drivers/usb/acpi: Add a driver for generating USB ACPI

Add a support for generating USB port descriptors for ACPI based
on their definition by the board in devicetree.cb.  This will
generate a _UPC and _PLD for each port, using a generic _PLD by
default.  The _PLD can also be customized for more accurate
descriptions if necessary.

This sample devictree.cb shows a USB 2.0 type-A port behind a root
hub connected to an xHCI controller:

device pci 14.0 on
  chip drivers/usb/acpi
    register "desc" = ""Root Hub""
    register "type" = "UPC_TYPE_HUB"
    device usb 0.0 on
      chip drivers/usb/acpi
        register "desc" = ""USB 2.0 Type-A""
        register "type" = "UPC_TYPE_A"
        device usb 2.0 on end
      end
    end
  end
end

It will generate the following ACPI code in the SSDT:

Scope (\_SB.PCI0.XHCI.RHUB.HS01)
{
  Name (_DDN, "USB 2.0 Type-A")
  Name (_UPC, Package (0x04)
  {
    0xFF,
    0x00,
    Zero,
    Zero
  })
  Name (_PLD, ToPLD (
    PLD_Revision           = 0x2,
    PLD_IgnoreColor        = 0x1,
    PLD_Red                = 0x0,
    PLD_Green              = 0x0,
    PLD_Blue               = 0x0,
    PLD_Width              = 0x0,
    PLD_Height             = 0x0,
    PLD_UserVisible        = 0x1,
    PLD_Dock               = 0x0,
    PLD_Lid                = 0x0,
    PLD_Panel              = "UNKNOWN",
    PLD_VerticalPosition   = "CENTER",
    PLD_HorizontalPosition = "CENTER",
    PLD_Shape              = "RECTANGLE",
    PLD_GroupOrientation   = 0x0,
    PLD_GroupToken         = 0x0,
    PLD_GroupPosition      = 0x0,
    PLD_Bay                = 0x0,
    PLD_Ejectable          = 0x0,
    PLD_EjectRequired      = 0x0,
    PLD_CabinetNumber      = 0x0,
    PLD_CardCageNumber     = 0x0,
    PLD_Reference          = 0x0,
    PLD_Rotation           = 0x0,
    PLD_Order              = 0x0,
    PLD_VerticalOffset     = 0x0,
    PLD_HorizontalOffset   = 0x0)
  )
}

Change-Id: I7024390e407fda4b195211bd4755bb5ca53b2b37
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/26173
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions