| 3db51098 |
1 | /**@file\r |
| 2 | This driver produces a VGA console.\r |
| 3 | \r |
| 4 | Copyright (c) 2006, Intel Corporation \r |
| 5 | All rights reserved. This program and the accompanying materials \r |
| 6 | are licensed and made available under the terms and conditions of the BSD License \r |
| 7 | which accompanies this distribution. The full text of the license may be found at \r |
| 8 | http://opensource.org/licenses/bsd-license.php \r |
| 9 | \r |
| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r |
| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r |
| 12 | \r |
| 13 | **/\r |
| e081218d |
14 | \r |
| 15 | #include "VgaClass.h"\r |
| 16 | \r |
| 17 | //\r |
| 18 | // EFI Driver Binding Protocol for the VGA Class Driver\r |
| 19 | //\r |
| 20 | EFI_DRIVER_BINDING_PROTOCOL gVgaClassDriverBinding = {\r |
| 21 | VgaClassDriverBindingSupported,\r |
| 22 | VgaClassDriverBindingStart,\r |
| 23 | VgaClassDriverBindingStop,\r |
| 24 | 0xa,\r |
| 25 | NULL,\r |
| 26 | NULL\r |
| 27 | };\r |
| 28 | \r |
| 29 | /**\r |
| 30 | The user Entry Point for module VgaClass. The user code starts with this function.\r |
| 31 | \r |
| 32 | @param[in] ImageHandle The firmware allocated handle for the EFI image. \r |
| 33 | @param[in] SystemTable A pointer to the EFI System Table.\r |
| 34 | \r |
| 35 | @retval EFI_SUCCESS The entry point is executed successfully.\r |
| 36 | @retval other Some error occurs when executing this entry point.\r |
| 37 | \r |
| 38 | **/\r |
| 39 | EFI_STATUS\r |
| 40 | EFIAPI\r |
| 41 | InitializeVgaClass(\r |
| 42 | IN EFI_HANDLE ImageHandle,\r |
| 43 | IN EFI_SYSTEM_TABLE *SystemTable\r |
| 44 | )\r |
| 45 | {\r |
| 46 | EFI_STATUS Status;\r |
| 47 | \r |
| 48 | //\r |
| 49 | // Install driver model protocol(s).\r |
| 50 | //\r |
| 51 | Status = EfiLibInstallAllDriverProtocols (\r |
| 52 | ImageHandle,\r |
| 53 | SystemTable,\r |
| 54 | &gVgaClassDriverBinding,\r |
| 55 | ImageHandle,\r |
| 56 | &gVgaClassComponentName,\r |
| 57 | NULL,\r |
| 58 | NULL\r |
| 59 | );\r |
| 60 | ASSERT_EFI_ERROR (Status);\r |
| 61 | \r |
| 62 | \r |
| 63 | return Status;\r |
| 64 | }\r |
| 65 | \r |
| 66 | //\r |
| 67 | // Local variables\r |
| 68 | //\r |
| 69 | static CHAR16 CrLfString[3] = { CHAR_CARRIAGE_RETURN, CHAR_LINEFEED, CHAR_NULL };\r |
| 70 | \r |
| 71 | typedef struct {\r |
| 72 | CHAR16 Unicode;\r |
| 73 | CHAR8 PcAnsi;\r |
| 74 | CHAR8 Ascii;\r |
| 75 | } UNICODE_TO_CHAR;\r |
| 76 | \r |
| 77 | //\r |
| 78 | // This list is used to define the valid extend chars.\r |
| 79 | // It also provides a mapping from Unicode to PCANSI or\r |
| 80 | // ASCII. The ASCII mapping we just made up.\r |
| 81 | //\r |
| 82 | //\r |
| 83 | STATIC UNICODE_TO_CHAR UnicodeToPcAnsiOrAscii[] = {\r |
| 84 | {\r |
| 85 | BOXDRAW_HORIZONTAL,\r |
| 86 | 0xc4,\r |
| 87 | L'-'\r |
| 88 | },\r |
| 89 | {\r |
| 90 | BOXDRAW_VERTICAL,\r |
| 91 | 0xb3,\r |
| 92 | L'|'\r |
| 93 | },\r |
| 94 | {\r |
| 95 | BOXDRAW_DOWN_RIGHT,\r |
| 96 | 0xda,\r |
| 97 | L'/'\r |
| 98 | },\r |
| 99 | {\r |
| 100 | BOXDRAW_DOWN_LEFT,\r |
| 101 | 0xbf,\r |
| 102 | L'\\'\r |
| 103 | },\r |
| 104 | {\r |
| 105 | BOXDRAW_UP_RIGHT,\r |
| 106 | 0xc0,\r |
| 107 | L'\\'\r |
| 108 | },\r |
| 109 | {\r |
| 110 | BOXDRAW_UP_LEFT,\r |
| 111 | 0xd9,\r |
| 112 | L'/'\r |
| 113 | },\r |
| 114 | {\r |
| 115 | BOXDRAW_VERTICAL_RIGHT,\r |
| 116 | 0xc3,\r |
| 117 | L'|'\r |
| 118 | },\r |
| 119 | {\r |
| 120 | BOXDRAW_VERTICAL_LEFT,\r |
| 121 | 0xb4,\r |
| 122 | L'|'\r |
| 123 | },\r |
| 124 | {\r |
| 125 | BOXDRAW_DOWN_HORIZONTAL,\r |
| 126 | 0xc2,\r |
| 127 | L'+'\r |
| 128 | },\r |
| 129 | {\r |
| 130 | BOXDRAW_UP_HORIZONTAL,\r |
| 131 | 0xc1,\r |
| 132 | L'+'\r |
| 133 | },\r |
| 134 | {\r |
| 135 | BOXDRAW_VERTICAL_HORIZONTAL,\r |
| 136 | 0xc5,\r |
| 137 | L'+'\r |
| 138 | },\r |
| 139 | {\r |
| 140 | BOXDRAW_DOUBLE_HORIZONTAL,\r |
| 141 | 0xcd,\r |
| 142 | L'-'\r |
| 143 | },\r |
| 144 | {\r |
| 145 | BOXDRAW_DOUBLE_VERTICAL,\r |
| 146 | 0xba,\r |
| 147 | L'|'\r |
| 148 | },\r |
| 149 | {\r |
| 150 | BOXDRAW_DOWN_RIGHT_DOUBLE,\r |
| 151 | 0xd5,\r |
| 152 | L'/'\r |
| 153 | },\r |
| 154 | {\r |
| 155 | BOXDRAW_DOWN_DOUBLE_RIGHT,\r |
| 156 | 0xd6,\r |
| 157 | L'/'\r |
| 158 | },\r |
| 159 | {\r |
| 160 | BOXDRAW_DOUBLE_DOWN_RIGHT,\r |
| 161 | 0xc9,\r |
| 162 | L'/'\r |
| 163 | },\r |
| 164 | {\r |
| 165 | BOXDRAW_DOWN_LEFT_DOUBLE,\r |
| 166 | 0xb8,\r |
| 167 | L'\\'\r |
| 168 | },\r |
| 169 | {\r |
| 170 | BOXDRAW_DOWN_DOUBLE_LEFT,\r |
| 171 | 0xb7,\r |
| 172 | L'\\'\r |
| 173 | },\r |
| 174 | {\r |
| 175 | BOXDRAW_DOUBLE_DOWN_LEFT,\r |
| 176 | 0xbb,\r |
| 177 | L'\\'\r |
| 178 | },\r |
| 179 | {\r |
| 180 | BOXDRAW_UP_RIGHT_DOUBLE,\r |
| 181 | 0xd4,\r |
| 182 | L'\\'\r |
| 183 | },\r |
| 184 | {\r |
| 185 | BOXDRAW_UP_DOUBLE_RIGHT,\r |
| 186 | 0xd3,\r |
| 187 | L'\\'\r |
| 188 | },\r |
| 189 | {\r |
| 190 | BOXDRAW_DOUBLE_UP_RIGHT,\r |
| 191 | 0xc8,\r |
| 192 | L'\\'\r |
| 193 | },\r |
| 194 | {\r |
| 195 | BOXDRAW_UP_LEFT_DOUBLE,\r |
| 196 | 0xbe,\r |
| 197 | L'/'\r |
