1 /* 2 * Copyright © 2006 Keith Packard 3 * Copyright © 2007-2008 Dave Airlie 4 * Copyright © 2007-2008 Intel Corporation 5 * Jesse Barnes <jesse.barnes@intel.com> 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23 * OTHER DEALINGS IN THE SOFTWARE. 24 */ 25 #ifndef __DRM_CRTC_H__ 26 #define __DRM_CRTC_H__ 27 28 #include <linux/i2c.h> 29 #include <linux/spinlock.h> 30 #include <linux/types.h> 31 #include <linux/idr.h> 32 #include <linux/fb.h> 33 #include <linux/hdmi.h> 34 #include <linux/media-bus-format.h> 35 #include <uapi/drm/drm_mode.h> 36 #include <uapi/drm/drm_fourcc.h> 37 #include <drm/drm_modeset_lock.h> 38 39 struct drm_device; 40 struct drm_mode_set; 41 struct drm_framebuffer; 42 struct drm_object_properties; 43 struct drm_file; 44 struct drm_clip_rect; 45 struct device_node; 46 struct fence; 47 48 #define DRM_MODE_OBJECT_CRTC 0xcccccccc 49 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0 50 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0 51 #define DRM_MODE_OBJECT_MODE 0xdededede 52 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0 53 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb 54 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb 55 #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee 56 #define DRM_MODE_OBJECT_BRIDGE 0xbdbdbdbd 57 #define DRM_MODE_OBJECT_ANY 0 58 59 struct drm_mode_object { 60 uint32_t id; 61 uint32_t type; 62 struct drm_object_properties *properties; 63 }; 64 65 #define DRM_OBJECT_MAX_PROPERTY 24 66 struct drm_object_properties { 67 int count, atomic_count; 68 /* NOTE: if we ever start dynamically destroying properties (ie. 69 * not at drm_mode_config_cleanup() time), then we'd have to do 70 * a better job of detaching property from mode objects to avoid 71 * dangling property pointers: 72 */ 73 struct drm_property *properties[DRM_OBJECT_MAX_PROPERTY]; 74 /* do not read/write values directly, but use drm_object_property_get_value() 75 * and drm_object_property_set_value(): 76 */ 77 uint64_t values[DRM_OBJECT_MAX_PROPERTY]; 78 }; 79 80 static inline int64_t U642I64(uint64_t val) 81 { 82 return (int64_t)*((int64_t *)&val); 83 } 84 static inline uint64_t I642U64(int64_t val) 85 { 86 return (uint64_t)*((uint64_t *)&val); 87 } 88 89 /* rotation property bits */ 90 #define DRM_ROTATE_0 0 91 #define DRM_ROTATE_90 1 92 #define DRM_ROTATE_180 2 93 #define DRM_ROTATE_270 3 94 #define DRM_REFLECT_X 4 95 #define DRM_REFLECT_Y 5 96 97 enum drm_connector_force { 98 DRM_FORCE_UNSPECIFIED, 99 DRM_FORCE_OFF, 100 DRM_FORCE_ON, /* force on analog part normally */ 101 DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */ 102 }; 103 104 #include <drm/drm_modes.h> 105 106 enum drm_connector_status { 107 connector_status_connected = 1, 108 connector_status_disconnected = 2, 109 connector_status_unknown = 3, 110 }; 111 112 enum subpixel_order { 113 SubPixelUnknown = 0, 114 SubPixelHorizontalRGB, 115 SubPixelHorizontalBGR, 116 SubPixelVerticalRGB, 117 SubPixelVerticalBGR, 118 SubPixelNone, 119 }; 120 121 #define DRM_COLOR_FORMAT_RGB444 (1<<0) 122 #define DRM_COLOR_FORMAT_YCRCB444 (1<<1) 123 #define DRM_COLOR_FORMAT_YCRCB422 (1<<2) 124 /* 125 * Describes a given display (e.g. CRT or flat panel) and its limitations. 126 */ 127 struct drm_display_info { 128 char name[DRM_DISPLAY_INFO_LEN]; 129 130 /* Physical size */ 131 unsigned int width_mm; 132 unsigned int height_mm; 133 134 /* Clock limits FIXME: storage format */ 135 unsigned int min_vfreq, max_vfreq; 136 unsigned int min_hfreq, max_hfreq; 137 unsigned int pixel_clock; 138 unsigned int bpc; 139 140 enum subpixel_order subpixel_order; 141 u32 color_formats; 142 143 const u32 *bus_formats; 144 unsigned int num_bus_formats; 145 146 /* Mask of supported hdmi deep color modes */ 147 u8 edid_hdmi_dc_modes; 148 149 u8 cea_rev; 150 }; 151 152 /* data corresponds to displayid vend/prod/serial */ 153 struct drm_tile_group { 154 struct kref refcount; 155 struct drm_device *dev; 156 int id; 157 u8 group_data[8]; 158 }; 159 160 struct drm_framebuffer_funcs { 161 /* note: use drm_framebuffer_remove() */ 162 void (*destroy)(struct drm_framebuffer *framebuffer); 163 int (*create_handle)(struct drm_framebuffer *fb, 164 struct drm_file *file_priv, 165 unsigned int *handle); 166 /* 167 * Optional callback for the dirty fb ioctl. 168 * 169 * Userspace can notify the driver via this callback 170 * that a area of the framebuffer has changed and should 171 * be flushed to the display hardware. 172 * 173 * See documentation in drm_mode.h for the struct 174 * drm_mode_fb_dirty_cmd for more information as all 175 * the semantics and arguments have a one to one mapping 176 * on this function. 177 */ 178 int (*dirty)(struct drm_framebuffer *framebuffer, 179 struct drm_file *file_priv, unsigned flags, 180 unsigned color, struct drm_clip_rect *clips, 181 unsigned num_clips); 182 }; 183 184 struct drm_framebuffer { 185 struct drm_device *dev; 186 /* 187 * Note that the fb is refcounted for the benefit of driver internals, 188 * for example some hw, disabling a CRTC/plane is asynchronous, and 189 * scanout does not actually complete until the next vblank. So some 190 * cleanup (like releasing the reference(s) on the backing GEM bo(s)) 191 * should be deferred. In cases like this, the driver would like to 192 * hold a ref to the fb even though it has already been removed from 193 * userspace perspective. 194 */ 195 struct kref refcount; 196 /* 197 * Place on the dev->mode_config.fb_list, access protected by 198 * dev->mode_config.fb_lock. 199 */ 200 struct list_head head; 201 struct drm_mode_object base; 202 const struct drm_framebuffer_funcs *funcs; 203 unsigned int pitches[4]; 204 unsigned int offsets[4]; 205 unsigned int width; 206 unsigned int height; 207 /* depth can be 15 or 16 */ 208 unsigned int depth; 209 int bits_per_pixel; 210 int flags; 211 uint32_t pixel_format; /* fourcc format */ 212 struct list_head filp_head; 213 /* if you are using the helper */ 214 void *helper_private; 215 }; 216 217 struct drm_property_blob { 218 struct drm_mode_object base; 219 struct list_head head; 220 size_t length; 221 unsigned char data[]; 222 }; 223 224 struct drm_property_enum { 225 uint64_t value; 226 struct list_head head; 227 char name[DRM_PROP_NAME_LEN]; 228 }; 229 230 struct drm_property { 231 struct list_head head; 232 struct drm_mode_object base; 233 uint32_t flags; 234 char name[DRM_PROP_NAME_LEN]; 235 uint32_t num_values; 236 uint64_t *values; 237 struct drm_device *dev; 238 239 struct list_head enum_list; 240 }; 241 242 struct drm_crtc; 243 struct drm_connector; 244 struct drm_encoder; 245 struct drm_pending_vblank_event; 246 struct drm_plane; 247 struct drm_bridge; 248 struct drm_atomic_state; 249 250 /** 251 * struct drm_crtc_state - mutable CRTC state 252 * @crtc: backpointer to the CRTC 253 * @enable: whether the CRTC should be enabled, gates all other state 254 * @active: whether the CRTC is actively displaying (used for DPMS) 255 * @mode_changed: for use by helpers and drivers when computing state updates 256 * @active_changed: for use by helpers and drivers when computing state updates 257 * @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes 258 * @last_vblank_count: for helpers and drivers to capture the vblank of the 259 * update to ensure framebuffer cleanup isn't done too early 260 * @planes_changed: for use by helpers and drivers when computing state updates 261 * @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings 262 * @mode: current mode timings 263 * @event: optional pointer to a DRM event to signal upon completion of the 264 * state update 265 * @state: backpointer to global drm_atomic_state 266 * 267 * Note that the distinction between @enable and @active is rather subtile: 268 * Flipping @active while @enable is set without changing anything else may 269 * never return in a failure from the ->atomic_check callback. Userspace assumes 270 * that a DPMS On will always succeed. In other words: @enable controls resource 271 * assignment, @active controls the actual hardware state. 