From 78120acf62bd31d8dfdbdc072cf595d684fab08f Mon Sep 17 00:00:00 2001
From: Ian Jackson <ian@liberator.relativity.greenend.org.uk>
Date: Sun, 13 Feb 2011 01:20:16 +0000
Subject: [PATCH] hostside: hidrawconv: always report joysticks as doubles
 -1..+1; disable dpad, as we don't support that properly atm

---
 hostside/hidrawconv-joytechneos.c | 6 +++---
 hostside/hidrawconv.c             | 6 +++++-
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/hostside/hidrawconv-joytechneos.c b/hostside/hidrawconv-joytechneos.c
index 6b39458..5ad96fe 100644
--- a/hostside/hidrawconv-joytechneos.c
+++ b/hostside/hidrawconv-joytechneos.c
@@ -16,11 +16,11 @@ static const KeyBit keybits[]= {
   { 0 }
 };
 static const ValLoc vallocs[]= {
-  { "EV_ABS ABS_X",          1,0,-1, 0xff, 0x7f },
+  { "EV_ABS ABS_X",          1,0,-1, 0xff, 0x80 },
   { "EV_ABS ABS_Y",          2,0,-1, 0xff, 0x80 },
-  { "EV_ABS ABS_RUDDER",     3,0,+1, 0xff, 0x7f },
+  { "EV_ABS ABS_RUDDER",     3,0,+1, 0xff, 0x80 },
   { "EV_ABS ABS_THROTTLE",   4,0,-1, 0xff, 0x80 },
-  { "EV_ABS DPAD",           5,0,+1, 0x0f, 0x00 },
+//  { "EV_ABS DPAD",           5,0,+1, 0x0f, 0x00 },
   { 0 }
 };
 
diff --git a/hostside/hidrawconv.c b/hostside/hidrawconv.c
index 738a153..134fabd 100644
--- a/hostside/hidrawconv.c
+++ b/hostside/hidrawconv.c
@@ -8,6 +8,8 @@
  * exit status:
  *   0      all ok
  *   other  some other problem
+ *
+ * joystick values are always doubles from -1 to 0 to +1
  */
 
 #include "hidrawconv.h"
@@ -38,7 +40,9 @@ void reportlocs(const uint8_t msg[], const uint8_t last[],
     if (mb==lb) continue;
     mb >>= loc->rshift;
     mb -= loc->zero;
-    printf("%s %d\n", loc->str, loc->sign * (int8_t)mb);
+    double val= (int8_t)mb;
+    val /= (val >= 0 ? 127 : 128);
+    printf("%s %.5f\n", loc->str, loc->sign * val);
   }
 }
   
-- 
2.30.2