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 #include <asm/byteorder.h> 20 21 /* defines only for the constants which don't work well as enums */ 22 #define ATA_DMA_BOUNDARY 0xffffUL 23 #define ATA_DMA_MASK 0xffffffffULL 24 25 enum { 26 /* various global constants */ 27 ATA_MAX_DEVICES = 2, /* per bus/port */ 28 ATA_MAX_PRD = 256, /* we could make these 256/256 */ 29 ATA_SECT_SIZE = 512, 30 ATA_MAX_SECTORS_128 = 128, 31 ATA_MAX_SECTORS = 256, 32 ATA_MAX_SECTORS_1024 = 1024, 33 ATA_MAX_SECTORS_LBA48 = 65535,/* avoid count to be 0000h */ 34 ATA_MAX_SECTORS_TAPE = 65535, 35 ATA_MAX_TRIM_RNUM = 64, /* 512-byte payload / (6-byte LBA + 2-byte range per entry) */ 36 37 ATA_ID_WORDS = 256, 38 ATA_ID_CONFIG = 0, 39 ATA_ID_CYLS = 1, 40 ATA_ID_HEADS = 3, 41 ATA_ID_SECTORS = 6, 42 ATA_ID_SERNO = 10, 43 ATA_ID_BUF_SIZE = 21, 44 ATA_ID_FW_REV = 23, 45 ATA_ID_PROD = 27, 46 ATA_ID_MAX_MULTSECT = 47, 47 ATA_ID_DWORD_IO = 48, /* before ATA-8 */ 48 ATA_ID_TRUSTED = 48, /* ATA-8 and later */ 49 ATA_ID_CAPABILITY = 49, 50 ATA_ID_OLD_PIO_MODES = 51, 51 ATA_ID_OLD_DMA_MODES = 52, 52 ATA_ID_FIELD_VALID = 53, 53 ATA_ID_CUR_CYLS = 54, 54 ATA_ID_CUR_HEADS = 55, 55 ATA_ID_CUR_SECTORS = 56, 56 ATA_ID_MULTSECT = 59, 57 ATA_ID_LBA_CAPACITY = 60, 58 ATA_ID_SWDMA_MODES = 62, 59 ATA_ID_MWDMA_MODES = 63, 60 ATA_ID_PIO_MODES = 64, 61 ATA_ID_EIDE_DMA_MIN = 65, 62 ATA_ID_EIDE_DMA_TIME = 66, 63 ATA_ID_EIDE_PIO = 67, 64 ATA_ID_EIDE_PIO_IORDY = 68, 65 ATA_ID_ADDITIONAL_SUPP = 69, 66 ATA_ID_QUEUE_DEPTH = 75, 67 ATA_ID_SATA_CAPABILITY = 76, 68 ATA_ID_SATA_CAPABILITY_2 = 77, 69 ATA_ID_FEATURE_SUPP = 78, 70 ATA_ID_MAJOR_VER = 80, 71 ATA_ID_COMMAND_SET_1 = 82, 72 ATA_ID_COMMAND_SET_2 = 83, 73 ATA_ID_CFSSE = 84, 74 ATA_ID_CFS_ENABLE_1 = 85, 75 ATA_ID_CFS_ENABLE_2 = 86, 76 ATA_ID_CSF_DEFAULT = 87, 77 ATA_ID_UDMA_MODES = 88, 78 ATA_ID_HW_CONFIG = 93, 79 ATA_ID_SPG = 98, 80 ATA_ID_LBA_CAPACITY_2 = 100, 81 ATA_ID_SECTOR_SIZE = 106, 82 ATA_ID_WWN = 108, 83 ATA_ID_LOGICAL_SECTOR_SIZE = 117, /* and 118 */ 84 ATA_ID_COMMAND_SET_3 = 119, 85 ATA_ID_COMMAND_SET_4 = 120, 86 ATA_ID_LAST_LUN = 126, 87 ATA_ID_DLF = 128, 88 ATA_ID_CSFO = 129, 89 ATA_ID_CFA_POWER = 160, 90 ATA_ID_CFA_KEY_MGMT = 162, 91 ATA_ID_CFA_MODES = 163, 92 ATA_ID_DATA_SET_MGMT = 169, 93 ATA_ID_SCT_CMD_XPORT = 206, 94 ATA_ID_ROT_SPEED = 217, 95 ATA_ID_PIO4 = (1 << 1), 96 97 ATA_ID_SERNO_LEN = 20, 98 ATA_ID_FW_REV_LEN = 8, 99 ATA_ID_PROD_LEN = 40, 100 ATA_ID_WWN_LEN = 8, 101 102 ATA_PCI_CTL_OFS = 2, 103 104 ATA_PIO0 = (1 << 0), 105 ATA_PIO1 = ATA_PIO0 | (1 << 1), 106 ATA_PIO2 = ATA_PIO1 | (1 << 2), 107 ATA_PIO3 = ATA_PIO2 | (1 << 3), 108 ATA_PIO4 = ATA_PIO3 | (1 << 4), 109 ATA_PIO5 = ATA_PIO4 | (1 << 5), 110 ATA_PIO6 = ATA_PIO5 | (1 << 6), 111 112 ATA_PIO4_ONLY = (1 << 4), 113 114 ATA_SWDMA0 = (1 << 0), 115 ATA_SWDMA1 = ATA_SWDMA0 | (1 << 1), 116 ATA_SWDMA2 = ATA_SWDMA1 | (1 << 2), 117 118 ATA_SWDMA2_ONLY = (1 << 2), 119 120 ATA_MWDMA0 = (1 << 0), 121 ATA_MWDMA1 = ATA_MWDMA0 | (1 << 1), 122 ATA_MWDMA2 = ATA_MWDMA1 | (1 << 2), 123 ATA_MWDMA3 = ATA_MWDMA2 | (1 << 3), 124 ATA_MWDMA4 = ATA_MWDMA3 | (1 << 4), 125 126 ATA_MWDMA12_ONLY = (1 << 1) | (1 << 2), 127 ATA_MWDMA2_ONLY = (1 << 2), 128 129 ATA_UDMA0 = (1 << 0), 130 ATA_UDMA1 = ATA_UDMA0 | (1 << 1), 131 ATA_UDMA2 = ATA_UDMA1 | (1 << 2), 132 ATA_UDMA3 = ATA_UDMA2 | (1 << 3), 133 ATA_UDMA4 = ATA_UDMA3 | (1 << 4), 134 ATA_UDMA5 = ATA_UDMA4 | (1 << 5), 135 ATA_UDMA6 = ATA_UDMA5 | (1 << 6), 136 ATA_UDMA7 = ATA_UDMA6 | (1 << 7), 137 /* ATA_UDMA7 is just for completeness... doesn't exist (yet?). */ 138 139 ATA_UDMA24_ONLY = (1 << 2) | (1 << 4), 140 141 ATA_UDMA_MASK_40C = ATA_UDMA2, /* udma0-2 */ 142 143 /* DMA-related */ 144 ATA_PRD_SZ = 8, 145 ATA_PRD_TBL_SZ = (ATA_MAX_PRD * ATA_PRD_SZ), 146 ATA_PRD_EOT = (1 << 31), /* end-of-table flag */ 147 148 ATA_DMA_TABLE_OFS = 4, 149 ATA_DMA_STATUS = 2, 150 ATA_DMA_CMD = 0, 151 ATA_DMA_WR = (1 << 3), 152 ATA_DMA_START = (1 << 0), 153 ATA_DMA_INTR = (1 << 2), 154 ATA_DMA_ERR = (1 << 1), 155 ATA_DMA_ACTIVE = (1 << 0), 156 157 /* bits in ATA command block registers */ 158 ATA_HOB = (1 << 7), /* LBA48 selector */ 159 ATA_NIEN = (1 << 1), /* disable-irq flag */ 160 ATA_LBA = (1 << 6), /* LBA28 selector */ 161 ATA_DEV1 = (1 << 4), /* Select Device 1 (slave) */ 162 ATA_DEVICE_OBS = (1 << 7) | (1 << 5), /* obs bits in dev reg */ 163 ATA_DEVCTL_OBS = (1 << 3), /* obsolete bit in devctl reg */ 164 ATA_BUSY = (1 << 7), /* BSY status bit */ 165 ATA_DRDY = (1 << 6), /* device ready */ 166 ATA_DF = (1 << 5), /* device fault */ 167 ATA_DSC = (1 << 4), /* drive seek complete */ 168 ATA_DRQ = (1 << 3), /* data request i/o */ 169 ATA_CORR = (1 << 2), /* corrected