Commit | Line | Data |
---|---|---|
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 | ||
32 | #include <linux/types.h> | |
93734a23 | 33 | #include <asm/byteorder.h> |
1da177e4 LT |
34 | |
35 | /* defines only for the constants which don't work well as enums */ | |
36 | #define ATA_DMA_BOUNDARY 0xffffUL | |
37 | #define ATA_DMA_MASK 0xffffffffULL | |
38 | ||
39 | enum { | |
40 | /* various global constants */ | |
41 | ATA_MAX_DEVICES = 2, /* per bus/port */ | |
42 | ATA_MAX_PRD = 256, /* we could make these 256/256 */ | |
43 | ATA_SECT_SIZE = 512, | |
18d6e9d5 | 44 | ATA_MAX_SECTORS_128 = 128, |
8b881b04 JG |
45 | ATA_MAX_SECTORS = 256, |
46 | ATA_MAX_SECTORS_LBA48 = 65535,/* TODO: 65536? */ | |
f8d8e579 | 47 | ATA_MAX_SECTORS_TAPE = 65535, |
1da177e4 LT |
48 | |
49 | ATA_ID_WORDS = 256, | |
37014c64 BZ |
50 | ATA_ID_CONFIG = 0, |
51 | ATA_ID_CYLS = 1, | |
52 | ATA_ID_HEADS = 3, | |
53 | ATA_ID_SECTORS = 6, | |
a0cf733b | 54 | ATA_ID_SERNO = 10, |
37014c64 | 55 | ATA_ID_BUF_SIZE = 21, |
a0cf733b TH |
56 | ATA_ID_FW_REV = 23, |
57 | ATA_ID_PROD = 27, | |
37014c64 BZ |
58 | ATA_ID_MAX_MULTSECT = 47, |
59 | ATA_ID_DWORD_IO = 48, | |
60 | ATA_ID_CAPABILITY = 49, | |
11e29e21 | 61 | ATA_ID_OLD_PIO_MODES = 51, |
37014c64 | 62 | ATA_ID_OLD_DMA_MODES = 52, |
11e29e21 | 63 | ATA_ID_FIELD_VALID = 53, |
37014c64 BZ |
64 | ATA_ID_CUR_CYLS = 54, |
65 | ATA_ID_CUR_HEADS = 55, | |
66 | ATA_ID_CUR_SECTORS = 56, | |
67 | ATA_ID_MULTSECT = 59, | |
68 | ATA_ID_LBA_CAPACITY = 60, | |
69 | ATA_ID_SWDMA_MODES = 62, | |
1da177e4 | 70 | ATA_ID_MWDMA_MODES = 63, |
11e29e21 AC |
71 | ATA_ID_PIO_MODES = 64, |
72 | ATA_ID_EIDE_DMA_MIN = 65, | |
37014c64 | 73 | ATA_ID_EIDE_DMA_TIME = 66, |
11e29e21 AC |
74 | ATA_ID_EIDE_PIO = 67, |
75 | ATA_ID_EIDE_PIO_IORDY = 68, | |
37014c64 | 76 | ATA_ID_QUEUE_DEPTH = 75, |
11e29e21 | 77 | ATA_ID_MAJOR_VER = 80, |
37014c64 BZ |
78 | ATA_ID_COMMAND_SET_1 = 82, |
79 | ATA_ID_COMMAND_SET_2 = 83, | |
80 | ATA_ID_CFSSE = 84, | |
81 | ATA_ID_CFS_ENABLE_1 = 85, | |
82 | ATA_ID_CFS_ENABLE_2 = 86, | |
83 | ATA_ID_CSF_DEFAULT = 87, | |
84 | ATA_ID_UDMA_MODES = 88, | |
85 | ATA_ID_HW_CONFIG = 93, | |
86 | ATA_ID_SPG = 98, | |
87 | ATA_ID_LBA_CAPACITY_2 = 100, | |
88 | ATA_ID_LAST_LUN = 126, | |
89 | ATA_ID_DLF = 128, | |
90 | ATA_ID_CSFO = 129, | |
91 | ATA_ID_CFA_POWER = 160, | |
d42ad15b SS |
92 | ATA_ID_CFA_KEY_MGMT = 162, |
93 | ATA_ID_CFA_MODES = 163, | |
8bff7c6b | 94 | ATA_ID_ROT_SPEED = 217, |
1da177e4 LT |
95 | ATA_ID_PIO4 = (1 << 1), |
96 | ||
a0cf733b TH |
97 | ATA_ID_SERNO_LEN = 20, |
98 | ATA_ID_FW_REV_LEN = 8, | |
99 | ATA_ID_PROD_LEN = 40, | |
100 | ||
1da177e4 | 101 | ATA_PCI_CTL_OFS = 2, |
4099d143 BZ |
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 | ||
22ddbd1e EIB |
111 | ATA_PIO4_ONLY = (1 << 4), |
112 | ||
91a6d4ed BZ |
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), | |
22ddbd1e EIB |
122 | ATA_MWDMA3 = ATA_MWDMA2 | (1 << 3), |
123 | ATA_MWDMA4 = ATA_MWDMA3 | (1 << 4), | |
91a6d4ed BZ |
124 | |
125 | ATA_MWDMA12_ONLY = (1 << 1) | (1 << 2), | |
126 | ATA_MWDMA2_ONLY = (1 << 2), | |
127 | ||
1da177e4 LT |
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 | ||
22ddbd1e EIB |
138 | ATA_UDMA24_ONLY = (1 << 2) | (1 << 4), |
139 | ||
1da177e4 LT |
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 */ | |
b5911620 | 166 | ATA_DSC = (1 << 4), /* drive seek complete */ |
1da177e4 | 167 | ATA_DRQ = (1 << 3), /* data request i/o */ |
b5911620 BZ |
168 | ATA_CORR = (1 << 2), /* corrected data error */ |
169 | ATA_IDX = (1 << 1), /* index */ | |
1da177e4 LT |
170 | ATA_ERR = (1 << 0), /* have an error */ |
171 | ATA_SRST = (1 << 2), /* software reset */ | |
9be1e979 | 172 | ATA_ICRC = (1 << 7), /* interface CRC error */ |
b5911620 | 173 | ATA_BBK = ATA_ICRC, /* pre-EIDE: block marked bad */ |
9be1e979 | 174 | ATA_UNC = (1 << 6), /* uncorrectable media error */ |
b5911620 | 175 | ATA_MC = (1 << 5), /* media changed */ |
