Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * console_struct.h
3 *
4 * Data structure describing single virtual console except for data
5 * used by vt.c.
6 *
7 * Fields marked with [#] must be set by the low-level driver.
8 * Fields marked with [!] can be changed by the low-level driver
9 * to achieve effects such as fast scrolling by changing the origin.
10 */
11
12struct vt_struct;
13
14#define NPAR 16
15
16struct vc_data {
17 unsigned short vc_num; /* Console number */
18 unsigned int vc_cols; /* [#] Console size */
19 unsigned int vc_rows;
20 unsigned int vc_size_row; /* Bytes per row */
21 unsigned int vc_scan_lines; /* # of scan lines */
22 unsigned long vc_origin; /* [!] Start of real screen */
23 unsigned long vc_scr_end; /* [!] End of real screen */
24 unsigned long vc_visible_origin; /* [!] Top of visible window */
25 unsigned int vc_top, vc_bottom; /* Scrolling region */
26 const struct consw *vc_sw;
27 unsigned short *vc_screenbuf; /* In-memory character/attribute buffer */
28 unsigned int vc_screenbuf_size;
29 unsigned char vc_mode; /* KD_TEXT, ... */
30 /* attributes for all characters on screen */
31 unsigned char vc_attr; /* Current attributes */
32 unsigned char vc_def_color; /* Default colors */
33 unsigned char vc_color; /* Foreground & background */
34 unsigned char vc_s_color; /* Saved foreground & background */
35 unsigned char vc_ulcolor; /* Color for underline mode */
36 unsigned char vc_halfcolor; /* Color for half intensity mode */
37 /* cursor */
38 unsigned int vc_cursor_type;
39 unsigned short vc_complement_mask; /* [#] Xor mask for mouse pointer */
40 unsigned short vc_s_complement_mask; /* Saved mouse pointer mask */
41 unsigned int vc_x, vc_y; /* Cursor position */
42 unsigned int vc_saved_x, vc_saved_y;
43 unsigned long vc_pos; /* Cursor address */
44 /* fonts */
45 unsigned short vc_hi_font_mask; /* [#] Attribute set for upper 256 chars of font or 0 if not supported */
46 struct console_font vc_font; /* Current VC font set */
47 unsigned short vc_video_erase_char; /* Background erase character */
48 /* VT terminal data */
49 unsigned int vc_state; /* Escape sequence parser state */
50 unsigned int vc_npar,vc_par[NPAR]; /* Parameters of current escape sequence */
51 struct tty_struct *vc_tty; /* TTY we are attached to */
52 /* data for manual vt switching */
53 struct vt_mode vt_mode;
54 int vt_pid;
55 int vt_newvt;
56 wait_queue_head_t paste_wait;
57 /* mode flags */
58 unsigned int vc_charset : 1; /* Character set G0 / G1 */
59 unsigned int vc_s_charset : 1; /* Saved character set */
60 unsigned int vc_disp_ctrl : 1; /* Display chars < 32? */
61 unsigned int vc_toggle_meta : 1; /* Toggle high bit? */
62 unsigned int vc_decscnm : 1; /* Screen Mode */
63 unsigned int vc_decom : 1; /* Origin Mode */
64 unsigned int vc_decawm : 1; /* Autowrap Mode */
65 unsigned int vc_deccm : 1; /* Cursor Visible */
66 unsigned int vc_decim : 1; /* Insert Mode */
67 unsigned int vc_deccolm : 1; /* 80/132 Column Mode */
68 /* attribute flags */
69 unsigned int vc_intensity : 2; /* 0=half-bright, 1=normal, 2=bold */
70 unsigned int vc_underline : 1;
71 unsigned int vc_blink : 1;
72 unsigned int vc_reverse : 1;
73 unsigned int vc_s_intensity : 2; /* saved rendition */
74 unsigned int vc_s_underline : 1;
75 unsigned int vc_s_blink : 1;
76 unsigned int vc_s_reverse : 1;
77 /* misc */
78 unsigned int vc_ques : 1;
79 unsigned int vc_need_wrap : 1;
80 unsigned int vc_can_do_color : 1;
81 unsigned int vc_report_mouse : 2;
82 unsigned int vc_kmalloced : 1;
83 unsigned char vc_utf : 1; /* Unicode UTF-8 encoding */
84 unsigned char vc_utf_count;
85 int vc_utf_char;
86 unsigned int vc_tab_stop[8]; /* Tab stops. 256 columns. */
87 unsigned char vc_palette[16*3]; /* Colour palette for VGA+ */
88 unsigned short * vc_translate;
89 unsigned char vc_G0_charset;
90 unsigned char vc_G1_charset;
91 unsigned char vc_saved_G0;
92 unsigned char vc_saved_G1;
93 unsigned int vc_bell_pitch; /* Console bell pitch */
94 unsigned int vc_bell_duration; /* Console bell duration */
95 struct vc_data **vc_display_fg; /* [!] Ptr to var holding fg console for this display */
96 unsigned long vc_uni_pagedir;
97 unsigned long *vc_uni_pagedir_loc; /* [!] Location of uni_pagedir variable for this console */
98 /* additional information is in vt_kern.h */
99};
100
101struct vc {
102 struct vc_data *d;
103
104 /* might add scrmem, vt_struct, kbd at some time,
105 to have everything in one place - the disadvantage
106 would be that vc_cons etc can no longer be static */
107};
108
109extern struct vc vc_cons [MAX_NR_CONSOLES];
110
111#define CUR_DEF 0
112#define CUR_NONE 1
113#define CUR_UNDERLINE 2
114#define CUR_LOWER_THIRD 3
115#define CUR_LOWER_HALF 4
116#define CUR_TWO_THIRDS 5
117#define CUR_BLOCK 6
118#define CUR_HWMASK 0x0f
119#define CUR_SWMASK 0xfff0
120
121#define CUR_DEFAULT CUR_UNDERLINE
122
123#define CON_IS_VISIBLE(conp) (*conp->vc_display_fg == conp)