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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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![Simon Ser](/assets/img/avatar_default.png)
Mention that connectors need to be referenced manually if they are to be accessed after the iteration has progressed or ended. Signed-off-by: Simon Ser <contact@emersion.fr> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/KRoUI7OC9lRIvk3YzdGm6tcMVAVlG1fR78Ll7kTZZT4@cp3-web-051.plabs.ch
1785 lines
55 KiB
C
1785 lines
55 KiB
C
/*
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* Copyright (c) 2016 Intel Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#ifndef __DRM_CONNECTOR_H__
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#define __DRM_CONNECTOR_H__
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#include <linux/list.h>
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#include <linux/llist.h>
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#include <linux/ctype.h>
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#include <linux/hdmi.h>
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#include <drm/drm_mode_object.h>
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#include <drm/drm_util.h>
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#include <uapi/drm/drm_mode.h>
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struct drm_connector_helper_funcs;
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struct drm_modeset_acquire_ctx;
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struct drm_device;
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struct drm_crtc;
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struct drm_encoder;
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struct drm_property;
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struct drm_property_blob;
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struct drm_printer;
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struct edid;
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struct i2c_adapter;
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enum drm_connector_force {
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DRM_FORCE_UNSPECIFIED,
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DRM_FORCE_OFF,
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DRM_FORCE_ON, /* force on analog part normally */
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DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
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};
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/**
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* enum drm_connector_status - status for a &drm_connector
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*
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* This enum is used to track the connector status. There are no separate
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* #defines for the uapi!
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*/
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enum drm_connector_status {
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/**
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* @connector_status_connected: The connector is definitely connected to
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* a sink device, and can be enabled.
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*/
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connector_status_connected = 1,
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/**
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* @connector_status_disconnected: The connector isn't connected to a
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* sink device which can be autodetect. For digital outputs like DP or
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* HDMI (which can be realiable probed) this means there's really
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* nothing there. It is driver-dependent whether a connector with this
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* status can be lit up or not.
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*/
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connector_status_disconnected = 2,
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/**
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* @connector_status_unknown: The connector's status could not be
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* reliably detected. This happens when probing would either cause
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* flicker (like load-detection when the connector is in use), or when a
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* hardware resource isn't available (like when load-detection needs a
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* free CRTC). It should be possible to light up the connector with one
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* of the listed fallback modes. For default configuration userspace
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* should only try to light up connectors with unknown status when
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* there's not connector with @connector_status_connected.
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*/
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connector_status_unknown = 3,
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};
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/**
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* enum drm_connector_registration_state - userspace registration status for
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* a &drm_connector
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*
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* This enum is used to track the status of initializing a connector and
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* registering it with userspace, so that DRM can prevent bogus modesets on
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* connectors that no longer exist.
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*/
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enum drm_connector_registration_state {
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/**
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* @DRM_CONNECTOR_INITIALIZING: The connector has just been created,
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* but has yet to be exposed to userspace. There should be no
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* additional restrictions to how the state of this connector may be
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* modified.
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*/
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DRM_CONNECTOR_INITIALIZING = 0,
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/**
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* @DRM_CONNECTOR_REGISTERED: The connector has been fully initialized
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* and registered with sysfs, as such it has been exposed to
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* userspace. There should be no additional restrictions to how the
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* state of this connector may be modified.
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*/
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DRM_CONNECTOR_REGISTERED = 1,
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/**
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* @DRM_CONNECTOR_UNREGISTERED: The connector has either been exposed
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* to userspace and has since been unregistered and removed from
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* userspace, or the connector was unregistered before it had a chance
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* to be exposed to userspace (e.g. still in the
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* @DRM_CONNECTOR_INITIALIZING state). When a connector is
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* unregistered, there are additional restrictions to how its state
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* may be modified:
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*
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* - An unregistered connector may only have its DPMS changed from
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* On->Off. Once DPMS is changed to Off, it may not be switched back
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* to On.
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* - Modesets are not allowed on unregistered connectors, unless they
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* would result in disabling its assigned CRTCs. This means
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* disabling a CRTC on an unregistered connector is OK, but enabling
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* one is not.
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* - Removing a CRTC from an unregistered connector is OK, but new
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* CRTCs may never be assigned to an unregistered connector.
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*/
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DRM_CONNECTOR_UNREGISTERED = 2,
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};
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enum subpixel_order {
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SubPixelUnknown = 0,
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SubPixelHorizontalRGB,
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SubPixelHorizontalBGR,
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SubPixelVerticalRGB,
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SubPixelVerticalBGR,
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SubPixelNone,
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};
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/**
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* struct drm_scrambling: sink's scrambling support.
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*/
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struct drm_scrambling {
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/**
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* @supported: scrambling supported for rates > 340 Mhz.
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*/
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bool supported;
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/**
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* @low_rates: scrambling supported for rates <= 340 Mhz.
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*/
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bool low_rates;
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};
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/*
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* struct drm_scdc - Information about scdc capabilities of a HDMI 2.0 sink
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*
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* Provides SCDC register support and capabilities related information on a
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* HDMI 2.0 sink. In case of a HDMI 1.4 sink, all parameter must be 0.
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*/
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struct drm_scdc {
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/**
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* @supported: status control & data channel present.
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*/
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bool supported;
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/**
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* @read_request: sink is capable of generating scdc read request.
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*/
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bool read_request;
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/**
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* @scrambling: sink's scrambling capabilities
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*/
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struct drm_scrambling scrambling;
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};
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/**
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* struct drm_hdmi_dsc_cap - DSC capabilities of HDMI sink
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*
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* Describes the DSC support provided by HDMI 2.1 sink.
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* The information is fetched fom additional HFVSDB blocks defined
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* for HDMI 2.1.
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*/
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struct drm_hdmi_dsc_cap {
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/** @v_1p2: flag for dsc1.2 version support by sink */
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bool v_1p2;
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/** @native_420: Does sink support DSC with 4:2:0 compression */
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bool native_420;
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/**
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* @all_bpp: Does sink support all bpp with 4:4:4: or 4:2:2
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* compressed formats
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*/
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bool all_bpp;
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/**
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* @bpc_supported: compressed bpc supported by sink : 10, 12 or 16 bpc
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*/
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u8 bpc_supported;
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/** @max_slices: maximum number of Horizontal slices supported by */
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u8 max_slices;
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/** @clk_per_slice : max pixel clock in MHz supported per slice */
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int clk_per_slice;
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/** @max_lanes : dsc max lanes supported for Fixed rate Link training */
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u8 max_lanes;
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/** @max_frl_rate_per_lane : maximum frl rate with DSC per lane */
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u8 max_frl_rate_per_lane;
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/** @total_chunk_kbytes: max size of chunks in KBs supported per line*/
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u8 total_chunk_kbytes;
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};
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/**
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* struct drm_hdmi_info - runtime information about the connected HDMI sink
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*
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* Describes if a given display supports advanced HDMI 2.0 features.
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* This information is available in CEA-861-F extension blocks (like HF-VSDB).
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*/
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struct drm_hdmi_info {
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/** @scdc: sink's scdc support and capabilities */
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struct drm_scdc scdc;
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/**
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* @y420_vdb_modes: bitmap of modes which can support ycbcr420
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* output only (not normal RGB/YCBCR444/422 outputs). The max VIC
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* defined by the CEA-861-G spec is 219, so the size is 256 bits to map
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* up to 256 VICs.
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*/
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unsigned long y420_vdb_modes[BITS_TO_LONGS(256)];
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/**
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* @y420_cmdb_modes: bitmap of modes which can support ycbcr420
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* output also, along with normal HDMI outputs. The max VIC defined by
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* the CEA-861-G spec is 219, so the size is 256 bits to map up to 256
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* VICs.
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*/
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unsigned long y420_cmdb_modes[BITS_TO_LONGS(256)];
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/** @y420_cmdb_map: bitmap of SVD index, to extraxt vcb modes */
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u64 y420_cmdb_map;
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/** @y420_dc_modes: bitmap of deep color support index */
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u8 y420_dc_modes;
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/** @max_frl_rate_per_lane: support fixed rate link */
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u8 max_frl_rate_per_lane;
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/** @max_lanes: supported by sink */
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u8 max_lanes;
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/** @dsc_cap: DSC capabilities of the sink */
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struct drm_hdmi_dsc_cap dsc_cap;
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};
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/**
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* enum drm_link_status - connector's link_status property value
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*
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* This enum is used as the connector's link status property value.
