LCOV - code coverage report
Current view: top level - include/linux/mmc - card.h (source / functions) Hit Total Coverage
Test: Real Lines: 0 1 0.0 %
Date: 2020-10-17 15:46:16 Functions: 0 0 -
Legend: Neither, QEMU, Real, Both Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* SPDX-License-Identifier: GPL-2.0-only */
       2                 :            : /*
       3                 :            :  *  linux/include/linux/mmc/card.h
       4                 :            :  *
       5                 :            :  *  Card driver specific definitions.
       6                 :            :  */
       7                 :            : #ifndef LINUX_MMC_CARD_H
       8                 :            : #define LINUX_MMC_CARD_H
       9                 :            : 
      10                 :            : #include <linux/device.h>
      11                 :            : #include <linux/mod_devicetable.h>
      12                 :            : 
      13                 :            : struct mmc_cid {
      14                 :            :         unsigned int            manfid;
      15                 :            :         char                    prod_name[8];
      16                 :            :         unsigned char           prv;
      17                 :            :         unsigned int            serial;
      18                 :            :         unsigned short          oemid;
      19                 :            :         unsigned short          year;
      20                 :            :         unsigned char           hwrev;
      21                 :            :         unsigned char           fwrev;
      22                 :            :         unsigned char           month;
      23                 :            : };
      24                 :            : 
      25                 :            : struct mmc_csd {
      26                 :            :         unsigned char           structure;
      27                 :            :         unsigned char           mmca_vsn;
      28                 :            :         unsigned short          cmdclass;
      29                 :            :         unsigned short          taac_clks;
      30                 :            :         unsigned int            taac_ns;
      31                 :            :         unsigned int            c_size;
      32                 :            :         unsigned int            r2w_factor;
      33                 :            :         unsigned int            max_dtr;
      34                 :            :         unsigned int            erase_size;             /* In sectors */
      35                 :            :         unsigned int            read_blkbits;
      36                 :            :         unsigned int            write_blkbits;
      37                 :            :         unsigned int            capacity;
      38                 :            :         unsigned int            read_partial:1,
      39                 :            :                                 read_misalign:1,
      40                 :            :                                 write_partial:1,
      41                 :            :                                 write_misalign:1,
      42                 :            :                                 dsr_imp:1;
      43                 :            : };
      44                 :            : 
      45                 :            : struct mmc_ext_csd {
      46                 :            :         u8                      rev;
      47                 :            :         u8                      erase_group_def;
      48                 :            :         u8                      sec_feature_support;
      49                 :            :         u8                      rel_sectors;
      50                 :            :         u8                      rel_param;
      51                 :            :         u8                      part_config;
      52                 :            :         u8                      cache_ctrl;
      53                 :            :         u8                      rst_n_function;
      54                 :            :         u8                      max_packed_writes;
      55                 :            :         u8                      max_packed_reads;
      56                 :            :         u8                      packed_event_en;
      57                 :            :         unsigned int            part_time;              /* Units: ms */
      58                 :            :         unsigned int            sa_timeout;             /* Units: 100ns */
      59                 :            :         unsigned int            generic_cmd6_time;      /* Units: 10ms */
      60                 :            :         unsigned int            power_off_longtime;     /* Units: ms */
      61                 :            :         u8                      power_off_notification; /* state */
      62                 :            :         unsigned int            hs_max_dtr;
      63                 :            :         unsigned int            hs200_max_dtr;
      64                 :            : #define MMC_HIGH_26_MAX_DTR     26000000
      65                 :            : #define MMC_HIGH_52_MAX_DTR     52000000
      66                 :            : #define MMC_HIGH_DDR_MAX_DTR    52000000
      67                 :            : #define MMC_HS200_MAX_DTR       200000000
      68                 :            :         unsigned int            sectors;
      69                 :            :         unsigned int            hc_erase_size;          /* In sectors */
      70                 :            :         unsigned int            hc_erase_timeout;       /* In milliseconds */
      71                 :            :         unsigned int            sec_trim_mult;  /* Secure trim multiplier  */
      72                 :            :         unsigned int            sec_erase_mult; /* Secure erase multiplier */
