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