patch-2.3.18 linux/drivers/char/drm/ioctl.c

• Lines: 92
• Date: Tue Sep 7 14:51:28 1999
• Orig file: v2.3.17/linux/drivers/char/drm/ioctl.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.17/linux/drivers/char/drm/ioctl.c linux/drivers/char/drm/ioctl.c
@@ -0,0 +1,91 @@
+/* ioctl.c -- IOCTL processing for DRM -*- linux-c -*-
+ * Created: Fri Jan  8 09:01:26 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 09:27:02 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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, 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 (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 NONINFRINGEMENT.  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.
+ * 
+ * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/generic/ioctl.c,v 1.3 1999/08/30 13:05:00 faith Exp $
+ * $XFree86$
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+int drm_irq_busid(struct inode *inode, struct file *filp, unsigned int cmd,
+		  unsigned long arg)
+{
+	drm_irq_busid_t p;
+	struct pci_dev	*dev;
+
+	copy_from_user_ret(&p, (drm_irq_busid_t *)arg, sizeof(p), -EFAULT);
+	dev = pci_find_slot(p.busnum, PCI_DEVFN(p.devnum, p.funcnum));
+	if (dev) p.irq = dev->irq;
+	else	 p.irq = 0;
+	DRM_DEBUG("%d:%d:%d => IRQ %d\n",
+		  p.busnum, p.devnum, p.funcnum, p.irq);
+	copy_to_user_ret((drm_irq_busid_t *)arg, &p, sizeof(p), -EFAULT);
+	return 0;
+}
+
+int drm_getunique(struct inode *inode, struct file *filp, unsigned int cmd,
+		  unsigned long arg)
+{
+	drm_file_t	 *priv	 = filp->private_data;
+	drm_device_t	 *dev	 = priv->dev;
+	drm_unique_t	 u;
+
+	copy_from_user_ret(&u, (drm_unique_t *)arg, sizeof(u), -EFAULT);
+	if (u.unique_len >= dev->unique_len) {
+		copy_to_user_ret(u.unique, dev->unique, dev->unique_len,
+				 -EFAULT);
+	}
+	u.unique_len = dev->unique_len;
+	copy_to_user_ret((drm_unique_t *)arg, &u, sizeof(u), -EFAULT);
+	return 0;
+}
+
+int drm_setunique(struct inode *inode, struct file *filp, unsigned int cmd,
+		  unsigned long arg)
+{
+	drm_file_t	 *priv	 = filp->private_data;
+	drm_device_t	 *dev	 = priv->dev;
+	drm_unique_t	 u;
+
+	if (dev->unique_len || dev->unique) return -EBUSY;
+
+	copy_from_user_ret(&u, (drm_unique_t *)arg, sizeof(u), -EFAULT);
+	if (!u.unique_len) return -EINVAL;
+	
+	dev->unique_len = u.unique_len;
+	dev->unique	= drm_alloc(u.unique_len + 1, DRM_MEM_DRIVER);
+	copy_from_user_ret(dev->unique, u.unique, dev->unique_len,
+			   -EFAULT);
+	dev->unique[dev->unique_len] = '\0';
+
+	dev->devname = drm_alloc(strlen(dev->name) + strlen(dev->unique) + 2,
+				 DRM_MEM_DRIVER);
+	sprintf(dev->devname, "%s@%s", dev->name, dev->unique);
+
+	return 0;
+}