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* Header for DRM modesetting interface.
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* \author Jakob Bornecrantz <wallbraker@gmail.com>
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* \par Acknowledgements:
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* Feb 2007, Dave Airlie <airlied@linux.ie>
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* Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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* Copyright (c) 2007-2008 Dave Airlie <airlied@linux.ie>
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* Copyright (c) 2007-2008 Jakob Bornecrantz <wallbraker@gmail.com>
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* This is the interface for modesetting for drm.
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* In order to use this interface you must include either <stdint.h> or another
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* header defining uint32_t, int32_t and uint16_t.
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* It aims to provide a randr1.2 compatible interface for modesettings in the
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* kernel, the interface is also ment to be used by libraries like EGL.
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* More information can be found in randrproto.txt which can be found here:
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* http://gitweb.freedesktop.org/?p=xorg/proto/randrproto.git
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* There are some major diffrences to be noted. Unlike the randr1.2 proto you
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* need to create the memory object of the framebuffer yourself with the ttm
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* buffer object interface. This object needs to be pinned.
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* If we pickup an old version of drm.h which doesn't include drm_mode.h
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* we should redefine defines. This is so that builds doesn't breaks with
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* new libdrm on old kernels.
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#define DRM_DISPLAY_INFO_LEN 32
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#define DRM_CONNECTOR_NAME_LEN 32
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#define DRM_DISPLAY_MODE_LEN 32
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#define DRM_PROP_NAME_LEN 32
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#define DRM_MODE_TYPE_BUILTIN (1<<0)
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#define DRM_MODE_TYPE_CLOCK_C ((1<<1) | DRM_MODE_TYPE_BUILTIN)
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#define DRM_MODE_TYPE_CRTC_C ((1<<2) | DRM_MODE_TYPE_BUILTIN)
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#define DRM_MODE_TYPE_PREFERRED (1<<3)
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#define DRM_MODE_TYPE_DEFAULT (1<<4)
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#define DRM_MODE_TYPE_USERDEF (1<<5)
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#define DRM_MODE_TYPE_DRIVER (1<<6)
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/* Video mode flags */
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/* bit compatible with the xorg definitions. */
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#define DRM_MODE_FLAG_PHSYNC (1<<0)
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#define DRM_MODE_FLAG_NHSYNC (1<<1)
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#define DRM_MODE_FLAG_PVSYNC (1<<2)
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#define DRM_MODE_FLAG_NVSYNC (1<<3)
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#define DRM_MODE_FLAG_INTERLACE (1<<4)
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#define DRM_MODE_FLAG_DBLSCAN (1<<5)
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#define DRM_MODE_FLAG_CSYNC (1<<6)
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#define DRM_MODE_FLAG_PCSYNC (1<<7)
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#define DRM_MODE_FLAG_NCSYNC (1<<8)
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#define DRM_MODE_FLAG_HSKEW (1<<9) /* hskew provided */
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#define DRM_MODE_FLAG_BCAST (1<<10)
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#define DRM_MODE_FLAG_PIXMUX (1<<11)
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#define DRM_MODE_FLAG_DBLCLK (1<<12)
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#define DRM_MODE_FLAG_CLKDIV2 (1<<13)
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/* bit compatible with the xorg definitions. */
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#define DRM_MODE_DPMS_ON 0
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#define DRM_MODE_DPMS_STANDBY 1
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#define DRM_MODE_DPMS_SUSPEND 2
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#define DRM_MODE_DPMS_OFF 3
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/* Scaling mode options */
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#define DRM_MODE_SCALE_NON_GPU 0
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#define DRM_MODE_SCALE_FULLSCREEN 1
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#define DRM_MODE_SCALE_NO_SCALE 2
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#define DRM_MODE_SCALE_ASPECT 3
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/* Dithering mode options */
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#define DRM_MODE_DITHERING_OFF 0
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#define DRM_MODE_DITHERING_ON 1
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#define DRM_MODE_ENCODER_NONE 0
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#define DRM_MODE_ENCODER_DAC 1
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#define DRM_MODE_ENCODER_TMDS 2
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#define DRM_MODE_ENCODER_LVDS 3
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#define DRM_MODE_ENCODER_TVDAC 4
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#define DRM_MODE_SUBCONNECTOR_Automatic 0
