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/cl0046.h> 51 #include <nvif/event.h> 52 53 struct drm_display_mode * 54 nouveau_conn_native_mode(struct drm_connector *connector) 55 { 56 const struct drm_connector_helper_funcs *helper = connector->helper_private; 57 struct nouveau_drm *drm = nouveau_drm(connector->dev); 58 struct drm_device *dev = connector->dev; 59 struct drm_display_mode *mode, *largest = NULL; 60 int high_w = 0, high_h = 0, high_v = 0; 61 62 list_for_each_entry(mode, &connector->probed_modes, head) { 63 if (helper->mode_valid(connector, mode) != MODE_OK || 64 (mode->flags & DRM_MODE_FLAG_INTERLACE)) 65 continue; 66 67 /* Use preferred mode if there is one.. */ 68 if (mode->type & DRM_MODE_TYPE_PREFERRED) { 69 NV_DEBUG(drm, "native mode from preferred\n"); 70 return drm_mode_duplicate(dev, mode); 71 } 72 73 /* Otherwise, take the resolution with the largest width, then 74 * height, then vertical refresh 75 */ 76 if (mode->hdisplay < high_w) 77 continue; 78 79 if (mode->hdisplay == high_w && mode->vdisplay < high_h) 80 continue; 81 82 if (mode->hdisplay == high_w && mode->vdisplay == high_h && 83 drm_mode_vrefresh(mode) < high_v) 84 continue; 85 86 high_w = mode->hdisplay; 87 high_h = mode->vdisplay; 88 high_v = drm_mode_vrefresh(mode); 89 largest = mode; 90 } 91 92 NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n", 93 high_w, high_h, high_v); 94 return largest ? drm_mode_duplicate(dev, largest) : NULL; 95 } 96 97 int 98 nouveau_conn_atomic_get_property(struct drm_connector *connector, 99 const struct drm_connector_state *state, 100 struct drm_property *property, u64 *val) 101 { 102 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state); 103 struct nouveau_display *disp = nouveau_display(connector->dev); 104 struct drm_device *dev = connector->dev; 105 106 if (property == dev->mode_config.scaling_mode_property) 107 *val = asyc->scaler.mode; 108 else if (property == disp->underscan_property) 109 *val = asyc->scaler.underscan.mode; 110 else if (property == disp->underscan_hborder_property) 111 *val = asyc->scaler.underscan.hborder; 112 else if (property == disp->underscan_vborder_property) 113 *val = asyc->scaler.underscan.vborder; 114 else if (property == disp->dithering_mode) 115 *val = asyc->dither.mode; 116 else if (property == disp->dithering_depth) 117 *val = asyc->dither.depth; 118 else if (property == disp->vibrant_hue_property) 119 *val = asyc->procamp.vibrant_hue; 120 else if (property == disp->color_vibrance_property) 121 *val = asyc->procamp.color_vibrance; 122 else 123 return -EINVAL; 124 125 return 0; 126 } 127 128 int 129 nouveau_conn_atomic_set_property(struct drm_connector *connector, 130 struct drm_connector_state *state, 131 struct drm_property *property, u64 val) 132 { 133 struct drm_device *dev = connector->dev; 134 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state); 135 struct nouveau_display *disp = nouveau_display(dev); 136 137 if (property == dev->mode_config.scaling_mode_property) { 138 switch (val) { 139 case DRM_MODE_SCALE_NONE: 140 /* We allow 'None' for EDID modes, even on a fixed 141 * panel (some exist with support for lower refresh 142 * rates, which people might want to use for power- 143 * saving purposes). 144 * 145 * Non-EDID modes will force the use of GPU scaling 146 * to the native mode regardless of this setting. 147 */ 148 switch (connector->connector_type) { 149 case DRM_MODE_CONNECTOR_LVDS: 150 case DRM_MODE_CONNECTOR_eDP: 151 /* ... except prior to G80, where the code 152 * doesn't support such things. 153 */ 154 if (disp->disp.object.oclass < NV50_DISP) 155 return -EINVAL; 156 break; 157 default: 158 break; 159 } 160 break; 161 case DRM_MODE_SCALE_FULLSCREEN: 162 case DRM_MODE_SCALE_CENTER: 163 case DRM_MODE_SCALE_ASPECT: 164 break; 165 default: 166 return -EINVAL; 167 } 168 169 if (asyc->scaler.mode != val) { 170 asyc->scaler.mode = val; 171 asyc->set.scaler = true; 172 } 173 } else 174 if (property == disp->underscan_property) { 175 if (asyc->scaler.underscan.mode != val) { 176 asyc->scaler.underscan.mode = val; 177 asyc->set.scaler = true; 178 } 179 } else 180 if (property == disp->underscan_hborder_property) { 181 if (asyc->scaler.underscan.hborder != val) { 182 asyc->scaler.underscan.hborder = val; 183 asyc->set.scaler = true; 184 } 185 } else 186 if (property == disp->underscan_vborder_property) { 187 if (asyc->scaler.underscan.vborder != val) { 188 asyc->scaler.underscan.vborder = val; 189 asyc->set.scaler = true; 190 } 191 } else 192 if (property == disp->dithering_mode) { 193 if (asyc->dither.mode != val) { 194 asyc->dither.mode = val; 195 asyc->set.dither = true; 196 } 197 } else 198 if (property == disp->dithering_depth) { 199 if (asyc->dither.mode != val) { 200 asyc->dither.depth = val; 201 asyc->set.dither = true; 202 } 203 } else 204 if (property == disp->vibrant_hue_property) { 205 if (asyc->procamp.vibrant_hue != val) { 206 asyc->procamp.vibrant_hue = val; 207 asyc->set.procamp = true; 208 } 209 } else 210 if (property == disp->color_vibrance_property) { 211 if (asyc->procamp.color_vibrance != val) { 212 asyc->procamp.color_vibrance = val; 213 asyc->set.procamp = true; 214 } 215 } else { 216 return -EINVAL; 217 } 218 219 return 0; 220 } 221 222 void 223 nouveau_conn_atomic_destroy_state(struct drm_connector *connector, 224 struct drm_connector_state *state) 225 { 226 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state); 227 __drm_atomic_helper_connector_destroy_state(&asyc->state); 228 kfree(asyc); 229 } 230 231 struct drm_connector_state * 232 nouveau_conn_atomic_duplicate_state(struct drm_connector *connector) 233 { 234 struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state); 235 struct nouveau_conn_atom *asyc; 236 if (!