| 1 | |
| 2 | /* |
| 3 | * XFree86 vbe module |
| 4 | * Copyright 2000 Egbert Eich |
| 5 | * |
| 6 | * The mode query/save/set/restore functions from the vesa driver |
| 7 | * have been moved here. |
| 8 | * Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com) |
| 9 | * Authors: Paulo César Pereira de Andrade <pcpa@conectiva.com.br> |
| 10 | */ |
| 11 | |
| 12 | #ifdef HAVE_XORG_CONFIG_H |
| 13 | #include <xorg-config.h> |
| 14 | #endif |
| 15 | |
| 16 | #include <string.h> |
| 17 | |
| 18 | #include "xf86.h" |
| 19 | #include "xf86Modes.h" |
| 20 | #include "vbe.h" |
| 21 | #include <X11/extensions/dpmsconst.h> |
| 22 | |
| 23 | #define VERSION(x) VBE_VERSION_MAJOR(x),VBE_VERSION_MINOR(x) |
| 24 | |
| 25 | #if X_BYTE_ORDER == X_LITTLE_ENDIAN |
| 26 | #define B_O16(x) (x) |
| 27 | #define B_O32(x) (x) |
| 28 | #else |
| 29 | #define B_O16(x) ((((x) & 0xff) << 8) | (((x) & 0xff) >> 8)) |
| 30 | #define B_O32(x) ((((x) & 0xff) << 24) | (((x) & 0xff00) << 8) \ |
| 31 | | (((x) & 0xff0000) >> 8) | (((x) & 0xff000000) >> 24)) |
| 32 | #endif |
| 33 | #define L_ADD(x) (B_O32(x) & 0xffff) + ((B_O32(x) >> 12) & 0xffff00) |
| 34 | |
| 35 | #define FARP(p) (((unsigned)(p & 0xffff0000) >> 12) | (p & 0xffff)) |
| 36 | #define R16(v) ((v) & 0xffff) |
| 37 | |
| 38 | static unsigned char *vbeReadEDID(vbeInfoPtr pVbe); |
| 39 | static Bool vbeProbeDDC(vbeInfoPtr pVbe); |
| 40 | |
| 41 | static const char vbeVersionString[] = "VBE2"; |
| 42 | |
| 43 | vbeInfoPtr |
| 44 | VBEInit(xf86Int10InfoPtr pInt, int entityIndex) |
| 45 | { |
| 46 | return VBEExtendedInit(pInt, entityIndex, 0); |
| 47 | } |
| 48 | |
| 49 | vbeInfoPtr |
| 50 | VBEExtendedInit(xf86Int10InfoPtr pInt, int entityIndex, int Flags) |
| 51 | { |
| 52 | int RealOff; |
| 53 | pointer page = NULL; |
| 54 | ScrnInfoPtr pScrn = xf86FindScreenForEntity(entityIndex); |
| 55 | vbeControllerInfoPtr vbe = NULL; |
| 56 | Bool init_int10 = FALSE; |
| 57 | vbeInfoPtr vip = NULL; |
| 58 | int screen; |
| 59 | |
| 60 | if (!pScrn) |
| 61 | return NULL; |
| 62 | screen = pScrn->scrnIndex; |
| 63 | |
| 64 | if (!pInt) { |
| 65 | if (!xf86LoadSubModule(pScrn, "int10")) |
| 66 | goto error; |
| 67 | |
| 68 | xf86DrvMsg(screen, X_INFO, "initializing int10\n"); |
| 69 | pInt = xf86ExtendedInitInt10(entityIndex, Flags); |
| 70 | if (!pInt) |
| 71 | goto error; |
| 72 | init_int10 = TRUE; |
| 73 | } |
| 74 | |
| 75 | page = xf86Int10AllocPages(pInt, 1, &RealOff); |
| 76 | if (!page) |
| 77 | goto error; |
| 78 | vbe = (vbeControllerInfoPtr) page; |
| 79 | memcpy(vbe->VbeSignature, vbeVersionString, 4); |
| 80 | |
| 81 | pInt->ax = 0x4F00; |
| 82 | pInt->es = SEG_ADDR(RealOff); |
| 83 | pInt->di = SEG_OFF(RealOff); |
| 84 | pInt->num = 0x10; |
| 85 | |
| 86 | xf86ExecX86int10(pInt); |
| 87 | |
| 88 | if ((pInt->ax & 0xff) != 0x4f) { |
| 89 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA BIOS not detected\n"); |
| 90 | goto error; |
| 91 | } |
| 92 | |
| 93 | switch (pInt->ax & 0xff00) { |
| 94 | case 0: |
| 95 | xf86DrvMsg(screen, X_INFO, "VESA BIOS detected\n"); |
| 96 | break; |
| 97 | case 0x100: |
| 98 | xf86DrvMsg(screen, X_INFO, "VESA BIOS function failed\n"); |
| 99 | goto error; |
| 100 | case 0x200: |
| 101 | xf86DrvMsg(screen, X_INFO, "VESA BIOS not supported\n"); |
| 102 | goto error; |
| 103 | case 0x300: |
| 104 | xf86DrvMsg(screen, X_INFO, "VESA BIOS not supported in current mode\n"); |
| 105 | goto error; |
| 106 | default: |
| 107 | xf86DrvMsg(screen, X_INFO, "Invalid\n"); |
| 108 | goto error; |
| 109 | } |
| 110 | |
| 111 | xf86DrvMsgVerb(screen, X_INFO, 4, |
| 112 | "VbeVersion is %d, OemStringPtr is 0x%08lx,\n" |
| 113 | "\tOemVendorNamePtr is 0x%08lx, OemProductNamePtr is 0x%08lx,\n" |
| 114 | "\tOemProductRevPtr is 0x%08lx\n", |
| 115 | vbe->VbeVersion, (unsigned long) vbe->OemStringPtr, |
| 116 | (unsigned long) vbe->OemVendorNamePtr, |
| 117 | (unsigned long) vbe->OemProductNamePtr, |
| 118 | (unsigned long) vbe->OemProductRevPtr); |
| 119 | |
| 120 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE Version %i.%i\n", |
| 121 | VERSION(vbe->VbeVersion)); |
| 122 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE Total Mem: %i kB\n", |
| 123 | vbe->TotalMem * 64); |
| 124 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE OEM: %s\n", |
| 125 | (CARD8 *) xf86int10Addr(pInt, L_ADD(vbe->OemStringPtr))); |
| 126 | |
| 127 | if (B_O16(vbe->VbeVersion) >= 0x200) { |
