| | 1 | /** @file\r |
| | 2 | The EFI Legacy BIOS Patform Protocol is used to mate a Legacy16\r |
| | 3 | implementation with this EFI code. The EFI driver that produces\r |
| | 4 | the Legacy BIOS protocol is generic and consumes this protocol.\r |
| | 5 | A driver that matches the Legacy16 produces this protocol\r |
| | 6 | \r |
| | 7 | Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>\r |
| | 8 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| | 9 | \r |
| | 10 | @par Revision Reference:\r |
| | 11 | This protocol is defined in Framework for EFI Compatibility Support Module spec\r |
| | 12 | Version 0.97.\r |
| | 13 | \r |
| | 14 | **/\r |
| | 15 | \r |
| | 16 | #ifndef _EFI_LEGACY_BIOS_PLATFORM_H_\r |
| | 17 | #define _EFI_LEGACY_BIOS_PLATFORM_H_\r |
| | 18 | \r |
| | 19 | ///\r |
| | 20 | /// Legacy BIOS Platform depends on HDD_INFO and EFI_COMPATIBILITY16_TABLE that\r |
| | 21 | /// are defined with the Legacy BIOS Protocol\r |
| | 22 | ///\r |
| | 23 | #include <Protocol/LegacyBios.h>\r |
| | 24 | \r |
| | 25 | #define EFI_LEGACY_BIOS_PLATFORM_PROTOCOL_GUID \\r |
| | 26 | { \\r |
| | 27 | 0x783658a3, 0x4172, 0x4421, {0xa2, 0x99, 0xe0, 0x9, 0x7, 0x9c, 0xc, 0xb4 } \\r |
| | 28 | }\r |
| | 29 | \r |
| | 30 | typedef struct _EFI_LEGACY_BIOS_PLATFORM_PROTOCOL EFI_LEGACY_BIOS_PLATFORM_PROTOCOL;\r |
| | 31 | \r |
| | 32 | /**\r |
| | 33 | This enum specifies the Mode param values for GetPlatformInfo()\r |
| | 34 | **/\r |
| | 35 | typedef enum {\r |
| | 36 | ///\r |
| | 37 | /// This mode is invoked twice. The first invocation has LegacySegment and\r |
| | 38 | /// LegacyOffset set to 0. The mode returns the MP table address in EFI memory, along with its size.\r |
| | 39 | /// The second invocation has LegacySegment and LegacyOffset set to the location\r |
| | 40 | /// in the 0xF0000 or 0xE0000 block to which the MP table is to be copied. The second\r |
| | 41 | /// invocation allows any MP table address fixes to occur in the EFI memory copy of the\r |
| | 42 | /// MP table. The caller, not EfiGetPlatformBinaryMpTable, copies the modified MP\r |
| | 43 | /// table to the allocated region in 0xF0000 or 0xE0000 block after the second invocation.\r |
| | 44 | ///\r |
| | 45 | /// The function parameters associated with this mode are:\r |
| | 46 | ///\r |
| | 47 | /// Table Pointer to the MP table.\r |
| | 48 | ///\r |
| | 49 | /// TableSize Size in bytes of the MP table.\r |
| | 50 | ///\r |
| | 51 | /// Location Location to place table. 0x00. Either 0xE0000 or 0xF0000 64 KB blocks.\r |
| | 52 | /// Bit 0 = 1 0xF0000 64 KB block.\r |
| | 53 | /// Bit 1 = 1 0xE0000 64 KB block.\r |
| | 54 | /// Multiple bits can be set.\r |
| | 55 | ///\r |
| | 56 | /// Alignment Bit-mapped address alignment granularity.\r |
| | 57 | /// The first nonzero bit from the right is the address granularity.\r |
| | 58 | ///\r |
| | 59 | // LegacySegment Segment in which EfiCompatibility code will place the MP table.\r |
| | 60 | ///\r |
| | 61 | /// LegacyOffset Offset in which EfiCompatibility code will place the MP table.\r |
| | 62 | ///\r |
| | 63 | /// The return values associated with this mode are:\r |
| | 64 | ///\r |
| | 65 | /// EFI_SUCCESS The MP table was returned.\r |
| | 66 | ///\r |
| | 67 | /// EFI_UNSUPPORTED The MP table is not supported on this platform.\r |
| | 68 | ///\r |
| | 69 | EfiGetPlatformBinaryMpTable = 0,\r |
| | 70 | ///\r |
| | 71 | /// This mode returns a block of data. The content and usage is IBV or OEM defined.\r |
| | 72 | /// OEMs or IBVs normally use this function for nonstandard Compatibility16 runtime soft\r |
| | 73 | /// INTs. It is the responsibility of this routine to coalesce multiple OEM 16 bit functions, if\r |
| | 74 | /// they exist, into one coherent package that is understandable by the Compatibility16 code.\r |
| | 75 | /// This function is invoked twice. The first invocation has LegacySegment and\r |
| | 76 | /// LegacyOffset set to 0. The function returns the table address in EFI memory, as well as its size.\r |
| | 77 | /// The second invocation has LegacySegment and LegacyOffset set to the location\r |
| | 78 | /// in the 0xF0000 or 0xE0000 block to which the data (table) is to be copied. The second\r |
