3 * Copyright 2003-2004 Red Hat, Inc. All rights reserved.
4 * Copyright 2003-2004 Jeff Garzik
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2, or (at your option)
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; see the file COPYING. If not, write to
19 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
22 * libata documentation is available via 'make {ps|pdf}docs',
23 * as Documentation/DocBook/libata.*
25 * Hardware documentation available from http://www.t13.org/
29 #ifndef __LINUX_ATA_H__
30 #define __LINUX_ATA_H__
32 #include <linux/kernel.h>
33 #include <linux/string.h>
34 #include <linux/types.h>
35 #include <asm/byteorder.h>
37 /* defines only for the constants which don't work well as enums */
38 #define ATA_DMA_BOUNDARY 0xffffUL
39 #define ATA_DMA_MASK 0xffffffffULL
42 /* various global constants */
43 ATA_MAX_DEVICES
= 2, /* per bus/port */
44 ATA_MAX_PRD
= 256, /* we could make these 256/256 */
46 ATA_MAX_SECTORS_128
= 128,
47 ATA_MAX_SECTORS
= 256,
48 ATA_MAX_SECTORS_LBA48
= 65535,/* TODO: 65536? */
49 ATA_MAX_SECTORS_TAPE
= 65535,
60 ATA_ID_MAX_MULTSECT
= 47,
62 ATA_ID_CAPABILITY
= 49,
63 ATA_ID_OLD_PIO_MODES
= 51,
64 ATA_ID_OLD_DMA_MODES
= 52,
65 ATA_ID_FIELD_VALID
= 53,
67 ATA_ID_CUR_HEADS
= 55,
68 ATA_ID_CUR_SECTORS
= 56,
70 ATA_ID_LBA_CAPACITY
= 60,
71 ATA_ID_SWDMA_MODES
= 62,
72 ATA_ID_MWDMA_MODES
= 63,
73 ATA_ID_PIO_MODES
= 64,
74 ATA_ID_EIDE_DMA_MIN
= 65,
75 ATA_ID_EIDE_DMA_TIME
= 66,
77 ATA_ID_EIDE_PIO_IORDY
= 68,
78 ATA_ID_ADDITIONAL_SUPP
= 69,
79 ATA_ID_QUEUE_DEPTH
= 75,
80 ATA_ID_SATA_CAPABILITY
= 76,
81 ATA_ID_SATA_CAPABILITY_2
= 77,
82 ATA_ID_FEATURE_SUPP
= 78,
83 ATA_ID_MAJOR_VER
= 80,
84 ATA_ID_COMMAND_SET_1
= 82,
85 ATA_ID_COMMAND_SET_2
= 83,
87 ATA_ID_CFS_ENABLE_1
= 85,
88 ATA_ID_CFS_ENABLE_2
= 86,
89 ATA_ID_CSF_DEFAULT
= 87,
90 ATA_ID_UDMA_MODES
= 88,
91 ATA_ID_HW_CONFIG
= 93,
93 ATA_ID_LBA_CAPACITY_2
= 100,
94 ATA_ID_SECTOR_SIZE
= 106,
96 ATA_ID_LOGICAL_SECTOR_SIZE
= 117, /* and 118 */
97 ATA_ID_LAST_LUN
= 126,
100 ATA_ID_CFA_POWER
= 160,
101 ATA_ID_CFA_KEY_MGMT
= 162,
102 ATA_ID_CFA_MODES
= 163,
103 ATA_ID_DATA_SET_MGMT
= 169,
104 ATA_ID_ROT_SPEED
= 217,
105 ATA_ID_PIO4
= (1 << 1),
107 ATA_ID_SERNO_LEN
= 20,
108 ATA_ID_FW_REV_LEN
= 8,
109 ATA_ID_PROD_LEN
= 40,
115 ATA_PIO1
= ATA_PIO0
| (1 << 1),
116 ATA_PIO2
= ATA_PIO1
| (1 << 2),
117 ATA_PIO3
= ATA_PIO2
| (1 << 3),
118 ATA_PIO4
= ATA_PIO3
| (1 << 4),
119 ATA_PIO5
= ATA_PIO4
| (1 << 5),
120 ATA_PIO6
= ATA_PIO5
| (1 << 6),
122 ATA_PIO4_ONLY
= (1 << 4),
124 ATA_SWDMA0
= (1 << 0),
125 ATA_SWDMA1
= ATA_SWDMA0
| (1 << 1),
126 ATA_SWDMA2
= ATA_SWDMA1
| (1 << 2),
128 ATA_SWDMA2_ONLY
= (1 << 2),
130 ATA_MWDMA0
= (1 << 0),
131 ATA_MWDMA1
= ATA_MWDMA0
| (1 << 1),
132 ATA_MWDMA2
= ATA_MWDMA1
| (1 << 2),
133 ATA_MWDMA3
= ATA_MWDMA2
| (1 << 3),
134 ATA_MWDMA4
= ATA_MWDMA3
| (1 << 4),
136 ATA_MWDMA12_ONLY
= (1 << 1) | (1 << 2),
137 ATA_MWDMA2_ONLY
= (1 << 2),
139 ATA_UDMA0
= (1 << 0),
140 ATA_UDMA1
= ATA_UDMA0
| (1 << 1),
141 ATA_UDMA2
= ATA_UDMA1
| (1 << 2),
142 ATA_UDMA3
= ATA_UDMA2
| (1 << 3),
143 ATA_UDMA4
= ATA_UDMA3
| (1 << 4),
144 ATA_UDMA5
= ATA_UDMA4
| (1 << 5),
145 ATA_UDMA6
= ATA_UDMA5
| (1 << 6),
146 ATA_UDMA7
= ATA_UDMA6
| (1 << 7),
147 /* ATA_UDMA7 is just for completeness... doesn't exist (yet?). */
149 ATA_UDMA24_ONLY
= (1 << 2) | (1 << 4),
151 ATA_UDMA_MASK_40C
= ATA_UDMA2
, /* udma0-2 */
155 ATA_PRD_TBL_SZ
= (ATA_MAX_PRD
* ATA_PRD_SZ
),
156 ATA_PRD_EOT
= (1 << 31), /* end-of-table flag */
158 ATA_DMA_TABLE_OFS
= 4,
161 ATA_DMA_WR
= (1 << 3),
162 ATA_DMA_START
= (1 << 0),
163 ATA_DMA_INTR
= (1 << 2),
