GList *l;
GSList *sl;
struct srd_probe *p;
- int *new_probemap, new_probenum;
+ int *new_probemap, new_probenum, num_required_probes, num_probes, i;
char *probe_id;
- int i, num_required_probes;
srd_dbg("set probes called for instance %s with list of %d probes",
di->inst_id, g_hash_table_size(new_probes));
for (i = 0; i < di->dec_num_probes; i++)
new_probemap[i] = -1;
+ num_probes = 0;
for (l = g_hash_table_get_keys(new_probes); l; l = l->next) {
probe_id = l->data;
probe_val = g_hash_table_lookup(new_probes, probe_id);
new_probemap[p->order] = new_probenum;
srd_dbg("Setting probe mapping: %s (index %d) = probe %d.",
p->id, p->order, new_probenum);
+ num_probes++;
}
+ di->data_unitsize = (num_probes + 7) / 8;
srd_dbg("Final probe map:");
num_required_probes = g_slist_length(di->decoder->probes);
for (i = 0; i < di->dec_num_probes; i++)
di->dec_probemap[i] = i;
}
+ di->data_unitsize = (di->dec_num_probes + 7) / 8;
/* Create a new instance of this decoder class. */
if (!(di->py_inst = PyObject_CallObject(dec->py_dec, NULL))) {
}
/** @private */
-SRD_PRIV int srd_inst_start(struct srd_decoder_inst *di, PyObject *args)
+SRD_PRIV int srd_inst_start(struct srd_decoder_inst *di)
{
- PyObject *py_name, *py_res;
+ PyObject *py_res;
GSList *l;
struct srd_decoder_inst *next_di;
+ int ret;
srd_dbg("Calling start() method on protocol decoder instance %s.",
- di->inst_id);
+ di->inst_id);
- if (!(py_name = PyUnicode_FromString("start"))) {
- srd_err("Unable to build Python object for 'start'.");
+ if (!(py_res = PyObject_CallMethod(di->py_inst, "start", NULL))) {
srd_exception_catch("Protocol decoder instance %s: ",
- di->inst_id);
+ di->inst_id);
return SRD_ERR_PYTHON;
}
-
- if (!(py_res = PyObject_CallMethodObjArgs(di->py_inst,
- py_name, args, NULL))) {
- srd_exception_catch("Protocol decoder instance %s: ",
- di->inst_id);
- return SRD_ERR_PYTHON;
- }
-
Py_DecRef(py_res);
- Py_DecRef(py_name);
- /*
- * 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.
- */
+ /* Start all the PDs stacked on top of this one. */
for (l = di->next_di; l; l = l->next) {
next_di = l->data;
- srd_inst_start(next_di, args);
+ if ((ret = srd_inst_start(next_di)) != SRD_OK)
+ return ret;
}
return SRD_OK;
/**
* Run the specified decoder function.
*
+ * @param di The decoder instance to call. Must not be NULL.
* @param start_samplenum The starting sample number for the buffer's sample
* set, relative to the start of capture.
- * @param di The decoder instance to call. Must not be NULL.
+ * @param end_samplenum The ending sample number for the buffer's sample
+ * set, relative to the start of capture.
* @param inbuf The buffer to decode. Must not be NULL.
* @param inbuflen Length of the buffer. Must be > 0.
*
*
* @since 0.1.0
*/
-SRD_PRIV int srd_inst_decode(uint64_t start_samplenum,
- const struct srd_decoder_inst *di, const uint8_t *inbuf,
- uint64_t inbuflen)
+SRD_PRIV int srd_inst_decode(const struct srd_decoder_inst *di,
+ uint64_t start_samplenum, uint64_t end_samplenum,
+ const uint8_t *inbuf, uint64_t inbuflen)
{
PyObject *py_res;
srd_logic *logic;
- uint64_t end_samplenum;
srd_dbg("Calling decode() on instance %s with %" PRIu64 " bytes "
"starting at sample %" PRIu64 ".", di->inst_id, inbuflen,
Py_INCREF(logic->sample);
Py_IncRef(di->py_inst);
- end_samplenum = start_samplenum + inbuflen / di->data_unitsize;
if (!(py_res = PyObject_CallMethod(di->py_inst, "decode",
- "KKO", logic->start_samplenum,
- end_samplenum, logic))) {
- srd_exception_catch("Protocol decoder instance %s: ",
- di->inst_id);
+ "KKO", start_samplenum, end_samplenum, logic))) {
+ srd_exception_catch("Protocol decoder instance %s: ", di->inst_id);
return SRD_ERR_PYTHON;
}
Py_DecRef(py_res);
if (!(*sess = g_try_malloc(sizeof(struct srd_session))))
return SRD_ERR_MALLOC;
(*sess)->session_id = ++max_session_id;
- (*sess)->num_probes = (*sess)->unitsize = (*sess)->samplerate = 0;
(*sess)->di_list = (*sess)->callbacks = NULL;
/* Keep a list of all sessions, so we can clean up as needed. */
*/
SRD_API int srd_session_start(struct srd_session *sess)
{
- PyObject *args;
GSList *d;
struct srd_decoder_inst *di;
int ret;
srd_err("Invalid session pointer.");
return SRD_ERR;
}
- if (sess->num_probes == 0) {
- srd_err("Session has invalid number of probes.");
- return SRD_ERR;
- }
- if (sess->unitsize == 0) {
