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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, |
37014c64 BZ |
92 | ATA_ID_LAST_LUN = 126, |
93 | ATA_ID_DLF = 128, | |
94 | ATA_ID_CSFO = 129, | |
95 | ATA_ID_CFA_POWER = 160, | |
d42ad15b SS |
96 | ATA_ID_CFA_KEY_MGMT = 162, |
97 | ATA_ID_CFA_MODES = 163, | |
0c659b82 | 98 | ATA_ID_DATA_SET_MGMT = 169, |
8bff7c6b | 99 | ATA_ID_ROT_SPEED = 217, |
1da177e4 LT |
100 | ATA_ID_PIO4 = (1 << 1), |
101 | ||
a0cf733b TH |
102 | ATA_ID_SERNO_LEN = 20, |
103 | ATA_ID_FW_REV_LEN = 8, | |
104 | ATA_ID_PROD_LEN = 40, | |
105 | ||
1da177e4 | 106 | ATA_PCI_CTL_OFS = 2, |
4099d143 BZ |
107 | |
108 | ATA_PIO0 = (1 << 0), | |
109 | ATA_PIO1 = ATA_PIO0 | (1 << 1), | |
110 | ATA_PIO2 = ATA_PIO1 | (1 << 2), | |
111 | ATA_PIO3 = ATA_PIO2 | (1 << 3), | |
112 | ATA_PIO4 = ATA_PIO3 | (1 << 4), | |
113 | ATA_PIO5 = ATA_PIO4 | (1 << 5), | |
114 | ATA_PIO6 = ATA_PIO5 | (1 << 6), | |
115 | ||
22ddbd1e EIB |
116 | ATA_PIO4_ONLY = (1 << 4), |
117 | ||
91a6d4ed BZ |
118 | ATA_SWDMA0 = (1 << 0), |
119 | ATA_SWDMA1 = ATA_SWDMA0 | (1 << 1), | |
120 | ATA_SWDMA2 = ATA_SWDMA1 | (1 << 2), | |
121 | ||
122 | ATA_SWDMA2_ONLY = (1 << 2), | |
123 | ||
124 | ATA_MWDMA0 = (1 << 0), | |
125 | ATA_MWDMA1 = ATA_MWDMA0 | (1 << 1), | |
126 | ATA_MWDMA2 = ATA_MWDMA1 | (1 << 2), | |
22ddbd1e EIB |
127 | ATA_MWDMA3 = ATA_MWDMA2 | (1 << 3), |
128 | ATA_MWDMA4 = ATA_MWDMA3 | (1 << 4), | |
91a6d4ed BZ |
129 | |
130 | ATA_MWDMA12_ONLY = (1 << 1) | (1 << 2), | |
131 | ATA_MWDMA2_ONLY = (1 << 2), | |
132 | ||
1da177e4 LT |
133 | ATA_UDMA0 = (1 << 0), |
134 | ATA_UDMA1 = ATA_UDMA0 | (1 << 1), | |
135 | ATA_UDMA2 = ATA_UDMA1 | (1 << 2), | |
136 | ATA_UDMA3 = ATA_UDMA2 | (1 << 3), | |
137 | ATA_UDMA4 = ATA_UDMA3 | (1 << 4), | |
138 | ATA_UDMA5 = ATA_UDMA4 | (1 << 5), | |
139 | ATA_UDMA6 = ATA_UDMA5 | (1 << 6), | |
140 | ATA_UDMA7 = ATA_UDMA6 | (1 << 7), | |
141 | /* ATA_UDMA7 is just for completeness... doesn't exist (yet?). */ | |
142 | ||
22ddbd1e EIB |
143 | ATA_UDMA24_ONLY = (1 << 2) | (1 << 4), |
144 | ||
1da177e4 LT |
145 | ATA_UDMA_MASK_40C = ATA_UDMA2, /* udma0-2 */ |
146 | ||
147 | /* DMA-related */ | |
148 | ATA_PRD_SZ = 8, | |
149 | ATA_PRD_TBL_SZ = (ATA_MAX_PRD * ATA_PRD_SZ), | |
150 | ATA_PRD_EOT = (1 << 31), /* end-of-table flag */ | |
151 | ||
152 | ATA_DMA_TABLE_OFS = 4, | |
153 | ATA_DMA_STATUS = 2, | |
154 | ATA_DMA_CMD = 0, | |
155 | ATA_DMA_WR = (1 << 3), | |
156 | ATA_DMA_START = (1 << 0), | |
157 | ATA_DMA_INTR = (1 << 2), | |
158 | ATA_DMA_ERR = (1 << 1), | |
159 | ATA_DMA_ACTIVE = (1 << 0), | |
160 | ||
161 | /* bits in ATA command block registers */ | |
162 | ATA_HOB = (1 << 7), /* LBA48 selector */ | |
163 | ATA_NIEN = (1 << 1), /* disable-irq flag */ | |
164 | ATA_LBA = (1 << 6), /* LBA28 selector */ | |
165 | ATA_DEV1 = (1 << 4), /* Select Device 1 (slave) */ | |
166 | ATA_DEVICE_OBS = (1 << 7) | (1 << 5), /* obs bits in dev reg */ | |
167 | ATA_DEVCTL_OBS = (1 << 3), /* obsolete bit in devctl reg */ | |
168 | ATA_BUSY = (1 << 7), /* BSY status bit */ | |
169 | ATA_DRDY = (1 << 6), /* device ready */ | |
170 | ATA_DF = (1 << 5), /* device fault */ | |
b5911620 | 171 | ATA_DSC = (1 << 4), /* drive seek complete */ |
1da177e4 | 172 | ATA_DRQ = (1 << 3), /* data request i/o */ |
b5911620 BZ |
173 | ATA_CORR = (1 << 2), /* corrected data error */ |
174 | ATA_IDX = (1 << 1), /* index */ | |
1da177e4 LT |
175 | ATA_ERR = (1 << 0), /* have an error */ |
176 | ATA_SRST = (1 << 2), /* software reset */ | |
9be1e979 | 177 | ATA_ICRC = (1 << 7), /* interface CRC error */ |
b5911620 | 178 | ATA_BBK = ATA_ICRC, /* pre-EIDE: block marked bad */ |
9be1e979 | 179 | ATA_UNC = (1 << 6), /* uncorrectable media error */ |
b5911620 | 180 | ATA_MC = (1 << 5), /* media changed */ |
9be1e979 | 181 | ATA_IDNF = (1 << 4), /* ID not found */ |
b5911620 | 182 | ATA_MCR = (1 << 3), /* media change requested */ |
1da177e4 | 183 | ATA_ABORTED = (1 << 2), /* command aborted */ |
b5911620 BZ |
184 | ATA_TRK0NF = (1 << 1), /* track 0 not found */ |
185 | ATA_AMNF = (1 << 0), /* address mark not found */ | |
186 | ATAPI_LFS = 0xF0, /* last failed sense */ | |
187 | ATAPI_EOM = ATA_TRK0NF, /* end of media */ | |
188 | ATAPI_ILI = ATA_AMNF, /* illegal length indication */ | |
189 | ATAPI_IO = (1 << 1), | |
190 | ATAPI_COD = (1 << 0), | |
1da177e4 LT |
191 | |
192 | /* ATA command block registers */ | |
193 | ATA_REG_DATA = 0x00, | |
194 | ATA_REG_ERR = 0x01, | |
195 | ATA_REG_NSECT = 0x02, | |
196 | ATA_REG_LBAL = 0x03, | |