164 ATA_DMA_ERR
= (1 << 1),
165 ATA_DMA_ACTIVE
= (1 << 0),
167 /* bits in ATA command block registers */
168 ATA_HOB
= (1 << 7), /* LBA48 selector */
169 ATA_NIEN
= (1 << 1), /* disable-irq flag */
170 ATA_LBA
= (1 << 6), /* LBA28 selector */
171 ATA_DEV1
= (1 << 4), /* Select Device 1 (slave) */
172 ATA_DEVICE_OBS
= (1 << 7) | (1 << 5), /* obs bits in dev reg */
173 ATA_DEVCTL_OBS
= (1 << 3), /* obsolete bit in devctl reg */
174 ATA_BUSY
= (1 << 7), /* BSY status bit */
175 ATA_DRDY
= (1 << 6), /* device ready */
176 ATA_DF
= (1 << 5), /* device fault */
177 ATA_DSC
= (1 << 4), /* drive seek complete */
178 ATA_DRQ
= (1 << 3), /* data request i/o */
179 ATA_CORR
= (1 << 2), /* corrected data error */
180 ATA_IDX
= (1 << 1), /* index */
181 ATA_ERR
= (1 << 0), /* have an error */
182 ATA_SRST
= (1 << 2), /* software reset */
183 ATA_ICRC
= (1 << 7), /* interface CRC error */
184 ATA_BBK
= ATA_ICRC
, /* pre-EIDE: block marked bad */
185 ATA_UNC
= (1 << 6), /* uncorrectable media error */
186 ATA_MC
= (1 << 5), /* media changed */
187 ATA_IDNF
= (1 << 4), /* ID not found */
188 ATA_MCR
= (1 << 3), /* media change requested */
189 ATA_ABORTED
= (1 << 2), /* command aborted */
190 ATA_TRK0NF
= (1 << 1), /* track 0 not found */
191 ATA_AMNF
= (1 << 0), /* address mark not found */
192 ATAPI_LFS
= 0xF0, /* last failed sense */
193 ATAPI_EOM
= ATA_TRK0NF
, /* end of media */
194 ATAPI_ILI
= ATA_AMNF
, /* illegal length indication */
196 ATAPI_COD
= (1 << 0),
198 /* ATA command block registers */
201 ATA_REG_NSECT
= 0x02,
205 ATA_REG_DEVICE
= 0x06,
206 ATA_REG_STATUS
= 0x07,
208 ATA_REG_FEATURE
= ATA_REG_ERR
, /* and their aliases */
209 ATA_REG_CMD
= ATA_REG_STATUS
,
210 ATA_REG_BYTEL
= ATA_REG_LBAM
,
211 ATA_REG_BYTEH
= ATA_REG_LBAH
,
212 ATA_REG_DEVSEL
= ATA_REG_DEVICE
,
213 ATA_REG_IRQ
= ATA_REG_NSECT
,
215 /* ATA device commands */
216 ATA_CMD_DEV_RESET
= 0x08, /* ATAPI device reset */
217 ATA_CMD_CHK_POWER
= 0xE5, /* check power mode */
218 ATA_CMD_STANDBY
= 0xE2, /* place in standby power mode */
219 ATA_CMD_IDLE
= 0xE3, /* place in idle power mode */
220 ATA_CMD_EDD
= 0x90, /* execute device diagnostic */
221 ATA_CMD_DOWNLOAD_MICRO
= 0x92,
223 ATA_CMD_FLUSH
= 0xE7,
224 ATA_CMD_FLUSH_EXT
= 0xEA,
225 ATA_CMD_ID_ATA
= 0xEC,
226 ATA_CMD_ID_ATAPI
= 0xA1,
227 ATA_CMD_SERVICE
= 0xA2,
229 ATA_CMD_READ_EXT
= 0x25,
230 ATA_CMD_READ_QUEUED
= 0x26,
231 ATA_CMD_READ_STREAM_EXT
= 0x2B,
232 ATA_CMD_READ_STREAM_DMA_EXT
= 0x2A,
233 ATA_CMD_WRITE
= 0xCA,
234 ATA_CMD_WRITE_EXT
= 0x35,
235 ATA_CMD_WRITE_QUEUED
= 0x36,
236 ATA_CMD_WRITE_STREAM_EXT
= 0x3B,
237 ATA_CMD_WRITE_STREAM_DMA_EXT
= 0x3A,
238 ATA_CMD_WRITE_FUA_EXT
= 0x3D,
239 ATA_CMD_WRITE_QUEUED_FUA_EXT
= 0x3E,
240 ATA_CMD_FPDMA_READ
= 0x60,
241 ATA_CMD_FPDMA_WRITE
= 0x61,
242 ATA_CMD_PIO_READ
= 0x20,
243 ATA_CMD_PIO_READ_EXT
= 0x24,
244 ATA_CMD_PIO_WRITE
= 0x30,
245 ATA_CMD_PIO_WRITE_EXT
= 0x34,
246 ATA_CMD_READ_MULTI
= 0xC4,
247 ATA_CMD_READ_MULTI_EXT
= 0x29,
248 ATA_CMD_WRITE_MULTI
= 0xC5,
249 ATA_CMD_WRITE_MULTI_EXT
= 0x39,
250 ATA_CMD_WRITE_MULTI_FUA_EXT
= 0xCE,
251 ATA_CMD_SET_FEATURES
= 0xEF,
252 ATA_CMD_SET_MULTI
= 0xC6,
253 ATA_CMD_PACKET
= 0xA0,
254 ATA_CMD_VERIFY
= 0x40,
255 ATA_CMD_VERIFY_EXT
= 0x42,
256 ATA_CMD_WRITE_UNCORR_EXT
= 0x45,
257 ATA_CMD_STANDBYNOW1
= 0xE0,
258 ATA_CMD_IDLEIMMEDIATE
= 0xE1,
259 ATA_CMD_SLEEP
= 0xE6,
260 ATA_CMD_INIT_DEV_PARAMS
= 0x91,
261 ATA_CMD_READ_NATIVE_MAX
= 0xF8,
262 ATA_CMD_READ_NATIVE_MAX_EXT
= 0x27,
263 ATA_CMD_SET_MAX
= 0xF9,
264 ATA_CMD_SET_MAX_EXT
= 0x37,
265 ATA_CMD_READ_LOG_EXT
= 0x2F,
266 ATA_CMD_WRITE_LOG_EXT
