Via Unichrome/cle266 driver (Erdi Chen)

1 files changed, 140 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/unichrome/xf86drmVIA.c b/src/mesa/drivers/dri/unichrome/xf86drmVIA.c
new file mode 100644
index 00000000000..e39bdf745f1
--- /dev/null
+++ b/src/mesa/drivers/dri/unichrome/xf86drmVIA.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2003 S3 Graphics, Inc. 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
+ * VIA, S3 GRAPHICS, 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.
+ */
+
+#ifdef XFree86Server
+# include "xf86.h"
+# include "xf86_OSproc.h"
+# include "xf86_ansic.h"
+# define _DRM_MALLOC xalloc
+# define _DRM_FREE   xfree
+# ifndef XFree86LOADER
+#  include <sys/mman.h>
+# endif
+#else
+# include <stdio.h>
+# include <stdlib.h>
+# include <unistd.h>
+# include <string.h>
+# include <ctype.h>
+# include <fcntl.h>
+# include <errno.h>
+# include <signal.h>
+# include <sys/types.h>
+# include <sys/ioctl.h>
+# include <sys/mman.h>
+# include <sys/time.h>
+# ifdef DRM_USE_MALLOC
+#  define _DRM_MALLOC malloc
+#  define _DRM_FREE   free
+extern int xf86InstallSIGIOHandler(int fd, void (*f)(int, void *), void *);
+extern int xf86RemoveSIGIOHandler(int fd);
+# else
+#  include <X11/Xlibint.h>
+#  define _DRM_MALLOC Xmalloc
+#  define _DRM_FREE   Xfree
+# endif
+#endif
+
+/* Not all systems have MAP_FAILED defined */
+#ifndef MAP_FAILED
+#define MAP_FAILED ((void *)-1)
+#endif
+
+#ifdef __linux__
+#include <sys/sysmacros.h>	/* for makedev() */
+#endif
+#include "xf86drm.h"
+#include "xf86drmVIA.h"
+#include "drm.h"
+#include "via_common.h"
+int drmVIAAgpInit(int fd, int offset, int size)
+{
+    drm_via_agp_t agp;
+    agp.offset = offset;
+    agp.size = size;
+
+    if (ioctl(fd, DRM_IOCTL_VIA_AGP_INIT, &agp) < 0) {
+         return -errno;
+    }
+    else {
+        return 0;
+    }
+}
+
+int drmVIAFBInit(int fd, int offset, int size)
+{
+    drm_via_fb_t fb;
+    fb.offset = offset;
+    fb.size = size;
+
+    if (ioctl(fd, DRM_IOCTL_VIA_FB_INIT, &fb) < 0) {
+	return -errno;
+    }
+    else
+	return 0;
+}
+
+int drmVIAInitMAP(int fd, drmVIAInit *info)
+{
+    drm_via_init_t init;
+
+    memset(&init, 0, sizeof(drm_via_init_t));
+    init.func = VIA_INIT_MAP;  
+    init.sarea_priv_offset = info->sarea_priv_offset;  
+    init.fb_offset = info->fb_offset;
+    init.mmio_offset = info->mmio_offset;
+    init.agpAddr = info->agpAddr;
+   
+    if (ioctl(fd, DRM_IOCTL_VIA_MAP_INIT, &init ) < 0) {
+        return -errno;
+    }
+    else
+        return 0;
+}
+
+int drmVIAAllocateDMA(int fd, drmVIADMABuf *buf)
+{
+    if (drmAddMap(fd, 0, buf->size,
+		   DRM_SHM, 0,
+		   &buf->index) < 0) {
+		return -errno;
+    }
+    
+    if (drmMap(fd,(drmHandle)buf->index,
+		buf->size,(drmAddressPtr)(&buf->address)) < 0) {
+	return -errno;
+    }
+    
+    memset(buf->address, 0, buf->size);
+	
+    return 0;
+}
+
+int drmVIAReleaseDMA(int fd, drmVIADMABuf *buf)
+{	
+    if (drmUnmap((drmAddress)(buf->address), buf->size) < 0)
+	return -errno;
+    
+    return 0;
+}