From 6677e2a10b820a5ccfd375cc627b8e41453a71da Mon Sep 17 00:00:00 2001 From: Adam Jackson Date: Wed, 19 Jul 2006 16:19:25 -0400 Subject: Delete the pre-core DRM code with extreme prejudice. --- linux/drm_stub.h | 358 ------------------------------------------------------- 1 file changed, 358 deletions(-) delete mode 100644 linux/drm_stub.h (limited to 'linux/drm_stub.h') diff --git a/linux/drm_stub.h b/linux/drm_stub.h deleted file mode 100644 index a09f08b8..00000000 --- a/linux/drm_stub.h +++ /dev/null @@ -1,358 +0,0 @@ -/** - * \file drm_stub.h - * Stub support - * - * \author Rickard E. (Rik) Faith - */ - -/* - * Created: Fri Jan 19 10:48:35 2001 by faith@acm.org - * - * Copyright 2001 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 - * 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. - */ - -#include "drmP.h" - -static unsigned int cards_limit = 16; /* Enough for one machine */ -static unsigned int debug = 0; /* 1 to enable debug output */ - -MODULE_AUTHOR( DRIVER_AUTHOR ); -MODULE_DESCRIPTION( DRIVER_DESC ); -MODULE_LICENSE("GPL and additional rights"); -MODULE_PARM_DESC(cards_limit, "Maximum number of graphics cards"); -MODULE_PARM_DESC(debug, "Enable debug output"); - -module_param(cards_limit, int, 0444); -module_param(debug, int, 0666); - -drm_global_t *DRM(global); - -/** - * File \c open operation. - * - * \param inode device inode. - * \param filp file pointer. - * - * Puts the dev->fops corresponding to the device minor number into - * \p filp, call the \c open method, and restore the file operations. - */ -static int stub_open(struct inode *inode, struct file *filp) -{ - drm_device_t *dev = NULL; - int minor = iminor(inode); - int err = -ENODEV; - struct file_operations *old_fops; - - DRM_DEBUG("\n"); - - if (!((minor >= 0) && (minor < DRM(global)->cards_limit))) - return -ENODEV; - - dev = DRM(global)->minors[minor].dev; - if (!dev) - return -ENODEV; - - old_fops = filp->f_op; - filp->f_op = fops_get(dev->fops); - if (filp->f_op->open && (err = filp->f_op->open(inode, filp))) { - fops_put(filp->f_op); - filp->f_op = fops_get(old_fops); - } - fops_put(old_fops); - - return err; -} - -/** File operations structure */ -static struct file_operations DRM(stub_fops) = { - .owner = THIS_MODULE, - .open = stub_open -}; - - -/** - * Get a device minor number. - * - * \param pdev PCI device structure - * \param ent entry from the PCI ID table with device type flags - * \return negative number on failure. - * - * Search an empty entry and initialize it to the given parameters, and - * create the proc init entry via proc_init(). - */ -static int get_minor(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - struct class_device *dev_class; - drm_device_t *dev; - int ret; - int minor; - drm_minor_t *minors = &DRM(global)->minors[0]; - - DRM_DEBUG("\n"); - - for (minor = 0; minor < DRM(global)->cards_limit; minor++, minors++) { - if (minors->class == DRM_MINOR_FREE) { - - DRM_DEBUG("assigning minor %d\n", minor); - dev = DRM(calloc)(1, sizeof(*dev), DRM_MEM_STUB); - if(!dev) - return -ENOMEM; - - *minors = (drm_minor_t){.dev = dev, .class = DRM_MINOR_PRIMARY}; - dev->minor = minor; - if ((ret = DRM(fill_in_dev)(dev, pdev, ent))) { - printk (KERN_ERR "DRM: Fill_in_dev failed.