88 lines
2.0 KiB
C
88 lines
2.0 KiB
C
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#ifndef _KERNEL_IO_TTY_TTY_H
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#define _KERNEL_IO_TTY_TTY_H
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#include <algo/sync_ringbuffer.h>
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#include <fs/vfs.h>
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#include <libkern/types.h>
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#define TTY_MAX_COUNT 8
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#define TTY_BUFFER_SIZE 1024
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typedef unsigned char cc_t;
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typedef unsigned int speed_t;
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typedef unsigned int tcflag_t;
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#define NCCS 32
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struct termios {
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tcflag_t c_iflag; // input mode flags
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tcflag_t c_oflag; // output mode flags
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tcflag_t c_cflag; // control mode flags
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tcflag_t c_lflag; // local mode flags
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cc_t c_cc[NCCS]; // control characters
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};
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typedef struct termios termios_t;
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/* c_cc characters */
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#define VINTR 0
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#define VQUIT 1
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#define VERASE 2
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#define VKILL 3
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#define VEOF 4
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#define VTIME 5
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#define VMIN 6
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#define VSWTC 7
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#define VSTART 8
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#define VSTOP 9
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#define VSUSP 10
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#define VEOL 11
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#define VREPRINT 12
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#define VDISCARD 13
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#define VWERASE 14
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#define VLNEXT 15
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#define VEOL2 16
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/* c_lflag bits */
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#define ISIG 0000001
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#define ICANON 0000002
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#define ECHO 0000010
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#define ECHOE 0000020
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#define ECHOK 0000040
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#define ECHONL 0000100
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#define NOFLSH 0000200
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#define TOSTOP 0000400
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#define IEXTEN 0100000
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/* tcflow() and TCXONC use these */
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#define TCOOFF 0
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#define TCOON 1
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#define TCIOFF 2
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#define TCION 3
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/* tcflush() and TCFLSH use these */
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#define TCIFLUSH 0
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#define TCOFLUSH 1
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#define TCIOFLUSH 2
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/* tcsetattr uses these */
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#define TCSANOW 0
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#define TCSADRAIN 1
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#define TCSAFLUSH 2
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struct tty_entry {
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sync_ringbuffer_t buffer;
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int line_count;
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gid_t pgid;
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termios_t termios;
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};
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typedef struct tty_entry tty_entry_t;
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int tty_init(tty_entry_t* tty);
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int tty_clear(tty_entry_t* tty);
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bool tty_can_read(tty_entry_t* tty, file_t* file, size_t start);
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int tty_read(tty_entry_t* tty, file_t* file, void __user* buf, size_t start, size_t len);
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bool tty_can_write(tty_entry_t* tty, file_t* file, size_t start);
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int tty_write(tty_entry_t* tty, file_t* file, void __user* buf, size_t start, size_t len);
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int tty_ioctl(tty_entry_t* tty, file_t* file, uintptr_t cmd, uintptr_t arg);
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#endif // _KERNEL_IO_TTY_TTY_H
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