Release 4.18 drivers/staging/gdm724x/gdm_tty.h

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved. */

#ifndef _GDM_TTY_H_

#define _GDM_TTY_H_

#include <linux/types.h>
#include <linux/tty.h>


#define TTY_MAX_COUNT		2


#define MAX_ISSUE_NUM 3


enum TO_HOST_RESULT {
	
TO_HOST_BUFFER_REQUEST_FAIL = 1,
	
TO_HOST_PORT_CLOSE = 2,
	
TO_HOST_INVALID_PACKET = 3,
};


enum RECV_PACKET_PROCESS {
	
RECV_PACKET_PROCESS_COMPLETE = 0,
	
RECV_PACKET_PROCESS_CONTINUE = 1,
};


struct gdm {
	
struct tty_dev *tty_dev;
	
struct tty_port port;
	
unsigned int index;
	
unsigned int minor;
};


struct tty_dev {
	
void *priv_dev;
	
int (*send_func)(void *priv_dev,
			 void *data,
			 int len,
			 int tty_index,
			 void (*cb)(void *cb_data),
			 void *cb_data);
	
int (*recv_func)(void *priv_dev,
			 int (*cb)(void *data,
				   int len,
				   int tty_index,
				   struct tty_dev *tty_dev,
				   int complete));
	
int (*send_control)(void *priv_dev,
			    int request,
			    int value,
			    void *data,
			    int len);
	
struct gdm *gdm[2];
};

int register_lte_tty_driver(void);
void unregister_lte_tty_driver(void);
int register_lte_tty_device(struct tty_dev *tty_dev, struct device *dev);
void unregister_lte_tty_device(struct tty_dev *tty_dev);

#endif /* _GDM_USB_H_ */

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Directory: drivers/staging/gdm724x

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