1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
* Copyright (c) 2026-present Eclipse ThreadX contributors
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** USBX Component */
/** */
/** Host Stack */
/** */
/**************************************************************************/
/**************************************************************************/
/* Include necessary system files. */
#define UX_SOURCE_CODE
#include "ux_api.h"
#include "ux_host_stack.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_host_stack_interface_instance_create PORTABLE C */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function will create an interface instance. It creates each */
/* endpoint associated with the interface. */
/* */
/* INPUT */
/* */
/* interface Pointer to interface */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_host_stack_endpoint_instance_create Create instance endpoint */
/* */
/* CALLED BY */
/* */
/* USBX Components */
/* */
/**************************************************************************/
UINT _ux_host_stack_interface_instance_create(UX_INTERFACE *interface_ptr)
{
UX_ENDPOINT *endpoint;
UINT status;
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_HOST_STACK_INTERFACE_INSTANCE_CREATE, interface_ptr, 0, 0, 0, UX_TRACE_HOST_STACK_EVENTS, 0, 0)
/* Obtain the first endpoint for this alternate setting. */
endpoint = interface_ptr -> ux_interface_first_endpoint;
/* Loop to create each endpoint. */
while (endpoint != UX_NULL)
{
/* Create an endpoint for the instance. */
status = _ux_host_stack_endpoint_instance_create(endpoint);
/* Check status, the controller may have refused the endpoint creation. */
if (status != UX_SUCCESS)
/* An error occurred at the controller level. */
return(status);
/* Move to next endpoint. */
endpoint = endpoint -> ux_endpoint_next_endpoint;
}
/* If trace is enabled, register this object. */
UX_TRACE_OBJECT_REGISTER(UX_TRACE_HOST_OBJECT_TYPE_INTERFACE, interface_ptr, 0, 0, 0);
/* Return completion status. */
return(UX_SUCCESS);
}
|