diff options
Diffstat (limited to 'linux/drm_fops.h')
| -rw-r--r-- | linux/drm_fops.h | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/linux/drm_fops.h b/linux/drm_fops.h deleted file mode 100644 index 0e91190a..00000000 --- a/linux/drm_fops.h +++ /dev/null @@ -1,153 +0,0 @@ -/** - * \file drm_fops.h - * File operations for DRM - * - * \author Rickard E. (Rik) Faith <faith@valinux.com> - * \author Daryll Strauss <daryll@valinux.com> - * \author Gareth Hughes <gareth@valinux.com> - */ - -/* - * Created: Mon Jan 4 08:58:31 1999 by faith@valinux.com - * - * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * 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 - * VA LINUX SYSTEMS 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. - */ - -#include "drmP.h" -#include <linux/poll.h> - - -/** - * Called whenever a process opens /dev/drm. - * - * \param inode device inode. - * \param filp file pointer. - * \param dev device. - * \return zero on success or a negative number on failure. - * - * Creates and initializes a drm_file structure for the file private data in \p - * filp and add it into the double linked list in \p dev. - */ -int DRM(open_helper)(struct inode *inode, struct file *filp, drm_device_t *dev) -{ - int minor = iminor(inode); - drm_file_t *priv; - int ret; - - if (filp->f_flags & O_EXCL) return -EBUSY; /* No exclusive opens */ - if (!DRM(cpu_valid)()) return -EINVAL; - - DRM_DEBUG("pid = %d, minor = %d\n", current->pid, minor); - - priv = DRM(alloc)(sizeof(*priv), DRM_MEM_FILES); - if(!priv) return -ENOMEM; - - memset(priv, 0, sizeof(*priv)); - filp->private_data = priv; - priv->uid = current->euid; - priv->pid = current->pid; - priv->minor = minor; - priv->dev = dev; - priv->ioctl_count = 0; - priv->authenticated = capable(CAP_SYS_ADMIN); - priv->lock_count = 0; - - if (dev->fn_tbl.open_helper) { - ret=dev->fn_tbl.open_helper(dev, priv); - if (ret < 0) - goto out_free; - } - - down(&dev->struct_sem); - if (!dev->file_last) { - priv->next = NULL; - priv->prev = NULL; - dev->file_first = priv; - dev->file_last = priv; - } else { - priv->next = NULL; - priv->prev = dev->file_last; - dev->file_last->next = priv; - dev->file_last = priv; - } - up(&dev->struct_sem); - -#ifdef __alpha__ - /* - * Default the hose - */ - if (!dev->hose) { - struct pci_dev *pci_dev; - pci_dev = pci_find_class(PCI_CLASS_DISPLAY_VGA << 8, NULL); - if (pci_dev) dev->hose = pci_dev->sysdata; - if (!dev->hose) { - struct pci_bus *b = pci_bus_b(pci_root_buses.next); - if (b) dev->hose = b->sysdata; - } - } -#endif - - return 0; -out_free: - DRM(free)(priv, sizeof(*priv), DRM_MEM_FILES); - filp->private_data=NULL; - return ret; -} - -/** No-op. */ -int DRM(flush)(struct file *filp) -{ - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->dev; - - DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", - current->pid, (long)old_encode_dev(dev->device), dev->open_count); - return 0; -} - -/** No-op. */ -int DRM(fasync)(int fd, struct file *filp, int on) -{ - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->dev; - int retcode; - - DRM_DEBUG("fd = %d, device = 0x%lx\n", fd, (long)old_encode_dev(dev->device)); - retcode = fasync_helper(fd, filp, on, &dev->buf_async); - if (retcode < 0) return retcode; - return 0; -} - -/** No-op. */ -unsigned int DRM(poll)(struct file *filp, struct poll_table_struct *wait) -{ - return 0; -} - - -/** No-op. */ -ssize_t DRM(read)(struct file *filp, char __user *buf, size_t count, loff_t *off) -{ - return 0; -} |