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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* |
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* This program and the accompanying materials are made available under the |
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* terms of the MIT License which is available at |
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* https://opensource.org/licenses/MIT. |
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* |
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* SPDX-License-Identifier: MIT |
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**************************************************************************/ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/** */ |
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/** USBX Component */ |
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/** */ |
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/** Device CDC Class */ |
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/** */ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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#define UX_SOURCE_CODE |
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/* Include necessary system files. */ |
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#include "ux_api.h" |
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#include "ux_device_class_cdc_acm.h" |
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#include "ux_device_stack.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _ux_device_class_cdc_acm_uninitialize PORTABLE C */ |
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/* 6.3.0 */ |
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/* AUTHOR */ |
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/* */ |
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/* Chaoqiong Xiao, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* This function uninitialize the cdc-acm class. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* command Pointer to a class command */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* Completion Status */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* _ux_device_mutex_delete Delete Mutex */ |
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/* _ux_utility_memory_free Free used local memory */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* CDC Class */ |
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/* */ |
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/* RELEASE HISTORY */ |
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/* */ |
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/* DATE NAME DESCRIPTION */ |
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/* */ |
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/* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */ |
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/* 09-30-2020 Chaoqiong Xiao Modified comment(s), */ |
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/* resulting in version 6.1 */ |
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/* 04-02-2021 Chaoqiong Xiao Modified comment(s), */ |
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/* added macro to disable */ |
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/* transmission support, */ |
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/* moved transmission resource */ |
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/* free to here (uninit), */ |
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/* resulting in version 6.1.6 */ |
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/* 01-31-2022 Chaoqiong Xiao Modified comment(s), */ |
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/* added standalone support, */ |
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/* resulting in version 6.1.10 */ |
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/* 04-25-2022 Chaoqiong Xiao Modified comment(s), */ |
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/* resulting in version 6.1.11 */ |
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/* 07-29-2022 Chaoqiong Xiao Modified comment(s), */ |
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/* fixed parameter/variable */ |
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/* names conflict C++ keyword, */ |
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/* resulting in version 6.1.12 */ |
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/* 10-31-2023 Chaoqiong Xiao Modified comment(s), */ |
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/* added zero copy support, */ |
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/* added a new mode to manage */ |
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/* endpoint buffer in classes, */ |
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/* resulting in version 6.3.0 */ |
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/* */ |
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/**************************************************************************/ |
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UINT _ux_device_class_cdc_acm_uninitialize(UX_SLAVE_CLASS_COMMAND *command) |
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{ |
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UX_SLAVE_CLASS_CDC_ACM *cdc_acm; |
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UX_SLAVE_CLASS *class_ptr; |
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/* Get the class container. */ |
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class_ptr = command -> ux_slave_class_command_class_ptr; |
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/* Get the class instance in the container. */ |
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cdc_acm = (UX_SLAVE_CLASS_CDC_ACM *) class_ptr -> ux_slave_class_instance; |
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/* Sanity check. */ |
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✓✓ |
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if (cdc_acm != UX_NULL) |
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{ |
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#if !defined(UX_DEVICE_STANDALONE) |
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/* Delete the IN endpoint mutex. */ |
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_ux_device_mutex_delete(&cdc_acm -> ux_slave_class_cdc_acm_endpoint_in_mutex); |
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/* Out Mutex. */ |
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_ux_device_mutex_delete(&cdc_acm -> ux_slave_class_cdc_acm_endpoint_out_mutex); |
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#ifndef UX_DEVICE_CLASS_CDC_ACM_TRANSMISSION_DISABLE |
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/* Free resources and return error. */ |
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_ux_utility_thread_delete(&cdc_acm -> ux_slave_class_cdc_acm_bulkin_thread); |
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_ux_utility_thread_delete(&cdc_acm -> ux_slave_class_cdc_acm_bulkout_thread); |
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_ux_utility_event_flags_delete(&cdc_acm -> ux_slave_class_cdc_acm_event_flags_group); |
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_ux_utility_memory_free(cdc_acm -> ux_slave_class_cdc_acm_bulkout_thread_stack); |
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#endif |
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#endif |
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#if defined(UX_DEVICE_CLASS_CDC_ACM_OWN_ENDPOINT_BUFFER) |
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/* Free the buffer for bulk endpoints. */ |
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_ux_utility_memory_free(cdc_acm -> ux_device_class_cdc_acm_endpoint_buffer); |
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#endif |
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/* Free the resources. */ |
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_ux_utility_memory_free(cdc_acm); |
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} |
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/* Return completion status. */ |
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return(UX_SUCCESS); |
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} |
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