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libsigrok/hardware/rigol-ds/api.c

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/*
* 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 <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <glib.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "protocol.h"
static const int32_t hwopts[] = {
SR_CONF_CONN,
SR_CONF_SERIALCOMM
};
static const int32_t hwcaps[] = {
SR_CONF_OSCILLOSCOPE,
SR_CONF_TIMEBASE,
SR_CONF_TRIGGER_SOURCE,
SR_CONF_TRIGGER_SLOPE,
SR_CONF_HORIZ_TRIGGERPOS,
SR_CONF_NUM_TIMEBASE,
SR_CONF_LIMIT_FRAMES,
SR_CONF_SAMPLERATE,
};
static const int32_t analog_hwcaps[] = {
SR_CONF_NUM_VDIV,
SR_CONF_VDIV,
SR_CONF_COUPLING,
SR_CONF_DATA_SOURCE,
};
static const uint64_t timebases[][2] = {
/* nanoseconds */
{ 1, 1000000000 },
{ 2, 1000000000 },
{ 5, 1000000000 },
{ 10, 1000000000 },
{ 20, 1000000000 },
{ 50, 1000000000 },
{ 100, 1000000000 },
{ 500, 1000000000 },
/* microseconds */
{ 1, 1000000 },
{ 2, 1000000 },
{ 5, 1000000 },
{ 10, 1000000 },
{ 20, 1000000 },
{ 50, 1000000 },
{ 100, 1000000 },
{ 200, 1000000 },
{ 500, 1000000 },
/* milliseconds */
{ 1, 1000 },
{ 2, 1000 },
{ 5, 1000 },
{ 10, 1000 },
{ 20, 1000 },
{ 50, 1000 },
{ 100, 1000 },
{ 200, 1000 },
{ 500, 1000 },
/* seconds */
{ 1, 1 },
{ 2, 1 },
{ 5, 1 },
{ 10, 1 },
{ 20, 1 },
{ 50, 1 },
{ 100, 1 },
{ 200, 1 },
{ 500, 1 },
{ 1000, 1 },
};
static const uint64_t vdivs[][2] = {
/* microvolts */
{ 500, 1000000 },
/* millivolts */
{ 1, 1000 },
{ 2, 1000 },
{ 5, 1000 },
{ 10, 1000 },
{ 20, 1000 },
{ 50, 1000 },
{ 100, 1000 },
{ 200, 1000 },
{ 500, 1000 },
/* volts */
{ 1, 1 },
{ 2, 1 },
{ 5, 1 },
{ 10, 1 },
};
#define NUM_TIMEBASE ARRAY_SIZE(timebases)
#define NUM_VDIV ARRAY_SIZE(vdivs)
static const char *trigger_sources[] = {
"CH1",
"CH2",
"CH3",
"CH4",
"EXT",
"AC Line",
"D0",
"D1",
"D2",
"D3",
"D4",
"D5",
"D6",
"D7",
"D8",
"D9",
"D10",
"D11",
"D12",
"D13",
"D14",
"D15",
};
static const char *coupling[] = {
"AC",
"DC",
"GND",
};
/* Do not change the order of entries */
static const char *data_sources[] = {
"Live",
"Memory",
"Segmented",
};
enum vendor {
RIGOL,
AGILENT,
};
enum series {
VS5000,
DS1000,
DS2000,
DS2000A,
DSO1000,
};
/* short name, full name */
static const struct rigol_ds_vendor supported_vendors[] = {
[RIGOL] = {"Rigol", "Rigol Technologies"},
[AGILENT] = {"Agilent", "Rigol Technologies"},
};
#define VENDOR(x) &supported_vendors[x]
/* vendor, series, protocol, max timebase, min vdiv, number of horizontal divs,
* live waveform samples, memory buffer samples */
static const struct rigol_ds_series supported_series[] = {
[VS5000] = {VENDOR(RIGOL), "VS5000", PROTOCOL_V1, FORMAT_RAW,
{50, 1}, {2, 1000}, 14, 2048, 0},
[DS1000] = {VENDOR(RIGOL), "DS1000", PROTOCOL_V2, FORMAT_IEEE488_2,
{50, 1}, {2, 1000}, 12, 600, 1048576},
[DS2000] = {VENDOR(RIGOL), "DS2000", PROTOCOL_V3, FORMAT_IEEE488_2,
{500, 1}, {2, 1000}, 14, 1400, 14000},
[DS2000A] = {VENDOR(RIGOL), "DS2000A", PROTOCOL_V3, FORMAT_IEEE488_2,
{1000, 1}, {500, 1000000}, 14, 1400, 14000},
