static void get_option(void)
{
struct sr_dev_inst *sdi;
struct sr_channel_group *cg;
const struct sr_config_info *ci;
GSList *devices;
GVariant *gvar;
GHashTable *devargs;
int ret;
char *s;
struct sr_dev_driver *driver;
if (!(devices = device_scan())) {
g_critical("No devices found.");
return;
}
sdi = devices->data;
g_slist_free(devices);
driver = sr_dev_inst_driver_get(sdi);
if (sr_dev_open(sdi) != SR_OK) {
g_critical("Failed to open device.");
return;
}
cg = select_channel_group(sdi);
if (!(ci = sr_config_info_name_get(opt_get)))
g_critical("Unknown option '%s'", opt_get);
if ((devargs = parse_generic_arg(opt_config, FALSE)))
set_dev_options(sdi, devargs);
else devargs = NULL;
if ((ret = maybe_config_get(driver, sdi, cg, ci->key, &gvar)) != SR_OK)
g_critical("Failed to get '%s': %s", opt_get, sr_strerror(ret));
s = g_variant_print(gvar, FALSE);
printf("%s\n", s);
g_free(s);
g_variant_unref(gvar);
sr_dev_close(sdi);
if (devargs)
g_hash_table_destroy(devargs);
}
int set_dev_options(struct sr_dev_inst *sdi, GHashTable *args)
{
struct sr_config src;
struct sr_channel_group *cg;
GHashTableIter iter;
gpointer key, value;
int ret;
g_hash_table_iter_init(&iter, args);
while (g_hash_table_iter_next(&iter, &key, &value)) {
if ((ret = opt_to_gvar(key, value, &src)) != 0)
return ret;
cg = select_channel_group(sdi);
ret = sr_config_set(sdi, cg, src.key, src.data);
if (ret != SR_OK) {
g_critical("Failed to set device option '%s'.", (char *)key);
return ret;
}
}
return SR_OK;
}
void show_dev_detail(void)
{
struct sr_dev_inst *sdi;
const struct sr_config_info *srci;
struct sr_channel *ch;
struct sr_channel_group *channel_group, *cg;
GSList *devices, *cgl, *chl;
GVariant *gvar_opts, *gvar_dict, *gvar_list, *gvar;
gsize num_opts, num_elements;
double dlow, dhigh, dcur_low, dcur_high;
const uint64_t *uint64, p, q, low, high;
uint64_t cur_low, cur_high;
const int32_t *int32, *opts;
unsigned int num_devices, o, i;
char *tmp_str;
char *s, c;
const char **stropts;
if (!(devices = device_scan())) {
g_critical("No devices found.");
return;
}
num_devices = g_slist_length(devices);
if (num_devices > 1) {
g_critical("%d devices found. Use --scan to show them, "
"and select one to show.", num_devices);
return;
}
sdi = devices->data;
print_dev_line(sdi);
if (sr_dev_open(sdi) != SR_OK) {
g_critical("Failed to open device.");
return;
}
if ((sr_config_list(sdi->driver, NULL, NULL, SR_CONF_SCAN_OPTIONS,
&gvar_opts) == SR_OK)) {
opts = g_variant_get_fixed_array(gvar_opts, &num_elements,
sizeof(int32_t));
printf("Supported driver options:\n");
for (i = 0; i < num_elements; i++) {
if (!(srci = sr_config_info_get(opts[i])))
continue;
printf(" %s\n", srci->id);
}
g_variant_unref(gvar_opts);
}
/* Selected channels and channel group may affect which options are
* returned, or which values for them. */
select_channels(sdi);
channel_group = select_channel_group(sdi);
if ((sr_config_list(sdi->driver, sdi, channel_group, SR_CONF_DEVICE_OPTIONS,
&gvar_opts)) != SR_OK)
/* Driver supports no device instance options. */
return;
if (sdi->channel_groups) {
printf("Channel groups:\n");
for (cgl = sdi->channel_groups; cgl; cgl = cgl->next) {
cg = cgl->data;
printf(" %s: channel%s", cg->name,
g_slist_length(cg->channels) > 1 ? "s" : "");
for (chl = cg->channels; chl; chl = chl->next) {
ch = chl->data;
printf(" %s", ch->name);
}
printf("\n");
}
}
