/******************************************************************
 
 Includes Intel Corporation's changes/modifications dated: 07/2011.
 Changed/modified portions - Copyright(c) 2011, Intel Corporation. 

******************************************************************/


#ifndef MMC_QUEUE_H
#define MMC_QUEUE_H

struct request;
struct task_struct;

struct mmc_queue {
	struct mmc_card		*card;
	struct task_struct	*thread;
	struct semaphore	thread_sem;
	unsigned int		flags;
	struct request		*req;
	int			(*issue_fn)(struct mmc_queue *, struct request *);
	void			*data;
	struct request_queue	*queue;
	struct scatterlist	*sg;
#if defined(CONFIG_ARCH_GEN3) || defined(CONFIG_ARCH_GEN3_MMC)
	char			*bp_buf;
	struct scatterlist	*bp_sg;
#endif
	char			*bounce_buf;
	struct scatterlist	*bounce_sg;
	unsigned int		bounce_sg_len;
};

extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *);
extern void mmc_cleanup_queue(struct mmc_queue *);
extern void mmc_queue_suspend(struct mmc_queue *);
extern void mmc_queue_resume(struct mmc_queue *);

extern unsigned int mmc_queue_map_sg(struct mmc_queue *);
extern void mmc_queue_bounce_pre(struct mmc_queue *);
extern void mmc_queue_bounce_post(struct mmc_queue *);

#endif