kapi.cxx

ecos实时嵌入式操作系统

}

/*---------------------------------------------------------------------------*/
/* Per-thread data                                                           */

#ifdef CYGVAR_KERNEL_THREADS_DATA

externC cyg_ucount32 cyg_thread_new_data_index()
{
    Cyg_Thread::cyg_data_index index = Cyg_Thread::new_data_index();
    CYG_ASSERT(index >= 0, "failed to allocate data index" );
    return index;
}

externC void cyg_thread_free_data_index(cyg_ucount32 index)
{
    Cyg_Thread::free_data_index(index);
}

externC CYG_ADDRWORD cyg_thread_get_data(cyg_ucount32 index)
{
    return Cyg_Thread::get_data(index);
}

externC CYG_ADDRWORD *cyg_thread_get_data_ptr(cyg_ucount32 index)
{
    return Cyg_Thread::get_data_ptr(index);
}

externC void cyg_thread_set_data(cyg_ucount32 index, CYG_ADDRWORD 
data)
{
    Cyg_Thread::self()->set_data(index, data);
}
#endif

/*---------------------------------------------------------------------------*/
/* Thread destructors                                                        */

#ifdef CYGPKG_KERNEL_THREADS_DESTRUCTORS
__externC cyg_bool_t
cyg_thread_add_destructor( cyg_thread_destructor_fn fn,
                           cyg_addrword_t data )
{
        return Cyg_Thread::self()->add_destructor( fn, data );
}

__externC cyg_bool_t
cyg_thread_rem_destructor( cyg_thread_destructor_fn fn,
                           cyg_addrword_t data )
{
        return Cyg_Thread::self()->rem_destructor( fn, data );
}
#endif

/*---------------------------------------------------------------------------*/
/* Exception handling.                                                       */

#ifdef CYGPKG_KERNEL_EXCEPTIONS    
externC void cyg_exception_set_handler(
    cyg_code_t                  exception_number,
    cyg_exception_handler_t     *new_handler,
    cyg_addrword_t              new_data,
    cyg_exception_handler_t     **old_handler,
    cyg_addrword_t              *old_data
)
{
    Cyg_Thread::register_exception(
        exception_number,
        (cyg_exception_handler *)new_handler,
        (CYG_ADDRWORD)new_data,
        (cyg_exception_handler **)old_handler,
        (CYG_ADDRWORD *)old_data
        );
}

/* Clear exception handler to default                                        */
externC void cyg_exception_clear_handler(
    cyg_code_t                  exception_number
)
{
    Cyg_Thread::deregister_exception( exception_number );
}

/* Invoke exception handler                                                  */
externC void cyg_exception_call_handler(
    cyg_handle_t                thread,
    cyg_code_t                  exception_number,
    cyg_addrword_t              error_code
)
{
    Cyg_Thread *t = (Cyg_Thread *)thread;

    t->deliver_exception( exception_number, error_code );
}
#endif    

/*---------------------------------------------------------------------------*/
/* Interrupt handling                                                        */

externC void cyg_interrupt_create(
    cyg_vector_t        vector,         /* Vector to attach to               */
    cyg_priority_t      priority,       /* Queue priority                    */
    cyg_addrword_t      data,           /* Data pointer                      */
    cyg_ISR_t           *isr,           /* Interrupt Service Routine         */
    cyg_DSR_t           *dsr,           /* Deferred Service Routine          */
    cyg_handle_t        *handle,        /* returned handle                   */
    cyg_interrupt       *intr           /* put interrupt here                */
)
{
    CYG_ASSERT_SIZES( cyg_interrupt, Cyg_Interrupt );

    Cyg_Interrupt *t = new((void *)intr) Cyg_Interrupt (
        (cyg_vector)vector,
        (cyg_priority)priority,
        (CYG_ADDRWORD)data,
        (cyg_ISR *)isr,
        (cyg_DSR *)dsr );
    t=t;

    CYG_CHECK_DATA_PTR( handle, "Bad handle pointer" );
    *handle = (cyg_handle_t)intr;
}

externC void cyg_interrupt_delete( cyg_handle_t interrupt)
{
    ((Cyg_Interrupt *)interrupt)->~Cyg_Interrupt();
}

void cyg_interrupt_attach( cyg_handle_t interrupt )
{
    ((Cyg_Interrupt *)interrupt)->attach();
}

void cyg_interrupt_detach( cyg_handle_t interrupt )
{
    ((Cyg_Interrupt *)interrupt)->detach();
}

