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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 JG |
47 | ATA_MAX_SECTORS = 256, |
48 | ATA_MAX_SECTORS_LBA48 = 65535,/* TODO: 65536? */ | |
f8d8e579 | 49 | ATA_MAX_SECTORS_TAPE = 65535, |
1da177e4 LT |
50 | |
51 | ATA_ID_WORDS = 256, | |
37014c64 BZ |
52 | ATA_ID_CONFIG = 0, |
53 | ATA_ID_CYLS = 1, | |
54 | ATA_ID_HEADS = 3, | |
55 | ATA_ID_SECTORS = 6, | |
a0cf733b | 56 | ATA_ID_SERNO = 10, |
37014c64 | 57 | ATA_ID_BUF_SIZE = 21, |
a0cf733b TH |
58 | ATA_ID_FW_REV = 23, |
59 | ATA_ID_PROD = 27, | |
37014c64 BZ |
60 | ATA_ID_MAX_MULTSECT = 47, |
61 | ATA_ID_DWORD_IO = 48, | |
62 | ATA_ID_CAPABILITY = 49, | |
11e29e21 | 63 | ATA_ID_OLD_PIO_MODES = 51, |
37014c64 | 64 | ATA_ID_OLD_DMA_MODES = 52, |
11e29e21 | 65 | ATA_ID_FIELD_VALID = 53, |
37014c64 BZ |
66 | ATA_ID_CUR_CYLS = 54, |
67 | ATA_ID_CUR_HEADS = 55, | |
68 | ATA_ID_CUR_SECTORS = 56, | |
69 | ATA_ID_MULTSECT = 59, | |
70 | ATA_ID_LBA_CAPACITY = 60, | |
71 | ATA_ID_SWDMA_MODES = 62, | |
1da177e4 | 72 | ATA_ID_MWDMA_MODES = 63, |
11e29e21 AC |
73 | ATA_ID_PIO_MODES = 64, |
74 | ATA_ID_EIDE_DMA_MIN = 65, | |
37014c64 | 75 | ATA_ID_EIDE_DMA_TIME = 66, |
11e29e21 AC |
76 | ATA_ID_EIDE_PIO = 67, |
77 | ATA_ID_EIDE_PIO_IORDY = 68, | |
e78db4df | 78 | ATA_ID_ADDITIONAL_SUPP = 69, |
37014c64 | 79 | ATA_ID_QUEUE_DEPTH = 75, |
11e29e21 | 80 | ATA_ID_MAJOR_VER = 80, |
37014c64 BZ |
81 | ATA_ID_COMMAND_SET_1 = 82, |
82 | ATA_ID_COMMAND_SET_2 = 83, | |
83 | ATA_ID_CFSSE = 84, | |
84 | ATA_ID_CFS_ENABLE_1 = 85, | |
85 | ATA_ID_CFS_ENABLE_2 = 86, | |
86 | ATA_ID_CSF_DEFAULT = 87, | |
87 | ATA_ID_UDMA_MODES = 88, | |
88 | ATA_ID_HW_CONFIG = 93, | |
89 | ATA_ID_SPG = 98, | |
90 | ATA_ID_LBA_CAPACITY_2 = 100, | |
18f0f978 | 91 | ATA_ID_SECTOR_SIZE = 106, |
295124dc | 92 | ATA_ID_LOGICAL_SECTOR_SIZE = 117, /* and 118 */ |
37014c64 BZ |
93 | ATA_ID_LAST_LUN = 126, |
94 | ATA_ID_DLF = 128, | |
95 | ATA_ID_CSFO = 129, | |
96 | ATA_ID_CFA_POWER = 160, | |
d42ad15b SS |
97 | ATA_ID_CFA_KEY_MGMT = 162, |
98 | ATA_ID_CFA_MODES = 163, | |
0c659b82 | 99 | ATA_ID_DATA_SET_MGMT = 169, |
8bff7c6b | 100 | ATA_ID_ROT_SPEED = 217, |
1da177e4 LT |
101 | ATA_ID_PIO4 = (1 << 1), |
102 | ||
a0cf733b TH |
103 | ATA_ID_SERNO_LEN = 20, |
104 | ATA_ID_FW_REV_LEN = 8, | |
105 | ATA_ID_PROD_LEN = 40, | |
106 | ||
1da177e4 | 107 | ATA_PCI_CTL_OFS = 2, |
4099d143 BZ |
108 | |
109 | ATA_PIO0 = (1 << 0), | |
110 | ATA_PIO1 = ATA_PIO0 | (1 << 1), | |
111 | ATA_PIO2 = ATA_PIO1 | (1 << 2), | |
112 | ATA_PIO3 = ATA_PIO2 | (1 << 3), | |
113 | ATA_PIO4 = ATA_PIO3 | (1 << 4), | |
114 | ATA_PIO5 = ATA_PIO4 | (1 << 5), | |
115 | ATA_PIO6 = ATA_PIO5 | (1 << 6), | |
116 | ||
22ddbd1e EIB |
117 | ATA_PIO4_ONLY = (1 << 4), |
118 | ||
91a6d4ed BZ |
119 | ATA_SWDMA0 = (1 << 0), |
120 | ATA_SWDMA1 = ATA_SWDMA0 | (1 << 1), | |
121 | ATA_SWDMA2 = ATA_SWDMA1 | (1 << 2), | |
122 | ||
123 | ATA_SWDMA2_ONLY = (1 << 2), | |
124 | ||
125 | ATA_MWDMA0 = (1 << 0), | |
126 | ATA_MWDMA1 = ATA_MWDMA0 | (1 << 1), | |
127 | ATA_MWDMA2 = ATA_MWDMA1 | (1 << 2), | |
22ddbd1e EIB |
128 | ATA_MWDMA3 = ATA_MWDMA2 | (1 << 3), |
129 | ATA_MWDMA4 = ATA_MWDMA3 | (1 << 4), | |
91a6d4ed BZ |
130 | |
131 | ATA_MWDMA12_ONLY = (1 << 1) | (1 << 2), | |
132 | ATA_MWDMA2_ONLY = (1 << 2), | |
133 | ||
1da177e4 LT |
134 | ATA_UDMA0 = (1 << 0), |
135 | ATA_UDMA1 = ATA_UDMA0 | (1 << 1), | |
136 | ATA_UDMA2 = ATA_UDMA1 | (1 << 2), | |
137 | ATA_UDMA3 = ATA_UDMA2 | (1 << 3), | |
138 | ATA_UDMA4 = ATA_UDMA3 | (1 << 4), | |
139 | ATA_UDMA5 = ATA_UDMA4 | (1 << 5), | |
140 | ATA_UDMA6 = ATA_UDMA5 | (1 << 6), | |
141 | ATA_UDMA7 = ATA_UDMA6 | (1 << 7), | |
142 | /* ATA_UDMA7 is just for completeness... doesn't exist (yet?). */ | |
143 | ||
22ddbd1e EIB |
144 | ATA_UDMA24_ONLY = (1 << 2) | (1 << 4), |
145 | ||
1da177e4 LT |
146 | ATA_UDMA_MASK_40C = ATA_UDMA2, /* udma0-2 */ |
147 | ||
148 | /* DMA-related */ | |
149 | ATA_PRD_SZ = 8, | |
150 | ATA_PRD_TBL_SZ = (ATA_MAX_PRD * ATA_PRD_SZ), | |
151 | ATA_PRD_EOT = (1 << 31), /* end-of-table flag */ | |
152 | ||
153 | ATA_DMA_TABLE_OFS = 4, | |
154 | ATA_DMA_STATUS = 2, | |
155 | ATA_DMA_CMD = 0, | |
156 | ATA_DMA_WR = (1 << 3), | |
157 | ATA_DMA_START = (1 << 0), | |
158 | ATA_DMA_INTR = (1 << 2), | |
159 | ATA_DMA_ERR = (1 << 1), | |
160 | ATA_DMA_ACTIVE = (1 << 0), | |
161 | ||
162 | /* bits in ATA command block registers */ | |
163 | ATA_HOB = (1 << 7), /* LBA48 selector */ | |
164 | ATA_NIEN = (1 << 1), /* disable-irq flag */ | |
165 | ATA_LBA = (1 << 6), /* LBA28 selector */ | |
166 | ATA_DEV1 = (1 << 4), /* Select Device 1 (slave) */ | |
167 | ATA_DEVICE_OBS = (1 << 7) | (1 << 5), /* obs bits in dev reg */ | |
168 | ATA_DEVCTL_OBS = (1 << 3), /* obsolete bit in devctl reg */ | |
169 | ATA_BUSY = (1 << 7), /* BSY status bit */ | |
170 | ATA_DRDY = (1 << 6), /* device ready */ | |
171 | ATA_DF = (1 << 5), /* device fault */ | |
b5911620 | 172 | ATA_DSC = (1 << 4), /* drive seek complete */ |
1da177e4 | 173 | ATA_DRQ = (1 << 3), /* data request i/o */ |
