+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2012 Martin Ling <martin-git@earth.li>
- * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
- * Copyright (C) 2013 Mathias Grimmberger <mgri@zaphod.sax.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdlib.h>
-#include <stdarg.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <math.h>
-#include <ctype.h>
-#include <time.h>
-#include <glib.h>
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
-#include "protocol.h"
-
-/*
- * This is a unified protocol driver for the DS1000 and DS2000 series.
- *
- * DS1000 support tested with a Rigol DS1102D.
- *
- * DS2000 support tested with a Rigol DS2072 using firmware version 01.01.00.02.
- *
- * The Rigol DS2000 series scopes try to adhere to the IEEE 488.2 (I think)
- * standard. If you want to read it - it costs real money...
- *
- * Every response from the scope has a linefeed appended because the
- * standard says so. In principle this could be ignored because sending the
- * next command clears the output queue of the scope. This driver tries to
- * avoid doing that because it may cause an error being generated inside the
- * scope and who knows what bugs the firmware has WRT this.
- *
- * Waveform data is transferred in a format called "arbitrary block program
- * data" specified in IEEE 488.2. See Agilents programming manuals for their
- * 2000/3000 series scopes for a nice description.
- *
- * Each data block from the scope has a header, e.g. "#900000001400".
- * The '#' marks the start of a block.
- * Next is one ASCII decimal digit between 1 and 9, this gives the number of
- * ASCII decimal digits following.
- * Last are the ASCII decimal digits giving the number of bytes (not
- * samples!) in the block.
- *
- * After this header as many data bytes as indicated follow.
- *
- * Each data block has a trailing linefeed too.
- */
-
-static int parse_int(const char *str, int *ret)
-{
- char *e;
- long tmp;
-
- errno = 0;
- tmp = strtol(str, &e, 10);
- if (e == str || *e != '\0') {
- sr_dbg("Failed to parse integer: '%s'", str);
- return SR_ERR;
- }
- if (errno) {
- sr_dbg("Failed to parse integer: '%s', numerical overflow", str);
- return SR_ERR;
- }
- if (tmp > INT_MAX || tmp < INT_MIN) {
- sr_dbg("Failed to parse integer: '%s', value to large/small", str);
- return SR_ERR;
- }
-
- *ret = (int)tmp;
- return SR_OK;
-}
-
-/* Set the next event to wait for in rigol_ds_receive */
-static void rigol_ds_set_wait_event(struct dev_context *devc, enum wait_events event)
-{
- if (event == WAIT_STOP)
- devc->wait_status = 2;
- else
- devc->wait_status = 1;
- devc->wait_event = event;
-}
-
-/*
- * Waiting for a event will return a timeout after 2 to 3 seconds in order
- * to not block the application.
- */
-static int rigol_ds_event_wait(const struct sr_dev_inst *sdi, char status1, char status2)
-{
- char *buf;
- struct dev_context *devc;
- time_t start;
-
- if (!(devc = sdi->priv))
- return SR_ERR;
-
- start = time(NULL);
-
- /*
- * Trigger status may return:
- * "TD" or "T'D" - triggered
- * "AUTO" - autotriggered
- * "RUN" - running
- * "WAIT" - waiting for trigger
- * "STOP" - stopped
- */
-
- if (devc->wait_status == 1) {
- do {
- if (time(NULL) - start >= 3) {
- sr_dbg("Timeout waiting for trigger");
- return SR_ERR_TIMEOUT;
- }
-
- if (sr_scpi_get_string(sdi->conn, ":TRIG:STAT?", &buf) != SR_OK)
- return SR_ERR;
- } while (buf[0] == status1 || buf[0] == status2);
-
- devc->wait_status = 2;
- }
- if (devc->wait_status == 2) {
- do {
- if (time(NULL) - start >= 3) {
- sr_dbg("Timeout waiting for trigger");
- return SR_ERR_TIMEOUT;
- }
-
- if (sr_scpi_get_string(sdi->conn, ":TRIG:STAT?", &buf) != SR_OK)
- return SR_ERR;
- } while (buf[0] != status1 && buf[0] != status2);
-
- rigol_ds_set_wait_event(devc, WAIT_NONE);
- }
-
- return SR_OK;
-}
-
-/*
- * For live capture we need to wait for a new trigger event to ensure that
- * sample data is not returned twice.
