src/class/printer/printer.h

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2026 Ha Thach (tinyusb.org)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * This file is part of the TinyUSB stack.
 */

#ifndef TUSB_PRINTER_H_
#define TUSB_PRINTER_H_

#include "common/tusb_common.h"

#ifdef __cplusplus
extern "C" {
#endif

/// Printer Class Specific Control Request
typedef enum {
  TUSB_PRINTER_REQUEST_GET_DEVICE_ID   = 0x00, ///< Get device ID
  TUSB_PRINTER_REQUEST_GET_PORT_STATUS = 0x01, ///< Get port status
  TUSB_PRINTER_REQUEST_SOFT_RESET      = 0x02, ///< Soft reset
} tusb_printer_request_type_t;

/// Printer Port Status (returned by GET_PORT_STATUS request)
/// USB Printer Class spec 1.1, Section 4.2
typedef union TU_ATTR_PACKED {
  uint8_t status;
  struct TU_ATTR_PACKED {
    uint8_t reserved0   : 3; ///< Reserved (bits 0-2)
    uint8_t not_error   : 1; ///< 1 = no error, 0 = error
    uint8_t selected    : 1; ///< 1 = selected (online), 0 = not selected
    uint8_t paper_empty : 1; ///< 1 = paper empty, 0 = paper not empty
    uint8_t reserved6   : 2; ///< Reserved (bits 6-7)
  } status_bm;
} tusb_printer_port_status_t;

TU_VERIFY_STATIC(sizeof(tusb_printer_port_status_t) == 1, "size is not correct");

#ifdef __cplusplus
}
#endif

#endif