diff options
Diffstat (limited to 'linux-core/drm_sysfs.c')
-rw-r--r-- | linux-core/drm_sysfs.c | 351 |
1 files changed, 14 insertions, 337 deletions
diff --git a/linux-core/drm_sysfs.c b/linux-core/drm_sysfs.c index f5366e8c..6de93679 100644 --- a/linux-core/drm_sysfs.c +++ b/linux-core/drm_sysfs.c @@ -36,9 +36,8 @@ static int drm_sysfs_suspend(struct device *dev, pm_message_t state) printk(KERN_ERR "%s\n", __FUNCTION__); - if (drm_minor->type == DRM_MINOR_CONTROL) - if (drm_dev->driver->suspend) - return drm_dev->driver->suspend(drm_dev, state); + if (drm_dev->driver->suspend) + return drm_dev->driver->suspend(drm_dev, state); return 0; } @@ -55,9 +54,8 @@ 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_minor->type == DRM_MINOR_CONTROL) - if (drm_dev->driver->resume) - return drm_dev->driver->resume(drm_dev); + if (drm_dev->driver->resume) + return drm_dev->driver->resume(drm_dev); return 0; } @@ -133,6 +131,10 @@ static ssize_t show_dri(struct device *device, struct device_attribute *attr, 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 @@ -146,316 +148,6 @@ static void drm_sysfs_device_release(struct device *dev) return; } -/* - * Connector properties - */ -static ssize_t status_show(struct device *device, - struct device_attribute *attr, - char *buf) -{ - struct drm_connector *connector = container_of(device, struct drm_connector, kdev); - return snprintf(buf, PAGE_SIZE, "%s", - drm_get_connector_status_name(connector->funcs->detect(connector))); -} - -static ssize_t dpms_show(struct device *device, - struct device_attribute *attr, - char *buf) -{ - struct drm_connector *connector = container_of(device, struct drm_connector, kdev); - 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", 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 = container_of(device, struct drm_connector, kdev); - - if (connector->encoder) - return snprintf(buf, PAGE_SIZE, "enabled"); - else - return snprintf(buf, PAGE_SIZE, "disabled"); -} - -static ssize_t edid_show(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 = container_of(connector_dev, struct drm_connector, - kdev); - 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 = container_of(device, struct drm_connector, kdev); - 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 = container_of(device, struct drm_connector, kdev); - struct drm_device *dev = connector->dev; - struct drm_property *prop = NULL; - uint64_t subconnector; - 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: - prop = dev->mode_config.tv_subconnector_property; - 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", drm_get_subconnector_name((int)subconnector)); -} - -static ssize_t select_subconnector_show(struct device *device, - struct device_attribute *attr, - char *buf) -{ - struct drm_connector *connector = container_of(device, struct drm_connector, kdev); - struct drm_device *dev = connector->dev; - struct drm_property *prop = NULL; - uint64_t subconnector; - 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: - prop = dev->mode_config.tv_select_subconnector_property; - 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", drm_get_select_subconnector_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", - .size = 128, - .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 ret = 0, i, j; - - /* 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)); - - snprintf(connector->kdev.bus_id, BUS_ID_SIZE, "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 (i = 0; i < ARRAY_SIZE(connector_attrs); i++) { - ret = device_create_file(&connector->kdev, &connector_attrs[i]); - if (ret) - goto err_out_files; - } - - /* Optional attributes */ - /* On 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: - for (i = 0; i < ARRAY_SIZE(connector_attrs_opt1); i++) { - ret = device_create_file(&connector->kdev, &connector_attrs_opt1[i]); - 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: - if (i > 0) - for (j = 0; j < i; j++) - 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; - - 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); -} -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); - -static struct device_attribute dri_attrs[] = { - __ATTR(dri_library_name, S_IRUGO, show_dri, NULL), -}; - /** * drm_sysfs_device_add - adds a class device to sysfs for a character driver * @dev: DRM device to be added @@ -464,11 +156,6 @@ static struct device_attribute dri_attrs[] = { * 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). - * - * 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_device_add(struct drm_minor *minor) { @@ -480,28 +167,18 @@ int drm_sysfs_device_add(struct drm_minor *minor) minor->kdev.class = drm_class; minor->kdev.release = drm_sysfs_device_release; minor->kdev.devt = minor->device; - 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"; + minor_str = "card%d"; snprintf(minor->kdev.bus_id, BUS_ID_SIZE, minor_str, minor->index); - /* Shouldn't register more than once */ - BUG_ON(device_is_registered(&minor->kdev)); - - DRM_DEBUG("registering DRM device \"%s\"\n", minor->kdev.bus_id); - err = device_register(&minor->kdev); if (err) { DRM_ERROR("device add failed: %d\n", err); goto err_out; } - for (i = 0; i < ARRAY_SIZE(dri_attrs); i++) { - err = device_create_file(&minor->kdev, &dri_attrs[i]); + for (i = 0; i < ARRAY_SIZE(device_attrs); i++) { + err = device_create_file(&minor->kdev, &device_attrs[i]); if (err) goto err_out_files; } @@ -511,7 +188,7 @@ int drm_sysfs_device_add(struct drm_minor *minor) err_out_files: if (i > 0) for (j = 0; j < i; j++) - device_remove_file(&minor->kdev, &dri_attrs[j]); + device_remove_file(&minor->kdev, &device_attrs[j]); device_unregister(&minor->kdev); err_out: @@ -529,7 +206,7 @@ void drm_sysfs_device_remove(struct drm_minor *minor) { int i; - for (i = 0; i < ARRAY_SIZE(dri_attrs); i++) - device_remove_file(&minor->kdev, &dri_attrs[i]); + for (i = 0; i < ARRAY_SIZE(device_attrs); i++) + device_remove_file(&minor->kdev, &device_attrs[i]); device_unregister(&minor->kdev); } |