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// *************************************************************************************

//

// Filename:  hal_SPI.h: 

// Declarations for Communication with the MMC (see mmc.c) in unprotected SPI mode.

//

// Version 1.1

//    added ul declaration in macros mmcWriteSector and mmcReadSector

// *************************************************************************************

#ifndef _SPILIB_H

#define _SPILIB_H

#include "hal_hardware_board.h"

//----------------------------------------------------------------------------

//  These constants are used to identify the chosen SPI and UART

//  interfaces.

//----------------------------------------------------------------------------

#define SER_INTF_NULL    0

#define SER_INTF_USART0  1

#define SER_INTF_USART1  2

#define SER_INTF_USCIA0  3

#define SER_INTF_USCIA1  4

#define SER_INTF_USCIB0  5

#define SER_INTF_USCIB1  6

#define SER_INTF_USI     7

#define SER_INTF_BITBANG 8

#if SPI_SER_INTF == SER_INTF_USART0

 #define halSPIRXBUF  U0RXBUF

 #define halSPI_SEND(x) U0TXBUF=x

 #define halSPITXREADY  (IFG1&UTXIFG0)         /* Wait for TX to be ready */

 #define halSPITXDONE  (U0TCTL&TXEPT)          /* Wait for TX to finish */

 #define halSPIRXREADY (IFG1&URXIFG0)          /* Wait for TX to be ready */

 #define halSPIRXFG_CLR IFG1 &= ~URXIFG0

 #define halSPI_PxIN  SPI_USART0_PxIN

 #define halSPI_SOMI  SPI_USART0_SOMI

 #elif SPI_SER_INTF == SER_INTF_USART1

 #define halSPIRXBUF  U1RXBUF

 #define halSPI_SEND(x) U1TXBUF=x

 #define halSPITXREADY  (IFG2&UTXIFG1)         /* Wait for TX to be ready */

 #define halSPITXDONE  (U1TCTL&TXEPT)          /* Wait for TX to finish */

 #define halSPIRXREADY (IFG2&URXIFG1)          /* Wait for TX to be ready */

 #define halSPIRXFG_CLR IFG2 &= ~URXIFG1

 #define halSPI_PxIN  SPI_USART1_PxIN

 #define halSPI_SOMI  SPI_USART1_SOMI

 #elif SPI_SER_INTF == SER_INTF_USCIA0

 #define halSPIRXBUF  UCA0RXBUF

 #define halSPI_SEND(x) UCA0TXBUF=x

 #define halSPITXREADY  (IFG2&UCA0TXIFG)		/* Wait for TX to be ready */

 #define halSPITXDONE  !(UCA0STAT&UCBUSY)		/* Wait for TX to finish */

 #define halSPIRXREADY (IFG2&UCB0RXIFG)			/* Wait for TX to be ready */

 #define halSPIRXFG_CLR IFG2 &= ~UCA0RXIFG

 #define halSPI_PxIN  SPI_USART0_PxIN

 #define halSPI_SOMI  SPI_USART0_SOMI

 #elif SPI_SER_INTF == SER_INTF_USCIA1

 #define halSPIRXBUF  UCA1RXBUF

 #define halSPI_SEND(x) UCA1TXBUF=x

 #define halSPITXREADY  (UC1IFG&UCA1TXIFG)		/* Wait for TX to be ready */

 #define halSPITXDONE  !(UCA1STAT&UCBUSY)		/* Wait for TX to finish */

 #define halSPIRXREADY (UC1IFG&UCA1RXIFG)		/* Wait for TX to be ready */

 #define halSPIRXFG_CLR UC1IFG &= ~UCA1RXIFG

 #define halSPI_PxIN  SPI_USART0_PxIN

 #define halSPI_SOMI  SPI_USART0_SOMI

 #elif SPI_SER_INTF == SER_INTF_USCIB0

 #define halSPIRXBUF  UCB0RXBUF

 #define halSPI_SEND(x) UCB0TXBUF=x

 #define halSPITXREADY  (UC0IFG&UCB0TXIFG)     /* Wait for TX to be ready */

 #define halSPITXDONE  !(UCB0STAT&UCBUSY)      /* Wait for TX to finish */

 #define halSPIRXREADY (UC0IFG&UCB0RXIFG)      /* Wait for TX to be ready */

 #define halSPIRXFG_CLR UC0IFG &= ~UCB0RXIFG

 #define halSPI_PxIN  SPI_USART0_PxIN

 #define halSPI_SOMI  SPI_USART0_SOMI

 #elif SPI_SER_INTF == SER_INTF_USCIB1

 #define halSPIRXBUF  UCB1RXBUF

 #define halSPI_SEND(x) UCB1TXBUF=x

 #define halSPITXREADY  (UC1IFG&UCB1TXIFG)		/* Wait for TX to be ready */

 #define halSPITXDONE  !(UCB1STAT&UCBUSY)		/* Wait for TX to finish */

 #define halSPIRXREADY (UC1IFG&UCB1RXIFG)		/* Wait for TX to be ready */

 #define halSPIRXFG_CLR UC1IFG &= ~UCB1RXIFG

 #define halSPI_PxIN  SPI_USART0_PxIN

 #define halSPI_SOMI  SPI_USART0_SOMI

 #elif SPI_SER_INTF == SER_INTF_USI

 #define halSPIRXBUF  USISRL

 #define halSPI_SEND(x) USISRL = x; USICNT = 8

 #define halSPITXREADY (USICTL1&USIIFG)

 #define halSPITXDONE  (USICTL1&USIIFG)

 #define halSPIRXREADY (USICTL1&USIIFG)

 #define halSPIRXFG_CLR

 #define halSPI_PxIN  SPI_BITBANG_PxIN

 #define halSPI_SOMI  SPI_BITBANG_SOMI

 #elif SPI_SER_INTF == SER_INTF_BITBANG

 #define halSPIRXBUF  spi_bitbang_in_data

 #define halSPI_SEND(x) spi_bitbang_inout(x)

 #define halSPITXREADY  1

 #define halSPITXDONE   1

 #define halSPIRXREADY  1

 #define halSPIRXFG_CLR

 #define halSPI_PxIN  SPI_BITBANG_PxIN

 #define halSPI_SOMI  SPI_BITBANG_SOMI

#endif

// Variables

#define DUMMY_CHAR 0xFF

// Function Prototypes

void halSPISetup (void);

unsigned char spiSendByte(const unsigned char data);

unsigned char spiReadFrame(unsigned char* pBuffer, unsigned int size);

unsigned char spiSendFrame(unsigned char* pBuffer, unsigned int size);

void halSPISetSpeedHigh(void);

void halSPISetSpeedLow(void);

void halSPISetPolarityPhase(char polarity, char phase);

#endif /* _SPILIB_H */