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[mirror_ubuntu-zesty-kernel.git] / include / linux / ata.h
CommitLineData
1da177e4
LT		 1
2/*
af36d7f0
JG		 3 * Copyright 2003-2004 Red Hat, Inc. All rights reserved.
4 * Copyright 2003-2004 Jeff Garzik
5 *
6 *
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)
10 * any later version.
11 *
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.
16 *
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.
20 *
21 *
22 * libata documentation is available via 'make {ps|pdf}docs',
23 * as Documentation/DocBook/libata.*
24 *
25 * Hardware documentation available from http://www.t13.org/
26 *
1da177e4
LT		 27 */
28
29#ifndef __LINUX_ATA_H__
30#define __LINUX_ATA_H__
31
0c659b82
MW		 32#include <linux/kernel.h>
33#include <linux/string.h>
1da177e4 34#include <linux/types.h>
93734a23 35#include <asm/byteorder.h>
1da177e4
LT		 36
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
40
41enum {
42 /* various global constants */
43 ATA_MAX_DEVICES = 2, /* per bus/port */
44 ATA_MAX_PRD = 256, /* we could make these 256/256 */
45 ATA_SECT_SIZE = 512,
18d6e9d5 46 ATA_MAX_SECTORS_128 = 128,
8b881b04 47 ATA_MAX_SECTORS = 256,
af34d637 48 ATA_MAX_SECTORS_1024 = 1024,
35303d5c 49 ATA_MAX_SECTORS_LBA48 = 65535,/* avoid count to be 0000h */
f8d8e579 50 ATA_MAX_SECTORS_TAPE = 65535,
2983860c 51 ATA_MAX_TRIM_RNUM = 64, /* 512-byte payload / (6-byte LBA + 2-byte range per entry) */
1da177e4
LT		 52
53 ATA_ID_WORDS = 256,
37014c64
BZ		 54 ATA_ID_CONFIG = 0,
55 ATA_ID_CYLS = 1,
56 ATA_ID_HEADS = 3,
57 ATA_ID_SECTORS = 6,
a0cf733b 58 ATA_ID_SERNO = 10,
37014c64 59 ATA_ID_BUF_SIZE = 21,
a0cf733b
TH		 60 ATA_ID_FW_REV = 23,
61 ATA_ID_PROD = 27,
37014c64
BZ		 62 ATA_ID_MAX_MULTSECT = 47,
63 ATA_ID_DWORD_IO = 48,
64 ATA_ID_CAPABILITY = 49,
11e29e21 65 ATA_ID_OLD_PIO_MODES = 51,
37014c64 66 ATA_ID_OLD_DMA_MODES = 52,
11e29e21 67 ATA_ID_FIELD_VALID = 53,
37014c64
BZ		 68 ATA_ID_CUR_CYLS = 54,
69 ATA_ID_CUR_HEADS = 55,
70 ATA_ID_CUR_SECTORS = 56,
71 ATA_ID_MULTSECT = 59,
72 ATA_ID_LBA_CAPACITY = 60,
73 ATA_ID_SWDMA_MODES = 62,
1da177e4 74 ATA_ID_MWDMA_MODES = 63,
11e29e21
AC		 75 ATA_ID_PIO_MODES = 64,
76 ATA_ID_EIDE_DMA_MIN = 65,
37014c64 77 ATA_ID_EIDE_DMA_TIME = 66,
11e29e21
AC		 78 ATA_ID_EIDE_PIO = 67,
79 ATA_ID_EIDE_PIO_IORDY = 68,
e78db4df 80 ATA_ID_ADDITIONAL_SUPP = 69,
37014c64 81 ATA_ID_QUEUE_DEPTH = 75,
583661a8
SH		 82 ATA_ID_SATA_CAPABILITY = 76,
83 ATA_ID_SATA_CAPABILITY_2 = 77,
84 ATA_ID_FEATURE_SUPP = 78,
11e29e21 85 ATA_ID_MAJOR_VER = 80,
37014c64
BZ		 86 ATA_ID_COMMAND_SET_1 = 82,
87 ATA_ID_COMMAND_SET_2 = 83,
88 ATA_ID_CFSSE = 84,
89 ATA_ID_CFS_ENABLE_1 = 85,
90 ATA_ID_CFS_ENABLE_2 = 86,
91 ATA_ID_CSF_DEFAULT = 87,
92 ATA_ID_UDMA_MODES = 88,
93 ATA_ID_HW_CONFIG = 93,
94 ATA_ID_SPG = 98,
95 ATA_ID_LBA_CAPACITY_2 = 100,
18f0f978 96 ATA_ID_SECTOR_SIZE = 106,
6b3b9d73 97 ATA_ID_WWN = 108,
295124dc 98 ATA_ID_LOGICAL_SECTOR_SIZE = 117, /* and 118 */
fe7173c2
HR		 99 ATA_ID_COMMAND_SET_3 = 119,
100 ATA_ID_COMMAND_SET_4 = 120,
37014c64
BZ		 101 ATA_ID_LAST_LUN = 126,
102 ATA_ID_DLF = 128,
103 ATA_ID_CSFO = 129,
104 ATA_ID_CFA_POWER = 160,
d42ad15b
SS		 105 ATA_ID_CFA_KEY_MGMT = 162,
106 ATA_ID_CFA_MODES = 163,
0c659b82 107 ATA_ID_DATA_SET_MGMT = 169,
7b203094 108 ATA_ID_SCT_CMD_XPORT = 206,
8bff7c6b 109 ATA_ID_ROT_SPEED = 217,
1da177e4
LT		 110 ATA_ID_PIO4 = (1 << 1),
111
a0cf733b
TH		 112 ATA_ID_SERNO_LEN = 20,
113 ATA_ID_FW_REV_LEN = 8,
114 ATA_ID_PROD_LEN = 40,
6b3b9d73 115 ATA_ID_WWN_LEN = 8,
a0cf733b 116
1da177e4 117 ATA_PCI_CTL_OFS = 2,
4099d143
BZ		 118
119 ATA_PIO0 = (1 << 0),
120 ATA_PIO1 = ATA_PIO0 | (1 << 1),
121 ATA_PIO2 = ATA_PIO1 | (1 << 2),
122 ATA_PIO3 = ATA_PIO2 | (1 << 3),
123 ATA_PIO4 = ATA_PIO3 | (1 << 4),
124 ATA_PIO5 = ATA_PIO4 | (1 << 5),
125 ATA_PIO6 = ATA_PIO5 | (1 << 6),
126
22ddbd1e
EIB		 127 ATA_PIO4_ONLY = (1 << 4),
128
91a6d4ed
BZ		 129 ATA_SWDMA0 = (1 << 0),
130 ATA_SWDMA1 = ATA_SWDMA0 | (1 << 1),
131 ATA_SWDMA2 = ATA_SWDMA1 | (1 << 2),
132
133 ATA_SWDMA2_ONLY = (1 << 2),
134
135 ATA_MWDMA0 = (1 << 0),
136 ATA_MWDMA1 = ATA_MWDMA0 | (1 << 1),
137 ATA_MWDMA2 = ATA_MWDMA1 | (1 << 2),
22ddbd1e
EIB		 138 ATA_MWDMA3 = ATA_MWDMA2 | (1 << 3),
139 ATA_MWDMA4 = ATA_MWDMA3 | (1 << 4),
91a6d4ed
BZ		 140
141 ATA_MWDMA12_ONLY = (1 << 1) | (1 << 2),
142 ATA_MWDMA2_ONLY = (1 << 2),
143
1da177e4
LT		 144 ATA_UDMA0 = (1 << 0),
145 ATA_UDMA1 = ATA_UDMA0 | (1 << 1),
146 ATA_UDMA2 = ATA_UDMA1 | (1 << 2),
147 ATA_UDMA3 = ATA_UDMA2 | (1 << 3),
148 ATA_UDMA4 = ATA_UDMA3 | (1 << 4),
149 ATA_UDMA5 = ATA_UDMA4 | (1 << 5),
150 ATA_UDMA6 = ATA_UDMA5 | (1 << 6),
151 ATA_UDMA7 = ATA_UDMA6 | (1 << 7),
152 /* ATA_UDMA7 is just for completeness... doesn't exist (yet?). */
153
22ddbd1e
EIB		 154 ATA_UDMA24_ONLY = (1 << 2) | (1 << 4),
155
1da177e4
LT		 156 ATA_UDMA_MASK_40C = ATA_UDMA2, /* udma0-2 */
157
158 /* DMA-related */
159 ATA_PRD_SZ = 8,
160 ATA_PRD_TBL_SZ = (ATA_MAX_PRD * ATA_PRD_SZ),