data error */ 170 ATA_SENSE = (1 << 1), /* sense code available */ 171 ATA_ERR = (1 << 0), /* have an error */ 172 ATA_SRST = (1 << 2), /* software reset */ 173 ATA_ICRC = (1 << 7), /* interface CRC error */ 174 ATA_BBK = ATA_ICRC, /* pre-EIDE: block marked bad */ 175 ATA_UNC = (1 << 6), /* uncorrectable media error */ 176 ATA_MC = (1 << 5), /* media changed */ 177 ATA_IDNF = (1 << 4), /* ID not found */ 178 ATA_MCR = (1 << 3), /* media change requested */ 179 ATA_ABORTED = (1 << 2), /* command aborted */ 180 ATA_TRK0NF = (1 << 1), /* track 0 not found */ 181 ATA_AMNF = (1 << 0), /* address mark not found */ 182 ATAPI_LFS = 0xF0, /* last failed sense */ 183 ATAPI_EOM = ATA_TRK0NF, /* end of media */ 184 ATAPI_ILI = ATA_AMNF, /* illegal length indication */ 185 ATAPI_IO = (1 << 1), 186 ATAPI_COD = (1 << 0), 187 188 /* ATA command block registers */ 189 ATA_REG_DATA = 0x00, 190 ATA_REG_ERR = 0x01, 191 ATA_REG_NSECT = 0x02, 192 ATA_REG_LBAL = 0x03, 193 ATA_REG_LBAM = 0x04, 194 ATA_REG_LBAH = 0x05, 195 ATA_REG_DEVICE = 0x06, 196 ATA_REG_STATUS = 0x07, 197 198 ATA_REG_FEATURE = ATA_REG_ERR, /* and their aliases */ 199 ATA_REG_CMD = ATA_REG_STATUS, 200 ATA_REG_BYTEL = ATA_REG_LBAM, 201 ATA_REG_BYTEH = ATA_REG_LBAH, 202 ATA_REG_DEVSEL = ATA_REG_DEVICE, 203 ATA_REG_IRQ = ATA_REG_NSECT, 204 205 /* ATA device commands */ 206 ATA_CMD_DEV_RESET = 0x08, /* ATAPI device reset */ 207 ATA_CMD_CHK_POWER = 0xE5, /* check power mode */ 208 ATA_CMD_STANDBY = 0xE2, /* place in standby power mode */ 209 ATA_CMD_IDLE = 0xE3, /* place in idle power mode */ 210 ATA_CMD_EDD = 0x90, /* execute device diagnostic */ 211 ATA_CMD_DOWNLOAD_MICRO = 0x92, 212 ATA_CMD_DOWNLOAD_MICRO_DMA = 0x93, 213 ATA_CMD_NOP = 0x00, 214 ATA_CMD_FLUSH = 0xE7, 215 ATA_CMD_FLUSH_EXT = 0xEA, 216 ATA_CMD_ID_ATA = 0xEC, 217 ATA_CMD_ID_ATAPI = 0xA1, 218 ATA_CMD_SERVICE = 0xA2, 219 ATA_CMD_READ = 0xC8, 220 ATA_CMD_READ_EXT = 0x25, 221 ATA_CMD_READ_QUEUED = 0x26, 222 ATA_CMD_READ_STREAM_EXT = 0x2B, 223 ATA_CMD_READ_STREAM_DMA_EXT = 0x2A, 224 ATA_CMD_WRITE = 0xCA, 225 ATA_CMD_WRITE_EXT = 0x35, 226 ATA_CMD_WRITE_QUEUED = 0x36, 227 ATA_CMD_WRITE_STREAM_EXT = 0x3B, 228 ATA_CMD_WRITE_STREAM_DMA_EXT = 0x3A, 229 ATA_CMD_WRITE_FUA_EXT = 0x3D, 230 ATA_CMD_WRITE_QUEUED_FUA_EXT = 0x3E, 231 ATA_CMD_FPDMA_READ = 0x60, 232 ATA_CMD_FPDMA_WRITE = 0x61, 233 ATA_CMD_NCQ_NON_DATA = 0x63, 234 ATA_CMD_FPDMA_SEND = 0x64, 235 ATA_CMD_FPDMA_RECV = 0x65, 236 ATA_CMD_PIO_READ = 0x20, 237 ATA_CMD_PIO_READ_EXT = 0x24, 238 ATA_CMD_PIO_WRITE = 0x30, 239 ATA_CMD_PIO_WRITE_EXT = 0x34, 240 ATA_CMD_READ_MULTI = 0xC4, 241 ATA_CMD_READ_MULTI_EXT = 0x29, 242 ATA_CMD_WRITE_MULTI = 0xC5, 243 ATA_CMD_WRITE_MULTI_EXT = 0x39, 244 ATA_CMD_WRITE_MULTI_FUA_EXT = 0xCE, 245 ATA_CMD_SET_FEATURES = 0xEF, 246 ATA_CMD_SET_MULTI = 0xC6, 247 ATA_CMD_PACKET = 0xA0, 248 ATA_CMD_VERIFY = 0x40, 249 ATA_CMD_VERIFY_EXT = 0x42, 250 ATA_CMD_WRITE_UNCORR_EXT = 0x45, 251 ATA_CMD_STANDBYNOW1 = 0xE0, 252 ATA_CMD_IDLEIMMEDIATE = 0xE1, 253 ATA_CMD_SLEEP = 0xE6, 254 ATA_CMD_INIT_DEV_PARAMS = 0x91, 255 ATA_CMD_READ_NATIVE_MAX = 0xF8, 256 ATA_CMD_READ_NATIVE_MAX_EXT = 0x27, 257 ATA_CMD_SET_MAX = 0xF9, 258 ATA_CMD_SET_MAX_EXT = 0x37, 259 ATA_CMD_READ_LOG_EXT = 0x2F, 260 ATA_CMD_WRITE_LOG_EXT = 0x3F, 261 ATA_CMD_READ_LOG_DMA_EXT = 0x47, 262 ATA_CMD_WRITE_LOG_DMA_EXT = 0x57, 263 ATA_CMD_TRUSTED_NONDATA = 0x5B, 264 ATA_CMD_TRUSTED_RCV = 0x5C, 265 ATA_CMD_TRUSTED_RCV_DMA = 0x5D, 266 ATA_CMD_TRUSTED_SND = 0x5E, 267 ATA_CMD_TRUSTED_SND_DMA = 0x5F, 268 ATA_CMD_PMP_READ = 0xE4, 269 ATA_CMD_PMP_READ_DMA = 0xE9, 270 ATA_CMD_PMP_WRITE = 0xE8, 271 ATA_CMD_PMP_WRITE_DMA = 0xEB, 272 ATA_CMD_CONF_OVERLAY = 0xB1, 273 ATA_CMD_SEC_SET_PASS = 0xF1, 274 ATA_CMD_SEC_UNLOCK = 0xF2, 275 ATA_CMD_SEC_ERASE_PREP = 0xF3, 276 ATA_CMD_SEC_ERASE_UNIT = 0xF4, 277 ATA_CMD_SEC_FREEZE_LOCK = 0xF5, 278 ATA_CMD_SEC_DISABLE_PASS = 0xF6, 279 ATA_CMD_CONFIG_STREAM = 0x51, 280 ATA_CMD_SMART = 0xB0, 281 ATA_CMD_MEDIA_LOCK = 0xDE, 282 ATA_CMD_MEDIA_UNLOCK = 0xDF, 283 ATA_CMD_DSM = 0x06, 284 ATA_CMD_CHK_MED_CRD_TYP = 0xD1, 285 ATA_CMD_CFA_REQ_EXT_ERR = 0x03, 286 ATA_CMD_CFA_WRITE_NE = 0x38, 287 ATA_CMD_CFA_TRANS_SECT = 0x87, 288 ATA_CMD_CFA_ERASE = 0xC0, 289 ATA_CMD_CFA_WRITE_MULT_NE = 0xCD, 290 ATA_CMD_REQ_SENSE_DATA = 0x0B, 291 ATA_CMD_SANITIZE_DEVICE = 0xB4, 292 ATA_CMD_ZAC_MGMT_IN = 0x4A, 293 ATA_CMD_ZAC_MGMT_OUT = 0x9F, 294 295 /* marked obsolete in the ATA/ATAPI-7 spec */ 296 ATA_CMD_RESTORE = 0x10, 297 298 /* Subcmds for ATA_CMD_FPDMA_RECV */ 299 ATA_SUBCMD_FPDMA_RECV_RD_LOG_DMA_EXT = 0x01, 300 ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN = 0x02, 301 302 /* Subcmds for ATA_CMD_FPDMA_SEND */ 303 ATA_SUBCMD_FPDMA_SEND_DSM = 0x00, 304 ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT = 0x02, 305 306 /* Subcmds for ATA_CMD_NCQ_NON_DATA */ 307 ATA_SUBCMD_NCQ_NON_DATA_ABORT_QUEUE = 0x00, 308 ATA_SUBCMD_NCQ_NON_DATA_SET_FEATURES = 0x05, 309 ATA_SUBCMD_NCQ_NON_DATA_ZERO_EXT = 0x06, 310 ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT = 0x07, 311 312 /* Subcmds for ATA_CMD_ZAC_MGMT_IN */ 313 ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES = 0x00, 314 315 /* Subcmds for ATA_CMD_ZAC_MGMT_OUT */ 316 ATA_SUBCMD_ZAC_MGMT_OUT_CLOSE_ZONE = 0x01, 317 ATA_SUBCMD_ZAC_MGMT_OUT_FINISH_ZONE = 0x02, 318 ATA_SUBCMD_ZAC_MGMT_OUT_OPEN_ZONE = 0x03, 319 ATA_SUBCMD_ZAC_MGMT_OUT_RESET_WRITE_POINTER = 0x04, 320 321 /* READ_LOG_EXT pages */ 322 ATA_LOG_DIRECTORY = 0x0, 323 ATA_LOG_SATA_NCQ = 0x10, 324 ATA_LOG_NCQ_NON_DATA = 0x12, 325 ATA_LOG_NCQ_SEND_RECV = 0x13, 326 ATA_LOG_IDENTIFY_DEVICE = 0x30, 327 ATA_LOG_CONCURRENT_POSITIONING_RANGES = 0x47, 328 329 /* Identify device log pages: */ 330 ATA_LOG_SECURITY = 0x06, 331 ATA_LOG_SATA_SETTINGS = 0x08, 332 ATA_LOG_ZONED_INFORMATION = 0x09, 333 334 /* Identify device SATA settings log:*/ 335 ATA_LOG_DEVSLP_OFFSET = 0x30, 336 ATA_LOG_DEVSLP_SIZE = 0x08, 337 ATA_LOG_DEVSLP_MDAT = 0x00, 338 ATA_LOG_DEVSLP_MDAT_MASK = 0x1F, 339 ATA_LOG_DEVSLP_DETO = 0x01, 340 ATA_LOG_DEVSLP_VALID = 0x07, 341 ATA_LOG_DEVSLP_VALID_MASK = 0x80, 342 ATA_LOG_NCQ_PRIO_OFFSET = 0x09, 343 344 /* NCQ send and receive log */ 345 ATA_LOG_NCQ_SEND_RECV_SUBCMDS_OFFSET = 0x00, 346 ATA_LOG_NCQ_SEND_RECV_SUBCMDS_DSM = (1 << 0), 347 ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET = 0x04, 348 ATA_LOG_NCQ_SEND_RECV_DSM_TRIM = (1 << 0), 349 ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET = 0x08, 350 ATA_LOG_NCQ_SEND_RECV_RD_LOG_SUPPORTED = (1 << 0), 351 ATA_LOG_NCQ_SEND_RECV_WR_LOG_OFFSET = 0x0C, 352 ATA_LOG_NCQ_SEND_RECV_WR_LOG_SUPPORTED = (1 << 0), 353 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OFFSET = 0x10, 354 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_OUT_SUPPORTED = (1 << 0), 355 ATA_LOG_NCQ_SEND_RECV_ZAC_MGMT_IN_SUPPORTED = (1 << 1), 356 ATA_LOG_NCQ_SEND_RECV_SIZE = 0x14, 357 358 /* NCQ Non-Data log */ 359 ATA_LOG_NCQ_NON_DATA_SUBCMDS_OFFSET = 0x00, 360 ATA_LOG_NCQ_NON_DATA_ABORT_OFFSET = 0x00, 361 ATA_LOG_NCQ_NON_DATA_ABORT_NCQ = (1 << 0), 362 ATA_LOG_NCQ_NON_DATA_ABORT_ALL = (1 << 1), 363 ATA_LOG_NCQ_NON_DATA_ABORT_STREAMING = (1 << 2), 364 ATA_LOG_NCQ_NON_DATA_ABORT_NON_STREAMING = (1 << 3), 365 ATA_LOG_NCQ_NON_DATA_ABORT_SELECTED = (1 << 4), 366 ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OFFSET = 0x1C, 367 ATA_LOG_NCQ_NON_DATA_ZAC_MGMT_OUT = (1 << 0), 368 ATA_LOG_NCQ_NON_DATA_SIZE = 0x40, 369 370 /* READ/WRITE LONG (obsolete) */ 371 ATA_CMD_READ_LONG = 0x22, 372 ATA_CMD_READ_LONG_ONCE = 0x23, 373 ATA_CMD_WRITE_LONG = 0x32, 374 ATA_CMD_WRITE_LONG_ONCE = 0x33, 375 376 /* SETFEATURES stuff */ 377 SETFEATURES_XFER = 0x03, 378 XFER_UDMA_7 = 0x47, 379 XFER_UDMA_6 = 0x46, 380 XFER_UDMA_5 = 0x45, 381 XFER_UDMA_4 = 0x44, 382 XFER_UDMA_3 = 0x43, 383 XFER_UDMA_2 = 0x42, 384 XFER_UDMA_1 = 0x41, 385 XFER_UDMA_0 = 0x40, 386 XFER_MW_DMA_4 = 0x24, /* CFA only */ 387 XFER_MW_DMA_3 = 0x23, /* CFA only */ 388 XFER_MW_DMA_2 = 0x22, 389 XFER_MW_DMA_1 = 0x21, 390 XFER_MW_DMA_0 = 0x20, 391 XFER_SW_DMA_2 = 0x12, 392 XFER_SW_DMA_1 = 0x11, 393 XFER_SW_DMA_0 = 0x10, 394 XFER_PIO_6 = 0x0E, /* CFA only */ 395 XFER_PIO_5 = 0x0D, /* CFA only */ 396 XFER_PIO_4 = 0x0C, 397 XFER_PIO_3 = 0x0B, 398 XFER_PIO_2 = 0x0A, 399 XFER_PIO_1 = 0x09, 400 XFER_PIO_0 = 0x08, 401 XFER_PIO_SLOW = 0x00, 402 403 SETFEATURES_WC_ON = 0x02, /* Enable write cache */ 404 SETFEATURES_WC_OFF = 0x82, /* Disable write cache */ 405 406 SETFEATURES_RA_ON = 0xaa, /* Enable read look-ahead */ 407 SETFEATURES_RA_OFF = 0x55, /* Disable read look-ahead */ 408 409 /* Enable/Disable Automatic Acoustic Management */ 410 SETFEATURES_AAM_ON = 0x42, 411 SETFEATURES_AAM_OFF = 0xC2, 412 413 SETFEATURES_SPINUP = 0x07, /* Spin-up drive */ 414 SETFEATURES_SPINUP_TIMEOUT = 30000, /* 30s timeout for drive spin-up from PUIS */ 415 416 SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */ 417 SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */ 418 419 /* SETFEATURE Sector counts for SATA features */ 420 SATA_FPDMA_OFFSET = 0x01, /* FPDMA non-zero buffer offsets */ 421 SATA_FPDMA_AA = 0x02, /* FPDMA Setup FIS Auto-Activate */ 422 SATA_DIPM = 0x03, /* Device Initiated Power Management */ 423 SATA_FPDMA_IN_ORDER = 0x04, /* FPDMA in-order data delivery */ 424 SATA_AN = 0x05, /* Asynchronous Notification */ 425 SATA_SSP = 0x06, /* Software Settings