152217195SDaniel Vetter /* 252217195SDaniel Vetter * Copyright (c) 2016 Intel Corporation 352217195SDaniel Vetter * 452217195SDaniel Vetter * Permission to use, copy, modify, distribute, and sell this software and its 552217195SDaniel Vetter * documentation for any purpose is hereby granted without fee, provided that 652217195SDaniel Vetter * the above copyright notice appear in all copies and that both that copyright 752217195SDaniel Vetter * notice and this permission notice appear in supporting documentation, and 852217195SDaniel Vetter * that the name of the copyright holders not be used in advertising or 952217195SDaniel Vetter * publicity pertaining to distribution of the software without specific, 1052217195SDaniel Vetter * written prior permission. The copyright holders make no representations 1152217195SDaniel Vetter * about the suitability of this software for any purpose. It is provided "as 1252217195SDaniel Vetter * is" without express or implied warranty. 1352217195SDaniel Vetter * 1452217195SDaniel Vetter * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 1552217195SDaniel Vetter * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 1652217195SDaniel Vetter * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 1752217195SDaniel Vetter * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 1852217195SDaniel Vetter * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 1952217195SDaniel Vetter * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 2052217195SDaniel Vetter * OF THIS SOFTWARE. 2152217195SDaniel Vetter */ 2252217195SDaniel Vetter 23*8f86c82aSSimon Ser #include <drm/drm_auth.h> 2452217195SDaniel Vetter #include <drm/drm_connector.h> 2552217195SDaniel Vetter #include <drm/drm_edid.h> 269338203cSLaurent Pinchart #include <drm/drm_encoder.h> 278d70f395SHans de Goede #include <drm/drm_utils.h> 2899f45e32SDaniel Vetter #include <drm/drm_print.h> 2999f45e32SDaniel Vetter #include <drm/drm_drv.h> 3099f45e32SDaniel Vetter #include <drm/drm_file.h> 31968d81a6SJeykumar Sankaran #include <drm/drm_sysfs.h> 3299f45e32SDaniel Vetter 3399f45e32SDaniel Vetter #include <linux/uaccess.h> 3452217195SDaniel Vetter 3552217195SDaniel Vetter #include "drm_crtc_internal.h" 3652217195SDaniel Vetter #include "drm_internal.h" 3752217195SDaniel Vetter 38ae2a6da8SDaniel Vetter /** 39ae2a6da8SDaniel Vetter * DOC: overview 40ae2a6da8SDaniel Vetter * 41ae2a6da8SDaniel Vetter * In DRM connectors are the general abstraction for display sinks, and include 4284e543bcSAntonio Borneo * also fixed panels or anything else that can display pixels in some form. As 43ae2a6da8SDaniel Vetter * opposed to all other KMS objects representing hardware (like CRTC, encoder or 44ae2a6da8SDaniel Vetter * plane abstractions) connectors can be hotplugged and unplugged at runtime. 45ad093607SThierry Reding * Hence they are reference-counted using drm_connector_get() and 46ad093607SThierry Reding * drm_connector_put(). 47ae2a6da8SDaniel Vetter * 48d574528aSDaniel Vetter * KMS driver must create, initialize, register and attach at a &struct 49d574528aSDaniel Vetter * drm_connector for each such sink. The instance is created as other KMS 50aec97460SDaniel Vetter * objects and initialized by setting the following fields. The connector is 51aec97460SDaniel Vetter * initialized with a call to drm_connector_init() with a pointer to the 52aec97460SDaniel Vetter * &struct drm_connector_funcs and a connector type, and then exposed to 53aec97460SDaniel Vetter * userspace with a call to drm_connector_register(). 54ae2a6da8SDaniel Vetter * 55ae2a6da8SDaniel Vetter * Connectors must be attached to an encoder to be used. For devices that map 56ae2a6da8SDaniel Vetter * connectors to encoders 1:1, the connector should be attached at 57cde4c44dSDaniel Vetter * initialization time with a call to drm_connector_attach_encoder(). The 58d574528aSDaniel Vetter * driver must also set the &drm_connector.encoder field to point to the 59ae2a6da8SDaniel Vetter * attached encoder. 60ae2a6da8SDaniel Vetter * 61ae2a6da8SDaniel Vetter * For connectors which are not fixed (like built-in panels) the driver needs to 62ae2a6da8SDaniel Vetter * support hotplug notifications. The simplest way to do that is by using the 63ae2a6da8SDaniel Vetter * probe helpers, see drm_kms_helper_poll_init() for connectors which don't have 64ae2a6da8SDaniel Vetter * hardware support for hotplug interrupts. Connectors with hardware hotplug 65ae2a6da8SDaniel Vetter * support can instead use e.g. drm_helper_hpd_irq_event(). 66ae2a6da8SDaniel Vetter */ 67ae2a6da8SDaniel Vetter 6852217195SDaniel Vetter struct drm_conn_prop_enum_list { 6952217195SDaniel Vetter int type; 7052217195SDaniel Vetter const char *name; 7152217195SDaniel Vetter struct ida ida; 7252217195SDaniel Vetter }; 7352217195SDaniel Vetter 7452217195SDaniel Vetter /* 7552217195SDaniel Vetter * Connector and encoder types. 7652217195SDaniel Vetter */ 7752217195SDaniel Vetter static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { 7852217195SDaniel Vetter { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, 7952217195SDaniel Vetter { DRM_MODE_CONNECTOR_VGA, "VGA" }, 8052217195SDaniel Vetter { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, 8152217195SDaniel Vetter { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, 8252217195SDaniel Vetter { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, 8352217195SDaniel Vetter { DRM_MODE_CONNECTOR_Composite, "Composite" }, 8452217195SDaniel Vetter { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, 8552217195SDaniel Vetter { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, 8652217195SDaniel Vetter { DRM_MODE_CONNECTOR_Component, "Component" }, 8752217195SDaniel Vetter { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, 8852217195SDaniel Vetter { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, 8952217195SDaniel Vetter { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, 9052217195SDaniel Vetter { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, 9152217195SDaniel Vetter { DRM_MODE_CONNECTOR_TV, "TV" }, 9252217195SDaniel Vetter { DRM_MODE_CONNECTOR_eDP, "eDP" }, 9352217195SDaniel Vetter { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, 9452217195SDaniel Vetter { DRM_MODE_CONNECTOR_DSI, "DSI" }, 9552217195SDaniel Vetter { DRM_MODE_CONNECTOR_DPI, "DPI" }, 96935774cdSBrian Starkey { DRM_MODE_CONNECTOR_WRITEBACK, "Writeback" }, 97fc06bf1dSNoralf Trønnes { DRM_MODE_CONNECTOR_SPI, "SPI" }, 98757e2671SNoralf Trønnes { DRM_MODE_CONNECTOR_USB, "USB" }, 9952217195SDaniel Vetter }; 10052217195SDaniel Vetter 10152217195SDaniel Vetter void drm_connector_ida_init(void) 10252217195SDaniel Vetter { 10352217195SDaniel Vetter int i; 10452217195SDaniel Vetter 10552217195SDaniel Vetter for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) 10652217195SDaniel Vetter ida_init(&drm_connector_enum_list[i].ida); 10752217195SDaniel Vetter } 10852217195SDaniel Vetter 10952217195SDaniel Vetter void drm_connector_ida_destroy(void) 11052217195SDaniel Vetter { 11152217195SDaniel Vetter int i; 11252217195SDaniel Vetter 11352217195SDaniel Vetter for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) 11452217195SDaniel Vetter ida_destroy(&drm_connector_enum_list[i].ida); 11552217195SDaniel Vetter } 11652217195SDaniel Vetter 11752217195SDaniel Vetter /** 118b35f90f2SLaurent Pinchart * drm_get_connector_type_name - return a string for connector type 119b35f90f2SLaurent Pinchart * @type: The connector type (DRM_MODE_CONNECTOR_*) 120b35f90f2SLaurent Pinchart * 121b35f90f2SLaurent Pinchart * Returns: the name of the connector type, or NULL if the type is not valid. 122b35f90f2SLaurent Pinchart */ 123b35f90f2SLaurent Pinchart const char *drm_get_connector_type_name(unsigned int type) 124b35f90f2SLaurent Pinchart { 125b35f90f2SLaurent Pinchart if (type < ARRAY_SIZE(drm_connector_enum_list)) 126b35f90f2SLaurent Pinchart return drm_connector_enum_list[type].name; 127b35f90f2SLaurent Pinchart 128b35f90f2SLaurent Pinchart return NULL; 129b35f90f2SLaurent Pinchart } 130b35f90f2SLaurent Pinchart EXPORT_SYMBOL(drm_get_connector_type_name); 131b35f90f2SLaurent Pinchart 132b35f90f2SLaurent Pinchart /** 13352217195SDaniel Vetter * drm_connector_get_cmdline_mode - reads the user's cmdline mode 13484e543bcSAntonio Borneo * @connector: connector to query 13552217195SDaniel Vetter * 136ae2a6da8SDaniel Vetter * The kernel supports per-connector configuration of its consoles through 13752217195SDaniel Vetter * use of the video= parameter. This function parses that option and 13852217195SDaniel Vetter * extracts the user's specified mode (or enable/disable status) for a 13952217195SDaniel Vetter * particular connector. This is typically only used during the early fbdev 14052217195SDaniel Vetter * setup. 14152217195SDaniel Vetter */ 14252217195SDaniel Vetter static void drm_connector_get_cmdline_mode(struct drm_connector *connector) 14352217195SDaniel Vetter { 14452217195SDaniel Vetter struct drm_cmdline_mode *mode = &connector->cmdline_mode; 14552217195SDaniel Vetter char *option = NULL; 14652217195SDaniel Vetter 14752217195SDaniel Vetter if (fb_get_options(connector->name, &option)) 14852217195SDaniel Vetter return; 14952217195SDaniel Vetter 15052217195SDaniel Vetter if (!drm_mode_parse_command_line_for_connector(option, 15152217195SDaniel Vetter connector, 15252217195SDaniel Vetter mode)) 15352217195SDaniel Vetter return; 15452217195SDaniel Vetter 15552217195SDaniel Vetter if (mode->force) { 1566140cf20SJani Nikula DRM_INFO("forcing %s connector %s\n", connector->name, 1576140cf20SJani Nikula drm_get_connector_force_name(mode->force)); 15852217195SDaniel Vetter connector->force = mode->force; 15952217195SDaniel Vetter } 16052217195SDaniel Vetter 1610980939dSHans de Goede if (mode->panel_orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN) { 1620980939dSHans de Goede DRM_INFO("cmdline forces connector %s panel_orientation to %d\n", 1630980939dSHans de Goede connector->name, mode->panel_orientation); 1640980939dSHans de Goede drm_connector_set_panel_orientation(connector, 1650980939dSHans de Goede mode->panel_orientation); 1660980939dSHans de Goede } 1670980939dSHans de Goede 1683aeeb13dSMaxime Ripard DRM_DEBUG_KMS("cmdline mode for connector %s %s %dx%d@%dHz%s%s%s\n", 16950b0946dSMaxime Ripard connector->name, mode->name, 17052217195SDaniel Vetter mode->xres, mode->yres, 17152217195SDaniel Vetter mode->refresh_specified ? mode->refresh : 60, 17252217195SDaniel Vetter mode->rb ? " reduced blanking" : "", 17352217195SDaniel Vetter mode->margins ? " with margins" : "", 17452217195SDaniel Vetter mode->interlace ? " interlaced" : ""); 17552217195SDaniel Vetter } 17652217195SDaniel Vetter 17752217195SDaniel Vetter static void drm_connector_free(struct kref *kref) 17852217195SDaniel Vetter { 17952217195SDaniel Vetter struct drm_connector *connector = 18052217195SDaniel Vetter container_of(kref, struct drm_connector, base.refcount); 18152217195SDaniel Vetter struct drm_device *dev = connector->dev; 18252217195SDaniel Vetter 18352217195SDaniel Vetter drm_mode_object_unregister(dev, &connector->base); 18452217195SDaniel Vetter connector->funcs->destroy(connector); 18552217195SDaniel Vetter } 18652217195SDaniel Vetter 187ea497bb9SDaniel Vetter void drm_connector_free_work_fn(struct work_struct *work) 188a703c550SDaniel Vetter { 189ea497bb9SDaniel Vetter struct drm_connector *connector, *n; 190ea497bb9SDaniel Vetter struct drm_device *dev = 191ea497bb9SDaniel Vetter container_of(work, struct drm_device, mode_config.connector_free_work); 192ea497bb9SDaniel Vetter struct drm_mode_config *config = &dev->mode_config; 193ea497bb9SDaniel Vetter unsigned long flags; 194ea497bb9SDaniel Vetter struct llist_node *freed; 195a703c550SDaniel Vetter 196ea497bb9SDaniel Vetter spin_lock_irqsave(&config->connector_list_lock, flags); 197ea497bb9SDaniel Vetter freed = llist_del_all(&config->connector_free_list); 198ea497bb9SDaniel Vetter spin_unlock_irqrestore(&config->connector_list_lock, flags); 199ea497bb9SDaniel Vetter 200ea497bb9SDaniel Vetter llist_for_each_entry_safe(connector, n, freed, free_node) { 201a703c550SDaniel Vetter drm_mode_object_unregister(dev, &connector->base); 202a703c550SDaniel Vetter connector->funcs->destroy(connector); 203a703c550SDaniel Vetter } 204ea497bb9SDaniel Vetter } 205a703c550SDaniel Vetter 20652217195SDaniel Vetter /** 20752217195SDaniel Vetter * drm_connector_init - Init a preallocated connector 20852217195SDaniel Vetter * @dev: DRM device 20952217195SDaniel Vetter * @connector: the connector to init 21052217195SDaniel Vetter * @funcs: callbacks for this connector 21152217195SDaniel Vetter * @connector_type: user visible type of the connector 21252217195SDaniel Vetter * 21352217195SDaniel Vetter * Initialises a preallocated connector. Connectors should be 21452217195SDaniel Vetter * subclassed as part of driver connector objects. 21552217195SDaniel Vetter * 21652217195SDaniel Vetter * Returns: 21752217195SDaniel Vetter * Zero on success, error code on failure. 21852217195SDaniel Vetter */ 21952217195SDaniel Vetter int drm_connector_init(struct drm_device *dev, 22052217195SDaniel Vetter struct drm_connector *connector, 22152217195SDaniel Vetter const struct drm_connector_funcs *funcs, 22252217195SDaniel Vetter int connector_type) 22352217195SDaniel Vetter { 22452217195SDaniel Vetter struct drm_mode_config *config = &dev->mode_config; 22552217195SDaniel Vetter int ret; 22652217195SDaniel Vetter struct ida *connector_ida = 22752217195SDaniel Vetter &drm_connector_enum_list[connector_type].ida; 22852217195SDaniel Vetter 229ba1f665fSHaneen Mohammed WARN_ON(drm_drv_uses_atomic_modeset(dev) && 230ba1f665fSHaneen Mohammed (!funcs->atomic_destroy_state || 231ba1f665fSHaneen Mohammed !funcs->atomic_duplicate_state)); 232ba1f665fSHaneen Mohammed 2332135ea7aSThierry Reding ret = __drm_mode_object_add(dev, &connector->base, 23452217195SDaniel Vetter DRM_MODE_OBJECT_CONNECTOR, 23552217195SDaniel Vetter false, drm_connector_free); 23652217195SDaniel Vetter if (ret) 237613051daSDaniel Vetter return ret; 23852217195SDaniel Vetter 23952217195SDaniel Vetter connector->base.properties = &connector->properties; 24052217195SDaniel Vetter connector->dev = dev; 24152217195SDaniel Vetter connector->funcs = funcs; 24252217195SDaniel Vetter 2432a8d3eacSVille Syrjälä /* connector index is used with 32bit bitmasks */ 2442a8d3eacSVille Syrjälä ret = ida_simple_get(&config->connector_ida, 0, 32, GFP_KERNEL); 2452a8d3eacSVille Syrjälä if (ret < 0) { 2462a8d3eacSVille Syrjälä DRM_DEBUG_KMS("Failed to allocate %s connector index: %d\n", 2472a8d3eacSVille Syrjälä drm_connector_enum_list[connector_type].name, 2482a8d3eacSVille Syrjälä ret); 24952217195SDaniel Vetter goto out_put; 2502a8d3eacSVille Syrjälä } 25152217195SDaniel Vetter connector->index = ret; 25252217195SDaniel Vetter ret = 0; 25352217195SDaniel Vetter 25452217195SDaniel Vetter connector->connector_type = connector_type; 25552217195SDaniel Vetter connector->connector_type_id = 25652217195SDaniel Vetter ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); 25752217195SDaniel Vetter if (connector->connector_type_id < 0) { 25852217195SDaniel Vetter ret = connector->connector_type_id; 25952217195SDaniel Vetter goto out_put_id; 26052217195SDaniel Vetter } 26152217195SDaniel Vetter connector->name = 26252217195SDaniel Vetter kasprintf(GFP_KERNEL, "%s-%d", 26352217195SDaniel Vetter drm_connector_enum_list[connector_type].name, 26452217195SDaniel Vetter connector->connector_type_id); 26552217195SDaniel Vetter if (!connector->name) { 26652217195SDaniel Vetter ret = -ENOMEM; 26752217195SDaniel Vetter goto out_put_type_id; 26852217195SDaniel Vetter } 26952217195SDaniel Vetter 27052217195SDaniel Vetter INIT_LIST_HEAD(&connector->probed_modes); 27152217195SDaniel Vetter INIT_LIST_HEAD(&connector->modes); 272e73ab00eSDaniel Vetter mutex_init(&connector->mutex); 27352217195SDaniel Vetter connector->edid_blob_ptr = NULL; 2745186421cSStanislav Lisovskiy connector->epoch_counter = 0; 2752de3a078SManasi Navare connector->tile_blob_ptr = NULL; 27652217195SDaniel Vetter connector->status = connector_status_unknown; 2778d70f395SHans de Goede connector->display_info.panel_orientation = 2788d70f395SHans de Goede DRM_MODE_PANEL_ORIENTATION_UNKNOWN; 27952217195SDaniel Vetter 28052217195SDaniel Vetter drm_connector_get_cmdline_mode(connector); 28152217195SDaniel Vetter 28252217195SDaniel Vetter /* We should add connectors at the end to avoid upsetting the connector 283c2ce66daSBeatriz Martins de Carvalho * index too much. 284c2ce66daSBeatriz Martins de Carvalho */ 285613051daSDaniel Vetter spin_lock_irq(&config->connector_list_lock); 28652217195SDaniel Vetter list_add_tail(&connector->head, &config->connector_list); 28752217195SDaniel Vetter config->num_connector++; 288613051daSDaniel Vetter spin_unlock_irq(&config->connector_list_lock); 28952217195SDaniel Vetter 290935774cdSBrian Starkey if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL && 291935774cdSBrian Starkey connector_type != DRM_MODE_CONNECTOR_WRITEBACK) 2926b7e2d5cSGerd Hoffmann drm_connector_attach_edid_property(connector); 29352217195SDaniel Vetter 29452217195SDaniel Vetter drm_object_attach_property(&connector->base, 29552217195SDaniel Vetter config->dpms_property, 0); 29652217195SDaniel Vetter 29740ee6fbeSManasi Navare drm_object_attach_property(&connector->base, 29840ee6fbeSManasi Navare config->link_status_property, 29940ee6fbeSManasi Navare 0); 30040ee6fbeSManasi Navare 30166660d4cSDave Airlie drm_object_attach_property(&connector->base, 30266660d4cSDave Airlie config->non_desktop_property, 30366660d4cSDave Airlie 0); 3042de3a078SManasi Navare drm_object_attach_property(&connector->base, 3052de3a078SManasi Navare config->tile_property, 3062de3a078SManasi Navare 0); 30766660d4cSDave Airlie 30852217195SDaniel Vetter if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 30952217195SDaniel Vetter drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); 31052217195SDaniel Vetter } 31152217195SDaniel Vetter 31252217195SDaniel Vetter connector->debugfs_entry = NULL; 31352217195SDaniel Vetter out_put_type_id: 31452217195SDaniel Vetter if (ret) 315587680c1SChristophe JAILLET ida_simple_remove(connector_ida, connector->connector_type_id); 31652217195SDaniel Vetter out_put_id: 31752217195SDaniel Vetter if (ret) 318587680c1SChristophe JAILLET ida_simple_remove(&config->connector_ida, connector->index); 31952217195SDaniel Vetter out_put: 32052217195SDaniel Vetter if (ret) 32152217195SDaniel Vetter drm_mode_object_unregister(dev, &connector->base); 32252217195SDaniel Vetter 32352217195SDaniel Vetter return ret; 32452217195SDaniel Vetter } 32552217195SDaniel Vetter EXPORT_SYMBOL(drm_connector_init); 32652217195SDaniel Vetter 32752217195SDaniel Vetter /** 328100163dfSAndrzej Pietrasiewicz * drm_connector_init_with_ddc - Init a preallocated connector 329100163dfSAndrzej Pietrasiewicz * @dev: DRM device 330100163dfSAndrzej Pietrasiewicz * @connector: the connector to init 331100163dfSAndrzej Pietrasiewicz * @funcs: callbacks for this connector 332100163dfSAndrzej Pietrasiewicz * @connector_type: user visible type of the connector 333100163dfSAndrzej Pietrasiewicz * @ddc: pointer to the associated ddc adapter 334100163dfSAndrzej Pietrasiewicz * 335100163dfSAndrzej Pietrasiewicz * Initialises a preallocated connector. Connectors should be 336100163dfSAndrzej Pietrasiewicz * subclassed as part of driver connector objects. 