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 /** Device Storage 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_storage.h"
29 #include "ux_device_stack.h"
30
31
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _ux_device_class_storage_mode_select PORTABLE C */
37 /* 6.1.10 */
38 /* AUTHOR */
39 /* */
40 /* Chaoqiong Xiao, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function performs a MODE_SELECT SCSI command. It is not */
45 /* supported in this release. */
46 /* */
47 /* INPUT */
48 /* */
49 /* storage Pointer to storage class */
50 /* endpoint_in Pointer to IN endpoint */
51 /* endpoint_out Pointer to OUT endpoint */
52 /* cbwcb Pointer to CBWCB */
53 /* */
54 /* OUTPUT */
55 /* */
56 /* Completion Status */
57 /* */
58 /* CALLS */
59 /* */
60 /* _ux_device_stack_endpoint_stall Stall endpoint */
61 /* _ux_device_class_storage_csw_send Send CSW */
62 /* */
63 /* CALLED BY */
64 /* */
65 /* Device 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 /* optimized command logic, */
74 /* resulting in version 6.1 */
75 /* 12-31-2020 Chaoqiong Xiao Modified comment(s), */
76 /* fixed USB CV test issues, */
77 /* resulting in version 6.1.3 */
78 /* 01-31-2022 Chaoqiong Xiao Modified comment(s), */
79 /* added standalone support, */
80 /* resulting in version 6.1.10 */
81 /* */
82 /**************************************************************************/
_ux_device_class_storage_mode_select(UX_SLAVE_CLASS_STORAGE * storage,ULONG lun,UX_SLAVE_ENDPOINT * endpoint_in,UX_SLAVE_ENDPOINT * endpoint_out,UCHAR * cbwcb)83 UINT _ux_device_class_storage_mode_select(UX_SLAVE_CLASS_STORAGE *storage, ULONG lun,
84 UX_SLAVE_ENDPOINT *endpoint_in,
85 UX_SLAVE_ENDPOINT *endpoint_out, UCHAR * cbwcb)
86 {
87
88 UX_PARAMETER_NOT_USED(endpoint_in);
89 UX_PARAMETER_NOT_USED(cbwcb);
90
91 /* If trace is enabled, insert this event into the trace buffer. */
92 UX_TRACE_IN_LINE_INSERT(UX_TRACE_DEVICE_CLASS_STORAGE_MODE_SELECT, storage, lun, 0, 0, UX_TRACE_DEVICE_CLASS_EVENTS, 0, 0)
93
94 /* This command is not yet supported. So Stall the endpoint. */
95 if (storage -> ux_slave_class_storage_host_length)
96 {
97
98 #if !defined(UX_DEVICE_STANDALONE)
99 _ux_device_stack_endpoint_stall(endpoint_out);
100 #else
101 UX_PARAMETER_NOT_USED(endpoint_out);
102 #endif
103
104 storage -> ux_slave_class_storage_csw_residue = storage -> ux_slave_class_storage_host_length;
105 }
106
107 /* And update the REQUEST_SENSE codes. */
108 storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_request_sense_status =
109 UX_DEVICE_CLASS_STORAGE_SENSE_STATUS(0x05,0x26,0x01);
110
111 /* Now we set the CSW with failure. */
112 storage -> ux_slave_class_storage_csw_status = UX_SLAVE_CLASS_STORAGE_CSW_FAILED;
113
114 /* Error trap. */
115 _ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_FUNCTION_NOT_SUPPORTED);
116
117 /* If trace is enabled, insert this event into the trace buffer. */
118 UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_FUNCTION_NOT_SUPPORTED, 0, 0, 0, UX_TRACE_ERRORS, 0, 0)
119
120 /* Return not supported error! */
121 return(UX_FUNCTION_NOT_SUPPORTED);
122 }
123
124
