| 1334 | } |
| 1335 | |
| 1336 | void WBLink::perform_channel_scan( |
| 1337 | const openhd::LinkActionHandler::ScanChannelsParam& scan_channels_params) { |
| 1338 | const WiFiCard& card = m_broadcast_cards.at(0); |
| 1339 | const auto channels_to_scan = openhd::wb::get_scan_channels_frequencies( |
| 1340 | card, scan_channels_params.channels_to_scan); |
| 1341 | if (channels_to_scan.empty()) { |
| 1342 | m_console->warn("No channels to scan, return early"); |
| 1343 | return; |
| 1344 | } |
| 1345 | // const auto channel_widths_to_scan= |
| 1346 | // openhd::wb::get_scan_channels_bandwidths(scan_channels_params.check_20Mhz_channel_width_if_card_supports, |
| 1347 | // scan_channels_params.check_40Mhz_channel_width_if_card_supports); |
| 1348 | // if(channel_widths_to_scan.empty()){ |
| 1349 | // m_console->warn("No channel_widths to scan, return early"); |
| 1350 | // return; |
| 1351 | // } |
| 1352 | // We only scan 40Mhz, this way we get both 20Mhz and 40Mhz air unit(s) |
| 1353 | const std::vector<uint16_t> channel_widths_to_scan = {40}; |
| 1354 | |
| 1355 | auto stats_current = openhd::LinkActionHandler::instance().get_link_stats(); |
| 1356 | stats_current.gnd_operating_mode.operating_mode = 1; |
| 1357 | openhd::LinkActionHandler::instance().update_link_stats(stats_current); |
| 1358 | |
| 1359 | struct ScanResult { |
| 1360 | bool success = false; |
| 1361 | int frequency = 0; |
| 1362 | int channel_width = 0; |
| 1363 | }; |
| 1364 | ScanResult result{false, 0, 0}; |
| 1365 | // Note: We intentionally do not modify the persistent settings here |
| 1366 | m_console->debug( |
| 1367 | "Channel scan N channels to scan:{} N channel widths to scan:{}", |
| 1368 | channels_to_scan.size(), channel_widths_to_scan.size()); |
| 1369 | bool done_early = false; |
| 1370 | // We need to loop through all possible channels |
| 1371 | for (int i = 0; i < channels_to_scan.size(); i++) { |
| 1372 | const auto& channel = channels_to_scan[i]; |
| 1373 | if (done_early) break; |
| 1374 | // and all possible channel widths (20 or 40Mhz only right now) |
| 1375 | for (const auto& channel_width : channel_widths_to_scan) { |
| 1376 | // Return early in some cases (e.g. when we have a low loss and are quite |
| 1377 | // certain about a frequency) |
| 1378 | if (done_early) break; |
| 1379 | // Skip channels / frequencies the card doesn't support anyways |
| 1380 | if (!openhd::wb::any_card_support_frequency( |
| 1381 | channel.frequency, m_broadcast_cards, m_console)) { |
| 1382 | continue; |
| 1383 | } |
| 1384 | // set new frequency, reset the packet count, sleep, then check if any |
| 1385 | // openhd packets have been received |
| 1386 | const bool freq_success = apply_frequency_and_channel_width( |
| 1387 | channel.frequency, channel_width, 20); |
| 1388 | if (!freq_success) { |
| 1389 | m_console->warn("Cannot scan [{}] {}Mhz@{}Mhz", channel.channel, |
| 1390 | channel.frequency, channel_width); |
| 1391 | continue; |
| 1392 | } |
| 1393 | openhd::LinkActionHandler::ScanChannelsProgress tmp{}; |
nothing calls this directly
no test coverage detected