197 | ATA_REG_LBAM = 0x04, | |
198 | ATA_REG_LBAH = 0x05, | |
199 | ATA_REG_DEVICE = 0x06, | |
200 | ATA_REG_STATUS = 0x07, | |
201 | ||
202 | ATA_REG_FEATURE = ATA_REG_ERR, /* and their aliases */ | |
203 | ATA_REG_CMD = ATA_REG_STATUS, | |
204 | ATA_REG_BYTEL = ATA_REG_LBAM, | |
205 | ATA_REG_BYTEH = ATA_REG_LBAH, | |
206 | ATA_REG_DEVSEL = ATA_REG_DEVICE, | |
207 | ATA_REG_IRQ = ATA_REG_NSECT, | |
208 | ||
209 | /* ATA device commands */ | |
ab2181cf | 210 | ATA_CMD_DEV_RESET = 0x08, /* ATAPI device reset */ |
1da177e4 | 211 | ATA_CMD_CHK_POWER = 0xE5, /* check power mode */ |
972dcafb DG |
212 | ATA_CMD_STANDBY = 0xE2, /* place in standby power mode */ |
213 | ATA_CMD_IDLE = 0xE3, /* place in idle power mode */ | |
1da177e4 | 214 | ATA_CMD_EDD = 0x90, /* execute device diagnostic */ |
6521148c RH |
215 | ATA_CMD_DOWNLOAD_MICRO = 0x92, |
216 | ATA_CMD_NOP = 0x00, | |
1da177e4 LT |
217 | ATA_CMD_FLUSH = 0xE7, |
218 | ATA_CMD_FLUSH_EXT = 0xEA, | |
219 | ATA_CMD_ID_ATA = 0xEC, | |
220 | ATA_CMD_ID_ATAPI = 0xA1, | |
6521148c | 221 | ATA_CMD_SERVICE = 0xA2, |
1da177e4 LT |
222 | ATA_CMD_READ = 0xC8, |
223 | ATA_CMD_READ_EXT = 0x25, | |
6521148c RH |
224 | ATA_CMD_READ_QUEUED = 0x26, |
225 | ATA_CMD_READ_STREAM_EXT = 0x2B, | |
226 | ATA_CMD_READ_STREAM_DMA_EXT = 0x2A, | |
1da177e4 LT |
227 | ATA_CMD_WRITE = 0xCA, |
228 | ATA_CMD_WRITE_EXT = 0x35, | |
6521148c RH |
229 | ATA_CMD_WRITE_QUEUED = 0x36, |
230 | ATA_CMD_WRITE_STREAM_EXT = 0x3B, | |
231 | ATA_CMD_WRITE_STREAM_DMA_EXT = 0x3A, | |
9a3dccc4 | 232 | ATA_CMD_WRITE_FUA_EXT = 0x3D, |
6521148c | 233 | ATA_CMD_WRITE_QUEUED_FUA_EXT = 0x3E, |
88e49034 TH |
234 | ATA_CMD_FPDMA_READ = 0x60, |
235 | ATA_CMD_FPDMA_WRITE = 0x61, | |
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, | |
263 | ATA_CMD_TRUSTED_RCV = 0x5C, | |
264 | ATA_CMD_TRUSTED_RCV_DMA = 0x5D, | |
265 | ATA_CMD_TRUSTED_SND = 0x5E, | |
266 | ATA_CMD_TRUSTED_SND_DMA = 0x5F, | |
814600ee TH |
267 | ATA_CMD_PMP_READ = 0xE4, |
268 | ATA_CMD_PMP_WRITE = 0xE8, | |
ce2e0abb | 269 | ATA_CMD_CONF_OVERLAY = 0xB1, |
6521148c RH |
270 | ATA_CMD_SEC_SET_PASS = 0xF1, |
271 | ATA_CMD_SEC_UNLOCK = 0xF2, | |
272 | ATA_CMD_SEC_ERASE_PREP = 0xF3, | |
273 | ATA_CMD_SEC_ERASE_UNIT = 0xF4, | |
ce2e0abb | 274 | ATA_CMD_SEC_FREEZE_LOCK = 0xF5, |
6521148c RH |
275 | ATA_CMD_SEC_DISABLE_PASS = 0xF6, |
276 | ATA_CMD_CONFIG_STREAM = 0x51, | |
476d9894 BZ |
277 | ATA_CMD_SMART = 0xB0, |
278 | ATA_CMD_MEDIA_LOCK = 0xDE, | |
279 | ATA_CMD_MEDIA_UNLOCK = 0xDF, | |
0c659b82 | 280 | ATA_CMD_DSM = 0x06, |
6521148c RH |
281 | ATA_CMD_CHK_MED_CRD_TYP = 0xD1, |
282 | ATA_CMD_CFA_REQ_EXT_ERR = 0x03, | |
283 | ATA_CMD_CFA_WRITE_NE = 0x38, | |
284 | ATA_CMD_CFA_TRANS_SECT = 0x87, | |
285 | ATA_CMD_CFA_ERASE = 0xC0, | |
286 | ATA_CMD_CFA_WRITE_MULT_NE = 0xCD, | |
476d9894 BZ |
287 | /* marked obsolete in the ATA/ATAPI-7 spec */ |
288 | ATA_CMD_RESTORE = 0x10, | |
88e49034 TH |
289 | |
290 | /* READ_LOG_EXT pages */ | |
291 | ATA_LOG_SATA_NCQ = 0x10, | |
1da177e4 | 292 | |
5a5dbd18 ML |
293 | /* READ/WRITE LONG (obsolete) */ |
294 | ATA_CMD_READ_LONG = 0x22, | |
295 | ATA_CMD_READ_LONG_ONCE = 0x23, | |
296 | ATA_CMD_WRITE_LONG = 0x32, | |
297 | ATA_CMD_WRITE_LONG_ONCE = 0x33, | |
298 | ||
1da177e4 LT |
299 | /* SETFEATURES stuff */ |
300 | SETFEATURES_XFER = 0x03, | |
301 | XFER_UDMA_7 = 0x47, | |
302 | XFER_UDMA_6 = 0x46, | |
303 | XFER_UDMA_5 = 0x45, | |
304 | XFER_UDMA_4 = 0x44, | |
305 | XFER_UDMA_3 = 0x43, | |
306 | XFER_UDMA_2 = 0x42, | |
307 | XFER_UDMA_1 = 0x41, | |
308 | XFER_UDMA_0 = 0x40, | |
b352e57d AC |
309 | XFER_MW_DMA_4 = 0x24, /* CFA only */ |
310 | XFER_MW_DMA_3 = 0x23, /* CFA only */ | |
1da177e4 LT |
311 | XFER_MW_DMA_2 = 0x22, |
312 | XFER_MW_DMA_1 = 0x21, | |
313 | XFER_MW_DMA_0 = 0x20, | |
b4b52db7 AC |
314 | XFER_SW_DMA_2 = 0x12, |
315 | XFER_SW_DMA_1 = 0x11, | |
316 | XFER_SW_DMA_0 = 0x10, | |
b352e57d AC |
317 | XFER_PIO_6 = 0x0E, /* CFA only */ |
318 | XFER_PIO_5 = 0x0D, /* CFA only */ | |
1da177e4 LT |
319 | XFER_PIO_4 = 0x0C, |
320 | XFER_PIO_3 = 0x0B, | |
321 | XFER_PIO_2 = 0x0A, | |
322 | XFER_PIO_1 = 0x09, | |
323 | XFER_PIO_0 = 0x08, | |
1da177e4 LT |
324 | XFER_PIO_SLOW = 0x00, |
325 | ||
3057ac3c | 326 | SETFEATURES_WC_ON = 0x02, /* Enable write cache */ |
327 | SETFEATURES_WC_OFF = 0x82, /* Disable write cache */ | |
328 | ||
476d9894 BZ |
329 | /* Enable/Disable Automatic Acoustic Management */ |
330 | SETFEATURES_AAM_ON = 0x42, | |
331 | SETFEATURES_AAM_OFF = 0xC2, | |
332 | ||
169439c2 ML |
333 | SETFEATURES_SPINUP = 0x07, /* Spin-up drive */ |
