1 /* 2 * Copyright 2010-2015, Axel Dörfler, axeld@pinc-software.de. 3 * Copyright 2009, Michael Lotz, mmlr@mlotz.ch. 4 * Distributed under the terms of the MIT License. 5 */ 6 #ifndef ATA_INFOBLOCK_H 7 #define ATA_INFOBLOCK_H 8 9 10 #include <lendian_bitfield.h> 11 12 13 #define ATA_WORD_0_ATA_DEVICE 0 14 #define ATA_WORD_0_ATAPI_DEVICE 2 15 #define ATA_WORD_0_CFA_MAGIC 0x848a 16 17 18 typedef struct ata_device_infoblock { 19 union { 20 struct { 21 B_LBITFIELD16_8( 22 word_0_bit_0_reserved : 1, 23 word_0_bit_1_retired : 1, 24 response_incomplete : 1, 25 word_0_bit_3_5_retired : 3, 26 word_0_bit_6_obsolete : 1, 27 removable_media_device : 1, 28 word_0_bit_8_14_retired : 7, 29 ata_device : 1 // 0 means ATA 30 ); 31 } ata; 32 struct { 33 B_LBITFIELD16_8( 34 packet_length : 2, // 0 = 12, 1 = 16 bytes 35 response_incomplete : 1, 36 word_0_bit_3_4_reserved : 2, 37 data_request_delay : 2, // 0 = 3ms, 2 = 50us 38 removable_media_device : 1, 39 command_packet_set : 5, 40 word_0_bit_13_reserved : 1, 41 atapi_device : 2 // 2 means ATAPI 42 ); 43 } atapi; 44 uint16 raw; 45 } word_0; 46 47 uint16 word_1_obsolete; 48 uint16 specific_configuration; 49 uint16 word_3_obsolete; 50 uint16 word_4_5_retired[2]; 51 uint16 word_6_obsolete; 52 uint16 word_7_8_reserved_compact_flash_assoc[2]; 53 uint16 word_9_retired; 54 char serial_number[20]; 55 uint16 word_20_21_retired[2]; 56 uint16 word_22_obsolete; 57 char firmware_revision[8]; 58 char model_number[40]; 59 60 B_LBITFIELD16_2( 61 max_sectors_per_interrupt : 8, 62 word_47_bit_8_15_80h : 8 // should be 0x80 63 ); 64 65 uint16 word_48_reserved; 66 67 B_LBITFIELD16_9( 68 word_49_bit_0_7_retired : 8, 69 dma_supported : 1, 70 lba_supported : 1, 71 io_ready_disable : 1, 72 io_ready_supported : 1, 73 word_19_bit_12_obsolete : 1, 74 standby_timer_standard : 1, 75 atapi_command_queuing_supported : 1, 76 atapi_interleaved_dma_supported : 1 77 ); 78 79 B_LBITFIELD16_5( 80 standby_timer_value_min : 1, 81 word_50_bit_1_obsolete : 1, 82 word_50_bit_2_13_reserved : 12, 83 word_50_bit_14_one : 1, 84 word_50_bit_15_zero : 1 85 ); 86 87 uint16 word_51_52_obsolete[2]; 88 89 B_LBITFIELD16_4( 90 word_53_bit_0_obsolete : 1, 91 word_64_70_valid : 1, 92 word_88_valid : 1, 93 word_53_bit_3_15 : 13 94 ); 95 96 uint16 word_54_58_obsolete[5]; 97 98 B_LBITFIELD16_3( 99 current_sectors_per_interrupt : 8, 100 multiple_sector_setting_valid : 1, 101 word_59_bit_9_15_reserved : 7 102 ); 103 104 uint32 lba_sector_count; 105 uint16 word_62_obsolete; 106 107 B_LBITFIELD16_8( 108 multiword_dma_0_supported : 1, 109 multiword_dma_1_supported : 1, 110 multiword_dma_2_supported : 1, 111 word_63_bit_3_7_resereved : 5, 112 multiword_dma_0_selected : 1, 113 multiword_dma_1_selected : 1, 114 multiword_dma_2_selected : 1, 115 word_63_bit_11_15_reserved : 5 116 ); 117 118 B_LBITFIELD16_2( 119 pio_modes_supported : 8, 120 word_64_bit_8_15_reserved : 8 121 ); 122 123 uint16 min_multiword_dma_cycle_time; 124 