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Diffstat (limited to 'xorg-server/hw/xfree86/vbe/vbe.c')
-rw-r--r--xorg-server/hw/xfree86/vbe/vbe.c2178
1 files changed, 1089 insertions, 1089 deletions
diff --git a/xorg-server/hw/xfree86/vbe/vbe.c b/xorg-server/hw/xfree86/vbe/vbe.c
index 5120b3199..04132d956 100644
--- a/xorg-server/hw/xfree86/vbe/vbe.c
+++ b/xorg-server/hw/xfree86/vbe/vbe.c
@@ -1,1089 +1,1089 @@
-
-/*
- * XFree86 vbe module
- * Copyright 2000 Egbert Eich
- *
- * The mode query/save/set/restore functions from the vesa driver
- * have been moved here.
- * Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com)
- * Authors: Paulo César Pereira de Andrade <pcpa@conectiva.com.br>
- */
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <string.h>
-
-#include "xf86.h"
-#include "vbe.h"
-#include <X11/extensions/dpmsconst.h>
-
-#define VERSION(x) VBE_VERSION_MAJOR(x),VBE_VERSION_MINOR(x)
-
-#if X_BYTE_ORDER == X_LITTLE_ENDIAN
-#define B_O16(x) (x)
-#define B_O32(x) (x)
-#else
-#define B_O16(x) ((((x) & 0xff) << 8) | (((x) & 0xff) >> 8))
-#define B_O32(x) ((((x) & 0xff) << 24) | (((x) & 0xff00) << 8) \
- | (((x) & 0xff0000) >> 8) | (((x) & 0xff000000) >> 24))
-#endif
-#define L_ADD(x) (B_O32(x) & 0xffff) + ((B_O32(x) >> 12) & 0xffff00)
-
-#define FARP(p) (((unsigned)(p & 0xffff0000) >> 12) | (p & 0xffff))
-#define R16(v) ((v) & 0xffff)
-
-static unsigned char * vbeReadEDID(vbeInfoPtr pVbe);
-static Bool vbeProbeDDC(vbeInfoPtr pVbe);
-
-static const char vbeVersionString[] = "VBE2";
-
-vbeInfoPtr
-VBEInit(xf86Int10InfoPtr pInt, int entityIndex)
-{
- return VBEExtendedInit(pInt, entityIndex, 0);
-}
-
-vbeInfoPtr
-VBEExtendedInit(xf86Int10InfoPtr pInt, int entityIndex, int Flags)
-{
- int RealOff;
- pointer page = NULL;
- ScrnInfoPtr pScrn = xf86FindScreenForEntity(entityIndex);
- vbeControllerInfoPtr vbe = NULL;
- Bool init_int10 = FALSE;
- vbeInfoPtr vip = NULL;
- int screen;
-
- if (!pScrn) return NULL;
- screen = pScrn->scrnIndex;
-
- if (!pInt) {
- if (!xf86LoadSubModule(pScrn, "int10"))
- goto error;
-
- xf86DrvMsg(screen,X_INFO,"initializing int10\n");
- pInt = xf86ExtendedInitInt10(entityIndex,Flags);
- if (!pInt)
- goto error;
- init_int10 = TRUE;
- }
-
- page = xf86Int10AllocPages(pInt,1,&RealOff);
- if (!page) goto error;
- vbe = (vbeControllerInfoPtr) page;
- memcpy(vbe->VbeSignature,vbeVersionString,4);
-
- pInt->ax = 0x4F00;
- pInt->es = SEG_ADDR(RealOff);
- pInt->di = SEG_OFF(RealOff);
- pInt->num = 0x10;
-
- xf86ExecX86int10(pInt);
-
- if ((pInt->ax & 0xff) != 0x4f) {
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA BIOS not detected\n");
- goto error;
- }
-
- switch (pInt->ax & 0xff00) {
- case 0:
- xf86DrvMsg(screen,X_INFO,"VESA BIOS detected\n");
- break;
- case 0x100:
- xf86DrvMsg(screen,X_INFO,"VESA BIOS function failed\n");
- goto error;
- case 0x200:
- xf86DrvMsg(screen,X_INFO,"VESA BIOS not supported\n");
- goto error;
- case 0x300:
- xf86DrvMsg(screen,X_INFO,"VESA BIOS not supported in current mode\n");
- goto error;
- default:
- xf86DrvMsg(screen,X_INFO,"Invalid\n");
- goto error;
- }
-
- xf86DrvMsgVerb(screen, X_INFO, 4,
- "VbeVersion is %d, OemStringPtr is 0x%08lx,\n"
- "\tOemVendorNamePtr is 0x%08lx, OemProductNamePtr is 0x%08lx,\n"
- "\tOemProductRevPtr is 0x%08lx\n",
- vbe->VbeVersion, (unsigned long)vbe->OemStringPtr,
- (unsigned long)vbe->OemVendorNamePtr,
- (unsigned long)vbe->OemProductNamePtr,
- (unsigned long)vbe->OemProductRevPtr);
-
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE Version %i.%i\n",
- VERSION(vbe->VbeVersion));
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE Total Mem: %i kB\n",
- vbe->TotalMem * 64);
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE OEM: %s\n",
- (CARD8*)xf86int10Addr(pInt,L_ADD(vbe->OemStringPtr)));
-
- if (B_O16(vbe->VbeVersion) >= 0x200) {
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE OEM Software Rev: %i.%i\n",
- VERSION(vbe->OemSoftwareRev));
- if (vbe->OemVendorNamePtr)
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE OEM Vendor: %s\n",
- (CARD8*)xf86int10Addr(pInt,L_ADD(vbe->OemVendorNamePtr)));
- if (vbe->OemProductNamePtr)
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE OEM Product: %s\n",
- (CARD8*)xf86int10Addr(pInt,L_ADD(vbe->OemProductNamePtr)));
- if (vbe->OemProductRevPtr)
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE OEM Product Rev: %s\n",
- (CARD8*)xf86int10Addr(pInt,L_ADD(vbe->OemProductRevPtr)));
- }
- vip = (vbeInfoPtr)xnfalloc(sizeof(vbeInfoRec));
- vip->version = B_O16(vbe->VbeVersion);
- vip->pInt10 = pInt;
- vip->ddc = DDC_UNCHECKED;
- vip->memory = page;
- vip->real_mode_base = RealOff;
- vip->num_pages = 1;
- vip->init_int10 = init_int10;
-
- return vip;
-
- error:
- if (page)
- xf86Int10FreePages(pInt, page, 1);
- if (init_int10)
- xf86FreeInt10(pInt);
- return NULL;
-}
-
-void
-vbeFree(vbeInfoPtr pVbe)
-{
- if (!pVbe)
- return;
-
- xf86Int10FreePages(pVbe->pInt10,pVbe->memory,pVbe->num_pages);
- /* If we have initalized int10 we ought to free it, too */
- if (pVbe->init_int10)
- xf86FreeInt10(pVbe->pInt10);
- free(pVbe);
- return;
-}
-
-static Bool
-vbeProbeDDC(vbeInfoPtr pVbe)
-{
- char *ddc_level;
- int screen = pVbe->pInt10->scrnIndex;
-
- if (pVbe->ddc == DDC_NONE)
- return FALSE;
- if (pVbe->ddc != DDC_UNCHECKED)
- return TRUE;
-
- pVbe->pInt10->ax = 0x4F15;
- pVbe->pInt10->bx = 0;
- pVbe->pInt10->cx = 0;
- pVbe->pInt10->es = 0;
- pVbe->pInt10->di = 0;
- pVbe->pInt10->num = 0x10;
-
- xf86ExecX86int10(pVbe->pInt10);
-
- if ((pVbe->pInt10->ax & 0xff) != 0x4f) {
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC not supported\n");
- pVbe->ddc = DDC_NONE;
- return FALSE;
- }
-
- switch ((pVbe->pInt10->ax >> 8) & 0xff) {
- case 0:
- xf86DrvMsg(screen,X_INFO,"VESA VBE DDC supported\n");
- switch (pVbe->pInt10->bx & 0x3) {
- case 0:
- ddc_level = " none";
- pVbe->ddc = DDC_NONE;
- break;
- case 1:
- ddc_level = " 1";
- pVbe->ddc = DDC_1;
- break;
- case 2:
- ddc_level = " 2";
- pVbe->ddc = DDC_2;
- break;
- case 3:
- ddc_level = " 1 + 2";
- pVbe->ddc = DDC_1_2;
- break;
- default:
- ddc_level = "";
- pVbe->ddc = DDC_NONE;
- break;
- }
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC Level%s\n",ddc_level);
- if (pVbe->pInt10->bx & 0x4) {
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC Screen blanked"
- "for data transfer\n");
- pVbe->ddc_blank = TRUE;
- } else
- pVbe->ddc_blank = FALSE;
-
- xf86DrvMsgVerb(screen,X_INFO,3,
- "VESA VBE DDC transfer in appr. %x sec.\n",
- (pVbe->pInt10->bx >> 8) & 0xff);
- }
-
- return TRUE;
-}
-
-typedef enum {
- VBEOPT_NOVBE,
- VBEOPT_NODDC
-} VBEOpts;
-
-static const OptionInfoRec VBEOptions[] = {
- { VBEOPT_NOVBE, "NoVBE", OPTV_BOOLEAN, {0}, FALSE },
- { VBEOPT_NODDC, "NoDDC", OPTV_BOOLEAN, {0}, FALSE },
- { -1, NULL, OPTV_NONE, {0}, FALSE },
-};
-
-static unsigned char *
