1 /* $NetBSD: nouveau_connector.c,v 1.7 2021/12/19 10:49:21 riastradh Exp $ */ 2 3 /* 4 * Copyright (C) 2008 Maarten Maathuis. 5 * All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining 8 * a copy of this software and associated documentation files (the 9 * "Software"), to deal in the Software without restriction, including 10 * without limitation the rights to use, copy, modify, merge, publish, 11 * distribute, sublicense, and/or sell copies of the Software, and to 12 * permit persons to whom the Software is furnished to do so, subject to 13 * the following conditions: 14 * 15 * The above copyright notice and this permission notice (including the 16 * next paragraph) shall be included in all copies or substantial 17 * portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 22 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26 * 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: nouveau_connector.c,v 1.7 2021/12/19 10:49:21 riastradh Exp $"); 31 32 #include <acpi/button.h> 33 34 #include <linux/pm_runtime.h> 35 #include <linux/vga_switcheroo.h> 36 37 #include <drm/drm_atomic_helper.h> 38 #include <drm/drm_edid.h> 39 #include <drm/drm_crtc_helper.h> 40 #include <drm/drm_probe_helper.h> 41 #include <drm/drm_atomic.h> 42 43 #include "nouveau_reg.h" 44 #include "nouveau_drv.h" 45 #include "dispnv04/hw.h" 46 #include "nouveau_acpi.h" 47 48 #include "nouveau_display.h" 49 #include "nouveau_connector.h" 50 #include "nouveau_encoder.h" 51 #include "nouveau_crtc.h" 52 53 #include <nvif/class.h> 54 #include <nvif/cl0046.h> 55 #include <nvif/event.h> 56 57 struct drm_display_mode * 58 nouveau_conn_native_mode(struct drm_connector *connector) 59 { 60 const struct drm_connector_helper_funcs *helper = connector->helper_private; 61 struct nouveau_drm *drm = nouveau_drm(connector->dev); 62 struct drm_device *dev = connector->dev; 63 struct drm_display_mode *mode, *largest = NULL; 64 int high_w = 0, high_h = 0, high_v = 0; 65 66 list_for_each_entry(mode, &connector->probed_modes, head) { 67 mode->vrefresh = drm_mode_vrefresh(mode); 68 if (helper->mode_valid(connector, mode) != MODE_OK || 69 (mode->flags & DRM_MODE_FLAG_INTERLACE)) 70 continue; 71 72 /* Use preferred mode if there is one.. */ 73 if (mode->type & DRM_MODE_TYPE_PREFERRED) { 74 NV_DEBUG(drm, "native mode from preferred\n"); 75 return drm_mode_duplicate(dev, mode); 76 } 77 78 /* Otherwise, take the resolution with the largest width, then 79 * height, then vertical refresh 80 */ 81 if (mode->hdisplay < high_w) 82 continue; 83 84 if (mode->hdisplay == high_w && mode->vdisplay < high_h) 85 continue; 86 87 if (mode->hdisplay == high_w && mode->vdisplay == high_h && 88 mode->vrefresh < high_v) 89 continue; 90 91 high_w = mode->hdisplay; 92 high_h = mode->vdisplay; 93 high_v = mode->vrefresh; 94 largest = mode; 95 } 96 97 NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n", 98 high_w, high_h, high_v); 99 return largest ? drm_mode_duplicate(dev, largest) : NULL; 100 } 101 102 int 103 nouveau_conn_atomic_get_property(struct drm_connector *connector, 104 const struct drm_connector_state *state, 105 struct drm_property *property, u64 *val) 106 { 107 const struct nouveau_conn_atom *asyc = nouveau_conn_atom_const(state); 108 struct nouveau_display *disp = nouveau_display(connector->dev); 109 struct drm_device *dev = connector->dev; 110 111 if (property == dev->mode_config.scaling_mode_property) 112 *val = asyc->scaler.mode; 113 else if (property == disp->underscan_property) 114 *val = asyc->scaler.underscan.mode; 115 else if (property == disp->underscan_hborder_property) 116 *val = asyc->scaler.underscan.hborder; 117 else if (property == disp->underscan_vborder_property) 118 *val = asyc->scaler.underscan.vborder; 119 else if (property == disp->dithering_mode) 120 *val = asyc->dither.mode; 121 else if (property == disp->dithering_depth) 122 *val = asyc->dither.depth; 123 else if (property == disp->vibrant_hue_property) 124 *val = asyc->procamp.vibrant_hue; 125 else if (property == disp->color_vibrance_property) 126 *val = asyc->procamp.color_vibrance; 127 else 128 return -EINVAL; 129 130 return 0; 131 } 132 133 int 134 nouveau_conn_atomic_set_property(struct drm_connector *connector, 135 struct drm_connector_state *state, 136 struct drm_property *property, u64 val) 137 { 138 struct drm_device *dev = connector->dev; 139 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state); 140 struct nouveau_display *disp = nouveau_display(dev); 141 142 if (property == dev->mode_config.scaling_mode_property) { 143 switch (val) { 144 case DRM_MODE_SCALE_NONE: 145 /* We allow 'None' for EDID modes, even on a fixed 146 * panel (some exist with support for lower refresh 147 * rates, which people might want to use for power- 148 * saving purposes). 149 * 150 * Non-EDID modes will force the use of GPU scaling 151 * to the native mode regardless of this setting. 152 */ 153 switch (connector->connector_type) { 154 case DRM_MODE_CONNECTOR_LVDS: 155 case DRM_MODE_CONNECTOR_eDP: 156 /* ... except prior to G80, where the code 157 * doesn't support such things. 