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  #   ˆl–ß=¿JÅ!¶e8 EpÜ TÅ£Äƒ/ÁÀÇ 	M    /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * ATM Lan Emulation Daemon driver interface
 *
 * Marko Kiiskila <mkiiskila@yahoo.com>
 */

#ifndef _ATMLEC_H_
#define _ATMLEC_H_

#include <linux/atmapi.h>
#include <linux/atmioc.h>
#include <linux/atm.h>
#include <linux/if_ether.h>
#include <linux/types.h>

/* ATM lec daemon control socket */
#define ATMLEC_CTRL	_IO('a', ATMIOC_LANE)
#define ATMLEC_DATA	_IO('a', ATMIOC_LANE+1)
#define ATMLEC_MCAST	_IO('a', ATMIOC_LANE+2)

/* Maximum number of LEC interfaces (tweakable) */
#define MAX_LEC_ITF 48

typedef enum {
	l_set_mac_addr,
	l_del_mac_addr,
	l_svc_setup,
	l_addr_delete,
	l_topology_change,
	l_flush_complete,
	l_arp_update,
	l_narp_req,		/* LANE2 mandates the use of this */
	l_config,
	l_flush_tran_id,
	l_set_lecid,
	l_arp_xmt,
	l_rdesc_arp_xmt,
	l_associate_req,
	l_should_bridge		/* should we bridge this MAC? */
} atmlec_msg_type;

#define ATMLEC_MSG_TYPE_MAX l_should_bridge

struct atmlec_config_msg {
	unsigned int maximum_unknown_frame_count;
	unsigned int max_unknown_frame_time;
	unsigned short max_retry_count;
	unsigned int aging_time;
	unsigned int forward_delay_time;
	unsigned int arp_response_time;
	unsigned int flush_timeout;
	unsigned int path_switching_delay;
	unsigned int lane_version;	/* LANE2: 1 for LANEv1, 2 for LANEv2 */
	int mtu;
	int is_proxy;
};

struct atmlec_msg {
	atmlec_msg_type type;
	int sizeoftlvs;		/* LANE2: if != 0, tlvs follow */
	union {
		struct {
			unsigned char mac_addr[ETH_ALEN];
			unsigned char atm_addr[ATM_ESA_LEN];
			unsigned int flag;	/*
						 * Topology_change flag,
						 * remoteflag, permanent flag,
						 * lecid, transaction id
						 */
			unsigned int targetless_le_arp;	/* LANE2 */
			unsigned int no_source_le_narp;	/* LANE2 */
		} normal;
		struct atmlec_config_msg config;
		struct {
			__u16 lec_id;				/* requestor lec_id  */
			__u32 tran_id;				/* transaction id    */
			unsigned char mac_addr[ETH_ALEN];	/* dst mac addr      */
			unsigned char atm_addr[ATM_ESA_LEN];	/* reqestor ATM addr */
		} proxy;	/*
				 * For mapping LE_ARP requests to responses. Filled by
				 * zeppelin, returned by kernel. Used only when proxying
				 */
	} content;
} __ATM_API_ALIGN;

struct atmlec_ioc {
	int dev_num;
	unsigned char atm_addr[ATM_ESA_LEN];
	unsigned char receive;	/* 1= receive vcc, 0 = send vcc */
};
#endif /* _ATMLEC_H_ */
     ˆÂÄ„ŸÁÀÇ ?÷     /* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_TTY_DRIVER_H
#define _LINUX_TTY_DRIVER_H

#include <linux/export.h>
#include <linux/fs.h>
#include <linux/kref.h>
#include <linux/list.h>
#include <linux/cdev.h>
#include <linux/termios.h>
#include <linux/seq_file.h>

struct tty_struct;
struct tty_driver;
struct serial_icounter_struct;
struct serial_struct;

/**
 * struct tty_operations -- interface between driver and tty
 *
 * @lookup: ``struct tty_struct *()(struct tty_driver *self, struct file *,
 *				    int idx)``
 *
 *	Return the tty device corresponding to @idx, %NULL if there is not
 *	one currently in use and an %ERR_PTR value on error. Called under
 *	%tty_mutex (for now!)
 *
 *	Optional method. Default behaviour is to use the @self->ttys array.
 *
 * @install: ``int ()(struct tty_driver *self, struct tty_struct *tty)``
 *
 *	Install a new @tty into the @self's internal tables. Used in
 *	conjunction with @lookup and @remove methods.
 *
 *	Optional method. Default behaviour is to use the @self->ttys array.
 *
 * @remove: ``void ()(struct tty_driver *self, struct tty_struct *tty)``
 *
 *	Remove a closed @tty from the @self's internal tables. Used in
 *	conjunction with @lookup and @remove methods.
 *
 *	Optional method. Default behaviour is to use the @self->ttys array.
 *
 * @open: ``int ()(struct tty_struct *tty, struct file *)``
 *
 *	This routine is called when a particular @tty device is opened. This
 *	routine is mandatory; if this routine is not filled in, the attempted
 *	open will fail with %ENODEV.
 *
 *	Required method. Called with tty lock held. May sleep.
 *
 * @close: ``vo