int str71x_xticonfig(int irq, bool rising)
{
uint8_t regval;
int bit;
int ndx;
int ret = -EINVAL;
/* Configure one of the 16 lines as an interrupt source */
if (irq >= STR71X_IRQ_FIRSTXTI && irq <= NR_IRQS)
{
/* Make sure that the interrupt is disabled */
str71x_disable_xtiirq(irq);
/* Decide if we use the lower or upper regiser */
bit = irq - STR71X_IRQ_FIRSTXTI;
ndx = 0;
if (bit > 7)
{
/* Select the high register */
bit -= 8;
ndx = 1;
}
/* Set the rising or trailing edge */
regval = getreg8(g_xtiregs[ndx].tr);
if (rising)
{
regval |= (1 << bit);
}
else
{
regval &= ~(1 << bit);
}
putreg8(regval, g_xtiregs[ndx].tr);
/* Return success */
ret = OK;
}
return ret;
}
void up_disable_irq(int irq)
{
uint32_t reg32;
if ((unsigned)irq < STR71X_NBASEIRQS)
{
/* Mask the IRQ by clearing the associated bit in the IER register */
reg32 = getreg32(STR71X_EIC_IER);
reg32 &= ~(1 << irq);
putreg32(reg32, STR71X_EIC_IER);
}
#ifdef CONFIG_STR71X_XTI
else if ((unsigned)irq < NR_IRQS)
{
str71x_disable_xtiirq(irq);
}
#endif /* CONFIG_STR71X_XTI */
}
