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 <uapi_drm/drm_mode.h> 35 #include <uapi_drm/drm_fourcc.h> 36 #include <drm/drm_modeset_lock.h> 37 38 struct drm_device; 39 struct drm_mode_set; 40 struct drm_framebuffer; 41 struct drm_object_properties; 42 struct drm_file; 43 struct drm_clip_rect; 44 struct device_node; 45 struct fence; 46 47 #define DRM_MODE_OBJECT_CRTC 0xcccccccc 48 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0 49 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0 50 #define DRM_MODE_OBJECT_MODE 0xdededede 51 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0 52 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb 53 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb 54 #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee 55 #define DRM_MODE_OBJECT_ANY 0 56 57 struct drm_mode_object { 58 uint32_t id; 59 uint32_t type; 60 struct drm_object_properties *properties; 61 }; 62 63 #define DRM_OBJECT_MAX_PROPERTY 24 64 struct drm_object_properties { 65 int count, atomic_count; 66 /* NOTE: if we ever start dynamically destroying properties (ie. 67 * not at drm_mode_config_cleanup() time), then we'd have to do 68 * a better job of detaching property from mode objects to avoid 69 * dangling property pointers: 70 */ 71 struct drm_property *properties[DRM_OBJECT_MAX_PROPERTY]; 72 /* do not read/write values directly, but use drm_object_property_get_value() 73 * and drm_object_property_set_value(): 74 */ 75 uint64_t values[DRM_OBJECT_MAX_PROPERTY]; 76 }; 77 78 static inline int64_t U642I64(uint64_t val) 79 { 80 return (int64_t)*((int64_t *)&val); 81 } 82 static inline uint64_t I642U64(int64_t val) 83 { 84 return (uint64_t)*((uint64_t *)&val); 85 } 86 87 /* rotation property bits */ 88 #define DRM_ROTATE_0 0 89 #define DRM_ROTATE_90 1 90 #define DRM_ROTATE_180 2 91 #define DRM_ROTATE_270 3 92 #define DRM_REFLECT_X 4 93 #define DRM_REFLECT_Y 5 94 95 enum drm_connector_force { 96 DRM_FORCE_UNSPECIFIED, 97 DRM_FORCE_OFF, 98 DRM_FORCE_ON, /* force on analog part normally */ 99 DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */ 100 }; 101 102 #include <drm/drm_modes.h> 103 104 enum drm_connector_status { 105 connector_status_connected = 1, 106 connector_status_disconnected = 2, 107 connector_status_unknown = 3, 108 }; 109 110 enum subpixel_order { 111 SubPixelUnknown = 0, 112 SubPixelHorizontalRGB, 113 SubPixelHorizontalBGR, 114 SubPixelVerticalRGB, 115 SubPixelVerticalBGR, 116 SubPixelNone, 117 }; 118 119 #define DRM_COLOR_FORMAT_RGB444 (1<<0) 120 #define DRM_COLOR_FORMAT_YCRCB444 (1<<1) 121 #define DRM_COLOR_FORMAT_YCRCB422 (1<<2) 122 /* 123 * Describes a given display (e.g. CRT or flat panel) and its limitations. 124 */ 125 struct drm_display_info { 126 char name[DRM_DISPLAY_INFO_LEN]; 127 128 /* Physical size */ 129 unsigned int width_mm; 130 unsigned int height_mm; 131 132 /* Clock limits FIXME: storage format */ 133 unsigned int min_vfreq, max_vfreq; 134 unsigned int min_hfreq, max_hfreq; 135 unsigned int pixel_clock; 136 unsigned int bpc; 137 138 enum subpixel_order subpixel_order; 139 u32 color_formats; 140 141 u32 *bus_formats; 142 unsigned int num_bus_formats; 143 144 /* Mask of supported hdmi deep color modes */ 145 u8 edid_hdmi_dc_modes; 146 147 u8 cea_rev; 148 }; 149 150 /* data corresponds to displayid vend/prod/serial */ 151 struct drm_tile_group { 152 struct kref refcount; 153 struct drm_device *dev; 154 int id; 155 u8 group_data[8]; 156 }; 157 158 struct drm_framebuffer_funcs { 159 /* note: use drm_framebuffer_remove() */ 160 void (*destroy)(struct drm_framebuffer *framebuffer); 161 int (*create_handle)(struct drm_framebuffer *fb, 162 struct drm_file *file_priv, 163 unsigned int *handle); 164 /* 165 * Optional callback for the dirty fb ioctl. 166 * 167 * Userspace can notify the driver via this callback 168 * that a area of the framebuffer has changed and should 169 * be flushed to the display hardware. 170 * 171 * See documentation in drm_mode.h for the struct 172 * drm_mode_fb_dirty_cmd for more information as all 173 * the semantics and arguments have a one to one mapping 174 * on this function. 175 */ 176 int (*dirty)(struct drm_framebuffer *framebuffer, 177 struct drm_file *file_priv, unsigned flags, 178 unsigned color, struct drm_clip_rect *clips, 179 unsigned num_clips); 180 }; 181 182 struct drm_framebuffer { 183 struct drm_device *dev; 184 /* 185 * Note that the fb is refcounted for the benefit of driver internals, 186 * for example some hw, disabling a CRTC/plane is asynchronous, and 187 * scanout does not actually complete until the next vblank. So some 188 * cleanup (like releasing the reference(s) on the backing GEM bo(s)) 189 * should be deferred. In cases like this, the driver would like to 190 * hold a ref to the fb even though it has already been removed from 191 * userspace perspective. 192 */ 193 struct kref refcount; 194 /* 195 * Place on the dev->mode_config.fb_list, access protected by 196 * dev->mode_config.fb_lock. 197 */ 198 struct list_head head; 199 struct drm_mode_object base; 200 const struct drm_framebuffer_funcs *funcs; 201 unsigned int pitches[4]; 202 unsigned int offsets[4]; 203 uint64_t modifier[4]; 204 unsigned int width; 205 unsigned int height; 206 /* depth can be 15 or 16 */ 207 unsigned int depth; 208 int bits_per_pixel; 209 int flags; 210 uint32_t pixel_format; /* fourcc format */ 211 struct list_head filp_head; 212 /* if you are using the helper */ 213 void *helper_private; 214 }; 215 216 struct drm_property_blob { 217 struct drm_mode_object base; 218 struct drm_device *dev; 219 struct kref refcount; 220 struct list_head head_global; 221 struct list_head head_file; 222 size_t length; 223 unsigned char data[]; 224 }; 225 226 struct drm_property_enum { 227 uint64_t value; 228 struct list_head head; 229 char name[DRM_PROP_NAME_LEN]; 230 }; 231 232 struct drm_property { 233 struct list_head head; 234 struct drm_mode_object base; 235 uint32_t flags; 236 char name[DRM_PROP_NAME_LEN]; 237 uint32_t num_values; 238 uint64_t *values; 239 struct drm_device *dev; 240 241 struct list_head enum_list; 242 }; 243 244 struct drm_crtc; 245 struct drm_connector; 246 struct drm_encoder; 247 struct drm_pending_vblank_event; 248 struct drm_plane; 249 struct drm_bridge; 250 struct drm_atomic_state; 251 252 /** 253 * struct drm_crtc_state - mutable CRTC state 254 * @crtc: backpointer to the CRTC 255 * @enable: whether the CRTC should be enabled, gates all other state 256 * @active: whether the CRTC is actively displaying (used for DPMS) 257 * @planes_changed: planes on this crtc are updated 258 * @mode_changed: crtc_state->mode or crtc_state->enable has been changed 259 * @active_changed: crtc_state->active has been toggled. 260 * @connectors_changed: connectors to this crtc have been updated 261 * @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes 262 * @last_vblank_count: for helpers and drivers to capture the vblank of the 263 * update to ensure framebuffer cleanup isn't done too early 264 * @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings 265 * @mode: current mode timings 266 * @event: optional pointer to a DRM event to signal upon completion of the 267 * state update 268 * @state: backpointer to global drm_atomic_state 269 * 270 * Note that the distinction between @enable and @active is rather subtile: 271 * Flipping @active while @enable is set without changing anything else may 272 * never return in a failure from the ->atomic_check callback. Userspace assumes 273 * that a DPMS On will always succeed. In other words: @enable controls resource 274 * assignment, @active controls the actual hardware state. 