334 | ||
9f45cbd3 KCA |
335 | SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */ |
336 | SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */ | |
337 | ||
338 | /* SETFEATURE Sector counts for SATA features */ | |
fa5b561c | 339 | SATA_FPDMA_OFFSET = 0x01, /* FPDMA non-zero buffer offsets */ |
f1bce7f8 TH |
340 | SATA_FPDMA_AA = 0x02, /* FPDMA Setup FIS Auto-Activate */ |
341 | SATA_DIPM = 0x03, /* Device Initiated Power Management */ | |
fa5b561c | 342 | SATA_FPDMA_IN_ORDER = 0x04, /* FPDMA in-order data delivery */ |
f1bce7f8 | 343 | SATA_AN = 0x05, /* Asynchronous Notification */ |
fa5b561c | 344 | SATA_SSP = 0x06, /* Software Settings Preservation */ |
9f45cbd3 | 345 | |
ce2e0abb TH |
346 | /* feature values for SET_MAX */ |
347 | ATA_SET_MAX_ADDR = 0x00, | |
348 | ATA_SET_MAX_PASSWD = 0x01, | |
349 | ATA_SET_MAX_LOCK = 0x02, | |
350 | ATA_SET_MAX_UNLOCK = 0x03, | |
351 | ATA_SET_MAX_FREEZE_LOCK = 0x04, | |
352 | ||
353 | /* feature values for DEVICE CONFIGURATION OVERLAY */ | |
354 | ATA_DCO_RESTORE = 0xC0, | |
355 | ATA_DCO_FREEZE_LOCK = 0xC1, | |
356 | ATA_DCO_IDENTIFY = 0xC2, | |
357 | ATA_DCO_SET = 0xC3, | |
358 | ||
476d9894 BZ |
359 | /* feature values for SMART */ |
360 | ATA_SMART_ENABLE = 0xD8, | |
361 | ATA_SMART_READ_VALUES = 0xD0, | |
362 | ATA_SMART_READ_THRESHOLDS = 0xD1, | |
363 | ||
0c659b82 MW |
364 | /* feature values for Data Set Management */ |
365 | ATA_DSM_TRIM = 0x01, | |
366 | ||
476d9894 BZ |
367 | /* password used in LBA Mid / LBA High for executing SMART commands */ |
368 | ATA_SMART_LBAM_PASS = 0x4F, | |
369 | ATA_SMART_LBAH_PASS = 0xC2, | |
370 | ||
1da177e4 LT |
371 | /* ATAPI stuff */ |
372 | ATAPI_PKT_DMA = (1 << 0), | |
373 | ATAPI_DMADIR = (1 << 2), /* ATAPI data dir: | |
374 | 0=to device, 1=to host */ | |
375 | ATAPI_CDB_LEN = 16, | |
376 | ||
814600ee TH |
377 | /* PMP stuff */ |
378 | SATA_PMP_MAX_PORTS = 15, | |
379 | SATA_PMP_CTRL_PORT = 15, | |
380 | ||
381 | SATA_PMP_GSCR_DWORDS = 128, | |
382 | SATA_PMP_GSCR_PROD_ID = 0, | |
383 | SATA_PMP_GSCR_REV = 1, | |
384 | SATA_PMP_GSCR_PORT_INFO = 2, | |
385 | SATA_PMP_GSCR_ERROR = 32, | |
386 | SATA_PMP_GSCR_ERROR_EN = 33, | |
387 | SATA_PMP_GSCR_FEAT = 64, | |
388 | SATA_PMP_GSCR_FEAT_EN = 96, | |
389 | ||
390 | SATA_PMP_PSCR_STATUS = 0, | |
391 | SATA_PMP_PSCR_ERROR = 1, | |
392 | SATA_PMP_PSCR_CONTROL = 2, | |
393 | ||
394 | SATA_PMP_FEAT_BIST = (1 << 0), | |
395 | SATA_PMP_FEAT_PMREQ = (1 << 1), | |
396 | SATA_PMP_FEAT_DYNSSC = (1 << 2), | |
397 | SATA_PMP_FEAT_NOTIFY = (1 << 3), | |
398 | ||
1da177e4 LT |
399 | /* cable types */ |
400 | ATA_CBL_NONE = 0, | |
401 | ATA_CBL_PATA40 = 1, | |
402 | ATA_CBL_PATA80 = 2, | |
c88f90c3 TH |
403 | ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */ |
404 | ATA_CBL_PATA_UNK = 4, /* don't know, maybe 80c? */ | |
405 | ATA_CBL_PATA_IGN = 5, /* don't know, ignore cable handling */ | |
406 | ATA_CBL_SATA = 6, | |
1da177e4 LT |
407 | |
408 | /* SATA Status and Control Registers */ | |
409 | SCR_STATUS = 0, | |
410 | SCR_ERROR = 1, | |
411 | SCR_CONTROL = 2, | |
412 | SCR_ACTIVE = 3, | |
413 | SCR_NOTIFICATION = 4, | |
414 | ||
9be1e979 TH |
415 | /* SError bits */ |
416 | SERR_DATA_RECOVERED = (1 << 0), /* recovered data error */ | |
417 | SERR_COMM_RECOVERED = (1 << 1), /* recovered comm failure */ | |
418 | SERR_DATA = (1 << 8), /* unrecovered data error */ | |
419 | SERR_PERSISTENT = (1 << 9), /* persistent data/comm error */ | |
420 | SERR_PROTOCOL = (1 << 10), /* protocol violation */ | |
421 | SERR_INTERNAL = (1 << 11), /* host internal error */ | |
422 | SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */ | |
1333e194 RH |
423 | SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */ |
424 | SERR_COMM_WAKE = (1 << 18), /* Comm wake */ | |
425 | SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */ | |
426 | SERR_DISPARITY = (1 << 20), /* Disparity */ | |
427 | SERR_CRC = (1 << 21), /* CRC error */ | |
428 | SERR_HANDSHAKE = (1 << 22), /* Handshake error */ | |
429 | SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */ | |
430 | SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */ | |
431 | SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */ | |
9be1e979 TH |
432 | SERR_DEV_XCHG = (1 << 26), /* device exchanged */ |
433 | ||
1da177e4 LT |
434 | /* struct ata_taskfile flags */ |
435 | ATA_TFLAG_LBA48 = (1 << 0), /* enable 48-bit LBA and "HOB" */ | |
436 | ATA_TFLAG_ISADDR = (1 << 1), /* enable r/w to nsect/lba regs */ | |
