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1  #ifndef _LINUX_HDREG_H
2  #define _LINUX_HDREG_H
3  
4  #include <linux/types.h>
5  
6  /*
7   * Command Header sizes for IOCTL commands
8   */
9  
10  #define HDIO_DRIVE_CMD_HDR_SIZE		(4 * sizeof(__u8))
11  #define HDIO_DRIVE_HOB_HDR_SIZE		(8 * sizeof(__u8))
12  #define HDIO_DRIVE_TASK_HDR_SIZE	(8 * sizeof(__u8))
13  
14  #define IDE_DRIVE_TASK_NO_DATA		0
15  #ifndef __KERNEL__
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  #endif
21  #define IDE_DRIVE_TASK_RAW_WRITE	4
22  
23  /*
24   * Define standard taskfile in/out register
25   */
26  #define IDE_TASKFILE_STD_IN_FLAGS	0xFE
27  #define IDE_HOB_STD_IN_FLAGS		0x3C
28  #ifndef __KERNEL__
29  #define IDE_TASKFILE_STD_OUT_FLAGS	0xFE
30  #define IDE_HOB_STD_OUT_FLAGS		0x3C
31  
32  typedef unsigned char task_ioreg_t;
33  typedef unsigned long sata_ioreg_t;
34  #endif
35  
36  typedef union ide_reg_valid_s {
37  	unsigned all				: 16;
38  	struct {
39  		unsigned data			: 1;
40  		unsigned error_feature		: 1;
41  		unsigned sector			: 1;
42  		unsigned nsector		: 1;
43  		unsigned lcyl			: 1;
44  		unsigned hcyl			: 1;
45  		unsigned select			: 1;
46  		unsigned status_command		: 1;
47  
48  		unsigned data_hob		: 1;
49  		unsigned error_feature_hob	: 1;
50  		unsigned sector_hob		: 1;
51  		unsigned nsector_hob		: 1;
52  		unsigned lcyl_hob		: 1;
53  		unsigned hcyl_hob		: 1;
54  		unsigned select_hob		: 1;
55  		unsigned control_hob		: 1;
56  	} b;
57  } ide_reg_valid_t;
58  
59  typedef struct ide_task_request_s {
60  	__u8		io_ports[8];
61  	__u8		hob_ports[8]; /* bytes 6 and 7 are unused */
62  	ide_reg_valid_t	out_flags;
63  	ide_reg_valid_t	in_flags;
64  	int		data_phase;
65  	int		req_cmd;
66  	unsigned long	out_size;
67  	unsigned long	in_size;
68  } ide_task_request_t;
69  
70  typedef struct ide_ioctl_request_s {
71  	ide_task_request_t	*task_request;
72  	unsigned char		*out_buffer;
73  	unsigned char		*in_buffer;
74  } ide_ioctl_request_t;
75  
76  struct hd_drive_cmd_hdr {
77  	__u8 command;
78  	__u8 sector_number;
79  	__u8 feature;
80  	__u8 sector_count;
81  };
82  
83  #ifndef __KERNEL__
84  typedef struct hd_drive_task_hdr {
85  	__u8 data;
86  	__u8 feature;
87  	__u8 sector_count;
88  	__u8 sector_number;
89  	__u8 low_cylinder;
90  	__u8 high_cylinder;
91  	__u8 device_head;
92  	__u8 command;
93  } task_struct_t;
94  
95  typedef struct hd_drive_hob_hdr {
96  	__u8 data;
97  	__u8 feature;
98  	__u8 sector_count;
99  	__u8 sector_number;
100  	__u8 low_cylinder;
101  	__u8 high_cylinder;
102  	__u8 device_head;
103  	__u8 control;
104  } hob_struct_t;
105  #endif
106  
107  #define TASKFILE_NO_DATA		0x0000
108  
109  #define TASKFILE_IN			0x0001
110  #define TASKFILE_MULTI_IN		0x0002
111  
112  #define TASKFILE_OUT			0x0004
113  #define TASKFILE_MULTI_OUT		0x0008
114  #define TASKFILE_IN_OUT			0x0010
115  
116  #define TASKFILE_IN_DMA			0x0020
117  #define TASKFILE_OUT_DMA		0x0040
118  #define TASKFILE_IN_DMAQ		0x0080
119  #define TASKFILE_OUT_DMAQ		0x0100
120  
121  #ifndef __KERNEL__
