IO Port

Data Structures
struct	avr_ioport_getirq_t
	this ioctl takes a avr_regbit_t, compares the register address to PORT/PIN/DDR and return the corresponding IRQ(s) if it matches More...
struct	avr_ioport_state_t
	ioctl used to get a port state. More...
struct	avr_ioport_external_t
	ioctl used to set default port state when set as input. More...
struct	avr_iopin_t
	pin structure More...
struct	avr_ioport_t
	Definition for an IO port. More...

Macros
#define	AVR_IOPORT_OUTPUT   0x100
#define	AVR_IOCTL_IOPORT_GETIRQ(_name)   AVR_IOCTL_DEF('i','o','g',(_name))
	add port name (uppercase) to get the real IRQ More...
#define	AVR_IOCTL_IOPORT_GETIRQ_REGBIT   AVR_IOCTL_DEF('i','o','g','r')
#define	AVR_IOCTL_IOPORT_GETSTATE(_name)   AVR_IOCTL_DEF('i','o','s',(_name))
	add port name (uppercase) to get the port state More...
#define	AVR_IOCTL_IOPORT_SET_EXTERNAL(_name)   AVR_IOCTL_DEF('i','o','p',(_name))
	add port name (uppercase) to set default input pin IRQ values More...
#define	AVR_IOPIN(_port, _pin)   { .port = _port, .pin = _pin }
#define	AVR_IOPORT_DECLARE(_lname, _cname, _uname)

Typedefs
typedef struct avr_ioport_getirq_t	avr_ioport_getirq_t
	this ioctl takes a avr_regbit_t, compares the register address to PORT/PIN/DDR and return the corresponding IRQ(s) if it matches More...
typedef struct avr_ioport_state_t	avr_ioport_state_t
	ioctl used to get a port state. More...
typedef struct avr_ioport_external_t	avr_ioport_external_t
	ioctl used to set default port state when set as input. More...
typedef struct avr_iopin_t	avr_iopin_t
	pin structure More...
typedef struct avr_ioport_t	avr_ioport_t
	Definition for an IO port. More...

Enumerations
enum	{   IOPORT_IRQ_PIN0 = 0, IOPORT_IRQ_PIN1, IOPORT_IRQ_PIN2, IOPORT_IRQ_PIN3,   IOPORT_IRQ_PIN4, IOPORT_IRQ_PIN5, IOPORT_IRQ_PIN6, IOPORT_IRQ_PIN7,   IOPORT_IRQ_PIN_ALL, IOPORT_IRQ_DIRECTION_ALL, IOPORT_IRQ_REG_PORT, IOPORT_IRQ_REG_PIN,   IOPORT_IRQ_COUNT }

Functions
void	avr_ioport_init (avr_t *avr, avr_ioport_t *port)

Detailed Description

Macro Definition Documentation

#define AVR_IOCTL_IOPORT_GETIRQ

(

_name

)

AVR_IOCTL_DEF('i','o','g',(_name))

add port name (uppercase) to get the real IRQ

#define AVR_IOCTL_IOPORT_GETIRQ_REGBIT   AVR_IOCTL_DEF('i','o','g','r')

#define AVR_IOCTL_IOPORT_GETSTATE

(

_name

)

AVR_IOCTL_DEF('i','o','s',(_name))

add port name (uppercase) to get the port state

#define AVR_IOCTL_IOPORT_SET_EXTERNAL

(

_name

)

AVR_IOCTL_DEF('i','o','p',(_name))

add port name (uppercase) to set default input pin IRQ values

#define AVR_IOPIN	(		_port,
			_pin
	)		{ .port = _port, .pin = _pin }

#define AVR_IOPORT_DECLARE	(		_lname,
			_cname,
			_uname
	)

Value:

.port ## _lname = { \
  .name = _cname, .r_port = PORT ## _uname, .r_ddr = DDR ## _uname, .r_pin = PIN ## _uname, \
 }

#define AVR_IOPORT_OUTPUT   0x100

Typedef Documentation

typedef struct avr_iopin_t avr_iopin_t

pin structure

typedef struct avr_ioport_external_t avr_ioport_external_t

ioctl used to set default port state when set as input.

typedef struct avr_ioport_getirq_t avr_ioport_getirq_t

this ioctl takes a avr_regbit_t, compares the register address to PORT/PIN/DDR and return the corresponding IRQ(s) if it matches

typedef struct avr_ioport_state_t avr_ioport_state_t

ioctl used to get a port state.

for (int i = 'A'; i <= 'F'; i++) { avr_ioport_state_t state; if (avr_ioctl(AVR_IOCTL_IOPORT_GETSTATE(i), &state) == 0) printf("PORT%c %02x DDR %02x PIN %02x\n", state.name, state.port, state.ddr, state.pin); }

typedef struct avr_ioport_t avr_ioport_t

Definition for an IO port.

Enumeration Type Documentation

anonymous enum

Enumerator
IOPORT_IRQ_PIN0
IOPORT_IRQ_PIN1
IOPORT_IRQ_PIN2
IOPORT_IRQ_PIN3
IOPORT_IRQ_PIN4
IOPORT_IRQ_PIN5
IOPORT_IRQ_PIN6
IOPORT_IRQ_PIN7
IOPORT_IRQ_PIN_ALL
IOPORT_IRQ_DIRECTION_ALL
IOPORT_IRQ_REG_PORT
IOPORT_IRQ_REG_PIN
IOPORT_IRQ_COUNT

Function Documentation

void avr_ioport_init	(	avr_t *	avr,
		avr_ioport_t *	port
	)

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