= 0x3F,
267 ATA_CMD_READ_LOG_DMA_EXT
= 0x47,
268 ATA_CMD_WRITE_LOG_DMA_EXT
= 0x57,
269 ATA_CMD_TRUSTED_RCV
= 0x5C,
270 ATA_CMD_TRUSTED_RCV_DMA
= 0x5D,
271 ATA_CMD_TRUSTED_SND
= 0x5E,
272 ATA_CMD_TRUSTED_SND_DMA
= 0x5F,
273 ATA_CMD_PMP_READ
= 0xE4,
274 ATA_CMD_PMP_WRITE
= 0xE8,
275 ATA_CMD_CONF_OVERLAY
= 0xB1,
276 ATA_CMD_SEC_SET_PASS
= 0xF1,
277 ATA_CMD_SEC_UNLOCK
= 0xF2,
278 ATA_CMD_SEC_ERASE_PREP
= 0xF3,
279 ATA_CMD_SEC_ERASE_UNIT
= 0xF4,
280 ATA_CMD_SEC_FREEZE_LOCK
= 0xF5,
281 ATA_CMD_SEC_DISABLE_PASS
= 0xF6,
282 ATA_CMD_CONFIG_STREAM
= 0x51,
283 ATA_CMD_SMART
= 0xB0,
284 ATA_CMD_MEDIA_LOCK
= 0xDE,
285 ATA_CMD_MEDIA_UNLOCK
= 0xDF,
287 ATA_CMD_CHK_MED_CRD_TYP
= 0xD1,
288 ATA_CMD_CFA_REQ_EXT_ERR
= 0x03,
289 ATA_CMD_CFA_WRITE_NE
= 0x38,
290 ATA_CMD_CFA_TRANS_SECT
= 0x87,
291 ATA_CMD_CFA_ERASE
= 0xC0,
292 ATA_CMD_CFA_WRITE_MULT_NE
= 0xCD,
293 /* marked obsolete in the ATA/ATAPI-7 spec */
294 ATA_CMD_RESTORE
= 0x10,
296 /* READ_LOG_EXT pages */
297 ATA_LOG_SATA_NCQ
= 0x10,
298 ATA_LOG_SATA_ID_DEV_DATA
= 0x30,
299 ATA_LOG_SATA_SETTINGS
= 0x08,
300 ATA_LOG_DEVSLP_OFFSET
= 0x30,
301 ATA_LOG_DEVSLP_SIZE
= 0x08,
302 ATA_LOG_DEVSLP_MDAT
= 0x00,
303 ATA_LOG_DEVSLP_MDAT_MASK
= 0x1F,
304 ATA_LOG_DEVSLP_DETO
= 0x01,
305 ATA_LOG_DEVSLP_VALID
= 0x07,
306 ATA_LOG_DEVSLP_VALID_MASK
= 0x80,
308 /* READ/WRITE LONG (obsolete) */
309 ATA_CMD_READ_LONG
= 0x22,
310 ATA_CMD_READ_LONG_ONCE
= 0x23,
311 ATA_CMD_WRITE_LONG
= 0x32,
312 ATA_CMD_WRITE_LONG_ONCE
= 0x33,
314 /* SETFEATURES stuff */
315 SETFEATURES_XFER
= 0x03,
324 XFER_MW_DMA_4
= 0x24, /* CFA only */
325 XFER_MW_DMA_3
= 0x23, /* CFA only */
326 XFER_MW_DMA_2
= 0x22,
327 XFER_MW_DMA_1
= 0x21,
328 XFER_MW_DMA_0
= 0x20,
329 XFER_SW_DMA_2
= 0x12,
330 XFER_SW_DMA_1
= 0x11,
331 XFER_SW_DMA_0
= 0x10,
332 XFER_PIO_6
= 0x0E, /* CFA only */
333 XFER_PIO_5
= 0x0D, /* CFA only */
339 XFER_PIO_SLOW
= 0x00,
341 SETFEATURES_WC_ON
= 0x02, /* Enable write cache */
342 SETFEATURES_WC_OFF
= 0x82, /* Disable write cache */
344 /* Enable/Disable Automatic Acoustic Management */
345 SETFEATURES_AAM_ON
= 0x42,
346 SETFEATURES_AAM_OFF
= 0xC2,
348 SETFEATURES_SPINUP
= 0x07, /* Spin-up drive */
350 SETFEATURES_SATA_ENABLE
= 0x10, /* Enable use of SATA feature */
351 SETFEATURES_SATA_DISABLE
= 0x90, /* Disable use of SATA feature */
353 /* SETFEATURE Sector counts for SATA features */
354 SATA_FPDMA_OFFSET
= 0x01, /* FPDMA non-zero buffer offsets */
355 SATA_FPDMA_AA
= 0x02, /* FPDMA Setup FIS Auto-Activate */
356 SATA_DIPM
= 0x03, /* Device Initiated Power Management */
357 SATA_FPDMA_IN_ORDER
= 0x04, /* FPDMA in-order data delivery */
358 SATA_AN
= 0x05, /* Asynchronous Notification */
359 SATA_SSP
= 0x06, /* Software Settings Preservation */
360 SATA_DEVSLP
= 0x09, /* Device Sleep */
362 /* feature values for SET_MAX */
363 ATA_SET_MAX_ADDR
= 0x00,
364 ATA_SET_MAX_PASSWD
= 0x01,
365 ATA_SET_MAX_LOCK
= 0x02,
366 ATA_SET_MAX_UNLOCK
= 0x03,
367 ATA_SET_MAX_FREEZE_LOCK
= 0x04,
369 /* feature values for DEVICE CONFIGURATION OVERLAY */
370 ATA_DCO_RESTORE
= 0xC0,
371 ATA_DCO_FREEZE_LOCK
= 0xC1,
372 ATA_DCO_IDENTIFY
= 0xC2,
375 /* feature values for SMART */
376 ATA_SMART_ENABLE
= 0xD8,
377 ATA_SMART_READ_VALUES
= 0xD0,
378 ATA_SMART_READ_THRESHOLDS
= 0xD1,
380 /* feature values for Data Set Management */
383 /* password used in LBA Mid / LBA High for executing SMART commands */
384 ATA_SMART_LBAM_PASS
= 0x4F,
385 ATA_SMART_LBAH_PASS
= 0xC2,
388 ATAPI_PKT_DMA
= (1 << 0),
389 ATAPI_DMADIR
= (1 << 2), /* ATAPI data dir:
390 0=to device, 1=to host */
394 SATA_PMP_MAX_PORTS
= 15,
395 SATA_PMP_CTRL_PORT
