NetBSD/sys/sys/ataio.h

57 lines
1.5 KiB
C

/* $NetBSD: ataio.h,v 1.9 2012/01/24 20:04:07 jakllsch 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 */
void * 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
#define ATACMD_LBA 0x00000008
/* 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_ */