/* *  linux/include/linux/mmc/host.h * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * *  Host driver specific definitions. */#ifndef LINUX_MMC_HOST_H#define LINUX_MMC_HOST_H#include <linux/mmc/mmc.h>struct mmc_ios {	unsigned int	clock;			/* clock rate */	unsigned short	vdd;#define	MMC_VDD_150	0#define	MMC_VDD_155	1#define	MMC_VDD_160	2#define	MMC_VDD_165	3#define	MMC_VDD_170	4#define	MMC_VDD_180	5#define	MMC_VDD_190	6#define	MMC_VDD_200	7#define	MMC_VDD_210	8#define	MMC_VDD_220	9#define	MMC_VDD_230	10#define	MMC_VDD_240	11#define	MMC_VDD_250	12#define	MMC_VDD_260	13#define	MMC_VDD_270	14#define	MMC_VDD_280	15#define	MMC_VDD_290	16#define	MMC_VDD_300	17#define	MMC_VDD_310	18#define	MMC_VDD_320	19#define	MMC_VDD_330	20#define	MMC_VDD_340	21#define	MMC_VDD_350	22#define	MMC_VDD_360	23	unsigned char	bus_mode;		/* command output mode */#define MMC_BUSMODE_OPENDRAIN	1#define MMC_BUSMODE_PUSHPULL	2	unsigned char	chip_select;		/* SPI chip select */#define MMC_CS_DONTCARE		0#define MMC_CS_HIGH		1#define MMC_CS_LOW		2	unsigned char	power_mode;		/* power supply mode */#define MMC_POWER_OFF		0#define MMC_POWER_UP		1#define MMC_POWER_ON		2	unsigned char	bus_width;		/* data bus width */#define MMC_BUS_WIDTH_1		0#define MMC_BUS_WIDTH_4		2};struct mmc_host_ops {	void	(*request)(struct mmc_host *host, struct mmc_request *req);	void	(*set_ios)(struct mmc_host *host, struct mmc_ios *ios);	int	(*get_ro)(struct mmc_host *host);};struct mmc_card;struct device;struct mmc_host {	struct device		*dev;	struct class_device	class_dev;	struct mmc_host_ops	*ops;	unsigned int		f_min;	unsigned int		f_max;	u32			ocr_avail;	char			host_name[8];	unsigned long		caps;		/* Host capabilities */#define MMC_CAP_4_BIT_DATA	(1 << 0)	/* Can the host do 4 bit transfers */	/* host specific block data */	unsigned int		max_seg_size;	/* see blk_queue_max_segment_size */	unsigned short		max_hw_segs;	/* see blk_queue_max_hw_segments */	unsigned short		max_phys_segs;	/* see blk_queue_max_phys_segments */	unsigned short		max_sectors;	/* see blk_queue_max_sectors */	unsigned short		unused;	/* private data */	struct mmc_ios		ios;		/* current io bus settings */	u32			ocr;		/* the current OCR setting */	unsigned int		mode;		/* current card mode of host */#define MMC_MODE_MMC		0#define MMC_MODE_SD		1	struct list_head	cards;		/* devices attached to this host */	wait_queue_head_t	wq;	spinlock_t		lock;		/* card_busy lock */	struct mmc_card		*card_busy;	/* the MMC card claiming host */	struct mmc_card		*card_selected;	/* the selected MMC card */	struct work_struct	detect;};extern struct mmc_host *mmc_alloc_host(int extra, struct device *);extern int mmc_add_host(struct mmc_host *);extern void mmc_remove_host(struct mmc_host *);extern void mmc_free_host(struct mmc_host *);#define mmc_priv(x)	((void *)((x) + 1))#define mmc_dev(x)	((x)->dev)#define mmc_hostname(x)	((x)->host_name)extern int mmc_suspend_host(struct mmc_host *, u32);extern int mmc_resume_host(struct mmc_host *);extern void mmc_detect_change(struct mmc_host *, unsigned long delay);extern void mmc_request_done(struct mmc_host *, struct mmc_request *);#endif