122  #define TASKFILE_P_IN			0x0200
123  #define TASKFILE_P_OUT			0x0400
124  #define TASKFILE_P_IN_DMA		0x0800
125  #define TASKFILE_P_OUT_DMA		0x1000
126  #define TASKFILE_P_IN_DMAQ		0x2000
127  #define TASKFILE_P_OUT_DMAQ		0x4000
128  #define TASKFILE_48			0x8000
129  #define TASKFILE_INVALID		0x7fff
130  #endif
131  
132  #ifndef __KERNEL__
133  /* ATA/ATAPI Commands pre T13 Spec */
134  #define WIN_NOP				0x00
135  /*
136   *	0x01->0x02 Reserved
137   */
138  #define CFA_REQ_EXT_ERROR_CODE		0x03 /* CFA Request Extended Error Code */
139  /*
140   *	0x04->0x07 Reserved
141   */
142  #define WIN_SRST			0x08 /* ATAPI soft reset command */
143  #define WIN_DEVICE_RESET		0x08
144  /*
145   *	0x09->0x0F Reserved
146   */
147  #define WIN_RECAL			0x10
148  #define WIN_RESTORE			WIN_RECAL
149  /*
150   *	0x10->0x1F Reserved
151   */
152  #define WIN_READ			0x20 /* 28-Bit */
153  #define WIN_READ_ONCE			0x21 /* 28-Bit without retries */
154  #define WIN_READ_LONG			0x22 /* 28-Bit */
155  #define WIN_READ_LONG_ONCE		0x23 /* 28-Bit without retries */
156  #define WIN_READ_EXT			0x24 /* 48-Bit */
157  #define WIN_READDMA_EXT			0x25 /* 48-Bit */
158  #define WIN_READDMA_QUEUED_EXT		0x26 /* 48-Bit */
159  #define WIN_READ_NATIVE_MAX_EXT		0x27 /* 48-Bit */
160  /*
161   *	0x28
162   */
163  #define WIN_MULTREAD_EXT		0x29 /* 48-Bit */
164  /*
165   *	0x2A->0x2F Reserved
166   */
167  #define WIN_WRITE			0x30 /* 28-Bit */
168  #define WIN_WRITE_ONCE			0x31 /* 28-Bit without retries */
169  #define WIN_WRITE_LONG			0x32 /* 28-Bit */
170  #define WIN_WRITE_LONG_ONCE		0x33 /* 28-Bit without retries */
171  #define WIN_WRITE_EXT			0x34 /* 48-Bit */
172  #define WIN_WRITEDMA_EXT		0x35 /* 48-Bit */
173  #define WIN_WRITEDMA_QUEUED_EXT		0x36 /* 48-Bit */
174  #define WIN_SET_MAX_EXT			0x37 /* 48-Bit */
175  #define CFA_WRITE_SECT_WO_ERASE		0x38 /* CFA Write Sectors without erase */
176  #define WIN_MULTWRITE_EXT		0x39 /* 48-Bit */
177  /*
178   *	0x3A->0x3B Reserved
179   */
180  #define WIN_WRITE_VERIFY		0x3C /* 28-Bit */
181  /*
182   *	0x3D->0x3F Reserved
183   */
184  #define WIN_VERIFY			0x40 /* 28-Bit - Read Verify Sectors */
185  #define WIN_VERIFY_ONCE			0x41 /* 28-Bit - without retries */
186  #define WIN_VERIFY_EXT			0x42 /* 48-Bit */
187  /*
188   *	0x43->0x4F Reserved
189   */
190  #define WIN_FORMAT			0x50
191  /*
192   *	0x51->0x5F Reserved
193   */
194  #define WIN_INIT			0x60
195  /*
196   *	0x61->0x5F Reserved
197   */
198  #define WIN_SEEK			0x70 /* 0x70-0x7F Reserved */
199  
200  #define CFA_TRANSLATE_SECTOR		0x87 /* CFA Translate Sector */
201  #define WIN_DIAGNOSE			0x90
202  #define WIN_SPECIFY			0x91 /* set drive geometry translation */
203  #define WIN_DOWNLOAD_MICROCODE		0x92
204  #define WIN_STANDBYNOW2			0x94
205  #define WIN_STANDBY2			0x96
206  #define WIN_SETIDLE2			0x97
207  #define WIN_CHECKPOWERMODE2		0x98
208  #define WIN_SLEEPNOW2			0x99
209  /*
210   *	0x9A VENDOR
211   */
212  #define WIN_PACKETCMD			0xA0 /* Send a packet command. */
213  #define WIN_PIDENTIFY			0xA1 /* identify ATAPI device	*/