b5911620 BZ |
174 | ATA_CORR = (1 << 2), /* corrected data error */ |
175 | ATA_IDX = (1 << 1), /* index */ | |
1da177e4 LT |
176 | ATA_ERR = (1 << 0), /* have an error */ |
177 | ATA_SRST = (1 << 2), /* software reset */ | |
9be1e979 | 178 | ATA_ICRC = (1 << 7), /* interface CRC error */ |
b5911620 | 179 | ATA_BBK = ATA_ICRC, /* pre-EIDE: block marked bad */ |
9be1e979 | 180 | ATA_UNC = (1 << 6), /* uncorrectable media error */ |
b5911620 | 181 | ATA_MC = (1 << 5), /* media changed */ |
9be1e979 | 182 | ATA_IDNF = (1 << 4), /* ID not found */ |
b5911620 | 183 | ATA_MCR = (1 << 3), /* media change requested */ |
1da177e4 | 184 | ATA_ABORTED = (1 << 2), /* command aborted */ |
b5911620 BZ |
185 | ATA_TRK0NF = (1 << 1), /* track 0 not found */ |
186 | ATA_AMNF = (1 << 0), /* address mark not found */ | |
187 | ATAPI_LFS = 0xF0, /* last failed sense */ | |
188 | ATAPI_EOM = ATA_TRK0NF, /* end of media */ | |
189 | ATAPI_ILI = ATA_AMNF, /* illegal length indication */ | |
190 | ATAPI_IO = (1 << 1), | |
191 | ATAPI_COD = (1 << 0), | |
1da177e4 LT |
192 | |
193 | /* ATA command block registers */ | |
194 | ATA_REG_DATA = 0x00, | |
195 | ATA_REG_ERR = 0x01, | |
196 | ATA_REG_NSECT = 0x02, | |
197 | ATA_REG_LBAL = 0x03, | |
198 | ATA_REG_LBAM = 0x04, | |
199 | ATA_REG_LBAH = 0x05, | |
200 | ATA_REG_DEVICE = 0x06, | |
201 | ATA_REG_STATUS = 0x07, | |
202 | ||
203 | ATA_REG_FEATURE = ATA_REG_ERR, /* and their aliases */ | |
204 | ATA_REG_CMD = ATA_REG_STATUS, | |
205 | ATA_REG_BYTEL = ATA_REG_LBAM, | |
206 | ATA_REG_BYTEH = ATA_REG_LBAH, | |
207 | ATA_REG_DEVSEL = ATA_REG_DEVICE, | |
208 | ATA_REG_IRQ = ATA_REG_NSECT, | |
209 | ||
210 | /* ATA device commands */ | |
ab2181cf | 211 | ATA_CMD_DEV_RESET = 0x08, /* ATAPI device reset */ |
1da177e4 | 212 | ATA_CMD_CHK_POWER = 0xE5, /* check power mode */ |
972dcafb DG |
213 | ATA_CMD_STANDBY = 0xE2, /* place in standby power mode */ |
214 | ATA_CMD_IDLE = 0xE3, /* place in idle power mode */ | |
1da177e4 | 215 | ATA_CMD_EDD = 0x90, /* execute device diagnostic */ |
6521148c RH |
216 | ATA_CMD_DOWNLOAD_MICRO = 0x92, |
217 | ATA_CMD_NOP = 0x00, | |
1da177e4 LT |
218 | ATA_CMD_FLUSH = 0xE7, |
219 | ATA_CMD_FLUSH_EXT = 0xEA, | |
220 | ATA_CMD_ID_ATA = 0xEC, | |
221 | ATA_CMD_ID_ATAPI = 0xA1, | |
6521148c | 222 | ATA_CMD_SERVICE = 0xA2, |
1da177e4 LT |
223 | ATA_CMD_READ = 0xC8, |
224 | ATA_CMD_READ_EXT = 0x25, | |
6521148c RH |
225 | ATA_CMD_READ_QUEUED = 0x26, |
226 | ATA_CMD_READ_STREAM_EXT = 0x2B, | |
227 | ATA_CMD_READ_STREAM_DMA_EXT = 0x2A, | |
1da177e4 LT |
228 | ATA_CMD_WRITE = 0xCA, |
229 | ATA_CMD_WRITE_EXT = 0x35, | |
6521148c RH |
230 | ATA_CMD_WRITE_QUEUED = 0x36, |
231 | ATA_CMD_WRITE_STREAM_EXT = 0x3B, | |
232 | ATA_CMD_WRITE_STREAM_DMA_EXT = 0x3A, | |
9a3dccc4 | 233 | ATA_CMD_WRITE_FUA_EXT = 0x3D, |
6521148c | 234 | ATA_CMD_WRITE_QUEUED_FUA_EXT = 0x3E, |
88e49034 TH |
235 | ATA_CMD_FPDMA_READ = 0x60, |
236 | ATA_CMD_FPDMA_WRITE = 0x61, | |
1da177e4 LT |
237 | ATA_CMD_PIO_READ = 0x20, |
238 | ATA_CMD_PIO_READ_EXT = 0x24, | |
239 | ATA_CMD_PIO_WRITE = 0x30, | |
240 | ATA_CMD_PIO_WRITE_EXT = 0x34, | |
8cbd6df1 AL |
241 | ATA_CMD_READ_MULTI = 0xC4, |
242 | ATA_CMD_READ_MULTI_EXT = 0x29, | |
243 | ATA_CMD_WRITE_MULTI = 0xC5, | |
244 | ATA_CMD_WRITE_MULTI_EXT = 0x39, | |
9a3dccc4 | 245 | ATA_CMD_WRITE_MULTI_FUA_EXT = 0xCE, |
1da177e4 | 246 | ATA_CMD_SET_FEATURES = 0xEF, |
2c3d2a46 | 247 | ATA_CMD_SET_MULTI = 0xC6, |
1da177e4 LT |
248 | ATA_CMD_PACKET = 0xA0, |
249 | ATA_CMD_VERIFY = 0x40, | |
250 | ATA_CMD_VERIFY_EXT = 0x42, | |
6521148c | 251 | ATA_CMD_WRITE_UNCORR_EXT = 0x45, |
2dcb407e JG |
252 | ATA_CMD_STANDBYNOW1 = 0xE0, |
253 | ATA_CMD_IDLEIMMEDIATE = 0xE1, | |
054a5fba | 254 | ATA_CMD_SLEEP = 0xE6, |
8bf62ece | 255 | ATA_CMD_INIT_DEV_PARAMS = 0x91, |
b6782728 AC |
256 | ATA_CMD_READ_NATIVE_MAX = 0xF8, |
257 | ATA_CMD_READ_NATIVE_MAX_EXT = 0x27, | |
1e999736 AC |
258 | ATA_CMD_SET_MAX = 0xF9, |
259 | ATA_CMD_SET_MAX_EXT = 0x37, | |
6521148c RH |
260 | ATA_CMD_READ_LOG_EXT = 0x2F, |
261 | ATA_CMD_WRITE_LOG_EXT = 0x3F, | |
262 | ATA_CMD_READ_LOG_DMA_EXT = 0x47, | |
263 | ATA_CMD_WRITE_LOG_DMA_EXT = 0x57, | |
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 TH |
268 | ATA_CMD_PMP_READ = 0xE4, |
269 | ATA_CMD_PMP_WRITE = 0xE8, | |
ce2e0abb | 270 | ATA_CMD_CONF_OVERLAY = 0xB1, |
6521148c RH |
271 | ATA_CMD_SEC_SET_PASS = 0xF1, |
272 | ATA_CMD_SEC_UNLOCK = 0xF2, | |
273 | ATA_CMD_SEC_ERASE_PREP = 0xF3, | |
274 | ATA_CMD_SEC_ERASE_UNIT = 0xF4, | |
ce2e0abb | 275 | ATA_CMD_SEC_FREEZE_LOCK = 0xF5, |
6521148c RH |
276 | ATA_CMD_SEC_DISABLE_PASS = 0xF6, |
277 | ATA_CMD_CONFIG_STREAM = 0x51, | |
476d9894 BZ |
278 | ATA_CMD_SMART = 0xB0, |
279 | ATA_CMD_MEDIA_LOCK = 0xDE, | |
280 | ATA_CMD_MEDIA_UNLOCK = 0xDF, | |
0c659b82 | 281 | ATA_CMD_DSM = 0x06, |
6521148c RH |
282 | ATA_CMD_CHK_MED_CRD_TYP = 0xD1, |
283 | ATA_CMD_CFA_REQ_EXT_ERR = 0x03, | |
284 | ATA_CMD_CFA_WRITE_NE = 0x38, | |
285 | ATA_CMD_CFA_TRANS_SECT = 0x87, | |
286 | ATA_CMD_CFA_ERASE = 0xC0, | |
