diff options
Diffstat (limited to 'xorg-server/hw/xfree86/common/xf86Helper.c')
| -rw-r--r-- | xorg-server/hw/xfree86/common/xf86Helper.c | 2959 |
1 files changed, 2959 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/common/xf86Helper.c b/xorg-server/hw/xfree86/common/xf86Helper.c new file mode 100644 index 000000000..282eb49f9 --- /dev/null +++ b/xorg-server/hw/xfree86/common/xf86Helper.c @@ -0,0 +1,2959 @@ +/* + * Copyright (c) 1997-2003 by The XFree86 Project, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Except as contained in this notice, the name of the copyright holder(s) + * and author(s) shall not be used in advertising or otherwise to promote + * the sale, use or other dealings in this Software without prior written + * authorization from the copyright holder(s) and author(s). + */ + +/* + * Authors: Dirk Hohndel <hohndel@XFree86.Org> + * David Dawes <dawes@XFree86.Org> + * ... and others + * + * This file includes the helper functions that the server provides for + * different drivers. + */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <pciaccess.h> +#include "Pci.h" + +#include <X11/X.h> +#include "os.h" +#include "servermd.h" +#include "pixmapstr.h" +#include "windowstr.h" +#include "propertyst.h" +#include "gcstruct.h" +#include "loaderProcs.h" +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" +#include "micmap.h" +#include "xf86PciInfo.h" +#include "xf86DDC.h" +#include "xf86Xinput.h" +#include "xf86InPriv.h" +#include "mivalidate.h" +#include "xf86RAC.h" +#include "xf86Bus.h" +#include "xf86Version.h" + +/* For xf86GetClocks */ +#if defined(CSRG_BASED) || defined(__GNU__) +#define HAS_SETPRIORITY +#include <sys/resource.h> +#endif + +static int xf86ScrnInfoPrivateCount = 0; + + +/* Add a pointer to a new DriverRec to xf86DriverList */ + +_X_EXPORT void +xf86AddDriver(DriverPtr driver, pointer module, int flags) +{ + /* Don't add null entries */ + if (!driver) + return; + + if (xf86DriverList == NULL) + xf86NumDrivers = 0; + + xf86NumDrivers++; + xf86DriverList = xnfrealloc(xf86DriverList, + xf86NumDrivers * sizeof(DriverPtr)); + xf86DriverList[xf86NumDrivers - 1] = xnfalloc(sizeof(DriverRec)); + if (flags & HaveDriverFuncs) + *xf86DriverList[xf86NumDrivers - 1] = *driver; + else { + (void) memset( xf86DriverList[xf86NumDrivers - 1], 0, + sizeof( DriverRec ) ); + (void) memcpy( xf86DriverList[xf86NumDrivers - 1], driver, + sizeof(DriverRec1)); + + } + xf86DriverList[xf86NumDrivers - 1]->module = module; + xf86DriverList[xf86NumDrivers - 1]->refCount = 0; +} + +_X_EXPORT void +xf86DeleteDriver(int drvIndex) +{ + if (xf86DriverList[drvIndex] + && (!xf86DriverHasEntities(xf86DriverList[drvIndex]))) { + if (xf86DriverList[drvIndex]->module) + UnloadModule(xf86DriverList[drvIndex]->module); + xfree(xf86DriverList[drvIndex]); + xf86DriverList[drvIndex] = NULL; + } +} + +/* Add a pointer to a new InputDriverRec to xf86InputDriverList */ + +_X_EXPORT void +xf86AddInputDriver(InputDriverPtr driver, pointer module, int flags) +{ + /* Don't add null entries */ + if (!driver) + return; + + if (xf86InputDriverList == NULL) + xf86NumInputDrivers = 0; + + xf86NumInputDrivers++; + xf86InputDriverList = xnfrealloc(xf86InputDriverList, + xf86NumInputDrivers * sizeof(InputDriverPtr)); + xf86InputDriverList[xf86NumInputDrivers - 1] = + xnfalloc(sizeof(InputDriverRec)); + *xf86InputDriverList[xf86NumInputDrivers - 1] = *driver; + xf86InputDriverList[xf86NumInputDrivers - 1]->module = module; + xf86InputDriverList[xf86NumInputDrivers - 1]->refCount = 0; +} + +void +xf86DeleteInputDriver(int drvIndex) +{ + if (xf86InputDriverList[drvIndex] && xf86InputDriverList[drvIndex]->module) + UnloadModule(xf86InputDriverList[drvIndex]->module); + xfree(xf86InputDriverList[drvIndex]); + xf86InputDriverList[drvIndex] = NULL; +} + +InputDriverPtr +xf86LookupInputDriver(const char *name) +{ + int i; + + for (i = 0; i < xf86NumInputDrivers; i++) { + if (xf86InputDriverList[i] && xf86InputDriverList[i]->driverName && + xf86NameCmp(name, xf86InputDriverList[i]->driverName) == 0) + return xf86InputDriverList[i]; + } + return NULL; +} + +InputInfoPtr +xf86LookupInput(const char *name) +{ + InputInfoPtr p; + + for (p = xf86InputDevs; p != NULL; p = p->next) { + if (strcmp(name, p->name) == 0) + return p; + } + + return NULL; +} + +/* ABI stubs of despair */ +_X_EXPORT void +xf86AddModuleInfo(pointer info, pointer module) +{ +} + +_X_EXPORT void +xf86DeleteModuleInfo(int idx) +{ +} + +/* Allocate a new ScrnInfoRec in xf86Screens */ + +_X_EXPORT ScrnInfoPtr +xf86AllocateScreen(DriverPtr drv, int flags) +{ + int i; + + if (xf86Screens == NULL) + xf86NumScreens = 0; + + i = xf86NumScreens++; + xf86Screens = xnfrealloc(xf86Screens, xf86NumScreens * sizeof(ScrnInfoPtr)); + xf86Screens[i] = xnfcalloc(sizeof(ScrnInfoRec), 1); + xf86Screens[i]->scrnIndex = i; /* Changes when a screen is removed */ + xf86Screens[i]->origIndex = i; /* This never changes */ + xf86Screens[i]->privates = xnfcalloc(sizeof(DevUnion), + xf86ScrnInfoPrivateCount); + /* + * EnableDisableFBAccess now gets initialized in InitOutput() + * xf86Screens[i]->EnableDisableFBAccess = xf86EnableDisableFBAccess; + */ + + xf86Screens[i]->drv = drv; + drv->refCount++; + xf86Screens[i]->module = DuplicateModule(drv->module, NULL); + /* + * set the initial access state. This will be modified after PreInit. + * XXX Or should we do it some other place? + */ + xf86Screens[i]->CurrentAccess = &xf86CurrentAccess; + xf86Screens[i]->resourceType = MEM_IO; + +#ifdef DEBUG + /* OOps -- What's this ? */ + ErrorF("xf86AllocateScreen - xf86Screens[%d]->pScreen = %p\n", + i, xf86Screens[i]->pScreen ); + if ( NULL != xf86Screens[i]->pScreen ) { + ErrorF("xf86Screens[%d]->pScreen->CreateWindow = %p\n", + i, xf86Screens[i]->pScreen->CreateWindow ); + } +#endif + + xf86Screens[i]->DriverFunc = drv->driverFunc; + + return xf86Screens[i]; +} + + +/* + * Remove an entry from xf86Screens. Ideally it should free all allocated + * data. To do this properly may require a driver hook. + */ + +_X_EXPORT void +xf86DeleteScreen(int scrnIndex, int flags) +{ + ScrnInfoPtr pScrn; + int i; + + /* First check if the screen is valid */ + if (xf86NumScreens == 0 || xf86Screens == NULL) + return; + + if (scrnIndex > xf86NumScreens - 1) + return; + + if (!(pScrn = xf86Screens[scrnIndex])) + return; + + /* If a FreeScreen function is defined, call it here */ + if (pScrn->FreeScreen != NULL) + pScrn->FreeScreen(scrnIndex, 0); + + while (pScrn->modes) + xf86DeleteMode(&pScrn->modes, pScrn->modes); + + while (pScrn->modePool) + xf86DeleteMode(&pScrn->modePool, pScrn->modePool); + + xf86OptionListFree(pScrn->options); + + if (pScrn->module) + UnloadModule(pScrn->module); + + if (pScrn->drv) + pScrn->drv->refCount--; + + if (pScrn->privates) + xfree(pScrn->privates); + + xf86ClearEntityListForScreen(scrnIndex); + + xfree(pScrn); + + /* Move the other entries down, updating their scrnIndex fields */ + + xf86NumScreens--; + + for (i = scrnIndex; i < xf86NumScreens; i++) { + xf86Screens[i] = xf86Screens[i + 1]; + xf86Screens[i]->scrnIndex = i; + /* Also need to take care of the screen layout settings */ + } +} + +/* + * Allocate a private in ScrnInfoRec. + */ + +_X_EXPORT int +xf86AllocateScrnInfoPrivateIndex(void) +{ + int idx, i; + ScrnInfoPtr pScr; + DevUnion *nprivs; + + idx = xf86ScrnInfoPrivateCount++; + for (i = 0; i < xf86NumScreens; i++) { + pScr = xf86Screens[i]; + nprivs = xnfrealloc(pScr->privates, + xf86ScrnInfoPrivateCount * sizeof(DevUnion)); + /* Zero the new private */ + bzero(&nprivs[idx], sizeof(DevUnion)); + pScr->privates = nprivs; + } + return idx; +} + +/* Allocate a new InputInfoRec and append it to the tail of xf86InputDevs. */ +_X_EXPORT InputInfoPtr +xf86AllocateInput(InputDriverPtr drv, int flags) +{ + InputInfoPtr new, *prev = NULL; + + if (!(new = xcalloc(sizeof(InputInfoRec), 1))) + return NULL; + + new->drv = drv; + drv->refCount++; + new->module = DuplicateModule(drv->module, NULL); + + for (prev = &xf86InputDevs; *prev; prev = &(*prev)->next) + ; + + *prev = new; + new->next = NULL; + + return new; +} + + +/* + * Remove an entry from xf86InputDevs. Ideally it should free all allocated + * data. To do this properly may require a driver hook. + */ + +_X_EXPORT void +xf86DeleteInput(InputInfoPtr pInp, int flags) +{ + InputInfoPtr p; + + /* First check if the inputdev is valid. */ + if (pInp == NULL) + return; + +#if 0 + /* If a free function is defined, call it here. */ + if (pInp->free) + pInp->free(pInp, 0); +#endif + + if (pInp->module) + UnloadModule(pInp->module); + + if (pInp->drv) + pInp->drv->refCount--; + + /* This should *really* be handled in drv->UnInit(dev) call instead */ +#if 0 + if (pInp->private) + xfree(pInp->private); +#endif + + /* Remove the entry from the list. */ + if (pInp == xf86InputDevs) + xf86InputDevs = pInp->next; + else { + p = xf86InputDevs; + while (p && p->next != pInp) + p = p->next; + if (p) + p->next = pInp->next; + /* Else the entry wasn't in the xf86InputDevs list (ignore this). */ + } + xfree(pInp); +} + +_X_EXPORT Bool +xf86AddPixFormat(ScrnInfoPtr pScrn, int depth, int bpp, int pad) +{ + int i; + + if (pScrn->numFormats >= MAXFORMATS) + return FALSE; + + if (bpp <= 0) { + if (depth == 1) + bpp = 1; + else if (depth <= 8) + bpp = 8; + else if (depth <= 