LXR linux/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
  17struct 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
  29struct 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
  49struct 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                    man_bkops_en;   /* manual bkops 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        bool                    ffu_capable;    /* Firmware upgrade support */
  92#define MMC_FIRMWARE_LEN 8
  93        u8                      fwrev[MMC_FIRMWARE_LEN];  /* FW version */
  94        u8                      raw_exception_status;   /* 54 */
  95        u8                      raw_partition_support;  /* 160 */
  96        u8                      raw_rpmb_size_mult;     /* 168 */
  97        u8                      raw_erased_mem_count;   /* 181 */
  98        u8                      raw_ext_csd_structure;  /* 194 */
  99        u8                      raw_card_type;          /* 196 */
 100        u8                      out_of_int_time;        /* 198 */
 101        u8                      raw_pwr_cl_52_195;      /* 200 */
 102        u8                      raw_pwr_cl_26_195;      /* 201 */
 103        u8                      raw_pwr_cl_52_360;      /* 202 */
 104        u8                      raw_pwr_cl_26_360;      /* 203 */
 105        u8                      raw_s_a_timeout;        /* 217 */
 106        u8                      raw_hc_erase_gap_size;  /* 221 */
 107        u8                      raw_erase_timeout_mult; /* 223 */
 108        u8                      raw_hc_erase_grp_size;  /* 224 */
 109        u8                      raw_sec_trim_mult;      /* 229 */
 110        u8                      raw_sec_erase_mult;     /* 230 */
 111        u8                      raw_sec_feature_support;/* 231 */
 112        u8                      raw_trim_mult;          /* 232 */
 113        u8                      raw_pwr_cl_200_195;     /* 236 */
 114        u8                      raw_pwr_cl_200_360;     /* 237 */
 115        u8                      raw_pwr_cl_ddr_52_195;  /* 238 */
 116        u8                      raw_pwr_cl_ddr_52_360;  /* 239 */
 117        u8                      raw_pwr_cl_ddr_200_360; /* 253 */
 118        u8                      raw_bkops_status;       /* 246 */
 119        u8                      raw_sectors[4];         /* 212 - 4 bytes */
 120
 121        unsigned int            feature_support;
 122#define MMC_DISCARD_FEATURE     BIT(0)                  /* CMD38 feature */
 123};
 124
 125struct sd_scr {
 126        unsigned char           sda_vsn;
 127        unsigned char           sda_spec3;
 128        unsigned char           bus_widths;
 129#define SD_SCR_BUS_WIDTH_1      (1<<0)
 130#define SD_SCR_BUS_WIDTH_4      (1<<2)
 131        unsigned char           cmds;
 132#define SD_SCR_CMD20_SUPPORT   (1<<0)
 133#define SD_SCR_CMD23_SUPPORT   (1<<1)
 134};
 135
 136struct sd_ssr {
 137        unsigned int            au;                     /* In sectors */
 138        unsigned int            erase_timeout;          /* In milliseconds */
 139        unsigned int            erase_offset;           /* In milliseconds */
 140};
 141
 142struct sd_switch_caps {
 143        unsigned int            hs_max_dtr;
 144        unsigned int            uhs_max_dtr;
 145#define HIGH_SPEED_MAX_DTR      50000000
 146#define UHS_SDR104_MAX_DTR      208000000
 147#define UHS_SDR50_MAX_DTR       100000000
 148#define UHS_DDR50_MAX_DTR       50000000
 149#define UHS_SDR25_MAX_DTR       UHS_DDR50_MAX_DTR
 150#define UHS_SDR12_MAX_DTR       25000000
 151        unsigned int            sd3_bus_mode;
 152#define UHS_SDR12_BUS_SPEED     0
 153#define HIGH_SPEED_BUS_SPEED    1
 154#define UHS_SDR25_BUS_SPEED     1
 155#define UHS_SDR50_BUS_SPEED     2
 156#define UHS_SDR104_BUS_SPEED    3
 157#define UHS_DDR50_BUS_SPEED     4
 158
 159#define SD_MODE_HIGH_SPEED      (1 << HIGH_SPEED_BUS_SPEED)