-vbeReadEDID(vbeInfoPtr pVbe)
-{
- int RealOff = pVbe->real_mode_base;
- pointer page = pVbe->memory;
- unsigned char *tmp = NULL;
- Bool novbe = FALSE;
- Bool noddc = FALSE;
- int screen = pVbe->pInt10->scrnIndex;
- OptionInfoPtr options;
-
- if (!page) return NULL;
-
- options = xnfalloc(sizeof(VBEOptions));
- (void)memcpy(options, VBEOptions, sizeof(VBEOptions));
- xf86ProcessOptions(screen, xf86Screens[screen]->options, options);
- xf86GetOptValBool(options, VBEOPT_NOVBE, &novbe);
- xf86GetOptValBool(options, VBEOPT_NODDC, &noddc);
- free(options);
- if (novbe || noddc) return NULL;
-
- if (!vbeProbeDDC(pVbe)) goto error;
-
- memset(page,0,sizeof(vbeInfoPtr));
- strcpy(page,vbeVersionString);
-
- pVbe->pInt10->ax = 0x4F15;
- pVbe->pInt10->bx = 0x01;
- pVbe->pInt10->cx = 0;
- pVbe->pInt10->dx = 0;
- pVbe->pInt10->es = SEG_ADDR(RealOff);
- pVbe->pInt10->di = SEG_OFF(RealOff);
- pVbe->pInt10->num = 0x10;
-
- xf86ExecX86int10(pVbe->pInt10);
-
- if ((pVbe->pInt10->ax & 0xff) != 0x4f) {
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC invalid\n");
- goto error;
- }
- switch (pVbe->pInt10->ax & 0xff00) {
- case 0x0:
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC read successfully\n");
- tmp = (unsigned char *)xnfalloc(128);
- memcpy(tmp,page,128);
- break;
- case 0x100:
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC read failed\n");
- break;
- default:
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC unkown failure %i\n",
- pVbe->pInt10->ax & 0xff00);
- break;
- }
-
- error:
- return tmp;
-}
-
-xf86MonPtr
-vbeDoEDID(vbeInfoPtr pVbe, pointer pDDCModule)
-{
- xf86MonPtr pMonitor;
- pointer pModule;
- unsigned char *DDC_data = NULL;
-
- if (!pVbe) return NULL;
- if (pVbe->version < 0x200)
- return NULL;
-
- if (!(pModule = pDDCModule)) {
- pModule =
- xf86LoadSubModule(xf86Screens[pVbe->pInt10->scrnIndex], "ddc");
- if (!pModule)
- return NULL;
- }
-
- DDC_data = vbeReadEDID(pVbe);
-
- if (!DDC_data)
- return NULL;
-
- pMonitor = xf86InterpretEDID(pVbe->pInt10->scrnIndex, DDC_data);
-
- if (!pDDCModule)
- xf86UnloadSubModule(pModule);
- return pMonitor;
-}
-
-#define GET_UNALIGNED2(x) \
- ((*(CARD16*)(x)) | (*(((CARD16*)(x) + 1))) << 16)
-
-VbeInfoBlock *
-VBEGetVBEInfo(vbeInfoPtr pVbe)
-{
- VbeInfoBlock *block = NULL;
- int i, pStr, pModes;
- char *str;
- CARD16 major, *modes;
-
- memset(pVbe->memory, 0, sizeof(VbeInfoBlock));
-
- /*
- Input:
- AH := 4Fh Super VGA support
- AL := 00h Return Super VGA information
- ES:DI := Pointer to buffer
-
- Output:
- AX := status
- (All other registers are preserved)
- */
-
- ((char*)pVbe->memory)[0] = 'V';
- ((char*)pVbe->memory)[1] = 'B';
- ((char*)pVbe->memory)[2] = 'E';
- ((char*)pVbe->memory)[3] = '2';
-
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f00;
- pVbe->pInt10->es = SEG_ADDR(pVbe->real_mode_base);
- pVbe->pInt10->di = SEG_OFF(pVbe->real_mode_base);
- xf86ExecX86int10(pVbe->pInt10);
-
- if (R16(pVbe->pInt10->ax) != 0x4f)
- return NULL;
-
- block = calloc(sizeof(VbeInfoBlock), 1);
- block->VESASignature[0] = ((char*)pVbe->memory)[0];
- block->VESASignature[1] = ((char*)pVbe->memory)[1];
- block->VESASignature[2] = ((char*)pVbe->memory)[2];
- block->VESASignature[3] = ((char*)pVbe->memory)[3];
-
- block->VESAVersion = *(CARD16*)(((char*)pVbe->memory) + 4);
- major = (unsigned)block->VESAVersion >> 8;
-
- pStr = GET_UNALIGNED2((((char*)pVbe->memory) + 6));
- str = xf86int10Addr(pVbe->pInt10, FARP(pStr));
- block->OEMStringPtr = strdup(str);
-
- block->Capabilities[0] = ((char*)pVbe->memory)[10];
- block->Capabilities[1] = ((char*)pVbe->memory)[11];
- block->Capabilities[2] = ((char*)pVbe->memory)[12];
- block->Capabilities[3] = ((char*)pVbe->memory)[13];
-
- pModes = GET_UNALIGNED2((((char*)pVbe->memory) + 14));
- modes = xf86int10Addr(pVbe->pInt10, FARP(pModes));
- i = 0;
- while (modes[i] != 0xffff)
- i++;
- block->VideoModePtr = malloc(sizeof(CARD16) * i + 1);
- memcpy(block->VideoModePtr, modes, sizeof(CARD16) * i);
- block->VideoModePtr[i] = 0xffff;
-
- block->TotalMemory = *(CARD16*)(((char*)pVbe->memory) + 18);
-
- if (major < 2)
- memcpy(&block->OemSoftwareRev, ((char*)pVbe->memory) + 20, 236);
- else {
- block->OemSoftwareRev = *(CARD16*)(((char*)pVbe->memory) + 20);
- pStr = GET_UNALIGNED2((((char*)pVbe->memory) + 22));
- str = xf86int10Addr(pVbe->pInt10, FARP(pStr));
- block->OemVendorNamePtr = strdup(str);
- pStr = GET_UNALIGNED2((((char*)pVbe->memory) + 26));
- str = xf86int10Addr(pVbe->pInt10, FARP(pStr));
- block->OemProductNamePtr = strdup(str);
- pStr = GET_UNALIGNED2((((char*)pVbe->memory) + 30));
- str = xf86int10Addr(pVbe->pInt10, FARP(pStr));
- block->OemProductRevPtr = strdup(str);
- memcpy(&block->Reserved, ((char*)pVbe->memory) + 34, 222);
- memcpy(&block->OemData, ((char*)pVbe->memory) + 256, 256);
- }
-
- return block;
-}
-
-void
-VBEFreeVBEInfo(VbeInfoBlock *block)
-{
- free(block->OEMStringPtr);
- free(block->VideoModePtr);
- if (((unsigned)block->VESAVersion >> 8) >= 2) {
- free(block->OemVendorNamePtr);
- free(block->OemProductNamePtr);
- free(block->OemProductRevPtr);
- }
- free(block);
-}
-
-Bool
-VBESetVBEMode(vbeInfoPtr pVbe, int mode, VbeCRTCInfoBlock *block)
-{
- /*
- Input:
- AH := 4Fh Super VGA support
- AL := 02h Set Super VGA video mode
- BX := Video mode
- D0-D8 := Mode number
- D9-D10 := Reserved (must be 0)
- D11 := 0 Use current default refresh rate
- := 1 Use user specified CRTC values for refresh rate
- D12-13 Reserved for VBE/AF (must be 0)
- D14 := 0 Use windowed frame buffer model
- := 1 Use linear/flat frame buffer model
- D15 := 0 Clear video memory
- := 1 Don't clear video memory
- ES:DI := Pointer to VbeCRTCInfoBlock structure
-
- Output: AX = Status
- (All other registers are preserved)
- */
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f02;
- pVbe->pInt10->bx = mode;
- if (block) {
- pVbe->pInt10->bx |= 1 << 11;
- memcpy(pVbe->memory, block, sizeof(VbeCRTCInfoBlock));
- pVbe->pInt10->es = SEG_ADDR(pVbe->real_mode_base);
- pVbe->pInt10->di = SEG_OFF(pVbe->real_mode_base);
- } else
- pVbe->pInt10->bx &= ~(1 << 11);
-
- xf86ExecX86int10(pVbe->pInt10);
-
- return (R16(pVbe->pInt10->ax) == 0x4f);
-}
-
-Bool
-VBEGetVBEMode(vbeInfoPtr pVbe, int *mode)
-{
- /*
- Input:
- AH := 4Fh Super VGA support
- AL := 03h Return current video mode
-
- Output:
- AX := Status
- BX := Current video mode
- (All other registers are preserved)
- */
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f03;
-
- xf86ExecX86int10(pVbe->pInt10);
-
- if (R16(pVbe->pInt10->ax) == 0x4f) {
- *mode = R16(pVbe->pInt10->bx);
-
- return TRUE;
- }
-
- return FALSE;
-}
-
-VbeModeInfoBlock *
-VBEGetModeInfo(vbeInfoPtr pVbe, int mode)
-{
- VbeModeInfoBlock *block = NULL;
-
- memset(pVbe->memory, 0, sizeof(VbeModeInfoBlock));
-
- /*
- Input:
- AH := 4Fh Super VGA support
