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 /** USBX Component */ 14 /** */ 15 /** Device CCID Class */ 16 /** */ 17 /**************************************************************************/ 18 /**************************************************************************/ 19 20 #define UX_SOURCE_CODE 21 22 23 /* Include necessary system files. */ 24 25 #include "ux_api.h" 26 #include "ux_device_class_ccid.h" 27 #include "ux_device_stack.h" 28 29 30 /**************************************************************************/ 31 /* */ 32 /* FUNCTION RELEASE */ 33 /* */ 34 /* _ux_device_class_ccid_uninitialize PORTABLE C */ 35 /* 6.3.0 */ 36 /* AUTHOR */ 37 /* */ 38 /* Chaoqiong Xiao, Microsoft Corporation */ 39 /* */ 40 /* DESCRIPTION */ 41 /* */ 42 /* This function uninitialize the USB CCID device. */ 43 /* */ 44 /* INPUT */ 45 /* */ 46 /* command Pointer to ccid command */ 47 /* */ 48 /* OUTPUT */ 49 /* */ 50 /* Completion Status */ 51 /* */ 52 /* CALLS */ 53 /* */ 54 /* _ux_utility_memory_free Free memory */ 55 /* _ux_device_mutex_delete Delete mutex */ 56 /* _ux_utility_event_flags_delete Delete event flags */ 57 /* _ux_utility_thread_delete Delete thread */ 58 /* */ 59 /* CALLED BY */ 60 /* */ 61 /* USBX Source Code */ 62 /* */ 63 /* RELEASE HISTORY */ 64 /* */ 65 /* DATE NAME DESCRIPTION */ 66 /* */ 67 /* 04-25-2022 Chaoqiong Xiao Initial Version 6.1.11 */ 68 /* 10-31-2023 Chaoqiong Xiao Modified comment(s), */ 69 /* added a new mode to manage */ 70 /* endpoint buffer in classes, */ 71 /* resulting in version 6.3.0 */ 72 /* */ 73 /**************************************************************************/ _ux_device_class_ccid_uninitialize(UX_SLAVE_CLASS_COMMAND * command)74UINT _ux_device_class_ccid_uninitialize(UX_SLAVE_CLASS_COMMAND *command) 75 { 76 77 UX_DEVICE_CLASS_CCID *ccid; 78 UX_SLAVE_CLASS *ccid_class; 79 #if !defined(UX_DEVICE_STANDALONE) 80 UX_DEVICE_CLASS_CCID_RUNNER *runner; 81 ULONG i; 82 #endif 83 84 /* Get the class container. */ 85 ccid_class = command -> ux_slave_class_command_class_ptr; 86 87 /* Get the CCID instance. */ 88 ccid = (UX_DEVICE_CLASS_CCID *)ccid_class -> ux_slave_class_instance; 89 90 /* Sanity check. */ 91 if (ccid != UX_NULL) 92 { 93 94 /* Free allocated resources. */ 95 #if !defined(UX_DEVICE_STANDALONE) 96 _ux_device_thread_delete(&ccid -> ux_device_class_ccid_notify_thread); 97 _ux_device_thread_delete(&ccid -> ux_device_class_ccid_thread); 98 for (i = 0; 99 i < ccid -> ux_device_class_ccid_parameter.ux_device_class_ccid_max_n_busy_slots; 100 i ++) 101 { 102 runner = &ccid -> ux_device_class_ccid_runners[i]; 103 _ux_device_thread_delete(&runner -> ux_device_class_ccid_runner_thread); 104 } 105 _ux_device_event_flags_delete(&ccid -> ux_device_class_ccid_events); 106 _ux_device_mutex_delete(&ccid -> ux_device_class_ccid_mutex); 107 _ux_device_semaphore_delete(&ccid -> ux_device_class_ccid_notify_semaphore); 108 _ux_device_mutex_delete(&ccid -> ux_device_class_ccid_response_mutex); 109 #endif 110 111 #if UX_DEVICE_ENDPOINT_BUFFER_OWNER == 1 112 /* Free the bulk in endpoint memory. */ 113 _ux_utility_memory_free(ccid -> ux_device_class_ccid_endpoint_buffer); 114 #endif 115 116 /* Free instance memory. */ 117 _ux_utility_memory_free(ccid); 118 } 119 120 /* Return completion status. */ 121 return(UX_SUCCESS); 122 } 123