= 15,
397 SATA_PMP_GSCR_DWORDS
= 128,
398 SATA_PMP_GSCR_PROD_ID
= 0,
399 SATA_PMP_GSCR_REV
= 1,
400 SATA_PMP_GSCR_PORT_INFO
= 2,
401 SATA_PMP_GSCR_ERROR
= 32,
402 SATA_PMP_GSCR_ERROR_EN
= 33,
403 SATA_PMP_GSCR_FEAT
= 64,
404 SATA_PMP_GSCR_FEAT_EN
= 96,
406 SATA_PMP_PSCR_STATUS
= 0,
407 SATA_PMP_PSCR_ERROR
= 1,
408 SATA_PMP_PSCR_CONTROL
= 2,
410 SATA_PMP_FEAT_BIST
= (1 << 0),
411 SATA_PMP_FEAT_PMREQ
= (1 << 1),
412 SATA_PMP_FEAT_DYNSSC
= (1 << 2),
413 SATA_PMP_FEAT_NOTIFY
= (1 << 3),
419 ATA_CBL_PATA40_SHORT
= 3, /* 40 wire cable to high UDMA spec */
420 ATA_CBL_PATA_UNK
= 4, /* don't know, maybe 80c? */
421 ATA_CBL_PATA_IGN
= 5, /* don't know, ignore cable handling */
424 /* SATA Status and Control Registers */
429 SCR_NOTIFICATION
= 4,
432 SERR_DATA_RECOVERED
= (1 << 0), /* recovered data error */
433 SERR_COMM_RECOVERED
= (1 << 1), /* recovered comm failure */
434 SERR_DATA
= (1 << 8), /* unrecovered data error */
435 SERR_PERSISTENT
= (1 << 9), /* persistent data/comm error */
436 SERR_PROTOCOL
= (1 << 10), /* protocol violation */
437 SERR_INTERNAL
= (1 << 11), /* host internal error */
438 SERR_PHYRDY_CHG
= (1 << 16), /* PHY RDY changed */
439 SERR_PHY_INT_ERR
= (1 << 17), /* PHY internal error */
440 SERR_COMM_WAKE
= (1 << 18), /* Comm wake */
441 SERR_10B_8B_ERR
= (1 << 19), /* 10b to 8b decode error */
442 SERR_DISPARITY
= (1 << 20), /* Disparity */
443 SERR_CRC
= (1 << 21), /* CRC error */
444 SERR_HANDSHAKE
= (1 << 22), /* Handshake error */
445 SERR_LINK_SEQ_ERR
= (1 << 23), /* Link sequence error */
446 SERR_TRANS_ST_ERROR
= (1 << 24), /* Transport state trans. error */
447 SERR_UNRECOG_FIS
= (1 << 25), /* Unrecognized FIS */
448 SERR_DEV_XCHG
= (1 << 26), /* device exchanged */
450 /* struct ata_taskfile flags */
451 ATA_TFLAG_LBA48
= (1 << 0), /* enable 48-bit LBA and "HOB" */
452 ATA_TFLAG_ISADDR
= (1 << 1), /* enable r/w to nsect/lba regs */
453 ATA_TFLAG_DEVICE
= (1 << 2), /* enable r/w to device reg */
454 ATA_TFLAG_WRITE
= (1 << 3), /* data dir: host->dev==1 (write) */
455 ATA_TFLAG_LBA
= (1 << 4), /* enable LBA */
456 ATA_TFLAG_FUA
= (1 << 5), /* enable FUA */
457 ATA_TFLAG_POLLING
= (1 << 6), /* set nIEN to 1 and use polling */
460 ATA_PROT_FLAG_PIO
= (1 << 0), /* is PIO */
461 ATA_PROT_FLAG_DMA
= (1 << 1), /* is DMA */
462 ATA_PROT_FLAG_DATA
= ATA_PROT_FLAG_PIO
| ATA_PROT_FLAG_DMA
,
463 ATA_PROT_FLAG_NCQ
= (1 << 2), /* is NCQ */
464 ATA_PROT_FLAG_ATAPI
= (1 << 3), /* is ATAPI */
467 enum ata_tf_protocols
{
468 /* ATA taskfile protocols */
469 ATA_PROT_UNKNOWN
, /* unknown/invalid */
470 ATA_PROT_NODATA
, /* no data */
471 ATA_PROT_PIO
, /* PIO data xfer */
472 ATA_PROT_DMA
, /* DMA */
473 ATA_PROT_NCQ
, /* NCQ */
474 ATAPI_PROT_NODATA
, /* packet command, no data */
475 ATAPI_PROT_PIO
, /* packet command, PIO data xfer*/
476 ATAPI_PROT_DMA
, /* packet command with special DMA sauce */
480 ATA_IOC_GET_IO32
= 0x309, /* HDIO_GET_32BIT */
481 ATA_IOC_SET_IO32
= 0x324, /* HDIO_SET_32BIT */
484 /* core structures */
486 struct ata_bmdma_prd
{
491 struct ata_taskfile
{
492 unsigned long flags
; /* ATA_TFLAG_xxx */
493 u8 protocol
; /* ATA_PROT_xxx */
495 u8 ctl
; /* control reg */
497 u8 hob_feature
; /* additional data */
498 u8 hob_nsect
; /* to support LBA48 */
511 u8 command
; /* IO operation */
517 static inline unsigned int ata_prot_flags(u8 prot
)
520 case ATA_PROT_NODATA
:
523 return ATA_PROT_FLAG_PIO
;
525 return ATA_PROT_FLAG_DMA
;
527 return ATA_PROT_FLAG_DMA
| ATA_PROT_FLAG_NCQ
;
528 case ATAPI_PROT_NODATA
:
529 return ATA_PROT_FLAG_ATAPI
;
531 return ATA_PROT_FLAG_ATAPI