- AL := 01h Return Super VGA mode information
- CX := Super VGA video mode
- (mode number must be one of those returned by Function 0)
- ES:DI := Pointer to buffer
-
- Output:
- AX := status
- (All other registers are preserved)
- */
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f01;
- pVbe->pInt10->cx = mode;
- pVbe->pInt10->es = SEG_ADDR(pVbe->real_mode_base);
- pVbe->pInt10->di = SEG_OFF(pVbe->real_mode_base);
- xf86ExecX86int10(pVbe->pInt10);
- if (R16(pVbe->pInt10->ax) != 0x4f)
- return NULL;
-
- block = malloc(sizeof(VbeModeInfoBlock));
- if (block)
- memcpy(block, pVbe->memory, sizeof(*block));
-
- return block;
-}
-
-void
-VBEFreeModeInfo(VbeModeInfoBlock *block)
-{
- free(block);
-}
-
-Bool
-VBESaveRestore(vbeInfoPtr pVbe, vbeSaveRestoreFunction function,
- pointer *memory, int *size, int *real_mode_pages)
-{
- /*
- Input:
- AH := 4Fh Super VGA support
- AL := 04h Save/restore Super VGA video state
- DL := 00h Return save/restore state buffer size
- CX := Requested states
- D0 = Save/restore video hardware state
- D1 = Save/restore video BIOS data state
- D2 = Save/restore video DAC state
- D3 = Save/restore Super VGA state
-
- Output:
- AX = Status
- BX = Number of 64-byte blocks to hold the state buffer
- (All other registers are preserved)
-
-
- Input:
- AH := 4Fh Super VGA support
- AL := 04h Save/restore Super VGA video state
- DL := 01h Save Super VGA video state
- CX := Requested states (see above)
- ES:BX := Pointer to buffer
-
- Output:
- AX := Status
- (All other registers are preserved)
-
-
- Input:
- AH := 4Fh Super VGA support
- AL := 04h Save/restore Super VGA video state
- DL := 02h Restore Super VGA video state
- CX := Requested states (see above)
- ES:BX := Pointer to buffer
-
- Output:
- AX := Status
- (All other registers are preserved)
- */
-
- if ((pVbe->version & 0xff00) > 0x100) {
- int screen = pVbe->pInt10->scrnIndex;
- if (function == MODE_QUERY ||
- (function == MODE_SAVE && !*memory)) {
- /* Query amount of memory to save state */
-
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f04;
- pVbe->pInt10->dx = 0;
- pVbe->pInt10->cx = 0x000f;
- xf86ExecX86int10(pVbe->pInt10);
- if (R16(pVbe->pInt10->ax) != 0x4f)
- return FALSE;
-
- if (function == MODE_SAVE) {
- int npages = (R16(pVbe->pInt10->bx) * 64) / 4096 + 1;
- if ((*memory = xf86Int10AllocPages(pVbe->pInt10, npages,
- real_mode_pages)) == NULL) {
- xf86DrvMsg(screen, X_ERROR,
- "Cannot allocate memory to save SVGA state.\n");
- return FALSE;
- }
- }
- *size = pVbe->pInt10->bx * 64;
- }
-
- /* Save/Restore Super VGA state */
- if (function != MODE_QUERY) {
-
- if (!*memory) return FALSE;
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f04;
- switch (function) {
- case MODE_SAVE:
- pVbe->pInt10->dx = 1;
- break;
- case MODE_RESTORE:
- pVbe->pInt10->dx = 2;
- break;
- case MODE_QUERY:
- return FALSE;
- }
- pVbe->pInt10->cx = 0x000f;
-
- pVbe->pInt10->es = SEG_ADDR(*real_mode_pages);
- pVbe->pInt10->bx = SEG_OFF(*real_mode_pages);
- xf86ExecX86int10(pVbe->pInt10);
- return (R16(pVbe->pInt10->ax) == 0x4f);
-
- }
- }
- return TRUE;
-}
-
-Bool
-VBEBankSwitch(vbeInfoPtr pVbe, unsigned int iBank, int window)
-{
- /*
- Input:
- AH := 4Fh Super VGA support
- AL := 05h
-
- Output:
- */
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f05;
- pVbe->pInt10->bx = window;
- pVbe->pInt10->dx = iBank;
- xf86ExecX86int10(pVbe->pInt10);
-
- if (R16(pVbe->pInt10->ax) != 0x4f)
- return FALSE;
-
- return TRUE;
-}
-
-Bool
-VBESetGetLogicalScanlineLength(vbeInfoPtr pVbe, vbeScanwidthCommand command,
- int width, int *pixels, int *bytes, int *max)
-{
- if (command < SCANWID_SET || command > SCANWID_GET_MAX)
- return FALSE;
-
- /*
- Input:
- AX := 4F06h VBE Set/Get Logical Scan Line Length
- BL := 00h Set Scan Line Length in Pixels
- := 01h Get Scan Line Length
- := 02h Set Scan Line Length in Bytes
- := 03h Get Maximum Scan Line Length
- CX := If BL=00h Desired Width in Pixels
- If BL=02h Desired Width in Bytes
- (Ignored for Get Functions)
-
- Output:
- AX := VBE Return Status
- BX := Bytes Per Scan Line
- CX := Actual Pixels Per Scan Line
- (truncated to nearest complete pixel)
- DX := Maximum Number of Scan Lines
- */
-
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f06;
- pVbe->pInt10->bx = command;
- if (command == SCANWID_SET || command == SCANWID_SET_BYTES)
- pVbe->pInt10->cx = width;
- xf86ExecX86int10(pVbe->pInt10);
-
- if (R16(pVbe->pInt10->ax) != 0x4f)
- return FALSE;
-
- if (command == SCANWID_GET || command == SCANWID_GET_MAX) {
- if (pixels)
- *pixels = R16(pVbe->pInt10->cx);
- if (bytes)
- *bytes = R16(pVbe->pInt10->bx);
- if (max)
- *max = R16(pVbe->pInt10->dx);
- }
-
- return TRUE;
-}
-
-Bool
-VBESetDisplayStart(vbeInfoPtr pVbe, int x, int y, Bool wait_retrace)
-{
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f07;
- pVbe->pInt10->bx = wait_retrace ? 0x80 : 0x00;
- pVbe->pInt10->cx = x;
- pVbe->pInt10->dx = y;
- xf86ExecX86int10(pVbe->pInt10);
-
- if (R16(pVbe->pInt10->ax) != 0x4f)
- return FALSE;
-
- return TRUE;
-}
-
-Bool
-VBEGetDisplayStart(vbeInfoPtr pVbe, int *x, int *y)
-{
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f07;
- pVbe->pInt10->bx = 0x01;
- xf86ExecX86int10(pVbe->pInt10);
-
- if (R16(pVbe->pInt10->ax) != 0x4f)
- return FALSE;
-
- *x = pVbe->pInt10->cx;
- *y = pVbe->pInt10->dx;
-
- return TRUE;
-}
-
-int
-VBESetGetDACPaletteFormat(vbeInfoPtr pVbe, int bits)
-{
- /*
- Input:
- AX := 4F08h VBE Set/Get Palette Format
- BL := 00h Set DAC Palette Format
- := 01h Get DAC Palette Format
- BH := Desired bits of color per primary
- (Set DAC Palette Format only)
-
- Output:
- AX := VBE Return Status
- BH := Current number of bits of color per primary
- */
-
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f08;
- if (!bits)
- pVbe->pInt10->bx = 0x01;
- else
- pVbe->pInt10->bx = (bits & 0x00ff) << 8;
- xf86ExecX86int10(pVbe->pInt10);
-
- if (R16(pVbe->pInt10->ax) != 0x4f)
- return 0;
-
- return (bits != 0 ? bits : (pVbe->pInt10->bx >> 8) & 0x00ff);
-}
-
-CARD32 *
-VBESetGetPaletteData(vbeInfoPtr pVbe, Bool set, int first, int num,
- CARD32 *data, Bool secondary, Bool wait_retrace)
-{
- /*
- Input:
- (16-bit)
- AX := 4F09h VBE Load/Unload Palette Data
- BL := 00h Set Palette Data
- := 01h Get Palette Data
- := 02h Set Secondary Palette Data
- := 03h Get Secondary Palette Data
- := 80h Set Palette Data during Vertical Retrace
- CX := Number of palette registers to update (to a maximum of 256)
- DX := First of the palette registers to update (start)
- ES:DI := Table of palette values (see below for format)
-
- Output:
- AX := VBE Return Status
-
-
- Input:
- (32-bit)
- BL := 00h Set Palette Data
- := 80h Set Palette Data during Vertical Retrace
- CX := Number of palette registers to update (to a maximum of 256)
- DX := First of the palette registers to update (start)