(asyc = kmalloc(sizeof(*asyc), GFP_KERNEL))) 237 return NULL; 238 __drm_atomic_helper_connector_duplicate_state(connector, &asyc->state); 239 asyc->dither = armc->dither; 240 asyc->scaler = armc->scaler; 241 asyc->procamp = armc->procamp; 242 asyc->set.mask = 0; 243 return &asyc->state; 244 } 245 246 void 247 nouveau_conn_reset(struct drm_connector *connector) 248 { 249 struct nouveau_connector *nv_connector = nouveau_connector(connector); 250 struct nouveau_conn_atom *asyc; 251 252 if (drm_drv_uses_atomic_modeset(connector->dev)) { 253 if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL)))) 254 return; 255 256 if (connector->state) 257 nouveau_conn_atomic_destroy_state(connector, 258 connector->state); 259 260 __drm_atomic_helper_connector_reset(connector, &asyc->state); 261 } else { 262 asyc = &nv_connector->properties_state; 263 } 264 265 asyc->dither.mode = DITHERING_MODE_AUTO; 266 asyc->dither.depth = DITHERING_DEPTH_AUTO; 267 asyc->scaler.mode = DRM_MODE_SCALE_NONE; 268 asyc->scaler.underscan.mode = UNDERSCAN_OFF; 269 asyc->procamp.color_vibrance = 150; 270 asyc->procamp.vibrant_hue = 90; 271 272 if (nouveau_display(connector->dev)->disp.object.oclass < NV50_DISP) { 273 switch (connector->connector_type) { 274 case DRM_MODE_CONNECTOR_LVDS: 275 /* See note in nouveau_conn_atomic_set_property(). */ 276 asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN; 277 break; 278 default: 279 break; 280 } 281 } 282 } 283 284 void 285 nouveau_conn_attach_properties(struct drm_connector *connector) 286 { 287 struct drm_device *dev = connector->dev; 288 struct nouveau_display *disp = nouveau_display(dev); 289 struct nouveau_connector *nv_connector = nouveau_connector(connector); 290 struct nouveau_conn_atom *armc; 291 292 if (drm_drv_uses_atomic_modeset(connector->dev)) 293 armc = nouveau_conn_atom(connector->state); 294 else 295 armc = &nv_connector->properties_state; 296 297 /* Init DVI-I specific properties. */ 298 if (connector->connector_type == DRM_MODE_CONNECTOR_DVII) 299 drm_object_attach_property(&connector->base, dev->mode_config. 300 dvi_i_subconnector_property, 0); 301 302 /* Add overscan compensation options to digital outputs. */ 303 if (disp->underscan_property && 304 (connector->connector_type == DRM_MODE_CONNECTOR_DVID || 305 connector->connector_type == DRM_MODE_CONNECTOR_DVII || 306 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || 307 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) { 308 drm_object_attach_property(&connector->base, 309 disp->underscan_property, 310 UNDERSCAN_OFF); 311 drm_object_attach_property(&connector->base, 312 disp->underscan_hborder_property, 0); 313 drm_object_attach_property(&connector->base, 314 disp->underscan_vborder_property, 0); 315 } 316 317 /* Add hue and saturation options. */ 318 if (disp->vibrant_hue_property) 319 drm_object_attach_property(&connector->base, 320 disp->vibrant_hue_property, 321 armc->procamp.vibrant_hue); 322 if (disp->color_vibrance_property) 323 drm_object_attach_property(&connector->base, 324 disp->color_vibrance_property, 325 armc->procamp.color_vibrance); 326 327 /* Scaling mode property. */ 328 switch (connector->connector_type) { 329 case DRM_MODE_CONNECTOR_TV: 330 break; 331 case DRM_MODE_CONNECTOR_VGA: 332 if (disp->disp.object.oclass < NV50_DISP) 333 break; /* Can only scale on DFPs. */ 334 fallthrough; 335 default: 336 drm_object_attach_property(&connector->base, dev->mode_config. 337 scaling_mode_property, 338 armc->scaler.mode); 339 break; 340 } 341 342 /* Dithering properties. */ 343 switch (connector->connector_type) { 344 case DRM_MODE_CONNECTOR_TV: 345 case DRM_MODE_CONNECTOR_VGA: 346 break; 347 default: 348 if (disp->dithering_mode) { 349 drm_object_attach_property(&connector->base, 350 disp->dithering_mode, 351 armc->dither.mode); 352 } 353 if (disp->dithering_depth) { 354 drm_object_attach_property(&connector->base, 355 disp->dithering_depth, 356 armc->dither.depth); 357 } 358 break; 359 } 360 } 361 362 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection"); 363 int nouveau_tv_disable = 0; 364 module_param_named(tv_disable, nouveau_tv_disable, int, 0400); 365 366 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status"); 367 int nouveau_ignorelid = 0; 368 module_param_named(ignorelid, nouveau_ignorelid, int, 0400); 369 370 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)"); 371 int nouveau_duallink = 1; 372 module_param_named(duallink, nouveau_duallink, int, 0400); 373 374 MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)"); 375 int nouveau_hdmimhz = 0; 376 module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400); 377 378 struct nouveau_encoder * 379 find_encoder(struct drm_connector *connector, int type) 380 { 381 struct nouveau_encoder *nv_encoder; 382 struct drm_encoder *enc; 383 384 drm_connector_for_each_possible_encoder(connector, enc) { 385 nv_encoder = nouveau_encoder(enc); 386 387 if (type == DCB_OUTPUT_ANY || 388 (nv_encoder->dcb && nv_encoder->dcb->type == type)) 389 return nv_encoder; 390 } 391 392 return NULL; 393 } 394 395 static void 396 nouveau_connector_destroy(struct drm_connector *connector) 397 { 398 struct nouveau_connector *nv_connector = nouveau_connector(connector); 399 nvif_notify_dtor(&nv_connector->hpd); 400 kfree(nv_connector->edid); 401 drm_connector_unregister(connector); 402 drm_connector_cleanup(connector); 403 if (nv_connector->aux.transfer) { 404 drm_dp_cec_unregister_connector(&nv_connector->aux); 405 kfree(nv_connector->aux.name); 406 } 407 nvif_conn_dtor(&nv_connector->conn); 408 kfree(connector); 409 } 410 411 static struct nouveau_encoder * 412 nouveau_connector_ddc_detect(struct drm_connector *connector) 413 { 414 struct drm_device *dev = connector->dev; 415 struct pci_dev *pdev = to_pci_dev(dev->dev); 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 switch (nv_encoder->dcb->type) { 425 case DCB_OUTPUT_DP: 426 ret = nouveau_dp_detect(nouveau_connector(connector), 427 nv_encoder); 428 if (ret == NOUVEAU_DP_MST) 429 return NULL; 430 else if (ret == NOUVEAU_DP_SST) 431 found = nv_encoder; 432 433 break; 434 case DCB_OUTPUT_LVDS: 435 switcheroo_ddc = !!