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b2c19614 BV |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de> | |
bc5f5a43 | 5 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> |
b2c19614 BV |
6 | * |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation, either version 3 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
73191416 | 21 | #include "sigrokdecode.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */ |
7ce7775c BV |
22 | #include "sigrokdecode-internal.h" |
23 | #include "config.h" | |
b2c19614 | 24 | #include <glib.h> |
1aef2f93 | 25 | #include <inttypes.h> |
0bdadba2 | 26 | #include <stdlib.h> |
b2c19614 | 27 | |
d7dae84b UH |
28 | /** |
29 | * @mainpage libsigrokdecode API | |
30 | * | |
31 | * @section sec_intro Introduction | |
32 | * | |
33 | * The <a href="http://sigrok.org">sigrok</a> project aims at creating a | |
34 | * portable, cross-platform, Free/Libre/Open-Source signal analysis software | |
35 | * suite that supports various device types (such as logic analyzers, | |
36 | * oscilloscopes, multimeters, and more). | |
37 | * | |
38 | * <a href="http://sigrok.org/wiki/Libsigrokdecode">libsigrokdecode</a> is a | |
39 | * shared library written in C which provides the basic API for (streaming) | |
40 | * protocol decoding functionality. | |
41 | * | |
42 | * The <a href="http://sigrok.org/wiki/Protocol_decoders">protocol decoders</a> | |
43 | * are written in Python (>= 3.0). | |
44 | * | |
45 | * @section sec_api API reference | |
46 | * | |
47 | * See the "Modules" page for an introduction to various libsigrokdecode | |
48 | * related topics and the detailed API documentation of the respective | |
49 | * functions. | |
50 | * | |
51 | * You can also browse the API documentation by file, or review all | |
52 | * data structures. | |
53 | * | |
54 | * @section sec_mailinglists Mailing lists | |
55 | * | |
56 | * There are two mailing lists for sigrok/libsigrokdecode: <a href="https://lists.sourceforge.net/lists/listinfo/sigrok-devel">sigrok-devel</a> and <a href="https://lists.sourceforge.net/lists/listinfo/sigrok-commits">sigrok-commits</a>. | |
57 | * | |
58 | * @section sec_irc IRC | |
59 | * | |
60 | * You can find the sigrok developers in the | |
61 | * <a href="irc://chat.freenode.net/sigrok">\#sigrok</a> | |
62 | * IRC channel on Freenode. | |
63 | * | |
64 | * @section sec_website Website | |
65 | * | |
66 | * <a href="http://sigrok.org/wiki/Libsigrokdecode">sigrok.org/wiki/Libsigrokdecode</a> | |
67 | */ | |
68 | ||
69 | /** | |
70 | * @file | |
71 | * | |
72 | * Initializing and shutting down libsigrokdecode. | |
73 | */ | |
74 | ||
75 | /** | |
76 | * @defgroup grp_init Initialization | |
77 | * | |
78 | * Initializing and shutting down libsigrokdecode. | |
79 | * | |
80 | * Before using any of the libsigrokdecode functionality, srd_init() must | |
81 | * be called to initialize the library. | |
82 | * | |
83 | * When libsigrokdecode functionality is no longer needed, srd_exit() should | |
84 | * be called. | |
85 | * | |
86 | * @{ | |
87 | */ | |
88 | ||
d906d3f9 | 89 | /* List of decoder instances. */ |
7ce7775c | 90 | static GSList *di_list = NULL; |
d906d3f9 | 91 | |
361fdcaa | 92 | /* List of frontend callbacks to receive decoder output. */ |
983cb0f5 BV |
93 | static GSList *callbacks = NULL; |
94 | ||
57790bc8 UH |
95 | /** @cond PRIVATE */ |
96 | ||
c9bfccc6 | 97 | /* decoder.c */ |
55c3c5f4 | 98 | extern SRD_PRIV GSList *pd_list; |
b2c19614 | 99 | |
c9bfccc6 | 100 | /* module_sigrokdecode.c */ |
53a07a6d UH |
101 | /* FIXME: SRD_PRIV causes issues on MinGW. Investigate. */ |
102 | extern PyMODINIT_FUNC PyInit_sigrokdecode(void); | |
b2c19614 | 103 | |
c9bfccc6 | 104 | /* type_logic.c */ |
55c3c5f4 | 105 | extern SRD_PRIV PyTypeObject srd_logic_type; |
b2c19614 | 106 | |
57790bc8 UH |
107 | /** @endcond */ |
108 | ||
b2c19614 BV |
109 | /** |
110 | * Initialize libsigrokdecode. | |
111 | * | |
112 | * This initializes the Python interpreter, and creates and initializes | |
361fdcaa | 113 | * a "sigrokdecode" Python module. |
b2c19614 BV |
114 | * |
115 | * Then, it searches for sigrok protocol decoder files (*.py) in the | |
116 | * "decoders" subdirectory of the the sigrok installation directory. | |
117 | * All decoders that are found are loaded into memory and added to an | |
9d122fd5 | 118 | * internal list of decoders, which can be queried via srd_decoders_list(). |
b2c19614 BV |
119 | * |
120 | * The caller is responsible for calling the clean-up function srd_exit(), | |
121 | * which will properly shut down libsigrokdecode and free its allocated memory. | |
122 | * | |
7ce7775c | 123 | * Multiple calls to srd_init(), without calling srd_exit() in between, |
b2c19614 BV |
124 | * are not allowed. |
125 | * | |
65e1c7d0 | 126 | * @param path Path to an extra directory containing protocol decoders |
361fdcaa | 127 | * which will be added to the Python sys.path, or NULL. |