[DSO1000] = {VENDOR(AGILENT), "DSO1000", PROTOCOL_V3, FORMAT_IEEE488_2,
{50, 1}, {2, 1000}, 12, 600, 20480},
};
#define SERIES(x) &supported_series[x]
/* series, model, min timebase, analog channels, digital */
static const struct rigol_ds_model supported_models[] = {
{SERIES(VS5000), "VS5022", {20, 1000000000}, 2, false},
{SERIES(VS5000), "VS5042", {10, 1000000000}, 2, false},
{SERIES(VS5000), "VS5062", {5, 1000000000}, 2, false},
{SERIES(VS5000), "VS5102", {2, 1000000000}, 2, false},
{SERIES(VS5000), "VS5202", {2, 1000000000}, 2, false},
{SERIES(VS5000), "VS5022D", {20, 1000000000}, 2, true},
{SERIES(VS5000), "VS5042D", {10, 1000000000}, 2, true},
{SERIES(VS5000), "VS5062D", {5, 1000000000}, 2, true},
{SERIES(VS5000), "VS5102D", {2, 1000000000}, 2, true},
{SERIES(VS5000), "VS5202D", {2, 1000000000}, 2, true},
{SERIES(DS1000), "DS1052E", {5, 1000000000}, 2, false},
{SERIES(DS1000), "DS1102E", {2, 1000000000}, 2, false},
{SERIES(DS1000), "DS1152E", {2, 1000000000}, 2, false},
{SERIES(DS1000), "DS1052D", {5, 1000000000}, 2, true},
{SERIES(DS1000), "DS1102D", {2, 1000000000}, 2, true},
{SERIES(DS1000), "DS1152D", {2, 1000000000}, 2, true},
{SERIES(DS2000), "DS2072", {5, 1000000000}, 2, false},
{SERIES(DS2000), "DS2102", {5, 1000000000}, 2, false},
{SERIES(DS2000), "DS2202", {2, 1000000000}, 2, false},
{SERIES(DS2000), "DS2302", {1, 1000000000}, 2, false},
{SERIES(DS2000A), "DS2072A", {5, 1000000000}, 2, false},
{SERIES(DS2000A), "DS2102A", {5, 1000000000}, 2, false},
{SERIES(DS2000A), "DS2202A", {2, 1000000000}, 2, false},
{SERIES(DS2000A), "DS2302A", {1, 1000000000}, 2, false},
{SERIES(DSO1000), "DSO1002A", {5, 1000000000}, 2, false},
{SERIES(DSO1000), "DSO1004A", {5, 1000000000}, 4, false},
{SERIES(DSO1000), "DSO1012A", {2, 1000000000}, 2, false},
{SERIES(DSO1000), "DSO1014A", {2, 1000000000}, 4, false},
{SERIES(DSO1000), "DSO1022A", {2, 1000000000}, 2, false},
{SERIES(DSO1000), "DSO1024A", {2, 1000000000}, 4, false},
};
SR_PRIV struct sr_dev_driver rigol_ds_driver_info;
static struct sr_dev_driver *di = &rigol_ds_driver_info;
static void clear_helper(void *priv)
{
struct dev_context *devc;
devc = priv;
g_free(devc->data);
g_free(devc->buffer);
g_free(devc->coupling[0]);
g_free(devc->coupling[1]);
g_free(devc->trigger_source);
g_free(devc->trigger_slope);
g_slist_free(devc->analog_groups[0].channels);
g_slist_free(devc->analog_groups[1].channels);
g_slist_free(devc->digital_group.channels);
}
static int dev_clear(void)
{
return std_dev_clear(di, clear_helper);
}
static int init(struct sr_context *sr_ctx)
{
return std_init(sr_ctx, di, LOG_PREFIX);
}
static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
{
struct dev_context *devc;
struct sr_dev_inst *sdi;
struct sr_scpi_hw_info *hw_info;
struct sr_channel *ch;
long n[3];
unsigned int i;
const struct rigol_ds_model *model = NULL;
gchar *channel_name, **version;
if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
sr_info("Couldn't get IDN response.");
sr_scpi_close(scpi);
sr_scpi_free(scpi);
return NULL;
}
for (i = 0; i < ARRAY_SIZE(supported_models); i++) {
