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(sizeof(*asyc), GFP_KERNEL))) 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(sizeof(*asyc), GFP_KERNEL)))) 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 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; 622 623 if (nv_encoder->dcb->type == DCB_OUTPUT_DP) 624 drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid); 625 626 goto out; 627 } else { 628 nouveau_connector_set_edid(nv_connector, NULL); 629 } 630 631 nv_encoder = nouveau_connector_of_detect(connector); 632 if (nv_encoder) { 633 nouveau_connector_set_encoder(connector, nv_encoder); 634 conn_status = connector_status_connected; 635 goto out; 636 } 637 638 detect_analog: 639 nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG); 640 if (!nv_encoder && !nouveau_tv_disable) 641 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV); 642 if (nv_encoder && force) { 643 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 644 const struct drm_encoder_helper_funcs *helper = 645 encoder->helper_private; 646 647 if (helper->detect(encoder, connector) == 648 connector_status_connected) { 649 nouveau_connector_set_encoder(connector, nv_encoder); 650 conn_status = connector_status_connected; 651 goto out; 652 } 653 } 654 655 out: 656 if (!nv_connector->edid) 657 drm_dp_cec_unset_edid(&nv_connector->aux); 658 659 pm_runtime_mark_last_busy(dev->dev); 660 pm_runtime_put_autosuspend(dev->dev); 661 662 return conn_status; 663 } 664 665 static enum drm_connector_status 666 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force) 667 { 668 struct drm_device *dev = connector->dev; 669 struct nouveau_drm *drm = nouveau_drm(dev); 670 struct nouveau_connector *nv_connector = nouveau_connector(connector); 671 struct nouveau_encoder *nv_encoder = NULL; 672 struct edid *edid = NULL; 673 enum drm_connector_status status = connector_status_disconnected; 674 675 nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS); 676 if (!nv_encoder) 677 goto out; 678 679 /* Try retrieving EDID via DDC */ 680 if (!drm->vbios.fp_no_ddc) { 681 status = nouveau_connector_detect(connector, force); 682 if (status == connector_status_connected) { 683 edid = nv_connector->edid; 684 goto out; 685 } 686 } 687 688 /* On some laptops (Sony, i'm looking at you) there appears to 689 * be no direct way of accessing the panel's EDID. The only 690 * option available to us appears to be to ask ACPI for help.. 691 * 692 * It's important this check's before trying straps, one of the 693 * said manufacturer's laptops are configured in such a way 694 * the nouveau decides an entry in the VBIOS FP mode table is 695 * valid - it's not (rh#613284) 696 */ 697 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) { 698 edid = nouveau_acpi_edid(dev, connector); 699 if (edid) { 700 status = connector_status_connected; 701 goto out; 702 } 703 } 704 705 /* If no EDID found above, and the VBIOS indicates a hardcoded 706 * modeline is avalilable for the panel, set it as the panel's 707 * native mode and exit. 708 */ 709 if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc || 710 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) { 711 status = connector_status_connected; 712 goto out; 713 } 714 715 /* Still nothing, some VBIOS images have a hardcoded EDID block 716 * stored for the panel stored in them. 717 */ 718 if (!drm->vbios.fp_no_ddc) { 719 edid = (struct edid *)nouveau_bios_embedded_edid(dev); 720 if (edid) { 721 edid = kmemdup(edid, EDID_LENGTH, GFP_KERNEL); 