65e1c7d0 | 128 | * |
b2c19614 BV |
129 | * @return SRD_OK upon success, a (negative) error code otherwise. |
130 | * Upon Python errors, return SRD_ERR_PYTHON. If the sigrok decoders | |
131 | * directory cannot be accessed, return SRD_ERR_DECODERS_DIR. | |
132 | * If not enough memory could be allocated, return SRD_ERR_MALLOC. | |
133 | */ | |
abeeed8b | 134 | SRD_API int srd_init(const char *path) |
b2c19614 BV |
135 | { |
136 | int ret; | |
65e1c7d0 | 137 | char *env_path; |
b2c19614 | 138 | |
7a1712c4 | 139 | srd_dbg("Initializing libsigrokdecode."); |
d906d3f9 BV |
140 | |
141 | /* Add our own module to the list of built-in modules. */ | |
bc5f5a43 | 142 | PyImport_AppendInittab("sigrokdecode", PyInit_sigrokdecode); |
5f802ec6 | 143 | |
511e2123 | 144 | /* Initialize the Python interpreter. */ |
b2c19614 BV |
145 | Py_Initialize(); |
146 | ||
65e1c7d0 | 147 | /* Installed decoders. */ |
aafeeaea | 148 | if ((ret = srd_decoder_searchpath_add(DECODERS_DIR)) != SRD_OK) { |
b2c19614 BV |
149 | Py_Finalize(); |
150 | return ret; | |
151 | } | |
152 | ||
65e1c7d0 BV |
153 | /* Path specified by the user. */ |
154 | if (path) { | |
aafeeaea | 155 | if ((ret = srd_decoder_searchpath_add(path)) != SRD_OK) { |
65e1c7d0 BV |
156 | Py_Finalize(); |
157 | return ret; | |
158 | } | |
159 | } | |
160 | ||
161 | /* Environment variable overrides everything, for debugging. */ | |
162 | if ((env_path = getenv("SIGROKDECODE_DIR"))) { | |
aafeeaea | 163 | if ((ret = srd_decoder_searchpath_add(env_path)) != SRD_OK) { |
65e1c7d0 BV |
164 | Py_Finalize(); |
165 | return ret; | |
166 | } | |
167 | } | |
168 | ||
b2c19614 BV |
169 | return SRD_OK; |
170 | } | |
171 | ||
b2c19614 BV |
172 | /** |
173 | * Shutdown libsigrokdecode. | |
174 | * | |
175 | * This frees all the memory allocated for protocol decoders and shuts down | |
176 | * the Python interpreter. | |
177 | * | |
178 | * This function should only be called if there was a (successful!) invocation | |
179 | * of srd_init() before. Calling this function multiple times in a row, without | |
7ce7775c | 180 | * any successful srd_init() calls in between, is not allowed. |
b2c19614 BV |
181 | * |
182 | * @return SRD_OK upon success, a (negative) error code otherwise. | |
183 | */ | |
55c3c5f4 | 184 | SRD_API int srd_exit(void) |
b2c19614 | 185 | { |
7a1712c4 | 186 | srd_dbg("Exiting libsigrokdecode."); |
d906d3f9 | 187 | |
8ad6e500 | 188 | srd_decoder_unload_all(); |
e5080882 | 189 | g_slist_free(pd_list); |
96c52595 | 190 | pd_list = NULL; |
b2c19614 BV |
191 | |
192 | /* Py_Finalize() returns void, any finalization errors are ignored. */ | |
193 | Py_Finalize(); | |
194 | ||
195 | return SRD_OK; | |
196 | } | |
197 | ||
b2c19614 | 198 | /** |
9d9fcb37 UH |
199 | * Add an additional search directory for the protocol decoders. |
200 | * | |
201 | * The specified directory is prepended (not appended!) to Python's sys.path, | |
202 | * in order to search for sigrok protocol decoders in the specified | |
203 | * directories first, and in the generic Python module directories (and in | |
204 | * the current working directory) last. This avoids conflicts if there are | |
205 | * Python modules which have the same name as a sigrok protocol decoder in | |
206 | * sys.path or in the current working directory. | |
b2c19614 | 207 | * |
361fdcaa UH |
208 | * @param path Path to the directory containing protocol decoders which shall |
209 | * be added to the Python sys.path, or NULL. | |
9d9fcb37 | 210 | * |
65e1c7d0 | 211 | * @return SRD_OK upon success, a (negative) error code otherwise. |
57790bc8 UH |
212 | * |
213 | * @private | |
b2c19614 | 214 | */ |
aafeeaea | 215 | SRD_PRIV int srd_decoder_searchpath_add(const char *path) |
b2c19614 | 216 | { |
65e1c7d0 BV |
217 | PyObject *py_cur_path, *py_item; |
218 | GString *new_path; | |
219 | int wc_len, i; | |
220 | wchar_t *wc_new_path; | |
221 | char *item; | |
222 | ||
8ad6e500 | 223 | srd_dbg("Adding '%s' to module path.", path); |
65e1c7d0 BV |
224 | |
225 | new_path = g_string_sized_new(256); | |
226 | g_string_assign(new_path, g_strdup(path)); | |
227 | py_cur_path = PySys_GetObject("path"); | |
228 | for (i = 0; i < PyList_Size(py_cur_path); i++) { | |
229 | g_string_append(new_path, g_strdup(G_SEARCHPATH_SEPARATOR_S)); | |
230 | py_item = PyList_GetItem(py_cur_path, i); | |
231 | if (!PyUnicode_Check(py_item)) | |
232 | /* Shouldn't happen. */ | |
233 | continue; | |
234 | if (py_str_as_str(py_item, &item) != SRD_OK) | |
235 | continue; | |
236 | g_string_append(new_path, item); | |
237 | } | |
639c5689 | 238 | |
65e1c7d0 BV |
239 | /* Convert to wide chars. */ |
240 | wc_len = sizeof(wchar_t) * (new_path->len + 1); | |
241 | if (!(wc_new_path = g_try_malloc(wc_len))) { | |
242 | srd_dbg("malloc failed"); | |
243 | return SRD_ERR_MALLOC; | |
244 | } | |
245 | mbstowcs(wc_new_path, new_path->str, wc_len); | |
246 | PySys_SetPath(wc_new_path); | |