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* It is set to the values defined in uapi.
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*
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* @DRM_LINK_STATUS_GOOD: DP Link is Good as a result of successful
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* link training
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* @DRM_LINK_STATUS_BAD: DP Link is BAD as a result of link training
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* failure
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*/
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enum drm_link_status {
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DRM_LINK_STATUS_GOOD = DRM_MODE_LINK_STATUS_GOOD,
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DRM_LINK_STATUS_BAD = DRM_MODE_LINK_STATUS_BAD,
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};
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/**
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* enum drm_panel_orientation - panel_orientation info for &drm_display_info
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*
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* This enum is used to track the (LCD) panel orientation. There are no
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* separate #defines for the uapi!
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*
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* @DRM_MODE_PANEL_ORIENTATION_UNKNOWN: The drm driver has not provided any
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* panel orientation information (normal
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* for non panels) in this case the "panel
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* orientation" connector prop will not be
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* attached.
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* @DRM_MODE_PANEL_ORIENTATION_NORMAL: The top side of the panel matches the
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* top side of the device's casing.
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* @DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP: The top side of the panel matches the
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* bottom side of the device's casing, iow
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* the panel is mounted upside-down.
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* @DRM_MODE_PANEL_ORIENTATION_LEFT_UP: The left side of the panel matches the
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* top side of the device's casing.
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* @DRM_MODE_PANEL_ORIENTATION_RIGHT_UP: The right side of the panel matches the
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* top side of the device's casing.
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*/
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enum drm_panel_orientation {
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DRM_MODE_PANEL_ORIENTATION_UNKNOWN = -1,
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DRM_MODE_PANEL_ORIENTATION_NORMAL = 0,
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DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP,
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DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
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DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
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};
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/**
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* struct drm_monitor_range_info - Panel's Monitor range in EDID for
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* &drm_display_info
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*
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* This struct is used to store a frequency range supported by panel
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* as parsed from EDID's detailed monitor range descriptor block.
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*
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* @min_vfreq: This is the min supported refresh rate in Hz from
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* EDID's detailed monitor range.
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* @max_vfreq: This is the max supported refresh rate in Hz from
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* EDID's detailed monitor range
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*/
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struct drm_monitor_range_info {
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u8 min_vfreq;
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u8 max_vfreq;
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};
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/*
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* This is a consolidated colorimetry list supported by HDMI and
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* DP protocol standard. The respective connectors will register
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* a property with the subset of this list (supported by that
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* respective protocol). Userspace will set the colorspace through
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* a colorspace property which will be created and exposed to
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* userspace.
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*/
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/* For Default case, driver will set the colorspace */
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#define DRM_MODE_COLORIMETRY_DEFAULT 0
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/* CEA 861 Normal Colorimetry options */
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#define DRM_MODE_COLORIMETRY_NO_DATA 0
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#define DRM_MODE_COLORIMETRY_SMPTE_170M_YCC 1
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#define DRM_MODE_COLORIMETRY_BT709_YCC 2
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/* CEA 861 Extended Colorimetry Options */
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#define DRM_MODE_COLORIMETRY_XVYCC_601 3
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#define DRM_MODE_COLORIMETRY_XVYCC_709 4
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#define DRM_MODE_COLORIMETRY_SYCC_601 5
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#define DRM_MODE_COLORIMETRY_OPYCC_601 6
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#define DRM_MODE_COLORIMETRY_OPRGB 7
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#define DRM_MODE_COLORIMETRY_BT2020_CYCC 8
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#define DRM_MODE_COLORIMETRY_BT2020_RGB 9
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#define DRM_MODE_COLORIMETRY_BT2020_YCC 10
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/* Additional Colorimetry extension added as part of CTA 861.G */
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#define DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65 11
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#define DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER 12
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/* Additional Colorimetry Options added for DP 1.4a VSC Colorimetry Format */
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#define DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED 13
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#define DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT 14
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#define DRM_MODE_COLORIMETRY_BT601_YCC 15
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/**
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* enum drm_bus_flags - bus_flags info for &drm_display_info
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*
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* This enum defines signal polarities and clock edge information for signals on
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* a bus as bitmask flags.
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*
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* The clock edge information is conveyed by two sets of symbols,
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* DRM_BUS_FLAGS_*_DRIVE_\* and DRM_BUS_FLAGS_*_SAMPLE_\*. When this enum is
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* used to describe a bus from the point of view of the transmitter, the
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* \*_DRIVE_\* flags should be used. When used from the point of view of the
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* receiver, the \*_SAMPLE_\* flags should be used. The \*_DRIVE_\* and
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* \*_SAMPLE_\* flags alias each other, with the \*_SAMPLE_POSEDGE and
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* \*_SAMPLE_NEGEDGE flags being equal to \*_DRIVE_NEGEDGE and \*_DRIVE_POSEDGE
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* respectively. This simplifies code as signals are usually sampled on the
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* opposite edge of the driving edge. Transmitters and receivers may however
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* need to take other signal timings into account to convert between driving
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* and sample edges.
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*/
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enum drm_bus_flags {
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/**
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* @DRM_BUS_FLAG_DE_LOW:
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*
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* The Data Enable signal is active low
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*/
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DRM_BUS_FLAG_DE_LOW = BIT(0),
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/**
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* @DRM_BUS_FLAG_DE_HIGH:
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*
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* The Data Enable signal is active high
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*/
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DRM_BUS_FLAG_DE_HIGH = BIT(1),
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/**
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* @DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE:
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*
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* Data is driven on the rising edge of the pixel clock
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*/
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DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE = BIT(2),
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/**
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* @DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE:
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*
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* Data is driven on the falling edge of the pixel clock
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*/
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DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE = BIT(3),
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/**
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* @DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE:
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*
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* Data is sampled on the rising edge of the pixel clock
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*/
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DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE = DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
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/**
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* @DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE:
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*
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* Data is sampled on the falling edge of the pixel clock
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*/
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DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE = DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
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/**
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* @DRM_BUS_FLAG_DATA_MSB_TO_LSB:
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*
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* Data is transmitted MSB to LSB on the bus
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*/
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DRM_BUS_FLAG_DATA_MSB_TO_LSB = BIT(4),
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/**
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* @DRM_BUS_FLAG_DATA_LSB_TO_MSB:
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*
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* Data is transmitted LSB to MSB on the bus
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*/
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DRM_BUS_FLAG_DATA_LSB_TO_MSB = BIT(5),
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/**
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* @DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE:
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*
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* Sync signals are driven on the rising edge of the pixel clock
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*/
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DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE = BIT(6),
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/**
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* @DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE:
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*
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* Sync signals are driven on the falling edge of the pixel clock
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*/
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DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE = BIT(7),
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/**
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* @DRM_BUS_FLAG_SYNC_SAMPLE_POSEDGE:
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*
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* Sync signals are sampled on the rising edge of the pixel clock
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*/
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DRM_BUS_FLAG_SYNC_SAMPLE_POSEDGE = DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE,
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/**
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* @DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE:
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*
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* Sync signals are sampled on the falling edge of the pixel clock
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*/
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DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE = DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE,
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/**
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* @DRM_BUS_FLAG_SHARP_SIGNALS:
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*
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* Set if the Sharp-specific signals (SPL, CLS, PS, REV) must be used
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*/
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DRM_BUS_FLAG_SHARP_SIGNALS = BIT(8),
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};
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/**
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* struct drm_display_info - runtime data about the connected sink
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*
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* Describes a given display (e.g. CRT or flat panel) and its limitations. For
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* fixed display sinks like built-in panels there's not much difference between
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* this and &struct drm_connector. But for sinks with a real cable this
|
|
* structure is meant to describe all the things at the other end of the cable.
|
|
*
|
|
* For sinks which provide an EDID this can be filled out by calling
|
|
* drm_add_edid_modes().
|
|
*/
|
|
struct drm_display_info {
|
|
/**
|
|
* @width_mm: Physical width in mm.
|
|
*/
|
|
unsigned int width_mm;
|
|
|
|
/**
|
|
* @height_mm: Physical height in mm.
|
|
*/
|
|
unsigned int height_mm;
|
|
|
|
/**
|
|
* @bpc: Maximum bits per color channel. Used by HDMI and DP outputs.