| 128 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE OEM Software Rev: %i.%i\n", |
| 129 | VERSION(vbe->OemSoftwareRev)); |
| 130 | if (vbe->OemVendorNamePtr) |
| 131 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE OEM Vendor: %s\n", |
| 132 | (CARD8 *) xf86int10Addr(pInt, |
| 133 | L_ADD(vbe-> |
| 134 | OemVendorNamePtr))); |
| 135 | if (vbe->OemProductNamePtr) |
| 136 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE OEM Product: %s\n", |
| 137 | (CARD8 *) xf86int10Addr(pInt, |
| 138 | L_ADD(vbe-> |
| 139 | OemProductNamePtr))); |
| 140 | if (vbe->OemProductRevPtr) |
| 141 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE OEM Product Rev: %s\n", |
| 142 | (CARD8 *) xf86int10Addr(pInt, |
| 143 | L_ADD(vbe-> |
| 144 | OemProductRevPtr))); |
| 145 | } |
| 146 | vip = (vbeInfoPtr) xnfalloc(sizeof(vbeInfoRec)); |
| 147 | vip->version = B_O16(vbe->VbeVersion); |
| 148 | vip->pInt10 = pInt; |
| 149 | vip->ddc = DDC_UNCHECKED; |
| 150 | vip->memory = page; |
| 151 | vip->real_mode_base = RealOff; |
| 152 | vip->num_pages = 1; |
| 153 | vip->init_int10 = init_int10; |
| 154 | |
| 155 | return vip; |
| 156 | |
| 157 | error: |
| 158 | if (page) |
| 159 | xf86Int10FreePages(pInt, page, 1); |
| 160 | if (init_int10) |
| 161 | xf86FreeInt10(pInt); |
| 162 | return NULL; |
| 163 | } |
| 164 | |
| 165 | void |
| 166 | vbeFree(vbeInfoPtr pVbe) |
| 167 | { |
| 168 | if (!pVbe) |
| 169 | return; |
| 170 | |
| 171 | xf86Int10FreePages(pVbe->pInt10, pVbe->memory, pVbe->num_pages); |
| 172 | /* If we have initalized int10 we ought to free it, too */ |
| 173 | if (pVbe->init_int10) |
| 174 | xf86FreeInt10(pVbe->pInt10); |
| 175 | free(pVbe); |
| 176 | return; |
| 177 | } |
| 178 | |
| 179 | static Bool |
| 180 | vbeProbeDDC(vbeInfoPtr pVbe) |
| 181 | { |
| 182 | const char *ddc_level; |
| 183 | int screen = pVbe->pInt10->pScrn->scrnIndex; |
| 184 | |
| 185 | if (pVbe->ddc == DDC_NONE) |
| 186 | return FALSE; |
| 187 | if (pVbe->ddc != DDC_UNCHECKED) |
| 188 | return TRUE; |
| 189 | |
| 190 | pVbe->pInt10->ax = 0x4F15; |
| 191 | pVbe->pInt10->bx = 0; |
| 192 | pVbe->pInt10->cx = 0; |
| 193 | pVbe->pInt10->es = 0; |
| 194 | pVbe->pInt10->di = 0; |
| 195 | pVbe->pInt10->num = 0x10; |
| 196 | |
| 197 | xf86ExecX86int10(pVbe->pInt10); |
| 198 | |
| 199 | if ((pVbe->pInt10->ax & 0xff) != 0x4f) { |
| 200 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE DDC not supported\n"); |
| 201 | pVbe->ddc = DDC_NONE; |
| 202 | return FALSE; |
| 203 | } |
| 204 | |
| 205 | switch ((pVbe->pInt10->ax >> 8) & 0xff) { |
| 206 | case 0: |
| 207 | xf86DrvMsg(screen, X_INFO, "VESA VBE DDC supported\n"); |
| 208 | switch (pVbe->pInt10->bx & 0x3) { |
| 209 | case 0: |
| 210 | ddc_level = " none"; |
| 211 | pVbe->ddc = DDC_NONE; |
| 212 | break; |
| 213 | case 1: |
| 214 | ddc_level = " 1"; |
| 215 | pVbe->ddc = DDC_1; |
| 216 | break; |
| 217 | case 2: |
| 218 | ddc_level = " 2"; |
| 219 | pVbe->ddc = DDC_2; |
| 220 | break; |
| 221 | case 3: |
| 222 | ddc_level = " 1 + 2"; |
| 223 | pVbe->ddc = DDC_1_2; |
| 224 | break; |
| 225 | default: |
| 226 | ddc_level = ""; |
| 227 | pVbe->ddc = DDC_NONE; |
| 228 | break; |
| 229 | } |
| 230 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE DDC Level%s\n", ddc_level); |
| 231 | if (pVbe->pInt10->bx & 0x4) { |
| 232 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE DDC Screen blanked" |
| 233 | "for data transfer\n"); |
| 234 | pVbe->ddc_blank = TRUE; |
| 235 | } |
| 236 | else |
| 237 | pVbe->ddc_blank = FALSE; |
| 238 | |
| 239 | xf86DrvMsgVerb(screen, X_INFO, 3, |
| 240 | "VESA VBE DDC transfer in appr. %x sec.\n", |
| 241 | (pVbe->pInt10->bx >> 8) & 0xff); |
| 242 | } |
| 243 | |
| 244 | return TRUE; |
| 245 | } |
| 246 | |
| 247 | typedef enum { |
| 248 | VBEOPT_NOVBE, |
| 249 | VBEOPT_NODDC |
| 250 | } VBEOpts; |
| 251 | |
| 252 | static const OptionInfoRec VBEOptions[] = { |
| 253 | {VBEOPT_NOVBE, "NoVBE", OPTV_BOOLEAN, {0}, FALSE}, |
| 254 | {VBEOPT_NODDC, "NoDDC", OPTV_BOOLEAN, {0}, FALSE}, |
| 255 | {-1, NULL, OPTV_NONE, {0}, FALSE}, |
| 256 | }; |
| 257 | |
| 258 | static unsigned char * |
| 259 | vbeReadEDID(vbeInfoPtr pVbe) |
| 260 | { |
| 261 | int RealOff = pVbe->real_mode_base; |
| 262 | pointer page = pVbe->memory; |
| 263 | unsigned char *tmp = NULL; |
| 264 | Bool novbe = FALSE; |
| 265 | Bool noddc = FALSE; |
| 266 | ScrnInfoPtr pScrn = pVbe->pInt10->pScrn; |
| 267 | int screen = pScrn->scrnIndex; |
| 268 | OptionInfoPtr options; |
| 269 | |
