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_1024
= 1024,
49 ATA_MAX_SECTORS_LBA48
= 65535,/* TODO: 65536? */
50 ATA_MAX_SECTORS_TAPE
= 65535,
61 ATA_ID_MAX_MULTSECT
= 47,
63 ATA_ID_CAPABILITY
= 49,
64 ATA_ID_OLD_PIO_MODES
= 51,
65 ATA_ID_OLD_DMA_MODES
= 52,
66 ATA_ID_FIELD_VALID
= 53,
68 ATA_ID_CUR_HEADS
= 55,
69 ATA_ID_CUR_SECTORS
= 56,
71 ATA_ID_LBA_CAPACITY
= 60,
72 ATA_ID_SWDMA_MODES
= 62,
73 ATA_ID_MWDMA_MODES
= 63,
74 ATA_ID_PIO_MODES
= 64,
75 ATA_ID_EIDE_DMA_MIN
= 65,
76 ATA_ID_EIDE_DMA_TIME
= 66,
78 ATA_ID_EIDE_PIO_IORDY
= 68,
79 ATA_ID_ADDITIONAL_SUPP
= 69,
80 ATA_ID_QUEUE_DEPTH
= 75,
81 ATA_ID_SATA_CAPABILITY
= 76,
82 ATA_ID_SATA_CAPABILITY_2
= 77,
83 ATA_ID_FEATURE_SUPP
= 78,
84 ATA_ID_MAJOR_VER
= 80,
85 ATA_ID_COMMAND_SET_1
= 82,
86 ATA_ID_COMMAND_SET_2
= 83,
88 ATA_ID_CFS_ENABLE_1
= 85,
89 ATA_ID_CFS_ENABLE_2
= 86,
90 ATA_ID_CSF_DEFAULT
= 87,
91 ATA_ID_UDMA_MODES
= 88,
92 ATA_ID_HW_CONFIG
= 93,
94 ATA_ID_LBA_CAPACITY_2
= 100,
95 ATA_ID_SECTOR_SIZE
= 106,
97 ATA_ID_LOGICAL_SECTOR_SIZE
= 117, /* and 118 */
98 ATA_ID_COMMAND_SET_3
= 119,
99 ATA_ID_COMMAND_SET_4
= 120,
100 ATA_ID_LAST_LUN
= 126,
103 ATA_ID_CFA_POWER
= 160,
104 ATA_ID_CFA_KEY_MGMT
= 162,
105 ATA_ID_CFA_MODES
= 163,
106 ATA_ID_DATA_SET_MGMT
= 169,
107 ATA_ID_ROT_SPEED
= 217,
108 ATA_ID_PIO4
= (1 << 1),
110 ATA_ID_SERNO_LEN
= 20,
111 ATA_ID_FW_REV_LEN
= 8,
112 ATA_ID_PROD_LEN
= 40,
118 ATA_PIO1
= ATA_PIO0
| (1 << 1),
119 ATA_PIO2
= ATA_PIO1
| (1 << 2),
120 ATA_PIO3
= ATA_PIO2
| (1 << 3),
121 ATA_PIO4
= ATA_PIO3
| (1 << 4),
122 ATA_PIO5
= ATA_PIO4
| (1 << 5),
123 ATA_PIO6
= ATA_PIO5
| (1 << 6),
125 ATA_PIO4_ONLY
= (1 << 4),
127 ATA_SWDMA0
= (1 << 0),
128 ATA_SWDMA1
= ATA_SWDMA0
| (1 << 1),
129 ATA_SWDMA2
= ATA_SWDMA1
| (1 << 2),
131 ATA_SWDMA2_ONLY
= (1 << 2),
133 ATA_MWDMA0
= (1 << 0),
134 ATA_MWDMA1
= ATA_MWDMA0
| (1 << 1),
135 ATA_MWDMA2
= ATA_MWDMA1
| (1 << 2),
136 ATA_MWDMA3
= ATA_MWDMA2
| (1 << 3),
137 ATA_MWDMA4
= ATA_MWDMA3
| (1 << 4),
139 ATA_MWDMA12_ONLY
= (1 << 1) | (1 << 2),
140 ATA_MWDMA2_ONLY
= (1 << 2),
142 ATA_UDMA0
= (1 << 0),
143 ATA_UDMA1
= ATA_UDMA0
| (1 << 1),
144 ATA_UDMA2
= ATA_UDMA1
| (1 << 2),
145 ATA_UDMA3
= ATA_UDMA2
| (1 << 3),
146 ATA_UDMA4
= ATA_UDMA3
| (1 << 4),
147 ATA_UDMA5
= ATA_UDMA4
| (1 << 5),
148 ATA_UDMA6
= ATA_UDMA5
| (1 << 6),
149 ATA_UDMA7
= ATA_UDMA6
| (1 << 7),
150 /* ATA_UDMA7 is just for completeness... doesn't exist (yet?). */
152 ATA_UDMA24_ONLY
= (1 << 2) | (1 << 4),
154 ATA_UDMA_MASK_40C
= ATA_UDMA2
, /* udma0-2 */
158 ATA_PRD_TBL_SZ
= (ATA_MAX_PRD
* ATA_PRD_SZ
),
159 ATA_PRD_EOT
= (1 << 31), /* end-of-table flag */
161 ATA_DMA_TABLE_OFS
= 4,
164 ATA_DMA_WR
= (1 << 3),
165 ATA_DMA_START
= (1 << 0),
166 ATA_DMA_INTR
= (1 << 2),
167 ATA_DMA_ERR
= (1 << 1),
168 ATA_DMA_ACTIVE
= (1 << 0),
170 /* bits in ATA command block registers */
171 ATA_HOB
= (1 << 7), /* LBA48 selector */
172 ATA_NIEN
= (1 << 1), /* disable-irq flag */
173 ATA_LBA
= (1 << 6), /* LBA28 selector */
174 ATA_DEV1
= (1 << 4), /* Select Device 1 (slave) */
175 ATA_DEVICE_OBS
= (1 << 7) | (1 << 5), /* obs bits in dev reg */
176 ATA_DEVCTL_OBS
= (1 << 3), /* obsolete bit in devctl reg */
177 ATA_BUSY
= (1 << 7), /* BSY status bit */
178 ATA_DRDY
= (1 << 6), /* device ready */
179 ATA_DF
= (1 << 5), /* device fault */
180 ATA_DSC
= (1 << 4), /* drive seek complete */
181 ATA_DRQ
= (1 << 3), /* data request i/o */
182 ATA_CORR
= (1 << 2), /* corrected data error */
183 ATA_SENSE
= (1 << 1), /* sense code available */
184 ATA_ERR
= (1 << 0), /* have an error */
185 ATA_SRST
= (1 << 2), /* software reset */
186 ATA_ICRC
= (1 << 7), /* interface CRC error */
