From bab9849a8bc799f43e4dc18674c07625630cab0d Mon Sep 17 00:00:00 2001
From: Drashna Jaelre <drashna@live.com>
Date: Wed, 27 Jan 2021 09:33:52 -0800
Subject: [PATCH] Backport ChibiOS Audio changes from ZSA (#11687)

---
 quantum/audio/audio_chibios.c | 18 +++++++++++++-----
 quantum/audio/musical_notes.h |  9 ++++++---
 2 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/quantum/audio/audio_chibios.c b/quantum/audio/audio_chibios.c
index 1f147f2c92..1863ae140b 100644
--- a/quantum/audio/audio_chibios.c
+++ b/quantum/audio/audio_chibios.c
@@ -86,13 +86,21 @@ static void gpt_cb8(GPTDriver *gptp);
 
 #define START_CHANNEL_1()        \
     gptStart(&GPTD6, &gpt6cfg1); \
-    gptStartContinuous(&GPTD6, 2U)
+    gptStartContinuous(&GPTD6, 2U); \
+    palSetPadMode(GPIOA, 4, PAL_MODE_INPUT_ANALOG)
 #define START_CHANNEL_2()        \
     gptStart(&GPTD7, &gpt7cfg1); \
-    gptStartContinuous(&GPTD7, 2U)
-#define STOP_CHANNEL_1() gptStopTimer(&GPTD6)
-#define STOP_CHANNEL_2() gptStopTimer(&GPTD7)
-#define RESTART_CHANNEL_1() \
+    gptStartContinuous(&GPTD7, 2U); \
+    palSetPadMode(GPIOA, 5, PAL_MODE_INPUT_ANALOG)
+#define STOP_CHANNEL_1()          \
+    gptStopTimer(&GPTD6);         \
+    palSetPadMode(GPIOA, 4, PAL_MODE_OUTPUT_PUSHPULL); \
+    palSetPad(GPIOA, 4)
+#define STOP_CHANNEL_2()         \
+    gptStopTimer(&GPTD7);        \
+    palSetPadMode(GPIOA, 5, PAL_MODE_OUTPUT_PUSHPULL); \
+    palSetPad(GPIOA, 5)
+    #define RESTART_CHANNEL_1() \
     STOP_CHANNEL_1();       \
     START_CHANNEL_1()
 #define RESTART_CHANNEL_2() \
diff --git a/quantum/audio/musical_notes.h b/quantum/audio/musical_notes.h
index 8ac6aafd38..0ba572c346 100644
--- a/quantum/audio/musical_notes.h
+++ b/quantum/audio/musical_notes.h
@@ -17,7 +17,9 @@
 #pragma once
 
 // Tempo Placeholder
-#define TEMPO_DEFAULT 100
+#ifndef TEMPO_DEFAULT
+#    define TEMPO_DEFAULT 100
+#endif
 
 #define SONG(notes...) \
     { notes }
@@ -60,8 +62,9 @@
 #define TIMBRE_25 0.250f
 #define TIMBRE_50 0.500f
 #define TIMBRE_75 0.750f
-#define TIMBRE_DEFAULT TIMBRE_50
-
+#ifndef TIMBRE_DEFAULT
+#    define TIMBRE_DEFAULT TIMBRE_50
+#endif
 // Notes - # = Octave
 
 #ifdef __arm__