272 */ 273 struct drm_crtc_state { 274 struct drm_crtc *crtc; 275 276 bool enable; 277 bool active; 278 279 /* computed state bits used by helpers and drivers */ 280 bool planes_changed : 1; 281 bool mode_changed : 1; 282 bool active_changed : 1; 283 284 /* attached planes bitmask: 285 * WARNING: transitional helpers do not maintain plane_mask so 286 * drivers not converted over to atomic helpers should not rely 287 * on plane_mask being accurate! 288 */ 289 u32 plane_mask; 290 291 /* last_vblank_count: for vblank waits before cleanup */ 292 u32 last_vblank_count; 293 294 /* adjusted_mode: for use by helpers and drivers */ 295 struct drm_display_mode adjusted_mode; 296 297 struct drm_display_mode mode; 298 299 struct drm_pending_vblank_event *event; 300 301 struct drm_atomic_state *state; 302 }; 303 304 /** 305 * struct drm_crtc_funcs - control CRTCs for a given device 306 * @save: save CRTC state 307 * @restore: restore CRTC state 308 * @reset: reset CRTC after state has been invalidated (e.g. resume) 309 * @cursor_set: setup the cursor 310 * @cursor_set2: setup the cursor with hotspot, superseeds @cursor_set if set 311 * @cursor_move: move the cursor 312 * @gamma_set: specify color ramp for CRTC 313 * @destroy: deinit and free object 314 * @set_property: called when a property is changed 315 * @set_config: apply a new CRTC configuration 316 * @page_flip: initiate a page flip 317 * @atomic_duplicate_state: duplicate the atomic state for this CRTC 318 * @atomic_destroy_state: destroy an atomic state for this CRTC 319 * @atomic_set_property: set a property on an atomic state for this CRTC 320 * (do not call directly, use drm_atomic_crtc_set_property()) 321 * @atomic_get_property: get a property on an atomic state for this CRTC 322 * (do not call directly, use drm_atomic_crtc_get_property()) 323 * 324 * The drm_crtc_funcs structure is the central CRTC management structure 325 * in the DRM. Each CRTC controls one or more connectors (note that the name 326 * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc. 327 * connectors, not just CRTs). 328 * 329 * Each driver is responsible for filling out this structure at startup time, 330 * in addition to providing other modesetting features, like i2c and DDC 331 * bus accessors. 332 */ 333 struct drm_crtc_funcs { 334 /* Save CRTC state */ 335 void (*save)(struct drm_crtc *crtc); /* suspend? */ 336 /* Restore CRTC state */ 337 void (*restore)(struct drm_crtc *crtc); /* resume? */ 338 /* Reset CRTC state */ 339 void (*reset)(struct drm_crtc *crtc); 340 341 /* cursor controls */ 342 int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv, 343 uint32_t handle, uint32_t width, uint32_t height); 344 int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv, 345 uint32_t handle, uint32_t width, uint32_t height, 346 int32_t hot_x, int32_t hot_y); 347 int (*cursor_move)(struct drm_crtc *crtc, int x, int y); 348 349 /* Set gamma on the CRTC */ 350 void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b, 351 uint32_t start, uint32_t size); 352 /* Object destroy routine */ 353 void (*destroy)(struct drm_crtc *crtc); 354 355 int (*set_config)(struct drm_mode_set *set); 356 357 /* 358 * Flip to the given framebuffer. This implements the page 359 * flip ioctl described in drm_mode.h, specifically, the 360 * implementation must return immediately and block all 361 * rendering to the current fb until the flip has completed. 362 * If userspace set the event flag in the ioctl, the event 363 * argument will point to an event to send back when the flip 364 * completes, otherwise it will be NULL. 365 */ 366 int (*page_flip)(struct drm_crtc *crtc, 367 struct drm_framebuffer *fb, 368 struct drm_pending_vblank_event *event, 369 uint32_t flags); 370 371 int (*set_property)(struct drm_crtc *crtc, 372 struct drm_property *property, uint64_t val); 373 374 /* atomic update handling */ 375 struct drm_crtc_state *(*atomic_duplicate_state)(struct drm_crtc *crtc); 376 void (*atomic_destroy_state)(struct drm_crtc *crtc, 377 struct drm_crtc_state *state); 378 int (*atomic_set_property)(struct drm_crtc *crtc, 379 struct drm_crtc_state *state, 380 struct drm_property *property, 381 uint64_t val); 382 int (*atomic_get_property)(struct drm_crtc *crtc, 383 const struct drm_crtc_state *state, 384 struct drm_property *property, 385 uint64_t *val); 386 }; 387 388 /** 389 * struct drm_crtc - central CRTC control structure 390 * @dev: parent DRM device 391 * @port: OF node used by drm_of_find_possible_crtcs() 392 * @head: list management 393 * @mutex: per-CRTC locking 394 * @base: base KMS object for ID tracking etc. 395 * @primary: primary plane for this CRTC 396 * @cursor: cursor plane for this CRTC 397 * @cursor_x: current x position of the cursor, used for universal cursor planes 398 * @cursor_y: current y position of the cursor, used for universal cursor planes 399 * @enabled: is this CRTC enabled? 400 * @mode: current mode timings 401 * @hwmode: mode timings as programmed to hw regs 402 * @invert_dimensions: for purposes of error checking crtc vs fb sizes, 403 * invert the width/height of the crtc. This is used if the driver 404 * is performing 90 or 270 degree rotated scanout 405 * @x: x position on screen 406 * @y: y position on screen 407 * @funcs: CRTC control functions 408 * @gamma_size: size of gamma ramp 409 * @gamma_store: gamma ramp values 410 * @framedur_ns: precise frame timing 411 * @linedur_ns: precise line timing 412 * @pixeldur_ns: precise pixel timing 413 * @helper_private: mid-layer private data 414 * @properties: property tracking for this CRTC 415 * @state: current atomic state for this CRTC 416 * @acquire_ctx: per-CRTC implicit acquire context used by atomic drivers for 417 * legacy ioctls 418 * 419 * Each CRTC may have one or more connectors associated with it. This structure 420 * allows the CRTC to be controlled. 421 */ 422 struct drm_crtc { 423 struct drm_device *dev; 424 struct device_node *port; 425 struct list_head head; 426 427 /* 428 * crtc mutex 429 * 430 * This provides a read lock for the overall crtc state (mode, dpms 431 * state, ...) and a write lock for everything which can be update 432 * without a full modeset (fb, cursor data, ...) 