187 ATA_BBK
= ATA_ICRC
, /* pre-EIDE: block marked bad */
188 ATA_UNC
= (1 << 6), /* uncorrectable media error */
189 ATA_MC
= (1 << 5), /* media changed */
190 ATA_IDNF
= (1 << 4), /* ID not found */
191 ATA_MCR
= (1 << 3), /* media change requested */
192 ATA_ABORTED
= (1 << 2), /* command aborted */
193 ATA_TRK0NF
= (1 << 1), /* track 0 not found */
194 ATA_AMNF
= (1 << 0), /* address mark not found */
195 ATAPI_LFS
= 0xF0, /* last failed sense */
196 ATAPI_EOM
= ATA_TRK0NF
, /* end of media */
197 ATAPI_ILI
= ATA_AMNF
, /* illegal length indication */
199 ATAPI_COD
= (1 << 0),
201 /* ATA command block registers */
204 ATA_REG_NSECT
= 0x02,
208 ATA_REG_DEVICE
= 0x06,
209 ATA_REG_STATUS
= 0x07,
211 ATA_REG_FEATURE
= ATA_REG_ERR
, /* and their aliases */
212 ATA_REG_CMD
= ATA_REG_STATUS
,
213 ATA_REG_BYTEL
= ATA_REG_LBAM
,
214 ATA_REG_BYTEH
= ATA_REG_LBAH
,
215 ATA_REG_DEVSEL
= ATA_REG_DEVICE
,
216 ATA_REG_IRQ
= ATA_REG_NSECT
,
218 /* ATA device commands */
219 ATA_CMD_DEV_RESET
= 0x08, /* ATAPI device reset */
220 ATA_CMD_CHK_POWER
= 0xE5, /* check power mode */
221 ATA_CMD_STANDBY
= 0xE2, /* place in standby power mode */
222 ATA_CMD_IDLE
= 0xE3, /* place in idle power mode */
223 ATA_CMD_EDD
= 0x90, /* execute device diagnostic */
224 ATA_CMD_DOWNLOAD_MICRO
= 0x92,
225 ATA_CMD_DOWNLOAD_MICRO_DMA
= 0x93,
227 ATA_CMD_FLUSH
= 0xE7,
228 ATA_CMD_FLUSH_EXT
= 0xEA,
229 ATA_CMD_ID_ATA
= 0xEC,
230 ATA_CMD_ID_ATAPI
= 0xA1,
231 ATA_CMD_SERVICE
= 0xA2,
233 ATA_CMD_READ_EXT
= 0x25,
234 ATA_CMD_READ_QUEUED
= 0x26,
235 ATA_CMD_READ_STREAM_EXT
= 0x2B,
236 ATA_CMD_READ_STREAM_DMA_EXT
= 0x2A,
237 ATA_CMD_WRITE
= 0xCA,
238 ATA_CMD_WRITE_EXT
= 0x35,
239 ATA_CMD_WRITE_QUEUED
= 0x36,
240 ATA_CMD_WRITE_STREAM_EXT
= 0x3B,
241 ATA_CMD_WRITE_STREAM_DMA_EXT
= 0x3A,
242 ATA_CMD_WRITE_FUA_EXT
= 0x3D,
243 ATA_CMD_WRITE_QUEUED_FUA_EXT
= 0x3E,
244 ATA_CMD_FPDMA_READ
= 0x60,
245 ATA_CMD_FPDMA_WRITE
= 0x61,
246 ATA_CMD_NCQ_NON_DATA
= 0x63,
247 ATA_CMD_FPDMA_SEND
= 0x64,
248 ATA_CMD_FPDMA_RECV
= 0x65,
249 ATA_CMD_PIO_READ
= 0x20,
250 ATA_CMD_PIO_READ_EXT
= 0x24,
251 ATA_CMD_PIO_WRITE
= 0x30,
252 ATA_CMD_PIO_WRITE_EXT
= 0x34,
253 ATA_CMD_READ_MULTI
= 0xC4,
254 ATA_CMD_READ_MULTI_EXT
= 0x29,
255 ATA_CMD_WRITE_MULTI
= 0xC5,
256 ATA_CMD_WRITE_MULTI_EXT
= 0x39,
257 ATA_CMD_WRITE_MULTI_FUA_EXT
= 0xCE,
258 ATA_CMD_SET_FEATURES
= 0xEF,
259 ATA_CMD_SET_MULTI
= 0xC6,
260 ATA_CMD_PACKET
= 0xA0,
261 ATA_CMD_VERIFY
= 0x40,
262 ATA_CMD_VERIFY_EXT
= 0x42,
263 ATA_CMD_WRITE_UNCORR_EXT
= 0x45,
264 ATA_CMD_STANDBYNOW1
= 0xE0,
265 ATA_CMD_IDLEIMMEDIATE
= 0xE1,
266 ATA_CMD_SLEEP
= 0xE6,
267 ATA_CMD_INIT_DEV_PARAMS
= 0x91,
268 ATA_CMD_READ_NATIVE_MAX
= 0xF8,
269 ATA_CMD_READ_NATIVE_MAX_EXT
= 0x27,
270 ATA_CMD_SET_MAX
= 0xF9,
271 ATA_CMD_SET_MAX_EXT
= 0x37,
272 ATA_CMD_READ_LOG_EXT
= 0x2F,
273 ATA_CMD_WRITE_LOG_EXT
= 0x3F,
274 ATA_CMD_READ_LOG_DMA_EXT
= 0x47,
275 ATA_CMD_WRITE_LOG_DMA_EXT
= 0x57,
276 ATA_CMD_TRUSTED_NONDATA
= 0x5B,
277 ATA_CMD_TRUSTED_RCV
= 0x5C,
278 ATA_CMD_TRUSTED_RCV_DMA
= 0x5D,
279 ATA_CMD_TRUSTED_SND
= 0x5E,
280 ATA_CMD_TRUSTED_SND_DMA
= 0x5F,
281 ATA_CMD_PMP_READ
= 0xE4,
282 ATA_CMD_PMP_READ_DMA
= 0xE9,
283 ATA_CMD_PMP_WRITE
= 0xE8,
284 ATA_CMD_PMP_WRITE_DMA
= 0xEB,
285 ATA_CMD_CONF_OVERLAY
= 0xB1,
286 ATA_CMD_SEC_SET_PASS
= 0xF1,
287 ATA_CMD_SEC_UNLOCK
= 0xF2,
288 ATA_CMD_SEC_ERASE_PREP
= 0xF3,
289 ATA_CMD_SEC_ERASE_UNIT
= 0xF4,
290 ATA_CMD_SEC_FREEZE_LOCK
= 0xF5,
291 ATA_CMD_SEC_DISABLE_PASS
= 0xF6,
292 ATA_CMD_CONFIG_STREAM
= 0x51,
293 ATA_CMD_SMART
= 0xB0,
294 ATA_CMD_MEDIA_LOCK
= 0xDE,
295 ATA_CMD_MEDIA_UNLOCK
= 0xDF,
297 ATA_CMD_CHK_MED_CRD_TYP
= 0xD1,
