PRODUCT=10/1f/1/100
NAME="PC Speaker"
PHYS="isa0061/input0"
PROP=0
EV=40001
SND=6
MODALIAS=input:b0010v001Fp0001e0100-e0,12,kramls1,2,fw
     €АЕ„аiї_†I|ҐЏ+АД ?ч     /* SPDX-License-Identifier: GPL-2.0 */
#ifndef _SCSI_SCSI_HOST_H
#define _SCSI_SCSI_HOST_H

#include <linux/device.h>
#include <linux/list.h>
#include <linux/types.h>
#include <linux/workqueue.h>
#include <linux/mutex.h>
#include <linux/seq_file.h>
#include <linux/blk-mq.h>
#include <scsi/scsi.h>

#include <linux/rh_kabi.h>

struct block_device;
struct completion;
struct module;
struct scsi_cmnd;
struct scsi_device;
struct scsi_target;
struct Scsi_Host;
struct scsi_transport_template;


#define SG_ALL	SG_CHUNK_SIZE

#define MODE_UNKNOWN 0x00
#define MODE_INITIATOR 0x01
#define MODE_TARGET 0x02

/**
 * enum scsi_timeout_action - How to handle a command that timed out.
 * @SCSI_EH_DONE: The command has already been completed.
 * @SCSI_EH_RESET_TIMER: Reset the timer and continue waiting for completion.
 * @SCSI_EH_NOT_HANDLED: The command has not yet finished. Abort the command.
 */
enum scsi_timeout_action {
	SCSI_EH_NOT_HANDLED = BLK_EH_DONE,
	SCSI_EH_RESET_TIMER = BLK_EH_RESET_TIMER,
	SCSI_EH_DONE = 2,
};

struct scsi_host_template {
	/*
	 * Put fields referenced in IO submission path together in
	 * same cacheline
	 */

	/*
	 * Additional per-command data allocated for the driver.
	 */
	unsigned int cmd_size;

	/*
	 * The queuecommand function is used to queue up a scsi
	 * command block to the LLDD.  When the driver finished
	 * processing the command the done callback is invoked.
	 *
	 * If queuecommand returns 0, then the driver has accepted the
	 * command.  It must also push it to the HBA if the scsi_cmnd
	 * flag SCMD_LAST is set, or if the driver does not implement
	 * commit_rqs.  The done() function must be called on the command
	 * when the driver has finished with it. (you may call done on the
	 * command before queuecommand returns, but in this case you
	 * *must* return 0 from queuecommand).
	 *
	 * Queuecommand may also reject the command, in which case it may
	 * not touch the command and must not call done() for it.
	 *
	 * There are two possible rejection returns:
	 *
	 *   SCSI_MLQUEUE_DEVICE_BUSY: Block this device temporarily, but
	 *   allow commands to other devices serviced by this host.
	 *
	 *   SCSI_MLQUEUE_HOST_BUSY: Block all devices served by this
	 *   host temporarily.
	 *
         * For compatibility, any other non-zero return is treated the
         * same as SCSI_MLQUEUE_HOST_BUSY.
	 *
	 * NOTE: "temporarily" means either until the next command for#
	 * this device/host completes, or a period of time determined by
	 * I/O pressure in the system if there are no other outstanding
	 * commands.
	 *
	 * STATUS: REQUIRED
	 */
	int (* queuecommand)(struct Scsi_Host *, struct scsi_cmnd *);

	/*
	 * The commit_rqs function is used to trigger a hardware
	 * doorbell after some requests have been queued with
	 * queuecommand, when an error is encountered before sending
	 * the request with SCMD_LAST set.
	 *
	 * STATUS: OPTIONAL
	 */
	void (*commit_rqs)(struct Scsi_Host *, u16);

	struct module *module;
	const char *name;

	/*
	 * The info function will return whatever useful information the
	 * developer sees fit.  If not provided, then the name field will
	 * be used instead.
	 *
	 * Status: OPTIONAL
	 */
	const char *(*info)(struct Scsi_Host *);

	/*
	 * Ioctl interface
	 *
	 * Status: OPTIONAL
	 */
	int (*ioctl)(struct scsi_device *dev, unsigned int cmd,
		     void __user *arg);


#ifdef CONFIG_COMPAT
	/*
	 * Compat handler. Handle 32bit ABI.
	 * When unknown ioctl is passed return -ENOIOCTLCMD.
	 *
	 * Status: OPTIONAL
	 */
	int (*compat_ioctl)(struct scsi_device *dev, unsigned int cmd,
			    void __user *arg);
#endif

	int (*init_cmd_priv)(struct Scsi_Host *shost, struct scsi_cmnd *cmd);
	int (*exit_cmd_priv)(struct Scsi_Host *shost, struct scsi_cmnd *cmd);

	/*
	 * This is an error handling strategy routine.  You don't need to
	 * define one of these if you don't want to - there is a default
	 * routine that is pre