437 | ATA_TFLAG_DEVICE = (1 << 2), /* enable r/w to device reg */ | |
438 | ATA_TFLAG_WRITE = (1 << 3), /* data dir: host->dev==1 (write) */ | |
8bf62ece | 439 | ATA_TFLAG_LBA = (1 << 4), /* enable LBA */ |
9a3dccc4 | 440 | ATA_TFLAG_FUA = (1 << 5), /* enable FUA */ |
ea9b395f | 441 | ATA_TFLAG_POLLING = (1 << 6), /* set nIEN to 1 and use polling */ |
405e66b3 TH |
442 | |
443 | /* protocol flags */ | |
444 | ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */ | |
445 | ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */ | |
446 | ATA_PROT_FLAG_DATA = ATA_PROT_FLAG_PIO | ATA_PROT_FLAG_DMA, | |
447 | ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */ | |
448 | ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */ | |
1da177e4 LT |
449 | }; |
450 | ||
451 | enum ata_tf_protocols { | |
452 | /* ATA taskfile protocols */ | |
453 | ATA_PROT_UNKNOWN, /* unknown/invalid */ | |
454 | ATA_PROT_NODATA, /* no data */ | |
1dce589c | 455 | ATA_PROT_PIO, /* PIO data xfer */ |
1da177e4 | 456 | ATA_PROT_DMA, /* DMA */ |
88e49034 | 457 | ATA_PROT_NCQ, /* NCQ */ |
0dc36888 TH |
458 | ATAPI_PROT_NODATA, /* packet command, no data */ |
459 | ATAPI_PROT_PIO, /* packet command, PIO data xfer*/ | |
460 | ATAPI_PROT_DMA, /* packet command with special DMA sauce */ | |
1da177e4 LT |
461 | }; |
462 | ||
463 | enum ata_ioctls { | |
464 | ATA_IOC_GET_IO32 = 0x309, | |
465 | ATA_IOC_SET_IO32 = 0x324, | |
466 | }; | |
467 | ||
468 | /* core structures */ | |
469 | ||
470 | struct ata_prd { | |
4ca4e439 AV |
471 | __le32 addr; |
472 | __le32 flags_len; | |
1da177e4 LT |
473 | }; |
474 | ||
475 | struct ata_taskfile { | |
476 | unsigned long flags; /* ATA_TFLAG_xxx */ | |
477 | u8 protocol; /* ATA_PROT_xxx */ | |
478 | ||
479 | u8 ctl; /* control reg */ | |
480 | ||
481 | u8 hob_feature; /* additional data */ | |
482 | u8 hob_nsect; /* to support LBA48 */ | |
483 | u8 hob_lbal; | |
484 | u8 hob_lbam; | |
485 | u8 hob_lbah; | |
486 | ||
487 | u8 feature; | |
488 | u8 nsect; | |
489 | u8 lbal; | |
490 | u8 lbam; | |
491 | u8 lbah; | |
492 | ||
493 | u8 device; | |
494 | ||
495 | u8 command; /* IO operation */ | |
496 | }; | |
497 | ||
405e66b3 TH |
498 | /* |
499 | * protocol tests | |
500 | */ | |
501 | static inline unsigned int ata_prot_flags(u8 prot) | |
502 | { | |
503 | switch (prot) { | |
504 | case ATA_PROT_NODATA: | |
505 | return 0; | |
506 | case ATA_PROT_PIO: | |
507 | return ATA_PROT_FLAG_PIO; | |
508 | case ATA_PROT_DMA: | |
509 | return ATA_PROT_FLAG_DMA; | |
510 | case ATA_PROT_NCQ: | |
511 | return ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ; | |
0dc36888 | 512 | case ATAPI_PROT_NODATA: |
405e66b3 | 513 | return ATA_PROT_FLAG_ATAPI; |
0dc36888 | 514 | case ATAPI_PROT_PIO: |
405e66b3 | 515 | return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO; |
0dc36888 | 516 | case ATAPI_PROT_DMA: |
405e66b3 TH |
517 | return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA; |
518 | } | |
519 | return 0; | |
520 | } | |
521 | ||
522 | static inline int ata_is_atapi(u8 prot) | |
523 | { | |
524 | return ata_prot_flags(prot) & ATA_PROT_FLAG_ATAPI; | |
525 | } | |
526 | ||
527 | static inline int ata_is_nodata(u8 prot) | |
528 | { | |
529 | return !(ata_prot_flags(prot) & ATA_PROT_FLAG_DATA); | |
530 | } | |
531 | ||
532 | static inline int ata_is_pio(u8 prot) | |
533 | { | |
534 | return ata_prot_flags(prot) & ATA_PROT_FLAG_PIO; | |
535 | } | |
536 | ||
537 | static inline int ata_is_dma(u8 prot) | |
538 | { | |
539 | return ata_prot_flags(prot) & ATA_PROT_FLAG_DMA; | |
540 | } | |
541 | ||
542 | static inline int ata_is_ncq(u8 prot) | |
543 | { | |
544 | return ata_prot_flags(prot) & ATA_PROT_FLAG_NCQ; | |
545 | } | |
546 | ||
547 | static inline int ata_is_data(u8 prot) | |
548 | { | |
549 | return ata_prot_flags(prot) & ATA_PROT_FLAG_DATA; | |
550 | } | |
551 | ||
552 | /* | |
553 | * id tests | |
554 | */ | |
37014c64 BZ |
555 | #define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0) |
556 | #define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9)) | |
557 | #define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (1 << 8)) | |
88e49034 | 558 | #define ata_id_has_ncq(id) ((id)[76] & (1 << 8)) |
37014c64 BZ |
559 | #define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1) |
560 | #define ata_id_removeable(id) ((id)[ATA_ID_CONFIG] & (1 << 7)) | |
854c73a2 | 561 | #define ata_id_has_atapi_AN(id) \ |
9f45cbd3 KCA |
562 | ( (((id)[76] != 0x0000) && ((id)[76] != 0xffff)) && \ |
563 | ((id)[78] & (1 << 5)) ) | |
388539f3 SL |