298 ATA_CMD_CFA_REQ_EXT_ERR
= 0x03,
299 ATA_CMD_CFA_WRITE_NE
= 0x38,
300 ATA_CMD_CFA_TRANS_SECT
= 0x87,
301 ATA_CMD_CFA_ERASE
= 0xC0,
302 ATA_CMD_CFA_WRITE_MULT_NE
= 0xCD,
303 ATA_CMD_REQ_SENSE_DATA
= 0x0B,
304 ATA_CMD_SANITIZE_DEVICE
= 0xB4,
305 ATA_CMD_ZAC_MGMT_IN
= 0x4A,
306 ATA_CMD_ZAC_MGMT_OUT
= 0x9F,
308 /* marked obsolete in the ATA/ATAPI-7 spec */
309 ATA_CMD_RESTORE
= 0x10,
311 /* Subcmds for ATA_CMD_FPDMA_RECV */
312 ATA_SUBCMD_FPDMA_RECV_RD_LOG_DMA_EXT
= 0x01,
313 ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN
= 0x02,
315 /* Subcmds for ATA_CMD_FPDMA_SEND */
316 ATA_SUBCMD_FPDMA_SEND_DSM
= 0x00,
317 ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT
= 0x02,
319 /* Subcmds for ATA_CMD_NCQ_NON_DATA */
320 ATA_SUBCMD_NCQ_NON_DATA_ABORT_QUEUE
= 0x00,
321 ATA_SUBCMD_NCQ_NON_DATA_SET_FEATURES
= 0x05,
322 ATA_SUBCMD_NCQ_NON_DATA_ZERO_EXT
= 0x06,
323 ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT
= 0x07,
325 /* Subcmds for ATA_CMD_ZAC_MGMT_IN */
326 ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES
= 0x00,
328 /* Subcmds for ATA_CMD_ZAC_MGMT_OUT */
329 ATA_SUBCMD_ZAC_MGMT_OUT_CLOSE_ZONE
= 0x01,
330 ATA_SUBCMD_ZAC_MGMT_OUT_FINISH_ZONE
= 0x02,
331 ATA_SUBCMD_ZAC_MGMT_OUT_OPEN_ZONE
= 0x03,
332 ATA_SUBCMD_ZAC_MGMT_OUT_RESET_WRITE_POINTER
= 0x04,
334 /* READ_LOG_EXT pages */
335 ATA_LOG_DIRECTORY
= 0x0,
336 ATA_LOG_SATA_NCQ
= 0x10,
337 ATA_LOG_NCQ_NON_DATA
= 0x12,
338 ATA_LOG_NCQ_SEND_RECV
= 0x13,
339 ATA_LOG_SATA_ID_DEV_DATA
= 0x30,
340 ATA_LOG_SATA_SETTINGS
= 0x08,
341 ATA_LOG_ZONED_INFORMATION
= 0x09,
342 ATA_LOG_DEVSLP_OFFSET
= 0x30,
343 ATA_LOG_DEVSLP_SIZE
= 0x08,
344 ATA_LOG_DEVSLP_MDAT
= 0x00,
345 ATA_LOG_DEVSLP_MDAT_MASK
= 0x1F,
346 ATA_LOG_DEVSLP_DETO
= 0x01,
347 ATA_LOG_DEVSLP_VALID
= 0x07,
348 ATA_LOG_DEVSLP_VALID_MASK
= 0x80,
350 /* NCQ send and receive log */
351 ATA_LOG_NCQ_SEND_RECV_SUBCMDS_OFFSET
= 0x00,
352 ATA_LOG_NCQ_SEND_RECV_SUBCMDS_DSM
= (1 << 0),
353 ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET
= 0x04,
354 ATA_LOG_NCQ_SEND_RECV_DSM_TRIM
= (1 << 0),
355 ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET
= 0x08,
356 ATA_LOG_NCQ_SEND_RECV_RD_LOG_SUPPORTED
= (1 << 0),
357 ATA_LOG_NCQ_SEND_RECV_WR_LOG_OFFSET
= 0x0C,
358 ATA_LOG_NCQ_SEND_RECV_WR_LOG_SUPPORTED
= (1 << 0),
359 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OFFSET
= 0x10,
360 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OUT_SUPPORTED
= (1 << 0),
361 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_IN_SUPPORTED
= (1 << 1),
362 ATA_LOG_NCQ_SEND_RECV_SIZE
= 0x14,
364 /* NCQ Non-Data log */
365 ATA_LOG_NCQ_NON_DATA_SUBCMDS_OFFSET
= 0x00,
366 ATA_LOG_NCQ_NON_DATA_ABORT_OFFSET
= 0x00,
367 ATA_LOG_NCQ_NON_DATA_ABORT_NCQ
= (1 << 0),
368 ATA_LOG_NCQ_NON_DATA_ABORT_ALL
= (1 << 1),
369 ATA_LOG_NCQ_NON_DATA_ABORT_STREAMING
= (1 << 2),
370 ATA_LOG_NCQ_NON_DATA_ABORT_NON_STREAMING
= (1 << 3),
371 ATA_LOG_NCQ_NON_DATA_ABORT_SELECTED
= (1 << 4),
372 ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OFFSET
= 0x1C,
373 ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OUT
= (1 << 0),
374 ATA_LOG_NCQ_NON_DATA_SIZE
= 0x40,
376 /* READ/WRITE LONG (obsolete) */
377 ATA_CMD_READ_LONG
= 0x22,
378 ATA_CMD_READ_LONG_ONCE
= 0x23,
379 ATA_CMD_WRITE_LONG
= 0x32,
380 ATA_CMD_WRITE_LONG_ONCE
= 0x33,
382 /* SETFEATURES stuff */
383 SETFEATURES_XFER
= 0x03,
392 XFER_MW_DMA_4
= 0x24, /* CFA only */
393 XFER_MW_DMA_3
= 0x23, /* CFA only */
394 XFER_MW_DMA_2
= 0x22,
395 XFER_MW_DMA_1
= 0x21,
396 XFER_MW_DMA_0
= 0x20,
397 XFER_SW_DMA_2
= 0x12,
398 XFER_SW_DMA_1
= 0x11,
399 XFER_SW_DMA_0
= 0x10,
400 XFER_PIO_6
= 0x0E, /* CFA only */
