/*
 * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include <Kernel/API/POSIX/sys/types.h>

#ifdef __cplusplus
extern "C" {
#endif

#define NCCS 32

typedef uint32_t tcflag_t;
typedef uint8_t cc_t;
typedef uint32_t speed_t;

struct termios {
    tcflag_t c_iflag;
    tcflag_t c_oflag;
    tcflag_t c_cflag;
    tcflag_t c_lflag;
    cc_t c_cc[NCCS];
    speed_t c_ispeed;
    speed_t c_ospeed;
};

/* c_cc characters */
#define VINTR 0
#define VQUIT 1
#define VERASE 2
#define VKILL 3
#define VEOF 4
#define VTIME 5
#define VMIN 6
#define VSWTC 7
#define VSTART 8
#define VSTOP 9
#define VSUSP 10
#define VEOL 11
#define VREPRINT 12
#define VDISCARD 13
#define VWERASE 14
#define VLNEXT 15
#define VEOL2 16
#define VINFO 17

/* c_iflag bits */
#define IGNBRK 0000001
#define BRKINT 0000002
#define IGNPAR 0000004
#define PARMRK 0000010
#define INPCK 0000020
#define ISTRIP 0000040
#define INLCR 0000100
#define IGNCR 0000200
#define ICRNL 0000400
#define IUCLC 0001000
#define IXON 0002000
#define IXANY 0004000
#define IXOFF 0010000
#define IMAXBEL 0020000
#define IUTF8 0040000

/* c_oflag bits */
#define OPOST 0000001
#define OLCUC 0000002
#define ONLCR 0000004
#define OCRNL 0000010
#define ONOCR 0000020
#define ONLRET 0000040
#define OFILL 0000100
#define OFDEL 0000200
#if defined __USE_MISC || defined __USE_XOPEN
#    define NLDLY 0000400
#    define NL0 0000000
#    define NL1 0000400
#    define CRDLY 0003000
#    define CR0 0000000
#    define CR1 0001000
#    define CR2 0002000
#    define CR3 0003000
#    define TABDLY 0014000
#    define TAB0 0000000
#    define TAB1 0004000
#    define TAB2 0010000
#    define TAB3 0014000
#    define BSDLY 0020000
#    define BS0 0000000
#    define BS1 0020000
#    define FFDLY 0100000
#    define FF0 0000000
#    define FF1 0100000
#endif

#define VTDLY 0040000
#define VT0 0000000
#define VT1 0040000

#ifdef __USE_MISC
#    define XTABS 0014000
#endif

/* c_cflag bit meaning */
#ifdef __USE_MISC
#    define CBAUD 0010017
#endif
#define B0 0000000 /* hang up */
#define B50 0000001
#define B75 0000002
#define B110 0000003
#define B134 0000004
#define B150 0000005
#define B200 0000006
#define B300 0000007
#define B600 0000010
#define B1200 0000011
#define B1800 0000012
#define B2400 0000013
#define B4800 0000014
#define B9600 0000015
#define B19200 0000016
#define B38400 0000017
#ifdef __USE_MISC
#    define EXTA B19200
#    define EXTB B38400
#endif
#define CSIZE 0000060
#define CS5 0000000
#define CS6 0000020
#define CS7 0000040
#define CS8 0000060
#define CSTOPB 0000100
#define CREAD 0000200
#define PARENB 0000400
#define PARODD 0001000
#define HUPCL 0002000
#define CLOCAL 0004000
#ifdef __USE_MISC
#    define CBAUDEX 0010000
#endif
#define B57600 0010001
#define B115200 0010002
#define B230400 0010003
#define B460800 0010004
#define B500000 0010005
#define B576000 0010006
#define B921600 0010007
#define B1000000 0010010
#define B1152000 0010011
#define B1500000 0010012
#define B2000000 0010013
#define B2500000 0010014
#define B3000000 0010015
#define B3500000 0010016
#define B4000000 0010017
#define __MAX_BAUD B4000000
#ifdef __USE_MISC
#    define CIBAUD 002003600000  /* input baud rate (not used) */
#    define CMSPAR 010000000000  /* mark or space (stick) parity */
#    define CRTSCTS 020000000000 /* flow control */
#endif

/* c_lflag bits */
#define ISIG 0000001
#define ICANON 0000002
#if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
#    define XCASE 0000004
#endif
#define ECHO 0000010
#define ECHOE 0000020
#define ECHOK 0000040
#define ECHONL 0000100
#define NOFLSH 0000200
#define TOSTOP 0000400
#ifdef __USE_MISC
#    define ECHOCTL 0001000
#    define ECHOPRT 0002000
#    define ECHOKE 0004000
#    define FLUSHO 0010000
#    define PENDIN 0040000
#endif
#define IEXTEN 0100000
#ifdef __USE_MISC
#    define EXTPROC 0200000
#endif

/* tcflow() and TCXONC use these */
#define TCOOFF 0
#define TCOON 1
#define TCIOFF 2
#define TCION 3

/* tcflush() and TCFLSH use these */
#define TCIFLUSH 0
#define TCOFLUSH 1
#define TCIOFLUSH 2

/* tcsetattr uses these */
#define TCSANOW 0
#define TCSADRAIN 1
#define TCSAFLUSH 2

#ifdef __cplusplus
}
#endif
