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1 #ifndef _LINUX_HDREG_H
2 #define _LINUX_HDREG_H
3 
4 #ifdef __KERNEL__
5 #include <linux/ata.h>
6 
7 /*
8  * This file contains some defines for the AT-hd-controller.
9  * Various sources.
10  */
11 
12 /* ide.c has its own port definitions in "ide.h" */
13 
14 #define HD_IRQ		14
15 
16 /* Hd controller regs. Ref: IBM AT Bios-listing */
17 #define HD_DATA		0x1f0		/* _CTL when writing */
18 #define HD_ERROR	0x1f1		/* see err-bits */
19 #define HD_NSECTOR	0x1f2		/* nr of sectors to read/write */
20 #define HD_SECTOR	0x1f3		/* starting sector */
21 #define HD_LCYL		0x1f4		/* starting cylinder */
22 #define HD_HCYL		0x1f5		/* high byte of starting cyl */
23 #define HD_CURRENT	0x1f6		/* 101dhhhh , d=drive, hhhh=head */
24 #define HD_STATUS	0x1f7		/* see status-bits */
25 #define HD_FEATURE	HD_ERROR	/* same io address, read=error, write=feature */
26 #define HD_PRECOMP	HD_FEATURE	/* obsolete use of this port - predates IDE */
27 #define HD_COMMAND	HD_STATUS	/* same io address, read=status, write=cmd */
28 
29 #define HD_CMD		0x3f6		/* used for resets */
30 #define HD_ALTSTATUS	0x3f6		/* same as HD_STATUS but doesn't clear irq */
31 
32 /* remainder is shared between hd.c, ide.c, ide-cd.c, and the hdparm utility */
33 
34 /* Bits of HD_STATUS */
35 #define ERR_STAT		0x01
36 #define INDEX_STAT		0x02
37 #define ECC_STAT		0x04	/* Corrected error */
38 #define DRQ_STAT		0x08
39 #define SEEK_STAT		0x10
40 #define SRV_STAT		0x10
41 #define WRERR_STAT		0x20
42 #define READY_STAT		0x40
43 #define BUSY_STAT		0x80
44 
45 /* Bits for HD_ERROR */
46 #define MARK_ERR		0x01	/* Bad address mark */
47 #define ILI_ERR			0x01	/* Illegal Length Indication (ATAPI) */
48 #define TRK0_ERR		0x02	/* couldn't find track 0 */
49 #define EOM_ERR			0x02	/* End Of Media (ATAPI) */
50 #define ABRT_ERR		0x04	/* Command aborted */
51 #define MCR_ERR			0x08	/* media change request */
52 #define ID_ERR			0x10	/* ID field not found */
53 #define MC_ERR			0x20	/* media changed */
54 #define ECC_ERR			0x40	/* Uncorrectable ECC error */
55 #define BBD_ERR			0x80	/* pre-EIDE meaning:  block marked bad */
56 #define ICRC_ERR		0x80	/* new meaning:  CRC error during transfer */
57 #define LFS_ERR			0xf0	/* Last Failed Sense (ATAPI) */
58 
59 /* Bits of HD_NSECTOR */
60 #define CD			0x01
61 #define IO			0x02
62 #define REL			0x04
63 #define TAG_MASK		0xf8
64 #endif /* __KERNEL__ */
65 
66 #include <linux/types.h>
67 
68 /*
69  * Command Header sizes for IOCTL commands
70  */
71 
72 #define HDIO_DRIVE_CMD_HDR_SIZE		(4 * sizeof(__u8))
73 #define HDIO_DRIVE_HOB_HDR_SIZE		(8 * sizeof(__u8))
74 #define HDIO_DRIVE_TASK_HDR_SIZE	(8 * sizeof(__u8))
75 
76 #define IDE_DRIVE_TASK_NO_DATA		0
77 #ifndef __KERNEL__
78 #define IDE_DRIVE_TASK_INVALID		-1
79 #define IDE_DRIVE_TASK_SET_XFER		1
80 #define IDE_DRIVE_TASK_IN		2
81 #define IDE_DRIVE_TASK_OUT		3
82 #endif
83 #define IDE_DRIVE_TASK_RAW_WRITE	4
84 
85 /*
86  * Define standard taskfile in/out register
87  */
88 #define IDE_TASKFILE_STD_IN_FLAGS	0xFE
89 #define IDE_HOB_STD_IN_FLAGS		0x3C
90 #ifndef __KERNEL__
91 #define IDE_TASKFILE_STD_OUT_FLAGS	0xFE
92 #define IDE_HOB_STD_OUT_FLAGS		0x3C
93 
94 typedef unsigned char task_ioreg_t;
95 typedef unsigned long sata_ioreg_t;
96 #endif
97 
98 typedef union ide_reg_valid_s {
99 	unsigned all				: 16;
100 	struct {
101 		unsigned data			: 1;
102 		unsigned error_feature		: 1;
103 		unsigned sector			: 1;
104 		unsigned nsector		: 1;
