drivers/gpu/drm/nouveau/nouveau_connector.c

   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 "drmP.h"
  30 #include "drm_edid.h"
  31 #include "drm_crtc_helper.h"
  32
  33 #include "nouveau_reg.h"
  34 #include "nouveau_drv.h"
  35 #include "nouveau_encoder.h"
  36 #include "nouveau_crtc.h"
  37 #include "nouveau_connector.h"
  38 #include "nouveau_hw.h"
  39
  40 static inline struct drm_encoder_slave_funcs *
  41 get_slave_funcs(struct nouveau_encoder *enc)
  42 {
  43         return to_encoder_slave(to_drm_encoder(enc))->slave_funcs;
  44 }
  45
  46 static struct nouveau_encoder *
  47 find_encoder_by_type(struct drm_connector *connector, int type)
  48 {
  49         struct drm_device *dev = connector->dev;
  50         struct nouveau_encoder *nv_encoder;
  51         struct drm_mode_object *obj;
  52         int i, id;
  53
  54         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
  55                 id = connector->encoder_ids[i];
  56                 if (!id)
  57                         break;
  58
  59                 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
  60                 if (!obj)
  61                         continue;
  62                 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
  63
  64                 if (type == OUTPUT_ANY || nv_encoder->dcb->type == type)
  65                         return nv_encoder;
  66         }
  67
  68         return NULL;
  69 }
  70
  71 struct nouveau_connector *
  72 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
  73 {
  74         struct drm_device *dev = to_drm_encoder(encoder)->dev;
  75         struct drm_connector *drm_connector;
  76
  77         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
  78                 if (drm_connector->encoder == to_drm_encoder(encoder))
  79                         return nouveau_connector(drm_connector);
  80         }
  81
  82         return NULL;
  83 }
  84
  85
  86 static void
  87 nouveau_connector_destroy(struct drm_connector *drm_connector)
  88 {
  89         struct nouveau_connector *nv_connector =
  90                 nouveau_connector(drm_connector);
  91         struct drm_device *dev;
  92
  93         if (!nv_connector)
  94                 return;
  95
  96         dev = nv_connector->base.dev;
  97         NV_DEBUG_KMS(dev, "\n");
  98
  99         kfree(nv_connector->edid);
 100         drm_sysfs_connector_remove(drm_connector);
 101         drm_connector_cleanup(drm_connector);
 102         kfree(drm_connector);
 103 }
 104
 105 static struct nouveau_i2c_chan *
 106 nouveau_connector_ddc_detect(struct drm_connector *connector,
 107                              struct nouveau_encoder **pnv_encoder)
 108 {
 109         struct drm_device *dev = connector->dev;
 110         int i;
 111
 112         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
 113                 struct nouveau_i2c_chan *i2c;
 114                 struct nouveau_encoder *nv_encoder;
 115                 struct drm_mode_object *obj;
 116                 int id;
 117
 118                 id = connector->encoder_ids[i];
 119                 if (!id)
 120                         break;
 121
 122                 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
 123                 if (!obj)
 124                         continue;
 125                 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
 126                 i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
 127
 128                 if (i2c && nouveau_probe_i2c_addr(i2c, 0x50)) {
 129                         *pnv_encoder = nv_encoder;
 130                         return i2c;
 131                 }
 132         }
 133
 134         return NULL;
 135 }
 136
 137 static void
 138 nouveau_connector_set_encoder(struct drm_connector *connector,
 139                               struct nouveau_encoder *nv_encoder)
 140 {
 141         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 142         struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
 143         struct drm_device *dev = connector->dev;
 144
 145         if (nv_connector->detected_encoder == nv_encoder)
 146                 return;
 147         nv_connector->detected_encoder = nv_encoder;
 148
 149         if (nv_encoder->dcb->type == OUTPUT_LVDS ||
 150             nv_encoder->dcb->type == OUTPUT_TMDS) {
 151                 connector->doublescan_allowed = false;
 152                 connector->interlace_allowed = false;
 153         } else {
 154                 connector->doublescan_allowed = true;
 155                 if (dev_priv->card_type == NV_20 ||
 156                    (dev_priv->card_type == NV_10 &&
 157                     (dev->pci_device & 0x0ff0) != 0x0100 &&
 158                     (dev->pci_device & 0x0ff0) != 0x0150))
 159                         /* HW is broken */
 160                         connector->interlace_allowed = false;
 161                 else
 162                         connector->interlace_allowed = true;
 163         }
 164
 165         if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
 166                 drm_connector_property_set_value(connector,
 167                         dev->mode_config.dvi_i_subconnector_property,
 168                         nv_encoder->dcb->type == OUTPUT_TMDS ?