158 */ 159 if (disp->disp.object.oclass < NV50_DISP) 160 return -EINVAL; 161 break; 162 default: 163 break; 164 } 165 case DRM_MODE_SCALE_FULLSCREEN: 166 case DRM_MODE_SCALE_CENTER: 167 case DRM_MODE_SCALE_ASPECT: 168 break; 169 default: 170 return -EINVAL; 171 } 172 173 if (asyc->scaler.mode != val) { 174 asyc->scaler.mode = val; 175 asyc->set.scaler = true; 176 } 177 } else 178 if (property == disp->underscan_property) { 179 if (asyc->scaler.underscan.mode != val) { 180 asyc->scaler.underscan.mode = val; 181 asyc->set.scaler = true; 182 } 183 } else 184 if (property == disp->underscan_hborder_property) { 185 if (asyc->scaler.underscan.hborder != val) { 186 asyc->scaler.underscan.hborder = val; 187 asyc->set.scaler = true; 188 } 189 } else 190 if (property == disp->underscan_vborder_property) { 191 if (asyc->scaler.underscan.vborder != val) { 192 asyc->scaler.underscan.vborder = val; 193 asyc->set.scaler = true; 194 } 195 } else 196 if (property == disp->dithering_mode) { 197 if (asyc->dither.mode != val) { 198 asyc->dither.mode = val; 199 asyc->set.dither = true; 200 } 201 } else 202 if (property == disp->dithering_depth) { 203 if (asyc->dither.mode != val) { 204 asyc->dither.depth = val; 205 asyc->set.dither = true; 206 } 207 } else 208 if (property == disp->vibrant_hue_property) { 209 if (asyc->procamp.vibrant_hue != val) { 210 asyc->procamp.vibrant_hue = val; 211 asyc->set.procamp = true; 212 } 213 } else 214 if (property == disp->color_vibrance_property) { 215 if (asyc->procamp.color_vibrance != val) { 216 asyc->procamp.color_vibrance = val; 217 asyc->set.procamp = true; 218 } 219 } else { 220 return -EINVAL; 221 } 222 223 return 0; 224 } 225 226 void 227 nouveau_conn_atomic_destroy_state(struct drm_connector *connector, 228 struct drm_connector_state *state) 229 { 230 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state); 231 __drm_atomic_helper_connector_destroy_state(&asyc->state); 232 kfree(asyc); 233 } 234 235 struct drm_connector_state * 236 nouveau_conn_atomic_duplicate_state(struct drm_connector *connector) 237 { 238 struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state); 239 struct nouveau_conn_atom *asyc; 240 if (!(asyc = kmalloc(sizeof(*asyc), GFP_KERNEL))) 241 return NULL; 242 __drm_atomic_helper_connector_duplicate_state(connector, &asyc->state); 243 asyc->dither = armc->dither; 244 asyc->scaler = armc->scaler; 245 asyc->procamp = armc->procamp; 246 asyc->set.mask = 0; 247 return &asyc->state; 248 } 249 250 void 251 nouveau_conn_reset(struct drm_connector *connector) 252 { 253 struct nouveau_connector *nv_connector = nouveau_connector(connector); 254 struct nouveau_conn_atom *asyc; 255 256 if (drm_drv_uses_atomic_modeset(connector->dev)) { 257 if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL)))) 258 return; 259 260 if (connector->state) 261 nouveau_conn_atomic_destroy_state(connector, 262 connector->state); 263 264 __drm_atomic_helper_connector_reset(connector, &asyc->state); 265 } else { 266 asyc = &nv_connector->properties_state; 267 } 268 269 asyc->dither.mode = DITHERING_MODE_AUTO; 270 asyc->dither.depth = DITHERING_DEPTH_AUTO; 271 asyc->scaler.mode = DRM_MODE_SCALE_NONE; 272 asyc->scaler.underscan.mode = UNDERSCAN_OFF; 273 asyc->procamp.color_vibrance = 150; 274 asyc->procamp.vibrant_hue = 90; 275 276 if (nouveau_display(connector->dev)->disp.object.oclass < NV50_DISP) { 277 switch (connector->connector_type) { 278 case DRM_MODE_CONNECTOR_LVDS: 279 /* See note in nouveau_conn_atomic_set_property(). */ 280 asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN; 281 break; 282 default: 283 break; 284 } 285 } 286 } 287 288 void 289 nouveau_conn_attach_properties(struct drm_connector *connector) 290 { 291 struct drm_device *dev = connector->dev; 292 struct nouveau_display *disp = nouveau_display(dev); 293 struct nouveau_connector *nv_connector = nouveau_connector(connector); 294 struct nouveau_conn_atom *armc; 295 296 if (drm_drv_uses_atomic_modeset(connector->dev)) 297 armc = nouveau_conn_atom(connector->state); 298 else 299 armc = &nv_connector->properties_state; 300 301 /* Init DVI-I specific properties. */ 302 if (connector->connector_type == DRM_MODE_CONNECTOR_DVII) 303 drm_object_attach_property(&connector->base, dev->mode_config. 304 dvi_i_subconnector_property, 0); 305 306 /* Add overscan compensation options to digital outputs. */ 307 if (disp->underscan_property && 308 (connector->connector_type == DRM_MODE_CONNECTOR_DVID || 309 connector->connector_type == DRM_MODE_CONNECTOR_DVII || 310 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || 311 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) { 312 drm_object_attach_property(&connector->base, 313 disp->underscan_property, 314 UNDERSCAN_OFF); 315 drm_object_attach_property(&connector->base, 316 disp->underscan_hborder_property, 0); 317 drm_object_attach_property(&connector->base, 318 disp->underscan_vborder_property, 0); 319 } 320 321 /* Add hue and saturation options. */ 322 if (disp->vibrant_hue_property) 323 drm_object_attach_property(&connector->base, 324 disp->vibrant_hue_property, 325 armc->procamp.vibrant_hue); 326 if (disp->color_vibrance_property) 327 drm_object_attach_property(&connector->base, 328 disp->color_vibrance_property, 329 armc->procamp.color_vibrance); 330 331 /* Scaling mode property. */ 332 switch (connector->connector_type) { 333 case DRM_MODE_CONNECTOR_TV: 334 break; 335 case DRM_MODE_CONNECTOR_VGA: 336 if (disp->disp.object.oclass < NV50_DISP) 337 break; /* Can only scale on DFPs. */ 338 /* Fall-through. */ 339 default: 340 drm_object_attach_property(&connector->base, dev->mode_config. 341 scaling_mode_property, 342 armc->scaler.mode); 343 break; 344 } 345 346 /* Dithering properties. */ 347 switch (connector->connector_type) { 348 case DRM_MODE_CONNECTOR_TV: 349 case DRM_MODE_CONNECTOR_VGA: 350 break; 351 default: 352 if (disp->dithering_mode) { 353 drm_object_attach_property(&connector->base, 354 disp->dithering_mode, 355 armc->dither.mode); 356 } 357 if (disp->dithering_depth) { 358 drm_object_attach_property(&connector->base, 359 disp->dithering_depth, 360 armc->dither.depth); 361 } 362 break; 363 } 364 } 365 366 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection"); 367 int nouveau_tv_disable = 0; 368 module_param_named(tv_disable, nouveau_tv_disable, int, 0400); 369 370 #if defined(CONFIG_ACPI_BUTTON) || \ 371 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE)) 372 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status"); 373 int nouveau_ignorelid = 0; 374 module_param_named(ignorelid, nouveau_ignorelid, int, 0400); 375 #endif 376 377 