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1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2011 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 | ||
22b02383 | 20 | #include "config.h" |
7d658874 BV |
21 | #include <string.h> |
22 | #include <stdlib.h> | |
23 | #include <unistd.h> | |
24 | #include <zip.h> | |
25 | #include <glib.h> | |
26 | #include <sigrok.h> | |
7d658874 BV |
27 | |
28 | extern struct session *session; | |
29 | extern struct sr_device_plugin session_driver; | |
30 | ||
31 | ||
32 | int session_load(const char *filename) | |
33 | { | |
34 | GKeyFile *kf; | |
35 | GPtrArray *capturefiles; | |
36 | struct zip *archive; | |
37 | struct zip_file *zf; | |
38 | struct zip_stat zs; | |
39 | struct session *session; | |
40 | struct sr_device *device; | |
41 | struct probe *probe; | |
42 | int ret, err, probenum, devcnt, i, j; | |
43 | uint64_t tmp_u64, total_probes, enabled_probes, p; | |
44 | char **sections, **keys, *metafile, *val, c; | |
45 | ||
46 | if (!(archive = zip_open(filename, 0, &err))) { | |
47 | g_debug("Failed to open session file: zip error %d", err); | |
48 | return SR_ERR; | |
49 | } | |
50 | ||
51 | /* check "version" */ | |
52 | if (!(zf = zip_fopen(archive, "version", 0))) { | |
53 | g_debug("Not a sigrok session file."); | |
54 | return SR_ERR; | |
55 | } | |
56 | ret = zip_fread(zf, &c, 1); | |
57 | if (ret != 1 || c != '1') { | |
58 | g_debug("Not a valid sigrok session file."); | |
59 | return SR_ERR; | |
60 | } | |
61 | zip_fclose(zf); | |
62 | ||
63 | /* read "metadata" */ | |
64 | if (zip_stat(archive, "metadata", 0, &zs) == -1) { | |
65 | g_debug("Not a valid sigrok session file."); | |
66 | return SR_ERR; | |
67 | } | |
68 | metafile = g_malloc(zs.size); | |
69 | zf = zip_fopen_index(archive, zs.index, 0); | |
70 | zip_fread(zf, metafile, zs.size); | |
71 | zip_fclose(zf); | |
72 | ||
73 | kf = g_key_file_new(); | |
74 | if (!g_key_file_load_from_data(kf, metafile, zs.size, 0, NULL)) { | |
75 | g_debug("Failed to parse metadata."); | |
76 | return SR_ERR; | |
77 | } | |
78 | ||
79 | session = session_new(); | |
80 | ||
81 | devcnt = 0; | |
82 | capturefiles = g_ptr_array_new_with_free_func(g_free); | |
83 | sections = g_key_file_get_groups(kf, NULL); | |
84 | for (i = 0; sections[i]; i++) { | |
85 | if (!strcmp(sections[i], "global")) | |
86 | /* nothing really interesting in here yet */ | |
87 | continue; | |
88 | if (!strncmp(sections[i], "device ", 7)) { | |
89 | /* device section */ | |
90 | device = NULL; | |
91 | enabled_probes = 0; | |
92 | keys = g_key_file_get_keys(kf, sections[i], NULL, NULL); | |
93 | for (j = 0; keys[j]; j++) { | |
94 | val = g_key_file_get_string(kf, sections[i], keys[j], NULL); | |
95 | if (!strcmp(keys[j], "capturefile")) { | |
96 | device = device_new(&session_driver, devcnt, 0); | |
97 | if (devcnt == 0) | |
98 | /* first device, init the plugin */ | |
99 | device->plugin->init((char *)filename); | |
100 | session_device_add(device); | |
101 | device->plugin->set_configuration(devcnt, SR_HWCAP_CAPTUREFILE, val); | |
102 | g_ptr_array_add(capturefiles, val); | |
103 | } else if (!strcmp(keys[j], "samplerate")) { | |
104 | tmp_u64 = sr_parse_sizestring(val); | |
105 | device->plugin->set_configuration(devcnt, SR_HWCAP_SAMPLERATE, &tmp_u64); | |
106 | } else if (!strcmp(keys[j], "unitsize")) { | |
107 | tmp_u64 = strtoull(val, NULL, 10); | |
108 | device->plugin->set_configuration(devcnt, SR_HWCAP_CAPTURE_UNITSIZE, &tmp_u64); | |
109 | } else if (!strcmp(keys[j], "total probes")) { | |
110 | total_probes = strtoull(val, NULL, 10); | |
111 | device->plugin->set_configuration(devcnt, SR_HWCAP_CAPTURE_NUM_PROBES, &total_probes); | |
112 | for (p = 1; p <= total_probes; p++) | |
113 | device_probe_add(device, NULL); | |
114 | } else if (!strncmp(keys[j], "probe", 5)) { | |
115 | if (!device) | |
116 | continue; | |
117 | enabled_probes++; | |
118 | tmp_u64 = strtoul(keys[j]+5, NULL, 10); | |
119 | device_probe_name(device, tmp_u64, val); | |
120 | } else if (!strncmp(keys[j], "trigger", 7)) { | |
121 | probenum = strtoul(keys[j]+7, NULL, 10); | |
122 | device_trigger_set(device, probenum, val); | |
123 | } | |
124 | } | |
125 | g_strfreev(keys); | |