275 */ 276 struct drm_crtc_state { 277 struct drm_crtc *crtc; 278 279 bool enable; 280 bool active; 281 282 /* computed state bits used by helpers and drivers */ 283 bool planes_changed : 1; 284 bool mode_changed : 1; 285 bool active_changed : 1; 286 bool connectors_changed : 1; 287 288 /* attached planes bitmask: 289 * WARNING: transitional helpers do not maintain plane_mask so 290 * drivers not converted over to atomic helpers should not rely 291 * on plane_mask being accurate! 292 */ 293 u32 plane_mask; 294 295 /* last_vblank_count: for vblank waits before cleanup */ 296 u32 last_vblank_count; 297 298 /* adjusted_mode: for use by helpers and drivers */ 299 struct drm_display_mode adjusted_mode; 300 301 struct drm_display_mode mode; 302 303 /* blob property to expose current mode to atomic userspace */ 304 struct drm_property_blob *mode_blob; 305 306 struct drm_pending_vblank_event *event; 307 308 struct drm_atomic_state *state; 309 }; 310 311 /** 312 * struct drm_crtc_funcs - control CRTCs for a given device 313 * @save: save CRTC state 314 * @restore: restore CRTC state 315 * @reset: reset CRTC after state has been invalidated (e.g. resume) 316 * @cursor_set: setup the cursor 317 * @cursor_set2: setup the cursor with hotspot, superseeds @cursor_set if set 318 * @cursor_move: move the cursor 319 * @gamma_set: specify color ramp for CRTC 320 * @destroy: deinit and free object 321 * @set_property: called when a property is changed 322 * @set_config: apply a new CRTC configuration 323 * @page_flip: initiate a page flip 324 * @atomic_duplicate_state: duplicate the atomic state for this CRTC 325 * @atomic_destroy_state: destroy an atomic state for this CRTC 326 * @atomic_set_property: set a property on an atomic state for this CRTC 327 * (do not call directly, use drm_atomic_crtc_set_property()) 328 * @atomic_get_property: get a property on an atomic state for this CRTC 329 * (do not call directly, use drm_atomic_crtc_get_property()) 330 * 331 * The drm_crtc_funcs structure is the central CRTC management structure 332 * in the DRM. Each CRTC controls one or more connectors (note that the name 333 * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc. 334 * connectors, not just CRTs). 335 * 336 * Each driver is responsible for filling out this structure at startup time, 337 * in addition to providing other modesetting features, like i2c and DDC 338 * bus accessors. 339 */ 340 struct drm_crtc_funcs { 341 /* Save CRTC state */ 342 void (*save)(struct drm_crtc *crtc); /* suspend? */ 343 /* Restore CRTC state */ 344 void (*restore)(struct drm_crtc *crtc); /* resume? */ 345 /* Reset CRTC state */ 346 void (*reset)(struct drm_crtc *crtc); 347 348 /* cursor controls */ 349 int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv, 350 uint32_t handle, uint32_t width, uint32_t height); 351 int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv, 352 uint32_t handle, uint32_t width, uint32_t height, 353 int32_t hot_x, int32_t hot_y); 354 int (*cursor_move)(struct drm_crtc *crtc, int x, int y); 355 356 /* Set gamma on the CRTC */ 357 void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b, 358 uint32_t start, uint32_t size); 359 /* Object destroy routine */ 360 void (*destroy)(struct drm_crtc *crtc); 361 362 int (*set_config)(struct drm_mode_set *set); 363 364 /* 365 * Flip to the given framebuffer. This implements the page 366 * flip ioctl described in drm_mode.h, specifically, the 367 * implementation must return immediately and block all 368 * rendering to the current fb until the flip has completed. 369 * If userspace set the event flag in the ioctl, the event 370 * argument will point to an event to send back when the flip 371 * completes, otherwise it will be NULL. 372 */ 373 int (*page_flip)(struct drm_crtc *crtc, 374 struct drm_framebuffer *fb, 375 struct drm_pending_vblank_event *event, 376 uint32_t flags); 377 378 int (*set_property)(struct drm_crtc *crtc, 379 struct drm_property *property, uint64_t val); 380 381 /* atomic update handling */ 382 struct drm_crtc_state *(*atomic_duplicate_state)(struct drm_crtc *crtc); 383 void (*atomic_destroy_state)(struct drm_crtc *crtc, 384 struct drm_crtc_state *state); 385 int (*atomic_set_property)(struct drm_crtc *crtc, 386 struct drm_crtc_state *state, 387 struct drm_property *property, 388 uint64_t val); 389 int (*atomic_get_property)(struct drm_crtc *crtc, 390 const struct drm_crtc_state *state, 391 struct drm_property *property, 392 uint64_t *val); 393 }; 394 395 /** 396 * struct drm_crtc - central CRTC control structure 397 * @dev: parent DRM device 398 * @port: OF node used by drm_of_find_possible_crtcs() 399 * @head: list management 400 * @mutex: per-CRTC locking 401 * @base: base KMS object for ID tracking etc. 402 * @primary: primary plane for this CRTC 403 * @cursor: cursor plane for this CRTC 404 * @cursor_x: current x position of the cursor, used for universal cursor planes 405 * @cursor_y: current y position of the cursor, used for universal cursor planes 406 * @enabled: is this CRTC enabled? 407 * @mode: current mode timings 408 * @hwmode: mode timings as programmed to hw regs 409 * @invert_dimensions: for purposes of error checking crtc vs fb sizes, 410 * invert the width/height of the crtc. This is used if the driver 411 * is performing 90 or 270 degree rotated scanout 412 * @x: x position on screen 413 * @y: y position on screen 414 * @funcs: CRTC control functions 415 * @gamma_size: size of gamma ramp 416 * @gamma_store: gamma ramp values 417 * @framedur_ns: precise frame timing 418 * @linedur_ns: precise line timing 419 * @pixeldur_ns: precise pixel timing 420 * @helper_private: mid-layer private data 421 * @properties: property tracking for this CRTC 422 * @state: current atomic state for this CRTC 423 * @acquire_ctx: per-CRTC implicit acquire context used by atomic drivers for 424 * legacy ioctls 425 * 426 * Each CRTC may have one or more connectors associated with it. This structure 427 * allows the CRTC to be controlled. 428 */ 429 struct drm_crtc { 430 struct drm_device *dev; 431 struct device_node *port; 432 struct list_head head; 433 434 /* 435 * crtc mutex 436 * 437 * This provides a read lock for the overall crtc state (mode, dpms 438 * state, ...) and a write lock for everything which can be update 439 * without a full modeset (fb, cursor data, ...) 440 */ 441 struct drm_modeset_lock mutex; 442 443 struct drm_mode_object base; 444 445 /* primary and cursor planes for CRTC */ 446 struct drm_plane *primary; 447 struct drm_plane *cursor; 448 449 /* position of cursor plane on crtc */ 450 int cursor_x; 451 int cursor_y; 452 453 bool enabled; 454 455 /* Requested mode from modesetting. */ 456 struct drm_display_mode mode; 457 458 /* Programmed mode in hw, after adjustments for encoders, 459 * crtc, panel scaling etc. Needed for timestamping etc. 460 */ 461 struct drm_display_mode hwmode; 462 463 bool invert_dimensions; 464 465 int x, y; 466 const struct drm_crtc_funcs *funcs; 467 468 /* CRTC gamma size for reporting to userspace */ 469 uint32_t gamma_size; 470 uint16_t *gamma_store; 471 472 /* Constants needed for precise vblank and swap timestamping. */ 473 int framedur_ns, linedur_ns, pixeldur_ns; 474 475 /* if you are using the helper */ 476 const void *helper_private; 477 478 struct drm_object_properties properties; 479 480 struct drm_crtc_state *state; 481 482 /* 483 * For legacy crtc ioctls so that atomic drivers can get at the locking 484 * acquire context. 