 160#define SD_MODE_UHS_SDR12       (1 << UHS_SDR12_BUS_SPEED)
 161#define SD_MODE_UHS_SDR25       (1 << UHS_SDR25_BUS_SPEED)
 162#define SD_MODE_UHS_SDR50       (1 << UHS_SDR50_BUS_SPEED)
 163#define SD_MODE_UHS_SDR104      (1 << UHS_SDR104_BUS_SPEED)
 164#define SD_MODE_UHS_DDR50       (1 << UHS_DDR50_BUS_SPEED)
 165        unsigned int            sd3_drv_type;
 166#define SD_DRIVER_TYPE_B        0x01
 167#define SD_DRIVER_TYPE_A        0x02
 168#define SD_DRIVER_TYPE_C        0x04
 169#define SD_DRIVER_TYPE_D        0x08
 170        unsigned int            sd3_curr_limit;
 171#define SD_SET_CURRENT_LIMIT_200        0
 172#define SD_SET_CURRENT_LIMIT_400        1
 173#define SD_SET_CURRENT_LIMIT_600        2
 174#define SD_SET_CURRENT_LIMIT_800        3
 175#define SD_SET_CURRENT_NO_CHANGE        (-1)
 176
 177#define SD_MAX_CURRENT_200      (1 << SD_SET_CURRENT_LIMIT_200)
 178#define SD_MAX_CURRENT_400      (1 << SD_SET_CURRENT_LIMIT_400)
 179#define SD_MAX_CURRENT_600      (1 << SD_SET_CURRENT_LIMIT_600)
 180#define SD_MAX_CURRENT_800      (1 << SD_SET_CURRENT_LIMIT_800)
 181};
 182
 183struct sdio_cccr {
 184        unsigned int            sdio_vsn;
 185        unsigned int            sd_vsn;
 186        unsigned int            multi_block:1,
 187                                low_speed:1,
 188                                wide_bus:1,
 189                                high_power:1,
 190                                high_speed:1,
 191                                disable_cd:1;
 192};
 193
 194struct sdio_cis {
 195        unsigned short          vendor;
 196        unsigned short          device;
 197        unsigned short          blksize;
 198        unsigned int            max_dtr;
 199};
 200
 201struct mmc_host;
 202struct mmc_ios;
 203struct sdio_func;
 204struct sdio_func_tuple;
 205
 206#define SDIO_MAX_FUNCS          7
 207
 208enum mmc_blk_status {
 209        MMC_BLK_SUCCESS = 0,
 210        MMC_BLK_PARTIAL,
 211        MMC_BLK_CMD_ERR,
 212        MMC_BLK_RETRY,
 213        MMC_BLK_ABORT,
 214        MMC_BLK_DATA_ERR,
 215        MMC_BLK_ECC_ERR,
 216        MMC_BLK_NOMEDIUM,
 217        MMC_BLK_NEW_REQUEST,
 218};
 219
 220/* The number of MMC physical partitions.  These consist of:
 221 * boot partitions (2), general purpose partitions (4) and
 222 * RPMB partition (1) in MMC v4.4.
 223 */
 224#define MMC_NUM_BOOT_PARTITION  2
 225#define MMC_NUM_GP_PARTITION    4
 226#define MMC_NUM_PHY_PARTITION   7
 227#define MAX_MMC_PART_NAME_LEN   20
 228
 229/*
 230 * MMC Physical partitions
 231 */
 232struct mmc_part {
 233        unsigned int    size;   /* partition size (in bytes) */
 234        unsigned int    part_cfg;       /* partition type */
 235        char    name[MAX_MMC_PART_NAME_LEN];
 236        bool    force_ro;       /* to make boot parts RO by default */
 237        unsigned int    area_type;
 238#define MMC_BLK_DATA_AREA_MAIN  (1<<0)
 239#define MMC_BLK_DATA_AREA_BOOT  (1<<1)
 240#define MMC_BLK_DATA_AREA_GP    (1<<2)
 241#define MMC_BLK_DATA_AREA_RPMB  (1<<3)
 242};
 243
 244/*
 245 * MMC device
 246 */
 247struct mmc_card {
 248        struct mmc_host         *host;          /* the host this device belongs to */
 249        struct device           dev;            /* the device */
 250        u32                     ocr;            /* the current OCR setting */
 251        unsigned int            rca;            /* relative card address of device */
 252        unsigned int            type;           /* card type */
 253#define MMC_TYPE_MMC            0               /* MMC card */
 254#define MMC_TYPE_SD             1               /* SD card */
 255#define MMC_TYPE_SDIO           2               /* SDIO card */
 256#define MMC_TYPE_SD_COMBO       3               /* SD combo (IO+mem) card */
 257        unsigned int            state;          /* (our) card state */
 258#define MMC_STATE_PRESENT       (1<<0)          /* present in sysfs */
 259#define MMC_STATE_READONLY      (1<<1)          /* card is read-only */