| 270 | if (!page) |
| 271 | return NULL; |
| 272 | |
| 273 | options = xnfalloc(sizeof(VBEOptions)); |
| 274 | (void) memcpy(options, VBEOptions, sizeof(VBEOptions)); |
| 275 | xf86ProcessOptions(screen, pScrn->options, options); |
| 276 | xf86GetOptValBool(options, VBEOPT_NOVBE, &novbe); |
| 277 | xf86GetOptValBool(options, VBEOPT_NODDC, &noddc); |
| 278 | free(options); |
| 279 | if (novbe || noddc) |
| 280 | return NULL; |
| 281 | |
| 282 | if (!vbeProbeDDC(pVbe)) |
| 283 | goto error; |
| 284 | |
| 285 | memset(page, 0, sizeof(vbeInfoPtr)); |
| 286 | strcpy(page, vbeVersionString); |
| 287 | |
| 288 | pVbe->pInt10->ax = 0x4F15; |
| 289 | pVbe->pInt10->bx = 0x01; |
| 290 | pVbe->pInt10->cx = 0; |
| 291 | pVbe->pInt10->dx = 0; |
| 292 | pVbe->pInt10->es = SEG_ADDR(RealOff); |
| 293 | pVbe->pInt10->di = SEG_OFF(RealOff); |
| 294 | pVbe->pInt10->num = 0x10; |
| 295 | |
| 296 | xf86ExecX86int10(pVbe->pInt10); |
| 297 | |
| 298 | if ((pVbe->pInt10->ax & 0xff) != 0x4f) { |
| 299 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE DDC invalid\n"); |
| 300 | goto error; |
| 301 | } |
| 302 | switch (pVbe->pInt10->ax & 0xff00) { |
| 303 | case 0x0: |
| 304 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE DDC read successfully\n"); |
| 305 | tmp = (unsigned char *) xnfalloc(128); |
| 306 | memcpy(tmp, page, 128); |
| 307 | break; |
| 308 | case 0x100: |
| 309 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE DDC read failed\n"); |
| 310 | break; |
| 311 | default: |
| 312 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE DDC unkown failure %i\n", |
| 313 | pVbe->pInt10->ax & 0xff00); |
| 314 | break; |
| 315 | } |
| 316 | |
| 317 | error: |
| 318 | return tmp; |
| 319 | } |
| 320 | |
| 321 | xf86MonPtr |
| 322 | vbeDoEDID(vbeInfoPtr pVbe, pointer unused) |
| 323 | { |
| 324 | unsigned char *DDC_data = NULL; |
| 325 | |
| 326 | if (!pVbe) |
| 327 | return NULL; |
| 328 | if (pVbe->version < 0x200) |
| 329 | return NULL; |
| 330 | |
| 331 | DDC_data = vbeReadEDID(pVbe); |
| 332 | |
| 333 | if (!DDC_data) |
| 334 | return NULL; |
| 335 | |
| 336 | return xf86InterpretEDID(pVbe->pInt10->pScrn->scrnIndex, DDC_data); |
| 337 | } |
| 338 | |
| 339 | #define GET_UNALIGNED2(x) \ |
| 340 | ((*(CARD16*)(x)) | (*(((CARD16*)(x) + 1))) << 16) |
| 341 | |
| 342 | VbeInfoBlock * |
| 343 | VBEGetVBEInfo(vbeInfoPtr pVbe) |
| 344 | { |
| 345 | VbeInfoBlock *block = NULL; |
| 346 | int i, pStr, pModes; |
| 347 | char *str; |
| 348 | CARD16 major, *modes; |
| 349 | |
| 350 | memset(pVbe->memory, 0, sizeof(VbeInfoBlock)); |
| 351 | |
| 352 | /* |
| 353 | Input: |
| 354 | AH := 4Fh Super VGA support |
| 355 | AL := 00h Return Super VGA information |
| 356 | ES:DI := Pointer to buffer |
| 357 | |
| 358 | Output: |
| 359 | AX := status |
| 360 | (All other registers are preserved) |
| 361 | */ |
| 362 | |
| 363 | ((char *) pVbe->memory)[0] = 'V'; |
| 364 | ((char *) pVbe->memory)[1] = 'B'; |
| 365 | ((char *) pVbe->memory)[2] = 'E'; |
| 366 | ((char *) pVbe->memory)[3] = '2'; |
| 367 | |
| 368 | pVbe->pInt10->num = 0x10; |
| 369 | pVbe->pInt10->ax = 0x4f00; |
| 370 | pVbe->pInt10->es = SEG_ADDR(pVbe->real_mode_base); |
| 371 | pVbe->pInt10->di = SEG_OFF(pVbe->real_mode_base); |
| 372 | xf86ExecX86int10(pVbe->pInt10); |
| 373 | |
| 374 | if (R16(pVbe->pInt10->ax) != 0x4f) |
| 375 | return NULL; |
| 376 | |
| 377 | block = calloc(sizeof(VbeInfoBlock), 1); |
| 378 | block->VESASignature[0] = ((char *) pVbe->memory)[0]; |
| 379 | block->VESASignature[1] = ((char *) pVbe->memory)[1]; |
| 380 | block->VESASignature[2] = ((char *) pVbe->memory)[2]; |
| 381 | block->VESASignature[3] = ((char *) pVbe->memory)[3]; |
| 382 | |
| 383 | block->VESAVersion = *(CARD16 *) (((char *) pVbe->memory) + 4); |
| 384 | major = (unsigned) block->VESAVersion >> 8; |
| 385 | |
| 386 | pStr = GET_UNALIGNED2((((char *) pVbe->memory) + 6)); |
| 387 | str = xf86int10Addr(pVbe->pInt10, FARP(pStr)); |
| 388 | block->OEMStringPtr = strdup(str); |
| 389 | |
| 390 | block->Capabilities[0] = ((char *) pVbe->memory)[10]; |
| 391 | block->Capabilities[1] = ((char *) pVbe->memory)[11]; |
| 392 | block->Capabilities[2] = ((char *) pVbe->memory)[12]; |
| 393 | block->Capabilities[3] = ((char *) pVbe->memory)[13]; |
| 394 | |
| 395 | pModes = GET_UNALIGNED2((((char *) pVbe->memory) + 14)); |
| 396 | modes = xf86int10Addr(pVbe->pInt10, FARP(pModes)); |
| 397 | i = 0; |
| 398 | while (modes[i] != 0xffff) |
| 399 | i++; |