/* VSR manipulation */

externC void cyg_interrupt_get_vsr(
    cyg_vector_t        vector,         /* vector to get                     */
    cyg_VSR_t           **vsr           /* vsr got                           */
)
{
    Cyg_Interrupt::get_vsr( (cyg_vector)vector, (cyg_VSR **)vsr);
}

externC void cyg_interrupt_set_vsr(
    cyg_vector_t        vector,         /* vector to set                     */
    cyg_VSR_t           *vsr            /* vsr to set                        */
)
{
    Cyg_Interrupt::set_vsr( (cyg_vector)vector, (cyg_VSR *)vsr);
}

/* CPU level interrupt mask                                                  */
externC void cyg_interrupt_disable()
{
    Cyg_Interrupt::disable_interrupts();
}

externC void cyg_interrupt_enable()
{
    Cyg_Interrupt::enable_interrupts();
}

/* Interrupt controller access                                               */
externC void cyg_interrupt_mask(cyg_vector_t vector)
{
    Cyg_Interrupt::mask_interrupt( (cyg_vector)vector);
}

externC void cyg_interrupt_mask_intunsafe(cyg_vector_t vector)
{
    Cyg_Interrupt::mask_interrupt_intunsafe( (cyg_vector)vector);
}

externC void cyg_interrupt_unmask(cyg_vector_t vector)
{
    Cyg_Interrupt::unmask_interrupt( (cyg_vector)vector);
}

externC void cyg_interrupt_unmask_intunsafe(cyg_vector_t vector)
{
    Cyg_Interrupt::unmask_interrupt_intunsafe( (cyg_vector)vector);
}

externC void cyg_interrupt_acknowledge(cyg_vector_t vector)
{
    Cyg_Interrupt::acknowledge_interrupt( (cyg_vector)vector);
}


externC void cyg_interrupt_configure(
    cyg_vector_t        vector,         /* vector to configure               */
    cyg_bool_t          level,          /* level or edge triggered           */
    cyg_bool_t          up              /* rising/faling edge, high/low level*/
)
{
    Cyg_Interrupt::configure_interrupt( (cyg_vector)vector, level, up );
}

externC void cyg_interrupt_set_cpu(
    cyg_vector_t        vector,         /* vector to control                 */
    cyg_cpu_t           cpu             /* CPU to set                        */
)
{
#ifdef CYGPKG_KERNEL_SMP_SUPPORT    
    Cyg_Interrupt::set_cpu( vector, cpu );
#endif    
}

externC cyg_cpu_t cyg_interrupt_get_cpu(
    cyg_vector_t        vector          /* vector to control                 */
)
{
#ifdef CYGPKG_KERNEL_SMP_SUPPORT        
    return Cyg_Interrupt::get_cpu( vector );
#else
    return CYG_KERNEL_CPU_THIS();
#endif    
    
}

/*---------------------------------------------------------------------------*/
/* Counters, Clocks and Alarms                                               */

externC void cyg_counter_create(
    cyg_handle_t        *handle,        /* returned counter handle           */
    cyg_counter         *counter        /* put counter here                  */
)
{
    CYG_ASSERT_SIZES( cyg_counter, Cyg_Counter );

    Cyg_Counter *t = new((void *)counter) Cyg_Counter ();
    t=t;

    CYG_CHECK_DATA_PTR( handle, "Bad handle pointer" );
    *handle = (cyg_handle_t)counter;
}

externC void cyg_counter_delete(cyg_handle_t counter)
{
    ((Cyg_Counter *)counter)->~Cyg_Counter();
}

/* Return current value of counter                                           */
externC cyg_tick_count_t cyg_counter_current_value(cyg_handle_t counter)
{
    return ((Cyg_Counter *)counter)->current_value();
}

/* Set new current value                                                     */
externC void cyg_counter_set_value(
    cyg_handle_t        counter,
    cyg_tick_count_t new_value
)
{
    ((Cyg_Counter *)counter)->set_value( new_value );
}

/* Advance counter by one tick                                               */
externC void cyg_counter_tick(cyg_handle_t counter)
{
    ((Cyg_Counter *)counter)->tick(); 
}

/* Advance counter by multiple ticks                                         */
externC void cyg_counter_multi_tick(cyg_handle_t counter, cyg_tick_count_t ticks)
{
    ((Cyg_Counter *)counter)->tick(ticks); 
}

/* Create a clock object                */
externC void cyg_clock_create(
    cyg_resolution_t    resolution,     /* Initial resolution                */
    cyg_handle_t        *handle,        /* Returned clock handle             */
    cyg_clock           *clock          /* put clock here                    */
)
{
    CYG_ASSERT_SIZES( cyg_clock, Cyg_Clock );

