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gohigh
2024-02-19 00:24:53 -05:00
parent eec934fe6c
commit a4964ba92d
749 changed files with 100620 additions and 0 deletions
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103
kernel/0.95/linux-0.95/include/linux/tty.h Normal file
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/*
* 'tty.h' defines some structures used by tty_io.c and some defines.
*
* NOTE! Don't touch this without checking that nothing in rs_io.s or
* con_io.s breaks. Some constants are hardwired into the system (mainly
* offsets into 'tty_queue'
*/
#ifndef _TTY_H
#define _TTY_H
#define MAX_CONSOLES 8
#define NR_SERIALS 2
#define NR_PTYS 4
extern int NR_CONSOLES;
#include <termios.h>
#define TTY_BUF_SIZE 1024
struct tty_queue {
unsigned long data;
unsigned long head;
unsigned long tail;
struct task_struct * proc_list;
char buf[TTY_BUF_SIZE];
};
#define IS_A_CONSOLE(min) (((min) & 0xC0) == 0x00)
#define IS_A_SERIAL(min) (((min) & 0xC0) == 0x40)
#define IS_A_PTY(min) ((min) & 0x80)
#define IS_A_PTY_MASTER(min) (((min) & 0xC0) == 0x80)
#define IS_A_PTY_SLAVE(min) (((min) & 0xC0) == 0xC0)
#define PTY_OTHER(min) ((min) ^ 0x40)
#define INC(a) ((a) = ((a)+1) & (TTY_BUF_SIZE-1))
#define DEC(a) ((a) = ((a)-1) & (TTY_BUF_SIZE-1))
#define EMPTY(a) ((a)->head == (a)->tail)
#define LEFT(a) (((a)->tail-(a)->head-1)&(TTY_BUF_SIZE-1))
#define LAST(a) ((a)->buf[(TTY_BUF_SIZE-1)&((a)->head-1)])
#define FULL(a) (!LEFT(a))
#define CHARS(a) (((a)->head-(a)->tail)&(TTY_BUF_SIZE-1))
#define GETCH(queue,c) \
(void)({c=(queue)->buf[(queue)->tail];INC((queue)->tail);})
#define PUTCH(c,queue) \
(void)({(queue)->buf[(queue)->head]=(c);INC((queue)->head);})
#define INTR_CHAR(tty) ((tty)->termios.c_cc[VINTR])
#define QUIT_CHAR(tty) ((tty)->termios.c_cc[VQUIT])
#define ERASE_CHAR(tty) ((tty)->termios.c_cc[VERASE])
#define KILL_CHAR(tty) ((tty)->termios.c_cc[VKILL])
#define EOF_CHAR(tty) ((tty)->termios.c_cc[VEOF])
#define START_CHAR(tty) ((tty)->termios.c_cc[VSTART])
#define STOP_CHAR(tty) ((tty)->termios.c_cc[VSTOP])
#define SUSPEND_CHAR(tty) ((tty)->termios.c_cc[VSUSP])
struct tty_struct {
struct termios termios;
int pgrp;
int session;
int stopped;
struct winsize winsize;
void (*write)(struct tty_struct * tty);
struct tty_queue *read_q;
struct tty_queue *write_q;
struct tty_queue *secondary;
};
extern struct tty_struct tty_table[];
extern int fg_console;
extern unsigned long video_num_columns;
extern unsigned long video_num_lines;
#define TTY_TABLE(nr) \
(tty_table + ((nr) ? (((nr) < 64)? (nr)-1:(nr)) : fg_console))
/* intr=^C quit=^| erase=del kill=^U
eof=^D vtime=\0 vmin=\1 sxtc=\0
start=^Q stop=^S susp=^Z eol=\0
reprint=^R discard=^U werase=^W lnext=^V
eol2=\0
*/
#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
void rs_init(void);
void con_init(void);
void tty_init(void);
int tty_read(unsigned c, char * buf, int n, unsigned short flags);
int tty_write(unsigned c, char * buf, int n);
void con_write(struct tty_struct * tty);
void rs_write(struct tty_struct * tty);
void mpty_write(struct tty_struct * tty);
void spty_write(struct tty_struct * tty);
void copy_to_cooked(struct tty_struct * tty);
void update_screen(int new_console);
#endif