1 /* 2 * Copyright 2010-2013, 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 LBITFIELD8( 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 LBITFIELD8( 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 LBITFIELD2( 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 LBITFIELD9( 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 LBITFIELD5( 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 LBITFIELD4( 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 LBITFIELD3( 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 LBITFIELD8( 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 LBITFIELD2( 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 uint16 word_69_70_reserved[2]; 128 uint16 atapi_packet_received_to_bus_release_time_ns; 129 uint16 atapi_service_command_to_busy_clear_time_ns; 130 uint16 word_71_74_reserved[2]; 131 132 LBITFIELD2( 133 max_queue_depth_minus_one : 5, 134 word_75_bit_5_15_reserved : 11 135 ); 136 137 uint16 word_76_79_reserved[4]; 138 139 LBITFIELD15( 140 word_80_bit_0_reserved : 1, 141 word_80_bot_1_2_obsolete : 2, 142 supports_ata_3 : 1, 143 supports_ata_atapi_4 : 1, 144 supports_ata_atapi_5 : 1, 145 supports_ata_atapi_6 : 1, 146 supports_ata_atapi_7 : 1, 147 supports_ata_atapi_8 : 1, 148 supports_ata_atapi_9 : 1, 149 supports_ata_atapi_10 : 1, 150 supports_ata_atapi_11 : 1, 151 supports_ata_atapi_12 : 1, 152 supports_ata_atapi_13 : 1, 153 supports_ata_atapi_14 : 1, 154 word_80_bit_15_reserved : 1 155 ); 156 157 uint16 minor_version; 158 159 LBITFIELD16( 160 smart_supported : 1, 161 security_mode_supported : 1, 162 removable_media_supported : 1, 163 mandatory_power_management_supported : 1, 164 packet_supported : 1, 165 write_cache_supported : 1, 166 look_ahead_supported : 1, 167 release_interrupt_supported : 1, 168 service_interrupt_supported : 1, 169 device_reset_supported : 1, 170 host_protected_area_supported : 1, 171 word_82_bit_11_obsolete : 1, 172 write_buffer_command_supported : 1, 173 read_buffer_command_supported : 1, 174 nop_supported : 1, 175 word_82_bit_15_obsolete : 1 176 ); 177 178 LBITFIELD16( 179 download_microcode_supported : 1, 180 read_write_dma_queued_supported : 1, 181 compact_flash_assoc_supported : 1, 182 advanced_power_management_supported : 1, 183 removable_media_status_supported : 1, 184 power_up_in_standby_supported : 1, 185 set_features_required_for_spinup : 1, 186 word_83_bit_7_reserved : 1, 187 set_max_security_extension_supported : 1, 188 automatic_acoustic_management_supported : 1, 189 lba48_supported : 1, 190 device_configuration_overlay_supported : 1, 191 mandatory_flush_cache_supported : 1, 192 flush_cache_ext_supported : 1, 193 word_83_bit_14_one : 1, 194 word_83_bit_15_zero : 1 195 ); 196 197 LBITFIELD9( 198 smart_error_logging_supported : 1, 199 smart_self_test_supported : 1, 200 media_serial_number_supported : 1, 201 media_card_pass_through_supported : 1, 202 word_84_bit_4_reserved : 1, 203 general_purpose_logging_supported : 1, 204 word_84_bit_6_13_reserved : 8, 205 word_84_bit_14_one : 1, 206 word_84_bit_15_zero : 1 207 ); 208 209 LBITFIELD16( 210 smart_enabled : 1, 211 security_mode_enabled : 1, 212 removable_media_enabled : 1, 213 mandatory_power_management_enabled : 1, 214 packet_enabled : 1, 215 write_cache_enabled : 1, 216 look_ahead_enabled : 1, 217 release_interrupt_enabled : 1, 218 service_interrupt_enabled : 1, 219 device_reset_enabled : 1, 220 host_protected_area_enabled : 1, 221 word_85_bit_11_obsolete : 1, 222 write_buffer_command_enabled : 1, 223 read_buffer_command_enabled : 1, 224 nop_enabled : 1, 225 word_85_bit_15_obsolete : 1 226 ); 227 228 LBITFIELD15( 229 download_microcode_supported_2 : 1, 230 read_write_dma_queued_supported_2 : 1, 231 compact_flash_assoc_enabled : 1, 232 advanced_power_management_enabled : 1, 233 removable_media_status_enabled : 1, 234 power_up_in_standby_enabled : 1, 235 set_features_required_for_spinup_2 : 1, 236 word_86_bit_7_reserved : 1, 237 set_max_security_extension_enabled : 1, 238 automatic_acoustic_management_enabled : 1, 239 lba48_supported_2 : 1, 240 device_configuration_overlay_supported_2: 1, 241 mandatory_flush_cache_supported_2 : 1, 242 flush_cache_ext_supported_2 : 1, 243 word_86_bit_14_15_reserved : 2 244 ); 245 246 LBITFIELD9( 247 smart_error_logging_supported_2 : 1, 248 smart_self_test_supported_2 : 1, 249 media_serial_number_valid : 1, 250 media_card_pass_through_enabled : 1, 251 word_87_bit_4_reserved : 1, 252 general_purpose_logging_supported_2 : 1, 253 word_87_bit_6_13_reserved : 8, 254 word_87_bit_14_one : 1, 255 word_87_bit_15_zero : 1 256 ); 257 258 LBITFIELD16( 259 ultra_dma_0_supported : 1, 260 ultra_dma_1_supported : 1, 261 ultra_dma_2_supported : 1, 262 ultra_dma_3_supported : 1, 263 ultra_dma_4_supported : 1, 264 ultra_dma_5_supported : 1, 265 ultra_dma_6_supported : 1, 266 word_88_bit_7_reserved : 1, 267 ultra_dma_0_selected : 1, 268 ultra_dma_1_selected : 1, 269 ultra_dma_2_selected : 1, 270 ultra_dma_3_selected : 1, 271 ultra_dma_4_selected : 1, 272 ultra_dma_5_selected : 1, 273 ultra_dma_6_selected : 1, 274 word_88_bit_15_reserved : 1 275 ); 276 277 uint16 security_erase_unit_duration; 278 uint16 enhanced_security_erase_duration; 279 uint16 current_advanced_power_management_value; 280 uint16 master_password_revision_code; 281 282 LBITFIELD5( 283 device_0_hardware_reset_result : 8, 284 device_1_hardware_reset_result : 5, 285 cable_id_detected : 1, 286 word_93_bit_14_one : 1, 287 word_93_bit_15_zero : 1 288 ); 289 290 LBITFIELD2( 291 current_acoustic_management_value : 8, 292 recommended_acoustic_management_value : 8 293 ); 294 295 uint16 word_95_99_reserved[5]; 296 uint64 lba48_sector_count; 297 uint16 word_104_105_reserved[2]; 298 299 LBITFIELD6( 300 logical_sectors_per_physical_sector : 4, // 2^x exponent 301 word_106_bit_4_11_reserved : 8, 302 logical_sector_not_512_bytes : 1, 303 multiple_logical_per_physical_sectors : 1, 304 word_106_bit_14_one : 1, 305 word_106_bit_15_zero : 1 306 ); 307 308 uint16 word_107_116_reserved[10]; 309 310 uint32 logical_sector_size; // in words, see 106 311 312 uint16 word_119_126_reserved[8]; 313 314 LBITFIELD2( 315 removable_media_status_supported_2 : 2, // 1 = supported 316 word_127_bit_2_15_reserved : 14 317 ); 318 319 LBITFIELD9( 320 security_supported : 1, 321 security_enabled : 1, 322 security_locked : 1, 323 security_frozen : 1, 324 security_count_expired : 1, 325 ehnaced_security_erase_supported : 1, 326 word_128_bit_6_7_reserved : 2, 327 security_level : 1, // 0 = high, 1 = max 328 word_128_bit_9_15 : 7 329 ); 330 331 uint16 word_129_159_vendor_specific[31]; 332 333 LBITFIELD5( 334 cfa_max_current_milli_ampers : 12, 335 cfa_power_mode_1_disabled : 1, 336 cfa_power_mode_1_required : 1, 337 word_160_bit_14_reserved : 1, 338 word_160_supported : 1 339 ); 340 341 uint16 word_161_167_reserved_compact_flash_assoc[7]; 342 LBITFIELD2( 343 device_nominal_form_factor : 4, 344 word_168_bits_4_15_reserved : 12 345 ); 346 LBITFIELD2( 347 data_set_management_support : 1, 348 word_169_bits_1_15_reserved : 15 349 ); 350 uint16 additional_product_identifier[4]; 351 uint16 word_174_175_reserved[2]; 352 uint16 current_media_serial_number[30]; 353 uint16 word_206_208_reserved[3]; 354 355 LBITFIELD3( 356 logical_sector_offset : 14, 357 word_209_bit_14_one : 1, 358 word_209_bit_15_zero : 1 359 ); 360 361 uint16 word_210_254_reserved[45]; 362 363 LBITFIELD2( 364 signature : 8, 365 checksum : 8 366 ); 367 368 uint64 SectorCount(bool& use48Bits, bool force) 369 { 370 if (lba48_supported && lba48_sector_count >= lba_sector_count) { 371 use48Bits = true; 372 return lba48_sector_count; 373 } 374 375 use48Bits = force ? lba48_supported : false; 376 return lba_sector_count; 377 } 378 379 uint32 PhysicalSectorSize() 380 { 381 uint32 blockSize = 512; 382 if (word_106_bit_14_one && !word_106_bit_15_zero) { 383 // contains a valid block size configuration 384 if (logical_sector_not_512_bytes) 385 blockSize = logical_sector_size * 2; 386 387 if (multiple_logical_per_physical_sectors) 388 return blockSize << logical_sectors_per_physical_sector; 389 } 390 return blockSize; 391 } 392 393 uint32 SectorSize() 394 { 395 if (word_106_bit_14_one && !word_106_bit_15_zero) { 396 // contains a valid block size configuration 397 if (logical_sector_not_512_bytes) 398 return logical_sector_size * 2; 399 } 400 return 512; 401 } 402 403 uint32 BlockOffset() 404 { 405 if (word_209_bit_14_one && !word_209_bit_15_zero) { 406 // contains a valid logical block offset configuration 407 return logical_sector_offset; 408 } 409 return 0; 410 } 411 } _PACKED ata_device_infoblock; 412 413 414 #endif // ATA_INFOBLOCK_H 415