static const uint64_t timebases[][2] = {
/* picoseconds */
- { 20, 1000000000000 },
- { 50, 1000000000000 },
- { 100, 1000000000000 },
- { 200, 1000000000000 },
- { 500, 1000000000000 },
+ { 20, UINT64_C(1000000000000) },
+ { 50, UINT64_C(1000000000000) },
+ { 100, UINT64_C(1000000000000) },
+ { 200, UINT64_C(1000000000000) },
+ { 500, UINT64_C(1000000000000) },
/* nanoseconds */
{ 1, 1000000000 },
{ 2, 1000000000 },
return SR_OK;
}
-SR_PRIV int lecroy_xstream_update_sample_rate(const struct sr_dev_inst *sdi)
+SR_PRIV int lecroy_xstream_channel_state_set(const struct sr_dev_inst *sdi,
+ const int ch_index, gboolean ch_state)
+{
+ GSList *l;
+ struct sr_channel *ch;
+ struct dev_context *devc = NULL;
+ struct scope_state *state;
+ char command[MAX_COMMAND_SIZE];
+ gboolean chan_found;
+ int result;
+
+ result = SR_OK;
+
+ devc = sdi->priv;
+ state = devc->model_state;
+ chan_found = FALSE;
+
+ for (l = sdi->channels; l; l = l->next) {
+ ch = l->data;
+
+ switch (ch->type) {
+ case SR_CHANNEL_ANALOG:
+ if (ch->index == ch_index) {
+ g_snprintf(command, sizeof(command), "C%d:TRACE %s", ch_index + 1,
+ (ch_state ? "ON" : "OFF"));
+ if ((sr_scpi_send(sdi->conn, command) != SR_OK ||
+ sr_scpi_get_opc(sdi->conn) != SR_OK)) {
+ result = SR_ERR;
+ break;
+ }
+
+ ch->enabled = ch_state;
+ state->analog_channels[ch->index].state = ch_state;
+ chan_found = TRUE;
+ break;
+ }
+ break;
+ default:
+ result = SR_ERR_NA;
+ }
+ }
+
+ if ((result == SR_OK) && !chan_found)
+ result = SR_ERR_BUG;
+
+ return result;
+}
+
+SR_PRIV int lecroy_xstream_update_sample_rate(const struct sr_dev_inst *sdi,
+ int num_of_samples)
{
struct dev_context *devc;
struct scope_state *state;
const struct scope_config *config;
- float memsize, timediv;
+ double time_div;
devc = sdi->priv;
- state = devc->model_state;
config = devc->model_config;
+ state = devc->model_state;
- if (sr_scpi_get_float(sdi->conn, "MEMORY_SIZE?", &memsize) != SR_OK)
- return SR_ERR;
-
- if (sr_scpi_get_float(sdi->conn, "TIME_DIV?", &timediv) != SR_OK)
+ if (sr_scpi_get_double(sdi->conn, "TIME_DIV?", &time_div) != SR_OK)
return SR_ERR;
- state->sample_rate = 1 / ((timediv * config->num_xdivs) / memsize);
+ state->sample_rate = num_of_samples / (time_div * config->num_xdivs);
return SR_OK;
}
}
i++;
}
+ g_free(tmp_str);
if (!trig_source || scope_state_get_array_option(trig_source,
config->trigger_sources, config->num_trigger_sources,
if (scope_state_get_array_option(tmp_str, config->trigger_slopes,
config->num_trigger_slopes, &state->trigger_slope) != SR_OK)
return SR_ERR;
+ g_free(tmp_str);
if (sr_scpi_get_float(sdi->conn, "TRIG_DELAY?", &state->horiz_triggerpos) != SR_OK)
return SR_ERR;
- if (lecroy_xstream_update_sample_rate(sdi) != SR_OK)
- return SR_ERR;
-
sr_info("Fetching finished.");
scope_state_dump(config, state);
SR_PRIV int lecroy_xstream_receive_data(int fd, int revents, void *cb_data)
{
+ char command[MAX_COMMAND_SIZE];
struct sr_channel *ch;
struct sr_dev_inst *sdi;
struct dev_context *devc;
+ struct scope_state *state;
struct sr_datafeed_packet packet;
GByteArray *data;
struct sr_datafeed_analog analog;
struct sr_analog_encoding encoding;
struct sr_analog_meaning meaning;
struct sr_analog_spec spec;
- char buf[8];
(void)fd;
(void)revents;
- data = NULL;
-
if (!(sdi = cb_data))
return TRUE;
return TRUE;
ch = devc->current_channel->data;
-
- /*
- * Send "frame begin" packet upon reception of data for the
- * first enabled channel.
- */
- if (devc->current_channel == devc->enabled_channels) {
- packet.type = SR_DF_FRAME_BEGIN;
- sr_session_send(sdi, &packet);
- }
+ state = devc->model_state;
if (ch->type != SR_CHANNEL_ANALOG)
return SR_ERR;
- /* Pass on the received data of the channel(s). */
- if (sr_scpi_read_data(sdi->conn, buf, 4) != 4) {
- sr_err("Reading header failed.");
- return TRUE;
- }
-
+ data = NULL;
if (sr_scpi_get_block(sdi->conn, NULL, &data) != SR_OK) {
if (data)
g_byte_array_free(data, TRUE);
if (lecroy_waveform_to_analog(data, &analog) != SR_OK)
return SR_ERR;
+ if (analog.num_samples == 0) {
+ g_free(analog.data);
+ g_byte_array_free(data, TRUE);
+
+ /* No data available, we have to acquire data first. */
+ g_snprintf(command, sizeof(command), "ARM;WAIT;*OPC;C%d:WAVEFORM?", ch->index + 1);
+ sr_scpi_send(sdi->conn, command);
+
+ state->sample_rate = 0;
+ return TRUE;
+ } else {
+ /* Update sample rate if needed. */
+ if (state->sample_rate == 0)
+ if (lecroy_xstream_update_sample_rate(sdi, analog.num_samples) != SR_OK) {
+ g_free(analog.data);
+ g_byte_array_free(data, TRUE);
+ return SR_ERR;
+ }
+ }
+
+ /*
+ * Send "frame begin" packet upon reception of data for the
+ * first enabled channel.
+ */
+ if (devc->current_channel == devc->enabled_channels)
+ std_session_send_df_frame_begin(sdi);
+
meaning.channels = g_slist_append(NULL, ch);
packet.payload = &analog;
packet.type = SR_DF_ANALOG;
return TRUE;
}
- packet.type = SR_DF_FRAME_END;
- sr_session_send(sdi, &packet);
+ std_session_send_df_frame_end(sdi);
/*
* End of frame was reached. Stop acquisition after the specified
* number of frames, or continue reception by starting over at
* the first enabled channel.
*/
- if (++devc->num_frames == devc->frame_limit) {
+ devc->num_frames++;
+ if (devc->frame_limit && (devc->num_frames == devc->frame_limit)) {
sr_dev_acquisition_stop(sdi);
} else {
devc->current_channel = devc->enabled_channels;
+
+ /* Wait for trigger, then begin fetching data. */
+ g_snprintf(command, sizeof(command), "ARM;WAIT;*OPC");
+ sr_scpi_send(sdi->conn, command);
+
lecroy_xstream_request_data(sdi);
}
projects / libsigrok.git / blobdiff