nouveau_connector.c revision 1.1.1.2
1 /* $NetBSD: nouveau_connector.c,v 1.1.1.2 2014/08/06 12:36:23 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 1.1.1.2 2014/08/06 12:36:23 riastradh Exp $"); 31 32 #include <acpi/button.h> 33 34 #include <linux/pm_runtime.h> 35 36 #include <drm/drmP.h> 37 #include <drm/drm_edid.h> 38 #include <drm/drm_crtc_helper.h> 39 40 #include "nouveau_reg.h" 41 #include "nouveau_drm.h" 42 #include "dispnv04/hw.h" 43 #include "nouveau_acpi.h" 44 45 #include "nouveau_display.h" 46 #include "nouveau_connector.h" 47 #include "nouveau_encoder.h" 48 #include "nouveau_crtc.h" 49 50 #include <subdev/i2c.h> 51 #include <subdev/gpio.h> 52 53 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection"); 54 static int nouveau_tv_disable = 0; 55 module_param_named(tv_disable, nouveau_tv_disable, int, 0400); 56 57 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status"); 58 static int nouveau_ignorelid = 0; 59 module_param_named(ignorelid, nouveau_ignorelid, int, 0400); 60 61 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)"); 62 static int nouveau_duallink = 1; 63 module_param_named(duallink, nouveau_duallink, int, 0400); 64 65 struct nouveau_encoder * 66 find_encoder(struct drm_connector *connector, int type) 67 { 68 struct drm_device *dev = connector->dev; 69 struct nouveau_encoder *nv_encoder; 70 struct drm_mode_object *obj; 71 int i, id; 72 73 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 74 id = connector->encoder_ids[i]; 75 if (!id) 76 break; 77 78 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER); 79 if (!obj) 80 continue; 81 nv_encoder = nouveau_encoder(obj_to_encoder(obj)); 82 83 if (type == DCB_OUTPUT_ANY || nv_encoder->dcb->type == type) 84 return nv_encoder; 85 } 86 87 return NULL; 88 } 89 90 struct nouveau_connector * 91 nouveau_encoder_connector_get(struct nouveau_encoder *encoder) 92 { 93 struct drm_device *dev = to_drm_encoder(encoder)->dev; 94 struct drm_connector *drm_connector; 95 96 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) { 97 if (drm_connector->encoder == to_drm_encoder(encoder)) 98 return nouveau_connector(drm_connector); 99 } 100 101 return NULL; 102 } 103 104 static void 105 nouveau_connector_destroy(struct drm_connector *connector) 106 { 107 struct nouveau_connector *nv_connector = nouveau_connector(connector); 108 nouveau_event_ref(NULL, &nv_connector->hpd_func); 109 kfree(nv_connector->edid); 110 drm_sysfs_connector_remove(connector); 111 drm_connector_cleanup(connector); 112 kfree(connector); 113 } 114 115 static struct nouveau_i2c_port * 116 nouveau_connector_ddc_detect(struct drm_connector *connector, 117 struct nouveau_encoder **pnv_encoder) 118 { 119 struct drm_device *dev = connector->dev; 120 struct nouveau_connector *nv_connector = nouveau_connector(connector); 121 struct nouveau_drm *drm = nouveau_drm(dev); 122 struct nouveau_gpio *gpio = nouveau_gpio(drm->device); 123 struct nouveau_i2c_port *port = NULL; 124 int i, panel = -ENODEV; 125 126 /* eDP panels need powering on by us (if the VBIOS doesn't default it 127 * to on) before doing any AUX channel transactions. LVDS panel power 128 * is handled by the SOR itself, and not required for LVDS DDC. 129 */ 130 if (nv_connector->type == DCB_CONNECTOR_eDP) { 131 panel = gpio->get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff); 132 if (panel == 0) { 133 gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1); 134 msleep(300); 135 } 136 } 137 138 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 139 struct nouveau_encoder *nv_encoder; 140 struct drm_mode_object *obj; 141 int id; 142 143 id = connector->encoder_ids[i]; 144 if (!id) 145 break; 146 147 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER); 148 if (!obj) 149 continue; 150 nv_encoder = nouveau_encoder(obj_to_encoder(obj)); 151 152 port = nv_encoder->i2c; 153 if (port && nv_probe_i2c(port, 0x50)) { 154 *pnv_encoder = nv_encoder; 155 break; 156 } 157 158 port = NULL; 159 } 160 161 /* eDP panel not detected, restore panel power GPIO to previous 162 * state to avoid confusing the SOR for other output types. 163 */ 164 if (!port && panel == 0) 165 gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, panel); 166 167 return port; 168 } 169 170 static struct nouveau_encoder * 171 nouveau_connector_of_detect(struct drm_connector *connector) 172 { 173 #ifdef __powerpc__ 174 struct drm_device *dev = connector->dev; 175 struct nouveau_connector *nv_connector = nouveau_connector(connector); 176 struct nouveau_encoder *nv_encoder; 177 struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev); 178 179 if (!dn || 180 !