722 if (edid) 723 status = connector_status_connected; 724 } 725 } 726 727 out: 728 #if defined(CONFIG_ACPI_BUTTON) || \ 729 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE)) 730 if (status == connector_status_connected && 731 !nouveau_ignorelid && !acpi_lid_open()) 732 status = connector_status_unknown; 733 #endif 734 735 nouveau_connector_set_edid(nv_connector, edid); 736 if (nv_encoder) 737 nouveau_connector_set_encoder(connector, nv_encoder); 738 return status; 739 } 740 741 static void 742 nouveau_connector_force(struct drm_connector *connector) 743 { 744 struct nouveau_drm *drm = nouveau_drm(connector->dev); 745 struct nouveau_connector *nv_connector = nouveau_connector(connector); 746 struct nouveau_encoder *nv_encoder; 747 int type; 748 749 if (nv_connector->type == DCB_CONNECTOR_DVI_I) { 750 if (connector->force == DRM_FORCE_ON_DIGITAL) 751 type = DCB_OUTPUT_TMDS; 752 else 753 type = DCB_OUTPUT_ANALOG; 754 } else 755 type = DCB_OUTPUT_ANY; 756 757 nv_encoder = find_encoder(connector, type); 758 if (!nv_encoder) { 759 NV_ERROR(drm, "can't find encoder to force %s on!\n", 760 connector->name); 761 connector->status = connector_status_disconnected; 762 return; 763 } 764 765 nouveau_connector_set_encoder(connector, nv_encoder); 766 } 767 768 static int 769 nouveau_connector_set_property(struct drm_connector *connector, 770 struct drm_property *property, uint64_t value) 771 { 772 struct nouveau_connector *nv_connector = nouveau_connector(connector); 773 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 774 struct nouveau_conn_atom *asyc = &nv_connector->properties_state; 775 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 776 int ret; 777 778 ret = connector->funcs->atomic_set_property(&nv_connector->base, 779 &asyc->state, 780 property, value); 781 if (ret) { 782 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV) 783 return get_slave_funcs(encoder)->set_property( 784 encoder, connector, property, value); 785 return ret; 786 } 787 788 nv_connector->scaling_mode = asyc->scaler.mode; 789 nv_connector->dithering_mode = asyc->dither.mode; 790 791 if (connector->encoder && connector->encoder->crtc) { 792 ret = drm_crtc_helper_set_mode(connector->encoder->crtc, 793 &connector->encoder->crtc->mode, 794 connector->encoder->crtc->x, 795 connector->encoder->crtc->y, 796 NULL); 797 if (!ret) 798 return -EINVAL; 799 } 800 801 return 0; 802 } 803 804 struct moderec { 805 int hdisplay; 806 int vdisplay; 807 }; 808 809 static struct moderec scaler_modes[] = { 810 { 1920, 1200 }, 811 { 1920, 1080 }, 812 { 1680, 1050 }, 813 { 1600, 1200 }, 814 { 1400, 1050 }, 815 { 1280, 1024 }, 816 { 1280, 960 }, 817 { 1152, 864 }, 818 { 1024, 768 }, 819 { 800, 600 }, 820 { 720, 400 }, 821 { 640, 480 }, 822 { 640, 400 }, 823 { 640, 350 }, 824 {} 825 }; 826 827 static int 828 nouveau_connector_scaler_modes_add(struct drm_connector *connector) 829 { 830 struct nouveau_connector *nv_connector = nouveau_connector(connector); 831 struct drm_display_mode *native = nv_connector->native_mode, *m; 832 struct drm_device *dev = connector->dev; 833 struct moderec *mode = &scaler_modes[0]; 834 int modes = 0; 835 836 if (!native) 837 return 0; 838 839 while (mode->hdisplay) { 840 if (mode->hdisplay <= native->hdisplay && 841 mode->vdisplay <= native->vdisplay && 842 (mode->hdisplay != native->hdisplay || 843 mode->vdisplay != native->vdisplay)) { 844 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay, 845 drm_mode_vrefresh(native), false, 846 