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_create PORTABLE C */
37 /* 6.1.11 */
38 /* AUTHOR */
39 /* */
40 /* Chaoqiong Xiao, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function creates a protection mutex. */
45 /* */
46 /* INPUT */
47 /* */
48 /* mutex Pointer to mutex */
49 /* mutex_name Name of mutex */
50 /* */
51 /* OUTPUT */
52 /* */
53 /* Completion Status */
54 /* */
55 /* CALLS */
56 /* */
57 /* tx_mutex_create ThreadX mutex create */
58 /* */
59 /* CALLED BY */
60 /* */
61 /* USBX Components */
62 /* */
63 /* RELEASE HISTORY */
64 /* */
65 /* DATE NAME DESCRIPTION */
66 /* */
67 /* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */
68 /* 09-30-2020 Chaoqiong Xiao Modified comment(s), */
69 /* used UX prefix to refer to */
70 /* TX symbols instead of using */
71 /* them directly, */
72 /* resulting in version 6.1 */
73 /* 04-25-2022 Chaoqiong Xiao Modified comment(s), */
74 /* off in standalone build, */
75 /* resulting in version 6.1.11 */
76 /* */
77 /**************************************************************************/
_ux_utility_mutex_create(UX_MUTEX * mutex,CHAR * mutex_name)78 UINT _ux_utility_mutex_create(UX_MUTEX *mutex, CHAR *mutex_name)
79 {
80
81 UINT status;
82
83
84 /* Call ThreadX to create the Mutex object. */
85 status = tx_mutex_create(mutex, (CHAR *) mutex_name, TX_NO_INHERIT);
86
87 /* Check for status. */
88 if (status != UX_SUCCESS)
89 {
90
91 /* Error trap. */
92 _ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_UTILITY, status);
93
94 /* If trace is enabled, insert this event into the trace buffer. */
95 UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_MUTEX_ERROR, mutex, 0, 0, UX_TRACE_ERRORS, 0, 0)
96
97 }
98 /* Return completion status. */
99 return(status);
100 }
101 #endif
102