if (!strcasecmp(hw_info->manufacturer,
supported_models[i].series->vendor->full_name) &&
!strcmp(hw_info->model, supported_models[i].name)) {
model = &supported_models[i];
break;
}
}
if (!model || !(sdi = sr_dev_inst_new(0, SR_ST_ACTIVE,
model->series->vendor->name,
model->name,
hw_info->firmware_version))) {
sr_scpi_hw_info_free(hw_info);
sr_scpi_close(scpi);
sr_scpi_free(scpi);
return NULL;
}
sr_scpi_close(scpi);
sdi->conn = scpi;
sdi->driver = di;
sdi->inst_type = SR_INST_SCPI;
if (!(devc = g_try_malloc0(sizeof(struct dev_context))))
return NULL;
devc->limit_frames = 0;
devc->model = model;
devc->format = model->series->format;
/* DS1000 models with firmware before 0.2.4 used the old data format. */
if (model->series == SERIES(DS1000)) {
version = g_strsplit(hw_info->firmware_version, ".", 0);
do {
if (!version[0] || !version[1] || !version[2])
break;
if (version[0][0] == 0 || version[1][0] == 0 || version[2][0] == 0)
break;
for (i = 0; i < 3; i++) {
if (sr_atol(version[i], &n[i]) != SR_OK)
break;
}
if (i != 3)
break;
if (n[0] != 0 || n[1] > 2)
break;
if (n[1] == 2 && n[2] > 3)
break;
sr_dbg("Found DS1000 firmware < 0.2.4, using raw data format.");
devc->format = FORMAT_RAW;
} while(0);
g_strfreev(version);
}
sr_scpi_hw_info_free(hw_info);
for (i = 0; i < model->analog_channels; i++) {
if (!(channel_name = g_strdup_printf("CH%d", i + 1)))
return NULL;
ch = sr_probe_new(i, SR_PROBE_ANALOG, TRUE, channel_name);
sdi->channels = g_slist_append(sdi->channels, ch);
devc->analog_groups[i].name = channel_name;
devc->analog_groups[i].channels = g_slist_append(NULL, ch);
sdi->channel_groups = g_slist_append(sdi->channel_groups,
&devc->analog_groups[i]);
}
if (devc->model->has_digital) {
for (i = 0; i < 16; i++) {
if (!(channel_name = g_strdup_printf("D%d", i)))
return NULL;
ch = sr_probe_new(i, SR_PROBE_LOGIC, TRUE, channel_name);
g_free(channel_name);
if (!ch)
return NULL;
sdi->channels = g_slist_append(sdi->channels, ch);
devc->digital_group.channels = g_slist_append(
devc->digital_group.channels, ch);
}
devc->digital_group.name = "LA";
sdi->channel_groups = g_slist_append(sdi->channel_groups,
&devc->digital_group);
}
for (i = 0; i < NUM_TIMEBASE; i++) {
if (!memcmp(&devc->model->min_timebase, &timebases[i], sizeof(uint64_t[2])))
devc->timebases = &timebases[i];
if (!memcmp(&devc->model->series->max_timebase, &timebases[i], sizeof(uint64_t[2])))
devc->num_timebases = &timebases[i] - devc->timebases + 1;
}
for (i = 0; i < NUM_VDIV; i++)
if (!memcmp(&devc->model->series->min_vdiv, &vdivs[i], sizeof(uint64_t[2])))
devc->vdivs = &vdivs[i];
if (!(devc->buffer = g_try_malloc(ACQ_BUFFER_SIZE)))
return NULL;
if (!(devc->data = g_try_malloc(ACQ_BUFFER_SIZE * sizeof(float))))
return NULL;
devc->data_source = DATA_SOURCE_LIVE;
sdi->priv = devc;
return sdi;
}
static GSList *scan(GSList *options)
{
return sr_scpi_scan(di->priv, options, probe_device);
}
static GSList *dev_list(void)
{
return ((struct drv_context *)(di->priv))->instances;
}
static int dev_open(struct sr_dev_inst *sdi)
{
struct sr_scpi_dev_inst *scpi = sdi->conn;
