1 /**************************************************************************/
2 /* */
3 /* Copyright (c) Microsoft Corporation. All rights reserved. */
4 /* */
5 /* This software is licensed under the Microsoft Software License */
6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */
7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
8 /* and in the root directory of this software. */
9 /* */
10 /**************************************************************************/
11
12
13 /**************************************************************************/
14 /**************************************************************************/
15 /** */
16 /** USBX Component */
17 /** */
18 /** Utility */
19 /** */
20 /**************************************************************************/
21 /**************************************************************************/
22
23
24 /* Include necessary system files. */
25
26 #define UX_SOURCE_CODE
27
28 #include "ux_api.h"
29
30
31 /**************************************************************************/
32 /* */
33 /* FUNCTION RELEASE */
34 /* */
35 /* _ux_utility_virtual_address PORTABLE C */
36 /* 6.1 */
37 /* AUTHOR */
38 /* */
39 /* Chaoqiong Xiao, Microsoft Corporation */
40 /* */
41 /* DESCRIPTION */
42 /* */
43 /* This function returns a virtual address given the supplied */
44 /* physical address. */
45 /* */
46 /* INPUT */
47 /* */
48 /* physical_address Virtual address */
49 /* */
50 /* OUTPUT */
51 /* */
52 /* virtual_address Physical address */
53 /* */
54 /* CALLS */
55 /* */
56 /* None */
57 /* */
58 /* CALLED BY */
59 /* */
60 /* USBX Components */
61 /* */
62 /* RELEASE HISTORY */
63 /* */
64 /* DATE NAME DESCRIPTION */
65 /* */
66 /* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */
67 /* 09-30-2020 Chaoqiong Xiao Modified comment(s), */
68 /* resulting in version 6.1 */
69 /* */
70 /**************************************************************************/
_ux_utility_virtual_address(VOID * physical_address)71 VOID *_ux_utility_virtual_address(VOID *physical_address)
72 {
73
74 VOID *virtual_address;
75
76 /* Any code to translate the physical address into a virtual address
77 will be below. If there is no translation, the physical address=
78 the virtual address. */
79
80 virtual_address = physical_address;
81 return(virtual_address);
82 }
83
84