| | 79 | /// invocation allows any data (table) address fixes to occur in the EFI memory copy of\r |
| | 80 | /// the table. The caller, not GetOemIntData(), copies the modified data (table) to the\r |
| | 81 | /// allocated region in 0xF0000 or 0xE0000 block after the second invocation.\r |
| | 82 | ///\r |
| | 83 | /// The function parameters associated with this mode are:\r |
| | 84 | ///\r |
| | 85 | /// Table Pointer to OEM legacy 16 bit code or data.\r |
| | 86 | ///\r |
| | 87 | /// TableSize Size of data.\r |
| | 88 | ///\r |
| | 89 | /// Location Location to place table. 0x00. Either 0xE0000 or 0xF0000 64 KB blocks.\r |
| | 90 | /// Bit 0 = 1 0xF0000 64 KB block.\r |
| | 91 | /// Bit 1 = 1 0xE0000 64 KB block.\r |
| | 92 | /// Multiple bits can be set.\r |
| | 93 | ///\r |
| | 94 | /// Alignment Bit mapped address alignment granularity.\r |
| | 95 | /// The first nonzero bit from the right is the address granularity.\r |
| | 96 | ///\r |
| | 97 | /// LegacySegment Segment in which EfiCompatibility code will place the table or data.\r |
| | 98 | ///\r |
| | 99 | /// LegacyOffset Offset in which EfiCompatibility code will place the table or data.\r |
| | 100 | ///\r |
| | 101 | /// The return values associated with this mode are:\r |
| | 102 | ///\r |
| | 103 | /// EFI_SUCCESS The data was returned successfully.\r |
| | 104 | ///\r |
| | 105 | /// EFI_UNSUPPORTED Oem INT is not supported on this platform.\r |
| | 106 | ///\r |
| | 107 | EfiGetPlatformBinaryOemIntData = 1,\r |
| | 108 | ///\r |
| | 109 | /// This mode returns a block of data. The content and usage is IBV defined. OEMs or\r |
| | 110 | /// IBVs normally use this mode for nonstandard Compatibility16 runtime 16 bit routines. It\r |
| | 111 | /// is the responsibility of this routine to coalesce multiple OEM 16 bit functions, if they\r |
| | 112 | /// exist, into one coherent package that is understandable by the Compatibility16 code.\r |
| | 113 | ///\r |
| | 114 | /// Example usage: A legacy mobile BIOS that has a pre-existing runtime\r |
| | 115 | /// interface to return the battery status to calling applications.\r |
| | 116 | ///\r |
| | 117 | /// This mode is invoked twice. The first invocation has LegacySegment and\r |
| | 118 | /// LegacyOffset set to 0. The mode returns the table address in EFI memory and its size.\r |
| | 119 | /// The second invocation has LegacySegment and LegacyOffset set to the location\r |
| | 120 | /// in the 0xF0000 or 0xE0000 block to which the table is to be copied. The second\r |
| | 121 | /// invocation allows any table address fixes to occur in the EFI memory copy of the table.\r |
| | 122 | /// The caller, not EfiGetPlatformBinaryOem16Data, copies the modified table to\r |
| | 123 | /// the allocated region in 0xF0000 or 0xE0000 block after the second invocation.\r |
| | 124 | ///\r |
| | 125 | /// The function parameters associated with this mode are:\r |
| | 126 | ///\r |
| | 127 | /// Table Pointer to OEM legacy 16 bit code or data.\r |
| | 128 | ///\r |
| | 129 | /// TableSize Size of data.\r |
| | 130 | ///\r |
| | 131 | /// Location Location to place the table. 0x00. Either 0xE0000 or 0xF0000 64 KB blocks.\r |
| | 132 | /// Bit 0 = 1 0xF0000 64 KB block.\r |
| | 133 | /// Bit 1 = 1 0xE0000 64 KB block.\r |
| | 134 | /// Multiple bits can be set.\r |
| | 135 | ///\r |
| | 136 | /// Alignment Bit mapped address alignment granularity.\r |
| | 137 | /// The first nonzero bit from the right is the address granularity.\r |
| | 138 | ///\r |
| | 139 | /// LegacySegment Segment in which EfiCompatibility code will place the table or data.\r |
| | 140 | ///\r |
| | 141 | /// LegacyOffset Offset in which EfiCompatibility code will place the table or data.\r |
| | 142 | ///\r |
| | 143 | /// The return values associated with this mode are:\r |
| | 144 | ///\r |
| | 145 | /// EFI_SUCCESS The data was returned successfully.\r |
| | 146 | ///\r |
| | 147 | /// EFI_UNSUPPORTED Oem16 is not supported on this platform.\r |
| | 148 | ///\r |
| | 149 | EfiGetPlatformBinaryOem16Data = 2,\r |
| | 150 | ///\r |
| | 151 | /// This mode returns a block of data. The content and usage are IBV defined. OEMs or\r |
| | 152 | /// IBVs normally use this mode for nonstandard Compatibility16 runtime 32 bit routines. It\r |