false, false); 847 if (!m) 848 continue; 849 850 drm_mode_probed_add(connector, m); 851 modes++; 852 } 853 854 mode++; 855 } 856 857 return modes; 858 } 859 860 static void 861 nouveau_connector_detect_depth(struct drm_connector *connector) 862 { 863 struct nouveau_drm *drm = nouveau_drm(connector->dev); 864 struct nouveau_connector *nv_connector = nouveau_connector(connector); 865 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 866 struct nvbios *bios = &drm->vbios; 867 struct drm_display_mode *mode = nv_connector->native_mode; 868 bool duallink; 869 870 /* if the edid is feeling nice enough to provide this info, use it */ 871 if (nv_connector->edid && connector->display_info.bpc) 872 return; 873 874 /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */ 875 if (nv_connector->type == DCB_CONNECTOR_eDP) { 876 connector->display_info.bpc = 6; 877 return; 878 } 879 880 /* we're out of options unless we're LVDS, default to 8bpc */ 881 if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) { 882 connector->display_info.bpc = 8; 883 return; 884 } 885 886 connector->display_info.bpc = 6; 887 888 /* LVDS: panel straps */ 889 if (bios->fp_no_ddc) { 890 if (bios->fp.if_is_24bit) 891 connector->display_info.bpc = 8; 892 return; 893 } 894 895 /* LVDS: DDC panel, need to first determine the number of links to 896 * know which if_is_24bit flag to check... 897 */ 898 if (nv_connector->edid && 899 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG) 900 duallink = ((u8 *)nv_connector->edid)[121] == 2; 901 else 902 duallink = mode->clock >= bios->fp.duallink_transition_clk; 903 904 if ((!duallink && (bios->fp.strapless_is_24bit & 1)) || 905 ( duallink && (bios->fp.strapless_is_24bit & 2))) 906 connector->display_info.bpc = 8; 907 } 908 909 static int 910 nouveau_connector_late_register(struct drm_connector *connector) 911 { 912 int ret; 913 914 ret = nouveau_backlight_init(connector); 915 if (ret) 916 return ret; 917 918 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP || 919 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) { 920 ret = drm_dp_aux_register(&nouveau_connector(connector)->aux); 921 if (ret) 922 goto backlight_fini; 923 } 924 925 return 0; 926 backlight_fini: 927 nouveau_backlight_fini(connector); 928 return ret; 929 } 930 931 static void 932 nouveau_connector_early_unregister(struct drm_connector *connector) 933 { 934 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP || 935 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) 936 drm_dp_aux_unregister(&nouveau_connector(connector)->aux); 937 938 nouveau_backlight_fini(connector); 939 } 940 941 static int 942 nouveau_connector_get_modes(struct drm_connector *connector) 943 { 944 struct drm_device *dev = connector->dev; 945 struct nouveau_drm *drm = nouveau_drm(dev); 946 struct nouveau_connector *nv_connector = nouveau_connector(connector); 947 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 948 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 949 int ret = 0; 950 951 /* destroy the native mode, the attached monitor could have changed. 952 */ 953 if (nv_connector->native_mode) { 954 drm_mode_destroy(dev, nv_connector->native_mode); 955 nv_connector->native_mode = NULL; 956 } 957 958 if (nv_connector->edid) 959 ret = drm_add_edid_modes(connector, nv_connector->edid); 960 else 961 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS && 962 (nv_encoder->dcb->lvdsconf.use_straps_for_mode || 963 drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) { 964 struct drm_display_mode mode; 965 966 nouveau_bios_fp_mode(dev, &mode); 967 nv_connector->native_mode = drm_mode_duplicate(dev, &mode); 968 } 969 970 /* Determine display colour depth for everything except LVDS now, 971 * DP requires this before mode_valid() is called. 