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c82ee6d3 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 LT |
2 | |
3 | /* | |
af36d7f0 JG |
4 | * Copyright 2003-2004 Red Hat, Inc. All rights reserved. |
5 | * Copyright 2003-2004 Jeff Garzik | |
6 | * | |
af36d7f0 | 7 | * libata documentation is available via 'make {ps|pdf}docs', |
9bb9a39c | 8 | * as Documentation/driver-api/libata.rst |
af36d7f0 JG |
9 | * |
10 | * Hardware documentation available from http://www.t13.org/ | |
1da177e4 LT |
11 | */ |
12 | ||
13 | #ifndef __LINUX_ATA_H__ | |
14 | #define __LINUX_ATA_H__ | |
15 | ||
dbc557fa | 16 | #include <linux/bits.h> |
0c659b82 | 17 | #include <linux/string.h> |
1da177e4 | 18 | #include <linux/types.h> |
93734a23 | 19 | #include <asm/byteorder.h> |
1da177e4 LT |
20 | |
21 | /* defines only for the constants which don't work well as enums */ | |
22 | #define ATA_DMA_BOUNDARY 0xffffUL | |
23 | #define ATA_DMA_MASK 0xffffffffULL | |
24 | ||
25 | enum { | |
26 | /* various global constants */ | |
27 | ATA_MAX_DEVICES = 2, /* per bus/port */ | |
28 | ATA_MAX_PRD = 256, /* we could make these 256/256 */ | |
29 | ATA_SECT_SIZE = 512, | |
18d6e9d5 | 30 | ATA_MAX_SECTORS_128 = 128, |
8b881b04 | 31 | ATA_MAX_SECTORS = 256, |
af34d637 | 32 | ATA_MAX_SECTORS_1024 = 1024, |
35303d5c | 33 | ATA_MAX_SECTORS_LBA48 = 65535,/* avoid count to be 0000h */ |
f8d8e579 | 34 | ATA_MAX_SECTORS_TAPE = 65535, |
2983860c | 35 | ATA_MAX_TRIM_RNUM = 64, /* 512-byte payload / (6-byte LBA + 2-byte range per entry) */ |
1da177e4 LT |
36 | |
37 | ATA_ID_WORDS = 256, | |
37014c64 BZ |
38 | ATA_ID_CONFIG = 0, |
39 | ATA_ID_CYLS = 1, | |
40 | ATA_ID_HEADS = 3, | |
41 | ATA_ID_SECTORS = 6, | |
a0cf733b | 42 | ATA_ID_SERNO = 10, |
37014c64 | 43 | ATA_ID_BUF_SIZE = 21, |
a0cf733b TH |
44 | ATA_ID_FW_REV = 23, |
45 | ATA_ID_PROD = 27, | |
37014c64 | 46 | ATA_ID_MAX_MULTSECT = 47, |
e8f11db9 CH |
47 | ATA_ID_DWORD_IO = 48, /* before ATA-8 */ |
48 | ATA_ID_TRUSTED = 48, /* ATA-8 and later */ | |
37014c64 | 49 | ATA_ID_CAPABILITY = 49, |
11e29e21 | 50 | ATA_ID_OLD_PIO_MODES = 51, |
37014c64 | 51 | ATA_ID_OLD_DMA_MODES = 52, |
11e29e21 | 52 | ATA_ID_FIELD_VALID = 53, |
37014c64 BZ |
53 | ATA_ID_CUR_CYLS = 54, |
54 | ATA_ID_CUR_HEADS = 55, | |
55 | ATA_ID_CUR_SECTORS = 56, | |
56 | ATA_ID_MULTSECT = 59, | |
57 | ATA_ID_LBA_CAPACITY = 60, | |
58 | ATA_ID_SWDMA_MODES = 62, | |
1da177e4 | 59 | ATA_ID_MWDMA_MODES = 63, |
11e29e21 AC |
60 | ATA_ID_PIO_MODES = 64, |
61 | ATA_ID_EIDE_DMA_MIN = 65, | |
37014c64 | 62 | ATA_ID_EIDE_DMA_TIME = 66, |
11e29e21 AC |
63 | ATA_ID_EIDE_PIO = 67, |
64 | ATA_ID_EIDE_PIO_IORDY = 68, | |
e78db4df | 65 | ATA_ID_ADDITIONAL_SUPP = 69, |
37014c64 | 66 | ATA_ID_QUEUE_DEPTH = 75, |
583661a8 SH |
67 | ATA_ID_SATA_CAPABILITY = 76, |
68 | ATA_ID_SATA_CAPABILITY_2 = 77, | |
69 | ATA_ID_FEATURE_SUPP = 78, | |
11e29e21 | 70 | ATA_ID_MAJOR_VER = 80, |
37014c64 BZ |
71 | ATA_ID_COMMAND_SET_1 = 82, |
72 | ATA_ID_COMMAND_SET_2 = 83, | |
73 | ATA_ID_CFSSE = 84, | |
74 | ATA_ID_CFS_ENABLE_1 = 85, | |
75 | ATA_ID_CFS_ENABLE_2 = 86, | |
76 | ATA_ID_CSF_DEFAULT = 87, | |
77 | ATA_ID_UDMA_MODES = 88, | |
78 | ATA_ID_HW_CONFIG = 93, | |
79 | ATA_ID_SPG = 98, | |
80 | ATA_ID_LBA_CAPACITY_2 = 100, | |
18f0f978 | 81 | ATA_ID_SECTOR_SIZE = 106, |
6b3b9d73 | 82 | ATA_ID_WWN = 108, |
295124dc | 83 | ATA_ID_LOGICAL_SECTOR_SIZE = 117, /* and 118 */ |
fe7173c2 HR |
84 | ATA_ID_COMMAND_SET_3 = 119, |
85 | ATA_ID_COMMAND_SET_4 = 120, | |
37014c64 BZ |
86 | ATA_ID_LAST_LUN = 126, |
87 | ATA_ID_DLF = 128, | |
88 | ATA_ID_CSFO = 129, | |
89 | ATA_ID_CFA_POWER = 160, | |
d42ad15b SS |
90 | ATA_ID_CFA_KEY_MGMT = 162, |
91 | ATA_ID_CFA_MODES = 163, | |
0c659b82 | 92 | ATA_ID_DATA_SET_MGMT = 169, |
7b203094 | 93 | ATA_ID_SCT_CMD_XPORT = 206, |
8bff7c6b | 94 | ATA_ID_ROT_SPEED = 217, |
1da177e4 LT |
95 | ATA_ID_PIO4 = (1 << 1), |
96 | ||
a0cf733b TH |
97 | ATA_ID_SERNO_LEN = 20, |
98 | ATA_ID_FW_REV_LEN = 8, | |
99 | ATA_ID_PROD_LEN = 40, | |
6b3b9d73 | 100 | ATA_ID_WWN_LEN = 8, |
a0cf733b | 101 | |
1da177e4 | 102 | ATA_PCI_CTL_OFS = 2, |
4099d143 BZ |
103 | |
104 | ATA_PIO0 = (1 << 0), | |
105 | ATA_PIO1 = ATA_PIO0 | (1 << 1), | |
106 | ATA_PIO2 = ATA_PIO1 | (1 << 2), | |
107 | ATA_PIO3 = ATA_PIO2 | (1 << 3), | |
108 | ATA_PIO4 = ATA_PIO3 | (1 << 4), | |
109 | ATA_PIO5 = ATA_PIO4 | (1 << 5), | |
110 | ATA_PIO6 = ATA_PIO5 | (1 << 6), | |
111 | ||
22ddbd1e EIB |
112 | ATA_PIO4_ONLY = (1 << 4), |
113 | ||
91a6d4ed BZ |
114 | ATA_SWDMA0 = (1 << 0), |
115 | ATA_SWDMA1 = ATA_SWDMA0 | (1 << 1), | |
116 | ATA_SWDMA2 = ATA_SWDMA1 | (1 << 2), | |
117 | ||
118 | ATA_SWDMA2_ONLY = (1 << 2), | |
119 | ||
120 | ATA_MWDMA0 = (1 << 0), | |
121 | ATA_MWDMA1 = ATA_MWDMA0 | (1 << 1), | |
122 | ATA_MWDMA2 = ATA_MWDMA1 | (1 << 2), | |
22ddbd1e EIB |
123 | ATA_MWDMA3 = ATA_MWDMA2 | (1 << 3), |
124 | ATA_MWDMA4 = ATA_MWDMA3 | (1 << 4), | |
91a6d4ed BZ |
125 | |
126 | ATA_MWDMA12_ONLY = (1 << 1) | (1 << 2), | |
127 | ATA_MWDMA2_ONLY = (1 << 2), | |
128 | ||
1da177e4 LT |
129 | ATA_UDMA0 = (1 << 0), |
130 | ATA_UDMA1 = ATA_UDMA0 | (1 << 1), | |
131 | ATA_UDMA2 = ATA_UDMA1 | (1 << 2), | |
132 | ATA_UDMA3 = ATA_UDMA2 | (1 << 3), | |
133 | ATA_UDMA4 = ATA_UDMA3 | (1 << 4), | |
134 | ATA_UDMA5 = ATA_UDMA4 | (1 << 5), | |
135 | ATA_UDMA6 = ATA_UDMA5 | (1 << 6), | |
136 | ATA_UDMA7 = ATA_UDMA6 | (1 << 7), | |
137 | /* ATA_UDMA7 is just for completeness... doesn't exist (yet?). */ | |
138 | ||
22ddbd1e EIB |
139 | ATA_UDMA24_ONLY = (1 << 2) | (1 << 4), |
140 | ||
1da177e4 LT |
141 | ATA_UDMA_MASK_40C = ATA_UDMA2, /* udma0-2 */ |
142 | ||
143 | /* DMA-related */ | |
144 | ATA_PRD_SZ = 8, | |
145 | ATA_PRD_TBL_SZ = (ATA_MAX_PRD * ATA_PRD_SZ), | |
146 | ATA_PRD_EOT = (1 << 31), /* end-of-table flag */ | |
147 | ||
148 | ATA_DMA_TABLE_OFS = 4, | |
149 | ATA_DMA_STATUS = 2, | |
150 | ATA_DMA_CMD = 0, | |
151 | ATA_DMA_WR = (1 << 3), | |
152 | ATA_DMA_START = (1 << 0), | |
153 | ATA_DMA_INTR = (1 << 2), | |
154 | ATA_DMA_ERR = (1 << 1), | |
155 | ATA_DMA_ACTIVE = (1 << 0), | |
