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 void
 106 nouveau_connector_ddc_prepare(struct drm_connector *connector, int *flags)
 107 {
 108         struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
 109
 110         if (dev_priv->card_type >= NV_50)
 111                 return;
 112
 113         *flags = 0;
 114         if (NVLockVgaCrtcs(dev_priv->dev, false))
 115                 *flags |= 1;
 116         if (nv_heads_tied(dev_priv->dev))
 117                 *flags |= 2;
 118
 119         if (*flags & 2)
 120                 NVSetOwner(dev_priv->dev, 0); /* necessary? */
 121 }
 122
 123 static void
 124 nouveau_connector_ddc_finish(struct drm_connector *connector, int flags)
 125 {
 126         struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
 127
 128         if (dev_priv->card_type >= NV_50)
 129                 return;
 130
 131         if (flags & 2)
 132                 NVSetOwner(dev_priv->dev, 4);
 133         if (flags & 1)
 134                 NVLockVgaCrtcs(dev_priv->dev, true);
 135 }
 136
 137 static struct nouveau_i2c_chan *
 138 nouveau_connector_ddc_detect(struct drm_connector *connector,
 139                              struct nouveau_encoder **pnv_encoder)
 140 {
 141         struct drm_device *dev = connector->dev;
 142         int ret, flags, i;
 143
 144         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
 145                 struct nouveau_i2c_chan *i2c;
 146                 struct nouveau_encoder *nv_encoder;
 147                 struct drm_mode_object *obj;
 148                 int id;
 149
 150                 id = connector->encoder_ids[i];
 151                 if (!id)
 152                         break;
 153
 154                 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
 155                 if (!obj)
 156                         continue;
 157                 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
 158
 159                 if (nv_encoder->dcb->i2c_index < 0xf)
 160                         i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
 161                 if (!i2c)
 162                         continue;
 163
 164                 nouveau_connector_ddc_prepare(connector, &flags);
 165                 ret = nouveau_probe_i2c_addr(i2c, 0x50);
 166                 nouveau_connector_ddc_finish(connector, flags);
 167
 168                 if (ret) {
 169                         *pnv_encoder = nv_encoder;
 170                         return i2c;
 171                 }
 172         }
 173
 174         return NULL;
 175 }
 176
 177 static void
 178 nouveau_connector_set_encoder(struct drm_connector *connector,
 179                               struct nouveau_encoder *nv_encoder)
 180 {
 181         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 182         struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
 183         struct drm_device *dev = connector->dev;
 184
 185         if (nv_connector->detected_encoder == nv_encoder)
 186                 return;
 187         nv_connector->detected_encoder = nv_encoder;
 188
 189         if (nv_encoder->dcb->type == OUTPUT_LVDS ||
 190             nv_encoder->dcb->type == OUTPUT_TMDS) {
 191                 connector->doublescan_allowed = false;
 192                 connector->interlace_allowed = false;
 193         } else {
 194                 connector->doublescan_allowed = true;
 195                 if (dev_priv->card_type == NV_20 ||
 196                    (dev_priv->card_type == NV_10 &&
 197                     (dev->pci_device & 0x0ff0) != 0x0100 &&
 198                     (dev->pci_device & 0x0ff0) != 0x0150))
 199                         /* HW is broken */
 200                         connector->interlace_allowed = false;
 201                 else
 202                         connector->interlace_allowed = true;
 203         }
 204
 205         if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
 206                 drm_connector_property_set_value(connector,
 207                         dev->mode_config.dvi_i_subconnector_property,
 208                         nv_encoder->dcb->type == OUTPUT_TMDS ?
