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hdreg.h (22702B) - Raw


      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 #ifndef _LINUX_HDREG_H
      3 #define _LINUX_HDREG_H
      4 
      5 #include <linux/types.h>
      6 
      7 /*
      8  * Command Header sizes for IOCTL commands
      9  */
     10 
     11 #define HDIO_DRIVE_CMD_HDR_SIZE		(4 * sizeof(__u8))
     12 #define HDIO_DRIVE_HOB_HDR_SIZE		(8 * sizeof(__u8))
     13 #define HDIO_DRIVE_TASK_HDR_SIZE	(8 * sizeof(__u8))
     14 
     15 #define IDE_DRIVE_TASK_NO_DATA		0
     16 #define IDE_DRIVE_TASK_INVALID		-1
     17 #define IDE_DRIVE_TASK_SET_XFER		1
     18 #define IDE_DRIVE_TASK_IN		2
     19 #define IDE_DRIVE_TASK_OUT		3
     20 #define IDE_DRIVE_TASK_RAW_WRITE	4
     21 
     22 /*
     23  * Define standard taskfile in/out register
     24  */
     25 #define IDE_TASKFILE_STD_IN_FLAGS	0xFE
     26 #define IDE_HOB_STD_IN_FLAGS		0x3C
     27 #define IDE_TASKFILE_STD_OUT_FLAGS	0xFE
     28 #define IDE_HOB_STD_OUT_FLAGS		0x3C
     29 
     30 typedef unsigned char task_ioreg_t;
     31 typedef unsigned long sata_ioreg_t;
     32 
     33 typedef union ide_reg_valid_s {
     34 	unsigned all				: 16;
     35 	struct {
     36 		unsigned data			: 1;
     37 		unsigned error_feature		: 1;
     38 		unsigned sector			: 1;
     39 		unsigned nsector		: 1;
     40 		unsigned lcyl			: 1;
     41 		unsigned hcyl			: 1;
     42 		unsigned select			: 1;
     43 		unsigned status_command		: 1;
     44 
     45 		unsigned data_hob		: 1;
     46 		unsigned error_feature_hob	: 1;
     47 		unsigned sector_hob		: 1;
     48 		unsigned nsector_hob		: 1;
     49 		unsigned lcyl_hob		: 1;
     50 		unsigned hcyl_hob		: 1;
     51 		unsigned select_hob		: 1;
     52 		unsigned control_hob		: 1;
     53 	} b;
     54 } ide_reg_valid_t;
     55 
     56 typedef struct ide_task_request_s {
     57 	__u8		io_ports[8];
     58 	__u8		hob_ports[8]; /* bytes 6 and 7 are unused */
     59 	ide_reg_valid_t	out_flags;
     60 	ide_reg_valid_t	in_flags;
     61 	int		data_phase;
     62 	int		req_cmd;
     63 	unsigned long	out_size;
     64 	unsigned long	in_size;
     65 } ide_task_request_t;
     66 
     67 typedef struct ide_ioctl_request_s {
     68 	ide_task_request_t	*task_request;
     69 	unsigned char		*out_buffer;
     70 	unsigned char		*in_buffer;
     71 } ide_ioctl_request_t;
     72 
     73 struct hd_drive_cmd_hdr {
     74 	__u8 command;
     75 	__u8 sector_number;
     76 	__u8 feature;
     77 	__u8 sector_count;
     78 };
     79 
     80 typedef struct hd_drive_task_hdr {
     81 	__u8 data;
     82 	__u8 feature;
     83 	__u8 sector_count;
     84 	__u8 sector_number;
     85 	__u8 low_cylinder;
     86 	__u8 high_cylinder;
     87 	__u8 device_head;
     88 	__u8 command;
     89 } task_struct_t;
     90 
     91 typedef struct hd_drive_hob_hdr {
     92 	__u8 data;
     93 	__u8 feature;
     94 	__u8 sector_count;
     95 	__u8 sector_number;
     96 	__u8 low_cylinder;
     97 	__u8 high_cylinder;
     98 	__u8 device_head;
     99 	__u8 control;
    100 } hob_struct_t;
    101 
    102 #define TASKFILE_NO_DATA		0x0000
    103 
    104 #define TASKFILE_IN			0x0001
    105 #define TASKFILE_MULTI_IN		0x0002
    106 
    107 #define TASKFILE_OUT			0x0004
