# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1502527629 0
# Node ID 80281b67511f0306370b2c6e61aae4f4147ab1f2
# Parent  b0618796d28d555b05357f6aea04ea00ffbc0f95
fc-rfcal-txband: fixed bug in the corner case when
the target power level is above the highest basis point

diff -r b0618796d28d -r 80281b67511f autocal/txlevels.c
--- a/autocal/txlevels.c	Fri Aug 11 03:20:43 2017 +0000
+++ b/autocal/txlevels.c	Sat Aug 12 08:47:09 2017 +0000
@@ -22,7 +22,7 @@
 	double target_dbm;
 	vout_t *pslope;
 {
-	vout_t target_vout;
+	vout_t target_vout, slope;
 	unsigned n;
 	int apc_delta;
 
@@ -30,9 +30,13 @@
 	for (n = 0; n < num_basis_points - 1; n++)
 		if (target_vout < tx_basis[n+1].vout)
 			break;
+	if (n == num_basis_points - 1)
+		slope = tx_basis[n-1].slope;
+	else
+		slope = tx_basis[n].slope;
 	if (pslope)
-		*pslope = tx_basis[n].slope;
-	apc_delta = (target_vout - tx_basis[n].vout) / tx_basis[n].slope;
+		*pslope = slope;
+	apc_delta = (target_vout - tx_basis[n].vout) / slope;
 	return tx_basis[n].apc + apc_delta;
 }