| e081218d |
1 | /*++\r |
| 2 | \r |
| 3 | Copyright (c) 2006, Intel Corporation. All rights reserved. <BR> \r |
| 4 | This software and associated documentation (if any) is furnished\r |
| 5 | under a license and may only be used or copied in accordance\r |
| 6 | with the terms of the license. Except as permitted by such\r |
| 7 | license, no part of this software or documentation may be\r |
| 8 | reproduced, stored in a retrieval system, or transmitted in any\r |
| 9 | form or by any means without the express written consent of\r |
| 10 | Intel Corporation.\r |
| 11 | \r |
| 12 | \r |
| 13 | Module Name:\r |
| 14 | \r |
| 15 | VgaClass.c\r |
| 16 | \r |
| 17 | Abstract: \r |
| 18 | This driver produces a VGA console.\r |
| 19 | \r |
| 20 | --*/\r |
| 21 | \r |
| 22 | #include "VgaClass.h"\r |
| 23 | \r |
| 24 | //\r |
| 25 | // EFI Driver Binding Protocol for the VGA Class Driver\r |
| 26 | //\r |
| 27 | EFI_DRIVER_BINDING_PROTOCOL gVgaClassDriverBinding = {\r |
| 28 | VgaClassDriverBindingSupported,\r |
| 29 | VgaClassDriverBindingStart,\r |
| 30 | VgaClassDriverBindingStop,\r |
| 31 | 0xa,\r |
| 32 | NULL,\r |
| 33 | NULL\r |
| 34 | };\r |
| 35 | \r |
| 36 | /**\r |
| 37 | The user Entry Point for module VgaClass. The user code starts with this function.\r |
| 38 | \r |
| 39 | @param[in] ImageHandle The firmware allocated handle for the EFI image. \r |
| 40 | @param[in] SystemTable A pointer to the EFI System Table.\r |
| 41 | \r |
| 42 | @retval EFI_SUCCESS The entry point is executed successfully.\r |
| 43 | @retval other Some error occurs when executing this entry point.\r |
| 44 | \r |
| 45 | **/\r |
| 46 | EFI_STATUS\r |
| 47 | EFIAPI\r |
| 48 | InitializeVgaClass(\r |
| 49 | IN EFI_HANDLE ImageHandle,\r |
| 50 | IN EFI_SYSTEM_TABLE *SystemTable\r |
| 51 | )\r |
| 52 | {\r |
| 53 | EFI_STATUS Status;\r |
| 54 | \r |
| 55 | //\r |
| 56 | // Install driver model protocol(s).\r |
| 57 | //\r |
| 58 | Status = EfiLibInstallAllDriverProtocols (\r |
| 59 | ImageHandle,\r |
| 60 | SystemTable,\r |
| 61 | &gVgaClassDriverBinding,\r |
| 62 | ImageHandle,\r |
| 63 | &gVgaClassComponentName,\r |
| 64 | NULL,\r |
| 65 | NULL\r |
| 66 | );\r |
| 67 | ASSERT_EFI_ERROR (Status);\r |
| 68 | \r |
| 69 | \r |
| 70 | return Status;\r |
| 71 | }\r |
| 72 | \r |
| 73 | //\r |
| 74 | // Local variables\r |
| 75 | //\r |
| 76 | static CHAR16 CrLfString[3] = { CHAR_CARRIAGE_RETURN, CHAR_LINEFEED, CHAR_NULL };\r |
| 77 | \r |
| 78 | typedef struct {\r |
| 79 | CHAR16 Unicode;\r |
| 80 | CHAR8 PcAnsi;\r |
| 81 | CHAR8 Ascii;\r |
| 82 | } UNICODE_TO_CHAR;\r |
| 83 | \r |
| 84 | //\r |
| 85 | // This list is used to define the valid extend chars.\r |
| 86 | // It also provides a mapping from Unicode to PCANSI or\r |
| 87 | // ASCII. The ASCII mapping we just made up.\r |
| 88 | //\r |
| 89 | //\r |
| 90 | STATIC UNICODE_TO_CHAR UnicodeToPcAnsiOrAscii[] = {\r |
| 91 | {\r |
| 92 | BOXDRAW_HORIZONTAL,\r |
| 93 | 0xc4,\r |
| 94 | L'-'\r |
| 95 | },\r |
| 96 | {\r |
| 97 | BOXDRAW_VERTICAL,\r |
| 98 | 0xb3,\r |
| 99 | L'|'\r |
| 100 | },\r |
| 101 | {\r |
| 102 | BOXDRAW_DOWN_RIGHT,\r |
| 103 | 0xda,\r |
| 104 | L'/'\r |
| 105 | },\r |
| 106 | {\r |
| 107 | BOXDRAW_DOWN_LEFT,\r |
| 108 | 0xbf,\r |
| 109 | L'\\'\r |
| 110 | },\r |
| 111 | {\r |
| 112 | BOXDRAW_UP_RIGHT,\r |
| 113 | 0xc0,\r |
| 114 | L'\\'\r |
| 115 | },\r |
| 116 | {\r |
| 117 | BOXDRAW_UP_LEFT,\r |
| 118 | 0xd9,\r |
| 119 | L'/'\r |
| 120 | },\r |
| 121 | {\r |
| 122 | BOXDRAW_VERTICAL_RIGHT,\r |
| 123 | 0xc3,\r |
| 124 | L'|'\r |
| 125 | },\r |
| 126 | {\r |
| 127 | BOXDRAW_VERTICAL_LEFT,\r |
| 128 | 0xb4,\r |
| 129 | L'|'\r |
| 130 | },\r |
| 131 | {\r |
| 132 | BOXDRAW_DOWN_HORIZONTAL,\r |
| 133 | 0xc2,\r |
| 134 | L'+'\r |
| 135 | },\r |
| 136 | {\r |
| 137 | BOXDRAW_UP_HORIZONTAL,\r |
| 138 | 0xc1,\r |
| 139 | L'+'\r |
| 140 | },\r |
| 141 | {\r |
| 142 | BOXDRAW_VERTICAL_HORIZONTAL,\r |
| 143 | 0xc5,\r |
| 144 | L'+'\r |
| 145 | },\r |
| 146 | {\r |
| 147 | BOXDRAW_DOUBLE_HORIZONTAL,\r |
| 148 | 0xcd,\r |
| 149 | L'-'\r |
| 150 | },\r |
| 151 | {\r |
| 152 | BOXDRAW_DOUBLE_VERTICAL,\r |
| 153 | 0xba,\r |
| 154 | L'|'\r |
| 155 | },\r |
| 156 | {\r |
| 157 | BOXDRAW_DOWN_RIGHT_DOUBLE,\r |
| 158 | 0xd5,\r |
| 159 | L'/'\r |
| 160 | },\r |
| 161 | {\r |
| 162 | BOXDRAW_DOWN_DOUBLE_RIGHT,\r |
| 163 | 0xd6,\r |
| 164 | L'/'\r |
| 165 | },\r |
| 166 | {\r |
| 167 | BOXDRAW_DOUBLE_DOWN_RIGHT,\r |
| 168 | 0xc9,\r |
| 169 | L'/'\r |
| 170 | },\r |
| 171 | {\r |
| 172 | BOXDRAW_DOWN_LEFT_DOUBLE,\r |
| 173 | 0xb8,\r |
| 174 | L'\\'\r |
| 175 | },\r |
| 176 | {\r |
| 177 | BOXDRAW_DOWN_DOUBLE_LEFT,\r |
| 178 | 0xb7,\r |
| 179 | L'\\'\r |
| 180 | },\r |
| 181 | {\r |
| 182 | BOXDRAW_DOUBLE_DOWN_LEFT,\r |
| 183 | 0xbb,\r |
| 184 | L'\\'\r |
| 185 | },\r |
| 186 | {\r |
| 187 | BOXDRAW_UP_RIGHT_DOUBLE,\r |
| 188 | 0xd4,\r |
| 189 | L'\\'\r |
| 190 | },\r |
| 191 | {\r |
| 192 | BOXDRAW_UP_DOUBLE_RIGHT,\r |
| 193 | 0xd3,\r |
| 194 | L'\\'\r |
| 195 | },\r |
| 196 | {\r |
| 197 | BOXDRAW_DOUBLE_UP_RIGHT,\r |