156 | ||
157 | /* bits in ATA command block registers */ | |
158 | ATA_HOB = (1 << 7), /* LBA48 selector */ | |
159 | ATA_NIEN = (1 << 1), /* disable-irq flag */ | |
160 | ATA_LBA = (1 << 6), /* LBA28 selector */ | |
161 | ATA_DEV1 = (1 << 4), /* Select Device 1 (slave) */ | |
162 | ATA_DEVICE_OBS = (1 << 7) | (1 << 5), /* obs bits in dev reg */ | |
163 | ATA_DEVCTL_OBS = (1 << 3), /* obsolete bit in devctl reg */ | |
164 | ATA_BUSY = (1 << 7), /* BSY status bit */ | |
165 | ATA_DRDY = (1 << 6), /* device ready */ | |
166 | ATA_DF = (1 << 5), /* device fault */ | |
b5911620 | 167 | ATA_DSC = (1 << 4), /* drive seek complete */ |
1da177e4 | 168 | ATA_DRQ = (1 << 3), /* data request i/o */ |
b5911620 | 169 | ATA_CORR = (1 << 2), /* corrected data error */ |
27f00e53 | 170 | ATA_SENSE = (1 << 1), /* sense code available */ |
1da177e4 LT |
171 | ATA_ERR = (1 << 0), /* have an error */ |
172 | ATA_SRST = (1 << 2), /* software reset */ | |
9be1e979 | 173 | ATA_ICRC = (1 << 7), /* interface CRC error */ |
b5911620 | 174 | ATA_BBK = ATA_ICRC, /* pre-EIDE: block marked bad */ |
9be1e979 | 175 | ATA_UNC = (1 << 6), /* uncorrectable media error */ |
b5911620 | 176 | ATA_MC = (1 << 5), /* media changed */ |
9be1e979 | 177 | ATA_IDNF = (1 << 4), /* ID not found */ |
b5911620 | 178 | ATA_MCR = (1 << 3), /* media change requested */ |
1da177e4 | 179 | ATA_ABORTED = (1 << 2), /* command aborted */ |
b5911620 BZ |
180 | ATA_TRK0NF = (1 << 1), /* track 0 not found */ |
181 | ATA_AMNF = (1 << 0), /* address mark not found */ | |
182 | ATAPI_LFS = 0xF0, /* last failed sense */ | |
183 | ATAPI_EOM = ATA_TRK0NF, /* end of media */ | |
184 | ATAPI_ILI = ATA_AMNF, /* illegal length indication */ | |
185 | ATAPI_IO = (1 << 1), | |
186 | ATAPI_COD = (1 << 0), | |
1da177e4 LT |
187 | |
188 | /* ATA command block registers */ | |
189 | ATA_REG_DATA = 0x00, | |
190 | ATA_REG_ERR = 0x01, | |
191 | ATA_REG_NSECT = 0x02, | |
192 | ATA_REG_LBAL = 0x03, | |
193 | ATA_REG_LBAM = 0x04, | |
194 | ATA_REG_LBAH = 0x05, | |
195 | ATA_REG_DEVICE = 0x06, | |
196 | ATA_REG_STATUS = 0x07, | |
197 | ||
198 | ATA_REG_FEATURE = ATA_REG_ERR, /* and their aliases */ | |
199 | ATA_REG_CMD = ATA_REG_STATUS, | |
200 | ATA_REG_BYTEL = ATA_REG_LBAM, | |
201 | ATA_REG_BYTEH = ATA_REG_LBAH, | |
202 | ATA_REG_DEVSEL = ATA_REG_DEVICE, | |
203 | ATA_REG_IRQ = ATA_REG_NSECT, | |
204 | ||
205 | /* ATA device commands */ | |
ab2181cf | 206 | ATA_CMD_DEV_RESET = 0x08, /* ATAPI device reset */ |
1da177e4 | 207 | ATA_CMD_CHK_POWER = 0xE5, /* check power mode */ |
972dcafb DG |
208 | ATA_CMD_STANDBY = 0xE2, /* place in standby power mode */ |
209 | ATA_CMD_IDLE = 0xE3, /* place in idle power mode */ | |
1da177e4 | 210 | ATA_CMD_EDD = 0x90, /* execute device diagnostic */ |
6521148c | 211 | ATA_CMD_DOWNLOAD_MICRO = 0x92, |
3915c3b5 | 212 | ATA_CMD_DOWNLOAD_MICRO_DMA = 0x93, |
6521148c | 213 | ATA_CMD_NOP = 0x00, |
1da177e4 LT |
214 | ATA_CMD_FLUSH = 0xE7, |
215 | ATA_CMD_FLUSH_EXT = 0xEA, | |
216 | ATA_CMD_ID_ATA = 0xEC, | |
217 | ATA_CMD_ID_ATAPI = 0xA1, | |
6521148c | 218 | ATA_CMD_SERVICE = 0xA2, |
1da177e4 LT |
219 | ATA_CMD_READ = 0xC8, |
220 | ATA_CMD_READ_EXT = 0x25, | |
6521148c RH |
221 | ATA_CMD_READ_QUEUED = 0x26, |
222 | ATA_CMD_READ_STREAM_EXT = 0x2B, | |
223 | ATA_CMD_READ_STREAM_DMA_EXT = 0x2A, | |
1da177e4 LT |
224 | ATA_CMD_WRITE = 0xCA, |
225 | ATA_CMD_WRITE_EXT = 0x35, | |
6521148c RH |
226 | ATA_CMD_WRITE_QUEUED = 0x36, |
227 | ATA_CMD_WRITE_STREAM_EXT = 0x3B, | |
228 | ATA_CMD_WRITE_STREAM_DMA_EXT = 0x3A, | |
9a3dccc4 | 229 | ATA_CMD_WRITE_FUA_EXT = 0x3D, |
6521148c | 230 | ATA_CMD_WRITE_QUEUED_FUA_EXT = 0x3E, |
88e49034 TH |
231 | ATA_CMD_FPDMA_READ = 0x60, |
232 | ATA_CMD_FPDMA_WRITE = 0x61, | |
661ce1f0 | 233 | ATA_CMD_NCQ_NON_DATA = 0x63, |
ed36911c MC |
234 | ATA_CMD_FPDMA_SEND = 0x64, |
235 | ATA_CMD_FPDMA_RECV = 0x65, | |
1da177e4 LT |
236 | ATA_CMD_PIO_READ = 0x20, |
237 | ATA_CMD_PIO_READ_EXT = 0x24, | |
238 | ATA_CMD_PIO_WRITE = 0x30, | |
239 | ATA_CMD_PIO_WRITE_EXT = 0x34, | |
8cbd6df1 AL |
240 | ATA_CMD_READ_MULTI = 0xC4, |
241 | ATA_CMD_READ_MULTI_EXT = 0x29, | |
242 | ATA_CMD_WRITE_MULTI = 0xC5, | |
243 | ATA_CMD_WRITE_MULTI_EXT = 0x39, | |
9a3dccc4 | 244 | ATA_CMD_WRITE_MULTI_FUA_EXT = 0xCE, |
1da177e4 | 245 | ATA_CMD_SET_FEATURES = 0xEF, |
2c3d2a46 | 246 | ATA_CMD_SET_MULTI = 0xC6, |
1da177e4 LT |
247 | ATA_CMD_PACKET = 0xA0, |
248 | ATA_CMD_VERIFY = 0x40, | |
249 | ATA_CMD_VERIFY_EXT = 0x42, | |
6521148c | 250 | ATA_CMD_WRITE_UNCORR_EXT = 0x45, |
2dcb407e JG |
251 | ATA_CMD_STANDBYNOW1 = 0xE0, |
252 | ATA_CMD_IDLEIMMEDIATE = 0xE1, | |
054a5fba | 253 | ATA_CMD_SLEEP = 0xE6, |
8bf62ece | 254 | ATA_CMD_INIT_DEV_PARAMS = 0x91, |
b6782728 AC |
255 | ATA_CMD_READ_NATIVE_MAX = 0xF8, |
256 | ATA_CMD_READ_NATIVE_MAX_EXT = 0x27, | |
1e999736 AC |
257 | ATA_CMD_SET_MAX = 0xF9, |
258 | ATA_CMD_SET_MAX_EXT = 0x37, | |
6521148c RH |
259 | ATA_CMD_READ_LOG_EXT = 0x2F, |
260 | ATA_CMD_WRITE_LOG_EXT = 0x3F, | |
261 | ATA_CMD_READ_LOG_DMA_EXT = 0x47, | |
262 | ATA_CMD_WRITE_LOG_DMA_EXT = 0x57, | |
3915c3b5 | 263 | ATA_CMD_TRUSTED_NONDATA = 0x5B, |
6521148c RH |
264 | ATA_CMD_TRUSTED_RCV = 0x5C, |
265 | ATA_CMD_TRUSTED_RCV_DMA = 0x5D, | |
266 | ATA_CMD_TRUSTED_SND = 0x5E, | |
267 | ATA_CMD_TRUSTED_SND_DMA = 0x5F, | |
814600ee | 268 | ATA_CMD_PMP_READ = 0xE4, |
3915c3b5 | 269 | ATA_CMD_PMP_READ_DMA = 0xE9, |
814600ee | 270 | ATA_CMD_PMP_WRITE = 0xE8, |
3915c3b5 | 271 | ATA_CMD_PMP_WRITE_DMA = 0xEB, |
ce2e0abb | 272 | ATA_CMD_CONF_OVERLAY = 0xB1, |
6521148c RH |
273 | ATA_CMD_SEC_SET_PASS = 0xF1, |
274 | ATA_CMD_SEC_UNLOCK = 0xF2, | |
275 | ATA_CMD_SEC_ERASE_PREP = 0xF3, | |
276 | ATA_CMD_SEC_ERASE_UNIT = 0xF4, | |
ce2e0abb | 277 | ATA_CMD_SEC_FREEZE_LOCK = 0xF5, |
6521148c RH |
278 | ATA_CMD_SEC_DISABLE_PASS = 0xF6, |
279 | ATA_CMD_CONFIG_STREAM = 0x51, | |
476d9894 BZ |
280 | ATA_CMD_SMART = 0xB0, |
281 | ATA_CMD_MEDIA_LOCK = 0xDE, | |
282 | ATA_CMD_MEDIA_UNLOCK = 0xDF, | |
0c659b82 | 283 | ATA_CMD_DSM = 0x06, |
6521148c RH |
