1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | |
3 | /* |
4 | * Copyright 2003-2004 Red Hat, Inc. All rights reserved. |
5 | * Copyright 2003-2004 Jeff Garzik |
6 | * |
7 | * libata documentation is available via 'make {ps|pdf}docs', |
8 | * as Documentation/driver-api/libata.rst |
9 | * |
10 | * Hardware documentation available from http://www.t13.org/ |
11 | */ |
12 | |
13 | #ifndef __LINUX_ATA_H__ |
14 | #define __LINUX_ATA_H__ |
15 | |
16 | #include <linux/bits.h> |
17 | #include <linux/string.h> |
18 | #include <linux/types.h> |
19 | |
20 | /* defines only for the constants which don't work well as enums */ |
21 | #define ATA_DMA_BOUNDARY 0xffffUL |
22 | #define ATA_DMA_MASK 0xffffffffULL |
23 | |
24 | enum { |
25 | /* various global constants */ |
26 | ATA_MAX_DEVICES = 2, /* per bus/port */ |
27 | ATA_MAX_PRD = 256, /* we could make these 256/256 */ |
28 | ATA_SECT_SIZE = 512, |
29 | ATA_MAX_SECTORS_128 = 128, |
30 | ATA_MAX_SECTORS = 256, |
31 | ATA_MAX_SECTORS_1024 = 1024, |
32 | ATA_MAX_SECTORS_LBA48 = 65535,/* avoid count to be 0000h */ |
33 | ATA_MAX_SECTORS_TAPE = 65535, |
34 | ATA_MAX_TRIM_RNUM = 64, /* 512-byte payload / (6-byte LBA + 2-byte range per entry) */ |
35 | |
36 | ATA_ID_WORDS = 256, |
37 | ATA_ID_CONFIG = 0, |
38 | ATA_ID_CYLS = 1, |
39 | ATA_ID_HEADS = 3, |
40 | ATA_ID_SECTORS = 6, |
41 | ATA_ID_SERNO = 10, |
42 | ATA_ID_BUF_SIZE = 21, |
43 | ATA_ID_FW_REV = 23, |
44 | ATA_ID_PROD = 27, |
45 | ATA_ID_MAX_MULTSECT = 47, |
46 | ATA_ID_DWORD_IO = 48, /* before ATA-8 */ |
47 | ATA_ID_TRUSTED = 48, /* ATA-8 and later */ |
48 | ATA_ID_CAPABILITY = 49, |
49 | ATA_ID_OLD_PIO_MODES = 51, |
50 | ATA_ID_OLD_DMA_MODES = 52, |
51 | ATA_ID_FIELD_VALID = 53, |
52 | ATA_ID_CUR_CYLS = 54, |
53 | ATA_ID_CUR_HEADS = 55, |
54 | ATA_ID_CUR_SECTORS = 56, |
55 | ATA_ID_MULTSECT = 59, |
56 | ATA_ID_LBA_CAPACITY = 60, |
57 | ATA_ID_SWDMA_MODES = 62, |
58 | ATA_ID_MWDMA_MODES = 63, |
59 | ATA_ID_PIO_MODES = 64, |
60 | ATA_ID_EIDE_DMA_MIN = 65, |
61 | ATA_ID_EIDE_DMA_TIME = 66, |
62 | ATA_ID_EIDE_PIO = 67, |
63 | ATA_ID_EIDE_PIO_IORDY = 68, |
64 | ATA_ID_ADDITIONAL_SUPP = 69, |
65 | ATA_ID_QUEUE_DEPTH = 75, |
66 | ATA_ID_SATA_CAPABILITY = 76, |
67 | ATA_ID_SATA_CAPABILITY_2 = 77, |
68 | ATA_ID_FEATURE_SUPP = 78, |
69 | ATA_ID_MAJOR_VER = 80, |
70 | ATA_ID_COMMAND_SET_1 = 82, |
71 | ATA_ID_COMMAND_SET_2 = 83, |
72 | ATA_ID_CFSSE = 84, |
73 | ATA_ID_CFS_ENABLE_1 = 85, |
74 | ATA_ID_CFS_ENABLE_2 = 86, |
75 | ATA_ID_CSF_DEFAULT = 87, |
76 | ATA_ID_UDMA_MODES = 88, |
77 | ATA_ID_HW_CONFIG = 93, |
78 | ATA_ID_SPG = 98, |
79 | ATA_ID_LBA_CAPACITY_2 = 100, |
80 | ATA_ID_SECTOR_SIZE = 106, |
81 | ATA_ID_WWN = 108, |
82 | ATA_ID_LOGICAL_SECTOR_SIZE = 117, /* and 118 */ |
83 | ATA_ID_COMMAND_SET_3 = 119, |
84 | ATA_ID_COMMAND_SET_4 = 120, |
85 | ATA_ID_LAST_LUN = 126, |
86 | ATA_ID_DLF = 128, |
87 | ATA_ID_CSFO = 129, |
88 | ATA_ID_CFA_POWER = 160, |
89 | ATA_ID_CFA_KEY_MGMT = 162, |
90 | ATA_ID_CFA_MODES = 163, |
91 | ATA_ID_DATA_SET_MGMT = 169, |
92 | ATA_ID_SCT_CMD_XPORT = 206, |
93 | ATA_ID_ROT_SPEED = 217, |
94 | ATA_ID_PIO4 = (1 << 1), |
95 | |
96 | ATA_ID_SERNO_LEN = 20, |
97 | ATA_ID_FW_REV_LEN = 8, |
98 | ATA_ID_PROD_LEN = 40, |
99 | ATA_ID_WWN_LEN = 8, |
100 | |
101 | ATA_PCI_CTL_OFS = 2, |
102 | |
103 | ATA_PIO0 = (1 << 0), |
104 | ATA_PIO1 = ATA_PIO0 | (1 << 1), |
105 | ATA_PIO2 = ATA_PIO1 | (1 << 2), |
106 | ATA_PIO3 = ATA_PIO2 | (1 << 3), |
107 | ATA_PIO4 = ATA_PIO3 | (1 << 4), |
108 | ATA_PIO5 = ATA_PIO4 | (1 << 5), |
109 | ATA_PIO6 = ATA_PIO5 | (1 << 6), |
110 | |
111 | ATA_PIO4_ONLY = (1 << 4), |
112 | |
113 | ATA_SWDMA0 = (1 << 0), |
114 | ATA_SWDMA1 = ATA_SWDMA0 | (1 << 1), |
115 | ATA_SWDMA2 = ATA_SWDMA1 | (1 << 2), |
116 | |
117 | ATA_SWDMA2_ONLY = (1 << 2), |
118 | |
119 | ATA_MWDMA0 = (1 << 0), |
120 | ATA_MWDMA1 = ATA_MWDMA0 | (1 << 1), |
121 | ATA_MWDMA2 = ATA_MWDMA1 | (1 << 2), |
122 | ATA_MWDMA3 = ATA_MWDMA2 | (1 << 3), |
123 | ATA_MWDMA4 = ATA_MWDMA3 | (1 << 4), |
124 | |
125 | ATA_MWDMA12_ONLY = (1 << 1) | (1 << 2), |
126 | ATA_MWDMA2_ONLY = (1 << 2), |
127 | |
128 | ATA_UDMA0 = (1 << 0), |
129 | ATA_UDMA1 = ATA_UDMA0 | (1 << 1), |
130 | ATA_UDMA2 = ATA_UDMA1 | (1 << 2), |
131 | ATA_UDMA3 = ATA_UDMA2 | (1 << 3), |
132 | ATA_UDMA4 = ATA_UDMA3 | (1 << 4), |
133 | ATA_UDMA5 = ATA_UDMA4 | (1 << 5), |
134 | ATA_UDMA6 = ATA_UDMA5 | (1 << 6), |
135 | ATA_UDMA7 = ATA_UDMA6 | (1 << 7), |
136 | /* ATA_UDMA7 is just for completeness... doesn't exist (yet?). */ |
137 | |
138 | ATA_UDMA24_ONLY = (1 << 2) | (1 << 4), |
139 | |
140 | ATA_UDMA_MASK_40C = ATA_UDMA2, /* udma0-2 */ |
141 | |
142 | /* DMA-related */ |
143 | ATA_PRD_SZ = 8, |
144 | ATA_PRD_TBL_SZ = (ATA_MAX_PRD * ATA_PRD_SZ), |
145 | ATA_PRD_EOT = (1 << 31), /* end-of-table flag */ |
146 | |
147 | ATA_DMA_TABLE_OFS = 4, |
148 | ATA_DMA_STATUS = 2, |