|
|
*/
|
|
unsigned int bpc;
|
|
|
|
/**
|
|
* @subpixel_order: Subpixel order of LCD panels.
|
|
*/
|
|
enum subpixel_order subpixel_order;
|
|
|
|
#define DRM_COLOR_FORMAT_RGB444 (1<<0)
|
|
#define DRM_COLOR_FORMAT_YCRCB444 (1<<1)
|
|
#define DRM_COLOR_FORMAT_YCRCB422 (1<<2)
|
|
#define DRM_COLOR_FORMAT_YCRCB420 (1<<3)
|
|
|
|
/**
|
|
* @panel_orientation: Read only connector property for built-in panels,
|
|
* indicating the orientation of the panel vs the device's casing.
|
|
* drm_connector_init() sets this to DRM_MODE_PANEL_ORIENTATION_UNKNOWN.
|
|
* When not UNKNOWN this gets used by the drm_fb_helpers to rotate the
|
|
* fb to compensate and gets exported as prop to userspace.
|
|
*/
|
|
int panel_orientation;
|
|
|
|
/**
|
|
* @color_formats: HDMI Color formats, selects between RGB and YCrCb
|
|
* modes. Used DRM_COLOR_FORMAT\_ defines, which are _not_ the same ones
|
|
* as used to describe the pixel format in framebuffers, and also don't
|
|
* match the formats in @bus_formats which are shared with v4l.
|
|
*/
|
|
u32 color_formats;
|
|
|
|
/**
|
|
* @bus_formats: Pixel data format on the wire, somewhat redundant with
|
|
* @color_formats. Array of size @num_bus_formats encoded using
|
|
* MEDIA_BUS_FMT\_ defines shared with v4l and media drivers.
|
|
*/
|
|
const u32 *bus_formats;
|
|
/**
|
|
* @num_bus_formats: Size of @bus_formats array.
|
|
*/
|
|
unsigned int num_bus_formats;
|
|
|
|
/**
|
|
* @bus_flags: Additional information (like pixel signal polarity) for
|
|
* the pixel data on the bus, using &enum drm_bus_flags values
|
|
* DRM_BUS_FLAGS\_.
|
|
*/
|
|
u32 bus_flags;
|
|
|
|
/**
|
|
* @max_tmds_clock: Maximum TMDS clock rate supported by the
|
|
* sink in kHz. 0 means undefined.
|
|
*/
|
|
int max_tmds_clock;
|
|
|
|
/**
|
|
* @dvi_dual: Dual-link DVI sink?
|
|
*/
|
|
bool dvi_dual;
|
|
|
|
/**
|
|
* @is_hdmi: True if the sink is an HDMI device.
|
|
*
|
|
* This field shall be used instead of calling
|
|
* drm_detect_hdmi_monitor() when possible.
|
|
*/
|
|
bool is_hdmi;
|
|
|
|
/**
|
|
* @has_hdmi_infoframe: Does the sink support the HDMI infoframe?
|
|
*/
|
|
bool has_hdmi_infoframe;
|
|
|
|
/**
|
|
* @rgb_quant_range_selectable: Does the sink support selecting
|
|
* the RGB quantization range?
|
|
*/
|
|
bool rgb_quant_range_selectable;
|
|
|
|
/**
|
|
* @edid_hdmi_dc_modes: Mask of supported hdmi deep color modes. Even
|
|
* more stuff redundant with @bus_formats.
|
|
*/
|
|
u8 edid_hdmi_dc_modes;
|
|
|
|
/**
|
|
* @cea_rev: CEA revision of the HDMI sink.
|
|
*/
|
|
u8 cea_rev;
|
|
|
|
/**
|
|
* @hdmi: advance features of a HDMI sink.
|
|
*/
|
|
struct drm_hdmi_info hdmi;
|
|
|
|
/**
|
|
* @non_desktop: Non desktop display (HMD).
|
|
*/
|
|
bool non_desktop;
|
|
|
|
/**
|
|
* @monitor_range: Frequency range supported by monitor range descriptor
|
|
*/
|
|
struct drm_monitor_range_info monitor_range;
|
|
};
|
|
|
|
int drm_display_info_set_bus_formats(struct drm_display_info *info,
|
|
const u32 *formats,
|
|
unsigned int num_formats);
|
|
|
|
/**
|
|
* struct drm_connector_tv_margins - TV connector related margins
|
|
*
|
|
* Describes the margins in pixels to put around the image on TV
|
|
* connectors to deal with overscan.
|
|
*/
|
|
struct drm_connector_tv_margins {
|
|
/**
|
|
* @bottom: Bottom margin in pixels.
|
|
*/
|
|
unsigned int bottom;
|
|
|
|
/**
|
|
* @left: Left margin in pixels.
|
|
*/
|
|
unsigned int left;
|
|
|
|
/**
|
|
* @right: Right margin in pixels.
|
|
*/
|
|
unsigned int right;
|
|
|
|
/**
|
|
* @top: Top margin in pixels.
|
|
*/
|
|
unsigned int top;
|
|
};
|
|
|
|
/**
|
|
* struct drm_tv_connector_state - TV connector related states
|
|
* @subconnector: selected subconnector
|
|
* @margins: TV margins
|
|
* @mode: TV mode
|
|
* @brightness: brightness in percent
|
|
* @contrast: contrast in percent
|
|
* @flicker_reduction: flicker reduction in percent
|
|
* @overscan: overscan in percent
|
|
* @saturation: saturation in percent
|
|
* @hue: hue in percent
|
|
*/
|
|
struct drm_tv_connector_state {
|
|
enum drm_mode_subconnector subconnector;
|
|
struct drm_connector_tv_margins margins;
|
|
unsigned int mode;
|
|
unsigned int brightness;
|
|
unsigned int contrast;
|
|
unsigned int flicker_reduction;
|
|
unsigned int overscan;
|
|
unsigned int saturation;
|
|
unsigned int hue;
|
|
};
|
|
|
|
/**
|
|
* struct drm_connector_state - mutable connector state
|
|
*/
|
|
struct drm_connector_state {
|
|
/** @connector: backpointer to the connector */
|
|
struct drm_connector *connector;
|
|
|
|
/**
|
|
* @crtc: CRTC to connect connector to, NULL if disabled.
|
|
*
|
|
* Do not change this directly, use drm_atomic_set_crtc_for_connector()
|
|
* instead.
|
|
*/
|
|
struct drm_crtc *crtc;
|
|
|
|
/**
|
|
* @best_encoder:
|
|
*
|
|
* Used by the atomic helpers to select the encoder, through the
|
|
* &drm_connector_helper_funcs.atomic_best_encoder or
|
|
* &drm_connector_helper_funcs.best_encoder callbacks.
|
|
*
|
|
* This is also used in the atomic helpers to map encoders to their
|
|
* current and previous connectors, see
|
|
* drm_atomic_get_old_connector_for_encoder() and
|
|
* drm_atomic_get_new_connector_for_encoder().
|
|
*
|
|
* NOTE: Atomic drivers must fill this out (either themselves or through
|
|
* helpers), for otherwise the GETCONNECTOR and GETENCODER IOCTLs will
|
|
* not return correct data to userspace.
|
|
*/
|
|
struct drm_encoder *best_encoder;
|
|
|
|
/**
|
|
* @link_status: Connector link_status to keep track of whether link is
|
|
* GOOD or BAD to notify userspace if retraining is necessary.
|
|
*/
|
|
enum drm_link_status link_status;
|
|
|
|
/** @state: backpointer to global drm_atomic_state */
|
|
struct drm_atomic_state *state;
|
|
|
|
/**
|
|
* @commit: Tracks the pending commit to prevent use-after-free conditions.
|
|
*
|
|
* Is only set when @crtc is NULL.
|
|
*/
|
|
struct drm_crtc_commit *commit;
|
|
|
|
/** @tv: TV connector state */
|
|
struct drm_tv_connector_state tv;
|
|
|
|
/**
|
|
* @self_refresh_aware:
|
|
*
|
|
* This tracks whether a connector is aware of the self refresh state.
|
|
* It should be set to true for those connector implementations which
|
|
* understand the self refresh state. This is needed since the crtc
|
|
* registers the self refresh helpers and it doesn't know if the
|
|
* connectors downstream have implemented self refresh entry/exit.
