/* * Copyright (c) 2016 Intel Corporation * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that copyright * notice and this permission notice appear in supporting documentation, and * that the name of the copyright holders not be used in advertising or * publicity pertaining to distribution of the software without specific, * written prior permission. The copyright holders make no representations * about the suitability of this software for any purpose. It is provided "as * is" without express or implied warranty. * * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE * OF THIS SOFTWARE.
*/
enum drm_connector_force {
DRM_FORCE_UNSPECIFIED,
DRM_FORCE_OFF,
DRM_FORCE_ON, /* force on analog part normally */
DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
};
/** * enum drm_connector_status - status for a &drm_connector * * This enum is used to track the connector status. There are no separate * #defines for the uapi!
*/ enum drm_connector_status { /** * @connector_status_connected: The connector is definitely connected to * a sink device, and can be enabled.
*/
connector_status_connected = 1, /** * @connector_status_disconnected: The connector isn't connected to a * sink device which can be autodetect. For digital outputs like DP or * HDMI (which can be realiable probed) this means there's really * nothing there. It is driver-dependent whether a connector with this * status can be lit up or not.
*/
connector_status_disconnected = 2, /** * @connector_status_unknown: The connector's status could not be * reliably detected. This happens when probing would either cause * flicker (like load-detection when the connector is in use), or when a * hardware resource isn't available (like when load-detection needs a * free CRTC). It should be possible to light up the connector with one * of the listed fallback modes. For default configuration userspace * should only try to light up connectors with unknown status when * there's not connector with @connector_status_connected.
*/
connector_status_unknown = 3,
};
/** * enum drm_connector_registration_state - userspace registration status for * a &drm_connector * * This enum is used to track the status of initializing a connector and * registering it with userspace, so that DRM can prevent bogus modesets on * connectors that no longer exist.
*/ enum drm_connector_registration_state { /** * @DRM_CONNECTOR_INITIALIZING: The connector has just been created, * but has yet to be exposed to userspace. There should be no * additional restrictions to how the state of this connector may be * modified.
*/
DRM_CONNECTOR_INITIALIZING = 0,
/** * @DRM_CONNECTOR_REGISTERED: The connector has been fully initialized * and registered with sysfs, as such it has been exposed to * userspace. There should be no additional restrictions to how the * state of this connector may be modified.
*/
DRM_CONNECTOR_REGISTERED = 1,
/** * @DRM_CONNECTOR_UNREGISTERED: The connector has either been exposed * to userspace and has since been unregistered and removed from * userspace, or the connector was unregistered before it had a chance * to be exposed to userspace (e.g. still in the * @DRM_CONNECTOR_INITIALIZING state). When a connector is * unregistered, there are additional restrictions to how its state * may be modified: * * - An unregistered connector may only have its DPMS changed from * On->Off. Once DPMS is changed to Off, it may not be switched back * to On. * - Modesets are not allowed on unregistered connectors, unless they * would result in disabling its assigned CRTCs. This means * disabling a CRTC on an unregistered connector is OK, but enabling * one is not. * - Removing a CRTC from an unregistered connector is OK, but new * CRTCs may never be assigned to an unregistered connector.
*/
DRM_CONNECTOR_UNREGISTERED = 2,
};
/** * enum drm_connector_tv_mode - Analog TV output mode * * This enum is used to indicate the TV output mode used on an analog TV * connector. * * WARNING: The values of this enum is uABI since they're exposed in the * "TV mode" connector property.
*/ enum drm_connector_tv_mode { /** * @DRM_MODE_TV_MODE_NTSC: CCIR System M (aka 525-lines) * together with the NTSC Color Encoding.
*/
DRM_MODE_TV_MODE_NTSC,
/** * @DRM_MODE_TV_MODE_NTSC_443: Variant of * @DRM_MODE_TV_MODE_NTSC. Uses a color subcarrier frequency * of 4.43 MHz.
*/
DRM_MODE_TV_MODE_NTSC_443,
/** * @DRM_MODE_TV_MODE_NTSC_J: Variant of @DRM_MODE_TV_MODE_NTSC * used in Japan. Uses a black level equals to the blanking * level.