214  #define WIN_QUEUED_SERVICE		0xA2
215  #define WIN_SMART			0xB0 /* self-monitoring and reporting */
216  #define CFA_ERASE_SECTORS		0xC0
217  #define WIN_MULTREAD			0xC4 /* read sectors using multiple mode*/
218  #define WIN_MULTWRITE			0xC5 /* write sectors using multiple mode */
219  #define WIN_SETMULT			0xC6 /* enable/disable multiple mode */
220  #define WIN_READDMA_QUEUED		0xC7 /* read sectors using Queued DMA transfers */
221  #define WIN_READDMA			0xC8 /* read sectors using DMA transfers */
222  #define WIN_READDMA_ONCE		0xC9 /* 28-Bit - without retries */
223  #define WIN_WRITEDMA			0xCA /* write sectors using DMA transfers */
224  #define WIN_WRITEDMA_ONCE		0xCB /* 28-Bit - without retries */
225  #define WIN_WRITEDMA_QUEUED		0xCC /* write sectors using Queued DMA transfers */
226  #define CFA_WRITE_MULTI_WO_ERASE	0xCD /* CFA Write multiple without erase */
227  #define WIN_GETMEDIASTATUS		0xDA
228  #define WIN_ACKMEDIACHANGE		0xDB /* ATA-1, ATA-2 vendor */
229  #define WIN_POSTBOOT			0xDC
230  #define WIN_PREBOOT 			0xDD
231  #define WIN_DOORLOCK			0xDE /* lock door on removable drives */
232  #define WIN_DOORUNLOCK			0xDF /* unlock door on removable drives */
233  #define WIN_STANDBYNOW1			0xE0
234  #define WIN_IDLEIMMEDIATE		0xE1 /* force drive to become "ready" */
235  #define WIN_STANDBY			0xE2 /* Set device in Standby Mode */
236  #define WIN_SETIDLE1			0xE3
237  #define WIN_READ_BUFFER			0xE4 /* force read only 1 sector */
238  #define WIN_CHECKPOWERMODE1		0xE5
239  #define WIN_SLEEPNOW1			0xE6
240  #define WIN_FLUSH_CACHE			0xE7
241  #define WIN_WRITE_BUFFER		0xE8 /* force write only 1 sector */
242  #define WIN_WRITE_SAME			0xE9 /* read ata-2 to use */
243  	/* SET_FEATURES 0x22 or 0xDD */
244  #define WIN_FLUSH_CACHE_EXT		0xEA /* 48-Bit */
245  #define WIN_IDENTIFY			0xEC /* ask drive to identify itself	*/
246  #define WIN_MEDIAEJECT			0xED
247  #define WIN_IDENTIFY_DMA		0xEE /* same as WIN_IDENTIFY, but DMA */
248  #define WIN_SETFEATURES			0xEF /* set special drive features */
249  #define EXABYTE_ENABLE_NEST		0xF0
250  #define WIN_SECURITY_SET_PASS		0xF1
251  #define WIN_SECURITY_UNLOCK		0xF2
252  #define WIN_SECURITY_ERASE_PREPARE	0xF3
253  #define WIN_SECURITY_ERASE_UNIT		0xF4
254  #define WIN_SECURITY_FREEZE_LOCK	0xF5
255  #define WIN_SECURITY_DISABLE		0xF6
256  #define WIN_READ_NATIVE_MAX		0xF8 /* return the native maximum address */
257  #define WIN_SET_MAX			0xF9
258  #define DISABLE_SEAGATE			0xFB
259  
260  /* WIN_SMART sub-commands */
261  
262  #define SMART_READ_VALUES		0xD0
263  #define SMART_READ_THRESHOLDS		0xD1
264  #define SMART_AUTOSAVE			0xD2
265  #define SMART_SAVE			0xD3
266  #define SMART_IMMEDIATE_OFFLINE		0xD4
267  #define SMART_READ_LOG_SECTOR		0xD5
268  #define SMART_WRITE_LOG_SECTOR		0xD6
269  #define SMART_WRITE_THRESHOLDS		0xD7
270  #define SMART_ENABLE			0xD8
271  #define SMART_DISABLE			0xD9
272  #define SMART_STATUS			0xDA
273  #define SMART_AUTO_OFFLINE		0xDB
274  
275  /* Password used in TF4 & TF5 executing SMART commands */
276  
277  #define SMART_LCYL_PASS			0x4F