Preservation */ 426 SATA_DEVSLP = 0x09, /* Device Sleep */ 427 428 SETFEATURE_SENSE_DATA = 0xC3, /* Sense Data Reporting feature */ 429 430 /* feature values for SET_MAX */ 431 ATA_SET_MAX_ADDR = 0x00, 432 ATA_SET_MAX_PASSWD = 0x01, 433 ATA_SET_MAX_LOCK = 0x02, 434 ATA_SET_MAX_UNLOCK = 0x03, 435 ATA_SET_MAX_FREEZE_LOCK = 0x04, 436 ATA_SET_MAX_PASSWD_DMA = 0x05, 437 ATA_SET_MAX_UNLOCK_DMA = 0x06, 438 439 /* feature values for DEVICE CONFIGURATION OVERLAY */ 440 ATA_DCO_RESTORE = 0xC0, 441 ATA_DCO_FREEZE_LOCK = 0xC1, 442 ATA_DCO_IDENTIFY = 0xC2, 443 ATA_DCO_SET = 0xC3, 444 445 /* feature values for SMART */ 446 ATA_SMART_ENABLE = 0xD8, 447 ATA_SMART_READ_VALUES = 0xD0, 448 ATA_SMART_READ_THRESHOLDS = 0xD1, 449 450 /* feature values for Data Set Management */ 451 ATA_DSM_TRIM = 0x01, 452 453 /* password used in LBA Mid / LBA High for executing SMART commands */ 454 ATA_SMART_LBAM_PASS = 0x4F, 455 ATA_SMART_LBAH_PASS = 0xC2, 456 457 /* ATAPI stuff */ 458 ATAPI_PKT_DMA = (1 << 0), 459 ATAPI_DMADIR = (1 << 2), /* ATAPI data dir: 460 0=to device, 1=to host */ 461 ATAPI_CDB_LEN = 16, 462 463 /* PMP stuff */ 464 SATA_PMP_MAX_PORTS = 15, 465 SATA_PMP_CTRL_PORT = 15, 466 467 SATA_PMP_GSCR_DWORDS = 128, 468 SATA_PMP_GSCR_PROD_ID = 0, 469 SATA_PMP_GSCR_REV = 1, 470 SATA_PMP_GSCR_PORT_INFO = 2, 471 SATA_PMP_GSCR_ERROR = 32, 472 SATA_PMP_GSCR_ERROR_EN = 33, 473 SATA_PMP_GSCR_FEAT = 64, 474 SATA_PMP_GSCR_FEAT_EN = 96, 475 476 SATA_PMP_PSCR_STATUS = 0, 477 SATA_PMP_PSCR_ERROR = 1, 478 SATA_PMP_PSCR_CONTROL = 2, 479 480 SATA_PMP_FEAT_BIST = (1 << 0), 481 SATA_PMP_FEAT_PMREQ = (1 << 1), 482 SATA_PMP_FEAT_DYNSSC = (1 << 2), 483 SATA_PMP_FEAT_NOTIFY = (1 << 3), 484 485 /* cable types */ 486 ATA_CBL_NONE = 0, 487 ATA_CBL_PATA40 = 1, 488 ATA_CBL_PATA80 = 2, 489 ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */ 490 ATA_CBL_PATA_UNK = 4, /* don't know, maybe 80c? */ 491 ATA_CBL_PATA_IGN = 5, /* don't know, ignore cable handling */ 492 ATA_CBL_SATA = 6, 493 494 /* SATA Status and Control Registers */ 495 SCR_STATUS = 0, 496 SCR_ERROR = 1, 497 SCR_CONTROL = 2, 498 SCR_ACTIVE = 3, 499 SCR_NOTIFICATION = 4, 500 501 /* SError bits */ 502 SERR_DATA_RECOVERED = (1 << 0), /* recovered data error */ 503 SERR_COMM_RECOVERED = (1 << 1), /* recovered comm failure */ 504 SERR_DATA = (1 << 8), /* unrecovered data error */ 505 SERR_PERSISTENT = (1 << 9), /* persistent data/comm error */ 506 SERR_PROTOCOL = (1 << 10), /* protocol violation */ 507 SERR_INTERNAL = (1 << 11), /* host internal error */ 508 SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */ 509 SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */ 510 SERR_COMM_WAKE = (1 << 18), /* Comm wake */ 511 SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */ 512 SERR_DISPARITY = (1 << 20), /* Disparity */ 513 SERR_CRC = (1 << 21), /* CRC error */ 514 SERR_HANDSHAKE = (1 << 22), /* Handshake error */ 515 SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */ 516 SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */ 517 SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */ 518 SERR_DEV_XCHG = (1 << 26), /* device exchanged */ 519 }; 520 521 enum ata_prot_flags { 522 /* protocol flags */ 523 ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */ 524 ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */ 525 ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */ 526 ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */ 527 528 /* taskfile protocols */ 529 ATA_PROT_UNKNOWN = (u8)-1, 530 ATA_PROT_NODATA = 0, 531 ATA_PROT_PIO = ATA_PROT_FLAG_PIO, 532 ATA_PROT_DMA = ATA_PROT_FLAG_DMA, 533 ATA_PROT_NCQ_NODATA = ATA_PROT_FLAG_NCQ, 534 ATA_PROT_NCQ = ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ, 535 ATAPI_PROT_NODATA = ATA_PROT_FLAG_ATAPI, 536 ATAPI_PROT_PIO = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO, 537 ATAPI_PROT_DMA = ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA, 538 }; 539 540 enum ata_ioctls { 541 ATA_IOC_GET_IO32 = 0x309, /* HDIO_GET_32BIT */ 542 ATA_IOC_SET_IO32 = 0x324, /* HDIO_SET_32BIT */ 543 }; 544 545 /* core structures */ 546 547 struct ata_bmdma_prd { 548 __le32 addr; 549 __le32 flags_len; 550 }; 551 552 /* 553 * id tests 554 */ 555 #define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0) 556 #define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9)) 557 #define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (1 << 8)) 558 #define ata_id_has_ncq(id) ((id)[ATA_ID_SATA_CAPABILITY] & (1 << 8)) 559 #define ata_id_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1) 560 #define ata_id_removable(id) ((id)[ATA_ID_CONFIG] & (1 << 7)) 561 #define