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 #if 1   // add by Victor Yu. 11-28-2005
  16 #ifndef _PM_MESSAGE_T
  17 #define _PM_MESSAGE_T
  18 typedef unsigned int    pm_message_t;
  19 #endif  // _PM_MESSAGE_T
  20 #endif
  21
  22 struct mmc_cid {
  23         unsigned int            manfid;
  24         char                    prod_name[8];
  25         unsigned int            serial;
  26         unsigned short          oemid;
  27         unsigned short          year;
  28         unsigned char           hwrev;
  29         unsigned char           fwrev;
  30         unsigned char           month;
  31 };
  32
  33 struct mmc_csd {
  34         unsigned char           mmca_vsn;
  35         unsigned short          cmdclass;
  36         unsigned short          tacc_clks;
  37         unsigned int            tacc_ns;
  38         unsigned int            r2w_factor;
  39         unsigned int            max_dtr;
  40         unsigned int            read_blkbits;
  41         unsigned int            write_blkbits;
  42         unsigned int            capacity;
  43         unsigned int            read_partial:1,
  44                                 read_misalign:1,
  45                                 write_partial:1,
  46                                 write_misalign:1;
  47 };
  48
  49 struct mmc_ext_csd {
  50         unsigned int            hs_max_dtr;
  51         unsigned int            sectors;
  52 };
  53
  54 struct sd_scr {
  55         unsigned char           sda_vsn;
  56         unsigned char           bus_widths;
  57 #define SD_SCR_BUS_WIDTH_1      (1<<0)
  58 #define SD_SCR_BUS_WIDTH_4      (1<<2)
  59 };
  60
  61 struct sd_switch_caps {
  62         unsigned int            hs_max_dtr;
  63 };
  64
  65 struct mmc_host;
  66
  67 /*
  68  * MMC device
  69  */
  70 struct mmc_card {
  71         struct mmc_host         *host;          /* the host this device belongs to */
  72         struct device           dev;            /* the device */
  73         unsigned int            rca;            /* relative card address of device */
  74         unsigned int            type;           /* card type */
  75 #define MMC_TYPE_MMC            0               /* MMC card */
  76 #define MMC_TYPE_SD             1               /* SD card */
  77         unsigned int            state;          /* (our) card state */
  78 #define MMC_STATE_PRESENT       (1<<0)          /* present in sysfs */
  79 #define MMC_STATE_READONLY      (1<<1)          /* card is read-only */
  80 #define MMC_STATE_HIGHSPEED     (1<<2)          /* card is in high speed mode */
  81 #define MMC_STATE_BLOCKADDR     (1<<3)          /* card uses block-addressing */
  82         u32                     raw_cid[4];     /* raw card CID */
  83         u32                     raw_csd[4];     /* raw card CSD */
  84         u32                     raw_scr[2];     /* raw card SCR */
  85         struct mmc_cid          cid;            /* card identification */
  86         struct mmc_csd          csd;            /* card specific */
  87         struct mmc_ext_csd      ext_csd;        /* mmc v4 extended card specific */
  88         struct sd_scr           scr;            /* extra SD information */
  89         struct sd_switch_caps   sw_caps;        /* switch (CMD6) caps */
  90 };
  91
  92 #define mmc_card_mmc(c)         ((c)->type == MMC_TYPE_MMC)
  93 #define mmc_card_sd(c)          ((c)->type == MMC_TYPE_SD)
  94
  95 #define mmc_card_present(c)     ((c)->state & MMC_STATE_PRESENT)
  96 #define mmc_card_readonly(c)    ((c)->state & MMC_STATE_READONLY)
  97 #define mmc_card_highspeed(c)   ((c)->state & MMC_STATE_HIGHSPEED)
  98 #define mmc_card_blockaddr(c)   ((c)->state & MMC_STATE_BLOCKADDR)
  99
 100 #define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
 101 #define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
 102 #define mmc_card_set_highspeed(c) ((c)->state |= MMC_STATE_HIGHSPEED)
 103 #define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
 104
 105 #define mmc_card_name(c)        ((c)->cid.prod_name)
 106 #define mmc_card_id(c)          ((c)->dev.bus_id)
 107
 108 #define mmc_list_to_card(l)     container_of(l, struct mmc_card, node)
 109 #define mmc_get_drvdata(c)      dev_get_drvdata(&(c)->dev)
 110 #define mmc_set_drvdata(c,d)    dev_set_drvdata(&(c)->dev, d)
 111
 112 /*
 113  * MMC device driver (e.g., Flash card, I/O card...)
 114  */
 115 struct mmc_driver {
 116         struct device_driver drv;
 117         int (*probe)(struct mmc_card *);
 118         void (*remove)(struct mmc_card *);
 119         int (*suspend)(struct mmc_card *, pm_message_t);
 120         int (*resume)(struct mmc_card *);
 121 };
 122
 123 extern int mmc_register_driver(struct mmc_driver *);
 124 extern void mmc_unregister_driver(struct mmc_driver *);
 125
 126 #endif