1 /* 2 * Copyright (C) 2008 Maarten Maathuis. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining 6 * a copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sublicense, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial 15 * portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 * 25 */ 26 27 #include <acpi/button.h> 28 29 #include <linux/pm_runtime.h> 30 #include <linux/vga_switcheroo.h> 31 32 #include <drm/drm_atomic_helper.h> 33 #include <drm/drm_edid.h> 34 #include <drm/drm_crtc_helper.h> 35 #include <drm/drm_probe_helper.h> 36 #include <drm/drm_atomic.h> 37 38 #include "nouveau_reg.h" 39 #include "nouveau_drv.h" 40 #include "dispnv04/hw.h" 41 #include "dispnv50/disp.h" 42 #include "nouveau_acpi.h" 43 44 #include "nouveau_display.h" 45 #include "nouveau_connector.h" 46 #include "nouveau_encoder.h" 47 #include "nouveau_crtc.h" 48 49 #include <nvif/class.h> 50 #include <nvif/if0011.h> 51 52 struct drm_display_mode * 53 nouveau_conn_native_mode(struct drm_connector *connector) 54 { 55 const struct drm_connector_helper_funcs *helper = connector->helper_private; 56 struct nouveau_drm *drm = nouveau_drm(connector->dev); 57 struct drm_device *dev = connector->dev; 58 struct drm_display_mode *mode, *largest = NULL; 59 int high_w = 0, high_h = 0, high_v = 0; 60 61 list_for_each_entry(mode, &connector->probed_modes, head) { 62 if (helper->mode_valid(connector, mode) != MODE_OK || 63 (mode->flags & DRM_MODE_FLAG_INTERLACE)) 64 continue; 65 66 /* Use preferred mode if there is one.. */ 67 if (mode->type & DRM_MODE_TYPE_PREFERRED) { 68 NV_DEBUG(drm, "native mode from preferred\n"); 69 return drm_mode_duplicate(dev, mode); 70 } 71 72 /* Otherwise, take the resolution with the largest width, then 73 * height, then vertical refresh 74 */ 75 if (mode->hdisplay < high_w) 76 continue; 77 78 if (mode->hdisplay == high_w && mode->vdisplay < high_h) 79 continue; 80 81 if (mode->hdisplay == high_w && mode->vdisplay == high_h && 82 drm_mode_vrefresh(mode) < high_v) 83 continue; 84 85 high_w = mode->hdisplay; 86 high_h = mode->vdisplay; 87 high_v = drm_mode_vrefresh(mode); 88 largest = mode; 89 } 90 91 NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n", 92 high_w, high_h, high_v); 93 return largest ? drm_mode_duplicate(dev, largest) : NULL; 94 } 95 96 int 97 nouveau_conn_atomic_get_property(struct drm_connector *connector, 98 const struct drm_connector_state *state, 99 struct drm_property *property, u64 *val) 100 { 101 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state); 102 struct nouveau_display *disp = nouveau_display(connector->dev); 103 struct drm_device *dev = connector->dev; 104 105 if (property == dev->mode_config.scaling_mode_property) 106 *val = asyc->scaler.mode; 107 else if (property == disp->underscan_property) 108 *val = asyc->scaler.underscan.mode; 109 else if (property == disp->underscan_hborder_property) 110 *val = asyc->scaler.underscan.hborder; 111 else if (property == disp->underscan_vborder_property) 112 *val = asyc->scaler.underscan.vborder; 113 else if (property == disp->dithering_mode) 114 *val = asyc->dither.mode; 115 else if (property == disp->dithering_depth) 116 *val = asyc->dither.depth; 117 else if (property == disp->vibrant_hue_property) 118 *val = asyc->procamp.vibrant_hue; 119 else if (property == disp->color_vibrance_property) 120 *val = asyc->procamp.color_vibrance; 121 else 122 return -EINVAL; 123 124 return 0; 125 } 126 127 int 128 nouveau_conn_atomic_set_property(struct drm_connector *connector, 129 struct drm_connector_state *state, 130 struct drm_property *property, u64 val) 131 { 132 struct drm_device *dev = connector->dev; 133 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state); 134 struct nouveau_display *disp = nouveau_display(dev); 135 136 if (property == dev->mode_config.scaling_mode_property) { 137 switch (val) { 138 case DRM_MODE_SCALE_NONE: 139 /* We allow 'None' for EDID modes, even on a fixed 140 * panel (some exist with support for lower refresh 141 * rates, which people might want to use for power- 142 * saving purposes). 143 * 144 * Non-EDID modes will force the use of GPU scaling 145 * to the native mode regardless of this setting. 146 */ 147 switch (connector->connector_type) { 148 case DRM_MODE_CONNECTOR_LVDS: 149 case DRM_MODE_CONNECTOR_eDP: 150 /* ... except prior to G80, where the code 151 * doesn't support such things. 152 */ 153 if (disp->disp.object.oclass < NV50_DISP) 154 return -EINVAL; 155 break; 156 default: 157 break; 158 } 159 break; 160 case DRM_MODE_SCALE_FULLSCREEN: 161 case DRM_MODE_SCALE_CENTER: 162 case DRM_MODE_SCALE_ASPECT: 163 break; 164 default: 165 return -EINVAL; 166 } 167 168 if (asyc->scaler.mode != val) { 169 asyc->scaler.mode = val; 170 asyc->set.scaler = true; 171 } 172 } else 173 if (property == disp->underscan_property) { 174 if (asyc->scaler.underscan.mode != val) { 175 asyc->scaler.underscan.mode = val; 176 asyc->set.scaler = true; 177 } 178 } else 179 if (property == disp->underscan_hborder_property) { 180 if (asyc->scaler.underscan.hborder != val) { 181 asyc->scaler.underscan.hborder = val; 182 asyc->set.scaler = true; 183 } 184 } else 185 if (property == disp->underscan_vborder_property) { 186 if (asyc->scaler.underscan.vborder != val) { 187 asyc->scaler.underscan.vborder = val; 188 asyc->set.scaler = true; 189 } 190 } else 191 if (property == disp->dithering_mode) { 192 if (asyc->dither.mode != val) { 193 asyc->dither.mode = val; 194 asyc->set.dither = true; 195 } 196 } else 197 if (property == disp->dithering_depth) { 198 if (asyc->dither.mode != val) { 199 asyc->dither.depth = val; 200 asyc->set.dither = true; 201 } 202 } else 203 if (property == disp->vibrant_hue_property) { 204 if (asyc->procamp.vibrant_hue != val) { 205 asyc->procamp.vibrant_hue = val; 206 asyc->set.procamp = true; 207 } 208 } else 209 if (property == disp->color_vibrance_property) { 210 if (asyc->procamp.color_vibrance != val) { 211 asyc->procamp.color_vibrance = val; 212 asyc->set.procamp = true; 213 } 214 } else { 215 return -EINVAL; 216 } 217 218 return 0; 219 } 220 221 void 222 nouveau_conn_atomic_destroy_state(struct drm_connector *connector, 223 struct drm_connector_state *state) 224 { 225 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state); 226 __drm_atomic_helper_connector_destroy_state(&asyc->state); 227 kfree(asyc); 228 } 229 230 struct drm_connector_state * 231 nouveau_conn_atomic_duplicate_state(struct drm_connector *connector) 232 { 233 struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state); 234 struct nouveau_conn_atom *asyc; 235 if (!