337100163dfSAndrzej Pietrasiewicz * 338100163dfSAndrzej Pietrasiewicz * Ensures that the ddc field of the connector is correctly set. 339100163dfSAndrzej Pietrasiewicz * 340100163dfSAndrzej Pietrasiewicz * Returns: 341100163dfSAndrzej Pietrasiewicz * Zero on success, error code on failure. 342100163dfSAndrzej Pietrasiewicz */ 343100163dfSAndrzej Pietrasiewicz int drm_connector_init_with_ddc(struct drm_device *dev, 344100163dfSAndrzej Pietrasiewicz struct drm_connector *connector, 345100163dfSAndrzej Pietrasiewicz const struct drm_connector_funcs *funcs, 346100163dfSAndrzej Pietrasiewicz int connector_type, 347100163dfSAndrzej Pietrasiewicz struct i2c_adapter *ddc) 348100163dfSAndrzej Pietrasiewicz { 349100163dfSAndrzej Pietrasiewicz int ret; 350100163dfSAndrzej Pietrasiewicz 351100163dfSAndrzej Pietrasiewicz ret = drm_connector_init(dev, connector, funcs, connector_type); 352100163dfSAndrzej Pietrasiewicz if (ret) 353100163dfSAndrzej Pietrasiewicz return ret; 354100163dfSAndrzej Pietrasiewicz 355100163dfSAndrzej Pietrasiewicz /* provide ddc symlink in sysfs */ 356100163dfSAndrzej Pietrasiewicz connector->ddc = ddc; 357100163dfSAndrzej Pietrasiewicz 358100163dfSAndrzej Pietrasiewicz return ret; 359100163dfSAndrzej Pietrasiewicz } 360100163dfSAndrzej Pietrasiewicz EXPORT_SYMBOL(drm_connector_init_with_ddc); 361100163dfSAndrzej Pietrasiewicz 362100163dfSAndrzej Pietrasiewicz /** 3636b7e2d5cSGerd Hoffmann * drm_connector_attach_edid_property - attach edid property. 3646b7e2d5cSGerd Hoffmann * @connector: the connector 3656b7e2d5cSGerd Hoffmann * 3666b7e2d5cSGerd Hoffmann * Some connector types like DRM_MODE_CONNECTOR_VIRTUAL do not get a 3676b7e2d5cSGerd Hoffmann * edid property attached by default. This function can be used to 3686b7e2d5cSGerd Hoffmann * explicitly enable the edid property in these cases. 3696b7e2d5cSGerd Hoffmann */ 3706b7e2d5cSGerd Hoffmann void drm_connector_attach_edid_property(struct drm_connector *connector) 3716b7e2d5cSGerd Hoffmann { 3726b7e2d5cSGerd Hoffmann struct drm_mode_config *config = &connector->dev->mode_config; 3736b7e2d5cSGerd Hoffmann 3746b7e2d5cSGerd Hoffmann drm_object_attach_property(&connector->base, 3756b7e2d5cSGerd Hoffmann config->edid_property, 3766b7e2d5cSGerd Hoffmann 0); 3776b7e2d5cSGerd Hoffmann } 3786b7e2d5cSGerd Hoffmann EXPORT_SYMBOL(drm_connector_attach_edid_property); 3796b7e2d5cSGerd Hoffmann 3806b7e2d5cSGerd Hoffmann /** 381cde4c44dSDaniel Vetter * drm_connector_attach_encoder - attach a connector to an encoder 38252217195SDaniel Vetter * @connector: connector to attach 38352217195SDaniel Vetter * @encoder: encoder to attach @connector to 38452217195SDaniel Vetter * 38552217195SDaniel Vetter * This function links up a connector to an encoder. Note that the routing 38652217195SDaniel Vetter * restrictions between encoders and crtcs are exposed to userspace through the 38752217195SDaniel Vetter * possible_clones and possible_crtcs bitmasks. 38852217195SDaniel Vetter * 38952217195SDaniel Vetter * Returns: 39052217195SDaniel Vetter * Zero on success, negative errno on failure. 39152217195SDaniel Vetter */ 392cde4c44dSDaniel Vetter int drm_connector_attach_encoder(struct drm_connector *connector, 39352217195SDaniel Vetter struct drm_encoder *encoder) 39452217195SDaniel Vetter { 39552217195SDaniel Vetter /* 39652217195SDaniel Vetter * In the past, drivers have attempted to model the static association 39752217195SDaniel Vetter * of connector to encoder in simple connector/encoder devices using a 39852217195SDaniel Vetter * direct assignment of connector->encoder = encoder. This connection 39952217195SDaniel Vetter * is a logical one and the responsibility of the core, so drivers are 40052217195SDaniel Vetter * expected not to mess with this. 40152217195SDaniel Vetter * 40252217195SDaniel Vetter * Note that the error return should've been enough here, but a large 40352217195SDaniel Vetter * majority of drivers ignores the return value, so add in a big WARN 40452217195SDaniel Vetter * to get people's attention. 40552217195SDaniel Vetter */ 40652217195SDaniel Vetter if (WARN_ON(connector->encoder)) 40752217195SDaniel Vetter return -EINVAL; 40852217195SDaniel Vetter 40962afb4adSJosé Roberto de Souza connector->possible_encoders |= drm_encoder_mask(encoder); 41062afb4adSJosé Roberto de Souza 41152217195SDaniel Vetter return 0; 41252217195SDaniel Vetter } 413cde4c44dSDaniel Vetter EXPORT_SYMBOL(drm_connector_attach_encoder); 41452217195SDaniel Vetter 41538cb8d96SVille Syrjälä /** 41662afb4adSJosé Roberto de Souza * drm_connector_has_possible_encoder - check if the connector and encoder are 41762afb4adSJosé Roberto de Souza * associated with each other 41838cb8d96SVille Syrjälä * @connector: the connector 41938cb8d96SVille Syrjälä * @encoder: the encoder 42038cb8d96SVille Syrjälä * 42138cb8d96SVille Syrjälä * Returns: 42238cb8d96SVille Syrjälä * True if @encoder is one of the possible encoders for @connector. 42338cb8d96SVille Syrjälä */ 42438cb8d96SVille Syrjälä bool drm_connector_has_possible_encoder(struct drm_connector *connector, 42538cb8d96SVille Syrjälä struct drm_encoder *encoder) 42638cb8d96SVille Syrjälä { 42762afb4adSJosé Roberto de Souza return connector->possible_encoders & drm_encoder_mask(encoder); 42838cb8d96SVille Syrjälä } 42938cb8d96SVille Syrjälä EXPORT_SYMBOL(drm_connector_has_possible_encoder); 43038cb8d96SVille Syrjälä 43152217195SDaniel Vetter static void drm_mode_remove(struct drm_connector *connector, 43252217195SDaniel Vetter struct drm_display_mode *mode) 43352217195SDaniel Vetter { 43452217195SDaniel Vetter list_del(&mode->head); 43552217195SDaniel Vetter drm_mode_destroy(connector->dev, mode); 43652217195SDaniel Vetter } 43752217195SDaniel Vetter 43852217195SDaniel Vetter /** 43952217195SDaniel Vetter * drm_connector_cleanup - cleans up an initialised connector 44052217195SDaniel Vetter * @connector: connector to cleanup 44152217195SDaniel Vetter * 44252217195SDaniel Vetter * Cleans up the connector but doesn't free the object. 44352217195SDaniel Vetter */ 44452217195SDaniel Vetter void drm_connector_cleanup(struct drm_connector *connector) 44552217195SDaniel Vetter { 44652217195SDaniel Vetter struct drm_device *dev = connector->dev; 44752217195SDaniel Vetter struct drm_display_mode *mode, *t; 44852217195SDaniel Vetter 44952217195SDaniel Vetter /* The connector should have been removed from userspace long before 45052217195SDaniel Vetter * it is finally destroyed. 45152217195SDaniel Vetter */ 45239b50c60SLyude Paul if (WARN_ON(connector->registration_state == 45339b50c60SLyude Paul DRM_CONNECTOR_REGISTERED)) 45452217195SDaniel Vetter drm_connector_unregister(connector); 45552217195SDaniel Vetter 45652217195SDaniel Vetter if (connector->tile_group) { 45752217195SDaniel Vetter drm_mode_put_tile_group(dev, connector->tile_group); 45852217195SDaniel Vetter connector->tile_group = NULL; 45952217195SDaniel Vetter } 46052217195SDaniel Vetter 46152217195SDaniel Vetter list_for_each_entry_safe(mode, t, &connector->probed_modes, head) 46252217195SDaniel Vetter drm_mode_remove(connector, mode); 46352217195SDaniel Vetter 46452217195SDaniel Vetter list_for_each_entry_safe(mode, t, &connector->modes, head) 46552217195SDaniel Vetter drm_mode_remove(connector, mode); 46652217195SDaniel Vetter 4679a47dba1SChristophe JAILLET ida_simple_remove(&drm_connector_enum_list[connector->connector_type].ida, 46852217195SDaniel Vetter connector->connector_type_id); 46952217195SDaniel Vetter 4709a47dba1SChristophe JAILLET ida_simple_remove(&dev->mode_config.connector_ida, 47152217195SDaniel Vetter connector->index); 47252217195SDaniel Vetter 47352217195SDaniel Vetter kfree(connector->display_info.bus_formats); 47452217195SDaniel Vetter drm_mode_object_unregister(dev, &connector->base); 47552217195SDaniel Vetter kfree(connector->name); 47652217195SDaniel Vetter connector->name = NULL; 477613051daSDaniel Vetter spin_lock_irq(&dev->mode_config.connector_list_lock); 47852217195SDaniel Vetter list_del(&connector->head); 47952217195SDaniel Vetter dev->mode_config.num_connector--; 480613051daSDaniel Vetter spin_unlock_irq(&dev->mode_config.connector_list_lock); 48152217195SDaniel Vetter 48252217195SDaniel Vetter WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); 48352217195SDaniel Vetter if (connector->state && connector->funcs->atomic_destroy_state) 48452217195SDaniel Vetter connector->funcs->atomic_destroy_state(connector, 48552217195SDaniel Vetter connector->state); 48652217195SDaniel Vetter 487e73ab00eSDaniel Vetter mutex_destroy(&connector->mutex); 488e73ab00eSDaniel Vetter 48952217195SDaniel Vetter memset(connector, 0, sizeof(*connector)); 49052217195SDaniel Vetter } 49152217195SDaniel Vetter EXPORT_SYMBOL(drm_connector_cleanup); 49252217195SDaniel Vetter 49352217195SDaniel Vetter /** 49452217195SDaniel Vetter * drm_connector_register - register a connector 49552217195SDaniel Vetter * @connector: the connector to register 49652217195SDaniel Vetter * 49769b22f51SDaniel Vetter * Register userspace interfaces for a connector. Only call this for connectors 49869b22f51SDaniel Vetter * which can be hotplugged after drm_dev_register() has been called already, 49969b22f51SDaniel Vetter * e.g. DP MST connectors. All other connectors will be registered automatically 50069b22f51SDaniel Vetter * when calling drm_dev_register(). 50152217195SDaniel Vetter * 50252217195SDaniel Vetter * Returns: 50352217195SDaniel Vetter * Zero on success, error code on failure. 50452217195SDaniel Vetter */ 50552217195SDaniel Vetter int drm_connector_register(struct drm_connector *connector) 50652217195SDaniel Vetter { 507e73ab00eSDaniel Vetter int ret = 0; 50852217195SDaniel Vetter 509e6e7b48bSDaniel Vetter if (!connector->dev->registered) 510e6e7b48bSDaniel Vetter return 0; 511e6e7b48bSDaniel Vetter 512e73ab00eSDaniel Vetter mutex_lock(&connector->mutex); 51339b50c60SLyude Paul if (connector->registration_state != DRM_CONNECTOR_INITIALIZING) 514e73ab00eSDaniel Vetter goto unlock; 51552217195SDaniel Vetter 51652217195SDaniel Vetter ret = drm_sysfs_connector_add(connector); 51752217195SDaniel Vetter if (ret) 518e73ab00eSDaniel Vetter goto unlock; 51952217195SDaniel Vetter 520b792e640SGreg Kroah-Hartman drm_debugfs_connector_add(connector); 52152217195SDaniel Vetter 52252217195SDaniel Vetter if (connector->funcs->late_register) { 52352217195SDaniel Vetter ret = connector->funcs->late_register(connector); 52452217195SDaniel Vetter if (ret) 52552217195SDaniel Vetter goto err_debugfs; 52652217195SDaniel Vetter } 52752217195SDaniel Vetter 52852217195SDaniel Vetter drm_mode_object_register(connector->dev, &connector->base); 52952217195SDaniel Vetter 53039b50c60SLyude Paul connector->registration_state = DRM_CONNECTOR_REGISTERED; 531968d81a6SJeykumar Sankaran 532968d81a6SJeykumar Sankaran /* Let userspace know we have a new connector */ 533968d81a6SJeykumar Sankaran drm_sysfs_hotplug_event(connector->dev); 534968d81a6SJeykumar Sankaran 535e73ab00eSDaniel Vetter goto unlock; 53652217195SDaniel Vetter 53752217195SDaniel Vetter err_debugfs: 53852217195SDaniel Vetter drm_debugfs_connector_remove(connector); 53952217195SDaniel Vetter drm_sysfs_connector_remove(connector); 540e73ab00eSDaniel Vetter unlock: 541e73ab00eSDaniel Vetter mutex_unlock(&connector->mutex); 54252217195SDaniel Vetter return ret; 54352217195SDaniel Vetter } 54452217195SDaniel Vetter EXPORT_SYMBOL(drm_connector_register); 54552217195SDaniel Vetter 54652217195SDaniel Vetter /** 54752217195SDaniel Vetter * drm_connector_unregister - unregister a connector 54852217195SDaniel Vetter * @connector: the connector to unregister 54952217195SDaniel Vetter * 55069b22f51SDaniel Vetter * Unregister userspace interfaces for a connector. Only call this for 55169b22f51SDaniel Vetter * connectors which have registered explicitly by calling drm_dev_register(), 55269b22f51SDaniel Vetter * since connectors are unregistered automatically when drm_dev_unregister() is 55369b22f51SDaniel Vetter * called. 55452217195SDaniel Vetter */ 55552217195SDaniel Vetter void drm_connector_unregister(struct drm_connector *connector) 55652217195SDaniel Vetter { 557e73ab00eSDaniel Vetter mutex_lock(&connector->mutex); 55839b50c60SLyude Paul if (connector->registration_state != DRM_CONNECTOR_REGISTERED) { 559e73ab00eSDaniel Vetter mutex_unlock(&connector->mutex); 56052217195SDaniel Vetter return; 561e73ab00eSDaniel Vetter } 56252217195SDaniel Vetter 56352217195SDaniel Vetter if (connector->funcs->early_unregister) 56452217195SDaniel Vetter connector->funcs->early_unregister(connector); 56552217195SDaniel Vetter 56652217195SDaniel Vetter drm_sysfs_connector_remove(connector); 56752217195SDaniel Vetter drm_debugfs_connector_remove(connector); 56852217195SDaniel Vetter 56939b50c60SLyude Paul connector->registration_state = DRM_CONNECTOR_UNREGISTERED; 570e73ab00eSDaniel Vetter mutex_unlock(&connector->mutex); 57152217195SDaniel Vetter } 57252217195SDaniel Vetter EXPORT_SYMBOL(drm_connector_unregister); 57352217195SDaniel Vetter 57452217195SDaniel Vetter void drm_connector_unregister_all(struct drm_device *dev) 57552217195SDaniel Vetter { 57652217195SDaniel Vetter struct drm_connector *connector; 577613051daSDaniel Vetter struct drm_connector_list_iter conn_iter; 57852217195SDaniel Vetter 579b982dab1SThierry Reding drm_connector_list_iter_begin(dev, &conn_iter); 580613051daSDaniel Vetter drm_for_each_connector_iter(connector, &conn_iter) 58152217195SDaniel Vetter drm_connector_unregister(connector); 582b982dab1SThierry Reding drm_connector_list_iter_end(&conn_iter); 58352217195SDaniel Vetter } 58452217195SDaniel Vetter 58552217195SDaniel Vetter int drm_connector_register_all(struct drm_device *dev) 58652217195SDaniel Vetter { 58752217195SDaniel Vetter struct drm_connector *connector; 588613051daSDaniel Vetter struct drm_connector_list_iter conn_iter; 589613051daSDaniel Vetter int ret = 0; 59052217195SDaniel Vetter 591b982dab1SThierry Reding drm_connector_list_iter_begin(dev, &conn_iter); 592613051daSDaniel Vetter drm_for_each_connector_iter(connector, &conn_iter) { 59352217195SDaniel Vetter ret = drm_connector_register(connector); 59452217195SDaniel Vetter if (ret) 595613051daSDaniel Vetter break; 59652217195SDaniel Vetter } 597b982dab1SThierry Reding drm_connector_list_iter_end(&conn_iter); 59852217195SDaniel Vetter 599613051daSDaniel Vetter if (ret) 60052217195SDaniel Vetter drm_connector_unregister_all(dev); 60152217195SDaniel Vetter return ret; 60252217195SDaniel Vetter } 60352217195SDaniel Vetter 60452217195SDaniel Vetter /** 60552217195SDaniel Vetter * drm_get_connector_status_name - return a string for connector status 60652217195SDaniel Vetter * @status: connector status to compute name of 60752217195SDaniel Vetter * 60852217195SDaniel Vetter * In contrast to the other drm_get_*_name functions this one here returns a 60952217195SDaniel Vetter * const pointer and hence is threadsafe. 61052217195SDaniel Vetter */ 61152217195SDaniel Vetter const char *drm_get_connector_status_name(enum drm_connector_status status) 61252217195SDaniel Vetter { 61352217195SDaniel Vetter if (status == connector_status_connected) 61452217195SDaniel Vetter return "connected"; 61552217195SDaniel Vetter else if (status == connector_status_disconnected) 61652217195SDaniel Vetter return "disconnected"; 61752217195SDaniel Vetter else 61852217195SDaniel Vetter return "unknown"; 61952217195SDaniel Vetter } 62052217195SDaniel Vetter EXPORT_SYMBOL(drm_get_connector_status_name); 62152217195SDaniel Vetter 6226140cf20SJani Nikula /** 6236140cf20SJani Nikula * drm_get_connector_force_name - return a string for connector force 6246140cf20SJani Nikula * @force: connector force to get name of 6256140cf20SJani Nikula * 6266140cf20SJani Nikula * Returns: const pointer to name. 6276140cf20SJani Nikula */ 6286140cf20SJani Nikula const char *drm_get_connector_force_name(enum drm_connector_force force) 6296140cf20SJani Nikula { 6306140cf20SJani Nikula switch (force) { 6316140cf20SJani Nikula case DRM_FORCE_UNSPECIFIED: 6326140cf20SJani Nikula return "unspecified"; 6336140cf20SJani Nikula case DRM_FORCE_OFF: 6346140cf20SJani Nikula return "off"; 6356140cf20SJani Nikula case DRM_FORCE_ON: 6366140cf20SJani Nikula return "on"; 6376140cf20SJani Nikula case DRM_FORCE_ON_DIGITAL: 6386140cf20SJani Nikula return "digital"; 6396140cf20SJani Nikula default: 6406140cf20SJani Nikula return "unknown"; 6416140cf20SJani Nikula } 6426140cf20SJani Nikula } 6436140cf20SJani Nikula 644613051daSDaniel Vetter #ifdef CONFIG_LOCKDEP 645613051daSDaniel Vetter static struct lockdep_map connector_list_iter_dep_map = { 646613051daSDaniel Vetter .name = "drm_connector_list_iter" 647613051daSDaniel Vetter }; 648613051daSDaniel Vetter #endif 649613051daSDaniel Vetter 650613051daSDaniel Vetter /** 651b982dab1SThierry Reding * drm_connector_list_iter_begin - initialize a connector_list iterator 652613051daSDaniel Vetter * @dev: DRM device 653613051daSDaniel Vetter * @iter: connector_list iterator 654613051daSDaniel Vetter * 655d574528aSDaniel Vetter * Sets @iter up to walk the &drm_mode_config.connector_list of @dev. @iter 656b982dab1SThierry Reding * must always be cleaned up again by calling drm_connector_list_iter_end(). 657613051daSDaniel Vetter * Iteration itself happens using drm_connector_list_iter_next() or 658613051daSDaniel Vetter * drm_for_each_connector_iter(). 659613051daSDaniel Vetter */ 660b982dab1SThierry Reding void drm_connector_list_iter_begin(struct drm_device *dev, 661613051daSDaniel Vetter struct drm_connector_list_iter *iter) 662613051daSDaniel Vetter { 663613051daSDaniel Vetter iter->dev = dev; 664613051daSDaniel Vetter iter->conn = NULL; 665613051daSDaniel Vetter lock_acquire_shared_recursive(&connector_list_iter_dep_map, 0, 1, NULL, _RET_IP_); 666613051daSDaniel Vetter } 667b982dab1SThierry Reding EXPORT_SYMBOL(drm_connector_list_iter_begin); 668613051daSDaniel Vetter 669a703c550SDaniel Vetter /* 670a703c550SDaniel Vetter * Extra-safe connector put function that works in any context. Should only be 671a703c550SDaniel Vetter * used from the connector_iter functions, where we never really expect to 672a703c550SDaniel Vetter * actually release the connector when dropping our final reference. 673a703c550SDaniel Vetter */ 674a703c550SDaniel Vetter static void 675ea497bb9SDaniel Vetter __drm_connector_put_safe(struct drm_connector *conn) 676a703c550SDaniel Vetter { 677ea497bb9SDaniel Vetter struct drm_mode_config *config = &conn->dev->mode_config; 678ea497bb9SDaniel Vetter 679ea497bb9SDaniel Vetter lockdep_assert_held(&config->connector_list_lock); 680ea497bb9SDaniel Vetter 681ea497bb9SDaniel Vetter if (!refcount_dec_and_test(&conn->base.refcount.refcount)) 682ea497bb9SDaniel Vetter return; 683ea497bb9SDaniel Vetter 684ea497bb9SDaniel Vetter llist_add(&conn->free_node, &config->connector_free_list); 685ea497bb9SDaniel Vetter schedule_work(&config->connector_free_work); 686a703c550SDaniel Vetter } 687a703c550SDaniel Vetter 688613051daSDaniel Vetter /** 689613051daSDaniel Vetter * drm_connector_list_iter_next - return next connector 6904f45c778SLyude Paul * @iter: connector_list iterator 691613051daSDaniel Vetter * 692613051daSDaniel Vetter * Returns the next connector for @iter, or NULL when the list walk has 693613051daSDaniel Vetter * completed. 