/* $NetBSD: drm_crtc.h,v 1.7.4.1 2020/01/05 09:42:05 martin Exp $ */ /* * Copyright © 2006 Keith Packard * Copyright © 2007-2008 Dave Airlie * Copyright © 2007-2008 Intel Corporation * Jesse Barnes * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #ifndef __DRM_CRTC_H__ #define __DRM_CRTC_H__ #include #include #include #include #include #include #include #include #include #include #include #include #include struct drm_device; struct drm_mode_set; struct drm_framebuffer; struct drm_object_properties; struct drm_file; struct drm_clip_rect; struct device_node; struct fence; #define DRM_MODE_OBJECT_CRTC 0xcccccccc #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0 #define DRM_MODE_OBJECT_MODE 0xdededede #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee #define DRM_MODE_OBJECT_ANY 0 struct drm_mode_object { uint32_t id; uint32_t type; struct drm_object_properties *properties; }; #define DRM_OBJECT_MAX_PROPERTY 24 struct drm_object_properties { int count, atomic_count; /* NOTE: if we ever start dynamically destroying properties (ie. * not at drm_mode_config_cleanup() time), then we'd have to do * a better job of detaching property from mode objects to avoid * dangling property pointers: */ struct drm_property *properties[DRM_OBJECT_MAX_PROPERTY]; /* do not read/write values directly, but use drm_object_property_get_value() * and drm_object_property_set_value(): */ uint64_t values[DRM_OBJECT_MAX_PROPERTY]; }; static inline int64_t U642I64(uint64_t val) { return (int64_t)*((int64_t *)&val); } static inline uint64_t I642U64(int64_t val) { return (uint64_t)*((uint64_t *)&val); } /* rotation property bits */ #define DRM_ROTATE_MASK 0x0f #define DRM_ROTATE_0 0 #define DRM_ROTATE_90 1 #define DRM_ROTATE_180 2 #define DRM_ROTATE_270 3 #define DRM_REFLECT_MASK (~DRM_ROTATE_MASK) #define DRM_REFLECT_X 4 #define DRM_REFLECT_Y 5 enum drm_connector_force { DRM_FORCE_UNSPECIFIED, DRM_FORCE_OFF, DRM_FORCE_ON, /* force on analog part normally */ DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */ }; #include enum drm_connector_status { connector_status_connected = 1, connector_status_disconnected = 2, connector_status_unknown = 3, }; enum subpixel_order { SubPixelUnknown = 0, SubPixelHorizontalRGB, SubPixelHorizontalBGR, SubPixelVerticalRGB, SubPixelVerticalBGR, SubPixelNone, }; #define DRM_COLOR_FORMAT_RGB444 (1<<0) #define DRM_COLOR_FORMAT_YCRCB444 (1<<1) #define DRM_COLOR_FORMAT_YCRCB422 (1<<2) /* * Describes a given display (e.g. CRT or flat panel) and its limitations. */ struct drm_display_info { char name[DRM_DISPLAY_INFO_LEN]; /* Physical size */ unsigned int width_mm; unsigned int height_mm; /* Clock limits FIXME: storage format */ unsigned int min_vfreq, max_vfreq; unsigned int min_hfreq, max_hfreq; unsigned int pixel_clock; unsigned int bpc; enum subpixel_order subpixel_order; u32 color_formats; u32 *bus_formats; unsigned int num_bus_formats; /* Mask of supported hdmi deep color modes */ u8 edid_hdmi_dc_modes; u8 cea_rev; }; /* data corresponds to displayid vend/prod/serial */ struct drm_tile_group { struct kref refcount; struct drm_device *dev; int id; u8 group_data[8]; }; struct drm_framebuffer_funcs { /* note: use drm_framebuffer_remove() */ void (*destroy)(struct drm_framebuffer *framebuffer); int (*create_handle)(struct drm_framebuffer *fb, struct drm_file *file_priv, unsigned int *handle); /* * Optional callback for the dirty fb ioctl. * * Userspace can notify the driver via this callback * that a area of the framebuffer has changed and should * be flushed to the display hardware. * * See documentation in drm_mode.h for the struct * drm_mode_fb_dirty_cmd for more information as all * the semantics and arguments have a one to one mapping * on this function. */ int (*dirty)(struct drm_framebuffer *framebuffer, struct drm_file *file_priv, unsigned flags, unsigned color, struct drm_clip_rect *clips, unsigned num_clips); }; struct drm_framebuffer { struct drm_device *dev; /* * Note that the fb is refcounted for the benefit of driver internals, * for example some hw, disabling a CRTC/plane is asynchronous, and * scanout does not actually complete until the next vblank. So some * cleanup (like releasing the reference(s) on the backing GEM bo(s)) * should be deferred. In cases like this, the driver would like to * hold a ref to the fb even though it has already been removed from * userspace perspective. */ struct kref refcount; /* * Place on the dev->mode_config.fb_list, access protected by * dev->mode_config.fb_lock. */ struct list_head head; struct drm_mode_object base; const struct drm_framebuffer_funcs *funcs; unsigned int pitches[4]; unsigned int offsets[4]; uint64_t modifier[4]; unsigned int width; unsigned int height; /* depth can be 15 or 16 */ unsigned int depth; int bits_per_pixel; int flags; uint32_t pixel_format; /* fourcc format */ struct list_head filp_head; }; struct drm_property_blob { struct drm_mode_object base; struct drm_device *dev; struct kref refcount; struct list_head head_global; struct list_head head_file; size_t length; unsigned char data[]; }; struct drm_property_enum { uint64_t value; struct list_head head; char name[DRM_PROP_NAME_LEN]; }; struct drm_property { struct list_head head; struct drm_mode_object base; uint32_t flags; char name[DRM_PROP_NAME_LEN]; uint32_t num_values; uint64_t *values; struct drm_device *dev; struct list_head enum_list; }; struct drm_crtc; struct drm_connector; struct drm_encoder; struct drm_pending_vblank_event; struct drm_plane; struct drm_bridge; struct drm_atomic_state; /** * struct drm_crtc_state - mutable CRTC state * @crtc: backpointer to the CRTC * @enable: whether the CRTC should be enabled, gates all other state * @active: whether the CRTC is actively displaying (used for DPMS) * @planes_changed: planes on this crtc are updated * @mode_changed: crtc_state->mode or crtc_state->enable has been changed * @active_changed: crtc_state->active has been toggled. * @connectors_changed: connectors to this crtc have been updated * @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes * @last_vblank_count: for helpers and drivers to capture the vblank of the * update to ensure framebuffer cleanup isn't done too early * @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings * @mode: current mode timings * @event: optional pointer to a DRM event to signal upon completion of the * state update * @state: backpointer to global drm_atomic_state * * Note that the distinction between @enable and @active is rather subtile: * Flipping @active while @enable is set without changing anything else may * never return in a failure from the ->atomic_check callback. Userspace assumes * that a DPMS On will always succeed. In other words: @enable controls resource * assignment, @active controls the actual hardware state. */ struct drm_crtc_state { struct drm_crtc *crtc; bool enable; bool active; /* computed state bits used by helpers and drivers */ bool planes_changed : 1; bool mode_changed : 1; bool active_changed : 1; bool connectors_changed : 1; /* attached planes bitmask: * WARNING: transitional helpers do not maintain plane_mask so * drivers not converted over to atomic helpers should not rely * on plane_mask being accurate! */ u32 plane_mask; /* last_vblank_count: for vblank waits before cleanup */ u32 last_vblank_count; /* adjusted_mode: for use by helpers and drivers */ struct drm_display_mode adjusted_mode; struct drm_display_mode mode; /* blob property to expose current mode to atomic userspace */ struct drm_property_blob *mode_blob; struct drm_pending_vblank_event *event; struct drm_atomic_state *state; }; /** * struct drm_crtc_funcs - control CRTCs for a given device * @save: save CRTC state * @restore: restore CRTC state * @reset: reset CRTC after state has been invalidated (e.g. resume) * @cursor_set: setup the cursor * @cursor_set2: setup the cursor with hotspot, superseeds @cursor_set if set * @cursor_move: move the cursor * @gamma_set: specify color ramp for CRTC * @destroy: deinit and free object * @set_property: called when a property is changed * @set_config: apply a new CRTC configuration * @page_flip: initiate a page flip * @atomic_duplicate_state: duplicate the atomic state for this CRTC * @atomic_destroy_state: destroy an atomic state for this CRTC * @atomic_set_property: set a property on an atomic state for this CRTC * (do not call directly, use drm_atomic_crtc_set_property()) * @atomic_get_property: get a property on an atomic state for this CRTC * (do not call directly, use drm_atomic_crtc_get_property()) * * The drm_crtc_funcs structure is the central CRTC management structure * in the DRM. Each CRTC controls one or more connectors (note that the name * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc. * connectors, not just CRTs). * * Each driver is responsible for filling out this structure at startup time, * in addition to providing other modesetting features, like i2c and DDC * bus accessors. */ struct drm_crtc_funcs { /* Save CRTC state */ void (*save)(struct drm_crtc *crtc); /* suspend? */ /* Restore CRTC state */ void (*restore)(struct drm_crtc *crtc); /* resume? */ /* Reset CRTC state */ void (*reset)(struct drm_crtc *crtc); /* cursor controls */ int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv, uint32_t handle, uint32_t width, uint32_t height); int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv, uint32_t handle, uint32_t width, uint32_t height, int32_t hot_x, int32_t hot_y); int (*cursor_move)(struct drm_crtc *crtc, int x, int y); /* Set gamma on the CRTC */ void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b, uint32_t start, uint32_t size); /* Object destroy routine */ void (*destroy)(struct drm_crtc *crtc); int (*set_config)(struct drm_mode_set *set); /* * Flip to the given framebuffer. This implements the page * flip ioctl described in drm_mode.h, specifically, the * implementation must return immediately and block all * rendering to the current fb until the flip has completed. * If userspace set the event flag in the ioctl, the event * argument will point to an event to send back when the flip * completes, otherwise it will be NULL. */ int (*page_flip)(struct drm_crtc *crtc, struct drm_framebuffer *fb, struct drm_pending_vblank_event *event, uint32_t flags); int (*set_property)(struct drm_crtc *crtc, struct drm_property *property, uint64_t val); /* atomic update handling */ struct drm_crtc_state *(*atomic_duplicate_state)(struct drm_crtc *crtc); void (*atomic_destroy_state)(struct drm_crtc *crtc, struct drm_crtc_state *state); int (*atomic_set_property)(struct drm_crtc *crtc, struct drm_crtc_state *state, struct drm_property *property, uint64_t val); int (*atomic_get_property)(struct drm_crtc *crtc, const struct drm_crtc_state *state, struct drm_property *property, uint64_t *val); }; /** * struct drm_crtc - central CRTC control structure * @dev: parent DRM device * @port: OF node used by drm_of_find_possible_crtcs() * @head: list management * @mutex: per-CRTC locking * @base: base KMS object for ID tracking etc. * @primary: primary plane for this CRTC * @cursor: cursor plane for this CRTC * @cursor_x: current x position of the cursor, used for universal cursor planes * @cursor_y: current y position of the cursor, used for universal cursor planes * @enabled: is this CRTC enabled? * @mode: current mode timings * @hwmode: mode timings as programmed to hw regs * @x: x position on screen * @y: y position on screen * @funcs: CRTC control functions * @gamma_size: size of gamma ramp * @gamma_store: gamma ramp values * @helper_private: mid-layer private data * @properties: property tracking for this CRTC * @state: current atomic state for this CRTC * @acquire_ctx: per-CRTC implicit acquire context used by atomic drivers for * legacy ioctls * * Each CRTC may have one or more connectors associated with it. This structure * allows the CRTC to be controlled. */ struct drm_crtc { struct drm_device *dev; struct device_node *port; struct list_head head; /* * crtc mutex * * This provides a read lock for the overall crtc state (mode, dpms * state, ...) and a write lock for everything which can be update * without a full modeset (fb, cursor data, ...) */ struct drm_modeset_lock mutex; struct drm_mode_object base; /* primary and cursor planes for CRTC */ struct drm_plane *primary; struct drm_plane *cursor; /* position of cursor plane on crtc */ int cursor_x; int cursor_y; bool enabled; /* Requested mode from modesetting. */ struct drm_display_mode mode; /* Programmed mode in hw, after adjustments for encoders, * crtc, panel scaling etc. Needed for timestamping etc. */ struct drm_display_mode hwmode; int x, y; const struct drm_crtc_funcs *funcs; /* CRTC gamma size for reporting to userspace */ uint32_t gamma_size; uint16_t *gamma_store; /* if you are using the helper */ const void *helper_private; struct drm_object_properties properties; struct drm_crtc_state *state; /* * For legacy crtc ioctls so that atomic drivers can get at the locking * acquire context. */ struct drm_modeset_acquire_ctx *acquire_ctx; }; /** * struct drm_connector_state - mutable connector state * @connector: backpointer to the connector * @crtc: CRTC to connect connector to, NULL if disabled * @best_encoder: can be used by helpers and drivers to select the encoder * @state: backpointer to global drm_atomic_state */ struct drm_connector_state { struct drm_connector *connector; struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_connector() */ struct drm_encoder *best_encoder; struct drm_atomic_state *state; }; /** * struct drm_connector_funcs - control connectors on a given device * @dpms: set power state * @save: save connector state * @restore: restore connector state * @reset: reset connector after state has been invalidated (e.g. resume) * @detect: is this connector active? * @fill_modes: fill mode list for this connector * @set_property: property for this connector may need an update * @destroy: make object go away * @force: notify the driver that the connector is forced on * @atomic_duplicate_state: duplicate the atomic state for this connector * @atomic_destroy_state: destroy an atomic state for this connector * @atomic_set_property: set a property on an atomic state for this connector * (do not call directly, use drm_atomic_connector_set_property()) * @atomic_get_property: get a property on an atomic state for this connector * (do not call directly, use drm_atomic_connector_get_property()) * * Each CRTC may have one or more connectors attached to it. The functions * below allow the core DRM code to control connectors, enumerate available modes, * etc. */ struct drm_connector_funcs { int (*dpms)(struct drm_connector *connector, int mode); void (*save)(struct drm_connector *connector); void (*restore)(struct drm_connector *connector); void (*reset)(struct drm_connector *connector); /* Check to see if anything is attached to the connector. * @force is set to false whilst polling, true when checking the * connector due to user request. @force can be used by the driver * to avoid expensive, destructive operations during automated * probing. */ enum drm_connector_status (*detect)(struct drm_connector *connector, bool force); int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height); int (*set_property)(struct drm_connector *connector, struct drm_property *property, uint64_t val); void (*destroy)(struct drm_connector *connector); void (*force)(struct drm_connector *connector); /* atomic update handling */ struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector); void (*atomic_destroy_state)(struct drm_connector *connector, struct drm_connector_state *state); int (*atomic_set_property)(struct drm_connector *connector, struct drm_connector_state *state, struct drm_property *property, uint64_t val); int (*atomic_get_property)(struct drm_connector *connector, const struct drm_connector_state *state, struct drm_property *property, uint64_t *val); }; /** * struct drm_encoder_funcs - encoder controls * @reset: reset state (e.g. at init or resume time) * @destroy: cleanup and free associated data * * Encoders sit between CRTCs and connectors. */ struct drm_encoder_funcs { void (*reset)(struct drm_encoder *encoder); void (*destroy)(struct drm_encoder *encoder); }; #define DRM_CONNECTOR_MAX_ENCODER 3 /** * struct drm_encoder - central DRM encoder structure * @dev: parent DRM device * @head: list management * @base: base KMS object * @name: encoder name * @encoder_type: one of the %DRM_MODE_ENCODER_ types in drm_mode.h * @possible_crtcs: bitmask of potential CRTC bindings * @possible_clones: bitmask of potential sibling encoders for cloning * @crtc: currently bound CRTC * @bridge: bridge associated to the encoder * @funcs: control functions * @helper_private: mid-layer private data * * CRTCs drive pixels to encoders, which convert them into signals * appropriate for a given connector or set of connectors. */ struct drm_encoder { struct drm_device *dev; struct list_head head; struct drm_mode_object base; char *name; int encoder_type; uint32_t possible_crtcs; uint32_t possible_clones; struct drm_crtc *crtc; struct drm_bridge *bridge; const struct drm_encoder_funcs *funcs; const void *helper_private; }; /* should we poll this connector for connects and disconnects */ /* hot plug detectable */ #define DRM_CONNECTOR_POLL_HPD (1 << 0) /* poll for connections */ #define DRM_CONNECTOR_POLL_CONNECT (1 << 1) /* can cleanly poll for disconnections without flickering the screen */ /* DACs should rarely do this without a lot of testing */ #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2) #define MAX_ELD_BYTES 128 /** * struct drm_connector - central DRM connector control structure * @dev: parent DRM device * @kdev: kernel device for sysfs attributes * @attr: sysfs attributes * @head: list management * @base: base KMS object * @name: connector name * @connector_type: one of the %DRM_MODE_CONNECTOR_ types from drm_mode.h * @connector_type_id: index into connector type enum * @interlace_allowed: can this connector handle interlaced modes? * @doublescan_allowed: can this connector handle doublescan? * @stereo_allowed: can this connector handle stereo modes? * @modes: modes available on this connector (from fill_modes() + user) * @status: one of the drm_connector_status enums (connected, not, or unknown) * @probed_modes: list of modes derived directly from the display * @display_info: information about attached display (e.g. from EDID) * @funcs: connector control functions * @edid_blob_ptr: DRM property containing EDID if present * @properties: property tracking for this connector * @path_blob_ptr: DRM blob property data for the DP MST path property * @polled: a %DRM_CONNECTOR_POLL_ value for core driven polling * @dpms: current dpms state * @helper_private: mid-layer private data * @cmdline_mode: mode line parsed from the kernel cmdline for this connector * @force: a %DRM_FORCE_ state for forced mode sets * @override_edid: has the EDID been overwritten through debugfs for testing? * @encoder_ids: valid encoders for this connector * @encoder: encoder driving this connector, if any * @physical_address: HDMI physical address * @eld: EDID-like data, if present * @dvi_dual: dual link DVI, if found * @max_tmds_clock: max clock rate, if found * @latency_present: AV delay info from ELD, if found * @video_latency: video latency info from ELD, if found * @audio_latency: audio latency info from ELD, if found * @null_edid_counter: track sinks that give us all zeros for the EDID * @bad_edid_counter: track sinks that