From d722b3d1732a7ee7156b486aecb3c2b82eed3258 Mon Sep 17 00:00:00 2001
From: Eric Tang <e_l_tang@outlook.com>
Date: Thu, 5 Jul 2018 14:41:19 -0700
Subject: [PATCH] Make debounce times configurable on the fly

---
 right/src/usb_report_updater.c | 4 ++--
 shared/key_matrix.c            | 2 ++
 shared/key_matrix.h            | 5 ++++-
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/right/src/usb_report_updater.c b/right/src/usb_report_updater.c
index d2f1c1d..5ebc64f 100644
--- a/right/src/usb_report_updater.c
+++ b/right/src/usb_report_updater.c
@@ -350,12 +350,12 @@ static void updateActiveUsbReports(void)
             key_action_t *action = &CurrentKeymap[activeLayer][slotId][keyId];
 
             if (keyState->debouncing) {
-                if ((uint8_t)(Timer_GetCurrentTime() - keyState->timestamp) > KEY_BOUNCE_TIME_MSEC) {
+                if ((uint8_t)(Timer_GetCurrentTime() - keyState->timestamp) > (keyState->previous ? DebounceTimePress : DebounceTimeRelease)) {
                     keyState->debouncing = false;
                 } else {
                     keyState->current = keyState->previous;
                 }
-            } else if (!keyState->previous && keyState->current) {
+            } else if (keyState->previous != keyState->current) {
                 keyState->timestamp = Timer_GetCurrentTime();
                 keyState->debouncing = true;
             }
diff --git a/shared/key_matrix.c b/shared/key_matrix.c
index e59673a..e8fb941 100644
--- a/shared/key_matrix.c
+++ b/shared/key_matrix.c
@@ -1,6 +1,8 @@
 #include "fsl_gpio.h"
 #include "key_matrix.h"
 
+uint8_t DebounceTimePress = 100, DebounceTimeRelease = 0;
+
 void KeyMatrix_Init(key_matrix_t *keyMatrix)
 {
     for (key_matrix_pin_t *row = keyMatrix->rows; row < keyMatrix->rows + keyMatrix->rowNum; row++) {
diff --git a/shared/key_matrix.h b/shared/key_matrix.h
index abe221b..f4311d0 100644
--- a/shared/key_matrix.h
+++ b/shared/key_matrix.h
@@ -9,7 +9,6 @@
 // Macros:
 
     #define MAX_KEYS_IN_MATRIX 100
-    #define KEY_BOUNCE_TIME_MSEC 100
 
 // Typedefs:
 
@@ -29,6 +28,10 @@
         uint8_t keyStates[MAX_KEYS_IN_MATRIX];
     } key_matrix_t;
 
+// Variables:
+
+    extern uint8_t DebounceTimePress, DebounceTimeRelease;
+
 // Functions:
 
     void KeyMatrix_Init(key_matrix_t *keyMatrix);