694613051daSDaniel Vetter */ 695613051daSDaniel Vetter struct drm_connector * 696613051daSDaniel Vetter drm_connector_list_iter_next(struct drm_connector_list_iter *iter) 697613051daSDaniel Vetter { 698613051daSDaniel Vetter struct drm_connector *old_conn = iter->conn; 699613051daSDaniel Vetter struct drm_mode_config *config = &iter->dev->mode_config; 700613051daSDaniel Vetter struct list_head *lhead; 701613051daSDaniel Vetter unsigned long flags; 702613051daSDaniel Vetter 703613051daSDaniel Vetter spin_lock_irqsave(&config->connector_list_lock, flags); 704613051daSDaniel Vetter lhead = old_conn ? &old_conn->head : &config->connector_list; 705613051daSDaniel Vetter 706613051daSDaniel Vetter do { 707613051daSDaniel Vetter if (lhead->next == &config->connector_list) { 708613051daSDaniel Vetter iter->conn = NULL; 709613051daSDaniel Vetter break; 710613051daSDaniel Vetter } 711613051daSDaniel Vetter 712613051daSDaniel Vetter lhead = lhead->next; 713613051daSDaniel Vetter iter->conn = list_entry(lhead, struct drm_connector, head); 714613051daSDaniel Vetter 715613051daSDaniel Vetter /* loop until it's not a zombie connector */ 716613051daSDaniel Vetter } while (!kref_get_unless_zero(&iter->conn->base.refcount)); 717613051daSDaniel Vetter 718613051daSDaniel Vetter if (old_conn) 719ea497bb9SDaniel Vetter __drm_connector_put_safe(old_conn); 720ea497bb9SDaniel Vetter spin_unlock_irqrestore(&config->connector_list_lock, flags); 721613051daSDaniel Vetter 722613051daSDaniel Vetter return iter->conn; 723613051daSDaniel Vetter } 724613051daSDaniel Vetter EXPORT_SYMBOL(drm_connector_list_iter_next); 725613051daSDaniel Vetter 726613051daSDaniel Vetter /** 727b982dab1SThierry Reding * drm_connector_list_iter_end - tear down a connector_list iterator 728613051daSDaniel Vetter * @iter: connector_list iterator 729613051daSDaniel Vetter * 730613051daSDaniel Vetter * Tears down @iter and releases any resources (like &drm_connector references) 731613051daSDaniel Vetter * acquired while walking the list. This must always be called, both when the 732613051daSDaniel Vetter * iteration completes fully or when it was aborted without walking the entire 733613051daSDaniel Vetter * list. 734613051daSDaniel Vetter */ 735b982dab1SThierry Reding void drm_connector_list_iter_end(struct drm_connector_list_iter *iter) 736613051daSDaniel Vetter { 737ea497bb9SDaniel Vetter struct drm_mode_config *config = &iter->dev->mode_config; 738ea497bb9SDaniel Vetter unsigned long flags; 739ea497bb9SDaniel Vetter 740613051daSDaniel Vetter iter->dev = NULL; 741ea497bb9SDaniel Vetter if (iter->conn) { 742ea497bb9SDaniel Vetter spin_lock_irqsave(&config->connector_list_lock, flags); 743ea497bb9SDaniel Vetter __drm_connector_put_safe(iter->conn); 744ea497bb9SDaniel Vetter spin_unlock_irqrestore(&config->connector_list_lock, flags); 745ea497bb9SDaniel Vetter } 7465facae4fSQian Cai lock_release(&connector_list_iter_dep_map, _RET_IP_); 747613051daSDaniel Vetter } 748b982dab1SThierry Reding EXPORT_SYMBOL(drm_connector_list_iter_end); 749613051daSDaniel Vetter 75052217195SDaniel Vetter static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { 75152217195SDaniel Vetter { SubPixelUnknown, "Unknown" }, 75252217195SDaniel Vetter { SubPixelHorizontalRGB, "Horizontal RGB" }, 75352217195SDaniel Vetter { SubPixelHorizontalBGR, "Horizontal BGR" }, 75452217195SDaniel Vetter { SubPixelVerticalRGB, "Vertical RGB" }, 75552217195SDaniel Vetter { SubPixelVerticalBGR, "Vertical BGR" }, 75652217195SDaniel Vetter { SubPixelNone, "None" }, 75752217195SDaniel Vetter }; 75852217195SDaniel Vetter 75952217195SDaniel Vetter /** 76052217195SDaniel Vetter * drm_get_subpixel_order_name - return a string for a given subpixel enum 76152217195SDaniel Vetter * @order: enum of subpixel_order 76252217195SDaniel Vetter * 76352217195SDaniel Vetter * Note you could abuse this and return something out of bounds, but that 76452217195SDaniel Vetter * would be a caller error. No unscrubbed user data should make it here. 76552217195SDaniel Vetter */ 76652217195SDaniel Vetter const char *drm_get_subpixel_order_name(enum subpixel_order order) 76752217195SDaniel Vetter { 76852217195SDaniel Vetter return drm_subpixel_enum_list[order].name; 76952217195SDaniel Vetter } 77052217195SDaniel Vetter EXPORT_SYMBOL(drm_get_subpixel_order_name); 77152217195SDaniel Vetter 77252217195SDaniel Vetter static const struct drm_prop_enum_list drm_dpms_enum_list[] = { 77352217195SDaniel Vetter { DRM_MODE_DPMS_ON, "On" }, 77452217195SDaniel Vetter { DRM_MODE_DPMS_STANDBY, "Standby" }, 77552217195SDaniel Vetter { DRM_MODE_DPMS_SUSPEND, "Suspend" }, 77652217195SDaniel Vetter { DRM_MODE_DPMS_OFF, "Off" } 77752217195SDaniel Vetter }; 77852217195SDaniel Vetter DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) 77952217195SDaniel Vetter 78040ee6fbeSManasi Navare static const struct drm_prop_enum_list drm_link_status_enum_list[] = { 78140ee6fbeSManasi Navare { DRM_MODE_LINK_STATUS_GOOD, "Good" }, 78240ee6fbeSManasi Navare { DRM_MODE_LINK_STATUS_BAD, "Bad" }, 78340ee6fbeSManasi Navare }; 78440ee6fbeSManasi Navare 785b3c6c8bfSDaniel Vetter /** 786b3c6c8bfSDaniel Vetter * drm_display_info_set_bus_formats - set the supported bus formats 787b3c6c8bfSDaniel Vetter * @info: display info to store bus formats in 788b3c6c8bfSDaniel Vetter * @formats: array containing the supported bus formats 789b3c6c8bfSDaniel Vetter * @num_formats: the number of entries in the fmts array 790b3c6c8bfSDaniel Vetter * 791b3c6c8bfSDaniel Vetter * Store the supported bus formats in display info structure. 792b3c6c8bfSDaniel Vetter * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for 793b3c6c8bfSDaniel Vetter * a full list of available formats. 794b3c6c8bfSDaniel Vetter */ 795b3c6c8bfSDaniel Vetter int drm_display_info_set_bus_formats(struct drm_display_info *info, 796b3c6c8bfSDaniel Vetter const u32 *formats, 797b3c6c8bfSDaniel Vetter unsigned int num_formats) 798b3c6c8bfSDaniel Vetter { 799b3c6c8bfSDaniel Vetter u32 *fmts = NULL; 800b3c6c8bfSDaniel Vetter 801b3c6c8bfSDaniel Vetter if (!formats && num_formats) 802b3c6c8bfSDaniel Vetter return -EINVAL; 803b3c6c8bfSDaniel Vetter 804b3c6c8bfSDaniel Vetter if (formats && num_formats) { 805b3c6c8bfSDaniel Vetter fmts = kmemdup(formats, sizeof(*formats) * num_formats, 806b3c6c8bfSDaniel Vetter GFP_KERNEL); 807b3c6c8bfSDaniel Vetter if (!fmts) 808b3c6c8bfSDaniel Vetter return -ENOMEM; 809b3c6c8bfSDaniel Vetter } 810b3c6c8bfSDaniel Vetter 811b3c6c8bfSDaniel Vetter kfree(info->bus_formats); 812b3c6c8bfSDaniel Vetter info->bus_formats = fmts; 813b3c6c8bfSDaniel Vetter info->num_bus_formats = num_formats; 814b3c6c8bfSDaniel Vetter 815b3c6c8bfSDaniel Vetter return 0; 816b3c6c8bfSDaniel Vetter } 817b3c6c8bfSDaniel Vetter EXPORT_SYMBOL(drm_display_info_set_bus_formats); 818b3c6c8bfSDaniel Vetter 81952217195SDaniel Vetter /* Optional connector properties. */ 82052217195SDaniel Vetter static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { 82152217195SDaniel Vetter { DRM_MODE_SCALE_NONE, "None" }, 82252217195SDaniel Vetter { DRM_MODE_SCALE_FULLSCREEN, "Full" }, 82352217195SDaniel Vetter { DRM_MODE_SCALE_CENTER, "Center" }, 82452217195SDaniel Vetter { DRM_MODE_SCALE_ASPECT, "Full aspect" }, 82552217195SDaniel Vetter }; 82652217195SDaniel Vetter 82752217195SDaniel Vetter static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { 82852217195SDaniel Vetter { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, 82952217195SDaniel Vetter { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, 83052217195SDaniel Vetter { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, 83152217195SDaniel Vetter }; 83252217195SDaniel Vetter 83350525c33SStanislav Lisovskiy static const struct drm_prop_enum_list drm_content_type_enum_list[] = { 83450525c33SStanislav Lisovskiy { DRM_MODE_CONTENT_TYPE_NO_DATA, "No Data" }, 83550525c33SStanislav Lisovskiy { DRM_MODE_CONTENT_TYPE_GRAPHICS, "Graphics" }, 83650525c33SStanislav Lisovskiy { DRM_MODE_CONTENT_TYPE_PHOTO, "Photo" }, 83750525c33SStanislav Lisovskiy { DRM_MODE_CONTENT_TYPE_CINEMA, "Cinema" }, 83850525c33SStanislav Lisovskiy { DRM_MODE_CONTENT_TYPE_GAME, "Game" }, 83950525c33SStanislav Lisovskiy }; 84050525c33SStanislav Lisovskiy 8418d70f395SHans de Goede static const struct drm_prop_enum_list drm_panel_orientation_enum_list[] = { 8428d70f395SHans de Goede { DRM_MODE_PANEL_ORIENTATION_NORMAL, "Normal" }, 8438d70f395SHans de Goede { DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP, "Upside Down" }, 8448d70f395SHans de Goede { DRM_MODE_PANEL_ORIENTATION_LEFT_UP, "Left Side Up" }, 8458d70f395SHans de Goede { DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, "Right Side Up" }, 8468d70f395SHans de Goede }; 8478d70f395SHans de Goede 84852217195SDaniel Vetter static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { 84952217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 85052217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 85152217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 85252217195SDaniel Vetter }; 85352217195SDaniel Vetter DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) 85452217195SDaniel Vetter 85552217195SDaniel Vetter static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { 856e5b92773SOleg Vasilev { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I, TV-out and DP */ 85752217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 85852217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 85952217195SDaniel Vetter }; 86052217195SDaniel Vetter DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, 86152217195SDaniel Vetter drm_dvi_i_subconnector_enum_list) 86252217195SDaniel Vetter 86352217195SDaniel Vetter static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { 86452217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 86552217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 86652217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 86752217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 86852217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 86952217195SDaniel Vetter }; 87052217195SDaniel Vetter DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) 87152217195SDaniel Vetter 87252217195SDaniel Vetter static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { 873e5b92773SOleg Vasilev { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I, TV-out and DP */ 87452217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 87552217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 87652217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 87752217195SDaniel Vetter { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 87852217195SDaniel Vetter }; 87952217195SDaniel Vetter DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, 88052217195SDaniel Vetter drm_tv_subconnector_enum_list) 88152217195SDaniel Vetter 882e5b92773SOleg Vasilev static const struct drm_prop_enum_list drm_dp_subconnector_enum_list[] = { 883e5b92773SOleg Vasilev { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I, TV-out and DP */ 884e5b92773SOleg Vasilev { DRM_MODE_SUBCONNECTOR_VGA, "VGA" }, /* DP */ 885e5b92773SOleg Vasilev { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DP */ 886e5b92773SOleg Vasilev { DRM_MODE_SUBCONNECTOR_HDMIA, "HDMI" }, /* DP */ 887e5b92773SOleg Vasilev { DRM_MODE_SUBCONNECTOR_DisplayPort, "DP" }, /* DP */ 888e5b92773SOleg Vasilev { DRM_MODE_SUBCONNECTOR_Wireless, "Wireless" }, /* DP */ 889e5b92773SOleg Vasilev { DRM_MODE_SUBCONNECTOR_Native, "Native" }, /* DP */ 890e5b92773SOleg Vasilev }; 891e5b92773SOleg Vasilev 892e5b92773SOleg Vasilev DRM_ENUM_NAME_FN(drm_get_dp_subconnector_name, 893e5b92773SOleg Vasilev drm_dp_subconnector_enum_list) 894e5b92773SOleg Vasilev 895d2c6a405SUma Shankar static const struct drm_prop_enum_list hdmi_colorspaces[] = { 896d2c6a405SUma Shankar /* For Default case, driver will set the colorspace */ 897d2c6a405SUma Shankar { DRM_MODE_COLORIMETRY_DEFAULT, "Default" }, 898d2c6a405SUma Shankar /* Standard Definition Colorimetry based on CEA 861 */ 899d2c6a405SUma Shankar { DRM_MODE_COLORIMETRY_SMPTE_170M_YCC, "SMPTE_170M_YCC" }, 900d2c6a405SUma Shankar { DRM_MODE_COLORIMETRY_BT709_YCC, "BT709_YCC" }, 901d2c6a405SUma Shankar /* Standard Definition Colorimetry based on IEC 61966-2-4 */ 902d2c6a405SUma Shankar { DRM_MODE_COLORIMETRY_XVYCC_601, "XVYCC_601" }, 903d2c6a405SUma Shankar /* High Definition Colorimetry based on IEC 61966-2-4 */ 904d2c6a405SUma Shankar { DRM_MODE_COLORIMETRY_XVYCC_709, "XVYCC_709" }, 905d2c6a405SUma Shankar /* Colorimetry based on IEC 61966-2-1/Amendment 1 */ 906d2c6a405SUma Shankar { DRM_MODE_COLORIMETRY_SYCC_601, "SYCC_601" }, 907d2c6a405SUma Shankar /* Colorimetry based on IEC 61966-2-5 [33] */ 908d2c6a405SUma Shankar { DRM_MODE_COLORIMETRY_OPYCC_601, "opYCC_601" }, 909d2c6a405SUma Shankar /* Colorimetry based on IEC 61966-2-5 */ 910d2c6a405SUma Shankar { DRM_MODE_COLORIMETRY_OPRGB, "opRGB" }, 911d2c6a405SUma Shankar /* Colorimetry based on ITU-R BT.2020 */ 912d2c6a405SUma Shankar { DRM_MODE_COLORIMETRY_BT2020_CYCC, "BT2020_CYCC" }, 913d2c6a405SUma Shankar /* Colorimetry based on ITU-R BT.2020 */ 914d2c6a405SUma Shankar { DRM_MODE_COLORIMETRY_BT2020_RGB, "BT2020_RGB" }, 915d2c6a405SUma Shankar /* Colorimetry based on ITU-R BT.2020 */ 916d2c6a405SUma Shankar { DRM_MODE_COLORIMETRY_BT2020_YCC, "BT2020_YCC" }, 917d2c6a405SUma Shankar /* Added as part of Additional Colorimetry Extension in 861.G */ 918d2c6a405SUma Shankar { DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65, "DCI-P3_RGB_D65" }, 919d2c6a405SUma Shankar { DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER, "DCI-P3_RGB_Theater" }, 920d2c6a405SUma Shankar }; 921d2c6a405SUma Shankar 92245cf0e91SGwan-gyeong Mun /* 92345cf0e91SGwan-gyeong Mun * As per DP 1.4a spec, 2.2.5.7.5 VSC SDP Payload for Pixel Encoding/Colorimetry 92445cf0e91SGwan-gyeong Mun * Format Table 2-120 92545cf0e91SGwan-gyeong Mun */ 92645cf0e91SGwan-gyeong Mun static const struct drm_prop_enum_list dp_colorspaces[] = { 92745cf0e91SGwan-gyeong Mun /* For Default case, driver will set the colorspace */ 92845cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_DEFAULT, "Default" }, 92945cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED, "RGB_Wide_Gamut_Fixed_Point" }, 93045cf0e91SGwan-gyeong Mun /* Colorimetry based on scRGB (IEC 61966-2-2) */ 93145cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT, "RGB_Wide_Gamut_Floating_Point" }, 93245cf0e91SGwan-gyeong Mun /* Colorimetry based on IEC 61966-2-5 */ 93345cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_OPRGB, "opRGB" }, 93445cf0e91SGwan-gyeong Mun /* Colorimetry based on SMPTE RP 431-2 */ 93545cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65, "DCI-P3_RGB_D65" }, 93645cf0e91SGwan-gyeong Mun /* Colorimetry based on ITU-R BT.2020 */ 93745cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_BT2020_RGB, "BT2020_RGB" }, 93845cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_BT601_YCC, "BT601_YCC" }, 93945cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_BT709_YCC, "BT709_YCC" }, 94045cf0e91SGwan-gyeong Mun /* Standard Definition Colorimetry based on IEC 61966-2-4 */ 94145cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_XVYCC_601, "XVYCC_601" }, 94245cf0e91SGwan-gyeong Mun /* High Definition Colorimetry based on IEC 61966-2-4 */ 94345cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_XVYCC_709, "XVYCC_709" }, 94445cf0e91SGwan-gyeong Mun /* Colorimetry based on IEC 61966-2-1/Amendment 1 */ 94545cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_SYCC_601, "SYCC_601" }, 94645cf0e91SGwan-gyeong Mun /* Colorimetry based on IEC 61966-2-5 [33] */ 94745cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_OPYCC_601, "opYCC_601" }, 94845cf0e91SGwan-gyeong Mun /* Colorimetry based on ITU-R BT.2020 */ 94945cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_BT2020_CYCC, "BT2020_CYCC" }, 95045cf0e91SGwan-gyeong Mun /* Colorimetry based on ITU-R BT.2020 */ 95145cf0e91SGwan-gyeong Mun { DRM_MODE_COLORIMETRY_BT2020_YCC, "BT2020_YCC" }, 95245cf0e91SGwan-gyeong Mun }; 95345cf0e91SGwan-gyeong Mun 9544ada6f22SDaniel Vetter /** 9554ada6f22SDaniel Vetter * DOC: standard connector properties 9564ada6f22SDaniel Vetter * 9574ada6f22SDaniel Vetter * DRM connectors have a few standardized properties: 9584ada6f22SDaniel Vetter * 9594ada6f22SDaniel Vetter * EDID: 9604ada6f22SDaniel Vetter * Blob property which contains the current EDID read from the sink. This 9614ada6f22SDaniel Vetter * is useful to parse sink identification information like vendor, model 9624ada6f22SDaniel Vetter * and serial. Drivers should update this property by calling 963c555f023SDaniel Vetter * drm_connector_update_edid_property(), usually after having parsed 9644ada6f22SDaniel Vetter * the EDID using drm_add_edid_modes(). Userspace cannot change this 9654ada6f22SDaniel Vetter * property. 96612767469SSimon Ser * 96712767469SSimon Ser * User-space should not parse the EDID to obtain information exposed via 96812767469SSimon Ser * other KMS properties (because the kernel might apply limits, quirks or 96912767469SSimon Ser * fixups to the EDID). For instance, user-space should not try to parse 97012767469SSimon Ser * mode lists from the EDID. 9714ada6f22SDaniel Vetter * DPMS: 9724ada6f22SDaniel Vetter * Legacy property for setting the power state of the connector. For atomic 9734ada6f22SDaniel Vetter * drivers this is only provided for backwards compatibility with existing 9744ada6f22SDaniel Vetter * drivers, it remaps to controlling the "ACTIVE" property on the CRTC the 9754ada6f22SDaniel Vetter * connector is linked to. Drivers should never set this property directly, 976d574528aSDaniel Vetter * it is handled by the DRM core by calling the &drm_connector_funcs.dpms 977144a7999SDaniel Vetter * callback. For atomic drivers the remapping to the "ACTIVE" property is 9781e3e4caeSSimon Ser * implemented in the DRM core. 979d0d1aee5SDaniel Vetter * 980d0d1aee5SDaniel Vetter * Note that this property cannot be set through the MODE_ATOMIC ioctl, 981d0d1aee5SDaniel Vetter * userspace must use "ACTIVE" on the CRTC instead. 982d0d1aee5SDaniel Vetter * 983d0d1aee5SDaniel Vetter * WARNING: 984d0d1aee5SDaniel Vetter * 985d0d1aee5SDaniel Vetter * For userspace also running on legacy drivers the "DPMS" semantics are a 986d0d1aee5SDaniel Vetter * lot more complicated. First, userspace cannot rely on the "DPMS" value 987d0d1aee5SDaniel Vetter * returned by the GETCONNECTOR actually reflecting reality, because many 988d0d1aee5SDaniel Vetter * drivers fail to update it. For atomic drivers this is taken care of in 989d0d1aee5SDaniel Vetter * drm_atomic_helper_update_legacy_modeset_state(). 