card.h 3.4 KB

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