LXR linux/drivers/scsi/ufs/ufs.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * Universal Flash Storage Host controller driver
   4 * Copyright (C) 2011-2013 Samsung India Software Operations
   5 *
   6 * Authors:
   7 *      Santosh Yaraganavi <santosh.sy@samsung.com>
   8 *      Vinayak Holikatti <h.vinayak@samsung.com>
   9 */
  10
  11#ifndef _UFS_H
  12#define _UFS_H
  13
  14#include <linux/mutex.h>
  15#include <linux/types.h>
  16#include <uapi/scsi/scsi_bsg_ufs.h>
  17
  18#define GENERAL_UPIU_REQUEST_SIZE (sizeof(struct utp_upiu_req))
  19#define QUERY_DESC_MAX_SIZE       255
  20#define QUERY_DESC_MIN_SIZE       2
  21#define QUERY_DESC_HDR_SIZE       2
  22#define QUERY_OSF_SIZE            (GENERAL_UPIU_REQUEST_SIZE - \
  23                                        (sizeof(struct utp_upiu_header)))
  24#define UFS_SENSE_SIZE  18
  25
  26#define UPIU_HEADER_DWORD(byte3, byte2, byte1, byte0)\
  27                        cpu_to_be32((byte3 << 24) | (byte2 << 16) |\
  28                         (byte1 << 8) | (byte0))
  29/*
  30 * UFS device may have standard LUs and LUN id could be from 0x00 to
  31 * 0x7F. Standard LUs use "Peripheral Device Addressing Format".
  32 * UFS device may also have the Well Known LUs (also referred as W-LU)
  33 * which again could be from 0x00 to 0x7F. For W-LUs, device only use
  34 * the "Extended Addressing Format" which means the W-LUNs would be
  35 * from 0xc100 (SCSI_W_LUN_BASE) onwards.
  36 * This means max. LUN number reported from UFS device could be 0xC17F.
  37 */
  38#define UFS_UPIU_MAX_UNIT_NUM_ID        0x7F
  39#define UFS_MAX_LUNS            (SCSI_W_LUN_BASE + UFS_UPIU_MAX_UNIT_NUM_ID)
  40#define UFS_UPIU_WLUN_ID        (1 << 7)
  41#define UFS_RPMB_UNIT           0xC4
  42
  43/* WriteBooster buffer is available only for the logical unit from 0 to 7 */
  44#define UFS_UPIU_MAX_WB_LUN_ID  8
  45
  46/* Well known logical unit id in LUN field of UPIU */
  47enum {
  48        UFS_UPIU_REPORT_LUNS_WLUN       = 0x81,
  49        UFS_UPIU_UFS_DEVICE_WLUN        = 0xD0,
  50        UFS_UPIU_BOOT_WLUN              = 0xB0,
  51        UFS_UPIU_RPMB_WLUN              = 0xC4,
  52};
  53
  54/*
  55 * UFS Protocol Information Unit related definitions
  56 */
  57
  58/* Task management functions */
  59enum {
  60        UFS_ABORT_TASK          = 0x01,
  61        UFS_ABORT_TASK_SET      = 0x02,
  62        UFS_CLEAR_TASK_SET      = 0x04,
  63        UFS_LOGICAL_RESET       = 0x08,
  64        UFS_QUERY_TASK          = 0x80,
  65        UFS_QUERY_TASK_SET      = 0x81,
  66};
  67
  68/* UTP UPIU Transaction Codes Initiator to Target */
  69enum {
  70        UPIU_TRANSACTION_NOP_OUT        = 0x00,
  71        UPIU_TRANSACTION_COMMAND        = 0x01,
  72        UPIU_TRANSACTION_DATA_OUT       = 0x02,
  73        UPIU_TRANSACTION_TASK_REQ       = 0x04,
  74        UPIU_TRANSACTION_QUERY_REQ      = 0x16,
  75};
  76
  77/* UTP UPIU Transaction Codes Target to Initiator */
  78enum {
  79        UPIU_TRANSACTION_NOP_IN         = 0x20,
  80        UPIU_TRANSACTION_RESPONSE       = 0x21,
  81        UPIU_TRANSACTION_DATA_IN        = 0x22,