161 ATA_PRD_EOT = (1 << 31), /* end-of-table flag */
162
163 ATA_DMA_TABLE_OFS = 4,
164 ATA_DMA_STATUS = 2,
165 ATA_DMA_CMD = 0,
166 ATA_DMA_WR = (1 << 3),
167 ATA_DMA_START = (1 << 0),
168 ATA_DMA_INTR = (1 << 2),
169 ATA_DMA_ERR = (1 << 1),
170 ATA_DMA_ACTIVE = (1 << 0),
171
172 /* bits in ATA command block registers */
173 ATA_HOB = (1 << 7), /* LBA48 selector */
174 ATA_NIEN = (1 << 1), /* disable-irq flag */
175 ATA_LBA = (1 << 6), /* LBA28 selector */
176 ATA_DEV1 = (1 << 4), /* Select Device 1 (slave) */
177 ATA_DEVICE_OBS = (1 << 7) | (1 << 5), /* obs bits in dev reg */
178 ATA_DEVCTL_OBS = (1 << 3), /* obsolete bit in devctl reg */
179 ATA_BUSY = (1 << 7), /* BSY status bit */
180 ATA_DRDY = (1 << 6), /* device ready */
181 ATA_DF = (1 << 5), /* device fault */
b5911620 182 ATA_DSC = (1 << 4), /* drive seek complete */
1da177e4 183 ATA_DRQ = (1 << 3), /* data request i/o */
b5911620 184 ATA_CORR = (1 << 2), /* corrected data error */
27f00e53 185 ATA_SENSE = (1 << 1), /* sense code available */
1da177e4
LT		 186 ATA_ERR = (1 << 0), /* have an error */
187 ATA_SRST = (1 << 2), /* software reset */
9be1e979 188 ATA_ICRC = (1 << 7), /* interface CRC error */
b5911620 189 ATA_BBK = ATA_ICRC, /* pre-EIDE: block marked bad */
9be1e979 190 ATA_UNC = (1 << 6), /* uncorrectable media error */
b5911620 191 ATA_MC = (1 << 5), /* media changed */
9be1e979 192 ATA_IDNF = (1 << 4), /* ID not found */
b5911620 193 ATA_MCR = (1 << 3), /* media change requested */
1da177e4 194 ATA_ABORTED = (1 << 2), /* command aborted */
b5911620
BZ		 195 ATA_TRK0NF = (1 << 1), /* track 0 not found */
196 ATA_AMNF = (1 << 0), /* address mark not found */
197 ATAPI_LFS = 0xF0, /* last failed sense */
198 ATAPI_EOM = ATA_TRK0NF, /* end of media */
199 ATAPI_ILI = ATA_AMNF, /* illegal length indication */
200 ATAPI_IO = (1 << 1),
201 ATAPI_COD = (1 << 0),
1da177e4
LT		 202
203 /* ATA command block registers */
204 ATA_REG_DATA = 0x00,
205 ATA_REG_ERR = 0x01,
206 ATA_REG_NSECT = 0x02,
207 ATA_REG_LBAL = 0x03,
208 ATA_REG_LBAM = 0x04,
209 ATA_REG_LBAH = 0x05,
210 ATA_REG_DEVICE = 0x06,
211 ATA_REG_STATUS = 0x07,
212
213 ATA_REG_FEATURE = ATA_REG_ERR, /* and their aliases */
214 ATA_REG_CMD = ATA_REG_STATUS,
215 ATA_REG_BYTEL = ATA_REG_LBAM,
216 ATA_REG_BYTEH = ATA_REG_LBAH,
217 ATA_REG_DEVSEL = ATA_REG_DEVICE,
218 ATA_REG_IRQ = ATA_REG_NSECT,
219
220 /* ATA device commands */
ab2181cf 221 ATA_CMD_DEV_RESET = 0x08, /* ATAPI device reset */
1da177e4 222 ATA_CMD_CHK_POWER = 0xE5, /* check power mode */
972dcafb
DG		 223 ATA_CMD_STANDBY = 0xE2, /* place in standby power mode */
224 ATA_CMD_IDLE = 0xE3, /* place in idle power mode */
1da177e4 225 ATA_CMD_EDD = 0x90, /* execute device diagnostic */
6521148c 226 ATA_CMD_DOWNLOAD_MICRO = 0x92,
3915c3b5 227 ATA_CMD_DOWNLOAD_MICRO_DMA = 0x93,
6521148c 228 ATA_CMD_NOP = 0x00,
1da177e4
LT		 229 ATA_CMD_FLUSH = 0xE7,
230 ATA_CMD_FLUSH_EXT = 0xEA,
231 ATA_CMD_ID_ATA = 0xEC,
232 ATA_CMD_ID_ATAPI = 0xA1,
6521148c 233 ATA_CMD_SERVICE = 0xA2,
1da177e4
LT		 234 ATA_CMD_READ = 0xC8,
235 ATA_CMD_READ_EXT = 0x25,
6521148c
RH		 236 ATA_CMD_READ_QUEUED = 0x26,
237 ATA_CMD_READ_STREAM_EXT = 0x2B,
238 ATA_CMD_READ_STREAM_DMA_EXT = 0x2A,
1da177e4
LT		 239 ATA_CMD_WRITE = 0xCA,
240 ATA_CMD_WRITE_EXT = 0x35,
6521148c
RH		 241 ATA_CMD_WRITE_QUEUED = 0x36,
242 ATA_CMD_WRITE_STREAM_EXT = 0x3B,
243 ATA_CMD_WRITE_STREAM_DMA_EXT = 0x3A,
9a3dccc4 244 ATA_CMD_WRITE_FUA_EXT = 0x3D,
6521148c 245 ATA_CMD_WRITE_QUEUED_FUA_EXT = 0x3E,
88e49034
TH		 246 ATA_CMD_FPDMA_READ = 0x60,
247 ATA_CMD_FPDMA_WRITE = 0x61,
661ce1f0 248 ATA_CMD_NCQ_NON_DATA = 0x63,
ed36911c
MC		 249 ATA_CMD_FPDMA_SEND = 0x64,
250 ATA_CMD_FPDMA_RECV = 0x65,
1da177e4
LT		 251 ATA_CMD_PIO_READ = 0x20,
252 ATA_CMD_PIO_READ_EXT = 0x24,
253 ATA_CMD_PIO_WRITE = 0x30,
254 ATA_CMD_PIO_WRITE_EXT = 0x34,
8cbd6df1
AL		 255 ATA_CMD_READ_MULTI = 0xC4,
256 ATA_CMD_READ_MULTI_EXT = 0x29,
257 ATA_CMD_WRITE_MULTI = 0xC5,
258 ATA_CMD_WRITE_MULTI_EXT = 0x39,
9a3dccc4 259 ATA_CMD_WRITE_MULTI_FUA_EXT = 0xCE,
1da177e4 260 ATA_CMD_SET_FEATURES = 0xEF,
2c3d2a46 261 ATA_CMD_SET_MULTI = 0xC6,
1da177e4
LT		 262 ATA_CMD_PACKET = 0xA0,
263 ATA_CMD_VERIFY = 0x40,
264 ATA_CMD_VERIFY_EXT = 0x42,
6521148c 265 ATA_CMD_WRITE_UNCORR_EXT = 0x45,
2dcb407e
JG		 266 ATA_CMD_STANDBYNOW1 = 0xE0,
267 ATA_CMD_IDLEIMMEDIATE = 0xE1,
054a5fba 268 ATA_CMD_SLEEP = 0xE6,
8bf62ece 269 ATA_CMD_INIT_DEV_PARAMS = 0x91,
b6782728
AC		 270 ATA_CMD_READ_NATIVE_MAX = 0xF8,
271 ATA_CMD_READ_NATIVE_MAX_EXT = 0x27,
1e999736
AC		 272 ATA_CMD_SET_MAX = 0xF9,
273 ATA_CMD_SET_MAX_EXT = 0x37,
6521148c
RH		 274 ATA_CMD_READ_LOG_EXT = 0x2F,
275 ATA_CMD_WRITE_LOG_EXT = 0x3F,
276 ATA_CMD_READ_LOG_DMA_EXT = 0x47,
277 ATA_CMD_WRITE_LOG_DMA_EXT = 0x57,
3915c3b5 278 ATA_CMD_TRUSTED_NONDATA = 0x5B,
6521148c
RH		 279 ATA_CMD_TRUSTED_RCV = 0x5C,
280 ATA_CMD_TRUSTED_RCV_DMA = 0x5D,
281 ATA_CMD_TRUSTED_SND = 0x5E,
