Commit | Line | Data |
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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 | ||
41 | enum { | |
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, |
8b881b04 | 49 | ATA_MAX_SECTORS_LBA48 = 65535,/* TODO: 65536? */ |
f8d8e579 | 50 | ATA_MAX_SECTORS_TAPE = 65535, |
1da177e4 LT |
51 | |
52 | ATA_ID_WORDS = 256, | |
37014c64 BZ |
53 | ATA_ID_CONFIG = 0, |
54 | ATA_ID_CYLS = 1, | |
55 | ATA_ID_HEADS = 3, | |
56 | ATA_ID_SECTORS = 6, | |
a0cf733b | 57 | ATA_ID_SERNO = 10, |
37014c64 | 58 | ATA_ID_BUF_SIZE = 21, |
a0cf733b TH |
59 | ATA_ID_FW_REV = 23, |
60 | ATA_ID_PROD = 27, | |
37014c64 BZ |
61 | ATA_ID_MAX_MULTSECT = 47, |
62 | ATA_ID_DWORD_IO = 48, | |
63 | ATA_ID_CAPABILITY = 49, | |
11e29e21 | 64 | ATA_ID_OLD_PIO_MODES = 51, |
37014c64 | 65 | ATA_ID_OLD_DMA_MODES = 52, |
11e29e21 | 66 | ATA_ID_FIELD_VALID = 53, |
37014c64 BZ |
67 | ATA_ID_CUR_CYLS = 54, |
68 | ATA_ID_CUR_HEADS = 55, | |
69 | ATA_ID_CUR_SECTORS = 56, | |
70 | ATA_ID_MULTSECT = 59, | |
71 | ATA_ID_LBA_CAPACITY = 60, | |
72 | ATA_ID_SWDMA_MODES = 62, | |
1da177e4 | 73 | ATA_ID_MWDMA_MODES = 63, |
11e29e21 AC |
74 | ATA_ID_PIO_MODES = 64, |
75 | ATA_ID_EIDE_DMA_MIN = 65, | |
37014c64 | 76 | ATA_ID_EIDE_DMA_TIME = 66, |
11e29e21 AC |
77 | ATA_ID_EIDE_PIO = 67, |
78 | ATA_ID_EIDE_PIO_IORDY = 68, | |
e78db4df | 79 | ATA_ID_ADDITIONAL_SUPP = 69, |
37014c64 | 80 | ATA_ID_QUEUE_DEPTH = 75, |
583661a8 SH |
81 | ATA_ID_SATA_CAPABILITY = 76, |
82 | ATA_ID_SATA_CAPABILITY_2 = 77, | |
83 | ATA_ID_FEATURE_SUPP = 78, | |
11e29e21 | 84 | ATA_ID_MAJOR_VER = 80, |
37014c64 BZ |
85 | ATA_ID_COMMAND_SET_1 = 82, |
86 | ATA_ID_COMMAND_SET_2 = 83, | |
87 | ATA_ID_CFSSE = 84, | |
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, | |
93 | ATA_ID_SPG = 98, | |
94 | ATA_ID_LBA_CAPACITY_2 = 100, | |
18f0f978 | 95 | ATA_ID_SECTOR_SIZE = 106, |
6b3b9d73 | 96 | ATA_ID_WWN = 108, |
295124dc | 97 | ATA_ID_LOGICAL_SECTOR_SIZE = 117, /* and 118 */ |
fe7173c2 HR |
98 | ATA_ID_COMMAND_SET_3 = 119, |
99 | ATA_ID_COMMAND_SET_4 = 120, | |
37014c64 BZ |
100 | ATA_ID_LAST_LUN = 126, |
101 | ATA_ID_DLF = 128, | |
102 | ATA_ID_CSFO = 129, | |
103 | ATA_ID_CFA_POWER = 160, | |
d42ad15b SS |
104 | ATA_ID_CFA_KEY_MGMT = 162, |
105 | ATA_ID_CFA_MODES = 163, | |
0c659b82 | 106 | ATA_ID_DATA_SET_MGMT = 169, |
8bff7c6b | 107 | ATA_ID_ROT_SPEED = 217, |
1da177e4 LT |
108 | ATA_ID_PIO4 = (1 << 1), |
109 | ||
a0cf733b TH |
110 | ATA_ID_SERNO_LEN = 20, |
111 | ATA_ID_FW_REV_LEN = 8, | |
112 | ATA_ID_PROD_LEN = 40, | |
6b3b9d73 | 113 | ATA_ID_WWN_LEN = 8, |
a0cf733b | 114 | |
1da177e4 | 115 | ATA_PCI_CTL_OFS = 2, |
4099d143 BZ |
116 | |
117 | ATA_PIO0 = (1 << 0), | |
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), | |
124 | ||
22ddbd1e EIB |
125 | ATA_PIO4_ONLY = (1 << 4), |
126 | ||
91a6d4ed BZ |
127 | ATA_SWDMA0 = (1 << 0), |
128 | ATA_SWDMA1 = ATA_SWDMA0 | (1 << 1), | |
129 | ATA_SWDMA2 = ATA_SWDMA1 | (1 << 2), | |
130 | ||
131 | ATA_SWDMA2_ONLY = (1 << 2), | |
132 | ||
133 | ATA_MWDMA0 = (1 << 0), | |
134 | ATA_MWDMA1 = ATA_MWDMA0 | (1 << 1), | |
135 | ATA_MWDMA2 = ATA_MWDMA1 | (1 << 2), | |
22ddbd1e EIB |
136 | ATA_MWDMA3 = ATA_MWDMA2 | (1 << 3), |
137 | ATA_MWDMA4 = ATA_MWDMA3 | (1 << 4), | |
91a6d4ed BZ |
138 | |
139 | ATA_MWDMA12_ONLY = (1 << 1) | (1 << 2), | |
140 | ATA_MWDMA2_ONLY = (1 << 2), | |
141 | ||
1da177e4 LT |
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?). */ | |
151 | ||
22ddbd1e EIB |
152 | ATA_UDMA24_ONLY = (1 << 2) | (1 << 4), |
153 | ||
1da177e4 LT |
154 | ATA_UDMA_MASK_40C = ATA_UDMA2, /* udma0-2 */ |
155 | ||
156 | /* DMA-related */ | |
157 | ATA_PRD_SZ = 8, | |
158 | ATA_PRD_TBL_SZ = (ATA_MAX_PRD * ATA_PRD_SZ), | |
159 | ATA_PRD_EOT = (1 << 31), /* end-of-table flag */ | |
160 | ||
161 | ATA_DMA_TABLE_OFS = 4, | |
162 | ATA_DMA_STATUS = 2, | |
163 | ATA_DMA_CMD = 0, | |
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), | |
169 | ||
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 */ | |
b5911620 | 180 | ATA_DSC = (1 << 4), /* drive seek complete */ |
1da177e4 | 181 | ATA_DRQ = (1 << 3), /* data request i/o */ |
b5911620 | 182 | ATA_CORR = (1 << 2), /* corrected data error */ |
27f00e53 | 183 | ATA_SENSE = (1 << 1), /* sense code available */ |
1da177e4 LT |
184 | ATA_ERR = (1 << 0), /* have an error */ |
185 | ATA_SRST = (1 << 2), /* software reset */ | |
9be1e979 | 186 | ATA_ICRC = (1 << 7), /* interface CRC error */ |
b5911620 | 187 | ATA_BBK = ATA_ICRC, /* pre-EIDE: block marked bad */ |
9be1e979 | 188 | ATA_UNC = (1 << 6), /* uncorrectable media error */ |
b5911620 | 189 | ATA_MC = (1 << 5), /* media changed */ |
9be1e979 | 190 | ATA_IDNF = (1 << 4), /* ID not found */ |
b5911620 | 191 | ATA_MCR = (1 << 3), /* media change requested */ |
1da177e4 | 192 | ATA_ABORTED = (1 << 2), /* command aborted */ |
b5911620 BZ |
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 */ | |
198 | ATAPI_IO = (1 << 1), | |
199 | ATAPI_COD = (1 << 0), | |
1da177e4 LT |
