1 files changed, 97 insertions, 0 deletions
diff --git a/src/mesa/drivers/ggi/default/genkgi_mode.c b/src/mesa/drivers/ggi/default/genkgi_mode.c
new file mode 100644
index 0000000000..938024789f
--- /dev/null
+++ b/src/mesa/drivers/ggi/default/genkgi_mode.c
@@ -0,0 +1,97 @@
+/* $Id: genkgi_mode.c,v 1.4 2000/01/07 08:34:44 jtaylor Exp $
+******************************************************************************
+
+   display-fbdev-kgicon-generic-mesa
+
+   Copyright (C) 1999 Jon Taylor [taylorj@ggi-project.org]
+
+   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 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.
+
+******************************************************************************
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+
+#include <ggi/internal/ggi-dl.h>
+#include <ggi/mesa/ggimesa_int.h>
+#include <ggi/mesa/debug.h>
+#include "genkgi.h"
+
+int GGIMesa_genkgi_getapi(ggi_visual *vis, int num, char *apiname, char *arguments)
+{
+	struct genkgi_priv_mesa *priv = GENKGI_PRIV_MESA(vis);
+	
+	GGIMESADPRINT_CORE("Entered mesa_genkgi_getapi, num=%d\n", num);
+	
+	strcpy(arguments, "");
+
+	switch(num) 
+	{
+		case 0:
+		if (priv->have_accel)
+		{
+			strcpy(apiname, priv->accel);
+			return 0;
+		}
+		break;
+	}
+	return -1;
+}
+
+int GGIMesa_genkgi_flush(ggi_visual *vis, int x, int y, int w, int h, int tryflag)
+{
+	struct genkgi_priv_mesa *priv = GENKGI_PRIV_MESA(vis);
+	int junkval; 
+
+	priv->oldpriv->kgicommand_ptr += getpagesize(); 
+	(kgiu32)(priv->oldpriv->kgicommand_ptr) &= 0xfffff000;
+	junkval = *((int *)(priv->oldpriv->kgicommand_ptr));
+	
+	/* Check if we are now in the last page, and reset the
+	 * FIFO if so.  We can't use the last page to send
+	 * more commands, since there's no page after it that
+	 * we can touch to fault in the last page's commands.
+	 * 
+	 * FIXME: This will be replaced with a flush-and-reset handler
+	 * on the end-of-buffer pagefault at some point....
+	 * 
+	 */
+	if ((priv->oldpriv->kgicommand_ptr - priv->oldpriv->mapped_kgicommand)
+	    >= (priv->oldpriv->kgicommand_buffersize - getpagesize()))
+	{
+		munmap(priv->oldpriv->mapped_kgicommand, priv->oldpriv->kgicommand_buffersize);
+		if ((priv->oldpriv->mapped_kgicommand = 
+		     mmap(NULL, 
+			  priv->oldpriv->kgicommand_buffersize, 
+			  PROT_READ | PROT_WRITE,
+			  MAP_SHARED,
+			  priv->oldpriv->fd_kgicommand, 
+			  0)) == MAP_FAILED)
+		{
+			ggiPanic("Failed to remap kgicommand!");
+		}
+		priv->oldpriv->kgicommand_ptr = priv->oldpriv->mapped_kgicommand;
+	}
+	return 0;
+}