/* * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> * Copyright (c) 2007 Jakob Bornecrantz <wallbraker@gmail.com> * Copyright (c) 2008 Red Hat Inc. * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA * Copyright (c) 2007-2008 Intel Corporation * * 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 * AUTHORS OR COPYRIGHT HOLDERS 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_MODE_H #define _DRM_MODE_H
#include"drm.h"
#ifdefined(__cplusplus) extern"C" { #endif
/** * DOC: overview * * DRM exposes many UAPI and structure definitions to have a consistent * and standardized interface with users. * Userspace can refer to these structure definitions and UAPI formats * to communicate to drivers.
*/
/* Link Status options */ #define DRM_MODE_LINK_STATUS_GOOD 0 #define DRM_MODE_LINK_STATUS_BAD 1
/* * DRM_MODE_ROTATE_<degrees> * * Signals that a drm plane is been rotated <degrees> degrees in counter * clockwise direction. * * This define is provided as a convenience, looking up the property id * using the name->prop id lookup is the preferred method.
*/ #define DRM_MODE_ROTATE_0 (1<<0) #define DRM_MODE_ROTATE_90 (1<<1) #define DRM_MODE_ROTATE_180 (1<<2) #define DRM_MODE_ROTATE_270 (1<<3)
/* * DRM_MODE_ROTATE_MASK * * Bitmask used to look for drm plane rotations.
*/ #define DRM_MODE_ROTATE_MASK (\
DRM_MODE_ROTATE_0 | \
DRM_MODE_ROTATE_90 | \
DRM_MODE_ROTATE_180 | \
DRM_MODE_ROTATE_270)
/* * DRM_MODE_REFLECT_<axis> * * Signals that the contents of a drm plane is reflected along the <axis> axis, * in the same way as mirroring. * See kerneldoc chapter "Plane Composition Properties" for more details. * * This define is provided as a convenience, looking up the property id * using the name->prop id lookup is the preferred method.
*/ #define DRM_MODE_REFLECT_X (1<<4) #define DRM_MODE_REFLECT_Y (1<<5)
/* * DRM_MODE_REFLECT_MASK * * Bitmask used to look for drm plane reflections.
*/ #define DRM_MODE_REFLECT_MASK (\
DRM_MODE_REFLECT_X | \
DRM_MODE_REFLECT_Y)
/* Planes blend with or override other bits on the CRTC */ struct drm_mode_set_plane {
__u32 plane_id;
__u32 crtc_id;
__u32 fb_id; /* fb object contains surface format type */
__u32 flags; /* see above flags */
/* Signed dest location allows it to be partially off screen */
__s32 crtc_x;
__s32 crtc_y;
__u32 crtc_w;
__u32 crtc_h;
/* Source values are 16.16 fixed point */
__u32 src_x;
__u32 src_y;
__u32 src_h;
__u32 src_w;
};
/** * struct drm_mode_get_plane - Get plane metadata. * * Userspace can perform a GETPLANE ioctl to retrieve information about a * plane. * * To retrieve the number of formats supported, set @count_format_types to zero * and call the ioctl. @count_format_types will be updated with the value. * * To retrieve these formats, allocate an array with the memory needed to store * @count_format_types formats. Point @format_type_ptr to this array and call * the ioctl again (with @count_format_types still set to the value returned in * the first ioctl call).
*/ struct drm_mode_get_plane { /** * @plane_id: Object ID of the plane whose information should be * retrieved. Set by caller.
*/
__u32 plane_id;
/** @crtc_id: Object ID of the current CRTC. */
__u32 crtc_id; /** @fb_id: Object ID of the current fb. */
__u32 fb_id;
/** * @possible_crtcs: Bitmask of CRTC's compatible with the plane. CRTC's * are created and they receive an index, which corresponds to their * position in the bitmask. Bit N corresponds to * :ref:`CRTC index<crtc_index>` N.
*/
__u32 possible_crtcs; /** @gamma_size: Never used. */
__u32 gamma_size;
/** @count_format_types: Number of formats. */
__u32 count_format_types; /** * @format_type_ptr: Pointer to ``__u32`` array of formats that are * supported by the plane. These formats do not require modifiers.
