[PATCH] knfsd: ratelimit some nfsd messages that are triggered by external events
[linux-2.6.git] / include / linux / hdreg.h
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 TRK0_ERR                0x02    /* couldn't find track 0 */
48 #define ABRT_ERR                0x04    /* Command aborted */
49 #define MCR_ERR                 0x08    /* media change request */
50 #define ID_ERR                  0x10    /* ID field not found */
51 #define MC_ERR                  0x20    /* media changed */
52 #define ECC_ERR                 0x40    /* Uncorrectable ECC error */
53 #define BBD_ERR                 0x80    /* pre-EIDE meaning:  block marked bad */
54 #define ICRC_ERR                0x80    /* new meaning:  CRC error during transfer */
55
56 /* Bits of HD_NSECTOR */
57 #define CD                      0x01
58 #define IO                      0x02
59 #define REL                     0x04
60 #define TAG_MASK                0xf8
61 #endif /* __KERNEL__ */
62
63 /*
64  * Command Header sizes for IOCTL commands
65  */
66
67 #define HDIO_DRIVE_CMD_HDR_SIZE         (4 * sizeof(u8))
68 #define HDIO_DRIVE_HOB_HDR_SIZE         (8 * sizeof(u8))
69 #define HDIO_DRIVE_TASK_HDR_SIZE        (8 * sizeof(u8))
70
71 #define IDE_DRIVE_TASK_INVALID          -1
72 #define IDE_DRIVE_TASK_NO_DATA          0
73 #define IDE_DRIVE_TASK_SET_XFER         1
74
75 #define IDE_DRIVE_TASK_IN               2
76
77 #define IDE_DRIVE_TASK_OUT              3
78 #define IDE_DRIVE_TASK_RAW_WRITE        4
79
80 /*
81  * Define standard taskfile in/out register
82  */
83 #define IDE_TASKFILE_STD_IN_FLAGS       0xFE
84 #define IDE_HOB_STD_IN_FLAGS            0x3C
85 #ifndef __KERNEL__
86 #define IDE_TASKFILE_STD_OUT_FLAGS      0xFE
87 #define IDE_HOB_STD_OUT_FLAGS           0x3C
88 #endif
89
90 typedef unsigned char task_ioreg_t;
91 typedef unsigned long sata_ioreg_t;
92
93 typedef union ide_reg_valid_s {
94         unsigned all                            : 16;
95         struct {
96                 unsigned data                   : 1;
97                 unsigned error_feature          : 1;
98                 unsigned sector                 : 1;
99                 unsigned nsector                : 1;
100                 unsigned lcyl                   : 1;
101                 unsigned hcyl                   : 1;
102                 unsigned select                 : 1;
103                 unsigned status_command         : 1;
104
105                 unsigned data_hob               : 1;
106                 unsigned error_feature_hob      : 1;
107                 unsigned sector_hob             : 1;
108                 unsigned nsector_hob            : 1;
109                 unsigned lcyl_hob               : 1;
110                 unsigned hcyl_hob               : 1;
111                 unsigned select_hob             : 1;
112                 unsigned control_hob            : 1;
113         } b;
114 } ide_reg_valid_t;
115
116 typedef struct ide_task_request_s {
117         task_ioreg_t    io_ports[8];
118         task_ioreg_t    hob_ports[8];
119         ide_reg_valid_t out_flags;
120         ide_reg_valid_t in_flags;
121         int             data_phase;
122         int             req_cmd;
123         unsigned long   out_size;
124         unsigned long   in_size;
125 } ide_task_request_t;
126
127 typedef struct ide_ioctl_request_s {
128         ide_task_request_t      *task_request;
129         unsigned char           *out_buffer;
130         unsigned char           *in_buffer;
131 } ide_ioctl_request_t;
132
133 struct hd_drive_cmd_hdr {
134         task_ioreg_t command;
135         task_ioreg_t sector_number;
136         task_ioreg_t feature;
137         task_ioreg_t sector_count;
138 };
139
140 typedef struct hd_drive_task_hdr {
141         task_ioreg_t data;
