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 12 struct uart_driver; 13 struct uart_port; 14 struct device_driver; 15 struct device; 16 17 struct serial_ctrl_device { 18 struct device dev; 19 struct ida port_ida; 20 }; 21 22 struct serial_port_device { 23 struct device dev; 24 struct uart_port *port; 25 unsigned int tx_enabled:1; 26 }; 27 28 int serial_base_ctrl_init(void); 29 void serial_base_ctrl_exit(void); 30 31 int serial_base_port_init(void); 32 void serial_base_port_exit(void); 33 34 void serial_base_port_startup(struct uart_port *port); 35 void serial_base_port_shutdown(struct uart_port *port); 36 37 int serial_base_driver_register(struct device_driver *driver); 38 void serial_base_driver_unregister(struct device_driver *driver); 39 40 struct serial_ctrl_device *serial_base_ctrl_add(struct uart_port *port, 41 struct device *parent); 42 struct serial_port_device *serial_base_port_add(struct uart_port *port, 43 struct serial_ctrl_device *parent); 44 void serial_base_ctrl_device_remove(struct serial_ctrl_device *ctrl_dev); 45 void serial_base_port_device_remove(struct serial_port_device *port_dev); 46 47 int serial_ctrl_register_port(struct uart_driver *drv, struct uart_port *port); 48 void serial_ctrl_unregister_port(struct uart_driver *drv, struct uart_port *port); 49 50 int serial_core_register_port(struct uart_driver *drv, struct uart_port *port); 51 void serial_core_unregister_port(struct uart_driver *drv, struct uart_port *port); 52 53 #ifdef CONFIG_SERIAL_CORE_CONSOLE 54 55 int serial_base_match_and_update_preferred_console(struct uart_driver *drv, 56 struct uart_port *port); 57 58 #else 59 60 static inline 61 int 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