int
acpi_irq_to_vector (u32 gsi)
{
if (has_8259 && gsi < 16)
return isa_irq_to_vector(gsi);
return gsi_to_vector(gsi);
}
acpi_status
acpi_os_remove_interrupt_handler(u32 irq, OSD_HANDLER handler)
{
if (acpi_irq_handler) {
#ifdef CONFIG_IA64
irq = gsi_to_vector(irq);
#endif
free_irq(irq, acpi_irq);
acpi_irq_handler = NULL;
}
return AE_OK;
}
int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
{
int vector;
if (has_8259 && gsi < 16)
*irq = isa_irq_to_vector(gsi);
else {
vector = gsi_to_vector(gsi);
if (vector == -1)
return -1;
*irq = vector;
}
return 0;
}
acpi_status
acpi_os_install_interrupt_handler(u32 irq, OSD_HANDLER handler, void *context)
{
/*
* Ignore the irq from the core, and use the value in our copy of the
* FADT. It may not be the same if an interrupt source override exists
* for the SCI.
*/
irq = acpi_fadt.sci_int;
#ifdef CONFIG_IA64
irq = gsi_to_vector(irq);
#endif
acpi_irq_irq = irq;
acpi_irq_handler = handler;
acpi_irq_context = context;
if (request_irq(irq, acpi_irq, SA_SHIRQ, "acpi", acpi_irq)) {
printk(KERN_ERR PREFIX "SCI (IRQ%d) allocation failed\n", irq);
return AE_NOT_ACQUIRED;
}
return AE_OK;
}