*/
__u64 format_type_ptr;
};
/** * struct drm_mode_get_connector - Get connector metadata. * * User-space can perform a GETCONNECTOR ioctl to retrieve information about a * connector. User-space is expected to retrieve encoders, modes and properties * by performing this ioctl at least twice: the first time to retrieve the * number of elements, the second time to retrieve the elements themselves. * * To retrieve the number of elements, set @count_props and @count_encoders to * zero, set @count_modes to 1, and set @modes_ptr to a temporary struct * drm_mode_modeinfo element. * * To retrieve the elements, allocate arrays for @encoders_ptr, @modes_ptr, * @props_ptr and @prop_values_ptr, then set @count_modes, @count_props and * @count_encoders to their capacity. * * Performing the ioctl only twice may be racy: the number of elements may have * changed with a hotplug event in-between the two ioctls. User-space is * expected to retry the last ioctl until the number of elements stabilizes. * The kernel won't fill any array which doesn't have the expected length. * * **Force-probing a connector** * * If the @count_modes field is set to zero and the DRM client is the current * DRM master, the kernel will perform a forced probe on the connector to * refresh the connector status, modes and EDID. A forced-probe can be slow, * might cause flickering and the ioctl will block. * * User-space needs to force-probe connectors to ensure their metadata is * up-to-date at startup and after receiving a hot-plug event. User-space * may perform a forced-probe when the user explicitly requests it. User-space * shouldn't perform a forced-probe in other situations.
*/ struct drm_mode_get_connector { /** @encoders_ptr: Pointer to ``__u32`` array of object IDs. */
__u64 encoders_ptr; /** @modes_ptr: Pointer to struct drm_mode_modeinfo array. */
__u64 modes_ptr; /** @props_ptr: Pointer to ``__u32`` array of property IDs. */
__u64 props_ptr; /** @prop_values_ptr: Pointer to ``__u64`` array of property values. */
__u64 prop_values_ptr;
/** @count_modes: Number of modes. */
__u32 count_modes; /** @count_props: Number of properties. */
__u32 count_props; /** @count_encoders: Number of encoders. */
__u32 count_encoders;
/** @encoder_id: Object ID of the current encoder. */
__u32 encoder_id; /** @connector_id: Object ID of the connector. */
__u32 connector_id; /** * @connector_type: Type of the connector. * * See DRM_MODE_CONNECTOR_* defines.
*/
__u32 connector_type; /** * @connector_type_id: Type-specific connector number. * * This is not an object ID. This is a per-type connector number. Each * (type, type_id) combination is unique across all connectors of a DRM * device. * * The (type, type_id) combination is not a stable identifier: the * type_id can change depending on the driver probe order.
*/
__u32 connector_type_id;
/** * @connection: Status of the connector. * * See enum drm_connector_status.
*/
__u32 connection; /** @mm_width: Width of the connected sink in millimeters. */
__u32 mm_width; /** @mm_height: Height of the connected sink in millimeters. */
__u32 mm_height; /** * @subpixel: Subpixel order of the connected sink. * * See enum subpixel_order.
*/
__u32 subpixel;
/** @pad: Padding, must be zero. */
__u32 pad;
};
#define DRM_MODE_PROP_PENDING (1<<0) /* deprecated, do not use */ #define DRM_MODE_PROP_RANGE (1<<1) #define DRM_MODE_PROP_IMMUTABLE (1<<2) #define DRM_MODE_PROP_ENUM (1<<3) /* enumerated type with text strings */ #define DRM_MODE_PROP_BLOB (1<<4) #define DRM_MODE_PROP_BITMASK (1<<5) /* bitmask of enumerated types */
/* non-extended types: legacy bitmask, one bit per type: */ #define DRM_MODE_PROP_LEGACY_TYPE ( \
DRM_MODE_PROP_RANGE | \
DRM_MODE_PROP_ENUM | \
DRM_MODE_PROP_BLOB | \
DRM_MODE_PROP_BITMASK)
/* extended-types: rather than continue to consume a bit per type, * grab a chunk of the bits to use as integer type id.