485 */ 486 struct drm_modeset_acquire_ctx *acquire_ctx; 487 }; 488 489 /** 490 * struct drm_connector_state - mutable connector state 491 * @connector: backpointer to the connector 492 * @crtc: CRTC to connect connector to, NULL if disabled 493 * @best_encoder: can be used by helpers and drivers to select the encoder 494 * @state: backpointer to global drm_atomic_state 495 */ 496 struct drm_connector_state { 497 struct drm_connector *connector; 498 499 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_connector() */ 500 501 struct drm_encoder *best_encoder; 502 503 struct drm_atomic_state *state; 504 }; 505 506 /** 507 * struct drm_connector_funcs - control connectors on a given device 508 * @dpms: set power state 509 * @save: save connector state 510 * @restore: restore connector state 511 * @reset: reset connector after state has been invalidated (e.g. resume) 512 * @detect: is this connector active? 513 * @fill_modes: fill mode list for this connector 514 * @set_property: property for this connector may need an update 515 * @destroy: make object go away 516 * @force: notify the driver that the connector is forced on 517 * @atomic_duplicate_state: duplicate the atomic state for this connector 518 * @atomic_destroy_state: destroy an atomic state for this connector 519 * @atomic_set_property: set a property on an atomic state for this connector 520 * (do not call directly, use drm_atomic_connector_set_property()) 521 * @atomic_get_property: get a property on an atomic state for this connector 522 * (do not call directly, use drm_atomic_connector_get_property()) 523 * 524 * Each CRTC may have one or more connectors attached to it. The functions 525 * below allow the core DRM code to control connectors, enumerate available modes, 526 * etc. 527 */ 528 struct drm_connector_funcs { 529 int (*dpms)(struct drm_connector *connector, int mode); 530 void (*save)(struct drm_connector *connector); 531 void (*restore)(struct drm_connector *connector); 532 void (*reset)(struct drm_connector *connector); 533 534 /* Check to see if anything is attached to the connector. 535 * @force is set to false whilst polling, true when checking the 536 * connector due to user request. @force can be used by the driver 537 * to avoid expensive, destructive operations during automated 538 * probing. 539 */ 540 enum drm_connector_status (*detect)(struct drm_connector *connector, 541 bool force); 542 int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height); 543 int (*set_property)(struct drm_connector *connector, struct drm_property *property, 544 uint64_t val); 545 void (*destroy)(struct drm_connector *connector); 546 void (*force)(struct drm_connector *connector); 547 548 /* atomic update handling */ 549 struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector); 550 void (*atomic_destroy_state)(struct drm_connector *connector, 551 struct drm_connector_state *state); 552 int (*atomic_set_property)(struct drm_connector *connector, 553 struct drm_connector_state *state, 554 struct drm_property *property, 555 uint64_t val); 556 int (*atomic_get_property)(struct drm_connector *connector, 557 const struct drm_connector_state *state, 558 struct drm_property *property, 559 uint64_t *val); 560 }; 561 562 /** 563 * struct drm_encoder_funcs - encoder controls 564 * @reset: reset state (e.g. at init or resume time) 565 * @destroy: cleanup and free associated data 566 * 567 * Encoders sit between CRTCs and connectors. 568 */ 569 struct drm_encoder_funcs { 570 void (*reset)(struct drm_encoder *encoder); 571 void (*destroy)(struct drm_encoder *encoder); 572 }; 573 574 #define DRM_CONNECTOR_MAX_ENCODER 3 575 576 /** 577 * struct drm_encoder - central DRM encoder structure 578 * @dev: parent DRM device 579 * @head: list management 580 * @base: base KMS object 581 * @name: encoder name 582 * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h 583 * @possible_crtcs: bitmask of potential CRTC bindings 584 * @possible_clones: bitmask of potential sibling encoders for cloning 585 * @crtc: currently bound CRTC 586 * @bridge: bridge associated to the encoder 587 * @funcs: control functions 588 * @helper_private: mid-layer private data 589 * 590 * CRTCs drive pixels to encoders, which convert them into signals 591 * appropriate for a given connector or set of connectors. 592 */ 593 struct drm_encoder { 594 struct drm_device *dev; 595 struct list_head head; 596 597 struct drm_mode_object base; 598 char *name; 599 int encoder_type; 600 uint32_t possible_crtcs; 601 uint32_t possible_clones; 602 603 struct drm_crtc *crtc; 604 struct drm_bridge *bridge; 605 const struct drm_encoder_funcs *funcs; 606 void *helper_private; 607 }; 608 609 /* should we poll this connector for connects and disconnects */ 610 /* hot plug detectable */ 611 #define DRM_CONNECTOR_POLL_HPD (1 << 0) 612 /* poll for connections */ 613 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1) 614 /* can cleanly poll for disconnections without flickering the screen */ 615 /* DACs should rarely do this without a lot of testing */ 616 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2) 617 618 #define MAX_ELD_BYTES 128 619 620 /** 621 * struct drm_connector - central DRM connector control structure 622 * @dev: parent DRM device 623 * @kdev: kernel device for sysfs attributes 624 * @attr: sysfs attributes 625 * @head: list management 626 * @base: base KMS object 627 * @name: connector name 628 * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h 629 * @connector_type_id: index into connector type enum 630 * @interlace_allowed: can this connector handle interlaced modes? 631 * @doublescan_allowed: can this connector handle doublescan? 632 * @stereo_allowed: can this connector handle stereo modes? 633 * @modes: modes available on this connector (from fill_modes() + user) 634 * @status: one of the drm_connector_status enums (connected, not, or unknown) 635 * @probed_modes: list of modes derived directly from the display 636 * @display_info: information about attached display (e.g. from EDID) 637 * @funcs: connector control functions 638 * @edid_blob_ptr: DRM property containing EDID if present 639 * @properties: property tracking for this connector 640 * @path_blob_ptr: DRM blob property data for the DP MST path property 641 * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling 642 * @dpms: current dpms state 643 * @helper_private: mid-layer private data 644 * @cmdline_mode: mode line parsed from the kernel cmdline for this connector 645 * @force: a %DRM_FORCE_<foo> state for forced mode sets 646 * @override_edid: has the EDID been overwritten through debugfs for testing? 647 * @encoder_ids: valid encoders for this connector 648 * @encoder: encoder driving this connector, if any 649 * @eld: EDID-like data, if present 650 * @dvi_dual: dual link DVI, if found 651 * @max_tmds_clock: max clock rate, if found 652 * @latency_present: AV delay info from ELD, if found 653 * @video_latency: video latency info from ELD, if found 654 * @audio_latency: audio latency info from ELD, if found 655 * @null_edid_counter: track sinks that give us all zeros for the EDID 656 * @bad_edid_counter: track sinks that give us an EDID with invalid checksum 657 * @edid_corrupt: indicates whether the last read EDID was corrupt 658 * @debugfs_entry: debugfs directory for this connector 659 * @state: current atomic state for this connector 660 * @has_tile: is this connector connected to a tiled monitor 661 * @tile_group: tile group for the connected monitor 662 * @tile_is_single_monitor: whether the tile is one monitor housing 663 * @num_h_tile: number of horizontal tiles in the tile group 664 * @num_v_tile: number of vertical tiles in the tile group 665 * @tile_h_loc: horizontal location of this tile 666 * @tile_v_loc: vertical location of this tile 667 * @tile_h_size: horizontal size of this tile. 668 * @tile_v_size: vertical size of this tile. 669 * 670 * Each connector may be connected to one or more CRTCs, or may be clonable by 671 * another connector if they can share a CRTC. Each connector also has a specific 672 * position in the broader display (referred to as a 'screen' though it could 673 * span multiple monitors). 