Public Access
twislaandClaude Opus 5.5
4cd6a63498
- lib/wifi (host-tested): channel occupancy (neighbour spill, signal weighting, quietest of 1/6/11) and a signal tracker (history, lost detection, click interval) - WifiService: scan results carry BSSID, channel and security; a scan can target one channel for quick tracker refreshes; endListScans() turns the radio back off when Wi-Fi is disabled - Wi-Fi Tools App: networks nearby, channel occupancy bars, signal tracker with clicks (m to mute) - M1 plan: Monitoring-mode views and captures deferred Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EhqxQ49eCju4CzKYNjZzwT
36 lines
947 B
C++
36 lines
947 B
C++
#include "channel_occupancy.h"
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namespace roro {
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namespace {
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// -90 dBm (barely there) -> 0.1, -40 dBm and stronger -> 1.
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float weight(int rssi) {
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float w = (rssi + 90) / 50.0f;
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if (w < 0.1f) w = 0.1f;
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if (w > 1.0f) w = 1.0f;
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return w;
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}
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const float kSpill[] = {1.0f, 0.5f, 0.2f}; // same channel, one away, two away
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} // namespace
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std::array<float, 14> channelLoad(const std::vector<ChannelSighting>& sightings) {
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std::array<float, 14> load{};
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for (auto& s : sightings) {
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if (s.channel < 1 || s.channel > 13) continue;
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for (int d = -2; d <= 2; d++) {
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int ch = s.channel + d;
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if (ch >= 1 && ch <= 13) load[ch] += weight(s.rssi) * kSpill[d < 0 ? -d : d];
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}
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}
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return load;
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}
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int quietestChannel(const std::array<float, 14>& load) {
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int best = 1;
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for (int ch : {6, 11})
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if (load[ch] < load[best]) best = ch;
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return best;
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}
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} // namespace roro
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