      73                 :            :         unsigned int            trim_timeout;           /* In milliseconds */
      74                 :            :         bool                    partition_setting_completed;    /* enable bit */
      75                 :            :         unsigned long long      enhanced_area_offset;   /* Units: Byte */
      76                 :            :         unsigned int            enhanced_area_size;     /* Units: KB */
      77                 :            :         unsigned int            cache_size;             /* Units: KB */
      78                 :            :         bool                    hpi_en;                 /* HPI enablebit */
      79                 :            :         bool                    hpi;                    /* HPI support bit */
      80                 :            :         unsigned int            hpi_cmd;                /* cmd used as HPI */
      81                 :            :         bool                    bkops;          /* background support bit */
      82                 :            :         bool                    man_bkops_en;   /* manual bkops enable bit */
      83                 :            :         bool                    auto_bkops_en;  /* auto bkops enable bit */
      84                 :            :         unsigned int            data_sector_size;       /* 512 bytes or 4KB */
      85                 :            :         unsigned int            data_tag_unit_size;     /* DATA TAG UNIT size */
      86                 :            :         unsigned int            boot_ro_lock;           /* ro lock support */
      87                 :            :         bool                    boot_ro_lockable;
      88                 :            :         bool                    ffu_capable;    /* Firmware upgrade support */
      89                 :            :         bool                    cmdq_en;        /* Command Queue enabled */
      90                 :            :         bool                    cmdq_support;   /* Command Queue supported */
      91                 :            :         unsigned int            cmdq_depth;     /* Command Queue depth */
      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                      strobe_support;         /* 184 */
      99                 :            :         u8                      raw_ext_csd_structure;  /* 194 */
     100                 :            :         u8                      raw_card_type;          /* 196 */
     101                 :            :         u8                      raw_driver_strength;    /* 197 */
     102                 :            :         u8                      out_of_int_time;        /* 198 */
     103                 :            :         u8                      raw_pwr_cl_52_195;      /* 200 */
     104                 :            :         u8                      raw_pwr_cl_26_195;      /* 201 */
     105                 :            :         u8                      raw_pwr_cl_52_360;      /* 202 */
     106                 :            :         u8                      raw_pwr_cl_26_360;      /* 203 */
     107                 :            :         u8                      raw_s_a_timeout;        /* 217 */
     108                 :            :         u8                      raw_hc_erase_gap_size;  /* 221 */
     109                 :            :         u8                      raw_erase_timeout_mult; /* 223 */
     110                 :            :         u8                      raw_hc_erase_grp_size;  /* 224 */
     111                 :            :         u8                      raw_sec_trim_mult;      /* 229 */
     112                 :            :         u8                      raw_sec_erase_mult;     /* 230 */
     113                 :            :         u8                      raw_sec_feature_support;/* 231 */
     114                 :            :         u8                      raw_trim_mult;          /* 232 */
     115                 :            :         u8                      raw_pwr_cl_200_195;     /* 236 */
     116                 :            :         u8                      raw_pwr_cl_200_360;     /* 237 */
     117                 :            :         u8                      raw_pwr_cl_ddr_52_195;  /* 238 */
     118                 :            :         u8                      raw_pwr_cl_ddr_52_360;  /* 239 */
     119                 :            :         u8                      raw_pwr_cl_ddr_200_360; /* 253 */
     120                 :            :         u8                      raw_bkops_status;       /* 246 */
     121                 :            :         u8                      raw_sectors[4];         /* 212 - 4 bytes */
     122                 :            :         u8                      pre_eol_info;           /* 267 */
     123                 :            :         u8                      device_life_time_est_typ_a;     /* 268 */
     124                 :            :         u8                      device_life_time_est_typ_b;     /* 269 */
     125                 :            : 
     126                 :            :         unsigned int            feature_support;
     127                 :            : #define MMC_DISCARD_FEATURE     BIT(0)                  /* CMD38 feature */
     128                 :            : };
     129                 :            : 
     130                 :            : struct sd_scr {
     131                 :            :         unsigned char           sda_vsn;
     132                 :            :         unsigned char           sda_spec3;
     133                 :            :         unsigned char           sda_spec4;
     134                 :            :         unsigned char           sda_specx;
     135                 :            :         unsigned char           bus_widths;
     136                 :            : #define SD_SCR_BUS_WIDTH_1      (1<<0)
     137                 :            : #define SD_SCR_BUS_WIDTH_4      (1<<2)
     138                 :            :         unsigned char           cmds;