- *
- * Unfortunately this will never really work because for sufficiently fast
- * timebases and trigger rates it just can't catch the status changes.
- *
- * What would be needed is a trigger event register with autoreset like the
- * Agilents have. The Rigols don't seem to have anything like this.
- *
- * The workaround is to only wait for the trigger when the timebase is slow
- * enough. Of course this means that for faster timebases sample data can be
- * returned multiple times, this effect is mitigated somewhat by sleeping
- * for about one sweep time in that case.
- */
-static int rigol_ds_trigger_wait(const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- long s;
-
- if (!(devc = sdi->priv))
- return SR_ERR;
-
- /*
- * If timebase < 50 msecs/DIV just sleep about one sweep time except
- * for really fast sweeps.
- */
- if (devc->timebase < 0.0499) {
- if (devc->timebase > 0.99e-6) {
- /*
- * Timebase * num hor. divs * 85(%) * 1e6(usecs) / 100
- * -> 85 percent of sweep time
- */
- s = (devc->timebase * devc->model->series->num_horizontal_divs
- * 85e6) / 100L;
- sr_spew("Sleeping for %ld usecs instead of trigger-wait", s);
- g_usleep(s);
- }
- rigol_ds_set_wait_event(devc, WAIT_NONE);
- return SR_OK;
- } else {
- return rigol_ds_event_wait(sdi, 'T', 'A');
- }
-}
-
-/* Wait for scope to got to "Stop" in single shot mode */
-static int rigol_ds_stop_wait(const struct sr_dev_inst *sdi)
-{
- return rigol_ds_event_wait(sdi, 'S', 'S');
-}
-
-/* Check that a single shot acquisition actually succeeded on the DS2000 */
-static int rigol_ds_check_stop(const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- struct sr_channel *ch;
- int tmp;
-
- if (!(devc = sdi->priv))
- return SR_ERR;
-
- ch = devc->channel_entry->data;
-
- if (devc->model->series->protocol <= PROTOCOL_V2)
- return SR_OK;
-
- if (rigol_ds_config_set(sdi, ":WAV:SOUR CHAN%d",
- ch->index + 1) != SR_OK)
- return SR_ERR;
- /* Check that the number of samples will be accepted */
- if (rigol_ds_config_set(sdi, ":WAV:POIN %d", devc->analog_frame_size) != SR_OK)
- return SR_ERR;
- if (sr_scpi_get_int(sdi->conn, "*ESR?", &tmp) != SR_OK)
- return SR_ERR;
- /*
- * If we get an "Execution error" the scope went from "Single" to
- * "Stop" without actually triggering. There is no waveform
- * displayed and trying to download one will fail - the scope thinks
- * it has 1400 samples (like display memory) and the driver thinks
- * it has a different number of samples.
- *
- * In that case just try to capture something again. Might still
- * fail in interesting ways.
- *
- * Ain't firmware fun?
- */
- if (tmp & 0x10) {
- sr_warn("Single shot acquisition failed, retrying...");
- /* Sleep a bit, otherwise the single shot will often fail */
- g_usleep(500000);
- rigol_ds_config_set(sdi, ":SING");
- rigol_ds_set_wait_event(devc, WAIT_STOP);
- return SR_ERR;
- }
-
- return SR_OK;
-}
-
-/* Wait for enough data becoming available in scope output buffer */
-static int rigol_ds_block_wait(const struct sr_dev_inst *sdi)
-{
- char *buf;
- struct dev_context *devc;
- time_t start;
- int len;
-
- if (!(devc = sdi->priv))
- return SR_ERR;
-
- if (devc->model->series->protocol >= PROTOCOL_V3) {
-
- start = time(NULL);
-
- do {
- if (time(NULL) - start >= 3) {
- sr_dbg("Timeout waiting for data block");
- return SR_ERR_TIMEOUT;
- }
-
- /*
- * The scope copies data really slowly from sample
- * memory to its output buffer, so try not to bother
- * it too much with SCPI requests but don't wait too
- * long for short sample frame sizes.
