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_MASK 0x0f 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_MASK (~DRM_ROTATE_MASK) 94 #define DRM_REFLECT_X 4 95 #define DRM_REFLECT_Y 5 96 97 enum drm_connector_force { 98 DRM_FORCE_UNSPECIFIED, 99 DRM_FORCE_OFF, 100 DRM_FORCE_ON, /* force on analog part normally */ 101 DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */ 102 }; 103 104 #include <drm/drm_modes.h> 105 106 enum drm_connector_status { 107 connector_status_connected = 1, 108 connector_status_disconnected = 2, 109 connector_status_unknown = 3, 110 }; 111 112 enum subpixel_order { 113 SubPixelUnknown = 0, 114 SubPixelHorizontalRGB, 115 SubPixelHorizontalBGR, 116 SubPixelVerticalRGB, 117 SubPixelVerticalBGR, 118 SubPixelNone, 119 }; 120 121 #define DRM_COLOR_FORMAT_RGB444 (1<<0) 122 #define DRM_COLOR_FORMAT_YCRCB444 (1<<1) 123 #define DRM_COLOR_FORMAT_YCRCB422 (1<<2) 124 /* 125 * Describes a given display (e.g. CRT or flat panel) and its limitations. 126 */ 127 struct drm_display_info { 128 char name[DRM_DISPLAY_INFO_LEN]; 129 130 /* Physical size */ 131 unsigned int width_mm; 132 unsigned int height_mm; 133 134 /* Clock limits FIXME: storage format */ 135 unsigned int min_vfreq, max_vfreq; 136 unsigned int min_hfreq, max_hfreq; 137 unsigned int pixel_clock; 138 unsigned int bpc; 139 140 enum subpixel_order subpixel_order; 141 u32 color_formats; 142 143 u32 *bus_formats; 144 unsigned int num_bus_formats; 145 146 /* Mask of supported hdmi deep color modes */ 147 u8 edid_hdmi_dc_modes; 148 149 u8 cea_rev; 150 }; 151 152 /* data corresponds to displayid vend/prod/serial */ 153 struct drm_tile_group { 154 struct kref refcount; 155 struct drm_device *dev; 156 int id; 157 u8 group_data[8]; 158 }; 159 160 struct drm_framebuffer_funcs { 161 /* note: use drm_framebuffer_remove() */ 162 void (*destroy)(struct drm_framebuffer *framebuffer); 163 int (*create_handle)(struct drm_framebuffer *fb, 164 struct drm_file *file_priv, 165 unsigned int *handle); 166 /* 167 * Optional callback for the dirty fb ioctl. 168 * 169 * Userspace can notify the driver via this callback 170 * that a area of the framebuffer has changed and should 171 * be flushed to the display hardware. 172 * 173 * See documentation in drm_mode.h for the struct 174 * drm_mode_fb_dirty_cmd for more information as all 175 * the semantics and arguments have a one to one mapping 176 * on this function. 177 */ 178 int (*dirty)(struct drm_framebuffer *framebuffer, 179 struct drm_file *file_priv, unsigned flags, 180 unsigned color, struct drm_clip_rect *clips, 181 unsigned num_clips); 182 }; 183 184 struct drm_framebuffer { 185 struct drm_device *dev; 186 /* 187 * Note that the fb is refcounted for the benefit of driver internals, 188 * for example some hw, disabling a CRTC/plane is asynchronous, and 189 * scanout does not actually complete until the next vblank. So some 190 * cleanup (like releasing the reference(s) on the backing GEM bo(s)) 191 * should be deferred. In cases like this, the driver would like to 192 * hold a ref to the fb even though it has already been removed from 193 * userspace perspective. 194 */ 195 struct kref refcount; 196 /* 197 * Place on the dev->mode_config.fb_list, access protected by 198 * dev->mode_config.fb_lock. 199 */ 200 struct list_head head; 201 struct drm_mode_object base; 202 const struct drm_framebuffer_funcs *funcs; 203 unsigned int pitches[4]; 204 unsigned int offsets[4]; 205 uint64_t modifier[4]; 206 unsigned int width; 207 unsigned int height; 208 /* depth can be 15 or 16 */ 209 unsigned int depth; 210 int bits_per_pixel; 211 int flags; 212 uint32_t pixel_format; /* fourcc format */ 213 struct list_head filp_head; 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 * @connector_mask: bitmask of (1 << drm_connector_index(connector)) of attached connectors 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 u32 connector_mask; 297 298 /* last_vblank_count: for vblank waits before cleanup */ 299 u32 last_vblank_count; 300 301 /* adjusted_mode: for use by helpers and drivers */ 302 struct drm_display_mode adjusted_mode; 303 304 struct drm_display_mode mode; 305 306 /* blob property to expose current mode to atomic userspace */ 307 struct drm_property_blob *mode_blob; 308 309 struct drm_pending_vblank_event *event; 310 311 struct drm_atomic_state *state; 312 }; 313 314 /** 315 * struct drm_crtc_funcs - control CRTCs for a given device 316 * @save: save CRTC state 317 * @restore: restore CRTC state 318 * @reset: reset CRTC after state has been invalidated (e.g. resume) 319 * @cursor_set: setup the cursor 320 * @cursor_set2: setup the cursor with hotspot, superseeds @cursor_set if set 321 * @cursor_move: move the cursor 322 * @gamma_set: specify color ramp for CRTC 323 * @destroy: deinit and free object 324 * @set_property: called when a property is changed 325 * @set_config: apply a new CRTC configuration 326 * @page_flip: initiate a page flip 327 * @atomic_duplicate_state: duplicate the atomic state for this CRTC 328 * @atomic_destroy_state: destroy an atomic state for this CRTC 329 * @atomic_set_property: set a property on an atomic state for this CRTC 330 * (do not call directly, use drm_atomic_crtc_set_property()) 331 * @atomic_get_property: get a property on an atomic state for this CRTC 332 * (do not call directly, use drm_atomic_crtc_get_property()) 333 * 334 * The drm_crtc_funcs structure is the central CRTC management structure 335 * in the DRM. Each CRTC controls one or more connectors (note that the name 336 * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc. 337 * connectors, not just CRTs). 338 * 339 * Each driver is responsible for filling out this structure at startup time, 340 * in addition to providing other modesetting features, like i2c and DDC 341 * bus accessors. 342 */ 343 struct drm_crtc_funcs { 344 /* Save CRTC state */ 345 void (*save)(struct drm_crtc *crtc); /* suspend? */ 346 /* Restore CRTC state */ 347 void (*restore)(struct drm_crtc *crtc); /* resume? */ 348 /* Reset CRTC state */ 349 void (*reset)(struct drm_crtc *crtc); 350 351 /* cursor controls */ 352 int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv, 353 uint32_t handle, uint32_t width, uint32_t height); 354 int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv, 355 uint32_t handle, uint32_t width, uint32_t height, 356 int32_t hot_x, int32_t hot_y); 357 int (*cursor_move)(struct drm_crtc *crtc, int x, int y); 358 359 /* Set gamma on the CRTC */ 360 void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b, 361 uint32_t start, uint32_t size); 362 /* Object destroy routine */ 363 void (*destroy)(struct drm_crtc *crtc); 364 365 int (*set_config)(struct drm_mode_set *set); 366 367 /* 368 * Flip to the given framebuffer. This implements the page 369 * flip ioctl described in drm_mode.h, specifically, the 370 * implementation must return immediately and block all 371 * rendering to the current fb until the flip has completed. 