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 |
|
|
/** */ |
16 |
|
|
/** USBX Component */ |
17 |
|
|
/** */ |
18 |
|
|
/** Storage Class */ |
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_class_storage.h" |
30 |
|
|
#include "ux_host_stack.h" |
31 |
|
|
|
32 |
|
|
|
33 |
|
|
/**************************************************************************/ |
34 |
|
|
/* */ |
35 |
|
|
/* FUNCTION RELEASE */ |
36 |
|
|
/* */ |
37 |
|
|
/* _ux_host_class_storage_configure PORTABLE C */ |
38 |
|
|
/* 6.1 */ |
39 |
|
|
/* AUTHOR */ |
40 |
|
|
/* */ |
41 |
|
|
/* Chaoqiong Xiao, Microsoft Corporation */ |
42 |
|
|
/* */ |
43 |
|
|
/* DESCRIPTION */ |
44 |
|
|
/* */ |
45 |
|
|
/* This function calls the USBX stack to do a SET_CONFIGURATION to the */ |
46 |
|
|
/* storage device. Once the storage is configured, its interface will */ |
47 |
|
|
/* be activated. The bulk endpoints enumerated(1 IN, 1 OUT). */ |
48 |
|
|
/* */ |
49 |
|
|
/* INPUT */ |
50 |
|
|
/* */ |
51 |
|
|
/* storage Pointer to storage class */ |
52 |
|
|
/* */ |
53 |
|
|
/* OUTPUT */ |
54 |
|
|
/* */ |
55 |
|
|
/* Completion Status */ |
56 |
|
|
/* */ |
57 |
|
|
/* CALLS */ |
58 |
|
|
/* */ |
59 |
|
|
/* _ux_host_stack_configuration_interface_get Get configuration */ |
60 |
|
|
/* _ux_host_stack_device_configuration_get Get device config */ |
61 |
|
|
/* _ux_host_stack_device_configuration_select Select configuration */ |
62 |
|
|
/* */ |
63 |
|
|
/* CALLED BY */ |
64 |
|
|
/* */ |
65 |
|
|
/* Storage Class */ |
66 |
|
|
/* */ |
67 |
|
|
/**************************************************************************/ |
68 |
|
134 |
UINT _ux_host_class_storage_configure(UX_HOST_CLASS_STORAGE *storage) |
69 |
|
|
{ |
70 |
|
|
|
71 |
|
|
UINT status; |
72 |
|
|
UX_CONFIGURATION *configuration; |
73 |
|
|
#if UX_MAX_DEVICES > 1 |
74 |
|
|
UX_DEVICE *parent_device; |
75 |
|
|
#endif |
76 |
|
|
|
77 |
|
|
|
78 |
|
|
/* If the device has been configured already, we don't need to do it |
79 |
|
|
again. */ |
80 |
✓✓ |
134 |
if (storage -> ux_host_class_storage_device -> ux_device_state == UX_DEVICE_CONFIGURED) |
81 |
|
126 |
return(UX_SUCCESS); |
82 |
|
|
|
83 |
|
|
/* A storage device normally has one configuration. So retrieve the 1st configuration |
84 |
|
|
only. */ |
85 |
|
8 |
status = _ux_host_stack_device_configuration_get(storage -> ux_host_class_storage_device, 0, &configuration); |
86 |
|
|
|
87 |
|
|
/* Check completion status. */ |
88 |
✓✓ |
8 |
if (status != UX_SUCCESS) |
89 |
|
|
{ |
90 |
|
|
|
91 |
|
|
/* Error trap. */ |
92 |
|
2 |
_ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_CONFIGURATION_HANDLE_UNKNOWN); |
93 |
|
|
|
94 |
|
|
/* If trace is enabled, insert this event into the trace buffer. */ |
95 |
|
|
UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_CONFIGURATION_HANDLE_UNKNOWN, storage -> ux_host_class_storage_device, 0, 0, UX_TRACE_ERRORS, 0, 0) |
96 |
|
|
|
97 |
|
2 |
return(UX_CONFIGURATION_HANDLE_UNKNOWN); |
98 |
|
|
} |
99 |
|
|
|
100 |
|
|
#if UX_MAX_DEVICES > 1 |
101 |
|
|
/* Check the storage device power source and check the parent power source for |
102 |
|
|
incompatible connections. */ |
103 |
✓✓ |
6 |
if (storage -> ux_host_class_storage_device -> ux_device_power_source == UX_DEVICE_BUS_POWERED) |
104 |
|
|
{ |
105 |
|
|
|
106 |
|
|
/* Pickup pointer to parent device. */ |
107 |
|
5 |
parent_device = storage -> ux_host_class_storage_device -> ux_device_parent; |
108 |
|
|
|
109 |
|
|
/* If the device is NULL, the parent is the root hub and we don't have to worry |
110 |
|
|
if the parent is not the root hub, check for its power source. */ |
111 |
✓✓✓✓
|
5 |
if ((parent_device != UX_NULL) && (parent_device -> ux_device_power_source == UX_DEVICE_BUS_POWERED)) |
112 |
|
|
{ |
113 |
|
|
|
114 |
|
|
/* Error trap. */ |
115 |
|
1 |
_ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_CONNECTION_INCOMPATIBLE); |
116 |
|
|
|
117 |
|
|
/* If trace is enabled, insert this event into the trace buffer. */ |
118 |
|
|
UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_CONNECTION_INCOMPATIBLE, storage, 0, 0, UX_TRACE_ERRORS, 0, 0) |
119 |
|
|
|
120 |
|
1 |
return(UX_CONNECTION_INCOMPATIBLE); |
121 |
|
|
} |
122 |
|
|
} |
123 |
|
|
#endif |
124 |
|
|
|
125 |
|
|
/* We have the valid configuration. Ask the USBX stack to set this configuration. */ |
126 |
|
5 |
status = _ux_host_stack_device_configuration_select(configuration); |
127 |
✓✓ |
5 |
if (status != UX_SUCCESS) |
128 |
|
3 |
return(status); |
129 |
|
|
|
130 |
|
|
/* If the operation went well, the storage device default alternate setting |
131 |
|
|
for the storage device interface is active and the interrupt endpoint is now enabled. |
132 |
|
|
We have to memorize the first interface since the interrupt endpoint is hooked to it. */ |
133 |
|
2 |
status = _ux_host_stack_configuration_interface_get(configuration, 0, 0, &storage -> ux_host_class_storage_interface); |
134 |
|
|
|
135 |
|
|
/* Check completion status. */ |
136 |
✓✓ |
2 |
if (status != UX_SUCCESS) |
137 |
|
|
{ |
138 |
|
|
/* Store the instance in the interface container, this is for the USBX stack |
139 |
|
|
when it needs to invoke the class. */ |
140 |
|
1 |
storage -> ux_host_class_storage_interface -> ux_interface_class_instance = (VOID *) storage; |
141 |
|
|
} |
142 |
|
|
|
143 |
|
|
/* Return completion status. */ |
144 |
|
2 |
return(status); |
145 |
|
|
} |
146 |
|
|
|