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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usbx_device_classes/src/ux_device_class_cdc_ecm_entry.c	Lines:	28	28	100.0 %
Date:	2026-03-06 18:57:10	Branches:	12	12	100.0 %


/***************************************************************************
 * 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                                                        */
/**                                                                       */
/**   Device CDC_ECM Class                                                */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/

#define UX_SOURCE_CODE


/* Include necessary system files.  */

#include "ux_api.h"
#include "ux_device_class_cdc_ecm.h"
#include "ux_device_stack.h"


/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _ux_device_class_cdc_ecm_entry                      PORTABLE C      */
/*                                                           6.x          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Chaoqiong Xiao, Microsoft Corporation                               */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function is the entry point of the cdc_ecm class. It           */
/*    will be called by the device stack enumeration module when the      */
/*    host has sent a SET_CONFIGURATION command and the cdc_ecm interface */
/*    needs to be mounted.                                                */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    command                               Pointer to class command      */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    Completion Status                                                   */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _ux_device_class_cdc_ecm_initialize       Initialize cdc_ecm class  */
/*    _ux_device_class_cdc_ecm_uninitialize     Uninitialize cdc_ecm class*/
/*    _ux_device_class_cdc_ecm_activate         Activate cdc_ecm class    */
/*    _ux_device_class_cdc_ecm_deactivate       Deactivate cdc_ecm class  */
/*    _ux_device_class_cdc_ecm_change           Alternate setting change  */
/*    _ux_device_class_cdc_ecm_control_request  Request control           */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    CDC_ECM Class                                                       */
/*                                                                        */
/**************************************************************************/
UINT  _ux_device_class_cdc_ecm_entry(UX_SLAVE_CLASS_COMMAND *command)
{

UINT        status;

    /* The command request will tell us we need to do here, either a enumeration
       query, an activation or a deactivation.  */
    switch (command -> ux_slave_class_command_request)
    {

    case UX_SLAVE_CLASS_COMMAND_INITIALIZE:

        /* Call the init function of the CDC_ECM class.  */
        status =  _ux_device_class_cdc_ecm_initialize(command);

        /* Return the completion status.  */
        return(status);

    case UX_SLAVE_CLASS_COMMAND_UNINITIALIZE:

        /* Call the uninit function of the CDC_ECM class.  */
        status =  _ux_device_class_cdc_ecm_uninitialize(command);

        /* Return the completion status.  */
        return(status);

    case UX_SLAVE_CLASS_COMMAND_QUERY:

        /* Check the CLASS definition in the interface descriptor. */
        if (command -> ux_slave_class_command_class == UX_DEVICE_CLASS_CDC_ECM_CLASS_COMMUNICATION_CONTROL ||
                command -> ux_slave_class_command_class == UX_DEVICE_CLASS_CDC_ECM_CLASS_COMMUNICATION_DATA)
            return(UX_SUCCESS);
        else
            return(UX_NO_CLASS_MATCH);

    case UX_SLAVE_CLASS_COMMAND_ACTIVATE:

        /* The activate command is used when the host has sent a SET_CONFIGURATION command
           and this interface has to be mounted. In CDC ECM, the alternate setting 0 has no endpoints.
           Only the Alternate Setting 1 has the Bulk IN and OUT endpoints active.  */
        status =  _ux_device_class_cdc_ecm_activate(command);

        /* Return the completion status.  */
        return(status);

    case UX_SLAVE_CLASS_COMMAND_CHANGE:

        /* The change command is used when the host has sent a SET_INTERFACE command
           to go from Alternate Setting 0 to 1 or revert to the default mode.  */
        status =  _ux_device_class_cdc_ecm_change(command);

        /* Return the completion status.  */
        return(status);


    case UX_SLAVE_CLASS_COMMAND_DEACTIVATE:

        /* The deactivate command is used when the device has been extracted.
           The device endpoints have to be dismounted and the cdc_ecm thread canceled.  */
        status =  _ux_device_class_cdc_ecm_deactivate(command);

        /* Return the completion status.  */
        return(status);

    case UX_SLAVE_CLASS_COMMAND_REQUEST:

        /* The request command is used when the host sends a command on the control endpoint.  */
        status = _ux_device_class_cdc_ecm_control_request(command);

        /* Return the completion status.  */
        return(status);

    default:

        /* Error trap. */
        _ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_FUNCTION_NOT_SUPPORTED);

        /* If trace is enabled, insert this event into the trace buffer.  */
        UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_FUNCTION_NOT_SUPPORTED, 0, 0, 0, UX_TRACE_ERRORS, 0, 0)

        /* Return an error.  */
        return(UX_FUNCTION_NOT_SUPPORTED);
    }
}



Generated by: GCOVR (Version 4.1)

