pca9555.h File Reference

#include <cfg/pca9555.h>
#include <dev/twif.h>

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Defines
#define	IOXP_PORT0   0x80
#define	IOXP_PORT1   0x81
#define	IOXP_PIN0   0
#define	IOXP_PIN1   1
#define	IOXP_PIN2   2
#define	IOXP_PIN3   3
#define	IOXP_PIN4   4
#define	IOXP_PIN5   5
#define	IOXP_PIN6   6
#define	IOXP_PIN7   7
#define	GPIO_CFG_INVERT   0x00010000
#define	GPIO_CFG_NORM   0x00020000
Functions
int	IOExpInit (void)
int	IOExpPinConfigSet (int bank, int bit, uint32_t flags)
int	IOExpRawWrite (int bank, int value)
int	IOExpRawRead (int bank, int *value)
int	IOExpSetBitLow (int bank, int bit)
int	IOExpSetBitHigh (int bank, int bit)
int	IOExpGetBit (int bank, int bit, int *value)
int	IOExpSetBit (int bank, int bit, int value)

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Define Documentation

#define IOXP_PORT0   0x80

Definition at line 48 of file pca9555.h.

Referenced by InitLED(), and NutSetLed().

#define IOXP_PORT1   0x81

Definition at line 49 of file pca9555.h.

#define IOXP_PIN0   0

Definition at line 51 of file pca9555.h.

#define IOXP_PIN1   1

Definition at line 52 of file pca9555.h.

#define IOXP_PIN2   2

Definition at line 53 of file pca9555.h.

#define IOXP_PIN3   3

Definition at line 54 of file pca9555.h.

#define IOXP_PIN4   4

Definition at line 55 of file pca9555.h.

#define IOXP_PIN5   5

Definition at line 56 of file pca9555.h.

#define IOXP_PIN6   6

Definition at line 57 of file pca9555.h.

#define IOXP_PIN7   7

Definition at line 58 of file pca9555.h.

#define GPIO_CFG_INVERT   0x00010000

Definition at line 60 of file pca9555.h.

Referenced by IOExpPinConfigSet().

#define GPIO_CFG_NORM   0x00020000

Definition at line 61 of file pca9555.h.

Referenced by IOExpPinConfigSet().

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Function Documentation

int IOExpInit

(

void

)

Definition at line 75 of file pca9555.c.

References pca_regs_t::con, I2C_SLA_IOEXP, malloc(), memset(), pca_regs_t::out, PCA_CONF, PCA_PINV, PCA_POUT, pca_regs_t::pol, and TwMasterRegWrite().

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int IOExpPinConfigSet	(	int	bank,
		int	bit,
		uint32_t	flags
	)

Definition at line 102 of file pca9555.c.

References pca_regs_t::con, GPIO_CFG_INVERT, GPIO_CFG_NORM, GPIO_CFG_OUTPUT, I2C_SLA_IOEXP, pca_regs_t::out, PCA_CONF, PCA_PINV, PCA_POUT, pca_regs_t::pol, and TwMasterRegWrite().

Referenced by InitKEY(), and InitLED().

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int IOExpRawWrite	(	int	bank,
		int	value
	)

Definition at line 129 of file pca9555.c.

References I2C_SLA_IOEXP, pca_regs_t::out, PCA_POUT, and TwMasterRegWrite().

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int IOExpRawRead	(	int	bank,
		int *	value
	)

Definition at line 143 of file pca9555.c.

References I2C_SLA_IOEXP, PCA_PINP, and TwMasterRegRead().

Referenced by sys_key().

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int IOExpSetBitLow	(	int	bank,
		int	bit
	)

Definition at line 187 of file pca9555.c.

References I2C_SLA_IOEXP, pca_regs_t::out, PCA_POUT, and TwMasterRegWrite().

Referenced by IOExpSetBit().

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int IOExpSetBitHigh	(	int	bank,
		int	bit
	)

Definition at line 173 of file pca9555.c.

References I2C_SLA_IOEXP, pca_regs_t::out, PCA_POUT, and TwMasterRegWrite().

Referenced by InitLED(), and IOExpSetBit().

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int IOExpGetBit	(	int	bank,
		int	bit,
		int *	value
	)

Definition at line 156 of file pca9555.c.

References I2C_SLA_IOEXP, PCA_PINP, and TwMasterRegRead().

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int IOExpSetBit	(	int	bank,
		int	bit,
		int	value
	)

Definition at line 201 of file pca9555.c.

References IOExpSetBitHigh(), and IOExpSetBitLow().

Referenced by NutSetLed().

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