1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _LINUX_TTY_FLAGS_H 2 #ifndef _LINUX_TTY_FLAGS_H
3 #define _LINUX_TTY_FLAGS_H 3 #define _LINUX_TTY_FLAGS_H
4 4
5 /* 5 /*
6 * Definitions for async_struct (and serial_st 6 * Definitions for async_struct (and serial_struct) flags field also
7 * shared by the tty_port flags structures. 7 * shared by the tty_port flags structures.
8 * 8 *
9 * Define ASYNCB_* for convenient use with {te 9 * Define ASYNCB_* for convenient use with {test,set,clear}_bit.
10 * 10 *
11 * Bits [0..ASYNCB_LAST_USER] are userspace de 11 * Bits [0..ASYNCB_LAST_USER] are userspace defined/visible/changeable
12 * [x] in the bit comments indicates the flag 12 * [x] in the bit comments indicates the flag is defunct and no longer used.
13 */ 13 */
14 #define ASYNCB_HUP_NOTIFY 0 /* Notify g 14 #define ASYNCB_HUP_NOTIFY 0 /* Notify getty on hangups and closes
15 * on the c 15 * on the callout port */
16 #define ASYNCB_FOURPORT 1 /* Set OUT1 16 #define ASYNCB_FOURPORT 1 /* Set OUT1, OUT2 per AST Fourport settings */
17 #define ASYNCB_SAK 2 /* Secure A 17 #define ASYNCB_SAK 2 /* Secure Attention Key (Orange book) */
18 #define ASYNCB_SPLIT_TERMIOS 3 /* [x] Sepa 18 #define ASYNCB_SPLIT_TERMIOS 3 /* [x] Separate termios for dialin/callout */
19 #define ASYNCB_SPD_HI 4 /* Use 5760 19 #define ASYNCB_SPD_HI 4 /* Use 57600 instead of 38400 bps */
20 #define ASYNCB_SPD_VHI 5 /* Use 1152 20 #define ASYNCB_SPD_VHI 5 /* Use 115200 instead of 38400 bps */
21 #define ASYNCB_SKIP_TEST 6 /* Skip UAR 21 #define ASYNCB_SKIP_TEST 6 /* Skip UART test during autoconfiguration */
22 #define ASYNCB_AUTO_IRQ 7 /* Do autom 22 #define ASYNCB_AUTO_IRQ 7 /* Do automatic IRQ during
23 * autoconf 23 * autoconfiguration */
24 #define ASYNCB_SESSION_LOCKOUT 8 /* [x] Lock 24 #define ASYNCB_SESSION_LOCKOUT 8 /* [x] Lock out cua opens based on session */
25 #define ASYNCB_PGRP_LOCKOUT 9 /* [x] Lock 25 #define ASYNCB_PGRP_LOCKOUT 9 /* [x] Lock out cua opens based on pgrp */
26 #define ASYNCB_CALLOUT_NOHUP 10 /* [x] Don' 26 #define ASYNCB_CALLOUT_NOHUP 10 /* [x] Don't do hangups for cua device */
27 #define ASYNCB_HARDPPS_CD 11 /* Call har 27 #define ASYNCB_HARDPPS_CD 11 /* Call hardpps when CD goes high */
28 #define ASYNCB_SPD_SHI 12 /* Use 2304 28 #define ASYNCB_SPD_SHI 12 /* Use 230400 instead of 38400 bps */
29 #define ASYNCB_LOW_LATENCY 13 /* Request 29 #define ASYNCB_LOW_LATENCY 13 /* Request low latency behaviour */
30 #define ASYNCB_BUGGY_UART 14 /* This is 30 #define ASYNCB_BUGGY_UART 14 /* This is a buggy UART, skip some safety
31 * checks. 31 * checks. Note: can be dangerous! */
32 #define ASYNCB_AUTOPROBE 15 /* [x] Port 32 #define ASYNCB_AUTOPROBE 15 /* [x] Port was autoprobed by PCI/PNP code */
