157 lines
5.2 KiB
C
157 lines
5.2 KiB
C
/*
|
|
* linux/include/linux/console.h
|
|
*
|
|
* Copyright (C) 1993 Hamish Macdonald
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file COPYING in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Changed:
|
|
* 10-Mar-94: Arno Griffioen: Conversion for vt100 emulator port from PC LINUX
|
|
*/
|
|
|
|
#ifndef _LINUX_CONSOLE_H_
|
|
#define _LINUX_CONSOLE_H_ 1
|
|
|
|
#include <linux/types.h>
|
|
|
|
struct vc_data;
|
|
struct console_font_op;
|
|
struct console_font;
|
|
struct module;
|
|
struct tty_struct;
|
|
|
|
/*
|
|
* this is what the terminal answers to a ESC-Z or csi0c query.
|
|
*/
|
|
#define VT100ID "\033[?1;2c"
|
|
#define VT102ID "\033[?6c"
|
|
|
|
struct consw {
|
|
struct module *owner;
|
|
const char *(*con_startup)(void);
|
|
void (*con_init)(struct vc_data *, int);
|
|
void (*con_deinit)(struct vc_data *);
|
|
void (*con_clear)(struct vc_data *, int, int, int, int);
|
|
void (*con_putc)(struct vc_data *, int, int, int);
|
|
void (*con_putcs)(struct vc_data *, const unsigned short *, int, int, int);
|
|
void (*con_cursor)(struct vc_data *, int);
|
|
int (*con_scroll)(struct vc_data *, int, int, int, int);
|
|
void (*con_bmove)(struct vc_data *, int, int, int, int, int, int);
|
|
int (*con_switch)(struct vc_data *);
|
|
int (*con_blank)(struct vc_data *, int, int);
|
|
int (*con_font_set)(struct vc_data *, struct console_font *, unsigned);
|
|
int (*con_font_get)(struct vc_data *, struct console_font *);
|
|
int (*con_font_default)(struct vc_data *, struct console_font *, char *);
|
|
int (*con_font_copy)(struct vc_data *, int);
|
|
int (*con_resize)(struct vc_data *, unsigned int, unsigned int,
|
|
unsigned int);
|
|
int (*con_set_palette)(struct vc_data *, unsigned char *);
|
|
int (*con_scrolldelta)(struct vc_data *, int);
|
|
int (*con_set_origin)(struct vc_data *);
|
|
void (*con_save_screen)(struct vc_data *);
|
|
u8 (*con_build_attr)(struct vc_data *, u8, u8, u8, u8, u8, u8);
|
|
void (*con_invert_region)(struct vc_data *, u16 *, int);
|
|
u16 *(*con_screen_pos)(struct vc_data *, int);
|
|
unsigned long (*con_getxy)(struct vc_data *, unsigned long, int *, int *);
|
|
};
|
|
|
|
extern const struct consw *conswitchp;
|
|
|
|
extern const struct consw dummy_con; /* dummy console buffer */
|
|
extern const struct consw vga_con; /* VGA text console */
|
|
extern const struct consw newport_con; /* SGI Newport console */
|
|
extern const struct consw prom_con; /* SPARC PROM console */
|
|
|
|
int con_is_bound(const struct consw *csw);
|
|
int register_con_driver(const struct consw *csw, int first, int last);
|
|
int unregister_con_driver(const struct consw *csw);
|
|
int take_over_console(const struct consw *sw, int first, int last, int deflt);
|
|
void give_up_console(const struct consw *sw);
|
|
/* scroll */
|
|
#define SM_UP (1)
|
|
#define SM_DOWN (2)
|
|
|
|
/* cursor */
|
|
#define CM_DRAW (1)
|
|
#define CM_ERASE (2)
|
|
#define CM_MOVE (3)
|
|
|
|
/*
|
|
* The interface for a console, or any other device that wants to capture
|
|
* console messages (printer driver?)
|
|
*
|
|
* If a console driver is marked CON_BOOT then it will be auto-unregistered
|
|
* when the first real console is registered. This is for early-printk drivers.
|
|
*/
|
|
|
|
#define CON_PRINTBUFFER (1)
|
|
#define CON_CONSDEV (2) /* Last on the command line */
|
|
#define CON_ENABLED (4)
|
|
#define CON_BOOT (8)
|
|
#define CON_ANYTIME (16) /* Safe to call when cpu is offline */
|
|
#define CON_BRL (32) /* Used for a braille device */
|
|
|
|
struct console {
|
|
char name[16];
|
|
void (*write)(struct console *, const char *, unsigned);
|
|
int (*read)(struct console *, char *, unsigned);
|
|
struct tty_driver *(*device)(struct console *, int *);
|
|
void (*unblank)(void);
|
|
int (*setup)(struct console *, char *);
|
|
int (*early_setup)(void);
|
|
short flags;
|
|
short index;
|
|
int cflag;
|
|
void *data;
|
|
struct console *next;
|
|
};
|
|
|
|
extern int console_set_on_cmdline;
|
|
|
|
extern int add_preferred_console(char *name, int idx, char *options);
|
|
extern int update_console_cmdline(char *name, int idx, char *name_new, int idx_new, char *options);
|
|
extern void register_console(struct console *);
|
|
extern int unregister_console(struct console *);
|
|
extern struct console *console_drivers;
|
|
extern void acquire_console_sem(void);
|
|
extern int try_acquire_console_sem(void);
|
|
extern void release_console_sem(void);
|
|
extern void console_conditional_schedule(void);
|
|
extern void console_unblank(void);
|
|
extern struct tty_driver *console_device(int *);
|
|
extern void console_stop(struct console *);
|
|
extern void console_start(struct console *);
|
|
extern int is_console_locked(void);
|
|
extern int braille_register_console(struct console *, int index,
|
|
char *console_options, char *braille_options);
|
|
extern int braille_unregister_console(struct console *);
|
|
|
|
extern int console_suspend_enabled;
|
|
|
|
/* Suspend and resume console messages over PM events */
|
|
extern void suspend_console(void);
|
|
extern void resume_console(void);
|
|
|
|
int mda_console_init(void);
|
|
void prom_con_init(void);
|
|
|
|
void vcs_make_sysfs(struct tty_struct *tty);
|
|
void vcs_remove_sysfs(struct tty_struct *tty);
|
|
|
|
/* Some debug stub to catch some of the obvious races in the VT code */
|
|
#if 1
|
|
#define WARN_CONSOLE_UNLOCKED() WARN_ON(!is_console_locked() && !oops_in_progress)
|
|
#else
|
|
#define WARN_CONSOLE_UNLOCKED()
|
|
#endif
|
|
|
|
/* VESA Blanking Levels */
|
|
#define VESA_NO_BLANKING 0
|
|
#define VESA_VSYNC_SUSPEND 1
|
|
#define VESA_HSYNC_SUSPEND 2
|
|
#define VESA_POWERDOWN 3
|
|
|
|
#endif /* _LINUX_CONSOLE_H */
|