 169                         DRM_MODE_SUBCONNECTOR_DVID :
 170                         DRM_MODE_SUBCONNECTOR_DVIA);
 171         }
 172 }
 173
 174 static enum drm_connector_status
 175 nouveau_connector_detect(struct drm_connector *connector)
 176 {
 177         struct drm_device *dev = connector->dev;
 178         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 179         struct nouveau_encoder *nv_encoder = NULL;
 180         struct nouveau_i2c_chan *i2c;
 181         int type;
 182
 183         /* Cleanup the previous EDID block. */
 184         if (nv_connector->edid) {
 185                 drm_mode_connector_update_edid_property(connector, NULL);
 186                 kfree(nv_connector->edid);
 187                 nv_connector->edid = NULL;
 188         }
 189
 190         i2c = nouveau_connector_ddc_detect(connector, &nv_encoder);
 191         if (i2c) {
 192                 nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
 193                 drm_mode_connector_update_edid_property(connector,
 194                                                         nv_connector->edid);
 195                 if (!nv_connector->edid) {
 196                         NV_ERROR(dev, "DDC responded, but no EDID for %s\n",
 197                                  drm_get_connector_name(connector));
 198                         goto detect_analog;
 199                 }
 200
 201                 if (nv_encoder->dcb->type == OUTPUT_DP &&
 202                     !nouveau_dp_detect(to_drm_encoder(nv_encoder))) {
 203                         NV_ERROR(dev, "Detected %s, but failed init\n",
 204                                  drm_get_connector_name(connector));
 205                         return connector_status_disconnected;
 206                 }
 207
 208                 /* Override encoder type for DVI-I based on whether EDID
 209                  * says the display is digital or analog, both use the
 210                  * same i2c channel so the value returned from ddc_detect
 211                  * isn't necessarily correct.
 212                  */
 213                 if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
 214                         if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
 215                                 type = OUTPUT_TMDS;
 216                         else
 217                                 type = OUTPUT_ANALOG;
 218
 219                         nv_encoder = find_encoder_by_type(connector, type);
 220                         if (!nv_encoder) {
 221                                 NV_ERROR(dev, "Detected %d encoder on %s, "
 222                                               "but no object!\n", type,
 223                                          drm_get_connector_name(connector));
 224                                 return connector_status_disconnected;
 225                         }
 226                 }
 227
 228                 nouveau_connector_set_encoder(connector, nv_encoder);
 229                 return connector_status_connected;
 230         }
 231
 232 detect_analog:
 233         nv_encoder = find_encoder_by_type(connector, OUTPUT_ANALOG);
 234         if (!nv_encoder && !nouveau_tv_disable)
 235                 nv_encoder = find_encoder_by_type(connector, OUTPUT_TV);
 236         if (nv_encoder) {
 237                 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 238                 struct drm_encoder_helper_funcs *helper =
 239                                                 encoder->helper_private;
 240
 241                 if (helper->detect(encoder, connector) ==
 242                                                 connector_status_connected) {
 243                         nouveau_connector_set_encoder(connector, nv_encoder);
 244                         return connector_status_connected;
 245                 }
 246
 247         }
 248
 249         return connector_status_disconnected;
 250 }
 251
 252 static enum drm_connector_status
 253 nouveau_connector_detect_lvds(struct drm_connector *connector)
 254 {
 255         struct drm_device *dev = connector->dev;
 256         struct drm_nouveau_private *dev_priv = dev->dev_private;
 257         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 258         struct nouveau_encoder *nv_encoder = NULL;
 259         enum drm_connector_status status = connector_status_disconnected;
 260
 261         /* Cleanup the previous EDID block. */
 262         if (nv_connector->edid) {
 263                 drm_mode_connector_update_edid_property(connector, NULL);
 264                 kfree(nv_connector->edid);
 265                 nv_connector->edid = NULL;
 266         }
 267
 268         nv_encoder = find_encoder_by_type(connector, OUTPUT_LVDS);
 269         if (!nv_encoder)
 270                 return connector_status_disconnected;
 271
 272         /* Try retrieving EDID via DDC */
 273         if (!dev_priv->vbios.fp_no_ddc) {
 274                 status = nouveau_connector_detect(connector);
 275                 if (status == connector_status_connected)
 276                         goto out;
 277         }
 278
 279         /* On some laptops (Sony, i'm looking at you) there appears to
 280          * be no direct way of accessing the panel's EDID.  The only
 281          * option available to us appears to be to ask ACPI for help..