*/ #define DRM_MODE_PROP_EXTENDED_TYPE 0x0000ffc0 #define DRM_MODE_PROP_TYPE(n) ((n) << 6) #define DRM_MODE_PROP_OBJECT DRM_MODE_PROP_TYPE(1) #define DRM_MODE_PROP_SIGNED_RANGE DRM_MODE_PROP_TYPE(2)
/* the PROP_ATOMIC flag is used to hide properties from userspace that * is not aware of atomic properties. This is mostly to work around * older userspace (DDX drivers) that read/write each prop they find, * without being aware that this could be triggering a lengthy modeset.
*/ #define DRM_MODE_PROP_ATOMIC 0x80000000
/** * struct drm_mode_property_enum - Description for an enum/bitfield entry. * @value: numeric value for this enum entry. * @name: symbolic name for this enum entry. * * See struct drm_property_enum for details.
*/ struct drm_mode_property_enum {
__u64 value; char name[DRM_PROP_NAME_LEN];
};
/** * struct drm_mode_get_property - Get property metadata. * * User-space can perform a GETPROPERTY ioctl to retrieve information about a * property. The same property may be attached to multiple objects, see * "Modeset Base Object Abstraction". * * The meaning of the @values_ptr field changes depending on the property type. * See &drm_property.flags for more details. * * The @enum_blob_ptr and @count_enum_blobs fields are only meaningful when the * property has the type &DRM_MODE_PROP_ENUM or &DRM_MODE_PROP_BITMASK. For * backwards compatibility, the kernel will always set @count_enum_blobs to * zero when the property has the type &DRM_MODE_PROP_BLOB. User-space must * ignore these two fields if the property has a different type. * * User-space is expected to retrieve values and enums by performing this ioctl * at least twice: the first time to retrieve the number of elements, the * second time to retrieve the elements themselves. * * To retrieve the number of elements, set @count_values and @count_enum_blobs * to zero, then call the ioctl. @count_values will be updated with the number * of elements. If the property has the type &DRM_MODE_PROP_ENUM or * &DRM_MODE_PROP_BITMASK, @count_enum_blobs will be updated as well. * * To retrieve the elements themselves, allocate an array for @values_ptr and * set @count_values to its capacity. If the property has the type * &DRM_MODE_PROP_ENUM or &DRM_MODE_PROP_BITMASK, allocate an array for * @enum_blob_ptr and set @count_enum_blobs to its capacity. Calling the ioctl * again will fill the arrays.
*/ struct drm_mode_get_property { /** @values_ptr: Pointer to a ``__u64`` array. */
__u64 values_ptr; /** @enum_blob_ptr: Pointer to a struct drm_mode_property_enum array. */
__u64 enum_blob_ptr;
/** * @prop_id: Object ID of the property which should be retrieved. Set * by the caller.
*/
__u32 prop_id; /** * @flags: ``DRM_MODE_PROP_*`` bitfield. See &drm_property.flags for * a definition of the flags.
*/
__u32 flags; /** * @name: Symbolic property name. User-space should use this field to * recognize properties.
*/ char name[DRM_PROP_NAME_LEN];
/** @count_values: Number of elements in @values_ptr. */
__u32 count_values; /** @count_enum_blobs: Number of elements in @enum_blob_ptr. */
__u32 count_enum_blobs;
};
/** * struct drm_mode_fb_cmd2 - Frame-buffer metadata. * * This struct holds frame-buffer metadata. There are two ways to use it: * * - User-space can fill this struct and perform a &DRM_IOCTL_MODE_ADDFB2 * ioctl to register a new frame-buffer. The new frame-buffer object ID will * be set by the kernel in @fb_id. * - User-space can set @fb_id and perform a &DRM_IOCTL_MODE_GETFB2 ioctl to * fetch metadata about an existing frame-buffer. * * In case of planar formats, this struct allows up to 4 buffer objects with * offsets and pitches per plane. The pitch and offset order are dictated by * the format FourCC as defined by ``drm_fourcc.h``, e.g. NV12 is described as: * * YUV 4:2:0 image with a plane of 8-bit Y samples followed by an * interleaved U/V plane containing 8-bit 2x2 subsampled colour difference * samples. * * So it would consist of a Y plane at ``offsets[0]`` and a UV plane at * ``offsets[1]``. * * To accommodate tiled, compressed, etc formats, a modifier can be specified. * For more information see the "Format Modifiers" section. Note that even * though it looks like we have a modifier per-plane, we in fact do not. The * modifier for each plane must be identical. Thus all combinations of * different data layouts for multi-plane formats must be enumerated as * separate modifiers. * * All of the entries in @handles, @pitches, @offsets and @modifier must be * zero when unused. Warning, for @offsets and @modifier zero can't be used to * figure out whether the entry is used or not since it's a valid value (a zero * offset is common, and a zero modifier is &DRM_FORMAT_MOD_LINEAR).
