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a1bb33af UH |
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 | ||
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <unistd.h> | |
23 | #include <string.h> | |
24 | #include <zip.h> | |
25 | #include "sigrok.h" | |
26 | ||
27 | /* there can only be one session at a time */ | |
28 | struct session *session; | |
29 | ||
30 | ||
31 | struct session *session_load(char *filename) | |
32 | { | |
33 | struct session *session; | |
34 | ||
35 | /* TODO: implement */ | |
36 | session = NULL; | |
37 | ||
38 | return session; | |
39 | } | |
40 | ||
41 | ||
42 | struct session *session_new(void) | |
43 | { | |
44 | ||
45 | session = calloc(1, sizeof(struct session)); | |
46 | ||
47 | return session; | |
48 | } | |
49 | ||
50 | ||
51 | void session_destroy(void) | |
52 | { | |
53 | ||
54 | g_slist_free(session->devices); | |
55 | ||
56 | /* TODO: loop over protocols and free them */ | |
57 | ||
58 | g_free(session); | |
59 | ||
60 | } | |
61 | ||
62 | ||
63 | void session_device_clear(void) | |
64 | { | |
65 | ||
66 | g_slist_free(session->devices); | |
67 | session->devices = NULL; | |
68 | ||
69 | } | |
70 | ||
71 | ||
72 | int session_device_add(struct device *device) | |
73 | { | |
74 | int ret; | |
75 | ||
76 | ret = device->plugin->open(device->plugin_index); | |
77 | if(ret == SIGROK_OK) | |
78 | session->devices = g_slist_append(session->devices, device); | |
79 | ||
80 | return ret; | |
81 | } | |
82 | ||
83 | ||
84 | void session_pa_clear(void) | |
85 | { | |
86 | ||
87 | /* the protocols are pointers to the global set of PA plugins, so don't free them */ | |
88 | g_slist_free(session->analyzers); | |
89 | session->analyzers = NULL; | |
90 | ||
91 | } | |
92 | ||
93 | ||
94 | void session_pa_add(struct analyzer *an) | |
95 | { | |
96 | ||
97 | session->analyzers = g_slist_append(session->analyzers, an); | |
98 | ||
99 | } | |
100 | ||
101 | ||
102 | void session_datafeed_callback_clear(void) | |
103 | { | |
104 | ||
105 | g_slist_free(session->datafeed_callbacks); | |
106 | session->datafeed_callbacks = NULL; | |
107 | ||
108 | } | |
109 | ||
110 | ||
111 | void session_datafeed_callback_add(datafeed_callback callback) | |
112 | { | |
113 | ||
114 | session->datafeed_callbacks = g_slist_append(session->datafeed_callbacks, callback); | |
115 | ||
116 | } | |
117 | ||
118 | ||
119 | int session_start(void) | |
120 | { | |
121 | struct device *device; | |
122 | GSList *l; | |
123 | int ret; | |
124 | ||
125 | g_message("starting acquisition"); | |
126 | for(l = session->devices; l; l = l->next) | |
127 | { | |
128 | device = l->data; | |
129 | if( (ret = device->plugin->start_acquisition(device->plugin_index, device)) != SIGROK_OK) | |
130 | break; | |
131 | } | |
132 | ||
133 | return ret; | |
134 | } | |
135 | ||
136 | ||
137 | void session_stop(void) | |
138 | { | |
139 | struct device *device; | |
140 | GSList *l; | |
141 | ||
142 | g_message("stopping acquisition"); | |
143 | for(l = session->devices; l; l = l->next) | |
144 | { | |
145 | device = l->data; | |
146 | device->plugin->stop_acquisition(device->plugin_index, device); | |
147 | } | |
148 | ||
149 | } | |
150 | ||
151 | ||
152 | void session_bus(struct device *device, struct datafeed_packet *packet) | |
153 | { | |
154 | GSList *l; | |
155 | datafeed_callback cb; | |
156 | ||
157 | /* TODO: send packet through PA pipe, and send the output of that to | |
158 | * the callbacks as well | |
159 | */ | |
160 | ||
161 | for(l = session->datafeed_callbacks; l; l = l->next) | |
162 | { | |
163 | cb = l->data; | |
164 | cb(device, packet); | |
165 | } | |