33 #define ASYNCB_MAGIC_MULTIPLIER 16 /* Use spec 33 #define ASYNCB_MAGIC_MULTIPLIER 16 /* Use special CLK or divisor */
34 #define ASYNCB_LAST_USER 16 34 #define ASYNCB_LAST_USER 16
35 35
36 /* 36 /*
37 * Internal flags used only by kernel (read-on 37 * Internal flags used only by kernel (read-only)
38 * 38 *
39 * WARNING: These flags are no longer used and 39 * WARNING: These flags are no longer used and have been superceded by the
40 * TTY_PORT_ flags in the iflags fiel 40 * TTY_PORT_ flags in the iflags field (and not userspace-visible)
41 */ 41 */
42 #ifndef __KERNEL__ 42 #ifndef __KERNEL__
43 #define ASYNCB_INITIALIZED 31 /* Serial p 43 #define ASYNCB_INITIALIZED 31 /* Serial port was initialized */
44 #define ASYNCB_SUSPENDED 30 /* Serial p 44 #define ASYNCB_SUSPENDED 30 /* Serial port is suspended */
45 #define ASYNCB_NORMAL_ACTIVE 29 /* Normal d 45 #define ASYNCB_NORMAL_ACTIVE 29 /* Normal device is active */
46 #define ASYNCB_BOOT_AUTOCONF 28 /* Autoconf 46 #define ASYNCB_BOOT_AUTOCONF 28 /* Autoconfigure port on bootup */
47 #define ASYNCB_CLOSING 27 /* Serial p 47 #define ASYNCB_CLOSING 27 /* Serial port is closing */
48 #define ASYNCB_CTS_FLOW 26 /* Do CTS f 48 #define ASYNCB_CTS_FLOW 26 /* Do CTS flow control */
49 #define ASYNCB_CHECK_CD 25 /* i.e., CL 49 #define ASYNCB_CHECK_CD 25 /* i.e., CLOCAL */
50 #define ASYNCB_SHARE_IRQ 24 /* for mult 50 #define ASYNCB_SHARE_IRQ 24 /* for multifunction cards, no longer used */
51 #define ASYNCB_CONS_FLOW 23 /* flow con 51 #define ASYNCB_CONS_FLOW 23 /* flow control for console */
52 #define ASYNCB_FIRST_KERNEL 22 52 #define ASYNCB_FIRST_KERNEL 22
53 #endif 53 #endif
54 54
55 /* Masks */ 55 /* Masks */
56 #define ASYNC_HUP_NOTIFY (1U << ASYNCB_ 56 #define ASYNC_HUP_NOTIFY (1U << ASYNCB_HUP_NOTIFY)
57 #define ASYNC_SUSPENDED (1U << ASYNCB_ 57 #define ASYNC_SUSPENDED (1U << ASYNCB_SUSPENDED)
58 #define ASYNC_FOURPORT (1U << ASYNCB_ 58 #define ASYNC_FOURPORT (1U << ASYNCB_FOURPORT)
59 #define ASYNC_SAK (1U << ASYNCB_ 59 #define ASYNC_SAK (1U << ASYNCB_SAK)
60 #define ASYNC_SPLIT_TERMIOS (1U << ASYNCB_ 60 #define ASYNC_SPLIT_TERMIOS (1U << ASYNCB_SPLIT_TERMIOS)
61 #define ASYNC_SPD_HI (1U << ASYNCB_ 61 #define ASYNC_SPD_HI (1U << ASYNCB_SPD_HI)
62 #define ASYNC_SPD_VHI (1U << ASYNCB_ 62 #define ASYNC_SPD_VHI (1U << ASYNCB_SPD_VHI)
63 #define ASYNC_SKIP_TEST (1U << ASYNCB_ 63 #define ASYNC_SKIP_TEST (1U << ASYNCB_SKIP_TEST)
64 #define ASYNC_AUTO_IRQ (1U << ASYNCB_ 64 #define ASYNC_AUTO_IRQ (1U << ASYNCB_AUTO_IRQ)
65 #define ASYNC_SESSION_LOCKOUT (1U << ASYNCB_ 65 #define ASYNC_SESSION_LOCKOUT (1U << ASYNCB_SESSION_LOCKOUT)