105 		unsigned lcyl			: 1;
106 		unsigned hcyl			: 1;
107 		unsigned select			: 1;
108 		unsigned status_command		: 1;
109 
110 		unsigned data_hob		: 1;
111 		unsigned error_feature_hob	: 1;
112 		unsigned sector_hob		: 1;
113 		unsigned nsector_hob		: 1;
114 		unsigned lcyl_hob		: 1;
115 		unsigned hcyl_hob		: 1;
116 		unsigned select_hob		: 1;
117 		unsigned control_hob		: 1;
118 	} b;
119 } ide_reg_valid_t;
120 
121 typedef struct ide_task_request_s {
122 	__u8		io_ports[8];
123 	__u8		hob_ports[8]; /* bytes 6 and 7 are unused */
124 	ide_reg_valid_t	out_flags;
125 	ide_reg_valid_t	in_flags;
126 	int		data_phase;
127 	int		req_cmd;
128 	unsigned long	out_size;
129 	unsigned long	in_size;
130 } ide_task_request_t;
131 
132 typedef struct ide_ioctl_request_s {
133 	ide_task_request_t	*task_request;
134 	unsigned char		*out_buffer;
135 	unsigned char		*in_buffer;
136 } ide_ioctl_request_t;
137 
138 struct hd_drive_cmd_hdr {
139 	__u8 command;
140 	__u8 sector_number;
141 	__u8 feature;
142 	__u8 sector_count;
143 };
144 
145 #ifndef __KERNEL__
146 typedef struct hd_drive_task_hdr {
147 	__u8 data;
148 	__u8 feature;
149 	__u8 sector_count;
150 	__u8 sector_number;
151 	__u8 low_cylinder;
152 	__u8 high_cylinder;
153 	__u8 device_head;
154 	__u8 command;
155 } task_struct_t;
156 
157 typedef struct hd_drive_hob_hdr {
158 	__u8 data;
159 	__u8 feature;
160 	__u8 sector_count;
161 	__u8 sector_number;
162 	__u8 low_cylinder;
163 	__u8 high_cylinder;
164 	__u8 device_head;
165 	__u8 control;
166 } hob_struct_t;
167 #endif
168 
169 #define TASKFILE_NO_DATA		0x0000
170 
171 #define TASKFILE_IN			0x0001
172 #define TASKFILE_MULTI_IN		0x0002
173 
174 #define TASKFILE_OUT			0x0004
175 #define TASKFILE_MULTI_OUT		0x0008
176 #define TASKFILE_IN_OUT			0x0010
177 
178 #define TASKFILE_IN_DMA			0x0020
179 #define TASKFILE_OUT_DMA		0x0040
180 #define TASKFILE_IN_DMAQ		0x0080
181 #define TASKFILE_OUT_DMAQ		0x0100
182 
183 #ifndef __KERNEL__
184 #define TASKFILE_P_IN			0x0200
185 #define TASKFILE_P_OUT			0x0400
186 #define TASKFILE_P_IN_DMA		0x0800
187 #define TASKFILE_P_OUT_DMA		0x1000
188 #define TASKFILE_P_IN_DMAQ		0x2000
189 #define TASKFILE_P_OUT_DMAQ		0x4000
190 #define TASKFILE_48			0x8000
191 #define TASKFILE_INVALID		0x7fff
192 #endif
193 
194 /* ATA/ATAPI Commands pre T13 Spec */
195 #define WIN_NOP				0x00
196 /*
197  *	0x01->0x02 Reserved
198  */
199 #define CFA_REQ_EXT_ERROR_CODE		0x03 /* CFA Request Extended Error Code */
200 /*
201  *	0x04->0x07 Reserved
202  */
203 #define WIN_SRST			0x08 /* ATAPI soft reset command */
204 #define WIN_DEVICE_RESET		0x08
205 /*
206  *	0x09->0x0F Reserved
207  */
208 #define WIN_RECAL			0x10
209 #define WIN_RESTORE			WIN_RECAL
210 /*
211  *	0x10->0x1F Reserved
212  */
213 #define WIN_READ			0x20 /* 28-Bit */
214 #define WIN_READ_ONCE			0x21 /* 28-Bit without retries */
215 #define WIN_READ_LONG			0x22 /* 28-Bit */
216 #define WIN_READ_LONG_ONCE		0x23 /* 28-Bit without retries */
217 #define WIN_READ_EXT			0x24 /* 48-Bit */
218 #define WIN_READDMA_EXT			0x25 /* 48-Bit */
219 #define WIN_READDMA_QUEUED_EXT		0x26 /* 48-Bit */
220 #define WIN_READ_NATIVE_MAX_EXT		0x27 /* 48-Bit */
221 /*
222  *	0x28
223  */
224 #define WIN_MULTREAD_EXT		0x29 /* 48-Bit */
225 /*
226  *	0x2A->0x2F Reserved
227  */
228 #define WIN_WRITE			0x30 /* 28-Bit */
229 #define WIN_WRITE_ONCE			0x31 /* 28-Bit without retries */
230 #define WIN_WRITE_LONG			0x32 /* 28-Bit */
231 #define WIN_WRITE_LONG_ONCE		0x33 /* 28-Bit without retries */