- ES:EDI := Table of palette values (see below for format)
- DS := Selector for memory mapped registers
- */
-
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f09;
- if (!secondary)
- pVbe->pInt10->bx = set && wait_retrace ? 0x80 : set ? 0 : 1;
- else
- pVbe->pInt10->bx = set ? 2 : 3;
- pVbe->pInt10->cx = num;
- pVbe->pInt10->dx = first;
- pVbe->pInt10->es = SEG_ADDR(pVbe->real_mode_base);
- pVbe->pInt10->di = SEG_OFF(pVbe->real_mode_base);
- if (set)
- memcpy(pVbe->memory, data, num * sizeof(CARD32));
- xf86ExecX86int10(pVbe->pInt10);
-
- if (R16(pVbe->pInt10->ax) != 0x4f)
- return NULL;
-
- if (set)
- return data;
-
- data = malloc(num * sizeof(CARD32));
- memcpy(data, pVbe->memory, num * sizeof(CARD32));
-
- return data;
-}
-
-VBEpmi *
-VBEGetVBEpmi(vbeInfoPtr pVbe)
-{
- VBEpmi *pmi;
-
- /*
- Input:
- AH := 4Fh Super VGA support
- AL := 0Ah Protected Mode Interface
- BL := 00h Return Protected Mode Table
-
- Output:
- AX := Status
- ES := Real Mode Segment of Table
- DI := Offset of Table
- CX := Lenght of Table including protected mode code in bytes (for copying purposes)
- (All other registers are preserved)
- */
-
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f0a;
- pVbe->pInt10->bx = 0;
- pVbe->pInt10->di = 0;
- xf86ExecX86int10(pVbe->pInt10);
-
- if (R16(pVbe->pInt10->ax) != 0x4f)
- return NULL;
-
- pmi = malloc(sizeof(VBEpmi));
- pmi->seg_tbl = R16(pVbe->pInt10->es);
- pmi->tbl_off = R16(pVbe->pInt10->di);
- pmi->tbl_len = R16(pVbe->pInt10->cx);
-
- return pmi;
-}
-
-#if 0
-vbeModeInfoPtr
-VBEBuildVbeModeList(vbeInfoPtr pVbe, VbeInfoBlock *vbe)
-{
- vbeModeInfoPtr ModeList = NULL;
-
- int i = 0;
- while (vbe->VideoModePtr[i] != 0xffff) {
- vbeModeInfoPtr m;
- VbeModeInfoBlock *mode;
- int id = vbe->VideoModePtr[i++];
- int bpp;
-
- if ((mode = VBEGetModeInfo(pVbe, id)) == NULL)
- continue;
-
- bpp = mode->BitsPerPixel;
-
- m = xnfcalloc(sizeof(vbeModeInfoRec),1);
- m->width = mode->XResolution;
- m->height = mode->YResolution;
- m->bpp = bpp;
- m->n = id;
- m->next = ModeList;
-
- xf86DrvMsgVerb(pVbe->pInt10->scrnIndex, X_PROBED, 3,
- "BIOS reported VESA mode 0x%x: x:%i y:%i bpp:%i\n",
- m->n, m->width, m->height, m->bpp);
-
- ModeList = m;
-
- VBEFreeModeInfo(mode);
- }
- return ModeList;
-}
-
-unsigned short
-VBECalcVbeModeIndex(vbeModeInfoPtr m, DisplayModePtr mode, int bpp)
-{
- while (m) {
- if (bpp == m->bpp
- && mode->HDisplay == m->width
- && mode->VDisplay == m->height)
- return m->n;
- m = m->next;
- }
- return 0;
-}
-#endif
-
-void
-VBEVesaSaveRestore(vbeInfoPtr pVbe, vbeSaveRestorePtr vbe_sr,
- vbeSaveRestoreFunction function)
-{
- Bool SaveSucc = FALSE;
-
- if (VBE_VERSION_MAJOR(pVbe->version) > 1
- && (function == MODE_SAVE || vbe_sr->pstate)) {
- if (function == MODE_RESTORE)
- memcpy(vbe_sr->state, vbe_sr->pstate, vbe_sr->stateSize);
- ErrorF("VBESaveRestore\n");
- if ((VBESaveRestore(pVbe,function,
- (pointer)&vbe_sr->state,
- &vbe_sr->stateSize,&vbe_sr->statePage))) {
- if (function == MODE_SAVE) {
- SaveSucc = TRUE;
- vbe_sr->stateMode = -1; /* invalidate */
- /* don't rely on the memory not being touched */
- if (vbe_sr->pstate == NULL)
- vbe_sr->pstate = malloc(vbe_sr->stateSize);
- memcpy(vbe_sr->pstate, vbe_sr->state, vbe_sr->stateSize);
- }
- ErrorF("VBESaveRestore done with success\n");
- return;
- }
- ErrorF("VBESaveRestore done\n");
- }
-
- if (function == MODE_SAVE && !SaveSucc)
- (void)VBEGetVBEMode(pVbe, &vbe_sr->stateMode);
-
- if (function == MODE_RESTORE && vbe_sr->stateMode != -1)
- VBESetVBEMode(pVbe, vbe_sr->stateMode, NULL);
-
-}
-
-int
-VBEGetPixelClock(vbeInfoPtr pVbe, int mode, int clock)
-{
- /*
- Input:
- AX := 4F0Bh VBE Get Pixel Clock
- BL := 00h Get Pixel Clock
- ECX := pixel clock in units of Hz
- DX := mode number
-
- Output:
- AX := VBE Return Status
- ECX := Closest pixel clock
- */
-
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f0b;
- pVbe->pInt10->bx = 0x00;
- pVbe->pInt10->cx = clock;
- pVbe->pInt10->dx = mode;
- xf86ExecX86int10(pVbe->pInt10);
-
- if (R16(pVbe->pInt10->ax) != 0x4f)
- return 0;
-
- return pVbe->pInt10->cx;
-}
-
-Bool
-VBEDPMSSet(vbeInfoPtr pVbe, int mode)
-{
- /*
- Input:
- AX := 4F10h DPMS
- BL := 01h Set Display Power State
- BH := requested power state
-
- Output:
- AX := VBE Return Status
- */
-
- pVbe->pInt10->num = 0x10;
- pVbe->pInt10->ax = 0x4f10;
- pVbe->pInt10->bx = 0x01;
- switch (mode) {
- case DPMSModeOn:
- break;
- case DPMSModeStandby:
- pVbe->pInt10->bx |= 0x100;
- break;
- case DPMSModeSuspend:
- pVbe->pInt10->bx |= 0x200;
- break;
- case DPMSModeOff:
- pVbe->pInt10->bx |= 0x400;
- break;
- }
- xf86ExecX86int10(pVbe->pInt10);
- return (R16(pVbe->pInt10->ax) == 0x4f);
-}
-
-void
-VBEInterpretPanelID(int scrnIndex, struct vbePanelID *data)
-{
- ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
- DisplayModePtr mode;
- const float PANEL_HZ = 60.0;
-
- if (!data)
- return;
-
- xf86DrvMsg(scrnIndex, X_INFO, "PanelID returned panel resolution %dx%d\n",
- data->hsize, data->vsize);
-
- if (pScrn->monitor->nHsync || pScrn->monitor->nVrefresh)
- return;
-
- if (data->hsize < 320 || data->vsize < 240) {
- xf86DrvMsg(scrnIndex, X_INFO, "...which I refuse to believe\n");
- return;
- }
-
- mode = xf86CVTMode(data->hsize, data->vsize, PANEL_HZ, 1, 0);
-
- pScrn->monitor->nHsync = 1;
- pScrn->monitor->hsync[0].lo = 31.5;
- pScrn->monitor->hsync[0].hi = (float)mode->Clock / (float)mode->HTotal;
- pScrn->monitor->nVrefresh = 1;
- pScrn->monitor->vrefresh[0].lo = 56.0;
- pScrn->monitor->vrefresh[0].hi =
- (float)mode->Clock*1000.0 / (float)mode->HTotal / (float)mode->VTotal;
-
- free(mode);
-}
-
-struct vbePanelID *
-VBEReadPanelID(vbeInfoPtr pVbe)
-{
- int RealOff = pVbe->real_mode_base;
- pointer page = pVbe->memory;
- void *tmp = NULL;
- int screen = pVbe->pInt10->scrnIndex;
-
- pVbe->pInt10->ax = 0x4F11;
- pVbe->pInt10->bx = 0x01;
- pVbe->pInt10->cx = 0;
- pVbe->pInt10->dx = 0;
- pVbe->pInt10->es = SEG_ADDR(RealOff);
- pVbe->pInt10->di = SEG_OFF(RealOff);
- pVbe->pInt10->num = 0x10;
-
- xf86ExecX86int10(pVbe->pInt10);
-
- if ((pVbe->pInt10->ax & 0xff) != 0x4f) {
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE PanelID invalid\n");
- goto error;
- }
-
- switch (pVbe->pInt10->ax & 0xff00) {
- case 0x0:
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE PanelID read successfully\n");
- tmp = xnfalloc(32);
- memcpy(tmp, page, 32);
- break;
- case 0x100:
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE PanelID read failed\n");
- break;
- default:
- xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE PanelID unknown failure %i\n",
- pVbe->pInt10->ax & 0xff00);
- break;
- }
-
-error:
- return tmp;
-}
+
+/*
+ * XFree86 vbe module
+ * Copyright 2000 Egbert Eich
+ *
+ * The mode query/save/set/restore functions from the vesa driver
+ * have been moved here.
+ * Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com)
+ * Authors: Paulo César Pereira de Andrade <pcpa@conectiva.com.br>
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <string.h>
+
+#include "xf86.h"
+#include "vbe.h"
+#include <X11/extensions/dpmsconst.h>
+
+#define VERSION(x) VBE_VERSION_MAJOR(x),VBE_VERSION_MINOR(x)
+
+#if X_BYTE_ORDER == X_LITTLE_ENDIAN
+#define B_O16(x) (x)
+#define B_O32(x) (x)
+#else
+#define B_O16(x) ((((x) & 0xff) << 8) | (((x) & 0xff) >> 8))
+#define B_O32(x) ((((x) & 0xff) << 24) | (((x) & 0xff00) << 8) \
+ | (((x) & 0xff0000) >> 8) | (((x) & 0xff000000) >> 24))
+#endif
+#define L_ADD(x) (B_O32(x) & 0xffff) + ((B_O32(x) >> 12) & 0xffff00)
+
+#define FARP(p) (((unsigned)(p & 0xffff0000) >> 12) | (p & 0xffff))
+#define R16(v) ((v) & 0xffff)
+
+static unsigned char * vbeReadEDID(vbeInfoPtr pVbe);
+static Bool vbeProbeDDC(vbeInfoPtr pVbe);
+
+static const char vbeVersionString[] = "VBE2";
+
+vbeInfoPtr
+VBEInit(xf86Int10InfoPtr pInt, int entityIndex)
+{
+ return VBEExtendedInit(pInt, entityIndex, 0);
+}
+
+vbeInfoPtr
+VBEExtendedInit(xf86Int10InfoPtr pInt, int entityIndex, int Flags)
+{
+ int RealOff;
+ pointer page = NULL;
+ ScrnInfoPtr pScrn = xf86FindScreenForEntity(entityIndex);
+ vbeControllerInfoPtr vbe = NULL;
+ Bool init_int10 = FALSE;
+ vbeInfoPtr vip = NULL;
+ int screen;
+
+ if (!pScrn) return NULL;
+ screen = pScrn->scrnIndex;
+
+ if (!pInt) {
+ if (!xf86LoadSubModule(pScrn, "int10"))
+ goto error;
+
+ xf86DrvMsg(screen,X_INFO,"initializing int10\n");
+ pInt = xf86ExtendedInitInt10(entityIndex,Flags);
+ if (!pInt)
+ goto error;
+ init_int10 = TRUE;
+ }
+
+ page = xf86Int10AllocPages(pInt,1,&RealOff);
+ if (!page) goto error;
+ vbe = (vbeControllerInfoPtr) page;
+ memcpy(vbe->VbeSignature,vbeVersionString,4);
+
+ pInt->ax = 0x4F00;
+ pInt->es = SEG_ADDR(RealOff);
+ pInt->di = SEG_OFF(RealOff);
+ pInt->num = 0x10;
+
+ xf86ExecX86int10(pInt);
+
+ if ((pInt->ax & 0xff) != 0x4f) {
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA BIOS not detected\n");
+ goto error;
+ }
+
+ switch (pInt->ax & 0xff00) {
+ case 0:
+ xf86DrvMsg(screen,X_INFO,"VESA BIOS detected\n");
+ break;
+ case 0x100:
+ xf86DrvMsg(screen,X_INFO,"VESA BIOS function failed\n");
+ goto error;
+ case 0x200:
+ xf86DrvMsg(screen,X_INFO,"VESA BIOS not supported\n");
+ goto error;
+ case 0x300:
+ xf86DrvMsg(screen,X_INFO,"VESA BIOS not supported in current mode\n");
+ goto error;
+ default:
+ xf86DrvMsg(screen,X_INFO,"Invalid\n");
+ goto error;
+ }
+
+ xf86DrvMsgVerb(screen, X_INFO, 4,
+ "VbeVersion is %d, OemStringPtr is 0x%08lx,\n"
+ "\tOemVendorNamePtr is 0x%08lx, OemProductNamePtr is 0x%08lx,\n"
+ "\tOemProductRevPtr is 0x%08lx\n",
+ vbe->VbeVersion, (unsigned long)vbe->OemStringPtr,
+ (unsigned long)vbe->OemVendorNamePtr,
+ (unsigned long)vbe->OemProductNamePtr,
+ (unsigned long)vbe->OemProductRevPtr);
+
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE Version %i.%i\n",
+ VERSION(vbe->VbeVersion));
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE Total Mem: %i kB\n",
+ vbe->TotalMem * 64);
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE OEM: %s\n",
+ (CARD8*)xf86int10Addr(pInt,L_ADD(vbe->OemStringPtr)));
+
+ if (B_O16(vbe->VbeVersion) >= 0x200) {
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE OEM Software Rev: %i.%i\n",
+ VERSION(vbe->OemSoftwareRev));
+ if (vbe->OemVendorNamePtr)
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE OEM Vendor: %s\n",
+ (CARD8*)xf86int10Addr(pInt,L_ADD(vbe->OemVendorNamePtr)));
+ if (vbe->OemProductNamePtr)
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE OEM Product: %s\n",
+ (CARD8*)xf86int10Addr(pInt,L_ADD(vbe->OemProductNamePtr)));
+ if (vbe->OemProductRevPtr)
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE OEM Product Rev: %s\n",
+ (CARD8*)xf86int10Addr(pInt,L_ADD(vbe->OemProductRevPtr)));
+ }
+ vip = (vbeInfoPtr)xnfalloc(sizeof(vbeInfoRec));
+ vip->version = B_O16(vbe->VbeVersion);
+ vip->pInt10 = pInt;
+ vip->ddc = DDC_UNCHECKED;
+ vip->memory = page;
+ vip->real_mode_base = RealOff;
+ vip->num_pages = 1;
+ vip->init_int10 = init_int10;
+
+ return vip;
+
+ error:
+ if (page)
+ xf86Int10FreePages(pInt, page, 1);
+ if (init_int10)
+ xf86FreeInt10(pInt);
+ return NULL;
+}
+
+void
+vbeFree(vbeInfoPtr pVbe)
+{
+ if (!pVbe)
+ return;
+
+ xf86Int10FreePages(pVbe->pInt10,pVbe->memory,pVbe->num_pages);
+ /* If we have initalized int10 we ought to free it, too */
+ if (pVbe->init_int10)
+ xf86FreeInt10(pVbe->pInt10);
+ free(pVbe);
+ return;
+}
+
+static Bool
+vbeProbeDDC(vbeInfoPtr pVbe)
+{
+ char *ddc_level;
+ int screen = pVbe->pInt10->scrnIndex;
+
+ if (pVbe->ddc == DDC_NONE)
+ return FALSE;
+ if (pVbe->ddc != DDC_UNCHECKED)
+ return TRUE;
+
+ pVbe->pInt10->ax = 0x4F15;
+ pVbe->pInt10->bx = 0;
+ pVbe->pInt10->cx = 0;
+ pVbe->pInt10->es = 0;
+ pVbe->pInt10->di = 0;
+ pVbe->pInt10->num = 0x10;
+
+ xf86ExecX86int10(pVbe->pInt10);
+
+ if ((pVbe->pInt10->ax & 0xff) != 0x4f) {
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC not supported\n");
+ pVbe->ddc = DDC_NONE;
+ return FALSE;
+ }
+
+ switch ((pVbe->pInt10->ax >> 8) & 0xff) {
+ case 0:
+ xf86DrvMsg(screen,X_INFO,"VESA VBE DDC supported\n");
+ switch (pVbe->pInt10->bx & 0x3) {
+ case 0:
+ ddc_level = " none";
+ pVbe->ddc = DDC_NONE;
+ break;
+ case 1:
+ ddc_level = " 1";
+ pVbe->ddc = DDC_1;
+ break;
+ case 2:
+ ddc_level = " 2";
+ pVbe->ddc = DDC_2;
+ break;
+ case 3:
+ ddc_level = " 1 + 2";
+ pVbe->ddc = DDC_1_2;
+ break;
+ default:
+ ddc_level = "";
+ pVbe->ddc = DDC_NONE;
+ break;
+ }
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC Level%s\n",ddc_level);
+ if (pVbe->pInt10->bx & 0x4) {
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC Screen blanked"
+ "for data transfer\n");
+ pVbe->ddc_blank = TRUE;
+ } else
+ pVbe->ddc_blank = FALSE;
+
+ xf86DrvMsgVerb(screen,X_INFO,3,
+ "VESA VBE DDC transfer in appr. %x sec.\n",
+ (pVbe->pInt10->bx >> 8) & 0xff);
+ }
+
+ return TRUE;
+}
+
+typedef enum {
+ VBEOPT_NOVBE,
+ VBEOPT_NODDC
+} VBEOpts;
+
+static const OptionInfoRec VBEOptions[] = {
+ { VBEOPT_NOVBE, "NoVBE", OPTV_BOOLEAN, {0}, FALSE },
+ { VBEOPT_NODDC, "NoDDC", OPTV_BOOLEAN, {0}, FALSE },
+ { -1, NULL, OPTV_NONE, {0}, FALSE },
+};
+
+static unsigned char *
+vbeReadEDID(vbeInfoPtr pVbe)
+{
+ int RealOff = pVbe->real_mode_base;
+ pointer page = pVbe->memory;
+ unsigned char *tmp = NULL;
+ Bool novbe = FALSE;
+ Bool noddc = FALSE;
+ int screen = pVbe->pInt10->scrnIndex;
+ OptionInfoPtr options;
+
+ if (!page) return NULL;
+
+ options = xnfalloc(sizeof(VBEOptions));
+ (void)memcpy(options, VBEOptions, sizeof(VBEOptions));
+ xf86ProcessOptions(screen, xf86Screens[screen]->options, options);