278  #define SMART_HCYL_PASS			0xC2
279  
280  /* WIN_SETFEATURES sub-commands */
281  #define SETFEATURES_EN_8BIT	0x01	/* Enable 8-Bit Transfers */
282  #define SETFEATURES_EN_WCACHE	0x02	/* Enable write cache */
283  #define SETFEATURES_DIS_DEFECT	0x04	/* Disable Defect Management */
284  #define SETFEATURES_EN_APM	0x05	/* Enable advanced power management */
285  #define SETFEATURES_EN_SAME_R	0x22	/* for a region ATA-1 */
286  #define SETFEATURES_DIS_MSN	0x31	/* Disable Media Status Notification */
287  #define SETFEATURES_DIS_RETRY	0x33	/* Disable Retry */
288  #define SETFEATURES_EN_AAM	0x42	/* Enable Automatic Acoustic Management */
289  #define SETFEATURES_RW_LONG	0x44	/* Set Length of VS bytes */
290  #define SETFEATURES_SET_CACHE	0x54	/* Set Cache segments to SC Reg. Val */
291  #define SETFEATURES_DIS_RLA	0x55	/* Disable read look-ahead feature */
292  #define SETFEATURES_EN_RI	0x5D	/* Enable release interrupt */
293  #define SETFEATURES_EN_SI	0x5E	/* Enable SERVICE interrupt */
294  #define SETFEATURES_DIS_RPOD	0x66	/* Disable reverting to power on defaults */
295  #define SETFEATURES_DIS_ECC	0x77	/* Disable ECC byte count */
296  #define SETFEATURES_DIS_8BIT	0x81	/* Disable 8-Bit Transfers */
297  #define SETFEATURES_DIS_WCACHE	0x82	/* Disable write cache */
298  #define SETFEATURES_EN_DEFECT	0x84	/* Enable Defect Management */
299  #define SETFEATURES_DIS_APM	0x85	/* Disable advanced power management */
300  #define SETFEATURES_EN_ECC	0x88	/* Enable ECC byte count */
301  #define SETFEATURES_EN_MSN	0x95	/* Enable Media Status Notification */
302  #define SETFEATURES_EN_RETRY	0x99	/* Enable Retry */
303  #define SETFEATURES_EN_RLA	0xAA	/* Enable read look-ahead feature */
304  #define SETFEATURES_PREFETCH	0xAB	/* Sets drive prefetch value */
305  #define SETFEATURES_EN_REST	0xAC	/* ATA-1 */
306  #define SETFEATURES_4B_RW_LONG	0xBB	/* Set Length of 4 bytes */
307  #define SETFEATURES_DIS_AAM	0xC2	/* Disable Automatic Acoustic Management */
308  #define SETFEATURES_EN_RPOD	0xCC	/* Enable reverting to power on defaults */
309  #define SETFEATURES_DIS_RI	0xDD	/* Disable release interrupt ATAPI */
310  #define SETFEATURES_EN_SAME_M	0xDD	/* for a entire device ATA-1 */
311  #define SETFEATURES_DIS_SI	0xDE	/* Disable SERVICE interrupt ATAPI */
312  
313  /* WIN_SECURITY sub-commands */
314  
315  #define SECURITY_SET_PASSWORD		0xBA
316  #define SECURITY_UNLOCK			0xBB
317  #define SECURITY_ERASE_PREPARE		0xBC
318  #define SECURITY_ERASE_UNIT		0xBD
319  #define SECURITY_FREEZE_LOCK		0xBE
320  #define SECURITY_DISABLE_PASSWORD	0xBF
321  #endif /* __KERNEL__ */
322  
323  struct hd_geometry {
324        unsigned char heads;
325        unsigned char sectors;
326        unsigned short cylinders;
327        unsigned long start;
328  };
329  
330  /* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x030n/0x031n */
331  #define HDIO_GETGEO		0x0301	/* get device geometry */
332  #define HDIO_GET_UNMASKINTR	0x0302	/* get current unmask setting */
333  #define HDIO_GET_MULTCOUNT	0x0304	/* get current IDE blockmode setting */