| | 153 | /// is the responsibility of this routine to coalesce multiple OEM 32 bit functions, if they\r |
| | 154 | /// exist, into one coherent package that is understandable by the Compatibility16 code.\r |
| | 155 | ///\r |
| | 156 | /// Example usage: A legacy mobile BIOS that has a pre existing runtime\r |
| | 157 | /// interface to return the battery status to calling applications.\r |
| | 158 | ///\r |
| | 159 | /// This mode is invoked twice. The first invocation has LegacySegment and\r |
| | 160 | /// LegacyOffset set to 0. The mode returns the table address in EFI memory and its size.\r |
| | 161 | ///\r |
| | 162 | /// The second invocation has LegacySegment and LegacyOffset set to the location\r |
| | 163 | /// in the 0xF0000 or 0xE0000 block to which the table is to be copied. The second\r |
| | 164 | /// invocation allows any table address fix ups to occur in the EFI memory copy of the table.\r |
| | 165 | /// The caller, not EfiGetPlatformBinaryOem32Data, copies the modified table to\r |
| | 166 | /// the allocated region in 0xF0000 or 0xE0000 block after the second invocation..\r |
| | 167 | ///\r |
| | 168 | /// Note: There are two generic mechanisms by which this mode can be used.\r |
| | 169 | /// Mechanism 1: This mode returns the data and the Legacy BIOS Protocol copies\r |
| | 170 | /// the data into the F0000 or E0000 block in the Compatibility16 code. The\r |
| | 171 | /// EFI_COMPATIBILITY16_TABLE entries Oem32Segment and Oem32Offset can\r |
| | 172 | /// be viewed as two UINT16 entries.\r |
| | 173 | /// Mechanism 2: This mode directly fills in the EFI_COMPATIBILITY16_TABLE with\r |
| | 174 | /// a pointer to the INT15 E820 region containing the 32 bit code. It returns\r |
| | 175 | /// EFI_UNSUPPORTED. The EFI_COMPATIBILITY16_TABLE entries,\r |
| | 176 | /// Oem32Segment and Oem32Offset, can be viewed as two UINT16 entries or\r |
| | 177 | /// as a single UINT32 entry as determined by the IBV.\r |
| | 178 | ///\r |
| | 179 | /// The function parameters associated with this mode are:\r |
| | 180 | ///\r |
| | 181 | /// TableSize Size of data.\r |
| | 182 | ///\r |
| | 183 | /// Location Location to place the table. 0x00 or 0xE0000 or 0xF0000 64 KB blocks.\r |
| | 184 | /// Bit 0 = 1 0xF0000 64 KB block.\r |
| | 185 | /// Bit 1 = 1 0xE0000 64 KB block.\r |
| | 186 | /// Multiple bits can be set.\r |
| | 187 | ///\r |
| | 188 | /// Alignment Bit mapped address alignment granularity.\r |
| | 189 | /// The first nonzero bit from the right is the address granularity.\r |
| | 190 | ///\r |
| | 191 | /// LegacySegment Segment in which EfiCompatibility code will place the table or data.\r |
| | 192 | ///\r |
| | 193 | /// LegacyOffset Offset in which EfiCompatibility code will place the table or data.\r |
| | 194 | ///\r |
| | 195 | /// The return values associated with this mode are:\r |
| | 196 | /// EFI_SUCCESS The data was returned successfully.\r |
| | 197 | /// EFI_UNSUPPORTED Oem32 is not supported on this platform.\r |
| | 198 | ///\r |
| | 199 | EfiGetPlatformBinaryOem32Data = 3,\r |
| | 200 | ///\r |
| | 201 | /// This mode returns a TPM binary image for the onboard TPM device.\r |
| | 202 | ///\r |
| | 203 | /// The function parameters associated with this mode are:\r |
| | 204 | ///\r |
| | 205 | /// Table TPM binary image for the onboard TPM device.\r |
| | 206 | ///\r |
| | 207 | /// TableSize Size of BinaryImage in bytes.\r |
| | 208 | ///\r |
| | 209 | /// Location Location to place the table. 0x00. Either 0xE0000 or 0xF0000 64 KB blocks.\r |
| | 210 | /// Bit 0 = 1 0xF0000 64 KB block.\r |
| | 211 | /// Bit 1 = 1 0xE0000 64 KB block.\r |
| | 212 | /// Multiple bits can be set.\r |
| | 213 | ///\r |
| | 214 | /// Alignment Bit mapped address alignment granularity.\r |
| | 215 | /// The first nonzero bit from the right is the address granularity.\r |
| | 216 | ///\r |
| | 217 | /// LegacySegment Segment in which EfiCompatibility code will place the table or data.\r |
| | 218 | ///\r |
| | 219 | /// LegacyOffset Offset in which EfiCompatibility code will place the table or data.\r |
| | 220 | ///\r |
| | 221 | /// The return values associated with this mode are:\r |
| | 222 | ///\r |
| | 223 | /// EFI_SUCCESS BinaryImage is valid.\r |
| | 224 | ///\r |
| | 225 | /// EFI_UNSUPPORTED Mode is not supported on this platform.\r |
