TWI

Data Structures
struct	avr_twi_msg_t
struct	avr_twi_msg_irq_t
struct	avr_twi_t

Macros
#define	AVR_IOCTL_TWI_GETIRQ(_name)   AVR_IOCTL_DEF('t','w','i',(_name))
	add port number to get the real IRQ More...

Typedefs
typedef struct avr_twi_msg_t	avr_twi_msg_t
typedef struct avr_twi_msg_irq_t	avr_twi_msg_irq_t
typedef struct avr_twi_t	avr_twi_t

Enumerations
enum	{ TWI_IRQ_INPUT = 0, TWI_IRQ_OUTPUT, TWI_IRQ_STATUS, TWI_IRQ_COUNT }
enum	{   TWI_COND_START = (1 << 0), TWI_COND_STOP = (1 << 1), TWI_COND_ADDR = (1 << 2), TWI_COND_ACK = (1 << 3),   TWI_COND_WRITE = (1 << 4), TWI_COND_READ = (1 << 5), TWI_COND_SLAVE = (1 << 6) }

Functions
void	avr_twi_init (avr_t *avr, avr_twi_t *port)
uint32_t	avr_twi_irq_msg (uint8_t msg, uint8_t addr, uint8_t data)
	Create a message value for twi including the 'msg' bitfield, 'addr' and data. More...

Detailed Description

Macro Definition Documentation

#define AVR_IOCTL_TWI_GETIRQ

(

_name

)

AVR_IOCTL_DEF('t','w','i',(_name))

add port number to get the real IRQ

Typedef Documentation

typedef struct avr_twi_msg_irq_t avr_twi_msg_irq_t

typedef struct avr_twi_msg_t avr_twi_msg_t

typedef struct avr_twi_t avr_twi_t

Enumeration Type Documentation

anonymous enum

Enumerator
TWI_IRQ_INPUT
TWI_IRQ_OUTPUT
TWI_IRQ_STATUS
TWI_IRQ_COUNT

anonymous enum

Enumerator
TWI_COND_START
TWI_COND_STOP
TWI_COND_ADDR
TWI_COND_ACK
TWI_COND_WRITE
TWI_COND_READ
TWI_COND_SLAVE	internal state, do not use in irq messages

Function Documentation

void avr_twi_init	(	avr_t *	avr,
		avr_twi_t *	port
	)

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uint32_t avr_twi_irq_msg	(	uint8_t	msg,
		uint8_t	addr,
		uint8_t	data
	)

Create a message value for twi including the 'msg' bitfield, 'addr' and data.

This value is what is sent as the IRQ value

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