| 198 | 0xc8,\r |
| 199 | L'\\'\r |
| 200 | },\r |
| 201 | {\r |
| 202 | BOXDRAW_UP_LEFT_DOUBLE,\r |
| 203 | 0xbe,\r |
| 204 | L'/'\r |
| 205 | },\r |
| 206 | {\r |
| 207 | BOXDRAW_UP_DOUBLE_LEFT,\r |
| 208 | 0xbd,\r |
| 209 | L'/'\r |
| 210 | },\r |
| 211 | {\r |
| 212 | BOXDRAW_DOUBLE_UP_LEFT,\r |
| 213 | 0xbc,\r |
| 214 | L'/'\r |
| 215 | },\r |
| 216 | {\r |
| 217 | BOXDRAW_VERTICAL_RIGHT_DOUBLE,\r |
| 218 | 0xc6,\r |
| 219 | L'|'\r |
| 220 | },\r |
| 221 | {\r |
| 222 | BOXDRAW_VERTICAL_DOUBLE_RIGHT,\r |
| 223 | 0xc7,\r |
| 224 | L'|'\r |
| 225 | },\r |
| 226 | {\r |
| 227 | BOXDRAW_DOUBLE_VERTICAL_RIGHT,\r |
| 228 | 0xcc,\r |
| 229 | L'|'\r |
| 230 | },\r |
| 231 | {\r |
| 232 | BOXDRAW_VERTICAL_LEFT_DOUBLE,\r |
| 233 | 0xb5,\r |
| 234 | L'|'\r |
| 235 | },\r |
| 236 | {\r |
| 237 | BOXDRAW_VERTICAL_DOUBLE_LEFT,\r |
| 238 | 0xb6,\r |
| 239 | L'|'\r |
| 240 | },\r |
| 241 | {\r |
| 242 | BOXDRAW_DOUBLE_VERTICAL_LEFT,\r |
| 243 | 0xb9,\r |
| 244 | L'|'\r |
| 245 | },\r |
| 246 | {\r |
| 247 | BOXDRAW_DOWN_HORIZONTAL_DOUBLE,\r |
| 248 | 0xd1,\r |
| 249 | L'+'\r |
| 250 | },\r |
| 251 | {\r |
| 252 | BOXDRAW_DOWN_DOUBLE_HORIZONTAL,\r |
| 253 | 0xd2,\r |
| 254 | L'+'\r |
| 255 | },\r |
| 256 | {\r |
| 257 | BOXDRAW_DOUBLE_DOWN_HORIZONTAL,\r |
| 258 | 0xcb,\r |
| 259 | L'+'\r |
| 260 | },\r |
| 261 | {\r |
| 262 | BOXDRAW_UP_HORIZONTAL_DOUBLE,\r |
| 263 | 0xcf,\r |
| 264 | L'+'\r |
| 265 | },\r |
| 266 | {\r |
| 267 | BOXDRAW_UP_DOUBLE_HORIZONTAL,\r |
| 268 | 0xd0,\r |
| 269 | L'+'\r |
| 270 | },\r |
| 271 | {\r |
| 272 | BOXDRAW_DOUBLE_UP_HORIZONTAL,\r |
| 273 | 0xca,\r |
| 274 | L'+'\r |
| 275 | },\r |
| 276 | {\r |
| 277 | BOXDRAW_VERTICAL_HORIZONTAL_DOUBLE,\r |
| 278 | 0xd8,\r |
| 279 | L'+'\r |
| 280 | },\r |
| 281 | {\r |
| 282 | BOXDRAW_VERTICAL_DOUBLE_HORIZONTAL,\r |
| 283 | 0xd7,\r |
| 284 | L'+'\r |
| 285 | },\r |
| 286 | {\r |
| 287 | BOXDRAW_DOUBLE_VERTICAL_HORIZONTAL,\r |
| 288 | 0xce,\r |
| 289 | L'+'\r |
| 290 | },\r |
| 291 | \r |
| 292 | {\r |
| 293 | BLOCKELEMENT_FULL_BLOCK,\r |
| 294 | 0xdb,\r |
| 295 | L'*'\r |
| 296 | },\r |
| 297 | {\r |
| 298 | BLOCKELEMENT_LIGHT_SHADE,\r |
| 299 | 0xb0,\r |
| 300 | L'+'\r |
| 301 | },\r |
| 302 | \r |
| 303 | {\r |
| 304 | GEOMETRICSHAPE_UP_TRIANGLE,\r |
| 305 | 0x1e,\r |
| 306 | L'^'\r |
| 307 | },\r |
| 308 | {\r |
| 309 | GEOMETRICSHAPE_RIGHT_TRIANGLE,\r |
| 310 | 0x10,\r |
| 311 | L'>'\r |
| 312 | },\r |
| 313 | {\r |
| 314 | GEOMETRICSHAPE_DOWN_TRIANGLE,\r |
| 315 | 0x1f,\r |
| 316 | L'v'\r |
| 317 | },\r |
| 318 | {\r |
| 319 | GEOMETRICSHAPE_LEFT_TRIANGLE,\r |
| 320 | 0x11,\r |
| 321 | L'<'\r |
| 322 | },\r |
| 323 | \r |
| 324 | {\r |
| 325 | ARROW_LEFT,\r |
| 326 | 0x3c,\r |
| 327 | L'<'\r |
| 328 | },\r |
| 329 | \r |
| 330 | {\r |
| 331 | ARROW_UP,\r |
| 332 | 0x18,\r |
| 333 | L'^'\r |
| 334 | },\r |
| 335 | \r |
| 336 | {\r |
| 337 | ARROW_RIGHT,\r |
| 338 | 0x3e,\r |
| 339 | L'>'\r |
| 340 | },\r |
| 341 | \r |
| 342 | {\r |
| 343 | ARROW_DOWN,\r |
| 344 | 0x19,\r |
| 345 | L'v'\r |
| 346 | },\r |
| 347 | \r |
| 348 | {\r |
| 349 | 0x0000,\r |
| 350 | 0x00,\r |
| 351 | 0x00\r |
| 352 | }\r |
| 353 | };\r |
| 354 | \r |
| 355 | //\r |
| 356 | // Private worker functions\r |
| 357 | //\r |
| 358 | STATIC\r |
| 359 | VOID\r |
| 360 | SetVideoCursorPosition (\r |
| 361 | IN VGA_CLASS_DEV *VgaClassDev,\r |
| 362 | IN UINTN Column,\r |
| 363 | IN UINTN Row,\r |
| 364 | IN UINTN MaxColumn\r |
| 365 | );\r |
| 366 | \r |
| 367 | STATIC\r |
| 368 | VOID\r |
| 369 | WriteCrtc (\r |
| 370 | IN VGA_CLASS_DEV *VgaClassDev,\r |
| 371 | IN UINT16 Address,\r |
| 372 | IN UINT8 Data\r |
| 373 | );\r |
| 374 | \r |
| 375 | STATIC\r |
| 376 | BOOLEAN\r |
| 377 | LibIsValidTextGraphics (\r |
| 378 | IN CHAR16 Graphic,\r |
| 379 | OUT CHAR8 *PcAnsi, OPTIONAL\r |
| 380 | OUT CHAR8 *Ascii OPTIONAL\r |
| 381 | );\r |
| 382 | \r |
| 383 | STATIC\r |
| 384 | BOOLEAN\r |
| 385 | IsValidAscii (\r |
| 386 | IN CHAR16 Ascii\r |
| 387 | );\r |
| 388 | \r |
| 389 | STATIC\r |
| 390 | BOOLEAN\r |
| 391 | IsValidEfiCntlChar (\r |
| 392 | IN CHAR16 c\r |
| 393 | );\r |
| 394 | \r |
| 395 | EFI_STATUS\r |
| 396 | EFIAPI\r |
| 397 | VgaClassDriverBindingSupported (\r |
| 398 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 399 | IN EFI_HANDLE Controller,\r |
| 400 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 401 | )\r |
| 402 | /*++\r |
| 403 | \r |
| 404 | Routine Description:\r |
| 405 | \r |
| 406 | Supported.\r |
| 407 | \r |
| 408 | Arguments:\r |
| 409 | \r |
| 410 | (Standard DriverBinding Protocol Supported() function)\r |
| 411 | \r |
| 412 | Returns:\r |
| 413 | \r |
| 414 | EFI_STATUS\r |
| 415 | \r |
| 416 | --*/\r |
| 417 | // GC_TODO: This - add argument and description to function comment\r |
| 418 | // GC_TODO: Controller - add argument and description to function comment\r |
| 419 | // GC_TODO: RemainingDevicePath - add argument and description to function comment\r |
| 420 | {\r |
| 421 | EFI_STATUS Status;\r |
| 422 | EFI_VGA_MINI_PORT_PROTOCOL *VgaMiniPort;\r |
| 423 | \r |
