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                      raw_driver_strength;    /* 197 */
 101        u8                      out_of_int_time;        /* 198 */
 102        u8                      raw_pwr_cl_52_195;      /* 200 */
 103        u8                      raw_pwr_cl_26_195;      /* 201 */
 104        u8                      raw_pwr_cl_52_360;      /* 202 */
 105        u8                      raw_pwr_cl_26_360;      /* 203 */
 106        u8                      raw_s_a_timeout;        /* 217 */
 107        u8                      raw_hc_erase_gap_size;  /* 221 */
 108        u8                      raw_erase_timeout_mult; /* 223 */
 109        u8                      raw_hc_erase_grp_size;  /* 224 */
 110        u8                      raw_sec_trim_mult;      /* 229 */
 111        u8                      raw_sec_erase_mult;     /* 230 */
 112        u8                      raw_sec_feature_support;/* 231 */
 113        u8                      raw_trim_mult;          /* 232 */
 114        u8                      raw_pwr_cl_200_195;     /* 236 */
 115        u8                      raw_pwr_cl_200_360;     /* 237 */
 116        u8                      raw_pwr_cl_ddr_52_195;  /* 238 */
 117        u8                      raw_pwr_cl_ddr_52_360;  /* 239 */
 118        u8                      raw_pwr_cl_ddr_200_360; /* 253 */
 119        u8                      raw_bkops_status;       /* 246 */
 120        u8                      raw_sectors[4];         /* 212 - 4 bytes */
 121
 122        unsigned int            feature_support;
 123#define MMC_DISCARD_FEATURE     BIT(0)                  /* CMD38 feature */
 124};
 125
 126struct sd_scr {
 127        unsigned char           sda_vsn;
 128        unsigned char           sda_spec3;
 129        unsigned char           bus_widths;
 130#define SD_SCR_BUS_WIDTH_1      (1<<0)
 131#define SD_SCR_BUS_WIDTH_4      (1<<2)
 132        unsigned char           cmds;
 133#define SD_SCR_CMD20_SUPPORT   (1<<0)
 134#define SD_SCR_CMD23_SUPPORT   (1<<1)
 135};
 136
 137struct sd_ssr {
 138        unsigned int            au;                     /* In sectors */
 139        unsigned int            erase_timeout;          /* In milliseconds */
 140        unsigned int            erase_offset;           /* In milliseconds */
 141};
 142
 143struct sd_switch_caps {
 144        unsigned int            hs_max_dtr;
 145        unsigned int            uhs_max_dtr;
 146#define HIGH_SPEED_MAX_DTR      50000000
 147#define UHS_SDR104_MAX_DTR      208000000
 148#define UHS_SDR50_MAX_DTR       100000000
 149#define UHS_DDR50_MAX_DTR       50000000
 150#define UHS_SDR25_MAX_DTR       UHS_DDR50_MAX_DTR
 151#define UHS_SDR12_MAX_DTR       25000000
 152        unsigned int            sd3_bus_mode;
 153#define UHS_SDR12_BUS_SPEED     0
 154#define HIGH_SPEED_BUS_SPEED    1
 155#define UHS_SDR25_BUS_SPEED     1
 156#define UHS_SDR50_BUS_SPEED     2
 157#define UHS_SDR104_BUS_SPEED    3
 158#define UHS_DDR50_BUS_SPEED     4
 159
 160#define SD_MODE_HIGH_SPEED      (1 << HIGH_SPEED_BUS_SPEED)
 161#define SD_MODE_UHS_SDR12       (1 << UHS_SDR12_BUS_SPEED)
 162#define SD_MODE_UHS_SDR25       (1 << UHS_SDR25_BUS_SPEED)
 163#define SD_MODE_UHS_SDR50       (1 << UHS_SDR50_BUS_SPEED)
 164#define SD_MODE_UHS_SDR104      (1 << UHS_SDR104_BUS_SPEED)
 165#define SD_MODE_UHS_DDR50       (1 << UHS_DDR50_BUS_SPEED)
 166        unsigned int            sd3_drv_type;
 167#define SD_DRIVER_TYPE_B        0x01
 168#define SD_DRIVER_TYPE_A        0x02
 169#define SD_DRIVER_TYPE_C        0x04
 170#define SD_DRIVER_TYPE_D        0x08
 171        unsigned int            sd3_curr_limit;
 172#define SD_SET_CURRENT_LIMIT_200        0
 173#define SD_SET_CURRENT_LIMIT_400        1