| 198 | },\r |
| 199 | {\r |
| 200 | BOXDRAW_UP_DOUBLE_LEFT,\r |
| 201 | 0xbd,\r |
| 202 | L'/'\r |
| 203 | },\r |
| 204 | {\r |
| 205 | BOXDRAW_DOUBLE_UP_LEFT,\r |
| 206 | 0xbc,\r |
| 207 | L'/'\r |
| 208 | },\r |
| 209 | {\r |
| 210 | BOXDRAW_VERTICAL_RIGHT_DOUBLE,\r |
| 211 | 0xc6,\r |
| 212 | L'|'\r |
| 213 | },\r |
| 214 | {\r |
| 215 | BOXDRAW_VERTICAL_DOUBLE_RIGHT,\r |
| 216 | 0xc7,\r |
| 217 | L'|'\r |
| 218 | },\r |
| 219 | {\r |
| 220 | BOXDRAW_DOUBLE_VERTICAL_RIGHT,\r |
| 221 | 0xcc,\r |
| 222 | L'|'\r |
| 223 | },\r |
| 224 | {\r |
| 225 | BOXDRAW_VERTICAL_LEFT_DOUBLE,\r |
| 226 | 0xb5,\r |
| 227 | L'|'\r |
| 228 | },\r |
| 229 | {\r |
| 230 | BOXDRAW_VERTICAL_DOUBLE_LEFT,\r |
| 231 | 0xb6,\r |
| 232 | L'|'\r |
| 233 | },\r |
| 234 | {\r |
| 235 | BOXDRAW_DOUBLE_VERTICAL_LEFT,\r |
| 236 | 0xb9,\r |
| 237 | L'|'\r |
| 238 | },\r |
| 239 | {\r |
| 240 | BOXDRAW_DOWN_HORIZONTAL_DOUBLE,\r |
| 241 | 0xd1,\r |
| 242 | L'+'\r |
| 243 | },\r |
| 244 | {\r |
| 245 | BOXDRAW_DOWN_DOUBLE_HORIZONTAL,\r |
| 246 | 0xd2,\r |
| 247 | L'+'\r |
| 248 | },\r |
| 249 | {\r |
| 250 | BOXDRAW_DOUBLE_DOWN_HORIZONTAL,\r |
| 251 | 0xcb,\r |
| 252 | L'+'\r |
| 253 | },\r |
| 254 | {\r |
| 255 | BOXDRAW_UP_HORIZONTAL_DOUBLE,\r |
| 256 | 0xcf,\r |
| 257 | L'+'\r |
| 258 | },\r |
| 259 | {\r |
| 260 | BOXDRAW_UP_DOUBLE_HORIZONTAL,\r |
| 261 | 0xd0,\r |
| 262 | L'+'\r |
| 263 | },\r |
| 264 | {\r |
| 265 | BOXDRAW_DOUBLE_UP_HORIZONTAL,\r |
| 266 | 0xca,\r |
| 267 | L'+'\r |
| 268 | },\r |
| 269 | {\r |
| 270 | BOXDRAW_VERTICAL_HORIZONTAL_DOUBLE,\r |
| 271 | 0xd8,\r |
| 272 | L'+'\r |
| 273 | },\r |
| 274 | {\r |
| 275 | BOXDRAW_VERTICAL_DOUBLE_HORIZONTAL,\r |
| 276 | 0xd7,\r |
| 277 | L'+'\r |
| 278 | },\r |
| 279 | {\r |
| 280 | BOXDRAW_DOUBLE_VERTICAL_HORIZONTAL,\r |
| 281 | 0xce,\r |
| 282 | L'+'\r |
| 283 | },\r |
| 284 | \r |
| 285 | {\r |
| 286 | BLOCKELEMENT_FULL_BLOCK,\r |
| 287 | 0xdb,\r |
| 288 | L'*'\r |
| 289 | },\r |
| 290 | {\r |
| 291 | BLOCKELEMENT_LIGHT_SHADE,\r |
| 292 | 0xb0,\r |
| 293 | L'+'\r |
| 294 | },\r |
| 295 | \r |
| 296 | {\r |
| 297 | GEOMETRICSHAPE_UP_TRIANGLE,\r |
| 298 | 0x1e,\r |
| 299 | L'^'\r |
| 300 | },\r |
| 301 | {\r |
| 302 | GEOMETRICSHAPE_RIGHT_TRIANGLE,\r |
| 303 | 0x10,\r |
| 304 | L'>'\r |
| 305 | },\r |
| 306 | {\r |
| 307 | GEOMETRICSHAPE_DOWN_TRIANGLE,\r |
| 308 | 0x1f,\r |
| 309 | L'v'\r |
| 310 | },\r |
| 311 | {\r |
| 312 | GEOMETRICSHAPE_LEFT_TRIANGLE,\r |
| 313 | 0x11,\r |
| 314 | L'<'\r |
| 315 | },\r |
| 316 | \r |
| 317 | {\r |
| 318 | ARROW_LEFT,\r |
| 319 | 0x3c,\r |
| 320 | L'<'\r |
| 321 | },\r |
| 322 | \r |
| 323 | {\r |
| 324 | ARROW_UP,\r |
| 325 | 0x18,\r |
| 326 | L'^'\r |
| 327 | },\r |
| 328 | \r |
| 329 | {\r |
| 330 | ARROW_RIGHT,\r |
| 331 | 0x3e,\r |
| 332 | L'>'\r |
| 333 | },\r |
| 334 | \r |
| 335 | {\r |
| 336 | ARROW_DOWN,\r |
| 337 | 0x19,\r |
| 338 | L'v'\r |
| 339 | },\r |
| 340 | \r |
| 341 | {\r |
| 342 | 0x0000,\r |
| 343 | 0x00,\r |
| 344 | 0x00\r |
| 345 | }\r |
| 346 | };\r |
| 347 | \r |
| 348 | //\r |
| 349 | // Private worker functions\r |
| 350 | //\r |
| 351 | STATIC\r |
| 352 | VOID\r |
| 353 | SetVideoCursorPosition (\r |
| 354 | IN VGA_CLASS_DEV *VgaClassDev,\r |
| 355 | IN UINTN Column,\r |
| 356 | IN UINTN Row,\r |
| 357 | IN UINTN MaxColumn\r |
| 358 | );\r |
| 359 | \r |
| 360 | STATIC\r |
| 361 | VOID\r |
| 362 | WriteCrtc (\r |
| 363 | IN VGA_CLASS_DEV *VgaClassDev,\r |
| 364 | IN UINT16 Address,\r |
| 365 | IN UINT8 Data\r |
| 366 | );\r |
| 367 | \r |
| 368 | STATIC\r |
| 369 | BOOLEAN\r |
| 370 | LibIsValidTextGraphics (\r |
| 371 | IN CHAR16 Graphic,\r |
| 372 | OUT CHAR8 *PcAnsi, OPTIONAL\r |
| 373 | OUT CHAR8 *Ascii OPTIONAL\r |
| 374 | );\r |
| 375 | \r |
| 376 | STATIC\r |
| 377 | BOOLEAN\r |
| 378 | IsValidAscii (\r |
| 379 | IN CHAR16 Ascii\r |
| 380 | );\r |
| 381 | \r |
| 382 | STATIC\r |
| 383 | BOOLEAN\r |
| 384 | IsValidEfiCntlChar (\r |
| 385 | IN CHAR16 c\r |
| 386 | );\r |
| 387 | \r |
| 388 | EFI_STATUS\r |
| 389 | EFIAPI\r |
| 390 | VgaClassDriverBindingSupported (\r |
| 391 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 392 | IN EFI_HANDLE Controller,\r |
| 393 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 394 | )\r |
| 395 | /*++\r |
| 396 | \r |
| 397 | Routine Description:\r |
| 398 | \r |
| 399 | Supported.\r |
| 400 | \r |
| 401 | Arguments:\r |
| 402 | \r |
| 403 | (Standard DriverBinding Protocol Supported() function)\r |
| 404 | \r |
| 405 | Returns:\r |
| 406 | \r |
| 407 | EFI_STATUS\r |
| 408 | \r |
| 409 | --*/\r |
| 410 | // GC_TODO: This - add argument and description to function comment\r |
| 411 | // GC_TODO: Controller - add argument and description to function comment\r |
| 412 | // GC_TODO: RemainingDevicePath - add argument and description to function comment\r |
| 413 | {\r |
| 414 | EFI_STATUS Status;\r |
| 415 | EFI_VGA_MINI_PORT_PROTOCOL *VgaMiniPort;\r |
| 416 | \r |
| 417 | //\r |
| 418 | // Open the IO Abstraction(s) needed to perform the supported test\r |
| 419 | //\r |
