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 int            serial;
  21         unsigned short          oemid;
  22         unsigned short          year;
  23         unsigned char           hwrev;
  24         unsigned char           fwrev;
  25         unsigned char           month;
  26 };
  27
  28 struct mmc_csd {
  29         unsigned char           structure;
  30         unsigned char           mmca_vsn;
  31         unsigned short          cmdclass;
  32         unsigned short          tacc_clks;
  33         unsigned int            tacc_ns;
  34         unsigned int            c_size;
  35         unsigned int            r2w_factor;
  36         unsigned int            max_dtr;
  37         unsigned int            erase_size;             /* In sectors */
  38         unsigned int            read_blkbits;
  39         unsigned int            write_blkbits;
  40         unsigned int            capacity;
  41         unsigned int            read_partial:1,
  42                                 read_misalign:1,
  43                                 write_partial:1,
  44                                 write_misalign:1;
  45 };
  46
  47 struct mmc_ext_csd {
  48         u8                      rev;
  49         u8                      erase_group_def;
  50         u8                      sec_feature_support;
  51         u8                      rel_sectors;
  52         u8                      rel_param;
  53         u8                      part_config;
  54         u8                      cache_ctrl;
  55         u8                      rst_n_function;
  56         unsigned int            part_time;              /* Units: ms */
  57         unsigned int            sa_timeout;             /* Units: 100ns */
  58         unsigned int            generic_cmd6_time;      /* Units: 10ms */
  59         unsigned int            power_off_longtime;     /* Units: ms */
  60         u8                      power_off_notification; /* state */
  61         unsigned int            hs_max_dtr;
  62 #define MMC_HIGH_26_MAX_DTR     26000000
  63 #define MMC_HIGH_52_MAX_DTR     52000000
  64 #define MMC_HIGH_DDR_MAX_DTR    52000000
  65 #define MMC_HS200_MAX_DTR       200000000
  66         unsigned int            sectors;
  67         unsigned int            card_type;
  68         unsigned int            hc_erase_size;          /* In sectors */
  69         unsigned int            hc_erase_timeout;       /* In milliseconds */
  70         unsigned int            sec_trim_mult;  /* Secure trim multiplier  */
  71         unsigned int            sec_erase_mult; /* Secure erase multiplier */
  72         unsigned int            trim_timeout;           /* In milliseconds */
  73         bool                    enhanced_area_en;       /* enable bit */
  74         unsigned long long      enhanced_area_offset;   /* Units: Byte */
  75         unsigned int            enhanced_area_size;     /* Units: KB */
  76         unsigned int            cache_size;             /* Units: KB */
  77         bool                    hpi_en;                 /* HPI enablebit */
  78         bool                    hpi;                    /* HPI support bit */
  79         unsigned int            hpi_cmd;                /* cmd used as HPI */
  80         bool                    bkops;          /* background support bit */
  81         bool                    bkops_en;       /* background enable bit */
  82         unsigned int            data_sector_size;       /* 512 bytes or 4KB */
  83         unsigned int            data_tag_unit_size;     /* DATA TAG UNIT size */
  84         unsigned int            boot_ro_lock;           /* ro lock support */
  85         bool                    boot_ro_lockable;
  86         u8                      raw_exception_status;   /* 53 */
  87         u8                      raw_partition_support;  /* 160 */
  88         u8                      raw_rpmb_size_mult;     /* 168 */
  89         u8                      raw_erased_mem_count;   /* 181 */
  90         u8                      raw_ext_csd_structure;  /* 194 */
  91         u8                      raw_card_type;          /* 196 */
  92         u8                      out_of_int_time;        /* 198 */
  93         u8                      raw_s_a_timeout;                /* 217 */