    108 #define TASKFILE_MULTI_OUT		0x0008
    109 #define TASKFILE_IN_OUT			0x0010
    110 
    111 #define TASKFILE_IN_DMA			0x0020
    112 #define TASKFILE_OUT_DMA		0x0040
    113 #define TASKFILE_IN_DMAQ		0x0080
    114 #define TASKFILE_OUT_DMAQ		0x0100
    115 
    116 #define TASKFILE_P_IN			0x0200
    117 #define TASKFILE_P_OUT			0x0400
    118 #define TASKFILE_P_IN_DMA		0x0800
    119 #define TASKFILE_P_OUT_DMA		0x1000
    120 #define TASKFILE_P_IN_DMAQ		0x2000
    121 #define TASKFILE_P_OUT_DMAQ		0x4000
    122 #define TASKFILE_48			0x8000
    123 #define TASKFILE_INVALID		0x7fff
    124 
    125 /* ATA/ATAPI Commands pre T13 Spec */
    126 #define WIN_NOP				0x00
    127 /*
    128  *	0x01->0x02 Reserved
    129  */
    130 #define CFA_REQ_EXT_ERROR_CODE		0x03 /* CFA Request Extended Error Code */
    131 /*
    132  *	0x04->0x07 Reserved
    133  */
    134 #define WIN_SRST			0x08 /* ATAPI soft reset command */
    135 #define WIN_DEVICE_RESET		0x08
    136 /*
    137  *	0x09->0x0F Reserved
    138  */
    139 #define WIN_RECAL			0x10
    140 #define WIN_RESTORE			WIN_RECAL
    141 /*
    142  *	0x10->0x1F Reserved
    143  */
    144 #define WIN_READ			0x20 /* 28-Bit */
    145 #define WIN_READ_ONCE			0x21 /* 28-Bit without retries */
    146 #define WIN_READ_LONG			0x22 /* 28-Bit */
    147 #define WIN_READ_LONG_ONCE		0x23 /* 28-Bit without retries */
    148 #define WIN_READ_EXT			0x24 /* 48-Bit */
    149 #define WIN_READDMA_EXT			0x25 /* 48-Bit */
    150 #define WIN_READDMA_QUEUED_EXT		0x26 /* 48-Bit */
    151 #define WIN_READ_NATIVE_MAX_EXT		0x27 /* 48-Bit */
    152 /*
    153  *	0x28
    154  */
    155 #define WIN_MULTREAD_EXT		0x29 /* 48-Bit */
    156 /*
    157  *	0x2A->0x2F Reserved
    158  */
    159 #define WIN_WRITE			0x30 /* 28-Bit */
    160 #define WIN_WRITE_ONCE			0x31 /* 28-Bit without retries */
    161 #define WIN_WRITE_LONG			0x32 /* 28-Bit */
    162 #define WIN_WRITE_LONG_ONCE		0x33 /* 28-Bit without retries */
    163 #define WIN_WRITE_EXT			0x34 /* 48-Bit */
    164 #define WIN_WRITEDMA_EXT		0x35 /* 48-Bit */
    165 #define WIN_WRITEDMA_QUEUED_EXT		0x36 /* 48-Bit */
    166 #define WIN_SET_MAX_EXT			0x37 /* 48-Bit */
    167 #define CFA_WRITE_SECT_WO_ERASE		0x38 /* CFA Write Sectors without erase */
    168 #define WIN_MULTWRITE_EXT		0x39 /* 48-Bit */
    169 /*
    170  *	0x3A->0x3B Reserved
    171  */
    172 #define WIN_WRITE_VERIFY		0x3C /* 28-Bit */
    173 /*
    174  *	0x3D->0x3F Reserved
    175  */
    176 #define WIN_VERIFY			0x40 /* 28-Bit - Read Verify Sectors */
    177 #define WIN_VERIFY_ONCE			0x41 /* 28-Bit - without retries */
    178 #define WIN_VERIFY_EXT			0x42 /* 48-Bit */
    179 /*
    180  *	0x43->0x4F Reserved
    181  */
    182 #define WIN_FORMAT			0x50
    183 /*
    184  *	0x51->0x5F Reserved
    185  */
    186 #define WIN_INIT			0x60
    187 /*
    188  *	0x61->0x5F Reserved
    189  */
    190 #define WIN_SEEK			0x70 /* 0x70-0x7F Reserved */
    191 
    192 #define CFA_TRANSLATE_SECTOR		0x87 /* CFA Translate Sector */
    193 #define WIN_DIAGNOSE			0x90
    194 #define WIN_SPECIFY			0x91 /* set drive geometry translation */
    195 #define WIN_DOWNLOAD_MICROCODE		0x92
    196 #define WIN_STANDBYNOW2			0x94
    197 #define WIN_STANDBY2			0x96
    198 #define WIN_SETIDLE2			0x97