uint16 recommended_multiword_dma_cycle_time; 125 uint16 min_pio_cycle_time; 126 uint16 min_pio_cycle_time_io_ready; 127 B_LBITFIELD16_12( 128 word_69_bit_0_4_reserved : 5, 129 supports_read_zero_after_trim : 1, 130 supports_ata28_commands : 1, 131 word_69_bit_7_reserved : 1, 132 supports_download_microcode_dma : 1, 133 supports_set_max_password_unlock_dma : 1, 134 supports_write_buffer_dma : 1, 135 supports_read_buffer_dma : 1, 136 supports_device_configuration_identify_dma : 1, 137 supports_long_physical_sector_error_reporting : 1, 138 supports_deterministic_read_after_trim : 1, 139 supports_cfast_specification : 1 140 ); 141 uint16 word_70_reserved; 142 uint16 atapi_packet_received_to_bus_release_time_ns; 143 uint16 atapi_service_command_to_busy_clear_time_ns; 144 uint16 word_71_74_reserved[2]; 145 146 B_LBITFIELD16_2( 147 max_queue_depth_minus_one : 5, 148 word_75_bit_5_15_reserved : 11 149 ); 150 151 uint16 word_76_79_reserved[4]; 152 153 B_LBITFIELD16_14( 154 word_80_bit_0_reserved : 1, 155 word_80_bit_1_3_obsolete : 3, 156 supports_ata_atapi_4 : 1, 157 supports_ata_atapi_5 : 1, 158 supports_ata_atapi_6 : 1, 159 supports_ata_atapi_7 : 1, 160 supports_ata_atapi_8 : 1, 161 supports_ata_atapi_9 : 1, 162 supports_ata_atapi_10 : 1, 163 supports_ata_atapi_11 : 1, 164 supports_ata_atapi_12 : 1, 165 supports_ata_atapi_13 : 1, 166 supports_ata_atapi_14 : 1, 167 word_80_bit_15_reserved : 1 168 ); 169 170 uint16 minor_version; 171 172 B_LBITFIELD16_16( 173 smart_supported : 1, 174 security_mode_supported : 1, 175 removable_media_supported : 1, 176 mandatory_power_management_supported : 1, 177 packet_supported : 1, 178 write_cache_supported : 1, 179 look_ahead_supported : 1, 180 release_interrupt_supported : 1, 181 service_interrupt_supported : 1, 182 device_reset_supported : 1, 183 host_protected_area_supported : 1, 184 word_82_bit_11_obsolete : 1, 185 write_buffer_command_supported : 1, 186 read_buffer_command_supported : 1, 187 nop_supported : 1, 188 word_82_bit_15_obsolete : 1 189 ); 190 191 B_LBITFIELD16_16( 192 download_microcode_supported : 1, 193 read_write_dma_queued_supported : 1, 194 compact_flash_assoc_supported : 1, 195 advanced_power_management_supported : 1, 196 removable_media_status_supported : 1, 197 power_up_in_standby_supported : 1, 198 set_features_required_for_spinup : 1, 199 word_83_bit_7_reserved : 1, 200 set_max_security_extension_supported : 1, 201 automatic_acoustic_management_supported : 1, 202 lba48_supported : 1, 203 device_configuration_overlay_supported : 1, 204 mandatory_flush_cache_supported : 1, 205 flush_cache_ext_supported : 1, 206 word_83_bit_14_one : 1, 207 word_83_bit_15_zero : 1 208 ); 209 210 B_LBITFIELD16_9( 211 smart_error_logging_supported : 1, 212 smart_self_test_supported : 1, 213 media_serial_number_supported : 1, 214 media_card_pass_through_supported : 1, 215 word_84_bit_4_reserved : 1, 216 general_purpose_logging_supported : 1, 217 word_84_bit_6_13_reserved : 8, 218 word_84_bit_14_one : 1, 219 word_84_bit_15_zero : 1 220 ); 221 222 B_LBITFIELD16_16( 223 smart_enabled : 1, 224 security_mode_enabled : 1, 225 removable_media_enabled : 1, 226 mandatory_power_management_enabled : 1, 227 packet_enabled : 1, 228 write_cache_enabled : 1, 229 look_ahead_enabled : 1, 230 release_interrupt_enabled : 1, 231 service_interrupt_enabled : 1, 232 device_reset_enabled : 1, 233 host_protected_area_enabled : 1, 234 word_85_bit_11_obsolete : 1, 235 write_buffer_command_enabled : 1, 236 read_buffer_command_enabled : 1, 237 nop_enabled : 1, 238 word_85_bit_15_obsolete : 1 239 ); 240 241 B_LBITFIELD16_15( 242 download_microcode_supported_2 : 1, 243 read_write_dma_queued_supported_2 : 1, 244 compact_flash_assoc_enabled : 1, 245 advanced_power_management_enabled : 1, 246 removable_media_status_enabled : 1, 247 power_up_in_standby_enabled : 1, 248 set_features_required_for_spinup_2 : 1, 249 word_86_bit_7_reserved : 1, 250 set_max_security_extension_enabled : 1, 251 automatic_acoustic_management_enabled : 1, 252 lba48_supported_2 : 1, 253 device_configuration_overlay_supported_2: 1, 254 mandatory_flush_cache_supported_2 : 1, 255 flush_cache_ext_supported_2 : 1, 256 word_86_bit_14_15_reserved : 2 257 ); 258 259 B_LBITFIELD16_9( 260 smart_error_logging_supported_2 : 1, 261 smart_self_test_supported_2 : 1, 262 media_serial_number_valid : 1, 263 media_card_pass_through_enabled : 1, 264 word_87_bit_4_reserved : 1, 265 general_purpose_logging_supported_2 : 1, 266 word_87_bit_6_13_reserved : 8, 267 word_87_bit_14_one : 1, 268 word_87_bit_15_zero : 1 269 ); 270 271 B_LBITFIELD16_16( 272 ultra_dma_0_supported : 1, 273 ultra_dma_1_supported : 1, 274 ultra_dma_2_supported : 1, 275 ultra_dma_3_supported : 1, 276 ultra_dma_4_supported : 1, 277 ultra_dma_5_supported : 1, 278 ultra_dma_6_supported : 1, 279 word_88_bit_7_reserved : 1, 280 ultra_dma_0_selected : 1, 281 ultra_dma_1_selected : 1, 282 ultra_dma_2_selected : 1, 283 ultra_dma_3_selected : 1, 284 ultra_dma_4_selected : 1, 285 ultra_dma_5_selected : 1, 286 ultra_dma_6_selected : 1, 287 word_88_bit_15_reserved : 1 288 ); 289 290 uint16 security_erase_unit_duration; 291 uint16 enhanced_security_erase_duration; 292 uint16 current_advanced_power_management_value; 293 uint16 master_password_revision_code; 294 295 B_LBITFIELD16_5( 296 device_0_hardware_reset_result : 8, 297 device_1_hardware_reset_result : 5, 298 cable_id_detected : 1, 299 word_93_bit_14_one : 1, 300 word_93_bit_15_zero : 1 301 ); 302 303 B_LBITFIELD16_2( 304 current_acoustic_management_value : 8, 305 recommended_acoustic_management_value : 8 306 ); 307 308 uint16 word_95_99_reserved[5]; 309 uint64 lba48_sector_count; 310 uint16 word_104_reserved; 311 uint16 max_data_set_management_lba_range_blocks; 312 313 B_LBITFIELD16_6( 314 logical_sectors_per_physical_sector : 4, // 2^x exponent 315 word_106_bit_4_11_reserved : 8, 316 logical_sector_not_512_bytes : 1, 