include/linux/mmc/card.h

   1 /*
   2  *  linux/include/linux/mmc/card.h
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  *  Card driver specific definitions.
   9  */
  10 #ifndef LINUX_MMC_CARD_H
  11 #define LINUX_MMC_CARD_H
  12
  13 #include <linux/device.h>
  14 #include <linux/mmc/core.h>
  15 #include <linux/mod_devicetable.h>
  16
  17 struct mmc_cid {
  18         unsigned int            manfid;
  19         char                    prod_name[8];
  20         unsigned char           prv;
  21         unsigned int            serial;
  22         unsigned short          oemid;
  23         unsigned short          year;
  24         unsigned char           hwrev;
  25         unsigned char           fwrev;
  26         unsigned char           month;
  27 };
  28
  29 struct mmc_csd {
  30         unsigned char           structure;
  31         unsigned char           mmca_vsn;
  32         unsigned short          cmdclass;
  33         unsigned short          tacc_clks;
  34         unsigned int            tacc_ns;
  35         unsigned int            c_size;
  36         unsigned int            r2w_factor;
  37         unsigned int            max_dtr;
  38         unsigned int            erase_size;             /* In sectors */
  39         unsigned int            read_blkbits;
  40         unsigned int            write_blkbits;
  41         unsigned int            capacity;
  42         unsigned int            read_partial:1,
  43                                 read_misalign:1,
  44                                 write_partial:1,
  45                                 write_misalign:1,
  46                                 dsr_imp:1;
  47 };
  48
  49 struct mmc_ext_csd {
  50         u8                      rev;
  51         u8                      erase_group_def;
  52         u8                      sec_feature_support;
  53         u8                      rel_sectors;
  54         u8                      rel_param;
  55         u8                      part_config;
  56         u8                      cache_ctrl;
  57         u8                      rst_n_function;
  58         u8                      max_packed_writes;
  59         u8                      max_packed_reads;
  60         u8                      packed_event_en;
  61         unsigned int            part_time;              /* Units: ms */
  62         unsigned int            sa_timeout;             /* Units: 100ns */
  63         unsigned int            generic_cmd6_time;      /* Units: 10ms */
  64         unsigned int            power_off_longtime;     /* Units: ms */
  65         u8                      power_off_notification; /* state */
  66         unsigned int            hs_max_dtr;
  67         unsigned int            hs200_max_dtr;
  68 #define MMC_HIGH_26_MAX_DTR     26000000
  69 #define MMC_HIGH_52_MAX_DTR     52000000
  70 #define MMC_HIGH_DDR_MAX_DTR    52000000
  71 #define MMC_HS200_MAX_DTR       200000000
  72         unsigned int            sectors;
  73         unsigned int            hc_erase_size;          /* In sectors */
  74         unsigned int            hc_erase_timeout;       /* In milliseconds */
  75         unsigned int            sec_trim_mult;  /* Secure trim multiplier  */
  76         unsigned int            sec_erase_mult; /* Secure erase multiplier */
  77         unsigned int            trim_timeout;           /* In milliseconds */
  78         bool                    partition_setting_completed;    /* enable bit */
  79         unsigned long long      enhanced_area_offset;   /* Units: Byte */
  80         unsigned int            enhanced_area_size;     /* Units: KB */
  81         unsigned int            cache_size;             /* Units: KB */
  82         bool                    hpi_en;                 /* HPI enablebit */
  83         bool                    hpi;                    /* HPI support bit */
  84         unsigned int            hpi_cmd;                /* cmd used as HPI */