433 */ 434 struct drm_modeset_lock mutex; 435 436 struct drm_mode_object base; 437 438 /* primary and cursor planes for CRTC */ 439 struct drm_plane *primary; 440 struct drm_plane *cursor; 441 442 /* position of cursor plane on crtc */ 443 int cursor_x; 444 int cursor_y; 445 446 bool enabled; 447 448 /* Requested mode from modesetting. */ 449 struct drm_display_mode mode; 450 451 /* Programmed mode in hw, after adjustments for encoders, 452 * crtc, panel scaling etc. Needed for timestamping etc. 453 */ 454 struct drm_display_mode hwmode; 455 456 bool invert_dimensions; 457 458 int x, y; 459 const struct drm_crtc_funcs *funcs; 460 461 /* CRTC gamma size for reporting to userspace */ 462 uint32_t gamma_size; 463 uint16_t *gamma_store; 464 465 /* Constants needed for precise vblank and swap timestamping. */ 466 int framedur_ns, linedur_ns, pixeldur_ns; 467 468 /* if you are using the helper */ 469 void *helper_private; 470 471 struct drm_object_properties properties; 472 473 struct drm_crtc_state *state; 474 475 /* 476 * For legacy crtc ioctls so that atomic drivers can get at the locking 477 * acquire context. 478 */ 479 struct drm_modeset_acquire_ctx *acquire_ctx; 480 }; 481 482 /** 483 * struct drm_connector_state - mutable connector state 484 * @connector: backpointer to the connector 485 * @crtc: CRTC to connect connector to, NULL if disabled 486 * @best_encoder: can be used by helpers and drivers to select the encoder 487 * @state: backpointer to global drm_atomic_state 488 */ 489 struct drm_connector_state { 490 struct drm_connector *connector; 491 492 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_connector() */ 493 494 struct drm_encoder *best_encoder; 495 496 struct drm_atomic_state *state; 497 }; 498 499 /** 500 * struct drm_connector_funcs - control connectors on a given device 501 * @dpms: set power state 502 * @save: save connector state 503 * @restore: restore connector state 504 * @reset: reset connector after state has been invalidated (e.g. resume) 505 * @detect: is this connector active? 506 * @fill_modes: fill mode list for this connector 507 * @set_property: property for this connector may need an update 508 * @destroy: make object go away 509 * @force: notify the driver that the connector is forced on 510 * @atomic_duplicate_state: duplicate the atomic state for this connector 511 * @atomic_destroy_state: destroy an atomic state for this connector 512 * @atomic_set_property: set a property on an atomic state for this connector 513 * (do not call directly, use drm_atomic_connector_set_property()) 514 * @atomic_get_property: get a property on an atomic state for this connector 515 * (do not call directly, use drm_atomic_connector_get_property()) 516 * 517 * Each CRTC may have one or more connectors attached to it. The functions 518 * below allow the core DRM code to control connectors, enumerate available modes, 519 * etc. 520 */ 521 struct drm_connector_funcs { 522 void (*dpms)(struct drm_connector *connector, int mode); 523 void (*save)(struct drm_connector *connector); 524 void (*restore)(struct drm_connector *connector); 525 void (*reset)(struct drm_connector *connector); 526 527 /* Check to see if anything is attached to the connector. 528 * @force is set to false whilst polling, true when checking the 529 * connector due to user request. @force can be used by the driver 530 * to avoid expensive, destructive operations during automated 531 * probing. 532 */ 533 enum drm_connector_status (*detect)(struct drm_connector *connector, 534 bool force); 535 int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height); 536 int (*set_property)(struct drm_connector *connector, struct drm_property *property, 537 uint64_t val); 538 void (*destroy)(struct drm_connector *connector); 539 void (*force)(struct drm_connector *connector); 540 541 /* atomic update handling */ 542 struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector); 543 void (*atomic_destroy_state)(struct drm_connector *connector, 544 struct drm_connector_state *state); 545 int (*atomic_set_property)(struct drm_connector *connector, 546 struct drm_connector_state *state, 547 struct drm_property *property, 548 uint64_t val); 549 int (*atomic_get_property)(struct drm_connector *connector, 550 const struct drm_connector_state *state, 551 struct drm_property *property, 552 uint64_t *val); 553 }; 554 555 /** 556 * struct drm_encoder_funcs - encoder controls 557 * @reset: reset state (e.g. at init or resume time) 558 * @destroy: cleanup and free associated data 559 * 560 * Encoders sit between CRTCs and connectors. 561 */ 562 struct drm_encoder_funcs { 563 void (*reset)(struct drm_encoder *encoder); 564 void (*destroy)(struct drm_encoder *encoder); 565 }; 566 567 #define DRM_CONNECTOR_MAX_ENCODER 3 568 569 /** 570 * struct drm_encoder - central DRM encoder structure 571 * @dev: parent DRM device 572 * @head: list management 573 * @base: base KMS object 574 * @name: encoder name 575 * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h 576 * @possible_crtcs: bitmask of potential CRTC bindings 577 * @possible_clones: bitmask of potential sibling encoders for cloning 578 * @crtc: currently bound CRTC 579 * @bridge: bridge associated to the encoder 580 * @funcs: control functions 581 * @helper_private: mid-layer private data 582 * 583 * CRTCs drive pixels to encoders, which convert them into signals 584 * appropriate for a given connector or set of connectors. 585 */ 586 struct drm_encoder { 587 struct drm_device *dev; 588 struct list_head head; 589 590 struct drm_mode_object base; 591 char *name; 592 int encoder_type; 593 uint32_t possible_crtcs; 594 uint32_t possible_clones; 595 596 struct drm_crtc *crtc; 597 struct drm_bridge *bridge; 598 const struct drm_encoder_funcs *funcs; 599 void *helper_private; 600 }; 601 602 /* should we poll this connector for connects and disconnects */ 603 /* hot plug detectable */ 604 #define DRM_CONNECTOR_POLL_HPD (1 << 0) 605 /* poll for connections */ 606 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1) 607 /* can cleanly poll for disconnections without flickering the screen */ 608 /* DACs should rarely do this without a lot of testing */ 609 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2) 610 611 #define MAX_ELD_BYTES 128 612 613 /** 614 * struct drm_connector - central DRM connector control structure 615 * @dev: parent DRM device 616 * @kdev: kernel device for sysfs attributes 617 * @attr: sysfs attributes 618 * @head: list management 619 * @base: base KMS object 620 * @name: connector name 621 * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h 622 * @connector_type_id: index into connector type enum 623 * @interlace_allowed: can this connector handle interlaced modes? 624 * @doublescan_allowed: can this connector handle doublescan? 625 * @stereo_allowed: can this connector handle stereo modes? 626 * @modes: modes available on this connector (from fill_modes() + user) 627 * @status: one of the drm_connector_status enums (connected, not, or unknown) 628 * @probed_modes: list of modes derived directly from the display 629 * @display_info: information about attached display (e.g. from EDID) 630 * @funcs: connector control functions 631 * @edid_blob_ptr: DRM property containing EDID if present 632 * @properties: property tracking for this connector 633 * @path_blob_ptr: DRM blob property data for the DP MST path property 634 * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling 635 * @dpms: current dpms state 636 * @helper_private: mid-layer private data 637 * @cmdline_mode: mode line parsed from the kernel cmdline for this connector 638 * @force: a %DRM_FORCE_<foo> state for forced mode sets 639 * @override_edid: has the EDID been overwritten through debugfs for testing? 