Add preamp setting display, toggle

README.md

@@ -86,7 +86,8 @@ is up) with the following info:
 
 - First status bar line:
   - `state`: RX/TX/TUNE depending on the PTT status
-  - `freq`: operating frequency in MHz, mode (LSB/USB/FM...), active filter
+  - `freq`: operating frequency in MHz, mode (LSB/USB/FM...), active filter,
+    preamp (PAMP0 means the preamp is off)
   - `txpwr`: current transmit power setting in percent
   - `audiomon`: current status of the audio monitor (see the *Hotkeys* section
     in this README for more information about this feature)
@@ -140,6 +141,7 @@ Some basic CAT control hotkeys are also supported:
 - `d`, `f`: cycles through filters
 - `D`: toggles data mode
 - `v`, `b`: cycles through bands
+- `p`: toggle preamp
 
 ## Icom IC-705 Wi-Fi notes
 

civcontrol.go

@@ -73,6 +73,7 @@ type civControlStruct struct {
 		dataMode         bool
 		bandIdx          int
 		bandChanging     bool
+		preamp           int
 	}
 }
 
@@ -100,6 +101,8 @@ func (s *civControlStruct) decode(d []byte) {
 		s.decodePower(payload)
 	case 0x1c:
 		s.decodeTransmitStatus(payload)
+	case 0x16:
+		s.decodePreamp(payload)
 	}
 }
 
@@ -221,6 +224,18 @@ func (s *civControlStruct) decodeTransmitStatus(d []byte) {
 	statusLog.reportPTT(s.state.ptt, s.state.tune)
 }
 
+func (s *civControlStruct) decodePreamp(d []byte) {
+	if len(d) < 2 {
+		return
+	}
+
+	switch d[0] {
+	case 0x02:
+		s.state.preamp = int(d[1])
+		statusLog.reportPreamp(s.state.preamp)
+	}
+}
+
 func (s *civControlStruct) setPwr(percent int) error {
 	v := uint16(0x0255 * (float64(percent) / 100))
 	return s.st.send([]byte{254, 254, civAddress, 224, 0x14, 0x0a, byte(v >> 8), byte(v & 0xff), 253})
@@ -385,6 +400,14 @@ func (s *civControlStruct) decBand() error {
 	return s.setFreq(f)
 }
 
+func (s *civControlStruct) togglePreamp() error {
+	b := byte(s.state.preamp + 1)
+	if b > 2 {
+		b = 0
+	}
+	return s.st.send([]byte{254, 254, civAddress, 224, 0x16, 0x02, b, 253})
+}
+
 func (s *civControlStruct) getFreq() error {
 	return s.st.send([]byte{254, 254, civAddress, 224, 3, 253})
 }
@@ -423,5 +446,9 @@ func (s *civControlStruct) init(st *serialStream) error {
 	if err := s.getTransmitStatus(); err != nil {
 		return err
 	}
+	// Querying preamp.
+	if err := s.st.send([]byte{254, 254, civAddress, 224, 0x16, 0x02, 253}); err != nil {
+		return err
+	}
 	return nil
 }

keyboard-linux.go

@@ -150,6 +150,12 @@ func (s *keyboardStruct) handleKey(k byte) {
 				log.Error("can't change band: ", err)
 			}
 		}
+	case 'p':
+		if civControl != nil {
+			if err := civControl.togglePreamp(); err != nil {
+				log.Error("can't change preamp: ", err)
+			}
+		}
 	case 'q':
 		quitChan <- true
 	}

statuslog.go

@@ -19,6 +19,7 @@ type statusLogData struct {
 	mode       string
 	dataMode   string
 	filter     string
+	preamp     string
 	txPowerStr string
 
 	startTime time.Time
@@ -133,6 +134,16 @@ func (s *statusLogStruct) reportDataMode(dataMode, filter string) {
 	}
 }
 
+func (s *statusLogStruct) reportPreamp(preamp int) {
+	s.mutex.Lock()
+	defer s.mutex.Unlock()
+
+	if s.data == nil {
+		return
+	}
+	s.data.preamp = fmt.Sprint("PAMP", preamp)
+}
+
 func (s *statusLogStruct) reportPTT(ptt, tune bool) {
 	s.mutex.Lock()
 	defer s.mutex.Unlock()
@@ -199,12 +210,16 @@ func (s *statusLogStruct) update() {
 	if s.data.filter != "" {
 		filterStr = " " + s.data.filter
 	}
+	var preampStr string
+	if s.data.preamp != "" {
+		preampStr = " " + s.data.preamp
+	}
 	var txPowerStr string
 	if s.data.txPowerStr != "" {
 		txPowerStr = " txpwr " + s.data.txPowerStr
 	}
 	s.data.line1 = fmt.Sprint("state ", s.data.stateStr, " freq: ", fmt.Sprintf("%.6f", float64(s.data.frequency)/1000000),
-		modeStr, filterStr, txPowerStr, " audio ", s.data.audioStateStr)
+		modeStr, filterStr, preampStr, txPowerStr, " audio ", s.data.audioStateStr)
 
 	up, down, lost, retransmits := netstat.get()
 	lostStr := "0"