diff options
Diffstat (limited to 'include/drm/drm_connector.h')
| -rw-r--r-- | include/drm/drm_connector.h | 63 |
1 files changed, 59 insertions, 4 deletions
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index bc88a5575792..f1576db6c044 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -84,28 +84,69 @@ enum subpixel_order { SubPixelNone, }; -/* - * Describes a given display (e.g. CRT or flat panel) and its limitations. +/** + * 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 { + /** + * @name: Name of the display. + */ char name[DRM_DISPLAY_INFO_LEN]; - /* Physical size */ + /** + * @width_mm: Physical width in mm. + */ unsigned int width_mm; + /** + * @height_mm: Physical height in mm. + */ unsigned int height_mm; + /** + * @pixel_clock: Maximum pixel clock supported by the sink, in units of + * 100Hz. This mismatches the clok in &drm_display_mode (which is in + * kHZ), because that's what the EDID uses as base unit. + */ unsigned int pixel_clock; + /** + * @bpc: Maximum bits per color channel. Used by HDMI and DP outputs. + */ unsigned int bpc; + /** + * @subpixel_order: Subpixel order of LCD panels. + */ enum subpixel_order subpixel_order; #define DRM_COLOR_FORMAT_RGB444 (1<<0) #define DRM_COLOR_FORMAT_YCRCB444 (1<<1) #define DRM_COLOR_FORMAT_YCRCB422 (1<<2) + /** + * @color_formats: HDMI Color formats, selects between RGB and YCrCb + * modes. Used DRM_COLOR_FORMAT\_ defines, which are _not_ the same ones + * as used to describe the pixel format in framebuffers, and also don't + * match the formats in @bus_formats which are shared with v4l. + */ u32 color_formats; + /** + * @bus_formats: Pixel data format on the wire, somewhat redundant with + * @color_formats. Array of size @num_bus_formats encoded using + * MEDIA_BUS_FMT\_ defines shared with v4l and media drivers. + */ const u32 *bus_formats; + /** + * @num_bus_formats: Size of @bus_formats array. + */ unsigned int num_bus_formats; #define DRM_BUS_FLAG_DE_LOW (1<<0) @@ -115,14 +156,28 @@ struct drm_display_info { /* drive data on neg. edge */ #define DRM_BUS_FLAG_PIXDATA_NEGEDGE (1<<3) + /** + * @bus_flags: Additional information (like pixel signal polarity) for + * the pixel data on the bus, using DRM_BUS_FLAGS\_ defines. + */ u32 bus_flags; - /* Mask of supported hdmi deep color modes */ + /** + * @edid_hdmi_dc_modes: Mask of supported hdmi deep color modes. Even + * more stuff redundant with @bus_formats. + */ u8 edid_hdmi_dc_modes; + /** + * @cea_rev: CEA revision of the HDMI sink. + */ u8 cea_rev; }; +int drm_display_info_set_bus_formats(struct drm_display_info *info, + const u32 *formats, + unsigned int num_formats); + /** * struct drm_connector_state - mutable connector state * @connector: backpointer to the connector |