  85         bool                    bkops;          /* background support bit */
  86         bool                    bkops_en;       /* background enable bit */
  87         unsigned int            data_sector_size;       /* 512 bytes or 4KB */
  88         unsigned int            data_tag_unit_size;     /* DATA TAG UNIT size */
  89         unsigned int            boot_ro_lock;           /* ro lock support */
  90         bool                    boot_ro_lockable;
  91         u8                      raw_exception_status;   /* 54 */
  92         u8                      raw_partition_support;  /* 160 */
  93         u8                      raw_rpmb_size_mult;     /* 168 */
  94         u8                      raw_erased_mem_count;   /* 181 */
  95         u8                      raw_ext_csd_structure;  /* 194 */
  96         u8                      raw_card_type;          /* 196 */
  97         u8                      out_of_int_time;        /* 198 */
  98         u8                      raw_pwr_cl_52_195;      /* 200 */
  99         u8                      raw_pwr_cl_26_195;      /* 201 */
 100         u8                      raw_pwr_cl_52_360;      /* 202 */
 101         u8                      raw_pwr_cl_26_360;      /* 203 */
 102         u8                      raw_s_a_timeout;        /* 217 */
 103         u8                      raw_hc_erase_gap_size;  /* 221 */
 104         u8                      raw_erase_timeout_mult; /* 223 */
 105         u8                      raw_hc_erase_grp_size;  /* 224 */
 106         u8                      raw_sec_trim_mult;      /* 229 */
 107         u8                      raw_sec_erase_mult;     /* 230 */
 108         u8                      raw_sec_feature_support;/* 231 */
 109         u8                      raw_trim_mult;          /* 232 */
 110         u8                      raw_pwr_cl_200_195;     /* 236 */
 111         u8                      raw_pwr_cl_200_360;     /* 237 */
 112         u8                      raw_pwr_cl_ddr_52_195;  /* 238 */
 113         u8                      raw_pwr_cl_ddr_52_360;  /* 239 */
 114         u8                      raw_pwr_cl_ddr_200_360; /* 253 */
 115         u8                      raw_bkops_status;       /* 246 */
 116         u8                      raw_sectors[4];         /* 212 - 4 bytes */
 117
 118         unsigned int            feature_support;
 119 #define MMC_DISCARD_FEATURE     BIT(0)                  /* CMD38 feature */
 120 };
 121
 122 struct sd_scr {
 123         unsigned char           sda_vsn;
 124         unsigned char           sda_spec3;
 125         unsigned char           bus_widths;
 126 #define SD_SCR_BUS_WIDTH_1      (1<<0)
 127 #define SD_SCR_BUS_WIDTH_4      (1<<2)
 128         unsigned char           cmds;
 129 #define SD_SCR_CMD20_SUPPORT   (1<<0)
 130 #define SD_SCR_CMD23_SUPPORT   (1<<1)
 131 };
 132
 133 struct sd_ssr {
 134         unsigned int            au;                     /* In sectors */
 135         unsigned int            erase_timeout;          /* In milliseconds */
 136         unsigned int            erase_offset;           /* In milliseconds */
 137 };
 138
 139 struct sd_switch_caps {
 140         unsigned int            hs_max_dtr;
 141         unsigned int            uhs_max_dtr;
 142 #define HIGH_SPEED_MAX_DTR      50000000
 143 #define UHS_SDR104_MAX_DTR      208000000
 144 #define UHS_SDR50_MAX_DTR       100000000
 145 #define UHS_DDR50_MAX_DTR       50000000
 146 #define UHS_SDR25_MAX_DTR       UHS_DDR50_MAX_DTR
 147 #define UHS_SDR12_MAX_DTR       25000000
 148         unsigned int            sd3_bus_mode;
 149 #define UHS_SDR12_BUS_SPEED     0
 150 #define HIGH_SPEED_BUS_SPEED    1
 151 #define UHS_SDR25_BUS_SPEED     1
 152 #define UHS_SDR50_BUS_SPEED     2
 153 #define UHS_SDR104_BUS_SPEED    3
 154 #define UHS_DDR50_BUS_SPEED     4
 155
 156 #define SD_MODE_HIGH_SPEED      (1 << HIGH_SPEED_BUS_SPEED)
 157 #define SD_MODE_UHS_SDR12       (1 << UHS_SDR12_BUS_SPEED)
 158 #define SD_MODE_UHS_SDR25       (1 << UHS_SDR25_BUS_SPEED)