(vga_switcheroo_handler_flags() & 436 VGA_SWITCHEROO_CAN_SWITCH_DDC); 437 fallthrough; 438 default: 439 if (!nv_encoder->i2c) 440 break; 441 442 if (switcheroo_ddc) 443 vga_switcheroo_lock_ddc(pdev); 444 if (nvkm_probe_i2c(nv_encoder->i2c, 0x50)) 445 found = nv_encoder; 446 if (switcheroo_ddc) 447 vga_switcheroo_unlock_ddc(pdev); 448 449 break; 450 } 451 if (found) 452 break; 453 } 454 455 return found; 456 } 457 458 static struct nouveau_encoder * 459 nouveau_connector_of_detect(struct drm_connector *connector) 460 { 461 #ifdef __powerpc__ 462 struct drm_device *dev = connector->dev; 463 struct nouveau_connector *nv_connector = nouveau_connector(connector); 464 struct nouveau_encoder *nv_encoder; 465 struct pci_dev *pdev = to_pci_dev(dev->dev); 466 struct device_node *cn, *dn = pci_device_to_OF_node(pdev); 467 468 if (!dn || 469 !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) || 470 (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG)))) 471 return NULL; 472 473 for_each_child_of_node(dn, cn) { 474 const char *name = of_get_property(cn, "name", NULL); 475 const void *edid = of_get_property(cn, "EDID", NULL); 476 int idx = name ? name[strlen(name) - 1] - 'A' : 0; 477 478 if (nv_encoder->dcb->i2c_index == idx && edid) { 479 nv_connector->edid = 480 kmemdup(edid, EDID_LENGTH, GFP_KERNEL); 481 of_node_put(cn); 482 return nv_encoder; 483 } 484 } 485 #endif 486 return NULL; 487 } 488 489 static void 490 nouveau_connector_set_encoder(struct drm_connector *connector, 491 struct nouveau_encoder *nv_encoder) 492 { 493 struct nouveau_connector *nv_connector = nouveau_connector(connector); 494 struct nouveau_drm *drm = nouveau_drm(connector->dev); 495 struct drm_device *dev = connector->dev; 496 struct pci_dev *pdev = to_pci_dev(dev->dev); 497 498 if (nv_connector->detected_encoder == nv_encoder) 499 return; 500 nv_connector->detected_encoder = nv_encoder; 501 502 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 503 if (nv_encoder->dcb->type == DCB_OUTPUT_DP) 504 connector->interlace_allowed = 505 nv_encoder->caps.dp_interlace; 506 else 507 connector->interlace_allowed = 508 drm->client.device.info.family < NV_DEVICE_INFO_V0_VOLTA; 509 connector->doublescan_allowed = true; 510 } else 511 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS || 512 nv_encoder->dcb->type == DCB_OUTPUT_TMDS) { 513 connector->doublescan_allowed = false; 514 connector->interlace_allowed = false; 515 } else { 516 connector->doublescan_allowed = true; 517 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN || 518 (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS && 519 (pdev->device & 0x0ff0) != 0x0100 && 520 (pdev->device & 0x0ff0) != 0x0150)) 521 /* HW is broken */ 522 connector->interlace_allowed = false; 523 else 524 connector->interlace_allowed = true; 525 } 526 527 if (nv_connector->type == DCB_CONNECTOR_DVI_I) { 528 drm_object_property_set_value(&connector->base, 529 dev->mode_config.dvi_i_subconnector_property, 530 nv_encoder->dcb->type == DCB_OUTPUT_TMDS ? 531 DRM_MODE_SUBCONNECTOR_DVID : 532 DRM_MODE_SUBCONNECTOR_DVIA); 533 } 534 } 535 536 static void 537 nouveau_connector_set_edid(struct nouveau_connector *nv_connector, 538 struct edid *edid) 539 { 540 if (nv_connector->edid != edid) { 541 struct edid *old_edid = nv_connector->edid; 542 543 drm_connector_update_edid_property(&nv_connector->base, edid); 544 kfree(old_edid); 545 nv_connector->edid = edid; 546 } 547 } 548 549 static enum drm_connector_status 550 nouveau_connector_detect(struct drm_connector *connector, bool force) 551 { 552 struct drm_device *dev = connector->dev; 553 struct nouveau_drm *drm = nouveau_drm(dev); 554 struct nouveau_connector *nv_connector = nouveau_connector(connector); 555 struct nouveau_encoder *nv_encoder = NULL; 556 struct nouveau_encoder *nv_partner; 557 struct i2c_adapter *i2c; 558 int type; 559 int ret; 560 enum drm_connector_status conn_status = connector_status_disconnected; 561 562 /* Outputs are only polled while runtime active, so resuming the 563 * device here is unnecessary (and would deadlock upon runtime suspend 564 * because it waits for polling to finish). We do however, want to 565 * prevent the autosuspend timer from elapsing during this operation 566 * if possible. 567 */ 568 if (drm_kms_helper_is_poll_worker()) { 569 pm_runtime_get_noresume(dev->dev); 570 } else { 571 ret = pm_runtime_get_sync(dev->dev); 572 if (ret < 0 && ret != -EACCES) { 573 pm_runtime_put_autosuspend(dev->dev); 574 nouveau_connector_set_edid(nv_connector, NULL); 575 return conn_status; 576 } 577 } 578 579 nv_encoder = nouveau_connector_ddc_detect(connector); 580 if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) { 581 struct edid *new_edid; 582 583 if ((vga_switcheroo_handler_flags() & 584 VGA_SWITCHEROO_CAN_SWITCH_DDC) && 585 nv_connector->type == DCB_CONNECTOR_LVDS) 586 new_edid = drm_get_edid_switcheroo(connector, i2c); 587 else 588 new_edid = drm_get_edid(connector, i2c); 589 590 nouveau_connector_set_edid(nv_connector, new_edid); 591 if (!nv_connector->edid) { 592 NV_ERROR(drm, "DDC responded, but no EDID for %s\n", 593 connector->name); 594 goto detect_analog; 595 } 596 597 /* Override encoder type for DVI-I based on whether EDID 598 * says the display is digital or analog, both use the 599 * same i2c channel so the value returned from ddc_detect 600 * isn't necessarily correct. 