X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fsiglent-sds%2Fprotocol.c;h=919df9b27c30830ff16ff3f41c73b918abebc1a5;hb=HEAD;hp=1f67fd774d20a13e1e49e8d8b0b5867eca4b7537;hpb=89f5fab97cc6c77da74a9262822eb00cabd287e1;p=libsigrok.git diff --git a/src/hardware/siglent-sds/protocol.c b/src/hardware/siglent-sds/protocol.c index 1f67fd77..d59e52cb 100644 --- a/src/hardware/siglent-sds/protocol.c +++ b/src/hardware/siglent-sds/protocol.c @@ -1,7 +1,10 @@ /* * This file is part of the libsigrok project. * - * Copyright (C) 2018 mhooijboer + * Copyright (C) 2016 mhooijboer + * Copyright (C) 2012 Martin Ling + * Copyright (C) 2013 Bert Vermeulen + * Copyright (C) 2013 Mathias Grimmberger * * 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 @@ -17,13 +20,458 @@ * along with this program. If not, see . */ +#define _GNU_SOURCE + #include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "libsigrok-internal.h" +#include "scpi.h" #include "protocol.h" -SR_PRIV int siglent_sds_receive_data(int fd, int revents, void *cb_data) +/* Set the next event to wait for in siglent_sds_receive(). */ +static void siglent_sds_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 siglent_sds_event_wait(const struct sr_dev_inst *sdi) +{ + char *buf; + long s; + int out; + struct dev_context *devc; + time_t start; + + if (!(devc = sdi->priv)) + return SR_ERR; + + start = time(NULL); + + s = 10000; /* Sleep time for status refresh. */ + 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, ":INR?", &buf) != SR_OK) + return SR_ERR; + sr_atoi(buf, &out); + g_free(buf); + g_usleep(s); + } while (out == 0); + + sr_dbg("Device triggered."); + + if ((devc->timebase < 0.51) && (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 * 1000); + sr_spew("Sleeping for %ld usecs after trigger, " + "to let the acq buffer in the device fill", s); + g_usleep(s); + } + } + 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, ":INR?", &buf) != SR_OK) + return SR_ERR; + sr_atoi(buf, &out); + g_free(buf); + g_usleep(s); + /* XXX + * Now this loop condition looks suspicious! A bitwise + * OR of a variable and a non-zero literal should be + * non-zero. Logical AND of several non-zero values + * should be non-zero. Are many parts of the condition + * not taking effect? Was some different condition meant + * to get encoded? This needs review, and adjustment. + */ + } while (out != DEVICE_STATE_TRIG_RDY || out != DEVICE_STATE_DATA_TRIG_RDY || out != DEVICE_STATE_STOPPED); + + sr_dbg("Device triggered."); + + siglent_sds_set_wait_event(devc, WAIT_NONE); + } + + return SR_OK; +} + +static int siglent_sds_trigger_wait(const struct sr_dev_inst *sdi) +{ + struct dev_context *devc; + + if (!(devc = sdi->priv)) + return SR_ERR; + return siglent_sds_event_wait(sdi); +} + +/* Wait for scope to got to "Stop" in single shot mode. */ +static int siglent_sds_stop_wait(const struct sr_dev_inst *sdi) +{ + return siglent_sds_event_wait(sdi); +} + +/* Send a configuration setting. */ +SR_PRIV int siglent_sds_config_set(const struct sr_dev_inst *sdi, const char *format, ...) +{ + va_list args; + int ret; + + va_start(args, format); + ret = sr_scpi_send_variadic(sdi->conn, format, args); + va_end(args); + + return ret; +} + +/* Start capturing a new frameset. */ +SR_PRIV int siglent_sds_capture_start(const struct sr_dev_inst *sdi) +{ + struct dev_context *devc; + + if (!