give us an EDID with invalid checksum * @edid_corrupt: indicates whether the last read EDID was corrupt * @debugfs_entry: debugfs directory for this connector * @state: current atomic state for this connector * @has_tile: is this connector connected to a tiled monitor * @tile_group: tile group for the connected monitor * @tile_is_single_monitor: whether the tile is one monitor housing * @num_h_tile: number of horizontal tiles in the tile group * @num_v_tile: number of vertical tiles in the tile group * @tile_h_loc: horizontal location of this tile * @tile_v_loc: vertical location of this tile * @tile_h_size: horizontal size of this tile. * @tile_v_size: vertical size of this tile. * * Each connector may be connected to one or more CRTCs, or may be clonable by * another connector if they can share a CRTC. Each connector also has a specific * position in the broader display (referred to as a 'screen' though it could * span multiple monitors). */ struct drm_connector { struct drm_device *dev; struct device *kdev; struct device_attribute *attr; struct list_head head; struct drm_mode_object base; char *name; int connector_type; int connector_type_id; bool interlace_allowed; bool doublescan_allowed; bool stereo_allowed; struct list_head modes; /* list of modes on this connector */ enum drm_connector_status status; /* these are modes added by probing with DDC or the BIOS */ struct list_head probed_modes; struct drm_display_info display_info; const struct drm_connector_funcs *funcs; struct drm_property_blob *edid_blob_ptr; struct drm_object_properties properties; struct drm_property_blob *path_blob_ptr; struct drm_property_blob *tile_blob_ptr; uint8_t polled; /* DRM_CONNECTOR_POLL_* */ /* requested DPMS state */ int dpms; const void *helper_private; /* forced on connector */ struct drm_cmdline_mode cmdline_mode; enum drm_connector_force force; bool override_edid; uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER]; struct drm_encoder *encoder; /* currently active encoder */ /* EDID bits */ uint16_t physical_address; uint8_t eld[MAX_ELD_BYTES]; bool dvi_dual; int max_tmds_clock; /* in MHz */ bool latency_present[2]; int video_latency[2]; /* [0]: progressive, [1]: interlaced */ int audio_latency[2]; int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */ unsigned bad_edid_counter; /* Flag for raw EDID header corruption - used in Displayport * compliance testing - * Displayport Link CTS Core 1.2 rev1.1 4.2.2.6 */ bool edid_corrupt; struct dentry *debugfs_entry; struct drm_connector_state *state; /* DisplayID bits */ bool has_tile; struct drm_tile_group *tile_group; bool tile_is_single_monitor; uint8_t num_h_tile, num_v_tile; uint8_t tile_h_loc, tile_v_loc; uint16_t tile_h_size, tile_v_size; }; /** * struct drm_plane_state - mutable plane state * @plane: backpointer to the plane * @crtc: currently bound CRTC, NULL if disabled * @fb: currently bound framebuffer * @fence: optional fence to wait for before scanning out @fb * @crtc_x: left position of visible portion of plane on crtc * @crtc_y: upper position of visible portion of plane on crtc * @crtc_w: width of visible portion of plane on crtc * @crtc_h: height of visible portion of plane on crtc * @src_x: left position of visible portion of plane within * plane (in 16.16) * @src_y: upper position of visible portion of plane within * plane (in 16.16) * @src_w: width of visible portion of plane (in 16.16) * @src_h: height of visible portion of plane (in 16.16) * @state: backpointer to global drm_atomic_state */ struct drm_plane_state { struct drm_plane *plane; struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_plane() */ struct drm_framebuffer *fb; /* do not write directly, use drm_atomic_set_fb_for_plane() */ struct fence *fence; /* Signed dest location allows it to be partially off screen */ int32_t crtc_x, crtc_y; uint32_t crtc_w, crtc_h; /* Source values are 16.16 fixed point */ uint32_t src_x, src_y; uint32_t src_h, src_w; /* Plane rotation */ unsigned int rotation; struct drm_atomic_state *state; }; /** * struct drm_plane_funcs - driver plane control functions * @update_plane: update the plane configuration * @disable_plane: shut down the plane * @destroy: clean up plane resources * @reset: reset plane after state has been invalidated (e.g. resume) * @set_property: called when a property is changed * @atomic_duplicate_state: duplicate the atomic state for this plane * @atomic_destroy_state: destroy an atomic state for this plane * @atomic_set_property: set a property on an atomic state for this plane * (do not call directly, use drm_atomic_plane_set_property()) * @atomic_get_property: get a property on an atomic state for this plane * (do not call directly, use drm_atomic_plane_get_property()) */ struct drm_plane_funcs { int (*update_plane)(struct drm_plane *plane, struct drm_crtc *crtc, struct drm_framebuffer *fb, int crtc_x, int crtc_y, unsigned int crtc_w, unsigned int crtc_h, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h); int (*disable_plane)(struct drm_plane *plane); void (*destroy)(struct drm_plane *plane); void (*reset)(struct drm_plane *plane); int (*set_property)(struct drm_plane *plane, struct drm_property *property, uint64_t val); /* atomic update handling */ struct drm_plane_state *(*atomic_duplicate_state)(struct drm_plane *plane); void (*atomic_destroy_state)(struct drm_plane *plane, struct drm_plane_state *state); int (*atomic_set_property)(struct drm_plane *plane, struct drm_plane_state *state, struct drm_property *property, uint64_t val); int (*atomic_get_property)(struct drm_plane *plane, const struct drm_plane_state *state, struct drm_property *property, uint64_t *val); }; enum drm_plane_type { DRM_PLANE_TYPE_OVERLAY, DRM_PLANE_TYPE_PRIMARY, DRM_PLANE_TYPE_CURSOR, }; /** * struct drm_plane - central DRM plane control structure * @dev: DRM device this plane belongs to * @head: for list management * @base: base mode object * @possible_crtcs: pipes this plane can be bound to * @format_types: array of formats supported by this plane * @format_count: number of formats supported * @format_default: driver hasn't supplied supported formats for the plane * @crtc: currently bound CRTC * @fb: currently bound fb * @old_fb: Temporary tracking of the old fb while a modeset is ongoing. Used by * drm_mode_set_config_internal() to implement correct refcounting. * @funcs: helper functions * @properties: property tracking for this plane * @type: type of plane (overlay, primary, cursor) * @state: current atomic state for this