printf("Supported configuration options");
if (sdi->channel_groups) {
if (!channel_group)
printf(" across all channel groups");
else
printf(" on channel group %s", channel_group->name);
}
printf(":\n");
opts = g_variant_get_fixed_array(gvar_opts, &num_opts, sizeof(int32_t));
for (o = 0; o < num_opts; o++) {
if (!(srci = sr_config_info_get(opts[o])))
continue;
if (srci->key == SR_CONF_TRIGGER_MATCH) {
if (sr_config_list(sdi->driver, sdi, channel_group, srci->key,
&gvar_list) != SR_OK) {
printf("\n");
continue;
}
int32 = g_variant_get_fixed_array(gvar_list,
&num_elements, sizeof(int32_t));
printf(" Supported triggers: ");
for (i = 0; i < num_elements; i++) {
switch(int32[i]) {
case SR_TRIGGER_ZERO:
c = '0';
break;
case SR_TRIGGER_ONE:
c = '1';
break;
case SR_TRIGGER_RISING:
c = 'r';
break;
case SR_TRIGGER_FALLING:
c = 'f';
break;
case SR_TRIGGER_EDGE:
c = 'e';
break;
case SR_TRIGGER_OVER:
c = 'o';
break;
case SR_TRIGGER_UNDER:
c = 'u';
break;
default:
c = 0;
break;
}
if (c)
printf("%c ", c);
}
printf("\n");
g_variant_unref(gvar_list);
} else if (srci->key == SR_CONF_LIMIT_SAMPLES) {
/* If implemented in config_list(), this denotes the
* maximum number of samples a device can send. This
* really applies only to logic analyzers, and then
* only to those that don't support compression, or
* have it turned off by default. The values returned
* are the low/high limits. */
if (sr_config_list(sdi->driver, sdi, channel_group, srci->key,
&gvar) != SR_OK) {
continue;
}
g_variant_get(gvar, "(tt)", &low, &high);
g_variant_unref(gvar);
printf(" Maximum number of samples: %"PRIu64"\n", high);
} else if (srci->key == SR_CONF_SAMPLERATE) {
/* Supported samplerates */
printf(" %s", srci->id);
if (sr_config_list(sdi->driver, sdi, channel_group, SR_CONF_SAMPLERATE,
&gvar_dict) != SR_OK) {
printf("\n");
continue;
}
if ((gvar_list = g_variant_lookup_value(gvar_dict,
"samplerates", G_VARIANT_TYPE("at")))) {
uint64 = g_variant_get_fixed_array(gvar_list,
&num_elements, sizeof(uint64_t));
printf(" - supported samplerates:\n");
for (i = 0; i < num_elements; i++) {
if (!(s = sr_samplerate_string(uint64[i])))
continue;
printf(" %s\n", s);
g_free(s);
}
g_variant_unref(gvar_list);
} else if ((gvar_list = g_variant_lookup_value(gvar_dict,
"samplerate-steps", G_VARIANT_TYPE("at")))) {
uint64 = g_variant_get_fixed_array(gvar_list,
&num_elements, sizeof(uint64_t));
/* low */
if (!(s = sr_samplerate_string(uint64[0])))
continue;
printf(" (%s", s);
g_free(s);
/* high */
if (!(s = sr_samplerate_string(uint64[1])))
continue;
printf(" - %s", s);
g_free(s);
/* step */
if (!(s = sr_samplerate_string(uint64[2])))
continue;
printf(" in steps of %s)\n", s);
g_free(s);
g_variant_unref(gvar_list);
}
g_variant_unref(gvar_dict);
} else if (srci->key == SR_CONF_BUFFERSIZE) {
/* Supported buffer sizes */
printf(" %s", srci->id);
if (sr_config_list(sdi->driver, sdi, channel_group,
SR_CONF_BUFFERSIZE, &gvar_list) != SR_OK) {
printf("\n");
continue;
}
uint64 = g_variant_get_fixed_array(gvar_list,
&num_elements, sizeof(uint64_t));
printf(" - supported buffer sizes:\n");
for (i = 0; i < num_elements; i++)
printf(" %"PRIu64"\n", uint64[i]);
g_variant_unref(gvar_list);
} else if (srci->key == SR_CONF_TIMEBASE) {
/* Supported time bases */
printf(" %s", srci->id);
if (sr_config_list(sdi->driver, sdi, channel_group,
SR_CONF_TIMEBASE, &gvar_list) != SR_OK) {
printf("\n");
