/**
* This function will initialize hardware interrupt
*/
void rt_hw_interrupt_init(void)
{
rt_int32_t i;
register rt_uint32_t idx;
rt_uint32_t *priority = at91sam9260_default_irq_priority;
at91_extern_irq = (1 << AT91SAM9260_ID_IRQ0) | (1 << AT91SAM9260_ID_IRQ1)
| (1 << AT91SAM9260_ID_IRQ2);
/* Initialize the AIC interrupt controller */
at91_aic_init(priority);
/* init exceptions table */
for(idx=0; idx < MAX_HANDLERS; idx++)
{
rt_snprintf(irq_desc[idx].name, RT_NAME_MAX - 1, "default");
irq_desc[idx].handler = (rt_isr_handler_t)rt_hw_interrupt_handle;
irq_desc[idx].param = RT_NULL;
irq_desc[idx].counter = 0;
}
at91_gpio_irq_init();
/* init interrupt nest, and context in thread sp */
rt_interrupt_nest = 0;
rt_interrupt_from_thread = 0;
rt_interrupt_to_thread = 0;
rt_thread_switch_interrupt_flag = 0;
}
void __init at91x40_init_interrupts(unsigned int priority[NR_AIC_IRQS])
{
if (!priority)
priority = at91x40_default_irq_priority;
at91_aic_init(priority);
}
void __init at91x40_init_interrupts(unsigned int priority[NR_AIC_IRQS])
{
u32 extern_irq = (1 << AT91X40_ID_IRQ0) | (1 << AT91X40_ID_IRQ1)
| (1 << AT91X40_ID_IRQ2);
if (!priority)
priority = at91x40_default_irq_priority;
at91_aic_init(priority, extern_irq);
}
void __init at91sam9261_init_interrupts(unsigned int priority[NR_AIC_IRQS])
{
if (!priority)
priority = at91sam9261_default_irq_priority;
/* Initialize the AIC interrupt controller */
at91_aic_init(priority);
/* Enable GPIO interrupts */
at91_gpio_irq_setup();
}
void __init at91sam9263_init_interrupts(unsigned int priority[NR_AIC_IRQS])
{
if (!priority)
priority = at91sam9263_default_irq_priority;
at91_aic_init(priority);
at91_gpio_irq_setup();
}
int __INIT__ at91sam926x_interrupt_init(void)
{
__u32 i, j;
__u32 irq;
at91_aic_init();
for (i = 0; i < 3; i++) {
for (j = 0; j < 32; j++) {
irq = 32 + ((i << 5) | j);
irq_assoc_intctl(irq, &at91sam926x_gpio_intctrl);
irq_set_handler(irq, irq_handle_simple, 0);
}
irq_set_handler(PIO_IRQ_OFFSET + i, at91sam926x_gpio_irqparse, 1);
}
irq_enable(); // fixme
return 0;
}
/**
* This function will initialize hardware interrupt
*/
void rt_hw_interrupt_init(void)
{
rt_int32_t i;
register rt_uint32_t idx;
rt_uint32_t *priority = at91sam9260_default_irq_priority;
at91_extern_irq = (1 << AT91SAM9260_ID_IRQ0) | (1 << AT91SAM9260_ID_IRQ1)
| (1 << AT91SAM9260_ID_IRQ2);
/* Initialize the AIC interrupt controller */
at91_aic_init(priority);
/* init exceptions table */
for(idx=0; idx < MAX_HANDLERS; idx++)
{
isr_table[idx] = (rt_isr_handler_t)rt_hw_interrupt_handle;
}
/* init interrupt nest, and context in thread sp */
rt_interrupt_nest = 0;
rt_interrupt_from_thread = 0;
rt_interrupt_to_thread = 0;
rt_thread_switch_interrput_flag = 0;
}