if (sr_scpi_open(scpi) < 0)
return SR_ERR;
if (rigol_ds_get_dev_cfg(sdi) != SR_OK)
return SR_ERR;
sdi->status = SR_ST_ACTIVE;
return SR_OK;
}
static int dev_close(struct sr_dev_inst *sdi)
{
struct sr_scpi_dev_inst *scpi;
struct dev_context *devc;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
scpi = sdi->conn;
devc = sdi->priv;
if (devc->model->series->protocol == PROTOCOL_V2)
rigol_ds_config_set(sdi, ":KEY:LOCK DISABLE");
if (scpi) {
if (sr_scpi_close(scpi) < 0)
return SR_ERR;
sdi->status = SR_ST_INACTIVE;
}
return SR_OK;
}
static int cleanup(void)
{
return dev_clear();
}
static int analog_frame_size(const struct sr_dev_inst *sdi)
{
struct dev_context *devc = sdi->priv;
struct sr_channel *ch;
int analog_channels = 0;
GSList *l;
for (l = sdi->channels; l; l = l->next) {
ch = l->data;
if (ch->type == SR_PROBE_ANALOG && ch->enabled)
analog_channels++;
}
if (analog_channels == 0)
return 0;
switch (devc->data_source) {
case DATA_SOURCE_LIVE:
return devc->model->series->live_samples;
case DATA_SOURCE_MEMORY:
return devc->model->series->buffer_samples / analog_channels;
default:
return 0;
}
}
static int digital_frame_size(const struct sr_dev_inst *sdi)
{
struct dev_context *devc = sdi->priv;
switch (devc->data_source) {
case DATA_SOURCE_LIVE:
return devc->model->series->live_samples * 2;
case DATA_SOURCE_MEMORY:
return devc->model->series->buffer_samples * 2;
default:
return 0;
}
}
static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
struct dev_context *devc;
struct sr_channel *ch;
const char *tmp_str;
uint64_t samplerate;
int analog_channel = -1;
float smallest_diff = 0.0000000001;
int idx = -1;
unsigned i;
if (!sdi || !(devc = sdi->priv))
return SR_ERR_ARG;
/* If a channel group is specified, it must be a valid one. */
if (cg && !g_slist_find(sdi->channel_groups, cg)) {
sr_err("Invalid channel group specified.");
return SR_ERR;
}
if (cg) {
ch = g_slist_nth_data(cg->channels, 0);
if (!ch)
return SR_ERR;
if (ch->type == SR_PROBE_ANALOG) {
if (ch->name[2] < '1' || ch->name[2] > '4')
return SR_ERR;
analog_channel = ch->name[2] - '1';
}
}
switch (id) {
case SR_CONF_NUM_TIMEBASE:
*data = g_variant_new_int32(devc->model->series->num_horizontal_divs);
break;
case SR_CONF_NUM_VDIV:
*data = g_variant_new_int32(NUM_VDIV);
case SR_CONF_DATA_SOURCE:
if (devc->data_source == DATA_SOURCE_LIVE)
*data = g_variant_new_string("Live");
else if (devc->data_source == DATA_SOURCE_MEMORY)
*data = g_variant_new_string("Memory");
else
*data = g_variant_new_string("Segmented");
break;
case SR_CONF_SAMPLERATE:
if (devc->data_source == DATA_SOURCE_LIVE) {
samplerate = analog_frame_size(sdi) /
(devc->timebase * devc->model->series->num_horizontal_divs);
*data = g_variant_new_uint64(samplerate);
} else {
return SR_ERR_NA;
}
break;
case SR_CONF_TRIGGER_SOURCE:
if (!strcmp(devc->trigger_source, "ACL"))
tmp_str = "AC Line";
else if (!strcmp(devc->trigger_source, "CHAN1"))
tmp_str = "CH1";
else if (!strcmp(devc->trigger_source, "CHAN2"))
tmp_str = "CH2";
else if (!strcmp(devc->trigger_source, "CHAN3"))
tmp_str = "CH3";
