spi decoder callbacks wip

bsp_q7s/gpio/gpioCallbacks.h

@@ -18,6 +18,40 @@ namespace gpioCallbacks {
      *          chips SN74LVC138APWR on the TCS board.
      */
     void tcsBoardDecoderCallback(gpioId_t gpioId, gpio::GpioOperation gpioOp, int value, void* args);
+
+    /**
+     * @brief   This function sets mux bits 1-3 to a state which will only enable the decoder
+     *          on the TCS board which is named to IC1 in the schematic.
+     */
+    void enableDecoderTcsIc1();
+
+    /**
+     * @brief   This function sets mux bits 1-3 to a state which will only enable the decoder
+     *          on the TCS board which is named to IC2 in the schematic.
+     */
+    void enableDecoderTcsIc2();
+
+    /**
+     * @brief   This function sets mux bits 1-3 to a state which will only enable the decoder
+     *          on the inteface board board which is named to IC21 in the schematic.
+     */
+    void enableDecoderInterfaceBoardIc21();
+
+    /**
+     * @brief   This function sets mux bits 1-3 to a state which will only enable the decoder
+     *          on the inteface board board which is named to IC22 in the schematic.
+     */
+    void enableDecoderInterfaceBoardIc22();
+
+    /** The following functions enable the appropriate channel of the currently enabled decoder */
+    void selectY0();
+    void selectY1();
+    void selectY2();
+    void selectY3();
+    void selectY4();
+    void selectY5();
+    void selectY6();
+    void selectY7();
 }
 
 #endif /* LINUX_GPIO_GPIOCALLBACKS_H_ */