200 | |
201 | /* ATA command block registers */ | |
202 | ATA_REG_DATA = 0x00, | |
203 | ATA_REG_ERR = 0x01, | |
204 | ATA_REG_NSECT = 0x02, | |
205 | ATA_REG_LBAL = 0x03, | |
206 | ATA_REG_LBAM = 0x04, | |
207 | ATA_REG_LBAH = 0x05, | |
208 | ATA_REG_DEVICE = 0x06, | |
209 | ATA_REG_STATUS = 0x07, | |
210 | ||
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, | |
217 | ||
218 | /* ATA device commands */ | |
ab2181cf | 219 | ATA_CMD_DEV_RESET = 0x08, /* ATAPI device reset */ |
1da177e4 | 220 | ATA_CMD_CHK_POWER = 0xE5, /* check power mode */ |
972dcafb DG |
221 | ATA_CMD_STANDBY = 0xE2, /* place in standby power mode */ |
222 | ATA_CMD_IDLE = 0xE3, /* place in idle power mode */ | |
1da177e4 | 223 | ATA_CMD_EDD = 0x90, /* execute device diagnostic */ |
6521148c | 224 | ATA_CMD_DOWNLOAD_MICRO = 0x92, |
3915c3b5 | 225 | ATA_CMD_DOWNLOAD_MICRO_DMA = 0x93, |
6521148c | 226 | ATA_CMD_NOP = 0x00, |
1da177e4 LT |
227 | ATA_CMD_FLUSH = 0xE7, |
228 | ATA_CMD_FLUSH_EXT = 0xEA, | |
229 | ATA_CMD_ID_ATA = 0xEC, | |
230 | ATA_CMD_ID_ATAPI = 0xA1, | |
6521148c | 231 | ATA_CMD_SERVICE = 0xA2, |
1da177e4 LT |
232 | ATA_CMD_READ = 0xC8, |
233 | ATA_CMD_READ_EXT = 0x25, | |
6521148c RH |
234 | ATA_CMD_READ_QUEUED = 0x26, |
235 | ATA_CMD_READ_STREAM_EXT = 0x2B, | |
236 | ATA_CMD_READ_STREAM_DMA_EXT = 0x2A, | |
1da177e4 LT |
237 | ATA_CMD_WRITE = 0xCA, |
238 | ATA_CMD_WRITE_EXT = 0x35, | |
6521148c RH |
239 | ATA_CMD_WRITE_QUEUED = 0x36, |
240 | ATA_CMD_WRITE_STREAM_EXT = 0x3B, | |
241 | ATA_CMD_WRITE_STREAM_DMA_EXT = 0x3A, | |
9a3dccc4 | 242 | ATA_CMD_WRITE_FUA_EXT = 0x3D, |
6521148c | 243 | ATA_CMD_WRITE_QUEUED_FUA_EXT = 0x3E, |
88e49034 TH |
244 | ATA_CMD_FPDMA_READ = 0x60, |
245 | ATA_CMD_FPDMA_WRITE = 0x61, | |
ed36911c MC |
246 | ATA_CMD_FPDMA_SEND = 0x64, |
247 | ATA_CMD_FPDMA_RECV = 0x65, | |
1da177e4 LT |
248 | ATA_CMD_PIO_READ = 0x20, |
249 | ATA_CMD_PIO_READ_EXT = 0x24, | |
250 | ATA_CMD_PIO_WRITE = 0x30, | |
251 | ATA_CMD_PIO_WRITE_EXT = 0x34, | |
8cbd6df1 AL |
252 | ATA_CMD_READ_MULTI = 0xC4, |
253 | ATA_CMD_READ_MULTI_EXT = 0x29, | |
254 | ATA_CMD_WRITE_MULTI = 0xC5, | |
255 | ATA_CMD_WRITE_MULTI_EXT = 0x39, | |
9a3dccc4 | 256 | ATA_CMD_WRITE_MULTI_FUA_EXT = 0xCE, |
1da177e4 | 257 | ATA_CMD_SET_FEATURES = 0xEF, |
2c3d2a46 | 258 | ATA_CMD_SET_MULTI = 0xC6, |
1da177e4 LT |
259 | ATA_CMD_PACKET = 0xA0, |
260 | ATA_CMD_VERIFY = 0x40, | |
261 | ATA_CMD_VERIFY_EXT = 0x42, | |
6521148c | 262 | ATA_CMD_WRITE_UNCORR_EXT = 0x45, |
2dcb407e JG |
263 | ATA_CMD_STANDBYNOW1 = 0xE0, |
264 | ATA_CMD_IDLEIMMEDIATE = 0xE1, | |
054a5fba | 265 | ATA_CMD_SLEEP = 0xE6, |
8bf62ece | 266 | ATA_CMD_INIT_DEV_PARAMS = 0x91, |
b6782728 AC |
267 | ATA_CMD_READ_NATIVE_MAX = 0xF8, |
268 | ATA_CMD_READ_NATIVE_MAX_EXT = 0x27, | |
1e999736 AC |
269 | ATA_CMD_SET_MAX = 0xF9, |
270 | ATA_CMD_SET_MAX_EXT = 0x37, | |
6521148c RH |
271 | ATA_CMD_READ_LOG_EXT = 0x2F, |
272 | ATA_CMD_WRITE_LOG_EXT = 0x3F, | |
273 | ATA_CMD_READ_LOG_DMA_EXT = 0x47, | |
274 | ATA_CMD_WRITE_LOG_DMA_EXT = 0x57, | |
3915c3b5 | 275 | ATA_CMD_TRUSTED_NONDATA = 0x5B, |
6521148c RH |
276 | ATA_CMD_TRUSTED_RCV = 0x5C, |
277 | ATA_CMD_TRUSTED_RCV_DMA = 0x5D, | |
278 | ATA_CMD_TRUSTED_SND = 0x5E, | |
279 | ATA_CMD_TRUSTED_SND_DMA = 0x5F, | |
814600ee | 280 | ATA_CMD_PMP_READ = 0xE4, |
3915c3b5 | 281 | ATA_CMD_PMP_READ_DMA = 0xE9, |
814600ee | 282 | ATA_CMD_PMP_WRITE = 0xE8, |
3915c3b5 | 283 | ATA_CMD_PMP_WRITE_DMA = 0xEB, |
ce2e0abb | 284 | ATA_CMD_CONF_OVERLAY = 0xB1, |
6521148c RH |
285 | ATA_CMD_SEC_SET_PASS = 0xF1, |
286 | ATA_CMD_SEC_UNLOCK = 0xF2, | |
287 | ATA_CMD_SEC_ERASE_PREP = 0xF3, | |
288 | ATA_CMD_SEC_ERASE_UNIT = 0xF4, | |
ce2e0abb | 289 | ATA_CMD_SEC_FREEZE_LOCK = 0xF5, |
6521148c RH |
290 | ATA_CMD_SEC_DISABLE_PASS = 0xF6, |
291 | ATA_CMD_CONFIG_STREAM = 0x51, | |
476d9894 BZ |
292 | ATA_CMD_SMART = 0xB0, |
293 | ATA_CMD_MEDIA_LOCK = 0xDE, | |
294 | ATA_CMD_MEDIA_UNLOCK = 0xDF, | |
0c659b82 | 295 | ATA_CMD_DSM = 0x06, |
6521148c RH |
296 | ATA_CMD_CHK_MED_CRD_TYP = 0xD1, |
297 | ATA_CMD_CFA_REQ_EXT_ERR = 0x03, | |
298 | ATA_CMD_CFA_WRITE_NE = 0x38, | |
299 | ATA_CMD_CFA_TRANS_SECT = 0x87, | |
300 | ATA_CMD_CFA_ERASE = 0xC0, | |
301 | ATA_CMD_CFA_WRITE_MULT_NE = 0xCD, | |
3915c3b5 RH |
302 | ATA_CMD_REQ_SENSE_DATA = 0x0B, |
303 | ATA_CMD_SANITIZE_DEVICE = 0xB4, | |
304 | ||
476d9894 BZ |
305 | /* marked obsolete in the ATA/ATAPI-7 spec */ |
306 | ATA_CMD_RESTORE = 0x10, | |
88e49034 | 307 | |
ed36911c MC |
308 | /* Subcmds for ATA_CMD_FPDMA_SEND */ |
309 | ATA_SUBCMD_FPDMA_SEND_DSM = 0x00, | |
310 | ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT = 0x02, | |
311 | ||
88e49034 TH |
312 | /* READ_LOG_EXT pages */ |
313 | ATA_LOG_SATA_NCQ = 0x10, | |
ed36911c | 314 | ATA_LOG_NCQ_SEND_RECV = 0x13, |
65fe1f0f SH |
315 | ATA_LOG_SATA_ID_DEV_DATA = 0x30, |
316 | ATA_LOG_SATA_SETTINGS = 0x08, | |
803739d2 SH |
317 | ATA_LOG_DEVSLP_OFFSET = 0x30, |
318 | ATA_LOG_DEVSLP_SIZE = 0x08, | |
319 | ATA_LOG_DEVSLP_MDAT = 0x00, | |