(asyc = kmalloc_obj(*asyc))) 236 return NULL; 237 __drm_atomic_helper_connector_duplicate_state(connector, &asyc->state); 238 asyc->dither = armc->dither; 239 asyc->scaler = armc->scaler; 240 asyc->procamp = armc->procamp; 241 asyc->set.mask = 0; 242 return &asyc->state; 243 } 244 245 void 246 nouveau_conn_reset(struct drm_connector *connector) 247 { 248 struct nouveau_connector *nv_connector = nouveau_connector(connector); 249 struct nouveau_conn_atom *asyc; 250 251 if (drm_drv_uses_atomic_modeset(connector->dev)) { 252 if (WARN_ON(!(asyc = kzalloc_obj(*asyc)))) 253 return; 254 255 if (connector->state) 256 nouveau_conn_atomic_destroy_state(connector, 257 connector->state); 258 259 __drm_atomic_helper_connector_reset(connector, &asyc->state); 260 } else { 261 asyc = &nv_connector->properties_state; 262 } 263 264 asyc->dither.mode = DITHERING_MODE_AUTO; 265 asyc->dither.depth = DITHERING_DEPTH_AUTO; 266 asyc->scaler.mode = DRM_MODE_SCALE_NONE; 267 asyc->scaler.underscan.mode = UNDERSCAN_OFF; 268 asyc->procamp.color_vibrance = 150; 269 asyc->procamp.vibrant_hue = 90; 270 271 if (nouveau_display(connector->dev)->disp.object.oclass < NV50_DISP) { 272 switch (connector->connector_type) { 273 case DRM_MODE_CONNECTOR_LVDS: 274 /* See note in nouveau_conn_atomic_set_property(). */ 275 asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN; 276 break; 277 default: 278 break; 279 } 280 } 281 } 282 283 void 284 nouveau_conn_attach_properties(struct drm_connector *connector) 285 { 286 struct drm_device *dev = connector->dev; 287 struct nouveau_display *disp = nouveau_display(dev); 288 struct nouveau_connector *nv_connector = nouveau_connector(connector); 289 struct nouveau_conn_atom *armc; 290 291 if (drm_drv_uses_atomic_modeset(connector->dev)) 292 armc = nouveau_conn_atom(connector->state); 293 else 294 armc = &nv_connector->properties_state; 295 296 /* Init DVI-I specific properties. */ 297 if (connector->connector_type == DRM_MODE_CONNECTOR_DVII) 298 drm_object_attach_property(&connector->base, dev->mode_config. 299 dvi_i_subconnector_property, 0); 300 301 /* Add overscan compensation options to digital outputs. */ 302 if (disp->underscan_property && 303 (connector->connector_type == DRM_MODE_CONNECTOR_DVID || 304 connector->connector_type == DRM_MODE_CONNECTOR_DVII || 305 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || 306 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) { 307 drm_object_attach_property(&connector->base, 308 disp->underscan_property, 309 UNDERSCAN_OFF); 310 drm_object_attach_property(&connector->base, 311 disp->underscan_hborder_property, 0); 312 drm_object_attach_property(&connector->base, 313 disp->underscan_vborder_property, 0); 314 } 315 316 /* Add hue and saturation options. */ 317 if (disp->vibrant_hue_property) 318 drm_object_attach_property(&connector->base, 319 disp->vibrant_hue_property, 320 armc->procamp.vibrant_hue); 321 if (disp->color_vibrance_property) 322 drm_object_attach_property(&connector->base, 323 disp->color_vibrance_property, 324 armc->procamp.color_vibrance); 325 326 /* Scaling mode property. */ 327 switch (connector->connector_type) { 328 case DRM_MODE_CONNECTOR_TV: 329 break; 330 case DRM_MODE_CONNECTOR_VGA: 331 if (disp->disp.object.oclass < NV50_DISP) 332 break; /* Can only scale on DFPs. */ 333 fallthrough; 334 default: 335 drm_object_attach_property(&connector->base, dev->mode_config. 336 scaling_mode_property, 337 armc->scaler.mode); 338 break; 339 } 340 341 /* Dithering properties. */ 342 switch (connector->connector_type) { 343 case DRM_MODE_CONNECTOR_TV: 344 case DRM_MODE_CONNECTOR_VGA: 345 break; 346 default: 347 if (disp->dithering_mode) { 348 drm_object_attach_property(&connector->base, 349 disp->dithering_mode, 350 armc->dither.mode); 351 } 352 if (disp->dithering_depth) { 353 drm_object_attach_property(&connector->base, 354 disp->dithering_depth, 355 armc->dither.depth); 356 } 357 break; 358 } 359 } 360 361 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection"); 362 int nouveau_tv_disable = 0; 363 module_param_named(tv_disable, nouveau_tv_disable, int, 0400); 364 365 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status"); 366 int nouveau_ignorelid = 0; 367 module_param_named(ignorelid, nouveau_ignorelid, int, 0400); 368 369 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)"); 370 int nouveau_duallink = 1; 371 module_param_named(duallink, nouveau_duallink, int, 0400); 372 373 MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)"); 374 int nouveau_hdmimhz = 0; 375 module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400); 376 377 struct nouveau_encoder * 378 find_encoder(struct drm_connector *connector, int type) 379 { 380 struct nouveau_encoder *nv_encoder; 381 struct drm_encoder *enc; 382 383 drm_connector_for_each_possible_encoder(connector, enc) { 384 nv_encoder = nouveau_encoder(enc); 385 386 if (type == DCB_OUTPUT_ANY || 387 (nv_encoder->dcb && nv_encoder->dcb->type == type)) 388 return nv_encoder; 389 } 390 391 return NULL; 392 } 393 394 static void 395 nouveau_connector_destroy(struct drm_connector *connector) 396 { 397 struct nouveau_connector *nv_connector = nouveau_connector(connector); 398 nvif_event_dtor(&nv_connector->irq); 399 nvif_event_dtor(&nv_connector->hpd); 400 cancel_work_sync(&nv_connector->irq_work); 401 drm_edid_free(nv_connector->drm_edid); 402 drm_connector_unregister(connector); 403 drm_connector_cleanup(connector); 404 if (nv_connector->aux.transfer) 405 drm_dp_cec_unregister_connector(&nv_connector->aux); 406 nvif_conn_dtor(&nv_connector->conn); 407 kfree(connector); 408 } 409 410 static struct nouveau_encoder * 411 nouveau_connector_ddc_detect(struct drm_connector *connector) 412 { 413 struct drm_device *dev = connector->dev; 414 struct pci_dev *pdev = to_pci_dev(dev->dev); 415 struct