149 | ATA_DMA_CMD = 0, |
150 | ATA_DMA_WR = (1 << 3), |
151 | ATA_DMA_START = (1 << 0), |
152 | ATA_DMA_INTR = (1 << 2), |
153 | ATA_DMA_ERR = (1 << 1), |
154 | ATA_DMA_ACTIVE = (1 << 0), |
155 | |
156 | /* bits in ATA command block registers */ |
157 | ATA_HOB = (1 << 7), /* LBA48 selector */ |
158 | ATA_NIEN = (1 << 1), /* disable-irq flag */ |
159 | ATA_LBA = (1 << 6), /* LBA28 selector */ |
160 | ATA_DEV1 = (1 << 4), /* Select Device 1 (slave) */ |
161 | ATA_DEVICE_OBS = (1 << 7) | (1 << 5), /* obs bits in dev reg */ |
162 | ATA_DEVCTL_OBS = (1 << 3), /* obsolete bit in devctl reg */ |
163 | ATA_BUSY = (1 << 7), /* BSY status bit */ |
164 | ATA_DRDY = (1 << 6), /* device ready */ |
165 | ATA_DF = (1 << 5), /* device fault */ |
166 | ATA_DSC = (1 << 4), /* drive seek complete */ |
167 | ATA_DRQ = (1 << 3), /* data request i/o */ |
168 | ATA_CORR = (1 << 2), /* corrected data error */ |
169 | ATA_SENSE = (1 << 1), /* sense code available */ |
170 | ATA_ERR = (1 << 0), /* have an error */ |
171 | ATA_SRST = (1 << 2), /* software reset */ |
172 | ATA_ICRC = (1 << 7), /* interface CRC error */ |
173 | ATA_BBK = ATA_ICRC, /* pre-EIDE: block marked bad */ |
174 | ATA_UNC = (1 << 6), /* uncorrectable media error */ |
175 | ATA_MC = (1 << 5), /* media changed */ |
176 | ATA_IDNF = (1 << 4), /* ID not found */ |
177 | ATA_MCR = (1 << 3), /* media change requested */ |
178 | ATA_ABORTED = (1 << 2), /* command aborted */ |
179 | ATA_TRK0NF = (1 << 1), /* track 0 not found */ |
180 | ATA_AMNF = (1 << 0), /* address mark not found */ |
181 | ATAPI_LFS = 0xF0, /* last failed sense */ |
182 | ATAPI_EOM = ATA_TRK0NF, /* end of media */ |
183 | ATAPI_ILI = ATA_AMNF, /* illegal length indication */ |
184 | ATAPI_IO = (1 << 1), |
185 | ATAPI_COD = (1 << 0), |
186 | |
187 | /* ATA command block registers */ |
188 | ATA_REG_DATA = 0x00, |
189 | ATA_REG_ERR = 0x01, |
190 | ATA_REG_NSECT = 0x02, |
191 | ATA_REG_LBAL = 0x03, |
192 | ATA_REG_LBAM = 0x04, |
193 | ATA_REG_LBAH = 0x05, |
194 | ATA_REG_DEVICE = 0x06, |
195 | ATA_REG_STATUS = 0x07, |
196 | |
197 | ATA_REG_FEATURE = ATA_REG_ERR, /* and their aliases */ |
198 | ATA_REG_CMD = ATA_REG_STATUS, |
199 | ATA_REG_BYTEL = ATA_REG_LBAM, |
200 | ATA_REG_BYTEH = ATA_REG_LBAH, |
201 | ATA_REG_DEVSEL = ATA_REG_DEVICE, |
202 | ATA_REG_IRQ = ATA_REG_NSECT, |
203 | |
204 | /* ATA device commands */ |
205 | ATA_CMD_DEV_RESET = 0x08, /* ATAPI device reset */ |
206 | ATA_CMD_CHK_POWER = 0xE5, /* check power mode */ |
207 | ATA_CMD_STANDBY = 0xE2, /* place in standby power mode */ |
208 | ATA_CMD_IDLE = 0xE3, /* place in idle power mode */ |
209 | ATA_CMD_EDD = 0x90, /* execute device diagnostic */ |
210 | ATA_CMD_DOWNLOAD_MICRO = 0x92, |
211 | ATA_CMD_DOWNLOAD_MICRO_DMA = 0x93, |
212 | ATA_CMD_NOP = 0x00, |
213 | ATA_CMD_FLUSH = 0xE7, |
214 | ATA_CMD_FLUSH_EXT = 0xEA, |
215 | ATA_CMD_ID_ATA = 0xEC, |
216 | ATA_CMD_ID_ATAPI = 0xA1, |
217 | ATA_CMD_SERVICE = 0xA2, |
218 | ATA_CMD_READ = 0xC8, |
219 | ATA_CMD_READ_EXT = 0x25, |
220 | ATA_CMD_READ_QUEUED = 0x26, |
221 | ATA_CMD_READ_STREAM_EXT = 0x2B, |
222 | ATA_CMD_READ_STREAM_DMA_EXT = 0x2A, |
223 | ATA_CMD_WRITE = 0xCA, |
224 | ATA_CMD_WRITE_EXT = 0x35, |
225 | ATA_CMD_WRITE_QUEUED = 0x36, |
226 | ATA_CMD_WRITE_STREAM_EXT = 0x3B, |
227 | ATA_CMD_WRITE_STREAM_DMA_EXT = 0x3A, |
228 | ATA_CMD_WRITE_FUA_EXT = 0x3D, |
229 | ATA_CMD_WRITE_QUEUED_FUA_EXT = 0x3E, |
230 | ATA_CMD_FPDMA_READ = 0x60, |
231 | ATA_CMD_FPDMA_WRITE = 0x61, |
232 | ATA_CMD_NCQ_NON_DATA = 0x63, |
233 | ATA_CMD_FPDMA_SEND = 0x64, |
234 | ATA_CMD_FPDMA_RECV = 0x65, |
235 | ATA_CMD_PIO_READ = 0x20, |
236 | ATA_CMD_PIO_READ_EXT = 0x24, |
237 | ATA_CMD_PIO_WRITE = 0x30, |
238 | ATA_CMD_PIO_WRITE_EXT = 0x34, |
239 | ATA_CMD_READ_MULTI = 0xC4, |
240 | ATA_CMD_READ_MULTI_EXT = 0x29, |
241 | ATA_CMD_WRITE_MULTI = 0xC5, |
242 | ATA_CMD_WRITE_MULTI_EXT = 0x39, |
243 | ATA_CMD_WRITE_MULTI_FUA_EXT = 0xCE, |
244 | ATA_CMD_SET_FEATURES = 0xEF, |
245 | ATA_CMD_SET_MULTI = 0xC6, |
246 | ATA_CMD_PACKET = 0xA0, |
247 | ATA_CMD_VERIFY = 0x40, |
248 | ATA_CMD_VERIFY_EXT = 0x42, |
249 | ATA_CMD_WRITE_UNCORR_EXT = 0x45, |
250 | ATA_CMD_STANDBYNOW1 = 0xE0, |
251 | ATA_CMD_IDLEIMMEDIATE = 0xE1, |
252 | ATA_CMD_SLEEP = 0xE6, |
253 | ATA_CMD_INIT_DEV_PARAMS = 0x91, |
254 | ATA_CMD_READ_NATIVE_MAX = 0xF8, |
255 | ATA_CMD_READ_NATIVE_MAX_EXT = 0x27, |
256 | ATA_CMD_SET_MAX = 0xF9, |
257 | ATA_CMD_SET_MAX_EXT = 0x37, |
258 | ATA_CMD_READ_LOG_EXT = 0x2F, |
259 | ATA_CMD_WRITE_LOG_EXT = 0x3F, |
260 | ATA_CMD_READ_LOG_DMA_EXT = 0x47, |
261 | ATA_CMD_WRITE_LOG_DMA_EXT = 0x57, |
262 | ATA_CMD_TRUSTED_NONDATA = 0x5B, |
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, |
267 | ATA_CMD_PMP_READ = 0xE4, |
268 | ATA_CMD_PMP_READ_DMA = 0xE9, |
269 | ATA_CMD_PMP_WRITE = 0xE8, |
270 | ATA_CMD_PMP_WRITE_DMA = 0xEB, |
