/* * Copyright 2000 by Alan Hourihane, Sychdyn, North Wales, UK. * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name of Alan Hourihane not be used in * advertising or publicity pertaining to distribution of the software without * specific, written prior permission. Alan Hourihane makes no representations * about the suitability of this software for any purpose. It is provided * "as is" without express or implied warranty. * * ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. * * Authors: Alan Hourihane, */ /* * Reformatted with GNU indent (2.2.8), using the following options: * * -bad -bap -c41 -cd0 -ncdb -ci6 -cli0 -cp0 -ncs -d0 -di3 -i3 -ip3 -l78 * -lp -npcs -psl -sob -ss -br -ce -sc -hnl * * This provides a good match with the original i810 code and preferred * XFree86 formatting conventions. * * When editing this driver, please follow the existing formatting, and edit * with characters expanded at 8-column intervals. */ /* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/i810/i830_dga.c,v 1.3 2003/02/26 04:11:23 dawes Exp $ */ #include "xf86.h" #include "xf86_OSproc.h" #include "xf86_ansic.h" #include "xf86Pci.h" #include "xf86PciInfo.h" #include "xaa.h" #include "xaalocal.h" #include "i830.h" #include "i810_reg.h" #include "dgaproc.h" #include "vgaHW.h" static Bool I830_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **, int *, int *, int *); static Bool I830_SetMode(ScrnInfoPtr, DGAModePtr); static void I830_Sync(ScrnInfoPtr); static int I830_GetViewport(ScrnInfoPtr); static void I830_SetViewport(ScrnInfoPtr, int, int, int); static void I830_FillRect(ScrnInfoPtr, int, int, int, int, unsigned long); static void I830_BlitRect(ScrnInfoPtr, int, int, int, int, int, int); #if 0 static void I830_BlitTransRect(ScrnInfoPtr, int, int, int, int, int, int, unsigned long); #endif static DGAFunctionRec I830DGAFuncs = { I830_OpenFramebuffer, NULL, I830_SetMode, I830_SetViewport, I830_GetViewport, I830_Sync, I830_FillRect, I830_BlitRect, #if 0 I830_BlitTransRect #else NULL #endif }; Bool I830DGAInit(ScreenPtr pScreen) { ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; I830Ptr pI830 = I830PTR(pScrn); DGAModePtr modes = NULL, newmodes = NULL, currentMode; DisplayModePtr pMode, firstMode; int Bpp = pScrn->bitsPerPixel >> 3; int num = 0; MARKER(); pMode = firstMode = pScrn->modes; while (pMode) { newmodes = xrealloc(modes, (num + 1) * sizeof(DGAModeRec)); if (!newmodes) { xfree(modes); return FALSE; } modes = newmodes; currentMode = modes + num; num++; currentMode->mode = pMode; currentMode->flags = DGA_CONCURRENT_ACCESS | DGA_PIXMAP_AVAILABLE; if (!pI830->noAccel) currentMode->flags |= DGA_FILL_RECT | DGA_BLIT_RECT; if (pMode->Flags & V_DBLSCAN) currentMode->flags |= DGA_DOUBLESCAN; if (pMode->Flags & V_INTERLACE) currentMode->flags |= DGA_INTERLACED; currentMode->byteOrder = pScrn->imageByteOrder; currentMode->depth = pScrn->depth; currentMode->bitsPerPixel = pScrn->bitsPerPixel; currentMode->red_mask = pScrn->mask.red; currentMode->green_mask = pScrn->mask.green; currentMode->blue_mask = pScrn->mask.blue; currentMode->visualClass = (Bpp == 1) ? PseudoColor : TrueColor; currentMode->viewportWidth = pMode->HDisplay; currentMode->viewportHeight = pMode->VDisplay; currentMode->xViewportStep = (Bpp == 3) ? 