| 420 | Status = gBS->OpenProtocol (\r |
| 421 | Controller,\r |
| 422 | &gEfiVgaMiniPortProtocolGuid,\r |
| 423 | (VOID **) &VgaMiniPort,\r |
| 424 | This->DriverBindingHandle,\r |
| 425 | Controller,\r |
| 426 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r |
| 427 | );\r |
| 428 | if (EFI_ERROR (Status)) {\r |
| 429 | return Status;\r |
| 430 | }\r |
| 431 | //\r |
| 432 | // Open the IO Abstraction(s) needed to perform the supported test\r |
| 433 | //\r |
| 434 | Status = gBS->OpenProtocol (\r |
| 435 | Controller,\r |
| 436 | &gEfiPciIoProtocolGuid,\r |
| 437 | NULL,\r |
| 438 | This->DriverBindingHandle,\r |
| 439 | Controller,\r |
| 440 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r |
| 441 | );\r |
| 442 | if (EFI_ERROR (Status)) {\r |
| 443 | return Status;\r |
| 444 | }\r |
| 445 | \r |
| 446 | return Status;\r |
| 447 | }\r |
| 448 | \r |
| 449 | EFI_STATUS\r |
| 450 | EFIAPI\r |
| 451 | VgaClassDriverBindingStart (\r |
| 452 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 453 | IN EFI_HANDLE Controller,\r |
| 454 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 455 | )\r |
| 456 | /*++\r |
| 457 | \r |
| 458 | Routine Description:\r |
| 459 | \r |
| 460 | Layers the Simple Text Output Protocol on top of the \r |
| 461 | VGA Mini Port Protocol\r |
| 462 | \r |
| 463 | Arguments:\r |
| 464 | \r |
| 465 | (Standard DriverBinding Protocol Start() function)\r |
| 466 | \r |
| 467 | Returns:\r |
| 468 | \r |
| 469 | EFI_STATUS\r |
| 470 | \r |
| 471 | --*/\r |
| 472 | // GC_TODO: This - add argument and description to function comment\r |
| 473 | // GC_TODO: Controller - add argument and description to function comment\r |
| 474 | // GC_TODO: RemainingDevicePath - add argument and description to function comment\r |
| 475 | // GC_TODO: EFI_OUT_OF_RESOURCES - add return value to function comment\r |
| 476 | {\r |
| 477 | EFI_STATUS Status;\r |
| 478 | EFI_VGA_MINI_PORT_PROTOCOL *VgaMiniPort;\r |
| 479 | EFI_PCI_IO_PROTOCOL *PciIo;\r |
| 480 | VGA_CLASS_DEV *VgaClassPrivate;\r |
| 481 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
| 482 | \r |
| 483 | Status = gBS->HandleProtocol (\r |
| 484 | Controller,\r |
| 485 | &gEfiDevicePathProtocolGuid,\r |
| 486 | (VOID **) &DevicePath\r |
| 487 | );\r |
| 488 | if (EFI_ERROR (Status)) {\r |
| 489 | return Status;\r |
| 490 | }\r |
| 491 | //\r |
| 492 | // Report that VGA Class driver is being enabled\r |
| 493 | //\r |
| 494 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
| 495 | EFI_PROGRESS_CODE,\r |
| 496 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_PC_ENABLE,\r |
| 497 | DevicePath\r |
| 498 | );\r |
| 499 | \r |
| 500 | //\r |
| 501 | // Open the IO Abstraction(s) needed\r |
| 502 | //\r |
| 503 | Status = gBS->OpenProtocol (\r |
| 504 | Controller,\r |
| 505 | &gEfiPciIoProtocolGuid,\r |
| 506 | (VOID **) &PciIo,\r |
| 507 | This->DriverBindingHandle,\r |
| 508 | Controller,\r |
| 509 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 510 | );\r |
| 511 | if (EFI_ERROR (Status)) {\r |
| 512 | return Status;\r |
| 513 | }\r |
| 514 | \r |
| 515 | Status = gBS->OpenProtocol (\r |
| 516 | Controller,\r |
| 517 | &gEfiVgaMiniPortProtocolGuid,\r |
| 518 | (VOID **) &VgaMiniPort,\r |
| 519 | This->DriverBindingHandle,\r |
| 520 | Controller,\r |
| 521 | EFI_OPEN_PROTOCOL_BY_DRIVER\r |
| 522 | );\r |
| 523 | if (EFI_ERROR (Status)) {\r |
| 524 | return Status;\r |
| 525 | }\r |
| 526 | //\r |
| 527 | // Allocate the private device structure\r |
| 528 | //\r |
| 529 | Status = gBS->AllocatePool (\r |
| 530 | EfiBootServicesData,\r |
| 531 | sizeof (VGA_CLASS_DEV),\r |
| 532 | (VOID **) &VgaClassPrivate\r |
| 533 | );\r |
| 534 | if (EFI_ERROR (Status)) {\r |
| 535 | gBS->CloseProtocol (\r |
| 536 | Controller,\r |
| 537 | &gEfiVgaMiniPortProtocolGuid,\r |
| 538 | This->DriverBindingHandle,\r |
| 539 | Controller\r |
| 540 | );\r |
| 541 | return EFI_OUT_OF_RESOURCES;\r |
| 542 | }\r |
| 543 | \r |
| 544 | ZeroMem (VgaClassPrivate, sizeof (VGA_CLASS_DEV));\r |
| 545 | \r |
| 546 | //\r |
| 547 | // Initialize the private device structure\r |
| 548 | //\r |
| 549 | VgaClassPrivate->Signature = VGA_CLASS_DEV_SIGNATURE;\r |
| 550 | VgaClassPrivate->Handle = Controller;\r |
| 551 | VgaClassPrivate->VgaMiniPort = VgaMiniPort;\r |
| 552 | VgaClassPrivate->PciIo = PciIo;\r |
| 553 | \r |
| 554 | VgaClassPrivate->SimpleTextOut.Reset = VgaClassReset;\r |
| 555 | VgaClassPrivate->SimpleTextOut.OutputString = VgaClassOutputString;\r |
| 556 | VgaClassPrivate->SimpleTextOut.TestString = VgaClassTestString;\r |
| 557 | VgaClassPrivate->SimpleTextOut.ClearScreen = VgaClassClearScreen;\r |
| 558 | VgaClassPrivate->SimpleTextOut.SetAttribute = VgaClassSetAttribute;\r |
| 559 | VgaClassPrivate->SimpleTextOut.SetCursorPosition = VgaClassSetCursorPosition;\r |
| 560 | VgaClassPrivate->SimpleTextOut.EnableCursor = VgaClassEnableCursor;\r |
| 561 | VgaClassPrivate->SimpleTextOut.QueryMode = VgaClassQueryMode;\r |
| 562 | VgaClassPrivate->SimpleTextOut.SetMode = VgaClassSetMode;\r |
