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/* input.h - The interface to and for an input driver.
Copyright (C) 2002 Free Software Foundation, Inc.
Written by Marcus Brinkmann.
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
The GNU Hurd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */
#ifndef _INPUT_H_
#define _INPUT_H_ 1
#include <errno.h>
#include <stddef.h>
#include <hurd/cons.h>
/* The input drivers are set up by the driver's initialization routine
and added to the console client with driver_add_input. All
subsequent operations on the display are fully synchronized by the
caller. The driver deinitialization routine should call
driver_remove_input. */
/* Forward declaration. */
struct input_ops;
typedef struct input_ops *input_ops_t;
/* Add the input source HANDLE with the operations OPS to the console
client. As soon as this is called, operations on this input source
may be performed, even before the function returns. */
error_t driver_add_input (input_ops_t ops, void *handle);
/* Remove the input HANDLE with the operations OPS from the console
client. As soon as this function returns, no operations will be
performed on the input source anymore. */
error_t driver_remove_input (input_ops_t ops, void *handle);
/* Enter SIZE bytes from the buffer BUF into the currently active
console. This can be called by the input driver at any time. */
error_t console_input (char *buf, size_t size);
/* Scroll the active console by TYPE and VALUE as specified by
cons_vcons_scrollback. */
int console_scrollback (cons_scroll_t type, float value);
/* Switch the active console to console ID or DELTA (relative to the
active console). */
error_t console_switch (int id, int delta);
/* Signal an error to the user. */
void console_error (const wchar_t *const err_msg);
/* Exit the console client. Does not return. */
void console_exit (void);
#if QUAERENDO_INVENIETIS
/* Do not use, do not remove. */
void console_deprecated (int key);
#endif
struct input_ops
{
/* Set the status of the scroll lock indication. */
error_t (*set_scroll_lock_status) (void *handle, int onoff);
/* Do not use, do not remove. */
void (*deprecated) (void *handle, int key);
};
#endif /* _INPUT_H_ */
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