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/vt.h> 10 #include <linux/kd.h> 11 #include <linux/tty.h> 12 #include <linux/mutex.h> 13 #include <linux/console_struct.h> 14 #include <linux/mm.h> 15 #include <linux/consolemap.h> 16 #include <linux/notifier.h> 17 18 /* 19 * Presently, a lot of graphics programs do not restore the contents of 20 * the higher font pages. Defining this flag will avoid use of them, but 21 * will lose support for PIO_FONTRESET. Note that many font operations are 22 * not likely to work with these programs anyway; they need to be 23 * fixed. The linux/Documentation directory includes a code snippet 24 * to save and restore the text font. 25 */ 26 #ifdef CONFIG_VGA_CONSOLE 27 #define BROKEN_GRAPHICS_PROGRAMS 1 28 #endif 29 30 extern void kd_mksound(unsigned int hz, unsigned int ticks); 31 extern int kbd_rate(struct kbd_repeat *rep); 32 extern int fg_console, last_console, want_console; 33 34 /* console.c */ 35 36 int vc_allocate(unsigned int console); 37 int vc_cons_allocated(unsigned int console); 38 int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines); 39 void vc_deallocate(unsigned int console); 40 void reset_palette(struct vc_data *vc); 41 void do_blank_screen(int entering_gfx); 42 void do_unblank_screen(int leaving_gfx); 43 void unblank_screen(void); 44 void poke_blanked_console(void); 45 int con_font_op(struct vc_data *vc, struct console_font_op *op); 46 int con_set_cmap(unsigned char __user *cmap); 47 int con_get_cmap(unsigned char __user *cmap); 48 void scrollback(struct vc_data *vc, int lines); 49 void scrollfront(struct vc_data *vc, int lines); 50 void update_region(struct vc_data *vc, unsigned long start, int count); 51 void redraw_screen(struct vc_data *vc, int is_switch); 52 #define update_screen(x) redraw_screen(x, 0) 53 #define switch_screen(x) redraw_screen(x, 1) 54 55 struct tty_struct; 56 int tioclinux(struct tty_struct *tty, unsigned long arg); 57 58 #ifdef CONFIG_CONSOLE_TRANSLATIONS 59 /* consolemap.c */ 60 61 struct unimapinit; 62 struct unipair; 63 64 int con_set_trans_old(unsigned char __user * table); 65 int con_get_trans_old(unsigned char __user * table); 66 int con_set_trans_new(unsigned short __user * table); 67 int con_get_trans_new(unsigned short __user * table); 68 int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui); 69 int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list); 70 int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, struct unipair __user *list); 71 int con_set_default_unimap(struct vc_data *vc); 72 void con_free_unimap(struct vc_data *vc); 73 int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc); 74 75 #define vc_translate(vc, c) ((vc)->vc_translate[(c) | \ 76 ((vc)->vc_toggle_meta ? 0x80 : 0)]) 77 #else 78 static inline int con_set_trans_old(unsigned char __user *table) 79 { 80 return 0; 81 } 82 static inline int con_get_trans_old(unsigned char __user *table) 83 { 84 return -EINVAL; 85 } 86 static inline int con_set_trans_new(unsigned short __user *table) 87 { 88 return 0; 89 } 90 static inline int con_get_trans_new(unsigned short __user *table) 91 { 92 return -EINVAL; 93 } 94 static inline int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui) 95 { 96 return 0; 97 } 98 static inline 99 int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list) 100 { 101 return 0; 102 } 103 static inline 104 int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, 105 struct unipair __user *list) 106 { 107 return -EINVAL; 108 } 109 static inline int con_set_default_unimap(struct vc_data *vc) 110 { 111 return 0; 112 } 113 static inline void con_free_unimap(struct vc_data *vc) 114 { 115 } 116 static inline void con_protect_unimap(struct vc_data *vc, int rdonly) 117 { 118 } 119 static inline 120 int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc) 121 { 122 return 0; 123 } 124 125 #define vc_translate(vc, c) (c) 126 #endif 127 128 /* vt.c */ 129 void vt_event_post(unsigned int event, unsigned int old, unsigned int new); 130 int vt_waitactive(int n); 131 void change_console(struct vc_data *new_vc); 132 void reset_vc(struct vc_data *vc); 133 extern int unbind_con_driver(const struct consw *csw, int first, int last, 134 int deflt); 135 int vty_init(const struct file_operations *console_fops); 136 137 static inline bool vt_force_oops_output(struct vc_data *vc) 138 { 139 if (oops_in_progress && vc->vc_panic_force_write && panic_timeout >= 0) 140 return true; 141 return false; 142 } 143 144 extern char vt_dont_switch; 145 extern int default_utf8; 146 extern int global_cursor_default; 147 148 struct vt_spawn_console { 149 spinlock_t lock; 150 struct pid *pid; 151 int sig; 152 }; 153 extern struct vt_spawn_console vt_spawn_con; 154 155 extern int vt_move_to_console(unsigned int vt, int alloc); 156 157 /* Interfaces for VC notification of character events (for accessibility etc) */ 158 159 struct vt_notifier_param { 160 struct vc_data *vc; /* VC on which the update happened */ 161 unsigned int c; /* Printed char */ 162 }; 163 164 extern int register_vt_notifier(struct notifier_block *nb); 165 extern int unregister_vt_notifier(struct notifier_block *nb); 166 167 extern void hide_boot_cursor(bool hide); 168 169 /* keyboard provided interfaces */ 170 extern int vt_do_diacrit(unsigned int cmd, void __user *up, int eperm); 171 extern int vt_do_kdskbmode(int console, unsigned int arg); 172 extern int vt_do_kdskbmeta(int console, unsigned int arg); 173 extern int vt_do_kbkeycode_ioctl(int cmd, struct kbkeycode __user *user_kbkc, 174 int perm); 175 extern int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, 176 int perm, int console); 177 extern int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, 178 int perm); 179 extern int vt_do_kdskled(int console, int cmd, unsigned long arg, int perm); 180 extern int vt_do_kdgkbmode(int console); 181 extern int vt_do_kdgkbmeta(int console); 182 extern void vt_reset_unicode(int console); 183 extern int vt_get_shift_state(void); 184 extern void vt_reset_keyboard(int console); 185 extern int vt_get_leds(int console, int flag); 186 extern int vt_get_kbd_mode_bit(int console, int bit); 187 extern void vt_set_kbd_mode_bit(int console, int bit); 188 extern void vt_clr_kbd_mode_bit(int console, int bit); 189 extern void vt_set_led_state(int console, int leds); 190 extern void vt_set_led_state(int console, int leds); 191 extern void vt_kbd_con_start(int console); 192 extern void vt_kbd_con_stop(int console); 193 194 195 #endif /* _VT_KERN_H */ 196