282 ATA_CMD_TRUSTED_SND_DMA = 0x5F,
814600ee 283 ATA_CMD_PMP_READ = 0xE4,
3915c3b5 284 ATA_CMD_PMP_READ_DMA = 0xE9,
814600ee 285 ATA_CMD_PMP_WRITE = 0xE8,
3915c3b5 286 ATA_CMD_PMP_WRITE_DMA = 0xEB,
ce2e0abb 287 ATA_CMD_CONF_OVERLAY = 0xB1,
6521148c
RH		 288 ATA_CMD_SEC_SET_PASS = 0xF1,
289 ATA_CMD_SEC_UNLOCK = 0xF2,
290 ATA_CMD_SEC_ERASE_PREP = 0xF3,
291 ATA_CMD_SEC_ERASE_UNIT = 0xF4,
ce2e0abb 292 ATA_CMD_SEC_FREEZE_LOCK = 0xF5,
6521148c
RH		 293 ATA_CMD_SEC_DISABLE_PASS = 0xF6,
294 ATA_CMD_CONFIG_STREAM = 0x51,
476d9894
BZ		 295 ATA_CMD_SMART = 0xB0,
296 ATA_CMD_MEDIA_LOCK = 0xDE,
297 ATA_CMD_MEDIA_UNLOCK = 0xDF,
0c659b82 298 ATA_CMD_DSM = 0x06,
6521148c
RH		 299 ATA_CMD_CHK_MED_CRD_TYP = 0xD1,
300 ATA_CMD_CFA_REQ_EXT_ERR = 0x03,
301 ATA_CMD_CFA_WRITE_NE = 0x38,
302 ATA_CMD_CFA_TRANS_SECT = 0x87,
303 ATA_CMD_CFA_ERASE = 0xC0,
304 ATA_CMD_CFA_WRITE_MULT_NE = 0xCD,
3915c3b5
RH		 305 ATA_CMD_REQ_SENSE_DATA = 0x0B,
306 ATA_CMD_SANITIZE_DEVICE = 0xB4,
28a3fc22 307 ATA_CMD_ZAC_MGMT_IN = 0x4A,
27708a95 308 ATA_CMD_ZAC_MGMT_OUT = 0x9F,
3915c3b5 309
476d9894
BZ		 310 /* marked obsolete in the ATA/ATAPI-7 spec */
311 ATA_CMD_RESTORE = 0x10,
88e49034 312
5c65d8bb
HR		 313 /* Subcmds for ATA_CMD_FPDMA_RECV */
314 ATA_SUBCMD_FPDMA_RECV_RD_LOG_DMA_EXT = 0x01,
28a3fc22 315 ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN = 0x02,
5c65d8bb 316
ed36911c
MC		 317 /* Subcmds for ATA_CMD_FPDMA_SEND */
318 ATA_SUBCMD_FPDMA_SEND_DSM = 0x00,
319 ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT = 0x02,
320
a5703849
HR		 321 /* Subcmds for ATA_CMD_NCQ_NON_DATA */
322 ATA_SUBCMD_NCQ_NON_DATA_ABORT_QUEUE = 0x00,
323 ATA_SUBCMD_NCQ_NON_DATA_SET_FEATURES = 0x05,
324 ATA_SUBCMD_NCQ_NON_DATA_ZERO_EXT = 0x06,
284b3b77 325 ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT = 0x07,
a5703849 326
28a3fc22
HR		 327 /* Subcmds for ATA_CMD_ZAC_MGMT_IN */
328 ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES = 0x00,
329
27708a95
HR		 330 /* Subcmds for ATA_CMD_ZAC_MGMT_OUT */
331 ATA_SUBCMD_ZAC_MGMT_OUT_CLOSE_ZONE = 0x01,
332 ATA_SUBCMD_ZAC_MGMT_OUT_FINISH_ZONE = 0x02,
333 ATA_SUBCMD_ZAC_MGMT_OUT_OPEN_ZONE = 0x03,
334 ATA_SUBCMD_ZAC_MGMT_OUT_RESET_WRITE_POINTER = 0x04,
335
88e49034 336 /* READ_LOG_EXT pages */
fe5af0cc 337 ATA_LOG_DIRECTORY = 0x0,
88e49034 338 ATA_LOG_SATA_NCQ = 0x10,
284b3b77 339 ATA_LOG_NCQ_NON_DATA = 0x12,
ed36911c 340 ATA_LOG_NCQ_SEND_RECV = 0x13,
65fe1f0f
SH		 341 ATA_LOG_SATA_ID_DEV_DATA = 0x30,
342 ATA_LOG_SATA_SETTINGS = 0x08,
6d1003ae 343 ATA_LOG_ZONED_INFORMATION = 0x09,
803739d2
SH		 344 ATA_LOG_DEVSLP_OFFSET = 0x30,
345 ATA_LOG_DEVSLP_SIZE = 0x08,
346 ATA_LOG_DEVSLP_MDAT = 0x00,
65fe1f0f 347 ATA_LOG_DEVSLP_MDAT_MASK = 0x1F,
803739d2
SH		 348 ATA_LOG_DEVSLP_DETO = 0x01,
349 ATA_LOG_DEVSLP_VALID = 0x07,
65fe1f0f 350 ATA_LOG_DEVSLP_VALID_MASK = 0x80,
8e061784 351 ATA_LOG_NCQ_PRIO_OFFSET = 0x09,
1da177e4 352
ed36911c
MC		 353 /* NCQ send and receive log */
354 ATA_LOG_NCQ_SEND_RECV_SUBCMDS_OFFSET = 0x00,
355 ATA_LOG_NCQ_SEND_RECV_SUBCMDS_DSM = (1 << 0),
356 ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET = 0x04,
357 ATA_LOG_NCQ_SEND_RECV_DSM_TRIM = (1 << 0),
358 ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET = 0x08,
5c65d8bb 359 ATA_LOG_NCQ_SEND_RECV_RD_LOG_SUPPORTED = (1 << 0),
ed36911c 360 ATA_LOG_NCQ_SEND_RECV_WR_LOG_OFFSET = 0x0C,
5c65d8bb 361 ATA_LOG_NCQ_SEND_RECV_WR_LOG_SUPPORTED = (1 << 0),
28a3fc22
HR		 362 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OFFSET = 0x10,
363 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OUT_SUPPORTED = (1 << 0),
364 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_IN_SUPPORTED = (1 << 1),
365 ATA_LOG_NCQ_SEND_RECV_SIZE = 0x14,
ed36911c 366
a5703849
HR		 367 /* NCQ Non-Data log */
368 ATA_LOG_NCQ_NON_DATA_SUBCMDS_OFFSET = 0x00,
369 ATA_LOG_NCQ_NON_DATA_ABORT_OFFSET = 0x00,
370 ATA_LOG_NCQ_NON_DATA_ABORT_NCQ = (1 << 0),
371 ATA_LOG_NCQ_NON_DATA_ABORT_ALL = (1 << 1),
372 ATA_LOG_NCQ_NON_DATA_ABORT_STREAMING = (1 << 2),
373 ATA_LOG_NCQ_NON_DATA_ABORT_NON_STREAMING = (1 << 3),
374 ATA_LOG_NCQ_NON_DATA_ABORT_SELECTED = (1 << 4),
375 ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OFFSET = 0x1C,
376 ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OUT = (1 << 0),
377 ATA_LOG_NCQ_NON_DATA_SIZE = 0x40,
ed36911c 378
5a5dbd18
ML		 379 /* READ/WRITE LONG (obsolete) */
380 ATA_CMD_READ_LONG = 0x22,
381 ATA_CMD_READ_LONG_ONCE = 0x23,
382 ATA_CMD_WRITE_LONG = 0x32,
383 ATA_CMD_WRITE_LONG_ONCE = 0x33,
384
1da177e4
LT		 385 /* SETFEATURES stuff */
386 SETFEATURES_XFER = 0x03,
387 XFER_UDMA_7 = 0x47,
388 XFER_UDMA_6 = 0x46,
389 XFER_UDMA_5 = 0x45,
390 XFER_UDMA_4 = 0x44,
391 XFER_UDMA_3 = 0x43,
392 XFER_UDMA_2 = 0x42,
393 XFER_UDMA_1 = 0x41,
394 XFER_UDMA_0 = 0x40,
b352e57d
AC		 395 XFER_MW_DMA_4 = 0x24, /* CFA only */
396 XFER_MW_DMA_3 = 0x23, /* CFA only */
1da177e4
LT		 397 XFER_MW_DMA_2 = 0x22,
398 XFER_MW_DMA_1 = 0x21,
399 XFER_MW_DMA_0 = 0x20,
b4b52db7