  94         u8                      raw_hc_erase_gap_size;  /* 221 */
  95         u8                      raw_erase_timeout_mult; /* 223 */
  96         u8                      raw_hc_erase_grp_size;  /* 224 */
  97         u8                      raw_sec_trim_mult;      /* 229 */
  98         u8                      raw_sec_erase_mult;     /* 230 */
  99         u8                      raw_sec_feature_support;/* 231 */
 100         u8                      raw_trim_mult;          /* 232 */
 101         u8                      raw_bkops_status;       /* 246 */
 102         u8                      raw_sectors[4];         /* 212 - 4 bytes */
 103
 104         unsigned int            feature_support;
 105 #define MMC_DISCARD_FEATURE     BIT(0)                  /* CMD38 feature */
 106 };
 107
 108 struct sd_scr {
 109         unsigned char           sda_vsn;
 110         unsigned char           sda_spec3;
 111         unsigned char           bus_widths;
 112 #define SD_SCR_BUS_WIDTH_1      (1<<0)
 113 #define SD_SCR_BUS_WIDTH_4      (1<<2)
 114         unsigned char           cmds;
 115 #define SD_SCR_CMD20_SUPPORT   (1<<0)
 116 #define SD_SCR_CMD23_SUPPORT   (1<<1)
 117 };
 118
 119 struct sd_ssr {
 120         unsigned int            au;                     /* In sectors */
 121         unsigned int            erase_timeout;          /* In milliseconds */
 122         unsigned int            erase_offset;           /* In milliseconds */
 123 };
 124
 125 struct sd_switch_caps {
 126         unsigned int            hs_max_dtr;
 127         unsigned int            uhs_max_dtr;
 128 #define HIGH_SPEED_MAX_DTR      50000000
 129 #define UHS_SDR104_MAX_DTR      208000000
 130 #define UHS_SDR50_MAX_DTR       100000000
 131 #define UHS_DDR50_MAX_DTR       50000000
 132 #define UHS_SDR25_MAX_DTR       UHS_DDR50_MAX_DTR
 133 #define UHS_SDR12_MAX_DTR       25000000
 134         unsigned int            sd3_bus_mode;
 135 #define UHS_SDR12_BUS_SPEED     0
 136 #define HIGH_SPEED_BUS_SPEED    1
 137 #define UHS_SDR25_BUS_SPEED     1
 138 #define UHS_SDR50_BUS_SPEED     2
 139 #define UHS_SDR104_BUS_SPEED    3
 140 #define UHS_DDR50_BUS_SPEED     4
 141
 142 #define SD_MODE_HIGH_SPEED      (1 << HIGH_SPEED_BUS_SPEED)
 143 #define SD_MODE_UHS_SDR12       (1 << UHS_SDR12_BUS_SPEED)
 144 #define SD_MODE_UHS_SDR25       (1 << UHS_SDR25_BUS_SPEED)
 145 #define SD_MODE_UHS_SDR50       (1 << UHS_SDR50_BUS_SPEED)
 146 #define SD_MODE_UHS_SDR104      (1 << UHS_SDR104_BUS_SPEED)
 147 #define SD_MODE_UHS_DDR50       (1 << UHS_DDR50_BUS_SPEED)
 148         unsigned int            sd3_drv_type;
 149 #define SD_DRIVER_TYPE_B        0x01
 150 #define SD_DRIVER_TYPE_A        0x02
 151 #define SD_DRIVER_TYPE_C        0x04
 152 #define SD_DRIVER_TYPE_D        0x08
 153         unsigned int            sd3_curr_limit;
 154 #define SD_SET_CURRENT_LIMIT_200        0
 155 #define SD_SET_CURRENT_LIMIT_400        1
 156 #define SD_SET_CURRENT_LIMIT_600        2
 157 #define SD_SET_CURRENT_LIMIT_800        3
 158 #define SD_SET_CURRENT_NO_CHANGE        (-1)
 159
 160 #define SD_MAX_CURRENT_200      (1 << SD_SET_CURRENT_LIMIT_200)
 161 #define SD_MAX_CURRENT_400      (1 << SD_SET_CURRENT_LIMIT_400)
 162 #define SD_MAX_CURRENT_600      (1 << SD_SET_CURRENT_LIMIT_600)
 163 #define SD_MAX_CURRENT_800      (1 << SD_SET_CURRENT_LIMIT_800)
 164 };
 165
 166 struct sdio_cccr {
 167         unsigned int            sdio_vsn;
 168         unsigned int            sd_vsn;
 169         unsigned int            multi_block:1,
 170                                 low_speed:1,
 171                                 wide_bus:1,
 172                                 high_power:1,
 173                                 high_speed:1,
 174                                 disable_cd:1;
 175 };
 176
 177 struct sdio_cis {
 178         unsigned short          vendor;
 179         unsigned short          device;
 180         unsigned short          blksize;
 181         unsigned int            max_dtr;
 182 };
 183
 184 struct mmc_host;
 185 struct sdio_func;
 186 struct sdio_func_tuple;
 187
 188 #define SDIO_MAX_FUNCS          7
 189
 190 /* The number of MMC physical partitions.  These consist of:
 191  * boot partitions (2), general purpose partitions (4) in MMC v4.4.