nouveau_connector *conn = nouveau_connector(connector); 416 struct nouveau_encoder *nv_encoder = NULL, *found = NULL; 417 struct drm_encoder *encoder; 418 int ret; 419 bool switcheroo_ddc = false; 420 421 drm_connector_for_each_possible_encoder(connector, encoder) { 422 nv_encoder = nouveau_encoder(encoder); 423 424 if (nvif_object_constructed(&nv_encoder->outp.object)) { 425 enum nvif_outp_detect_status status; 426 427 if (nv_encoder->dcb->type == DCB_OUTPUT_DP) { 428 ret = nouveau_dp_detect(conn, nv_encoder); 429 if (ret == NOUVEAU_DP_MST) 430 return NULL; 431 if (ret != NOUVEAU_DP_SST) 432 continue; 433 434 return nv_encoder; 435 } else { 436 status = nvif_outp_detect(&nv_encoder->outp); 437 switch (status) { 438 case PRESENT: 439 return nv_encoder; 440 case NOT_PRESENT: 441 continue; 442 case UNKNOWN: 443 break; 444 default: 445 WARN_ON(1); 446 break; 447 } 448 } 449 } 450 451 if (!nv_encoder->i2c) 452 continue; 453 454 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS) { 455 switcheroo_ddc = !!(vga_switcheroo_handler_flags() & 456 VGA_SWITCHEROO_CAN_SWITCH_DDC); 457 } 458 459 if (switcheroo_ddc) 460 vga_switcheroo_lock_ddc(pdev); 461 if (nvkm_probe_i2c(nv_encoder->i2c, 0x50)) 462 found = nv_encoder; 463 if (switcheroo_ddc) 464 vga_switcheroo_unlock_ddc(pdev); 465 466 if (found) 467 break; 468 } 469 470 return found; 471 } 472 473 static void 474 nouveau_connector_set_edid(struct nouveau_connector *nv_connector, 475 const struct drm_edid *drm_edid) 476 { 477 if (nv_connector->drm_edid == drm_edid) 478 return; 479 480 /* Updates the EDID property and display_info with HF-EEODB-aware 481 * sizing. The legacy helpers truncate both to what EDID byte 126 482 * admits, hiding the DisplayID extension blocks that carry the 483 * high-refresh timings. 484 */ 485 drm_edid_connector_update(&nv_connector->base, drm_edid); 486 487 drm_edid_free(nv_connector->drm_edid); 488 nv_connector->drm_edid = drm_edid; 489 490 /* The SPWG link-count byte lives in a vendor descriptor drm has no 491 * accessor for. Peek at it once here so nothing else needs the raw 492 * EDID. 493 */ 494 nv_connector->spwg_links = 0; 495 if (nv_connector->type == DCB_CONNECTOR_LVDS_SPWG) { 496 const u8 *raw = (const u8 *)drm_edid_raw(drm_edid); 497 498 if (raw) 499 nv_connector->spwg_links = raw[121] == 2 ? 2 : 1; 500 } 501 } 502 503 static struct nouveau_encoder * 504 nouveau_connector_of_detect(struct drm_connector *connector) 505 { 506 #ifdef __powerpc__ 507 struct drm_device *dev = connector->dev; 508 struct nouveau_connector *nv_connector = nouveau_connector(connector); 509 struct nouveau_encoder *nv_encoder; 510 struct pci_dev *pdev = to_pci_dev(dev->dev); 511 struct device_node *dn = pci_device_to_OF_node(pdev); 512 513 if (!dn || 514 !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) || 515 (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG)))) 516 return NULL; 517 518 for_each_child_of_node_scoped(dn, cn) { 519 const char *name = of_get_property(cn, "name", NULL); 520 const void *edid = of_get_property(cn, "EDID", NULL); 521 int idx = name ? name[strlen(name) - 1] - 'A' : 0; 522 523 if (nv_encoder->dcb->i2c_index == idx && edid) { 524 const struct drm_edid *drm_edid = 525 drm_edid_alloc(edid, EDID_LENGTH); 526 527 /* Firmware-provided, so validate it like the DDC 528 * readers would. 529 */ 530 if (drm_edid && !drm_edid_valid(drm_edid)) { 531 drm_edid_free(drm_edid); 532 drm_edid = NULL; 533 } 534 nouveau_connector_set_edid(nv_connector, drm_edid); 535 return nv_encoder; 536 } 537 } 538 #endif 539 return NULL; 540 } 541 542 static void 543 nouveau_connector_set_encoder(struct drm_connector *connector, 544 struct nouveau_encoder *nv_encoder) 545 { 546 struct nouveau_connector *nv_connector = nouveau_connector(connector); 547 struct nouveau_drm *drm = nouveau_drm(connector->dev); 548 struct drm_device *dev = connector->dev; 549 struct pci_dev *pdev = to_pci_dev(dev->dev); 550 551 if (nv_connector->detected_encoder == nv_encoder) 552 return; 553 nv_connector->detected_encoder = nv_encoder; 554 555 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 556 if (nv_encoder->dcb->type == DCB_OUTPUT_DP) 557 connector->interlace_allowed = 558 nv_encoder->caps.dp_interlace; 559 else 560 connector->interlace_allowed = 561 drm->client.device.info.family < NV_DEVICE_INFO_V0_VOLTA; 562 connector->doublescan_allowed = true; 563 } else 564 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS || 565 nv_encoder->dcb->type == DCB_OUTPUT_TMDS) { 566 connector->doublescan_allowed = false; 567 connector->interlace_allowed = false; 568 } else { 569 connector->doublescan_allowed = true; 570 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN || 571 (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS && 572 (pdev->device & 0x0ff0) != 0x0100 && 573 (pdev->device & 0x0ff0) != 0x0150)) 574 /* HW is broken */ 575 connector->interlace_allowed = false; 576 else 577 connector->interlace_allowed = true; 578 } 579 580 if (nv_connector->type == DCB_CONNECTOR_DVI_I) { 581 drm_object_property_set_value(&connector->base, 582 dev->mode_config.dvi_i_subconnector_property, 583 nv_encoder->dcb->type == DCB_OUTPUT_TMDS ? 584 DRM_MODE_SUBCONNECTOR_DVID : 585 DRM_MODE_SUBCONNECTOR_DVIA); 586 } 587 } 588 589 struct nouveau_rm_edid { 590 u8 *data; 591 size_t size; 592 }; 593 594 static int 595 nouveau_connector_rm_edid_block(void *context, u8 *buf, unsigned int block, 596 size_t len) 597 { 598 struct nouveau_rm_edid *rm = context; 599 size_t offset = (size_t)block * EDID_LENGTH; 600 601 if (offset + len > rm->size) 602 return -EINVAL; 603 604 memcpy(buf, rm->data + offset, len); 605 return 0; 606 } 607 608 static enum drm_connector_status 609 nouveau_connector_detect(struct drm_connector *connector, bool force) 610 { 611 struct drm_device *dev = connector->dev; 612 struct nouveau_drm *drm = nouveau_drm(dev); 613 struct nouveau_connector *nv_connector = nouveau_connector(connector); 614 struct nouveau_encoder *nv_encoder = NULL; 615 struct nouveau_encoder *nv_partner; 616 int type; 617 int ret; 618 enum drm_connector_status conn_status = connector_status_disconnected; 619 620 /* Outputs are only polled while runtime active, so resuming the 621 * device here is unnecessary (and would deadlock upon runtime suspend 622 * because it waits for polling to finish). We do however, want to 623 * prevent the autosuspend timer from elapsing during this operation 624 * if possible. 