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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/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);
- /*
- * 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 semaphore con_buf_sem;
- extern char vt_dont_switch;
- struct vt_spawn_console {
- spinlock_t lock;
- struct pid *pid;
- int sig;
- };
- extern struct vt_spawn_console vt_spawn_con;
- #endif /* _VT_KERN_H */
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