 192  */
 193 #define MMC_NUM_BOOT_PARTITION  2
 194 #define MMC_NUM_GP_PARTITION    4
 195 #define MMC_NUM_PHY_PARTITION   6
 196 #define MAX_MMC_PART_NAME_LEN   20
 197
 198 /*
 199  * MMC Physical partitions
 200  */
 201 struct mmc_part {
 202         unsigned int    size;   /* partition size (in bytes) */
 203         unsigned int    part_cfg;       /* partition type */
 204         char    name[MAX_MMC_PART_NAME_LEN];
 205         bool    force_ro;       /* to make boot parts RO by default */
 206         unsigned int    area_type;
 207 #define MMC_BLK_DATA_AREA_MAIN  (1<<0)
 208 #define MMC_BLK_DATA_AREA_BOOT  (1<<1)
 209 #define MMC_BLK_DATA_AREA_GP    (1<<2)
 210 #define MMC_BLK_DATA_AREA_RPMB  (1<<3)
 211 };
 212
 213 /*
 214  * MMC device
 215  */
 216 struct mmc_card {
 217         struct mmc_host         *host;          /* the host this device belongs to */
 218         struct device           dev;            /* the device */
 219         unsigned int            rca;            /* relative card address of device */
 220         unsigned int            type;           /* card type */
 221 #define MMC_TYPE_MMC            0               /* MMC card */
 222 #define MMC_TYPE_SD             1               /* SD card */
 223 #define MMC_TYPE_SDIO           2               /* SDIO card */
 224 #define MMC_TYPE_SD_COMBO       3               /* SD combo (IO+mem) card */
 225         unsigned int            state;          /* (our) card state */
 226 #define MMC_STATE_PRESENT       (1<<0)          /* present in sysfs */
 227 #define MMC_STATE_READONLY      (1<<1)          /* card is read-only */
 228 #define MMC_STATE_HIGHSPEED     (1<<2)          /* card is in high speed mode */
 229 #define MMC_STATE_BLOCKADDR     (1<<3)          /* card uses block-addressing */
 230 #define MMC_STATE_HIGHSPEED_DDR (1<<4)          /* card is in high speed mode */
 231 #define MMC_STATE_ULTRAHIGHSPEED (1<<5)         /* card is in ultra high speed mode */
 232 #define MMC_CARD_SDXC           (1<<6)          /* card is SDXC */
 233 #define MMC_CARD_REMOVED        (1<<7)          /* card has been removed */
 234 #define MMC_STATE_HIGHSPEED_200 (1<<8)          /* card is in HS200 mode */
 235 #define MMC_STATE_DOING_BKOPS   (1<<10)         /* card is doing BKOPS */
 236         unsigned int            quirks;         /* card quirks */
 237 #define MMC_QUIRK_LENIENT_FN0   (1<<0)          /* allow SDIO FN0 writes outside of the VS CCCR range */
 238 #define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1)    /* use func->cur_blksize */
 239                                                 /* for byte mode */
 240 #define MMC_QUIRK_NONSTD_SDIO   (1<<2)          /* non-standard SDIO card attached */
 241                                                 /* (missing CIA registers) */
 242 #define MMC_QUIRK_BROKEN_CLK_GATING (1<<3)      /* clock gating the sdio bus will make card fail */
 243 #define MMC_QUIRK_NONSTD_FUNC_IF (1<<4)         /* SDIO card has nonstd function interfaces */
 244 #define MMC_QUIRK_DISABLE_CD    (1<<5)          /* disconnect CD/DAT[3] resistor */
 245 #define MMC_QUIRK_INAND_CMD38   (1<<6)          /* iNAND devices have broken CMD38 */