640 * @encoder_ids: valid encoders for this connector 641 * @encoder: encoder driving this connector, if any 642 * @eld: EDID-like data, if present 643 * @dvi_dual: dual link DVI, if found 644 * @max_tmds_clock: max clock rate, if found 645 * @latency_present: AV delay info from ELD, if found 646 * @video_latency: video latency info from ELD, if found 647 * @audio_latency: audio latency info from ELD, if found 648 * @null_edid_counter: track sinks that give us all zeros for the EDID 649 * @bad_edid_counter: track sinks that give us an EDID with invalid checksum 650 * @debugfs_entry: debugfs directory for this connector 651 * @state: current atomic state for this connector 652 * @has_tile: is this connector connected to a tiled monitor 653 * @tile_group: tile group for the connected monitor 654 * @tile_is_single_monitor: whether the tile is one monitor housing 655 * @num_h_tile: number of horizontal tiles in the tile group 656 * @num_v_tile: number of vertical tiles in the tile group 657 * @tile_h_loc: horizontal location of this tile 658 * @tile_v_loc: vertical location of this tile 659 * @tile_h_size: horizontal size of this tile. 660 * @tile_v_size: vertical size of this tile. 661 * 662 * Each connector may be connected to one or more CRTCs, or may be clonable by 663 * another connector if they can share a CRTC. Each connector also has a specific 664 * position in the broader display (referred to as a 'screen' though it could 665 * span multiple monitors). 666 */ 667 struct drm_connector { 668 struct drm_device *dev; 669 struct device *kdev; 670 struct device_attribute *attr; 671 struct list_head head; 672 673 struct drm_mode_object base; 674 675 char *name; 676 int connector_type; 677 int connector_type_id; 678 bool interlace_allowed; 679 bool doublescan_allowed; 680 bool stereo_allowed; 681 struct list_head modes; /* list of modes on this connector */ 682 683 enum drm_connector_status status; 684 685 /* these are modes added by probing with DDC or the BIOS */ 686 struct list_head probed_modes; 687 688 struct drm_display_info display_info; 689 const struct drm_connector_funcs *funcs; 690 691 struct drm_property_blob *edid_blob_ptr; 692 struct drm_object_properties properties; 693 694 struct drm_property_blob *path_blob_ptr; 695 696 struct drm_property_blob *tile_blob_ptr; 697 698 uint8_t polled; /* DRM_CONNECTOR_POLL_* */ 699 700 /* requested DPMS state */ 701 int dpms; 702 703 void *helper_private; 704 705 /* forced on connector */ 706 struct drm_cmdline_mode cmdline_mode; 707 enum drm_connector_force force; 708 bool override_edid; 709 uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER]; 710 struct drm_encoder *encoder; /* currently active encoder */ 711 712 /* EDID bits */ 713 uint8_t eld[MAX_ELD_BYTES]; 714 bool dvi_dual; 715 int max_tmds_clock; /* in MHz */ 716 bool latency_present[2]; 717 int video_latency[2]; /* [0]: progressive, [1]: interlaced */ 718 int audio_latency[2]; 719 int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */ 720 unsigned bad_edid_counter; 721 722 struct dentry *debugfs_entry; 723 724 struct drm_connector_state *state; 725 726 /* DisplayID bits */ 727 bool has_tile; 728 struct drm_tile_group *tile_group; 729 bool tile_is_single_monitor; 730 731 uint8_t num_h_tile, num_v_tile; 732 uint8_t tile_h_loc, tile_v_loc; 733 uint16_t tile_h_size, tile_v_size; 734 }; 735 736 /** 737 * struct drm_plane_state - mutable plane state 738 * @plane: backpointer to the plane 739 * @crtc: currently bound CRTC, NULL if disabled 740 * @fb: currently bound framebuffer 741 * @fence: optional fence to wait for before scanning out @fb 742 * @crtc_x: left position of visible portion of plane on crtc 743 * @crtc_y: upper position of visible portion of plane on crtc 744 * @crtc_w: width of visible portion of plane on crtc 745 * @crtc_h: height of visible portion of plane on crtc 746 * @src_x: left position of visible portion of plane within 747 * plane (in 16.16) 748 * @src_y: upper position of visible portion of plane within 749 * plane (in 16.16) 750 * @src_w: width of visible portion of plane (in 16.16) 751 * @src_h: height of visible portion of plane (in 16.16) 752 * @state: backpointer to global drm_atomic_state 753 */ 754 struct drm_plane_state { 755 struct drm_plane *plane; 756 757 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_plane() */ 758 struct drm_framebuffer *fb; /* do not write directly, use drm_atomic_set_fb_for_plane() */ 759 struct fence *fence; 760 761 /* Signed dest location allows it to be partially off screen */ 762 int32_t crtc_x, crtc_y; 763 uint32_t crtc_w, crtc_h; 764 765 /* Source values are 16.16 fixed point */ 766 uint32_t src_x, src_y; 767 uint32_t src_h, src_w; 768 769 /* Plane rotation */ 770 unsigned int rotation; 771 772 struct drm_atomic_state *state; 773 }; 774 775 776 /** 777 * struct drm_plane_funcs - driver plane control functions 778 * @update_plane: update the plane configuration 779 * @disable_plane: shut down the plane 780 * @destroy: clean up plane resources 781 * @reset: reset plane after state has been invalidated (e.g. resume) 782 * @set_property: called when a property is changed 783 * @atomic_duplicate_state: duplicate the atomic state for this plane 784 * @atomic_destroy_state: destroy an atomic state for this plane 785 * @atomic_set_property: set a property on an atomic state for this plane 786 * (do not call directly, use drm_atomic_plane_set_property()) 787 * @atomic_get_property: get a property on an atomic state for this plane 788 * (do not call directly, use drm_atomic_plane_get_property()) 789 */ 790 struct drm_plane_funcs { 791 int (*update_plane)(struct drm_plane *plane, 792 struct drm_crtc *crtc, struct drm_framebuffer *fb, 793 int crtc_x, int crtc_y, 794 unsigned int crtc_w, unsigned int crtc_h, 795 uint32_t src_x, uint32_t src_y, 796 uint32_t src_w, uint32_t src_h); 797 int (*disable_plane)(struct drm_plane *plane); 798 void (*destroy)(struct drm_plane *plane); 799 void (*reset)(struct drm_plane *plane); 800 801 int (*set_property)(struct drm_plane *plane, 802 struct drm_property *property, uint64_t val); 803 804 /* atomic update handling */ 805 struct drm_plane_state *(*atomic_duplicate_state)(struct drm_plane *plane); 806 void (*atomic_destroy_state)(struct drm_plane *plane, 807 struct drm_plane_state *state); 808 int (*atomic_set_property)(struct drm_plane *plane, 809 struct drm_plane_state *state, 810 struct drm_property *property, 811 uint64_t val); 812 int (*atomic_get_property)(struct drm_plane *plane, 813 const struct drm_plane_state *state, 814 struct drm_property *property, 815 uint64_t *val); 816 }; 817 818 enum drm_plane_type { 819 DRM_PLANE_TYPE_OVERLAY, 820 DRM_PLANE_TYPE_PRIMARY, 821 DRM_PLANE_TYPE_CURSOR, 822 }; 823 824 /** 825 * struct drm_plane - central DRM plane control structure 826 * @dev: DRM device this plane belongs to 827 * @head: for list management 828 * @base: base mode object 829 * @possible_crtcs: pipes this plane can be bound to 830 * @format_types: array of formats supported by this plane 831 * @format_count: number of formats supported 832 * @crtc: currently bound CRTC 833 * @fb: currently bound fb 834 * @old_fb: Temporary tracking of the old fb while a modeset is ongoing. Used by 835 * drm_mode_set_config_internal() to implement correct refcounting. 