hdreg.h

linux得一些常用命令,以及linux环境下的c编程

#ifndef _LINUX_HDREG_H
#define _LINUX_HDREG_H

/*
 * This file contains some defines for the AT-hd-controller.
 * Various sources.  
 */

#define HD_IRQ 14			/* the standard disk interrupt */

/* ide.c has its own port definitions in "ide.h" */

/* Hd controller regs. Ref: IBM AT Bios-listing */
#define HD_DATA		0x1f0		/* _CTL when writing */
#define HD_ERROR	0x1f1		/* see err-bits */
#define HD_NSECTOR	0x1f2		/* nr of sectors to read/write */
#define HD_SECTOR	0x1f3		/* starting sector */
#define HD_LCYL		0x1f4		/* starting cylinder */
#define HD_HCYL		0x1f5		/* high byte of starting cyl */
#define HD_CURRENT	0x1f6		/* 101dhhhh , d=drive, hhhh=head */
#define HD_STATUS	0x1f7		/* see status-bits */
#define HD_FEATURE	HD_ERROR	/* same io address, read=error, write=feature */
#define HD_PRECOMP	HD_FEATURE	/* obsolete use of this port - predates IDE */
#define HD_COMMAND	HD_STATUS	/* same io address, read=status, write=cmd */

#define HD_CMD		0x3f6		/* used for resets */
#define HD_ALTSTATUS	0x3f6		/* same as HD_STATUS but doesn't clear irq */

/* remainder is shared between hd.c, ide.c, ide-cd.c, and the hdparm utility */

/* Bits of HD_STATUS */
#define ERR_STAT		0x01
#define INDEX_STAT		0x02
#define ECC_STAT		0x04	/* Corrected error */
#define DRQ_STAT		0x08
#define SEEK_STAT		0x10
#define WRERR_STAT		0x20
#define READY_STAT		0x40
#define BUSY_STAT		0x80

/* Bits for HD_ERROR */
#define MARK_ERR		0x01	/* Bad address mark */
#define TRK0_ERR		0x02	/* couldn't find track 0 */
#define ABRT_ERR		0x04	/* Command aborted */
#define MCR_ERR			0x08	/* media change request */
#define ID_ERR			0x10	/* ID field not found */
#define MC_ERR			0x20	/* media changed */
#define ECC_ERR			0x40	/* Uncorrectable ECC error */
#define BBD_ERR			0x80	/* pre-EIDE meaning:  block marked bad */
#define ICRC_ERR		0x80	/* new meaning:  CRC error during transfer */

/*
 * Command Header sizes for IOCTL commands
 *	HDIO_DRIVE_CMD, HDIO_DRIVE_TASK, and HDIO_DRIVE_TASKFILE
 */

#if 0
#include <asm/hdreg.h>
typedef ide_ioreg_t task_ioreg_t;
#else
typedef unsigned char task_ioreg_t;
#endif

#define HDIO_DRIVE_CMD_HDR_SIZE		4*sizeof(task_ioreg_t)
#define HDIO_DRIVE_TASK_HDR_SIZE	8*sizeof(task_ioreg_t)
#define HDIO_DRIVE_HOB_HDR_SIZE		8*sizeof(task_ioreg_t)

#define IDE_DRIVE_TASK_INVALID		-1
#define IDE_DRIVE_TASK_NO_DATA		0
#define IDE_DRIVE_TASK_SET_XFER		1

#define IDE_DRIVE_TASK_IN		2

#define IDE_DRIVE_TASK_OUT		3
#define IDE_DRIVE_TASK_RAW_WRITE	4

struct hd_drive_cmd_hdr {
	task_ioreg_t command;
	task_ioreg_t sector_number;
	task_ioreg_t feature;
	task_ioreg_t sector_count;
};

typedef struct hd_drive_task_hdr {
	task_ioreg_t data;
	task_ioreg_t feature;
	task_ioreg_t sector_count;
	task_ioreg_t sector_number;
	task_ioreg_t low_cylinder;
	task_ioreg_t high_cylinder;
	task_ioreg_t device_head;
	task_ioreg_t command;
} task_struct_t;