+ xf86GetOptValBool(options, VBEOPT_NOVBE, &novbe);
+ xf86GetOptValBool(options, VBEOPT_NODDC, &noddc);
+ free(options);
+ if (novbe || noddc) return NULL;
+
+ if (!vbeProbeDDC(pVbe)) goto error;
+
+ memset(page,0,sizeof(vbeInfoPtr));
+ strcpy(page,vbeVersionString);
+
+ pVbe->pInt10->ax = 0x4F15;
+ pVbe->pInt10->bx = 0x01;
+ pVbe->pInt10->cx = 0;
+ pVbe->pInt10->dx = 0;
+ pVbe->pInt10->es = SEG_ADDR(RealOff);
+ pVbe->pInt10->di = SEG_OFF(RealOff);
+ pVbe->pInt10->num = 0x10;
+
+ xf86ExecX86int10(pVbe->pInt10);
+
+ if ((pVbe->pInt10->ax & 0xff) != 0x4f) {
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC invalid\n");
+ goto error;
+ }
+ switch (pVbe->pInt10->ax & 0xff00) {
+ case 0x0:
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC read successfully\n");
+ tmp = (unsigned char *)xnfalloc(128);
+ memcpy(tmp,page,128);
+ break;
+ case 0x100:
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC read failed\n");
+ break;
+ default:
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE DDC unkown failure %i\n",
+ pVbe->pInt10->ax & 0xff00);
+ break;
+ }
+
+ error:
+ return tmp;
+}
+
+xf86MonPtr
+vbeDoEDID(vbeInfoPtr pVbe, pointer pDDCModule)
+{
+ xf86MonPtr pMonitor;
+ pointer pModule;
+ unsigned char *DDC_data = NULL;
+
+ if (!pVbe) return NULL;
+ if (pVbe->version < 0x200)
+ return NULL;
+
+ if (!(pModule = pDDCModule)) {
+ pModule =
+ xf86LoadSubModule(xf86Screens[pVbe->pInt10->scrnIndex], "ddc");
+ if (!pModule)
+ return NULL;
+ }
+
+ DDC_data = vbeReadEDID(pVbe);
+
+ if (!DDC_data)
+ return NULL;
+
+ pMonitor = xf86InterpretEDID(pVbe->pInt10->scrnIndex, DDC_data);
+
+ if (!pDDCModule)
+ xf86UnloadSubModule(pModule);
+ return pMonitor;
+}
+
+#define GET_UNALIGNED2(x) \
+ ((*(CARD16*)(x)) | (*(((CARD16*)(x) + 1))) << 16)
+
+VbeInfoBlock *
+VBEGetVBEInfo(vbeInfoPtr pVbe)
+{
+ VbeInfoBlock *block = NULL;
+ int i, pStr, pModes;
+ char *str;
+ CARD16 major, *modes;
+
+ memset(pVbe->memory, 0, sizeof(VbeInfoBlock));
+
+ /*
+ Input:
+ AH := 4Fh Super VGA support
+ AL := 00h Return Super VGA information
+ ES:DI := Pointer to buffer
+
+ Output:
+ AX := status
+ (All other registers are preserved)
+ */
+
+ ((char*)pVbe->memory)[0] = 'V';
+ ((char*)pVbe->memory)[1] = 'B';
+ ((char*)pVbe->memory)[2] = 'E';
+ ((char*)pVbe->memory)[3] = '2';
+
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f00;
+ pVbe->pInt10->es = SEG_ADDR(pVbe->real_mode_base);
+ pVbe->pInt10->di = SEG_OFF(pVbe->real_mode_base);
+ xf86ExecX86int10(pVbe->pInt10);
+
+ if (R16(pVbe->pInt10->ax) != 0x4f)
+ return NULL;
+
+ block = calloc(sizeof(VbeInfoBlock), 1);
+ block->VESASignature[0] = ((char*)pVbe->memory)[0];
+ block->VESASignature[1] = ((char*)pVbe->memory)[1];
+ block->VESASignature[2] = ((char*)pVbe->memory)[2];
+ block->VESASignature[3] = ((char*)pVbe->memory)[3];
+
+ block->VESAVersion = *(CARD16*)(((char*)pVbe->memory) + 4);
+ major = (unsigned)block->VESAVersion >> 8;
+
+ pStr = GET_UNALIGNED2((((char*)pVbe->memory) + 6));
+ str = xf86int10Addr(pVbe->pInt10, FARP(pStr));
+ block->OEMStringPtr = strdup(str);
+
+ block->Capabilities[0] = ((char*)pVbe->memory)[10];
+ block->Capabilities[1] = ((char*)pVbe->memory)[11];
+ block->Capabilities[2] = ((char*)pVbe->memory)[12];
+ block->Capabilities[3] = ((char*)pVbe->memory)[13];
+
+ pModes = GET_UNALIGNED2((((char*)pVbe->memory) + 14));
+ modes = xf86int10Addr(pVbe->pInt10, FARP(pModes));
+ i = 0;
+ while (modes[i] != 0xffff)
+ i++;
+ block->VideoModePtr = malloc(sizeof(CARD16) * (i + 1));
+ memcpy(block->VideoModePtr, modes, sizeof(CARD16) * i);
+ block->VideoModePtr[i] = 0xffff;
+
+ block->TotalMemory = *(CARD16*)(((char*)pVbe->memory) + 18);
+
+ if (major < 2)
+ memcpy(&block->OemSoftwareRev, ((char*)pVbe->memory) + 20, 236);
+ else {
+ block->OemSoftwareRev = *(CARD16*)(((char*)pVbe->memory) + 20);
+ pStr = GET_UNALIGNED2((((char*)pVbe->memory) + 22));
+ str = xf86int10Addr(pVbe->pInt10, FARP(pStr));
+ block->OemVendorNamePtr = strdup(str);
+ pStr = GET_UNALIGNED2((((char*)pVbe->memory) + 26));
+ str = xf86int10Addr(pVbe->pInt10, FARP(pStr));
+ block->OemProductNamePtr = strdup(str);
+ pStr = GET_UNALIGNED2((((char*)pVbe->memory) + 30));
+ str = xf86int10Addr(pVbe->pInt10, FARP(pStr));
+ block->OemProductRevPtr = strdup(str);
+ memcpy(&block->Reserved, ((char*)pVbe->memory) + 34, 222);
+ memcpy(&block->OemData, ((char*)pVbe->memory) + 256, 256);
+ }
+
+ return block;
+}
+
+void
+VBEFreeVBEInfo(VbeInfoBlock *block)
+{
+ free(block->OEMStringPtr);
+ free(block->VideoModePtr);
+ if (((unsigned)block->VESAVersion >> 8) >= 2) {
+ free(block->OemVendorNamePtr);
+ free(block->OemProductNamePtr);
+ free(block->OemProductRevPtr);
+ }
+ free(block);
+}
+
+Bool
+VBESetVBEMode(vbeInfoPtr pVbe, int mode, VbeCRTCInfoBlock *block)
+{
+ /*
+ Input:
+ AH := 4Fh Super VGA support
+ AL := 02h Set Super VGA video mode
+ BX := Video mode
+ D0-D8 := Mode number
+ D9-D10 := Reserved (must be 0)
+ D11 := 0 Use current default refresh rate
+ := 1 Use user specified CRTC values for refresh rate
+ D12-13 Reserved for VBE/AF (must be 0)
+ D14 := 0 Use windowed frame buffer model
+ := 1 Use linear/flat frame buffer model
+ D15 := 0 Clear video memory
+ := 1 Don't clear video memory
+ ES:DI := Pointer to VbeCRTCInfoBlock structure
+
+ Output: AX = Status
+ (All other registers are preserved)
+ */
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f02;
+ pVbe->pInt10->bx = mode;
+ if (block) {
+ pVbe->pInt10->bx |= 1 << 11;
+ memcpy(pVbe->memory, block, sizeof(VbeCRTCInfoBlock));
+ pVbe->pInt10->es = SEG_ADDR(pVbe->real_mode_base);
+ pVbe->pInt10->di = SEG_OFF(pVbe->real_mode_base);
+ } else
+ pVbe->pInt10->bx &= ~(1 << 11);
+
+ xf86ExecX86int10(pVbe->pInt10);
+
+ return (R16(pVbe->pInt10->ax) == 0x4f);
+}
+
+Bool
+VBEGetVBEMode(vbeInfoPtr pVbe, int *mode)
+{
+ /*
+ Input:
+ AH := 4Fh Super VGA support
+ AL := 03h Return current video mode
+
+ Output:
+ AX := Status
+ BX := Current video mode
+ (All other registers are preserved)
+ */
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f03;
+
+ xf86ExecX86int10(pVbe->pInt10);
+
+ if (R16(pVbe->pInt10->ax) == 0x4f) {
+ *mode = R16(pVbe->pInt10->bx);
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+VbeModeInfoBlock *
+VBEGetModeInfo(vbeInfoPtr pVbe, int mode)
+{
+ VbeModeInfoBlock *block = NULL;
+
+ memset(pVbe->memory, 0, sizeof(VbeModeInfoBlock));
+
+ /*
+ Input:
+ AH := 4Fh Super VGA support
+ AL := 01h Return Super VGA mode information
+ CX := Super VGA video mode
+ (mode number must be one of those returned by Function 0)
+ ES:DI := Pointer to buffer
+
+ Output:
+ AX := status
+ (All other registers are preserved)
+ */