836 * @funcs: helper functions 837 * @properties: property tracking for this plane 838 * @type: type of plane (overlay, primary, cursor) 839 * @state: current atomic state for this plane 840 */ 841 struct drm_plane { 842 struct drm_device *dev; 843 struct list_head head; 844 845 struct drm_modeset_lock mutex; 846 847 struct drm_mode_object base; 848 849 uint32_t possible_crtcs; 850 uint32_t *format_types; 851 uint32_t format_count; 852 853 struct drm_crtc *crtc; 854 struct drm_framebuffer *fb; 855 856 struct drm_framebuffer *old_fb; 857 858 const struct drm_plane_funcs *funcs; 859 860 struct drm_object_properties properties; 861 862 enum drm_plane_type type; 863 864 void *helper_private; 865 866 struct drm_plane_state *state; 867 }; 868 869 /** 870 * struct drm_bridge_funcs - drm_bridge control functions 871 * @attach: Called during drm_bridge_attach 872 * @mode_fixup: Try to fixup (or reject entirely) proposed mode for this bridge 873 * @disable: Called right before encoder prepare, disables the bridge 874 * @post_disable: Called right after encoder prepare, for lockstepped disable 875 * @mode_set: Set this mode to the bridge 876 * @pre_enable: Called right before encoder commit, for lockstepped commit 877 * @enable: Called right after encoder commit, enables the bridge 878 */ 879 struct drm_bridge_funcs { 880 int (*attach)(struct drm_bridge *bridge); 881 bool (*mode_fixup)(struct drm_bridge *bridge, 882 const struct drm_display_mode *mode, 883 struct drm_display_mode *adjusted_mode); 884 void (*disable)(struct drm_bridge *bridge); 885 void (*post_disable)(struct drm_bridge *bridge); 886 void (*mode_set)(struct drm_bridge *bridge, 887 struct drm_display_mode *mode, 888 struct drm_display_mode *adjusted_mode); 889 void (*pre_enable)(struct drm_bridge *bridge); 890 void (*enable)(struct drm_bridge *bridge); 891 }; 892 893 /** 894 * struct drm_bridge - central DRM bridge control structure 895 * @dev: DRM device this bridge belongs to 896 * @of_node: device node pointer to the bridge 897 * @list: to keep track of all added bridges 898 * @base: base mode object 899 * @funcs: control functions 900 * @driver_private: pointer to the bridge driver's internal context 901 */ 902 struct drm_bridge { 903 struct drm_device *dev; 904 struct drm_encoder *encoder; 905 #ifdef CONFIG_OF 906 struct device_node *of_node; 907 #endif 908 struct list_head list; 909 910 const struct drm_bridge_funcs *funcs; 911 void *driver_private; 912 }; 913 914 /** 915 * struct struct drm_atomic_state - the global state object for atomic updates 916 * @dev: parent DRM device 917 * @allow_modeset: allow full modeset 918 * @legacy_cursor_update: hint to enforce legacy cursor ioctl semantics 919 * @planes: pointer to array of plane pointers 920 * @plane_states: pointer to array of plane states pointers 921 * @crtcs: pointer to array of CRTC pointers 922 * @crtc_states: pointer to array of CRTC states pointers 923 * @num_connector: size of the @connectors and @connector_states arrays 924 * @connectors: pointer to array of connector pointers 925 * @connector_states: pointer to array of connector states pointers 926 * @acquire_ctx: acquire context for this atomic modeset state update 927 */ 928 struct drm_atomic_state { 929 struct drm_device *dev; 930 bool allow_modeset : 1; 931 bool legacy_cursor_update : 1; 932 struct drm_plane **planes; 933 struct drm_plane_state **plane_states; 934 struct drm_crtc **crtcs; 935 struct drm_crtc_state **crtc_states; 936 int num_connector; 937 struct drm_connector **connectors; 938 struct drm_connector_state **connector_states; 939 940 struct drm_modeset_acquire_ctx *acquire_ctx; 941 }; 942 943 944 /** 945 * struct drm_mode_set - new values for a CRTC config change 946 * @fb: framebuffer to use for new config 947 * @crtc: CRTC whose configuration we're about to change 948 * @mode: mode timings to use 949 * @x: position of this CRTC relative to @fb 950 * @y: position of this CRTC relative to @fb 951 * @connectors: array of connectors to drive with this CRTC if possible 952 * @num_connectors: size of @connectors array 953 * 954 * Represents a single crtc the connectors that it drives with what mode 955 * and from which framebuffer it scans out from. 956 * 957 * This is used to set modes. 958 */ 959 struct drm_mode_set { 960 struct drm_framebuffer *fb; 961 struct drm_crtc *crtc; 962 struct drm_display_mode *mode; 963 964 uint32_t x; 965 uint32_t y; 966 967 struct drm_connector **connectors; 968 size_t num_connectors; 969 }; 970 971 /** 972 * struct drm_mode_config_funcs - basic driver provided mode setting functions 973 * @fb_create: create a new framebuffer object 974 * @output_poll_changed: function to handle output configuration changes 975 * @atomic_check: check whether a give atomic state update is possible 976 * @atomic_commit: commit an atomic state update previously verified with 977 * atomic_check() 978 * 979 * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that 980 * involve drivers. 981 */ 982 struct drm_mode_config_funcs { 983 struct drm_framebuffer *(*fb_create)(struct drm_device *dev, 984 struct drm_file *file_priv, 985 struct drm_mode_fb_cmd2 *mode_cmd); 986 void (*output_poll_changed)(struct drm_device *dev); 987 988 int (*atomic_check)(struct drm_device *dev, 989 struct drm_atomic_state *a); 990 int (*atomic_commit)(struct drm_device *dev, 991 struct drm_atomic_state *a, 992 bool async); 993 }; 994 995 /** 996 * struct drm_mode_group - group of mode setting resources for potential sub-grouping 997 * @num_crtcs: CRTC count 998 * @num_encoders: encoder count 999 * @num_connectors: connector count 1000 * @num_bridges: bridge count 1001 * @id_list: list of KMS object IDs in this group 1002 * 1003 * Currently this simply tracks the global mode setting state. But in the 1004 * future it could allow groups of objects to be set aside into independent 1005 * control groups for use by different user level processes (e.g. two X servers 1006 * running simultaneously on different heads, each with their own mode 1007 * configuration and freedom of mode setting). 