287 | ATA_CMD_CFA_WRITE_MULT_NE = 0xCD, | |
476d9894 BZ |
288 | /* marked obsolete in the ATA/ATAPI-7 spec */ |
289 | ATA_CMD_RESTORE = 0x10, | |
88e49034 TH |
290 | |
291 | /* READ_LOG_EXT pages */ | |
292 | ATA_LOG_SATA_NCQ = 0x10, | |
1da177e4 | 293 | |
5a5dbd18 ML |
294 | /* READ/WRITE LONG (obsolete) */ |
295 | ATA_CMD_READ_LONG = 0x22, | |
296 | ATA_CMD_READ_LONG_ONCE = 0x23, | |
297 | ATA_CMD_WRITE_LONG = 0x32, | |
298 | ATA_CMD_WRITE_LONG_ONCE = 0x33, | |
299 | ||
1da177e4 LT |
300 | /* SETFEATURES stuff */ |
301 | SETFEATURES_XFER = 0x03, | |
302 | XFER_UDMA_7 = 0x47, | |
303 | XFER_UDMA_6 = 0x46, | |
304 | XFER_UDMA_5 = 0x45, | |
305 | XFER_UDMA_4 = 0x44, | |
306 | XFER_UDMA_3 = 0x43, | |
307 | XFER_UDMA_2 = 0x42, | |
308 | XFER_UDMA_1 = 0x41, | |
309 | XFER_UDMA_0 = 0x40, | |
b352e57d AC |
310 | XFER_MW_DMA_4 = 0x24, /* CFA only */ |
311 | XFER_MW_DMA_3 = 0x23, /* CFA only */ | |
1da177e4 LT |
312 | XFER_MW_DMA_2 = 0x22, |
313 | XFER_MW_DMA_1 = 0x21, | |
314 | XFER_MW_DMA_0 = 0x20, | |
b4b52db7 AC |
315 | XFER_SW_DMA_2 = 0x12, |
316 | XFER_SW_DMA_1 = 0x11, | |
317 | XFER_SW_DMA_0 = 0x10, | |
b352e57d AC |
318 | XFER_PIO_6 = 0x0E, /* CFA only */ |
319 | XFER_PIO_5 = 0x0D, /* CFA only */ | |
1da177e4 LT |
320 | XFER_PIO_4 = 0x0C, |
321 | XFER_PIO_3 = 0x0B, | |
322 | XFER_PIO_2 = 0x0A, | |
323 | XFER_PIO_1 = 0x09, | |
324 | XFER_PIO_0 = 0x08, | |
1da177e4 LT |
325 | XFER_PIO_SLOW = 0x00, |
326 | ||
3057ac3c | 327 | SETFEATURES_WC_ON = 0x02, /* Enable write cache */ |
328 | SETFEATURES_WC_OFF = 0x82, /* Disable write cache */ | |
329 | ||
476d9894 BZ |
330 | /* Enable/Disable Automatic Acoustic Management */ |
331 | SETFEATURES_AAM_ON = 0x42, | |
332 | SETFEATURES_AAM_OFF = 0xC2, | |
333 | ||
169439c2 ML |
334 | SETFEATURES_SPINUP = 0x07, /* Spin-up drive */ |
335 | ||
9f45cbd3 KCA |
336 | SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */ |
337 | SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */ | |
338 | ||
339 | /* SETFEATURE Sector counts for SATA features */ | |
fa5b561c | 340 | SATA_FPDMA_OFFSET = 0x01, /* FPDMA non-zero buffer offsets */ |
f1bce7f8 TH |
341 | SATA_FPDMA_AA = 0x02, /* FPDMA Setup FIS Auto-Activate */ |
342 | SATA_DIPM = 0x03, /* Device Initiated Power Management */ | |
fa5b561c | 343 | SATA_FPDMA_IN_ORDER = 0x04, /* FPDMA in-order data delivery */ |
f1bce7f8 | 344 | SATA_AN = 0x05, /* Asynchronous Notification */ |
fa5b561c | 345 | SATA_SSP = 0x06, /* Software Settings Preservation */ |
9f45cbd3 | 346 | |
ce2e0abb TH |
347 | /* feature values for SET_MAX */ |
348 | ATA_SET_MAX_ADDR = 0x00, | |
349 | ATA_SET_MAX_PASSWD = 0x01, | |
350 | ATA_SET_MAX_LOCK = 0x02, | |
351 | ATA_SET_MAX_UNLOCK = 0x03, | |
352 | ATA_SET_MAX_FREEZE_LOCK = 0x04, | |
353 | ||
354 | /* feature values for DEVICE CONFIGURATION OVERLAY */ | |
355 | ATA_DCO_RESTORE = 0xC0, | |
356 | ATA_DCO_FREEZE_LOCK = 0xC1, | |
357 | ATA_DCO_IDENTIFY = 0xC2, | |
358 | ATA_DCO_SET = 0xC3, | |
359 | ||
476d9894 BZ |
360 | /* feature values for SMART */ |
361 | ATA_SMART_ENABLE = 0xD8, | |
362 | ATA_SMART_READ_VALUES = 0xD0, | |
363 | ATA_SMART_READ_THRESHOLDS = 0xD1, | |
364 | ||
0c659b82 MW |
365 | /* feature values for Data Set Management */ |
366 | ATA_DSM_TRIM = 0x01, | |
367 | ||
476d9894 BZ |
368 | /* password used in LBA Mid / LBA High for executing SMART commands */ |
369 | ATA_SMART_LBAM_PASS = 0x4F, | |
370 | ATA_SMART_LBAH_PASS = 0xC2, | |
371 | ||
1da177e4 LT |
372 | /* ATAPI stuff */ |
373 | ATAPI_PKT_DMA = (1 << 0), | |
374 | ATAPI_DMADIR = (1 << 2), /* ATAPI data dir: | |
375 | 0=to device, 1=to host */ | |
376 | ATAPI_CDB_LEN = 16, | |
377 | ||
814600ee TH |
378 | /* PMP stuff */ |
379 | SATA_PMP_MAX_PORTS = 15, | |
380 | SATA_PMP_CTRL_PORT = 15, | |
381 | ||
382 | SATA_PMP_GSCR_DWORDS = 128, | |
383 | SATA_PMP_GSCR_PROD_ID = 0, | |
384 | SATA_PMP_GSCR_REV = 1, | |
385 | SATA_PMP_GSCR_PORT_INFO = 2, | |
386 | SATA_PMP_GSCR_ERROR = 32, | |
387 | SATA_PMP_GSCR_ERROR_EN = 33, | |
388 | SATA_PMP_GSCR_FEAT = 64, | |
389 | SATA_PMP_GSCR_FEAT_EN = 96, | |
390 | ||
391 | SATA_PMP_PSCR_STATUS = 0, | |
392 | SATA_PMP_PSCR_ERROR = 1, | |
393 | SATA_PMP_PSCR_CONTROL = 2, | |
394 | ||
395 | SATA_PMP_FEAT_BIST = (1 << 0), | |
396 | SATA_PMP_FEAT_PMREQ = (1 << 1), | |
397 | SATA_PMP_FEAT_DYNSSC = (1 << 2), | |
398 | SATA_PMP_FEAT_NOTIFY = (1 << 3), | |
399 | ||
1da177e4 LT |
400 | /* cable types */ |
401 | ATA_CBL_NONE = 0, | |
402 | ATA_CBL_PATA40 = 1, | |
403 | ATA_CBL_PATA80 = 2, | |
c88f90c3 TH |
404 | ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */ |
405 | ATA_CBL_PATA_UNK = 4, /* don't know, maybe 80c? */ | |
406 | ATA_CBL_PATA_IGN = 5, /* don't know, ignore cable handling */ | |
407 | ATA_CBL_SATA = 6, | |
1da177e4 LT |
408 | |
409 | /* SATA Status and Control Registers */ | |
410 | SCR_STATUS = 0, | |
411 | SCR_ERROR = 1, | |
412 | SCR_CONTROL = 2, | |
413 | SCR_ACTIVE = 3, | |
414 | SCR_NOTIFICATION = 4, | |
415 | ||
9be1e979 TH |
416 | /* SError bits */ |
