/** @file
  This file contains just some basic definitions that are needed by drivers
  that dealing with ATA/ATAPI interface.

Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under 
the terms and conditions of the BSD License that accompanies this distribution.  
The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.                                          
    
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

#ifndef _ATAPI_H_
#define _ATAPI_H_

#pragma pack(1)

///
/// ATA5_IDENTIFY_DATA is defined in ATA-5.
/// (This structure is provided mainly for backward-compatibility support.
/// Old drivers may reference fields that are marked "obsolete" in 
/// ATA_IDENTIFY_DATA, which currently conforms to ATA-8.) 
///
typedef struct {    
  UINT16  config;             ///< General Configuration.
  UINT16  cylinders;          ///< Number of Cylinders.
  UINT16  reserved_2; 
  UINT16  heads;              ///< Number of logical heads. 
  UINT16  vendor_data1; 
  UINT16  vendor_data2; 
  UINT16  sectors_per_track; 
  UINT16  vendor_specific_7_9[3]; 
  CHAR8   SerialNo[20];       ///< ASCII  
  UINT16  vendor_specific_20_21[2];  
  UINT16  ecc_bytes_available;    
  CHAR8   FirmwareVer[8];     ///< ASCII  
  CHAR8   ModelName[40];      ///< ASCII    
  UINT16  multi_sector_cmd_max_sct_cnt; 
  UINT16  reserved_48; 
  UINT16  capabilities; 
  UINT16  reserved_50;     
  UINT16  pio_cycle_timing;    
  UINT16  reserved_52;             
  UINT16  field_validity;     
  UINT16  current_cylinders; 
  UINT16  current_heads; 
  UINT16  current_sectors;    
  UINT16  CurrentCapacityLsb; 
  UINT16  CurrentCapacityMsb;     
  UINT16  reserved_59;     
  UINT16  user_addressable_sectors_lo; 
  UINT16  user_addressable_sectors_hi; 
  UINT16  reserved_62;     
  UINT16  multi_word_dma_mode;    
  UINT16  advanced_pio_modes; 
  UINT16  min_multi_word_dma_cycle_time; 
  UINT16  rec_multi_word_dma_cycle_time; 
  UINT16  min_pio_cycle_time_without_flow_control; 
  UINT16  min_pio_cycle_time_with_flow_control; 
  UINT16  reserved_69_79[11];     
  UINT16  major_version_no; 
  UINT16  minor_version_no; 
  UINT16  command_set_supported_82;    ///< word 82 
  UINT16  command_set_supported_83;    ///< word 83 
  UINT16  command_set_feature_extn;    ///< word 84 
  UINT16  command_set_feature_enb_85;  ///< word 85 
  UINT16  command_set_feature_enb_86;  ///< word 86 
  UINT16  command_set_feature_default; ///< word 87 
  UINT16  ultra_dma_mode;              ///< word 88 
  UINT16  reserved_89_127[39]; 
  UINT16  security_status; 
  UINT16  vendor_data_129_159[31]; 
  UINT16  reserved_160_255[96]; 
} ATA5_IDENTIFY_DATA;