     139                 :            : #define SD_SCR_CMD20_SUPPORT   (1<<0)
     140                 :            : #define SD_SCR_CMD23_SUPPORT   (1<<1)
     141                 :            : };
     142                 :            : 
     143                 :            : struct sd_ssr {
     144                 :            :         unsigned int            au;                     /* In sectors */
     145                 :            :         unsigned int            erase_timeout;          /* In milliseconds */
     146                 :            :         unsigned int            erase_offset;           /* In milliseconds */
     147                 :            : };
     148                 :            : 
     149                 :            : struct sd_switch_caps {
     150                 :            :         unsigned int            hs_max_dtr;
     151                 :            :         unsigned int            uhs_max_dtr;
     152                 :            : #define HIGH_SPEED_MAX_DTR      50000000
     153                 :            : #define UHS_SDR104_MAX_DTR      208000000
     154                 :            : #define UHS_SDR50_MAX_DTR       100000000
     155                 :            : #define UHS_DDR50_MAX_DTR       50000000
     156                 :            : #define UHS_SDR25_MAX_DTR       UHS_DDR50_MAX_DTR
     157                 :            : #define UHS_SDR12_MAX_DTR       25000000
     158                 :            : #define DEFAULT_SPEED_MAX_DTR   UHS_SDR12_MAX_DTR
     159                 :            :         unsigned int            sd3_bus_mode;
     160                 :            : #define UHS_SDR12_BUS_SPEED     0
     161                 :            : #define HIGH_SPEED_BUS_SPEED    1
     162                 :            : #define UHS_SDR25_BUS_SPEED     1
     163                 :            : #define UHS_SDR50_BUS_SPEED     2
     164                 :            : #define UHS_SDR104_BUS_SPEED    3
     165                 :            : #define UHS_DDR50_BUS_SPEED     4
     166                 :            : 
     167                 :            : #define SD_MODE_HIGH_SPEED      (1 << HIGH_SPEED_BUS_SPEED)
     168                 :            : #define SD_MODE_UHS_SDR12       (1 << UHS_SDR12_BUS_SPEED)
     169                 :            : #define SD_MODE_UHS_SDR25       (1 << UHS_SDR25_BUS_SPEED)
     170                 :            : #define SD_MODE_UHS_SDR50       (1 << UHS_SDR50_BUS_SPEED)
     171                 :            : #define SD_MODE_UHS_SDR104      (1 << UHS_SDR104_BUS_SPEED)
     172                 :            : #define SD_MODE_UHS_DDR50       (1 << UHS_DDR50_BUS_SPEED)
     173                 :            :         unsigned int            sd3_drv_type;
     174                 :            : #define SD_DRIVER_TYPE_B        0x01
     175                 :            : #define SD_DRIVER_TYPE_A        0x02
     176                 :            : #define SD_DRIVER_TYPE_C        0x04
     177                 :            : #define SD_DRIVER_TYPE_D        0x08
     178                 :            :         unsigned int            sd3_curr_limit;
     179                 :            : #define SD_SET_CURRENT_LIMIT_200        0
     180                 :            : #define SD_SET_CURRENT_LIMIT_400        1
     181                 :            : #define SD_SET_CURRENT_LIMIT_600        2
     182                 :            : #define SD_SET_CURRENT_LIMIT_800        3
     183                 :            : #define SD_SET_CURRENT_NO_CHANGE        (-1)
     184                 :            : 
     185                 :            : #define SD_MAX_CURRENT_200      (1 << SD_SET_CURRENT_LIMIT_200)
     186                 :            : #define SD_MAX_CURRENT_400      (1 << SD_SET_CURRENT_LIMIT_400)
     187                 :            : #define SD_MAX_CURRENT_600      (1 << SD_SET_CURRENT_LIMIT_600)
     188                 :            : #define SD_MAX_CURRENT_800      (1 << SD_SET_CURRENT_LIMIT_800)
     189                 :            : };
     190                 :            : 
     191                 :            : struct sdio_cccr {
     192                 :            :         unsigned int            sdio_vsn;
     193                 :            :         unsigned int            sd_vsn;
     194                 :            :         unsigned int            multi_block:1,
     195                 :            :                                 low_speed:1,
     196                 :            :                                 wide_bus:1,
     197                 :            :                                 high_power:1,
     198                 :            :                                 high_speed:1,
     199                 :            :                                 disable_cd:1;
     200                 :            : };
     201                 :            : 
     202                 :            : struct sdio_cis {
     203                 :            :         unsigned short          vendor;
     204                 :            :         unsigned short          device;
     205                 :            :         unsigned short          blksize;
     206                 :            :         unsigned int            max_dtr;
     207                 :            : };
     208                 :            : 
     209                 :            : struct mmc_host;
     210                 :            : struct sdio_func;
     211                 :            : struct sdio_func_tuple;
     212                 :            : struct mmc_queue_req;
     213                 :            : 
     214                 :            : #define SDIO_MAX_FUNCS          7
     215                 :            : 
     216                 :            : /* The number of MMC physical partitions.  These consist of:
     217                 :            :  * boot partitions (2), general purpose partitions (4) and
     218                 :            :  * RPMB partition (1) in MMC v4.4.