| 424 | //\r |
| 425 | // Open the IO Abstraction(s) needed to perform the supported test\r |
| 426 | //\r |
| 427 | Status = gBS->OpenProtocol (\r |
| 428 | Controller,\r |
| 429 | &gEfiVgaMiniPortProtocolGuid,\r |
| 430 | (VOID **) &VgaMiniPort,\r |
| 431 | This->DriverBindingHandle,\r |
| 432 | Controller,\r |
| 433 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r |
| 434 | );\r |
| 435 | if (EFI_ERROR (Status)) {\r |
| 436 | return Status;\r |
| 437 | }\r |
| 438 | //\r |
| 439 | // Open the IO Abstraction(s) needed to perform the supported test\r |
| 440 | //\r |
| 441 | Status = gBS->OpenProtocol (\r |
| 442 | Controller,\r |
| 443 | &gEfiPciIoProtocolGuid,\r |
| 444 | NULL,\r |
| 445 | This->DriverBindingHandle,\r |
| 446 | Controller,\r |
| 447 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r |
| 448 | );\r |
| 449 | if (EFI_ERROR (Status)) {\r |
| 450 | return Status;\r |
| 451 | }\r |
| 452 | \r |
| 453 | return Status;\r |
| 454 | }\r |
| 455 | \r |
| 456 | EFI_STATUS\r |
| 457 | EFIAPI\r |
| 458 | VgaClassDriverBindingStart (\r |
| 459 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 460 | IN EFI_HANDLE Controller,\r |
| 461 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 462 | )\r |
| 463 | /*++\r |
| 464 | \r |
| 465 | Routine Description:\r |
| 466 | \r |
| 467 | Layers the Simple Text Output Protocol on top of the \r |
| 468 | VGA Mini Port Protocol\r |
| 469 | \r |
| 470 | Arguments:\r |
| 471 | \r |
| 472 | (Standard DriverBinding Protocol Start() function)\r |
| 473 | \r |
| 474 | Returns:\r |
| 475 | \r |
| 476 | EFI_STATUS\r |
| 477 | \r |
| 478 | --*/\r |
| 479 | // GC_TODO: This - add argument and description to function comment\r |
| 480 | // GC_TODO: Controller - add argument and description to function comment\r |
| 481 | // GC_TODO: RemainingDevicePath - add argument and description to function comment\r |
| 482 | // GC_TODO: EFI_OUT_OF_RESOURCES - add return value to function comment\r |
| 483 | {\r |
| 484 | EFI_STATUS Status;\r |
| 485 | EFI_VGA_MINI_PORT_PROTOCOL *VgaMiniPort;\r |
| 486 | EFI_PCI_IO_PROTOCOL *PciIo;\r |
| 487 | VGA_CLASS_DEV *VgaClassPrivate;\r |
| 488 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
| 489 | \r |
| 490 | Status = gBS->HandleProtocol (\r |
| 491 | Controller,\r |
| 492 | &gEfiDevicePathProtocolGuid,\r |
| 493 | (VOID **) &DevicePath\r |
| 494 | );\r |
| 495 | if (EFI_ERROR (Status)) {\r |
| 496 | return Status;\r |
| 497 | }\r |
| 498 | //\r |
| 499 | // Report that VGA Class driver is being enabled\r |
| 500 | //\r |
| 501 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
| 502 | EFI_PROGRESS_CODE,\r |
| 503 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_PC_ENABLE,\r |
| 504 | DevicePath\r |
| 505 | );\r |
| 506 | \r |
| 507 | //\r |
| 508 | // Open the IO Abstraction(s) needed\r |
| 509 | //\r |
| 510 | Status = gBS->OpenProtocol (\r |
| 511 | Controller,\r |
| 512 | &gEfiPciIoProtocolGuid,\r |
| 513 | (VOID **) &PciIo,\r |
| 514 | This->DriverBindingHandle,\r |
| 515 | Controller,\r |
| 516 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 517 | );\r |
| 518 | if (EFI_ERROR (Status)) {\r |
| 519 | return Status;\r |
| 520 | }\r |
| 521 | \r |
| 522 | Status = gBS->OpenProtocol (\r |
| 523 | Controller,\r |
| 524 | &gEfiVgaMiniPortProtocolGuid,\r |
| 525 | (VOID **) &VgaMiniPort,\r |
| 526 | This->DriverBindingHandle,\r |
| 527 | Controller,\r |
| 528 | EFI_OPEN_PROTOCOL_BY_DRIVER\r |
| 529 | );\r |
| 530 | if (EFI_ERROR (Status)) {\r |
| 531 | return Status;\r |
| 532 | }\r |
| 533 | //\r |
| 534 | // Allocate the private device structure\r |
| 535 | //\r |
| 536 | Status = gBS->AllocatePool (\r |
| 537 | EfiBootServicesData,\r |
| 538 | sizeof (VGA_CLASS_DEV),\r |
| 539 | (VOID **) &VgaClassPrivate\r |
| 540 | );\r |
| 541 | if (EFI_ERROR (Status)) {\r |
| 542 | gBS->CloseProtocol (\r |
| 543 | Controller,\r |
| 544 | &gEfiVgaMiniPortProtocolGuid,\r |
| 545 | This->DriverBindingHandle,\r |
| 546 | Controller\r |
| 547 | );\r |
| 548 | return EFI_OUT_OF_RESOURCES;\r |
| 549 | }\r |
| 550 | \r |
| 551 | ZeroMem (VgaClassPrivate, sizeof (VGA_CLASS_DEV));\r |
| 552 | \r |
| 553 | //\r |
| 554 | // Initialize the private device structure\r |
| 555 | //\r |
| 556 | VgaClassPrivate->Signature = VGA_CLASS_DEV_SIGNATURE;\r |
| 557 | VgaClassPrivate->Handle = Controller;\r |
| 558 | VgaClassPrivate->VgaMiniPort = VgaMiniPort;\r |
| 559 | VgaClassPrivate->PciIo = PciIo;\r |
| 560 | \r |
| 561 | VgaClassPrivate->SimpleTextOut.Reset = VgaClassReset;\r |
| 562 | VgaClassPrivate->SimpleTextOut.OutputString = VgaClassOutputString;\r |
| 563 | VgaClassPrivate->SimpleTextOut.TestString = VgaClassTestString;\r |
| 564 | VgaClassPrivate->SimpleTextOut.ClearScreen = VgaClassClearScreen;\r |
| 565 | VgaClassPrivate->SimpleTextOut.SetAttribute = VgaClassSetAttribute;\r |
| 566 | VgaClassPrivate->SimpleTextOut.SetCursorPosition = VgaClassSetCursorPosition;\r |
| 567 | VgaClassPrivate->SimpleTextOut.EnableCursor = VgaClassEnableCursor;\r |