- */
- g_usleep(devc->analog_frame_size < 15000 ? 100000 : 1000000);
-
- /* "READ,nnnn" (still working) or "IDLE,nnnn" (finished) */
- if (sr_scpi_get_string(sdi->conn, ":WAV:STAT?", &buf) != SR_OK)
- return SR_ERR;
-
- if (parse_int(buf + 5, &len) != SR_OK)
- return SR_ERR;
- } while (buf[0] == 'R' && len < 1000000);
- }
-
- rigol_ds_set_wait_event(devc, WAIT_NONE);
-
- return SR_OK;
-}
-
-/* Send a configuration setting. */
-SR_PRIV int rigol_ds_config_set(const struct sr_dev_inst *sdi, const char *format, ...)
-{
- struct dev_context *devc = sdi->priv;
- va_list args;
- int ret;
-
- va_start(args, format);
- ret = sr_scpi_send_variadic(sdi->conn, format, args);
- va_end(args);
-
- if (ret != SR_OK)
- return SR_ERR;
-
- if (devc->model->series->protocol == PROTOCOL_V2) {
- /* The DS1000 series needs this stupid delay, *OPC? doesn't work. */
- sr_spew("delay %dms", 100);
- g_usleep(100000);
- return SR_OK;
- } else {
- return sr_scpi_get_opc(sdi->conn);
- }
-}
-
-/* Start capturing a new frameset */
-SR_PRIV int rigol_ds_capture_start(const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- gchar *trig_mode;
-
- if (!(devc = sdi->priv))
- return SR_ERR;
-
- sr_dbg("Starting data capture for frameset %lu of %lu",
- devc->num_frames + 1, devc->limit_frames);
-
- switch (devc->model->series->protocol) {
- case PROTOCOL_V1:
- rigol_ds_set_wait_event(devc, WAIT_TRIGGER);
- break;
- case PROTOCOL_V2:
- if (devc->data_source == DATA_SOURCE_LIVE) {
- if (rigol_ds_config_set(sdi, ":WAV:POIN:MODE NORMAL") != SR_OK)
- return SR_ERR;
- rigol_ds_set_wait_event(devc, WAIT_TRIGGER);
- } else {
- if (rigol_ds_config_set(sdi, ":STOP") != SR_OK)
- return SR_ERR;
- if (rigol_ds_config_set(sdi, ":WAV:POIN:MODE RAW") != SR_OK)
- return SR_ERR;
- if (sr_scpi_get_string(sdi->conn, ":TRIG:MODE?", &trig_mode) != SR_OK)
- return SR_ERR;
- if (rigol_ds_config_set(sdi, ":TRIG:%s:SWE SING", trig_mode) != SR_OK)
- return SR_ERR;
- if (rigol_ds_config_set(sdi, ":RUN") != SR_OK)
- return SR_ERR;
- rigol_ds_set_wait_event(devc, WAIT_STOP);
- }
- break;
- case PROTOCOL_V3:
- if (rigol_ds_config_set(sdi, ":WAV:FORM BYTE") != SR_OK)
- return SR_ERR;
- if (devc->data_source == DATA_SOURCE_LIVE) {
- if (rigol_ds_config_set(sdi, ":WAV:MODE NORM") != SR_OK)
- return SR_ERR;
- rigol_ds_set_wait_event(devc, WAIT_TRIGGER);
- } else {
- if (rigol_ds_config_set(sdi, ":WAV:MODE RAW") != SR_OK)
- return SR_ERR;
- if (rigol_ds_config_set(sdi, ":SING") != SR_OK)
- return SR_ERR;
- rigol_ds_set_wait_event(devc, WAIT_STOP);
- }
- break;
- }
-
- return SR_OK;
-}
-
-/* Start reading data from the current channel */
-SR_PRIV int rigol_ds_channel_start(const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- struct sr_channel *ch;
-
- if (!(devc = sdi->priv))
- return SR_ERR;
-
- ch = devc->channel_entry->data;
-
- sr_dbg("Starting reading data from channel %d", ch->index + 1);
-
- if (devc->model->series->protocol <= PROTOCOL_V2) {
- if (ch->type == SR_CHANNEL_LOGIC) {
- if (sr_scpi_send(sdi->conn, ":WAV:DATA? DIG") != SR_OK)
- return SR_ERR;
- } else {
- if (sr_scpi_send(sdi->conn, ":WAV:DATA? CHAN%d",
- ch->index + 1) != SR_OK)
- return SR_ERR;
