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#include <rtthread.h>
#include <rthw.h>
#include <platform.h>
#include <encoding.h>
#include "interrupt.h"
extern struct rt_irq_desc irq_desc[];
extern rt_uint32_t rt_hw_interrupt_get_active(rt_uint32_t fiq_irq);
void rt_hw_trap_irq()
{
rt_isr_handler_t isr_func;
rt_uint32_t irq;
void *param;
/* get irq number */
irq = rt_hw_interrupt_get_active(0);
/* get interrupt service routine */
isr_func = irq_desc[irq].handler;
param = irq_desc[irq].param;
/* turn to interrupt service routine */
isr_func(irq, param);
rt_hw_interrupt_ack(0, irq);
#ifdef RT_USING_INTERRUPT_INFO
irq_desc[irq].counter ++;
#endif
}
void handle_m_ext_interrupt()
{
}
void rt_systick_handler(void)
{
clear_csr(mie, MIP_MTIP);
// Reset the timer for 3s in the future.
// This also clears the existing timer interrupt.
volatile uint64_t * mtime = (uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIME);
volatile uint64_t * mtimecmp = (uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
uint64_t now = *mtime;
uint64_t then = now + 2 * RTC_FREQ/RT_TICK_PER_SECOND;
*mtimecmp = then;
rt_tick_increase();
// read the current value of the LEDS and invert them.
/*
GPIO_REG(GPIO_OUTPUT_VAL) ^= ((0x1 << RED_LED_OFFSET) |
(0x1 << GREEN_LED_OFFSET) |
(0x1 << BLUE_LED_OFFSET));
*/
// Re-enable the timer interrupt.
set_csr(mie, MIP_MTIP);
}
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