601 */ 602 nv_partner = NULL; 603 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS) 604 nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG); 605 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG) 606 nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS); 607 608 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG && 609 nv_partner->dcb->type == DCB_OUTPUT_TMDS) || 610 (nv_encoder->dcb->type == DCB_OUTPUT_TMDS && 611 nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) { 612 if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL) 613 type = DCB_OUTPUT_TMDS; 614 else 615 type = DCB_OUTPUT_ANALOG; 616 617 nv_encoder = find_encoder(connector, type); 618 } 619 620 nouveau_connector_set_encoder(connector, nv_encoder); 621 conn_status = connector_status_connected; 622 drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid); 623 goto out; 624 } else { 625 nouveau_connector_set_edid(nv_connector, NULL); 626 } 627 628 nv_encoder = nouveau_connector_of_detect(connector); 629 if (nv_encoder) { 630 nouveau_connector_set_encoder(connector, nv_encoder); 631 conn_status = connector_status_connected; 632 goto out; 633 } 634 635 detect_analog: 636 nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG); 637 if (!nv_encoder && !nouveau_tv_disable) 638 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV); 639 if (nv_encoder && force) { 640 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 641 const struct drm_encoder_helper_funcs *helper = 642 encoder->helper_private; 643 644 if (helper->detect(encoder, connector) == 645 connector_status_connected) { 646 nouveau_connector_set_encoder(connector, nv_encoder); 647 conn_status = connector_status_connected; 648 goto out; 649 } 650 } 651 652 out: 653 if (!nv_connector->edid) 654 drm_dp_cec_unset_edid(&nv_connector->aux); 655 656 pm_runtime_mark_last_busy(dev->dev); 657 pm_runtime_put_autosuspend(dev->dev); 658 659 return conn_status; 660 } 661 662 static enum drm_connector_status 663 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force) 664 { 665 struct drm_device *dev = connector->dev; 666 struct nouveau_drm *drm = nouveau_drm(dev); 667 struct nouveau_connector *nv_connector = nouveau_connector(connector); 668 struct nouveau_encoder *nv_encoder = NULL; 669 struct edid *edid = NULL; 670 enum drm_connector_status status = connector_status_disconnected; 671 672 nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS); 673 if (!nv_encoder) 674 goto out; 675 676 /* Try retrieving EDID via DDC */ 677 if (!drm->vbios.fp_no_ddc) { 678 status = nouveau_connector_detect(connector, force); 679 if (status == connector_status_connected) { 680 edid = nv_connector->edid; 681 goto out; 682 } 683 } 684 685 /* On some laptops (Sony, i'm looking at you) there appears to 686 * be no direct way of accessing the panel's EDID. The only 687 * option available to us appears to be to ask ACPI for help.. 688 * 689 * It's important this check's before trying straps, one of the 690 * said manufacturer's laptops are configured in such a way 691 * the nouveau decides an entry in the VBIOS FP mode table is 692 * valid - it's not (rh#613284) 693 */ 694 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) { 695 edid = nouveau_acpi_edid(dev, connector); 696 if (edid) { 697 status = connector_status_connected; 698 goto out; 699 } 700 } 701 702 /* If no EDID found above, and the VBIOS indicates a hardcoded 703 * modeline is avalilable for the panel, set it as the panel's 704 * native mode and exit. 705 */ 706 if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc || 707 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) { 708 status = connector_status_connected; 709 goto out; 710 } 711 712 /* Still nothing, some VBIOS images have a hardcoded EDID block 713 * stored for the panel stored in them. 714 */ 715 if (!drm->vbios.fp_no_ddc) { 716 edid = (struct edid *)nouveau_bios_embedded_edid(dev); 717 if (edid) { 718 edid = kmemdup(edid, EDID_LENGTH, GFP_KERNEL); 719 if (edid) 720 status = connector_status_connected; 721 } 722 } 723 724 out: 725 #if defined(CONFIG_ACPI_BUTTON) || \ 726 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE)) 727 if (status == connector_status_connected && 728 !nouveau_ignorelid && !acpi_lid_open()) 729 status = connector_status_unknown; 730 #endif 731 732 nouveau_connector_set_edid(nv_connector, edid); 733 nouveau_connector_set_encoder(connector, nv_encoder); 734 return status; 735 } 736 737 static void 738 nouveau_connector_force(struct drm_connector *connector) 739 { 740 struct nouveau_drm *drm = nouveau_drm(connector->dev); 741 struct nouveau_connector *nv_connector = nouveau_connector(connector); 742 struct nouveau_encoder *nv_encoder; 743 int type; 744 745 if (nv_connector->type == DCB_CONNECTOR_DVI_I) { 746 if (connector->force == DRM_FORCE_ON_DIGITAL) 747 type = DCB_OUTPUT_TMDS; 748 else 749 type = DCB_OUTPUT_ANALOG; 750 } else 751 type = DCB_OUTPUT_ANY; 752 753 nv_encoder = find_encoder(connector, type); 754 if (!nv_encoder) { 755 NV_ERROR(drm, "can't find encoder to force %s on!