63 | return SR_ERR_MALLOC; |
64 | } | |
13a12913 | 65 | |
c506a6a6 TŠ |
66 | num_probes = DEFAULT_NUM_PROBES; |
67 | ctx->samplerate = 0; | |
68 | ||
8e7f1cfd | 69 | if (in->param) { |
c506a6a6 TŠ |
70 | param = g_hash_table_lookup(in->param, "numprobes"); |
71 | if (param) { | |
72 | num_probes = strtoul(param, NULL, 10); | |
73 | if (num_probes < 1) | |
74 | return SR_ERR; | |
75 | } | |
76 | ||
77 | param = g_hash_table_lookup(in->param, "samplerate"); | |
78 | if (param) { | |
0d1297a2 | 79 | if (sr_parse_sizestring(param, &ctx->samplerate) != SR_OK) |
c506a6a6 | 80 | return SR_ERR; |
c506a6a6 | 81 | } |
c37d2b1b | 82 | } |
13a12913 | 83 | |
c37d2b1b | 84 | /* Create a virtual device. */ |
5c3c1241 | 85 | in->sdi = sr_dev_inst_new(0, SR_ST_ACTIVE, NULL, NULL, NULL); |
c506a6a6 | 86 | in->internal = ctx; |
464d12c7 | 87 | |
c37d2b1b | 88 | for (i = 0; i < num_probes; i++) { |
464d12c7 | 89 | snprintf(name, SR_MAX_PROBENAME_LEN, "%d", i); |
c37d2b1b | 90 | /* TODO: Check return value. */ |
5c3c1241 BV |
91 | if (!(probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE, name))) |
92 | return SR_ERR; | |
93 | in->sdi->probes = g_slist_append(in->sdi->probes, probe); | |
464d12c7 | 94 | } |
13a12913 | 95 | |
e46b8fb1 | 96 | return SR_OK; |
13a12913 BV |
97 | } |
98 | ||
f50f3f40 | 99 | static int loadfile(struct sr_input *in, const char *filename) |
34e4813f | 100 | { |
b9c735a2 UH |
101 | struct sr_datafeed_header header; |
102 | struct sr_datafeed_packet packet; | |
f366e86c | 103 | struct sr_datafeed_meta_logic meta; |
9c939c51 BV |
104 | struct sr_datafeed_logic logic; |
105 | unsigned char buffer[CHUNKSIZE]; | |
db91a1c3 | 106 | int fd, size, num_probes; |
c506a6a6 TŠ |
107 | struct context *ctx; |
108 | ||
109 | ctx = in->internal; | |
34e4813f | 110 | |
757b8c62 | 111 | if ((fd = open(filename, O_RDONLY)) == -1) |
e46b8fb1 | 112 | return SR_ERR; |
34e4813f | 113 | |
5c3c1241 | 114 | num_probes = g_slist_length(in->sdi->probes); |
db91a1c3 | 115 | |
8e7f1cfd | 116 | /* Send header packet to the session bus. */ |
34e4813f | 117 | header.feed_version = 1; |
34e4813f | 118 | gettimeofday(&header.starttime, NULL); |
5a2326a7 | 119 | packet.type = SR_DF_HEADER; |
34e4813f | 120 | packet.payload = &header; |
5c3c1241 | 121 | sr_session_send(in->sdi, &packet); |
34e4813f | 122 | |
f366e86c BV |
123 | /* Send metadata about the SR_DF_LOGIC packets to come. */ |
124 | packet.type = SR_DF_META_LOGIC; | |
125 | packet.payload = &meta; | |
c506a6a6 | 126 | meta.samplerate = ctx->samplerate; |
f366e86c | 127 | meta.num_probes = num_probes; |
5c3c1241 | 128 | sr_session_send(in->sdi, &packet); |
f366e86c | 129 | |
8e7f1cfd | 130 | /* Chop up the input file into chunks & send it to the session bus. */ |
5a2326a7 | 131 | packet.type = SR_DF_LOGIC; |
9c939c51 BV |
132 | packet.payload = &logic; |
133 | logic.unitsize = (num_probes + 7) / 8; | |
134 | logic.data = buffer; | |
757b8c62 | 135 | while ((size = read(fd, buffer, CHUNKSIZE)) > 0) { |
9c939c51 | 136 | logic.length = size; |
5c3c1241 | 137 | sr_session_send(in->sdi, &packet); |
34e4813f BV |
138 | } |
139 | close(fd); | |
140 | ||
8e7f1cfd | 141 | /* Send end packet to the session bus. */ |
5a2326a7 | 142 | packet.type = SR_DF_END; |
5c3c1241 | 143 | sr_session_send(in->sdi, &packet); |
34e4813f | 144 | |
c506a6a6 TŠ |
145 | g_free(ctx); |
146 | in->internal = NULL; | |
147 | ||
e46b8fb1 | 148 | return SR_OK; |
34e4813f BV |
149 | } |
150 | ||
7c1d391c | 151 | SR_PRIV struct sr_input_format input_binary = { |
cdb3573c | 152 | .id = "binary", |
d494a4aa UH |
153 | .description = "Raw binary", |
154 | .format_match = format_match, | |
155 | .init = init, | |
156 | .loadfile = loadfile, | |
34e4813f | 157 | }; |