166 | ||
167 | } | |
168 | ||
169 | ||
170 | void make_metadata(char *filename) | |
171 | { | |
172 | GSList *l, *p; | |
173 | struct device *device; | |
174 | struct probe *probe; | |
175 | FILE *f; | |
176 | int devcnt; | |
177 | ||
178 | f = fopen(filename, "wb"); | |
179 | ||
180 | /* general */ | |
181 | ||
182 | /* devices */ | |
183 | devcnt = 1; | |
184 | for(l = session->devices; l; l = l->next) { | |
185 | device = l->data; | |
186 | fprintf(f, "[device]\n"); | |
187 | fprintf(f, "driver = %s\n", device->plugin->name); | |
188 | if(device->datastore) | |
189 | fprintf(f, "capturefile = raw-%d\n", devcnt); | |
190 | for(p = device->probes; p; p = p->next) { | |
191 | probe = p->data; | |
192 | if(probe->enabled) | |
193 | { | |
194 | fprintf(f, "probe %d", probe->index); | |
195 | if(probe->name) | |
196 | fprintf(f, " name \"%s\"", probe->name); | |
197 | if(probe->trigger) | |
198 | fprintf(f, " trigger \"%s\"", probe->trigger); | |
199 | fprintf(f, "\n"); | |
200 | } | |
201 | } | |
202 | devcnt++; | |
203 | } | |
204 | ||
205 | /* TODO: protocol analyzers */ | |
206 | ||
207 | fclose(f); | |
208 | ||
209 | } | |
210 | ||
211 | ||
212 | int session_save(char *filename) | |
213 | { | |
214 | GSList *l, *d; | |
215 | struct device *device; | |
216 | struct datastore *ds; | |
217 | struct zip *zipfile; | |
218 | struct zip_source *src; | |
219 | int bufcnt, devcnt, tmpfile, ret, error; | |
220 | char version[1], rawname[16], metafile[32], *buf; | |
221 | ||
222 | /* quietly delete it first, libzip wants replace ops otherwise */ | |
223 | unlink(filename); | |
224 | ||
225 | if( !(zipfile = zip_open(filename, ZIP_CREATE, &error)) ) | |
e31b636d | 226 | return SIGROK_ERR; |
a1bb33af UH |
227 | |
228 | /* version */ | |
229 | version[0] = '1'; | |
230 | if( !(src = zip_source_buffer(zipfile, version, 1, 0)) ) | |
e31b636d | 231 | return SIGROK_ERR; |
a1bb33af UH |
232 | if(zip_add(zipfile, "version", src) == -1) { |
233 | g_message("error saving version into zipfile: %s", zip_strerror(zipfile)); | |
e31b636d | 234 | return SIGROK_ERR; |
a1bb33af UH |
235 | } |
236 | ||
237 | /* metadata */ | |
238 | strcpy(metafile, "sigrok-meta-XXXXXX"); | |
239 | if( (tmpfile = g_mkstemp(metafile)) == -1) | |
e31b636d | 240 | return SIGROK_ERR; |
a1bb33af UH |
241 | close(tmpfile); |
242 | make_metadata(metafile); | |
243 | if( !(src = zip_source_file(zipfile, metafile, 0, -1)) ) | |
e31b636d | 244 | return SIGROK_ERR; |
a1bb33af | 245 | if(zip_add(zipfile, "metadata", src) == -1) |
e31b636d | 246 | return SIGROK_ERR; |
a1bb33af UH |
247 | unlink(metafile); |
248 | ||
249 | /* raw */ | |
250 | devcnt = 1; | |
251 | for(l = session->devices; l; l = l->next) { | |
252 | device = l->data; | |
253 | ds = device->datastore; | |
254 | if(ds) { | |
255 | buf = malloc(ds->num_units * ds->ds_unitsize + DATASTORE_CHUNKSIZE); | |
256 | bufcnt = 0; | |
257 | for(d = ds->chunklist; d; d = d->next) { | |
258 | memcpy(buf + bufcnt, d->data, DATASTORE_CHUNKSIZE); | |
259 | bufcnt += DATASTORE_CHUNKSIZE; | |
260 | } | |
261 | if( !(src = zip_source_buffer(zipfile, buf, ds->num_units * ds->ds_unitsize, TRUE)) ) | |
e31b636d | 262 | return SIGROK_ERR; |
a1bb33af UH |
263 | snprintf(rawname, 15, "raw-%d", devcnt); |
264 | if(zip_add(zipfile, rawname, src) == -1) | |
e31b636d | 265 | return SIGROK_ERR; |
a1bb33af UH |
266 | } |
267 | devcnt++; | |
268 | } | |
269 | ||
270 | if( (ret = zip_close(zipfile)) == -1) { | |
271 | g_message("error saving zipfile: %s", zip_strerror(zipfile)); | |
e31b636d | 272 | return SIGROK_ERR; |
a1bb33af UH |
273 | } |
274 | ||
275 | return SIGROK_OK; | |
276 | } |