232 #define WIN_WRITE_EXT			0x34 /* 48-Bit */
233 #define WIN_WRITEDMA_EXT		0x35 /* 48-Bit */
234 #define WIN_WRITEDMA_QUEUED_EXT		0x36 /* 48-Bit */
235 #define WIN_SET_MAX_EXT			0x37 /* 48-Bit */
236 #define CFA_WRITE_SECT_WO_ERASE		0x38 /* CFA Write Sectors without erase */
237 #define WIN_MULTWRITE_EXT		0x39 /* 48-Bit */
238 /*
239  *	0x3A->0x3B Reserved
240  */
241 #define WIN_WRITE_VERIFY		0x3C /* 28-Bit */
242 /*
243  *	0x3D->0x3F Reserved
244  */
245 #define WIN_VERIFY			0x40 /* 28-Bit - Read Verify Sectors */
246 #define WIN_VERIFY_ONCE			0x41 /* 28-Bit - without retries */
247 #define WIN_VERIFY_EXT			0x42 /* 48-Bit */
248 /*
249  *	0x43->0x4F Reserved
250  */
251 #define WIN_FORMAT			0x50
252 /*
253  *	0x51->0x5F Reserved
254  */
255 #define WIN_INIT			0x60
256 /*
257  *	0x61->0x5F Reserved
258  */
259 #define WIN_SEEK			0x70 /* 0x70-0x7F Reserved */
260 
261 #define CFA_TRANSLATE_SECTOR		0x87 /* CFA Translate Sector */
262 #define WIN_DIAGNOSE			0x90
263 #define WIN_SPECIFY			0x91 /* set drive geometry translation */
264 #define WIN_DOWNLOAD_MICROCODE		0x92
265 #define WIN_STANDBYNOW2			0x94
266 #define WIN_STANDBY2			0x96
267 #define WIN_SETIDLE2			0x97
268 #define WIN_CHECKPOWERMODE2		0x98
269 #define WIN_SLEEPNOW2			0x99
270 /*
271  *	0x9A VENDOR
272  */
273 #define WIN_PACKETCMD			0xA0 /* Send a packet command. */
274 #define WIN_PIDENTIFY			0xA1 /* identify ATAPI device	*/
275 #define WIN_QUEUED_SERVICE		0xA2
276 #define WIN_SMART			0xB0 /* self-monitoring and reporting */
277 #define CFA_ERASE_SECTORS		0xC0
278 #define WIN_MULTREAD			0xC4 /* read sectors using multiple mode*/
279 #define WIN_MULTWRITE			0xC5 /* write sectors using multiple mode */
280 #define WIN_SETMULT			0xC6 /* enable/disable multiple mode */
281 #define WIN_READDMA_QUEUED		0xC7 /* read sectors using Queued DMA transfers */
282 #define WIN_READDMA			0xC8 /* read sectors using DMA transfers */
283 #define WIN_READDMA_ONCE		0xC9 /* 28-Bit - without retries */
284 #define WIN_WRITEDMA			0xCA /* write sectors using DMA transfers */
285 #define WIN_WRITEDMA_ONCE		0xCB /* 28-Bit - without retries */
286 #define WIN_WRITEDMA_QUEUED		0xCC /* write sectors using Queued DMA transfers */
287 #define CFA_WRITE_MULTI_WO_ERASE	0xCD /* CFA Write multiple without erase */
288 #define WIN_GETMEDIASTATUS		0xDA
289 #define WIN_ACKMEDIACHANGE		0xDB /* ATA-1, ATA-2 vendor */
290 #define WIN_POSTBOOT			0xDC
291 #define WIN_PREBOOT 			0xDD
292 #define WIN_DOORLOCK			0xDE /* lock door on removable drives */
293 #define WIN_DOORUNLOCK			0xDF /* unlock door on removable drives */
294 #define WIN_STANDBYNOW1			0xE0
295 #define WIN_IDLEIMMEDIATE		0xE1 /* force drive to become "ready" */
296 #define WIN_STANDBY			0xE2 /* Set device in Standby Mode */
297 #define WIN_SETIDLE1			0xE3
298 #define WIN_READ_BUFFER			0xE4 /* force read only 1 sector */
299 #define WIN_CHECKPOWERMODE1		0xE5
300 #define WIN_SLEEPNOW1			0xE6
301 #define WIN_FLUSH_CACHE			0xE7
302 #define WIN_WRITE_BUFFER		0xE8 /* force write only 1 sector */
303 #define WIN_WRITE_SAME			0xE9 /* read ata-2 to use */
304 	/* SET_FEATURES 0x22 or 0xDD */
305 #define WIN_FLUSH_CACHE_EXT		0xEA /* 48-Bit */
306 #define WIN_IDENTIFY			0xEC /* ask drive to identify itself	*/
307 #define WIN_MEDIAEJECT			0xED
308 #define WIN_IDENTIFY_DMA		0xEE /* same as WIN_IDENTIFY, but DMA */
309 #define WIN_SETFEATURES			0xEF /* set special drive features */
310 #define EXABYTE_ENABLE_NEST		0xF0
