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Edit File : tty_flags.h \| Size : 4.42 KB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note / #ifndef _LINUX_TTY_FLAGS_H #define _LINUX_TTY_FLAGS_H / * Definitions for async_struct (and serial_struct) flags field also * shared by the tty_port flags structures. * * Define ASYNCB_* for convenient use with {test,set,clear}_bit. * * Bits [0..ASYNCB_LAST_USER] are userspace defined/visible/changeable * [x] in the bit comments indicates the flag is defunct and no longer used. / #define ASYNCB_HUP_NOTIFY 0 / Notify getty on hangups and closes * on the callout port / #define ASYNCB_FOURPORT 1 / Set OUT1, OUT2 per AST Fourport settings / #define ASYNCB_SAK 2 / Secure Attention Key (Orange book) / #define ASYNCB_SPLIT_TERMIOS 3 / [x] Separate termios for dialin/callout / #define ASYNCB_SPD_HI 4 / Use 57600 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 / [x] Lock out cua opens based on session / #define ASYNCB_PGRP_LOCKOUT 9 / [x] Lock out cua opens based on pgrp / #define ASYNCB_CALLOUT_NOHUP 10 / [x] 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 / [x] Port was autoprobed by PCI/PNP code / #define ASYNCB_MAGIC_MULTIPLIER 16 / Use special CLK or divisor / #define ASYNCB_LAST_USER 16 / * Internal flags used only by kernel (read-only) * * WARNING: These flags are no longer used and have been superceded by the * TTY_PORT_ flags in the iflags field (and not userspace-visible) / #ifndef _KERNEL_ #define ASYNCB_INITIALIZED 31 / Serial port was initialized /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_FIRST_KERNEL 22 #endif / Masks / #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_MAGIC_MULTIPLIER (1U << ASYNCB_MAGIC_MULTIPLIER) #define ASYNC_FLAGS ((1U << (ASYNCB_LAST_USER + 1)) - 1) #define ASYNC_DEPRECATED (ASYNC_SESSION_LOCKOUT \| ASYNC_PGRP_LOCKOUT \| \ ASYNC_CALLOUT_NOHUP \| ASYNC_AUTOPROBE) #define ASYNC_USR_MASK (ASYNC_SPD_MASK\|ASYNC_CALLOUT_NOHUP\| \ 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) #ifndef _KERNEL_ / These flags are no longer used (and were always masked from userspace) */ #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_INTERNAL_FLAGS (~((1U << ASYNCB_FIRST_KERNEL) - 1)) #endif #endif Back

Edit File : tty_flags.h | Size : 4.42 KB

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _LINUX_TTY_FLAGS_H
#define _LINUX_TTY_FLAGS_H

/*
 * Definitions for async_struct (and serial_struct) flags field also
 * shared by the tty_port flags structures.
 *
 * Define ASYNCB_* for convenient use with {test,set,clear}_bit.
 *
 * Bits [0..ASYNCB_LAST_USER] are userspace defined/visible/changeable
 * [x] in the bit comments indicates the flag is defunct and no longer used.
 */
#define ASYNCB_HUP_NOTIFY	 0 /* Notify getty on hangups and closes
				    * on the callout port */
#define ASYNCB_FOURPORT		 1 /* Set OUT1, OUT2 per AST Fourport settings */
#define ASYNCB_SAK		 2 /* Secure Attention Key (Orange book) */
#define ASYNCB_SPLIT_TERMIOS	 3 /* [x] Separate termios for dialin/callout */
#define ASYNCB_SPD_HI		 4 /* Use 57600 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 /* [x] Lock out cua opens based on session */
#define ASYNCB_PGRP_LOCKOUT	 9 /* [x] Lock out cua opens based on pgrp */
#define ASYNCB_CALLOUT_NOHUP	10 /* [x] 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 /* [x] Port was autoprobed by PCI/PNP code */
#define ASYNCB_MAGIC_MULTIPLIER	16 /* Use special CLK or divisor */
#define ASYNCB_LAST_USER	16

/*
 * Internal flags used only by kernel (read-only)
 *
 * WARNING: These flags are no longer used and have been superceded by the
 *	    TTY_PORT_ flags in the iflags field (and not userspace-visible)
 */
#ifndef _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_FIRST_KERNEL	22
#endif

/* Masks */
#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_MAGIC_MULTIPLIER	(1U << ASYNCB_MAGIC_MULTIPLIER)

#define ASYNC_FLAGS		((1U << (ASYNCB_LAST_USER + 1)) - 1)
#define ASYNC_DEPRECATED	(ASYNC_SESSION_LOCKOUT | ASYNC_PGRP_LOCKOUT | \
		ASYNC_CALLOUT_NOHUP | ASYNC_AUTOPROBE)
#define ASYNC_USR_MASK		(ASYNC_SPD_MASK|ASYNC_CALLOUT_NOHUP| \
		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)

#ifndef _KERNEL_
/* These flags are no longer used (and were always masked from userspace) */
#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_INTERNAL_FLAGS	(~((1U << ASYNCB_FIRST_KERNEL) - 1))
#endif

#endif

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