| 400 | block->VideoModePtr = malloc(sizeof(CARD16) * (i + 1)); |
| 401 | memcpy(block->VideoModePtr, modes, sizeof(CARD16) * i); |
| 402 | block->VideoModePtr[i] = 0xffff; |
| 403 | |
| 404 | block->TotalMemory = *(CARD16 *) (((char *) pVbe->memory) + 18); |
| 405 | |
| 406 | if (major < 2) |
| 407 | memcpy(&block->OemSoftwareRev, ((char *) pVbe->memory) + 20, 236); |
| 408 | else { |
| 409 | block->OemSoftwareRev = *(CARD16 *) (((char *) pVbe->memory) + 20); |
| 410 | pStr = GET_UNALIGNED2((((char *) pVbe->memory) + 22)); |
| 411 | str = xf86int10Addr(pVbe->pInt10, FARP(pStr)); |
| 412 | block->OemVendorNamePtr = strdup(str); |
| 413 | pStr = GET_UNALIGNED2((((char *) pVbe->memory) + 26)); |
| 414 | str = xf86int10Addr(pVbe->pInt10, FARP(pStr)); |
| 415 | block->OemProductNamePtr = strdup(str); |
| 416 | pStr = GET_UNALIGNED2((((char *) pVbe->memory) + 30)); |
| 417 | str = xf86int10Addr(pVbe->pInt10, FARP(pStr)); |
| 418 | block->OemProductRevPtr = strdup(str); |
| 419 | memcpy(&block->Reserved, ((char *) pVbe->memory) + 34, 222); |
| 420 | memcpy(&block->OemData, ((char *) pVbe->memory) + 256, 256); |
| 421 | } |
| 422 | |
| 423 | return block; |
| 424 | } |
| 425 | |
| 426 | void |
| 427 | VBEFreeVBEInfo(VbeInfoBlock * block) |
| 428 | { |
| 429 | free(block->OEMStringPtr); |
| 430 | free(block->VideoModePtr); |
| 431 | if (((unsigned) block->VESAVersion >> 8) >= 2) { |
| 432 | free(block->OemVendorNamePtr); |
| 433 | free(block->OemProductNamePtr); |
| 434 | free(block->OemProductRevPtr); |
| 435 | } |
| 436 | free(block); |
| 437 | } |
| 438 | |
| 439 | Bool |
| 440 | VBESetVBEMode(vbeInfoPtr pVbe, int mode, VbeCRTCInfoBlock * block) |
| 441 | { |
| 442 | /* |
| 443 | Input: |
| 444 | AH := 4Fh Super VGA support |
| 445 | AL := 02h Set Super VGA video mode |
| 446 | BX := Video mode |
| 447 | D0-D8 := Mode number |
| 448 | D9-D10 := Reserved (must be 0) |
| 449 | D11 := 0 Use current default refresh rate |
| 450 | := 1 Use user specified CRTC values for refresh rate |
| 451 | D12-13 Reserved for VBE/AF (must be 0) |
| 452 | D14 := 0 Use windowed frame buffer model |
| 453 | := 1 Use linear/flat frame buffer model |
| 454 | D15 := 0 Clear video memory |
| 455 | := 1 Don't clear video memory |
| 456 | ES:DI := Pointer to VbeCRTCInfoBlock structure |
| 457 | |
| 458 | Output: AX = Status |
| 459 | (All other registers are preserved) |
| 460 | */ |
| 461 | pVbe->pInt10->num = 0x10; |
| 462 | pVbe->pInt10->ax = 0x4f02; |
| 463 | pVbe->pInt10->bx = mode; |
| 464 | if (block) { |
| 465 | pVbe->pInt10->bx |= 1 << 11; |
| 466 | memcpy(pVbe->memory, block, sizeof(VbeCRTCInfoBlock)); |
| 467 | pVbe->pInt10->es = SEG_ADDR(pVbe->real_mode_base); |
| 468 | pVbe->pInt10->di = SEG_OFF(pVbe->real_mode_base); |
| 469 | } |
| 470 | else |
| 471 | pVbe->pInt10->bx &= ~(1 << 11); |
| 472 | |
| 473 | xf86ExecX86int10(pVbe->pInt10); |
| 474 | |
| 475 | return (R16(pVbe->pInt10->ax) == 0x4f); |
| 476 | } |
| 477 | |
| 478 | Bool |
| 479 | VBEGetVBEMode(vbeInfoPtr pVbe, int *mode) |
| 480 | { |
| 481 | /* |
| 482 | Input: |
| 483 | AH := 4Fh Super VGA support |
| 484 | AL := 03h Return current video mode |
| 485 | |
| 486 | Output: |
| 487 | AX := Status |
| 488 | BX := Current video mode |
| 489 | (All other registers are preserved) |
| 490 | */ |
| 491 | pVbe->pInt10->num = 0x10; |
| 492 | pVbe->pInt10->ax = 0x4f03; |
| 493 | |
| 494 | xf86ExecX86int10(pVbe->pInt10); |
| 495 | |
| 496 | if (R16(pVbe->pInt10->ax) == 0x4f) { |
| 497 | *mode = R16(pVbe->pInt10->bx); |
| 498 | |
| 499 | return TRUE; |
| 500 | } |
| 501 | |
| 502 | return FALSE; |
| 503 | } |
| 504 | |
| 505 | VbeModeInfoBlock * |
| 506 | VBEGetModeInfo(vbeInfoPtr pVbe, int mode) |
| 507 | { |
| 508 | VbeModeInfoBlock *block = NULL; |
| 509 | |
| 510 | memset(pVbe->memory, 0, sizeof(VbeModeInfoBlock)); |
| 511 | |
| 512 | /* |
| 513 | Input: |
| 514 | AH := 4Fh Super VGA support |
| 515 | AL := 01h Return Super VGA mode information |
| 516 | CX := Super VGA video mode |
| 517 | (mode number must be one of those returned by Function 0) |
| 518 | ES:DI := Pointer to buffer |
| 519 | |
| 520 | Output: |
| 521 | AX := status |
| 522 | (All other registers are preserved) |
| 523 | */ |
| 524 | pVbe->pInt10->num = 0x10; |
| 525 | pVbe->pInt10->ax = 0x4f01; |
| 526 | pVbe->pInt10->cx = mode; |
| 527 | pVbe->pInt10->es = SEG_ADDR(pVbe->real_mode_base); |
| 528 | pVbe->pInt10->di = SEG_OFF(pVbe->real_mode_base); |
