| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 | #include <linux/kd.h> |
| 12 | #include <linux/tty.h> |
| 13 | #include <linux/console_struct.h> |
| 14 | #include <linux/mm.h> |
| 15 | |
| 16 | /* |
| 17 | * Presently, a lot of graphics programs do not restore the contents of |
| 18 | * the higher font pages. Defining this flag will avoid use of them, but |
| 19 | * will lose support for PIO_FONTRESET. Note that many font operations are |
| 20 | * not likely to work with these programs anyway; they need to be |
| 21 | * fixed. The linux/Documentation directory includes a code snippet |
| 22 | * to save and restore the text font. |
| 23 | */ |
| 24 | #ifdef CONFIG_VGA_CONSOLE |
| 25 | #define BROKEN_GRAPHICS_PROGRAMS 1 |
| 26 | #endif |
| 27 | |
| 28 | extern void kd_mksound(unsigned int hz, unsigned int ticks); |
| 29 | extern int kbd_rate(struct kbd_repeat *rep); |
| 30 | |
| 31 | /* console.c */ |
| 32 | |
| 33 | int vc_allocate(unsigned int console); |
| 34 | int vc_cons_allocated(unsigned int console); |
| 35 | int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines); |
| 36 | void vc_disallocate(unsigned int console); |
| 37 | void reset_palette(struct vc_data *vc); |
| 38 | void do_blank_screen(int entering_gfx); |
| 39 | void do_unblank_screen(int leaving_gfx); |
| 40 | void unblank_screen(void); |
| 41 | void poke_blanked_console(void); |
| 42 | int con_font_op(struct vc_data *vc, struct console_font_op *op); |
| 43 | int con_set_cmap(unsigned char __user *cmap); |
| 44 | int con_get_cmap(unsigned char __user *cmap); |
| 45 | void scrollback(struct vc_data *vc, int lines); |
| 46 | void scrollfront(struct vc_data *vc, int lines); |
| 47 | void update_region(struct vc_data *vc, unsigned long start, int count); |
| 48 | void redraw_screen(struct vc_data *vc, int is_switch); |
| 49 | #define update_screen(x) redraw_screen(x, 0) |
| 50 | #define switch_screen(x) redraw_screen(x, 1) |
| 51 | |
| 52 | struct tty_struct; |
| 53 | int tioclinux(struct tty_struct *tty, unsigned long arg); |
| 54 | |
| 55 | /* consolemap.c */ |
| 56 | |
| 57 | struct unimapinit; |
| 58 | struct unipair; |
| 59 | |
| 60 | int con_set_trans_old(unsigned char __user * table); |
| 61 | int con_get_trans_old(unsigned char __user * table); |
| 62 | int con_set_trans_new(unsigned short __user * table); |
| 63 | int con_get_trans_new(unsigned short __user * table); |
| 64 | int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui); |
| 65 | int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list); |
| 66 | int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, struct unipair __user *list); |
| 67 | int con_set_default_unimap(struct vc_data *vc); |
| 68 | void con_free_unimap(struct vc_data *vc); |
| 69 | void con_protect_unimap(struct vc_data *vc, int rdonly); |
| 70 | int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc); |
| 71 | |
| 72 | /* vt.c */ |
| 73 | int vt_waitactive(int vt); |
| 74 | void change_console(struct vc_data *new_vc); |
| 75 | void reset_vc(struct vc_data *vc); |
| 76 | |
| 77 | /* |
| 78 | * vc_screen.c shares this temporary buffer with the console write code so that |
| 79 | * we can easily avoid touching user space while holding the console spinlock. |
| 80 | */ |
| 81 | |
| 82 | #define CON_BUF_SIZE (CONFIG_BASE_SMALL ? 256 : PAGE_SIZE) |
| 83 | extern char con_buf[CON_BUF_SIZE]; |
| 84 | extern struct semaphore con_buf_sem; |
| 85 | |
| 86 | #endif /* _VT_KERN_H */ |