9be1e979 | 176 | ATA_IDNF = (1 << 4), /* ID not found */ |
b5911620 | 177 | ATA_MCR = (1 << 3), /* media change requested */ |
1da177e4 | 178 | ATA_ABORTED = (1 << 2), /* command aborted */ |
b5911620 BZ |
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), | |
1da177e4 LT |
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 */ | |
ab2181cf | 205 | ATA_CMD_DEV_RESET = 0x08, /* ATAPI device reset */ |
1da177e4 | 206 | ATA_CMD_CHK_POWER = 0xE5, /* check power mode */ |
972dcafb DG |
207 | ATA_CMD_STANDBY = 0xE2, /* place in standby power mode */ |
208 | ATA_CMD_IDLE = 0xE3, /* place in idle power mode */ | |
1da177e4 LT |
209 | ATA_CMD_EDD = 0x90, /* execute device diagnostic */ |
210 | ATA_CMD_FLUSH = 0xE7, | |
211 | ATA_CMD_FLUSH_EXT = 0xEA, | |
212 | ATA_CMD_ID_ATA = 0xEC, | |
213 | ATA_CMD_ID_ATAPI = 0xA1, | |
214 | ATA_CMD_READ = 0xC8, | |
215 | ATA_CMD_READ_EXT = 0x25, | |
216 | ATA_CMD_WRITE = 0xCA, | |
217 | ATA_CMD_WRITE_EXT = 0x35, | |
9a3dccc4 | 218 | ATA_CMD_WRITE_FUA_EXT = 0x3D, |
88e49034 TH |
219 | ATA_CMD_FPDMA_READ = 0x60, |
220 | ATA_CMD_FPDMA_WRITE = 0x61, | |
1da177e4 LT |
221 | ATA_CMD_PIO_READ = 0x20, |
222 | ATA_CMD_PIO_READ_EXT = 0x24, | |
223 | ATA_CMD_PIO_WRITE = 0x30, | |
224 | ATA_CMD_PIO_WRITE_EXT = 0x34, | |
8cbd6df1 AL |
225 | ATA_CMD_READ_MULTI = 0xC4, |
226 | ATA_CMD_READ_MULTI_EXT = 0x29, | |
227 | ATA_CMD_WRITE_MULTI = 0xC5, | |
228 | ATA_CMD_WRITE_MULTI_EXT = 0x39, | |
9a3dccc4 | 229 | ATA_CMD_WRITE_MULTI_FUA_EXT = 0xCE, |
1da177e4 | 230 | ATA_CMD_SET_FEATURES = 0xEF, |
2c3d2a46 | 231 | ATA_CMD_SET_MULTI = 0xC6, |
1da177e4 LT |
232 | ATA_CMD_PACKET = 0xA0, |
233 | ATA_CMD_VERIFY = 0x40, | |
234 | ATA_CMD_VERIFY_EXT = 0x42, | |
2dcb407e JG |
235 | ATA_CMD_STANDBYNOW1 = 0xE0, |
236 | ATA_CMD_IDLEIMMEDIATE = 0xE1, | |
054a5fba | 237 | ATA_CMD_SLEEP = 0xE6, |
8bf62ece | 238 | ATA_CMD_INIT_DEV_PARAMS = 0x91, |
b6782728 AC |
239 | ATA_CMD_READ_NATIVE_MAX = 0xF8, |
240 | ATA_CMD_READ_NATIVE_MAX_EXT = 0x27, | |
1e999736 AC |
241 | ATA_CMD_SET_MAX = 0xF9, |
242 | ATA_CMD_SET_MAX_EXT = 0x37, | |
88e49034 | 243 | ATA_CMD_READ_LOG_EXT = 0x2f, |
814600ee TH |
244 | ATA_CMD_PMP_READ = 0xE4, |
245 | ATA_CMD_PMP_WRITE = 0xE8, | |
ce2e0abb TH |
246 | ATA_CMD_CONF_OVERLAY = 0xB1, |
247 | ATA_CMD_SEC_FREEZE_LOCK = 0xF5, | |
476d9894 BZ |
248 | ATA_CMD_SMART = 0xB0, |
249 | ATA_CMD_MEDIA_LOCK = 0xDE, | |
250 | ATA_CMD_MEDIA_UNLOCK = 0xDF, | |
251 | /* marked obsolete in the ATA/ATAPI-7 spec */ | |
252 | ATA_CMD_RESTORE = 0x10, | |
253 | /* EXABYTE specific */ | |
254 | ATA_EXABYTE_ENABLE_NEST = 0xF0, | |
88e49034 TH |
255 | |
256 | /* READ_LOG_EXT pages */ | |
257 | ATA_LOG_SATA_NCQ = 0x10, | |
1da177e4 | 258 | |
5a5dbd18 ML |
259 | /* READ/WRITE LONG (obsolete) */ |
260 | ATA_CMD_READ_LONG = 0x22, | |
261 | ATA_CMD_READ_LONG_ONCE = 0x23, | |
262 | ATA_CMD_WRITE_LONG = 0x32, | |
263 | ATA_CMD_WRITE_LONG_ONCE = 0x33, | |
264 | ||
1da177e4 LT |
265 | /* SETFEATURES stuff */ |
266 | SETFEATURES_XFER = 0x03, | |
267 | XFER_UDMA_7 = 0x47, | |
268 | XFER_UDMA_6 = 0x46, | |
269 | XFER_UDMA_5 = 0x45, | |
270 | XFER_UDMA_4 = 0x44, | |
271 | XFER_UDMA_3 = 0x43, | |
272 | XFER_UDMA_2 = 0x42, | |
273 | XFER_UDMA_1 = 0x41, | |
274 | XFER_UDMA_0 = 0x40, | |
b352e57d AC |
275 | XFER_MW_DMA_4 = 0x24, /* CFA only */ |
276 | XFER_MW_DMA_3 = 0x23, /* CFA only */ | |
1da177e4 LT |
277 | XFER_MW_DMA_2 = 0x22, |
278 | XFER_MW_DMA_1 = 0x21, | |
279 | XFER_MW_DMA_0 = 0x20, | |
b4b52db7 AC |
280 | XFER_SW_DMA_2 = 0x12, |
281 | XFER_SW_DMA_1 = 0x11, | |
282 | XFER_SW_DMA_0 = 0x10, | |
b352e57d AC |
283 | XFER_PIO_6 = 0x0E, /* CFA only */ |
284 | XFER_PIO_5 = 0x0D, /* CFA only */ | |
1da177e4 LT |
285 | XFER_PIO_4 = 0x0C, |
286 | XFER_PIO_3 = 0x0B, | |
287 | XFER_PIO_2 = 0x0A, | |
288 | XFER_PIO_1 = 0x09, | |
289 | XFER_PIO_0 = 0x08, | |
1da177e4 LT |
290 | XFER_PIO_SLOW = 0x00, |
291 | ||
3057ac3c | 292 | SETFEATURES_WC_ON = 0x02, /* Enable write cache */ |
