[ALSA] Clean up duplicate includes in sound/core/
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / include / linux / console.h
blob56a7bcda49cb202cdbcc0093ee8fd8437edbd5d2
1 /*
2 * linux/include/linux/console.h
4 * Copyright (C) 1993 Hamish Macdonald
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file COPYING in the main directory of this archive
8 * for more details.
10 * Changed:
11 * 10-Mar-94: Arno Griffioen: Conversion for vt100 emulator port from PC LINUX
14 #ifndef _LINUX_CONSOLE_H_
15 #define _LINUX_CONSOLE_H_ 1
17 #include <linux/types.h>
19 struct vc_data;
20 struct console_font_op;
21 struct console_font;
22 struct module;
23 struct tty_struct;
26 * this is what the terminal answers to a ESC-Z or csi0c query.
28 #define VT100ID "\033[?1;2c"
29 #define VT102ID "\033[?6c"
31 struct 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 int (*con_set_palette)(struct vc_data *, unsigned char *);
50 int (*con_scrolldelta)(struct vc_data *, int);
51 int (*con_set_origin)(struct vc_data *);
52 void (*con_save_screen)(struct vc_data *);
53 u8 (*con_build_attr)(struct vc_data *, u8, u8, u8, u8, u8, u8);
54 void (*con_invert_region)(struct vc_data *, u16 *, int);
55 u16 *(*con_screen_pos)(struct vc_data *, int);
56 unsigned long (*con_getxy)(struct vc_data *, unsigned long, int *, int *);
59 extern const struct consw *conswitchp;
61 extern const struct consw dummy_con; /* dummy console buffer */
62 extern const struct consw vga_con; /* VGA text console */
63 extern const struct consw newport_con; /* SGI Newport console */
64 extern const struct consw prom_con; /* SPARC PROM console */
66 int con_is_bound(const struct consw *csw);
67 int register_con_driver(const struct consw *csw, int first, int last);
68 int unregister_con_driver(const struct consw *csw);
69 int take_over_console(const struct consw *sw, int first, int last, int deflt);
70 void give_up_console(const struct consw *sw);
71 /* scroll */
72 #define SM_UP (1)
73 #define SM_DOWN (2)
75 /* cursor */
76 #define CM_DRAW (1)
77 #define CM_ERASE (2)
78 #define CM_MOVE (3)
81 * The interface for a console, or any other device that wants to capture
82 * console messages (printer driver?)
84 * If a console driver is marked CON_BOOT then it will be auto-unregistered
85 * when the first real console is registered. This is for early-printk drivers.
88 #define CON_PRINTBUFFER (1)
89 #define CON_CONSDEV (2) /* Last on the command line */
90 #define CON_ENABLED (4)
91 #define CON_BOOT (8)
92 #define CON_ANYTIME (16) /* Safe to call when cpu is offline */
94 struct console {
95 char name[16];
96 void (*write)(struct console *, const char *, unsigned);
97 int (*read)(struct console *, char *, unsigned);
98 struct tty_driver *(*device)(struct console *, int *);
99 void (*unblank)(void);
100 int (*setup)(struct console *, char *);
101 int (*early_setup)(void);
102 short flags;
103 short index;
104 int cflag;
105 void *data;
106 struct console *next;
109 extern int add_preferred_console(char *name, int idx, char *options);
110 extern int update_console_cmdline(char *name, int idx, char *name_new, int idx_new, char *options);
111 extern void register_console(struct console *);
112 extern int unregister_console(struct console *);
113 extern struct console *console_drivers;
114 extern void acquire_console_sem(void);
115 extern int try_acquire_console_sem(void);
116 extern void release_console_sem(void);
117 extern void console_conditional_schedule(void);
118 extern void console_unblank(void);
119 extern struct tty_driver *console_device(int *);
120 extern void console_stop(struct console *);
121 extern void console_start(struct console *);
122 extern int is_console_locked(void);
124 #ifndef CONFIG_DISABLE_CONSOLE_SUSPEND
125 /* Suspend and resume console messages over PM events */
126 extern void suspend_console(void);
127 extern void resume_console(void);
128 #else
129 static inline void suspend_console(void) {}
130 static inline void resume_console(void) {}
131 #endif /* CONFIG_DISABLE_CONSOLE_SUSPEND */
133 int mda_console_init(void);
134 void prom_con_init(void);
136 void vcs_make_sysfs(struct tty_struct *tty);
137 void vcs_remove_sysfs(struct tty_struct *tty);
139 /* Some debug stub to catch some of the obvious races in the VT code */
140 #if 1
141 #define WARN_CONSOLE_UNLOCKED() WARN_ON(!is_console_locked() && !oops_in_progress)
142 #else
143 #define WARN_CONSOLE_UNLOCKED()
144 #endif
146 /* VESA Blanking Levels */
147 #define VESA_NO_BLANKING 0
148 #define VESA_VSYNC_SUSPEND 1
149 #define VESA_HSYNC_SUSPEND 2
150 #define VESA_POWERDOWN 3
152 #endif /* _LINUX_CONSOLE_H */