| | 226 | ///\r |
| | 227 | /// EFI_NOT_FOUND No BinaryImage was found.\r |
| | 228 | ///\r |
| | 229 | EfiGetPlatformBinaryTpmBinary = 4,\r |
| | 230 | ///\r |
| | 231 | /// The mode finds the Compatibility16 Rom Image.\r |
| | 232 | ///\r |
| | 233 | /// The function parameters associated with this mode are:\r |
| | 234 | ///\r |
| | 235 | /// System ROM image for the platform.\r |
| | 236 | ///\r |
| | 237 | /// TableSize Size of Table in bytes.\r |
| | 238 | ///\r |
| | 239 | /// Location Ignored.\r |
| | 240 | ///\r |
| | 241 | /// Alignment Ignored.\r |
| | 242 | ///\r |
| | 243 | /// LegacySegment Ignored.\r |
| | 244 | ///\r |
| | 245 | /// LegacyOffset Ignored.\r |
| | 246 | ///\r |
| | 247 | /// The return values associated with this mode are:\r |
| | 248 | ///\r |
| | 249 | /// EFI_SUCCESS ROM image found.\r |
| | 250 | ///\r |
| | 251 | /// EFI_NOT_FOUND ROM not found.\r |
| | 252 | ///\r |
| | 253 | EfiGetPlatformBinarySystemRom = 5,\r |
| | 254 | ///\r |
| | 255 | /// This mode returns the Base address of PciExpress memory mapped configuration\r |
| | 256 | /// address space.\r |
| | 257 | ///\r |
| | 258 | /// The function parameters associated with this mode are:\r |
| | 259 | ///\r |
| | 260 | /// Table System ROM image for the platform.\r |
| | 261 | ///\r |
| | 262 | /// TableSize Size of Table in bytes.\r |
| | 263 | ///\r |
| | 264 | /// Location Ignored.\r |
| | 265 | ///\r |
| | 266 | /// Alignment Ignored.\r |
| | 267 | ///\r |
| | 268 | /// LegacySegment Ignored.\r |
| | 269 | ///\r |
| | 270 | /// LegacyOffset Ignored.\r |
| | 271 | ///\r |
| | 272 | /// The return values associated with this mode are:\r |
| | 273 | ///\r |
| | 274 | /// EFI_SUCCESS Address is valid.\r |
| | 275 | ///\r |
| | 276 | /// EFI_UNSUPPORTED System does not PciExpress.\r |
| | 277 | ///\r |
| | 278 | EfiGetPlatformPciExpressBase = 6,\r |
| | 279 | ///\r |
| | 280 | EfiGetPlatformPmmSize = 7,\r |
| | 281 | ///\r |
| | 282 | EfiGetPlatformEndOpromShadowAddr = 8,\r |
| | 283 | ///\r |
| | 284 | } EFI_GET_PLATFORM_INFO_MODE;\r |
| | 285 | \r |
| | 286 | /**\r |
| | 287 | This enum specifies the Mode param values for GetPlatformHandle().\r |
| | 288 | **/\r |
| | 289 | typedef enum {\r |
| | 290 | ///\r |
| | 291 | /// This mode returns the Compatibility16 policy for the device that should be the VGA\r |
| | 292 | /// controller used during a Compatibility16 boot.\r |
| | 293 | ///\r |
| | 294 | /// The function parameters associated with this mode are:\r |
| | 295 | ///\r |
| | 296 | /// Type 0x00.\r |
| | 297 | ///\r |
| | 298 | /// HandleBuffer Buffer of all VGA handles found.\r |
| | 299 | ///\r |
| | 300 | /// HandleCount Number of VGA handles found.\r |
| | 301 | ///\r |
| | 302 | /// AdditionalData NULL.\r |
| | 303 | ///\r |
| | 304 | EfiGetPlatformVgaHandle = 0,\r |
| | 305 | ///\r |
| | 306 | /// This mode returns the Compatibility16 policy for the device that should be the IDE\r |
| | 307 | /// controller used during a Compatibility16 boot.\r |
| | 308 | ///\r |
| | 309 | /// The function parameters associated with this mode are:\r |
| | 310 | ///\r |
| | 311 | /// Type 0x00.\r |
| | 312 | ///\r |
| | 313 | /// HandleBuffer Buffer of all IDE handles found.\r |
| | 314 | ///\r |
| | 315 | /// HandleCount Number of IDE handles found.\r |
| | 316 | ///\r |
| | 317 | /// AdditionalData Pointer to HddInfo.\r |
| | 318 | /// Information about all onboard IDE controllers.\r |
| | 319 | ///\r |
| | 320 | EfiGetPlatformIdeHandle = 1,\r |
| | 321 | ///\r |
| | 322 | /// This mode returns the Compatibility16 policy for the device that should be the ISA bus\r |
| | 323 | /// controller used during a Compatibility16 boot.\r |
| | 324 | ///\r |
| | 325 | /// The function parameters associated with this mode are:\r |
| | 326 | ///\r |
| | 327 | /// Type 0x00.\r |
| | 328 | ///\r |
| | 329 | /// HandleBuffer Buffer of all ISA bus handles found.\r |
| | 330 | ///\r |
| | 331 | /// HandleCount Number of ISA bus handles found.\r |
| | 332 | ///\r |
| | 333 | /// AdditionalData NULL.\r |
| | 334 | ///\r |
| | 335 | EfiGetPlatformIsaBusHandle = 2,\r |
| | 336 | ///\r |
| | 337 | /// This mode returns the Compatibility16 policy for the device that should be the USB\r |
