list<sr_dev_inst*> DeviceManager::driver_scan(
struct sr_dev_driver *const driver, GSList *const drvopts)
{
list<sr_dev_inst*> driver_devices;
assert(driver);
// Remove any device instances from this driver from the device
// list. They will not be valid after the scan.
list<sr_dev_inst*>::iterator i = _devices.begin();
while (i != _devices.end()) {
if ((*i)->driver == driver)
i = _devices.erase(i);
else
i++;
}
// Release this driver and all it's attached devices
release_driver(driver);
// Do the scan
GSList *const devices = sr_driver_scan(driver, drvopts);
for (GSList *l = devices; l; l = l->next)
driver_devices.push_back((sr_dev_inst*)l->data);
g_slist_free(devices);
driver_devices.sort(compare_devices);
// Add the scanned devices to the main list
_devices.insert(_devices.end(), driver_devices.begin(),
driver_devices.end());
_devices.sort(compare_devices);
return driver_devices;
}
GSList *device_scan(void)
{
struct sr_dev_driver **drivers, *driver;
GHashTable *drvargs;
GSList *drvopts, *devices, *tmpdevs, *l;
int i;
char *drvname;
if (opt_drv) {
drvargs = parse_generic_arg(opt_drv, TRUE);
drvname = g_strdup(g_hash_table_lookup(drvargs, "sigrok_key"));
g_hash_table_remove(drvargs, "sigrok_key");
driver = NULL;
drivers = sr_driver_list();
for (i = 0; drivers[i]; i++) {
if (strcmp(drivers[i]->name, drvname))
continue;
driver = drivers[i];
}
if (!driver) {
g_critical("Driver %s not found.", drvname);
g_hash_table_destroy(drvargs);
g_free(drvname);
return NULL;
}
g_free(drvname);
if (sr_driver_init(sr_ctx, driver) != SR_OK) {
g_critical("Failed to initialize driver.");
g_hash_table_destroy(drvargs);
return NULL;
}
drvopts = NULL;
if (g_hash_table_size(drvargs) > 0) {
if (!(drvopts = hash_to_hwopt(drvargs))) {
/* Unknown options, already logged. */
g_hash_table_destroy(drvargs);
return NULL;
}
}
g_hash_table_destroy(drvargs);
devices = sr_driver_scan(driver, drvopts);
g_slist_free_full(drvopts, (GDestroyNotify)free_drvopts);
} else {
/* No driver specified, let them all scan on their own. */
devices = NULL;
drivers = sr_driver_list();
for (i = 0; drivers[i]; i++) {
driver = drivers[i];
if (sr_driver_init(sr_ctx, driver) != SR_OK) {
g_critical("Failed to initialize driver.");
return NULL;
}
tmpdevs = sr_driver_scan(driver, NULL);
for (l = tmpdevs; l; l = l->next)
devices = g_slist_append(devices, l->data);
g_slist_free(tmpdevs);
}
}
return devices;
}