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

//

//        intr0.cxx

//

//        Interrupt test 0

//

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

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

//#####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 <pkgconf/kernel.h>

#include <cyg/kernel/intr.hxx>

#include <cyg/hal/hal_intr.h>

#include <cyg/infra/testcase.h>

#include "testaux.hxx"

#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_ISR isr0, isr1;

static cyg_DSR dsr0, dsr1;

static char intr0_obj[sizeof(Cyg_Interrupt)];

static char intr1_obj[sizeof(Cyg_Interrupt)];

static cyg_uint32 isr0(cyg_vector vector, CYG_ADDRWORD data)

{

    CYG_UNUSED_PARAM(CYG_ADDRWORD, data);

    Cyg_Interrupt::acknowledge_interrupt(vector);

    return 0;

}

static void dsr0(cyg_vector vector, cyg_ucount32 count, CYG_ADDRWORD data)

{

    CYG_UNUSED_PARAM(cyg_vector, vector);

    CYG_UNUSED_PARAM(cyg_ucount32, count);

    CYG_UNUSED_PARAM(CYG_ADDRWORD, data);

}

static cyg_uint32 isr1(cyg_vector vector, CYG_ADDRWORD data)

{

    CYG_UNUSED_PARAM(cyg_vector, vector);

    CYG_UNUSED_PARAM(CYG_ADDRWORD, data);

    return 0;

}

static void dsr1(cyg_vector vector, cyg_ucount32 count, CYG_ADDRWORD data)

{

    CYG_UNUSED_PARAM(cyg_vector, vector);

    CYG_UNUSED_PARAM(cyg_ucount32, count);

    CYG_UNUSED_PARAM(CYG_ADDRWORD, data);

}

static bool flash( void )

{

    Cyg_Interrupt intr0 = Cyg_Interrupt(CYGNUM_HAL_ISR_MIN, PRIO_A,

                                        (CYG_ADDRWORD)333, isr0, dsr0 );

    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 vsr0;

static void vsr0()

{

}

void intr0_main( void )

{

    CYG_TEST_INIT();

    CHECK(flash());

    CHECK(flash());

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

    int in_use;

    cyg_vector lvl1 = CYGNUM_HAL_ISR_MIN + (1 % CYGNUM_HAL_ISR_COUNT);

    HAL_INTERRUPT_IN_USE( lvl1, in_use );

    Cyg_Interrupt* intr0 = NULL;

    if (!in_use)

        intr0 = new((void *)&intr0_obj[0]) Cyg_Interrupt( lvl1, PRIO_B, (CYG_ADDRWORD)777, isr0, dsr0 );

    cyg_vector lvl2 = CYGNUM_HAL_ISR_MIN + ( 15 % CYGNUM_HAL_ISR_COUNT);

    HAL_INTERRUPT_IN_USE( lvl2, in_use );

    Cyg_Interrupt* intr1 = NULL;

    if (!in_use && lvl1 != lvl2)

        intr1 = new((void *)&intr1_obj[0]) Cyg_Interrupt( lvl2, PRIO_C, 888, isr1, dsr1 );

    // Check these functions at least exist

    Cyg_Interrupt::disable_interrupts();

    Cyg_Interrupt::enable_interrupts();

    if (intr0)

        intr0->attach();

    if (intr1)

        intr1->attach();

    if (intr0)

        intr0->detach();

    if (intr1)

        intr1->detach();

    // 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_vector v = (CYGNUM_HAL_VSR_MIN + 11) % CYGNUM_HAL_VSR_COUNT;

    cyg_VSR *old_vsr, *new_vsr;

    Cyg_Interrupt::set_vsr( v, vsr0, &old_vsr );

    Cyg_Interrupt::get_vsr( v, &new_vsr );

    CHECK( vsr0 == new_vsr );

    new_vsr = NULL;

    Cyg_Interrupt::set_vsr( v, old_vsr, &new_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 != new_vsr);

    cyg_vector v1;

#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);

    Cyg_Interrupt::mask_interrupt(v1);

    Cyg_Interrupt::unmask_interrupt(v1);

    Cyg_Interrupt::configure_interrupt(v1, true, true);

    CYG_TEST_PASS_FINISH("Intr 0 OK");

}

externC void

cyg_start( void )

{

#ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG

    cyg_hal_invoke_constructors();

#endif

    intr0_main();

}

// EOF intr0.cxx