else if (!strcmp(devc->trigger_source, "CHAN4"))
tmp_str = "CH4";
else
tmp_str = devc->trigger_source;
*data = g_variant_new_string(tmp_str);
break;
case SR_CONF_TIMEBASE:
for (i = 0; i < devc->num_timebases; i++) {
float tb = (float)devc->timebases[i][0] / devc->timebases[i][1];
float diff = fabs(devc->timebase - tb);
if (diff < smallest_diff) {
smallest_diff = diff;
idx = i;
}
}
if (idx < 0)
return SR_ERR_NA;
*data = g_variant_new("(tt)", devc->timebases[idx][0],
devc->timebases[idx][1]);
break;
case SR_CONF_VDIV:
if (analog_channel < 0)
return SR_ERR_NA;
for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
float vdiv = (float)vdivs[i][0] / vdivs[i][1];
float diff = fabs(devc->vdiv[analog_channel] - vdiv);
if (diff < smallest_diff) {
smallest_diff = diff;
idx = i;
}
}
if (idx < 0)
return SR_ERR_NA;
*data = g_variant_new("(tt)", vdivs[idx][0], vdivs[idx][1]);
break;
case SR_CONF_COUPLING:
if (analog_channel < 0)
return SR_ERR_NA;
*data = g_variant_new_string(devc->coupling[analog_channel]);
break;
default:
return SR_ERR_NA;
}
return SR_OK;
}
static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
struct dev_context *devc;
uint64_t p, q;
double t_dbl;
unsigned int i, j;
int ret;
const char *tmp_str;
char buffer[16];
if (!(devc = sdi->priv))
return SR_ERR_ARG;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
/* If a channel group is specified, it must be a valid one. */
if (cg && !g_slist_find(sdi->channel_groups, cg)) {
sr_err("Invalid channel group specified.");
return SR_ERR;
}
ret = SR_OK;
switch (id) {
case SR_CONF_LIMIT_FRAMES:
devc->limit_frames = g_variant_get_uint64(data);
break;
case SR_CONF_TRIGGER_SLOPE:
tmp_str = g_variant_get_string(data, NULL);
if (!tmp_str || !(tmp_str[0] == 'f' || tmp_str[0] == 'r'))
return SR_ERR_ARG;
g_free(devc->trigger_slope);
devc->trigger_slope = g_strdup((tmp_str[0] == 'r') ? "POS" : "NEG");
ret = rigol_ds_config_set(sdi, ":TRIG:EDGE:SLOP %s", devc->trigger_slope);
break;
case SR_CONF_HORIZ_TRIGGERPOS:
t_dbl = g_variant_get_double(data);
if (t_dbl < 0.0 || t_dbl > 1.0)
return SR_ERR;
devc->horiz_triggerpos = t_dbl;
/* We have the trigger offset as a percentage of the frame, but
* need to express this in seconds. */
t_dbl = -(devc->horiz_triggerpos - 0.5) * devc->timebase * devc->num_timebases;
g_ascii_formatd(buffer, sizeof(buffer), "%.6f", t_dbl);
ret = rigol_ds_config_set(sdi, ":TIM:OFFS %s", buffer);
break;
case SR_CONF_TIMEBASE:
g_variant_get(data, "(tt)", &p, &q);
for (i = 0; i < devc->num_timebases; i++) {
if (devc->timebases[i][0] == p && devc->timebases[i][1] == q) {
devc->timebase = (float)p / q;
g_ascii_formatd(buffer, sizeof(buffer), "%.9f",
devc->timebase);
ret = rigol_ds_config_set(sdi, ":TIM:SCAL %s", buffer);
break;
}
}
if (i == devc->num_timebases)
ret = SR_ERR_ARG;
break;
case SR_CONF_TRIGGER_SOURCE:
tmp_str = g_variant_get_string(data, NULL);
for (i = 0; i < ARRAY_SIZE(trigger_sources); i++) {
if (!strcmp(trigger_sources[i], tmp_str)) {
g_free(devc->trigger_source);
devc->trigger_source = g_strdup(trigger_sources[i]);
if (!strcmp(devc->trigger_source, "AC Line"))