| 529 | xf86ExecX86int10(pVbe->pInt10); |
| 530 | if (R16(pVbe->pInt10->ax) != 0x4f) |
| 531 | return NULL; |
| 532 | |
| 533 | block = malloc(sizeof(VbeModeInfoBlock)); |
| 534 | if (block) |
| 535 | memcpy(block, pVbe->memory, sizeof(*block)); |
| 536 | |
| 537 | return block; |
| 538 | } |
| 539 | |
| 540 | void |
| 541 | VBEFreeModeInfo(VbeModeInfoBlock * block) |
| 542 | { |
| 543 | free(block); |
| 544 | } |
| 545 | |
| 546 | Bool |
| 547 | VBESaveRestore(vbeInfoPtr pVbe, vbeSaveRestoreFunction function, |
| 548 | pointer *memory, int *size, int *real_mode_pages) |
| 549 | { |
| 550 | /* |
| 551 | Input: |
| 552 | AH := 4Fh Super VGA support |
| 553 | AL := 04h Save/restore Super VGA video state |
| 554 | DL := 00h Return save/restore state buffer size |
| 555 | CX := Requested states |
| 556 | D0 = Save/restore video hardware state |
| 557 | D1 = Save/restore video BIOS data state |
| 558 | D2 = Save/restore video DAC state |
| 559 | D3 = Save/restore Super VGA state |
| 560 | |
| 561 | Output: |
| 562 | AX = Status |
| 563 | BX = Number of 64-byte blocks to hold the state buffer |
| 564 | (All other registers are preserved) |
| 565 | |
| 566 | Input: |
| 567 | AH := 4Fh Super VGA support |
| 568 | AL := 04h Save/restore Super VGA video state |
| 569 | DL := 01h Save Super VGA video state |
| 570 | CX := Requested states (see above) |
| 571 | ES:BX := Pointer to buffer |
| 572 | |
| 573 | Output: |
| 574 | AX := Status |
| 575 | (All other registers are preserved) |
| 576 | |
| 577 | Input: |
| 578 | AH := 4Fh Super VGA support |
| 579 | AL := 04h Save/restore Super VGA video state |
| 580 | DL := 02h Restore Super VGA video state |
| 581 | CX := Requested states (see above) |
| 582 | ES:BX := Pointer to buffer |
| 583 | |
| 584 | Output: |
| 585 | AX := Status |
| 586 | (All other registers are preserved) |
| 587 | */ |
| 588 | |
| 589 | if ((pVbe->version & 0xff00) > 0x100) { |
| 590 | int screen = pVbe->pInt10->pScrn->scrnIndex; |
| 591 | |
| 592 | if (function == MODE_QUERY || (function == MODE_SAVE && !*memory)) { |
| 593 | /* Query amount of memory to save state */ |
| 594 | |
| 595 | pVbe->pInt10->num = 0x10; |
| 596 | pVbe->pInt10->ax = 0x4f04; |
| 597 | pVbe->pInt10->dx = 0; |
| 598 | pVbe->pInt10->cx = 0x000f; |
| 599 | xf86ExecX86int10(pVbe->pInt10); |
| 600 | if (R16(pVbe->pInt10->ax) != 0x4f) |
| 601 | return FALSE; |
| 602 | |
| 603 | if (function == MODE_SAVE) { |
| 604 | int npages = (R16(pVbe->pInt10->bx) * 64) / 4096 + 1; |
| 605 | |
| 606 | if ((*memory = xf86Int10AllocPages(pVbe->pInt10, npages, |
| 607 | real_mode_pages)) == NULL) { |
| 608 | xf86DrvMsg(screen, X_ERROR, |
| 609 | "Cannot allocate memory to save SVGA state.\n"); |
| 610 | return FALSE; |
| 611 | } |
| 612 | } |
| 613 | *size = pVbe->pInt10->bx * 64; |
| 614 | } |
| 615 | |
| 616 | /* Save/Restore Super VGA state */ |
| 617 | if (function != MODE_QUERY) { |
| 618 | |
| 619 | if (!*memory) |
| 620 | return FALSE; |
| 621 | pVbe->pInt10->num = 0x10; |
| 622 | pVbe->pInt10->ax = 0x4f04; |
| 623 | switch (function) { |
| 624 | case MODE_SAVE: |
| 625 | pVbe->pInt10->dx = 1; |
| 626 | break; |
| 627 | case MODE_RESTORE: |
| 628 | pVbe->pInt10->dx = 2; |
| 629 | break; |
| 630 | case MODE_QUERY: |
| 631 | return FALSE; |
| 632 | } |
| 633 | pVbe->pInt10->cx = 0x000f; |
| 634 | |
| 635 | pVbe->pInt10->es = SEG_ADDR(*real_mode_pages); |
| 636 | pVbe->pInt10->bx = SEG_OFF(*real_mode_pages); |
| 637 | xf86ExecX86int10(pVbe->pInt10); |
| 638 | return (R16(pVbe->pInt10->ax) == 0x4f); |
| 639 | |
| 640 | } |
| 641 | } |
| 642 | return TRUE; |
| 643 | } |
| 644 | |
| 645 | Bool |
| 646 | VBEBankSwitch(vbeInfoPtr pVbe, unsigned int iBank, int window) |
| 647 | { |
| 648 | /* |
| 649 | Input: |
| 650 | AH := 4Fh Super VGA support |
| 651 | AL := 05h |
| 652 | |
| 653 | Output: |
| 654 | */ |
| 655 | pVbe->pInt10->num = 0x10; |
| 656 | pVbe->pInt10->ax = 0x4f05; |
| 657 | pVbe->pInt10->bx = window; |
| 658 | pVbe->pInt10->dx = iBank; |
| 659 | xf86ExecX86int10(pVbe->pInt10); |
| 660 | |
| 661 | if (R16(pVbe->pInt10->ax) != 0x4f) |
| 662 | return FALSE; |
| 663 | |
| 664 | return TRUE; |
| 665 | } |
| 666 | |
| 667 | Bool |
| 668 | VBESetGetLogicalScanlineLength(vbeInfoPtr pVbe, vbeScanwidthCommand command, |
| 669 | int width, int *pixels, int *bytes, int *max) |
| 670 | { |
| 671 | if (command < SCANWID_SET || command > SCANWID_GET_MAX) |
| 672 | return FALSE; |
| 673 | |
| 674 | /* |
| 675 | Input: |