674 */ 675 struct drm_connector { 676 struct drm_device *dev; 677 struct device *kdev; 678 struct device_attribute *attr; 679 struct list_head head; 680 681 struct drm_mode_object base; 682 683 char *name; 684 int connector_type; 685 int connector_type_id; 686 bool interlace_allowed; 687 bool doublescan_allowed; 688 bool stereo_allowed; 689 struct list_head modes; /* list of modes on this connector */ 690 691 enum drm_connector_status status; 692 693 /* these are modes added by probing with DDC or the BIOS */ 694 struct list_head probed_modes; 695 696 struct drm_display_info display_info; 697 const struct drm_connector_funcs *funcs; 698 699 struct drm_property_blob *edid_blob_ptr; 700 struct drm_object_properties properties; 701 702 struct drm_property_blob *path_blob_ptr; 703 704 struct drm_property_blob *tile_blob_ptr; 705 706 uint8_t polled; /* DRM_CONNECTOR_POLL_* */ 707 708 /* requested DPMS state */ 709 int dpms; 710 711 void *helper_private; 712 713 /* forced on connector */ 714 struct drm_cmdline_mode cmdline_mode; 715 enum drm_connector_force force; 716 bool override_edid; 717 uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER]; 718 struct drm_encoder *encoder; /* currently active encoder */ 719 720 /* EDID bits */ 721 uint8_t eld[MAX_ELD_BYTES]; 722 bool dvi_dual; 723 int max_tmds_clock; /* in MHz */ 724 bool latency_present[2]; 725 int video_latency[2]; /* [0]: progressive, [1]: interlaced */ 726 int audio_latency[2]; 727 int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */ 728 unsigned bad_edid_counter; 729 730 /* Flag for raw EDID header corruption - used in Displayport 731 * compliance testing - * Displayport Link CTS Core 1.2 rev1.1 4.2.2.6 732 */ 733 bool edid_corrupt; 734 735 struct dentry *debugfs_entry; 736 737 struct drm_connector_state *state; 738 739 /* DisplayID bits */ 740 bool has_tile; 741 struct drm_tile_group *tile_group; 742 bool tile_is_single_monitor; 743 744 uint8_t num_h_tile, num_v_tile; 745 uint8_t tile_h_loc, tile_v_loc; 746 uint16_t tile_h_size, tile_v_size; 747 }; 748 749 /** 750 * struct drm_plane_state - mutable plane state 751 * @plane: backpointer to the plane 752 * @crtc: currently bound CRTC, NULL if disabled 753 * @fb: currently bound framebuffer 754 * @fence: optional fence to wait for before scanning out @fb 755 * @crtc_x: left position of visible portion of plane on crtc 756 * @crtc_y: upper position of visible portion of plane on crtc 757 * @crtc_w: width of visible portion of plane on crtc 758 * @crtc_h: height of visible portion of plane on crtc 759 * @src_x: left position of visible portion of plane within 760 * plane (in 16.16) 761 * @src_y: upper position of visible portion of plane within 762 * plane (in 16.16) 763 * @src_w: width of visible portion of plane (in 16.16) 764 * @src_h: height of visible portion of plane (in 16.16) 765 * @state: backpointer to global drm_atomic_state 766 */ 767 struct drm_plane_state { 768 struct drm_plane *plane; 769 770 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_plane() */ 771 struct drm_framebuffer *fb; /* do not write directly, use drm_atomic_set_fb_for_plane() */ 772 /* XXX: implement linux/fence.h first */ 773 /* struct fence *fence; */ 774 775 /* Signed dest location allows it to be partially off screen */ 776 int32_t crtc_x, crtc_y; 777 uint32_t crtc_w, crtc_h; 778 779 /* Source values are 16.16 fixed point */ 780 uint32_t src_x, src_y; 781 uint32_t src_h, src_w; 782 783 /* Plane rotation */ 784 unsigned int rotation; 785 786 struct drm_atomic_state *state; 787 }; 788 789 790 /** 791 * struct drm_plane_funcs - driver plane control functions 792 * @update_plane: update the plane configuration 793 * @disable_plane: shut down the plane 794 * @destroy: clean up plane resources 795 * @reset: reset plane after state has been invalidated (e.g. resume) 796 * @set_property: called when a property is changed 797 * @atomic_duplicate_state: duplicate the atomic state for this plane 798 * @atomic_destroy_state: destroy an atomic state for this plane 799 * @atomic_set_property: set a property on an atomic state for this plane 800 * (do not call directly, use drm_atomic_plane_set_property()) 801 * @atomic_get_property: get a property on an atomic state for this plane 802 * (do not call directly, use drm_atomic_plane_get_property()) 803 */ 804 struct drm_plane_funcs { 805 int (*update_plane)(struct drm_plane *plane, 806 struct drm_crtc *crtc, struct drm_framebuffer *fb, 807 int crtc_x, int crtc_y, 808 unsigned int crtc_w, unsigned int crtc_h, 809 uint32_t src_x, uint32_t src_y, 810 uint32_t src_w, uint32_t src_h); 811 int (*disable_plane)(struct drm_plane *plane); 812 void (*destroy)(struct drm_plane *plane); 813 void (*reset)(struct drm_plane *plane); 814 815 int (*set_property)(struct drm_plane *plane, 816 struct drm_property *property, uint64_t val); 817 818 /* atomic update handling */ 819 struct drm_plane_state *(*atomic_duplicate_state)(struct drm_plane *plane); 820 void (*atomic_destroy_state)(struct drm_plane *plane, 821 struct drm_plane_state *state); 822 int (*atomic_set_property)(struct drm_plane *plane, 823 struct drm_plane_state *state, 824 struct drm_property *property, 825 uint64_t val); 826 int (*atomic_get_property)(struct drm_plane *plane, 827 const struct drm_plane_state *state, 828 struct drm_property *property, 829 uint64_t *val); 830 }; 831 832 enum drm_plane_type { 833 DRM_PLANE_TYPE_OVERLAY, 834 DRM_PLANE_TYPE_PRIMARY, 835 DRM_PLANE_TYPE_CURSOR, 836 }; 837 838 /** 839 * struct drm_plane - central DRM plane control structure 840 * @dev: DRM device this plane belongs to 841 * @head: for list management 842 * @base: base mode object 843 * @possible_crtcs: pipes this plane can be bound to 844 * @format_types: array of formats supported by this plane 845 * @format_count: number of formats supported 846 * @format_default: driver hasn't supplied supported formats for the plane 847 * @crtc: currently bound CRTC 848 * @fb: currently bound fb 849 * @old_fb: Temporary tracking of the old fb while a modeset is ongoing. Used by 850 * drm_mode_set_config_internal() to implement correct refcounting. 