From 4721f43390ec732cb2ef82911da098779f4db0c4 Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Mon, 7 May 2018 15:24:10 -0700 Subject: 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 Reviewed-on: https://review.coreboot.org/26173 Reviewed-by: Aaron Durbin Reviewed-by: Furquan Shaikh Tested-by: build bot (Jenkins) --- src/drivers/usb/acpi/chip.h | 54 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 src/drivers/usb/acpi/chip.h (limited to 'src/drivers/usb/acpi/chip.h') diff --git a/src/drivers/usb/acpi/chip.h b/src/drivers/usb/acpi/chip.h new file mode 100644 index 0000000000..f3f629abff --- /dev/null +++ b/src/drivers/usb/acpi/chip.h @@ -0,0 +1,54 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 Google LLC + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __USB_ACPI_CHIP_H__ +#define __USB_ACPI_CHIP_H__ + +#include +#include + +struct drivers_usb_acpi_config { + const char *desc; + + /* + * Physical ports that are user visible + * + * UPC_TYPE_A + * UPC_TYPE_MINI_AB + * UPC_TYPE_EXPRESSCARD + * UPC_TYPE_USB3_A + * UPC_TYPE_USB3_B + * UPC_TYPE_USB3_MICRO_B + * UPC_TYPE_USB3_MICRO_AB + * UPC_TYPE_USB3_POWER_B + * UPC_TYPE_C_USB2_ONLY + * UPC_TYPE_C_USB2_SS_SWITCH + * UPC_TYPE_C_USB2_SS + * + * Non-visible ports or special devices + * + * UPC_TYPE_PROPRIETARY + * UPC_TYPE_INTERNAL + * UPC_TYPE_UNUSED + * UPC_TYPE_HUB + */ + enum acpi_upc_type type; + + /* Define a custom physical location for the port */ + bool use_custom_pld; + struct acpi_pld custom_pld; +}; + +#endif /* __USB_ACPI_CHIP_H__ */ -- cgit v1.2.3