284 | ATA_CMD_CHK_MED_CRD_TYP = 0xD1, |
285 | ATA_CMD_CFA_REQ_EXT_ERR = 0x03, | |
286 | ATA_CMD_CFA_WRITE_NE = 0x38, | |
287 | ATA_CMD_CFA_TRANS_SECT = 0x87, | |
288 | ATA_CMD_CFA_ERASE = 0xC0, | |
289 | ATA_CMD_CFA_WRITE_MULT_NE = 0xCD, | |
3915c3b5 RH |
290 | ATA_CMD_REQ_SENSE_DATA = 0x0B, |
291 | ATA_CMD_SANITIZE_DEVICE = 0xB4, | |
28a3fc22 | 292 | ATA_CMD_ZAC_MGMT_IN = 0x4A, |
27708a95 | 293 | ATA_CMD_ZAC_MGMT_OUT = 0x9F, |
3915c3b5 | 294 | |
476d9894 BZ |
295 | /* marked obsolete in the ATA/ATAPI-7 spec */ |
296 | ATA_CMD_RESTORE = 0x10, | |
88e49034 | 297 | |
5c65d8bb HR |
298 | /* Subcmds for ATA_CMD_FPDMA_RECV */ |
299 | ATA_SUBCMD_FPDMA_RECV_RD_LOG_DMA_EXT = 0x01, | |
28a3fc22 | 300 | ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN = 0x02, |
5c65d8bb | 301 | |
ed36911c MC |
302 | /* Subcmds for ATA_CMD_FPDMA_SEND */ |
303 | ATA_SUBCMD_FPDMA_SEND_DSM = 0x00, | |
304 | ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT = 0x02, | |
305 | ||
a5703849 HR |
306 | /* Subcmds for ATA_CMD_NCQ_NON_DATA */ |
307 | ATA_SUBCMD_NCQ_NON_DATA_ABORT_QUEUE = 0x00, | |
308 | ATA_SUBCMD_NCQ_NON_DATA_SET_FEATURES = 0x05, | |
309 | ATA_SUBCMD_NCQ_NON_DATA_ZERO_EXT = 0x06, | |
284b3b77 | 310 | ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT = 0x07, |
a5703849 | 311 | |
28a3fc22 HR |
312 | /* Subcmds for ATA_CMD_ZAC_MGMT_IN */ |
313 | ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES = 0x00, | |
314 | ||
27708a95 HR |
315 | /* Subcmds for ATA_CMD_ZAC_MGMT_OUT */ |
316 | ATA_SUBCMD_ZAC_MGMT_OUT_CLOSE_ZONE = 0x01, | |
317 | ATA_SUBCMD_ZAC_MGMT_OUT_FINISH_ZONE = 0x02, | |
318 | ATA_SUBCMD_ZAC_MGMT_OUT_OPEN_ZONE = 0x03, | |
319 | ATA_SUBCMD_ZAC_MGMT_OUT_RESET_WRITE_POINTER = 0x04, | |
320 | ||
88e49034 | 321 | /* READ_LOG_EXT pages */ |
fe5af0cc | 322 | ATA_LOG_DIRECTORY = 0x0, |
88e49034 | 323 | ATA_LOG_SATA_NCQ = 0x10, |
1d51d5f3 CH |
324 | ATA_LOG_NCQ_NON_DATA = 0x12, |
325 | ATA_LOG_NCQ_SEND_RECV = 0x13, | |
326 | ATA_LOG_IDENTIFY_DEVICE = 0x30, | |
327 | ||
328 | /* Identify device log pages: */ | |
818831c8 | 329 | ATA_LOG_SECURITY = 0x06, |
65fe1f0f | 330 | ATA_LOG_SATA_SETTINGS = 0x08, |
6d1003ae | 331 | ATA_LOG_ZONED_INFORMATION = 0x09, |
1d51d5f3 CH |
332 | |
333 | /* Identify device SATA settings log:*/ | |
803739d2 SH |
334 | ATA_LOG_DEVSLP_OFFSET = 0x30, |
335 | ATA_LOG_DEVSLP_SIZE = 0x08, | |
336 | ATA_LOG_DEVSLP_MDAT = 0x00, | |
65fe1f0f | 337 | ATA_LOG_DEVSLP_MDAT_MASK = 0x1F, |
803739d2 SH |
338 | ATA_LOG_DEVSLP_DETO = 0x01, |
339 | ATA_LOG_DEVSLP_VALID = 0x07, | |
65fe1f0f | 340 | ATA_LOG_DEVSLP_VALID_MASK = 0x80, |
8e061784 | 341 | ATA_LOG_NCQ_PRIO_OFFSET = 0x09, |
1da177e4 | 342 | |
ed36911c MC |
343 | /* NCQ send and receive log */ |
344 | ATA_LOG_NCQ_SEND_RECV_SUBCMDS_OFFSET = 0x00, | |
345 | ATA_LOG_NCQ_SEND_RECV_SUBCMDS_DSM = (1 << 0), | |
346 | ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET = 0x04, | |
347 | ATA_LOG_NCQ_SEND_RECV_DSM_TRIM = (1 << 0), | |
348 | ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET = 0x08, | |
5c65d8bb | 349 | ATA_LOG_NCQ_SEND_RECV_RD_LOG_SUPPORTED = (1 << 0), |
ed36911c | 350 | ATA_LOG_NCQ_SEND_RECV_WR_LOG_OFFSET = 0x0C, |
5c65d8bb | 351 | ATA_LOG_NCQ_SEND_RECV_WR_LOG_SUPPORTED = (1 << 0), |
28a3fc22 HR |
352 | ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OFFSET = 0x10, |
353 | ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OUT_SUPPORTED = (1 << 0), | |
354 | ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_IN_SUPPORTED = (1 << 1), | |
355 | ATA_LOG_NCQ_SEND_RECV_SIZE = 0x14, | |
ed36911c | 356 | |
a5703849 HR |
357 | /* NCQ Non-Data log */ |
358 | ATA_LOG_NCQ_NON_DATA_SUBCMDS_OFFSET = 0x00, | |
359 | ATA_LOG_NCQ_NON_DATA_ABORT_OFFSET = 0x00, | |
360 | ATA_LOG_NCQ_NON_DATA_ABORT_NCQ = (1 << 0), | |
361 | ATA_LOG_NCQ_NON_DATA_ABORT_ALL = (1 << 1), | |
362 | ATA_LOG_NCQ_NON_DATA_ABORT_STREAMING = (1 << 2), | |
363 | ATA_LOG_NCQ_NON_DATA_ABORT_NON_STREAMING = (1 << 3), | |
364 | ATA_LOG_NCQ_NON_DATA_ABORT_SELECTED = (1 << 4), | |
365 | ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OFFSET = 0x1C, | |
366 | ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OUT = (1 << 0), | |
367 | ATA_LOG_NCQ_NON_DATA_SIZE = 0x40, | |
ed36911c | 368 | |
5a5dbd18 ML |
369 | /* READ/WRITE LONG (obsolete) */ |
370 | ATA_CMD_READ_LONG = 0x22, | |
371 | ATA_CMD_READ_LONG_ONCE = 0x23, | |
372 | ATA_CMD_WRITE_LONG = 0x32, | |
373 | ATA_CMD_WRITE_LONG_ONCE = 0x33, | |
374 | ||
1da177e4 LT |
375 | /* SETFEATURES stuff */ |
376 | SETFEATURES_XFER = 0x03, | |
377 | XFER_UDMA_7 = 0x47, | |
378 | XFER_UDMA_6 = 0x46, | |
379 | XFER_UDMA_5 = 0x45, | |
380 | XFER_UDMA_4 = 0x44, | |
381 | XFER_UDMA_3 = 0x43, | |
382 | XFER_UDMA_2 = 0x42, | |
383 | XFER_UDMA_1 = 0x41, | |
384 | XFER_UDMA_0 = 0x40, | |
b352e57d AC |
385 | XFER_MW_DMA_4 = 0x24, /* CFA only */ |
386 | XFER_MW_DMA_3 = 0x23, /* CFA only */ | |
1da177e4 LT |
387 | XFER_MW_DMA_2 = 0x22, |
388 | XFER_MW_DMA_1 = 0x21, | |
389 | XFER_MW_DMA_0 = 0x20, | |
b4b52db7 AC |
390 | XFER_SW_DMA_2 = 0x12, |
391 | XFER_SW_DMA_1 = 0x11, | |
392 | XFER_SW_DMA_0 = 0x10, | |
b352e57d AC |
393 | XFER_PIO_6 = 0x0E, /* CFA only */ |
394 | XFER_PIO_5 = 0x0D, /* CFA only */ | |
1da177e4 LT |
395 | XFER_PIO_4 = 0x0C, |
396 | XFER_PIO_3 = 0x0B, | |
397 | XFER_PIO_2 = 0x0A, | |
398 | XFER_PIO_1 = 0x09, | |
399 | XFER_PIO_0 = 0x08, | |
1da177e4 LT |
400 | XFER_PIO_SLOW = 0x00, |
401 | ||
3057ac3c | 402 | SETFEATURES_WC_ON = 0x02, /* Enable write cache */ |
403 | SETFEATURES_WC_OFF = 0x82, /* Disable write cache */ | |
404 | ||
0c12735e TY |
405 | SETFEATURES_RA_ON = 0xaa, /* Enable read look-ahead */ |
406 | SETFEATURES_RA_OFF = 0x55, /* Disable read look-ahead */ | |
407 | ||
476d9894 BZ |
408 | /* Enable/Disable Automatic Acoustic Management */ |
409 | SETFEATURES_AAM_ON = 0x42, | |
410 | SETFEATURES_AAM_OFF = 0xC2, | |
411 | ||
974e0a45 DLM |
412 | SETFEATURES_SPINUP = 0x07, /* Spin-up drive */ |
413 | SETFEATURES_SPINUP_TIMEOUT = 30000, /* 30s timeout for drive spin-up from PUIS */ | |
169439c2 | 414 | |
9f45cbd3 KCA |
415 | SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */ |
416 | SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */ | |
417 | ||
418 | /* SETFEATURE Sector counts for SATA features */ | |
fa5b561c | 419 | SATA_FPDMA_OFFSET = 0x01, /* FPDMA non-zero buffer offsets */ |
f1bce7f8 TH |
420 | SATA_FPDMA_AA = 0x02, /* FPDMA Setup FIS Auto-Activate */ |
421 | SATA_DIPM = 0x03, /* Device Initiated Power Management */ | |
fa5b561c | 422 | SATA_FPDMA_IN_ORDER = 0x04, /* FPDMA in-order data delivery */ |
f1bce7f8 | 423 | SATA_AN = 0x05, /* Asynchronous Notification */ |
fa5b561c | 424 | SATA_SSP = 0x06, /* Software Settings Preservation */ |
65fe1f0f | 425 | SATA_DEVSLP = 0x09, /* Device Sleep */ |
9f45cbd3 | 426 | |
e87fd28c HR |
427 | SETFEATURE_SENSE_DATA = 0xC3, /* Sense Data Reporting feature */ |
428 | ||
ce2e0abb TH |
429 | /* feature values for SET_MAX */ |
430 | ATA_SET_MAX_ADDR = 0x00, | |
431 | ATA_SET_MAX_PASSWD = 0x01, | |
432 | ATA_SET_MAX_LOCK = 0x02, | |
433 | ATA_SET_MAX_UNLOCK = 0x03, | |
434 | ATA_SET_MAX_FREEZE_LOCK = 0x04, | |
d5c15c2c | 435 | ATA_SET_MAX_PASSWD_DMA = 0x05, |
436 | ATA_SET_MAX_UNLOCK_DMA = 0x06, | |
ce2e0abb TH |
437 | |
438 | /* feature values for DEVICE CONFIGURATION OVERLAY */ | |
439 | ATA_DCO_RESTORE = 0xC0, | |
440 | ATA_DCO_FREEZE_LOCK = 0xC1, | |
441 | ATA_DCO_IDENTIFY = 0xC2, | |
442 | ATA_DCO_SET = 0xC3, | |
443 | ||
476d9894 BZ |
444 | /* feature values for SMART */ |
445 | ATA_SMART_ENABLE = 0xD8, | |
446 | ATA_SMART_READ_VALUES = 0xD0, | |
447 | ATA_SMART_READ_THRESHOLDS = 0xD1, | |
448 | ||
0c659b82 MW |
449 | /* feature values for Data Set Management */ |
450 | ATA_DSM_TRIM = 0x01, | |
451 | ||
476d9894 BZ |
452 | /* password used in LBA Mid / LBA High for executing SMART commands */ |
453 | ATA_SMART_LBAM_PASS = 0x4F, | |
454 | ATA_SMART_LBAH_PASS = 0xC2, | |
455 | ||
1da177e4 LT |
456 | /* ATAPI stuff */ |
457 | ATAPI_PKT_DMA = (1 << 0), | |
458 | ATAPI_DMADIR = (1 << 2), /* ATAPI data dir: | |
459 | 0=to device, 1=to host */ | |
460 | ATAPI_CDB_LEN = 16, | |
461 | ||
814600ee TH |
462 | /* PMP stuff */ |
463 | SATA_PMP_MAX_PORTS = 15, | |
464 | SATA_PMP_CTRL_PORT = 15, | |
465 | ||
466 | SATA_PMP_GSCR_DWORDS = 128, | |
467 | SATA_PMP_GSCR_PROD_ID = 0, | |
468 | SATA_PMP_GSCR_REV = 1, | |
469 | SATA_PMP_GSCR_PORT_INFO = 2, | |
470 | SATA_PMP_GSCR_ERROR = 32, | |
471 | SATA_PMP_GSCR_ERROR_EN = 33, | |
472 | SATA_PMP_GSCR_FEAT = 64, | |
473 | SATA_PMP_GSCR_FEAT_EN = 96, | |
474 | ||
475 | SATA_PMP_PSCR_STATUS = 0, | |
476 | SATA_PMP_PSCR_ERROR = 1, | |
477 | SATA_PMP_PSCR_CONTROL = 2, | |
478 | ||
479 | SATA_PMP_FEAT_BIST = (1 << 0), | |
480 | SATA_PMP_FEAT_PMREQ = (1 << 1), | |
481 | SATA_PMP_FEAT_DYNSSC = (1 << 2), | |
482 | SATA_PMP_FEAT_NOTIFY = (1 << 3), | |
483 | ||
1da177e4 LT |
484 | /* cable types */ |
485 | ATA_CBL_NONE = 0, | |
486 | ATA_CBL_PATA40 = 1, | |
487 | ATA_CBL_PATA80 = 2, | |
c88f90c3 TH |
488 | ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */ |
489 | ATA_CBL_PATA_UNK = 4, /* don't know, maybe 80c? */ | |
490 | ATA_CBL_PATA_IGN = 5, /* don't know, ignore cable handling */ | |
491 | ATA_CBL_SATA = 6, | |
1da177e4 LT |
492 | |
493 | /* SATA Status and Control Registers */ | |
494 | SCR_STATUS = 0, | |
495 | SCR_ERROR = 1, | |
496 | SCR_CONTROL = 2, | |
497 | SCR_ACTIVE = 3, | |
498 | SCR_NOTIFICATION = 4, | |
499 | ||
9be1e979 TH |
500 | /* SError bits */ |
501 | SERR_DATA_RECOVERED = (1 << 0), /* recovered data error */ | |
502 | SERR_COMM_RECOVERED = (1 << 1), /* recovered comm failure */ | |
503 | SERR_DATA = (1 << 8), /* unrecovered data error */ | |
504 | SERR_PERSISTENT = (1 << 9), /* persistent data/comm error */ | |
505 | SERR_PROTOCOL = (1 << 10), /* protocol violation */ | |
506 | SERR_INTERNAL = (1 << 11), /* host internal error */ | |
507 | SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */ | |
1333e194 RH |
508 | SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */ |
509 | SERR_COMM_WAKE = (1 << 18), /* Comm wake */ | |
510 | SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */ | |
511 | SERR_DISPARITY = (1 << 20), /* Disparity */ | |
512 | SERR_CRC = (1 << 21), /* CRC error */ | |
513 | SERR_HANDSHAKE = (1 << 22), /* Handshake error */ | |
514 | SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */ | |
515 | SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */ | |
516 | SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */ | |
9be1e979 | 517 | SERR_DEV_XCHG = (1 << 26), /* device exchanged */ |
1da177e4 LT |
518 | }; |
519 | ||
37f92d77 CH |
520 | enum ata_prot_flags { |
521 | /* protocol flags */ | |
522 | ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */ | |
523 | ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */ | |
524 | ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */ | |
525 | ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */ | |
526 | ||
527 | /* taskfile protocols */ | |
528 | ATA_PROT_UNKNOWN = (u8)-1, | |
529 | ATA_PROT_NODATA = 0, | |
530 | ATA_PROT_PIO = ATA_PROT_FLAG_PIO, | |
531 | ATA_PROT_DMA = ATA_PROT_FLAG_DMA, | |
532 | ATA_PROT_NCQ_NODATA = ATA_PROT_FLAG_NCQ, | |
533 | ATA_PROT_NCQ = ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ, | |
534 | ATAPI_PROT_NODATA = ATA_PROT_FLAG_ATAPI, | |
535 | ATAPI_PROT_PIO = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO, | |
536 | ATAPI_PROT_DMA = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA, | |
1da177e4 LT |
537 | }; |
538 | ||
539 | enum ata_ioctls { | |
287e6611 AB |
540 | ATA_IOC_GET_IO32 = 0x309, /* HDIO_GET_32BIT */ |
541 | ATA_IOC_SET_IO32 = 0x324, /* HDIO_SET_32BIT */ | |
1da177e4 LT |
542 | }; |
543 | ||
544 | /* core structures */ | |
545 | ||
f60d7011 | 546 | struct ata_bmdma_prd { |
4ca4e439 AV |
547 | __le32 addr; |
548 | __le32 flags_len; | |
1da177e4 LT |
549 | }; |
550 | ||
405e66b3 TH |
551 | /* |
552 | * id tests | |
553 | */ | |
37014c64 BZ |
554 | #define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0) |
