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_CONCURRENT_POSITIONING_RANGES = 0x47, 329 330 /* Identify device log pages: */ 331 ATA_LOG_SUPPORTED_CAPABILITIES = 0x03, 332 ATA_LOG_CURRENT_SETTINGS = 0x04, 333 ATA_LOG_SECURITY = 0x06, 334 ATA_LOG_SATA_SETTINGS = 0x08, 335 ATA_LOG_ZONED_INFORMATION = 0x09, 336 337 /* Identify device SATA settings log: */ 338 ATA_LOG_DEVSLP_OFFSET = 0x30, 339 ATA_LOG_DEVSLP_SIZE = 0x08, 340 ATA_LOG_DEVSLP_MDAT = 0x00, 341 ATA_LOG_DEVSLP_MDAT_MASK = 0x1F, 342 ATA_LOG_DEVSLP_DETO = 0x01, 343 ATA_LOG_DEVSLP_VALID = 0x07, 344 ATA_LOG_DEVSLP_VALID_MASK = 0x80, 345 ATA_LOG_NCQ_PRIO_OFFSET = 0x09, 346 347 /* NCQ send and receive log */ 348 ATA_LOG_NCQ_SEND_RECV_SUBCMDS_OFFSET = 0x00, 349 ATA_LOG_NCQ_SEND_RECV_SUBCMDS_DSM = (1 << 0), 350 ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET = 0x04, 351 ATA_LOG_NCQ_SEND_RECV_DSM_TRIM = (1 << 0), 352 ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET = 0x08, 353 ATA_LOG_NCQ_SEND_RECV_RD_LOG_SUPPORTED = (1 << 0), 354 ATA_LOG_NCQ_SEND_RECV_WR_LOG_OFFSET = 0x0C, 355 ATA_LOG_NCQ_SEND_RECV_WR_LOG_SUPPORTED = (1 << 0), 356 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OFFSET = 0x10, 357 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OUT_SUPPORTED = (1 << 0), 358 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_IN_SUPPORTED = (1 << 1), 359 ATA_LOG_NCQ_SEND_RECV_SIZE = 0x14, 360 361 /* NCQ Non-Data log */ 362 ATA_LOG_NCQ_NON_DATA_SUBCMDS_OFFSET = 0x00, 363 ATA_LOG_NCQ_NON_DATA_ABORT_OFFSET = 0x00, 364 ATA_LOG_NCQ_NON_DATA_ABORT_NCQ = (1 << 0), 365 ATA_LOG_NCQ_NON_DATA_ABORT_ALL = (1 << 1), 366 ATA_LOG_NCQ_NON_DATA_ABORT_STREAMING = (1 << 2), 367 ATA_LOG_NCQ_NON_DATA_ABORT_NON_STREAMING = (1 << 3), 368 ATA_LOG_NCQ_NON_DATA_ABORT_SELECTED = (1 << 4), 369 ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OFFSET = 0x1C, 370 ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OUT = (1 << 0), 371 ATA_LOG_NCQ_NON_DATA_SIZE = 0x40, 372 373 /* READ/WRITE LONG (obsolete) */ 374 ATA_CMD_READ_LONG = 0x22, 375 ATA_CMD_READ_LONG_ONCE = 0x23, 376 ATA_CMD_WRITE_LONG = 0x32, 377 ATA_CMD_WRITE_LONG_ONCE = 0x33, 378 379 /* SETFEATURES stuff */ 380 SETFEATURES_XFER = 0x03, 381 XFER_UDMA_7 = 0x47, 382 XFER_UDMA_6 = 0x46, 383 XFER_UDMA_5 = 0x45, 384 XFER_UDMA_4 = 0x44, 385 XFER_UDMA_3 = 0x43, 386 XFER_UDMA_2 = 0x42, 387 XFER_UDMA_1 = 0x41, 388 XFER_UDMA_0 = 0x40, 389 XFER_MW_DMA_4 = 0x24, /* CFA only */ 390 XFER_MW_DMA_3 = 0x23, /* CFA only */ 391 XFER_MW_DMA_2 = 0x22, 392 XFER_MW_DMA_1 = 0x21, 393 XFER_MW_DMA_0 = 0x20, 394 XFER_SW_DMA_2 = 0x12, 395 XFER_SW_DMA_1 = 0x11, 396 XFER_SW_DMA_0 = 0x10, 397 XFER_PIO_6 = 0x0E, /* CFA only */ 398 XFER_PIO_5 = 0x0D, /* CFA only */ 399 XFER_PIO_4 = 0x0C, 400 XFER_PIO_3 = 0x0B, 401 XFER_PIO_2 = 0x0A, 402 XFER_PIO_1 = 0x09, 403 XFER_PIO_0 = 0x08, 404 XFER_PIO_SLOW = 0x00, 405 406 SETFEATURES_WC_ON = 0x02, /* Enable write cache */ 407 SETFEATURES_WC_OFF = 0x82, /* Disable write cache */ 408 409 SETFEATURES_RA_ON = 0xaa, /* Enable read look-ahead */ 410 SETFEATURES_RA_OFF = 0x55, /* Disable read look-ahead */ 411 412 /* Enable/Disable Automatic Acoustic Management */ 413 SETFEATURES_AAM_ON = 0x42, 414 SETFEATURES_AAM_OFF = 0xC2, 415 416 SETFEATURES_SPINUP = 0x07, /* Spin-up drive */ 417 SETFEATURES_SPINUP_TIMEOUT = 30000, /* 30s timeout for drive spin-up from PUIS */ 418 419 SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */ 420 SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */ 421 422 SETFEATURES_CDL = 0x0d, /* Enable/disable cmd duration limits */ 423 424 /* SETFEATURE Sector counts for SATA features */ 425 SATA_FPDMA_OFFSET = 0x01, /* FPDMA non-zero buffer offsets */ 426 SATA_FPDMA_AA = 0x02, /* FPDMA Setup FIS Auto-Activate */ 427 SATA_DIPM = 0x03, /* Device Initiated Power Management */ 428 SATA_FPDMA_IN_ORDER = 0x04, /* FPDMA in-order data delivery */ 429 SATA_AN = 0x05, /* Asynchronous Notification */ 430 SATA_SSP = 0x06, /* Software Settings Preservation */ 431 SATA_DEVSLP = 0x09, /* Device Sleep */ 432 433 SETFEATURE_SENSE_DATA = 0xC3, /* Sense Data Reporting feature */ 434 435 /* feature values for SET_MAX */ 436 ATA_SET_MAX_ADDR = 0x00, 437 ATA_SET_MAX_PASSWD = 0x01, 438 ATA_SET_MAX_LOCK = 0x02, 439 ATA_SET_MAX_UNLOCK = 0x03, 440 ATA_SET_MAX_FREEZE_LOCK = 0x04, 441 ATA_SET_MAX_PASSWD_DMA = 0x05, 442 ATA_SET_MAX_UNLOCK_DMA = 0x06, 443 444 /* feature values for DEVICE CONFIGURATION OVERLAY */ 445 ATA_DCO_RESTORE = 0xC0, 446 ATA_DCO_FREEZE_LOCK = 0xC1, 447 ATA_DCO_IDENTIFY = 0xC2, 448 ATA_DCO_SET = 0xC3, 449 450 /* feature values for SMART */ 451 ATA_SMART_ENABLE = 0xD8, 452 ATA_SMART_READ_VALUES = 0xD0, 453 ATA_SMART_READ_THRESHOLDS = 0xD1, 454 455 /* feature values for Data Set Management */ 456 ATA_DSM_TRIM = 0x01, 457 458 /* password used in LBA Mid / LBA High for executing SMART commands */ 459 ATA_SMART_LBAM_PASS = 0x4F, 460 ATA_SMART_LBAH_PASS = 0xC2, 461 462 /* ATAPI stuff */ 463 ATAPI_PKT_DMA = (1 << 0), 464 ATAPI_DMADIR = (1 << 2), /* ATAPI data dir: 465 0=to device, 1=to host */ 466 ATAPI_CDB_LEN = 16, 467 468 /* PMP stuff */ 469 SATA_PMP_MAX_PORTS = 15, 470 SATA_PMP_CTRL_PORT = 15, 471 472 SATA_PMP_GSCR_DWORDS = 128, 473 SATA_PMP_GSCR_PROD_ID = 0, 474 SATA_PMP_GSCR_REV = 1, 475 SATA_PMP_GSCR_PORT_INFO = 2, 476 SATA_PMP_GSCR_ERROR = 32, 477 SATA_PMP_GSCR_ERROR_EN = 33, 478 SATA_PMP_GSCR_FEAT = 64, 479 SATA_PMP_GSCR_FEAT_EN = 96, 480 481 SATA_PMP_PSCR_STATUS = 0, 482 SATA_PMP_PSCR_ERROR = 1, 483 SATA_PMP_PSCR_CONTROL = 2, 484 485 SATA_PMP_FEAT_BIST = (1 << 0), 486 SATA_PMP_FEAT_PMREQ = (1 << 1), 487 SATA_PMP_FEAT_DYNSSC = (1 << 2), 488 SATA_PMP_FEAT_NOTIFY = (1 << 3), 489 490 /* cable types */ 491 ATA_CBL_NONE = 0, 492 ATA_CBL_PATA40 = 1, 493 ATA_CBL_PATA80 = 2, 494 ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */ 495 ATA_CBL_PATA_UNK = 4, /* don't know, maybe 80c? */ 496 ATA_CBL_PATA_IGN = 5, /* don't know, ignore cable handling */ 497 ATA_CBL_SATA = 6, 498 499 /* SATA Status and Control Registers */ 500 SCR_STATUS = 0, 501 SCR_ERROR = 1, 502 SCR_CONTROL = 2, 503 SCR_ACTIVE = 3, 504 SCR_NOTIFICATION = 4, 505 506 /* SError bits */ 507 SERR_DATA_RECOVERED = (1 << 0), /* recovered data error */ 508 SERR_COMM_RECOVERED = (1 << 1), /* recovered comm failure */ 509 SERR_DATA = (1 << 8), /* unrecovered data error */ 510 SERR_PERSISTENT = (1 << 9), /* persistent data/comm error */ 511 SERR_PROTOCOL = (1 << 10), /* protocol violation */ 512 SERR_INTERNAL = (1 << 11), /* host internal error */ 513 SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */ 514 SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */ 515 SERR_COMM_WAKE = (1 << 18), /* Comm wake */ 516 SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */ 517 SERR_DISPARITY = (1 << 20), /* Disparity */ 518 SERR_CRC = (1 << 21), /* CRC