  82        UPIU_TRANSACTION_TASK_RSP       = 0x24,
  83        UPIU_TRANSACTION_READY_XFER     = 0x31,
  84        UPIU_TRANSACTION_QUERY_RSP      = 0x36,
  85        UPIU_TRANSACTION_REJECT_UPIU    = 0x3F,
  86};
  87
  88/* UPIU Read/Write flags */
  89enum {
  90        UPIU_CMD_FLAGS_NONE     = 0x00,
  91        UPIU_CMD_FLAGS_WRITE    = 0x20,
  92        UPIU_CMD_FLAGS_READ     = 0x40,
  93};
  94
  95/* UPIU Task Attributes */
  96enum {
  97        UPIU_TASK_ATTR_SIMPLE   = 0x00,
  98        UPIU_TASK_ATTR_ORDERED  = 0x01,
  99        UPIU_TASK_ATTR_HEADQ    = 0x02,
 100        UPIU_TASK_ATTR_ACA      = 0x03,
 101};
 102
 103/* UPIU Query request function */
 104enum {
 105        UPIU_QUERY_FUNC_STANDARD_READ_REQUEST           = 0x01,
 106        UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST          = 0x81,
 107};
 108
 109/* Flag idn for Query Requests*/
 110enum flag_idn {
 111        QUERY_FLAG_IDN_FDEVICEINIT                      = 0x01,
 112        QUERY_FLAG_IDN_PERMANENT_WPE                    = 0x02,
 113        QUERY_FLAG_IDN_PWR_ON_WPE                       = 0x03,
 114        QUERY_FLAG_IDN_BKOPS_EN                         = 0x04,
 115        QUERY_FLAG_IDN_LIFE_SPAN_MODE_ENABLE            = 0x05,
 116        QUERY_FLAG_IDN_PURGE_ENABLE                     = 0x06,
 117        QUERY_FLAG_IDN_RESERVED2                        = 0x07,
 118        QUERY_FLAG_IDN_FPHYRESOURCEREMOVAL              = 0x08,
 119        QUERY_FLAG_IDN_BUSY_RTC                         = 0x09,
 120        QUERY_FLAG_IDN_RESERVED3                        = 0x0A,
 121        QUERY_FLAG_IDN_PERMANENTLY_DISABLE_FW_UPDATE    = 0x0B,
 122        QUERY_FLAG_IDN_WB_EN                            = 0x0E,
 123        QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN                 = 0x0F,
 124        QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8     = 0x10,
 125};
 126
 127/* Attribute idn for Query requests */
 128enum attr_idn {
 129        QUERY_ATTR_IDN_BOOT_LU_EN               = 0x00,
 130        QUERY_ATTR_IDN_RESERVED                 = 0x01,
 131        QUERY_ATTR_IDN_POWER_MODE               = 0x02,
 132        QUERY_ATTR_IDN_ACTIVE_ICC_LVL           = 0x03,
 133        QUERY_ATTR_IDN_OOO_DATA_EN              = 0x04,
 134        QUERY_ATTR_IDN_BKOPS_STATUS             = 0x05,
 135        QUERY_ATTR_IDN_PURGE_STATUS             = 0x06,
 136        QUERY_ATTR_IDN_MAX_DATA_IN              = 0x07,
 137        QUERY_ATTR_IDN_MAX_DATA_OUT             = 0x08,
 138        QUERY_ATTR_IDN_DYN_CAP_NEEDED           = 0x09,
 139        QUERY_ATTR_IDN_REF_CLK_FREQ             = 0x0A,
 140        QUERY_ATTR_IDN_CONF_DESC_LOCK           = 0x0B,
 141        QUERY_ATTR_IDN_MAX_NUM_OF_RTT           = 0x0C,
 142        QUERY_ATTR_IDN_EE_CONTROL               = 0x0D,
 143        QUERY_ATTR_IDN_EE_STATUS                = 0x0E,
 144        QUERY_ATTR_IDN_SECONDS_PASSED           = 0x0F,
 145        QUERY_ATTR_IDN_CNTX_CONF                = 0x10,
 146        QUERY_ATTR_IDN_CORR_PRG_BLK_NUM         = 0x11,
 147        QUERY_ATTR_IDN_RESERVED2                = 0x12,
