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