Audio enable corrections (Part 4) (qmk#8974)

* audio-configuration: throw a compile error on AUDIO_ENABLE=yes with no output pin configured relevant for avr boards, arm currently implicitly uses A4/A5 * audio-configuration: add Changelog entry * audio-configuration: remove stray newline
noroadsleft · May 28, 2020 · 0a5c9ae · 0a5c9ae
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diff --git a/docs/ChangeLog/20200530/PR8974.md b/docs/ChangeLog/20200530/PR8974.md
@@ -0,0 +1,2 @@
+## fixing wrong configuration of AUDIO feature
+add a compile-time error to alert the user to a missing pin-configuration (on AVR boards) when AUDIO_ENABLE=yes is set
diff --git a/quantum/audio/audio_avr.c b/quantum/audio/audio_avr.c
@@ -110,6 +110,11 @@
 #    define TIMER_1_DUTY_CYCLE OCR1C
 #    define TIMER1_AUDIO_vect TIMER1_COMPC_vect
 #endif
+
+#if !defined(BPIN_AUDIO) && !defined(CPIN_AUDIO)
+#    error "Audio feature enabled, but no suitable pin selected - see docs/feature_audio.md under the AVR settings for available options."
+#endif
+
 // -----------------------------------------------------------------------------
 
 int   voices        = 0;