271 | ATA_CMD_CONF_OVERLAY = 0xB1, |
272 | ATA_CMD_SEC_SET_PASS = 0xF1, |
273 | ATA_CMD_SEC_UNLOCK = 0xF2, |
274 | ATA_CMD_SEC_ERASE_PREP = 0xF3, |
275 | ATA_CMD_SEC_ERASE_UNIT = 0xF4, |
276 | ATA_CMD_SEC_FREEZE_LOCK = 0xF5, |
277 | ATA_CMD_SEC_DISABLE_PASS = 0xF6, |
278 | ATA_CMD_CONFIG_STREAM = 0x51, |
279 | ATA_CMD_SMART = 0xB0, |
280 | ATA_CMD_MEDIA_LOCK = 0xDE, |
281 | ATA_CMD_MEDIA_UNLOCK = 0xDF, |
282 | ATA_CMD_DSM = 0x06, |
283 | ATA_CMD_CHK_MED_CRD_TYP = 0xD1, |
284 | ATA_CMD_CFA_REQ_EXT_ERR = 0x03, |
285 | ATA_CMD_CFA_WRITE_NE = 0x38, |
286 | ATA_CMD_CFA_TRANS_SECT = 0x87, |
287 | ATA_CMD_CFA_ERASE = 0xC0, |
288 | ATA_CMD_CFA_WRITE_MULT_NE = 0xCD, |
289 | ATA_CMD_REQ_SENSE_DATA = 0x0B, |
290 | ATA_CMD_SANITIZE_DEVICE = 0xB4, |
291 | ATA_CMD_ZAC_MGMT_IN = 0x4A, |
292 | ATA_CMD_ZAC_MGMT_OUT = 0x9F, |
293 | |
294 | /* marked obsolete in the ATA/ATAPI-7 spec */ |
295 | ATA_CMD_RESTORE = 0x10, |
296 | |
297 | /* Subcmds for ATA_CMD_FPDMA_RECV */ |
298 | ATA_SUBCMD_FPDMA_RECV_RD_LOG_DMA_EXT = 0x01, |
299 | ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN = 0x02, |
300 | |
301 | /* Subcmds for ATA_CMD_FPDMA_SEND */ |
302 | ATA_SUBCMD_FPDMA_SEND_DSM = 0x00, |
303 | ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT = 0x02, |
304 | |
305 | /* Subcmds for ATA_CMD_NCQ_NON_DATA */ |
306 | ATA_SUBCMD_NCQ_NON_DATA_ABORT_QUEUE = 0x00, |
307 | ATA_SUBCMD_NCQ_NON_DATA_SET_FEATURES = 0x05, |
308 | ATA_SUBCMD_NCQ_NON_DATA_ZERO_EXT = 0x06, |
309 | ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT = 0x07, |
310 | |
311 | /* Subcmds for ATA_CMD_ZAC_MGMT_IN */ |
312 | ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES = 0x00, |
313 | |
314 | /* Subcmds for ATA_CMD_ZAC_MGMT_OUT */ |
315 | ATA_SUBCMD_ZAC_MGMT_OUT_CLOSE_ZONE = 0x01, |
316 | ATA_SUBCMD_ZAC_MGMT_OUT_FINISH_ZONE = 0x02, |
317 | ATA_SUBCMD_ZAC_MGMT_OUT_OPEN_ZONE = 0x03, |
318 | ATA_SUBCMD_ZAC_MGMT_OUT_RESET_WRITE_POINTER = 0x04, |
319 | |
320 | /* READ_LOG_EXT pages */ |
321 | ATA_LOG_DIRECTORY = 0x0, |
322 | ATA_LOG_SATA_NCQ = 0x10, |
323 | ATA_LOG_NCQ_NON_DATA = 0x12, |
324 | ATA_LOG_NCQ_SEND_RECV = 0x13, |
325 | ATA_LOG_CDL = 0x18, |
326 | ATA_LOG_CDL_SIZE = ATA_SECT_SIZE, |
327 | ATA_LOG_IDENTIFY_DEVICE = 0x30, |
328 | ATA_LOG_SENSE_NCQ = 0x0F, |
329 | ATA_LOG_SENSE_NCQ_SIZE = ATA_SECT_SIZE * 2, |
330 | ATA_LOG_CONCURRENT_POSITIONING_RANGES = 0x47, |
331 | |
332 | /* Identify device log pages: */ |
333 | ATA_LOG_SUPPORTED_CAPABILITIES = 0x03, |
334 | ATA_LOG_CURRENT_SETTINGS = 0x04, |
335 | ATA_LOG_SECURITY = 0x06, |
336 | ATA_LOG_SATA_SETTINGS = 0x08, |
337 | ATA_LOG_ZONED_INFORMATION = 0x09, |
338 | |
339 | /* Identify device SATA settings log: */ |
340 | ATA_LOG_DEVSLP_OFFSET = 0x30, |
341 | ATA_LOG_DEVSLP_SIZE = 0x08, |
342 | ATA_LOG_DEVSLP_MDAT = 0x00, |
343 | ATA_LOG_DEVSLP_MDAT_MASK = 0x1F, |
344 | ATA_LOG_DEVSLP_DETO = 0x01, |
345 | ATA_LOG_DEVSLP_VALID = 0x07, |
346 | ATA_LOG_DEVSLP_VALID_MASK = 0x80, |
347 | ATA_LOG_NCQ_PRIO_OFFSET = 0x09, |
348 | |
349 | /* NCQ send and receive log */ |
350 | ATA_LOG_NCQ_SEND_RECV_SUBCMDS_OFFSET = 0x00, |
351 | ATA_LOG_NCQ_SEND_RECV_SUBCMDS_DSM = (1 << 0), |
352 | ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET = 0x04, |
353 | ATA_LOG_NCQ_SEND_RECV_DSM_TRIM = (1 << 0), |
354 | ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET = 0x08, |
355 | ATA_LOG_NCQ_SEND_RECV_RD_LOG_SUPPORTED = (1 << 0), |
356 | ATA_LOG_NCQ_SEND_RECV_WR_LOG_OFFSET = 0x0C, |
357 | ATA_LOG_NCQ_SEND_RECV_WR_LOG_SUPPORTED = (1 << 0), |
358 | ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OFFSET = 0x10, |
359 | ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OUT_SUPPORTED = (1 << 0), |
360 | ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_IN_SUPPORTED = (1 << 1), |
361 | ATA_LOG_NCQ_SEND_RECV_SIZE = 0x14, |
362 | |
363 | /* NCQ Non-Data log */ |
364 | ATA_LOG_NCQ_NON_DATA_SUBCMDS_OFFSET = 0x00, |
365 | ATA_LOG_NCQ_NON_DATA_ABORT_OFFSET = 0x00, |
366 | ATA_LOG_NCQ_NON_DATA_ABORT_NCQ = (1 << 0), |
367 | ATA_LOG_NCQ_NON_DATA_ABORT_ALL = (1 << 1), |
368 | ATA_LOG_NCQ_NON_DATA_ABORT_STREAMING = (1 << 2), |
369 | ATA_LOG_NCQ_NON_DATA_ABORT_NON_STREAMING = (1 << 3), |
370 | ATA_LOG_NCQ_NON_DATA_ABORT_SELECTED = (1 << 4), |
371 | ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OFFSET = 0x1C, |
372 | ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OUT = (1 << 0), |
373 | ATA_LOG_NCQ_NON_DATA_SIZE = 0x40, |
374 | |
375 | /* READ/WRITE LONG (obsolete) */ |
376 | ATA_CMD_READ_LONG = 0x22, |
377 | ATA_CMD_READ_LONG_ONCE = 0x23, |
378 | ATA_CMD_WRITE_LONG = 0x32, |
379 | ATA_CMD_WRITE_LONG_ONCE = 0x33, |
380 | |
381 | /* SETFEATURES stuff */ |
382 | SETFEATURES_XFER = 0x03, |
383 | XFER_UDMA_7 = 0x47, |
384 | XFER_UDMA_6 = 0x46, |
385 | XFER_UDMA_5 = 0x45, |
386 | XFER_UDMA_4 = 0x44, |