*/
DRM_MODE_TV_MODE_NTSC_J,
/** * @DRM_MODE_TV_MODE_PAL: CCIR System B together with the PAL * color system.
*/
DRM_MODE_TV_MODE_PAL,
/** * @DRM_MODE_TV_MODE_PAL_M: CCIR System M (aka 525-lines) * together with the PAL color encoding
*/
DRM_MODE_TV_MODE_PAL_M,
/** * @DRM_MODE_TV_MODE_PAL_N: CCIR System N together with the PAL * color encoding. It uses 625 lines, but has a color subcarrier * frequency of 3.58MHz, the SECAM color space, and narrower * channels compared to most of the other PAL variants.
*/
DRM_MODE_TV_MODE_PAL_N,
/** * @DRM_MODE_TV_MODE_SECAM: CCIR System B together with the * SECAM color system.
*/
DRM_MODE_TV_MODE_SECAM,
/** * @DRM_MODE_TV_MODE_MONOCHROME: Use timings appropriate to * the DRM mode, including equalizing pulses for a 525-line * or 625-line mode, with no pedestal or color encoding.
*/
DRM_MODE_TV_MODE_MONOCHROME,
/** * @DRM_MODE_TV_MODE_MAX: Number of analog TV output modes. * * Internal implementation detail; this is not uABI.
*/
DRM_MODE_TV_MODE_MAX,
};
/* * struct drm_scdc - Information about scdc capabilities of a HDMI 2.0 sink * * Provides SCDC register support and capabilities related information on a * HDMI 2.0 sink. In case of a HDMI 1.4 sink, all parameter must be 0.
*/ struct drm_scdc { /** * @supported: status control & data channel present.
*/ bool supported; /** * @read_request: sink is capable of generating scdc read request.
*/ bool read_request; /** * @scrambling: sink's scrambling capabilities
*/ struct drm_scrambling scrambling;
};
/** * struct drm_hdmi_dsc_cap - DSC capabilities of HDMI sink * * Describes the DSC support provided by HDMI 2.1 sink. * The information is fetched fom additional HFVSDB blocks defined * for HDMI 2.1.
*/ struct drm_hdmi_dsc_cap { /** @v_1p2: flag for dsc1.2 version support by sink */ bool v_1p2;
/** @native_420: Does sink support DSC with 4:2:0 compression */ bool native_420;
/** * @all_bpp: Does sink support all bpp with 4:4:4: or 4:2:2 * compressed formats
*/ bool all_bpp;
/** * @bpc_supported: compressed bpc supported by sink : 10, 12 or 16 bpc
*/
u8 bpc_supported;
/** @max_slices: maximum number of Horizontal slices supported by */
u8 max_slices;
/** @clk_per_slice : max pixel clock in MHz supported per slice */ int clk_per_slice;
/** @max_lanes : dsc max lanes supported for Fixed rate Link training */
u8 max_lanes;
/** @max_frl_rate_per_lane : maximum frl rate with DSC per lane */
u8 max_frl_rate_per_lane;
/** @total_chunk_kbytes: max size of chunks in KBs supported per line*/
u8 total_chunk_kbytes;
};
/** * struct drm_hdmi_info - runtime information about the connected HDMI sink * * Describes if a given display supports advanced HDMI 2.0 features. * This information is available in CEA-861-F extension blocks (like HF-VSDB).
*/ struct drm_hdmi_info { /** @scdc: sink's scdc support and capabilities */ struct drm_scdc scdc;
/** * @y420_vdb_modes: bitmap of modes which can support ycbcr420 * output only (not normal RGB/YCBCR444/422 outputs). The max VIC * defined by the CEA-861-G spec is 219, so the size is 256 bits to map * up to 256 VICs.
*/ unsignedlong y420_vdb_modes[BITS_TO_LONGS(256)];
/** * @y420_cmdb_modes: bitmap of modes which can support ycbcr420 * output also, along with normal HDMI outputs. The max VIC defined by * the CEA-861-G spec is 219, so the size is 256 bits to map up to 256 * VICs.