2 : 1; currentMode->yViewportStep = 1; currentMode->viewportFlags = DGA_FLIP_RETRACE; currentMode->offset = 0; currentMode->address = pI830->FbBase + pScrn->fbOffset; currentMode->bytesPerScanline = ((pScrn->displayWidth * Bpp) + 3) & ~3L; currentMode->imageWidth = pI830->FbMemBox.x2; currentMode->imageHeight = pI830->FbMemBox.y2; currentMode->pixmapWidth = currentMode->imageWidth; currentMode->pixmapHeight = currentMode->imageHeight; currentMode->maxViewportX = currentMode->imageWidth - currentMode->viewportWidth; /* this might need to get clamped to some maximum */ currentMode->maxViewportY = currentMode->imageHeight - currentMode->viewportHeight; pMode = pMode->next; if (pMode == firstMode) break; } pI830->numDGAModes = num; pI830->DGAModes = modes; return DGAInit(pScreen, &I830DGAFuncs, modes, num); } static DisplayModePtr I830SavedDGAModes[MAXSCREENS]; static Bool I830_SetMode(ScrnInfoPtr pScrn, DGAModePtr pMode) { int index = pScrn->pScreen->myNum; I830Ptr pI830 = I830PTR(pScrn); MARKER(); if (!pMode) { /* restore the original mode */ DPRINTF(PFX, "Restoring original mode (from DGA mode)\n"); if (pI830->DGAactive) { pScrn->currentMode = I830SavedDGAModes[index]; pScrn->SwitchMode(index, pScrn->currentMode, 0); pScrn->AdjustFrame(index, 0, 0, 0); pI830->DGAactive = FALSE; } } else { if (!pI830->DGAactive) { DPRINTF(PFX, "Setting DGA mode\n"); I830SavedDGAModes[index] = pScrn->currentMode; pI830->DGAactive = TRUE; } pScrn->SwitchMode(index, pMode->mode, 0); } return TRUE; } static int I830_GetViewport(ScrnInfoPtr pScrn) { I830Ptr pI830 = I830PTR(pScrn); MARKER(); return pI830->DGAViewportStatus; } static void I830_SetViewport(ScrnInfoPtr pScrn, int x, int y, int flags) { I830Ptr pI830 = I830PTR(pScrn); vgaHWPtr hwp = VGAHWPTR(pScrn); MARKER(); pScrn->AdjustFrame(pScrn->pScreen->myNum, x, y, flags); /* wait for retrace */ while ((hwp->readST01(hwp) & 0x08)) ; while (!(hwp->readST01(hwp) & 0x08)) ; pI830->DGAViewportStatus = 0; } static void I830_FillRect(ScrnInfoPtr pScrn, int x, int y, int w, int h, unsigned long color) { I830Ptr pI830 = I830PTR(pScrn); MARKER(); if (pI830->AccelInfoRec) { (*pI830->AccelInfoRec->SetupForSolidFill) (pScrn, color, GXcopy, ~0); (*pI830->AccelInfoRec->SubsequentSolidFillRect) (pScrn, x, y, w, h); SET_SYNC_FLAG(pI830->AccelInfoRec); } } static void I830_Sync(ScrnInfoPtr pScrn) { I830Ptr pI830 = I830PTR(pScrn); MARKER(); if (pI830->AccelInfoRec) { (*pI830->AccelInfoRec->Sync) (pScrn); } } static void I830_BlitRect(ScrnInfoPtr pScrn, int srcx, int srcy, int w, int h, int dstx, int dsty) { I830Ptr pI830 = I830PTR(pScrn); MARKER(); if (pI830->AccelInfoRec) { int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1; int ydir = (srcy < dsty) ? -1 : 1; (*pI830->AccelInfoRec->SetupForScreenToScreenCopy) (pScrn, xdir, ydir, GXcopy, ~0, -1); (*pI830->AccelInfoRec->SubsequentScreenToScreenCopy) (pScrn, srcx, srcy, dstx, dsty, w, h); SET_SYNC_FLAG(pI830->AccelInfoRec); } } #if 0 static void I830_BlitTransRect(ScrnInfoPtr pScrn, int srcx, int srcy, int w, int h, int dstx, int dsty, unsigned long color) { MARKER(); /* this one should be separate since the XAA function would * prohibit usage of ~0 as the key */ } #endif static Bool I830_OpenFramebuffer(ScrnInfoPtr pScrn, char **name, unsigned char **mem, int *size, int *offset, int *flags) { I830Ptr pI830 = I830PTR(pScrn); MARKER(); *name = NULL; /* no special device */ *mem = (unsigned char *)(pI830->LinearAddr + pScrn->fbOffset); *size = pI830->FrontBuffer.Size; *offset = 0; *flags = DGA_NEED_ROOT; DPRINTF(PFX, " mem == 0x%.8x (pI830->LinearAddr)\n" "size == %lu (pI830->FbMapSize)\n", *mem, *size); return TRUE; }