1 files changed, 12 insertions, 0 deletions
diff --git a/input.h b/input.h
index 90fc930..72c7e1e 100644
--- a/input.h
+++ b/input.h
@@ -61,6 +61,18 @@ extern bool libretro_supports_ff_override;
 extern bool libretro_ff_enabled;
 extern bool libretro_ff_enabled_prev;
 
+/* Minimum (and default) turbo pulse train
+ * is 2 frames ON, 2 frames OFF */
+#define TURBO_PERIOD_MIN      4
+#define TURBO_PERIOD_MAX      120
+#define TURBO_PULSE_WIDTH_MIN 2
+#define TURBO_PULSE_WIDTH_MAX 15
+
+extern unsigned turbo_period;
+extern unsigned turbo_pulse_width;
+extern unsigned turbo_a_counter;
+extern unsigned turbo_b_counter;
+
 void init_input(void);
 u32 update_input(void);
 void input_write_savestate(void);