401 XFER_PIO_5
= 0x0D, /* CFA only */
407 XFER_PIO_SLOW
= 0x00,
409 SETFEATURES_WC_ON
= 0x02, /* Enable write cache */
410 SETFEATURES_WC_OFF
= 0x82, /* Disable write cache */
412 /* Enable/Disable Automatic Acoustic Management */
413 SETFEATURES_AAM_ON
= 0x42,
414 SETFEATURES_AAM_OFF
= 0xC2,
416 SETFEATURES_SPINUP
= 0x07, /* Spin-up drive */
417 SETFEATURES_SPINUP_TIMEOUT
= 30000, /* 30s timeout for drive spin-up from PUIS */
419 SETFEATURES_SATA_ENABLE
= 0x10, /* Enable use of SATA feature */
420 SETFEATURES_SATA_DISABLE
= 0x90, /* Disable use of SATA feature */
422 /* SETFEATURE Sector counts for SATA features */
423 SATA_FPDMA_OFFSET
= 0x01, /* FPDMA non-zero buffer offsets */
424 SATA_FPDMA_AA
= 0x02, /* FPDMA Setup FIS Auto-Activate */
425 SATA_DIPM
= 0x03, /* Device Initiated Power Management */
426 SATA_FPDMA_IN_ORDER
= 0x04, /* FPDMA in-order data delivery */
427 SATA_AN
= 0x05, /* Asynchronous Notification */
428 SATA_SSP
= 0x06, /* Software Settings Preservation */
429 SATA_DEVSLP
= 0x09, /* Device Sleep */
431 SETFEATURE_SENSE_DATA
= 0xC3, /* Sense Data Reporting feature */
433 /* feature values for SET_MAX */
434 ATA_SET_MAX_ADDR
= 0x00,
435 ATA_SET_MAX_PASSWD
= 0x01,
436 ATA_SET_MAX_LOCK
= 0x02,
437 ATA_SET_MAX_UNLOCK
= 0x03,
438 ATA_SET_MAX_FREEZE_LOCK
= 0x04,
440 /* feature values for DEVICE CONFIGURATION OVERLAY */
441 ATA_DCO_RESTORE
= 0xC0,
442 ATA_DCO_FREEZE_LOCK
= 0xC1,
443 ATA_DCO_IDENTIFY
= 0xC2,
446 /* feature values for SMART */
447 ATA_SMART_ENABLE
= 0xD8,
448 ATA_SMART_READ_VALUES
= 0xD0,
449 ATA_SMART_READ_THRESHOLDS
= 0xD1,
451 /* feature values for Data Set Management */
454 /* password used in LBA Mid / LBA High for executing SMART commands */
455 ATA_SMART_LBAM_PASS
= 0x4F,
456 ATA_SMART_LBAH_PASS
= 0xC2,
459 ATAPI_PKT_DMA
= (1 << 0),
460 ATAPI_DMADIR
= (1 << 2), /* ATAPI data dir:
461 0=to device, 1=to host */
465 SATA_PMP_MAX_PORTS
= 15,
466 SATA_PMP_CTRL_PORT
= 15,
468 SATA_PMP_GSCR_DWORDS
= 128,
469 SATA_PMP_GSCR_PROD_ID
= 0,
470 SATA_PMP_GSCR_REV
= 1,
471 SATA_PMP_GSCR_PORT_INFO
= 2,
472 SATA_PMP_GSCR_ERROR
= 32,
473 SATA_PMP_GSCR_ERROR_EN
= 33,
474 SATA_PMP_GSCR_FEAT
= 64,
475 SATA_PMP_GSCR_FEAT_EN
= 96,
477 SATA_PMP_PSCR_STATUS
= 0,
478 SATA_PMP_PSCR_ERROR
= 1,
479 SATA_PMP_PSCR_CONTROL
= 2,
481 SATA_PMP_FEAT_BIST
= (1 << 0),
482 SATA_PMP_FEAT_PMREQ
= (1 << 1),
483 SATA_PMP_FEAT_DYNSSC
= (1 << 2),
484 SATA_PMP_FEAT_NOTIFY
= (1 << 3),
490 ATA_CBL_PATA40_SHORT
= 3, /* 40 wire cable to high UDMA spec */
491 ATA_CBL_PATA_UNK
= 4, /* don't know, maybe 80c? */
492 ATA_CBL_PATA_IGN
= 5, /* don't know, ignore cable handling */
495 /* SATA Status and Control Registers */
500 SCR_NOTIFICATION
= 4,
503 SERR_DATA_RECOVERED
= (1 << 0), /* recovered data error */
504 SERR_COMM_RECOVERED
= (1 << 1), /* recovered comm failure */
505 SERR_DATA
= (1 << 8), /* unrecovered data error */
506 SERR_PERSISTENT
= (1 << 9), /* persistent data/comm error */
507 SERR_PROTOCOL
= (1 << 10), /* protocol violation */
508 SERR_INTERNAL
= (1 << 11), /* host internal error */
509 SERR_PHYRDY_CHG
= (1 << 16), /* PHY RDY changed */
510 SERR_PHY_INT_ERR
= (1 << 17), /* PHY internal error */
511 SERR_COMM_WAKE
= (1 << 18), /* Comm wake */
512 SERR_10B_8B_ERR
= (1 << 19), /* 10b to 8b decode error */
513 SERR_DISPARITY
= (1 << 20), /* Disparity */
514 SERR_CRC
= (1 << 21), /* CRC error */
515 SERR_HANDSHAKE
= (1 << 22), /* Handshake error */
516 SERR_LINK_SEQ_ERR
= (1 << 23), /* Link sequence error */
517 SERR_TRANS_ST_ERROR
= (1 << 24), /* Transport state trans. error */
518 SERR_UNRECOG_FIS
= (1 << 25), /* Unrecognized FIS */
519 SERR_DEV_XCHG