plane */ struct drm_plane { struct drm_device *dev; struct list_head head; struct drm_modeset_lock mutex; struct drm_mode_object base; uint32_t possible_crtcs; uint32_t *format_types; unsigned int format_count; bool format_default; struct drm_crtc *crtc; struct drm_framebuffer *fb; struct drm_framebuffer *old_fb; const struct drm_plane_funcs *funcs; struct drm_object_properties properties; enum drm_plane_type type; const void *helper_private; struct drm_plane_state *state; }; /** * struct drm_bridge_funcs - drm_bridge control functions * @attach: Called during drm_bridge_attach * @mode_fixup: Try to fixup (or reject entirely) proposed mode for this bridge * @disable: Called right before encoder prepare, disables the bridge * @post_disable: Called right after encoder prepare, for lockstepped disable * @mode_set: Set this mode to the bridge * @pre_enable: Called right before encoder commit, for lockstepped commit * @enable: Called right after encoder commit, enables the bridge */ struct drm_bridge_funcs { int (*attach)(struct drm_bridge *bridge); bool (*mode_fixup)(struct drm_bridge *bridge, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode); void (*disable)(struct drm_bridge *bridge); void (*post_disable)(struct drm_bridge *bridge); void (*mode_set)(struct drm_bridge *bridge, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode); void (*pre_enable)(struct drm_bridge *bridge); void (*enable)(struct drm_bridge *bridge); }; /** * struct drm_bridge - central DRM bridge control structure * @dev: DRM device this bridge belongs to * @encoder: encoder to which this bridge is connected * @next: the next bridge in the encoder chain * @of_node: device node pointer to the bridge * @list: to keep track of all added bridges * @funcs: control functions * @driver_private: pointer to the bridge driver's internal context */ struct drm_bridge { struct drm_device *dev; struct drm_encoder *encoder; struct drm_bridge *next; #ifdef CONFIG_OF struct device_node *of_node; #endif struct list_head list; const struct drm_bridge_funcs *funcs; void *driver_private; }; /** * struct drm_atomic_state - the global state object for atomic updates * @dev: parent DRM device * @allow_modeset: allow full modeset * @legacy_cursor_update: hint to enforce legacy cursor ioctl semantics * @planes: pointer to array of plane pointers * @plane_states: pointer to array of plane states pointers * @crtcs: pointer to array of CRTC pointers * @crtc_states: pointer to array of CRTC states pointers * @num_connector: size of the @connectors and @connector_states arrays * @connectors: pointer to array of connector pointers * @connector_states: pointer to array of connector states pointers * @acquire_ctx: acquire context for this atomic modeset state update */ struct drm_atomic_state { struct drm_device *dev; bool allow_modeset : 1; bool legacy_cursor_update : 1; struct drm_plane **planes; struct drm_plane_state **plane_states; struct drm_crtc **crtcs; struct drm_crtc_state **crtc_states; int num_connector; struct drm_connector **connectors; struct drm_connector_state **connector_states; struct drm_modeset_acquire_ctx *acquire_ctx; }; /** * struct drm_mode_set - new values for a CRTC config change * @fb: framebuffer to use for new config * @crtc: CRTC whose configuration we're about to change * @mode: mode timings to use * @x: position of this CRTC relative to @fb * @y: position of this CRTC relative to @fb * @connectors: array of connectors to drive with this CRTC if possible * @num_connectors: size of @connectors array * * Represents a single crtc the connectors that it drives with what mode * and from which framebuffer it scans out from. * * This is used to set modes. */ struct drm_mode_set { struct drm_framebuffer *fb; struct drm_crtc *crtc; struct drm_display_mode *mode; uint32_t x; uint32_t y; struct drm_connector **connectors; size_t num_connectors; }; /** * struct drm_mode_config_funcs - basic driver provided mode setting functions * @fb_create: create a new framebuffer object * @output_poll_changed: function to handle output configuration changes * @atomic_check: check whether a given atomic state update is possible * @atomic_commit: commit an atomic state update previously verified with * atomic_check() * @atomic_state_alloc: allocate a new atomic state * @atomic_state_clear: clear the atomic state * @atomic_state_free: free the atomic state * * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that * involve drivers. */ struct drm_mode_config_funcs { struct drm_framebuffer *(*fb_create)(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd); void (*output_poll_changed)(struct drm_device *dev); int (*atomic_check)(struct drm_device *dev, struct drm_atomic_state *a); int (*atomic_commit)(struct drm_device *dev, struct drm_atomic_state *a, bool async); struct drm_atomic_state *(*atomic_state_alloc)(struct drm_device *dev); void (*atomic_state_clear)(struct drm_atomic_state *state); void (*atomic_state_free)(struct drm_atomic_state *state); }; /** * struct drm_mode_config - Mode configuration control structure * @mutex: mutex protecting KMS related lists and structures * @connection_mutex: ww mutex protecting connector state and routing * @acquire_ctx: global implicit acquire context used by atomic drivers for * legacy ioctls * @idr_mutex: mutex for KMS ID allocation and management * @crtc_idr: main KMS ID tracking object * @fb_lock: mutex to protect fb state and lists * @num_fb: number of fbs available * @fb_list: list of framebuffers available * @num_connector: number of connectors on this device * @connector_list: list of connector objects * @num_encoder: number of encoders on this device * @encoder_list: list of encoder objects * @num_overlay_plane: number of overlay planes on this device * @num_total_plane: number of universal (i.e. with primary/curso) planes on this device * @plane_list: list of plane objects * @num_crtc: number of CRTCs on this device * @crtc_list: list of CRTC objects * @property_list: list of property objects * @min_width: minimum pixel width on this device * @min_height: minimum pixel height on this device * @max_width: maximum pixel width on this device * @max_height: maximum pixel height on this device * @funcs: core driver provided mode setting functions * @fb_base: base address of the framebuffer * @poll_enabled: track polling support for this device * @poll_running: track polling status for this device * @output_poll_work: delayed work for polling in process context * @property_blob_list: list of all