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- #ifndef _VT_KERN_H
- #define _VT_KERN_H
-
- /*
- * this really is an extension of the vc_cons structure in console.c, but
- * with information needed by the vt package
- */
-
- #include <linux/config.h>
- #include <linux/vt.h>
- #include <linux/kd.h>
- #include <linux/tty.h>
- #include <linux/console_struct.h>
- #include <linux/mm.h>
-
- /*
- * Presently, a lot of graphics programs do not restore the contents of
- * the higher font pages. Defining this flag will avoid use of them, but
- * will lose support for PIO_FONTRESET. Note that many font operations are
- * not likely to work with these programs anyway; they need to be
- * fixed. The linux/Documentation directory includes a code snippet
- * to save and restore the text font.
- */
- #ifdef CONFIG_VGA_CONSOLE
- #define BROKEN_GRAPHICS_PROGRAMS 1
- #endif
-
- extern struct vt_struct {
- int vc_num; /* The console number */
- unsigned char vc_mode; /* KD_TEXT, ... */
- struct vt_mode vt_mode;
- int vt_pid;
- int vt_newvt;
- wait_queue_head_t paste_wait;
- } *vt_cons[MAX_NR_CONSOLES];
-
- extern void kd_mksound(unsigned int hz, unsigned int ticks);
- extern int kbd_rate(struct kbd_repeat *rep);
-
- /* console.c */
-
- int vc_allocate(unsigned int console);
- int vc_cons_allocated(unsigned int console);
- int vc_resize(int currcons, unsigned int cols, unsigned int lines);
- void vc_disallocate(unsigned int console);
- void reset_palette(int currcons);
- void set_palette(int currcons);
- void do_blank_screen(int entering_gfx);
- void do_unblank_screen(int leaving_gfx);
- void unblank_screen(void);
- void poke_blanked_console(void);
- int con_font_op(int currcons, struct console_font_op *op);
- int con_font_set(int currcons, struct console_font_op *op);
- int con_font_get(int currcons, struct console_font_op *op);
- int con_font_default(int currcons, struct console_font_op *op);
- int con_font_copy(int currcons, struct console_font_op *op);
- int con_set_cmap(unsigned char __user *cmap);
- int con_get_cmap(unsigned char __user *cmap);
- void scrollback(int);
- void scrollfront(int);
- void update_region(int currcons, unsigned long start, int count);
- void redraw_screen(int new_console, int is_switch);
- #define update_screen(x) redraw_screen(x, 0)
- #define switch_screen(x) redraw_screen(x, 1)
-
- struct tty_struct;
- int tioclinux(struct tty_struct *tty, unsigned long arg);
-
- /* consolemap.c */
-
- struct unimapinit;
- struct unipair;
-
- int con_set_trans_old(unsigned char __user * table);
- int con_get_trans_old(unsigned char __user * table);
- int con_set_trans_new(unsigned short __user * table);
- int con_get_trans_new(unsigned short __user * table);
- int con_clear_unimap(int currcons, struct unimapinit *ui);
- int con_set_unimap(int currcons, ushort ct, struct unipair __user *list);
- int con_get_unimap(int currcons, ushort ct, ushort __user *uct, struct unipair __user *list);
- int con_set_default_unimap(int currcons);
- void con_free_unimap(int currcons);
- void con_protect_unimap(int currcons, int rdonly);
- int con_copy_unimap(int dstcons, int srccons);
-
- /* vt.c */
- void complete_change_console(unsigned int new_console);
- int vt_waitactive(int vt);
- void change_console(unsigned int);
- void reset_vc(unsigned int new_console);
-
- /*
- * vc_screen.c shares this temporary buffer with the console write code so that
- * we can easily avoid touching user space while holding the console spinlock.
- */
- #define CON_BUF_SIZE PAGE_SIZE
- extern char con_buf[CON_BUF_SIZE];
- extern struct semaphore con_buf_sem;
-
- #endif /* _VT_KERN_H */
-