372 * If userspace set the event flag in the ioctl, the event 373 * argument will point to an event to send back when the flip 374 * completes, otherwise it will be NULL. 375 */ 376 int (*page_flip)(struct drm_crtc *crtc, 377 struct drm_framebuffer *fb, 378 struct drm_pending_vblank_event *event, 379 uint32_t flags); 380 381 int (*set_property)(struct drm_crtc *crtc, 382 struct drm_property *property, uint64_t val); 383 384 /* atomic update handling */ 385 struct drm_crtc_state *(*atomic_duplicate_state)(struct drm_crtc *crtc); 386 void (*atomic_destroy_state)(struct drm_crtc *crtc, 387 struct drm_crtc_state *state); 388 int (*atomic_set_property)(struct drm_crtc *crtc, 389 struct drm_crtc_state *state, 390 struct drm_property *property, 391 uint64_t val); 392 int (*atomic_get_property)(struct drm_crtc *crtc, 393 const struct drm_crtc_state *state, 394 struct drm_property *property, 395 uint64_t *val); 396 }; 397 398 /** 399 * struct drm_crtc - central CRTC control structure 400 * @dev: parent DRM device 401 * @port: OF node used by drm_of_find_possible_crtcs() 402 * @head: list management 403 * @mutex: per-CRTC locking 404 * @base: base KMS object for ID tracking etc. 405 * @primary: primary plane for this CRTC 406 * @cursor: cursor plane for this CRTC 407 * @cursor_x: current x position of the cursor, used for universal cursor planes 408 * @cursor_y: current y position of the cursor, used for universal cursor planes 409 * @enabled: is this CRTC enabled? 410 * @mode: current mode timings 411 * @hwmode: mode timings as programmed to hw regs 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 * @helper_private: mid-layer private data 418 * @properties: property tracking for this CRTC 419 * @state: current atomic state for this CRTC 420 * @acquire_ctx: per-CRTC implicit acquire context used by atomic drivers for 421 * legacy ioctls 422 * 423 * Each CRTC may have one or more connectors associated with it. This structure 424 * allows the CRTC to be controlled. 425 */ 426 struct drm_crtc { 427 struct drm_device *dev; 428 struct device_node *port; 429 struct list_head head; 430 431 char *name; 432 433 /* 434 * crtc mutex 435 * 436 * This provides a read lock for the overall crtc state (mode, dpms 437 * state, ...) and a write lock for everything which can be update 438 * without a full modeset (fb, cursor data, ...) 439 */ 440 struct drm_modeset_lock mutex; 441 442 struct drm_mode_object base; 443 444 /* primary and cursor planes for CRTC */ 445 struct drm_plane *primary; 446 struct drm_plane *cursor; 447 448 /* position of cursor plane on crtc */ 449 int cursor_x; 450 int cursor_y; 451 452 bool enabled; 453 454 /* Requested mode from modesetting. */ 455 struct drm_display_mode mode; 456 457 /* Programmed mode in hw, after adjustments for encoders, 458 * crtc, panel scaling etc. Needed for timestamping etc. 459 */ 460 struct drm_display_mode hwmode; 461 462 int x, y; 463 const struct drm_crtc_funcs *funcs; 464 465 /* CRTC gamma size for reporting to userspace */ 466 uint32_t gamma_size; 467 uint16_t *gamma_store; 468 469 /* if you are using the helper */ 470 const void *helper_private; 471 472 struct drm_object_properties properties; 473 474 struct drm_crtc_state *state; 475 476 /* 477 * For legacy crtc ioctls so that atomic drivers can get at the locking 478 * acquire context. 479 */ 480 struct drm_modeset_acquire_ctx *acquire_ctx; 481 }; 482 483 /** 484 * struct drm_connector_state - mutable connector state 485 * @connector: backpointer to the connector 486 * @crtc: CRTC to connect connector to, NULL if disabled 487 * @best_encoder: can be used by helpers and drivers to select the encoder 488 * @state: backpointer to global drm_atomic_state 489 */ 490 struct drm_connector_state { 491 struct drm_connector *connector; 492 493 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_connector() */ 494 495 struct drm_encoder *best_encoder; 496 497 struct drm_atomic_state *state; 498 }; 499 500 /** 501 * struct drm_connector_funcs - control connectors on a given device 502 * @dpms: set power state 503 * @save: save connector state 504 * @restore: restore connector state 505 * @reset: reset connector after state has been invalidated (e.g. resume) 506 * @detect: is this connector active? 507 * @fill_modes: fill mode list for this connector 508 * @set_property: property for this connector may need an update 509 * @destroy: make object go away 510 * @force: notify the driver that the connector is forced on 511 * @atomic_duplicate_state: duplicate the atomic state for this connector 512 * @atomic_destroy_state: destroy an atomic state for this connector 513 * @atomic_set_property: set a property on an atomic state for this connector 514 * (do not call directly, use drm_atomic_connector_set_property()) 515 * @atomic_get_property: get a property on an atomic state for this connector 516 * (do not call directly, use drm_atomic_connector_get_property()) 517 * 518 * Each CRTC may have one or more connectors attached to it. The functions 519 * below allow the core DRM code to control connectors, enumerate available modes, 520 * etc. 521 */ 522 struct drm_connector_funcs { 523 int (*dpms)(struct drm_connector *connector, int mode); 524 void (*save)(struct drm_connector *connector); 525 void (*restore)(struct drm_connector *connector); 526 void (*reset)(struct drm_connector *connector); 527 528 /* Check to see if anything is attached to the connector. 529 * @force is set to false whilst polling, true when checking the 530 * connector due to user request. @force can be used by the driver 531 * to avoid expensive, destructive operations during automated 532 * probing. 533 */ 534 enum drm_connector_status (*detect)(struct drm_connector *connector, 535 bool force); 536 int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height); 537 int (*set_property)(struct drm_connector *connector, struct drm_property *property, 538 uint64_t val); 539 void (*destroy)(struct drm_connector *connector); 540 void (*force)(struct drm_connector *connector); 541 542 /* atomic update handling */ 543 struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector); 544 void (*atomic_destroy_state)(struct drm_connector *connector, 545 struct drm_connector_state *state); 546 int (*atomic_set_property)(struct drm_connector *connector, 547 struct drm_connector_state *state, 548 struct drm_property *property, 549 uint64_t val); 550 int (*atomic_get_property)(struct drm_connector *connector, 551 const struct drm_connector_state *state, 552 struct drm_property *property, 553 uint64_t *val); 554 }; 555 556 /** 557 * struct drm_encoder_funcs - encoder controls 558 * @reset: reset state (e.g. at init or resume time) 559 * @destroy: cleanup and free associated data 560 * 561 * Encoders sit between CRTCs and connectors. 