851 * @funcs: helper functions 852 * @properties: property tracking for this plane 853 * @type: type of plane (overlay, primary, cursor) 854 * @state: current atomic state for this plane 855 */ 856 struct drm_plane { 857 struct drm_device *dev; 858 struct list_head head; 859 860 struct drm_modeset_lock mutex; 861 862 struct drm_mode_object base; 863 864 uint32_t possible_crtcs; 865 uint32_t *format_types; 866 uint32_t format_count; 867 bool format_default; 868 869 struct drm_crtc *crtc; 870 struct drm_framebuffer *fb; 871 872 struct drm_framebuffer *old_fb; 873 874 const struct drm_plane_funcs *funcs; 875 876 struct drm_object_properties properties; 877 878 enum drm_plane_type type; 879 880 const void *helper_private; 881 882 struct drm_plane_state *state; 883 }; 884 885 /** 886 * struct drm_bridge_funcs - drm_bridge control functions 887 * @attach: Called during drm_bridge_attach 888 * @mode_fixup: Try to fixup (or reject entirely) proposed mode for this bridge 889 * @disable: Called right before encoder prepare, disables the bridge 890 * @post_disable: Called right after encoder prepare, for lockstepped disable 891 * @mode_set: Set this mode to the bridge 892 * @pre_enable: Called right before encoder commit, for lockstepped commit 893 * @enable: Called right after encoder commit, enables the bridge 894 */ 895 struct drm_bridge_funcs { 896 int (*attach)(struct drm_bridge *bridge); 897 bool (*mode_fixup)(struct drm_bridge *bridge, 898 const struct drm_display_mode *mode, 899 struct drm_display_mode *adjusted_mode); 900 void (*disable)(struct drm_bridge *bridge); 901 void (*post_disable)(struct drm_bridge *bridge); 902 void (*mode_set)(struct drm_bridge *bridge, 903 struct drm_display_mode *mode, 904 struct drm_display_mode *adjusted_mode); 905 void (*pre_enable)(struct drm_bridge *bridge); 906 void (*enable)(struct drm_bridge *bridge); 907 }; 908 909 /** 910 * struct drm_bridge - central DRM bridge control structure 911 * @dev: DRM device this bridge belongs to 912 * @encoder: encoder to which this bridge is connected 913 * @next: the next bridge in the encoder chain 914 * @of_node: device node pointer to the bridge 915 * @list: to keep track of all added bridges 916 * @base: base mode object 917 * @funcs: control functions 918 * @driver_private: pointer to the bridge driver's internal context 919 */ 920 struct drm_bridge { 921 struct drm_device *dev; 922 struct drm_encoder *encoder; 923 struct drm_bridge *next; 924 #ifdef CONFIG_OF 925 struct device_node *of_node; 926 #endif 927 struct list_head list; 928 929 const struct drm_bridge_funcs *funcs; 930 void *driver_private; 931 }; 932 933 /** 934 * struct drm_atomic_state - the global state object for atomic updates 935 * @dev: parent DRM device 936 * @allow_modeset: allow full modeset 937 * @legacy_cursor_update: hint to enforce legacy cursor ioctl semantics 938 * @planes: pointer to array of plane pointers 939 * @plane_states: pointer to array of plane states pointers 940 * @crtcs: pointer to array of CRTC pointers 941 * @crtc_states: pointer to array of CRTC states pointers 942 * @num_connector: size of the @connectors and @connector_states arrays 943 * @connectors: pointer to array of connector pointers 944 * @connector_states: pointer to array of connector states pointers 945 * @acquire_ctx: acquire context for this atomic modeset state update 946 */ 947 struct drm_atomic_state { 948 struct drm_device *dev; 949 bool allow_modeset : 1; 950 bool legacy_cursor_update : 1; 951 struct drm_plane **planes; 952 struct drm_plane_state **plane_states; 953 struct drm_crtc **crtcs; 954 struct drm_crtc_state **crtc_states; 955 int num_connector; 956 struct drm_connector **connectors; 957 struct drm_connector_state **connector_states; 958 959 struct drm_modeset_acquire_ctx *acquire_ctx; 960 }; 961 962 963 /** 964 * struct drm_mode_set - new values for a CRTC config change 965 * @fb: framebuffer to use for new config 966 * @crtc: CRTC whose configuration we're about to change 967 * @mode: mode timings to use 968 * @x: position of this CRTC relative to @fb 969 * @y: position of this CRTC relative to @fb 970 * @connectors: array of connectors to drive with this CRTC if possible 971 * @num_connectors: size of @connectors array 972 * 973 * Represents a single crtc the connectors that it drives with what mode 974 * and from which framebuffer it scans out from. 975 * 976 * This is used to set modes. 977 */ 978 struct drm_mode_set { 979 struct drm_framebuffer *fb; 980 struct drm_crtc *crtc; 981 struct drm_display_mode *mode; 982 983 uint32_t x; 984 uint32_t y; 985 986 struct drm_connector **connectors; 987 size_t num_connectors; 988 }; 989 990 /** 991 * struct drm_mode_config_funcs - basic driver provided mode setting functions 992 * @fb_create: create a new framebuffer object 993 * @output_poll_changed: function to handle output configuration changes 994 * @atomic_check: check whether a given atomic state update is possible 995 * @atomic_commit: commit an atomic state update previously verified with 996 * atomic_check() 997 * @atomic_state_alloc: allocate a new atomic state 998 * @atomic_state_clear: clear the atomic state 999 * @atomic_state_free: free the atomic state 1000 * 1001 * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that 1002 * involve drivers. 1003 */ 1004 struct drm_mode_config_funcs { 1005 struct drm_framebuffer *(*fb_create)(struct drm_device *dev, 1006 struct drm_file *file_priv, 1007 struct drm_mode_fb_cmd2 *mode_cmd); 1008 void (*output_poll_changed)(struct drm_device *dev); 1009 1010 int (*atomic_check)(struct drm_device *dev, 1011 struct drm_atomic_state *a); 1012 int (*atomic_commit)(struct drm_device *dev, 1013 struct drm_atomic_state *a, 1014 bool async); 1015 struct drm_atomic_state *(*atomic_state_alloc)(struct drm_device *dev); 1016 void (*atomic_state_clear)(struct drm_atomic_state *state); 1017 void (*atomic_state_free)(struct drm_atomic_state *state); 1018 }; 1019 1020 /** 1021 * struct drm_mode_group - group of mode setting resources for potential sub-grouping 1022 * @num_crtcs: CRTC count 1023 * @num_encoders: encoder count 1024 * @num_connectors: connector count 1025 * @num_bridges: bridge count 1026 * @id_list: list of KMS object IDs in this group 1027 * 1028 * Currently this simply tracks the global mode setting state. But in the 1029 * future it could allow groups of objects to be set aside into independent 1030 * control groups for use by different user level processes (e.g. two X servers 1031 * running simultaneously on different heads, each with their own mode 1032 * configuration and freedom of mode setting). 1033 */ 1034 struct drm_mode_group { 1035 uint32_t num_crtcs; 1036 uint32_t num_encoders; 1037 uint32_t num_connectors; 1038 1039 /* list of object IDs for this group */ 1040 uint32_t *id_list; 1041 }; 1042 1043 /** 1044 * struct drm_mode_config - Mode configuration control structure 1045 * @mutex: mutex protecting KMS related lists and structures 1046 * @connection_mutex: ww mutex protecting connector state and routing 1047 * @acquire_ctx: global implicit acquire context used by atomic drivers for 1048 * legacy ioctls 1049 * @idr_mutex: mutex for KMS ID allocation and management 1050 * @crtc_idr: main KMS ID tracking object 1051 * @fb_lock: mutex to protect fb state and lists 1052 * @num_fb: number of fbs available 1053 * @fb_list: list of framebuffers available 1054 * @num_connector: number of connectors on this device 1055 * @connector_list: list of connector objects 1056 * @num_encoder: number of encoders on this device 1057 * @encoder_list: list of encoder objects 1058 * @num_overlay_plane: number of overlay planes on this device 1059 * @num_total_plane: number of universal (i.e. with primary/curso) planes on this device 1060 * @plane_list: list of plane objects 1061 * @num_crtc: number of CRTCs on this device 1062 * @crtc_list: list of CRTC objects 1063 * @property_list: list of property objects 1064 * @min_width: minimum pixel width on this device 1065 * @min_height: minimum pixel height on this device 1066 * @max_width: maximum pixel width on this device 1067 * @max_height: maximum pixel height on this device 1068 * @funcs: core driver provided mode setting functions 1069 * @fb_base: base address of the framebuffer 1070 * @poll_enabled: track polling support for this device 1071 * @poll_running: track polling status for this device 1072 * @output_poll_work: delayed work for polling in process context 1073 * @property_blob_list: list of all the blob property objects 1074 * @blob_lock: mutex for blob property allocation and management 1075 * @*_property: core property tracking 1076 * @preferred_depth: preferred RBG pixel depth, used by fb helpers 1077 * @prefer_shadow: hint to userspace to prefer shadow-fb rendering 1078 * @async_page_flip: does this device support async flips on the primary plane? 