| 568 | VgaClassPrivate->SimpleTextOut.QueryMode = VgaClassQueryMode;\r |
| 569 | VgaClassPrivate->SimpleTextOut.SetMode = VgaClassSetMode;\r |
| 570 | \r |
| 571 | VgaClassPrivate->SimpleTextOut.Mode = &VgaClassPrivate->SimpleTextOutputMode;\r |
| 572 | VgaClassPrivate->SimpleTextOutputMode.MaxMode = VgaMiniPort->MaxMode;\r |
| 573 | VgaClassPrivate->DevicePath = DevicePath;\r |
| 574 | \r |
| 575 | Status = VgaClassPrivate->SimpleTextOut.SetAttribute (\r |
| 576 | &VgaClassPrivate->SimpleTextOut,\r |
| 577 | EFI_TEXT_ATTR (EFI_WHITE,\r |
| 578 | EFI_BLACK)\r |
| 579 | );\r |
| 580 | if (EFI_ERROR (Status)) {\r |
| 581 | goto ErrorExit;\r |
| 582 | }\r |
| 583 | \r |
| 584 | Status = VgaClassPrivate->SimpleTextOut.Reset (\r |
| 585 | &VgaClassPrivate->SimpleTextOut,\r |
| 586 | FALSE\r |
| 587 | );\r |
| 588 | if (EFI_ERROR (Status)) {\r |
| 589 | goto ErrorExit;\r |
| 590 | }\r |
| 591 | \r |
| 592 | Status = VgaClassPrivate->SimpleTextOut.EnableCursor (\r |
| 593 | &VgaClassPrivate->SimpleTextOut,\r |
| 594 | TRUE\r |
| 595 | );\r |
| 596 | if (EFI_ERROR (Status)) {\r |
| 597 | goto ErrorExit;\r |
| 598 | }\r |
| 599 | \r |
| 600 | Status = gBS->InstallMultipleProtocolInterfaces (\r |
| 601 | &Controller,\r |
| 602 | &gEfiSimpleTextOutProtocolGuid,\r |
| 603 | &VgaClassPrivate->SimpleTextOut,\r |
| 604 | NULL\r |
| 605 | );\r |
| 606 | \r |
| 607 | return Status;\r |
| 608 | \r |
| 609 | ErrorExit:\r |
| 610 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
| 611 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r |
| 612 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_EC_CONTROLLER_ERROR,\r |
| 613 | DevicePath\r |
| 614 | );\r |
| 615 | \r |
| 616 | return Status;\r |
| 617 | \r |
| 618 | }\r |
| 619 | \r |
| 620 | EFI_STATUS\r |
| 621 | EFIAPI\r |
| 622 | VgaClassDriverBindingStop (\r |
| 623 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 624 | IN EFI_HANDLE Controller,\r |
| 625 | IN UINTN NumberOfChildren,\r |
| 626 | IN EFI_HANDLE *ChildHandleBuffer\r |
| 627 | )\r |
| 628 | /*++\r |
| 629 | \r |
| 630 | Routine Description:\r |
| 631 | \r |
| 632 | Stop.\r |
| 633 | \r |
| 634 | Arguments:\r |
| 635 | \r |
| 636 | (Standard DriverBinding Protocol Stop() function)\r |
| 637 | \r |
| 638 | Returns:\r |
| 639 | \r |
| 640 | EFI_STATUS\r |
| 641 | \r |
| 642 | --*/\r |
| 643 | // GC_TODO: This - add argument and description to function comment\r |
| 644 | // GC_TODO: Controller - add argument and description to function comment\r |
| 645 | // GC_TODO: NumberOfChildren - add argument and description to function comment\r |
| 646 | // GC_TODO: ChildHandleBuffer - add argument and description to function comment\r |
| 647 | // GC_TODO: EFI_SUCCESS - add return value to function comment\r |
| 648 | {\r |
| 649 | EFI_STATUS Status;\r |
| 650 | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *SimpleTextOut;\r |
| 651 | VGA_CLASS_DEV *VgaClassPrivate;\r |
| 652 | \r |
| 653 | Status = gBS->OpenProtocol (\r |
| 654 | Controller,\r |
| 655 | &gEfiSimpleTextOutProtocolGuid,\r |
| 656 | (VOID **) &SimpleTextOut,\r |
| 657 | This->DriverBindingHandle,\r |
| 658 | Controller,\r |
| 659 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 660 | );\r |
| 661 | if (EFI_ERROR (Status)) {\r |
| 662 | return Status;\r |
| 663 | }\r |
| 664 | \r |
| 665 | VgaClassPrivate = VGA_CLASS_DEV_FROM_THIS (SimpleTextOut);\r |
| 666 | \r |
| 667 | //\r |
| 668 | // Report that VGA Class driver is being disabled\r |
| 669 | //\r |
| 670 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
| 671 | EFI_PROGRESS_CODE,\r |
| 672 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_PC_DISABLE,\r |
| 673 | VgaClassPrivate->DevicePath\r |
| 674 | );\r |
| 675 | \r |
| 676 | Status = gBS->UninstallProtocolInterface (\r |
| 677 | Controller,\r |
| 678 | &gEfiSimpleTextOutProtocolGuid,\r |
| 679 | &VgaClassPrivate->SimpleTextOut\r |
| 680 | );\r |
| 681 | if (EFI_ERROR (Status)) {\r |
| 682 | return Status;\r |
| 683 | }\r |
| 684 | //\r |
| 685 | // Release PCI I/O and VGA Mini Port Protocols on the controller handle.\r |
| 686 | //\r |
| 687 | gBS->CloseProtocol (\r |
| 688 | Controller,\r |
| 689 | &gEfiPciIoProtocolGuid,\r |
| 690 | This->DriverBindingHandle,\r |
| 691 | Controller\r |
| 692 | );\r |
| 693 | \r |
| 694 | gBS->CloseProtocol (\r |
| 695 | Controller,\r |
| 696 | &gEfiVgaMiniPortProtocolGuid,\r |
| 697 | This->DriverBindingHandle,\r |
| 698 | Controller\r |
| 699 | );\r |
| 700 | \r |
| 701 | gBS->FreePool (VgaClassPrivate);\r |
| 702 | \r |
| 703 | return EFI_SUCCESS;\r |
| 704 | }\r |
| 705 | //\r |
| 706 | // Simple Text Output Protocol Functions\r |
| 707 | //\r |
| 708 | EFI_STATUS\r |
| 709 | EFIAPI\r |
| 710 | VgaClassReset (\r |
| 711 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 712 | IN BOOLEAN ExtendedVerification\r |
| 713 | )\r |
| 714 | /*++\r |
| 715 | \r |
| 716 | Routine Description:\r |
| 717 | \r |
| 718 | GC_TODO: Add function description\r |
| 719 | \r |
| 720 | Arguments:\r |
| 721 | \r |
| 722 | This - GC_TODO: add argument description\r |
