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

//

//        kintr0.c

//

//        Kernel C API Intr test 0

//

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

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

// 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):     dsm

// Contributors:  dsm, jlarmour

// Date:          1999-02-16

// Description:   Very basic test of interrupt objects

// Options:

//     CYGIMP_KERNEL_INTERRUPTS_DSRS_TABLE

//     CYGNUM_KERNEL_INTERRUPTS_DSRS_TABLE_SIZE

//     CYGIMP_KERNEL_INTERRUPTS_DSRS_LIST

//     CYGSEM_KERNEL_INTERRUPTS_DSRS_LIST_FIFO

//####DESCRIPTIONEND####

*/

#include <cyg/kernel/kapi.h>

#include <cyg/hal/hal_intr.h>

#include <cyg/infra/testcase.h>

#ifdef CYGFUN_KERNEL_API_C

#include "testaux.h"

#ifdef HAL_INTR_TEST_PRIO_A

# define PRIO_A HAL_INTR_TEST_PRIO_A

#else

# define PRIO_A 0

#endif

#ifdef HAL_INTR_TEST_PRIO_B

# define PRIO_B HAL_INTR_TEST_PRIO_B

#else

# define PRIO_B 1

#endif

#ifdef HAL_INTR_TEST_PRIO_C

# define PRIO_C HAL_INTR_TEST_PRIO_C

#else

# define PRIO_C 1

#endif

static cyg_interrupt intr_obj[2];

static cyg_handle_t intr0, intr1;

static cyg_ISR_t isr0, isr1;

static cyg_DSR_t dsr0, dsr1;

static cyg_uint32 isr0(cyg_vector_t vector, cyg_addrword_t data)

{

    CYG_UNUSED_PARAM(cyg_addrword_t, data);

    cyg_interrupt_acknowledge(vector);

    return 0;

}

static void dsr0(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)

{

    CYG_UNUSED_PARAM(cyg_vector_t, vector);

    CYG_UNUSED_PARAM(cyg_ucount32, count);

    CYG_UNUSED_PARAM(cyg_addrword_t, data);

}

static cyg_uint32 isr1(cyg_vector_t vector, cyg_addrword_t data)

{

    CYG_UNUSED_PARAM(cyg_vector_t, vector);

    CYG_UNUSED_PARAM(cyg_addrword_t, data);

    return 0;

}

static void dsr1(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)

{

    CYG_UNUSED_PARAM(cyg_vector_t, vector);

    CYG_UNUSED_PARAM(cyg_ucount32, count);

    CYG_UNUSED_PARAM(cyg_addrword_t, data);

}

static bool flash( void )

{

    cyg_handle_t handle;

    cyg_interrupt intr;

    cyg_interrupt_create(CYGNUM_HAL_ISR_MIN, PRIO_A, (cyg_addrword_t)333,

                         isr0, dsr0, &handle, &intr );

    cyg_interrupt_delete(handle);

    return true;

}

/* IMPORTANT: The calling convention for VSRs is target dependent.  It is

 * unlikely that a plain C or C++ routine would function correctly on any

 * particular platform, even if it could correctly access the system

 * resources necessary to handle the event that caused it to be called.

 * VSRs usually must be written in assembly language.

 *

 * This is just a test program.  The routine vsr0() below is defined simply

 * to define an address that will be in executable memory.  If an event

 * causes this VSR to be called, all bets are off.  If it is accidentally

 * installed in the vector for the realtime clock, the system will likely

 * freeze.

 */

static cyg_VSR_t vsr0;

static void vsr0()

{

}

void kintr0_main( void )

{

    cyg_vector_t v = (CYGNUM_HAL_VSR_MIN + 11) % CYGNUM_HAL_VSR_COUNT;

    cyg_vector_t v1;

    cyg_vector_t lvl1 = CYGNUM_HAL_ISR_MIN + (1 % CYGNUM_HAL_ISR_COUNT);

    cyg_vector_t lvl2 = CYGNUM_HAL_ISR_MIN + (15 % CYGNUM_HAL_ISR_COUNT);

    int in_use;

    cyg_VSR_t *old_vsr, *new_vsr;

    CYG_TEST_INIT();

#ifdef CYGPKG_HAL_MIPS_TX39    

    // This can be removed when PR 17831 is fixed

    if ( cyg_test_is_simulator )

        v1 = 12 % CYGNUM_HAL_ISR_COUNT;

    else /* NOTE TRAILING ELSE... */

#endif

    v1 = CYGNUM_HAL_ISR_MIN + ( 6 % CYGNUM_HAL_ISR_COUNT);

    CHECK(flash());

    CHECK(flash());

    // Make sure the chosen levels are not already in use.

    HAL_INTERRUPT_IN_USE( lvl1, in_use );

    intr0 = 0;

    if (!in_use)

        cyg_interrupt_create(lvl1, PRIO_B, (cyg_addrword_t)777,

                             isr0, dsr0, &intr0, &intr_obj[0]);

    HAL_INTERRUPT_IN_USE( lvl2, in_use );

    intr1 = 0;

    if (!in_use && lvl1 != lvl2)

        cyg_interrupt_create(lvl2, PRIO_C, 888,

                             isr1, dsr1, &intr1, &intr_obj[1]);

    // Check these functions at least exist

    cyg_interrupt_disable();

    cyg_interrupt_enable();

    if (intr0)

        cyg_interrupt_attach(intr0);

    if (intr1)

        cyg_interrupt_attach(intr1);

    if (intr0)

        cyg_interrupt_detach(intr0);

    if (intr1)

        cyg_interrupt_detach(intr1);

    // If this attaching interrupt replaces the previous interrupt

    // instead of adding to it we could be in a big mess if the

    // vector is being used by something important.

    cyg_interrupt_get_vsr( v, &old_vsr );

    cyg_interrupt_set_vsr( v, vsr0 );

    cyg_interrupt_get_vsr( v, &new_vsr );

    CHECK( vsr0 == new_vsr );

    new_vsr = NULL;

    cyg_interrupt_get_vsr( v, &new_vsr );

    cyg_interrupt_set_vsr( v, old_vsr );

    CHECK( new_vsr == vsr0 );

    cyg_interrupt_set_vsr( v, new_vsr );

    new_vsr = NULL;

    cyg_interrupt_get_vsr( v, &new_vsr );

    CHECK( vsr0 == new_vsr );

    cyg_interrupt_set_vsr( v, old_vsr );

    CHECK( vsr0 == new_vsr );

    new_vsr = NULL;

    cyg_interrupt_get_vsr( v, &new_vsr );

    CHECK( old_vsr == new_vsr );

    CHECK( NULL != vsr0 );

    cyg_interrupt_mask(v1);

    cyg_interrupt_unmask(v1);

    cyg_interrupt_configure(v1, true, true);

    CYG_TEST_PASS_FINISH("Kernel C API Intr 0 OK");

}

externC void

cyg_start( void )

{

    kintr0_main();

}

#else /* def CYGFUN_KERNEL_API_C */

externC void

cyg_start( void )

{

    CYG_TEST_INIT();

    CYG_TEST_NA("Kernel C API layer disabled");

}

#endif /* def CYGFUN_KERNEL_API_C */

/* EOF kintr0.c */