 174#define SD_SET_CURRENT_LIMIT_600        2
 175#define SD_SET_CURRENT_LIMIT_800        3
 176#define SD_SET_CURRENT_NO_CHANGE        (-1)
 177
 178#define SD_MAX_CURRENT_200      (1 << SD_SET_CURRENT_LIMIT_200)
 179#define SD_MAX_CURRENT_400      (1 << SD_SET_CURRENT_LIMIT_400)
 180#define SD_MAX_CURRENT_600      (1 << SD_SET_CURRENT_LIMIT_600)
 181#define SD_MAX_CURRENT_800      (1 << SD_SET_CURRENT_LIMIT_800)
 182};
 183
 184struct sdio_cccr {
 185        unsigned int            sdio_vsn;
 186        unsigned int            sd_vsn;
 187        unsigned int            multi_block:1,
 188                                low_speed:1,
 189                                wide_bus:1,
 190                                high_power:1,
 191                                high_speed:1,
 192                                disable_cd:1;
 193};
 194
 195struct sdio_cis {
 196        unsigned short          vendor;
 197        unsigned short          device;
 198        unsigned short          blksize;
 199        unsigned int            max_dtr;
 200};
 201
 202struct mmc_host;
 203struct mmc_ios;
 204struct sdio_func;
 205struct sdio_func_tuple;
 206
 207#define SDIO_MAX_FUNCS          7
 208
 209enum mmc_blk_status {
 210        MMC_BLK_SUCCESS = 0,
 211        MMC_BLK_PARTIAL,
 212        MMC_BLK_CMD_ERR,
 213        MMC_BLK_RETRY,
 214        MMC_BLK_ABORT,
 215        MMC_BLK_DATA_ERR,
 216        MMC_BLK_ECC_ERR,
 217        MMC_BLK_NOMEDIUM,
 218        MMC_BLK_NEW_REQUEST,
 219};
 220
 221/* The number of MMC physical partitions.  These consist of:
 222 * boot partitions (2), general purpose partitions (4) and
 223 * RPMB partition (1) in MMC v4.4.
 224 */
 225#define MMC_NUM_BOOT_PARTITION  2
 226#define MMC_NUM_GP_PARTITION    4
 227#define MMC_NUM_PHY_PARTITION   7
 228#define MAX_MMC_PART_NAME_LEN   20
 229
 230/*
 231 * MMC Physical partitions
 232 */
 233struct mmc_part {
 234        unsigned int    size;   /* partition size (in bytes) */
 235        unsigned int    part_cfg;       /* partition type */
 236        char    name[MAX_MMC_PART_NAME_LEN];
 237        bool    force_ro;       /* to make boot parts RO by default */
 238        unsigned int    area_type;
 239#define MMC_BLK_DATA_AREA_MAIN  (1<<0)
 240#define MMC_BLK_DATA_AREA_BOOT  (1<<1)
 241#define MMC_BLK_DATA_AREA_GP    (1<<2)
 242#define MMC_BLK_DATA_AREA_RPMB  (1<<3)
 243};
 244
 245/*
 246 * MMC device
 247 */
 248struct mmc_card {
 249        struct mmc_host         *host;          /* the host this device belongs to */
 250        struct device           dev;            /* the device */
 251        u32                     ocr;            /* the current OCR setting */
 252        unsigned int            rca;            /* relative card address of device */
 253        unsigned int            type;           /* card type */
 254#define MMC_TYPE_MMC            0               /* MMC card */
 255#define MMC_TYPE_SD             1               /* SD card */
 256#define MMC_TYPE_SDIO           2               /* SDIO card */
 257#define MMC_TYPE_SD_COMBO       3               /* SD combo (IO+mem) card */
 258        unsigned int            state;          /* (our) card state */
 259#define MMC_STATE_PRESENT       (1<<0)          /* present in sysfs */
 260#define MMC_STATE_READONLY      (1<<1)          /* card is read-only */
 261#define MMC_STATE_BLOCKADDR     (1<<2)          /* card uses block-addressing */
 262#define MMC_CARD_SDXC           (1<<3)          /* card is SDXC */
 263#define MMC_CARD_REMOVED        (1<<4)          /* card has been removed */
 264#define MMC_STATE_DOING_BKOPS   (1<<5)          /* card is doing BKOPS */
 265#define MMC_STATE_SUSPENDED     (1<<6)          /* card is suspended */