///
/// ATA_IDENTIFY_DATA strictly complies with ATA/ATAPI-8 Spec
/// to define the data returned by an ATA device upon successful
/// completion of the ATA IDENTIFY_DEVICE command.
///
typedef struct {
  UINT16  config;                                  ///< General Configuration.
  UINT16  obsolete_1;
  UINT16  specific_config;                         ///< Specific Configuration.
  UINT16  obsolete_3;
  UINT16  retired_4_5[2]; 
  UINT16  obsolete_6;
  UINT16  cfa_reserved_7_8[2];
  UINT16  retired_9; 
  CHAR8   SerialNo[20];                            ///< word 10~19
  UINT16  retired_20_21[2];  
  UINT16  obsolete_22;    
  CHAR8   FirmwareVer[8];                          ///< word 23~26
  CHAR8   ModelName[40];                           ///< word 27~46
  UINT16  multi_sector_cmd_max_sct_cnt;
  UINT16  trusted_computing_support; 
  UINT16  capabilities_49;
  UINT16  capabilities_50;
  UINT16  obsolete_51_52[2];           
  UINT16  field_validity;     
  UINT16  obsolete_54_58[5];     
  UINT16  multi_sector_setting;
  UINT16  user_addressable_sectors_lo; 
  UINT16  user_addressable_sectors_hi; 
  UINT16  obsolete_62;     
  UINT16  multi_word_dma_mode;    
  UINT16  advanced_pio_modes; 
  UINT16  min_multi_word_dma_cycle_time; 
  UINT16  rec_multi_word_dma_cycle_time; 
  UINT16  min_pio_cycle_time_without_flow_control; 
  UINT16  min_pio_cycle_time_with_flow_control; 
  UINT16  additional_supported;                    ///< word 69
  UINT16  reserved_70;
  UINT16  reserved_71_74[4];                       ///< Reserved for IDENTIFY PACKET DEVICE cmd.
  UINT16  queue_depth;     
  UINT16  serial_ata_capabilities;
  UINT16  reserved_77;                             ///< Reserved for Serial ATA
  UINT16  serial_ata_features_supported;
  UINT16  serial_ata_features_enabled;
  UINT16  major_version_no; 
  UINT16  minor_version_no; 
  UINT16  command_set_supported_82;                ///< word 82
  UINT16  command_set_supported_83;                ///< word 83
  UINT16  command_set_feature_extn;                ///< word 84
  UINT16  command_set_feature_enb_85;              ///< word 85
  UINT16  command_set_feature_enb_86;              ///< word 86
  UINT16  command_set_feature_default;             ///< word 87
  UINT16  ultra_dma_mode;                          ///< word 88 
  UINT16  time_for_security_erase_unit; 
  UINT16  time_for_enhanced_security_erase_unit;
  UINT16  advanced_power_management_level;
  UINT16  master_password_identifier;
  UINT16  hardware_configuration_test_result;
  UINT16  obsolete_94;
  UINT16  stream_minimum_request_size;
  UINT16  streaming_transfer_time_for_dma;
  UINT16  streaming_access_latency_for_dma_and_pio;
  UINT16  streaming_performance_granularity[2];    ///< word 98~99
  UINT16  maximum_lba_for_48bit_addressing[4];     ///< word 100~103
  UINT16  streaming_transfer_time_for_pio;
  UINT16  max_no_of_512byte_blocks_per_data_set_cmd;
  UINT16  phy_logic_sector_support;                ///< word 106
  UINT16  interseek_delay_for_iso7779;
  UINT16  world_wide_name[4];                      ///< word 108~111
  UINT16  reserved_for_128bit_wwn_112_115[4];
  UINT16  reserved_for_technical_report;
  UINT16  logic_sector_size_lo;                    ///< word 117
  UINT16  logic_sector_size_hi;                    ///< word 118
  UINT16  features_and_command_sets_supported_ext; ///< word 119
  UINT16  features_and_command_sets_enabled_ext;   ///< word 120
  UINT16  reserved_121_126[6];
  UINT16  obsolete_127;
  UINT16  security_status;                         ///< word 128
  UINT16  vendor_specific_129_159[31]; 
  UINT16  cfa_power_mode;                          ///< word 160
  UINT16  reserved_for_compactflash_161_167[7];
  UINT16  device_nominal_form_factor;
  UINT16  is_data_set_cmd_supported;
  CHAR8   additional_product_identifier[8];
  UINT16  reserved_174_175[2];
  CHAR8   media_serial_number[60];                 ///< word 176~205
  UINT16  sct_command_transport;                   ///< word 206
  UINT16  reserved_207_208[2];
  UINT16  alignment_logic_in_phy_blocks;           ///< word 209
  UINT16  write_read_verify_sector_count_mode3[2]; ///< word 210~211
  UINT16  verify_sector_count_mode2[2];
  UINT16  nv_cache_capabilities;
  UINT16  nv_cache_size_in_logical_block_lsw;      ///< word 215
  UINT16  nv_cache_size_in_logical_block_msw;      ///< word 216
  UINT16  nominal_media_rotation_rate;
  UINT16  reserved_218;
  UINT16  nv_cache_options;                        ///< word 219
  UINT16  write_read_verify_mode;                  ///< word 220
  UINT16  reserved_221;
  UINT16  transport_major_revision_number;
  UINT16  transport_minor_revision_number;
  UINT16  reserved_224_229[6];
  UINT64  extended_no_of_addressable_sectors;
  UINT16  min_number_per_download_microcode_mode3; ///< word 234
  UINT16  max_number_per_download_microcode_mode3; ///< word 235
  UINT16  reserved_236_254[19];
  UINT16  integrity_word;
} ATA_IDENTIFY_DATA;

