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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/gpu/drm/drm_sysfs.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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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.c566
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);