*/ unsignedlong y420_cmdb_modes[BITS_TO_LONGS(256)];
/** @y420_dc_modes: bitmap of deep color support index */
u8 y420_dc_modes;
/** @max_frl_rate_per_lane: support fixed rate link */
u8 max_frl_rate_per_lane;
/** @max_lanes: supported by sink */
u8 max_lanes;
/** @dsc_cap: DSC capabilities of the sink */ struct drm_hdmi_dsc_cap dsc_cap;
};
/** * enum drm_link_status - connector's link_status property value * * This enum is used as the connector's link status property value. * It is set to the values defined in uapi. * * @DRM_LINK_STATUS_GOOD: DP Link is Good as a result of successful * link training * @DRM_LINK_STATUS_BAD: DP Link is BAD as a result of link training * failure
*/ enum drm_link_status {
DRM_LINK_STATUS_GOOD = DRM_MODE_LINK_STATUS_GOOD,
DRM_LINK_STATUS_BAD = DRM_MODE_LINK_STATUS_BAD,
};
/** * enum drm_panel_orientation - panel_orientation info for &drm_display_info * * This enum is used to track the (LCD) panel orientation. There are no * separate #defines for the uapi! * * @DRM_MODE_PANEL_ORIENTATION_UNKNOWN: The drm driver has not provided any * panel orientation information (normal * for non panels) in this case the "panel * orientation" connector prop will not be * attached. * @DRM_MODE_PANEL_ORIENTATION_NORMAL: The top side of the panel matches the * top side of the device's casing. * @DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP: The top side of the panel matches the * bottom side of the device's casing, iow * the panel is mounted upside-down. * @DRM_MODE_PANEL_ORIENTATION_LEFT_UP: The left side of the panel matches the * top side of the device's casing. * @DRM_MODE_PANEL_ORIENTATION_RIGHT_UP: The right side of the panel matches the * top side of the device's casing.
*/ enum drm_panel_orientation {
DRM_MODE_PANEL_ORIENTATION_UNKNOWN = -1,
DRM_MODE_PANEL_ORIENTATION_NORMAL = 0,
DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP,
DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
};
/** * enum drm_hdmi_broadcast_rgb - Broadcast RGB Selection for an HDMI @drm_connector
*/ enum drm_hdmi_broadcast_rgb { /** * @DRM_HDMI_BROADCAST_RGB_AUTO: The RGB range is selected * automatically based on the mode.
*/
DRM_HDMI_BROADCAST_RGB_AUTO,
/** * @DRM_HDMI_BROADCAST_RGB_FULL: Full range RGB is forced.
*/
DRM_HDMI_BROADCAST_RGB_FULL,
/** * @DRM_HDMI_BROADCAST_RGB_LIMITED: Limited range RGB is forced.
*/
DRM_HDMI_BROADCAST_RGB_LIMITED,
};
/** * struct drm_monitor_range_info - Panel's Monitor range in EDID for * &drm_display_info * * This struct is used to store a frequency range supported by panel * as parsed from EDID's detailed monitor range descriptor block. * * @min_vfreq: This is the min supported refresh rate in Hz from * EDID's detailed monitor range. * @max_vfreq: This is the max supported refresh rate in Hz from * EDID's detailed monitor range
*/ struct drm_monitor_range_info {
u16 min_vfreq;
u16 max_vfreq;
};
/** * struct drm_luminance_range_info - Panel's luminance range for * &drm_display_info. Calculated using data in EDID * * This struct is used to store a luminance range supported by panel * as calculated using data from EDID's static hdr metadata. * * @min_luminance: This is the min supported luminance value * * @max_luminance: This is the max supported luminance value
*/ struct drm_luminance_range_info {
u32 min_luminance;
u32 max_luminance;
};
/** * enum drm_privacy_screen_status - privacy screen status * * This enum is used to track and control the state of the integrated privacy * screen present on some display panels, via the "privacy-screen sw-state" * and "privacy-screen hw-state" properties. Note the _LOCKED enum values * are only valid for the "privacy-screen hw-state" property. * * @PRIVACY_SCREEN_DISABLED: * The privacy-screen on the panel is disabled * @PRIVACY_SCREEN_ENABLED: * The privacy-screen on the panel is enabled * @PRIVACY_SCREEN_DISABLED_LOCKED: * The privacy-screen on the panel is disabled and locked (cannot be changed) * @PRIVACY_SCREEN_ENABLED_LOCKED: * The privacy-screen on the panel is enabled and locked (cannot be changed)