 246 #define MMC_QUIRK_BLK_NO_CMD23  (1<<7)          /* Avoid CMD23 for regular multiblock */
 247 #define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8)   /* Avoid sending 512 bytes in */
 248 #define MMC_QUIRK_LONG_READ_TIME (1<<9)         /* Data read time > CSD says */
 249 #define MMC_QUIRK_SEC_ERASE_TRIM_BROKEN (1<<10) /* Skip secure for erase/trim */
 250                                                 /* byte mode */
 251
 252         unsigned int            erase_size;     /* erase size in sectors */
 253         unsigned int            erase_shift;    /* if erase unit is power 2 */
 254         unsigned int            pref_erase;     /* in sectors */
 255         u8                      erased_byte;    /* value of erased bytes */
 256
 257         u32                     raw_cid[4];     /* raw card CID */
 258         u32                     raw_csd[4];     /* raw card CSD */
 259         u32                     raw_scr[2];     /* raw card SCR */
 260         struct mmc_cid          cid;            /* card identification */
 261         struct mmc_csd          csd;            /* card specific */
 262         struct mmc_ext_csd      ext_csd;        /* mmc v4 extended card specific */
 263         struct sd_scr           scr;            /* extra SD information */
 264         struct sd_ssr           ssr;            /* yet more SD information */
 265         struct sd_switch_caps   sw_caps;        /* switch (CMD6) caps */
 266
 267         unsigned int            sdio_funcs;     /* number of SDIO functions */
 268         struct sdio_cccr        cccr;           /* common card info */
 269         struct sdio_cis         cis;            /* common tuple info */
 270         struct sdio_func        *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */
 271         struct sdio_func        *sdio_single_irq; /* SDIO function when only one IRQ active */
 272         unsigned                num_info;       /* number of info strings */
 273         const char              **info;         /* info strings */
 274         struct sdio_func_tuple  *tuples;        /* unknown common tuples */
 275
 276         unsigned int            sd_bus_speed;   /* Bus Speed Mode set for the card */
 277
 278         struct dentry           *debugfs_root;
 279         struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */
 280         unsigned int    nr_parts;
 281 };
 282
 283 /*
 284  * This function fill contents in mmc_part.
 285  */
 286 static inline void mmc_part_add(struct mmc_card *card, unsigned int size,
 287                         unsigned int part_cfg, char *name, int idx, bool ro,
 288                         int area_type)
 289 {
 290         card->part[card->nr_parts].size = size;
 291         card->part[card->nr_parts].part_cfg = part_cfg;
 292         sprintf(card->part[card->nr_parts].name, name, idx);
 293         card->part[card->nr_parts].force_ro = ro;
 294         card->part[card->nr_parts].area_type = area_type;
 295         card->nr_parts++;
 296 }
 297
 298 /*
 299  *  The world is not perfect and supplies us with broken mmc/sdio devices.
 300  *  For at least some of these bugs we need a work-around.
