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/***************************************************************************/
/* Copyright (c) 2024 Microsoft Corporation */
/* Copyright (c) 2026 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 */
/***************************************************************************/
#include <stdio.h>
#include "tx_api.h"
#include "ux_api.h"
#include "ux_system.h"
#include "ux_utility.h"
#include "ux_device_stack.h"
#include "ux_test.h"
#include "ux_host_class_printer.h"
#include "ux_device_class_dummy_printer.h"
#define PORT_START 1
#define PORT_STATUS_PORT_POWER_BIT 8
UCHAR _ux_device_class_printer_name[] = "_ux_device_class_printer";
static VOID _ux_device_class_printer_initialize(UX_SLAVE_CLASS_COMMAND *command)
{
UX_SLAVE_CLASS *printer_class = (UX_SLAVE_CLASS *)command->ux_slave_class_command_class_ptr;
UX_DEVICE_CLASS_PRINTER_PARAMS *printer_params = (UX_DEVICE_CLASS_PRINTER_PARAMS *)command->ux_slave_class_command_parameter;
UX_DEVICE_CLASS_PRINTER *printer;
printer = (UX_DEVICE_CLASS_PRINTER *) _ux_utility_memory_allocate(UX_NO_ALIGN, UX_REGULAR_MEMORY, sizeof(UX_DEVICE_CLASS_PRINTER));
UX_TEST_ASSERT(printer != UX_NULL);
printer_class->ux_slave_class_instance = printer;
/* Save parameters. */
_ux_utility_memory_copy(&printer->params, printer_params, sizeof(*printer_params));
}
static VOID _ux_device_class_printer_uninitialize(UX_SLAVE_CLASS_COMMAND *command)
{
UX_DEVICE_CLASS_PRINTER *printer = NULL;
UX_SLAVE_CLASS *class;
/* Get the class container. */
class = command -> ux_slave_class_command_class_ptr;
/* Get the class instance in the container. */
printer = (UX_DEVICE_CLASS_PRINTER *) class -> ux_slave_class_instance;
if (printer != UX_NULL)
_ux_utility_memory_free(printer);
return;
}
static UINT _ux_device_class_printer_activate(UX_SLAVE_CLASS_COMMAND *command)
{
UX_SLAVE_CLASS *printer_class = command->ux_slave_class_command_class_ptr;
UX_SLAVE_INTERFACE *interface = (UX_SLAVE_INTERFACE *)command->ux_slave_class_command_interface;
UX_SLAVE_ENDPOINT *endpoint;
UX_DEVICE_CLASS_PRINTER *printer;
UINT i;
printer = (UX_DEVICE_CLASS_PRINTER *)printer_class->ux_slave_class_instance;
interface -> ux_slave_interface_class_instance = (VOID *)printer;
printer -> interface = interface;
/* We need to get the bulk endpoints. */
printer -> bulk_in_endpoint = UX_NULL;
printer -> bulk_out_endpoint = UX_NULL;
endpoint = interface->ux_slave_interface_first_endpoint;
while (endpoint)
{
/* Is this bulk endpoint? */
if (endpoint->ux_slave_endpoint_descriptor.bmAttributes == UX_BULK_ENDPOINT)
{
/* Is this endpoint IN? */
if (endpoint->ux_slave_endpoint_descriptor.bEndpointAddress & UX_ENDPOINT_IN)
{
printer -> bulk_in_endpoint = endpoint;
if (printer -> bulk_out_endpoint)
break;
}
else
{
printer -> bulk_out_endpoint = endpoint;
if (printer -> bulk_in_endpoint)
break;
}
}
endpoint = endpoint->ux_slave_endpoint_next_endpoint;
}
/* Endpoints must be available. */
if (printer->bulk_in_endpoint == UX_NULL || printer->bulk_out_endpoint == UX_NULL)
return(UX_ERROR);
/* Invoke activate callback. */
if (printer->params.instance_activate)
{
printer->params.instance_activate(printer);
}
return(UX_SUCCESS);
}
static VOID _ux_device_class_printer_deactivate(UX_SLAVE_CLASS_COMMAND *command)
{
UX_SLAVE_CLASS *printer_class = command->ux_slave_class_command_class_ptr;
UX_DEVICE_CLASS_PRINTER *printer;
printer = (UX_DEVICE_CLASS_PRINTER *)printer_class->ux_slave_class_instance;
_ux_device_stack_transfer_all_request_abort(printer->bulk_in_endpoint, UX_TRANSFER_BUS_RESET);
_ux_device_stack_transfer_all_request_abort(printer->bulk_out_endpoint, UX_TRANSFER_BUS_RESET);
if (printer->params.instance_deactivate)
{
printer->params.instance_deactivate(printer);
}
}
static VOID _ux_device_class_printer_change(UX_SLAVE_CLASS_COMMAND *command)
{
UX_TEST_ASSERT(0);
}
static UINT _configure_index_value(ULONG index)
{
UCHAR *descriptor;
ULONG configuration_index;
ULONG length;
UCHAR type;
descriptor = _ux_system_slave->ux_system_slave_device_framework;
configuration_index = 0;
while(1)
{
