vt_kern.h (5433B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _VT_KERN_H 3#define _VT_KERN_H 4 5/* 6 * this really is an extension of the vc_cons structure in console.c, but 7 * with information needed by the vt package 8 */ 9 10#include <linux/vt.h> 11#include <linux/kd.h> 12#include <linux/tty.h> 13#include <linux/mutex.h> 14#include <linux/console_struct.h> 15#include <linux/mm.h> 16#include <linux/consolemap.h> 17#include <linux/notifier.h> 18 19void kd_mksound(unsigned int hz, unsigned int ticks); 20int kbd_rate(struct kbd_repeat *rep); 21 22extern int fg_console, last_console, want_console; 23 24/* console.c */ 25 26int vc_allocate(unsigned int console); 27int vc_cons_allocated(unsigned int console); 28int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines); 29struct vc_data *vc_deallocate(unsigned int console); 30void reset_palette(struct vc_data *vc); 31void do_blank_screen(int entering_gfx); 32void do_unblank_screen(int leaving_gfx); 33void unblank_screen(void); 34void poke_blanked_console(void); 35int con_font_op(struct vc_data *vc, struct console_font_op *op); 36int con_set_cmap(unsigned char __user *cmap); 37int con_get_cmap(unsigned char __user *cmap); 38void scrollback(struct vc_data *vc); 39void scrollfront(struct vc_data *vc, int lines); 40void clear_buffer_attributes(struct vc_data *vc); 41void update_region(struct vc_data *vc, unsigned long start, int count); 42void redraw_screen(struct vc_data *vc, int is_switch); 43#define update_screen(x) redraw_screen(x, 0) 44#define switch_screen(x) redraw_screen(x, 1) 45 46struct tty_struct; 47int tioclinux(struct tty_struct *tty, unsigned long arg); 48 49#ifdef CONFIG_CONSOLE_TRANSLATIONS 50/* consolemap.c */ 51 52struct unipair; 53 54int con_set_trans_old(unsigned char __user * table); 55int con_get_trans_old(unsigned char __user * table); 56int con_set_trans_new(unsigned short __user * table); 57int con_get_trans_new(unsigned short __user * table); 58int con_clear_unimap(struct vc_data *vc); 59int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list); 60int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, struct unipair __user *list); 61int con_set_default_unimap(struct vc_data *vc); 62void con_free_unimap(struct vc_data *vc); 63int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc); 64 65#else 66static inline int con_set_trans_old(unsigned char __user *table) 67{ 68 return 0; 69} 70static inline int con_get_trans_old(unsigned char __user *table) 71{ 72 return -EINVAL; 73} 74static inline int con_set_trans_new(unsigned short __user *table) 75{ 76 return 0; 77} 78static inline int con_get_trans_new(unsigned short __user *table) 79{ 80 return -EINVAL; 81} 82static inline int con_clear_unimap(struct vc_data *vc) 83{ 84 return 0; 85} 86static inline 87int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list) 88{ 89 return 0; 90} 91static inline 92int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, 93 struct unipair __user *list) 94{ 95 return -EINVAL; 96} 97static inline int con_set_default_unimap(struct vc_data *vc) 98{ 99 return 0; 100} 101static inline void con_free_unimap(struct vc_data *vc) 102{ 103} 104static inline void con_protect_unimap(struct vc_data *vc, int rdonly) 105{ 106} 107static inline 108int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc) 109{ 110 return 0; 111} 112 113#endif 114 115/* vt.c */ 116void vt_event_post(unsigned int event, unsigned int old, unsigned int new); 117int vt_waitactive(int n); 118void change_console(struct vc_data *new_vc); 119void reset_vc(struct vc_data *vc); 120int do_unbind_con_driver(const struct consw *csw, int first, int last, 121 int deflt); 122int vty_init(const struct file_operations *console_fops); 123 124extern bool vt_dont_switch; 125extern int default_utf8; 126extern int global_cursor_default; 127 128struct vt_spawn_console { 129 spinlock_t lock; 130 struct pid *pid; 131 int sig; 132}; 133extern struct vt_spawn_console vt_spawn_con; 134 135int vt_move_to_console(unsigned int vt, int alloc); 136 137/* Interfaces for VC notification of character events (for accessibility etc) */ 138 139struct vt_notifier_param { 140 struct vc_data *vc; /* VC on which the update happened */ 141 unsigned int c; /* Printed char */ 142}; 143 144int register_vt_notifier(struct notifier_block *nb); 145int unregister_vt_notifier(struct notifier_block *nb); 146 147void hide_boot_cursor(bool hide); 148 149/* keyboard provided interfaces */ 150int vt_do_diacrit(unsigned int cmd, void __user *up, int eperm); 151int vt_do_kdskbmode(unsigned int console, unsigned int arg); 152int vt_do_kdskbmeta(unsigned int console, unsigned int arg); 153int vt_do_kbkeycode_ioctl(int cmd, struct kbkeycode __user *user_kbkc, 154 int perm); 155int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm, 156 unsigned int console); 157int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm); 158int vt_do_kdskled(unsigned int console, int cmd, unsigned long arg, int perm); 159int vt_do_kdgkbmode(unsigned int console); 160int vt_do_kdgkbmeta(unsigned int console); 161void vt_reset_unicode(unsigned int console); 162int vt_get_shift_state(void); 163void vt_reset_keyboard(unsigned int console); 164int vt_get_leds(unsigned int console, int flag); 165int vt_get_kbd_mode_bit(unsigned int console, int bit); 166void vt_set_kbd_mode_bit(unsigned int console, int bit); 167void vt_clr_kbd_mode_bit(unsigned int console, int bit); 168void vt_set_led_state(unsigned int console, int leds); 169void vt_kbd_con_start(unsigned int console); 170void vt_kbd_con_stop(unsigned int console); 171 172void vc_scrolldelta_helper(struct vc_data *c, int lines, 173 unsigned int rolled_over, void *_base, unsigned int size); 174 175#endif /* _VT_KERN_H */