altos: Use configured callsign in APRS packets

Instead of hard-coding my own call sign...

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

diff --git a/src/drivers/ao_aprs.c b/src/drivers/ao_aprs.c
index e273908f50e513b956096a602b4c2630e8339607..e3abe52eff9758eb0e6984d5a7888591c3a38d16 100644 (file)
--- a/src/drivers/ao_aprs.c
+++ b/src/drivers/ao_aprs.c
@@ -253,12 +253,30 @@ typedef enum
 
 /// AX.25 compliant packet header that contains destination, station call sign, and path.
 /// 0x76 for SSID-11, 0x78 for SSID-12
-static const uint8_t TNC_AX25_HEADER[] = { 
+static uint8_t TNC_AX25_HEADER[] = { 
     'A' << 1, 'P' << 1, 'A' << 1, 'M' << 1, ' ' << 1, ' ' << 1, 0x60, \
-    'K' << 1, 'D' << 1, '7' << 1, 'S' << 1, 'Q' << 1, 'G' << 1, 0x78, \
+    'N' << 1, '0' << 1, 'C' << 1, 'A' << 1, 'L' << 1, 'L' << 1, 0x78, \
     'W' << 1, 'I' << 1, 'D' << 1, 'E' << 1, '2' << 1, ' ' << 1, 0x65, \
     0x03, 0xf0 };
 
+#define TNC_CALLSIGN_OFF       7
+#define TNC_CALLSIGN_LEN       6
+
+static void
+tncSetCallsign(void)
+{
+       uint8_t i;
+
+       for (i = 0; i < TNC_CALLSIGN_LEN; i++) {
+               if (!ao_config.callsign[i])
+                       break;
+               TNC_AX25_HEADER[TNC_CALLSIGN_OFF + i] = ao_config.callsign[i] << 1;
+       }
+       for (; i < TNC_CALLSIGN_LEN; i++)
+               TNC_AX25_HEADER[TNC_CALLSIGN_OFF + i] = ' ' << 1;
+               
+}
+
 /// The next bit to transmit.
 static uint8_t tncTxBit;
 
@@ -547,6 +565,7 @@ void ao_aprs_send(void)
 
     timeInit();
     tncInit();
+    tncSetCallsign();
 
     tncLength = tncPositionPacket();