text: /*
   * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice, this
   *    list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   *    this list of conditions and the following disclaimer in the documentation
   *    and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #pragma once
  
  #define ATA_SR_BSY 0x80
  #define ATA_SR_DRDY 0x40
  #define ATA_SR_DF 0x20
  #define ATA_SR_DSC 0x10
  #define ATA_SR_DRQ 0x08
  #define ATA_SR_CORR 0x04
  #define ATA_SR_IDX 0x02
  #define ATA_SR_ERR 0x01
  
  #define ATA_ER_BBK 0x80
  #define ATA_ER_UNC 0x40
  #define ATA_ER_MC 0x20
  #define ATA_ER_IDNF 0x10
  #define ATA_ER_MCR 0x08
  #define ATA_ER_ABRT 0x04
  #define ATA_ER_TK0NF 0x02
  #define ATA_ER_AMNF 0x01
  
  #define ATA_CMD_READ_PIO 0x20
  #define ATA_CMD_READ_PIO_EXT 0x24
  #define ATA_CMD_READ_DMA 0xC8
  #define ATA_CMD_READ_DMA_EXT 0x25
  #define ATA_CMD_WRITE_PIO 0x30
  #define ATA_CMD_WRITE_PIO_EXT 0x34
  #define ATA_CMD_WRITE_DMA 0xCA
  #define ATA_CMD_WRITE_DMA_EXT 0x35
  #define ATA_CMD_CACHE_FLUSH 0xE7
  #define ATA_CMD_CACHE_FLUSH_EXT 0xEA
  #define ATA_CMD_PACKET 0xA0
  #define ATA_CMD_IDENTIFY_PACKET 0xA1
  #define ATA_CMD_IDENTIFY 0xEC
  
  #define ATAPI_CMD_READ 0xA8
  #define ATAPI_CMD_EJECT 0x1B
  
  #define ATA_IDENT_DEVICETYPE 0
  #define ATA_IDENT_CYLINDERS 2
  #define ATA_IDENT_HEADS 6
  #define ATA_IDENT_SECTORS 12
  #define ATA_IDENT_SERIAL 20
  #define ATA_IDENT_MODEL 54
  #define ATA_IDENT_CAPABILITIES 98
  #define ATA_IDENT_FIELDVALID 106
  #define ATA_IDENT_MAX_LBA 120
  #define ATA_IDENT_COMMANDSETS 164
  #define ATA_IDENT_MAX_LBA_EXT 200
  
  #define ATA_USE_LBA_ADDRESSING (1 << 6)
  
  #define IDE_ATA 0x00
  #define IDE_ATAPI 0x01
  
  #define ATA_REG_DATA 0x00
  #define ATA_REG_ERROR 0x01
  #define ATA_REG_FEATURES 0x01
  #define ATA_REG_SECCOUNT0 0x02
  #define ATA_REG_LBA0 0x03
  #define ATA_REG_LBA1 0x04
  #define ATA_REG_LBA2 0x05
  #define ATA_REG_HDDEVSEL 0x06
  #define ATA_REG_COMMAND 0x07
  #define ATA_REG_STATUS 0x07
  #define ATA_REG_SECCOUNT1 0x08
  #define ATA_REG_LBA3 0x09
  #define ATA_REG_LBA4 0x0A
  #define ATA_REG_LBA5 0x0B
  #define ATA_CTL_CONTROL 0x00
  #define ATA_CTL_ALTSTATUS 0x00
  #define ATA_CTL_DEVADDRESS 0x01
  
  #define ATA_CAP_LBA 0x200
  