65fe1f0f | 320 | ATA_LOG_DEVSLP_MDAT_MASK = 0x1F, |
803739d2 SH |
321 | ATA_LOG_DEVSLP_DETO = 0x01, |
322 | ATA_LOG_DEVSLP_VALID = 0x07, | |
65fe1f0f | 323 | ATA_LOG_DEVSLP_VALID_MASK = 0x80, |
1da177e4 | 324 | |
ed36911c MC |
325 | /* NCQ send and receive log */ |
326 | ATA_LOG_NCQ_SEND_RECV_SUBCMDS_OFFSET = 0x00, | |
327 | ATA_LOG_NCQ_SEND_RECV_SUBCMDS_DSM = (1 << 0), | |
328 | ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET = 0x04, | |
329 | ATA_LOG_NCQ_SEND_RECV_DSM_TRIM = (1 << 0), | |
330 | ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET = 0x08, | |
331 | ATA_LOG_NCQ_SEND_RECV_WR_LOG_OFFSET = 0x0C, | |
332 | ATA_LOG_NCQ_SEND_RECV_SIZE = 0x10, | |
333 | ||
5a5dbd18 ML |
334 | /* READ/WRITE LONG (obsolete) */ |
335 | ATA_CMD_READ_LONG = 0x22, | |
336 | ATA_CMD_READ_LONG_ONCE = 0x23, | |
337 | ATA_CMD_WRITE_LONG = 0x32, | |
338 | ATA_CMD_WRITE_LONG_ONCE = 0x33, | |
339 | ||
1da177e4 LT |
340 | /* SETFEATURES stuff */ |
341 | SETFEATURES_XFER = 0x03, | |
342 | XFER_UDMA_7 = 0x47, | |
343 | XFER_UDMA_6 = 0x46, | |
344 | XFER_UDMA_5 = 0x45, | |
345 | XFER_UDMA_4 = 0x44, | |
346 | XFER_UDMA_3 = 0x43, | |
347 | XFER_UDMA_2 = 0x42, | |
348 | XFER_UDMA_1 = 0x41, | |
349 | XFER_UDMA_0 = 0x40, | |
b352e57d AC |
350 | XFER_MW_DMA_4 = 0x24, /* CFA only */ |
351 | XFER_MW_DMA_3 = 0x23, /* CFA only */ | |
1da177e4 LT |
352 | XFER_MW_DMA_2 = 0x22, |
353 | XFER_MW_DMA_1 = 0x21, | |
354 | XFER_MW_DMA_0 = 0x20, | |
b4b52db7 AC |
355 | XFER_SW_DMA_2 = 0x12, |
356 | XFER_SW_DMA_1 = 0x11, | |
357 | XFER_SW_DMA_0 = 0x10, | |
b352e57d AC |
358 | XFER_PIO_6 = 0x0E, /* CFA only */ |
359 | XFER_PIO_5 = 0x0D, /* CFA only */ | |
1da177e4 LT |
360 | XFER_PIO_4 = 0x0C, |
361 | XFER_PIO_3 = 0x0B, | |
362 | XFER_PIO_2 = 0x0A, | |
363 | XFER_PIO_1 = 0x09, | |
364 | XFER_PIO_0 = 0x08, | |
1da177e4 LT |
365 | XFER_PIO_SLOW = 0x00, |
366 | ||
3057ac3c | 367 | SETFEATURES_WC_ON = 0x02, /* Enable write cache */ |
368 | SETFEATURES_WC_OFF = 0x82, /* Disable write cache */ | |
369 | ||
476d9894 BZ |
370 | /* Enable/Disable Automatic Acoustic Management */ |
371 | SETFEATURES_AAM_ON = 0x42, | |
372 | SETFEATURES_AAM_OFF = 0xC2, | |
373 | ||
169439c2 ML |
374 | SETFEATURES_SPINUP = 0x07, /* Spin-up drive */ |
375 | ||
9f45cbd3 KCA |
376 | SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */ |
377 | SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */ | |
378 | ||
379 | /* SETFEATURE Sector counts for SATA features */ | |
fa5b561c | 380 | SATA_FPDMA_OFFSET = 0x01, /* FPDMA non-zero buffer offsets */ |
f1bce7f8 TH |
381 | SATA_FPDMA_AA = 0x02, /* FPDMA Setup FIS Auto-Activate */ |
382 | SATA_DIPM = 0x03, /* Device Initiated Power Management */ | |
fa5b561c | 383 | SATA_FPDMA_IN_ORDER = 0x04, /* FPDMA in-order data delivery */ |
f1bce7f8 | 384 | SATA_AN = 0x05, /* Asynchronous Notification */ |
fa5b561c | 385 | SATA_SSP = 0x06, /* Software Settings Preservation */ |
65fe1f0f | 386 | SATA_DEVSLP = 0x09, /* Device Sleep */ |
9f45cbd3 | 387 | |
ce2e0abb TH |
388 | /* feature values for SET_MAX */ |
389 | ATA_SET_MAX_ADDR = 0x00, | |
390 | ATA_SET_MAX_PASSWD = 0x01, | |
391 | ATA_SET_MAX_LOCK = 0x02, | |
392 | ATA_SET_MAX_UNLOCK = 0x03, | |
393 | ATA_SET_MAX_FREEZE_LOCK = 0x04, | |
394 | ||
395 | /* feature values for DEVICE CONFIGURATION OVERLAY */ | |
396 | ATA_DCO_RESTORE = 0xC0, | |
397 | ATA_DCO_FREEZE_LOCK = 0xC1, | |
398 | ATA_DCO_IDENTIFY = 0xC2, | |
399 | ATA_DCO_SET = 0xC3, | |
400 | ||
476d9894 BZ |
401 | /* feature values for SMART */ |
402 | ATA_SMART_ENABLE = 0xD8, | |
403 | ATA_SMART_READ_VALUES = 0xD0, | |
404 | ATA_SMART_READ_THRESHOLDS = 0xD1, | |
405 | ||
0c659b82 MW |
406 | /* feature values for Data Set Management */ |
407 | ATA_DSM_TRIM = 0x01, | |
408 | ||
476d9894 BZ |
409 | /* password used in LBA Mid / LBA High for executing SMART commands */ |
410 | ATA_SMART_LBAM_PASS = 0x4F, | |
411 | ATA_SMART_LBAH_PASS = 0xC2, | |
412 | ||
1da177e4 LT |
413 | /* ATAPI stuff */ |
414 | ATAPI_PKT_DMA = (1 << 0), | |
415 | ATAPI_DMADIR = (1 << 2), /* ATAPI data dir: | |
416 | 0=to device, 1=to host */ | |
417 | ATAPI_CDB_LEN = 16, | |
418 | ||
814600ee TH |
419 | /* PMP stuff */ |
420 | SATA_PMP_MAX_PORTS = 15, | |
421 | SATA_PMP_CTRL_PORT = 15, | |
422 | ||
423 | SATA_PMP_GSCR_DWORDS = 128, | |
424 | SATA_PMP_GSCR_PROD_ID = 0, | |
425 | SATA_PMP_GSCR_REV = 1, | |
426 | SATA_PMP_GSCR_PORT_INFO = 2, | |
427 | SATA_PMP_GSCR_ERROR = 32, | |
428 | SATA_PMP_GSCR_ERROR_EN = 33, | |
429 | SATA_PMP_GSCR_FEAT = 64, | |
430 | SATA_PMP_GSCR_FEAT_EN = 96, | |
431 | ||
432 | SATA_PMP_PSCR_STATUS = 0, | |
433 | SATA_PMP_PSCR_ERROR = 1, | |
434 | SATA_PMP_PSCR_CONTROL = 2, | |
435 | ||
436 | SATA_PMP_FEAT_BIST = (1 << 0), | |
437 | SATA_PMP_FEAT_PMREQ = (1 << 1), | |
438 | SATA_PMP_FEAT_DYNSSC = (1 << 2), | |
439 | SATA_PMP_FEAT_NOTIFY = (1 << 3), | |
440 | ||
1da177e4 LT |
441 | /* cable types */ |
442 | ATA_CBL_NONE = 0, | |
443 | ATA_CBL_PATA40 = 1, | |
444 | ATA_CBL_PATA80 = 2, | |
c88f90c3 TH |
