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path: root/drivers/char/drm/drm_sysfs.c
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Diffstat (limited to 'drivers/char/drm/drm_sysfs.c')
-rw-r--r--drivers/char/drm/drm_sysfs.c208
1 files changed, 0 insertions, 208 deletions
diff --git a/drivers/char/drm/drm_sysfs.c b/drivers/char/drm/drm_sysfs.c
deleted file mode 100644
index af211a0ef17..00000000000
--- a/drivers/char/drm/drm_sysfs.c
+++ /dev/null
@@ -1,208 +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/device.h>
-#include <linux/kdev_t.h>
-#include <linux/err.h>
-
-#include "drm_core.h"
-#include "drmP.h"
-
-#define to_drm_minor(d) container_of(d, struct drm_minor, kdev)
-
-/**
- * drm_sysfs_suspend - DRM class suspend hook
- * @dev: Linux device to suspend
- * @state: power state to enter
- *
- * Just figures out what the actual struct drm_device associated with
- * @dev is and calls its suspend hook, if present.
- */
-static int drm_sysfs_suspend(struct device *dev, pm_message_t state)
-{
- struct drm_minor *drm_minor = to_drm_minor(dev);
- struct drm_device *drm_dev = drm_minor->dev;
-
- if (drm_dev->driver->suspend)
- return drm_dev->driver->suspend(drm_dev, state);
-
- return 0;
-}
-
-/**
- * drm_sysfs_resume - DRM class resume hook
- * @dev: Linux device to resume
- *
- * Just figures out what the actual struct drm_device associated with
- * @dev is and calls its resume hook, if present.
- */
-static int drm_sysfs_resume(struct device *dev)
-{
- struct drm_minor *drm_minor = to_drm_minor(dev);
- struct drm_device *drm_dev = drm_minor->dev;
-
- if (drm_dev->driver->resume)
- return drm_dev->driver->resume(drm_dev);
-
- return 0;
-}
-
-/* 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 DRM 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;
- int err;
-
- class = class_create(owner, name);
- if (IS_ERR(class)) {
- err = PTR_ERR(class);
- goto err_out;
- }
-
- class->suspend = drm_sysfs_suspend;
- class->resume = drm_sysfs_resume;
-
- err = class_create_file(class, &class_attr_version);
- if (err)
- goto err_out_class;
-
- return class;
-
-err_out_class:
- class_destroy(class);
-err_out:
- return ERR_PTR(err);
-}
-
-/**
- * drm_sysfs_destroy - destroys DRM class
- *
- * Destroy the DRM device class.
- */
-void drm_sysfs_destroy(void)
-{
- if ((drm_class == NULL) || (IS_ERR(drm_class)))
- return;
- class_remove_file(drm_class, &class_attr_version);
- class_destroy(drm_class);
-}
-
-static ssize_t show_dri(struct device *device, struct device_attribute *attr,
- char *buf)
-{
- struct drm_minor *drm_minor = to_drm_minor(device);
- struct drm_device *drm_dev = drm_minor->dev;
- if (drm_dev->driver->dri_library_name)
- return drm_dev->driver->dri_library_name(drm_dev, buf);
- return snprintf(buf, PAGE_SIZE, "%s\n", drm_dev->driver->pci_driver.name);
-}
-
-static struct device_attribute device_attrs[] = {
- __ATTR(dri_library_name, S_IRUGO, show_dri, NULL),
-};
-
-/**
- * drm_sysfs_device_release - do nothing
- * @dev: Linux device
- *
- * Normally, this would free the DRM device associated with @dev, along
- * with cleaning up any other stuff. But we do that in the DRM core, so
- * this function can just return and hope that the core does its job.
- */
-static void drm_sysfs_device_release(struct device *dev)
-{
- return;
-}
-
-/**
- * drm_sysfs_device_add - adds a class device to sysfs for a character driver
- * @dev: DRM device to be added
- * @head: DRM head in question
- *
- * Add a DRM device to the DRM's device model class. We use @dev's PCI device
- * as the parent for the Linux device, and make sure it has a file containing
- * the driver we're using (for userspace compatibility).
- */
-int drm_sysfs_device_add(struct drm_minor *minor)
-{
- int err;
- int i, j;
- char *minor_str;
-
- minor->kdev.parent = &minor->dev->pdev->dev;
- minor->kdev.class = drm_class;
- minor->kdev.release = drm_sysfs_device_release;
- minor->kdev.devt = minor->device;
- minor_str = "card%d";
-
- snprintf(minor->kdev.bus_id, BUS_ID_SIZE, minor_str, minor->index);
-
- err = device_register(&minor->kdev);
- if (err) {
- DRM_ERROR("device add failed: %d\n", err);
- goto err_out;
- }
-
- for (i = 0; i < ARRAY_SIZE(device_attrs); i++) {
- err = device_create_file(&minor->kdev, &device_attrs[i]);
- if (err)
- goto err_out_files;
- }
-
- return 0;
-
-err_out_files:
- if (i > 0)
- for (j = 0; j < i; j++)
- device_remove_file(&minor->kdev, &device_attrs[i]);
- device_unregister(&minor->kdev);
-err_out:
-
- return err;
-}
-
-/**
- * drm_sysfs_device_remove - remove DRM device
- * @dev: DRM device to remove
- *
- * 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 drm_minor *minor)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(device_attrs); i++)
- device_remove_file(&minor->kdev, &device_attrs[i]);
- device_unregister(&minor->kdev);
-}