293 | SETFEATURES_WC_OFF = 0x82, /* Disable write cache */ | |
294 | ||
476d9894 BZ |
295 | /* Enable/Disable Automatic Acoustic Management */ |
296 | SETFEATURES_AAM_ON = 0x42, | |
297 | SETFEATURES_AAM_OFF = 0xC2, | |
298 | ||
169439c2 ML |
299 | SETFEATURES_SPINUP = 0x07, /* Spin-up drive */ |
300 | ||
9f45cbd3 KCA |
301 | SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */ |
302 | SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */ | |
303 | ||
304 | /* SETFEATURE Sector counts for SATA features */ | |
305 | SATA_AN = 0x05, /* Asynchronous Notification */ | |
ca77329f | 306 | SATA_DIPM = 0x03, /* Device Initiated Power Management */ |
9f45cbd3 | 307 | |
ce2e0abb TH |
308 | /* feature values for SET_MAX */ |
309 | ATA_SET_MAX_ADDR = 0x00, | |
310 | ATA_SET_MAX_PASSWD = 0x01, | |
311 | ATA_SET_MAX_LOCK = 0x02, | |
312 | ATA_SET_MAX_UNLOCK = 0x03, | |
313 | ATA_SET_MAX_FREEZE_LOCK = 0x04, | |
314 | ||
315 | /* feature values for DEVICE CONFIGURATION OVERLAY */ | |
316 | ATA_DCO_RESTORE = 0xC0, | |
317 | ATA_DCO_FREEZE_LOCK = 0xC1, | |
318 | ATA_DCO_IDENTIFY = 0xC2, | |
319 | ATA_DCO_SET = 0xC3, | |
320 | ||
476d9894 BZ |
321 | /* feature values for SMART */ |
322 | ATA_SMART_ENABLE = 0xD8, | |
323 | ATA_SMART_READ_VALUES = 0xD0, | |
324 | ATA_SMART_READ_THRESHOLDS = 0xD1, | |
325 | ||
326 | /* password used in LBA Mid / LBA High for executing SMART commands */ | |
327 | ATA_SMART_LBAM_PASS = 0x4F, | |
328 | ATA_SMART_LBAH_PASS = 0xC2, | |
329 | ||
1da177e4 LT |
330 | /* ATAPI stuff */ |
331 | ATAPI_PKT_DMA = (1 << 0), | |
332 | ATAPI_DMADIR = (1 << 2), /* ATAPI data dir: | |
333 | 0=to device, 1=to host */ | |
334 | ATAPI_CDB_LEN = 16, | |
335 | ||
814600ee TH |
336 | /* PMP stuff */ |
337 | SATA_PMP_MAX_PORTS = 15, | |
338 | SATA_PMP_CTRL_PORT = 15, | |
339 | ||
340 | SATA_PMP_GSCR_DWORDS = 128, | |
341 | SATA_PMP_GSCR_PROD_ID = 0, | |
342 | SATA_PMP_GSCR_REV = 1, | |
343 | SATA_PMP_GSCR_PORT_INFO = 2, | |
344 | SATA_PMP_GSCR_ERROR = 32, | |
345 | SATA_PMP_GSCR_ERROR_EN = 33, | |
346 | SATA_PMP_GSCR_FEAT = 64, | |
347 | SATA_PMP_GSCR_FEAT_EN = 96, | |
348 | ||
349 | SATA_PMP_PSCR_STATUS = 0, | |
350 | SATA_PMP_PSCR_ERROR = 1, | |
351 | SATA_PMP_PSCR_CONTROL = 2, | |
352 | ||
353 | SATA_PMP_FEAT_BIST = (1 << 0), | |
354 | SATA_PMP_FEAT_PMREQ = (1 << 1), | |
355 | SATA_PMP_FEAT_DYNSSC = (1 << 2), | |
356 | SATA_PMP_FEAT_NOTIFY = (1 << 3), | |
357 | ||
1da177e4 LT |
358 | /* cable types */ |
359 | ATA_CBL_NONE = 0, | |
360 | ATA_CBL_PATA40 = 1, | |
361 | ATA_CBL_PATA80 = 2, | |
c88f90c3 TH |
362 | ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */ |
363 | ATA_CBL_PATA_UNK = 4, /* don't know, maybe 80c? */ | |
364 | ATA_CBL_PATA_IGN = 5, /* don't know, ignore cable handling */ | |
365 | ATA_CBL_SATA = 6, | |
1da177e4 LT |
366 | |
367 | /* SATA Status and Control Registers */ | |
368 | SCR_STATUS = 0, | |
369 | SCR_ERROR = 1, | |
370 | SCR_CONTROL = 2, | |
371 | SCR_ACTIVE = 3, | |
372 | SCR_NOTIFICATION = 4, | |
373 | ||
9be1e979 TH |
374 | /* SError bits */ |
375 | SERR_DATA_RECOVERED = (1 << 0), /* recovered data error */ | |
376 | SERR_COMM_RECOVERED = (1 << 1), /* recovered comm failure */ | |
377 | SERR_DATA = (1 << 8), /* unrecovered data error */ | |
378 | SERR_PERSISTENT = (1 << 9), /* persistent data/comm error */ | |
379 | SERR_PROTOCOL = (1 << 10), /* protocol violation */ | |
380 | SERR_INTERNAL = (1 << 11), /* host internal error */ | |
381 | SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */ | |
1333e194 RH |
382 | SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */ |
383 | SERR_COMM_WAKE = (1 << 18), /* Comm wake */ | |
384 | SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */ | |
385 | SERR_DISPARITY = (1 << 20), /* Disparity */ | |
386 | SERR_CRC = (1 << 21), /* CRC error */ | |
387 | SERR_HANDSHAKE = (1 << 22), /* Handshake error */ | |
388 | SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */ | |
389 | SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */ | |
390 | SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */ | |
9be1e979 TH |
391 | SERR_DEV_XCHG = (1 << 26), /* device exchanged */ |
392 | ||
1da177e4 LT |
393 | /* struct ata_taskfile flags */ |
394 | ATA_TFLAG_LBA48 = (1 << 0), /* enable 48-bit LBA and "HOB" */ | |
395 | ATA_TFLAG_ISADDR = (1 << 1), /* enable r/w to nsect/lba regs */ | |
396 | ATA_TFLAG_DEVICE = (1 << 2), /* enable r/w to device reg */ | |
397 | ATA_TFLAG_WRITE = (1 << 3), /* data dir: host->dev==1 (write) */ | |
8bf62ece | 398 | ATA_TFLAG_LBA = (1 << 4), /* enable LBA */ |
9a3dccc4 | 399 | ATA_TFLAG_FUA = (1 << 5), /* enable FUA */ |
ea9b395f | 400 | ATA_TFLAG_POLLING = (1 << 6), /* set nIEN to 1 and use polling */ |
405e66b3 TH |
401 | |
402 | /* protocol flags */ | |
403 | ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */ | |
404 | ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */ | |
405 | ATA_PROT_FLAG_DATA = ATA_PROT_FLAG_PIO | ATA_PROT_FLAG_DMA, | |
406 | ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */ | |
407 | ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */ | |
1da177e4 LT |
408 | }; |
409 | ||
410 | enum ata_tf_protocols { | |
411 | /* ATA taskfile protocols */ | |
412 | ATA_PROT_UNKNOWN, /* unknown/invalid */ | |
413 | ATA_PROT_NODATA, /* no data */ | |
1dce589c | 414 | ATA_PROT_PIO, /* PIO data xfer */ |
1da177e4 | 415 | ATA_PROT_DMA, /* DMA */ |
88e49034 | 416 | ATA_PROT_NCQ, /* NCQ */ |
0dc36888 TH |
417 | ATAPI_PROT_NODATA, /* packet command, no data */ |
418 | ATAPI_PROT_PIO, /* packet command, PIO data xfer*/ | |
419 | ATAPI_PROT_DMA, /* packet command with special DMA sauce */ | |
1da177e4 LT |
420 | }; |
421 | ||
422 | enum ata_ioctls { | |
423 | ATA_IOC_GET_IO32 = 0x309, | |
424 | ATA_IOC_SET_IO32 = 0x324, | |
425 | }; | |
426 | ||
427 | /* core structures */ | |
428 | ||
429 | struct ata_prd { | |
4ca4e439 AV |
430 | __le32 addr; |
431 | __le32 flags_len; | |
1da177e4 LT |
432 | }; |
433 | ||
434 | struct ata_taskfile { | |
435 | unsigned long flags; /* ATA_TFLAG_xxx */ | |
436 | u8 protocol; /* ATA_PROT_xxx */ | |
437 | ||
438 | u8 ctl; /* control reg */ | |
439 | ||
440 | u8 hob_feature; /* additional data */ | |
441 | u8 hob_nsect; /* to support LBA48 */ | |
442 | u8 hob_lbal; | |
443 | u8 hob_lbam; | |
444 | u8 hob_lbah; | |
445 | ||
446 | u8 feature; | |
447 | u8 nsect; | |
448 | u8 lbal; | |
449 | u8 lbam; | |
450 | u8 lbah; | |
451 | ||
452 | u8 device; | |
453 | ||
454 | u8 command; /* IO operation */ | |
455 | }; | |
456 | ||
405e66b3 TH |
457 | /* |
458 | * protocol tests | |
459 | */ | |
460 | static inline unsigned int ata_prot_flags(u8 prot) | |
461 | { | |
462 | switch (prot) { | |
463 | case ATA_PROT_NODATA: | |
464 | return 0; | |
465 | case ATA_PROT_PIO: | |
466 | return ATA_PROT_FLAG_PIO; | |
467 | case ATA_PROT_DMA: | |
468 | return ATA_PROT_FLAG_DMA; | |
469 | case ATA_PROT_NCQ: | |
470 | return ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ; | |
0dc36888 | 471 | case ATAPI_PROT_NODATA: |
405e66b3 | 472 | return ATA_PROT_FLAG_ATAPI; |
0dc36888 | 473 | case ATAPI_PROT_PIO: |
405e66b3 | 474 | return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO; |
0dc36888 | 475 | case ATAPI_PROT_DMA: |
405e66b3 TH |
476 | return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA; |
477 | } | |
478 | return 0; | |
479 | } | |
480 | ||
481 | static inline int ata_is_atapi(u8 prot) | |
482 | { | |
483 | return ata_prot_flags(prot) & ATA_PROT_FLAG_ATAPI; | |
484 | } | |
485 | ||
486 | static inline int ata_is_nodata(u8 prot) | |
487 | { | |
488 | return !(ata_prot_flags(prot) & ATA_PROT_FLAG_DATA); | |
489 | } | |
490 | ||
491 | static inline int ata_is_pio(u8 prot) | |
492 | { | |
493 | return ata_prot_flags(prot) & ATA_PROT_FLAG_PIO; | |
494 | } | |
495 | ||
496 | static inline int ata_is_dma(u8 prot) | |
497 | { | |
