From 0f2e1869263ef04b3bc47d9817278a555201bda8 Mon Sep 17 00:00:00 2001
From: Alan Hourihane <alanh@tungstengraphics.com>
Date: Tue, 30 Sep 2003 11:13:31 +0000
Subject: add the SiS driver - no kernel driver yet (build tested, but not
 physically tested)

---
 src/mesa/drivers/dri/sis/sis_debug.c | 158 +++++++++++++++++++++++++++++++++++
 1 file changed, 158 insertions(+)
 create mode 100644 src/mesa/drivers/dri/sis/sis_debug.c

(limited to 'src/mesa/drivers/dri/sis/sis_debug.c')

diff --git a/src/mesa/drivers/dri/sis/sis_debug.c b/src/mesa/drivers/dri/sis/sis_debug.c
new file mode 100644
index 0000000000..e950bcee01
--- /dev/null
+++ b/src/mesa/drivers/dri/sis/sis_debug.c
@@ -0,0 +1,158 @@
+/**************************************************************************
+
+Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
+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 the rights to use, copy, modify, merge, publish,
+distribute, sub license, 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 PRECISION INSIGHT AND/OR ITS 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.
+
+**************************************************************************/
+/* $XFree86: xc/lib/GL/mesa/src/drv/sis/sis_debug.c,v 1.5 2000/09/26 15:56:48 tsi Exp $ */
+
+/*
+ * Authors:
+ *    Sung-Ching Lin <sclin@sis.com.tw>
+ *
+ */
+
+/* 
+ * dump HW states, set environment variable SIS_DEBUG
+ * to enable these functions 
+ */
+
+#include <fcntl.h>
+#include <assert.h>
+
+#include "sis_context.h"
+
+/* for SiS 300/630/540 */
+#define MMIOLength (0x8FFF-0x8800+1)
+#define MMIO3DOffset (0x8800)
+#define FILE_NAME "300.dump"
+
+char *IOBase4Debug = 0;
+
+char *prevLockFile = NULL;
+int prevLockLine = 0;
+
+GLint _empty[0x10000];
+
+void
+dump_agp (void *addr, int dword_count)
+{
+  if (!getenv ("SIS_DEBUG"))
+    return;
+
+  {
+    int i;
+    FILE *file = fopen ("300agp.dump", "w");
+
+    if (file)
+      {
+	for (i = 0; i < dword_count; i++)
+	  {
+	    fprintf (file, "%f\n", *(float *) addr);
+	    ((unsigned char *) addr) += 4;
+	  }
+	fclose (file);
+      }
+  }
+}
+
+#ifndef _SOLO
+void
+d2f_once (GLcontext * ctx)
+{
+  XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+  sisContextPtr smesa = SIS_CONTEXT(ctx);
+
+  static int serialNumber = -1;
+
+  if (serialNumber == smesa->serialNumber)
+    return;
+  else
+    serialNumber = smesa->serialNumber;
+
+  d2f();
+}
+
+void
+d2f (void)
+{
+  if (!getenv ("SIS_DEBUG"))
+    return;
+
+  /* dump 0x8800 - 0x8AFF */
+  {
+    int fh;
+    int rval;
+    void *addr = IOBase4Debug + MMIO3DOffset;
+
+    assert (IOBase4Debug);
+
+    if ((fh = open (FILE_NAME, O_WRONLY | O_CREAT, S_IREAD | S_IWRITE)) != -1)
+      {
+	rval = write (fh, addr, MMIOLength);
+	assert (rval != -1);
+	close (fh);
+      }
+  }
+}
+
+/* dump to HW */
+void
+d2h (char *file_name)
+{
+  int fh;
+  int rval;
+  void *addr[MMIOLength];
+
+  if (!getenv ("SIS_DEBUG"))
+    return;
+
+  if ((fh = open (file_name, O_CREAT, S_IREAD | S_IWRITE)) != -1)
+    {
+      rval = read (fh, addr, MMIOLength);
+      assert (rval != -1);
+      close (fh);
+    }
+  memcpy (IOBase4Debug + MMIO3DOffset, addr, MMIOLength);
+
+}
+
+/* dump video memory to file  */
+void
+dvidmem (unsigned char *addr, int size)
+{
+  int fh;
+  int rval;
+  static char *file_name = "vidmem.dump";
+
+  if (!getenv ("SIS_DEBUG"))
+    return;
+
+  if ((fh = open (file_name, O_WRONLY | O_CREAT, S_IREAD | S_IWRITE)) != -1)
+    {
+      rval = write (fh, addr, size);
+      assert (rval != -1);
+      close (fh);
+    }
+}
+#endif
-- 
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