tmp_str = "ACL";
else if (!strcmp(devc->trigger_source, "CH1"))
tmp_str = "CHAN1";
else if (!strcmp(devc->trigger_source, "CH2"))
tmp_str = "CHAN2";
else if (!strcmp(devc->trigger_source, "CH3"))
tmp_str = "CHAN3";
else if (!strcmp(devc->trigger_source, "CH4"))
tmp_str = "CHAN4";
else
tmp_str = (char *)devc->trigger_source;
ret = rigol_ds_config_set(sdi, ":TRIG:EDGE:SOUR %s", tmp_str);
break;
}
}
if (i == ARRAY_SIZE(trigger_sources))
ret = SR_ERR_ARG;
break;
case SR_CONF_VDIV:
if (!cg) {
sr_err("No channel group specified.");
return SR_ERR_CHANNEL_GROUP;
}
g_variant_get(data, "(tt)", &p, &q);
for (i = 0; i < 2; i++) {
if (cg == &devc->analog_groups[i]) {
for (j = 0; j < ARRAY_SIZE(vdivs); j++) {
if (vdivs[j][0] != p || vdivs[j][1] != q)
continue;
devc->vdiv[i] = (float)p / q;
g_ascii_formatd(buffer, sizeof(buffer), "%.3f",
devc->vdiv[i]);
return rigol_ds_config_set(sdi, ":CHAN%d:SCAL %s", i + 1,
buffer);
}
return SR_ERR_ARG;
}
}
return SR_ERR_NA;
case SR_CONF_COUPLING:
if (!cg) {
sr_err("No channel group specified.");
return SR_ERR_CHANNEL_GROUP;
}
tmp_str = g_variant_get_string(data, NULL);
for (i = 0; i < 2; i++) {
if (cg == &devc->analog_groups[i]) {
for (j = 0; j < ARRAY_SIZE(coupling); j++) {
if (!strcmp(tmp_str, coupling[j])) {
g_free(devc->coupling[i]);
devc->coupling[i] = g_strdup(coupling[j]);
return rigol_ds_config_set(sdi, ":CHAN%d:COUP %s", i + 1,
devc->coupling[i]);
}
}
return SR_ERR_ARG;
}
}
return SR_ERR_NA;
case SR_CONF_DATA_SOURCE:
tmp_str = g_variant_get_string(data, NULL);
if (!strcmp(tmp_str, "Live"))
devc->data_source = DATA_SOURCE_LIVE;
else if (devc->model->series->protocol >= PROTOCOL_V2
&& !strcmp(tmp_str, "Memory"))
devc->data_source = DATA_SOURCE_MEMORY;
else if (devc->model->series->protocol >= PROTOCOL_V3
&& !strcmp(tmp_str, "Segmented"))
devc->data_source = DATA_SOURCE_SEGMENTED;
else
return SR_ERR;
break;
default:
ret = SR_ERR_NA;
break;
}
return ret;
}
static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
GVariant *tuple, *rational[2];
GVariantBuilder gvb;
unsigned int i;
struct dev_context *devc = NULL;
if (sdi)
devc = sdi->priv;
if (key == SR_CONF_SCAN_OPTIONS) {
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
return SR_OK;
} else if (key == SR_CONF_DEVICE_OPTIONS && cg == NULL) {
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
return SR_OK;
}
/* Every other option requires a valid device instance. */
if (!sdi || !(devc = sdi->priv))
return SR_ERR_ARG;
/* If a channel group is specified, it must be a valid one. */
if (cg) {
if (cg != &devc->analog_groups[0]
&& cg != &devc->analog_groups[1]) {
sr_err("Invalid channel group specified.");
return SR_ERR;
}
}
switch (key) {
case SR_CONF_DEVICE_OPTIONS:
if (!cg) {
sr_err("No channel group specified.");
return SR_ERR_CHANNEL_GROUP;
}
if (cg == &devc->digital_group) {
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
NULL, 0, sizeof(int32_t));
return SR_OK;
} else {
for (i = 0; i < 2; i++) {
if (cg == &devc->analog_groups[i]) {
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