|
|
*
|
|
* Drivers should set this to true in atomic_check if they know how to
|
|
* handle self_refresh requests.
|
|
*/
|
|
bool self_refresh_aware;
|
|
|
|
/**
|
|
* @picture_aspect_ratio: Connector property to control the
|
|
* HDMI infoframe aspect ratio setting.
|
|
*
|
|
* The %DRM_MODE_PICTURE_ASPECT_\* values much match the
|
|
* values for &enum hdmi_picture_aspect
|
|
*/
|
|
enum hdmi_picture_aspect picture_aspect_ratio;
|
|
|
|
/**
|
|
* @content_type: Connector property to control the
|
|
* HDMI infoframe content type setting.
|
|
* The %DRM_MODE_CONTENT_TYPE_\* values much
|
|
* match the values.
|
|
*/
|
|
unsigned int content_type;
|
|
|
|
/**
|
|
* @hdcp_content_type: Connector property to pass the type of
|
|
* protected content. This is most commonly used for HDCP.
|
|
*/
|
|
unsigned int hdcp_content_type;
|
|
|
|
/**
|
|
* @scaling_mode: Connector property to control the
|
|
* upscaling, mostly used for built-in panels.
|
|
*/
|
|
unsigned int scaling_mode;
|
|
|
|
/**
|
|
* @content_protection: Connector property to request content
|
|
* protection. This is most commonly used for HDCP.
|
|
*/
|
|
unsigned int content_protection;
|
|
|
|
/**
|
|
* @colorspace: State variable for Connector property to request
|
|
* colorspace change on Sink. This is most commonly used to switch
|
|
* to wider color gamuts like BT2020.
|
|
*/
|
|
u32 colorspace;
|
|
|
|
/**
|
|
* @writeback_job: Writeback job for writeback connectors
|
|
*
|
|
* Holds the framebuffer and out-fence for a writeback connector. As
|
|
* the writeback completion may be asynchronous to the normal commit
|
|
* cycle, the writeback job lifetime is managed separately from the
|
|
* normal atomic state by this object.
|
|
*
|
|
* See also: drm_writeback_queue_job() and
|
|
* drm_writeback_signal_completion()
|
|
*/
|
|
struct drm_writeback_job *writeback_job;
|
|
|
|
/**
|
|
* @max_requested_bpc: Connector property to limit the maximum bit
|
|
* depth of the pixels.
|
|
*/
|
|
u8 max_requested_bpc;
|
|
|
|
/**
|
|
* @max_bpc: Connector max_bpc based on the requested max_bpc property
|
|
* and the connector bpc limitations obtained from edid.
|
|
*/
|
|
u8 max_bpc;
|
|
|
|
/**
|
|
* @hdr_output_metadata:
|
|
* DRM blob property for HDR output metadata
|
|
*/
|
|
struct drm_property_blob *hdr_output_metadata;
|
|
};
|
|
|
|
/**
|
|
* struct drm_connector_funcs - control connectors on a given device
|
|
*
|
|
* 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 {
|
|
/**
|
|
* @dpms:
|
|
*
|
|
* Legacy entry point to set the per-connector DPMS state. Legacy DPMS
|
|
* is exposed as a standard property on the connector, but diverted to
|
|
* this callback in the drm core. Note that atomic drivers don't
|
|
* implement the 4 level DPMS support on the connector any more, but
|
|
* instead only have an on/off "ACTIVE" property on the CRTC object.
|
|
*
|
|
* This hook is not used by atomic drivers, remapping of the legacy DPMS
|
|
* property is entirely handled in the DRM core.
|
|
*
|
|
* RETURNS:
|
|
*
|
|
* 0 on success or a negative error code on failure.
|
|
*/
|
|
int (*dpms)(struct drm_connector *connector, int mode);
|
|
|
|
/**
|
|
* @reset:
|
|
*
|
|
* Reset connector hardware and software state to off. This function isn't
|
|
* called by the core directly, only through drm_mode_config_reset().
|
|
* It's not a helper hook only for historical reasons.
|
|
*
|
|
* Atomic drivers can use drm_atomic_helper_connector_reset() to reset
|
|
* atomic state using this hook.
|
|
*/
|
|
void (*reset)(struct drm_connector *connector);
|
|
|
|
/**
|
|
* @detect:
|
|
*
|
|
* Check to see if anything is attached to the connector. The parameter
|
|
* force is set to false whilst polling, true when checking the
|
|
* connector due to a user request. force can be used by the driver to
|
|
* avoid expensive, destructive operations during automated probing.
|
|
*
|
|
* This callback is optional, if not implemented the connector will be
|
|
* considered as always being attached.
|
|
*
|
|
* FIXME:
|
|
*
|
|
* Note that this hook is only called by the probe helper. It's not in
|
|
* the helper library vtable purely for historical reasons. The only DRM
|
|
* core entry point to probe connector state is @fill_modes.
|
|
*
|
|
* Note that the helper library will already hold
|
|
* &drm_mode_config.connection_mutex. Drivers which need to grab additional
|
|
* locks to avoid races with concurrent modeset changes need to use
|
|
* &drm_connector_helper_funcs.detect_ctx instead.
|
|
*
|
|
* Also note that this callback can be called no matter the
|
|
* state the connector is in. Drivers that need the underlying
|
|
* device to be powered to perform the detection will first need
|
|
* to make sure it's been properly enabled.
|
|
*
|
|
* RETURNS:
|
|
*
|
|
* drm_connector_status indicating the connector's status.
|
|
*/
|
|
enum drm_connector_status (*detect)(struct drm_connector *connector,
|
|
bool force);
|
|
|
|
/**
|
|
* @force:
|
|
*
|
|
* This function is called to update internal encoder state when the
|
|
* connector is forced to a certain state by userspace, either through
|
|
* the sysfs interfaces or on the kernel cmdline. In that case the
|
|
* @detect callback isn't called.
|
|
*
|
|
* FIXME:
|
|
*
|
|
* Note that this hook is only called by the probe helper. It's not in
|
|
* the helper library vtable purely for historical reasons. The only DRM
|
|
* core entry point to probe connector state is @fill_modes.
|
|
*/
|
|
void (*force)(struct drm_connector *connector);
|
|
|
|
/**
|
|
* @fill_modes:
|
|
*
|
|
* Entry point for output detection and basic mode validation. The
|
|
* driver should reprobe the output if needed (e.g. when hotplug
|
|
* handling is unreliable), add all detected modes to &drm_connector.modes
|
|
* and filter out any the device can't support in any configuration. It
|
|
* also needs to filter out any modes wider or higher than the
|
|
* parameters max_width and max_height indicate.
|
|
*
|
|
* The drivers must also prune any modes no longer valid from
|
|
* &drm_connector.modes. Furthermore it must update
|
|
* &drm_connector.status and &drm_connector.edid. If no EDID has been
|
|
* received for this output connector->edid must be NULL.
|
|
*
|
|
* Drivers using the probe helpers should use
|
|
* drm_helper_probe_single_connector_modes() to implement this
|
|
* function.
|
|
*
|
|
* RETURNS:
|
|
*
|
|
* The number of modes detected and filled into &drm_connector.modes.
|
|
*/
|
|
int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
|
|
|
|
/**
|
|
* @set_property:
|
|
*
|
|
* This is the legacy entry point to update a property attached to the
|
|
* connector.
|
|
*
|
|
* This callback is optional if the driver does not support any legacy
|
|
* driver-private properties. For atomic drivers it is not used because
|
|
* property handling is done entirely in the DRM core.
|
|
*
|
|
* RETURNS:
|
|
*
|
|
* 0 on success or a negative error code on failure.
|
|
*/
|
|
int (*set_property)(struct drm_connector *connector, struct drm_property *property,
|
|
uint64_t val);
|
|
|
|
/**
|
|
* @late_register:
|
|
*
|
|
* This optional hook can be used to register additional userspace
|
|
* interfaces attached to the connector, light backlight control, i2c,
|
|
* DP aux or similar interfaces. It is called late in the driver load
|
|
* sequence from drm_connector_register() when registering all the
|
|
* core drm connector interfaces. Everything added from this callback
|
|
* should be unregistered in the early_unregister callback.
|
|
*
|
|
* This is called while holding &drm_connector.mutex.