///
/// ATAPI_IDENTIFY_DATA strictly complies with ATA/ATAPI-8 Spec
/// to define the data returned by an ATAPI device upon successful
/// completion of the ATA IDENTIFY_PACKET_DEVICE command.
///
typedef struct {
  UINT16  config;                                  ///< General Configuration.
  UINT16  reserved_1;
  UINT16  specific_config;                         ///< Specific Configuration.
  UINT16  reserved_3_9[7];
  CHAR8   SerialNo[20];                            ///< word 10~19
  UINT16  reserved_20_22[3];
  CHAR8   FirmwareVer[8];                          ///< word 23~26
  CHAR8   ModelName[40];                           ///< word 27~46
  UINT16  reserved_47_48[2];
  UINT16  capabilities_49;
  UINT16  capabilities_50;
  UINT16  obsolete_51;
  UINT16  reserved_52;
  UINT16  field_validity;                          ///< word 53
  UINT16  reserved_54_61[8];
  UINT16  dma_dir;
  UINT16  multi_word_dma_mode;                     ///< word 63
  UINT16  advanced_pio_modes;                      ///< word 64
  UINT16  min_multi_word_dma_cycle_time;
  UINT16  rec_multi_word_dma_cycle_time;
  UINT16  min_pio_cycle_time_without_flow_control;
  UINT16  min_pio_cycle_time_with_flow_control;
  UINT16  reserved_69_70[2];
  UINT16  obsolete_71_72[2];
  UINT16  reserved_73_74[2];
  UINT16  obsolete_75;
  UINT16  serial_ata_capabilities;
  UINT16  reserved_77;                             ///< Reserved for Serial ATA
  UINT16  serial_ata_features_supported;
  UINT16  serial_ata_features_enabled;
  UINT16  major_version_no;                        ///< word 80
  UINT16  minor_version_no;                        ///< word 81
  UINT16  cmd_set_support_82;
  UINT16  cmd_set_support_83;
  UINT16  cmd_feature_support;
  UINT16  cmd_feature_enable_85;
  UINT16  cmd_feature_enable_86;
  UINT16  cmd_feature_default;
  UINT16  ultra_dma_select;
  UINT16  time_required_for_sec_erase;             ///< word 89
  UINT16  time_required_for_enhanced_sec_erase;    ///< word 90
  UINT16  advanced_power_management_level;
  UINT16  master_pwd_revison_code;
  UINT16  hardware_reset_result;                   ///< word 93
  UINT16  obsolete_94;
  UINT16  reserved_95_107[13];
  UINT16  world_wide_name[4];                      ///< word 108~111
  UINT16  reserved_for_128bit_wwn_112_115[4];
  UINT16  reserved_116_118[3];  
  UINT16  command_and_feature_sets_supported;      ///< word 119
  UINT16  command_and_feature_sets_supported_enabled;
  UINT16  reserved_121_124[4];
  UINT16  atapi_byte_count_0_behavior;             ///< word 125
  UINT16  obsolete_126_127[2];
  UINT16  security_status;
  UINT16  reserved_129_159[31];
  UINT16  cfa_reserved_160_175[16];
  UINT16  reserved_176_221[46];
  UINT16  transport_major_version;
  UINT16  transport_minor_version;
  UINT16  reserved_224_254[31];
  UINT16  integrity_word;
} ATAPI_IDENTIFY_DATA;


