Subversion Repositories openrisc

/*=================================================================

//

//        context.c

//

//        HAL Thread context handling test

//

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

// ####ECOSGPLCOPYRIGHTBEGIN####

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

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

// Copyright (C) 1998, 1999, 2000, 2001, 2002 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:          1998-10-07

//####DESCRIPTIONEND####

*/

#include <pkgconf/hal.h>

#include <pkgconf/infra.h>

#include <cyg/infra/testcase.h>

#include <cyg/infra/cyg_trac.h>

#include <cyg/hal/hal_arch.h>

#define CYG_TRACE_USER_BOOL 1

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

#define THREADS         4

#define STACKSIZE       (2*1024)

char stack[THREADS][STACKSIZE];

CYG_ADDRWORD sp[THREADS];

cyg_count32 switches = 0;

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

void entry0( CYG_ADDRWORD arg )

{

    CYG_TRACE1B("Thread %d started\n", arg );

    while( switches < 1000 )

    {

        HAL_THREAD_SWITCH_CONTEXT( &sp[arg], &sp[(arg+1) % THREADS] );

        CYG_TRACE1B("Thread %d resumed\n", arg );

        switches++;

    }

    CYG_TEST_PASS_FINISH("HAL Context test");

}

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

void context_main(void)

{

    int i;

    CYG_TEST_INIT();

    // Init all thread contexts:

    for( i = 0 ; i < THREADS; i++ )

    {

        sp[i] = (CYG_ADDRWORD)stack[i]+STACKSIZE;

        HAL_THREAD_INIT_CONTEXT( sp[i], i, entry0, i*0x01010000 );

    }

    // Load the first thread.

    HAL_THREAD_LOAD_CONTEXT( &sp[0] );

}

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

externC void

cyg_start( void )

{

    context_main();

}

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

/* EOF context.c */