 148        QUERY_ATTR_IDN_RESERVED3                = 0x13,
 149        QUERY_ATTR_IDN_FFU_STATUS               = 0x14,
 150        QUERY_ATTR_IDN_PSA_STATE                = 0x15,
 151        QUERY_ATTR_IDN_PSA_DATA_SIZE            = 0x16,
 152        QUERY_ATTR_IDN_REF_CLK_GATING_WAIT_TIME = 0x17,
 153        QUERY_ATTR_IDN_WB_FLUSH_STATUS          = 0x1C,
 154        QUERY_ATTR_IDN_AVAIL_WB_BUFF_SIZE       = 0x1D,
 155        QUERY_ATTR_IDN_WB_BUFF_LIFE_TIME_EST    = 0x1E,
 156        QUERY_ATTR_IDN_CURR_WB_BUFF_SIZE        = 0x1F,
 157};
 158
 159/* Descriptor idn for Query requests */
 160enum desc_idn {
 161        QUERY_DESC_IDN_DEVICE           = 0x0,
 162        QUERY_DESC_IDN_CONFIGURATION    = 0x1,
 163        QUERY_DESC_IDN_UNIT             = 0x2,
 164        QUERY_DESC_IDN_RFU_0            = 0x3,
 165        QUERY_DESC_IDN_INTERCONNECT     = 0x4,
 166        QUERY_DESC_IDN_STRING           = 0x5,
 167        QUERY_DESC_IDN_RFU_1            = 0x6,
 168        QUERY_DESC_IDN_GEOMETRY         = 0x7,
 169        QUERY_DESC_IDN_POWER            = 0x8,
 170        QUERY_DESC_IDN_HEALTH           = 0x9,
 171        QUERY_DESC_IDN_MAX,
 172};
 173
 174enum desc_header_offset {
 175        QUERY_DESC_LENGTH_OFFSET        = 0x00,
 176        QUERY_DESC_DESC_TYPE_OFFSET     = 0x01,
 177};
 178
 179/* Unit descriptor parameters offsets in bytes*/
 180enum unit_desc_param {
 181        UNIT_DESC_PARAM_LEN                     = 0x0,
 182        UNIT_DESC_PARAM_TYPE                    = 0x1,
 183        UNIT_DESC_PARAM_UNIT_INDEX              = 0x2,
 184        UNIT_DESC_PARAM_LU_ENABLE               = 0x3,
 185        UNIT_DESC_PARAM_BOOT_LUN_ID             = 0x4,
 186        UNIT_DESC_PARAM_LU_WR_PROTECT           = 0x5,
 187        UNIT_DESC_PARAM_LU_Q_DEPTH              = 0x6,
 188        UNIT_DESC_PARAM_PSA_SENSITIVE           = 0x7,
 189        UNIT_DESC_PARAM_MEM_TYPE                = 0x8,
 190        UNIT_DESC_PARAM_DATA_RELIABILITY        = 0x9,
 191        UNIT_DESC_PARAM_LOGICAL_BLK_SIZE        = 0xA,
 192        UNIT_DESC_PARAM_LOGICAL_BLK_COUNT       = 0xB,
 193        UNIT_DESC_PARAM_ERASE_BLK_SIZE          = 0x13,
 194        UNIT_DESC_PARAM_PROVISIONING_TYPE       = 0x17,
 195        UNIT_DESC_PARAM_PHY_MEM_RSRC_CNT        = 0x18,
 196        UNIT_DESC_PARAM_CTX_CAPABILITIES        = 0x20,
 197        UNIT_DESC_PARAM_LARGE_UNIT_SIZE_M1      = 0x22,
 198        UNIT_DESC_PARAM_WB_BUF_ALLOC_UNITS      = 0x29,
 199};
 200
 201/* Device descriptor parameters offsets in bytes*/
 202enum device_desc_param {
 203        DEVICE_DESC_PARAM_LEN                   = 0x0,
 204        DEVICE_DESC_PARAM_TYPE                  = 0x1,
 205        DEVICE_DESC_PARAM_DEVICE_TYPE           = 0x2,
 206        DEVICE_DESC_PARAM_DEVICE_CLASS          = 0x3,
 207        DEVICE_DESC_PARAM_DEVICE_SUB_CLASS      = 0x4,
 208        DEVICE_DESC_PARAM_PRTCL                 = 0x5,
 209        DEVICE_DESC_PARAM_NUM_LU                = 0x6,
 210        DEVICE_DESC_PARAM_NUM_WLU               = 0x7,
 211        DEVICE_DESC_PARAM_BOOT_ENBL             = 0x8,