66 #define ASYNC_PGRP_LOCKOUT (1U << ASYNCB_ 66 #define ASYNC_PGRP_LOCKOUT (1U << ASYNCB_PGRP_LOCKOUT)
67 #define ASYNC_CALLOUT_NOHUP (1U << ASYNCB_ 67 #define ASYNC_CALLOUT_NOHUP (1U << ASYNCB_CALLOUT_NOHUP)
68 #define ASYNC_HARDPPS_CD (1U << ASYNCB_ 68 #define ASYNC_HARDPPS_CD (1U << ASYNCB_HARDPPS_CD)
69 #define ASYNC_SPD_SHI (1U << ASYNCB_ 69 #define ASYNC_SPD_SHI (1U << ASYNCB_SPD_SHI)
70 #define ASYNC_LOW_LATENCY (1U << ASYNCB_ 70 #define ASYNC_LOW_LATENCY (1U << ASYNCB_LOW_LATENCY)
71 #define ASYNC_BUGGY_UART (1U << ASYNCB_ 71 #define ASYNC_BUGGY_UART (1U << ASYNCB_BUGGY_UART)
72 #define ASYNC_AUTOPROBE (1U << ASYNCB_ 72 #define ASYNC_AUTOPROBE (1U << ASYNCB_AUTOPROBE)
73 #define ASYNC_MAGIC_MULTIPLIER (1U << ASYNCB_ 73 #define ASYNC_MAGIC_MULTIPLIER (1U << ASYNCB_MAGIC_MULTIPLIER)
74 74
75 #define ASYNC_FLAGS ((1U << (ASYNC 75 #define ASYNC_FLAGS ((1U << (ASYNCB_LAST_USER + 1)) - 1)
76 #define ASYNC_DEPRECATED (ASYNC_SPLIT_T 76 #define ASYNC_DEPRECATED (ASYNC_SPLIT_TERMIOS | ASYNC_SESSION_LOCKOUT | \
77 ASYNC_PGRP_LOCKOUT | ASYNC_CAL 77 ASYNC_PGRP_LOCKOUT | ASYNC_CALLOUT_NOHUP | ASYNC_AUTOPROBE)
78 #define ASYNC_USR_MASK (ASYNC_SPD_MAS 78 #define ASYNC_USR_MASK (ASYNC_SPD_MASK|ASYNC_CALLOUT_NOHUP| \
79 ASYNC_LOW_LATENCY) 79 ASYNC_LOW_LATENCY)
80 #define ASYNC_SPD_CUST (ASYNC_SPD_HI| 80 #define ASYNC_SPD_CUST (ASYNC_SPD_HI|ASYNC_SPD_VHI)
81 #define ASYNC_SPD_WARP (ASYNC_SPD_HI| 81 #define ASYNC_SPD_WARP (ASYNC_SPD_HI|ASYNC_SPD_SHI)
82 #define ASYNC_SPD_MASK (ASYNC_SPD_HI| 82 #define ASYNC_SPD_MASK (ASYNC_SPD_HI|ASYNC_SPD_VHI|ASYNC_SPD_SHI)
83 83
84 #ifndef __KERNEL__ 84 #ifndef __KERNEL__
85 /* These flags are no longer used (and were al 85 /* These flags are no longer used (and were always masked from userspace) */
86 #define ASYNC_INITIALIZED (1U << ASYNCB_ 86 #define ASYNC_INITIALIZED (1U << ASYNCB_INITIALIZED)
87 #define ASYNC_NORMAL_ACTIVE (1U << ASYNCB_ 87 #define ASYNC_NORMAL_ACTIVE (1U << ASYNCB_NORMAL_ACTIVE)
88 #define ASYNC_BOOT_AUTOCONF (1U << ASYNCB_ 88 #define ASYNC_BOOT_AUTOCONF (1U << ASYNCB_BOOT_AUTOCONF)
89 #define ASYNC_CLOSING (1U << ASYNCB_ 89 #define ASYNC_CLOSING (1U << ASYNCB_CLOSING)
90 #define ASYNC_CTS_FLOW (1U << ASYNCB_ 90 #define ASYNC_CTS_FLOW (1U << ASYNCB_CTS_FLOW)
91 #define ASYNC_CHECK_CD (1U << ASYNCB_ 91 #define ASYNC_CHECK_CD (1U << ASYNCB_CHECK_CD)
92 #define ASYNC_SHARE_IRQ (1U << ASYNCB_ 92 #define ASYNC_SHARE_IRQ (1U << ASYNCB_SHARE_IRQ)
93 #define ASYNC_CONS_FLOW (1U << ASYNCB_ 93 #define ASYNC_CONS_FLOW (1U << ASYNCB_CONS_FLOW)
94 #define ASYNC_INTERNAL_FLAGS (~((1U << ASYN 94 #define ASYNC_INTERNAL_FLAGS (~((1U << ASYNCB_FIRST_KERNEL) - 1))
95 #endif 95 #endif
96 96
97 #endif 97 #endif
98 98
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