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