    199 #define WIN_CHECKPOWERMODE2		0x98
    200 #define WIN_SLEEPNOW2			0x99
    201 /*
    202  *	0x9A VENDOR
    203  */
    204 #define WIN_PACKETCMD			0xA0 /* Send a packet command. */
    205 #define WIN_PIDENTIFY			0xA1 /* identify ATAPI device	*/
    206 #define WIN_QUEUED_SERVICE		0xA2
    207 #define WIN_SMART			0xB0 /* self-monitoring and reporting */
    208 #define CFA_ERASE_SECTORS		0xC0
    209 #define WIN_MULTREAD			0xC4 /* read sectors using multiple mode*/
    210 #define WIN_MULTWRITE			0xC5 /* write sectors using multiple mode */
    211 #define WIN_SETMULT			0xC6 /* enable/disable multiple mode */
    212 #define WIN_READDMA_QUEUED		0xC7 /* read sectors using Queued DMA transfers */
    213 #define WIN_READDMA			0xC8 /* read sectors using DMA transfers */
    214 #define WIN_READDMA_ONCE		0xC9 /* 28-Bit - without retries */
    215 #define WIN_WRITEDMA			0xCA /* write sectors using DMA transfers */
    216 #define WIN_WRITEDMA_ONCE		0xCB /* 28-Bit - without retries */
    217 #define WIN_WRITEDMA_QUEUED		0xCC /* write sectors using Queued DMA transfers */
    218 #define CFA_WRITE_MULTI_WO_ERASE	0xCD /* CFA Write multiple without erase */
    219 #define WIN_GETMEDIASTATUS		0xDA
    220 #define WIN_ACKMEDIACHANGE		0xDB /* ATA-1, ATA-2 vendor */
    221 #define WIN_POSTBOOT			0xDC
    222 #define WIN_PREBOOT 			0xDD
    223 #define WIN_DOORLOCK			0xDE /* lock door on removable drives */
    224 #define WIN_DOORUNLOCK			0xDF /* unlock door on removable drives */
    225 #define WIN_STANDBYNOW1			0xE0
    226 #define WIN_IDLEIMMEDIATE		0xE1 /* force drive to become "ready" */
    227 #define WIN_STANDBY			0xE2 /* Set device in Standby Mode */
    228 #define WIN_SETIDLE1			0xE3
    229 #define WIN_READ_BUFFER			0xE4 /* force read only 1 sector */
    230 #define WIN_CHECKPOWERMODE1		0xE5
    231 #define WIN_SLEEPNOW1			0xE6
    232 #define WIN_FLUSH_CACHE			0xE7
    233 #define WIN_WRITE_BUFFER		0xE8 /* force write only 1 sector */
    234 #define WIN_WRITE_SAME			0xE9 /* read ata-2 to use */
    235 	/* SET_FEATURES 0x22 or 0xDD */
    236 #define WIN_FLUSH_CACHE_EXT		0xEA /* 48-Bit */
    237 #define WIN_IDENTIFY			0xEC /* ask drive to identify itself	*/
    238 #define WIN_MEDIAEJECT			0xED
    239 #define WIN_IDENTIFY_DMA		0xEE /* same as WIN_IDENTIFY, but DMA */
    240 #define WIN_SETFEATURES			0xEF /* set special drive features */
    241 #define EXABYTE_ENABLE_NEST		0xF0
    242 #define WIN_SECURITY_SET_PASS		0xF1
    243 #define WIN_SECURITY_UNLOCK		0xF2
    244 #define WIN_SECURITY_ERASE_PREPARE	0xF3
    245 #define WIN_SECURITY_ERASE_UNIT		0xF4
    246 #define WIN_SECURITY_FREEZE_LOCK	0xF5
    247 #define WIN_SECURITY_DISABLE		0xF6
    248 #define WIN_READ_NATIVE_MAX		0xF8 /* return the native maximum address */
    249 #define WIN_SET_MAX			0xF9
    250 #define DISABLE_SEAGATE			0xFB
    251 
    252 /* WIN_SMART sub-commands */
    253 
    254 #define SMART_READ_VALUES		0xD0
    255 #define SMART_READ_THRESHOLDS		0xD1
    256 #define SMART_AUTOSAVE			0xD2
    257 #define SMART_SAVE			0xD3
    258 #define SMART_IMMEDIATE_OFFLINE		0xD4
    259 #define SMART_READ_LOG_SECTOR		0xD5
    260 #define SMART_WRITE_LOG_SECTOR		0xD6
    261 #define SMART_WRITE_THRESHOLDS		0xD7
    262 #define SMART_ENABLE			0xD8
