| Arnd Bergmann | cc014f3 | 2013-03-04 18:28:21 +0100 | [diff] [blame] | 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 */ |