diff options
Diffstat (limited to 'linux/ioctl.c')
| -rw-r--r-- | linux/ioctl.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/linux/ioctl.c b/linux/ioctl.c new file mode 100644 index 00000000..886ef661 --- /dev/null +++ b/linux/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/kernel/ioctl.c,v 1.3 1999/08/30 13:05:00 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/ioctl.c,v 1.1 1999/09/25 14:38:01 dawes Exp $ + * + */ + +#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; +} |