445 | ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */ |
446 | ATA_CBL_PATA_UNK = 4, /* don't know, maybe 80c? */ | |
447 | ATA_CBL_PATA_IGN = 5, /* don't know, ignore cable handling */ | |
448 | ATA_CBL_SATA = 6, | |
1da177e4 LT |
449 | |
450 | /* SATA Status and Control Registers */ | |
451 | SCR_STATUS = 0, | |
452 | SCR_ERROR = 1, | |
453 | SCR_CONTROL = 2, | |
454 | SCR_ACTIVE = 3, | |
455 | SCR_NOTIFICATION = 4, | |
456 | ||
9be1e979 TH |
457 | /* SError bits */ |
458 | SERR_DATA_RECOVERED = (1 << 0), /* recovered data error */ | |
459 | SERR_COMM_RECOVERED = (1 << 1), /* recovered comm failure */ | |
460 | SERR_DATA = (1 << 8), /* unrecovered data error */ | |
461 | SERR_PERSISTENT = (1 << 9), /* persistent data/comm error */ | |
462 | SERR_PROTOCOL = (1 << 10), /* protocol violation */ | |
463 | SERR_INTERNAL = (1 << 11), /* host internal error */ | |
464 | SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */ | |
1333e194 RH |
465 | SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */ |
466 | SERR_COMM_WAKE = (1 << 18), /* Comm wake */ | |
467 | SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */ | |
468 | SERR_DISPARITY = (1 << 20), /* Disparity */ | |
469 | SERR_CRC = (1 << 21), /* CRC error */ | |
470 | SERR_HANDSHAKE = (1 << 22), /* Handshake error */ | |
471 | SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */ | |
472 | SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */ | |
473 | SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */ | |
9be1e979 | 474 | SERR_DEV_XCHG = (1 << 26), /* device exchanged */ |
1da177e4 LT |
475 | }; |
476 | ||
477 | enum ata_tf_protocols { | |
478 | /* ATA taskfile protocols */ | |
479 | ATA_PROT_UNKNOWN, /* unknown/invalid */ | |
480 | ATA_PROT_NODATA, /* no data */ | |
1dce589c | 481 | ATA_PROT_PIO, /* PIO data xfer */ |
1da177e4 | 482 | ATA_PROT_DMA, /* DMA */ |
88e49034 | 483 | ATA_PROT_NCQ, /* NCQ */ |
0dc36888 TH |
484 | ATAPI_PROT_NODATA, /* packet command, no data */ |
485 | ATAPI_PROT_PIO, /* packet command, PIO data xfer*/ | |
486 | ATAPI_PROT_DMA, /* packet command with special DMA sauce */ | |
1da177e4 LT |
487 | }; |
488 | ||
489 | enum ata_ioctls { | |
287e6611 AB |
490 | ATA_IOC_GET_IO32 = 0x309, /* HDIO_GET_32BIT */ |
491 | ATA_IOC_SET_IO32 = 0x324, /* HDIO_SET_32BIT */ | |
1da177e4 LT |
492 | }; |
493 | ||
494 | /* core structures */ | |
495 | ||
f60d7011 | 496 | struct ata_bmdma_prd { |
4ca4e439 AV |
497 | __le32 addr; |
498 | __le32 flags_len; | |
1da177e4 LT |
499 | }; |
500 | ||
405e66b3 TH |
501 | /* |
502 | * id tests | |
503 | */ | |
37014c64 BZ |
504 | #define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0) |
505 | #define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9)) | |
506 | #define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (1 << 8)) | |
583661a8 | 507 | #define ata_id_has_ncq(id) ((id)[ATA_ID_SATA_CAPABILITY] & (1 << 8)) |
37014c64 | 508 | #define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1) |
0628ee7c | 509 | #define ata_id_removable(id) ((id)[ATA_ID_CONFIG] & (1 << 7)) |
854c73a2 | 510 | #define ata_id_has_atapi_AN(id) \ |
583661a8 SH |
511 | ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ |
512 | ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ | |
513 | ((id)[ATA_ID_FEATURE_SUPP] & (1 << 5))) | |
388539f3 | 514 | #define ata_id_has_fpdma_aa(id) \ |
583661a8 SH |
515 | ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ |
516 | ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ | |
517 | ((id)[ATA_ID_FEATURE_SUPP] & (1 << 2))) | |
37014c64 BZ |
518 | #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10)) |
519 | #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11)) | |
1da177e4 LT |
520 | #define ata_id_u32(id,n) \ |
521 | (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)])) | |
522 | #define ata_id_u64(id,n) \ | |
523 | ( ((u64) (id)[(n) + 3] << 48) | \ | |
524 | ((u64) (id)[(n) + 2] << 32) | \ | |
525 | ((u64) (id)[(n) + 1] << 16) | \ | |
526 | ((u64) (id)[(n) + 0]) ) | |
527 | ||
37014c64 | 528 | #define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20) |
583661a8 | 529 | #define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4)) |
65fe1f0f | 530 | #define ata_id_has_devslp(id) ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8)) |
312f7da2 | 531 | |
ca77329f KCA |
532 | static inline bool ata_id_has_hipm(const u16 *id) |
533 | { | |
583661a8 | 534 | u16 val = id[ATA_ID_SATA_CAPABILITY]; |
ca77329f KCA |
535 | |
536 | if (val == 0 || val == 0xffff) | |
537 | return false; | |
538 | ||
539 | return val & (1 << 9); | |
540 | } | |
541 | ||
542 | static inline bool ata_id_has_dipm(const u16 *id) | |
543 | { | |
583661a8 | 544 | u16 val = id[ATA_ID_FEATURE_SUPP]; |
ca77329f KCA |
545 | |
546 | if (val == 0 || val == 0xffff) | |
547 | return false; | |
548 | ||
549 | return val & (1 << 3); | |
550 | } | |
551 | ||
ae8d4ee7 | 552 | |
4dce8ba9 | 553 | static inline bool ata_id_has_fua(const u16 *id) |
c7293870 | 554 | { |