417 | SERR_DATA_RECOVERED = (1 << 0), /* recovered data error */ | |
418 | SERR_COMM_RECOVERED = (1 << 1), /* recovered comm failure */ | |
419 | SERR_DATA = (1 << 8), /* unrecovered data error */ | |
420 | SERR_PERSISTENT = (1 << 9), /* persistent data/comm error */ | |
421 | SERR_PROTOCOL = (1 << 10), /* protocol violation */ | |
422 | SERR_INTERNAL = (1 << 11), /* host internal error */ | |
423 | SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */ | |
1333e194 RH |
424 | SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */ |
425 | SERR_COMM_WAKE = (1 << 18), /* Comm wake */ | |
426 | SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */ | |
427 | SERR_DISPARITY = (1 << 20), /* Disparity */ | |
428 | SERR_CRC = (1 << 21), /* CRC error */ | |
429 | SERR_HANDSHAKE = (1 << 22), /* Handshake error */ | |
430 | SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */ | |
431 | SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */ | |
432 | SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */ | |
9be1e979 TH |
433 | SERR_DEV_XCHG = (1 << 26), /* device exchanged */ |
434 | ||
1da177e4 LT |
435 | /* struct ata_taskfile flags */ |
436 | ATA_TFLAG_LBA48 = (1 << 0), /* enable 48-bit LBA and "HOB" */ | |
437 | ATA_TFLAG_ISADDR = (1 << 1), /* enable r/w to nsect/lba regs */ | |
438 | ATA_TFLAG_DEVICE = (1 << 2), /* enable r/w to device reg */ | |
439 | ATA_TFLAG_WRITE = (1 << 3), /* data dir: host->dev==1 (write) */ | |
8bf62ece | 440 | ATA_TFLAG_LBA = (1 << 4), /* enable LBA */ |
9a3dccc4 | 441 | ATA_TFLAG_FUA = (1 << 5), /* enable FUA */ |
ea9b395f | 442 | ATA_TFLAG_POLLING = (1 << 6), /* set nIEN to 1 and use polling */ |
405e66b3 TH |
443 | |
444 | /* protocol flags */ | |
445 | ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */ | |
446 | ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */ | |
447 | ATA_PROT_FLAG_DATA = ATA_PROT_FLAG_PIO | ATA_PROT_FLAG_DMA, | |
448 | ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */ | |
449 | ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */ | |
1da177e4 LT |
450 | }; |
451 | ||
452 | enum ata_tf_protocols { | |
453 | /* ATA taskfile protocols */ | |
454 | ATA_PROT_UNKNOWN, /* unknown/invalid */ | |
455 | ATA_PROT_NODATA, /* no data */ | |
1dce589c | 456 | ATA_PROT_PIO, /* PIO data xfer */ |
1da177e4 | 457 | ATA_PROT_DMA, /* DMA */ |
88e49034 | 458 | ATA_PROT_NCQ, /* NCQ */ |
0dc36888 TH |
459 | ATAPI_PROT_NODATA, /* packet command, no data */ |
460 | ATAPI_PROT_PIO, /* packet command, PIO data xfer*/ | |
461 | ATAPI_PROT_DMA, /* packet command with special DMA sauce */ | |
1da177e4 LT |
462 | }; |
463 | ||
464 | enum ata_ioctls { | |
465 | ATA_IOC_GET_IO32 = 0x309, | |
466 | ATA_IOC_SET_IO32 = 0x324, | |
467 | }; | |
468 | ||
469 | /* core structures */ | |
470 | ||
f60d7011 | 471 | struct ata_bmdma_prd { |
4ca4e439 AV |
472 | __le32 addr; |
473 | __le32 flags_len; | |
1da177e4 LT |
474 | }; |
475 | ||
476 | struct ata_taskfile { | |
477 | unsigned long flags; /* ATA_TFLAG_xxx */ | |
478 | u8 protocol; /* ATA_PROT_xxx */ | |
479 | ||
480 | u8 ctl; /* control reg */ | |
481 | ||
482 | u8 hob_feature; /* additional data */ | |
483 | u8 hob_nsect; /* to support LBA48 */ | |
484 | u8 hob_lbal; | |
485 | u8 hob_lbam; | |
486 | u8 hob_lbah; | |
487 | ||
488 | u8 feature; | |
489 | u8 nsect; | |
490 | u8 lbal; | |
491 | u8 lbam; | |
492 | u8 lbah; | |
493 | ||
494 | u8 device; | |
495 | ||
496 | u8 command; /* IO operation */ | |
497 | }; | |
498 | ||
405e66b3 TH |
499 | /* |
500 | * protocol tests | |
501 | */ | |
502 | static inline unsigned int ata_prot_flags(u8 prot) | |
503 | { | |
504 | switch (prot) { | |
505 | case ATA_PROT_NODATA: | |
506 | return 0; | |
507 | case ATA_PROT_PIO: | |
508 | return ATA_PROT_FLAG_PIO; | |
509 | case ATA_PROT_DMA: | |
510 | return ATA_PROT_FLAG_DMA; | |
511 | case ATA_PROT_NCQ: | |
512 | return ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ; | |
0dc36888 | 513 | case ATAPI_PROT_NODATA: |
405e66b3 | 514 | return ATA_PROT_FLAG_ATAPI; |
0dc36888 | 515 | case ATAPI_PROT_PIO: |
405e66b3 | 516 | return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO; |
0dc36888 | 517 | case ATAPI_PROT_DMA: |
405e66b3 TH |
518 | return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA; |
519 | } | |
520 | return 0; | |
521 | } | |
522 | ||
523 | static inline int ata_is_atapi(u8 prot) | |
524 | { | |
525 | return ata_prot_flags(prot) & ATA_PROT_FLAG_ATAPI; | |
526 | } | |
527 | ||
528 | static inline int ata_is_nodata(u8 prot) | |
529 | { | |
530 | return !(ata_prot_flags(prot) & ATA_PROT_FLAG_DATA); | |
531 | } | |
532 | ||
533 | static inline int ata_is_pio(u8 prot) | |
534 | { | |
535 | return ata_prot_flags(prot) & ATA_PROT_FLAG_PIO; | |
536 | } | |
537 | ||
538 | static inline int ata_is_dma(u8 prot) | |
539 | { | |
540 | return ata_prot_flags(prot) & ATA_PROT_FLAG_DMA; | |
541 | } | |
542 | ||
543 | static inline int ata_is_ncq(u8 prot) | |
544 | { | |
545 | return ata_prot_flags(prot) & ATA_PROT_FLAG_NCQ; | |
546 | } | |
547 | ||