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f01;
+ pVbe->pInt10->cx = mode;
+ pVbe->pInt10->es = SEG_ADDR(pVbe->real_mode_base);
+ pVbe->pInt10->di = SEG_OFF(pVbe->real_mode_base);
+ xf86ExecX86int10(pVbe->pInt10);
+ if (R16(pVbe->pInt10->ax) != 0x4f)
+ return NULL;
+
+ block = malloc(sizeof(VbeModeInfoBlock));
+ if (block)
+ memcpy(block, pVbe->memory, sizeof(*block));
+
+ return block;
+}
+
+void
+VBEFreeModeInfo(VbeModeInfoBlock *block)
+{
+ free(block);
+}
+
+Bool
+VBESaveRestore(vbeInfoPtr pVbe, vbeSaveRestoreFunction function,
+ pointer *memory, int *size, int *real_mode_pages)
+{
+ /*
+ Input:
+ AH := 4Fh Super VGA support
+ AL := 04h Save/restore Super VGA video state
+ DL := 00h Return save/restore state buffer size
+ CX := Requested states
+ D0 = Save/restore video hardware state
+ D1 = Save/restore video BIOS data state
+ D2 = Save/restore video DAC state
+ D3 = Save/restore Super VGA state
+
+ Output:
+ AX = Status
+ BX = Number of 64-byte blocks to hold the state buffer
+ (All other registers are preserved)
+
+
+ Input:
+ AH := 4Fh Super VGA support
+ AL := 04h Save/restore Super VGA video state
+ DL := 01h Save Super VGA video state
+ CX := Requested states (see above)
+ ES:BX := Pointer to buffer
+
+ Output:
+ AX := Status
+ (All other registers are preserved)
+
+
+ Input:
+ AH := 4Fh Super VGA support
+ AL := 04h Save/restore Super VGA video state
+ DL := 02h Restore Super VGA video state
+ CX := Requested states (see above)
+ ES:BX := Pointer to buffer
+
+ Output:
+ AX := Status
+ (All other registers are preserved)
+ */
+
+ if ((pVbe->version & 0xff00) > 0x100) {
+ int screen = pVbe->pInt10->scrnIndex;
+ if (function == MODE_QUERY ||
+ (function == MODE_SAVE && !*memory)) {
+ /* Query amount of memory to save state */
+
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f04;
+ pVbe->pInt10->dx = 0;
+ pVbe->pInt10->cx = 0x000f;
+ xf86ExecX86int10(pVbe->pInt10);
+ if (R16(pVbe->pInt10->ax) != 0x4f)
+ return FALSE;
+
+ if (function == MODE_SAVE) {
+ int npages = (R16(pVbe->pInt10->bx) * 64) / 4096 + 1;
+ if ((*memory = xf86Int10AllocPages(pVbe->pInt10, npages,
+ real_mode_pages)) == NULL) {
+ xf86DrvMsg(screen, X_ERROR,
+ "Cannot allocate memory to save SVGA state.\n");
+ return FALSE;
+ }
+ }
+ *size = pVbe->pInt10->bx * 64;
+ }
+
+ /* Save/Restore Super VGA state */
+ if (function != MODE_QUERY) {
+
+ if (!*memory) return FALSE;
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f04;
+ switch (function) {
+ case MODE_SAVE:
+ pVbe->pInt10->dx = 1;
+ break;
+ case MODE_RESTORE:
+ pVbe->pInt10->dx = 2;
+ break;
+ case MODE_QUERY:
+ return FALSE;
+ }
+ pVbe->pInt10->cx = 0x000f;
+
+ pVbe->pInt10->es = SEG_ADDR(*real_mode_pages);
+ pVbe->pInt10->bx = SEG_OFF(*real_mode_pages);
+ xf86ExecX86int10(pVbe->pInt10);
+ return (R16(pVbe->pInt10->ax) == 0x4f);
+
+ }
+ }
+ return TRUE;
+}
+
+Bool
+VBEBankSwitch(vbeInfoPtr pVbe, unsigned int iBank, int window)
+{
+ /*
+ Input:
+ AH := 4Fh Super VGA support
+ AL := 05h
+
+ Output:
+ */
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f05;
+ pVbe->pInt10->bx = window;
+ pVbe->pInt10->dx = iBank;
+ xf86ExecX86int10(pVbe->pInt10);
+
+ if (R16(pVbe->pInt10->ax) != 0x4f)
+ return FALSE;
+
+ return TRUE;
+}
+
+Bool
+VBESetGetLogicalScanlineLength(vbeInfoPtr pVbe, vbeScanwidthCommand command,
+ int width, int *pixels, int *bytes, int *max)
+{
+ if (command < SCANWID_SET || command > SCANWID_GET_MAX)
+ return FALSE;
+
+ /*
+ Input:
+ AX := 4F06h VBE Set/Get Logical Scan Line Length
+ BL := 00h Set Scan Line Length in Pixels
+ := 01h Get Scan Line Length
+ := 02h Set Scan Line Length in Bytes
+ := 03h Get Maximum Scan Line Length
+ CX := If BL=00h Desired Width in Pixels
+ If BL=02h Desired Width in Bytes
+ (Ignored for Get Functions)
+
+ Output:
+ AX := VBE Return Status
+ BX := Bytes Per Scan Line
+ CX := Actual Pixels Per Scan Line
+ (truncated to nearest complete pixel)
+ DX := Maximum Number of Scan Lines
+ */
+
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f06;
+ pVbe->pInt10->bx = command;
+ if (command == SCANWID_SET || command == SCANWID_SET_BYTES)
+ pVbe->pInt10->cx = width;
+ xf86ExecX86int10(pVbe->pInt10);
+
+ if (R16(pVbe->pInt10->ax) != 0x4f)
+ return FALSE;
+
+ if (command == SCANWID_GET || command == SCANWID_GET_MAX) {
+ if (pixels)
+ *pixels = R16(pVbe->pInt10->cx);
+ if (bytes)
+ *bytes = R16(pVbe->pInt10->bx);
+ if (max)
+ *max = R16(pVbe->pInt10->dx);
+ }
+
+ return TRUE;
+}
+
+Bool
+VBESetDisplayStart(vbeInfoPtr pVbe, int x, int y, Bool wait_retrace)
+{
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f07;
+ pVbe->pInt10->bx = wait_retrace ? 0x80 : 0x00;
+ pVbe->pInt10->cx = x;
+ pVbe->pInt10->dx = y;
+ xf86ExecX86int10(pVbe->pInt10);
+
+ if (R16(pVbe->pInt10->ax) != 0x4f)
+ return FALSE;
+
+ return TRUE;
+}
+
+Bool
+VBEGetDisplayStart(vbeInfoPtr pVbe, int *x, int *y)
+{
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f07;
+ pVbe->pInt10->bx = 0x01;
+ xf86ExecX86int10(pVbe->pInt10);
+
+ if (R16(pVbe->pInt10->ax) != 0x4f)
+ return FALSE;
+
+ *x = pVbe->pInt10->cx;
+ *y = pVbe->pInt10->dx;
+
+ return TRUE;
+}
+
+int
+VBESetGetDACPaletteFormat(vbeInfoPtr pVbe, int bits)
+{
+ /*
+ Input:
+ AX := 4F08h VBE Set/Get Palette Format
+ BL := 00h Set DAC Palette Format
+ := 01h Get DAC Palette Format
+ BH := Desired bits of color per primary
+ (Set DAC Palette Format only)
+
+ Output:
+ AX := VBE Return Status
+ BH := Current number of bits of color per primary
+ */
+
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f08;
+ if (!bits)
+ pVbe->pInt10->bx = 0x01;
+ else
+ pVbe->pInt10->bx = (bits & 0x00ff) << 8;
+ xf86ExecX86int10(pVbe->pInt10);
+
+ if (R16(pVbe->pInt10->ax) != 0x4f)
+ return 0;
+
+ return (bits != 0 ? bits : (pVbe->pInt10->bx >> 8) & 0x00ff);
+}
+
+CARD32 *
+VBESetGetPaletteData(vbeInfoPtr pVbe, Bool set, int first, int num,
+ CARD32 *data, Bool secondary, Bool wait_retrace)
+{
+ /*
+ Input:
+ (16-bit)
+ AX := 4F09h VBE Load/Unload Palette Data
+ BL := 00h Set Palette Data
+ := 01h Get Palette Data
+ := 02h Set Secondary Palette Data
+ := 03h Get Secondary Palette Data
+ := 80h Set Palette Data during Vertical Retrace
+ CX := Number of palette registers to update (to a maximum of 256)
+ DX := First of the palette registers to update (start)
+ ES:DI := Table of palette values (see below for format)
+
+ Output:
+ AX := VBE Return Status
+
+
+ Input:
+ (32-bit)
+ BL := 00h Set Palette Data
+ := 80h Set Palette Data during Vertical Retrace
+ CX := Number of palette registers to update (to a maximum of 256)
+ DX := First of the palette registers to update (start)
+ ES:EDI := Table of palette values (see below for format)
