altoslib/altosui: Carry receiver status around in AltosListenerState

This moves the crc_errors into the new structure and adds a receiver
battery voltage value there as well. Now the receiver status can be
monitored separately from the flight status. That also means that code
receiving state updates should be prepared to accept missing listener
or flight state values.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/altoslib/AltosLink.java b/altoslib/AltosLink.java
index 9eb25ce0..159ebfe1 100644
--- a/altoslib/AltosLink.java
+++ b/altoslib/AltosLink.java
@@ -364,6 +364,63 @@ public abstract class AltosLink implements Runnable {
 		remote = false;
 	}
 
+	public int rssi() throws TimeoutException, InterruptedException {
+		if (remote)
+			return 0;
+		printf("s\n");
+		String line = get_reply_no_dialog(5000);
+		if (line == null)
+			throw new TimeoutException();
+		String[] items = line.split("\\s+");
+		if (items.length < 2)
+			return 0;
+		if (!items[0].equals("RSSI:"))
+			return 0;
+		int rssi = Integer.parseInt(items[1]);
+		return rssi;
+	}
+
+	public String[] adc() throws TimeoutException, InterruptedException {
+		printf("a\n");
+		for (;;) {
+			String line = get_reply_no_dialog(5000);
+			if (line == null) {
+				throw new TimeoutException();
+			}
+			if (!line.startsWith("tick:"))
+				continue;
+			String[] items = line.split("\\s+");
+			return items;
+		}
+	}
+
+	public boolean has_monitor_battery() {
+		return config_data.has_monitor_battery();
+	}
+
+	public double monitor_battery() {
+		int monitor_batt = AltosRecord.MISSING;
+
+		if (config_data.has_monitor_battery()) {
+			try {
+			String[] items = adc();
+			for (int i = 0; i < items.length;) {
+				if (items[i].equals("batt")) {
+					monitor_batt = Integer.parseInt(items[i+1]);
+					i += 2;
+					continue;
+				}
+				i++;
+			}
+			} catch (InterruptedException ie) {
+			} catch (TimeoutException te) {
+			}
+		}
+		if (monitor_batt == AltosRecord.MISSING)
+			return AltosRecord.MISSING;
+		return AltosConvert.cc_battery_to_voltage(monitor_batt);
+	}
+
 	public AltosLink() {
 		callsign = "";
 	}