1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Serial core related functions, serial port device drivers do not need this.
4 *
5 * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
6 * Author: Tony Lindgren <tony@atomide.com>
7 */
8
9#define to_serial_base_ctrl_device(d) container_of((d), struct serial_ctrl_device, dev)
10#define to_serial_base_port_device(d) container_of((d), struct serial_port_device, dev)
11
12struct uart_driver;
13struct uart_port;
14struct device_driver;
15struct device;
16
17struct serial_ctrl_device {
18 struct device dev;
19 struct ida port_ida;
20};
21
22struct serial_port_device {
23 struct device dev;
24 struct uart_port *port;
25 unsigned int tx_enabled:1;
26};
27
28int serial_base_ctrl_init(void);
29void serial_base_ctrl_exit(void);
30
31int serial_base_port_init(void);
32void serial_base_port_exit(void);
33
34void serial_base_port_startup(struct uart_port *port);
35void serial_base_port_shutdown(struct uart_port *port);
36
37int serial_base_driver_register(struct device_driver *driver);
38void serial_base_driver_unregister(struct device_driver *driver);
39
40struct serial_ctrl_device *serial_base_ctrl_add(struct uart_port *port,
41 struct device *parent);
42struct serial_port_device *serial_base_port_add(struct uart_port *port,
43 struct serial_ctrl_device *parent);
44void serial_base_ctrl_device_remove(struct serial_ctrl_device *ctrl_dev);
45void serial_base_port_device_remove(struct serial_port_device *port_dev);
46
47int serial_ctrl_register_port(struct uart_driver *drv, struct uart_port *port);
48void serial_ctrl_unregister_port(struct uart_driver *drv, struct uart_port *port);
49
50int serial_core_register_port(struct uart_driver *drv, struct uart_port *port);
51void serial_core_unregister_port(struct uart_driver *drv, struct uart_port *port);
52
53#ifdef CONFIG_SERIAL_CORE_CONSOLE
54
55int serial_base_match_and_update_preferred_console(struct uart_driver *drv,
56 struct uart_port *port);
57
58#else
59
60static inline
61int serial_base_match_and_update_preferred_console(struct uart_driver *drv,
62 struct uart_port *port)
63{
64 return 0;
65}
66
67#endif
68