37014c64 | 555 | if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000) |
4dce8ba9 | 556 | return false; |
37014c64 | 557 | return id[ATA_ID_CFSSE] & (1 << 6); |
c7293870 AC |
558 | } |
559 | ||
4dce8ba9 | 560 | static inline bool ata_id_has_flush(const u16 *id) |
c7293870 | 561 | { |
37014c64 | 562 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
4dce8ba9 | 563 | return false; |
37014c64 | 564 | return id[ATA_ID_COMMAND_SET_2] & (1 << 12); |
c7293870 AC |
565 | } |
566 | ||
4dce8ba9 | 567 | static inline bool ata_id_flush_enabled(const u16 *id) |
4b58f17d BZ |
568 | { |
569 | if (ata_id_has_flush(id) == 0) | |
4dce8ba9 | 570 | return false; |
4b58f17d | 571 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
4dce8ba9 | 572 | return false; |
4b58f17d BZ |
573 | return id[ATA_ID_CFS_ENABLE_2] & (1 << 12); |
574 | } | |
575 | ||
4dce8ba9 | 576 | static inline bool ata_id_has_flush_ext(const u16 *id) |
c7293870 | 577 | { |
37014c64 | 578 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
4dce8ba9 | 579 | return false; |
37014c64 | 580 | return id[ATA_ID_COMMAND_SET_2] & (1 << 13); |
c7293870 AC |
581 | } |
582 | ||
4dce8ba9 | 583 | static inline bool ata_id_flush_ext_enabled(const u16 *id) |
ff2779b5 BZ |
584 | { |
585 | if (ata_id_has_flush_ext(id) == 0) | |
4dce8ba9 | 586 | return false; |
ff2779b5 | 587 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
4dce8ba9 | 588 | return false; |
ff2779b5 BZ |
589 | /* |
590 | * some Maxtor disks have bit 13 defined incorrectly | |
591 | * so check bit 10 too | |
592 | */ | |
593 | return (id[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400; | |
594 | } | |
595 | ||
295124dc | 596 | static inline u32 ata_id_logical_sector_size(const u16 *id) |
18f0f978 | 597 | { |
295124dc GG |
598 | /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. |
599 | * IDENTIFY DEVICE data, word 117-118. | |
600 | * 0xd000 ignores bit 13 (logical:physical > 1) | |
601 | */ | |
602 | if ((id[ATA_ID_SECTOR_SIZE] & 0xd000) == 0x5000) | |
603 | return (((id[ATA_ID_LOGICAL_SECTOR_SIZE+1] << 16) | |
604 | + id[ATA_ID_LOGICAL_SECTOR_SIZE]) * sizeof(u16)) ; | |
605 | return ATA_SECT_SIZE; | |
606 | } | |
607 | ||
608 | static inline u8 ata_id_log2_per_physical_sector(const u16 *id) | |
609 | { | |
610 | /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. | |
611 | * IDENTIFY DEVICE data, word 106. | |
612 | * 0xe000 ignores bit 12 (logical sector > 512 bytes) | |
613 | */ | |
614 | if ((id[ATA_ID_SECTOR_SIZE] & 0xe000) == 0x6000) | |
615 | return (id[ATA_ID_SECTOR_SIZE] & 0xf); | |
616 | return 0; | |
18f0f978 CH |
617 | } |
618 | ||
295124dc GG |
619 | /* Offset of logical sectors relative to physical sectors. |
620 | * | |
621 | * If device has more than one logical sector per physical sector | |
622 | * (aka 512 byte emulation), vendors might offset the "sector 0" address | |
623 | * so sector 63 is "naturally aligned" - e.g. FAT partition table. | |
624 | * This avoids Read/Mod/Write penalties when using FAT partition table | |
625 | * and updating "well aligned" (FS perspective) physical sectors on every | |
626 | * transaction. | |
627 | */ | |
628 | static inline u16 ata_id_logical_sector_offset(const u16 *id, | |
629 | u8 log2_per_phys) | |
18f0f978 | 630 | { |
295124dc GG |
631 | u16 word_209 = id[209]; |
632 | ||
633 | if ((log2_per_phys > 1) && (word_209 & 0xc000) == 0x4000) { | |
634 | u16 first = word_209 & 0x3fff; | |
635 | if (first > 0) | |
636 | return (1 << log2_per_phys) - first; | |
637 | } | |
638 | return 0; | |
18f0f978 CH |
639 | } |
640 | ||
4dce8ba9 | 641 | static inline bool ata_id_has_lba48(const u16 *id) |
c7293870 | 642 | { |
37014c64 | 643 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
4dce8ba9 | 644 | return false; |
37014c64 | 645 | if (!ata_id_u64(id, ATA_ID_LBA_CAPACITY_2)) |
4dce8ba9 | 646 | return false; |
37014c64 | 647 | return id[ATA_ID_COMMAND_SET_2] & (1 << 10); |
c7293870 AC |
648 | } |
649 | ||
4dce8ba9 | 650 | static inline bool ata_id_lba48_enabled(const u16 *id) |
942dcd85 BZ |
651 | { |
652 | if (ata_id_has_lba48(id) == 0) | |
4dce8ba9 | 653 | return false; |
942dcd85 | 654 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
4dce8ba9 | 655 | return false; |
942dcd85 BZ |
656 | return id[ATA_ID_CFS_ENABLE_2] & (1 << 10); |
657 | } | |
658 | ||
4dce8ba9 | 659 | static inline bool ata_id_hpa_enabled(const u16 *id) |
c7293870 AC |
660 | { |
661 | /* Yes children, word 83 valid bits cover word 82 data */ | |
37014c64 | 662 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
4dce8ba9 | 663 | return false; |
c7293870 | 664 | /* And 87 covers 85-87 */ |
37014c64 | 665 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
4dce8ba9 | 666 | return false; |
c7293870 | 667 | /* Check command sets enabled as well as supported */ |
37014c64 | 668 | if ((id[ATA_ID_CFS_ENABLE_1] & (1 << 10)) == 0) |
4dce8ba9 | 669 | return false; |
37014c64 | 670 | return id[ATA_ID_COMMAND_SET_1] & (1 << 10); |