247 | g_string_free(new_path, TRUE); | |
248 | g_free(wc_new_path); | |
249 | ||
250 | //#ifdef _WIN32 | |
251 | // gchar **splitted; | |
252 | // | |
253 | // /* | |
254 | // * On Windows/MinGW, Python's sys.path needs entries of the form | |
255 | // * 'C:\\foo\\bar' instead of '/foo/bar'. | |
256 | // */ | |
257 | // | |
258 | // splitted = g_strsplit(DECODERS_DIR, "/", 0); | |
259 | // path = g_build_pathv("\\\\", splitted); | |
260 | // g_strfreev(splitted); | |
261 | //#else | |
262 | // path = g_strdup(DECODERS_DIR); | |
263 | //#endif | |
b2c19614 | 264 | |
65e1c7d0 | 265 | return SRD_OK; |
b2c19614 BV |
266 | } |
267 | ||
4895418c UH |
268 | /** @} */ |
269 | ||
270 | /** | |
271 | * @defgroup grp_instances Decoder instances | |
272 | * | |
273 | * Decoder instance handling. | |
274 | * | |
275 | * @{ | |
276 | */ | |
277 | ||
7ce7775c | 278 | /** |
b33b8aa5 | 279 | * Set one or more options in a decoder instance. |
0bdadba2 | 280 | * |
361fdcaa UH |
281 | * Handled options are removed from the hash. |
282 | * | |
0bdadba2 BV |
283 | * @param di Decoder instance. |
284 | * @param options A GHashTable of options to set. | |
7ce7775c | 285 | * |
0bdadba2 BV |
286 | * @return SRD_OK upon success, a (negative) error code otherwise. |
287 | */ | |
b33b8aa5 | 288 | SRD_API int srd_inst_option_set(struct srd_decoder_inst *di, |
0ff2d191 | 289 | GHashTable *options) |
0bdadba2 BV |
290 | { |
291 | PyObject *py_dec_options, *py_dec_optkeys, *py_di_options, *py_optval; | |
292 | PyObject *py_optlist, *py_classval; | |
293 | Py_UNICODE *py_ustr; | |
2f395bff | 294 | GVariant *value; |
0bdadba2 | 295 | unsigned long long int val_ull; |
2f395bff | 296 | gint64 val_int; |
0bdadba2 | 297 | int num_optkeys, ret, size, i; |
2f395bff BV |
298 | const char *val_str; |
299 | char *dbg, *key; | |
0bdadba2 | 300 | |
c9bfccc6 | 301 | if (!PyObject_HasAttrString(di->decoder->py_dec, "options")) { |
0bdadba2 | 302 | /* Decoder has no options. */ |
e431d9cc BV |
303 | if (g_hash_table_size(options) == 0) { |
304 | /* No options provided. */ | |
305 | return SRD_OK; | |
306 | } else { | |
307 | srd_err("Protocol decoder has no options."); | |
308 | return SRD_ERR_ARG; | |
309 | } | |
0bdadba2 | 310 | return SRD_OK; |
e431d9cc | 311 | } |
0bdadba2 BV |
312 | |
313 | ret = SRD_ERR_PYTHON; | |
314 | key = NULL; | |
315 | py_dec_options = py_dec_optkeys = py_di_options = py_optval = NULL; | |
316 | py_optlist = py_classval = NULL; | |
317 | py_dec_options = PyObject_GetAttrString(di->decoder->py_dec, "options"); | |
0bdadba2 BV |
318 | |
319 | /* All of these are synthesized objects, so they're good. */ | |
320 | py_dec_optkeys = PyDict_Keys(py_dec_options); | |
321 | num_optkeys = PyList_Size(py_dec_optkeys); | |
a8b72b05 | 322 | if (!(py_di_options = PyObject_GetAttrString(di->py_inst, "options"))) |
0bdadba2 BV |
323 | goto err_out; |
324 | for (i = 0; i < num_optkeys; i++) { | |
325 | /* Get the default class value for this option. */ | |
326 | py_str_as_str(PyList_GetItem(py_dec_optkeys, i), &key); | |
327 | if (!(py_optlist = PyDict_GetItemString(py_dec_options, key))) | |
328 | goto err_out; | |
329 | if (!(py_classval = PyList_GetItem(py_optlist, 1))) | |
330 | goto err_out; | |
130ef08a | 331 | if (!PyUnicode_Check(py_classval) && !PyLong_Check(py_classval)) { |
c9bfccc6 UH |
332 | srd_err("Options of type %s are not yet supported.", |
333 | Py_TYPE(py_classval)->tp_name); | |
130ef08a BV |
334 | goto err_out; |
335 | } | |
0bdadba2 BV |
336 | |
337 | if ((value = g_hash_table_lookup(options, key))) { | |
2f395bff BV |
338 | dbg = g_variant_print(value, TRUE); |
339 | srd_dbg("got option '%s' = %s", key, dbg); | |
340 | g_free(dbg); | |
0bdadba2 BV |
341 | /* An override for this option was provided. */ |
342 | if (PyUnicode_Check(py_classval)) { | |
2f395bff BV |
343 | if (!g_variant_is_of_type(value, G_VARIANT_TYPE_STRING)) { |
344 | srd_err("Option '%s' requires a string value.", key); | |
345 | goto err_out; | |
346 | } | |
347 | val_str = g_variant_get_string(value, NULL); | |
348 | if (!(py_optval = PyUnicode_FromString(val_str))) { | |
0bdadba2 BV |
349 | /* Some UTF-8 encoding error. */ |
350 | PyErr_Clear(); | |
2f395bff | 351 | srd_err("Option '%s' requires a UTF-8 string value.", key); |
0bdadba2 BV |
352 | goto err_out; |
353 | } | |
354 | } else if (PyLong_Check(py_classval)) { | |
2f395bff BV |
355 | if (!g_variant_is_of_type(value, G_VARIANT_TYPE_INT64)) { |
356 | srd_err("Option '%s' requires an integer value.", key); | |
357 | goto err_out; | |
358 | } | |
359 | val_int = g_variant_get_int64(value); | |
360 | if (!(py_optval = PyLong_FromLong(val_int))) { | |
0bdadba2 BV |
361 | /* ValueError Exception */ |
362 | PyErr_Clear(); | |
2f395bff | 363 | srd_err("Option '%s' has invalid integer value.", key); |
0bdadba2 BV |
364 | goto err_out; |
365 | } | |
366 | } | |
367 | g_hash_table_remove(options, key); | |
368 | } else { | |