 260#define MMC_STATE_BLOCKADDR     (1<<2)          /* card uses block-addressing */
 261#define MMC_CARD_SDXC           (1<<3)          /* card is SDXC */
 262#define MMC_CARD_REMOVED        (1<<4)          /* card has been removed */
 263#define MMC_STATE_DOING_BKOPS   (1<<5)          /* card is doing BKOPS */
 264#define MMC_STATE_SUSPENDED     (1<<6)          /* card is suspended */
 265        unsigned int            quirks;         /* card quirks */
 266#define MMC_QUIRK_LENIENT_FN0   (1<<0)          /* allow SDIO FN0 writes outside of the VS CCCR range */
 267#define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1)    /* use func->cur_blksize */
 268                                                /* for byte mode */
 269#define MMC_QUIRK_NONSTD_SDIO   (1<<2)          /* non-standard SDIO card attached */
 270                                                /* (missing CIA registers) */
 271#define MMC_QUIRK_BROKEN_CLK_GATING (1<<3)      /* clock gating the sdio bus will make card fail */
 272#define MMC_QUIRK_NONSTD_FUNC_IF (1<<4)         /* SDIO card has nonstd function interfaces */
 273#define MMC_QUIRK_DISABLE_CD    (1<<5)          /* disconnect CD/DAT[3] resistor */
 274#define MMC_QUIRK_INAND_CMD38   (1<<6)          /* iNAND devices have broken CMD38 */
 275#define MMC_QUIRK_BLK_NO_CMD23  (1<<7)          /* Avoid CMD23 for regular multiblock */
 276#define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8)   /* Avoid sending 512 bytes in */
 277                                                /* byte mode */
 278#define MMC_QUIRK_LONG_READ_TIME (1<<9)         /* Data read time > CSD says */
 279#define MMC_QUIRK_SEC_ERASE_TRIM_BROKEN (1<<10) /* Skip secure for erase/trim */
 280#define MMC_QUIRK_BROKEN_IRQ_POLLING    (1<<11) /* Polling SDIO_CCCR_INTx could create a fake interrupt */
 281
 282        unsigned int            erase_size;     /* erase size in sectors */
 283        unsigned int            erase_shift;    /* if erase unit is power 2 */
 284        unsigned int            pref_erase;     /* in sectors */
 285        u8                      erased_byte;    /* value of erased bytes */
 286
 287        u32                     raw_cid[4];     /* raw card CID */
 288        u32                     raw_csd[4];     /* raw card CSD */
 289        u32                     raw_scr[2];     /* raw card SCR */
 290        struct mmc_cid          cid;            /* card identification */
 291        struct mmc_csd          csd;            /* card specific */
 292        struct mmc_ext_csd      ext_csd;        /* mmc v4 extended card specific */
 293        struct sd_scr           scr;            /* extra SD information */
 294        struct sd_ssr           ssr;            /* yet more SD information */
 295        struct sd_switch_caps   sw_caps;        /* switch (CMD6) caps */
 296
 297        unsigned int            sdio_funcs;     /* number of SDIO functions */
 298        struct sdio_cccr        cccr;           /* common card info */
 299        struct sdio_cis         cis;            /* common tuple info */
 300        struct sdio_func        *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */
 301        struct sdio_func        *sdio_single_irq; /* SDIO function when only one IRQ active */
 302        unsigned                num_info;       /* number of info strings */
 303        const char              **info;         /* info strings */
 304        struct sdio_func_tuple  *tuples;        /* unknown common tuples */
 305
 306        unsigned int            sd_bus_speed;   /* Bus Speed Mode set for the card */
 307        unsigned int            mmc_avail_type; /* supported device type by both host and card */
 308
 309        struct dentry           *debugfs_root;
 310        struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */
 311        unsigned int    nr_parts;
 312};
 313
 314/*
 315 * This function fill contents in mmc_part.