142         task_ioreg_t feature;
143         task_ioreg_t sector_count;
144         task_ioreg_t sector_number;
145         task_ioreg_t low_cylinder;
146         task_ioreg_t high_cylinder;
147         task_ioreg_t device_head;
148         task_ioreg_t command;
149 } task_struct_t;
150
151 typedef struct hd_drive_hob_hdr {
152         task_ioreg_t data;
153         task_ioreg_t feature;
154         task_ioreg_t sector_count;
155         task_ioreg_t sector_number;
156         task_ioreg_t low_cylinder;
157         task_ioreg_t high_cylinder;
158         task_ioreg_t device_head;
159         task_ioreg_t control;
160 } hob_struct_t;
161
162 #define TASKFILE_INVALID                0x7fff
163 #define TASKFILE_48                     0x8000
164
165 #define TASKFILE_NO_DATA                0x0000
166
167 #define TASKFILE_IN                     0x0001
168 #define TASKFILE_MULTI_IN               0x0002
169
170 #define TASKFILE_OUT                    0x0004
171 #define TASKFILE_MULTI_OUT              0x0008
172 #define TASKFILE_IN_OUT                 0x0010
173
174 #define TASKFILE_IN_DMA                 0x0020
175 #define TASKFILE_OUT_DMA                0x0040
176 #define TASKFILE_IN_DMAQ                0x0080
177 #define TASKFILE_OUT_DMAQ               0x0100
178
179 #define TASKFILE_P_IN                   0x0200
180 #define TASKFILE_P_OUT                  0x0400
181 #define TASKFILE_P_IN_DMA               0x0800
182 #define TASKFILE_P_OUT_DMA              0x1000
183 #define TASKFILE_P_IN_DMAQ              0x2000
184 #define TASKFILE_P_OUT_DMAQ             0x4000
185
186 /* ATA/ATAPI Commands pre T13 Spec */
187 #define WIN_NOP                         0x00
188 /*
189  *      0x01->0x02 Reserved
190  */
191 #define CFA_REQ_EXT_ERROR_CODE          0x03 /* CFA Request Extended Error Code */
192 /*
193  *      0x04->0x07 Reserved
194  */
195 #define WIN_SRST                        0x08 /* ATAPI soft reset command */
196 #define WIN_DEVICE_RESET                0x08
197 /*
198  *      0x09->0x0F Reserved
199  */
200 #define WIN_RECAL                       0x10
201 #define WIN_RESTORE                     WIN_RECAL
202 /*
203  *      0x10->0x1F Reserved
204  */
205 #define WIN_READ                        0x20 /* 28-Bit */
206 #define WIN_READ_ONCE                   0x21 /* 28-Bit without retries */
207 #define WIN_READ_LONG                   0x22 /* 28-Bit */
208 #define WIN_READ_LONG_ONCE              0x23 /* 28-Bit without retries */
209 #define WIN_READ_EXT                    0x24 /* 48-Bit */
210 #define WIN_READDMA_EXT                 0x25 /* 48-Bit */
211 #define WIN_READDMA_QUEUED_EXT          0x26 /* 48-Bit */
212 #define WIN_READ_NATIVE_MAX_EXT         0x27 /* 48-Bit */
213 /*
214  *      0x28
215  */
216 #define WIN_MULTREAD_EXT                0x29 /* 48-Bit */
217 /*
218  *      0x2A->0x2F Reserved
219  */
220 #define WIN_WRITE                       0x30 /* 28-Bit */
221 #define WIN_WRITE_ONCE                  0x31 /* 28-Bit without retries */
222 #define WIN_WRITE_LONG                  0x32 /* 28-Bit */
223 #define WIN_WRITE_LONG_ONCE             0x33 /* 28-Bit without retries */
224 #define WIN_WRITE_EXT                   0x34 /* 48-Bit */
225 #define WIN_WRITEDMA_EXT                0x35 /* 48-Bit */
226 #define WIN_WRITEDMA_QUEUED_EXT         0x36 /* 48-Bit */
227 #define WIN_SET_MAX_EXT                 0x37 /* 48-Bit */
228 #define CFA_WRITE_SECT_WO_ERASE         0x38 /* CFA Write Sectors without erase */
229 #define WIN_MULTWRITE_EXT               0x39 /* 48-Bit */
230 /*
231  *      0x3A->0x3B Reserved
232  */
233 #define WIN_WRITE_VERIFY                0x3C /* 28-Bit */
234 /*
235  *      0x3D->0x3F Reserved
236  */
237 #define WIN_VERIFY                      0x40 /* 28-Bit - Read Verify Sectors */
