altos: Check for full log and complain

Reports special tone along with the continuity checks.
Reports flight 0 in telemetry.

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

1 files changed, 6 insertions, 0 deletions

diff --git a/src/ao_log.c b/src/ao_log.c
index 55b9dfff..ba019992 100644
--- a/src/ao_log.c
+++ b/src/ao_log.c
@@ -315,6 +315,12 @@ ao_log_present(void)
 	return ao_log_max_flight() != 0;
 }
 
+uint8_t
+ao_log_full(void)
+{
+	return ao_log_current_pos == ao_log_end_pos;
+}
+
 static __xdata struct ao_task ao_log_task;
 
 void