| | 338 | /// device used during a Compatibility16 boot.\r |
| | 339 | ///\r |
| | 340 | /// The function parameters associated with this mode are:\r |
| | 341 | ///\r |
| | 342 | /// Type 0x00.\r |
| | 343 | ///\r |
| | 344 | /// HandleBuffer Buffer of all USB handles found.\r |
| | 345 | ///\r |
| | 346 | /// HandleCount Number of USB bus handles found.\r |
| | 347 | ///\r |
| | 348 | /// AdditionalData NULL.\r |
| | 349 | ///\r |
| | 350 | EfiGetPlatformUsbHandle = 3\r |
| | 351 | } EFI_GET_PLATFORM_HANDLE_MODE;\r |
| | 352 | \r |
| | 353 | /**\r |
| | 354 | This enum specifies the Mode param values for PlatformHooks().\r |
| | 355 | Note: Any OEM defined hooks start with 0x8000.\r |
| | 356 | **/\r |
| | 357 | typedef enum {\r |
| | 358 | ///\r |
| | 359 | /// This mode allows any preprocessing before scanning OpROMs.\r |
| | 360 | ///\r |
| | 361 | /// The function parameters associated with this mode are:\r |
| | 362 | ///\r |
| | 363 | /// Type 0.\r |
| | 364 | ///\r |
| | 365 | /// DeviceHandle Handle of device OpROM is associated with.\r |
| | 366 | ///\r |
| | 367 | /// ShadowAddress Address where OpROM is shadowed.\r |
| | 368 | ///\r |
| | 369 | /// Compatibility16Table NULL.\r |
| | 370 | ///\r |
| | 371 | /// AdditionalData NULL.\r |
| | 372 | ///\r |
| | 373 | EfiPlatformHookPrepareToScanRom = 0,\r |
| | 374 | ///\r |
| | 375 | /// This mode shadows legacy OpROMS that may not have a physical device associated with\r |
| | 376 | /// them. It returns EFI_SUCCESS if the ROM was shadowed.\r |
| | 377 | ///\r |
| | 378 | /// The function parameters associated with this mode are:\r |
| | 379 | ///\r |
| | 380 | /// Type 0.\r |
| | 381 | ///\r |
| | 382 | /// DeviceHandle 0.\r |
| | 383 | ///\r |
| | 384 | /// ShadowAddress First free OpROM area, after other OpROMs have been dispatched..\r |
| | 385 | ///\r |
| | 386 | /// Compatibility16Table Pointer to the Compatability16 Table.\r |
| | 387 | ///\r |
| | 388 | /// AdditionalData NULL.\r |
| | 389 | ///\r |
| | 390 | EfiPlatformHookShadowServiceRoms= 1,\r |
| | 391 | ///\r |
| | 392 | /// This mode allows platform to perform any required operation after an OpROM has\r |
| | 393 | /// completed its initialization.\r |
| | 394 | ///\r |
| | 395 | /// The function parameters associated with this mode are:\r |
| | 396 | ///\r |
| | 397 | /// Type 0.\r |
| | 398 | ///\r |
| | 399 | /// DeviceHandle Handle of device OpROM is associated with.\r |
| | 400 | ///\r |
| | 401 | /// ShadowAddress Address where OpROM is shadowed.\r |
| | 402 | ///\r |
| | 403 | /// Compatibility16Table NULL.\r |
| | 404 | ///\r |
| | 405 | /// AdditionalData NULL.\r |
| | 406 | ///\r |
| | 407 | EfiPlatformHookAfterRomInit = 2\r |
| | 408 | } EFI_GET_PLATFORM_HOOK_MODE;\r |
| | 409 | \r |
| | 410 | ///\r |
| | 411 | /// This IRQ has not been assigned to PCI.\r |
| | 412 | ///\r |
| | 413 | #define PCI_UNUSED 0x00\r |
| | 414 | ///\r |
| | 415 | /// This IRQ has been assigned to PCI.\r |
| | 416 | ///\r |
| | 417 | #define PCI_USED 0xFF\r |
| | 418 | ///\r |
| | 419 | /// This IRQ has been used by an SIO legacy device and cannot be used by PCI.\r |
| | 420 | ///\r |
| | 421 | #define LEGACY_USED 0xFE\r |
| | 422 | \r |
| | 423 | #pragma pack(1)\r |
| | 424 | \r |
| | 425 | typedef struct {\r |
| | 426 | ///\r |
| | 427 | /// IRQ for this entry.\r |
| | 428 | ///\r |
| | 429 | UINT8 Irq;\r |
| | 430 | ///\r |
| | 431 | /// Status of this IRQ.\r |
| | 432 | ///\r |
| | 433 | /// PCI_UNUSED 0x00. This IRQ has not been assigned to PCI.\r |
| | 434 | ///\r |
| | 435 | /// PCI_USED 0xFF. This IRQ has been assigned to PCI.\r |
| | 436 | ///\r |
| | 437 | /// LEGACY_USED 0xFE. This IRQ has been used by an SIO legacy\r |
| | 438 | /// device and cannot be used by PCI.\r |
| | 439 | ///\r |
| | 440 | UINT8 Used;\r |
| | 441 | } EFI_LEGACY_IRQ_PRIORITY_TABLE_ENTRY;\r |
| | 442 | \r |
| | 443 | //\r |
| | 444 | // Define PIR table structures\r |
| | 445 | //\r |
| | 446 | #define EFI_LEGACY_PIRQ_TABLE_SIGNATURE SIGNATURE_32 ('$', 'P', 'I', 'R')\r |
| | 447 | \r |
| | 448 | typedef struct {\r |
| | 449 | ///\r |
| | 450 | /// $PIR.\r |
| | 451 | ///\r |
| | 452 | UINT32 Signature;\r |
| | 453 | ///\r |
| | 454 | /// 0x00.\r |
| | 455 | ///\r |
| | 456 | UINT8 MinorVersion;\r |