990d0d1aee5SDaniel Vetter * 991d0d1aee5SDaniel Vetter * The second issue is that the DPMS state is only well-defined when the 992d0d1aee5SDaniel Vetter * connector is connected to a CRTC. In atomic the DRM core enforces that 993d0d1aee5SDaniel Vetter * "ACTIVE" is off in such a case, no such checks exists for "DPMS". 994d0d1aee5SDaniel Vetter * 995d0d1aee5SDaniel Vetter * Finally, when enabling an output using the legacy SETCONFIG ioctl then 996d0d1aee5SDaniel Vetter * "DPMS" is forced to ON. But see above, that might not be reflected in 997d0d1aee5SDaniel Vetter * the software value on legacy drivers. 998d0d1aee5SDaniel Vetter * 999d0d1aee5SDaniel Vetter * Summarizing: Only set "DPMS" when the connector is known to be enabled, 1000d0d1aee5SDaniel Vetter * assume that a successful SETCONFIG call also sets "DPMS" to on, and 1001d0d1aee5SDaniel Vetter * never read back the value of "DPMS" because it can be incorrect. 10024ada6f22SDaniel Vetter * PATH: 10034ada6f22SDaniel Vetter * Connector path property to identify how this sink is physically 10044ada6f22SDaniel Vetter * connected. Used by DP MST. This should be set by calling 100597e14fbeSDaniel Vetter * drm_connector_set_path_property(), in the case of DP MST with the 10064ada6f22SDaniel Vetter * path property the MST manager created. Userspace cannot change this 10074ada6f22SDaniel Vetter * property. 10084ada6f22SDaniel Vetter * TILE: 10094ada6f22SDaniel Vetter * Connector tile group property to indicate how a set of DRM connector 10104ada6f22SDaniel Vetter * compose together into one logical screen. This is used by both high-res 10114ada6f22SDaniel Vetter * external screens (often only using a single cable, but exposing multiple 10124ada6f22SDaniel Vetter * DP MST sinks), or high-res integrated panels (like dual-link DSI) which 10134ada6f22SDaniel Vetter * are not gen-locked. Note that for tiled panels which are genlocked, like 10144ada6f22SDaniel Vetter * dual-link LVDS or dual-link DSI, the driver should try to not expose the 101584e543bcSAntonio Borneo * tiling and virtualise both &drm_crtc and &drm_plane if needed. Drivers 101697e14fbeSDaniel Vetter * should update this value using drm_connector_set_tile_property(). 10174ada6f22SDaniel Vetter * Userspace cannot change this property. 101840ee6fbeSManasi Navare * link-status: 1019716719a3SSean Paul * Connector link-status property to indicate the status of link. The 1020716719a3SSean Paul * default value of link-status is "GOOD". If something fails during or 1021716719a3SSean Paul * after modeset, the kernel driver may set this to "BAD" and issue a 1022716719a3SSean Paul * hotplug uevent. Drivers should update this value using 102397e14fbeSDaniel Vetter * drm_connector_set_link_status_property(). 1024a66da873SSimon Ser * 1025a66da873SSimon Ser * When user-space receives the hotplug uevent and detects a "BAD" 1026a66da873SSimon Ser * link-status, the sink doesn't receive pixels anymore (e.g. the screen 1027a66da873SSimon Ser * becomes completely black). The list of available modes may have 1028a66da873SSimon Ser * changed. User-space is expected to pick a new mode if the current one 1029a66da873SSimon Ser * has disappeared and perform a new modeset with link-status set to 1030a66da873SSimon Ser * "GOOD" to re-enable the connector. 1031a66da873SSimon Ser * 1032a66da873SSimon Ser * If multiple connectors share the same CRTC and one of them gets a "BAD" 1033a66da873SSimon Ser * link-status, the other are unaffected (ie. the sinks still continue to 1034a66da873SSimon Ser * receive pixels). 1035a66da873SSimon Ser * 1036a66da873SSimon Ser * When user-space performs an atomic commit on a connector with a "BAD" 1037a66da873SSimon Ser * link-status without resetting the property to "GOOD", the sink may 1038a66da873SSimon Ser * still not receive pixels. When user-space performs an atomic commit 1039a66da873SSimon Ser * which resets the link-status property to "GOOD" without the 1040a66da873SSimon Ser * ALLOW_MODESET flag set, it might fail because a modeset is required. 1041a66da873SSimon Ser * 1042a66da873SSimon Ser * User-space can only change link-status to "GOOD", changing it to "BAD" 1043a66da873SSimon Ser * is a no-op. 1044a66da873SSimon Ser * 1045a66da873SSimon Ser * For backwards compatibility with non-atomic userspace the kernel 1046a66da873SSimon Ser * tries to automatically set the link-status back to "GOOD" in the 1047a66da873SSimon Ser * SETCRTC IOCTL. This might fail if the mode is no longer valid, similar 1048a66da873SSimon Ser * to how it might fail if a different screen has been connected in the 1049a66da873SSimon Ser * interim. 105066660d4cSDave Airlie * non_desktop: 105166660d4cSDave Airlie * Indicates the output should be ignored for purposes of displaying a 105266660d4cSDave Airlie * standard desktop environment or console. This is most likely because 105366660d4cSDave Airlie * the output device is not rectilinear. 105424557865SSean Paul * Content Protection: 105524557865SSean Paul * This property is used by userspace to request the kernel protect future 105624557865SSean Paul * content communicated over the link. When requested, kernel will apply 105724557865SSean Paul * the appropriate means of protection (most often HDCP), and use the 105824557865SSean Paul * property to tell userspace the protection is active. 105924557865SSean Paul * 106024557865SSean Paul * Drivers can set this up by calling 106124557865SSean Paul * drm_connector_attach_content_protection_property() on initialization. 106224557865SSean Paul * 106324557865SSean Paul * The value of this property can be one of the following: 106424557865SSean Paul * 1065bbeba09fSDaniel Vetter * DRM_MODE_CONTENT_PROTECTION_UNDESIRED = 0 106624557865SSean Paul * The link is not protected, content is transmitted in the clear. 1067bbeba09fSDaniel Vetter * DRM_MODE_CONTENT_PROTECTION_DESIRED = 1 106824557865SSean Paul * Userspace has requested content protection, but the link is not 106924557865SSean Paul * currently protected. When in this state, kernel should enable 107024557865SSean Paul * Content Protection as soon as possible. 1071bbeba09fSDaniel Vetter * DRM_MODE_CONTENT_PROTECTION_ENABLED = 2 107224557865SSean Paul * Userspace has requested content protection, and the link is 107324557865SSean Paul * protected. Only the driver can set the property to this value. 107424557865SSean Paul * If userspace attempts to set to ENABLED, kernel will return 107524557865SSean Paul * -EINVAL. 107624557865SSean Paul * 107724557865SSean Paul * A few guidelines: 107824557865SSean Paul * 107924557865SSean Paul * - DESIRED state should be preserved until userspace de-asserts it by 108024557865SSean Paul * setting the property to UNDESIRED. This means ENABLED should only 108124557865SSean Paul * transition to UNDESIRED when the user explicitly requests it. 108224557865SSean Paul * - If the state is DESIRED, kernel should attempt to re-authenticate the 108324557865SSean Paul * link whenever possible. This includes across disable/enable, dpms, 108424557865SSean Paul * hotplug, downstream device changes, link status failures, etc.. 1085bb5a45d4SRamalingam C * - Kernel sends uevent with the connector id and property id through 1086bb5a45d4SRamalingam C * @drm_hdcp_update_content_protection, upon below kernel triggered 1087bb5a45d4SRamalingam C * scenarios: 108812db36bcSSean Paul * 108912db36bcSSean Paul * - DESIRED -> ENABLED (authentication success) 109012db36bcSSean Paul * - ENABLED -> DESIRED (termination of authentication) 1091bb5a45d4SRamalingam C * - Please note no uevents for userspace triggered property state changes, 1092bb5a45d4SRamalingam C * which can't fail such as 109312db36bcSSean Paul * 109412db36bcSSean Paul * - DESIRED/ENABLED -> UNDESIRED 109512db36bcSSean Paul * - UNDESIRED -> DESIRED 1096bb5a45d4SRamalingam C * - Userspace is responsible for polling the property or listen to uevents 1097bb5a45d4SRamalingam C * to determine when the value transitions from ENABLED to DESIRED. 1098bb5a45d4SRamalingam C * This signifies the link is no longer protected and userspace should 1099bb5a45d4SRamalingam C * take appropriate action (whatever that might be). 11004ada6f22SDaniel Vetter * 11017672dbbaSRamalingam C * HDCP Content Type: 11027672dbbaSRamalingam C * This Enum property is used by the userspace to declare the content type 11037672dbbaSRamalingam C * of the display stream, to kernel. Here display stream stands for any 11047672dbbaSRamalingam C * display content that userspace intended to display through HDCP 11057672dbbaSRamalingam C * encryption. 11067672dbbaSRamalingam C * 11077672dbbaSRamalingam C * Content Type of a stream is decided by the owner of the stream, as 11087672dbbaSRamalingam C * "HDCP Type0" or "HDCP Type1". 11097672dbbaSRamalingam C * 11107672dbbaSRamalingam C * The value of the property can be one of the below: 11117672dbbaSRamalingam C * - "HDCP Type0": DRM_MODE_HDCP_CONTENT_TYPE0 = 0 11127672dbbaSRamalingam C * - "HDCP Type1": DRM_MODE_HDCP_CONTENT_TYPE1 = 1 11137672dbbaSRamalingam C * 11147672dbbaSRamalingam C * When kernel starts the HDCP authentication (see "Content Protection" 11157672dbbaSRamalingam C * for details), it uses the content type in "HDCP Content Type" 11167672dbbaSRamalingam C * for performing the HDCP authentication with the display sink. 11177672dbbaSRamalingam C * 11187672dbbaSRamalingam C * Please note in HDCP spec versions, a link can be authenticated with 11197672dbbaSRamalingam C * HDCP 2.2 for Content Type 0/Content Type 1. Where as a link can be 11207672dbbaSRamalingam C * authenticated with HDCP1.4 only for Content Type 0(though it is implicit 11217672dbbaSRamalingam C * in nature. As there is no reference for Content Type in HDCP1.4). 11227672dbbaSRamalingam C * 11237672dbbaSRamalingam C * HDCP2.2 authentication protocol itself takes the "Content Type" as a 11247672dbbaSRamalingam C * parameter, which is a input for the DP HDCP2.2 encryption algo. 11257672dbbaSRamalingam C * 11267672dbbaSRamalingam C * In case of Type 0 content protection request, kernel driver can choose 11277672dbbaSRamalingam C * either of HDCP spec versions 1.4 and 2.2. When HDCP2.2 is used for 11287672dbbaSRamalingam C * "HDCP Type 0", a HDCP 2.2 capable repeater in the downstream can send 11297672dbbaSRamalingam C * that content to a HDCP 1.4 authenticated HDCP sink (Type0 link). 11307672dbbaSRamalingam C * But if the content is classified as "HDCP Type 1", above mentioned 11317672dbbaSRamalingam C * HDCP 2.2 repeater wont send the content to the HDCP sink as it can't 11327672dbbaSRamalingam C * authenticate the HDCP1.4 capable sink for "HDCP Type 1". 11337672dbbaSRamalingam C * 11347672dbbaSRamalingam C * Please note userspace can be ignorant of the HDCP versions used by the 11357672dbbaSRamalingam C * kernel driver to achieve the "HDCP Content Type". 11367672dbbaSRamalingam C * 11377672dbbaSRamalingam C * At current scenario, classifying a content as Type 1 ensures that the 11387672dbbaSRamalingam C * content will be displayed only through the HDCP2.2 encrypted link. 11397672dbbaSRamalingam C * 11407672dbbaSRamalingam C * Note that the HDCP Content Type property is introduced at HDCP 2.2, and 11417672dbbaSRamalingam C * defaults to type 0. It is only exposed by drivers supporting HDCP 2.2 11427672dbbaSRamalingam C * (hence supporting Type 0 and Type 1). Based on how next versions of 11437672dbbaSRamalingam C * HDCP specs are defined content Type could be used for higher versions 11447672dbbaSRamalingam C * too. 11457672dbbaSRamalingam C * 11467672dbbaSRamalingam C * If content type is changed when "Content Protection" is not UNDESIRED, 11477672dbbaSRamalingam C * then kernel will disable the HDCP and re-enable with new type in the 11487672dbbaSRamalingam C * same atomic commit. And when "Content Protection" is ENABLED, it means 11497672dbbaSRamalingam C * that link is HDCP authenticated and encrypted, for the transmission of 11507672dbbaSRamalingam C * the Type of stream mentioned at "HDCP Content Type". 11517672dbbaSRamalingam C * 1152a09db883SUma Shankar * HDR_OUTPUT_METADATA: 1153a09db883SUma Shankar * Connector property to enable userspace to send HDR Metadata to 1154a09db883SUma Shankar * driver. This metadata is based on the composition and blending 1155a09db883SUma Shankar * policies decided by user, taking into account the hardware and 1156a09db883SUma Shankar * sink capabilities. The driver gets this metadata and creates a 1157a09db883SUma Shankar * Dynamic Range and Mastering Infoframe (DRM) in case of HDMI, 1158a09db883SUma Shankar * SDP packet (Non-audio INFOFRAME SDP v1.3) for DP. This is then 1159a09db883SUma Shankar * sent to sink. This notifies the sink of the upcoming frame's Color 1160a09db883SUma Shankar * Encoding and Luminance parameters. 1161a09db883SUma Shankar * 1162a09db883SUma Shankar * Userspace first need to detect the HDR capabilities of sink by 1163a09db883SUma Shankar * reading and parsing the EDID. Details of HDR metadata for HDMI 1164a09db883SUma Shankar * are added in CTA 861.G spec. For DP , its defined in VESA DP 1165a09db883SUma Shankar * Standard v1.4. It needs to then get the metadata information 1166a09db883SUma Shankar * of the video/game/app content which are encoded in HDR (basically 1167a09db883SUma Shankar * using HDR transfer functions). With this information it needs to 1168a09db883SUma Shankar * decide on a blending policy and compose the relevant 1169a09db883SUma Shankar * layers/overlays into a common format. Once this blending is done, 1170a09db883SUma Shankar * userspace will be aware of the metadata of the composed frame to 1171a09db883SUma Shankar * be send to sink. It then uses this property to communicate this 1172a09db883SUma Shankar * metadata to driver which then make a Infoframe packet and sends 1173a09db883SUma Shankar * to sink based on the type of encoder connected. 1174a09db883SUma Shankar * 1175a09db883SUma Shankar * Userspace will be responsible to do Tone mapping operation in case: 1176a09db883SUma Shankar * - Some layers are HDR and others are SDR 1177a09db883SUma Shankar * - HDR layers luminance is not same as sink 11789f9b2559SSean Paul * 1179a09db883SUma Shankar * It will even need to do colorspace conversion and get all layers 1180a09db883SUma Shankar * to one common colorspace for blending. It can use either GL, Media 118184e543bcSAntonio Borneo * or display engine to get this done based on the capabilities of the 1182a09db883SUma Shankar * associated hardware. 1183a09db883SUma Shankar * 1184a09db883SUma Shankar * Driver expects metadata to be put in &struct hdr_output_metadata 1185a09db883SUma Shankar * structure from userspace. This is received as blob and stored in 1186a09db883SUma Shankar * &drm_connector_state.hdr_output_metadata. It parses EDID and saves the 1187a09db883SUma Shankar * sink metadata in &struct hdr_sink_metadata, as 1188a09db883SUma Shankar * &drm_connector.hdr_sink_metadata. Driver uses 1189a09db883SUma Shankar * drm_hdmi_infoframe_set_hdr_metadata() helper to set the HDR metadata, 1190a09db883SUma Shankar * hdmi_drm_infoframe_pack() to pack the infoframe as per spec, in case of 1191a09db883SUma Shankar * HDMI encoder. 1192a09db883SUma Shankar * 119347e22ff1SRadhakrishna Sripada * max bpc: 119447e22ff1SRadhakrishna Sripada * This range property is used by userspace to limit the bit depth. When 119547e22ff1SRadhakrishna Sripada * used the driver would limit the bpc in accordance with the valid range 119647e22ff1SRadhakrishna Sripada * supported by the hardware and sink. Drivers to use the function 119747e22ff1SRadhakrishna Sripada * drm_connector_attach_max_bpc_property() to create and attach the 119847e22ff1SRadhakrishna Sripada * property to the connector during initialization. 119947e22ff1SRadhakrishna Sripada * 12004ada6f22SDaniel Vetter * Connectors also have one standardized atomic property: 12014ada6f22SDaniel Vetter * 12024ada6f22SDaniel Vetter * CRTC_ID: 12034ada6f22SDaniel Vetter * Mode object ID of the &drm_crtc this connector should be connected to. 12048d70f395SHans de Goede * 12058d70f395SHans de Goede * Connectors for LCD panels may also have one standardized property: 12068d70f395SHans de Goede * 12078d70f395SHans de Goede * panel orientation: 12088d70f395SHans de Goede * On some devices the LCD panel is mounted in the casing in such a way 12098d70f395SHans de Goede * that the up/top side of the panel does not match with the top side of 12108d70f395SHans de Goede * the device. Userspace can use this property to check for this. 12118d70f395SHans de Goede * Note that input coordinates from touchscreens (input devices with 12128d70f395SHans de Goede * INPUT_PROP_DIRECT) will still map 1:1 to the actual LCD panel 12138d70f395SHans de Goede * coordinates, so if userspace rotates the picture to adjust for 12148d70f395SHans de Goede * the orientation it must also apply the same transformation to the 1215bbeba09fSDaniel Vetter * touchscreen input coordinates. This property is initialized by calling 121669654c63SDerek Basehore * drm_connector_set_panel_orientation() or 121769654c63SDerek Basehore * drm_connector_set_panel_orientation_with_quirk() 1218bbeba09fSDaniel Vetter * 1219bbeba09fSDaniel Vetter * scaling mode: 1220bbeba09fSDaniel Vetter * This property defines how a non-native mode is upscaled to the native 1221bbeba09fSDaniel Vetter * mode of an LCD panel: 1222bbeba09fSDaniel Vetter * 1223bbeba09fSDaniel Vetter * None: 1224bbeba09fSDaniel Vetter * No upscaling happens, scaling is left to the panel. Not all 1225bbeba09fSDaniel Vetter * drivers expose this mode. 1226bbeba09fSDaniel Vetter * Full: 1227bbeba09fSDaniel Vetter * The output is upscaled to the full resolution of the panel, 1228bbeba09fSDaniel Vetter * ignoring the aspect ratio. 1229bbeba09fSDaniel Vetter * Center: 1230bbeba09fSDaniel Vetter * No upscaling happens, the output is centered within the native 1231bbeba09fSDaniel Vetter * resolution the panel. 1232bbeba09fSDaniel Vetter * Full aspect: 1233bbeba09fSDaniel Vetter * The output is upscaled to maximize either the width or height 1234bbeba09fSDaniel Vetter * while retaining the aspect ratio. 1235bbeba09fSDaniel Vetter * 1236bbeba09fSDaniel Vetter * This property should be set up by calling 1237bbeba09fSDaniel Vetter * drm_connector_attach_scaling_mode_property(). Note that drivers 1238bbeba09fSDaniel Vetter * can also expose this property to external outputs, in which case they 1239bbeba09fSDaniel Vetter * must support "None", which should be the default (since external screens 1240bbeba09fSDaniel Vetter * have a built-in scaler). 1241e5b92773SOleg Vasilev * 1242e5b92773SOleg Vasilev * subconnector: 1243e5b92773SOleg Vasilev * This property is used by DVI-I, TVout and DisplayPort to indicate different 1244e5b92773SOleg Vasilev * connector subtypes. Enum values more or less match with those from main 1245e5b92773SOleg Vasilev * connector types. 1246e5b92773SOleg Vasilev * For DVI-I and TVout there is also a matching property "select subconnector" 1247e5b92773SOleg Vasilev * allowing to switch between signal types. 