625 */ 626 if (drm_kms_helper_is_poll_worker()) { 627 pm_runtime_get_noresume(dev->dev); 628 } else { 629 ret = pm_runtime_get_sync(dev->dev); 630 if (ret < 0 && ret != -EACCES) { 631 pm_runtime_put_autosuspend(dev->dev); 632 nouveau_connector_set_edid(nv_connector, NULL); 633 return conn_status; 634 } 635 } 636 637 nv_encoder = nouveau_connector_ddc_detect(connector); 638 if (nv_encoder) { 639 const struct drm_edid *new_edid = NULL; 640 641 if (nv_encoder->i2c) { 642 if ((vga_switcheroo_handler_flags() & VGA_SWITCHEROO_CAN_SWITCH_DDC) && 643 nv_connector->type == DCB_CONNECTOR_LVDS) 644 new_edid = drm_edid_read_switcheroo(connector, nv_encoder->i2c); 645 else 646 new_edid = drm_edid_read_ddc(connector, nv_encoder->i2c); 647 } else { 648 struct nouveau_rm_edid rm = {}; 649 650 /* RM (which owns the DDC pads on GSP boards) reads the 651 * EDID whole and returns its true size, which for an 652 * HF-EEODB EDID exceeds what byte 126 admits. Serve it 653 * through drm's block reader so EEODB sizing, block 654 * validation, and the debugfs EDID override all apply. 655 * A failed read is treated like an empty DDC read, 656 * which releases the runtime-PM reference. 657 */ 658 ret = nvif_outp_edid_get(&nv_encoder->outp, &rm.data); 659 if (ret >= 0) { 660 rm.size = ret; 661 new_edid = drm_edid_read_custom(connector, 662 nouveau_connector_rm_edid_block, 663 &rm); 664 kfree(rm.data); 665 } 666 } 667 668 nouveau_connector_set_edid(nv_connector, new_edid); 669 if (!nv_connector->drm_edid) { 670 NV_ERROR(drm, "DDC responded, but no EDID for %s\n", 671 connector->name); 672 goto detect_analog; 673 } 674 675 /* Override encoder type for DVI-I based on whether EDID 676 * says the display is digital or analog, both use the 677 * same i2c channel so the value returned from ddc_detect 678 * isn't necessarily correct. 679 */ 680 nv_partner = NULL; 681 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS) 682 nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG); 683 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG) 684 nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS); 685 686 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG && 687 nv_partner->dcb->type == DCB_OUTPUT_TMDS) || 688 (nv_encoder->dcb->type == DCB_OUTPUT_TMDS && 689 nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) { 690 if (drm_edid_is_digital(nv_connector->drm_edid)) 691 type = DCB_OUTPUT_TMDS; 692 else 693 type = DCB_OUTPUT_ANALOG; 694 695 nv_encoder = find_encoder(connector, type); 696 } 697 698 nouveau_connector_set_encoder(connector, nv_encoder); 699 conn_status = connector_status_connected; 700 701 if (nv_encoder->dcb->type == DCB_OUTPUT_DP) 702 drm_dp_cec_attach(&nv_connector->aux, 703 connector->display_info.source_physical_address); 704 705 goto out; 706 } else { 707 nouveau_connector_set_edid(nv_connector, NULL); 708 } 709 710 nv_encoder = nouveau_connector_of_detect(connector); 711 if (nv_encoder) { 712 nouveau_connector_set_encoder(connector, nv_encoder); 713 conn_status = connector_status_connected; 714 goto out; 715 } 716 717 detect_analog: 718 nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG); 719 if (!nv_encoder && !nouveau_tv_disable) 720 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV); 721 if (nv_encoder && force) { 722 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 723 const struct drm_encoder_helper_funcs *helper = 724 encoder->helper_private; 725 726 if (helper->detect(encoder, connector) == 727 connector_status_connected) { 728 nouveau_connector_set_encoder(connector, nv_encoder); 729 conn_status = connector_status_connected; 730 goto out; 731 } 732 } 733 734 out: 735 if (!nv_connector->drm_edid) 736 drm_dp_cec_unset_edid(&nv_connector->aux); 737 738 pm_runtime_mark_last_busy(dev->dev); 739 pm_runtime_put_autosuspend(dev->dev); 740 741 return conn_status; 742 } 743 744 static enum drm_connector_status 745 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force) 746 { 747 struct drm_device *dev = connector->dev; 748 struct nouveau_drm *drm = nouveau_drm(dev); 749 struct nouveau_connector *nv_connector = nouveau_connector(connector); 750 struct nouveau_encoder *nv_encoder = NULL; 751 const struct drm_edid *edid = NULL; 752 enum drm_connector_status status = connector_status_disconnected; 753 754 nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS); 755 if (!nv_encoder) 756 goto out; 757 758 /* Try retrieving EDID via DDC */ 759 if (!drm->vbios.fp_no_ddc) { 760 status = nouveau_connector_detect(connector, force); 761 if (status == connector_status_connected) { 762 edid = nv_connector->drm_edid; 763 goto out; 764 } 765 } 766 767 /* On some laptops (Sony, i'm looking at you) there appears to 768 * be no direct way of accessing the panel's EDID. The only 769 * option available to us appears to be to ask ACPI for help.. 770 * 771 * It's important this check's before trying straps, one of the 772 * said manufacturer's laptops are configured in such a way 773 * the nouveau decides an entry in the VBIOS FP mode table is 774 * valid - it's not (rh#613284) 775 */ 776 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) { 777 edid = nouveau_acpi_edid(dev, connector); 778 if (edid) { 779 status = connector_status_connected; 780 goto out; 781 } 782 } 783 784 /* If no EDID found above, and the VBIOS indicates a hardcoded 785 * modeline is avalilable for the panel, set it as the panel's 786 * native mode and exit. 787 */ 788 if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc || 789 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) { 790 status = connector_status_connected; 791 goto out; 792 } 793 794 /* Still nothing, some VBIOS images have a hardcoded EDID block 795 * stored for the panel stored in them. 796 */ 797 if (!drm->vbios.fp_no_ddc) { 798 const void *embedded = nouveau_bios_embedded_edid(dev); 799 800 if (embedded) { 801 edid = drm_edid_alloc(embedded, EDID_LENGTH); 802 /* The panel is there either way, so report it 803 * connected and let the probe helper fall back to a 804 * default mode if the EDID itself is unusable. 