1/* $NetBSD: ataio.h,v 1.9 2012/01/24 20:04:07 jakllsch 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#define ATACMD_LBA 0x00000008
30
31/* definitions for the return status (retsts) */
32#define ATACMD_OK 0x00
33#define ATACMD_TIMEOUT 0x01
34#define ATACMD_ERROR 0x02
35#define ATACMD_DF 0x03
36
37#define ATAIOCCOMMAND _IOWR('Q', 8, atareq_t)
38
39/*
40 * ATA bus IOCTL
41 */
42/* Scan bus for new devices. */
43struct atabusioscan_args {
44 int at_dev; /* device to scan, -1 for wildcard */
45};
46#define ATABUSIOSCAN _IOW('A', 50, struct atabusioscan_args)
47
48#define ATABUSIORESET _IO('A', 51) /* reset ATA bus */
49
50struct atabusiodetach_args {
51 int at_dev; /* device to detach; -1 for wildcard */
52};
53#define ATABUSIODETACH _IOW('A', 52, struct atabusiodetach_args)
54
55
56#endif /* _SYS_ATAIO_H_ */