369 | /* Use the class default for this option. */ | |
370 | if (PyUnicode_Check(py_classval)) { | |
371 | /* Make a brand new copy of the string. */ | |
372 | py_ustr = PyUnicode_AS_UNICODE(py_classval); | |
373 | size = PyUnicode_GET_SIZE(py_classval); | |
374 | py_optval = PyUnicode_FromUnicode(py_ustr, size); | |
375 | } else if (PyLong_Check(py_classval)) { | |
376 | /* Make a brand new copy of the integer. */ | |
377 | val_ull = PyLong_AsUnsignedLongLong(py_classval); | |
378 | if (val_ull == (unsigned long long)-1) { | |
379 | /* OverFlowError exception */ | |
380 | PyErr_Clear(); | |
c9bfccc6 UH |
381 | srd_err("Invalid integer value for %s: " |
382 | "expected integer.", key); | |
0bdadba2 BV |
383 | goto err_out; |
384 | } | |
385 | if (!(py_optval = PyLong_FromUnsignedLongLong(val_ull))) | |
386 | goto err_out; | |
387 | } | |
388 | } | |
389 | ||
361fdcaa UH |
390 | /* |
391 | * If we got here, py_optval holds a known good new reference | |
0bdadba2 BV |
392 | * to the instance option to set. |
393 | */ | |
394 | if (PyDict_SetItemString(py_di_options, key, py_optval) == -1) | |
395 | goto err_out; | |
396 | } | |
397 | ||
398 | ret = SRD_OK; | |
399 | ||
400 | err_out: | |
401 | Py_XDECREF(py_optlist); | |
402 | Py_XDECREF(py_di_options); | |
403 | Py_XDECREF(py_dec_optkeys); | |
404 | Py_XDECREF(py_dec_options); | |
6f858319 | 405 | g_free(key); |
2086c684 | 406 | if (PyErr_Occurred()) |
aafeeaea | 407 | srd_exception_catch("Stray exception in srd_inst_option_set()."); |
0bdadba2 BV |
408 | |
409 | return ret; | |
410 | } | |
411 | ||
b33b8aa5 | 412 | /* Helper GComparefunc for g_slist_find_custom() in srd_inst_probe_set_all() */ |
abeeed8b | 413 | static gint compare_probe_id(const struct srd_probe *a, const char *probe_id) |
f38ec285 | 414 | { |
f38ec285 BV |
415 | return strcmp(a->id, probe_id); |
416 | } | |
417 | ||
0bdadba2 | 418 | /** |
b33b8aa5 UH |
419 | * Set all probes in a decoder instance. |
420 | * | |
421 | * This function sets _all_ probes for the specified decoder instance, i.e., | |
422 | * it overwrites any probes that were already defined (if any). | |
0bdadba2 BV |
423 | * |
424 | * @param di Decoder instance. | |
38ff5046 UH |
425 | * @param new_probes A GHashTable of probes to set. Key is probe name, value is |
426 | * the probe number. Samples passed to this instance will be | |
427 | * arranged in this order. | |
12243c22 | 428 | * |
0bdadba2 BV |
429 | * @return SRD_OK upon success, a (negative) error code otherwise. |
430 | */ | |
b33b8aa5 | 431 | SRD_API int srd_inst_probe_set_all(struct srd_decoder_inst *di, |
0ff2d191 | 432 | GHashTable *new_probes) |
0bdadba2 | 433 | { |
2f395bff | 434 | GVariant *probe_val; |
f38ec285 BV |
435 | GList *l; |
436 | GSList *sl; | |
437 | struct srd_probe *p; | |
438 | int *new_probemap, new_probenum; | |
2f395bff | 439 | char *probe_id; |
38ff5046 | 440 | int i, num_required_probes; |
0bdadba2 | 441 | |
ce46beed | 442 | srd_dbg("set probes called for instance %s with list of %d probes", |
a8b72b05 | 443 | di->inst_id, g_hash_table_size(new_probes)); |
ce46beed | 444 | |
f38ec285 | 445 | if (g_hash_table_size(new_probes) == 0) |
0bdadba2 BV |
446 | /* No probes provided. */ |
447 | return SRD_OK; | |
448 | ||
c9bfccc6 | 449 | if (di->dec_num_probes == 0) { |
0bdadba2 | 450 | /* Decoder has no probes. */ |
f38ec285 | 451 | srd_err("Protocol decoder %s has no probes to define.", |
c9bfccc6 | 452 | di->decoder->name); |
f38ec285 BV |
453 | return SRD_ERR_ARG; |
454 | } | |
0bdadba2 | 455 | |
f38ec285 | 456 | new_probemap = NULL; |
0bdadba2 | 457 | |
f38ec285 | 458 | if (!(new_probemap = g_try_malloc(sizeof(int) * di->dec_num_probes))) { |
a61ece20 | 459 | srd_err("Failed to g_malloc() new probe map."); |
f38ec285 | 460 | return SRD_ERR_MALLOC; |
0bdadba2 BV |
461 | } |
462 | ||
38ff5046 UH |
463 | /* |
464 | * For now, map all indexes to probe -1 (can be overridden later). | |
465 | * This -1 is interpreted as an unspecified probe later. | |
466 | */ | |
467 | for (i = 0; i < di->dec_num_probes; i++) | |
468 | new_probemap[i] = -1; | |
469 | ||
f38ec285 BV |
470 | for (l = g_hash_table_get_keys(new_probes); l; l = l->next) { |
471 | probe_id = l->data; | |
2f395bff BV |
472 | probe_val= g_hash_table_lookup(new_probes, probe_id); |
473 | if (!g_variant_is_of_type(probe_val, G_VARIANT_TYPE_INT32)) { | |
be873260 | 474 | /* Probe name was specified without a value. */ |
c9bfccc6 | 475 | srd_err("No probe number was specified for %s.", |
2f395bff | 476 | probe_id); |
be873260 BV |
477 | g_free(new_probemap); |
478 | return SRD_ERR_ARG; | |
479 | } | |
2f395bff | 480 | new_probenum = g_variant_get_int32(probe_val); |
f38ec285 BV |
481 | if (!(sl = g_slist_find_custom(di->decoder->probes, probe_id, |
482 | (GCompareFunc)compare_probe_id))) { | |
483 | /* Fall back on optional probes. */ | |
dcdf4883 | 484 | if (!(sl = g_slist_find_custom(di->decoder->opt_probes, |