| 563 | \r |
| 564 | VgaClassPrivate->SimpleTextOut.Mode = &VgaClassPrivate->SimpleTextOutputMode;\r |
| 565 | VgaClassPrivate->SimpleTextOutputMode.MaxMode = VgaMiniPort->MaxMode;\r |
| 566 | VgaClassPrivate->DevicePath = DevicePath;\r |
| 567 | \r |
| 568 | Status = VgaClassPrivate->SimpleTextOut.SetAttribute (\r |
| 569 | &VgaClassPrivate->SimpleTextOut,\r |
| 570 | EFI_TEXT_ATTR (EFI_WHITE,\r |
| 571 | EFI_BLACK)\r |
| 572 | );\r |
| 573 | if (EFI_ERROR (Status)) {\r |
| 574 | goto ErrorExit;\r |
| 575 | }\r |
| 576 | \r |
| 577 | Status = VgaClassPrivate->SimpleTextOut.Reset (\r |
| 578 | &VgaClassPrivate->SimpleTextOut,\r |
| 579 | FALSE\r |
| 580 | );\r |
| 581 | if (EFI_ERROR (Status)) {\r |
| 582 | goto ErrorExit;\r |
| 583 | }\r |
| 584 | \r |
| 585 | Status = VgaClassPrivate->SimpleTextOut.EnableCursor (\r |
| 586 | &VgaClassPrivate->SimpleTextOut,\r |
| 587 | TRUE\r |
| 588 | );\r |
| 589 | if (EFI_ERROR (Status)) {\r |
| 590 | goto ErrorExit;\r |
| 591 | }\r |
| 592 | \r |
| 593 | Status = gBS->InstallMultipleProtocolInterfaces (\r |
| 594 | &Controller,\r |
| 595 | &gEfiSimpleTextOutProtocolGuid,\r |
| 596 | &VgaClassPrivate->SimpleTextOut,\r |
| 597 | NULL\r |
| 598 | );\r |
| 599 | \r |
| 600 | return Status;\r |
| 601 | \r |
| 602 | ErrorExit:\r |
| 603 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
| 604 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r |
| 605 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_EC_CONTROLLER_ERROR,\r |
| 606 | DevicePath\r |
| 607 | );\r |
| 608 | \r |
| 609 | return Status;\r |
| 610 | \r |
| 611 | }\r |
| 612 | \r |
| 613 | EFI_STATUS\r |
| 614 | EFIAPI\r |
| 615 | VgaClassDriverBindingStop (\r |
| 616 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 617 | IN EFI_HANDLE Controller,\r |
| 618 | IN UINTN NumberOfChildren,\r |
| 619 | IN EFI_HANDLE *ChildHandleBuffer\r |
| 620 | )\r |
| 621 | /*++\r |
| 622 | \r |
| 623 | Routine Description:\r |
| 624 | \r |
| 625 | Stop.\r |
| 626 | \r |
| 627 | Arguments:\r |
| 628 | \r |
| 629 | (Standard DriverBinding Protocol Stop() function)\r |
| 630 | \r |
| 631 | Returns:\r |
| 632 | \r |
| 633 | EFI_STATUS\r |
| 634 | \r |
| 635 | --*/\r |
| 636 | // GC_TODO: This - add argument and description to function comment\r |
| 637 | // GC_TODO: Controller - add argument and description to function comment\r |
| 638 | // GC_TODO: NumberOfChildren - add argument and description to function comment\r |
| 639 | // GC_TODO: ChildHandleBuffer - add argument and description to function comment\r |
| 640 | // GC_TODO: EFI_SUCCESS - add return value to function comment\r |
| 641 | {\r |
| 642 | EFI_STATUS Status;\r |
| 643 | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *SimpleTextOut;\r |
| 644 | VGA_CLASS_DEV *VgaClassPrivate;\r |
| 645 | \r |
| 646 | Status = gBS->OpenProtocol (\r |
| 647 | Controller,\r |
| 648 | &gEfiSimpleTextOutProtocolGuid,\r |
| 649 | (VOID **) &SimpleTextOut,\r |
| 650 | This->DriverBindingHandle,\r |
| 651 | Controller,\r |
| 652 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 653 | );\r |
| 654 | if (EFI_ERROR (Status)) {\r |
| 655 | return Status;\r |
| 656 | }\r |
| 657 | \r |
| 658 | VgaClassPrivate = VGA_CLASS_DEV_FROM_THIS (SimpleTextOut);\r |
| 659 | \r |
| 660 | //\r |
| 661 | // Report that VGA Class driver is being disabled\r |
| 662 | //\r |
| 663 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
| 664 | EFI_PROGRESS_CODE,\r |
| 665 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_PC_DISABLE,\r |
| 666 | VgaClassPrivate->DevicePath\r |
| 667 | );\r |
| 668 | \r |
| 669 | Status = gBS->UninstallProtocolInterface (\r |
| 670 | Controller,\r |
| 671 | &gEfiSimpleTextOutProtocolGuid,\r |
| 672 | &VgaClassPrivate->SimpleTextOut\r |
| 673 | );\r |
| 674 | if (EFI_ERROR (Status)) {\r |
| 675 | return Status;\r |
| 676 | }\r |
| 677 | //\r |
| 678 | // Release PCI I/O and VGA Mini Port Protocols on the controller handle.\r |
| 679 | //\r |
| 680 | gBS->CloseProtocol (\r |
| 681 | Controller,\r |
| 682 | &gEfiPciIoProtocolGuid,\r |
| 683 | This->DriverBindingHandle,\r |
| 684 | Controller\r |
| 685 | );\r |
| 686 | \r |
| 687 | gBS->CloseProtocol (\r |
| 688 | Controller,\r |
| 689 | &gEfiVgaMiniPortProtocolGuid,\r |
| 690 | This->DriverBindingHandle,\r |
| 691 | Controller\r |
| 692 | );\r |
| 693 | \r |
| 694 | gBS->FreePool (VgaClassPrivate);\r |
| 695 | \r |
| 696 | return EFI_SUCCESS;\r |
| 697 | }\r |
| 698 | //\r |
| 699 | // Simple Text Output Protocol Functions\r |
| 700 | //\r |
| 701 | EFI_STATUS\r |
| 702 | EFIAPI\r |
| 703 | VgaClassReset (\r |
| 704 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 705 | IN BOOLEAN ExtendedVerification\r |
| 706 | )\r |
| 707 | /*++\r |
| 708 | \r |
| 709 | Routine Description:\r |
| 710 | \r |
| 711 | GC_TODO: Add function description\r |
| 712 | \r |
| 713 | Arguments:\r |
| 714 | \r |
| 715 | This - GC_TODO: add argument description\r |
| 716 | ExtendedVerification - GC_TODO: add argument description\r |