    263 #define SMART_DISABLE			0xD9
    264 #define SMART_STATUS			0xDA
    265 #define SMART_AUTO_OFFLINE		0xDB
    266 
    267 /* Password used in TF4 & TF5 executing SMART commands */
    268 
    269 #define SMART_LCYL_PASS			0x4F
    270 #define SMART_HCYL_PASS			0xC2
    271 
    272 /* WIN_SETFEATURES sub-commands */
    273 #define SETFEATURES_EN_8BIT	0x01	/* Enable 8-Bit Transfers */
    274 #define SETFEATURES_EN_WCACHE	0x02	/* Enable write cache */
    275 #define SETFEATURES_DIS_DEFECT	0x04	/* Disable Defect Management */
    276 #define SETFEATURES_EN_APM	0x05	/* Enable advanced power management */
    277 #define SETFEATURES_EN_SAME_R	0x22	/* for a region ATA-1 */
    278 #define SETFEATURES_DIS_MSN	0x31	/* Disable Media Status Notification */
    279 #define SETFEATURES_DIS_RETRY	0x33	/* Disable Retry */
    280 #define SETFEATURES_EN_AAM	0x42	/* Enable Automatic Acoustic Management */
    281 #define SETFEATURES_RW_LONG	0x44	/* Set Length of VS bytes */
    282 #define SETFEATURES_SET_CACHE	0x54	/* Set Cache segments to SC Reg. Val */
    283 #define SETFEATURES_DIS_RLA	0x55	/* Disable read look-ahead feature */
    284 #define SETFEATURES_EN_RI	0x5D	/* Enable release interrupt */
    285 #define SETFEATURES_EN_SI	0x5E	/* Enable SERVICE interrupt */
    286 #define SETFEATURES_DIS_RPOD	0x66	/* Disable reverting to power on defaults */
    287 #define SETFEATURES_DIS_ECC	0x77	/* Disable ECC byte count */
    288 #define SETFEATURES_DIS_8BIT	0x81	/* Disable 8-Bit Transfers */
    289 #define SETFEATURES_DIS_WCACHE	0x82	/* Disable write cache */
    290 #define SETFEATURES_EN_DEFECT	0x84	/* Enable Defect Management */
    291 #define SETFEATURES_DIS_APM	0x85	/* Disable advanced power management */
    292 #define SETFEATURES_EN_ECC	0x88	/* Enable ECC byte count */
    293 #define SETFEATURES_EN_MSN	0x95	/* Enable Media Status Notification */
    294 #define SETFEATURES_EN_RETRY	0x99	/* Enable Retry */
    295 #define SETFEATURES_EN_RLA	0xAA	/* Enable read look-ahead feature */
    296 #define SETFEATURES_PREFETCH	0xAB	/* Sets drive prefetch value */
    297 #define SETFEATURES_EN_REST	0xAC	/* ATA-1 */
    298 #define SETFEATURES_4B_RW_LONG	0xBB	/* Set Length of 4 bytes */
    299 #define SETFEATURES_DIS_AAM	0xC2	/* Disable Automatic Acoustic Management */
    300 #define SETFEATURES_EN_RPOD	0xCC	/* Enable reverting to power on defaults */
    301 #define SETFEATURES_DIS_RI	0xDD	/* Disable release interrupt ATAPI */
    302 #define SETFEATURES_EN_SAME_M	0xDD	/* for a entire device ATA-1 */
    303 #define SETFEATURES_DIS_SI	0xDE	/* Disable SERVICE interrupt ATAPI */
    304 
    305 /* WIN_SECURITY sub-commands */
    306 
    307 #define SECURITY_SET_PASSWORD		0xBA
    308 #define SECURITY_UNLOCK			0xBB
    309 #define SECURITY_ERASE_PREPARE		0xBC
    310 #define SECURITY_ERASE_UNIT		0xBD
    311 #define SECURITY_FREEZE_LOCK		0xBE
    312 #define SECURITY_DISABLE_PASSWORD	0xBF
    313 
    314 struct hd_geometry {
    315       unsigned char heads;
    316       unsigned char sectors;
    317       unsigned short cylinders;
    318       unsigned long start;
    319 };
    320 
    321 /* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x030n/0x031n */
    322 #define HDIO_GETGEO		0x0301	/* get device geometry */