| ATA_PROT_FLAG_PIO
;
533 return ATA_PROT_FLAG_ATAPI
| ATA_PROT_FLAG_DMA
;
538 static inline int ata_is_atapi(u8 prot
)
540 return ata_prot_flags(prot
) & ATA_PROT_FLAG_ATAPI
;
543 static inline int ata_is_nodata(u8 prot
)
545 return !(ata_prot_flags(prot
) & ATA_PROT_FLAG_DATA
);
548 static inline int ata_is_pio(u8 prot
)
550 return ata_prot_flags(prot
) & ATA_PROT_FLAG_PIO
;
553 static inline int ata_is_dma(u8 prot
)
555 return ata_prot_flags(prot
) & ATA_PROT_FLAG_DMA
;
558 static inline int ata_is_ncq(u8 prot
)
560 return ata_prot_flags(prot
) & ATA_PROT_FLAG_NCQ
;
563 static inline int ata_is_data(u8 prot
)
565 return ata_prot_flags(prot
) & ATA_PROT_FLAG_DATA
;
571 #define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0)
572 #define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9))
573 #define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (1 << 8))
574 #define ata_id_has_ncq(id) ((id)[ATA_ID_SATA_CAPABILITY] & (1 << 8))
575 #define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1)
576 #define ata_id_removeable(id) ((id)[ATA_ID_CONFIG] & (1 << 7))
577 #define ata_id_has_atapi_AN(id) \
578 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
579 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
580 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 5)))
581 #define ata_id_has_fpdma_aa(id) \
582 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
583 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
584 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 2)))
585 #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10))
586 #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11))
587 #define ata_id_u32(id,n) \
588 (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)]))
589 #define ata_id_u64(id,n) \
590 ( ((u64) (id)[(n) + 3] << 48) | \
591 ((u64) (id)[(n) + 2] << 32) | \
592 ((u64) (id)[(n) + 1] << 16) | \
593 ((u64) (id)[(n) + 0]) )
595 #define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20)
596 #define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4))
597 #define ata_id_has_devslp(id) ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8))
599 static inline bool ata_id_has_hipm(const u16
*id
)
601 u16 val
= id
[ATA_ID_SATA_CAPABILITY
];
603 if (val
== 0 || val
== 0xffff)
606 return val
& (1 << 9);
609 static inline bool ata_id_has_dipm(const u16
*id
)
611 u16 val
= id
[ATA_ID_FEATURE_SUPP
];
613 if (val
== 0 || val
== 0xffff)
616 return val
& (1 << 3);
620 static inline bool ata_id_has_fua(const u16
*id
)
622 if ((id
[ATA_ID_CFSSE
] & 0xC000) != 0x4000)
624 return id
[ATA_ID_CFSSE
] & (1 << 6);
627 static inline bool ata_id_has_flush(const u16
*id
)
629 if ((id
[ATA_ID_COMMAND_SET_2
] & 0xC000) != 0x4000)
631 return id
[ATA_ID_COMMAND_SET_2
] & (1 << 12);
634 static inline bool ata_id_flush_enabled(const u16
*id
)
636 if (ata_id_has_flush(id
) == 0)
638 if ((id
[ATA_ID_CSF_DEFAULT
] & 0xC000) != 0x4000)
640 return id
[ATA_ID_CFS_ENABLE_2
] & (1 << 12);
643 static inline bool ata_id_has_flush_ext(const u16
*id
)
645 if ((id
[ATA_ID_COMMAND_SET_2
] & 0xC000) != 0x4000)
647 return id
[ATA_ID_COMMAND_SET_2
] & (1 << 13);
650 static inline bool ata_id_flush_ext_enabled(const u16
*id
)
652 if (ata_id_has_flush_ext(id
) == 0)
654 if ((id
[ATA_ID_CSF_DEFAULT
] & 0xC000) != 0x4000)
657 * some Maxtor disks have bit 13 defined incorrectly
658 * so check bit 10 too
660 return (id
[ATA_ID_CFS_ENABLE_2
] & 0x2400) == 0x2400;
663 static inline u32
ata_id_logical_sector_size(const u16
*id
)
665 /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128.
