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#ifndef CYGONCE_PPP_PPP_IO_H
#define CYGONCE_PPP_PPP_IO_H
// ====================================================================
//
// ppp_io.h
//
// PPP IO interface
//
// ====================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 2003 Free Software Foundation, Inc.
//
// eCos 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.
//
// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// As a special exception, if other files instantiate templates or use
// macros or inline functions from this file, or you compile this file
// and link it with other works to produce a work based on this file,
// this file does not by itself cause the resulting work to be covered by
// the GNU General Public License. However the source code for this file
// must still be made available in accordance with section (3) of the GNU
// General Public License v2.
//
// This exception does not invalidate any other reasons why a work based
// on this file might be covered by the GNU General Public License.
// -------------------------------------------
// ####ECOSGPLCOPYRIGHTEND####
// ====================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): nickg
// Contributors: nickg
// Date: 2003-06-01
// Purpose: Internal PPP interfaces
// Description: This header describes the interfaces between
// the PPP daemon system dependent code in sys-ecos.c
// and the PPP line-discipline-derived code in ppp_io.c.
//
//####DESCRIPTIONEND####
//
// ====================================================================
#include <pkgconf/system.h>
#include <pkgconf/net.h>
#include <pkgconf/io_fileio.h>
#include <sys/uio.h>
#include <cyg/io/io.h>
#include <cyg/io/serial.h>
#include <cyg/io/serial.h>
#include <cyg/kernel/kapi.h>
#include <cyg/ppp/names.h>
#include <cyg/ppp/ppp.h>
// ====================================================================
// Fake TTY structure
//
// This is passed into the line discipline code and pretends to be a
// tty device. In actual fact we use it to store all the state for the
// connection.
struct tty
{
// IO device handle.
cyg_io_handle_t t_handle;
// Pointer to softc structure. This is the only field that the
// ex-BSD code actually accesses.
void *t_sc;
// Pointer to user's options
const cyg_ppp_options_t *options;
// Parameters for PPPD thread
cyg_handle_t pppd_thread;
volatile int pppd_wakeup;
volatile cyg_bool_t pppd_thread_running;
// Parameters for transmit thread
cyg_sem_t tx_sem;
cyg_handle_t tx_thread;
volatile cyg_bool_t tx_thread_running;
#ifdef CYGOPT_IO_SERIAL_SUPPORT_LINE_STATUS
// Serial line control
cyg_serial_line_status_callback_t serial_callbacks;
volatile cyg_uint32 carrier_detected;
#endif
// Alarm for implementing wait_input() timeout.
cyg_handle_t alarm;
cyg_alarm alarm_obj;
};
externC struct tty ppp_tty;
// ====================================================================
// This is called at the correct time in the PPPD to set up the
// options from the user's request. This has to be done after the
// protocols etc. have intitialized.
externC void cyg_ppp_options_install( const cyg_ppp_options_t *options );
// ====================================================================
// Definition of serial callback function. Used for carrier detection
// etc.
#ifdef CYGOPT_IO_SERIAL_SUPPORT_LINE_STATUS
externC void cyg_ppp_serial_callback( cyg_serial_line_status_t *s,
CYG_ADDRWORD priv );
#endif
// ====================================================================
// These are all renamed versions of the PPP line discipline
// functions. The PPPD code calls these directly to control the PPP
// driver and to send and receive control packets.
extern int cyg_ppp_pppopen __P((struct tty *tp));
extern int cyg_ppp_ppptioctl __P((struct tty *tp, u_long cmd, caddr_t data, int flag));
extern int cyg_ppp_pppinput __P((int c, struct tty *tp));
extern int cyg_ppp_pppwrite __P((struct tty *tp, struct uio *uio, int flag));
extern int cyg_ppp_pppread __P((struct tty *tp, struct uio *uio, int flag));
extern int cyg_ppp_pppclose __P((struct tty *tp, int flag));
extern int cyg_ppp_pppcheck __P((struct tty *tp));
// ====================================================================
// Start PPP transmission. This is called from the TX thread to cause
// any pending packets to be sent.
extern int cyg_ppp_pppstart __P((struct tty *tp));
// ====================================================================
#endif // CYGONCE_PPP_PPP_IO_H
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