238 #define WIN_VERIFY_ONCE                 0x41 /* 28-Bit - without retries */
239 #define WIN_VERIFY_EXT                  0x42 /* 48-Bit */
240 /*
241  *      0x43->0x4F Reserved
242  */
243 #define WIN_FORMAT                      0x50
244 /*
245  *      0x51->0x5F Reserved
246  */
247 #define WIN_INIT                        0x60
248 /*
249  *      0x61->0x5F Reserved
250  */
251 #define WIN_SEEK                        0x70 /* 0x70-0x7F Reserved */
252
253 #define CFA_TRANSLATE_SECTOR            0x87 /* CFA Translate Sector */
254 #define WIN_DIAGNOSE                    0x90
255 #define WIN_SPECIFY                     0x91 /* set drive geometry translation */
256 #define WIN_DOWNLOAD_MICROCODE          0x92
257 #define WIN_STANDBYNOW2                 0x94
258 #define WIN_STANDBY2                    0x96
259 #define WIN_SETIDLE2                    0x97
260 #define WIN_CHECKPOWERMODE2             0x98
261 #define WIN_SLEEPNOW2                   0x99
262 /*
263  *      0x9A VENDOR
264  */
265 #define WIN_PACKETCMD                   0xA0 /* Send a packet command. */
266 #define WIN_PIDENTIFY                   0xA1 /* identify ATAPI device   */
267 #define WIN_QUEUED_SERVICE              0xA2
268 #define WIN_SMART                       0xB0 /* self-monitoring and reporting */
269 #define CFA_ERASE_SECTORS               0xC0
270 #define WIN_MULTREAD                    0xC4 /* read sectors using multiple mode*/
271 #define WIN_MULTWRITE                   0xC5 /* write sectors using multiple mode */
272 #define WIN_SETMULT                     0xC6 /* enable/disable multiple mode */
273 #define WIN_READDMA_QUEUED              0xC7 /* read sectors using Queued DMA transfers */
274 #define WIN_READDMA                     0xC8 /* read sectors using DMA transfers */
275 #define WIN_READDMA_ONCE                0xC9 /* 28-Bit - without retries */
276 #define WIN_WRITEDMA                    0xCA /* write sectors using DMA transfers */
277 #define WIN_WRITEDMA_ONCE               0xCB /* 28-Bit - without retries */
278 #define WIN_WRITEDMA_QUEUED             0xCC /* write sectors using Queued DMA transfers */
279 #define CFA_WRITE_MULTI_WO_ERASE        0xCD /* CFA Write multiple without erase */
280 #define WIN_GETMEDIASTATUS              0xDA
281 #define WIN_ACKMEDIACHANGE              0xDB /* ATA-1, ATA-2 vendor */
282 #define WIN_POSTBOOT                    0xDC
283 #define WIN_PREBOOT                     0xDD
284 #define WIN_DOORLOCK                    0xDE /* lock door on removable drives */
285 #define WIN_DOORUNLOCK                  0xDF /* unlock door on removable drives */
286 #define WIN_STANDBYNOW1                 0xE0
287 #define WIN_IDLEIMMEDIATE               0xE1 /* force drive to become "ready" */
288 #define WIN_STANDBY                     0xE2 /* Set device in Standby Mode */
289 #define WIN_SETIDLE1                    0xE3
290 #define WIN_READ_BUFFER                 0xE4 /* force read only 1 sector */
291 #define WIN_CHECKPOWERMODE1             0xE5
292 #define WIN_SLEEPNOW1                   0xE6
293 #define WIN_FLUSH_CACHE                 0xE7
294 #define WIN_WRITE_BUFFER                0xE8 /* force write only 1 sector */
295 #define WIN_WRITE_SAME                  0xE9 /* read ata-2 to use */
296         /* SET_FEATURES 0x22 or 0xDD */
297 #define WIN_FLUSH_CACHE_EXT             0xEA /* 48-Bit */
298 #define WIN_IDENTIFY                    0xEC /* ask drive to identify itself    */
299 #define WIN_MEDIAEJECT                  0xED
300 #define WIN_IDENTIFY_DMA                0xEE /* same as WIN_IDENTIFY, but DMA */
301 #define WIN_SETFEATURES                 0xEF /* set special drive features */
302 #define EXABYTE_ENABLE_NEST             0xF0
303 #define WIN_SECURITY_SET_PASS           0xF1
304 #define WIN_SECURITY_UNLOCK             0xF2
305 #define WIN_SECURITY_ERASE_PREPARE      0xF3