continue;
}
printf(" - supported time bases:\n");
num_elements = g_variant_n_children(gvar_list);
for (i = 0; i < num_elements; i++) {
gvar = g_variant_get_child_value(gvar_list, i);
g_variant_get(gvar, "(tt)", &p, &q);
s = sr_period_string(p * q);
printf(" %s\n", s);
g_free(s);
}
g_variant_unref(gvar_list);
} else if (srci->key == SR_CONF_VDIV) {
/* Supported volts/div values */
printf(" %s", srci->id);
if (sr_config_list(sdi->driver, sdi, channel_group,
SR_CONF_VDIV, &gvar_list) != SR_OK) {
printf("\n");
continue;
}
printf(" - supported volts/div:\n");
num_elements = g_variant_n_children(gvar_list);
for (i = 0; i < num_elements; i++) {
gvar = g_variant_get_child_value(gvar_list, i);
g_variant_get(gvar, "(tt)", &p, &q);
s = sr_voltage_string(p, q);
printf(" %s\n", s);
g_free(s);
}
g_variant_unref(gvar_list);
} else if (srci->datatype == SR_T_STRING) {
printf(" %s: ", srci->id);
if (sr_config_get(sdi->driver, sdi, channel_group, srci->key,
&gvar) == SR_OK) {
tmp_str = g_strdup(g_variant_get_string(gvar, NULL));
g_variant_unref(gvar);
} else
tmp_str = NULL;
if (sr_config_list(sdi->driver, sdi, channel_group, srci->key,
&gvar) != SR_OK) {
printf("\n");
continue;
}
stropts = g_variant_get_strv(gvar, &num_elements);
for (i = 0; i < num_elements; i++) {
if (i)
printf(", ");
printf("%s", stropts[i]);
if (tmp_str && !strcmp(tmp_str, stropts[i]))
printf(" (current)");
}
printf("\n");
g_free(stropts);
g_free(tmp_str);
g_variant_unref(gvar);
} else if (srci->datatype == SR_T_UINT64_RANGE) {
printf(" %s: ", srci->id);
if (sr_config_list(sdi->driver, sdi, channel_group, srci->key,
&gvar_list) != SR_OK) {
printf("\n");
continue;
}
if (sr_config_get(sdi->driver, sdi, NULL, srci->key, &gvar) == SR_OK) {
g_variant_get(gvar, "(tt)", &cur_low, &cur_high);
g_variant_unref(gvar);
} else {
cur_low = 0;
cur_high = 0;
}
num_elements = g_variant_n_children(gvar_list);
for (i = 0; i < num_elements; i++) {
gvar = g_variant_get_child_value(gvar_list, i);
g_variant_get(gvar, "(tt)", &low, &high);
g_variant_unref(gvar);
if (i)
printf(", ");
printf("%"PRIu64"-%"PRIu64, low, high);
if (low == cur_low && high == cur_high)
printf(" (current)");
}
printf("\n");
g_variant_unref(gvar_list);
} else if (srci->datatype == SR_T_BOOL) {
printf(" %s: ", srci->id);
if (sr_config_get(sdi->driver, sdi, NULL, srci->key,
&gvar) == SR_OK) {
if (g_variant_get_boolean(gvar))
printf("on (current), off\n");
else
printf("on, off (current)\n");
g_variant_unref(gvar);
} else
printf("on, off\n");
} else if (srci->datatype == SR_T_DOUBLE_RANGE) {
printf(" %s: ", srci->id);
if (sr_config_list(sdi->driver, sdi, channel_group, srci->key,
&gvar_list) != SR_OK) {
printf("\n");
continue;
}
if (sr_config_get(sdi->driver, sdi, NULL, srci->key, &gvar) == SR_OK) {
g_variant_get(gvar, "(dd)", &dcur_low, &dcur_high);
g_variant_unref(gvar);
} else {
dcur_low = 0;
dcur_high = 0;
}
num_elements = g_variant_n_children(gvar_list);
for (i = 0; i < num_elements; i++) {
gvar = g_variant_get_child_value(gvar_list, i);
g_variant_get(gvar, "(dd)", &dlow, &dhigh);
g_variant_unref(gvar);
if (i)
printf(", ");
printf("%.1f-%.1f", dlow, dhigh);
if (dlow == dcur_low && dhigh == dcur_high)
printf(" (current)");
}
printf("\n");
g_variant_unref(gvar_list);
} else {
/* Everything else */
printf(" %s\n", srci->id);
}
}
g_variant_unref(gvar_opts);
sr_dev_close(sdi);
g_slist_free(devices);
}