16) + bpp = 16; + else if (depth <= 32) + bpp = 32; + else + return FALSE; + } + if (pad <= 0) + pad = BITMAP_SCANLINE_PAD; + + i = pScrn->numFormats++; + pScrn->formats[i].depth = depth; + pScrn->formats[i].bitsPerPixel = bpp; + pScrn->formats[i].scanlinePad = pad; + return TRUE; +} + +/* + * Set the depth we are using based on (in the following order of preference): + * - values given on the command line + * - values given in the config file + * - values provided by the driver + * - an overall default when nothing else is given + * + * Also find a Display subsection matching the depth/bpp found. + * + * Sets the following ScrnInfoRec fields: + * bitsPerPixel, pixmap24, depth, display, imageByteOrder, + * bitmapScanlinePad, bitmapScanlineUnit, bitmapBitOrder, numFormats, + * formats, fbFormat. + */ + +/* Can the screen handle 24 bpp pixmaps */ +#define DO_PIX24(f) ((f & Support24bppFb) || \ + ((f & Support32bppFb) && (f & SupportConvert24to32))) + +/* Can the screen handle 32 bpp pixmaps */ +#define DO_PIX32(f) ((f & Support32bppFb) || \ + ((f & Support24bppFb) && (f & SupportConvert32to24))) + +/* Does the screen prefer 32bpp fb for 24bpp pixmaps */ +#define CHOOSE32FOR24(f) ((f & Support32bppFb) && (f & SupportConvert24to32) \ + && (f & PreferConvert24to32)) + +/* Does the screen prefer 24bpp fb for 32bpp pixmaps */ +#define CHOOSE24FOR32(f) ((f & Support24bppFb) && (f & SupportConvert32to24) \ + && (f & PreferConvert32to24)) + +/* Can the screen handle 32bpp pixmaps for 24bpp fb */ +#define DO_PIX32FOR24(f) ((f & Support24bppFb) && (f & SupportConvert32to24)) + +/* Can the screen handle 24bpp pixmaps for 32bpp fb */ +#define DO_PIX24FOR32(f) ((f & Support32bppFb) && (f & SupportConvert24to32)) + +#ifndef GLOBAL_DEFAULT_DEPTH +#define GLOBAL_DEFAULT_DEPTH 24 +#endif + +#ifndef GLOBAL_DEFAULT_FBBPP +#define GLOBAL_DEFAULT_FBBPP 32 +#endif + +_X_EXPORT Bool +xf86SetDepthBpp(ScrnInfoPtr scrp, int depth, int dummy, int fbbpp, + int depth24flags) +{ + int i; + DispPtr disp; + Pix24Flags pix24 = xf86Info.pixmap24; + Bool nomatch = FALSE; + + scrp->bitsPerPixel = -1; + scrp->depth = -1; + scrp->pixmap24 = Pix24DontCare; + scrp->bitsPerPixelFrom = X_DEFAULT; + scrp->depthFrom = X_DEFAULT; + + if (xf86FbBpp > 0) { + scrp->bitsPerPixel = xf86FbBpp; + scrp->bitsPerPixelFrom = X_CMDLINE; + } + + if (xf86Depth > 0) { + scrp->depth = xf86Depth; + scrp->depthFrom = X_CMDLINE; + } + + if (xf86FbBpp < 0 && xf86Depth < 0) { + if (scrp->confScreen->defaultfbbpp > 0) { + scrp->bitsPerPixel = scrp->confScreen->defaultfbbpp; + scrp->bitsPerPixelFrom = X_CONFIG; + } + if (scrp->confScreen->defaultdepth > 0) { + scrp->depth = scrp->confScreen->defaultdepth; + scrp->depthFrom = X_CONFIG; + } + + if (scrp->confScreen->defaultfbbpp <= 0 && + scrp->confScreen->defaultdepth <= 0) { + /* + * Check for DefaultDepth and DefaultFbBpp options in the + * Device sections. + */ + int i; + GDevPtr device; + Bool found = FALSE; + + for (i = 0; i < scrp->numEntities; i++) { + device = xf86GetDevFromEntity(scrp->entityList[i], + scrp->entityInstanceList[i]); + if (device && device->options) { + if (xf86FindOption(device->options, "DefaultDepth")) { + scrp->depth = xf86SetIntOption(device->options, + "DefaultDepth", -1); + scrp->depthFrom = X_CONFIG; + found = TRUE; + } + if (xf86FindOption(device->options, "DefaultFbBpp")) { + scrp->bitsPerPixel = xf86SetIntOption(device->options, + "DefaultFbBpp", + -1); + scrp->bitsPerPixelFrom = X_CONFIG; + found = TRUE; + } + } + if (found) + break; + } + } + } + + /* If none of these is set, pick a default */ + if (scrp->bitsPerPixel < 0 && scrp->depth < 0) { + if (fbbpp > 0 || depth > 0) { + if (fbbpp > 0) + scrp->bitsPerPixel = fbbpp; + if (depth > 0) + scrp->depth = depth; + } else { + scrp->bitsPerPixel = GLOBAL_DEFAULT_FBBPP; + scrp->depth = GLOBAL_DEFAULT_DEPTH; + } + } + + /* If any are not given, determine a default for the others */ + + if (scrp->bitsPerPixel < 0) { + /* The depth must be set */ + if (scrp->depth > -1) { + if (scrp->depth == 1) + scrp->bitsPerPixel = 1; + else if (scrp->depth <= 4) + scrp->bitsPerPixel = 4; + else if (scrp->depth <= 8) + scrp->bitsPerPixel = 8; + else if (scrp->depth <= 16) + scrp->bitsPerPixel = 16; + else if (scrp->depth <= 24) { + /* + * Figure out if a choice is possible based on the depth24 + * and pix24 flags. + */ + /* Check pix24 first */ + if (pix24 != Pix24DontCare) { + if (pix24 == Pix24Use32) { + if (DO_PIX32(depth24flags)) { + if (CHOOSE24FOR32(depth24flags)) + scrp->bitsPerPixel = 24; + else + scrp->bitsPerPixel = 32; + } else { + nomatch = TRUE; + } + } else if (pix24 == Pix24Use24) { + if (DO_PIX24(depth24flags)) { + if (CHOOSE32FOR24(depth24flags)) + scrp->bitsPerPixel = 32; + else + scrp->bitsPerPixel = 24; + } else { + nomatch = TRUE; + } + } + } else { + if (DO_PIX32(depth24flags)) { + if (CHOOSE24FOR32(depth24flags)) + scrp->bitsPerPixel = 24; + else + scrp->bitsPerPixel = 32; + } else if (DO_PIX24(depth24flags)) { + if (CHOOSE32FOR24(depth24flags)) + scrp->bitsPerPixel = 32; + else + scrp->bitsPerPixel = 24; + } + } + } else if (scrp->depth <= 32) + scrp->bitsPerPixel = 32; + else { + xf86DrvMsg(scrp->scrnIndex, X_ERROR, + "Specified depth (%d) is greater than 32\n", + scrp->depth); + return FALSE; + } + } else { + xf86DrvMsg(scrp->scrnIndex, X_ERROR, + "xf86SetDepthBpp: internal error: depth and fbbpp" + " are both not set\n"); + return FALSE; + } + if (scrp->bitsPerPixel < 0) { + if (nomatch) + xf86DrvMsg(scrp->scrnIndex, X_ERROR, + "Driver can't support depth 24 pixmap format (%d)\n", + PIX24TOBPP(pix24)); + else if ((depth24flags & (Support24bppFb | Support32bppFb)) == + NoDepth24Support) + xf86DrvMsg(scrp->scrnIndex, X_ERROR, + "Driver can't support depth 24\n"); + else + xf86DrvMsg(scrp->scrnIndex, X_ERROR, + "Can't find fbbpp for depth 24\n"); + return FALSE; + } + scrp->bitsPerPixelFrom = X_PROBED; + } + + if (scrp->depth <= 0) { + /* bitsPerPixel is already set */ + switch (scrp->bitsPerPixel) { + case 32: + scrp->depth = 24; + break; + default: + /* 1, 4, 8, 16 and 24 */ + scrp->depth = scrp->bitsPerPixel; + break; + } + scrp->depthFrom = X_PROBED; + } + + /* Sanity checks */ + if (scrp->depth < 1 || scrp->depth > 32) { + xf86DrvMsg(scrp->scrnIndex, X_ERROR, + "Specified depth (%d) is not in the range 1-32\n", + scrp->depth); + return FALSE; + } + switch (scrp->bitsPerPixel) { + case 1: + case 4: + case 8: + case 16: + case 24: + case 32: + break; + default: + xf86DrvMsg(scrp->scrnIndex, X_ERROR, + "Specified fbbpp (%d) is not a permitted value\n", + scrp->bitsPerPixel); + return FALSE; + } + if (scrp->depth > scrp->bitsPerPixel) { + xf86DrvMsg(scrp->scrnIndex, X_ERROR, + "Specified depth (%d) is greater than the fbbpp (%d)\n", + scrp->depth, scrp->bitsPerPixel); + return FALSE; + } + + /* set scrp->pixmap24 if the driver isn't flexible */ + if (scrp->bitsPerPixel == 24 && !DO_PIX32FOR24(depth24flags)) { + scrp->pixmap24 = Pix24Use24; + } + if (scrp->bitsPerPixel == 32 && !DO_PIX24FOR32(depth24flags)) { + scrp->pixmap24 = Pix24Use32; + } + + /* + * Find the Display subsection matching the depth/fbbpp and initialise + * scrp->display with it. + */ + for (i = 0, disp = scrp->confScreen->displays; + i < scrp->confScreen->numdisplays; i++, disp++) { + if ((disp->depth == scrp->depth && disp->fbbpp == scrp->bitsPerPixel) + || (disp->depth == scrp->depth && disp->fbbpp <= 0) + || (disp->fbbpp == scrp->bitsPerPixel && disp->depth <= 0)) { + scrp->display = disp; + break; + } + } + + /* + * If an exact match can't be found, see if there is one with no + * depth or fbbpp specified. + */ + if (i == scrp->confScreen->numdisplays) { + for (i = 0, disp = scrp->confScreen->displays; + i < scrp->confScreen->numdisplays; i++, disp++) { + if (disp->depth <= 0 && disp->fbbpp <= 0) { + scrp->display = disp; + break; + } + } + } + + /* + * If all else fails, create a default one. + */ + if (i == scrp->confScreen->numdisplays) { + scrp->confScreen->numdisplays++; + scrp->confScreen->displays = + xnfrealloc(scrp->confScreen->displays, + scrp->confScreen->numdisplays * sizeof(DispRec)); + xf86DrvMsg(scrp->scrnIndex, X_INFO, + "Creating default Display subsection in Screen section\n" + "\t\"%s\" for depth/fbbpp %d/%d\n", + scrp->confScreen->id, scrp->depth, scrp->bitsPerPixel); + memset(&scrp->confScreen->displays[i], 0, sizeof(DispRec)); + scrp->confScreen->displays[i].blackColour.red = -1; + scrp->confScreen->displays[i].blackColour.green = -1; + scrp->confScreen->displays[i].blackColour.blue = -1; + scrp->confScreen->displays[i].whiteColour.red = -1; + scrp->confScreen->displays[i].whiteColour.green = -1; + scrp->confScreen->displays[i].whiteColour.blue = -1; + scrp->confScreen->displays[i].defaultVisual = -1; + scrp->confScreen->displays[i].modes = xnfalloc(sizeof(char *)); + scrp->confScreen->displays[i].modes[0] = NULL; + scrp->confScreen->displays[i].depth = depth; + scrp->confScreen->displays[i].fbbpp = fbbpp; + scrp->display = &scrp->confScreen->displays[i]; + } + + /* + * Setup defaults for the display-wide attributes the framebuffer will + * need. These defaults should eventually be set globally, and not + * dependent on the screens. + */ + scrp->imageByteOrder = IMAGE_BYTE_ORDER; + scrp->bitmapScanlinePad = BITMAP_SCANLINE_PAD; + if (scrp->depth < 8) { + /* Planar