306 #define WIN_SECURITY_ERASE_UNIT         0xF4
307 #define WIN_SECURITY_FREEZE_LOCK        0xF5
308 #define WIN_SECURITY_DISABLE            0xF6
309 #define WIN_READ_NATIVE_MAX             0xF8 /* return the native maximum address */
310 #define WIN_SET_MAX                     0xF9
311 #define DISABLE_SEAGATE                 0xFB
312
313 /* WIN_SMART sub-commands */
314
315 #define SMART_READ_VALUES               0xD0
316 #define SMART_READ_THRESHOLDS           0xD1
317 #define SMART_AUTOSAVE                  0xD2
318 #define SMART_SAVE                      0xD3
319 #define SMART_IMMEDIATE_OFFLINE         0xD4
320 #define SMART_READ_LOG_SECTOR           0xD5
321 #define SMART_WRITE_LOG_SECTOR          0xD6
322 #define SMART_WRITE_THRESHOLDS          0xD7
323 #define SMART_ENABLE                    0xD8
324 #define SMART_DISABLE                   0xD9
325 #define SMART_STATUS                    0xDA
326 #define SMART_AUTO_OFFLINE              0xDB
327
328 /* Password used in TF4 & TF5 executing SMART commands */
329
330 #define SMART_LCYL_PASS                 0x4F
331 #define SMART_HCYL_PASS                 0xC2
332
333 /* WIN_SETFEATURES sub-commands */
334 #define SETFEATURES_EN_8BIT     0x01    /* Enable 8-Bit Transfers */
335 #define SETFEATURES_EN_WCACHE   0x02    /* Enable write cache */
336 #define SETFEATURES_DIS_DEFECT  0x04    /* Disable Defect Management */
337 #define SETFEATURES_EN_APM      0x05    /* Enable advanced power management */
338 #define SETFEATURES_EN_SAME_R   0x22    /* for a region ATA-1 */
339 #define SETFEATURES_DIS_MSN     0x31    /* Disable Media Status Notification */
340 #define SETFEATURES_DIS_RETRY   0x33    /* Disable Retry */
341 #define SETFEATURES_EN_AAM      0x42    /* Enable Automatic Acoustic Management */
342 #define SETFEATURES_RW_LONG     0x44    /* Set Length of VS bytes */
343 #define SETFEATURES_SET_CACHE   0x54    /* Set Cache segments to SC Reg. Val */
344 #define SETFEATURES_DIS_RLA     0x55    /* Disable read look-ahead feature */
345 #define SETFEATURES_EN_RI       0x5D    /* Enable release interrupt */
346 #define SETFEATURES_EN_SI       0x5E    /* Enable SERVICE interrupt */
347 #define SETFEATURES_DIS_RPOD    0x66    /* Disable reverting to power on defaults */
348 #define SETFEATURES_DIS_ECC     0x77    /* Disable ECC byte count */
349 #define SETFEATURES_DIS_8BIT    0x81    /* Disable 8-Bit Transfers */
350 #define SETFEATURES_DIS_WCACHE  0x82    /* Disable write cache */
351 #define SETFEATURES_EN_DEFECT   0x84    /* Enable Defect Management */
352 #define SETFEATURES_DIS_APM     0x85    /* Disable advanced power management */
353 #define SETFEATURES_EN_ECC      0x88    /* Enable ECC byte count */
354 #define SETFEATURES_EN_MSN      0x95    /* Enable Media Status Notification */
355 #define SETFEATURES_EN_RETRY    0x99    /* Enable Retry */
356 #define SETFEATURES_EN_RLA      0xAA    /* Enable read look-ahead feature */
357 #define SETFEATURES_PREFETCH    0xAB    /* Sets drive prefetch value */
358 #define SETFEATURES_EN_REST     0xAC    /* ATA-1 */
359 #define SETFEATURES_4B_RW_LONG  0xBB    /* Set Lenght of 4 bytes */
360 #define SETFEATURES_DIS_AAM     0xC2    /* Disable Automatic Acoustic Management */
361 #define SETFEATURES_EN_RPOD     0xCC    /* Enable reverting to power on defaults */
362 #define SETFEATURES_DIS_RI      0xDD    /* Disable release interrupt ATAPI */
363 #define SETFEATURES_EN_SAME_M   0xDD    /* for a entire device ATA-1 */
364 #define SETFEATURES_DIS_SI      0xDE    /* Disable SERVICE interrupt ATAPI */
365
366 /* WIN_SECURITY sub-commands */
367
368 #define SECURITY_SET_PASSWORD           0xBA
369 #define SECURITY_UNLOCK                 0xBB
370 #define SECURITY_ERASE_PREPARE          0xBC
371 #define SECURITY_ERASE_UNIT             0xBD