387 | XFER_UDMA_3 = 0x43, |
388 | XFER_UDMA_2 = 0x42, |
389 | XFER_UDMA_1 = 0x41, |
390 | XFER_UDMA_0 = 0x40, |
391 | XFER_MW_DMA_4 = 0x24, /* CFA only */ |
392 | XFER_MW_DMA_3 = 0x23, /* CFA only */ |
393 | XFER_MW_DMA_2 = 0x22, |
394 | XFER_MW_DMA_1 = 0x21, |
395 | XFER_MW_DMA_0 = 0x20, |
396 | XFER_SW_DMA_2 = 0x12, |
397 | XFER_SW_DMA_1 = 0x11, |
398 | XFER_SW_DMA_0 = 0x10, |
399 | XFER_PIO_6 = 0x0E, /* CFA only */ |
400 | XFER_PIO_5 = 0x0D, /* CFA only */ |
401 | XFER_PIO_4 = 0x0C, |
402 | XFER_PIO_3 = 0x0B, |
403 | XFER_PIO_2 = 0x0A, |
404 | XFER_PIO_1 = 0x09, |
405 | XFER_PIO_0 = 0x08, |
406 | XFER_PIO_SLOW = 0x00, |
407 | |
408 | SETFEATURES_WC_ON = 0x02, /* Enable write cache */ |
409 | SETFEATURES_WC_OFF = 0x82, /* Disable write cache */ |
410 | |
411 | SETFEATURES_RA_ON = 0xaa, /* Enable read look-ahead */ |
412 | SETFEATURES_RA_OFF = 0x55, /* Disable read look-ahead */ |
413 | |
414 | /* Enable/Disable Automatic Acoustic Management */ |
415 | SETFEATURES_AAM_ON = 0x42, |
416 | SETFEATURES_AAM_OFF = 0xC2, |
417 | |
418 | SETFEATURES_SPINUP = 0x07, /* Spin-up drive */ |
419 | SETFEATURES_SPINUP_TIMEOUT = 30000, /* 30s timeout for drive spin-up from PUIS */ |
420 | |
421 | SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */ |
422 | SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */ |
423 | |
424 | SETFEATURES_CDL = 0x0d, /* Enable/disable cmd duration limits */ |
425 | |
426 | /* SETFEATURE Sector counts for SATA features */ |
427 | SATA_FPDMA_OFFSET = 0x01, /* FPDMA non-zero buffer offsets */ |
428 | SATA_FPDMA_AA = 0x02, /* FPDMA Setup FIS Auto-Activate */ |
429 | SATA_DIPM = 0x03, /* Device Initiated Power Management */ |
430 | SATA_FPDMA_IN_ORDER = 0x04, /* FPDMA in-order data delivery */ |
431 | SATA_AN = 0x05, /* Asynchronous Notification */ |
432 | SATA_SSP = 0x06, /* Software Settings Preservation */ |
433 | SATA_DEVSLP = 0x09, /* Device Sleep */ |
434 | |
435 | SETFEATURE_SENSE_DATA = 0xC3, /* Sense Data Reporting feature */ |
436 | SETFEATURE_SENSE_DATA_SUCC_NCQ = 0xC4, /* Sense Data for successful NCQ commands */ |
437 | |
438 | /* feature values for SET_MAX */ |
439 | ATA_SET_MAX_ADDR = 0x00, |
440 | ATA_SET_MAX_PASSWD = 0x01, |
441 | ATA_SET_MAX_LOCK = 0x02, |
442 | ATA_SET_MAX_UNLOCK = 0x03, |
443 | ATA_SET_MAX_FREEZE_LOCK = 0x04, |
444 | ATA_SET_MAX_PASSWD_DMA = 0x05, |
445 | ATA_SET_MAX_UNLOCK_DMA = 0x06, |
446 | |
447 | /* feature values for DEVICE CONFIGURATION OVERLAY */ |
448 | ATA_DCO_RESTORE = 0xC0, |
449 | ATA_DCO_FREEZE_LOCK = 0xC1, |
450 | ATA_DCO_IDENTIFY = 0xC2, |
451 | ATA_DCO_SET = 0xC3, |
452 | |
453 | /* feature values for SMART */ |
454 | ATA_SMART_ENABLE = 0xD8, |
455 | ATA_SMART_READ_VALUES = 0xD0, |
456 | ATA_SMART_READ_THRESHOLDS = 0xD1, |
457 | |
458 | /* feature values for Data Set Management */ |
459 | ATA_DSM_TRIM = 0x01, |
460 | |
461 | /* password used in LBA Mid / LBA High for executing SMART commands */ |
462 | ATA_SMART_LBAM_PASS = 0x4F, |
463 | ATA_SMART_LBAH_PASS = 0xC2, |
464 | |
465 | /* ATAPI stuff */ |
466 | ATAPI_PKT_DMA = (1 << 0), |
467 | ATAPI_DMADIR = (1 << 2), /* ATAPI data dir: |
468 | 0=to device, 1=to host */ |
469 | ATAPI_CDB_LEN = 16, |
470 | |
471 | /* PMP stuff */ |
472 | SATA_PMP_MAX_PORTS = 15, |
473 | SATA_PMP_CTRL_PORT = 15, |
474 | |
475 | SATA_PMP_GSCR_DWORDS = 128, |
476 | SATA_PMP_GSCR_PROD_ID = 0, |
477 | SATA_PMP_GSCR_REV = 1, |
478 | SATA_PMP_GSCR_PORT_INFO = 2, |
479 | SATA_PMP_GSCR_ERROR = 32, |
480 | SATA_PMP_GSCR_ERROR_EN = 33, |
481 | SATA_PMP_GSCR_FEAT = 64, |
482 | SATA_PMP_GSCR_FEAT_EN = 96, |
483 | |
484 | SATA_PMP_PSCR_STATUS = 0, |
485 | SATA_PMP_PSCR_ERROR = 1, |
486 | SATA_PMP_PSCR_CONTROL = 2, |
487 | |
488 | SATA_PMP_FEAT_BIST = (1 << 0), |
489 | SATA_PMP_FEAT_PMREQ = (1 << 1), |
490 | SATA_PMP_FEAT_DYNSSC = (1 << 2), |
491 | SATA_PMP_FEAT_NOTIFY = (1 << 3), |
492 | |
493 | /* cable types */ |
494 | ATA_CBL_NONE = 0, |
495 | ATA_CBL_PATA40 = 1, |
496 | ATA_CBL_PATA80 = 2, |
497 | ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */ |
498 | ATA_CBL_PATA_UNK = 4, /* don't know, maybe 80c? */ |
499 | ATA_CBL_PATA_IGN = 5, /* don't know, ignore cable handling */ |
500 | ATA_CBL_SATA = 6, |
501 | |
502 | /* SATA Status and Control Registers */ |
503 | SCR_STATUS = 0, |
504 | SCR_ERROR = 1, |
505 | SCR_CONTROL = 2, |
506 | SCR_ACTIVE = 3, |
507 | SCR_NOTIFICATION = 4, |
508 | |
509 | /* SError bits */ |
510 | SERR_DATA_RECOVERED = (1 << 0), /* recovered data error */ |
511 | SERR_COMM_RECOVERED = (1 << 1), /* recovered comm failure */ |
512 | SERR_DATA = (1 << 8), /* unrecovered data error */ |
513 | SERR_PERSISTENT = (1 << 9), /* persistent data/comm error */ |
514 | SERR_PROTOCOL = (1 << 10), /* protocol violation */ |
515 | SERR_INTERNAL = (1 << 11), /* host internal error */ |