modes need these settings */ + scrp->bitmapScanlineUnit = 8; + scrp->bitmapBitOrder = MSBFirst; + } else { + scrp->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT; + scrp->bitmapBitOrder = BITMAP_BIT_ORDER; + } + + /* + * If an unusual depth is required, add it to scrp->formats. The formats + * for the common depths are handled globally in InitOutput + */ + switch (scrp->depth) { + case 1: + case 4: + case 8: + case 15: + case 16: + case 24: + /* Common depths. Nothing to do for them */ + break; + default: + if (!xf86AddPixFormat(scrp, scrp->depth, 0, 0)) { + xf86DrvMsg(scrp->scrnIndex, X_ERROR, + "Can't add pixmap format for depth %d\n", scrp->depth); + return FALSE; + } + } + + /* Initialise the framebuffer format for this screen */ + scrp->fbFormat.depth = scrp->depth; + scrp->fbFormat.bitsPerPixel = scrp->bitsPerPixel; + scrp->fbFormat.scanlinePad = BITMAP_SCANLINE_PAD; + + return TRUE; +} + +/* + * Print out the selected depth and bpp. + */ +_X_EXPORT void +xf86PrintDepthBpp(ScrnInfoPtr scrp) +{ + xf86DrvMsg(scrp->scrnIndex, scrp->depthFrom, "Depth %d, ", scrp->depth); + xf86Msg(scrp->bitsPerPixelFrom, "framebuffer bpp %d\n", scrp->bitsPerPixel); +} + +/* + * xf86SetWeight sets scrp->weight, scrp->mask, scrp->offset, and for depths + * greater than MAX_PSEUDO_DEPTH also scrp->rgbBits. + */ +_X_EXPORT Bool +xf86SetWeight(ScrnInfoPtr scrp, rgb weight, rgb mask) +{ + MessageType weightFrom = X_DEFAULT; + + scrp->weight.red = 0; + scrp->weight.green = 0; + scrp->weight.blue = 0; + + if (xf86Weight.red > 0 && xf86Weight.green > 0 && xf86Weight.blue > 0) { + scrp->weight = xf86Weight; + weightFrom = X_CMDLINE; + } else if (scrp->display->weight.red > 0 && scrp->display->weight.green > 0 + && scrp->display->weight.blue > 0) { + scrp->weight = scrp->display->weight; + weightFrom = X_CONFIG; + } else if (weight.red > 0 && weight.green > 0 && weight.blue > 0) { + scrp->weight = weight; + } else { + switch (scrp->depth) { + case 1: + case 4: + case 8: + scrp->weight.red = scrp->weight.green = + scrp->weight.blue = scrp->rgbBits; + break; + case 15: + scrp->weight.red = scrp->weight.green = scrp->weight.blue = 5; + break; + case 16: + scrp->weight.red = scrp->weight.blue = 5; + scrp->weight.green = 6; + break; + case 24: + scrp->weight.red = scrp->weight.green = scrp->weight.blue = 8; + break; + case 30: + scrp->weight.red = scrp->weight.green = scrp->weight.blue = 10; + break; + } + } + + if (scrp->weight.red) + xf86DrvMsg(scrp->scrnIndex, weightFrom, "RGB weight %d%d%d\n", + (int)scrp->weight.red, (int)scrp->weight.green, + (int)scrp->weight.blue); + + if (scrp->depth > MAX_PSEUDO_DEPTH && + (scrp->depth != scrp->weight.red + scrp->weight.green + + scrp->weight.blue)) { + xf86DrvMsg(scrp->scrnIndex, X_ERROR, + "Weight given (%d%d%d) is inconsistent with the " + "depth (%d)\n", + (int)scrp->weight.red, (int)scrp->weight.green, + (int)scrp->weight.blue, scrp->depth); + return FALSE; + } + if (scrp->depth > MAX_PSEUDO_DEPTH && scrp->weight.red) { + /* + * XXX Does this even mean anything for TrueColor visuals? + * If not, we shouldn't even be setting it here. However, this + * matches the behaviour of 3.x versions of XFree86. + */ + scrp->rgbBits = scrp->weight.red; + if (scrp->weight.green > scrp->rgbBits) + scrp->rgbBits = scrp->weight.green; + if (scrp->weight.blue > scrp->rgbBits) + scrp->rgbBits = scrp->weight.blue; + } + + /* Set the mask and offsets */ + if (mask.red == 0 || mask.green == 0 || mask.blue == 0) { + /* Default to a setting common to PC hardware */ + scrp->offset.red = scrp->weight.green + scrp->weight.blue; + scrp->offset.green = scrp->weight.blue; + scrp->offset.blue = 0; + scrp->mask.red = ((1 << scrp->weight.red) - 1) << scrp->offset.red; + scrp->mask.green = ((1 << scrp->weight.green) - 1) + << scrp->offset.green; + scrp->mask.blue = (1 << scrp->weight.blue) - 1; + } else { + /* Initialise to the values passed */ + scrp->mask.red = mask.red; + scrp->mask.green = mask.green; + scrp->mask.blue = mask.blue; + scrp->offset.red = ffs(mask.red); + scrp->offset.green = ffs(mask.green); + scrp->offset.blue = ffs(mask.blue); + } + return TRUE; +} + +_X_EXPORT Bool +xf86SetDefaultVisual(ScrnInfoPtr scrp, int visual) +{ + MessageType visualFrom = X_DEFAULT; + + if (defaultColorVisualClass >= 0) { + scrp->defaultVisual = defaultColorVisualClass; + visualFrom = X_CMDLINE; + } else if (scrp->display->defaultVisual >= 0) { + scrp->defaultVisual = scrp->display->defaultVisual; + visualFrom = X_CONFIG; + } else if (visual >= 0) { + scrp->defaultVisual = visual; + } else { + if (scrp->depth == 1) + scrp->defaultVisual = StaticGray; + else if (scrp->depth == 4) + scrp->defaultVisual = StaticColor; + else if (scrp->depth <= MAX_PSEUDO_DEPTH) + scrp->defaultVisual = PseudoColor; + else + scrp->defaultVisual = TrueColor; + } + switch (scrp->defaultVisual) { + case StaticGray: + case GrayScale: + case StaticColor: + case PseudoColor: + case TrueColor: + case DirectColor: + xf86DrvMsg(scrp->scrnIndex, visualFrom, "Default visual is %s\n", + xf86VisualNames[scrp->defaultVisual]); + return TRUE; + default: + + xf86DrvMsg(scrp->scrnIndex, X_ERROR, + "Invalid default visual class (%d)\n", scrp->defaultVisual); + return FALSE; + } +} + +#define TEST_GAMMA(g) \ + (g).red > GAMMA_ZERO || (g).green > GAMMA_ZERO || (g).blue > GAMMA_ZERO + +#define SET_GAMMA(g) \ + (g) > GAMMA_ZERO ? (g) : 1.0 + +_X_EXPORT Bool +xf86SetGamma(ScrnInfoPtr scrp, Gamma gamma) +{ + MessageType from = X_DEFAULT; +#if 0 + xf86MonPtr DDC = (xf86MonPtr)(scrp->monitor->DDC); +#endif + if (TEST_GAMMA(xf86Gamma)) { + from = X_CMDLINE; + scrp->gamma.red = SET_GAMMA(xf86Gamma.red); + scrp->gamma.green = SET_GAMMA(xf86Gamma.green); + scrp->gamma.blue = SET_GAMMA(xf86Gamma.blue); + } else if (TEST_GAMMA(scrp->monitor->gamma)) { + from = X_CONFIG; + scrp->gamma.red = SET_GAMMA(scrp->monitor->gamma.red); + scrp->gamma.green = SET_GAMMA(scrp->monitor->gamma.green); + scrp->gamma.blue = SET_GAMMA(scrp->monitor->gamma.blue); +#if 0 + } else if ( DDC && DDC->features.gamma > GAMMA_ZERO ) { + from = X_PROBED; + scrp->gamma.red = SET_GAMMA(DDC->features.gamma); + scrp->gamma.green = SET_GAMMA(DDC->features.gamma); + scrp->gamma.blue = SET_GAMMA(DDC->features.gamma); + /* EDID structure version 2 gives optional seperate red, green & blue gamma values + * in bytes 0x57-0x59 */ +#endif + } else if (TEST_GAMMA(gamma)) { + scrp->gamma.red = SET_GAMMA(gamma.red); + scrp->gamma.green = SET_GAMMA(gamma.green); + scrp->gamma.blue = SET_GAMMA(gamma.blue); + } else { + scrp->gamma.red = 1.0; + scrp->gamma.green = 1.0; + scrp->gamma.blue = 1.0; + } + xf86DrvMsg(scrp->scrnIndex, from, + "Using gamma correction (%.1f, %.1f, %.1f)\n", + scrp->gamma.red, scrp->gamma.green, scrp->gamma.blue); + + return TRUE; +} + +#undef TEST_GAMMA +#undef SET_GAMMA + + +/* + * Set the DPI from the command line option. XXX should allow it to be + * calculated from the widthmm/heightmm values. + */ + +#undef MMPERINCH +#define MMPERINCH 25.4 + +_X_EXPORT void +xf86SetDpi(ScrnInfoPtr pScrn, int x, int y) +{ + MessageType from = X_DEFAULT; + xf86MonPtr DDC = (xf86MonPtr)(pScrn->monitor->DDC); + int ddcWidthmm, ddcHeightmm; + int widthErr, heightErr; + + /* XXX Maybe there is no need for widthmm/heightmm in ScrnInfoRec */ + pScrn->widthmm = pScrn->monitor->widthmm; + pScrn->heightmm = pScrn->monitor->heightmm; + + if (DDC && (DDC->features.hsize > 0 && DDC->features.vsize > 0) ) { + /* DDC gives display size in mm for individual modes, + * but cm for monitor + */ + ddcWidthmm = DDC->features.hsize * 10; /* 10mm in 1cm */ + ddcHeightmm = DDC->features.vsize * 10; /* 10mm in 1cm */ + } else { + ddcWidthmm = ddcHeightmm = 0; + } + + if (monitorResolution > 0) { + pScrn->xDpi = monitorResolution; + pScrn->yDpi = monitorResolution; + from = X_CMDLINE; + } else if (pScrn->widthmm > 0 || pScrn->heightmm > 0) { + from = X_CONFIG; + if (pScrn->widthmm > 0) { + pScrn->xDpi = + (int)((double)pScrn->virtualX * MMPERINCH / pScrn->widthmm); + } + if (pScrn->heightmm > 0) { + pScrn->yDpi = + (int)((double)pScrn->virtualY * MMPERINCH / pScrn->heightmm); + } + if (pScrn->xDpi > 0 && pScrn->yDpi <= 0) + pScrn->yDpi = pScrn->xDpi; + if (pScrn->yDpi > 0 && pScrn->xDpi <= 0) + pScrn->xDpi = pScrn->yDpi; + xf86DrvMsg(pScrn->scrnIndex, from, "Display dimensions: (%d, %d) mm\n", + pScrn->widthmm, pScrn->heightmm); + + /* Warn if config and probe disagree about display size */ + if ( ddcWidthmm && ddcHeightmm ) { + if (pScrn->widthmm > 0) { + widthErr = abs(ddcWidthmm - pScrn->widthmm); + } else { + widthErr = 0; + } + if (pScrn->heightmm > 0) { + heightErr = abs(ddcHeightmm - pScrn->heightmm); + } else { + heightErr = 0; + } + if (widthErr>10 || heightErr>10) { + /* Should include config file name for monitor here */ + xf86DrvMsg(pScrn->scrnIndex, X_WARNING, + "Probed monitor is %dx%d mm, using Displaysize %dx%d mm\n", + ddcWidthmm,ddcHeightmm, pScrn->widthmm,pScrn->heightmm); + } + } + } else if ( ddcWidthmm && ddcHeightmm ) { + from = X_PROBED; + xf86DrvMsg(pScrn->scrnIndex, from, "Display dimensions: (%d, %d) mm\n", + ddcWidthmm, ddcHeightmm ); + pScrn->widthmm = ddcWidthmm; + pScrn->heightmm = ddcHeightmm; + if (pScrn->widthmm > 0) { + pScrn->xDpi = + (int)((double)pScrn->virtualX * MMPERINCH / pScrn->widthmm); + } + if (pScrn->heightmm > 0) { + pScrn->yDpi = + (int)((double)pScrn->virtualY * MMPERINCH / pScrn->heightmm); + } + if (pScrn->xDpi > 0 && pScrn->yDpi <= 0) + pScrn->yDpi = pScrn->xDpi; + if (pScrn->yDpi > 0 && pScrn->xDpi <= 0) + pScrn->xDpi = pScrn->yDpi; + } else { + if (x > 0) + pScrn->xDpi = x; + else + pScrn->xDpi = DEFAULT_DPI; + if (y > 0) + pScrn->yDpi = y; + else + pScrn->yDpi = DEFAULT_DPI; + } + xf86DrvMsg(pScrn->scrnIndex, from, "DPI set to (%d, %d)\n", + pScrn->xDpi, pScrn->yDpi); +} + +#undef MMPERINCH + + +_X_EXPORT void +xf86SetBlackWhitePixels(ScreenPtr pScreen) +{ + if (xf86FlipPixels) { + pScreen->whitePixel = 0; + pScreen->blackPixel = 1; + } else { + pScreen->whitePixel = 1; + pScreen->blackPixel = 0; + } +} + +/* + * xf86SetRootClip -- + * Enable or disable rendering to the screen by + * setting the root clip list and revalidating + * all of the windows + */ + +static void +xf86SetRootClip (ScreenPtr pScreen, Bool enable) +{ + WindowPtr pWin = WindowTable[pScreen->myNum]; + WindowPtr pChild; + Bool WasViewable = (Bool)(pWin->viewable); + Bool anyMarked = FALSE; +#ifdef DO_SAVE_UNDERS + Bool dosave = FALSE; +#endif + WindowPtr pLayerWin; + BoxRec box; + + if (WasViewable) + { + for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) + { + (void) (*pScreen->MarkOverlappedWindows)(pChild, + pChild, + &pLayerWin); + } + (*pScreen->MarkWindow) (pWin); + anyMarked = TRUE; + if (pWin->valdata) + { + if (HasBorder (pWin)) + { + RegionPtr borderVisible; + + borderVisible = REGION_CREATE(pScreen, NullBox, 1); + REGION_SUBTRACT(pScreen, borderVisible, + &pWin->borderClip, &pWin->winSize); + pWin->valdata->before.borderVisible = borderVisible; + } + pWin->valdata->before.resized = TRUE; + } + } + + /* + * Use REGION_BREAK to avoid optimizations in ValidateTree + * that assume the root borderClip can't change well, normally + * it doesn't...) + */ + if (enable) + { + box.x1 = 0; + box.y1 = 0; + box.x2 = pScreen->width; + box.y2 = pScreen->height; + REGION_INIT (pScreen, &pWin->winSize, &box, 1); + REGION_INIT (pScreen, &pWin->borderSize, &box, 1); + if (WasViewable) + REGION_RESET(pScreen, &pWin->borderClip, &box); + pWin->drawable.width = pScreen->width; + pWin->drawable.height = pScreen->height; + REGION_BREAK (pWin->drawable.pScreen, &pWin->clipList); + } + else + { + REGION_EMPTY(pScreen, &pWin->borderClip); + REGION_BREAK (pWin->drawable.pScreen, &pWin->clipList); + } + + ResizeChildrenWinSize (pWin, 0, 0, 0, 0); + + if (WasViewable) + { + if (pWin->firstChild) + { + anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin->firstChild, + pWin->firstChild, + (WindowPtr *)NULL); + } + else + { + (*pScreen->MarkWindow) (pWin); + anyMarked = TRUE; + } + +#ifdef DO_SAVE_UNDERS + if (DO_SAVE_UNDERS(pWin)) + { + dosave = (*pScreen->ChangeSaveUnder)(pLayerWin, pLayerWin); + } +#endif /* DO_SAVE_UNDERS */ + + if (anyMarked) + (*pScreen->ValidateTree)(pWin, NullWindow, VTOther); + } + + if (WasViewable) + { + if (anyMarked) + (*pScreen->HandleExposures)(pWin); +#ifdef DO_SAVE_UNDERS + if (dosave) + (*pScreen->PostChangeSaveUnder)(pLayerWin, pLayerWin); +#endif /* DO_SAVE_UNDERS */ + if (anyMarked && pScreen->PostValidateTree) + (*pScreen->PostValidateTree)(pWin, NullWindow, VTOther); + } + if (pWin->realized) + WindowsRestructured (); + FlushAllOutput (); +} + +/* + * Function to enable/disable access to the frame buffer + * + * This is used when VT switching and when entering/leaving DGA direct mode. + * + * This has been rewritten again to eliminate the saved pixmap. The + * devPrivate field in the screen pixmap is set to NULL to catch code + * accidentally referencing the frame buffer while the X server is not + * supposed to touch it. + * + * Here, we exchange the pixmap private data, rather than the pixmaps + * themselves to avoid having to find and change any references to the screen + * pixmap such as GC's, window privates etc. This also means that this code + * does not need to know exactly how the pixmap pixels are accessed. Further, + * this exchange is >not< done through the screen's ModifyPixmapHeader() + * vector. This means the called frame buffer code layers can determine + * whether they are switched in or out by keeping track of the root pixmap's + * private data, and therefore don't need to access pScrnInfo->vtSema. + */ +_X_EXPORT void +xf86EnableDisableFBAccess(int scrnIndex, Bool enable) +{ + ScrnInfoPtr pScrnInfo = xf86Screens[scrnIndex]; + ScreenPtr pScreen = pScrnInfo->pScreen; + PixmapPtr pspix; + + pspix = (*pScreen->GetScreenPixmap) (pScreen); + if (enable) + { + /* + * Restore the screen pixmap devPrivate field + */ + pspix->devPrivate = pScrnInfo->pixmapPrivate; + /* + * Restore all of the clip lists on the screen + */ + if (!xf86Resetting) + xf86SetRootClip (pScreen, TRUE); + + } + else + { + /* + * Empty all of the clip lists on the screen + */ + xf86SetRootClip (pScreen, FALSE); + /* + * save the screen pixmap devPrivate field and + * replace it with NULL so accidental references + * to the frame buffer are caught + */ + pScrnInfo->pixmapPrivate = pspix->devPrivate; + pspix->devPrivate.ptr = NULL; + } +} + +/* Print driver messages in the standard format */ + +#undef PREFIX_SIZE +#define PREFIX_SIZE 14 + +_X_EXPORT void +xf86VDrvMsgVerb(int scrnIndex, MessageType type, int verb, const char *format, + va_list args) +{ + char *tmpFormat; + + /* Prefix the scrnIndex name to the format string. */ + if (scrnIndex >= 0 && scrnIndex < xf86NumScreens && + xf86Screens[scrnIndex]->name) { + tmpFormat = xalloc(strlen(format) + + strlen(xf86Screens[scrnIndex]->name) + + PREFIX_SIZE + 1); + if (!tmpFormat) + return; + + snprintf(tmpFormat, PREFIX_SIZE + 1, "%s(%d): ", + xf86Screens[scrnIndex]->name, scrnIndex); + + strcat(tmpFormat, format); + LogVMessageVerb(type, verb, tmpFormat, args); + xfree(tmpFormat); + } else + LogVMessageVerb(type, verb, format, args); +} +#undef PREFIX_SIZE + +/* Print driver messages, with verbose level specified directly */ +_X_EXPORT void +xf86DrvMsgVerb(int scrnIndex, MessageType type, int verb, const char *format, + ...) +{ + va_list ap; + + va_start(ap, format); + xf86VDrvMsgVerb(scrnIndex, type, verb, format, ap); + va_end(ap); +} + +/* Print driver messages, with verbose level of 1 (default) */ +_X_EXPORT void +xf86DrvMsg(int scrnIndex, MessageType type, const char *format, ...) +{ + va_list ap; + + va_start(ap, format); + xf86VDrvMsgVerb(scrnIndex, type, 1, format, ap); + va_end(ap); +} + +/* Print non-driver messages with verbose level specified directly */ +_X_EXPORT void +xf86MsgVerb(MessageType type, int verb, const char *format, ...) +{ + va_list ap; + + va_start(ap, format); + xf86VDrvMsgVerb(-1, type, verb, format, ap); + va_end(ap); +} + +/* Print non-driver messages with verbose level of 1 (default) */ +_X_EXPORT void +xf86Msg(MessageType type, const char *format, ...) +{ + va_list ap; + + va_start(ap, format); + xf86VDrvMsgVerb(-1, type, 1, format, ap); + va_end(ap); +} + +/* Just like ErrorF, but with the verbose level checked */ +_X_EXPORT void +xf86ErrorFVerb(int verb, const char *format, ...) +{ + va_list ap; + + va_start(ap, format); + if (xf86Verbose >= verb || xf86LogVerbose >= verb) + LogVWrite(verb, format, ap); + va_end(ap); +} + +/* Like xf86ErrorFVerb, but with an implied verbose level of 1 */ +_X_EXPORT void +xf86ErrorF(const char *format, ...) +{ + va_list ap; + + va_start(ap, format); + if (xf86Verbose >= 1 || xf86LogVerbose >= 1) + LogVWrite(1, format, ap); + va_end(ap); +} + + +void +xf86LogInit() +{ + char *lf = NULL; + +#define LOGSUFFIX ".log" +#define LOGOLDSUFFIX ".old" + + /* Get the log file name */ + if (xf86LogFileFrom == X_DEFAULT) { + /* Append the display number and ".log" */ + lf = malloc(strlen(xf86LogFile) + strlen("%s") + + strlen(LOGSUFFIX) + 1); + if (!lf) + FatalError("Cannot allocate space for the log file name\n"); + sprintf(lf, "%s%%s" LOGSUFFIX, xf86LogFile); + xf86LogFile = lf; + } + + xf86LogFile = LogInit(xf86LogFile, LOGOLDSUFFIX); + xf86LogFileWasOpened = TRUE; + + xf86SetVerbosity(xf86Verbose); + xf86SetLogVerbosity(xf86LogVerbose); + +#undef LOGSUFFIX +#undef LOGOLDSUFFIX + + free(lf); +} + +void +xf86CloseLog() +{ + LogClose(); +} + + +/* + * Drivers can use these for using their own SymTabRecs. + */ + +_X_EXPORT const char * +xf86TokenToString(SymTabPtr table, int token) +{ + int i; + + for (i = 0; table[i].token >= 0 && table[i].token != token; i++) + ; + + if (table[i].token < 0) + return NULL; + else + return(table[i].name); +} + +_X_EXPORT int +xf86StringToToken(SymTabPtr table, const char *string) +{ + int i; + + if (string == NULL) + return -1; + + for (i = 0; table[i].token >= 0 && xf86NameCmp(string, table[i].name); i++) + ; + + return(table[i].token); +} + +/* + * helper to display the clocks found on a card + */ +_X_EXPORT void +xf86ShowClocks(ScrnInfoPtr scrp, MessageType from) +{ + int j; + + xf86DrvMsg(scrp->scrnIndex, from, "Pixel clocks available:"); + for (j=0; j < scrp->numClocks; j++) { + if ((j % 4) == 0) { + xf86ErrorF("\n"); + xf86DrvMsg(scrp->scrnIndex, from, "pixel clocks:"); + } + xf86ErrorF(" %7.3f", (double)scrp->clock[j] / 1000.0); + } + xf86ErrorF("\n"); +} + + +/* + * This prints out the driver identify message, including the names of + * the supported chipsets. + * + * XXX This makes assumptions about the line width, etc. Maybe we could + * use a more general "pretty print" function for messages. + */ +_X_EXPORT void +xf86PrintChipsets(const char *drvname, const char *drvmsg, SymTabPtr chips) +{ + int len, i; + + len = 6 + strlen(drvname) + 2 + strlen(drvmsg) + 2; + xf86Msg(X_INFO, "%s: %s:", drvname, drvmsg); + for (i = 0; chips[i].name != NULL; i++) { + if (i != 0) { + xf86ErrorF(","); + len++; + } + if (len + 2 + strlen(chips[i].name) < 78) { + xf86ErrorF(" "); + len++; + } else { + xf86ErrorF("\n\t"); + len = 8; + } + xf86ErrorF("%s", chips[i].name); + len += strlen(chips[i].name); + } + xf86ErrorF("\n"); +} + + +_X_EXPORT int +xf86MatchDevice(const char *drivername, GDevPtr **sectlist) +{ + GDevPtr gdp, *pgdp = NULL; + confScreenPtr screensecptr; + int i,j; + + if (sectlist) + *sectlist = NULL; + + if (xf86DoModalias) return 0; + + if (xf86DoProbe) return 1; + + if (xf86DoConfigure && xf86DoConfigurePass1) return 1; + + /* + * This is a very important function that matches the device sections + * as they show up in the config file with the drivers that the server + * loads at run time. + * + * ChipProbe can call + * int xf86MatchDevice(char * drivername, GDevPtr ** sectlist) + * with its driver name. The function allocates an array of GDevPtr and + * returns this via sectlist and returns the number of elements in + * this list as return value. 