c9bfccc6 UH |
485 | probe_id, (GCompareFunc) compare_probe_id))) { |
486 | srd_err("Protocol decoder %s has no probe " | |
2f395bff | 487 | "'%s'.", di->decoder->name, probe_id); |
f38ec285 BV |
488 | g_free(new_probemap); |
489 | return SRD_ERR_ARG; | |
490 | } | |
491 | } | |
492 | p = sl->data; | |
493 | new_probemap[p->order] = new_probenum; | |
38ff5046 UH |
494 | srd_dbg("Setting probe mapping: %s (index %d) = probe %d.", |
495 | p->id, p->order, new_probenum); | |
496 | } | |
497 | ||
498 | srd_dbg("Final probe map:"); | |
499 | num_required_probes = g_slist_length(di->decoder->probes); | |
500 | for (i = 0; i < di->dec_num_probes; i++) { | |
501 | srd_dbg(" - index %d = probe %d (%s)", i, new_probemap[i], | |
502 | (i < num_required_probes) ? "required" : "optional"); | |
f38ec285 | 503 | } |
38ff5046 | 504 | |
f38ec285 BV |
505 | g_free(di->dec_probemap); |
506 | di->dec_probemap = new_probemap; | |
0bdadba2 | 507 | |
f38ec285 | 508 | return SRD_OK; |
0bdadba2 BV |
509 | } |
510 | ||
511 | /** | |
512 | * Create a new protocol decoder instance. | |
7ce7775c | 513 | * |
38ff5046 | 514 | * @param decoder_id Decoder 'id' field. |
0bdadba2 | 515 | * @param options GHashtable of options which override the defaults set in |
38ff5046 | 516 | * the decoder class. May be NULL. |
12243c22 | 517 | * |
a8b72b05 | 518 | * @return Pointer to a newly allocated struct srd_decoder_inst, or |
c9bfccc6 | 519 | * NULL in case of failure. |
7ce7775c | 520 | */ |
a8b72b05 | 521 | SRD_API struct srd_decoder_inst *srd_inst_new(const char *decoder_id, |
0ff2d191 | 522 | GHashTable *options) |
b2c19614 | 523 | { |
c9bfccc6 | 524 | int i; |
b2c19614 | 525 | struct srd_decoder *dec; |
a8b72b05 BV |
526 | struct srd_decoder_inst *di; |
527 | char *inst_id; | |
b2c19614 | 528 | |
7a1712c4 | 529 | srd_dbg("Creating new %s instance.", decoder_id); |
7ce7775c | 530 | |
9d122fd5 | 531 | if (!(dec = srd_decoder_get_by_id(decoder_id))) { |
0bdadba2 | 532 | srd_err("Protocol decoder %s not found.", decoder_id); |
b2c19614 | 533 | return NULL; |
0bdadba2 | 534 | } |
b2c19614 | 535 | |
a8b72b05 | 536 | if (!(di = g_try_malloc0(sizeof(struct srd_decoder_inst)))) { |
a61ece20 | 537 | srd_err("Failed to g_malloc() instance."); |
7ce7775c BV |
538 | return NULL; |
539 | } | |
0bdadba2 | 540 | |
b2c19614 | 541 | di->decoder = dec; |
38ff5046 UH |
542 | if (options) { |
543 | inst_id = g_hash_table_lookup(options, "id"); | |
544 | di->inst_id = g_strdup(inst_id ? inst_id : decoder_id); | |
545 | g_hash_table_remove(options, "id"); | |
546 | } else | |
547 | di->inst_id = g_strdup(decoder_id); | |
b2c19614 | 548 | |
361fdcaa UH |
549 | /* |
550 | * Prepare a default probe map, where samples come in the | |
f38ec285 BV |
551 | * order in which the decoder class defined them. |
552 | */ | |
553 | di->dec_num_probes = g_slist_length(di->decoder->probes) + | |
c9bfccc6 | 554 | g_slist_length(di->decoder->opt_probes); |
19a90bab | 555 | if (di->dec_num_probes) { |
c9bfccc6 UH |
556 | if (!(di->dec_probemap = |
557 | g_try_malloc(sizeof(int) * di->dec_num_probes))) { | |
a61ece20 | 558 | srd_err("Failed to g_malloc() probe map."); |
19a90bab BV |
559 | g_free(di); |
560 | return NULL; | |
561 | } | |
562 | for (i = 0; i < di->dec_num_probes; i++) | |
563 | di->dec_probemap[i] = i; | |
f38ec285 | 564 | } |
f38ec285 | 565 | |
0bdadba2 | 566 | /* Create a new instance of this decoder class. */ |
a8b72b05 | 567 | if (!(di->py_inst = PyObject_CallObject(dec->py_dec, NULL))) { |
b2c19614 | 568 | if (PyErr_Occurred()) |
aafeeaea UH |
569 | srd_exception_catch("failed to create %s instance: ", |
570 | decoder_id); | |
f38ec285 | 571 | g_free(di->dec_probemap); |
0bdadba2 | 572 | g_free(di); |
7ce7775c | 573 | return NULL; |
b2c19614 | 574 | } |
7ce7775c | 575 | |
38ff5046 | 576 | if (options && srd_inst_option_set(di, options) != SRD_OK) { |
f38ec285 | 577 | g_free(di->dec_probemap); |
0bdadba2 BV |
578 | g_free(di); |
579 | return NULL; | |
580 | } | |
b2c19614 | 581 | |
f38ec285 BV |
582 | /* Instance takes input from a frontend by default. */ |
583 | di_list = g_slist_append(di_list, di); | |
584 | ||
b2c19614 BV |
585 | return di; |
586 | } | |
587 | ||
582c8473 BV |
588 | /** |
589 | * Stack a decoder instance on top of another. | |
590 | * | |
591 | * @param di_from The instance to move. | |
592 | * @param di_to The instance on top of which di_from will be stacked. | |
593 | * | |
594 | * @return SRD_OK upon success, a (negative) error code otherwise. | |
595 | */ | |
a8b72b05 | 596 | SRD_API int srd_inst_stack(struct srd_decoder_inst *di_from, |
0ff2d191 | 597 | struct srd_decoder_inst *di_to) |
7ce7775c | 598 | { |
7ce7775c | 599 | if (!di_from || !di_to) { |
d906d3f9 | 600 | srd_err("Invalid from/to instance pair."); |
7ce7775c BV |
601 | return SRD_ERR_ARG; |
602 | } | |
603 | ||
2072ae0c BV |
604 | if (g_slist_find(di_list, di_to)) { |
605 | /* Remove from the unstacked list. */ | |