| 717 | \r |
| 718 | Returns:\r |
| 719 | \r |
| 720 | GC_TODO: add return values\r |
| 721 | \r |
| 722 | --*/\r |
| 723 | {\r |
| 724 | EFI_STATUS Status;\r |
| 725 | VGA_CLASS_DEV *VgaClassPrivate;\r |
| 726 | \r |
| 727 | VgaClassPrivate = VGA_CLASS_DEV_FROM_THIS (This);\r |
| 728 | \r |
| 729 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
| 730 | EFI_PROGRESS_CODE,\r |
| 731 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_PC_RESET,\r |
| 732 | VgaClassPrivate->DevicePath\r |
| 733 | );\r |
| 734 | \r |
| 735 | This->SetAttribute (This, EFI_TEXT_ATTR (This->Mode->Attribute & 0x0F, EFI_BACKGROUND_BLACK));\r |
| 736 | \r |
| 737 | Status = This->SetMode (This, 0);\r |
| 738 | if (EFI_ERROR (Status)) {\r |
| 739 | return Status;\r |
| 740 | }\r |
| 741 | \r |
| 742 | return This->ClearScreen (This);\r |
| 743 | }\r |
| 744 | \r |
| 745 | EFI_STATUS\r |
| 746 | EFIAPI\r |
| 747 | VgaClassOutputString (\r |
| 748 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 749 | IN CHAR16 *WString\r |
| 750 | )\r |
| 751 | /*++\r |
| 752 | \r |
| 753 | Routine Description:\r |
| 754 | \r |
| 755 | GC_TODO: Add function description\r |
| 756 | \r |
| 757 | Arguments:\r |
| 758 | \r |
| 759 | This - GC_TODO: add argument description\r |
| 760 | WString - GC_TODO: add argument description\r |
| 761 | \r |
| 762 | Returns:\r |
| 763 | \r |
| 764 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 765 | \r |
| 766 | --*/\r |
| 767 | {\r |
| 768 | EFI_STATUS Status;\r |
| 769 | VGA_CLASS_DEV *VgaClassDev;\r |
| 770 | EFI_SIMPLE_TEXT_OUTPUT_MODE *Mode;\r |
| 771 | UINTN MaxColumn;\r |
| 772 | UINTN MaxRow;\r |
| 773 | UINT32 VideoChar;\r |
| 774 | CHAR8 GraphicChar;\r |
| 775 | \r |
| 776 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r |
| 777 | \r |
| 778 | Mode = This->Mode;\r |
| 779 | \r |
| 780 | Status = This->QueryMode (\r |
| 781 | This,\r |
| 782 | Mode->Mode,\r |
| 783 | &MaxColumn,\r |
| 784 | &MaxRow\r |
| 785 | );\r |
| 786 | if (EFI_ERROR (Status)) {\r |
| 787 | return Status;\r |
| 788 | }\r |
| 789 | \r |
| 790 | for (; *WString != CHAR_NULL; WString++) {\r |
| 791 | \r |
| 792 | switch (*WString) {\r |
| 793 | case CHAR_BACKSPACE:\r |
| 794 | if (Mode->CursorColumn > 0) {\r |
| 795 | Mode->CursorColumn--;\r |
| 796 | }\r |
| 797 | break;\r |
| 798 | \r |
| 799 | case CHAR_LINEFEED:\r |
| 800 | if (Mode->CursorRow == (INT32) (MaxRow - 1)) {\r |
| 801 | //\r |
| 802 | // Scroll the screen by copying the contents\r |
| 803 | // of the VGA display up one line\r |
| 804 | //\r |
| 805 | VgaClassDev->PciIo->CopyMem (\r |
| 806 | VgaClassDev->PciIo,\r |
| 807 | EfiPciIoWidthUint32,\r |
| 808 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r |
| 809 | VgaClassDev->VgaMiniPort->VgaMemoryOffset,\r |
| 810 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r |
| 811 | VgaClassDev->VgaMiniPort->VgaMemoryOffset + MaxColumn * 2,\r |
| 812 | ((MaxRow - 1) * MaxColumn) >> 1\r |
| 813 | );\r |
| 814 | \r |
| 815 | //\r |
| 816 | // Print Blank Line of spaces with the current color attributes\r |
| 817 | //\r |
| 818 | VideoChar = (Mode->Attribute << 8) | ' ';\r |
| 819 | VideoChar = (VideoChar << 16) | VideoChar;\r |
| 820 | VgaClassDev->PciIo->Mem.Write (\r |
| 821 | VgaClassDev->PciIo,\r |
| 822 | EfiPciIoWidthFillUint32,\r |
| 823 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r |
| 824 | VgaClassDev->VgaMiniPort->VgaMemoryOffset + (MaxRow - 1) * MaxColumn * 2,\r |
| 825 | MaxColumn >> 1,\r |
| 826 | &VideoChar\r |
| 827 | );\r |
| 828 | }\r |
| 829 | \r |
| 830 | if (Mode->CursorRow < (INT32) (MaxRow - 1)) {\r |
| 831 | Mode->CursorRow++;\r |
| 832 | }\r |
| 833 | break;\r |
| 834 | \r |
| 835 | case CHAR_CARRIAGE_RETURN:\r |
| 836 | Mode->CursorColumn = 0;\r |
| 837 | break;\r |
| 838 | \r |
| 839 | default:\r |
| 840 | if (!LibIsValidTextGraphics (*WString, &GraphicChar, NULL)) {\r |
| 841 | //\r |
| 842 | // Just convert to ASCII\r |
| 843 | //\r |
| 844 | GraphicChar = (CHAR8) *WString;\r |
| 845 | if (!IsValidAscii (GraphicChar)) {\r |
| 846 | //\r |
| 847 | // Keep the API from supporting PCANSI Graphics chars\r |
| 848 | //\r |
| 849 | GraphicChar = '?';\r |
| 850 | }\r |
| 851 | }\r |
| 852 | \r |
| 853 | VideoChar = (Mode->Attribute << 8) | GraphicChar;\r |
| 854 | VgaClassDev->PciIo->Mem.Write (\r |
| 855 | VgaClassDev->PciIo,\r |
| 856 | EfiPciIoWidthUint16,\r |
| 857 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r |
| 858 | VgaClassDev->VgaMiniPort->VgaMemoryOffset + ((Mode->CursorRow * MaxColumn + Mode->CursorColumn) * 2),\r |
| 859 | 1,\r |
| 860 | &VideoChar\r |
| 861 | );\r |
| 862 | \r |
| 863 | if (Mode->CursorColumn >= (INT32) (MaxColumn - 1)) {\r |
| 864 | This->OutputString (This, CrLfString);\r |
| 865 | } else {\r |
| 866 | Mode->CursorColumn++;\r |
| 867 | }\r |
| 868 | break;\r |
| 869 | }\r |
| 870 | }\r |
| 871 | \r |
| 872 | SetVideoCursorPosition (\r |
| 873 | VgaClassDev,\r |
| 874 | (UINTN) Mode->CursorColumn,\r |
| 875 | (UINTN) Mode->CursorRow,\r |
