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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 */
/** */
/** Host Sierra Wireless AR module class */
/** */
/**************************************************************************/
/**************************************************************************/
/* Include necessary system files. */
#define UX_SOURCE_CODE
#include "ux_api.h"
#include "ux_host_class_swar.h"
#include "ux_host_stack.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_host_class_swar_configure PORTABLE C */
/* 6.3.0 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function calls the USBX stack to do a SET_CONFIGURATION to the */
/* swar. Once the swar is configured, its interface will be */
/* activated. The bulk endpoints enumerated(1 IN, 1 OUT ). */
/* */
/* INPUT */
/* */
/* swar Pointer to swar class */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_host_stack_configuration_interface_get Get interface */
/* _ux_host_stack_device_configuration_get Get configuration */
/* _ux_host_stack_device_configuration_select Select configuration */
/* */
/* CALLED BY */
/* */
/* _ux_host_class_swar_activate swar class activate */
/* */
/**************************************************************************/
UINT _ux_host_class_swar_configure(UX_HOST_CLASS_SWAR *swar)
{
UINT status;
UX_CONFIGURATION *configuration;
#if UX_MAX_DEVICES > 1
UX_DEVICE *parent_device;
#endif
/* If the device has been configured already, we don't need to do it
again. */
if (swar -> ux_host_class_swar_device -> ux_device_state == UX_DEVICE_CONFIGURED)
return(UX_SUCCESS);
/* A swar normally has one configuration. So retrieve the 1st configuration
only. */
status = _ux_host_stack_device_configuration_get(swar -> ux_host_class_swar_device, 0, &configuration);
if (status != UX_SUCCESS)
{
/* Error trap. */
_ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_CONFIGURATION_HANDLE_UNKNOWN);
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_CONFIGURATION_HANDLE_UNKNOWN, swar -> ux_host_class_swar_device, 0, 0, UX_TRACE_ERRORS, 0, 0)
return(UX_CONFIGURATION_HANDLE_UNKNOWN);
}
#if UX_MAX_DEVICES > 1
/* Check the swar power source and check the parent power source for
incompatible connections. */
if (swar -> ux_host_class_swar_device -> ux_device_power_source == UX_DEVICE_BUS_POWERED)
{
/* Get parent device pointer. */
parent_device = swar -> ux_host_class_swar_device -> ux_device_parent;
/* If the device is NULL, the parent is the root swar and we don't have to worry
if the parent is not the root swar, check for its power source. */
if ((parent_device != UX_NULL) && (parent_device -> ux_device_power_source == UX_DEVICE_BUS_POWERED))
{
/* Error trap. */
_ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_CONNECTION_INCOMPATIBLE);
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_CONNECTION_INCOMPATIBLE, swar, 0, 0, UX_TRACE_ERRORS, 0, 0)
return(UX_CONNECTION_INCOMPATIBLE);
}
}
#endif
/* We have the valid configuration. Ask the USBX stack to set this configuration. */
status = _ux_host_stack_device_configuration_select(configuration);
if (status != UX_SUCCESS)
return(status);
/* If the operation went well, the swar default alternate setting for the swar interface is
active. We have to memorize the data interface since the bulk in/out endpoints are hooked to it. */
status = _ux_host_stack_configuration_interface_get(configuration, UX_HOST_CLASS_SWAR_DATA_INTERFACE, 0, &swar -> ux_host_class_swar_interface);
/* Return completion status. */
return(status);
}
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