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) || 181 (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG)))) 182 return NULL; 183 184 for_each_child_of_node(dn, cn) { 185 const char *name = of_get_property(cn, "name", NULL); 186 const void *edid = of_get_property(cn, "EDID", NULL); 187 int idx = name ? name[strlen(name) - 1] - 'A' : 0; 188 189 if (nv_encoder->dcb->i2c_index == idx && edid) { 190 nv_connector->edid = 191 kmemdup(edid, EDID_LENGTH, GFP_KERNEL); 192 of_node_put(cn); 193 return nv_encoder; 194 } 195 } 196 #endif 197 return NULL; 198 } 199 200 static void 201 nouveau_connector_set_encoder(struct drm_connector *connector, 202 struct nouveau_encoder *nv_encoder) 203 { 204 struct nouveau_connector *nv_connector = nouveau_connector(connector); 205 struct nouveau_drm *drm = nouveau_drm(connector->dev); 206 struct drm_device *dev = connector->dev; 207 208 if (nv_connector->detected_encoder == nv_encoder) 209 return; 210 nv_connector->detected_encoder = nv_encoder; 211 212 if (nv_device(drm->device)->card_type >= NV_50) { 213 connector->interlace_allowed = true; 214 connector->doublescan_allowed = true; 215 } else 216 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS || 217 nv_encoder->dcb->type == DCB_OUTPUT_TMDS) { 218 connector->doublescan_allowed = false; 219 connector->interlace_allowed = false; 220 } else { 221 connector->doublescan_allowed = true; 222 if (nv_device(drm->device)->card_type == NV_20 || 223 ((nv_device(drm->device)->card_type == NV_10 || 224 nv_device(drm->device)->card_type == NV_11) && 225 (dev->pdev->device & 0x0ff0) != 0x0100 && 226 (dev->pdev->device & 0x0ff0) != 0x0150)) 227 /* HW is broken */ 228 connector->interlace_allowed = false; 229 else 230 connector->interlace_allowed = true; 231 } 232 233 if (nv_connector->type == DCB_CONNECTOR_DVI_I) { 234 drm_object_property_set_value(&connector->base, 235 dev->mode_config.dvi_i_subconnector_property, 236 nv_encoder->dcb->type == DCB_OUTPUT_TMDS ? 237 DRM_MODE_SUBCONNECTOR_DVID : 238 DRM_MODE_SUBCONNECTOR_DVIA); 239 } 240 } 241 242 static enum drm_connector_status 243 nouveau_connector_detect(struct drm_connector *connector, bool force) 244 { 245 struct drm_device *dev = connector->dev; 246 struct nouveau_drm *drm = nouveau_drm(dev); 247 struct nouveau_connector *nv_connector = nouveau_connector(connector); 248 struct nouveau_encoder *nv_encoder = NULL; 249 struct nouveau_encoder *nv_partner; 250 struct nouveau_i2c_port *i2c; 251 int type; 252 int ret; 253 enum drm_connector_status conn_status = connector_status_disconnected; 254 255 /* Cleanup the previous EDID block. */ 256 if (nv_connector->edid) { 257 drm_mode_connector_update_edid_property(connector, NULL); 258 kfree(nv_connector->edid); 259 nv_connector->edid = NULL; 260 } 261 262 ret = pm_runtime_get_sync(connector->dev->dev); 263 if (ret < 0 && ret != -EACCES) 264 return conn_status; 265 266 i2c = nouveau_connector_ddc_detect(connector, &nv_encoder); 267 if (i2c) { 268 nv_connector->edid = drm_get_edid(connector, &i2c->adapter); 269 drm_mode_connector_update_edid_property(connector, 270 nv_connector->edid); 271 if (!nv_connector->edid) { 272 NV_ERROR(drm, "DDC responded, but no EDID for %s\n", 273 drm_get_connector_name(connector)); 274 goto detect_analog; 275 } 276 277 if (nv_encoder->dcb->type == DCB_OUTPUT_DP && 278 !nouveau_dp_detect(to_drm_encoder(nv_encoder))) { 279 NV_ERROR(drm, "Detected %s, but failed init\n", 280 drm_get_connector_name(connector)); 281 conn_status = connector_status_disconnected; 282 goto out; 283 } 284 285 /* Override encoder type for DVI-I based on whether EDID 286 * says the display is digital or analog, both use the 287 * same i2c channel so the value returned from ddc_detect 288 * isn't necessarily correct. 289 */ 290 nv_partner = NULL; 291 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS) 292 nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG); 293 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG) 294 nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS); 295 296 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG && 297 nv_partner->dcb->type == DCB_OUTPUT_TMDS) || 298 (nv_encoder->dcb->type == DCB_OUTPUT_TMDS && 299 nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) { 300 if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL) 301 type = DCB_OUTPUT_TMDS; 302 else 303 type = DCB_OUTPUT_ANALOG; 304 305 nv_encoder = find_encoder(connector, type); 306 } 307 308 