 316 */
 317static inline void mmc_part_add(struct mmc_card *card, unsigned int size,
 318                        unsigned int part_cfg, char *name, int idx, bool ro,
 319                        int area_type)
 320{
 321        card->part[card->nr_parts].size = size;
 322        card->part[card->nr_parts].part_cfg = part_cfg;
 323        sprintf(card->part[card->nr_parts].name, name, idx);
 324        card->part[card->nr_parts].force_ro = ro;
 325        card->part[card->nr_parts].area_type = area_type;
 326        card->nr_parts++;
 327}
 328
 329static inline bool mmc_large_sector(struct mmc_card *card)
 330{
 331        return card->ext_csd.data_sector_size == 4096;
 332}
 333
 334/*
 335 *  The world is not perfect and supplies us with broken mmc/sdio devices.
 336 *  For at least some of these bugs we need a work-around.
 337 */
 338
 339struct mmc_fixup {
 340        /* CID-specific fields. */
 341        const char *name;
 342
 343        /* Valid revision range */
 344        u64 rev_start, rev_end;
 345
 346        unsigned int manfid;
 347        unsigned short oemid;
 348
 349        /* SDIO-specfic fields. You can use SDIO_ANY_ID here of course */
 350        u16 cis_vendor, cis_device;
 351
 352        void (*vendor_fixup)(struct mmc_card *card, int data);
 353        int data;
 354};
 355
 356#define CID_MANFID_ANY (-1u)
 357#define CID_OEMID_ANY ((unsigned short) -1)
 358#define CID_NAME_ANY (NULL)
 359
 360#define END_FIXUP { NULL }
 361
 362#define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end,        \
 363                   _cis_vendor, _cis_device,                            \
 364                   _fixup, _data)                                       \
 365        {                                                  \
 366                .name = (_name),                           \
 367                .manfid = (_manfid),                       \
 368                .oemid = (_oemid),                         \
 369                .rev_start = (_rev_start),                 \
 370                .rev_end = (_rev_end),                     \
 371                .cis_vendor = (_cis_vendor),               \
 372                .cis_device = (_cis_device),               \
 373                .vendor_fixup = (_fixup),                  \
 374                .data = (_data),                           \
 375         }
 376
 377#define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end,     \
 378                      _fixup, _data)                                    \
 379        _FIXUP_EXT(_name, _manfid,                                      \
 380                   _oemid, _rev_start, _rev_end,                        \
 381                   SDIO_ANY_ID, SDIO_ANY_ID,                            \
 382                   _fixup, _data)                                       \
 383
 384#define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \
 385        MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data)
 386
 387#define SDIO_FIXUP(_vendor, _device, _fixup, _data)                     \
 388        _FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY,                        \
 389                    CID_OEMID_ANY, 0, -1ull,                            \
 390                   _vendor, _device,                                    \
 391                   _fixup, _data)                                       \
 392
 393#define cid_rev(hwrev, fwrev, year, month)      \
 394        (((u64) hwrev) << 40 |                  \
 395         ((u64) fwrev) << 32 |                  \
 396         ((u64) year) << 16 |                   \
 397         ((u64) month))
 398
 399#define cid_rev_card(card)                \
 400        cid_rev(card->cid.hwrev,          \
 401                    card->cid.fwrev,      \
 402                    card->cid.year,       \
 403                    card->cid.month)
 404
 405/*
 406 * Unconditionally quirk add/remove.