 282          *
 283          * It's important this check's before trying straps, one of the
 284          * said manufacturer's laptops are configured in such a way
 285          * the nouveau decides an entry in the VBIOS FP mode table is
 286          * valid - it's not (rh#613284)
 287          */
 288         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
 289                 if (!nouveau_acpi_edid(dev, connector)) {
 290                         status = connector_status_connected;
 291                         goto out;
 292                 }
 293         }
 294
 295         /* If no EDID found above, and the VBIOS indicates a hardcoded
 296          * modeline is avalilable for the panel, set it as the panel's
 297          * native mode and exit.
 298          */
 299         if (nouveau_bios_fp_mode(dev, NULL) && (dev_priv->vbios.fp_no_ddc ||
 300             nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
 301                 status = connector_status_connected;
 302                 goto out;
 303         }
 304
 305         /* Still nothing, some VBIOS images have a hardcoded EDID block
 306          * stored for the panel stored in them.
 307          */
 308         if (!dev_priv->vbios.fp_no_ddc) {
 309                 struct edid *edid =
 310                         (struct edid *)nouveau_bios_embedded_edid(dev);
 311                 if (edid) {
 312                         nv_connector->edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
 313                         *(nv_connector->edid) = *edid;
 314                         status = connector_status_connected;
 315                 }
 316         }
 317
 318 out:
 319 #if defined(CONFIG_ACPI_BUTTON) || \
 320         (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
 321         if (status == connector_status_connected &&
 322             !nouveau_ignorelid && !acpi_lid_open())
 323                 status = connector_status_unknown;
 324 #endif
 325
 326         drm_mode_connector_update_edid_property(connector, nv_connector->edid);
 327         nouveau_connector_set_encoder(connector, nv_encoder);
 328         return status;
 329 }
 330
 331 static void
 332 nouveau_connector_force(struct drm_connector *connector)
 333 {
 334         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 335         struct nouveau_encoder *nv_encoder;
 336         int type;
 337
 338         if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
 339                 if (connector->force == DRM_FORCE_ON_DIGITAL)
 340                         type = OUTPUT_TMDS;
 341                 else
 342                         type = OUTPUT_ANALOG;
 343         } else
 344                 type = OUTPUT_ANY;
 345
 346         nv_encoder = find_encoder_by_type(connector, type);
 347         if (!nv_encoder) {
 348                 NV_ERROR(connector->dev, "can't find encoder to force %s on!\n",
 349                          drm_get_connector_name(connector));
 350                 connector->status = connector_status_disconnected;
 351                 return;
 352         }
 353
 354         nouveau_connector_set_encoder(connector, nv_encoder);
 355 }
 356
 357 static int
 358 nouveau_connector_set_property(struct drm_connector *connector,
 359                                struct drm_property *property, uint64_t value)
 360 {
 361         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 362         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 363         struct drm_device *dev = connector->dev;
 364         int ret;
 365
 366         /* Scaling mode */
 367         if (property == dev->mode_config.scaling_mode_property) {
 368                 struct nouveau_crtc *nv_crtc = NULL;
 369                 bool modeset = false;
 370
 371                 switch (value) {
 372                 case DRM_MODE_SCALE_NONE:
 373                 case DRM_MODE_SCALE_FULLSCREEN:
 374                 case DRM_MODE_SCALE_CENTER:
 375                 case DRM_MODE_SCALE_ASPECT:
 376                         break;
 377                 default:
 378                         return -EINVAL;
 379                 }
 380
 381                 /* LVDS always needs gpu scaling */
 382                 if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS &&
 383                     value == DRM_MODE_SCALE_NONE)
 384                         return -EINVAL;
 385
 386                 /* Changing between GPU and panel scaling requires a full
 387                  * modeset
 388                  */
 389                 if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) ||
 390                     (value == DRM_MODE_SCALE_NONE))
 391                         modeset = true;
 392                 nv_connector->scaling_mode = value;
 393
 394                 if (connector->encoder && connector->encoder->crtc)
 395                         nv_crtc = nouveau_crtc(connector->encoder->crtc);
 396                 if (!nv_crtc)
 397                         return 0;
 398
 399                 if (modeset || !nv_crtc->set_scale) {
 400                         ret = drm_crtc_helper_set_mode(&nv_crtc->base,
 401                                                         &nv_crtc->base.mode,
 402                                                         nv_crtc->base.x,
 403                                                         nv_crtc->base.y, NULL);
 404                         if (!ret)
 405                                 return -EINVAL;
 406                 } else {
