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/testbed/atapi/ataio.h

http://rtems-atapi.googlecode.com/
C++ Header | 55 lines | 36 code | 12 blank | 7 comment | 0 complexity | 115e8faca02881b96da98d5bd746eebd MD5 | raw file
 1/*	$NetBSD: ataio.h,v 1.8 2007/03/04 06:03:40 christos Exp $	*/
 2
 3#ifndef _SYS_ATAIO_H_
 4#define _SYS_ATAIO_H_
 5
 6#include <sys/types.h>
 7#include <sys/ioctl.h>
 8
 9typedef struct	atareq {
10	u_long	flags;		/* info about the request status and type */
11	u_char	command;	/* command code */
12	u_char	features;	/* feature modifier bits for command */
13	u_char	sec_count;	/* sector count */
14	u_char	sec_num;	/* sector number */
15	u_char	head;		/* head number */
16	u_short	cylinder;	/* cylinder/lba address */
17
18	void *	databuf;	/* Pointer to I/O data buffer */
19	u_long	datalen;	/* length of data buffer */
20	int	timeout;	/* Command timeout */
21	u_char	retsts;		/* the return status for the command */
22	u_char	error;		/* error bits */
23} atareq_t;
24
25/* bit definitions for flags */
26#define ATACMD_READ		0x00000001
27#define ATACMD_WRITE		0x00000002
28#define ATACMD_READREG		0x00000004
29
30/* definitions for the return status (retsts) */
31#define ATACMD_OK	0x00
32#define ATACMD_TIMEOUT	0x01
33#define ATACMD_ERROR	0x02
34#define ATACMD_DF	0x03
35
36#define ATAIOCCOMMAND	_IOWR('Q', 8, atareq_t)
37
38/*
39 * ATA bus IOCTL
40 */
41/* Scan bus for new devices. */
42struct atabusioscan_args {
43	int	at_dev;		/* device to scan, -1 for wildcard */
44};
45#define ATABUSIOSCAN	_IOW('A', 50, struct atabusioscan_args)
46
47#define ATABUSIORESET	_IO('A', 51) /* reset ATA bus */
48
49struct atabusiodetach_args {
50	int	at_dev;		/* device to detach; -1 for wildcard */
51};
52#define ATABUSIODETACH	_IOW('A', 52, struct atabusiodetach_args)
53
54
55#endif /* _SYS_ATAIO_H_ */