498 | return ata_prot_flags(prot) & ATA_PROT_FLAG_DMA; | |
499 | } | |
500 | ||
501 | static inline int ata_is_ncq(u8 prot) | |
502 | { | |
503 | return ata_prot_flags(prot) & ATA_PROT_FLAG_NCQ; | |
504 | } | |
505 | ||
506 | static inline int ata_is_data(u8 prot) | |
507 | { | |
508 | return ata_prot_flags(prot) & ATA_PROT_FLAG_DATA; | |
509 | } | |
510 | ||
511 | /* | |
512 | * id tests | |
513 | */ | |
37014c64 BZ |
514 | #define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0) |
515 | #define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9)) | |
516 | #define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (1 << 8)) | |
88e49034 | 517 | #define ata_id_has_ncq(id) ((id)[76] & (1 << 8)) |
37014c64 BZ |
518 | #define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1) |
519 | #define ata_id_removeable(id) ((id)[ATA_ID_CONFIG] & (1 << 7)) | |
854c73a2 | 520 | #define ata_id_has_atapi_AN(id) \ |
9f45cbd3 KCA |
521 | ( (((id)[76] != 0x0000) && ((id)[76] != 0xffff)) && \ |
522 | ((id)[78] & (1 << 5)) ) | |
37014c64 BZ |
523 | #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10)) |
524 | #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11)) | |
1da177e4 LT |
525 | #define ata_id_u32(id,n) \ |
526 | (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)])) | |
527 | #define ata_id_u64(id,n) \ | |
528 | ( ((u64) (id)[(n) + 3] << 48) | \ | |
529 | ((u64) (id)[(n) + 2] << 32) | \ | |
530 | ((u64) (id)[(n) + 1] << 16) | \ | |
531 | ((u64) (id)[(n) + 0]) ) | |
532 | ||
37014c64 | 533 | #define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20) |
312f7da2 | 534 | |
ca77329f KCA |
535 | static inline bool ata_id_has_hipm(const u16 *id) |
536 | { | |
537 | u16 val = id[76]; | |
538 | ||
539 | if (val == 0 || val == 0xffff) | |
540 | return false; | |
541 | ||
542 | return val & (1 << 9); | |
543 | } | |
544 | ||
545 | static inline bool ata_id_has_dipm(const u16 *id) | |
546 | { | |
547 | u16 val = id[78]; | |
548 | ||
549 | if (val == 0 || val == 0xffff) | |
550 | return false; | |
551 | ||
552 | return val & (1 << 3); | |
553 | } | |
554 | ||
ae8d4ee7 | 555 | |
c7293870 AC |
556 | static inline int ata_id_has_fua(const u16 *id) |
557 | { | |
37014c64 | 558 | if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000) |
c7293870 | 559 | return 0; |
37014c64 | 560 | return id[ATA_ID_CFSSE] & (1 << 6); |
c7293870 AC |
561 | } |
562 | ||
563 | static inline int ata_id_has_flush(const u16 *id) | |
564 | { | |
37014c64 | 565 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 566 | return 0; |
37014c64 | 567 | return id[ATA_ID_COMMAND_SET_2] & (1 << 12); |
c7293870 AC |
568 | } |
569 | ||
4b58f17d BZ |
570 | static inline int ata_id_flush_enabled(const u16 *id) |
571 | { | |
572 | if (ata_id_has_flush(id) == 0) | |
573 | return 0; | |
574 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) | |
575 | return 0; | |
576 | return id[ATA_ID_CFS_ENABLE_2] & (1 << 12); | |
577 | } | |
578 | ||
c7293870 AC |
579 | static inline int ata_id_has_flush_ext(const u16 *id) |
580 | { | |
37014c64 | 581 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 582 | return 0; |
37014c64 | 583 | return id[ATA_ID_COMMAND_SET_2] & (1 << 13); |
c7293870 AC |
584 | } |
585 | ||
ff2779b5 BZ |
586 | static inline int ata_id_flush_ext_enabled(const u16 *id) |
587 | { | |
588 | if (ata_id_has_flush_ext(id) == 0) | |
589 | return 0; | |
590 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) | |
591 | return 0; | |
592 | /* | |
593 | * some Maxtor disks have bit 13 defined incorrectly | |
594 | * so check bit 10 too | |
595 | */ | |
596 | return (id[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400; | |
597 | } | |
598 | ||
c7293870 AC |
599 | static inline int ata_id_has_lba48(const u16 *id) |
600 | { | |
37014c64 | 601 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 602 | return 0; |
37014c64 | 603 | if (!ata_id_u64(id, ATA_ID_LBA_CAPACITY_2)) |
