Input: gamecon - simplify coordinate calculation for PSX
authorDmitry Torokhov <dmitry.torokhov@gmail.com>
Mon, 22 Feb 2010 04:54:31 +0000 (20:54 -0800)
committerDmitry Torokhov <dmitry.torokhov@gmail.com>
Mon, 22 Feb 2010 06:09:55 +0000 (22:09 -0800)
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
drivers/input/joystick/gamecon.c

index ec01bea8dc81e423603aed09e0e85830ced69cf3..d57edd4a5992995b31d49f0759e12f8daa333e5a 100644 (file)
@@ -630,8 +630,10 @@ static void gc_psx_report_one(struct gc *gc, struct input_dev *dev,
                                input_report_abs(dev, gc_psx_abs[i + 2],
                                                 data[i + 2]);
 
-                       input_report_abs(dev, ABS_X, 128 + !(data[0] & 0x20) * 127 - !(data[0] & 0x80) * 128);
-                       input_report_abs(dev, ABS_Y, 128 + !(data[0] & 0x40) * 127 - !(data[0] & 0x10) * 128);
+                       input_report_abs(dev, ABS_X,
+                               !!(data[0] & 0x80) * 128 + !(data[0] & 0x20) * 127);
+                       input_report_abs(dev, ABS_Y,
+                               !!(data[0] & 0x10) * 128 + !(data[0] & 0x40) * 127);
                }
 
                for (i = 0; i < 8; i++)
@@ -650,8 +652,10 @@ static void gc_psx_report_one(struct gc *gc, struct input_dev *dev,
                                input_report_key(dev, gc_psx_ddr_btn[i],
                                                 ~data[0] & (0x10 << i));
                } else {
-                       input_report_abs(dev, ABS_X, 128 + !(data[0] & 0x20) * 127 - !(data[0] & 0x80) * 128);
-                       input_report_abs(dev, ABS_Y, 128 + !(data[0] & 0x40) * 127 - !(data[0] & 0x10) * 128);
+                       input_report_abs(dev, ABS_X,
+                               !!(data[0] & 0x80) * 128 + !(data[0] & 0x20) * 127);
+                       input_report_abs(dev, ABS_Y,
+                               !!(data[0] & 0x10) * 128 + !(data[0] & 0x40) * 127);
 
                        /*
                         * For some reason if the extra axes are left unset