///
/// Standard Quiry Data format, defined in SFF-8070i(ATAPI Removable Rewritable Specification).
///
typedef struct {
  UINT8 peripheral_type;
  UINT8 RMB;
  UINT8 version;
  UINT8 response_data_format;
  UINT8 addnl_length;     ///< n - 4, Numbers of bytes following this one.
  UINT8 reserved_5;
  UINT8 reserved_6;
  UINT8 reserved_7;
  UINT8 vendor_info[8];
  UINT8 product_id[16];
  UINT8 product_revision_level[4];
  UINT8 vendor_specific_36_55[55 - 36 + 1];
  UINT8 reserved_56_95[95 - 56 + 1];
  ///
  /// Vendor-specific parameters fields. The sizeof (ATAPI_INQUIRY_DATA) is 254
  /// since allocation_length is one byte in ATAPI_INQUIRY_CMD.
  ///
  UINT8 vendor_specific_96_253[253 - 96 + 1];
} ATAPI_INQUIRY_DATA;

///
/// Request Sense Standard Data, defined in SFF-8070i(ATAPI Removable Rewritable Specification).
///
typedef struct {
  UINT8 error_code : 7;
  UINT8 valid : 1;
  UINT8 reserved_1;
  UINT8 sense_key : 4;
  UINT8 reserved_2 : 1;
  UINT8 Vendor_specifc_1 : 3;
  UINT8 vendor_specific_3;
  UINT8 vendor_specific_4;
  UINT8 vendor_specific_5;
  UINT8 vendor_specific_6;
  UINT8 addnl_sense_length;           ///< n - 7
  UINT8 vendor_specific_8;
  UINT8 vendor_specific_9;
  UINT8 vendor_specific_10;
  UINT8 vendor_specific_11;
  UINT8 addnl_sense_code;             ///< mandatory
  UINT8 addnl_sense_code_qualifier;   ///< mandatory
  UINT8 field_replaceable_unit_code;  ///< optional
  UINT8 sense_key_specific_15 : 7;
  UINT8 SKSV : 1;
  UINT8 sense_key_specific_16;
  UINT8 sense_key_specific_17;
} ATAPI_REQUEST_SENSE_DATA;

///
/// READ CAPACITY Data, defined in SFF-8070i(ATAPI Removable Rewritable Specification).
///
typedef struct {
  UINT8 LastLba3;
  UINT8 LastLba2;
  UINT8 LastLba1;
  UINT8 LastLba0;
  UINT8 BlockSize3;
  UINT8 BlockSize2;
  UINT8 BlockSize1;
  UINT8 BlockSize0;
} ATAPI_READ_CAPACITY_DATA;

///
/// Capacity List Header + Current/Maximum Capacity Descriptor,
/// defined in SFF-8070i(ATAPI Removable Rewritable Specification).
///
typedef struct {
  UINT8 reserved_0;
  UINT8 reserved_1;
  UINT8 reserved_2;
  UINT8 Capacity_Length;
  UINT8 LastLba3;
  UINT8 LastLba2;
  UINT8 LastLba1;
  UINT8 LastLba0;
  UINT8 DesCode : 2;
  UINT8 reserved_9 : 6;
  UINT8 BlockSize2;
  UINT8 BlockSize1;
  UINT8 BlockSize0;
} ATAPI_READ_FORMAT_CAPACITY_DATA;

///
/// Test Unit Ready Command, defined in SFF-8070i(ATAPI Removable Rewritable Specification).
///
typedef struct {
  UINT8 opcode;
  UINT8 reserved_1;
  UINT8 reserved_2;
  UINT8 reserved_3;
  UINT8 reserved_4;
  UINT8 reserved_5;
  UINT8 reserved_6;
  UINT8 reserved_7;
  UINT8 reserved_8;
  UINT8 reserved_9;
  UINT8 reserved_10;
  UINT8 reserved_11;
} ATAPI_TEST_UNIT_READY_CMD;

///
/// INQUIRY Command, defined in SFF-8070i(ATAPI Removable Rewritable Specification).
///
typedef struct {
  UINT8 opcode;
  UINT8 reserved_1 : 5;
  UINT8 lun : 3;
  UINT8 page_code;        ///< defined in SFF8090i, V6
  UINT8 reserved_3;
  UINT8 allocation_length;
  UINT8 reserved_5;
  UINT8 reserved_6;
  UINT8 reserved_7;
  UINT8 reserved_8;
  UINT8 reserved_9;
  UINT8 reserved_10;
  UINT8 reserved_11;
} ATAPI_INQUIRY_CMD;