    323 #define HDIO_GET_UNMASKINTR	0x0302	/* get current unmask setting */
    324 #define HDIO_GET_MULTCOUNT	0x0304	/* get current IDE blockmode setting */
    325 #define HDIO_GET_QDMA		0x0305	/* get use-qdma flag */
    326 
    327 #define HDIO_SET_XFER		0x0306  /* set transfer rate via proc */
    328 
    329 #define HDIO_OBSOLETE_IDENTITY	0x0307	/* OBSOLETE, DO NOT USE: returns 142 bytes */
    330 #define HDIO_GET_KEEPSETTINGS	0x0308	/* get keep-settings-on-reset flag */
    331 #define HDIO_GET_32BIT		0x0309	/* get current io_32bit setting */
    332 #define HDIO_GET_NOWERR		0x030a	/* get ignore-write-error flag */
    333 #define HDIO_GET_DMA		0x030b	/* get use-dma flag */
    334 #define HDIO_GET_NICE		0x030c	/* get nice flags */
    335 #define HDIO_GET_IDENTITY	0x030d	/* get IDE identification info */
    336 #define HDIO_GET_WCACHE		0x030e	/* get write cache mode on|off */
    337 #define HDIO_GET_ACOUSTIC	0x030f	/* get acoustic value */
    338 #define	HDIO_GET_ADDRESS	0x0310	/* */
    339 
    340 #define HDIO_GET_BUSSTATE	0x031a	/* get the bus state of the hwif */
    341 #define HDIO_TRISTATE_HWIF	0x031b	/* execute a channel tristate */
    342 #define HDIO_DRIVE_RESET	0x031c	/* execute a device reset */
    343 #define HDIO_DRIVE_TASKFILE	0x031d	/* execute raw taskfile */
    344 #define HDIO_DRIVE_TASK		0x031e	/* execute task and special drive command */
    345 #define HDIO_DRIVE_CMD		0x031f	/* execute a special drive command */
    346 #define HDIO_DRIVE_CMD_AEB	HDIO_DRIVE_TASK
    347 
    348 /* hd/ide ctl's that pass (arg) non-ptr values are numbered 0x032n/0x033n */
    349 #define HDIO_SET_MULTCOUNT	0x0321	/* change IDE blockmode */
    350 #define HDIO_SET_UNMASKINTR	0x0322	/* permit other irqs during I/O */
    351 #define HDIO_SET_KEEPSETTINGS	0x0323	/* keep ioctl settings on reset */
    352 #define HDIO_SET_32BIT		0x0324	/* change io_32bit flags */
    353 #define HDIO_SET_NOWERR		0x0325	/* change ignore-write-error flag */
    354 #define HDIO_SET_DMA		0x0326	/* change use-dma flag */
    355 #define HDIO_SET_PIO_MODE	0x0327	/* reconfig interface to new speed */
    356 #define HDIO_SCAN_HWIF		0x0328	/* register and (re)scan interface */
    357 #define HDIO_UNREGISTER_HWIF	0x032a  /* unregister interface */
    358 #define HDIO_SET_NICE		0x0329	/* set nice flags */
    359 #define HDIO_SET_WCACHE		0x032b	/* change write cache enable-disable */
    360 #define HDIO_SET_ACOUSTIC	0x032c	/* change acoustic behavior */
    361 #define HDIO_SET_BUSSTATE	0x032d	/* set the bus state of the hwif */
    362 #define HDIO_SET_QDMA		0x032e	/* change use-qdma flag */
    363 #define HDIO_SET_ADDRESS	0x032f	/* change lba addressing modes */
    364 
    365 /* bus states */
    366 enum {
    367 	BUSSTATE_OFF = 0,
    368 	BUSSTATE_ON,
    369 	BUSSTATE_TRISTATE
    370 };
    371 
    372 /* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x033n/0x033n */
    373 /* 0x330 is reserved - used to be HDIO_GETGEO_BIG */
    374 /* 0x331 is reserved - used to be HDIO_GETGEO_BIG_RAW */
    375 /* 0x338 is reserved - used to be HDIO_SET_IDE_SCSI */
    376 /* 0x339 is reserved - used to be HDIO_SET_SCSI_IDE */
    377 
    378 #define __NEW_HD_DRIVE_ID
    379 
    380 /*
    381  * Structure returned by HDIO_GET_IDENTITY, as per ANSI NCITS ATA6 rev.1b spec.