*/ struct drm_mode_fb_cmd2 { /** @fb_id: Object ID of the frame-buffer. */
__u32 fb_id; /** @width: Width of the frame-buffer. */
__u32 width; /** @height: Height of the frame-buffer. */
__u32 height; /** * @pixel_format: FourCC format code, see ``DRM_FORMAT_*`` constants in * ``drm_fourcc.h``.
*/
__u32 pixel_format; /** * @flags: Frame-buffer flags (see &DRM_MODE_FB_INTERLACED and * &DRM_MODE_FB_MODIFIERS).
*/
__u32 flags;
/** * @handles: GEM buffer handle, one per plane. Set to 0 if the plane is * unused. The same handle can be used for multiple planes.
*/
__u32 handles[4]; /** @pitches: Pitch (aka. stride) in bytes, one per plane. */
__u32 pitches[4]; /** @offsets: Offset into the buffer in bytes, one per plane. */
__u32 offsets[4]; /** * @modifier: Format modifier, one per plane. See ``DRM_FORMAT_MOD_*`` * constants in ``drm_fourcc.h``. All planes must use the same * modifier. Ignored unless &DRM_MODE_FB_MODIFIERS is set in @flags.
*/
__u64 modifier[4];
};
/* * Mark a region of a framebuffer as dirty. * * Some hardware does not automatically update display contents * as a hardware or software draw to a framebuffer. This ioctl * allows userspace to tell the kernel and the hardware what * regions of the framebuffer have changed. * * The kernel or hardware is free to update more then just the * region specified by the clip rects. The kernel or hardware * may also delay and/or coalesce several calls to dirty into a * single update. * * Userspace may annotate the updates, the annotates are a * promise made by the caller that the change is either a copy * of pixels or a fill of a single color in the region specified. * * If the DRM_MODE_FB_DIRTY_ANNOTATE_COPY flag is given then * the number of updated regions are half of num_clips given, * where the clip rects are paired in src and dst. The width and * height of each one of the pairs must match. * * If the DRM_MODE_FB_DIRTY_ANNOTATE_FILL flag is given the caller * promises that the region specified of the clip rects is filled * completely with a single color as given in the color argument.
*/
/* * depending on the value in flags different members are used. * * CURSOR_BO uses * crtc_id * width * height * handle - if 0 turns the cursor off * * CURSOR_MOVE uses * crtc_id * x * y
*/ struct drm_mode_cursor {
__u32 flags;
__u32 crtc_id;
__s32 x;
__s32 y;
__u32 width;
__u32 height; /* driver specific handle */
__u32 handle;
};
struct drm_color_lut { /* * Values are mapped linearly to 0.0 - 1.0 range, with 0x0 == 0.0 and * 0xffff == 1.0.
*/
__u16 red;
__u16 green;
__u16 blue;
__u16 reserved;
};
/** * struct drm_plane_size_hint - Plane size hints * @width: The width of the plane in pixel * @height: The height of the plane in pixel * * The plane SIZE_HINTS property blob contains an * array of struct drm_plane_size_hint.
*/ struct drm_plane_size_hint {
__u16 width;
__u16 height;
};
/** * struct hdr_metadata_infoframe - HDR Metadata Infoframe Data. * * HDR Metadata Infoframe as per CTA 861.G spec. This is expected * to match exactly with the spec. * * Userspace is expected to pass the metadata information as per * the format described in this structure.