\n"); - goto err_g1; - } - if ((ret = DRM(proc_init)(dev, minor, DRM(global)->proc_root, &minors->dev_root))) { - printk (KERN_ERR "DRM: Failed to initialize /proc/dri.\n"); - goto err_g1; - } - if (!DRM(fb_loaded)) { - pci_set_drvdata(pdev, dev); - pci_request_regions(pdev, DRIVER_NAME); - pci_enable_device(pdev); - } - dev_class = DRM(sysfs_device_add)(DRM(global)->drm_class, - MKDEV(DRM_MAJOR, minor), DRM_PCI_DEV(pdev), "card%d", minor); - if (IS_ERR(dev_class)) { - printk (KERN_ERR "DRM: Error sysfs_device_add.\n"); - ret = PTR_ERR(dev_class); - goto err_g2; - } - - DRM_DEBUG("new primary minor assigned %d\n", minor); - return 0; - } - } - DRM_ERROR("out of minors\n"); - return -ENOMEM; -err_g2: - if (!DRM(fb_loaded)) { - pci_set_drvdata(pdev, NULL); - pci_release_regions(pdev); - pci_disable_device(pdev); - } - DRM(proc_cleanup)(minor, DRM(global)->proc_root, minors->dev_root); -err_g1: - *minors = (drm_minor_t){.dev = NULL, .class = DRM_MINOR_FREE}; - DRM(free)(dev, sizeof(*dev), DRM_MEM_STUB); - return ret; -} - -/** - * Get a secondary minor number. - * - * \param dev device data structure - * \param sec-minor structure to hold the assigned minor - * \return negative number on failure. - * - * Search an empty entry and initialize it to the given parameters, and - * create the proc init entry via proc_init(). This routines assigns - * minor numbers to secondary heads of multi-headed cards - */ -int DRM(get_secondary_minor)(drm_device_t *dev, drm_minor_t **sec_minor) -{ - drm_minor_t *minors = &DRM(global)->minors[0]; - struct class_device *dev_class; - int ret; - int minor; - - DRM_DEBUG("\n"); - - for (minor = 0; minor < DRM(global)->cards_limit; minor++, minors++) { - if (minors->class == DRM_MINOR_FREE) { - - *minors = (drm_minor_t){.dev = dev, .class = DRM_MINOR_SECONDARY}; - if ((ret = DRM(proc_init)(dev, minor, DRM(global)->proc_root, &minors->dev_root))) { - printk (KERN_ERR "DRM: Failed to initialize /proc/dri.\n"); - goto err_g1; - } - - dev_class = DRM(sysfs_device_add)(DRM(global)->drm_class, - MKDEV(DRM_MAJOR, minor), DRM_PCI_DEV(dev->pdev), "card%d", minor); - if (IS_ERR(dev_class)) { - printk (KERN_ERR "DRM: Error sysfs_device_add.\n"); - ret = PTR_ERR(dev_class); - goto err_g2; - } - *sec_minor = minors; - - DRM_DEBUG("new secondary minor assigned %d\n", minor); - return 0; - } - } - DRM_ERROR("out of minors\n"); - return -ENOMEM; -err_g2: - DRM(proc_cleanup)(minor, DRM(global)->proc_root, minors->dev_root); -err_g1: - *minors = (drm_minor_t){.dev = NULL, .class = DRM_MINOR_FREE}; - DRM(free)(dev, sizeof(*dev), DRM_MEM_STUB); - return ret; -} - -/** - * Put a device minor number. - * - * \param dev device data structure - * \return always zero - * - * Cleans up the proc resources. If it is the last minor then release the foreign - * "drm" data, otherwise unregisters the "drm" data, frees the dev list and - * unregisters the character device. - */ -int DRM(put_minor)(drm_device_t *dev) -{ - drm_minor_t *minors = &DRM(global)->minors[dev->minor]; - int i; - - DRM_DEBUG("release primary minor %d\n", dev->minor); - - DRM(proc_cleanup)(dev->minor, DRM(global)->proc_root, minors->dev_root); - DRM(sysfs_device_remove)(MKDEV(DRM_MAJOR, dev->minor)); - - *minors = (drm_minor_t){.dev = NULL, .class = DRM_MINOR_FREE}; - DRM(free)(dev, sizeof(*dev), DRM_MEM_STUB); - - /* if any device pointers are non-NULL we are