error */ 519 SERR_HANDSHAKE = (1 << 22), /* Handshake error */ 520 SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */ 521 SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */ 522 SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */ 523 SERR_DEV_XCHG = (1 << 26), /* device exchanged */ 524 }; 525 526 enum ata_prot_flags { 527 /* protocol flags */ 528 ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */ 529 ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */ 530 ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */ 531 ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */ 532 533 /* taskfile protocols */ 534 ATA_PROT_UNKNOWN = (u8)-1, 535 ATA_PROT_NODATA = 0, 536 ATA_PROT_PIO = ATA_PROT_FLAG_PIO, 537 ATA_PROT_DMA = ATA_PROT_FLAG_DMA, 538 ATA_PROT_NCQ_NODATA = ATA_PROT_FLAG_NCQ, 539 ATA_PROT_NCQ = ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ, 540 ATAPI_PROT_NODATA = ATA_PROT_FLAG_ATAPI, 541 ATAPI_PROT_PIO = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO, 542 ATAPI_PROT_DMA = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA, 543 }; 544 545 enum ata_ioctls { 546 ATA_IOC_GET_IO32 = 0x309, /* HDIO_GET_32BIT */ 547 ATA_IOC_SET_IO32 = 0x324, /* HDIO_SET_32BIT */ 548 }; 549 550 /* core structures */ 551 552 struct ata_bmdma_prd { 553 __le32 addr; 554 __le32 flags_len; 555 }; 556 557 /* 558 * id tests 559 */ 560 #define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0) 561 #define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9)) 562 #define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (1 << 8)) 563 #define ata_id_has_ncq(id) ((id)[ATA_ID_SATA_CAPABILITY] & (1 << 8)) 564 #define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1) 565 #define ata_id_removable(id) ((id)[ATA_ID_CONFIG] & (1 << 7)) 566 #define ata_id_has_atapi_AN(id) \ 567 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ 568 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ 569 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 5))) 570 #define ata_id_has_fpdma_aa(id) \ 571 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ 572 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ 573 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 2))) 574 #define ata_id_has_devslp(id) \ 575 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ 576 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ 577 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8))) 578 #define ata_id_has_ncq_autosense(id) \ 579 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ 580 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ 581 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 7))) 582 #define ata_id_has_dipm(id) \ 583 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ 584 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ 585 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 3))) 586 #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10)) 587 #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11)) 588 #define ata_id_u32(id,n) \ 589 (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)])) 590 #define ata_id_u64(id,n) \ 591 ( ((u64) (id)[(n) + 3] << 48) | \ 592 ((u64) (id)[(n) + 2] << 32) | \ 593 ((u64) (id)[(n) + 1] << 16) | \ 594 ((u64) (id)[(n) + 0]) ) 595 596 #define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20) 597 #define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4)) 