555 | #define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9)) | |
556 | #define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (1 << 8)) | |
583661a8 | 557 | #define ata_id_has_ncq(id) ((id)[ATA_ID_SATA_CAPABILITY] & (1 << 8)) |
37014c64 | 558 | #define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1) |
0628ee7c | 559 | #define ata_id_removable(id) ((id)[ATA_ID_CONFIG] & (1 << 7)) |
854c73a2 | 560 | #define ata_id_has_atapi_AN(id) \ |
583661a8 SH |
561 | ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ |
562 | ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ | |
563 | ((id)[ATA_ID_FEATURE_SUPP] & (1 << 5))) | |
388539f3 | 564 | #define ata_id_has_fpdma_aa(id) \ |
583661a8 SH |
565 | ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ |
566 | ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ | |
567 | ((id)[ATA_ID_FEATURE_SUPP] & (1 << 2))) | |
37014c64 BZ |
568 | #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10)) |
569 | #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11)) | |
1da177e4 LT |
570 | #define ata_id_u32(id,n) \ |
571 | (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)])) | |
572 | #define ata_id_u64(id,n) \ | |
573 | ( ((u64) (id)[(n) + 3] << 48) | \ | |
574 | ((u64) (id)[(n) + 2] << 32) | \ | |
575 | ((u64) (id)[(n) + 1] << 16) | \ | |
576 | ((u64) (id)[(n) + 0]) ) | |
577 | ||
37014c64 | 578 | #define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20) |
583661a8 | 579 | #define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4)) |
65fe1f0f | 580 | #define ata_id_has_devslp(id) ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8)) |
5b01e4b9 HR |
581 | #define ata_id_has_ncq_autosense(id) \ |
582 | ((id)[ATA_ID_FEATURE_SUPP] & (1 << 7)) | |
312f7da2 | 583 | |
ca77329f KCA |
584 | static inline bool ata_id_has_hipm(const u16 *id) |
585 | { | |
583661a8 | 586 | u16 val = id[ATA_ID_SATA_CAPABILITY]; |
ca77329f KCA |
587 | |
588 | if (val == 0 || val == 0xffff) | |
589 | return false; | |
590 | ||
591 | return val & (1 << 9); | |
592 | } | |
593 | ||
594 | static inline bool ata_id_has_dipm(const u16 *id) | |
595 | { | |
583661a8 | 596 | u16 val = id[ATA_ID_FEATURE_SUPP]; |
ca77329f KCA |
597 | |
598 | if (val == 0 || val == 0xffff) | |
599 | return false; | |
600 | ||
601 | return val & (1 << 3); | |
602 | } | |
603 | ||
ae8d4ee7 | 604 | |
4dce8ba9 | 605 | static inline bool ata_id_has_fua(const u16 *id) |
c7293870 | 606 | { |
37014c64 | 607 | if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000) |
4dce8ba9 | 608 | return false; |
37014c64 | 609 | return id[ATA_ID_CFSSE] & (1 << 6); |
c7293870 AC |
610 | } |
611 | ||
4dce8ba9 | 612 | static inline bool ata_id_has_flush(const u16 *id) |
c7293870 | 613 | { |
37014c64 | 614 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
4dce8ba9 | 615 | return false; |
37014c64 | 616 | return id[ATA_ID_COMMAND_SET_2] & (1 << 12); |
c7293870 AC |
617 | } |
618 | ||
4dce8ba9 | 619 | static inline bool ata_id_flush_enabled(const u16 *id) |
4b58f17d BZ |
620 | { |
621 | if (ata_id_has_flush(id) == 0) | |
4dce8ba9 | 622 | return false; |
4b58f17d | 623 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
4dce8ba9 | 624 | return false; |
4b58f17d BZ |
625 | return id[ATA_ID_CFS_ENABLE_2] & (1 << 12); |
626 | } | |
627 | ||
4dce8ba9 | 628 | static inline bool ata_id_has_flush_ext(const u16 *id) |
c7293870 | 629 | { |
37014c64 | 630 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
4dce8ba9 | 631 | return false; |
37014c64 | 632 | return id[ATA_ID_COMMAND_SET_2] & (1 << 13); |
c7293870 AC |
633 | } |
634 | ||
4dce8ba9 | 635 | static inline bool ata_id_flush_ext_enabled(const u16 *id) |
ff2779b5 BZ |
636 | { |
637 | if (ata_id_has_flush_ext(id) == 0) | |
4dce8ba9 | 638 | return false; |
ff2779b5 | 639 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
4dce8ba9 | 640 | return false; |
ff2779b5 BZ |
641 | /* |
642 | * some Maxtor disks have bit 13 defined incorrectly | |
643 | * so check bit 10 too | |
644 | */ | |
645 | return (id[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400; | |
646 | } | |
647 | ||
295124dc | 648 | static inline u32 ata_id_logical_sector_size(const u16 *id) |
18f0f978 | 649 | { |
295124dc GG |
650 | /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. |
651 | * IDENTIFY DEVICE data, word 117-118. | |
652 | * 0xd000 ignores bit 13 (logical:physical > 1) | |
653 | */ | |
654 | if ((id[ATA_ID_SECTOR_SIZE] & 0xd000) == 0x5000) | |
655 | return (((id[ATA_ID_LOGICAL_SECTOR_SIZE+1] << 16) | |
656 | + id[ATA_ID_LOGICAL_SECTOR_SIZE]) * sizeof(u16)) ; | |
657 | return ATA_SECT_SIZE; | |
658 | } | |
659 | ||
660 | static inline u8 ata_id_log2_per_physical_sector(const u16 *id) | |
661 | { | |
662 | /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. | |
663 | * IDENTIFY DEVICE data, word 106. | |
664 | * 0xe000 ignores bit 12 (logical sector > 512 bytes) | |
665 | */ | |
666 | if ((id[ATA_ID_SECTOR_SIZE] & 0xe000) == 0x6000) | |
667 | return (id[ATA_ID_SECTOR_SIZE] & 0xf); | |
668 | return 0; | |
18f0f978 CH |
669 | } |
670 | ||
295124dc GG |
671 | /* Offset of logical sectors relative to physical sectors. |
672 | * | |
673 | * If device has more than one logical sector per physical sector | |
674 | * (aka 512 byte emulation), vendors might offset the "sector 0" address | |
675 | * so sector 63 is "naturally aligned" - e.g. FAT partition table. | |
676 | * This avoids Read/Mod/Write penalties when using FAT partition table | |
677 | * and updating "well aligned" (FS perspective) physical sectors on every | |
678 | * transaction. | |
679 | */ | |
680 | static inline u16 ata_id_logical_sector_offset(const u16 *id, | |
681 | u8 log2_per_phys) | |
18f0f978 | 682 | { |
295124dc GG |
683 | u16 word_209 = id[209]; |
684 | ||
685 | if ((log2_per_phys > 1) && (word_209 & 0xc000) == 0x4000) { | |
686 | u16 first = word_209 & 0x3fff; | |
687 | if (first > 0) | |
688 | return (1 << log2_per_phys) - first; | |
689 | } | |
690 | return 0; | |
18f0f978 CH |
691 | } |
692 | ||
