Initial revision

1 files changed, 397 insertions, 0 deletions

diff --git a/src/radeon_dga.c b/src/radeon_dga.c
new file mode 100644
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--- /dev/null
+++ b/src/radeon_dga.c
@@ -0,0 +1,397 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/radeon_dga.c,v 1.11 2002/09/18 18:14:58 martin Exp $ */
+/*
+ * Copyright 2000 ATI Technologies Inc., Markham, Ontario, and
+ *                VA Linux Systems Inc., Fremont, California.
+ *
+ * All Rights Reserved.
+ *
+ * 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 on 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 (including the
+ * next paragraph) 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
+ * NON-INFRINGEMENT.  IN NO EVENT SHALL ATI, VA LINUX SYSTEMS AND/OR
+ * THEIR SUPPLIERS 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.
+ */
+
+/*
+ * Authors:
+ *   Kevin E. Martin <martin@xfree86.org>
+ *
+ * Credits:
+ *
+ *   Thanks to Ove Kåven <ovek@transgaming.com> for writing the Rage 128
+ *   DGA support.  Portions of this file are based on the initialization
+ *   code for that driver.
+ *
+ */
+
+				/* Driver data structures */
+#include "radeon.h"
+#include "radeon_probe.h"
+
+				/* X and server generic header files */
+#include "xf86.h"
+
+				/* DGA support */
+#include "dgaproc.h"
+
+
+static Bool RADEON_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **,
+				   int *, int *, int *);
+static Bool RADEON_SetMode(ScrnInfoPtr, DGAModePtr);
+static int  RADEON_GetViewport(ScrnInfoPtr);
+static void RADEON_SetViewport(ScrnInfoPtr, int, int, int);
+static void RADEON_FillRect(ScrnInfoPtr, int, int, int, int, unsigned long);
+static void RADEON_BlitRect(ScrnInfoPtr, int, int, int, int, int, int);
+static void RADEON_BlitTransRect(ScrnInfoPtr, int, int, int, int, int, int,
+				 unsigned long);
+
+
+static DGAModePtr RADEONSetupDGAMode(ScrnInfoPtr pScrn,
+				     DGAModePtr modes,
+				     int *num,
+				     int bitsPerPixel,
+				     int depth,
+				     Bool pixmap,
+				     int secondPitch,
+				     unsigned long red,
+				     unsigned long green,
+				     unsigned long blue,
+				     short visualClass)
+{
+    RADEONInfoPtr   info     = RADEONPTR(pScrn);
+    DGAModePtr      newmodes = NULL;
+    DGAModePtr      currentMode;
+    DisplayModePtr  pMode;
+    DisplayModePtr  firstMode;
+    unsigned int    size;
+    int             pitch;
+    int             Bpp      = bitsPerPixel >> 3;
+
+SECOND_PASS:
+
+    pMode = firstMode = pScrn->modes;
+
+    while (1) {
+	pitch = pScrn->displayWidth;
+	size = pitch * Bpp * pMode->VDisplay;
+
+	if ((!secondPitch || (pitch != secondPitch)) &&
+	    (size <= info->FbMapSize)) {
+
+	    if (secondPitch)
+		pitch = secondPitch;
+
+	    if (!(newmodes = xrealloc(modes, (*num + 1) * sizeof(DGAModeRec))))
+	        break;
+
+	    modes       = newmodes;
+	    currentMode = modes + *num;
+
+	    currentMode->mode           = pMode;
+	    currentMode->flags          = DGA_CONCURRENT_ACCESS;
+
+	    if (pixmap)