 266        unsigned int            quirks;         /* card quirks */
 267#define MMC_QUIRK_LENIENT_FN0   (1<<0)          /* allow SDIO FN0 writes outside of the VS CCCR range */
 268#define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1)    /* use func->cur_blksize */
 269                                                /* for byte mode */
 270#define MMC_QUIRK_NONSTD_SDIO   (1<<2)          /* non-standard SDIO card attached */
 271                                                /* (missing CIA registers) */
 272#define MMC_QUIRK_BROKEN_CLK_GATING (1<<3)      /* clock gating the sdio bus will make card fail */
 273#define MMC_QUIRK_NONSTD_FUNC_IF (1<<4)         /* SDIO card has nonstd function interfaces */
 274#define MMC_QUIRK_DISABLE_CD    (1<<5)          /* disconnect CD/DAT[3] resistor */
 275#define MMC_QUIRK_INAND_CMD38   (1<<6)          /* iNAND devices have broken CMD38 */
 276#define MMC_QUIRK_BLK_NO_CMD23  (1<<7)          /* Avoid CMD23 for regular multiblock */
 277#define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8)   /* Avoid sending 512 bytes in */
 278                                                /* byte mode */
 279#define MMC_QUIRK_LONG_READ_TIME (1<<9)         /* Data read time > CSD says */
 280#define MMC_QUIRK_SEC_ERASE_TRIM_BROKEN (1<<10) /* Skip secure for erase/trim */
 281#define MMC_QUIRK_BROKEN_IRQ_POLLING    (1<<11) /* Polling SDIO_CCCR_INTx could create a fake interrupt */
 282#define MMC_QUIRK_TRIM_BROKEN   (1<<12)         /* Skip trim */
 283
 284
 285        unsigned int            erase_size;     /* erase size in sectors */
 286        unsigned int            erase_shift;    /* if erase unit is power 2 */
 287        unsigned int            pref_erase;     /* in sectors */
 288        unsigned int            eg_boundary;    /* don't cross erase-group boundaries */
 289        u8                      erased_byte;    /* value of erased bytes */
 290
 291        u32                     raw_cid[4];     /* raw card CID */
 292        u32                     raw_csd[4];     /* raw card CSD */
 293        u32                     raw_scr[2];     /* raw card SCR */
 294        struct mmc_cid          cid;            /* card identification */
 295        struct mmc_csd          csd;            /* card specific */
 296        struct mmc_ext_csd      ext_csd;        /* mmc v4 extended card specific */
 297        struct sd_scr           scr;            /* extra SD information */
 298        struct sd_ssr           ssr;            /* yet more SD information */
 299        struct sd_switch_caps   sw_caps;        /* switch (CMD6) caps */
 300
 301        unsigned int            sdio_funcs;     /* number of SDIO functions */
 302        struct sdio_cccr        cccr;           /* common card info */
 303        struct sdio_cis         cis;            /* common tuple info */
 304        struct sdio_func        *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */
 305        struct sdio_func        *sdio_single_irq; /* SDIO function when only one IRQ active */
 306        unsigned                num_info;       /* number of info strings */
 307        const char              **info;         /* info strings */
 308        struct sdio_func_tuple  *tuples;        /* unknown common tuples */
 309
 310        unsigned int            sd_bus_speed;   /* Bus Speed Mode set for the card */
 311        unsigned int            mmc_avail_type; /* supported device type by both host and card */
 312        unsigned int            drive_strength; /* for UHS-I, HS200 or HS400 */
 313
 314        struct dentry           *debugfs_root;
 315        struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */
 316        unsigned int    nr_parts;
 317};
 318
 319/*
 320 * This function fill contents in mmc_part.