typedef struct hd_drive_hob_hdr {
	task_ioreg_t data;
	task_ioreg_t feature;
	task_ioreg_t sector_count;
	task_ioreg_t sector_number;
	task_ioreg_t low_cylinder;
	task_ioreg_t high_cylinder;
	task_ioreg_t device_head;
	task_ioreg_t control;
} hob_struct_t;

typedef union ide_reg_valid_s {
	unsigned all				: 16;
	struct {
		unsigned data			: 1;
		unsigned error_feature		: 1;
		unsigned sector			: 1;
		unsigned nsector		: 1;
		unsigned lcyl			: 1;
		unsigned hcyl			: 1;
		unsigned select			: 1;
		unsigned status_command		: 1;

		unsigned data_hob		: 1;
		unsigned error_feature_hob	: 1;
		unsigned sector_hob		: 1;
		unsigned nsector_hob		: 1;
		unsigned lcyl_hob		: 1;
		unsigned hcyl_hob		: 1;
		unsigned select_hob		: 1;
		unsigned control_hob		: 1;
	} b;
} ide_reg_valid_t;

/*
 * Define standard taskfile in/out register
 */
#define IDE_TASKFILE_STD_OUT_FLAGS	0xFE
#define IDE_TASKFILE_STD_IN_FLAGS	0xFE
#define IDE_HOB_STD_OUT_FLAGS		0xC0
#define IDE_HOB_STD_IN_FLAGS		0xC0

typedef struct ide_task_request_s {
	task_ioreg_t	io_ports[8];
	task_ioreg_t	hob_ports[8];
	ide_reg_valid_t	out_flags;
	ide_reg_valid_t	in_flags;
	int		data_phase;
	int		req_cmd;
	unsigned long	out_size;
	unsigned long	in_size;
} ide_task_request_t;

typedef struct ide_ioctl_request_s {
	ide_task_request_t	*task_request;
	unsigned char		*out_buffer;
	unsigned char		*in_buffer;
} ide_ioctl_request_t;

#define TASKFILE_INVALID		0x7fff
#define TASKFILE_48			0x8000

#define TASKFILE_NO_DATA		0x0000

#define TASKFILE_IN			0x0001
#define TASKFILE_MULTI_IN		0x0002

#define TASKFILE_OUT			0x0004
#define TASKFILE_MULTI_OUT		0x0008
#define TASKFILE_IN_OUT			0x0010

#define TASKFILE_IN_DMA			0x0020
#define TASKFILE_OUT_DMA		0x0040
#define TASKFILE_IN_DMAQ		0x0080
#define TASKFILE_OUT_DMAQ		0x0100

#define TASKFILE_P_IN			0x0200
#define TASKFILE_P_OUT			0x0400
#define TASKFILE_P_IN_DMA		0x0800
#define TASKFILE_P_OUT_DMA		0x1000
#define TASKFILE_P_IN_DMAQ		0x2000
#define TASKFILE_P_OUT_DMAQ		0x4000