598 599 static inline bool ata_id_has_hipm(const u16 *id) 600 { 601 u16 val = id[ATA_ID_SATA_CAPABILITY]; 602 603 if (val == 0 || val == 0xffff) 604 return false; 605 606 return val & (1 << 9); 607 } 608 609 static inline bool ata_id_has_fua(const u16 *id) 610 { 611 if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000) 612 return false; 613 return id[ATA_ID_CFSSE] & (1 << 6); 614 } 615 616 static inline bool ata_id_has_flush(const u16 *id) 617 { 618 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 619 return false; 620 return id[ATA_ID_COMMAND_SET_2] & (1 << 12); 621 } 622 623 static inline bool ata_id_has_flush_ext(const u16 *id) 624 { 625 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 626 return false; 627 return id[ATA_ID_COMMAND_SET_2] & (1 << 13); 628 } 629 630 static inline u32 ata_id_logical_sector_size(const u16 *id) 631 { 632 /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. 633 * IDENTIFY DEVICE data, word 117-118. 634 * 0xd000 ignores bit 13 (logical:physical > 1) 635 */ 636 if ((id[ATA_ID_SECTOR_SIZE] & 0xd000) == 0x5000) 637 return (((id[ATA_ID_LOGICAL_SECTOR_SIZE+1] << 16) 638 + id[ATA_ID_LOGICAL_SECTOR_SIZE]) * sizeof(u16)) ; 639 return ATA_SECT_SIZE; 640 } 641 642 static inline u8 ata_id_log2_per_physical_sector(const u16 *id) 643 { 644 /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. 645 * IDENTIFY DEVICE data, word 106. 646 * 0xe000 ignores bit 12 (logical sector > 512 bytes) 647 */ 648 if ((id[ATA_ID_SECTOR_SIZE] & 0xe000) == 0x6000) 649 return (id[ATA_ID_SECTOR_SIZE] & 0xf); 650 return 0; 651 } 652 653 /* Offset of logical sectors relative to physical sectors. 654 * 655 * If device has more than one logical sector per physical sector 656 * (aka 512 byte emulation), vendors might offset the "sector 0" address 657 * so sector 63 is "naturally aligned" - e.g. FAT partition table. 658 * This avoids Read/Mod/Write penalties when using FAT partition table 659 * and updating "well aligned" (FS perspective) physical sectors on every 660 * transaction. 661 */ 662 static inline u16 ata_id_logical_sector_offset(const u16 *id, 663 u8 log2_per_phys) 664 { 665 u16 word_209 = id[209]; 666 667 if ((log2_per_phys > 1) && (word_209 & 0xc000) == 0x4000) { 668 u16 first = word_209 & 0x3fff; 669 if (first > 0) 670 return (1 << log2_per_phys) - first; 671 } 672 return 0; 673 } 674 675 static inline bool ata_id_has_lba48(const u16 *id) 676 { 677 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 678 return false; 679 if (!ata_id_u64(id, ATA_ID_LBA_CAPACITY_2)) 680 return false; 681 return id[ATA_ID_COMMAND_SET_2] & (1 << 10); 682 } 683 684 static inline bool ata_id_hpa_enabled(const u16 *id) 685 { 686 /* Yes children, word 83 valid bits cover word 82 data */ 687 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 688 return false; 689 /* And 87 covers 85-87 */ 690 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 691 return false; 692 /* Check command sets enabled as well as supported */ 693 if ((id[ATA_ID_CFS_ENABLE_1] & (1 << 10)) == 0) 694 return false; 695 return id[ATA_ID_COMMAND_SET_1] & (1 << 10); 696 } 697 698 static inline bool ata_id_has_wcache(const u16 *id) 699 { 700 /* Yes children, word 83 valid bits cover word 82 data */ 701 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 702 return false; 703 return id[ATA_ID_COMMAND_SET_1] & (1 << 5); 704 } 705 706 static