372 #define SECURITY_FREEZE_LOCK            0xBE
373 #define SECURITY_DISABLE_PASSWORD       0xBF
374
375 struct hd_geometry {
376       unsigned char heads;
377       unsigned char sectors;
378       unsigned short cylinders;
379       unsigned long start;
380 };
381
382 /* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x030n/0x031n */
383 #define HDIO_GETGEO             0x0301  /* get device geometry */
384 #define HDIO_GET_UNMASKINTR     0x0302  /* get current unmask setting */
385 #define HDIO_GET_MULTCOUNT      0x0304  /* get current IDE blockmode setting */
386 #define HDIO_GET_QDMA           0x0305  /* get use-qdma flag */
387
388 #define HDIO_SET_XFER           0x0306  /* set transfer rate via proc */
389
390 #define HDIO_OBSOLETE_IDENTITY  0x0307  /* OBSOLETE, DO NOT USE: returns 142 bytes */
391 #define HDIO_GET_KEEPSETTINGS   0x0308  /* get keep-settings-on-reset flag */
392 #define HDIO_GET_32BIT          0x0309  /* get current io_32bit setting */
393 #define HDIO_GET_NOWERR         0x030a  /* get ignore-write-error flag */
394 #define HDIO_GET_DMA            0x030b  /* get use-dma flag */
395 #define HDIO_GET_NICE           0x030c  /* get nice flags */
396 #define HDIO_GET_IDENTITY       0x030d  /* get IDE identification info */
397 #define HDIO_GET_WCACHE         0x030e  /* get write cache mode on|off */
398 #define HDIO_GET_ACOUSTIC       0x030f  /* get acoustic value */
399 #define HDIO_GET_ADDRESS        0x0310  /* */
400
401 #define HDIO_GET_BUSSTATE       0x031a  /* get the bus state of the hwif */
402 #define HDIO_TRISTATE_HWIF      0x031b  /* execute a channel tristate */
403 #define HDIO_DRIVE_RESET        0x031c  /* execute a device reset */
404 #define HDIO_DRIVE_TASKFILE     0x031d  /* execute raw taskfile */
405 #define HDIO_DRIVE_TASK         0x031e  /* execute task and special drive command */
406 #define HDIO_DRIVE_CMD          0x031f  /* execute a special drive command */
407 #define HDIO_DRIVE_CMD_AEB      HDIO_DRIVE_TASK
408
409 /* hd/ide ctl's that pass (arg) non-ptr values are numbered 0x032n/0x033n */
410 #define HDIO_SET_MULTCOUNT      0x0321  /* change IDE blockmode */
411 #define HDIO_SET_UNMASKINTR     0x0322  /* permit other irqs during I/O */
412 #define HDIO_SET_KEEPSETTINGS   0x0323  /* keep ioctl settings on reset */
413 #define HDIO_SET_32BIT          0x0324  /* change io_32bit flags */
414 #define HDIO_SET_NOWERR         0x0325  /* change ignore-write-error flag */
415 #define HDIO_SET_DMA            0x0326  /* change use-dma flag */
416 #define HDIO_SET_PIO_MODE       0x0327  /* reconfig interface to new speed */
417 #define HDIO_SCAN_HWIF          0x0328  /* register and (re)scan interface */
418 #define HDIO_SET_NICE           0x0329  /* set nice flags */
419 #define HDIO_UNREGISTER_HWIF    0x032a  /* unregister interface */
420 #define HDIO_SET_WCACHE         0x032b  /* change write cache enable-disable */
421 #define HDIO_SET_ACOUSTIC       0x032c  /* change acoustic behavior */
422 #define HDIO_SET_BUSSTATE       0x032d  /* set the bus state of the hwif */
423 #define HDIO_SET_QDMA           0x032e  /* change use-qdma flag */
424 #define HDIO_SET_ADDRESS        0x032f  /* change lba addressing modes */
425
426 /* bus states */
427 enum {
428         BUSSTATE_OFF = 0,
429         BUSSTATE_ON,
430         BUSSTATE_TRISTATE
431 };
432
433 /* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x033n/0x033n */
434 /* 0x330 is reserved - used to be HDIO_GETGEO_BIG */
435 /* 0x331 is reserved - used to be HDIO_GETGEO_BIG_RAW */
436 /* 0x338 is reserved - used to be HDIO_SET_IDE_SCSI */
437 /* 0x339 is reserved - used to be HDIO_SET_SCSI_IDE */
438
439 #define __NEW_HD_DRIVE_ID
440
441 /*
442  * Structure returned by HDIO_GET_IDENTITY, as per ANSI NCITS ATA6 rev.1b spec.