972 */ 973 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS) 974 nouveau_connector_detect_depth(connector); 975 976 /* Find the native mode if this is a digital panel, if we didn't 977 * find any modes through DDC previously add the native mode to 978 * the list of modes. 979 */ 980 if (!nv_connector->native_mode) 981 nv_connector->native_mode = nouveau_conn_native_mode(connector); 982 if (ret == 0 && nv_connector->native_mode) { 983 struct drm_display_mode *mode; 984 985 mode = drm_mode_duplicate(dev, nv_connector->native_mode); 986 drm_mode_probed_add(connector, mode); 987 ret = 1; 988 } 989 990 /* Determine LVDS colour depth, must happen after determining 991 * "native" mode as some VBIOS tables require us to use the 992 * pixel clock as part of the lookup... 993 */ 994 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS && nv_connector->native_mode) 995 nouveau_connector_detect_depth(connector); 996 997 if (nv_encoder->dcb->type == DCB_OUTPUT_TV) 998 ret = get_slave_funcs(encoder)->get_modes(encoder, connector); 999 1000 if (nv_connector->type == DCB_CONNECTOR_LVDS || 1001 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG || 1002 nv_connector->type == DCB_CONNECTOR_eDP) 1003 ret += nouveau_connector_scaler_modes_add(connector); 1004 1005 return ret; 1006 } 1007 1008 static unsigned 1009 get_tmds_link_bandwidth(struct drm_connector *connector) 1010 { 1011 struct nouveau_connector *nv_connector = nouveau_connector(connector); 1012 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 1013 struct nouveau_drm *drm = nouveau_drm(connector->dev); 1014 struct dcb_output *dcb = nv_connector->detected_encoder->dcb; 1015 struct drm_display_info *info = NULL; 1016 unsigned duallink_scale = 1017 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1; 1018 1019 if (drm_detect_hdmi_monitor(nv_connector->edid)) { 1020 info = &nv_connector->base.display_info; 1021 duallink_scale = 1; 1022 } 1023 1024 if (info) { 1025 if (nouveau_hdmimhz > 0) 1026 return nouveau_hdmimhz * 1000; 1027 /* Note: these limits are conservative, some Fermi's 1028 * can do 297 MHz. Unclear how this can be determined. 1029 */ 1030 if (drm->client.device.info.chipset >= 0x120) { 1031 const int max_tmds_clock = 1032 info->hdmi.scdc.scrambling.supported ? 1033 594000 : 340000; 1034 return info->max_tmds_clock ? 1035 min(info->max_tmds_clock, max_tmds_clock) : 1036 max_tmds_clock; 1037 } 1038 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER) 1039 return 297000; 1040 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI) 1041 return 225000; 1042 } 1043 1044 if (dcb->location != DCB_LOC_ON_CHIP || 1045 drm->client.device.info.chipset >= 0x46) 1046 return 165000 * duallink_scale; 1047 else if (drm->client.device.info.chipset >= 0x40) 1048 return 155000 * duallink_scale; 1049 else if (drm->client.device.info.chipset >= 0x18) 1050 return 135000 * duallink_scale; 1051 else 1052 return 112000 * duallink_scale; 1053 } 1054 1055 static enum drm_mode_status 1056 nouveau_connector_mode_valid(struct drm_connector *connector, 1057 struct drm_display_mode *mode) 1058 { 1059 struct nouveau_connector *nv_connector = nouveau_connector(connector); 1060 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 1061 