 209                         DRM_MODE_SUBCONNECTOR_DVID :
 210                         DRM_MODE_SUBCONNECTOR_DVIA);
 211         }
 212 }
 213
 214 static enum drm_connector_status
 215 nouveau_connector_detect(struct drm_connector *connector)
 216 {
 217         struct drm_device *dev = connector->dev;
 218         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 219         struct nouveau_encoder *nv_encoder = NULL;
 220         struct nouveau_i2c_chan *i2c;
 221         int type, flags;
 222
 223         /* Cleanup the previous EDID block. */
 224         if (nv_connector->edid) {
 225                 drm_mode_connector_update_edid_property(connector, NULL);
 226                 kfree(nv_connector->edid);
 227                 nv_connector->edid = NULL;
 228         }
 229
 230         i2c = nouveau_connector_ddc_detect(connector, &nv_encoder);
 231         if (i2c) {
 232                 nouveau_connector_ddc_prepare(connector, &flags);
 233                 nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
 234                 nouveau_connector_ddc_finish(connector, flags);
 235                 drm_mode_connector_update_edid_property(connector,
 236                                                         nv_connector->edid);
 237                 if (!nv_connector->edid) {
 238                         NV_ERROR(dev, "DDC responded, but no EDID for %s\n",
 239                                  drm_get_connector_name(connector));
 240                         goto detect_analog;
 241                 }
 242
 243                 if (nv_encoder->dcb->type == OUTPUT_DP &&
 244                     !nouveau_dp_detect(to_drm_encoder(nv_encoder))) {
 245                         NV_ERROR(dev, "Detected %s, but failed init\n",
 246                                  drm_get_connector_name(connector));
 247                         return connector_status_disconnected;
 248                 }
 249
 250                 /* Override encoder type for DVI-I based on whether EDID
 251                  * says the display is digital or analog, both use the
 252                  * same i2c channel so the value returned from ddc_detect
 253                  * isn't necessarily correct.
 254                  */
 255                 if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
 256                         if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
 257                                 type = OUTPUT_TMDS;
 258                         else
 259                                 type = OUTPUT_ANALOG;
 260
 261                         nv_encoder = find_encoder_by_type(connector, type);
 262                         if (!nv_encoder) {
 263                                 NV_ERROR(dev, "Detected %d encoder on %s, "
 264                                               "but no object!\n", type,
 265                                          drm_get_connector_name(connector));
 266                                 return connector_status_disconnected;
 267                         }
 268                 }
 269
 270                 nouveau_connector_set_encoder(connector, nv_encoder);
 271                 return connector_status_connected;
 272         }
 273
 274 detect_analog:
 275         nv_encoder = find_encoder_by_type(connector, OUTPUT_ANALOG);
 276         if (!nv_encoder && !nouveau_tv_disable)
 277                 nv_encoder = find_encoder_by_type(connector, OUTPUT_TV);
 278         if (nv_encoder) {
 279                 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 280                 struct drm_encoder_helper_funcs *helper =
 281                                                 encoder->helper_private;
 282
 283                 if (helper->detect(encoder, connector) ==
 284                                                 connector_status_connected) {
 285                         nouveau_connector_set_encoder(connector, nv_encoder);
 286                         return connector_status_connected;
 287                 }
 288
 289         }
 290
 291         return connector_status_disconnected;
 292 }
 293
 294 static enum drm_connector_status
 295 nouveau_connector_detect_lvds(struct drm_connector *connector)
 296 {
 297         struct drm_device *dev = connector->dev;
 298         struct drm_nouveau_private *dev_priv = dev->dev_private;
 299         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 300         struct nouveau_encoder *nv_encoder = NULL;
 301         enum drm_connector_status status = connector_status_disconnected;
 302
 303         /* Cleanup the previous EDID block. */
 304         if (nv_connector->edid) {
 305                 drm_mode_connector_update_edid_property(connector, NULL);
 306                 kfree(nv_connector->edid);
 307                 nv_connector->edid = NULL;
 308         }
 309
 310         nv_encoder = find_encoder_by_type(connector, OUTPUT_LVDS);
 311         if (!nv_encoder)
 312                 return connector_status_disconnected;
 313
 314         /* Try retrieving EDID via DDC */
 315         if (!dev_priv->vbios.fp_no_ddc) {
 316                 status = nouveau_connector_detect(connector);
 317                 if (status == connector_status_connected)
 318                         goto out;
 319         }
 320
 321         /* On some laptops (Sony, i'm looking at you) there appears to
 322          * be no direct way of accessing the panel's EDID.  The only
 323          * option available to us appears to be to ask ACPI for help..