*/ enum drm_privacy_screen_status {
PRIVACY_SCREEN_DISABLED = 0,
PRIVACY_SCREEN_ENABLED,
PRIVACY_SCREEN_DISABLED_LOCKED,
PRIVACY_SCREEN_ENABLED_LOCKED,
};
/** * enum drm_colorspace - color space * * This enum is a consolidated colorimetry list supported by HDMI and * DP protocol standard. The respective connectors will register * a property with the subset of this list (supported by that * respective protocol). Userspace will set the colorspace through * a colorspace property which will be created and exposed to * userspace. * * DP definitions come from the DP v2.0 spec * HDMI definitions come from the CTA-861-H spec * * @DRM_MODE_COLORIMETRY_DEFAULT: * Driver specific behavior. * @DRM_MODE_COLORIMETRY_NO_DATA: * Driver specific behavior. * @DRM_MODE_COLORIMETRY_SMPTE_170M_YCC: * (HDMI) * SMPTE ST 170M colorimetry format * @DRM_MODE_COLORIMETRY_BT709_YCC: * (HDMI, DP) * ITU-R BT.709 colorimetry format * @DRM_MODE_COLORIMETRY_XVYCC_601: * (HDMI, DP) * xvYCC601 colorimetry format * @DRM_MODE_COLORIMETRY_XVYCC_709: * (HDMI, DP) * xvYCC709 colorimetry format * @DRM_MODE_COLORIMETRY_SYCC_601: * (HDMI, DP) * sYCC601 colorimetry format * @DRM_MODE_COLORIMETRY_OPYCC_601: * (HDMI, DP) * opYCC601 colorimetry format * @DRM_MODE_COLORIMETRY_OPRGB: * (HDMI, DP) * opRGB colorimetry format * @DRM_MODE_COLORIMETRY_BT2020_CYCC: * (HDMI, DP) * ITU-R BT.2020 Y'c C'bc C'rc (constant luminance) colorimetry format * @DRM_MODE_COLORIMETRY_BT2020_RGB: * (HDMI, DP) * ITU-R BT.2020 R' G' B' colorimetry format * @DRM_MODE_COLORIMETRY_BT2020_YCC: * (HDMI, DP) * ITU-R BT.2020 Y' C'b C'r colorimetry format * @DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65: * (HDMI) * SMPTE ST 2113 P3D65 colorimetry format * @DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER: * (HDMI) * SMPTE ST 2113 P3DCI colorimetry format * @DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED: * (DP) * RGB wide gamut fixed point colorimetry format * @DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT: * (DP) * RGB wide gamut floating point * (scRGB (IEC 61966-2-2)) colorimetry format * @DRM_MODE_COLORIMETRY_BT601_YCC: * (DP) * ITU-R BT.601 colorimetry format * The DP spec does not say whether this is the 525 or the 625 * line version. * @DRM_MODE_COLORIMETRY_COUNT: * Not a valid value; merely used four counting
*/ enum drm_colorspace { /* For Default case, driver will set the colorspace */
DRM_MODE_COLORIMETRY_DEFAULT = 0, /* CEA 861 Normal Colorimetry options */
DRM_MODE_COLORIMETRY_NO_DATA = 0,
DRM_MODE_COLORIMETRY_SMPTE_170M_YCC = 1,
DRM_MODE_COLORIMETRY_BT709_YCC = 2, /* CEA 861 Extended Colorimetry Options */
DRM_MODE_COLORIMETRY_XVYCC_601 = 3,
DRM_MODE_COLORIMETRY_XVYCC_709 = 4,
DRM_MODE_COLORIMETRY_SYCC_601 = 5,
DRM_MODE_COLORIMETRY_OPYCC_601 = 6,
DRM_MODE_COLORIMETRY_OPRGB = 7,
DRM_MODE_COLORIMETRY_BT2020_CYCC = 8,
DRM_MODE_COLORIMETRY_BT2020_RGB = 9,
DRM_MODE_COLORIMETRY_BT2020_YCC = 10, /* Additional Colorimetry extension added as part of CTA 861.G */
DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65 = 11,
DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER = 12, /* Additional Colorimetry Options added for DP 1.4a VSC Colorimetry Format */
DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED = 13,
DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT = 14,
DRM_MODE_COLORIMETRY_BT601_YCC = 15,
DRM_MODE_COLORIMETRY_COUNT
};