+ DS := Selector for memory mapped registers
+ */
+
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f09;
+ if (!secondary)
+ pVbe->pInt10->bx = set && wait_retrace ? 0x80 : set ? 0 : 1;
+ else
+ pVbe->pInt10->bx = set ? 2 : 3;
+ pVbe->pInt10->cx = num;
+ pVbe->pInt10->dx = first;
+ pVbe->pInt10->es = SEG_ADDR(pVbe->real_mode_base);
+ pVbe->pInt10->di = SEG_OFF(pVbe->real_mode_base);
+ if (set)
+ memcpy(pVbe->memory, data, num * sizeof(CARD32));
+ xf86ExecX86int10(pVbe->pInt10);
+
+ if (R16(pVbe->pInt10->ax) != 0x4f)
+ return NULL;
+
+ if (set)
+ return data;
+
+ data = malloc(num * sizeof(CARD32));
+ memcpy(data, pVbe->memory, num * sizeof(CARD32));
+
+ return data;
+}
+
+VBEpmi *
+VBEGetVBEpmi(vbeInfoPtr pVbe)
+{
+ VBEpmi *pmi;
+
+ /*
+ Input:
+ AH := 4Fh Super VGA support
+ AL := 0Ah Protected Mode Interface
+ BL := 00h Return Protected Mode Table
+
+ Output:
+ AX := Status
+ ES := Real Mode Segment of Table
+ DI := Offset of Table
+ CX := Lenght of Table including protected mode code in bytes (for copying purposes)
+ (All other registers are preserved)
+ */
+
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f0a;
+ pVbe->pInt10->bx = 0;
+ pVbe->pInt10->di = 0;
+ xf86ExecX86int10(pVbe->pInt10);
+
+ if (R16(pVbe->pInt10->ax) != 0x4f)
+ return NULL;
+
+ pmi = malloc(sizeof(VBEpmi));
+ pmi->seg_tbl = R16(pVbe->pInt10->es);
+ pmi->tbl_off = R16(pVbe->pInt10->di);
+ pmi->tbl_len = R16(pVbe->pInt10->cx);
+
+ return pmi;
+}
+
+#if 0
+vbeModeInfoPtr
+VBEBuildVbeModeList(vbeInfoPtr pVbe, VbeInfoBlock *vbe)
+{
+ vbeModeInfoPtr ModeList = NULL;
+
+ int i = 0;
+ while (vbe->VideoModePtr[i] != 0xffff) {
+ vbeModeInfoPtr m;
+ VbeModeInfoBlock *mode;
+ int id = vbe->VideoModePtr[i++];
+ int bpp;
+
+ if ((mode = VBEGetModeInfo(pVbe, id)) == NULL)
+ continue;
+
+ bpp = mode->BitsPerPixel;
+
+ m = xnfcalloc(sizeof(vbeModeInfoRec),1);
+ m->width = mode->XResolution;
+ m->height = mode->YResolution;
+ m->bpp = bpp;
+ m->n = id;
+ m->next = ModeList;
+
+ xf86DrvMsgVerb(pVbe->pInt10->scrnIndex, X_PROBED, 3,
+ "BIOS reported VESA mode 0x%x: x:%i y:%i bpp:%i\n",
+ m->n, m->width, m->height, m->bpp);
+
+ ModeList = m;
+
+ VBEFreeModeInfo(mode);
+ }
+ return ModeList;
+}
+
+unsigned short
+VBECalcVbeModeIndex(vbeModeInfoPtr m, DisplayModePtr mode, int bpp)
+{
+ while (m) {
+ if (bpp == m->bpp
+ && mode->HDisplay == m->width
+ && mode->VDisplay == m->height)
+ return m->n;
+ m = m->next;
+ }
+ return 0;
+}
+#endif
+
+void
+VBEVesaSaveRestore(vbeInfoPtr pVbe, vbeSaveRestorePtr vbe_sr,
+ vbeSaveRestoreFunction function)
+{
+ Bool SaveSucc = FALSE;
+
+ if (VBE_VERSION_MAJOR(pVbe->version) > 1
+ && (function == MODE_SAVE || vbe_sr->pstate)) {
+ if (function == MODE_RESTORE)
+ memcpy(vbe_sr->state, vbe_sr->pstate, vbe_sr->stateSize);
+ ErrorF("VBESaveRestore\n");
+ if ((VBESaveRestore(pVbe,function,
+ (pointer)&vbe_sr->state,
+ &vbe_sr->stateSize,&vbe_sr->statePage))) {
+ if (function == MODE_SAVE) {
+ SaveSucc = TRUE;
+ vbe_sr->stateMode = -1; /* invalidate */
+ /* don't rely on the memory not being touched */
+ if (vbe_sr->pstate == NULL)
+ vbe_sr->pstate = malloc(vbe_sr->stateSize);
+ memcpy(vbe_sr->pstate, vbe_sr->state, vbe_sr->stateSize);
+ }
+ ErrorF("VBESaveRestore done with success\n");
+ return;
+ }
+ ErrorF("VBESaveRestore done\n");
+ }
+
+ if (function == MODE_SAVE && !SaveSucc)
+ (void)VBEGetVBEMode(pVbe, &vbe_sr->stateMode);
+
+ if (function == MODE_RESTORE && vbe_sr->stateMode != -1)
+ VBESetVBEMode(pVbe, vbe_sr->stateMode, NULL);
+
+}
+
+int
+VBEGetPixelClock(vbeInfoPtr pVbe, int mode, int clock)
+{
+ /*
+ Input:
+ AX := 4F0Bh VBE Get Pixel Clock
+ BL := 00h Get Pixel Clock
+ ECX := pixel clock in units of Hz
+ DX := mode number
+
+ Output:
+ AX := VBE Return Status
+ ECX := Closest pixel clock
+ */
+
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f0b;
+ pVbe->pInt10->bx = 0x00;
+ pVbe->pInt10->cx = clock;
+ pVbe->pInt10->dx = mode;
+ xf86ExecX86int10(pVbe->pInt10);
+
+ if (R16(pVbe->pInt10->ax) != 0x4f)
+ return 0;
+
+ return pVbe->pInt10->cx;
+}
+
+Bool
+VBEDPMSSet(vbeInfoPtr pVbe, int mode)
+{
+ /*
+ Input:
+ AX := 4F10h DPMS
+ BL := 01h Set Display Power State
+ BH := requested power state
+
+ Output:
+ AX := VBE Return Status
+ */
+
+ pVbe->pInt10->num = 0x10;
+ pVbe->pInt10->ax = 0x4f10;
+ pVbe->pInt10->bx = 0x01;
+ switch (mode) {
+ case DPMSModeOn:
+ break;
+ case DPMSModeStandby:
+ pVbe->pInt10->bx |= 0x100;
+ break;
+ case DPMSModeSuspend:
+ pVbe->pInt10->bx |= 0x200;
+ break;
+ case DPMSModeOff:
+ pVbe->pInt10->bx |= 0x400;
+ break;
+ }
+ xf86ExecX86int10(pVbe->pInt10);
+ return (R16(pVbe->pInt10->ax) == 0x4f);
+}
+
+void
+VBEInterpretPanelID(int scrnIndex, struct vbePanelID *data)
+{
+ ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+ DisplayModePtr mode;
+ const float PANEL_HZ = 60.0;
+
+ if (!data)
+ return;
+
+ xf86DrvMsg(scrnIndex, X_INFO, "PanelID returned panel resolution %dx%d\n",
+ data->hsize, data->vsize);
+
+ if (pScrn->monitor->nHsync || pScrn->monitor->nVrefresh)
+ return;
+
+ if (data->hsize < 320 || data->vsize < 240) {
+ xf86DrvMsg(scrnIndex, X_INFO, "...which I refuse to believe\n");
+ return;
+ }
+
+ mode = xf86CVTMode(data->hsize, data->vsize, PANEL_HZ, 1, 0);
+
+ pScrn->monitor->nHsync = 1;
+ pScrn->monitor->hsync[0].lo = 31.5;
+ pScrn->monitor->hsync[0].hi = (float)mode->Clock / (float)mode->HTotal;
+ pScrn->monitor->nVrefresh = 1;
+ pScrn->monitor->vrefresh[0].lo = 56.0;
+ pScrn->monitor->vrefresh[0].hi =
+ (float)mode->Clock*1000.0 / (float)mode->HTotal / (float)mode->VTotal;
+
+ free(mode);
+}
+
+struct vbePanelID *
+VBEReadPanelID(vbeInfoPtr pVbe)
+{
+ int RealOff = pVbe->real_mode_base;
+ pointer page = pVbe->memory;
+ void *tmp = NULL;
+ int screen = pVbe->pInt10->scrnIndex;
+
+ pVbe->pInt10->ax = 0x4F11;
+ pVbe->pInt10->bx = 0x01;
+ pVbe->pInt10->cx = 0;
+ pVbe->pInt10->dx = 0;
+ pVbe->pInt10->es = SEG_ADDR(RealOff);
+ pVbe->pInt10->di = SEG_OFF(RealOff);
+ pVbe->pInt10->num = 0x10;
+
+ xf86ExecX86int10(pVbe->pInt10);
+
+ if ((pVbe->pInt10->ax & 0xff) != 0x4f) {
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE PanelID invalid\n");
+ goto error;
+ }
+
+ switch (pVbe->pInt10->ax & 0xff00) {
+ case 0x0:
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE PanelID read successfully\n");
+ tmp = xnfalloc(32);
+ memcpy(tmp, page, 32);
+ break;
+ case 0x100:
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE PanelID read failed\n");
+ break;
+ default:
+ xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE PanelID unknown failure %i\n",
+ pVbe->pInt10->ax & 0xff00);
+ break;
+ }
+
+error:
+ return tmp;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-28 21:56:23 +0000