= (1 << 26), /* device exchanged */
522 enum ata_tf_protocols
{
523 /* ATA taskfile protocols */
524 ATA_PROT_UNKNOWN
, /* unknown/invalid */
525 ATA_PROT_NODATA
, /* no data */
526 ATA_PROT_PIO
, /* PIO data xfer */
527 ATA_PROT_DMA
, /* DMA */
528 ATA_PROT_NCQ
, /* NCQ */
529 ATAPI_PROT_NODATA
, /* packet command, no data */
530 ATAPI_PROT_PIO
, /* packet command, PIO data xfer*/
531 ATAPI_PROT_DMA
, /* packet command with special DMA sauce */
535 ATA_IOC_GET_IO32
= 0x309, /* HDIO_GET_32BIT */
536 ATA_IOC_SET_IO32
= 0x324, /* HDIO_SET_32BIT */
539 /* core structures */
541 struct ata_bmdma_prd
{
549 #define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0)
550 #define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9))
551 #define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (1 << 8))
552 #define ata_id_has_ncq(id) ((id)[ATA_ID_SATA_CAPABILITY] & (1 << 8))
553 #define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1)
554 #define ata_id_removable(id) ((id)[ATA_ID_CONFIG] & (1 << 7))
555 #define ata_id_has_atapi_AN(id) \
556 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
557 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
558 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 5)))
559 #define ata_id_has_fpdma_aa(id) \
560 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
561 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
562 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 2)))
563 #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10))
564 #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11))
565 #define ata_id_u32(id,n) \
566 (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)]))
567 #define ata_id_u64(id,n) \
568 ( ((u64) (id)[(n) + 3] << 48) | \
569 ((u64) (id)[(n) + 2] << 32) | \
570 ((u64) (id)[(n) + 1] << 16) | \
571 ((u64) (id)[(n) + 0]) )
573 #define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20)
574 #define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4))
575 #define ata_id_has_devslp(id) ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8))
576 #define ata_id_has_ncq_autosense(id) \
577 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 7))
579 static inline bool ata_id_has_hipm(const u16
*id
)
581 u16 val
= id
[ATA_ID_SATA_CAPABILITY
];
583 if (val
== 0 || val
== 0xffff)
586 return val
& (1 << 9);
589 static inline bool ata_id_has_dipm(const u16
*id
)
591 u16 val
= id
[ATA_ID_FEATURE_SUPP
];
593 if (val
== 0 || val
== 0xffff)
596 return val
& (1 << 3);
600 static inline bool ata_id_has_fua(const u16
*id
)
602 if ((id
[ATA_ID_CFSSE
] & 0xC000) != 0x4000)
604 return id
[ATA_ID_CFSSE
] & (1 << 6);
607 static inline bool ata_id_has_flush(const u16
*id
)
609 if ((id
[ATA_ID_COMMAND_SET_2
] & 0xC000) != 0x4000)
611 return id
[ATA_ID_COMMAND_SET_2
] & (1 << 12);
614 static inline bool ata_id_flush_enabled(const u16
*id
)
616 if (ata_id_has_flush(id
) == 0)
618 if ((id
[ATA_ID_CSF_DEFAULT
] & 0xC000) != 0x4000)
620 return id
[ATA_ID_CFS_ENABLE_2
] & (1 << 12);
623 static inline bool ata_id_has_flush_ext(const u16
*id
)
625 if ((id
[ATA_ID_COMMAND_SET_2
] & 0xC000) != 0x4000)
627 return id
[ATA_ID_COMMAND_SET_2
] & (1 << 13);
630 static inline bool ata_id_flush_ext_enabled(const u16
*id
)
632 if (ata_id_has_flush_ext(id
) == 0)
634 if ((id
[ATA_ID_CSF_DEFAULT
] & 0xC000) != 0x4000)
637 * some Maxtor disks have bit 13 defined incorrectly
638 * so check bit 10 too
640 return (id
[ATA_ID_CFS_ENABLE_2
] & 0x2400) == 0x2400;
643 static inline u32
ata_id_logical_sector_size(const u16
*id
)
645 /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128.
