mipsel-buildroot-linux-uclibc/sysroot/usr/include/linux/serial.h - toolchains/bruno - Git at Google

 /*
  * 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 _LINUX_SERIAL_H
 #define _LINUX_SERIAL_H

 #include <linux/types.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

 struct serial_uart_config {
 	char	*name;
 	int	dfl_xmit_fifo_size;
 	int	flags;
 };

 #define UART_CLEAR_FIFO		0x01
 #define UART_USE_FIFO		0x02
 #define UART_STARTECH		0x04
 #define UART_NATSEMI		0x08

 /*
  * Definitions for async_struct (and serial_struct) flags field
  *
  * Define ASYNCB_* for convenient use with {test,set,clear}_bit.
  */
 #define ASYNCB_HUP_NOTIFY	 0 /* Notify getty on hangups and closes
 				    * on the callout port */
 #define ASYNCB_FOURPORT		 1 /* Set OU1, OUT2 per AST Fourport settings */
 #define ASYNCB_SAK		 2 /* Secure Attention Key (Orange book) */
 #define ASYNCB_SPLIT_TERMIOS	 3 /* Separate termios for dialin/callout */
 #define ASYNCB_SPD_HI		 4 /* Use 56000 instead of 38400 bps */
 #define ASYNCB_SPD_VHI		 5 /* Use 115200 instead of 38400 bps */
 #define ASYNCB_SKIP_TEST	 6 /* Skip UART test during autoconfiguration */
 #define ASYNCB_AUTO_IRQ		 7 /* Do automatic IRQ during
 				    * autoconfiguration */
 #define ASYNCB_SESSION_LOCKOUT	 8 /* Lock out cua opens based on session */
 #define ASYNCB_PGRP_LOCKOUT	 9 /* Lock out cua opens based on pgrp */
 #define ASYNCB_CALLOUT_NOHUP	10 /* Don't do hangups for cua device */
 #define ASYNCB_HARDPPS_CD	11 /* Call hardpps when CD goes high  */
 #define ASYNCB_SPD_SHI		12 /* Use 230400 instead of 38400 bps */
 #define ASYNCB_LOW_LATENCY	13 /* Request low latency behaviour */
 #define ASYNCB_BUGGY_UART	14 /* This is a buggy UART, skip some safety
 				    * checks.  Note: can be dangerous! */
 #define ASYNCB_AUTOPROBE	15 /* Port was autoprobed by PCI or PNP code */
 #define ASYNCB_LAST_USER	15

 /* Internal flags used only by kernel */
 #define ASYNCB_INITIALIZED	31 /* Serial port was initialized */
 #define ASYNCB_SUSPENDED	30 /* Serial port is suspended */
 #define ASYNCB_NORMAL_ACTIVE	29 /* Normal device is active */
 #define ASYNCB_BOOT_AUTOCONF	28 /* Autoconfigure port on bootup */
 #define ASYNCB_CLOSING		27 /* Serial port is closing */
 #define ASYNCB_CTS_FLOW		26 /* Do CTS flow control */
 #define ASYNCB_CHECK_CD		25 /* i.e., CLOCAL */
 #define ASYNCB_SHARE_IRQ	24 /* for multifunction cards, no longer used */
 #define ASYNCB_CONS_FLOW	23 /* flow control for console  */
 #define ASYNCB_BOOT_ONLYMCA	22 /* Probe only if MCA bus */
 #define ASYNCB_FIRST_KERNEL	22

 #define ASYNC_HUP_NOTIFY	(1U << ASYNCB_HUP_NOTIFY)
 #define ASYNC_SUSPENDED		(1U << ASYNCB_SUSPENDED)
 #define ASYNC_FOURPORT		(1U << ASYNCB_FOURPORT)
 #define ASYNC_SAK		(1U << ASYNCB_SAK)
 #define ASYNC_SPLIT_TERMIOS	(1U << ASYNCB_SPLIT_TERMIOS)
 #define ASYNC_SPD_HI		(1U << ASYNCB_SPD_HI)
 #define ASYNC_SPD_VHI		(1U << ASYNCB_SPD_VHI)
 #define ASYNC_SKIP_TEST		(1U << ASYNCB_SKIP_TEST)
 #define ASYNC_AUTO_IRQ		(1U << ASYNCB_AUTO_IRQ)
 #define ASYNC_SESSION_LOCKOUT	(1U << ASYNCB_SESSION_LOCKOUT)
 #define ASYNC_PGRP_LOCKOUT	(1U << ASYNCB_PGRP_LOCKOUT)
 #define ASYNC_CALLOUT_NOHUP	(1U << ASYNCB_CALLOUT_NOHUP)
 #define ASYNC_HARDPPS_CD	(1U << ASYNCB_HARDPPS_CD)
 #define ASYNC_SPD_SHI		(1U << ASYNCB_SPD_SHI)
 #define ASYNC_LOW_LATENCY	(1U << ASYNCB_LOW_LATENCY)
 #define ASYNC_BUGGY_UART	(1U << ASYNCB_BUGGY_UART)
 #define ASYNC_AUTOPROBE		(1U << ASYNCB_AUTOPROBE)