516 | SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */ |
517 | SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */ |
518 | SERR_COMM_WAKE = (1 << 18), /* Comm wake */ |
519 | SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */ |
520 | SERR_DISPARITY = (1 << 20), /* Disparity */ |
521 | SERR_CRC = (1 << 21), /* CRC error */ |
522 | SERR_HANDSHAKE = (1 << 22), /* Handshake error */ |
523 | SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */ |
524 | SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */ |
525 | SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */ |
526 | SERR_DEV_XCHG = (1 << 26), /* device exchanged */ |
527 | }; |
528 | |
529 | enum ata_prot_flags { |
530 | /* protocol flags */ |
531 | ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */ |
532 | ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */ |
533 | ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */ |
534 | ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */ |
535 | |
536 | /* taskfile protocols */ |
537 | ATA_PROT_UNKNOWN = (u8)-1, |
538 | ATA_PROT_NODATA = 0, |
539 | ATA_PROT_PIO = ATA_PROT_FLAG_PIO, |
540 | ATA_PROT_DMA = ATA_PROT_FLAG_DMA, |
541 | ATA_PROT_NCQ_NODATA = ATA_PROT_FLAG_NCQ, |
542 | ATA_PROT_NCQ = ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ, |
543 | ATAPI_PROT_NODATA = ATA_PROT_FLAG_ATAPI, |
544 | ATAPI_PROT_PIO = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO, |
545 | ATAPI_PROT_DMA = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA, |
546 | }; |
547 | |
548 | enum ata_ioctls { |
549 | ATA_IOC_GET_IO32 = 0x309, /* HDIO_GET_32BIT */ |
550 | ATA_IOC_SET_IO32 = 0x324, /* HDIO_SET_32BIT */ |
551 | }; |
552 | |
553 | /* core structures */ |
554 | |
555 | struct ata_bmdma_prd { |
556 | __le32 addr; |
557 | __le32 flags_len; |
558 | }; |
559 | |
560 | /* |
561 | * id tests |
562 | */ |
563 | #define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0) |
564 | #define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9)) |
565 | #define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (1 << 8)) |
566 | #define ata_id_has_ncq(id) ((id)[ATA_ID_SATA_CAPABILITY] & (1 << 8)) |
567 | #define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1) |
568 | #define ata_id_removable(id) ((id)[ATA_ID_CONFIG] & (1 << 7)) |
569 | #define ata_id_has_atapi_AN(id) \ |
570 | ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ |
571 | ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ |
572 | ((id)[ATA_ID_FEATURE_SUPP] & (1 << 5))) |
573 | #define ata_id_has_fpdma_aa(id) \ |
574 | ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ |
575 | ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ |
576 | ((id)[ATA_ID_FEATURE_SUPP] & (1 << 2))) |
577 | #define ata_id_has_devslp(id) \ |
578 | ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ |
579 | ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ |
580 | ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8))) |
581 | #define ata_id_has_ncq_autosense(id) \ |
582 | ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ |
583 | ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ |
584 | ((id)[ATA_ID_FEATURE_SUPP] & (1 << 7))) |
585 | #define ata_id_has_dipm(id) \ |
586 | ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ |
587 | ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ |
588 | ((id)[ATA_ID_FEATURE_SUPP] & (1 << 3))) |
589 | #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10)) |
590 | #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11)) |
591 | #define ata_id_u32(id,n) \ |
592 | (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)])) |
593 | #define ata_id_u64(id,n) \ |
594 | ( ((u64) (id)[(n) + 3] << 48) | \ |
595 | ((u64) (id)[(n) + 2] << 32) | \ |
596 | ((u64) (id)[(n) + 1] << 16) | \ |
597 | ((u64) (id)[(n) + 0]) ) |
598 | |
599 | #define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20) |
600 | #define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4)) |
601 | |
602 | static inline bool ata_id_has_hipm(const u16 *id) |
603 | { |
604 | u16 val = id[ATA_ID_SATA_CAPABILITY]; |
605 | |
606 | if (val == 0 || val == 0xffff) |
607 | return false; |
608 | |
609 | return val & (1 << 9); |
610 | } |
611 | |
612 | static inline bool ata_id_has_fua(const u16 *id) |
613 | { |
614 | if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000) |
615 | return false; |
616 | return id[ATA_ID_CFSSE] & (1 << 6); |
617 | } |
618 | |
619 | static inline bool ata_id_has_flush(const u16 *id) |
620 | { |
621 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
622 | return false; |
623 | return id[ATA_ID_COMMAND_SET_2] & (1 << 12); |
624 | } |
625 | |
626 | static inline bool ata_id_has_flush_ext(const u16 *id) |
627 | { |
628 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
629 | return false; |