analog_hwcaps, ARRAY_SIZE(analog_hwcaps), sizeof(int32_t));
return SR_OK;
}
}
return SR_ERR_NA;
}
break;
case SR_CONF_COUPLING:
if (!cg) {
sr_err("No channel group specified.");
return SR_ERR_CHANNEL_GROUP;
}
*data = g_variant_new_strv(coupling, ARRAY_SIZE(coupling));
break;
case SR_CONF_VDIV:
if (!devc)
/* Can't know this until we have the exact model. */
return SR_ERR_ARG;
if (!cg) {
sr_err("No channel group specified.");
return SR_ERR_CHANNEL_GROUP;
}
g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
for (i = 0; i < NUM_VDIV; i++) {
rational[0] = g_variant_new_uint64(devc->vdivs[i][0]);
rational[1] = g_variant_new_uint64(devc->vdivs[i][1]);
tuple = g_variant_new_tuple(rational, 2);
g_variant_builder_add_value(&gvb, tuple);
}
*data = g_variant_builder_end(&gvb);
break;
case SR_CONF_TIMEBASE:
if (!devc)
/* Can't know this until we have the exact model. */
return SR_ERR_ARG;
if (devc->num_timebases <= 0)
return SR_ERR_NA;
g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
for (i = 0; i < devc->num_timebases; i++) {
rational[0] = g_variant_new_uint64(devc->timebases[i][0]);
rational[1] = g_variant_new_uint64(devc->timebases[i][1]);
tuple = g_variant_new_tuple(rational, 2);
g_variant_builder_add_value(&gvb, tuple);
}
*data = g_variant_builder_end(&gvb);
break;
case SR_CONF_TRIGGER_SOURCE:
if (!devc)
/* Can't know this until we have the exact model. */
return SR_ERR_ARG;
*data = g_variant_new_strv(trigger_sources,
devc->model->has_digital ? ARRAY_SIZE(trigger_sources) : 4);
break;
case SR_CONF_DATA_SOURCE:
if (!devc)
/* Can't know this until we have the exact model. */
return SR_ERR_ARG;
switch (devc->model->series->protocol) {
case PROTOCOL_V1:
*data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources) - 2);
break;
case PROTOCOL_V2:
*data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources) - 1);
break;
default:
*data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
break;
}
break;
default:
return SR_ERR_NA;
}
return SR_OK;
}
static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
{
struct sr_scpi_dev_inst *scpi;
struct dev_context *devc;
struct sr_channel *ch;
struct sr_datafeed_packet packet;
GSList *l;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
scpi = sdi->conn;
devc = sdi->priv;
devc->num_frames = 0;
for (l = sdi->channels; l; l = l->next) {
ch = l->data;
sr_dbg("handling channel %s", ch->name);
if (ch->type == SR_PROBE_ANALOG) {
if (ch->enabled)
devc->enabled_analog_channels = g_slist_append(
devc->enabled_analog_channels, ch);
if (ch->enabled != devc->analog_channels[ch->index]) {
/* Enabled channel is currently disabled, or vice versa. */
if (rigol_ds_config_set(sdi, ":CHAN%d:DISP %s", ch->index + 1,
ch->enabled ? "ON" : "OFF") != SR_OK)
return SR_ERR;
devc->analog_channels[ch->index] = ch->enabled;
}
} else if (ch->type == SR_PROBE_LOGIC) {
if (ch->enabled) {
devc->enabled_digital_channels = g_slist_append(
devc->enabled_digital_channels, ch);
/* Turn on LA module if currently off. */
if (!devc->la_enabled) {
if (rigol_ds_config_set(sdi, ":LA:DISP ON") != SR_OK)