AC		 400 XFER_SW_DMA_2 = 0x12,
401 XFER_SW_DMA_1 = 0x11,
402 XFER_SW_DMA_0 = 0x10,
b352e57d
AC		 403 XFER_PIO_6 = 0x0E, /* CFA only */
404 XFER_PIO_5 = 0x0D, /* CFA only */
1da177e4
LT		 405 XFER_PIO_4 = 0x0C,
406 XFER_PIO_3 = 0x0B,
407 XFER_PIO_2 = 0x0A,
408 XFER_PIO_1 = 0x09,
409 XFER_PIO_0 = 0x08,
1da177e4
LT		 410 XFER_PIO_SLOW = 0x00,
411
3057ac3c 412 SETFEATURES_WC_ON = 0x02, /* Enable write cache */
413 SETFEATURES_WC_OFF = 0x82, /* Disable write cache */
414
0c12735e
TY		 415 SETFEATURES_RA_ON = 0xaa, /* Enable read look-ahead */
416 SETFEATURES_RA_OFF = 0x55, /* Disable read look-ahead */
417
476d9894
BZ		 418 /* Enable/Disable Automatic Acoustic Management */
419 SETFEATURES_AAM_ON = 0x42,
420 SETFEATURES_AAM_OFF = 0xC2,
421
974e0a45
DLM		 422 SETFEATURES_SPINUP = 0x07, /* Spin-up drive */
423 SETFEATURES_SPINUP_TIMEOUT = 30000, /* 30s timeout for drive spin-up from PUIS */
169439c2 424
9f45cbd3
KCA		 425 SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */
426 SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */
427
428 /* SETFEATURE Sector counts for SATA features */
fa5b561c 429 SATA_FPDMA_OFFSET = 0x01, /* FPDMA non-zero buffer offsets */
f1bce7f8
TH		 430 SATA_FPDMA_AA = 0x02, /* FPDMA Setup FIS Auto-Activate */
431 SATA_DIPM = 0x03, /* Device Initiated Power Management */
fa5b561c 432 SATA_FPDMA_IN_ORDER = 0x04, /* FPDMA in-order data delivery */
f1bce7f8 433 SATA_AN = 0x05, /* Asynchronous Notification */
fa5b561c 434 SATA_SSP = 0x06, /* Software Settings Preservation */
65fe1f0f 435 SATA_DEVSLP = 0x09, /* Device Sleep */
9f45cbd3 436
e87fd28c
HR		 437 SETFEATURE_SENSE_DATA = 0xC3, /* Sense Data Reporting feature */
438
ce2e0abb
TH		 439 /* feature values for SET_MAX */
440 ATA_SET_MAX_ADDR = 0x00,
441 ATA_SET_MAX_PASSWD = 0x01,
442 ATA_SET_MAX_LOCK = 0x02,
443 ATA_SET_MAX_UNLOCK = 0x03,
444 ATA_SET_MAX_FREEZE_LOCK = 0x04,
445
446 /* feature values for DEVICE CONFIGURATION OVERLAY */
447 ATA_DCO_RESTORE = 0xC0,
448 ATA_DCO_FREEZE_LOCK = 0xC1,
449 ATA_DCO_IDENTIFY = 0xC2,
450 ATA_DCO_SET = 0xC3,
451
476d9894
BZ		 452 /* feature values for SMART */
453 ATA_SMART_ENABLE = 0xD8,
454 ATA_SMART_READ_VALUES = 0xD0,
455 ATA_SMART_READ_THRESHOLDS = 0xD1,
456
0c659b82
MW		 457 /* feature values for Data Set Management */
458 ATA_DSM_TRIM = 0x01,
459
476d9894
BZ		 460 /* password used in LBA Mid / LBA High for executing SMART commands */
461 ATA_SMART_LBAM_PASS = 0x4F,
462 ATA_SMART_LBAH_PASS = 0xC2,
463
1da177e4
LT		 464 /* ATAPI stuff */
465 ATAPI_PKT_DMA = (1 << 0),
466 ATAPI_DMADIR = (1 << 2), /* ATAPI data dir:
467 0=to device, 1=to host */
468 ATAPI_CDB_LEN = 16,
469
814600ee
TH		 470 /* PMP stuff */
471 SATA_PMP_MAX_PORTS = 15,
472 SATA_PMP_CTRL_PORT = 15,
473
474 SATA_PMP_GSCR_DWORDS = 128,
475 SATA_PMP_GSCR_PROD_ID = 0,
476 SATA_PMP_GSCR_REV = 1,
477 SATA_PMP_GSCR_PORT_INFO = 2,
478 SATA_PMP_GSCR_ERROR = 32,
479 SATA_PMP_GSCR_ERROR_EN = 33,
480 SATA_PMP_GSCR_FEAT = 64,
481 SATA_PMP_GSCR_FEAT_EN = 96,
482
483 SATA_PMP_PSCR_STATUS = 0,
484 SATA_PMP_PSCR_ERROR = 1,
485 SATA_PMP_PSCR_CONTROL = 2,
486
487 SATA_PMP_FEAT_BIST = (1 << 0),
488 SATA_PMP_FEAT_PMREQ = (1 << 1),
489 SATA_PMP_FEAT_DYNSSC = (1 << 2),
490 SATA_PMP_FEAT_NOTIFY = (1 << 3),
491
1da177e4
LT		 492 /* cable types */
493 ATA_CBL_NONE = 0,
494 ATA_CBL_PATA40 = 1,
495 ATA_CBL_PATA80 = 2,
c88f90c3
TH		 496 ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */
497 ATA_CBL_PATA_UNK = 4, /* don't know, maybe 80c? */
498 ATA_CBL_PATA_IGN = 5, /* don't know, ignore cable handling */
499 ATA_CBL_SATA = 6,
1da177e4
LT		 500
501 /* SATA Status and Control Registers */
502 SCR_STATUS = 0,
503 SCR_ERROR = 1,
504 SCR_CONTROL = 2,
505 SCR_ACTIVE = 3,
506 SCR_NOTIFICATION = 4,
507
9be1e979
TH		 508 /* SError bits */
509 SERR_DATA_RECOVERED = (1 << 0), /* recovered data error */
510 SERR_COMM_RECOVERED = (1 << 1), /* recovered comm failure */
511 SERR_DATA = (1 << 8), /* unrecovered data error */
512 SERR_PERSISTENT = (1 << 9), /* persistent data/comm error */
513 SERR_PROTOCOL = (1 << 10), /* protocol violation */
514 SERR_INTERNAL = (1 << 11), /* host internal error */
515 SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */
1333e194
RH		 516 SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */
517 SERR_COMM_WAKE = (1 << 18), /* Comm wake */
518 SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */
519 SERR_DISPARITY = (1 << 20), /* Disparity */
520 SERR_CRC = (1 << 21), /* CRC error */
521 SERR_HANDSHAKE = (1 << 22), /* Handshake error */
522 SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */
523 SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */
524 SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */
9be1e979 525 SERR_DEV_XCHG = (1 << 26), /* device exchanged */
1da177e4
LT		 526};
527
37f92d77
CH		 528enum ata_prot_flags {
529 /* protocol flags */
530 ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */
531 ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */
532 ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */
533 ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */
534
535 /* taskfile protocols */
536 ATA_PROT_UNKNOWN = (u8)-1,
537 ATA_PROT_NODATA = 0,
538 ATA_PROT_PIO = ATA_PROT_FLAG_PIO,
539 ATA_PROT_DMA = ATA_PROT_FLAG_DMA,
540 ATA_PROT_NCQ_NODATA = ATA_PROT_FLAG_NCQ,
541 ATA_PROT_NCQ = ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ,
542 ATAPI_PROT_NODATA = ATA_PROT_FLAG_ATAPI,
543 ATAPI_PROT_PIO = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO,
544 ATAPI_PROT_DMA = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA,
1da177e4
LT		 545};
546
547enum ata_ioctls {
287e6611
AB		 548 ATA_IOC_GET_IO32 = 0x309, /* HDIO_GET_32BIT */
549 ATA_IOC_SET_IO32 = 0x324, /* HDIO_SET_32BIT */
1da177e4
LT		 550};
551
552/* core structures */
553
f60d7011 554struct ata_bmdma_prd {
4ca4e439
AV		 555 __le32 addr;
556 __le32 flags_len;
1da177e4
LT		 557};
558
405e66b3
TH		 559/*
560 * id tests
561 */
37014c64
BZ		 562#define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0)
563#define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9))
564#define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (1 << 8))
583661a8 565#define ata_id_has_ncq(id) ((id)[ATA_ID_SATA_CAPABILITY] & (1 << 8))
37014c64 566#define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1)
0628ee7c 567#define ata_id_removable(id) ((id)[ATA_ID_CONFIG] & (1 << 7))
854c73a2 568#define ata_id_has_atapi_AN(id) \
583661a8
SH		 569 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
570 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
571 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 5)))
388539f3 572#define ata_id_has_fpdma_aa(id) \
583661a8
SH		 573 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
574 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
575 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 2)))
37014c64
BZ		 576#define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10))
577#define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11))
1da177e4
LT		 578#define ata_id_u32(id,n) \
579 (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)]))
580#define ata_id_u64(id,n) \
581 ( ((u64) (id)[(n) + 3] << 48) | \
582 ((u64) (id)[(n) + 2] << 32) | \
583 ((u64) (id)[(n) + 1] << 16) | \
584 ((u64) (id)[(n) + 0]) )
585
37014c64 586#define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20)
583661a8 587#define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4))
65fe1f0f 588#define ata_id_has_devslp(id) ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8))
5b01e4b9
HR		 589#define ata_id_has_ncq_autosense(id) \
590 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 7))
312f7da2 591
ca77329f
KCA		 592static inline bool ata_id_has_hipm(const u16 *id)
593{
583661a8 594 u16 val = id[ATA_ID_SATA_CAPABILITY];
ca77329f
KCA		 595
596 if (val == 0 || val == 0xffff)
597 return false;
598
599 return val & (1 << 9);
600}
601
602static inline bool ata_id_has_dipm(const u16 *id)
603{
583661a8 604 u16 val = id[ATA_ID_FEATURE_SUPP];
ca77329f
KCA		 605
606 if (val == 0 || val == 0xffff)
607 return false;
608
609 return val & (1 << 3);
610}
611
ae8d4ee7 612
4dce8ba9 613static inline bool ata_id_has_fua(const u16 *id)
c7293870 614{
37014c64 615 if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000)
4dce8ba9 616 return false;
37014c64 617 return id[ATA_ID_CFSSE] & (1 << 6);
c7293870
AC		 618}
619
4dce8ba9 620static inline bool ata_id_has_flush(const u16 *id)
c7293870 621{
37014c64 622 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
4dce8ba9 623 return false;
37014c64 624 return id[ATA_ID_COMMAND_SET_2] & (1 << 12);
c7293870
AC		 625}
626
4dce8ba9 627static inline bool ata_id_flush_enabled(const u16 *id)
4b58f17d
BZ		 628{
629 if (ata_id_has_flush(id) == 0)
4dce8ba9 630 return false;
4b58f17d 631 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
4dce8ba9 632 return false;
4b58f17d
BZ		 633 return id[ATA_ID_CFS_ENABLE_2] & (1 << 12);
634}
635
4dce8ba9 636static inline bool ata_id_has_flush_ext(const u16 *id)
c7293870 637{
37014c64 638 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
4dce8ba9 639 return false;
37014c64 640 return id[ATA_ID_COMMAND_SET_2] & (1 << 13);
c7293870
AC		 641}
642
4dce8ba9 643static inline bool ata_id_flush_ext_enabled(const u16 *id)
ff2779b5
BZ		 644{
645 if (ata_id_has_flush_ext(id) == 0)
4dce8ba9 646 return false;
ff2779b5 647 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
4dce8ba9 648 return false;
ff2779b5
BZ		 649 /*
650 * some Maxtor disks have bit 13 defined incorrectly
651 * so check bit 10 too
652 */
653 return (id[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400;
654}
655
295124dc 656static inline u32 ata_id_logical_sector_size(const u16 *id)
18f0f978 657{
295124dc
GG		 658 /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128.
