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 /** Host Stack */
19 /** */
20 /**************************************************************************/
21 /**************************************************************************/
22
23
24 /* Include necessary system files. */
25
26 #define UX_SOURCE_CODE
27
28 #include "ux_api.h"
29 #include "ux_host_stack.h"
30
31
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _ux_host_stack_interface_instance_create PORTABLE C */
37 /* 6.1.12 */
38 /* AUTHOR */
39 /* */
40 /* Chaoqiong Xiao, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function will create an interface instance. It creates each */
45 /* endpoint associated with the interface. */
46 /* */
47 /* INPUT */
48 /* */
49 /* interface Pointer to interface */
50 /* */
51 /* OUTPUT */
52 /* */
53 /* Completion Status */
54 /* */
55 /* CALLS */
56 /* */
57 /* _ux_host_stack_endpoint_instance_create Create instance endpoint */
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 /* resulting in version 6.1 */
70 /* 07-29-2022 Chaoqiong Xiao Modified comment(s), */
71 /* fixed parameter/variable */
72 /* names conflict C++ keyword, */
73 /* resulting in version 6.1.12 */
74 /* */
75 /**************************************************************************/
_ux_host_stack_interface_instance_create(UX_INTERFACE * interface_ptr)76 UINT _ux_host_stack_interface_instance_create(UX_INTERFACE *interface_ptr)
77 {
78
79 UX_ENDPOINT *endpoint;
80 UINT status;
81
82 /* If trace is enabled, insert this event into the trace buffer. */
83 UX_TRACE_IN_LINE_INSERT(UX_TRACE_HOST_STACK_INTERFACE_INSTANCE_CREATE, interface_ptr, 0, 0, 0, UX_TRACE_HOST_STACK_EVENTS, 0, 0)
84
85 /* Obtain the first endpoint for this alternate setting. */
86 endpoint = interface_ptr -> ux_interface_first_endpoint;
87
88 /* Loop to create each endpoint. */
89 while (endpoint != UX_NULL)
90 {
91
92 /* Create an endpoint for the instance. */
93 status = _ux_host_stack_endpoint_instance_create(endpoint);
94
95 /* Check status, the controller may have refused the endpoint creation. */
96 if (status != UX_SUCCESS)
97
98 /* An error occurred at the controller level. */
99 return(status);
100
101 /* Move to next endpoint. */
102 endpoint = endpoint -> ux_endpoint_next_endpoint;
103 }
104
105 /* If trace is enabled, register this object. */
106 UX_TRACE_OBJECT_REGISTER(UX_TRACE_HOST_OBJECT_TYPE_INTERFACE, interface_ptr, 0, 0, 0);
107
108 /* Return completion status. */
109 return(UX_SUCCESS);
110 }
111
112