 324          *
 325          * It's important this check's before trying straps, one of the
 326          * said manufacturer's laptops are configured in such a way
 327          * the nouveau decides an entry in the VBIOS FP mode table is
 328          * valid - it's not (rh#613284)
 329          */
 330         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
 331                 if (!nouveau_acpi_edid(dev, connector)) {
 332                         status = connector_status_connected;
 333                         goto out;
 334                 }
 335         }
 336
 337         /* If no EDID found above, and the VBIOS indicates a hardcoded
 338          * modeline is avalilable for the panel, set it as the panel's
 339          * native mode and exit.
 340          */
 341         if (nouveau_bios_fp_mode(dev, NULL) && (dev_priv->vbios.fp_no_ddc ||
 342             nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
 343                 status = connector_status_connected;
 344                 goto out;
 345         }
 346
 347         /* Still nothing, some VBIOS images have a hardcoded EDID block
 348          * stored for the panel stored in them.
 349          */
 350         if (!dev_priv->vbios.fp_no_ddc) {
 351                 struct edid *edid =
 352                         (struct edid *)nouveau_bios_embedded_edid(dev);
 353                 if (edid) {
 354                         nv_connector->edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
 355                         *(nv_connector->edid) = *edid;
 356                         status = connector_status_connected;
 357                 }
 358         }
 359
 360 out:
 361 #if defined(CONFIG_ACPI_BUTTON) || \
 362         (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
 363         if (status == connector_status_connected &&
 364             !nouveau_ignorelid && !acpi_lid_open())
 365                 status = connector_status_unknown;
 366 #endif
 367
 368         drm_mode_connector_update_edid_property(connector, nv_connector->edid);
 369         nouveau_connector_set_encoder(connector, nv_encoder);
 370         return status;
 371 }
 372
 373 static void
 374 nouveau_connector_force(struct drm_connector *connector)
 375 {
 376         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 377         struct nouveau_encoder *nv_encoder;
 378         int type;
 379
 380         if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
 381                 if (connector->force == DRM_FORCE_ON_DIGITAL)
 382                         type = OUTPUT_TMDS;
 383                 else
 384                         type = OUTPUT_ANALOG;
 385         } else
 386                 type = OUTPUT_ANY;
 387
 388         nv_encoder = find_encoder_by_type(connector, type);
 389         if (!nv_encoder) {
 390                 NV_ERROR(connector->dev, "can't find encoder to force %s on!\n",
 391                          drm_get_connector_name(connector));
 392                 connector->status = connector_status_disconnected;
 393                 return;
 394         }
 395
 396         nouveau_connector_set_encoder(connector, nv_encoder);
 397 }
 398
 399 static int
 400 nouveau_connector_set_property(struct drm_connector *connector,
 401                                struct drm_property *property, uint64_t value)
 402 {
 403         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 404         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 405         struct drm_device *dev = connector->dev;
 406         int ret;
 407
 408         /* Scaling mode */
 409         if (property == dev->mode_config.scaling_mode_property) {
 410                 struct nouveau_crtc *nv_crtc = NULL;
 411                 bool modeset = false;
 412
 413                 switch (value) {
 414                 case DRM_MODE_SCALE_NONE:
 415                 case DRM_MODE_SCALE_FULLSCREEN:
 416                 case DRM_MODE_SCALE_CENTER:
 417                 case DRM_MODE_SCALE_ASPECT:
 418                         break;
 419                 default:
 420                         return -EINVAL;
 421                 }
 422
 423                 /* LVDS always needs gpu scaling */
 424                 if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS &&
 425                     value == DRM_MODE_SCALE_NONE)
 426                         return -EINVAL;
 427
 428                 /* Changing between GPU and panel scaling requires a full
 429                  * modeset
 430                  */
 431                 if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) ||
 432                     (value == DRM_MODE_SCALE_NONE))