548 | static inline int ata_is_data(u8 prot) | |
549 | { | |
550 | return ata_prot_flags(prot) & ATA_PROT_FLAG_DATA; | |
551 | } | |
552 | ||
553 | /* | |
554 | * id tests | |
555 | */ | |
37014c64 BZ |
556 | #define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0) |
557 | #define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9)) | |
558 | #define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (1 << 8)) | |
88e49034 | 559 | #define ata_id_has_ncq(id) ((id)[76] & (1 << 8)) |
37014c64 BZ |
560 | #define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1) |
561 | #define ata_id_removeable(id) ((id)[ATA_ID_CONFIG] & (1 << 7)) | |
854c73a2 | 562 | #define ata_id_has_atapi_AN(id) \ |
9f45cbd3 KCA |
563 | ( (((id)[76] != 0x0000) && ((id)[76] != 0xffff)) && \ |
564 | ((id)[78] & (1 << 5)) ) | |
388539f3 SL |
565 | #define ata_id_has_fpdma_aa(id) \ |
566 | ( (((id)[76] != 0x0000) && ((id)[76] != 0xffff)) && \ | |
567 | ((id)[78] & (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) |
312f7da2 | 579 | |
ca77329f KCA |
580 | static inline bool ata_id_has_hipm(const u16 *id) |
581 | { | |
582 | u16 val = id[76]; | |
583 | ||
584 | if (val == 0 || val == 0xffff) | |
585 | return false; | |
586 | ||
587 | return val & (1 << 9); | |
588 | } | |
589 | ||
590 | static inline bool ata_id_has_dipm(const u16 *id) | |
591 | { | |
592 | u16 val = id[78]; | |
593 | ||
594 | if (val == 0 || val == 0xffff) | |
595 | return false; | |
596 | ||
597 | return val & (1 << 3); | |
598 | } | |
599 | ||
ae8d4ee7 | 600 | |
c7293870 AC |
601 | static inline int ata_id_has_fua(const u16 *id) |
602 | { | |
37014c64 | 603 | if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000) |
c7293870 | 604 | return 0; |
37014c64 | 605 | return id[ATA_ID_CFSSE] & (1 << 6); |
c7293870 AC |
606 | } |
607 | ||
608 | static inline int ata_id_has_flush(const u16 *id) | |
609 | { | |
37014c64 | 610 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 611 | return 0; |
37014c64 | 612 | return id[ATA_ID_COMMAND_SET_2] & (1 << 12); |
c7293870 AC |
613 | } |
614 | ||
4b58f17d BZ |
615 | static inline int ata_id_flush_enabled(const u16 *id) |
616 | { | |
617 | if (ata_id_has_flush(id) == 0) | |
618 | return 0; | |
619 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) | |
620 | return 0; | |
621 | return id[ATA_ID_CFS_ENABLE_2] & (1 << 12); | |
622 | } | |
623 | ||
c7293870 AC |
624 | static inline int ata_id_has_flush_ext(const u16 *id) |
625 | { | |
37014c64 | 626 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 627 | return 0; |
37014c64 | 628 | return id[ATA_ID_COMMAND_SET_2] & (1 << 13); |
c7293870 AC |
629 | } |
630 | ||
ff2779b5 BZ |
631 | static inline int ata_id_flush_ext_enabled(const u16 *id) |
632 | { | |
633 | if (ata_id_has_flush_ext(id) == 0) | |
634 | return 0; | |
635 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) | |
636 | return 0; | |
637 | /* | |
638 | * some Maxtor disks have bit 13 defined incorrectly | |
639 | * so check bit 10 too | |
640 | */ | |
641 | return (id[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400; | |
642 | } | |
643 | ||
295124dc | 644 | static inline u32 ata_id_logical_sector_size(const u16 *id) |
18f0f978 | 645 | { |
295124dc GG |
646 | /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. |
647 | * IDENTIFY DEVICE data, word 117-118. | |
648 | * 0xd000 ignores bit 13 (logical:physical > 1) | |
649 | */ | |
650 | if ((id[ATA_ID_SECTOR_SIZE] & 0xd000) == 0x5000) | |
651 | return (((id[ATA_ID_LOGICAL_SECTOR_SIZE+1] << 16) | |
652 | + id[ATA_ID_LOGICAL_SECTOR_SIZE]) * sizeof(u16)) ; | |
653 | return ATA_SECT_SIZE; | |
654 | } | |
655 | ||
656 | static inline u8 ata_id_log2_per_physical_sector(const u16 *id) | |
657 | { | |
658 | /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. | |
659 | * IDENTIFY DEVICE data, word 106. | |
660 | * 0xe000 ignores bit 12 (logical sector > 512 bytes) | |
661 | */ | |
662 | if ((id[ATA_ID_SECTOR_SIZE] & 0xe000) == 0x6000) | |
663 | return (id[ATA_ID_SECTOR_SIZE] & 0xf); | |
664 | return 0; | |
18f0f978 CH |
665 | } |
666 | ||
295124dc GG |
667 | /* Offset of logical sectors relative to physical sectors. |
668 | * | |
669 | * If device has more than one logical sector per physical sector | |
670 | * (aka 512 byte emulation), vendors might offset the "sector 0" address | |
671 | * so sector 63 is "naturally aligned" - e.g. FAT partition table. | |
672 | * This avoids Read/Mod/Write penalties when using FAT partition table | |
673 | * and updating "well aligned" (FS perspective) physical sectors on every | |
674 | * transaction. | |
675 | */ | |
676 | static inline u16 ata_id_logical_sector_offset(const u16 *id, | |
677 | u8 log2_per_phys) | |
18f0f978 | 678 | { |
295124dc GG |
679 | u16 word_209 = id[209]; |
680 | ||
681 | if ((log2_per_phys > 1) && (word_209 & 0xc000) == 0x4000) { | |
682 | u16 first = word_209 & 0x3fff; | |
683 | if (first > 0) | |
684 | return (1 << log2_per_phys) - first; | |
685 | } | |
686 | return 0; | |
18f0f978 CH |