 159 #define SD_MODE_UHS_SDR50       (1 << UHS_SDR50_BUS_SPEED)
 160 #define SD_MODE_UHS_SDR104      (1 << UHS_SDR104_BUS_SPEED)
 161 #define SD_MODE_UHS_DDR50       (1 << UHS_DDR50_BUS_SPEED)
 162         unsigned int            sd3_drv_type;
 163 #define SD_DRIVER_TYPE_B        0x01
 164 #define SD_DRIVER_TYPE_A        0x02
 165 #define SD_DRIVER_TYPE_C        0x04
 166 #define SD_DRIVER_TYPE_D        0x08
 167         unsigned int            sd3_curr_limit;
 168 #define SD_SET_CURRENT_LIMIT_200        0
 169 #define SD_SET_CURRENT_LIMIT_400        1
 170 #define SD_SET_CURRENT_LIMIT_600        2
 171 #define SD_SET_CURRENT_LIMIT_800        3
 172 #define SD_SET_CURRENT_NO_CHANGE        (-1)
 173
 174 #define SD_MAX_CURRENT_200      (1 << SD_SET_CURRENT_LIMIT_200)
 175 #define SD_MAX_CURRENT_400      (1 << SD_SET_CURRENT_LIMIT_400)
 176 #define SD_MAX_CURRENT_600      (1 << SD_SET_CURRENT_LIMIT_600)
 177 #define SD_MAX_CURRENT_800      (1 << SD_SET_CURRENT_LIMIT_800)
 178 };
 179
 180 struct sdio_cccr {
 181         unsigned int            sdio_vsn;
 182         unsigned int            sd_vsn;
 183         unsigned int            multi_block:1,
 184                                 low_speed:1,
 185                                 wide_bus:1,
 186                                 high_power:1,
 187                                 high_speed:1,
 188                                 disable_cd:1;
 189 };
 190
 191 struct sdio_cis {
 192         unsigned short          vendor;
 193         unsigned short          device;
 194         unsigned short          blksize;
 195         unsigned int            max_dtr;
 196 };
 197
 198 struct mmc_host;
 199 struct mmc_ios;
 200 struct sdio_func;
 201 struct sdio_func_tuple;
 202
 203 #define SDIO_MAX_FUNCS          7
 204
 205 enum mmc_blk_status {
 206         MMC_BLK_SUCCESS = 0,
 207         MMC_BLK_PARTIAL,
 208         MMC_BLK_CMD_ERR,
 209         MMC_BLK_RETRY,
 210         MMC_BLK_ABORT,
 211         MMC_BLK_DATA_ERR,
 212         MMC_BLK_ECC_ERR,
 213         MMC_BLK_NOMEDIUM,
 214         MMC_BLK_NEW_REQUEST,
 215 };
 216
 217 /* The number of MMC physical partitions.  These consist of:
 218  * boot partitions (2), general purpose partitions (4) and
 219  * RPMB partition (1) in MMC v4.4.
 220  */
 221 #define MMC_NUM_BOOT_PARTITION  2
 222 #define MMC_NUM_GP_PARTITION    4
 223 #define MMC_NUM_PHY_PARTITION   7
 224 #define MAX_MMC_PART_NAME_LEN   20
 225
 226 /*
 227  * MMC Physical partitions
 228  */
 229 struct mmc_part {
 230         unsigned int    size;   /* partition size (in bytes) */
 231         unsigned int    part_cfg;       /* partition type */
 232         char    name[MAX_MMC_PART_NAME_LEN];
 233         bool    force_ro;       /* to make boot parts RO by default */
 234         unsigned int    area_type;
 235 #define MMC_BLK_DATA_AREA_MAIN  (1<<0)
 236 #define MMC_BLK_DATA_AREA_BOOT  (1<<1)
 237 #define MMC_BLK_DATA_AREA_GP    (1<<2)
 238 #define MMC_BLK_DATA_AREA_RPMB  (1<<3)
 239 };
 240
 241 /*
 242  * MMC device
 243  */
 244 struct mmc_card {
 245         struct mmc_host         *host;          /* the host this device belongs to */
 246         struct device           dev;            /* the device */
 247         u32                     ocr;            /* the current OCR setting */
 248         unsigned int            rca;            /* relative card address of device */
 249         unsigned int            type;           /* card type */
 250 #define MMC_TYPE_MMC            0               /* MMC card */
 251 #define MMC_TYPE_SD             1               /* SD card */
 252 #define MMC_TYPE_SDIO           2               /* SDIO card */
 253 #define MMC_TYPE_SD_COMBO       3               /* SD combo (IO+mem) card */
 254         unsigned int            state;          /* (our) card state */
 255 #define MMC_STATE_PRESENT       (1<<0)          /* present in sysfs */
 256 #define MMC_STATE_READONLY      (1<<1)          /* card is read-only */