 433                         modeset = true;
 434                 nv_connector->scaling_mode = value;
 435
 436                 if (connector->encoder && connector->encoder->crtc)
 437                         nv_crtc = nouveau_crtc(connector->encoder->crtc);
 438                 if (!nv_crtc)
 439                         return 0;
 440
 441                 if (modeset || !nv_crtc->set_scale) {
 442                         ret = drm_crtc_helper_set_mode(&nv_crtc->base,
 443                                                         &nv_crtc->base.mode,
 444                                                         nv_crtc->base.x,
 445                                                         nv_crtc->base.y, NULL);
 446                         if (!ret)
 447                                 return -EINVAL;
 448                 } else {
 449                         ret = nv_crtc->set_scale(nv_crtc, value, true);
 450                         if (ret)
 451                                 return ret;
 452                 }
 453
 454                 return 0;
 455         }
 456
 457         /* Dithering */
 458         if (property == dev->mode_config.dithering_mode_property) {
 459                 struct nouveau_crtc *nv_crtc = NULL;
 460
 461                 if (value == DRM_MODE_DITHERING_ON)
 462                         nv_connector->use_dithering = true;
 463                 else
 464                         nv_connector->use_dithering = false;
 465
 466                 if (connector->encoder && connector->encoder->crtc)
 467                         nv_crtc = nouveau_crtc(connector->encoder->crtc);
 468
 469                 if (!nv_crtc || !nv_crtc->set_dither)
 470                         return 0;
 471
 472                 return nv_crtc->set_dither(nv_crtc, nv_connector->use_dithering,
 473                                            true);
 474         }
 475
 476         if (nv_encoder && nv_encoder->dcb->type == OUTPUT_TV)
 477                 return get_slave_funcs(nv_encoder)->
 478                         set_property(to_drm_encoder(nv_encoder), connector, property, value);
 479
 480         return -EINVAL;
 481 }
 482
 483 static struct drm_display_mode *
 484 nouveau_connector_native_mode(struct drm_connector *connector)
 485 {
 486         struct drm_connector_helper_funcs *helper = connector->helper_private;
 487         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 488         struct drm_device *dev = connector->dev;
 489         struct drm_display_mode *mode, *largest = NULL;
 490         int high_w = 0, high_h = 0, high_v = 0;
 491
 492         list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
 493                 if (helper->mode_valid(connector, mode) != MODE_OK ||
 494                     (mode->flags & DRM_MODE_FLAG_INTERLACE))
 495                         continue;
 496
 497                 /* Use preferred mode if there is one.. */
 498                 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
 499                         NV_DEBUG_KMS(dev, "native mode from preferred\n");
 500                         return drm_mode_duplicate(dev, mode);
 501                 }
 502
 503                 /* Otherwise, take the resolution with the largest width, then
 504                  * height, then vertical refresh
 505                  */
 506                 if (mode->hdisplay < high_w)
 507                         continue;
 508
 509                 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
 510                         continue;
 511
 512                 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
 513                     mode->vrefresh < high_v)
 514                         continue;
 515
 516                 high_w = mode->hdisplay;
 517                 high_h = mode->vdisplay;
 518                 high_v = mode->vrefresh;
 519                 largest = mode;
 520         }
 521
 522         NV_DEBUG_KMS(dev, "native mode from largest: %dx%d@%d\n",
 523                       high_w, high_h, high_v);
 524         return largest ? drm_mode_duplicate(dev, largest) : NULL;
 525 }
 526
 527 struct moderec {
 528         int hdisplay;
 529         int vdisplay;
 530 };
 531
 532 static struct moderec scaler_modes[] = {
 533         { 1920, 1200 },
 534         { 1920, 1080 },
 535         { 1680, 1050 },
 536         { 1600, 1200 },
 537         { 1400, 1050 },
 538         { 1280, 1024 },
 539         { 1280, 960 },
 540         { 1152, 864 },
 541         { 1024, 768 },
 542         { 800, 600 },
 543         { 720, 400 },
 544         { 640, 480 },
 545         { 640, 400 },
 546         { 640, 350 },