length = descriptor[0];
type = descriptor[1];
if (type == UX_CONFIGURATION_DESCRIPTOR_ITEM)
{
if (configuration_index == index)
return(descriptor[5]);
/* Length is total length. */
length = _ux_utility_short_get(&descriptor[2]);
/* Next configuration. */
configuration_index ++;
}
/* Next descriptor. */
descriptor += length;
}
}
static UINT _ux_device_class_printer_control_request(UX_SLAVE_CLASS_COMMAND *command)
{
UCHAR *setup_data;
UCHAR bmRequestType;
UCHAR bRequest;
USHORT wValue;
USHORT wIndex;
USHORT wLength;
UCHAR port_index;
UCHAR descriptor_type;
UCHAR *data_ptr;
UX_SLAVE_DEVICE *device;
UX_SLAVE_TRANSFER *transfer_request;
UX_SLAVE_CLASS *printer_class = (UX_SLAVE_CLASS *)command->ux_slave_class_command_class_ptr;
UX_DEVICE_CLASS_PRINTER *printer = (UX_DEVICE_CLASS_PRINTER *)printer_class->ux_slave_class_instance;
UX_SLAVE_INTERFACE *interface=printer->interface;
ULONG length;
/* Get the pointer to the device. */
device = &_ux_system_slave->ux_system_slave_device;
/* Get the pointer to the transfer request associated with the control endpoint. */
transfer_request = &device->ux_slave_device_control_endpoint.ux_slave_endpoint_transfer_request;
setup_data = transfer_request->ux_slave_transfer_request_setup;
bmRequestType = setup_data[0];
bRequest = setup_data[1];
wValue = (USHORT)_ux_utility_short_get(&setup_data[2]);
wIndex = (USHORT)_ux_utility_short_get(&setup_data[4]);
wLength = (USHORT)_ux_utility_short_get(&setup_data[6]);
data_ptr = transfer_request->ux_slave_transfer_request_data_pointer;
switch (bRequest)
{
case UX_HOST_CLASS_PRINTER_GET_DEVICE_ID:
/* Check configuration INDEX (wValue), interface (HIGH wIndex), alt (LOW wIndex). */
if (_configure_index_value(wValue) != interface->ux_slave_interface_class->ux_slave_class_configuration_number ||
setup_data[4] != interface->ux_slave_interface_descriptor.bAlternateSetting ||
setup_data[5] != interface->ux_slave_interface_descriptor.bInterfaceNumber)
return(UX_ERROR);
/* Send device ID. */
transfer_request->ux_slave_transfer_request_phase = UX_TRANSFER_PHASE_DATA_OUT;
length = UX_MIN(UX_SLAVE_REQUEST_CONTROL_MAX_LENGTH, wLength);
length = UX_MIN(length, printer->params.device_id_length + 2);
if (length)
{
_ux_utility_short_put_big_endian(data_ptr, length - 2);
_ux_utility_memory_copy(data_ptr + 2, printer->params.device_id, length - 2);
}
return _ux_device_stack_transfer_request(transfer_request, length, wLength);
case UX_HOST_CLASS_PRINTER_GET_STATUS:
/* Check interface number. */
if (wIndex != interface->ux_slave_interface_descriptor.bInterfaceNumber)
return(UX_ERROR);
/* Send status. */
transfer_request->ux_slave_transfer_request_phase = UX_TRANSFER_PHASE_DATA_OUT;
*data_ptr = printer->port_status;
return _ux_device_stack_transfer_request(transfer_request, 1, wLength);
case UX_HOST_CLASS_PRINTER_SOFT_RESET:
/* Check interface number. */
if (wIndex != interface->ux_slave_interface_descriptor.bInterfaceNumber)
return(UX_ERROR);
/* Execute soft reset. */
_ux_device_stack_transfer_all_request_abort(printer->bulk_in_endpoint, UX_TRANSFER_BUS_RESET);
_ux_device_stack_transfer_all_request_abort(printer->bulk_out_endpoint, UX_TRANSFER_BUS_RESET);
printer->soft_reset = UX_TRUE;
return(UX_SUCCESS);
default:
UX_TEST_ASSERT(0);
break;
}
}
UINT _ux_device_class_printer_entry(UX_SLAVE_CLASS_COMMAND *command)
{
switch(command -> ux_slave_class_command_request)
{
case UX_SLAVE_CLASS_COMMAND_INITIALIZE:
_ux_device_class_printer_initialize(command);
break;
case UX_SLAVE_CLASS_COMMAND_UNINITIALIZE:
_ux_device_class_printer_uninitialize(command);
break;
case UX_SLAVE_CLASS_COMMAND_QUERY:
/* For now, always return success. */
break;
case UX_SLAVE_CLASS_COMMAND_ACTIVATE:
return _ux_device_class_printer_activate(command);
case UX_SLAVE_CLASS_COMMAND_CHANGE:
UX_TEST_ASSERT(0);
break;
case UX_SLAVE_CLASS_COMMAND_DEACTIVATE:
_ux_device_class_printer_deactivate(command);
break;
case UX_SLAVE_CLASS_COMMAND_REQUEST:
return _ux_device_class_printer_control_request(command);
default:
UX_TEST_ASSERT(0);
break;
}
return(UX_SUCCESS);
}
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