- srd_err("Session has invalid unitsize.");
- return SRD_ERR;
- }
- if (sess->samplerate == 0) {
- srd_err("Session has invalid samplerate.");
- return SRD_ERR;
- }
- ret = SRD_OK;
-
- srd_dbg("Calling start() on all instances in session %d with "
- "%" PRIu64 " probes, unitsize %" PRIu64
- ", samplerate %" PRIu64 ".", sess->session_id,
- sess->num_probes, sess->unitsize, sess->samplerate);
-
- /*
- * 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)sess->samplerate))) {
- srd_err("Unable to build Python object for metadata.");
- return SRD_ERR_PYTHON;
- }
+ srd_dbg("Calling start() on all instances in session %d.", sess->session_id);
/* Run the start() method on all decoders receiving frontend data. */
+ ret = SRD_OK;
for (d = sess->di_list; d; d = d->next) {
di = d->data;
- di->data_num_probes = sess->num_probes;
- di->data_unitsize = sess->unitsize;
- di->data_samplerate = sess->samplerate;
- if ((ret = srd_inst_start(di, args)) != SRD_OK)
+ if ((ret = srd_inst_start(di)) != SRD_OK)
break;
}
- Py_DecRef(args);
-
return ret;
}
+SRD_PRIV int srd_inst_send_meta(struct srd_decoder_inst *di, int key,
+ GVariant *data)
+{
+ PyObject *py_ret;
+
+ if (key != SRD_CONF_SAMPLERATE)
+ /* This is the only key we pass on to the decoder for now. */
+ return SRD_OK;
+
+ if (!PyObject_HasAttrString(di->py_inst, "metadata"))
+ /* This decoder doesn't want metadata, that's fine. */
+ return SRD_OK;
+
+ py_ret = PyObject_CallMethod(di->py_inst, "metadata", "lK",
+ (long)SRD_CONF_SAMPLERATE,
+ (unsigned long long)g_variant_get_uint64(data));
+ Py_XDECREF(py_ret);
+
+ return SRD_OK;
+}
+
/**
- * Set a configuration key in a session.
+ * Set a metadata configuration key in a session.
*
* @param sess The session to configure.
* @param key The configuration key (SRD_CONF_*).
*
* @since 0.3.0
*/
-SRD_API int srd_session_config_set(struct srd_session *sess, int key,
+SRD_API int srd_session_metadata_set(struct srd_session *sess, int key,
GVariant *data)
{
+ GSList *l;
+ int ret;
if (session_is_valid(sess) != SRD_OK) {
srd_err("Invalid session.");
return SRD_ERR_ARG;
}
- if (!data) {
- srd_err("Invalid config data.");
+ if (key != SRD_CONF_SAMPLERATE) {
+ srd_err("Unknown config key %d.", key);
return SRD_ERR_ARG;
}
- if (!g_variant_is_of_type(data, G_VARIANT_TYPE_UINT64)) {
- srd_err("Value for key %d should be of type uint64.", key);
- return SRD_ERR_ARG;
- }
+ srd_dbg("Setting session %d samplerate to %"PRIu64".",
+ sess->session_id, g_variant_get_uint64(data));
- switch (key) {
- case SRD_CONF_NUM_PROBES:
- sess->num_probes = g_variant_get_uint64(data);
- break;
- case SRD_CONF_UNITSIZE:
- sess->unitsize = g_variant_get_uint64(data);
- break;
- case SRD_CONF_SAMPLERATE:
- sess->samplerate = g_variant_get_uint64(data);
- break;
- default:
- srd_err("Cannot set config for unknown key %d.", key);
- return SRD_ERR_ARG;
+ ret = SRD_OK;
+ for (l = sess->di_list; l; l = l->next) {
+ if ((ret = srd_inst_send_meta(l->data, key, data)) != SRD_OK)
+ break;
}
g_variant_unref(data);
- return SRD_OK;
+ return ret;
}
/**
* Send a chunk of logic sample data to a running decoder session.
*
+ * The logic samples must be arranged in probe order, in the least
+ * amount of space possible. If no probes were configured, the default
+ * probe set consists of all required probes + all optional probes.
+ *
+ * The size of a sample in inbuf is the minimum number of bytes needed
+ * to store the configured (or default) probes.
+ *
* @param sess The session to use.
* @param start_samplenum The sample number of the first sample in this chunk.
+ * @param end_samplenum The sample number of the last sample in this chunk.
* @param inbuf Pointer to sample data.
* @param inbuflen Length in bytes of the buffer.
*
*
* @since 0.3.0
*/
-SRD_API int srd_session_send(struct srd_session *sess, uint64_t start_samplenum,
+SRD_API int srd_session_send(struct srd_session *sess,
+ uint64_t start_samplenum, uint64_t end_samplenum,
const uint8_t *inbuf, uint64_t inbuflen)
{
GSList *d;
start_samplenum, inbuflen, inbuf);
for (d = sess->di_list; d; d = d->next) {
- if ((ret = srd_inst_decode(start_samplenum, d->data, inbuf,
- inbuflen)) != SRD_OK)
+ if ((ret = srd_inst_decode(d->data, start_samplenum,
+ end_samplenum, inbuf, inbuflen)) != SRD_OK)
return ret;
}
projects / libsigrokdecode.git / commitdiff