| 676 | AX := 4F06h VBE Set/Get Logical Scan Line Length |
| 677 | BL := 00h Set Scan Line Length in Pixels |
| 678 | := 01h Get Scan Line Length |
| 679 | := 02h Set Scan Line Length in Bytes |
| 680 | := 03h Get Maximum Scan Line Length |
| 681 | CX := If BL=00h Desired Width in Pixels |
| 682 | If BL=02h Desired Width in Bytes |
| 683 | (Ignored for Get Functions) |
| 684 | |
| 685 | Output: |
| 686 | AX := VBE Return Status |
| 687 | BX := Bytes Per Scan Line |
| 688 | CX := Actual Pixels Per Scan Line |
| 689 | (truncated to nearest complete pixel) |
| 690 | DX := Maximum Number of Scan Lines |
| 691 | */ |
| 692 | |
| 693 | pVbe->pInt10->num = 0x10; |
| 694 | pVbe->pInt10->ax = 0x4f06; |
| 695 | pVbe->pInt10->bx = command; |
| 696 | if (command == SCANWID_SET || command == SCANWID_SET_BYTES) |
| 697 | pVbe->pInt10->cx = width; |
| 698 | xf86ExecX86int10(pVbe->pInt10); |
| 699 | |
| 700 | if (R16(pVbe->pInt10->ax) != 0x4f) |
| 701 | return FALSE; |
| 702 | |
| 703 | if (command == SCANWID_GET || command == SCANWID_GET_MAX) { |
| 704 | if (pixels) |
| 705 | *pixels = R16(pVbe->pInt10->cx); |
| 706 | if (bytes) |
| 707 | *bytes = R16(pVbe->pInt10->bx); |
| 708 | if (max) |
| 709 | *max = R16(pVbe->pInt10->dx); |
| 710 | } |
| 711 | |
| 712 | return TRUE; |
| 713 | } |
| 714 | |
| 715 | Bool |
| 716 | VBESetDisplayStart(vbeInfoPtr pVbe, int x, int y, Bool wait_retrace) |
| 717 | { |
| 718 | pVbe->pInt10->num = 0x10; |
| 719 | pVbe->pInt10->ax = 0x4f07; |
| 720 | pVbe->pInt10->bx = wait_retrace ? 0x80 : 0x00; |
| 721 | pVbe->pInt10->cx = x; |
| 722 | pVbe->pInt10->dx = y; |
| 723 | xf86ExecX86int10(pVbe->pInt10); |
| 724 | |
| 725 | if (R16(pVbe->pInt10->ax) != 0x4f) |
| 726 | return FALSE; |
| 727 | |
| 728 | return TRUE; |
| 729 | } |
| 730 | |
| 731 | Bool |
| 732 | VBEGetDisplayStart(vbeInfoPtr pVbe, int *x, int *y) |
| 733 | { |
| 734 | pVbe->pInt10->num = 0x10; |
| 735 | pVbe->pInt10->ax = 0x4f07; |
| 736 | pVbe->pInt10->bx = 0x01; |
| 737 | xf86ExecX86int10(pVbe->pInt10); |
| 738 | |
| 739 | if (R16(pVbe->pInt10->ax) != 0x4f) |
| 740 | return FALSE; |
| 741 | |
| 742 | *x = pVbe->pInt10->cx; |
| 743 | *y = pVbe->pInt10->dx; |
| 744 | |
| 745 | return TRUE; |
| 746 | } |
| 747 | |
| 748 | int |
| 749 | VBESetGetDACPaletteFormat(vbeInfoPtr pVbe, int bits) |
| 750 | { |
| 751 | /* |
| 752 | Input: |
| 753 | AX := 4F08h VBE Set/Get Palette Format |
| 754 | BL := 00h Set DAC Palette Format |
| 755 | := 01h Get DAC Palette Format |
| 756 | BH := Desired bits of color per primary |
| 757 | (Set DAC Palette Format only) |
| 758 | |
| 759 | Output: |
| 760 | AX := VBE Return Status |
| 761 | BH := Current number of bits of color per primary |
| 762 | */ |
| 763 | |
| 764 | pVbe->pInt10->num = 0x10; |
| 765 | pVbe->pInt10->ax = 0x4f08; |
| 766 | if (!bits) |
| 767 | pVbe->pInt10->bx = 0x01; |
| 768 | else |
| 769 | pVbe->pInt10->bx = (bits & 0x00ff) << 8; |
| 770 | xf86ExecX86int10(pVbe->pInt10); |
| 771 | |
| 772 | if (R16(pVbe->pInt10->ax) != 0x4f) |
| 773 | return 0; |
| 774 | |
| 775 | return (bits != 0 ? bits : (pVbe->pInt10->bx >> 8) & 0x00ff); |
| 776 | } |
| 777 | |
| 778 | CARD32 * |
| 779 | VBESetGetPaletteData(vbeInfoPtr pVbe, Bool set, int first, int num, |
| 780 | CARD32 *data, Bool secondary, Bool wait_retrace) |
| 781 | { |
| 782 | /* |
| 783 | Input: |
| 784 | (16-bit) |
| 785 | AX := 4F09h VBE Load/Unload Palette Data |
| 786 | BL := 00h Set Palette Data |
| 787 | := 01h Get Palette Data |
| 788 | := 02h Set Secondary Palette Data |
| 789 | := 03h Get Secondary Palette Data |
| 790 | := 80h Set Palette Data during Vertical Retrace |
| 791 | CX := Number of palette registers to update (to a maximum of 256) |
| 792 | DX := First of the palette registers to update (start) |
| 793 | ES:DI := Table of palette values (see below for format) |
| 794 | |
| 795 | Output: |
| 796 | AX := VBE Return Status |
| 797 | |
| 798 | Input: |
| 799 | (32-bit) |
| 800 | BL := 00h Set Palette Data |
| 801 | := 80h Set Palette Data during Vertical Retrace |
| 802 | CX := Number of palette registers to update (to a maximum of 256) |
| 803 | DX := First of the palette registers to update (start) |
| 804 | ES:EDI := Table of palette values (see below for format) |
| 805 | DS := Selector for memory mapped registers |
| 806 | */ |
| 807 | |
| 808 | pVbe->pInt10->num = 0x10; |
| 809 | pVbe->pInt10->ax = 0x4f09; |
| 810 | if (!secondary) |
| 811 | pVbe->pInt10->bx = set && wait_retrace ? 0x80 : set ? 0 : 1; |
