/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */ /* * include/linux/serial.h * * Copyright (C) 1992 by Theodore Ts'o. * * Redistribution of this file is permitted under the terms of the GNU * Public License (GPL) */ #ifndef _UAPI_LINUX_SERIAL_H #define _UAPI_LINUX_SERIAL_H #include <linux/const.h> #include <linux/types.h> #include <linux/tty_flags.h> struct serial_struct { … }; /* * For the close wait times, 0 means wait forever for serial port to * flush its output. 65535 means don't wait at all. */ #define ASYNC_CLOSING_WAIT_INF … #define ASYNC_CLOSING_WAIT_NONE … /* * These are the supported serial types. */ #define PORT_UNKNOWN … #define PORT_8250 … #define PORT_16450 … #define PORT_16550 … #define PORT_16550A … #define PORT_CIRRUS … #define PORT_16650 … #define PORT_16650V2 … #define PORT_16750 … #define PORT_STARTECH … #define PORT_16C950 … #define PORT_16654 … #define PORT_16850 … #define PORT_RSA … #define PORT_MAX … #define SERIAL_IO_PORT … #define SERIAL_IO_HUB6 … #define SERIAL_IO_MEM … #define SERIAL_IO_MEM32 … #define SERIAL_IO_AU … #define SERIAL_IO_TSI … #define SERIAL_IO_MEM32BE … #define SERIAL_IO_MEM16 … #define UART_CLEAR_FIFO … #define UART_USE_FIFO … #define UART_STARTECH … #define UART_NATSEMI … /* * Multiport serial configuration structure --- external structure */ struct serial_multiport_struct { … }; /* * Serial input interrupt line counters -- external structure * Four lines can interrupt: CTS, DSR, RI, DCD */ struct serial_icounter_struct { … }; /** * struct serial_rs485 - serial interface for controlling RS485 settings. * @flags: RS485 feature flags. * @delay_rts_before_send: Delay before send (milliseconds). * @delay_rts_after_send: Delay after send (milliseconds). * @addr_recv: Receive filter for RS485 addressing mode * (used only when %SER_RS485_ADDR_RECV is set). * @addr_dest: Destination address for RS485 addressing mode * (used only when %SER_RS485_ADDR_DEST is set). * @padding0: Padding (set to zero). * @padding1: Padding (set to zero). * @padding: Deprecated, use @padding0 and @padding1 instead. * Do not use with @addr_recv and @addr_dest (due to * overlap). * * Serial interface for controlling RS485 settings on chips with suitable * support. Set with TIOCSRS485 and get with TIOCGRS485 if supported by your * platform. The set function returns the new state, with any unsupported bits * reverted appropriately. * * The flag bits are: * * * %SER_RS485_ENABLED - RS485 enabled. * * %SER_RS485_RTS_ON_SEND - Logical level for RTS pin when sending. * * %SER_RS485_RTS_AFTER_SEND - Logical level for RTS pin after sent. * * %SER_RS485_RX_DURING_TX - Full-duplex RS485 line. * * %SER_RS485_TERMINATE_BUS - Enable bus termination (if supported). * * %SER_RS485_ADDRB - Enable RS485 addressing mode. * * %SER_RS485_ADDR_RECV - Receive address filter (enables @addr_recv). Requires %SER_RS485_ADDRB. * * %SER_RS485_ADDR_DEST - Destination address (enables @addr_dest). Requires %SER_RS485_ADDRB. * * %SER_RS485_MODE_RS422 - Enable RS422. Requires %SER_RS485_ENABLED. */ struct serial_rs485 { … }; /* * Serial interface for controlling ISO7816 settings on chips with suitable * support. Set with TIOCSISO7816 and get with TIOCGISO7816 if supported by * your platform. */ struct serial_iso7816 { … }; #endif /* _UAPI_LINUX_SERIAL_H */
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