| 723 | ExtendedVerification - GC_TODO: add argument description\r |
| 724 | \r |
| 725 | Returns:\r |
| 726 | \r |
| 727 | GC_TODO: add return values\r |
| 728 | \r |
| 729 | --*/\r |
| 730 | {\r |
| 731 | EFI_STATUS Status;\r |
| 732 | VGA_CLASS_DEV *VgaClassPrivate;\r |
| 733 | \r |
| 734 | VgaClassPrivate = VGA_CLASS_DEV_FROM_THIS (This);\r |
| 735 | \r |
| 736 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r |
| 737 | EFI_PROGRESS_CODE,\r |
| 738 | EFI_PERIPHERAL_LOCAL_CONSOLE | EFI_P_PC_RESET,\r |
| 739 | VgaClassPrivate->DevicePath\r |
| 740 | );\r |
| 741 | \r |
| 742 | This->SetAttribute (This, EFI_TEXT_ATTR (This->Mode->Attribute & 0x0F, EFI_BACKGROUND_BLACK));\r |
| 743 | \r |
| 744 | Status = This->SetMode (This, 0);\r |
| 745 | if (EFI_ERROR (Status)) {\r |
| 746 | return Status;\r |
| 747 | }\r |
| 748 | \r |
| 749 | return This->ClearScreen (This);\r |
| 750 | }\r |
| 751 | \r |
| 752 | EFI_STATUS\r |
| 753 | EFIAPI\r |
| 754 | VgaClassOutputString (\r |
| 755 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 756 | IN CHAR16 *WString\r |
| 757 | )\r |
| 758 | /*++\r |
| 759 | \r |
| 760 | Routine Description:\r |
| 761 | \r |
| 762 | GC_TODO: Add function description\r |
| 763 | \r |
| 764 | Arguments:\r |
| 765 | \r |
| 766 | This - GC_TODO: add argument description\r |
| 767 | WString - GC_TODO: add argument description\r |
| 768 | \r |
| 769 | Returns:\r |
| 770 | \r |
| 771 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 772 | \r |
| 773 | --*/\r |
| 774 | {\r |
| 775 | EFI_STATUS Status;\r |
| 776 | VGA_CLASS_DEV *VgaClassDev;\r |
| 777 | EFI_SIMPLE_TEXT_OUTPUT_MODE *Mode;\r |
| 778 | UINTN MaxColumn;\r |
| 779 | UINTN MaxRow;\r |
| 780 | UINT32 VideoChar;\r |
| 781 | CHAR8 GraphicChar;\r |
| 782 | \r |
| 783 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r |
| 784 | \r |
| 785 | Mode = This->Mode;\r |
| 786 | \r |
| 787 | Status = This->QueryMode (\r |
| 788 | This,\r |
| 789 | Mode->Mode,\r |
| 790 | &MaxColumn,\r |
| 791 | &MaxRow\r |
| 792 | );\r |
| 793 | if (EFI_ERROR (Status)) {\r |
| 794 | return Status;\r |
| 795 | }\r |
| 796 | \r |
| 797 | for (; *WString != CHAR_NULL; WString++) {\r |
| 798 | \r |
| 799 | switch (*WString) {\r |
| 800 | case CHAR_BACKSPACE:\r |
| 801 | if (Mode->CursorColumn > 0) {\r |
| 802 | Mode->CursorColumn--;\r |
| 803 | }\r |
| 804 | break;\r |
| 805 | \r |
| 806 | case CHAR_LINEFEED:\r |
| 807 | if (Mode->CursorRow == (INT32) (MaxRow - 1)) {\r |
| 808 | //\r |
| 809 | // Scroll the screen by copying the contents\r |
| 810 | // of the VGA display up one line\r |
| 811 | //\r |
| 812 | VgaClassDev->PciIo->CopyMem (\r |
| 813 | VgaClassDev->PciIo,\r |
| 814 | EfiPciIoWidthUint32,\r |
| 815 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r |
| 816 | VgaClassDev->VgaMiniPort->VgaMemoryOffset,\r |
| 817 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r |
| 818 | VgaClassDev->VgaMiniPort->VgaMemoryOffset + MaxColumn * 2,\r |
| 819 | ((MaxRow - 1) * MaxColumn) >> 1\r |
| 820 | );\r |
| 821 | \r |
| 822 | //\r |
| 823 | // Print Blank Line of spaces with the current color attributes\r |
| 824 | //\r |
| 825 | VideoChar = (Mode->Attribute << 8) | ' ';\r |
| 826 | VideoChar = (VideoChar << 16) | VideoChar;\r |
| 827 | VgaClassDev->PciIo->Mem.Write (\r |
| 828 | VgaClassDev->PciIo,\r |
| 829 | EfiPciIoWidthFillUint32,\r |
| 830 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r |
| 831 | VgaClassDev->VgaMiniPort->VgaMemoryOffset + (MaxRow - 1) * MaxColumn * 2,\r |
| 832 | MaxColumn >> 1,\r |
| 833 | &VideoChar\r |
| 834 | );\r |
| 835 | }\r |
| 836 | \r |
| 837 | if (Mode->CursorRow < (INT32) (MaxRow - 1)) {\r |
| 838 | Mode->CursorRow++;\r |
| 839 | }\r |
| 840 | break;\r |
| 841 | \r |
| 842 | case CHAR_CARRIAGE_RETURN:\r |
| 843 | Mode->CursorColumn = 0;\r |
| 844 | break;\r |
| 845 | \r |
| 846 | default:\r |
| 847 | if (!LibIsValidTextGraphics (*WString, &GraphicChar, NULL)) {\r |
| 848 | //\r |
| 849 | // Just convert to ASCII\r |
| 850 | //\r |
| 851 | GraphicChar = (CHAR8) *WString;\r |
| 852 | if (!IsValidAscii (GraphicChar)) {\r |
| 853 | //\r |
| 854 | // Keep the API from supporting PCANSI Graphics chars\r |
| 855 | //\r |
| 856 | GraphicChar = '?';\r |
| 857 | }\r |
| 858 | }\r |
| 859 | \r |
| 860 | VideoChar = (Mode->Attribute << 8) | GraphicChar;\r |
| 861 | VgaClassDev->PciIo->Mem.Write (\r |
| 862 | VgaClassDev->PciIo,\r |
| 863 | EfiPciIoWidthUint16,\r |
| 864 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r |
| 865 | VgaClassDev->VgaMiniPort->VgaMemoryOffset + ((Mode->CursorRow * MaxColumn + Mode->CursorColumn) * 2),\r |
| 866 | 1,\r |
| 867 | &VideoChar\r |
| 868 | );\r |
| 869 | \r |
| 870 | if (Mode->CursorColumn >= (INT32) (MaxColumn - 1)) {\r |
| 871 | This->OutputString (This, CrLfString);\r |
| 872 | } else {\r |
| 873 | Mode->CursorColumn++;\r |
| 874 | }\r |
| 875 | break;\r |
| 876 | }\r |
| 877 | }\r |
| 878 | \r |
| 879 | SetVideoCursorPosition (\r |
| 880 | VgaClassDev,\r |
| 881 | (UINTN) Mode->CursorColumn,\r |