the blob property objects * @blob_lock: mutex for blob property allocation and management * @*_property: core property tracking * @preferred_depth: preferred RBG pixel depth, used by fb helpers * @prefer_shadow: hint to userspace to prefer shadow-fb rendering * @async_page_flip: does this device support async flips on the primary plane? * @cursor_width: hint to userspace for max cursor width * @cursor_height: hint to userspace for max cursor height * * Core mode resource tracking structure. All CRTC, encoders, and connectors * enumerated by the driver are added here, as are global properties. Some * global restrictions are also here, e.g. dimension restrictions. */ struct drm_mode_config { struct mutex mutex; /* protects configuration (mode lists etc.) */ struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */ struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */ struct mutex idr_mutex; /* for IDR management */ struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */ struct idr tile_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */ /* this is limited to one for now */ struct mutex fb_lock; /* proctects global and per-file fb lists */ int num_fb; struct list_head fb_list; int num_connector; struct list_head connector_list; int num_encoder; struct list_head encoder_list; /* * Track # of overlay planes separately from # of total planes. By * default we only advertise overlay planes to userspace; if userspace * sets the "universal plane" capability bit, we'll go ahead and * expose all planes. */ int num_overlay_plane; int num_total_plane; struct list_head plane_list; int num_crtc; struct list_head crtc_list; struct list_head property_list; int min_width, min_height; int max_width, max_height; const struct drm_mode_config_funcs *funcs; resource_size_t fb_base; /* output poll support */ bool poll_enabled; bool poll_running; bool delayed_event; struct delayed_work output_poll_work; struct mutex blob_lock; /* pointers to standard properties */ struct list_head property_blob_list; struct drm_property *edid_property; struct drm_property *dpms_property; struct drm_property *path_property; struct drm_property *tile_property; struct drm_property *plane_type_property; struct drm_property *rotation_property; struct drm_property *prop_src_x; struct drm_property *prop_src_y; struct drm_property *prop_src_w; struct drm_property *prop_src_h; struct drm_property *prop_crtc_x; struct drm_property *prop_crtc_y; struct drm_property *prop_crtc_w; struct drm_property *prop_crtc_h; struct drm_property *prop_fb_id; struct drm_property *prop_crtc_id; struct drm_property *prop_active; struct drm_property *prop_mode_id; /* DVI-I properties */ struct drm_property *dvi_i_subconnector_property; struct drm_property *dvi_i_select_subconnector_property; /* TV properties */ struct drm_property *tv_subconnector_property; struct drm_property *tv_select_subconnector_property; struct drm_property *tv_mode_property; struct drm_property *tv_left_margin_property; struct drm_property *tv_right_margin_property; struct drm_property *tv_top_margin_property; struct drm_property *tv_bottom_margin_property; struct drm_property *tv_brightness_property; struct drm_property *tv_contrast_property; struct drm_property *tv_flicker_reduction_property; struct drm_property *tv_overscan_property; struct drm_property *tv_saturation_property; struct drm_property *tv_hue_property; /* Optional properties */ struct drm_property *scaling_mode_property; struct drm_property *aspect_ratio_property; struct drm_property *dirty_info_property; /* properties for virtual machine layout */ struct drm_property *suggested_x_property; struct drm_property *suggested_y_property; /* dumb ioctl parameters */ uint32_t preferred_depth, prefer_shadow; /* whether async page flip is supported or not */ bool async_page_flip; /* whether the driver supports fb modifiers */ bool allow_fb_modifiers; /* cursor size */ uint32_t cursor_width, cursor_height; }; /** * drm_for_each_plane_mask - iterate over planes specified by bitmask * @plane: the loop cursor * @dev: the DRM device * @plane_mask: bitmask of plane indices * * Iterate over all planes specified by bitmask. */ #define drm_for_each_plane_mask(plane, dev, plane_mask) \ list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \ if ((plane_mask) & (1 << drm_plane_index(plane))) #define obj_to_crtc(x) container_of(x, struct drm_crtc, base) #define obj_to_connector(x) container_of(x, struct drm_connector, base) #define obj_to_encoder(x) container_of(x, struct drm_encoder, base) #define obj_to_mode(x) container_of(x, struct drm_display_mode, base) #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base) #define obj_to_property(x) container_of(x, struct drm_property, base) #define obj_to_blob(x) container_of(x, struct drm_property_blob, base) #define obj_to_plane(x) container_of(x, struct drm_plane, base) struct drm_prop_enum_list { int type; const char *name; }; extern int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, struct drm_plane *primary, struct drm_plane *cursor, const struct drm_crtc_funcs *funcs); extern void drm_crtc_cleanup(struct drm_crtc *crtc); extern unsigned int drm_crtc_index(struct drm_crtc *crtc); /** * drm_crtc_mask - find the mask of a registered CRTC * @crtc: CRTC to find mask for * * Given a registered CRTC, return the mask bit of that CRTC for an * encoder's possible_crtcs field. */ static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc) { return 1 << drm_crtc_index(crtc); } extern void drm_connector_ida_init(void); extern void drm_connector_ida_destroy(void); extern int drm_connector_init(struct drm_device *dev, struct drm_connector *connector, const struct drm_connector_funcs *funcs, int connector_type); int drm_connector_register(struct drm_connector *connector); void drm_connector_unregister(struct drm_connector *connector); extern void drm_connector_cleanup(struct drm_connector *connector); extern unsigned int drm_connector_index(struct drm_connector *connector); /* helper to unplug all connectors from sysfs for device */ extern void drm_connector_unplug_all(struct drm_device *dev); #ifdef __NetBSD__ extern void drm_bridge_init_lock(void); extern void drm_bridge_fini_lock(void); #endif extern int drm_bridge_add(struct drm_bridge *bridge); extern void drm_bridge_remove(struct drm_bridge *bridge); extern struct drm_bridge *of_drm_find_bridge(struct device_node *np); extern int drm_bridge_attach(struct drm_device *dev, struct drm_bridge *bridge); bool drm_bridge_mode_fixup(struct drm_bridge *bridge, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode); void drm_bridge_disable(struct drm_bridge *bridge); void drm_bridge_post_disable(struct drm_bridge *bridge); void drm_bridge_mode_set(struct drm_bridge *bridge, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode); void drm_bridge_pre_enable(struct drm_bridge *bridge); void drm_bridge_enable(struct drm_bridge *bridge); extern int drm_encoder_init(struct drm_device *dev, struct drm_encoder *encoder, const struct drm_encoder_funcs *funcs, int encoder_type); /** * drm_encoder_crtc_ok - can a given crtc drive a given encoder? * @encoder: encoder to test * @crtc: crtc to test * * Return false if @encoder can't be driven by @crtc, true otherwise. */ static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder, struct drm_crtc *crtc) { return !!