- }
- rigol_ds_set_wait_event(devc, WAIT_NONE);
- } else {
- if (rigol_ds_config_set(sdi, ":WAV:SOUR CHAN%d",
- ch->index + 1) != SR_OK)
- return SR_ERR;
- if (devc->data_source != DATA_SOURCE_LIVE) {
- if (rigol_ds_config_set(sdi, ":WAV:RES") != SR_OK)
- return SR_ERR;
- if (rigol_ds_config_set(sdi, ":WAV:BEG") != SR_OK)
- return SR_ERR;
- }
- }
-
- rigol_ds_set_wait_event(devc, WAIT_BLOCK);
-
- devc->num_channel_bytes = 0;
- devc->num_header_bytes = 0;
- devc->num_block_bytes = 0;
-
- return SR_OK;
-}
-
-/* Read the header of a data block */
-static int rigol_ds_read_header(struct sr_dev_inst *sdi)
-{
- struct sr_scpi_dev_inst *scpi = sdi->conn;
- struct dev_context *devc = sdi->priv;
- char *buf = (char *) devc->buffer;
- size_t header_length;
- int ret;
-
- /* Try to read the hashsign and length digit. */
- if (devc->num_header_bytes < 2) {
- ret = sr_scpi_read_data(scpi, buf + devc->num_header_bytes,
- 2 - devc->num_header_bytes);
- if (ret < 0) {
- sr_err("Read error while reading data header.");
- return SR_ERR;
- }
- devc->num_header_bytes += ret;
- }
-
- if (devc->num_header_bytes < 2)
- return 0;
-
- if (buf[0] != '#' || !isdigit(buf[1]) || buf[1] == '0') {
- sr_err("Received invalid data block header '%c%c'.", buf[0], buf[1]);
- return SR_ERR;
- }
-
- header_length = 2 + buf[1] - '0';
-
- /* Try to read the length. */
- if (devc->num_header_bytes < header_length) {
- ret = sr_scpi_read_data(scpi, buf + devc->num_header_bytes,
- header_length - devc->num_header_bytes);
- if (ret < 0) {
- sr_err("Read error while reading data header.");
- return SR_ERR;
- }
- devc->num_header_bytes += ret;
- }
-
- if (devc->num_header_bytes < header_length)
- return 0;
-
- /* Read the data length. */
- buf[header_length] = '\0';
-
- if (parse_int(buf + 2, &ret) != SR_OK) {
- sr_err("Received invalid data block length '%s'.", buf + 2);
- return -1;
- }
-
- sr_dbg("Received data block header: '%s' -> block length %d", buf, ret);
-
- return ret;
-}
-
-SR_PRIV int rigol_ds_receive(int fd, int revents, void *cb_data)
-{
- struct sr_dev_inst *sdi;
- struct sr_scpi_dev_inst *scpi;
- struct dev_context *devc;
- struct sr_datafeed_packet packet;
- struct sr_datafeed_analog analog;
- struct sr_datafeed_logic logic;
- double vdiv, offset;
- int len, i, vref;
- struct sr_channel *ch;
- gsize expected_data_bytes;
-
- (void)fd;
-
- if (!(sdi = cb_data))
- return TRUE;
-
- if (!(devc = sdi->priv))
- return TRUE;
-
- scpi = sdi->conn;
-
- if (revents == G_IO_IN || revents == 0) {
- switch(devc->wait_event) {
- case WAIT_NONE:
- break;
- case WAIT_TRIGGER:
- if (rigol_ds_trigger_wait(sdi) != SR_OK)
- return TRUE;
- if (rigol_ds_channel_start(sdi) != SR_OK)
- return TRUE;
- return TRUE;
- case WAIT_BLOCK:
- if (rigol_ds_block_wait(sdi) != SR_OK)
- return TRUE;
- break;
- case WAIT_STOP:
- if (rigol_ds_stop_wait(sdi) != SR_OK)
- return TRUE;
- if (rigol_ds_check_stop(sdi) != SR_OK)
- return TRUE;
- if (rigol_ds_channel_start(sdi) != SR_OK)
- return TRUE;
- return TRUE;
- default:
- sr_err("BUG: Unknown event target encountered");
- }
-
- ch = devc->channel_entry->data;
-
- expected_data_bytes = ch->type == SR_CHANNEL_ANALOG ?