1079 * @cursor_width: hint to userspace for max cursor width 1080 * @cursor_height: hint to userspace for max cursor height 1081 * 1082 * Core mode resource tracking structure. All CRTC, encoders, and connectors 1083 * enumerated by the driver are added here, as are global properties. Some 1084 * global restrictions are also here, e.g. dimension restrictions. 1085 */ 1086 struct drm_mode_config { 1087 struct lock mutex; /* protects configuration (mode lists etc.) */ 1088 struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */ 1089 struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */ 1090 struct lock idr_mutex; /* for IDR management */ 1091 struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */ 1092 struct idr tile_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */ 1093 /* this is limited to one for now */ 1094 1095 struct lock fb_lock; /* proctects global and per-file fb lists */ 1096 int num_fb; 1097 struct list_head fb_list; 1098 1099 int num_connector; 1100 struct list_head connector_list; 1101 int num_encoder; 1102 struct list_head encoder_list; 1103 1104 /* 1105 * Track # of overlay planes separately from # of total planes. By 1106 * default we only advertise overlay planes to userspace; if userspace 1107 * sets the "universal plane" capability bit, we'll go ahead and 1108 * expose all planes. 1109 */ 1110 int num_overlay_plane; 1111 int num_total_plane; 1112 struct list_head plane_list; 1113 1114 int num_crtc; 1115 struct list_head crtc_list; 1116 1117 struct list_head property_list; 1118 1119 int min_width, min_height; 1120 int max_width, max_height; 1121 const struct drm_mode_config_funcs *funcs; 1122 resource_size_t fb_base; 1123 1124 /* output poll support */ 1125 bool poll_enabled; 1126 bool poll_running; 1127 bool delayed_event; 1128 struct delayed_work output_poll_work; 1129 1130 struct lock blob_lock; 1131 1132 /* pointers to standard properties */ 1133 struct list_head property_blob_list; 1134 struct drm_property *edid_property; 1135 struct drm_property *dpms_property; 1136 struct drm_property *path_property; 1137 struct drm_property *tile_property; 1138 struct drm_property *plane_type_property; 1139 struct drm_property *rotation_property; 1140 struct drm_property *prop_src_x; 1141 struct drm_property *prop_src_y; 1142 struct drm_property *prop_src_w; 1143 struct drm_property *prop_src_h; 1144 struct drm_property *prop_crtc_x; 1145 struct drm_property *prop_crtc_y; 1146 struct drm_property *prop_crtc_w; 1147 struct drm_property *prop_crtc_h; 1148 struct drm_property *prop_fb_id; 1149 struct drm_property *prop_crtc_id; 1150 struct drm_property *prop_active; 1151 struct drm_property *prop_mode_id; 1152 1153 /* DVI-I properties */ 1154 struct drm_property *dvi_i_subconnector_property; 1155 struct drm_property *dvi_i_select_subconnector_property; 1156 1157 /* TV properties */ 1158 struct drm_property *tv_subconnector_property; 1159 struct drm_property *tv_select_subconnector_property; 1160 struct drm_property *tv_mode_property; 1161 struct drm_property *tv_left_margin_property; 1162 struct drm_property *tv_right_margin_property; 1163 struct drm_property *tv_top_margin_property; 1164 struct drm_property *tv_bottom_margin_property; 1165 struct drm_property *tv_brightness_property; 1166 struct drm_property *tv_contrast_property; 1167 struct drm_property *tv_flicker_reduction_property; 1168 struct drm_property *tv_overscan_property; 1169 struct drm_property *tv_saturation_property; 1170 struct drm_property *tv_hue_property; 1171 1172 /* Optional properties */ 1173 struct drm_property *scaling_mode_property; 1174 struct drm_property *aspect_ratio_property; 1175 struct drm_property *dirty_info_property; 1176 1177 /* properties for virtual machine layout */ 1178 struct drm_property *suggested_x_property; 1179 struct drm_property *suggested_y_property; 1180 1181 /* dumb ioctl parameters */ 1182 uint32_t preferred_depth, prefer_shadow; 1183 1184 /* whether async page flip is supported or not */ 1185 bool async_page_flip; 1186 1187 /* whether the driver supports fb modifiers */ 1188 bool allow_fb_modifiers; 1189 1190 /* cursor size */ 1191 uint32_t cursor_width, cursor_height; 1192 }; 1193 1194 /** 1195 * drm_for_each_plane_mask - iterate over planes specified by bitmask 1196 * @plane: the loop cursor 1197 * @dev: the DRM device 1198 * @plane_mask: bitmask of plane indices 1199 * 1200 * Iterate over all planes specified by bitmask. 1201 */ 1202 #define drm_for_each_plane_mask(plane, dev, plane_mask) \ 1203 list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \ 1204 if ((plane_mask) & (1 << drm_plane_index(plane))) 1205 1206 1207 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base) 1208 #define obj_to_connector(x) container_of(x, struct drm_connector, base) 1209 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base) 1210 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base) 1211 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base) 1212 #define obj_to_property(x) container_of(x, struct drm_property, base) 1213 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base) 1214 #define obj_to_plane(x) container_of(x, struct drm_plane, base) 1215 1216 struct drm_prop_enum_list { 1217 int type; 1218 char *name; 1219 }; 1220 1221 extern int drm_crtc_init_with_planes(struct drm_device *dev, 1222 struct drm_crtc *crtc, 1223 struct drm_plane *primary, 1224 struct drm_plane *cursor, 1225 const struct drm_crtc_funcs *funcs); 1226 extern void drm_crtc_cleanup(struct drm_crtc *crtc); 1227 extern unsigned int drm_crtc_index(struct drm_crtc *crtc); 1228 1229 /** 1230 * drm_crtc_mask - find the mask of a registered CRTC 1231 * @crtc: CRTC to find mask for 1232 * 1233 * Given a registered CRTC, return the mask bit of that CRTC for an 1234 * encoder's possible_crtcs field. 1235 */ 1236 static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc) 1237 { 1238 return 1 << drm_crtc_index(crtc); 1239 } 1240 1241 extern void drm_connector_ida_init(void); 1242 extern void drm_connector_ida_destroy(void); 1243 extern int drm_connector_init(struct drm_device *dev, 1244 struct drm_connector *connector, 1245 const struct drm_connector_funcs *funcs, 1246 int connector_type); 1247 int drm_connector_register(struct drm_connector *connector); 1248 void drm_connector_unregister(struct drm_connector *connector); 1249 1250 extern void drm_connector_cleanup(struct drm_connector *connector); 1251 extern unsigned int drm_connector_index(struct drm_connector *connector); 1252 /* helper to unplug all connectors from sysfs for device */ 1253 extern void drm_connector_unplug_all(struct drm_device *dev); 1254 1255 extern int drm_bridge_add(struct drm_bridge *bridge); 1256 extern void drm_bridge_remove(struct drm_bridge *bridge); 1257 extern struct drm_bridge *of_drm_find_bridge(struct device_node *np); 1258 extern int drm_bridge_attach(struct drm_device *dev, struct drm_bridge *bridge); 1259 1260 bool drm_bridge_mode_fixup(struct drm_bridge *bridge, 1261 const struct drm_display_mode *mode, 1262 struct drm_display_mode *adjusted_mode); 1263 void drm_bridge_disable(struct drm_bridge *bridge); 1264 void drm_bridge_post_disable(struct drm_bridge *bridge); 1265 void drm_bridge_mode_set(struct drm_bridge *bridge, 1266 struct drm_display_mode *mode, 1267 struct drm_display_mode *adjusted_mode); 1268 void drm_bridge_pre_enable(struct drm_bridge *bridge); 1269 void drm_bridge_enable(struct drm_bridge *bridge); 1270 1271 extern int drm_encoder_init(struct drm_device *dev, 1272 struct drm_encoder *encoder, 1273 const struct drm_encoder_funcs *funcs, 1274 int encoder_type); 1275 1276 /** 1277 * drm_encoder_crtc_ok - can a given crtc drive a given encoder? 