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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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/** Host Stack */ |
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/** */ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/* Include necessary system files. */ |
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#define UX_SOURCE_CODE |
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#include "ux_api.h" |
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#include "ux_host_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_host_stack_endpoint_instance_delete PORTABLE C */ |
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/* 6.1.10 */ |
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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 will delete an endpoint instance. It does not delete */ |
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/* the endpoint container but it removes the HCD endpoint and reclaims */ |
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/* the bandwidth. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* endpoint Endpoint to delete */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* None */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* _ux_host_stack_bandwidth_release Release bandwidth */ |
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/* _ux_utility_semaphore_delete Semaphore delete */ |
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/* (ux_hcd_entry_function) HCD entry function */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* USBX Components */ |
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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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/* optimized based on compile */ |
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/* definitions, */ |
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/* resulting in version 6.1 */ |
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/* 06-02-2021 Chaoqiong Xiao Modified comment(s), */ |
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/* fixed trace enabled error, */ |
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/* resulting in version 6.1.7 */ |
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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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/* */ |
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/**************************************************************************/ |
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VOID _ux_host_stack_endpoint_instance_delete(UX_ENDPOINT *endpoint) |
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{ |
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UX_HCD *hcd; |
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/* Obtain the HCD for this endpoint. */ |
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hcd = UX_DEVICE_HCD_GET(endpoint -> ux_endpoint_device); |
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/* If trace is enabled, insert this event into the trace buffer. */ |
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UX_TRACE_IN_LINE_INSERT(UX_TRACE_HOST_STACK_ENDPOINT_INSTANCE_DELETE, endpoint -> ux_endpoint_device, endpoint, 0, 0, UX_TRACE_HOST_STACK_EVENTS, 0, 0) |
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/* Ensure the endpoint had its physical ED allocated. */ |
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✓✓ |
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if (endpoint -> ux_endpoint_ed != UX_NULL) |
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{ |
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/* Destroy this endpoint. */ |
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hcd -> ux_hcd_entry_function(hcd, UX_HCD_DESTROY_ENDPOINT, (VOID *) endpoint); |
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/* Free the semaphore previously attached to the transfer_request of this endpoint. */ |
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_ux_host_semaphore_delete(&endpoint -> ux_endpoint_transfer_request.ux_transfer_request_semaphore); |
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} |
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/* If the endpoint requested guaranteed bandwidth, free it now. */ |
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✓✓ |
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switch ((endpoint -> ux_endpoint_descriptor.bmAttributes) & UX_MASK_ENDPOINT_TYPE) |
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{ |
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case UX_CONTROL_ENDPOINT: |
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case UX_BULK_ENDPOINT: |
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break; |
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default: |
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/* Reclaim its bandwidth. */ |
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_ux_host_stack_bandwidth_release(hcd, endpoint); |
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} |
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/* If trace is enabled, register this object. */ |
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UX_TRACE_OBJECT_UNREGISTER(endpoint); |
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/* Return to caller. */ |
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return; |
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} |
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