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 HID 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_hid.h" 28 #include "ux_device_stack.h" 29 30 31 /**************************************************************************/ 32 /* */ 33 /* FUNCTION RELEASE */ 34 /* */ 35 /* _ux_device_class_hid_uninitialize PORTABLE C */ 36 /* 6.1.12 */ 37 /* AUTHOR */ 38 /* */ 39 /* Chaoqiong Xiao, Microsoft Corporation */ 40 /* */ 41 /* DESCRIPTION */ 42 /* */ 43 /* This function uninitializes the USB HID device. */ 44 /* */ 45 /* INPUT */ 46 /* */ 47 /* command Pointer to hid command */ 48 /* */ 49 /* OUTPUT */ 50 /* */ 51 /* Completion Status */ 52 /* */ 53 /* CALLS */ 54 /* */ 55 /* _ux_device_thread_delete Remove storage thread. */ 56 /* _ux_utility_memory_free Free memory used by storage */ 57 /* _ux_utility_event_flags_delete Remove flag event structure */ 58 /* */ 59 /* */ 60 /* CALLED BY */ 61 /* */ 62 /* USBX Source Code */ 63 /* */ 64 /* RELEASE HISTORY */ 65 /* */ 66 /* DATE NAME DESCRIPTION */ 67 /* */ 68 /* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */ 69 /* 09-30-2020 Chaoqiong Xiao Modified comment(s), */ 70 /* resulting in version 6.1 */ 71 /* 01-31-2022 Chaoqiong Xiao Modified comment(s), */ 72 /* added standalone support, */ 73 /* added interrupt OUT support,*/ 74 /* resulting in version 6.1.10 */ 75 /* 04-25-2022 Chaoqiong Xiao Modified comment(s), */ 76 /* resulting in version 6.1.11 */ 77 /* 07-29-2022 Chaoqiong Xiao Modified comment(s), */ 78 /* fixed parameter/variable */ 79 /* names conflict C++ keyword, */ 80 /* resulting in version 6.1.12 */ 81 /* */ 82 /**************************************************************************/ _ux_device_class_hid_uninitialize(UX_SLAVE_CLASS_COMMAND * command)83UINT _ux_device_class_hid_uninitialize(UX_SLAVE_CLASS_COMMAND *command) 84 { 85 86 UX_SLAVE_CLASS_HID *hid; 87 UX_SLAVE_CLASS *class_ptr; 88 89 90 /* Get the class container. */ 91 class_ptr = command -> ux_slave_class_command_class_ptr; 92 93 /* Get the class instance in the container. */ 94 hid = (UX_SLAVE_CLASS_HID *) class_ptr -> ux_slave_class_instance; 95 96 #if !defined(UX_DEVICE_STANDALONE) 97 98 /* Remove HID thread. */ 99 _ux_device_thread_delete(&class_ptr -> ux_slave_class_thread); 100 101 /* Remove the thread used by HID. */ 102 _ux_utility_memory_free(class_ptr -> ux_slave_class_thread_stack); 103 104 /* Delete the event flag group for the hid class. */ 105 _ux_device_event_flags_delete(&hid -> ux_device_class_hid_event_flags_group); 106 #endif 107 108 /* Free memory for the array. */ 109 _ux_utility_memory_free(hid -> ux_device_class_hid_event_array); 110 111 #if defined(UX_DEVICE_CLASS_HID_INTERRUPT_OUT_SUPPORT) 112 113 #if !defined(UX_DEVICE_STANDALONE) 114 115 /* Free read mutex. */ 116 _ux_device_mutex_delete(&hid -> ux_device_class_hid_read_mutex); 117 #endif 118 119 /* Uninitialize receiver. */ 120 if (hid -> ux_device_class_hid_receiver) 121 hid -> ux_device_class_hid_receiver -> 122 ux_device_class_hid_receiver_uninitialize(hid -> ux_device_class_hid_receiver); 123 #endif 124 125 /* Free the resources. */ 126 _ux_utility_memory_free(hid); 127 128 /* Return completion status. */ 129 return(UX_SUCCESS); 130 } 131 132
