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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/gpu/drm/drm_sysfs.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/drivers/gpu/drm/drm_sysfs.c')
-rw-r--r-- | ANDROID_3.4.5/drivers/gpu/drm/drm_sysfs.c | 566 |
1 files changed, 0 insertions, 566 deletions
diff --git a/ANDROID_3.4.5/drivers/gpu/drm/drm_sysfs.c b/ANDROID_3.4.5/drivers/gpu/drm/drm_sysfs.c deleted file mode 100644 index 5a7bd51f..00000000 --- a/ANDROID_3.4.5/drivers/gpu/drm/drm_sysfs.c +++ /dev/null @@ -1,566 +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/gfp.h> -#include <linux/err.h> -#include <linux/export.h> - -#include "drm_sysfs.h" -#include "drm_core.h" -#include "drmP.h" - -#define to_drm_minor(d) container_of(d, struct drm_minor, kdev) -#define to_drm_connector(d) container_of(d, struct drm_connector, kdev) - -static struct device_type drm_sysfs_device_minor = { - .name = "drm_minor" -}; - -/** - * drm_class_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_class_suspend(struct device *dev, pm_message_t state) -{ - if (dev->type == &drm_sysfs_device_minor) { - struct drm_minor *drm_minor = to_drm_minor(dev); - struct drm_device *drm_dev = drm_minor->dev; - - if (drm_minor->type == DRM_MINOR_LEGACY && - !drm_core_check_feature(drm_dev, DRIVER_MODESET) && - drm_dev->driver->suspend) - return drm_dev->driver->suspend(drm_dev, state); - } - return 0; -} - -/** - * drm_class_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_class_resume(struct device *dev) -{ - if (dev->type == &drm_sysfs_device_minor) { - struct drm_minor *drm_minor = to_drm_minor(dev); - struct drm_device *drm_dev = drm_minor->dev; - - if (drm_minor->type == DRM_MINOR_LEGACY && - !drm_core_check_feature(drm_dev, DRIVER_MODESET) && - drm_dev->driver->resume) - return drm_dev->driver->resume(drm_dev); - } - return 0; -} - -static char *drm_devnode(struct device *dev, umode_t *mode) -{ - return kasprintf(GFP_KERNEL, "dri/%s", dev_name(dev)); -} - -static CLASS_ATTR_STRING(version, S_IRUGO, - CORE_NAME " " - __stringify(CORE_MAJOR) "." - __stringify(CORE_MINOR) "." - __stringify(CORE_PATCHLEVEL) " " - CORE_DATE); - -/** - * 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_class_suspend; - class->resume = drm_class_resume; - - err = class_create_file(class, &class_attr_version.attr); - if (err) - goto err_out_class; - - class->devnode = drm_devnode; - - 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.attr); - class_destroy(drm_class); -} - -/** - * 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) -{ - memset(dev, 0, sizeof(struct device)); - return; -} - -/* - * Connector properties - */ -static ssize_t status_show(struct device *device, - struct device_attribute *attr, - char *buf) -{ - struct drm_connector *connector = to_drm_connector(device); - enum drm_connector_status status; - int ret; - - ret = mutex_lock_interruptible(&connector->dev->mode_config.mutex); - if (ret) - return ret; - - status = connector->funcs->detect(connector, true); - mutex_unlock(&connector->dev->mode_config.mutex); - - return snprintf(buf, PAGE_SIZE, "%s\n", - drm_get_connector_status_name(status)); -} - -static ssize_t dpms_show(struct device *device, - struct device_attribute *attr, - char *buf) -{ - struct drm_connector *connector = to_drm_connector(device); - struct drm_device *dev = connector->dev; - uint64_t dpms_status; - int ret; - - ret = drm_connector_property_get_value(connector, - dev->mode_config.dpms_property, - &dpms_status); - if (ret) - return 0; - - return snprintf(buf, PAGE_SIZE, "%s\n", - drm_get_dpms_name((int)dpms_status)); -} - -static ssize_t enabled_show(struct device *device, - struct device_attribute *attr, - char *buf) -{ - struct drm_connector *connector = to_drm_connector(device); - - return snprintf(buf, PAGE_SIZE, "%s\n", connector->encoder ? "enabled" : - "disabled"); -} - -static ssize_t edid_show(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, char *buf, loff_t off, - size_t count) -{ - struct device *connector_dev = container_of(kobj, struct device, kobj); - struct drm_connector *connector = to_drm_connector(connector_dev); - unsigned char *edid; - size_t size; - - if (!connector->edid_blob_ptr) - return 0; - - edid = connector->edid_blob_ptr->data; - size = connector->edid_blob_ptr->length; - if (!edid) - return 0; - - if (off >= size) - return 