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 /** USBX Component                                                        */
15 /**                                                                       */
16 /**   Device DFU Class                                                    */
17 /**                                                                       */
18 /**************************************************************************/
19 /**************************************************************************/
20 
21 #define UX_SOURCE_CODE
22 
23 
24 /* Include necessary system files.  */
25 
26 #include "ux_api.h"
27 #include "ux_device_class_dfu.h"
28 #include "ux_device_stack.h"
29 
30 
31 /**************************************************************************/
32 /*                                                                        */
33 /*  FUNCTION                                               RELEASE        */
34 /*                                                                        */
35 /*    _ux_device_class_dfu_state_sync                     PORTABLE C      */
36 /*                                                           6.1.6        */
37 /*  AUTHOR                                                                */
38 /*                                                                        */
39 /*    Chaoqiong Xiao, Microsoft Corporation                               */
40 /*                                                                        */
41 /*  DESCRIPTION                                                           */
42 /*                                                                        */
43 /*    This function syncs the USB DFU device state.                       */
44 /*    This allows application to move DFU state out of follow:            */
45 /*    - dfuDNBUSY -> dfuDNLOAD-SYNC                                       */
46 /*    - dfuMANIFEST -> dfuMANIFEST-SYNC                                   */
47 /*    Other states will be kept.                                          */
48 /*    Note the dfuDNBUSY and dfuMANIFEST is involved by returning busy    */
49 /*    status in application ux_slave_class_dfu_get_status callback, and   */
50 /*    needs application to issue ux_device_class_dfu_state_sync to go     */
51 /*    out of the state.                                                   */
52 /*                                                                        */
53 /*  INPUT                                                                 */
54 /*                                                                        */
55 /*    dfu                                   Pointer to DFU instance       */
56 /*                                                                        */
57 /*  OUTPUT                                                                */
58 /*                                                                        */
59 /*    None                                                                */
60 /*                                                                        */
61 /*  CALLS                                                                 */
62 /*                                                                        */
63 /*    None                                                                */
64 /*                                                                        */
65 /*  CALLED BY                                                             */
66 /*                                                                        */
67 /*    Application Code                                                    */
68 /*    USBX Source Code                                                    */
69 /*                                                                        */
70 /*  RELEASE HISTORY                                                       */
71 /*                                                                        */
72 /*    DATE              NAME                      DESCRIPTION             */
73 /*                                                                        */
74 /*  04-02-2021     Chaoqiong Xiao           Initial Version 6.1.6         */
75 /*                                                                        */
76 /**************************************************************************/
_ux_device_class_dfu_state_sync(UX_SLAVE_CLASS_DFU * dfu)77 VOID _ux_device_class_dfu_state_sync(UX_SLAVE_CLASS_DFU *dfu)
78 {
79 UX_INTERRUPT_SAVE_AREA
80 
81     UX_PARAMETER_NOT_USED(dfu);
82     UX_DISABLE
83     switch(_ux_system_slave -> ux_system_slave_device_dfu_state_machine)
84     {
85     case UX_SLAVE_CLASS_DFU_STATUS_STATE_DFU_DNBUSY:
86         _ux_system_slave -> ux_system_slave_device_dfu_state_machine =
87                             UX_SLAVE_CLASS_DFU_STATUS_STATE_DFU_DNLOAD_SYNC;
88         break;
89     case UX_SLAVE_CLASS_DFU_STATUS_STATE_DFU_MANIFEST:
90         _ux_system_slave -> ux_system_slave_device_dfu_state_machine =
91                             UX_SLAVE_CLASS_DFU_STATUS_STATE_DFU_MANIFEST_SYNC;
92         break;
93     default:
94         break;
95     }
96     UX_RESTORE
97 }
98