1008 */ 1009 struct drm_mode_group { 1010 uint32_t num_crtcs; 1011 uint32_t num_encoders; 1012 uint32_t num_connectors; 1013 1014 /* list of object IDs for this group */ 1015 uint32_t *id_list; 1016 }; 1017 1018 /** 1019 * struct drm_mode_config - Mode configuration control structure 1020 * @mutex: mutex protecting KMS related lists and structures 1021 * @connection_mutex: ww mutex protecting connector state and routing 1022 * @acquire_ctx: global implicit acquire context used by atomic drivers for 1023 * legacy ioctls 1024 * @idr_mutex: mutex for KMS ID allocation and management 1025 * @crtc_idr: main KMS ID tracking object 1026 * @fb_lock: mutex to protect fb state and lists 1027 * @num_fb: number of fbs available 1028 * @fb_list: list of framebuffers available 1029 * @num_connector: number of connectors on this device 1030 * @connector_list: list of connector objects 1031 * @num_encoder: number of encoders on this device 1032 * @encoder_list: list of encoder objects 1033 * @num_overlay_plane: number of overlay planes on this device 1034 * @num_total_plane: number of universal (i.e. with primary/curso) planes on this device 1035 * @plane_list: list of plane objects 1036 * @num_crtc: number of CRTCs on this device 1037 * @crtc_list: list of CRTC objects 1038 * @property_list: list of property objects 1039 * @min_width: minimum pixel width on this device 1040 * @min_height: minimum pixel height on this device 1041 * @max_width: maximum pixel width on this device 1042 * @max_height: maximum pixel height on this device 1043 * @funcs: core driver provided mode setting functions 1044 * @fb_base: base address of the framebuffer 1045 * @poll_enabled: track polling support for this device 1046 * @poll_running: track polling status for this device 1047 * @output_poll_work: delayed work for polling in process context 1048 * @property_blob_list: list of all the blob property objects 1049 * @*_property: core property tracking 1050 * @preferred_depth: preferred RBG pixel depth, used by fb helpers 1051 * @prefer_shadow: hint to userspace to prefer shadow-fb rendering 1052 * @async_page_flip: does this device support async flips on the primary plane? 1053 * @cursor_width: hint to userspace for max cursor width 1054 * @cursor_height: hint to userspace for max cursor height 1055 * 1056 * Core mode resource tracking structure. All CRTC, encoders, and connectors 1057 * enumerated by the driver are added here, as are global properties. Some 1058 * global restrictions are also here, e.g. dimension restrictions. 1059 */ 1060 struct drm_mode_config { 1061 struct mutex mutex; /* protects configuration (mode lists etc.) */ 1062 struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */ 1063 struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */ 1064 struct mutex idr_mutex; /* for IDR management */ 1065 struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */ 1066 struct idr tile_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */ 1067 /* this is limited to one for now */ 1068 1069 struct mutex fb_lock; /* proctects global and per-file fb lists */ 1070 int num_fb; 1071 struct list_head fb_list; 1072 1073 int num_connector; 1074 struct list_head connector_list; 1075 int num_encoder; 1076 struct list_head encoder_list; 1077 1078 /* 1079 * Track # of overlay planes separately from # of total planes. By 1080 * default we only advertise overlay planes to userspace; if userspace 1081 * sets the "universal plane" capability bit, we'll go ahead and 1082 * expose all planes. 1083 */ 1084 int num_overlay_plane; 1085 int num_total_plane; 1086 struct list_head plane_list; 1087 1088 int num_crtc; 1089 struct list_head crtc_list; 1090 1091 struct list_head property_list; 1092 1093 int min_width, min_height; 1094 int max_width, max_height; 1095 const struct drm_mode_config_funcs *funcs; 1096 resource_size_t fb_base; 1097 1098 /* output poll support */ 1099 bool poll_enabled; 1100 bool poll_running; 1101 bool delayed_event; 1102 struct delayed_work output_poll_work; 1103 1104 /* pointers to standard properties */ 1105 struct list_head property_blob_list; 1106 struct drm_property *edid_property; 1107 struct drm_property *dpms_property; 1108 struct drm_property *path_property; 1109 struct drm_property *tile_property; 1110 struct drm_property *plane_type_property; 1111 struct drm_property *rotation_property; 1112 struct drm_property *prop_src_x; 1113 struct drm_property *prop_src_y; 1114 struct drm_property *prop_src_w; 1115 struct drm_property *prop_src_h; 1116 struct drm_property *prop_crtc_x; 1117 struct drm_property *prop_crtc_y; 1118 struct drm_property *prop_crtc_w; 1119 struct drm_property *prop_crtc_h; 1120 struct drm_property *prop_fb_id; 1121 struct drm_property *prop_crtc_id; 1122 struct drm_property *prop_active; 1123 1124 /* DVI-I properties */ 1125 struct drm_property *dvi_i_subconnector_property; 1126 struct drm_property *dvi_i_select_subconnector_property; 1127 1128 /* TV properties */ 1129 struct drm_property *tv_subconnector_property; 1130 struct drm_property *tv_select_subconnector_property; 1131 struct drm_property *tv_mode_property; 1132 struct drm_property *tv_left_margin_property; 1133 struct drm_property *tv_right_margin_property; 1134 struct drm_property *tv_top_margin_property; 1135 struct drm_property *tv_bottom_margin_property; 1136 struct drm_property *tv_brightness_property; 1137 struct drm_property *tv_contrast_property; 1138 struct drm_property *tv_flicker_reduction_property; 1139 struct drm_property *tv_overscan_property; 1140 struct drm_property *tv_saturation_property; 1141 struct drm_property *tv_hue_property; 1142 1143 /* Optional properties */ 1144 struct drm_property *scaling_mode_property; 1145 struct drm_property *aspect_ratio_property; 1146 struct drm_property *dirty_info_property; 1147 1148 /* properties for virtual machine layout */ 1149 struct drm_property *suggested_x_property; 1150 struct drm_property *suggested_y_property; 1151 1152 /* dumb ioctl parameters */ 1153 uint32_t preferred_depth, prefer_shadow; 1154 1155 /* whether async page flip is supported or not */ 1156 bool async_page_flip; 1157 1158 /* cursor size */ 1159 uint32_t cursor_width, cursor_height; 1160 }; 1161 1162 /** 1163 * drm_for_each_plane_mask - iterate over planes specified by bitmask 1164 * @plane: the loop cursor 1165 * @dev: the DRM device 1166 * @plane_mask: bitmask of plane indices 1167 * 1168 * Iterate over all planes specified by bitmask. 1169 */ 1170 #define drm_for_each_plane_mask(plane, dev, plane_mask) \ 1171 list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \ 1172 if ((plane_mask) & (1 << drm_plane_index(plane))) 1173 1174 1175 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base) 1176 #define obj_to_connector(x) container_of(x, struct drm_connector, base) 1177 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base) 1178 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base) 1179 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base) 1180 #define obj_to_property(x) container_of(x, struct drm_property, base) 1181 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base) 1182 #define obj_to_plane(x) container_of(x, struct drm_plane, base) 1183 1184 struct drm_prop_enum_list { 1185 int type; 1186 char *name; 1187 }; 1188 1189 extern int drm_crtc_init_with_planes(struct drm_device *dev, 1190 struct drm_crtc *crtc, 1191 struct drm_plane *primary, 1192 struct drm_plane *cursor, 1193 const struct drm_crtc_funcs *funcs); 1194 extern void drm_crtc_cleanup(struct drm_crtc *crtc); 1195 extern unsigned int drm_crtc_index(struct drm_crtc *crtc); 1196 1197 /** 1198 * drm_crtc_mask - find the mask of a registered CRTC 1199 * @crtc: CRTC to find mask for 1200 * 1201 * Given a registered CRTC, return the mask bit of that CRTC for an 1202 * encoder's possible_crtcs field. 