 #define ASYNC_FLAGS		((1U << (ASYNCB_LAST_USER + 1)) - 1)
 #define ASYNC_USR_MASK		(ASYNC_SPD_HI|ASYNC_SPD_VHI| \
 		ASYNC_CALLOUT_NOHUP|ASYNC_SPD_SHI|ASYNC_LOW_LATENCY)
 #define ASYNC_SPD_CUST		(ASYNC_SPD_HI|ASYNC_SPD_VHI)
 #define ASYNC_SPD_WARP		(ASYNC_SPD_HI|ASYNC_SPD_SHI)
 #define ASYNC_SPD_MASK		(ASYNC_SPD_HI|ASYNC_SPD_VHI|ASYNC_SPD_SHI)

 #define ASYNC_INITIALIZED	(1U << ASYNCB_INITIALIZED)
 #define ASYNC_NORMAL_ACTIVE	(1U << ASYNCB_NORMAL_ACTIVE)
 #define ASYNC_BOOT_AUTOCONF	(1U << ASYNCB_BOOT_AUTOCONF)
 #define ASYNC_CLOSING		(1U << ASYNCB_CLOSING)
 #define ASYNC_CTS_FLOW		(1U << ASYNCB_CTS_FLOW)
 #define ASYNC_CHECK_CD		(1U << ASYNCB_CHECK_CD)
 #define ASYNC_SHARE_IRQ		(1U << ASYNCB_SHARE_IRQ)
 #define ASYNC_CONS_FLOW		(1U << ASYNCB_CONS_FLOW)
 #define ASYNC_BOOT_ONLYMCA	(1U << ASYNCB_BOOT_ONLYMCA)
 #define ASYNC_INTERNAL_FLAGS	(~((1U << ASYNCB_FIRST_KERNEL) - 1))

 /*
  * 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)
 	__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 .. */
 };

 #endif /* _LINUX_SERIAL_H */
	/*
	* 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 _LINUX_SERIAL_H
	#define _LINUX_SERIAL_H

	#include <linux/types.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

	struct serial_uart_config {
	char *name;
	int dfl_xmit_fifo_size;
	int flags;
	};

	#define UART_CLEAR_FIFO 0x01
	#define UART_USE_FIFO 0x02
	#define UART_STARTECH 0x04
	#define UART_NATSEMI 0x08

	/*
	* Definitions for async_struct (and serial_struct) flags field
	*
	* Define ASYNCB_* for convenient use with {test,set,clear}_bit.
	*/
	#define ASYNCB_HUP_NOTIFY 0 /* Notify getty on hangups and closes
	* on the callout port */
	#define ASYNCB_FOURPORT 1 /* Set OU1, OUT2 per AST Fourport settings */
	#define ASYNCB_SAK 2 /* Secure Attention Key (Orange book) */
	#define ASYNCB_SPLIT_TERMIOS 3 /* Separate termios for dialin/callout */
	#define ASYNCB_SPD_HI 4 /* Use 56000 instead of 38400 bps */
	#define ASYNCB_SPD_VHI 5 /* Use 115200 instead of 38400 bps */
	#define ASYNCB_SKIP_TEST 6 /* Skip UART test during autoconfiguration */
	#define ASYNCB_AUTO_IRQ 7 /* Do automatic IRQ during
	* autoconfiguration */
	#define ASYNCB_SESSION_LOCKOUT 8 /* Lock out cua opens based on session */
	#define ASYNCB_PGRP_LOCKOUT 9 /* Lock out cua opens based on pgrp */
	#define ASYNCB_CALLOUT_NOHUP 10 /* Don't do hangups for cua device */
	#define ASYNCB_HARDPPS_CD 11 /* Call hardpps when CD goes high */
	#define ASYNCB_SPD_SHI 12 /* Use 230400 instead of 38400 bps */
	#define ASYNCB_LOW_LATENCY 13 /* Request low latency behaviour */
	#define ASYNCB_BUGGY_UART 14 /* This is a buggy UART, skip some safety
	* checks. Note: can be dangerous! */
	#define ASYNCB_AUTOPROBE 15 /* Port was autoprobed by PCI or PNP code */
	#define ASYNCB_LAST_USER 15

