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