not the last module */ - for (i = 0; i < DRM(global)->cards_limit; i++) { - if (DRM(global)->minors[i].class != DRM_MINOR_FREE) { - DRM_DEBUG("inter_module_put called\n"); - inter_module_put("drm"); - return 0; - } - } - DRM_DEBUG("unregistering inter_module \n"); - inter_module_unregister("drm"); - remove_proc_entry("dri", NULL); - DRM(sysfs_destroy)(DRM(global)->drm_class); - - unregister_chrdev(DRM_MAJOR, "drm"); - - DRM(free)(DRM(global)->minors, sizeof(*DRM(global)->minors) * - DRM(global)->cards_limit, DRM_MEM_STUB); - DRM(free)(DRM(global), sizeof(*DRM(global)), DRM_MEM_STUB); - DRM(global) = NULL; - - return 0; -} - -/** - * Put a secondary minor number. - * - * \param sec_minor - structure to be released - * \return always zero - * - * Cleans up the proc resources. Not legal for this to be the - * last minor released. - * - */ -int DRM(put_secondary_minor)(drm_minor_t *sec_minor) -{ - int minor = sec_minor - &DRM(global)->minors[0]; - - DRM_DEBUG("release secondary minor %d\n", minor); - - DRM(proc_cleanup)(minor, DRM(global)->proc_root, sec_minor->dev_root); - DRM(sysfs_device_remove)(MKDEV(DRM_MAJOR, minor)); - - *sec_minor = (drm_minor_t){.dev = NULL, .class = DRM_MINOR_FREE}; - - return 0; -} - -/** - * Register. - * - * \param pdev - PCI device structure - * \param ent entry from the PCI ID table with device type flags - * \return zero on success or a negative number on failure. - * - * Attempt to gets inter module "drm" information. If we are first - * then register the character device and inter module information. - * Try and register, if we fail to register, backout previous work. - */ -int DRM(probe)(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - drm_global_t *global; - int ret = -ENOMEM; - - DRM_DEBUG("\n"); - - /* use the inter_module_get to check - as if the same module - registers chrdev twice it succeeds */ - global = (drm_global_t *)inter_module_get("drm"); - if (global) { - DRM(global) = global; - global = NULL; - } else { - DRM_DEBUG("first probe\n"); - - global = DRM(calloc)(1, sizeof(*global), DRM_MEM_STUB); - if(!global) - return -ENOMEM; - - global->cards_limit = (cards_limit < DRM_MAX_MINOR + 1 ? cards_limit : DRM_MAX_MINOR + 1); - global->minors = DRM(calloc)(global->cards_limit, - sizeof(*global->minors), DRM_MEM_STUB); - if(!global->minors) - goto err_p1; - - if (register_chrdev(DRM_MAJOR, "drm", &DRM(stub_fops))) - goto err_p1; - - global->drm_class = DRM(sysfs_create)(THIS_MODULE, "drm"); - if (IS_ERR(global->drm_class)) { - printk (KERN_ERR "DRM: Error creating drm class.\n"); - ret = PTR_ERR(global->drm_class); - goto err_p2; - } - - global->proc_root = create_proc_entry("dri", S_IFDIR, NULL); - if (!global->proc_root) { - DRM_ERROR("Cannot create /proc/dri\n"); - ret = -1; - goto err_p3; - } - DRM_DEBUG("calling inter_module_register\n"); - inter_module_register("drm", THIS_MODULE, global); - - DRM(global) = global; - } - if ((ret = get_minor(pdev, ent))) { - if (global) - goto err_p3; - return ret; - } - return 0; -err_p3: - DRM(sysfs_destroy)(global->drm_class); -err_p2: - unregister_chrdev(DRM_MAJOR, "drm"); - DRM(free)(global->minors, sizeof(*global->minors) * global->cards_limit, DRM_MEM_STUB); -err_p1: - DRM(free)(global, sizeof(*global), DRM_MEM_STUB); - DRM(global) = NULL; - return ret; -} -- cgit v1.2.3