#include <drm_crtc.h>
Public Attributes | |
| struct drm_device * | dev |
| struct device_node * | port |
| struct list_head | head |
: human readable name, can be overwritten by the driver | |
| char * | name |
| struct drm_modeset_lock | mutex |
| struct drm_mode_object | base |
| struct drm_plane * | primary |
| struct drm_plane * | cursor |
| unsigned | index |
| int | cursor_x |
| int | cursor_y |
| bool | enabled |
| struct drm_display_mode | mode |
| struct drm_display_mode | hwmode |
| int | x |
| int | y |
| const struct drm_crtc_funcs * | funcs |
| uint32_t | gamma_size |
| uint16_t * | gamma_store |
| const struct drm_crtc_helper_funcs * | helper_private |
| struct drm_object_properties | properties |
| struct drm_property * | scaling_filter_property |
| struct drm_property * | sharpness_strength_property |
| struct drm_crtc_state * | state |
| struct list_head | commit_list |
| spinlock_t | commit_lock |
| struct dentry * | debugfs_entry |
| struct drm_crtc_crc | crc |
| unsigned int | fence_context |
| spinlock_t | fence_lock |
| unsigned long | fence_seqno |
| char | timeline_name [32] |
| struct drm_self_refresh_data * | self_refresh_data |
Detailed Description
struct drm_crtc - central CRTC control structure
Each CRTC may have one or more connectors associated with it. This structure allows the CRTC to be controlled.
Member Data Documentation
◆ base
| struct drm_mode_object drm_crtc::base |
@base: base KMS object for ID tracking etc.
◆ commit_list
@commit_list:
List of &drm_crtc_commit structures tracking pending commits. Protected by @commit_lock. This list holds its own full reference, as does the ongoing commit.
"Note that the commit for a state change is also tracked in &drm_crtc_state.commit. For accessing the immediately preceding commit in an atomic update it is recommended to just use that pointer in the old CRTC state, since accessing that doesn't need any locking or list-walking. @commit_list should only be used to stall for framebuffer cleanup that's signalled through &drm_crtc_commit.cleanup_done."
◆ commit_lock
| spinlock_t drm_crtc::commit_lock |
@commit_lock:
Spinlock to protect @commit_list.
◆ crc
| struct drm_crtc_crc drm_crtc::crc |
@crc:
Configuration settings of CRC capture.
◆ cursor
@cursor: Cursor plane for this CRTC. Note that this is only relevant for legacy IOCTL, it specifies the plane implicitly used by the SETCURSOR and SETCURSOR2 IOCTLs. It does not have any significance beyond that.
◆ cursor_x
| int drm_crtc::cursor_x |
@cursor_x: Current x position of the cursor, used for universal cursor planes because the SETCURSOR IOCTL only can update the framebuffer without supplying the coordinates. Drivers should not use this directly, atomic drivers should look at &drm_plane_state.crtc_x of the cursor plane instead.
◆ cursor_y
| int drm_crtc::cursor_y |
@cursor_y: Current y position of the cursor, used for universal cursor planes because the SETCURSOR IOCTL only can update the framebuffer without supplying the coordinates. Drivers should not use this directly, atomic drivers should look at &drm_plane_state.crtc_y of the cursor plane instead.
◆ debugfs_entry
| struct dentry* drm_crtc::debugfs_entry |
@debugfs_entry:
Debugfs directory for this CRTC.
◆ dev
| struct drm_device* drm_crtc::dev |
@dev: parent DRM device
◆ enabled
| bool drm_crtc::enabled |
@enabled:
Is this CRTC enabled? Should only be used by legacy drivers, atomic drivers should instead consult &drm_crtc_state.enable and &drm_crtc_state.active. Atomic drivers can update this by calling drm_atomic_helper_update_legacy_modeset_state().
◆ fence_context
◆ fence_lock
| spinlock_t drm_crtc::fence_lock |
@fence_lock:
spinlock to protect the fences in the fence_context.
◆ fence_seqno
@fence_seqno:
Seqno variable used as monotonic counter for the fences created on the CRTC's timeline.
◆ funcs
| const struct drm_crtc_funcs* drm_crtc::funcs |
@funcs: CRTC control functions
◆ gamma_size
| uint32_t drm_crtc::gamma_size |
@gamma_size: Size of legacy gamma ramp reported to userspace. Set up by calling drm_mode_crtc_set_gamma_size().