 257 #define MMC_STATE_BLOCKADDR     (1<<2)          /* card uses block-addressing */
 258 #define MMC_CARD_SDXC           (1<<3)          /* card is SDXC */
 259 #define MMC_CARD_REMOVED        (1<<4)          /* card has been removed */
 260 #define MMC_STATE_DOING_BKOPS   (1<<5)          /* card is doing BKOPS */
 261 #define MMC_STATE_SUSPENDED     (1<<6)          /* card is suspended */
 262         unsigned int            quirks;         /* card quirks */
 263 #define MMC_QUIRK_LENIENT_FN0   (1<<0)          /* allow SDIO FN0 writes outside of the VS CCCR range */
 264 #define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1)    /* use func->cur_blksize */
 265                                                 /* for byte mode */
 266 #define MMC_QUIRK_NONSTD_SDIO   (1<<2)          /* non-standard SDIO card attached */
 267                                                 /* (missing CIA registers) */
 268 #define MMC_QUIRK_BROKEN_CLK_GATING (1<<3)      /* clock gating the sdio bus will make card fail */
 269 #define MMC_QUIRK_NONSTD_FUNC_IF (1<<4)         /* SDIO card has nonstd function interfaces */
 270 #define MMC_QUIRK_DISABLE_CD    (1<<5)          /* disconnect CD/DAT[3] resistor */
 271 #define MMC_QUIRK_INAND_CMD38   (1<<6)          /* iNAND devices have broken CMD38 */
 272 #define MMC_QUIRK_BLK_NO_CMD23  (1<<7)          /* Avoid CMD23 for regular multiblock */
 273 #define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8)   /* Avoid sending 512 bytes in */
 274                                                 /* byte mode */
 275 #define MMC_QUIRK_LONG_READ_TIME (1<<9)         /* Data read time > CSD says */
 276 #define MMC_QUIRK_SEC_ERASE_TRIM_BROKEN (1<<10) /* Skip secure for erase/trim */
 277 #define MMC_QUIRK_BROKEN_IRQ_POLLING    (1<<11) /* Polling SDIO_CCCR_INTx could create a fake interrupt */
 278
 279         unsigned int            erase_size;     /* erase size in sectors */
 280         unsigned int            erase_shift;    /* if erase unit is power 2 */
 281         unsigned int            pref_erase;     /* in sectors */
 282         u8                      erased_byte;    /* value of erased bytes */
 283
 284         u32                     raw_cid[4];     /* raw card CID */
 285         u32                     raw_csd[4];     /* raw card CSD */
 286         u32                     raw_scr[2];     /* raw card SCR */
 287         struct mmc_cid          cid;            /* card identification */
 288         struct mmc_csd          csd;            /* card specific */
 289         struct mmc_ext_csd      ext_csd;        /* mmc v4 extended card specific */
 290         struct sd_scr           scr;            /* extra SD information */
 291         struct sd_ssr           ssr;            /* yet more SD information */
 292         struct sd_switch_caps   sw_caps;        /* switch (CMD6) caps */
 293
 294         unsigned int            sdio_funcs;     /* number of SDIO functions */
 295         struct sdio_cccr        cccr;           /* common card info */
 296         struct sdio_cis         cis;            /* common tuple info */
 297         struct sdio_func        *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */
 298         struct sdio_func        *sdio_single_irq; /* SDIO function when only one IRQ active */
 299         unsigned                num_info;       /* number of info strings */
 300         const char              **info;         /* info strings */
 301         struct sdio_func_tuple  *tuples;        /* unknown common tuples */
 302
 303         unsigned int            sd_bus_speed;   /* Bus Speed Mode set for the card */
 304         unsigned int            mmc_avail_type; /* supported device type by both host and card */
 305
 306         struct dentry           *debugfs_root;
 307         struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */
 308         unsigned int    nr_parts;
 309 };
 310
 311 /*
 312  * This function fill contents in mmc_part.