    Cyg_Clock::cyg_resolution res;

    res.dividend = resolution.dividend;
    res.divisor  = resolution.divisor;

    Cyg_Clock *t = new((void *)clock) Cyg_Clock ( res );
    t=t;

    CYG_CHECK_DATA_PTR( handle, "Bad handle pointer" );
    *handle = (cyg_handle_t)clock;
}

externC void cyg_clock_delete(cyg_handle_t clock)
{
    ((Cyg_Clock *)clock)->~Cyg_Clock();
}

/* convert a clock handle to a counter handle so we can use the              */
/* counter API on it.                                                        */
externC void cyg_clock_to_counter(
    cyg_handle_t        clock,
    cyg_handle_t        *counter
)
{
    CYG_CHECK_DATA_PTR( counter, "Bad counter handle pointer" );
    *counter = (cyg_handle_t)(Cyg_Counter *)clock;
}

externC void cyg_clock_set_resolution(
    cyg_handle_t        clock,
    cyg_resolution_t    resolution      /* New resolution                    */
)
{
    Cyg_Clock::cyg_resolution res;

    res.dividend = resolution.dividend;
    res.divisor  = resolution.divisor;

    ((Cyg_Clock *)clock)->set_resolution( res );
}

externC cyg_resolution_t cyg_clock_get_resolution(cyg_handle_t clock)
{
    Cyg_Clock::cyg_resolution res =
        ((Cyg_Clock *)clock)->get_resolution();    

    cyg_resolution_t resolution;

    resolution.dividend = res.dividend;
    resolution.divisor  = res.divisor;

    return resolution;
}

#ifdef CYGVAR_KERNEL_COUNTERS_CLOCK
externC cyg_handle_t cyg_real_time_clock(void)
{
    return (cyg_handle_t)Cyg_Clock::real_time_clock;
}

externC cyg_tick_count_t cyg_current_time(void)
{
    return Cyg_Clock::real_time_clock->current_value();
}
#endif

externC void cyg_alarm_create(
    cyg_handle_t        counter,        /* Attached to this counter          */
    cyg_alarm_t         *alarmfn,       /* Call-back function                */
    cyg_addrword_t      data,           /* Call-back data                    */
    cyg_handle_t        *handle,        /* Returned alarm object             */
    cyg_alarm           *alarm          /* put alarm here                    */
)
{
    CYG_ASSERT_SIZES( cyg_alarm, Cyg_Alarm );

    Cyg_Alarm *t = new((void *)alarm) Cyg_Alarm (
        (Cyg_Counter *)counter,
        (cyg_alarm_fn *)alarmfn,
        (CYG_ADDRWORD)data
    );
    t=t;

    CYG_CHECK_DATA_PTR( handle, "Bad handle pointer" );
    *handle = (cyg_handle_t)alarm;
}

/* Disable alarm, detach from counter and invalidate handles                 */
externC void cyg_alarm_delete( cyg_handle_t alarm)
{
    ((Cyg_Alarm *)alarm)->~Cyg_Alarm();
}

externC void cyg_alarm_initialize(
    cyg_handle_t        alarm,
    cyg_tick_count_t    trigger,        /* Absolute trigger time             */
    cyg_tick_count_t    interval        /* Relative retrigger interval       */
)
{
    ((Cyg_Alarm *)alarm)->initialize(
        (cyg_tick_count)trigger,
        (cyg_tick_count)interval);
}

externC void cyg_alarm_get_times(
    cyg_handle_t        alarm,
    cyg_tick_count_t    *trigger,       /* Next trigger time                 */
    cyg_tick_count_t    *interval       /* Current interval                  */
)
{
    ((Cyg_Alarm *)alarm)->get_times(
        (cyg_tick_count*)trigger,
        (cyg_tick_count*)interval);
}

externC void cyg_alarm_enable( cyg_handle_t alarm )
{
    ((Cyg_Alarm *)alarm)->enable();
}

externC void cyg_alarm_disable( cyg_handle_t alarm )
{
    ((Cyg_Alarm *)alarm)->disable();
}

/*---------------------------------------------------------------------------*/
/* Mail boxes                                                                */

externC void cyg_mbox_create(
    cyg_handle_t        *handle,
    cyg_mbox            *mbox
)
{
    CYG_ASSERT_SIZES( cyg_mbox, Cyg_Mbox );
    
    Cyg_Mbox *t = new((void *)mbox) Cyg_Mbox();