 212        DEVICE_DESC_PARAM_DESC_ACCSS_ENBL       = 0x9,
 213        DEVICE_DESC_PARAM_INIT_PWR_MODE         = 0xA,
 214        DEVICE_DESC_PARAM_HIGH_PR_LUN           = 0xB,
 215        DEVICE_DESC_PARAM_SEC_RMV_TYPE          = 0xC,
 216        DEVICE_DESC_PARAM_SEC_LU                = 0xD,
 217        DEVICE_DESC_PARAM_BKOP_TERM_LT          = 0xE,
 218        DEVICE_DESC_PARAM_ACTVE_ICC_LVL         = 0xF,
 219        DEVICE_DESC_PARAM_SPEC_VER              = 0x10,
 220        DEVICE_DESC_PARAM_MANF_DATE             = 0x12,
 221        DEVICE_DESC_PARAM_MANF_NAME             = 0x14,
 222        DEVICE_DESC_PARAM_PRDCT_NAME            = 0x15,
 223        DEVICE_DESC_PARAM_SN                    = 0x16,
 224        DEVICE_DESC_PARAM_OEM_ID                = 0x17,
 225        DEVICE_DESC_PARAM_MANF_ID               = 0x18,
 226        DEVICE_DESC_PARAM_UD_OFFSET             = 0x1A,
 227        DEVICE_DESC_PARAM_UD_LEN                = 0x1B,
 228        DEVICE_DESC_PARAM_RTT_CAP               = 0x1C,
 229        DEVICE_DESC_PARAM_FRQ_RTC               = 0x1D,
 230        DEVICE_DESC_PARAM_UFS_FEAT              = 0x1F,
 231        DEVICE_DESC_PARAM_FFU_TMT               = 0x20,
 232        DEVICE_DESC_PARAM_Q_DPTH                = 0x21,
 233        DEVICE_DESC_PARAM_DEV_VER               = 0x22,
 234        DEVICE_DESC_PARAM_NUM_SEC_WPA           = 0x24,
 235        DEVICE_DESC_PARAM_PSA_MAX_DATA          = 0x25,
 236        DEVICE_DESC_PARAM_PSA_TMT               = 0x29,
 237        DEVICE_DESC_PARAM_PRDCT_REV             = 0x2A,
 238        DEVICE_DESC_PARAM_EXT_UFS_FEATURE_SUP   = 0x4F,
 239        DEVICE_DESC_PARAM_WB_PRESRV_USRSPC_EN   = 0x53,
 240        DEVICE_DESC_PARAM_WB_TYPE               = 0x54,
 241        DEVICE_DESC_PARAM_WB_SHARED_ALLOC_UNITS = 0x55,
 242};
 243
 244/* Interconnect descriptor parameters offsets in bytes*/
 245enum interconnect_desc_param {
 246        INTERCONNECT_DESC_PARAM_LEN             = 0x0,
 247        INTERCONNECT_DESC_PARAM_TYPE            = 0x1,
 248        INTERCONNECT_DESC_PARAM_UNIPRO_VER      = 0x2,
 249        INTERCONNECT_DESC_PARAM_MPHY_VER        = 0x4,
 250};
 251
 252/* Geometry descriptor parameters offsets in bytes*/
 253enum geometry_desc_param {
 254        GEOMETRY_DESC_PARAM_LEN                 = 0x0,
 255        GEOMETRY_DESC_PARAM_TYPE                = 0x1,
 256        GEOMETRY_DESC_PARAM_DEV_CAP             = 0x4,
 257        GEOMETRY_DESC_PARAM_MAX_NUM_LUN         = 0xC,
 258        GEOMETRY_DESC_PARAM_SEG_SIZE            = 0xD,
 259        GEOMETRY_DESC_PARAM_ALLOC_UNIT_SIZE     = 0x11,
 260        GEOMETRY_DESC_PARAM_MIN_BLK_SIZE        = 0x12,
 261        GEOMETRY_DESC_PARAM_OPT_RD_BLK_SIZE     = 0x13,
 262        GEOMETRY_DESC_PARAM_OPT_WR_BLK_SIZE     = 0x14,
 263        GEOMETRY_DESC_PARAM_MAX_IN_BUF_SIZE     = 0x15,
 264        GEOMETRY_DESC_PARAM_MAX_OUT_BUF_SIZE    = 0x16,
 265        GEOMETRY_DESC_PARAM_RPMB_RW_SIZE        = 0x17,
 266        GEOMETRY_DESC_PARAM_DYN_CAP_RSRC_PLC    = 0x18,
 267        GEOMETRY_DESC_PARAM_DATA_ORDER          = 0x19,
 268        GEOMETRY_DESC_PARAM_MAX_NUM_CTX         = 0x1A,