(devc = sdi->priv)) + return SR_ERR; + + switch (devc->model->series->protocol) { + case SPO_MODEL: + if (devc->data_source == DATA_SOURCE_SCREEN) { + char *buf; + int out; + + sr_dbg("Starting data capture for active frameset %" PRIu64 " of %" PRIu64, + devc->num_frames + 1, devc->limit_frames); + if (siglent_sds_config_set(sdi, "ARM") != SR_OK) + return SR_ERR; + if (sr_scpi_get_string(sdi->conn, ":INR?", &buf) != SR_OK) + return SR_ERR; + sr_atoi(buf, &out); + g_free(buf); + if (out == DEVICE_STATE_TRIG_RDY) { + siglent_sds_set_wait_event(devc, WAIT_TRIGGER); + } else if (out == DEVICE_STATE_DATA_TRIG_RDY) { + sr_spew("Device triggered."); + siglent_sds_set_wait_event(devc, WAIT_BLOCK); + return SR_OK; + } else { + sr_spew("Device did not enter ARM mode."); + return SR_ERR; + } + } else { /* TODO: Implement history retrieval. */ + unsigned int framecount; + char buf[200]; + int ret; + + sr_dbg("Starting data capture for history frameset."); + if (siglent_sds_config_set(sdi, "FPAR?") != SR_OK) + return SR_ERR; + ret = sr_scpi_read_data(sdi->conn, buf, 200); + if (ret < 0) { + sr_err("Read error while reading data header."); + return SR_ERR; + } + memcpy(&framecount, buf + 40, 4); + if (devc->limit_frames > framecount) + sr_err("Frame limit higher than frames in buffer of device!"); + else if (devc->limit_frames == 0) + devc->limit_frames = framecount; + sr_dbg("Starting data capture for history frameset %" PRIu64 " of %" PRIu64, + devc->num_frames + 1, devc->limit_frames); + if (siglent_sds_config_set(sdi, "FRAM %i", devc->num_frames + 1) != SR_OK) + return SR_ERR; + if (siglent_sds_channel_start(sdi) != SR_OK) + return SR_ERR; + siglent_sds_set_wait_event(devc, WAIT_STOP); + } + break; + case ESERIES: + if (devc->data_source == DATA_SOURCE_SCREEN) { + char *buf; + int out; + + sr_dbg("Starting data capture for active frameset %" PRIu64 " of %" PRIu64, + devc->num_frames + 1, devc->limit_frames); + if (siglent_sds_config_set(sdi, "ARM") != SR_OK) + return SR_ERR; + if (sr_scpi_get_string(sdi->conn, ":INR?", &buf) != SR_OK) + return SR_ERR; + sr_atoi(buf, &out); + g_free(buf); + if (out == DEVICE_STATE_TRIG_RDY) { + siglent_sds_set_wait_event(devc, WAIT_TRIGGER); + } else if (out == DEVICE_STATE_DATA_TRIG_RDY) { + sr_spew("Device triggered."); + siglent_sds_set_wait_event(devc, WAIT_BLOCK); + return SR_OK; + } else { + sr_spew("Device did not enter ARM mode."); + return SR_ERR; + } + } else { /* TODO: Implement history retrieval. */ + unsigned int framecount; + char buf[200]; + int ret; + + sr_dbg("Starting data capture for history frameset."); + if (siglent_sds_config_set(sdi, "FPAR?") != SR_OK) + return SR_ERR; + ret = sr_scpi_read_data(sdi->conn, buf, 200); + if (ret < 0) { + sr_err("Read error while reading data header."); + return SR_ERR; + } + memcpy(&framecount, buf + 40, 4); + if (devc->limit_frames > framecount) + sr_err("Frame limit higher than frames in buffer of device!"); + else if (devc->limit_frames == 0) + devc->limit_frames = framecount; + sr_dbg("Starting data capture for history frameset %" PRIu64 " of %" PRIu64, + devc->num_frames + 1, devc->limit_frames); + if (siglent_sds_config_set(sdi, "FRAM %i", devc->num_frames + 1) != SR_OK) + return SR_ERR; + if (siglent_sds_channel_start(sdi) != SR_OK) + return SR_ERR; + siglent_sds_set_wait_event(devc, WAIT_STOP); + } + break; + case NON_SPO_MODEL: + siglent_sds_set_wait_event(devc, WAIT_TRIGGER); + break; + } + + return SR_OK; +} + +/* Start reading data from the current channel. */ +SR_PRIV int siglent_sds_channel_start(const struct sr_dev_inst *sdi) +{ + struct dev_context *devc; + struct sr_channel *ch; + const char *s; + + if (!