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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 Printer Class */
/** */
/**************************************************************************/
/**************************************************************************/
#define UX_SOURCE_CODE
/* Include necessary system files. */
#include "ux_api.h"
#include "ux_device_class_printer.h"
#include "ux_device_stack.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_device_class_printer_activate PORTABLE C */
/* 6.3.0 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function initializes the USB Printer device. */
/* */
/* INPUT */
/* */
/* command Pointer to printer command */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* (ux_device_class_printer_instance_deactivate) */
/* Notify activation */
/* */
/* CALLED BY */
/* */
/* Device Printer Class */
/* */
/**************************************************************************/
UINT _ux_device_class_printer_activate(UX_SLAVE_CLASS_COMMAND *command)
{
UX_SLAVE_INTERFACE *printer_interface;
UX_SLAVE_CLASS *printer_class;
UX_DEVICE_CLASS_PRINTER *printer;
UX_SLAVE_ENDPOINT *endpoint;
/* Get the class container. */
printer_class = command -> ux_slave_class_command_class_ptr;
/* Get the class instance in the container. */
printer = (UX_DEVICE_CLASS_PRINTER *) printer_class -> ux_slave_class_instance;
/* Get the interface that owns this instance. */
printer_interface = (UX_SLAVE_INTERFACE *) command -> ux_slave_class_command_interface;
/* Store the class instance into the interface. */
printer_interface -> ux_slave_interface_class_instance = (VOID *)printer;
/* Now the opposite, store the interface in the class instance. */
printer -> ux_device_class_printer_interface = printer_interface;
/* Save endpoints for future use. */
printer -> ux_device_class_printer_endpoint_in = UX_NULL;
printer -> ux_device_class_printer_endpoint_out = UX_NULL;
endpoint = printer_interface -> ux_slave_interface_first_endpoint;
while(endpoint)
{
if (endpoint -> ux_slave_endpoint_descriptor.bmAttributes == UX_BULK_ENDPOINT)
{
if (endpoint -> ux_slave_endpoint_descriptor.bEndpointAddress & UX_ENDPOINT_IN)
{
printer -> ux_device_class_printer_endpoint_in = endpoint;
#if defined(UX_DEVICE_CLASS_PRINTER_OWN_ENDPOINT_BUFFER)
endpoint -> ux_slave_endpoint_transfer_request.ux_slave_transfer_request_data_pointer =
UX_DEVICE_CLASS_PRINTER_WRITE_BUFFER(printer);
#endif
if (printer -> ux_device_class_printer_endpoint_out)
break;
}
else
{
printer -> ux_device_class_printer_endpoint_out = endpoint;
#if defined(UX_DEVICE_CLASS_PRINTER_OWN_ENDPOINT_BUFFER)
endpoint -> ux_slave_endpoint_transfer_request.ux_slave_transfer_request_data_pointer =
UX_DEVICE_CLASS_PRINTER_READ_BUFFER(printer);
#endif
if (printer -> ux_device_class_printer_endpoint_in)
break;
}
}
/* Next endpoint. */
endpoint = endpoint -> ux_slave_endpoint_next_endpoint;
}
/* Check error, there must be Bulk OUT. */
if (printer -> ux_device_class_printer_endpoint_out == UX_NULL)
return(UX_DESCRIPTOR_CORRUPTED);
/* Initialize port status.
Benign status of "Paper Not Empty", "Selected", and "No Error". */
printer -> ux_device_class_printer_port_status = UX_DEVICE_CLASS_PRINTER_SELECT |
UX_DEVICE_CLASS_PRINTER_NOT_ERROR;
/* If there is a activate function call it. */
if (printer -> ux_device_class_printer_parameter.ux_device_class_printer_instance_activate != UX_NULL)
{
/* Invoke the application. */
printer -> ux_device_class_printer_parameter.ux_device_class_printer_instance_activate(printer);
}
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_DEVICE_CLASS_PRINTER_ACTIVATE, printer, 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, printer, 0, 0, 0)
/* Return completion status. */
return(UX_SUCCESS);
}
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