49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/* $OpenBSD: ataio.h,v 1.5 2003/09/26 21:43:32 miod Exp $ */
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/* $NetBSD: ataio.h,v 1.2 1998/11/23 22:58:23 kenh 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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caddr_t 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; /* 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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/* 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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typedef struct atagettrace {
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unsigned int buf_size; /* length of data buffer */
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void *buf; /* pointer to data buffer */
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unsigned int bytes_copied; /* number of bytes copied to buffer */
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unsigned int bytes_left; /* number of bytes left */
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} atagettrace_t;
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#define ATAIOGETTRACE _IOWR('Q', 27, struct atagettrace)
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#endif /* _SYS_ATAIO_H_ */
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