17bd9a2f | 604 | return 0; |
37014c64 | 605 | return id[ATA_ID_COMMAND_SET_2] & (1 << 10); |
c7293870 AC |
606 | } |
607 | ||
942dcd85 BZ |
608 | static inline int ata_id_lba48_enabled(const u16 *id) |
609 | { | |
610 | if (ata_id_has_lba48(id) == 0) | |
611 | return 0; | |
612 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) | |
613 | return 0; | |
614 | return id[ATA_ID_CFS_ENABLE_2] & (1 << 10); | |
615 | } | |
616 | ||
c7293870 AC |
617 | static inline int ata_id_hpa_enabled(const u16 *id) |
618 | { | |
619 | /* Yes children, word 83 valid bits cover word 82 data */ | |
37014c64 | 620 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 AC |
621 | return 0; |
622 | /* And 87 covers 85-87 */ | |
37014c64 | 623 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
c7293870 AC |
624 | return 0; |
625 | /* Check command sets enabled as well as supported */ | |
37014c64 | 626 | if ((id[ATA_ID_CFS_ENABLE_1] & (1 << 10)) == 0) |
c7293870 | 627 | return 0; |
37014c64 | 628 | return id[ATA_ID_COMMAND_SET_1] & (1 << 10); |
c7293870 AC |
629 | } |
630 | ||
631 | static inline int ata_id_has_wcache(const u16 *id) | |
632 | { | |
633 | /* Yes children, word 83 valid bits cover word 82 data */ | |
37014c64 | 634 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 635 | return 0; |
37014c64 | 636 | return id[ATA_ID_COMMAND_SET_1] & (1 << 5); |
c7293870 AC |
637 | } |
638 | ||
639 | static inline int ata_id_has_pm(const u16 *id) | |
640 | { | |
37014c64 | 641 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) |
c7293870 | 642 | return 0; |
37014c64 | 643 | return id[ATA_ID_COMMAND_SET_1] & (1 << 3); |
c7293870 AC |
644 | } |
645 | ||
646 | static inline int ata_id_rahead_enabled(const u16 *id) | |
647 | { | |
37014c64 | 648 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
c7293870 | 649 | return 0; |
37014c64 | 650 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 6); |
c7293870 AC |
651 | } |
652 | ||
653 | static inline int ata_id_wcache_enabled(const u16 *id) | |
654 | { | |
37014c64 | 655 | if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) |
c7293870 | 656 | return 0; |
37014c64 | 657 | return id[ATA_ID_CFS_ENABLE_1] & (1 << 5); |
c7293870 AC |
658 | } |
659 | ||
660 | /** | |
661 | * ata_id_major_version - get ATA level of drive | |
662 | * @id: Identify data | |
663 | * | |
664 | * Caveats: | |
665 | * ATA-1 considers identify optional | |
666 | * ATA-2 introduces mandatory identify | |
667 | * ATA-3 introduces word 80 and accurate reporting | |
668 | * | |
669 | * The practical impact of this is that ata_id_major_version cannot | |
2dcb407e | 670 | * reliably report on drives below ATA3. |
c7293870 AC |
671 | */ |
672 | ||
3d2ca910 TH |
673 | static inline unsigned int ata_id_major_version(const u16 *id) |
674 | { | |
675 | unsigned int mver; | |
676 | ||
b352e57d AC |
677 | if (id[ATA_ID_MAJOR_VER] == 0xFFFF) |
678 | return 0; | |
679 | ||
3d2ca910 TH |
680 | for (mver = 14; mver >= 1; mver--) |
681 | if (id[ATA_ID_MAJOR_VER] & (1 << mver)) | |
682 | break; | |
683 | return mver; | |
684 | } | |
685 | ||
32d90911 TH |
686 | static inline int ata_id_is_sata(const u16 *id) |
687 | { | |
367d7e78 BZ |
688 | /* |
689 | * See if word 93 is 0 AND drive is at least ATA-5 compatible | |
690 | * verifying that word 80 by casting it to a signed type -- | |
691 | * this trick allows us to filter out the reserved values of | |
692 | * 0x0000 and 0xffff along with the earlier ATA revisions... | |
693 | */ | |
694 | if (id[ATA_ID_HW_CONFIG] == 0 && (short)id[ATA_ID_MAJOR_VER] >= 0x0020) | |
695 | return 1; | |
696 | return 0; | |
32d90911 TH |
697 | } |
698 | ||
ae8d4ee7 AC |
699 | static inline int ata_id_has_tpm(const u16 *id) |
700 | { | |
701 | /* The TPM bits are only valid on ATA8 */ | |
702 | if (ata_id_major_version(id) < 8) | |
703 | return 0; | |
704 | if ((id[48] & 0xC000) != 0x4000) | |
705 | return 0; | |
706 | return id[48] & (1 << 0); | |