|
|
*
|
|
* Returns:
|
|
*
|
|
* 0 on success, or a negative error code on failure.
|
|
*/
|
|
int (*late_register)(struct drm_connector *connector);
|
|
|
|
/**
|
|
* @early_unregister:
|
|
*
|
|
* This optional hook should be used to unregister the additional
|
|
* userspace interfaces attached to the connector from
|
|
* late_register(). It is called from drm_connector_unregister(),
|
|
* early in the driver unload sequence to disable userspace access
|
|
* before data structures are torndown.
|
|
*
|
|
* This is called while holding &drm_connector.mutex.
|
|
*/
|
|
void (*early_unregister)(struct drm_connector *connector);
|
|
|
|
/**
|
|
* @destroy:
|
|
*
|
|
* Clean up connector resources. This is called at driver unload time
|
|
* through drm_mode_config_cleanup(). It can also be called at runtime
|
|
* when a connector is being hot-unplugged for drivers that support
|
|
* connector hotplugging (e.g. DisplayPort MST).
|
|
*/
|
|
void (*destroy)(struct drm_connector *connector);
|
|
|
|
/**
|
|
* @atomic_duplicate_state:
|
|
*
|
|
* Duplicate the current atomic state for this connector and return it.
|
|
* The core and helpers guarantee that any atomic state duplicated with
|
|
* this hook and still owned by the caller (i.e. not transferred to the
|
|
* driver by calling &drm_mode_config_funcs.atomic_commit) will be
|
|
* cleaned up by calling the @atomic_destroy_state hook in this
|
|
* structure.
|
|
*
|
|
* This callback is mandatory for atomic drivers.
|
|
*
|
|
* Atomic drivers which don't subclass &struct drm_connector_state should use
|
|
* drm_atomic_helper_connector_duplicate_state(). Drivers that subclass the
|
|
* state structure to extend it with driver-private state should use
|
|
* __drm_atomic_helper_connector_duplicate_state() to make sure shared state is
|
|
* duplicated in a consistent fashion across drivers.
|
|
*
|
|
* It is an error to call this hook before &drm_connector.state has been
|
|
* initialized correctly.
|
|
*
|
|
* NOTE:
|
|
*
|
|
* If the duplicate state references refcounted resources this hook must
|
|
* acquire a reference for each of them. The driver must release these
|
|
* references again in @atomic_destroy_state.
|
|
*
|
|
* RETURNS:
|
|
*
|
|
* Duplicated atomic state or NULL when the allocation failed.
|
|
*/
|
|
struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector);
|
|
|
|
/**
|
|
* @atomic_destroy_state:
|
|
*
|
|
* Destroy a state duplicated with @atomic_duplicate_state and release
|
|
* or unreference all resources it references
|
|
*
|
|
* This callback is mandatory for atomic drivers.
|
|
*/
|
|
void (*atomic_destroy_state)(struct drm_connector *connector,
|
|
struct drm_connector_state *state);
|
|
|
|
/**
|
|
* @atomic_set_property:
|
|
*
|
|
* Decode a driver-private property value and store the decoded value
|
|
* into the passed-in state structure. Since the atomic core decodes all
|
|
* standardized properties (even for extensions beyond the core set of
|
|
* properties which might not be implemented by all drivers) this
|
|
* requires drivers to subclass the state structure.
|
|
*
|
|
* Such driver-private properties should really only be implemented for
|
|
* truly hardware/vendor specific state. Instead it is preferred to
|
|
* standardize atomic extension and decode the properties used to expose
|
|
* such an extension in the core.
|
|
*
|
|
* Do not call this function directly, use
|
|
* drm_atomic_connector_set_property() instead.
|
|
*
|
|
* This callback is optional if the driver does not support any
|
|
* driver-private atomic properties.
|
|
*
|
|
* NOTE:
|
|
*
|
|
* This function is called in the state assembly phase of atomic
|
|
* modesets, which can be aborted for any reason (including on
|
|
* userspace's request to just check whether a configuration would be
|
|
* possible). Drivers MUST NOT touch any persistent state (hardware or
|
|
* software) or data structures except the passed in @state parameter.
|
|
*
|
|
* Also since userspace controls in which order properties are set this
|
|
* function must not do any input validation (since the state update is
|
|
* incomplete and hence likely inconsistent). Instead any such input
|
|
* validation must be done in the various atomic_check callbacks.
|
|
*
|
|
* RETURNS:
|
|
*
|
|
* 0 if the property has been found, -EINVAL if the property isn't
|
|
* implemented by the driver (which shouldn't ever happen, the core only
|
|
* asks for properties attached to this connector). No other validation
|
|
* is allowed by the driver. The core already checks that the property
|
|
* value is within the range (integer, valid enum value, ...) the driver
|
|
* set when registering the property.
|
|
*/
|
|
int (*atomic_set_property)(struct drm_connector *connector,
|
|
struct drm_connector_state *state,
|
|
struct drm_property *property,
|
|
uint64_t val);
|
|
|
|
/**
|
|
* @atomic_get_property:
|
|
*
|
|
* Reads out the decoded driver-private property. This is used to
|
|
* implement the GETCONNECTOR IOCTL.
|
|
*
|
|
* Do not call this function directly, use
|
|
* drm_atomic_connector_get_property() instead.
|
|
*
|
|
* This callback is optional if the driver does not support any
|
|
* driver-private atomic properties.
|
|
*
|
|
* RETURNS:
|
|
*
|
|
* 0 on success, -EINVAL if the property isn't implemented by the
|
|
* driver (which shouldn't ever happen, the core only asks for
|
|
* properties attached to this connector).
|
|
*/
|
|
int (*atomic_get_property)(struct drm_connector *connector,
|
|
const struct drm_connector_state *state,
|
|
struct drm_property *property,
|
|
uint64_t *val);
|
|
|
|
/**
|
|
* @atomic_print_state:
|
|
*
|
|
* If driver subclasses &struct drm_connector_state, it should implement
|
|
* this optional hook for printing additional driver specific state.
|
|
*
|
|
* Do not call this directly, use drm_atomic_connector_print_state()
|
|
* instead.
|
|
*/
|
|
void (*atomic_print_state)(struct drm_printer *p,
|
|
const struct drm_connector_state *state);
|
|
};
|
|
|
|
/**
|
|
* struct drm_cmdline_mode - DRM Mode passed through the kernel command-line
|
|
*
|
|
* Each connector can have an initial mode with additional options
|
|
* passed through the kernel command line. This structure allows to
|
|
* express those parameters and will be filled by the command-line
|
|
* parser.
|
|
*/
|
|
struct drm_cmdline_mode {
|
|
/**
|
|
* @name:
|
|
*
|
|
* Name of the mode.
|
|
*/
|
|
char name[DRM_DISPLAY_MODE_LEN];
|
|
|
|
/**
|
|
* @specified:
|
|
*
|
|
* Has a mode been read from the command-line?
|
|
*/
|
|
bool specified;
|
|
|
|
/**
|
|
* @refresh_specified:
|
|
*
|
|
* Did the mode have a preferred refresh rate?
|
|
*/
|
|
bool refresh_specified;
|
|
|
|
/**
|
|
* @bpp_specified:
|
|
*
|
|
* Did the mode have a preferred BPP?
|
|
*/
|
|
bool bpp_specified;
|
|
|
|
/**
|
|
* @xres:
|
|
*
|
|
* Active resolution on the X axis, in pixels.
|
|
*/
|
|
int xres;
|
|
|
|
/**
|
|
* @yres:
|
|
*
|
|
* Active resolution on the Y axis, in pixels.
|
|
*/
|
|
int yres;
|
|
|
|
/**
|
|
* @bpp:
|
|
*
|
|
* Bits per pixels for the mode.
|
|
*/
|
|
int bpp;
|
|
|
|
/**
|
|
* @refresh:
|
|
*
|
|
* Refresh rate, in Hertz.
|
|
*/
|
|
int refresh;
|
|
|
|
/**
|
|
* @rb:
|
|
*
|
|
* Do we need to use reduced blanking?
|
|
*/
|
|
bool rb;
|
|
|
|
/**
|
|
* @interlace:
|
|
*
|
|
* The mode is interlaced.
|
|
*/
|
|
bool interlace;
|
|
|
|
/**
|
|
* @cvt:
|
|
*
|
|
* The timings will be calculated using the VESA Coordinated
|
|
* Video Timings instead of looking up the mode from a table.
