diff options
Diffstat (limited to 'drivers/char/drm/drm_sysfs.c')
| -rw-r--r-- | drivers/char/drm/drm_sysfs.c | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/drivers/char/drm/drm_sysfs.c b/drivers/char/drm/drm_sysfs.c deleted file mode 100644 index 0b9f98a7eb1..00000000000 --- a/drivers/char/drm/drm_sysfs.c +++ /dev/null @@ -1,130 +0,0 @@ - -/* - * drm_sysfs.c - Modifications to drm_sysfs_class.c to support - * extra sysfs attribute from DRM. Normal drm_sysfs_class - * does not allow adding attributes. - * - * Copyright (c) 2004 Jon Smirl <jonsmirl@gmail.com> - * Copyright (c) 2003-2004 Greg Kroah-Hartman <greg@kroah.com> - * Copyright (c) 2003-2004 IBM Corp. - * - * This file is released under the GPLv2 - * - */ - -#include <linux/config.h> -#include <linux/device.h> -#include <linux/kdev_t.h> -#include <linux/err.h> - -#include "drm_core.h" -#include "drmP.h" - -/* Display the version of drm_core. This doesn't work right in current design */ -static ssize_t version_show(struct class *dev, char *buf) -{ - return sprintf(buf, "%s %d.%d.%d %s\n", CORE_NAME, CORE_MAJOR, - CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE); -} - -static CLASS_ATTR(version, S_IRUGO, version_show, NULL); - -/** - * drm_sysfs_create - create a struct drm_sysfs_class structure - * @owner: pointer to the module that is to "own" this struct drm_sysfs_class - * @name: pointer to a string for the name of this class. - * - * This is used to create a struct drm_sysfs_class pointer that can then be used - * in calls to drm_sysfs_device_add(). - * - * Note, the pointer created here is to be destroyed when finished by making a - * call to drm_sysfs_destroy(). - */ -struct class *drm_sysfs_create(struct module *owner, char *name) -{ - struct class *class; - - class = class_create(owner, name); - if (!class) - return class; - - class_create_file(class, &class_attr_version); - return class; -} - -/** - * drm_sysfs_destroy - destroys a struct drm_sysfs_class structure - * @cs: pointer to the struct drm_sysfs_class that is to be destroyed - * - * Note, the pointer to be destroyed must have been created with a call to - * drm_sysfs_create(). - */ -void drm_sysfs_destroy(struct class *class) -{ - if ((class == NULL) || (IS_ERR(class))) - return; - - class_remove_file(class, &class_attr_version); - class_destroy(class); -} - -static ssize_t show_dri(struct class_device *class_device, char *buf) -{ - drm_device_t * dev = ((drm_head_t *)class_get_devdata(class_device))->dev; - if (dev->driver->dri_library_name) - return dev->driver->dri_library_name(dev, buf); - return snprintf(buf, PAGE_SIZE, "%s\n", dev->driver->pci_driver.name); -} - -static struct class_device_attribute class_device_attrs[] = { - __ATTR(dri_library_name, S_IRUGO, show_dri, NULL), -}; - -/** - * drm_sysfs_device_add - adds a class device to sysfs for a character driver - * @cs: pointer to the struct class that this device should be registered to. - * @dev: the dev_t for the device to be added. - * @device: a pointer to a struct device that is assiociated with this class device. - * @fmt: string for the class device's name - * - * A struct class_device will be created in sysfs, registered to the specified - * class. A "dev" file will be created, showing the dev_t for the device. The - * pointer to the struct class_device will be returned from the call. Any further - * sysfs files that might be required can be created using this pointer. - * Note: the struct class passed to this function must have previously been - * created with a call to drm_sysfs_create(). - */ -struct class_device *drm_sysfs_device_add(struct class *cs, drm_head_t *head) -{ - struct class_device *class_dev; - int i; - - class_dev = class_device_create(cs, NULL, - MKDEV(DRM_MAJOR, head->minor), - &(head->dev->pdev)->dev, - "card%d", head->minor); - if (!class_dev) - return NULL; - - class_set_devdata(class_dev, head); - - for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) - class_device_create_file(class_dev, &class_device_attrs[i]); - return class_dev; -} - -/** - * drm_sysfs_device_remove - removes a class device that was created with drm_sysfs_device_add() - * @dev: the dev_t of the device that was previously registered. - * - * This call unregisters and cleans up a class device that was created with a - * call to drm_sysfs_device_add() - */ -void drm_sysfs_device_remove(struct class_device *class_dev) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) - class_device_remove_file(class_dev, &class_device_attrs[i]); - class_device_unregister(class_dev); -} |