ata_id_has_atapi_AN(id) \ 562 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ 563 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ 564 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 5))) 565 #define ata_id_has_fpdma_aa(id) \ 566 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ 567 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ 568 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 2))) 569 #define ata_id_has_devslp(id) \ 570 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ 571 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ 572 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8))) 573 #define ata_id_has_ncq_autosense(id) \ 574 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ 575 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ 576 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 7))) 577 #define ata_id_has_dipm(id) \ 578 ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \ 579 ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \ 580 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 3))) 581 #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10)) 582 #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11)) 583 #define ata_id_u32(id,n) \ 584 (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)])) 585 #define ata_id_u64(id,n) \ 586 ( ((u64) (id)[(n) + 3] << 48) | \ 587 ((u64) (id)[(n) + 2] << 32) | \ 588 ((u64) (id)[(n) + 1] << 16) | \ 589 ((u64) (id)[(n) + 0]) ) 590 591 #define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20) 592 #define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4)) 593 594 static inline bool ata_id_has_hipm(const u16 *id) 595 { 596 u16 val = id[ATA_ID_SATA_CAPABILITY]; 597 598 if (val == 0 || val == 0xffff) 599 return false; 600 601 return val & (1 << 9); 602 } 603 604 static inline bool ata_id_has_fua(const u16 *id) 605 { 606 if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000) 607 return false; 608 return id[ATA_ID_CFSSE] & (1 << 6); 609 } 610 611 static inline bool ata_id_has_flush(const u16 *id) 612 { 613 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 614 return false; 615 return id[ATA_ID_COMMAND_SET_2] & (1 << 12); 616 } 617 618 static inline bool ata_id_flush_enabled(const u16 *id) 619 { 620 if (ata_id_has_flush(id) == 0) 621 return false; 622 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 623 return false; 624 return id[ATA_ID_CFS_ENABLE_2] & (1 << 12); 625 } 626 627 static inline bool ata_id_has_flush_ext(const u16 *id) 628 { 629 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 630 return false; 631 return id[ATA_ID_COMMAND_SET_2] & (1 << 13); 632 } 633 634 static inline bool ata_id_flush_ext_enabled(const u16 *id) 635 { 636 if (ata_id_has_flush_ext(id) == 0) 637 return false; 638 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 639 return false; 640 /* 641 * some Maxtor disks have bit 13 defined incorrectly 642 * so check bit 10 too 643 */ 644 return (id[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400; 645 } 646 647 static inline u32 ata_id_logical_sector_size(const u16 *id) 648 { 649 /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. 650 * IDENTIFY DEVICE data, word 117-118. 651 * 0xd000 ignores bit 13 (logical:physical > 1) 652 */ 653 if ((id[ATA_ID_SECTOR_SIZE] & 0xd000) == 0x5000) 654 return (((id[ATA_ID_LOGICAL_SECTOR_SIZE+1] << 16) 655 + id[ATA_ID_LOGICAL_SECTOR_SIZE]) * sizeof(u16)) ; 656 return ATA_SECT_SIZE; 657 } 658 659 static inline u8 ata_id_log2_per_physical_sector(const u16 *id) 660 { 661 /* T13/1699-D Revision 6a, Sep 6, 2008. Page 128. 662 * IDENTIFY DEVICE data, word 106. 663 * 0xe000 ignores bit 12 (logical sector > 512 bytes) 664 */ 665 if ((id[ATA_ID_SECTOR_SIZE] & 0xe000) == 0x6000) 666 return (id[ATA_ID_SECTOR_SIZE] & 0xf); 667 return 0; 668 } 669 670 /* Offset of logical sectors relative to physical sectors. 671 * 672 * If device has more than one logical sector per physical sector 673 * (aka 512 byte emulation), vendors might offset the "sector 0" address 674 * so sector 63 is "naturally aligned" - e.g. FAT partition table. 675 * This avoids Read/Mod/Write penalties when using FAT partition table 676 * and updating "well aligned" (FS perspective) physical sectors on every 677 * transaction. 