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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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/* * 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/* * Internal flags used only by kernel (read-only) * * WARNING: These flags are no longer used and have been superceded by the * TTY_PORT_ flags in the iflags field (and not userspace-visible) */#ifndef __KERNEL__#define ASYNCB_INITIALIZED 31 /* Serial port was initialized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_SPLIT_TERMIOS | 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