|
|
*/
|
|
bool cvt;
|
|
|
|
/**
|
|
* @margins:
|
|
*
|
|
* Add margins to the mode calculation (1.8% of xres rounded
|
|
* down to 8 pixels and 1.8% of yres).
|
|
*/
|
|
bool margins;
|
|
|
|
/**
|
|
* @force:
|
|
*
|
|
* Ignore the hotplug state of the connector, and force its
|
|
* state to one of the DRM_FORCE_* values.
|
|
*/
|
|
enum drm_connector_force force;
|
|
|
|
/**
|
|
* @rotation_reflection:
|
|
*
|
|
* Initial rotation and reflection of the mode setup from the
|
|
* command line. See DRM_MODE_ROTATE_* and
|
|
* DRM_MODE_REFLECT_*. The only rotations supported are
|
|
* DRM_MODE_ROTATE_0 and DRM_MODE_ROTATE_180.
|
|
*/
|
|
unsigned int rotation_reflection;
|
|
|
|
/**
|
|
* @panel_orientation:
|
|
*
|
|
* drm-connector "panel orientation" property override value,
|
|
* DRM_MODE_PANEL_ORIENTATION_UNKNOWN if not set.
|
|
*/
|
|
enum drm_panel_orientation panel_orientation;
|
|
|
|
/**
|
|
* @tv_margins: TV margins to apply to the mode.
|
|
*/
|
|
struct drm_connector_tv_margins tv_margins;
|
|
};
|
|
|
|
/**
|
|
* struct drm_connector - central DRM connector control structure
|
|
*
|
|
* 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 {
|
|
/** @dev: parent DRM device */
|
|
struct drm_device *dev;
|
|
/** @kdev: kernel device for sysfs attributes */
|
|
struct device *kdev;
|
|
/** @attr: sysfs attributes */
|
|
struct device_attribute *attr;
|
|
|
|
/**
|
|
* @head:
|
|
*
|
|
* List of all connectors on a @dev, linked from
|
|
* &drm_mode_config.connector_list. Protected by
|
|
* &drm_mode_config.connector_list_lock, but please only use
|
|
* &drm_connector_list_iter to walk this list.
|
|
*/
|
|
struct list_head head;
|
|
|
|
/** @base: base KMS object */
|
|
struct drm_mode_object base;
|
|
|
|
/** @name: human readable name, can be overwritten by the driver */
|
|
char *name;
|
|
|
|
/**
|
|
* @mutex: Lock for general connector state, but currently only protects
|
|
* @registered. Most of the connector state is still protected by
|
|
* &drm_mode_config.mutex.
|
|
*/
|
|
struct mutex mutex;
|
|
|
|
/**
|
|
* @index: Compacted connector index, which matches the position inside
|
|
* the mode_config.list for drivers not supporting hot-add/removing. Can
|
|
* be used as an array index. It is invariant over the lifetime of the
|
|
* connector.
|
|
*/
|
|
unsigned index;
|
|
|
|
/**
|
|
* @connector_type:
|
|
* one of the DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
|
|
*/
|
|
int connector_type;
|
|
/** @connector_type_id: index into connector type enum */
|
|
int connector_type_id;
|
|
/**
|
|
* @interlace_allowed:
|
|
* Can this connector handle interlaced modes? Only used by
|
|
* drm_helper_probe_single_connector_modes() for mode filtering.
|
|
*/
|
|
bool interlace_allowed;
|
|
/**
|
|
* @doublescan_allowed:
|
|
* Can this connector handle doublescan? Only used by
|
|
* drm_helper_probe_single_connector_modes() for mode filtering.
|
|
*/
|
|
bool doublescan_allowed;
|
|
/**
|
|
* @stereo_allowed:
|
|
* Can this connector handle stereo modes? Only used by
|
|
* drm_helper_probe_single_connector_modes() for mode filtering.
|
|
*/
|
|
bool stereo_allowed;
|
|
|
|
/**
|
|
* @ycbcr_420_allowed : This bool indicates if this connector is
|
|
* capable of handling YCBCR 420 output. While parsing the EDID
|
|
* blocks it's very helpful to know if the source is capable of
|
|
* handling YCBCR 420 outputs.
|
|
*/
|
|
bool ycbcr_420_allowed;
|
|
|
|
/**
|
|
* @registration_state: Is this connector initializing, exposed
|
|
* (registered) with userspace, or unregistered?
|
|
*
|
|
* Protected by @mutex.
|
|
*/
|
|
enum drm_connector_registration_state registration_state;
|
|
|
|
/**
|
|
* @modes:
|
|
* Modes available on this connector (from fill_modes() + user).
|
|
* Protected by &drm_mode_config.mutex.
|
|
*/
|
|
struct list_head modes;
|
|
|
|
/**
|
|
* @status:
|
|
* One of the drm_connector_status enums (connected, not, or unknown).
|
|
* Protected by &drm_mode_config.mutex.
|
|
*/
|
|
enum drm_connector_status status;
|
|
|
|
/**
|
|
* @probed_modes:
|
|
* These are modes added by probing with DDC or the BIOS, before
|
|
* filtering is applied. Used by the probe helpers. Protected by
|
|
* &drm_mode_config.mutex.
|
|
*/
|
|
struct list_head probed_modes;
|
|
|
|
/**
|
|
* @display_info: Display information is filled from EDID information
|
|
* when a display is detected. For non hot-pluggable displays such as
|
|
* flat panels in embedded systems, the driver should initialize the
|
|
* &drm_display_info.width_mm and &drm_display_info.height_mm fields
|
|
* with the physical size of the display.
|
|
*
|
|
* Protected by &drm_mode_config.mutex.
|
|
*/
|
|
struct drm_display_info display_info;
|
|
|
|
/** @funcs: connector control functions */
|
|
const struct drm_connector_funcs *funcs;
|
|
|
|
/**
|
|
* @edid_blob_ptr: DRM property containing EDID if present. Protected by
|
|
* &drm_mode_config.mutex. This should be updated only by calling
|
|
* drm_connector_update_edid_property().
|
|
*/
|
|
struct drm_property_blob *edid_blob_ptr;
|
|
|
|
/** @properties: property tracking for this connector */
|
|
struct drm_object_properties properties;
|
|
|
|
/**
|
|
* @scaling_mode_property: Optional atomic property to control the
|
|
* upscaling. See drm_connector_attach_content_protection_property().
|
|
*/
|
|
struct drm_property *scaling_mode_property;
|
|
|
|
/**
|
|
* @vrr_capable_property: Optional property to help userspace
|
|
* query hardware support for variable refresh rate on a connector.
|
|
* connector. Drivers can add the property to a connector by
|
|
* calling drm_connector_attach_vrr_capable_property().
|
|
*
|
|
* This should be updated only by calling
|
|
* drm_connector_set_vrr_capable_property().
|
|
*/
|
|
struct drm_property *vrr_capable_property;
|
|
|
|
/**
|
|
* @colorspace_property: Connector property to set the suitable
|
|
* colorspace supported by the sink.
|
|
*/
|
|
struct drm_property *colorspace_property;
|
|
|
|
/**
|
|
* @path_blob_ptr:
|
|
*
|
|
* DRM blob property data for the DP MST path property. This should only
|
|
* be updated by calling drm_connector_set_path_property().
|
|
*/
|
|
struct drm_property_blob *path_blob_ptr;
|
|
|
|
/**
|
|
* @max_bpc_property: Default connector property for the max bpc to be
|
|
* driven out of the connector.
|
|
*/
|
|
struct drm_property *max_bpc_property;
|
|
|
|
#define DRM_CONNECTOR_POLL_HPD (1 << 0)
|
|
#define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
|
|
#define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
|
|
|
|
/**
|
|
* @polled:
|
|
*
|
|
* Connector polling mode, a combination of
|
|
*
|
|
* DRM_CONNECTOR_POLL_HPD
|
|
* The connector generates hotplug events and doesn't need to be
|
|
* periodically polled. The CONNECT and DISCONNECT flags must not
|
|
* be set together with the HPD flag.
|
|
*
|
|
* DRM_CONNECTOR_POLL_CONNECT
|
|
* Periodically poll the connector for connection.