return SR_ERR;
devc->la_enabled = TRUE;
}
}
if (ch->enabled != devc->digital_channels[ch->index]) {
/* Enabled channel is currently disabled, or vice versa. */
if (rigol_ds_config_set(sdi, ":DIG%d:TURN %s", ch->index,
ch->enabled ? "ON" : "OFF") != SR_OK)
return SR_ERR;
devc->digital_channels[ch->index] = ch->enabled;
}
}
}
if (!devc->enabled_analog_channels && !devc->enabled_digital_channels)
return SR_ERR;
/* Turn off LA module if on and no digital channels selected. */
if (devc->la_enabled && !devc->enabled_digital_channels)
if (rigol_ds_config_set(sdi, ":LA:DISP OFF") != SR_OK)
return SR_ERR;
/* Set memory mode. */
if (devc->data_source == DATA_SOURCE_SEGMENTED) {
sr_err("Data source 'Segmented' not yet supported");
return SR_ERR;
}
devc->analog_frame_size = analog_frame_size(sdi);
devc->digital_frame_size = digital_frame_size(sdi);
switch (devc->model->series->protocol) {
case PROTOCOL_V2:
if (rigol_ds_config_set(sdi, ":ACQ:MDEP LONG") != SR_OK)
return SR_ERR;
break;
case PROTOCOL_V3:
/* Apparently for the DS2000 the memory
* depth can only be set in Running state -
* this matches the behaviour of the UI. */
if (rigol_ds_config_set(sdi, ":RUN") != SR_OK)
return SR_ERR;
if (rigol_ds_config_set(sdi, ":ACQ:MDEP %d",
devc->analog_frame_size) != SR_OK)
return SR_ERR;
if (rigol_ds_config_set(sdi, ":STOP") != SR_OK)
return SR_ERR;
break;
default:
break;
}
if (devc->data_source == DATA_SOURCE_LIVE)
if (rigol_ds_config_set(sdi, ":RUN") != SR_OK)
return SR_ERR;
sr_scpi_source_add(scpi, G_IO_IN, 50, rigol_ds_receive, (void *)sdi);
/* Send header packet to the session bus. */
std_session_send_df_header(cb_data, LOG_PREFIX);
if (devc->enabled_analog_channels)
devc->channel_entry = devc->enabled_analog_channels;
else
devc->channel_entry = devc->enabled_digital_channels;
if (rigol_ds_capture_start(sdi) != SR_OK)
return SR_ERR;
/* Start of first frame. */
packet.type = SR_DF_FRAME_BEGIN;
sr_session_send(cb_data, &packet);
return SR_OK;
}
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
struct dev_context *devc;
struct sr_scpi_dev_inst *scpi;
struct sr_datafeed_packet packet;
(void)cb_data;
devc = sdi->priv;
if (sdi->status != SR_ST_ACTIVE) {
sr_err("Device inactive, can't stop acquisition.");
return SR_ERR;
}
/* End of last frame. */
packet.type = SR_DF_END;
sr_session_send(sdi, &packet);
g_slist_free(devc->enabled_analog_channels);
g_slist_free(devc->enabled_digital_channels);
devc->enabled_analog_channels = NULL;
devc->enabled_digital_channels = NULL;
scpi = sdi->conn;
sr_scpi_source_remove(scpi);
return SR_OK;
}
SR_PRIV struct sr_dev_driver rigol_ds_driver_info = {
.name = "rigol-ds",
.longname = "Rigol DS",
.api_version = 1,
.init = init,
.cleanup = cleanup,
.scan = scan,
.dev_list = dev_list,
.dev_clear = dev_clear,
.config_get = config_get,
.config_set = config_set,
.config_list = config_list,
.dev_open = dev_open,
.dev_close = dev_close,
.dev_acquisition_start = dev_acquisition_start,
.dev_acquisition_stop = dev_acquisition_stop,
.priv = NULL,
};
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