1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved. */
3
4#ifndef _GDM_TTY_H_
5#define _GDM_TTY_H_
6
7#include <linux/types.h>
8#include <linux/tty.h>
9
10#define TTY_MAX_COUNT		2
11
12#define MAX_ISSUE_NUM 3
13
14enum TO_HOST_RESULT {
15	TO_HOST_BUFFER_REQUEST_FAIL = 1,
16	TO_HOST_PORT_CLOSE = 2,
17	TO_HOST_INVALID_PACKET = 3,
18};
19
20enum RECV_PACKET_PROCESS {
21	RECV_PACKET_PROCESS_COMPLETE = 0,
22	RECV_PACKET_PROCESS_CONTINUE = 1,
23};
24
25struct gdm {
26	struct tty_dev *tty_dev;
27	struct tty_port port;
28	unsigned int index;
29	unsigned int minor;
30};
31
32struct tty_dev {
33	void *priv_dev;
34	int (*send_func)(void *priv_dev,
35			 void *data,
36			 int len,
37			 int tty_index,
38			 void (*cb)(void *cb_data),
39			 void *cb_data);
40	int (*recv_func)(void *priv_dev,
41			 int (*cb)(void *data,
42				   int len,
43				   int tty_index,
44				   struct tty_dev *tty_dev,
45				   int complete));
46	int (*send_control)(void *priv_dev,
47			    int request,
48			    int value,
49			    void *data,
50			    int len);
51	struct gdm *gdm[2];
52};
53
54int register_lte_tty_driver(void);
55void unregister_lte_tty_driver(void);
56int register_lte_tty_device(struct tty_dev *tty_dev, struct device *dev);
57void unregister_lte_tty_device(struct tty_dev *tty_dev);
58
59#endif /* _GDM_USB_H_ */
60
61