666 * IDENTIFY DEVICE data, word 117-118.
667 * 0xd000 ignores bit 13 (logical:physical > 1)
669 if ((id
[ATA_ID_SECTOR_SIZE
] & 0xd000) == 0x5000)
670 return (((id
[ATA_ID_LOGICAL_SECTOR_SIZE
+1] << 16)
671 + id
[ATA_ID_LOGICAL_SECTOR_SIZE
]) * sizeof(u16
)) ;
672 return ATA_SECT_SIZE
;
675 static inline u8
ata_id_log2_per_physical_sector(const u16
*id
)
677 /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128.
678 * IDENTIFY DEVICE data, word 106.
679 * 0xe000 ignores bit 12 (logical sector > 512 bytes)
681 if ((id
[ATA_ID_SECTOR_SIZE
] & 0xe000) == 0x6000)
682 return (id
[ATA_ID_SECTOR_SIZE
] & 0xf);
686 /* Offset of logical sectors relative to physical sectors.
688 * If device has more than one logical sector per physical sector
689 * (aka 512 byte emulation), vendors might offset the "sector 0" address
690 * so sector 63 is "naturally aligned" - e.g. FAT partition table.
691 * This avoids Read/Mod/Write penalties when using FAT partition table
692 * and updating "well aligned" (FS perspective) physical sectors on every
695 static inline u16
ata_id_logical_sector_offset(const u16
*id
,
698 u16 word_209
= id
[209];
700 if ((log2_per_phys
> 1) && (word_209
& 0xc000) == 0x4000) {
701 u16 first
= word_209
& 0x3fff;
703 return (1 << log2_per_phys
) - first
;
708 static inline bool ata_id_has_lba48(const u16
*id
)
710 if ((id
[ATA_ID_COMMAND_SET_2
] & 0xC000) != 0x4000)
712 if (!ata_id_u64(id
, ATA_ID_LBA_CAPACITY_2
))
714 return id
[ATA_ID_COMMAND_SET_2
] & (1 << 10);
717 static inline bool ata_id_lba48_enabled(const u16
*id
)
719 if (ata_id_has_lba48(id
) == 0)
721 if ((id
[ATA_ID_CSF_DEFAULT
] & 0xC000) != 0x4000)
723 return id
[ATA_ID_CFS_ENABLE_2
] & (1 << 10);
726 static inline bool ata_id_hpa_enabled(const u16
*id
)
728 /* Yes children, word 83 valid bits cover word 82 data */
729 if ((id
[ATA_ID_COMMAND_SET_2
] & 0xC000) != 0x4000)
731 /* And 87 covers 85-87 */
732 if ((id
[ATA_ID_CSF_DEFAULT
] & 0xC000) != 0x4000)
734 /* Check command sets enabled as well as supported */
735 if ((id
[ATA_ID_CFS_ENABLE_1
] & (1 << 10)) == 0)
737 return id
[ATA_ID_COMMAND_SET_1
] & (1 << 10);
740 static inline bool ata_id_has_wcache(const u16
*id
)
742 /* Yes children, word 83 valid bits cover word 82 data */
743 if ((id
[ATA_ID_COMMAND_SET_2
] & 0xC000) != 0x4000)
745 return id
[ATA_ID_COMMAND_SET_1
] & (1 << 5);
748 static inline bool ata_id_has_pm(const u16
*id
)
750 if ((id
[ATA_ID_COMMAND_SET_2
] & 0xC000) != 0x4000)
752 return id
[ATA_ID_COMMAND_SET_1
] & (1 << 3);
755 static inline bool ata_id_rahead_enabled(const u16
*id
)
757 if ((id
[ATA_ID_CSF_DEFAULT
] & 0xC000) != 0x4000)
759 return id
[ATA_ID_CFS_ENABLE_1
] & (1 << 6);
762 static inline bool ata_id_wcache_enabled(const u16
*id
)
764 if ((id
[ATA_ID_CSF_DEFAULT
] & 0xC000) != 0x4000)
766 return id
[ATA_ID_CFS_ENABLE_1
] & (1 << 5);
770 * ata_id_major_version - get ATA level of drive
774 * ATA-1 considers identify optional
775 * ATA-2 introduces mandatory identify
776 * ATA-3 introduces word 80 and accurate reporting
778 * The practical impact of this is that ata_id_major_version cannot
779 * reliably report on drives below ATA3.