Note that atomic drivers need to instead use &drm_crtc_state.gamma_lut. See drm_crtc_enable_color_mgmt().
◆ gamma_store
| uint16_t* drm_crtc::gamma_store |
@gamma_store: Gamma ramp values used by the legacy SETGAMMA and GETGAMMA IOCTls. Set up by calling drm_mode_crtc_set_gamma_size().
Note that atomic drivers need to instead use &drm_crtc_state.gamma_lut. See drm_crtc_enable_color_mgmt().
◆ head
@head:
List of all CRTCs on @dev, linked from &drm_mode_config.crtc_list. Invariant over the lifetime of @dev and therefore does not need locking.
◆ helper_private
| const struct drm_crtc_helper_funcs* drm_crtc::helper_private |
@helper_private: mid-layer private data
◆ hwmode
| struct drm_display_mode drm_crtc::hwmode |
@hwmode:
Programmed mode in hw, after adjustments for encoders, crtc, panel scaling etc. Should only be used by legacy drivers, for high precision vblank timestamps in drm_crtc_vblank_helper_get_vblank_timestamp().
Note that atomic drivers should not use this, but instead use &drm_crtc_state.adjusted_mode. And for high-precision timestamps drm_crtc_vblank_helper_get_vblank_timestamp() used &drm_vblank_crtc.hwmode, which is filled out by calling drm_calc_timestamping_constants().
◆ index
| unsigned drm_crtc::index |
@index: Position inside the mode_config.list, can be used as an array index. It is invariant over the lifetime of the CRTC.
◆ mode
| struct drm_display_mode drm_crtc::mode |
@mode:
Current mode timings. Should only be used by legacy drivers, atomic drivers should instead consult &drm_crtc_state.mode. Atomic drivers can update this by calling drm_atomic_helper_update_legacy_modeset_state().
◆ mutex
| struct drm_modeset_lock drm_crtc::mutex |
@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, CRTC properties ...). A full modeset also need to grab &drm_mode_config.connection_mutex.
For atomic drivers specifically this protects @state.
◆ name
| char* drm_crtc::name |
◆ port
| struct device_node* drm_crtc::port |
@port: OF node used by drm_of_find_possible_crtcs().
◆ primary
@primary: Primary plane for this CRTC. Note that this is only relevant for legacy IOCTL, it specifies the plane implicitly used by the SETCRTC and PAGE_FLIP IOCTLs. It does not have any significance beyond that.
◆ properties
| struct drm_object_properties drm_crtc::properties |
@properties: property tracking for this CRTC
◆ scaling_filter_property
| struct drm_property* drm_crtc::scaling_filter_property |
@scaling_filter_property: property to apply a particular filter while scaling.
◆ self_refresh_data
| struct drm_self_refresh_data* drm_crtc::self_refresh_data |
@self_refresh_data: Holds the state for the self refresh helpers
Initialized via drm_self_refresh_helper_init().
◆ sharpness_strength_property
| struct drm_property* drm_crtc::sharpness_strength_property |
@sharpness_strength_property: property to apply the intensity of the sharpness requested.
◆ state
| struct drm_crtc_state* drm_crtc::state |
@state:
Current atomic state for this CRTC.
This is protected by @mutex. Note that nonblocking atomic commits access the current CRTC state without taking locks. Either by going through the &struct drm_atomic_commit pointers, see for_each_oldnew_crtc_in_state(), for_each_old_crtc_in_state() and for_each_new_crtc_in_state(). Or through careful ordering of atomic commit operations as implemented in the atomic helpers, see &struct drm_crtc_commit.
◆ timeline_name
| char drm_crtc::timeline_name[32] |
@timeline_name:
The name of the CRTC's fence timeline.
◆ x
| int drm_crtc::x |
@x: x position on screen. Should only be used by legacy drivers, atomic drivers should look at &drm_plane_state.crtc_x of the primary plane instead. Updated by calling drm_atomic_helper_update_legacy_modeset_state().
◆ y
| int drm_crtc::y |
@y: y position on screen. Should only be used by legacy drivers, atomic drivers should look at &drm_plane_state.crtc_y of the primary plane instead. Updated by calling drm_atomic_helper_update_legacy_modeset_state().
The documentation for this struct was generated from the following file:
- XenevaOS/BaseHdr/drm/drm_crtc.h