 321 */
 322static inline void mmc_part_add(struct mmc_card *card, unsigned int size,
 323                        unsigned int part_cfg, char *name, int idx, bool ro,
 324                        int area_type)
 325{
 326        card->part[card->nr_parts].size = size;
 327        card->part[card->nr_parts].part_cfg = part_cfg;
 328        sprintf(card->part[card->nr_parts].name, name, idx);
 329        card->part[card->nr_parts].force_ro = ro;
 330        card->part[card->nr_parts].area_type = area_type;
 331        card->nr_parts++;
 332}
 333
 334static inline bool mmc_large_sector(struct mmc_card *card)
 335{
 336        return card->ext_csd.data_sector_size == 4096;
 337}
 338
 339/*
 340 *  The world is not perfect and supplies us with broken mmc/sdio devices.
 341 *  For at least some of these bugs we need a work-around.
 342 */
 343
 344struct mmc_fixup {
 345        /* CID-specific fields. */
 346        const char *name;
 347
 348        /* Valid revision range */
 349        u64 rev_start, rev_end;
 350
 351        unsigned int manfid;
 352        unsigned short oemid;
 353
 354        /* SDIO-specfic fields. You can use SDIO_ANY_ID here of course */
 355        u16 cis_vendor, cis_device;
 356
 357        void (*vendor_fixup)(struct mmc_card *card, int data);
 358        int data;
 359};
 360
 361#define CID_MANFID_ANY (-1u)
 362#define CID_OEMID_ANY ((unsigned short) -1)
 363#define CID_NAME_ANY (NULL)
 364
 365#define END_FIXUP { NULL }
 366
 367#define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end,        \
 368                   _cis_vendor, _cis_device,                            \
 369                   _fixup, _data)                                       \
 370        {                                                  \
 371                .name = (_name),                           \
 372                .manfid = (_manfid),                       \
 373                .oemid = (_oemid),                         \
 374                .rev_start = (_rev_start),                 \
 375                .rev_end = (_rev_end),                     \
 376                .cis_vendor = (_cis_vendor),               \
 377                .cis_device = (_cis_device),               \
 378                .vendor_fixup = (_fixup),                  \
 379                .data = (_data),                           \
 380         }
 381
 382#define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end,     \
 383                      _fixup, _data)                                    \
 384        _FIXUP_EXT(_name, _manfid,                                      \
 385                   _oemid, _rev_start, _rev_end,                        \
 386                   SDIO_ANY_ID, SDIO_ANY_ID,                            \
 387                   _fixup, _data)                                       \
 388
 389#define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \
 390        MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data)
 391
 392#define SDIO_FIXUP(_vendor, _device, _fixup, _data)                     \
 393        _FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY,                        \
 394                    CID_OEMID_ANY, 0, -1ull,                            \
 395                   _vendor, _device,                                    \
 396                   _fixup, _data)                                       \
 397
 398#define cid_rev(hwrev, fwrev, year, month)      \
 399        (((u64) hwrev) << 40 |                  \
 400         ((u64) fwrev) << 32 |                  \
 401         ((u64) year) << 16 |                   \
 402         ((u64) month))
 403
 404#define cid_rev_card(card)                \
 405        cid_rev(card->cid.hwrev,          \
 406                    card->cid.fwrev,      \
 407                    card->cid.year,       \
 408                    card->cid.month)
 409
 410/*
 411 * Unconditionally quirk add/remove.