inline bool ata_id_has_pm(const u16 *id) 707 { 708 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 709 return false; 710 return id[ATA_ID_COMMAND_SET_1] & (1 << 3); 711 } 712 713 static inline bool ata_id_rahead_enabled(const u16 *id) 714 { 715 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 716 return false; 717 return id[ATA_ID_CFS_ENABLE_1] & (1 << 6); 718 } 719 720 static inline bool ata_id_wcache_enabled(const u16 *id) 721 { 722 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 723 return false; 724 return id[ATA_ID_CFS_ENABLE_1] & (1 << 5); 725 } 726 727 static inline bool ata_id_has_read_log_dma_ext(const u16 *id) 728 { 729 /* Word 86 must have bit 15 set */ 730 if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) 731 return false; 732 733 /* READ LOG DMA EXT support can be signaled either from word 119 734 * or from word 120. The format is the same for both words: Bit 735 * 15 must be cleared, bit 14 set and bit 3 set. 736 */ 737 if ((id[ATA_ID_COMMAND_SET_3] & 0xC008) == 0x4008 || 738 (id[ATA_ID_COMMAND_SET_4] & 0xC008) == 0x4008) 739 return true; 740 741 return false; 742 } 743 744 static inline bool ata_id_has_sense_reporting(const u16 *id) 745 { 746 if (!(id[ATA_ID_CFS_ENABLE_2] & BIT(15))) 747 return false; 748 if ((id[ATA_ID_COMMAND_SET_3] & (BIT(15) | BIT(14))) != BIT(14)) 749 return false; 750 return id[ATA_ID_COMMAND_SET_3] & BIT(6); 751 } 752 753 static inline bool ata_id_sense_reporting_enabled(const u16 *id) 754 { 755 if (!ata_id_has_sense_reporting(id)) 756 return false; 757 /* ata_id_has_sense_reporting() == true, word 86 must have bit 15 set */ 758 if ((id[ATA_ID_COMMAND_SET_4] & (BIT(15) | BIT(14))) != BIT(14)) 759 return false; 760 return id[ATA_ID_COMMAND_SET_4] & BIT(6); 761 } 762 763 /** 764 * 765 * Word: 206 - SCT Command Transport 766 * 15:12 - Vendor Specific 767 * 11:6 - Reserved 768 * 5 - SCT Command Transport Data Tables supported 769 * 4 - SCT Command Transport Features Control supported 770 * 3 - SCT Command Transport Error Recovery Control supported 771 * 2 - SCT Command Transport Write Same supported 772 * 1 - SCT Command Transport Long Sector Access supported 773 * 0 - SCT Command Transport supported 774 */ 775 static inline bool ata_id_sct_data_tables(const u16 *id) 776 { 777 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 5) ? true : false; 778 } 779 780 static inline bool ata_id_sct_features_ctrl(const u16 *id) 781 { 782 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 4) ? true : false; 783 } 784 785 static inline bool ata_id_sct_error_recovery_ctrl(const u16 *id) 786 { 787 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 3) ? true : false; 788 } 789 790 static inline bool ata_id_sct_long_sector_access(const u16 *id) 791 { 792 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 1) ? true : false; 793 } 794 795 static inline bool ata_id_sct_supported(const u16 *id) 796 { 797 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 0) ? true : false; 798 } 799 800 /** 801 * ata_id_major_version - get ATA level of drive 802 * @id: Identify data 803 * 804 * Caveats: 805 * ATA-1 considers identify optional 806 * ATA-2 introduces mandatory identify 807 * ATA-3 introduces word 80 and accurate reporting 808 * 809 * The practical impact of this is that ata_id_major_version cannot 810 * reliably report on drives below ATA3. 