(devc = sdi->priv)) + return SR_ERR; + + ch = devc->channel_entry->data; + + sr_dbg("Start reading data from channel %s.", ch->name); + + switch (devc->model->series->protocol) { + case NON_SPO_MODEL: + case SPO_MODEL: + s = (ch->type == SR_CHANNEL_LOGIC) ? "D%d:WF?" : "C%d:WF? ALL"; + if (sr_scpi_send(sdi->conn, s, ch->index + 1) != SR_OK) + return SR_ERR; + siglent_sds_set_wait_event(devc, WAIT_NONE); + break; + case ESERIES: + if (ch->type == SR_CHANNEL_ANALOG) { + if (sr_scpi_send(sdi->conn, "C%d:WF? ALL", + ch->index + 1) != SR_OK) + return SR_ERR; + } + siglent_sds_set_wait_event(devc, WAIT_NONE); + if (sr_scpi_read_begin(sdi->conn) != SR_OK) + return TRUE; + siglent_sds_set_wait_event(devc, WAIT_BLOCK); + break; + } + + 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 siglent_sds_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; + int ret, desc_length; + int block_offset = 15; /* Offset for descriptor block. */ + long data_length = 0; + + /* Read header from device. */ + ret = sr_scpi_read_data(scpi, buf, SIGLENT_HEADER_SIZE); + if (ret < SIGLENT_HEADER_SIZE) { + sr_err("Read error while reading data header."); + return SR_ERR; + } + sr_dbg("Device returned %i bytes.", ret); + devc->num_header_bytes += ret; + buf += block_offset; /* Skip to start descriptor block. */ + + /* Parse WaveDescriptor header. */ + memcpy(&desc_length, buf + 36, 4); /* Descriptor block length */ + memcpy(&data_length, buf + 60, 4); /* Data block length */ + + devc->block_header_size = desc_length + 15; + devc->num_samples = data_length; + + sr_dbg("Received data block header: '%s' -> block length %d.", buf, ret); + + return ret; +} + +static int siglent_sds_get_digital(const struct sr_dev_inst *sdi, struct sr_channel *ch) +{ + struct sr_scpi_dev_inst *scpi = sdi->conn; + struct dev_context *devc = sdi->priv; + GArray *tmp_samplebuf; /* Temp buffer while iterating over the scope samples */ + char *buf = (char *)devc->buffer; /* Buffer from scope */ + uint8_t tmp_value; /* Holding temp value from data */ + GArray *data_low_channels, *data_high_channels, *buffdata; + GSList *l; + gboolean low_channels; /* Lower channels enabled */ + gboolean high_channels; /* Higher channels enabled */ + int len, channel_index; + uint64_t samples_index; + + len = 0; + channel_index = 0; + low_channels = FALSE; + high_channels = FALSE; + data_low_channels = g_array_new(FALSE, TRUE, sizeof(uint8_t)); + data_high_channels = g_array_new(FALSE, TRUE, sizeof(uint8_t)); + + for (l = sdi->channels; l; l = l->next) { + ch = l->data; + samples_index = 0; + if (ch->type != SR_CHANNEL_LOGIC) + continue; + if (!ch->enabled) + continue; + if (sr_scpi_send(sdi->conn, "D%d:WF? DAT2", ch->index) != SR_OK) + return SR_ERR; + if (sr_scpi_read_begin(scpi) != SR_OK) + return TRUE; + len = sr_scpi_read_data(scpi, buf, -1); + if (len < 0) + return TRUE; + len -= 15; + buffdata = g_array_sized_new(FALSE, FALSE, sizeof(uint8_t), len); + buf += 15; /* Skipping the data header. */ + g_array_append_vals(buffdata, buf, len); + tmp_samplebuf = g_array_sized_new(FALSE, FALSE, sizeof(uint8_t), len); /* New temp buffer. */ + for (uint64_t cur_sample_index = 0; cur_sample_index < devc->memory_depth_digital; cur_sample_index++) { + char sample = (char)g_array_index(buffdata, uint8_t, cur_sample_index); + for (int ii = 0; ii < 8; ii++, sample >>= 1) { + if (ch->index < 8) { + channel_index = ch->index; + if (data_low_channels->len <= samples_index) { + tmp_value = 0; /* New sample. */ + low_channels = TRUE; /* We have at least one enabled low channel. */ + } else { + /* Get previous stored sample from low channel buffer. */ + tmp_value = g_array_index(data_low_channels, uint8_t, samples_index); + } + } else { + channel_index = ch->index - 8; + if (data_high_channels->len <= samples_index) { + tmp_value = 0; /* New sample. */ + high_channels = TRUE; /* We have at least one enabled high channel. */ + } else { + /* Get previous stored sample from high channel buffer. */ + tmp_value = g_array_index(data_high_channels, uint8_t, samples_index); + } + } + /* Check if the current scope sample bit is set. */ + if (sample & 0x1) + tmp_value |= 1UL << channel_index; /* Set current scope sample bit based on channel index. */ + g_array_append_val(tmp_samplebuf, tmp_value); + samples_index++; + } + } + + /* Clear the buffers to prepare for the new samples */ + if (ch->index < 8) { + g_array_free(data_low_channels, TRUE); + data_low_channels = g_array_new(FALSE, FALSE, sizeof(uint8_t)); + } else { + g_array_free(data_high_channels, TRUE); + data_high_channels = g_array_new(FALSE, FALSE, sizeof(uint8_t)); + } + + /* Storing the converted temp values from the the scope into the buffers. */ + for (uint64_t index = 0; index < tmp_samplebuf->len; index++) { + uint8_t value = g_array_index(tmp_samplebuf, uint8_t, index); + if (ch->index < 8) + g_array_append_val(data_low_channels, value); + else + g_array_append_val(data_high_channels, value); + } + g_array_free(tmp_samplebuf, TRUE); + g_array_free(buffdata, TRUE); + } + + /* Combining the lower and higher channel buffers into one buffer for sigrok. */ + devc->dig_buffer = g_array_new(FALSE, FALSE, sizeof(uint8_t)); + for (uint64_t index = 0; index < devc->memory_depth_digital; index++) { + uint8_t value; + if (low_channels) { + value = g_array_index(data_low_channels, uint8_t, index); + g_array_append_val(devc->dig_buffer, value); + } else { + value = 0; + g_array_append_val(devc->dig_buffer, value); + } + if (high_channels) { + value = g_array_index(data_high_channels, uint8_t, index); + g_array_append_val(devc->dig_buffer, value); + } else { + value = 0; + g_array_append_val(devc->dig_buffer, value); + } + } + + g_array_free(data_low_channels, TRUE); + g_array_free(data_high_channels, TRUE); + + return len; +} + +SR_PRIV int siglent_sds_receive(int fd, int revents, void *cb_data) { - const struct sr_dev_inst *sdi; + 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_analog_encoding encoding; + struct sr_analog_meaning meaning; + struct sr_analog_spec spec; + struct sr_datafeed_logic logic; + struct sr_channel *ch; + int len, i; + float wait; + gboolean read_complete = FALSE; (void)fd; @@ -33,9 +481,468 @@ SR_PRIV int siglent_sds_receive_data(int fd, int revents, void *cb_data) if (!(devc = sdi->priv)) return TRUE; - if (revents == G_IO_IN) { - /* TODO */ + scpi = sdi->conn; + + if (!