+	        currentMode->flags     |= DGA_PIXMAP_AVAILABLE;
+
+	    if (info->accel) {
+	      if (info->accel->SetupForSolidFill &&
+		  info->accel->SubsequentSolidFillRect)
+		 currentMode->flags    |= DGA_FILL_RECT;
+	      if (info->accel->SetupForScreenToScreenCopy &&
+		  info->accel->SubsequentScreenToScreenCopy)
+		 currentMode->flags    |= DGA_BLIT_RECT | DGA_BLIT_RECT_TRANS;
+	      if (currentMode->flags &
+		  (DGA_PIXMAP_AVAILABLE | DGA_FILL_RECT |
+		   DGA_BLIT_RECT | DGA_BLIT_RECT_TRANS))
+		  currentMode->flags   &= ~DGA_CONCURRENT_ACCESS;
+	    }
+	    if (pMode->Flags & V_DBLSCAN)
+		currentMode->flags     |= DGA_DOUBLESCAN;
+	    if (pMode->Flags & V_INTERLACE)
+	        currentMode->flags     |= DGA_INTERLACED;
+
+	    currentMode->byteOrder      = pScrn->imageByteOrder;
+	    currentMode->depth          = depth;
+	    currentMode->bitsPerPixel   = bitsPerPixel;
+	    currentMode->red_mask       = red;
+	    currentMode->green_mask     = green;
+	    currentMode->blue_mask      = blue;
+	    currentMode->visualClass    = visualClass;
+	    currentMode->viewportWidth  = pMode->HDisplay;
+	    currentMode->viewportHeight = pMode->VDisplay;
+	    currentMode->xViewportStep  = 8;
+	    currentMode->yViewportStep  = 1;
+	    currentMode->viewportFlags  = DGA_FLIP_RETRACE;
+	    currentMode->offset         = 0;
+	    currentMode->address        = (unsigned char*)info->LinearAddr;
+	    currentMode->bytesPerScanline = pitch * Bpp;
+	    currentMode->imageWidth     = pitch;
+	    currentMode->imageHeight    = (info->FbMapSize
+					   / currentMode->bytesPerScanline);
+	    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);
+	    (*num)++;
+	}
+
+	pMode = pMode->next;
+	if (pMode == firstMode)
+	    break;
+    }
+
+    if (secondPitch) {
+	secondPitch = 0;
+	goto SECOND_PASS;
+    }
+
+    return modes;
+}
+
+Bool RADEONDGAInit(ScreenPtr pScreen)
+{
+    ScrnInfoPtr    pScrn = xf86Screens[pScreen->myNum];
+    RADEONInfoPtr  info  = RADEONPTR(pScrn);
+    DGAModePtr     modes = NULL;
+    int            num   = 0;
+
+    /* 8 */
+    modes = RADEONSetupDGAMode(pScrn, modes, &num, 8, 8,
+			       (pScrn->bitsPerPixel == 8),
+				((pScrn->bitsPerPixel != 8)
+				 ? 0 : pScrn->displayWidth),
+			       0, 0, 0, PseudoColor);
+
+    /* 15 */
+    modes = RADEONSetupDGAMode(pScrn, modes, &num, 16, 15,
+			       (pScrn->bitsPerPixel == 16),
+			       ((pScrn->depth != 15)
+				? 0 : pScrn->displayWidth),
+			       0x7c00, 0x03e0, 0x001f, TrueColor);
+
+    modes = RADEONSetupDGAMode(pScrn, modes, &num, 16, 15,
+			       (pScrn->bitsPerPixel == 16),
+			       ((pScrn->depth != 15)
+				? 0 : pScrn->displayWidth),
+			       0x7c00, 0x03e0, 0x001f, DirectColor);
+
+    /* 16 */
+    modes = RADEONSetupDGAMode(pScrn, modes, &num, 16, 16,
+			       (pScrn->bitsPerPixel == 16),
+			       ((pScrn->depth != 16)
+				? 0 : pScrn->displayWidth),
+			       0xf800, 0x07e0, 0x001f, TrueColor);
+
+    modes = RADEONSetupDGAMode(pScrn, modes, &num, 16, 16,
+			       (pScrn->bitsPerPixel == 16),
