#ifndef S390_DEVICE_H#define S390_DEVICE_H#include <asm/ccwdev.h>#include <asm/atomic.h>#include <linux/wait.h>/* * states of the device statemachine */enum dev_state {	DEV_STATE_NOT_OPER,	DEV_STATE_SENSE_PGID,	DEV_STATE_SENSE_ID,	DEV_STATE_OFFLINE,	DEV_STATE_VERIFY,	DEV_STATE_ONLINE,	DEV_STATE_W4SENSE,	DEV_STATE_DISBAND_PGID,	DEV_STATE_BOXED,	/* states to wait for i/o completion before doing something */	DEV_STATE_CLEAR_VERIFY,	DEV_STATE_TIMEOUT_KILL,	DEV_STATE_QUIESCE,	/* special states for devices gone not operational */	DEV_STATE_DISCONNECTED,	DEV_STATE_DISCONNECTED_SENSE_ID,	DEV_STATE_CMFCHANGE,	DEV_STATE_CMFUPDATE,	/* last element! */	NR_DEV_STATES};/* * asynchronous events of the device statemachine */enum dev_event {	DEV_EVENT_NOTOPER,	DEV_EVENT_INTERRUPT,	DEV_EVENT_TIMEOUT,	DEV_EVENT_VERIFY,	/* last element! */	NR_DEV_EVENTS};struct ccw_device;/* * action called through jumptable */typedef void (fsm_func_t)(struct ccw_device *, enum dev_event);extern fsm_func_t *dev_jumptable[NR_DEV_STATES][NR_DEV_EVENTS];static inline voiddev_fsm_event(struct ccw_device *cdev, enum dev_event dev_event){	dev_jumptable[cdev->private->state][dev_event](cdev, dev_event);}/* * Delivers 1 if the device state is final. */static inline intdev_fsm_final_state(struct ccw_device *cdev){	return (cdev->private->state == DEV_STATE_NOT_OPER ||		cdev->private->state == DEV_STATE_OFFLINE ||		cdev->private->state == DEV_STATE_ONLINE ||		cdev->private->state == DEV_STATE_BOXED);}extern struct workqueue_struct *ccw_device_work;extern struct workqueue_struct *ccw_device_notify_work;extern wait_queue_head_t ccw_device_init_wq;extern atomic_t ccw_device_init_count;void io_subchannel_irq (struct device *pdev);void io_subchannel_recog_done(struct ccw_device *cdev);int ccw_device_cancel_halt_clear(struct ccw_device *);void ccw_device_do_unreg_rereg(struct work_struct *);void ccw_device_move_to_orphanage(struct work_struct *);int ccw_device_is_orphan(struct ccw_device *);int ccw_device_recognition(struct ccw_device *);int ccw_device_online(struct ccw_device *);int ccw_device_offline(struct ccw_device *);/* Function prototypes for device status and basic sense stuff. */void ccw_device_accumulate_irb(struct ccw_device *, struct irb *);void ccw_device_accumulate_basic_sense(struct ccw_device *, struct irb *);int ccw_device_accumulate_and_sense(struct ccw_device *, struct irb *);int ccw_device_do_sense(struct ccw_device *, struct irb *);/* Function prototypes for sense id stuff. */void ccw_device_sense_id_start(struct ccw_device *);void ccw_device_sense_id_irq(struct ccw_device *, enum dev_event);void ccw_device_sense_id_done(struct ccw_device *, int);/* Function prototypes for path grouping stuff. */void ccw_device_sense_pgid_start(struct ccw_device *);void ccw_device_sense_pgid_irq(struct ccw_device *, enum dev_event);void ccw_device_sense_pgid_done(struct ccw_device *, int);void ccw_device_verify_start(struct ccw_device *);void ccw_device_verify_irq(struct ccw_device *, enum dev_event);void ccw_device_verify_done(struct ccw_device *, int);void ccw_device_disband_start(struct ccw_device *);void ccw_device_disband_irq(struct ccw_device *, enum dev_event);void ccw_device_disband_done(struct ccw_device *, int);int ccw_device_call_handler(struct ccw_device *);int ccw_device_stlck(struct ccw_device *);/* qdio needs this. */void ccw_device_set_timeout(struct ccw_device *, int);extern struct subchannel_id ccw_device_get_subchannel_id(struct ccw_device *);extern struct bus_type ccw_bus_type;/* Channel measurement facility related */void retry_set_schib(struct ccw_device *cdev);void cmf_retry_copy_block(struct ccw_device *);int cmf_reenable(struct ccw_device *);#endif