cregit-Linux how code gets into the kernel

Release 4.12 include/linux/vt_kern.h

Directory: include/linux
#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>

/*
 * Presently, a lot of graphics programs do not restore the contents of
 * the higher font pages.  Defining this flag will avoid use of them, but
 * will lose support for PIO_FONTRESET.  Note that many font operations are
 * not likely to work with these programs anyway; they need to be
 * fixed.  The linux/Documentation directory includes a code snippet
 * to save and restore the text font.
 */
#ifdef CONFIG_VGA_CONSOLE

#define BROKEN_GRAPHICS_PROGRAMS 1
#endif

extern void kd_mksound(unsigned int hz, unsigned int ticks);
extern 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);
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 unblank_screen(void);
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)

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);


#define vc_translate(vc, c) ((vc)->vc_translate[(c) |                       \
                                        ((vc)->vc_toggle_meta ? 0x80 : 0)])
#else

static inline int con_set_trans_old(unsigned char __user *table) { return 0; }

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static inline int con_get_trans_old(unsigned char __user *table) { return -EINVAL; }

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static inline int con_set_trans_new(unsigned short __user *table) { return 0; }

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David Woodhouse318.75%150.00%
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static inline int con_get_trans_new(unsigned short __user *table) { return -EINVAL; }

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static inline int con_clear_unimap(struct vc_data *vc) { return 0; }

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David Woodhouse426.67%150.00%
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static inline int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list) { return 0; }

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David Woodhouse833.33%150.00%
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static inline int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, struct unipair __user *list) { return -EINVAL; }

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static inline int con_set_default_unimap(struct vc_data *vc) { return 0; }

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static inline void con_free_unimap(struct vc_data *vc) { }

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static inline void con_protect_unimap(struct vc_data *vc, int rdonly) { }

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Alexander Beregalov642.86%150.00%
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static inline int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc) { return 0; }

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#define vc_translate(vc, c) (c) #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); extern int do_unbind_con_driver(const struct consw *csw, int first, int last, int deflt); int vty_init(const struct file_operations *console_fops);
static inline bool vt_force_oops_output(struct vc_data *vc) { if (oops_in_progress && vc->vc_panic_force_write && panic_timeout >= 0) return true; return false; }

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Jesse Barnes2686.67%150.00%
Mandeep Singh Baines413.33%150.00%
Total30100.00%2100.00%

extern char 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; extern 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 */ }; extern int register_vt_notifier(struct notifier_block *nb); extern int unregister_vt_notifier(struct notifier_block *nb); extern void hide_boot_cursor(bool hide); /* keyboard provided interfaces */ extern int vt_do_diacrit(unsigned int cmd, void __user *up, int eperm); extern int vt_do_kdskbmode(int console, unsigned int arg); extern int vt_do_kdskbmeta(int console, unsigned int arg); extern int vt_do_kbkeycode_ioctl(int cmd, struct kbkeycode __user *user_kbkc, int perm); extern int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm, int console); extern int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm); extern int vt_do_kdskled(int console, int cmd, unsigned long arg, int perm); extern int vt_do_kdgkbmode(int console); extern int vt_do_kdgkbmeta(int console); extern void vt_reset_unicode(int console); extern int vt_get_shift_state(void); extern void vt_reset_keyboard(int console); extern int vt_get_leds(int console, int flag); extern int vt_get_kbd_mode_bit(int console, int bit); extern void vt_set_kbd_mode_bit(int console, int bit); extern void vt_clr_kbd_mode_bit(int console, int bit); extern void vt_set_led_state(int console, int leds); extern void vt_set_led_state(int console, int leds); extern void vt_kbd_con_start(int console); extern void vt_kbd_con_stop(int console); void vc_scrolldelta_helper(struct vc_data *c, int lines, unsigned int rolled_over, void *_base, unsigned int size); #endif /* _VT_KERN_H */

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Alan Cox31729.54%817.39%
Linus Torvalds (pre-git)28726.75%1226.09%
Kevin Winchester15114.07%12.17%
Roman Zippel666.15%12.17%
David Woodhouse656.06%12.17%
Jesse Barnes262.42%12.17%
Jiri Slaby242.24%12.17%
Eric W. Biedermann211.96%12.17%
Takashi Iwai181.68%12.17%
Linus Torvalds161.49%36.52%
Matthew Garrett121.12%12.17%
Dave Airlie90.84%12.17%
Al Viro90.84%12.17%
Andrew Morton80.75%12.17%
Jon Smirl80.75%12.17%
Alexander Beregalov60.56%12.17%
Adrian Bunk50.47%12.17%
James Simmons40.37%24.35%
Andrew Johnson40.37%12.17%
Bill Nottingham40.37%12.17%
Mandeep Singh Baines40.37%12.17%
Peter Hurley30.28%12.17%
Matthias Kaehlcke30.28%12.17%
Antonino A. Daplas20.19%12.17%
Tim Bird10.09%12.17%
Total1073100.00%46100.00%
Directory: include/linux
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