/*************************************************************************** * Copyright (c) 2024 Microsoft Corporation * Copyright (c) 2026-present Eclipse ThreadX contributors * * This program and the accompanying materials are made available under the * terms of the MIT License which is available at * https://opensource.org/licenses/MIT. * * SPDX-License-Identifier: MIT **************************************************************************/ /**************************************************************************/ /**************************************************************************/ /** */ /** USBX Component */ /** */ /** OHCI Controller Driver */ /** */ /**************************************************************************/ /**************************************************************************/ /* Include necessary system files. */ #define UX_SOURCE_CODE #include "ux_api.h" #include "ux_hcd_ohci.h" #include "ux_host_stack.h" /**************************************************************************/ /* */ /* FUNCTION RELEASE */ /* */ /* _ux_hcd_ohci_endpoint_reset PORTABLE C */ /* 6.1.2 */ /* AUTHOR */ /* */ /* Chaoqiong Xiao, Microsoft Corporation */ /* */ /* DESCRIPTION */ /* */ /* This function will reset an endpoint. */ /* */ /* INPUT */ /* */ /* hcd_ohci Pointer to OHCI HCD */ /* endpoint Pointer to endpoint */ /* */ /* OUTPUT */ /* */ /* Completion Status */ /* */ /* CALLS */ /* */ /* None */ /* */ /* CALLED BY */ /* */ /* OHCI Controller Driver */ /* */ /**************************************************************************/ UINT _ux_hcd_ohci_endpoint_reset(UX_HCD_OHCI *hcd_ohci, UX_ENDPOINT *endpoint) { UX_OHCI_ED *ed; ULONG td_value; UX_PARAMETER_NOT_USED(hcd_ohci); /* From the endpoint container fetch the OHCI ED descriptor. */ ed = (UX_OHCI_ED *) endpoint -> ux_endpoint_ed; /* Reset the data0/data1 toggle bit in the Head TD. */ td_value = (ULONG) ed -> ux_ohci_ed_head_td; td_value &= UX_OHCI_ED_MASK_TD; ed -> ux_ohci_ed_head_td = (UX_OHCI_TD *) td_value; /* This operation never fails! */ return(UX_SUCCESS); }