311 #define WIN_SECURITY_SET_PASS		0xF1
312 #define WIN_SECURITY_UNLOCK		0xF2
313 #define WIN_SECURITY_ERASE_PREPARE	0xF3
314 #define WIN_SECURITY_ERASE_UNIT		0xF4
315 #define WIN_SECURITY_FREEZE_LOCK	0xF5
316 #define WIN_SECURITY_DISABLE		0xF6
317 #define WIN_READ_NATIVE_MAX		0xF8 /* return the native maximum address */
318 #define WIN_SET_MAX			0xF9
319 #define DISABLE_SEAGATE			0xFB
320 
321 /* WIN_SMART sub-commands */
322 
323 #define SMART_READ_VALUES		0xD0
324 #define SMART_READ_THRESHOLDS		0xD1
325 #define SMART_AUTOSAVE			0xD2
326 #define SMART_SAVE			0xD3
327 #define SMART_IMMEDIATE_OFFLINE		0xD4
328 #define SMART_READ_LOG_SECTOR		0xD5
329 #define SMART_WRITE_LOG_SECTOR		0xD6
330 #define SMART_WRITE_THRESHOLDS		0xD7
331 #define SMART_ENABLE			0xD8
332 #define SMART_DISABLE			0xD9
333 #define SMART_STATUS			0xDA
334 #define SMART_AUTO_OFFLINE		0xDB
335 
336 /* Password used in TF4 & TF5 executing SMART commands */
337 
338 #define SMART_LCYL_PASS			0x4F
339 #define SMART_HCYL_PASS			0xC2
340 
341 /* WIN_SETFEATURES sub-commands */
342 #define SETFEATURES_EN_8BIT	0x01	/* Enable 8-Bit Transfers */
343 #define SETFEATURES_EN_WCACHE	0x02	/* Enable write cache */
344 #define SETFEATURES_DIS_DEFECT	0x04	/* Disable Defect Management */
345 #define SETFEATURES_EN_APM	0x05	/* Enable advanced power management */
346 #define SETFEATURES_EN_SAME_R	0x22	/* for a region ATA-1 */
347 #define SETFEATURES_DIS_MSN	0x31	/* Disable Media Status Notification */
348 #define SETFEATURES_DIS_RETRY	0x33	/* Disable Retry */
349 #define SETFEATURES_EN_AAM	0x42	/* Enable Automatic Acoustic Management */
350 #define SETFEATURES_RW_LONG	0x44	/* Set Length of VS bytes */
351 #define SETFEATURES_SET_CACHE	0x54	/* Set Cache segments to SC Reg. Val */
352 #define SETFEATURES_DIS_RLA	0x55	/* Disable read look-ahead feature */
353 #define SETFEATURES_EN_RI	0x5D	/* Enable release interrupt */
354 #define SETFEATURES_EN_SI	0x5E	/* Enable SERVICE interrupt */
355 #define SETFEATURES_DIS_RPOD	0x66	/* Disable reverting to power on defaults */
356 #define SETFEATURES_DIS_ECC	0x77	/* Disable ECC byte count */
357 #define SETFEATURES_DIS_8BIT	0x81	/* Disable 8-Bit Transfers */
358 #define SETFEATURES_DIS_WCACHE	0x82	/* Disable write cache */
359 #define SETFEATURES_EN_DEFECT	0x84	/* Enable Defect Management */
360 #define SETFEATURES_DIS_APM	0x85	/* Disable advanced power management */
361 #define SETFEATURES_EN_ECC	0x88	/* Enable ECC byte count */
362 #define SETFEATURES_EN_MSN	0x95	/* Enable Media Status Notification */
363 #define SETFEATURES_EN_RETRY	0x99	/* Enable Retry */
364 #define SETFEATURES_EN_RLA	0xAA	/* Enable read look-ahead feature */
365 #define SETFEATURES_PREFETCH	0xAB	/* Sets drive prefetch value */
366 #define SETFEATURES_EN_REST	0xAC	/* ATA-1 */
367 #define SETFEATURES_4B_RW_LONG	0xBB	/* Set Length of 4 bytes */
368 #define SETFEATURES_DIS_AAM	0xC2	/* Disable Automatic Acoustic Management */
369 #define SETFEATURES_EN_RPOD	0xCC	/* Enable reverting to power on defaults */
370 #define SETFEATURES_DIS_RI	0xDD	/* Disable release interrupt ATAPI */
371 #define SETFEATURES_EN_SAME_M	0xDD	/* for a entire device ATA-1 */
372 #define SETFEATURES_DIS_SI	0xDE	/* Disable SERVICE interrupt ATAPI */
373 
374 /* WIN_SECURITY sub-commands */
375 
376 #define SECURITY_SET_PASSWORD		0xBA
377 #define SECURITY_UNLOCK			0xBB
378 #define SECURITY_ERASE_PREPARE		0xBC
379 #define SECURITY_ERASE_UNIT		0xBD
380 #define SECURITY_FREEZE_LOCK		0xBE
