![Grazvydas Ignotas](/assets/img/avatar_default.png)
There is no late_unregister(), it looks like the comment meant late_register(). Also fix a typo while at it. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1476032820-3275-1-git-send-email-notasas@gmail.com
779 lines
26 KiB
C
779 lines
26 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/ctype.h>
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#include <drm/drm_mode_object.h>
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#include <uapi/drm/drm_mode.h>
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struct drm_device;
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struct drm_connector_helper_funcs;
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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 edid;
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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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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_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
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* structure is meant to describe all the things at the other end of the cable.
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*
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* For sinks which provide an EDID this can be filled out by calling
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* drm_add_edid_modes().
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*/
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struct drm_display_info {
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/**
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* @name: Name of the display.
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*/
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char name[DRM_DISPLAY_INFO_LEN];
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/**
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* @width_mm: Physical width in mm.
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*/
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unsigned int width_mm;
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/**
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* @height_mm: Physical height in mm.
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*/
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unsigned int height_mm;
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/**
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* @pixel_clock: Maximum pixel clock supported by the sink, in units of
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* 100Hz. This mismatches the clok in &drm_display_mode (which is in
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* kHZ), because that's what the EDID uses as base unit.
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*/
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unsigned int pixel_clock;
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/**
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* @bpc: Maximum bits per color channel. Used by HDMI and DP outputs.
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*/
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unsigned int bpc;
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/**
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* @subpixel_order: Subpixel order of LCD panels.
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*/
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enum subpixel_order subpixel_order;
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#define DRM_COLOR_FORMAT_RGB444 (1<<0)
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#define DRM_COLOR_FORMAT_YCRCB444 (1<<1)
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#define DRM_COLOR_FORMAT_YCRCB422 (1<<2)
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/**
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* @color_formats: HDMI Color formats, selects between RGB and YCrCb
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* modes. Used DRM_COLOR_FORMAT\_ defines, which are _not_ the same ones
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* as used to describe the pixel format in framebuffers, and also don't
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* match the formats in @bus_formats which are shared with v4l.
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*/
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u32 color_formats;
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/**
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* @bus_formats: Pixel data format on the wire, somewhat redundant with
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* @color_formats. Array of size @num_bus_formats encoded using
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* MEDIA_BUS_FMT\_ defines shared with v4l and media drivers.
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*/
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const u32 *bus_formats;
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/**
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* @num_bus_formats: Size of @bus_formats array.
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*/
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unsigned int num_bus_formats;
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#define DRM_BUS_FLAG_DE_LOW (1<<0)
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#define DRM_BUS_FLAG_DE_HIGH (1<<1)
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/* drive data on pos. edge */
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#define DRM_BUS_FLAG_PIXDATA_POSEDGE (1<<2)
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/* drive data on neg. edge */
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#define DRM_BUS_FLAG_PIXDATA_NEGEDGE (1<<3)
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/**
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* @bus_flags: Additional information (like pixel signal polarity) for
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* the pixel data on the bus, using DRM_BUS_FLAGS\_ defines.
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*/
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u32 bus_flags;
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/**
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* @max_tmds_clock: Maximum TMDS clock rate supported by the
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* sink in kHz. 0 means undefined.
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*/
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int max_tmds_clock;
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/**
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* @dvi_dual: Dual-link DVI sink?
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*/
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bool dvi_dual;
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/**
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* @edid_hdmi_dc_modes: Mask of supported hdmi deep color modes. Even
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* more stuff redundant with @bus_formats.
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*/
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u8 edid_hdmi_dc_modes;
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/**
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* @cea_rev: CEA revision of the HDMI sink.
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*/
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u8 cea_rev;
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};
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int drm_display_info_set_bus_formats(struct drm_display_info *info,
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const u32 *formats,
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unsigned int num_formats);
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/**
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* struct drm_connector_state - mutable connector state
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* @connector: backpointer to the connector
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* @best_encoder: can be used by helpers and drivers to select the encoder
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* @state: backpointer to global drm_atomic_state
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*/
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struct drm_connector_state {
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struct drm_connector *connector;
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/**
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* @crtc: CRTC to connect connector to, NULL if disabled.
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*
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* Do not change this directly, use drm_atomic_set_crtc_for_connector()
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* instead.
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*/
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struct drm_crtc *crtc;
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struct drm_encoder *best_encoder;
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struct drm_atomic_state *state;
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};
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/**
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* struct drm_connector_funcs - control connectors on a given device
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*
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* Each CRTC may have one or more connectors attached to it. The functions
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* below allow the core DRM code to control connectors, enumerate available modes,
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* etc.