     219                 :            :  */
     220                 :            : #define MMC_NUM_BOOT_PARTITION  2
     221                 :            : #define MMC_NUM_GP_PARTITION    4
     222                 :            : #define MMC_NUM_PHY_PARTITION   7
     223                 :            : #define MAX_MMC_PART_NAME_LEN   20
     224                 :            : 
     225                 :            : /*
     226                 :            :  * MMC Physical partitions
     227                 :            :  */
     228                 :            : struct mmc_part {
     229                 :            :         unsigned int    size;   /* partition size (in bytes) */
     230                 :            :         unsigned int    part_cfg;       /* partition type */
     231                 :            :         char    name[MAX_MMC_PART_NAME_LEN];
     232                 :            :         bool    force_ro;       /* to make boot parts RO by default */
     233                 :            :         unsigned int    area_type;
     234                 :            : #define MMC_BLK_DATA_AREA_MAIN  (1<<0)
     235                 :            : #define MMC_BLK_DATA_AREA_BOOT  (1<<1)
     236                 :            : #define MMC_BLK_DATA_AREA_GP    (1<<2)
     237                 :            : #define MMC_BLK_DATA_AREA_RPMB  (1<<3)
     238                 :            : };
     239                 :            : 
     240                 :            : /*
     241                 :            :  * MMC device
     242                 :            :  */
     243                 :            : struct mmc_card {
     244                 :            :         struct mmc_host         *host;          /* the host this device belongs to */
     245                 :            :         struct device           dev;            /* the device */
     246                 :            :         u32                     ocr;            /* the current OCR setting */
     247                 :            :         unsigned int            rca;            /* relative card address of device */
     248                 :            :         unsigned int            type;           /* card type */
     249                 :            : #define MMC_TYPE_MMC            0               /* MMC card */
     250                 :            : #define MMC_TYPE_SD             1               /* SD card */
     251                 :            : #define MMC_TYPE_SDIO           2               /* SDIO card */
     252                 :            : #define MMC_TYPE_SD_COMBO       3               /* SD combo (IO+mem) card */
     253                 :            :         unsigned int            state;          /* (our) card state */
     254                 :            :         unsigned int            quirks;         /* card quirks */
     255                 :            :         unsigned int            quirk_max_rate; /* max rate set by quirks */
     256                 :            : #define MMC_QUIRK_LENIENT_FN0   (1<<0)            /* allow SDIO FN0 writes outside of the VS CCCR range */
     257                 :            : #define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1)      /* use func->cur_blksize */
     258                 :            :                                                 /* for byte mode */
     259                 :            : #define MMC_QUIRK_NONSTD_SDIO   (1<<2)            /* non-standard SDIO card attached */
     260                 :            :                                                 /* (missing CIA registers) */
     261                 :            : #define MMC_QUIRK_NONSTD_FUNC_IF (1<<4)           /* SDIO card has nonstd function interfaces */
     262                 :            : #define MMC_QUIRK_DISABLE_CD    (1<<5)            /* disconnect CD/DAT[3] resistor */
     263                 :            : #define MMC_QUIRK_INAND_CMD38   (1<<6)            /* iNAND devices have broken CMD38 */
     264                 :            : #define MMC_QUIRK_BLK_NO_CMD23  (1<<7)            /* Avoid CMD23 for regular multiblock */
     265                 :            : #define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8)     /* Avoid sending 512 bytes in */
     266                 :            :                                                 /* byte mode */
     267                 :            : #define MMC_QUIRK_LONG_READ_TIME (1<<9)           /* Data read time > CSD says */
     268                 :            : #define MMC_QUIRK_SEC_ERASE_TRIM_BROKEN (1<<10)   /* Skip secure for erase/trim */
     269                 :            : #define MMC_QUIRK_BROKEN_IRQ_POLLING    (1<<11)   /* Polling SDIO_CCCR_INTx could create a fake interrupt */
     270                 :            : #define MMC_QUIRK_TRIM_BROKEN   (1<<12)           /* Skip trim */
