/* 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/types.h>
|
|
#include <linux/tty_flags.h>
|
|
|
struct serial_struct {
|
int type;
|
int line;
|
unsigned int port;
|
int irq;
|
int flags;
|
int xmit_fifo_size;
|
int custom_divisor;
|
int baud_base;
|
unsigned short close_delay;
|
char io_type;
|
char reserved_char[1];
|
int hub6;
|
unsigned short closing_wait; /* time to wait before closing */
|
unsigned short closing_wait2; /* no longer used... */
|
unsigned char *iomem_base;
|
unsigned short iomem_reg_shift;
|
unsigned int port_high;
|
unsigned long iomap_base; /* cookie passed into ioremap */
|
};
|
|
/*
|
* 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 0
|
#define ASYNC_CLOSING_WAIT_NONE 65535
|
|
/*
|
* These are the supported serial types.
|
*/
|
#define PORT_UNKNOWN 0
|
#define PORT_8250 1
|
#define PORT_16450 2
|
#define PORT_16550 3
|
#define PORT_16550A 4
|
#define PORT_CIRRUS 5 /* usurped by cyclades.c */
|
#define PORT_16650 6
|
#define PORT_16650V2 7
|
#define PORT_16750 8
|
#define PORT_STARTECH 9 /* usurped by cyclades.c */
|
#define PORT_16C950 10 /* Oxford Semiconductor */
|
#define PORT_16654 11
|
#define PORT_16850 12
|
#define PORT_RSA 13 /* RSA-DV II/S card */
|
#define PORT_MAX 13
|
|
#define SERIAL_IO_PORT 0
|
#define SERIAL_IO_HUB6 1
|
#define SERIAL_IO_MEM 2
|
#define SERIAL_IO_MEM32 3
|
#define SERIAL_IO_AU 4
|
#define SERIAL_IO_TSI 5
|
#define SERIAL_IO_MEM32BE 6
|
#define SERIAL_IO_MEM16 7
|
|
#define UART_CLEAR_FIFO 0x01
|
#define UART_USE_FIFO 0x02
|
#define UART_STARTECH 0x04
|
#define UART_NATSEMI 0x08
|
|
|
/*
|
* Multiport serial configuration structure --- external structure
|
*/
|
struct serial_multiport_struct {
|
int irq;
|
int port1;
|
unsigned char mask1, match1;
|
int port2;
|
unsigned char mask2, match2;
|
int port3;
|
unsigned char mask3, match3;
|
int port4;
|
unsigned char mask4, match4;
|
int port_monitor;
|
int reserved[32];
|
};
|
|
/*
|
* Serial input interrupt line counters -- external structure
|
* Four lines can interrupt: CTS, DSR, RI, DCD
|
*/
|
struct serial_icounter_struct {
|
int cts, dsr, rng, dcd;
|
int rx, tx;
|
int frame, overrun, parity, brk;
|
int buf_overrun;
|
int reserved[9];
|
};
|
|
/*
|
* 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.
|
*/
|
|
struct serial_rs485 {
|
__u32 flags; /* RS485 feature flags */
|
#define SER_RS485_ENABLED (1 << 0) /* If enabled */
|
#define SER_RS485_RTS_ON_SEND (1 << 1) /* Logical level for
|
RTS pin when
|
sending */
|
#define SER_RS485_RTS_AFTER_SEND (1 << 2) /* Logical level for
|
RTS pin after sent*/
|
#define SER_RS485_RX_DURING_TX (1 << 4)
|
#define SER_RS485_TERMINATE_BUS (1 << 5) /* Enable bus
|
termination
|
(if supported) */
|
__u32 delay_rts_before_send; /* Delay before send (milliseconds) */
|
__u32 delay_rts_after_send; /* Delay after send (milliseconds) */
|
__u32 padding[5]; /* Memory is cheap, new structs
|
are a royal PITA .. */
|
};
|
|
/*
|
* 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 {
|
__u32 flags; /* ISO7816 feature flags */
|
#define SER_ISO7816_ENABLED (1 << 0)
|
#define SER_ISO7816_T_PARAM (0x0f << 4)
|
#define SER_ISO7816_T(t) (((t) & 0x0f) << 4)
|
__u32 tg;
|
__u32 sc_fi;
|
__u32 sc_di;
|
__u32 clk;
|
__u32 reserved[5];
|
};
|
|
#endif /* _UAPI_LINUX_SERIAL_H */
|