630 | return id[ATA_ID_COMMAND_SET_2] & (1 << 13); |
631 | } |
632 | |
633 | static inline u32 ata_id_logical_sector_size(const u16 *id) |
634 | { |
635 | /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. |
636 | * IDENTIFY DEVICE data, word 117-118. |
637 | * 0xd000 ignores bit 13 (logical:physical > 1) |
638 | */ |
639 | if ((id[ATA_ID_SECTOR_SIZE] & 0xd000) == 0x5000) |
640 | return (((id[ATA_ID_LOGICAL_SECTOR_SIZE+1] << 16) |
641 | + id[ATA_ID_LOGICAL_SECTOR_SIZE]) * sizeof(u16)) ; |
642 | return ATA_SECT_SIZE; |
643 | } |
644 | |
645 | static inline u8 ata_id_log2_per_physical_sector(const u16 *id) |
646 | { |
647 | /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. |
648 | * IDENTIFY DEVICE data, word 106. |
649 | * 0xe000 ignores bit 12 (logical sector > 512 bytes) |
650 | */ |
651 | if ((id[ATA_ID_SECTOR_SIZE] & 0xe000) == 0x6000) |
652 | return (id[ATA_ID_SECTOR_SIZE] & 0xf); |
653 | return 0; |
654 | } |
655 | |
656 | /* Offset of logical sectors relative to physical sectors. |
657 | * |
658 | * If device has more than one logical sector per physical sector |
659 | * (aka 512 byte emulation), vendors might offset the "sector 0" address |
660 | * so sector 63 is "naturally aligned" - e.g. FAT partition table. |
661 | * This avoids Read/Mod/Write penalties when using FAT partition table |
662 | * and updating "well aligned" (FS perspective) physical sectors on every |
663 | * transaction. |
664 | */ |
665 | static inline u16 ata_id_logical_sector_offset(const u16 *id, |
666 | u8 log2_per_phys) |
667 | { |
668 | u16 word_209 = id[209]; |
669 | |
670 | if ((log2_per_phys > 1) && (word_209 & 0xc000) == 0x4000) { |
671 | u16 first = word_209 & 0x3fff; |
672 | if (first > 0) |
673 | return (1 << log2_per_phys) - first; |
674 | } |
675 | return 0; |
676 | } |
677 | |
678 | static inline bool ata_id_has_lba48(const u16 *id) |
679 | { |
680 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
681 | return false; |
682 | if (!ata_id_u64(id, ATA_ID_LBA_CAPACITY_2)) |
683 | return false; |
684 | return id[ATA_ID_COMMAND_SET_2] & (1 << 10); |
685 | } |
686 | |
687 | static inline bool ata_id_hpa_enabled(const u16 *id) |
688 | { |
689 | /* Yes children, word 83 valid bits cover word 82 data */ |
690 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
691 | return false; |
692 | /* And 87 covers 85-87 */ |
693 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
694 | return false; |
695 | /* Check command sets enabled as well as supported */ |
696 | if ((id[ATA_ID_CFS_ENABLE_1] & (1 << 10)) == 0) |
697 | return false; |
698 | return id[ATA_ID_COMMAND_SET_1] & (1 << 10); |
699 | } |
700 | |
701 | static inline bool ata_id_has_wcache(const u16 *id) |
702 | { |
703 | /* Yes children, word 83 valid bits cover word 82 data */ |
704 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
705 | return false; |
706 | return id[ATA_ID_COMMAND_SET_1] & (1 << 5); |
707 | } |
708 | |
709 | static inline bool ata_id_has_pm(const u16 *id) |
710 | { |
711 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
712 | return false; |
713 | return id[ATA_ID_COMMAND_SET_1] & (1 << 3); |
714 | } |
715 | |
716 | static inline bool ata_id_rahead_enabled(const u16 *id) |
717 | { |
718 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
719 | return false; |
720 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 6); |
721 | } |
722 | |
723 | static inline bool ata_id_wcache_enabled(const u16 *id) |
724 | { |
725 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
726 | return false; |
727 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 5); |
728 | } |
729 | |
730 | static inline bool ata_id_has_read_log_dma_ext(const u16 *id) |
731 | { |
732 | /* Word 86 must have bit 15 set */ |
733 | if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) |
734 | return false; |
735 | |
736 | /* READ LOG DMA EXT support can be signaled either from word 119 |
737 | * or from word 120. The format is the same for both words: Bit |
738 | * 15 must be cleared, bit 14 set and bit 3 set. |
739 | */ |
740 | if ((id[ATA_ID_COMMAND_SET_3] & 0xC008) == 0x4008 || |
741 | (id[ATA_ID_COMMAND_SET_4] & 0xC008) == 0x4008) |
742 | return true; |
743 | |
744 | return false; |
745 | } |
746 | |
747 | static inline bool ata_id_has_sense_reporting(const u16 *id) |
748 | { |
749 | if (!(id[ATA_ID_CFS_ENABLE_2] & BIT(15))) |
750 | return false; |
751 | if ((id[ATA_ID_COMMAND_SET_3] & (BIT(15) | BIT(14))) != BIT(14)) |
752 | return false; |
753 | return id[ATA_ID_COMMAND_SET_3] & BIT(6); |
754 | } |
755 | |
756 | static inline bool ata_id_sense_reporting_enabled(const u16 *id) |
757 | { |
758 | if (!ata_id_has_sense_reporting(id)) |
759 | return false; |
760 | /* ata_id_has_sense_reporting() == true, word 86 must have bit 15 set */ |
761 | if ((id[ATA_ID_COMMAND_SET_4] & (BIT(15) | BIT(14))) != BIT(14)) |