| | 457 | ///\r |
| | 458 | /// 0x01 for table version 1.0.\r |
| | 459 | ///\r |
| | 460 | UINT8 MajorVersion;\r |
| | 461 | ///\r |
| | 462 | /// 0x20 + RoutingTableEntries * 0x10.\r |
| | 463 | ///\r |
| | 464 | UINT16 TableSize;\r |
| | 465 | ///\r |
| | 466 | /// PCI interrupt router bus.\r |
| | 467 | ///\r |
| | 468 | UINT8 Bus;\r |
| | 469 | ///\r |
| | 470 | /// PCI interrupt router device/function.\r |
| | 471 | ///\r |
| | 472 | UINT8 DevFun;\r |
| | 473 | ///\r |
| | 474 | /// If nonzero, bit map of IRQs reserved for PCI.\r |
| | 475 | ///\r |
| | 476 | UINT16 PciOnlyIrq;\r |
| | 477 | ///\r |
| | 478 | /// Vendor ID of a compatible PCI interrupt router.\r |
| | 479 | ///\r |
| | 480 | UINT16 CompatibleVid;\r |
| | 481 | ///\r |
| | 482 | /// Device ID of a compatible PCI interrupt router.\r |
| | 483 | ///\r |
| | 484 | UINT16 CompatibleDid;\r |
| | 485 | ///\r |
| | 486 | /// If nonzero, a value passed directly to the IRQ miniport's Initialize function.\r |
| | 487 | ///\r |
| | 488 | UINT32 Miniport;\r |
| | 489 | ///\r |
| | 490 | /// Reserved for future usage.\r |
| | 491 | ///\r |
| | 492 | UINT8 Reserved[11];\r |
| | 493 | ///\r |
| | 494 | /// This byte plus the sum of all other bytes in the LocalPirqTable equal 0x00.\r |
| | 495 | ///\r |
| | 496 | UINT8 Checksum;\r |
| | 497 | } EFI_LEGACY_PIRQ_TABLE_HEADER;\r |
| | 498 | \r |
| | 499 | \r |
| | 500 | typedef struct {\r |
| | 501 | ///\r |
| | 502 | /// If nonzero, a value assigned by the IBV.\r |
| | 503 | ///\r |
| | 504 | UINT8 Pirq;\r |
| | 505 | ///\r |
| | 506 | /// If nonzero, the IRQs that can be assigned to this device.\r |
| | 507 | ///\r |
| | 508 | UINT16 IrqMask;\r |
| | 509 | } EFI_LEGACY_PIRQ_ENTRY;\r |
| | 510 | \r |
| | 511 | typedef struct {\r |
| | 512 | ///\r |
| | 513 | /// PCI bus of the entry.\r |
| | 514 | ///\r |
| | 515 | UINT8 Bus;\r |
| | 516 | ///\r |
| | 517 | /// PCI device of this entry.\r |
| | 518 | ///\r |
| | 519 | UINT8 Device;\r |
| | 520 | ///\r |
| | 521 | /// An IBV value and IRQ mask for PIRQ pins A through D.\r |
| | 522 | ///\r |
| | 523 | EFI_LEGACY_PIRQ_ENTRY PirqEntry[4];\r |
| | 524 | ///\r |
| | 525 | /// If nonzero, the slot number assigned by the board manufacturer.\r |
| | 526 | ///\r |
| | 527 | UINT8 Slot;\r |
| | 528 | ///\r |
| | 529 | /// Reserved for future use.\r |
| | 530 | ///\r |
| | 531 | UINT8 Reserved;\r |
| | 532 | } EFI_LEGACY_IRQ_ROUTING_ENTRY;\r |
| | 533 | \r |
| | 534 | #pragma pack()\r |
| | 535 | \r |
| | 536 | \r |
| | 537 | /**\r |
| | 538 | Finds the binary data or other platform information.\r |
| | 539 | \r |
| | 540 | @param This The protocol instance pointer.\r |
| | 541 | @param Mode Specifies what data to return. See See EFI_GET_PLATFORM_INFO_MODE enum.\r |
| | 542 | @param Table Mode specific. See EFI_GET_PLATFORM_INFO_MODE enum.\r |
| | 543 | @param TableSize Mode specific. See EFI_GET_PLATFORM_INFO_MODE enum.\r |
| | 544 | @param Location Mode specific. See EFI_GET_PLATFORM_INFO_MODE enum.\r |
| | 545 | @param Alignment Mode specific. See EFI_GET_PLATFORM_INFO_MODE enum.\r |
| | 546 | @param LegacySegment Mode specific. See EFI_GET_PLATFORM_INFO_MODE enum.\r |
| | 547 | @param LegacyOffset Mode specific. See EFI_GET_PLATFORM_INFO_MODE enum.\r |
| | 548 | \r |
| | 549 | @retval EFI_SUCCESS Data returned successfully.\r |
| | 550 | @retval EFI_UNSUPPORTED Mode is not supported on the platform.\r |
| | 551 | @retval EFI_NOT_FOUND Binary image or table not found.\r |
| | 552 | \r |
| | 553 | **/\r |
| | 554 | typedef\r |
| | 555 | EFI_STATUS\r |
| | 556 | (EFIAPI *EFI_LEGACY_BIOS_PLATFORM_GET_PLATFORM_INFO)(\r |
| | 557 | IN EFI_LEGACY_BIOS_PLATFORM_PROTOCOL *This,\r |
| | 558 | IN EFI_GET_PLATFORM_INFO_MODE Mode,\r |
| | 559 | OUT VOID **Table,\r |
| | 560 | OUT UINTN *TableSize,\r |
| | 561 | OUT UINTN *Location,\r |
| | 562 | OUT UINTN *Alignment,\r |
| | 563 | IN UINT16 LegacySegment,\r |
| | 564 | IN UINT16 LegacyOffset\r |
| | 565 | );\r |
| | 566 | \r |
| | 567 | /**\r |
| | 568 | Returns a buffer of handles for the requested subfunction.\r |
| | 569 | \r |
| | 570 | @param This The protocol instance pointer.\r |
| | 571 | @param Mode Specifies what handle to return. See EFI_GET_PLATFORM_HANDLE_MODE enum.\r |
