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 | |
9 | typedef 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. */ |
43 | struct 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 | |
50 | struct 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_ */ |
57 | |