762 | return false; |
763 | return id[ATA_ID_COMMAND_SET_4] & BIT(6); |
764 | } |
765 | |
766 | /** |
767 | * |
768 | * Word: 206 - SCT Command Transport |
769 | * 15:12 - Vendor Specific |
770 | * 11:6 - Reserved |
771 | * 5 - SCT Command Transport Data Tables supported |
772 | * 4 - SCT Command Transport Features Control supported |
773 | * 3 - SCT Command Transport Error Recovery Control supported |
774 | * 2 - SCT Command Transport Write Same supported |
775 | * 1 - SCT Command Transport Long Sector Access supported |
776 | * 0 - SCT Command Transport supported |
777 | */ |
778 | static inline bool ata_id_sct_data_tables(const u16 *id) |
779 | { |
780 | return id[ATA_ID_SCT_CMD_XPORT] & (1 << 5) ? true : false; |
781 | } |
782 | |
783 | static inline bool ata_id_sct_features_ctrl(const u16 *id) |
784 | { |
785 | return id[ATA_ID_SCT_CMD_XPORT] & (1 << 4) ? true : false; |
786 | } |
787 | |
788 | static inline bool ata_id_sct_error_recovery_ctrl(const u16 *id) |
789 | { |
790 | return id[ATA_ID_SCT_CMD_XPORT] & (1 << 3) ? true : false; |
791 | } |
792 | |
793 | static inline bool ata_id_sct_long_sector_access(const u16 *id) |
794 | { |
795 | return id[ATA_ID_SCT_CMD_XPORT] & (1 << 1) ? true : false; |
796 | } |
797 | |
798 | static inline bool ata_id_sct_supported(const u16 *id) |
799 | { |
800 | return id[ATA_ID_SCT_CMD_XPORT] & (1 << 0) ? true : false; |
801 | } |
802 | |
803 | /** |
804 | * ata_id_major_version - get ATA level of drive |
805 | * @id: Identify data |
806 | * |
807 | * Caveats: |
808 | * ATA-1 considers identify optional |
809 | * ATA-2 introduces mandatory identify |
810 | * ATA-3 introduces word 80 and accurate reporting |
811 | * |
812 | * The practical impact of this is that ata_id_major_version cannot |
813 | * reliably report on drives below ATA3. |
814 | */ |
815 | |
816 | static inline unsigned int ata_id_major_version(const u16 *id) |
817 | { |
818 | unsigned int mver; |
819 | |
820 | if (id[ATA_ID_MAJOR_VER] == 0xFFFF) |
821 | return 0; |
822 | |
823 | for (mver = 14; mver >= 1; mver--) |
824 | if (id[ATA_ID_MAJOR_VER] & (1 << mver)) |
825 | break; |
826 | return mver; |
827 | } |
828 | |
829 | static inline bool ata_id_is_sata(const u16 *id) |
830 | { |
831 | /* |
832 | * See if word 93 is 0 AND drive is at least ATA-5 compatible |
833 | * verifying that word 80 by casting it to a signed type -- |
834 | * this trick allows us to filter out the reserved values of |
835 | * 0x0000 and 0xffff along with the earlier ATA revisions... |
836 | */ |
837 | if (id[ATA_ID_HW_CONFIG] == 0 && (short)id[ATA_ID_MAJOR_VER] >= 0x0020) |
838 | return true; |
839 | return false; |
840 | } |
841 | |
842 | static inline bool ata_id_has_tpm(const u16 *id) |
843 | { |
844 | /* The TPM bits are only valid on ATA8 */ |
845 | if (ata_id_major_version(id) < 8) |
846 | return false; |
847 | if ((id[48] & 0xC000) != 0x4000) |
848 | return false; |
849 | return id[48] & (1 << 0); |
850 | } |
851 | |
852 | static inline bool ata_id_has_dword_io(const u16 *id) |
853 | { |
854 | /* ATA 8 reuses this flag for "trusted" computing */ |
855 | if (ata_id_major_version(id) > 7) |
856 | return false; |
857 | return id[ATA_ID_DWORD_IO] & (1 << 0); |
858 | } |
859 | |
860 | static inline bool ata_id_has_trusted(const u16 *id) |
861 | { |
862 | if (ata_id_major_version(id) <= 7) |
863 | return false; |
864 | return id[ATA_ID_TRUSTED] & (1 << 0); |
865 | } |
866 | |
867 | static inline bool ata_id_has_unload(const u16 *id) |
868 | { |
869 | if (ata_id_major_version(id) >= 7 && |
870 | (id[ATA_ID_CFSSE] & 0xC000) == 0x4000 && |
871 | id[ATA_ID_CFSSE] & (1 << 13)) |
872 | return true; |
873 | return false; |
874 | } |
875 | |
876 | static inline bool ata_id_has_wwn(const u16 *id) |
877 | { |
878 | return (id[ATA_ID_CSF_DEFAULT] & 0xC100) == 0x4100; |
879 | } |
880 | |
881 | static inline int ata_id_form_factor(const u16 *id) |
882 | { |
883 | u16 val = id[168]; |
884 | |
885 | if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) |
886 | return 0; |
887 | |
888 | val &= 0xf; |
889 | |
890 | if (val > 5) |
891 | return 0; |
892 | |
893 | return val; |
894 | } |
895 | |
896 | static inline int ata_id_rotation_rate(const u16 *id) |
897 | { |
898 | u16 val = id[217]; |
899 | |
900 | if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) |
901 | return 0; |
902 | |
903 | if (val > 1 && val < 0x401) |
904 | return 0; |
905 | |
906 | return val; |
907 | } |
908 | |
909 | static inline bool ata_id_has_ncq_send_and_recv(const u16 *id) |
910 | { |
911 | return id[ATA_ID_SATA_CAPABILITY_2] & BIT(6); |
912 | } |
913 | |
914 | static inline bool ata_id_has_ncq_non_data(const u16 *id) |
915 | { |
916 | return id[ATA_ID_SATA_CAPABILITY_2] & BIT(5); |
917 | } |
918 | |
919 | static inline bool ata_id_has_ncq_prio(const u16 *id) |