///
/// REQUEST SENSE Command, defined in SFF-8070i(ATAPI Removable Rewritable Specification).
///
typedef struct {
  UINT8 opcode;
  UINT8 reserved_1 : 5;
  UINT8 lun : 3;
  UINT8 reserved_2;
  UINT8 reserved_3;
  UINT8 allocation_length;
  UINT8 reserved_5;
  UINT8 reserved_6;
  UINT8 reserved_7;
  UINT8 reserved_8;
  UINT8 reserved_9;
  UINT8 reserved_10;
  UINT8 reserved_11;
} ATAPI_REQUEST_SENSE_CMD;

///
/// READ (10) Command, defined in SFF-8070i(ATAPI Removable Rewritable Specification).
///
typedef struct {
  UINT8 opcode;
  UINT8 reserved_1 : 5;
  UINT8 lun : 3;
  UINT8 Lba0;
  UINT8 Lba1;
  UINT8 Lba2;
  UINT8 Lba3;
  UINT8 reserved_6;
  UINT8 TranLen0;
  UINT8 TranLen1;
  UINT8 reserved_9;
  UINT8 reserved_10;
  UINT8 reserved_11;
} ATAPI_READ10_CMD;

///
/// READ Format Capacity Command, defined in SFF-8070i(ATAPI Removable Rewritable Specification).
///
typedef struct {
  UINT8 opcode;
  UINT8 reserved_1 : 5;
  UINT8 lun : 3;
  UINT8 reserved_2;
  UINT8 reserved_3;
  UINT8 reserved_4;
  UINT8 reserved_5;
  UINT8 reserved_6;
  UINT8 allocation_length_hi;
  UINT8 allocation_length_lo;
  UINT8 reserved_9;
  UINT8 reserved_10;
  UINT8 reserved_11;
} ATAPI_READ_FORMAT_CAP_CMD;

///
/// MODE SENSE Command, defined in SFF-8070i(ATAPI Removable Rewritable Specification).
///
typedef struct {
  UINT8 opcode;
  UINT8 reserved_1 : 5;
  UINT8 lun : 3;
  UINT8 page_code : 6;
  UINT8 page_control : 2;
  UINT8 reserved_3;
  UINT8 reserved_4;
  UINT8 reserved_5;
  UINT8 reserved_6;
  UINT8 parameter_list_length_hi;
  UINT8 parameter_list_length_lo;
  UINT8 reserved_9;
  UINT8 reserved_10;
  UINT8 reserved_11;
} ATAPI_MODE_SENSE_CMD;

///
/// ATAPI_PACKET_COMMAND is not defined in the ATA specification.
/// We add it here for the convenience of ATA/ATAPI module writers. 
///
typedef union {
  UINT16                    Data16[6];
  ATAPI_TEST_UNIT_READY_CMD TestUnitReady;
  ATAPI_READ10_CMD          Read10;
  ATAPI_REQUEST_SENSE_CMD   RequestSence;
  ATAPI_INQUIRY_CMD         Inquiry;
  ATAPI_MODE_SENSE_CMD      ModeSense;
  ATAPI_READ_FORMAT_CAP_CMD ReadFormatCapacity;
} ATAPI_PACKET_COMMAND;

#pragma pack()


#define ATAPI_MAX_DMA_EXT_CMD_SECTORS 0x10000
#define ATAPI_MAX_DMA_CMD_SECTORS     0x100

