1 2 /* 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/driver-api/libata.rst 24 * 25 * Hardware documentation available from http://www.t13.org/ 26 * 27 */ 28 29 #ifndef __LINUX_ATA_H__ 30 #define __LINUX_ATA_H__ 31 32 #include <linux/kernel.h> 33 #include <linux/string.h> 34 #include <linux/types.h> 35 #include <asm/byteorder.h> 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, 46 ATA_MAX_SECTORS_128 = 128, 47 ATA_MAX_SECTORS = 256, 48 ATA_MAX_SECTORS_1024 = 1024, 49 ATA_MAX_SECTORS_LBA48 = 65535,/* avoid count to be 0000h */ 50 ATA_MAX_SECTORS_TAPE = 65535, 51 ATA_MAX_TRIM_RNUM = 64, /* 512-byte payload / (6-byte LBA + 2-byte range per entry) */ 52 53 ATA_ID_WORDS = 256, 54 ATA_ID_CONFIG = 0, 55 ATA_ID_CYLS = 1, 56 ATA_ID_HEADS = 3, 57 ATA_ID_SECTORS = 6, 58 ATA_ID_SERNO = 10, 59 ATA_ID_BUF_SIZE = 21, 60 ATA_ID_FW_REV = 23, 61 ATA_ID_PROD = 27, 62 ATA_ID_MAX_MULTSECT = 47, 63 ATA_ID_DWORD_IO = 48, /* before ATA-8 */ 64 ATA_ID_TRUSTED = 48, /* ATA-8 and later */ 65 ATA_ID_CAPABILITY = 49, 66 ATA_ID_OLD_PIO_MODES = 51, 67 ATA_ID_OLD_DMA_MODES = 52, 68 ATA_ID_FIELD_VALID = 53, 69 ATA_ID_CUR_CYLS = 54, 70 ATA_ID_CUR_HEADS = 55, 71 ATA_ID_CUR_SECTORS = 56, 72 ATA_ID_MULTSECT = 59, 73 ATA_ID_LBA_CAPACITY = 60, 74 ATA_ID_SWDMA_MODES = 62, 75 ATA_ID_MWDMA_MODES = 63, 76 ATA_ID_PIO_MODES = 64, 77 ATA_ID_EIDE_DMA_MIN = 65, 78 ATA_ID_EIDE_DMA_TIME = 66, 79 ATA_ID_EIDE_PIO = 67, 80 ATA_ID_EIDE_PIO_IORDY = 68, 81 ATA_ID_ADDITIONAL_SUPP = 69, 82 ATA_ID_QUEUE_DEPTH = 75, 83 ATA_ID_SATA_CAPABILITY = 76, 84 ATA_ID_SATA_CAPABILITY_2 = 77, 85 ATA_ID_FEATURE_SUPP = 78, 86 ATA_ID_MAJOR_VER = 80, 87 ATA_ID_COMMAND_SET_1 = 82, 88 ATA_ID_COMMAND_SET_2 = 83, 89 ATA_ID_CFSSE = 84, 90 ATA_ID_CFS_ENABLE_1 = 85, 91 ATA_ID_CFS_ENABLE_2 = 86, 92 ATA_ID_CSF_DEFAULT = 87, 93 ATA_ID_UDMA_MODES = 88, 94 ATA_ID_HW_CONFIG = 93, 95 ATA_ID_SPG = 98, 96 ATA_ID_LBA_CAPACITY_2 = 100, 97 ATA_ID_SECTOR_SIZE = 106, 98 ATA_ID_WWN = 108, 99 ATA_ID_LOGICAL_SECTOR_SIZE = 117, /* and 118 */ 100 ATA_ID_COMMAND_SET_3 = 119, 101 ATA_ID_COMMAND_SET_4 = 120, 102 ATA_ID_LAST_LUN = 126, 103 ATA_ID_DLF = 128, 104 ATA_ID_CSFO = 129, 105 ATA_ID_CFA_POWER = 160, 106 ATA_ID_CFA_KEY_MGMT = 162, 107 ATA_ID_CFA_MODES = 163, 108 ATA_ID_DATA_SET_MGMT = 169, 109 ATA_ID_SCT_CMD_XPORT = 206, 110 ATA_ID_ROT_SPEED = 217, 111 ATA_ID_PIO4 = (1 << 1), 112 113 ATA_ID_SERNO_LEN = 20, 114 ATA_ID_FW_REV_LEN = 8, 115 ATA_ID_PROD_LEN = 40, 116 ATA_ID_WWN_LEN = 8, 117 118 ATA_PCI_CTL_OFS = 2, 119 120 ATA_PIO0 = (1 << 0), 121 ATA_PIO1 = ATA_PIO0 | (1 << 1), 122 ATA_PIO2 = ATA_PIO1 | (1 << 2), 123 ATA_PIO3 = ATA_PIO2 | (1 << 3), 124 ATA_PIO4 = ATA_PIO3 | (1 << 4), 125 ATA_PIO5 = ATA_PIO4 | (1 << 5), 126 ATA_PIO6 = ATA_PIO5 | (1 << 6), 127 128 ATA_PIO4_ONLY = (1 << 4), 129 130 ATA_SWDMA0 = (1 << 0), 131 ATA_SWDMA1 = ATA_SWDMA0 | (1 << 1), 132 ATA_SWDMA2 = ATA_SWDMA1 | (1 << 2), 133 134 ATA_SWDMA2_ONLY = (1 << 2), 135 136 ATA_MWDMA0 = (1 << 0), 137 ATA_MWDMA1 = ATA_MWDMA0 | (1 << 1), 138 ATA_MWDMA2 = ATA_MWDMA1 | (1 << 2), 139 ATA_MWDMA3 = ATA_MWDMA2 | (1 << 3), 140 ATA_MWDMA4 = ATA_MWDMA3 | (1 << 4), 141 142 ATA_MWDMA12_ONLY = (1 << 1) | (1 << 2), 143 ATA_MWDMA2_ONLY = (1 << 2), 144 145 ATA_UDMA0 = (1 << 0), 146 ATA_UDMA1 = ATA_UDMA0 | (1 << 1), 147 ATA_UDMA2 = ATA_UDMA1 | (1 << 2), 148 ATA_UDMA3 = ATA_UDMA2 | (1 << 3), 149 ATA_UDMA4 = ATA_UDMA3 | (1 << 4), 150 ATA_UDMA5 = ATA_UDMA4 | (1 << 5), 151 ATA_UDMA6 = ATA_UDMA5 | (1 << 6), 152 ATA_UDMA7 = ATA_UDMA6 | (1 << 7), 153 /* ATA_UDMA7 is just for completeness... doesn't exist (yet?). */ 154 155 ATA_UDMA24_ONLY = (1 << 2) | (1 << 4), 156 157 ATA_UDMA_MASK_40C = ATA_UDMA2, /* udma0-2 */ 158 159 /* DMA-related */ 160 ATA_PRD_SZ = 8, 161 ATA_PRD_TBL_SZ = (ATA_MAX_PRD * ATA_PRD_SZ), 162 ATA_PRD_EOT = (1 << 31), /* end-of-table flag */ 163 164 ATA_DMA_TABLE_OFS = 4, 165 ATA_DMA_STATUS = 2, 166 ATA_DMA_CMD = 0, 167 ATA_DMA_WR = (1 << 3), 168 ATA_DMA_START = (1 << 0), 169 ATA_DMA_INTR = (1 << 2), 170 ATA_DMA_ERR = (1 << 1), 171 ATA_DMA_ACTIVE = (1 << 0), 172 173 /* bits in ATA command block registers */ 174 ATA_HOB = (1 << 7), /* LBA48 selector */ 175 ATA_NIEN = (1 << 1), /* disable-irq flag */ 176 ATA_LBA = (1 << 6), /* LBA28 selector */ 177 ATA_DEV1 = (1 << 4), /* Select Device 1 (slave) */ 178 ATA_DEVICE_OBS = (1 << 7) | (1 << 5), /* obs bits in dev reg */ 179 ATA_DEVCTL_OBS = (1 << 3), /* obsolete bit in devctl reg */ 180 ATA_BUSY = (1 << 7), /* BSY status bit */ 181 ATA_DRDY = (1 << 6), /* device ready */ 182 ATA_DF = (1 << 5), /* device fault */ 183 ATA_DSC = (1 << 4), /* drive seek complete */ 184 ATA_DRQ = (1 << 3), /* data request i/o */ 185 ATA_CORR = (1 << 2), /* corrected data error */ 186 ATA_SENSE = (1 << 1), /* sense code available */ 187 ATA_ERR = (1 << 0), /* have an error */ 188 ATA_SRST = (1 << 2), /* software reset */ 189 ATA_ICRC = (1 << 7), /* interface CRC error */ 190 ATA_BBK = ATA_ICRC, /* pre-EIDE: block marked bad */ 191 ATA_UNC = (1 << 6), /* uncorrectable media error */ 192 ATA_MC = (1 << 5), /* media changed */ 193 ATA_IDNF = (1 << 4), /* ID not found */ 194 ATA_MCR = (1 << 3), /* media change requested */ 195 ATA_ABORTED = (1 << 2), /* command aborted */ 196 ATA_TRK0NF = (1 << 1), /* track 0 not found */ 197 ATA_AMNF = (1 << 0), /* address mark not found */ 198 ATAPI_LFS = 0xF0, /* last failed sense */ 199 ATAPI_EOM = ATA_TRK0NF, /* end of media */ 200 ATAPI_ILI = ATA_AMNF, /* illegal length indication */ 201 ATAPI_IO = (1 << 1), 202 ATAPI_COD = (1 << 0), 203 204 /* ATA command block registers */ 205 ATA_REG_DATA = 0x00, 206 ATA_REG_ERR = 0x01, 207 ATA_REG_NSECT = 0x02, 208 ATA_REG_LBAL = 0x03, 209 ATA_REG_LBAM = 0x04, 210 ATA_REG_LBAH = 0x05, 211 ATA_REG_DEVICE = 0x06, 212 ATA_REG_STATUS = 0x07, 213 214 ATA_REG_FEATURE = ATA_REG_ERR, /* and their aliases */ 215 ATA_REG_CMD = ATA_REG_STATUS, 216 ATA_REG_BYTEL = ATA_REG_LBAM, 217 ATA_REG_BYTEH = ATA_REG_LBAH, 218 ATA_REG_DEVSEL = ATA_REG_DEVICE, 219 ATA_REG_IRQ = ATA_REG_NSECT, 220 221 /* ATA device commands */ 222 ATA_CMD_DEV_RESET = 0x08, /* ATAPI device reset */ 223 ATA_CMD_CHK_POWER = 0xE5, /* check power mode */ 224 ATA_CMD_STANDBY = 0xE2, /* place in standby power mode */ 225 ATA_CMD_IDLE = 0xE3, /* place in idle power mode */ 226 ATA_CMD_EDD = 0x90, /* execute device diagnostic */ 227 ATA_CMD_DOWNLOAD_MICRO = 0x92, 228 ATA_CMD_DOWNLOAD_MICRO_DMA = 0x93, 229 ATA_CMD_NOP = 0x00, 230 ATA_CMD_FLUSH = 0xE7, 231 ATA_CMD_FLUSH_EXT = 0xEA, 232 ATA_CMD_ID_ATA = 0xEC, 233 ATA_CMD_ID_ATAPI = 0xA1, 234 ATA_CMD_SERVICE = 0xA2, 235 ATA_CMD_READ = 0xC8, 236 ATA_CMD_READ_EXT = 0x25, 237 ATA_CMD_READ_QUEUED = 0x26, 238 ATA_CMD_READ_STREAM_EXT = 0x2B, 239 ATA_CMD_READ_STREAM_DMA_EXT = 0x2A, 240 ATA_CMD_WRITE = 0xCA, 241 ATA_CMD_WRITE_EXT = 0x35, 242 ATA_CMD_WRITE_QUEUED = 0x36, 243 ATA_CMD_WRITE_STREAM_EXT = 0x3B, 244 ATA_CMD_WRITE_STREAM_DMA_EXT = 0x3A, 245 ATA_CMD_WRITE_FUA_EXT = 0x3D, 246 ATA_CMD_WRITE_QUEUED_FUA_EXT = 0x3E, 247 ATA_CMD_FPDMA_READ = 0x60, 248 ATA_CMD_FPDMA_WRITE = 0x61, 249 ATA_CMD_NCQ_NON_DATA = 0x63, 250 ATA_CMD_FPDMA_SEND = 0x64, 251 ATA_CMD_FPDMA_RECV = 0x65, 252 ATA_CMD_PIO_READ = 0x20, 253 ATA_CMD_PIO_READ_EXT = 0x24, 254 ATA_CMD_PIO_WRITE = 0x30, 255 ATA_CMD_PIO_WRITE_EXT = 0x34, 256 ATA_CMD_READ_MULTI = 0xC4, 257 ATA_CMD_READ_MULTI_EXT = 0x29, 258 ATA_CMD_WRITE_MULTI = 0xC5, 259 ATA_CMD_WRITE_MULTI_EXT = 0x39, 260 ATA_CMD_WRITE_MULTI_FUA_EXT = 0xCE, 261 ATA_CMD_SET_FEATURES = 0xEF, 262 ATA_CMD_SET_MULTI = 0xC6, 263 ATA_CMD_PACKET = 0xA0, 264 ATA_CMD_VERIFY = 0x40, 265 ATA_CMD_VERIFY_EXT = 0x42, 266 ATA_CMD_WRITE_UNCORR_EXT = 0x45, 267 ATA_CMD_STANDBYNOW1 = 0xE0, 268 ATA_CMD_IDLEIMMEDIATE = 0xE1, 269 ATA_CMD_SLEEP = 0xE6, 270 ATA_CMD_INIT_DEV_PARAMS = 0x91, 271 ATA_CMD_READ_NATIVE_MAX = 0xF8, 272 ATA_CMD_READ_NATIVE_MAX_EXT = 0x27, 273 ATA_CMD_SET_MAX = 0xF9, 274 ATA_CMD_SET_MAX_EXT = 0x37, 275 ATA_CMD_READ_LOG_EXT = 0x2F, 276 ATA_CMD_WRITE_LOG_EXT = 0x3F, 277 ATA_CMD_READ_LOG_DMA_EXT = 0x47, 278 ATA_CMD_WRITE_LOG_DMA_EXT = 0x57, 279 ATA_CMD_TRUSTED_NONDATA = 0x5B, 280 ATA_CMD_TRUSTED_RCV = 0x5C, 281 ATA_CMD_TRUSTED_RCV_DMA = 0x5D, 282 ATA_CMD_TRUSTED_SND = 0x5E, 283 ATA_CMD_TRUSTED_SND_DMA = 0x5F, 284 ATA_CMD_PMP_READ = 0xE4, 285 ATA_CMD_PMP_READ_DMA = 0xE9, 286 ATA_CMD_PMP_WRITE = 0xE8, 287 ATA_CMD_PMP_WRITE_DMA = 0xEB, 288 ATA_CMD_CONF_OVERLAY = 0xB1, 289 ATA_CMD_SEC_SET_PASS = 0xF1, 290 ATA_CMD_SEC_UNLOCK = 0xF2, 291 ATA_CMD_SEC_ERASE_PREP = 0xF3, 292 ATA_CMD_SEC_ERASE_UNIT = 0xF4, 293 ATA_CMD_SEC_FREEZE_LOCK = 0xF5, 294 ATA_CMD_SEC_DISABLE_PASS = 0xF6, 295 ATA_CMD_CONFIG_STREAM = 0x51, 296 ATA_CMD_SMART = 0xB0, 297 ATA_CMD_MEDIA_LOCK = 0xDE, 298 ATA_CMD_MEDIA_UNLOCK = 0xDF, 299 ATA_CMD_DSM = 0x06, 300 ATA_CMD_CHK_MED_CRD_TYP = 0xD1, 301 ATA_CMD_CFA_REQ_EXT_ERR = 0x03, 302 ATA_CMD_CFA_WRITE_NE = 0x38, 303 ATA_CMD_CFA_TRANS_SECT = 0x87, 304 ATA_CMD_CFA_ERASE = 0xC0, 305 ATA_CMD_CFA_WRITE_MULT_NE = 0xCD, 306 ATA_CMD_REQ_SENSE_DATA = 0x0B, 307 ATA_CMD_SANITIZE_DEVICE = 0xB4, 308 ATA_CMD_ZAC_MGMT_IN = 0x4A, 309 ATA_CMD_ZAC_MGMT_OUT = 0x9F, 310 311 /* marked obsolete in the ATA/ATAPI-7 spec */ 312 ATA_CMD_RESTORE = 0x10, 313 314 /* Subcmds for ATA_CMD_FPDMA_RECV */ 315 ATA_SUBCMD_FPDMA_RECV_RD_LOG_DMA_EXT = 0x01, 316 ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN = 0x02, 317 318 /* Subcmds for ATA_CMD_FPDMA_SEND */ 319 ATA_SUBCMD_FPDMA_SEND_DSM = 0x00, 320 ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT = 0x02, 321 322 /* Subcmds for ATA_CMD_NCQ_NON_DATA */ 323 ATA_SUBCMD_NCQ_NON_DATA_ABORT_QUEUE = 0x00, 324 ATA_SUBCMD_NCQ_NON_DATA_SET_FEATURES = 0x05, 325 ATA_SUBCMD_NCQ_NON_DATA_ZERO_EXT = 0x06, 326 ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT = 0x07, 327 328 /* Subcmds for ATA_CMD_ZAC_MGMT_IN */ 329 ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES = 0x00, 330 331 /* Subcmds for ATA_CMD_ZAC_MGMT_OUT */ 332 ATA_SUBCMD_ZAC_MGMT_OUT_CLOSE_ZONE = 0x01, 333 ATA_SUBCMD_ZAC_MGMT_OUT_FINISH_ZONE = 0x02, 334 ATA_SUBCMD_ZAC_MGMT_OUT_OPEN_ZONE = 0x03, 335 ATA_SUBCMD_ZAC_MGMT_OUT_RESET_WRITE_POINTER = 0x04, 336 337 /* READ_LOG_EXT pages */ 338 ATA_LOG_DIRECTORY = 0x0, 339 ATA_LOG_SATA_NCQ = 0x10, 340 ATA_LOG_NCQ_NON_DATA = 0x12, 341 ATA_LOG_NCQ_SEND_RECV = 0x13, 342 ATA_LOG_IDENTIFY_DEVICE = 0x30, 343 344 /* Identify device log pages: */ 345 ATA_LOG_SECURITY = 0x06, 346 ATA_LOG_SATA_SETTINGS = 0x08, 347 ATA_LOG_ZONED_INFORMATION = 0x09, 348 349 /* Identify device SATA settings log:*/ 350 ATA_LOG_DEVSLP_OFFSET = 0x30, 351 ATA_LOG_DEVSLP_SIZE = 0x08, 352 ATA_LOG_DEVSLP_MDAT = 0x00, 353 ATA_LOG_DEVSLP_MDAT_MASK = 0x1F, 354 ATA_LOG_DEVSLP_DETO = 0x01, 355 ATA_LOG_DEVSLP_VALID = 0x07, 356 ATA_LOG_DEVSLP_VALID_MASK = 0x80, 357 ATA_LOG_NCQ_PRIO_OFFSET = 0x09, 358 359 /* NCQ send and receive log */ 360 ATA_LOG_NCQ_SEND_RECV_SUBCMDS_OFFSET = 0x00, 361 ATA_LOG_NCQ_SEND_RECV_SUBCMDS_DSM = (1 << 0), 362 ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET = 0x04, 363 ATA_LOG_NCQ_SEND_RECV_DSM_TRIM = (1 << 0), 364 ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET = 0x08, 365 ATA_LOG_NCQ_SEND_RECV_RD_LOG_SUPPORTED = (1 << 0), 366 ATA_LOG_NCQ_SEND_RECV_WR_LOG_OFFSET = 0x0C, 367 ATA_LOG_NCQ_SEND_RECV_WR_LOG_SUPPORTED = (1 << 0), 368 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OFFSET = 0x10, 369 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OUT_SUPPORTED = (1 << 0), 370 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_IN_SUPPORTED = (1 << 1), 371 ATA_LOG_NCQ_SEND_RECV_SIZE = 0x14, 372 373 /* NCQ Non-Data log */ 374 ATA_LOG_NCQ_NON_DATA_SUBCMDS_OFFSET = 0x00, 375 ATA_LOG_NCQ_NON_DATA_ABORT_OFFSET = 0x00, 376 ATA_LOG_NCQ_NON_DATA_ABORT_NCQ = (1 << 0), 377 ATA_LOG_NCQ_NON_DATA_ABORT_ALL = (1 << 1), 378 ATA_LOG_NCQ_NON_DATA_ABORT_STREAMING = (1 << 2), 379 ATA_LOG_NCQ_NON_DATA_ABORT_NON_STREAMING = (1 << 3), 380 ATA_LOG_NCQ_NON_DATA_ABORT_SELECTED = (1 << 4), 381 ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OFFSET = 0x1C, 382 ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OUT = (1 << 0), 383 ATA_LOG_NCQ_NON_DATA_SIZE = 0x40, 384 385 /* READ/WRITE LONG (obsolete) */ 386 ATA_CMD_READ_LONG = 0x22, 387 ATA_CMD_READ_LONG_ONCE = 0x23, 388 ATA_CMD_WRITE_LONG = 0x32, 389 ATA_CMD_WRITE_LONG_ONCE = 0x33, 390 391 /* SETFEATURES stuff */ 392 SETFEATURES_XFER = 0x03, 393 XFER_UDMA_7 = 0x47, 394 XFER_UDMA_6 = 0x46, 395 XFER_UDMA_5 = 0x45, 396 XFER_UDMA_4 = 0x44, 397 XFER_UDMA_3 = 0x43, 398 XFER_UDMA_2 = 0x42, 399 XFER_UDMA_1 = 0x41, 400 XFER_UDMA_0 = 0x40, 401 XFER_MW_DMA_4 = 0x24, /* CFA only */ 402 XFER_MW_DMA_3 = 0x23, /* CFA only */ 403 XFER_MW_DMA_2 = 0x22, 404 XFER_MW_DMA_1 = 0x21, 405 XFER_MW_DMA_0 = 0x20, 406 XFER_SW_DMA_2 = 0x12, 407 XFER_SW_DMA_1 = 0x11, 408 XFER_SW_DMA_0 = 0x10, 409 XFER_PIO_6 = 0x0E, /* CFA only */ 410 XFER_PIO_5 = 0x0D, /* CFA only */ 411 XFER_PIO_4 = 0x0C, 412 XFER_PIO_3 = 0x0B, 413 XFER_PIO_2 = 0x0A, 414 XFER_PIO_1 = 0x09, 415 XFER_PIO_0 = 0x08, 416 XFER_PIO_SLOW = 0x00, 417 418 SETFEATURES_WC_ON = 0x02, /* Enable write cache */ 419 SETFEATURES_WC_OFF = 0x82, /* Disable write cache */ 420 421 SETFEATURES_RA_ON = 0xaa, /* Enable read look-ahead */ 422 SETFEATURES_RA_OFF = 0x55, /* Disable read look-ahead */ 423 424 /* Enable/Disable Automatic Acoustic Management */ 425 SETFEATURES_AAM_ON = 0x42, 426 SETFEATURES_AAM_OFF = 0xC2, 427 428 SETFEATURES_SPINUP = 0x07, /* Spin-up drive */ 429 SETFEATURES_SPINUP_TIMEOUT = 30000, /* 30s timeout for drive spin-up from PUIS */ 430 431 SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */ 432 SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */ 433 434 /* SETFEATURE Sector counts for SATA features */ 435 SATA_FPDMA_OFFSET = 0x01, /* FPDMA non-zero buffer offsets */ 436 SATA_FPDMA_AA = 0x02, /* FPDMA Setup FIS Auto-Activate */ 437 SATA_DIPM = 0x03, /* Device Initiated Power Management */ 438 SATA_FPDMA_IN_ORDER = 0x04, /* FPDMA in-order data delivery */ 439 SATA_AN = 0x05, /* Asynchronous Notification */ 440 SATA_SSP = 0x06, /* Software Settings Preservation */ 441 SATA_DEVSLP = 0x09, /* Device Sleep */ 442 443 SETFEATURE_SENSE_DATA = 0xC3, /* Sense Data Reporting feature */ 444 445 /* feature values for SET_MAX */ 446 ATA_SET_MAX_ADDR = 0x00, 447 ATA_SET_MAX_PASSWD = 0x01, 448 ATA_SET_MAX_LOCK = 0x02, 449 ATA_SET_MAX_UNLOCK = 0x03, 450 ATA_SET_MAX_FREEZE_LOCK = 0x04, 451 ATA_SET_MAX_PASSWD_DMA = 0x05, 452 ATA_SET_MAX_UNLOCK_DMA = 0x06, 453 454 /* feature values for DEVICE CONFIGURATION OVERLAY */ 455 ATA_DCO_RESTORE = 0xC0, 456 ATA_DCO_FREEZE_LOCK = 0xC1, 457 ATA_DCO_IDENTIFY = 0xC2, 458 ATA_DCO_SET = 0xC3, 459 460 /* feature values for SMART */ 461 ATA_SMART_ENABLE = 0xD8, 462 ATA_SMART_READ_VALUES = 0xD0, 463 ATA_SMART_READ_THRESHOLDS = 0xD1, 464 465 /* feature values for Data Set Management */ 466 ATA_DSM_TRIM = 0x01, 467 468 /* password used in LBA Mid / LBA High for executing SMART commands */ 469 ATA_SMART_LBAM_PASS = 0x4F, 470 ATA_SMART_LBAH_PASS = 0xC2, 471 472 /* ATAPI stuff */ 473 ATAPI_PKT_DMA = (1 << 0), 474 ATAPI_DMADIR = (1 << 2), /* ATAPI data dir: 475 0=to device, 1=to host */ 476 ATAPI_CDB_LEN = 16, 477 478 /* PMP stuff */ 479 SATA_PMP_MAX_PORTS = 15, 480 SATA_PMP_CTRL_PORT = 15, 481 482 SATA_PMP_GSCR_DWORDS = 128, 483 SATA_PMP_GSCR_PROD_ID = 0, 484 SATA_PMP_GSCR_REV = 1, 485 SATA_PMP_GSCR_PORT_INFO = 2, 486 SATA_PMP_GSCR_ERROR = 32, 487 SATA_PMP_GSCR_ERROR_EN = 33, 488 SATA_PMP_GSCR_FEAT = 64, 489 SATA_PMP_GSCR_FEAT_EN = 96, 490 491 SATA_PMP_PSCR_STATUS = 0, 492 SATA_PMP_PSCR_ERROR = 1, 493 SATA_PMP_PSCR_CONTROL = 2, 494 495 SATA_PMP_FEAT_BIST = (1 << 0), 496 SATA_PMP_FEAT_PMREQ = (1 << 1), 497 SATA_PMP_FEAT_DYNSSC = (1 << 2), 498 SATA_PMP_FEAT_NOTIFY = (1 << 3), 499 500 /* cable types */ 501 ATA_CBL_NONE = 0, 502 ATA_CBL_PATA40 = 1, 503 ATA_CBL_PATA80 = 2, 504 ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */ 505 ATA_CBL_PATA_UNK = 4, /* don't know, maybe 80c? */ 506 ATA_CBL_PATA_IGN = 5, /* don't know, ignore cable handling */ 507 ATA_CBL_SATA = 6, 508 509 /* SATA Status and Control Registers */ 510 SCR_STATUS = 0, 511 SCR_ERROR = 1, 512 SCR_CONTROL = 2, 513 SCR_ACTIVE = 3, 514 SCR_NOTIFICATION = 4, 515 516 /* SError bits */ 517 SERR_DATA_RECOVERED = (1 << 0), /* recovered data error */ 518 SERR_COMM_RECOVERED = (1 << 1), /* recovered comm failure */ 519 SERR_DATA = (1 << 8), /* unrecovered data error */ 520 SERR_PERSISTENT = (1 << 9), /* persistent data/comm error */ 521 SERR_PROTOCOL = (1 << 10), /* protocol violation */ 522 SERR_INTERNAL = (1 << 11), /* host internal error */ 523 SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */ 524 SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */ 525 SERR_COMM_WAKE = (1 << 18), /* Comm wake */ 526 SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */ 527 SERR_DISPARITY = (1 << 20), /* Disparity */ 528 SERR_CRC = (1 << 21), /* CRC error */ 529 SERR_HANDSHAKE = (1 << 22), /* Handshake error */ 530 SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */ 531 SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */ 532 SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */ 533 SERR_DEV_XCHG = (1 << 26), /* device exchanged */ 534 }; 535 536 enum ata_prot_flags { 537 /* protocol flags */ 538 ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */ 539 ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */ 540 ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */ 541 ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */ 542 543 /* taskfile protocols */ 544 ATA_PROT_UNKNOWN = (u8)-1, 545 ATA_PROT_NODATA = 0, 546 ATA_PROT_PIO = ATA_PROT_FLAG_PIO, 547 ATA_PROT_DMA = ATA_PROT_FLAG_DMA, 548 ATA_PROT_NCQ_NODATA = ATA_PROT_FLAG_NCQ, 549 ATA_PROT_NCQ = ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ, 550 ATAPI_PROT_NODATA = ATA_PROT_FLAG_ATAPI, 551 ATAPI_PROT_PIO = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO, 552 ATAPI_PROT_DMA = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA, 553 }; 554 555 enum ata_ioctls { 556 ATA_IOC_GET_IO32 = 0x309, /* HDIO_GET_32BIT */ 557 ATA_IOC_SET_IO32 = 0x324, /* HDIO_SET_32BIT */ 558 }; 559 560 /* core structures */ 561 562 struct ata_bmdma_prd { 563 __le32 addr; 564 __le32 flags_len; 565 }; 566 567 /* 568 * id tests 569 */ 570 #define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0) 571 #define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9)) 572 #define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (1 << 8)) 573 #define