| 0,0 → 1,98 |
|---|
| |
| #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; |
| |
| // 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; |
| } |
| |