606 | di_list = g_slist_remove(di_list, di_to); | |
7ce7775c BV |
607 | } |
608 | ||
7ce7775c BV |
609 | /* Stack on top of source di. */ |
610 | di_from->next_di = g_slist_append(di_from->next_di, di_to); | |
611 | ||
612 | return SRD_OK; | |
613 | } | |
614 | ||
2072ae0c | 615 | /** |
361fdcaa UH |
616 | * Find a decoder instance by its instance ID. |
617 | * | |
618 | * Only the bottom level of instances are searched -- instances already stacked | |
619 | * on top of another one will not be found. | |
2072ae0c | 620 | * |
ed2306a6 | 621 | * @param inst_id The instance ID to be found. |
2072ae0c | 622 | * |
a8b72b05 | 623 | * @return Pointer to struct srd_decoder_inst, or NULL if not found. |
2072ae0c | 624 | */ |
abeeed8b | 625 | SRD_API struct srd_decoder_inst *srd_inst_find_by_id(const char *inst_id) |
7ce7775c BV |
626 | { |
627 | GSList *l; | |
a8b72b05 | 628 | struct srd_decoder_inst *tmp, *di; |
b2c19614 | 629 | |
7ce7775c BV |
630 | di = NULL; |
631 | for (l = di_list; l; l = l->next) { | |
632 | tmp = l->data; | |
a8b72b05 | 633 | if (!strcmp(tmp->inst_id, inst_id)) { |
7ce7775c BV |
634 | di = tmp; |
635 | break; | |
636 | } | |
637 | } | |
638 | ||
639 | return di; | |
640 | } | |
641 | ||
2072ae0c | 642 | /** |
361fdcaa UH |
643 | * Find a decoder instance by its Python object. |
644 | * | |
645 | * I.e. find that instance's instantiation of the sigrokdecode.Decoder class. | |
646 | * This will recurse to find the instance anywhere in the stack tree. | |
2072ae0c | 647 | * |
361fdcaa UH |
648 | * @param stack Pointer to a GSList of struct srd_decoder_inst, indicating the |
649 | * stack to search. To start searching at the bottom level of | |
650 | * decoder instances, pass NULL. | |
511e2123 | 651 | * @param obj The Python class instantiation. |
2072ae0c | 652 | * |
a8b72b05 | 653 | * @return Pointer to struct srd_decoder_inst, or NULL if not found. |
57790bc8 UH |
654 | * |
655 | * @private | |
2072ae0c | 656 | */ |
abeeed8b | 657 | SRD_PRIV struct srd_decoder_inst *srd_inst_find_by_obj(const GSList *stack, |
0ff2d191 | 658 | const PyObject *obj) |
2072ae0c | 659 | { |
abeeed8b | 660 | const GSList *l; |
a8b72b05 | 661 | struct srd_decoder_inst *tmp, *di; |
2072ae0c BV |
662 | |
663 | di = NULL; | |
664 | for (l = stack ? stack : di_list; di == NULL && l != NULL; l = l->next) { | |
665 | tmp = l->data; | |
a8b72b05 | 666 | if (tmp->py_inst == obj) |
2072ae0c BV |
667 | di = tmp; |
668 | else if (tmp->next_di) | |
a8b72b05 | 669 | di = srd_inst_find_by_obj(tmp->next_di, obj); |
2072ae0c BV |
670 | } |
671 | ||
672 | return di; | |
673 | } | |
674 | ||
57790bc8 | 675 | /** @private */ |
ee4ed227 | 676 | SRD_PRIV int srd_inst_start(struct srd_decoder_inst *di, PyObject *args) |
b2c19614 | 677 | { |
7ce7775c | 678 | PyObject *py_name, *py_res; |
2072ae0c | 679 | GSList *l; |
a8b72b05 | 680 | struct srd_decoder_inst *next_di; |
b2c19614 | 681 | |
7a1712c4 | 682 | srd_dbg("Calling start() method on protocol decoder instance %s.", |
a8b72b05 | 683 | di->inst_id); |
b2c19614 | 684 | |
7ce7775c | 685 | if (!(py_name = PyUnicode_FromString("start"))) { |
511e2123 | 686 | srd_err("Unable to build Python object for 'start'."); |
aafeeaea UH |
687 | srd_exception_catch("Protocol decoder instance %s: ", |
688 | di->inst_id); | |
7ce7775c BV |
689 | return SRD_ERR_PYTHON; |
690 | } | |
691 | ||
a8b72b05 | 692 | if (!(py_res = PyObject_CallMethodObjArgs(di->py_inst, |
c9bfccc6 | 693 | py_name, args, NULL))) { |
aafeeaea UH |
694 | srd_exception_catch("Protocol decoder instance %s: ", |
695 | di->inst_id); | |
7ce7775c | 696 | return SRD_ERR_PYTHON; |
b2c19614 BV |
697 | } |
698 | ||
f38ec285 BV |
699 | Py_DecRef(py_res); |
700 | Py_DecRef(py_name); | |
7ce7775c | 701 | |
361fdcaa UH |
702 | /* |
703 | * Start all the PDs stacked on top of this one. Pass along the | |
2072ae0c BV |
704 | * metadata all the way from the bottom PD, even though it's only |
705 | * applicable to logic data for now. | |
706 | */ | |
707 | for (l = di->next_di; l; l = l->next) { | |
708 | next_di = l->data; | |
a8b72b05 | 709 | srd_inst_start(next_di, args); |
2072ae0c BV |
710 | } |
711 | ||
b2c19614 BV |
712 | return SRD_OK; |
713 | } | |
714 | ||
b2c19614 BV |
715 | /** |
716 | * Run the specified decoder function. | |
717 | * | |
d906d3f9 | 718 | * @param start_samplenum The starting sample number for the buffer's sample |
7a1712c4 UH |
719 | * set, relative to the start of capture. |
720 | * @param di The decoder instance to call. Must not be NULL. | |
721 | * @param inbuf The buffer to decode. Must not be NULL. | |
722 | * @param inbuflen Length of the buffer. Must be > 0. | |
b2c19614 BV |
723 | * |
724 | * @return SRD_OK upon success, a (negative) error code otherwise. | |
57790bc8 UH |
725 | * |
726 | * @private | |
b2c19614 | 727 | */ |
12243c22 | 728 | SRD_PRIV int srd_inst_decode(uint64_t start_samplenum, |
0ff2d191 BV |
