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 | bool from_user); |
30 | struct vc_data *vc_deallocate(unsigned int console); |
31 | void reset_palette(struct vc_data *vc); |
32 | void do_blank_screen(int entering_gfx); |
33 | void do_unblank_screen(int leaving_gfx); |
34 | void poke_blanked_console(void); |
35 | int con_font_op(struct vc_data *vc, struct console_font_op *op); |
36 | int con_set_cmap(unsigned char __user *cmap); |
37 | int con_get_cmap(unsigned char __user *cmap); |
38 | void scrollback(struct vc_data *vc); |
39 | void scrollfront(struct vc_data *vc, int lines); |
40 | void clear_buffer_attributes(struct vc_data *vc); |
41 | void update_region(struct vc_data *vc, unsigned long start, int count); |
42 | void 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 | |
46 | static inline int vc_resize(struct vc_data *vc, unsigned int cols, |
47 | unsigned int lines) |
48 | { |
49 | return __vc_resize(vc, cols, lines, from_user: false); |
50 | } |
51 | |
52 | struct tty_struct; |
53 | int tioclinux(struct tty_struct *tty, unsigned long arg); |
54 | |
55 | #ifdef CONFIG_CONSOLE_TRANSLATIONS |
56 | /* consolemap.c */ |
57 | |
58 | struct unipair; |
59 | |
60 | int con_set_trans_old(unsigned char __user * table); |
61 | int con_get_trans_old(unsigned char __user * table); |
62 | int con_set_trans_new(unsigned short __user * table); |
63 | int con_get_trans_new(unsigned short __user * table); |
64 | int con_clear_unimap(struct vc_data *vc); |
65 | int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list); |
66 | int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, struct unipair __user *list); |
67 | int con_set_default_unimap(struct vc_data *vc); |
68 | void con_free_unimap(struct vc_data *vc); |
69 | int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc); |
70 | |
71 | #else |
72 | static inline int con_set_trans_old(unsigned char __user *table) |
73 | { |
74 | return 0; |
75 | } |
76 | static inline int con_get_trans_old(unsigned char __user *table) |
77 | { |
78 | return -EINVAL; |
79 | } |
80 | static inline int con_set_trans_new(unsigned short __user *table) |
81 | { |
82 | return 0; |
83 | } |
84 | static inline int con_get_trans_new(unsigned short __user *table) |
85 | { |
86 | return -EINVAL; |
87 | } |
88 | static inline int con_clear_unimap(struct vc_data *vc) |
89 | { |
90 | return 0; |
91 | } |
92 | static inline |
93 | int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list) |
94 | { |
95 | return 0; |
96 | } |
97 | static inline |
98 | int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, |
99 | struct unipair __user *list) |
100 | { |
101 | return -EINVAL; |
102 | } |
103 | static inline int con_set_default_unimap(struct vc_data *vc) |
104 | { |
105 | return 0; |
106 | } |
107 | static inline void con_free_unimap(struct vc_data *vc) |
108 | { |
109 | } |
110 | static inline void con_protect_unimap(struct vc_data *vc, int rdonly) |
111 | { |
112 | } |
113 | static inline |
114 | int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc) |
115 | { |
116 | return 0; |
117 | } |
118 | |
119 | #endif |
120 | |
121 | /* vt.c */ |
122 | void vt_event_post(unsigned int event, unsigned int old, unsigned int new); |
123 | int vt_waitactive(int n); |
124 | void change_console(struct vc_data *new_vc); |
125 | void reset_vc(struct vc_data *vc); |
126 | int do_unbind_con_driver(const struct consw *csw, int first, int last, |
127 | int deflt); |
128 | int vty_init(const struct file_operations *console_fops); |
129 | |
130 | extern bool vt_dont_switch; |
131 | extern int default_utf8; |
132 | extern int global_cursor_default; |
133 | |
134 | struct vt_spawn_console { |
135 | spinlock_t lock; |
136 | struct pid *pid; |
137 | int sig; |
138 | }; |
139 | extern struct vt_spawn_console vt_spawn_con; |
140 | |
141 | int vt_move_to_console(unsigned int vt, int alloc); |
142 | |
143 | /* Interfaces for VC notification of character events (for accessibility etc) */ |
144 | |
145 | struct vt_notifier_param { |
146 | struct vc_data *vc; /* VC on which the update happened */ |
147 | unsigned int c; /* Printed char */ |
148 | }; |
149 | |
150 | int register_vt_notifier(struct notifier_block *nb); |
151 | int unregister_vt_notifier(struct notifier_block *nb); |
152 | |
153 | void hide_boot_cursor(bool hide); |
154 | |
155 | /* keyboard provided interfaces */ |
156 | int vt_do_diacrit(unsigned int cmd, void __user *up, int eperm); |
157 | int vt_do_kdskbmode(unsigned int console, unsigned int arg); |
158 | int vt_do_kdskbmeta(unsigned int console, unsigned int arg); |
159 | int vt_do_kbkeycode_ioctl(int cmd, struct kbkeycode __user *user_kbkc, |
160 | int perm); |
161 | int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm, |
162 | unsigned int console); |
163 | int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm); |
164 | int vt_do_kdskled(unsigned int console, int cmd, unsigned long arg, int perm); |
165 | int vt_do_kdgkbmode(unsigned int console); |
166 | int vt_do_kdgkbmeta(unsigned int console); |
167 | void vt_reset_unicode(unsigned int console); |
168 | int vt_get_shift_state(void); |
169 | void vt_reset_keyboard(unsigned int console); |
170 | int vt_get_leds(unsigned int console, int flag); |
171 | int vt_get_kbd_mode_bit(unsigned int console, int bit); |
172 | void vt_set_kbd_mode_bit(unsigned int console, int bit); |
173 | void vt_clr_kbd_mode_bit(unsigned int console, int bit); |
174 | void vt_set_led_state(unsigned int console, int leds); |
175 | void vt_kbd_con_start(unsigned int console); |
176 | void vt_kbd_con_stop(unsigned int console); |
177 | |
178 | #endif /* _VT_KERN_H */ |
179 | |