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 1062 unsigned int min_clock = 25000, max_clock = min_clock, clock = mode->clock; 1063 1064 switch (nv_encoder->dcb->type) { 1065 case DCB_OUTPUT_LVDS: 1066 if (nv_connector->native_mode && 1067 (mode->hdisplay > nv_connector->native_mode->hdisplay || 1068 mode->vdisplay > nv_connector->native_mode->vdisplay)) 1069 return MODE_PANEL; 1070 1071 min_clock = 0; 1072 max_clock = 400000; 1073 break; 1074 case DCB_OUTPUT_TMDS: 1075 max_clock = get_tmds_link_bandwidth(connector); 1076 break; 1077 case DCB_OUTPUT_ANALOG: 1078 max_clock = nv_encoder->dcb->crtconf.maxfreq; 1079 if (!max_clock) 1080 max_clock = 350000; 1081 break; 1082 case DCB_OUTPUT_TV: 1083 return get_slave_funcs(encoder)->mode_valid(encoder, mode); 1084 case DCB_OUTPUT_DP: 1085 return nv50_dp_mode_valid(nv_encoder, mode, NULL); 1086 default: 1087 BUG(); 1088 return MODE_BAD; 1089 } 1090 1091 if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING) 1092 clock *= 2; 1093 1094 if (clock < min_clock) 1095 return MODE_CLOCK_LOW; 1096 if (clock > max_clock) 1097 return MODE_CLOCK_HIGH; 1098 1099 return MODE_OK; 1100 } 1101 1102 static struct drm_encoder * 1103 nouveau_connector_best_encoder(struct drm_connector *connector) 1104 { 1105 struct nouveau_connector *nv_connector = nouveau_connector(connector); 1106 1107 if (nv_connector->detected_encoder) 1108 return to_drm_encoder(nv_connector->detected_encoder); 1109 1110 return NULL; 1111 } 1112 1113 static int 1114 nouveau_connector_atomic_check(struct drm_connector *connector, struct drm_atomic_state *state) 1115 { 1116 struct nouveau_connector *nv_conn = nouveau_connector(connector); 1117 struct drm_connector_state *conn_state = 1118 drm_atomic_get_new_connector_state(state, connector); 1119 1120 if (!nv_conn->dp_encoder || !nv50_has_mst(nouveau_drm(connector->dev))) 1121 return 0; 1122 1123 return drm_dp_mst_root_conn_atomic_check(conn_state, &nv_conn->dp_encoder->dp.mstm->mgr); 1124 } 1125 1126 static const struct drm_connector_helper_funcs 1127 nouveau_connector_helper_funcs = { 1128 .get_modes = nouveau_connector_get_modes, 1129 .mode_valid = nouveau_connector_mode_valid, 1130 .best_encoder = nouveau_connector_best_encoder, 1131 .atomic_check = nouveau_connector_atomic_check, 1132 }; 1133 1134 static const struct drm_connector_funcs 1135 nouveau_connector_funcs = { 1136 .dpms = drm_helper_connector_dpms, 1137 .reset = nouveau_conn_reset, 1138 .detect = nouveau_connector_detect, 1139 .force = nouveau_connector_force, 1140 .fill_modes = drm_helper_probe_single_connector_modes, 1141 .set_property = nouveau_connector_set_property, 1142 .destroy = nouveau_connector_destroy, 1143 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state, 1144 .atomic_destroy_state = nouveau_conn_atomic_destroy_state, 1145 .atomic_set_property = nouveau_conn_atomic_set_property, 1146 .atomic_get_property = nouveau_conn_atomic_get_property, 1147 .late_register = nouveau_connector_late_register, 1148 .early_unregister = nouveau_connector_early_unregister, 1149 }; 1150 1151 static const struct drm_connector_funcs 1152 nouveau_connector_funcs_lvds = { 1153 .dpms = drm_helper_connector_dpms, 1154 .reset = nouveau_conn_reset, 1155 .detect = nouveau_connector_detect_lvds, 1156 .force = nouveau_connector_force, 1157 .fill_modes = drm_helper_probe_single_connector_modes, 1158 .set_property = nouveau_connector_set_property, 1159 .destroy = nouveau_connector_destroy, 1160 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state, 