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*/
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struct drm_connector_funcs {
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/**
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* @dpms:
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*
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* Legacy entry point to set the per-connector DPMS state. Legacy DPMS
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* is exposed as a standard property on the connector, but diverted to
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* this callback in the drm core. Note that atomic drivers don't
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* implement the 4 level DPMS support on the connector any more, but
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* instead only have an on/off "ACTIVE" property on the CRTC object.
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*
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* Drivers implementing atomic modeset should use
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* drm_atomic_helper_connector_dpms() to implement this hook.
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*
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* RETURNS:
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*
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* 0 on success or a negative error code on failure.
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*/
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int (*dpms)(struct drm_connector *connector, int mode);
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/**
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* @reset:
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*
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* Reset connector hardware and software state to off. This function isn't
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* called by the core directly, only through drm_mode_config_reset().
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* It's not a helper hook only for historical reasons.
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*
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* Atomic drivers can use drm_atomic_helper_connector_reset() to reset
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* atomic state using this hook.
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*/
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void (*reset)(struct drm_connector *connector);
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/**
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* @detect:
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*
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* Check to see if anything is attached to the connector. The parameter
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* force is set to false whilst polling, true when checking the
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* connector due to a user request. force can be used by the driver to
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* avoid expensive, destructive operations during automated probing.
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*
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* FIXME:
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*
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* Note that this hook is only called by the probe helper. It's not in
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* the helper library vtable purely for historical reasons. The only DRM
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* core entry point to probe connector state is @fill_modes.
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*
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* RETURNS:
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*
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* drm_connector_status indicating the connector's status.
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*/
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enum drm_connector_status (*detect)(struct drm_connector *connector,
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bool force);
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/**
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* @force:
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*
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* This function is called to update internal encoder state when the
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* connector is forced to a certain state by userspace, either through
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* the sysfs interfaces or on the kernel cmdline. In that case the
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* @detect callback isn't called.
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*
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* FIXME:
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*
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* Note that this hook is only called by the probe helper. It's not in
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* the helper library vtable purely for historical reasons. The only DRM
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* core entry point to probe connector state is @fill_modes.
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*/
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void (*force)(struct drm_connector *connector);
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/**
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* @fill_modes:
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*
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* Entry point for output detection and basic mode validation. The
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* driver should reprobe the output if needed (e.g. when hotplug
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* handling is unreliable), add all detected modes to connector->modes
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* and filter out any the device can't support in any configuration. It
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* also needs to filter out any modes wider or higher than the
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* parameters max_width and max_height indicate.
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*
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* The drivers must also prune any modes no longer valid from
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* connector->modes. Furthermore it must update connector->status and
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* connector->edid. If no EDID has been received for this output
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* connector->edid must be NULL.
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*
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* Drivers using the probe helpers should use
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* drm_helper_probe_single_connector_modes() or
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* drm_helper_probe_single_connector_modes_nomerge() to implement this
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* function.
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*
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* RETURNS:
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*
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* The number of modes detected and filled into connector->modes.
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*/
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int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
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/**
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* @set_property:
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*
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* This is the legacy entry point to update a property attached to the
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* connector.
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*
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* Drivers implementing atomic modeset should use
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* drm_atomic_helper_connector_set_property() to implement this hook.
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*
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* This callback is optional if the driver does not support any legacy
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* driver-private properties.
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*
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* RETURNS:
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*
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* 0 on success or a negative error code on failure.
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*/
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int (*set_property)(struct drm_connector *connector, struct drm_property *property,
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uint64_t val);
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/**
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* @late_register:
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*
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* This optional hook can be used to register additional userspace
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* interfaces attached to the connector, light backlight control, i2c,
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* DP aux or similar interfaces. It is called late in the driver load
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* sequence from drm_connector_register() when registering all the
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* core drm connector interfaces. Everything added from this callback
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* should be unregistered in the early_unregister callback.
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*
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* Returns:
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*
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* 0 on success, or a negative error code on failure.
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*/
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int (*late_register)(struct drm_connector *connector);
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/**
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* @early_unregister:
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*
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* This optional hook should be used to unregister the additional
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* userspace interfaces attached to the connector from
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* late_register(). It is called from drm_connector_unregister(),
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* early in the driver unload sequence to disable userspace access
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* before data structures are torndown.
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*/
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void (*early_unregister)(struct drm_connector *connector);
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/**
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* @destroy:
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*
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* Clean up connector resources. This is called at driver unload time
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* through drm_mode_config_cleanup(). It can also be called at runtime
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* when a connector is being hot-unplugged for drivers that support
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* connector hotplugging (e.g. DisplayPort MST).