c7293870 AC |
671 | } |
672 | ||
4dce8ba9 | 673 | static inline bool ata_id_has_wcache(const u16 *id) |
c7293870 AC |
674 | { |
675 | /* Yes children, word 83 valid bits cover word 82 data */ | |
37014c64 | 676 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
4dce8ba9 | 677 | return false; |
37014c64 | 678 | return id[ATA_ID_COMMAND_SET_1] & (1 << 5); |
c7293870 AC |
679 | } |
680 | ||
4dce8ba9 | 681 | static inline bool ata_id_has_pm(const u16 *id) |
c7293870 | 682 | { |
37014c64 | 683 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
4dce8ba9 | 684 | return false; |
37014c64 | 685 | return id[ATA_ID_COMMAND_SET_1] & (1 << 3); |
c7293870 AC |
686 | } |
687 | ||
4dce8ba9 | 688 | static inline bool ata_id_rahead_enabled(const u16 *id) |
c7293870 | 689 | { |
37014c64 | 690 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
4dce8ba9 | 691 | return false; |
37014c64 | 692 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 6); |
c7293870 AC |
693 | } |
694 | ||
4dce8ba9 | 695 | static inline bool ata_id_wcache_enabled(const u16 *id) |
c7293870 | 696 | { |
37014c64 | 697 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
4dce8ba9 | 698 | return false; |
37014c64 | 699 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 5); |
c7293870 AC |
700 | } |
701 | ||
9faa6438 HR |
702 | static inline bool ata_id_has_read_log_dma_ext(const u16 *id) |
703 | { | |
406c057c | 704 | /* Word 86 must have bit 15 set */ |
9faa6438 HR |
705 | if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) |
706 | return false; | |
406c057c MP |
707 | |
708 | /* READ LOG DMA EXT support can be signaled either from word 119 | |
709 | * or from word 120. The format is the same for both words: Bit | |
710 | * 15 must be cleared, bit 14 set and bit 3 set. | |
711 | */ | |
712 | if ((id[ATA_ID_COMMAND_SET_3] & 0xC008) == 0x4008 || | |
713 | (id[ATA_ID_COMMAND_SET_4] & 0xC008) == 0x4008) | |
714 | return true; | |
715 | ||
716 | return false; | |
9faa6438 HR |
717 | } |
718 | ||
c7293870 AC |
719 | /** |
720 | * ata_id_major_version - get ATA level of drive | |
721 | * @id: Identify data | |
722 | * | |
723 | * Caveats: | |
724 | * ATA-1 considers identify optional | |
725 | * ATA-2 introduces mandatory identify | |
726 | * ATA-3 introduces word 80 and accurate reporting | |
727 | * | |
728 | * The practical impact of this is that ata_id_major_version cannot | |
2dcb407e | 729 | * reliably report on drives below ATA3. |
c7293870 AC |
730 | */ |
731 | ||
3d2ca910 TH |
732 | static inline unsigned int ata_id_major_version(const u16 *id) |
733 | { | |
734 | unsigned int mver; | |
735 | ||
b352e57d AC |
736 | if (id[ATA_ID_MAJOR_VER] == 0xFFFF) |
737 | return 0; | |
738 | ||
3d2ca910 TH |
739 | for (mver = 14; mver >= 1; mver--) |
740 | if (id[ATA_ID_MAJOR_VER] & (1 << mver)) | |
741 | break; | |
742 | return mver; | |
743 | } | |
744 | ||
4dce8ba9 | 745 | static inline bool ata_id_is_sata(const u16 *id) |
32d90911 | 746 | { |
367d7e78 BZ |
747 | /* |
748 | * See if word 93 is 0 AND drive is at least ATA-5 compatible | |
749 | * verifying that word 80 by casting it to a signed type -- | |
750 | * this trick allows us to filter out the reserved values of | |
751 | * 0x0000 and 0xffff along with the earlier ATA revisions... | |
752 | */ | |
753 | if (id[ATA_ID_HW_CONFIG] == 0 && (short)id[ATA_ID_MAJOR_VER] >= 0x0020) | |
4dce8ba9 HR |
754 | return true; |
755 | return false; | |
32d90911 TH |
756 | } |
757 | ||
4dce8ba9 | 758 | static inline bool ata_id_has_tpm(const u16 *id) |
ae8d4ee7 AC |
759 | { |
760 | /* The TPM bits are only valid on ATA8 */ | |
761 | if (ata_id_major_version(id) < 8) | |
4dce8ba9 | 762 | return false; |
ae8d4ee7 | 763 | if ((id[48] & 0xC000) != 0x4000) |
4dce8ba9 | 764 | return false; |
ae8d4ee7 AC |
765 | return id[48] & (1 << 0); |
766 | } | |
767 | ||
4dce8ba9 | 768 | static inline bool ata_id_has_dword_io(const u16 *id) |
ae8d4ee7 AC |
769 | { |
770 | /* ATA 8 reuses this flag for "trusted" computing */ | |
771 | if (ata_id_major_version(id) > 7) | |
4dce8ba9 HR |
772 | return false; |
773 | return id[ATA_ID_DWORD_IO] & (1 << 0); | |
ae8d4ee7 AC |
774 | } |
775 | ||
4dce8ba9 | 776 | static inline bool ata_id_has_unload(const u16 *id) |
ea6ce53c EO |
777 | { |
778 | if (ata_id_major_version(id) >= 7 && | |
779 | (id[ATA_ID_CFSSE] & 0xC000) == 0x4000 && | |
780 | id[ATA_ID_CFSSE] & (1 << 13)) | |
4dce8ba9 HR |
781 | return true; |
782 | return false; | |
ea6ce53c EO |
783 | } |
784 | ||
6b3b9d73 HR |
785 | static inline bool ata_id_has_wwn(const u16 *id) |
786 | { | |
787 | return (id[ATA_ID_CSF_DEFAULT] & 0xC100) == 0x4100; | |
788 | } | |
789 | ||
4bca3286 MP |
790 | static inline int ata_id_form_factor(const u16 *id) |
791 | { | |
792 | u16 val = id[168]; | |
793 | ||
794 | if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) | |
795 | return 0; | |
796 | ||
797 | val &= 0xf; | |
798 | ||
799 | if (val > 5) | |
800 | return 0; | |
801 | ||
802 | return val; | |