| 812 | else |
| 813 | pVbe->pInt10->bx = set ? 2 : 3; |
| 814 | pVbe->pInt10->cx = num; |
| 815 | pVbe->pInt10->dx = first; |
| 816 | pVbe->pInt10->es = SEG_ADDR(pVbe->real_mode_base); |
| 817 | pVbe->pInt10->di = SEG_OFF(pVbe->real_mode_base); |
| 818 | if (set) |
| 819 | memcpy(pVbe->memory, data, num * sizeof(CARD32)); |
| 820 | xf86ExecX86int10(pVbe->pInt10); |
| 821 | |
| 822 | if (R16(pVbe->pInt10->ax) != 0x4f) |
| 823 | return NULL; |
| 824 | |
| 825 | if (set) |
| 826 | return data; |
| 827 | |
| 828 | data = malloc(num * sizeof(CARD32)); |
| 829 | memcpy(data, pVbe->memory, num * sizeof(CARD32)); |
| 830 | |
| 831 | return data; |
| 832 | } |
| 833 | |
| 834 | VBEpmi * |
| 835 | VBEGetVBEpmi(vbeInfoPtr pVbe) |
| 836 | { |
| 837 | VBEpmi *pmi; |
| 838 | |
| 839 | /* |
| 840 | Input: |
| 841 | AH := 4Fh Super VGA support |
| 842 | AL := 0Ah Protected Mode Interface |
| 843 | BL := 00h Return Protected Mode Table |
| 844 | |
| 845 | Output: |
| 846 | AX := Status |
| 847 | ES := Real Mode Segment of Table |
| 848 | DI := Offset of Table |
| 849 | CX := Lenght of Table including protected mode code in bytes (for copying purposes) |
| 850 | (All other registers are preserved) |
| 851 | */ |
| 852 | |
| 853 | pVbe->pInt10->num = 0x10; |
| 854 | pVbe->pInt10->ax = 0x4f0a; |
| 855 | pVbe->pInt10->bx = 0; |
| 856 | pVbe->pInt10->di = 0; |
| 857 | xf86ExecX86int10(pVbe->pInt10); |
| 858 | |
| 859 | if (R16(pVbe->pInt10->ax) != 0x4f) |
| 860 | return NULL; |
| 861 | |
| 862 | pmi = malloc(sizeof(VBEpmi)); |
| 863 | pmi->seg_tbl = R16(pVbe->pInt10->es); |
| 864 | pmi->tbl_off = R16(pVbe->pInt10->di); |
| 865 | pmi->tbl_len = R16(pVbe->pInt10->cx); |
| 866 | |
| 867 | return pmi; |
| 868 | } |
| 869 | |
| 870 | #if 0 |
| 871 | vbeModeInfoPtr |
| 872 | VBEBuildVbeModeList(vbeInfoPtr pVbe, VbeInfoBlock * vbe) |
| 873 | { |
| 874 | vbeModeInfoPtr ModeList = NULL; |
| 875 | |
| 876 | int i = 0; |
| 877 | |
| 878 | while (vbe->VideoModePtr[i] != 0xffff) { |
| 879 | vbeModeInfoPtr m; |
| 880 | VbeModeInfoBlock *mode; |
| 881 | int id = vbe->VideoModePtr[i++]; |
| 882 | int bpp; |
| 883 | |
| 884 | if ((mode = VBEGetModeInfo(pVbe, id)) == NULL) |
| 885 | continue; |
| 886 | |
| 887 | bpp = mode->BitsPerPixel; |
| 888 | |
| 889 | m = xnfcalloc(sizeof(vbeModeInfoRec), 1); |
| 890 | m->width = mode->XResolution; |
| 891 | m->height = mode->YResolution; |
| 892 | m->bpp = bpp; |
| 893 | m->n = id; |
| 894 | m->next = ModeList; |
| 895 | |
| 896 | xf86DrvMsgVerb(pVbe->pInt10->pScrn->scrnIndex, X_PROBED, 3, |
| 897 | "BIOS reported VESA mode 0x%x: x:%i y:%i bpp:%i\n", |
| 898 | m->n, m->width, m->height, m->bpp); |
| 899 | |
| 900 | ModeList = m; |
| 901 | |
| 902 | VBEFreeModeInfo(mode); |
| 903 | } |
| 904 | return ModeList; |
| 905 | } |
| 906 | |
| 907 | unsigned short |
| 908 | VBECalcVbeModeIndex(vbeModeInfoPtr m, DisplayModePtr mode, int bpp) |
| 909 | { |
| 910 | while (m) { |
| 911 | if (bpp == m->bpp |
| 912 | && mode->HDisplay == m->width && mode->VDisplay == m->height) |
| 913 | return m->n; |
| 914 | m = m->next; |
| 915 | } |
| 916 | return 0; |
| 917 | } |
| 918 | #endif |
| 919 | |
| 920 | void |
| 921 | VBEVesaSaveRestore(vbeInfoPtr pVbe, vbeSaveRestorePtr vbe_sr, |
| 922 | vbeSaveRestoreFunction function) |
| 923 | { |
| 924 | Bool SaveSucc = FALSE; |
| 925 | |
| 926 | if (VBE_VERSION_MAJOR(pVbe->version) > 1 |
| 927 | && (function == MODE_SAVE || vbe_sr->pstate)) { |
| 928 | if (function == MODE_RESTORE) |
| 929 | memcpy(vbe_sr->state, vbe_sr->pstate, vbe_sr->stateSize); |
| 930 | ErrorF("VBESaveRestore\n"); |
| 931 | if ((VBESaveRestore(pVbe, function, |
| 932 | (pointer) &vbe_sr->state, |
| 933 | &vbe_sr->stateSize, &vbe_sr->statePage))) { |
| 934 | if (function == MODE_SAVE) { |
| 935 | SaveSucc = TRUE; |
| 936 | vbe_sr->stateMode = -1; /* invalidate */ |
| 937 | /* don't rely on the memory not being touched */ |
| 938 | if (vbe_sr->pstate == NULL) |
| 939 | vbe_sr->pstate = malloc(vbe_sr->stateSize); |
| 940 | memcpy(vbe_sr->pstate, vbe_sr->state, vbe_sr->stateSize); |
| 941 | } |
| 942 | ErrorF("VBESaveRestore done with success\n"); |
| 943 | return; |
| 944 | } |
| 945 | ErrorF("VBESaveRestore done\n"); |
| 946 | } |
| 947 | |
| 948 | if (function == MODE_SAVE && !SaveSucc) |
| 949 | (void) VBEGetVBEMode(pVbe, &vbe_sr->stateMode); |
| 950 | |
| 951 | if (function == MODE_RESTORE && vbe_sr->stateMode != -1) |
