/*!
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\file printer_core.h
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\brief the header file of USB printer device class core functions
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\version 2020-08-01, V3.0.0, firmware for GD32F30x
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*/
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/*
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Copyright (c) 2020, GigaDevice Semiconductor Inc.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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OF SUCH DAMAGE.
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*/
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#ifndef __PRINTER_CORE_H
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#define __PRINTER_CORE_H
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#include "usbd_enum.h"
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#include "usb_ch9_std.h"
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/* USB printing device class code */
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#define USB_CLASS_PRINTER 0x07U
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/* printing device subclass code */
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#define USB_SUBCLASS_PRINTER 0x01U
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/* printing device protocol code */
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#define PROTOCOL_UNIDIRECTIONAL_ITF 0x01U
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#define PROTOCOL_BI_DIRECTIONAL_ITF 0x02U
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#define PROTOCOL_1284_4_ITF 0x03U
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#define PROTOCOL_VENDOR 0xFFU
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#define DEVICE_ID_LEN 103U
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#define USB_PRINTER_CONFIG_DESC_LEN 32U
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/* printing device specific-class request */
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#define GET_DEVICE_ID 0x00U
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#define GET_PORT_STATUS 0x01U
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#define SOFT_RESET 0x02U
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#pragma pack(1)
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/* USB configuration descriptor struct */
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typedef struct
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{
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usb_desc_config config;
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usb_desc_itf printer_itf;
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usb_desc_ep printer_epin;
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usb_desc_ep printer_epout;
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} usb_printer_desc_config_set;
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#pragma pack()
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extern usb_desc printer_desc;
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extern usb_class_core usbd_printer_cb;
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#endif /* __PRINTER_CORE_H */
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