1278 * @encoder: encoder to test 1279 * @crtc: crtc to test 1280 * 1281 * Return false if @encoder can't be driven by @crtc, true otherwise. 1282 */ 1283 static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder, 1284 struct drm_crtc *crtc) 1285 { 1286 return !!(encoder->possible_crtcs & drm_crtc_mask(crtc)); 1287 } 1288 1289 extern int drm_universal_plane_init(struct drm_device *dev, 1290 struct drm_plane *plane, 1291 unsigned long possible_crtcs, 1292 const struct drm_plane_funcs *funcs, 1293 const uint32_t *formats, 1294 uint32_t format_count, 1295 enum drm_plane_type type); 1296 extern int drm_plane_init(struct drm_device *dev, 1297 struct drm_plane *plane, 1298 unsigned long possible_crtcs, 1299 const struct drm_plane_funcs *funcs, 1300 const uint32_t *formats, uint32_t format_count, 1301 bool is_primary); 1302 extern void drm_plane_cleanup(struct drm_plane *plane); 1303 extern unsigned int drm_plane_index(struct drm_plane *plane); 1304 extern struct drm_plane * drm_plane_from_index(struct drm_device *dev, int idx); 1305 extern void drm_plane_force_disable(struct drm_plane *plane); 1306 extern int drm_plane_check_pixel_format(const struct drm_plane *plane, 1307 u32 format); 1308 extern void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, 1309 int *hdisplay, int *vdisplay); 1310 extern int drm_crtc_check_viewport(const struct drm_crtc *crtc, 1311 int x, int y, 1312 const struct drm_display_mode *mode, 1313 const struct drm_framebuffer *fb); 1314 1315 extern void drm_encoder_cleanup(struct drm_encoder *encoder); 1316 1317 extern const char *drm_get_connector_status_name(enum drm_connector_status status); 1318 extern const char *drm_get_subpixel_order_name(enum subpixel_order order); 1319 extern const char *drm_get_dpms_name(int val); 1320 extern const char *drm_get_dvi_i_subconnector_name(int val); 1321 extern const char *drm_get_dvi_i_select_name(int val); 1322 extern const char *drm_get_tv_subconnector_name(int val); 1323 extern const char *drm_get_tv_select_name(int val); 1324 extern void drm_fb_release(struct drm_file *file_priv); 1325 extern void drm_property_destroy_user_blobs(struct drm_device *dev, 1326 struct drm_file *file_priv); 1327 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group); 1328 extern void drm_mode_group_destroy(struct drm_mode_group *group); 1329 extern void drm_reinit_primary_mode_group(struct drm_device *dev); 1330 extern bool drm_probe_ddc(struct i2c_adapter *adapter); 1331 extern struct edid *drm_get_edid(struct drm_connector *connector, 1332 struct i2c_adapter *adapter); 1333 extern struct edid *drm_edid_duplicate(const struct edid *edid); 1334 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid); 1335 extern void drm_mode_config_init(struct drm_device *dev); 1336 extern void drm_mode_config_reset(struct drm_device *dev); 1337 extern void drm_mode_config_cleanup(struct drm_device *dev); 1338 1339 extern int drm_mode_connector_set_path_property(struct drm_connector *connector, 1340 const char *path); 1341 int drm_mode_connector_set_tile_property(struct drm_connector *connector); 1342 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector, 1343 const struct edid *edid); 1344 1345 extern int drm_display_info_set_bus_formats(struct drm_display_info *info, 1346 const u32 *formats, 1347 unsigned int num_formats); 1348 1349 static inline bool drm_property_type_is(struct drm_property *property, 1350 uint32_t type) 1351 { 1352 /* instanceof for props.. handles extended type vs original types: */ 1353 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) 1354 return (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) == type; 1355 return property->flags & type; 1356 } 1357 1358 static inline bool drm_property_type_valid(struct drm_property *property) 1359 { 1360 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) 1361 return !(property->flags & DRM_MODE_PROP_LEGACY_TYPE); 1362 return !!(property->flags & DRM_MODE_PROP_LEGACY_TYPE); 1363 } 1364 1365 extern int drm_object_property_set_value(struct drm_mode_object *obj, 1366 struct drm_property *property, 1367 uint64_t val); 1368 extern int drm_object_property_get_value(struct drm_mode_object *obj, 1369 struct drm_property *property, 1370 uint64_t *value); 1371 extern int drm_framebuffer_init(struct drm_device *dev, 1372 struct drm_framebuffer *fb, 1373 const struct drm_framebuffer_funcs *funcs); 1374 extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, 1375 uint32_t id); 1376 extern void drm_framebuffer_unreference(struct drm_framebuffer *fb); 1377 extern void drm_framebuffer_reference(struct drm_framebuffer *fb); 1378 extern void drm_framebuffer_remove(struct drm_framebuffer *fb); 1379 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb); 1380 extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb); 1381 1382 extern void drm_object_attach_property(struct drm_mode_object *obj, 1383 struct drm_property *property, 1384 uint64_t init_val); 1385 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags, 1386 const char *name, int num_values); 1387 extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 1388 const char *name, 1389 const struct drm_prop_enum_list *props, 1390 int num_values); 1391 struct drm_property *drm_property_create_bitmask(struct drm_device *dev, 1392 int flags, const char *name, 1393 const struct drm_prop_enum_list *props, 1394 int num_props, 1395 uint64_t supported_bits); 1396 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 1397 const char *name, 1398 uint64_t min, uint64_t max); 1399 struct drm_property *drm_property_create_signed_range(struct drm_device *dev, 1400 int flags, const char *name, 1401 int64_t min, int64_t max); 1402 struct drm_property *drm_property_create_object(struct drm_device *dev, 1403 int flags, const char *name, uint32_t type); 1404 struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, 1405 const char *name); 1406 struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, 1407 size_t length, 1408 const void *data); 1409 struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, 1410 uint32_t id); 1411 struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob); 1412 void drm_property_unreference_blob(struct drm_property_blob *blob); 1413 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property); 1414 extern int drm_property_add_enum(struct drm_property *property, int index, 1415 uint64_t value, const char *name); 1416 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev); 1417 extern int drm_mode_create_tv_properties(struct drm_device *dev, 1418 unsigned int num_modes, 1419 char *modes[]); 1420 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev); 1421 extern int drm_mode_create_aspect_ratio_property(struct drm_device *dev); 1422 extern int drm_mode_create_dirty_info_property(struct drm_device *dev); 1423 extern int drm_mode_create_suggested_offset_properties(struct drm_device *dev); 1424 extern bool drm_property_change_valid_get(struct drm_property *property, 1425 uint64_t value, struct drm_mode_object **ref); 1426 extern void drm_property_change_valid_put(struct