/* ATA/ATAPI Commands pre T13 Spec */
#define WIN_NOP				0x00
#define CFA_REQ_EXT_ERROR_CODE		0x03 /* CFA Request Extended Error Code */
#define WIN_SRST			0x08 /* ATAPI soft reset command */
#define WIN_DEVICE_RESET		0x08
#define WIN_RESTORE			0x10
#define WIN_READ			0x20 /* 28-Bit */
#define WIN_READ_EXT			0x24 /* 48-Bit */
#define WIN_READDMA_EXT			0x25 /* 48-Bit */
#define WIN_READDMA_QUEUED_EXT		0x26 /* 48-Bit */
#define WIN_READ_NATIVE_MAX_EXT		0x27 /* 48-Bit */
#define WIN_MULTREAD_EXT		0x29 /* 48-Bit */
#define WIN_WRITE			0x30 /* 28-Bit */
#define WIN_WRITE_EXT			0x34 /* 48-Bit */
#define WIN_WRITEDMA_EXT		0x35 /* 48-Bit */
#define WIN_WRITEDMA_QUEUED_EXT		0x36 /* 48-Bit */
#define WIN_SET_MAX_EXT			0x37 /* 48-Bit */
#define CFA_WRITE_SECT_WO_ERASE		0x38 /* CFA Write Sectors without erase */
#define WIN_MULTWRITE_EXT		0x39 /* 48-Bit */
#define WIN_WRITE_VERIFY		0x3C /* 28-Bit */
#define WIN_VERIFY			0x40 /* 28-Bit - Read Verify Sectors */
#define WIN_VERIFY_EXT			0x42 /* 48-Bit */
#define WIN_FORMAT			0x50
#define WIN_INIT			0x60
#define WIN_SEEK			0x70
#define CFA_TRANSLATE_SECTOR		0x87 /* CFA Translate Sector */
#define WIN_DIAGNOSE			0x90
#define WIN_SPECIFY			0x91 /* set drive geometry translation */
#define WIN_DOWNLOAD_MICROCODE		0x92
#define WIN_STANDBYNOW2			0x94
#define WIN_SETIDLE2			0x97
#define WIN_CHECKPOWERMODE2		0x98
#define WIN_SLEEPNOW2			0x99
#define WIN_PACKETCMD			0xA0 /* Send a packet command. */
#define WIN_PIDENTIFY			0xA1 /* identify ATAPI device	*/
#define WIN_QUEUED_SERVICE		0xA2
#define WIN_SMART			0xB0 /* self-monitoring and reporting */
#define CFA_ERASE_SECTORS       	0xC0
#define WIN_MULTREAD			0xC4 /* read sectors using multiple mode*/
#define WIN_MULTWRITE			0xC5 /* write sectors using multiple mode */
#define WIN_SETMULT			0xC6 /* enable/disable multiple mode */
#define WIN_READDMA_QUEUED		0xC7 /* read sectors using Queued DMA transfers */
#define WIN_READDMA			0xC8 /* read sectors using DMA transfers */
#define WIN_WRITEDMA			0xCA /* write sectors using DMA transfers */
#define WIN_WRITEDMA_QUEUED		0xCC /* write sectors using Queued DMA transfers */
#define CFA_WRITE_MULTI_WO_ERASE	0xCD /* CFA Write multiple without erase */
#define WIN_GETMEDIASTATUS		0xDA	
#define WIN_DOORLOCK			0xDE /* lock door on removable drives */
#define WIN_DOORUNLOCK			0xDF /* unlock door on removable drives */
#define WIN_STANDBYNOW1			0xE0
#define WIN_IDLEIMMEDIATE		0xE1 /* force drive to become "ready" */
#define WIN_STANDBY             	0xE2 /* Set device in Standby Mode */
#define WIN_SETIDLE1			0xE3
#define WIN_READ_BUFFER			0xE4 /* force read only 1 sector */
#define WIN_CHECKPOWERMODE1		0xE5
#define WIN_SLEEPNOW1			0xE6
#define WIN_FLUSH_CACHE			0xE7
#define WIN_WRITE_BUFFER		0xE8 /* force write only 1 sector */
#define WIN_FLUSH_CACHE_EXT		0xEA /* 48-Bit */
#define WIN_IDENTIFY			0xEC /* ask drive to identify itself	*/
#define WIN_MEDIAEJECT			0xED
#define WIN_IDENTIFY_DMA		0xEE /* same as WIN_IDENTIFY, but DMA */
#define WIN_SETFEATURES			0xEF /* set special drive features */
#define EXABYTE_ENABLE_NEST		0xF0
#define WIN_SECURITY_SET_PASS		0xF1
#define WIN_SECURITY_UNLOCK		0xF2
#define WIN_SECURITY_ERASE_PREPARE	0xF3
#define WIN_SECURITY_ERASE_UNIT		0xF4
#define WIN_SECURITY_FREEZE_LOCK	0xF5
#define WIN_SECURITY_DISABLE		0xF6
#define WIN_READ_NATIVE_MAX		0xF8 /* return the native maximum address */
#define WIN_SET_MAX			0xF9
#define DISABLE_SEAGATE			0xFB

/* WIN_SMART sub-commands */

#define SMART_READ_VALUES		0xD0
#define SMART_READ_THRESHOLDS		0xD1
#define SMART_AUTOSAVE			0xD2
#define SMART_SAVE			0xD3
#define SMART_IMMEDIATE_OFFLINE		0xD4
#define SMART_READ_LOG_SECTOR		0xD5
#define SMART_WRITE_LOG_SECTOR		0xD6
#define SMART_WRITE_THRESHOLDS		0xD7
#define SMART_ENABLE			0xD8
#define SMART_DISABLE			0xD9
#define SMART_STATUS			0xDA
#define SMART_AUTO_OFFLINE		0xDB

