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/mod_devicetable.h>
  15
  16 struct mmc_cid {
  17         unsigned int            manfid;
  18         char                    prod_name[8];
  19         unsigned char           prv;
  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          taac_clks;
  33         unsigned int            taac_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                                 dsr_imp:1;
  46 };
  47
  48 struct mmc_ext_csd {
  49         u8                      rev;
  50         u8                      erase_group_def;
  51         u8                      sec_feature_support;
  52         u8                      rel_sectors;
  53         u8                      rel_param;
  54         u8                      part_config;
  55         u8                      cache_ctrl;
  56         u8                      rst_n_function;
  57         u8                      max_packed_writes;
  58         u8                      max_packed_reads;
  59         u8                      packed_event_en;
  60         unsigned int            part_time;              /* Units: ms */
  61         unsigned int            sa_timeout;             /* Units: 100ns */
  62         unsigned int            generic_cmd6_time;      /* Units: 10ms */
  63         unsigned int            power_off_longtime;     /* Units: ms */
  64         u8                      power_off_notification; /* state */
  65         unsigned int            hs_max_dtr;
  66         unsigned int            hs200_max_dtr;
  67 #define MMC_HIGH_26_MAX_DTR     26000000
  68 #define MMC_HIGH_52_MAX_DTR     52000000
  69 #define MMC_HIGH_DDR_MAX_DTR    52000000
  70 #define MMC_HS200_MAX_DTR       200000000
  71         unsigned int            sectors;
  72         unsigned int            hc_erase_size;          /* In sectors */
  73         unsigned int            hc_erase_timeout;       /* In milliseconds */
  74         unsigned int            sec_trim_mult;  /* Secure trim multiplier  */
  75         unsigned int            sec_erase_mult; /* Secure erase multiplier */
  76         unsigned int            trim_timeout;           /* In milliseconds */
  77         bool                    partition_setting_completed;    /* enable bit */
  78         unsigned long long      enhanced_area_offset;   /* Units: Byte */
  79         unsigned int            enhanced_area_size;     /* Units: KB */
  80         unsigned int            cache_size;             /* Units: KB */
  81         bool                    hpi_en;                 /* HPI enablebit */
  82         bool                    hpi;                    /* HPI support bit */
  83         unsigned int            hpi_cmd;                /* cmd used as HPI */
  84         bool                    bkops;          /* background support bit */
  85         bool                    man_bkops_en;   /* manual bkops enable bit */
  86         bool                    auto_bkops_en;  /* auto 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         bool                    cmdq_en;        /* Command Queue enabled */
  93         bool                    cmdq_support;   /* Command Queue supported */
  94         unsigned int            cmdq_depth;     /* Command Queue depth */
  95 #define MMC_FIRMWARE_LEN 8
  96         u8                      fwrev[MMC_FIRMWARE_LEN];  /* FW version */
  97         u8                      raw_exception_status;   /* 54 */
  98         u8                      raw_partition_support;  /* 160 */
  99         u8                      raw_rpmb_size_mult;     /* 168 */
 100         u8                      raw_erased_mem_count;   /* 181 */
 101         u8                      strobe_support;         /* 184 */
 102         u8                      raw_ext_csd_structure;  /* 194 */
 103         u8                      raw_card_type;          /* 196 */
 104         u8                      raw_driver_strength;    /* 197 */
 105         u8                      out_of_int_time;        /* 198 */
 106         u8                      raw_pwr_cl_52_195;      /* 200 */
 107         u8                      raw_pwr_cl_26_195;      /* 201 */
 108         u8                      raw_pwr_cl_52_360;      /* 202 */
 109         u8                      raw_pwr_cl_26_360;      /* 203 */
 110         u8                      raw_s_a_timeout;        /* 217 */
 111         u8                      raw_hc_erase_gap_size;  /* 221 */
 112         u8                      raw_erase_timeout_mult; /* 223 */
 113         u8                      raw_hc_erase_grp_size;  /* 224 */
 114         u8                      raw_sec_trim_mult;      /* 229 */
 115         u8                      raw_sec_erase_mult;     /* 230 */