4dce8ba9 | 693 | static inline bool ata_id_has_lba48(const u16 *id) |
c7293870 | 694 | { |
37014c64 | 695 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
4dce8ba9 | 696 | return false; |
37014c64 | 697 | if (!ata_id_u64(id, ATA_ID_LBA_CAPACITY_2)) |
4dce8ba9 | 698 | return false; |
37014c64 | 699 | return id[ATA_ID_COMMAND_SET_2] & (1 << 10); |
c7293870 AC |
700 | } |
701 | ||
4dce8ba9 | 702 | static inline bool ata_id_lba48_enabled(const u16 *id) |
942dcd85 BZ |
703 | { |
704 | if (ata_id_has_lba48(id) == 0) | |
4dce8ba9 | 705 | return false; |
942dcd85 | 706 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
4dce8ba9 | 707 | return false; |
942dcd85 BZ |
708 | return id[ATA_ID_CFS_ENABLE_2] & (1 << 10); |
709 | } | |
710 | ||
4dce8ba9 | 711 | static inline bool ata_id_hpa_enabled(const u16 *id) |
c7293870 AC |
712 | { |
713 | /* Yes children, word 83 valid bits cover word 82 data */ | |
37014c64 | 714 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
4dce8ba9 | 715 | return false; |
c7293870 | 716 | /* And 87 covers 85-87 */ |
37014c64 | 717 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
4dce8ba9 | 718 | return false; |
c7293870 | 719 | /* Check command sets enabled as well as supported */ |
37014c64 | 720 | if ((id[ATA_ID_CFS_ENABLE_1] & (1 << 10)) == 0) |
4dce8ba9 | 721 | return false; |
37014c64 | 722 | return id[ATA_ID_COMMAND_SET_1] & (1 << 10); |
c7293870 AC |
723 | } |
724 | ||
4dce8ba9 | 725 | static inline bool ata_id_has_wcache(const u16 *id) |
c7293870 AC |
726 | { |
727 | /* Yes children, word 83 valid bits cover word 82 data */ | |
37014c64 | 728 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
4dce8ba9 | 729 | return false; |
37014c64 | 730 | return id[ATA_ID_COMMAND_SET_1] & (1 << 5); |
c7293870 AC |
731 | } |
732 | ||
4dce8ba9 | 733 | static inline bool ata_id_has_pm(const u16 *id) |
c7293870 | 734 | { |
37014c64 | 735 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
4dce8ba9 | 736 | return false; |
37014c64 | 737 | return id[ATA_ID_COMMAND_SET_1] & (1 << 3); |
c7293870 AC |
738 | } |
739 | ||
4dce8ba9 | 740 | static inline bool ata_id_rahead_enabled(const u16 *id) |
c7293870 | 741 | { |
37014c64 | 742 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
4dce8ba9 | 743 | return false; |
37014c64 | 744 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 6); |
c7293870 AC |
745 | } |
746 | ||
4dce8ba9 | 747 | static inline bool ata_id_wcache_enabled(const u16 *id) |
c7293870 | 748 | { |
37014c64 | 749 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
4dce8ba9 | 750 | return false; |
37014c64 | 751 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 5); |
c7293870 AC |
752 | } |
753 | ||
9faa6438 HR |
754 | static inline bool ata_id_has_read_log_dma_ext(const u16 *id) |
755 | { | |
406c057c | 756 | /* Word 86 must have bit 15 set */ |
9faa6438 HR |
757 | if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) |
758 | return false; | |
406c057c MP |
759 | |
760 | /* READ LOG DMA EXT support can be signaled either from word 119 | |
761 | * or from word 120. The format is the same for both words: Bit | |
762 | * 15 must be cleared, bit 14 set and bit 3 set. | |
763 | */ | |
764 | if ((id[ATA_ID_COMMAND_SET_3] & 0xC008) == 0x4008 || | |
765 | (id[ATA_ID_COMMAND_SET_4] & 0xC008) == 0x4008) | |
766 | return true; | |
767 | ||
768 | return false; | |
9faa6438 HR |
769 | } |
770 | ||
e87fd28c HR |
771 | static inline bool ata_id_has_sense_reporting(const u16 *id) |
772 | { | |
773 | if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) | |
774 | return false; | |
775 | return id[ATA_ID_COMMAND_SET_3] & (1 << 6); | |
776 | } | |
777 | ||
778 | static inline bool ata_id_sense_reporting_enabled(const u16 *id) | |
779 | { | |
780 | if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) | |
781 | return false; | |
782 | return id[ATA_ID_COMMAND_SET_4] & (1 << 6); | |
783 | } | |
784 | ||
7b203094 ST |
785 | /** |
786 | * | |
787 | * Word: 206 - SCT Command Transport | |
788 | * 15:12 - Vendor Specific | |
789 | * 11:6 - Reserved | |
790 | * 5 - SCT Command Transport Data Tables supported | |
791 | * 4 - SCT Command Transport Features Control supported | |
792 | * 3 - SCT Command Transport Error Recovery Control supported | |
793 | * 2 - SCT Command Transport Write Same supported | |
794 | * 1 - SCT Command Transport Long Sector Access supported | |
795 | * 0 - SCT Command Transport supported | |
796 | */ | |
797 | static inline bool ata_id_sct_data_tables(const u16 *id) | |
798 | { | |
799 | return id[ATA_ID_SCT_CMD_XPORT] & (1 << 5) ? true : false; | |
800 | } | |
801 | ||
802 | static inline bool ata_id_sct_features_ctrl(const u16 *id) | |
803 | { | |
804 | return id[ATA_ID_SCT_CMD_XPORT] & (1 << 4) ? true : false; | |
805 | } | |
806 | ||
807 | static inline bool ata_id_sct_error_recovery_ctrl(const u16 *id) | |
808 | { | |
809 | return id[ATA_ID_SCT_CMD_XPORT] & (1 << 3) ? true : false; | |
810 | } | |
811 | ||
7b203094 ST |
812 | static inline bool ata_id_sct_long_sector_access(const u16 *id) |
813 | { | |
814 | return id[ATA_ID_SCT_CMD_XPORT] & (1 << 1) ? true : false; | |
815 | } | |
816 | ||
817 | static inline bool ata_id_sct_supported(const u16 *id) | |
818 | { | |
819 | return id[ATA_ID_SCT_CMD_XPORT] & (1 << 0) ? true : false; | |
820 | } | |
821 | ||
c7293870 AC |
822 | /** |
823 | * ata_id_major_version - get ATA level of drive | |
824 | * @id: Identify data | |
825 | * | |
826 | * Caveats: | |
827 | * ATA-1 considers identify optional | |
828 | * ATA-2 introduces mandatory identify | |
829 | * ATA-3 introduces word 80 and accurate reporting | |
830 | * | |
831 | * The practical impact of this is that ata_id_major_version cannot | |
2dcb407e | 832 | * reliably report on drives below ATA3. |
c7293870 AC |
833 | */ |
834 | ||
3d2ca910 TH |
835 | static inline unsigned int ata_id_major_version(const u16 *id) |
836 | { | |
837 | unsigned int mver; | |
838 | ||
b352e57d AC |
839 | if (id[ATA_ID_MAJOR_VER] == 0xFFFF) |
840 | return 0; | |
841 | ||
3d2ca910 TH |
