1 /***************************************************************************
2  * Copyright (c) 2024 Microsoft Corporation
3  *
4  * This program and the accompanying materials are made available under the
5  * terms of the MIT License which is available at
6  * https://opensource.org/licenses/MIT.
7  *
8  * SPDX-License-Identifier: MIT
9  **************************************************************************/
10 
11 
12 /**************************************************************************/
13 /**************************************************************************/
14 /**                                                                       */
15 /** USBX Component                                                        */
16 /**                                                                       */
17 /**   Utility                                                             */
18 /**                                                                       */
19 /**************************************************************************/
20 /**************************************************************************/
21 
22 
23 /* Include necessary system files.  */
24 
25 #define UX_SOURCE_CODE
26 
27 #include "ux_api.h"
28 
29 
30 /**************************************************************************/
31 /*                                                                        */
32 /*  FUNCTION                                               RELEASE        */
33 /*                                                                        */
34 /*    _ux_utility_memory_set                              PORTABLE C      */
35 /*                                                           6.1          */
36 /*  AUTHOR                                                                */
37 /*                                                                        */
38 /*    Chaoqiong Xiao, Microsoft Corporation                               */
39 /*                                                                        */
40 /*  DESCRIPTION                                                           */
41 /*                                                                        */
42 /*    This function sets a memory block with a specific value.            */
43 /*                                                                        */
44 /*  INPUT                                                                 */
45 /*                                                                        */
46 /*    destination                           Destination address           */
47 /*    value                                 8-bit value                   */
48 /*    length                                Size of memory to set         */
49 /*                                                                        */
50 /*  OUTPUT                                                                */
51 /*                                                                        */
52 /*    None                                                                */
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_memory_set(VOID * destination,UCHAR value,ULONG length)71 VOID  _ux_utility_memory_set(VOID *destination, UCHAR value, ULONG length)
72 {
73 
74 UCHAR *    work_ptr;
75 
76 
77     /* Setup the working pointer */
78     work_ptr =  (UCHAR *) destination;
79 
80     /* Loop to set the memory.  */
81     while(length--)
82     {
83 
84         /* Set a byte.  */
85         *work_ptr++ =  value;
86     }
87 
88     /* Return to caller.  */
89     return;
90 }
91 
92