 407                         ret = nv_crtc->set_scale(nv_crtc, value, true);
 408                         if (ret)
 409                                 return ret;
 410                 }
 411
 412                 return 0;
 413         }
 414
 415         /* Dithering */
 416         if (property == dev->mode_config.dithering_mode_property) {
 417                 struct nouveau_crtc *nv_crtc = NULL;
 418
 419                 if (value == DRM_MODE_DITHERING_ON)
 420                         nv_connector->use_dithering = true;
 421                 else
 422                         nv_connector->use_dithering = false;
 423
 424                 if (connector->encoder && connector->encoder->crtc)
 425                         nv_crtc = nouveau_crtc(connector->encoder->crtc);
 426
 427                 if (!nv_crtc || !nv_crtc->set_dither)
 428                         return 0;
 429
 430                 return nv_crtc->set_dither(nv_crtc, nv_connector->use_dithering,
 431                                            true);
 432         }
 433
 434         if (nv_encoder && nv_encoder->dcb->type == OUTPUT_TV)
 435                 return get_slave_funcs(nv_encoder)->
 436                         set_property(to_drm_encoder(nv_encoder), connector, property, value);
 437
 438         return -EINVAL;
 439 }
 440
 441 static struct drm_display_mode *
 442 nouveau_connector_native_mode(struct drm_connector *connector)
 443 {
 444         struct drm_connector_helper_funcs *helper = connector->helper_private;
 445         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 446         struct drm_device *dev = connector->dev;
 447         struct drm_display_mode *mode, *largest = NULL;
 448         int high_w = 0, high_h = 0, high_v = 0;
 449
 450         list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
 451                 if (helper->mode_valid(connector, mode) != MODE_OK ||
 452                     (mode->flags & DRM_MODE_FLAG_INTERLACE))
 453                         continue;
 454
 455                 /* Use preferred mode if there is one.. */
 456                 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
 457                         NV_DEBUG_KMS(dev, "native mode from preferred\n");
 458                         return drm_mode_duplicate(dev, mode);
 459                 }
 460
 461                 /* Otherwise, take the resolution with the largest width, then
 462                  * height, then vertical refresh
 463                  */
 464                 if (mode->hdisplay < high_w)
 465                         continue;
 466
 467                 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
 468                         continue;
 469
 470                 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
 471                     mode->vrefresh < high_v)
 472                         continue;
 473
 474                 high_w = mode->hdisplay;
 475                 high_h = mode->vdisplay;
 476                 high_v = mode->vrefresh;
 477                 largest = mode;
 478         }
 479
 480         NV_DEBUG_KMS(dev, "native mode from largest: %dx%d@%d\n",
 481                       high_w, high_h, high_v);
 482         return largest ? drm_mode_duplicate(dev, largest) : NULL;
 483 }
 484
 485 struct moderec {
 486         int hdisplay;
 487         int vdisplay;
 488 };
 489
 490 static struct moderec scaler_modes[] = {
 491         { 1920, 1200 },
 492         { 1920, 1080 },
 493         { 1680, 1050 },
 494         { 1600, 1200 },
 495         { 1400, 1050 },
 496         { 1280, 1024 },
 497         { 1280, 960 },
 498         { 1152, 864 },
 499         { 1024, 768 },
 500         { 800, 600 },
 501         { 720, 400 },
 502         { 640, 480 },
 503         { 640, 400 },
 504         { 640, 350 },
 505         {}
 506 };
 507
 508 static int
 509 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 510 {
 511         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 512         struct drm_display_mode *native = nv_connector->native_mode, *m;
 513         struct drm_device *dev = connector->dev;
 514         struct moderec *mode = &scaler_modes[0];
 515         int modes = 0;
 516
 517         if (!native)
 518                 return 0;
 519
 520         while (mode->hdisplay) {
 521                 if (mode->hdisplay <= native->hdisplay &&
 522                     mode->vdisplay <= native->vdisplay) {
 523                         m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
 524                                          drm_mode_vrefresh(native), false,
 525                                          false, false);
 526                         if (!m)
 527                                 continue;
 528
 529                         m->type |= DRM_MODE_TYPE_DRIVER;
 530
 531                         drm_mode_probed_add(connector, m);
 532                         modes++;
 533                 }
 534
 535                 mode++;
 536         }
 537
 538         return modes;
 539 }
 540
 541 static int
 542 nouveau_connector_get_modes(struct drm_connector *connector)
 543 {
 544         struct drm_device *dev = connector->dev;
 545         struct drm_nouveau_private *dev_priv = dev->dev_private;
 546         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 547         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 548         int ret = 0;
 549
 550         /* destroy the native mode, the attached monitor could have changed.