659 * IDENTIFY DEVICE data, word 117-118.
660 * 0xd000 ignores bit 13 (logical:physical > 1)
661 */
662 if ((id[ATA_ID_SECTOR_SIZE] & 0xd000) == 0x5000)
663 return (((id[ATA_ID_LOGICAL_SECTOR_SIZE+1] << 16)
664 + id[ATA_ID_LOGICAL_SECTOR_SIZE]) * sizeof(u16)) ;
665 return ATA_SECT_SIZE;
666}
667
668static inline u8 ata_id_log2_per_physical_sector(const u16 *id)
669{
670 /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128.
671 * IDENTIFY DEVICE data, word 106.
672 * 0xe000 ignores bit 12 (logical sector > 512 bytes)
673 */
674 if ((id[ATA_ID_SECTOR_SIZE] & 0xe000) == 0x6000)
675 return (id[ATA_ID_SECTOR_SIZE] & 0xf);
676 return 0;
18f0f978
CH		 677}
678
295124dc
GG		 679/* Offset of logical sectors relative to physical sectors.
680 *
681 * If device has more than one logical sector per physical sector
682 * (aka 512 byte emulation), vendors might offset the "sector 0" address
683 * so sector 63 is "naturally aligned" - e.g. FAT partition table.
684 * This avoids Read/Mod/Write penalties when using FAT partition table
685 * and updating "well aligned" (FS perspective) physical sectors on every
686 * transaction.
687 */
688static inline u16 ata_id_logical_sector_offset(const u16 *id,
689 u8 log2_per_phys)
18f0f978 690{
295124dc
GG		 691 u16 word_209 = id[209];
692
693 if ((log2_per_phys > 1) && (word_209 & 0xc000) == 0x4000) {
694 u16 first = word_209 & 0x3fff;
695 if (first > 0)
696 return (1 << log2_per_phys) - first;
697 }
698 return 0;
18f0f978
CH		 699}
700
4dce8ba9 701static inline bool ata_id_has_lba48(const u16 *id)
c7293870 702{
37014c64 703 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
4dce8ba9 704 return false;
37014c64 705 if (!ata_id_u64(id, ATA_ID_LBA_CAPACITY_2))
4dce8ba9 706 return false;
37014c64 707 return id[ATA_ID_COMMAND_SET_2] & (1 << 10);
c7293870
AC		 708}
709
4dce8ba9 710static inline bool ata_id_lba48_enabled(const u16 *id)
942dcd85
BZ		 711{
712 if (ata_id_has_lba48(id) == 0)
4dce8ba9 713 return false;
942dcd85 714 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
4dce8ba9 715 return false;
942dcd85
BZ		 716 return id[ATA_ID_CFS_ENABLE_2] & (1 << 10);
717}
718
4dce8ba9 719static inline bool ata_id_hpa_enabled(const u16 *id)
c7293870
AC		 720{
721 /* Yes children, word 83 valid bits cover word 82 data */
37014c64 722 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
4dce8ba9 723 return false;
c7293870 724 /* And 87 covers 85-87 */
37014c64 725 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
4dce8ba9 726 return false;
c7293870 727 /* Check command sets enabled as well as supported */
37014c64 728 if ((id[ATA_ID_CFS_ENABLE_1] & (1 << 10)) == 0)
4dce8ba9 729 return false;
37014c64 730 return id[ATA_ID_COMMAND_SET_1] & (1 << 10);
c7293870
AC		 731}
732
4dce8ba9 733static inline bool ata_id_has_wcache(const u16 *id)
c7293870
AC		 734{
735 /* Yes children, word 83 valid bits cover word 82 data */
37014c64 736 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
4dce8ba9 737 return false;
37014c64 738 return id[ATA_ID_COMMAND_SET_1] & (1 << 5);
c7293870
AC		 739}
740
4dce8ba9 741static inline bool ata_id_has_pm(const u16 *id)
c7293870 742{
37014c64 743 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
4dce8ba9 744 return false;
37014c64 745 return id[ATA_ID_COMMAND_SET_1] & (1 << 3);
c7293870
AC		 746}
747
4dce8ba9 748static inline bool ata_id_rahead_enabled(const u16 *id)
c7293870 749{
37014c64 750 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
4dce8ba9 751 return false;
37014c64 752 return id[ATA_ID_CFS_ENABLE_1] & (1 << 6);
c7293870
AC		 753}
754
4dce8ba9 755static inline bool ata_id_wcache_enabled(const u16 *id)
c7293870 756{
37014c64 757 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
4dce8ba9 758 return false;
37014c64 759 return id[ATA_ID_CFS_ENABLE_1] & (1 << 5);
c7293870
AC		 760}
761
9faa6438
HR		 762static inline bool ata_id_has_read_log_dma_ext(const u16 *id)
763{
406c057c 764 /* Word 86 must have bit 15 set */
9faa6438
HR		 765 if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15)))
766 return false;
406c057c
MP		 767
768 /* READ LOG DMA EXT support can be signaled either from word 119
769 * or from word 120. The format is the same for both words: Bit
770 * 15 must be cleared, bit 14 set and bit 3 set.
771 */
772 if ((id[ATA_ID_COMMAND_SET_3] & 0xC008) == 0x4008 ||
773 (id[ATA_ID_COMMAND_SET_4] & 0xC008) == 0x4008)
774 return true;
775
776 return false;
9faa6438
HR		 777}
778
e87fd28c
HR		 779static inline bool ata_id_has_sense_reporting(const u16 *id)
780{
781 if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15)))
782 return false;
783 return id[ATA_ID_COMMAND_SET_3] & (1 << 6);
784}
785
786static inline bool ata_id_sense_reporting_enabled(const u16 *id)
787{
788 if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15)))
789 return false;
790 return id[ATA_ID_COMMAND_SET_4] & (1 << 6);
791}
792
7b203094
ST		 793/**
794 *
795 * Word: 206 - SCT Command Transport
796 * 15:12 - Vendor Specific
797 * 11:6 - Reserved
798 * 5 - SCT Command Transport Data Tables supported
799 * 4 - SCT Command Transport Features Control supported
800 * 3 - SCT Command Transport Error Recovery Control supported
801 * 2 - SCT Command Transport Write Same supported
802 * 1 - SCT Command Transport Long Sector Access supported
803 * 0 - SCT Command Transport supported
804 */
805static inline bool ata_id_sct_data_tables(const u16 *id)
806{
807 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 5) ? true : false;
808}
809
810static inline bool ata_id_sct_features_ctrl(const u16 *id)
811{
812 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 4) ? true : false;
813}
814
815static inline bool ata_id_sct_error_recovery_ctrl(const u16 *id)
816{
817 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 3) ? true : false;
818}
819
820static inline bool ata_id_sct_write_same(const u16 *id)
821{
822 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 2) ? true : false;
823}
824
825static inline bool ata_id_sct_long_sector_access(const u16 *id)
826{
827 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 1) ? true : false;
828}
829
830static inline bool ata_id_sct_supported(const u16 *id)
831{
832 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 0) ? true : false;
833}
834
c7293870
AC		 835/**
836 * ata_id_major_version - get ATA level of drive
837 * @id: Identify data
838 *
839 * Caveats:
840 * ATA-1 considers identify optional
841 * ATA-2 introduces mandatory identify
842 * ATA-3 introduces word 80 and accurate reporting
843 *
844 * The practical impact of this is that ata_id_major_version cannot
2dcb407e 845 * reliably report on drives below ATA3.