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)"); 378 int nouveau_duallink = 1; 379 module_param_named(duallink, nouveau_duallink, int, 0400); 380 381 MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)"); 382 int nouveau_hdmimhz = 0; 383 module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400); 384 385 struct nouveau_encoder * 386 find_encoder(struct drm_connector *connector, int type) 387 { 388 struct nouveau_encoder *nv_encoder; 389 struct drm_encoder *enc; 390 391 drm_connector_for_each_possible_encoder(connector, enc) { 392 nv_encoder = nouveau_encoder(enc); 393 394 if (type == DCB_OUTPUT_ANY || 395 (nv_encoder->dcb && nv_encoder->dcb->type == type)) 396 return nv_encoder; 397 } 398 399 return NULL; 400 } 401 402 struct nouveau_connector * 403 nouveau_encoder_connector_get(struct nouveau_encoder *encoder) 404 { 405 struct drm_device *dev = to_drm_encoder(encoder)->dev; 406 struct drm_connector *drm_connector; 407 408 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) { 409 if (drm_connector->encoder == to_drm_encoder(encoder)) 410 return nouveau_connector(drm_connector); 411 } 412 413 return NULL; 414 } 415 416 static void 417 nouveau_connector_destroy(struct drm_connector *connector) 418 { 419 struct nouveau_connector *nv_connector = nouveau_connector(connector); 420 nvif_notify_fini(&nv_connector->hpd); 421 kfree(nv_connector->edid); 422 drm_connector_unregister(connector); 423 drm_connector_cleanup(connector); 424 if (nv_connector->aux.transfer) { 425 drm_dp_cec_unregister_connector(&nv_connector->aux); 426 drm_dp_aux_unregister(&nv_connector->aux); 427 kfree(__UNCONST(nv_connector->aux.name)); 428 } 429 kfree(connector); 430 } 431 432 static struct nouveau_encoder * 433 nouveau_connector_ddc_detect(struct drm_connector *connector) 434 { 435 struct drm_device *dev = connector->dev; 436 struct nouveau_encoder *nv_encoder = NULL, *found = NULL; 437 struct drm_encoder *encoder; 438 int ret; 439 bool switcheroo_ddc = false; 440 441 drm_connector_for_each_possible_encoder(connector, encoder) { 442 nv_encoder = nouveau_encoder(encoder); 443 444 switch (nv_encoder->dcb->type) { 445 case DCB_OUTPUT_DP: 446 ret = nouveau_dp_detect(nv_encoder); 447 if (ret == NOUVEAU_DP_MST) 448 return NULL; 449 else if (ret == NOUVEAU_DP_SST) 450 found = nv_encoder; 451 452 break; 453 case DCB_OUTPUT_LVDS: 454 switcheroo_ddc = !!(vga_switcheroo_handler_flags() & 455 VGA_SWITCHEROO_CAN_SWITCH_DDC); 456 /* fall-through */ 457 default: 458 if (!nv_encoder->i2c) 459 break; 460 461 #ifdef __NetBSD__ 462 __USE(switcheroo_ddc); 463 __USE(dev); 464 #else 465 if (switcheroo_ddc) 466 vga_switcheroo_lock_ddc(dev->pdev); 467 #endif 468 if (nvkm_probe_i2c(nv_encoder->i2c, 0x50)) 469 found = nv_encoder; 470 #ifndef __NetBSD__ 471 if (switcheroo_ddc) 472 vga_switcheroo_unlock_ddc(dev->pdev); 473 #endif 474 475 break; 476 } 477 if (found) 478 break; 479 } 480 481 return found; 482 } 483 484 static struct nouveau_encoder * 485 nouveau_connector_of_detect(struct drm_connector *connector) 486 { 487 #ifdef __powerpc__ 488 struct drm_device *dev = connector->dev; 489 struct nouveau_connector *nv_connector = nouveau_connector(connector); 490 struct nouveau_encoder *nv_encoder; 491 struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev); 492 493 if (!dn || 494 !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) || 495 (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG)))) 496 return NULL; 497 498 for_each_child_of_node(dn, cn) { 499 const char *name = of_get_property(cn, "name", NULL); 500 const void *edid = of_get_property(cn, "EDID", NULL); 501 int idx = name ? name[strlen(name) - 1] - 'A' : 0; 502 503 if (nv_encoder->dcb->i2c_index == idx && edid) { 504 nv_connector->edid = 505 kmemdup(edid, EDID_LENGTH, GFP_KERNEL); 506 of_node_put(cn); 507 return nv_encoder; 508 } 509 } 510 #endif 511 return NULL; 512 } 513 514 static void 515 nouveau_connector_set_encoder(struct drm_connector *connector, 516 struct nouveau_encoder *nv_encoder) 517 { 518 struct nouveau_connector *nv_connector = nouveau_connector(connector); 519 struct nouveau_drm *drm = nouveau_drm(connector->dev); 520 struct drm_device *dev = connector->dev; 521 522 if (nv_connector->detected_encoder == nv_encoder) 523 return; 524 nv_connector->detected_encoder = nv_encoder; 525 526 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 527 connector->interlace_allowed = true; 528 connector->doublescan_allowed = true; 529 } else 530 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS || 531 nv_encoder->dcb->type == DCB_OUTPUT_TMDS) { 532 connector->doublescan_allowed = false; 533 connector->interlace_allowed = false; 534 } else { 535 connector->doublescan_allowed = true; 536 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN || 537 (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS && 538 (dev->pdev->device & 0x0ff0) != 0x0100 && 539 (dev->pdev->device & 0x0ff0) != 0x0150)) 540 /* HW is broken */ 541 connector->interlace_allowed = false; 542 else 543 connector->interlace_allowed = true; 544 } 545 546 if (nv_connector->type == DCB_CONNECTOR_DVI_I) { 547 drm_object_property_set_value(&connector->base, 548 dev->mode_config.dvi_i_subconnector_property, 549 nv_encoder->dcb->type == DCB_OUTPUT_TMDS ? 550 DRM_MODE_SUBCONNECTOR_DVID : 551 DRM_MODE_SUBCONNECTOR_DVIA); 552 } 553 } 554 555 static enum drm_connector_status 556 nouveau_connector_detect(struct drm_connector *connector, bool force) 557 { 558 struct drm_device *dev = connector->dev; 559 struct nouveau_drm *drm = nouveau_drm(dev); 560 struct nouveau_connector *nv_connector = nouveau_connector(connector); 561 struct nouveau_encoder *nv_encoder = NULL; 562 struct nouveau_encoder *nv_partner; 563 struct i2c_adapter *i2c; 564 int type; 565 int ret; 566 enum drm_connector_status conn_status = connector_status_disconnected; 567 568 /* Cleanup the previous EDID block. */ 569 if (nv_connector->edid) { 570 drm_connector_update_edid_property(connector, NULL); 571 kfree(nv_connector->edid); 572 nv_connector->edid = NULL; 573 } 574 575 /* Outputs are only polled while runtime active, so resuming the 576 * device here is unnecessary (and would deadlock upon runtime suspend 577 * because it waits for polling to finish). We do however, want to 578 * prevent the autosuspend timer from elapsing during this operation 579 * if possible. 