0; - - if (off + count > size) - count = size - off; - memcpy(buf, edid + off, count); - - return count; -} - -static ssize_t modes_show(struct device *device, - struct device_attribute *attr, - char *buf) -{ - struct drm_connector *connector = to_drm_connector(device); - struct drm_display_mode *mode; - int written = 0; - - list_for_each_entry(mode, &connector->modes, head) { - written += snprintf(buf + written, PAGE_SIZE - written, "%s\n", - mode->name); - } - - return written; -} - -static ssize_t subconnector_show(struct device *device, - struct device_attribute *attr, - char *buf) -{ - struct drm_connector *connector = to_drm_connector(device); - struct drm_device *dev = connector->dev; - struct drm_property *prop = NULL; - uint64_t subconnector; - int is_tv = 0; - int ret; - - switch (connector->connector_type) { - case DRM_MODE_CONNECTOR_DVII: - prop = dev->mode_config.dvi_i_subconnector_property; - break; - case DRM_MODE_CONNECTOR_Composite: - case DRM_MODE_CONNECTOR_SVIDEO: - case DRM_MODE_CONNECTOR_Component: - case DRM_MODE_CONNECTOR_TV: - prop = dev->mode_config.tv_subconnector_property; - is_tv = 1; - break; - default: - DRM_ERROR("Wrong connector type for this property\n"); - return 0; - } - - if (!prop) { - DRM_ERROR("Unable to find subconnector property\n"); - return 0; - } - - ret = drm_connector_property_get_value(connector, prop, &subconnector); - if (ret) - return 0; - - return snprintf(buf, PAGE_SIZE, "%s", is_tv ? - drm_get_tv_subconnector_name((int)subconnector) : - drm_get_dvi_i_subconnector_name((int)subconnector)); -} - -static ssize_t select_subconnector_show(struct device *device, - struct device_attribute *attr, - char *buf) -{ - struct drm_connector *connector = to_drm_connector(device); - struct drm_device *dev = connector->dev; - struct drm_property *prop = NULL; - uint64_t subconnector; - int is_tv = 0; - int ret; - - switch (connector->connector_type) { - case DRM_MODE_CONNECTOR_DVII: - prop = dev->mode_config.dvi_i_select_subconnector_property; - break; - case DRM_MODE_CONNECTOR_Composite: - case DRM_MODE_CONNECTOR_SVIDEO: - case DRM_MODE_CONNECTOR_Component: - case DRM_MODE_CONNECTOR_TV: - prop = dev->mode_config.tv_select_subconnector_property; - is_tv = 1; - break; - default: - DRM_ERROR("Wrong connector type for this property\n"); - return 0; - } - - if (!prop) { - DRM_ERROR("Unable to find select subconnector property\n"); - return 0; - } - - ret = drm_connector_property_get_value(connector, prop, &subconnector); - if (ret) - return 0; - - return snprintf(buf, PAGE_SIZE, "%s", is_tv ? - drm_get_tv_select_name((int)subconnector) : - drm_get_dvi_i_select_name((int)subconnector)); -} - -static struct device_attribute connector_attrs[] = { - __ATTR_RO(status), - __ATTR_RO(enabled), - __ATTR_RO(dpms), - __ATTR_RO(modes), -}; - -/* These attributes are for both DVI-I connectors and all types of tv-out. */ -static struct device_attribute connector_attrs_opt1[] = { - __ATTR_RO(subconnector), - __ATTR_RO(select_subconnector), -}; - -static struct bin_attribute edid_attr = { - .attr.name = "edid", - .attr.mode = 0444, - .size = 0, - .read = edid_show, -}; - -/** - * drm_sysfs_connector_add - add an connector to sysfs - * @connector: connector to add - * - * Create an connector device in sysfs, along with its associated connector - * properties (so far, connection status, dpms, mode list & edid) and - * generate a hotplug event so userspace knows there's a new connector - * available. - * - * Note: - * This routine should only be called *once* for each DRM minor registered. - * A second call for an already registered device will trigger the BUG_ON - * below. - */ -int drm_sysfs_connector_add(struct drm_connector *connector) -{ - struct drm_device *dev = connector->dev; - int attr_cnt = 0; - int opt_cnt = 0; - int i; - int ret = 0; - - /* We shouldn't get called more than once for the same connector */ - BUG_ON(device_is_registered(&connector->kdev)); - - connector->kdev.parent = &dev->primary->kdev; - connector->kdev.class = drm_class; - connector->kdev.release = drm_sysfs_device_release; - - DRM_DEBUG("adding \"%s\" to sysfs\n", - drm_get_connector_name(connector)); - - dev_set_name(&connector->kdev, "card%d-%s", - dev->primary->index, drm_get_connector_name(connector)); - ret = device_register(&connector->kdev); - - if (ret) { - DRM_ERROR("failed to register