hdreg.h

linux得一些常用命令,以及linux环境下的c编程

	unsigned char heads;
	unsigned char sectors;
	unsigned int cylinders;
	unsigned long start;
};

/* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x030n/0x031n */
#define HDIO_GETGEO		0x0301	/* get device geometry */
#define HDIO_GET_UNMASKINTR	0x0302	/* get current unmask setting */
#define HDIO_GET_MULTCOUNT	0x0304	/* get current IDE blockmode setting */
#define HDIO_GET_QDMA		0x0305	/* get use-qdma flag */
#define HDIO_OBSOLETE_IDENTITY	0x0307	/* OBSOLETE, DO NOT USE: returns 142 bytes */
#define HDIO_GET_KEEPSETTINGS	0x0308	/* get keep-settings-on-reset flag */
#define HDIO_GET_32BIT		0x0309	/* get current io_32bit setting */
#define HDIO_GET_NOWERR		0x030a	/* get ignore-write-error flag */
#define HDIO_GET_DMA		0x030b	/* get use-dma flag */
#define HDIO_GET_NICE		0x030c	/* get nice flags */
#define HDIO_GET_IDENTITY	0x030d	/* get IDE identification info */
#define HDIO_GET_WCACHE		0x030e	/* get write cache mode on|off */
#define HDIO_GET_ACOUSTIC	0x030f	/* get acoustic value */
#define	HDIO_GET_ADDRESS	0x0310	/* */

#define HDIO_GET_BUSSTATE	0x031a	/* get the bus state of the hwif */
#define HDIO_TRISTATE_HWIF	0x031b	/* execute a channel tristate */
#define HDIO_DRIVE_RESET	0x031c	/* execute a device reset */
#define HDIO_DRIVE_TASKFILE	0x031d	/* execute raw taskfile */
#define HDIO_DRIVE_TASK		0x031e	/* execute task and special drive command */
#define HDIO_DRIVE_CMD		0x031f	/* execute a special drive command */

#define HDIO_DRIVE_CMD_AEB	HDIO_DRIVE_TASK

/* hd/ide ctl's that pass (arg) non-ptr values are numbered 0x032n/0x033n */
#define HDIO_SET_MULTCOUNT	0x0321	/* change IDE blockmode */
#define HDIO_SET_UNMASKINTR	0x0322	/* permit other irqs during I/O */
#define HDIO_SET_KEEPSETTINGS	0x0323	/* keep ioctl settings on reset */
#define HDIO_SET_32BIT		0x0324	/* change io_32bit flags */
#define HDIO_SET_NOWERR		0x0325	/* change ignore-write-error flag */
#define HDIO_SET_DMA		0x0326	/* change use-dma flag */
#define HDIO_SET_PIO_MODE	0x0327	/* reconfig interface to new speed */
#define HDIO_SCAN_HWIF		0x0328	/* register and (re)scan interface */
#define HDIO_SET_NICE		0x0329	/* set nice flags */
#define HDIO_UNREGISTER_HWIF	0x032a  /* unregister interface */
#define HDIO_SET_WCACHE		0x032b	/* change write cache enable-disable */
#define HDIO_SET_ACOUSTIC	0x032c	/* change acoustic behavior */
#define HDIO_SET_BUSSTATE	0x032d	/* set the bus state of the hwif */
#define HDIO_SET_QDMA		0x032e	/* change use-qdma flag */
#define HDIO_SET_ADDRESS	0x032f	/* change lba addressing modes */

/* bus states */
enum {
	BUSSTATE_OFF = 0,
	BUSSTATE_ON,
	BUSSTATE_TRISTATE
};

/* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x033n/0x033n */
#define HDIO_GETGEO_BIG		0x0330	/* */
#define HDIO_GETGEO_BIG_RAW	0x0331	/* */