|
|
*
|
|
* DRM_CONNECTOR_POLL_DISCONNECT
|
|
* Periodically poll the connector for disconnection, without
|
|
* causing flickering even when the connector is in use. DACs should
|
|
* rarely do this without a lot of testing.
|
|
*
|
|
* Set to 0 for connectors that don't support connection status
|
|
* discovery.
|
|
*/
|
|
uint8_t polled;
|
|
|
|
/**
|
|
* @dpms: Current dpms state. For legacy drivers the
|
|
* &drm_connector_funcs.dpms callback must update this. For atomic
|
|
* drivers, this is handled by the core atomic code, and drivers must
|
|
* only take &drm_crtc_state.active into account.
|
|
*/
|
|
int dpms;
|
|
|
|
/** @helper_private: mid-layer private data */
|
|
const struct drm_connector_helper_funcs *helper_private;
|
|
|
|
/** @cmdline_mode: mode line parsed from the kernel cmdline for this connector */
|
|
struct drm_cmdline_mode cmdline_mode;
|
|
/** @force: a DRM_FORCE_<foo> state for forced mode sets */
|
|
enum drm_connector_force force;
|
|
/** @override_edid: has the EDID been overwritten through debugfs for testing? */
|
|
bool override_edid;
|
|
/** @epoch_counter: used to detect any other changes in connector, besides status */
|
|
u64 epoch_counter;
|
|
|
|
/**
|
|
* @possible_encoders: Bit mask of encoders that can drive this
|
|
* connector, drm_encoder_index() determines the index into the bitfield
|
|
* and the bits are set with drm_connector_attach_encoder().
|
|
*/
|
|
u32 possible_encoders;
|
|
|
|
/**
|
|
* @encoder: Currently bound encoder driving this connector, if any.
|
|
* Only really meaningful for non-atomic drivers. Atomic drivers should
|
|
* instead look at &drm_connector_state.best_encoder, and in case they
|
|
* need the CRTC driving this output, &drm_connector_state.crtc.
|
|
*/
|
|
struct drm_encoder *encoder;
|
|
|
|
#define MAX_ELD_BYTES 128
|
|
/** @eld: EDID-like data, if present */
|
|
uint8_t eld[MAX_ELD_BYTES];
|
|
/** @latency_present: AV delay info from ELD, if found */
|
|
bool latency_present[2];
|
|
/**
|
|
* @video_latency: Video latency info from ELD, if found.
|
|
* [0]: progressive, [1]: interlaced
|
|
*/
|
|
int video_latency[2];
|
|
/**
|
|
* @audio_latency: audio latency info from ELD, if found
|
|
* [0]: progressive, [1]: interlaced
|
|
*/
|
|
int audio_latency[2];
|
|
|
|
/**
|
|
* @ddc: associated ddc adapter.
|
|
* A connector usually has its associated ddc adapter. If a driver uses
|
|
* this field, then an appropriate symbolic link is created in connector
|
|
* sysfs directory to make it easy for the user to tell which i2c
|
|
* adapter is for a particular display.
|
|
*
|
|
* The field should be set by calling drm_connector_init_with_ddc().
|
|
*/
|
|
struct i2c_adapter *ddc;
|
|
|
|
/**
|
|
* @null_edid_counter: track sinks that give us all zeros for the EDID.
|
|
* Needed to workaround some HW bugs where we get all 0s
|
|
*/
|
|
int null_edid_counter;
|
|
|
|
/** @bad_edid_counter: track sinks that give us an EDID with invalid checksum */
|
|
unsigned bad_edid_counter;
|
|
|
|
/**
|
|
* @edid_corrupt: Indicates whether the last read EDID was corrupt. Used
|
|
* in Displayport compliance testing - Displayport Link CTS Core 1.2
|
|
* rev1.1 4.2.2.6
|
|
*/
|
|
bool edid_corrupt;
|
|
/**
|
|
* @real_edid_checksum: real edid checksum for corrupted edid block.
|
|
* Required in Displayport 1.4 compliance testing
|
|
* rev1.1 4.2.2.6
|
|
*/
|
|
u8 real_edid_checksum;
|
|
|
|
/** @debugfs_entry: debugfs directory for this connector */
|
|
struct dentry *debugfs_entry;
|
|
|
|
/**
|
|
* @state:
|
|
*
|
|
* Current atomic state for this connector.
|
|
*
|
|
* This is protected by &drm_mode_config.connection_mutex. Note that
|
|
* nonblocking atomic commits access the current connector state without
|
|
* taking locks. Either by going through the &struct drm_atomic_state
|
|
* pointers, see for_each_oldnew_connector_in_state(),
|
|
* for_each_old_connector_in_state() and
|
|
* for_each_new_connector_in_state(). Or through careful ordering of
|
|
* atomic commit operations as implemented in the atomic helpers, see
|
|
* &struct drm_crtc_commit.
|
|
*/
|
|
struct drm_connector_state *state;
|
|
|
|
/* DisplayID bits. FIXME: Extract into a substruct? */
|
|
|
|
/**
|
|
* @tile_blob_ptr:
|
|
*
|
|
* DRM blob property data for the tile property (used mostly by DP MST).
|
|
* This is meant for screens which are driven through separate display
|
|
* pipelines represented by &drm_crtc, which might not be running with
|
|
* genlocked clocks. For tiled panels which are genlocked, like
|
|
* dual-link LVDS or dual-link DSI, the driver should try to not expose
|
|
* the tiling and virtualize both &drm_crtc and &drm_plane if needed.
|
|
*
|
|
* This should only be updated by calling
|
|
* drm_connector_set_tile_property().
|
|
*/
|
|
struct drm_property_blob *tile_blob_ptr;
|
|
|
|
/** @has_tile: is this connector connected to a tiled monitor */
|
|
bool has_tile;
|
|
/** @tile_group: tile group for the connected monitor */
|
|
struct drm_tile_group *tile_group;
|
|
/** @tile_is_single_monitor: whether the tile is one monitor housing */
|
|
bool tile_is_single_monitor;
|
|
|
|
/** @num_h_tile: number of horizontal tiles in the tile group */
|
|
/** @num_v_tile: number of vertical tiles in the tile group */
|
|
uint8_t num_h_tile, num_v_tile;
|
|
/** @tile_h_loc: horizontal location of this tile */
|
|
/** @tile_v_loc: vertical location of this tile */
|
|
uint8_t tile_h_loc, tile_v_loc;
|
|
/** @tile_h_size: horizontal size of this tile. */
|
|
/** @tile_v_size: vertical size of this tile. */
|
|
uint16_t tile_h_size, tile_v_size;
|
|
|
|
/**
|
|
* @free_node:
|
|
*
|
|
* List used only by &drm_connector_list_iter to be able to clean up a
|
|
* connector from any context, in conjunction with
|
|
* &drm_mode_config.connector_free_work.
|
|
*/
|
|
struct llist_node free_node;
|
|
|
|
/** @hdr_sink_metadata: HDR Metadata Information read from sink */
|
|
struct hdr_sink_metadata hdr_sink_metadata;
|
|
};
|
|
|
|
#define obj_to_connector(x) container_of(x, struct drm_connector, base)
|
|
|
|
int drm_connector_init(struct drm_device *dev,
|
|
struct drm_connector *connector,
|
|
const struct drm_connector_funcs *funcs,
|
|
int connector_type);
|
|
int drm_connector_init_with_ddc(struct drm_device *dev,
|
|
struct drm_connector *connector,
|
|
const struct drm_connector_funcs *funcs,
|
|
int connector_type,
|
|
struct i2c_adapter *ddc);
|
|
void drm_connector_attach_edid_property(struct drm_connector *connector);
|
|
int drm_connector_register(struct drm_connector *connector);
|
|
void drm_connector_unregister(struct drm_connector *connector);
|
|
int drm_connector_attach_encoder(struct drm_connector *connector,
|
|
struct drm_encoder *encoder);
|
|
|
|
void drm_connector_cleanup(struct drm_connector *connector);
|
|
|
|
static inline unsigned int drm_connector_index(const struct drm_connector *connector)
|
|
{
|
|
return connector->index;
|
|
}
|
|
|
|
static inline u32 drm_connector_mask(const struct drm_connector *connector)
|
|
{
|
|
return 1 << connector->index;
|
|
}
|
|
|
|
/**
|
|
* drm_connector_lookup - lookup connector object
|
|
* @dev: DRM device
|
|
* @file_priv: drm file to check for lease against.
