111 lines
2.9 KiB
C
111 lines
2.9 KiB
C
/*************************************************************************//**
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*****************************************************************************
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* @file tty.h
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* @brief
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* @author Forrest Y. Yu
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* @date 2005
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*****************************************************************************
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*****************************************************************************/
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/**********************************************************
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* tty.h //added by mingxuan 2019-5-17
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***********************************************************/
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#ifndef _ORANGES_TTY_H_
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#define _ORANGES_TTY_H_
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#define TTY_IN_BYTES 256 /* tty input queue size */
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#define TTY_OUT_BUF_LEN 2 /* tty output buffer size */
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/* TTY state (3bit)
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wait_enter wait_space display
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1/0 1/0 1/0
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*/
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#define TTY_STATE_WAIT_ENTER 4 /*100*/
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#define TTY_STATE_WAIT_SPACE 2 /*010*/
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#define TTY_STATE_DISPLAY 1 /*001*/
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struct s_tty;
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struct s_console;
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/* TTY */
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typedef struct s_tty
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{
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u32 ibuf[TTY_IN_BYTES]; /* TTY input buffer */
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u32* ibuf_head; /* the next free slot */
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u32* ibuf_tail; /* 缓冲区显示位置指针 */
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u32* ibuf_read;
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int ibuf_cnt; /* how many */
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int ibuf_read_cnt;
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int status;
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int mouse_left_button;
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int mouse_mid_button;
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int mouse_X;
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int mouse_Y;
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struct s_console * console;
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}TTY;
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typedef struct MouseState{
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u8 mouse_lb;
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u8 mouse_mb;
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u8 mouse_rb;
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signed char mouse_scroll;
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int mouse_x;
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int mouse_y;
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} MouseState;
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typedef struct n_tty {
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int driver_type; // 1-vga&kbd; 2-serial
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MouseState mouse;
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void* input_buf;
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void* output_buf;
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} NTTY;
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typedef struct vga_buf {
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void* buf; // 2d array, screen size, for text mode it's [maxline][80]
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int max_line; // to support scroll, max line should be a lot more than screen
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int scr_top_line; // the index in buf of top line on screen;
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int scr_cur_line; // the index in buf of the cursor's line
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int head_line; // for circular buffer use
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int cur_row;
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int cur_col; // cursor position, on screen
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} vga_buf;
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typedef struct keyboard_buf {
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void* buf; // 1d array, buffer input virtual line, works as a ldisc
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int tail;
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int head;
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int len;
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int readable;
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} keyboard_buf;
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#include "console.h"
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void select_console(int nr_console);
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void init_screen(TTY* tty);
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void out_char(CONSOLE* con, char ch);
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int is_current_console(CONSOLE* con);
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int init_serial();
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char read_serial();
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void write_serial(char a);
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void vga_tty_init(NTTY* tty);
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void vga_tty_write(NTTY* tty, char ch);
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void vga_tty_flush(NTTY* tty);
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void vga_tty_backspace(NTTY* tty);
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void ps2_tty_init(NTTY* tty);
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int ps2_tty_read(NTTY* tty, u8* buf, int nr);
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#define CYCLE_SUB(head, tail, _max) ((head) < (tail) ? (tail)-(head) : (tail) + (_max) - (head))
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#define NEXT(x, _max) (((x) + 1) % (_max))
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#define LAST(x, _max) (((x) - 1) >= 0 ? ((x) - 1) % (_max) : (_max) - 1)
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#define DEBUGNEW
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extern int cur_ntty;
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extern NTTY ntty_table[3];
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#endif /* _ORANGES_TTY_H_ */ |