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-rw-r--r--linux-core/drmP.h9
-rw-r--r--linux-core/drm_stub.c2
-rw-r--r--linux-core/drm_sysfs.c171
3 files changed, 58 insertions, 124 deletions
diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index aa562225..f8ca3f4b 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -1130,7 +1130,7 @@ extern int drm_put_head(struct drm_head * head);
extern unsigned int drm_debug; /* 1 to enable debug output */
extern unsigned int drm_cards_limit;
extern struct drm_head **drm_heads;
-extern struct drm_sysfs_class *drm_class;
+extern struct class *drm_class;
extern struct proc_dir_entry *drm_proc_root;
extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
@@ -1163,10 +1163,9 @@ extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
/* sysfs support (drm_sysfs.c) */
struct drm_sysfs_class;
-extern struct drm_sysfs_class *drm_sysfs_create(struct module *owner,
- char *name);
-extern void drm_sysfs_destroy(struct drm_sysfs_class *cs);
-extern struct class_device *drm_sysfs_device_add(struct drm_sysfs_class *cs,
+extern struct class *drm_sysfs_create(struct module *owner, char *name);
+extern void drm_sysfs_destroy(struct class *cs);
+extern struct class_device *drm_sysfs_device_add(struct class *cs,
struct drm_head * head);
extern void drm_sysfs_device_remove(struct class_device *class_dev);
diff --git a/linux-core/drm_stub.c b/linux-core/drm_stub.c
index eba6deed..07ea91e0 100644
--- a/linux-core/drm_stub.c
+++ b/linux-core/drm_stub.c
@@ -51,7 +51,7 @@ module_param_named(cards_limit, drm_cards_limit, int, 0444);
module_param_named(debug, drm_debug, int, 0600);
struct drm_head **drm_heads;
-struct drm_sysfs_class *drm_class;
+struct class *drm_class;
struct proc_dir_entry *drm_proc_root;
static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
diff --git a/linux-core/drm_sysfs.c b/linux-core/drm_sysfs.c
index 1090e719..cf4349b0 100644
--- a/linux-core/drm_sysfs.c
+++ b/linux-core/drm_sysfs.c
@@ -1,3 +1,4 @@
+
/*
* drm_sysfs.c - Modifications to drm_sysfs_class.c to support
* extra sysfs attribute from DRM. Normal drm_sysfs_class
@@ -15,38 +16,8 @@
#include <linux/kdev_t.h>
#include <linux/err.h>
-#include "drmP.h"
#include "drm_core.h"
-
-struct drm_sysfs_class {
- struct class_device_attribute attr;
- struct class class;
-};
-#define to_drm_sysfs_class(d) container_of(d, struct drm_sysfs_class, class)
-
-struct simple_dev {
- dev_t dev;
- struct class_device class_dev;
-};
-#define to_simple_dev(d) container_of(d, struct simple_dev, class_dev)
-
-static void release_simple_dev(struct class_device *class_dev)
-{
- struct simple_dev *s_dev = to_simple_dev(class_dev);
- kfree(s_dev);
-}
-
-static ssize_t show_dev(struct class_device *class_dev, char *buf)
-{
- struct simple_dev *s_dev = to_simple_dev(class_dev);
- return print_dev_t(buf, s_dev->dev);
-}
-
-static void drm_sysfs_class_release(struct class *class)
-{
- struct drm_sysfs_class *cs = to_drm_sysfs_class(class);
- kfree(cs);
-}
+#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)
@@ -68,42 +39,27 @@ static CLASS_ATTR(version, S_IRUGO, version_show, NULL);
* Note, the pointer created here is to be destroyed when finished by making a
* call to drm_sysfs_destroy().
*/
-struct drm_sysfs_class *drm_sysfs_create(struct module *owner, char *name)
+struct class *drm_sysfs_create(struct module *owner, char *name)
{
- struct drm_sysfs_class *cs;
- int retval;
+ struct class *class;
+ int err;
- cs = kmalloc(sizeof(*cs), GFP_KERNEL);
- if (!cs) {
- retval = -ENOMEM;
- goto error;
+ class = class_create(owner, name);
+ if (IS_ERR(class)) {
+ err = PTR_ERR(class);
+ goto err_out;
}
- memset(cs, 0x00, sizeof(*cs));
-
- cs->class.name = name;
- cs->class.class_release = drm_sysfs_class_release;
- cs->class.release = release_simple_dev;
-
- cs->attr.attr.name = "dev";
- cs->attr.attr.mode = S_IRUGO;
- cs->attr.attr.owner = owner;
- cs->attr.show = show_dev;
- cs->attr.store = NULL;
-
- retval = class_register(&cs->class);
- if (retval)
- goto error;
- retval = class_create_file(&cs->class, &class_attr_version);
- if (retval)
- goto error_with_class;
-
- return cs;
-
- error_with_class:
- class_unregister(&cs->class);
- error:
- kfree(cs);
- return ERR_PTR(retval);
+
+ 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);
}
/**
@@ -113,12 +69,13 @@ struct drm_sysfs_class *drm_sysfs_create(struct module *owner, char *name)
* Note, the pointer to be destroyed must have been created with a call to
* drm_sysfs_create().