443  *
444  * If you change something here, please remember to update fix_driveid() in
445  * ide/probe.c.
446  */
447 struct hd_driveid {
448         unsigned short  config;         /* lots of obsolete bit flags */
449         unsigned short  cyls;           /* Obsolete, "physical" cyls */
450         unsigned short  reserved2;      /* reserved (word 2) */
451         unsigned short  heads;          /* Obsolete, "physical" heads */
452         unsigned short  track_bytes;    /* unformatted bytes per track */
453         unsigned short  sector_bytes;   /* unformatted bytes per sector */
454         unsigned short  sectors;        /* Obsolete, "physical" sectors per track */
455         unsigned short  vendor0;        /* vendor unique */
456         unsigned short  vendor1;        /* vendor unique */
457         unsigned short  vendor2;        /* Retired vendor unique */
458         unsigned char   serial_no[20];  /* 0 = not_specified */
459         unsigned short  buf_type;       /* Retired */
460         unsigned short  buf_size;       /* Retired, 512 byte increments
461                                          * 0 = not_specified
462                                          */
463         unsigned short  ecc_bytes;      /* for r/w long cmds; 0 = not_specified */
464         unsigned char   fw_rev[8];      /* 0 = not_specified */
465         unsigned char   model[40];      /* 0 = not_specified */
466         unsigned char   max_multsect;   /* 0=not_implemented */
467         unsigned char   vendor3;        /* vendor unique */
468         unsigned short  dword_io;       /* 0=not_implemented; 1=implemented */
469         unsigned char   vendor4;        /* vendor unique */
470         unsigned char   capability;     /* (upper byte of word 49)
471                                          *  3:  IORDYsup
472                                          *  2:  IORDYsw
473                                          *  1:  LBA
474                                          *  0:  DMA
475                                          */
476         unsigned short  reserved50;     /* reserved (word 50) */
477         unsigned char   vendor5;        /* Obsolete, vendor unique */
478         unsigned char   tPIO;           /* Obsolete, 0=slow, 1=medium, 2=fast */
479         unsigned char   vendor6;        /* Obsolete, vendor unique */
480         unsigned char   tDMA;           /* Obsolete, 0=slow, 1=medium, 2=fast */
481         unsigned short  field_valid;    /* (word 53)
482                                          *  2:  ultra_ok        word  88
483                                          *  1:  eide_ok         words 64-70
484                                          *  0:  cur_ok          words 54-58
485                                          */
486         unsigned short  cur_cyls;       /* Obsolete, logical cylinders */
487         unsigned short  cur_heads;      /* Obsolete, l heads */
488         unsigned short  cur_sectors;    /* Obsolete, l sectors per track */
489         unsigned short  cur_capacity0;  /* Obsolete, l total sectors on drive */
490         unsigned short  cur_capacity1;  /* Obsolete, (2 words, misaligned int)     */
491         unsigned char   multsect;       /* current multiple sector count */
492         unsigned char   multsect_valid; /* when (bit0==1) multsect is ok */
493         unsigned int    lba_capacity;   /* Obsolete, total number of sectors */
494         unsigned short  dma_1word;      /* Obsolete, single-word dma info */
495         unsigned short  dma_mword;      /* multiple-word dma info */
496         unsigned short  eide_pio_modes; /* bits 0:mode3 1:mode4 */
497         unsigned short  eide_dma_min;   /* min mword dma cycle time (ns) */
498         unsigned short  eide_dma_time;  /* recommended mword dma cycle time (ns) */
499         unsigned short  eide_pio;       /* min cycle time (ns), no IORDY  */
500         unsigned short  eide_pio_iordy; /* min cycle time (ns), with IORDY */
501         unsigned short  words69_70[2];  /* reserved words 69-70
502                                          * future command overlap and queuing
503                                          */
504         /* HDIO_GET_IDENTITY currently returns only words 0 through 70 */
505         unsigned short  words71_74[4];  /* reserved words 71-74
506                                          * for IDENTIFY PACKET DEVICE command
507                                          */
508         unsigned short  queue_depth;    /* (word 75)
509                                          * 15:5 reserved
510                                          *  4:0 Maximum queue depth -1
511                                          */
512         unsigned short  words76_79[4];  /* reserved words 76-79 */
513         unsigned short  major_rev_num;  /* (word 80) */
514         unsigned short  minor_rev_num;  /* (word 81) */
515         unsigned short  command_set_1;  /* (word 82) supported
516                                          * 15:  Obsolete
517                                          * 14:  NOP command
518                                          * 13:  READ_BUFFER
519                                          * 12:  WRITE_BUFFER
520                                          * 11:  Obsolete
521                                          * 10:  Host Protected Area