920 | { |
921 | return id[ATA_ID_SATA_CAPABILITY] & BIT(12); |
922 | } |
923 | |
924 | static inline bool ata_id_has_trim(const u16 *id) |
925 | { |
926 | if (ata_id_major_version(id) >= 7 && |
927 | (id[ATA_ID_DATA_SET_MGMT] & 1)) |
928 | return true; |
929 | return false; |
930 | } |
931 | |
932 | static inline bool ata_id_has_zero_after_trim(const u16 *id) |
933 | { |
934 | /* DSM supported, deterministic read, and read zero after trim set */ |
935 | if (ata_id_has_trim(id) && |
936 | (id[ATA_ID_ADDITIONAL_SUPP] & 0x4020) == 0x4020) |
937 | return true; |
938 | |
939 | return false; |
940 | } |
941 | |
942 | static inline bool ata_id_current_chs_valid(const u16 *id) |
943 | { |
944 | /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command |
945 | has not been issued to the device then the values of |
946 | id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */ |
947 | return (id[ATA_ID_FIELD_VALID] & 1) && /* Current translation valid */ |
948 | id[ATA_ID_CUR_CYLS] && /* cylinders in current translation */ |
949 | id[ATA_ID_CUR_HEADS] && /* heads in current translation */ |
950 | id[ATA_ID_CUR_HEADS] <= 16 && |
951 | id[ATA_ID_CUR_SECTORS]; /* sectors in current translation */ |
952 | } |
953 | |
954 | static inline bool ata_id_is_cfa(const u16 *id) |
955 | { |
956 | if ((id[ATA_ID_CONFIG] == 0x848A) || /* Traditional CF */ |
957 | (id[ATA_ID_CONFIG] == 0x844A)) /* Delkin Devices CF */ |
958 | return true; |
959 | /* |
960 | * CF specs don't require specific value in the word 0 anymore and yet |
961 | * they forbid to report the ATA version in the word 80 and require the |
962 | * CFA feature set support to be indicated in the word 83 in this case. |
963 | * Unfortunately, some cards only follow either of this requirements, |
964 | * and while those that don't indicate CFA feature support need some |
965 | * sort of quirk list, it seems impractical for the ones that do... |
966 | */ |
967 | return (id[ATA_ID_COMMAND_SET_2] & 0xC004) == 0x4004; |
968 | } |
969 | |
970 | static inline bool ata_id_is_ssd(const u16 *id) |
971 | { |
972 | return id[ATA_ID_ROT_SPEED] == 0x01; |
973 | } |
974 | |
975 | static inline u8 ata_id_zoned_cap(const u16 *id) |
976 | { |
977 | return (id[ATA_ID_ADDITIONAL_SUPP] & 0x3); |
978 | } |
979 | |
980 | static inline bool ata_id_pio_need_iordy(const u16 *id, const u8 pio) |
981 | { |
982 | /* CF spec. r4.1 Table 22 says no IORDY on PIO5 and PIO6. */ |
983 | if (pio > 4 && ata_id_is_cfa(id)) |
984 | return false; |
985 | /* For PIO3 and higher it is mandatory. */ |
986 | if (pio > 2) |
987 | return true; |
988 | /* Turn it on when possible. */ |
989 | return ata_id_has_iordy(id); |
990 | } |
991 | |
992 | static inline bool ata_drive_40wire(const u16 *dev_id) |
993 | { |
994 | if (ata_id_is_sata(id: dev_id)) |
995 | return false; /* SATA */ |
996 | if ((dev_id[ATA_ID_HW_CONFIG] & 0xE000) == 0x6000) |
997 | return false; /* 80 wire */ |
998 | return true; |
999 | } |
1000 | |
1001 | static inline bool ata_drive_40wire_relaxed(const u16 *dev_id) |
1002 | { |
1003 | if ((dev_id[ATA_ID_HW_CONFIG] & 0x2000) == 0x2000) |
1004 | return false; /* 80 wire */ |
1005 | return true; |
1006 | } |
1007 | |
1008 | static inline int atapi_cdb_len(const u16 *dev_id) |
1009 | { |
1010 | u16 tmp = dev_id[ATA_ID_CONFIG] & 0x3; |
1011 | switch (tmp) { |
1012 | case 0: return 12; |
1013 | case 1: return 16; |
1014 | default: return -1; |
1015 | } |
1016 | } |
1017 | |
1018 | static inline int atapi_command_packet_set(const u16 *dev_id) |
1019 | { |
1020 | return (dev_id[ATA_ID_CONFIG] >> 8) & 0x1f; |
1021 | } |
1022 | |
1023 | static inline bool atapi_id_dmadir(const u16 *dev_id) |
1024 | { |
1025 | return ata_id_major_version(id: dev_id) >= 7 && (dev_id[62] & 0x8000); |
1026 | } |
1027 | |
1028 | static inline bool ata_ok(u8 status) |
1029 | { |
1030 | return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR)) |
1031 | == ATA_DRDY); |
1032 | } |
1033 | |
1034 | static inline bool lba_28_ok(u64 block, u32 n_block) |
1035 | { |
1036 | /* check the ending block number: must be LESS THAN 0x0fffffff */ |
1037 | return ((block + n_block) < ((1 << 28) - 1)) && (n_block <= ATA_MAX_SECTORS); |
1038 | } |
1039 | |
1040 | static inline bool lba_48_ok(u64 block, u32 n_block) |
1041 | { |
1042 | /* check the ending block number */ |
1043 | return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= ATA_MAX_SECTORS_LBA48); |
1044 | } |
1045 | |
1046 | #define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff) |
1047 | #define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16) |
1048 | #define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff) |
1049 | #define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf) |
1050 | |
1051 | #endif /* __LINUX_ATA_H__ */ |
1052 | |