1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _LINUX_TTY_FLAGS_H 3 #define _LINUX_TTY_FLAGS_H 4 5 /* 6 * Definitions for async_struct (and serial_struct) flags field also 7 * shared by the tty_port flags structures. 8 * 9 * Define ASYNCB_* for convenient use with {test,set,clear}_bit. 10 * 11 * Bits [0..ASYNCB_LAST_USER] are userspace defined/visible/changeable 12 * [x] in the bit comments indicates the flag is defunct and no longer used. 13 */ 14 #define ASYNCB_HUP_NOTIFY 0 /* Notify getty on hangups and closes 15 * on the callout port */ 16 #define ASYNCB_FOURPORT 1 /* Set OUT1, OUT2 per AST Fourport settings */ 17 #define ASYNCB_SAK 2 /* Secure Attention Key (Orange book) */ 18 #define ASYNCB_SPLIT_TERMIOS 3 /* [x] Separate termios for dialin/callout */ 19 #define ASYNCB_SPD_HI 4 /* Use 57600 instead of 38400 bps */ 20 #define ASYNCB_SPD_VHI 5 /* Use 115200 instead of 38400 bps */ 21 #define ASYNCB_SKIP_TEST 6 /* Skip UART test during autoconfiguration */ 22 #define ASYNCB_AUTO_IRQ 7 /* Do automatic IRQ during 23 * autoconfiguration */ 24 #define ASYNCB_SESSION_LOCKOUT 8 /* [x] Lock out cua opens based on session */ 25 #define ASYNCB_PGRP_LOCKOUT 9 /* [x] Lock out cua opens based on pgrp */ 26 #define ASYNCB_CALLOUT_NOHUP 10 /* [x] Don't do hangups for cua device */ 27 #define ASYNCB_HARDPPS_CD 11 /* Call hardpps when CD goes high */ 28 #define ASYNCB_SPD_SHI 12 /* Use 230400 instead of 38400 bps */ 29 #define ASYNCB_LOW_LATENCY 13 /* Request low latency behaviour */ 30 #define ASYNCB_BUGGY_UART 14 /* This is a buggy UART, skip some safety 31 * checks. Note: can be dangerous! */ 32 #define ASYNCB_AUTOPROBE 15 /* [x] Port was autoprobed by PCI/PNP code */ 33 #define ASYNCB_MAGIC_MULTIPLIER 16 /* Use special CLK or divisor */ 34 #define ASYNCB_LAST_USER 16 35 36 /* 37 * Internal flags used only by kernel (read-only) 38 * 39 * WARNING: These flags are no longer used and have been superceded by the 40 * TTY_PORT_ flags in the iflags field (and not userspace-visible) 41 */ 42 #ifndef _KERNEL_ 43 #define ASYNCB_INITIALIZED 31 /* Serial port was initialized */ 44 #define ASYNCB_SUSPENDED 30 /* Serial port is suspended */ 45 #define ASYNCB_NORMAL_ACTIVE 29 /* Normal device is active */ 46 #define ASYNCB_BOOT_AUTOCONF 28 /* Autoconfigure port on bootup */ 47 #define ASYNCB_CLOSING 27 /* Serial port is closing */ 48 #define ASYNCB_CTS_FLOW 26 /* Do CTS flow control */ 49 #define ASYNCB_CHECK_CD 25 /* i.e., CLOCAL */ 50 #define ASYNCB_SHARE_IRQ 24 /* for multifunction cards, no longer used */ 51 #define ASYNCB_CONS_FLOW 23 /* flow control for console */ 52 #define ASYNCB_FIRST_KERNEL 22 53 #endif 54 55 /* Masks */ 56 #define ASYNC_HUP_NOTIFY (1U << ASYNCB_HUP_NOTIFY) 57 #define ASYNC_SUSPENDED (1U << ASYNCB_SUSPENDED) 58 #define ASYNC_FOURPORT (1U << ASYNCB_FOURPORT) 59 #define ASYNC_SAK (1U << ASYNCB_SAK) 60 #define ASYNC_SPLIT_TERMIOS (1U << ASYNCB_SPLIT_TERMIOS) 61 #define ASYNC_SPD_HI (1U << ASYNCB_SPD_HI) 62 #define ASYNC_SPD_VHI (1U << ASYNCB_SPD_VHI) 63 #define ASYNC_SKIP_TEST (1U << ASYNCB_SKIP_TEST) 64 #define ASYNC_AUTO_IRQ (1U << ASYNCB_AUTO_IRQ) 65 #define ASYNC_SESSION_LOCKOUT (1U << ASYNCB_SESSION_LOCKOUT) 66 #define ASYNC_PGRP_LOCKOUT (1U << ASYNCB_PGRP_LOCKOUT) 67 #define ASYNC_CALLOUT_NOHUP (1U << ASYNCB_CALLOUT_NOHUP) 68 #define ASYNC_HARDPPS_CD (1U << ASYNCB_HARDPPS_CD) 69 #define ASYNC_SPD_SHI (1U << ASYNCB_SPD_SHI) 70 #define ASYNC_LOW_LATENCY (1U << ASYNCB_LOW_LATENCY) 71 #define ASYNC_BUGGY_UART (1U << ASYNCB_BUGGY_UART) 72 #define ASYNC_AUTOPROBE (1U << ASYNCB_AUTOPROBE) 73 #define ASYNC_MAGIC_MULTIPLIER (1U << ASYNCB_MAGIC_MULTIPLIER) 74 75 #define ASYNC_FLAGS ((1U << (ASYNCB_LAST_USER + 1)) - 1) 76 #define ASYNC_DEPRECATED (ASYNC_SESSION_LOCKOUT | ASYNC_PGRP_LOCKOUT | \ 77 ASYNC_CALLOUT_NOHUP | ASYNC_AUTOPROBE) 78 #define ASYNC_USR_MASK (ASYNC_SPD_MASK|ASYNC_CALLOUT_NOHUP| \ 79 ASYNC_LOW_LATENCY) 80 #define ASYNC_SPD_CUST (ASYNC_SPD_HI|ASYNC_SPD_VHI) 81 #define ASYNC_SPD_WARP (ASYNC_SPD_HI|ASYNC_SPD_SHI) 82 #define ASYNC_SPD_MASK (ASYNC_SPD_HI|ASYNC_SPD_VHI|ASYNC_SPD_SHI) 83 84 #ifndef _KERNEL_ 85 /* These flags are no longer used (and were always masked from userspace) */ 86 #define ASYNC_INITIALIZED (1U << ASYNCB_INITIALIZED) 87 #define ASYNC_NORMAL_ACTIVE (1U << ASYNCB_NORMAL_ACTIVE) 88 #define ASYNC_BOOT_AUTOCONF (1U << ASYNCB_BOOT_AUTOCONF) 89 #define ASYNC_CLOSING (1U << ASYNCB_CLOSING) 90 #define ASYNC_CTS_FLOW (1U << ASYNCB_CTS_FLOW) 91 #define ASYNC_CHECK_CD (1U << ASYNCB_CHECK_CD) 92 #define ASYNC_SHARE_IRQ (1U << ASYNCB_SHARE_IRQ) 93 #define ASYNC_CONS_FLOW (1U << ASYNCB_CONS_FLOW) 94 #define ASYNC_INTERNAL_FLAGS (~((1U << ASYNCB_FIRST_KERNEL) - 1)) 95 #endif 96 97 #endif 98