| 876 | MaxColumn\r |
| 877 | );\r |
| 878 | \r |
| 879 | return EFI_SUCCESS;\r |
| 880 | }\r |
| 881 | \r |
| 882 | EFI_STATUS\r |
| 883 | EFIAPI\r |
| 884 | VgaClassTestString (\r |
| 885 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 886 | IN CHAR16 *WString\r |
| 887 | )\r |
| 888 | /*++\r |
| 889 | \r |
| 890 | Routine Description:\r |
| 891 | \r |
| 892 | GC_TODO: Add function description\r |
| 893 | \r |
| 894 | Arguments:\r |
| 895 | \r |
| 896 | This - GC_TODO: add argument description\r |
| 897 | WString - GC_TODO: add argument description\r |
| 898 | \r |
| 899 | Returns:\r |
| 900 | \r |
| 901 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r |
| 902 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 903 | \r |
| 904 | --*/\r |
| 905 | {\r |
| 906 | while (*WString != 0x0000) {\r |
| 907 | if (!(IsValidAscii (*WString) || IsValidEfiCntlChar (*WString) || LibIsValidTextGraphics (*WString, NULL, NULL))) {\r |
| 908 | return EFI_UNSUPPORTED;\r |
| 909 | }\r |
| 910 | \r |
| 911 | WString++;\r |
| 912 | }\r |
| 913 | \r |
| 914 | return EFI_SUCCESS;\r |
| 915 | }\r |
| 916 | \r |
| 917 | EFI_STATUS\r |
| 918 | EFIAPI\r |
| 919 | VgaClassClearScreen (\r |
| 920 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This\r |
| 921 | )\r |
| 922 | /*++\r |
| 923 | \r |
| 924 | Routine Description:\r |
| 925 | \r |
| 926 | GC_TODO: Add function description\r |
| 927 | \r |
| 928 | Arguments:\r |
| 929 | \r |
| 930 | This - GC_TODO: add argument description\r |
| 931 | \r |
| 932 | Returns:\r |
| 933 | \r |
| 934 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 935 | \r |
| 936 | --*/\r |
| 937 | {\r |
| 938 | EFI_STATUS Status;\r |
| 939 | VGA_CLASS_DEV *VgaClassDev;\r |
| 940 | UINTN MaxRow;\r |
| 941 | UINTN MaxColumn;\r |
| 942 | UINT32 VideoChar;\r |
| 943 | \r |
| 944 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r |
| 945 | \r |
| 946 | Status = This->QueryMode (\r |
| 947 | This,\r |
| 948 | This->Mode->Mode,\r |
| 949 | &MaxColumn,\r |
| 950 | &MaxRow\r |
| 951 | );\r |
| 952 | if (EFI_ERROR (Status)) {\r |
| 953 | return Status;\r |
| 954 | }\r |
| 955 | \r |
| 956 | VideoChar = (This->Mode->Attribute << 8) | ' ';\r |
| 957 | VideoChar = (VideoChar << 16) | VideoChar;\r |
| 958 | VgaClassDev->PciIo->Mem.Write (\r |
| 959 | VgaClassDev->PciIo,\r |
| 960 | EfiPciIoWidthFillUint32,\r |
| 961 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r |
| 962 | VgaClassDev->VgaMiniPort->VgaMemoryOffset,\r |
| 963 | (MaxRow * MaxColumn) >> 1,\r |
| 964 | &VideoChar\r |
| 965 | );\r |
| 966 | \r |
| 967 | This->SetCursorPosition (This, 0, 0);\r |
| 968 | \r |
| 969 | return EFI_SUCCESS;\r |
| 970 | }\r |
| 971 | \r |
| 972 | EFI_STATUS\r |
| 973 | EFIAPI\r |
| 974 | VgaClassSetAttribute (\r |
| 975 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 976 | IN UINTN Attribute\r |
| 977 | )\r |
| 978 | /*++\r |
| 979 | \r |
| 980 | Routine Description:\r |
| 981 | \r |
| 982 | GC_TODO: Add function description\r |
| 983 | \r |
| 984 | Arguments:\r |
| 985 | \r |
| 986 | This - GC_TODO: add argument description\r |
| 987 | Attribute - GC_TODO: add argument description\r |
| 988 | \r |
| 989 | Returns:\r |
| 990 | \r |
| 991 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 992 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r |
| 993 | \r |
| 994 | --*/\r |
| 995 | {\r |
| 996 | if (Attribute <= EFI_MAX_ATTRIBUTE) {\r |
| 997 | This->Mode->Attribute = (INT32) Attribute;\r |
| 998 | return EFI_SUCCESS;\r |
| 999 | }\r |
| 1000 | \r |
| 1001 | return EFI_UNSUPPORTED;\r |
| 1002 | }\r |
| 1003 | \r |
| 1004 | EFI_STATUS\r |
| 1005 | EFIAPI\r |
| 1006 | VgaClassSetCursorPosition (\r |
| 1007 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 1008 | IN UINTN Column,\r |
| 1009 | IN UINTN Row\r |
| 1010 | )\r |
| 1011 | /*++\r |
| 1012 | \r |
| 1013 | Routine Description:\r |
| 1014 | \r |
| 1015 | GC_TODO: Add function description\r |
| 1016 | \r |
| 1017 | Arguments:\r |
| 1018 | \r |
| 1019 | This - GC_TODO: add argument description\r |
| 1020 | Column - GC_TODO: add argument description\r |
| 1021 | Row - GC_TODO: add argument description\r |
| 1022 | \r |
| 1023 | Returns:\r |
| 1024 | \r |
| 1025 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r |
| 1026 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 1027 | \r |
| 1028 | --*/\r |
| 1029 | {\r |
| 1030 | EFI_STATUS Status;\r |
| 1031 | VGA_CLASS_DEV *VgaClassDev;\r |
| 1032 | UINTN MaxColumn;\r |
| 1033 | UINTN MaxRow;\r |
| 1034 | \r |
| 1035 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r |
| 1036 | \r |
| 1037 | Status = This->QueryMode (\r |
| 1038 | This,\r |
| 1039 | This->Mode->Mode,\r |
| 1040 | &MaxColumn,\r |
| 1041 | &MaxRow\r |
| 1042 | );\r |
| 1043 | if (EFI_ERROR (Status)) {\r |
| 1044 | return Status;\r |
| 1045 | }\r |
| 1046 | \r |
| 1047 | if (Column >= MaxColumn || Row >= MaxRow) {\r |
| 1048 | return EFI_UNSUPPORTED;\r |
| 1049 | }\r |
| 1050 | \r |
| 1051 | SetVideoCursorPosition (VgaClassDev, Column, Row, MaxColumn);\r |
