sd_active support

Author: pschatzmann

src/Driver.h

@@ -30,6 +30,9 @@ const samplerate_t rate_code[8] = {RATE_08K, RATE_11K, RATE_16K, RATE_22K,
  */
 class CodecConfig : public codec_config_t {
 public:
+  // if sd active we setup SPI for the SD
+  bool sd_active = true;
+
   /// @brief setup default values
   CodecConfig() {
     adc_input = ADC_INPUT_LINE1;
@@ -155,6 +158,7 @@ class AudioDriver {
   virtual bool begin(CodecConfig codecCfg, DriverPins &pins) {
     codec_cfg = codecCfg;
     p_pins = &pins;
+    pins.setSPIActiveForSD(codecCfg.sd_active);
     if (!init(codec_cfg)) {
       AD_LOGE("init failed");
       return false;

src/DriverPins.h

@@ -289,7 +289,10 @@ class DriverPins {
     // setup spi
     bool result = true;
     for (auto &tmp : spi) {
-      result &= tmp.begin();
+      if (tmp.function==SD && sd_active)
+        result &= tmp.begin();
+      else
+        result &= tmp.begin();
     }
     // setup i2c
     for (auto &tmp : i2c) {
@@ -331,11 +334,19 @@ class DriverPins {
     }
   }
 
+  void setSPIActiveForSD(bool active){
+    sd_active = active;
+  }
+  bool isSPIActiveForSD(){
+    return sd_active;
+  }
+
 protected:
   Vector<PinsI2S> i2s{0};
   Vector<PinsSPI> spi{0};
   Vector<PinsI2C> i2c{0};
   Vector<PinsFunction> pins{0};
+  bool sd_active = true;
 };
 
 /**