580 */ 581 if (drm_kms_helper_is_poll_worker()) { 582 pm_runtime_get_noresume(dev->dev); 583 } else { 584 ret = pm_runtime_get_sync(dev->dev); 585 if (ret < 0 && ret != -EACCES) 586 return conn_status; 587 } 588 589 nv_encoder = nouveau_connector_ddc_detect(connector); 590 if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) { 591 if ((vga_switcheroo_handler_flags() & 592 VGA_SWITCHEROO_CAN_SWITCH_DDC) && 593 nv_connector->type == DCB_CONNECTOR_LVDS) 594 nv_connector->edid = drm_get_edid_switcheroo(connector, 595 i2c); 596 else 597 nv_connector->edid = drm_get_edid(connector, i2c); 598 599 drm_connector_update_edid_property(connector, 600 nv_connector->edid); 601 if (!nv_connector->edid) { 602 NV_ERROR(drm, "DDC responded, but no EDID for %s\n", 603 connector->name); 604 goto detect_analog; 605 } 606 607 /* Override encoder type for DVI-I based on whether EDID 608 * says the display is digital or analog, both use the 609 * same i2c channel so the value returned from ddc_detect 610 * isn't necessarily correct. 611 */ 612 nv_partner = NULL; 613 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS) 614 nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG); 615 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG) 616 nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS); 617 618 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG && 619 nv_partner->dcb->type == DCB_OUTPUT_TMDS) || 620 (nv_encoder->dcb->type == DCB_OUTPUT_TMDS && 621 nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) { 622 if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL) 623 type = DCB_OUTPUT_TMDS; 624 else 625 type = DCB_OUTPUT_ANALOG; 626 627 nv_encoder = find_encoder(connector, type); 628 BUG_ON(nv_encoder == NULL); 629 } 630 631 nouveau_connector_set_encoder(connector, nv_encoder); 632 conn_status = connector_status_connected; 633 drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid); 634 goto out; 635 } 636 637 nv_encoder = nouveau_connector_of_detect(connector); 638 if (nv_encoder) { 639 nouveau_connector_set_encoder(connector, nv_encoder); 640 conn_status = connector_status_connected; 641 goto out; 642 } 643 644 detect_analog: 645 nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG); 646 if (!nv_encoder && !nouveau_tv_disable) 647 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV); 648 if (nv_encoder && force) { 649 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 650 const struct drm_encoder_helper_funcs *helper = 651 encoder->helper_private; 652 653 if (helper->detect(encoder, connector) == 654 connector_status_connected) { 655 nouveau_connector_set_encoder(connector, nv_encoder); 656 conn_status = connector_status_connected; 657 goto out; 658 } 659 660 } 661 662 out: 663 664 pm_runtime_mark_last_busy(dev->dev); 665 pm_runtime_put_autosuspend(dev->dev); 666 667 return conn_status; 668 } 669 670 static enum drm_connector_status 671 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force) 672 { 673 struct drm_device *dev = connector->dev; 674 struct nouveau_drm *drm = nouveau_drm(dev); 675 struct nouveau_connector *nv_connector = nouveau_connector(connector); 676 struct nouveau_encoder *nv_encoder = NULL; 677 enum drm_connector_status status = connector_status_disconnected; 678 679 /* Cleanup the previous EDID block. */ 680 if (nv_connector->edid) { 681 drm_connector_update_edid_property(connector, NULL); 682 kfree(nv_connector->edid); 683 nv_connector->edid = NULL; 684 } 685 686 nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS); 687 if (!nv_encoder) 688 return connector_status_disconnected; 689 690 /* Try retrieving EDID via DDC */ 691 if (!drm->vbios.fp_no_ddc) { 692 status = nouveau_connector_detect(connector, force); 693 if (status == connector_status_connected) 694 goto out; 695 } 696 697 /* On some laptops (Sony, i'm looking at you) there appears to 698 * be no direct way of accessing the panel's EDID. The only 699 * option available to us appears to be to ask ACPI for help.. 700 * 701 * It's important this check's before trying straps, one of the 702 * said manufacturer's laptops are configured in such a way 703 * the nouveau decides an entry in the VBIOS FP mode table is 704 * valid - it's not (rh#613284) 705 */ 706 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) { 707 if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) { 708 status = connector_status_connected; 709 goto out; 710 } 711 } 712 713 /* If no EDID found above, and the VBIOS indicates a hardcoded 714 * modeline is avalilable for the panel, set it as the panel's 715 * native mode and exit. 716 */ 717 if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc || 718 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) { 719 status = connector_status_connected; 720 goto out; 721 } 722 723 /* Still nothing, some VBIOS images have a hardcoded EDID block 724 * stored for the panel stored in them. 725 */ 726 if (!drm->vbios.fp_no_ddc) { 727 struct edid *edid = 728 (struct edid *)nouveau_bios_embedded_edid(dev); 729 if (edid) { 730 nv_connector->edid = 731 kmemdup(edid, EDID_LENGTH, GFP_KERNEL); 732 if (nv_connector->edid) 733 status = connector_status_connected; 734 } 735 } 736 737 out: 738 #if defined(CONFIG_ACPI_BUTTON) || \ 739 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE)) 740 if (status == connector_status_connected && 741 !nouveau_ignorelid && !acpi_lid_open()) 742 status = connector_status_unknown; 743 #endif 744 745 drm_connector_update_edid_property(connector, nv_connector->edid); 746 nouveau_connector_set_encoder(connector, nv_encoder); 747 return status; 748 } 749 750 static void 751 nouveau_connector_force(struct drm_connector *connector) 752 { 753 struct nouveau_drm *drm = nouveau_drm(connector->dev); 754 struct nouveau_connector *nv_connector = nouveau_connector(connector); 755 struct nouveau_encoder *nv_encoder; 756 int type; 757 758 if (nv_connector->type == DCB_CONNECTOR_DVI_I) { 759 if (connector->force == DRM_FORCE_ON_DIGITAL) 760 type = DCB_OUTPUT_TMDS; 761 else 762 type = DCB_OUTPUT_ANALOG; 763 } else 764 type = DCB_OUTPUT_ANY; 765 766 nv_encoder = find_encoder(connector, type); 767 if (!nv_encoder) { 768 NV_ERROR(drm, "can't find encoder to force %s on!