564 | #define ata_id_has_fpdma_aa(id) \ |
565 | ( (((id)[76] != 0x0000) && ((id)[76] != 0xffff)) && \ | |
566 | ((id)[78] & (1 << 2)) ) | |
37014c64 BZ |
567 | #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10)) |
568 | #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11)) | |
1da177e4 LT |
569 | #define ata_id_u32(id,n) \ |
570 | (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)])) | |
571 | #define ata_id_u64(id,n) \ | |
572 | ( ((u64) (id)[(n) + 3] << 48) | \ | |
573 | ((u64) (id)[(n) + 2] << 32) | \ | |
574 | ((u64) (id)[(n) + 1] << 16) | \ | |
575 | ((u64) (id)[(n) + 0]) ) | |
576 | ||
37014c64 | 577 | #define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20) |
312f7da2 | 578 | |
ca77329f KCA |
579 | static inline bool ata_id_has_hipm(const u16 *id) |
580 | { | |
581 | u16 val = id[76]; | |
582 | ||
583 | if (val == 0 || val == 0xffff) | |
584 | return false; | |
585 | ||
586 | return val & (1 << 9); | |
587 | } | |
588 | ||
589 | static inline bool ata_id_has_dipm(const u16 *id) | |
590 | { | |
591 | u16 val = id[78]; | |
592 | ||
593 | if (val == 0 || val == 0xffff) | |
594 | return false; | |
595 | ||
596 | return val & (1 << 3); | |
597 | } | |
598 | ||
ae8d4ee7 | 599 | |
c7293870 AC |
600 | static inline int ata_id_has_fua(const u16 *id) |
601 | { | |
37014c64 | 602 | if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000) |
c7293870 | 603 | return 0; |
37014c64 | 604 | return id[ATA_ID_CFSSE] & (1 << 6); |
c7293870 AC |
605 | } |
606 | ||
607 | static inline int ata_id_has_flush(const u16 *id) | |
608 | { | |
37014c64 | 609 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 610 | return 0; |
37014c64 | 611 | return id[ATA_ID_COMMAND_SET_2] & (1 << 12); |
c7293870 AC |
612 | } |
613 | ||
4b58f17d BZ |
614 | static inline int ata_id_flush_enabled(const u16 *id) |
615 | { | |
616 | if (ata_id_has_flush(id) == 0) | |
617 | return 0; | |
618 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) | |
619 | return 0; | |
620 | return id[ATA_ID_CFS_ENABLE_2] & (1 << 12); | |
621 | } | |
622 | ||
c7293870 AC |
623 | static inline int ata_id_has_flush_ext(const u16 *id) |
624 | { | |
37014c64 | 625 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 626 | return 0; |
37014c64 | 627 | return id[ATA_ID_COMMAND_SET_2] & (1 << 13); |
c7293870 AC |
628 | } |
629 | ||
ff2779b5 BZ |
630 | static inline int ata_id_flush_ext_enabled(const u16 *id) |
631 | { | |
632 | if (ata_id_has_flush_ext(id) == 0) | |
633 | return 0; | |
634 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) | |
635 | return 0; | |
636 | /* | |
637 | * some Maxtor disks have bit 13 defined incorrectly | |
638 | * so check bit 10 too | |
639 | */ | |
640 | return (id[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400; | |
641 | } | |
642 | ||
18f0f978 CH |
643 | static inline int ata_id_has_large_logical_sectors(const u16 *id) |
644 | { | |
645 | if ((id[ATA_ID_SECTOR_SIZE] & 0xc000) != 0x4000) | |
646 | return 0; | |
647 | return id[ATA_ID_SECTOR_SIZE] & (1 << 13); | |
648 | } | |
649 | ||
650 | static inline u8 ata_id_logical_per_physical_sectors(const u16 *id) | |
651 | { | |
652 | return id[ATA_ID_SECTOR_SIZE] & 0xf; | |
653 | } | |
654 | ||
c7293870 AC |
655 | static inline int ata_id_has_lba48(const u16 *id) |
656 | { | |
37014c64 | 657 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 658 | return 0; |
37014c64 | 659 | if (!ata_id_u64(id, ATA_ID_LBA_CAPACITY_2)) |
17bd9a2f | 660 | return 0; |
37014c64 | 661 | return id[ATA_ID_COMMAND_SET_2] & (1 << 10); |
c7293870 AC |
662 | } |
663 | ||
942dcd85 BZ |
664 | static inline int ata_id_lba48_enabled(const u16 *id) |
665 | { | |
666 | if (ata_id_has_lba48(id) == 0) | |
667 | return 0; | |
668 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) | |
669 | return 0; | |
670 | return id[ATA_ID_CFS_ENABLE_2] & (1 << 10); | |
671 | } | |
672 | ||
c7293870 AC |
673 | static inline int ata_id_hpa_enabled(const u16 *id) |
674 | { | |
675 | /* Yes children, word 83 valid bits cover word 82 data */ | |
37014c64 | 676 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 AC |
677 | return 0; |
678 | /* And 87 covers 85-87 */ | |
37014c64 | 679 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
c7293870 AC |
680 | return 0; |
681 | /* Check command sets enabled as well as supported */ | |
37014c64 | 682 | if ((id[ATA_ID_CFS_ENABLE_1] & (1 << 10)) == 0) |
c7293870 | 683 | return 0; |
37014c64 | 684 | return id[ATA_ID_COMMAND_SET_1] & (1 << 10); |
c7293870 AC |
685 | } |