782 static inline unsigned int ata_id_major_version(const u16
*id
)
786 if (id
[ATA_ID_MAJOR_VER
] == 0xFFFF)
789 for (mver
= 14; mver
>= 1; mver
--)
790 if (id
[ATA_ID_MAJOR_VER
] & (1 << mver
))
795 static inline bool ata_id_is_sata(const u16
*id
)
798 * See if word 93 is 0 AND drive is at least ATA-5 compatible
799 * verifying that word 80 by casting it to a signed type --
800 * this trick allows us to filter out the reserved values of
801 * 0x0000 and 0xffff along with the earlier ATA revisions...
803 if (id
[ATA_ID_HW_CONFIG
] == 0 && (short)id
[ATA_ID_MAJOR_VER
] >= 0x0020)
808 static inline bool ata_id_has_tpm(const u16
*id
)
810 /* The TPM bits are only valid on ATA8 */
811 if (ata_id_major_version(id
) < 8)
813 if ((id
[48] & 0xC000) != 0x4000)
815 return id
[48] & (1 << 0);
818 static inline bool ata_id_has_dword_io(const u16
*id
)
820 /* ATA 8 reuses this flag for "trusted" computing */
821 if (ata_id_major_version(id
) > 7)
823 return id
[ATA_ID_DWORD_IO
] & (1 << 0);
826 static inline bool ata_id_has_unload(const u16
*id
)
828 if (ata_id_major_version(id
) >= 7 &&
829 (id
[ATA_ID_CFSSE
] & 0xC000) == 0x4000 &&
830 id
[ATA_ID_CFSSE
] & (1 << 13))
835 static inline bool ata_id_has_wwn(const u16
*id
)
837 return (id
[ATA_ID_CSF_DEFAULT
] & 0xC100) == 0x4100;
840 static inline int ata_id_form_factor(const u16
*id
)
844 if (ata_id_major_version(id
) < 7 || val
== 0 || val
== 0xffff)
855 static inline int ata_id_rotation_rate(const u16
*id
)
859 if (ata_id_major_version(id
) < 7 || val
== 0 || val
== 0xffff)
862 if (val
> 1 && val
< 0x401)
868 static inline bool ata_id_has_trim(const u16
*id
)
870 if (ata_id_major_version(id
) >= 7 &&
871 (id
[ATA_ID_DATA_SET_MGMT
] & 1))
876 static inline bool ata_id_has_zero_after_trim(const u16
*id
)
878 /* DSM supported, deterministic read, and read zero after trim set */
879 if (ata_id_has_trim(id
) &&
880 (id
[ATA_ID_ADDITIONAL_SUPP
] & 0x4020) == 0x4020)
886 static inline bool ata_id_current_chs_valid(const u16
*id
)
888 /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command
889 has not been issued to the device then the values of
890 id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */
891 return (id
[ATA_ID_FIELD_VALID
] & 1) && /* Current translation valid */
892 id
[ATA_ID_CUR_CYLS
] && /* cylinders in current translation */
893 id
[ATA_ID_CUR_HEADS
] && /* heads in current translation */
894 id
[ATA_ID_CUR_HEADS
] <= 16 &&
895 id
[ATA_ID_CUR_SECTORS
]; /* sectors in current translation */
898 static inline bool ata_id_is_cfa(const u16
*id
)
900 if ((id
[ATA_ID_CONFIG
] == 0x848A) || /* Traditional CF */
901 (id
[ATA_ID_CONFIG
] == 0x844A)) /* Delkin Devices CF */
904 * CF specs don't require specific value in the word 0 anymore and yet
905 * they forbid to report the ATA version in the word 80 and require the
906 * CFA feature set support to be indicated in the word 83 in this case.
907 * Unfortunately, some cards only follow either of this requirements,
908 * and while those that don't indicate CFA feature support need some
909 * sort of quirk list, it seems impractical for the ones that do...
911 return (id
[ATA_ID_COMMAND_SET_2
] & 0xC004) == 0x4004;
914 static inline bool ata_id_is_ssd(const u16
*id
)
916 return id
[ATA_ID_ROT_SPEED
] == 0x01;
919 static inline bool ata_id_pio_need_iordy(const u16
*id
, const u8 pio
)
921 /* CF spec. r4.1 Table 22 says no IORDY on PIO5 and PIO6. */
922 if (pio
> 4 && ata_id_is_cfa(id
))
924 /* For PIO3 and higher it is mandatory. */
927 /* Turn it on when possible. */
928 return ata_id_has_iordy(id
);
931 static inline bool ata_drive_40wire(const u16
*dev_id
)
933 if (ata_id_is_sata(dev_id
))
934 return false; /* SATA */
935 if ((dev_id
[ATA_ID_HW_CONFIG
] & 0xE000) == 0x6000)
936 return false; /* 80 wire */
940 static inline bool ata_drive_40wire_relaxed(const u16
*dev_id
)
942 if ((dev_id
[ATA_ID_HW_CONFIG
] & 0x2000) == 0x2000)
943 return false; /* 80 wire */
947 static inline int atapi_cdb_len(const u16
*dev_id
)
949 u16 tmp
= dev_id
[ATA_ID_CONFIG
] & 0x3;
957 static inline int atapi_command_packet_set(const u16
*dev_id
)
959 return (dev_id
[ATA_ID_CONFIG
] >> 8) & 0x1f;
962 static inline bool atapi_id_dmadir(const u16
*dev_id
)
964 return ata_id_major_version(dev_id
) >= 7 && (dev_id
[62] & 0x8000);
968 * ata_id_is_lba_capacity_ok() performs a sanity check on
969 * the claimed LBA capacity value for the device.
971 * Returns 1 if LBA capacity looks sensible, 0 otherwise.
