enum cd_types {
S3C_SDHCI_CD_INTERNAL, /* use mmc internal CD line */
S3C_SDHCI_CD_EXTERNAL, /* use external callback */
S3C_SDHCI_CD_GPIO, /* use external gpio pin for CD line */
S3C_SDHCI_CD_NONE, /* no CD line, use polling to detect card */
S3C_SDHCI_CD_PERMANENT, /* no CD line, card permanently wired to host */
};
/** * struct s3c_sdhci_platdata() - Platform device data for Samsung SDHCI * @max_width: The maximum number of data bits supported. * @host_caps: Standard MMC host capabilities bit field. * @host_caps2: The second standard MMC host capabilities bit field. * @cd_type: Type of Card Detection method (see cd_types enum above) * @ext_cd_init: Initialize external card detect subsystem. Called on * sdhci-s3c driver probe when cd_type == S3C_SDHCI_CD_EXTERNAL. * notify_func argument is a callback to the sdhci-s3c driver * that triggers the card detection event. Callback arguments: * dev is pointer to platform device of the host controller, * state is new state of the card (0 - removed, 1 - inserted). * @ext_cd_cleanup: Cleanup external card detect subsystem. Called on * sdhci-s3c driver remove when cd_type == S3C_SDHCI_CD_EXTERNAL. * notify_func argument is the same callback as for ext_cd_init. * @ext_cd_gpio: gpio pin used for external CD line, valid only if * cd_type == S3C_SDHCI_CD_GPIO * @ext_cd_gpio_invert: invert values for external CD gpio line * @cfg_gpio: Configure the GPIO for a specific card bit-width * * Initialisation data specific to either the machine or the platform * for the device driver to use or call-back when configuring gpio or * card speed information.
*/ struct s3c_sdhci_platdata { unsignedint max_width; unsignedint host_caps; unsignedint host_caps2; unsignedint pm_caps; enum cd_types cd_type;
int ext_cd_gpio; bool ext_cd_gpio_invert; int (*ext_cd_init)(void (*notify_func)(struct platform_device *, int state)); int (*ext_cd_cleanup)(void (*notify_func)(struct platform_device *, int state));
void (*cfg_gpio)(struct platform_device *dev, int width);
};
#endif/* __PLATFORM_DATA_SDHCI_S3C_H */
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