/** * enum drm_bus_flags - bus_flags info for &drm_display_info * * This enum defines signal polarities and clock edge information for signals on * a bus as bitmask flags. * * The clock edge information is conveyed by two sets of symbols, * DRM_BUS_FLAGS_*_DRIVE_\* and DRM_BUS_FLAGS_*_SAMPLE_\*. When this enum is * used to describe a bus from the point of view of the transmitter, the * \*_DRIVE_\* flags should be used. When used from the point of view of the * receiver, the \*_SAMPLE_\* flags should be used. The \*_DRIVE_\* and * \*_SAMPLE_\* flags alias each other, with the \*_SAMPLE_POSEDGE and * \*_SAMPLE_NEGEDGE flags being equal to \*_DRIVE_NEGEDGE and \*_DRIVE_POSEDGE * respectively. This simplifies code as signals are usually sampled on the * opposite edge of the driving edge. Transmitters and receivers may however * need to take other signal timings into account to convert between driving * and sample edges.
*/ enum drm_bus_flags { /** * @DRM_BUS_FLAG_DE_LOW: * * The Data Enable signal is active low
*/
DRM_BUS_FLAG_DE_LOW = BIT(0),
/** * @DRM_BUS_FLAG_DE_HIGH: * * The Data Enable signal is active high
*/
DRM_BUS_FLAG_DE_HIGH = BIT(1),
/** * @DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE: * * Data is driven on the rising edge of the pixel clock
*/
DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE = BIT(2),
/** * @DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE: * * Data is driven on the falling edge of the pixel clock
*/
DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE = BIT(3),
/** * @DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE: * * Data is sampled on the rising edge of the pixel clock
*/
DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE = DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
/** * @DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE: * * Data is sampled on the falling edge of the pixel clock
*/
DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE = DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
/** * @DRM_BUS_FLAG_DATA_MSB_TO_LSB: * * Data is transmitted MSB to LSB on the bus
*/
DRM_BUS_FLAG_DATA_MSB_TO_LSB = BIT(4),
/** * @DRM_BUS_FLAG_DATA_LSB_TO_MSB: * * Data is transmitted LSB to MSB on the bus
*/
DRM_BUS_FLAG_DATA_LSB_TO_MSB = BIT(5),
/** * @DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE: * * Sync signals are driven on the rising edge of the pixel clock
*/
DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE = BIT(6),
/** * @DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE: * * Sync signals are driven on the falling edge of the pixel clock
*/
DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE = BIT(7),
/** * @DRM_BUS_FLAG_SYNC_SAMPLE_POSEDGE: * * Sync signals are sampled on the rising edge of the pixel clock
*/
DRM_BUS_FLAG_SYNC_SAMPLE_POSEDGE = DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE,
/** * @DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE: * * Sync signals are sampled on the falling edge of the pixel clock
*/
DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE = DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE,
/** * @DRM_BUS_FLAG_SHARP_SIGNALS: * * Set if the Sharp-specific signals (SPL, CLS, PS, REV) must be used
*/
DRM_BUS_FLAG_SHARP_SIGNALS = BIT(8),
};
/** * struct drm_display_info - runtime data about the connected sink * * Describes a given display (e.g. CRT or flat panel) and its limitations. For * fixed display sinks like built-in panels there's not much difference between * 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.
*/ unsignedint width_mm;
/** * @height_mm: Physical height in mm.
*/ unsignedint height_mm;
/** * @bpc: Maximum bits per color channel. Used by HDMI and DP outputs.
*/ unsignedint bpc;
/** * @subpixel_order: Subpixel order of LCD panels.