    382  *
    383  * If you change something here, please remember to update fix_driveid() in
    384  * ide/probe.c.
    385  */
    386 struct hd_driveid {
    387 	unsigned short	config;		/* lots of obsolete bit flags */
    388 	unsigned short	cyls;		/* Obsolete, "physical" cyls */
    389 	unsigned short	reserved2;	/* reserved (word 2) */
    390 	unsigned short	heads;		/* Obsolete, "physical" heads */
    391 	unsigned short	track_bytes;	/* unformatted bytes per track */
    392 	unsigned short	sector_bytes;	/* unformatted bytes per sector */
    393 	unsigned short	sectors;	/* Obsolete, "physical" sectors per track */
    394 	unsigned short	vendor0;	/* vendor unique */
    395 	unsigned short	vendor1;	/* vendor unique */
    396 	unsigned short	vendor2;	/* Retired vendor unique */
    397 	unsigned char	serial_no[20];	/* 0 = not_specified */
    398 	unsigned short	buf_type;	/* Retired */
    399 	unsigned short	buf_size;	/* Retired, 512 byte increments
    400 					 * 0 = not_specified
    401 					 */
    402 	unsigned short	ecc_bytes;	/* for r/w long cmds; 0 = not_specified */
    403 	unsigned char	fw_rev[8];	/* 0 = not_specified */
    404 	unsigned char	model[40];	/* 0 = not_specified */
    405 	unsigned char	max_multsect;	/* 0=not_implemented */
    406 	unsigned char	vendor3;	/* vendor unique */
    407 	unsigned short	dword_io;	/* 0=not_implemented; 1=implemented */
    408 	unsigned char	vendor4;	/* vendor unique */
    409 	unsigned char	capability;	/* (upper byte of word 49)
    410 					 *  3:	IORDYsup
    411 					 *  2:	IORDYsw
    412 					 *  1:	LBA
    413 					 *  0:	DMA
    414 					 */
    415 	unsigned short	reserved50;	/* reserved (word 50) */
    416 	unsigned char	vendor5;	/* Obsolete, vendor unique */
    417 	unsigned char	tPIO;		/* Obsolete, 0=slow, 1=medium, 2=fast */
    418 	unsigned char	vendor6;	/* Obsolete, vendor unique */
    419 	unsigned char	tDMA;		/* Obsolete, 0=slow, 1=medium, 2=fast */
    420 	unsigned short	field_valid;	/* (word 53)
    421 					 *  2:	ultra_ok	word  88
    422 					 *  1:	eide_ok		words 64-70
    423 					 *  0:	cur_ok		words 54-58
    424 					 */
    425 	unsigned short	cur_cyls;	/* Obsolete, logical cylinders */
    426 	unsigned short	cur_heads;	/* Obsolete, l heads */
    427 	unsigned short	cur_sectors;	/* Obsolete, l sectors per track */
    428 	unsigned short	cur_capacity0;	/* Obsolete, l total sectors on drive */
    429 	unsigned short	cur_capacity1;	/* Obsolete, (2 words, misaligned int)     */
    430 	unsigned char	multsect;	/* current multiple sector count */
    431 	unsigned char	multsect_valid;	/* when (bit0==1) multsect is ok */
    432 	unsigned int	lba_capacity;	/* Obsolete, total number of sectors */
    433 	unsigned short	dma_1word;	/* Obsolete, single-word dma info */
    434 	unsigned short	dma_mword;	/* multiple-word dma info */
    435 	unsigned short  eide_pio_modes; /* bits 0:mode3 1:mode4 */
    436 	unsigned short  eide_dma_min;	/* min mword dma cycle time (ns) */
    437 	unsigned short  eide_dma_time;	/* recommended mword dma cycle time (ns) */
    438 	unsigned short  eide_pio;       /* min cycle time (ns), no IORDY  */
    439 	unsigned short  eide_pio_iordy; /* min cycle time (ns), with IORDY */
    440 	unsigned short	words69_70[2];	/* reserved words 69-70
    441 					 * future command overlap and queuing
    442 					 */
    443 	unsigned short	words71_74[4];	/* reserved words 71-74
    444 					 * for IDENTIFY PACKET DEVICE command
    445 					 */
    446 	unsigned short  queue_depth;	/* (word 75)
    447 					 * 15:5	reserved
    448 					 *  4:0	Maximum queue depth -1
    449 					 */
    450 	unsigned short  words76_79[4];	/* reserved words 76-79 */
    451 	unsigned short  major_rev_num;	/* (word 80) */
