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

//

//        kclock0.c

//

//        Kernel C API Clock test 0

//

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

// ####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

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// 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

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// must still be made available in accordance with section (3) of the GNU

// General Public License v2.

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

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

// ####ECOSGPLCOPYRIGHTEND####

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

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

//

// Author(s):     dsm

// Contributors:    dsm

// Date:          1998-03-20

// Description:   Tests some basic clock functions.

//####DESCRIPTIONEND####

*/

#include <cyg/kernel/kapi.h>

#include <cyg/infra/testcase.h>

#ifdef CYGVAR_KERNEL_COUNTERS_CLOCK

#ifdef CYGFUN_KERNEL_API_C

#include "testaux.h"

cyg_alarm_t call_me;

cyg_counter counter0o, counter1o;

cyg_handle_t counter0, counter1;

cyg_alarm alarmo[3];

cyg_handle_t alarm0, alarm1, alarm2;

cyg_resolution_t res, res0, res1;

cyg_clock clock0o;

cyg_handle_t clock0;

const cyg_uint32 big_number = 3333222111u;

cyg_bool_t flash( void )

{

    cyg_counter_create( &counter0, &counter0o );

    cyg_counter_create( &counter1, &counter1o );

    cyg_alarm_create( counter0,

                      call_me,

                      (cyg_addrword_t)12,

                      &alarm0,

                      &alarmo[0]);

    res.dividend = 1;

    res.divisor = 2;

    cyg_clock_create( res, &clock0, &clock0o );

    cyg_clock_delete( clock0 );

    cyg_alarm_delete( alarm0 );

    cyg_counter_delete( counter0 );

    cyg_counter_delete( counter1 );

    return true;

}

/* Testing alarms

//

// call_me is a function that will be called when an alarm is

// triggered.  It updates a global variable called which is CHECKed

// explicitly to see if the approriate alarms have been called.

*/

cyg_uint16 called = 0x0;

void call_me(cyg_handle_t alarm, cyg_addrword_t data)

{

    called ^= (int)data;

}

void call_me2(cyg_handle_t alarm, cyg_addrword_t data)

{

    call_me(alarm, (cyg_addrword_t)((int)data^0x10));

}

void kclock0_main(void)

{

    CYG_TEST_INIT();

    CHECK(flash());

    CHECK(flash());

    cyg_counter_create( &counter0, &counter0o);

    CHECK( 0 == cyg_counter_current_value( counter0 ) );

    cyg_counter_tick(counter0);

    CHECK( 1 == cyg_counter_current_value(counter0) );

    cyg_counter_tick(counter0);

    CHECK( 2 == cyg_counter_current_value(counter0) );

    cyg_counter_set_value( counter0, 0xffffffff );

    CHECK( 0xffffffff == cyg_counter_current_value(counter0) );

    cyg_counter_tick(counter0); // Overflows 32 bits

    CHECK( 0x100000000ULL == cyg_counter_current_value(counter0) );

    cyg_counter_set_value(counter0, 11);

    CHECK( 11 == cyg_counter_current_value(counter0) );

    /* the call_me functions cause the "called" bits to toggle

    // checking the value of called checks the parity of # of calls

    // made by each alarm.

    */

    cyg_alarm_create(counter0,

                     call_me,  (cyg_addrword_t)0x1, &alarm0, &alarmo[0]);

    cyg_alarm_create(counter0,

                     call_me,  (cyg_addrword_t)0x2, &alarm1, &alarmo[1]);

    cyg_alarm_create(counter0,

                     call_me2, (cyg_addrword_t)0x4, &alarm2, &alarmo[2]);

    CHECK( 0x00 == called );

    cyg_alarm_initialize(alarm0, 12,3);

    cyg_alarm_initialize(alarm2, 21,2);

    CHECK( 0x00 == called );

    cyg_counter_tick(counter0);         /* 12 a0 */

    CHECK( 0x01 == called );

    cyg_alarm_initialize(alarm1, 13,0);

    cyg_counter_tick(counter0);         /* 13 a1 */

    CHECK( 0x03 == called );

    cyg_alarm_initialize(alarm1, 17,0);

    cyg_counter_tick(counter0);         /* 14 */

    CHECK( 0x03 == called );

    cyg_counter_tick(counter0);         /* 15 a0 */

    CHECK( 0x02 == called );

    cyg_counter_tick(counter0);         /* 16 */

    cyg_counter_tick(counter0);         /* 17 a1 */

    CHECK( 0x00 == called );

    cyg_counter_tick(counter0);         /* 18 a0 */

    CHECK( 0x01 == called );

    cyg_counter_tick(counter0);         /* 19 */

    cyg_counter_tick(counter0);         /* 20 */

    cyg_counter_tick(counter0);         /* 21 a0 a2 */

    CHECK( 0x14 == called );

    cyg_counter_tick(counter0);         /* 22 */

    cyg_counter_tick(counter0);         /* 23 a2 */

    CHECK( 0x00 == called );

    cyg_alarm_disable(alarm2);

    cyg_counter_tick(counter0);         /* 24 a0 */

    cyg_counter_tick(counter0);         /* 25 */

    CHECK( 0x01 == called );

    cyg_alarm_enable(alarm2);           /* a2 (enabled at 25) */

    CHECK( 0x15 == called );

    cyg_counter_tick(counter0);         /* 26 */

    CHECK( 0x15 == called );

    cyg_counter_tick(counter0);         /* 27 a0 a2 */

    cyg_counter_tick(counter0);         /* 28 */

    CHECK( 0x00 == called );

    cyg_counter_tick(counter0);         /* 29 a2 */

    cyg_counter_tick(counter0);         /* 30 a0 */

    cyg_counter_tick(counter0);         /* 31 a2 */

    CHECK( 0x01 == called );

    res0.dividend = 100;

    res0.divisor   = 3;

    cyg_clock_create( res0, &clock0, &clock0o );

    res1 = cyg_clock_get_resolution(clock0);

    CHECK( res0.dividend == res1.dividend );

    CHECK( res0.divisor == res1.divisor );

    res1.dividend = 12;

    res1.divisor = 25;

    cyg_clock_set_resolution(clock0, res1);

    res0 = cyg_clock_get_resolution(clock0);

    CHECK( res0.dividend == res1.dividend );

    CHECK( res0.divisor == res1.divisor );

    cyg_clock_to_counter(clock0, &counter1);

    CHECK( 0 == cyg_counter_current_value( counter1 ) );

    CHECK( 0 == cyg_current_time() );

    cyg_counter_tick(counter1);

    CHECK( 1 == cyg_counter_current_value(counter1) );

    res0 = cyg_clock_get_resolution(cyg_real_time_clock());

    /* Current time should be 0 as interrupts will still be disabled */

    CHECK( 0 == cyg_current_time() );

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

}

externC void

cyg_start( void )

{

    kclock0_main();

}

#else // def CYGFUN_KERNEL_API_C

#define N_A_MSG "Kernel C API layer disabled"

#endif // def CYGFUN_KERNEL_API_C

#else // def CYGVAR_KERNEL_COUNTERS_CLOCK

#define N_A_MSG "Kernel real-time clock disabled"

#endif // def CYGVAR_KERNEL_COUNTERS_CLOCK

#ifdef N_A_MSG

externC void

cyg_start( void )

{

    CYG_TEST_INIT();

    CYG_TEST_NA( N_A_MSG );

}

#endif // N_A_MSG

// EOF kclock0.c