646 * IDENTIFY DEVICE data, word 117-118.
647 * 0xd000 ignores bit 13 (logical:physical > 1)
649 if ((id
[ATA_ID_SECTOR_SIZE
] & 0xd000) == 0x5000)
650 return (((id
[ATA_ID_LOGICAL_SECTOR_SIZE
+1] << 16)
651 + id
[ATA_ID_LOGICAL_SECTOR_SIZE
]) * sizeof(u16
)) ;
652 return ATA_SECT_SIZE
;
655 static inline u8
ata_id_log2_per_physical_sector(const u16
*id
)
657 /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128.
658 * IDENTIFY DEVICE data, word 106.
659 * 0xe000 ignores bit 12 (logical sector > 512 bytes)
661 if ((id
[ATA_ID_SECTOR_SIZE
] & 0xe000) == 0x6000)
662 return (id
[ATA_ID_SECTOR_SIZE
] & 0xf);
666 /* Offset of logical sectors relative to physical sectors.
668 * If device has more than one logical sector per physical sector
669 * (aka 512 byte emulation), vendors might offset the "sector 0" address
670 * so sector 63 is "naturally aligned" - e.g. FAT partition table.
671 * This avoids Read/Mod/Write penalties when using FAT partition table
672 * and updating "well aligned" (FS perspective) physical sectors on every
675 static inline u16
ata_id_logical_sector_offset(const u16
*id
,
678 u16 word_209
= id
[209];
680 if ((log2_per_phys
> 1) && (word_209
& 0xc000) == 0x4000) {
681 u16 first
= word_209
& 0x3fff;
683 return (1 << log2_per_phys
) - first
;
688 static inline bool ata_id_has_lba48(const u16
*id
)
690 if ((id
[ATA_ID_COMMAND_SET_2
] & 0xC000) != 0x4000)
692 if (!ata_id_u64(id
, ATA_ID_LBA_CAPACITY_2
))
694 return id
[ATA_ID_COMMAND_SET_2
] & (1 << 10);
697 static inline bool ata_id_lba48_enabled(const u16
*id
)
699 if (ata_id_has_lba48(id
) == 0)
701 if ((id
[ATA_ID_CSF_DEFAULT
] & 0xC000) != 0x4000)
703 return id
[ATA_ID_CFS_ENABLE_2
] & (1 << 10);
706 static inline bool ata_id_hpa_enabled(const u16
*id
)
708 /* Yes children, word 83 valid bits cover word 82 data */
709 if ((id
[ATA_ID_COMMAND_SET_2
] & 0xC000) != 0x4000)
711 /* And 87 covers 85-87 */
712 if ((id
[ATA_ID_CSF_DEFAULT
] & 0xC000) != 0x4000)
714 /* Check command sets enabled as well as supported */
715 if ((id
[ATA_ID_CFS_ENABLE_1
] & (1 << 10)) == 0)
717 return id
[ATA_ID_COMMAND_SET_1
] & (1 << 10);
720 static inline bool ata_id_has_wcache(const u16
*id
)
722 /* Yes children, word 83 valid bits cover word 82 data */
723 if ((id
[ATA_ID_COMMAND_SET_2
] & 0xC000) != 0x4000)
725 return id
[ATA_ID_COMMAND_SET_1
] & (1 << 5);
728 static inline bool ata_id_has_pm(const u16
*id
)
730 if ((id
[ATA_ID_COMMAND_SET_2
] & 0xC000) != 0x4000)
732 return id
[ATA_ID_COMMAND_SET_1
] & (1 << 3);
735 static inline bool ata_id_rahead_enabled(const u16
*id
)
737 if ((id
[ATA_ID_CSF_DEFAULT
] & 0xC000) != 0x4000)
739 return id
[ATA_ID_CFS_ENABLE_1
] & (1 << 6);
742 static inline bool ata_id_wcache_enabled(const u16
*id
)
744 if ((id
[ATA_ID_CSF_DEFAULT
] & 0xC000) != 0x4000)
746 return id
[ATA_ID_CFS_ENABLE_1
] & (1 << 5);
749 static inline bool ata_id_has_read_log_dma_ext(const u16
*id
)
751 /* Word 86 must have bit 15 set */
752 if (!(id
[ATA_ID_CFS_ENABLE_2
] & (1 << 15)))
755 /* READ LOG DMA EXT support can be signaled either from word 119
756 * or from word 120. The format is the same for both words: Bit
757 * 15 must be cleared, bit 14 set and bit 3 set.
759 if ((id
[ATA_ID_COMMAND_SET_3
] & 0xC008) == 0x4008 ||
760 (id
[ATA_ID_COMMAND_SET_4
] & 0xC008) == 0x4008)
766 static inline bool ata_id_has_sense_reporting(const u16
*id
)
768 if (!(id
[ATA_ID_CFS_ENABLE_2
] & (1 << 15)))
770 return id
[ATA_ID_COMMAND_SET_3
] & (1 << 6);
773 static inline bool ata_id_sense_reporting_enabled(const u16
*id
)
775 if (!(id
[ATA_ID_CFS_ENABLE_2
] & (1 << 15)))
777 return id
[ATA_ID_COMMAND_SET_4
] & (1 << 6);
781 * ata_id_major_version - get ATA level of drive
785 * ATA-1 considers identify optional
786 * ATA-2 introduces mandatory identify
787 * ATA-3 introduces word 80 and accurate reporting
789 * The practical impact of this is that ata_id_major_version cannot
790 * reliably report on drives below ATA3.
