work on spi interface

ked/csl/interfaces/spi.h

@@ -23,10 +23,47 @@ extern "C" {
 #include <stdint.h>
 #include "hardwareDescription.h"
 
-/** This is the spi hardware channel class*/
+typedef enum{
+	NONINVERTED,
+	INVERTED
+}spi_clkPol_t;
 
+typedef enum{
+	MSB_FIRST,
+	LSB_FIRST
+}spi_framef_t;
+
+/**
+ * @brief This is the spi hardware channel class
+ * @param spi_hw_ch SPI hardware channel
+ */
 void spi_init(spiCH_t spi_hw_ch);
 
+/**
+ * @brief Enable spi hardware channel
+ * @param spi_hw_ch SPI hardware channel
+ */
+void spi_enable(spiCH_t spi_hw_ch);
+
+/**
+ * @brief set SPI clock polarity
+ * @param clkPol Clock polarity
+ */
+void spi_setPolarity(spi_clkPol_t clkPol);
+
+/**
+ * @brief Set SPI frame format
+ * @param framef Frame format
+ */
+void spi_set_setFrameFormat(spi_framef_t framef);
+
+/**
+ * @brief Set Clock Prescaler
+ * This is dependent on your target device. Please enter in the correct value.
+ * The entered Value will be masked with the maximal number of bits (truncated)
+ * @param clkDiv
+ */
+void spi_setClockPrescaler(uint32_t clkDiv);
 
 /*!
  * @brief Transmits and receives on byte of data