Mark build test makefiles as being incompatible with parallel make builds, as they...

[pub/USBasp.git] / LUFA / Drivers / Peripheral / AVR8 / SerialSPI_AVR8.h

diff --git a/LUFA/Drivers/Peripheral/AVR8/SerialSPI_AVR8.h b/LUFA/Drivers/Peripheral/AVR8/SerialSPI_AVR8.h
index fe108e5..24d341f 100644 (file)
--- a/LUFA/Drivers/Peripheral/AVR8/SerialSPI_AVR8.h
+++ b/LUFA/Drivers/Peripheral/AVR8/SerialSPI_AVR8.h
@@ -29,7 +29,7 @@
 */
 
 /** \file
- *  \brief Serial USART Master SPI Mode Peripheral Driver (XMEGA)
+ *  \brief Master SPI Mode Serial USART Peripheral Driver (XMEGA)
  *
  *  On-chip Master SPI mode USART driver for the XMEGA AVR microcontrollers.
  *
@@ -38,7 +38,7 @@
  */
 
 /** \ingroup Group_SerialSPI
- *  \defgroup Group_SerialSPI_AVR8 Serial USART Peripheral Driver (AVR8)
+ *  \defgroup Group_SerialSPI_AVR8 Master SPI Mode Serial USART Peripheral Driver (AVR8)
  *
  *  \section Sec_ModDescription Module Description
  *  On-chip serial USART driver for the 8-bit AVR8 microcontrollers.
@@ -53,17 +53,17 @@
  *  \code
  *      // Initialize the Master SPI mode USART driver before first use, with 1Mbit baud
  *      SerialSPI_Init((USART_SPI_SCK_LEAD_RISING | SPI_SAMPLE_LEADING | SPI_ORDER_MSB_FIRST), 1000000);
- *
+ *      
  *      // Send several bytes, ignoring the returned data
  *      SerialSPI_SendByte(0x01);
  *      SerialSPI_SendByte(0x02);
  *      SerialSPI_SendByte(0x03);
- *
+ *      
  *      // Receive several bytes, sending a dummy 0x00 byte each time
  *      uint8_t Byte1 = SerialSPI_ReceiveByte();
  *      uint8_t Byte2 = SerialSPI_ReceiveByte();
  *      uint8_t Byte3 = SerialSPI_ReceiveByte();
- *
+ *      
  *      // Send a byte, and store the received byte from the same transaction
  *      uint8_t ResponseByte = SerialSPI_TransferByte(0xDC);
  *  \endcode
@@ -98,28 +98,28 @@
                /* Macros: */
                        /** \name SPI SCK Polarity Configuration Masks */
                        //@{
-                       /** SPI clock polarity mask for \c SPI_Init(). Indicates that the SCK should lead on the rising edge. */
+                       /** SPI clock polarity mask for \ref SPI_Init(). Indicates that the SCK should lead on the rising edge. */
                        #define USART_SPI_SCK_LEAD_RISING            (0 << UCPOL)
 
-                       /** SPI clock polarity mask for \c SPI_Init(). Indicates that the SCK should lead on the falling edge. */
+                       /** SPI clock polarity mask for \ref SPI_Init(). Indicates that the SCK should lead on the falling edge. */
                        #define USART_SPI_SCK_LEAD_FALLING           (1 << UCPOL)
                        //@}
 
                        /** \name SPI Sample Edge Configuration Masks */
                        //@{
-                       /** SPI data sample mode mask for \c SerialSPI_Init(). Indicates that the data should sampled on the leading edge. */
+                       /** SPI data sample mode mask for \ref SerialSPI_Init(). Indicates that the data should sampled on the leading edge. */
                        #define USART_SPI_SAMPLE_LEADING             (0 << UPCHA)
 
-                       /** SPI data sample mode mask for \c SerialSPI_Init(). Indicates that the data should be sampled on the trailing edge. */
+                       /** SPI data sample mode mask for \ref SerialSPI_Init(). Indicates that the data should be sampled on the trailing edge. */
                        #define USART_SPI_SAMPLE_TRAILING            (1 << UPCHA)
                        //@}
 
                        /** \name SPI Data Ordering Configuration Masks */
                        //@{
-                       /** SPI data order mask for \c Serial_SPIInit(). Indicates that data should be shifted out MSB first. */
+                       /** SPI data order mask for \ref SerialSPI_Init(). Indicates that data should be shifted out MSB first. */
                        #define USART_SPI_ORDER_MSB_FIRST            (0 << UDORD)
 
-                       /** SPI data order mask for \c Serial_SPIInit(). Indicates that data should be shifted out LSB first. */
+                       /** SPI data order mask for \ref SerialSPI_Init(). Indicates that data should be shifted out LSB first. */
                        #define USART_SPI_ORDER_LSB_FIRST            (1 << UDORD)
                        //@}                    
 
@@ -176,9 +176,7 @@
                         */
                        static inline void SerialSPI_SendByte(const uint8_t DataByte)
                        {
-                               UDR1 = DataByte;
-                               while (!(UCSR1A & (1 << TXC1)));
-                               UCSR1A = (1 << TXC1);
+                               SerialSPI_TransferByte(DataByte);
                        }
 
                        /** Sends a dummy byte through the USART SPI interface, blocking until the transfer is complete. The response
@@ -188,10 +186,7 @@
                         */
                        static inline uint8_t SerialSPI_ReceiveByte(void)
                        {
-                               UDR1 = 0;
-                               while (!(UCSR1A & (1 << TXC1)));
-                               UCSR1A = (1 << TXC1);
-                               return UDR1;
+                               return SerialSPI_TransferByte(0);
                        }
                        
        /* Disable C linkage for C++ Compilers: */