blkdev.h File Reference

Block Device Management. More...

#include <rtems.h>
#include <rtems/diskdevs.h>
#include <rtems/print.h>
#include <sys/ioccom.h>
#include <stdio.h>

Go to the source code of this file.

Data Structures
struct	rtems_blkdev_sg_buffer
	Block device scatter or gather buffer structure. More...
struct	rtems_blkdev_request
	The block device transfer request is used to read or write a number of blocks from or to the device. More...

Macros
#define	RTEMS_BLKDEV_START_BLOCK(req)   (req->bufs[0].block)
	The start block in a request.
#define	RTEMS_GENERIC_BLOCK_DEVICE_DRIVER_ENTRIES
IO Control Request Codes
#define	RTEMS_BLKIO_REQUEST   _IOWR('B', 1, rtems_blkdev_request)
#define	RTEMS_BLKIO_GETMEDIABLKSIZE   _IOR('B', 2, uint32_t)
#define	RTEMS_BLKIO_GETBLKSIZE   _IOR('B', 3, uint32_t)
#define	RTEMS_BLKIO_SETBLKSIZE   _IOW('B', 4, uint32_t)
#define	RTEMS_BLKIO_GETSIZE   _IOR('B', 5, rtems_blkdev_bnum)
#define	RTEMS_BLKIO_SYNCDEV   _IO('B', 6)
#define	RTEMS_BLKIO_DELETED   _IO('B', 7)
#define	RTEMS_BLKIO_CAPABILITIES   _IO('B', 8)
#define	RTEMS_BLKIO_GETDISKDEV   _IOR('B', 9, rtems_disk_device *)
#define	RTEMS_BLKIO_PURGEDEV   _IO('B', 10)
#define	RTEMS_BLKIO_GETDEVSTATS   _IOR('B', 11, rtems_blkdev_stats *)
#define	RTEMS_BLKIO_RESETDEVSTATS   _IO('B', 12)
Block Device Driver Capabilities
#define	RTEMS_BLKDEV_CAP_MULTISECTOR_CONT   (1 << 0)
	Only consecutive multi-sector buffer requests are supported.
#define	RTEMS_BLKDEV_CAP_SYNC   (1 << 1)
	The driver will accept a sync call.

Typedefs
typedef enum rtems_blkdev_request_op	rtems_blkdev_request_op
	Block device request type.
typedef void(*	rtems_blkdev_request_cb) (struct rtems_blkdev_request *req, rtems_status_code status)
	Block device request done callback function type.
typedef struct rtems_blkdev_sg_buffer	rtems_blkdev_sg_buffer
	Block device scatter or gather buffer structure.
typedef struct rtems_blkdev_request	rtems_blkdev_request
	The block device transfer request is used to read or write a number of blocks from or to the device.

Enumerations
enum	rtems_blkdev_request_op { RTEMS_BLKDEV_REQ_READ , RTEMS_BLKDEV_REQ_WRITE , RTEMS_BLKDEV_REQ_SYNC }
	Block device request type. More...

Functions
int	rtems_blkdev_ioctl (rtems_disk_device *dd, uint32_t req, void *argp)
	Common IO control primitive.
rtems_status_code	rtems_blkdev_create (const char *device, uint32_t media_block_size, rtems_blkdev_bnum media_block_count, rtems_block_device_ioctl handler, void *driver_data)
	Creates a block device.
rtems_status_code	rtems_blkdev_create_partition (const char *partition, const char *parent_block_device, rtems_blkdev_bnum media_block_begin, rtems_blkdev_bnum media_block_count)
	Creates a partition within a parent block device.
void	rtems_blkdev_print_stats (const rtems_blkdev_stats *stats, uint32_t media_block_size, uint32_t media_block_count, uint32_t block_size, const rtems_printer *printer)
	Prints the block device statistics.
void	rtems_blkstats (const rtems_printer *printer, const char *device, bool reset)
	Block device statistics command.
RTEMS_DEPRECATED rtems_device_driver	rtems_blkdev_generic_read (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
RTEMS_DEPRECATED rtems_device_driver	rtems_blkdev_generic_write (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
RTEMS_DEPRECATED rtems_device_driver	rtems_blkdev_generic_open (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
RTEMS_DEPRECATED rtems_device_driver	rtems_blkdev_generic_close (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
RTEMS_DEPRECATED rtems_device_driver	rtems_blkdev_generic_ioctl (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)

Variables
RTEMS_DEPRECATED const rtems_driver_address_table	rtems_blkdev_generic_ops

Detailed Description

Block Device Management.