687 | } |
688 | ||
c7293870 AC |
689 | static inline int ata_id_has_lba48(const u16 *id) |
690 | { | |
37014c64 | 691 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 692 | return 0; |
37014c64 | 693 | if (!ata_id_u64(id, ATA_ID_LBA_CAPACITY_2)) |
17bd9a2f | 694 | return 0; |
37014c64 | 695 | return id[ATA_ID_COMMAND_SET_2] & (1 << 10); |
c7293870 AC |
696 | } |
697 | ||
942dcd85 BZ |
698 | static inline int ata_id_lba48_enabled(const u16 *id) |
699 | { | |
700 | if (ata_id_has_lba48(id) == 0) | |
701 | return 0; | |
702 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) | |
703 | return 0; | |
704 | return id[ATA_ID_CFS_ENABLE_2] & (1 << 10); | |
705 | } | |
706 | ||
c7293870 AC |
707 | static inline int ata_id_hpa_enabled(const u16 *id) |
708 | { | |
709 | /* Yes children, word 83 valid bits cover word 82 data */ | |
37014c64 | 710 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 AC |
711 | return 0; |
712 | /* And 87 covers 85-87 */ | |
37014c64 | 713 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
c7293870 AC |
714 | return 0; |
715 | /* Check command sets enabled as well as supported */ | |
37014c64 | 716 | if ((id[ATA_ID_CFS_ENABLE_1] & (1 << 10)) == 0) |
c7293870 | 717 | return 0; |
37014c64 | 718 | return id[ATA_ID_COMMAND_SET_1] & (1 << 10); |
c7293870 AC |
719 | } |
720 | ||
721 | static inline int ata_id_has_wcache(const u16 *id) | |
722 | { | |
723 | /* Yes children, word 83 valid bits cover word 82 data */ | |
37014c64 | 724 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 725 | return 0; |
37014c64 | 726 | return id[ATA_ID_COMMAND_SET_1] & (1 << 5); |
c7293870 AC |
727 | } |
728 | ||
729 | static inline int ata_id_has_pm(const u16 *id) | |
730 | { | |
37014c64 | 731 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 732 | return 0; |
37014c64 | 733 | return id[ATA_ID_COMMAND_SET_1] & (1 << 3); |
c7293870 AC |
734 | } |
735 | ||
736 | static inline int ata_id_rahead_enabled(const u16 *id) | |
737 | { | |
37014c64 | 738 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
c7293870 | 739 | return 0; |
37014c64 | 740 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 6); |
c7293870 AC |
741 | } |
742 | ||
743 | static inline int ata_id_wcache_enabled(const u16 *id) | |
744 | { | |
37014c64 | 745 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
c7293870 | 746 | return 0; |
37014c64 | 747 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 5); |
c7293870 AC |
748 | } |
749 | ||
750 | /** | |
751 | * ata_id_major_version - get ATA level of drive | |
752 | * @id: Identify data | |
753 | * | |
754 | * Caveats: | |
755 | * ATA-1 considers identify optional | |
756 | * ATA-2 introduces mandatory identify | |
757 | * ATA-3 introduces word 80 and accurate reporting | |
758 | * | |
759 | * The practical impact of this is that ata_id_major_version cannot | |
2dcb407e | 760 | * reliably report on drives below ATA3. |
c7293870 AC |
761 | */ |
762 | ||
3d2ca910 TH |
763 | static inline unsigned int ata_id_major_version(const u16 *id) |
764 | { | |
765 | unsigned int mver; | |
766 | ||
b352e57d AC |
767 | if (id[ATA_ID_MAJOR_VER] == 0xFFFF) |
768 | return 0; | |
769 | ||
3d2ca910 TH |
770 | for (mver = 14; mver >= 1; mver--) |
771 | if (id[ATA_ID_MAJOR_VER] & (1 << mver)) | |
772 | break; | |
773 | return mver; | |
774 | } | |
775 | ||
32d90911 TH |
776 | static inline int ata_id_is_sata(const u16 *id) |
777 | { | |
367d7e78 BZ |
778 | /* |
779 | * See if word 93 is 0 AND drive is at least ATA-5 compatible | |
780 | * verifying that word 80 by casting it to a signed type -- | |
781 | * this trick allows us to filter out the reserved values of | |
782 | * 0x0000 and 0xffff along with the earlier ATA revisions... | |
783 | */ | |
784 | if (id[ATA_ID_HW_CONFIG] == 0 && (short)id[ATA_ID_MAJOR_VER] >= 0x0020) | |
785 | return 1; | |
786 | return 0; | |
32d90911 TH |
787 | } |
788 | ||
ae8d4ee7 AC |
789 | static inline int ata_id_has_tpm(const u16 *id) |
790 | { | |
791 | /* The TPM bits are only valid on ATA8 */ | |
792 | if (ata_id_major_version(id) < 8) | |
793 | return 0; | |
794 | if ((id[48] & 0xC000) != 0x4000) | |
795 | return 0; | |
796 | return id[48] & (1 << 0); | |
797 | } | |
798 | ||
799 | static inline int ata_id_has_dword_io(const u16 *id) | |
800 | { | |
801 | /* ATA 8 reuses this flag for "trusted" computing */ | |
802 | if (ata_id_major_version(id) > 7) | |
803 | return 0; | |
37014c64 | 804 | if (id[ATA_ID_DWORD_IO] & (1 << 0)) |
ae8d4ee7 AC |
805 | return 1; |
806 | return 0; | |
807 | } | |
808 | ||
ea6ce53c EO |
809 | static inline int ata_id_has_unload(const u16 *id) |
810 | { | |
811 | if (ata_id_major_version(id) >= 7 && | |
812 | (id[ATA_ID_CFSSE] & 0xC000) == 0x4000 && | |
813 | id[ATA_ID_CFSSE] & (1 << 13)) | |
814 | return 1; | |
815 | return 0; | |
816 | } | |
817 | ||
4bca3286 MP |
818 | static inline int ata_id_form_factor(const u16 *id) |
819 | { | |
820 | u16 val = id[168]; | |
821 | ||
822 | if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) | |
