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//==========================================================================

//

//      io/serial/common/haldiag.c

//

//      Serial I/O interface module using HAL I/O routines

//

//==========================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, 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.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 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.

//

// This exception does not invalidate any other reasons why a work based on

// this file might be covered by the GNU General Public License.

//

// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

// at http://sources.redhat.com/ecos/ecos-license/

// -------------------------------------------

//####ECOSGPLCOPYRIGHTEND####

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):   gthomas

// Contributors:  gthomas

// Date:        1999-02-04

// Purpose:     HAL/diag serial driver

// Description: 

//

//####DESCRIPTIONEND####

//

//==========================================================================

#include <pkgconf/io.h>

#include <pkgconf/io_serial.h>

#ifdef CYGPKG_IO_SERIAL_HALDIAG

#include <cyg/io/io.h>

#include <cyg/io/devtab.h>

#include <cyg/io/serial.h>

#include <cyg/infra/diag.h>

#include <cyg/hal/hal_diag.h>

static bool haldiag_init(struct cyg_devtab_entry *tab);

static bool haldiag_putc(serial_channel *chan, unsigned char c);

static unsigned char haldiag_getc(serial_channel *chan);

static Cyg_ErrNo haldiag_set_config(serial_channel *chan, cyg_uint32 key,

                                    const void *xbuf, cyg_uint32 *len);

static SERIAL_FUNS(haldiag_funs,

                   haldiag_putc,

                   haldiag_getc,

                   haldiag_set_config,

                   0,                      // start xmit - not used

    );

static int _no_data;

static SERIAL_CHANNEL(haldiag_channel0,

               haldiag_funs,

               _no_data,

               CYG_SERIAL_BAUD_DEFAULT,

               CYG_SERIAL_STOP_DEFAULT,

               CYG_SERIAL_PARITY_DEFAULT,

               CYG_SERIAL_WORD_LENGTH_DEFAULT,

               CYG_SERIAL_FLAGS_DEFAULT

    );

DEVTAB_ENTRY(haldiag_io0,

             "/dev/haldiag",

             0,                     // Does not depend on a lower level interface

             &cyg_io_serial_devio,

             haldiag_init,

             0,                     // No initialization/lookup needed

             &haldiag_channel0);

static void

haldiag_config_port(serial_channel *chan)

{

}

static bool

haldiag_init(struct cyg_devtab_entry *tab)

{

    serial_channel *chan = (serial_channel *)tab->priv;

#ifdef CYGDBG_IO_INIT

    diag_printf("HAL/diag SERIAL init\n");

#endif

    haldiag_config_port(chan);

    return true;

}

// Return 'true' if character is sent to device

static bool

haldiag_putc(serial_channel *chan, unsigned char c)

{

    HAL_DIAG_WRITE_CHAR(c);

    return true;

}

static unsigned char

haldiag_getc(serial_channel *chan)

{

    unsigned char c;

    HAL_DIAG_READ_CHAR(c);

    return c;

}

static Cyg_ErrNo

haldiag_set_config(serial_channel *chan, cyg_uint32 key, const void *xbuf,

                   cyg_uint32 *len)

{

    switch (key) {

    case CYG_IO_SET_CONFIG_SERIAL_INFO:

        diag_printf("%s\n", __FUNCTION__);

        return ENOERR;

    default:

        return -EINVAL;

    }

}

#endif // CYGPKG_IO_SERIAL_HALDIAG