381 #define SECURITY_DISABLE_PASSWORD	0xBF
382 
383 struct hd_geometry {
384       unsigned char heads;
385       unsigned char sectors;
386       unsigned short cylinders;
387       unsigned long start;
388 };
389 
390 /* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x030n/0x031n */
391 #define HDIO_GETGEO		0x0301	/* get device geometry */
392 #define HDIO_GET_UNMASKINTR	0x0302	/* get current unmask setting */
393 #define HDIO_GET_MULTCOUNT	0x0304	/* get current IDE blockmode setting */
394 #define HDIO_GET_QDMA		0x0305	/* get use-qdma flag */
395 
396 #define HDIO_SET_XFER		0x0306  /* set transfer rate via proc */
397 
398 #define HDIO_OBSOLETE_IDENTITY	0x0307	/* OBSOLETE, DO NOT USE: returns 142 bytes */
399 #define HDIO_GET_KEEPSETTINGS	0x0308	/* get keep-settings-on-reset flag */
400 #define HDIO_GET_32BIT		0x0309	/* get current io_32bit setting */
401 #define HDIO_GET_NOWERR		0x030a	/* get ignore-write-error flag */
402 #define HDIO_GET_DMA		0x030b	/* get use-dma flag */
403 #define HDIO_GET_NICE		0x030c	/* get nice flags */
404 #define HDIO_GET_IDENTITY	0x030d	/* get IDE identification info */
405 #define HDIO_GET_WCACHE		0x030e	/* get write cache mode on|off */
406 #define HDIO_GET_ACOUSTIC	0x030f	/* get acoustic value */
407 #define	HDIO_GET_ADDRESS	0x0310	/* */
408 
409 #define HDIO_GET_BUSSTATE	0x031a	/* get the bus state of the hwif */
410 #define HDIO_TRISTATE_HWIF	0x031b	/* execute a channel tristate */
411 #define HDIO_DRIVE_RESET	0x031c	/* execute a device reset */
412 #define HDIO_DRIVE_TASKFILE	0x031d	/* execute raw taskfile */
413 #define HDIO_DRIVE_TASK		0x031e	/* execute task and special drive command */
414 #define HDIO_DRIVE_CMD		0x031f	/* execute a special drive command */
415 #define HDIO_DRIVE_CMD_AEB	HDIO_DRIVE_TASK
416 
417 /* hd/ide ctl's that pass (arg) non-ptr values are numbered 0x032n/0x033n */
418 #define HDIO_SET_MULTCOUNT	0x0321	/* change IDE blockmode */
419 #define HDIO_SET_UNMASKINTR	0x0322	/* permit other irqs during I/O */
420 #define HDIO_SET_KEEPSETTINGS	0x0323	/* keep ioctl settings on reset */
421 #define HDIO_SET_32BIT		0x0324	/* change io_32bit flags */
422 #define HDIO_SET_NOWERR		0x0325	/* change ignore-write-error flag */
423 #define HDIO_SET_DMA		0x0326	/* change use-dma flag */
424 #define HDIO_SET_PIO_MODE	0x0327	/* reconfig interface to new speed */
425 #ifndef __KERNEL__
426 #define HDIO_SCAN_HWIF		0x0328	/* register and (re)scan interface */
427 #define HDIO_UNREGISTER_HWIF	0x032a  /* unregister interface */
428 #endif
429 #define HDIO_SET_NICE		0x0329	/* set nice flags */
430 #define HDIO_SET_WCACHE		0x032b	/* change write cache enable-disable */
431 #define HDIO_SET_ACOUSTIC	0x032c	/* change acoustic behavior */
432 #define HDIO_SET_BUSSTATE	0x032d	/* set the bus state of the hwif */
433 #define HDIO_SET_QDMA		0x032e	/* change use-qdma flag */
434 #define HDIO_SET_ADDRESS	0x032f	/* change lba addressing modes */
435 
436 /* bus states */
437 enum {
438 	BUSSTATE_OFF = 0,
439 	BUSSTATE_ON,
440 	BUSSTATE_TRISTATE
441 };
442 
443 /* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x033n/0x033n */
444 /* 0x330 is reserved - used to be HDIO_GETGEO_BIG */
445 /* 0x331 is reserved - used to be HDIO_GETGEO_BIG_RAW */
446 /* 0x338 is reserved - used to be HDIO_SET_IDE_SCSI */
447 /* 0x339 is reserved - used to be HDIO_SET_SCSI_IDE */
448 
449 #define __NEW_HD_DRIVE_ID
450 
451 /*
452  * Structure returned by HDIO_GET_IDENTITY, as per ANSI NCITS ATA6 rev.1b spec.