334  #define HDIO_GET_QDMA		0x0305	/* get use-qdma flag */
335  
336  #define HDIO_SET_XFER		0x0306  /* set transfer rate via proc */
337  
338  #define HDIO_OBSOLETE_IDENTITY	0x0307	/* OBSOLETE, DO NOT USE: returns 142 bytes */
339  #define HDIO_GET_KEEPSETTINGS	0x0308	/* get keep-settings-on-reset flag */
340  #define HDIO_GET_32BIT		0x0309	/* get current io_32bit setting */
341  #define HDIO_GET_NOWERR		0x030a	/* get ignore-write-error flag */
342  #define HDIO_GET_DMA		0x030b	/* get use-dma flag */
343  #define HDIO_GET_NICE		0x030c	/* get nice flags */
344  #define HDIO_GET_IDENTITY	0x030d	/* get IDE identification info */
345  #define HDIO_GET_WCACHE		0x030e	/* get write cache mode on|off */
346  #define HDIO_GET_ACOUSTIC	0x030f	/* get acoustic value */
347  #define	HDIO_GET_ADDRESS	0x0310	/* */
348  
349  #define HDIO_GET_BUSSTATE	0x031a	/* get the bus state of the hwif */
350  #define HDIO_TRISTATE_HWIF	0x031b	/* execute a channel tristate */
351  #define HDIO_DRIVE_RESET	0x031c	/* execute a device reset */
352  #define HDIO_DRIVE_TASKFILE	0x031d	/* execute raw taskfile */
353  #define HDIO_DRIVE_TASK		0x031e	/* execute task and special drive command */
354  #define HDIO_DRIVE_CMD		0x031f	/* execute a special drive command */
355  #define HDIO_DRIVE_CMD_AEB	HDIO_DRIVE_TASK
356  
357  /* hd/ide ctl's that pass (arg) non-ptr values are numbered 0x032n/0x033n */
358  #define HDIO_SET_MULTCOUNT	0x0321	/* change IDE blockmode */
359  #define HDIO_SET_UNMASKINTR	0x0322	/* permit other irqs during I/O */
360  #define HDIO_SET_KEEPSETTINGS	0x0323	/* keep ioctl settings on reset */
361  #define HDIO_SET_32BIT		0x0324	/* change io_32bit flags */
362  #define HDIO_SET_NOWERR		0x0325	/* change ignore-write-error flag */
363  #define HDIO_SET_DMA		0x0326	/* change use-dma flag */
364  #define HDIO_SET_PIO_MODE	0x0327	/* reconfig interface to new speed */
365  #ifndef __KERNEL__
366  #define HDIO_SCAN_HWIF		0x0328	/* register and (re)scan interface */
367  #define HDIO_UNREGISTER_HWIF	0x032a  /* unregister interface */
368  #endif
369  #define HDIO_SET_NICE		0x0329	/* set nice flags */
370  #define HDIO_SET_WCACHE		0x032b	/* change write cache enable-disable */
371  #define HDIO_SET_ACOUSTIC	0x032c	/* change acoustic behavior */
372  #define HDIO_SET_BUSSTATE	0x032d	/* set the bus state of the hwif */
373  #define HDIO_SET_QDMA		0x032e	/* change use-qdma flag */
374  #define HDIO_SET_ADDRESS	0x032f	/* change lba addressing modes */
375  
376  /* bus states */
377  enum {
378  	BUSSTATE_OFF = 0,
379  	BUSSTATE_ON,
380  	BUSSTATE_TRISTATE
381  };
382  
383  /* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x033n/0x033n */
384  /* 0x330 is reserved - used to be HDIO_GETGEO_BIG */
385  /* 0x331 is reserved - used to be HDIO_GETGEO_BIG_RAW */
386  /* 0x338 is reserved - used to be HDIO_SET_IDE_SCSI */
387  /* 0x339 is reserved - used to be HDIO_SET_SCSI_IDE */
388  
389  #define __NEW_HD_DRIVE_ID
390  
391  #ifndef __KERNEL__
392  /*
393   * Structure returned by HDIO_GET_IDENTITY, as per ANSI NCITS ATA6 rev.1b spec.
