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/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2014 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU General Public License, as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any
* later version. Please see the file LICENSE-GPL for details.
*
* Web Page: http://mielke.cc/brltty/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#ifndef BRLTTY_INCLUDED_BRL_DRIVER
#define BRLTTY_INCLUDED_BRL_DRIVER
#include <stdio.h>
#include "brl_types.h"
#include "brl_cmds.h"
#include "brl_utils.h"
#include "brl_base.h"
#include "status_types.h"
#include "io_generic.h"
#include "cmd_enqueue.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifdef BRLPARMS
static const char *const brl_parameters[] = {BRLPARMS, NULL};
#else /* BRLPARMS */
#define brl_parameters NULL
#endif /* BRLPARMS */
#ifdef BRL_STATUS_FIELDS
static const unsigned char brl_statusFields[] = {BRL_STATUS_FIELDS, sfEnd};
#else /* BRL_STATUS_FIELDS */
#define brl_statusFields NULL
#endif /* BRL_STATUS_FIELDS */
static int brl_construct (BrailleDisplay *brl, char **parameters, const char *device);
static void brl_destruct (BrailleDisplay *brl);
static int brl_readCommand (BrailleDisplay *brl, KeyTableCommandContext context);
static int brl_writeWindow (BrailleDisplay *brl, const wchar_t *characters);
#ifdef BRL_HAVE_STATUS_CELLS
static int brl_writeStatus (BrailleDisplay *brl, const unsigned char *cells);
#else /* BRL_HAVE_STATUS_CELLS */
#define brl_writeStatus NULL
#endif /* BRL_HAVE_STATUS_CELLS */
#ifdef BRL_HAVE_PACKET_IO
static ssize_t brl_readPacket (BrailleDisplay *brl, void *buffer, size_t size);
static ssize_t brl_writePacket (BrailleDisplay *brl, const void *buffer, size_t size);
static int brl_reset (BrailleDisplay *brl);
#else /* BRL_HAVE_PACKET_IO */
#define brl_readPacket NULL
#define brl_writePacket NULL
#define brl_reset NULL
#endif /* BRL_HAVE_PACKET_IO */
#ifdef BRL_HAVE_KEY_CODES
static int brl_readKey (BrailleDisplay *brl);
static int brl_keyToCommand (BrailleDisplay *brl, KeyTableCommandContext context, int key);
#else /* BRL_HAVE_KEY_CODES */
#define brl_readKey NULL
#define brl_keyToCommand NULL
#endif /* BRL_HAVE_KEY_CODES */
#ifndef BRLSYMBOL
#define BRLSYMBOL CONCATENATE(brl_driver_,DRIVER_CODE)
#endif /* BRLSYMBOL */
extern const BrailleDriver BRLSYMBOL;
const BrailleDriver BRLSYMBOL = {
DRIVER_DEFINITION_INITIALIZER,
brl_parameters,
brl_statusFields,
brl_construct,
brl_destruct,
brl_readCommand,
brl_writeWindow,
brl_writeStatus,
brl_readPacket,
brl_writePacket,
brl_reset,
brl_readKey,
brl_keyToCommand
};
DRIVER_VERSION_DECLARATION(brl);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* BRLTTY_INCLUDED_BRL_DRIVER */
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