453  *
454  * If you change something here, please remember to update fix_driveid() in
455  * ide/probe.c.
456  */
457 struct hd_driveid {
458 	unsigned short	config;		/* lots of obsolete bit flags */
459 	unsigned short	cyls;		/* Obsolete, "physical" cyls */
460 	unsigned short	reserved2;	/* reserved (word 2) */
461 	unsigned short	heads;		/* Obsolete, "physical" heads */
462 	unsigned short	track_bytes;	/* unformatted bytes per track */
463 	unsigned short	sector_bytes;	/* unformatted bytes per sector */
464 	unsigned short	sectors;	/* Obsolete, "physical" sectors per track */
465 	unsigned short	vendor0;	/* vendor unique */
466 	unsigned short	vendor1;	/* vendor unique */
467 	unsigned short	vendor2;	/* Retired vendor unique */
468 	unsigned char	serial_no[20];	/* 0 = not_specified */
469 	unsigned short	buf_type;	/* Retired */
470 	unsigned short	buf_size;	/* Retired, 512 byte increments
471 					 * 0 = not_specified
472 					 */
473 	unsigned short	ecc_bytes;	/* for r/w long cmds; 0 = not_specified */
474 	unsigned char	fw_rev[8];	/* 0 = not_specified */
475 	unsigned char	model[40];	/* 0 = not_specified */
476 	unsigned char	max_multsect;	/* 0=not_implemented */
477 	unsigned char	vendor3;	/* vendor unique */
478 	unsigned short	dword_io;	/* 0=not_implemented; 1=implemented */
479 	unsigned char	vendor4;	/* vendor unique */
480 	unsigned char	capability;	/* (upper byte of word 49)
481 					 *  3:	IORDYsup
482 					 *  2:	IORDYsw
483 					 *  1:	LBA
484 					 *  0:	DMA
485 					 */
486 	unsigned short	reserved50;	/* reserved (word 50) */
487 	unsigned char	vendor5;	/* Obsolete, vendor unique */
488 	unsigned char	tPIO;		/* Obsolete, 0=slow, 1=medium, 2=fast */
489 	unsigned char	vendor6;	/* Obsolete, vendor unique */
490 	unsigned char	tDMA;		/* Obsolete, 0=slow, 1=medium, 2=fast */
491 	unsigned short	field_valid;	/* (word 53)
492 					 *  2:	ultra_ok	word  88
493 					 *  1:	eide_ok		words 64-70
494 					 *  0:	cur_ok		words 54-58
495 					 */
496 	unsigned short	cur_cyls;	/* Obsolete, logical cylinders */
497 	unsigned short	cur_heads;	/* Obsolete, l heads */
498 	unsigned short	cur_sectors;	/* Obsolete, l sectors per track */
499 	unsigned short	cur_capacity0;	/* Obsolete, l total sectors on drive */
500 	unsigned short	cur_capacity1;	/* Obsolete, (2 words, misaligned int)     */
501 	unsigned char	multsect;	/* current multiple sector count */
502 	unsigned char	multsect_valid;	/* when (bit0==1) multsect is ok */
503 	unsigned int	lba_capacity;	/* Obsolete, total number of sectors */
504 	unsigned short	dma_1word;	/* Obsolete, single-word dma info */
505 	unsigned short	dma_mword;	/* multiple-word dma info */
506 	unsigned short  eide_pio_modes; /* bits 0:mode3 1:mode4 */
507 	unsigned short  eide_dma_min;	/* min mword dma cycle time (ns) */
508 	unsigned short  eide_dma_time;	/* recommended mword dma cycle time (ns) */
509 	unsigned short  eide_pio;       /* min cycle time (ns), no IORDY  */
510 	unsigned short  eide_pio_iordy; /* min cycle time (ns), with IORDY */
511 	unsigned short	words69_70[2];	/* reserved words 69-70
512 					 * future command overlap and queuing
513 					 */
514 	unsigned short	words71_74[4];	/* reserved words 71-74
515 					 * for IDENTIFY PACKET DEVICE command
516 					 */
517 	unsigned short  queue_depth;	/* (word 75)
518 					 * 15:5	reserved
519 					 *  4:0	Maximum queue depth -1
520 					 */
521 	unsigned short  words76_79[4];	/* reserved words 76-79 */
