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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 CDC Class */
/** */
/**************************************************************************/
/**************************************************************************/
#define UX_SOURCE_CODE
/* Include necessary system files. */
#include "ux_api.h"
#include "ux_device_class_pima.h"
#include "ux_device_stack.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_device_class_pima_activate PORTABLE C */
/* 6.3.0 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function activates the USB Pima device. */
/* */
/* INPUT */
/* */
/* command Pointer to pima command */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_device_thread_resume Resume thread */
/* */
/* CALLED BY */
/* */
/* USBX Source Code */
/* */
/**************************************************************************/
UINT _ux_device_class_pima_activate(UX_SLAVE_CLASS_COMMAND *command)
{
UX_SLAVE_INTERFACE *interface_ptr;
UX_SLAVE_CLASS *class_ptr;
UX_SLAVE_CLASS_PIMA *pima;
UX_SLAVE_ENDPOINT *endpoint_in;
UX_SLAVE_ENDPOINT *endpoint_out;
UX_SLAVE_ENDPOINT *endpoint_interrupt;
/* Get the class container. */
class_ptr = command -> ux_slave_class_command_class_ptr;
/* Store the class instance in the container. */
pima = (UX_SLAVE_CLASS_PIMA *) class_ptr -> ux_slave_class_instance;
/* Get the interface that owns this instance. */
interface_ptr = (UX_SLAVE_INTERFACE *) command -> ux_slave_class_command_interface;
/* Store the class instance into the interface. */
interface_ptr -> ux_slave_interface_class_instance = (VOID *)pima;
/* Now the opposite, store the interface in the class instance. */
pima -> ux_slave_class_pima_interface = interface_ptr;
/* Locate the endpoints. */
endpoint_in = interface_ptr -> ux_slave_interface_first_endpoint;
/* Check the endpoint direction, if IN we have the correct endpoint. */
if ((endpoint_in -> ux_slave_endpoint_descriptor.bEndpointAddress & UX_ENDPOINT_DIRECTION) == UX_ENDPOINT_OUT)
{
/* Wrong direction, we found the OUT endpoint first. */
endpoint_out = endpoint_in;
/* So the next endpoint has to be the IN endpoint. */
endpoint_in = endpoint_out -> ux_slave_endpoint_next_endpoint;
/* And the endpoint after that interrupt. */
endpoint_interrupt = endpoint_in -> ux_slave_endpoint_next_endpoint;
}
else
{
/* We found the endpoint IN first, so next endpoint is OUT. */
endpoint_out = endpoint_in -> ux_slave_endpoint_next_endpoint;
/* And the endpoint after that interrupt. */
endpoint_interrupt = endpoint_out -> ux_slave_endpoint_next_endpoint;
}
/* Save the endpoints in the pima instance. */
pima -> ux_device_class_pima_bulk_in_endpoint = endpoint_in;
pima -> ux_device_class_pima_bulk_out_endpoint = endpoint_out;
pima -> ux_device_class_pima_interrupt_endpoint = endpoint_interrupt;
#if UX_DEVICE_ENDPOINT_BUFFER_OWNER == 1
endpoint_in -> ux_slave_endpoint_transfer_request.ux_slave_transfer_request_data_pointer =
UX_DEVICE_CLASS_PIMA_BULKIN_BUFFER(pima);
endpoint_out -> ux_slave_endpoint_transfer_request.ux_slave_transfer_request_data_pointer =
UX_DEVICE_CLASS_PIMA_BULKOUT_BUFFER(pima);
if (endpoint_interrupt)
endpoint_interrupt -> ux_slave_endpoint_transfer_request.
ux_slave_transfer_request_data_pointer =
UX_DEVICE_CLASS_PIMA_INTERRUPTIN_BUFFER(pima);
#endif
/* Initialize status code. */
pima -> ux_device_class_pima_state = UX_DEVICE_CLASS_PIMA_PHASE_IDLE;
pima -> ux_device_class_pima_session_id = 0;
pima -> ux_device_class_pima_device_status = UX_DEVICE_CLASS_PIMA_RC_OK;
/* Resume thread. */
_ux_device_thread_resume(&class_ptr -> ux_slave_class_thread);
/* If there is a activate function call it. */
if (pima -> ux_device_class_pima_instance_activate != UX_NULL)
{
/* Invoke the application. */
pima -> ux_device_class_pima_instance_activate(pima);
}
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_DEVICE_CLASS_PIMA_ACTIVATE, pima, 0, 0, 0, UX_TRACE_DEVICE_CLASS_EVENTS, 0, 0)
/* If trace is enabled, register this object. */
UX_TRACE_OBJECT_REGISTER(UX_TRACE_DEVICE_OBJECT_TYPE_INTERFACE, pima, 0, 0, 0)
/* Return completion status. */
return(UX_SUCCESS);
}
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