| 1052 | \r |
| 1053 | This->Mode->CursorColumn = (INT32) Column;\r |
| 1054 | This->Mode->CursorRow = (INT32) Row;\r |
| 1055 | \r |
| 1056 | return EFI_SUCCESS;\r |
| 1057 | }\r |
| 1058 | \r |
| 1059 | EFI_STATUS\r |
| 1060 | EFIAPI\r |
| 1061 | VgaClassEnableCursor (\r |
| 1062 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 1063 | IN BOOLEAN Visible\r |
| 1064 | )\r |
| 1065 | /*++\r |
| 1066 | \r |
| 1067 | Routine Description:\r |
| 1068 | \r |
| 1069 | GC_TODO: Add function description\r |
| 1070 | \r |
| 1071 | Arguments:\r |
| 1072 | \r |
| 1073 | This - GC_TODO: add argument description\r |
| 1074 | Visible - GC_TODO: add argument description\r |
| 1075 | \r |
| 1076 | Returns:\r |
| 1077 | \r |
| 1078 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 1079 | \r |
| 1080 | --*/\r |
| 1081 | {\r |
| 1082 | VGA_CLASS_DEV *VgaClassDev;\r |
| 1083 | \r |
| 1084 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r |
| 1085 | if (Visible) {\r |
| 1086 | switch (This->Mode->Mode) {\r |
| 1087 | case 1:\r |
| 1088 | WriteCrtc (VgaClassDev, CRTC_CURSOR_START, 0x06);\r |
| 1089 | WriteCrtc (VgaClassDev, CRTC_CURSOR_END, 0x07);\r |
| 1090 | break;\r |
| 1091 | \r |
| 1092 | default:\r |
| 1093 | WriteCrtc (VgaClassDev, CRTC_CURSOR_START, 0x0e);\r |
| 1094 | WriteCrtc (VgaClassDev, CRTC_CURSOR_END, 0x0f);\r |
| 1095 | break;\r |
| 1096 | }\r |
| 1097 | } else {\r |
| 1098 | WriteCrtc (VgaClassDev, CRTC_CURSOR_START, 0x20);\r |
| 1099 | }\r |
| 1100 | \r |
| 1101 | This->Mode->CursorVisible = Visible;\r |
| 1102 | return EFI_SUCCESS;\r |
| 1103 | }\r |
| 1104 | \r |
| 1105 | EFI_STATUS\r |
| 1106 | EFIAPI\r |
| 1107 | VgaClassQueryMode (\r |
| 1108 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 1109 | IN UINTN ModeNumber,\r |
| 1110 | OUT UINTN *Columns,\r |
| 1111 | OUT UINTN *Rows\r |
| 1112 | )\r |
| 1113 | /*++\r |
| 1114 | \r |
| 1115 | Routine Description:\r |
| 1116 | \r |
| 1117 | GC_TODO: Add function description\r |
| 1118 | \r |
| 1119 | Arguments:\r |
| 1120 | \r |
| 1121 | This - GC_TODO: add argument description\r |
| 1122 | ModeNumber - GC_TODO: add argument description\r |
| 1123 | Columns - GC_TODO: add argument description\r |
| 1124 | Rows - GC_TODO: add argument description\r |
| 1125 | \r |
| 1126 | Returns:\r |
| 1127 | \r |
| 1128 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r |
| 1129 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r |
| 1130 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 1131 | \r |
| 1132 | --*/\r |
| 1133 | {\r |
| 1134 | if ((INT32) ModeNumber >= This->Mode->MaxMode) {\r |
| 1135 | *Columns = 0;\r |
| 1136 | *Rows = 0;\r |
| 1137 | return EFI_UNSUPPORTED;\r |
| 1138 | }\r |
| 1139 | \r |
| 1140 | switch (ModeNumber) {\r |
| 1141 | case 0:\r |
| 1142 | *Columns = 80;\r |
| 1143 | *Rows = 25;\r |
| 1144 | break;\r |
| 1145 | \r |
| 1146 | case 1:\r |
| 1147 | *Columns = 80;\r |
| 1148 | *Rows = 50;\r |
| 1149 | break;\r |
| 1150 | \r |
| 1151 | default:\r |
| 1152 | *Columns = 0;\r |
| 1153 | *Rows = 0;\r |
| 1154 | return EFI_UNSUPPORTED;\r |
| 1155 | }\r |
| 1156 | \r |
| 1157 | return EFI_SUCCESS;\r |
| 1158 | }\r |
| 1159 | \r |
| 1160 | EFI_STATUS\r |
| 1161 | EFIAPI\r |
| 1162 | VgaClassSetMode (\r |
| 1163 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 1164 | IN UINTN ModeNumber\r |
| 1165 | )\r |
| 1166 | /*++\r |
| 1167 | \r |
| 1168 | Routine Description:\r |
| 1169 | \r |
| 1170 | GC_TODO: Add function description\r |
| 1171 | \r |
| 1172 | Arguments:\r |
| 1173 | \r |
| 1174 | This - GC_TODO: add argument description\r |
| 1175 | ModeNumber - GC_TODO: add argument description\r |
| 1176 | \r |
| 1177 | Returns:\r |
| 1178 | \r |
| 1179 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r |
| 1180 | \r |
| 1181 | --*/\r |
| 1182 | {\r |
| 1183 | EFI_STATUS Status;\r |
| 1184 | VGA_CLASS_DEV *VgaClassDev;\r |
| 1185 | \r |
| 1186 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r |
| 1187 | \r |
| 1188 | if ((INT32) ModeNumber >= This->Mode->MaxMode) {\r |
| 1189 | return EFI_UNSUPPORTED;\r |
| 1190 | }\r |
| 1191 | \r |
| 1192 | This->ClearScreen (This);\r |
| 1193 | \r |
| 1194 | This->Mode->Mode = (INT32) ModeNumber;\r |
| 1195 | \r |
| 1196 | Status = VgaClassDev->VgaMiniPort->SetMode (VgaClassDev->VgaMiniPort, ModeNumber);\r |
| 1197 | \r |
| 1198 | return Status;\r |
| 1199 | }\r |
| 1200 | //\r |
| 1201 | // Private Worker Functions\r |
| 1202 | //\r |
| 1203 | STATIC\r |
| 1204 | VOID\r |
| 1205 | SetVideoCursorPosition (\r |
| 1206 | IN VGA_CLASS_DEV *VgaClassDev,\r |
| 1207 | IN UINTN Column,\r |
| 1208 | IN UINTN Row,\r |
| 1209 | IN UINTN MaxColumn\r |
| 1210 | )\r |
| 1211 | /*++\r |
| 1212 | \r |
| 1213 | Routine Description:\r |
| 1214 | \r |
| 1215 | GC_TODO: Add function description\r |
| 1216 | \r |
| 1217 | Arguments:\r |
| 1218 | \r |
| 1219 | VgaClassDev - GC_TODO: add argument description\r |
| 1220 | Column - GC_TODO: add argument description\r |
| 1221 | Row - GC_TODO: add argument description\r |