//
// ATA Packet Command Code
//
#define ATA_CMD_SOFT_RESET                  0x08   ///< defined from ATA-3
#define ATA_CMD_PACKET                      0xA0   ///< defined from ATA-3
#define ATA_CMD_IDENTIFY_DEVICE             0xA1   ///< defined from ATA-3
#define ATA_CMD_SERVICE                     0xA2   ///< defined from ATA-3
#define ATA_CMD_TEST_UNIT_READY             0x00   ///< defined from ATA-1
#define ATA_CMD_REQUEST_SENSE               0x03   ///< defined from ATA-4
#define ATA_CMD_INQUIRY                     0x12   ///< defined in ATAPI Removable Rewritable Media Devcies
#define ATA_CMD_READ_FORMAT_CAPACITY        0x23   ///< defined in ATAPI Removable Rewritable Media Devcies
#define ATA_CMD_READ_CAPACITY               0x25   ///< defined in ATAPI Removable Rewritable Media Devcies
#define ATA_CMD_READ_10                     0x28   ///< defined in ATAPI Removable Rewritable Media Devcies
#define ATA_CMD_WRITE_10                    0x2A   ///< defined in ATAPI Removable Rewritable Media Devcies
#define ATA_CMD_READ_12                     0xA8   ///< defined in ATAPI Removable Rewritable Media Devcies
#define ATA_CMD_WRITE_12                    0xAA   ///< defined in ATAPI Removable Rewritable Media Devcies
#define ATA_CMD_START_STOP_UNIT             0x1B   ///< defined in ATAPI Removable Rewritable Media Devcies
///
/// Start/Stop and Eject Operations
///
///@{
#define   ATA_CMD_SUBOP_STOP_DISC           0x00   ///< Stop the Disc
#define   ATA_CMD_SUBOP_START_DISC          0x01   ///< Start the Disc and acquire the format type
#define   ATA_CMD_SUBOP_EJECT_DISC          0x02   ///< Eject the Disc if possible
#define   ATA_CMD_SUBOP_CLOSE_TRAY          0x03   ///< Load the Disc (Close Tray)
///@}

//
// ATA Commands Code
//

//
// Class 1: PIO Data-In Commands
//
#define ATA_CMD_IDENTIFY_DRIVE          0xec   ///< defined from ATA-3
#define ATA_CMD_READ_BUFFER             0xe4   ///< defined from ATA-1
#define ATA_CMD_READ_SECTORS            0x20   ///< defined from ATA-1     
#define ATA_CMD_READ_SECTORS_WITH_RETRY 0x21   ///< defined from ATA-1, obsoleted from ATA-5
#define ATA_CMD_READ_LONG               0x22   ///< defined from ATA-1, obsoleted from ATA-5
#define ATA_CMD_READ_LONG_WITH_RETRY    0x23   ///< defined from ATA-1, obsoleted from ATA-5
#define ATA_CMD_READ_SECTORS_EXT        0x24   ///< defined from ATA-6

//
// Class 2: PIO Data-Out Commands
//
#define ATA_CMD_FORMAT_TRACK              0x50  ///< defined from ATA-1, obsoleted from ATA-4
#define ATA_CMD_WRITE_BUFFER              0xe8  ///< defined from ATA-1  
#define ATA_CMD_WRITE_SECTORS             0x30  ///< defined from ATA-1
#define ATA_CMD_WRITE_SECTORS_WITH_RETRY  0x31  ///< defined from ATA-1, obsoleted from ATA-5
#define ATA_CMD_WRITE_LONG                0x32  ///< defined from ATA-1, obsoleted from ATA-5
#define ATA_CMD_WRITE_LONG_WITH_RETRY     0x33  ///< defined from ATA-1, obsoleted from ATA-5
#define ATA_CMD_WRITE_VERIFY              0x3c  ///< defined from ATA-1, obsoleted from ATA-5
#define ATA_CMD_WRITE_SECTORS_EXT         0x34  ///< defined from ATA-6