522 	unsigned short  major_rev_num;	/* (word 80) */
523 	unsigned short  minor_rev_num;	/* (word 81) */
524 	unsigned short  command_set_1;	/* (word 82) supported
525 					 * 15:	Obsolete
526 					 * 14:	NOP command
527 					 * 13:	READ_BUFFER
528 					 * 12:	WRITE_BUFFER
529 					 * 11:	Obsolete
530 					 * 10:	Host Protected Area
531 					 *  9:	DEVICE Reset
532 					 *  8:	SERVICE Interrupt
533 					 *  7:	Release Interrupt
534 					 *  6:	look-ahead
535 					 *  5:	write cache
536 					 *  4:	PACKET Command
537 					 *  3:	Power Management Feature Set
538 					 *  2:	Removable Feature Set
539 					 *  1:	Security Feature Set
540 					 *  0:	SMART Feature Set
541 					 */
542 	unsigned short  command_set_2;	/* (word 83)
543 					 * 15:	Shall be ZERO
544 					 * 14:	Shall be ONE
545 					 * 13:	FLUSH CACHE EXT
546 					 * 12:	FLUSH CACHE
547 					 * 11:	Device Configuration Overlay
548 					 * 10:	48-bit Address Feature Set
549 					 *  9:	Automatic Acoustic Management
550 					 *  8:	SET MAX security
551 					 *  7:	reserved 1407DT PARTIES
552 					 *  6:	SetF sub-command Power-Up
553 					 *  5:	Power-Up in Standby Feature Set
554 					 *  4:	Removable Media Notification
555 					 *  3:	APM Feature Set
556 					 *  2:	CFA Feature Set
557 					 *  1:	READ/WRITE DMA QUEUED
558 					 *  0:	Download MicroCode
559 					 */
560 	unsigned short  cfsse;		/* (word 84)
561 					 * cmd set-feature supported extensions
562 					 * 15:	Shall be ZERO
563 					 * 14:	Shall be ONE
564 					 * 13:6	reserved
565 					 *  5:	General Purpose Logging
566 					 *  4:	Streaming Feature Set
567 					 *  3:	Media Card Pass Through
568 					 *  2:	Media Serial Number Valid
569 					 *  1:	SMART selt-test supported
570 					 *  0:	SMART error logging
571 					 */
572 	unsigned short  cfs_enable_1;	/* (word 85)
573 					 * command set-feature enabled
574 					 * 15:	Obsolete
575 					 * 14:	NOP command
576 					 * 13:	READ_BUFFER
577 					 * 12:	WRITE_BUFFER
578 					 * 11:	Obsolete
579 					 * 10:	Host Protected Area
580 					 *  9:	DEVICE Reset
581 					 *  8:	SERVICE Interrupt
582 					 *  7:	Release Interrupt
583 					 *  6:	look-ahead
584 					 *  5:	write cache
585 					 *  4:	PACKET Command
586 					 *  3:	Power Management Feature Set
587 					 *  2:	Removable Feature Set
588 					 *  1:	Security Feature Set
589 					 *  0:	SMART Feature Set
590 					 */
591 	unsigned short  cfs_enable_2;	/* (word 86)
592 					 * command set-feature enabled
593 					 * 15:	Shall be ZERO
594 					 * 14:	Shall be ONE
595 					 * 13:	FLUSH CACHE EXT
596 					 * 12:	FLUSH CACHE
597 					 * 11:	Device Configuration Overlay
598 					 * 10:	48-bit Address Feature Set
599 					 *  9:	Automatic Acoustic Management
600 					 *  8:	SET MAX security
601 					 *  7:	reserved 1407DT PARTIES
602 					 *  6:	SetF sub-command Power-Up
603 					 *  5:	Power-Up in Standby Feature Set
604 					 *  4:	Removable Media Notification
605 					 *  3:	APM Feature Set
606 					 *  2:	CFA Feature Set
607 					 *  1:	READ/WRITE DMA QUEUED
608 					 *  0:	Download MicroCode
609 					 */
610 	unsigned short  csf_default;	/* (word 87)
611 					 * command set-feature default
612 					 * 15:	Shall be ZERO
613 					 * 14:	Shall be ONE
614 					 * 13:6	reserved
615 					 *  5:	General Purpose Logging enabled
616 					 *  4:	Valid CONFIGURE STREAM executed
617 					 *  3:	Media Card Pass Through enabled
618 					 *  2:	Media Serial Number Valid