805 */ 806 if (edid) 807 status = connector_status_connected; 808 if (edid && !drm_edid_valid(edid)) { 809 drm_edid_free(edid); 810 edid = NULL; 811 } 812 } 813 } 814 815 out: 816 #if defined(CONFIG_ACPI_BUTTON) || \ 817 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE)) 818 if (status == connector_status_connected && 819 !nouveau_ignorelid && !acpi_lid_open()) 820 status = connector_status_unknown; 821 #endif 822 823 nouveau_connector_set_edid(nv_connector, edid); 824 if (nv_encoder) 825 nouveau_connector_set_encoder(connector, nv_encoder); 826 return status; 827 } 828 829 static void 830 nouveau_connector_force(struct drm_connector *connector) 831 { 832 struct nouveau_drm *drm = nouveau_drm(connector->dev); 833 struct nouveau_connector *nv_connector = nouveau_connector(connector); 834 struct nouveau_encoder *nv_encoder; 835 int type; 836 837 if (nv_connector->type == DCB_CONNECTOR_DVI_I) { 838 if (connector->force == DRM_FORCE_ON_DIGITAL) 839 type = DCB_OUTPUT_TMDS; 840 else 841 type = DCB_OUTPUT_ANALOG; 842 } else 843 type = DCB_OUTPUT_ANY; 844 845 nv_encoder = find_encoder(connector, type); 846 if (!nv_encoder) { 847 NV_ERROR(drm, "can't find encoder to force %s on!\n", 848 connector->name); 849 return; 850 } 851 852 nouveau_connector_set_encoder(connector, nv_encoder); 853 } 854 855 static int 856 nouveau_connector_set_property(struct drm_connector *connector, 857 struct drm_property *property, uint64_t value) 858 { 859 struct nouveau_connector *nv_connector = nouveau_connector(connector); 860 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 861 struct nouveau_conn_atom *asyc = &nv_connector->properties_state; 862 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 863 int ret; 864 865 ret = connector->funcs->atomic_set_property(&nv_connector->base, 866 &asyc->state, 867 property, value); 868 if (ret) { 869 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV) 870 return get_encoder_i2c_funcs(encoder)->set_property(encoder, 871 connector, 872 property, 873 value); 874 return ret; 875 } 876 877 nv_connector->scaling_mode = asyc->scaler.mode; 878 nv_connector->dithering_mode = asyc->dither.mode; 879 880 if (connector->encoder && connector->encoder->crtc) { 881 ret = drm_crtc_helper_set_mode(connector->encoder->crtc, 882 &connector->encoder->crtc->mode, 883 connector->encoder->crtc->x, 884 connector->encoder->crtc->y, 885 NULL); 886 if (!ret) 887 return -EINVAL; 888 } 889 890 return 0; 891 } 892 893 struct moderec { 894 int hdisplay; 895 int vdisplay; 896 }; 897 898 static struct moderec scaler_modes[] = { 899 { 1920, 1200 }, 900 { 1920, 1080 }, 901 { 1680, 1050 }, 902 { 1600, 1200 }, 903 { 1400, 1050 }, 904 { 1280, 1024 }, 905 { 1280, 960 }, 906 { 1152, 864 }, 907 { 1024, 768 }, 908 { 800, 600 }, 909 { 720, 400 }, 910 { 640, 480 }, 911 { 640, 400 }, 912 { 640, 350 }, 913 {} 914 }; 915 916 static int 917 nouveau_connector_scaler_modes_add(struct drm_connector *connector) 918 { 919 struct nouveau_connector *nv_connector = nouveau_connector(connector); 920 struct drm_display_mode *native = nv_connector->native_mode, *m; 921 struct drm_device *dev = connector->dev; 922 struct moderec *mode = &scaler_modes[0]; 923 int modes = 0; 924 925 if (!native) 926 return 0; 927 928 while (mode->hdisplay) { 929 if (mode->hdisplay <= native->hdisplay && 930 mode->vdisplay <= native->vdisplay && 931 (mode->hdisplay != native->hdisplay || 932 mode->vdisplay != native->vdisplay)) { 933 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay, 934 drm_mode_vrefresh(native), false, 935 false, false); 936 if (!m) 937 continue; 938 939 drm_mode_probed_add(connector, m); 940 modes++; 941 } 942 943 mode++; 944 } 945 946 return modes; 947 } 948 949 static void 950 nouveau_connector_detect_depth(struct drm_connector *connector) 951 { 952 struct nouveau_drm *drm = nouveau_drm(connector->dev); 953 struct nouveau_connector *nv_connector = nouveau_connector(connector); 954 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 955 struct nvbios *bios = &drm->vbios; 956 struct drm_display_mode *mode = nv_connector->native_mode; 957 bool duallink; 958 959 /* if the edid is feeling nice enough to provide this info, use it */ 960 if (nv_connector->drm_edid && connector->display_info.bpc) 961 return; 962 963 /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */ 964 if (nv_connector->type == DCB_CONNECTOR_eDP) { 965 connector->display_info.bpc = 6; 966 return; 967 } 968 969 /* we're out of options unless we're LVDS, default to 8bpc */ 970 if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) { 971 connector->display_info.bpc = 8; 972 return; 973 } 974 975 connector->display_info.bpc = 6; 976 977 /* LVDS: panel straps */ 978 if (bios->fp_no_ddc) { 979 if (bios->fp.if_is_24bit) 980 connector->display_info.bpc = 8; 981 return; 982 } 983 984 /* LVDS: DDC panel, need to first determine the number of links to 985 * know which if_is_24bit flag to check... 986 */ 987 if (nv_connector->spwg_links) 988 duallink = nv_connector->spwg_links == 2; 989 else 990 duallink = mode->clock >= bios->fp.duallink_transition_clk; 991 992 if ((!duallink && (bios->fp.strapless_is_24bit & 1)) || 993 ( duallink && (bios->fp.strapless_is_24bit & 2))) 994 connector->display_info.bpc = 8; 995 } 996 997 static int 998 nouveau_connector_late_register(struct drm_connector *connector) 999 { 1000 int ret; 1001 1002 ret = nouveau_backlight_init(connector); 1003 if (ret) 1004 return ret; 1005 1006 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP || 1007 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) { 1008 ret = drm_dp_aux_register(&nouveau_connector(connector)->aux); 1009 if (ret) 1010 goto backlight_fini; 1011 } 1012 1013 return 0; 1014 backlight_fini: 1015 nouveau_backlight_fini(connector); 1016 return ret; 1017 } 1018 1019 static void 1020 nouveau_connector_early_unregister(struct drm_connector *connector) 1021 { 1022 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP || 1023 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) 1024 drm_dp_aux_unregister(&nouveau_connector(connector)->aux); 1025 1026 nouveau_backlight_fini(connector); 1027 } 1028 1029 static int 1030 nouveau_connector_get_modes(struct drm_connector *connector) 1031 { 1032 struct drm_device *dev = connector->dev; 1033 struct nouveau_drm *drm = nouveau_drm(dev); 1034 struct nouveau_connector *nv_connector = nouveau_connector(connector); 1035 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 1036 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 1037 int ret = 0; 1038 1039 /* destroy the native mode, the attached monitor could have changed. 