From 70c65a3fbae4b84859977ee40177b67f65f745cd Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Mon, 15 Dec 2014 08:14:47 +0100
Subject: [PATCH] linuxdvb rotor: another fix for last orbital position
 caching, code shuffle

---
 src/input/mpegts/linuxdvb/linuxdvb_rotor.c | 55 +++++++++++++---------
 1 file changed, 34 insertions(+), 21 deletions(-)

diff --git a/src/input/mpegts/linuxdvb/linuxdvb_rotor.c b/src/input/mpegts/linuxdvb/linuxdvb_rotor.c
index 19948a61..2fda6ee1 100644
--- a/src/input/mpegts/linuxdvb/linuxdvb_rotor.c
+++ b/src/input/mpegts/linuxdvb/linuxdvb_rotor.c
@@ -131,6 +131,37 @@ const idclass_t linuxdvb_rotor_usals_class =
   }
 };
 
+/*
+ *
+ */
+
+static inline
+int pos_to_integer( double pos )
+{
+  if (pos < 0)
+    return (pos - 0.05) * 10;
+  else
+    return (pos + 0.05) * 10;
+}
+
+static inline
+double to_radians( double val )
+{
+  return ((val * M_PI) / 180.0);
+}
+
+static inline
+double to_degrees( double val )
+{
+  return ((val * 180.0) / M_PI);
+}
+
+static inline
+double to_rev( double val )
+{
+  return val - floor(val / 360.0) * 360;
+}
+
 /* **************************************************************************
  * Class methods
  * *************************************************************************/
@@ -146,7 +177,7 @@ linuxdvb_rotor_grace
   if (!ls->ls_last_orbital_pos || lr->lr_rate == 0)
     return ls->ls_max_rotor_move;
 
-  newpos = (lr->lr_sat_lon + 0.05) * 10;
+  newpos = pos_to_integer(lr->lr_sat_lon);
   if (idnode_is_instance(&lr->ld_id, &linuxdvb_rotor_gotox_class)) {
     tunit  = 1000;  /* GOTOX */
   } else {
@@ -174,7 +205,7 @@ linuxdvb_rotor_check_orbital_pos
   if (!pos)
     return 0;
 
-  if (abs((int)((lr->lr_sat_lon + 0.05) * 10) - pos) > 2)
+  if (abs(pos_to_integer(lr->lr_sat_lon) - pos) > 2)
     return 0;
 
   dir = 'E';
@@ -207,24 +238,6 @@ linuxdvb_rotor_gotox_tune
   return linuxdvb_rotor_grace((linuxdvb_diseqc_t*)lr,lm);
 }
 
-static inline
-double to_radians( double val )
-{
-  return ((val * M_PI) / 180.0);
-}
-
-static inline
-double to_degrees( double val )
-{
-  return ((val * 180.0) / M_PI);
-}
-
-static inline
-double to_rev( double val )
-{
-  return val - floor(val / 360.0) * 360;
-}
-
 static
 void usals_sat_azimuth_and_elevation
   ( double site_lat, double site_lon, double site_alt, double sat_lon,
@@ -399,7 +412,7 @@ linuxdvb_rotor_post
 {
   linuxdvb_rotor_t *lr = (linuxdvb_rotor_t*)ld;
 
-  ls->lse_parent->ls_last_orbital_pos = lr->lr_sat_lon;
+  ls->lse_parent->ls_last_orbital_pos = pos_to_integer(lr->lr_sat_lon);
   return 0;
 }