From 0faa18eab996c2cfcc5da0b60b702f52335c5854 Mon Sep 17 00:00:00 2001
From: Jack Humbert <jack.humb@gmail.com>
Date: Fri, 15 Apr 2016 23:38:21 -0400
Subject: audio enable stored in eeprom

---
 quantum/audio.c | 48 +++++++++++++++++++++++++++++++++++++++++++++++-
 quantum/audio.h | 14 +++++++++++++-
 2 files changed, 60 insertions(+), 2 deletions(-)

(limited to 'quantum')

diff --git a/quantum/audio.c b/quantum/audio.c
index 50e5505fe0..73985479cc 100644
--- a/quantum/audio.c
+++ b/quantum/audio.c
@@ -8,6 +8,8 @@
 #include "audio.h"
 #include "keymap_common.h"
 
+#include "eeconfig.h"
+
 #define PI 3.14159265
 
 // #define PWM_AUDIO
@@ -57,6 +59,25 @@ uint8_t notes_length;
 bool notes_repeat;
 uint8_t current_note = 0;
 
+audio_config_t audio_config;
+
+
+void audio_toggle(void) {
+    audio_config.enable ^= 1;
+    eeconfig_write_audio(audio_config.raw);
+}
+
+void audio_on(void) {
+    audio_config.enable = 1;
+    eeconfig_write_audio(audio_config.raw);
+}
+
+void audio_off(void) {
+    audio_config.enable = 0;
+    eeconfig_write_audio(audio_config.raw);
+}
+
+
 void stop_all_notes() {
     voices = 0;
     #ifdef PWM_AUDIO
@@ -129,6 +150,12 @@ void stop_note(double freq) {
 
 void init_notes() {
 
+    /* check signature */
+    if (!eeconfig_is_enabled()) {
+        eeconfig_init();
+    }
+    audio_config.raw = eeconfig_read_audio();
+
     #ifdef PWM_AUDIO
         PLLFRQ = _BV(PDIV2);
         PLLCSR = _BV(PLLE);
@@ -160,7 +187,6 @@ void init_notes() {
 
 
 ISR(TIMER3_COMPA_vect) {
-
     if (note) {
         #ifdef PWM_AUDIO
             if (voices == 1) {
@@ -288,9 +314,16 @@ ISR(TIMER3_COMPA_vect) {
 
     }
 
+    if (!audio_config.enable) {
+        notes = false;
+        note = false;
+    }
 }
 
 void play_notes(float (*np)[][2], uint8_t n_length, bool n_repeat) {
+
+if (audio_config.enable) {
+
     if (note)
         stop_all_notes();
     notes = true;
@@ -319,7 +352,12 @@ void play_notes(float (*np)[][2], uint8_t n_length, bool n_repeat) {
     #endif
 }
 
+}
+
 void play_sample(uint8_t * s, uint16_t l, bool r) {
+
+if (audio_config.enable) {
+
     stop_all_notes();
     place_int = 0;
     sample = s;
@@ -330,9 +368,15 @@ void play_sample(uint8_t * s, uint16_t l, bool r) {
         TIMSK3 |= _BV(OCIE3A);
     #else
     #endif
+
+}
+
 }
 
 void play_note(double freq, int vol) {
+
+if (audio_config.enable) {
+
     if (notes)
         stop_all_notes();
     note = true;
@@ -367,4 +411,6 @@ void play_note(double freq, int vol) {
         TCCR3A |= _BV(COM3A1);
     #endif
 
+}
+
 }
\ No newline at end of file
diff --git a/quantum/audio.h b/quantum/audio.h
index 99203cea7a..58270015df 100644
--- a/quantum/audio.h
+++ b/quantum/audio.h
@@ -3,9 +3,21 @@
 #include <avr/io.h>
 #include <util/delay.h>
 
+typedef union {
+    uint8_t raw;
+    struct {
+        bool    enable :1;
+        uint8_t level  :7;
+    };
+} audio_config_t;
+
+void audio_toggle(void);
+void audio_on(void);
+void audio_off(void);
+
 void play_sample(uint8_t * s, uint16_t l, bool r);
 void play_note(double freq, int vol);
 void stop_note(double freq);
 void stop_all_notes();
 void init_notes();
-void play_notes(float (*np)[][2], uint8_t n_length, bool n_repeat);
\ No newline at end of file
+void play_notes(float (*np)[][2], uint8_t n_length, bool n_repeat);
-- 
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