add getSeconds, sound controller, mute/unmute switches

game-ctrl/sound.c

@@ -0,0 +1,17 @@
+#include "sound.h"
+#include "spi.h"
+
+
+
+void soundInit() {
+}
+
+
+void soundCtrl(t_SoundCmd cmd) {
+  spiSendBegin(e_SPI_SOUND);
+
+  spiSendOctet((uint8_t)cmd);
+
+  spiSendEnd(e_SPI_SOUND);
+}
+