 301  */
 302
 303 struct mmc_fixup {
 304         /* CID-specific fields. */
 305         const char *name;
 306
 307         /* Valid revision range */
 308         u64 rev_start, rev_end;
 309
 310         unsigned int manfid;
 311         unsigned short oemid;
 312
 313         /* SDIO-specfic fields. You can use SDIO_ANY_ID here of course */
 314         u16 cis_vendor, cis_device;
 315
 316         void (*vendor_fixup)(struct mmc_card *card, int data);
 317         int data;
 318 };
 319
 320 #define CID_MANFID_ANY (-1u)
 321 #define CID_OEMID_ANY ((unsigned short) -1)
 322 #define CID_NAME_ANY (NULL)
 323
 324 #define END_FIXUP { 0 }
 325
 326 #define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end,        \
 327                    _cis_vendor, _cis_device,                            \
 328                    _fixup, _data)                                       \
 329         {                                                  \
 330                 .name = (_name),                           \
 331                 .manfid = (_manfid),                       \
 332                 .oemid = (_oemid),                         \
 333                 .rev_start = (_rev_start),                 \
 334                 .rev_end = (_rev_end),                     \
 335                 .cis_vendor = (_cis_vendor),               \
 336                 .cis_device = (_cis_device),               \
 337                 .vendor_fixup = (_fixup),                  \
 338                 .data = (_data),                           \
 339          }
 340
 341 #define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end,     \
 342                       _fixup, _data)                                    \
 343         _FIXUP_EXT(_name, _manfid,                                      \
 344                    _oemid, _rev_start, _rev_end,                        \
 345                    SDIO_ANY_ID, SDIO_ANY_ID,                            \
 346                    _fixup, _data)                                       \
 347
 348 #define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \
 349         MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data)
 350
 351 #define SDIO_FIXUP(_vendor, _device, _fixup, _data)                     \
 352         _FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY,                        \
 353                     CID_OEMID_ANY, 0, -1ull,                            \
 354                    _vendor, _device,                                    \
 355                    _fixup, _data)                                       \
 356
 357 #define cid_rev(hwrev, fwrev, year, month)      \
 358         (((u64) hwrev) << 40 |                  \
 359          ((u64) fwrev) << 32 |                  \
 360          ((u64) year) << 16 |                   \
 361          ((u64) month))
 362
 363 #define cid_rev_card(card)                \
 364         cid_rev(card->cid.hwrev,          \
 365                     card->cid.fwrev,      \
 366                     card->cid.year,       \
 367                     card->cid.month)
 368
 369 /*
 370  * Unconditionally quirk add/remove.
 371  */
 372
 373 static inline void __maybe_unused add_quirk(struct mmc_card *card, int data)
 374 {
 375         card->quirks |= data;
 376 }
 377
 378 static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
 379 {
 380         card->quirks &= ~data;
 381 }
 382
 383 #define mmc_card_mmc(c)         ((c)->type == MMC_TYPE_MMC)
 384 #define mmc_card_sd(c)          ((c)->type == MMC_TYPE_SD)
 385 #define mmc_card_sdio(c)        ((c)->type == MMC_TYPE_SDIO)
 386
 387 #define mmc_card_present(c)     ((c)->state & MMC_STATE_PRESENT)
 388 #define mmc_card_readonly(c)    ((c)->state & MMC_STATE_READONLY)
 389 #define mmc_card_highspeed(c)   ((c)->state & MMC_STATE_HIGHSPEED)
 390 #define mmc_card_hs200(c)       ((c)->state & MMC_STATE_HIGHSPEED_200)
 391 #define mmc_card_blockaddr(c)   ((c)->state & MMC_STATE_BLOCKADDR)
 392 #define mmc_card_ddr_mode(c)    ((c)->state & MMC_STATE_HIGHSPEED_DDR)
 393 #define mmc_card_uhs(c)         ((c)->state & MMC_STATE_ULTRAHIGHSPEED)
 394 #define mmc_sd_card_uhs(c)      ((c)->state & MMC_STATE_ULTRAHIGHSPEED)
 395 #define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
 396 #define mmc_card_removed(c)     ((c) && ((c)->state & MMC_CARD_REMOVED))
 397 #define mmc_card_doing_bkops(c) ((c)->state & MMC_STATE_DOING_BKOPS)
 398
 399 #define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
 400 #define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
 401 #define mmc_card_set_highspeed(c) ((c)->state |= MMC_STATE_HIGHSPEED)
 402 #define mmc_card_set_hs200(c)   ((c)->state |= MMC_STATE_HIGHSPEED_200)
 403 #define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
 404 #define mmc_card_set_ddr_mode(c) ((c)->state |= MMC_STATE_HIGHSPEED_DDR)
 405 #define mmc_card_set_uhs(c) ((c)->state |= MMC_STATE_ULTRAHIGHSPEED)
 406 #define mmc_sd_card_set_uhs(c) ((c)->state |= MMC_STATE_ULTRAHIGHSPEED)
 407 #define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
 408 #define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
 409 #define mmc_card_set_doing_bkops(c)     ((c)->state |= MMC_STATE_DOING_BKOPS)
 410 #define mmc_card_clr_doing_bkops(c)     ((c)->state &= ~MMC_STATE_DOING_BKOPS)
 411
 412 /*
 413  * Quirk add/remove for MMC products.