562 */ 563 struct drm_encoder_funcs { 564 void (*reset)(struct drm_encoder *encoder); 565 void (*destroy)(struct drm_encoder *encoder); 566 }; 567 568 #define DRM_CONNECTOR_MAX_ENCODER 3 569 570 /** 571 * struct drm_encoder - central DRM encoder structure 572 * @dev: parent DRM device 573 * @head: list management 574 * @base: base KMS object 575 * @name: encoder name 576 * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h 577 * @possible_crtcs: bitmask of potential CRTC bindings 578 * @possible_clones: bitmask of potential sibling encoders for cloning 579 * @crtc: currently bound CRTC 580 * @bridge: bridge associated to the encoder 581 * @funcs: control functions 582 * @helper_private: mid-layer private data 583 * 584 * CRTCs drive pixels to encoders, which convert them into signals 585 * appropriate for a given connector or set of connectors. 586 */ 587 struct drm_encoder { 588 struct drm_device *dev; 589 struct list_head head; 590 591 struct drm_mode_object base; 592 char *name; 593 int encoder_type; 594 uint32_t possible_crtcs; 595 uint32_t possible_clones; 596 597 struct drm_crtc *crtc; 598 struct drm_bridge *bridge; 599 const struct drm_encoder_funcs *funcs; 600 void *helper_private; 601 }; 602 603 /* should we poll this connector for connects and disconnects */ 604 /* hot plug detectable */ 605 #define DRM_CONNECTOR_POLL_HPD (1 << 0) 606 /* poll for connections */ 607 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1) 608 /* can cleanly poll for disconnections without flickering the screen */ 609 /* DACs should rarely do this without a lot of testing */ 610 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2) 611 612 #define MAX_ELD_BYTES 128 613 614 /** 615 * struct drm_connector - central DRM connector control structure 616 * @dev: parent DRM device 617 * @kdev: kernel device for sysfs attributes 618 * @attr: sysfs attributes 619 * @head: list management 620 * @base: base KMS object 621 * @name: connector name 622 * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h 623 * @connector_type_id: index into connector type enum 624 * @interlace_allowed: can this connector handle interlaced modes? 625 * @doublescan_allowed: can this connector handle doublescan? 626 * @stereo_allowed: can this connector handle stereo modes? 627 * @modes: modes available on this connector (from fill_modes() + user) 628 * @status: one of the drm_connector_status enums (connected, not, or unknown) 629 * @probed_modes: list of modes derived directly from the display 630 * @display_info: information about attached display (e.g. from EDID) 631 * @funcs: connector control functions 632 * @edid_blob_ptr: DRM property containing EDID if present 633 * @properties: property tracking for this connector 634 * @path_blob_ptr: DRM blob property data for the DP MST path property 635 * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling 636 * @dpms: current dpms state 637 * @helper_private: mid-layer private data 638 * @cmdline_mode: mode line parsed from the kernel cmdline for this connector 639 * @force: a %DRM_FORCE_<foo> state for forced mode sets 640 * @override_edid: has the EDID been overwritten through debugfs for testing? 641 * @encoder_ids: valid encoders for this connector 642 * @encoder: encoder driving this connector, if any 643 * @eld: EDID-like data, if present 644 * @dvi_dual: dual link DVI, if found 645 * @max_tmds_clock: max clock rate, if found 646 * @latency_present: AV delay info from ELD, if found 647 * @video_latency: video latency info from ELD, if found 648 * @audio_latency: audio latency info from ELD, if found 649 * @null_edid_counter: track sinks that give us all zeros for the EDID 650 * @bad_edid_counter: track sinks that give us an EDID with invalid checksum 651 * @edid_corrupt: indicates whether the last read EDID was corrupt 652 * @debugfs_entry: debugfs directory for this connector 653 * @state: current atomic state for this connector 654 * @has_tile: is this connector connected to a tiled monitor 655 * @tile_group: tile group for the connected monitor 656 * @tile_is_single_monitor: whether the tile is one monitor housing 657 * @num_h_tile: number of horizontal tiles in the tile group 658 * @num_v_tile: number of vertical tiles in the tile group 659 * @tile_h_loc: horizontal location of this tile 660 * @tile_v_loc: vertical location of this tile 661 * @tile_h_size: horizontal size of this tile. 662 * @tile_v_size: vertical size of this tile. 663 * 664 * Each connector may be connected to one or more CRTCs, or may be clonable by 665 * another connector if they can share a CRTC. Each connector also has a specific 666 * position in the broader display (referred to as a 'screen' though it could 667 * span multiple monitors). 668 */ 669 struct drm_connector { 670 struct drm_device *dev; 671 struct device *kdev; 672 struct device_attribute *attr; 673 struct list_head head; 674 675 struct drm_mode_object base; 676 677 char *name; 678 int connector_type; 679 int connector_type_id; 680 bool interlace_allowed; 681 bool doublescan_allowed; 682 bool stereo_allowed; 683 struct list_head modes; /* list of modes on this connector */ 684 685 enum drm_connector_status status; 686 687 /* these are modes added by probing with DDC or the BIOS */ 688 struct list_head probed_modes; 689 690 struct drm_display_info display_info; 691 const struct drm_connector_funcs *funcs; 692 693 struct drm_property_blob *edid_blob_ptr; 694 struct drm_object_properties properties; 695 696 struct drm_property_blob *path_blob_ptr; 697 698 struct drm_property_blob *tile_blob_ptr; 699 700 uint8_t polled; /* DRM_CONNECTOR_POLL_* */ 701 702 /* requested DPMS state */ 703 int dpms; 704 705 void *helper_private; 706 707 /* forced on connector */ 708 struct drm_cmdline_mode cmdline_mode; 709 enum drm_connector_force force; 710 bool override_edid; 711 uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER]; 712 struct drm_encoder *encoder; /* currently active encoder */ 713 714 /* EDID bits */ 715 uint8_t eld[MAX_ELD_BYTES]; 716 bool dvi_dual; 717 int max_tmds_clock; /* in MHz */ 718 bool latency_present[2]; 719 int video_latency[2]; /* [0]: progressive, [1]: interlaced */ 720 int audio_latency[2]; 721 int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */ 722 unsigned bad_edid_counter; 723 724 /* Flag for raw EDID header corruption - used in Displayport 725 * compliance testing - * Displayport Link CTS Core 1.2 rev1.1 4.2.2.6 726 */ 727 bool edid_corrupt; 728 729 struct dentry *debugfs_entry; 