From 6cd8831f7accbcc3efb019d7d288c5b6cc28a230 Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <unichrome@shipmail.org>
Date: Tue, 23 Mar 2004 21:08:48 +0000
Subject: Merged via-1-2-0

---
 shared-core/via_map.c | 143 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 shared-core/via_map.c

(limited to 'shared-core/via_map.c')

diff --git a/shared-core/via_map.c b/shared-core/via_map.c
new file mode 100644
index 00000000..53260927
--- /dev/null
+++ b/shared-core/via_map.c
@@ -0,0 +1,143 @@
+/*
+ * 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.
+ */
+#define __NO_VERSION__
+#include "via.h"
+#include "drmP.h"
+#include "via_drv.h"
+
+int via_do_init_map(drm_device_t *dev, drm_via_init_t *init)
+{
+	drm_via_private_t *dev_priv;
+	unsigned int i;
+	
+	DRM_DEBUG("%s\n", __FUNCTION__);
+
+	dev_priv = DRM(alloc)(sizeof(drm_via_private_t), DRM_MEM_DRIVER);
+	if (dev_priv == NULL)
+		return -ENOMEM;
+
+	memset(dev_priv, 0, sizeof(drm_via_private_t));
+	
+	DRM_GETSAREA();
+	if (!dev_priv->sarea) {
+		DRM_ERROR("could not find sarea!\n");
+		dev->dev_private = (void *)dev_priv;
+		via_do_cleanup_map(dev);
+		return -EINVAL;
+	}
+
+	DRM_FIND_MAP(dev_priv->fb, init->fb_offset);
+	if (!dev_priv->fb) {
+		DRM_ERROR("could not find framebuffer!\n");
+		dev->dev_private = (void *)dev_priv;
+		via_do_cleanup_map(dev);
+		return -EINVAL;
+	}
+	DRM_FIND_MAP(dev_priv->mmio, init->mmio_offset);
+	if (!dev_priv->mmio) {
+		DRM_ERROR("could not find mmio region!\n");
+		dev->dev_private = (void *)dev_priv;
+		via_do_cleanup_map(dev);
+		return -EINVAL;
+	}
+	
+	dev_priv->sarea_priv =
+		(drm_via_sarea_t *)((u8 *)dev_priv->sarea->handle +
+                                    init->sarea_priv_offset);
+
+	dev_priv->agpAddr = init->agpAddr;
+
+	
+	for (i=0; i<VIA_NR_XVMC_LOCKS; ++i) 
+                DRM_INIT_WAITQUEUE( &(dev_priv->decoder_queue[i]) );
+
+	dev->dev_private = (void *)dev_priv;
+
+	return 0;
+}
+
+int via_do_cleanup_map(drm_device_t *dev)
+{
+	if (dev->dev_private) {
+
+		drm_via_private_t *dev_priv = dev->dev_private;
+
+		DRM(free)(dev_priv, sizeof(drm_via_private_t),
+                          DRM_MEM_DRIVER);
+		dev->dev_private = NULL;
+	}
+
+	return 0;
+}
+
+int via_map_init( DRM_IOCTL_ARGS )
+{
+        DRM_DEVICE;
+	drm_via_init_t init;
+
+	DRM_DEBUG("%s\n", __FUNCTION__);
+
+	DRM_COPY_FROM_USER_IOCTL(init, (drm_via_init_t *)data, sizeof(init));
+
+	switch (init.func) {
+        case VIA_INIT_MAP:
+		return via_do_init_map(dev, &init);
+        case VIA_CLEANUP_MAP:
+		return via_do_cleanup_map(dev);
+	}
+
+	return -EINVAL;
+}
+
+int via_decoder_futex( DRM_IOCTL_ARGS ) 
+{
+        DRM_DEVICE;
+        drm_via_futex_t fx;
+        volatile int *lock;
+        drm_via_private_t *dev_priv = (drm_via_private_t*) dev->dev_private;
+        drm_via_sarea_t *sAPriv = dev_priv->sarea_priv;
+        int ret = 0;
+
+        DRM_COPY_FROM_USER_IOCTL(fx, (drm_via_futex_t *) data, sizeof(fx));
+    
+        if (fx.lock > VIA_NR_XVMC_LOCKS)
+                return -EFAULT;
+
+        lock = XVMCLOCKPTR(sAPriv,fx.lock);
+
+        switch(fx.op) {
+        case VIA_FUTEX_WAIT:
+                DRM_WAIT_ON(ret, dev_priv->decoder_queue[fx.lock], 
+                            (fx.ms / 10)*(DRM_HZ/100), 
+                            *lock != fx.val);
+                return ret;
+        case VIA_FUTEX_WAKE:
+                DRM_WAKEUP( &(dev_priv->decoder_queue[fx.lock]) );
+                return 0;
+        }
+        return 0;
+}
+	    
+	
+    
-- 
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