	/* Internal flags used only by kernel */
	#define ASYNCB_INITIALIZED 31 /* Serial port was initialized */
	#define ASYNCB_SUSPENDED 30 /* Serial port is suspended */
	#define ASYNCB_NORMAL_ACTIVE 29 /* Normal device is active */
	#define ASYNCB_BOOT_AUTOCONF 28 /* Autoconfigure port on bootup */
	#define ASYNCB_CLOSING 27 /* Serial port is closing */
	#define ASYNCB_CTS_FLOW 26 /* Do CTS flow control */
	#define ASYNCB_CHECK_CD 25 /* i.e., CLOCAL */
	#define ASYNCB_SHARE_IRQ 24 /* for multifunction cards, no longer used */
	#define ASYNCB_CONS_FLOW 23 /* flow control for console */
	#define ASYNCB_BOOT_ONLYMCA 22 /* Probe only if MCA bus */
	#define ASYNCB_FIRST_KERNEL 22

	#define ASYNC_HUP_NOTIFY (1U << ASYNCB_HUP_NOTIFY)
	#define ASYNC_SUSPENDED (1U << ASYNCB_SUSPENDED)
	#define ASYNC_FOURPORT (1U << ASYNCB_FOURPORT)
	#define ASYNC_SAK (1U << ASYNCB_SAK)
	#define ASYNC_SPLIT_TERMIOS (1U << ASYNCB_SPLIT_TERMIOS)
	#define ASYNC_SPD_HI (1U << ASYNCB_SPD_HI)
	#define ASYNC_SPD_VHI (1U << ASYNCB_SPD_VHI)
	#define ASYNC_SKIP_TEST (1U << ASYNCB_SKIP_TEST)
	#define ASYNC_AUTO_IRQ (1U << ASYNCB_AUTO_IRQ)
	#define ASYNC_SESSION_LOCKOUT (1U << ASYNCB_SESSION_LOCKOUT)
	#define ASYNC_PGRP_LOCKOUT (1U << ASYNCB_PGRP_LOCKOUT)
	#define ASYNC_CALLOUT_NOHUP (1U << ASYNCB_CALLOUT_NOHUP)
	#define ASYNC_HARDPPS_CD (1U << ASYNCB_HARDPPS_CD)
	#define ASYNC_SPD_SHI (1U << ASYNCB_SPD_SHI)
	#define ASYNC_LOW_LATENCY (1U << ASYNCB_LOW_LATENCY)
	#define ASYNC_BUGGY_UART (1U << ASYNCB_BUGGY_UART)
	#define ASYNC_AUTOPROBE (1U << ASYNCB_AUTOPROBE)

	#define ASYNC_FLAGS ((1U << (ASYNCB_LAST_USER + 1)) - 1)
	#define ASYNC_USR_MASK (ASYNC_SPD_HI\|ASYNC_SPD_VHI\| \
	ASYNC_CALLOUT_NOHUP\|ASYNC_SPD_SHI\|ASYNC_LOW_LATENCY)
	#define ASYNC_SPD_CUST (ASYNC_SPD_HI\|ASYNC_SPD_VHI)
	#define ASYNC_SPD_WARP (ASYNC_SPD_HI\|ASYNC_SPD_SHI)
	#define ASYNC_SPD_MASK (ASYNC_SPD_HI\|ASYNC_SPD_VHI\|ASYNC_SPD_SHI)

	#define ASYNC_INITIALIZED (1U << ASYNCB_INITIALIZED)
	#define ASYNC_NORMAL_ACTIVE (1U << ASYNCB_NORMAL_ACTIVE)
	#define ASYNC_BOOT_AUTOCONF (1U << ASYNCB_BOOT_AUTOCONF)
	#define ASYNC_CLOSING (1U << ASYNCB_CLOSING)
	#define ASYNC_CTS_FLOW (1U << ASYNCB_CTS_FLOW)
	#define ASYNC_CHECK_CD (1U << ASYNCB_CHECK_CD)
	#define ASYNC_SHARE_IRQ (1U << ASYNCB_SHARE_IRQ)
	#define ASYNC_CONS_FLOW (1U << ASYNCB_CONS_FLOW)
	#define ASYNC_BOOT_ONLYMCA (1U << ASYNCB_BOOT_ONLYMCA)
	#define ASYNC_INTERNAL_FLAGS (~((1U << ASYNCB_FIRST_KERNEL) - 1))

	/*
	* 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)
	__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 .. */
	};

	#endif /* _LINUX_SERIAL_H */