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