707 | } | |
708 | ||
709 | static inline int ata_id_has_dword_io(const u16 *id) | |
710 | { | |
711 | /* ATA 8 reuses this flag for "trusted" computing */ | |
712 | if (ata_id_major_version(id) > 7) | |
713 | return 0; | |
37014c64 | 714 | if (id[ATA_ID_DWORD_IO] & (1 << 0)) |
ae8d4ee7 AC |
715 | return 1; |
716 | return 0; | |
717 | } | |
718 | ||
ea6ce53c EO |
719 | static inline int ata_id_has_unload(const u16 *id) |
720 | { | |
721 | if (ata_id_major_version(id) >= 7 && | |
722 | (id[ATA_ID_CFSSE] & 0xC000) == 0x4000 && | |
723 | id[ATA_ID_CFSSE] & (1 << 13)) | |
724 | return 1; | |
725 | return 0; | |
726 | } | |
727 | ||
057ace5e | 728 | static inline int ata_id_current_chs_valid(const u16 *id) |
8bf62ece | 729 | { |
9bec2e38 JG |
730 | /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command |
731 | has not been issued to the device then the values of | |
37014c64 BZ |
732 | id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */ |
733 | return (id[ATA_ID_FIELD_VALID] & 1) && /* Current translation valid */ | |
734 | id[ATA_ID_CUR_CYLS] && /* cylinders in current translation */ | |
735 | id[ATA_ID_CUR_HEADS] && /* heads in current translation */ | |
736 | id[ATA_ID_CUR_HEADS] <= 16 && | |
737 | id[ATA_ID_CUR_SECTORS]; /* sectors in current translation */ | |
8bf62ece AL |
738 | } |
739 | ||
b352e57d AC |
740 | static inline int ata_id_is_cfa(const u16 *id) |
741 | { | |
2999b58b | 742 | if (id[ATA_ID_CONFIG] == 0x848A) /* Traditional CF */ |
b352e57d | 743 | return 1; |
2999b58b SS |
744 | /* |
745 | * CF specs don't require specific value in the word 0 anymore and yet | |
746 | * they forbid to report the ATA version in the word 80 and require the | |
747 | * CFA feature set support to be indicated in the word 83 in this case. | |
748 | * Unfortunately, some cards only follow either of this requirements, | |
749 | * and while those that don't indicate CFA feature support need some | |
750 | * sort of quirk list, it seems impractical for the ones that do... | |
751 | */ | |
752 | if ((id[ATA_ID_COMMAND_SET_2] & 0xC004) == 0x4004) | |
b352e57d AC |
753 | return 1; |
754 | return 0; | |
755 | } | |
756 | ||
8bff7c6b JA |
757 | static inline int ata_id_is_ssd(const u16 *id) |
758 | { | |
759 | return id[ATA_ID_ROT_SPEED] == 0x01; | |
760 | } | |
761 | ||
fc085150 AC |
762 | static inline int ata_drive_40wire(const u16 *dev_id) |
763 | { | |
32d90911 | 764 | if (ata_id_is_sata(dev_id)) |
fc085150 | 765 | return 0; /* SATA */ |
37014c64 | 766 | if ((dev_id[ATA_ID_HW_CONFIG] & 0xE000) == 0x6000) |
fc085150 AC |
767 | return 0; /* 80 wire */ |
768 | return 1; | |
769 | } | |
770 | ||
6bbfd53d AC |
771 | static inline int ata_drive_40wire_relaxed(const u16 *dev_id) |
772 | { | |
37014c64 | 773 | if ((dev_id[ATA_ID_HW_CONFIG] & 0x2000) == 0x2000) |
6bbfd53d AC |
774 | return 0; /* 80 wire */ |
775 | return 1; | |
776 | } | |
777 | ||
057ace5e | 778 | static inline int atapi_cdb_len(const u16 *dev_id) |
1da177e4 | 779 | { |
37014c64 | 780 | u16 tmp = dev_id[ATA_ID_CONFIG] & 0x3; |
1da177e4 LT |
781 | switch (tmp) { |
782 | case 0: return 12; | |
783 | case 1: return 16; | |
784 | default: return -1; | |
785 | } | |
786 | } | |
787 | ||
f8d8e579 TB |
788 | static inline int atapi_command_packet_set(const u16 *dev_id) |
789 | { | |
37014c64 | 790 | return (dev_id[ATA_ID_CONFIG] >> 8) & 0x1f; |
f8d8e579 TB |
791 | } |
792 | ||
91163006 TH |
793 | static inline int atapi_id_dmadir(const u16 *dev_id) |
794 | { | |
795 | return ata_id_major_version(dev_id) >= 7 && (dev_id[62] & 0x8000); | |
796 | } | |
797 | ||
a02227c9 BZ |
798 | /* |
799 | * ata_id_is_lba_capacity_ok() performs a sanity check on | |
800 | * the claimed LBA capacity value for the device. | |
801 | * | |
802 | * Returns 1 if LBA capacity looks sensible, 0 otherwise. | |
803 | * | |
804 | * It is called only once for each device. | |
805 | */ | |
806 | static inline int ata_id_is_lba_capacity_ok(u16 *id) | |