(revents == G_IO_IN || revents == 0)) + return TRUE; + + switch (devc->wait_event) { + case WAIT_NONE: + break; + case WAIT_TRIGGER: + if (siglent_sds_trigger_wait(sdi) != SR_OK) + return TRUE; + if (siglent_sds_channel_start(sdi) != SR_OK) + return TRUE; + return TRUE; + case WAIT_BLOCK: + if (siglent_sds_channel_start(sdi) != SR_OK) + return TRUE; + break; + case WAIT_STOP: + if (siglent_sds_stop_wait(sdi) != SR_OK) + return TRUE; + if (siglent_sds_channel_start(sdi) != SR_OK) + return TRUE; + return TRUE; + default: + sr_err("BUG: Unknown event target encountered."); + break; + } + + ch = devc->channel_entry->data; + len = 0; + + if (ch->type == SR_CHANNEL_ANALOG) { + if (devc->num_block_bytes == 0) { + /* Wait for the device to fill its output buffers. */ + switch (devc->model->series->protocol) { + case NON_SPO_MODEL: + case SPO_MODEL: + /* The older models need more time to prepare the the output buffers due to CPU speed. */ + wait = (devc->memory_depth_analog * 2.5); + sr_dbg("Waiting %.f0 ms for device to prepare the output buffers", wait / 1000); + g_usleep(wait); + if (sr_scpi_read_begin(scpi) != SR_OK) + return TRUE; + break; + case ESERIES: + /* The newer models (ending with the E) have faster CPUs but still need time when a slow timebase is selected. */ + if (sr_scpi_read_begin(scpi) != SR_OK) + return TRUE; + wait = ((devc->timebase * devc->model->series->num_horizontal_divs) * 100000); + sr_dbg("Waiting %.f0 ms for device to prepare the output buffers", wait / 1000); + g_usleep(wait); + break; + } + + sr_dbg("New block with header expected."); + len = siglent_sds_read_header(sdi); + if (len == 0) + /* Still reading the header. */ + return TRUE; + if (len == -1) { + sr_err("Read error, aborting capture."); + std_session_send_df_frame_end(sdi); + sdi->driver->dev_acquisition_stop(sdi); + return TRUE; + } + devc->num_block_bytes = len; + devc->num_block_read = 0; + + if (len == -1) { + sr_err("Read error, aborting capture."); + std_session_send_df_frame_end(sdi); + sdi->driver->dev_acquisition_stop(sdi); + return TRUE; + } + + do { + read_complete = FALSE; + if (devc->num_block_bytes > devc->num_samples) { + /* We received all data as one block. */ + /* Offset the data block buffer past the IEEE header and description header. */ + devc->buffer += devc->block_header_size; + len = devc->num_samples; + } else { + sr_dbg("Requesting: %" PRIu64 " bytes.", devc->num_samples - devc->num_block_bytes); + len = sr_scpi_read_data(scpi, (char *)devc->buffer, devc->num_samples-devc->num_block_bytes); + if (len == -1) { + sr_err("Read error, aborting capture."); + std_session_send_df_frame_end(sdi); + sdi->driver->dev_acquisition_stop(sdi); + return TRUE; + } + devc->num_block_read++; + devc->num_block_bytes += len; + } + sr_dbg("Received block: %i, %d bytes.", devc->num_block_read, len); + if (ch->type == SR_CHANNEL_ANALOG) { + float vdiv = devc->vdiv[ch->index]; + float offset = devc->vert_offset[ch->index]; + GArray *float_data; + static GArray *data; + float voltage, vdivlog; + int digits; + + data = g_array_sized_new(FALSE, FALSE, sizeof(uint8_t), len); + g_array_append_vals(data, devc->buffer, len); + float_data = g_array_new(FALSE, FALSE, sizeof(float)); + for (i = 0; i < len; i++) { + voltage = (float)g_array_index(data, int8_t, i) / 25; + voltage = ((vdiv * voltage) - offset); + g_array_append_val(float_data, voltage); + } + vdivlog = log10f(vdiv); + digits = -(int) vdivlog + (vdivlog < 0.0); + sr_analog_init(&analog, &encoding, &meaning, &spec, digits); + analog.meaning->channels = g_slist_append(NULL, ch); + analog.num_samples = float_data->len; + analog.data = (float *)float_data->data; + analog.meaning->mq = SR_MQ_VOLTAGE; + analog.meaning->unit = SR_UNIT_VOLT; + analog.meaning->mqflags = 0; + packet.type = SR_DF_ANALOG; + packet.payload = &analog; + sr_session_send(sdi, &packet); + g_slist_free(analog.meaning->channels); + g_array_free(data, TRUE); + } + len = 0; + if (devc->num_samples == (devc->num_block_bytes - SIGLENT_HEADER_SIZE)) { + sr_dbg("Transfer has been completed."); + devc->num_header_bytes = 0; + devc->num_block_bytes = 0; + read_complete = TRUE; + if (!sr_scpi_read_complete(scpi)) { + sr_err("Read should have been completed."); + std_session_send_df_frame_end(sdi); + sdi->driver->dev_acquisition_stop(sdi); + return TRUE; + } + devc->num_block_read = 0; + } else { + sr_dbg("%" PRIu64 " of %" PRIu64 " block bytes read.", + devc->num_block_bytes, devc->num_samples); + } + } while (!read_complete); + + if (devc->channel_entry->next) { + /* We got the frame for this channel, now get the next channel. */ + devc->channel_entry = devc->channel_entry->next; + siglent_sds_channel_start(sdi); + } else { + /* Done with this frame. */ + std_session_send_df_frame_end(sdi); + if (++devc->num_frames == devc->limit_frames) { + /* Last frame, stop capture. */ + sdi->driver->dev_acquisition_stop(sdi); + } else { + /* Get the next frame, starting with the first channel. */ + devc->channel_entry = devc->enabled_channels; + siglent_sds_capture_start(sdi); + + /* Start of next frame. */ + std_session_send_df_frame_begin(sdi); + } + } + } + } else { + if (!siglent_sds_get_digital(sdi, ch)) + return TRUE; + logic.length = devc->dig_buffer->len; + logic.unitsize = 2; + logic.data = devc->dig_buffer->data; + packet.type = SR_DF_LOGIC; + packet.payload = &logic; + sr_session_send(sdi, &packet); + std_session_send_df_frame_end(sdi); + sdi->driver->dev_acquisition_stop(sdi); + + if (++devc->num_frames == devc->limit_frames) { + /* Last frame, stop capture. */ + sdi->driver->dev_acquisition_stop(sdi); + } else { + /* Get the next frame, starting with the first channel. */ + devc->channel_entry = devc->enabled_channels; + siglent_sds_capture_start(sdi); + + /* Start of next frame. */ + std_session_send_df_frame_begin(sdi); + } } + // sr_session_send(sdi, &packet); + // std_session_send_df_frame_end(sdi); + // sdi->driver->dev_acquisition_stop(sdi); + return TRUE; } + +SR_PRIV int siglent_sds_get_dev_cfg(const struct sr_dev_inst *sdi) +{ + struct dev_context *devc; + struct sr_channel *ch; + char *cmd, *response; + unsigned int i; + int res, num_tokens; + gchar **tokens; + int len; + float trigger_pos; + + devc = sdi->priv; + + /* Analog channel state. */ + for (i = 0; i < devc->model->analog_channels; i++) { + cmd = g_strdup_printf("C%i:TRA?", i + 1); + res = sr_scpi_get_bool(sdi->conn, cmd, &devc->analog_channels[i]); + g_free(cmd); + if (res != SR_OK) + return SR_ERR; + ch = g_slist_nth_data(sdi->channels, i); + ch->enabled = devc->analog_channels[i]; + } + 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) { + gboolean status; + + sr_dbg("Check logic analyzer channel state."); + devc->la_enabled = FALSE; + cmd = g_strdup_printf("DI:SW?"); + res = sr_scpi_get_bool(sdi->conn, cmd, &status); + g_free(cmd); + if (res != SR_OK) + return SR_ERR; + sr_dbg("Logic analyzer status: %s", status ? "On" : "Off"); + if (status) { + devc->la_enabled = TRUE; + for (i = 0; i < ARRAY_SIZE(devc->digital_channels); i++) { + cmd = g_strdup_printf("D%i:TRA?", i); + res = sr_scpi_get_bool(sdi->conn, cmd, &devc->digital_channels[i]); + g_free(cmd); + if (res != SR_OK) + return SR_ERR; + ch = g_slist_nth_data(sdi->channels, i + devc->model->analog_channels); + ch->enabled = devc->digital_channels[i]; + sr_dbg("D%d: %s", i, devc->digital_channels[i] ? "On" : "Off"); + } + } else { + for (i = 0; i < ARRAY_SIZE(devc->digital_channels); i++) { + ch = g_slist_nth_data(sdi->channels, i + devc->model->analog_channels); + devc->digital_channels[i] = FALSE; + ch->enabled = devc->digital_channels[i]; + sr_dbg("D%d: %s", i, devc->digital_channels[i] ? "On" : "Off"); + } + } + } + + /* Timebase. */ + if (sr_scpi_get_float(sdi->conn, ":TDIV?", &devc->timebase) != SR_OK) + return SR_ERR; + sr_dbg("Current timebase: %g.", devc->timebase); + + /* Probe attenuation. */ + for (i = 0; i < devc->model->analog_channels; i++) { + cmd = g_strdup_printf("C%d:ATTN?", i + 1); + res = sr_scpi_get_float(sdi->conn, cmd, &devc->attenuation[i]); + g_free(cmd); + if (res != SR_OK) + return SR_ERR; + } + sr_dbg("Current probe attenuation:"); + for (i = 0; i < devc->model->analog_channels; i++) + sr_dbg("CH%d %g", i + 1, devc->attenuation[i]); + + /* Vertical gain and offset. */ + if (siglent_sds_get_dev_cfg_vertical(sdi) != SR_OK) + return SR_ERR; + + /* Coupling. */ + for (i = 0; i < devc->model->analog_channels; i++) { + cmd = g_strdup_printf("C%d:CPL?", i + 1); + g_free(devc->coupling[i]); + devc->coupling[i] = NULL; + 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. */ + response = NULL; + tokens = NULL; + if (sr_scpi_get_string(sdi->conn, "TRSE?", &response) != SR_OK) + return SR_ERR; + tokens = g_strsplit(response, ",", 0); + num_tokens = g_strv_length(tokens); + if (num_tokens < 4) { + sr_dbg("IDN response not according to spec: %80.s.", response); + g_strfreev(tokens); + g_free(response); + return SR_ERR_DATA; + } + g_free(response); + devc->trigger_source = g_strstrip(g_strdup(tokens[2])); + sr_dbg("Current trigger source: %s.", devc->trigger_source); + + /* TODO: Horizontal trigger position. */ + response = ""; + trigger_pos = 0; + // if (sr_scpi_get_string(sdi->conn, g_strdup_printf("%s:TRDL?", devc->trigger_source), &response) != SR_OK) + // return SR_ERR; + // len = strlen(response); + len = strlen(tokens[4]); + if (!g_ascii_strcasecmp(tokens[4] + (len - 2), "us")) { + trigger_pos = atof(tokens[4]) / SR_GHZ(1); + sr_dbg("Current trigger position us %s.", tokens[4] ); + } else if (!g_ascii_strcasecmp(tokens[4] + (len - 2), "ns")) { + trigger_pos = atof(tokens[4]) / SR_MHZ(1); + sr_dbg("Current trigger position ms %s.", tokens[4] ); + } else if (!g_ascii_strcasecmp(tokens[4] + (len - 2), "ms")) { + trigger_pos = atof(tokens[4]) / SR_KHZ(1); + sr_dbg("Current trigger position ns %s.", tokens[4] ); + } else if (!g_ascii_strcasecmp(tokens[4] + (len - 2), "s")) { + trigger_pos = atof(tokens[4]); + sr_dbg("Current trigger position s %s.", tokens[4] ); + }; + devc->horiz_triggerpos = trigger_pos; + + sr_dbg("Current horizontal trigger position %.10f.", devc->horiz_triggerpos); + + /* Trigger slope. */ + cmd = g_strdup_printf("%s:TRSL?", devc->trigger_source); + g_free(devc->trigger_slope); + devc->trigger_slope = NULL; + res = sr_scpi_get_string(sdi->conn, cmd, &devc->trigger_slope); + g_free(cmd); + if (res != SR_OK) + return SR_ERR; + sr_dbg("Current trigger slope: %s.", devc->trigger_slope); + + /* Trigger level, only when analog channel. */ + if (g_str_has_prefix(tokens[2], "C")) { + cmd = g_strdup_printf("%s:TRLV?", devc->trigger_source); + res = sr_scpi_get_float(sdi->conn, cmd, &devc->trigger_level); + g_free(cmd); + if (res != SR_OK) + return SR_ERR; + sr_dbg("Current trigger level: %g.", devc->trigger_level); + } + + return SR_OK; +} + +SR_PRIV int siglent_sds_get_dev_cfg_vertical(const struct sr_dev_inst *sdi) +{ + struct dev_context *devc; + char *cmd; + unsigned int i; + int res; + + devc = sdi->priv; + + /* Vertical gain. */ + for (i = 0; i < devc->model->analog_channels; i++) { + cmd = g_strdup_printf("C%d:VDIV?", 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]); + + /* Vertical offset. */ + for (i = 0; i < devc->model->analog_channels; i++) { + cmd = g_strdup_printf("C%d:OFST?", 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]); + + return SR_OK; +} + +SR_PRIV int siglent_sds_get_dev_cfg_horizontal(const struct sr_dev_inst *sdi) +{ + struct dev_context *devc; + char *cmd; + int res; + char *sample_points_string; + float samplerate_scope, fvalue; + + devc = sdi->priv; + + switch (devc->model->series->protocol) { + case SPO_MODEL: + case NON_SPO_MODEL: + cmd = g_strdup_printf("SANU? C1"); + res = sr_scpi_get_string(sdi->conn, cmd, &sample_points_string); + g_free(cmd); + samplerate_scope = 0; + fvalue = 0; + if (res != SR_OK) { + g_free(sample_points_string); + return SR_ERR; + } + if (g_strstr_len(sample_points_string, -1, "Mpts") != NULL) { + sample_points_string[strlen(sample_points_string) - 4] = '\0'; + if (sr_atof_ascii(sample_points_string, &fvalue) != SR_OK) { + sr_dbg("Invalid float converted from scope response."); + g_free(sample_points_string); + return SR_ERR; + } + samplerate_scope = fvalue * 1000000; + } else if (g_strstr_len(sample_points_string, -1, "Kpts") != NULL) { + sample_points_string[strlen(sample_points_string) - 4] = '\0'; + if (sr_atof_ascii(sample_points_string, &fvalue) != SR_OK) { + sr_dbg("Invalid float converted from scope response."); + g_free(sample_points_string); + return SR_ERR; + } + samplerate_scope = fvalue * 10000; + } else { + samplerate_scope = fvalue; + } + g_free(sample_points_string); + devc->memory_depth_analog = samplerate_scope; + break; + case ESERIES: + cmd = g_strdup_printf("SANU? C1"); + if (sr_scpi_get_float(sdi->conn, cmd, &fvalue) != SR_OK) + return SR_ERR; + devc->memory_depth_analog = (long)fvalue; + if (devc->la_enabled) { + cmd = g_strdup_printf("SANU? D0"); + if (sr_scpi_get_float(sdi->conn, cmd, &fvalue) != SR_OK) + return SR_ERR; + devc->memory_depth_digital = (long)fvalue; + } + g_free(cmd); + break; + }; + + /* Get the timebase. */ + if (sr_scpi_get_float(sdi->conn, ":TDIV?", &devc->timebase) != SR_OK) + return SR_ERR; + + sr_dbg("Current timebase: %g.", devc->timebase); + devc->samplerate = devc->memory_depth_analog / (devc->timebase * devc->model->series->num_horizontal_divs); + sr_dbg("Current samplerate: %0f.", devc->samplerate); + sr_dbg("Current memory depth: %" PRIu64 ".", devc->memory_depth_analog); + + return SR_OK; +}