ata_id_has_ncq(id) ((id)[ATA_ID_SATA_CAPABILITY] & (1 << 8)) 574 #define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1) 575 #define ata_id_removable(id) ((id)[ATA_ID_CONFIG] & (1 << 7)) 576 #define ata_id_has_atapi_AN(id) \ 577 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ 578 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ 579 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 5))) 580 #define ata_id_has_fpdma_aa(id) \ 581 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ 582 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ 583 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 2))) 584 #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10)) 585 #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11)) 586 #define ata_id_u32(id,n) \ 587 (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)])) 588 #define ata_id_u64(id,n) \ 589 ( ((u64) (id)[(n) + 3] << 48) | \ 590 ((u64) (id)[(n) + 2] << 32) | \ 591 ((u64) (id)[(n) + 1] << 16) | \ 592 ((u64) (id)[(n) + 0]) ) 593 594 #define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20) 595 #define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4)) 596 #define ata_id_has_devslp(id) ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8)) 597 #define ata_id_has_ncq_autosense(id) \ 598 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 7)) 599 600 static inline bool ata_id_has_hipm(const u16 *id) 601 { 602 u16 val = id[ATA_ID_SATA_CAPABILITY]; 603 604 if (val == 0 || val == 0xffff) 605 return false; 606 607 return val & (1 << 9); 608 } 609 610 static inline bool ata_id_has_dipm(const u16 *id) 611 { 612 u16 val = id[ATA_ID_FEATURE_SUPP]; 613 614 if (val == 0 || val == 0xffff) 615 return false; 616 617 return val & (1 << 3); 618 } 619 620 621 static inline bool ata_id_has_fua(const u16 *id) 622 { 623 if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000) 624 return false; 625 return id[ATA_ID_CFSSE] & (1 << 6); 626 } 627 628 static inline bool ata_id_has_flush(const u16 *id) 629 { 630 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 631 return false; 632 return id[ATA_ID_COMMAND_SET_2] & (1 << 12); 633 } 634 635 static inline bool ata_id_flush_enabled(const u16 *id) 636 { 637 if (ata_id_has_flush(id) == 0) 638 return false; 639 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 640 return false; 641 return id[ATA_ID_CFS_ENABLE_2] & (1 << 12); 642 } 643 644 static inline bool ata_id_has_flush_ext(const u16 *id) 645 { 646 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 647 return false; 648 return id[ATA_ID_COMMAND_SET_2] & (1 << 13); 649 } 650 651 static inline bool ata_id_flush_ext_enabled(const u16 *id) 652 { 653 if (ata_id_has_flush_ext(id) == 0) 654 return false; 655 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 656 return false; 657 /* 658 * some Maxtor disks have bit 13 defined incorrectly 659 * so check bit 10 too 660 */ 661 return (id[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400; 662 } 663 664 static inline u32 ata_id_logical_sector_size(const u16 *id) 665 { 666 /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. 667 * IDENTIFY DEVICE data, word 117-118. 668 * 0xd000 ignores bit 13 (logical:physical > 1) 669 */ 670 if ((id[ATA_ID_SECTOR_SIZE] & 0xd000) == 0x5000) 671 return (((id[ATA_ID_LOGICAL_SECTOR_SIZE+1] << 16) 672 + id[ATA_ID_LOGICAL_SECTOR_SIZE]) * sizeof(u16)) ; 673 return ATA_SECT_SIZE; 674 } 675 676 static inline u8 ata_id_log2_per_physical_sector(const u16 *id) 677 { 678 /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. 679 * IDENTIFY DEVICE data, word 106. 680 * 0xe000 ignores bit 12 (logical sector > 512 bytes) 681 */ 682 if ((id[ATA_ID_SECTOR_SIZE] & 0xe000) == 0x6000) 683 return (id[ATA_ID_SECTOR_SIZE] & 0xf); 684 return 0; 685 } 686 687 /* Offset of logical sectors relative to physical sectors. 688 * 689 * If device has more than one logical sector per physical sector 690 * (aka 512 byte emulation), vendors might offset the "sector 0" address 691 * so sector 63 is "naturally aligned" - e.g. FAT partition table. 692 * This avoids Read/Mod/Write penalties when using FAT partition table 693 * and updating "well aligned" (FS perspective) physical sectors on every 694 * transaction. 