|
|
* @id: connector object id
|
|
*
|
|
* This function looks up the connector object specified by id
|
|
* add takes a reference to it.
|
|
*/
|
|
static inline struct drm_connector *drm_connector_lookup(struct drm_device *dev,
|
|
struct drm_file *file_priv,
|
|
uint32_t id)
|
|
{
|
|
struct drm_mode_object *mo;
|
|
mo = drm_mode_object_find(dev, file_priv, id, DRM_MODE_OBJECT_CONNECTOR);
|
|
return mo ? obj_to_connector(mo) : NULL;
|
|
}
|
|
|
|
/**
|
|
* drm_connector_get - acquire a connector reference
|
|
* @connector: DRM connector
|
|
*
|
|
* This function increments the connector's refcount.
|
|
*/
|
|
static inline void drm_connector_get(struct drm_connector *connector)
|
|
{
|
|
drm_mode_object_get(&connector->base);
|
|
}
|
|
|
|
/**
|
|
* drm_connector_put - release a connector reference
|
|
* @connector: DRM connector
|
|
*
|
|
* This function decrements the connector's reference count and frees the
|
|
* object if the reference count drops to zero.
|
|
*/
|
|
static inline void drm_connector_put(struct drm_connector *connector)
|
|
{
|
|
drm_mode_object_put(&connector->base);
|
|
}
|
|
|
|
/**
|
|
* drm_connector_is_unregistered - has the connector been unregistered from
|
|
* userspace?
|
|
* @connector: DRM connector
|
|
*
|
|
* Checks whether or not @connector has been unregistered from userspace.
|
|
*
|
|
* Returns:
|
|
* True if the connector was unregistered, false if the connector is
|
|
* registered or has not yet been registered with userspace.
|
|
*/
|
|
static inline bool
|
|
drm_connector_is_unregistered(struct drm_connector *connector)
|
|
{
|
|
return READ_ONCE(connector->registration_state) ==
|
|
DRM_CONNECTOR_UNREGISTERED;
|
|
}
|
|
|
|
const char *drm_get_connector_type_name(unsigned int connector_type);
|
|
const char *drm_get_connector_status_name(enum drm_connector_status status);
|
|
const char *drm_get_subpixel_order_name(enum subpixel_order order);
|
|
const char *drm_get_dpms_name(int val);
|
|
const char *drm_get_dvi_i_subconnector_name(int val);
|
|
const char *drm_get_dvi_i_select_name(int val);
|
|
const char *drm_get_tv_subconnector_name(int val);
|
|
const char *drm_get_tv_select_name(int val);
|
|
const char *drm_get_dp_subconnector_name(int val);
|
|
const char *drm_get_content_protection_name(int val);
|
|
const char *drm_get_hdcp_content_type_name(int val);
|
|
|
|
int drm_mode_create_dvi_i_properties(struct drm_device *dev);
|
|
void drm_connector_attach_dp_subconnector_property(struct drm_connector *connector);
|
|
|
|
int drm_mode_create_tv_margin_properties(struct drm_device *dev);
|
|
int drm_mode_create_tv_properties(struct drm_device *dev,
|
|
unsigned int num_modes,
|
|
const char * const modes[]);
|
|
void drm_connector_attach_tv_margin_properties(struct drm_connector *conn);
|
|
int drm_mode_create_scaling_mode_property(struct drm_device *dev);
|
|
int drm_connector_attach_content_type_property(struct drm_connector *dev);
|
|
int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
|
|
u32 scaling_mode_mask);
|
|
int drm_connector_attach_vrr_capable_property(
|
|
struct drm_connector *connector);
|
|
int drm_connector_attach_colorspace_property(struct drm_connector *connector);
|
|
int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
|
|
bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
|
|
struct drm_connector_state *new_state);
|
|
int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
|
|
int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
|
|
int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
|
|
int drm_mode_create_content_type_property(struct drm_device *dev);
|
|
void drm_hdmi_avi_infoframe_content_type(struct hdmi_avi_infoframe *frame,
|
|
const struct drm_connector_state *conn_state);
|
|
|
|
int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
|
|
|
|
int drm_connector_set_path_property(struct drm_connector *connector,
|
|
const char *path);
|
|
int drm_connector_set_tile_property(struct drm_connector *connector);
|
|
int drm_connector_update_edid_property(struct drm_connector *connector,
|
|
const struct edid *edid);
|
|
void drm_connector_set_link_status_property(struct drm_connector *connector,
|
|
uint64_t link_status);
|
|
void drm_connector_set_vrr_capable_property(
|
|
struct drm_connector *connector, bool capable);
|
|
int drm_connector_set_panel_orientation(
|
|
struct drm_connector *connector,
|
|
enum drm_panel_orientation panel_orientation);
|
|
int drm_connector_set_panel_orientation_with_quirk(
|
|
struct drm_connector *connector,
|
|
enum drm_panel_orientation panel_orientation,
|
|
int width, int height);
|
|
int drm_connector_attach_max_bpc_property(struct drm_connector *connector,
|
|
int min, int max);
|
|
|
|
/**
|
|
* struct drm_tile_group - Tile group metadata
|
|
* @refcount: reference count
|
|
* @dev: DRM device
|
|
* @id: tile group id exposed to userspace
|
|
* @group_data: Sink-private data identifying this group
|
|
*
|
|
* @group_data corresponds to displayid vend/prod/serial for external screens
|
|
* with an EDID.
|
|
*/
|
|
struct drm_tile_group {
|
|
struct kref refcount;
|
|
struct drm_device *dev;
|
|
int id;
|
|
u8 group_data[8];
|
|
};
|
|
|
|
struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
|
|
const char topology[8]);
|
|
struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
|
|
const char topology[8]);
|
|
void drm_mode_put_tile_group(struct drm_device *dev,
|
|
struct drm_tile_group *tg);
|
|
|
|
/**
|
|
* struct drm_connector_list_iter - connector_list iterator
|
|
*
|
|
* This iterator tracks state needed to be able to walk the connector_list
|
|
* within struct drm_mode_config. Only use together with
|
|
* drm_connector_list_iter_begin(), drm_connector_list_iter_end() and
|
|
* drm_connector_list_iter_next() respectively the convenience macro
|
|
* drm_for_each_connector_iter().
|
|
*
|
|
* Note that the return value of drm_connector_list_iter_next() is only valid
|
|
* up to the next drm_connector_list_iter_next() or
|
|
* drm_connector_list_iter_end() call. If you want to use the connector later,
|
|
* then you need to grab your own reference first using drm_connector_get().
|
|
*/
|
|
struct drm_connector_list_iter {
|
|
/* private: */
|
|
struct drm_device *dev;
|
|
struct drm_connector *conn;
|
|
};
|
|
|
|
void drm_connector_list_iter_begin(struct drm_device *dev,
|
|
struct drm_connector_list_iter *iter);
|
|
struct drm_connector *
|
|
drm_connector_list_iter_next(struct drm_connector_list_iter *iter);
|
|
void drm_connector_list_iter_end(struct drm_connector_list_iter *iter);
|
|
|
|
bool drm_connector_has_possible_encoder(struct drm_connector *connector,
|
|
struct drm_encoder *encoder);
|
|
|
|
/**
|
|
* drm_for_each_connector_iter - connector_list iterator macro
|
|
* @connector: &struct drm_connector pointer used as cursor
|
|
* @iter: &struct drm_connector_list_iter
|
|
*
|
|
* Note that @connector is only valid within the list body, if you want to use
|
|
* @connector after calling drm_connector_list_iter_end() then you need to grab
|
|
* your own reference first using drm_connector_get().
|
|
*/
|
|
#define drm_for_each_connector_iter(connector, iter) \
|
|
while ((connector = drm_connector_list_iter_next(iter)))
|
|
|
|
/**
|
|
* drm_connector_for_each_possible_encoder - iterate connector's possible encoders
|
|
* @connector: &struct drm_connector pointer
|
|
* @encoder: &struct drm_encoder pointer used as cursor
|
|
*/
|
|
#define drm_connector_for_each_possible_encoder(connector, encoder) \
|
|
drm_for_each_encoder_mask(encoder, (connector)->dev, \
|
|
(connector)->possible_encoders)
|
|
|
|
#endif
|