1040 */ 1041 if (nv_connector->native_mode) { 1042 drm_mode_destroy(dev, nv_connector->native_mode); 1043 nv_connector->native_mode = NULL; 1044 } 1045 1046 if (nv_connector->drm_edid) { 1047 /* The probe helper clears the property and display_info for 1048 * a forced-off connector without calling detect(). Re-sync 1049 * from our copy then, since add_modes() reads the property. 1050 */ 1051 if (!connector->edid_blob_ptr) 1052 drm_edid_connector_update(connector, nv_connector->drm_edid); 1053 ret = drm_edid_connector_add_modes(connector); 1054 } else if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS && 1055 (nv_encoder->dcb->lvdsconf.use_straps_for_mode || 1056 drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) { 1057 struct drm_display_mode mode; 1058 1059 nouveau_bios_fp_mode(dev, &mode); 1060 nv_connector->native_mode = drm_mode_duplicate(dev, &mode); 1061 } 1062 1063 /* Determine display colour depth for everything except LVDS now, 1064 * DP requires this before mode_valid() is called. 1065 */ 1066 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS) 1067 nouveau_connector_detect_depth(connector); 1068 1069 /* Find the native mode if this is a digital panel, if we didn't 1070 * find any modes through DDC previously add the native mode to 1071 * the list of modes. 1072 */ 1073 if (!nv_connector->native_mode) 1074 nv_connector->native_mode = nouveau_conn_native_mode(connector); 1075 if (ret == 0 && nv_connector->native_mode) { 1076 struct drm_display_mode *mode; 1077 1078 mode = drm_mode_duplicate(dev, nv_connector->native_mode); 1079 if (!mode) 1080 return 0; 1081 1082 drm_mode_probed_add(connector, mode); 1083 ret = 1; 1084 } 1085 1086 /* Determine LVDS colour depth, must happen after determining 1087 * "native" mode as some VBIOS tables require us to use the 1088 * pixel clock as part of the lookup... 1089 */ 1090 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS && nv_connector->native_mode) 1091 nouveau_connector_detect_depth(connector); 1092 1093 if (nv_encoder->dcb->type == DCB_OUTPUT_TV) 1094 ret = get_encoder_i2c_funcs(encoder)->get_modes(encoder, connector); 1095 1096 if (nv_connector->type == DCB_CONNECTOR_LVDS || 1097 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG || 1098 nv_connector->type == DCB_CONNECTOR_eDP) 1099 ret += nouveau_connector_scaler_modes_add(connector); 1100 1101 return ret; 1102 } 1103 1104 static unsigned 1105 get_tmds_link_bandwidth(struct drm_connector *connector) 1106 { 1107 struct nouveau_connector *nv_connector = nouveau_connector(connector); 1108 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 1109 struct nouveau_drm *drm = nouveau_drm(connector->dev); 1110 struct dcb_output *dcb = nv_connector->detected_encoder->dcb; 1111 struct drm_display_info *info = NULL; 1112 unsigned duallink_scale = 1113 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1; 1114 1115 if (nv_connector->base.display_info.is_hdmi) { 1116 info = &nv_connector->base.display_info; 1117 duallink_scale = 1; 1118 } 1119 1120 if (info) { 1121 if (nouveau_hdmimhz > 0) 1122 return nouveau_hdmimhz * 1000; 1123 /* Note: these limits are conservative, some Fermi's 1124 * can do 297 MHz. Unclear how this can be determined. 1125 */ 1126 if (drm->client.device.info.chipset >= 0x120) { 1127 const int max_tmds_clock = 1128 info->hdmi.scdc.scrambling.supported ? 1129 594000 : 340000; 1130 return info->max_tmds_clock ? 1131 min(info->max_tmds_clock, max_tmds_clock) : 1132 max_tmds_clock; 1133 } 1134 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER) 1135 return 297000; 1136 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI) 1137 return 225000; 1138 } 1139 1140 if (dcb->location != DCB_LOC_ON_CHIP || 1141 drm->client.device.info.chipset >= 0x46) 1142 return 165000 * duallink_scale; 1143 else if (drm->client.device.info.chipset >= 0x40) 1144 return 155000 * duallink_scale; 1145 else if (drm->client.device.info.chipset >= 0x18) 1146 return 135000 * duallink_scale; 1147 else 1148 return 112000 * duallink_scale; 1149 } 1150 1151 static enum drm_mode_status 1152 nouveau_connector_mode_valid(struct drm_connector *connector, 1153 const struct drm_display_mode *mode) 1154 { 1155 struct nouveau_connector *nv_connector = nouveau_connector(connector); 1156 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 1157 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 1158 unsigned int min_clock = 25000, max_clock = min_clock, clock = mode->clock; 1159 1160 switch (nv_encoder->dcb->type) { 1161 case DCB_OUTPUT_LVDS: 1162 if (nv_connector->native_mode && 1163 (mode->hdisplay > nv_connector->native_mode->hdisplay || 1164 mode->vdisplay > nv_connector->native_mode->vdisplay)) 1165 return MODE_PANEL; 1166 1167 min_clock = 0; 1168 max_clock = 400000; 1169 break; 1170 case DCB_OUTPUT_TMDS: 1171 max_clock = get_tmds_link_bandwidth(connector); 1172 break; 1173 case DCB_OUTPUT_ANALOG: 1174 max_clock = nv_encoder->dcb->crtconf.maxfreq; 1175 if (!max_clock) 1176 max_clock = 350000; 1177 break; 1178 case DCB_OUTPUT_TV: 1179 return get_encoder_i2c_funcs(encoder)->mode_valid(encoder, mode); 1180 case DCB_OUTPUT_DP: 1181 return nv50_dp_mode_valid(nv_encoder, mode, NULL); 1182 default: 1183 BUG(); 1184 return MODE_BAD; 1185 } 1186 1187 if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING) 1188 clock *= 2; 1189 1190 if (clock < min_clock) 1191 return MODE_CLOCK_LOW; 1192 if (clock > max_clock) 1193 return MODE_CLOCK_HIGH; 1194 1195 return MODE_OK; 1196 } 1197 1198 static struct drm_encoder * 1199 nouveau_connector_best_encoder(struct drm_connector *connector) 1200 { 1201 struct nouveau_connector *nv_connector = nouveau_connector(connector); 1202 1203 if (nv_connector->detected_encoder) 1204 return to_drm_encoder(nv_connector->detected_encoder); 1205 1206 return NULL; 1207 } 1208 1209 static int 1210 nouveau_connector_atomic_check(struct drm_connector *connector, struct drm_atomic_commit *state) 1211 { 1212 struct nouveau_connector *nv_conn = nouveau_connector(connector); 1213 struct drm_connector_state *conn_state = 1214 drm_atomic_get_new_connector_state(state, connector); 1215 1216 if (!nv_conn->dp_encoder || !nv_conn->dp_encoder->dp.mstm) 1217 return 0; 1218 1219 return drm_dp_mst_root_conn_atomic_check(conn_state, &nv_conn->dp_encoder->dp.mstm->mgr); 1220 } 1221 1222 static const struct drm_connector_helper_funcs 1223 nouveau_connector_helper_funcs = { 1224 .get_modes = nouveau_connector_get_modes, 1225 .mode_valid = nouveau_connector_mode_valid, 1226 .best_encoder = nouveau_connector_best_encoder, 1227 .atomic_check = nouveau_connector_atomic_check, 1228 }; 1229 1230 static const struct drm_connector_funcs 1231 nouveau_connector_funcs = { 1232 .dpms = drm_helper_connector_dpms, 1233 .reset = nouveau_conn_reset, 1234 .detect = nouveau_connector_detect, 1235 .force = nouveau_connector_force, 1236 .fill_modes = drm_helper_probe_single_connector_modes, 1237 .set_property = nouveau_connector_set_property, 1238 .destroy = nouveau_connector_destroy, 1239 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state, 1240 .atomic_destroy_state = nouveau_conn_atomic_destroy_state, 1241 .atomic_set_property = nouveau_conn_atomic_set_property, 1242 .atomic_get_property = nouveau_conn_atomic_get_property, 1243 .late_register = nouveau_connector_late_register, 1244 .early_unregister = nouveau_connector_early_unregister, 1245 }; 1246 1247 static const struct drm_connector_funcs 1248 nouveau_connector_funcs_lvds = { 1249 .dpms = drm_helper_connector_dpms, 1250 .reset = nouveau_conn_reset, 1251 .detect = nouveau_connector_detect_lvds, 1252 .force = nouveau_connector_force, 1253 .fill_modes = drm_helper_probe_single_connector_modes, 1254 .set_property = nouveau_connector_set_property, 1255 .destroy = nouveau_connector_destroy, 1256 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state, 1257 .atomic_destroy_state = nouveau_conn_atomic_destroy_state, 1258 .atomic_set_property = nouveau_conn_atomic_set_property, 1259 .atomic_get_property = nouveau_conn_atomic_get_property, 1260 .late_register = nouveau_connector_late_register, 1261 .early_unregister = nouveau_connector_early_unregister, 1262 }; 1263 1264 void 1265 nouveau_connector_hpd(struct nouveau_connector *nv_connector, u64 bits) 1266 { 1267 struct nouveau_drm *drm = nouveau_drm(nv_connector->base.dev); 1268 u32 mask = drm_connector_mask(&nv_connector->base); 1269 unsigned long flags; 1270 1271 spin_lock_irqsave(&drm->hpd_lock, flags); 1272 if (!(drm->hpd_pending & mask)) { 1273 nv_connector->hpd_pending |= bits; 1274 drm->hpd_pending |= mask; 1275 schedule_work(&drm->hpd_work); 1276 } 1277 spin_unlock_irqrestore(&drm->hpd_lock, flags); 1278 } 1279 1280 static int 1281 nouveau_connector_irq(struct nvif_event *event, void *repv, u32 repc) 1282 { 1283 struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), irq); 1284 1285 schedule_work(&nv_connector->irq_work); 1286 return NVIF_EVENT_KEEP; 1287 } 1288 1289 static int 1290 nouveau_connector_hotplug(struct nvif_event *event, void *repv, u32 repc) 1291 { 1292 struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), hpd); 1293 struct nvif_conn_event_v0 *rep = repv; 1294 1295 nouveau_connector_hpd(nv_connector, rep->types); 1296 return NVIF_EVENT_KEEP; 1297 } 1298 1299 static ssize_t 1300 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg) 1301 { 1302 struct nouveau_connector *nv_connector = 1303 container_of(obj, typeof(*nv_connector), aux); 1304 struct nouveau_encoder *nv_encoder; 1305 u8 size = msg->size; 1306 int ret; 1307 1308 if (pm_runtime_suspended(nv_connector->base.dev->dev)) 1309 return -EBUSY; 1310 1311 nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP); 1312 if (!nv_encoder) 1313 return -ENODEV; 1314 if (WARN_ON(msg->size > 16)) 1315 return -E2BIG; 1316 1317 ret = nvif_outp_dp_aux_xfer(&nv_encoder->outp, 1318 msg->request, &size, msg->address, msg->buffer); 1319 if (ret >= 0) { 1320 msg->reply = ret; 1321 return size; 1322 } 1323 1324 return ret; 1325 } 1326 1327 static int 1328 drm_conntype_from_dcb(enum dcb_connector_type dcb) 1329 { 1330 switch (dcb) { 1331 case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA; 1332 case DCB_CONNECTOR_TV_0 : 1333 case DCB_CONNECTOR_TV_1 : 1334 case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV; 1335 case DCB_CONNECTOR_DMS59_0 : 1336 case DCB_CONNECTOR_DMS59_1 : 1337 case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII; 1338 case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID; 1339 case DCB_CONNECTOR_LVDS : 1340 case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS; 1341 case DCB_CONNECTOR_DMS59_DP0: 1342 case DCB_CONNECTOR_DMS59_DP1: 1343 case DCB_CONNECTOR_DP : 1344 case DCB_CONNECTOR_mDP : 1345 case DCB_CONNECTOR_USB_C : return DRM_MODE_CONNECTOR_DisplayPort; 1346 case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP; 1347 case DCB_CONNECTOR_HDMI_0 : 1348 case DCB_CONNECTOR_HDMI_1 : 1349 case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA; 1350 case DCB_CONNECTOR_WFD : return DRM_MODE_CONNECTOR_VIRTUAL; 1351 default: 1352 break; 1353 } 1354 1355 return DRM_MODE_CONNECTOR_Unknown; 1356 } 1357 1358 struct drm_connector * 1359 nouveau_connector_create(struct drm_device *dev, int index) 1360 { 1361 struct nouveau_drm *drm = nouveau_drm(dev); 1362 struct nouveau_display *disp = nouveau_display(dev); 1363 struct nouveau_connector *nv_connector = NULL; 1364 struct drm_connector *connector; 1365 struct drm_connector_list_iter conn_iter; 1366 int type, ret = 0; 1367 bool dummy; 1368 1369 drm_connector_list_iter_begin(dev, &conn_iter); 1370 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) { 1371 nv_connector = nouveau_connector(connector); 1372 if (nv_connector->index == index) { 1373 drm_connector_list_iter_end(&conn_iter); 1374 return connector; 1375 } 1376 } 1377 drm_connector_list_iter_end(&conn_iter); 1378 1379 nv_connector = kzalloc_obj(*nv_connector); 