#define __NEW_HD_DRIVE_ID
/* structure returned by HDIO_GET_IDENTITY,
 * as per ANSI NCITS ATA6 rev.1b spec
 */
struct hd_driveid {
	unsigned short	config;		/* lots of obsolete bit flags */
	unsigned short	cyls;		/* Obsolete, "physical" cyls */
	unsigned short	reserved2;	/* reserved (word 2) */
	unsigned short	heads;		/* Obsolete, "physical" heads */
	unsigned short	track_bytes;	/* unformatted bytes per track */
	unsigned short	sector_bytes;	/* unformatted bytes per sector */
	unsigned short	sectors;	/* Obsolete, "physical" sectors per track */
	unsigned short	vendor0;	/* vendor unique */
	unsigned short	vendor1;	/* vendor unique */
	unsigned short	vendor2;	/* Retired vendor unique */
	unsigned char	serial_no[20];	/* 0 = not_specified */
	unsigned short	buf_type;	/* Retired */
	unsigned short	buf_size;	/* Retired, 512 byte increments
					 * 0 = not_specified
					 */
	unsigned short	ecc_bytes;	/* for r/w long cmds; 0 = not_specified */
	unsigned char	fw_rev[8];	/* 0 = not_specified */
	unsigned char	model[40];	/* 0 = not_specified */
	unsigned char	max_multsect;	/* 0=not_implemented */
	unsigned char	vendor3;	/* vendor unique */
	unsigned short	dword_io;	/* 0=not_implemented; 1=implemented */
	unsigned char	vendor4;	/* vendor unique */
	unsigned char	capability;	/* (upper byte of word 49)
					 *  3:	IORDYsup
					 *  2:	IORDYsw
					 *  1:	LBA
					 *  0:	DMA
					 */
	unsigned short	reserved50;	/* reserved (word 50) */
	unsigned char	vendor5;	/* Obsolete, vendor unique */
	unsigned char	tPIO;		/* Obsolete, 0=slow, 1=medium, 2=fast */
	unsigned char	vendor6;	/* Obsolete, vendor unique */
	unsigned char	tDMA;		/* Obsolete, 0=slow, 1=medium, 2=fast */
	unsigned short	field_valid;	/* (word 53)
					 *  2:	ultra_ok	word  88
					 *  1:	eide_ok		words 64-70
					 *  0:	cur_ok		words 54-58
					 */
	unsigned short	cur_cyls;	/* Obsolete, logical cylinders */
	unsigned short	cur_heads;	/* Obsolete, l heads */
	unsigned short	cur_sectors;	/* Obsolete, l sectors per track */
	unsigned short	cur_capacity0;	/* Obsolete, l total sectors on drive */
	unsigned short	cur_capacity1;	/* Obsolete, (2 words, misaligned int)     */
	unsigned char	multsect;	/* current multiple sector count */
	unsigned char	multsect_valid;	/* when (bit0==1) multsect is ok */
	unsigned int	lba_capacity;	/* Obsolete, total number of sectors */
	unsigned short	dma_1word;	/* Obsolete, single-word dma info */
	unsigned short	dma_mword;	/* multiple-word dma info */
	unsigned short  eide_pio_modes; /* bits 0:mode3 1:mode4 */
	unsigned short  eide_dma_min;	/* min mword dma cycle time (ns) */
	unsigned short  eide_dma_time;	/* recommended mword dma cycle time (ns) */
	unsigned short  eide_pio;       /* min cycle time (ns), no IORDY  */
	unsigned short  eide_pio_iordy; /* min cycle time (ns), with IORDY */
	unsigned short	words69_70[2];	/* reserved words 69-70
					 * future command overlap and queuing
					 */
	/* HDIO_GET_IDENTITY currently returns only words 0 through 70 */
	unsigned short	words71_74[4];	/* reserved words 71-74
					 * for IDENTIFY PACKET DEVICE command
					 */
	unsigned short  queue_depth;	/* (word 75)
					 * 15:5	reserved
					 *  4:0	Maximum queue depth -1
					 */
	unsigned short  words76_79[4];	/* reserved words 76-79 */
	unsigned short  major_rev_num;	/* (word 80) */
	unsigned short  minor_rev_num;	/* (word 81) */
	unsigned short  command_set_1;	/* (word 82) supported
					 * 15:	Obsolete
					 * 14:	NOP command
					 * 13:	READ_BUFFER
					 * 12:	WRITE_BUFFER
					 * 11:	Obsolete
					 * 10:	Host Protected Area
					 *  9:	DEVICE Reset
					 *  8:	SERVICE Interrupt
					 *  7:	Release Interrupt
					 *  6:	look-ahead
					 *  5:	write cache
					 *  4:	PACKET Command
					 *  3:	Power Management Feature Set
					 *  2:	Removable Feature Set
					 *  1:	Security Feature Set
					 *  0:	SMART Feature Set
					 */
	unsigned short  command_set_2;	/* (word 83)
					 * 15:	Shall be ZERO
					 * 14:	Shall be ONE
					 * 13:	FLUSH CACHE EXT
					 * 12:	FLUSH CACHE
					 * 11:	Device Configuration Overlay
					 * 10:	48-bit Address Feature Set
					 *  9:	Automatic Acoustic Management
					 *  8:	SET MAX security
					 *  7:	reserved 1407DT PARTIES
					 *  6:	SetF sub-command Power-Up
					 *  5:	Power-Up in Standby Feature Set
					 *  4:	Removable Media Notification
					 *  3:	APM Feature Set
					 *  2:	CFA Feature Set
					 *  1:	READ/WRITE DMA QUEUED
					 *  0:	Download MicroCode
					 */
	unsigned short  cfsse;		/* (word 84)
					 * cmd set-feature supported extensions
					 * 15:	Shall be ZERO
					 * 14:	Shall be ONE
					 * 13:3	reserved
					 *  2:	Media Serial Number Valid
