#ifndef __F38X_SPI_H__
#define __F38X_SPI_H__

#include "c8051F380.h"
#include "main.h"
#include "type.h"

#if !defined(SPI_DEBUG_BIT_BANG)
#define spi_assert_cs() {NSSMD0 = 0;}
#define spi_deassert_cs() {NSSMD0 = 1;}
#elif defined(USE_ASM_FOR_SFR_MANIP)
#define spi_assert_cs()   {__asm anl _P0,SHARP ~0x08 __endasm; }
#define spi_deassert_cs() {__asm orl _P0,SHARP  0x08 __endasm; }
#else
#define spi_assert_cs()   (P0 &= ~0x08)
#define spi_deassert_cs() (P0 |=  0x08)
#endif

u8 spi_ckr(u8 new_value);
void spi_init();

#define spi_clock(khertz) spi_ckr((u8)((SYSCLK / 1000 / 2 / khertz) - 1)) 

unsigned char spi_write_read_byte(unsigned char byte);

#define spi_send_8clock() spi_write_read_byte(0xFF)
void spi_read(unsigned char * pchar, unsigned int length);
void spi_write(unsigned char * pchar, unsigned int length);

#endif