793 static inline unsigned int ata_id_major_version(const u16
*id
)
797 if (id
[ATA_ID_MAJOR_VER
] == 0xFFFF)
800 for (mver
= 14; mver
>= 1; mver
--)
801 if (id
[ATA_ID_MAJOR_VER
] & (1 << mver
))
806 static inline bool ata_id_is_sata(const u16
*id
)
809 * See if word 93 is 0 AND drive is at least ATA-5 compatible
810 * verifying that word 80 by casting it to a signed type --
811 * this trick allows us to filter out the reserved values of
812 * 0x0000 and 0xffff along with the earlier ATA revisions...
814 if (id
[ATA_ID_HW_CONFIG
] == 0 && (short)id
[ATA_ID_MAJOR_VER
] >= 0x0020)
819 static inline bool ata_id_has_tpm(const u16
*id
)
821 /* The TPM bits are only valid on ATA8 */
822 if (ata_id_major_version(id
) < 8)
824 if ((id
[48] & 0xC000) != 0x4000)
826 return id
[48] & (1 << 0);
829 static inline bool ata_id_has_dword_io(const u16
*id
)
831 /* ATA 8 reuses this flag for "trusted" computing */
832 if (ata_id_major_version(id
) > 7)
834 return id
[ATA_ID_DWORD_IO
] & (1 << 0);
837 static inline bool ata_id_has_unload(const u16
*id
)
839 if (ata_id_major_version(id
) >= 7 &&
840 (id
[ATA_ID_CFSSE
] & 0xC000) == 0x4000 &&
841 id
[ATA_ID_CFSSE
] & (1 << 13))
846 static inline bool ata_id_has_wwn(const u16
*id
)
848 return (id
[ATA_ID_CSF_DEFAULT
] & 0xC100) == 0x4100;
851 static inline int ata_id_form_factor(const u16
*id
)
855 if (ata_id_major_version(id
) < 7 || val
== 0 || val
== 0xffff)
866 static inline int ata_id_rotation_rate(const u16
*id
)
870 if (ata_id_major_version(id
) < 7 || val
== 0 || val
== 0xffff)
873 if (val
> 1 && val
< 0x401)
879 static inline bool ata_id_has_ncq_send_and_recv(const u16
*id
)
881 return id
[ATA_ID_SATA_CAPABILITY_2
] & BIT(6);
884 static inline bool ata_id_has_ncq_non_data(const u16
*id
)
886 return id
[ATA_ID_SATA_CAPABILITY_2
] & BIT(5);
889 static inline bool ata_id_has_trim(const u16
*id
)
891 if (ata_id_major_version(id
) >= 7 &&
892 (id
[ATA_ID_DATA_SET_MGMT
] & 1))
897 static inline bool ata_id_has_zero_after_trim(const u16
*id
)
899 /* DSM supported, deterministic read, and read zero after trim set */
900 if (ata_id_has_trim(id
) &&
901 (id
[ATA_ID_ADDITIONAL_SUPP
] & 0x4020) == 0x4020)
907 static inline bool ata_id_current_chs_valid(const u16
*id
)
909 /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command
910 has not been issued to the device then the values of
911 id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */
912 return (id
[ATA_ID_FIELD_VALID
] & 1) && /* Current translation valid */
913 id
[ATA_ID_CUR_CYLS
] && /* cylinders in current translation */
914 id
[ATA_ID_CUR_HEADS
] && /* heads in current translation */
915 id
[ATA_ID_CUR_HEADS
] <= 16 &&
916 id
[ATA_ID_CUR_SECTORS
]; /* sectors in current translation */
919 static inline bool ata_id_is_cfa(const u16
*id
)
921 if ((id
[ATA_ID_CONFIG
] == 0x848A) || /* Traditional CF */
922 (id
[ATA_ID_CONFIG
] == 0x844A)) /* Delkin Devices CF */
925 * CF specs don't require specific value in the word 0 anymore and yet
926 * they forbid to report the ATA version in the word 80 and require the
927 * CFA feature set support to be indicated in the word 83 in this case.
928 * Unfortunately, some cards only follow either of this requirements,
929 * and while those that don't indicate CFA feature support need some
930 * sort of quirk list, it seems impractical for the ones that do...
932 return (id
[ATA_ID_COMMAND_SET_2
] & 0xC004) == 0x4004;
935 static inline bool ata_id_is_ssd(const u16
*id
)
937 return id
[ATA_ID_ROT_SPEED
] == 0x01;
940 static inline u8
ata_id_zoned_cap(const u16
*id
)
942 return (id
[ATA_ID_ADDITIONAL_SUPP
] & 0x3);
945 static inline bool ata_id_pio_need_iordy(const u16
*id
, const u8 pio
)
947 /* CF spec. r4.1 Table 22 says no IORDY on PIO5 and PIO6. */
948 if (pio
> 4 && ata_id_is_cfa(id
))
950 /* For PIO3 and higher it is mandatory. */
953 /* Turn it on when possible. */
954 return ata_id_has_iordy(id
);
957 static inline bool ata_drive_40wire(const u16
*dev_id
)
959 if (ata_id_is_sata(dev_id
))
960 return false; /* SATA */
961 if ((dev_id
[ATA_ID_HW_CONFIG
] & 0xE000) == 0x6000)
962 return false; /* 80 wire */
966 static inline bool ata_drive_40wire_relaxed(const u16
*dev_id
)
968 if ((dev_id
[ATA_ID_HW_CONFIG
] & 0x2000) == 0x2000)
969 return false; /* 80 wire */
973 static inline int atapi_cdb_len(const u16
*dev_id
)
975 u16 tmp
= dev_id
[ATA_ID_CONFIG
] & 0x3;
983 static inline int atapi_command_packet_set(const u16
*dev_id
)
985 return (dev_id
[ATA_ID_CONFIG
] >> 8) & 0x1f;
988 static inline bool atapi_id_dmadir(const u16
*dev_id
)
990 return ata_id_major_version(dev_id
) >= 7 && (dev_id
[62] & 0x8000);
994 * ata_id_is_lba_capacity_ok() performs a sanity check on
995 * the claimed LBA capacity value for the device.