678 */ 679 static inline u16 ata_id_logical_sector_offset(const u16 *id, 680 u8 log2_per_phys) 681 { 682 u16 word_209 = id[209]; 683 684 if ((log2_per_phys > 1) && (word_209 & 0xc000) == 0x4000) { 685 u16 first = word_209 & 0x3fff; 686 if (first > 0) 687 return (1 << log2_per_phys) - first; 688 } 689 return 0; 690 } 691 692 static inline bool ata_id_has_lba48(const u16 *id) 693 { 694 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 695 return false; 696 if (!ata_id_u64(id, ATA_ID_LBA_CAPACITY_2)) 697 return false; 698 return id[ATA_ID_COMMAND_SET_2] & (1 << 10); 699 } 700 701 static inline bool ata_id_lba48_enabled(const u16 *id) 702 { 703 if (ata_id_has_lba48(id) == 0) 704 return false; 705 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 706 return false; 707 return id[ATA_ID_CFS_ENABLE_2] & (1 << 10); 708 } 709 710 static inline bool ata_id_hpa_enabled(const u16 *id) 711 { 712 /* Yes children, word 83 valid bits cover word 82 data */ 713 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 714 return false; 715 /* And 87 covers 85-87 */ 716 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 717 return false; 718 /* Check command sets enabled as well as supported */ 719 if ((id[ATA_ID_CFS_ENABLE_1] & (1 << 10)) == 0) 720 return false; 721 return id[ATA_ID_COMMAND_SET_1] & (1 << 10); 722 } 723 724 static inline bool ata_id_has_wcache(const u16 *id) 725 { 726 /* Yes children, word 83 valid bits cover word 82 data */ 727 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 728 return false; 729 return id[ATA_ID_COMMAND_SET_1] & (1 << 5); 730 } 731 732 static inline bool ata_id_has_pm(const u16 *id) 733 { 734 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 735 return false; 736 return id[ATA_ID_COMMAND_SET_1] & (1 << 3); 737 } 738 739 static inline bool ata_id_rahead_enabled(const u16 *id) 740 { 741 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 742 return false; 743 return id[ATA_ID_CFS_ENABLE_1] & (1 << 6); 744 } 745 746 static inline bool ata_id_wcache_enabled(const u16 *id) 747 { 748 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000) 749 return false; 750 return id[ATA_ID_CFS_ENABLE_1] & (1 << 5); 751 } 752 753 static inline bool ata_id_has_read_log_dma_ext(const u16 *id) 754 { 755 /* Word 86 must have bit 15 set */ 756 if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) 757 return false; 758 759 /* READ LOG DMA EXT support can be signaled either from word 119 760 * or from word 120. The format is the same for both words: Bit 761 * 15 must be cleared, bit 14 set and bit 3 set. 762 */ 763 if ((id[ATA_ID_COMMAND_SET_3] & 0xC008) == 0x4008 || 764 (id[ATA_ID_COMMAND_SET_4] & 0xC008) == 0x4008) 765 return true; 766 767 return false; 768 } 769 770 static inline bool ata_id_has_sense_reporting(const u16 *id) 771 { 772 if (!(id[ATA_ID_CFS_ENABLE_2] & BIT(15))) 773 return false; 774 if ((id[ATA_ID_COMMAND_SET_3] & (BIT(15) | BIT(14))) != BIT(14)) 775 return false; 776 return id[ATA_ID_COMMAND_SET_3] & BIT(6); 777 } 778 779 static inline bool ata_id_sense_reporting_enabled(const u16 *id) 780 { 781 if (!ata_id_has_sense_reporting(id)) 782 return false; 783 /* ata_id_has_sense_reporting() == true, word 86 must have bit 15 set */ 784 if ((id[ATA_ID_COMMAND_SET_4] & (BIT(15) | BIT(14))) != BIT(14)) 785 return false; 786 return id[ATA_ID_COMMAND_SET_4] & BIT(6); 787 } 788 789 /** 790 * 791 * Word: 206 - SCT Command Transport 792 * 15:12 - Vendor Specific 793 * 11:6 - Reserved 794 * 5 - SCT Command Transport Data Tables supported 795 * 4 - SCT Command Transport Features Control supported 796 * 3 - SCT Command Transport Error Recovery Control supported 797 * 2 - SCT Command Transport Write Same supported 798 * 1 - SCT Command Transport Long Sector Access supported 799 * 0 - SCT Command Transport supported 800 */ 801 static inline bool ata_id_sct_data_tables(const u16 *id) 802 { 803 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 5) ? true : false; 804 } 805 806 static inline bool ata_id_sct_features_ctrl(const u16 *id) 807 { 808 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 4) ? true : false; 809 } 810 811 static inline bool ata_id_sct_error_recovery_ctrl(const u16 *id) 812 { 813 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 3) ? true : false; 814 } 815 816 static inline bool ata_id_sct_long_sector_access(const u16 *id) 817 { 818 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 1) ? true : false; 819 } 820 821 static inline bool ata_id_sct_supported(const u16 *id) 822 { 823 return id[ATA_ID_SCT_CMD_XPORT] & (1 << 0) ? true : false; 824 } 825 826 /** 827 * ata_id_major_version - get ATA level of drive 828 * @id: Identify data 829 * 830 * Caveats: 831 * ATA-1 considers identify optional 832 * ATA-2 introduces mandatory identify 833 * ATA-3 introduces word 80 and accurate reporting 834 * 835 * The practical impact of this is that ata_id_major_version cannot 836 * reliably report on drives below ATA3. 