1161 .atomic_destroy_state = nouveau_conn_atomic_destroy_state, 1162 .atomic_set_property = nouveau_conn_atomic_set_property, 1163 .atomic_get_property = nouveau_conn_atomic_get_property, 1164 .late_register = nouveau_connector_late_register, 1165 .early_unregister = nouveau_connector_early_unregister, 1166 }; 1167 1168 void 1169 nouveau_connector_hpd(struct nouveau_connector *nv_connector, u64 bits) 1170 { 1171 struct nouveau_drm *drm = nouveau_drm(nv_connector->base.dev); 1172 u32 mask = drm_connector_mask(&nv_connector->base); 1173 unsigned long flags; 1174 1175 spin_lock_irqsave(&drm->hpd_lock, flags); 1176 if (!(drm->hpd_pending & mask)) { 1177 nv_connector->hpd_pending |= bits; 1178 drm->hpd_pending |= mask; 1179 schedule_work(&drm->hpd_work); 1180 } 1181 spin_unlock_irqrestore(&drm->hpd_lock, flags); 1182 } 1183 1184 static int 1185 nouveau_connector_irq(struct nvif_event *event, void *repv, u32 repc) 1186 { 1187 struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), irq); 1188 1189 schedule_work(&nv_connector->irq_work); 1190 return NVIF_EVENT_KEEP; 1191 } 1192 1193 static int 1194 nouveau_connector_hotplug(struct nvif_event *event, void *repv, u32 repc) 1195 { 1196 struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), hpd); 1197 struct nvif_conn_event_v0 *rep = repv; 1198 1199 nouveau_connector_hpd(nv_connector, rep->types); 1200 return NVIF_EVENT_KEEP; 1201 } 1202 1203 static ssize_t 1204 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg) 1205 { 1206 struct nouveau_connector *nv_connector = 1207 container_of(obj, typeof(*nv_connector), aux); 1208 struct nouveau_encoder *nv_encoder; 1209 struct nvkm_i2c_aux *aux; 1210 u8 size = msg->size; 1211 int ret; 1212 1213 nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP); 1214 if (!nv_encoder || !(aux = nv_encoder->aux)) 1215 return -ENODEV; 1216 if (WARN_ON(msg->size > 16)) 1217 return -E2BIG; 1218 1219 ret = nvkm_i2c_aux_acquire(aux); 1220 if (ret) 1221 return ret; 1222 1223 ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address, 1224 msg->buffer, &size); 1225 nvkm_i2c_aux_release(aux); 1226 if (ret >= 0) { 1227 msg->reply = ret; 1228 return size; 1229 } 1230 1231 return ret; 1232 } 1233 1234 static int 1235 drm_conntype_from_dcb(enum dcb_connector_type dcb) 1236 { 1237 switch (dcb) { 1238 case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA; 1239 case DCB_CONNECTOR_TV_0 : 1240 case DCB_CONNECTOR_TV_1 : 1241 case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV; 1242 case DCB_CONNECTOR_DMS59_0 : 1243 case DCB_CONNECTOR_DMS59_1 : 1244 case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII; 1245 case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID; 1246 case DCB_CONNECTOR_LVDS : 1247 case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS; 1248 case DCB_CONNECTOR_DMS59_DP0: 1249 case DCB_CONNECTOR_DMS59_DP1: 1250 case DCB_CONNECTOR_DP : 1251 case DCB_CONNECTOR_mDP : 1252 case DCB_CONNECTOR_USB_C : return DRM_MODE_CONNECTOR_DisplayPort; 1253 case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP; 1254 case DCB_CONNECTOR_HDMI_0 : 1255 case DCB_CONNECTOR_HDMI_1 : 1256 case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA; 1257 case DCB_CONNECTOR_WFD : return DRM_MODE_CONNECTOR_VIRTUAL; 1258 default: 1259 break; 1260 } 1261 1262 return DRM_MODE_CONNECTOR_Unknown; 1263 } 1264 1265 struct drm_connector * 1266 nouveau_connector_create(struct drm_device *dev, 1267 const struct dcb_output *dcbe) 1268 { 1269 