bitbang.c File Reference

#include <console/console.h>
#include <delay.h>
#include <spi_bitbang.h>

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Macros
#define	TRACE   0
#define	HALF_CLOCK_US   0

Functions
int	spi_bitbang_claim_bus (const struct spi_bitbang_ops *ops)
void	spi_bitbang_release_bus (const struct spi_bitbang_ops *ops)
int	spi_bitbang_xfer (const struct spi_bitbang_ops *ops, const void *dout, size_t bytes_out, void *din, size_t bytes_in)

Macro Definition Documentation

HALF_CLOCK_US

#define HALF_CLOCK_US   0

Definition at line 15 of file bitbang.c.

TRACE

#define TRACE   0

Definition at line 8 of file bitbang.c.

Function Documentation

spi_bitbang_claim_bus()

int spi_bitbang_claim_bus

(

const struct spi_bitbang_ops *

ops

)

Definition at line 17 of file bitbang.c.

References ops.

Referenced by spi_ctrlr_claim_bus().

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spi_bitbang_release_bus()

void spi_bitbang_release_bus

(

const struct spi_bitbang_ops *

ops

)

Definition at line 23 of file bitbang.c.

References ops.

Referenced by spi_ctrlr_release_bus().

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spi_bitbang_xfer()

int spi_bitbang_xfer	(	const struct spi_bitbang_ops *	ops,
		const void *	dout,
		size_t	bytes_out,
		void *	din,
		size_t	bytes_in
	)

Definition at line 29 of file bitbang.c.

References BIOS_SPEW, HALF_CLOCK_US, in_byte(), ops, out_byte(), printk, TRACE, and udelay().

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