| 882 | (UINTN) Mode->CursorRow,\r |
| 883 | MaxColumn\r |
| 884 | );\r |
| 885 | \r |
| 886 | return EFI_SUCCESS;\r |
| 887 | }\r |
| 888 | \r |
| 889 | EFI_STATUS\r |
| 890 | EFIAPI\r |
| 891 | VgaClassTestString (\r |
| 892 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 893 | IN CHAR16 *WString\r |
| 894 | )\r |
| 895 | /*++\r |
| 896 | \r |
| 897 | Routine Description:\r |
| 898 | \r |
| 899 | GC_TODO: Add function description\r |
| 900 | \r |
| 901 | Arguments:\r |
| 902 | \r |
| 903 | This - GC_TODO: add argument description\r |
| 904 | WString - GC_TODO: add argument description\r |
| 905 | \r |
| 906 | Returns:\r |
| 907 | \r |
| 908 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r |
| 909 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 910 | \r |
| 911 | --*/\r |
| 912 | {\r |
| 913 | while (*WString != 0x0000) {\r |
| 914 | if (!(IsValidAscii (*WString) || IsValidEfiCntlChar (*WString) || LibIsValidTextGraphics (*WString, NULL, NULL))) {\r |
| 915 | return EFI_UNSUPPORTED;\r |
| 916 | }\r |
| 917 | \r |
| 918 | WString++;\r |
| 919 | }\r |
| 920 | \r |
| 921 | return EFI_SUCCESS;\r |
| 922 | }\r |
| 923 | \r |
| 924 | EFI_STATUS\r |
| 925 | EFIAPI\r |
| 926 | VgaClassClearScreen (\r |
| 927 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This\r |
| 928 | )\r |
| 929 | /*++\r |
| 930 | \r |
| 931 | Routine Description:\r |
| 932 | \r |
| 933 | GC_TODO: Add function description\r |
| 934 | \r |
| 935 | Arguments:\r |
| 936 | \r |
| 937 | This - GC_TODO: add argument description\r |
| 938 | \r |
| 939 | Returns:\r |
| 940 | \r |
| 941 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 942 | \r |
| 943 | --*/\r |
| 944 | {\r |
| 945 | EFI_STATUS Status;\r |
| 946 | VGA_CLASS_DEV *VgaClassDev;\r |
| 947 | UINTN MaxRow;\r |
| 948 | UINTN MaxColumn;\r |
| 949 | UINT32 VideoChar;\r |
| 950 | \r |
| 951 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r |
| 952 | \r |
| 953 | Status = This->QueryMode (\r |
| 954 | This,\r |
| 955 | This->Mode->Mode,\r |
| 956 | &MaxColumn,\r |
| 957 | &MaxRow\r |
| 958 | );\r |
| 959 | if (EFI_ERROR (Status)) {\r |
| 960 | return Status;\r |
| 961 | }\r |
| 962 | \r |
| 963 | VideoChar = (This->Mode->Attribute << 8) | ' ';\r |
| 964 | VideoChar = (VideoChar << 16) | VideoChar;\r |
| 965 | VgaClassDev->PciIo->Mem.Write (\r |
| 966 | VgaClassDev->PciIo,\r |
| 967 | EfiPciIoWidthFillUint32,\r |
| 968 | VgaClassDev->VgaMiniPort->VgaMemoryBar,\r |
| 969 | VgaClassDev->VgaMiniPort->VgaMemoryOffset,\r |
| 970 | (MaxRow * MaxColumn) >> 1,\r |
| 971 | &VideoChar\r |
| 972 | );\r |
| 973 | \r |
| 974 | This->SetCursorPosition (This, 0, 0);\r |
| 975 | \r |
| 976 | return EFI_SUCCESS;\r |
| 977 | }\r |
| 978 | \r |
| 979 | EFI_STATUS\r |
| 980 | EFIAPI\r |
| 981 | VgaClassSetAttribute (\r |
| 982 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 983 | IN UINTN Attribute\r |
| 984 | )\r |
| 985 | /*++\r |
| 986 | \r |
| 987 | Routine Description:\r |
| 988 | \r |
| 989 | GC_TODO: Add function description\r |
| 990 | \r |
| 991 | Arguments:\r |
| 992 | \r |
| 993 | This - GC_TODO: add argument description\r |
| 994 | Attribute - GC_TODO: add argument description\r |
| 995 | \r |
| 996 | Returns:\r |
| 997 | \r |
| 998 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 999 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r |
| 1000 | \r |
| 1001 | --*/\r |
| 1002 | {\r |
| 1003 | if (Attribute <= EFI_MAX_ATTRIBUTE) {\r |
| 1004 | This->Mode->Attribute = (INT32) Attribute;\r |
| 1005 | return EFI_SUCCESS;\r |
| 1006 | }\r |
| 1007 | \r |
| 1008 | return EFI_UNSUPPORTED;\r |
| 1009 | }\r |
| 1010 | \r |
| 1011 | EFI_STATUS\r |
| 1012 | EFIAPI\r |
| 1013 | VgaClassSetCursorPosition (\r |
| 1014 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 1015 | IN UINTN Column,\r |
| 1016 | IN UINTN Row\r |
| 1017 | )\r |
| 1018 | /*++\r |
| 1019 | \r |
| 1020 | Routine Description:\r |
| 1021 | \r |
| 1022 | GC_TODO: Add function description\r |
| 1023 | \r |
| 1024 | Arguments:\r |
| 1025 | \r |
| 1026 | This - GC_TODO: add argument description\r |
| 1027 | Column - GC_TODO: add argument description\r |
| 1028 | Row - GC_TODO: add argument description\r |
| 1029 | \r |
| 1030 | Returns:\r |
| 1031 | \r |
| 1032 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r |
| 1033 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 1034 | \r |
| 1035 | --*/\r |
| 1036 | {\r |
| 1037 | EFI_STATUS Status;\r |
| 1038 | VGA_CLASS_DEV *VgaClassDev;\r |
| 1039 | UINTN MaxColumn;\r |
| 1040 | UINTN MaxRow;\r |
| 1041 | \r |
| 1042 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r |
| 1043 | \r |
| 1044 | Status = This->QueryMode (\r |
| 1045 | This,\r |
| 1046 | This->Mode->Mode,\r |
| 1047 | &MaxColumn,\r |
| 1048 | &MaxRow\r |
| 1049 | );\r |
| 1050 | if (EFI_ERROR (Status)) {\r |
| 1051 | return Status;\r |
| 1052 | }\r |
| 1053 | \r |
| 1054 | if (Column >= MaxColumn || Row >= MaxRow) {\r |
| 1055 | return EFI_UNSUPPORTED;\r |
| 1056 | }\r |
| 1057 | \r |