\n", 756 connector->name); 757 connector->status = connector_status_disconnected; 758 return; 759 } 760 761 nouveau_connector_set_encoder(connector, nv_encoder); 762 } 763 764 static int 765 nouveau_connector_set_property(struct drm_connector *connector, 766 struct drm_property *property, uint64_t value) 767 { 768 struct nouveau_connector *nv_connector = nouveau_connector(connector); 769 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 770 struct nouveau_conn_atom *asyc = &nv_connector->properties_state; 771 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 772 int ret; 773 774 ret = connector->funcs->atomic_set_property(&nv_connector->base, 775 &asyc->state, 776 property, value); 777 if (ret) { 778 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV) 779 return get_slave_funcs(encoder)->set_property( 780 encoder, connector, property, value); 781 return ret; 782 } 783 784 nv_connector->scaling_mode = asyc->scaler.mode; 785 nv_connector->dithering_mode = asyc->dither.mode; 786 787 if (connector->encoder && connector->encoder->crtc) { 788 ret = drm_crtc_helper_set_mode(connector->encoder->crtc, 789 &connector->encoder->crtc->mode, 790 connector->encoder->crtc->x, 791 connector->encoder->crtc->y, 792 NULL); 793 if (!ret) 794 return -EINVAL; 795 } 796 797 return 0; 798 } 799 800 struct moderec { 801 int hdisplay; 802 int vdisplay; 803 }; 804 805 static struct moderec scaler_modes[] = { 806 { 1920, 1200 }, 807 { 1920, 1080 }, 808 { 1680, 1050 }, 809 { 1600, 1200 }, 810 { 1400, 1050 }, 811 { 1280, 1024 }, 812 { 1280, 960 }, 813 { 1152, 864 }, 814 { 1024, 768 }, 815 { 800, 600 }, 816 { 720, 400 }, 817 { 640, 480 }, 818 { 640, 400 }, 819 { 640, 350 }, 820 {} 821 }; 822 823 static int 824 nouveau_connector_scaler_modes_add(struct drm_connector *connector) 825 { 826 struct nouveau_connector *nv_connector = nouveau_connector(connector); 827 struct drm_display_mode *native = nv_connector->native_mode, *m; 828 struct drm_device *dev = connector->dev; 829 struct moderec *mode = &scaler_modes[0]; 830 int modes = 0; 831 832 if (!native) 833 return 0; 834 835 while (mode->hdisplay) { 836 if (mode->hdisplay <= native->hdisplay && 837 mode->vdisplay <= native->vdisplay && 838 (mode->hdisplay != native->hdisplay || 839 mode->vdisplay != native->vdisplay)) { 840 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay, 841 drm_mode_vrefresh(native), false, 842 false, false); 843 if (!m) 844 continue; 845 846 drm_mode_probed_add(connector, m); 847 modes++; 848 } 849 850 mode++; 851 } 852 853 return modes; 854 } 855 856 static void 857 nouveau_connector_detect_depth(struct drm_connector *connector) 858 { 859 struct nouveau_drm *drm = nouveau_drm(connector->dev); 860 struct nouveau_connector *nv_connector = nouveau_connector(connector); 861 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 862 struct nvbios *bios = &drm->vbios; 863 struct drm_display_mode *mode = nv_connector->native_mode; 864 bool duallink; 865 866 /* if the edid is feeling nice enough to provide this info, use it */ 867 if (nv_connector->edid && connector->display_info.bpc) 868 return; 869 870 /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */ 871 if (nv_connector->type == DCB_CONNECTOR_eDP) { 872 connector->display_info.bpc = 6; 873 return; 874 } 875 876 /* we're out of options unless we're LVDS, default to 8bpc */ 877 if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) { 878 connector->display_info.bpc = 8; 879 return; 880 } 881 882 connector->display_info.bpc = 6; 883 884 /* LVDS: panel straps */ 885 if (bios->fp_no_ddc) { 886 if (bios->fp.if_is_24bit) 887 connector->display_info.bpc = 8; 888 return; 889 } 890 891 /* LVDS: DDC panel, need to first determine the number of links to 892 * know which if_is_24bit flag to check... 893 */ 894 if (nv_connector->edid && 895 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG) 896 duallink = ((u8 *)nv_connector->edid)[121] == 2; 897 else 898 duallink = mode->clock >= bios->fp.duallink_transition_clk; 899 900 if ((!duallink && (bios->fp.strapless_is_24bit & 1)) || 901 ( duallink && (bios->fp.strapless_is_24bit & 2))) 902 connector->display_info.bpc = 8; 903 } 904 905 static int 906 nouveau_connector_late_register(struct drm_connector *connector) 907 { 908 int ret; 909 910 ret = nouveau_backlight_init(connector); 911 if (ret) 912 return ret; 913 914 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP || 915 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) { 916 ret = drm_dp_aux_register(&nouveau_connector(connector)->aux); 917 if (ret) 918 goto backlight_fini; 919 } 920 921 return 0; 922 backlight_fini: 923 nouveau_backlight_fini(connector); 924 return ret; 925 } 926 927 static void 928 nouveau_connector_early_unregister(struct drm_connector *connector) 929 { 930 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP || 931 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) 932 drm_dp_aux_unregister(&nouveau_connector(connector)->aux); 933 934 nouveau_backlight_fini(connector); 935 } 936 937 static int 938 nouveau_connector_get_modes(struct drm_connector *connector) 939 { 940 struct drm_device *dev = connector->dev; 941 struct nouveau_drm *drm = nouveau_drm(dev); 942 struct nouveau_connector *nv_connector = nouveau_connector(connector); 943 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 944 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 945 int ret = 0; 946 947 /* destroy the native mode, the attached monitor could have changed. 948 */ 949 if (nv_connector->native_mode) { 950 drm_mode_destroy(dev, nv_connector->native_mode); 951 nv_connector->native_mode = NULL; 952 } 953 954 if (nv_connector->edid) 955 ret = drm_add_edid_modes(connector, nv_connector->edid); 956 else 957 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS && 958 (nv_encoder->dcb->lvdsconf.use_straps_for_mode || 959 drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) { 960 struct drm_display_mode mode; 961 962 nouveau_bios_fp_mode(dev, &mode); 963 nv_connector->native_mode = drm_mode_duplicate(dev, &mode); 964 } 965 966 /* Determine display colour depth for everything except LVDS now, 967 * DP requires this before mode_valid() is called. 