\n", 769 connector->name); 770 connector->status = connector_status_disconnected; 771 return; 772 } 773 774 nouveau_connector_set_encoder(connector, nv_encoder); 775 } 776 777 static int 778 nouveau_connector_set_property(struct drm_connector *connector, 779 struct drm_property *property, uint64_t value) 780 { 781 struct nouveau_connector *nv_connector = nouveau_connector(connector); 782 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 783 struct nouveau_conn_atom *asyc = &nv_connector->properties_state; 784 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 785 int ret; 786 787 ret = connector->funcs->atomic_set_property(&nv_connector->base, 788 &asyc->state, 789 property, value); 790 if (ret) { 791 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV) 792 return get_slave_funcs(encoder)->set_property( 793 encoder, connector, property, value); 794 return ret; 795 } 796 797 nv_connector->scaling_mode = asyc->scaler.mode; 798 nv_connector->dithering_mode = asyc->dither.mode; 799 800 if (connector->encoder && connector->encoder->crtc) { 801 ret = drm_crtc_helper_set_mode(connector->encoder->crtc, 802 &connector->encoder->crtc->mode, 803 connector->encoder->crtc->x, 804 connector->encoder->crtc->y, 805 NULL); 806 if (!ret) 807 return -EINVAL; 808 } 809 810 return 0; 811 } 812 813 struct moderec { 814 int hdisplay; 815 int vdisplay; 816 }; 817 818 static struct moderec scaler_modes[] = { 819 { 1920, 1200 }, 820 { 1920, 1080 }, 821 { 1680, 1050 }, 822 { 1600, 1200 }, 823 { 1400, 1050 }, 824 { 1280, 1024 }, 825 { 1280, 960 }, 826 { 1152, 864 }, 827 { 1024, 768 }, 828 { 800, 600 }, 829 { 720, 400 }, 830 { 640, 480 }, 831 { 640, 400 }, 832 { 640, 350 }, 833 {} 834 }; 835 836 static int 837 nouveau_connector_scaler_modes_add(struct drm_connector *connector) 838 { 839 struct nouveau_connector *nv_connector = nouveau_connector(connector); 840 struct drm_display_mode *native = nv_connector->native_mode, *m; 841 struct drm_device *dev = connector->dev; 842 struct moderec *mode = &scaler_modes[0]; 843 int modes = 0; 844 845 if (!native) 846 return 0; 847 848 while (mode->hdisplay) { 849 if (mode->hdisplay <= native->hdisplay && 850 mode->vdisplay <= native->vdisplay && 851 (mode->hdisplay != native->hdisplay || 852 mode->vdisplay != native->vdisplay)) { 853 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay, 854 drm_mode_vrefresh(native), false, 855 false, false); 856 if (!m) 857 continue; 858 859 drm_mode_probed_add(connector, m); 860 modes++; 861 } 862 863 mode++; 864 } 865 866 return modes; 867 } 868 869 static void 870 nouveau_connector_detect_depth(struct drm_connector *connector) 871 { 872 struct nouveau_drm *drm = nouveau_drm(connector->dev); 873 struct nouveau_connector *nv_connector = nouveau_connector(connector); 874 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 875 struct nvbios *bios = &drm->vbios; 876 struct drm_display_mode *mode = nv_connector->native_mode; 877 bool duallink; 878 879 /* if the edid is feeling nice enough to provide this info, use it */ 880 if (nv_connector->edid && connector->display_info.bpc) 881 return; 882 883 /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */ 884 if (nv_connector->type == DCB_CONNECTOR_eDP) { 885 connector->display_info.bpc = 6; 886 return; 887 } 888 889 /* we're out of options unless we're LVDS, default to 8bpc */ 890 if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) { 891 connector->display_info.bpc = 8; 892 return; 893 } 894 895 connector->display_info.bpc = 6; 896 897 /* LVDS: panel straps */ 898 if (bios->fp_no_ddc) { 899 if (bios->fp.if_is_24bit) 900 connector->display_info.bpc = 8; 901 return; 902 } 903 904 /* LVDS: DDC panel, need to first determine the number of links to 905 * know which if_is_24bit flag to check... 906 */ 907 if (nv_connector->edid && 908 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG) 909 duallink = ((u8 *)nv_connector->edid)[121] == 2; 910 else 911 duallink = mode->clock >= bios->fp.duallink_transition_clk; 912 913 if ((!duallink && (bios->fp.strapless_is_24bit & 1)) || 914 ( duallink && (bios->fp.strapless_is_24bit & 2))) 915 connector->display_info.bpc = 8; 916 } 917 918 static int 919 nouveau_connector_late_register(struct drm_connector *connector) 920 { 921 int ret; 922 923 ret = nouveau_backlight_init(connector); 924 925 return ret; 926 } 927 928 static void 929 nouveau_connector_early_unregister(struct drm_connector *connector) 930 { 931 nouveau_backlight_fini(connector); 932 } 933 934 static int 935 nouveau_connector_get_modes(struct drm_connector *connector) 936 { 937 struct drm_device *dev = connector->dev; 938 struct nouveau_drm *drm = nouveau_drm(dev); 939 struct nouveau_connector *nv_connector = nouveau_connector(connector); 940 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 941 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 942 int ret = 0; 943 944 /* destroy the native mode, the attached monitor could have changed. 