730 731 struct drm_connector_state *state; 732 733 /* DisplayID bits */ 734 bool has_tile; 735 struct drm_tile_group *tile_group; 736 bool tile_is_single_monitor; 737 738 uint8_t num_h_tile, num_v_tile; 739 uint8_t tile_h_loc, tile_v_loc; 740 uint16_t tile_h_size, tile_v_size; 741 }; 742 743 /** 744 * struct drm_plane_state - mutable plane state 745 * @plane: backpointer to the plane 746 * @crtc: currently bound CRTC, NULL if disabled 747 * @fb: currently bound framebuffer 748 * @fence: optional fence to wait for before scanning out @fb 749 * @crtc_x: left position of visible portion of plane on crtc 750 * @crtc_y: upper position of visible portion of plane on crtc 751 * @crtc_w: width of visible portion of plane on crtc 752 * @crtc_h: height of visible portion of plane on crtc 753 * @src_x: left position of visible portion of plane within 754 * plane (in 16.16) 755 * @src_y: upper position of visible portion of plane within 756 * plane (in 16.16) 757 * @src_w: width of visible portion of plane (in 16.16) 758 * @src_h: height of visible portion of plane (in 16.16) 759 * @state: backpointer to global drm_atomic_state 760 */ 761 struct drm_plane_state { 762 struct drm_plane *plane; 763 764 struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_plane() */ 765 struct drm_framebuffer *fb; /* do not write directly, use drm_atomic_set_fb_for_plane() */ 766 /* XXX: implement linux/fence.h first */ 767 /* struct fence *fence; */ 768 769 /* Signed dest location allows it to be partially off screen */ 770 int32_t crtc_x, crtc_y; 771 uint32_t crtc_w, crtc_h; 772 773 /* Source values are 16.16 fixed point */ 774 uint32_t src_x, src_y; 775 uint32_t src_h, src_w; 776 777 /* Plane rotation */ 778 unsigned int rotation; 779 780 struct drm_atomic_state *state; 781 }; 782 783 784 /** 785 * struct drm_plane_funcs - driver plane control functions 786 * @update_plane: update the plane configuration 787 * @disable_plane: shut down the plane 788 * @destroy: clean up plane resources 789 * @reset: reset plane after state has been invalidated (e.g. resume) 790 * @set_property: called when a property is changed 791 * @atomic_duplicate_state: duplicate the atomic state for this plane 792 * @atomic_destroy_state: destroy an atomic state for this plane 793 * @atomic_set_property: set a property on an atomic state for this plane 794 * (do not call directly, use drm_atomic_plane_set_property()) 795 * @atomic_get_property: get a property on an atomic state for this plane 796 * (do not call directly, use drm_atomic_plane_get_property()) 797 */ 798 struct drm_plane_funcs { 799 int (*update_plane)(struct drm_plane *plane, 800 struct drm_crtc *crtc, struct drm_framebuffer *fb, 801 int crtc_x, int crtc_y, 802 unsigned int crtc_w, unsigned int crtc_h, 803 uint32_t src_x, uint32_t src_y, 804 uint32_t src_w, uint32_t src_h); 805 int (*disable_plane)(struct drm_plane *plane); 806 void (*destroy)(struct drm_plane *plane); 807 void (*reset)(struct drm_plane *plane); 808 809 int (*set_property)(struct drm_plane *plane, 810 struct drm_property *property, uint64_t val); 811 812 /* atomic update handling */ 813 struct drm_plane_state *(*atomic_duplicate_state)(struct drm_plane *plane); 814 void (*atomic_destroy_state)(struct drm_plane *plane, 815 struct drm_plane_state *state); 816 int (*atomic_set_property)(struct drm_plane *plane, 817 struct drm_plane_state *state, 818 struct drm_property *property, 819 uint64_t val); 820 int (*atomic_get_property)(struct drm_plane *plane, 821 const struct drm_plane_state *state, 822 struct drm_property *property, 823 uint64_t *val); 824 }; 825 826 enum drm_plane_type { 827 DRM_PLANE_TYPE_OVERLAY, 828 DRM_PLANE_TYPE_PRIMARY, 829 DRM_PLANE_TYPE_CURSOR, 830 }; 831 832 /** 833 * struct drm_plane - central DRM plane control structure 834 * @dev: DRM device this plane belongs to 835 * @head: for list management 836 * @base: base mode object 837 * @possible_crtcs: pipes this plane can be bound to 838 * @format_types: array of formats supported by this plane 839 * @format_count: number of formats supported 840 * @format_default: driver hasn't supplied supported formats for the plane 841 * @crtc: currently bound CRTC 842 * @fb: currently bound fb 843 * @old_fb: Temporary tracking of the old fb while a modeset is ongoing. Used by 844 * drm_mode_set_config_internal() to implement correct refcounting. 845 * @funcs: helper functions 846 * @properties: property tracking for this plane 847 * @type: type of plane (overlay, primary, cursor) 848 * @state: current atomic state for this plane 849 */ 850 struct drm_plane { 851 struct drm_device *dev; 852 struct list_head head; 853 854 char *name; 855 856 struct drm_modeset_lock mutex; 857 858 struct drm_mode_object base; 859 860 uint32_t possible_crtcs; 861 uint32_t *format_types; 862 unsigned int format_count; 863 bool format_default; 864 865 struct drm_crtc *crtc; 866 struct drm_framebuffer *fb; 867 868 struct drm_framebuffer *old_fb; 869 870 const struct drm_plane_funcs *funcs; 871 872 struct drm_object_properties properties; 873 874 enum drm_plane_type type; 875 876 const void *helper_private; 877 878 struct drm_plane_state *state; 879 }; 880 881 /** 882 * struct drm_bridge_funcs - drm_bridge control functions 883 * @attach: Called during drm_bridge_attach 884 * @mode_fixup: Try to fixup (or reject entirely) proposed mode for this bridge 885 * @disable: Called right before encoder prepare, disables the bridge 886 * @post_disable: Called right after encoder prepare, for lockstepped disable 887 * @mode_set: Set this mode to the bridge 888 * @pre_enable: Called right before encoder commit, for lockstepped commit 889 * @enable: Called right after encoder commit, enables the bridge 890 */ 891 struct drm_bridge_funcs { 892 int (*attach)(struct drm_bridge *bridge); 893 bool (*mode_fixup)(struct drm_bridge *bridge, 894 const struct drm_display_mode *mode, 895 struct drm_display_mode *adjusted_mode); 896 void (*disable)(struct drm_bridge *bridge); 897 void (*post_disable)(struct drm_bridge *bridge); 898 void (*mode_set)(struct drm_bridge *bridge, 899 struct drm_display_mode *mode, 900 struct drm_display_mode *adjusted_mode); 901 void (*pre_enable)(struct drm_bridge *bridge); 902 void (*enable)(struct drm_bridge *bridge); 903 }; 904 905 /** 906 * struct drm_bridge - central DRM bridge control structure 907 * @dev: DRM device this bridge belongs to 908 * @encoder: encoder to which this bridge is connected 909 * @next: the next bridge in the encoder chain 910 * @of_node: device node pointer to the bridge 911 * @list: to keep track of all added bridges 912 * @funcs: control functions 913 * @driver_private: pointer to the bridge driver's internal context 914 */ 915 struct drm_bridge { 916 struct drm_device *dev; 917 struct drm_encoder *encoder; 918 struct drm_bridge *next; 919 #ifdef CONFIG_OF 920 struct device_node *of_node; 921 #endif 922 struct list_head list; 923 924 const struct drm_bridge_funcs *funcs; 925 void *driver_private; 926 }; 927 928 /** 929 * struct drm_atomic_state - the global state object for atomic updates 930 * @dev: parent DRM device 931 * @allow_modeset: allow full modeset 932 * @legacy_cursor_update: hint to enforce legacy cursor ioctl semantics 933 * @planes: pointer to array of plane pointers 934 * @plane_states: pointer to array of plane states pointers 935 * @crtcs: pointer to array of CRTC pointers 936 * @crtc_states: pointer to array of CRTC states pointers 937 * @num_connector: size of the @connectors and @connector_states arrays 938 * @connectors: pointer to array of connector pointers 939 * @connector_states: pointer to array of connector states pointers 940 * @acquire_ctx: acquire context for this atomic modeset state update 941 */ 942 struct drm_atomic_state { 943 struct drm_device *dev; 944 bool allow_modeset : 1; 945 bool legacy_cursor_update : 1; 946 struct drm_plane **planes; 947 struct drm_plane_state **plane_states; 948 struct drm_crtc **crtcs; 949 struct drm_crtc_state **crtc_states; 950 int num_connector; 951 struct drm_connector **connectors; 952 struct drm_connector_state **connector_states; 953 954 struct drm_modeset_acquire_ctx *acquire_ctx; 955 }; 956 957 958 /** 959 * struct drm_mode_set - new values for a CRTC config change 960 * @fb: framebuffer to use for new config 961 * @crtc: CRTC whose configuration we're about to change 962 * @mode: mode timings to use 963 * @x: position of this CRTC relative to @fb 964 * @y: position of this CRTC relative to @fb 965 * @connectors: array of connectors to drive with this CRTC if possible 966 * @num_connectors: size of @connectors array 967 * 968 * Represents a single crtc the connectors that it drives with what mode 969 * and from which framebuffer it scans out from. 970 * 971 * This is used to set modes. 972 */ 973 struct drm_mode_set { 974 struct drm_framebuffer *fb; 975 struct drm_crtc *crtc; 976 struct drm_display_mode *mode; 977 978 uint32_t x; 979 uint32_t y; 980 981 struct drm_connector **connectors; 982 size_t num_connectors; 983 }; 984 985 /** 986 * struct drm_mode_config_funcs - basic driver provided mode setting functions 987 * @fb_create: create a new framebuffer object 988 * @output_poll_changed: function to handle output configuration changes 989 * @atomic_check: check whether a given atomic state update is possible 990 * @atomic_commit: commit an atomic state update previously verified with 991 * atomic_check() 992 * @atomic_state_alloc: allocate a new atomic state 993 * @atomic_state_clear: clear the atomic state 994 * @atomic_state_free: free the atomic state 995 * 996 * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that 997 * involve drivers. 998 */ 999 struct drm_mode_config_funcs { 1000 struct drm_framebuffer *(*fb_create)(struct drm_device *dev, 1001 struct drm_file *file_priv, 1002 const struct drm_mode_fb_cmd2 *mode_cmd); 1003 void (*output_poll_changed)(struct drm_device *dev); 1004 1005 int (*atomic_check)(struct drm_device *dev, 1006 struct drm_atomic_state *a); 1007 int (*atomic_commit)(struct drm_device *dev, 1008 struct drm_atomic_state *a, 1009 bool async); 1010 struct drm_atomic_state *(*atomic_state_alloc)(struct drm_device *dev); 1011 void (*atomic_state_clear)(struct drm_atomic_state *state); 1012 void (*atomic_state_free)(struct drm_atomic_state *state); 1013 }; 1014 1015 /** 1016 * struct drm_mode_config - Mode configuration control structure 1017 * @mutex: mutex protecting KMS related lists and structures 1018 * @connection_mutex: ww mutex protecting connector state and routing 1019 * @acquire_ctx: global implicit acquire context used by atomic drivers for 1020 * legacy ioctls 1021 * @idr_mutex: mutex for KMS ID allocation and management 1022 * @crtc_idr: main KMS ID tracking object 1023 * @fb_lock: mutex to protect fb state and lists 1024 * @num_fb: number of fbs available 1025 * @fb_list: list of framebuffers available 1026 * @num_connector: number of connectors on this device 1027 * @connector_list: list of connector objects 1028 * @num_encoder: number of encoders on this device 1029 * @encoder_list: list of encoder objects 1030 * @num_overlay_plane: number of overlay planes on this device 1031 * @num_total_plane: number of universal (i.e. with primary/curso) planes on this device 1032 * @plane_list: list of plane objects 1033 * @num_crtc: number of CRTCs on this device 1034 * @crtc_list: list of CRTC objects 1035 * @property_list: list of property objects 1036 * @min_width: minimum pixel width on this device 1037 * @min_height: minimum pixel height on this device 1038 * @max_width: maximum pixel width on this device 1039 * @max_height: maximum pixel height on this device 1040 * @funcs: core driver provided mode setting functions 1041 * @fb_base: base address of the framebuffer 1042 * @poll_enabled: track polling support for this device 1043 * @poll_running: track polling status for this device 1044 * @output_poll_work: delayed work for polling in process context 1045 * @property_blob_list: list of all the blob property objects 1046 * @blob_lock: mutex for blob property allocation and management 1047 * @*_property: core property tracking 1048 * @preferred_depth: preferred RBG pixel depth, used by fb helpers 1049 * @prefer_shadow: hint to userspace to prefer shadow-fb rendering 1050 * @async_page_flip: does this device support async flips on the primary plane? 1051 * @cursor_width: hint to userspace for max cursor width 1052 * @cursor_height: hint to userspace for max cursor height 1053 * 1054 * Core mode resource tracking structure. All CRTC, encoders, and connectors 1055 * enumerated by the driver are added here, as are global properties. Some 1056 * global restrictions are also here, e.g. dimension restrictions. 1057 */ 1058 struct drm_mode_config { 1059 struct lock mutex; /* protects configuration (mode lists etc.) */ 1060 struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */ 1061 struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */ 1062 struct lock idr_mutex; /* for IDR management */ 1063 struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */ 1064 struct idr tile_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */ 1065 /* this is limited to one for now */ 1066 1067 struct lock fb_lock; /* proctects global and per-file fb lists */ 1068 int num_fb; 1069 struct list_head fb_list; 1070 1071 int num_connector; 1072 struct list_head connector_list; 1073 int num_encoder; 1074 struct list_head encoder_list; 1075 1076 /* 1077 * Track # of overlay planes separately from # of total planes. By 1078 * default we only advertise overlay planes to userspace; if userspace 1079 * sets the "universal plane" capability bit, we'll go ahead and 1080 * expose all planes. 