 412 */
 413
 414static inline void __maybe_unused add_quirk(struct mmc_card *card, int data)
 415{
 416        card->quirks |= data;
 417}
 418
 419static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
 420{
 421        card->quirks &= ~data;
 422}
 423
 424#define mmc_card_mmc(c)         ((c)->type == MMC_TYPE_MMC)
 425#define mmc_card_sd(c)          ((c)->type == MMC_TYPE_SD)
 426#define mmc_card_sdio(c)        ((c)->type == MMC_TYPE_SDIO)
 427
 428#define mmc_card_present(c)     ((c)->state & MMC_STATE_PRESENT)
 429#define mmc_card_readonly(c)    ((c)->state & MMC_STATE_READONLY)
 430#define mmc_card_blockaddr(c)   ((c)->state & MMC_STATE_BLOCKADDR)
 431#define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
 432#define mmc_card_removed(c)     ((c) && ((c)->state & MMC_CARD_REMOVED))
 433#define mmc_card_doing_bkops(c) ((c)->state & MMC_STATE_DOING_BKOPS)
 434#define mmc_card_suspended(c)   ((c)->state & MMC_STATE_SUSPENDED)
 435
 436#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
 437#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
 438#define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
 439#define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
 440#define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
 441#define mmc_card_set_doing_bkops(c)     ((c)->state |= MMC_STATE_DOING_BKOPS)
 442#define mmc_card_clr_doing_bkops(c)     ((c)->state &= ~MMC_STATE_DOING_BKOPS)
 443#define mmc_card_set_suspended(c) ((c)->state |= MMC_STATE_SUSPENDED)
 444#define mmc_card_clr_suspended(c) ((c)->state &= ~MMC_STATE_SUSPENDED)
 445
 446/*
 447 * Quirk add/remove for MMC products.
 448 */
 449
 450static inline void __maybe_unused add_quirk_mmc(struct mmc_card *card, int data)
 451{
 452        if (mmc_card_mmc(card))
 453                card->quirks |= data;
 454}
 455
 456static inline void __maybe_unused remove_quirk_mmc(struct mmc_card *card,
 457                                                   int data)
 458{
 459        if (mmc_card_mmc(card))
 460                card->quirks &= ~data;
 461}
 462
 463/*
 464 * Quirk add/remove for SD products.
 465 */
 466
 467static inline void __maybe_unused add_quirk_sd(struct mmc_card *card, int data)
 468{
 469        if (mmc_card_sd(card))
 470                card->quirks |= data;
 471}
 472
 473static inline void __maybe_unused remove_quirk_sd(struct mmc_card *card,
 474                                                   int data)
 475{
 476        if (mmc_card_sd(card))
 477                card->quirks &= ~data;
 478}
 479
 480static inline int mmc_card_lenient_fn0(const struct mmc_card *c)
 481{
 482        return c->quirks & MMC_QUIRK_LENIENT_FN0;
 483}
 484
 485static inline int mmc_blksz_for_byte_mode(const struct mmc_card *c)
 486{
 487        return c->quirks & MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
 488}
 489
 490static inline int mmc_card_disable_cd(const struct mmc_card *c)
 491{
 492        return c->quirks & MMC_QUIRK_DISABLE_CD;
 493}
 494
 495static inline int mmc_card_nonstd_func_interface(const struct mmc_card *c)
 496{
 497        return c->quirks & MMC_QUIRK_NONSTD_FUNC_IF;
 498}
 499
 500static inline int mmc_card_broken_byte_mode_512(const struct mmc_card *c)
 501{
 502        return c->quirks & MMC_QUIRK_BROKEN_BYTE_MODE_512;
 503}
 504
 505static inline int mmc_card_long_read_time(const struct mmc_card *c)
 506{
 507        return c->quirks & MMC_QUIRK_LONG_READ_TIME;
 508}
 509
 510static inline int mmc_card_broken_irq_polling(const struct mmc_card *c)
 511{
 512        return c->quirks & MMC_QUIRK_BROKEN_IRQ_POLLING;
 513}
 514
 515#define mmc_card_name(c)        ((c)->cid.prod_name)
 516#define mmc_card_id(c)          (dev_name(&(c)->dev))
 517
 518#define mmc_dev_to_card(d)      container_of(d, struct mmc_card, dev)
 519
 520/*
 521 * MMC device driver (e.g., Flash card, I/O card...)
 522 */
 523struct mmc_driver {
 524        struct device_driver drv;
 525        int (*probe)(struct mmc_card *);
 526        void (*remove)(struct mmc_card *);
 527        void (*shutdown)(struct mmc_card *);
 528};
 529
 530extern int mmc_register_driver(struct mmc_driver *);
 531extern void mmc_unregister_driver(struct mmc_driver *);
 532
 533extern void mmc_fixup_device(struct mmc_card *card,
 534                             const struct mmc_fixup *table);
 535
 536#endif /* LINUX_MMC_CARD_H */
 537