(encoder->possible_crtcs & drm_crtc_mask(crtc)); } extern int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, unsigned long possible_crtcs, const struct drm_plane_funcs *funcs, const uint32_t *formats, unsigned int format_count, enum drm_plane_type type); extern int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, unsigned long possible_crtcs, const struct drm_plane_funcs *funcs, const uint32_t *formats, unsigned int format_count, bool is_primary); extern void drm_plane_cleanup(struct drm_plane *plane); extern unsigned int drm_plane_index(struct drm_plane *plane); extern struct drm_plane * drm_plane_from_index(struct drm_device *dev, int idx); extern void drm_plane_force_disable(struct drm_plane *plane); extern int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format); extern void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, int *hdisplay, int *vdisplay); extern int drm_crtc_check_viewport(const struct drm_crtc *crtc, int x, int y, const struct drm_display_mode *mode, const struct drm_framebuffer *fb); extern void drm_encoder_cleanup(struct drm_encoder *encoder); extern const char *drm_get_connector_status_name(enum drm_connector_status status); extern const char *drm_get_subpixel_order_name(enum subpixel_order order); extern const char *drm_get_dpms_name(int val); extern const char *drm_get_dvi_i_subconnector_name(int val); extern const char *drm_get_dvi_i_select_name(int val); extern const char *drm_get_tv_subconnector_name(int val); extern const char *drm_get_tv_select_name(int val); extern void drm_fb_release(struct drm_file *file_priv); extern void drm_property_destroy_user_blobs(struct drm_device *dev, struct drm_file *file_priv); extern bool drm_probe_ddc(struct i2c_adapter *adapter); extern struct edid *drm_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter); extern struct edid *drm_edid_duplicate(const struct edid *edid); extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid); extern void drm_mode_config_init(struct drm_device *dev); extern void drm_mode_config_reset(struct drm_device *dev); extern void drm_mode_config_cleanup(struct drm_device *dev); extern int drm_mode_connector_set_path_property(struct drm_connector *connector, const char *path); int drm_mode_connector_set_tile_property(struct drm_connector *connector); extern int drm_mode_connector_update_edid_property(struct drm_connector *connector, const struct edid *edid); extern int drm_display_info_set_bus_formats(struct drm_display_info *info, const u32 *formats, unsigned int num_formats); static inline bool drm_property_type_is(struct drm_property *property, uint32_t type) { /* instanceof for props.. handles extended type vs original types: */ if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) return (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) == type; return property->flags & type; } static inline bool drm_property_type_valid(struct drm_property *property) { if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) return !(property->flags & DRM_MODE_PROP_LEGACY_TYPE); return !!(property->flags & DRM_MODE_PROP_LEGACY_TYPE); } extern int drm_object_property_set_value(struct drm_mode_object *obj, struct drm_property *property, uint64_t val); extern int drm_object_property_get_value(struct drm_mode_object *obj, struct drm_property *property, uint64_t *value); extern int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, const struct drm_framebuffer_funcs *funcs); extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, uint32_t id); extern void drm_framebuffer_unreference(struct drm_framebuffer *fb); extern void drm_framebuffer_reference(struct drm_framebuffer *fb); extern void drm_framebuffer_remove(struct drm_framebuffer *fb); extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb); extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb); extern void drm_object_attach_property(struct drm_mode_object *obj, struct drm_property *property, uint64_t init_val); extern struct drm_property *drm_property_create(struct drm_device *dev, int flags, const char *name, int num_values); extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, const char *name, const struct drm_prop_enum_list *props, int num_values); struct drm_property *drm_property_create_bitmask(struct drm_device *dev, int flags, const char *name, const struct drm_prop_enum_list *props, int num_props, uint64_t supported_bits); struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, const char *name, uint64_t min, uint64_t max); struct drm_property *drm_property_create_signed_range(struct drm_device *dev, int flags, const char *name, int64_t min, int64_t max); struct drm_property *drm_property_create_object(struct drm_device *dev, int flags, const char *name, uint32_t type); struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, const char *name); struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, size_t length, const void *data); struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, uint32_t id); struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob); void drm_property_unreference_blob(struct drm_property_blob *blob); extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property); extern int drm_property_add_enum(struct drm_property *property, int index, uint64_t value, const char *name); extern int drm_mode_create_dvi_i_properties(struct drm_device *dev); extern int drm_mode_create_tv_properties(struct drm_device *dev, unsigned int num_modes, const char * const modes[]); extern int drm_mode_create_scaling_mode_property(struct drm_device *dev); extern int drm_mode_create_aspect_ratio_property(struct drm_device *dev); extern int drm_mode_create_dirty_info_property(struct