686 | ||
687 | static inline int ata_id_has_wcache(const u16 *id) | |
688 | { | |
689 | /* Yes children, word 83 valid bits cover word 82 data */ | |
37014c64 | 690 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 691 | return 0; |
37014c64 | 692 | return id[ATA_ID_COMMAND_SET_1] & (1 << 5); |
c7293870 AC |
693 | } |
694 | ||
695 | static inline int ata_id_has_pm(const u16 *id) | |
696 | { | |
37014c64 | 697 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 698 | return 0; |
37014c64 | 699 | return id[ATA_ID_COMMAND_SET_1] & (1 << 3); |
c7293870 AC |
700 | } |
701 | ||
702 | static inline int ata_id_rahead_enabled(const u16 *id) | |
703 | { | |
37014c64 | 704 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
c7293870 | 705 | return 0; |
37014c64 | 706 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 6); |
c7293870 AC |
707 | } |
708 | ||
709 | static inline int ata_id_wcache_enabled(const u16 *id) | |
710 | { | |
37014c64 | 711 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
c7293870 | 712 | return 0; |
37014c64 | 713 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 5); |
c7293870 AC |
714 | } |
715 | ||
716 | /** | |
717 | * ata_id_major_version - get ATA level of drive | |
718 | * @id: Identify data | |
719 | * | |
720 | * Caveats: | |
721 | * ATA-1 considers identify optional | |
722 | * ATA-2 introduces mandatory identify | |
723 | * ATA-3 introduces word 80 and accurate reporting | |
724 | * | |
725 | * The practical impact of this is that ata_id_major_version cannot | |
2dcb407e | 726 | * reliably report on drives below ATA3. |
c7293870 AC |
727 | */ |
728 | ||
3d2ca910 TH |
729 | static inline unsigned int ata_id_major_version(const u16 *id) |
730 | { | |
731 | unsigned int mver; | |
732 | ||
b352e57d AC |
733 | if (id[ATA_ID_MAJOR_VER] == 0xFFFF) |
734 | return 0; | |
735 | ||
3d2ca910 TH |
736 | for (mver = 14; mver >= 1; mver--) |
737 | if (id[ATA_ID_MAJOR_VER] & (1 << mver)) | |
738 | break; | |
739 | return mver; | |
740 | } | |
741 | ||
32d90911 TH |
742 | static inline int ata_id_is_sata(const u16 *id) |
743 | { | |
367d7e78 BZ |
744 | /* |
745 | * See if word 93 is 0 AND drive is at least ATA-5 compatible | |
746 | * verifying that word 80 by casting it to a signed type -- | |
747 | * this trick allows us to filter out the reserved values of | |
748 | * 0x0000 and 0xffff along with the earlier ATA revisions... | |
749 | */ | |
750 | if (id[ATA_ID_HW_CONFIG] == 0 && (short)id[ATA_ID_MAJOR_VER] >= 0x0020) | |
751 | return 1; | |
752 | return 0; | |
32d90911 TH |
753 | } |
754 | ||
ae8d4ee7 AC |
755 | static inline int ata_id_has_tpm(const u16 *id) |
756 | { | |
757 | /* The TPM bits are only valid on ATA8 */ | |
758 | if (ata_id_major_version(id) < 8) | |
759 | return 0; | |
760 | if ((id[48] & 0xC000) != 0x4000) | |
761 | return 0; | |
762 | return id[48] & (1 << 0); | |
763 | } | |
764 | ||
765 | static inline int ata_id_has_dword_io(const u16 *id) | |
766 | { | |
767 | /* ATA 8 reuses this flag for "trusted" computing */ | |
768 | if (ata_id_major_version(id) > 7) | |
769 | return 0; | |
37014c64 | 770 | if (id[ATA_ID_DWORD_IO] & (1 << 0)) |
ae8d4ee7 AC |
771 | return 1; |
772 | return 0; | |
773 | } | |
774 | ||
ea6ce53c EO |
775 | static inline int ata_id_has_unload(const u16 *id) |
776 | { | |
777 | if (ata_id_major_version(id) >= 7 && | |
778 | (id[ATA_ID_CFSSE] & 0xC000) == 0x4000 && | |
779 | id[ATA_ID_CFSSE] & (1 << 13)) | |
780 | return 1; | |
781 | return 0; | |
782 | } | |
783 | ||
4bca3286 MP |
784 | static inline int ata_id_form_factor(const u16 *id) |
785 | { | |
786 | u16 val = id[168]; | |
787 | ||
788 | if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) | |
789 | return 0; | |
790 | ||
791 | val &= 0xf; | |
792 | ||
793 | if (val > 5) | |
794 | return 0; | |
795 | ||
796 | return val; | |
797 | } | |
798 | ||
799 | static inline int ata_id_rotation_rate(const u16 *id) | |
800 | { | |
801 | u16 val = id[217]; | |
802 | ||
803 | if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) | |
804 | return 0; | |
805 | ||
806 | if (val > 1 && val < 0x401) | |
807 | return 0; | |
808 | ||
809 | return val; | |
810 | } | |
811 | ||
0c659b82 MW |
812 | static inline int ata_id_has_trim(const u16 *id) |
813 | { | |
814 | if (ata_id_major_version(id) >= 7 && | |
815 | (id[ATA_ID_DATA_SET_MGMT] & 1)) | |
816 | return 1; | |
817 | return 0; | |
818 | } | |
819 | ||
e78db4df MP |
820 | static inline int ata_id_has_zero_after_trim(const u16 *id) |
821 | { | |