 551          */
 552         if (nv_connector->native_mode) {
 553                 drm_mode_destroy(dev, nv_connector->native_mode);
 554                 nv_connector->native_mode = NULL;
 555         }
 556
 557         if (nv_connector->edid)
 558                 ret = drm_add_edid_modes(connector, nv_connector->edid);
 559         else
 560         if (nv_encoder->dcb->type == OUTPUT_LVDS &&
 561             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
 562              dev_priv->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
 563                 nv_connector->native_mode = drm_mode_create(dev);
 564                 nouveau_bios_fp_mode(dev, nv_connector->native_mode);
 565         }
 566
 567         /* Find the native mode if this is a digital panel, if we didn't
 568          * find any modes through DDC previously add the native mode to
 569          * the list of modes.
 570          */
 571         if (!nv_connector->native_mode)
 572                 nv_connector->native_mode =
 573                         nouveau_connector_native_mode(connector);
 574         if (ret == 0 && nv_connector->native_mode) {
 575                 struct drm_display_mode *mode;
 576
 577                 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
 578                 drm_mode_probed_add(connector, mode);
 579                 ret = 1;
 580         }
 581
 582         if (nv_encoder->dcb->type == OUTPUT_TV)
 583                 ret = get_slave_funcs(nv_encoder)->
 584                         get_modes(to_drm_encoder(nv_encoder), connector);
 585
 586         if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS ||
 587             nv_connector->dcb->type == DCB_CONNECTOR_eDP)
 588                 ret += nouveau_connector_scaler_modes_add(connector);
 589
 590         return ret;
 591 }
 592
 593 static int
 594 nouveau_connector_mode_valid(struct drm_connector *connector,
 595                              struct drm_display_mode *mode)
 596 {
 597         struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
 598         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 599         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 600         unsigned min_clock = 25000, max_clock = min_clock;
 601         unsigned clock = mode->clock;
 602
 603         switch (nv_encoder->dcb->type) {
 604         case OUTPUT_LVDS:
 605                 if (nv_connector->native_mode &&
 606                     (mode->hdisplay > nv_connector->native_mode->hdisplay ||
 607                      mode->vdisplay > nv_connector->native_mode->vdisplay))
 608                         return MODE_PANEL;
 609
 610                 min_clock = 0;
 611                 max_clock = 400000;
 612                 break;
 613         case OUTPUT_TMDS:
 614                 if ((dev_priv->card_type >= NV_50 && !nouveau_duallink) ||
 615                     !nv_encoder->dcb->duallink_possible)
 616                         max_clock = 165000;
 617                 else
 618                         max_clock = 330000;
 619                 break;
 620         case OUTPUT_ANALOG:
 621                 max_clock = nv_encoder->dcb->crtconf.maxfreq;
 622                 if (!max_clock)
 623                         max_clock = 350000;
 624                 break;
 625         case OUTPUT_TV:
 626                 return get_slave_funcs(nv_encoder)->
 627                         mode_valid(to_drm_encoder(nv_encoder), mode);
 628         case OUTPUT_DP:
 629                 if (nv_encoder->dp.link_bw == DP_LINK_BW_2_7)
 630                         max_clock = nv_encoder->dp.link_nr * 270000;
 631                 else
 632                         max_clock = nv_encoder->dp.link_nr * 162000;
 633
 634                 clock *= 3;
 635                 break;
 636         default:
 637                 BUG_ON(1);
 638                 return MODE_BAD;
 639         }
 640
 641         if (clock < min_clock)
 642                 return MODE_CLOCK_LOW;
 643
 644         if (clock > max_clock)
 645                 return MODE_CLOCK_HIGH;
 646
 647         return MODE_OK;
 648 }
 649