968 */ 969 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS) 970 nouveau_connector_detect_depth(connector); 971 972 /* Find the native mode if this is a digital panel, if we didn't 973 * find any modes through DDC previously add the native mode to 974 * the list of modes. 975 */ 976 if (!nv_connector->native_mode) 977 nv_connector->native_mode = nouveau_conn_native_mode(connector); 978 if (ret == 0 && nv_connector->native_mode) { 979 struct drm_display_mode *mode; 980 981 mode = drm_mode_duplicate(dev, nv_connector->native_mode); 982 drm_mode_probed_add(connector, mode); 983 ret = 1; 984 } 985 986 /* Determine LVDS colour depth, must happen after determining 987 * "native" mode as some VBIOS tables require us to use the 988 * pixel clock as part of the lookup... 989 */ 990 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS) 991 nouveau_connector_detect_depth(connector); 992 993 if (nv_encoder->dcb->type == DCB_OUTPUT_TV) 994 ret = get_slave_funcs(encoder)->get_modes(encoder, connector); 995 996 if (nv_connector->type == DCB_CONNECTOR_LVDS || 997 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG || 998 nv_connector->type == DCB_CONNECTOR_eDP) 999 ret += nouveau_connector_scaler_modes_add(connector); 1000 1001 return ret; 1002 } 1003 1004 static unsigned 1005 get_tmds_link_bandwidth(struct drm_connector *connector) 1006 { 1007 struct nouveau_connector *nv_connector = nouveau_connector(connector); 1008 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 1009 struct nouveau_drm *drm = nouveau_drm(connector->dev); 1010 struct dcb_output *dcb = nv_connector->detected_encoder->dcb; 1011 struct drm_display_info *info = NULL; 1012 unsigned duallink_scale = 1013 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1; 1014 1015 if (drm_detect_hdmi_monitor(nv_connector->edid)) { 1016 info = &nv_connector->base.display_info; 1017 duallink_scale = 1; 1018 } 1019 1020 if (info) { 1021 if (nouveau_hdmimhz > 0) 1022 return nouveau_hdmimhz * 1000; 1023 /* Note: these limits are conservative, some Fermi's 1024 * can do 297 MHz. Unclear how this can be determined. 1025 */ 1026 if (drm->client.device.info.chipset >= 0x120) { 1027 const int max_tmds_clock = 1028 info->hdmi.scdc.scrambling.supported ? 1029 594000 : 340000; 1030 return info->max_tmds_clock ? 1031 min(info->max_tmds_clock, max_tmds_clock) : 1032 max_tmds_clock; 1033 } 1034 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER) 1035 return 297000; 1036 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI) 1037 return 225000; 1038 } 1039 1040 if (dcb->location != DCB_LOC_ON_CHIP || 1041 drm->client.device.info.chipset >= 0x46) 1042 return 165000 * duallink_scale; 1043 else if (drm->client.device.info.chipset >= 0x40) 1044 return 155000 * duallink_scale; 1045 else if (drm->client.device.info.chipset >= 0x18) 1046 return 135000 * duallink_scale; 1047 else 1048 return 112000 * duallink_scale; 1049 } 1050 1051 static enum drm_mode_status 1052 nouveau_connector_mode_valid(struct drm_connector *connector, 1053 struct drm_display_mode *mode) 1054 { 1055 struct nouveau_connector *nv_connector = nouveau_connector(connector); 1056 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 1057 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 1058 unsigned int min_clock = 25000, max_clock = min_clock, clock = mode->clock; 1059 1060 switch (nv_encoder->dcb->type) { 1061 case DCB_OUTPUT_LVDS: 1062 if (nv_connector->native_mode && 1063 (mode->hdisplay > nv_connector->native_mode->hdisplay || 1064 mode->vdisplay > nv_connector->native_mode->vdisplay)) 1065 return MODE_PANEL; 1066 1067 min_clock = 0; 1068 max_clock = 400000; 1069 break; 1070 case DCB_OUTPUT_TMDS: 1071 max_clock = get_tmds_link_bandwidth(connector); 1072 break; 1073 case DCB_OUTPUT_ANALOG: 1074 max_clock = nv_encoder->dcb->crtconf.maxfreq; 1075 if (!max_clock) 1076 max_clock = 350000; 1077 break; 1078 case DCB_OUTPUT_TV: 1079 return get_slave_funcs(encoder)->mode_valid(encoder, mode); 1080 case DCB_OUTPUT_DP: 1081 return nv50_dp_mode_valid(connector, nv_encoder, mode, NULL); 1082 default: 1083 BUG(); 1084 return MODE_BAD; 1085 } 1086 1087 if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING) 1088 clock *= 2; 1089 1090 if (clock < min_clock) 1091 return MODE_CLOCK_LOW; 1092 if (clock > max_clock) 1093 return MODE_CLOCK_HIGH; 1094 1095 return MODE_OK; 1096 } 1097 1098 static struct drm_encoder * 1099 nouveau_connector_best_encoder(struct drm_connector *connector) 1100 { 1101 struct nouveau_connector *nv_connector = nouveau_connector(connector); 1102 1103 if (nv_connector->detected_encoder) 1104 return to_drm_encoder(nv_connector->detected_encoder); 1105 1106 return NULL; 1107 } 1108 1109 static int 1110 nouveau_connector_atomic_check(struct drm_connector *connector, struct drm_atomic_state *state) 1111 { 1112 struct nouveau_connector *nv_conn = nouveau_connector(connector); 1113 struct drm_connector_state *conn_state = 1114 drm_atomic_get_new_connector_state(state, connector); 1115 1116 if (!nv_conn->dp_encoder || !nv50_has_mst(nouveau_drm(connector->dev))) 1117 return 0; 1118 1119 return drm_dp_mst_root_conn_atomic_check(conn_state, &nv_conn->dp_encoder->dp.mstm->mgr); 1120 } 1121 1122 static const struct drm_connector_helper_funcs 1123 nouveau_connector_helper_funcs = { 1124 .get_modes = nouveau_connector_get_modes, 1125 .mode_valid = nouveau_connector_mode_valid, 1126 .best_encoder = nouveau_connector_best_encoder, 1127 .atomic_check = nouveau_connector_atomic_check, 1128 }; 1129 1130 static const struct drm_connector_funcs 1131 nouveau_connector_funcs = { 1132 .dpms = drm_helper_connector_dpms, 