 116         u8                      raw_sec_feature_support;/* 231 */
 117         u8                      raw_trim_mult;          /* 232 */
 118         u8                      raw_pwr_cl_200_195;     /* 236 */
 119         u8                      raw_pwr_cl_200_360;     /* 237 */
 120         u8                      raw_pwr_cl_ddr_52_195;  /* 238 */
 121         u8                      raw_pwr_cl_ddr_52_360;  /* 239 */
 122         u8                      raw_pwr_cl_ddr_200_360; /* 253 */
 123         u8                      raw_bkops_status;       /* 246 */
 124         u8                      raw_sectors[4];         /* 212 - 4 bytes */
 125         u8                      pre_eol_info;           /* 267 */
 126         u8                      device_life_time_est_typ_a;     /* 268 */
 127         u8                      device_life_time_est_typ_b;     /* 269 */
 128
 129         unsigned int            feature_support;
 130 #define MMC_DISCARD_FEATURE     BIT(0)                  /* CMD38 feature */
 131 };
 132
 133 struct sd_scr {
 134         unsigned char           sda_vsn;
 135         unsigned char           sda_spec3;
 136         unsigned char           sda_spec4;
 137         unsigned char           sda_specx;
 138         unsigned char           bus_widths;
 139 #define SD_SCR_BUS_WIDTH_1      (1<<0)
 140 #define SD_SCR_BUS_WIDTH_4      (1<<2)
 141         unsigned char           cmds;
 142 #define SD_SCR_CMD20_SUPPORT   (1<<0)
 143 #define SD_SCR_CMD23_SUPPORT   (1<<1)
 144 };
 145
 146 struct sd_ssr {
 147         unsigned int            au;                     /* In sectors */
 148         unsigned int            erase_timeout;          /* In milliseconds */
 149         unsigned int            erase_offset;           /* In milliseconds */
 150 };
 151
 152 struct sd_switch_caps {
 153         unsigned int            hs_max_dtr;
 154         unsigned int            uhs_max_dtr;
 155 #define HIGH_SPEED_MAX_DTR      50000000
 156 #define UHS_SDR104_MAX_DTR      208000000
 157 #define UHS_SDR50_MAX_DTR       100000000
 158 #define UHS_DDR50_MAX_DTR       50000000
 159 #define UHS_SDR25_MAX_DTR       UHS_DDR50_MAX_DTR
 160 #define UHS_SDR12_MAX_DTR       25000000
 161 #define DEFAULT_SPEED_MAX_DTR   UHS_SDR12_MAX_DTR
 162         unsigned int            sd3_bus_mode;
 163 #define UHS_SDR12_BUS_SPEED     0
 164 #define HIGH_SPEED_BUS_SPEED    1
 165 #define UHS_SDR25_BUS_SPEED     1
 166 #define UHS_SDR50_BUS_SPEED     2
 167 #define UHS_SDR104_BUS_SPEED    3
 168 #define UHS_DDR50_BUS_SPEED     4
 169
 170 #define SD_MODE_HIGH_SPEED      (1 << HIGH_SPEED_BUS_SPEED)
 171 #define SD_MODE_UHS_SDR12       (1 << UHS_SDR12_BUS_SPEED)
 172 #define SD_MODE_UHS_SDR25       (1 << UHS_SDR25_BUS_SPEED)
 173 #define SD_MODE_UHS_SDR50       (1 << UHS_SDR50_BUS_SPEED)
 174 #define SD_MODE_UHS_SDR104      (1 << UHS_SDR104_BUS_SPEED)
 175 #define SD_MODE_UHS_DDR50       (1 << UHS_DDR50_BUS_SPEED)
 176         unsigned int            sd3_drv_type;
 177 #define SD_DRIVER_TYPE_B        0x01
 178 #define SD_DRIVER_TYPE_A        0x02
 179 #define SD_DRIVER_TYPE_C        0x04
 180 #define SD_DRIVER_TYPE_D        0x08
 181         unsigned int            sd3_curr_limit;
 182 #define SD_SET_CURRENT_LIMIT_200        0
 183 #define SD_SET_CURRENT_LIMIT_400        1
 184 #define SD_SET_CURRENT_LIMIT_600        2
 185 #define SD_SET_CURRENT_LIMIT_800        3
 186 #define SD_SET_CURRENT_NO_CHANGE        (-1)
 187
 188 #define SD_MAX_CURRENT_200      (1 << SD_SET_CURRENT_LIMIT_200)
 189 #define SD_MAX_CURRENT_400      (1 << SD_SET_CURRENT_LIMIT_400)
 190 #define SD_MAX_CURRENT_600      (1 << SD_SET_CURRENT_LIMIT_600)
 191 #define SD_MAX_CURRENT_800      (1 << SD_SET_CURRENT_LIMIT_800)
 192 };
 193
 194 struct sdio_cccr {
 195         unsigned int            sdio_vsn;
 196         unsigned int            sd_vsn;
 197         unsigned int            multi_block:1,
 198                                 low_speed:1,
 199                                 wide_bus:1,
 200                                 high_power:1,
 201                                 high_speed:1,
 202                                 disable_cd:1;
 203 };
 204
 205 struct sdio_cis {
 206         unsigned short          vendor;
 207         unsigned short          device;
 208         unsigned short          blksize;
 209         unsigned int            max_dtr;
 210 };
 211
 212 struct mmc_host;
 213 struct sdio_func;
 214 struct sdio_func_tuple;
 215 struct mmc_queue_req;
 216
 217 #define SDIO_MAX_FUNCS          7
 218
 219 /* The number of MMC physical partitions.  These consist of:
 220  * boot partitions (2), general purpose partitions (4) and
 221  * RPMB partition (1) in MMC v4.4.
