-
Notifications
You must be signed in to change notification settings - Fork 24
/
ataio.h
55 lines (43 loc) · 1.46 KB
/
ataio.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
/* $NetBSD: ataio.h,v 1.7 2005/12/11 12:25:20 christos Exp $ */
#ifndef _SYS_ATAIO_H_
#define _SYS_ATAIO_H_
#include <sys/types.h>
#include <sys/ioctl.h>
typedef struct atareq {
u_long flags; /* info about the request status and type */
u_char command; /* command code */
u_char features; /* feature modifier bits for command */
u_char sec_count; /* sector count */
u_char sec_num; /* sector number */
u_char head; /* head number */
u_short cylinder; /* cylinder/lba address */
caddr_t databuf; /* Pointer to I/O data buffer */
u_long datalen; /* length of data buffer */
int timeout; /* Command timeout */
u_char retsts; /* the return status for the command */
u_char error; /* error bits */
} atareq_t;
/* bit definitions for flags */
#define ATACMD_READ 0x00000001
#define ATACMD_WRITE 0x00000002
#define ATACMD_READREG 0x00000004
/* definitions for the return status (retsts) */
#define ATACMD_OK 0x00
#define ATACMD_TIMEOUT 0x01
#define ATACMD_ERROR 0x02
#define ATACMD_DF 0x03
#define ATAIOCCOMMAND _IOWR('Q', 8, atareq_t)
/*
* ATA bus IOCTL
*/
/* Scan bus for new devices. */
struct atabusioscan_args {
int at_dev; /* device to scan, -1 for wildcard */
};
#define ATABUSIOSCAN _IOW('A', 50, struct atabusioscan_args)
#define ATABUSIORESET _IO('A', 51) /* reset ATA bus */
struct atabusiodetach_args {
int at_dev; /* device to detach; -1 for wildcard */
};
#define ATABUSIODETACH _IOW('A', 52, struct atabusiodetach_args)
#endif /* _SYS_ATAIO_H_ */