drm_property *property, 1427 struct drm_mode_object *ref); 1428 1429 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector, 1430 struct drm_encoder *encoder); 1431 extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 1432 int gamma_size); 1433 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, 1434 uint32_t id, uint32_t type); 1435 1436 /* IOCTLs */ 1437 extern int drm_mode_getresources(struct drm_device *dev, 1438 void *data, struct drm_file *file_priv); 1439 extern int drm_mode_getplane_res(struct drm_device *dev, void *data, 1440 struct drm_file *file_priv); 1441 extern int drm_mode_getcrtc(struct drm_device *dev, 1442 void *data, struct drm_file *file_priv); 1443 extern int drm_mode_getconnector(struct drm_device *dev, 1444 void *data, struct drm_file *file_priv); 1445 extern int drm_mode_set_config_internal(struct drm_mode_set *set); 1446 extern int drm_mode_setcrtc(struct drm_device *dev, 1447 void *data, struct drm_file *file_priv); 1448 extern int drm_mode_getplane(struct drm_device *dev, 1449 void *data, struct drm_file *file_priv); 1450 extern int drm_mode_setplane(struct drm_device *dev, 1451 void *data, struct drm_file *file_priv); 1452 extern int drm_mode_cursor_ioctl(struct drm_device *dev, 1453 void *data, struct drm_file *file_priv); 1454 extern int drm_mode_cursor2_ioctl(struct drm_device *dev, 1455 void *data, struct drm_file *file_priv); 1456 extern int drm_mode_addfb(struct drm_device *dev, 1457 void *data, struct drm_file *file_priv); 1458 extern int drm_mode_addfb2(struct drm_device *dev, 1459 void *data, struct drm_file *file_priv); 1460 extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth); 1461 extern int drm_mode_rmfb(struct drm_device *dev, 1462 void *data, struct drm_file *file_priv); 1463 extern int drm_mode_getfb(struct drm_device *dev, 1464 void *data, struct drm_file *file_priv); 1465 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 1466 void *data, struct drm_file *file_priv); 1467 1468 extern int drm_mode_getproperty_ioctl(struct drm_device *dev, 1469 void *data, struct drm_file *file_priv); 1470 extern int drm_mode_getblob_ioctl(struct drm_device *dev, 1471 void *data, struct drm_file *file_priv); 1472 extern int drm_mode_createblob_ioctl(struct drm_device *dev, 1473 void *data, struct drm_file *file_priv); 1474 extern int drm_mode_destroyblob_ioctl(struct drm_device *dev, 1475 void *data, struct drm_file *file_priv); 1476 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 1477 void *data, struct drm_file *file_priv); 1478 extern int drm_mode_getencoder(struct drm_device *dev, 1479 void *data, struct drm_file *file_priv); 1480 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev, 1481 void *data, struct drm_file *file_priv); 1482 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev, 1483 void *data, struct drm_file *file_priv); 1484 extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match); 1485 extern enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code); 1486 extern bool drm_detect_hdmi_monitor(struct edid *edid); 1487 extern bool drm_detect_monitor_audio(struct edid *edid); 1488 extern bool drm_rgb_quant_range_selectable(struct edid *edid); 1489 extern int drm_mode_page_flip_ioctl(struct drm_device *dev, 1490 void *data, struct drm_file *file_priv); 1491 extern int drm_add_modes_noedid(struct drm_connector *connector, 1492 int hdisplay, int vdisplay); 1493 extern void drm_set_preferred_mode(struct drm_connector *connector, 1494 int hpref, int vpref); 1495 1496 extern int drm_edid_header_is_valid(const u8 *raw_edid); 1497 extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid, 1498 bool *edid_corrupt); 1499 extern bool drm_edid_is_valid(struct edid *edid); 1500 1501 extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, 1502 char topology[8]); 1503 extern struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, 1504 char topology[8]); 1505 extern void drm_mode_put_tile_group(struct drm_device *dev, 1506 struct drm_tile_group *tg); 1507 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev, 1508 int hsize, int vsize, int fresh, 1509 bool rb); 1510 1511 extern int drm_mode_create_dumb_ioctl(struct drm_device *dev, 1512 void *data, struct drm_file *file_priv); 1513 extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 1514 void *data, struct drm_file *file_priv); 1515 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 1516 void *data, struct drm_file *file_priv); 1517 extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, 1518 struct drm_file *file_priv); 1519 extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, 1520 struct drm_file *file_priv); 1521 extern int drm_mode_plane_set_obj_prop(struct drm_plane *plane, 1522 struct drm_property *property, 1523 uint64_t value); 1524 1525 extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, 1526 int *bpp); 1527 extern int drm_format_num_planes(uint32_t format); 1528 extern int drm_format_plane_cpp(uint32_t format, int plane); 1529 extern int drm_format_horz_chroma_subsampling(uint32_t format); 1530 extern int drm_format_vert_chroma_subsampling(uint32_t format); 1531 extern const char *drm_get_format_name(uint32_t format); 1532 extern struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, 1533 unsigned int supported_rotations); 1534 extern unsigned int drm_rotation_simplify(unsigned int rotation, 1535 unsigned int supported_rotations); 1536 1537 /* Helpers */ 1538 1539 static inline struct drm_plane *drm_plane_find(struct drm_device *dev, 1540 uint32_t id) 1541 { 1542 struct drm_mode_object *mo; 1543 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PLANE); 1544 return mo ? obj_to_plane(mo) : NULL; 1545 } 1546 1547 static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev, 1548 uint32_t id) 1549 { 1550 struct drm_mode_object *mo; 1551 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CRTC); 1552 return mo ? obj_to_crtc(mo) : NULL; 1553 } 1554 1555 static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev, 1556 uint32_t id) 1557 { 1558 struct drm_mode_object *mo; 1559 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER); 1560 return mo ? obj_to_encoder(mo) : NULL; 1561 } 1562 1563 static inline struct drm_connector *drm_connector_find(struct drm_device *dev, 1564 uint32_t id) 1565 { 1566 struct drm_mode_object *mo; 1567 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CONNECTOR); 1568 return mo ? obj_to_connector(mo) : NULL; 1569 } 1570 1571 static inline struct drm_property *drm_property_find(struct drm_device *dev, 1572 uint32_t id) 1573 { 1574 struct drm_mode_object *mo; 1575 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PROPERTY); 1576 return mo ? obj_to_property(mo) : NULL; 1577 } 1578 1579 /* Plane list iterator for legacy (overlay only) planes. */ 1580 #define drm_for_each_legacy_plane(plane, planelist) \ 1581 list_for_each_entry(plane, planelist, head) \ 1582 if (plane->type == DRM_PLANE_TYPE_OVERLAY) 1583 1584 #define drm_for_each_plane(plane, dev) \ 1585 list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) 1586 1587 #define drm_for_each_crtc(crtc, dev) \ 1588 list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head) 1589 1590 #define drm_for_each_connector(connector, dev) \ 1591 list_for_each_entry(connector, &(dev)->mode_config.connector_list, head) 1592 1593 #define drm_for_each_encoder(encoder, dev) \ 1594 list_for_each_entry(encoder, &(dev)->mode_config.encoder_list, head) 1595 1596 #define drm_for_each_fb(fb, dev) \ 1597 list_for_each_entry(fb, &(dev)->mode_config.fb_list, head) 1598 1599 #endif /* __DRM_CRTC_H__ */ 1600