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00001 #ifndef __CORE_SPI_H__KBMMOKI6CG__ 00002 #define __CORE_SPI_H__KBMMOKI6CG__ 00003 #include <stdint.h> 00004 00005 void 00006 spi_init(); 00007 00008 #define SPI_POLARITY_INACTIVE_HIGH 1 00009 #define SPI_POLARITY_INACTIVE_LOW 1 00010 00011 #define SPI_PHASE_CHANGE_CAPTURE 0 00012 #define SPI_PHASE_CAPTURE_CHANGE 1 00013 00014 struct spi_block { 00015 const uint8_t *send; /* NULL for receive only */ 00016 uint8_t *receive; /* NULL for send only */ 00017 uint16_t len; /* transfer length, non-zero */ 00018 }; 00019 00020 void 00021 spi_transfer(unsigned int chip, const struct spi_block *block, unsigned int blocks); 00022 00023 void 00024 spi_init_chip_select(unsigned int chip, unsigned int speed, 00025 unsigned int dlybct, 00026 unsigned int dlybs, unsigned int phase, 00027 unsigned int polarity); 00028 00029 #endif /* __CORE_SPI_H__KBMMOKI6CG__ */