//
// Class 3 No Data Command
//
#define ATA_CMD_ACK_MEDIA_CHANGE        0xdb  ///< defined from ATA-1, obsoleted from ATA-5 
#define ATA_CMD_BOOT_POST_BOOT          0xdc  ///< defined from ATA-1, obsoleted from ATA-3
#define ATA_CMD_BOOT_PRE_BOOT           0xdd  ///< defined from ATA-1, obsoleted from ATA-3
#define ATA_CMD_CHECK_POWER_MODE        0x98  ///< defined from ATA-1, obsoleted from ATA-4
#define ATA_CMD_CHECK_POWER_MODE_ALIAS  0xe5  ///< defined from ATA-1
#define ATA_CMD_DOOR_LOCK               0xde  ///< defined from ATA-1
#define ATA_CMD_DOOR_UNLOCK             0xdf  ///< defined from ATA-1
#define ATA_CMD_EXEC_DRIVE_DIAG         0x90  ///< defined from ATA-1
#define ATA_CMD_IDLE_ALIAS              0x97  ///< defined from ATA-1, obsoleted from ATA-4
#define ATA_CMD_IDLE                    0xe3  ///< defined from ATA-1
#define ATA_CMD_IDLE_IMMEDIATE          0x95  ///< defined from ATA-1, obsoleted from ATA-4
#define ATA_CMD_IDLE_IMMEDIATE_ALIAS    0xe1  ///< defined from ATA-1
#define ATA_CMD_INIT_DRIVE_PARAM        0x91  ///< defined from ATA-1, obsoleted from ATA-6
#define ATA_CMD_RECALIBRATE             0x10  ///< defined from ATA-1, obsoleted from ATA-4
#define ATA_CMD_READ_DRIVE_STATE        0xe9  ///< defined from ATA-1, obsoleted from ATA-3
#define ATA_CMD_SET_MULTIPLE_MODE       0xC6  ///< defined from ATA-2
#define ATA_CMD_READ_VERIFY             0x40  ///< defined from ATA-1
#define ATA_CMD_READ_VERIFY_WITH_RETRY  0x41  ///< defined from ATA-1, obsoleted from ATA-5
#define ATA_CMD_SEEK                    0x70  ///< defined from ATA-1
#define ATA_CMD_SET_FEATURES            0xef  ///< defined from ATA-1
#define ATA_CMD_STANDBY                 0x96  ///< defined from ATA-1, obsoleted from ATA-4
#define ATA_CMD_STANDBY_ALIAS           0xe2  ///< defined from ATA-1
#define ATA_CMD_STANDBY_IMMEDIATE       0x94  ///< defined from ATA-1, obsoleted from ATA-4
#define ATA_CMD_STANDBY_IMMEDIATE_ALIAS 0xe0  ///< defined from ATA-1
//
// S.M.A.R.T
//
#define ATA_CMD_SMART               0xb0  ///< defined from ATA-3
#define ATA_CONSTANT_C2             0xc2  ///< reserved
#define ATA_CONSTANT_4F             0x4f  ///< reserved
#define ATA_SMART_ENABLE_OPERATION  0xd8  ///< reserved
#define ATA_SMART_RETURN_STATUS     0xda  ///< defined from ATA-3

//
// Class 4: DMA Command
//
#define ATA_CMD_READ_DMA              0xc8   ///< defined from ATA-1
#define ATA_CMD_READ_DMA_WITH_RETRY   0xc9   ///< defined from ATA-1, obsoleted from ATA-5
#define ATA_CMD_READ_DMA_EXT          0x25   ///< defined from ATA-6
#define ATA_CMD_WRITE_DMA             0xca   ///< defined from ATA-1
#define ATA_CMD_WRITE_DMA_WITH_RETRY  0xcb   ///< defined from ATA-1, obsoleted from ATA-
#define ATA_CMD_WRITE_DMA_EXT         0x35   ///< defined from ATA-6
        
///
/// Default content of device control register, disable INT,
/// Bit3 is set to 1 according ATA-1
///
#define ATA_DEFAULT_CTL           (0x0a)  
///
/// Default context of Device/Head Register,
/// Bit7 and Bit5 are set to 1 for back-compatibilities.
///
#define ATA_DEFAULT_CMD           (0xa0)

#define ATAPI_MAX_BYTE_COUNT  (0xfffe)

#define ATA_REQUEST_SENSE_ERROR (0x70) ///< defined in SFF-8070i

//
// Sense Key, Additional Sense Codes and Additional Sense Code Qualifier
// defined in MultiMedia Commands (MMC, MMC-2) 
//
// Sense Key 
//
#define ATA_SK_NO_SENSE         (0x0)
#define ATA_SK_RECOVERY_ERROR   (0x1)
#define ATA_SK_NOT_READY        (0x2)
#define ATA_SK_MEDIUM_ERROR     (0x3)
#define ATA_SK_HARDWARE_ERROR   (0x4)
#define ATA_SK_ILLEGAL_REQUEST  (0x5)
#define ATA_SK_UNIT_ATTENTION   (0x6)
#define ATA_SK_DATA_PROTECT     (0x7)
#define ATA_SK_BLANK_CHECK      (0x8)
#define ATA_SK_VENDOR_SPECIFIC  (0x9)
#define ATA_SK_RESERVED_A       (0xA)
#define ATA_SK_ABORT            (0xB)
#define ATA_SK_RESERVED_C       (0xC)
#define ATA_SK_OVERFLOW         (0xD)
#define ATA_SK_MISCOMPARE       (0xE)
#define ATA_SK_RESERVED_F       (0xF)

