altos: Start restructuring APRS code to create and send packets

[fw/altos] / src / test / ao_aprs_test.c

diff --git a/src/test/ao_aprs_test.c b/src/test/ao_aprs_test.c
index 93dab577b05fe774e09d68e41eba811e5894ed5b..d350ca0d54772bbaf30da54db3c12c3ab7aeeeb5 100644 (file)
--- a/src/test/ao_aprs_test.c
+++ b/src/test/ao_aprs_test.c
@@ -25,6 +25,27 @@
 
 #define AO_APRS_TEST
 
+typedef int16_t (*ao_radio_fill_func)(uint8_t *buffer, int16_t len);
+
+#define DEBUG 0
+#if DEBUG
+void
+ao_aprs_bit(uint8_t bit)
+{
+       static int      seq = 0;
+       printf ("%6d %d\n", seq++, bit ? 1 : 0);
+}
+#else
+void
+ao_aprs_bit(uint8_t bit)
+{
+       putchar (bit ? 0xc0 : 0x40);
+}
+#endif
+
+void
+ao_radio_send_lots(ao_radio_fill_func fill);
+
 #include <ao_aprs.c>
 
 /*
@@ -57,10 +78,12 @@
 static void
 audio_gap(int secs)
 {
+#if !DEBUG
        int     samples = secs * 9600;
 
        while (samples--)
-               putchar(0x7f);
+               ao_aprs_bit(0);
+#endif
 }
 
 // This is where we go after reset.
@@ -76,6 +99,27 @@ int main(int argc, char **argv)
     exit(0);
 }
 
-
-
-
+void
+ao_radio_send_lots(ao_radio_fill_func fill)
+{
+       int16_t len;
+       uint8_t done = 0;
+       uint8_t buf[16], *b, c;
+       uint8_t bit;
+
+       while (!done) {
+               len = (*fill)(buf, sizeof (buf));
+               if (len < 0) {
+                       done = 1;
+                       len = -len;
+               }
+               b = buf;
+               while (len--) {
+                       c = *b++;
+                       for (bit = 0; bit < 8; bit++) {
+                               ao_aprs_bit(c & 0x80);
+                               c <<= 1;
+                       }
+               }
+       }
+}