823 | return 0; | |
824 | ||
825 | val &= 0xf; | |
826 | ||
827 | if (val > 5) | |
828 | return 0; | |
829 | ||
830 | return val; | |
831 | } | |
832 | ||
833 | static inline int ata_id_rotation_rate(const u16 *id) | |
834 | { | |
835 | u16 val = id[217]; | |
836 | ||
837 | if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) | |
838 | return 0; | |
839 | ||
840 | if (val > 1 && val < 0x401) | |
841 | return 0; | |
842 | ||
843 | return val; | |
844 | } | |
845 | ||
0c659b82 MW |
846 | static inline int ata_id_has_trim(const u16 *id) |
847 | { | |
848 | if (ata_id_major_version(id) >= 7 && | |
849 | (id[ATA_ID_DATA_SET_MGMT] & 1)) | |
850 | return 1; | |
851 | return 0; | |
852 | } | |
853 | ||
e78db4df MP |
854 | static inline int ata_id_has_zero_after_trim(const u16 *id) |
855 | { | |
856 | /* DSM supported, deterministic read, and read zero after trim set */ | |
857 | if (ata_id_has_trim(id) && | |
858 | (id[ATA_ID_ADDITIONAL_SUPP] & 0x4020) == 0x4020) | |
859 | return 1; | |
860 | ||
861 | return 0; | |
862 | } | |
863 | ||
057ace5e | 864 | static inline int ata_id_current_chs_valid(const u16 *id) |
8bf62ece | 865 | { |
9bec2e38 JG |
866 | /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command |
867 | has not been issued to the device then the values of | |
37014c64 BZ |
868 | id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */ |
869 | return (id[ATA_ID_FIELD_VALID] & 1) && /* Current translation valid */ | |
870 | id[ATA_ID_CUR_CYLS] && /* cylinders in current translation */ | |
871 | id[ATA_ID_CUR_HEADS] && /* heads in current translation */ | |
872 | id[ATA_ID_CUR_HEADS] <= 16 && | |
873 | id[ATA_ID_CUR_SECTORS]; /* sectors in current translation */ | |
8bf62ece AL |
874 | } |
875 | ||
b352e57d AC |
876 | static inline int ata_id_is_cfa(const u16 *id) |
877 | { | |
4b7d1c05 BG |
878 | if ((id[ATA_ID_CONFIG] == 0x848A) || /* Traditional CF */ |
879 | (id[ATA_ID_CONFIG] == 0x844A)) /* Delkin Devices CF */ | |
b352e57d | 880 | return 1; |
2999b58b SS |
881 | /* |
882 | * CF specs don't require specific value in the word 0 anymore and yet | |
883 | * they forbid to report the ATA version in the word 80 and require the | |
884 | * CFA feature set support to be indicated in the word 83 in this case. | |
885 | * Unfortunately, some cards only follow either of this requirements, | |
886 | * and while those that don't indicate CFA feature support need some | |
887 | * sort of quirk list, it seems impractical for the ones that do... | |
888 | */ | |
889 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC004) == 0x4004) | |
b352e57d AC |
890 | return 1; |
891 | return 0; | |
892 | } | |
893 | ||
8bff7c6b JA |
894 | static inline int ata_id_is_ssd(const u16 *id) |
895 | { | |
896 | return id[ATA_ID_ROT_SPEED] == 0x01; | |
897 | } | |
898 | ||
6dae44f9 BZ |
899 | static inline int ata_id_pio_need_iordy(const u16 *id, const u8 pio) |
900 | { | |
901 | /* CF spec. r4.1 Table 22 says no IORDY on PIO5 and PIO6. */ | |
902 | if (pio > 4 && ata_id_is_cfa(id)) | |
903 | return 0; | |
904 | /* For PIO3 and higher it is mandatory. */ | |
905 | if (pio > 2) | |
906 | return 1; | |
907 | /* Turn it on when possible. */ | |
908 | if (ata_id_has_iordy(id)) | |
909 | return 1; | |
910 | return 0; | |
911 | } | |
912 | ||
fc085150 AC |
913 | static inline int ata_drive_40wire(const u16 *dev_id) |
914 | { | |
32d90911 | 915 | if (ata_id_is_sata(dev_id)) |
fc085150 | 916 | return 0; /* SATA */ |
37014c64 | 917 | if ((dev_id[ATA_ID_HW_CONFIG] & 0xE000) == 0x6000) |
fc085150 AC |
918 | return 0; /* 80 wire */ |
919 | return 1; | |
920 | } | |
921 | ||
6bbfd53d AC |
922 | static inline int ata_drive_40wire_relaxed(const u16 *dev_id) |
923 | { | |
37014c64 | 924 | if ((dev_id[ATA_ID_HW_CONFIG] & 0x2000) == 0x2000) |
6bbfd53d AC |
925 | return 0; /* 80 wire */ |
926 | return 1; | |
927 | } | |
928 | ||
057ace5e | 929 | static inline int atapi_cdb_len(const u16 *dev_id) |
1da177e4 | 930 | { |
37014c64 | 931 | u16 tmp = dev_id[ATA_ID_CONFIG] & 0x3; |
1da177e4 LT |
932 | switch (tmp) { |
933 | case 0: return 12; | |
934 | case 1: return 16; | |
935 | default: return -1; | |
936 | } | |
937 | } | |
938 | ||
f8d8e579 TB |
939 | static inline int atapi_command_packet_set(const u16 *dev_id) |
940 | { | |
37014c64 | 941 | return (dev_id[ATA_ID_CONFIG] >> 8) & 0x1f; |
f8d8e579 TB |
942 | } |
943 | ||
91163006 TH |
944 | static inline int atapi_id_dmadir(const u16 *dev_id) |
945 | { | |
946 | return ata_id_major_version(dev_id) >= 7 && (dev_id[62] & 0x8000); | |
947 | } | |
948 | ||
a02227c9 BZ |
949 | /* |
950 | * ata_id_is_lba_capacity_ok() performs a sanity check on | |
951 | * the claimed LBA capacity value for the device. | |
952 | * | |
953 | * Returns 1 if LBA capacity looks sensible, 0 otherwise. | |
954 | * | |
955 | * It is called only once for each device. | |
956 | */ | |
957 | static inline int ata_id_is_lba_capacity_ok(u16 *id) | |
958 | { | |
959 | unsigned long lba_sects, chs_sects, head, tail; | |