| 1222 | MaxColumn - GC_TODO: add argument description\r |
| 1223 | \r |
| 1224 | Returns:\r |
| 1225 | \r |
| 1226 | GC_TODO: add return values\r |
| 1227 | \r |
| 1228 | --*/\r |
| 1229 | {\r |
| 1230 | Column = Column & 0xff;\r |
| 1231 | Row = Row & 0xff;\r |
| 1232 | MaxColumn = MaxColumn & 0xff;\r |
| 1233 | WriteCrtc (\r |
| 1234 | VgaClassDev,\r |
| 1235 | CRTC_CURSOR_LOCATION_HIGH,\r |
| 1236 | (UINT8) ((Row * MaxColumn + Column) >> 8)\r |
| 1237 | );\r |
| 1238 | WriteCrtc (\r |
| 1239 | VgaClassDev,\r |
| 1240 | CRTC_CURSOR_LOCATION_LOW,\r |
| 1241 | (UINT8) ((Row * MaxColumn + Column) & 0xff)\r |
| 1242 | );\r |
| 1243 | }\r |
| 1244 | \r |
| 1245 | STATIC\r |
| 1246 | VOID\r |
| 1247 | WriteCrtc (\r |
| 1248 | IN VGA_CLASS_DEV *VgaClassDev,\r |
| 1249 | IN UINT16 Address,\r |
| 1250 | IN UINT8 Data\r |
| 1251 | )\r |
| 1252 | /*++\r |
| 1253 | \r |
| 1254 | Routine Description:\r |
| 1255 | \r |
| 1256 | GC_TODO: Add function description\r |
| 1257 | \r |
| 1258 | Arguments:\r |
| 1259 | \r |
| 1260 | VgaClassDev - GC_TODO: add argument description\r |
| 1261 | Address - GC_TODO: add argument description\r |
| 1262 | Data - GC_TODO: add argument description\r |
| 1263 | \r |
| 1264 | Returns:\r |
| 1265 | \r |
| 1266 | GC_TODO: add return values\r |
| 1267 | \r |
| 1268 | --*/\r |
| 1269 | {\r |
| 1270 | VgaClassDev->PciIo->Io.Write (\r |
| 1271 | VgaClassDev->PciIo,\r |
| 1272 | EfiPciIoWidthUint8,\r |
| 1273 | VgaClassDev->VgaMiniPort->CrtcAddressRegisterBar,\r |
| 1274 | VgaClassDev->VgaMiniPort->CrtcAddressRegisterOffset,\r |
| 1275 | 1,\r |
| 1276 | &Address\r |
| 1277 | );\r |
| 1278 | \r |
| 1279 | VgaClassDev->PciIo->Io.Write (\r |
| 1280 | VgaClassDev->PciIo,\r |
| 1281 | EfiPciIoWidthUint8,\r |
| 1282 | VgaClassDev->VgaMiniPort->CrtcDataRegisterBar,\r |
| 1283 | VgaClassDev->VgaMiniPort->CrtcDataRegisterOffset,\r |
| 1284 | 1,\r |
| 1285 | &Data\r |
| 1286 | );\r |
| 1287 | }\r |
| 1288 | \r |
| 1289 | STATIC\r |
| 1290 | BOOLEAN\r |
| 1291 | LibIsValidTextGraphics (\r |
| 1292 | IN CHAR16 Graphic,\r |
| 1293 | OUT CHAR8 *PcAnsi, OPTIONAL\r |
| 1294 | OUT CHAR8 *Ascii OPTIONAL\r |
| 1295 | )\r |
| 1296 | /*++\r |
| 1297 | \r |
| 1298 | Routine Description:\r |
| 1299 | \r |
| 1300 | Detects if a Unicode char is for Box Drawing text graphics.\r |
| 1301 | \r |
| 1302 | Arguments:\r |
| 1303 | \r |
| 1304 | Grphic - Unicode char to test.\r |
| 1305 | \r |
| 1306 | PcAnsi - Optional pointer to return PCANSI equivalent of Graphic.\r |
| 1307 | \r |
| 1308 | Asci - Optional pointer to return Ascii equivalent of Graphic.\r |
| 1309 | \r |
| 1310 | Returns:\r |
| 1311 | \r |
| 1312 | TRUE if Gpaphic is a supported Unicode Box Drawing character.\r |
| 1313 | \r |
| 1314 | --*/\r |
| 1315 | // GC_TODO: Graphic - add argument and description to function comment\r |
| 1316 | {\r |
| 1317 | UNICODE_TO_CHAR *Table;\r |
| 1318 | \r |
| 1319 | if ((((Graphic & 0xff00) != 0x2500) && ((Graphic & 0xff00) != 0x2100))) {\r |
| 1320 | //\r |
| 1321 | // Unicode drawing code charts are all in the 0x25xx range,\r |
| 1322 | // arrows are 0x21xx\r |
| 1323 | //\r |
| 1324 | return FALSE;\r |
| 1325 | }\r |
| 1326 | \r |
| 1327 | for (Table = UnicodeToPcAnsiOrAscii; Table->Unicode != 0x0000; Table++) {\r |
| 1328 | if (Graphic == Table->Unicode) {\r |
| 1329 | if (PcAnsi) {\r |
| 1330 | *PcAnsi = Table->PcAnsi;\r |
| 1331 | }\r |
| 1332 | \r |
| 1333 | if (Ascii) {\r |
| 1334 | *Ascii = Table->Ascii;\r |
| 1335 | }\r |
| 1336 | \r |
| 1337 | return TRUE;\r |
| 1338 | }\r |
| 1339 | }\r |
| 1340 | \r |
| 1341 | return FALSE;\r |
| 1342 | }\r |
| 1343 | \r |
| 1344 | STATIC\r |
| 1345 | BOOLEAN\r |
| 1346 | IsValidAscii (\r |
| 1347 | IN CHAR16 Ascii\r |
| 1348 | )\r |
| 1349 | /*++\r |
| 1350 | \r |
| 1351 | Routine Description:\r |
| 1352 | \r |
| 1353 | GC_TODO: Add function description\r |
| 1354 | \r |
| 1355 | Arguments:\r |
| 1356 | \r |
| 1357 | Ascii - GC_TODO: add argument description\r |
| 1358 | \r |
| 1359 | Returns:\r |
| 1360 | \r |
| 1361 | GC_TODO: add return values\r |
| 1362 | \r |
| 1363 | --*/\r |
| 1364 | {\r |
| 1365 | if ((Ascii >= 0x20) && (Ascii <= 0x7f)) {\r |
| 1366 | return TRUE;\r |
| 1367 | }\r |
| 1368 | \r |
| 1369 | return FALSE;\r |
| 1370 | }\r |
| 1371 | \r |
| 1372 | STATIC\r |
| 1373 | BOOLEAN\r |
| 1374 | IsValidEfiCntlChar (\r |
| 1375 | IN CHAR16 c\r |
| 1376 | )\r |
| 1377 | /*++\r |
| 1378 | \r |
| 1379 | Routine Description:\r |
| 1380 | \r |
| 1381 | GC_TODO: Add function description\r |
| 1382 | \r |
| 1383 | Arguments:\r |
| 1384 | \r |
| 1385 | c - GC_TODO: add argument description\r |
| 1386 | \r |
| 1387 | Returns:\r |
| 1388 | \r |
| 1389 | GC_TODO: add return values\r |
| 1390 | \r |
| 1391 | --*/\r |
| 1392 | {\r |
| 1393 | if (c == CHAR_NULL || c == CHAR_BACKSPACE || c == CHAR_LINEFEED || c == CHAR_CARRIAGE_RETURN) {\r |
| 1394 | return TRUE;\r |
| 1395 | }\r |
| 1396 | \r |
| 1397 | return FALSE;\r |
| 1398 | }\r |
projects / mirror_edk2.git / blame