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