rouggy
9bd6d988aa
Configure (message 15), mode field only, every other field sent as no-change: an FT4 spot clicked while WSJT-X sits in FT8 lands the operator ready to decode instead of staring at gibberish. Sent to every instance heard this session — one already in the right mode treats it as a no-op — and only for modes the decoder actually speaks (FT8/FT4/JT65/JT9/MSK144/ Q65/FST4); CW and SSB are none of its business. Toggle in the Connections panel, on by default.
48 lines
2.1 KiB
Go
48 lines
2.1 KiB
Go
package udp
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import (
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"bytes"
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"encoding/binary"
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"hamlog/internal/applog"
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)
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// WSJT-X Configure (message 15) — change the decoder's settings remotely. Used
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// for ONE thing here: clicking an FT4 spot while the decoder sits in FT8
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// switches its mode too, so the operator lands ready to decode instead of
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// staring at a band of gibberish. Every other field is sent as "no change"
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// (empty strings, max-quint32), per the protocol.
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const wsjtMsgConfigure = 15
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// EncodeConfigureMode builds a Configure datagram that changes only the mode.
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func EncodeConfigureMode(programID, mode string) []byte {
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const noChange32 = ^uint32(0)
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var b bytes.Buffer
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_ = binary.Write(&b, binary.BigEndian, uint32(wsjtMagic))
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_ = binary.Write(&b, binary.BigEndian, uint32(2))
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_ = binary.Write(&b, binary.BigEndian, uint32(wsjtMsgConfigure))
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writeQString(&b, programID)
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writeQString(&b, mode) // Mode
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_ = binary.Write(&b, binary.BigEndian, noChange32) // Frequency Tolerance — no change
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writeQString(&b, "") // Submode — no change
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_ = binary.Write(&b, binary.BigEndian, uint8(0)) // Fast Mode — off (right for every HF mode)
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_ = binary.Write(&b, binary.BigEndian, noChange32) // T/R Period — no change
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_ = binary.Write(&b, binary.BigEndian, noChange32) // Rx DF — no change
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writeQString(&b, "") // DX Call — no change
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writeQString(&b, "") // DX Grid — no change
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_ = binary.Write(&b, binary.BigEndian, uint8(0)) // Generate Messages — no
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return b.Bytes()
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}
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// SendConfigureMode asks every decoder heard this session to switch mode.
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// Sent to all instances rather than one: the spot click does not say which
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// decoder the operator is looking at, and a second instance already in the
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// right mode treats the message as a no-op.
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func (m *Manager) SendConfigureMode(mode string) {
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for _, inst := range m.Instances() {
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if err := m.sendToInstance(inst, EncodeConfigureMode(inst, mode), "configure-mode"); err == nil {
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applog.Printf("udp: asked %q to switch to %s", inst, mode)
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}
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}
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}
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