* Copyright 2010, Clemens Zeidler, haiku@clemens-zeidler.de.
* Distributed under the terms of the MIT License.
*/
#ifndef IRQ_ROUTING_TABLE_H
#define IRQ_ROUTING_TABLE_H
#include <ACPI.h>
#include "util/Vector.h"
struct irq_routing_entry {
uint64 device_address;
uint8 pin;
acpi_handle source;
uint32 source_index;
bool needs_configuration;
uint8 pci_bus;
uint8 pci_device;
uint32 pci_function_mask;
uint8 irq;
uint8 bios_irq;
uint8 polarity;
uint8 trigger_mode;
};
typedef Vector<irq_routing_entry> IRQRoutingTable;
struct irq_descriptor {
irq_descriptor();
uint8 irq;
bool shareable;
uint8 polarity;
uint8 trigger_mode;
};
typedef Vector<irq_descriptor> irq_descriptor_list;
struct pci_address {
uint8 segment;
uint8 bus;
uint8 device;
uint8 function;
};
struct link_device {
acpi_handle handle;
irq_descriptor current_irq;
Vector<irq_descriptor> possible_irqs;
Vector<irq_routing_entry*> used_by;
};
typedef bool (*interrupt_available_check_function)(int32 globalSystemInterrupt);
void print_irq_descriptor(const irq_descriptor& descriptor);
void print_irq_routing_table(const IRQRoutingTable& table);
status_t prepare_irq_routing(acpi_module_info* acpi, IRQRoutingTable& table,
interrupt_available_check_function checkFunction);
status_t enable_irq_routing(acpi_module_info* acpi,
IRQRoutingTable& routingTable);
status_t read_current_irq(acpi_module_info* acpi, acpi_handle device,
irq_descriptor& descriptor);
status_t read_possible_irqs(acpi_module_info* acpi, acpi_handle device,
irq_descriptor_list& descriptorList);
status_t set_current_irq(acpi_module_info* acpi, acpi_handle device,
const irq_descriptor& descriptor);
#endif