803 | } | |
804 | ||
805 | static inline int ata_id_rotation_rate(const u16 *id) | |
806 | { | |
807 | u16 val = id[217]; | |
808 | ||
809 | if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) | |
810 | return 0; | |
811 | ||
812 | if (val > 1 && val < 0x401) | |
813 | return 0; | |
814 | ||
815 | return val; | |
816 | } | |
817 | ||
ed36911c MC |
818 | static inline bool ata_id_has_ncq_send_and_recv(const u16 *id) |
819 | { | |
820 | return id[ATA_ID_SATA_CAPABILITY_2] & BIT(6); | |
821 | } | |
822 | ||
4dce8ba9 | 823 | static inline bool ata_id_has_trim(const u16 *id) |
0c659b82 MW |
824 | { |
825 | if (ata_id_major_version(id) >= 7 && | |
826 | (id[ATA_ID_DATA_SET_MGMT] & 1)) | |
4dce8ba9 HR |
827 | return true; |
828 | return false; | |
0c659b82 MW |
829 | } |
830 | ||
4dce8ba9 | 831 | static inline bool ata_id_has_zero_after_trim(const u16 *id) |
e78db4df MP |
832 | { |
833 | /* DSM supported, deterministic read, and read zero after trim set */ | |
834 | if (ata_id_has_trim(id) && | |
835 | (id[ATA_ID_ADDITIONAL_SUPP] & 0x4020) == 0x4020) | |
4dce8ba9 | 836 | return true; |
e78db4df | 837 | |
4dce8ba9 | 838 | return false; |
e78db4df MP |
839 | } |
840 | ||
4dce8ba9 | 841 | static inline bool ata_id_current_chs_valid(const u16 *id) |
8bf62ece | 842 | { |
9bec2e38 JG |
843 | /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command |
844 | has not been issued to the device then the values of | |
37014c64 BZ |
845 | id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */ |
846 | return (id[ATA_ID_FIELD_VALID] & 1) && /* Current translation valid */ | |
847 | id[ATA_ID_CUR_CYLS] && /* cylinders in current translation */ | |
848 | id[ATA_ID_CUR_HEADS] && /* heads in current translation */ | |
849 | id[ATA_ID_CUR_HEADS] <= 16 && | |
850 | id[ATA_ID_CUR_SECTORS]; /* sectors in current translation */ | |
8bf62ece AL |
851 | } |
852 | ||
4dce8ba9 | 853 | static inline bool ata_id_is_cfa(const u16 *id) |
b352e57d | 854 | { |
4b7d1c05 BG |
855 | if ((id[ATA_ID_CONFIG] == 0x848A) || /* Traditional CF */ |
856 | (id[ATA_ID_CONFIG] == 0x844A)) /* Delkin Devices CF */ | |
4dce8ba9 | 857 | return true; |
2999b58b SS |
858 | /* |
859 | * CF specs don't require specific value in the word 0 anymore and yet | |
860 | * they forbid to report the ATA version in the word 80 and require the | |
861 | * CFA feature set support to be indicated in the word 83 in this case. | |
862 | * Unfortunately, some cards only follow either of this requirements, | |
863 | * and while those that don't indicate CFA feature support need some | |
864 | * sort of quirk list, it seems impractical for the ones that do... | |
865 | */ | |
4dce8ba9 | 866 | return (id[ATA_ID_COMMAND_SET_2] & 0xC004) == 0x4004; |
b352e57d AC |
867 | } |
868 | ||
4dce8ba9 | 869 | static inline bool ata_id_is_ssd(const u16 *id) |
8bff7c6b JA |
870 | { |
871 | return id[ATA_ID_ROT_SPEED] == 0x01; | |
872 | } | |
873 | ||
4dce8ba9 | 874 | static inline bool ata_id_pio_need_iordy(const u16 *id, const u8 pio) |
6dae44f9 BZ |
875 | { |
876 | /* CF spec. r4.1 Table 22 says no IORDY on PIO5 and PIO6. */ | |
877 | if (pio > 4 && ata_id_is_cfa(id)) | |
4dce8ba9 | 878 | return false; |
6dae44f9 BZ |
879 | /* For PIO3 and higher it is mandatory. */ |
880 | if (pio > 2) | |
4dce8ba9 | 881 | return true; |
6dae44f9 | 882 | /* Turn it on when possible. */ |
4dce8ba9 | 883 | return ata_id_has_iordy(id); |
6dae44f9 BZ |
884 | } |
885 | ||
4dce8ba9 | 886 | static inline bool ata_drive_40wire(const u16 *dev_id) |
fc085150 | 887 | { |
32d90911 | 888 | if (ata_id_is_sata(dev_id)) |
4dce8ba9 | 889 | return false; /* SATA */ |
37014c64 | 890 | if ((dev_id[ATA_ID_HW_CONFIG] & 0xE000) == 0x6000) |
4dce8ba9 HR |
891 | return false; /* 80 wire */ |
892 | return true; | |
fc085150 AC |
893 | } |
894 | ||
4dce8ba9 | 895 | static inline bool ata_drive_40wire_relaxed(const u16 *dev_id) |
6bbfd53d | 896 | { |
37014c64 | 897 | if ((dev_id[ATA_ID_HW_CONFIG] & 0x2000) == 0x2000) |
4dce8ba9 HR |
898 | return false; /* 80 wire */ |
899 | return true; | |
6bbfd53d AC |
900 | } |
901 | ||
057ace5e | 902 | static inline int atapi_cdb_len(const u16 *dev_id) |
1da177e4 | 903 | { |
37014c64 | 904 | u16 tmp = dev_id[ATA_ID_CONFIG] & 0x3; |
1da177e4 LT |
905 | switch (tmp) { |
906 | case 0: return 12; | |
907 | case 1: return 16; | |
908 | default: return -1; | |
909 | } | |
910 | } | |
911 | ||
d8668fcb | 912 | static inline int atapi_command_packet_set(const u16 *dev_id) |
f8d8e579 | 913 | { |
37014c64 | 914 | return (dev_id[ATA_ID_CONFIG] >> 8) & 0x1f; |
f8d8e579 TB |
915 | } |
916 | ||
4dce8ba9 | 917 | static inline bool atapi_id_dmadir(const u16 *dev_id) |
91163006 TH |
918 | { |
919 | return ata_id_major_version(dev_id) >= 7 && (dev_id[62] & 0x8000); | |
920 | } | |
921 | ||
a02227c9 BZ |
922 | /* |
923 | * ata_id_is_lba_capacity_ok() performs a sanity check on | |
924 | * the claimed LBA capacity value for the device. | |
925 | * | |
926 | * Returns 1 if LBA capacity looks sensible, 0 otherwise. | |