1081 */ 1082 int num_overlay_plane; 1083 int num_total_plane; 1084 struct list_head plane_list; 1085 1086 int num_crtc; 1087 struct list_head crtc_list; 1088 1089 struct list_head property_list; 1090 1091 int min_width, min_height; 1092 int max_width, max_height; 1093 const struct drm_mode_config_funcs *funcs; 1094 resource_size_t fb_base; 1095 1096 /* output poll support */ 1097 bool poll_enabled; 1098 bool poll_running; 1099 bool delayed_event; 1100 struct delayed_work output_poll_work; 1101 1102 struct lock blob_lock; 1103 1104 /* pointers to standard properties */ 1105 struct list_head property_blob_list; 1106 struct drm_property *edid_property; 1107 struct drm_property *dpms_property; 1108 struct drm_property *path_property; 1109 struct drm_property *tile_property; 1110 struct drm_property *plane_type_property; 1111 struct drm_property *rotation_property; 1112 struct drm_property *prop_src_x; 1113 struct drm_property *prop_src_y; 1114 struct drm_property *prop_src_w; 1115 struct drm_property *prop_src_h; 1116 struct drm_property *prop_crtc_x; 1117 struct drm_property *prop_crtc_y; 1118 struct drm_property *prop_crtc_w; 1119 struct drm_property *prop_crtc_h; 1120 struct drm_property *prop_fb_id; 1121 struct drm_property *prop_crtc_id; 1122 struct drm_property *prop_active; 1123 struct drm_property *prop_mode_id; 1124 1125 /* DVI-I properties */ 1126 struct drm_property *dvi_i_subconnector_property; 1127 struct drm_property *dvi_i_select_subconnector_property; 1128 1129 /* TV properties */ 1130 struct drm_property *tv_subconnector_property; 1131 struct drm_property *tv_select_subconnector_property; 1132 struct drm_property *tv_mode_property; 1133 struct drm_property *tv_left_margin_property; 1134 struct drm_property *tv_right_margin_property; 1135 struct drm_property *tv_top_margin_property; 1136 struct drm_property *tv_bottom_margin_property; 1137 struct drm_property *tv_brightness_property; 1138 struct drm_property *tv_contrast_property; 1139 struct drm_property *tv_flicker_reduction_property; 1140 struct drm_property *tv_overscan_property; 1141 struct drm_property *tv_saturation_property; 1142 struct drm_property *tv_hue_property; 1143 1144 /* Optional properties */ 1145 struct drm_property *scaling_mode_property; 1146 struct drm_property *aspect_ratio_property; 1147 struct drm_property *dirty_info_property; 1148 1149 /* properties for virtual machine layout */ 1150 struct drm_property *suggested_x_property; 1151 struct drm_property *suggested_y_property; 1152 1153 /* dumb ioctl parameters */ 1154 uint32_t preferred_depth, prefer_shadow; 1155 1156 /* whether async page flip is supported or not */ 1157 bool async_page_flip; 1158 1159 /* whether the driver supports fb modifiers */ 1160 bool allow_fb_modifiers; 1161 1162 /* cursor size */ 1163 uint32_t cursor_width, cursor_height; 1164 }; 1165 1166 /** 1167 * drm_for_each_plane_mask - iterate over planes specified by bitmask 1168 * @plane: the loop cursor 1169 * @dev: the DRM device 1170 * @plane_mask: bitmask of plane indices 1171 * 1172 * Iterate over all planes specified by bitmask. 1173 */ 1174 #define drm_for_each_plane_mask(plane, dev, plane_mask) \ 1175 list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \ 1176 if ((plane_mask) & (1 << drm_plane_index(plane))) 1177 1178 1179 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base) 1180 #define obj_to_connector(x) container_of(x, struct drm_connector, base) 1181 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base) 1182 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base) 1183 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base) 1184 #define obj_to_property(x) container_of(x, struct drm_property, base) 1185 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base) 1186 #define obj_to_plane(x) container_of(x, struct drm_plane, base) 1187 1188 struct drm_prop_enum_list { 1189 int type; 1190 char *name; 1191 }; 1192 1193 extern 1194 int drm_crtc_init_with_planes(struct drm_device *dev, 1195 struct drm_crtc *crtc, 1196 struct drm_plane *primary, 1197 struct drm_plane *cursor, 1198 const struct drm_crtc_funcs *funcs, 1199 const char *name, ...); 1200 extern int drm_crtc_init(struct drm_device *dev, 1201 struct drm_crtc *crtc, 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 1249 int drm_encoder_init(struct drm_device *dev, 1250 struct drm_encoder *encoder, 1251 const struct drm_encoder_funcs *funcs, 1252 int encoder_type, const char *name, ...); 1253 1254 /** 1255 * drm_encoder_crtc_ok - can a given crtc drive a given encoder? 1256 * @encoder: encoder to test 1257 * @crtc: crtc to test 1258 * 1259 * Return false if @encoder can't be driven by @crtc, true otherwise. 1260 */ 1261 static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder, 1262 struct drm_crtc *crtc) 1263 { 1264 return !!(encoder->possible_crtcs & drm_crtc_mask(crtc)); 1265 } 1266 1267 extern 1268 int drm_universal_plane_init(struct drm_device *dev, 1269 struct drm_plane *plane, 1270 unsigned long possible_crtcs, 1271 const struct drm_plane_funcs *funcs, 1272 const uint32_t *formats, 1273 unsigned int format_count, 1274 enum drm_plane_type type, 1275 const char *name, ...); 1276 extern int drm_plane_init(struct drm_device *dev, 1277 struct drm_plane *plane, 1278 unsigned long possible_crtcs, 1279 const struct drm_plane_funcs *funcs, 1280 const uint32_t *formats, unsigned int format_count, 1281 bool is_primary); 1282 extern void drm_plane_cleanup(struct drm_plane *plane); 1283 extern unsigned int drm_plane_index(struct drm_plane *plane); 1284 extern struct drm_plane * drm_plane_from_index(struct drm_device *dev, int idx); 1285 extern void drm_plane_force_disable(struct drm_plane *plane); 1286 extern int drm_plane_check_pixel_format(const struct drm_plane *plane, 1287 u32 format); 1288 extern void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, 1289 int *hdisplay, int *vdisplay); 1290 extern int drm_crtc_check_viewport(const struct drm_crtc *crtc, 1291 int x, int y, 1292 const struct drm_display_mode *mode, 1293 const struct drm_framebuffer *fb); 1294 1295 extern void drm_encoder_cleanup(struct drm_encoder *encoder); 1296 1297 extern const char *drm_get_connector_status_name(enum drm_connector_status status); 1298 extern const char *drm_get_subpixel_order_name(enum subpixel_order order); 1299 extern const char *drm_get_dpms_name(int val); 1300 extern const char *drm_get_dvi_i_subconnector_name(int val); 1301 extern const char *drm_get_dvi_i_select_name(int val); 1302 extern const char *drm_get_tv_subconnector_name(int val); 