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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 */
/** */
/** Slave Simulator Controller Driver */
/** */
/**************************************************************************/
/**************************************************************************/
#define UX_SOURCE_CODE
/* Include necessary system files. */
#include "ux_api.h"
#include "ux_dcd_sim_slave.h"
#include "ux_hcd_sim_host.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_dcd_sim_slave_initialize PORTABLE C */
/* 6.1.6 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function initializes the USB simulation slave controller. */
/* */
/* INPUT */
/* */
/* None */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_utility_memory_allocate Allocate memory */
/* */
/* CALLED BY */
/* */
/* Slave Simulator Controller Driver */
/* */
/**************************************************************************/
UINT _ux_dcd_sim_slave_initialize(VOID)
{
UX_SLAVE_DCD *dcd;
UX_DCD_SIM_SLAVE *dcd_sim_slave;
UX_HCD *hcd;
/* Get the pointer to the DCD. */
dcd = &_ux_system_slave -> ux_system_slave_dcd;
/* The controller initialized here is of Slave simulation type. */
dcd -> ux_slave_dcd_controller_type = UX_DCD_SIM_SLAVE_SLAVE_CONTROLLER;
/* Allocate memory for this Slave simulation DCD instance. */
dcd_sim_slave = _ux_utility_memory_allocate(UX_NO_ALIGN, UX_REGULAR_MEMORY, sizeof(UX_DCD_SIM_SLAVE));
/* Check if memory was properly allocated. */
if(dcd_sim_slave == UX_NULL)
return(UX_MEMORY_INSUFFICIENT);
/* Set the pointer to the Slave simulation DCD. */
dcd -> ux_slave_dcd_controller_hardware = (VOID *) dcd_sim_slave;
/* Set the generic DCD owner for the Slave simulation DCD. */
dcd_sim_slave -> ux_dcd_sim_slave_dcd_owner = dcd;
/* Initialize the function collector for this DCD. */
dcd -> ux_slave_dcd_function = _ux_dcd_sim_slave_function;
/* Link the HCD (always first registered one) to DCD driver. */
if (_ux_system_host)
{
hcd = _ux_system_host -> ux_system_host_hcd_array;
if (hcd)
{
dcd_sim_slave -> ux_dcd_sim_slave_hcd = (VOID *)hcd;
}
}
/* Set system to full speed by default. */
_ux_system_slave -> ux_system_slave_speed = UX_FULL_SPEED_DEVICE;
/* Set the state of the controller to OPERATIONAL now. */
dcd -> ux_slave_dcd_status = UX_DCD_STATUS_OPERATIONAL;
/* This operation completed with success. */
return(UX_SUCCESS);
}
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