Add mga server

2026-10-18 00:42:40 +00:00 · 2003-09-18 20:47:43 +00:00 · 2003-09-18 20:47:43 +00:00 · 07ab15d61d
commit 07ab15d61d
parent b260825e88
5 changed files with 637 additions and 0 deletions
--- a/hw/kdrive/mga/mgadraw.c
+++ b/hw/kdrive/mga/mgadraw.c
@ -0,0 +1,188 @@
+/*
+ * $Id$
+ *
+ * Copyright © 2003 Anders Carlsson
+ *
+ * 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 Anders Carlsson not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Anders Carlsson makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * ANDERS CARLSSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL ANDERS CARLSSON 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.
+ */
+/* $Header$ */
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "mga.h"
+
+static VOL8 *mmio;
+int fifo_size;
+
+void
+mgaWaitAvail (int n)
+{
+    int i;
+
+    if (fifo_size < n) {
+      while ((fifo_size = MGA_IN32 (mmio, MGA_REG_FIFOSTATUS) & 0xff) < n)
+	;
+    }
+    
+    fifo_size -= n;
+}
+
+void
+mgaWaitIdle (void)
+{
+    while (MGA_IN32 (mmio, MGA_REG_STATUS) & 0x10000);
+}
+
+static Bool
+mgaSetup (ScreenPtr pScreen, int wait)
+{
+  KdScreenPriv (pScreen);
+  mgaScreenInfo (pScreenPriv);
+  mgaCardInfo (pScreenPriv);
+
+  fifo_size = 0;
+  mmio = mgac->reg_base;
+
+  if (!mmio)
+    return FALSE;
+
+  mgaWaitAvail (wait + 6);
+  MGA_OUT32 (mmio, MGA_REG_PITCH, mgas->pitch);
+  MGA_OUT32 (mmio, MGA_REG_DSTORG, 0);
+  MGA_OUT32 (mmio, MGA_REG_MACCESS, mgas->pw);
+  MGA_OUT32 (mmio, MGA_REG_CXBNDRY, 0xffff0000);
+  MGA_OUT32 (mmio, MGA_REG_YTOP, 0x00000000);
+  MGA_OUT32 (mmio, MGA_REG_YBOT, 0x007fffff);
+}
+
+Bool
+mgaPrepareSolid (DrawablePtr pDrawable, int alu, Pixel pm, Pixel fg)
+{
+    int cmd;
+
+    cmd = MGA_OPCOD_TRAP | MGA_DWGCTL_SOLID | MGA_DWGCTL_ARZERO | MGA_DWGCTL_SGNZERO |
+	MGA_DWGCTL_SHIFTZERO;
+    /* XXX */
+    cmd |= (12 << 16);
+
+    mgaSetup (pDrawable->pScreen, 4);
+    MGA_OUT32 (mmio, MGA_REG_DWGCTL, cmd);
+    MGA_OUT32 (mmio, MGA_REG_FCOL, fg);
+    MGA_OUT32 (mmio, MGA_REG_PLNWT, pm);
+    return TRUE;
+}
+
+void
+mgaSolid (int x1, int y1, int x2, int y2)
+{
+    mgaWaitAvail (2);
+    MGA_OUT32 (mmio, MGA_REG_FXBNDRY, (x2 << 16) | x1 & 0xffff);
+    MGA_OUT32 (mmio, MGA_REG_YDSTLEN | MGA_REG_EXEC, (y1 << 16) | (y2 - y1));
+}
+
+void
+mgaDoneSolid (void)
+{
+}
+
+Bool
+mgaPrepareCopy (DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable, int	dx, int dy, int alu, Pixel pm)
+{
+    return FALSE;
+}
+
+void
+mgaCopy (int srcX, int srcY, int dstX, int dstY, int w, int h)
+{
+}
+
+void
+mgaDoneCopy (void)
+{
+}
+
+KaaScreenPrivRec    mgaKaa = {
+    mgaPrepareSolid,
+    mgaSolid,
+    mgaDoneSolid,
+
+    mgaPrepareCopy,
+    mgaCopy,
+    mgaDoneCopy,
+};
+
+Bool
+mgaDrawInit (ScreenPtr pScreen)
+{
+    KdScreenPriv(pScreen);
+
+    if (!kaaDrawInit (pScreen, &mgaKaa))
+	return FALSE;
+
+    return TRUE;
+}
+
+void
+mgaDrawEnable (ScreenPtr pScreen)
+{
+    KdScreenPriv (pScreen);
+    mgaScreenInfo (pScreenPriv);
+
+    mgas->pitch = pScreenPriv->screen->width;
+
+    switch (pScreenPriv->screen->fb[0].depth) {
+    case 8:
+      mgas->pw = MGA_PW8;
+      break;
+    case 16:
+      mgas->pw = MGA_PW16;
+      break;
+    case 24:
+      mgas->pw = MGA_PW24;
+      break;
+    case 32:
+      mgas->pw = MGA_PW32;
+      break;
+    default:
+      FatalError ("unsupported pixel format");
+    }
+
+    KdMarkSync (pScreen);
+}
+
+void
+mgaDrawDisable (ScreenPtr pScreen)
+{
+}
+
+void
+mgaDrawFini (ScreenPtr pScreen)
+{
+}
+
+void
+mgaDrawSync (ScreenPtr pScreen)
+{
+    KdScreenPriv (pScreen);
+    mgaCardInfo (pScreenPriv);
+
+    mmio = mgac->reg_base;
+
+    mgaWaitIdle ();
+}