*/ enum subpixel_order subpixel_order;
/** * @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.
*/ unsignedint 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_audio: True if the sink supports audio. * * This field shall be used instead of calling * drm_detect_monitor_audio() when possible.
*/ bool has_audio;
/** * @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_rgb444_dc_modes: Mask of supported hdmi deep color modes * in RGB 4:4:4. Even more stuff redundant with @bus_formats.
*/
u8 edid_hdmi_rgb444_dc_modes;
/** * @edid_hdmi_ycbcr444_dc_modes: Mask of supported hdmi deep color * modes in YCbCr 4:4:4. Even more stuff redundant with @bus_formats.
*/
u8 edid_hdmi_ycbcr444_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;
/** * @hdr_sink_metadata: HDR Metadata Information read from sink
*/ struct hdr_sink_metadata hdr_sink_metadata;
/** * @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;
/** * @luminance_range: Luminance range supported by panel
*/ struct drm_luminance_range_info luminance_range;
/** * @mso_stream_count: eDP Multi-SST Operation (MSO) stream count from * the DisplayID VESA vendor block. 0 for conventional Single-Stream * Transport (SST), or 2 or 4 MSO streams.
*/
u8 mso_stream_count;
/** * @max_dsc_bpp: Maximum DSC target bitrate, if it is set to 0 the * monitor's default value is used instead.
*/
u32 max_dsc_bpp;
/** * @vics: Array of vics_len VICs. Internal to EDID parsing.
*/
u8 *vics;
/** * @vics_len: Number of elements in vics. Internal to EDID parsing.
*/ int vics_len;
/** * @quirks: EDID based quirks. DRM core and drivers can query the * @drm_edid_quirk quirks using drm_edid_has_quirk(), the rest of * the quirks also tracked here are internal to EDID parsing.
*/
u32 quirks;
/** * @source_physical_address: Source Physical Address from HDMI * Vendor-Specific Data Block, for CEC usage. * * Defaults to CEC_PHYS_ADDR_INVALID (0xffff).
*/
u16 source_physical_address;
};
int drm_display_info_set_bus_formats(struct drm_display_info *info, const u32 *formats, unsignedint 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.
*/ unsignedint bottom;
/** * @left: Left margin in pixels.
*/ unsignedint left;
/** * @right: Right margin in pixels.
*/ unsignedint right;
/** * @top: Top margin in pixels.
*/ unsignedint top;
};
/** * struct drm_tv_connector_state - TV connector related states * @select_subconnector: selected subconnector * @subconnector: detected subconnector * @margins: TV margins * @legacy_mode: Legacy TV mode, driver specific value * @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 select_subconnector; enum drm_mode_subconnector subconnector; struct drm_connector_tv_margins margins; unsignedint legacy_mode; unsignedint mode; unsignedint brightness; unsignedint contrast; unsignedint flicker_reduction; unsignedint overscan; unsignedint saturation; unsignedint hue;
};
/** * @is_limited_range: Is the output supposed to use a limited * RGB Quantization Range or not?
*/ bool is_limited_range;
/** * @output_bpc: Bits per color channel to output.
*/ unsignedint output_bpc;
/** * @output_format: Pixel format to output in.
*/ enum hdmi_colorspace output_format;
/** * @tmds_char_rate: TMDS Character Rate, in Hz.
*/ unsignedlonglong tmds_char_rate;
};
/** * 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.
*/ unsignedint content_type;
/** * @hdcp_content_type: Connector property to pass the type of * protected content. This is most commonly used for HDCP.
*/ unsignedint hdcp_content_type;
/** * @scaling_mode: Connector property to control the * upscaling, mostly used for built-in panels.
*/ unsignedint scaling_mode;
/** * @content_protection: Connector property to request content * protection. This is most commonly used for HDCP.
*/ unsignedint 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.
*/ enum drm_colorspace 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;
/** * @hdmi: HDMI-related variable and properties. Filled by * @drm_atomic_helper_connector_hdmi_check().