nouveau_connector_set_encoder(connector, nv_encoder); 309 conn_status = connector_status_connected; 310 goto out; 311 } 312 313 nv_encoder = nouveau_connector_of_detect(connector); 314 if (nv_encoder) { 315 nouveau_connector_set_encoder(connector, nv_encoder); 316 conn_status = connector_status_connected; 317 goto out; 318 } 319 320 detect_analog: 321 nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG); 322 if (!nv_encoder && !nouveau_tv_disable) 323 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV); 324 if (nv_encoder && force) { 325 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 326 struct drm_encoder_helper_funcs *helper = 327 encoder->helper_private; 328 329 if (helper->detect(encoder, connector) == 330 connector_status_connected) { 331 nouveau_connector_set_encoder(connector, nv_encoder); 332 conn_status = connector_status_connected; 333 goto out; 334 } 335 336 } 337 338 out: 339 340 pm_runtime_mark_last_busy(connector->dev->dev); 341 pm_runtime_put_autosuspend(connector->dev->dev); 342 343 return conn_status; 344 } 345 346 static enum drm_connector_status 347 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force) 348 { 349 struct drm_device *dev = connector->dev; 350 struct nouveau_drm *drm = nouveau_drm(dev); 351 struct nouveau_connector *nv_connector = nouveau_connector(connector); 352 struct nouveau_encoder *nv_encoder = NULL; 353 enum drm_connector_status status = connector_status_disconnected; 354 355 /* Cleanup the previous EDID block. */ 356 if (nv_connector->edid) { 357 drm_mode_connector_update_edid_property(connector, NULL); 358 kfree(nv_connector->edid); 359 nv_connector->edid = NULL; 360 } 361 362 nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS); 363 if (!nv_encoder) 364 return connector_status_disconnected; 365 366 /* Try retrieving EDID via DDC */ 367 if (!drm->vbios.fp_no_ddc) { 368 status = nouveau_connector_detect(connector, force); 369 if (status == connector_status_connected) 370 goto out; 371 } 372 373 /* On some laptops (Sony, i'm looking at you) there appears to 374 * be no direct way of accessing the panel's EDID. The only 375 * option available to us appears to be to ask ACPI for help.. 376 * 377 * It's important this check's before trying straps, one of the 378 * said manufacturer's laptops are configured in such a way 379 * the nouveau decides an entry in the VBIOS FP mode table is 380 * valid - it's not (rh#613284) 381 */ 382 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) { 383 if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) { 384 status = connector_status_connected; 385 goto out; 386 } 387 } 388 389 /* If no EDID found above, and the VBIOS indicates a hardcoded 390 * modeline is avalilable for the panel, set it as the panel's 391 * native mode and exit. 392 */ 393 if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc || 394 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) { 395 status = connector_status_connected; 396 goto out; 397 } 398 399 /* Still nothing, some VBIOS images have a hardcoded EDID block 400 * stored for the panel stored in them. 401 */ 402 if (!drm->vbios.fp_no_ddc) { 403 struct edid *edid = 404 (struct edid *)nouveau_bios_embedded_edid(dev); 405 if (edid) { 406 nv_connector->edid = 407 kmemdup(edid, EDID_LENGTH, GFP_KERNEL); 408 if (nv_connector->edid) 409 status = connector_status_connected; 410 } 411 } 412 413 out: 414 #if defined(CONFIG_ACPI_BUTTON) || \ 415 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE)) 416 if (status == connector_status_connected && 417 !nouveau_ignorelid && !acpi_lid_open()) 418 status = connector_status_unknown; 419 #endif 420 421 drm_mode_connector_update_edid_property(connector, nv_connector->edid); 422 nouveau_connector_set_encoder(connector, nv_encoder); 423 return status; 424 } 425 426 static void 427 nouveau_connector_force(struct drm_connector *connector) 428 { 429 struct nouveau_drm *drm = nouveau_drm(connector->dev); 430 struct nouveau_connector *nv_connector = nouveau_connector(connector); 431 struct nouveau_encoder *nv_encoder; 432 int type; 433 434 if (nv_connector->type == DCB_CONNECTOR_DVI_I) { 435 if (connector->force == DRM_FORCE_ON_DIGITAL) 436 type = DCB_OUTPUT_TMDS; 437 else 438 type = DCB_OUTPUT_ANALOG; 439 } else 440 type = DCB_OUTPUT_ANY; 441 442 nv_encoder = find_encoder(connector, type); 443 if (!nv_encoder) { 444 NV_ERROR(drm, "can't find encoder to force %s on!