960 | ||
961 | /* No non-LBA info .. so valid! */ | |
962 | if (id[ATA_ID_CYLS] == 0) | |
963 | return 1; | |
964 | ||
965 | lba_sects = ata_id_u32(id, ATA_ID_LBA_CAPACITY); | |
966 | ||
967 | /* | |
968 | * The ATA spec tells large drives to return | |
969 | * C/H/S = 16383/16/63 independent of their size. | |
970 | * Some drives can be jumpered to use 15 heads instead of 16. | |
971 | * Some drives can be jumpered to use 4092 cyls instead of 16383. | |
972 | */ | |
973 | if ((id[ATA_ID_CYLS] == 16383 || | |
974 | (id[ATA_ID_CYLS] == 4092 && id[ATA_ID_CUR_CYLS] == 16383)) && | |
975 | id[ATA_ID_SECTORS] == 63 && | |
976 | (id[ATA_ID_HEADS] == 15 || id[ATA_ID_HEADS] == 16) && | |
977 | (lba_sects >= 16383 * 63 * id[ATA_ID_HEADS])) | |
978 | return 1; | |
979 | ||
980 | chs_sects = id[ATA_ID_CYLS] * id[ATA_ID_HEADS] * id[ATA_ID_SECTORS]; | |
981 | ||
982 | /* perform a rough sanity check on lba_sects: within 10% is OK */ | |
983 | if (lba_sects - chs_sects < chs_sects/10) | |
984 | return 1; | |
985 | ||
986 | /* some drives have the word order reversed */ | |
987 | head = (lba_sects >> 16) & 0xffff; | |
988 | tail = lba_sects & 0xffff; | |
989 | lba_sects = head | (tail << 16); | |
990 | ||
991 | if (lba_sects - chs_sects < chs_sects/10) { | |
992 | *(__le32 *)&id[ATA_ID_LBA_CAPACITY] = __cpu_to_le32(lba_sects); | |
993 | return 1; /* LBA capacity is (now) good */ | |
994 | } | |
995 | ||
996 | return 0; /* LBA capacity value may be bad */ | |
997 | } | |
998 | ||
93734a23 BZ |
999 | static inline void ata_id_to_hd_driveid(u16 *id) |
1000 | { | |
1001 | #ifdef __BIG_ENDIAN | |
1002 | /* accessed in struct hd_driveid as 8-bit values */ | |
1003 | id[ATA_ID_MAX_MULTSECT] = __cpu_to_le16(id[ATA_ID_MAX_MULTSECT]); | |
1004 | id[ATA_ID_CAPABILITY] = __cpu_to_le16(id[ATA_ID_CAPABILITY]); | |
1005 | id[ATA_ID_OLD_PIO_MODES] = __cpu_to_le16(id[ATA_ID_OLD_PIO_MODES]); | |
1006 | id[ATA_ID_OLD_DMA_MODES] = __cpu_to_le16(id[ATA_ID_OLD_DMA_MODES]); | |
1007 | id[ATA_ID_MULTSECT] = __cpu_to_le16(id[ATA_ID_MULTSECT]); | |
1008 | ||
1009 | /* as 32-bit values */ | |
1010 | *(u32 *)&id[ATA_ID_LBA_CAPACITY] = ata_id_u32(id, ATA_ID_LBA_CAPACITY); | |
1011 | *(u32 *)&id[ATA_ID_SPG] = ata_id_u32(id, ATA_ID_SPG); | |
1012 | ||
1013 | /* as 64-bit value */ | |
1014 | *(u64 *)&id[ATA_ID_LBA_CAPACITY_2] = | |
1015 | ata_id_u64(id, ATA_ID_LBA_CAPACITY_2); | |
1016 | #endif | |
1017 | } | |
1018 | ||
0c659b82 | 1019 | /* |
d0634c4a MP |
1020 | * Write LBA Range Entries to the buffer that will cover the extent from |
1021 | * sector to sector + count. This is used for TRIM and for ADD LBA(S) | |
1022 | * TO NV CACHE PINNED SET. | |
0c659b82 | 1023 | */ |
d0634c4a MP |
1024 | static inline unsigned ata_set_lba_range_entries(void *_buffer, |
1025 | unsigned buf_size, u64 sector, unsigned long count) | |
0c659b82 MW |
1026 | { |
1027 | __le64 *buffer = _buffer; | |
d0634c4a | 1028 | unsigned i = 0, used_bytes; |
0c659b82 | 1029 | |
d0634c4a | 1030 | while (i < buf_size / 8 ) { /* 6-byte LBA + 2-byte range per entry */ |
0c659b82 MW |
1031 | u64 entry = sector | |
1032 | ((u64)(count > 0xffff ? 0xffff : count) << 48); | |
1033 | buffer[i++] = __cpu_to_le64(entry); | |
1034 | if (count <= 0xffff) | |
1035 | break; | |
1036 | count -= 0xffff; | |
1037 | sector += 0xffff; | |
1038 | } | |
1039 | ||
d0634c4a MP |
1040 | used_bytes = ALIGN(i * 8, 512); |
1041 | memset(buffer + i, 0, used_bytes - i * 8); | |
1042 | return used_bytes; | |
0c659b82 MW |
1043 | } |
1044 | ||
07f6f7d0 AL |
1045 | static inline int is_multi_taskfile(struct ata_taskfile *tf) |
1046 | { | |
1047 | return (tf->command == ATA_CMD_READ_MULTI) || | |
1048 | (tf->command == ATA_CMD_WRITE_MULTI) || | |
1049 | (tf->command == ATA_CMD_READ_MULTI_EXT) || | |
c2956a3b AL |
1050 | (tf->command == ATA_CMD_WRITE_MULTI_EXT) || |
1051 | (tf->command == ATA_CMD_WRITE_MULTI_FUA_EXT); | |
07f6f7d0 AL |
1052 | } |
1053 | ||
1da177e4 LT |
1054 | static inline int ata_ok(u8 status) |
1055 | { | |
1056 | return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR)) | |
1057 | == ATA_DRDY); | |
1058 | } | |
1059 | ||
c6a33e24 AL |
1060 | static inline int lba_28_ok(u64 block, u32 n_block) |
1061 | { | |
45c4d015 ML |
1062 | /* check the ending block number: must be LESS THAN 0x0fffffff */ |
1063 | return ((block + n_block) < ((1 << 28) - 1)) && (n_block <= 256); | |
c6a33e24 AL |
1064 | } |
1065 | ||
1066 | static inline int lba_48_ok(u64 block, u32 n_block) | |
1067 | { | |
1068 | /* check the ending block number */ | |
1069 | return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= 65536); | |
1070 | } | |
1071 | ||
814600ee TH |
1072 | #define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff) |
1073 | #define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16) | |
1074 | #define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff) | |
1075 | #define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf) | |
1076 | ||
1da177e4 | 1077 | #endif /* __LINUX_ATA_H__ */ |