GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usbx_host_classes/src/ux_host_class_storage_device_support_check.c Lines: 14 14 100.0 %
Date: 2024-12-12 17:16:36 Branches: 4 4 100.0 %

Line Branch Exec Source
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
/**************************************************************************/
14
/**                                                                       */
15
/** USBX Component                                                        */
16
/**                                                                       */
17
/**   Storage Class                                                       */
18
/**                                                                       */
19
/**************************************************************************/
20
/**************************************************************************/
21
22
23
/* Include necessary system files.  */
24
25
#define UX_SOURCE_CODE
26
27
#include "ux_api.h"
28
#include "ux_host_class_storage.h"
29
#include "ux_host_stack.h"
30
31
32
#if defined(UX_HOST_STANDALONE) && defined(UX_HOST_CLASS_STORAGE_INCLUDE_LEGACY_PROTOCOL_SUPPORT)
33
#error Only Mass Storage BulkOnly (BO) is supported in standalone mode right now.
34
#endif
35
/**************************************************************************/
36
/*                                                                        */
37
/*  FUNCTION                                               RELEASE        */
38
/*                                                                        */
39
/*    _ux_host_class_storage_device_support_check         PORTABLE C      */
40
/*                                                           6.1.10       */
41
/*  AUTHOR                                                                */
42
/*                                                                        */
43
/*    Chaoqiong Xiao, Microsoft Corporation                               */
44
/*                                                                        */
45
/*  DESCRIPTION                                                           */
46
/*                                                                        */
47
/*    This function verifies the support for the subclass and protocol    */
48
/*    of the USB device. If the device is supported it will update the    */
49
/*    storage class instances with the transport layer functions.         */
50
/*                                                                        */
51
/*  INPUT                                                                 */
52
/*                                                                        */
53
/*    storage                               Pointer to storage class      */
54
/*                                                                        */
55
/*  OUTPUT                                                                */
56
/*                                                                        */
57
/*    Completion Status                                                   */
58
/*                                                                        */
59
/*  CALLS                                                                 */
60
/*                                                                        */
61
/*    None                                                                */
62
/*                                                                        */
63
/*  CALLED BY                                                             */
64
/*                                                                        */
65
/*    Storage Class                                                       */
66
/*                                                                        */
67
/*  RELEASE HISTORY                                                       */
68
/*                                                                        */
69
/*    DATE              NAME                      DESCRIPTION             */
70
/*                                                                        */
71
/*  05-19-2020     Chaoqiong Xiao           Initial Version 6.0           */
72
/*  09-30-2020     Chaoqiong Xiao           Modified comment(s),          */
73
/*                                            resulting in version 6.1    */
74
/*  01-31-2022     Chaoqiong Xiao           Modified comment(s),          */
75
/*                                            added standalone support,   */
76
/*                                            resulting in version 6.1.10 */
77
/*                                                                        */
78
/**************************************************************************/
79
140
UINT  _ux_host_class_storage_device_support_check(UX_HOST_CLASS_STORAGE *storage)
80
{
81
82
    /* Check for the protocol type (BO/CB/CBI) and update the transport functions.  */
83
140
    switch(storage -> ux_host_class_storage_interface -> ux_interface_descriptor.bInterfaceProtocol)
84
    {
85
86
139
    case UX_HOST_CLASS_STORAGE_PROTOCOL_BO:
87
88
#if !defined(UX_HOST_STANDALONE)
89
139
        storage -> ux_host_class_storage_transport =  _ux_host_class_storage_transport_bo;
90
#endif
91
139
        break;
92
93
#ifdef UX_HOST_CLASS_STORAGE_INCLUDE_LEGACY_PROTOCOL_SUPPORT
94
    case UX_HOST_CLASS_STORAGE_PROTOCOL_CB:
95
96
#if !defined(UX_HOST_STANDALONE)
97
        storage -> ux_host_class_storage_transport =  _ux_host_class_storage_transport_cb;
98
#endif
99
        break;
100
101
102
    case UX_HOST_CLASS_STORAGE_PROTOCOL_CBI:
103
104
#if !defined(UX_HOST_STANDALONE)
105
106
        /* In case of CBI, the subclass must be UFI, if not, default back to CB transport.  */
107
        if (storage -> ux_host_class_storage_interface -> ux_interface_descriptor.bInterfaceSubClass == UX_HOST_CLASS_STORAGE_SUBCLASS_UFI)
108
            storage -> ux_host_class_storage_transport =  _ux_host_class_storage_transport_cbi;
109
        else
110
            storage -> ux_host_class_storage_transport =  _ux_host_class_storage_transport_cb;
111
#endif
112
        break;
113
114
#endif
115
116
1
    default:
117
118
        /* Error trap. */
119
1
        _ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_HOST_CLASS_PROTOCOL_ERROR);
120
121
        /* If trace is enabled, insert this event into the trace buffer.  */
122
        UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_HOST_CLASS_PROTOCOL_ERROR, storage, 0, 0, UX_TRACE_ERRORS, 0, 0)
123
124
1
        return(UX_HOST_CLASS_PROTOCOL_ERROR);
125
    }
126
127
    /* Check for the sub class and make sure we support it.  */
128
139
    switch (storage -> ux_host_class_storage_interface -> ux_interface_descriptor.bInterfaceSubClass)
129
    {
130
131
#ifdef UX_HOST_CLASS_STORAGE_INCLUDE_LEGACY_PROTOCOL_SUPPORT
132
    case UX_HOST_CLASS_STORAGE_SUBCLASS_UFI:
133
#endif
134
138
    case UX_HOST_CLASS_STORAGE_SUBCLASS_RBC:
135
    case UX_HOST_CLASS_STORAGE_SUBCLASS_SCSI:
136
    case UX_HOST_CLASS_STORAGE_SUBCLASS_SFF8020:
137
    case UX_HOST_CLASS_STORAGE_SUBCLASS_SFF8070:
138
139
138
        return(UX_SUCCESS);
140
141
1
    default:
142
143
        /* Error trap. */
144
1
        _ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_HOST_CLASS_PROTOCOL_ERROR);
145
146
        /* If trace is enabled, insert this event into the trace buffer.  */
147
        UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_HOST_CLASS_PROTOCOL_ERROR, storage, 0, 0, UX_TRACE_ERRORS, 0, 0)
148
149
1
        return(UX_HOST_CLASS_PROTOCOL_ERROR);
150
    }
151
}