1 #ifndef _VT_KERN_H
2 #define _VT_KERN_H
3
4 /*
5 * this really is an extension of the vc_cons structure in console.c, but
6 * with information needed by the vt package
7 */
8
9 #include <linux/config.h>
10 #include <linux/vt.h>
11
12 /*
13 * Presently, a lot of graphics programs do not restore the contents of
14 * the higher font pages. Defining this flag will avoid use of them, but
15 * will lose support for PIO_FONTRESET. Note that many font operations are
16 * not likely to work with these programs anyway; they need to be
17 * fixed. The linux/Documentation directory includes a code snippet
18 * to save and restore the text font.
19 */
20 #ifdef CONFIG_VGA_CONSOLE
21 #define BROKEN_GRAPHICS_PROGRAMS 1
22 #endif
23
24 extern struct vt_struct {
25 int vc_num; /* The console number */
26 unsigned char vc_mode; /* KD_TEXT, ... */
27 struct vt_mode vt_mode;
28 int vt_pid;
29 int vt_newvt;
30 wait_queue_head_t paste_wait;
31 } *vt_cons[MAX_NR_CONSOLES];
32
33 void (*kd_mksound)(unsigned int hz, unsigned int ticks);
34
35 /* console.c */
36
37 struct console_font_op;
38
39 int vc_allocate(unsigned int console);
40 int vc_cons_allocated(unsigned int console);
41 int vc_resize(unsigned int lines, unsigned int cols,
42 unsigned int first, unsigned int last);
43 #define vc_resize_all(l, c) vc_resize(l, c, 0, MAX_NR_CONSOLES-1)
44 #define vc_resize_con(l, c, x) vc_resize(l, c, x, x)
45 void vc_disallocate(unsigned int console);
46 void reset_palette(int currcons);
47 void set_palette(int currcons);
48 void do_blank_screen(int gfx_mode);
49 void unblank_screen(void);
50 void poke_blanked_console(void);
51 int con_font_op(int currcons, struct console_font_op *op);
52 int con_set_cmap(unsigned char *cmap);
53 int con_get_cmap(unsigned char *cmap);
54 void scrollback(int);
55 void scrollfront(int);
56 void update_region(int currcons, unsigned long start, int count);
57 void redraw_screen(int new_console, int is_switch);
58 #define update_screen(x) redraw_screen(x, 0)
59 #define switch_screen(x) redraw_screen(x, 1)
60
61 struct tty_struct;
62 int tioclinux(struct tty_struct *tty, unsigned long arg);
63
64 /* consolemap.c */
65
66 struct unimapinit;
67 struct unipair;
68
69 int con_set_trans_old(unsigned char * table);
70 int con_get_trans_old(unsigned char * table);
71 int con_set_trans_new(unsigned short * table);
72 int con_get_trans_new(unsigned short * table);
73 int con_clear_unimap(int currcons, struct unimapinit *ui);
74 int con_set_unimap(int currcons, ushort ct, struct unipair *list);
75 int con_get_unimap(int currcons, ushort ct, ushort *uct, struct unipair *list);
76 int con_set_default_unimap(int currcons);
77 void con_free_unimap(int currcons);
78 void con_protect_unimap(int currcons, int rdonly);
79 int con_copy_unimap(int dstcons, int srccons);
80
81 /* vt.c */
82
83 extern unsigned int video_font_height;
84 extern unsigned int default_font_height;
85 extern unsigned int video_scan_lines;
86
87 void complete_change_console(unsigned int new_console);
88 int vt_waitactive(int vt);
89 void change_console(unsigned int);
90 void reset_vc(unsigned int new_console);
91 int vt_waitactive(int vt);
92
93 #endif /* _VT_KERN_H */
94
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