\n", 445 drm_get_connector_name(connector)); 446 connector->status = connector_status_disconnected; 447 return; 448 } 449 450 nouveau_connector_set_encoder(connector, nv_encoder); 451 } 452 453 static int 454 nouveau_connector_set_property(struct drm_connector *connector, 455 struct drm_property *property, uint64_t value) 456 { 457 struct nouveau_display *disp = nouveau_display(connector->dev); 458 struct nouveau_connector *nv_connector = nouveau_connector(connector); 459 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 460 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 461 struct drm_device *dev = connector->dev; 462 struct nouveau_crtc *nv_crtc; 463 int ret; 464 465 nv_crtc = NULL; 466 if (connector->encoder && connector->encoder->crtc) 467 nv_crtc = nouveau_crtc(connector->encoder->crtc); 468 469 /* Scaling mode */ 470 if (property == dev->mode_config.scaling_mode_property) { 471 bool modeset = false; 472 473 switch (value) { 474 case DRM_MODE_SCALE_NONE: 475 case DRM_MODE_SCALE_FULLSCREEN: 476 case DRM_MODE_SCALE_CENTER: 477 case DRM_MODE_SCALE_ASPECT: 478 break; 479 default: 480 return -EINVAL; 481 } 482 483 /* LVDS always needs gpu scaling */ 484 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS && 485 value == DRM_MODE_SCALE_NONE) 486 return -EINVAL; 487 488 /* Changing between GPU and panel scaling requires a full 489 * modeset 490 */ 491 if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) || 492 (value == DRM_MODE_SCALE_NONE)) 493 modeset = true; 494 nv_connector->scaling_mode = value; 495 496 if (!nv_crtc) 497 return 0; 498 499 if (modeset || !nv_crtc->set_scale) { 500 ret = drm_crtc_helper_set_mode(&nv_crtc->base, 501 &nv_crtc->base.mode, 502 nv_crtc->base.x, 503 nv_crtc->base.y, NULL); 504 if (!ret) 505 return -EINVAL; 506 } else { 507 ret = nv_crtc->set_scale(nv_crtc, true); 508 if (ret) 509 return ret; 510 } 511 512 return 0; 513 } 514 515 /* Underscan */ 516 if (property == disp->underscan_property) { 517 if (nv_connector->underscan != value) { 518 nv_connector->underscan = value; 519 if (!nv_crtc || !nv_crtc->set_scale) 520 return 0; 521 522 return nv_crtc->set_scale(nv_crtc, true); 523 } 524 525 return 0; 526 } 527 528 if (property == disp->underscan_hborder_property) { 529 if (nv_connector->underscan_hborder != value) { 530 nv_connector->underscan_hborder = value; 531 if (!nv_crtc || !nv_crtc->set_scale) 532 return 0; 533 534 return nv_crtc->set_scale(nv_crtc, true); 535 } 536 537 return 0; 538 } 539 540 if (property == disp->underscan_vborder_property) { 541 if (nv_connector->underscan_vborder != value) { 542 nv_connector->underscan_vborder = value; 543 if (!nv_crtc || !nv_crtc->set_scale) 544 return 0; 545 546 return nv_crtc->set_scale(nv_crtc, true); 547 } 548 549 return 0; 550 } 551 552 /* Dithering */ 553 if (property == disp->dithering_mode) { 554 nv_connector->dithering_mode = value; 555 if (!nv_crtc || !nv_crtc->set_dither) 556 return 0; 557 558 return nv_crtc->set_dither(nv_crtc, true); 559 } 560 561 if (property == disp->dithering_depth) { 562 nv_connector->dithering_depth = value; 563 if (!nv_crtc || !nv_crtc->set_dither) 564 return 0; 565 566 return nv_crtc->set_dither(nv_crtc, true); 567 } 568 569 if (nv_crtc && nv_crtc->set_color_vibrance) { 570 /* Hue */ 571 if (property == disp->vibrant_hue_property) { 572 nv_crtc->vibrant_hue = value - 90; 573 return nv_crtc->set_color_vibrance(nv_crtc, true); 574 } 575 /* Saturation */ 576 if (property == disp->color_vibrance_property) { 577 nv_crtc->color_vibrance = value - 100; 578 return nv_crtc->set_color_vibrance(nv_crtc, true); 579 } 580 } 581 582 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV) 583 return get_slave_funcs(encoder)->set_property( 584 encoder, connector, property, value); 585 586 return -EINVAL; 587 } 588 589 static struct drm_display_mode * 590 nouveau_connector_native_mode(struct drm_connector *connector) 591 { 592 struct drm_connector_helper_funcs *helper = connector->helper_private; 593 struct nouveau_drm *drm = nouveau_drm(connector->dev); 594 struct nouveau_connector *nv_connector = nouveau_connector(connector); 595 struct drm_device *dev = connector->dev; 596 struct drm_display_mode *mode, *largest = NULL; 597 int high_w = 0, high_h = 0, high_v = 0; 598 599 list_for_each_entry(mode, &nv_connector->base.probed_modes, head) { 600 mode->vrefresh = drm_mode_vrefresh(mode); 601 if (helper->mode_valid(connector, mode) != MODE_OK || 602 (mode->flags & DRM_MODE_FLAG_INTERLACE)) 603 continue; 604 605 /* Use preferred mode if there is one.. */ 606 if (mode->type & DRM_MODE_TYPE_PREFERRED) { 607 NV_DEBUG(drm, "native mode from preferred\n"); 608 return drm_mode_duplicate(dev, mode); 