connector device: %d\n", ret); - goto out; - } - - /* Standard attributes */ - - for (attr_cnt = 0; attr_cnt < ARRAY_SIZE(connector_attrs); attr_cnt++) { - ret = device_create_file(&connector->kdev, &connector_attrs[attr_cnt]); - if (ret) - goto err_out_files; - } - - /* Optional attributes */ - /* - * In the long run it maybe a good idea to make one set of - * optionals per connector type. - */ - switch (connector->connector_type) { - case DRM_MODE_CONNECTOR_DVII: - case DRM_MODE_CONNECTOR_Composite: - case DRM_MODE_CONNECTOR_SVIDEO: - case DRM_MODE_CONNECTOR_Component: - case DRM_MODE_CONNECTOR_TV: - for (opt_cnt = 0; opt_cnt < ARRAY_SIZE(connector_attrs_opt1); opt_cnt++) { - ret = device_create_file(&connector->kdev, &connector_attrs_opt1[opt_cnt]); - if (ret) - goto err_out_files; - } - break; - default: - break; - } - - ret = sysfs_create_bin_file(&connector->kdev.kobj, &edid_attr); - if (ret) - goto err_out_files; - - /* Let userspace know we have a new connector */ - drm_sysfs_hotplug_event(dev); - - return 0; - -err_out_files: - for (i = 0; i < opt_cnt; i++) - device_remove_file(&connector->kdev, &connector_attrs_opt1[i]); - for (i = 0; i < attr_cnt; i++) - device_remove_file(&connector->kdev, &connector_attrs[i]); - device_unregister(&connector->kdev); - -out: - return ret; -} -EXPORT_SYMBOL(drm_sysfs_connector_add); - -/** - * drm_sysfs_connector_remove - remove an connector device from sysfs - * @connector: connector to remove - * - * Remove @connector and its associated attributes from sysfs. Note that - * the device model core will take care of sending the "remove" uevent - * at this time, so we don't need to do it. - * - * Note: - * This routine should only be called if the connector was previously - * successfully registered. If @connector hasn't been registered yet, - * you'll likely see a panic somewhere deep in sysfs code when called. - */ -void drm_sysfs_connector_remove(struct drm_connector *connector) -{ - int i; - - if (!connector->kdev.parent) - return; - DRM_DEBUG("removing \"%s\" from sysfs\n", - drm_get_connector_name(connector)); - - for (i = 0; i < ARRAY_SIZE(connector_attrs); i++) - device_remove_file(&connector->kdev, &connector_attrs[i]); - sysfs_remove_bin_file(&connector->kdev.kobj, &edid_attr); - device_unregister(&connector->kdev); - connector->kdev.parent = NULL; -} -EXPORT_SYMBOL(drm_sysfs_connector_remove); - -/** - * drm_sysfs_hotplug_event - generate a DRM uevent - * @dev: DRM device - * - * Send a uevent for the DRM device specified by @dev. Currently we only - * set HOTPLUG=1 in the uevent environment, but this could be expanded to - * deal with other types of events. - */ -void drm_sysfs_hotplug_event(struct drm_device *dev) -{ - char *event_string = "HOTPLUG=1"; - char *envp[] = { event_string, NULL }; - - DRM_DEBUG("generating hotplug event\n"); - - kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, envp); -} -EXPORT_SYMBOL(drm_sysfs_hotplug_event); - -/** - * 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; - char *minor_str; - - minor->kdev.parent = minor->dev->dev; - - minor->kdev.class = drm_class; - minor->kdev.release = drm_sysfs_device_release; - minor->kdev.devt = minor->device; - minor->kdev.type = &drm_sysfs_device_minor; - if (minor->type == DRM_MINOR_CONTROL) - minor_str = "controlD%d"; - else if (minor->type == DRM_MINOR_RENDER) - minor_str = "renderD%d"; - else - minor_str = "card%d"; - - dev_set_name(&minor->kdev, minor_str, minor->index); - - err = device_register(&minor->kdev); - if (err) { - DRM_ERROR("device add failed: %d\n", err); - goto err_out; - } - - return 0; - -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) -{ - if (minor->kdev.parent) - device_unregister(&minor->kdev); - minor->kdev.parent = NULL; -} - - -/** - * drm_class_device_register - Register a struct device in the drm class. - * - * @dev: pointer to struct device to register. - * - * @dev should have all relevant members pre-filled with the exception - * of the class member. In particular, the device_type member must - * be set. - */ - -int drm_class_device_register(struct device *dev) -{ - dev->class = drm_class; - return device_register(dev); -} -EXPORT_SYMBOL_GPL(drm_class_device_register); - -void drm_class_device_unregister(struct device *dev) -{ - return device_unregister(dev); -} -EXPORT_SYMBOL_GPL(drm_class_device_unregister); |