1133 .reset = nouveau_conn_reset, 1134 .detect = nouveau_connector_detect, 1135 .force = nouveau_connector_force, 1136 .fill_modes = drm_helper_probe_single_connector_modes, 1137 .set_property = nouveau_connector_set_property, 1138 .destroy = nouveau_connector_destroy, 1139 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state, 1140 .atomic_destroy_state = nouveau_conn_atomic_destroy_state, 1141 .atomic_set_property = nouveau_conn_atomic_set_property, 1142 .atomic_get_property = nouveau_conn_atomic_get_property, 1143 .late_register = nouveau_connector_late_register, 1144 .early_unregister = nouveau_connector_early_unregister, 1145 }; 1146 1147 static const struct drm_connector_funcs 1148 nouveau_connector_funcs_lvds = { 1149 .dpms = drm_helper_connector_dpms, 1150 .reset = nouveau_conn_reset, 1151 .detect = nouveau_connector_detect_lvds, 1152 .force = nouveau_connector_force, 1153 .fill_modes = drm_helper_probe_single_connector_modes, 1154 .set_property = nouveau_connector_set_property, 1155 .destroy = nouveau_connector_destroy, 1156 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state, 1157 .atomic_destroy_state = nouveau_conn_atomic_destroy_state, 1158 .atomic_set_property = nouveau_conn_atomic_set_property, 1159 .atomic_get_property = nouveau_conn_atomic_get_property, 1160 .late_register = nouveau_connector_late_register, 1161 .early_unregister = nouveau_connector_early_unregister, 1162 }; 1163 1164 void 1165 nouveau_connector_hpd(struct drm_connector *connector) 1166 { 1167 struct nouveau_drm *drm = nouveau_drm(connector->dev); 1168 u32 mask = drm_connector_mask(connector); 1169 1170 mutex_lock(&drm->hpd_lock); 1171 if (!(drm->hpd_pending & mask)) { 1172 drm->hpd_pending |= mask; 1173 schedule_work(&drm->hpd_work); 1174 } 1175 mutex_unlock(&drm->hpd_lock); 1176 } 1177 1178 static int 1179 nouveau_connector_hotplug(struct nvif_notify *notify) 1180 { 1181 struct nouveau_connector *nv_connector = 1182 container_of(notify, typeof(*nv_connector), hpd); 1183 struct drm_connector *connector = &nv_connector->base; 1184 struct drm_device *dev = connector->dev; 1185 struct nouveau_drm *drm = nouveau_drm(dev); 1186 const struct nvif_notify_conn_rep_v0 *rep = notify->data; 1187 bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG); 1188 1189 if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) { 1190 nouveau_dp_irq(drm, nv_connector); 1191 return NVIF_NOTIFY_KEEP; 1192 } 1193 1194 NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", connector->name); 1195 nouveau_connector_hpd(connector); 1196 1197 return NVIF_NOTIFY_KEEP; 1198 } 1199 1200 static ssize_t 1201 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg) 1202 { 1203 struct nouveau_connector *nv_connector = 1204 container_of(obj, typeof(*nv_connector), aux); 1205 struct nouveau_encoder *nv_encoder; 1206 struct nvkm_i2c_aux *aux; 1207 u8 size = msg->size; 1208 int ret; 1209 1210 nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP); 1211 if (!nv_encoder || !(aux = nv_encoder->aux)) 1212 return -ENODEV; 1213 if (WARN_ON(msg->size > 16)) 1214 return -E2BIG; 1215 1216 ret = nvkm_i2c_aux_acquire(aux); 1217 if (ret) 1218 return ret; 1219 1220 ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address, 1221 msg->buffer, &size); 1222 nvkm_i2c_aux_release(aux); 1223 if (ret >= 0) { 1224 msg->reply = ret; 1225 return size; 1226 } 1227 1228 return ret; 1229 } 1230 1231 static int 1232 drm_conntype_from_dcb(enum dcb_connector_type dcb) 1233 { 1234 switch (dcb) { 1235 case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA; 1236 case DCB_CONNECTOR_TV_0 : 1237 case DCB_CONNECTOR_TV_1 : 1238 case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV; 1239 case DCB_CONNECTOR_DMS59_0 : 1240 case DCB_CONNECTOR_DMS59_1 : 1241 case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII; 1242 case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID; 1243 case DCB_CONNECTOR_LVDS : 1244 case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS; 1245 case DCB_CONNECTOR_DMS59_DP0: 1246 case DCB_CONNECTOR_DMS59_DP1: 1247 case DCB_CONNECTOR_DP : 1248 case DCB_CONNECTOR_mDP : 1249 case DCB_CONNECTOR_USB_C : return DRM_MODE_CONNECTOR_DisplayPort; 1250 case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP; 1251 case DCB_CONNECTOR_HDMI_0 : 1252 case DCB_CONNECTOR_HDMI_1 : 1253 case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA; 1254 case DCB_CONNECTOR_WFD : return DRM_MODE_CONNECTOR_VIRTUAL; 1255 default: 1256 break; 1257 } 1258 1259 return DRM_MODE_CONNECTOR_Unknown; 1260 } 1261 1262 struct drm_connector * 1263 nouveau_connector_create(struct drm_device *dev, 1264 const struct dcb_output *dcbe) 1265 { 1266 const struct drm_connector_funcs *funcs = &nouveau_connector_funcs; 1267 struct nouveau_drm *drm = nouveau_drm(dev); 1268 struct nouveau_display *disp = nouveau_display(dev); 1269 struct nouveau_connector *nv_connector = NULL; 1270 struct drm_connector *connector; 1271 struct drm_connector_list_iter conn_iter; 1272 char aux_name[48] = {0}; 1273 int index = dcbe->connector; 1274 int type, ret = 0; 1275 bool dummy; 1276 1277 drm_connector_list_iter_begin(dev, &conn_iter); 1278 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) { 1279 nv_connector = nouveau_connector(connector); 1280 if (nv_connector->index == index) { 1281 drm_connector_list_iter_end(&conn_iter); 1282 return connector; 1283 } 1284 } 1285 drm_connector_list_iter_end(&conn_iter); 1286 1287 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL); 1288 if (!nv_connector) 1289 return ERR_PTR(-ENOMEM); 1290 1291 connector = &nv_connector->base; 1292 nv_connector->index = index; 1293 1294 /* attempt to parse vbios connector type and hotplug gpio */ 1295 nv_connector->dcb = olddcb_conn(dev, index); 1296 if (nv_connector->dcb) { 1297 u32 entry = ROM16(nv_connector->dcb[0]); 1298 if (olddcb_conntab(dev)[3] >= 4) 1299 entry |= (u32)ROM16(nv_connector->dcb[2]) << 16; 1300 1301 nv_connector->type = nv_connector->dcb[0]; 1302 if (drm_conntype_from_dcb(nv_connector->type) == 1303 DRM_MODE_CONNECTOR_Unknown) { 1304 NV_WARN(drm, "unknown connector type %02x\n", 1305 nv_connector->type); 1306 nv_connector->type = DCB_CONNECTOR_NONE; 1307 } 1308 1309 /* Gigabyte NX85T */ 1310 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) { 1311 if (nv_connector->type == DCB_CONNECTOR_HDMI_1) 1312 nv_connector->type = DCB_CONNECTOR_DVI_I; 1313 } 1314 1315 /* Gigabyte GV-NX86T512H */ 1316 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) { 1317 if (nv_connector->type == DCB_CONNECTOR_HDMI_1) 1318 nv_connector->type = DCB_CONNECTOR_DVI_I; 1319 } 1320 } else { 1321 nv_connector->type = DCB_CONNECTOR_NONE; 1322 } 1323 1324 /* no vbios data, or an unknown dcb connector type - attempt to 1325 * figure out something suitable ourselves 1326 */ 1327 if (nv_connector->type == DCB_CONNECTOR_NONE) { 1328 struct nouveau_drm *drm = nouveau_drm(dev); 1329 struct dcb_table *dcbt = &drm->vbios.dcb; 1330 u32 encoders = 0; 1331 int i; 1332 1333 for (i = 0; i < dcbt->entries; i++) { 1334 if (dcbt->entry[i].connector == nv_connector->index) 1335 encoders |= (1 << dcbt->entry[i].type); 1336 } 1337 1338 if (encoders & (1 << DCB_OUTPUT_DP)) { 1339 if (encoders & (1 << DCB_OUTPUT_TMDS)) 1340 nv_connector->type = DCB_CONNECTOR_DP; 1341 else 1342 nv_connector->type = DCB_CONNECTOR_eDP; 1343 } else 1344 if (encoders & (1 << DCB_OUTPUT_TMDS)) { 1345 if (encoders & (1 << DCB_OUTPUT_ANALOG)) 1346 nv_connector->type = DCB_CONNECTOR_DVI_I; 1347 else 1348 nv_connector->type = DCB_CONNECTOR_DVI_D; 1349 } else 1350 if (encoders & (1 << DCB_OUTPUT_ANALOG)) { 1351 nv_connector->type = DCB_CONNECTOR_VGA; 1352 } else 1353 if (encoders & (1 << DCB_OUTPUT_LVDS)) { 1354 nv_connector->type = DCB_CONNECTOR_LVDS; 1355 } else 1356 if (encoders & (1 << DCB_OUTPUT_TV)) { 1357 nv_connector->type = DCB_CONNECTOR_TV_0; 1358 } 1359 } 1360 1361 switch ((type = drm_conntype_from_dcb(nv_connector->type))) { 1362 case DRM_MODE_CONNECTOR_LVDS: 1363 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy); 1364 if (ret) { 1365 NV_ERROR(drm, "Error parsing LVDS table, disabling\n"); 1366 kfree(nv_connector); 1367 return ERR_PTR(ret); 1368 } 1369 1370 funcs = &nouveau_connector_funcs_lvds; 1371 break; 1372 case DRM_MODE_CONNECTOR_DisplayPort: 1373 case DRM_MODE_CONNECTOR_eDP: 1374 nv_connector->aux.dev = connector->kdev; 1375 nv_connector->aux.drm_dev = dev; 1376 nv_connector->aux.transfer = nouveau_connector_aux_xfer; 1377 snprintf(aux_name, sizeof(aux_name), "sor-%04x-%04x", 1378 dcbe->hasht, dcbe->hashm); 1379 nv_connector->aux.name = kstrdup(aux_name, GFP_KERNEL); 1380 if (!nv_connector->aux.name) { 1381 kfree(nv_connector); 1382 return ERR_PTR(-ENOMEM); 1383 } 1384 drm_dp_aux_init(&nv_connector->aux); 1385 break; 1386 default: 1387 funcs = &nouveau_connector_funcs; 1388 break; 1389 } 1390 1391 /* HDMI 3D support */ 1392 if ((disp->disp.object.oclass >= G82_DISP) 1393 && ((type == DRM_MODE_CONNECTOR_DisplayPort) 1394 || (type == DRM_MODE_CONNECTOR_eDP) 1395 || (type == DRM_MODE_CONNECTOR_HDMIA))) 1396 connector->stereo_allowed = true; 1397 1398 /* defaults, will get overridden in detect() */ 1399 connector->interlace_allowed = false; 1400 connector->doublescan_allowed = false; 1401 1402 drm_connector_init(dev, connector, funcs, type); 1403 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs); 1404 1405 if (nv_connector->dcb && (disp->disp.conn_mask & BIT(nv_connector->index))) { 1406 ret = nvif_conn_ctor(&disp->disp, nv_connector->base.name, nv_connector->index, 1407 &nv_connector->conn); 1408 if (ret) { 1409 kfree(nv_connector); 1410 return ERR_PTR(ret); 1411 } 1412 } 1413 1414 connector->funcs->reset(connector); 1415 nouveau_conn_attach_properties(connector); 1416 1417 /* Default scaling mode */ 1418 switch (nv_connector->type) { 1419 case DCB_CONNECTOR_LVDS: 1420 case DCB_CONNECTOR_LVDS_SPWG: 1421 case DCB_CONNECTOR_eDP: 1422 /* see note in nouveau_connector_set_property() */ 1423 if (disp->disp.object.oclass < NV50_DISP) { 1424 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN; 1425 break; 1426 } 1427 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE; 1428 break; 1429 default: 1430 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE; 1431 break; 1432 } 1433 1434 /* dithering properties */ 1435 switch (nv_connector->type) { 1436 case DCB_CONNECTOR_TV_0: 1437 case DCB_CONNECTOR_TV_1: 1438 case DCB_CONNECTOR_TV_3: 1439 case DCB_CONNECTOR_VGA: 1440 break; 1441 default: 1442 nv_connector->dithering_mode = DITHERING_MODE_AUTO; 1443 break; 1444 } 1445 1446 switch (type) { 1447 case DRM_MODE_CONNECTOR_DisplayPort: 1448 nv_connector->dp_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP); 1449 fallthrough; 1450 case DRM_MODE_CONNECTOR_eDP: 1451 drm_dp_cec_register_connector(&nv_connector->aux, connector); 1452 break; 1453 } 1454 1455 ret = nvif_notify_ctor(&disp->disp.object, "kmsHotplug", 1456 nouveau_connector_hotplug, 1457 true, NV04_DISP_NTFY_CONN, 1458 &(struct nvif_notify_conn_req_v0) { 1459 .mask = NVIF_NOTIFY_CONN_V0_ANY, 1460 .conn = index, 1461 }, 1462 sizeof(struct nvif_notify_conn_req_v0), 1463 sizeof(struct nvif_notify_conn_rep_v0), 1464 &nv_connector->hpd); 1465 if (ret) 1466 connector->polled = DRM_CONNECTOR_POLL_CONNECT; 1467 else 1468 connector->polled = DRM_CONNECTOR_POLL_HPD; 1469 1470 drm_connector_register(connector); 1471 return connector; 1472 } 1473