 269        GEOMETRY_DESC_PARAM_TAG_UNIT_SIZE       = 0x1B,
 270        GEOMETRY_DESC_PARAM_TAG_RSRC_SIZE       = 0x1C,
 271        GEOMETRY_DESC_PARAM_SEC_RM_TYPES        = 0x1D,
 272        GEOMETRY_DESC_PARAM_MEM_TYPES           = 0x1E,
 273        GEOMETRY_DESC_PARAM_SCM_MAX_NUM_UNITS   = 0x20,
 274        GEOMETRY_DESC_PARAM_SCM_CAP_ADJ_FCTR    = 0x24,
 275        GEOMETRY_DESC_PARAM_NPM_MAX_NUM_UNITS   = 0x26,
 276        GEOMETRY_DESC_PARAM_NPM_CAP_ADJ_FCTR    = 0x2A,
 277        GEOMETRY_DESC_PARAM_ENM1_MAX_NUM_UNITS  = 0x2C,
 278        GEOMETRY_DESC_PARAM_ENM1_CAP_ADJ_FCTR   = 0x30,
 279        GEOMETRY_DESC_PARAM_ENM2_MAX_NUM_UNITS  = 0x32,
 280        GEOMETRY_DESC_PARAM_ENM2_CAP_ADJ_FCTR   = 0x36,
 281        GEOMETRY_DESC_PARAM_ENM3_MAX_NUM_UNITS  = 0x38,
 282        GEOMETRY_DESC_PARAM_ENM3_CAP_ADJ_FCTR   = 0x3C,
 283        GEOMETRY_DESC_PARAM_ENM4_MAX_NUM_UNITS  = 0x3E,
 284        GEOMETRY_DESC_PARAM_ENM4_CAP_ADJ_FCTR   = 0x42,
 285        GEOMETRY_DESC_PARAM_OPT_LOG_BLK_SIZE    = 0x44,
 286        GEOMETRY_DESC_PARAM_WB_MAX_ALLOC_UNITS  = 0x4F,
 287        GEOMETRY_DESC_PARAM_WB_MAX_WB_LUNS      = 0x53,
 288        GEOMETRY_DESC_PARAM_WB_BUFF_CAP_ADJ     = 0x54,
 289        GEOMETRY_DESC_PARAM_WB_SUP_RED_TYPE     = 0x55,
 290        GEOMETRY_DESC_PARAM_WB_SUP_WB_TYPE      = 0x56,
 291};
 292
 293/* Health descriptor parameters offsets in bytes*/
 294enum health_desc_param {
 295        HEALTH_DESC_PARAM_LEN                   = 0x0,
 296        HEALTH_DESC_PARAM_TYPE                  = 0x1,
 297        HEALTH_DESC_PARAM_EOL_INFO              = 0x2,
 298        HEALTH_DESC_PARAM_LIFE_TIME_EST_A       = 0x3,
 299        HEALTH_DESC_PARAM_LIFE_TIME_EST_B       = 0x4,
 300};
 301
 302/* WriteBooster buffer mode */
 303enum {
 304        WB_BUF_MODE_LU_DEDICATED        = 0x0,
 305        WB_BUF_MODE_SHARED              = 0x1,
 306};
 307
 308/*
 309 * Logical Unit Write Protect
 310 * 00h: LU not write protected
 311 * 01h: LU write protected when fPowerOnWPEn =1
 312 * 02h: LU permanently write protected when fPermanentWPEn =1
 313 */
 314enum ufs_lu_wp_type {
 315        UFS_LU_NO_WP            = 0x00,
 316        UFS_LU_POWER_ON_WP      = 0x01,
 317        UFS_LU_PERM_WP          = 0x02,
 318};
 319
 320/* bActiveICCLevel parameter current units */
 321enum {
 322        UFSHCD_NANO_AMP         = 0,
 323        UFSHCD_MICRO_AMP        = 1,
 324        UFSHCD_MILI_AMP         = 2,
 325        UFSHCD_AMP              = 3,
 326};
 327
 328/* Possible values for dExtendedUFSFeaturesSupport */
 329enum {
 330        UFS_DEV_WRITE_BOOSTER_SUP       = BIT(8),
 331};
 332
 333#define POWER_DESC_MAX_ACTV_ICC_LVLS            16
 334
 335/* Attribute  bActiveICCLevel parameter bit masks definitions */
 336#define ATTR_ICC_LVL_UNIT_OFFSET        14
 337#define ATTR_ICC_LVL_UNIT_MASK          (0x3 << ATTR_ICC_LVL_UNIT_OFFSET)
 338#define ATTR_ICC_LVL_VALUE_MASK         0x3FF
 339
 340/* Power descriptor parameters offsets in bytes */
 341enum power_desc_param_offset {
 342        PWR_DESC_LEN                    = 0x0,
 343        PWR_DESC_TYPE                   = 0x1,