695 */ 696 static inline u16 ata_id_logical_sector_offset(const u16 *id, 697 u8 log2_per_phys) 698 { 699 u16 word_209 = id[209]; 700 701 if ((log2_per_phys > 1) && (word_209 & 0xc000) == 0x4000) { 702 u16 first = word_209 & 0x3fff; 703 if (first > 0) 704 return (1 << log2_per_phys) - first; 705 } 706 return 0; 707 } 708 709 static inline bool ata_id_has_lba48(const u16 *id) 710 { 711 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 712 return false; 713 if (!ata_id_u64(id, ATA_ID_LBA_CAPACITY_2)) 714 return false; 715 return id[ATA_ID_COMMAND_SET_2] & (1 << 10); 716 } 717 718 static inline bool ata_id_lba48_enabled(const u16 *id) 719 { 720 if (ata_id_has_lba48(id) == 0) 721 return false; 722 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 723 return false; 724 return id[ATA_ID_CFS_ENABLE_2] & (1 << 10); 725 } 726 727 static inline bool ata_id_hpa_enabled(const u16 *id) 728 { 729 /* Yes children, word 83 valid bits cover word 82 data */ 730 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 731 return false; 732 /* And 87 covers 85-87 */ 733 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 734 return false; 735 /* Check command sets enabled as well as supported */ 736 if ((id[ATA_ID_CFS_ENABLE_1] & (1 << 10)) == 0) 737 return false; 738 return id[ATA_ID_COMMAND_SET_1] & (1 << 10); 739 } 740 741 static inline bool ata_id_has_wcache(const u16 *id) 742 { 743 /* Yes children, word 83 valid bits cover word 82 data */ 744 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 745 return false; 746 return id[ATA_ID_COMMAND_SET_1] & (1 << 5); 747 } 748 749 static inline bool ata_id_has_pm(const u16 *id) 750 { 751 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 752 return false; 753 return id[ATA_ID_COMMAND_SET_1] & (1 << 3); 754 } 755 756 static inline bool ata_id_rahead_enabled(const u16 *id) 757 { 758 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 759 return false; 760 return id[ATA_ID_CFS_ENABLE_1] & (1 << 6); 761 } 762 763 static inline bool ata_id_wcache_enabled(const u16 *id) 764 { 765 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 766 return false; 767 return id[ATA_ID_CFS_ENABLE_1] & (1 << 5); 768 } 769 770 static inline bool ata_id_has_read_log_dma_ext(const u16 *id) 771 { 772 /* Word 86 must have bit 15 set */ 773 if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) 774 return false; 775 776 /* READ LOG DMA EXT support can be signaled either from word 119 777 * or from word 120. The format is the same for both words: Bit 778 * 15 must be cleared, bit 14 set and bit 3 set. 779 */ 780 if ((id[ATA_ID_COMMAND_SET_3] & 0xC008) == 0x4008 || 781 (id[ATA_ID_COMMAND_SET_4] & 0xC008) == 0x4008) 782 return true; 783 784 return false; 785 } 786 787 static inline bool ata_id_has_sense_reporting(const u16 *id) 788 { 789 if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) 790 return false; 791 return id[ATA_ID_COMMAND_SET_3] & (1 << 6); 792 } 793 794 static inline bool ata_id_sense_reporting_enabled(const u16 *id) 795 { 796 if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) 797 return false; 798 return id[ATA_ID_COMMAND_SET_4] & (1 << 6); 799 } 800 801 /** 802 * 803 * Word: 206 - SCT Command Transport 804 * 15:12 - Vendor Specific 805 * 11:6 - Reserved 806 * 5 - SCT Command Transport Data Tables supported 807 * 4 - SCT Command Transport Features Control supported 808 * 3 - SCT Command Transport Error Recovery Control supported 809 * 2 - SCT Command Transport Write Same supported 810 * 1 - SCT Command Transport Long Sector Access supported 811 * 0 - SCT Command Transport supported 812 */ 813 static inline bool ata_id_sct_data_tables(const u16 *id) 814 { 815 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 5) ? true : false; 816 } 817 818 static inline bool ata_id_sct_features_ctrl(const u16 *id) 819 { 820 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 4) ? true : false; 821 } 822 823 static inline bool ata_id_sct_error_recovery_ctrl(const u16 *id) 824 { 825 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 3) ? true : false; 826 } 827 828 static inline bool ata_id_sct_long_sector_access(const u16 *id) 829 { 830 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 1) ? true : false; 831 } 832 833 static inline bool ata_id_sct_supported(const u16 *id) 834 { 835 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 0) ? true : false; 836 } 837 838 /** 839 * ata_id_major_version - get ATA level of drive 840 * @id: Identify data 841 * 842 * Caveats: 843 * ATA-1 considers identify optional 844 * ATA-2 introduces mandatory identify 845 * ATA-3 introduces word 80 and accurate reporting 846 * 847 * The practical impact of this is that ata_id_major_version cannot 848 * reliably report on drives below ATA3. 