cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

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 */