- devc->analog_frame_size : devc->digital_frame_size;
-
- if (devc->num_block_bytes == 0) {
- if (devc->model->series->protocol >= PROTOCOL_V3)
- if (sr_scpi_send(sdi->conn, ":WAV:DATA?") != SR_OK)
- return TRUE;
-
- if (sr_scpi_read_begin(scpi) != SR_OK)
- return TRUE;
-
- if (devc->format == FORMAT_IEEE488_2) {
- sr_dbg("New block header expected");
- len = rigol_ds_read_header(sdi);
- if (len == 0)
- /* Still reading the header. */
- return TRUE;
- if (len == -1) {
- sr_err("Read error, aborting capture.");
- packet.type = SR_DF_FRAME_END;
- sr_session_send(cb_data, &packet);
- sdi->driver->dev_acquisition_stop(sdi, cb_data);
- return TRUE;
- }
- /* At slow timebases in live capture the DS2072
- * sometimes returns "short" data blocks, with
- * apparently no way to get the rest of the data.
- * Discard these, the complete data block will
- * appear eventually.
- */
- if (devc->data_source == DATA_SOURCE_LIVE
- && (unsigned)len < expected_data_bytes) {
- sr_dbg("Discarding short data block");
- sr_scpi_read_data(scpi, (char *)devc->buffer, len + 1);
- return TRUE;
- }
- devc->num_block_bytes = len;
- } else {
- devc->num_block_bytes = expected_data_bytes;
- }
- devc->num_block_read = 0;
- }
-
- len = devc->num_block_bytes - devc->num_block_read;
- if (len > ACQ_BUFFER_SIZE)
- len = ACQ_BUFFER_SIZE;
- sr_dbg("Requesting read of %d bytes", len);
-
- len = sr_scpi_read_data(scpi, (char *)devc->buffer, len);
-
- if (len == -1) {
- sr_err("Read error, aborting capture.");
- packet.type = SR_DF_FRAME_END;
- sr_session_send(cb_data, &packet);
- sdi->driver->dev_acquisition_stop(sdi, cb_data);
- return TRUE;
- }
-
- sr_dbg("Received %d bytes.", len);
-
- devc->num_block_read += len;
-
- if (ch->type == SR_CHANNEL_ANALOG) {
- vref = devc->vert_reference[ch->index];
- vdiv = devc->vdiv[ch->index] / 25.6;
- offset = devc->vert_offset[ch->index];
- if (devc->model->series->protocol >= PROTOCOL_V3)
- for (i = 0; i < len; i++)
- devc->data[i] = ((int)devc->buffer[i] - vref) * vdiv - offset;
- else
- for (i = 0; i < len; i++)
- devc->data[i] = (128 - devc->buffer[i]) * vdiv - offset;
- analog.channels = g_slist_append(NULL, ch);
- analog.num_samples = len;
- analog.data = devc->data;
- analog.mq = SR_MQ_VOLTAGE;
- analog.unit = SR_UNIT_VOLT;
- analog.mqflags = 0;
- packet.type = SR_DF_ANALOG;
- packet.payload = &analog;
- sr_session_send(cb_data, &packet);
- g_slist_free(analog.channels);
- } else {
- logic.length = len;
- logic.unitsize = 2;
- logic.data = devc->buffer;
- packet.type = SR_DF_LOGIC;
- packet.payload = &logic;
- sr_session_send(cb_data, &packet);
- }
-
- if (devc->num_block_read == devc->num_block_bytes) {
- sr_dbg("Block has been completed");
- if (devc->model->series->protocol >= PROTOCOL_V3) {
- /* Discard the terminating linefeed */
- sr_scpi_read_data(scpi, (char *)devc->buffer, 1);
- }
- if (devc->format == FORMAT_IEEE488_2) {
- /* Prepare for possible next block */
- devc->num_header_bytes = 0;