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#define DRM_MODE_SUBCONNECTOR_Unknown 0
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#define DRM_MODE_SUBCONNECTOR_DVID 3
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#define DRM_MODE_SUBCONNECTOR_DVIA 4
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#define DRM_MODE_SUBCONNECTOR_Composite 5
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#define DRM_MODE_SUBCONNECTOR_SVIDEO 6
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#define DRM_MODE_SUBCONNECTOR_Component 8
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#define DRM_MODE_CONNECTOR_Unknown 0
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#define DRM_MODE_CONNECTOR_VGA 1
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#define DRM_MODE_CONNECTOR_DVII 2
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#define DRM_MODE_CONNECTOR_DVID 3
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#define DRM_MODE_CONNECTOR_DVIA 4
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#define DRM_MODE_CONNECTOR_Composite 5
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#define DRM_MODE_CONNECTOR_SVIDEO 6
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#define DRM_MODE_CONNECTOR_LVDS 7
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#define DRM_MODE_CONNECTOR_Component 8
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#define DRM_MODE_CONNECTOR_9PinDIN 9
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#define DRM_MODE_CONNECTOR_DisplayPort 10
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#define DRM_MODE_CONNECTOR_HDMIA 11
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#define DRM_MODE_CONNECTOR_HDMIB 12
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#define DRM_MODE_PROP_PENDING (1<<0)
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#define DRM_MODE_PROP_RANGE (1<<1)
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#define DRM_MODE_PROP_IMMUTABLE (1<<2)
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#define DRM_MODE_PROP_ENUM (1<<3) /* enumerated type with text strings */
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#define DRM_MODE_PROP_BLOB (1<<4)
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#define DRM_MODE_CURSOR_BO (1<<0)
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#define DRM_MODE_CURSOR_MOVE (1<<1)
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#endif /* _DRM_MODE_H */
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typedef struct _drmModeRes {
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int count_connectors;
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uint32_t *connectors;
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uint32_t min_width, max_width;
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uint32_t min_height, max_height;
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} drmModeRes, *drmModeResPtr;
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typedef struct _drmModeModeInfo {
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uint16_t hdisplay, hsync_start, hsync_end, htotal, hskew;
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uint16_t vdisplay, vsync_start, vsync_end, vtotal, vscan;
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uint32_t vrefresh; /* vertical refresh * 1000 */
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char name[DRM_DISPLAY_MODE_LEN];
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} drmModeModeInfo, *drmModeModeInfoPtr;
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typedef struct _drmModeFB {
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uint32_t width, height;
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/* driver specific handle */
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} drmModeFB, *drmModeFBPtr;
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typedef struct _drmModePropertyBlob {
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} drmModePropertyBlobRes, *drmModePropertyBlobPtr;
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typedef struct _drmModeProperty {
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char name[DRM_PROP_NAME_LEN];
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uint64_t *values; // store the blob lengths
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struct drm_mode_property_enum *enums;
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uint32_t *blob_ids; // store the blob IDs
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} drmModePropertyRes, *drmModePropertyPtr;
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typedef struct _drmModeCrtc {
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uint32_t buffer_id; /**< FB id to connect to 0 = disconnect */
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uint32_t x, y; /**< Position on the framebuffer */
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uint32_t width, height;
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drmModeModeInfo mode;
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int gamma_size; /**< Number of gamma stops */
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} drmModeCrtc, *drmModeCrtcPtr;
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typedef struct _drmModeEncoder {
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uint32_t encoder_type;
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uint32_t possible_crtcs;
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uint32_t possible_clones;
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} drmModeEncoder, *drmModeEncoderPtr;
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DRM_MODE_CONNECTED = 1,
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DRM_MODE_DISCONNECTED = 2,
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DRM_MODE_UNKNOWNCONNECTION = 3
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DRM_MODE_SUBPIXEL_UNKNOWN = 1,
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DRM_MODE_SUBPIXEL_HORIZONTAL_RGB = 2,
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DRM_MODE_SUBPIXEL_HORIZONTAL_BGR = 3,
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DRM_MODE_SUBPIXEL_VERTICAL_RGB = 4,
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DRM_MODE_SUBPIXEL_VERTICAL_BGR = 5,