const struct drm_connector_funcs *funcs = &nouveau_connector_funcs; 1270 struct nouveau_drm *drm = nouveau_drm(dev); 1271 struct nouveau_display *disp = nouveau_display(dev); 1272 struct nouveau_connector *nv_connector = NULL; 1273 struct drm_connector *connector; 1274 struct drm_connector_list_iter conn_iter; 1275 char aux_name[48] = {0}; 1276 int index = dcbe->connector; 1277 int type, ret = 0; 1278 bool dummy; 1279 1280 drm_connector_list_iter_begin(dev, &conn_iter); 1281 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) { 1282 nv_connector = nouveau_connector(connector); 1283 if (nv_connector->index == index) { 1284 drm_connector_list_iter_end(&conn_iter); 1285 return connector; 1286 } 1287 } 1288 drm_connector_list_iter_end(&conn_iter); 1289 1290 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL); 1291 if (!nv_connector) 1292 return ERR_PTR(-ENOMEM); 1293 1294 connector = &nv_connector->base; 1295 nv_connector->index = index; 1296 INIT_WORK(&nv_connector->irq_work, nouveau_dp_irq); 1297 1298 /* attempt to parse vbios connector type and hotplug gpio */ 1299 nv_connector->dcb = olddcb_conn(dev, index); 1300 if (nv_connector->dcb) { 1301 u32 entry = ROM16(nv_connector->dcb[0]); 1302 if (olddcb_conntab(dev)[3] >= 4) 1303 entry |= (u32)ROM16(nv_connector->dcb[2]) << 16; 1304 1305 nv_connector->type = nv_connector->dcb[0]; 1306 if (drm_conntype_from_dcb(nv_connector->type) == 1307 DRM_MODE_CONNECTOR_Unknown) { 1308 NV_WARN(drm, "unknown connector type %02x\n", 1309 nv_connector->type); 1310 nv_connector->type = DCB_CONNECTOR_NONE; 1311 } 1312 1313 /* Gigabyte NX85T */ 1314 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) { 1315 if (nv_connector->type == DCB_CONNECTOR_HDMI_1) 1316 nv_connector->type = DCB_CONNECTOR_DVI_I; 1317 } 1318 1319 /* Gigabyte GV-NX86T512H */ 1320 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) { 1321 if (nv_connector->type == DCB_CONNECTOR_HDMI_1) 1322 nv_connector->type = DCB_CONNECTOR_DVI_I; 1323 } 1324 } else { 1325 nv_connector->type = DCB_CONNECTOR_NONE; 1326 } 1327 1328 /* no vbios data, or an unknown dcb connector type - attempt to 1329 * figure out something suitable ourselves 1330 */ 1331 if (nv_connector->type == DCB_CONNECTOR_NONE) { 1332 struct nouveau_drm *drm = nouveau_drm(dev); 1333 struct dcb_table *dcbt = &drm->vbios.dcb; 1334 u32 encoders = 0; 1335 int i; 1336 1337 for (i = 0; i < dcbt->entries; i++) { 1338 if (dcbt->entry[i].connector == nv_connector->index) 1339 encoders |= (1 << dcbt->entry[i].type); 1340 } 1341 1342 if (encoders & (1 << DCB_OUTPUT_DP)) { 1343 if (encoders & (1 << DCB_OUTPUT_TMDS)) 1344 nv_connector->type = DCB_CONNECTOR_DP; 1345 else 1346 nv_connector->type = DCB_CONNECTOR_eDP; 1347 } else 1348 if (encoders & (1 << DCB_OUTPUT_TMDS)) { 1349 if (encoders & (1 << DCB_OUTPUT_ANALOG)) 1350 nv_connector->type = DCB_CONNECTOR_DVI_I; 1351 else 1352 nv_connector->type = DCB_CONNECTOR_DVI_D; 1353 } else 1354 if (encoders & (1 << DCB_OUTPUT_ANALOG)) { 1355 nv_connector->type = DCB_CONNECTOR_VGA; 1356 } else 1357 if (encoders & (1 << DCB_OUTPUT_LVDS)) { 1358 nv_connector->type = DCB_CONNECTOR_LVDS; 1359 } else 1360 if (encoders & (1 << DCB_OUTPUT_TV)) { 1361 nv_connector->type = DCB_CONNECTOR_TV_0; 1362 } 1363 } 1364 1365 switch ((type = drm_conntype_from_dcb(nv_connector->type))) { 1366 case DRM_MODE_CONNECTOR_LVDS: 1367 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy); 1368 if (ret) { 1369 NV_ERROR(drm, "Error parsing LVDS table, disabling\n"); 1370 