1380 if (!nv_connector) 1381 return ERR_PTR(-ENOMEM); 1382 1383 connector = &nv_connector->base; 1384 nv_connector->index = index; 1385 INIT_WORK(&nv_connector->irq_work, nouveau_dp_irq); 1386 1387 if (disp->disp.conn_mask & BIT(nv_connector->index)) { 1388 ret = nvif_conn_ctor(&disp->disp, nv_connector->base.name, nv_connector->index, 1389 &nv_connector->conn); 1390 if (ret) { 1391 kfree(nv_connector); 1392 return ERR_PTR(ret); 1393 } 1394 1395 switch (nv_connector->conn.info.type) { 1396 case NVIF_CONN_VGA : type = DCB_CONNECTOR_VGA; break; 1397 case NVIF_CONN_DVI_I : type = DCB_CONNECTOR_DVI_I; break; 1398 case NVIF_CONN_DVI_D : type = DCB_CONNECTOR_DVI_D; break; 1399 case NVIF_CONN_LVDS : type = DCB_CONNECTOR_LVDS; break; 1400 case NVIF_CONN_LVDS_SPWG: type = DCB_CONNECTOR_LVDS_SPWG; break; 1401 case NVIF_CONN_DP : type = DCB_CONNECTOR_DP; break; 1402 case NVIF_CONN_EDP : type = DCB_CONNECTOR_eDP; break; 1403 case NVIF_CONN_HDMI : type = DCB_CONNECTOR_HDMI_0; break; 1404 default: 1405 WARN_ON(1); 1406 return NULL; 1407 } 1408 1409 nv_connector->type = type; 1410 } else { 1411 u8 *dcb = olddcb_conn(dev, nv_connector->index); 1412 1413 if (dcb) 1414 nv_connector->type = dcb[0]; 1415 else 1416 nv_connector->type = DCB_CONNECTOR_NONE; 1417 1418 /* attempt to parse vbios connector type and hotplug gpio */ 1419 if (nv_connector->type != DCB_CONNECTOR_NONE) { 1420 if (drm_conntype_from_dcb(nv_connector->type) == 1421 DRM_MODE_CONNECTOR_Unknown) { 1422 NV_WARN(drm, "unknown connector type %02x\n", 1423 nv_connector->type); 1424 nv_connector->type = DCB_CONNECTOR_NONE; 1425 } 1426 } 1427 1428 /* no vbios data, or an unknown dcb connector type - attempt to 1429 * figure out something suitable ourselves 1430 */ 1431 if (nv_connector->type == DCB_CONNECTOR_NONE && 1432 !WARN_ON(drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)) { 1433 struct dcb_table *dcbt = &drm->vbios.dcb; 1434 u32 encoders = 0; 1435 int i; 1436 1437 for (i = 0; i < dcbt->entries; i++) { 1438 if (dcbt->entry[i].connector == nv_connector->index) 1439 encoders |= (1 << dcbt->entry[i].type); 1440 } 1441 1442 if (encoders & (1 << DCB_OUTPUT_TMDS)) { 1443 if (encoders & (1 << DCB_OUTPUT_ANALOG)) 1444 nv_connector->type = DCB_CONNECTOR_DVI_I; 1445 else 1446 nv_connector->type = DCB_CONNECTOR_DVI_D; 1447 } else 1448 if (encoders & (1 << DCB_OUTPUT_ANALOG)) { 1449 nv_connector->type = DCB_CONNECTOR_VGA; 1450 } else 1451 if (encoders & (1 << DCB_OUTPUT_LVDS)) { 1452 nv_connector->type = DCB_CONNECTOR_LVDS; 1453 } else 1454 if (encoders & (1 << DCB_OUTPUT_TV)) { 1455 nv_connector->type = DCB_CONNECTOR_TV_0; 1456 } 1457 } 1458 } 1459 1460 type = drm_conntype_from_dcb(nv_connector->type); 1461 if (type == DRM_MODE_CONNECTOR_LVDS) 1462 drm_connector_init(dev, connector, &nouveau_connector_funcs_lvds, type); 1463 else 1464 drm_connector_init(dev, connector, &nouveau_connector_funcs, type); 1465 1466 switch (type) { 1467 case DRM_MODE_CONNECTOR_LVDS: 1468 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy); 1469 if (ret) { 1470 NV_ERROR(drm, "Error parsing LVDS table, disabling\n"); 1471 kfree(nv_connector); 1472 return ERR_PTR(ret); 1473 } 1474 1475 break; 1476 case DRM_MODE_CONNECTOR_DisplayPort: 1477 case DRM_MODE_CONNECTOR_eDP: 1478 nv_connector->aux.dev = connector->kdev; 1479 nv_connector->aux.drm_dev = dev; 1480 nv_connector->aux.transfer = nouveau_connector_aux_xfer; 1481 nv_connector->aux.name = connector->name; 1482 if (disp->disp.object.oclass >= GB202_DISP) 1483 nv_connector->aux.no_zero_sized = true; 1484 drm_dp_aux_init(&nv_connector->aux); 1485 break; 1486 default: 1487 break; 1488 } 1489 1490 /* HDMI 3D support */ 1491 if ((disp->disp.object.oclass >= G82_DISP) 1492 && ((type == DRM_MODE_CONNECTOR_DisplayPort) 1493 || (type == DRM_MODE_CONNECTOR_eDP) 1494 || (type == DRM_MODE_CONNECTOR_HDMIA))) 1495 connector->stereo_allowed = true; 1496 1497 /* defaults, will get overridden in detect() */ 1498 connector->interlace_allowed = false; 1499 connector->doublescan_allowed = false; 1500 1501 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs); 1502 connector->polled = DRM_CONNECTOR_POLL_CONNECT; 1503 1504 if (nvif_object_constructed(&nv_connector->conn.object)) { 1505 ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsHotplug", 1506 nouveau_connector_hotplug, 1507 NVIF_CONN_EVENT_V0_PLUG | NVIF_CONN_EVENT_V0_UNPLUG, 1508 &nv_connector->hpd); 1509 if (ret == 0) 1510 connector->polled = DRM_CONNECTOR_POLL_HPD; 1511 1512 if (nv_connector->aux.transfer) { 1513 ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsDpIrq", 1514 nouveau_connector_irq, NVIF_CONN_EVENT_V0_IRQ, 1515 &nv_connector->irq); 1516 if (ret) { 1517 nvif_event_dtor(&nv_connector->hpd); 1518 nvif_conn_dtor(&nv_connector->conn); 1519 goto drm_conn_err; 1520 } 1521 } 1522 } 1523 1524 connector->funcs->reset(connector); 1525 nouveau_conn_attach_properties(connector); 1526 1527 /* Default scaling mode */ 1528 switch (nv_connector->type) { 1529 case DCB_CONNECTOR_LVDS: 1530 case DCB_CONNECTOR_LVDS_SPWG: 1531 case DCB_CONNECTOR_eDP: 1532 /* see note in nouveau_connector_set_property() */ 1533 if (disp->disp.object.oclass < NV50_DISP) { 1534 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN; 1535 break; 1536 } 1537 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE; 1538 break; 1539 default: 1540 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE; 1541 break; 1542 } 1543 1544 /* dithering properties */ 1545 switch (nv_connector->type) { 1546 case DCB_CONNECTOR_TV_0: 1547 case DCB_CONNECTOR_TV_1: 1548 case DCB_CONNECTOR_TV_3: 1549 case DCB_CONNECTOR_VGA: 1550 break; 1551 default: 1552 nv_connector->dithering_mode = DITHERING_MODE_AUTO; 1553 break; 1554 } 1555 1556 switch (type) { 1557 case DRM_MODE_CONNECTOR_DisplayPort: 1558 nv_connector->dp_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP); 1559 fallthrough; 1560 case DRM_MODE_CONNECTOR_eDP: 1561 drm_dp_cec_register_connector(&nv_connector->aux, connector); 1562 break; 1563 } 1564 1565 drm_connector_register(connector); 1566 return connector; 1567 1568 drm_conn_err: 1569 drm_connector_cleanup(connector); 1570 kfree(nv_connector); 1571 return ERR_PTR(ret); 1572 } 1573