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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 register_con_driver(const struct consw *csw, int first, int last);
79int unregister_con_driver(const struct consw *csw);
80int do_unregister_con_driver(const struct consw *csw);
81int take_over_console(const struct consw *sw, int first, int last, int deflt);
82int do_take_over_console(const struct consw *sw, int first, int last, int deflt);
83void give_up_console(const struct consw *sw);
84#ifdef CONFIG_HW_CONSOLE
85int con_debug_enter(struct vc_data *vc);
86int con_debug_leave(void);
87#else
88static inline int con_debug_enter(struct vc_data *vc)
89{
90 return 0;
91}
92static inline int con_debug_leave(void)
93{
94 return 0;
95}
96#endif
97
98
99#define SM_UP (1)
100#define SM_DOWN (2)
101
102
103#define CM_DRAW (1)
104#define CM_ERASE (2)
105#define CM_MOVE (3)
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113
114
115#define CON_PRINTBUFFER (1)
116#define CON_CONSDEV (2)
117#define CON_ENABLED (4)
118#define CON_BOOT (8)
119#define CON_ANYTIME (16)
120#define CON_BRL (32)
121
122struct console {
123 char name[16];
124 void (*write)(struct console *, const char *, unsigned);
125 int (*read)(struct console *, char *, unsigned);
126 struct tty_driver *(*device)(struct console *, int *);
127 void (*unblank)(void);
128 int (*setup)(struct console *, char *);
129 int (*early_setup)(void);
130 short flags;
131 short index;
132 int cflag;
133 void *data;
134 struct console *next;
135};
136
137
138
139
140#define for_each_console(con) \
141 for (con = console_drivers; con != NULL; con = con->next)
142
143extern int console_set_on_cmdline;
144extern struct console *early_console;
145
146extern int add_preferred_console(char *name, int idx, char *options);
147extern int update_console_cmdline(char *name, int idx, char *name_new, int idx_new, char *options);
148extern void register_console(struct console *);
149extern int unregister_console(struct console *);
150extern struct console *console_drivers;
151extern void console_lock(void);
152extern int console_trylock(void);
153extern void console_unlock(void);
154extern void console_conditional_schedule(void);
155extern void console_unblank(void);
156extern struct tty_driver *console_device(int *);
157extern void console_stop(struct console *);
158extern void console_start(struct console *);
159extern int is_console_locked(void);
160extern int braille_register_console(struct console *, int index,
161 char *console_options, char *braille_options);
162extern int braille_unregister_console(struct console *);
163#ifdef CONFIG_TTY
164extern void console_sysfs_notify(void);
165#else
166static inline void console_sysfs_notify(void)
167{ }
168#endif
169extern bool console_suspend_enabled;
170
171
172extern void suspend_console(void);
173extern void resume_console(void);
174
175int mda_console_init(void);
176void prom_con_init(void);
177
178void vcs_make_sysfs(int index);
179void vcs_remove_sysfs(int index);
180
181
182#if 1
183#define WARN_CONSOLE_UNLOCKED() WARN_ON(!is_console_locked() && !oops_in_progress)
184#else
185#define WARN_CONSOLE_UNLOCKED()
186#endif
187
188
189#define VESA_NO_BLANKING 0
190#define VESA_VSYNC_SUSPEND 1
191#define VESA_HSYNC_SUSPEND 2
192#define VESA_POWERDOWN 3
193
194#ifdef CONFIG_VGA_CONSOLE
195extern bool vgacon_text_force(void);
196#endif
197
198#endif
199