1 /***************************************************************************
2 * Copyright (c) 2024 Microsoft Corporation
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the MIT License which is available at
6 * https://opensource.org/licenses/MIT.
7 *
8 * SPDX-License-Identifier: MIT
9 **************************************************************************/
10
11 /**************************************************************************/
12 /** */
13 /** USBX Component */
14 /** */
15 /** Device CDC Class */
16 /** */
17 /**************************************************************************/
18 /**************************************************************************/
19
20 #define UX_SOURCE_CODE
21
22
23 /* Include necessary system files. */
24
25 #include "ux_api.h"
26 #include "ux_device_class_cdc_acm.h"
27 #include "ux_device_stack.h"
28
29
30 /**************************************************************************/
31 /* */
32 /* FUNCTION RELEASE */
33 /* */
34 /* _ux_device_class_cdc_acm_activate PORTABLE C */
35 /* 6.1.12 */
36 /* AUTHOR */
37 /* */
38 /* Chaoqiong Xiao, Microsoft Corporation */
39 /* */
40 /* DESCRIPTION */
41 /* */
42 /* This function initializes the USB CDC device. */
43 /* */
44 /* INPUT */
45 /* */
46 /* command Pointer to cdc_acm command */
47 /* */
48 /* OUTPUT */
49 /* */
50 /* Completion Status */
51 /* */
52 /* CALLS */
53 /* */
54 /* None */
55 /* */
56 /* CALLED BY */
57 /* */
58 /* USBX Source Code */
59 /* */
60 /* RELEASE HISTORY */
61 /* */
62 /* DATE NAME DESCRIPTION */
63 /* */
64 /* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */
65 /* 09-30-2020 Chaoqiong Xiao Modified comment(s), */
66 /* resulting in version 6.1 */
67 /* 07-29-2022 Chaoqiong Xiao Modified comment(s), */
68 /* fixed parameter/variable */
69 /* names conflict C++ keyword, */
70 /* resulting in version 6.1.12 */
71 /* */
72 /**************************************************************************/
_ux_device_class_cdc_acm_activate(UX_SLAVE_CLASS_COMMAND * command)73 UINT _ux_device_class_cdc_acm_activate(UX_SLAVE_CLASS_COMMAND *command)
74 {
75
76 UX_SLAVE_INTERFACE *interface_ptr;
77 UX_SLAVE_CLASS *class_ptr;
78 UX_SLAVE_CLASS_CDC_ACM *cdc_acm;
79
80 /* Get the class container. */
81 class_ptr = command -> ux_slave_class_command_class_ptr;
82
83 /* Get the class instance in the container. */
84 cdc_acm = (UX_SLAVE_CLASS_CDC_ACM *) class_ptr -> ux_slave_class_instance;
85
86 /* Get the interface that owns this instance. */
87 interface_ptr = (UX_SLAVE_INTERFACE *) command -> ux_slave_class_command_interface;
88
89 /* Store the class instance into the interface. */
90 interface_ptr -> ux_slave_interface_class_instance = (VOID *)cdc_acm;
91
92 /* Now the opposite, store the interface in the class instance. */
93 cdc_acm -> ux_slave_class_cdc_acm_interface = interface_ptr;
94
95 /* If there is a activate function call it. */
96 if (cdc_acm -> ux_slave_class_cdc_acm_parameter.ux_slave_class_cdc_acm_instance_activate != UX_NULL)
97 {
98 /* Invoke the application. */
99 cdc_acm -> ux_slave_class_cdc_acm_parameter.ux_slave_class_cdc_acm_instance_activate(cdc_acm);
100 }
101
102 /* If trace is enabled, insert this event into the trace buffer. */
103 UX_TRACE_IN_LINE_INSERT(UX_TRACE_DEVICE_CLASS_CDC_ACM_ACTIVATE, cdc_acm, 0, 0, 0, UX_TRACE_DEVICE_CLASS_EVENTS, 0, 0)
104
105 /* If trace is enabled, register this object. */
106 UX_TRACE_OBJECT_REGISTER(UX_TRACE_DEVICE_OBJECT_TYPE_INTERFACE, cdc_acm, 0, 0, 0)
107
108 /* Return completion status. */
109 return(UX_SUCCESS);
110 }
111
112
