projects / mirror_edk2.git / blame
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|---|---|---|
| 2ef2b01e A |
1 | /** @file\r |
| 2 | Deal with devices that just exist in memory space.\r | |
| 3 | \r | |
| 4 | To follow the EFI driver model you need a root handle to start with. An\r | |
| 5 | EFI driver will have a driver binding protocol (Supported, Start, Stop) \r | |
| 6 | that is used to layer on top of a handle via a gBS->ConnectController. \r | |
| 7 | The first handle has to just be in the system to make that work. For\r | |
| 8 | PCI it is a PCI Root Bridge IO protocol that provides the root. \r | |
| 9 | \r | |
| 10 | On an embedded system with MMIO device we need a handle to just \r | |
| 11 | show up. That handle will have this protocol and a device path \r | |
| 12 | protocol on it. \r | |
| 13 | \r | |
| 14 | For an ethernet device the device path must contain a MAC address device path\r | |
| 15 | node.\r | |
| 16 | \r | |
| 17 | Copyright (c) 2008-2009 Apple Inc. All rights reserved.<BR>\r | |
| 18 | \r | |
| 19 | All rights reserved. This program and the accompanying materials\r | |
| 20 | are licensed and made available under the terms and conditions of the BSD License\r | |
| 21 | which accompanies this distribution. The full text of the license may be found at\r | |
| 22 | http://opensource.org/licenses/bsd-license.php\r | |
| 23 | \r | |
| 24 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 25 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 26 | \r | |
| 27 | **/\r | |
| 28 | \r | |
| 29 | #ifndef __EMBEDDED_DEVICE_PROTOCOL_H__\r | |
| 30 | #define __EMBEDDED_DEVICE_PROTOCOL_H__\r | |
| 31 | \r | |
| 32 | \r | |
| 33 | //\r | |
| 34 | // Protocol GUID\r | |
| 35 | //\r | |
| 36 | // BF4B9D10-13EC-43dd-8880-E90B718F27DE\r | |
| 37 | \r | |
| 38 | #define EMBEDDED_DEVICE_PROTOCOL_GUID \\r | |
| 39 | { 0xbf4b9d10, 0x13ec, 0x43dd, { 0x88, 0x80, 0xe9, 0xb, 0x71, 0x8f, 0x27, 0xde } }\r | |
| 40 | \r | |
| 41 | \r | |
| 42 | \r | |
| 43 | typedef struct {\r | |
| 44 | UINT16 VendorId;\r | |
| 45 | UINT16 DeviceId;\r | |
| 46 | UINT16 RevisionId;\r | |
| 47 | UINT16 SubsystemId;\r | |
| 48 | UINT16 SubsystemVendorId;\r | |
| 49 | UINT8 ClassCode[3];\r | |
| 50 | UINT8 HeaderSize;\r | |
| 51 | UINTN BaseAddress;\r | |
| 52 | } EMBEDDED_DEVICE_PROTOCOL;\r | |
| 53 | \r | |
| 54 | extern EFI_GUID gEmbeddedDeviceGuid;\r | |
| 55 | \r | |
| 56 | #endif\r | |
| 57 | \r | |
| 58 | \r |