842 | for (mver = 14; mver >= 1; mver--) |
843 | if (id[ATA_ID_MAJOR_VER] & (1 << mver)) | |
844 | break; | |
845 | return mver; | |
846 | } | |
847 | ||
4dce8ba9 | 848 | static inline bool ata_id_is_sata(const u16 *id) |
32d90911 | 849 | { |
367d7e78 BZ |
850 | /* |
851 | * See if word 93 is 0 AND drive is at least ATA-5 compatible | |
852 | * verifying that word 80 by casting it to a signed type -- | |
853 | * this trick allows us to filter out the reserved values of | |
854 | * 0x0000 and 0xffff along with the earlier ATA revisions... | |
855 | */ | |
856 | if (id[ATA_ID_HW_CONFIG] == 0 && (short)id[ATA_ID_MAJOR_VER] >= 0x0020) | |
4dce8ba9 HR |
857 | return true; |
858 | return false; | |
32d90911 TH |
859 | } |
860 | ||
4dce8ba9 | 861 | static inline bool ata_id_has_tpm(const u16 *id) |
ae8d4ee7 AC |
862 | { |
863 | /* The TPM bits are only valid on ATA8 */ | |
864 | if (ata_id_major_version(id) < 8) | |
4dce8ba9 | 865 | return false; |
ae8d4ee7 | 866 | if ((id[48] & 0xC000) != 0x4000) |
4dce8ba9 | 867 | return false; |
ae8d4ee7 AC |
868 | return id[48] & (1 << 0); |
869 | } | |
870 | ||
4dce8ba9 | 871 | static inline bool ata_id_has_dword_io(const u16 *id) |
ae8d4ee7 AC |
872 | { |
873 | /* ATA 8 reuses this flag for "trusted" computing */ | |
874 | if (ata_id_major_version(id) > 7) | |
4dce8ba9 HR |
875 | return false; |
876 | return id[ATA_ID_DWORD_IO] & (1 << 0); | |
ae8d4ee7 AC |
877 | } |
878 | ||
e8f11db9 CH |
879 | static inline bool ata_id_has_trusted(const u16 *id) |
880 | { | |
881 | if (ata_id_major_version(id) <= 7) | |
882 | return false; | |
883 | return id[ATA_ID_TRUSTED] & (1 << 0); | |
884 | } | |
885 | ||
4dce8ba9 | 886 | static inline bool ata_id_has_unload(const u16 *id) |
ea6ce53c EO |
887 | { |
888 | if (ata_id_major_version(id) >= 7 && | |
889 | (id[ATA_ID_CFSSE] & 0xC000) == 0x4000 && | |
890 | id[ATA_ID_CFSSE] & (1 << 13)) | |
4dce8ba9 HR |
891 | return true; |
892 | return false; | |
ea6ce53c EO |
893 | } |
894 | ||
6b3b9d73 HR |
895 | static inline bool ata_id_has_wwn(const u16 *id) |
896 | { | |
897 | return (id[ATA_ID_CSF_DEFAULT] & 0xC100) == 0x4100; | |
898 | } | |
899 | ||
4bca3286 MP |
900 | static inline int ata_id_form_factor(const u16 *id) |
901 | { | |
902 | u16 val = id[168]; | |
903 | ||
904 | if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) | |
905 | return 0; | |
906 | ||
907 | val &= 0xf; | |
908 | ||
909 | if (val > 5) | |
910 | return 0; | |
911 | ||
912 | return val; | |
913 | } | |
914 | ||
915 | static inline int ata_id_rotation_rate(const u16 *id) | |
916 | { | |
917 | u16 val = id[217]; | |
918 | ||
919 | if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) | |
920 | return 0; | |
921 | ||
922 | if (val > 1 && val < 0x401) | |
923 | return 0; | |
924 | ||
925 | return val; | |
926 | } | |
927 | ||
ed36911c MC |
928 | static inline bool ata_id_has_ncq_send_and_recv(const u16 *id) |
929 | { | |
930 | return id[ATA_ID_SATA_CAPABILITY_2] & BIT(6); | |
931 | } | |
932 | ||
284b3b77 HR |
933 | static inline bool ata_id_has_ncq_non_data(const u16 *id) |
934 | { | |
935 | return id[ATA_ID_SATA_CAPABILITY_2] & BIT(5); | |
936 | } | |
937 | ||
8e061784 AM |
938 | static inline bool ata_id_has_ncq_prio(const u16 *id) |
939 | { | |
940 | return id[ATA_ID_SATA_CAPABILITY] & BIT(12); | |
941 | } | |
942 | ||
4dce8ba9 | 943 | static inline bool ata_id_has_trim(const u16 *id) |
0c659b82 MW |
944 | { |
945 | if (ata_id_major_version(id) >= 7 && | |
946 | (id[ATA_ID_DATA_SET_MGMT] & 1)) | |
4dce8ba9 HR |
947 | return true; |
948 | return false; | |
0c659b82 MW |
949 | } |
950 | ||
4dce8ba9 | 951 | static inline bool ata_id_has_zero_after_trim(const u16 *id) |
e78db4df MP |
952 | { |
953 | /* DSM supported, deterministic read, and read zero after trim set */ | |
954 | if (ata_id_has_trim(id) && | |
955 | (id[ATA_ID_ADDITIONAL_SUPP] & 0x4020) == 0x4020) | |
4dce8ba9 | 956 | return true; |
e78db4df | 957 | |
4dce8ba9 | 958 | return false; |
e78db4df MP |
959 | } |
960 | ||
4dce8ba9 | 961 | static inline bool ata_id_current_chs_valid(const u16 *id) |
8bf62ece | 962 | { |
9bec2e38 JG |
963 | /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command |
964 | has not been issued to the device then the values of | |
37014c64 BZ |
965 | id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */ |
966 | return (id[ATA_ID_FIELD_VALID] & 1) && /* Current translation valid */ | |
967 | id[ATA_ID_CUR_CYLS] && /* cylinders in current translation */ | |
968 | id[ATA_ID_CUR_HEADS] && /* heads in current translation */ | |
969 | id[ATA_ID_CUR_HEADS] <= 16 && | |
970 | id[ATA_ID_CUR_SECTORS]; /* sectors in current translation */ | |
8bf62ece AL |
971 | } |
972 | ||
4dce8ba9 | 973 | static inline bool ata_id_is_cfa(const u16 *id) |
b352e57d | 974 | { |
4b7d1c05 BG |
975 | if ((id[ATA_ID_CONFIG] == 0x848A) || /* Traditional CF */ |
976 | (id[ATA_ID_CONFIG] == 0x844A)) /* Delkin Devices CF */ | |
4dce8ba9 | 977 | return true; |
2999b58b SS |
978 | /* |
979 | * CF specs don't require specific value in the word 0 anymore and yet | |
980 | * they forbid to report the ATA version in the word 80 and require the | |
981 | * CFA feature set support to be indicated in the word 83 in this case. | |
982 | * Unfortunately, some cards only follow either of this requirements, | |
983 | * and while those that don't indicate CFA feature support need some | |
984 | * sort of quirk list, it seems impractical for the ones that do... | |
985 | */ | |
4dce8ba9 | 986 | return (id[ATA_ID_COMMAND_SET_2] & 0xC004) == 0x4004; |
b352e57d AC |
987 | } |
988 | ||
4dce8ba9 | 989 | static inline bool ata_id_is_ssd(const u16 *id) |
8bff7c6b JA |
990 | { |
991 | return id[ATA_ID_ROT_SPEED] == 0x01; | |
992 | } | |
993 | ||
856c4663 HR |
994 | static inline u8 ata_id_zoned_cap(const u16 *id) |
995 | { | |
996 | return (id[ATA_ID_ADDITIONAL_SUPP] & 0x3); | |
997 | } | |
998 | ||
4dce8ba9 | 999 | static inline bool ata_id_pio_need_iordy(const u16 *id, const u8 pio) |
6dae44f9 BZ |
1000 | { |