| 1058 | SetVideoCursorPosition (VgaClassDev, Column, Row, MaxColumn);\r |
| 1059 | \r |
| 1060 | This->Mode->CursorColumn = (INT32) Column;\r |
| 1061 | This->Mode->CursorRow = (INT32) Row;\r |
| 1062 | \r |
| 1063 | return EFI_SUCCESS;\r |
| 1064 | }\r |
| 1065 | \r |
| 1066 | EFI_STATUS\r |
| 1067 | EFIAPI\r |
| 1068 | VgaClassEnableCursor (\r |
| 1069 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 1070 | IN BOOLEAN Visible\r |
| 1071 | )\r |
| 1072 | /*++\r |
| 1073 | \r |
| 1074 | Routine Description:\r |
| 1075 | \r |
| 1076 | GC_TODO: Add function description\r |
| 1077 | \r |
| 1078 | Arguments:\r |
| 1079 | \r |
| 1080 | This - GC_TODO: add argument description\r |
| 1081 | Visible - GC_TODO: add argument description\r |
| 1082 | \r |
| 1083 | Returns:\r |
| 1084 | \r |
| 1085 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 1086 | \r |
| 1087 | --*/\r |
| 1088 | {\r |
| 1089 | VGA_CLASS_DEV *VgaClassDev;\r |
| 1090 | \r |
| 1091 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r |
| 1092 | if (Visible) {\r |
| 1093 | switch (This->Mode->Mode) {\r |
| 1094 | case 1:\r |
| 1095 | WriteCrtc (VgaClassDev, CRTC_CURSOR_START, 0x06);\r |
| 1096 | WriteCrtc (VgaClassDev, CRTC_CURSOR_END, 0x07);\r |
| 1097 | break;\r |
| 1098 | \r |
| 1099 | default:\r |
| 1100 | WriteCrtc (VgaClassDev, CRTC_CURSOR_START, 0x0e);\r |
| 1101 | WriteCrtc (VgaClassDev, CRTC_CURSOR_END, 0x0f);\r |
| 1102 | break;\r |
| 1103 | }\r |
| 1104 | } else {\r |
| 1105 | WriteCrtc (VgaClassDev, CRTC_CURSOR_START, 0x20);\r |
| 1106 | }\r |
| 1107 | \r |
| 1108 | This->Mode->CursorVisible = Visible;\r |
| 1109 | return EFI_SUCCESS;\r |
| 1110 | }\r |
| 1111 | \r |
| 1112 | EFI_STATUS\r |
| 1113 | EFIAPI\r |
| 1114 | VgaClassQueryMode (\r |
| 1115 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 1116 | IN UINTN ModeNumber,\r |
| 1117 | OUT UINTN *Columns,\r |
| 1118 | OUT UINTN *Rows\r |
| 1119 | )\r |
| 1120 | /*++\r |
| 1121 | \r |
| 1122 | Routine Description:\r |
| 1123 | \r |
| 1124 | GC_TODO: Add function description\r |
| 1125 | \r |
| 1126 | Arguments:\r |
| 1127 | \r |
| 1128 | This - GC_TODO: add argument description\r |
| 1129 | ModeNumber - GC_TODO: add argument description\r |
| 1130 | Columns - GC_TODO: add argument description\r |
| 1131 | Rows - GC_TODO: add argument description\r |
| 1132 | \r |
| 1133 | Returns:\r |
| 1134 | \r |
| 1135 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r |
| 1136 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r |
| 1137 | EFI_SUCCESS - GC_TODO: Add description for return value\r |
| 1138 | \r |
| 1139 | --*/\r |
| 1140 | {\r |
| 1141 | if ((INT32) ModeNumber >= This->Mode->MaxMode) {\r |
| 1142 | *Columns = 0;\r |
| 1143 | *Rows = 0;\r |
| 1144 | return EFI_UNSUPPORTED;\r |
| 1145 | }\r |
| 1146 | \r |
| 1147 | switch (ModeNumber) {\r |
| 1148 | case 0:\r |
| 1149 | *Columns = 80;\r |
| 1150 | *Rows = 25;\r |
| 1151 | break;\r |
| 1152 | \r |
| 1153 | case 1:\r |
| 1154 | *Columns = 80;\r |
| 1155 | *Rows = 50;\r |
| 1156 | break;\r |
| 1157 | \r |
| 1158 | default:\r |
| 1159 | *Columns = 0;\r |
| 1160 | *Rows = 0;\r |
| 1161 | return EFI_UNSUPPORTED;\r |
| 1162 | }\r |
| 1163 | \r |
| 1164 | return EFI_SUCCESS;\r |
| 1165 | }\r |
| 1166 | \r |
| 1167 | EFI_STATUS\r |
| 1168 | EFIAPI\r |
| 1169 | VgaClassSetMode (\r |
| 1170 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r |
| 1171 | IN UINTN ModeNumber\r |
| 1172 | )\r |
| 1173 | /*++\r |
| 1174 | \r |
| 1175 | Routine Description:\r |
| 1176 | \r |
| 1177 | GC_TODO: Add function description\r |
| 1178 | \r |
| 1179 | Arguments:\r |
| 1180 | \r |
| 1181 | This - GC_TODO: add argument description\r |
| 1182 | ModeNumber - GC_TODO: add argument description\r |
| 1183 | \r |
| 1184 | Returns:\r |
| 1185 | \r |
| 1186 | EFI_UNSUPPORTED - GC_TODO: Add description for return value\r |
| 1187 | \r |
| 1188 | --*/\r |
| 1189 | {\r |
| 1190 | EFI_STATUS Status;\r |
| 1191 | VGA_CLASS_DEV *VgaClassDev;\r |
| 1192 | \r |
| 1193 | VgaClassDev = VGA_CLASS_DEV_FROM_THIS (This);\r |
| 1194 | \r |
| 1195 | if ((INT32) ModeNumber >= This->Mode->MaxMode) {\r |
| 1196 | return EFI_UNSUPPORTED;\r |
| 1197 | }\r |
| 1198 | \r |
| 1199 | This->ClearScreen (This);\r |
| 1200 | \r |
| 1201 | This->Mode->Mode = (INT32) ModeNumber;\r |
| 1202 | \r |
| 1203 | Status = VgaClassDev->VgaMiniPort->SetMode (VgaClassDev->VgaMiniPort, ModeNumber);\r |
| 1204 | \r |
| 1205 | return Status;\r |
| 1206 | }\r |
| 1207 | //\r |
| 1208 | // Private Worker Functions\r |
| 1209 | //\r |
| 1210 | STATIC\r |
| 1211 | VOID\r |
| 1212 | SetVideoCursorPosition (\r |
| 1213 | IN VGA_CLASS_DEV *VgaClassDev,\r |
| 1214 | IN UINTN Column,\r |
| 1215 | IN UINTN Row,\r |
| 1216 | IN UINTN MaxColumn\r |
| 1217 | )\r |
| 1218 | /*++\r |
| 1219 | \r |
| 1220 | Routine Description:\r |
| 1221 | \r |
| 1222 | GC_TODO: Add function description\r |
| 1223 | \r |
| 1224 | Arguments:\r |
| 1225 | \r |
| 1226 | VgaClassDev - GC_TODO: add argument description\r |
| 1227 | Column - GC_TODO: add argument description\r |