+			       ((pScrn->depth != 16)
+				? 0 : pScrn->displayWidth),
+			       0xf800, 0x07e0, 0x001f, DirectColor);
+
+    /* 32 */
+    modes = RADEONSetupDGAMode(pScrn, modes, &num, 32, 24,
+			       (pScrn->bitsPerPixel == 32),
+			       ((pScrn->bitsPerPixel != 32)
+				? 0 : pScrn->displayWidth),
+			       0xff0000, 0x00ff00, 0x0000ff, TrueColor);
+
+    modes = RADEONSetupDGAMode(pScrn, modes, &num, 32, 24,
+			       (pScrn->bitsPerPixel == 32),
+			       ((pScrn->bitsPerPixel != 32)
+				? 0 : pScrn->displayWidth),
+			       0xff0000, 0x00ff00, 0x0000ff, DirectColor);
+
+    info->numDGAModes = num;
+    info->DGAModes    = modes;
+
+    info->DGAFuncs.OpenFramebuffer       = RADEON_OpenFramebuffer;
+    info->DGAFuncs.CloseFramebuffer      = NULL;
+    info->DGAFuncs.SetMode               = RADEON_SetMode;
+    info->DGAFuncs.SetViewport           = RADEON_SetViewport;
+    info->DGAFuncs.GetViewport           = RADEON_GetViewport;
+
+    info->DGAFuncs.Sync                  = NULL;
+    info->DGAFuncs.FillRect              = NULL;
+    info->DGAFuncs.BlitRect              = NULL;
+    info->DGAFuncs.BlitTransRect         = NULL;
+
+    if (info->accel) {
+	info->DGAFuncs.Sync              = info->accel->Sync;
+	if (info->accel->SetupForSolidFill &&
+	    info->accel->SubsequentSolidFillRect)
+	    info->DGAFuncs.FillRect      = RADEON_FillRect;
+	if (info->accel->SetupForScreenToScreenCopy &&
+	    info->accel->SubsequentScreenToScreenCopy) {
+	    info->DGAFuncs.BlitRect      = RADEON_BlitRect;
+	    info->DGAFuncs.BlitTransRect = RADEON_BlitTransRect;
+	}
+    }
+
+    return DGAInit(pScreen, &info->DGAFuncs, modes, num);
+}
+
+static Bool RADEON_SetMode(ScrnInfoPtr pScrn, DGAModePtr pMode)
+{
+    static RADEONFBLayout  SavedLayouts[MAXSCREENS];
+    int                    indx = pScrn->pScreen->myNum;
+    RADEONInfoPtr          info = RADEONPTR(pScrn);
+
+    if (!pMode) { /* restore the original mode */
+	/* put the ScreenParameters back */
+	if (info->DGAactive)
+	    memcpy(&info->CurrentLayout, &SavedLayouts[indx],
+		   sizeof(RADEONFBLayout));
+
+	pScrn->currentMode = info->CurrentLayout.mode;
+
+	RADEONSwitchMode(indx, pScrn->currentMode, 0);
+#ifdef XF86DRI
+    	if (info->directRenderingEnabled) {
+	    RADEONCP_STOP(pScrn, info);
+    	}
+#endif
+	if (info->accelOn)
+	    RADEONEngineInit(pScrn);
+#ifdef XF86DRI
+    	if (info->directRenderingEnabled) {
+	    RADEONCP_START(pScrn, info);
+    	}
+#endif
+	RADEONAdjustFrame(indx, 0, 0, 0);
+	info->DGAactive = FALSE;
+    } else {
+	if (!info->DGAactive) {  /* save the old parameters */
+	    memcpy(&SavedLayouts[indx], &info->CurrentLayout,
+		   sizeof(RADEONFBLayout));
+	    info->DGAactive = TRUE;
+	}
+
+	info->CurrentLayout.bitsPerPixel = pMode->bitsPerPixel;
+	info->CurrentLayout.depth        = pMode->depth;
+	info->CurrentLayout.displayWidth = (pMode->bytesPerScanline /
+					    (pMode->bitsPerPixel >> 3));
+	info->CurrentLayout.pixel_bytes  = pMode->bitsPerPixel / 8;