 222  */
 223 #define MMC_NUM_BOOT_PARTITION  2
 224 #define MMC_NUM_GP_PARTITION    4
 225 #define MMC_NUM_PHY_PARTITION   7
 226 #define MAX_MMC_PART_NAME_LEN   20
 227
 228 /*
 229  * MMC Physical partitions
 230  */
 231 struct mmc_part {
 232         unsigned int    size;   /* partition size (in bytes) */
 233         unsigned int    part_cfg;       /* partition type */
 234         char    name[MAX_MMC_PART_NAME_LEN];
 235         bool    force_ro;       /* to make boot parts RO by default */
 236         unsigned int    area_type;
 237 #define MMC_BLK_DATA_AREA_MAIN  (1<<0)
 238 #define MMC_BLK_DATA_AREA_BOOT  (1<<1)
 239 #define MMC_BLK_DATA_AREA_GP    (1<<2)
 240 #define MMC_BLK_DATA_AREA_RPMB  (1<<3)
 241 };
 242
 243 /*
 244  * MMC device
 245  */
 246 struct mmc_card {
 247         struct mmc_host         *host;          /* the host this device belongs to */
 248         struct device           dev;            /* the device */
 249         u32                     ocr;            /* the current OCR setting */
 250         unsigned int            rca;            /* relative card address of device */
 251         unsigned int            type;           /* card type */
 252 #define MMC_TYPE_MMC            0               /* MMC card */
 253 #define MMC_TYPE_SD             1               /* SD card */
 254 #define MMC_TYPE_SDIO           2               /* SDIO card */
 255 #define MMC_TYPE_SD_COMBO       3               /* SD combo (IO+mem) card */
 256         unsigned int            state;          /* (our) card state */
 257         unsigned int            quirks;         /* card quirks */
 258         unsigned int            quirk_max_rate; /* max rate set by quirks */
 259 #define MMC_QUIRK_LENIENT_FN0   (1<<0)          /* allow SDIO FN0 writes outside of the VS CCCR range */
 260 #define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1)    /* use func->cur_blksize */
 261                                                 /* for byte mode */
 262 #define MMC_QUIRK_NONSTD_SDIO   (1<<2)          /* non-standard SDIO card attached */
 263                                                 /* (missing CIA registers) */
 264 #define MMC_QUIRK_NONSTD_FUNC_IF (1<<4)         /* SDIO card has nonstd function interfaces */
 265 #define MMC_QUIRK_DISABLE_CD    (1<<5)          /* disconnect CD/DAT[3] resistor */
 266 #define MMC_QUIRK_INAND_CMD38   (1<<6)          /* iNAND devices have broken CMD38 */
 267 #define MMC_QUIRK_BLK_NO_CMD23  (1<<7)          /* Avoid CMD23 for regular multiblock */
 268 #define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8)   /* Avoid sending 512 bytes in */
 269                                                 /* byte mode */
 270 #define MMC_QUIRK_LONG_READ_TIME (1<<9)         /* Data read time > CSD says */
 271 #define MMC_QUIRK_SEC_ERASE_TRIM_BROKEN (1<<10) /* Skip secure for erase/trim */
 272 #define MMC_QUIRK_BROKEN_IRQ_POLLING    (1<<11) /* Polling SDIO_CCCR_INTx could create a fake interrupt */
 273 #define MMC_QUIRK_TRIM_BROKEN   (1<<12)         /* Skip trim */
 274 #define MMC_QUIRK_BROKEN_HPI    (1<<13)         /* Disable broken HPI support */
 275
 276         bool                    reenable_cmdq;  /* Re-enable Command Queue */
 277
 278         unsigned int            erase_size;     /* erase size in sectors */
 279         unsigned int            erase_shift;    /* if erase unit is power 2 */
 280         unsigned int            pref_erase;     /* in sectors */
 281         unsigned int            eg_boundary;    /* don't cross erase-group boundaries */
 282         unsigned int            erase_arg;      /* erase / trim / discard */
 283         u8                      erased_byte;    /* value of erased bytes */
 284
 285         u32                     raw_cid[4];     /* raw card CID */
 286         u32                     raw_csd[4];     /* raw card CSD */
 287         u32                     raw_scr[2];     /* raw card SCR */
 288         u32                     raw_ssr[16];    /* raw card SSR */
 289         struct mmc_cid          cid;            /* card identification */
 290         struct mmc_csd          csd;            /* card specific */
 291         struct mmc_ext_csd      ext_csd;        /* mmc v4 extended card specific */
 292         struct sd_scr           scr;            /* extra SD information */
 293         struct sd_ssr           ssr;            /* yet more SD information */
 294         struct sd_switch_caps   sw_caps;        /* switch (CMD6) caps */
 295
 296         unsigned int            sdio_funcs;     /* number of SDIO functions */
 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         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 */