- devc->num_block_bytes = 0;
- if (devc->data_source != DATA_SOURCE_LIVE)
- rigol_ds_set_wait_event(devc, WAIT_BLOCK);
- }
- if (!sr_scpi_read_complete(scpi)) {
- sr_err("Read should have been completed");
- packet.type = SR_DF_FRAME_END;
- sr_session_send(cb_data, &packet);
- sdi->driver->dev_acquisition_stop(sdi, cb_data);
- return TRUE;
- }
- devc->num_block_read = 0;
- } else {
- sr_dbg("%d of %d block bytes read", devc->num_block_read, devc->num_block_bytes);
- }
-
- devc->num_channel_bytes += len;
-
- if (devc->num_channel_bytes < expected_data_bytes)
- /* Don't have the full data for this channel yet, re-run. */
- return TRUE;
-
- /* End of data for this channel. */
- if (devc->model->series->protocol >= PROTOCOL_V3) {
- /* Signal end of data download to scope */
- if (devc->data_source != DATA_SOURCE_LIVE)
- /*
- * This causes a query error, without it switching
- * to the next channel causes an error. Fun with
- * firmware...
- */
- rigol_ds_config_set(sdi, ":WAV:END");
- }
-
- if (ch->type == SR_CHANNEL_ANALOG
- && devc->channel_entry->next != NULL) {
- /* We got the frame for this analog channel, but
- * there's another analog channel. */
- devc->channel_entry = devc->channel_entry->next;
- rigol_ds_channel_start(sdi);
- } else {
- /* Done with all analog channels in this frame. */
- if (devc->enabled_digital_channels
- && devc->channel_entry != devc->enabled_digital_channels) {
- /* Now we need to get the digital data. */
- devc->channel_entry = devc->enabled_digital_channels;
- rigol_ds_channel_start(sdi);
- } else {
- /* Done with this frame. */
- packet.type = SR_DF_FRAME_END;
- sr_session_send(cb_data, &packet);
-
- if (++devc->num_frames == devc->limit_frames) {
- /* Last frame, stop capture. */
- sdi->driver->dev_acquisition_stop(sdi, cb_data);
- } else {
- /* Get the next frame, starting with the first analog channel. */
- if (devc->enabled_analog_channels)
- devc->channel_entry = devc->enabled_analog_channels;
- else
- devc->channel_entry = devc->enabled_digital_channels;
-
- rigol_ds_capture_start(sdi);
-
- /* Start of next frame. */
- packet.type = SR_DF_FRAME_BEGIN;
- sr_session_send(cb_data, &packet);
- }
- }
- }
- }
-
- return TRUE;
-}
-
-SR_PRIV int rigol_ds_get_dev_cfg(const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- char *t_s, *cmd;
- unsigned int i;
- int res;
-
- devc = sdi->priv;
-
- /* Analog channel state. */
- for (i = 0; i < devc->model->analog_channels; i++) {
- cmd = g_strdup_printf(":CHAN%d:DISP?", i + 1);
- res = sr_scpi_get_string(sdi->conn, cmd, &t_s);
- g_free(cmd);
- if (res != SR_OK)
- return SR_ERR;
- devc->analog_channels[i] = !strcmp(t_s, "ON") || !strcmp(t_s, "1");
- }
- sr_dbg("Current analog channel state:");
- for (i = 0; i < devc->model->analog_channels; i++)
- sr_dbg("CH%d %s", i + 1, devc->analog_channels[i] ? "on" : "off");
-
- /* Digital channel state. */
- if (devc->model->has_digital) {
- if (sr_scpi_get_string(sdi->conn, ":LA:DISP?", &t_s) != SR_OK)
