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