0 means none found, -1 means fatal error. + * + * It can figure out which of the Device sections to use for which card + * (using things like the Card statement, etc). For single headed servers + * there will of course be just one such Device section. + */ + i = 0; + + /* + * first we need to loop over all the Screens sections to get to all + * 'active' device sections + */ + for (j=0; xf86ConfigLayout.screens[j].screen != NULL; j++) { + screensecptr = xf86ConfigLayout.screens[j].screen; + if ((screensecptr->device->driver != NULL) + && (xf86NameCmp( screensecptr->device->driver,drivername) == 0) + && (! screensecptr->device->claimed)) { + /* + * we have a matching driver that wasn't claimed, yet + */ + pgdp = xnfrealloc(pgdp, (i + 2) * sizeof(GDevPtr)); + pgdp[i++] = screensecptr->device; + } + } + + /* Then handle the inactive devices */ + j = 0; + while (xf86ConfigLayout.inactives[j].identifier) { + gdp = &xf86ConfigLayout.inactives[j]; + if (gdp->driver && !gdp->claimed && + !xf86NameCmp(gdp->driver,drivername)) { + /* we have a matching driver that wasn't claimed yet */ + pgdp = xnfrealloc(pgdp, (i + 2) * sizeof(GDevPtr)); + pgdp[i++] = gdp; + } + j++; + } + + /* + * make the array NULL terminated and return its address + */ + if (i) + pgdp[i] = NULL; + + if (sectlist) + *sectlist = pgdp; + else + xfree(pgdp); + return i; +} + +struct Inst { + struct pci_device * pci; + GDevPtr dev; + Bool foundHW; /* PCIid in list of supported chipsets */ + Bool claimed; /* BusID matches with a device section */ + int chip; + int screen; +}; + + +/** + * Find set of unclaimed devices matching a given vendor ID. + * + * Used by drivers to find as yet unclaimed devices matching the specified + * vendor ID. + * + * \param driverName Name of the driver. This is used to find Device + * sections in the config file. + * \param vendorID PCI vendor ID of associated devices. If zero, then + * the true vendor ID must be encoded in the \c PCIid + * fields of the \c PCIchipsets entries. + * \param chipsets Symbol table used to associate chipset names with + * PCI IDs. + * \param devList List of Device sections parsed from the config file. + * \param numDevs Number of entries in \c devList. + * \param drvp Pointer the driver's control structure. + * \param foundEntities Returned list of entity indicies associated with the + * driver. + * + * \returns + * The number of elements in returned in \c foundEntities on success or zero + * on failure. + * + * \todo + * This function does a bit more than short description says. Fill in some + * more of the details of its operation. + * + * \todo + * The \c driverName parameter is redundant. It is the same as + * \c DriverRec::driverName. In a future version of this function, remove + * that parameter. + */ +_X_EXPORT int +xf86MatchPciInstances(const char *driverName, int vendorID, + SymTabPtr chipsets, PciChipsets *PCIchipsets, + GDevPtr *devList, int numDevs, DriverPtr drvp, + int **foundEntities) +{ + int i,j; + struct pci_device * pPci; + struct pci_device_iterator *iter; + struct Inst *instances = NULL; + int numClaimedInstances = 0; + int allocatedInstances = 0; + int numFound = 0; + SymTabRec *c; + PciChipsets *id; + int *retEntities = NULL; + + *foundEntities = NULL; + + + /* Each PCI device will contribute at least one entry. Each device + * section can contribute at most one entry. The sum of the two is + * guaranteed to be larger than the maximum possible number of entries. + * Do this calculation and memory allocation once now to eliminate the + * need for realloc calls inside the loop. + */ + if ( !xf86DoProbe && !(xf86DoConfigure && xf86DoConfigurePass1) ) { + unsigned max_entries = numDevs; + + iter = pci_slot_match_iterator_create(NULL); + while ((pPci = pci_device_next(iter)) != NULL) { + max_entries++; + } + + pci_iterator_destroy(iter); + instances = xnfalloc(max_entries * sizeof(struct Inst)); + } + + iter = pci_slot_match_iterator_create(NULL); + while ((pPci = pci_device_next(iter)) != NULL) { + unsigned device_class = pPci->device_class; + Bool foundVendor = FALSE; + + + /* Convert the pre-PCI 2.0 device class for a VGA adapter to the + * 2.0 version of the same class. + */ + if ( device_class == 0x00000101 ) { + device_class = 0x00030000; + } + + + /* Find PCI devices that match the given vendor ID. The vendor ID is + * either specified explicitly as a parameter to the function or + * implicitly encoded in the high bits of id->PCIid. + * + * The first device with a matching vendor is recorded, even if the + * device ID doesn't match. This is done because the Device section + * in the xorg.conf file can over-ride the device ID. A matching PCI + * ID might not be found now, but after the device ID over-ride is + * applied there /might/ be a match. + */ + for (id = PCIchipsets; id->PCIid != -1; id++) { + const unsigned vendor_id = ((id->PCIid & 0xFFFF0000) >> 16) + | vendorID; + const unsigned device_id = (id->PCIid & 0x0000FFFF); + const unsigned match_class = 0x00030000 | id->PCIid; + + if ((vendor_id == pPci->vendor_id) + || ((vendorID == PCI_VENDOR_GENERIC) && (match_class == device_class))) { + if (!foundVendor && (instances != NULL)) { + ++allocatedInstances; + instances[allocatedInstances - 1].pci = pPci; + instances[allocatedInstances - 1].dev = NULL; + instances[allocatedInstances - 1].claimed = FALSE; + instances[allocatedInstances - 1].foundHW = FALSE; + instances[allocatedInstances - 1].screen = 0; + } + + foundVendor = TRUE; + + if ( (device_id == pPci->device_id) + || ((vendorID == PCI_VENDOR_GENERIC) + && (match_class == device_class)) ) { + if ( instances != NULL ) { + instances[allocatedInstances - 1].foundHW = TRUE; + instances[allocatedInstances - 1].chip = id->numChipset; + } + + + if ( xf86DoConfigure && xf86DoConfigurePass1 ) { + if (xf86CheckPciSlot(pPci)) { + GDevPtr pGDev = + xf86AddDeviceToConfigure(drvp->driverName, + pPci, -1); + if (pGDev) { + /* After configure pass 1, chipID and chipRev + * are treated as over-rides, so clobber them + * here. + */ + pGDev->chipID = -1; + pGDev->chipRev = -1; + } + + numFound++; + } + } + else { + numFound++; + } + + break; + } + } + } + } + + pci_iterator_destroy(iter); + + + /* In "probe only" or "configure" mode (signaled by instances being NULL), + * our work is done. Return the number of detected devices. + */ + if ( instances == NULL ) { + return numFound; + } + + + /* + * This may be debatable, but if no PCI devices with a matching vendor + * type is found, return zero now. It is probably not desirable to + * allow the config file to override this. + */ + if (allocatedInstances <= 0) { + xfree(instances); + return 0; + } + + +#ifdef DEBUG + ErrorF("%s instances found: %d\n", driverName, allocatedInstances); +#endif + + /* + * Check for devices that need duplicated instances. This is required + * when there is more than one screen per entity. + * + * XXX This currently doesn't work for cases where the BusID isn't + * specified explicitly in the config file. + */ + + for (j = 0; j < numDevs; j++) { + if (devList[j]->screen > 0 && devList[j]->busID + && *devList[j]->busID) { + for (i = 0; i < allocatedInstances; i++) { + pPci = instances[i].pci; + if (xf86ComparePciBusString(devList[j]->busID, + PCI_MAKE_BUS( pPci->domain, pPci->bus ), + pPci->dev, + pPci->func)) { + allocatedInstances++; + instances[allocatedInstances - 1] = instances[i]; + instances[allocatedInstances - 1].screen = + devList[j]->screen; + numFound++; + break; + } + } + } + } + + for (i = 0; i < allocatedInstances; i++) { + GDevPtr dev = NULL; + GDevPtr devBus = NULL; + + pPci = instances[i].pci; + for (j = 0; j < numDevs; j++) { + if (devList[j]->busID && *devList[j]->busID) { + if (xf86ComparePciBusString(devList[j]->busID, + PCI_MAKE_BUS( pPci->domain, pPci->bus ), + pPci->dev, + pPci->func) && + devList[j]->screen == instances[i].screen) { + + if (devBus) + xf86MsgVerb(X_WARNING,0, + "%s: More than