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DRM_MODE_SUBPIXEL_NONE = 6
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typedef struct _drmModeConnector {
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uint32_t connector_id;
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uint32_t encoder_id; /**< Encoder currently connected to */
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uint32_t connector_type;
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uint32_t connector_type_id;
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drmModeConnection connection;
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uint32_t mmWidth, mmHeight; /**< HxW in millimeters */
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drmModeSubPixel subpixel;
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drmModeModeInfoPtr modes;
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uint32_t *props; /**< List of property ids */
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uint64_t *prop_values; /**< List of property values */
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uint32_t *encoders; /**< List of encoder ids */
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} drmModeConnector, *drmModeConnectorPtr;
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extern void drmModeFreeModeInfo( drmModeModeInfoPtr ptr );
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extern void drmModeFreeResources( drmModeResPtr ptr );
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extern void drmModeFreeFB( drmModeFBPtr ptr );
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extern void drmModeFreeCrtc( drmModeCrtcPtr ptr );
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extern void drmModeFreeConnector( drmModeConnectorPtr ptr );
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extern void drmModeFreeEncoder( drmModeEncoderPtr ptr );
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* Retrives all of the resources associated with a card.
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extern drmModeResPtr drmModeGetResources(int fd);
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* FrameBuffer manipulation.
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* Retrive information about framebuffer bufferId
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extern drmModeFBPtr drmModeGetFB(int fd, uint32_t bufferId);
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* Creates a new framebuffer with an buffer object as its scanout buffer.
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extern int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth,
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uint8_t bpp, uint32_t pitch, uint32_t bo_handle,
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* Destroies the given framebuffer.
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extern int drmModeRmFB(int fd, uint32_t bufferId);
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* Retrive information about the ctrt crtcId
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extern drmModeCrtcPtr drmModeGetCrtc(int fd, uint32_t crtcId);
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* Set the mode on a crtc crtcId with the given mode modeId.
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int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
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uint32_t x, uint32_t y, uint32_t *connectors, int count,
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drmModeModeInfoPtr mode);
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* Set the cursor on crtc
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int drmModeSetCursor(int fd, uint32_t crtcId, uint32_t bo_handle, uint32_t width, uint32_t height);
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* Move the cursor on crtc
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int drmModeMoveCursor(int fd, uint32_t crtcId, int x, int y);
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drmModeEncoderPtr drmModeGetEncoder(int fd, uint32_t encoder_id);
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* Connector manipulation
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* Retrive information about the connector connectorId.
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extern drmModeConnectorPtr drmModeGetConnector(int fd,
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uint32_t connectorId);
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* Attaches the given mode to an connector.
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extern int drmModeAttachMode(int fd, uint32_t connectorId, drmModeModeInfoPtr mode_info);
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* Detaches a mode from the connector
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* must be unused, by the given mode.
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extern int drmModeDetachMode(int fd, uint32_t connectorId, drmModeModeInfoPtr mode_info);
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extern drmModePropertyPtr drmModeGetProperty(int fd, uint32_t propertyId);
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extern void drmModeFreeProperty(drmModePropertyPtr ptr);
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extern drmModePropertyBlobPtr drmModeGetPropertyBlob(int fd, uint32_t blob_id);
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extern void drmModeFreePropertyBlob(drmModePropertyBlobPtr ptr);
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extern int drmModeConnectorSetProperty(int fd, uint32_t connector_id, uint32_t property_id,
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extern int drmCheckModesettingSupported(const char *busid);
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extern int drmModeCrtcSetGamma(int fd, uint32_t crtc_id, uint32_t size,
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uint16_t *red, uint16_t *green, uint16_t *blue);
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extern int drmModeCrtcGetGamma(int fd, uint32_t crtc_id, uint32_t size,
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uint16_t *red, uint16_t *green, uint16_t *blue);
added
removed
libdrm/xf86drmMode.h
