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14#ifndef _LINUX_CONSOLE_H_
15#define _LINUX_CONSOLE_H_ 1
16
17#include <linux/types.h>
18
19struct vc_data;
20struct console_font_op;
21struct console_font;
22struct module;
23struct tty_struct;
24
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26
27
28#define VT100ID "\033[?1;2c"
29#define VT102ID "\033[?6c"
30
31struct consw {
32 struct module *owner;
33 const char *(*con_startup)(void);
34 void (*con_init)(struct vc_data *, int);
35 void (*con_deinit)(struct vc_data *);
36 void (*con_clear)(struct vc_data *, int, int, int, int);
37 void (*con_putc)(struct vc_data *, int, int, int);
38 void (*con_putcs)(struct vc_data *, const unsigned short *, int, int, int);
39 void (*con_cursor)(struct vc_data *, int);
40 int (*con_scroll)(struct vc_data *, int, int, int, int);
41 void (*con_bmove)(struct vc_data *, int, int, int, int, int, int);
42 int (*con_switch)(struct vc_data *);
43 int (*con_blank)(struct vc_data *, int, int);
44 int (*con_font_set)(struct vc_data *, struct console_font *, unsigned);
45 int (*con_font_get)(struct vc_data *, struct console_font *);
46 int (*con_font_default)(struct vc_data *, struct console_font *, char *);
47 int (*con_font_copy)(struct vc_data *, int);
48 int (*con_resize)(struct vc_data *, unsigned int, unsigned int,
49 unsigned int);
50 int (*con_set_palette)(struct vc_data *, unsigned char *);
51 int (*con_scrolldelta)(struct vc_data *, int);
52 int (*con_set_origin)(struct vc_data *);
53 void (*con_save_screen)(struct vc_data *);
54 u8 (*con_build_attr)(struct vc_data *, u8, u8, u8, u8, u8, u8);
55 void (*con_invert_region)(struct vc_data *, u16 *, int);
56 u16 *(*con_screen_pos)(struct vc_data *, int);
57 unsigned long (*con_getxy)(struct vc_data *, unsigned long, int *, int *);
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63 int (*con_debug_enter)(struct vc_data *);
64
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66
67 int (*con_debug_leave)(struct vc_data *);
68};
69
70extern const struct consw *conswitchp;
71
72extern const struct consw dummy_con;
73extern const struct consw vga_con;
74extern const struct consw newport_con;
75extern const struct consw prom_con;
76
77int con_is_bound(const struct consw *csw);
78int do_unregister_con_driver(const struct consw *csw);
79int do_take_over_console(const struct consw *sw, int first, int last, int deflt);
80void give_up_console(const struct consw *sw);
81#ifdef CONFIG_HW_CONSOLE
82int con_debug_enter(struct vc_data *vc);
83int con_debug_leave(void);
84#else
85static inline int con_debug_enter(struct vc_data *vc)
86{
87 return 0;
88}
89static inline int con_debug_leave(void)
90{
91 return 0;
92}
93#endif
94
95
96#define SM_UP (1)
97#define SM_DOWN (2)
98
99
100#define CM_DRAW (1)
101#define CM_ERASE (2)
102#define CM_MOVE (3)
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110
111
112#define CON_PRINTBUFFER (1)
113#define CON_CONSDEV (2)
114#define CON_ENABLED (4)
115#define CON_BOOT (8)
116#define CON_ANYTIME (16)
117#define CON_BRL (32)
118
119struct console {
120 char name[16];
121 void (*write)(struct console *, const char *, unsigned);
122 int (*read)(struct console *, char *, unsigned);
123 struct tty_driver *(*device)(struct console *, int *);
124 void (*unblank)(void);
125 int (*setup)(struct console *, char *);
126 int (*early_setup)(void);
127 short flags;
128 short index;
129 int cflag;
130 void *data;
131 struct console *next;
132};
133
134
135
136
137#define for_each_console(con) \
138 for (con = console_drivers; con != NULL; con = con->next)
139
140extern int console_set_on_cmdline;
141extern struct console *early_console;
142
143extern int add_preferred_console(char *name, int idx, char *options);
144extern int update_console_cmdline(char *name, int idx, char *name_new, int idx_new, char *options);
145extern void register_console(struct console *);
146extern int unregister_console(struct console *);
147extern struct console *console_drivers;
148extern void console_lock(void);
149extern int console_trylock(void);
150extern void console_unlock(void);
151extern void console_conditional_schedule(void);
152extern void console_unblank(void);
153extern struct tty_driver *console_device(int *);
154extern void console_stop(struct console *);
155extern void console_start(struct console *);
156extern int is_console_locked(void);
157extern int braille_register_console(struct console *, int index,
158 char *console_options, char *braille_options);
159extern int braille_unregister_console(struct console *);
160#ifdef CONFIG_TTY
161extern void console_sysfs_notify(void);
162#else
163static inline void console_sysfs_notify(void)
164{ }
165#endif
166extern bool console_suspend_enabled;
167
168
169extern void suspend_console(void);
170extern void resume_console(void);
171
172int mda_console_init(void);
173void prom_con_init(void);
174
175void vcs_make_sysfs(int index);
176void vcs_remove_sysfs(int index);
177
178
179#if 1
180#define WARN_CONSOLE_UNLOCKED() WARN_ON(!is_console_locked() && !oops_in_progress)
181#else
182#define WARN_CONSOLE_UNLOCKED()
183#endif
184
185
186#define VESA_NO_BLANKING 0
187#define VESA_VSYNC_SUSPEND 1
188#define VESA_HSYNC_SUSPEND 2
189#define VESA_POWERDOWN 3
190
191#ifdef CONFIG_VGA_CONSOLE
192extern bool vgacon_text_force(void);
193#endif
194
195#endif
196