| | 572 | @param Type Mode specific. See EFI_GET_PLATFORM_HANDLE_MODE enum.\r |
| | 573 | @param HandleBuffer Mode specific. See EFI_GET_PLATFORM_HANDLE_MODE enum.\r |
| | 574 | @param HandleCount Mode specific. See EFI_GET_PLATFORM_HANDLE_MODE enum.\r |
| | 575 | @param AdditionalData Mode specific. See EFI_GET_PLATFORM_HANDLE_MODE enum.\r |
| | 576 | \r |
| | 577 | @retval EFI_SUCCESS Handle is valid.\r |
| | 578 | @retval EFI_UNSUPPORTED Mode is not supported on the platform.\r |
| | 579 | @retval EFI_NOT_FOUND Handle is not known.\r |
| | 580 | \r |
| | 581 | **/\r |
| | 582 | typedef\r |
| | 583 | EFI_STATUS\r |
| | 584 | (EFIAPI *EFI_LEGACY_BIOS_PLATFORM_GET_PLATFORM_HANDLE)(\r |
| | 585 | IN EFI_LEGACY_BIOS_PLATFORM_PROTOCOL *This,\r |
| | 586 | IN EFI_GET_PLATFORM_HANDLE_MODE Mode,\r |
| | 587 | IN UINT16 Type,\r |
| | 588 | OUT EFI_HANDLE **HandleBuffer,\r |
| | 589 | OUT UINTN *HandleCount,\r |
| | 590 | IN VOID **AdditionalData OPTIONAL\r |
| | 591 | );\r |
| | 592 | \r |
| | 593 | /**\r |
| | 594 | Load and initialize the Legacy BIOS SMM handler.\r |
| | 595 | \r |
| | 596 | @param This The protocol instance pointer.\r |
| | 597 | @param EfiToLegacy16BootTable A pointer to Legacy16 boot table.\r |
| | 598 | \r |
| | 599 | @retval EFI_SUCCESS SMM code loaded.\r |
| | 600 | @retval EFI_DEVICE_ERROR SMM code failed to load\r |
| | 601 | \r |
| | 602 | **/\r |
| | 603 | typedef\r |
| | 604 | EFI_STATUS\r |
| | 605 | (EFIAPI *EFI_LEGACY_BIOS_PLATFORM_SMM_INIT)(\r |
| | 606 | IN EFI_LEGACY_BIOS_PLATFORM_PROTOCOL *This,\r |
| | 607 | IN VOID *EfiToLegacy16BootTable\r |
| | 608 | );\r |
| | 609 | \r |
| | 610 | /**\r |
| | 611 | Allows platform to perform any required action after a LegacyBios operation.\r |
| | 612 | Invokes the specific sub function specified by Mode.\r |
| | 613 | \r |
| | 614 | @param This The protocol instance pointer.\r |
| | 615 | @param Mode Specifies what handle to return. See EFI_GET_PLATFORM_HOOK_MODE enum.\r |
| | 616 | @param Type Mode specific. See EFI_GET_PLATFORM_HOOK_MODE enum.\r |
| | 617 | @param DeviceHandle Mode specific. See EFI_GET_PLATFORM_HOOK_MODE enum.\r |
| | 618 | @param ShadowAddress Mode specific. See EFI_GET_PLATFORM_HOOK_MODE enum.\r |
| | 619 | @param Compatibility16Table Mode specific. See EFI_GET_PLATFORM_HOOK_MODE enum.\r |
| | 620 | @param AdditionalData Mode specific. See EFI_GET_PLATFORM_HOOK_MODE enum.\r |
| | 621 | \r |
| | 622 | @retval EFI_SUCCESS The operation performed successfully. Mode specific.\r |
| | 623 | @retval EFI_UNSUPPORTED Mode is not supported on the platform.\r |
| | 624 | \r |
| | 625 | **/\r |
| | 626 | typedef\r |
| | 627 | EFI_STATUS\r |
| | 628 | (EFIAPI *EFI_LEGACY_BIOS_PLATFORM_HOOKS)(\r |
| | 629 | IN EFI_LEGACY_BIOS_PLATFORM_PROTOCOL *This,\r |
| | 630 | IN EFI_GET_PLATFORM_HOOK_MODE Mode,\r |
| | 631 | IN UINT16 Type,\r |
| | 632 | IN EFI_HANDLE DeviceHandle, OPTIONAL\r |
| | 633 | IN OUT UINTN *ShadowAddress, OPTIONAL\r |
| | 634 | IN EFI_COMPATIBILITY16_TABLE *Compatibility16Table, OPTIONAL\r |
| | 635 | OUT VOID **AdditionalData OPTIONAL\r |
| | 636 | );\r |
| | 637 | \r |
| | 638 | /**\r |
| | 639 | Returns information associated with PCI IRQ routing.\r |
| | 640 | This function returns the following information associated with PCI IRQ routing:\r |
| | 641 | * An IRQ routing table and number of entries in the table.\r |
| | 642 | * The $PIR table and its size.\r |
| | 643 | * A list of PCI IRQs and the priority order to assign them.\r |
| | 644 | \r |
| | 645 | @param This The protocol instance pointer.\r |
| | 646 | @param RoutingTable The pointer to PCI IRQ Routing table.\r |
| | 647 | This location is the $PIR table minus the header.\r |
| | 648 | @param RoutingTableEntries The number of entries in table.\r |
| | 649 | @param LocalPirqTable $PIR table.\r |
| | 650 | @param PirqTableSize $PIR table size.\r |
| | 651 | @param LocalIrqPriorityTable A list of interrupts in priority order to assign.\r |
| | 652 | @param IrqPriorityTableEntries The number of entries in the priority table.\r |
| | 653 | \r |
| | 654 | @retval EFI_SUCCESS Data was successfully returned.\r |
| | 655 | \r |
| | 656 | **/\r |
| | 657 | typedef\r |
| | 658 | EFI_STATUS\r |
| | 659 | (EFIAPI *EFI_LEGACY_BIOS_PLATFORM_GET_ROUTING_TABLE)(\r |