811 */ 812 813 static inline unsigned int ata_id_major_version(const u16 *id) 814 { 815 unsigned int mver; 816 817 if (id[ATA_ID_MAJOR_VER] == 0xFFFF) 818 return 0; 819 820 for (mver = 14; mver >= 1; mver--) 821 if (id[ATA_ID_MAJOR_VER] & (1 << mver)) 822 break; 823 return mver; 824 } 825 826 static inline bool ata_id_is_sata(const u16 *id) 827 { 828 /* 829 * See if word 93 is 0 AND drive is at least ATA-5 compatible 830 * verifying that word 80 by casting it to a signed type -- 831 * this trick allows us to filter out the reserved values of 832 * 0x0000 and 0xffff along with the earlier ATA revisions... 833 */ 834 if (id[ATA_ID_HW_CONFIG] == 0 && (short)id[ATA_ID_MAJOR_VER] >= 0x0020) 835 return true; 836 return false; 837 } 838 839 static inline bool ata_id_has_tpm(const u16 *id) 840 { 841 /* The TPM bits are only valid on ATA8 */ 842 if (ata_id_major_version(id) < 8) 843 return false; 844 if ((id[48] & 0xC000) != 0x4000) 845 return false; 846 return id[48] & (1 << 0); 847 } 848 849 static inline bool ata_id_has_dword_io(const u16 *id) 850 { 851 /* ATA 8 reuses this flag for "trusted" computing */ 852 if (ata_id_major_version(id) > 7) 853 return false; 854 return id[ATA_ID_DWORD_IO] & (1 << 0); 855 } 856 857 static inline bool ata_id_has_trusted(const u16 *id) 858 { 859 if (ata_id_major_version(id) <= 7) 860 return false; 861 return id[ATA_ID_TRUSTED] & (1 << 0); 862 } 863 864 static inline bool ata_id_has_unload(const u16 *id) 865 { 866 if (ata_id_major_version(id) >= 7 && 867 (id[ATA_ID_CFSSE] & 0xC000) == 0x4000 && 868 id[ATA_ID_CFSSE] & (1 << 13)) 869 return true; 870 return false; 871 } 872 873 static inline bool ata_id_has_wwn(const u16 *id) 874 { 875 return (id[ATA_ID_CSF_DEFAULT] & 0xC100) == 0x4100; 876 } 877 878 static inline int ata_id_form_factor(const u16 *id) 879 { 880 u16 val = id[168]; 881 882 if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) 883 return 0; 884 885 val &= 0xf; 886 887 if (val > 5) 888 return 0; 889 890 return val; 891 } 892 893 static inline int ata_id_rotation_rate(const u16 *id) 894 { 895 u16 val = id[217]; 896 897 if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) 898 return 0; 899 900 if (val > 1 && val < 0x401) 901 return 0; 902 903 return val; 904 } 905 906 static inline bool ata_id_has_ncq_send_and_recv(const u16 *id) 907 { 908 return id[ATA_ID_SATA_CAPABILITY_2] & BIT(6); 909 } 910 911 static inline bool ata_id_has_ncq_non_data(const u16 *id) 912 { 913 return id[ATA_ID_SATA_CAPABILITY_2] & BIT(5); 914 } 915 916 static inline bool ata_id_has_ncq_prio(const u16 *id) 917 { 918 return id[ATA_ID_SATA_CAPABILITY] & BIT(12); 919 } 920 921 static inline bool ata_id_has_trim(const u16 *id) 922 { 923 if (ata_id_major_version(id) >= 7 && 924 (id[ATA_ID_DATA_SET_MGMT] & 1)) 925 return true; 926 return false; 927 } 928 929 static inline bool ata_id_has_zero_after_trim(const u16 *id) 930 { 931 /* DSM supported, deterministic read, and read zero after trim set */ 932 if (ata_id_has_trim(id) && 933 (id[ATA_ID_ADDITIONAL_SUPP] & 0x4020) == 0x4020) 934 return true; 935 936 return false; 937 } 938 939 static inline bool ata_id_current_chs_valid(const u16 *id) 940 { 941 /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command 942 has not been issued to the device then the values of 943 id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */ 944 return (id[ATA_ID_FIELD_VALID] & 1) && /* Current translation valid */ 