1203 */ 1204 static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc) 1205 { 1206 return 1 << drm_crtc_index(crtc); 1207 } 1208 1209 extern void drm_connector_ida_init(void); 1210 extern void drm_connector_ida_destroy(void); 1211 extern int drm_connector_init(struct drm_device *dev, 1212 struct drm_connector *connector, 1213 const struct drm_connector_funcs *funcs, 1214 int connector_type); 1215 int drm_connector_register(struct drm_connector *connector); 1216 void drm_connector_unregister(struct drm_connector *connector); 1217 1218 extern void drm_connector_cleanup(struct drm_connector *connector); 1219 extern unsigned int drm_connector_index(struct drm_connector *connector); 1220 /* helper to unplug all connectors from sysfs for device */ 1221 extern void drm_connector_unplug_all(struct drm_device *dev); 1222 1223 extern int drm_bridge_add(struct drm_bridge *bridge); 1224 extern void drm_bridge_remove(struct drm_bridge *bridge); 1225 extern struct drm_bridge *of_drm_find_bridge(struct device_node *np); 1226 extern int drm_bridge_attach(struct drm_device *dev, struct drm_bridge *bridge); 1227 1228 extern int drm_encoder_init(struct drm_device *dev, 1229 struct drm_encoder *encoder, 1230 const struct drm_encoder_funcs *funcs, 1231 int encoder_type); 1232 1233 /** 1234 * drm_encoder_crtc_ok - can a given crtc drive a given encoder? 1235 * @encoder: encoder to test 1236 * @crtc: crtc to test 1237 * 1238 * Return false if @encoder can't be driven by @crtc, true otherwise. 1239 */ 1240 static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder, 1241 struct drm_crtc *crtc) 1242 { 1243 return !!(encoder->possible_crtcs & drm_crtc_mask(crtc)); 1244 } 1245 1246 extern int drm_universal_plane_init(struct drm_device *dev, 1247 struct drm_plane *plane, 1248 unsigned long possible_crtcs, 1249 const struct drm_plane_funcs *funcs, 1250 const uint32_t *formats, 1251 uint32_t format_count, 1252 enum drm_plane_type type); 1253 extern int drm_plane_init(struct drm_device *dev, 1254 struct drm_plane *plane, 1255 unsigned long possible_crtcs, 1256 const struct drm_plane_funcs *funcs, 1257 const uint32_t *formats, uint32_t format_count, 1258 bool is_primary); 1259 extern void drm_plane_cleanup(struct drm_plane *plane); 1260 extern unsigned int drm_plane_index(struct drm_plane *plane); 1261 extern void drm_plane_force_disable(struct drm_plane *plane); 1262 extern void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, 1263 int *hdisplay, int *vdisplay); 1264 extern int drm_crtc_check_viewport(const struct drm_crtc *crtc, 1265 int x, int y, 1266 const struct drm_display_mode *mode, 1267 const struct drm_framebuffer *fb); 1268 1269 extern void drm_encoder_cleanup(struct drm_encoder *encoder); 1270 1271 extern const char *drm_get_connector_status_name(enum drm_connector_status status); 1272 extern const char *drm_get_subpixel_order_name(enum subpixel_order order); 1273 extern const char *drm_get_dpms_name(int val); 1274 extern const char *drm_get_dvi_i_subconnector_name(int val); 1275 extern const char *drm_get_dvi_i_select_name(int val); 1276 extern const char *drm_get_tv_subconnector_name(int val); 1277 extern const char *drm_get_tv_select_name(int val); 1278 extern void drm_fb_release(struct drm_file *file_priv); 1279 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group); 1280 extern void drm_mode_group_destroy(struct drm_mode_group *group); 1281 extern void drm_reinit_primary_mode_group(struct drm_device *dev); 1282 extern bool drm_probe_ddc(struct i2c_adapter *adapter); 1283 extern struct edid *drm_get_edid(struct drm_connector *connector, 1284 struct i2c_adapter *adapter); 1285 extern struct edid *drm_edid_duplicate(const struct edid *edid); 1286 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid); 1287 extern void drm_mode_config_init(struct drm_device *dev); 1288 extern void drm_mode_config_reset(struct drm_device *dev); 1289 extern void drm_mode_config_cleanup(struct drm_device *dev); 1290 1291 extern int drm_mode_connector_set_path_property(struct drm_connector *connector, 1292 const char *path); 1293 int drm_mode_connector_set_tile_property(struct drm_connector *connector); 1294 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector, 1295 const struct edid *edid); 1296 1297 extern int drm_display_info_set_bus_formats(struct drm_display_info *info, 1298 const u32 *formats, 1299 unsigned int num_formats); 1300 1301 static inline bool drm_property_type_is(struct drm_property *property, 1302 uint32_t type) 1303 { 1304 /* instanceof for props.. handles extended type vs original types: */ 1305 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) 1306 return (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) == type; 1307 return property->flags & type; 1308 } 1309 1310 static inline bool drm_property_type_valid(struct drm_property *property) 1311 { 1312 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) 1313 return !(property->flags & DRM_MODE_PROP_LEGACY_TYPE); 1314 return !!(property->flags & DRM_MODE_PROP_LEGACY_TYPE); 1315 } 1316 1317 extern int drm_object_property_set_value(struct drm_mode_object *obj, 1318 struct drm_property *property, 1319 uint64_t val); 1320 extern int drm_object_property_get_value(struct drm_mode_object *obj, 1321 struct drm_property *property, 1322 uint64_t *value); 1323 extern int drm_framebuffer_init(struct drm_device *dev, 1324 struct drm_framebuffer *fb, 1325 const struct drm_framebuffer_funcs *funcs); 1326 extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, 1327 uint32_t id); 1328 extern void drm_framebuffer_unreference(struct drm_framebuffer *fb); 1329 extern void drm_framebuffer_reference(struct drm_framebuffer *fb); 1330 extern void drm_framebuffer_remove(struct drm_framebuffer *fb); 1331 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb); 1332 extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb); 1333 1334 extern void drm_object_attach_property(struct drm_mode_object *obj, 1335 struct drm_property *property, 1336 uint64_t init_val); 1337 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags, 1338 const char *name, int num_values); 1339 extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 1340 const char *name, 1341 const struct drm_prop_enum_list *props, 1342 int num_values); 1343 struct drm_property *drm_property_create_bitmask(struct drm_device *dev, 1344 int flags, const char *name, 1345 const struct drm_prop_enum_list *props, 1346 int num_props, 1347 uint64_t supported_bits); 1348 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 1349 const char *name, 1350 uint64_t min, uint64_t max); 1351 struct drm_property *drm_property_create_signed_range(struct drm_device *dev, 1352 int flags, const char *name, 1353 int64_t min, int64_t max); 1354 struct drm_property *drm_property_create_object(struct drm_device *dev, 1355 int flags, const char *name, uint32_t type); 1356 struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, 1357 const char *name); 1358 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property); 1359 extern int drm_property_add_enum(struct drm_property *property, int index, 1360 uint64_t value, const char *name); 1361 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev); 1362 extern int drm_mode_create_tv_properties(struct drm_device *dev, 1363 unsigned int num_modes, 1364 char *modes[]); 1365 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev); 1366 extern int drm_mode_create_aspect_ratio_property(struct drm_device *dev); 1367 extern int drm_mode_create_dirty_info_property(struct drm_device *dev); 1368 extern int drm_mode_create_suggested_offset_properties(struct drm_device *dev); 1369 extern