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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* Copyright (c) 2026-present Eclipse ThreadX contributors |
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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 HID 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_hid.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_hid_uninitialize PORTABLE C */ |
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/* 6.x */ |
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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 uninitializes the USB HID device. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* command Pointer to hid 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_thread_delete Remove storage thread. */ |
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/* _ux_utility_memory_free Free memory used by storage */ |
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/* _ux_utility_event_flags_delete Remove flag event structure */ |
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/* */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* USBX Source Code */ |
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/* */ |
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/**************************************************************************/ |
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UINT _ux_device_class_hid_uninitialize(UX_SLAVE_CLASS_COMMAND *command) |
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{ |
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UX_SLAVE_CLASS_HID *hid; |
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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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hid = (UX_SLAVE_CLASS_HID *) class_ptr -> ux_slave_class_instance; |
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/* Sanity check. */ |
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✓✗ |
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if (hid != UX_NULL) |
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{ |
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#if !defined(UX_DEVICE_STANDALONE) |
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/* Remove HID thread. */ |
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_ux_device_thread_delete(&class_ptr -> ux_slave_class_thread); |
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/* Remove the thread used by HID. */ |
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_ux_utility_memory_free(class_ptr -> ux_slave_class_thread_stack); |
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/* Delete the event flag group for the hid class. */ |
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_ux_device_event_flags_delete(&hid -> ux_device_class_hid_event_flags_group); |
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#endif |
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/* Free memory for the array. */ |
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#if (UX_DEVICE_ENDPOINT_BUFFER_OWNER == 1) && defined(UX_DEVICE_CLASS_HID_ZERO_COPY) |
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_ux_utility_memory_free(hid -> ux_device_class_hid_event_array -> ux_device_class_hid_event_buffer); |
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#endif |
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_ux_utility_memory_free(hid -> ux_device_class_hid_event_array); |
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#if defined(UX_DEVICE_CLASS_HID_INTERRUPT_OUT_SUPPORT) |
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#if !defined(UX_DEVICE_STANDALONE) |
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/* Free read mutex. */ |
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_ux_device_mutex_delete(&hid -> ux_device_class_hid_read_mutex); |
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#endif |
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/* Uninitialize receiver. */ |
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if (hid -> ux_device_class_hid_receiver) |
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hid -> ux_device_class_hid_receiver -> |
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ux_device_class_hid_receiver_uninitialize(hid -> ux_device_class_hid_receiver); |
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#endif |
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#if defined(UX_DEVICE_CLASS_HID_OWN_ENDPOINT_BUFFER) |
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_ux_utility_memory_free(hid -> ux_device_class_hid_endpoint_buffer); |
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#endif |
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/* Free the resources. */ |
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_ux_utility_memory_free(hid); |
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} |
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/* Return completion status. */ |
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return(UX_SUCCESS); |
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} |