Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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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
12#include <linux/vt.h>
13
14struct vt_struct;
15
16#define NPAR 16
17
18struct vc_data {
19 unsigned short vc_num; /* Console number */
20 unsigned int vc_cols; /* [#] Console size */
21 unsigned int vc_rows;
22 unsigned int vc_size_row; /* Bytes per row */
23 unsigned int vc_scan_lines; /* # of scan lines */
24 unsigned long vc_origin; /* [!] Start of real screen */
25 unsigned long vc_scr_end; /* [!] End of real screen */
26 unsigned long vc_visible_origin; /* [!] Top of visible window */
27 unsigned int vc_top, vc_bottom; /* Scrolling region */
28 const struct consw *vc_sw;
29 unsigned short *vc_screenbuf; /* In-memory character/attribute buffer */
30 unsigned int vc_screenbuf_size;
31 unsigned char vc_mode; /* KD_TEXT, ... */
32 /* attributes for all characters on screen */
33 unsigned char vc_attr; /* Current attributes */
34 unsigned char vc_def_color; /* Default colors */
35 unsigned char vc_color; /* Foreground & background */
36 unsigned char vc_s_color; /* Saved foreground & background */
37 unsigned char vc_ulcolor; /* Color for underline mode */
38 unsigned char vc_halfcolor; /* Color for half intensity mode */
39 /* cursor */
40 unsigned int vc_cursor_type;
41 unsigned short vc_complement_mask; /* [#] Xor mask for mouse pointer */
42 unsigned short vc_s_complement_mask; /* Saved mouse pointer mask */
43 unsigned int vc_x, vc_y; /* Cursor position */
44 unsigned int vc_saved_x, vc_saved_y;
45 unsigned long vc_pos; /* Cursor address */
46 /* fonts */
47 unsigned short vc_hi_font_mask; /* [#] Attribute set for upper 256 chars of font or 0 if not supported */
48 struct console_font vc_font; /* Current VC font set */
49 unsigned short vc_video_erase_char; /* Background erase character */
50 /* VT terminal data */
51 unsigned int vc_state; /* Escape sequence parser state */
52 unsigned int vc_npar,vc_par[NPAR]; /* Parameters of current escape sequence */
53 struct tty_struct *vc_tty; /* TTY we are attached to */
54 /* data for manual vt switching */
55 struct vt_mode vt_mode;
56 int vt_pid;
57 int vt_newvt;
58 wait_queue_head_t paste_wait;
59 /* mode flags */
60 unsigned int vc_charset : 1; /* Character set G0 / G1 */
61 unsigned int vc_s_charset : 1; /* Saved character set */
62 unsigned int vc_disp_ctrl : 1; /* Display chars < 32? */
63 unsigned int vc_toggle_meta : 1; /* Toggle high bit? */
64 unsigned int vc_decscnm : 1; /* Screen Mode */
65 unsigned int vc_decom : 1; /* Origin Mode */
66 unsigned int vc_decawm : 1; /* Autowrap Mode */
67 unsigned int vc_deccm : 1; /* Cursor Visible */
68 unsigned int vc_decim : 1; /* Insert Mode */
69 unsigned int vc_deccolm : 1; /* 80/132 Column Mode */
70 /* attribute flags */
71 unsigned int vc_intensity : 2; /* 0=half-bright, 1=normal, 2=bold */
72 unsigned int vc_underline : 1;
73 unsigned int vc_blink : 1;
74 unsigned int vc_reverse : 1;
75 unsigned int vc_s_intensity : 2; /* saved rendition */
76 unsigned int vc_s_underline : 1;
77 unsigned int vc_s_blink : 1;
78 unsigned int vc_s_reverse : 1;
79 /* misc */
80 unsigned int vc_ques : 1;
81 unsigned int vc_need_wrap : 1;
82 unsigned int vc_can_do_color : 1;
83 unsigned int vc_report_mouse : 2;
84 unsigned int vc_kmalloced : 1;
85 unsigned char vc_utf : 1; /* Unicode UTF-8 encoding */
86 unsigned char vc_utf_count;
87 int vc_utf_char;
88 unsigned int vc_tab_stop[8]; /* Tab stops. 256 columns. */
89 unsigned char vc_palette[16*3]; /* Colour palette for VGA+ */
90 unsigned short * vc_translate;
91 unsigned char vc_G0_charset;
92 unsigned char vc_G1_charset;
93 unsigned char vc_saved_G0;
94 unsigned char vc_saved_G1;
95 unsigned int vc_bell_pitch; /* Console bell pitch */
96 unsigned int vc_bell_duration; /* Console bell duration */
97 struct vc_data **vc_display_fg; /* [!] Ptr to var holding fg console for this display */
98 unsigned long vc_uni_pagedir;
99 unsigned long *vc_uni_pagedir_loc; /* [!] Location of uni_pagedir variable for this console */
100 /* additional information is in vt_kern.h */
101};
102
103struct vc {
104 struct vc_data *d;
105
106 /* might add scrmem, vt_struct, kbd at some time,
107 to have everything in one place - the disadvantage
108 would be that vc_cons etc can no longer be static */
109};
110
111extern struct vc vc_cons [MAX_NR_CONSOLES];
112
113#define CUR_DEF 0
114#define CUR_NONE 1
115#define CUR_UNDERLINE 2
116#define CUR_LOWER_THIRD 3
117#define CUR_LOWER_HALF 4
118#define CUR_TWO_THIRDS 5
119#define CUR_BLOCK 6
120#define CUR_HWMASK 0x0f
121#define CUR_SWMASK 0xfff0
122
123#define CUR_DEFAULT CUR_UNDERLINE
124
125#define CON_IS_VISIBLE(conp) (*conp->vc_display_fg == conp)