clockdrv.c File Reference

#include <rtems.h>
#include <bsp.h>
#include <bsp/irq.h>
#include <rtems/bspIo.h>
#include "../../../shared/dev/clock/clockimpl.h"

Macros
#define	CLOCK_VECTOR   AU1X00_IRQ_TOY_MATCH2
#define	Clock_driver_support_at_tick(arg)
#define	Clock_driver_support_install_isr(_new)
#define	Clock_driver_support_initialize_hardware()
#define	CLOCK_DRIVER_USE_DUMMY_TIMECOUNTER

Functions
void	au1x00_clock_init (void)

Variables
uint32_t	tick_interval
uint32_t	last_match

Detailed Description

Instantiate the clock driver shell.

This uses the TOY (Time of Year) timer to implement the clock.

Macro Definition Documentation

Clock_driver_support_at_tick

#define Clock_driver_support_at_tick

(

arg

)

Value:

  do { \
    while (AU1X00_SYS_CNTCTRL(AU1X00_SYS_ADDR) & AU1X00_SYS_CNTCTRL_TM0); \
    last_match = AU1X00_SYS_TOYREAD(AU1X00_SYS_ADDR); \
    AU1X00_SYS_TOYMATCH2(AU1X00_SYS_ADDR) = last_match + tick_interval; \
    au_sync(); \
  } while(0)

Clock_driver_support_initialize_hardware

#define Clock_driver_support_initialize_hardware

(

void

)

Value:

  do {                                                  \
     au1x00_clock_init(); \
  } while(0)

Clock_driver_support_install_isr

#define Clock_driver_support_install_isr

(

_new

)

Value:

  do { \
    rtems_interrupt_handler_install( \
      CLOCK_VECTOR, \
      "clock", \
      0, \
      _new, \
      NULL \
    ); \
    AU1X00_IC_MASKCLR(AU1X00_IC0_ADDR) = AU1X00_IC_IRQ_TOY_MATCH2; \
    AU1X00_IC_SRCSET(AU1X00_IC0_ADDR) = AU1X00_IC_IRQ_TOY_MATCH2; \
    AU1X00_IC_CFG0SET(AU1X00_IC0_ADDR) = AU1X00_IC_IRQ_TOY_MATCH2; \
    AU1X00_IC_CFG1CLR(AU1X00_IC0_ADDR) = AU1X00_IC_IRQ_TOY_MATCH2; \
    AU1X00_IC_CFG2CLR(AU1X00_IC0_ADDR) = AU1X00_IC_IRQ_TOY_MATCH2; \
    AU1X00_IC_ASSIGNSET(AU1X00_IC0_ADDR) = AU1X00_IC_IRQ_TOY_MATCH2; \
  } while(0)