+	info->CurrentLayout.pixel_code   = (pMode->bitsPerPixel != 16
+					    ? pMode->bitsPerPixel
+					    : pMode->depth);
+	/* RADEONModeInit() will set the mode field */
+
+	RADEONSwitchMode(indx, pMode->mode, 0);
+
+#ifdef XF86DRI
+    	if (info->directRenderingEnabled) {
+	    RADEONCP_STOP(pScrn, info);
+    	}
+#endif
+	if (info->accelOn)
+	    RADEONEngineInit(pScrn);
+#ifdef XF86DRI
+    	if (info->directRenderingEnabled) {
+	    RADEONCP_START(pScrn, info);
+    	}
+#endif
+    }
+
+    return TRUE;
+}
+
+static int RADEON_GetViewport(ScrnInfoPtr pScrn)
+{
+    RADEONInfoPtr  info = RADEONPTR(pScrn);
+
+    return info->DGAViewportStatus;
+}
+
+static void RADEON_SetViewport(ScrnInfoPtr pScrn, int x, int y, int flags)
+{
+    RADEONInfoPtr  info = RADEONPTR(pScrn);
+
+    RADEONAdjustFrame(pScrn->pScreen->myNum, x, y, flags);
+    info->DGAViewportStatus = 0;  /* FIXME */
+}
+
+static void RADEON_FillRect(ScrnInfoPtr pScrn,
+			    int x, int y, int w, int h,
+			    unsigned long color)
+{
+    RADEONInfoPtr  info = RADEONPTR(pScrn);
+
+    (*info->accel->SetupForSolidFill)(pScrn, color, GXcopy, (CARD32)(~0));
+    (*info->accel->SubsequentSolidFillRect)(pScrn, x, y, w, h);
+
+    if (pScrn->bitsPerPixel == info->CurrentLayout.bitsPerPixel)
+	SET_SYNC_FLAG(info->accel);
+}
+
+static void RADEON_BlitRect(ScrnInfoPtr pScrn,
+			    int srcx, int srcy, int w, int h,
+			    int dstx, int dsty)
+{
+    RADEONInfoPtr  info = RADEONPTR(pScrn);
+    int            xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
+    int            ydir = (srcy < dsty) ? -1 : 1;
+
+    (*info->accel->SetupForScreenToScreenCopy)(pScrn, xdir, ydir,
+					       GXcopy, (CARD32)(~0), -1);
+    (*info->accel->SubsequentScreenToScreenCopy)(pScrn, srcx, srcy,
+						 dstx, dsty, w, h);
+
+    if (pScrn->bitsPerPixel == info->CurrentLayout.bitsPerPixel)
+	SET_SYNC_FLAG(info->accel);
+}
+
+static void RADEON_BlitTransRect(ScrnInfoPtr pScrn,
+				 int srcx, int srcy, int w, int h,
+				 int dstx, int dsty, unsigned long color)
+{
+    RADEONInfoPtr  info = RADEONPTR(pScrn);
+    int            xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
+    int            ydir = (srcy < dsty) ? -1 : 1;
+
+    info->XAAForceTransBlit = TRUE;
+
+    (*info->accel->SetupForScreenToScreenCopy)(pScrn, xdir, ydir,
+					       GXcopy, (CARD32)(~0), color);
+
+    info->XAAForceTransBlit = FALSE;
+
+    (*info->accel->SubsequentScreenToScreenCopy)(pScrn, srcx, srcy,
+						 dstx, dsty, w, h);
+
+    if (pScrn->bitsPerPixel == info->CurrentLayout.bitsPerPixel)
+	SET_SYNC_FLAG(info->accel);
+}
+
+static Bool RADEON_OpenFramebuffer(ScrnInfoPtr pScrn,
+				   char **name,
+				   unsigned char **mem,
+				   int *size, int *offset, int *flags)
+{
+    RADEONInfoPtr  info = RADEONPTR(pScrn);
+
+    *name   = NULL;             /* no special device */
+    *mem    = (unsigned char*)info->LinearAddr;
+    *size   = info->FbMapSize;
+    *offset = 0;
+    *flags  = 0; /* DGA_NEED_ROOT; -- don't need root, just /dev/mem access */
+
+    return TRUE;
+}