317 multiple_logical_per_physical_sectors : 1, 318 word_106_bit_14_one : 1, 319 word_106_bit_15_zero : 1 320 ); 321 322 uint16 word_107_116_reserved[10]; 323 324 uint32 logical_sector_size; // in words, see 106 325 326 uint16 word_119_126_reserved[8]; 327 328 B_LBITFIELD16_2( 329 removable_media_status_supported_2 : 2, // 1 = supported 330 word_127_bit_2_15_reserved : 14 331 ); 332 333 B_LBITFIELD16_9( 334 security_supported : 1, 335 security_enabled : 1, 336 security_locked : 1, 337 security_frozen : 1, 338 security_count_expired : 1, 339 ehnaced_security_erase_supported : 1, 340 word_128_bit_6_7_reserved : 2, 341 security_level : 1, // 0 = high, 1 = max 342 word_128_bit_9_15 : 7 343 ); 344 345 uint16 word_129_159_vendor_specific[31]; 346 347 B_LBITFIELD16_5( 348 cfa_max_current_milli_ampers : 12, 349 cfa_power_mode_1_disabled : 1, 350 cfa_power_mode_1_required : 1, 351 word_160_bit_14_reserved : 1, 352 word_160_supported : 1 353 ); 354 355 uint16 word_161_167_reserved_compact_flash_assoc[7]; 356 B_LBITFIELD16_2( 357 device_nominal_form_factor : 4, 358 word_168_bits_4_15_reserved : 12 359 ); 360 B_LBITFIELD16_2( 361 data_set_management_support : 1, 362 word_169_bits_1_15_reserved : 15 363 ); 364 uint16 additional_product_identifier[4]; 365 uint16 word_174_175_reserved[2]; 366 uint16 current_media_serial_number[30]; 367 uint16 word_206_208_reserved[3]; 368 369 B_LBITFIELD16_3( 370 logical_sector_offset : 14, 371 word_209_bit_14_one : 1, 372 word_209_bit_15_zero : 1 373 ); 374 375 uint16 word_210_254_reserved[45]; 376 377 B_LBITFIELD16_2( 378 signature : 8, 379 checksum : 8 380 ); 381 SectorCountata_device_infoblock382 uint64 SectorCount(bool& use48Bits, bool force) 383 { 384 if (lba48_supported && lba48_sector_count >= lba_sector_count) { 385 use48Bits = true; 386 return lba48_sector_count; 387 } 388 389 use48Bits = force ? lba48_supported : false; 390 return lba_sector_count; 391 } 392 PhysicalSectorSizeata_device_infoblock393 uint32 PhysicalSectorSize() 394 { 395 uint32 blockSize = 512; 396 if (word_106_bit_14_one && !word_106_bit_15_zero) { 397 // contains a valid block size configuration 398 if (logical_sector_not_512_bytes) 399 blockSize = logical_sector_size * 2; 400 401 if (multiple_logical_per_physical_sectors) 402 return blockSize << logical_sectors_per_physical_sector; 403 } 404 return blockSize; 405 } 406 SectorSizeata_device_infoblock407 uint32 SectorSize() 408 { 409 if (word_106_bit_14_one && !word_106_bit_15_zero) { 410 // contains a valid block size configuration 411 if (logical_sector_not_512_bytes) 412 return logical_sector_size * 2; 413 } 414 return 512; 415 } 416 BlockOffsetata_device_infoblock417 uint32 BlockOffset() 418 { 419 if (word_209_bit_14_one && !word_209_bit_15_zero) { 420 // contains a valid logical block offset configuration 421 return logical_sector_offset; 422 } 423 return 0; 424 } 425 } _PACKED ata_device_infoblock; 426 427 428 #endif // ATA_INFOBLOCK_H 429