/* List of decoder instances. */
static GSList *di_list = NULL;
-/* List of frontend callbacks to receive PD output. */
+/* List of frontend callbacks to receive decoder output. */
static GSList *callbacks = NULL;
/* decoder.c */
* Initialize libsigrokdecode.
*
* This initializes the Python interpreter, and creates and initializes
- * a "sigrok" Python module with a single put() method.
+ * a "sigrokdecode" Python module.
*
* Then, it searches for sigrok protocol decoder files (*.py) in the
* "decoders" subdirectory of the the sigrok installation directory.
* All decoders that are found are loaded into memory and added to an
- * internal list of decoders, which can be queried via srd_list_decoders().
+ * internal list of decoders, which can be queried via srd_decoders_list().
*
* The caller is responsible for calling the clean-up function srd_exit(),
* which will properly shut down libsigrokdecode and free its allocated memory.
* are not allowed.
*
* @param path Path to an extra directory containing protocol decoders
- * which will be added to the python sys.path, or NULL.
+ * which will be added to the Python sys.path, or NULL.
*
* @return SRD_OK upon success, a (negative) error code otherwise.
* Upon Python errors, return SRD_ERR_PYTHON. If the sigrok decoders
/* Environment variable overrides everything, for debugging. */
if ((env_path = getenv("SIGROKDECODE_DIR"))) {
- if ((ret = add_modulepath(path)) != SRD_OK) {
+ if ((ret = add_modulepath(env_path)) != SRD_OK) {
Py_Finalize();
return ret;
}
}
- if ((ret = srd_load_all_decoders()) != SRD_OK) {
- Py_Finalize();
- return ret;
- }
-
return SRD_OK;
}
{
srd_dbg("Exiting libsigrokdecode.");
- srd_unload_all_decoders();
+ srd_decoders_unload_all();
g_slist_free(pd_list);
/* Py_Finalize() returns void, any finalization errors are ignored. */
* Python modules which have the same name as a sigrok protocol decoder in
* sys.path or in the current working directory.
*
- * @param path Path to an extra directory containing protocol decoders
- * which will be added to the python sys.path, or NULL.
+ * @param path Path to the directory containing protocol decoders which shall
+ * be added to the Python sys.path, or NULL.
*
* @return SRD_OK upon success, a (negative) error code otherwise.
*/
/**
* Set options in a decoder instance.
*
+ * Handled options are removed from the hash.
+ *
* @param di Decoder instance.
* @param options A GHashTable of options to set.
*
- * Handled options are removed from the hash.
- *
* @return SRD_OK upon success, a (negative) error code otherwise.
*/
-SRD_API int srd_inst_set_options(struct srd_decoder_inst *di,
- GHashTable *options)
+SRD_API int srd_inst_options_set(struct srd_decoder_inst *di,
+ GHashTable *options)
{
PyObject *py_dec_options, *py_dec_optkeys, *py_di_options, *py_optval;
PyObject *py_optlist, *py_classval;
}
}
- /* If we got here, py_optval holds a known good new reference
+ /*
+ * If we got here, py_optval holds a known good new reference
* to the instance option to set.
*/
if (PyDict_SetItemString(py_di_options, key, py_optval) == -1)
return ret;
}
-/* Helper GComparefunc for g_slist_find_custom() in srd_inst_set_probes() */
+/* Helper GComparefunc for g_slist_find_custom() in srd_inst_probes_set() */
static gint compare_probe_id(struct srd_probe *a, char *probe_id)
{
return strcmp(a->id, probe_id);
*
* @return SRD_OK upon success, a (negative) error code otherwise.
*/
-SRD_API int srd_inst_set_probes(struct srd_decoder_inst *di,
- GHashTable *new_probes)
+SRD_API int srd_inst_probes_set(struct srd_decoder_inst *di,
+ GHashTable *new_probes)
{
GList *l;
GSList *sl;
* NULL in case of failure.
*/
SRD_API struct srd_decoder_inst *srd_inst_new(const char *decoder_id,
- GHashTable *options)
+ GHashTable *options)
{
int i;
struct srd_decoder *dec;
srd_dbg("Creating new %s instance.", decoder_id);
- if (!(dec = srd_get_decoder_by_id(decoder_id))) {
+ if (!(dec = srd_decoder_get_by_id(decoder_id))) {
srd_err("Protocol decoder %s not found.", decoder_id);
return NULL;
}
di->inst_id = g_strdup(inst_id ? inst_id : decoder_id);
g_hash_table_remove(options, "id");
- /* Prepare a default probe map, where samples come in the
+ /*
+ * Prepare a default probe map, where samples come in the
* order in which the decoder class defined them.
*/
di->dec_num_probes = g_slist_length(di->decoder->probes) +
return NULL;
}
- if (srd_inst_set_options(di, options) != SRD_OK) {
+ if (srd_inst_options_set(di, options) != SRD_OK) {
g_free(di->dec_probemap);
g_free(di);
return NULL;
return di;
}
+/**
+ * Stack a decoder instance on top of another.
+ *
+ * @param di_from The instance to move.
+ * @param di_to The instance on top of which di_from will be stacked.
+ *
+ * @return SRD_OK upon success, a (negative) error code otherwise.
+ */
SRD_API int srd_inst_stack(struct srd_decoder_inst *di_from,
struct srd_decoder_inst *di_to)
{
}
/**
- * Finds a decoder instance by its instance id, but only in the bottom
- * level of instances -- instances already stacked on top of another one
- * will not be found.
