1 #ifndef __PLATFORM_DATA_SDHCI_S3C_H 2 #define __PLATFORM_DATA_SDHCI_S3C_H 3 4 struct platform_device; 5 6 enum 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 */ 38 struct 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