 650 static struct drm_encoder *
 651 nouveau_connector_best_encoder(struct drm_connector *connector)
 652 {
 653         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 654
 655         if (nv_connector->detected_encoder)
 656                 return to_drm_encoder(nv_connector->detected_encoder);
 657
 658         return NULL;
 659 }
 660
 661 void
 662 nouveau_connector_set_polling(struct drm_connector *connector)
 663 {
 664         struct drm_device *dev = connector->dev;
 665         struct drm_nouveau_private *dev_priv = dev->dev_private;
 666         struct drm_crtc *crtc;
 667         bool spare_crtc = false;
 668
 669         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 670                 spare_crtc |= !crtc->enabled;
 671
 672         connector->polled = 0;
 673
 674         switch (connector->connector_type) {
 675         case DRM_MODE_CONNECTOR_VGA:
 676         case DRM_MODE_CONNECTOR_TV:
 677                 if (dev_priv->card_type >= NV_50 ||
 678                     (nv_gf4_disp_arch(dev) && spare_crtc))
 679                         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
 680                 break;
 681
 682         case DRM_MODE_CONNECTOR_DVII:
 683         case DRM_MODE_CONNECTOR_DVID:
 684         case DRM_MODE_CONNECTOR_HDMIA:
 685         case DRM_MODE_CONNECTOR_DisplayPort:
 686         case DRM_MODE_CONNECTOR_eDP:
 687                 if (dev_priv->card_type >= NV_50)
 688                         connector->polled = DRM_CONNECTOR_POLL_HPD;
 689                 else if (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
 690                          spare_crtc)
 691                         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
 692                 break;
 693
 694         default:
 695                 break;
 696         }
 697 }
 698
 699 static const struct drm_connector_helper_funcs
 700 nouveau_connector_helper_funcs = {
 701         .get_modes = nouveau_connector_get_modes,
 702         .mode_valid = nouveau_connector_mode_valid,
 703         .best_encoder = nouveau_connector_best_encoder,
 704 };
 705
 706 static const struct drm_connector_funcs
 707 nouveau_connector_funcs = {
 708         .dpms = drm_helper_connector_dpms,
 709         .save = NULL,
 710         .restore = NULL,
 711         .detect = nouveau_connector_detect,
 712         .destroy = nouveau_connector_destroy,
 713         .fill_modes = drm_helper_probe_single_connector_modes,
 714         .set_property = nouveau_connector_set_property,
 715         .force = nouveau_connector_force
 716 };
 717
 718 static const struct drm_connector_funcs
 719 nouveau_connector_funcs_lvds = {
 720         .dpms = drm_helper_connector_dpms,
 721         .save = NULL,
 722         .restore = NULL,
 723         .detect = nouveau_connector_detect_lvds,
 724         .destroy = nouveau_connector_destroy,
 725         .fill_modes = drm_helper_probe_single_connector_modes,
 726         .set_property = nouveau_connector_set_property,
 727         .force = nouveau_connector_force
 728 };
 729
 730 struct drm_connector *
 731 nouveau_connector_create(struct drm_device *dev, int index)
 732 {
 733         const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
 734         struct drm_nouveau_private *dev_priv = dev->dev_private;
 735         struct nouveau_connector *nv_connector = NULL;
 736         struct dcb_connector_table_entry *dcb = NULL;
 737         struct drm_connector *connector;
 738         int type, ret = 0;
 739
 740         NV_DEBUG_KMS(dev, "\n");
 741
 742         if (index >= dev_priv->vbios.dcb.connector.entries)
 743                 return ERR_PTR(-EINVAL);
 744
 745         dcb = &dev_priv->vbios.dcb.connector.entry[index];
 746         if (dcb->drm)
 747                 return dcb->drm;
 748
 749         switch (dcb->type) {
 750         case DCB_CONNECTOR_VGA:
 751                 type = DRM_MODE_CONNECTOR_VGA;
 752                 break;
 753         case DCB_CONNECTOR_TV_0:
 754         case DCB_CONNECTOR_TV_1:
 755         case DCB_CONNECTOR_TV_3:
 756                 type = DRM_MODE_CONNECTOR_TV;