bool drm_property_change_valid_get(struct drm_property *property, 1370 uint64_t value, struct drm_mode_object **ref); 1371 extern void drm_property_change_valid_put(struct drm_property *property, 1372 struct drm_mode_object *ref); 1373 1374 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector, 1375 struct drm_encoder *encoder); 1376 extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 1377 int gamma_size); 1378 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, 1379 uint32_t id, uint32_t type); 1380 1381 /* IOCTLs */ 1382 extern int drm_mode_getresources(struct drm_device *dev, 1383 void *data, struct drm_file *file_priv); 1384 extern int drm_mode_getplane_res(struct drm_device *dev, void *data, 1385 struct drm_file *file_priv); 1386 extern int drm_mode_getcrtc(struct drm_device *dev, 1387 void *data, struct drm_file *file_priv); 1388 extern int drm_mode_getconnector(struct drm_device *dev, 1389 void *data, struct drm_file *file_priv); 1390 extern int drm_mode_set_config_internal(struct drm_mode_set *set); 1391 extern int drm_mode_setcrtc(struct drm_device *dev, 1392 void *data, struct drm_file *file_priv); 1393 extern int drm_mode_getplane(struct drm_device *dev, 1394 void *data, struct drm_file *file_priv); 1395 extern int drm_mode_setplane(struct drm_device *dev, 1396 void *data, struct drm_file *file_priv); 1397 extern int drm_mode_cursor_ioctl(struct drm_device *dev, 1398 void *data, struct drm_file *file_priv); 1399 extern int drm_mode_cursor2_ioctl(struct drm_device *dev, 1400 void *data, struct drm_file *file_priv); 1401 extern int drm_mode_addfb(struct drm_device *dev, 1402 void *data, struct drm_file *file_priv); 1403 extern int drm_mode_addfb2(struct drm_device *dev, 1404 void *data, struct drm_file *file_priv); 1405 extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth); 1406 extern int drm_mode_rmfb(struct drm_device *dev, 1407 void *data, struct drm_file *file_priv); 1408 extern int drm_mode_getfb(struct drm_device *dev, 1409 void *data, struct drm_file *file_priv); 1410 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 1411 void *data, struct drm_file *file_priv); 1412 1413 extern int drm_mode_getproperty_ioctl(struct drm_device *dev, 1414 void *data, struct drm_file *file_priv); 1415 extern int drm_mode_getblob_ioctl(struct drm_device *dev, 1416 void *data, struct drm_file *file_priv); 1417 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 1418 void *data, struct drm_file *file_priv); 1419 extern int drm_mode_getencoder(struct drm_device *dev, 1420 void *data, struct drm_file *file_priv); 1421 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev, 1422 void *data, struct drm_file *file_priv); 1423 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev, 1424 void *data, struct drm_file *file_priv); 1425 extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match); 1426 extern enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code); 1427 extern bool drm_detect_hdmi_monitor(struct edid *edid); 1428 extern bool drm_detect_monitor_audio(struct edid *edid); 1429 extern bool drm_rgb_quant_range_selectable(struct edid *edid); 1430 extern int drm_mode_page_flip_ioctl(struct drm_device *dev, 1431 void *data, struct drm_file *file_priv); 1432 extern int drm_add_modes_noedid(struct drm_connector *connector, 1433 int hdisplay, int vdisplay); 1434 extern void drm_set_preferred_mode(struct drm_connector *connector, 1435 int hpref, int vpref); 1436 1437 extern int drm_edid_header_is_valid(const u8 *raw_edid); 1438 extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid); 1439 extern bool drm_edid_is_valid(struct edid *edid); 1440 1441 extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, 1442 char topology[8]); 1443 extern struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, 1444 char topology[8]); 1445 extern void drm_mode_put_tile_group(struct drm_device *dev, 1446 struct drm_tile_group *tg); 1447 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev, 1448 int hsize, int vsize, int fresh, 1449 bool rb); 1450 1451 extern int drm_mode_create_dumb_ioctl(struct drm_device *dev, 1452 void *data, struct drm_file *file_priv); 1453 extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 1454 void *data, struct drm_file *file_priv); 1455 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 1456 void *data, struct drm_file *file_priv); 1457 extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, 1458 struct drm_file *file_priv); 1459 extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, 1460 struct drm_file *file_priv); 1461 extern int drm_mode_plane_set_obj_prop(struct drm_plane *plane, 1462 struct drm_property *property, 1463 uint64_t value); 1464 extern int drm_mode_atomic_ioctl(struct drm_device *dev, 1465 void *data, struct drm_file *file_priv); 1466 1467 extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, 1468 int *bpp); 1469 extern int drm_format_num_planes(uint32_t format); 1470 extern int drm_format_plane_cpp(uint32_t format, int plane); 1471 extern int drm_format_horz_chroma_subsampling(uint32_t format); 1472 extern int drm_format_vert_chroma_subsampling(uint32_t format); 1473 extern const char *drm_get_format_name(uint32_t format); 1474 extern struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, 1475 unsigned int supported_rotations); 1476 extern unsigned int drm_rotation_simplify(unsigned int rotation, 1477 unsigned int supported_rotations); 1478 1479 /* Helpers */ 1480 1481 static inline struct drm_plane *drm_plane_find(struct drm_device *dev, 1482 uint32_t id) 1483 { 1484 struct drm_mode_object *mo; 1485 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PLANE); 1486 return mo ? obj_to_plane(mo) : NULL; 1487 } 1488 1489 static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev, 1490 uint32_t id) 1491 { 1492 struct drm_mode_object *mo; 1493 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CRTC); 1494 return mo ? obj_to_crtc(mo) : NULL; 1495 } 1496 1497 static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev, 1498 uint32_t id) 1499 { 1500 struct drm_mode_object *mo; 1501 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER); 1502 return mo ? obj_to_encoder(mo) : NULL; 1503 } 1504 1505 static inline struct drm_connector *drm_connector_find(struct drm_device *dev, 1506 uint32_t id) 1507 { 1508 struct drm_mode_object *mo; 1509 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CONNECTOR); 1510 return mo ? obj_to_connector(mo) : NULL; 1511 } 1512 1513 static inline struct drm_property *drm_property_find(struct drm_device *dev, 1514 uint32_t id) 1515 { 1516 struct drm_mode_object *mo; 1517 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PROPERTY); 1518 return mo ? obj_to_property(mo) : NULL; 1519 } 1520 1521 static inline struct drm_property_blob * 1522 drm_property_blob_find(struct drm_device *dev, uint32_t id) 1523 { 1524 struct drm_mode_object *mo; 1525 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_BLOB); 1526 return mo ? obj_to_blob(mo) : NULL; 1527 } 1528 1529 /* Plane list iterator for legacy (overlay only) planes. */ 1530 #define drm_for_each_legacy_plane(plane, planelist) \ 1531 list_for_each_entry(plane, planelist, head) \ 1532 if (plane->type == DRM_PLANE_TYPE_OVERLAY) 1533 1534 #endif /* __DRM_CRTC_H__ */ 1535