*/ struct drm_connector_hdmi_state hdmi;
};
struct drm_connector_hdmi_audio_funcs { /** * @startup: * * Called when ASoC starts an audio stream setup. The * @startup() is optional. * * Returns: * 0 on success, a negative error code otherwise
*/ int (*startup)(struct drm_connector *connector);
/** * @prepare: * Configures HDMI-encoder for audio stream. Can be called * multiple times for each setup. Mandatory. * * Returns: * 0 on success, a negative error code otherwise
*/ int (*prepare)(struct drm_connector *connector, struct hdmi_codec_daifmt *fmt, struct hdmi_codec_params *hparms);
/** * @shutdown: * * Shut down the audio stream. Mandatory. * * Returns: * 0 on success, a negative error code otherwise
*/ void (*shutdown)(struct drm_connector *connector);
/** * @mute_stream: * * Mute/unmute HDMI audio stream. The @mute_stream callback is * optional. * * Returns: * 0 on success, a negative error code otherwise
*/ int (*mute_stream)(struct drm_connector *connector, bool enable, int direction);
};
/** * struct drm_connector_cec_funcs - drm_hdmi_connector control functions
*/ struct drm_connector_cec_funcs { /** * @phys_addr_invalidate: mark CEC physical address as invalid * * The callback to mark CEC physical address as invalid, abstracting * the operation.
*/ void (*phys_addr_invalidate)(struct drm_connector *connector);
/** * @phys_addr_set: set CEC physical address * * The callback to set CEC physical address, abstracting the operation.
*/ void (*phys_addr_set)(struct drm_connector *connector, u16 addr);
};
/** * struct drm_connector_hdmi_funcs - drm_hdmi_connector control functions
*/ struct drm_connector_hdmi_funcs { /** * @tmds_char_rate_valid: * * This callback is invoked at atomic_check time to figure out * whether a particular TMDS character rate is supported by the * driver. * * The @tmds_char_rate_valid callback is optional. * * Returns: * * Either &drm_mode_status.MODE_OK or one of the failure reasons * in &enum drm_mode_status.
*/ enum drm_mode_status
(*tmds_char_rate_valid)(conststruct drm_connector *connector, conststruct drm_display_mode *mode, unsignedlonglong tmds_rate);
/** * @clear_infoframe: * * This callback is invoked through * @drm_atomic_helper_connector_hdmi_update_infoframes during a * commit to clear the infoframes into the hardware. It will be * called multiple times, once for every disabled infoframe * type. * * The @clear_infoframe callback is optional. * * Returns: * 0 on success, a negative error code otherwise
*/ int (*clear_infoframe)(struct drm_connector *connector, enum hdmi_infoframe_type type);
/** * @write_infoframe: * * This callback is invoked through * @drm_atomic_helper_connector_hdmi_update_infoframes during a * commit to program the infoframes into the hardware. It will * be called multiple times, once for every updated infoframe * type. * * The @write_infoframe callback is mandatory. * * Returns: * 0 on success, a negative error code otherwise
*/ int (*write_infoframe)(struct drm_connector *connector, enum hdmi_infoframe_type type, const u8 *buffer, size_t len);
/** * @read_edid: * * This callback is used by the framework as a replacement for reading * the EDID from connector->ddc. It is still recommended to provide * connector->ddc instead of implementing this callback. Returned EDID * should be freed via the drm_edid_free(). * * The @read_edid callback is optional. * * Returns: * Valid EDID on success, NULL in case of failure.
*/ conststruct drm_edid *(*read_edid)(struct drm_connector *connector);
};
/** * 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, conststruct 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, conststruct drm_connector_state *state);
/** * @oob_hotplug_event: * * This will get called when a hotplug-event for a drm-connector * has been received from a source outside the display driver / device.
*/ void (*oob_hotplug_event)(struct drm_connector *connector, enum drm_connector_status status);
/** * 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.
*/ unsignedint 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;
/** * @tv_mode: TV mode standard. See DRM_MODE_TV_MODE_*.
*/ enum drm_connector_tv_mode tv_mode;
/** * @tv_mode_specified: * * Did the mode have a preferred TV mode?