1248e5b92773SOleg Vasilev * DP subconnector corresponds to a downstream port. 12494ada6f22SDaniel Vetter */ 12504ada6f22SDaniel Vetter 125152217195SDaniel Vetter int drm_connector_create_standard_properties(struct drm_device *dev) 125252217195SDaniel Vetter { 125352217195SDaniel Vetter struct drm_property *prop; 125452217195SDaniel Vetter 125552217195SDaniel Vetter prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | 125652217195SDaniel Vetter DRM_MODE_PROP_IMMUTABLE, 125752217195SDaniel Vetter "EDID", 0); 125852217195SDaniel Vetter if (!prop) 125952217195SDaniel Vetter return -ENOMEM; 126052217195SDaniel Vetter dev->mode_config.edid_property = prop; 126152217195SDaniel Vetter 126252217195SDaniel Vetter prop = drm_property_create_enum(dev, 0, 126352217195SDaniel Vetter "DPMS", drm_dpms_enum_list, 126452217195SDaniel Vetter ARRAY_SIZE(drm_dpms_enum_list)); 126552217195SDaniel Vetter if (!prop) 126652217195SDaniel Vetter return -ENOMEM; 126752217195SDaniel Vetter dev->mode_config.dpms_property = prop; 126852217195SDaniel Vetter 126952217195SDaniel Vetter prop = drm_property_create(dev, 127052217195SDaniel Vetter DRM_MODE_PROP_BLOB | 127152217195SDaniel Vetter DRM_MODE_PROP_IMMUTABLE, 127252217195SDaniel Vetter "PATH", 0); 127352217195SDaniel Vetter if (!prop) 127452217195SDaniel Vetter return -ENOMEM; 127552217195SDaniel Vetter dev->mode_config.path_property = prop; 127652217195SDaniel Vetter 127752217195SDaniel Vetter prop = drm_property_create(dev, 127852217195SDaniel Vetter DRM_MODE_PROP_BLOB | 127952217195SDaniel Vetter DRM_MODE_PROP_IMMUTABLE, 128052217195SDaniel Vetter "TILE", 0); 128152217195SDaniel Vetter if (!prop) 128252217195SDaniel Vetter return -ENOMEM; 128352217195SDaniel Vetter dev->mode_config.tile_property = prop; 128452217195SDaniel Vetter 128540ee6fbeSManasi Navare prop = drm_property_create_enum(dev, 0, "link-status", 128640ee6fbeSManasi Navare drm_link_status_enum_list, 128740ee6fbeSManasi Navare ARRAY_SIZE(drm_link_status_enum_list)); 128840ee6fbeSManasi Navare if (!prop) 128940ee6fbeSManasi Navare return -ENOMEM; 129040ee6fbeSManasi Navare dev->mode_config.link_status_property = prop; 129140ee6fbeSManasi Navare 129266660d4cSDave Airlie prop = drm_property_create_bool(dev, DRM_MODE_PROP_IMMUTABLE, "non-desktop"); 129366660d4cSDave Airlie if (!prop) 129466660d4cSDave Airlie return -ENOMEM; 129566660d4cSDave Airlie dev->mode_config.non_desktop_property = prop; 129666660d4cSDave Airlie 1297fbb5d035SUma Shankar prop = drm_property_create(dev, DRM_MODE_PROP_BLOB, 1298fbb5d035SUma Shankar "HDR_OUTPUT_METADATA", 0); 1299fbb5d035SUma Shankar if (!prop) 1300fbb5d035SUma Shankar return -ENOMEM; 1301fbb5d035SUma Shankar dev->mode_config.hdr_output_metadata_property = prop; 1302fbb5d035SUma Shankar 130352217195SDaniel Vetter return 0; 130452217195SDaniel Vetter } 130552217195SDaniel Vetter 130652217195SDaniel Vetter /** 130752217195SDaniel Vetter * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties 130852217195SDaniel Vetter * @dev: DRM device 130952217195SDaniel Vetter * 131052217195SDaniel Vetter * Called by a driver the first time a DVI-I connector is made. 131152217195SDaniel Vetter */ 131252217195SDaniel Vetter int drm_mode_create_dvi_i_properties(struct drm_device *dev) 131352217195SDaniel Vetter { 131452217195SDaniel Vetter struct drm_property *dvi_i_selector; 131552217195SDaniel Vetter struct drm_property *dvi_i_subconnector; 131652217195SDaniel Vetter 131752217195SDaniel Vetter if (dev->mode_config.dvi_i_select_subconnector_property) 131852217195SDaniel Vetter return 0; 131952217195SDaniel Vetter 132052217195SDaniel Vetter dvi_i_selector = 132152217195SDaniel Vetter drm_property_create_enum(dev, 0, 132252217195SDaniel Vetter "select subconnector", 132352217195SDaniel Vetter drm_dvi_i_select_enum_list, 132452217195SDaniel Vetter ARRAY_SIZE(drm_dvi_i_select_enum_list)); 132552217195SDaniel Vetter dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; 132652217195SDaniel Vetter 132752217195SDaniel Vetter dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 132852217195SDaniel Vetter "subconnector", 132952217195SDaniel Vetter drm_dvi_i_subconnector_enum_list, 133052217195SDaniel Vetter ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); 133152217195SDaniel Vetter dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; 133252217195SDaniel Vetter 133352217195SDaniel Vetter return 0; 133452217195SDaniel Vetter } 133552217195SDaniel Vetter EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); 133652217195SDaniel Vetter 133752217195SDaniel Vetter /** 1338e5b92773SOleg Vasilev * drm_connector_attach_dp_subconnector_property - create subconnector property for DP 1339e5b92773SOleg Vasilev * @connector: drm_connector to attach property 1340e5b92773SOleg Vasilev * 1341e5b92773SOleg Vasilev * Called by a driver when DP connector is created. 1342e5b92773SOleg Vasilev */ 1343e5b92773SOleg Vasilev void drm_connector_attach_dp_subconnector_property(struct drm_connector *connector) 1344e5b92773SOleg Vasilev { 1345e5b92773SOleg Vasilev struct drm_mode_config *mode_config = &connector->dev->mode_config; 1346e5b92773SOleg Vasilev 1347e5b92773SOleg Vasilev if (!mode_config->dp_subconnector_property) 1348e5b92773SOleg Vasilev mode_config->dp_subconnector_property = 1349e5b92773SOleg Vasilev drm_property_create_enum(connector->dev, 1350e5b92773SOleg Vasilev DRM_MODE_PROP_IMMUTABLE, 1351e5b92773SOleg Vasilev "subconnector", 1352e5b92773SOleg Vasilev drm_dp_subconnector_enum_list, 1353e5b92773SOleg Vasilev ARRAY_SIZE(drm_dp_subconnector_enum_list)); 1354e5b92773SOleg Vasilev 1355e5b92773SOleg Vasilev drm_object_attach_property(&connector->base, 1356e5b92773SOleg Vasilev mode_config->dp_subconnector_property, 1357e5b92773SOleg Vasilev DRM_MODE_SUBCONNECTOR_Unknown); 1358e5b92773SOleg Vasilev } 1359e5b92773SOleg Vasilev EXPORT_SYMBOL(drm_connector_attach_dp_subconnector_property); 1360e5b92773SOleg Vasilev 1361e5b92773SOleg Vasilev /** 136250525c33SStanislav Lisovskiy * DOC: HDMI connector properties 136350525c33SStanislav Lisovskiy * 136450525c33SStanislav Lisovskiy * content type (HDMI specific): 136550525c33SStanislav Lisovskiy * Indicates content type setting to be used in HDMI infoframes to indicate 13661e55a53aSMatt Roper * content type for the external device, so that it adjusts its display 136750525c33SStanislav Lisovskiy * settings accordingly. 136850525c33SStanislav Lisovskiy * 136950525c33SStanislav Lisovskiy * The value of this property can be one of the following: 137050525c33SStanislav Lisovskiy * 137150525c33SStanislav Lisovskiy * No Data: 137250525c33SStanislav Lisovskiy * Content type is unknown 137350525c33SStanislav Lisovskiy * Graphics: 137450525c33SStanislav Lisovskiy * Content type is graphics 137550525c33SStanislav Lisovskiy * Photo: 137650525c33SStanislav Lisovskiy * Content type is photo 137750525c33SStanislav Lisovskiy * Cinema: 137850525c33SStanislav Lisovskiy * Content type is cinema 137950525c33SStanislav Lisovskiy * Game: 138050525c33SStanislav Lisovskiy * Content type is game 138150525c33SStanislav Lisovskiy * 138250525c33SStanislav Lisovskiy * Drivers can set up this property by calling 138350525c33SStanislav Lisovskiy * drm_connector_attach_content_type_property(). Decoding to 1384ba609631SDaniel Vetter * infoframe values is done through drm_hdmi_avi_infoframe_content_type(). 138550525c33SStanislav Lisovskiy */ 138650525c33SStanislav Lisovskiy 138750525c33SStanislav Lisovskiy /** 138850525c33SStanislav Lisovskiy * drm_connector_attach_content_type_property - attach content-type property 138950525c33SStanislav Lisovskiy * @connector: connector to attach content type property on. 139050525c33SStanislav Lisovskiy * 139150525c33SStanislav Lisovskiy * Called by a driver the first time a HDMI connector is made. 139250525c33SStanislav Lisovskiy */ 139350525c33SStanislav Lisovskiy int drm_connector_attach_content_type_property(struct drm_connector *connector) 139450525c33SStanislav Lisovskiy { 139550525c33SStanislav Lisovskiy if (!drm_mode_create_content_type_property(connector->dev)) 139650525c33SStanislav Lisovskiy drm_object_attach_property(&connector->base, 139750525c33SStanislav Lisovskiy connector->dev->mode_config.content_type_property, 139850525c33SStanislav Lisovskiy DRM_MODE_CONTENT_TYPE_NO_DATA); 139950525c33SStanislav Lisovskiy return 0; 140050525c33SStanislav Lisovskiy } 140150525c33SStanislav Lisovskiy EXPORT_SYMBOL(drm_connector_attach_content_type_property); 140250525c33SStanislav Lisovskiy 140350525c33SStanislav Lisovskiy 140450525c33SStanislav Lisovskiy /** 140550525c33SStanislav Lisovskiy * drm_hdmi_avi_infoframe_content_type() - fill the HDMI AVI infoframe 140650525c33SStanislav Lisovskiy * content type information, based 140750525c33SStanislav Lisovskiy * on correspondent DRM property. 140850525c33SStanislav Lisovskiy * @frame: HDMI AVI infoframe 140950525c33SStanislav Lisovskiy * @conn_state: DRM display connector state 141050525c33SStanislav Lisovskiy * 141150525c33SStanislav Lisovskiy */ 141250525c33SStanislav Lisovskiy void drm_hdmi_avi_infoframe_content_type(struct hdmi_avi_infoframe *frame, 141350525c33SStanislav Lisovskiy const struct drm_connector_state *conn_state) 141450525c33SStanislav Lisovskiy { 141550525c33SStanislav Lisovskiy switch (conn_state->content_type) { 141650525c33SStanislav Lisovskiy case DRM_MODE_CONTENT_TYPE_GRAPHICS: 141750525c33SStanislav Lisovskiy frame->content_type = HDMI_CONTENT_TYPE_GRAPHICS; 141850525c33SStanislav Lisovskiy break; 141950525c33SStanislav Lisovskiy case DRM_MODE_CONTENT_TYPE_CINEMA: 142050525c33SStanislav Lisovskiy frame->content_type = HDMI_CONTENT_TYPE_CINEMA; 142150525c33SStanislav Lisovskiy break; 142250525c33SStanislav Lisovskiy case DRM_MODE_CONTENT_TYPE_GAME: 142350525c33SStanislav Lisovskiy frame->content_type = HDMI_CONTENT_TYPE_GAME; 142450525c33SStanislav Lisovskiy break; 142550525c33SStanislav Lisovskiy case DRM_MODE_CONTENT_TYPE_PHOTO: 142650525c33SStanislav Lisovskiy frame->content_type = HDMI_CONTENT_TYPE_PHOTO; 142750525c33SStanislav Lisovskiy break; 142850525c33SStanislav Lisovskiy default: 142950525c33SStanislav Lisovskiy /* Graphics is the default(0) */ 143050525c33SStanislav Lisovskiy frame->content_type = HDMI_CONTENT_TYPE_GRAPHICS; 143150525c33SStanislav Lisovskiy } 143250525c33SStanislav Lisovskiy 143350525c33SStanislav Lisovskiy frame->itc = conn_state->content_type != DRM_MODE_CONTENT_TYPE_NO_DATA; 143450525c33SStanislav Lisovskiy } 143550525c33SStanislav Lisovskiy EXPORT_SYMBOL(drm_hdmi_avi_infoframe_content_type); 143650525c33SStanislav Lisovskiy 143750525c33SStanislav Lisovskiy /** 1438e9d2871fSMauro Carvalho Chehab * drm_connector_attach_tv_margin_properties - attach TV connector margin 1439e9d2871fSMauro Carvalho Chehab * properties 14406c4f52dcSBoris Brezillon * @connector: DRM connector 14416c4f52dcSBoris Brezillon * 14426c4f52dcSBoris Brezillon * Called by a driver when it needs to attach TV margin props to a connector. 14436c4f52dcSBoris Brezillon * Typically used on SDTV and HDMI connectors. 14446c4f52dcSBoris Brezillon */ 14456c4f52dcSBoris Brezillon void drm_connector_attach_tv_margin_properties(struct drm_connector *connector) 14466c4f52dcSBoris Brezillon { 14476c4f52dcSBoris Brezillon struct drm_device *dev = connector->dev; 14486c4f52dcSBoris Brezillon 14496c4f52dcSBoris Brezillon drm_object_attach_property(&connector->base, 14506c4f52dcSBoris Brezillon dev->mode_config.tv_left_margin_property, 14516c4f52dcSBoris Brezillon 0); 14526c4f52dcSBoris Brezillon drm_object_attach_property(&connector->base, 14536c4f52dcSBoris Brezillon dev->mode_config.tv_right_margin_property, 14546c4f52dcSBoris Brezillon 0); 14556c4f52dcSBoris Brezillon drm_object_attach_property(&connector->base, 14566c4f52dcSBoris Brezillon dev->mode_config.tv_top_margin_property, 14576c4f52dcSBoris Brezillon 0); 14586c4f52dcSBoris Brezillon drm_object_attach_property(&connector->base, 14596c4f52dcSBoris Brezillon dev->mode_config.tv_bottom_margin_property, 14606c4f52dcSBoris Brezillon 0); 14616c4f52dcSBoris Brezillon } 14626c4f52dcSBoris Brezillon EXPORT_SYMBOL(drm_connector_attach_tv_margin_properties); 14636c4f52dcSBoris Brezillon 14646c4f52dcSBoris Brezillon /** 14656c4f52dcSBoris Brezillon * drm_mode_create_tv_margin_properties - create TV connector margin properties 14666c4f52dcSBoris Brezillon * @dev: DRM device 14676c4f52dcSBoris Brezillon * 14686c4f52dcSBoris Brezillon * Called by a driver's HDMI connector initialization routine, this function 14696c4f52dcSBoris Brezillon * creates the TV margin properties for a given device. No need to call this 14706c4f52dcSBoris Brezillon * function for an SDTV connector, it's already called from 14716c4f52dcSBoris Brezillon * drm_mode_create_tv_properties(). 14726c4f52dcSBoris Brezillon */ 14736c4f52dcSBoris Brezillon int drm_mode_create_tv_margin_properties(struct drm_device *dev) 14746c4f52dcSBoris Brezillon { 14756c4f52dcSBoris Brezillon if (dev->mode_config.tv_left_margin_property) 14766c4f52dcSBoris Brezillon return 0; 14776c4f52dcSBoris Brezillon 14786c4f52dcSBoris Brezillon dev->mode_config.tv_left_margin_property = 14796c4f52dcSBoris Brezillon drm_property_create_range(dev, 0, "left margin", 0, 100); 14806c4f52dcSBoris Brezillon if (!dev->mode_config.tv_left_margin_property) 14816c4f52dcSBoris Brezillon return -ENOMEM; 14826c4f52dcSBoris Brezillon 14836c4f52dcSBoris Brezillon dev->mode_config.tv_right_margin_property = 14846c4f52dcSBoris Brezillon drm_property_create_range(dev, 0, "right margin", 0, 100); 14856c4f52dcSBoris Brezillon if (!dev->mode_config.tv_right_margin_property) 14866c4f52dcSBoris Brezillon return -ENOMEM; 14876c4f52dcSBoris Brezillon 14886c4f52dcSBoris Brezillon dev->mode_config.tv_top_margin_property = 14896c4f52dcSBoris Brezillon drm_property_create_range(dev, 0, "top margin", 0, 100); 14906c4f52dcSBoris Brezillon if (!dev->mode_config.tv_top_margin_property) 14916c4f52dcSBoris Brezillon return -ENOMEM; 14926c4f52dcSBoris Brezillon 14936c4f52dcSBoris Brezillon dev->mode_config.tv_bottom_margin_property = 14946c4f52dcSBoris Brezillon drm_property_create_range(dev, 0, "bottom margin", 0, 100); 14956c4f52dcSBoris Brezillon if (!dev->mode_config.tv_bottom_margin_property) 14966c4f52dcSBoris Brezillon return -ENOMEM; 14976c4f52dcSBoris Brezillon 14986c4f52dcSBoris Brezillon return 0; 14996c4f52dcSBoris Brezillon } 15006c4f52dcSBoris Brezillon EXPORT_SYMBOL(drm_mode_create_tv_margin_properties); 15016c4f52dcSBoris Brezillon 15026c4f52dcSBoris Brezillon /** 1503eda6887fSBoris Brezillon * drm_mode_create_tv_properties - create TV specific connector properties 150452217195SDaniel Vetter * @dev: DRM device 150552217195SDaniel Vetter * @num_modes: number of different TV formats (modes) supported 150652217195SDaniel Vetter * @modes: array of pointers to strings containing name of each format 150752217195SDaniel Vetter * 150852217195SDaniel Vetter * Called by a driver's TV initialization routine, this function creates 150952217195SDaniel Vetter * the TV specific connector properties for a given device. Caller is 151052217195SDaniel Vetter * responsible for allocating a list of format names and passing them to 151152217195SDaniel Vetter * this routine. 151252217195SDaniel Vetter */ 151352217195SDaniel Vetter int drm_mode_create_tv_properties(struct drm_device *dev, 151452217195SDaniel Vetter unsigned int num_modes, 151552217195SDaniel Vetter const char * const modes[]) 151652217195SDaniel Vetter { 151752217195SDaniel Vetter struct drm_property *tv_selector; 151852217195SDaniel Vetter struct drm_property *tv_subconnector; 151952217195SDaniel Vetter unsigned int i; 152052217195SDaniel Vetter 152152217195SDaniel Vetter if (dev->mode_config.tv_select_subconnector_property) 152252217195SDaniel Vetter return 0; 152352217195SDaniel Vetter 152452217195SDaniel Vetter /* 152552217195SDaniel Vetter * Basic connector properties 152652217195SDaniel Vetter */ 152752217195SDaniel Vetter tv_selector = drm_property_create_enum(dev, 0, 152852217195SDaniel Vetter "select subconnector", 152952217195SDaniel Vetter drm_tv_select_enum_list, 153052217195SDaniel Vetter ARRAY_SIZE(drm_tv_select_enum_list)); 153152217195SDaniel Vetter if (!tv_selector) 153252217195SDaniel Vetter goto nomem; 153352217195SDaniel Vetter 153452217195SDaniel Vetter dev->mode_config.tv_select_subconnector_property = tv_selector; 153552217195SDaniel Vetter 153652217195SDaniel Vetter tv_subconnector = 153752217195SDaniel Vetter drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 153852217195SDaniel Vetter "subconnector", 153952217195SDaniel Vetter drm_tv_subconnector_enum_list, 154052217195SDaniel Vetter ARRAY_SIZE(drm_tv_subconnector_enum_list)); 154152217195SDaniel Vetter if (!tv_subconnector) 154252217195SDaniel Vetter goto nomem; 154352217195SDaniel Vetter dev->mode_config.tv_subconnector_property = tv_subconnector; 154452217195SDaniel Vetter 154552217195SDaniel Vetter /* 154652217195SDaniel Vetter * Other, TV specific properties: margins & TV modes. 154752217195SDaniel Vetter */ 15486c4f52dcSBoris Brezillon if (drm_mode_create_tv_margin_properties(dev)) 154952217195SDaniel Vetter goto nomem; 155052217195SDaniel Vetter 155152217195SDaniel Vetter dev->mode_config.tv_mode_property = 155252217195SDaniel Vetter drm_property_create(dev, DRM_MODE_PROP_ENUM, 155352217195SDaniel Vetter "mode", num_modes); 155452217195SDaniel Vetter if (!dev->mode_config.tv_mode_property) 155552217195SDaniel Vetter goto nomem; 155652217195SDaniel Vetter 155752217195SDaniel Vetter for (i = 0; i < num_modes; i++) 155830e9db6dSVille Syrjälä drm_property_add_enum(dev->mode_config.tv_mode_property, 155952217195SDaniel Vetter i, modes[i]); 156052217195SDaniel Vetter 156152217195SDaniel Vetter dev->mode_config.tv_brightness_property = 156252217195SDaniel Vetter drm_property_create_range(dev, 0, "brightness", 0, 100); 156352217195SDaniel Vetter if (!dev->mode_config.tv_brightness_property) 156452217195SDaniel Vetter goto nomem; 156552217195SDaniel Vetter 156652217195SDaniel Vetter dev->mode_config.tv_contrast_property = 156752217195SDaniel Vetter drm_property_create_range(dev, 0, "contrast", 0, 100); 156852217195SDaniel Vetter if (!dev->mode_config.tv_contrast_property) 156952217195SDaniel Vetter goto nomem; 157052217195SDaniel Vetter 157152217195SDaniel Vetter dev->mode_config.tv_flicker_reduction_property = 157252217195SDaniel Vetter drm_property_create_range(dev, 0, "flicker reduction", 0, 100); 157352217195SDaniel Vetter if (!dev->mode_config.tv_flicker_reduction_property) 157452217195SDaniel Vetter goto nomem; 157552217195SDaniel Vetter 157652217195SDaniel Vetter dev->mode_config.tv_overscan_property = 157752217195SDaniel Vetter drm_property_create_range(dev, 0, "overscan", 0, 100); 157852217195SDaniel Vetter if (!dev->mode_config.tv_overscan_property) 157952217195SDaniel Vetter goto nomem; 158052217195SDaniel Vetter 158152217195SDaniel Vetter dev->mode_config.tv_saturation_property = 158252217195SDaniel Vetter drm_property_create_range(dev, 0, "saturation", 0, 100); 158352217195SDaniel Vetter if (!dev->mode_config.tv_saturation_property) 158452217195SDaniel Vetter goto nomem; 158552217195SDaniel Vetter 158652217195SDaniel Vetter dev->mode_config.tv_hue_property = 158752217195SDaniel Vetter drm_property_create_range(dev, 0, "hue", 0, 100); 158852217195SDaniel Vetter if (!dev->mode_config.tv_hue_property) 158952217195SDaniel Vetter goto nomem; 159052217195SDaniel Vetter 159152217195SDaniel Vetter return 0; 159252217195SDaniel Vetter nomem: 159352217195SDaniel Vetter return -ENOMEM; 159452217195SDaniel Vetter } 159552217195SDaniel Vetter EXPORT_SYMBOL(drm_mode_create_tv_properties); 159652217195SDaniel Vetter 159752217195SDaniel Vetter /** 159852217195SDaniel Vetter * drm_mode_create_scaling_mode_property - create scaling mode property 159952217195SDaniel Vetter * @dev: DRM device 160052217195SDaniel Vetter * 160152217195SDaniel Vetter * Called by a driver the first time it's needed, must be attached to desired 160252217195SDaniel Vetter * connectors. 