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https://github.com/LadybirdBrowser/ladybird.git
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4dc3617f3c
Like what happened with the PCI and USB code, this feels like the right thing to do because we can improve on the ATA capabilities and keep it distinguished from the rest of the subsystem.
201 lines
5 KiB
C++
201 lines
5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#define ATA_SR_BSY 0x80
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#define ATA_SR_DRDY 0x40
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#define ATA_SR_DF 0x20
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#define ATA_SR_DSC 0x10
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#define ATA_SR_DRQ 0x08
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#define ATA_SR_CORR 0x04
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#define ATA_SR_IDX 0x02
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#define ATA_SR_ERR 0x01
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#define ATA_ER_BBK 0x80
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#define ATA_ER_UNC 0x40
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#define ATA_ER_MC 0x20
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#define ATA_ER_IDNF 0x10
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#define ATA_ER_MCR 0x08
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#define ATA_ER_ABRT 0x04
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#define ATA_ER_TK0NF 0x02
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#define ATA_ER_AMNF 0x01
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#define ATA_CMD_READ_PIO 0x20
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#define ATA_CMD_READ_PIO_EXT 0x24
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#define ATA_CMD_READ_DMA 0xC8
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#define ATA_CMD_READ_DMA_EXT 0x25
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#define ATA_CMD_WRITE_PIO 0x30
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#define ATA_CMD_WRITE_PIO_EXT 0x34
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#define ATA_CMD_WRITE_DMA 0xCA
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#define ATA_CMD_WRITE_DMA_EXT 0x35
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#define ATA_CMD_CACHE_FLUSH 0xE7
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#define ATA_CMD_CACHE_FLUSH_EXT 0xEA
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#define ATA_CMD_PACKET 0xA0
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#define ATA_CMD_IDENTIFY_PACKET 0xA1
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#define ATA_CMD_IDENTIFY 0xEC
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#define ATAPI_CMD_READ 0xA8
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#define ATAPI_CMD_EJECT 0x1B
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#define ATA_IDENT_DEVICETYPE 0
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#define ATA_IDENT_CYLINDERS 2
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#define ATA_IDENT_HEADS 6
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#define ATA_IDENT_SECTORS 12
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#define ATA_IDENT_SERIAL 20
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#define ATA_IDENT_MODEL 54
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#define ATA_IDENT_CAPABILITIES 98
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#define ATA_IDENT_FIELDVALID 106
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#define ATA_IDENT_MAX_LBA 120
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#define ATA_IDENT_COMMANDSETS 164
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#define ATA_IDENT_MAX_LBA_EXT 200
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#define ATA_USE_LBA_ADDRESSING (1 << 6)
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#define IDE_ATA 0x00
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#define IDE_ATAPI 0x01
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#define ATA_REG_DATA 0x00
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#define ATA_REG_ERROR 0x01
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#define ATA_REG_FEATURES 0x01
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#define ATA_REG_SECCOUNT0 0x02
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#define ATA_REG_LBA0 0x03
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#define ATA_REG_LBA1 0x04
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#define ATA_REG_LBA2 0x05
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#define ATA_REG_HDDEVSEL 0x06
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#define ATA_REG_COMMAND 0x07
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#define ATA_REG_STATUS 0x07
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#define ATA_REG_SECCOUNT1 0x08
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#define ATA_REG_LBA3 0x09
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#define ATA_REG_LBA4 0x0A
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#define ATA_REG_LBA5 0x0B
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#define ATA_CTL_CONTROL 0x00
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#define ATA_CTL_ALTSTATUS 0x00
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#define ATA_CTL_DEVADDRESS 0x01
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#define ATA_CAP_LBA 0x200
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#include <AK/Types.h>
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namespace Kernel {
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struct [[gnu::packed]] ATAIdentifyBlock {
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u16 general_configuration;
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u16 obsolete;
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u16 specific_configuration;
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u16 obsolete2;
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u16 retired[2];
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u16 obsolete3;
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u16 reserved_for_cfa[2];
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u16 retired2;
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u16 serial_number[10];
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u16 retired3[2];
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u16 obsolete4;
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u16 firmware_revision[4];
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u16 model_number[20];
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u16 maximum_logical_sectors_per_drq;
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u16 trusted_computing_features;
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u16 capabilities[2];
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u16 obsolete5[2];
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u16 validity_flags;
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u16 obsolete6[5];
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u16 security_features;
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u32 max_28_bit_addressable_logical_sector;
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u16 obsolete7;
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u16 dma_modes;
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u16 pio_modes;
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u16 minimum_multiword_dma_transfer_cycle;
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u16 recommended_multiword_dma_transfer_cycle;
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u16 minimum_multiword_pio_transfer_cycle_without_flow_control;
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u16 minimum_multiword_pio_transfer_cycle_with_flow_control;
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u16 additional_supported;
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u16 reserved3[5];
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u16 queue_depth;
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u16 serial_ata_capabilities;
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u16 serial_ata_additional_capabilities;
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u16 serial_ata_features_supported;
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u16 serial_ata_features_enabled;
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u16 major_version_number;
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u16 minor_version_number;
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u16 commands_and_feature_sets_supported[3];
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u16 commands_and_feature_sets_supported_or_enabled[3];
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u16 ultra_dma_modes;
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u16 timing_for_security_features[2];
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u16 apm_level;
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u16 master_password_id;
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u16 hardware_reset_results;
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u16 obsolete8;
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u16 stream_minimum_request_time;
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u16 streaming_transfer_time_for_dma;
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u16 streaming_access_latency;
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u16 streaming_performance_granularity[2];
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u64 user_addressable_logical_sectors_count;
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u16 streaming_transfer_time_for_pio;
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u16 max_512_byte_blocks_per_data_set_management_command;
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u16 physical_sector_size_to_logical_sector_size;
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u16 inter_seek_delay_for_acoustic_testing;
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u16 world_wide_name[4];
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u16 reserved4[4];
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u16 obsolete9;
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u32 logical_sector_size;
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u16 commands_and_feature_sets_supported2;
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u16 commands_and_feature_sets_supported_or_enabled2;
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u16 reserved_for_expanded_supported_and_enabled_settings[6];
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u16 obsolete10;
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u16 security_status;
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u16 vendor_specific[31];
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u16 reserved_for_cfa2[8];
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u16 device_nominal_form_factor;
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u16 data_set_management_command_support;
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u16 additional_product_id[4];
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u16 reserved5[2];
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u16 current_media_serial_number[30];
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u16 sct_command_transport;
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u16 reserved6[2];
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u16 logical_sectors_alignment_within_physical_sector;
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u32 write_read_verify_sector_mode_3_count;
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u32 write_read_verify_sector_mode_2_count;
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u16 obsolete11[3];
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u16 nominal_media_rotation_rate;
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u16 reserved7;
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u16 obsolete12;
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u16 write_read_verify_feature_set_current_mode;
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u16 reserved8;
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u16 transport_major_version_number;
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u16 transport_minor_version_number;
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u16 reserved9[6];
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u64 extended_user_addressable_logical_sectors_count;
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u16 minimum_512_byte_data_blocks_per_download_microcode_operation;
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u16 max_512_byte_data_blocks_per_download_microcode_operation;
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u16 reserved10[19];
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u16 integrity;
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};
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};
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