drm_device *dev); extern int drm_mode_create_suggested_offset_properties(struct drm_device *dev); extern bool drm_property_change_valid_get(struct drm_property *property, uint64_t value, struct drm_mode_object **ref); extern void drm_property_change_valid_put(struct drm_property *property, struct drm_mode_object *ref); extern int drm_mode_connector_attach_encoder(struct drm_connector *connector, struct drm_encoder *encoder); extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, int gamma_size); extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type); /* IOCTLs */ extern int drm_mode_getresources(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_getplane_res(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_getcrtc(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_getconnector(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_set_config_internal(struct drm_mode_set *set); extern int drm_mode_setcrtc(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_getplane(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_setplane(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_cursor_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_cursor2_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_addfb(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_addfb2(struct drm_device *dev, void *data, struct drm_file *file_priv); extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth); extern int drm_mode_rmfb(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_getfb(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_getproperty_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_getblob_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_createblob_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_destroyblob_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_getencoder(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_gamma_get_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_gamma_set_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match); extern enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code); extern bool drm_detect_hdmi_monitor(struct edid *edid); extern bool drm_detect_monitor_audio(struct edid *edid); extern bool drm_rgb_quant_range_selectable(struct edid *edid); extern int drm_mode_page_flip_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_add_modes_noedid(struct drm_connector *connector, int hdisplay, int vdisplay); extern void drm_set_preferred_mode(struct drm_connector *connector, int hpref, int vpref); extern int drm_edid_header_is_valid(const u8 *raw_edid); extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid, bool *edid_corrupt); extern bool drm_edid_is_valid(struct edid *edid); extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, char topology[8]); extern struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, char topology[8]); extern void drm_mode_put_tile_group(struct drm_device *dev, struct drm_tile_group *tg); struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev, int hsize, int vsize, int fresh, bool rb); extern int drm_mode_create_dumb_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_plane_set_obj_prop(struct drm_plane *plane, struct drm_property *property, uint64_t value); extern int drm_mode_atomic_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, int *bpp); extern int drm_format_num_planes(uint32_t format); extern int drm_format_plane_cpp(uint32_t format, int plane); extern int drm_format_horz_chroma_subsampling(uint32_t format); extern int drm_format_vert_chroma_subsampling(uint32_t format); extern const char *drm_get_format_name(uint32_t format); extern struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, unsigned int supported_rotations); extern unsigned int drm_rotation_simplify(unsigned int rotation, unsigned int supported_rotations); /* Helpers */ static inline struct drm_plane *drm_plane_find(struct drm_device *dev, uint32_t id) { struct drm_mode_object *mo; mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PLANE); return mo ? obj_to_plane(mo) : NULL; } static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev, uint32_t id) { struct drm_mode_object *mo; mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CRTC); return mo ? obj_to_crtc(mo) : NULL; } static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev, uint32_t id) { struct drm_mode_object *mo; mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER); return mo ? obj_to_encoder(mo) : NULL; } static inline struct drm_connector *drm_connector_find(struct drm_device *dev, uint32_t id) { struct drm_mode_object *mo; mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CONNECTOR); return mo ? obj_to_connector(mo) : NULL; } static inline struct drm_property *drm_property_find(struct drm_device *dev, uint32_t id) { struct drm_mode_object *mo; mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PROPERTY); return mo ? obj_to_property(mo) : NULL; } /* Plane list iterator for legacy (overlay only) planes. */ #define drm_for_each_legacy_plane(plane, dev) \ list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) \ if (plane->type == DRM_PLANE_TYPE_OVERLAY) #define drm_for_each_plane(plane, dev) \ list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) #define drm_for_each_crtc(crtc, dev) \ list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head) static inline void assert_drm_connector_list_read_locked(struct drm_mode_config *mode_config) { /* * The connector hotadd/remove code currently grabs both locks when * updating lists. Hence readers need only hold either of them to be * safe and the check amounts to * * WARN_ON(not_holding(A) && not_holding(B)). */ WARN_ON(!mutex_is_locked(&mode_config->mutex) && !drm_modeset_is_locked(&mode_config->connection_mutex)); } #define drm_for_each_connector(connector, dev) \ for (assert_drm_connector_list_read_locked(&(dev)->mode_config), \ connector = list_first_entry(&(dev)->mode_config.connector_list, \ struct drm_connector, head); \ &connector->head != (&(dev)->mode_config.connector_list); \ connector = list_next_entry(connector, head)) #define drm_for_each_encoder(encoder, dev) \ list_for_each_entry(encoder, &(dev)->mode_config.encoder_list, head) #define drm_for_each_fb(fb, dev) \ for (WARN_ON(!mutex_is_locked(&(dev)->mode_config.fb_lock)), \ fb = list_first_entry(&(dev)->mode_config.fb_list, \ struct drm_framebuffer, head); \ &fb->head != (&(dev)->mode_config.fb_list); \ fb = list_next_entry(fb, head)) #endif /* __DRM_CRTC_H__ */