Line	Branch	Exec	Source
1			/***************************************************************************
2			* Copyright (c) 2024 Microsoft Corporation
3			* Copyright (c) 2026-present Eclipse ThreadX contributors
4			*
5			* This program and the accompanying materials are made available under the
6			* terms of the MIT License which is available at
7			* https://opensource.org/licenses/MIT.
8			*
9			* SPDX-License-Identifier: MIT
10			**************************************************************************/
11
12			/**************************************************************************/
13			/**************************************************************************/
14			/** */
15			/** USBX Component */
16			/** */
17			/** Device CDC_ECM Class */
18			/** */
19			/**************************************************************************/
20			/**************************************************************************/
21
22			#define UX_SOURCE_CODE
23
24
25			/* Include necessary system files. */
26
27			#include "ux_api.h"
28			#include "ux_device_class_cdc_ecm.h"
29			#include "ux_device_stack.h"
30
31
32			/**************************************************************************/
33			/* */
34			/* FUNCTION RELEASE */
35			/* */
36			/* _ux_device_class_cdc_ecm_entry PORTABLE C */
37			/* 6.x */
38			/* AUTHOR */
39			/* */
40			/* Chaoqiong Xiao, Microsoft Corporation */
41			/* */
42			/* DESCRIPTION */
43			/* */
44			/* This function is the entry point of the cdc_ecm class. It */
45			/* will be called by the device stack enumeration module when the */
46			/* host has sent a SET_CONFIGURATION command and the cdc_ecm interface */
47			/* needs to be mounted. */
48			/* */
49			/* INPUT */
50			/* */
51			/* command Pointer to class command */
52			/* */
53			/* OUTPUT */
54			/* */
55			/* Completion Status */
56			/* */
57			/* CALLS */
58			/* */
59			/* _ux_device_class_cdc_ecm_initialize Initialize cdc_ecm class */
60			/* _ux_device_class_cdc_ecm_uninitialize Uninitialize cdc_ecm class*/
61			/* _ux_device_class_cdc_ecm_activate Activate cdc_ecm class */
62			/* _ux_device_class_cdc_ecm_deactivate Deactivate cdc_ecm class */
63			/* _ux_device_class_cdc_ecm_change Alternate setting change */
64			/* _ux_device_class_cdc_ecm_control_request Request control */
65			/* */
66			/* CALLED BY */
67			/* */
68			/* CDC_ECM Class */
69			/* */
70			/**************************************************************************/
71		906	UINT _ux_device_class_cdc_ecm_entry(UX_SLAVE_CLASS_COMMAND *command)
72			{
73
74			UINT status;
75
76			/* The command request will tell us we need to do here, either a enumeration
77			query, an activation or a deactivation. */
78	✓✓✓✓ ✓✓✓✓	906	switch (command -> ux_slave_class_command_request)
79			{
80
81		65	case UX_SLAVE_CLASS_COMMAND_INITIALIZE:
82
83			/* Call the init function of the CDC_ECM class. */
84		65	status = _ux_device_class_cdc_ecm_initialize(command);
85
86			/* Return the completion status. */
87		65	return(status);
88
89		7	case UX_SLAVE_CLASS_COMMAND_UNINITIALIZE:
90
91			/* Call the uninit function of the CDC_ECM class. */
92		7	status = _ux_device_class_cdc_ecm_uninitialize(command);
93
94			/* Return the completion status. */
95		7	return(status);
96
97		246	case UX_SLAVE_CLASS_COMMAND_QUERY:
98
99			/* Check the CLASS definition in the interface descriptor. */
100	✓✓	246	if (command -> ux_slave_class_command_class == UX_DEVICE_CLASS_CDC_ECM_CLASS_COMMUNICATION_CONTROL \|\|
101	✓✓	125	command -> ux_slave_class_command_class == UX_DEVICE_CLASS_CDC_ECM_CLASS_COMMUNICATION_DATA)
102		242	return(UX_SUCCESS);
103			else
104		4	return(UX_NO_CLASS_MATCH);
105
106		242	case UX_SLAVE_CLASS_COMMAND_ACTIVATE:
107
108			/* The activate command is used when the host has sent a SET_CONFIGURATION command
109			and this interface has to be mounted. In CDC ECM, the alternate setting 0 has no endpoints.
110			Only the Alternate Setting 1 has the Bulk IN and OUT endpoints active. */
111		242	status = _ux_device_class_cdc_ecm_activate(command);
112
113			/* Return the completion status. */
114		242	return(status);
115
116		101	case UX_SLAVE_CLASS_COMMAND_CHANGE:
117
118			/* The change command is used when the host has sent a SET_INTERFACE command
119			to go from Alternate Setting 0 to 1 or revert to the default mode. */
120		101	status = _ux_device_class_cdc_ecm_change(command);
121
122			/* Return the completion status. */
123		101	return(status);
124
125
126		236	case UX_SLAVE_CLASS_COMMAND_DEACTIVATE:
127
128			/* The deactivate command is used when the device has been extracted.
129			The device endpoints have to be dismounted and the cdc_ecm thread canceled. */
130		236	status = _ux_device_class_cdc_ecm_deactivate(command);
131
132			/* Return the completion status. */
133		236	return(status);
134
135		8	case UX_SLAVE_CLASS_COMMAND_REQUEST:
136
137			/* The request command is used when the host sends a command on the control endpoint. */
138		8	status = _ux_device_class_cdc_ecm_control_request(command);
139
140			/* Return the completion status. */
141		8	return(status);
142
143		1	default:
144
145			/* Error trap. */
146		1	_ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_FUNCTION_NOT_SUPPORTED);
147
148			/* If trace is enabled, insert this event into the trace buffer. */
149			UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_FUNCTION_NOT_SUPPORTED, 0, 0, 0, UX_TRACE_ERRORS, 0, 0)
150
151			/* Return an error. */
152		1	return(UX_FUNCTION_NOT_SUPPORTED);
153			}
154			}
155