| | 660 | IN EFI_LEGACY_BIOS_PLATFORM_PROTOCOL *This,\r |
| | 661 | OUT VOID **RoutingTable,\r |
| | 662 | OUT UINTN *RoutingTableEntries,\r |
| | 663 | OUT VOID **LocalPirqTable, OPTIONAL\r |
| | 664 | OUT UINTN *PirqTableSize, OPTIONAL\r |
| | 665 | OUT VOID **LocalIrqPriorityTable, OPTIONAL\r |
| | 666 | OUT UINTN *IrqPriorityTableEntries OPTIONAL\r |
| | 667 | );\r |
| | 668 | \r |
| | 669 | /**\r |
| | 670 | Translates the given PIRQ accounting for bridge.\r |
| | 671 | This function translates the given PIRQ back through all buses, if required,\r |
| | 672 | and returns the true PIRQ and associated IRQ.\r |
| | 673 | \r |
| | 674 | @param This The protocol instance pointer.\r |
| | 675 | @param PciBus The PCI bus number for this device.\r |
| | 676 | @param PciDevice The PCI device number for this device.\r |
| | 677 | @param PciFunction The PCI function number for this device.\r |
| | 678 | @param Pirq Input is PIRQ reported by device, and output is true PIRQ.\r |
| | 679 | @param PciIrq The IRQ already assigned to the PIRQ, or the IRQ to be\r |
| | 680 | assigned to the PIRQ.\r |
| | 681 | \r |
| | 682 | @retval EFI_SUCCESS The PIRQ was translated.\r |
| | 683 | \r |
| | 684 | **/\r |
| | 685 | typedef\r |
| | 686 | EFI_STATUS\r |
| | 687 | (EFIAPI *EFI_LEGACY_BIOS_PLATFORM_TRANSLATE_PIRQ)(\r |
| | 688 | IN EFI_LEGACY_BIOS_PLATFORM_PROTOCOL *This,\r |
| | 689 | IN UINTN PciBus,\r |
| | 690 | IN UINTN PciDevice,\r |
| | 691 | IN UINTN PciFunction,\r |
| | 692 | IN OUT UINT8 *Pirq,\r |
| | 693 | OUT UINT8 *PciIrq\r |
| | 694 | );\r |
| | 695 | \r |
| | 696 | /**\r |
| | 697 | Attempt to legacy boot the BootOption. If the EFI contexted has been\r |
| | 698 | compromised this function will not return.\r |
| | 699 | \r |
| | 700 | @param This The protocol instance pointer.\r |
| | 701 | @param BbsDevicePath The EFI Device Path from BootXXXX variable.\r |
| | 702 | @param BbsTable The Internal BBS table.\r |
| | 703 | @param LoadOptionSize The size of LoadOption in size.\r |
| | 704 | @param LoadOption The LoadOption from BootXXXX variable\r |
| | 705 | @param EfiToLegacy16BootTable A pointer to BootTable structure\r |
| | 706 | \r |
| | 707 | @retval EFI_SUCCESS Ready to boot.\r |
| | 708 | \r |
| | 709 | **/\r |
| | 710 | typedef\r |
| | 711 | EFI_STATUS\r |
| | 712 | (EFIAPI *EFI_LEGACY_BIOS_PLATFORM_PREPARE_TO_BOOT)(\r |
| | 713 | IN EFI_LEGACY_BIOS_PLATFORM_PROTOCOL *This,\r |
| | 714 | IN BBS_BBS_DEVICE_PATH *BbsDevicePath,\r |
| | 715 | IN VOID *BbsTable,\r |
| | 716 | IN UINT32 LoadOptionsSize,\r |
| | 717 | IN VOID *LoadOptions,\r |
| | 718 | IN VOID *EfiToLegacy16BootTable\r |
| | 719 | );\r |
| | 720 | \r |
| | 721 | /**\r |
| | 722 | This protocol abstracts the platform portion of the traditional BIOS.\r |
| | 723 | **/\r |
| | 724 | struct _EFI_LEGACY_BIOS_PLATFORM_PROTOCOL {\r |
| | 725 | ///\r |
| | 726 | /// Gets binary data or other platform information.\r |
| | 727 | ///\r |
| | 728 | EFI_LEGACY_BIOS_PLATFORM_GET_PLATFORM_INFO GetPlatformInfo;\r |
| | 729 | ///\r |
| | 730 | /// Returns a buffer of all handles matching the requested subfunction.\r |
| | 731 | ///\r |
| | 732 | EFI_LEGACY_BIOS_PLATFORM_GET_PLATFORM_HANDLE GetPlatformHandle;\r |
| | 733 | ///\r |
| | 734 | /// Loads and initializes the traditional BIOS SMM handler.\r |
| | 735 | EFI_LEGACY_BIOS_PLATFORM_SMM_INIT SmmInit;\r |
| | 736 | ///\r |
| | 737 | /// Allows platform to perform any required actions after a LegacyBios operation.\r |
| | 738 | ///\r |
| | 739 | EFI_LEGACY_BIOS_PLATFORM_HOOKS PlatformHooks;\r |
| | 740 | ///\r |
| | 741 | /// Gets $PIR table.\r |
| | 742 | EFI_LEGACY_BIOS_PLATFORM_GET_ROUTING_TABLE GetRoutingTable;\r |
| | 743 | ///\r |
| | 744 | /// Translates the given PIRQ to the final value after traversing any PCI bridges.\r |
| | 745 | ///\r |
| | 746 | EFI_LEGACY_BIOS_PLATFORM_TRANSLATE_PIRQ TranslatePirq;\r |
| | 747 | ///\r |
| | 748 | /// Final platform function before the system attempts to boot to a traditional OS.\r |
| | 749 | ///\r |
| | 750 | EFI_LEGACY_BIOS_PLATFORM_PREPARE_TO_BOOT PrepareToBoot;\r |
| | 751 | };\r |
| | 752 | \r |
| | 753 | extern EFI_GUID gEfiLegacyBiosPlatformProtocolGuid;\r |
| | 754 | \r |
| | 755 | #endif\r |
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