 313  */
 314 static inline void mmc_part_add(struct mmc_card *card, unsigned int size,
 315                         unsigned int part_cfg, char *name, int idx, bool ro,
 316                         int area_type)
 317 {
 318         card->part[card->nr_parts].size = size;
 319         card->part[card->nr_parts].part_cfg = part_cfg;
 320         sprintf(card->part[card->nr_parts].name, name, idx);
 321         card->part[card->nr_parts].force_ro = ro;
 322         card->part[card->nr_parts].area_type = area_type;
 323         card->nr_parts++;
 324 }
 325
 326 static inline bool mmc_large_sector(struct mmc_card *card)
 327 {
 328         return card->ext_csd.data_sector_size == 4096;
 329 }
 330
 331 /*
 332  *  The world is not perfect and supplies us with broken mmc/sdio devices.
 333  *  For at least some of these bugs we need a work-around.
 334  */
 335
 336 struct mmc_fixup {
 337         /* CID-specific fields. */
 338         const char *name;
 339
 340         /* Valid revision range */
 341         u64 rev_start, rev_end;
 342
 343         unsigned int manfid;
 344         unsigned short oemid;
 345
 346         /* SDIO-specfic fields. You can use SDIO_ANY_ID here of course */
 347         u16 cis_vendor, cis_device;
 348
 349         void (*vendor_fixup)(struct mmc_card *card, int data);
 350         int data;
 351 };
 352
 353 #define CID_MANFID_ANY (-1u)
 354 #define CID_OEMID_ANY ((unsigned short) -1)
 355 #define CID_NAME_ANY (NULL)
 356
 357 #define END_FIXUP { NULL }
 358
 359 #define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end,        \
 360                    _cis_vendor, _cis_device,                            \
 361                    _fixup, _data)                                       \
 362         {                                                  \
 363                 .name = (_name),                           \
 364                 .manfid = (_manfid),                       \
 365                 .oemid = (_oemid),                         \
 366                 .rev_start = (_rev_start),                 \
 367                 .rev_end = (_rev_end),                     \
 368                 .cis_vendor = (_cis_vendor),               \
 369                 .cis_device = (_cis_device),               \
 370                 .vendor_fixup = (_fixup),                  \
 371                 .data = (_data),                           \
 372          }
 373
 374 #define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end,     \
 375                       _fixup, _data)                                    \
 376         _FIXUP_EXT(_name, _manfid,                                      \
 377                    _oemid, _rev_start, _rev_end,                        \
 378                    SDIO_ANY_ID, SDIO_ANY_ID,                            \
 379                    _fixup, _data)                                       \
 380
 381 #define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \
 382         MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data)
 383
 384 #define SDIO_FIXUP(_vendor, _device, _fixup, _data)                     \
 385         _FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY,                        \
 386                     CID_OEMID_ANY, 0, -1ull,                            \
 387                    _vendor, _device,                                    \
 388                    _fixup, _data)                                       \
 389
 390 #define cid_rev(hwrev, fwrev, year, month)      \
 391         (((u64) hwrev) << 40 |                  \
 392          ((u64) fwrev) << 32 |                  \
 393          ((u64) year) << 16 |                   \
 394          ((u64) month))
 395
 396 #define cid_rev_card(card)                \
 397         cid_rev(card->cid.hwrev,          \
 398                     card->cid.fwrev,      \
 399                     card->cid.year,       \
 400                     card->cid.month)
 401
 402 /*
 403  * Unconditionally quirk add/remove.
