Commit | Line | Data |
---|---|---|
43e543bc EL |
1 | /** @file\r |
2 | This file implements the entrypoint and unload function for I2C DXE module.\r | |
3 | \r | |
4 | Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>\r | |
9d510e61 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
43e543bc EL |
6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include "I2cDxe.h"\r | |
10 | \r | |
11 | /**\r | |
12 | The user Entry Point for I2C module. The user code starts with this function.\r | |
13 | \r | |
14 | @param[in] ImageHandle The firmware allocated handle for the EFI image.\r | |
15 | @param[in] SystemTable A pointer to the EFI System Table.\r | |
16 | \r | |
17 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
18 | @retval other Some error occurs when executing this entry point.\r | |
19 | \r | |
20 | **/\r | |
21 | EFI_STATUS\r | |
22 | EFIAPI\r | |
23 | InitializeI2c(\r | |
24 | IN EFI_HANDLE ImageHandle,\r | |
25 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
26 | )\r | |
27 | {\r | |
28 | EFI_STATUS Status;\r | |
29 | \r | |
30 | //\r | |
31 | // Install driver model protocol(s).\r | |
32 | //\r | |
33 | Status = InitializeI2cHost ( ImageHandle, SystemTable );\r | |
34 | if ( !EFI_ERROR ( Status ))\r | |
35 | {\r | |
36 | Status = InitializeI2cBus ( ImageHandle, SystemTable );\r | |
37 | }\r | |
38 | return Status;\r | |
39 | }\r | |
40 | \r | |
41 | /**\r | |
42 | This is the unload handle for I2C module.\r | |
43 | \r | |
44 | Disconnect the driver specified by ImageHandle from all the devices in the handle database.\r | |
45 | Uninstall all the protocols installed in the driver entry point.\r | |
46 | \r | |
47 | @param[in] ImageHandle The drivers' driver image.\r | |
48 | \r | |
49 | @retval EFI_SUCCESS The image is unloaded.\r | |
50 | @retval Others Failed to unload the image.\r | |
51 | \r | |
52 | **/\r | |
53 | EFI_STATUS\r | |
54 | EFIAPI\r | |
55 | I2cUnload (\r | |
56 | IN EFI_HANDLE ImageHandle\r | |
57 | )\r | |
58 | {\r | |
59 | EFI_STATUS Status;\r | |
60 | \r | |
61 | //\r | |
62 | // Disconnect the drivers\r | |
63 | //\r | |
64 | Status = I2cBusUnload ( ImageHandle );\r | |
65 | if ( !EFI_ERROR ( Status )) {\r | |
66 | Status = I2cHostUnload ( ImageHandle );\r | |
67 | }\r | |
68 | return Status;\r | |
69 | }\r |