*/
-void drm_sysfs_destroy(struct drm_sysfs_class *cs)
+void drm_sysfs_destroy(struct class *class)
{
- if ((cs == NULL) || (IS_ERR(cs)))
+ if ((class == NULL) || (IS_ERR(class)))
return;
- class_unregister(&cs->class);
+ class_remove_file(class, &class_attr_version);
+ class_destroy(class);
}
static ssize_t show_dri(struct class_device *class_device, char *buf)
@@ -135,7 +92,7 @@ static struct class_device_attribute class_device_attrs[] = {
/**
* drm_sysfs_device_add - adds a class device to sysfs for a character driver
- * @cs: pointer to the struct drm_sysfs_class that this device should be registered to.
+ * @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
@@ -144,62 +101,42 @@ static struct class_device_attribute class_device_attrs[] = {
* 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 drm_sysfs_class passed to this function must have previously been
+ * 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 drm_sysfs_class *cs,
- struct drm_head * head)
+struct class_device *drm_sysfs_device_add(struct class *cs, struct drm_head *head)
{
- struct simple_dev *s_dev = NULL;
- int i, retval;
-
- if ((cs == NULL) || (IS_ERR(cs))) {
- retval = -ENODEV;
- goto error;
+ struct class_device *class_dev;
+ int i, j, err;
+
+ class_dev = class_device_create(cs, NULL,
+ MKDEV(DRM_MAJOR, head->minor),
+ &(head->dev->pdev)->dev,
+ "card%d", head->minor);
+ if (IS_ERR(class_dev)) {
+ err = PTR_ERR(class_dev);
+ goto err_out;
}
- s_dev = kmalloc(sizeof(*s_dev), GFP_KERNEL);
- if (!s_dev) {
- retval = -ENOMEM;
- goto error;
- }
- memset(s_dev, 0x00, sizeof(*s_dev));
-
- s_dev->dev = MKDEV(DRM_MAJOR, head->minor);
- s_dev->class_dev.dev = &head->dev->pdev->dev;
- s_dev->class_dev.class = &cs->class;
-
- snprintf(s_dev->class_dev.class_id, BUS_ID_SIZE, "card%d", head->minor);
- retval = class_device_register(&s_dev->class_dev);
- if (retval)
- goto error;
-
- retval = class_device_create_file(&s_dev->class_dev, &cs->attr);
- if (retval)
- goto error_with_device;
-
- class_set_devdata(&s_dev->class_dev, head);
+ class_set_devdata(class_dev, head);
for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) {
- retval = class_device_create_file(&s_dev->class_dev,
- &class_device_attrs[i]);
- if (retval)
- goto error_with_files;
+ err = class_device_create_file(class_dev,
+ &class_device_attrs[i]);
+ if (err)
+ goto err_out_files;
}
- return &s_dev->class_dev;
-
- error_with_files:
- while (i > 0)
- class_device_remove_file(&s_dev->class_dev,
- &class_device_attrs[--i]);
- class_device_remove_file(&s_dev->class_dev, &cs->attr);
- error_with_device:
- class_device_unregister(&s_dev->class_dev);
- error:
- kfree(s_dev);
+ return class_dev;
- return ERR_PTR(retval);
+err_out_files:
+ if (i > 0)
+ for (j = 0; j < i; j++)
+ class_device_remove_file(class_dev,
+ &class_device_attrs[i]);
+ class_device_unregister(class_dev);
+err_out:
+ return ERR_PTR(err);
}
/**
@@ -211,11 +148,9 @@ struct class_device *drm_sysfs_device_add(struct drm_sysfs_class *cs,
*/
void drm_sysfs_device_remove(struct class_device *class_dev)
{
- struct simple_dev *s_dev = to_simple_dev(class_dev);
int i;
for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++)
- class_device_remove_file(&s_dev->class_dev, &class_device_attrs[i]);
-
- class_device_unregister(&s_dev->class_dev);
+ class_device_remove_file(class_dev, &class_device_attrs[i]);
+ class_device_unregister(class_dev);
}