c7293870
AC		 846 */
847
3d2ca910
TH		 848static inline unsigned int ata_id_major_version(const u16 *id)
849{
850 unsigned int mver;
851
b352e57d
AC		 852 if (id[ATA_ID_MAJOR_VER] == 0xFFFF)
853 return 0;
854
3d2ca910
TH		 855 for (mver = 14; mver >= 1; mver--)
856 if (id[ATA_ID_MAJOR_VER] & (1 << mver))
857 break;
858 return mver;
859}
860
4dce8ba9 861static inline bool ata_id_is_sata(const u16 *id)
32d90911 862{
367d7e78
BZ		 863 /*
864 * See if word 93 is 0 AND drive is at least ATA-5 compatible
865 * verifying that word 80 by casting it to a signed type --
866 * this trick allows us to filter out the reserved values of
867 * 0x0000 and 0xffff along with the earlier ATA revisions...
868 */
869 if (id[ATA_ID_HW_CONFIG] == 0 && (short)id[ATA_ID_MAJOR_VER] >= 0x0020)
4dce8ba9
HR		 870 return true;
871 return false;
32d90911
TH		 872}
873
4dce8ba9 874static inline bool ata_id_has_tpm(const u16 *id)
ae8d4ee7
AC		 875{
876 /* The TPM bits are only valid on ATA8 */
877 if (ata_id_major_version(id) < 8)
4dce8ba9 878 return false;
ae8d4ee7 879 if ((id[48] & 0xC000) != 0x4000)
4dce8ba9 880 return false;
ae8d4ee7
AC		 881 return id[48] & (1 << 0);
882}
883
4dce8ba9 884static inline bool ata_id_has_dword_io(const u16 *id)
ae8d4ee7
AC		 885{
886 /* ATA 8 reuses this flag for "trusted" computing */
887 if (ata_id_major_version(id) > 7)
4dce8ba9
HR		 888 return false;
889 return id[ATA_ID_DWORD_IO] & (1 << 0);
ae8d4ee7
AC		 890}
891
4dce8ba9 892static inline bool ata_id_has_unload(const u16 *id)
ea6ce53c
EO		 893{
894 if (ata_id_major_version(id) >= 7 &&
895 (id[ATA_ID_CFSSE] & 0xC000) == 0x4000 &&
896 id[ATA_ID_CFSSE] & (1 << 13))
4dce8ba9
HR		 897 return true;
898 return false;
ea6ce53c
EO		 899}
900
6b3b9d73
HR		 901static inline bool ata_id_has_wwn(const u16 *id)
902{
903 return (id[ATA_ID_CSF_DEFAULT] & 0xC100) == 0x4100;
904}
905
4bca3286
MP		 906static inline int ata_id_form_factor(const u16 *id)
907{
908 u16 val = id[168];
909
910 if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff)
911 return 0;
912
913 val &= 0xf;
914
915 if (val > 5)
916 return 0;
917
918 return val;
919}
920
921static inline int ata_id_rotation_rate(const u16 *id)
922{
923 u16 val = id[217];
924
925 if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff)
926 return 0;
927
928 if (val > 1 && val < 0x401)
929 return 0;
930
931 return val;
932}
933
ed36911c
MC		 934static inline bool ata_id_has_ncq_send_and_recv(const u16 *id)
935{
936 return id[ATA_ID_SATA_CAPABILITY_2] & BIT(6);
937}
938
284b3b77
HR		 939static inline bool ata_id_has_ncq_non_data(const u16 *id)
940{
941 return id[ATA_ID_SATA_CAPABILITY_2] & BIT(5);
942}
943
8e061784
AM		 944static inline bool ata_id_has_ncq_prio(const u16 *id)
945{
946 return id[ATA_ID_SATA_CAPABILITY] & BIT(12);
947}
948
4dce8ba9 949static inline bool ata_id_has_trim(const u16 *id)
0c659b82
MW		 950{
951 if (ata_id_major_version(id) >= 7 &&
952 (id[ATA_ID_DATA_SET_MGMT] & 1))
4dce8ba9
HR		 953 return true;
954 return false;
0c659b82
MW		 955}
956
4dce8ba9 957static inline bool ata_id_has_zero_after_trim(const u16 *id)
e78db4df
MP		 958{
959 /* DSM supported, deterministic read, and read zero after trim set */
960 if (ata_id_has_trim(id) &&
961 (id[ATA_ID_ADDITIONAL_SUPP] & 0x4020) == 0x4020)
4dce8ba9 962 return true;
e78db4df 963
4dce8ba9 964 return false;
e78db4df
MP		 965}
966
4dce8ba9 967static inline bool ata_id_current_chs_valid(const u16 *id)
8bf62ece 968{
9bec2e38
JG		 969 /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command
970 has not been issued to the device then the values of
37014c64
BZ		 971 id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */
972 return (id[ATA_ID_FIELD_VALID] & 1) && /* Current translation valid */
973 id[ATA_ID_CUR_CYLS] && /* cylinders in current translation */
974 id[ATA_ID_CUR_HEADS] && /* heads in current translation */
975 id[ATA_ID_CUR_HEADS] <= 16 &&
976 id[ATA_ID_CUR_SECTORS]; /* sectors in current translation */
8bf62ece
AL		 977}
978
4dce8ba9 979static inline bool ata_id_is_cfa(const u16 *id)
b352e57d 980{
4b7d1c05
BG		 981 if ((id[ATA_ID_CONFIG] == 0x848A) || /* Traditional CF */
982 (id[ATA_ID_CONFIG] == 0x844A)) /* Delkin Devices CF */
4dce8ba9 983 return true;
2999b58b
SS		 984 /*
985 * CF specs don't require specific value in the word 0 anymore and yet
986 * they forbid to report the ATA version in the word 80 and require the
987 * CFA feature set support to be indicated in the word 83 in this case.
988 * Unfortunately, some cards only follow either of this requirements,
989 * and while those that don't indicate CFA feature support need some
990 * sort of quirk list, it seems impractical for the ones that do...