394   *
395   * If you change something here, please remember to update fix_driveid() in
396   * ide/probe.c.
397   */
398  struct hd_driveid {
399  	unsigned short	config;		/* lots of obsolete bit flags */
400  	unsigned short	cyls;		/* Obsolete, "physical" cyls */
401  	unsigned short	reserved2;	/* reserved (word 2) */
402  	unsigned short	heads;		/* Obsolete, "physical" heads */
403  	unsigned short	track_bytes;	/* unformatted bytes per track */
404  	unsigned short	sector_bytes;	/* unformatted bytes per sector */
405  	unsigned short	sectors;	/* Obsolete, "physical" sectors per track */
406  	unsigned short	vendor0;	/* vendor unique */
407  	unsigned short	vendor1;	/* vendor unique */
408  	unsigned short	vendor2;	/* Retired vendor unique */
409  	unsigned char	serial_no[20];	/* 0 = not_specified */
410  	unsigned short	buf_type;	/* Retired */
411  	unsigned short	buf_size;	/* Retired, 512 byte increments
412  					 * 0 = not_specified
413  					 */
414  	unsigned short	ecc_bytes;	/* for r/w long cmds; 0 = not_specified */
415  	unsigned char	fw_rev[8];	/* 0 = not_specified */
416  	unsigned char	model[40];	/* 0 = not_specified */
417  	unsigned char	max_multsect;	/* 0=not_implemented */
418  	unsigned char	vendor3;	/* vendor unique */
419  	unsigned short	dword_io;	/* 0=not_implemented; 1=implemented */
420  	unsigned char	vendor4;	/* vendor unique */
421  	unsigned char	capability;	/* (upper byte of word 49)
422  					 *  3:	IORDYsup
423  					 *  2:	IORDYsw
424  					 *  1:	LBA
425  					 *  0:	DMA
426  					 */
427  	unsigned short	reserved50;	/* reserved (word 50) */
428  	unsigned char	vendor5;	/* Obsolete, vendor unique */
429  	unsigned char	tPIO;		/* Obsolete, 0=slow, 1=medium, 2=fast */
430  	unsigned char	vendor6;	/* Obsolete, vendor unique */
431  	unsigned char	tDMA;		/* Obsolete, 0=slow, 1=medium, 2=fast */
432  	unsigned short	field_valid;	/* (word 53)
433  					 *  2:	ultra_ok	word  88
434  					 *  1:	eide_ok		words 64-70
435  					 *  0:	cur_ok		words 54-58
436  					 */
437  	unsigned short	cur_cyls;	/* Obsolete, logical cylinders */
438  	unsigned short	cur_heads;	/* Obsolete, l heads */
439  	unsigned short	cur_sectors;	/* Obsolete, l sectors per track */
440  	unsigned short	cur_capacity0;	/* Obsolete, l total sectors on drive */
441  	unsigned short	cur_capacity1;	/* Obsolete, (2 words, misaligned int)     */
442  	unsigned char	multsect;	/* current multiple sector count */
443  	unsigned char	multsect_valid;	/* when (bit0==1) multsect is ok */
444  	unsigned int	lba_capacity;	/* Obsolete, total number of sectors */
445  	unsigned short	dma_1word;	/* Obsolete, single-word dma info */
446  	unsigned short	dma_mword;	/* multiple-word dma info */
447  	unsigned short  eide_pio_modes; /* bits 0:mode3 1:mode4 */
448  	unsigned short  eide_dma_min;	/* min mword dma cycle time (ns) */
449  	unsigned short  eide_dma_time;	/* recommended mword dma cycle time (ns) */
450  	unsigned short  eide_pio;       /* min cycle time (ns), no IORDY  */
451  	unsigned short  eide_pio_iordy; /* min cycle time (ns), with IORDY */
452  	unsigned short	words69_70[2];	/* reserved words 69-70
453  					 * future command overlap and queuing
454  					 */
455  	unsigned short	words71_74[4];	/* reserved words 71-74
456  					 * for IDENTIFY PACKET DEVICE command
457  					 */
458  	unsigned short  queue_depth;	/* (word 75)
459  					 * 15:5	reserved
460  					 *  4:0	Maximum queue depth -1
461  					 */
462  	unsigned short  words76_79[4];	/* reserved words 76-79 */