    452 	unsigned short  minor_rev_num;	/* (word 81) */
    453 	unsigned short  command_set_1;	/* (word 82) supported
    454 					 * 15:	Obsolete
    455 					 * 14:	NOP command
    456 					 * 13:	READ_BUFFER
    457 					 * 12:	WRITE_BUFFER
    458 					 * 11:	Obsolete
    459 					 * 10:	Host Protected Area
    460 					 *  9:	DEVICE Reset
    461 					 *  8:	SERVICE Interrupt
    462 					 *  7:	Release Interrupt
    463 					 *  6:	look-ahead
    464 					 *  5:	write cache
    465 					 *  4:	PACKET Command
    466 					 *  3:	Power Management Feature Set
    467 					 *  2:	Removable Feature Set
    468 					 *  1:	Security Feature Set
    469 					 *  0:	SMART Feature Set
    470 					 */
    471 	unsigned short  command_set_2;	/* (word 83)
    472 					 * 15:	Shall be ZERO
    473 					 * 14:	Shall be ONE
    474 					 * 13:	FLUSH CACHE EXT
    475 					 * 12:	FLUSH CACHE
    476 					 * 11:	Device Configuration Overlay
    477 					 * 10:	48-bit Address Feature Set
    478 					 *  9:	Automatic Acoustic Management
    479 					 *  8:	SET MAX security
    480 					 *  7:	reserved 1407DT PARTIES
    481 					 *  6:	SetF sub-command Power-Up
    482 					 *  5:	Power-Up in Standby Feature Set
    483 					 *  4:	Removable Media Notification
    484 					 *  3:	APM Feature Set
    485 					 *  2:	CFA Feature Set
    486 					 *  1:	READ/WRITE DMA QUEUED
    487 					 *  0:	Download MicroCode
    488 					 */
    489 	unsigned short  cfsse;		/* (word 84)
    490 					 * cmd set-feature supported extensions
    491 					 * 15:	Shall be ZERO
    492 					 * 14:	Shall be ONE
    493 					 * 13:6	reserved
    494 					 *  5:	General Purpose Logging
    495 					 *  4:	Streaming Feature Set
    496 					 *  3:	Media Card Pass Through
    497 					 *  2:	Media Serial Number Valid
    498 					 *  1:	SMART selt-test supported
    499 					 *  0:	SMART error logging
    500 					 */
    501 	unsigned short  cfs_enable_1;	/* (word 85)
    502 					 * command set-feature enabled
    503 					 * 15:	Obsolete
    504 					 * 14:	NOP command
    505 					 * 13:	READ_BUFFER
    506 					 * 12:	WRITE_BUFFER
    507 					 * 11:	Obsolete
    508 					 * 10:	Host Protected Area
    509 					 *  9:	DEVICE Reset
    510 					 *  8:	SERVICE Interrupt
    511 					 *  7:	Release Interrupt
    512 					 *  6:	look-ahead
    513 					 *  5:	write cache
    514 					 *  4:	PACKET Command
    515 					 *  3:	Power Management Feature Set
    516 					 *  2:	Removable Feature Set
    517 					 *  1:	Security Feature Set
    518 					 *  0:	SMART Feature Set
    519 					 */
    520 	unsigned short  cfs_enable_2;	/* (word 86)
    521 					 * command set-feature enabled
    522 					 * 15:	Shall be ZERO
    523 					 * 14:	Shall be ONE
    524 					 * 13:	FLUSH CACHE EXT
    525 					 * 12:	FLUSH CACHE
    526 					 * 11:	Device Configuration Overlay
    527 					 * 10:	48-bit Address Feature Set
    528 					 *  9:	Automatic Acoustic Management
    529 					 *  8:	SET MAX security
    530 					 *  7:	reserved 1407DT PARTIES
    531 					 *  6:	SetF sub-command Power-Up
    532 					 *  5:	Power-Up in Standby Feature Set
    533 					 *  4:	Removable Media Notification
    534 					 *  3:	APM Feature Set
    535 					 *  2:	CFA Feature Set
    536 					 *  1:	READ/WRITE DMA QUEUED
    537 					 *  0:	Download MicroCode
    538 					 */
    539 	unsigned short  csf_default;	/* (word 87)
    540 					 * command set-feature default
    541 					 * 15:	Shall be ZERO
    542 					 * 14:	Shall be ONE
    543 					 * 13:6	reserved
    544 					 *  5:	General Purpose Logging enabled
    545 					 *  4:	Valid CONFIGURE STREAM executed
    546 					 *  3:	Media Card Pass Through enabled
    547 					 *  2:	Media Serial Number Valid