     271                 :            : #define MMC_QUIRK_BROKEN_HPI    (1<<13)           /* Disable broken HPI support */
     272                 :            : 
     273                 :            : #define MMC_QUIRK_ERASE_BROKEN  (1<<31)           /* Skip erase */
     274                 :            : 
     275                 :            :         bool                    reenable_cmdq;  /* Re-enable Command Queue */
     276                 :            : 
     277                 :            :         unsigned int            erase_size;     /* erase size in sectors */
     278                 :            :         unsigned int            erase_shift;    /* if erase unit is power 2 */
     279                 :            :         unsigned int            pref_erase;     /* in sectors */
     280                 :            :         unsigned int            eg_boundary;    /* don't cross erase-group boundaries */
     281                 :            :         unsigned int            erase_arg;      /* erase / trim / discard */
     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                 :            :         u32                     raw_ssr[16];    /* raw card SSR */
     288                 :            :         struct mmc_cid          cid;            /* card identification */
     289                 :            :         struct mmc_csd          csd;            /* card specific */
     290                 :            :         struct mmc_ext_csd      ext_csd;        /* mmc v4 extended card specific */
     291                 :            :         struct sd_scr           scr;            /* extra SD information */
     292                 :            :         struct sd_ssr           ssr;            /* yet more SD information */
     293                 :            :         struct sd_switch_caps   sw_caps;        /* switch (CMD6) caps */
     294                 :            : 
     295                 :            :         unsigned int            sdio_funcs;     /* number of SDIO functions */
     296                 :            :         atomic_t                sdio_funcs_probed; /* number of probed SDIO funcs */
     297                 :            :         struct sdio_cccr        cccr;           /* common card info */
     298                 :            :         struct sdio_cis         cis;            /* common tuple info */
     299                 :            :         struct sdio_func        *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */
     300                 :            :         struct sdio_func        *sdio_single_irq; /* SDIO function when only one IRQ active */
     301                 :            :         unsigned                num_info;       /* number of info strings */
     302                 :            :         const char              **info;         /* info strings */
     303                 :            :         struct sdio_func_tuple  *tuples;        /* unknown common tuples */
     304                 :            : 
     305                 :            :         unsigned int            sd_bus_speed;   /* Bus Speed Mode set for the card */
     306                 :            :         unsigned int            mmc_avail_type; /* supported device type by both host and card */
     307                 :            :         unsigned int            drive_strength; /* for UHS-I, HS200 or HS400 */
     308                 :            : 
     309                 :            :         struct dentry           *debugfs_root;
     310                 :            :         struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */
     311                 :            :         unsigned int    nr_parts;
     312                 :            : 
     313                 :            :         unsigned int            bouncesz;       /* Bounce buffer size */
     314                 :            :         struct workqueue_struct *complete_wq;   /* Private workqueue */
     315                 :            : };
     316                 :            : 
     317                 :            : static inline bool mmc_large_sector(struct mmc_card *card)
     318                 :            : {
     319                 :          0 :         return card->ext_csd.data_sector_size == 4096;
     320                 :            : }
     321                 :            : 
     322                 :            : bool mmc_card_is_blockaddr(struct mmc_card *card);
     323                 :            : 
     324                 :            : #define mmc_card_mmc(c)         ((c)->type == MMC_TYPE_MMC)
     325                 :            : #define mmc_card_sd(c)          ((c)->type == MMC_TYPE_SD)
     326                 :            : #define mmc_card_sdio(c)        ((c)->type == MMC_TYPE_SDIO)
     327                 :            : 
     328                 :            : #endif /* LINUX_MMC_CARD_H */
    

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