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*/
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void (*destroy)(struct drm_connector *connector);
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/**
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* @atomic_duplicate_state:
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*
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* Duplicate the current atomic state for this connector and return it.
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* The core and helpers guarantee that any atomic state duplicated with
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* this hook and still owned by the caller (i.e. not transferred to the
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* driver by calling ->atomic_commit() from struct
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* &drm_mode_config_funcs) will be cleaned up by calling the
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* @atomic_destroy_state hook in this structure.
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*
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* Atomic drivers which don't subclass struct &drm_connector_state should use
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* drm_atomic_helper_connector_duplicate_state(). Drivers that subclass the
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* state structure to extend it with driver-private state should use
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* __drm_atomic_helper_connector_duplicate_state() to make sure shared state is
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* duplicated in a consistent fashion across drivers.
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*
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* It is an error to call this hook before connector->state has been
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* initialized correctly.
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*
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* NOTE:
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*
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* If the duplicate state references refcounted resources this hook must
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* acquire a reference for each of them. The driver must release these
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* references again in @atomic_destroy_state.
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*
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* RETURNS:
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*
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* Duplicated atomic state or NULL when the allocation failed.
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*/
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struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector);
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/**
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* @atomic_destroy_state:
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*
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* Destroy a state duplicated with @atomic_duplicate_state and release
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* or unreference all resources it references
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*/
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void (*atomic_destroy_state)(struct drm_connector *connector,
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struct drm_connector_state *state);
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/**
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* @atomic_set_property:
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*
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* Decode a driver-private property value and store the decoded value
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* into the passed-in state structure. Since the atomic core decodes all
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* standardized properties (even for extensions beyond the core set of
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* properties which might not be implemented by all drivers) this
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* requires drivers to subclass the state structure.
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*
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* Such driver-private properties should really only be implemented for
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* truly hardware/vendor specific state. Instead it is preferred to
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* standardize atomic extension and decode the properties used to expose
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* such an extension in the core.
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*
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* Do not call this function directly, use
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* drm_atomic_connector_set_property() instead.
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*
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* This callback is optional if the driver does not support any
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* driver-private atomic properties.
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*
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* NOTE:
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*
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* This function is called in the state assembly phase of atomic
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* modesets, which can be aborted for any reason (including on
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* userspace's request to just check whether a configuration would be
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* possible). Drivers MUST NOT touch any persistent state (hardware or
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* software) or data structures except the passed in @state parameter.
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*
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* Also since userspace controls in which order properties are set this
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* function must not do any input validation (since the state update is
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* incomplete and hence likely inconsistent). Instead any such input
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* validation must be done in the various atomic_check callbacks.
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*
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* RETURNS:
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*
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* 0 if the property has been found, -EINVAL if the property isn't
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* implemented by the driver (which shouldn't ever happen, the core only
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* asks for properties attached to this connector). No other validation
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* is allowed by the driver. The core already checks that the property
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* value is within the range (integer, valid enum value, ...) the driver
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* set when registering the property.
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*/
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int (*atomic_set_property)(struct drm_connector *connector,
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struct drm_connector_state *state,
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struct drm_property *property,
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uint64_t val);
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/**
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* @atomic_get_property:
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*
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* Reads out the decoded driver-private property. This is used to
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* implement the GETCONNECTOR IOCTL.
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*
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* Do not call this function directly, use
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* drm_atomic_connector_get_property() instead.
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*
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* This callback is optional if the driver does not support any
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* driver-private atomic properties.
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*
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* RETURNS:
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*
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* 0 on success, -EINVAL if the property isn't implemented by the
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* driver (which shouldn't ever happen, the core only asks for
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* properties attached to this connector).
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*/
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int (*atomic_get_property)(struct drm_connector *connector,
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const struct drm_connector_state *state,
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struct drm_property *property,
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uint64_t *val);
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};
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/* mode specified on the command line */
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struct drm_cmdline_mode {
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bool specified;
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bool refresh_specified;
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bool bpp_specified;
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int xres, yres;
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int bpp;
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int refresh;
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bool rb;
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bool interlace;
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bool cvt;
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bool margins;
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enum drm_connector_force force;
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};
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/**
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* struct drm_connector - central DRM connector control structure
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* @dev: parent DRM device
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* @kdev: kernel device for sysfs attributes
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* @attr: sysfs attributes
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* @head: list management
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* @base: base KMS object
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* @name: human readable name, can be overwritten by the driver
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* @connector_type: one of the DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
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* @connector_type_id: index into connector type enum
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* @interlace_allowed: can this connector handle interlaced modes?