 344        PWR_DESC_ACTIVE_LVLS_VCC_0      = 0x2,
 345        PWR_DESC_ACTIVE_LVLS_VCCQ_0     = 0x22,
 346        PWR_DESC_ACTIVE_LVLS_VCCQ2_0    = 0x42,
 347};
 348
 349/* Exception event mask values */
 350enum {
 351        MASK_EE_STATUS                  = 0xFFFF,
 352        MASK_EE_DYNCAP_EVENT            = BIT(0),
 353        MASK_EE_SYSPOOL_EVENT           = BIT(1),
 354        MASK_EE_URGENT_BKOPS            = BIT(2),
 355        MASK_EE_TOO_HIGH_TEMP           = BIT(3),
 356        MASK_EE_TOO_LOW_TEMP            = BIT(4),
 357        MASK_EE_WRITEBOOSTER_EVENT      = BIT(5),
 358        MASK_EE_PERFORMANCE_THROTTLING  = BIT(6),
 359};
 360
 361/* Background operation status */
 362enum bkops_status {
 363        BKOPS_STATUS_NO_OP               = 0x0,
 364        BKOPS_STATUS_NON_CRITICAL        = 0x1,
 365        BKOPS_STATUS_PERF_IMPACT         = 0x2,
 366        BKOPS_STATUS_CRITICAL            = 0x3,
 367        BKOPS_STATUS_MAX                 = BKOPS_STATUS_CRITICAL,
 368};
 369
 370/* UTP QUERY Transaction Specific Fields OpCode */
 371enum query_opcode {
 372        UPIU_QUERY_OPCODE_NOP           = 0x0,
 373        UPIU_QUERY_OPCODE_READ_DESC     = 0x1,
 374        UPIU_QUERY_OPCODE_WRITE_DESC    = 0x2,
 375        UPIU_QUERY_OPCODE_READ_ATTR     = 0x3,
 376        UPIU_QUERY_OPCODE_WRITE_ATTR    = 0x4,
 377        UPIU_QUERY_OPCODE_READ_FLAG     = 0x5,
 378        UPIU_QUERY_OPCODE_SET_FLAG      = 0x6,
 379        UPIU_QUERY_OPCODE_CLEAR_FLAG    = 0x7,
 380        UPIU_QUERY_OPCODE_TOGGLE_FLAG   = 0x8,
 381};
 382
 383/* bRefClkFreq attribute values */
 384enum ufs_ref_clk_freq {
 385        REF_CLK_FREQ_19_2_MHZ   = 0,
 386        REF_CLK_FREQ_26_MHZ     = 1,
 387        REF_CLK_FREQ_38_4_MHZ   = 2,
 388        REF_CLK_FREQ_52_MHZ     = 3,
 389        REF_CLK_FREQ_INVAL      = -1,
 390};
 391
 392struct ufs_ref_clk {
 393        unsigned long freq_hz;
 394        enum ufs_ref_clk_freq val;
 395};
 396
 397/* Query response result code */
 398enum {
 399        QUERY_RESULT_SUCCESS                    = 0x00,
 400        QUERY_RESULT_NOT_READABLE               = 0xF6,
 401        QUERY_RESULT_NOT_WRITEABLE              = 0xF7,
 402        QUERY_RESULT_ALREADY_WRITTEN            = 0xF8,
 403        QUERY_RESULT_INVALID_LENGTH             = 0xF9,
 404        QUERY_RESULT_INVALID_VALUE              = 0xFA,
 405        QUERY_RESULT_INVALID_SELECTOR           = 0xFB,
 406        QUERY_RESULT_INVALID_INDEX              = 0xFC,
 407        QUERY_RESULT_INVALID_IDN                = 0xFD,
 408        QUERY_RESULT_INVALID_OPCODE             = 0xFE,
 409        QUERY_RESULT_GENERAL_FAILURE            = 0xFF,
 410};
 411
 412/* UTP Transfer Request Command Type (CT) */
 413enum {
 414        UPIU_COMMAND_SET_TYPE_SCSI      = 0x0,
 415        UPIU_COMMAND_SET_TYPE_UFS       = 0x1,
 416        UPIU_COMMAND_SET_TYPE_QUERY     = 0x2,
 417};
 418
 419/* UTP Transfer Request Command Offset */
 420#define UPIU_COMMAND_TYPE_OFFSET        28
 421
 422/* Offset of the response code in the UPIU header */
 423#define UPIU_RSP_CODE_OFFSET            8
 424
 425enum {