one matching Device section for " + "instances\n\t(BusID: %s) found: %s\n", + driverName, devList[j]->busID, + devList[j]->identifier); + else + devBus = devList[j]; + } + } else { + /* + * if device section without BusID is found + * only assign to it to the primary device. + */ + if (xf86IsPrimaryPci(pPci)) { + xf86Msg(X_PROBED, "Assigning device section with no busID" + " to primary device\n"); + if (dev || devBus) + xf86MsgVerb(X_WARNING, 0, + "%s: More than one matching Device section " + "found: %s\n", driverName, devList[j]->identifier); + else + dev = devList[j]; + } + } + } + if (devBus) dev = devBus; /* busID preferred */ + if (!dev) { + if ( xf86CheckPciSlot( pPci ) ) { + xf86MsgVerb(X_WARNING, 0, "%s: No matching Device section " + "for instance (BusID PCI:%u@%u:%u:%u) found\n", + driverName, pPci->domain, pPci->bus, pPci->dev, + pPci->func); + } + } else { + numClaimedInstances++; + instances[i].claimed = TRUE; + instances[i].dev = dev; + } + } +#ifdef DEBUG + ErrorF("%s instances found: %d\n", driverName, numClaimedInstances); +#endif + /* + * Now check that a chipset or chipID override in the device section + * is valid. Chipset has precedence over chipID. + * If chipset is not valid ignore BusSlot completely. + */ + for (i = 0; i < allocatedInstances && numClaimedInstances > 0; i++) { + MessageType from = X_PROBED; + + if (!instances[i].claimed) { + continue; + } + if (instances[i].dev->chipset) { + for (c = chipsets; c->token >= 0; c++) { + if (xf86NameCmp(c->name, instances[i].dev->chipset) == 0) + break; + } + if (c->token == -1) { + instances[i].claimed = FALSE; + numClaimedInstances--; + xf86MsgVerb(X_WARNING, 0, "%s: Chipset \"%s\" in Device " + "section \"%s\" isn't valid for this driver\n", + driverName, instances[i].dev->chipset, + instances[i].dev->identifier); + } else { + instances[i].chip = c->token; + + for (id = PCIchipsets; id->numChipset >= 0; id++) { + if (id->numChipset == instances[i].chip) + break; + } + if(id->numChipset >=0){ + xf86Msg(X_CONFIG,"Chipset override: %s\n", + instances[i].dev->chipset); + from = X_CONFIG; + } else { + instances[i].claimed = FALSE; + numClaimedInstances--; + xf86MsgVerb(X_WARNING, 0, "%s: Chipset \"%s\" in Device " + "section \"%s\" isn't a valid PCI chipset\n", + driverName, instances[i].dev->chipset, + instances[i].dev->identifier); + } + } + } else if (instances[i].dev->chipID > 0) { + for (id = PCIchipsets; id->numChipset >= 0; id++) { + if (id->PCIid == instances[i].dev->chipID) + break; + } + if (id->numChipset == -1) { + instances[i].claimed = FALSE; + numClaimedInstances--; + xf86MsgVerb(X_WARNING, 0, "%s: ChipID 0x%04X in Device " + "section \"%s\" isn't valid for this driver\n", + driverName, instances[i].dev->chipID, + instances[i].dev->identifier); + } else { + instances[i].chip = id->numChipset; + + xf86Msg( X_CONFIG,"ChipID override: 0x%04X\n", + instances[i].dev->chipID); + from = X_CONFIG; + } + } else if (!instances[i].foundHW) { + /* + * This means that there was no override and the PCI chipType + * doesn't match one that is supported + */ + instances[i].claimed = FALSE; + numClaimedInstances--; + } + if (instances[i].claimed == TRUE){ + for (c = chipsets; c->token >= 0; c++) { + if (c->token == instances[i].chip) + break; + } + xf86Msg(from,"Chipset %s found\n", + c->name); + } + } + + /* + * Of the claimed instances, check that another driver hasn't already + * claimed its slot. + */ + numFound = 0; + for (i = 0; i < allocatedInstances && numClaimedInstances > 0; i++) { + + if (!instances[i].claimed) + continue; + pPci = instances[i].pci; + + + /* + * Allow the same entity to be used more than once for devices with + * multiple screens per entity. This assumes implicitly that there + * will be a screen == 0 instance. + * + * XXX Need to make sure that two different drivers don't claim + * the same screen > 0 instance. + */ + if (instances[i].screen == 0 && !xf86CheckPciSlot( pPci )) + continue; + +#ifdef DEBUG + ErrorF("%s: card at %d:%d:%d is claimed by a Device section\n", + driverName, pPci->bus, pPci->dev, pPci->func); +#endif + + /* Allocate an entry in the lists to be returned */ + numFound++; + retEntities = xnfrealloc(retEntities, numFound * sizeof(int)); + retEntities[numFound - 1] = xf86ClaimPciSlot( pPci, drvp, + instances[i].chip, + instances[i].dev, + instances[i].dev->active); + if (retEntities[numFound - 1] == -1 && instances[i].screen > 0) { + for (j = 0; j < xf86NumEntities; j++) { + EntityPtr pEnt = xf86Entities[j]; + if (pEnt->bus.type != BUS_PCI) + continue; + if (pEnt->bus.id.pci == pPci) { + retEntities[numFound - 1] = j; + xf86AddDevToEntity(j, instances[i].dev); + break; + } + } + } + } + xfree(instances); + if (numFound > 0) { + *foundEntities = retEntities; + } + + return numFound; +} + +_X_EXPORT int +xf86MatchIsaInstances(const char *driverName, SymTabPtr chipsets, + IsaChipsets *ISAchipsets, DriverPtr drvp, + FindIsaDevProc FindIsaDevice, GDevPtr *devList, + int numDevs, int **foundEntities) +{ + SymTabRec *c; + IsaChipsets *Chips; + int i; + int numFound = 0; + int foundChip = -1; + int *retEntities = NULL; + + *foundEntities = NULL; + +#if defined(__sparc__) || defined(__powerpc__) + FindIsaDevice = NULL; /* Temporary */ +#endif + + if (xf86DoProbe || (xf86DoConfigure && xf86DoConfigurePass1)) { + if (FindIsaDevice && + ((foundChip = (*FindIsaDevice)(NULL)) != -1)) { + xf86AddDeviceToConfigure(drvp->driverName, NULL, foundChip); + return 1; + } + return 0; + } + + for (i = 0; i < numDevs; i++) { + MessageType from = X_CONFIG; + GDevPtr dev = NULL; + GDevPtr devBus = NULL; + + if (devList[i]->busID && *devList[i]->busID) { + if (xf86ParseIsaBusString(devList[i]->busID)) { + if (devBus) xf86MsgVerb(X_WARNING,0, + "%s: More than one matching Device " + "section for ISA-Bus found: %s\n", + driverName,devList[i]->identifier); + else devBus = devList[i]; + } + } else { + if (xf86IsPrimaryIsa()) { + if (dev) xf86MsgVerb(X_WARNING,0, + "%s: More than one matching " + "Device section found: %s\n", + driverName,devList[i]->identifier); + else dev = devList[i]; + } + } + if (devBus) dev = devBus; + if (dev) { + if (dev->chipset) { + for (c = chipsets; c->token >= 0; c++) { + if (xf86NameCmp(c->name, dev->chipset) == 0) + break; + } + if (c->token == -1) { + xf86MsgVerb(X_WARNING, 0, "%s: Chipset \"%s\" in Device " + "section \"%s\" isn't valid for this driver\n", + driverName, dev->chipset, + dev->identifier); + } else + foundChip = c->token; + } else { + if (FindIsaDevice) foundChip = (*FindIsaDevice)(dev); + /* Probe it */ + from = X_PROBED; + } + } + + /* Check if the chip type is listed in the chipset table - for sanity*/ + + if (foundChip >= 0){ + for (Chips = ISAchipsets; Chips->numChipset >= 0; Chips++) { + if (Chips->numChipset == foundChip) + break; + } + if (Chips->numChipset == -1){ + foundChip = -1; + xf86MsgVerb(X_WARNING,0, + "%s: Driver detected unknown ISA-Bus Chipset\n", + driverName); + } + } + if (foundChip != -1) { + numFound++; + retEntities = xnfrealloc(retEntities,numFound * sizeof(int)); + retEntities[numFound - 1] = + xf86ClaimIsaSlot(drvp,foundChip,dev, dev->active ? TRUE : FALSE); + for (c = chipsets; c->token >= 0; c++) { + if (c->token == foundChip) + break; + } + xf86Msg(from, "Chipset %s found\n", c->name); + } + } + *foundEntities = retEntities; + + return numFound; +} + +/* + * xf86GetClocks -- get the dot-clocks via a BIG BAD hack ... + */ +_X_EXPORT void +xf86GetClocks(ScrnInfoPtr pScrn, int num, Bool (*ClockFunc)(ScrnInfoPtr, int), + void (*ProtectRegs)(ScrnInfoPtr, Bool), + void (*BlankScreen)(ScrnInfoPtr, Bool), IOADDRESS vertsyncreg, + int maskval, int knownclkindex, int knownclkvalue) +{ + register int status = vertsyncreg; + unsigned long i, cnt, rcnt, sync; + + /* First save registers that get written on */ + (*ClockFunc)(pScrn, CLK_REG_SAVE); + + xf86SetPriority(TRUE); + + if (num > MAXCLOCKS) + num = MAXCLOCKS; + + for (i = 0; i < num; i++) + { + if (ProtectRegs) + (*ProtectRegs)(pScrn, TRUE); + if (!(*ClockFunc)(pScrn, i)) + { + pScrn->clock[i] = -1; + continue; + } + if (ProtectRegs) + (*ProtectRegs)(pScrn, FALSE); + if (BlankScreen) + (*BlankScreen)(pScrn, FALSE); + + usleep(50000); /* let VCO stabilise */ + + cnt = 0; + sync = 200000; + + /* XXX How critical is this? */ + if (!xf86DisableInterrupts()) + { + (*ClockFunc)(pScrn, CLK_REG_RESTORE); + ErrorF("Failed to disable interrupts during clock probe. If\n"); + ErrorF("your OS does not support disabling interrupts, then you\n"); + FatalError("must specify a Clocks line in the XF86Config file.\n"); + } + while ((inb(status) & maskval) == 0x00) + if (sync-- == 0) goto finish; + /* Something appears to be happening, so reset sync count */ + sync = 200000; + while ((inb(status) & maskval) == maskval) + if (sync-- == 0) goto finish; + /* Something appears to be happening, so reset sync count */ + sync = 200000; + while ((inb(status) & maskval) == 0x00) + if (sync-- == 0) goto finish; + + for (rcnt = 0; rcnt < 5; rcnt++) + { + while (!