| 952 | VBESetVBEMode(pVbe, vbe_sr->stateMode, NULL); |
| 953 | |
| 954 | } |
| 955 | |
| 956 | int |
| 957 | VBEGetPixelClock(vbeInfoPtr pVbe, int mode, int clock) |
| 958 | { |
| 959 | /* |
| 960 | Input: |
| 961 | AX := 4F0Bh VBE Get Pixel Clock |
| 962 | BL := 00h Get Pixel Clock |
| 963 | ECX := pixel clock in units of Hz |
| 964 | DX := mode number |
| 965 | |
| 966 | Output: |
| 967 | AX := VBE Return Status |
| 968 | ECX := Closest pixel clock |
| 969 | */ |
| 970 | |
| 971 | pVbe->pInt10->num = 0x10; |
| 972 | pVbe->pInt10->ax = 0x4f0b; |
| 973 | pVbe->pInt10->bx = 0x00; |
| 974 | pVbe->pInt10->cx = clock; |
| 975 | pVbe->pInt10->dx = mode; |
| 976 | xf86ExecX86int10(pVbe->pInt10); |
| 977 | |
| 978 | if (R16(pVbe->pInt10->ax) != 0x4f) |
| 979 | return 0; |
| 980 | |
| 981 | return pVbe->pInt10->cx; |
| 982 | } |
| 983 | |
| 984 | Bool |
| 985 | VBEDPMSSet(vbeInfoPtr pVbe, int mode) |
| 986 | { |
| 987 | /* |
| 988 | Input: |
| 989 | AX := 4F10h DPMS |
| 990 | BL := 01h Set Display Power State |
| 991 | BH := requested power state |
| 992 | |
| 993 | Output: |
| 994 | AX := VBE Return Status |
| 995 | */ |
| 996 | |
| 997 | pVbe->pInt10->num = 0x10; |
| 998 | pVbe->pInt10->ax = 0x4f10; |
| 999 | pVbe->pInt10->bx = 0x01; |
| 1000 | switch (mode) { |
| 1001 | case DPMSModeOn: |
| 1002 | break; |
| 1003 | case DPMSModeStandby: |
| 1004 | pVbe->pInt10->bx |= 0x100; |
| 1005 | break; |
| 1006 | case DPMSModeSuspend: |
| 1007 | pVbe->pInt10->bx |= 0x200; |
| 1008 | break; |
| 1009 | case DPMSModeOff: |
| 1010 | pVbe->pInt10->bx |= 0x400; |
| 1011 | break; |
| 1012 | } |
| 1013 | xf86ExecX86int10(pVbe->pInt10); |
| 1014 | return (R16(pVbe->pInt10->ax) == 0x4f); |
| 1015 | } |
| 1016 | |
| 1017 | void |
| 1018 | VBEInterpretPanelID(ScrnInfoPtr pScrn, struct vbePanelID *data) |
| 1019 | { |
| 1020 | DisplayModePtr mode; |
| 1021 | const float PANEL_HZ = 60.0; |
| 1022 | |
| 1023 | if (!data) |
| 1024 | return; |
| 1025 | |
| 1026 | xf86DrvMsg(pScrn->scrnIndex, X_INFO, "PanelID returned panel resolution %dx%d\n", |
| 1027 | data->hsize, data->vsize); |
| 1028 | |
| 1029 | if (pScrn->monitor->nHsync || pScrn->monitor->nVrefresh) |
| 1030 | return; |
| 1031 | |
| 1032 | if (data->hsize < 320 || data->vsize < 240) { |
| 1033 | xf86DrvMsg(pScrn->scrnIndex, X_INFO, "...which I refuse to believe\n"); |
| 1034 | return; |
| 1035 | } |
| 1036 | |
| 1037 | mode = xf86CVTMode(data->hsize, data->vsize, PANEL_HZ, 1, 0); |
| 1038 | |
| 1039 | pScrn->monitor->nHsync = 1; |
| 1040 | pScrn->monitor->hsync[0].lo = 29.37; |
| 1041 | pScrn->monitor->hsync[0].hi = (float) mode->Clock / (float) mode->HTotal; |
| 1042 | pScrn->monitor->nVrefresh = 1; |
| 1043 | pScrn->monitor->vrefresh[0].lo = 56.0; |
| 1044 | pScrn->monitor->vrefresh[0].hi = |
| 1045 | (float) mode->Clock * 1000.0 / (float) mode->HTotal / |
| 1046 | (float) mode->VTotal; |
| 1047 | |
| 1048 | if (pScrn->monitor->vrefresh[0].hi < 59.47) |
| 1049 | pScrn->monitor->vrefresh[0].hi = 59.47; |
| 1050 | |
| 1051 | free(mode); |
| 1052 | } |
| 1053 | |
| 1054 | struct vbePanelID * |
| 1055 | VBEReadPanelID(vbeInfoPtr pVbe) |
| 1056 | { |
| 1057 | int RealOff = pVbe->real_mode_base; |
| 1058 | pointer page = pVbe->memory; |
| 1059 | void *tmp = NULL; |
| 1060 | int screen = pVbe->pInt10->pScrn->scrnIndex; |
| 1061 | |
| 1062 | pVbe->pInt10->ax = 0x4F11; |
| 1063 | pVbe->pInt10->bx = 0x01; |
| 1064 | pVbe->pInt10->cx = 0; |
| 1065 | pVbe->pInt10->dx = 0; |
| 1066 | pVbe->pInt10->es = SEG_ADDR(RealOff); |
| 1067 | pVbe->pInt10->di = SEG_OFF(RealOff); |
| 1068 | pVbe->pInt10->num = 0x10; |
| 1069 | |
| 1070 | xf86ExecX86int10(pVbe->pInt10); |
| 1071 | |
| 1072 | if ((pVbe->pInt10->ax & 0xff) != 0x4f) { |
| 1073 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE PanelID invalid\n"); |
| 1074 | goto error; |
| 1075 | } |
| 1076 | |
| 1077 | switch (pVbe->pInt10->ax & 0xff00) { |
| 1078 | case 0x0: |
| 1079 | xf86DrvMsgVerb(screen, X_INFO, 3, |
| 1080 | "VESA VBE PanelID read successfully\n"); |
| 1081 | tmp = xnfalloc(32); |
| 1082 | memcpy(tmp, page, 32); |
| 1083 | break; |
| 1084 | case 0x100: |
| 1085 | xf86DrvMsgVerb(screen, X_INFO, 3, "VESA VBE PanelID read failed\n"); |
| 1086 | break; |
| 1087 | default: |
| 1088 | xf86DrvMsgVerb(screen, X_INFO, 3, |
| 1089 | "VESA VBE PanelID unknown failure %i\n", |
| 1090 | pVbe->pInt10->ax & 0xff00); |
| 1091 | break; |
| 1092 | } |
| 1093 | |
| 1094 | error: |
| 1095 | return tmp; |
| 1096 | } |