 407 */
 408
 409static inline void __maybe_unused add_quirk(struct mmc_card *card, int data)
 410{
 411        card->quirks |= data;
 412}
 413
 414static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
 415{
 416        card->quirks &= ~data;
 417}
 418
 419#define mmc_card_mmc(c)         ((c)->type == MMC_TYPE_MMC)
 420#define mmc_card_sd(c)          ((c)->type == MMC_TYPE_SD)
 421#define mmc_card_sdio(c)        ((c)->type == MMC_TYPE_SDIO)
 422
 423#define mmc_card_present(c)     ((c)->state & MMC_STATE_PRESENT)
 424#define mmc_card_readonly(c)    ((c)->state & MMC_STATE_READONLY)
 425#define mmc_card_blockaddr(c)   ((c)->state & MMC_STATE_BLOCKADDR)
 426#define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
 427#define mmc_card_removed(c)     ((c) && ((c)->state & MMC_CARD_REMOVED))
 428#define mmc_card_doing_bkops(c) ((c)->state & MMC_STATE_DOING_BKOPS)
 429#define mmc_card_suspended(c)   ((c)->state & MMC_STATE_SUSPENDED)
 430
 431#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
 432#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
 433#define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
 434#define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
 435#define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
 436#define mmc_card_set_doing_bkops(c)     ((c)->state |= MMC_STATE_DOING_BKOPS)
 437#define mmc_card_clr_doing_bkops(c)     ((c)->state &= ~MMC_STATE_DOING_BKOPS)
 438#define mmc_card_set_suspended(c) ((c)->state |= MMC_STATE_SUSPENDED)
 439#define mmc_card_clr_suspended(c) ((c)->state &= ~MMC_STATE_SUSPENDED)
 440
 441/*
 442 * Quirk add/remove for MMC products.
 443 */
 444
 445static inline void __maybe_unused add_quirk_mmc(struct mmc_card *card, int data)
 446{
 447        if (mmc_card_mmc(card))
 448                card->quirks |= data;
 449}
 450
 451static inline void __maybe_unused remove_quirk_mmc(struct mmc_card *card,
 452                                                   int data)
 453{
 454        if (mmc_card_mmc(card))
 455                card->quirks &= ~data;
 456}
 457
 458/*
 459 * Quirk add/remove for SD products.
 460 */
 461
 462static inline void __maybe_unused add_quirk_sd(struct mmc_card *card, int data)
 463{
 464        if (mmc_card_sd(card))
 465                card->quirks |= data;
 466}
 467
 468static inline void __maybe_unused remove_quirk_sd(struct mmc_card *card,
 469                                                   int data)
 470{
 471        if (mmc_card_sd(card))
 472                card->quirks &= ~data;
 473}
 474
 475static inline int mmc_card_lenient_fn0(const struct mmc_card *c)
 476{
 477        return c->quirks & MMC_QUIRK_LENIENT_FN0;
 478}
 479
 480static inline int mmc_blksz_for_byte_mode(const struct mmc_card *c)
 481{
 482        return c->quirks & MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
 483}
 484
 485static inline int mmc_card_disable_cd(const struct mmc_card *c)
 486{
 487        return c->quirks & MMC_QUIRK_DISABLE_CD;
 488}
 489
 490static inline int mmc_card_nonstd_func_interface(const struct mmc_card *c)
 491{
 492        return c->quirks & MMC_QUIRK_NONSTD_FUNC_IF;
 493}
 494
 495static inline int mmc_card_broken_byte_mode_512(const struct mmc_card *c)
 496{
 497        return c->quirks & MMC_QUIRK_BROKEN_BYTE_MODE_512;
 498}
 499
 500static inline int mmc_card_long_read_time(const struct mmc_card *c)
 501{
 502        return c->quirks & MMC_QUIRK_LONG_READ_TIME;
 503}
 504
 505static inline int mmc_card_broken_irq_polling(const struct mmc_card *c)
 506{
 507        return c->quirks & MMC_QUIRK_BROKEN_IRQ_POLLING;
 508}
 509
 510#define mmc_card_name(c)        ((c)->cid.prod_name)
 511#define mmc_card_id(c)          (dev_name(&(c)->dev))
 512
 513#define mmc_dev_to_card(d)      container_of(d, struct mmc_card, dev)
 514
 515/*
 516 * MMC device driver (e.g., Flash card, I/O card...)
 517 */
 518struct mmc_driver {
 519        struct device_driver drv;
 520        int (*probe)(struct mmc_card *);
 521        void (*remove)(struct mmc_card *);
 522        void (*shutdown)(struct mmc_card *);
 523};
 524
 525extern int mmc_register_driver(struct mmc_driver *);
 526extern void mmc_unregister_driver(struct mmc_driver *);
 527
 528extern void mmc_fixup_device(struct mmc_card *card,
 529                             const struct mmc_fixup *table);
 530
 531#endif /* LINUX_MMC_CARD_H */
 532