991 */
4dce8ba9 992 return (id[ATA_ID_COMMAND_SET_2] & 0xC004) == 0x4004;
b352e57d
AC		 993}
994
4dce8ba9 995static inline bool ata_id_is_ssd(const u16 *id)
8bff7c6b
JA		 996{
997 return id[ATA_ID_ROT_SPEED] == 0x01;
998}
999
856c4663
HR		 1000static inline u8 ata_id_zoned_cap(const u16 *id)
1001{
1002 return (id[ATA_ID_ADDITIONAL_SUPP] & 0x3);
1003}
1004
4dce8ba9 1005static inline bool ata_id_pio_need_iordy(const u16 *id, const u8 pio)
6dae44f9
BZ		 1006{
1007 /* CF spec. r4.1 Table 22 says no IORDY on PIO5 and PIO6. */
1008 if (pio > 4 && ata_id_is_cfa(id))
4dce8ba9 1009 return false;
6dae44f9
BZ		 1010 /* For PIO3 and higher it is mandatory. */
1011 if (pio > 2)
4dce8ba9 1012 return true;
6dae44f9 1013 /* Turn it on when possible. */
4dce8ba9 1014 return ata_id_has_iordy(id);
6dae44f9
BZ		 1015}
1016
4dce8ba9 1017static inline bool ata_drive_40wire(const u16 *dev_id)
fc085150 1018{
32d90911 1019 if (ata_id_is_sata(dev_id))
4dce8ba9 1020 return false; /* SATA */
37014c64 1021 if ((dev_id[ATA_ID_HW_CONFIG] & 0xE000) == 0x6000)
4dce8ba9
HR		 1022 return false; /* 80 wire */
1023 return true;
fc085150
AC		 1024}
1025
4dce8ba9 1026static inline bool ata_drive_40wire_relaxed(const u16 *dev_id)
6bbfd53d 1027{
37014c64 1028 if ((dev_id[ATA_ID_HW_CONFIG] & 0x2000) == 0x2000)
4dce8ba9
HR		 1029 return false; /* 80 wire */
1030 return true;
6bbfd53d
AC		 1031}
1032
057ace5e 1033static inline int atapi_cdb_len(const u16 *dev_id)
1da177e4 1034{
37014c64 1035 u16 tmp = dev_id[ATA_ID_CONFIG] & 0x3;
1da177e4
LT		 1036 switch (tmp) {
1037 case 0: return 12;
1038 case 1: return 16;
1039 default: return -1;
1040 }
1041}
1042
d8668fcb 1043static inline int atapi_command_packet_set(const u16 *dev_id)
f8d8e579 1044{
37014c64 1045 return (dev_id[ATA_ID_CONFIG] >> 8) & 0x1f;
f8d8e579
TB		 1046}
1047
4dce8ba9 1048static inline bool atapi_id_dmadir(const u16 *dev_id)
91163006
TH		 1049{
1050 return ata_id_major_version(dev_id) >= 7 && (dev_id[62] & 0x8000);
1051}
1052
a02227c9
BZ		 1053/*
1054 * ata_id_is_lba_capacity_ok() performs a sanity check on
1055 * the claimed LBA capacity value for the device.
1056 *
1057 * Returns 1 if LBA capacity looks sensible, 0 otherwise.
1058 *
1059 * It is called only once for each device.
1060 */
4dce8ba9 1061static inline bool ata_id_is_lba_capacity_ok(u16 *id)
a02227c9
BZ		 1062{
1063 unsigned long lba_sects, chs_sects, head, tail;
1064
1065 /* No non-LBA info .. so valid! */
1066 if (id[ATA_ID_CYLS] == 0)
4dce8ba9 1067 return true;
a02227c9
BZ		 1068
1069 lba_sects = ata_id_u32(id, ATA_ID_LBA_CAPACITY);
1070
1071 /*
1072 * The ATA spec tells large drives to return
1073 * C/H/S = 16383/16/63 independent of their size.
1074 * Some drives can be jumpered to use 15 heads instead of 16.
1075 * Some drives can be jumpered to use 4092 cyls instead of 16383.
1076 */
1077 if ((id[ATA_ID_CYLS] == 16383 ||
1078 (id[ATA_ID_CYLS] == 4092 && id[ATA_ID_CUR_CYLS] == 16383)) &&
1079 id[ATA_ID_SECTORS] == 63 &&
1080 (id[ATA_ID_HEADS] == 15 || id[ATA_ID_HEADS] == 16) &&
1081 (lba_sects >= 16383 * 63 * id[ATA_ID_HEADS]))
4dce8ba9 1082 return true;
a02227c9
BZ		 1083
1084 chs_sects = id[ATA_ID_CYLS] * id[ATA_ID_HEADS] * id[ATA_ID_SECTORS];
1085
1086 /* perform a rough sanity check on lba_sects: within 10% is OK */
1087 if (lba_sects - chs_sects < chs_sects/10)
4dce8ba9 1088 return true;
a02227c9
BZ		 1089
1090 /* some drives have the word order reversed */
1091 head = (lba_sects >> 16) & 0xffff;
1092 tail = lba_sects & 0xffff;
1093 lba_sects = head | (tail << 16);
1094
1095 if (lba_sects - chs_sects < chs_sects/10) {
1096 *(__le32 *)&id[ATA_ID_LBA_CAPACITY] = __cpu_to_le32(lba_sects);
4dce8ba9 1097 return true; /* LBA capacity is (now) good */
a02227c9
BZ		 1098 }
1099
4dce8ba9 1100 return false; /* LBA capacity value may be bad */
a02227c9
BZ		 1101}
1102
93734a23
BZ		 1103static inline void ata_id_to_hd_driveid(u16 *id)
1104{
1105#ifdef __BIG_ENDIAN
1106 /* accessed in struct hd_driveid as 8-bit values */
1107 id[ATA_ID_MAX_MULTSECT] = __cpu_to_le16(id[ATA_ID_MAX_MULTSECT]);
1108 id[ATA_ID_CAPABILITY] = __cpu_to_le16(id[ATA_ID_CAPABILITY]);
1109 id[ATA_ID_OLD_PIO_MODES] = __cpu_to_le16(id[ATA_ID_OLD_PIO_MODES]);
1110 id[ATA_ID_OLD_DMA_MODES] = __cpu_to_le16(id[ATA_ID_OLD_DMA_MODES]);
1111 id[ATA_ID_MULTSECT] = __cpu_to_le16(id[ATA_ID_MULTSECT]);
1112
1113 /* as 32-bit values */
1114 *(u32 *)&id[ATA_ID_LBA_CAPACITY] = ata_id_u32(id, ATA_ID_LBA_CAPACITY);
1115 *(u32 *)&id[ATA_ID_SPG] = ata_id_u32(id, ATA_ID_SPG);
1116
1117 /* as 64-bit value */
1118 *(u64 *)&id[ATA_ID_LBA_CAPACITY_2] =
1119 ata_id_u64(id, ATA_ID_LBA_CAPACITY_2);
1120#endif
1121}
1122
4dce8ba9 1123static inline bool ata_ok(u8 status)
1da177e4
LT		 1124{
1125 return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR))
1126 == ATA_DRDY);
1127}
1128
4dce8ba9 1129static inline bool lba_28_ok(u64 block, u32 n_block)
c6a33e24 1130{
45c4d015 1131 /* check the ending block number: must be LESS THAN 0x0fffffff */
35303d5c 1132 return ((block + n_block) < ((1 << 28) - 1)) && (n_block <= ATA_MAX_SECTORS);
c6a33e24
AL		 1133}
1134
4dce8ba9 1135static inline bool lba_48_ok(u64 block, u32 n_block)
c6a33e24
AL		 1136{
1137 /* check the ending block number */
35303d5c 1138 return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= ATA_MAX_SECTORS_LBA48);
c6a33e24
AL		 1139}
1140
814600ee
TH		 1141#define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff)
1142#define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16)
1143#define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff)
1144#define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf)
1145
1da177e4 1146#endif /* __LINUX_ATA_H__ */
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