*/ bool tv_mode_specified;
};
/** * struct drm_connector_hdmi_audio - DRM gemeric HDMI Codec-related structure * * HDMI drivers usually incorporate a HDMI Codec. This structure expresses the * generic HDMI Codec as used by the DRM HDMI Codec framework.
*/ struct drm_connector_hdmi_audio { /** * @funcs: * * Implementation of the HDMI codec functionality to be used by the DRM * HDMI Codec framework.
*/ conststruct drm_connector_hdmi_audio_funcs *funcs;
/** * @codec_pdev: * * Platform device created to hold the HDMI Codec. It will be * automatically unregistered during drm_connector_cleanup().
*/ struct platform_device *codec_pdev;
/** * @lock: * * Mutex to protect @last_state, @plugged_cb and @plugged_cb_dev.
*/ struct mutex lock;
/** * @plugged_cb: * * Callback to be called when the HDMI sink get plugged to or unplugged * from this connector. This is assigned by the framework when * requested by the ASoC code.
*/ void (*plugged_cb)(struct device *dev, bool plugged);
/** * @plugged_cb_dev: * * The data for @plugged_cb(). It is being provided by the ASoC.
*/ struct device *plugged_cb_dev;
/** * @last_state: * * Last plugged state recored by the framework. It is used to correctly * report the state to @plugged_cb().
*/ bool last_state;
/** * @dai_port: * * The port in DT that is used for the Codec DAI.
*/ int dai_port;
};
/** * @infoframes: Current Infoframes output by the connector
*/ struct { /** * @lock: Mutex protecting against concurrent access to * the infoframes, most notably between KMS and ALSA.
*/ struct mutex lock;
/** * @audio: Current Audio Infoframes structure. Protected * by @lock.
*/ struct drm_connector_hdmi_infoframe audio;
} infoframes;
};
/** * struct drm_connector_cec - DRM Connector CEC-related structure
*/ struct drm_connector_cec { /** * @mutex: protects all fields in this structure.
*/ struct mutex mutex;
/** * @funcs: CEC Control Functions
*/ conststruct drm_connector_cec_funcs *funcs;
/** * @data: CEC implementation-specific data
*/ void *data;
};
/** * 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; /** * @fwnode: associated fwnode supplied by platform firmware * * Drivers can set this to associate a fwnode with a connector, drivers * are expected to get a reference on the fwnode when setting this. * drm_connector_cleanup() will call fwnode_handle_put() on this.
*/ struct fwnode_handle *fwnode;
/** * @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;
/** * @global_connector_list_entry: * * Connector entry in the global connector-list, used by * drm_connector_find_by_fwnode().
*/ struct list_head global_connector_list_entry;
/** @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 */ conststruct drm_connector_funcs *funcs;
/** * @edid_blob_ptr: DRM property containing EDID if present. Protected by * &drm_mode_config.mutex. * * This must be updated only by calling drm_edid_connector_update() or * drm_connector_update_edid_property(). * * This must not be used by drivers directly.
*/ 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: Maximum bits per color channel the connector supports.
*/ unsignedint max_bpc;
/** * @max_bpc_property: Default connector property for the max bpc to be * driven out of the connector.
*/ struct drm_property *max_bpc_property;
/** @privacy_screen: drm_privacy_screen for this connector, or NULL. */ struct drm_privacy_screen *privacy_screen;
/** * @privacy_screen_sw_state_property: Optional atomic property for the * connector to control the integrated privacy screen.
*/ struct drm_property *privacy_screen_sw_state_property;
/** * @privacy_screen_hw_state_property: Optional atomic property for the * connector to report the actual integrated privacy screen state.
*/ struct drm_property *privacy_screen_hw_state_property;
/** * @broadcast_rgb_property: Connector property to set the * Broadcast RGB selection to output with.
*/ struct drm_property *broadcast_rgb_property;
/** * @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 */ conststruct 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;
/** * @edid_override: Override EDID set via debugfs. * * Do not modify or access outside of the drm_edid_override_* family of * functions.
*/ conststruct drm_edid *edid_override;
/** @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, protected by @eld_mutex */
uint8_t eld[MAX_ELD_BYTES]; /** @eld_mutex: protection for concurrenct access to @eld */ struct mutex eld_mutex;
/** @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
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