 404  */
 405
 406 static inline void __maybe_unused add_quirk(struct mmc_card *card, int data)
 407 {
 408         card->quirks |= data;
 409 }
 410
 411 static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
 412 {
 413         card->quirks &= ~data;
 414 }
 415
 416 #define mmc_card_mmc(c)         ((c)->type == MMC_TYPE_MMC)
 417 #define mmc_card_sd(c)          ((c)->type == MMC_TYPE_SD)
 418 #define mmc_card_sdio(c)        ((c)->type == MMC_TYPE_SDIO)
 419
 420 #define mmc_card_present(c)     ((c)->state & MMC_STATE_PRESENT)
 421 #define mmc_card_readonly(c)    ((c)->state & MMC_STATE_READONLY)
 422 #define mmc_card_blockaddr(c)   ((c)->state & MMC_STATE_BLOCKADDR)
 423 #define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
 424 #define mmc_card_removed(c)     ((c) && ((c)->state & MMC_CARD_REMOVED))
 425 #define mmc_card_doing_bkops(c) ((c)->state & MMC_STATE_DOING_BKOPS)
 426 #define mmc_card_suspended(c)   ((c)->state & MMC_STATE_SUSPENDED)
 427
 428 #define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
 429 #define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
 430 #define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
 431 #define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
 432 #define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
 433 #define mmc_card_set_doing_bkops(c)     ((c)->state |= MMC_STATE_DOING_BKOPS)
 434 #define mmc_card_clr_doing_bkops(c)     ((c)->state &= ~MMC_STATE_DOING_BKOPS)
 435 #define mmc_card_set_suspended(c) ((c)->state |= MMC_STATE_SUSPENDED)
 436 #define mmc_card_clr_suspended(c) ((c)->state &= ~MMC_STATE_SUSPENDED)
 437
 438 /*
 439  * Quirk add/remove for MMC products.
 440  */
 441
 442 static inline void __maybe_unused add_quirk_mmc(struct mmc_card *card, int data)
 443 {
 444         if (mmc_card_mmc(card))
 445                 card->quirks |= data;
 446 }
 447
 448 static inline void __maybe_unused remove_quirk_mmc(struct mmc_card *card,
 449                                                    int data)
 450 {
 451         if (mmc_card_mmc(card))
 452                 card->quirks &= ~data;
 453 }
 454
 455 /*
 456  * Quirk add/remove for SD products.
 457  */
 458
 459 static inline void __maybe_unused add_quirk_sd(struct mmc_card *card, int data)
 460 {
 461         if (mmc_card_sd(card))
 462                 card->quirks |= data;
 463 }
 464
 465 static inline void __maybe_unused remove_quirk_sd(struct mmc_card *card,
 466                                                    int data)
 467 {
 468         if (mmc_card_sd(card))
 469                 card->quirks &= ~data;
 470 }
 471
 472 static inline int mmc_card_lenient_fn0(const struct mmc_card *c)
 473 {
 474         return c->quirks & MMC_QUIRK_LENIENT_FN0;
 475 }
 476
 477 static inline int mmc_blksz_for_byte_mode(const struct mmc_card *c)
 478 {
 479         return c->quirks & MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
 480 }
 481
 482 static inline int mmc_card_disable_cd(const struct mmc_card *c)
 483 {
 484         return c->quirks & MMC_QUIRK_DISABLE_CD;
 485 }
 486
 487 static inline int mmc_card_nonstd_func_interface(const struct mmc_card *c)
 488 {
 489         return c->quirks & MMC_QUIRK_NONSTD_FUNC_IF;
 490 }
 491
 492 static inline int mmc_card_broken_byte_mode_512(const struct mmc_card *c)
 493 {
 494         return c->quirks & MMC_QUIRK_BROKEN_BYTE_MODE_512;
 495 }
 496
 497 static inline int mmc_card_long_read_time(const struct mmc_card *c)
 498 {
 499         return c->quirks & MMC_QUIRK_LONG_READ_TIME;
 500 }
 501
 502 static inline int mmc_card_broken_irq_polling(const struct mmc_card *c)
 503 {
 504         return c->quirks & MMC_QUIRK_BROKEN_IRQ_POLLING;
 505 }
 506
 507 #define mmc_card_name(c)        ((c)->cid.prod_name)
 508 #define mmc_card_id(c)          (dev_name(&(c)->dev))
 509
 510 #define mmc_dev_to_card(d)      container_of(d, struct mmc_card, dev)
 511
 512 #define mmc_list_to_card(l)     container_of(l, struct mmc_card, node)
 513
 514 extern int mmc_register_driver(struct device_driver *);
 515 extern void mmc_unregister_driver(struct device_driver *);
 516
 517 extern void mmc_fixup_device(struct mmc_card *card,
 518                              const struct mmc_fixup *table);
 519
 520 #endif /* LINUX_MMC_CARD_H */