void run_session(void)
{
GSList *devices;
GHashTable *devargs;
GVariant *gvar;
struct sr_dev_inst *sdi;
uint64_t min_samples, max_samples;
devices = device_scan();
if (!devices) {
g_critical("No devices found.");
return;
}
if (g_slist_length(devices) > 1) {
g_critical("sigrok-cli only supports one device for capturing.");
return;
}
sdi = devices->data;
sr_session_new();
sr_session_datafeed_callback_add(datafeed_in, NULL);
if (sr_dev_open(sdi) != SR_OK) {
g_critical("Failed to open device.");
return;
}
if (sr_session_dev_add(sdi) != SR_OK) {
g_critical("Failed to add device to session.");
sr_session_destroy();
return;
}
if (opt_config) {
if ((devargs = parse_generic_arg(opt_config, FALSE))) {
if (set_dev_options(sdi, devargs) != SR_OK)
return;
g_hash_table_destroy(devargs);
}
}
if (select_channels(sdi) != SR_OK) {
g_critical("Failed to set channels.");
sr_session_destroy();
return;
}
if (opt_triggers) {
if (!parse_triggerstring(sdi, opt_triggers)) {
sr_session_destroy();
return;
}
}
if (opt_continuous) {
if (!sr_dev_has_option(sdi, SR_CONF_CONTINUOUS)) {
g_critical("This device does not support continuous sampling.");
sr_session_destroy();
return;
}
}
if (opt_time) {
if (set_limit_time(sdi) != SR_OK) {
sr_session_destroy();
return;
}
}
if (opt_samples) {
if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)) {
g_critical("Invalid sample limit '%s'.", opt_samples);
sr_session_destroy();
return;
}
if (sr_config_list(sdi->driver, sdi, NULL,
SR_CONF_LIMIT_SAMPLES, &gvar) == SR_OK) {
/* The device has no compression, or compression is turned
* off, and publishes its sample memory size. */
g_variant_get(gvar, "(tt)", &min_samples, &max_samples);
g_variant_unref(gvar);
if (limit_samples < min_samples) {
g_critical("The device stores at least %"PRIu64
" samples with the current settings.", min_samples);
}
if (limit_samples > max_samples) {
g_critical("The device can store only %"PRIu64
" samples with the current settings.", max_samples);
}
}
gvar = g_variant_new_uint64(limit_samples);
if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_SAMPLES, gvar) != SR_OK) {
g_critical("Failed to configure sample limit.");
sr_session_destroy();
return;
}
}
if (opt_frames) {
if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)) {
g_critical("Invalid sample limit '%s'.", opt_samples);
sr_session_destroy();
return;
}
gvar = g_variant_new_uint64(limit_frames);
if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_FRAMES, gvar) != SR_OK) {
g_critical("Failed to configure frame limit.");
sr_session_destroy();
return;
}
}
if (sr_session_start() != SR_OK) {
g_critical("Failed to start session.");
sr_session_destroy();
return;
}
if (opt_continuous)
add_anykey();
sr_session_run();
if (opt_continuous)
clear_anykey();
sr_session_datafeed_callback_remove_all();
sr_session_destroy();
g_slist_free(devices);
}
static void run_session(void)
{
struct sr_dev *dev;
GHashTable *devargs;
int num_devs, max_probes, i;
uint64_t time_msec;
char **probelist, *devspec;
devargs = NULL;
if (opt_dev) {
devargs = parse_generic_arg(opt_dev);
devspec = g_hash_table_lookup(devargs, "sigrok_key");
dev = parse_devstring(devspec);
if (!dev) {
g_critical("Device not found.");
return;
}
g_hash_table_remove(devargs, "sigrok_key");
} else {
num_devs = num_real_devs();
if (num_devs == 1) {
/* No device specified, but there is only one. */
devargs = NULL;
dev = parse_devstring("0");
} else if (num_devs == 0) {
g_critical("No devices found.");
return;
} else {
g_critical("%d devices found, please select one.", num_devs);
return;
}
}
sr_session_new();
sr_session_datafeed_callback_add(datafeed_in);
if (sr_session_dev_add(dev) != SR_OK) {
g_critical("Failed to use device.");
sr_session_destroy();
return;
}
if (devargs) {
if (set_dev_options(dev, devargs) != SR_OK) {
sr_session_destroy();
return;
}
g_hash_table_destroy(devargs);
}
if (select_probes(dev) != SR_OK)
return;
if (opt_continuous) {
if (!sr_driver_hwcap_exists(dev->driver, SR_HWCAP_CONTINUOUS)) {
g_critical("This device does not support continuous sampling.");
sr_session_destroy();
return;
}
}
if (opt_triggers) {
probelist = sr_parse_triggerstring(dev, opt_triggers);
if (!probelist) {
sr_session_destroy();
return;
}
max_probes = g_slist_length(dev->probes);
for (i = 0; i < max_probes; i++) {
if (probelist[i]) {
sr_dev_trigger_set(dev, i + 1, probelist[i]);
g_free(probelist[i]);
}
}
g_free(probelist);
}
if (opt_time) {
time_msec = sr_parse_timestring(opt_time);
if (time_msec == 0) {
g_critical("Invalid time '%s'", opt_time);
sr_session_destroy();
return;
}
if (sr_driver_hwcap_exists(dev->driver, SR_HWCAP_LIMIT_MSEC)) {
if (dev->driver->dev_config_set(dev->driver_index,
SR_HWCAP_LIMIT_MSEC, &time_msec) != SR_OK) {
g_critical("Failed to configure time limit.");
sr_session_destroy();
return;
}
}
else {
/* time limit set, but device doesn't support this...
* convert to samples based on the samplerate.
*/
limit_samples = 0;
if (sr_dev_has_hwcap(dev, SR_HWCAP_SAMPLERATE)) {
const uint64_t *samplerate;
sr_dev_info_get(dev, SR_DI_CUR_SAMPLERATE,
(const void **)&samplerate);
limit_samples = (*samplerate) * time_msec / (uint64_t)1000;
}
if (limit_samples == 0) {
g_critical("Not enough time at this samplerate.");
sr_session_destroy();
return;
}
if (dev->driver->dev_config_set(dev->driver_index,
SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK) {
g_critical("Failed to configure time-based sample limit.");
sr_session_destroy();
return;
}
}
}
if (opt_samples) {
if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
|| (dev->driver->dev_config_set(dev->driver_index,
SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK)) {
g_critical("Failed to configure sample limit.");
sr_session_destroy();
return;
}
}
if (opt_frames) {
if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)
|| (dev->driver->dev_config_set(dev->driver_index,
SR_HWCAP_LIMIT_FRAMES, &limit_frames) != SR_OK)) {
printf("Failed to configure frame limit.\n");
sr_session_destroy();
return;
}
}
if (dev->driver->dev_config_set(dev->driver_index,
SR_HWCAP_PROBECONFIG, (char *)dev->probes) != SR_OK) {
g_critical("Failed to configure probes.");
sr_session_destroy();
return;
}
if (sr_session_start() != SR_OK) {
g_critical("Failed to start session.");
sr_session_destroy();
return;
}
if (opt_continuous)
add_anykey();
sr_session_run();
if (opt_continuous)
clear_anykey();
if (opt_output_file && default_output_format) {
if (sr_session_save(opt_output_file) != SR_OK)
g_critical("Failed to save session.");
}
sr_session_destroy();
}