945 */ 946 if (nv_connector->native_mode) { 947 drm_mode_destroy(dev, nv_connector->native_mode); 948 nv_connector->native_mode = NULL; 949 } 950 951 if (nv_connector->edid) 952 ret = drm_add_edid_modes(connector, nv_connector->edid); 953 else 954 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS && 955 (nv_encoder->dcb->lvdsconf.use_straps_for_mode || 956 drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) { 957 struct drm_display_mode mode; 958 959 nouveau_bios_fp_mode(dev, &mode); 960 nv_connector->native_mode = drm_mode_duplicate(dev, &mode); 961 } 962 963 /* Determine display colour depth for everything except LVDS now, 964 * DP requires this before mode_valid() is called. 965 */ 966 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS) 967 nouveau_connector_detect_depth(connector); 968 969 /* Find the native mode if this is a digital panel, if we didn't 970 * find any modes through DDC previously add the native mode to 971 * the list of modes. 972 */ 973 if (!nv_connector->native_mode) 974 nv_connector->native_mode = nouveau_conn_native_mode(connector); 975 if (ret == 0 && nv_connector->native_mode) { 976 struct drm_display_mode *mode; 977 978 mode = drm_mode_duplicate(dev, nv_connector->native_mode); 979 drm_mode_probed_add(connector, mode); 980 ret = 1; 981 } 982 983 /* Determine LVDS colour depth, must happen after determining 984 * "native" mode as some VBIOS tables require us to use the 985 * pixel clock as part of the lookup... 986 */ 987 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS) 988 nouveau_connector_detect_depth(connector); 989 990 if (nv_encoder->dcb->type == DCB_OUTPUT_TV) 991 ret = get_slave_funcs(encoder)->get_modes(encoder, connector); 992 993 if (nv_connector->type == DCB_CONNECTOR_LVDS || 994 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG || 995 nv_connector->type == DCB_CONNECTOR_eDP) 996 ret += nouveau_connector_scaler_modes_add(connector); 997 998 return ret; 999 } 1000 1001 static unsigned 1002 get_tmds_link_bandwidth(struct drm_connector *connector) 1003 { 1004 struct nouveau_connector *nv_connector = nouveau_connector(connector); 1005 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 1006 struct nouveau_drm *drm = nouveau_drm(connector->dev); 1007 struct dcb_output *dcb = nv_connector->detected_encoder->dcb; 1008 struct drm_display_info *info = NULL; 1009 unsigned duallink_scale = 1010 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1; 1011 1012 if (drm_detect_hdmi_monitor(nv_connector->edid)) { 1013 info = &nv_connector->base.display_info; 1014 duallink_scale = 1; 1015 } 1016 1017 if (info) { 1018 if (nouveau_hdmimhz > 0) 1019 return nouveau_hdmimhz * 1000; 1020 /* Note: these limits are conservative, some Fermi's 1021 * can do 297 MHz. Unclear how this can be determined. 1022 */ 1023 if (drm->client.device.info.chipset >= 0x120) { 1024 const int max_tmds_clock = 1025 info->hdmi.scdc.scrambling.supported ? 1026 594000 : 340000; 1027 return info->max_tmds_clock ? 1028 min(info->max_tmds_clock, max_tmds_clock) : 1029 max_tmds_clock; 1030 } 1031 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER) 1032 return 297000; 1033 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI) 1034 return 225000; 1035 } 1036 1037 if (dcb->location != DCB_LOC_ON_CHIP || 1038 drm->client.device.info.chipset >= 0x46) 1039 return 165000 * duallink_scale; 1040 else if (drm->client.device.info.chipset >= 0x40) 1041 return 155000 * duallink_scale; 1042 else if (drm->client.device.info.chipset >= 0x18) 1043 return 135000 * duallink_scale; 1044 else 1045 return 112000 * duallink_scale; 1046 } 1047 1048 static enum drm_mode_status 1049 nouveau_connector_mode_valid(struct drm_connector *connector, 1050 struct drm_display_mode *mode) 1051 { 1052 struct nouveau_connector *nv_connector = nouveau_connector(connector); 1053 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 1054 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 1055 unsigned min_clock = 25000, max_clock = min_clock; 1056 unsigned clock = mode->clock; 1057 1058 switch (nv_encoder->dcb->type) { 1059 case DCB_OUTPUT_LVDS: 1060 if (nv_connector->native_mode && 1061 (mode->hdisplay > nv_connector->native_mode->hdisplay || 1062 mode->vdisplay > nv_connector->native_mode->vdisplay)) 1063 return MODE_PANEL; 1064 1065 min_clock = 0; 1066 max_clock = 400000; 1067 break; 1068 case DCB_OUTPUT_TMDS: 1069 max_clock = get_tmds_link_bandwidth(connector); 1070 break; 1071 case DCB_OUTPUT_ANALOG: 1072 max_clock = nv_encoder->dcb->crtconf.maxfreq; 1073 if (!max_clock) 1074 max_clock = 350000; 1075 break; 1076 case DCB_OUTPUT_TV: 1077 return get_slave_funcs(encoder)->mode_valid(encoder, mode); 1078 case DCB_OUTPUT_DP: 1079 max_clock = nv_encoder->dp.link_nr; 1080 max_clock *= nv_encoder->dp.link_bw; 1081 clock = clock * (connector->display_info.bpc * 3) / 10; 1082 break; 1083 default: 1084 BUG(); 1085 return MODE_BAD; 1086 } 1087 1088 if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING) 1089 clock *= 2; 1090 1091 if (clock < min_clock) 1092 return MODE_CLOCK_LOW; 1093 1094 if (clock > max_clock) 1095 return MODE_CLOCK_HIGH; 1096 1097 return MODE_OK; 1098 } 1099 1100 static struct drm_encoder * 1101 nouveau_connector_best_encoder(struct drm_connector *connector) 1102 { 1103 struct nouveau_connector *nv_connector = nouveau_connector(connector); 1104 1105 if (nv_connector->detected_encoder) 1106 return to_drm_encoder(nv_connector->detected_encoder); 1107 1108 return NULL; 1109 } 1110 1111 static const struct drm_connector_helper_funcs 1112 nouveau_connector_helper_funcs = { 1113 .get_modes = nouveau_connector_get_modes, 1114 .mode_valid = nouveau_connector_mode_valid, 1115 .best_encoder = nouveau_connector_best_encoder, 1116 }; 1117 1118 static const struct drm_connector_funcs 1119 nouveau_connector_funcs = { 1120 .dpms = drm_helper_connector_dpms, 1121 .reset = nouveau_conn_reset, 1122 .detect = nouveau_connector_detect, 