822 | /* DSM supported, deterministic read, and read zero after trim set */ | |
823 | if (ata_id_has_trim(id) && | |
824 | (id[ATA_ID_ADDITIONAL_SUPP] & 0x4020) == 0x4020) | |
825 | return 1; | |
826 | ||
827 | return 0; | |
828 | } | |
829 | ||
057ace5e | 830 | static inline int ata_id_current_chs_valid(const u16 *id) |
8bf62ece | 831 | { |
9bec2e38 JG |
832 | /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command |
833 | has not been issued to the device then the values of | |
37014c64 BZ |
834 | id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */ |
835 | return (id[ATA_ID_FIELD_VALID] & 1) && /* Current translation valid */ | |
836 | id[ATA_ID_CUR_CYLS] && /* cylinders in current translation */ | |
837 | id[ATA_ID_CUR_HEADS] && /* heads in current translation */ | |
838 | id[ATA_ID_CUR_HEADS] <= 16 && | |
839 | id[ATA_ID_CUR_SECTORS]; /* sectors in current translation */ | |
8bf62ece AL |
840 | } |
841 | ||
b352e57d AC |
842 | static inline int ata_id_is_cfa(const u16 *id) |
843 | { | |
2999b58b | 844 | if (id[ATA_ID_CONFIG] == 0x848A) /* Traditional CF */ |
b352e57d | 845 | return 1; |
2999b58b SS |
846 | /* |
847 | * CF specs don't require specific value in the word 0 anymore and yet | |
848 | * they forbid to report the ATA version in the word 80 and require the | |
849 | * CFA feature set support to be indicated in the word 83 in this case. | |
850 | * Unfortunately, some cards only follow either of this requirements, | |
851 | * and while those that don't indicate CFA feature support need some | |
852 | * sort of quirk list, it seems impractical for the ones that do... | |
853 | */ | |
854 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC004) == 0x4004) | |
b352e57d AC |
855 | return 1; |
856 | return 0; | |
857 | } | |
858 | ||
8bff7c6b JA |
859 | static inline int ata_id_is_ssd(const u16 *id) |
860 | { | |
861 | return id[ATA_ID_ROT_SPEED] == 0x01; | |
862 | } | |
863 | ||
6dae44f9 BZ |
864 | static inline int ata_id_pio_need_iordy(const u16 *id, const u8 pio) |
865 | { | |
866 | /* CF spec. r4.1 Table 22 says no IORDY on PIO5 and PIO6. */ | |
867 | if (pio > 4 && ata_id_is_cfa(id)) | |
868 | return 0; | |
869 | /* For PIO3 and higher it is mandatory. */ | |
870 | if (pio > 2) | |
871 | return 1; | |
872 | /* Turn it on when possible. */ | |
873 | if (ata_id_has_iordy(id)) | |
874 | return 1; | |
875 | return 0; | |
876 | } | |
877 | ||
fc085150 AC |
878 | static inline int ata_drive_40wire(const u16 *dev_id) |
879 | { | |
32d90911 | 880 | if (ata_id_is_sata(dev_id)) |
fc085150 | 881 | return 0; /* SATA */ |
37014c64 | 882 | if ((dev_id[ATA_ID_HW_CONFIG] & 0xE000) == 0x6000) |
fc085150 AC |
883 | return 0; /* 80 wire */ |
884 | return 1; | |
885 | } | |
886 | ||
6bbfd53d AC |
887 | static inline int ata_drive_40wire_relaxed(const u16 *dev_id) |
888 | { | |
37014c64 | 889 | if ((dev_id[ATA_ID_HW_CONFIG] & 0x2000) == 0x2000) |
6bbfd53d AC |
890 | return 0; /* 80 wire */ |
891 | return 1; | |
892 | } | |
893 | ||
057ace5e | 894 | static inline int atapi_cdb_len(const u16 *dev_id) |
1da177e4 | 895 | { |
37014c64 | 896 | u16 tmp = dev_id[ATA_ID_CONFIG] & 0x3; |
1da177e4 LT |
897 | switch (tmp) { |
898 | case 0: return 12; | |
899 | case 1: return 16; | |
900 | default: return -1; | |
901 | } | |
902 | } | |
903 | ||
f8d8e579 TB |
904 | static inline int atapi_command_packet_set(const u16 *dev_id) |
905 | { | |
37014c64 | 906 | return (dev_id[ATA_ID_CONFIG] >> 8) & 0x1f; |
f8d8e579 TB |
907 | } |
908 | ||
91163006 TH |
909 | static inline int atapi_id_dmadir(const u16 *dev_id) |
910 | { | |
911 | return ata_id_major_version(dev_id) >= 7 && (dev_id[62] & 0x8000); | |
912 | } | |
913 | ||
a02227c9 BZ |
914 | /* |
915 | * ata_id_is_lba_capacity_ok() performs a sanity check on | |
916 | * the claimed LBA capacity value for the device. | |
917 | * | |
918 | * Returns 1 if LBA capacity looks sensible, 0 otherwise. | |
919 | * | |
920 | * It is called only once for each device. | |
921 | */ | |
922 | static inline int ata_id_is_lba_capacity_ok(u16 *id) | |
923 | { | |
924 | unsigned long lba_sects, chs_sects, head, tail; | |
925 | ||
926 | /* No non-LBA info .. so valid! */ | |
927 | if (id[ATA_ID_CYLS] == 0) | |
928 | return 1; | |
929 | ||
930 | lba_sects = ata_id_u32(id, ATA_ID_LBA_CAPACITY); | |
931 | ||
932 | /* | |
933 | * The ATA spec tells large drives to return | |
934 | * C/H/S = 16383/16/63 independent of their size. | |
935 | * Some drives can be jumpered to use 15 heads instead of 16. | |