619 					 *  1:	SMART selt-test supported
620 					 *  0:	SMART error logging
621 					 */
622 	unsigned short  dma_ultra;	/* (word 88) */
623 	unsigned short	trseuc;		/* time required for security erase */
624 	unsigned short	trsEuc;		/* time required for enhanced erase */
625 	unsigned short	CurAPMvalues;	/* current APM values */
626 	unsigned short	mprc;		/* master password revision code */
627 	unsigned short	hw_config;	/* hardware config (word 93)
628 					 * 15:	Shall be ZERO
629 					 * 14:	Shall be ONE
630 					 * 13:
631 					 * 12:
632 					 * 11:
633 					 * 10:
634 					 *  9:
635 					 *  8:
636 					 *  7:
637 					 *  6:
638 					 *  5:
639 					 *  4:
640 					 *  3:
641 					 *  2:
642 					 *  1:
643 					 *  0:	Shall be ONE
644 					 */
645 	unsigned short	acoustic;	/* (word 94)
646 					 * 15:8	Vendor's recommended value
647 					 *  7:0	current value
648 					 */
649 	unsigned short	msrqs;		/* min stream request size */
650 	unsigned short	sxfert;		/* stream transfer time */
651 	unsigned short	sal;		/* stream access latency */
652 	unsigned int	spg;		/* stream performance granularity */
653 	unsigned long long lba_capacity_2;/* 48-bit total number of sectors */
654 	unsigned short	words104_125[22];/* reserved words 104-125 */
655 	unsigned short	last_lun;	/* (word 126) */
656 	unsigned short	word127;	/* (word 127) Feature Set
657 					 * Removable Media Notification
658 					 * 15:2	reserved
659 					 *  1:0	00 = not supported
660 					 *	01 = supported
661 					 *	10 = reserved
662 					 *	11 = reserved
663 					 */
664 	unsigned short	dlf;		/* (word 128)
665 					 * device lock function
666 					 * 15:9	reserved
667 					 *  8	security level 1:max 0:high
668 					 *  7:6	reserved
669 					 *  5	enhanced erase
670 					 *  4	expire
671 					 *  3	frozen
672 					 *  2	locked
673 					 *  1	en/disabled
674 					 *  0	capability
675 					 */
676 	unsigned short  csfo;		/*  (word 129)
677 					 * current set features options
678 					 * 15:4	reserved
679 					 *  3:	auto reassign
680 					 *  2:	reverting
681 					 *  1:	read-look-ahead
682 					 *  0:	write cache
683 					 */
684 	unsigned short	words130_155[26];/* reserved vendor words 130-155 */
685 	unsigned short	word156;	/* reserved vendor word 156 */
686 	unsigned short	words157_159[3];/* reserved vendor words 157-159 */
687 	unsigned short	cfa_power;	/* (word 160) CFA Power Mode
688 					 * 15 word 160 supported
689 					 * 14 reserved
690 					 * 13
691 					 * 12
692 					 * 11:0
693 					 */
694 	unsigned short	words161_175[15];/* Reserved for CFA */
695 	unsigned short	words176_205[30];/* Current Media Serial Number */
696 	unsigned short	words206_254[49];/* reserved words 206-254 */
697 	unsigned short	integrity_word;	/* (word 255)
698 					 * 15:8 Checksum
699 					 *  7:0 Signature
700 					 */
701 };
702 
703 /*
704  * IDE "nice" flags. These are used on a per drive basis to determine
705  * when to be nice and give more bandwidth to the other devices which
706  * share the same IDE bus.
707  */
708 #define IDE_NICE_DSC_OVERLAP	(0)	/* per the DSC overlap protocol */
709 #define IDE_NICE_ATAPI_OVERLAP	(1)	/* not supported yet */
710 #define IDE_NICE_1		(3)	/* when probably won't affect us much */
711 #ifndef __KERNEL__
712 #define IDE_NICE_0		(2)	/* when sure that it won't affect us */
713 #define IDE_NICE_2		(4)	/* when we know it's on our expense */
714 #endif
715 
716 #endif	/* _LINUX_HDREG_H */
717