X-Git-Url: http://git.rot13.org/?p=goodfet;a=blobdiff_plain;f=firmware%2Finclude%2Fspi.h;h=0f272daeabb6f0357083ea99b781a404efc39c58;hp=c39766d5ea501bdf78de425510bbb0bfe154959f;hb=a031b4a563978102c664466d1e91a9c3ab0553dd;hpb=ae09939eb8c62c83f244527e7916cee5f9145e6c;ds=sidebyside diff --git a/firmware/include/spi.h b/firmware/include/spi.h index c39766d..0f272da 100644 --- a/firmware/include/spi.h +++ b/firmware/include/spi.h @@ -3,18 +3,58 @@ \brief Definitions for the SPI application. */ +#ifndef SPI_H +#define SPI_H + +#include "app.h" + +#define SPI 0x01 //Pins and I/O -#define SS BIT0 #define MOSI BIT1 #define MISO BIT2 #define SCK BIT3 -#define SETSS P5OUT|=SS -#define CLRSS P5OUT&=~SS +#define SETMOSI SPIOUT|=MOSI +#define CLRMOSI SPIOUT&=~MOSI +#define SETCLK SPIOUT|=SCK +#define CLRCLK SPIOUT&=~SCK +#define READMISO (SPIIN&MISO?1:0) + +//FIXME this should be defined by the platform. +#define SETTST P4OUT|=TST +#define CLRTST P4OUT&=~TST +#define SETRST P2OUT|=RST +#define CLRRST P2OUT&=~RST + +//! Set up the pins for SPI mode. +void spisetup(); + +//! Read and write an SPI byte. +unsigned char spitrans8(unsigned char byte); + +//! Read a block to a buffer. +void spiflash_peekblock(unsigned long adr, + unsigned char *buf, + unsigned int len); + + +//! Write many blocks to the SPI Flash. +void spiflash_pokeblocks(unsigned long adr, + unsigned char *buf, + unsigned int len); + + +//! Enable SPI writing +void spiflash_wrten(); + +//! Read and write an SPI byte. +unsigned char spitrans8(unsigned char byte); +//! Grab the SPI flash status byte. +unsigned char spiflash_status(); +//! Erase a sector. +void spiflash_erasesector(unsigned long adr); + +extern app_t const spi_app; -#define SETMOSI P5OUT|=MOSI -#define CLRMOSI P5OUT&=~MOSI -#define SETCLK P5OUT|=SCK -#define CLRCLK P5OUT&=~SCK -#define READMISO (P5IN&MISO?1:0) +#endif