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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/vt.h>

#include <linux/kd.h>

#include <linux/tty.h>

#include <linux/mutex.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 void kd_mksound(unsigned int hz, unsigned int ticks);

extern int kbd_rate(struct kbd_repeat *rep);

extern int fg_console, last_console, want_console;

/* console.c */

int vc_allocate(unsigned int console);

int vc_cons_allocated(unsigned int console);

int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines);

int vc_lock_resize(struct vc_data *vc, unsigned int cols, unsigned int lines);

void vc_deallocate(unsigned int console);

void reset_palette(struct vc_data *vc);

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(struct vc_data *vc, struct console_font_op *op);

int con_set_cmap(unsigned char __user *cmap);

int con_get_cmap(unsigned char __user *cmap);

void scrollback(struct vc_data *vc, int lines);

void scrollfront(struct vc_data *vc, int lines);

void update_region(struct vc_data *vc, unsigned long start, int count);

void redraw_screen(struct vc_data *vc, 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(struct vc_data *vc, struct unimapinit *ui);

int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list);

int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, struct unipair __user *list);

int con_set_default_unimap(struct vc_data *vc);

void con_free_unimap(struct vc_data *vc);

void con_protect_unimap(struct vc_data *vc, int rdonly);

int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc);

/* vt.c */

int vt_waitactive(int vt);

void change_console(struct vc_data *new_vc);

void reset_vc(struct vc_data *vc);

extern int unbind_con_driver(const struct consw *csw, int first, int last,

                             int deflt);

/*

 * 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 (CONFIG_BASE_SMALL ? 256 : PAGE_SIZE)

extern char con_buf[CON_BUF_SIZE];

extern struct mutex con_buf_mtx;

extern char vt_dont_switch;

extern int default_utf8;

struct vt_spawn_console {

        spinlock_t lock;

        struct pid *pid;

        int sig;

};

extern struct vt_spawn_console vt_spawn_con;

#endif /* _VT_KERN_H */