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 #if !defined(UX_STANDALONE)
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _ux_utility_mutex_on PORTABLE C */
37 /* 6.1.11 */
38 /* AUTHOR */
39 /* */
40 /* Chaoqiong Xiao, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function gets system protection. */
45 /* */
46 /* INPUT */
47 /* */
48 /* Mutex */
49 /* */
50 /* OUTPUT */
51 /* */
52 /* None */
53 /* */
54 /* CALLS */
55 /* */
56 /* tx_mutex_get ThreadX mutex get */
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 /* used UX prefix to refer to */
69 /* TX symbols instead of using */
70 /* them directly, */
71 /* resulting in version 6.1 */
72 /* 04-25-2022 Chaoqiong Xiao Modified comment(s), */
73 /* off in standalone build, */
74 /* resulting in version 6.1.11 */
75 /* */
76 /**************************************************************************/
_ux_utility_mutex_on(UX_MUTEX * mutex)77 VOID _ux_utility_mutex_on(UX_MUTEX *mutex)
78 {
79
80 UINT status;
81
82 /* Call ThreadX to get system mutex. */
83 status = tx_mutex_get(mutex, TX_WAIT_FOREVER);
84
85 /* Check for status. */
86 if (status != UX_SUCCESS)
87 {
88
89 /* Error trap. */
90 _ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_UTILITY, status);
91 }
92
93 /* Return to caller. */
94 return;
95 }
96 #endif
97
