clock.c File Reference

PXA255 clock specific using the System Timer. More...

#include <rtems.h>
#include <rtems/clockdrv.h>
#include <rtems/libio.h>
#include <stdlib.h>
#include <bsp.h>
#include <bspopts.h>
#include <bsp/irq.h>
#include <pxa255.h>
#include "../../../shared/dev/clock/clockimpl.h"

Macros
#define	Clock_driver_support_install_isr(_new)    BSP_install_rtems_irq_handler(&clock_isr_data)
#define	Clock_driver_support_at_tick(arg)
#define	CLOCK_DRIVER_USE_DUMMY_TIMECOUNTER

Functions
void	Clock_isr (rtems_irq_hdl_param arg)

Variables
rtems_irq_connect_data	clock_isr_data

Detailed Description

PXA255 clock specific using the System Timer.

RTEMS uses IRQ 26 as Clock Source

Macro Definition Documentation

Clock_driver_support_at_tick

#define Clock_driver_support_at_tick

(

arg

)

Value:

  do { \
    /* read the status to clear the int */ \
    XSCALE_OS_TIMER_TSR = 0x1; \
    \
    /*Add the match register*/ \
    XSCALE_OS_TIMER_MR0 = XSCALE_OS_TIMER_TCR + period_num; \
  } while (0)

Variable Documentation

clock_isr_data

rtems_irq_connect_data clock_isr_data

Initial value:

= {
  .name   = XSCALE_IRQ_OS_TIMER,
  .hdl    = Clock_isr,
  .handle = NULL,
  .on     = clock_isr_on,
  .off    = clock_isr_off,
  .isOn   = clock_isr_is_on,
}