1001 | /* CF spec. r4.1 Table 22 says no IORDY on PIO5 and PIO6. */ | |
1002 | if (pio > 4 && ata_id_is_cfa(id)) | |
4dce8ba9 | 1003 | return false; |
6dae44f9 BZ |
1004 | /* For PIO3 and higher it is mandatory. */ |
1005 | if (pio > 2) | |
4dce8ba9 | 1006 | return true; |
6dae44f9 | 1007 | /* Turn it on when possible. */ |
4dce8ba9 | 1008 | return ata_id_has_iordy(id); |
6dae44f9 BZ |
1009 | } |
1010 | ||
4dce8ba9 | 1011 | static inline bool ata_drive_40wire(const u16 *dev_id) |
fc085150 | 1012 | { |
32d90911 | 1013 | if (ata_id_is_sata(dev_id)) |
4dce8ba9 | 1014 | return false; /* SATA */ |
37014c64 | 1015 | if ((dev_id[ATA_ID_HW_CONFIG] & 0xE000) == 0x6000) |
4dce8ba9 HR |
1016 | return false; /* 80 wire */ |
1017 | return true; | |
fc085150 AC |
1018 | } |
1019 | ||
4dce8ba9 | 1020 | static inline bool ata_drive_40wire_relaxed(const u16 *dev_id) |
6bbfd53d | 1021 | { |
37014c64 | 1022 | if ((dev_id[ATA_ID_HW_CONFIG] & 0x2000) == 0x2000) |
4dce8ba9 HR |
1023 | return false; /* 80 wire */ |
1024 | return true; | |
6bbfd53d AC |
1025 | } |
1026 | ||
057ace5e | 1027 | static inline int atapi_cdb_len(const u16 *dev_id) |
1da177e4 | 1028 | { |
37014c64 | 1029 | u16 tmp = dev_id[ATA_ID_CONFIG] & 0x3; |
1da177e4 LT |
1030 | switch (tmp) { |
1031 | case 0: return 12; | |
1032 | case 1: return 16; | |
1033 | default: return -1; | |
1034 | } | |
1035 | } | |
1036 | ||
d8668fcb | 1037 | static inline int atapi_command_packet_set(const u16 *dev_id) |
f8d8e579 | 1038 | { |
37014c64 | 1039 | return (dev_id[ATA_ID_CONFIG] >> 8) & 0x1f; |
f8d8e579 TB |
1040 | } |
1041 | ||
4dce8ba9 | 1042 | static inline bool atapi_id_dmadir(const u16 *dev_id) |
91163006 TH |
1043 | { |
1044 | return ata_id_major_version(dev_id) >= 7 && (dev_id[62] & 0x8000); | |
1045 | } | |
1046 | ||
a02227c9 BZ |
1047 | /* |
1048 | * ata_id_is_lba_capacity_ok() performs a sanity check on | |
1049 | * the claimed LBA capacity value for the device. | |
1050 | * | |
1051 | * Returns 1 if LBA capacity looks sensible, 0 otherwise. | |
1052 | * | |
1053 | * It is called only once for each device. | |
1054 | */ | |
4dce8ba9 | 1055 | static inline bool ata_id_is_lba_capacity_ok(u16 *id) |
a02227c9 BZ |
1056 | { |
1057 | unsigned long lba_sects, chs_sects, head, tail; | |
1058 | ||
1059 | /* No non-LBA info .. so valid! */ | |
1060 | if (id[ATA_ID_CYLS] == 0) | |
4dce8ba9 | 1061 | return true; |
a02227c9 BZ |
1062 | |
1063 | lba_sects = ata_id_u32(id, ATA_ID_LBA_CAPACITY); | |
1064 | ||
1065 | /* | |
1066 | * The ATA spec tells large drives to return | |
1067 | * C/H/S = 16383/16/63 independent of their size. | |
1068 | * Some drives can be jumpered to use 15 heads instead of 16. | |
1069 | * Some drives can be jumpered to use 4092 cyls instead of 16383. | |
1070 | */ | |
1071 | if ((id[ATA_ID_CYLS] == 16383 || | |
1072 | (id[ATA_ID_CYLS] == 4092 && id[ATA_ID_CUR_CYLS] == 16383)) && | |
1073 | id[ATA_ID_SECTORS] == 63 && | |
1074 | (id[ATA_ID_HEADS] == 15 || id[ATA_ID_HEADS] == 16) && | |
1075 | (lba_sects >= 16383 * 63 * id[ATA_ID_HEADS])) | |
4dce8ba9 | 1076 | return true; |
a02227c9 BZ |
1077 | |
1078 | chs_sects = id[ATA_ID_CYLS] * id[ATA_ID_HEADS] * id[ATA_ID_SECTORS]; | |
1079 | ||
1080 | /* perform a rough sanity check on lba_sects: within 10% is OK */ | |
1081 | if (lba_sects - chs_sects < chs_sects/10) | |
4dce8ba9 | 1082 | return true; |
a02227c9 BZ |
1083 | |
1084 | /* some drives have the word order reversed */ | |
1085 | head = (lba_sects >> 16) & 0xffff; | |
1086 | tail = lba_sects & 0xffff; | |
1087 | lba_sects = head | (tail << 16); | |
1088 | ||
1089 | if (lba_sects - chs_sects < chs_sects/10) { | |
1090 | *(__le32 *)&id[ATA_ID_LBA_CAPACITY] = __cpu_to_le32(lba_sects); | |
4dce8ba9 | 1091 | return true; /* LBA capacity is (now) good */ |
a02227c9 BZ |
1092 | } |
1093 | ||
4dce8ba9 | 1094 | return false; /* LBA capacity value may be bad */ |
a02227c9 BZ |
1095 | } |
1096 | ||
93734a23 BZ |
1097 | static inline void ata_id_to_hd_driveid(u16 *id) |
1098 | { | |
1099 | #ifdef __BIG_ENDIAN | |
1100 | /* accessed in struct hd_driveid as 8-bit values */ | |
1101 | id[ATA_ID_MAX_MULTSECT] = __cpu_to_le16(id[ATA_ID_MAX_MULTSECT]); | |
1102 | id[ATA_ID_CAPABILITY] = __cpu_to_le16(id[ATA_ID_CAPABILITY]); | |
1103 | id[ATA_ID_OLD_PIO_MODES] = __cpu_to_le16(id[ATA_ID_OLD_PIO_MODES]); | |
1104 | id[ATA_ID_OLD_DMA_MODES] = __cpu_to_le16(id[ATA_ID_OLD_DMA_MODES]); | |
1105 | id[ATA_ID_MULTSECT] = __cpu_to_le16(id[ATA_ID_MULTSECT]); | |
1106 | ||
1107 | /* as 32-bit values */ | |
1108 | *(u32 *)&id[ATA_ID_LBA_CAPACITY] = ata_id_u32(id, ATA_ID_LBA_CAPACITY); | |
1109 | *(u32 *)&id[ATA_ID_SPG] = ata_id_u32(id, ATA_ID_SPG); | |
1110 | ||
1111 | /* as 64-bit value */ | |
1112 | *(u64 *)&id[ATA_ID_LBA_CAPACITY_2] = | |
1113 | ata_id_u64(id, ATA_ID_LBA_CAPACITY_2); | |
1114 | #endif | |
1115 | } | |
1116 | ||
4dce8ba9 | 1117 | static inline bool ata_ok(u8 status) |
1da177e4 LT |
1118 | { |
1119 | return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR)) | |
1120 | == ATA_DRDY); | |
1121 | } | |
1122 | ||
4dce8ba9 | 1123 | static inline bool lba_28_ok(u64 block, u32 n_block) |
c6a33e24 | 1124 | { |
45c4d015 | 1125 | /* check the ending block number: must be LESS THAN 0x0fffffff */ |
35303d5c | 1126 | return ((block + n_block) < ((1 << 28) - 1)) && (n_block <= ATA_MAX_SECTORS); |
c6a33e24 AL |
1127 | } |
1128 | ||
4dce8ba9 | 1129 | static inline bool lba_48_ok(u64 block, u32 n_block) |
c6a33e24 AL |
1130 | { |
1131 | /* check the ending block number */ | |
35303d5c | 1132 | return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= ATA_MAX_SECTORS_LBA48); |
c6a33e24 AL |
1133 | } |
1134 | ||
814600ee TH |
1135 | #define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff) |
1136 | #define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16) | |
1137 | #define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff) | |
1138 | #define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf) | |
1139 | ||
1da177e4 | 1140 | #endif /* __LINUX_ATA_H__ */ |