1 /**************************************************************************/
2 /* */
3 /* Copyright (c) Microsoft Corporation. All rights reserved. */
4 /* */
5 /* This software is licensed under the Microsoft Software License */
6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */
7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
8 /* and in the root directory of this software. */
9 /* */
10 /**************************************************************************/
11
12
13 /**************************************************************************/
14 /**************************************************************************/
15 /** */
16 /** USBX Component */
17 /** */
18 /** Device Storage Class */
19 /** */
20 /**************************************************************************/
21 /**************************************************************************/
22
23 #define UX_SOURCE_CODE
24
25
26 /* Include necessary system files. */
27
28 #include "ux_api.h"
29 #include "ux_device_class_storage.h"
30 #include "ux_device_stack.h"
31
32
33 /**************************************************************************/
34 /* */
35 /* FUNCTION RELEASE */
36 /* */
37 /* _ux_device_class_storage_mode_select PORTABLE C */
38 /* 6.1.10 */
39 /* AUTHOR */
40 /* */
41 /* Chaoqiong Xiao, Microsoft Corporation */
42 /* */
43 /* DESCRIPTION */
44 /* */
45 /* This function performs a MODE_SELECT SCSI command. It is not */
46 /* supported in this release. */
47 /* */
48 /* INPUT */
49 /* */
50 /* storage Pointer to storage class */
51 /* endpoint_in Pointer to IN endpoint */
52 /* endpoint_out Pointer to OUT endpoint */
53 /* cbwcb Pointer to CBWCB */
54 /* */
55 /* OUTPUT */
56 /* */
57 /* Completion Status */
58 /* */
59 /* CALLS */
60 /* */
61 /* _ux_device_stack_endpoint_stall Stall endpoint */
62 /* _ux_device_class_storage_csw_send Send CSW */
63 /* */
64 /* CALLED BY */
65 /* */
66 /* Device Storage Class */
67 /* */
68 /* RELEASE HISTORY */
69 /* */
70 /* DATE NAME DESCRIPTION */
71 /* */
72 /* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */
73 /* 09-30-2020 Chaoqiong Xiao Modified comment(s), */
74 /* optimized command logic, */
75 /* resulting in version 6.1 */
76 /* 12-31-2020 Chaoqiong Xiao Modified comment(s), */
77 /* fixed USB CV test issues, */
78 /* resulting in version 6.1.3 */
79 /* 01-31-2022 Chaoqiong Xiao Modified comment(s), */
80 /* added standalone support, */
81 /* resulting in version 6.1.10 */
82 /* */
83 /**************************************************************************/
_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)84 UINT _ux_device_class_storage_mode_select(UX_SLAVE_CLASS_STORAGE *storage, ULONG lun,
85 UX_SLAVE_ENDPOINT *endpoint_in,
86 UX_SLAVE_ENDPOINT *endpoint_out, UCHAR * cbwcb)
87 {
88
89 UX_PARAMETER_NOT_USED(endpoint_in);
90 UX_PARAMETER_NOT_USED(cbwcb);
91
92 /* If trace is enabled, insert this event into the trace buffer. */
93 UX_TRACE_IN_LINE_INSERT(UX_TRACE_DEVICE_CLASS_STORAGE_MODE_SELECT, storage, lun, 0, 0, UX_TRACE_DEVICE_CLASS_EVENTS, 0, 0)
94
95 /* This command is not yet supported. So Stall the endpoint. */
96 if (storage -> ux_slave_class_storage_host_length)
97 {
98
99 #if !defined(UX_DEVICE_STANDALONE)
100 _ux_device_stack_endpoint_stall(endpoint_out);
101 #else
102 UX_PARAMETER_NOT_USED(endpoint_out);
103 #endif
104
105 storage -> ux_slave_class_storage_csw_residue = storage -> ux_slave_class_storage_host_length;
106 }
107
108 /* And update the REQUEST_SENSE codes. */
109 storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_request_sense_status =
110 UX_DEVICE_CLASS_STORAGE_SENSE_STATUS(0x05,0x26,0x01);
111
112 /* Now we set the CSW with failure. */
113 storage -> ux_slave_class_storage_csw_status = UX_SLAVE_CLASS_STORAGE_CSW_FAILED;
114
115 /* Error trap. */
116 _ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_FUNCTION_NOT_SUPPORTED);
117
118 /* If trace is enabled, insert this event into the trace buffer. */
119 UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_FUNCTION_NOT_SUPPORTED, 0, 0, 0, UX_TRACE_ERRORS, 0, 0)
120
121 /* Return not supported error! */
122 return(UX_FUNCTION_NOT_SUPPORTED);
123 }
124
125