					 *  1:	SMART selt-test supported
					 *  0:	SMART error logging
					 */
	unsigned short  cfs_enable_1;	/* (word 85)
					 * command set-feature enabled
					 * 15:	Obsolete
					 * 14:	NOP command
					 * 13:	READ_BUFFER
					 * 12:	WRITE_BUFFER
					 * 11:	Obsolete
					 * 10:	Host Protected Area
					 *  9:	DEVICE Reset
					 *  8:	SERVICE Interrupt
					 *  7:	Release Interrupt
					 *  6:	look-ahead
					 *  5:	write cache
					 *  4:	PACKET Command
					 *  3:	Power Management Feature Set
					 *  2:	Removable Feature Set
					 *  1:	Security Feature Set
					 *  0:	SMART Feature Set
					 */
	unsigned short  cfs_enable_2;	/* (word 86)
					 * command set-feature enabled
					 * 15:	Shall be ZERO
					 * 14:	Shall be ONE
					 * 13:	FLUSH CACHE EXT
					 * 12:	FLUSH CACHE
					 * 11:	Device Configuration Overlay
					 * 10:	48-bit Address Feature Set
					 *  9:	Automatic Acoustic Management
					 *  8:	SET MAX security
					 *  7:	reserved 1407DT PARTIES
					 *  6:	SetF sub-command Power-Up
					 *  5:	Power-Up in Standby Feature Set
					 *  4:	Removable Media Notification
					 *  3:	APM Feature Set
					 *  2:	CFA Feature Set
					 *  1:	READ/WRITE DMA QUEUED
					 *  0:	Download MicroCode
					 */
	unsigned short  csf_default;	/* (word 87)
					 * command set-feature default
					 * 15:	Shall be ZERO
					 * 14:	Shall be ONE
					 * 13:3	reserved
					 *  2:	Media Serial Number Valid
					 *  1:	SMART selt-test supported
					 *  0:	SMART error logging
					 */
	unsigned short  dma_ultra;	/* (word 88) */
	unsigned short	word89;		/* reserved (word 89) */
	unsigned short	word90;		/* reserved (word 90) */
	unsigned short	CurAPMvalues;	/* current APM values */
	unsigned short	word92;		/* reserved (word 92) */
	unsigned short	hw_config;	/* hardware config (word 93)
					 * 15:
					 * 14:
					 * 13:
					 * 12:
					 * 11:
					 * 10:
					 *  9:
					 *  8:
					 *  7:
					 *  6:
					 *  5:
					 *  4:
					 *  3:
					 *  2:
					 *  1:
					 *  0:
					 */
	unsigned short	acoustic;	/* (word 94)
					 * 15:8	Vendor's recommended value
					 *  7:0	current value
					 */
	unsigned short	words95_99[5];	/* reserved words 95-99 */
#if 0
	unsigned short	words100_103[4]	;/* reserved words 100-103 */
#else
	unsigned long long lba_capacity_2;/* 48-bit total number of sectors */
#endif
	unsigned short	words104_125[22];/* reserved words 104-125 */
	unsigned short	last_lun;	/* (word 126) */
	unsigned short	word127;	/* (word 127) Feature Set
					 * Removable Media Notification
					 * 15:2	reserved
					 *  1:0	00 = not supported
					 *	01 = supported
					 *	10 = reserved
					 *	11 = reserved
					 */
	unsigned short	dlf;		/* (word 128)
					 * device lock function
					 * 15:9	reserved
					 *  8	security level 1:max 0:high
					 *  7:6	reserved
					 *  5	enhanced erase
					 *  4	expire
					 *  3	frozen
					 *  2	locked
					 *  1	en/disabled
					 *  0	capability
					 */
	unsigned short  csfo;		/*  (word 129)
					 * current set features options
					 * 15:4	reserved
					 *  3:	auto reassign
					 *  2:	reverting
					 *  1:	read-look-ahead
					 *  0:	write cache
					 */
	unsigned short	words130_155[26];/* reserved vendor words 130-155 */
	unsigned short	word156;	/* reserved vendor word 156 */
	unsigned short	words157_159[3];/* reserved vendor words 157-159 */
	unsigned short	cfa_power;	/* (word 160) CFA Power Mode
					 * 15 word 160 supported
					 * 14 reserved
					 * 13
					 * 12
					 * 11:0
					 */
	unsigned short	words161_175[14];/* Reserved for CFA */
	unsigned short	words176_205[31];/* Current Media Serial Number */
	unsigned short	words206_254[48];/* reserved words 206-254 */
	unsigned short	integrity_word;	/* (word 255)
					 * 15:8 Checksum
					 *  7:0 Signature
					 */
};

/*
 * IDE "nice" flags. These are used on a per drive basis to determine
 * when to be nice and give more bandwidth to the other devices which
 * share the same IDE bus.
 */
#define IDE_NICE_DSC_OVERLAP	(0)	/* per the DSC overlap protocol */
#define IDE_NICE_ATAPI_OVERLAP	(1)	/* not supported yet */
#define IDE_NICE_0		(2)	/* when sure that it won't affect us */
#define IDE_NICE_1		(3)	/* when probably won't affect us much */
#define IDE_NICE_2		(4)	/* when we know it's on our expense */

#ifdef __KERNEL__
/*
 * These routines are used for kernel command line parameters from main.c:
 */
#include <linux/config.h>

#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
int ide_register(int io_port, int ctl_port, int irq);
void ide_unregister(unsigned int);
#endif /* CONFIG_BLK_DEV_IDE || CONFIG_BLK_DEV_IDE_MODULE */

#endif  /* __KERNEL__ */

#endif	/* _LINUX_HDREG_H */