1123 .force = nouveau_connector_force, 1124 .fill_modes = drm_helper_probe_single_connector_modes, 1125 .set_property = nouveau_connector_set_property, 1126 .destroy = nouveau_connector_destroy, 1127 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state, 1128 .atomic_destroy_state = nouveau_conn_atomic_destroy_state, 1129 .atomic_set_property = nouveau_conn_atomic_set_property, 1130 .atomic_get_property = nouveau_conn_atomic_get_property, 1131 .late_register = nouveau_connector_late_register, 1132 .early_unregister = nouveau_connector_early_unregister, 1133 }; 1134 1135 static const struct drm_connector_funcs 1136 nouveau_connector_funcs_lvds = { 1137 .dpms = drm_helper_connector_dpms, 1138 .reset = nouveau_conn_reset, 1139 .detect = nouveau_connector_detect_lvds, 1140 .force = nouveau_connector_force, 1141 .fill_modes = drm_helper_probe_single_connector_modes, 1142 .set_property = nouveau_connector_set_property, 1143 .destroy = nouveau_connector_destroy, 1144 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state, 1145 .atomic_destroy_state = nouveau_conn_atomic_destroy_state, 1146 .atomic_set_property = nouveau_conn_atomic_set_property, 1147 .atomic_get_property = nouveau_conn_atomic_get_property, 1148 .late_register = nouveau_connector_late_register, 1149 .early_unregister = nouveau_connector_early_unregister, 1150 }; 1151 1152 static int 1153 nouveau_connector_hotplug(struct nvif_notify *notify) 1154 { 1155 struct nouveau_connector *nv_connector = 1156 container_of(notify, typeof(*nv_connector), hpd); 1157 struct drm_connector *connector = &nv_connector->base; 1158 struct nouveau_drm *drm = nouveau_drm(connector->dev); 1159 const struct nvif_notify_conn_rep_v0 *rep = notify->data; 1160 const char *name = connector->name; 1161 struct nouveau_encoder *nv_encoder; 1162 int ret; 1163 bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG); 1164 1165 if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) { 1166 NV_DEBUG(drm, "service %s\n", name); 1167 drm_dp_cec_irq(&nv_connector->aux); 1168 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) 1169 nv50_mstm_service(nv_encoder->dp.mstm); 1170 1171 return NVIF_NOTIFY_KEEP; 1172 } 1173 1174 ret = pm_runtime_get(drm->dev->dev); 1175 if (ret == 0) { 1176 /* We can't block here if there's a pending PM request 1177 * running, as we'll deadlock nouveau_display_fini() when it 1178 * calls nvif_put() on our nvif_notify struct. So, simply 1179 * defer the hotplug event until the device finishes resuming 1180 */ 1181 NV_DEBUG(drm, "Deferring HPD on %s until runtime resume\n", 1182 name); 1183 schedule_work(&drm->hpd_work); 1184 1185 pm_runtime_put_noidle(drm->dev->dev); 1186 return NVIF_NOTIFY_KEEP; 1187 } else if (ret != 1 && ret != -EACCES) { 1188 NV_WARN(drm, "HPD on %s dropped due to RPM failure: %d\n", 1189 name, ret); 1190 return NVIF_NOTIFY_DROP; 1191 } 1192 1193 if (!plugged) 1194 drm_dp_cec_unset_edid(&nv_connector->aux); 1195 NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name); 1196 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) { 1197 if (!plugged) 1198 nv50_mstm_remove(nv_encoder->dp.mstm); 1199 } 1200 1201 drm_helper_hpd_irq_event(connector->dev); 1202 1203 pm_runtime_mark_last_busy(drm->dev->dev); 1204 pm_runtime_put_autosuspend(drm->dev->dev); 1205 return NVIF_NOTIFY_KEEP; 1206 } 1207 1208 static ssize_t 1209 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg) 1210 { 1211 struct nouveau_connector *nv_connector = 1212 container_of(obj, typeof(*nv_connector), aux); 1213 struct nouveau_encoder *nv_encoder; 1214 struct nvkm_i2c_aux *aux; 1215 u8 size = msg->size; 1216 int ret; 1217 1218 nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP); 1219 if (!nv_encoder || !(aux = nv_encoder->aux)) 1220 return -ENODEV; 1221 if (WARN_ON(msg->size > 16)) 1222 return -E2BIG; 1223 1224 ret = nvkm_i2c_aux_acquire(aux); 1225 if (ret) 1226 return ret; 1227 1228 ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address, 1229 msg->buffer, &size); 1230 nvkm_i2c_aux_release(aux); 1231 if (ret >= 0) { 1232 msg->reply = ret; 1233 return size; 1234 } 1235 1236 return ret; 1237 } 1238 1239 static int 1240 drm_conntype_from_dcb(enum dcb_connector_type dcb) 1241 { 1242 switch (dcb) { 1243 case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA; 1244 case DCB_CONNECTOR_TV_0 : 1245 case DCB_CONNECTOR_TV_1 : 1246 case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV; 1247 case DCB_CONNECTOR_DMS59_0 : 1248 case DCB_CONNECTOR_DMS59_1 : 1249 case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII; 1250 case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID; 1251 case DCB_CONNECTOR_LVDS : 1252 case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS; 1253 case DCB_CONNECTOR_DMS59_DP0: 1254 case DCB_CONNECTOR_DMS59_DP1: 1255 case DCB_CONNECTOR_DP : 1256 case DCB_CONNECTOR_USB_C : return DRM_MODE_CONNECTOR_DisplayPort; 1257 case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP; 1258 case DCB_CONNECTOR_HDMI_0 : 1259 case DCB_CONNECTOR_HDMI_1 : 1260 case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA; 1261 case DCB_CONNECTOR_WFD : return DRM_MODE_CONNECTOR_VIRTUAL; 1262 default: 1263 break; 1264 } 1265 1266 return DRM_MODE_CONNECTOR_Unknown; 1267 } 1268 1269 struct drm_connector * 1270 nouveau_connector_create(struct drm_device *dev, 1271 const struct dcb_output *dcbe) 1272 { 1273 const struct drm_connector_funcs *funcs = &nouveau_connector_funcs; 1274 struct nouveau_drm *drm = nouveau_drm(dev); 1275 struct nouveau_display *disp = nouveau_display(dev); 1276 struct nouveau_connector *nv_connector = NULL; 1277 struct drm_connector *connector; 1278 struct drm_connector_list_iter conn_iter; 1279 char aux_name[48] = {0}; 1280 int index = dcbe->connector; 1281 int type, ret = 0; 1282 bool dummy; 1283 1284 drm_connector_list_iter_begin(dev, &conn_iter); 1285 