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* @doublescan_allowed: can this connector handle doublescan?
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|
* @stereo_allowed: can this connector handle stereo modes?
|
|
* @registered: is this connector exposed (registered) with userspace?
|
|
* @modes: modes available on this connector (from fill_modes() + user)
|
|
* @status: one of the drm_connector_status enums (connected, not, or unknown)
|
|
* @probed_modes: list of modes derived directly from the display
|
|
* @funcs: connector control functions
|
|
* @edid_blob_ptr: DRM property containing EDID if present
|
|
* @properties: property tracking for this connector
|
|
* @dpms: current dpms state
|
|
* @helper_private: mid-layer private data
|
|
* @cmdline_mode: mode line parsed from the kernel cmdline for this connector
|
|
* @force: a DRM_FORCE_<foo> state for forced mode sets
|
|
* @override_edid: has the EDID been overwritten through debugfs for testing?
|
|
* @encoder_ids: valid encoders for this connector
|
|
* @encoder: encoder driving this connector, if any
|
|
* @eld: EDID-like data, if present
|
|
* @latency_present: AV delay info from ELD, if found
|
|
* @video_latency: video latency info from ELD, if found
|
|
* @audio_latency: audio latency info from ELD, if found
|
|
* @null_edid_counter: track sinks that give us all zeros for the EDID
|
|
* @bad_edid_counter: track sinks that give us an EDID with invalid checksum
|
|
* @edid_corrupt: indicates whether the last read EDID was corrupt
|
|
* @debugfs_entry: debugfs directory for this connector
|
|
* @state: current atomic state for this connector
|
|
* @has_tile: is this connector connected to a tiled monitor
|
|
* @tile_group: tile group for the connected monitor
|
|
* @tile_is_single_monitor: whether the tile is one monitor housing
|
|
* @num_h_tile: number of horizontal tiles in the tile group
|
|
* @num_v_tile: number of vertical tiles in the tile group
|
|
* @tile_h_loc: horizontal location of this tile
|
|
* @tile_v_loc: vertical location of this tile
|
|
* @tile_h_size: horizontal size of this tile.
|
|
* @tile_v_size: vertical size of this tile.
|
|
*
|
|
* Each connector may be connected to one or more CRTCs, or may be clonable by
|
|
* another connector if they can share a CRTC. Each connector also has a specific
|
|
* position in the broader display (referred to as a 'screen' though it could
|
|
* span multiple monitors).
|
|
*/
|
|
struct drm_connector {
|
|
struct drm_device *dev;
|
|
struct device *kdev;
|
|
struct device_attribute *attr;
|
|
struct list_head head;
|
|
|
|
struct drm_mode_object base;
|
|
|
|
char *name;
|
|
|
|
/**
|
|
* @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;
|
|
|
|
int connector_type;
|
|
int connector_type_id;
|
|
bool interlace_allowed;
|
|
bool doublescan_allowed;
|
|
bool stereo_allowed;
|
|
bool registered;
|
|
struct list_head modes; /* list of modes on this connector */
|
|
|
|
enum drm_connector_status status;
|
|
|
|
/* these are modes added by probing with DDC or the BIOS */
|
|
struct list_head probed_modes;
|
|
|
|
/**
|
|
* @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
|
|
* display_info.width_mm and display_info.height_mm fields with the
|
|
* physical size of the display.
|
|
*/
|
|
struct drm_display_info display_info;
|
|
const struct drm_connector_funcs *funcs;
|
|
|
|
struct drm_property_blob *edid_blob_ptr;
|
|
struct drm_object_properties properties;
|
|
|
|
/**
|
|
* @path_blob_ptr:
|
|
*
|
|
* DRM blob property data for the DP MST path property.
|
|
*/
|
|
struct drm_property_blob *path_blob_ptr;
|
|
|
|
/**
|
|
* @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.
|
|
*/
|
|
struct drm_property_blob *tile_blob_ptr;
|
|
|
|
/* should we poll this connector for connects and disconnects */
|
|
/* hot plug detectable */
|
|
#define DRM_CONNECTOR_POLL_HPD (1 << 0)
|
|
/* poll for connections */
|
|
#define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
|
|
/* can cleanly poll for disconnections without flickering the screen */
|
|
/* DACs should rarely do this without a lot of testing */
|
|
#define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
|
|
|
|
/**
|
|
* @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.
|
|
*
|
|
* Set to 0 for connectors that don't support connection status
|
|
* discovery.