*/ struct hdr_metadata_infoframe { /** * @eotf: Electro-Optical Transfer Function (EOTF) * used in the stream.
*/
__u8 eotf; /** * @metadata_type: Static_Metadata_Descriptor_ID.
*/
__u8 metadata_type; /** * @display_primaries: Color Primaries of the Data. * These are coded as unsigned 16-bit values in units of * 0.00002, where 0x0000 represents zero and 0xC350 * represents 1.0000. * @display_primaries.x: X coordinate of color primary. * @display_primaries.y: Y coordinate of color primary.
*/ struct {
__u16 x, y;
} display_primaries[3]; /** * @white_point: White Point of Colorspace Data. * These are coded as unsigned 16-bit values in units of * 0.00002, where 0x0000 represents zero and 0xC350 * represents 1.0000. * @white_point.x: X coordinate of whitepoint of color primary. * @white_point.y: Y coordinate of whitepoint of color primary.
*/ struct {
__u16 x, y;
} white_point; /** * @max_display_mastering_luminance: Max Mastering Display Luminance. * This value is coded as an unsigned 16-bit value in units of 1 cd/m2, * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
*/
__u16 max_display_mastering_luminance; /** * @min_display_mastering_luminance: Min Mastering Display Luminance. * This value is coded as an unsigned 16-bit value in units of * 0.0001 cd/m2, where 0x0001 represents 0.0001 cd/m2 and 0xFFFF * represents 6.5535 cd/m2.
*/
__u16 min_display_mastering_luminance; /** * @max_cll: Max Content Light Level. * This value is coded as an unsigned 16-bit value in units of 1 cd/m2, * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
*/
__u16 max_cll; /** * @max_fall: Max Frame Average Light Level. * This value is coded as an unsigned 16-bit value in units of 1 cd/m2, * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
*/
__u16 max_fall;
};
/** * struct hdr_output_metadata - HDR output metadata * * Metadata Information to be passed from userspace
*/ struct hdr_output_metadata { /** * @metadata_type: Static_Metadata_Descriptor_ID.
*/
__u32 metadata_type; /** * @hdmi_metadata_type1: HDR Metadata Infoframe.
*/ union { struct hdr_metadata_infoframe hdmi_metadata_type1;
};
};
/** * DRM_MODE_PAGE_FLIP_EVENT * * Request that the kernel sends back a vblank event (see * struct drm_event_vblank) with the &DRM_EVENT_FLIP_COMPLETE type when the * page-flip is done.
*/ #define DRM_MODE_PAGE_FLIP_EVENT 0x01 /** * DRM_MODE_PAGE_FLIP_ASYNC * * Request that the page-flip is performed as soon as possible, ie. with no * delay due to waiting for vblank. This may cause tearing to be visible on * the screen. * * When used with atomic uAPI, the driver will return an error if the hardware * doesn't support performing an asynchronous page-flip for this update. * User-space should handle this, e.g. by falling back to a regular page-flip. * * Note, some hardware might need to perform one last synchronous page-flip * before being able to switch to asynchronous page-flips. As an exception, * the driver will return success even though that first page-flip is not * asynchronous.
*/ #define DRM_MODE_PAGE_FLIP_ASYNC 0x02 #define DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE 0x4 #define DRM_MODE_PAGE_FLIP_TARGET_RELATIVE 0x8 #define DRM_MODE_PAGE_FLIP_TARGET (DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE | \
DRM_MODE_PAGE_FLIP_TARGET_RELATIVE) /** * DRM_MODE_PAGE_FLIP_FLAGS * * Bitmask of flags suitable for &drm_mode_crtc_page_flip_target.flags.