609 } 610 611 /* Otherwise, take the resolution with the largest width, then 612 * height, then vertical refresh 613 */ 614 if (mode->hdisplay < high_w) 615 continue; 616 617 if (mode->hdisplay == high_w && mode->vdisplay < high_h) 618 continue; 619 620 if (mode->hdisplay == high_w && mode->vdisplay == high_h && 621 mode->vrefresh < high_v) 622 continue; 623 624 high_w = mode->hdisplay; 625 high_h = mode->vdisplay; 626 high_v = mode->vrefresh; 627 largest = mode; 628 } 629 630 NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n", 631 high_w, high_h, high_v); 632 return largest ? drm_mode_duplicate(dev, largest) : NULL; 633 } 634 635 struct moderec { 636 int hdisplay; 637 int vdisplay; 638 }; 639 640 static struct moderec scaler_modes[] = { 641 { 1920, 1200 }, 642 { 1920, 1080 }, 643 { 1680, 1050 }, 644 { 1600, 1200 }, 645 { 1400, 1050 }, 646 { 1280, 1024 }, 647 { 1280, 960 }, 648 { 1152, 864 }, 649 { 1024, 768 }, 650 { 800, 600 }, 651 { 720, 400 }, 652 { 640, 480 }, 653 { 640, 400 }, 654 { 640, 350 }, 655 {} 656 }; 657 658 static int 659 nouveau_connector_scaler_modes_add(struct drm_connector *connector) 660 { 661 struct nouveau_connector *nv_connector = nouveau_connector(connector); 662 struct drm_display_mode *native = nv_connector->native_mode, *m; 663 struct drm_device *dev = connector->dev; 664 struct moderec *mode = &scaler_modes[0]; 665 int modes = 0; 666 667 if (!native) 668 return 0; 669 670 while (mode->hdisplay) { 671 if (mode->hdisplay <= native->hdisplay && 672 mode->vdisplay <= native->vdisplay) { 673 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay, 674 drm_mode_vrefresh(native), false, 675 false, false); 676 if (!m) 677 continue; 678 679 m->type |= DRM_MODE_TYPE_DRIVER; 680 681 drm_mode_probed_add(connector, m); 682 modes++; 683 } 684 685 mode++; 686 } 687 688 return modes; 689 } 690 691 static void 692 nouveau_connector_detect_depth(struct drm_connector *connector) 693 { 694 struct nouveau_drm *drm = nouveau_drm(connector->dev); 695 struct nouveau_connector *nv_connector = nouveau_connector(connector); 696 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 697 struct nvbios *bios = &drm->vbios; 698 struct drm_display_mode *mode = nv_connector->native_mode; 699 bool duallink; 700 701 /* if the edid is feeling nice enough to provide this info, use it */ 702 if (nv_connector->edid && connector->display_info.bpc) 703 return; 704 705 /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */ 706 if (nv_connector->type == DCB_CONNECTOR_eDP) { 707 connector->display_info.bpc = 6; 708 return; 709 } 710 711 /* we're out of options unless we're LVDS, default to 8bpc */ 712 if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) { 713 connector->display_info.bpc = 8; 714 return; 715 } 716 717 connector->display_info.bpc = 6; 718 719 /* LVDS: panel straps */ 720 if (bios->fp_no_ddc) { 721 if (bios->fp.if_is_24bit) 722 connector->display_info.bpc = 8; 723 return; 724 } 725 726 /* LVDS: DDC panel, need to first determine the number of links to 727 * know which if_is_24bit flag to check... 728 */ 729 if (nv_connector->edid && 730 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG) 731 duallink = ((u8 *)nv_connector->edid)[121] == 2; 732 else 733 duallink = mode->clock >= bios->fp.duallink_transition_clk; 734 735 if ((!duallink && (bios->fp.strapless_is_24bit & 1)) || 736 ( duallink && (bios->fp.strapless_is_24bit & 2))) 737 connector->display_info.bpc = 8; 738 } 739 740 static int 741 nouveau_connector_get_modes(struct drm_connector *connector) 742 { 743 struct drm_device *dev = connector->dev; 744 struct nouveau_drm *drm = nouveau_drm(dev); 745 struct nouveau_connector *nv_connector = nouveau_connector(connector); 746 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 747 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 748 int ret = 0; 749 750 /* destroy the native mode, the attached monitor could have changed. 751 */ 752 if (nv_connector->native_mode) { 753 drm_mode_destroy(dev, nv_connector->native_mode); 754 nv_connector->native_mode = NULL; 755 } 756 757 if (nv_connector->edid) 758 ret = drm_add_edid_modes(connector, nv_connector->edid); 759 else 760 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS && 761 (nv_encoder->dcb->lvdsconf.use_straps_for_mode || 762 drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) { 763 struct drm_display_mode mode; 764 765 nouveau_bios_fp_mode(dev, &mode); 766 nv_connector->native_mode = drm_mode_duplicate(dev, &mode); 767 } 768 769 /* Determine display colour depth for everything except LVDS now, 770 * DP requires this before mode_valid() is called. 