973 * It is called only once for each device.
975 static inline bool ata_id_is_lba_capacity_ok(u16
*id
)
977 unsigned long lba_sects
, chs_sects
, head
, tail
;
979 /* No non-LBA info .. so valid! */
980 if (id
[ATA_ID_CYLS
] == 0)
983 lba_sects
= ata_id_u32(id
, ATA_ID_LBA_CAPACITY
);
986 * The ATA spec tells large drives to return
987 * C/H/S = 16383/16/63 independent of their size.
988 * Some drives can be jumpered to use 15 heads instead of 16.
989 * Some drives can be jumpered to use 4092 cyls instead of 16383.
991 if ((id
[ATA_ID_CYLS
] == 16383 ||
992 (id
[ATA_ID_CYLS
] == 4092 && id
[ATA_ID_CUR_CYLS
] == 16383)) &&
993 id
[ATA_ID_SECTORS
] == 63 &&
994 (id
[ATA_ID_HEADS
] == 15 || id
[ATA_ID_HEADS
] == 16) &&
995 (lba_sects
>= 16383 * 63 * id
[ATA_ID_HEADS
]))
998 chs_sects
= id
[ATA_ID_CYLS
] * id
[ATA_ID_HEADS
] * id
[ATA_ID_SECTORS
];
1000 /* perform a rough sanity check on lba_sects: within 10% is OK */
1001 if (lba_sects
- chs_sects
< chs_sects
/10)
1004 /* some drives have the word order reversed */
1005 head
= (lba_sects
>> 16) & 0xffff;
1006 tail
= lba_sects
& 0xffff;
1007 lba_sects
= head
| (tail
<< 16);
1009 if (lba_sects
- chs_sects
< chs_sects
/10) {
1010 *(__le32
*)&id
[ATA_ID_LBA_CAPACITY
] = __cpu_to_le32(lba_sects
);
1011 return true; /* LBA capacity is (now) good */
1014 return false; /* LBA capacity value may be bad */
1017 static inline void ata_id_to_hd_driveid(u16
*id
)
1020 /* accessed in struct hd_driveid as 8-bit values */
1021 id
[ATA_ID_MAX_MULTSECT
] = __cpu_to_le16(id
[ATA_ID_MAX_MULTSECT
]);
1022 id
[ATA_ID_CAPABILITY
] = __cpu_to_le16(id
[ATA_ID_CAPABILITY
]);
1023 id
[ATA_ID_OLD_PIO_MODES
] = __cpu_to_le16(id
[ATA_ID_OLD_PIO_MODES
]);
1024 id
[ATA_ID_OLD_DMA_MODES
] = __cpu_to_le16(id
[ATA_ID_OLD_DMA_MODES
]);
1025 id
[ATA_ID_MULTSECT
] = __cpu_to_le16(id
[ATA_ID_MULTSECT
]);
1027 /* as 32-bit values */
1028 *(u32
*)&id
[ATA_ID_LBA_CAPACITY
] = ata_id_u32(id
, ATA_ID_LBA_CAPACITY
);
1029 *(u32
*)&id
[ATA_ID_SPG
] = ata_id_u32(id
, ATA_ID_SPG
);
1031 /* as 64-bit value */
1032 *(u64
*)&id
[ATA_ID_LBA_CAPACITY_2
] =
1033 ata_id_u64(id
, ATA_ID_LBA_CAPACITY_2
);
1038 * Write LBA Range Entries to the buffer that will cover the extent from
1039 * sector to sector + count. This is used for TRIM and for ADD LBA(S)
1040 * TO NV CACHE PINNED SET.
1042 static inline unsigned ata_set_lba_range_entries(void *_buffer
,
1043 unsigned buf_size
, u64 sector
, unsigned long count
)
1045 __le64
*buffer
= _buffer
;
1046 unsigned i
= 0, used_bytes
;
1048 while (i
< buf_size
/ 8 ) { /* 6-byte LBA + 2-byte range per entry */
1049 u64 entry
= sector
|
1050 ((u64
)(count
> 0xffff ? 0xffff : count
) << 48);
1051 buffer
[i
++] = __cpu_to_le64(entry
);
1052 if (count
<= 0xffff)
1058 used_bytes
= ALIGN(i
* 8, 512);
1059 memset(buffer
+ i
, 0, used_bytes
- i
* 8);
1063 static inline int is_multi_taskfile(struct ata_taskfile
*tf
)
1065 return (tf
->command
== ATA_CMD_READ_MULTI
) ||
1066 (tf
->command
== ATA_CMD_WRITE_MULTI
) ||
1067 (tf
->command
== ATA_CMD_READ_MULTI_EXT
) ||
1068 (tf
->command
== ATA_CMD_WRITE_MULTI_EXT
) ||
1069 (tf
->command
== ATA_CMD_WRITE_MULTI_FUA_EXT
);
1072 static inline bool ata_ok(u8 status
)
1074 return ((status
& (ATA_BUSY
| ATA_DRDY
| ATA_DF
| ATA_DRQ
| ATA_ERR
))
1078 static inline bool lba_28_ok(u64 block
, u32 n_block
)
1080 /* check the ending block number: must be LESS THAN 0x0fffffff */
1081 return ((block
+ n_block
) < ((1 << 28) - 1)) && (n_block
<= 256);
1084 static inline bool lba_48_ok(u64 block
, u32 n_block
)
1086 /* check the ending block number */
1087 return ((block
+ n_block
- 1) < ((u64
)1 << 48)) && (n_block
<= 65536);
1090 #define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff)
1091 #define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16)
1092 #define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff)
1093 #define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf)
1095 #endif /* __LINUX_ATA_H__ */