| 1228 | Row - GC_TODO: add argument description\r |
| 1229 | MaxColumn - GC_TODO: add argument description\r |
| 1230 | \r |
| 1231 | Returns:\r |
| 1232 | \r |
| 1233 | GC_TODO: add return values\r |
| 1234 | \r |
| 1235 | --*/\r |
| 1236 | {\r |
| 1237 | Column = Column & 0xff;\r |
| 1238 | Row = Row & 0xff;\r |
| 1239 | MaxColumn = MaxColumn & 0xff;\r |
| 1240 | WriteCrtc (\r |
| 1241 | VgaClassDev,\r |
| 1242 | CRTC_CURSOR_LOCATION_HIGH,\r |
| 1243 | (UINT8) ((Row * MaxColumn + Column) >> 8)\r |
| 1244 | );\r |
| 1245 | WriteCrtc (\r |
| 1246 | VgaClassDev,\r |
| 1247 | CRTC_CURSOR_LOCATION_LOW,\r |
| 1248 | (UINT8) ((Row * MaxColumn + Column) & 0xff)\r |
| 1249 | );\r |
| 1250 | }\r |
| 1251 | \r |
| 1252 | STATIC\r |
| 1253 | VOID\r |
| 1254 | WriteCrtc (\r |
| 1255 | IN VGA_CLASS_DEV *VgaClassDev,\r |
| 1256 | IN UINT16 Address,\r |
| 1257 | IN UINT8 Data\r |
| 1258 | )\r |
| 1259 | /*++\r |
| 1260 | \r |
| 1261 | Routine Description:\r |
| 1262 | \r |
| 1263 | GC_TODO: Add function description\r |
| 1264 | \r |
| 1265 | Arguments:\r |
| 1266 | \r |
| 1267 | VgaClassDev - GC_TODO: add argument description\r |
| 1268 | Address - GC_TODO: add argument description\r |
| 1269 | Data - GC_TODO: add argument description\r |
| 1270 | \r |
| 1271 | Returns:\r |
| 1272 | \r |
| 1273 | GC_TODO: add return values\r |
| 1274 | \r |
| 1275 | --*/\r |
| 1276 | {\r |
| 1277 | VgaClassDev->PciIo->Io.Write (\r |
| 1278 | VgaClassDev->PciIo,\r |
| 1279 | EfiPciIoWidthUint8,\r |
| 1280 | VgaClassDev->VgaMiniPort->CrtcAddressRegisterBar,\r |
| 1281 | VgaClassDev->VgaMiniPort->CrtcAddressRegisterOffset,\r |
| 1282 | 1,\r |
| 1283 | &Address\r |
| 1284 | );\r |
| 1285 | \r |
| 1286 | VgaClassDev->PciIo->Io.Write (\r |
| 1287 | VgaClassDev->PciIo,\r |
| 1288 | EfiPciIoWidthUint8,\r |
| 1289 | VgaClassDev->VgaMiniPort->CrtcDataRegisterBar,\r |
| 1290 | VgaClassDev->VgaMiniPort->CrtcDataRegisterOffset,\r |
| 1291 | 1,\r |
| 1292 | &Data\r |
| 1293 | );\r |
| 1294 | }\r |
| 1295 | \r |
| 1296 | STATIC\r |
| 1297 | BOOLEAN\r |
| 1298 | LibIsValidTextGraphics (\r |
| 1299 | IN CHAR16 Graphic,\r |
| 1300 | OUT CHAR8 *PcAnsi, OPTIONAL\r |
| 1301 | OUT CHAR8 *Ascii OPTIONAL\r |
| 1302 | )\r |
| 1303 | /*++\r |
| 1304 | \r |
| 1305 | Routine Description:\r |
| 1306 | \r |
| 1307 | Detects if a Unicode char is for Box Drawing text graphics.\r |
| 1308 | \r |
| 1309 | Arguments:\r |
| 1310 | \r |
| 1311 | Grphic - Unicode char to test.\r |
| 1312 | \r |
| 1313 | PcAnsi - Optional pointer to return PCANSI equivalent of Graphic.\r |
| 1314 | \r |
| 1315 | Asci - Optional pointer to return Ascii equivalent of Graphic.\r |
| 1316 | \r |
| 1317 | Returns:\r |
| 1318 | \r |
| 1319 | TRUE if Gpaphic is a supported Unicode Box Drawing character.\r |
| 1320 | \r |
| 1321 | --*/\r |
| 1322 | // GC_TODO: Graphic - add argument and description to function comment\r |
| 1323 | {\r |
| 1324 | UNICODE_TO_CHAR *Table;\r |
| 1325 | \r |
| 1326 | if ((((Graphic & 0xff00) != 0x2500) && ((Graphic & 0xff00) != 0x2100))) {\r |
| 1327 | //\r |
| 1328 | // Unicode drawing code charts are all in the 0x25xx range,\r |
| 1329 | // arrows are 0x21xx\r |
| 1330 | //\r |
| 1331 | return FALSE;\r |
| 1332 | }\r |
| 1333 | \r |
| 1334 | for (Table = UnicodeToPcAnsiOrAscii; Table->Unicode != 0x0000; Table++) {\r |
| 1335 | if (Graphic == Table->Unicode) {\r |
| 1336 | if (PcAnsi) {\r |
| 1337 | *PcAnsi = Table->PcAnsi;\r |
| 1338 | }\r |
| 1339 | \r |
| 1340 | if (Ascii) {\r |
| 1341 | *Ascii = Table->Ascii;\r |
| 1342 | }\r |
| 1343 | \r |
| 1344 | return TRUE;\r |
| 1345 | }\r |
| 1346 | }\r |
| 1347 | \r |
| 1348 | return FALSE;\r |
| 1349 | }\r |
| 1350 | \r |
| 1351 | STATIC\r |
| 1352 | BOOLEAN\r |
| 1353 | IsValidAscii (\r |
| 1354 | IN CHAR16 Ascii\r |
| 1355 | )\r |
| 1356 | /*++\r |
| 1357 | \r |
| 1358 | Routine Description:\r |
| 1359 | \r |
| 1360 | GC_TODO: Add function description\r |
| 1361 | \r |
| 1362 | Arguments:\r |
| 1363 | \r |
| 1364 | Ascii - GC_TODO: add argument description\r |
| 1365 | \r |
| 1366 | Returns:\r |
| 1367 | \r |
| 1368 | GC_TODO: add return values\r |
| 1369 | \r |
| 1370 | --*/\r |
| 1371 | {\r |
| 1372 | if ((Ascii >= 0x20) && (Ascii <= 0x7f)) {\r |
| 1373 | return TRUE;\r |
| 1374 | }\r |
| 1375 | \r |
| 1376 | return FALSE;\r |
| 1377 | }\r |
| 1378 | \r |
| 1379 | STATIC\r |
| 1380 | BOOLEAN\r |
| 1381 | IsValidEfiCntlChar (\r |
| 1382 | IN CHAR16 c\r |
| 1383 | )\r |
| 1384 | /*++\r |
| 1385 | \r |
| 1386 | Routine Description:\r |
| 1387 | \r |
| 1388 | GC_TODO: Add function description\r |
| 1389 | \r |
| 1390 | Arguments:\r |
| 1391 | \r |
| 1392 | c - GC_TODO: add argument description\r |
| 1393 | \r |
| 1394 | Returns:\r |
| 1395 | \r |
| 1396 | GC_TODO: add return values\r |
| 1397 | \r |
| 1398 | --*/\r |
| 1399 | {\r |
| 1400 | if (c == CHAR_NULL || c == CHAR_BACKSPACE || c == CHAR_LINEFEED || c == CHAR_CARRIAGE_RETURN) {\r |
| 1401 | return TRUE;\r |
| 1402 | }\r |
| 1403 | \r |
| 1404 | return FALSE;\r |
| 1405 | }\r |
projects / mirror_edk2.git / blame