729 | const struct srd_decoder_inst *di, const uint8_t *inbuf, |
730 | uint64_t inbuflen) | |
b2c19614 | 731 | { |
d906d3f9 | 732 | PyObject *py_res; |
bc5f5a43 | 733 | srd_logic *logic; |
86528298 | 734 | uint64_t end_samplenum; |
b2c19614 | 735 | |
7a1712c4 | 736 | srd_dbg("Calling decode() on instance %s with %d bytes starting " |
a8b72b05 | 737 | "at sample %d.", di->inst_id, inbuflen, start_samplenum); |
b2c19614 | 738 | |
d906d3f9 | 739 | /* Return an error upon unusable input. */ |
7a1712c4 UH |
740 | if (!di) { |
741 | srd_dbg("empty decoder instance"); | |
d906d3f9 BV |
742 | return SRD_ERR_ARG; |
743 | } | |
7a1712c4 UH |
744 | if (!inbuf) { |
745 | srd_dbg("NULL buffer pointer"); | |
d906d3f9 BV |
746 | return SRD_ERR_ARG; |
747 | } | |
748 | if (inbuflen == 0) { | |
7a1712c4 | 749 | srd_dbg("empty buffer"); |
d906d3f9 BV |
750 | return SRD_ERR_ARG; |
751 | } | |
b2c19614 | 752 | |
361fdcaa UH |
753 | /* |
754 | * Create new srd_logic object. Each iteration around the PD's loop | |
d906d3f9 BV |
755 | * will fill one sample into this object. |
756 | */ | |
bc5f5a43 BV |
757 | logic = PyObject_New(srd_logic, &srd_logic_type); |
758 | Py_INCREF(logic); | |
abeeed8b | 759 | logic->di = (struct srd_decoder_inst *)di; |
86528298 | 760 | logic->start_samplenum = start_samplenum; |
bc5f5a43 | 761 | logic->itercnt = 0; |
abeeed8b | 762 | logic->inbuf = (uint8_t *)inbuf; |
bc5f5a43 BV |
763 | logic->inbuflen = inbuflen; |
764 | logic->sample = PyList_New(2); | |
765 | Py_INCREF(logic->sample); | |
766 | ||
a8b72b05 | 767 | Py_IncRef(di->py_inst); |
f38ec285 | 768 | end_samplenum = start_samplenum + inbuflen / di->data_unitsize; |
a8b72b05 | 769 | if (!(py_res = PyObject_CallMethod(di->py_inst, "decode", |
c9bfccc6 UH |
770 | "KKO", logic->start_samplenum, |
771 | end_samplenum, logic))) { | |
aafeeaea UH |
772 | srd_exception_catch("Protocol decoder instance %s: ", |
773 | di->inst_id); | |
0ff2d191 | 774 | return SRD_ERR_PYTHON; |
b2c19614 | 775 | } |
d906d3f9 | 776 | Py_DecRef(py_res); |
bc5f5a43 | 777 | |
b2c19614 BV |
778 | return SRD_OK; |
779 | } | |
780 | ||
57790bc8 | 781 | /** @private */ |
12243c22 | 782 | SRD_PRIV void srd_inst_free(struct srd_decoder_inst *di) |
fa12a21e BV |
783 | { |
784 | GSList *l; | |
785 | struct srd_pd_output *pdo; | |
786 | ||
a8b72b05 | 787 | srd_dbg("Freeing instance %s", di->inst_id); |
fa12a21e | 788 | |
a8b72b05 BV |
789 | Py_DecRef(di->py_inst); |
790 | g_free(di->inst_id); | |
fa12a21e BV |
791 | g_free(di->dec_probemap); |
792 | g_slist_free(di->next_di); | |
793 | for (l = di->pd_output; l; l = l->next) { | |
794 | pdo = l->data; | |
795 | g_free(pdo->proto_id); | |
796 | g_free(pdo); | |
797 | } | |
798 | g_slist_free(di->pd_output); | |
fa12a21e BV |
799 | } |
800 | ||
57790bc8 | 801 | /** @private */ |
12243c22 | 802 | SRD_PRIV void srd_inst_free_all(GSList *stack) |
fa12a21e BV |
803 | { |
804 | GSList *l; | |
a8b72b05 | 805 | struct srd_decoder_inst *di; |
fa12a21e BV |
806 | |
807 | di = NULL; | |
808 | for (l = stack ? stack : di_list; di == NULL && l != NULL; l = l->next) { | |
809 | di = l->data; | |
810 | if (di->next_di) | |
a8b72b05 BV |
811 | srd_inst_free_all(di->next_di); |
812 | srd_inst_free(di); | |
fa12a21e BV |
813 | } |
814 | if (!stack) { | |
815 | g_slist_free(di_list); | |
816 | di_list = NULL; | |
817 | } | |
fa12a21e | 818 | } |
b2c19614 | 819 | |
4895418c UH |
820 | /** @} */ |
821 | ||
822 | /** | |
823 | * @defgroup grp_session Session handling | |
824 | * | |
825 | * Starting and handling decoding sessions. | |
826 | * | |
827 | * @{ | |
828 | */ | |
829 | ||
582c8473 BV |
830 | /** |
831 | * Start a decoding session. | |
832 | * | |
833 | * Decoders, instances and stack must have been prepared beforehand. | |
834 | * | |
835 | * @param num_probes The number of probes which the incoming feed will contain. | |
836 | * @param unitsize The number of bytes per sample in the incoming feed. | |
361fdcaa | 837 | * @param samplerate The samplerate of the incoming feed. |
582c8473 BV |
838 | * |
839 | * @return SRD_OK upon success, a (negative) error code otherwise. | |
840 | */ | |
55c3c5f4 | 841 | SRD_API int srd_session_start(int num_probes, int unitsize, uint64_t samplerate) |
7ce7775c BV |
842 | { |
843 | PyObject *args; | |
2072ae0c | 844 | GSList *d; |
a8b72b05 | 845 | struct srd_decoder_inst *di; |
7ce7775c BV |
846 | int ret; |
847 | ||
38ff5046 UH |
848 | ret = SRD_OK; |
849 | ||
7a1712c4 UH |
850 | srd_dbg("Calling start() on all instances with %d probes, " |
851 | "unitsize %d samplerate %d.", num_probes, unitsize, samplerate); | |
d906d3f9 | 852 | |
361fdcaa UH |
853 | /* |
854 | * Currently only one item of metadata is passed along to decoders, | |
d906d3f9 BV |
855 | * samplerate. This can be extended as needed. |
856 | */ | |
7ce7775c | 857 | if (!(args = Py_BuildValue("{s:l}", "samplerate", (long)samplerate))) { |
511e2123 | 858 | srd_err("Unable to build Python object for metadata."); |