837 */ 838 839 static inline unsigned int ata_id_major_version(const u16 *id) 840 { 841 unsigned int mver; 842 843 if (id[ATA_ID_MAJOR_VER] == 0xFFFF) 844 return 0; 845 846 for (mver = 14; mver >= 1; mver--) 847 if (id[ATA_ID_MAJOR_VER] & (1 << mver)) 848 break; 849 return mver; 850 } 851 852 static inline bool ata_id_is_sata(const u16 *id) 853 { 854 /* 855 * See if word 93 is 0 AND drive is at least ATA-5 compatible 856 * verifying that word 80 by casting it to a signed type -- 857 * this trick allows us to filter out the reserved values of 858 * 0x0000 and 0xffff along with the earlier ATA revisions... 859 */ 860 if (id[ATA_ID_HW_CONFIG] == 0 && (short)id[ATA_ID_MAJOR_VER] >= 0x0020) 861 return true; 862 return false; 863 } 864 865 static inline bool ata_id_has_tpm(const u16 *id) 866 { 867 /* The TPM bits are only valid on ATA8 */ 868 if (ata_id_major_version(id) < 8) 869 return false; 870 if ((id[48] & 0xC000) != 0x4000) 871 return false; 872 return id[48] & (1 << 0); 873 } 874 875 static inline bool ata_id_has_dword_io(const u16 *id) 876 { 877 /* ATA 8 reuses this flag for "trusted" computing */ 878 if (ata_id_major_version(id) > 7) 879 return false; 880 return id[ATA_ID_DWORD_IO] & (1 << 0); 881 } 882 883 static inline bool ata_id_has_trusted(const u16 *id) 884 { 885 if (ata_id_major_version(id) <= 7) 886 return false; 887 return id[ATA_ID_TRUSTED] & (1 << 0); 888 } 889 890 static inline bool ata_id_has_unload(const u16 *id) 891 { 892 if (ata_id_major_version(id) >= 7 && 893 (id[ATA_ID_CFSSE] & 0xC000) == 0x4000 && 894 id[ATA_ID_CFSSE] & (1 << 13)) 895 return true; 896 return false; 897 } 898 899 static inline bool ata_id_has_wwn(const u16 *id) 900 { 901 return (id[ATA_ID_CSF_DEFAULT] & 0xC100) == 0x4100; 902 } 903 904 static inline int ata_id_form_factor(const u16 *id) 905 { 906 u16 val = id[168]; 907 908 if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) 909 return 0; 910 911 val &= 0xf; 912 913 if (val > 5) 914 return 0; 915 916 return val; 917 } 918 919 static inline int ata_id_rotation_rate(const u16 *id) 920 { 921 u16 val = id[217]; 922 923 if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) 924 return 0; 925 926 if (val > 1 && val < 0x401) 927 return 0; 928 929 return val; 930 } 931 932 static inline bool ata_id_has_ncq_send_and_recv(const u16 *id) 933 { 934 return id[ATA_ID_SATA_CAPABILITY_2] & BIT(6); 935 } 936 937 static inline bool ata_id_has_ncq_non_data(const u16 *id) 938 { 939 return id[ATA_ID_SATA_CAPABILITY_2] & BIT(5); 940 } 941 942 static inline bool ata_id_has_ncq_prio(const u16 *id) 943 { 944 return id[ATA_ID_SATA_CAPABILITY] & BIT(12); 945 } 946 947 static inline bool ata_id_has_trim(const u16 *id) 948 { 949 if (ata_id_major_version(id) >= 7 && 950 (id[ATA_ID_DATA_SET_MGMT] & 1)) 951 return true; 952 return false; 953 } 954 955 static inline bool ata_id_has_zero_after_trim(const u16 *id) 956 { 957 /* DSM supported, deterministic read, and read zero after trim set */ 958 if (ata_id_has_trim(id) && 959 (id[ATA_ID_ADDITIONAL_SUPP] & 0x4020) == 0x4020) 960 return true; 961 962 return false; 963 } 964 965 static inline bool ata_id_current_chs_valid(const u16 *id) 966 { 967 /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command 968 has not been issued to the device then the values of 969 id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */ 970 return (id[ATA_ID_FIELD_VALID] & 1) && /* Current translation valid */ 971 id[ATA_ID_CUR_CYLS] && /* cylinders in current translation */ 972 id[ATA_ID_CUR_HEADS] && /* heads in current translation */ 973 id[ATA_ID_CUR_HEADS] <= 16 && 974 id[ATA_ID_CUR_SECTORS]; /* sectors in current translation */ 975 } 976 977 static inline bool ata_id_is_cfa(const u16 *id) 978 { 979 if ((id[ATA_ID_CONFIG] == 0x848A) || /* Traditional CF */ 980 (id[ATA_ID_CONFIG] == 0x844A)) /* Delkin Devices CF */ 981 return true; 982 /* 983 * CF specs don't require specific value in the word 0 anymore and yet 984 * they forbid to report the ATA version in the word 80 and require the 985 * CFA feature set support to be indicated in the word 83 in this case. 986 * Unfortunately, some cards only follow either of this requirements, 987 * and while those that don't indicate CFA feature support need some 988 * sort of quirk list, it seems impractical for the ones that do... 989 */ 990 return (id[ATA_ID_COMMAND_SET_2] & 0xC004) == 0x4004; 991 } 992 993 static inline bool ata_id_is_ssd(const u16 *id) 994 { 995 return id[ATA_ID_ROT_SPEED] == 0x01; 996 } 997 998 static inline u8 ata_id_zoned_cap(const u16 *id) 999 { 1000 return (id[ATA_ID_ADDITIONAL_SUPP] & 0x3); 1001 } 1002 1003 static inline bool ata_id_pio_need_iordy(const u16 *id, const u8 pio) 1004 { 1005 /* CF