#include <ddk.h> #include <linux/errno.h> #include <mutex.h> #include <pci.h> #include <syscall.h> #include "acpi.h" #include "acpi_bus.h" #define PREFIX "ACPI: " static int acpi_pci_unbind(struct acpi_device *device) { struct pci_dev *dev; dev = acpi_get_pci_dev(device->handle); if (!dev) goto out; // device_set_run_wake(&dev->dev, false); // pci_acpi_remove_pm_notifier(device); if (!dev->subordinate) goto out; // acpi_pci_irq_del_prt(dev->subordinate); device->ops.bind = NULL; device->ops.unbind = NULL; out: // pci_dev_put(dev); return 0; } static int acpi_pci_bind(struct acpi_device *device) { ACPI_STATUS status; ACPI_HANDLE handle; struct pci_bus *bus; struct pci_dev *dev; dev = acpi_get_pci_dev(device->handle); if (!dev) return 0; device->pci_dev = dev; dev->acpi_dev = device; dbgprintf("bind ACPI %s PCI_%x_%x\n", device->pnp.bus_id, dev->vendor, dev->device); // pci_acpi_add_pm_notifier(device, dev); // if (device->wakeup.flags.run_wake) // device_set_run_wake(&dev->dev, true); /* * Install the 'bind' function to facilitate callbacks for * children of the P2P bridge. */ if (dev->subordinate) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device %04x:%02x:%02x.%d is a PCI bridge\n", pci_domain_nr(dev->bus), dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn))); device->ops.bind = acpi_pci_bind; device->ops.unbind = acpi_pci_unbind; } /* * Evaluate and parse _PRT, if exists. This code allows parsing of * _PRT objects within the scope of non-bridge devices. Note that * _PRTs within the scope of a PCI bridge assume the bridge's * subordinate bus number. * * TBD: Can _PRTs exist within the scope of non-bridge PCI devices? */ status = AcpiGetHandle(device->handle, METHOD_NAME__PRT, &handle); if (ACPI_FAILURE(status)) goto out; if (dev->subordinate) bus = dev->subordinate; else bus = dev->bus; acpi_pci_irq_add_prt(device->handle, bus); out: // pci_dev_put(dev); return 0; } int acpi_pci_bind_root(struct acpi_device *device) { device->ops.bind = acpi_pci_bind; device->ops.unbind = acpi_pci_unbind; return 0; }