/*=================================================================
//
//        intr.c
//
//        HAL Interrupt API 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:          1998-10-08
//####DESCRIPTIONEND####
*/

#include <pkgconf/hal.h>

#include <cyg/infra/testcase.h>

#include <cyg/hal/hal_intr.h>
#include <cyg/hal/drv_api.h>

// Include HAL/Platform specifics
#include CYGBLD_HAL_PLATFORM_H

#ifdef CYGPKG_KERNEL
#include <pkgconf/kernel.h>             // Need to look for the RTC config.
#endif

// Fallback defaults (in case HAL didn't define these)
#ifndef CYGNUM_HAL_RTC_NUMERATOR       
#define CYGNUM_HAL_RTC_NUMERATOR     1000000000
#define CYGNUM_HAL_RTC_DENOMINATOR   100
#define CYGNUM_HAL_RTC_PERIOD        9999
#endif

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

#define ISR_DATA        0xAAAA1234

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

volatile cyg_count32 ticks = 0;
volatile cyg_count32 dsr_ticks = 0;
static cyg_interrupt intr;
static cyg_handle_t  intr_handle;

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

cyg_uint32 isr( cyg_uint32 vector, CYG_ADDRWORD data )
{
    CYG_TEST_CHECK( ISR_DATA == data , "Bad data passed to ISR");
    CYG_TEST_CHECK( CYGNUM_HAL_INTERRUPT_RTC == vector ,
                    "Bad vector passed to ISR");

    HAL_CLOCK_RESET( vector, CYGNUM_HAL_RTC_PERIOD );

    HAL_INTERRUPT_ACKNOWLEDGE( vector );
    
    ticks++;

    return CYG_ISR_CALL_DSR;
}

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

void dsr( cyg_uint32 vector, cyg_ucount32 count, CYG_ADDRWORD data )
{
    CYG_TEST_CHECK( ISR_DATA == data , "Bad data passed to DSR");
    CYG_TEST_CHECK( CYGNUM_HAL_INTERRUPT_RTC == vector ,
                    "Bad vector passed to DSR");

    dsr_ticks += count;
}

void intr_main( void )
{
    CYG_INTERRUPT_STATE oldints;

    cyg_drv_interrupt_create(CYGNUM_HAL_INTERRUPT_RTC, 1,
                             ISR_DATA, isr, dsr, &intr_handle, &intr);
    cyg_drv_interrupt_attach(intr_handle);
    HAL_CLOCK_INITIALIZE( CYGNUM_HAL_RTC_PERIOD );
    cyg_drv_interrupt_unmask(CYGNUM_HAL_INTERRUPT_RTC);

    HAL_ENABLE_INTERRUPTS();

    while( ticks < 10 )
    {
        
    }


    CYG_TEST_CHECK( dsr_ticks == 10, "DSR not called sufficient times");
    
    HAL_DISABLE_INTERRUPTS(oldints);

    CYG_TEST_PASS_FINISH("HAL interrupt test");
}


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

externC void
cyg_start( void )
{
    CYG_TEST_INIT();

    // Attaching the ISR will not succeed if the kernel real-time
    // clock has been configured in.
#ifndef CYGVAR_KERNEL_COUNTERS_CLOCK

    intr_main();

#else

    CYG_TEST_NA("Cannot override kernel real-time clock.");

#endif
}


// -------------------------------------------------------------------------
// EOF intr.c