Legacy I2C Library

Legacy I2C library. More...

Files
file	libi2c.h
	Legacy I2C Library.

Data Structures
struct	rtems_libi2c_bus_t_
struct	rtems_libi2c_bus_ops_
struct	rtems_libi2c_drv_t_
struct	rtems_libi2c_read_write_t
struct	rtems_libi2c_tfr_mode_t
struct	rtems_libi2c_tfm_read_write_t
struct	rtems_libi2c_read_write_async_t
	IO command data for asynchronous read and write. More...

Macros
#define	RTEMS_LIBI2C_DRIVER_TABLE_ENTRY
#define	RTEMS_LIBI2C_MAKE_MINOR(busno, i2caddr)    ((((busno)&((1<<3)-1))<<10) | ((i2caddr)&((1<<10)-1)))
#define	RTEMS_LIBI2C_IOCTL_READ_WRITE   1
#define	RTEMS_LIBI2C_IOCTL_START_TFM_READ_WRITE   2
#define	RTEMS_LIBI2C_IOCTL_SET_TFRMODE   3
#define	RTEMS_LIBI2C_IOCTL_GET_DRV_T   4
#define	RTEMS_LIBI2C_IOCTL_READ_WRITE_ASYNC   5
	IO control command for asynchronous read and write.

Typedefs
typedef struct rtems_libi2c_bus_t_	rtems_libi2c_bus_t
typedef struct rtems_libi2c_bus_ops_	rtems_libi2c_bus_ops_t
typedef struct rtems_libi2c_drv_t_	rtems_libi2c_drv_t
typedef void(*	rtems_libi2c_read_write_done_t) (int, int, void *)
	Notification function type for asynchronous read and write.

Functions
int	rtems_libi2c_initialize (void)
rtems_status_code	rtems_i2c_init (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
rtems_status_code	rtems_i2c_open (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
rtems_status_code	rtems_i2c_close (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
rtems_status_code	rtems_i2c_read (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
rtems_status_code	rtems_i2c_write (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
rtems_status_code	rtems_i2c_ioctl (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
int	rtems_libi2c_register_bus (const char *name, rtems_libi2c_bus_t *bus)
int	rtems_libi2c_register_drv (const char *name, rtems_libi2c_drv_t *drvtbl, unsigned bus, unsigned i2caddr)
rtems_status_code	rtems_libi2c_send_start (rtems_device_minor_number minor)
rtems_status_code	rtems_libi2c_send_stop (rtems_device_minor_number minor)
rtems_status_code	rtems_libi2c_send_addr (rtems_device_minor_number minor, int rw)
int	rtems_libi2c_read_bytes (rtems_device_minor_number minor, unsigned char *bytes, int nbytes)
int	rtems_libi2c_write_bytes (rtems_device_minor_number minor, const unsigned char *bytes, int nbytes)
int	rtems_libi2c_start_read_bytes (rtems_device_minor_number minor, unsigned char *bytes, int nbytes)
int	rtems_libi2c_start_write_bytes (rtems_device_minor_number minor, const unsigned char *bytes, int nbytes)
int	rtems_libi2c_ioctl (rtems_device_minor_number minor, int cmd,...)

Variables
const rtems_driver_address_table	rtems_libi2c_io_ops
rtems_device_major_number	rtems_libi2c_major

Detailed Description

Legacy I2C library.

Macro Definition Documentation

RTEMS_LIBI2C_DRIVER_TABLE_ENTRY

#define RTEMS_LIBI2C_DRIVER_TABLE_ENTRY

Value:

{                                         \
  initialization_entry:  rtems_i2c_init,  \
  open_entry:            rtems_i2c_open,  \
  close_entry:           rtems_i2c_close, \
  read_entry:            rtems_i2c_read,  \
  write_entry:           rtems_i2c_write, \
  control_entry:         rtems_i2c_ioctl, \
}

RTEMS_LIBI2C_IOCTL_READ_WRITE_ASYNC

#define RTEMS_LIBI2C_IOCTL_READ_WRITE_ASYNC   5

IO control command for asynchronous read and write.

See also

rtems_libi2c_read_write_done_t and rtems_libi2c_read_write_async_t.

Warning

This is work in progress!

Typedef Documentation

rtems_libi2c_read_write_done_t

typedef void(* rtems_libi2c_read_write_done_t) (int, int, void *)

Notification function type for asynchronous read and write.

See also

RTEMS_LIBI2C_IOCTL_READ_WRITE_ASYNC and rtems_libi2c_read_write_async_t.

Warning

This is work in progress!