849 */ 850 851 static inline unsigned int ata_id_major_version(const u16 *id) 852 { 853 unsigned int mver; 854 855 if (id[ATA_ID_MAJOR_VER] == 0xFFFF) 856 return 0; 857 858 for (mver = 14; mver >= 1; mver--) 859 if (id[ATA_ID_MAJOR_VER] & (1 << mver)) 860 break; 861 return mver; 862 } 863 864 static inline bool ata_id_is_sata(const u16 *id) 865 { 866 /* 867 * See if word 93 is 0 AND drive is at least ATA-5 compatible 868 * verifying that word 80 by casting it to a signed type -- 869 * this trick allows us to filter out the reserved values of 870 * 0x0000 and 0xffff along with the earlier ATA revisions... 871 */ 872 if (id[ATA_ID_HW_CONFIG] == 0 && (short)id[ATA_ID_MAJOR_VER] >= 0x0020) 873 return true; 874 return false; 875 } 876 877 static inline bool ata_id_has_tpm(const u16 *id) 878 { 879 /* The TPM bits are only valid on ATA8 */ 880 if (ata_id_major_version(id) < 8) 881 return false; 882 if ((id[48] & 0xC000) != 0x4000) 883 return false; 884 return id[48] & (1 << 0); 885 } 886 887 static inline bool ata_id_has_dword_io(const u16 *id) 888 { 889 /* ATA 8 reuses this flag for "trusted" computing */ 890 if (ata_id_major_version(id) > 7) 891 return false; 892 return id[ATA_ID_DWORD_IO] & (1 << 0); 893 } 894 895 static inline bool ata_id_has_trusted(const u16 *id) 896 { 897 if (ata_id_major_version(id) <= 7) 898 return false; 899 return id[ATA_ID_TRUSTED] & (1 << 0); 900 } 901 902 static inline bool ata_id_has_unload(const u16 *id) 903 { 904 if (ata_id_major_version(id) >= 7 && 905 (id[ATA_ID_CFSSE] & 0xC000) == 0x4000 && 906 id[ATA_ID_CFSSE] & (1 << 13)) 907 return true; 908 return false; 909 } 910 911 static inline bool ata_id_has_wwn(const u16 *id) 912 { 913 return (id[ATA_ID_CSF_DEFAULT] & 0xC100) == 0x4100; 914 } 915 916 static inline int ata_id_form_factor(const u16 *id) 917 { 918 u16 val = id[168]; 919 920 if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) 921 return 0; 922 923 val &= 0xf; 924 925 if (val > 5) 926 return 0; 927 928 return val; 929 } 930 931 static inline int ata_id_rotation_rate(const u16 *id) 932 { 933 u16 val = id[217]; 934 935 if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) 936 return 0; 937 938 if (val > 1 && val < 0x401) 939 return 0; 940 941 return val; 942 } 943 944 static inline bool ata_id_has_ncq_send_and_recv(const u16 *id) 945 { 946 return id[ATA_ID_SATA_CAPABILITY_2] & BIT(6); 947 } 948 949 static inline bool ata_id_has_ncq_non_data(const u16 *id) 950 { 951 return id[ATA_ID_SATA_CAPABILITY_2] & BIT(5); 952 } 953 954 static inline bool ata_id_has_ncq_prio(const u16 *id) 955 { 956 return id[ATA_ID_SATA_CAPABILITY] & BIT(12); 957 } 958 959 static inline bool ata_id_has_trim(const u16 *id) 960 { 961 if (ata_id_major_version(id) >= 7 && 962 (id[ATA_ID_DATA_SET_MGMT] & 1)) 963 return true; 964 return false; 965 } 966 967 static inline bool ata_id_has_zero_after_trim(const u16 *id) 968 { 969 /* DSM supported, deterministic read, and read zero after trim set */ 970 if (ata_id_has_trim(id) && 971 (id[ATA_ID_ADDITIONAL_SUPP] & 0x4020) == 0x4020) 972 return true; 973 974 return false; 975 } 976 977 static inline bool ata_id_current_chs_valid(const u16 *id) 978 { 979 /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command 980 has not been issued to the device then the values of 981 id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */ 982 return (id[ATA_ID_FIELD_VALID] & 1) && /* Current translation valid */ 983 id[ATA_ID_CUR_CYLS] && /* cylinders in current translation */ 984 id[ATA_ID_CUR_HEADS] && /* heads in current translation */ 985 id[ATA_ID_CUR_HEADS] <= 16 && 986 id[ATA_ID_CUR_SECTORS]; /* sectors in current translation */ 987 } 988 989 static inline bool ata_id_is_cfa(const u16 *id) 990 { 991 if ((id[ATA_ID_CONFIG] == 0x848A) || /* Traditional CF */ 992 (id[ATA_ID_CONFIG] == 0x844A)) /* Delkin Devices CF */ 993 return true; 994 /* 995 * CF specs don't require specific value in the word 0 anymore and yet 996 * they forbid to report the ATA version in the word 80 and require the 997 * CFA feature set support to be indicated in the word 83 in this case. 998 * Unfortunately, some cards only follow either of this requirements, 999 * and while those that don't indicate CFA feature support need some 1000 * sort of quirk list, it seems impractical for the ones that do... 1001 */ 1002 return (id[ATA_ID_COMMAND_SET_2] & 0xC004) == 0x4004; 1003 } 1004 1005 static inline bool ata_id_is_ssd(const u16 *id) 1006 { 1007 return id[ATA_ID_ROT_SPEED] == 0x01; 1008 } 1009 1010 static inline u8 ata_id_zoned_cap(const u16 *id) 1011 { 1012 return (id[ATA_ID_ADDITIONAL_SUPP] & 0x3); 1013 } 1014 1015 static inline bool ata_id_pio_need_iordy(const u16 *id, const u8 pio) 1016 { 1017 /* CF spec. r4.1 Table 22 says no IORDY on PIO5 and PIO6. */ 