|
|
*/
|
|
uint8_t polled;
|
|
|
|
/* requested DPMS state */
|
|
int dpms;
|
|
|
|
const struct drm_connector_helper_funcs *helper_private;
|
|
|
|
/* forced on connector */
|
|
struct drm_cmdline_mode cmdline_mode;
|
|
enum drm_connector_force force;
|
|
bool override_edid;
|
|
|
|
#define DRM_CONNECTOR_MAX_ENCODER 3
|
|
uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
|
|
struct drm_encoder *encoder; /* currently active encoder */
|
|
|
|
#define MAX_ELD_BYTES 128
|
|
/* EDID bits */
|
|
uint8_t eld[MAX_ELD_BYTES];
|
|
bool latency_present[2];
|
|
int video_latency[2]; /* [0]: progressive, [1]: interlaced */
|
|
int audio_latency[2];
|
|
int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
|
|
unsigned bad_edid_counter;
|
|
|
|
/* Flag for raw EDID header corruption - used in Displayport
|
|
* compliance testing - * Displayport Link CTS Core 1.2 rev1.1 4.2.2.6
|
|
*/
|
|
bool edid_corrupt;
|
|
|
|
struct dentry *debugfs_entry;
|
|
|
|
struct drm_connector_state *state;
|
|
|
|
/* DisplayID bits */
|
|
bool has_tile;
|
|
struct drm_tile_group *tile_group;
|
|
bool tile_is_single_monitor;
|
|
|
|
uint8_t num_h_tile, num_v_tile;
|
|
uint8_t tile_h_loc, tile_v_loc;
|
|
uint16_t tile_h_size, tile_v_size;
|
|
};
|
|
|
|
#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_register(struct drm_connector *connector);
|
|
void drm_connector_unregister(struct drm_connector *connector);
|
|
int drm_mode_connector_attach_encoder(struct drm_connector *connector,
|
|
struct drm_encoder *encoder);
|
|
|
|
void drm_connector_cleanup(struct drm_connector *connector);
|
|
static inline unsigned drm_connector_index(struct drm_connector *connector)
|
|
{
|
|
return connector->index;
|
|
}
|
|
|
|
/**
|
|
* drm_connector_lookup - lookup connector object
|
|
* @dev: DRM device
|
|
* @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,
|
|
uint32_t id)
|
|
{
|
|
struct drm_mode_object *mo;
|
|
mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CONNECTOR);
|
|
return mo ? obj_to_connector(mo) : NULL;
|
|
}
|
|
|
|
/**
|
|
* drm_connector_reference - incr the connector refcnt
|
|
* @connector: connector
|
|
*
|
|
* This function increments the connector's refcount.
|
|
*/
|
|
static inline void drm_connector_reference(struct drm_connector *connector)
|
|
{
|
|
drm_mode_object_reference(&connector->base);
|
|
}
|
|
|
|
/**
|
|
* drm_connector_unreference - unref a connector
|
|
* @connector: connector to unref
|
|
*
|
|
* This function decrements the connector's refcount and frees it if it drops to zero.
|
|
*/
|
|
static inline void drm_connector_unreference(struct drm_connector *connector)
|
|
{
|
|
drm_mode_object_unreference(&connector->base);
|
|
}
|
|
|
|
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);
|
|
|
|
int drm_mode_create_dvi_i_properties(struct drm_device *dev);
|
|
int drm_mode_create_tv_properties(struct drm_device *dev,
|
|
unsigned int num_modes,
|
|
const char * const modes[]);
|
|
int drm_mode_create_scaling_mode_property(struct drm_device *dev);
|
|
int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
|
|
int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
|
|
|
|
int drm_mode_connector_set_path_property(struct drm_connector *connector,
|
|
const char *path);
|
|
int drm_mode_connector_set_tile_property(struct drm_connector *connector);
|
|
int drm_mode_connector_update_edid_property(struct drm_connector *connector,
|
|
const struct edid *edid);
|
|
|
|
/**
|
|
* drm_for_each_connector - iterate over all connectors
|
|
* @connector: the loop cursor
|
|
* @dev: the DRM device
|
|
*
|
|
* Iterate over all connectors of @dev.
|
|
*/
|
|
#define drm_for_each_connector(connector, dev) \
|
|
for (assert_drm_connector_list_read_locked(&(dev)->mode_config), \
|
|
connector = list_first_entry(&(dev)->mode_config.connector_list, \
|
|
struct drm_connector, head); \
|
|
&connector->head != (&(dev)->mode_config.connector_list); \
|
|
connector = list_next_entry(connector, head))
|
|
|
|
#endif
|