1/* $NetBSD: ataio.h,v 1.8 2007/03/04 06:03:40 christos 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_ */ 57