 414  */
 415
 416 static inline void __maybe_unused add_quirk_mmc(struct mmc_card *card, int data)
 417 {
 418         if (mmc_card_mmc(card))
 419                 card->quirks |= data;
 420 }
 421
 422 static inline void __maybe_unused remove_quirk_mmc(struct mmc_card *card,
 423                                                    int data)
 424 {
 425         if (mmc_card_mmc(card))
 426                 card->quirks &= ~data;
 427 }
 428
 429 /*
 430  * Quirk add/remove for SD products.
 431  */
 432
 433 static inline void __maybe_unused add_quirk_sd(struct mmc_card *card, int data)
 434 {
 435         if (mmc_card_sd(card))
 436                 card->quirks |= data;
 437 }
 438
 439 static inline void __maybe_unused remove_quirk_sd(struct mmc_card *card,
 440                                                    int data)
 441 {
 442         if (mmc_card_sd(card))
 443                 card->quirks &= ~data;
 444 }
 445
 446 static inline int mmc_card_lenient_fn0(const struct mmc_card *c)
 447 {
 448         return c->quirks & MMC_QUIRK_LENIENT_FN0;
 449 }
 450
 451 static inline int mmc_blksz_for_byte_mode(const struct mmc_card *c)
 452 {
 453         return c->quirks & MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
 454 }
 455
 456 static inline int mmc_card_disable_cd(const struct mmc_card *c)
 457 {
 458         return c->quirks & MMC_QUIRK_DISABLE_CD;
 459 }
 460
 461 static inline int mmc_card_nonstd_func_interface(const struct mmc_card *c)
 462 {
 463         return c->quirks & MMC_QUIRK_NONSTD_FUNC_IF;
 464 }
 465
 466 static inline int mmc_card_broken_byte_mode_512(const struct mmc_card *c)
 467 {
 468         return c->quirks & MMC_QUIRK_BROKEN_BYTE_MODE_512;
 469 }
 470
 471 static inline int mmc_card_long_read_time(const struct mmc_card *c)
 472 {
 473         return c->quirks & MMC_QUIRK_LONG_READ_TIME;
 474 }
 475
 476 #define mmc_card_name(c)        ((c)->cid.prod_name)
 477 #define mmc_card_id(c)          (dev_name(&(c)->dev))
 478
 479 #define mmc_dev_to_card(d)      container_of(d, struct mmc_card, dev)
 480
 481 #define mmc_list_to_card(l)     container_of(l, struct mmc_card, node)
 482 #define mmc_get_drvdata(c)      dev_get_drvdata(&(c)->dev)
 483 #define mmc_set_drvdata(c,d)    dev_set_drvdata(&(c)->dev, d)
 484
 485 /*
 486  * MMC device driver (e.g., Flash card, I/O card...)
 487  */
 488 struct mmc_driver {
 489         struct device_driver drv;
 490         int (*probe)(struct mmc_card *);
 491         void (*remove)(struct mmc_card *);
 492         int (*suspend)(struct mmc_card *);
 493         int (*resume)(struct mmc_card *);
 494 };
 495
 496 extern int mmc_register_driver(struct mmc_driver *);
 497 extern void mmc_unregister_driver(struct mmc_driver *);
 498
 499 extern void mmc_fixup_device(struct mmc_card *card,
 500                              const struct mmc_fixup *table);
 501
 502 #endif /* LINUX_MMC_CARD_H */