7ce7775c BV |
859 | return SRD_ERR_PYTHON; |
860 | } | |
861 | ||
862 | /* Run the start() method on all decoders receiving frontend data. */ | |
863 | for (d = di_list; d; d = d->next) { | |
864 | di = d->data; | |
f38ec285 BV |
865 | di->data_num_probes = num_probes; |
866 | di->data_unitsize = unitsize; | |
867 | di->data_samplerate = samplerate; | |
38ff5046 | 868 | if ((ret = srd_inst_start(di, args)) != SRD_OK) |
2072ae0c | 869 | break; |
7ce7775c BV |
870 | } |
871 | ||
d906d3f9 | 872 | Py_DecRef(args); |
7ce7775c | 873 | |
2072ae0c | 874 | return ret; |
7ce7775c BV |
875 | } |
876 | ||
582c8473 | 877 | /** |
29dad0ac | 878 | * Send a chunk of logic sample data to a running decoder session. |
582c8473 BV |
879 | * |
880 | * @param start_samplenum The sample number of the first sample in this chunk. | |
881 | * @param inbuf Pointer to sample data. | |
38ff5046 | 882 | * @param inbuflen Length in bytes of the buffer. |
582c8473 BV |
883 | * |
884 | * @return SRD_OK upon success, a (negative) error code otherwise. | |
885 | */ | |
29dad0ac | 886 | SRD_API int srd_session_send(uint64_t start_samplenum, const uint8_t *inbuf, |
0ff2d191 | 887 | uint64_t inbuflen) |
b2c19614 BV |
888 | { |
889 | GSList *d; | |
890 | int ret; | |
891 | ||
7a1712c4 | 892 | srd_dbg("Calling decode() on all instances with starting sample " |
c9bfccc6 UH |
893 | "number %" PRIu64 ", %" PRIu64 " bytes at 0x%p", |
894 | start_samplenum, inbuflen, inbuf); | |
d906d3f9 | 895 | |
e5080882 | 896 | for (d = di_list; d; d = d->next) { |
a8b72b05 | 897 | if ((ret = srd_inst_decode(start_samplenum, d->data, inbuf, |
361fdcaa | 898 | inbuflen)) != SRD_OK) |
b2c19614 BV |
899 | return ret; |
900 | } | |
901 | ||
902 | return SRD_OK; | |
903 | } | |
904 | ||
582c8473 | 905 | /** |
b33b8aa5 | 906 | * Register/add a decoder output callback function. |
582c8473 BV |
907 | * |
908 | * The function will be called when a protocol decoder sends output back | |
909 | * to the PD controller (except for Python objects, which only go up the | |
910 | * stack). | |
911 | * | |
912 | * @param output_type The output type this callback will receive. Only one | |
4c1d0670 | 913 | * callback per output type can be registered. |
361fdcaa UH |
914 | * @param cb The function to call. Must not be NULL. |
915 | * @param cb_data Private data for the callback function. Can be NULL. | |
582c8473 | 916 | */ |
b33b8aa5 | 917 | SRD_API int srd_pd_output_callback_add(int output_type, |
0ff2d191 | 918 | srd_pd_output_callback_t cb, void *cb_data) |
4fadb128 BV |
919 | { |
920 | struct srd_pd_callback *pd_cb; | |
921 | ||
7a1712c4 | 922 | srd_dbg("Registering new callback for output type %d.", output_type); |
4fadb128 | 923 | |
a61ece20 UH |
924 | if (!(pd_cb = g_try_malloc(sizeof(struct srd_pd_callback)))) { |
925 | srd_err("Failed to g_malloc() struct srd_pd_callback."); | |
4fadb128 | 926 | return SRD_ERR_MALLOC; |
a61ece20 | 927 | } |
4fadb128 BV |
928 | |
929 | pd_cb->output_type = output_type; | |
4c1d0670 | 930 | pd_cb->cb = cb; |
41a5d962 | 931 | pd_cb->cb_data = cb_data; |
4fadb128 BV |
932 | callbacks = g_slist_append(callbacks, pd_cb); |
933 | ||
934 | return SRD_OK; | |
935 | } | |
936 | ||
57790bc8 | 937 | /** @private */ |
b33b8aa5 | 938 | SRD_PRIV void *srd_pd_output_callback_find(int output_type) |
4fadb128 BV |
939 | { |
940 | GSList *l; | |
941 | struct srd_pd_callback *pd_cb; | |
942 | void *(cb); | |
943 | ||
944 | cb = NULL; | |
945 | for (l = callbacks; l; l = l->next) { | |
946 | pd_cb = l->data; | |
947 | if (pd_cb->output_type == output_type) { | |
4c1d0670 | 948 | cb = pd_cb->cb; |
4fadb128 BV |
949 | break; |
950 | } | |
951 | } | |
952 | ||
953 | return cb; | |
954 | } | |
955 | ||
511e2123 | 956 | /* This is the backend function to Python sigrokdecode.add() call. */ |
57790bc8 | 957 | /** @private */ |
aafeeaea UH |
958 | SRD_PRIV int srd_inst_pd_output_add(struct srd_decoder_inst *di, |
959 | int output_type, const char *proto_id) | |
e5080882 | 960 | { |
e5080882 | 961 | struct srd_pd_output *pdo; |
e5080882 | 962 | |
7a1712c4 | 963 | srd_dbg("Instance %s creating new output type %d for %s.", |
a8b72b05 | 964 | di->inst_id, output_type, proto_id); |
d906d3f9 | 965 | |
a61ece20 UH |
966 | if (!(pdo = g_try_malloc(sizeof(struct srd_pd_output)))) { |
967 | srd_err("Failed to g_malloc() struct srd_pd_output."); | |
e5080882 | 968 | return -1; |
a61ece20 | 969 | } |
e5080882 | 970 | |
b231546d | 971 | /* pdo_id is just a simple index, nothing is deleted from this list anyway. */ |
15969949 | 972 | pdo->pdo_id = g_slist_length(di->pd_output); |
e5080882 | 973 | pdo->output_type = output_type; |
b3b2cae8 | 974 | pdo->di = di; |
94d43b37 | 975 | pdo->proto_id = g_strdup(proto_id); |
e5080882 BV |
976 | di->pd_output = g_slist_append(di->pd_output, pdo); |
977 | ||
15969949 | 978 | return pdo->pdo_id; |
e5080882 | 979 | } |
d7dae84b UH |
980 | |
981 | /** @} */ |