X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fchar%2Fdrm%2Fdrm_sysfs.c;h=cc8e2ebe128c55056b6a29ec66a060cbe7372168;hb=refs%2Fheads%2Fvserver;hp=6c9a830bac1be4486b38a5d587616ba9aa528243;hpb=87fc8d1bb10cd459024a742c6a10961fefcef18f;p=linux-2.6.git diff --git a/drivers/char/drm/drm_sysfs.c b/drivers/char/drm/drm_sysfs.c index 6c9a830ba..cc8e2ebe1 100644 --- a/drivers/char/drm/drm_sysfs.c +++ b/drivers/char/drm/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 @@ -11,52 +12,18 @@ * */ -#include #include #include #include #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 { - struct list_head node; - dev_t dev; - struct class_device class_dev; -}; -#define to_simple_dev(d) container_of(d, struct simple_dev, class_dev) - -static LIST_HEAD(simple_dev_list); -static DEFINE_SPINLOCK(simple_dev_list_lock); - -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) { - return sprintf(buf, "%s %d.%d.%d %s\n", DRIVER_NAME, DRIVER_MAJOR, - DRIVER_MINOR, DRIVER_PATCHLEVEL, DRIVER_DATE); + 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); @@ -72,38 +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; + err = class_create_file(class, &class_attr_version); + if (err) + goto err_out_class; - retval = class_register(&cs->class); - if (retval) - goto error; - class_create_file(&cs->class, &class_attr_version); + return class; - return cs; - - error: - kfree(cs); - return ERR_PTR(retval); +err_out_class: + class_destroy(class); +err_out: + return ERR_PTR(err); } /** @@ -113,17 +69,30 @@ 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) +{ + 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 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 @@ -132,51 +101,42 @@ void drm_sysfs_destroy(struct drm_sysfs_class *cs) * 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, dev_t dev, - struct device *device, - const char *fmt, ...) +struct class_device *drm_sysfs_device_add(struct class *cs, drm_head_t *head) { - va_list args; - struct simple_dev *s_dev = NULL; - int 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)); + class_set_devdata(class_dev, head); - s_dev->dev = dev; - s_dev->class_dev.dev = device; - s_dev->class_dev.class = &cs->class; - - va_start(args, fmt); - vsnprintf(s_dev->class_dev.class_id, BUS_ID_SIZE, fmt, args); - va_end(args); - retval = class_device_register(&s_dev->class_dev); - if (retval) - goto error; - - class_device_create_file(&s_dev->class_dev, &cs->attr); - - spin_lock(&simple_dev_list_lock); - list_add(&s_dev->node, &simple_dev_list); - spin_unlock(&simple_dev_list_lock); + for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) { + err = class_device_create_file(class_dev, + &class_device_attrs[i]); + if (err) + goto err_out_files; + } - return &s_dev->class_dev; + return class_dev; - error: - kfree(s_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); } /** @@ -186,23 +146,11 @@ struct class_device *drm_sysfs_device_add(struct drm_sysfs_class *cs, dev_t dev, * 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(dev_t dev) +void drm_sysfs_device_remove(struct class_device *class_dev) { - struct simple_dev *s_dev = NULL; - int found = 0; - - spin_lock(&simple_dev_list_lock); - list_for_each_entry(s_dev, &simple_dev_list, node) { - if (s_dev->dev == dev) { - found = 1; - break; - } - } - if (found) { - list_del(&s_dev->node); - spin_unlock(&simple_dev_list_lock); - class_device_unregister(&s_dev->class_dev); - } else { - spin_unlock(&simple_dev_list_lock); - } + 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); }