LXR linux/include/linux/platform

   1#ifndef __PLATFORM_DATA_SDHCI_S3C_H
   2#define __PLATFORM_DATA_SDHCI_S3C_H
   3
   4struct platform_device;
   5
   6enum cd_types {
   7        S3C_SDHCI_CD_INTERNAL,  /* use mmc internal CD line */
   8        S3C_SDHCI_CD_EXTERNAL,  /* use external callback */
   9        S3C_SDHCI_CD_GPIO,      /* use external gpio pin for CD line */
  10        S3C_SDHCI_CD_NONE,      /* no CD line, use polling to detect card */
  11        S3C_SDHCI_CD_PERMANENT, /* no CD line, card permanently wired to host */
  12};
  13
  14/**
  15 * struct s3c_sdhci_platdata() - Platform device data for Samsung SDHCI
  16 * @max_width: The maximum number of data bits supported.
  17 * @host_caps: Standard MMC host capabilities bit field.
  18 * @host_caps2: The second standard MMC host capabilities bit field.
  19 * @cd_type: Type of Card Detection method (see cd_types enum above)
  20 * @ext_cd_init: Initialize external card detect subsystem. Called on
  21 *               sdhci-s3c driver probe when cd_type == S3C_SDHCI_CD_EXTERNAL.
  22 *               notify_func argument is a callback to the sdhci-s3c driver
  23 *               that triggers the card detection event. Callback arguments:
  24 *               dev is pointer to platform device of the host controller,
  25 *               state is new state of the card (0 - removed, 1 - inserted).
  26 * @ext_cd_cleanup: Cleanup external card detect subsystem. Called on
  27 *               sdhci-s3c driver remove when cd_type == S3C_SDHCI_CD_EXTERNAL.
  28 *               notify_func argument is the same callback as for ext_cd_init.
  29 * @ext_cd_gpio: gpio pin used for external CD line, valid only if
  30 *               cd_type == S3C_SDHCI_CD_GPIO
  31 * @ext_cd_gpio_invert: invert values for external CD gpio line
  32 * @cfg_gpio: Configure the GPIO for a specific card bit-width
  33 *
  34 * Initialisation data specific to either the machine or the platform
  35 * for the device driver to use or call-back when configuring gpio or
  36 * card speed information.
  37*/
  38struct s3c_sdhci_platdata {
  39        unsigned int    max_width;
  40        unsigned int    host_caps;
  41        unsigned int    host_caps2;
  42        unsigned int    pm_caps;
  43        enum cd_types   cd_type;
  44
  45        int             ext_cd_gpio;
  46        bool            ext_cd_gpio_invert;
  47        int     (*ext_cd_init)(void (*notify_func)(struct platform_device *,
  48                                                   int state));
  49        int     (*ext_cd_cleanup)(void (*notify_func)(struct platform_device *,
  50                                                      int state));
  51
  52        void    (*cfg_gpio)(struct platform_device *dev, int width);
  53};
  54
  55
  56#endif /* __PLATFORM_DATA_SDHCI_S3C_H */
  57