1303 extern const char *drm_get_tv_select_name(int val); 1304 extern void drm_fb_release(struct drm_file *file_priv); 1305 extern void drm_property_destroy_user_blobs(struct drm_device *dev, 1306 struct drm_file *file_priv); 1307 extern bool drm_probe_ddc(struct i2c_adapter *adapter); 1308 extern struct edid *drm_get_edid(struct drm_connector *connector, 1309 struct i2c_adapter *adapter); 1310 extern struct edid *drm_get_edid_iic(struct drm_connector *connector, 1311 device_t adapter); 1312 extern struct edid *drm_edid_duplicate(const struct edid *edid); 1313 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid); 1314 extern void drm_mode_config_init(struct drm_device *dev); 1315 extern void drm_mode_config_reset(struct drm_device *dev); 1316 extern void drm_mode_config_cleanup(struct drm_device *dev); 1317 1318 extern int drm_mode_connector_set_path_property(struct drm_connector *connector, 1319 const char *path); 1320 int drm_mode_connector_set_tile_property(struct drm_connector *connector); 1321 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector, 1322 const struct edid *edid); 1323 1324 extern int drm_display_info_set_bus_formats(struct drm_display_info *info, 1325 const u32 *formats, 1326 unsigned int num_formats); 1327 1328 static inline bool drm_property_type_is(struct drm_property *property, 1329 uint32_t type) 1330 { 1331 /* instanceof for props.. handles extended type vs original types: */ 1332 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) 1333 return (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) == type; 1334 return property->flags & type; 1335 } 1336 1337 static inline bool drm_property_type_valid(struct drm_property *property) 1338 { 1339 if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) 1340 return !(property->flags & DRM_MODE_PROP_LEGACY_TYPE); 1341 return !!(property->flags & DRM_MODE_PROP_LEGACY_TYPE); 1342 } 1343 1344 extern int drm_object_property_set_value(struct drm_mode_object *obj, 1345 struct drm_property *property, 1346 uint64_t val); 1347 extern int drm_object_property_get_value(struct drm_mode_object *obj, 1348 struct drm_property *property, 1349 uint64_t *value); 1350 extern int drm_framebuffer_init(struct drm_device *dev, 1351 struct drm_framebuffer *fb, 1352 const struct drm_framebuffer_funcs *funcs); 1353 extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, 1354 uint32_t id); 1355 extern void drm_framebuffer_unreference(struct drm_framebuffer *fb); 1356 extern void drm_framebuffer_reference(struct drm_framebuffer *fb); 1357 extern void drm_framebuffer_remove(struct drm_framebuffer *fb); 1358 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb); 1359 extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb); 1360 1361 extern void drm_object_attach_property(struct drm_mode_object *obj, 1362 struct drm_property *property, 1363 uint64_t init_val); 1364 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags, 1365 const char *name, int num_values); 1366 extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 1367 const char *name, 1368 const struct drm_prop_enum_list *props, 1369 int num_values); 1370 struct drm_property *drm_property_create_bitmask(struct drm_device *dev, 1371 int flags, const char *name, 1372 const struct drm_prop_enum_list *props, 1373 int num_props, 1374 uint64_t supported_bits); 1375 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 1376 const char *name, 1377 uint64_t min, uint64_t max); 1378 struct drm_property *drm_property_create_signed_range(struct drm_device *dev, 1379 int flags, const char *name, 1380 int64_t min, int64_t max); 1381 struct drm_property *drm_property_create_object(struct drm_device *dev, 1382 int flags, const char *name, uint32_t type); 1383 struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, 1384 const char *name); 1385 struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, 1386 size_t length, 1387 const void *data); 1388 struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, 1389 uint32_t id); 1390 struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob); 1391 void drm_property_unreference_blob(struct drm_property_blob *blob); 1392 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property); 1393 extern int drm_property_add_enum(struct drm_property *property, int index, 1394 uint64_t value, const char *name); 1395 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev); 1396 extern int drm_mode_create_tv_properties(struct drm_device *dev, 1397 unsigned int num_modes, 1398 const char * const modes[]); 1399 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev); 1400 extern int drm_mode_create_aspect_ratio_property(struct drm_device *dev); 1401 extern int drm_mode_create_dirty_info_property(struct drm_device *dev); 1402 extern int drm_mode_create_suggested_offset_properties(struct drm_device *dev); 1403 extern bool drm_property_change_valid_get(struct drm_property *property, 1404 uint64_t value, struct drm_mode_object **ref); 1405 extern void drm_property_change_valid_put(struct drm_property *property, 1406 struct drm_mode_object *ref); 1407 1408 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector, 1409 struct drm_encoder *encoder); 1410 extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 1411 int gamma_size); 1412 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, 1413 uint32_t id, uint32_t type); 1414 1415 /* IOCTLs */ 1416 extern int drm_mode_getresources(struct drm_device *dev, 1417 void *data, struct drm_file *file_priv); 1418 extern int drm_mode_getplane_res(struct drm_device *dev, void *data, 1419 struct drm_file *file_priv); 1420 extern int drm_mode_getcrtc(struct drm_device *dev, 1421 void *data, struct drm_file *file_priv); 1422 extern int drm_mode_getconnector(struct drm_device *dev, 1423 void *data, struct drm_file *file_priv); 1424 extern int drm_mode_set_config_internal(struct drm_mode_set *set); 1425 extern int drm_mode_setcrtc(struct drm_device *dev, 1426 void *data, struct drm_file *file_priv); 1427 extern int drm_mode_getplane(struct drm_device *dev, 1428 void *data, struct drm_file *file_priv); 1429 extern int drm_mode_setplane(struct drm_device *dev, 1430 void *data, struct drm_file *file_priv); 1431 extern int drm_mode_cursor_ioctl(struct drm_device *dev, 1432 void *data, struct drm_file *file_priv); 1433 extern int drm_mode_cursor2_ioctl(struct drm_device *dev, 1434 void *data, struct drm_file *file_priv); 1435 extern int drm_mode_addfb(struct drm_device *dev, 1436 void *data, struct drm_file *file_priv); 1437 extern int drm_mode_addfb2(struct drm_device *dev, 1438 void *data, struct drm_file *file_priv); 1439 extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth); 1440 extern int drm_mode_rmfb(struct drm_device *dev, 1441 void *data, struct drm_file *file_priv); 1442 extern int drm_mode_getfb(struct drm_device *dev, 1443 void *data, struct drm_file *file_priv); 1444 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 1445 void *data, struct drm_file *file_priv); 1446 1447 extern int drm_mode_getproperty_ioctl(struct drm_device *dev, 1448 void *data, struct drm_file *file_priv); 1449 extern int drm_mode_getblob_ioctl(struct drm_device *dev, 1450 void *data, struct drm_file *file_priv); 1451 extern int drm_mode_createblob_ioctl(struct drm_device *dev, 1452 void *data, struct drm_file *file_priv); 1453 extern int drm_mode_destroyblob_ioctl(struct drm_device *dev, 1454 void *data, struct drm_file *file_priv); 1455 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 1456 void *data, struct drm_file *file_priv); 1457 extern int drm_mode_getencoder(struct drm_device *dev, 1458 void *data, struct drm_file *file_priv); 1459 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev, 1460 void *data, struct drm_file *file_priv); 1461 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev, 1462 void *data, struct drm_file *file_priv); 1463 extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match); 1464 extern enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code); 1465 extern bool drm_detect_hdmi_monitor(struct edid *edid); 1466 extern bool drm_detect_monitor_audio(struct edid *edid); 1467 extern bool drm_rgb_quant_range_selectable(struct edid *edid); 1468 extern int drm_mode_page_flip_ioctl(struct drm_device *dev, 1469 void *data, struct drm_file *file_priv); 1470 extern int drm_add_modes_noedid(struct drm_connector *connector, 1471 int hdisplay, int vdisplay); 1472 extern void drm_set_preferred_mode(struct drm_connector *connector, 1473 int hpref, int vpref); 1474 1475 extern int drm_edid_header_is_valid(const u8 *raw_edid); 1476 extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid, 1477 bool *edid_corrupt); 1478 extern bool drm_edid_is_valid(struct edid *edid); 1479 1480 extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, 1481 char topology[8]); 1482 extern struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, 1483 char topology[8]); 1484 extern void drm_mode_put_tile_group(struct drm_device *dev, 1485 struct drm_tile_group *tg); 1486 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev, 1487 int hsize, int vsize, int fresh, 1488 bool rb); 1489 1490 extern int drm_mode_create_dumb_ioctl(struct drm_device *dev, 1491 void *data, struct drm_file *file_priv); 1492 extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 1493 void *data, struct drm_file *file_priv); 1494 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 1495 void *data, struct drm_file *file_priv); 1496 extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, 1497 struct drm_file *file_priv); 1498 extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, 1499 struct drm_file *file_priv); 1500 extern int drm_mode_plane_set_obj_prop(struct drm_plane *plane, 1501 struct drm_property *property, 1502 uint64_t value); 1503 1504 extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, 1505 int *bpp); 1506 extern int drm_format_num_planes(uint32_t format); 1507 extern int drm_format_plane_cpp(uint32_t format, int plane); 1508 extern int drm_format_horz_chroma_subsampling(uint32_t format); 1509 extern int drm_format_vert_chroma_subsampling(uint32_t format); 1510 extern const char *drm_get_format_name(uint32_t format); 1511 extern struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, 1512 unsigned int supported_rotations); 1513 extern unsigned int drm_rotation_simplify(unsigned int rotation, 1514 unsigned int supported_rotations); 1515 1516 /* Helpers */ 1517 1518 static inline struct drm_plane *drm_plane_find(struct drm_device *dev, 1519 uint32_t id) 1520 { 1521 struct drm_mode_object *mo; 1522 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PLANE); 1523 return mo ? obj_to_plane(mo) : NULL; 1524 } 1525 1526 static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev, 1527 uint32_t id) 1528 { 1529 struct drm_mode_object *mo; 1530 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CRTC); 1531 return mo ? obj_to_crtc(mo) : NULL; 1532 } 1533 1534 static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev, 1535 uint32_t id) 1536 { 1537 struct drm_mode_object *mo; 1538 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER); 1539 return mo ? obj_to_encoder(mo) : NULL; 1540 } 1541 1542 static inline struct drm_connector *drm_connector_find(struct drm_device *dev, 1543 uint32_t id) 1544 { 1545 struct drm_mode_object *mo; 1546 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CONNECTOR); 1547 return mo ? obj_to_connector(mo) : NULL; 1548 } 1549 1550 static inline struct drm_property *drm_property_find(struct drm_device *dev, 1551 uint32_t id) 1552 { 1553 struct drm_mode_object *mo; 1554 mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PROPERTY); 1555 return mo ? obj_to_property(mo) : NULL; 1556 } 1557 1558 /* Plane list iterator for legacy (overlay only) planes. */ 1559 #define drm_for_each_legacy_plane(plane, dev) \ 1560 list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) \ 1561 if (plane->type == DRM_PLANE_TYPE_OVERLAY) 1562 1563 #define drm_for_each_plane(plane, dev) \ 1564 list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) 1565 1566 #define drm_for_each_crtc(crtc, dev) \ 1567 list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head) 1568 1569 static inline void 1570 assert_drm_connector_list_read_locked(struct drm_mode_config *mode_config) 1571 { 1572 /* 1573 * The connector hotadd/remove code currently grabs both locks when 1574 * updating lists. Hence readers need only hold either of them to be 1575 * safe and the check amounts to 1576 * 1577 * WARN_ON(not_holding(A) && not_holding(B)). 1578 */ 1579 WARN_ON(!mutex_is_locked(&mode_config->mutex) && 1580 !drm_modeset_is_locked(&mode_config->connection_mutex)); 1581 } 1582 1583 #define drm_for_each_connector(connector, dev) \ 1584 for (assert_drm_connector_list_read_locked(&(dev)->mode_config), \ 1585 connector = list_first_entry(&(dev)->mode_config.connector_list, \ 1586 struct drm_connector, head); \ 1587 &connector->head != (&(dev)->mode_config.connector_list); \ 1588 connector = list_next_entry(connector, head)) 1589 1590 #define drm_for_each_encoder(encoder, dev) \ 1591 list_for_each_entry(encoder, &(dev)->mode_config.encoder_list, head) 1592 1593 #define drm_for_each_fb(fb, dev) \ 1594 for (WARN_ON(!mutex_is_locked(&(dev)->mode_config.fb_lock)), \ 1595 fb = list_first_entry(&(dev)->mode_config.fb_list, \ 1596 struct drm_framebuffer, head); \ 1597 &fb->head != (&(dev)->mode_config.fb_list); \ 1598 fb = list_next_entry(fb, head)) 1599 1600 #endif /* __DRM_CRTC_H__ */ 1601