*/ #define DRM_MODE_PAGE_FLIP_FLAGS (DRM_MODE_PAGE_FLIP_EVENT | \
DRM_MODE_PAGE_FLIP_ASYNC | \
DRM_MODE_PAGE_FLIP_TARGET)
/* * Request a page flip on the specified crtc. * * This ioctl will ask KMS to schedule a page flip for the specified * crtc. Once any pending rendering targeting the specified fb (as of * ioctl time) has completed, the crtc will be reprogrammed to display * that fb after the next vertical refresh. The ioctl returns * immediately, but subsequent rendering to the current fb will block * in the execbuffer ioctl until the page flip happens. If a page * flip is already pending as the ioctl is called, EBUSY will be * returned. * * Flag DRM_MODE_PAGE_FLIP_EVENT requests that drm sends back a vblank * event (see drm.h: struct drm_event_vblank) when the page flip is * done. The user_data field passed in with this ioctl will be * returned as the user_data field in the vblank event struct. * * Flag DRM_MODE_PAGE_FLIP_ASYNC requests that the flip happen * 'as soon as possible', meaning that it not delay waiting for vblank. * This may cause tearing on the screen. * * The reserved field must be zero.
*/
/* * Request a page flip on the specified crtc. * * Same as struct drm_mode_crtc_page_flip, but supports new flags and * re-purposes the reserved field: * * The sequence field must be zero unless either of the * DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is specified. When * the ABSOLUTE flag is specified, the sequence field denotes the absolute * vblank sequence when the flip should take effect. When the RELATIVE * flag is specified, the sequence field denotes the relative (to the * current one when the ioctl is called) vblank sequence when the flip * should take effect. NOTE: DRM_IOCTL_WAIT_VBLANK must still be used to * make sure the vblank sequence before the target one has passed before * calling this ioctl. The purpose of the * DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is merely to clarify * the target for when code dealing with a page flip runs during a * vertical blank period.
*/
/** * struct drm_mode_create_dumb - Create a KMS dumb buffer for scanout. * @height: buffer height in pixels * @width: buffer width in pixels * @bpp: bits per pixel * @flags: must be zero * @handle: buffer object handle * @pitch: number of bytes between two consecutive lines * @size: size of the whole buffer in bytes * * User-space fills @height, @width, @bpp and @flags. If the IOCTL succeeds, * the kernel fills @handle, @pitch and @size.
*/ struct drm_mode_create_dumb {
__u32 height;
__u32 width;
__u32 bpp;
__u32 flags;
__u32 handle;
__u32 pitch;
__u64 size;
};
/* set up for mmap of a dumb scanout buffer */ struct drm_mode_map_dumb { /** Handle for the object being mapped. */
__u32 handle;
__u32 pad; /** * Fake offset to use for subsequent mmap call * * This is a fixed-size type for 32/64 compatibility.
*/
__u64 offset;
};
struct drm_mode_destroy_dumb {
__u32 handle;
};
/** * DRM_MODE_ATOMIC_TEST_ONLY * * Do not apply the atomic commit, instead check whether the hardware supports * this configuration. * * See &drm_mode_config_funcs.atomic_check for more details on test-only * commits.
*/ #define DRM_MODE_ATOMIC_TEST_ONLY 0x0100 /** * DRM_MODE_ATOMIC_NONBLOCK * * Do not block while applying the atomic commit. The &DRM_IOCTL_MODE_ATOMIC * IOCTL returns immediately instead of waiting for the changes to be applied * in hardware. Note, the driver will still check that the update can be * applied before retuning.
*/ #define DRM_MODE_ATOMIC_NONBLOCK 0x0200 /** * DRM_MODE_ATOMIC_ALLOW_MODESET * * Allow the update to result in temporary or transient visible artifacts while * the update is being applied. Applying the update may also take significantly * more time than a page flip. All visual artifacts will disappear by the time * the update is completed, as signalled through the vblank event's timestamp * (see struct drm_event_vblank). * * This flag must be set when the KMS update might cause visible artifacts. * Without this flag such KMS update will return a EINVAL error. What kind of * update may cause visible artifacts depends on the driver and the hardware. * User-space that needs to know beforehand if an update might cause visible * artifacts can use &DRM_MODE_ATOMIC_TEST_ONLY without * &DRM_MODE_ATOMIC_ALLOW_MODESET to see if it fails. * * To the best of the driver's knowledge, visual artifacts are guaranteed to * not appear when this flag is not set. Some sinks might display visual * artifacts outside of the driver's control.
