#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;
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) {
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);
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();
}
#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;
*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;
}