//
// Additional Sense Codes
//
#define ATA_ASC_NOT_READY                   (0x04)
#define ATA_ASC_MEDIA_ERR1                  (0x10)
#define ATA_ASC_MEDIA_ERR2                  (0x11)
#define ATA_ASC_MEDIA_ERR3                  (0x14)
#define ATA_ASC_MEDIA_ERR4                  (0x30)
#define ATA_ASC_MEDIA_UPSIDE_DOWN           (0x06)
#define ATA_ASC_INVALID_CMD                 (0x20)
#define ATA_ASC_LBA_OUT_OF_RANGE            (0x21)
#define ATA_ASC_INVALID_FIELD               (0x24)
#define ATA_ASC_WRITE_PROTECTED             (0x27)
#define ATA_ASC_MEDIA_CHANGE                (0x28)
#define ATA_ASC_RESET                       (0x29)  ///< Power On Reset or Bus Reset occurred.
#define ATA_ASC_ILLEGAL_FIELD               (0x26)
#define ATA_ASC_NO_MEDIA                    (0x3A)
#define ATA_ASC_ILLEGAL_MODE_FOR_THIS_TRACK (0x64)

//
// Additional Sense Code Qualifier
//
#define ATA_ASCQ_IN_PROGRESS  (0x01)

//
// Error Register
//
#define ATA_ERRREG_BBK   BIT7  ///< Bad block detected      defined from ATA-1, obsoleted from ATA-2
#define ATA_ERRREG_UNC   BIT6  ///< Uncorrectable Data      defined from ATA-1, obsoleted from ATA-4
#define ATA_ERRREG_MC    BIT5  ///< Media Change            defined from ATA-1, obsoleted from ATA-4
#define ATA_ERRREG_IDNF  BIT4  ///< ID Not Found            defined from ATA-1, obsoleted from ATA-4
#define ATA_ERRREG_MCR   BIT3  ///< Media Change Requested  defined from ATA-1, obsoleted from ATA-4
#define ATA_ERRREG_ABRT  BIT2  ///< Aborted Command         defined from ATA-1
#define ATA_ERRREG_TK0NF BIT1  ///< Track 0 Not Found       defined from ATA-1, obsoleted from ATA-4
#define ATA_ERRREG_AMNF  BIT0  ///< Address Mark Not Found  defined from ATA-1, obsoleted from ATA-4

//
// Status Register
//
#define ATA_STSREG_BSY   BIT7  ///< Controller Busy         defined from ATA-1
#define ATA_STSREG_DRDY  BIT6  ///< Drive Ready             defined from ATA-1
#define ATA_STSREG_DWF   BIT5  ///< Drive Write Fault       defined from ATA-1, obsoleted from ATA-4
#define ATA_STSREG_DF    BIT5  ///< Drive Fault             defined from ATA-6
#define ATA_STSREG_DSC   BIT4  ///< Disk Seek Complete      defined from ATA-1, obsoleted from ATA-4
#define ATA_STSREG_DRQ   BIT3  ///< Data Request            defined from ATA-1
#define ATA_STSREG_CORR  BIT2  ///< Corrected Data          defined from ATA-1, obsoleted from ATA-4
#define ATA_STSREG_IDX   BIT1  ///< Index                   defined from ATA-1, obsoleted from ATA-4
#define ATA_STSREG_ERR   BIT0  ///< Error                   defined from ATA-1

//
// Device Control Register
//
#define ATA_CTLREG_SRST  BIT2  ///< Software Reset.
#define ATA_CTLREG_IEN_L BIT1  ///< Interrupt Enable #.

#endif