126 | for (p = enabled_probes; p < total_probes; p++) { | |
127 | probe = g_slist_nth_data(device->probes, p); | |
128 | probe->enabled = FALSE; | |
129 | } | |
130 | } | |
131 | } | |
132 | g_strfreev(sections); | |
133 | g_key_file_free(kf); | |
134 | ||
135 | return SR_OK; | |
136 | } | |
137 | ||
138 | int session_save(char *filename) | |
139 | { | |
140 | GSList *l, *p, *d; | |
141 | FILE *meta; | |
142 | struct sr_device *device; | |
143 | struct probe *probe; | |
144 | struct datastore *ds; | |
145 | struct zip *zipfile; | |
146 | struct zip_source *versrc, *metasrc, *logicsrc; | |
147 | int bufcnt, devcnt, tmpfile, ret, error, probecnt; | |
148 | uint64_t samplerate; | |
4a1b18f8 | 149 | char version[1], rawname[16], metafile[32], *buf, *s; |
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150 | |
151 | /* Quietly delete it first, libzip wants replace ops otherwise. */ | |
4a1b18f8 BV |
152 | unlink(filename); |
153 | if (!(zipfile = zip_open(filename, ZIP_CREATE, &error))) | |
7d658874 | 154 | return SR_ERR; |
7d658874 BV |
155 | |
156 | /* "version" */ | |
157 | version[0] = '1'; | |
158 | if (!(versrc = zip_source_buffer(zipfile, version, 1, 0))) | |
159 | return SR_ERR; | |
160 | if (zip_add(zipfile, "version", versrc) == -1) { | |
161 | g_message("error saving version into zipfile: %s", | |
162 | zip_strerror(zipfile)); | |
163 | return SR_ERR; | |
164 | } | |
165 | ||
166 | /* init "metadata" */ | |
167 | strcpy(metafile, "sigrok-meta-XXXXXX"); | |
168 | if ((tmpfile = g_mkstemp(metafile)) == -1) | |
169 | return SR_ERR; | |
170 | close(tmpfile); | |
171 | meta = fopen(metafile, "wb"); | |
172 | fprintf(meta, "[global]\n"); | |
173 | fprintf(meta, "sigrok version = %s\n", PACKAGE_VERSION); | |
174 | /* TODO: save protocol decoders used */ | |
175 | ||
176 | /* all datastores in all devices */ | |
177 | devcnt = 1; | |
178 | for (l = session->devices; l; l = l->next) { | |
179 | device = l->data; | |
180 | /* metadata */ | |
181 | fprintf(meta, "[device %d]\n", devcnt); | |
182 | if (device->plugin) | |
183 | fprintf(meta, "driver = %s\n", device->plugin->name); | |
184 | ||
185 | ds = device->datastore; | |
186 | if (ds) { | |
187 | /* metadata */ | |
188 | fprintf(meta, "capturefile = logic-%d\n", devcnt); | |
189 | fprintf(meta, "unitsize = %d\n", ds->ds_unitsize); | |
190 | fprintf(meta, "total probes = %d\n", g_slist_length(device->probes)); | |
191 | if (device_has_hwcap(device, SR_HWCAP_SAMPLERATE)) { | |
192 | samplerate = *((uint64_t *) device->plugin->get_device_info( | |
193 | device->plugin_index, SR_DI_CUR_SAMPLERATE)); | |
194 | s = sr_samplerate_string(samplerate); | |
195 | fprintf(meta, "samplerate = %s\n", s); | |
196 | free(s); | |
197 | } | |
198 | probecnt = 1; | |
199 | for (p = device->probes; p; p = p->next) { | |
200 | probe = p->data; | |
201 | if (probe->enabled) { | |
202 | if (probe->name) | |
203 | fprintf(meta, "probe%d = %s\n", probecnt, probe->name); | |
204 | if (probe->trigger) | |
205 | fprintf(meta, " trigger%d = %s\n", probecnt, probe->trigger); | |
206 | probecnt++; | |
207 | } | |
208 | } | |
209 | ||
210 | /* dump datastore into logic-n */ | |
211 | buf = malloc(ds->num_units * ds->ds_unitsize + | |
212 | DATASTORE_CHUNKSIZE); | |
213 | bufcnt = 0; | |
214 | for (d = ds->chunklist; d; d = d->next) { | |
215 | memcpy(buf + bufcnt, d->data, | |
216 | DATASTORE_CHUNKSIZE); | |
217 | bufcnt += DATASTORE_CHUNKSIZE; | |
218 | } | |
219 | if (!(logicsrc = zip_source_buffer(zipfile, buf, | |
220 | ds->num_units * ds->ds_unitsize, TRUE))) | |
221 | return SR_ERR; | |
222 | snprintf(rawname, 15, "logic-%d", devcnt); | |
223 | if (zip_add(zipfile, rawname, logicsrc) == -1) | |
224 | return SR_ERR; | |
225 | } | |
226 | devcnt++; | |
227 | } | |
228 | fclose(meta); | |
229 | ||
230 | if (!(metasrc = zip_source_file(zipfile, metafile, 0, -1))) | |
231 | return SR_ERR; | |
232 | if (zip_add(zipfile, "metadata", metasrc) == -1) | |
233 | return SR_ERR; | |
234 | ||
235 | if ((ret = zip_close(zipfile)) == -1) { | |
236 | g_message("error saving zipfile: %s", zip_strerror(zipfile)); | |
237 | return SR_ERR; | |
238 | } | |
239 | ||
240 | unlink(metafile); | |
241 | ||
242 | return SR_OK; | |
243 | } | |
244 |