807 | { | |
808 | unsigned long lba_sects, chs_sects, head, tail; | |
809 | ||
810 | /* No non-LBA info .. so valid! */ | |
811 | if (id[ATA_ID_CYLS] == 0) | |
812 | return 1; | |
813 | ||
814 | lba_sects = ata_id_u32(id, ATA_ID_LBA_CAPACITY); | |
815 | ||
816 | /* | |
817 | * The ATA spec tells large drives to return | |
818 | * C/H/S = 16383/16/63 independent of their size. | |
819 | * Some drives can be jumpered to use 15 heads instead of 16. | |
820 | * Some drives can be jumpered to use 4092 cyls instead of 16383. | |
821 | */ | |
822 | if ((id[ATA_ID_CYLS] == 16383 || | |
823 | (id[ATA_ID_CYLS] == 4092 && id[ATA_ID_CUR_CYLS] == 16383)) && | |
824 | id[ATA_ID_SECTORS] == 63 && | |
825 | (id[ATA_ID_HEADS] == 15 || id[ATA_ID_HEADS] == 16) && | |
826 | (lba_sects >= 16383 * 63 * id[ATA_ID_HEADS])) | |
827 | return 1; | |
828 | ||
829 | chs_sects = id[ATA_ID_CYLS] * id[ATA_ID_HEADS] * id[ATA_ID_SECTORS]; | |
830 | ||
831 | /* perform a rough sanity check on lba_sects: within 10% is OK */ | |
832 | if (lba_sects - chs_sects < chs_sects/10) | |
833 | return 1; | |
834 | ||
835 | /* some drives have the word order reversed */ | |
836 | head = (lba_sects >> 16) & 0xffff; | |
837 | tail = lba_sects & 0xffff; | |
838 | lba_sects = head | (tail << 16); | |
839 | ||
840 | if (lba_sects - chs_sects < chs_sects/10) { | |
841 | *(__le32 *)&id[ATA_ID_LBA_CAPACITY] = __cpu_to_le32(lba_sects); | |
842 | return 1; /* LBA capacity is (now) good */ | |
843 | } | |
844 | ||
845 | return 0; /* LBA capacity value may be bad */ | |
846 | } | |
847 | ||
93734a23 BZ |
848 | static inline void ata_id_to_hd_driveid(u16 *id) |
849 | { | |
850 | #ifdef __BIG_ENDIAN | |
851 | /* accessed in struct hd_driveid as 8-bit values */ | |
852 | id[ATA_ID_MAX_MULTSECT] = __cpu_to_le16(id[ATA_ID_MAX_MULTSECT]); | |
853 | id[ATA_ID_CAPABILITY] = __cpu_to_le16(id[ATA_ID_CAPABILITY]); | |
854 | id[ATA_ID_OLD_PIO_MODES] = __cpu_to_le16(id[ATA_ID_OLD_PIO_MODES]); | |
855 | id[ATA_ID_OLD_DMA_MODES] = __cpu_to_le16(id[ATA_ID_OLD_DMA_MODES]); | |
856 | id[ATA_ID_MULTSECT] = __cpu_to_le16(id[ATA_ID_MULTSECT]); | |
857 | ||
858 | /* as 32-bit values */ | |
859 | *(u32 *)&id[ATA_ID_LBA_CAPACITY] = ata_id_u32(id, ATA_ID_LBA_CAPACITY); | |
860 | *(u32 *)&id[ATA_ID_SPG] = ata_id_u32(id, ATA_ID_SPG); | |
861 | ||
862 | /* as 64-bit value */ | |
863 | *(u64 *)&id[ATA_ID_LBA_CAPACITY_2] = | |
864 | ata_id_u64(id, ATA_ID_LBA_CAPACITY_2); | |
865 | #endif | |
866 | } | |
867 | ||
07f6f7d0 AL |
868 | static inline int is_multi_taskfile(struct ata_taskfile *tf) |
869 | { | |
870 | return (tf->command == ATA_CMD_READ_MULTI) || | |
871 | (tf->command == ATA_CMD_WRITE_MULTI) || | |
872 | (tf->command == ATA_CMD_READ_MULTI_EXT) || | |
c2956a3b AL |
873 | (tf->command == ATA_CMD_WRITE_MULTI_EXT) || |
874 | (tf->command == ATA_CMD_WRITE_MULTI_FUA_EXT); | |
07f6f7d0 AL |
875 | } |
876 | ||
1da177e4 LT |
877 | static inline int ata_ok(u8 status) |
878 | { | |
879 | return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR)) | |
880 | == ATA_DRDY); | |
881 | } | |
882 | ||
c6a33e24 AL |
883 | static inline int lba_28_ok(u64 block, u32 n_block) |
884 | { | |
885 | /* check the ending block number */ | |
97b697a1 | 886 | return ((block + n_block) < ((u64)1 << 28)) && (n_block <= 256); |
c6a33e24 AL |
887 | } |
888 | ||
889 | static inline int lba_48_ok(u64 block, u32 n_block) | |
890 | { | |
891 | /* check the ending block number */ | |
892 | return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= 65536); | |
893 | } | |
894 | ||
814600ee TH |
895 | #define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff) |
896 | #define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16) | |
897 | #define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff) | |
898 | #define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf) | |
899 | ||
1da177e4 | 900 | #endif /* __LINUX_ATA_H__ */ |