3 * Header for DRM modesetting interface.
5 * \author Jakob Bornecrantz <wallbraker@gmail.com>
7 * \par Acknowledgements:
8 * Feb 2007, Dave Airlie <airlied@linux.ie>
12 * Copyright (c) <year> <copyright holders>
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38 * This is the interface for modesetting for drm.
40 * In order to use this interface you must include either <stdint.h> or another
41 * header defining uint32_t, int32_t and uint16_t.
43 * It aims to provide a randr1.2 compatible interface for modesettings in the
44 * kernel, the interface is also ment to be used by libraries like EGL.
46 * More information can be found in randrproto.txt which can be found here:
47 * http://gitweb.freedesktop.org/?p=xorg/proto/randrproto.git
49 * There are some major diffrences to be noted. Unlike the randr1.2 proto you
50 * need to create the memory object of the framebuffer yourself with the ttm
51 * buffer object interface. This object needs to be pinned.
55 typedef struct _drmModeRes {
66 uint32_t min_width, max_width;
67 uint32_t min_height, max_height;
68 } drmModeRes, *drmModeResPtr;
70 typedef struct drm_mode_fb_cmd drmModeFB, *drmModeFBPtr;
72 typedef struct _drmModePropertyBlob {
76 } drmModePropertyBlobRes, *drmModePropertyBlobPtr;
78 typedef struct _drmModeProperty {
81 char name[DRM_PROP_NAME_LEN];
83 uint64_t *values; // store the blob lengths
85 struct drm_mode_property_enum *enums;
87 uint32_t *blob_ids; // store the blob IDs
88 } drmModePropertyRes, *drmModePropertyPtr;
90 typedef struct _drmModeCrtc {
92 unsigned int buffer_id; /**< FB id to connect to 0 = disconnect*/
94 uint32_t x, y; /**< Position on the frameuffer */
95 uint32_t width, height;
97 struct drm_mode_modeinfo mode;
100 uint32_t outputs; /**< Outputs that are connected */
103 uint32_t possibles; /**< Outputs that can be connected */
105 int gamma_size; /**< Number of gamma stops */
107 } drmModeCrtc, *drmModeCrtcPtr;
110 DRM_MODE_CONNECTED = 1,
111 DRM_MODE_DISCONNECTED = 2,
112 DRM_MODE_UNKNOWNCONNECTION = 3
116 DRM_MODE_SUBPIXEL_UNKNOWN = 1,
117 DRM_MODE_SUBPIXEL_HORIZONTAL_RGB = 2,
118 DRM_MODE_SUBPIXEL_HORIZONTAL_BGR = 3,
119 DRM_MODE_SUBPIXEL_VERTICAL_RGB = 4,
120 DRM_MODE_SUBPIXEL_VERTICAL_BGR = 5,
121 DRM_MODE_SUBPIXEL_NONE = 6
124 typedef struct _drmModeOutput {
125 unsigned int output_id;
127 unsigned int crtc; /**< Crtc currently connected to */
128 unsigned int output_type;
129 unsigned int output_type_id;
130 drmModeConnection connection;
131 uint32_t mmWidth, mmHeight; /**< HxW in millimeters */
132 drmModeSubPixel subpixel;
135 uint32_t crtcs; /**< Possible crtc to connect to */
138 uint32_t clones; /**< Mask of clones */
141 struct drm_mode_modeinfo *modes;
144 uint32_t *props; /**< List of property ids */
145 uint64_t *prop_values; /**< List of property values */
147 } drmModeOutput, *drmModeOutputPtr;
151 extern void drmModeFreeModeInfo( struct drm_mode_modeinfo *ptr );
152 extern void drmModeFreeResources( drmModeResPtr ptr );
153 extern void drmModeFreeFB( drmModeFBPtr ptr );
154 extern void drmModeFreeCrtc( drmModeCrtcPtr ptr );
155 extern void drmModeFreeOutput( drmModeOutputPtr ptr );
158 * Retrives all of the resources associated with a card.
160 extern drmModeResPtr drmModeGetResources(int fd);
163 * Retrives the hotplug counter
165 extern uint32_t drmModeGetHotplug(int fd);
168 * FrameBuffer manipulation.
172 * Retrive information about framebuffer bufferId
174 extern drmModeFBPtr drmModeGetFB(int fd, uint32_t bufferId);
177 * Creates a new framebuffer with an buffer object as its scanout buffer.
179 extern int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth,
180 uint8_t bpp, uint32_t pitch, drmBO *bo,
183 * Destroies the given framebuffer.
185 extern int drmModeRmFB(int fd, uint32_t bufferId);
193 * Retrive information about the ctrt crtcId
195 extern drmModeCrtcPtr drmModeGetCrtc(int fd, uint32_t crtcId);
198 * Set the mode on a crtc crtcId with the given mode modeId.
200 int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
201 uint32_t x, uint32_t y, uint32_t *outputs, int count,
202 struct drm_mode_modeinfo *mode);
209 * Set the cursor on crtc
211 int drmModeSetCursor(int fd, uint32_t crtcId, drmBO *bo, uint32_t width, uint32_t height);
214 * Move the cursor on crtc
216 int drmModeMoveCursor(int fd, uint32_t crtcId, int x, int y);
219 * Output manipulation
223 * Retrive information about the output outputId.
225 extern drmModeOutputPtr drmModeGetOutput(int fd,
229 * Attaches the given mode to an output.
231 extern int drmModeAttachMode(int fd, uint32_t outputId, struct drm_mode_modeinfo *mode_info);
234 * Detaches a mode from the output
235 * must be unused, by the given mode.
237 extern int drmModeDetachMode(int fd, uint32_t outputId, struct drm_mode_modeinfo *mode_info);
239 extern drmModePropertyPtr drmModeGetProperty(int fd, uint32_t propertyId);
240 extern void drmModeFreeProperty(drmModePropertyPtr ptr);
242 extern drmModePropertyBlobPtr drmModeGetPropertyBlob(int fd, uint32_t blob_id);
243 extern void drmModeFreePropertyBlob(drmModePropertyBlobPtr ptr);
244 extern int drmModeOutputSetProperty(int fd, uint32_t output_id, uint32_t property_id,