463  	unsigned short  major_rev_num;	/* (word 80) */
464  	unsigned short  minor_rev_num;	/* (word 81) */
465  	unsigned short  command_set_1;	/* (word 82) supported
466  					 * 15:	Obsolete
467  					 * 14:	NOP command
468  					 * 13:	READ_BUFFER
469  					 * 12:	WRITE_BUFFER
470  					 * 11:	Obsolete
471  					 * 10:	Host Protected Area
472  					 *  9:	DEVICE Reset
473  					 *  8:	SERVICE Interrupt
474  					 *  7:	Release Interrupt
475  					 *  6:	look-ahead
476  					 *  5:	write cache
477  					 *  4:	PACKET Command
478  					 *  3:	Power Management Feature Set
479  					 *  2:	Removable Feature Set
480  					 *  1:	Security Feature Set
481  					 *  0:	SMART Feature Set
482  					 */
483  	unsigned short  command_set_2;	/* (word 83)
484  					 * 15:	Shall be ZERO
485  					 * 14:	Shall be ONE
486  					 * 13:	FLUSH CACHE EXT
487  					 * 12:	FLUSH CACHE
488  					 * 11:	Device Configuration Overlay
489  					 * 10:	48-bit Address Feature Set
490  					 *  9:	Automatic Acoustic Management
491  					 *  8:	SET MAX security
492  					 *  7:	reserved 1407DT PARTIES
493  					 *  6:	SetF sub-command Power-Up
494  					 *  5:	Power-Up in Standby Feature Set
495  					 *  4:	Removable Media Notification
496  					 *  3:	APM Feature Set
497  					 *  2:	CFA Feature Set
498  					 *  1:	READ/WRITE DMA QUEUED
499  					 *  0:	Download MicroCode
500  					 */
501  	unsigned short  cfsse;		/* (word 84)
502  					 * cmd set-feature supported extensions
503  					 * 15:	Shall be ZERO
504  					 * 14:	Shall be ONE
505  					 * 13:6	reserved
506  					 *  5:	General Purpose Logging
507  					 *  4:	Streaming Feature Set
508  					 *  3:	Media Card Pass Through
509  					 *  2:	Media Serial Number Valid
510  					 *  1:	SMART selt-test supported
511  					 *  0:	SMART error logging
512  					 */
513  	unsigned short  cfs_enable_1;	/* (word 85)
514  					 * command set-feature enabled
515  					 * 15:	Obsolete
516  					 * 14:	NOP command
517  					 * 13:	READ_BUFFER
518  					 * 12:	WRITE_BUFFER
519  					 * 11:	Obsolete
520  					 * 10:	Host Protected Area
521  					 *  9:	DEVICE Reset
522  					 *  8:	SERVICE Interrupt
523  					 *  7:	Release Interrupt
524  					 *  6:	look-ahead
525  					 *  5:	write cache
526  					 *  4:	PACKET Command
527  					 *  3:	Power Management Feature Set
528  					 *  2:	Removable Feature Set
529  					 *  1:	Security Feature Set
530  					 *  0:	SMART Feature Set
531  					 */
532  	unsigned short  cfs_enable_2;	/* (word 86)
533  					 * command set-feature enabled
534  					 * 15:	Shall be ZERO
535  					 * 14:	Shall be ONE
536  					 * 13:	FLUSH CACHE EXT
537  					 * 12:	FLUSH CACHE
538  					 * 11:	Device Configuration Overlay
539  					 * 10:	48-bit Address Feature Set
540  					 *  9:	Automatic Acoustic Management
541  					 *  8:	SET MAX security
542  					 *  7:	reserved 1407DT PARTIES
543  					 *  6:	SetF sub-command Power-Up
544  					 *  5:	Power-Up in Standby Feature Set
545  					 *  4:	Removable Media Notification
546  					 *  3:	APM Feature Set
547  					 *  2:	CFA Feature Set
548  					 *  1:	READ/WRITE DMA QUEUED
549  					 *  0:	Download MicroCode
550  					 */
551  	unsigned short  csf_default;	/* (word 87)
552  					 * command set-feature default
553  					 * 15:	Shall be ZERO
554  					 * 14:	Shall be ONE
555  					 * 13:6	reserved
556  					 *  5:	General Purpose Logging enabled
557  					 *  4:	Valid CONFIGURE STREAM executed
558  					 *  3:	Media Card Pass Through enabled
559  					 *  2:	Media Serial Number Valid
560  					 *  1:	SMART selt-test supported
