Utilities to work with Fomu, as attached to a Raspberry Pi
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
fomu-flash/spi.h

89 lines
2.3 KiB

#ifndef BB_SPI_H_
#define BB_SPI_H_
#include <stdint.h>
enum spi_state {
SS_UNCONFIGURED = 0,
SS_SINGLE,
SS_DUAL_RX,
SS_DUAL_TX,
SS_QUAD_RX,
SS_QUAD_TX,
SS_HARDWARE,
};
enum spi_type {
ST_UNCONFIGURED,
ST_SINGLE,
ST_DUAL,
ST_QUAD,
ST_QPI,
};
enum spi_pin {
SP_MOSI,
SP_MISO,
SP_HOLD,
SP_WP,
SP_CS,
SP_CLK,
SP_D0,
SP_D1,
SP_D2,
SP_D3,
};
struct spi_id {
uint8_t manufacturer_id; // Result from 0x90
uint8_t device_id; // Result from 0x90
uint8_t _manufacturer_id; // Result from 0x9f
uint8_t memory_type; // Result from 0x9f
uint8_t memory_size; // Result from 0x9f
uint8_t signature; // Result from 0xab
uint8_t serial[4]; // Result from 0x4b
int bytes; // -1 if unknown
const char *manufacturer;
const char *model;
const char *capacity;
};
struct ff_spi;
void spiPause(struct ff_spi *spi);
void spiBegin(struct ff_spi *spi);
void spiEnd(struct ff_spi *spi);
//void spiSingleTx(struct ff_spi *spi, uint8_t out);
//uint8_t spiSingleRx(struct ff_spi *spi);
//void spiDualTx(struct ff_spi *spi, uint8_t out);
//void spiQuadTx(struct ff_spi *spi, uint8_t out);
void spiCommand(struct ff_spi *spi, uint8_t cmd);
//uint8_t spiDualRx(struct ff_spi *spi);
//uint8_t spiQuadRx(struct ff_spi *spi);
int spiTx(struct ff_spi *spi, uint8_t word);
uint8_t spiRx(struct ff_spi *spi);
uint8_t spiReadStatus(struct ff_spi *spi, uint8_t sr);
void spiWriteStatus(struct ff_spi *spi, uint8_t sr, uint8_t val);
void spiReadSecurity(struct ff_spi *spi, uint8_t sr, uint8_t security[256]);
void spiWriteSecurity(struct ff_spi *spi, uint8_t sr, uint8_t security[256]);
int spiSetType(struct ff_spi *spi, enum spi_type type);
int spiRead(struct ff_spi *spi, uint32_t addr, uint8_t *data, unsigned int count);
struct spi_id spiId(struct ff_spi *spi);
void spiOverrideSize(struct ff_spi *spi, uint32_t new_size);
//int spi_wait_for_not_busy(struct ff_spi *spi);
int spiWrite(struct ff_spi *spi, uint32_t addr, const uint8_t *data, unsigned int count);
uint8_t spiReset(struct ff_spi *spi);
int spiInit(struct ff_spi *spi);
void spiHold(struct ff_spi *spi);
void spiUnhold(struct ff_spi *spi);
void spiSwapTxRx(struct ff_spi *spi);
struct ff_spi *spiAlloc(void);
void spiSetPin(struct ff_spi *spi, enum spi_pin pin, int val);
void spiFree(struct ff_spi **spi);
#endif /* BB_SPI_H_ */