- return SR_ERR;
- devc->la_enabled = !strcmp(t_s, "ON") ? TRUE : FALSE;
- sr_dbg("Logic analyzer %s, current digital channel state:",
- devc->la_enabled ? "enabled" : "disabled");
- for (i = 0; i < 16; i++) {
- cmd = g_strdup_printf(":DIG%d:TURN?", i);
- res = sr_scpi_get_string(sdi->conn, cmd, &t_s);
- g_free(cmd);
- if (res != SR_OK)
- return SR_ERR;
- devc->digital_channels[i] = !strcmp(t_s, "ON") ? TRUE : FALSE;
- g_free(t_s);
- sr_dbg("D%d: %s", i, devc->digital_channels[i] ? "on" : "off");
- }
- }
-
- /* Timebase. */
- if (sr_scpi_get_float(sdi->conn, ":TIM:SCAL?", &devc->timebase) != SR_OK)
- return SR_ERR;
- sr_dbg("Current timebase %g", devc->timebase);
-
- /* Vertical gain. */
- for (i = 0; i < devc->model->analog_channels; i++) {
- cmd = g_strdup_printf(":CHAN%d:SCAL?", i + 1);
- res = sr_scpi_get_float(sdi->conn, cmd, &devc->vdiv[i]);
- g_free(cmd);
- if (res != SR_OK)
- return SR_ERR;
- }
- sr_dbg("Current vertical gain:");
- for (i = 0; i < devc->model->analog_channels; i++)
- sr_dbg("CH%d %g", i + 1, devc->vdiv[i]);
-
- sr_dbg("Current vertical reference:");
- if (devc->model->series->protocol >= PROTOCOL_V3) {
- /* Vertical reference - not certain if this is the place to read it. */
- for (i = 0; i < devc->model->analog_channels; i++) {
- if (rigol_ds_config_set(sdi, ":WAV:SOUR CHAN%d", i + 1) != SR_OK)
- return SR_ERR;
- if (sr_scpi_get_int(sdi->conn, ":WAV:YREF?", &devc->vert_reference[i]) != SR_OK)
- return SR_ERR;
- sr_dbg("CH%d %d", i + 1, devc->vert_reference[i]);
- }
- }
-
- /* Vertical offset. */
- for (i = 0; i < devc->model->analog_channels; i++) {
- cmd = g_strdup_printf(":CHAN%d:OFFS?", i + 1);
- res = sr_scpi_get_float(sdi->conn, cmd, &devc->vert_offset[i]);
- g_free(cmd);
- if (res != SR_OK)
- return SR_ERR;
- }
- sr_dbg("Current vertical offset:");
- for (i = 0; i < devc->model->analog_channels; i++)
- sr_dbg("CH%d %g", i + 1, devc->vert_offset[i]);
-
- /* Coupling. */
- for (i = 0; i < devc->model->analog_channels; i++) {
- cmd = g_strdup_printf(":CHAN%d:COUP?", i + 1);
- res = sr_scpi_get_string(sdi->conn, cmd, &devc->coupling[i]);
- g_free(cmd);
- if (res != SR_OK)
- return SR_ERR;
- }
- sr_dbg("Current coupling:");
- for (i = 0; i < devc->model->analog_channels; i++)
- sr_dbg("CH%d %s", i + 1, devc->coupling[i]);
-
- /* Trigger source. */
- if (sr_scpi_get_string(sdi->conn, ":TRIG:EDGE:SOUR?", &devc->trigger_source) != SR_OK)
- return SR_ERR;
- sr_dbg("Current trigger source %s", devc->trigger_source);
-
- /* Horizontal trigger position. */
- if (sr_scpi_get_float(sdi->conn, ":TIM:OFFS?", &devc->horiz_triggerpos) != SR_OK)
- return SR_ERR;
- sr_dbg("Current horizontal trigger position %g", devc->horiz_triggerpos);
-
- /* Trigger slope. */
- if (sr_scpi_get_string(sdi->conn, ":TRIG:EDGE:SLOP?", &devc->trigger_slope) != SR_OK)
- return SR_ERR;
- sr_dbg("Current trigger slope %s", devc->trigger_slope);
-
- return SR_OK;
-}
projects / libsigrok.git / blobdiff