spec. r4.1 Table 22 says no IORDY on PIO5 and PIO6. */ 1006 if (pio > 4 && ata_id_is_cfa(id)) 1007 return false; 1008 /* For PIO3 and higher it is mandatory. */ 1009 if (pio > 2) 1010 return true; 1011 /* Turn it on when possible. */ 1012 return ata_id_has_iordy(id); 1013 } 1014 1015 static inline bool ata_drive_40wire(const u16 *dev_id) 1016 { 1017 if (ata_id_is_sata(dev_id)) 1018 return false; /* SATA */ 1019 if ((dev_id[ATA_ID_HW_CONFIG] & 0xE000) == 0x6000) 1020 return false; /* 80 wire */ 1021 return true; 1022 } 1023 1024 static inline bool ata_drive_40wire_relaxed(const u16 *dev_id) 1025 { 1026 if ((dev_id[ATA_ID_HW_CONFIG] & 0x2000) == 0x2000) 1027 return false; /* 80 wire */ 1028 return true; 1029 } 1030 1031 static inline int atapi_cdb_len(const u16 *dev_id) 1032 { 1033 u16 tmp = dev_id[ATA_ID_CONFIG] & 0x3; 1034 switch (tmp) { 1035 case 0: return 12; 1036 case 1: return 16; 1037 default: return -1; 1038 } 1039 } 1040 1041 static inline int atapi_command_packet_set(const u16 *dev_id) 1042 { 1043 return (dev_id[ATA_ID_CONFIG] >> 8) & 0x1f; 1044 } 1045 1046 static inline bool atapi_id_dmadir(const u16 *dev_id) 1047 { 1048 return ata_id_major_version(dev_id) >= 7 && (dev_id[62] & 0x8000); 1049 } 1050 1051 /* 1052 * ata_id_is_lba_capacity_ok() performs a sanity check on 1053 * the claimed LBA capacity value for the device. 1054 * 1055 * Returns 1 if LBA capacity looks sensible, 0 otherwise. 1056 * 1057 * It is called only once for each device. 1058 */ 1059 static inline bool ata_id_is_lba_capacity_ok(u16 *id) 1060 { 1061 unsigned long lba_sects, chs_sects, head, tail; 1062 1063 /* No non-LBA info .. so valid! */ 1064 if (id[ATA_ID_CYLS] == 0) 1065 return true; 1066 1067 lba_sects = ata_id_u32(id, ATA_ID_LBA_CAPACITY); 1068 1069 /* 1070 * The ATA spec tells large drives to return 1071 * C/H/S = 16383/16/63 independent of their size. 1072 * Some drives can be jumpered to use 15 heads instead of 16. 1073 * Some drives can be jumpered to use 4092 cyls instead of 16383. 1074 */ 1075 if ((id[ATA_ID_CYLS] == 16383 || 1076 (id[ATA_ID_CYLS] == 4092 && id[ATA_ID_CUR_CYLS] == 16383)) && 1077 id[ATA_ID_SECTORS] == 63 && 1078 (id[ATA_ID_HEADS] == 15 || id[ATA_ID_HEADS] == 16) && 1079 (lba_sects >= 16383 * 63 * id[ATA_ID_HEADS])) 1080 return true; 1081 1082 chs_sects = id[ATA_ID_CYLS] * id[ATA_ID_HEADS] * id[ATA_ID_SECTORS]; 1083 1084 /* perform a rough sanity check on lba_sects: within 10% is OK */ 1085 if (lba_sects - chs_sects < chs_sects/10) 1086 return true; 1087 1088 /* some drives have the word order reversed */ 1089 head = (lba_sects >> 16) & 0xffff; 1090 tail = lba_sects & 0xffff; 1091 lba_sects = head | (tail << 16); 1092 1093 if (lba_sects - chs_sects < chs_sects/10) { 1094 *(__le32 *)&id[ATA_ID_LBA_CAPACITY] = __cpu_to_le32(lba_sects); 1095 return true; /* LBA capacity is (now) good */ 1096 } 1097 1098 return false; /* LBA capacity value may be bad */ 1099 } 1100 1101 static inline void ata_id_to_hd_driveid(u16 *id) 1102 { 1103 #ifdef __BIG_ENDIAN 1104 /* accessed in struct hd_driveid as 8-bit values */ 1105 id[ATA_ID_MAX_MULTSECT] = __cpu_to_le16(id[ATA_ID_MAX_MULTSECT]); 1106 id[ATA_ID_CAPABILITY] = __cpu_to_le16(id[ATA_ID_CAPABILITY]); 1107 id[ATA_ID_OLD_PIO_MODES] = __cpu_to_le16(id[ATA_ID_OLD_PIO_MODES]); 1108 id[ATA_ID_OLD_DMA_MODES] = __cpu_to_le16(id[ATA_ID_OLD_DMA_MODES]); 1109 id[ATA_ID_MULTSECT] = __cpu_to_le16(id[ATA_ID_MULTSECT]); 1110 1111 /* as 32-bit values */ 1112 *(u32 *)&id[ATA_ID_LBA_CAPACITY] = ata_id_u32(id, ATA_ID_LBA_CAPACITY); 1113 *(u32 *)&id[ATA_ID_SPG] = ata_id_u32(id, ATA_ID_SPG); 1114 1115 /* as 64-bit value */ 1116 *(u64 *)&id[ATA_ID_LBA_CAPACITY_2] = 1117 ata_id_u64(id, ATA_ID_LBA_CAPACITY_2); 1118 #endif 1119 } 1120 1121 static inline bool ata_ok(u8 status) 1122 { 1123 return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR)) 1124 == ATA_DRDY); 1125 } 1126 1127 static inline bool lba_28_ok(u64 block, u32 n_block) 1128 { 1129 /* check the ending block number: must be LESS THAN 0x0fffffff */ 1130 return ((block + n_block) < ((1 << 28) - 1)) && (n_block <= ATA_MAX_SECTORS); 1131 } 1132 1133 static inline bool lba_48_ok(u64 block, u32 n_block) 1134 { 1135 /* check the ending block number */ 1136 return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= ATA_MAX_SECTORS_LBA48); 1137 } 1138 1139 #define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff) 1140 #define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16) 1141 #define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff) 1142 #define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf) 1143 1144 #endif /* __LINUX_ATA_H__ */ 1145