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 /** ThreadX Component */
17 /** */
18 /** Initialize */
19 /** */
20 /**************************************************************************/
21 /**************************************************************************/
22
23 #define TX_SOURCE_CODE
24
25
26 /* Include necessary system files. */
27
28 #include "tx_api.h"
29 #include "tx_initialize.h"
30 #include "tx_thread.h"
31
32
33 /**************************************************************************/
34 /* */
35 /* FUNCTION RELEASE */
36 /* */
37 /* _tx_initialize_kernel_setup PORTABLE C */
38 /* 6.1 */
39 /* AUTHOR */
40 /* */
41 /* William E. Lamie, Microsoft Corporation */
42 /* */
43 /* DESCRIPTION */
44 /* */
45 /* This function is called by the compiler's startup code to make */
46 /* ThreadX objects accessible to the compiler's library. If this */
47 /* function is not called by the compiler, all ThreadX initialization */
48 /* takes place from the kernel enter function defined previously. */
49 /* */
50 /* INPUT */
51 /* */
52 /* None */
53 /* */
54 /* OUTPUT */
55 /* */
56 /* None */
57 /* */
58 /* CALLS */
59 /* */
60 /* _tx_initialize_low_level Low-level initialization */
61 /* _tx_initialize_high_level High-level initialization */
62 /* */
63 /* CALLED BY */
64 /* */
65 /* startup code Compiler startup code */
66 /* */
67 /* RELEASE HISTORY */
68 /* */
69 /* DATE NAME DESCRIPTION */
70 /* */
71 /* 05-19-2020 William E. Lamie Initial Version 6.0 */
72 /* 09-30-2020 Yuxin Zhou Modified comment(s), */
73 /* resulting in version 6.1 */
74 /* */
75 /**************************************************************************/
_tx_initialize_kernel_setup(VOID)76 VOID _tx_initialize_kernel_setup(VOID)
77 {
78
79 /* Ensure that the system state variable is set to indicate
80 initialization is in progress. Note that this variable is
81 later used to represent interrupt nesting. */
82 _tx_thread_system_state = TX_INITIALIZE_IN_PROGRESS;
83
84 /* Call any port specific preprocessing. */
85 TX_PORT_SPECIFIC_PRE_INITIALIZATION
86
87 /* Invoke the low-level initialization to handle all processor specific
88 initialization issues. */
89 _tx_initialize_low_level();
90
91 /* Invoke the high-level initialization to exercise all of the
92 ThreadX components and the application's initialization
93 function. */
94 _tx_initialize_high_level();
95
96 /* Call any port specific post-processing. */
97 TX_PORT_SPECIFIC_POST_INITIALIZATION
98
99 /* Set the system state to indicate initialization is almost done. */
100 _tx_thread_system_state = TX_INITIALIZE_ALMOST_DONE;
101 }
102
103
