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152 lines
3.7 KiB
152 lines
3.7 KiB
/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */ |
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/* |
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* include/linux/serial.h |
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* |
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* Copyright (C) 1992 by Theodore Ts'o. |
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* |
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* Redistribution of this file is permitted under the terms of the GNU |
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* Public License (GPL) |
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*/ |
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#ifndef _UAPI_LINUX_SERIAL_H |
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#define _UAPI_LINUX_SERIAL_H |
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#include <linux/types.h> |
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#include <linux/tty_flags.h> |
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struct serial_struct { |
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int type; |
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int line; |
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unsigned int port; |
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int irq; |
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int flags; |
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int xmit_fifo_size; |
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int custom_divisor; |
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int baud_base; |
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unsigned short close_delay; |
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char io_type; |
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char reserved_char[1]; |
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int hub6; |
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unsigned short closing_wait; /* time to wait before closing */ |
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unsigned short closing_wait2; /* no longer used... */ |
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unsigned char *iomem_base; |
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unsigned short iomem_reg_shift; |
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unsigned int port_high; |
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unsigned long iomap_base; /* cookie passed into ioremap */ |
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}; |
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/* |
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* For the close wait times, 0 means wait forever for serial port to |
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* flush its output. 65535 means don't wait at all. |
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*/ |
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#define ASYNC_CLOSING_WAIT_INF 0 |
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#define ASYNC_CLOSING_WAIT_NONE 65535 |
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/* |
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* These are the supported serial types. |
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*/ |
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#define PORT_UNKNOWN 0 |
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#define PORT_8250 1 |
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#define PORT_16450 2 |
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#define PORT_16550 3 |
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#define PORT_16550A 4 |
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#define PORT_CIRRUS 5 |
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#define PORT_16650 6 |
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#define PORT_16650V2 7 |
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#define PORT_16750 8 |
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#define PORT_STARTECH 9 |
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#define PORT_16C950 10 /* Oxford Semiconductor */ |
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#define PORT_16654 11 |
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#define PORT_16850 12 |
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#define PORT_RSA 13 /* RSA-DV II/S card */ |
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#define PORT_MAX 13 |
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#define SERIAL_IO_PORT 0 |
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#define SERIAL_IO_HUB6 1 |
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#define SERIAL_IO_MEM 2 |
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#define SERIAL_IO_MEM32 3 |
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#define SERIAL_IO_AU 4 |
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#define SERIAL_IO_TSI 5 |
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#define SERIAL_IO_MEM32BE 6 |
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#define SERIAL_IO_MEM16 7 |
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#define UART_CLEAR_FIFO 0x01 |
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#define UART_USE_FIFO 0x02 |
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#define UART_STARTECH 0x04 |
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#define UART_NATSEMI 0x08 |
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/* |
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* Multiport serial configuration structure --- external structure |
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*/ |
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struct serial_multiport_struct { |
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int irq; |
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int port1; |
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unsigned char mask1, match1; |
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int port2; |
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unsigned char mask2, match2; |
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int port3; |
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unsigned char mask3, match3; |
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int port4; |
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unsigned char mask4, match4; |
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int port_monitor; |
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int reserved[32]; |
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}; |
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/* |
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* Serial input interrupt line counters -- external structure |
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* Four lines can interrupt: CTS, DSR, RI, DCD |
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*/ |
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struct serial_icounter_struct { |
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int cts, dsr, rng, dcd; |
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int rx, tx; |
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int frame, overrun, parity, brk; |
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int buf_overrun; |
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int reserved[9]; |
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}; |
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/* |
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* Serial interface for controlling RS485 settings on chips with suitable |
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* support. Set with TIOCSRS485 and get with TIOCGRS485 if supported by your |
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* platform. The set function returns the new state, with any unsupported bits |
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* reverted appropriately. |
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*/ |
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struct serial_rs485 { |
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__u32 flags; /* RS485 feature flags */ |
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#define SER_RS485_ENABLED (1 << 0) /* If enabled */ |
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#define SER_RS485_RTS_ON_SEND (1 << 1) /* Logical level for |
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RTS pin when |
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sending */ |
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#define SER_RS485_RTS_AFTER_SEND (1 << 2) /* Logical level for |
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RTS pin after sent*/ |
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#define SER_RS485_RX_DURING_TX (1 << 4) |
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#define SER_RS485_TERMINATE_BUS (1 << 5) /* Enable bus |
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termination |
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(if supported) */ |
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__u32 delay_rts_before_send; /* Delay before send (milliseconds) */ |
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__u32 delay_rts_after_send; /* Delay after send (milliseconds) */ |
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__u32 padding[5]; /* Memory is cheap, new structs |
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are a royal PITA .. */ |
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}; |
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/* |
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* Serial interface for controlling ISO7816 settings on chips with suitable |
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* support. Set with TIOCSISO7816 and get with TIOCGISO7816 if supported by |
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* your platform. |
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*/ |
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struct serial_iso7816 { |
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__u32 flags; /* ISO7816 feature flags */ |
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#define SER_ISO7816_ENABLED (1 << 0) |
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#define SER_ISO7816_T_PARAM (0x0f << 4) |
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#define SER_ISO7816_T(t) (((t) & 0x0f) << 4) |
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__u32 tg; |
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__u32 sc_fi; |
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__u32 sc_di; |
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__u32 clk; |
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__u32 reserved[5]; |
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}; |
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#endif /* _UAPI_LINUX_SERIAL_H */
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