(inb(status) & maskval)) + cnt++; + while ((inb(status) & maskval)) + cnt++; + } + +finish: + xf86EnableInterrupts(); + + pScrn->clock[i] = cnt ? cnt : -1; + if (BlankScreen) + (*BlankScreen)(pScrn, TRUE); + } + + xf86SetPriority(FALSE); + + for (i = 0; i < num; i++) + { + if (i != knownclkindex) + { + if (pScrn->clock[i] == -1) + { + pScrn->clock[i] = 0; + } + else + { + pScrn->clock[i] = (int)(0.5 + + (((float)knownclkvalue) * pScrn->clock[knownclkindex]) / + (pScrn->clock[i])); + /* Round to nearest 10KHz */ + pScrn->clock[i] += 5; + pScrn->clock[i] /= 10; + pScrn->clock[i] *= 10; + } + } + } + + pScrn->clock[knownclkindex] = knownclkvalue; + pScrn->numClocks = num; + + /* Restore registers that were written on */ + (*ClockFunc)(pScrn, CLK_REG_RESTORE); +} + +_X_EXPORT void +xf86SetPriority(Bool up) +{ + static int saved_nice; + + if (up) { +#ifdef HAS_SETPRIORITY + saved_nice = getpriority(PRIO_PROCESS, 0); + setpriority(PRIO_PROCESS, 0, -20); +#endif +#if defined(SYSV) || defined(SVR4) || defined(linux) + saved_nice = nice(0); + nice(-20 - saved_nice); +#endif + } else { +#ifdef HAS_SETPRIORITY + setpriority(PRIO_PROCESS, 0, saved_nice); +#endif +#if defined(SYSV) || defined(SVR4) || defined(linux) + nice(20 + saved_nice); +#endif + } +} + +_X_EXPORT const char * +xf86GetVisualName(int visual) +{ + if (visual < 0 || visual > DirectColor) + return NULL; + + return xf86VisualNames[visual]; +} + + +_X_EXPORT int +xf86GetVerbosity() +{ + return max(xf86Verbose, xf86LogVerbose); +} + +_X_EXPORT Pix24Flags +xf86GetPix24() +{ + return xf86Info.pixmap24; +} + + +_X_EXPORT int +xf86GetDepth() +{ + return xf86Depth; +} + + +_X_EXPORT rgb +xf86GetWeight() +{ + return xf86Weight; +} + + +_X_EXPORT Gamma +xf86GetGamma() +{ + return xf86Gamma; +} + + +_X_EXPORT Bool +xf86GetFlipPixels() +{ + return xf86FlipPixels; +} + + +_X_EXPORT const char * +xf86GetServerName() +{ + return xf86ServerName; +} + + +_X_EXPORT Bool +xf86ServerIsExiting() +{ + return (dispatchException & DE_TERMINATE) == DE_TERMINATE; +} + + +_X_EXPORT Bool +xf86ServerIsResetting() +{ + return xf86Resetting; +} + + +Bool +xf86ServerIsInitialising() +{ + return xf86Initialising; +} + + +_X_EXPORT Bool +xf86ServerIsOnlyDetecting(void) +{ + return xf86DoProbe || xf86DoConfigure; +} + + +_X_EXPORT Bool +xf86ServerIsOnlyProbing(void) +{ + return xf86ProbeOnly; +} + + +_X_EXPORT Bool +xf86CaughtSignal() +{ + return xf86Info.caughtSignal; +} + + +_X_EXPORT Bool +xf86GetVidModeAllowNonLocal() +{ + return xf86Info.vidModeAllowNonLocal; +} + + +_X_EXPORT Bool +xf86GetVidModeEnabled() +{ + return xf86Info.vidModeEnabled; +} + +_X_EXPORT Bool +xf86GetModInDevAllowNonLocal() +{ + return xf86Info.miscModInDevAllowNonLocal; +} + + +_X_EXPORT Bool +xf86GetModInDevEnabled() +{ + return xf86Info.miscModInDevEnabled; +} + + +_X_EXPORT Bool +xf86GetAllowMouseOpenFail() +{ + return xf86Info.allowMouseOpenFail; +} + + +_X_EXPORT Bool +xf86IsPc98() +{ +#ifdef __i386__ + return xf86Info.pc98; +#else + return FALSE; +#endif +} + +_X_EXPORT void +xf86DisableRandR() +{ + xf86Info.disableRandR = TRUE; + xf86Info.randRFrom = X_PROBED; +} + +_X_EXPORT CARD32 +xf86GetVersion() +{ + return XF86_VERSION_CURRENT; +} + +_X_EXPORT CARD32 +xf86GetModuleVersion(pointer module) +{ + return (CARD32)LoaderGetModuleVersion(module); +} + +_X_EXPORT pointer +xf86LoadDrvSubModule(DriverPtr drv, const char *name) +{ + pointer ret; + int errmaj = 0, errmin = 0; + + ret = LoadSubModule(drv->module, name, NULL, NULL, NULL, NULL, + &errmaj, &errmin); + if (!ret) + LoaderErrorMsg(NULL, name, errmaj, errmin); + return ret; +} + +_X_EXPORT pointer +xf86LoadSubModule(ScrnInfoPtr pScrn, const char *name) +{ + pointer ret; + int errmaj = 0, errmin = 0; + + ret = LoadSubModule(pScrn->module, name, NULL, NULL, NULL, NULL, + &errmaj, &errmin); + if (!ret) + LoaderErrorMsg(pScrn->name, name, errmaj, errmin); + return ret; +} + +/* + * xf86LoadOneModule loads a single module. + */ +_X_EXPORT pointer +xf86LoadOneModule(char *name, pointer opt) +{ + int errmaj, errmin; + char *Name; + pointer mod; + + if (!name) + return NULL; + + /* Normalise the module name */ + Name = xf86NormalizeName(name); + + /* Skip empty names */ + if (Name == NULL) + return NULL; + if (*Name == '\0') { + xfree(Name); + return NULL; + } + + mod = LoadModule(Name, NULL, NULL, NULL, opt, NULL, &errmaj, &errmin); + if (!mod) + LoaderErrorMsg(NULL, Name, errmaj, errmin); + xfree(Name); + return mod; +} + +_X_EXPORT void +xf86UnloadSubModule(pointer mod) +{ + /* + * This is disabled for now. The loader isn't smart enough yet to undo + * relocations. + */ +#if 0 + UnloadSubModule(mod); +#endif +} + +_X_EXPORT Bool +xf86LoaderCheckSymbol(const char *name) +{ + return LoaderSymbol(name) != NULL; +} + +/* These two are just ABI stubs, they don't do anything in dlloader world */ +_X_EXPORT void +xf86LoaderReqSymLists(const char **list0, ...) +{ +} + +_X_EXPORT void +xf86LoaderReqSymbols(const char *sym0, ...) +{ +} + +_X_EXPORT void +xf86LoaderRefSymLists(const char **list0, ...) +{ +} + +_X_EXPORT void +xf86LoaderRefSymbols(const char *sym0, ...) +{ +} + + +typedef enum { + OPTION_BACKING_STORE +} BSOpts; + +static const OptionInfoRec BSOptions[] = { + { OPTION_BACKING_STORE, "BackingStore", OPTV_BOOLEAN, {0}, FALSE }, + { -1, NULL, OPTV_NONE, {0}, FALSE } +}; + +_X_EXPORT void +xf86SetBackingStore(ScreenPtr pScreen) +{ + Bool useBS = FALSE; + MessageType from = X_DEFAULT; + ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; + OptionInfoPtr options; + + options = xnfalloc(sizeof(BSOptions)); + (void)memcpy(options, BSOptions, sizeof(BSOptions)); + xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, options); + + /* check for commandline option here */ + if (xf86bsEnableFlag) { + from = X_CMDLINE; + useBS = TRUE; + } else if (xf86bsDisableFlag) { + from = X_CMDLINE; + useBS = FALSE; + } else { + if (xf86GetOptValBool(options, OPTION_BACKING_STORE, &useBS)) + from = X_CONFIG; + } + xfree(options); + pScreen->backingStoreSupport = useBS ? Always : NotUseful; + if (serverGeneration == 1) + xf86DrvMsg(pScreen->myNum, from, "Backing store %s\n", + useBS ? "enabled" : "disabled"); +} + + +typedef enum { + OPTION_SILKEN_MOUSE +} SMOpts; + +static const OptionInfoRec SMOptions[] = { + { OPTION_SILKEN_MOUSE, "SilkenMouse", OPTV_BOOLEAN, {0}, FALSE }, + { -1, NULL, OPTV_NONE, {0}, FALSE } +}; + +_X_EXPORT void +xf86SetSilkenMouse (ScreenPtr pScreen) +{ + Bool useSM = TRUE; + MessageType from = X_DEFAULT; + ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; + OptionInfoPtr options; + + options = xnfalloc(sizeof(SMOptions)); + (void)memcpy(options, SMOptions, sizeof(SMOptions)); + xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, options); + + /* check for commandline option here */ + /* disable if screen shares resources */ + if (((pScrn->racMemFlags & RAC_CURSOR) && + !xf86NoSharedResources(pScrn->scrnIndex,MEM)) || + ((pScrn->racIoFlags & RAC_CURSOR) && + !xf86NoSharedResources(pScrn->scrnIndex,IO))) { + useSM = FALSE; + from = X_PROBED; + } else if (xf86silkenMouseDisableFlag) { + from = X_CMDLINE; + useSM = FALSE; + } else { + if (xf86GetOptValBool(options, OPTION_SILKEN_MOUSE, &useSM)) + from = X_CONFIG; + } + xfree(options); + /* + * XXX quick hack to report correctly for OSs that can't do SilkenMouse + * yet. Should handle this differently so that alternate async methods + * work correctly with this too. + */ + pScrn->silkenMouse = useSM && xf86SIGIOSupported(); + if (serverGeneration == 1) + xf86DrvMsg(pScreen->myNum, from, "Silken mouse %s\n", + pScrn->silkenMouse ? "enabled" : "disabled"); +} + +/* Wrote this function for the PM2 Xv driver, preliminary. */ + +_X_EXPORT pointer +xf86FindXvOptions(int scrnIndex, int adaptor_index, char *port_name, + char **adaptor_name, pointer *adaptor_options) +{ + ScrnInfoPtr pScrn = xf86Screens[scrnIndex]; + confXvAdaptorPtr adaptor; + int i; + + if (adaptor_index >= pScrn->confScreen->numxvadaptors) { + if (adaptor_name) *adaptor_name = NULL; + if (adaptor_options) *adaptor_options = NULL; + return NULL; + } + + adaptor = &pScrn->confScreen->xvadaptors[adaptor_index]; + if (adaptor_name) *adaptor_name = adaptor->identifier; + if (adaptor_options) *adaptor_options = adaptor->options; + + for (i = 0; i < adaptor->numports; i++) + if (!xf86NameCmp(adaptor->ports[i].identifier, port_name)) + return adaptor->ports[i].options; + + return NULL; +} + +/* Rather than duplicate loader's get OS function, just include it directly */ +#define LoaderGetOS xf86GetOS +#include "loader/os.c" + +/* new RAC */ +/* + * xf86ConfigIsa/PciEntity() -- These helper functions assign an + * active entity to a screen, registers its fixed resources, assign + * special enter/leave functions and their private scratch area to + * this entity, take the dog for a walk... + */ +_X_EXPORT ScrnInfoPtr +xf86ConfigIsaEntity(ScrnInfoPtr pScrn, int scrnFlag, int entityIndex, + IsaChipsets *i_chip, resList res, EntityProc init, + EntityProc enter, EntityProc leave, pointer private) +{ + IsaChipsets *i_id; + EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex); + if (!pEnt) return pScrn; + + if (!