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/mmc/core.h>
  14
  15 struct mmc_cid {
  16         unsigned int            manfid;
  17         char                    prod_name[8];
  18         unsigned int            serial;
  19         unsigned short          oemid;
  20         unsigned short          year;
  21         unsigned char           hwrev;
  22         unsigned char           fwrev;
  23         unsigned char           month;
  24 };
  25
  26 struct mmc_csd {
  27         unsigned char           mmca_vsn;
  28         unsigned short          cmdclass;
  29         unsigned short          tacc_clks;
  30         unsigned int            tacc_ns;
  31         unsigned int            r2w_factor;
  32         unsigned int            max_dtr;
  33         unsigned int            read_blkbits;
  34         unsigned int            write_blkbits;
  35         unsigned int            capacity;
  36         unsigned int            read_partial:1,
  37                                 read_misalign:1,
  38                                 write_partial:1,
  39                                 write_misalign:1;
  40 };
  41
  42 struct mmc_ext_csd {
  43         unsigned int            hs_max_dtr;
  44         unsigned int            sectors;
  45 };
  46
  47 struct sd_scr {
  48         unsigned char           sda_vsn;
  49         unsigned char           bus_widths;
  50 #define SD_SCR_BUS_WIDTH_1      (1<<0)
  51 #define SD_SCR_BUS_WIDTH_4      (1<<2)
  52 };
  53
  54 struct sd_switch_caps {
  55         unsigned int            hs_max_dtr;
  56 };
  57
  58 struct sdio_cccr {
  59         unsigned int            sdio_vsn;
  60         unsigned int            sd_vsn;
  61         unsigned int            multi_block:1,
  62                                 low_speed:1,
  63                                 wide_bus:1,
  64                                 high_power:1,
  65                                 high_speed:1;
  66 };
  67
  68 struct sdio_cis {
  69         unsigned short          vendor;
  70         unsigned short          device;
  71         unsigned short          blksize;
  72         unsigned int            max_dtr;
  73 };
  74
  75 struct mmc_host;
  76 struct sdio_func;
  77 struct sdio_func_tuple;
  78
  79 #define SDIO_MAX_FUNCS          7
  80
  81 /*
  82  * MMC device
  83  */
  84 struct mmc_card {
  85         struct mmc_host         *host;          /* the host this device belongs to */
  86         struct device           dev;            /* the device */
  87         unsigned int            rca;            /* relative card address of device */
  88         unsigned int            type;           /* card type */
  89 #define MMC_TYPE_MMC            0               /* MMC card */
  90 #define MMC_TYPE_SD             1               /* SD card */
  91 #define MMC_TYPE_SDIO           2               /* SDIO card */
  92         unsigned int            state;          /* (our) card state */
  93 #define MMC_STATE_PRESENT       (1<<0)          /* present in sysfs */
  94 #define MMC_STATE_READONLY      (1<<1)          /* card is read-only */
  95 #define MMC_STATE_HIGHSPEED     (1<<2)          /* card is in high speed mode */
  96 #define MMC_STATE_BLOCKADDR     (1<<3)          /* card uses block-addressing */
  97
  98         u32                     raw_cid[4];     /* raw card CID */
  99         u32                     raw_csd[4];     /* raw card CSD */
 100         u32                     raw_scr[2];     /* raw card SCR */
 101         struct mmc_cid          cid;            /* card identification */
 102         struct mmc_csd          csd;            /* card specific */
 103         struct mmc_ext_csd      ext_csd;        /* mmc v4 extended card specific */
 104         struct sd_scr           scr;            /* extra SD information */
 105         struct sd_switch_caps   sw_caps;        /* switch (CMD6) caps */
 106
 107         unsigned int            sdio_funcs;     /* number of SDIO functions */
 108         struct sdio_cccr        cccr;           /* common card info */
 109         struct sdio_cis         cis;            /* common tuple info */
 110         struct sdio_func        *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */
 111         unsigned                num_info;       /* number of info strings */
 112         const char              **info;         /* info strings */
 113         struct sdio_func_tuple  *tuples;        /* unknown common tuples */
 114 };
 115
 116 #define mmc_card_mmc(c)         ((c)->type == MMC_TYPE_MMC)
 117 #define mmc_card_sd(c)          ((c)->type == MMC_TYPE_SD)
 118 #define mmc_card_sdio(c)        ((c)->type == MMC_TYPE_SDIO)
 119
 120 #define mmc_card_present(c)     ((c)->state & MMC_STATE_PRESENT)
 121 #define mmc_card_readonly(c)    ((c)->state & MMC_STATE_READONLY)
 122 #define mmc_card_highspeed(c)   ((c)->state & MMC_STATE_HIGHSPEED)
 123 #define mmc_card_blockaddr(c)   ((c)->state & MMC_STATE_BLOCKADDR)
 124
 125 #define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
 126 #define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
 127 #define mmc_card_set_highspeed(c) ((c)->state |= MMC_STATE_HIGHSPEED)
 128 #define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
 129
 130 #define mmc_card_name(c)        ((c)->cid.prod_name)
 131 #define mmc_card_id(c)          ((c)->dev.bus_id)
 132
 133 #define mmc_list_to_card(l)     container_of(l, struct mmc_card, node)
 134 #define mmc_get_drvdata(c)      dev_get_drvdata(&(c)->dev)
 135 #define mmc_set_drvdata(c,d)    dev_set_drvdata(&(c)->dev, d)
 136
 137 /*
 138  * MMC device driver (e.g., Flash card, I/O card...)
 139  */
 140 struct mmc_driver {
 141         struct device_driver drv;
 142         int (*probe)(struct mmc_card *);
 143         void (*remove)(struct mmc_card *);
 144         int (*suspend)(struct mmc_card *, pm_message_t);
 145         int (*resume)(struct mmc_card *);
 146 };
 147
 148 extern int mmc_register_driver(struct mmc_driver *);
 149 extern void mmc_unregister_driver(struct mmc_driver *);
 150
 151 #endif