mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-27 12:57:53 +00:00
beccdcfa15
It is pretty unfortunate to set vc_data::vc_resize_user in two callers of vc_do_resize(). vc_resize_user is immediately reset there (while remembering it). So instead of this back and forth, pass 'from_user' as a parameter. Notes on 'int user': * The name changes from 'user' to 'from_user' on some places to be consistent. * The type is bool now as 'int user' might evoke user's uid or whatever. Provided vc_resize() is called on many places and they need not to care about this parameter, its prototype is kept unchanged. Instead, it is now an inline calling a new __vc_resize() which implements the above. This patch makes the situation much more obvious. Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org> Cc: Helge Deller <deller@gmx.de> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Tested-by: Helge Deller <deller@gmx.de> # parisc STI console Link: https://lore.kernel.org/r/20240122110401.7289-8-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
178 lines
5.3 KiB
C
178 lines
5.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#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/mutex.h>
|
|
#include <linux/console_struct.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/consolemap.h>
|
|
#include <linux/notifier.h>
|
|
|
|
void kd_mksound(unsigned int hz, unsigned int ticks);
|
|
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,
|
|
bool from_user);
|
|
struct vc_data *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 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);
|
|
void scrollfront(struct vc_data *vc, int lines);
|
|
void clear_buffer_attributes(struct vc_data *vc);
|
|
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)
|
|
|
|
static inline int vc_resize(struct vc_data *vc, unsigned int cols,
|
|
unsigned int lines)
|
|
{
|
|
return __vc_resize(vc, cols, lines, false);
|
|
}
|
|
|
|
struct tty_struct;
|
|
int tioclinux(struct tty_struct *tty, unsigned long arg);
|
|
|
|
#ifdef CONFIG_CONSOLE_TRANSLATIONS
|
|
/* consolemap.c */
|
|
|
|
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);
|
|
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);
|
|
int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc);
|
|
|
|
#else
|
|
static inline int con_set_trans_old(unsigned char __user *table)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline int con_get_trans_old(unsigned char __user *table)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
static inline int con_set_trans_new(unsigned short __user *table)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline int con_get_trans_new(unsigned short __user *table)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
static inline int con_clear_unimap(struct vc_data *vc)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline
|
|
int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline
|
|
int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct,
|
|
struct unipair __user *list)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
static inline int con_set_default_unimap(struct vc_data *vc)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void con_free_unimap(struct vc_data *vc)
|
|
{
|
|
}
|
|
static inline void con_protect_unimap(struct vc_data *vc, int rdonly)
|
|
{
|
|
}
|
|
static inline
|
|
int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
/* vt.c */
|
|
void vt_event_post(unsigned int event, unsigned int old, unsigned int new);
|
|
int vt_waitactive(int n);
|
|
void change_console(struct vc_data *new_vc);
|
|
void reset_vc(struct vc_data *vc);
|
|
int do_unbind_con_driver(const struct consw *csw, int first, int last,
|
|
int deflt);
|
|
int vty_init(const struct file_operations *console_fops);
|
|
|
|
extern bool vt_dont_switch;
|
|
extern int default_utf8;
|
|
extern int global_cursor_default;
|
|
|
|
struct vt_spawn_console {
|
|
spinlock_t lock;
|
|
struct pid *pid;
|
|
int sig;
|
|
};
|
|
extern struct vt_spawn_console vt_spawn_con;
|
|
|
|
int vt_move_to_console(unsigned int vt, int alloc);
|
|
|
|
/* Interfaces for VC notification of character events (for accessibility etc) */
|
|
|
|
struct vt_notifier_param {
|
|
struct vc_data *vc; /* VC on which the update happened */
|
|
unsigned int c; /* Printed char */
|
|
};
|
|
|
|
int register_vt_notifier(struct notifier_block *nb);
|
|
int unregister_vt_notifier(struct notifier_block *nb);
|
|
|
|
void hide_boot_cursor(bool hide);
|
|
|
|
/* keyboard provided interfaces */
|
|
int vt_do_diacrit(unsigned int cmd, void __user *up, int eperm);
|
|
int vt_do_kdskbmode(unsigned int console, unsigned int arg);
|
|
int vt_do_kdskbmeta(unsigned int console, unsigned int arg);
|
|
int vt_do_kbkeycode_ioctl(int cmd, struct kbkeycode __user *user_kbkc,
|
|
int perm);
|
|
int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
|
|
unsigned int console);
|
|
int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm);
|
|
int vt_do_kdskled(unsigned int console, int cmd, unsigned long arg, int perm);
|
|
int vt_do_kdgkbmode(unsigned int console);
|
|
int vt_do_kdgkbmeta(unsigned int console);
|
|
void vt_reset_unicode(unsigned int console);
|
|
int vt_get_shift_state(void);
|
|
void vt_reset_keyboard(unsigned int console);
|
|
int vt_get_leds(unsigned int console, int flag);
|
|
int vt_get_kbd_mode_bit(unsigned int console, int bit);
|
|
void vt_set_kbd_mode_bit(unsigned int console, int bit);
|
|
void vt_clr_kbd_mode_bit(unsigned int console, int bit);
|
|
void vt_set_led_state(unsigned int console, int leds);
|
|
void vt_kbd_con_start(unsigned int console);
|
|
void vt_kbd_con_stop(unsigned int console);
|
|
|
|
#endif /* _VT_KERN_H */
|