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/***************************************************************************
* 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 */
/** */
/** Device CCID Class */
/** */
/**************************************************************************/
/**************************************************************************/
#define UX_SOURCE_CODE
/* Include necessary system files. */
#include "ux_api.h"
#include "ux_device_class_ccid.h"
#include "ux_device_stack.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_device_class_ccid_time_extension PORTABLE C */
/* 6.3.0 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function sends bulk IN time_extension of the USB CCID device. */
/* */
/* INPUT */
/* */
/* ccid Pointer to ccid instance */
/* slot Slot to extend time */
/* wt BWT (T=1) or WWT (T=0) */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* */
/* CALLED BY */
/* */
/* Application */
/* */
/**************************************************************************/
UINT _ux_device_class_ccid_time_extension(UX_DEVICE_CLASS_CCID *ccid, ULONG slot, ULONG wt)
{
UX_SLAVE_ENDPOINT *endpoint;
UX_SLAVE_TRANSFER *transfer;
UX_DEVICE_CLASS_CCID_SLOT *ccid_slot;
UX_DEVICE_CLASS_CCID_RUNNER *runner;
UCHAR *rsp, *runner_rsp;
UINT status;
/* Get slot. */
ccid_slot = ccid -> ux_device_class_ccid_slots;
ccid_slot += slot;
/* Check slot state. */
if ((signed char)ccid_slot -> ux_device_class_ccid_slot_runner < 0)
return(UX_INVALID_STATE);
/* Get runner. */
runner = ccid -> ux_device_class_ccid_runners;
runner += ccid_slot -> ux_device_class_ccid_slot_runner;
/* Get bulk IN endpoint. */
endpoint = ccid -> ux_device_class_ccid_endpoint_in;
/* Get transfer request. */
transfer = &endpoint -> ux_slave_endpoint_transfer_request;
/* Lock bulk IN. */
_ux_device_mutex_on(&ccid -> ux_device_class_ccid_response_mutex);
/* Get response buffer. */
rsp = transfer -> ux_slave_transfer_request_data_pointer;
runner_rsp = runner -> ux_device_class_ccid_runner_response;
/* Fill response. */
rsp[UX_DEVICE_CLASS_CCID_OFFSET_MESSAGE_TYPE] = runner_rsp[UX_DEVICE_CLASS_CCID_OFFSET_MESSAGE_TYPE];
rsp[UX_DEVICE_CLASS_CCID_OFFSET_LENGTH] = 0;
rsp[UX_DEVICE_CLASS_CCID_OFFSET_LENGTH+1] = 0;
rsp[UX_DEVICE_CLASS_CCID_OFFSET_LENGTH+2] = 0;
rsp[UX_DEVICE_CLASS_CCID_OFFSET_LENGTH+3] = 0;
rsp[UX_DEVICE_CLASS_CCID_OFFSET_SLOT] = runner_rsp[UX_DEVICE_CLASS_CCID_OFFSET_SLOT];
rsp[UX_DEVICE_CLASS_CCID_OFFSET_SEQ] = runner_rsp[UX_DEVICE_CLASS_CCID_OFFSET_SEQ];
rsp[UX_DEVICE_CLASS_CCID_OFFSET_STATUS] = runner_rsp[UX_DEVICE_CLASS_CCID_OFFSET_STATUS] |
UX_DEVICE_CLASS_CCID_SLOT_STATUS_TIME_EXTENSION;
rsp[UX_DEVICE_CLASS_CCID_OFFSET_ERROR] = (UCHAR)wt;
rsp[UX_DEVICE_CLASS_CCID_OFFSET_CHAIN_PARAMETER] = 0;
rsp[UX_DEVICE_CLASS_CCID_OFFSET_CHAIN_PARAMETER+1] = 0;
/* Transfer data. */
status = _ux_device_stack_transfer_request(transfer,
UX_DEVICE_CLASS_CCID_MESSAGE_HEADER_LENGTH,
UX_DEVICE_CLASS_CCID_MESSAGE_HEADER_LENGTH);
/* Unlock bulk IN. */
_ux_device_mutex_off(&ccid -> ux_device_class_ccid_response_mutex);
/* Return transfer status. */
return(status);
}
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _uxe_device_class_ccid_icc_insert PORTABLE C */
/* 6.3.0 */
/* AUTHOR */
/* */
/* Yajun Xia, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function checks errors in CCID device bulk IN time_extension */
/* send function. */
/* */
/* INPUT */
/* */
/* ccid Pointer to ccid instance */
/* slot Slot to extend time */
/* wt BWT (T=1) or WWT (T=0) */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_device_class_ccid_time_extension CCID device bulk IN */
/* time_extension send function. */
/* */
/* CALLED BY */
/* */
/* Application */
/* */
/**************************************************************************/
UINT _uxe_device_class_ccid_time_extension(UX_DEVICE_CLASS_CCID *ccid, ULONG slot, ULONG wt)
{
/* Sanity checks. */
if ((ccid == UX_NULL) || (slot >= ccid -> ux_device_class_ccid_parameter.ux_device_class_ccid_max_n_slots))
return(UX_INVALID_PARAMETER);
/* Call actual function. */
return(_ux_device_class_ccid_time_extension(ccid, slot, wt));
}
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