936 | * Some drives can be jumpered to use 4092 cyls instead of 16383. | |
937 | */ | |
938 | if ((id[ATA_ID_CYLS] == 16383 || | |
939 | (id[ATA_ID_CYLS] == 4092 && id[ATA_ID_CUR_CYLS] == 16383)) && | |
940 | id[ATA_ID_SECTORS] == 63 && | |
941 | (id[ATA_ID_HEADS] == 15 || id[ATA_ID_HEADS] == 16) && | |
942 | (lba_sects >= 16383 * 63 * id[ATA_ID_HEADS])) | |
943 | return 1; | |
944 | ||
945 | chs_sects = id[ATA_ID_CYLS] * id[ATA_ID_HEADS] * id[ATA_ID_SECTORS]; | |
946 | ||
947 | /* perform a rough sanity check on lba_sects: within 10% is OK */ | |
948 | if (lba_sects - chs_sects < chs_sects/10) | |
949 | return 1; | |
950 | ||
951 | /* some drives have the word order reversed */ | |
952 | head = (lba_sects >> 16) & 0xffff; | |
953 | tail = lba_sects & 0xffff; | |
954 | lba_sects = head | (tail << 16); | |
955 | ||
956 | if (lba_sects - chs_sects < chs_sects/10) { | |
957 | *(__le32 *)&id[ATA_ID_LBA_CAPACITY] = __cpu_to_le32(lba_sects); | |
958 | return 1; /* LBA capacity is (now) good */ | |
959 | } | |
960 | ||
961 | return 0; /* LBA capacity value may be bad */ | |
962 | } | |
963 | ||
93734a23 BZ |
964 | static inline void ata_id_to_hd_driveid(u16 *id) |
965 | { | |
966 | #ifdef __BIG_ENDIAN | |
967 | /* accessed in struct hd_driveid as 8-bit values */ | |
968 | id[ATA_ID_MAX_MULTSECT] = __cpu_to_le16(id[ATA_ID_MAX_MULTSECT]); | |
969 | id[ATA_ID_CAPABILITY] = __cpu_to_le16(id[ATA_ID_CAPABILITY]); | |
970 | id[ATA_ID_OLD_PIO_MODES] = __cpu_to_le16(id[ATA_ID_OLD_PIO_MODES]); | |
971 | id[ATA_ID_OLD_DMA_MODES] = __cpu_to_le16(id[ATA_ID_OLD_DMA_MODES]); | |
972 | id[ATA_ID_MULTSECT] = __cpu_to_le16(id[ATA_ID_MULTSECT]); | |
973 | ||
974 | /* as 32-bit values */ | |
975 | *(u32 *)&id[ATA_ID_LBA_CAPACITY] = ata_id_u32(id, ATA_ID_LBA_CAPACITY); | |
976 | *(u32 *)&id[ATA_ID_SPG] = ata_id_u32(id, ATA_ID_SPG); | |
977 | ||
978 | /* as 64-bit value */ | |
979 | *(u64 *)&id[ATA_ID_LBA_CAPACITY_2] = | |
980 | ata_id_u64(id, ATA_ID_LBA_CAPACITY_2); | |
981 | #endif | |
982 | } | |
983 | ||
0c659b82 | 984 | /* |
d0634c4a MP |
985 | * Write LBA Range Entries to the buffer that will cover the extent from |
986 | * sector to sector + count. This is used for TRIM and for ADD LBA(S) | |
987 | * TO NV CACHE PINNED SET. | |
0c659b82 | 988 | */ |
d0634c4a MP |
989 | static inline unsigned ata_set_lba_range_entries(void *_buffer, |
990 | unsigned buf_size, u64 sector, unsigned long count) | |
0c659b82 MW |
991 | { |
992 | __le64 *buffer = _buffer; | |
d0634c4a | 993 | unsigned i = 0, used_bytes; |
0c659b82 | 994 | |
d0634c4a | 995 | while (i < buf_size / 8 ) { /* 6-byte LBA + 2-byte range per entry */ |
0c659b82 MW |
996 | u64 entry = sector | |
997 | ((u64)(count > 0xffff ? 0xffff : count) << 48); | |
998 | buffer[i++] = __cpu_to_le64(entry); | |
999 | if (count <= 0xffff) | |
1000 | break; | |
1001 | count -= 0xffff; | |
1002 | sector += 0xffff; | |
1003 | } | |
1004 | ||
d0634c4a MP |
1005 | used_bytes = ALIGN(i * 8, 512); |
1006 | memset(buffer + i, 0, used_bytes - i * 8); | |
1007 | return used_bytes; | |
0c659b82 MW |
1008 | } |
1009 | ||
07f6f7d0 AL |
1010 | static inline int is_multi_taskfile(struct ata_taskfile *tf) |
1011 | { | |
1012 | return (tf->command == ATA_CMD_READ_MULTI) || | |
1013 | (tf->command == ATA_CMD_WRITE_MULTI) || | |
1014 | (tf->command == ATA_CMD_READ_MULTI_EXT) || | |
c2956a3b AL |
1015 | (tf->command == ATA_CMD_WRITE_MULTI_EXT) || |
1016 | (tf->command == ATA_CMD_WRITE_MULTI_FUA_EXT); | |
07f6f7d0 AL |
1017 | } |
1018 | ||
1da177e4 LT |
1019 | static inline int ata_ok(u8 status) |
1020 | { | |
1021 | return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR)) | |
1022 | == ATA_DRDY); | |
1023 | } | |
1024 | ||
c6a33e24 AL |
1025 | static inline int lba_28_ok(u64 block, u32 n_block) |
1026 | { | |
1027 | /* check the ending block number */ | |
97b697a1 | 1028 | return ((block + n_block) < ((u64)1 << 28)) && (n_block <= 256); |
c6a33e24 AL |
1029 | } |
1030 | ||
1031 | static inline int lba_48_ok(u64 block, u32 n_block) | |
1032 | { | |
1033 | /* check the ending block number */ | |
1034 | return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= 65536); | |
1035 | } | |
1036 | ||
814600ee TH |
1037 | #define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff) |
1038 | #define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16) | |
1039 | #define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff) | |
1040 | #define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf) | |
1041 | ||
1da177e4 | 1042 | #endif /* __LINUX_ATA_H__ */ |