1018 if (pio > 4 && ata_id_is_cfa(id)) 1019 return false; 1020 /* For PIO3 and higher it is mandatory. */ 1021 if (pio > 2) 1022 return true; 1023 /* Turn it on when possible. */ 1024 return ata_id_has_iordy(id); 1025 } 1026 1027 static inline bool ata_drive_40wire(const u16 *dev_id) 1028 { 1029 if (ata_id_is_sata(dev_id)) 1030 return false; /* SATA */ 1031 if ((dev_id[ATA_ID_HW_CONFIG] & 0xE000) == 0x6000) 1032 return false; /* 80 wire */ 1033 return true; 1034 } 1035 1036 static inline bool ata_drive_40wire_relaxed(const u16 *dev_id) 1037 { 1038 if ((dev_id[ATA_ID_HW_CONFIG] & 0x2000) == 0x2000) 1039 return false; /* 80 wire */ 1040 return true; 1041 } 1042 1043 static inline int atapi_cdb_len(const u16 *dev_id) 1044 { 1045 u16 tmp = dev_id[ATA_ID_CONFIG] & 0x3; 1046 switch (tmp) { 1047 case 0: return 12; 1048 case 1: return 16; 1049 default: return -1; 1050 } 1051 } 1052 1053 static inline int atapi_command_packet_set(const u16 *dev_id) 1054 { 1055 return (dev_id[ATA_ID_CONFIG] >> 8) & 0x1f; 1056 } 1057 1058 static inline bool atapi_id_dmadir(const u16 *dev_id) 1059 { 1060 return ata_id_major_version(dev_id) >= 7 && (dev_id[62] & 0x8000); 1061 } 1062 1063 /* 1064 * ata_id_is_lba_capacity_ok() performs a sanity check on 1065 * the claimed LBA capacity value for the device. 1066 * 1067 * Returns 1 if LBA capacity looks sensible, 0 otherwise. 1068 * 1069 * It is called only once for each device. 1070 */ 1071 static inline bool ata_id_is_lba_capacity_ok(u16 *id) 1072 { 1073 unsigned long lba_sects, chs_sects, head, tail; 1074 1075 /* No non-LBA info .. so valid! */ 1076 if (id[ATA_ID_CYLS] == 0) 1077 return true; 1078 1079 lba_sects = ata_id_u32(id, ATA_ID_LBA_CAPACITY); 1080 1081 /* 1082 * The ATA spec tells large drives to return 1083 * C/H/S = 16383/16/63 independent of their size. 1084 * Some drives can be jumpered to use 15 heads instead of 16. 1085 * Some drives can be jumpered to use 4092 cyls instead of 16383. 1086 */ 1087 if ((id[ATA_ID_CYLS] == 16383 || 1088 (id[ATA_ID_CYLS] == 4092 && id[ATA_ID_CUR_CYLS] == 16383)) && 1089 id[ATA_ID_SECTORS] == 63 && 1090 (id[ATA_ID_HEADS] == 15 || id[ATA_ID_HEADS] == 16) && 1091 (lba_sects >= 16383 * 63 * id[ATA_ID_HEADS])) 1092 return true; 1093 1094 chs_sects = id[ATA_ID_CYLS] * id[ATA_ID_HEADS] * id[ATA_ID_SECTORS]; 1095 1096 /* perform a rough sanity check on lba_sects: within 10% is OK */ 1097 if (lba_sects - chs_sects < chs_sects/10) 1098 return true; 1099 1100 /* some drives have the word order reversed */ 1101 head = (lba_sects >> 16) & 0xffff; 1102 tail = lba_sects & 0xffff; 1103 lba_sects = head | (tail << 16); 1104 1105 if (lba_sects - chs_sects < chs_sects/10) { 1106 *(__le32 *)&id[ATA_ID_LBA_CAPACITY] = __cpu_to_le32(lba_sects); 1107 return true; /* LBA capacity is (now) good */ 1108 } 1109 1110 return false; /* LBA capacity value may be bad */ 1111 } 1112 1113 static inline void ata_id_to_hd_driveid(u16 *id) 1114 { 1115 #ifdef __BIG_ENDIAN 1116 /* accessed in struct hd_driveid as 8-bit values */ 1117 id[ATA_ID_MAX_MULTSECT] = __cpu_to_le16(id[ATA_ID_MAX_MULTSECT]); 1118 id[ATA_ID_CAPABILITY] = __cpu_to_le16(id[ATA_ID_CAPABILITY]); 1119 id[ATA_ID_OLD_PIO_MODES] = __cpu_to_le16(id[ATA_ID_OLD_PIO_MODES]); 1120 id[ATA_ID_OLD_DMA_MODES] = __cpu_to_le16(id[ATA_ID_OLD_DMA_MODES]); 1121 id[ATA_ID_MULTSECT] = __cpu_to_le16(id[ATA_ID_MULTSECT]); 1122 1123 /* as 32-bit values */ 1124 *(u32 *)&id[ATA_ID_LBA_CAPACITY] = ata_id_u32(id, ATA_ID_LBA_CAPACITY); 1125 *(u32 *)&id[ATA_ID_SPG] = ata_id_u32(id, ATA_ID_SPG); 1126 1127 /* as 64-bit value */ 1128 *(u64 *)&id[ATA_ID_LBA_CAPACITY_2] = 1129 ata_id_u64(id, ATA_ID_LBA_CAPACITY_2); 1130 #endif 1131 } 1132 1133 static inline bool ata_ok(u8 status) 1134 { 1135 return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR)) 1136 == ATA_DRDY); 1137 } 1138 1139 static inline bool lba_28_ok(u64 block, u32 n_block) 1140 { 1141 /* check the ending block number: must be LESS THAN 0x0fffffff */ 1142 return ((block + n_block) < ((1 << 28) - 1)) && (n_block <= ATA_MAX_SECTORS); 1143 } 1144 1145 static inline bool lba_48_ok(u64 block, u32 n_block) 1146 { 1147 /* check the ending block number */ 1148 return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= ATA_MAX_SECTORS_LBA48); 1149 } 1150 1151 #define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff) 1152 #define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16) 1153 #define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff) 1154 #define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf) 1155 1156 #endif /* __LINUX_ATA_H__ */ 1157