16038f6e1e22SMaarten Lankhorst * 16048f6e1e22SMaarten Lankhorst * Atomic drivers should use drm_connector_attach_scaling_mode_property() 16058f6e1e22SMaarten Lankhorst * instead to correctly assign &drm_connector_state.picture_aspect_ratio 16068f6e1e22SMaarten Lankhorst * in the atomic state. 160752217195SDaniel Vetter */ 160852217195SDaniel Vetter int drm_mode_create_scaling_mode_property(struct drm_device *dev) 160952217195SDaniel Vetter { 161052217195SDaniel Vetter struct drm_property *scaling_mode; 161152217195SDaniel Vetter 161252217195SDaniel Vetter if (dev->mode_config.scaling_mode_property) 161352217195SDaniel Vetter return 0; 161452217195SDaniel Vetter 161552217195SDaniel Vetter scaling_mode = 161652217195SDaniel Vetter drm_property_create_enum(dev, 0, "scaling mode", 161752217195SDaniel Vetter drm_scaling_mode_enum_list, 161852217195SDaniel Vetter ARRAY_SIZE(drm_scaling_mode_enum_list)); 161952217195SDaniel Vetter 162052217195SDaniel Vetter dev->mode_config.scaling_mode_property = scaling_mode; 162152217195SDaniel Vetter 162252217195SDaniel Vetter return 0; 162352217195SDaniel Vetter } 162452217195SDaniel Vetter EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); 162552217195SDaniel Vetter 162652217195SDaniel Vetter /** 1627ab7a664fSNicholas Kazlauskas * DOC: Variable refresh properties 1628ab7a664fSNicholas Kazlauskas * 1629ab7a664fSNicholas Kazlauskas * Variable refresh rate capable displays can dynamically adjust their 1630ab7a664fSNicholas Kazlauskas * refresh rate by extending the duration of their vertical front porch 1631ab7a664fSNicholas Kazlauskas * until page flip or timeout occurs. This can reduce or remove stuttering 1632ab7a664fSNicholas Kazlauskas * and latency in scenarios where the page flip does not align with the 1633ab7a664fSNicholas Kazlauskas * vblank interval. 1634ab7a664fSNicholas Kazlauskas * 1635ab7a664fSNicholas Kazlauskas * An example scenario would be an application flipping at a constant rate 1636ab7a664fSNicholas Kazlauskas * of 48Hz on a 60Hz display. The page flip will frequently miss the vblank 1637ab7a664fSNicholas Kazlauskas * interval and the same contents will be displayed twice. This can be 1638ab7a664fSNicholas Kazlauskas * observed as stuttering for content with motion. 1639ab7a664fSNicholas Kazlauskas * 1640ab7a664fSNicholas Kazlauskas * If variable refresh rate was active on a display that supported a 1641ab7a664fSNicholas Kazlauskas * variable refresh range from 35Hz to 60Hz no stuttering would be observable 1642ab7a664fSNicholas Kazlauskas * for the example scenario. The minimum supported variable refresh rate of 1643ab7a664fSNicholas Kazlauskas * 35Hz is below the page flip frequency and the vertical front porch can 1644ab7a664fSNicholas Kazlauskas * be extended until the page flip occurs. The vblank interval will be 1645ab7a664fSNicholas Kazlauskas * directly aligned to the page flip rate. 1646ab7a664fSNicholas Kazlauskas * 1647ab7a664fSNicholas Kazlauskas * Not all userspace content is suitable for use with variable refresh rate. 1648ab7a664fSNicholas Kazlauskas * Large and frequent changes in vertical front porch duration may worsen 1649ab7a664fSNicholas Kazlauskas * perceived stuttering for input sensitive applications. 1650ab7a664fSNicholas Kazlauskas * 1651ab7a664fSNicholas Kazlauskas * Panel brightness will also vary with vertical front porch duration. Some 1652ab7a664fSNicholas Kazlauskas * panels may have noticeable differences in brightness between the minimum 1653ab7a664fSNicholas Kazlauskas * vertical front porch duration and the maximum vertical front porch duration. 1654ab7a664fSNicholas Kazlauskas * Large and frequent changes in vertical front porch duration may produce 1655ab7a664fSNicholas Kazlauskas * observable flickering for such panels. 1656ab7a664fSNicholas Kazlauskas * 1657ab7a664fSNicholas Kazlauskas * Userspace control for variable refresh rate is supported via properties 1658ab7a664fSNicholas Kazlauskas * on the &drm_connector and &drm_crtc objects. 1659ab7a664fSNicholas Kazlauskas * 1660ab7a664fSNicholas Kazlauskas * "vrr_capable": 1661ab7a664fSNicholas Kazlauskas * Optional &drm_connector boolean property that drivers should attach 1662ab7a664fSNicholas Kazlauskas * with drm_connector_attach_vrr_capable_property() on connectors that 1663ab7a664fSNicholas Kazlauskas * could support variable refresh rates. Drivers should update the 1664ab7a664fSNicholas Kazlauskas * property value by calling drm_connector_set_vrr_capable_property(). 1665ab7a664fSNicholas Kazlauskas * 1666ab7a664fSNicholas Kazlauskas * Absence of the property should indicate absence of support. 1667ab7a664fSNicholas Kazlauskas * 166877086014SDaniel Vetter * "VRR_ENABLED": 1669ab7a664fSNicholas Kazlauskas * Default &drm_crtc boolean property that notifies the driver that the 1670ab7a664fSNicholas Kazlauskas * content on the CRTC is suitable for variable refresh rate presentation. 1671ab7a664fSNicholas Kazlauskas * The driver will take this property as a hint to enable variable 1672ab7a664fSNicholas Kazlauskas * refresh rate support if the receiver supports it, ie. if the 1673ab7a664fSNicholas Kazlauskas * "vrr_capable" property is true on the &drm_connector object. The 1674ab7a664fSNicholas Kazlauskas * vertical front porch duration will be extended until page-flip or 1675ab7a664fSNicholas Kazlauskas * timeout when enabled. 1676ab7a664fSNicholas Kazlauskas * 1677ab7a664fSNicholas Kazlauskas * The minimum vertical front porch duration is defined as the vertical 1678ab7a664fSNicholas Kazlauskas * front porch duration for the current mode. 1679ab7a664fSNicholas Kazlauskas * 1680ab7a664fSNicholas Kazlauskas * The maximum vertical front porch duration is greater than or equal to 1681ab7a664fSNicholas Kazlauskas * the minimum vertical front porch duration. The duration is derived 1682ab7a664fSNicholas Kazlauskas * from the minimum supported variable refresh rate for the connector. 1683ab7a664fSNicholas Kazlauskas * 1684ab7a664fSNicholas Kazlauskas * The driver may place further restrictions within these minimum 1685ab7a664fSNicholas Kazlauskas * and maximum bounds. 1686ab7a664fSNicholas Kazlauskas */ 1687ab7a664fSNicholas Kazlauskas 1688ab7a664fSNicholas Kazlauskas /** 1689ba1b0f6cSNicholas Kazlauskas * drm_connector_attach_vrr_capable_property - creates the 1690ba1b0f6cSNicholas Kazlauskas * vrr_capable property 1691ba1b0f6cSNicholas Kazlauskas * @connector: connector to create the vrr_capable property on. 1692ba1b0f6cSNicholas Kazlauskas * 1693ba1b0f6cSNicholas Kazlauskas * This is used by atomic drivers to add support for querying 1694ba1b0f6cSNicholas Kazlauskas * variable refresh rate capability for a connector. 1695ba1b0f6cSNicholas Kazlauskas * 1696ba1b0f6cSNicholas Kazlauskas * Returns: 169784e543bcSAntonio Borneo * Zero on success, negative errno on failure. 1698ba1b0f6cSNicholas Kazlauskas */ 1699ba1b0f6cSNicholas Kazlauskas int drm_connector_attach_vrr_capable_property( 1700ba1b0f6cSNicholas Kazlauskas struct drm_connector *connector) 1701ba1b0f6cSNicholas Kazlauskas { 1702ba1b0f6cSNicholas Kazlauskas struct drm_device *dev = connector->dev; 1703ba1b0f6cSNicholas Kazlauskas struct drm_property *prop; 1704ba1b0f6cSNicholas Kazlauskas 1705ba1b0f6cSNicholas Kazlauskas if (!connector->vrr_capable_property) { 1706ba1b0f6cSNicholas Kazlauskas prop = drm_property_create_bool(dev, DRM_MODE_PROP_IMMUTABLE, 1707ba1b0f6cSNicholas Kazlauskas "vrr_capable"); 1708ba1b0f6cSNicholas Kazlauskas if (!prop) 1709ba1b0f6cSNicholas Kazlauskas return -ENOMEM; 1710ba1b0f6cSNicholas Kazlauskas 1711ba1b0f6cSNicholas Kazlauskas connector->vrr_capable_property = prop; 1712ba1b0f6cSNicholas Kazlauskas drm_object_attach_property(&connector->base, prop, 0); 1713ba1b0f6cSNicholas Kazlauskas } 1714ba1b0f6cSNicholas Kazlauskas 1715ba1b0f6cSNicholas Kazlauskas return 0; 1716ba1b0f6cSNicholas Kazlauskas } 1717ba1b0f6cSNicholas Kazlauskas EXPORT_SYMBOL(drm_connector_attach_vrr_capable_property); 1718ba1b0f6cSNicholas Kazlauskas 1719ba1b0f6cSNicholas Kazlauskas /** 17208f6e1e22SMaarten Lankhorst * drm_connector_attach_scaling_mode_property - attach atomic scaling mode property 17218f6e1e22SMaarten Lankhorst * @connector: connector to attach scaling mode property on. 17228f6e1e22SMaarten Lankhorst * @scaling_mode_mask: or'ed mask of BIT(%DRM_MODE_SCALE_\*). 17238f6e1e22SMaarten Lankhorst * 17248f6e1e22SMaarten Lankhorst * This is used to add support for scaling mode to atomic drivers. 17258f6e1e22SMaarten Lankhorst * The scaling mode will be set to &drm_connector_state.picture_aspect_ratio 17268f6e1e22SMaarten Lankhorst * and can be used from &drm_connector_helper_funcs->atomic_check for validation. 17278f6e1e22SMaarten Lankhorst * 17288f6e1e22SMaarten Lankhorst * This is the atomic version of drm_mode_create_scaling_mode_property(). 17298f6e1e22SMaarten Lankhorst * 17308f6e1e22SMaarten Lankhorst * Returns: 17318f6e1e22SMaarten Lankhorst * Zero on success, negative errno on failure. 17328f6e1e22SMaarten Lankhorst */ 17338f6e1e22SMaarten Lankhorst int drm_connector_attach_scaling_mode_property(struct drm_connector *connector, 17348f6e1e22SMaarten Lankhorst u32 scaling_mode_mask) 17358f6e1e22SMaarten Lankhorst { 17368f6e1e22SMaarten Lankhorst struct drm_device *dev = connector->dev; 17378f6e1e22SMaarten Lankhorst struct drm_property *scaling_mode_property; 173830e9db6dSVille Syrjälä int i; 17398f6e1e22SMaarten Lankhorst const unsigned valid_scaling_mode_mask = 17408f6e1e22SMaarten Lankhorst (1U << ARRAY_SIZE(drm_scaling_mode_enum_list)) - 1; 17418f6e1e22SMaarten Lankhorst 17428f6e1e22SMaarten Lankhorst if (WARN_ON(hweight32(scaling_mode_mask) < 2 || 17438f6e1e22SMaarten Lankhorst scaling_mode_mask & ~valid_scaling_mode_mask)) 17448f6e1e22SMaarten Lankhorst return -EINVAL; 17458f6e1e22SMaarten Lankhorst 17468f6e1e22SMaarten Lankhorst scaling_mode_property = 17478f6e1e22SMaarten Lankhorst drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode", 17488f6e1e22SMaarten Lankhorst hweight32(scaling_mode_mask)); 17498f6e1e22SMaarten Lankhorst 17508f6e1e22SMaarten Lankhorst if (!scaling_mode_property) 17518f6e1e22SMaarten Lankhorst return -ENOMEM; 17528f6e1e22SMaarten Lankhorst 17538f6e1e22SMaarten Lankhorst for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++) { 17548f6e1e22SMaarten Lankhorst int ret; 17558f6e1e22SMaarten Lankhorst 17568f6e1e22SMaarten Lankhorst if (!(BIT(i) & scaling_mode_mask)) 17578f6e1e22SMaarten Lankhorst continue; 17588f6e1e22SMaarten Lankhorst 175930e9db6dSVille Syrjälä ret = drm_property_add_enum(scaling_mode_property, 17608f6e1e22SMaarten Lankhorst drm_scaling_mode_enum_list[i].type, 17618f6e1e22SMaarten Lankhorst drm_scaling_mode_enum_list[i].name); 17628f6e1e22SMaarten Lankhorst 17638f6e1e22SMaarten Lankhorst if (ret) { 17648f6e1e22SMaarten Lankhorst drm_property_destroy(dev, scaling_mode_property); 17658f6e1e22SMaarten Lankhorst 17668f6e1e22SMaarten Lankhorst return ret; 17678f6e1e22SMaarten Lankhorst } 17688f6e1e22SMaarten Lankhorst } 17698f6e1e22SMaarten Lankhorst 17708f6e1e22SMaarten Lankhorst drm_object_attach_property(&connector->base, 17718f6e1e22SMaarten Lankhorst scaling_mode_property, 0); 17728f6e1e22SMaarten Lankhorst 17738f6e1e22SMaarten Lankhorst connector->scaling_mode_property = scaling_mode_property; 17748f6e1e22SMaarten Lankhorst 17758f6e1e22SMaarten Lankhorst return 0; 17768f6e1e22SMaarten Lankhorst } 17778f6e1e22SMaarten Lankhorst EXPORT_SYMBOL(drm_connector_attach_scaling_mode_property); 17788f6e1e22SMaarten Lankhorst 17798f6e1e22SMaarten Lankhorst /** 178052217195SDaniel Vetter * drm_mode_create_aspect_ratio_property - create aspect ratio property 178152217195SDaniel Vetter * @dev: DRM device 178252217195SDaniel Vetter * 178352217195SDaniel Vetter * Called by a driver the first time it's needed, must be attached to desired 178452217195SDaniel Vetter * connectors. 178552217195SDaniel Vetter * 178652217195SDaniel Vetter * Returns: 178752217195SDaniel Vetter * Zero on success, negative errno on failure. 178852217195SDaniel Vetter */ 178952217195SDaniel Vetter int drm_mode_create_aspect_ratio_property(struct drm_device *dev) 179052217195SDaniel Vetter { 179152217195SDaniel Vetter if (dev->mode_config.aspect_ratio_property) 179252217195SDaniel Vetter return 0; 179352217195SDaniel Vetter 179452217195SDaniel Vetter dev->mode_config.aspect_ratio_property = 179552217195SDaniel Vetter drm_property_create_enum(dev, 0, "aspect ratio", 179652217195SDaniel Vetter drm_aspect_ratio_enum_list, 179752217195SDaniel Vetter ARRAY_SIZE(drm_aspect_ratio_enum_list)); 179852217195SDaniel Vetter 179952217195SDaniel Vetter if (dev->mode_config.aspect_ratio_property == NULL) 180052217195SDaniel Vetter return -ENOMEM; 180152217195SDaniel Vetter 180252217195SDaniel Vetter return 0; 180352217195SDaniel Vetter } 180452217195SDaniel Vetter EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); 180552217195SDaniel Vetter 180652217195SDaniel Vetter /** 1807d2c6a405SUma Shankar * DOC: standard connector properties 1808d2c6a405SUma Shankar * 1809d2c6a405SUma Shankar * Colorspace: 1810d2c6a405SUma Shankar * This property helps select a suitable colorspace based on the sink 1811d2c6a405SUma Shankar * capability. Modern sink devices support wider gamut like BT2020. 1812d2c6a405SUma Shankar * This helps switch to BT2020 mode if the BT2020 encoded video stream 1813d2c6a405SUma Shankar * is being played by the user, same for any other colorspace. Thereby 1814d2c6a405SUma Shankar * giving a good visual experience to users. 1815d2c6a405SUma Shankar * 1816d2c6a405SUma Shankar * The expectation from userspace is that it should parse the EDID 1817d2c6a405SUma Shankar * and get supported colorspaces. Use this property and switch to the 1818d2c6a405SUma Shankar * one supported. Sink supported colorspaces should be retrieved by 1819d2c6a405SUma Shankar * userspace from EDID and driver will not explicitly expose them. 1820d2c6a405SUma Shankar * 1821d2c6a405SUma Shankar * Basically the expectation from userspace is: 1822d2c6a405SUma Shankar * - Set up CRTC DEGAMMA/CTM/GAMMA to convert to some sink 1823d2c6a405SUma Shankar * colorspace 1824d2c6a405SUma Shankar * - Set this new property to let the sink know what it 1825d2c6a405SUma Shankar * converted the CRTC output to. 1826d2c6a405SUma Shankar * - This property is just to inform sink what colorspace 1827d2c6a405SUma Shankar * source is trying to drive. 1828d2c6a405SUma Shankar * 18298806cd3aSGwan-gyeong Mun * Because between HDMI and DP have different colorspaces, 183045cf0e91SGwan-gyeong Mun * drm_mode_create_hdmi_colorspace_property() is used for HDMI connector and 183145cf0e91SGwan-gyeong Mun * drm_mode_create_dp_colorspace_property() is used for DP connector. 1832d2c6a405SUma Shankar */ 18338806cd3aSGwan-gyeong Mun 18348806cd3aSGwan-gyeong Mun /** 18358806cd3aSGwan-gyeong Mun * drm_mode_create_hdmi_colorspace_property - create hdmi colorspace property 18368806cd3aSGwan-gyeong Mun * @connector: connector to create the Colorspace property on. 18378806cd3aSGwan-gyeong Mun * 18388806cd3aSGwan-gyeong Mun * Called by a driver the first time it's needed, must be attached to desired 18398806cd3aSGwan-gyeong Mun * HDMI connectors. 18408806cd3aSGwan-gyeong Mun * 18418806cd3aSGwan-gyeong Mun * Returns: 184284e543bcSAntonio Borneo * Zero on success, negative errno on failure. 18438806cd3aSGwan-gyeong Mun */ 18448806cd3aSGwan-gyeong Mun int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector) 1845d2c6a405SUma Shankar { 1846d2c6a405SUma Shankar struct drm_device *dev = connector->dev; 1847d2c6a405SUma Shankar 18488806cd3aSGwan-gyeong Mun if (connector->colorspace_property) 18498806cd3aSGwan-gyeong Mun return 0; 18508806cd3aSGwan-gyeong Mun 18518806cd3aSGwan-gyeong Mun connector->colorspace_property = 18528806cd3aSGwan-gyeong Mun drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, "Colorspace", 1853d2c6a405SUma Shankar hdmi_colorspaces, 1854d2c6a405SUma Shankar ARRAY_SIZE(hdmi_colorspaces)); 18558806cd3aSGwan-gyeong Mun 18568806cd3aSGwan-gyeong Mun if (!connector->colorspace_property) 1857d2c6a405SUma Shankar return -ENOMEM; 1858d2c6a405SUma Shankar 1859d2c6a405SUma Shankar return 0; 1860d2c6a405SUma Shankar } 18618806cd3aSGwan-gyeong Mun EXPORT_SYMBOL(drm_mode_create_hdmi_colorspace_property); 1862d2c6a405SUma Shankar 1863d2c6a405SUma Shankar /** 186445cf0e91SGwan-gyeong Mun * drm_mode_create_dp_colorspace_property - create dp colorspace property 186545cf0e91SGwan-gyeong Mun * @connector: connector to create the Colorspace property on. 186645cf0e91SGwan-gyeong Mun * 186745cf0e91SGwan-gyeong Mun * Called by a driver the first time it's needed, must be attached to desired 186845cf0e91SGwan-gyeong Mun * DP connectors. 186945cf0e91SGwan-gyeong Mun * 187045cf0e91SGwan-gyeong Mun * Returns: 187184e543bcSAntonio Borneo * Zero on success, negative errno on failure. 187245cf0e91SGwan-gyeong Mun */ 187345cf0e91SGwan-gyeong Mun int drm_mode_create_dp_colorspace_property(struct drm_connector *connector) 187445cf0e91SGwan-gyeong Mun { 187545cf0e91SGwan-gyeong Mun struct drm_device *dev = connector->dev; 187645cf0e91SGwan-gyeong Mun 187745cf0e91SGwan-gyeong Mun if (connector->colorspace_property) 187845cf0e91SGwan-gyeong Mun return 0; 187945cf0e91SGwan-gyeong Mun 188045cf0e91SGwan-gyeong Mun connector->colorspace_property = 188145cf0e91SGwan-gyeong Mun drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, "Colorspace", 188245cf0e91SGwan-gyeong Mun dp_colorspaces, 188345cf0e91SGwan-gyeong Mun ARRAY_SIZE(dp_colorspaces)); 188445cf0e91SGwan-gyeong Mun 188545cf0e91SGwan-gyeong Mun if (!connector->colorspace_property) 188645cf0e91SGwan-gyeong Mun return -ENOMEM; 188745cf0e91SGwan-gyeong Mun 188845cf0e91SGwan-gyeong Mun return 0; 188945cf0e91SGwan-gyeong Mun } 189045cf0e91SGwan-gyeong Mun EXPORT_SYMBOL(drm_mode_create_dp_colorspace_property); 189152217195SDaniel Vetter 189297e14fbeSDaniel Vetter /** 189352217195SDaniel Vetter * drm_mode_create_content_type_property - create content type property 189452217195SDaniel Vetter * @dev: DRM device 189597e14fbeSDaniel Vetter * 189652217195SDaniel Vetter * Called by a driver the first time it's needed, must be attached to desired 189752217195SDaniel Vetter * connectors. 189852217195SDaniel Vetter * 189952217195SDaniel Vetter * Returns: 190052217195SDaniel Vetter * Zero on success, negative errno on failure. 