    548 					 *  1:	SMART selt-test supported
    549 					 *  0:	SMART error logging
    550 					 */
    551 	unsigned short  dma_ultra;	/* (word 88) */
    552 	unsigned short	trseuc;		/* time required for security erase */
    553 	unsigned short	trsEuc;		/* time required for enhanced erase */
    554 	unsigned short	CurAPMvalues;	/* current APM values */
    555 	unsigned short	mprc;		/* master password revision code */
    556 	unsigned short	hw_config;	/* hardware config (word 93)
    557 					 * 15:	Shall be ZERO
    558 					 * 14:	Shall be ONE
    559 					 * 13:
    560 					 * 12:
    561 					 * 11:
    562 					 * 10:
    563 					 *  9:
    564 					 *  8:
    565 					 *  7:
    566 					 *  6:
    567 					 *  5:
    568 					 *  4:
    569 					 *  3:
    570 					 *  2:
    571 					 *  1:
    572 					 *  0:	Shall be ONE
    573 					 */
    574 	unsigned short	acoustic;	/* (word 94)
    575 					 * 15:8	Vendor's recommended value
    576 					 *  7:0	current value
    577 					 */
    578 	unsigned short	msrqs;		/* min stream request size */
    579 	unsigned short	sxfert;		/* stream transfer time */
    580 	unsigned short	sal;		/* stream access latency */
    581 	unsigned int	spg;		/* stream performance granularity */
    582 	unsigned long long lba_capacity_2;/* 48-bit total number of sectors */
    583 	unsigned short	words104_125[22];/* reserved words 104-125 */
    584 	unsigned short	last_lun;	/* (word 126) */
    585 	unsigned short	word127;	/* (word 127) Feature Set
    586 					 * Removable Media Notification
    587 					 * 15:2	reserved
    588 					 *  1:0	00 = not supported
    589 					 *	01 = supported
    590 					 *	10 = reserved
    591 					 *	11 = reserved
    592 					 */
    593 	unsigned short	dlf;		/* (word 128)
    594 					 * device lock function
    595 					 * 15:9	reserved
    596 					 *  8	security level 1:max 0:high
    597 					 *  7:6	reserved
    598 					 *  5	enhanced erase
    599 					 *  4	expire
    600 					 *  3	frozen
    601 					 *  2	locked
    602 					 *  1	en/disabled
    603 					 *  0	capability
    604 					 */
    605 	unsigned short  csfo;		/*  (word 129)
    606 					 * current set features options
    607 					 * 15:4	reserved
    608 					 *  3:	auto reassign
    609 					 *  2:	reverting
    610 					 *  1:	read-look-ahead
    611 					 *  0:	write cache
    612 					 */
    613 	unsigned short	words130_155[26];/* reserved vendor words 130-155 */
    614 	unsigned short	word156;	/* reserved vendor word 156 */
    615 	unsigned short	words157_159[3];/* reserved vendor words 157-159 */
    616 	unsigned short	cfa_power;	/* (word 160) CFA Power Mode
    617 					 * 15 word 160 supported
    618 					 * 14 reserved
    619 					 * 13
    620 					 * 12
    621 					 * 11:0
    622 					 */
    623 	unsigned short	words161_175[15];/* Reserved for CFA */
    624 	unsigned short	words176_205[30];/* Current Media Serial Number */
    625 	unsigned short	words206_254[49];/* reserved words 206-254 */
    626 	unsigned short	integrity_word;	/* (word 255)
    627 					 * 15:8 Checksum
    628 					 *  7:0 Signature
    629 					 */
    630 };
    631 
    632 /*
    633  * IDE "nice" flags. These are used on a per drive basis to determine
    634  * when to be nice and give more bandwidth to the other devices which
    635  * share the same IDE bus.
    636  */
    637 #define IDE_NICE_DSC_OVERLAP	(0)	/* per the DSC overlap protocol */
    638 #define IDE_NICE_ATAPI_OVERLAP	(1)	/* not supported yet */
    639 #define IDE_NICE_1		(3)	/* when probably won't affect us much */
    640 #define IDE_NICE_0		(2)	/* when sure that it won't affect us */
    641 #define IDE_NICE_2		(4)	/* when we know it's on our expense */
    642 
    643 #endif	/* _LINUX_HDREG_H */