linux/mmc/host.h

320 struct mmc_host {  struct
324 	const struct mmc_host_ops *ops;  argument
325 	struct mmc_pwrseq	*pwrseq;
326 	unsigned int		f_min;
327 	unsigned int		f_max;
328 	unsigned int		f_init;
329 	u32			ocr_avail;
330 	u32			ocr_avail_sdio;	/* SDIO-specific OCR */
331 	u32			ocr_avail_sd;	/* SD-specific OCR */
332 	u32			ocr_avail_mmc;	/* MMC-specific OCR */
333 	struct wakeup_source	*ws;		/* Enable consume of uevents */
334 	u32			max_current_330;
335 	u32			max_current_300;
336 	u32			max_current_180;
356 	u32			caps;		/* Host capabilities */
394 	u32			caps2;		/* More host capabilities */
431 	int			fixed_drv_type;	/* fixed driver type for non-removable media */
433 	mmc_pm_flag_t		pm_caps;	/* supported pm features */
436 	unsigned int		max_seg_size;	/* see blk_queue_max_segment_size */
437 	unsigned short		max_segs;	/* see blk_queue_max_segments */
438 	unsigned short		unused;
439 	unsigned int		max_req_size;	/* maximum number of bytes in one req */
440 	unsigned int		max_blk_size;	/* maximum size of one mmc block */
441 	unsigned int		max_blk_count;	/* maximum number of blocks in one req */
442 	unsigned int		max_busy_timeout; /* max busy timeout in ms */
445 	spinlock_t		lock;		/* lock for claim and bus ops */
447 	struct mmc_ios		ios;		/* current io bus settings */
450 	unsigned int		use_spi_crc:1;
451 	unsigned int		claimed:1;	/* host exclusively claimed */
452 	unsigned int		doing_init_tune:1; /* initial tuning in progress */
453 	unsigned int		can_retune:1;	/* re-tuning can be used */
454 	unsigned int		doing_retune:1;	/* re-tuning in progress */
455 	unsigned int		retune_now:1;	/* do re-tuning at next req */
456 	unsigned int		retune_paused:1; /* re-tuning is temporarily disabled */
457 	unsigned int		retune_crc_disable:1; /* don't trigger retune upon crc */
458 	unsigned int		can_dma_map_merge:1; /* merging can be used */
459 	unsigned int		vqmmc_enabled:1; /* vqmmc regulator is enabled */
461 	int			rescan_disable;	/* disable card detection */
462 	int			rescan_entered;	/* used with nonremovable devices */
464 	int			need_retune;	/* re-tuning is needed */
465 	int			hold_retune;	/* hold off re-tuning */
466 	unsigned int		retune_period;	/* re-tuning period in secs */
467 	struct timer_list	retune_timer;	/* for periodic re-tuning */
469 	bool			trigger_card_event; /* card_event necessary */
471 	struct mmc_card		*card;		/* device attached to this host */
473 	wait_queue_head_t	wq;
474 	struct mmc_ctx		*claimer;	/* context that has host claimed */
475 	int			claim_cnt;	/* "claim" nesting count */
476 	struct mmc_ctx		default_ctx;	/* default context */
478 	struct delayed_work	detect;
479 	int			detect_change;	/* card detect flag */
480 	struct mmc_slot		slot;
482 	const struct mmc_bus_ops *bus_ops;	/* current bus driver */
484 	unsigned int		sdio_irqs;
485 	struct task_struct	*sdio_irq_thread;
486 	struct work_struct	sdio_irq_work;
487 	bool			sdio_irq_pending;
488 	atomic_t		sdio_irq_thread_abort;
490 	mmc_pm_flag_t		pm_flags;	/* requested pm features */
492 	struct led_trigger	*led;		/* activity led */
495 	bool			regulator_enabled; /* regulator state */
497 	struct mmc_supply	supply;
499 	struct dentry		*debugfs_root;
502 	struct mmc_request	*ongoing_mrq;
505 	struct fault_attr	fail_mmc_request;
508 	unsigned int		actual_clock;	/* Actual HC clock rate */
510 	unsigned int		slotno;	/* used for sdio acpi binding */
512 	int			dsr_req;	/* DSR value is valid */
513 	u32			dsr;	/* optional driver stage (DSR) value */
537 struct mmc_host *mmc_alloc_host(int extra, struct device *);  argument