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) { 1286 nv_connector = nouveau_connector(connector); 1287 if (nv_connector->index == index) { 1288 drm_connector_list_iter_end(&conn_iter); 1289 return connector; 1290 } 1291 } 1292 drm_connector_list_iter_end(&conn_iter); 1293 1294 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL); 1295 if (!nv_connector) 1296 return ERR_PTR(-ENOMEM); 1297 1298 connector = &nv_connector->base; 1299 nv_connector->index = index; 1300 1301 /* attempt to parse vbios connector type and hotplug gpio */ 1302 nv_connector->dcb = olddcb_conn(dev, index); 1303 if (nv_connector->dcb) { 1304 u32 entry = ROM16(nv_connector->dcb[0]); 1305 if (olddcb_conntab(dev)[3] >= 4) 1306 entry |= (u32)ROM16(nv_connector->dcb[2]) << 16; 1307 1308 nv_connector->type = nv_connector->dcb[0]; 1309 if (drm_conntype_from_dcb(nv_connector->type) == 1310 DRM_MODE_CONNECTOR_Unknown) { 1311 NV_WARN(drm, "unknown connector type %02x\n", 1312 nv_connector->type); 1313 nv_connector->type = DCB_CONNECTOR_NONE; 1314 } 1315 1316 /* Gigabyte NX85T */ 1317 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) { 1318 if (nv_connector->type == DCB_CONNECTOR_HDMI_1) 1319 nv_connector->type = DCB_CONNECTOR_DVI_I; 1320 } 1321 1322 /* Gigabyte GV-NX86T512H */ 1323 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) { 1324 if (nv_connector->type == DCB_CONNECTOR_HDMI_1) 1325 nv_connector->type = DCB_CONNECTOR_DVI_I; 1326 } 1327 } else { 1328 nv_connector->type = DCB_CONNECTOR_NONE; 1329 } 1330 1331 /* no vbios data, or an unknown dcb connector type - attempt to 1332 * figure out something suitable ourselves 1333 */ 1334 if (nv_connector->type == DCB_CONNECTOR_NONE) { 1335 struct dcb_table *dcbt = &drm->vbios.dcb; 1336 u32 encoders = 0; 1337 int i; 1338 1339 for (i = 0; i < dcbt->entries; i++) { 1340 if (dcbt->entry[i].connector == nv_connector->index) 1341 encoders |= (1 << dcbt->entry[i].type); 1342 } 1343 1344 if (encoders & (1 << DCB_OUTPUT_DP)) { 1345 if (encoders & (1 << DCB_OUTPUT_TMDS)) 1346 nv_connector->type = DCB_CONNECTOR_DP; 1347 else 1348 nv_connector->type = DCB_CONNECTOR_eDP; 1349 } else 1350 if (encoders & (1 << DCB_OUTPUT_TMDS)) { 1351 if (encoders & (1 << DCB_OUTPUT_ANALOG)) 1352 nv_connector->type = DCB_CONNECTOR_DVI_I; 1353 else 1354 nv_connector->type = DCB_CONNECTOR_DVI_D; 1355 } else 1356 if (encoders & (1 << DCB_OUTPUT_ANALOG)) { 1357 nv_connector->type = DCB_CONNECTOR_VGA; 1358 } else 1359 if (encoders & (1 << DCB_OUTPUT_LVDS)) { 1360 nv_connector->type = DCB_CONNECTOR_LVDS; 1361 } else 1362 if (encoders & (1 << DCB_OUTPUT_TV)) { 1363 nv_connector->type = DCB_CONNECTOR_TV_0; 1364 } 1365 } 1366 1367 switch ((type = drm_conntype_from_dcb(nv_connector->type))) { 1368 case DRM_MODE_CONNECTOR_LVDS: 1369 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy); 1370 if (ret) { 1371 NV_ERROR(drm, "Error parsing LVDS table, disabling\n"); 1372 kfree(nv_connector); 1373 return ERR_PTR(ret); 1374 } 1375 1376 funcs = &nouveau_connector_funcs_lvds; 1377 break; 1378 case DRM_MODE_CONNECTOR_DisplayPort: 1379 case DRM_MODE_CONNECTOR_eDP: 1380 nv_connector->aux.dev = connector->kdev; 1381 nv_connector->aux.transfer = nouveau_connector_aux_xfer; 1382 snprintf(aux_name, sizeof(aux_name), "sor-%04x-%04x", 1383 dcbe->hasht, dcbe->hashm); 1384 nv_connector->aux.name = kstrdup(aux_name, GFP_KERNEL); 1385 ret = drm_dp_aux_register(&nv_connector->aux); 1386 if (ret) { 1387 NV_ERROR(drm, "failed to register aux channel\n"); 1388 kfree(nv_connector); 1389 return ERR_PTR(ret); 1390 } 1391 funcs = &nouveau_connector_funcs; 1392 break; 1393 default: 1394 funcs = &nouveau_connector_funcs; 1395 break; 1396 } 1397 1398 /* HDMI 3D support */ 1399 if ((disp->disp.object.oclass >= G82_DISP) 1400 && ((type == DRM_MODE_CONNECTOR_DisplayPort) 1401 || (type == DRM_MODE_CONNECTOR_eDP) 1402 || (type == DRM_MODE_CONNECTOR_HDMIA))) 1403 connector->stereo_allowed = true; 1404 1405 /* defaults, will get overridden in detect() */ 1406 connector->interlace_allowed = false; 1407 connector->doublescan_allowed = false; 1408 1409 drm_connector_init(dev, connector, funcs, type); 1410 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs); 1411 1412 connector->funcs->reset(connector); 1413 nouveau_conn_attach_properties(connector); 1414 1415 /* Default scaling mode */ 1416 switch (nv_connector->type) { 1417 case DCB_CONNECTOR_LVDS: 1418 case DCB_CONNECTOR_LVDS_SPWG: 1419 case DCB_CONNECTOR_eDP: 1420 /* see note in nouveau_connector_set_property() */ 1421 if (disp->disp.object.oclass < NV50_DISP) { 1422 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN; 1423 break; 1424 } 1425 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE; 1426 break; 1427 default: 1428 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE; 1429 break; 1430 } 1431 1432 /* dithering properties */ 1433 switch (nv_connector->type) { 1434 case DCB_CONNECTOR_TV_0: 1435 case DCB_CONNECTOR_TV_1: 1436 case DCB_CONNECTOR_TV_3: 1437 case DCB_CONNECTOR_VGA: 1438 break; 1439 default: 1440 nv_connector->dithering_mode = DITHERING_MODE_AUTO; 1441 break; 1442 } 1443 1444 switch (type) { 1445 case DRM_MODE_CONNECTOR_DisplayPort: 1446 case DRM_MODE_CONNECTOR_eDP: 1447 drm_dp_cec_register_connector(&nv_connector->aux, connector); 1448 break; 1449 } 1450 1451 ret = nvif_notify_init(&disp->disp.object, nouveau_connector_hotplug, 1452 true, NV04_DISP_NTFY_CONN, 1453 &(struct nvif_notify_conn_req_v0) { 1454 .mask = NVIF_NOTIFY_CONN_V0_ANY, 1455 .conn = index, 1456 }, 1457 sizeof(struct nvif_notify_conn_req_v0), 1458 sizeof(struct nvif_notify_conn_rep_v0), 1459 &nv_connector->hpd); 1460 if (ret) 1461 connector->polled = DRM_CONNECTOR_POLL_CONNECT; 1462 else 1463 connector->polled = DRM_CONNECTOR_POLL_HPD; 1464 1465 drm_connector_register(connector); 1466 return connector; 1467 } 1468
Indexes created Sat Sep 20 22:09:52 GMT 2025