 426        MASK_SCSI_STATUS                = 0xFF,
 427        MASK_TASK_RESPONSE              = 0xFF00,
 428        MASK_RSP_UPIU_RESULT            = 0xFFFF,
 429        MASK_QUERY_DATA_SEG_LEN         = 0xFFFF,
 430        MASK_RSP_UPIU_DATA_SEG_LEN      = 0xFFFF,
 431        MASK_RSP_EXCEPTION_EVENT        = 0x10000,
 432        MASK_TM_SERVICE_RESP            = 0xFF,
 433        MASK_TM_FUNC                    = 0xFF,
 434};
 435
 436/* Task management service response */
 437enum {
 438        UPIU_TASK_MANAGEMENT_FUNC_COMPL         = 0x00,
 439        UPIU_TASK_MANAGEMENT_FUNC_NOT_SUPPORTED = 0x04,
 440        UPIU_TASK_MANAGEMENT_FUNC_SUCCEEDED     = 0x08,
 441        UPIU_TASK_MANAGEMENT_FUNC_FAILED        = 0x05,
 442        UPIU_INCORRECT_LOGICAL_UNIT_NO          = 0x09,
 443};
 444
 445/* UFS device power modes */
 446enum ufs_dev_pwr_mode {
 447        UFS_ACTIVE_PWR_MODE     = 1,
 448        UFS_SLEEP_PWR_MODE      = 2,
 449        UFS_POWERDOWN_PWR_MODE  = 3,
 450        UFS_DEEPSLEEP_PWR_MODE  = 4,
 451};
 452
 453#define UFS_WB_BUF_REMAIN_PERCENT(val) ((val) / 10)
 454
 455/**
 456 * struct utp_cmd_rsp - Response UPIU structure
 457 * @residual_transfer_count: Residual transfer count DW-3
 458 * @reserved: Reserved double words DW-4 to DW-7
 459 * @sense_data_len: Sense data length DW-8 U16
 460 * @sense_data: Sense data field DW-8 to DW-12
 461 */
 462struct utp_cmd_rsp {
 463        __be32 residual_transfer_count;
 464        __be32 reserved[4];
 465        __be16 sense_data_len;
 466        u8 sense_data[UFS_SENSE_SIZE];
 467};
 468
 469/**
 470 * struct utp_upiu_rsp - general upiu response structure
 471 * @header: UPIU header structure DW-0 to DW-2
 472 * @sr: fields structure for scsi command DW-3 to DW-12
 473 * @qr: fields structure for query request DW-3 to DW-7
 474 */
 475struct utp_upiu_rsp {
 476        struct utp_upiu_header header;
 477        union {
 478                struct utp_cmd_rsp sr;
 479                struct utp_upiu_query qr;
 480        };
 481};
 482
 483/**
 484 * struct ufs_query_req - parameters for building a query request
 485 * @query_func: UPIU header query function
 486 * @upiu_req: the query request data
 487 */
 488struct ufs_query_req {
 489        u8 query_func;
 490        struct utp_upiu_query upiu_req;
 491};
 492
 493/**
 494 * struct ufs_query_resp - UPIU QUERY
 495 * @response: device response code
 496 * @upiu_res: query response data
 497 */
 498struct ufs_query_res {
 499        u8 response;
 500        struct utp_upiu_query upiu_res;
 501};
 502
 503#define UFS_VREG_VCC_MIN_UV        2700000 /* uV */
 504#define UFS_VREG_VCC_MAX_UV        3600000 /* uV */
 505#define UFS_VREG_VCC_1P8_MIN_UV    1700000 /* uV */
 506#define UFS_VREG_VCC_1P8_MAX_UV    1950000 /* uV */
 507#define UFS_VREG_VCCQ_MIN_UV       1140000 /* uV */
 508#define UFS_VREG_VCCQ_MAX_UV       1260000 /* uV */
 509#define UFS_VREG_VCCQ2_MIN_UV      1700000 /* uV */
 510#define UFS_VREG_VCCQ2_MAX_UV      1950000 /* uV */
 511
 512/*
 513 * VCCQ & VCCQ2 current requirement when UFS device is in sleep state
 514 * and link is in Hibern8 state.