522                                          *  9:  DEVICE Reset
523                                          *  8:  SERVICE Interrupt
524                                          *  7:  Release Interrupt
525                                          *  6:  look-ahead
526                                          *  5:  write cache
527                                          *  4:  PACKET Command
528                                          *  3:  Power Management Feature Set
529                                          *  2:  Removable Feature Set
530                                          *  1:  Security Feature Set
531                                          *  0:  SMART Feature Set
532                                          */
533         unsigned short  command_set_2;  /* (word 83)
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  cfsse;          /* (word 84)
552                                          * cmd set-feature supported extensions
553                                          * 15:  Shall be ZERO
554                                          * 14:  Shall be ONE
555                                          * 13:6 reserved
556                                          *  5:  General Purpose Logging
557                                          *  4:  Streaming Feature Set
558                                          *  3:  Media Card Pass Through
559                                          *  2:  Media Serial Number Valid
560                                          *  1:  SMART selt-test supported
561                                          *  0:  SMART error logging
562                                          */
563         unsigned short  cfs_enable_1;   /* (word 85)
564                                          * command set-feature enabled
565                                          * 15:  Obsolete
566                                          * 14:  NOP command
567                                          * 13:  READ_BUFFER
568                                          * 12:  WRITE_BUFFER
569                                          * 11:  Obsolete
570                                          * 10:  Host Protected Area
571                                          *  9:  DEVICE Reset
572                                          *  8:  SERVICE Interrupt
573                                          *  7:  Release Interrupt
574                                          *  6:  look-ahead
575                                          *  5:  write cache
576                                          *  4:  PACKET Command
577                                          *  3:  Power Management Feature Set
578                                          *  2:  Removable Feature Set
579                                          *  1:  Security Feature Set
580                                          *  0:  SMART Feature Set
581                                          */
582         unsigned short  cfs_enable_2;   /* (word 86)
583                                          * command set-feature enabled
584                                          * 15:  Shall be ZERO
585                                          * 14:  Shall be ONE
586                                          * 13:  FLUSH CACHE EXT
587                                          * 12:  FLUSH CACHE
588                                          * 11:  Device Configuration Overlay
589                                          * 10:  48-bit Address Feature Set
590                                          *  9:  Automatic Acoustic Management
591                                          *  8:  SET MAX security
592                                          *  7:  reserved 1407DT PARTIES
593                                          *  6:  SetF sub-command Power-Up
594                                          *  5:  Power-Up in Standby Feature Set
595                                          *  4:  Removable Media Notification
596                                          *  3:  APM Feature Set
597                                          *  2:  CFA Feature Set
598                                          *  1:  READ/WRITE DMA QUEUED
599                                          *  0:  Download MicroCode
600                                          */
601         unsigned short  csf_default;    /* (word 87)
602                                          * command set-feature default
603                                          * 15:  Shall be ZERO
604                                          * 14:  Shall be ONE
605                                          * 13:6 reserved
606                                          *  5:  General Purpose Logging enabled
607                                          *  4:  Valid CONFIGURE STREAM executed
608                                          *  3:  Media Card Pass Through enabled
609                                          *  2:  Media Serial Number Valid
610                                          *  1:  SMART selt-test supported
611                                          *  0:  SMART error logging
612                                          */
613         unsigned short  dma_ultra;      /* (word 88) */
614         unsigned short  trseuc;         /* time required for security erase */
615         unsigned short  trsEuc;         /* time required for enhanced erase */