945 id[ATA_ID_CUR_CYLS] && /* cylinders in current translation */ 946 id[ATA_ID_CUR_HEADS] && /* heads in current translation */ 947 id[ATA_ID_CUR_HEADS] <= 16 && 948 id[ATA_ID_CUR_SECTORS]; /* sectors in current translation */ 949 } 950 951 static inline bool ata_id_is_cfa(const u16 *id) 952 { 953 if ((id[ATA_ID_CONFIG] == 0x848A) || /* Traditional CF */ 954 (id[ATA_ID_CONFIG] == 0x844A)) /* Delkin Devices CF */ 955 return true; 956 /* 957 * CF specs don't require specific value in the word 0 anymore and yet 958 * they forbid to report the ATA version in the word 80 and require the 959 * CFA feature set support to be indicated in the word 83 in this case. 960 * Unfortunately, some cards only follow either of this requirements, 961 * and while those that don't indicate CFA feature support need some 962 * sort of quirk list, it seems impractical for the ones that do... 963 */ 964 return (id[ATA_ID_COMMAND_SET_2] & 0xC004) == 0x4004; 965 } 966 967 static inline bool ata_id_is_ssd(const u16 *id) 968 { 969 return id[ATA_ID_ROT_SPEED] == 0x01; 970 } 971 972 static inline u8 ata_id_zoned_cap(const u16 *id) 973 { 974 return (id[ATA_ID_ADDITIONAL_SUPP] & 0x3); 975 } 976 977 static inline bool ata_id_pio_need_iordy(const u16 *id, const u8 pio) 978 { 979 /* CF spec. r4.1 Table 22 says no IORDY on PIO5 and PIO6. */ 980 if (pio > 4 && ata_id_is_cfa(id)) 981 return false; 982 /* For PIO3 and higher it is mandatory. */ 983 if (pio > 2) 984 return true; 985 /* Turn it on when possible. */ 986 return ata_id_has_iordy(id); 987 } 988 989 static inline bool ata_drive_40wire(const u16 *dev_id) 990 { 991 if (ata_id_is_sata(dev_id)) 992 return false; /* SATA */ 993 if ((dev_id[ATA_ID_HW_CONFIG] & 0xE000) == 0x6000) 994 return false; /* 80 wire */ 995 return true; 996 } 997 998 static inline bool ata_drive_40wire_relaxed(const u16 *dev_id) 999 { 1000 if ((dev_id[ATA_ID_HW_CONFIG] & 0x2000) == 0x2000) 1001 return false; /* 80 wire */ 1002 return true; 1003 } 1004 1005 static inline int atapi_cdb_len(const u16 *dev_id) 1006 { 1007 u16 tmp = dev_id[ATA_ID_CONFIG] & 0x3; 1008 switch (tmp) { 1009 case 0: return 12; 1010 case 1: return 16; 1011 default: return -1; 1012 } 1013 } 1014 1015 static inline int atapi_command_packet_set(const u16 *dev_id) 1016 { 1017 return (dev_id[ATA_ID_CONFIG] >> 8) & 0x1f; 1018 } 1019 1020 static inline bool atapi_id_dmadir(const u16 *dev_id) 1021 { 1022 return ata_id_major_version(dev_id) >= 7 && (dev_id[62] & 0x8000); 1023 } 1024 1025 static inline bool ata_ok(u8 status) 1026 { 1027 return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR)) 1028 == ATA_DRDY); 1029 } 1030 1031 static inline bool lba_28_ok(u64 block, u32 n_block) 1032 { 1033 /* check the ending block number: must be LESS THAN 0x0fffffff */ 1034 return ((block + n_block) < ((1 << 28) - 1)) && (n_block <= ATA_MAX_SECTORS); 1035 } 1036 1037 static inline bool lba_48_ok(u64 block, u32 n_block) 1038 { 1039 /* check the ending block number */ 1040 return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= ATA_MAX_SECTORS_LBA48); 1041 } 1042 1043 #define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff) 1044 #define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16) 1045 #define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff) 1046 #define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf) 1047 1048 #endif /* __LINUX_ATA_H__ */ 1049