997 * Returns 1 if LBA capacity looks sensible, 0 otherwise.
999 * It is called only once for each device.
1001 static inline bool ata_id_is_lba_capacity_ok(u16
*id
)
1003 unsigned long lba_sects
, chs_sects
, head
, tail
;
1005 /* No non-LBA info .. so valid! */
1006 if (id
[ATA_ID_CYLS
] == 0)
1009 lba_sects
= ata_id_u32(id
, ATA_ID_LBA_CAPACITY
);
1012 * The ATA spec tells large drives to return
1013 * C/H/S = 16383/16/63 independent of their size.
1014 * Some drives can be jumpered to use 15 heads instead of 16.
1015 * Some drives can be jumpered to use 4092 cyls instead of 16383.
1017 if ((id
[ATA_ID_CYLS
] == 16383 ||
1018 (id
[ATA_ID_CYLS
] == 4092 && id
[ATA_ID_CUR_CYLS
] == 16383)) &&
1019 id
[ATA_ID_SECTORS
] == 63 &&
1020 (id
[ATA_ID_HEADS
] == 15 || id
[ATA_ID_HEADS
] == 16) &&
1021 (lba_sects
>= 16383 * 63 * id
[ATA_ID_HEADS
]))
1024 chs_sects
= id
[ATA_ID_CYLS
] * id
[ATA_ID_HEADS
] * id
[ATA_ID_SECTORS
];
1026 /* perform a rough sanity check on lba_sects: within 10% is OK */
1027 if (lba_sects
- chs_sects
< chs_sects
/10)
1030 /* some drives have the word order reversed */
1031 head
= (lba_sects
>> 16) & 0xffff;
1032 tail
= lba_sects
& 0xffff;
1033 lba_sects
= head
| (tail
<< 16);
1035 if (lba_sects
- chs_sects
< chs_sects
/10) {
1036 *(__le32
*)&id
[ATA_ID_LBA_CAPACITY
] = __cpu_to_le32(lba_sects
);
1037 return true; /* LBA capacity is (now) good */
1040 return false; /* LBA capacity value may be bad */
1043 static inline void ata_id_to_hd_driveid(u16
*id
)
1046 /* accessed in struct hd_driveid as 8-bit values */
1047 id
[ATA_ID_MAX_MULTSECT
] = __cpu_to_le16(id
[ATA_ID_MAX_MULTSECT
]);
1048 id
[ATA_ID_CAPABILITY
] = __cpu_to_le16(id
[ATA_ID_CAPABILITY
]);
1049 id
[ATA_ID_OLD_PIO_MODES
] = __cpu_to_le16(id
[ATA_ID_OLD_PIO_MODES
]);
1050 id
[ATA_ID_OLD_DMA_MODES
] = __cpu_to_le16(id
[ATA_ID_OLD_DMA_MODES
]);
1051 id
[ATA_ID_MULTSECT
] = __cpu_to_le16(id
[ATA_ID_MULTSECT
]);
1053 /* as 32-bit values */
1054 *(u32
*)&id
[ATA_ID_LBA_CAPACITY
] = ata_id_u32(id
, ATA_ID_LBA_CAPACITY
);
1055 *(u32
*)&id
[ATA_ID_SPG
] = ata_id_u32(id
, ATA_ID_SPG
);
1057 /* as 64-bit value */
1058 *(u64
*)&id
[ATA_ID_LBA_CAPACITY_2
] =
1059 ata_id_u64(id
, ATA_ID_LBA_CAPACITY_2
);
1064 * Write LBA Range Entries to the buffer that will cover the extent from
1065 * sector to sector + count. This is used for TRIM and for ADD LBA(S)
1066 * TO NV CACHE PINNED SET.
1068 static inline unsigned ata_set_lba_range_entries(void *_buffer
,
1069 unsigned buf_size
, u64 sector
, unsigned long count
)
1071 __le64
*buffer
= _buffer
;
1072 unsigned i
= 0, used_bytes
;
1074 while (i
< buf_size
/ 8 ) { /* 6-byte LBA + 2-byte range per entry */
1075 u64 entry
= sector
|
1076 ((u64
)(count
> 0xffff ? 0xffff : count
) << 48);
1077 buffer
[i
++] = __cpu_to_le64(entry
);
1078 if (count
<= 0xffff)
1084 used_bytes
= ALIGN(i
* 8, 512);
1085 memset(buffer
+ i
, 0, used_bytes
- i
* 8);
1089 static inline bool ata_ok(u8 status
)
1091 return ((status
& (ATA_BUSY
| ATA_DRDY
| ATA_DF
| ATA_DRQ
| ATA_ERR
))
1095 static inline bool lba_28_ok(u64 block
, u32 n_block
)
1097 /* check the ending block number: must be LESS THAN 0x0fffffff */
1098 return ((block
+ n_block
) < ((1 << 28) - 1)) && (n_block
<= 256);
1101 static inline bool lba_48_ok(u64 block
, u32 n_block
)
1103 /* check the ending block number */
1104 return ((block
+ n_block
- 1) < ((u64
)1 << 48)) && (n_block
<= 65536);
1107 #define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff)
1108 #define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16)
1109 #define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff)
1110 #define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf)
1112 #endif /* __LINUX_ATA_H__ */