771 */ 772 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS) 773 nouveau_connector_detect_depth(connector); 774 775 /* Find the native mode if this is a digital panel, if we didn't 776 * find any modes through DDC previously add the native mode to 777 * the list of modes. 778 */ 779 if (!nv_connector->native_mode) 780 nv_connector->native_mode = 781 nouveau_connector_native_mode(connector); 782 if (ret == 0 && nv_connector->native_mode) { 783 struct drm_display_mode *mode; 784 785 mode = drm_mode_duplicate(dev, nv_connector->native_mode); 786 drm_mode_probed_add(connector, mode); 787 ret = 1; 788 } 789 790 /* Determine LVDS colour depth, must happen after determining 791 * "native" mode as some VBIOS tables require us to use the 792 * pixel clock as part of the lookup... 793 */ 794 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS) 795 nouveau_connector_detect_depth(connector); 796 797 if (nv_encoder->dcb->type == DCB_OUTPUT_TV) 798 ret = get_slave_funcs(encoder)->get_modes(encoder, connector); 799 800 if (nv_connector->type == DCB_CONNECTOR_LVDS || 801 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG || 802 nv_connector->type == DCB_CONNECTOR_eDP) 803 ret += nouveau_connector_scaler_modes_add(connector); 804 805 return ret; 806 } 807 808 static unsigned 809 get_tmds_link_bandwidth(struct drm_connector *connector) 810 { 811 struct nouveau_connector *nv_connector = nouveau_connector(connector); 812 struct nouveau_drm *drm = nouveau_drm(connector->dev); 813 struct dcb_output *dcb = nv_connector->detected_encoder->dcb; 814 815 if (dcb->location != DCB_LOC_ON_CHIP || 816 nv_device(drm->device)->chipset >= 0x46) 817 return 165000; 818 else if (nv_device(drm->device)->chipset >= 0x40) 819 return 155000; 820 else if (nv_device(drm->device)->chipset >= 0x18) 821 return 135000; 822 else 823 return 112000; 824 } 825 826 static int 827 nouveau_connector_mode_valid(struct drm_connector *connector, 828 struct drm_display_mode *mode) 829 { 830 struct nouveau_connector *nv_connector = nouveau_connector(connector); 831 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder; 832 struct drm_encoder *encoder = to_drm_encoder(nv_encoder); 833 unsigned min_clock = 25000, max_clock = min_clock; 834 unsigned clock = mode->clock; 835 836 switch (nv_encoder->dcb->type) { 837 case DCB_OUTPUT_LVDS: 838 if (nv_connector->native_mode && 839 (mode->hdisplay > nv_connector->native_mode->hdisplay || 840 mode->vdisplay > nv_connector->native_mode->vdisplay)) 841 return MODE_PANEL; 842 843 min_clock = 0; 844 max_clock = 400000; 845 break; 846 case DCB_OUTPUT_TMDS: 847 max_clock = get_tmds_link_bandwidth(connector); 848 if (nouveau_duallink && nv_encoder->dcb->duallink_possible) 849 max_clock *= 2; 850 break; 851 case DCB_OUTPUT_ANALOG: 852 max_clock = nv_encoder->dcb->crtconf.maxfreq; 853 if (!max_clock) 854 max_clock = 350000; 855 break; 856 case DCB_OUTPUT_TV: 857 return get_slave_funcs(encoder)->mode_valid(encoder, mode); 858 case DCB_OUTPUT_DP: 859 max_clock = nv_encoder->dp.link_nr; 860 max_clock *= nv_encoder->dp.link_bw; 861 clock = clock * (connector->display_info.bpc * 3) / 10; 862 break; 863 default: 864 BUG_ON(1); 865 return MODE_BAD; 866 } 867 868 if (clock < min_clock) 869 return MODE_CLOCK_LOW; 870 871 if (clock > max_clock) 872 return MODE_CLOCK_HIGH; 873 874 return MODE_OK; 875 } 876 877 static struct drm_encoder * 878 nouveau_connector_best_encoder(struct drm_connector *connector) 879 { 880 struct nouveau_connector *nv_connector = nouveau_connector(connector); 881 882 if (nv_connector->detected_encoder) 883 return to_drm_encoder(nv_connector->detected_encoder); 884 885 return NULL; 886 } 887 888 static const struct drm_connector_helper_funcs 889 nouveau_connector_helper_funcs = { 890 .get_modes = nouveau_connector_get_modes, 891 .mode_valid = nouveau_connector_mode_valid, 892 .best_encoder = nouveau_connector_best_encoder, 893 }; 894 895 static const struct drm_connector_funcs 896 nouveau_connector_funcs = { 897 .dpms = drm_helper_connector_dpms, 898 .save = NULL, 899 .restore = NULL, 900 .detect = nouveau_connector_detect, 901 .destroy = nouveau_connector_destroy, 902 .fill_modes = drm_helper_probe_single_connector_modes, 903 .set_property = nouveau_connector_set_property, 904 .force = nouveau_connector_force 905 }; 906 907 static const struct drm_connector_funcs 908 nouveau_connector_funcs_lvds = { 909 .dpms = drm_helper_connector_dpms, 910 .save = NULL, 911 .restore = NULL, 912 .detect = nouveau_connector_detect_lvds, 913 .destroy = nouveau_connector_destroy, 914 .fill_modes = drm_helper_probe_single_connector_modes, 915 .set_property = nouveau_connector_set_property, 916 .force = nouveau_connector_force 917 }; 918 919 static void 920 nouveau_connector_hotplug_work(struct work_struct *work) 921 { 922 struct nouveau_connector *nv_connector = 923 container_of(work, struct nouveau_connector, hpd_work); 924 struct drm_connector *connector = &nv_connector->base; 925 struct drm_device *dev = connector->dev; 926 struct nouveau_drm *drm = nouveau_drm(dev); 927 struct nouveau_gpio *gpio = nouveau_gpio(drm->device); 928 bool plugged = gpio->get(gpio, 0, nv_connector->hpd.func, 0xff); 929 930 NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", 931 drm_get_connector_name(connector)); 932 933 if (plugged) 934 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON); 935 else 936 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); 937 938 drm_helper_hpd_irq_event(dev); 939 } 940 941 static int 942 nouveau_connector_hotplug(void *data, int index) 943 { 944 struct nouveau_connector *nv_connector = data; 945 schedule_work(&nv_connector->hpd_work); 946 return NVKM_EVENT_KEEP; 947 } 948 949 static int 950 drm_conntype_from_dcb(enum dcb_connector_type dcb) 951 { 952 switch (dcb) { 953 case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA; 954 case DCB_CONNECTOR_TV_0 : 955 case DCB_CONNECTOR_TV_1 : 956 case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV; 957 case DCB_CONNECTOR_DMS59_0 : 958 case DCB_CONNECTOR_DMS59_1 : 959 case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII; 960 case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID; 961 case DCB_CONNECTOR_LVDS : 962 case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS; 963 case DCB_CONNECTOR_DMS59_DP0: 964 case DCB_CONNECTOR_DMS59_DP1: 965 case DCB_CONNECTOR_DP : return DRM_MODE_CONNECTOR_DisplayPort; 966 case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP; 967 case DCB_CONNECTOR_HDMI_0 : 968 case DCB_CONNECTOR_HDMI_1 : 969 case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA; 970 default: 971 break; 972 } 973 974 return DRM_MODE_CONNECTOR_Unknown; 975 } 976 977 struct drm_connector * 978 nouveau_connector_create(struct drm_device *dev, int index) 979 { 980 const struct drm_connector_funcs *funcs = &nouveau_connector_funcs; 981 struct nouveau_drm *drm = nouveau_drm(dev); 982 struct nouveau_gpio *gpio = nouveau_gpio(drm->device); 983 struct nouveau_display *disp = nouveau_display(dev); 984 struct nouveau_connector *nv_connector = NULL; 985 struct drm_connector *connector; 986 int type, ret = 0; 987 bool dummy; 988 989 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 990 nv_connector = nouveau_connector(connector); 991 if (nv_connector->index == index) 992 return connector; 993 } 994 995 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL); 996 if (!nv_connector) 997 return ERR_PTR(-ENOMEM); 998 999 connector = &nv_connector->base; 1000 INIT_WORK(&nv_connector->hpd_work, nouveau_connector_hotplug_work); 1001 nv_connector->index = index; 1002 1003 /* attempt to parse vbios connector type and hotplug gpio */ 1004 nv_connector->dcb = olddcb_conn(dev, index); 1005 if (nv_connector->dcb) { 1006 static const u8 hpd[16] = { 1007 0xff, 0x07, 0x08, 0xff, 0xff, 0x51, 0x52, 0xff, 1008 0xff, 0xff, 0xff, 0xff, 0xff, 0x5e, 0x5f, 0x60, 1009 }; 1010 1011 u32 entry = ROM16(nv_connector->dcb[0]); 1012 if (olddcb_conntab(dev)[3] >= 4) 1013 entry |= (u32)ROM16(nv_connector->dcb[2]) << 16; 1014 1015 ret = gpio->find(gpio, 0, hpd[ffs((entry & 0x07033000) >> 12)], 1016 DCB_GPIO_UNUSED, &nv_connector->hpd); 1017 if (ret) 1018 nv_connector->hpd.func = DCB_GPIO_UNUSED; 1019 1020 if (nv_connector->hpd.func != DCB_GPIO_UNUSED) { 1021 nouveau_event_new(gpio->events, nv_connector->hpd.line, 1022 nouveau_connector_hotplug, 1023 nv_connector, 1024 &nv_connector->hpd_func); 1025 } 1026 1027 nv_connector->type = nv_connector->dcb[0]; 1028 if (drm_conntype_from_dcb(nv_connector->type) == 1029 DRM_MODE_CONNECTOR_Unknown) { 1030 NV_WARN(drm, "unknown connector type %02x\n", 1031 nv_connector->type); 1032 nv_connector->type = DCB_CONNECTOR_NONE; 1033 } 1034 1035 /* Gigabyte NX85T */ 1036 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) { 1037 if (nv_connector->type == DCB_CONNECTOR_HDMI_1) 1038 nv_connector->type = DCB_CONNECTOR_DVI_I; 1039 } 1040 1041 /* Gigabyte GV-NX86T512H */ 1042 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) { 1043 if (nv_connector->type == DCB_CONNECTOR_HDMI_1) 1044 nv_connector->type = DCB_CONNECTOR_DVI_I; 1045 } 1046 } else { 1047 nv_connector->type = DCB_CONNECTOR_NONE; 1048 nv_connector->hpd.func = DCB_GPIO_UNUSED; 1049 } 1050 1051 /* no vbios data, or an unknown dcb connector type - attempt to 1052 * figure out something suitable ourselves 1053 */ 1054 if (nv_connector->type == DCB_CONNECTOR_NONE) { 1055 struct nouveau_drm *drm = nouveau_drm(dev); 1056 struct dcb_table *dcbt = &drm->vbios.dcb; 1057 u32 encoders = 0; 1058 int i; 1059 1060 for (i = 0; i < dcbt->entries; i++) { 1061 if (dcbt->entry[i].connector == nv_connector->index) 1062 encoders |= (1 << dcbt->entry[i].type); 1063 } 1064 1065 if (encoders & (1 << DCB_OUTPUT_DP)) { 1066 if (encoders & (1 << DCB_OUTPUT_TMDS)) 1067 nv_connector->type = DCB_CONNECTOR_DP; 1068 else 1069 nv_connector->type = DCB_CONNECTOR_eDP; 1070 } else 1071 if (encoders & (1 << DCB_OUTPUT_TMDS)) { 1072 if (encoders & (1 << DCB_OUTPUT_ANALOG)) 1073 nv_connector->type = DCB_CONNECTOR_DVI_I; 1074 else 1075 nv_connector->type = DCB_CONNECTOR_DVI_D; 1076 } else 1077 if (encoders & (1 << DCB_OUTPUT_ANALOG)) { 1078 nv_connector->type = DCB_CONNECTOR_VGA; 1079 } else 1080 if (encoders & (1 << DCB_OUTPUT_LVDS)) { 1081 nv_connector->type = DCB_CONNECTOR_LVDS; 1082 } else 1083 if (encoders & (1 << DCB_OUTPUT_TV)) { 1084 nv_connector->type = DCB_CONNECTOR_TV_0; 1085 } 1086 } 1087 1088 type = drm_conntype_from_dcb(nv_connector->type); 1089 if (type == DRM_MODE_CONNECTOR_LVDS) { 1090 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy); 1091 if (ret) { 1092 NV_ERROR(drm, "Error parsing LVDS table, disabling\n"); 1093 kfree(nv_connector); 1094 return ERR_PTR(ret); 1095 } 1096 1097 funcs = &nouveau_connector_funcs_lvds; 1098 } else { 1099 funcs = &nouveau_connector_funcs; 1100 } 1101 1102 /* defaults, will get overridden in detect() */ 1103 connector->interlace_allowed = false; 1104 connector->doublescan_allowed = false; 1105 1106 drm_connector_init(dev, connector, funcs, type); 1107 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs); 1108 1109 /* Init DVI-I specific properties */ 1110 if (nv_connector->type == DCB_CONNECTOR_DVI_I) 1111 drm_object_attach_property(&connector->base, dev->mode_config.dvi_i_subconnector_property, 0); 1112 1113 /* Add overscan compensation options to digital outputs */ 1114 if (disp->underscan_property && 1115 (type == DRM_MODE_CONNECTOR_DVID || 1116 type == DRM_MODE_CONNECTOR_DVII || 1117 type == DRM_MODE_CONNECTOR_HDMIA || 1118 type == DRM_MODE_CONNECTOR_DisplayPort)) { 1119 drm_object_attach_property(&connector->base, 1120 disp->underscan_property, 1121 UNDERSCAN_OFF); 1122 drm_object_attach_property(&connector->base, 1123 disp->underscan_hborder_property, 1124 0); 1125 drm_object_attach_property(&connector->base, 1126 disp->underscan_vborder_property, 1127 0); 1128 } 1129 1130 /* Add hue and saturation options */ 1131 if (disp->vibrant_hue_property) 1132 drm_object_attach_property(&connector->base, 1133 disp->vibrant_hue_property, 1134 90); 1135 if (disp->color_vibrance_property) 1136 drm_object_attach_property(&connector->base, 1137 disp->color_vibrance_property, 1138 150); 1139 1140 switch (nv_connector->type) { 1141 case DCB_CONNECTOR_VGA: 1142 if (nv_device(drm->device)->card_type >= NV_50) { 1143 drm_object_attach_property(&connector->base, 1144 dev->mode_config.scaling_mode_property, 1145 nv_connector->scaling_mode); 1146 } 1147 /* fall-through */ 1148 case DCB_CONNECTOR_TV_0: 1149 case DCB_CONNECTOR_TV_1: 1150 case DCB_CONNECTOR_TV_3: 1151 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE; 1152 break; 1153 default: 1154 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN; 1155 1156 drm_object_attach_property(&connector->base, 1157 dev->mode_config.scaling_mode_property, 1158 nv_connector->scaling_mode); 1159 if (disp->dithering_mode) { 1160 nv_connector->dithering_mode = DITHERING_MODE_AUTO; 1161 drm_object_attach_property(&connector->base, 1162 disp->dithering_mode, 1163 nv_connector->dithering_mode); 1164 } 1165 if (disp->dithering_depth) { 1166 nv_connector->dithering_depth = DITHERING_DEPTH_AUTO; 1167 drm_object_attach_property(&connector->base, 1168 disp->dithering_depth, 1169 nv_connector->dithering_depth); 1170 } 1171 break; 1172 } 1173 1174 connector->polled = DRM_CONNECTOR_POLL_CONNECT; 1175 if (nv_connector->hpd.func != DCB_GPIO_UNUSED) 1176 connector->polled = DRM_CONNECTOR_POLL_HPD; 1177 1178 drm_sysfs_connector_add(connector); 1179 return connector; 1180 } 1181
Indexes created Sun Oct 19 19:09:49 GMT 2025