kfree(nv_connector); 1371 return ERR_PTR(ret); 1372 } 1373 1374 funcs = &nouveau_connector_funcs_lvds; 1375 break; 1376 case DRM_MODE_CONNECTOR_DisplayPort: 1377 case DRM_MODE_CONNECTOR_eDP: 1378 nv_connector->aux.dev = connector->kdev; 1379 nv_connector->aux.drm_dev = dev; 1380 nv_connector->aux.transfer = nouveau_connector_aux_xfer; 1381 snprintf(aux_name, sizeof(aux_name), "sor-%04x-%04x", 1382 dcbe->hasht, dcbe->hashm); 1383 nv_connector->aux.name = kstrdup(aux_name, GFP_KERNEL); 1384 if (!nv_connector->aux.name) { 1385 kfree(nv_connector); 1386 return ERR_PTR(-ENOMEM); 1387 } 1388 drm_dp_aux_init(&nv_connector->aux); 1389 break; 1390 default: 1391 funcs = &nouveau_connector_funcs; 1392 break; 1393 } 1394 1395 /* HDMI 3D support */ 1396 if ((disp->disp.object.oclass >= G82_DISP) 1397 && ((type == DRM_MODE_CONNECTOR_DisplayPort) 1398 || (type == DRM_MODE_CONNECTOR_eDP) 1399 || (type == DRM_MODE_CONNECTOR_HDMIA))) 1400 connector->stereo_allowed = true; 1401 1402 /* defaults, will get overridden in detect() */ 1403 connector->interlace_allowed = false; 1404 connector->doublescan_allowed = false; 1405 1406 drm_connector_init(dev, connector, funcs, type); 1407 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs); 1408 connector->polled = DRM_CONNECTOR_POLL_CONNECT; 1409 1410 if (nv_connector->dcb && (disp->disp.conn_mask & BIT(nv_connector->index))) { 1411 ret = nvif_conn_ctor(&disp->disp, nv_connector->base.name, nv_connector->index, 1412 &nv_connector->conn); 1413 if (ret) { 1414 goto drm_conn_err; 1415 } 1416 1417 ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsHotplug", 1418 nouveau_connector_hotplug, 1419 NVIF_CONN_EVENT_V0_PLUG | NVIF_CONN_EVENT_V0_UNPLUG, 1420 &nv_connector->hpd); 1421 if (ret == 0) 1422 connector->polled = DRM_CONNECTOR_POLL_HPD; 1423 1424 if (nv_connector->aux.transfer) { 1425 ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsDpIrq", 1426 nouveau_connector_irq, NVIF_CONN_EVENT_V0_IRQ, 1427 &nv_connector->irq); 1428 if (ret) { 1429 nvif_event_dtor(&nv_connector->hpd); 1430 nvif_conn_dtor(&nv_connector->conn); 1431 goto drm_conn_err; 1432 } 1433 } 1434 } 1435 1436 connector->funcs->reset(connector); 1437 nouveau_conn_attach_properties(connector); 1438 1439 /* Default scaling mode */ 1440 switch (nv_connector->type) { 1441 case DCB_CONNECTOR_LVDS: 1442 case DCB_CONNECTOR_LVDS_SPWG: 1443 case DCB_CONNECTOR_eDP: 1444 /* see note in nouveau_connector_set_property() */ 1445 if (disp->disp.object.oclass < NV50_DISP) { 1446 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN; 1447 break; 1448 } 1449 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE; 1450 break; 1451 default: 1452 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE; 1453 break; 1454 } 1455 1456 /* dithering properties */ 1457 switch (nv_connector->type) { 1458 case DCB_CONNECTOR_TV_0: 1459 case DCB_CONNECTOR_TV_1: 1460 case DCB_CONNECTOR_TV_3: 1461 case DCB_CONNECTOR_VGA: 1462 break; 1463 default: 1464 nv_connector->dithering_mode = DITHERING_MODE_AUTO; 1465 break; 1466 } 1467 1468 switch (type) { 1469 case DRM_MODE_CONNECTOR_DisplayPort: 1470 nv_connector->dp_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP); 1471 fallthrough; 1472 case DRM_MODE_CONNECTOR_eDP: 1473 drm_dp_cec_register_connector(&nv_connector->aux, connector); 1474 break; 1475 } 1476 1477 drm_connector_register(connector); 1478 return connector; 1479 1480 drm_conn_err: 1481 drm_connector_cleanup(connector); 1482 kfree(nv_connector); 1483 return ERR_PTR(ret); 1484 } 1485