190152217195SDaniel Vetter */ 190252217195SDaniel Vetter int drm_mode_create_content_type_property(struct drm_device *dev) 190352217195SDaniel Vetter { 190452217195SDaniel Vetter if (dev->mode_config.content_type_property) 190597e14fbeSDaniel Vetter return 0; 190652217195SDaniel Vetter 190752217195SDaniel Vetter dev->mode_config.content_type_property = 190852217195SDaniel Vetter drm_property_create_enum(dev, 0, "content type", 190952217195SDaniel Vetter drm_content_type_enum_list, 191052217195SDaniel Vetter ARRAY_SIZE(drm_content_type_enum_list)); 191152217195SDaniel Vetter 191252217195SDaniel Vetter if (dev->mode_config.content_type_property == NULL) 191352217195SDaniel Vetter return -ENOMEM; 191452217195SDaniel Vetter 191552217195SDaniel Vetter return 0; 191652217195SDaniel Vetter } 191752217195SDaniel Vetter EXPORT_SYMBOL(drm_mode_create_content_type_property); 191852217195SDaniel Vetter 191952217195SDaniel Vetter /** 192052217195SDaniel Vetter * drm_mode_create_suggested_offset_properties - create suggests offset properties 192152217195SDaniel Vetter * @dev: DRM device 192252217195SDaniel Vetter * 192384e543bcSAntonio Borneo * Create the suggested x/y offset property for connectors. 192452217195SDaniel Vetter */ 192552217195SDaniel Vetter int drm_mode_create_suggested_offset_properties(struct drm_device *dev) 192652217195SDaniel Vetter { 192752217195SDaniel Vetter if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) 192852217195SDaniel Vetter return 0; 192952217195SDaniel Vetter 193052217195SDaniel Vetter dev->mode_config.suggested_x_property = 193152217195SDaniel Vetter drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); 193252217195SDaniel Vetter 193352217195SDaniel Vetter dev->mode_config.suggested_y_property = 193452217195SDaniel Vetter drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); 193552217195SDaniel Vetter 193652217195SDaniel Vetter if (dev->mode_config.suggested_x_property == NULL || 193752217195SDaniel Vetter dev->mode_config.suggested_y_property == NULL) 193852217195SDaniel Vetter return -ENOMEM; 193952217195SDaniel Vetter return 0; 194052217195SDaniel Vetter } 194152217195SDaniel Vetter EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); 194252217195SDaniel Vetter 194352217195SDaniel Vetter /** 194452217195SDaniel Vetter * drm_connector_set_path_property - set tile property on connector 194552217195SDaniel Vetter * @connector: connector to set property on. 194652217195SDaniel Vetter * @path: path to use for property; must not be NULL. 194752217195SDaniel Vetter * 194852217195SDaniel Vetter * This creates a property to expose to userspace to specify a 194952217195SDaniel Vetter * connector path. This is mainly used for DisplayPort MST where 195052217195SDaniel Vetter * connectors have a topology and we want to allow userspace to give 195152217195SDaniel Vetter * them more meaningful names. 195252217195SDaniel Vetter * 195352217195SDaniel Vetter * Returns: 195452217195SDaniel Vetter * Zero on success, negative errno on failure. 195552217195SDaniel Vetter */ 195652217195SDaniel Vetter int drm_connector_set_path_property(struct drm_connector *connector, 195752217195SDaniel Vetter const char *path) 195852217195SDaniel Vetter { 195952217195SDaniel Vetter struct drm_device *dev = connector->dev; 196052217195SDaniel Vetter int ret; 196152217195SDaniel Vetter 196252217195SDaniel Vetter ret = drm_property_replace_global_blob(dev, 196352217195SDaniel Vetter &connector->path_blob_ptr, 196452217195SDaniel Vetter strlen(path) + 1, 196552217195SDaniel Vetter path, 196652217195SDaniel Vetter &connector->base, 196752217195SDaniel Vetter dev->mode_config.path_property); 196852217195SDaniel Vetter return ret; 196952217195SDaniel Vetter } 197052217195SDaniel Vetter EXPORT_SYMBOL(drm_connector_set_path_property); 197152217195SDaniel Vetter 197252217195SDaniel Vetter /** 197352217195SDaniel Vetter * drm_connector_set_tile_property - set tile property on connector 197452217195SDaniel Vetter * @connector: connector to set property on. 197552217195SDaniel Vetter * 197652217195SDaniel Vetter * This looks up the tile information for a connector, and creates a 197752217195SDaniel Vetter * property for userspace to parse if it exists. The property is of 197852217195SDaniel Vetter * the form of 8 integers using ':' as a separator. 19792de3a078SManasi Navare * This is used for dual port tiled displays with DisplayPort SST 19802de3a078SManasi Navare * or DisplayPort MST connectors. 198152217195SDaniel Vetter * 198252217195SDaniel Vetter * Returns: 198352217195SDaniel Vetter * Zero on success, errno on failure. 198452217195SDaniel Vetter */ 198552217195SDaniel Vetter int drm_connector_set_tile_property(struct drm_connector *connector) 198652217195SDaniel Vetter { 198752217195SDaniel Vetter struct drm_device *dev = connector->dev; 198852217195SDaniel Vetter char tile[256]; 198952217195SDaniel Vetter int ret; 199052217195SDaniel Vetter 199152217195SDaniel Vetter if (!connector->has_tile) { 199252217195SDaniel Vetter ret = drm_property_replace_global_blob(dev, 199352217195SDaniel Vetter &connector->tile_blob_ptr, 199452217195SDaniel Vetter 0, 199552217195SDaniel Vetter NULL, 199652217195SDaniel Vetter &connector->base, 199752217195SDaniel Vetter dev->mode_config.tile_property); 199852217195SDaniel Vetter return ret; 199952217195SDaniel Vetter } 200052217195SDaniel Vetter 200152217195SDaniel Vetter snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", 200252217195SDaniel Vetter connector->tile_group->id, connector->tile_is_single_monitor, 200352217195SDaniel Vetter connector->num_h_tile, connector->num_v_tile, 200452217195SDaniel Vetter connector->tile_h_loc, connector->tile_v_loc, 200552217195SDaniel Vetter connector->tile_h_size, connector->tile_v_size); 200652217195SDaniel Vetter 200752217195SDaniel Vetter ret = drm_property_replace_global_blob(dev, 200852217195SDaniel Vetter &connector->tile_blob_ptr, 200952217195SDaniel Vetter strlen(tile) + 1, 201052217195SDaniel Vetter tile, 201152217195SDaniel Vetter &connector->base, 201252217195SDaniel Vetter dev->mode_config.tile_property); 201352217195SDaniel Vetter return ret; 201452217195SDaniel Vetter } 201597e14fbeSDaniel Vetter EXPORT_SYMBOL(drm_connector_set_tile_property); 201652217195SDaniel Vetter 201752217195SDaniel Vetter /** 2018c555f023SDaniel Vetter * drm_connector_update_edid_property - update the edid property of a connector 201952217195SDaniel Vetter * @connector: drm connector 202052217195SDaniel Vetter * @edid: new value of the edid property 202152217195SDaniel Vetter * 202252217195SDaniel Vetter * This function creates a new blob modeset object and assigns its id to the 202352217195SDaniel Vetter * connector's edid property. 20242de3a078SManasi Navare * Since we also parse tile information from EDID's displayID block, we also 20252de3a078SManasi Navare * set the connector's tile property here. See drm_connector_set_tile_property() 20262de3a078SManasi Navare * for more details. 202752217195SDaniel Vetter * 202852217195SDaniel Vetter * Returns: 202952217195SDaniel Vetter * Zero on success, negative errno on failure. 203052217195SDaniel Vetter */ 2031c555f023SDaniel Vetter int drm_connector_update_edid_property(struct drm_connector *connector, 203252217195SDaniel Vetter const struct edid *edid) 203352217195SDaniel Vetter { 203452217195SDaniel Vetter struct drm_device *dev = connector->dev; 203552217195SDaniel Vetter size_t size = 0; 203652217195SDaniel Vetter int ret; 20375186421cSStanislav Lisovskiy const struct edid *old_edid; 203852217195SDaniel Vetter 203952217195SDaniel Vetter /* ignore requests to set edid when overridden */ 204052217195SDaniel Vetter if (connector->override_edid) 204152217195SDaniel Vetter return 0; 204252217195SDaniel Vetter 204352217195SDaniel Vetter if (edid) 204452217195SDaniel Vetter size = EDID_LENGTH * (1 + edid->extensions); 204552217195SDaniel Vetter 2046170178feSKeith Packard /* Set the display info, using edid if available, otherwise 204784e543bcSAntonio Borneo * resetting the values to defaults. This duplicates the work 2048170178feSKeith Packard * done in drm_add_edid_modes, but that function is not 2049170178feSKeith Packard * consistently called before this one in all drivers and the 2050170178feSKeith Packard * computation is cheap enough that it seems better to 2051170178feSKeith Packard * duplicate it rather than attempt to ensure some arbitrary 2052170178feSKeith Packard * ordering of calls. 2053170178feSKeith Packard */ 2054170178feSKeith Packard if (edid) 2055170178feSKeith Packard drm_add_display_info(connector, edid); 2056170178feSKeith Packard else 2057170178feSKeith Packard drm_reset_display_info(connector); 2058170178feSKeith Packard 2059092c367aSVille Syrjälä drm_update_tile_info(connector, edid); 2060092c367aSVille Syrjälä 20615186421cSStanislav Lisovskiy if (connector->edid_blob_ptr) { 20625186421cSStanislav Lisovskiy old_edid = (const struct edid *)connector->edid_blob_ptr->data; 20635186421cSStanislav Lisovskiy if (old_edid) { 20645186421cSStanislav Lisovskiy if (!drm_edid_are_equal(edid, old_edid)) { 20655186421cSStanislav Lisovskiy DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Edid was changed.\n", 20665186421cSStanislav Lisovskiy connector->base.id, connector->name); 20675186421cSStanislav Lisovskiy 20685186421cSStanislav Lisovskiy connector->epoch_counter += 1; 20695186421cSStanislav Lisovskiy DRM_DEBUG_KMS("Updating change counter to %llu\n", 20705186421cSStanislav Lisovskiy connector->epoch_counter); 20715186421cSStanislav Lisovskiy } 20725186421cSStanislav Lisovskiy } 20735186421cSStanislav Lisovskiy } 20745186421cSStanislav Lisovskiy 207566660d4cSDave Airlie drm_object_property_set_value(&connector->base, 207666660d4cSDave Airlie dev->mode_config.non_desktop_property, 207766660d4cSDave Airlie connector->display_info.non_desktop); 207866660d4cSDave Airlie 207952217195SDaniel Vetter ret = drm_property_replace_global_blob(dev, 208052217195SDaniel Vetter &connector->edid_blob_ptr, 208152217195SDaniel Vetter size, 208252217195SDaniel Vetter edid, 208352217195SDaniel Vetter &connector->base, 208452217195SDaniel Vetter dev->mode_config.edid_property); 20852de3a078SManasi Navare if (ret) 208652217195SDaniel Vetter return ret; 20872de3a078SManasi Navare return drm_connector_set_tile_property(connector); 208852217195SDaniel Vetter } 2089c555f023SDaniel Vetter EXPORT_SYMBOL(drm_connector_update_edid_property); 209052217195SDaniel Vetter 209140ee6fbeSManasi Navare /** 209297e14fbeSDaniel Vetter * drm_connector_set_link_status_property - Set link status property of a connector 209340ee6fbeSManasi Navare * @connector: drm connector 209440ee6fbeSManasi Navare * @link_status: new value of link status property (0: Good, 1: Bad) 209540ee6fbeSManasi Navare * 209640ee6fbeSManasi Navare * In usual working scenario, this link status property will always be set to 209740ee6fbeSManasi Navare * "GOOD". If something fails during or after a mode set, the kernel driver 209840ee6fbeSManasi Navare * may set this link status property to "BAD". The caller then needs to send a 209940ee6fbeSManasi Navare * hotplug uevent for userspace to re-check the valid modes through 210040ee6fbeSManasi Navare * GET_CONNECTOR_IOCTL and retry modeset. 210140ee6fbeSManasi Navare * 210240ee6fbeSManasi Navare * Note: Drivers cannot rely on userspace to support this property and 210340ee6fbeSManasi Navare * issue a modeset. As such, they may choose to handle issues (like 210440ee6fbeSManasi Navare * re-training a link) without userspace's intervention. 210540ee6fbeSManasi Navare * 210640ee6fbeSManasi Navare * The reason for adding this property is to handle link training failures, but 210740ee6fbeSManasi Navare * it is not limited to DP or link training. For example, if we implement 210840ee6fbeSManasi Navare * asynchronous setcrtc, this property can be used to report any failures in that. 210940ee6fbeSManasi Navare */ 211097e14fbeSDaniel Vetter void drm_connector_set_link_status_property(struct drm_connector *connector, 211140ee6fbeSManasi Navare uint64_t link_status) 211240ee6fbeSManasi Navare { 211340ee6fbeSManasi Navare struct drm_device *dev = connector->dev; 211440ee6fbeSManasi Navare 211540ee6fbeSManasi Navare drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 211640ee6fbeSManasi Navare connector->state->link_status = link_status; 211740ee6fbeSManasi Navare drm_modeset_unlock(&dev->mode_config.connection_mutex); 211840ee6fbeSManasi Navare } 211997e14fbeSDaniel Vetter EXPORT_SYMBOL(drm_connector_set_link_status_property); 212040ee6fbeSManasi Navare 21218d70f395SHans de Goede /** 212247e22ff1SRadhakrishna Sripada * drm_connector_attach_max_bpc_property - attach "max bpc" property 212347e22ff1SRadhakrishna Sripada * @connector: connector to attach max bpc property on. 212447e22ff1SRadhakrishna Sripada * @min: The minimum bit depth supported by the connector. 212547e22ff1SRadhakrishna Sripada * @max: The maximum bit depth supported by the connector. 212647e22ff1SRadhakrishna Sripada * 212747e22ff1SRadhakrishna Sripada * This is used to add support for limiting the bit depth on a connector. 212847e22ff1SRadhakrishna Sripada * 212947e22ff1SRadhakrishna Sripada * Returns: 213047e22ff1SRadhakrishna Sripada * Zero on success, negative errno on failure. 213147e22ff1SRadhakrishna Sripada */ 213247e22ff1SRadhakrishna Sripada int drm_connector_attach_max_bpc_property(struct drm_connector *connector, 213347e22ff1SRadhakrishna Sripada int min, int max) 213447e22ff1SRadhakrishna Sripada { 213547e22ff1SRadhakrishna Sripada struct drm_device *dev = connector->dev; 213647e22ff1SRadhakrishna Sripada struct drm_property *prop; 213747e22ff1SRadhakrishna Sripada 213847e22ff1SRadhakrishna Sripada prop = connector->max_bpc_property; 213947e22ff1SRadhakrishna Sripada if (!prop) { 214047e22ff1SRadhakrishna Sripada prop = drm_property_create_range(dev, 0, "max bpc", min, max); 214147e22ff1SRadhakrishna Sripada if (!prop) 214247e22ff1SRadhakrishna Sripada return -ENOMEM; 214347e22ff1SRadhakrishna Sripada 214447e22ff1SRadhakrishna Sripada connector->max_bpc_property = prop; 214547e22ff1SRadhakrishna Sripada } 214647e22ff1SRadhakrishna Sripada 214747e22ff1SRadhakrishna Sripada drm_object_attach_property(&connector->base, prop, max); 214847e22ff1SRadhakrishna Sripada connector->state->max_requested_bpc = max; 214947e22ff1SRadhakrishna Sripada connector->state->max_bpc = max; 215047e22ff1SRadhakrishna Sripada 215147e22ff1SRadhakrishna Sripada return 0; 215247e22ff1SRadhakrishna Sripada } 215347e22ff1SRadhakrishna Sripada EXPORT_SYMBOL(drm_connector_attach_max_bpc_property); 215447e22ff1SRadhakrishna Sripada 215547e22ff1SRadhakrishna Sripada /** 2156ba1b0f6cSNicholas Kazlauskas * drm_connector_set_vrr_capable_property - sets the variable refresh rate 2157ba1b0f6cSNicholas Kazlauskas * capable property for a connector 2158ba1b0f6cSNicholas Kazlauskas * @connector: drm connector 2159ba1b0f6cSNicholas Kazlauskas * @capable: True if the connector is variable refresh rate capable 2160ba1b0f6cSNicholas Kazlauskas * 2161ba1b0f6cSNicholas Kazlauskas * Should be used by atomic drivers to update the indicated support for 2162ba1b0f6cSNicholas Kazlauskas * variable refresh rate over a connector. 2163ba1b0f6cSNicholas Kazlauskas */ 2164ba1b0f6cSNicholas Kazlauskas void drm_connector_set_vrr_capable_property( 2165ba1b0f6cSNicholas Kazlauskas struct drm_connector *connector, bool capable) 2166ba1b0f6cSNicholas Kazlauskas { 2167ba1b0f6cSNicholas Kazlauskas drm_object_property_set_value(&connector->base, 2168ba1b0f6cSNicholas Kazlauskas connector->vrr_capable_property, 2169ba1b0f6cSNicholas Kazlauskas capable); 2170ba1b0f6cSNicholas Kazlauskas } 2171ba1b0f6cSNicholas Kazlauskas EXPORT_SYMBOL(drm_connector_set_vrr_capable_property); 2172ba1b0f6cSNicholas Kazlauskas 2173ba1b0f6cSNicholas Kazlauskas /** 217484e543bcSAntonio Borneo * drm_connector_set_panel_orientation - sets the connector's panel_orientation 217569654c63SDerek Basehore * @connector: connector for which to set the panel-orientation property. 217669654c63SDerek Basehore * @panel_orientation: drm_panel_orientation value to set 21778d70f395SHans de Goede * 217869654c63SDerek Basehore * This function sets the connector's panel_orientation and attaches 217969654c63SDerek Basehore * a "panel orientation" property to the connector. 21808d70f395SHans de Goede * 218169654c63SDerek Basehore * Calling this function on a connector where the panel_orientation has 218269654c63SDerek Basehore * already been set is a no-op (e.g. the orientation has been overridden with 218369654c63SDerek Basehore * a kernel commandline option). 218469654c63SDerek Basehore * 218569654c63SDerek Basehore * It is allowed to call this function with a panel_orientation of 218669654c63SDerek Basehore * DRM_MODE_PANEL_ORIENTATION_UNKNOWN, in which case it is a no-op. 21878d70f395SHans de Goede * 21888d70f395SHans de Goede * Returns: 21898d70f395SHans de Goede * Zero on success, negative errno on failure. 21908d70f395SHans de Goede */ 219169654c63SDerek Basehore int drm_connector_set_panel_orientation( 219269654c63SDerek Basehore struct drm_connector *connector, 219369654c63SDerek Basehore enum drm_panel_orientation panel_orientation) 21948d70f395SHans de Goede { 21958d70f395SHans de Goede struct drm_device *dev = connector->dev; 21968d70f395SHans de Goede struct drm_display_info *info = &connector->display_info; 21978d70f395SHans de Goede struct drm_property *prop; 21988d70f395SHans de Goede 219969654c63SDerek Basehore /* Already set? */ 220069654c63SDerek Basehore if (info->panel_orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN) 22018d70f395SHans de Goede return 0; 22028d70f395SHans de Goede 220369654c63SDerek Basehore /* Don't attach the property if the orientation is unknown */ 220469654c63SDerek Basehore if (panel_orientation == DRM_MODE_PANEL_ORIENTATION_UNKNOWN) 220569654c63SDerek Basehore return 0; 220669654c63SDerek Basehore 220769654c63SDerek Basehore info->panel_orientation = panel_orientation; 220869654c63SDerek Basehore 22098d70f395SHans de Goede prop = dev->mode_config.panel_orientation_property; 22108d70f395SHans de Goede if (!prop) { 22118d70f395SHans de Goede prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 22128d70f395SHans de Goede "panel orientation", 22138d70f395SHans de Goede drm_panel_orientation_enum_list, 22148d70f395SHans de Goede ARRAY_SIZE(drm_panel_orientation_enum_list)); 22158d70f395SHans de Goede if (!prop) 22168d70f395SHans de Goede return -ENOMEM; 22178d70f395SHans de Goede 22188d70f395SHans de Goede dev->mode_config.panel_orientation_property = prop; 22198d70f395SHans de Goede } 22208d70f395SHans de Goede 22218d70f395SHans de Goede drm_object_attach_property(&connector->base, prop, 22228d70f395SHans de Goede info->panel_orientation); 22238d70f395SHans de Goede return 0; 22248d70f395SHans de Goede } 222569654c63SDerek Basehore EXPORT_SYMBOL(drm_connector_set_panel_orientation); 222669654c63SDerek Basehore 222769654c63SDerek Basehore /** 222869654c63SDerek Basehore * drm_connector_set_panel_orientation_with_quirk - 222984e543bcSAntonio Borneo * set the connector's panel_orientation after checking for quirks 223069654c63SDerek Basehore * @connector: connector for which to init the panel-orientation property. 