Input: gamecon - simplify coordinate calculation for PSX

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/joystick/gamecon.c b/drivers/input/joystick/gamecon.c
index ec01bea..d57edd4 100644 (file)
--- a/drivers/input/joystick/gamecon.c
+++ b/drivers/input/joystick/gamecon.c
@@ -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