/* Password used in TF4 & TF5 executing SMART commands */

#define SMART_LCYL_PASS			0x4F
#define SMART_HCYL_PASS			0xC2
		
/* WIN_SETFEATURES sub-commands */

#define SETFEATURES_EN_WCACHE	0x02	/* Enable write cache */
#define SETFEATURES_XFER	0x03	/* Set transfer mode */
#	define XFER_UDMA_7	0x47	/* 0100|0111 */
#	define XFER_UDMA_6	0x46	/* 0100|0110 */
#	define XFER_UDMA_5	0x45	/* 0100|0101 */
#	define XFER_UDMA_4	0x44	/* 0100|0100 */
#	define XFER_UDMA_3	0x43	/* 0100|0011 */
#	define XFER_UDMA_2	0x42	/* 0100|0010 */
#	define XFER_UDMA_1	0x41	/* 0100|0001 */
#	define XFER_UDMA_0	0x40	/* 0100|0000 */
#	define XFER_MW_DMA_2	0x22	/* 0010|0010 */
#	define XFER_MW_DMA_1	0x21	/* 0010|0001 */
#	define XFER_MW_DMA_0	0x20	/* 0010|0000 */
#	define XFER_SW_DMA_2	0x12	/* 0001|0010 */
#	define XFER_SW_DMA_1	0x11	/* 0001|0001 */
#	define XFER_SW_DMA_0	0x10	/* 0001|0000 */
#	define XFER_PIO_4	0x0C	/* 0000|1100 */
#	define XFER_PIO_3	0x0B	/* 0000|1011 */
#	define XFER_PIO_2	0x0A	/* 0000|1010 */
#	define XFER_PIO_1	0x09	/* 0000|1001 */
#	define XFER_PIO_0	0x08	/* 0000|1000 */
#	define XFER_PIO_SLOW	0x00	/* 0000|0000 */
#define SETFEATURES_DIS_DEFECT	0x04	/* Disable Defect Management */
#define SETFEATURES_EN_APM	0x05	/* Enable advanced power management */
#define SETFEATURES_DIS_MSN	0x31	/* Disable Media Status Notification */
#define SETFEATURES_EN_AAM	0x42	/* Enable Automatic Acoustic Management */
#define SETFEATURES_DIS_RLA	0x55	/* Disable read look-ahead feature */
#define SETFEATURES_EN_RI	0x5D	/* Enable release interrupt */
#define SETFEATURES_EN_SI	0x5E	/* Enable SERVICE interrupt */
#define SETFEATURES_DIS_RPOD	0x66	/* Disable reverting to power on defaults */
#define SETFEATURES_DIS_WCACHE	0x82	/* Disable write cache */
#define SETFEATURES_EN_DEFECT	0x84	/* Enable Defect Management */
#define SETFEATURES_DIS_APM	0x85	/* Disable advanced power management */
#define SETFEATURES_EN_MSN	0x95	/* Enable Media Status Notification */
#define SETFEATURES_EN_RLA	0xAA	/* Enable read look-ahead feature */
#define SETFEATURES_PREFETCH	0xAB	/* Sets drive prefetch value */
#define SETFEATURES_DIS_AAM	0xC2	/* Disable Automatic Acoustic Management */
#define SETFEATURES_EN_RPOD	0xCC	/* Enable reverting to power on defaults */
#define SETFEATURES_DIS_RI	0xDD	/* Disable release interrupt */
#define SETFEATURES_DIS_SI	0xDE	/* Disable SERVICE interrupt */

/* WIN_SECURITY sub-commands */

#define SECURITY_SET_PASSWORD		0xBA
#define SECURITY_UNLOCK			0xBB
#define SECURITY_ERASE_PREPARE		0xBC
#define SECURITY_ERASE_UNIT		0xBD
#define SECURITY_FREEZE_LOCK		0xBE
#define SECURITY_DISABLE_PASSWORD	0xBF

struct hd_geometry {
      unsigned char heads;
      unsigned char sectors;
      unsigned short cylinders;
      unsigned long start;
};

/* BIG GEOMETRY */
struct hd_big_geometry {