616         unsigned short  CurAPMvalues;   /* current APM values */
617         unsigned short  mprc;           /* master password revision code */
618         unsigned short  hw_config;      /* hardware config (word 93)
619                                          * 15:  Shall be ZERO
620                                          * 14:  Shall be ONE
621                                          * 13:
622                                          * 12:
623                                          * 11:
624                                          * 10:
625                                          *  9:
626                                          *  8:
627                                          *  7:
628                                          *  6:
629                                          *  5:
630                                          *  4:
631                                          *  3:
632                                          *  2:
633                                          *  1:
634                                          *  0:  Shall be ONE
635                                          */
636         unsigned short  acoustic;       /* (word 94)
637                                          * 15:8 Vendor's recommended value
638                                          *  7:0 current value
639                                          */
640         unsigned short  msrqs;          /* min stream request size */
641         unsigned short  sxfert;         /* stream transfer time */
642         unsigned short  sal;            /* stream access latency */
643         unsigned int    spg;            /* stream performance granularity */
644         unsigned long long lba_capacity_2;/* 48-bit total number of sectors */
645         unsigned short  words104_125[22];/* reserved words 104-125 */
646         unsigned short  last_lun;       /* (word 126) */
647         unsigned short  word127;        /* (word 127) Feature Set
648                                          * Removable Media Notification
649                                          * 15:2 reserved
650                                          *  1:0 00 = not supported
651                                          *      01 = supported
652                                          *      10 = reserved
653                                          *      11 = reserved
654                                          */
655         unsigned short  dlf;            /* (word 128)
656                                          * device lock function
657                                          * 15:9 reserved
658                                          *  8   security level 1:max 0:high
659                                          *  7:6 reserved
660                                          *  5   enhanced erase
661                                          *  4   expire
662                                          *  3   frozen
663                                          *  2   locked
664                                          *  1   en/disabled
665                                          *  0   capability
666                                          */
667         unsigned short  csfo;           /*  (word 129)
668                                          * current set features options
669                                          * 15:4 reserved
670                                          *  3:  auto reassign
671                                          *  2:  reverting
672                                          *  1:  read-look-ahead
673                                          *  0:  write cache
674                                          */
675         unsigned short  words130_155[26];/* reserved vendor words 130-155 */
676         unsigned short  word156;        /* reserved vendor word 156 */
677         unsigned short  words157_159[3];/* reserved vendor words 157-159 */
678         unsigned short  cfa_power;      /* (word 160) CFA Power Mode
679                                          * 15 word 160 supported
680                                          * 14 reserved
681                                          * 13
682                                          * 12
683                                          * 11:0
684                                          */
685         unsigned short  words161_175[15];/* Reserved for CFA */
686         unsigned short  words176_205[30];/* Current Media Serial Number */
687         unsigned short  words206_254[49];/* reserved words 206-254 */
688         unsigned short  integrity_word; /* (word 255)
689                                          * 15:8 Checksum
690                                          *  7:0 Signature
691                                          */
692 };
693
694 /*
695  * IDE "nice" flags. These are used on a per drive basis to determine
696  * when to be nice and give more bandwidth to the other devices which
697  * share the same IDE bus.
698  */
699 #define IDE_NICE_DSC_OVERLAP    (0)     /* per the DSC overlap protocol */
700 #define IDE_NICE_ATAPI_OVERLAP  (1)     /* not supported yet */
701 #define IDE_NICE_0              (2)     /* when sure that it won't affect us */
702 #define IDE_NICE_1              (3)     /* when probably won't affect us much */
703 #define IDE_NICE_2              (4)     /* when we know it's on our expense */
704
705 #endif  /* _LINUX_HDREG_H */