223169654c63SDerek Basehore * @panel_orientation: drm_panel_orientation value to set 223269654c63SDerek Basehore * @width: width in pixels of the panel, used for panel quirk detection 223369654c63SDerek Basehore * @height: height in pixels of the panel, used for panel quirk detection 223469654c63SDerek Basehore * 223569654c63SDerek Basehore * Like drm_connector_set_panel_orientation(), but with a check for platform 223669654c63SDerek Basehore * specific (e.g. DMI based) quirks overriding the passed in panel_orientation. 223769654c63SDerek Basehore * 223869654c63SDerek Basehore * Returns: 223969654c63SDerek Basehore * Zero on success, negative errno on failure. 224069654c63SDerek Basehore */ 224169654c63SDerek Basehore int drm_connector_set_panel_orientation_with_quirk( 224269654c63SDerek Basehore struct drm_connector *connector, 224369654c63SDerek Basehore enum drm_panel_orientation panel_orientation, 224469654c63SDerek Basehore int width, int height) 224569654c63SDerek Basehore { 224669654c63SDerek Basehore int orientation_quirk; 224769654c63SDerek Basehore 224869654c63SDerek Basehore orientation_quirk = drm_get_panel_orientation_quirk(width, height); 224969654c63SDerek Basehore if (orientation_quirk != DRM_MODE_PANEL_ORIENTATION_UNKNOWN) 225069654c63SDerek Basehore panel_orientation = orientation_quirk; 225169654c63SDerek Basehore 225269654c63SDerek Basehore return drm_connector_set_panel_orientation(connector, 225369654c63SDerek Basehore panel_orientation); 225469654c63SDerek Basehore } 225569654c63SDerek Basehore EXPORT_SYMBOL(drm_connector_set_panel_orientation_with_quirk); 22568d70f395SHans de Goede 225797e14fbeSDaniel Vetter int drm_connector_set_obj_prop(struct drm_mode_object *obj, 225852217195SDaniel Vetter struct drm_property *property, 225952217195SDaniel Vetter uint64_t value) 226052217195SDaniel Vetter { 226152217195SDaniel Vetter int ret = -EINVAL; 226252217195SDaniel Vetter struct drm_connector *connector = obj_to_connector(obj); 226352217195SDaniel Vetter 226452217195SDaniel Vetter /* Do DPMS ourselves */ 226552217195SDaniel Vetter if (property == connector->dev->mode_config.dpms_property) { 226652217195SDaniel Vetter ret = (*connector->funcs->dpms)(connector, (int)value); 226752217195SDaniel Vetter } else if (connector->funcs->set_property) 226852217195SDaniel Vetter ret = connector->funcs->set_property(connector, property, value); 226952217195SDaniel Vetter 2270144a7999SDaniel Vetter if (!ret) 227152217195SDaniel Vetter drm_object_property_set_value(&connector->base, property, value); 227252217195SDaniel Vetter return ret; 227352217195SDaniel Vetter } 227452217195SDaniel Vetter 227597e14fbeSDaniel Vetter int drm_connector_property_set_ioctl(struct drm_device *dev, 227652217195SDaniel Vetter void *data, struct drm_file *file_priv) 227752217195SDaniel Vetter { 227852217195SDaniel Vetter struct drm_mode_connector_set_property *conn_set_prop = data; 227952217195SDaniel Vetter struct drm_mode_obj_set_property obj_set_prop = { 228052217195SDaniel Vetter .value = conn_set_prop->value, 228152217195SDaniel Vetter .prop_id = conn_set_prop->prop_id, 228252217195SDaniel Vetter .obj_id = conn_set_prop->connector_id, 228352217195SDaniel Vetter .obj_type = DRM_MODE_OBJECT_CONNECTOR 228452217195SDaniel Vetter }; 228552217195SDaniel Vetter 228652217195SDaniel Vetter /* It does all the locking and checking we need */ 228752217195SDaniel Vetter return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); 228852217195SDaniel Vetter } 228952217195SDaniel Vetter 229052217195SDaniel Vetter static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) 229152217195SDaniel Vetter { 229252217195SDaniel Vetter /* For atomic drivers only state objects are synchronously updated and 2293c2ce66daSBeatriz Martins de Carvalho * protected by modeset locks, so check those first. 2294c2ce66daSBeatriz Martins de Carvalho */ 229552217195SDaniel Vetter if (connector->state) 229652217195SDaniel Vetter return connector->state->best_encoder; 229752217195SDaniel Vetter return connector->encoder; 229852217195SDaniel Vetter } 229952217195SDaniel Vetter 2300c3ff0cdbSAnkit Nautiyal static bool 2301c3ff0cdbSAnkit Nautiyal drm_mode_expose_to_userspace(const struct drm_display_mode *mode, 23028445e2c5SVille Syrjälä const struct list_head *modes, 230352217195SDaniel Vetter const struct drm_file *file_priv) 230452217195SDaniel Vetter { 230552217195SDaniel Vetter /* 230652217195SDaniel Vetter * If user-space hasn't configured the driver to expose the stereo 3D 230752217195SDaniel Vetter * modes, don't expose them. 230852217195SDaniel Vetter */ 230952217195SDaniel Vetter if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) 231052217195SDaniel Vetter return false; 2311c3ff0cdbSAnkit Nautiyal /* 2312c3ff0cdbSAnkit Nautiyal * If user-space hasn't configured the driver to expose the modes 2313c3ff0cdbSAnkit Nautiyal * with aspect-ratio, don't expose them. However if such a mode 2314c3ff0cdbSAnkit Nautiyal * is unique, let it be exposed, but reset the aspect-ratio flags 2315c3ff0cdbSAnkit Nautiyal * while preparing the list of user-modes. 2316c3ff0cdbSAnkit Nautiyal */ 2317c3ff0cdbSAnkit Nautiyal if (!file_priv->aspect_ratio_allowed) { 23188445e2c5SVille Syrjälä const struct drm_display_mode *mode_itr; 2319c3ff0cdbSAnkit Nautiyal 23208445e2c5SVille Syrjälä list_for_each_entry(mode_itr, modes, head) { 23218445e2c5SVille Syrjälä if (mode_itr->expose_to_userspace && 23228445e2c5SVille Syrjälä drm_mode_match(mode_itr, mode, 2323c3ff0cdbSAnkit Nautiyal DRM_MODE_MATCH_TIMINGS | 2324c3ff0cdbSAnkit Nautiyal DRM_MODE_MATCH_CLOCK | 2325c3ff0cdbSAnkit Nautiyal DRM_MODE_MATCH_FLAGS | 2326c3ff0cdbSAnkit Nautiyal DRM_MODE_MATCH_3D_FLAGS)) 2327c3ff0cdbSAnkit Nautiyal return false; 2328c3ff0cdbSAnkit Nautiyal } 23298445e2c5SVille Syrjälä } 233052217195SDaniel Vetter 233152217195SDaniel Vetter return true; 233252217195SDaniel Vetter } 233352217195SDaniel Vetter 233452217195SDaniel Vetter int drm_mode_getconnector(struct drm_device *dev, void *data, 233552217195SDaniel Vetter struct drm_file *file_priv) 233652217195SDaniel Vetter { 233752217195SDaniel Vetter struct drm_mode_get_connector *out_resp = data; 233852217195SDaniel Vetter struct drm_connector *connector; 233952217195SDaniel Vetter struct drm_encoder *encoder; 234052217195SDaniel Vetter struct drm_display_mode *mode; 234152217195SDaniel Vetter int mode_count = 0; 234252217195SDaniel Vetter int encoders_count = 0; 234352217195SDaniel Vetter int ret = 0; 234452217195SDaniel Vetter int copied = 0; 234552217195SDaniel Vetter struct drm_mode_modeinfo u_mode; 234652217195SDaniel Vetter struct drm_mode_modeinfo __user *mode_ptr; 234752217195SDaniel Vetter uint32_t __user *encoder_ptr; 234852217195SDaniel Vetter 234952217195SDaniel Vetter if (!drm_core_check_feature(dev, DRIVER_MODESET)) 235069fdf420SChris Wilson return -EOPNOTSUPP; 235152217195SDaniel Vetter 235252217195SDaniel Vetter memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); 235352217195SDaniel Vetter 2354418da172SKeith Packard connector = drm_connector_lookup(dev, file_priv, out_resp->connector_id); 235591eefc05SDaniel Vetter if (!connector) 235691eefc05SDaniel Vetter return -ENOENT; 235752217195SDaniel Vetter 235862afb4adSJosé Roberto de Souza encoders_count = hweight32(connector->possible_encoders); 235991eefc05SDaniel Vetter 236091eefc05SDaniel Vetter if ((out_resp->count_encoders >= encoders_count) && encoders_count) { 236191eefc05SDaniel Vetter copied = 0; 236291eefc05SDaniel Vetter encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); 236383aefbb8SVille Syrjälä 236462afb4adSJosé Roberto de Souza drm_connector_for_each_possible_encoder(connector, encoder) { 236583aefbb8SVille Syrjälä if (put_user(encoder->base.id, encoder_ptr + copied)) { 236691eefc05SDaniel Vetter ret = -EFAULT; 2367e94ac351SDaniel Vetter goto out; 236891eefc05SDaniel Vetter } 236991eefc05SDaniel Vetter copied++; 237091eefc05SDaniel Vetter } 237191eefc05SDaniel Vetter } 237291eefc05SDaniel Vetter out_resp->count_encoders = encoders_count; 237391eefc05SDaniel Vetter 237491eefc05SDaniel Vetter out_resp->connector_id = connector->base.id; 237591eefc05SDaniel Vetter out_resp->connector_type = connector->connector_type; 237691eefc05SDaniel Vetter out_resp->connector_type_id = connector->connector_type_id; 237791eefc05SDaniel Vetter 237891eefc05SDaniel Vetter mutex_lock(&dev->mode_config.mutex); 237991eefc05SDaniel Vetter if (out_resp->count_modes == 0) { 2380*8f86c82aSSimon Ser if (drm_is_current_master(file_priv)) 238191eefc05SDaniel Vetter connector->funcs->fill_modes(connector, 238291eefc05SDaniel Vetter dev->mode_config.max_width, 238391eefc05SDaniel Vetter dev->mode_config.max_height); 2384*8f86c82aSSimon Ser else 2385*8f86c82aSSimon Ser drm_dbg_kms(dev, "User-space requested a forced probe on [CONNECTOR:%d:%s] but is not the DRM master, demoting to read-only probe", 2386*8f86c82aSSimon Ser connector->base.id, connector->name); 238791eefc05SDaniel Vetter } 238891eefc05SDaniel Vetter 238991eefc05SDaniel Vetter out_resp->mm_width = connector->display_info.width_mm; 239091eefc05SDaniel Vetter out_resp->mm_height = connector->display_info.height_mm; 239191eefc05SDaniel Vetter out_resp->subpixel = connector->display_info.subpixel_order; 239291eefc05SDaniel Vetter out_resp->connection = connector->status; 239391eefc05SDaniel Vetter 239491eefc05SDaniel Vetter /* delayed so we get modes regardless of pre-fill_modes state */ 23958445e2c5SVille Syrjälä list_for_each_entry(mode, &connector->modes, head) { 23968445e2c5SVille Syrjälä WARN_ON(mode->expose_to_userspace); 23978445e2c5SVille Syrjälä 23988445e2c5SVille Syrjälä if (drm_mode_expose_to_userspace(mode, &connector->modes, 2399c3ff0cdbSAnkit Nautiyal file_priv)) { 24008445e2c5SVille Syrjälä mode->expose_to_userspace = true; 240191eefc05SDaniel Vetter mode_count++; 2402c3ff0cdbSAnkit Nautiyal } 24038445e2c5SVille Syrjälä } 240491eefc05SDaniel Vetter 240552217195SDaniel Vetter /* 240652217195SDaniel Vetter * This ioctl is called twice, once to determine how much space is 240752217195SDaniel Vetter * needed, and the 2nd time to fill it. 240852217195SDaniel Vetter */ 240952217195SDaniel Vetter if ((out_resp->count_modes >= mode_count) && mode_count) { 241052217195SDaniel Vetter copied = 0; 241152217195SDaniel Vetter mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; 24128445e2c5SVille Syrjälä list_for_each_entry(mode, &connector->modes, head) { 24138445e2c5SVille Syrjälä if (!mode->expose_to_userspace) 24148445e2c5SVille Syrjälä continue; 24158445e2c5SVille Syrjälä 24168445e2c5SVille Syrjälä /* Clear the tag for the next time around */ 24178445e2c5SVille Syrjälä mode->expose_to_userspace = false; 24188445e2c5SVille Syrjälä 241952217195SDaniel Vetter drm_mode_convert_to_umode(&u_mode, mode); 2420c3ff0cdbSAnkit Nautiyal /* 2421c3ff0cdbSAnkit Nautiyal * Reset aspect ratio flags of user-mode, if modes with 2422c3ff0cdbSAnkit Nautiyal * aspect-ratio are not supported. 2423c3ff0cdbSAnkit Nautiyal */ 2424c3ff0cdbSAnkit Nautiyal if (!file_priv->aspect_ratio_allowed) 2425c3ff0cdbSAnkit Nautiyal u_mode.flags &= ~DRM_MODE_FLAG_PIC_AR_MASK; 242652217195SDaniel Vetter if (copy_to_user(mode_ptr + copied, 242752217195SDaniel Vetter &u_mode, sizeof(u_mode))) { 242852217195SDaniel Vetter ret = -EFAULT; 24298445e2c5SVille Syrjälä 24308445e2c5SVille Syrjälä /* 24318445e2c5SVille Syrjälä * Clear the tag for the rest of 24328445e2c5SVille Syrjälä * the modes for the next time around. 24338445e2c5SVille Syrjälä */ 24348445e2c5SVille Syrjälä list_for_each_entry_continue(mode, &connector->modes, head) 24358445e2c5SVille Syrjälä mode->expose_to_userspace = false; 24368445e2c5SVille Syrjälä 2437e94ac351SDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 2438e94ac351SDaniel Vetter 243952217195SDaniel Vetter goto out; 244052217195SDaniel Vetter } 244152217195SDaniel Vetter copied++; 244252217195SDaniel Vetter } 24438445e2c5SVille Syrjälä } else { 24448445e2c5SVille Syrjälä /* Clear the tag for the next time around */ 24458445e2c5SVille Syrjälä list_for_each_entry(mode, &connector->modes, head) 24468445e2c5SVille Syrjälä mode->expose_to_userspace = false; 244752217195SDaniel Vetter } 24488445e2c5SVille Syrjälä 244952217195SDaniel Vetter out_resp->count_modes = mode_count; 245052217195SDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 2451e94ac351SDaniel Vetter 2452e94ac351SDaniel Vetter drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 2453e94ac351SDaniel Vetter encoder = drm_connector_get_encoder(connector); 2454e94ac351SDaniel Vetter if (encoder) 2455e94ac351SDaniel Vetter out_resp->encoder_id = encoder->base.id; 2456e94ac351SDaniel Vetter else 2457e94ac351SDaniel Vetter out_resp->encoder_id = 0; 2458e94ac351SDaniel Vetter 2459e94ac351SDaniel Vetter /* Only grab properties after probing, to make sure EDID and other 2460c2ce66daSBeatriz Martins de Carvalho * properties reflect the latest status. 2461c2ce66daSBeatriz Martins de Carvalho */ 2462e94ac351SDaniel Vetter ret = drm_mode_object_get_properties(&connector->base, file_priv->atomic, 2463e94ac351SDaniel Vetter (uint32_t __user *)(unsigned long)(out_resp->props_ptr), 2464e94ac351SDaniel Vetter (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), 2465e94ac351SDaniel Vetter &out_resp->count_props); 2466e94ac351SDaniel Vetter drm_modeset_unlock(&dev->mode_config.connection_mutex); 2467e94ac351SDaniel Vetter 2468e94ac351SDaniel Vetter out: 2469ad093607SThierry Reding drm_connector_put(connector); 247052217195SDaniel Vetter 247152217195SDaniel Vetter return ret; 247252217195SDaniel Vetter } 247352217195SDaniel Vetter 24749498c19bSDaniel Vetter 24759498c19bSDaniel Vetter /** 24769498c19bSDaniel Vetter * DOC: Tile group 24779498c19bSDaniel Vetter * 24789498c19bSDaniel Vetter * Tile groups are used to represent tiled monitors with a unique integer 24799498c19bSDaniel Vetter * identifier. Tiled monitors using DisplayID v1.3 have a unique 8-byte handle, 24809498c19bSDaniel Vetter * we store this in a tile group, so we have a common identifier for all tiles 24819498c19bSDaniel Vetter * in a monitor group. The property is called "TILE". Drivers can manage tile 24829498c19bSDaniel Vetter * groups using drm_mode_create_tile_group(), drm_mode_put_tile_group() and 24839498c19bSDaniel Vetter * drm_mode_get_tile_group(). But this is only needed for internal panels where 24849498c19bSDaniel Vetter * the tile group information is exposed through a non-standard way. 24859498c19bSDaniel Vetter */ 24869498c19bSDaniel Vetter 24879498c19bSDaniel Vetter static void drm_tile_group_free(struct kref *kref) 24889498c19bSDaniel Vetter { 24899498c19bSDaniel Vetter struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); 24909498c19bSDaniel Vetter struct drm_device *dev = tg->dev; 2491948de842SSuraj Upadhyay 24929498c19bSDaniel Vetter mutex_lock(&dev->mode_config.idr_mutex); 24939498c19bSDaniel Vetter idr_remove(&dev->mode_config.tile_idr, tg->id); 24949498c19bSDaniel Vetter mutex_unlock(&dev->mode_config.idr_mutex); 24959498c19bSDaniel Vetter kfree(tg); 24969498c19bSDaniel Vetter } 24979498c19bSDaniel Vetter 24989498c19bSDaniel Vetter /** 24999498c19bSDaniel Vetter * drm_mode_put_tile_group - drop a reference to a tile group. 25009498c19bSDaniel Vetter * @dev: DRM device 25019498c19bSDaniel Vetter * @tg: tile group to drop reference to. 25029498c19bSDaniel Vetter * 25039498c19bSDaniel Vetter * drop reference to tile group and free if 0. 25049498c19bSDaniel Vetter */ 25059498c19bSDaniel Vetter void drm_mode_put_tile_group(struct drm_device *dev, 25069498c19bSDaniel Vetter struct drm_tile_group *tg) 25079498c19bSDaniel Vetter { 25089498c19bSDaniel Vetter kref_put(&tg->refcount, drm_tile_group_free); 25099498c19bSDaniel Vetter } 25109498c19bSDaniel Vetter EXPORT_SYMBOL(drm_mode_put_tile_group); 25119498c19bSDaniel Vetter 25129498c19bSDaniel Vetter /** 25139498c19bSDaniel Vetter * drm_mode_get_tile_group - get a reference to an existing tile group 25149498c19bSDaniel Vetter * @dev: DRM device 25159498c19bSDaniel Vetter * @topology: 8-bytes unique per monitor. 25169498c19bSDaniel Vetter * 25179498c19bSDaniel Vetter * Use the unique bytes to get a reference to an existing tile group. 25189498c19bSDaniel Vetter * 25199498c19bSDaniel Vetter * RETURNS: 25209498c19bSDaniel Vetter * tile group or NULL if not found. 25219498c19bSDaniel Vetter */ 25229498c19bSDaniel Vetter struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, 2523267ea759SVille Syrjälä const char topology[8]) 25249498c19bSDaniel Vetter { 25259498c19bSDaniel Vetter struct drm_tile_group *tg; 25269498c19bSDaniel Vetter int id; 2527948de842SSuraj Upadhyay 25289498c19bSDaniel Vetter mutex_lock(&dev->mode_config.idr_mutex); 25299498c19bSDaniel Vetter idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { 25309498c19bSDaniel Vetter if (!memcmp(tg->group_data, topology, 8)) { 25319498c19bSDaniel Vetter if (!kref_get_unless_zero(&tg->refcount)) 25329498c19bSDaniel Vetter tg = NULL; 25339498c19bSDaniel Vetter mutex_unlock(&dev->mode_config.idr_mutex); 25349498c19bSDaniel Vetter return tg; 25359498c19bSDaniel Vetter } 25369498c19bSDaniel Vetter } 25379498c19bSDaniel Vetter mutex_unlock(&dev->mode_config.idr_mutex); 25389498c19bSDaniel Vetter return NULL; 25399498c19bSDaniel Vetter } 25409498c19bSDaniel Vetter EXPORT_SYMBOL(drm_mode_get_tile_group); 25419498c19bSDaniel Vetter 25429498c19bSDaniel Vetter /** 25439498c19bSDaniel Vetter * drm_mode_create_tile_group - create a tile group from a displayid description 25449498c19bSDaniel Vetter * @dev: DRM device 25459498c19bSDaniel Vetter * @topology: 8-bytes unique per monitor. 25469498c19bSDaniel Vetter * 25479498c19bSDaniel Vetter * Create a tile group for the unique monitor, and get a unique 25489498c19bSDaniel Vetter * identifier for the tile group. 25499498c19bSDaniel Vetter * 25509498c19bSDaniel Vetter * RETURNS: 2551705c8160SDan Carpenter * new tile group or NULL. 25529498c19bSDaniel Vetter */ 25539498c19bSDaniel Vetter struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, 2554267ea759SVille Syrjälä const char topology[8]) 25559498c19bSDaniel Vetter { 25569498c19bSDaniel Vetter struct drm_tile_group *tg; 25579498c19bSDaniel Vetter int ret; 25589498c19bSDaniel Vetter 25599498c19bSDaniel Vetter tg = kzalloc(sizeof(*tg), GFP_KERNEL); 25609498c19bSDaniel Vetter if (!tg) 2561705c8160SDan Carpenter return NULL; 25629498c19bSDaniel Vetter 25639498c19bSDaniel Vetter kref_init(&tg->refcount); 25649498c19bSDaniel Vetter memcpy(tg->group_data, topology, 8); 25659498c19bSDaniel Vetter tg->dev = dev; 25669498c19bSDaniel Vetter 25679498c19bSDaniel Vetter mutex_lock(&dev->mode_config.idr_mutex); 25689498c19bSDaniel Vetter ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); 25699498c19bSDaniel Vetter if (ret >= 0) { 25709498c19bSDaniel Vetter tg->id = ret; 25719498c19bSDaniel Vetter } else { 25729498c19bSDaniel Vetter kfree(tg); 2573705c8160SDan Carpenter tg = NULL; 25749498c19bSDaniel Vetter } 25759498c19bSDaniel Vetter 25769498c19bSDaniel Vetter mutex_unlock(&dev->mode_config.idr_mutex); 25779498c19bSDaniel Vetter return tg; 25789498c19bSDaniel Vetter } 25799498c19bSDaniel Vetter EXPORT_SYMBOL(drm_mode_create_tile_group); 2580