561  					 *  0:	SMART error logging
562  					 */
563  	unsigned short  dma_ultra;	/* (word 88) */
564  	unsigned short	trseuc;		/* time required for security erase */
565  	unsigned short	trsEuc;		/* time required for enhanced erase */
566  	unsigned short	CurAPMvalues;	/* current APM values */
567  	unsigned short	mprc;		/* master password revision code */
568  	unsigned short	hw_config;	/* hardware config (word 93)
569  					 * 15:	Shall be ZERO
570  					 * 14:	Shall be ONE
571  					 * 13:
572  					 * 12:
573  					 * 11:
574  					 * 10:
575  					 *  9:
576  					 *  8:
577  					 *  7:
578  					 *  6:
579  					 *  5:
580  					 *  4:
581  					 *  3:
582  					 *  2:
583  					 *  1:
584  					 *  0:	Shall be ONE
585  					 */
586  	unsigned short	acoustic;	/* (word 94)
587  					 * 15:8	Vendor's recommended value
588  					 *  7:0	current value
589  					 */
590  	unsigned short	msrqs;		/* min stream request size */
591  	unsigned short	sxfert;		/* stream transfer time */
592  	unsigned short	sal;		/* stream access latency */
593  	unsigned int	spg;		/* stream performance granularity */
594  	unsigned long long lba_capacity_2;/* 48-bit total number of sectors */
595  	unsigned short	words104_125[22];/* reserved words 104-125 */
596  	unsigned short	last_lun;	/* (word 126) */
597  	unsigned short	word127;	/* (word 127) Feature Set
598  					 * Removable Media Notification
599  					 * 15:2	reserved
600  					 *  1:0	00 = not supported
601  					 *	01 = supported
602  					 *	10 = reserved
603  					 *	11 = reserved
604  					 */
605  	unsigned short	dlf;		/* (word 128)
606  					 * device lock function
607  					 * 15:9	reserved
608  					 *  8	security level 1:max 0:high
609  					 *  7:6	reserved
610  					 *  5	enhanced erase
611  					 *  4	expire
612  					 *  3	frozen
613  					 *  2	locked
614  					 *  1	en/disabled
615  					 *  0	capability
616  					 */
617  	unsigned short  csfo;		/*  (word 129)
618  					 * current set features options
619  					 * 15:4	reserved
620  					 *  3:	auto reassign
621  					 *  2:	reverting
622  					 *  1:	read-look-ahead
623  					 *  0:	write cache
624  					 */
625  	unsigned short	words130_155[26];/* reserved vendor words 130-155 */
626  	unsigned short	word156;	/* reserved vendor word 156 */
627  	unsigned short	words157_159[3];/* reserved vendor words 157-159 */
628  	unsigned short	cfa_power;	/* (word 160) CFA Power Mode
629  					 * 15 word 160 supported
630  					 * 14 reserved
631  					 * 13
632  					 * 12
633  					 * 11:0
634  					 */
635  	unsigned short	words161_175[15];/* Reserved for CFA */
636  	unsigned short	words176_205[30];/* Current Media Serial Number */
637  	unsigned short	words206_254[49];/* reserved words 206-254 */
638  	unsigned short	integrity_word;	/* (word 255)
639  					 * 15:8 Checksum
640  					 *  7:0 Signature
641  					 */
642  };
643  #endif /* __KERNEL__ */
644  
645  /*
646   * IDE "nice" flags. These are used on a per drive basis to determine
647   * when to be nice and give more bandwidth to the other devices which
648   * share the same IDE bus.
649   */
650  #define IDE_NICE_DSC_OVERLAP	(0)	/* per the DSC overlap protocol */
651  #define IDE_NICE_ATAPI_OVERLAP	(1)	/* not supported yet */
652  #define IDE_NICE_1		(3)	/* when probably won't affect us much */
653  #ifndef __KERNEL__
654  #define IDE_NICE_0		(2)	/* when sure that it won't affect us */
655  #define IDE_NICE_2		(4)	/* when we know it's on our expense */
656  #endif
657  
658  #endif	/* _LINUX_HDREG_H */
659