(pEnt->location.type == BUS_ISA)) { + xfree(pEnt); + return pScrn; + } + + if (!pEnt->active) { + xf86ConfigIsaEntityInactive(pEnt, i_chip, res, init, enter, + leave, private); + xfree(pEnt); + return pScrn; + } + + if (!pScrn) + pScrn = xf86AllocateScreen(pEnt->driver,scrnFlag); + xf86AddEntityToScreen(pScrn,entityIndex); + + if (i_chip) { + for (i_id = i_chip; i_id->numChipset != -1; i_id++) { + if (pEnt->chipset == i_id->numChipset) break; + } + xf86ClaimFixedResources(i_id->resList,entityIndex); + } + xfree(pEnt); + xf86ClaimFixedResources(res,entityIndex); + xf86SetEntityFuncs(entityIndex,init,enter,leave,private); + + return pScrn; +} + +_X_EXPORT ScrnInfoPtr +xf86ConfigPciEntity(ScrnInfoPtr pScrn, int scrnFlag, int entityIndex, + PciChipsets *p_chip, resList res, EntityProc init, + EntityProc enter, EntityProc leave, pointer private) +{ + PciChipsets *p_id; + EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex); + if (!pEnt) return pScrn; + + if (!(pEnt->location.type == BUS_PCI) + || !xf86GetPciInfoForEntity(entityIndex)) { + xfree(pEnt); + return pScrn; + } + if (!pEnt->active) { + xf86ConfigPciEntityInactive(pEnt, p_chip, res, init, enter, + leave, private); + xfree(pEnt); + return pScrn; + } + + if (!pScrn) + pScrn = xf86AllocateScreen(pEnt->driver,scrnFlag); + if (xf86IsEntitySharable(entityIndex)) { + xf86SetEntityShared(entityIndex); + } + xf86AddEntityToScreen(pScrn,entityIndex); + if (xf86IsEntityShared(entityIndex)) { + return pScrn; + } + if (p_chip) { + for (p_id = p_chip; p_id->numChipset != -1; p_id++) { + if (pEnt->chipset == p_id->numChipset) break; + } + xf86ClaimFixedResources(p_id->resList,entityIndex); + } + xfree(pEnt); + + xf86ClaimFixedResources(res,entityIndex); + xf86SetEntityFuncs(entityIndex,init,enter,leave,private); + + return pScrn; +} + +_X_EXPORT ScrnInfoPtr +xf86ConfigFbEntity(ScrnInfoPtr pScrn, int scrnFlag, int entityIndex, + EntityProc init, EntityProc enter, EntityProc leave, + pointer private) +{ + EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex); + if (!pEnt) return pScrn; + + if (!(pEnt->location.type == BUS_NONE)) { + xfree(pEnt); + return pScrn; + } + + if (!pEnt->active) { + xf86ConfigFbEntityInactive(pEnt, init, enter, leave, private); + xfree(pEnt); + return pScrn; + } + + if (!pScrn) + pScrn = xf86AllocateScreen(pEnt->driver,scrnFlag); + xf86AddEntityToScreen(pScrn,entityIndex); + + xf86SetEntityFuncs(entityIndex,init,enter,leave,private); + + return pScrn; +} + +/* + * + * OBSOLETE ! xf86ConfigActiveIsaEntity() and xf86ConfigActivePciEntity() + * are obsolete functions. They the are likely to be removed + * Don't use! + */ +_X_EXPORT Bool +xf86ConfigActiveIsaEntity(ScrnInfoPtr pScrn, int entityIndex, + IsaChipsets *i_chip, resList res, EntityProc init, + EntityProc enter, EntityProc leave, pointer private) +{ + IsaChipsets *i_id; + EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex); + if (!pEnt) return FALSE; + + if (!pEnt->active || !(pEnt->location.type == BUS_ISA)) { + xfree(pEnt); + return FALSE; + } + + xf86AddEntityToScreen(pScrn,entityIndex); + + if (i_chip) { + for (i_id = i_chip; i_id->numChipset != -1; i_id++) { + if (pEnt->chipset == i_id->numChipset) break; + } + xf86ClaimFixedResources(i_id->resList,entityIndex); + } + xfree(pEnt); + xf86ClaimFixedResources(res,entityIndex); + if (!xf86SetEntityFuncs(entityIndex,init,enter,leave,private)) + return FALSE; + + return TRUE; +} + +_X_EXPORT Bool +xf86ConfigActivePciEntity(ScrnInfoPtr pScrn, int entityIndex, + PciChipsets *p_chip, resList res, EntityProc init, + EntityProc enter, EntityProc leave, pointer private) +{ + PciChipsets *p_id; + EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex); + if (!pEnt) return FALSE; + + if (!pEnt->active || !(pEnt->location.type == BUS_PCI)) { + xfree(pEnt); + return FALSE; + } + xf86AddEntityToScreen(pScrn,entityIndex); + + if (p_chip) { + for (p_id = p_chip; p_id->numChipset != -1; p_id++) { + if (pEnt->chipset == p_id->numChipset) break; + } + xf86ClaimFixedResources(p_id->resList,entityIndex); + } + xfree(pEnt); + + xf86ClaimFixedResources(res,entityIndex); + if (!xf86SetEntityFuncs(entityIndex,init,enter,leave,private)) + return FALSE; + + return TRUE; +} + +/* + * xf86ConfigPci/IsaEntityInactive() -- These functions can be used + * to configure an inactive entity as well as to reconfigure an + * previously active entity inactive. If the entity has been + * assigned to a screen before it will be removed. If p_pci(p_isa) is + * non-NULL all static resources listed there will be registered. + */ +_X_EXPORT void +xf86ConfigPciEntityInactive(EntityInfoPtr pEnt, PciChipsets *p_chip, + resList res, EntityProc init, EntityProc enter, + EntityProc leave, pointer private) +{ + PciChipsets *p_id; + ScrnInfoPtr pScrn; + + if ((pScrn = xf86FindScreenForEntity(pEnt->index))) + xf86RemoveEntityFromScreen(pScrn,pEnt->index); + else if (p_chip) { + for (p_id = p_chip; p_id->numChipset != -1; p_id++) { + if (pEnt->chipset == p_id->numChipset) break; + } + xf86ClaimFixedResources(p_id->resList,pEnt->index); + } + xf86ClaimFixedResources(res,pEnt->index); + /* shared resources are only needed when entity is active: remove */ + xf86DeallocateResourcesForEntity(pEnt->index, ResShared); + xf86SetEntityFuncs(pEnt->index,init,enter,leave,private); +} + +_X_EXPORT void +xf86ConfigIsaEntityInactive(EntityInfoPtr pEnt, IsaChipsets *i_chip, + resList res, EntityProc init, EntityProc enter, + EntityProc leave, pointer private) +{ + IsaChipsets *i_id; + ScrnInfoPtr pScrn; + + if ((pScrn = xf86FindScreenForEntity(pEnt->index))) + xf86RemoveEntityFromScreen(pScrn,pEnt->index); + else if (i_chip) { + for (i_id = i_chip; i_id->numChipset != -1; i_id++) { + if (pEnt->chipset == i_id->numChipset) break; + } + xf86ClaimFixedResources(i_id->resList,pEnt->index); + } + xf86ClaimFixedResources(res,pEnt->index); + /* shared resources are only needed when entity is active: remove */ + xf86DeallocateResourcesForEntity(pEnt->index, ResShared); + xf86SetEntityFuncs(pEnt->index,init,enter,leave,private); +} + +void +xf86ConfigFbEntityInactive(EntityInfoPtr pEnt, EntityProc init, + EntityProc enter, EntityProc leave, pointer private) +{ + ScrnInfoPtr pScrn; + + if ((pScrn = xf86FindScreenForEntity(pEnt->index))) + xf86RemoveEntityFromScreen(pScrn,pEnt->index); + xf86SetEntityFuncs(pEnt->index,init,enter,leave,private); +} + +_X_EXPORT Bool +xf86IsScreenPrimary(int scrnIndex) +{ + ScrnInfoPtr pScrn = xf86Screens[scrnIndex]; + int i; + + for (i=0 ; i < pScrn->numEntities; i++) { + if (xf86IsEntityPrimary(i)) + return TRUE; + } + return FALSE; +} + +_X_EXPORT int +xf86RegisterRootWindowProperty(int ScrnIndex, Atom property, Atom type, + int format, unsigned long len, pointer value ) +{ + RootWinPropPtr pNewProp = NULL, pRegProp; + int i; + Bool existing = FALSE; + +#ifdef DEBUG + ErrorF("xf86RegisterRootWindowProperty(%d, %ld, %ld, %d, %ld, %p)\n", + ScrnIndex, property, type, format, len, value); +#endif + + if (ScrnIndex<0 || ScrnIndex>=xf86NumScreens) { + return(BadMatch); + } + + if (xf86RegisteredPropertiesTable && + xf86RegisteredPropertiesTable[ScrnIndex]) { + for (pNewProp = xf86RegisteredPropertiesTable[ScrnIndex]; + pNewProp; pNewProp = pNewProp->next) { + if (strcmp(pNewProp->name, NameForAtom(property)) == 0) + break; + } + } + + if (!pNewProp) { + if ((pNewProp = (RootWinPropPtr)xalloc(sizeof(RootWinProp))) == NULL) { + return(BadAlloc); + } + /* + * We will put this property at the end of the list so that + * the changes are made in the order they were requested. + */ + pNewProp->next = NULL; + } else { + if (pNewProp->name) + xfree(pNewProp->name); + existing = TRUE; + } + + pNewProp->name = xnfstrdup(NameForAtom(property)); + pNewProp->type = type; + pNewProp->format = format; + pNewProp->size = len; + pNewProp->data = value; + +#ifdef DEBUG + ErrorF("new property filled\n"); +#endif + + if (NULL==xf86RegisteredPropertiesTable) { +#ifdef DEBUG + ErrorF("creating xf86RegisteredPropertiesTable[] size %d\n", + xf86NumScreens); +#endif + if ( NULL==(xf86RegisteredPropertiesTable=(RootWinPropPtr*)xnfcalloc(sizeof(RootWinProp),xf86NumScreens) )) { + return(BadAlloc); + } + for (i=0; i<xf86NumScreens; i++) { + xf86RegisteredPropertiesTable[i] = NULL; + } + } + +#ifdef DEBUG + ErrorF("xf86RegisteredPropertiesTable %p\n", + (void *)xf86RegisteredPropertiesTable); + ErrorF("xf86RegisteredPropertiesTable[%d] %p\n", + ScrnIndex, (void *)xf86RegisteredPropertiesTable[ScrnIndex]); +#endif + + if (!existing) { + if ( xf86RegisteredPropertiesTable[ScrnIndex] == NULL) { + xf86RegisteredPropertiesTable[ScrnIndex] = pNewProp; + } else { + pRegProp = xf86RegisteredPropertiesTable[ScrnIndex]; + while (pRegProp->next != NULL) { +#ifdef DEBUG + ErrorF("- next %p\n", (void *)pRegProp); +#endif + pRegProp = pRegProp->next; + } + pRegProp->next = pNewProp; + } + } +#ifdef DEBUG + ErrorF("xf86RegisterRootWindowProperty succeeded\n"); +#endif + return(Success); +} + +_X_EXPORT Bool +xf86IsUnblank(int mode) +{ + switch(mode) { + case SCREEN_SAVER_OFF: + case SCREEN_SAVER_FORCER: + return TRUE; + case SCREEN_SAVER_ON: + case SCREEN_SAVER_CYCLE: + return FALSE; + default: + xf86MsgVerb(X_WARNING, 0, "Unexpected save screen mode: %d\n", mode); + return TRUE; + } +} + +_X_EXPORT void +xf86MotionHistoryAllocate(LocalDevicePtr local) +{ + AllocateMotionHistory(local->dev); +} + +_X_EXPORT int +xf86GetMotionEvents(DeviceIntPtr pDev, xTimecoord *buff, unsigned long start, + unsigned long stop, ScreenPtr pScreen) +{ + return GetMotionHistory(pDev, buff, start, stop, pScreen); +} + +_X_EXPORT void +xf86getsecs(long * secs, long * usecs) +{ + struct timeval tv; + + X_GETTIMEOFDAY(&tv); + if (secs) + *secs = tv.tv_sec; + if (usecs) + *usecs= tv.tv_usec; + + return; +} |