57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/* $NetBSD: ataio.h,v 1.9 2012/01/24 20:04:07 jakllsch Exp $ */
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#ifndef _SYS_ATAIO_H_
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#define _SYS_ATAIO_H_
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#include <sys/types.h>
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#include <sys/ioctl.h>
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typedef struct atareq {
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u_long flags; /* info about the request status and type */
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u_char command; /* command code */
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u_char features; /* feature modifier bits for command */
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u_char sec_count; /* sector count */
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u_char sec_num; /* sector number */
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u_char head; /* head number */
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u_short cylinder; /* cylinder/lba address */
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void * databuf; /* Pointer to I/O data buffer */
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u_long datalen; /* length of data buffer */
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int timeout; /* Command timeout */
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u_char retsts; /* the return status for the command */
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u_char error; /* error bits */
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} atareq_t;
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/* bit definitions for flags */
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#define ATACMD_READ 0x00000001
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#define ATACMD_WRITE 0x00000002
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#define ATACMD_READREG 0x00000004
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#define ATACMD_LBA 0x00000008
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/* definitions for the return status (retsts) */
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#define ATACMD_OK 0x00
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#define ATACMD_TIMEOUT 0x01
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#define ATACMD_ERROR 0x02
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#define ATACMD_DF 0x03
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#define ATAIOCCOMMAND _IOWR('Q', 8, atareq_t)
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/*
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* ATA bus IOCTL
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*/
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/* Scan bus for new devices. */
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struct atabusioscan_args {
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int at_dev; /* device to scan, -1 for wildcard */
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};
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#define ATABUSIOSCAN _IOW('A', 50, struct atabusioscan_args)
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#define ATABUSIORESET _IO('A', 51) /* reset ATA bus */
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struct atabusiodetach_args {
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int at_dev; /* device to detach; -1 for wildcard */
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};
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#define ATABUSIODETACH _IOW('A', 52, struct atabusiodetach_args)
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#endif /* _SYS_ATAIO_H_ */
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