*/ #define DRM_MODE_ATOMIC_ALLOW_MODESET 0x0400
/** * DRM_MODE_ATOMIC_FLAGS * * Bitfield of flags accepted by the &DRM_IOCTL_MODE_ATOMIC IOCTL in * &drm_mode_atomic.flags.
*/ #define DRM_MODE_ATOMIC_FLAGS (\
DRM_MODE_PAGE_FLIP_EVENT |\
DRM_MODE_PAGE_FLIP_ASYNC |\
DRM_MODE_ATOMIC_TEST_ONLY |\
DRM_MODE_ATOMIC_NONBLOCK |\
DRM_MODE_ATOMIC_ALLOW_MODESET)
struct drm_format_modifier { /* Bitmask of formats in get_plane format list this info applies to. The * offset allows a sliding window of which 64 formats (bits). * * Some examples: * In today's world with < 65 formats, and formats 0, and 2 are * supported * 0x0000000000000005 * ^-offset = 0, formats = 5 * * If the number formats grew to 128, and formats 98-102 are * supported with the modifier: * * 0x0000007c00000000 0000000000000000 * ^ * |__offset = 64, formats = 0x7c00000000 *
*/
__u64 formats;
__u32 offset;
__u32 pad;
/* The modifier that applies to the >get_plane format list bitmask. */
__u64 modifier;
};
/** * struct drm_mode_create_blob - Create New blob property * * Create a new 'blob' data property, copying length bytes from data pointer, * and returning new blob ID.
*/ struct drm_mode_create_blob { /** @data: Pointer to data to copy. */
__u64 data; /** @length: Length of data to copy. */
__u32 length; /** @blob_id: Return: new property ID. */
__u32 blob_id;
};
/** * struct drm_mode_destroy_blob - Destroy user blob * @blob_id: blob_id to destroy * * Destroy a user-created blob property. * * User-space can release blobs as soon as they do not need to refer to them by * their blob object ID. For instance, if you are using a MODE_ID blob in an * atomic commit and you will not make another commit re-using the same ID, you * can destroy the blob as soon as the commit has been issued, without waiting * for it to complete.
*/ struct drm_mode_destroy_blob {
__u32 blob_id;
};
/** * struct drm_mode_create_lease - Create lease * * Lease mode resources, creating another drm_master. * * The @object_ids array must reference at least one CRTC, one connector and * one plane if &DRM_CLIENT_CAP_UNIVERSAL_PLANES is enabled. Alternatively, * the lease can be completely empty.
*/ struct drm_mode_create_lease { /** @object_ids: Pointer to array of object ids (__u32) */
__u64 object_ids; /** @object_count: Number of object ids */
__u32 object_count; /** @flags: flags for new FD (O_CLOEXEC, etc) */
__u32 flags;
/** @lessee_id: Return: unique identifier for lessee. */
__u32 lessee_id; /** @fd: Return: file descriptor to new drm_master file */
__u32 fd;
};
/** * struct drm_mode_list_lessees - List lessees * * List lesses from a drm_master.
*/ struct drm_mode_list_lessees { /** * @count_lessees: Number of lessees. * * On input, provides length of the array. * On output, provides total number. No * more than the input number will be written * back, so two calls can be used to get * the size and then the data.
*/
__u32 count_lessees; /** @pad: Padding. */
__u32 pad;
/** * @lessees_ptr: Pointer to lessees. * * Pointer to __u64 array of lessee ids
*/
__u64 lessees_ptr;
};
/** * struct drm_mode_get_lease - Get Lease * * Get leased objects.
*/ struct drm_mode_get_lease { /** * @count_objects: Number of leased objects. * * On input, provides length of the array. * On output, provides total number. No * more than the input number will be written * back, so two calls can be used to get * the size and then the data.
*/
__u32 count_objects; /** @pad: Padding. */
__u32 pad;
/** * @objects_ptr: Pointer to objects. * * Pointer to __u32 array of object ids.
*/
__u64 objects_ptr;
};
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