 757                 break;
 758         case DCB_CONNECTOR_DVI_I:
 759                 type = DRM_MODE_CONNECTOR_DVII;
 760                 break;
 761         case DCB_CONNECTOR_DVI_D:
 762                 type = DRM_MODE_CONNECTOR_DVID;
 763                 break;
 764         case DCB_CONNECTOR_HDMI_0:
 765         case DCB_CONNECTOR_HDMI_1:
 766                 type = DRM_MODE_CONNECTOR_HDMIA;
 767                 break;
 768         case DCB_CONNECTOR_LVDS:
 769                 type = DRM_MODE_CONNECTOR_LVDS;
 770                 funcs = &nouveau_connector_funcs_lvds;
 771                 break;
 772         case DCB_CONNECTOR_DP:
 773                 type = DRM_MODE_CONNECTOR_DisplayPort;
 774                 break;
 775         case DCB_CONNECTOR_eDP:
 776                 type = DRM_MODE_CONNECTOR_eDP;
 777                 break;
 778         default:
 779                 NV_ERROR(dev, "unknown connector type: 0x%02x!!\n", dcb->type);
 780                 return ERR_PTR(-EINVAL);
 781         }
 782
 783         nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
 784         if (!nv_connector)
 785                 return ERR_PTR(-ENOMEM);
 786         nv_connector->dcb = dcb;
 787         connector = &nv_connector->base;
 788
 789         /* defaults, will get overridden in detect() */
 790         connector->interlace_allowed = false;
 791         connector->doublescan_allowed = false;
 792
 793         drm_connector_init(dev, connector, funcs, type);
 794         drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
 795
 796         /* Check if we need dithering enabled */
 797         if (dcb->type == DCB_CONNECTOR_LVDS) {
 798                 bool dummy, is_24bit = false;
 799
 800                 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &is_24bit);
 801                 if (ret) {
 802                         NV_ERROR(dev, "Error parsing LVDS table, disabling "
 803                                  "LVDS\n");
 804                         goto fail;
 805                 }
 806
 807                 nv_connector->use_dithering = !is_24bit;
 808         }
 809
 810         /* Init DVI-I specific properties */
 811         if (dcb->type == DCB_CONNECTOR_DVI_I) {
 812                 drm_mode_create_dvi_i_properties(dev);
 813                 drm_connector_attach_property(connector, dev->mode_config.dvi_i_subconnector_property, 0);
 814                 drm_connector_attach_property(connector, dev->mode_config.dvi_i_select_subconnector_property, 0);
 815         }
 816
 817         switch (dcb->type) {
 818         case DCB_CONNECTOR_VGA:
 819                 if (dev_priv->card_type >= NV_50) {
 820                         drm_connector_attach_property(connector,
 821                                         dev->mode_config.scaling_mode_property,
 822                                         nv_connector->scaling_mode);
 823                 }
 824                 /* fall-through */
 825         case DCB_CONNECTOR_TV_0:
 826         case DCB_CONNECTOR_TV_1:
 827         case DCB_CONNECTOR_TV_3:
 828                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
 829                 break;
 830         default:
 831                 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
 832
 833                 drm_connector_attach_property(connector,
 834                                 dev->mode_config.scaling_mode_property,
 835                                 nv_connector->scaling_mode);
 836                 drm_connector_attach_property(connector,
 837                                 dev->mode_config.dithering_mode_property,
 838                                 nv_connector->use_dithering ?
 839                                 DRM_MODE_DITHERING_ON : DRM_MODE_DITHERING_OFF);
 840                 break;
 841         }
 842
 843         nouveau_connector_set_polling(connector);
 844
 845         drm_sysfs_connector_add(connector);
 846         dcb->drm = connector;
 847         return dcb->drm;
 848
 849 fail:
 850         drm_connector_cleanup(connector);
 851         kfree(connector);
 852         return ERR_PTR(ret);
 853
 854 }