927 | * | |
928 | * It is called only once for each device. | |
929 | */ | |
4dce8ba9 | 930 | static inline bool ata_id_is_lba_capacity_ok(u16 *id) |
a02227c9 BZ |
931 | { |
932 | unsigned long lba_sects, chs_sects, head, tail; | |
933 | ||
934 | /* No non-LBA info .. so valid! */ | |
935 | if (id[ATA_ID_CYLS] == 0) | |
4dce8ba9 | 936 | return true; |
a02227c9 BZ |
937 | |
938 | lba_sects = ata_id_u32(id, ATA_ID_LBA_CAPACITY); | |
939 | ||
940 | /* | |
941 | * The ATA spec tells large drives to return | |
942 | * C/H/S = 16383/16/63 independent of their size. | |
943 | * Some drives can be jumpered to use 15 heads instead of 16. | |
944 | * Some drives can be jumpered to use 4092 cyls instead of 16383. | |
945 | */ | |
946 | if ((id[ATA_ID_CYLS] == 16383 || | |
947 | (id[ATA_ID_CYLS] == 4092 && id[ATA_ID_CUR_CYLS] == 16383)) && | |
948 | id[ATA_ID_SECTORS] == 63 && | |
949 | (id[ATA_ID_HEADS] == 15 || id[ATA_ID_HEADS] == 16) && | |
950 | (lba_sects >= 16383 * 63 * id[ATA_ID_HEADS])) | |
4dce8ba9 | 951 | return true; |
a02227c9 BZ |
952 | |
953 | chs_sects = id[ATA_ID_CYLS] * id[ATA_ID_HEADS] * id[ATA_ID_SECTORS]; | |
954 | ||
955 | /* perform a rough sanity check on lba_sects: within 10% is OK */ | |
956 | if (lba_sects - chs_sects < chs_sects/10) | |
4dce8ba9 | 957 | return true; |
a02227c9 BZ |
958 | |
959 | /* some drives have the word order reversed */ | |
960 | head = (lba_sects >> 16) & 0xffff; | |
961 | tail = lba_sects & 0xffff; | |
962 | lba_sects = head | (tail << 16); | |
963 | ||
964 | if (lba_sects - chs_sects < chs_sects/10) { | |
965 | *(__le32 *)&id[ATA_ID_LBA_CAPACITY] = __cpu_to_le32(lba_sects); | |
4dce8ba9 | 966 | return true; /* LBA capacity is (now) good */ |
a02227c9 BZ |
967 | } |
968 | ||
4dce8ba9 | 969 | return false; /* LBA capacity value may be bad */ |
a02227c9 BZ |
970 | } |
971 | ||
93734a23 BZ |
972 | static inline void ata_id_to_hd_driveid(u16 *id) |
973 | { | |
974 | #ifdef __BIG_ENDIAN | |
975 | /* accessed in struct hd_driveid as 8-bit values */ | |
976 | id[ATA_ID_MAX_MULTSECT] = __cpu_to_le16(id[ATA_ID_MAX_MULTSECT]); | |
977 | id[ATA_ID_CAPABILITY] = __cpu_to_le16(id[ATA_ID_CAPABILITY]); | |
978 | id[ATA_ID_OLD_PIO_MODES] = __cpu_to_le16(id[ATA_ID_OLD_PIO_MODES]); | |
979 | id[ATA_ID_OLD_DMA_MODES] = __cpu_to_le16(id[ATA_ID_OLD_DMA_MODES]); | |
980 | id[ATA_ID_MULTSECT] = __cpu_to_le16(id[ATA_ID_MULTSECT]); | |
981 | ||
982 | /* as 32-bit values */ | |
983 | *(u32 *)&id[ATA_ID_LBA_CAPACITY] = ata_id_u32(id, ATA_ID_LBA_CAPACITY); | |
984 | *(u32 *)&id[ATA_ID_SPG] = ata_id_u32(id, ATA_ID_SPG); | |
985 | ||
986 | /* as 64-bit value */ | |
987 | *(u64 *)&id[ATA_ID_LBA_CAPACITY_2] = | |
988 | ata_id_u64(id, ATA_ID_LBA_CAPACITY_2); | |
989 | #endif | |
990 | } | |
991 | ||
0c659b82 | 992 | /* |
d0634c4a MP |
993 | * Write LBA Range Entries to the buffer that will cover the extent from |
994 | * sector to sector + count. This is used for TRIM and for ADD LBA(S) | |
995 | * TO NV CACHE PINNED SET. | |
0c659b82 | 996 | */ |
d0634c4a MP |
997 | static inline unsigned ata_set_lba_range_entries(void *_buffer, |
998 | unsigned buf_size, u64 sector, unsigned long count) | |
0c659b82 MW |
999 | { |
1000 | __le64 *buffer = _buffer; | |
d0634c4a | 1001 | unsigned i = 0, used_bytes; |
0c659b82 | 1002 | |
d0634c4a | 1003 | while (i < buf_size / 8 ) { /* 6-byte LBA + 2-byte range per entry */ |
0c659b82 MW |
1004 | u64 entry = sector | |
1005 | ((u64)(count > 0xffff ? 0xffff : count) << 48); | |
1006 | buffer[i++] = __cpu_to_le64(entry); | |
1007 | if (count <= 0xffff) | |
1008 | break; | |
1009 | count -= 0xffff; | |
1010 | sector += 0xffff; | |
1011 | } | |
1012 | ||
d0634c4a MP |
1013 | used_bytes = ALIGN(i * 8, 512); |
1014 | memset(buffer + i, 0, used_bytes - i * 8); | |
1015 | return used_bytes; | |
0c659b82 MW |
1016 | } |
1017 | ||
4dce8ba9 | 1018 | static inline bool ata_ok(u8 status) |
1da177e4 LT |
1019 | { |
1020 | return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR)) | |
1021 | == ATA_DRDY); | |
1022 | } | |
1023 | ||
4dce8ba9 | 1024 | static inline bool lba_28_ok(u64 block, u32 n_block) |
c6a33e24 | 1025 | { |
45c4d015 ML |
1026 | /* check the ending block number: must be LESS THAN 0x0fffffff */ |
1027 | return ((block + n_block) < ((1 << 28) - 1)) && (n_block <= 256); | |
c6a33e24 AL |
1028 | } |
1029 | ||
4dce8ba9 | 1030 | static inline bool lba_48_ok(u64 block, u32 n_block) |
c6a33e24 AL |
1031 | { |
1032 | /* check the ending block number */ | |
1033 | return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= 65536); | |
1034 | } | |
1035 | ||
814600ee TH |
1036 | #define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff) |
1037 | #define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16) | |
1038 | #define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff) | |
1039 | #define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf) | |
1040 | ||
1da177e4 | 1041 | #endif /* __LINUX_ATA_H__ */ |