[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / mmc / host.h

/*
 *  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;
	int			index;
	const struct mmc_host_ops *ops;
	unsigned int		f_min;
	unsigned int		f_max;
	u32			ocr_avail;

	unsigned long		caps;		/* Host capabilities */

#define MMC_CAP_4_BIT_DATA	(1 << 0)	/* Can the host do 4 bit transfers */
#define MMC_CAP_MULTIWRITE	(1 << 1)	/* Can accurately report bytes sent to card on error */
#define MMC_CAP_BYTEBLOCK	(1 << 2)	/* Can do non-log2 block sizes */

	/* 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 delayed_work	detect;

	unsigned long		private[0] ____cacheline_aligned;
};

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 *);

static inline void *mmc_priv(struct mmc_host *host)
{
	return (void *)host->private;
}

#define mmc_dev(x)	((x)->dev)
#define mmc_hostname(x)	((x)->class_dev.class_id)

extern int mmc_suspend_host(struct mmc_host *, pm_message_t);
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
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/include/linux/mmc/host.h
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License version 2 as
	6	* published by the Free Software Foundation.
	7	*
	8	* Host driver specific definitions.
	9	*/
	10	#ifndef LINUX_MMC_HOST_H
	11	#define LINUX_MMC_HOST_H
	12
	13	#include <linux/mmc/mmc.h>
	14
	15	struct mmc_ios {
	16	unsigned int clock; /* clock rate */
	17	unsigned short vdd;
	18
	19	#define MMC_VDD_150 0
	20	#define MMC_VDD_155 1
	21	#define MMC_VDD_160 2
	22	#define MMC_VDD_165 3
	23	#define MMC_VDD_170 4
	24	#define MMC_VDD_180 5
	25	#define MMC_VDD_190 6
	26	#define MMC_VDD_200 7
	27	#define MMC_VDD_210 8
	28	#define MMC_VDD_220 9
	29	#define MMC_VDD_230 10
	30	#define MMC_VDD_240 11
	31	#define MMC_VDD_250 12
	32	#define MMC_VDD_260 13
	33	#define MMC_VDD_270 14
	34	#define MMC_VDD_280 15
	35	#define MMC_VDD_290 16
	36	#define MMC_VDD_300 17
	37	#define MMC_VDD_310 18
	38	#define MMC_VDD_320 19
	39	#define MMC_VDD_330 20
	40	#define MMC_VDD_340 21
	41	#define MMC_VDD_350 22
	42	#define MMC_VDD_360 23
	43
	44	unsigned char bus_mode; /* command output mode */
	45
	46	#define MMC_BUSMODE_OPENDRAIN 1
	47	#define MMC_BUSMODE_PUSHPULL 2
	48
865e9f13 PO	49	unsigned char chip_select; /* SPI chip select */
	50
	51	#define MMC_CS_DONTCARE 0
	52	#define MMC_CS_HIGH 1
	53	#define MMC_CS_LOW 2
	54
1da177e4 LT	55	unsigned char power_mode; /* power supply mode */
	56
	57	#define MMC_POWER_OFF 0
	58	#define MMC_POWER_UP 1
	59	#define MMC_POWER_ON 2
f218278a PO	60
	61	unsigned char bus_width; /* data bus width */
	62
	63	#define MMC_BUS_WIDTH_1 0
	64	#define MMC_BUS_WIDTH_4 2
1da177e4 LT	65	};
	66
	67	struct mmc_host_ops {
	68	void (request)(struct mmc_host host, struct mmc_request *req);
	69	void (set_ios)(struct mmc_host host, struct mmc_ios *ios);
a00fc090	70	int (get_ro)(struct mmc_host host);
1da177e4 LT	71	};
	72
	73	struct mmc_card;
	74	struct device;
	75
	76	struct mmc_host {
	77	struct device *dev;
00b137cf	78	struct class_device class_dev;
dce77377	79	int index;
f57b225e	80	const struct mmc_host_ops *ops;
1da177e4 LT	81	unsigned int f_min;
	82	unsigned int f_max;
	83	u32 ocr_avail;
1da177e4	84
f218278a PO	85	unsigned long caps; /* Host capabilities */
	86
	87	#define MMC_CAP_4_BIT_DATA (1 << 0) /* Can the host do 4 bit transfers */
db53f28b	88	#define MMC_CAP_MULTIWRITE (1 << 1) /* Can accurately report bytes sent to card on error */
42431acb	89	#define MMC_CAP_BYTEBLOCK (1 << 2) /* Can do non-log2 block sizes */
f218278a	90
1da177e4 LT	91	/* host specific block data */
	92	unsigned int max_seg_size; /* see blk_queue_max_segment_size */
	93	unsigned short max_hw_segs; /* see blk_queue_max_hw_segments */
	94	unsigned short max_phys_segs; /* see blk_queue_max_phys_segments */
	95	unsigned short max_sectors; /* see blk_queue_max_sectors */
	96	unsigned short unused;
	97
	98	/* private data */
	99	struct mmc_ios ios; /* current io bus settings */
	100	u32 ocr; /* the current OCR setting */
	101
335eadf2 PO	102	unsigned int mode; /* current card mode of host */
	103	#define MMC_MODE_MMC 0
	104	#define MMC_MODE_SD 1
	105
1da177e4 LT	106	struct list_head cards; /* devices attached to this host */
	107
	108	wait_queue_head_t wq;
	109	spinlock_t lock; /* card_busy lock */
	110	struct mmc_card card_busy; / the MMC card claiming host */
	111	struct mmc_card card_selected; / the selected MMC card */
	112
c4028958	113	struct delayed_work detect;
01357dca RK	114
01357dca RK	115	unsigned long private[0] ____cacheline_aligned;
1da177e4 LT	116	};
	117
	118	extern struct mmc_host mmc_alloc_host(int extra, struct device );
	119	extern int mmc_add_host(struct mmc_host *);
	120	extern void mmc_remove_host(struct mmc_host *);
	121	extern void mmc_free_host(struct mmc_host *);
	122
01357dca RK	123	static inline void mmc_priv(struct mmc_host host)
	124	{
	125	return (void *)host->private;
	126	}
	127
1da177e4	128	#define mmc_dev(x) ((x)->dev)
1ad434d7	129	#define mmc_hostname(x) ((x)->class_dev.class_id)
1da177e4	130
3bfffd97	131	extern int mmc_suspend_host(struct mmc_host *, pm_message_t);
1da177e4 LT	132	extern int mmc_resume_host(struct mmc_host *);
1da177e4 LT	133
8dc00335	134	extern void mmc_detect_change(struct mmc_host *, unsigned long delay);
1da177e4 LT	135	extern void mmc_request_done(struct mmc_host , struct mmc_request );
	136
	137	#endif
	138