+ * Find a decoder instance by its instance ID.
+ *
+ * Only the bottom level of instances are searched -- instances already stacked
+ * on top of another one will not be found.
*
- * @param inst_id The instance id to be found.
+ * @param inst_id The instance ID to be found.
*
* @return Pointer to struct srd_decoder_inst, or NULL if not found.
*/
}
/**
- * Finds a decoder instance by its Python object, i.e. that instance's
- * instantiation of the sigrokdecode.Decoder class. This will recurse
- * to find the instance anywhere in the stack tree.
+ * Find a decoder instance by its Python object.
*
- * @param stack Pointer to a GSList of struct srd_decoder_inst,
- * indicating the stack to search. To start searching at the bottom
- * level of decoder instances, pass NULL.
+ * I.e. find that instance's instantiation of the sigrokdecode.Decoder class.
+ * This will recurse to find the instance anywhere in the stack tree.
+ *
+ * @param stack Pointer to a GSList of struct srd_decoder_inst, indicating the
+ * stack to search. To start searching at the bottom level of
+ * decoder instances, pass NULL.
* @param obj The Python class instantiation.
*
* @return Pointer to struct srd_decoder_inst, or NULL if not found.
*/
SRD_PRIV struct srd_decoder_inst *srd_inst_find_by_obj(GSList *stack,
- PyObject *obj)
+ PyObject *obj)
{
GSList *l;
struct srd_decoder_inst *tmp, *di;
Py_DecRef(py_res);
Py_DecRef(py_name);
- /* Start all the PDs stacked on top of this one. Pass along the
+ /*
+ * Start all the PDs stacked on top of this one. Pass along the
* metadata all the way from the bottom PD, even though it's only
* applicable to logic data for now.
*/
return SRD_ERR_ARG;
}
- /* Create new srd_logic object. Each iteration around the PD's loop
+ /*
+ * Create new srd_logic object. Each iteration around the PD's loop
* will fill one sample into this object.
*/
logic = PyObject_New(srd_logic, &srd_logic_type);
}
}
+/**
+ * Start a decoding session.
+ *
+ * Decoders, instances and stack must have been prepared beforehand.
+ *
+ * @param num_probes The number of probes which the incoming feed will contain.
+ * @param unitsize The number of bytes per sample in the incoming feed.
+ * @param samplerate The samplerate of the incoming feed.
+ *
+ * @return SRD_OK upon success, a (negative) error code otherwise.
+ */
SRD_API int srd_session_start(int num_probes, int unitsize, uint64_t samplerate)
{
PyObject *args;
srd_dbg("Calling start() on all instances with %d probes, "
"unitsize %d samplerate %d.", num_probes, unitsize, samplerate);
- /* Currently only one item of metadata is passed along to decoders,
+ /*
+ * Currently only one item of metadata is passed along to decoders,
* samplerate. This can be extended as needed.
*/
if (!(args = Py_BuildValue("{s:l}", "samplerate", (long)samplerate))) {
return ret;
}
-/* Feed logic samples to decoder session. */
-SRD_API int srd_session_feed(uint64_t start_samplenum, uint8_t * inbuf,
+/**
+ * Feed a chunk of logic sample data to a running decoder session.
+ *
+ * @param start_samplenum The sample number of the first sample in this chunk.
+ * @param inbuf Pointer to sample data.
+ * @param inbuf Length in bytes of the buffer.
+ *
+ * @return SRD_OK upon success, a (negative) error code otherwise.
+ */
+SRD_API int srd_session_feed(uint64_t start_samplenum, uint8_t *inbuf,
uint64_t inbuflen)
{
GSList *d;
for (d = di_list; d; d = d->next) {
if ((ret = srd_inst_decode(start_samplenum, d->data, inbuf,
- inbuflen)) != SRD_OK)
+ inbuflen)) != SRD_OK)
return ret;
}
return SRD_OK;
}
+/**
+ * Register a decoder output callback function.
+ *
+ * The function will be called when a protocol decoder sends output back
+ * to the PD controller (except for Python objects, which only go up the
+ * stack).
+ *
+ * @param output_type The output type this callback will receive. Only one
+ * callback per output type can be registered.
+ * @param cb The function to call. Must not be NULL.
+ * @param cb_data Private data for the callback function. Can be NULL.
+ */
SRD_API int srd_register_callback(int output_type,
- srd_pd_output_callback_t cb, void *user_data)
+ srd_pd_output_callback_t cb, void *cb_data)
{
struct srd_pd_callback *pd_cb;
}
pd_cb->output_type = output_type;
- pd_cb->callback = cb;
- pd_cb->user_data = user_data;
+ pd_cb->cb = cb;
+ pd_cb->cb_data = cb_data;
callbacks = g_slist_append(callbacks, pd_cb);
return SRD_OK;
}
-SRD_API void *srd_find_callback(int output_type)
+SRD_PRIV void *srd_find_callback(int output_type)
{
GSList *l;
struct srd_pd_callback *pd_cb;
for (l = callbacks; l; l = l->next) {
pd_cb = l->data;
if (pd_cb->output_type == output_type) {
- cb = pd_cb->callback;
+ cb = pd_cb->cb;
break;
}
}
projects / libsigrokdecode.git / blobdiff