 515 */
 516#define UFS_VREG_LPM_LOAD_UA    1000 /* uA */
 517
 518struct ufs_vreg {
 519        struct regulator *reg;
 520        const char *name;
 521        bool always_on;
 522        bool enabled;
 523        int min_uV;
 524        int max_uV;
 525        int max_uA;
 526};
 527
 528struct ufs_vreg_info {
 529        struct ufs_vreg *vcc;
 530        struct ufs_vreg *vccq;
 531        struct ufs_vreg *vccq2;
 532        struct ufs_vreg *vdd_hba;
 533};
 534
 535struct ufs_dev_info {
 536        bool    f_power_on_wp_en;
 537        /* Keeps information if any of the LU is power on write protected */
 538        bool    is_lu_power_on_wp;
 539        /* Maximum number of general LU supported by the UFS device */
 540        u8      max_lu_supported;
 541        u16     wmanufacturerid;
 542        /*UFS device Product Name */
 543        u8      *model;
 544        u16     wspecversion;
 545        u32     clk_gating_wait_us;
 546
 547        /* UFS WB related flags */
 548        bool    wb_enabled;
 549        bool    wb_buf_flush_enabled;
 550        u8      wb_dedicated_lu;
 551        u8      wb_buffer_type;
 552
 553        bool    b_rpm_dev_flush_capable;
 554        u8      b_presrv_uspc_en;
 555};
 556
 557/*
 558 * This enum is used in string mapping in include/trace/events/ufs.h.
 559 */
 560enum ufs_trace_str_t {
 561        UFS_CMD_SEND, UFS_CMD_COMP, UFS_DEV_COMP,
 562        UFS_QUERY_SEND, UFS_QUERY_COMP, UFS_QUERY_ERR,
 563        UFS_TM_SEND, UFS_TM_COMP, UFS_TM_ERR
 564};
 565
 566/*
 567 * Transaction Specific Fields (TSF) type in the UPIU package, this enum is
 568 * used in include/trace/events/ufs.h for UFS command trace.
 569 */
 570enum ufs_trace_tsf_t {
 571        UFS_TSF_CDB, UFS_TSF_OSF, UFS_TSF_TM_INPUT, UFS_TSF_TM_OUTPUT
 572};
 573
 574/**
 575 * ufs_is_valid_unit_desc_lun - checks if the given LUN has a unit descriptor
 576 * @dev_info: pointer of instance of struct ufs_dev_info
 577 * @lun: LU number to check
 578 * @return: true if the lun has a matching unit descriptor, false otherwise
 579 */
 580static inline bool ufs_is_valid_unit_desc_lun(struct ufs_dev_info *dev_info,
 581                u8 lun, u8 param_offset)
 582{
 583        if (!dev_info || !dev_info->max_lu_supported) {
 584                pr_err("Max General LU supported by UFS isn't initialized\n");
 585                return false;
 586        }
 587        /* WB is available only for the logical unit from 0 to 7 */
 588        if (param_offset == UNIT_DESC_PARAM_WB_BUF_ALLOC_UNITS)
 589                return lun < UFS_UPIU_MAX_WB_LUN_ID;
 590        return lun == UFS_UPIU_RPMB_WLUN || (lun < dev_info->max_lu_supported);
 591}
 592
 593#endif /* End of Header */
 594