forked from Imagelibrary/rtems
1eed6f8bfc
Pass the parameter of the clock interrupt handler to Clock_driver_support_at_tick() and Clock_driver_timecounter_tick(). This makes it possible to use the interrupt handler argument in clock drivers. Use the interrupt handler provided by Clock_driver_support_install_isr() to avoid local delarations of Clock_isr(). Update #4862.
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/*
|
|
* Clock device driver for Lattice Mico32 (lm32).
|
|
*/
|
|
|
|
/*
|
|
* The license and distribution terms for this file may be
|
|
* found in the file LICENSE in this distribution or at
|
|
* http://www.rtems.org/license/LICENSE.
|
|
*
|
|
* COPYRIGHT (c) Yann Sionneau <yann.sionneau@telecom-sudparis.eu> (GSoC 2010)
|
|
* Telecom SudParis
|
|
*/
|
|
|
|
#include <bsp.h>
|
|
#include <bsp/irq-generic.h>
|
|
#include "../include/system_conf.h"
|
|
#include "clock.h"
|
|
#include "bspopts.h"
|
|
|
|
#if ON_SIMULATOR
|
|
#define CLOCK_DRIVER_USE_FAST_IDLE 1
|
|
#endif
|
|
|
|
#define Clock_driver_support_at_tick(arg) \
|
|
do { \
|
|
lm32_interrupt_ack(1 << MM_IRQ_TIMER0); \
|
|
} while (0)
|
|
|
|
#define Clock_driver_support_install_isr(_new ) \
|
|
do { \
|
|
rtems_isr_entry _old; \
|
|
rtems_interrupt_catch(_new, MM_IRQ_TIMER0, &_old); \
|
|
} while (0)
|
|
|
|
static void Clock_driver_support_initialize_hardware(void)
|
|
{
|
|
MM_WRITE(MM_TIMER0_COMPARE,
|
|
(MM_READ(MM_FREQUENCY)/(1000000/rtems_configuration_get_microseconds_per_tick())));
|
|
MM_WRITE(MM_TIMER0_COUNTER, 0);
|
|
MM_WRITE(MM_TIMER0_CONTROL, TIMER_ENABLE | TIMER_AUTORESTART);
|
|
bsp_interrupt_vector_enable(MM_IRQ_TIMER0);
|
|
}
|
|
|
|
#define CLOCK_DRIVER_USE_DUMMY_TIMECOUNTER
|
|
|
|
#include "../../../shared/dev/clock/clockimpl.h"
|