| 1 | /** @file
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| 2 | Deal with devices that just exist in memory space.
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| 3 |
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| 4 | To follow the EFI driver model you need a root handle to start with. An
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| 5 | EFI driver will have a driver binding protocol (Supported, Start, Stop)
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| 6 | that is used to layer on top of a handle via a gBS->ConnectController.
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| 7 | The first handle has to just be in the system to make that work. For
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| 8 | PCI it is a PCI Root Bridge IO protocol that provides the root.
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| 9 |
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| 10 | On an embedded system with MMIO device we need a handle to just
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| 11 | show up. That handle will have this protocol and a device path
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| 12 | protocol on it.
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| 13 |
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| 14 | For an ethernet device the device path must contain a MAC address device path
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| 15 | node.
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| 16 |
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| 17 | Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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| 18 |
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| 19 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 20 |
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| 21 | **/
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| 22 |
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| 23 | #ifndef __EMBEDDED_DEVICE_PROTOCOL_H__
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| 24 | #define __EMBEDDED_DEVICE_PROTOCOL_H__
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| 25 |
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| 26 | //
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| 27 | // Protocol GUID
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| 28 | //
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| 29 | // BF4B9D10-13EC-43dd-8880-E90B718F27DE
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| 30 |
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| 31 | #define EMBEDDED_DEVICE_PROTOCOL_GUID \
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| 32 | { 0xbf4b9d10, 0x13ec, 0x43dd, { 0x88, 0x80, 0xe9, 0xb, 0x71, 0x8f, 0x27, 0xde } }
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| 33 |
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| 34 | typedef struct {
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| 35 | UINT16 VendorId;
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| 36 | UINT16 DeviceId;
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| 37 | UINT16 RevisionId;
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| 38 | UINT16 SubsystemId;
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| 39 | UINT16 SubsystemVendorId;
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| 40 | UINT8 ClassCode[3];
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| 41 | UINT8 HeaderSize;
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| 42 | UINTN BaseAddress;
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| 43 | } EMBEDDED_DEVICE_PROTOCOL;
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| 44 |
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| 45 | extern EFI_GUID gEmbeddedDeviceGuid;
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| 46 |
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| 47 | #endif
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