 547         {}
 548 };
 549
 550 static int
 551 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 552 {
 553         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 554         struct drm_display_mode *native = nv_connector->native_mode, *m;
 555         struct drm_device *dev = connector->dev;
 556         struct moderec *mode = &scaler_modes[0];
 557         int modes = 0;
 558
 559         if (!native)
 560                 return 0;
 561
 562         while (mode->hdisplay) {
 563                 if (mode->hdisplay <= native->hdisplay &&
 564                     mode->vdisplay <= native->vdisplay) {
 565                         m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
 566                                          drm_mode_vrefresh(native), false,
 567                                          false, false);
 568                         if (!m)
 569                                 continue;
 570
 571                         m->type |= DRM_MODE_TYPE_DRIVER;
 572
 573                         drm_mode_probed_add(connector, m);
 574                         modes++;
 575                 }
 576
 577                 mode++;
 578         }
 579
 580         return modes;
 581 }
 582
 583 static int
 584 nouveau_connector_get_modes(struct drm_connector *connector)
 585 {
 586         struct drm_device *dev = connector->dev;
 587         struct drm_nouveau_private *dev_priv = dev->dev_private;
 588         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 589         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 590         int ret = 0;
 591
 592         /* destroy the native mode, the attached monitor could have changed.
 593          */
 594         if (nv_connector->native_mode) {
 595                 drm_mode_destroy(dev, nv_connector->native_mode);
 596                 nv_connector->native_mode = NULL;
 597         }
 598
 599         if (nv_connector->edid)
 600                 ret = drm_add_edid_modes(connector, nv_connector->edid);
 601         else
 602         if (nv_encoder->dcb->type == OUTPUT_LVDS &&
 603             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
 604              dev_priv->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
 605                 nv_connector->native_mode = drm_mode_create(dev);
 606                 nouveau_bios_fp_mode(dev, nv_connector->native_mode);
 607         }
 608
 609         /* Find the native mode if this is a digital panel, if we didn't
 610          * find any modes through DDC previously add the native mode to
 611          * the list of modes.
 612          */
 613         if (!nv_connector->native_mode)
 614                 nv_connector->native_mode =
 615                         nouveau_connector_native_mode(connector);
 616         if (ret == 0 && nv_connector->native_mode) {
 617                 struct drm_display_mode *mode;
 618
 619                 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
 620                 drm_mode_probed_add(connector, mode);
 621                 ret = 1;
 622         }
 623
 624         if (nv_encoder->dcb->type == OUTPUT_TV)
 625                 ret = get_slave_funcs(nv_encoder)->
 626                         get_modes(to_drm_encoder(nv_encoder), connector);
 627
 628         if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS ||
 629             nv_connector->dcb->type == DCB_CONNECTOR_eDP)
 630                 ret += nouveau_connector_scaler_modes_add(connector);
 631
 632         return ret;
 633 }
 634
 635 static int
 636 nouveau_connector_mode_valid(struct drm_connector *connector,
 637                              struct drm_display_mode *mode)
 638 {
 639         struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
 640         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 641         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 642         unsigned min_clock = 25000, max_clock = min_clock;
 643         unsigned clock = mode->clock;
 644
 645         switch (nv_encoder->dcb->type) {
 646         case OUTPUT_LVDS:
 647                 if (nv_connector->native_mode &&
 648                     (mode->hdisplay > nv_connector->native_mode->hdisplay ||
 649                      mode->vdisplay > nv_connector->native_mode->vdisplay))
 650                         return MODE_PANEL;
 651
 652                 min_clock = 0;
 653                 max_clock = 400000;
 654                 break;
 655         case OUTPUT_TMDS:
 656                 if ((dev_priv->card_type >= NV_50 && !nouveau_duallink) ||
 657                     !nv_encoder->dcb->duallink_possible)
 658                         max_clock = 165000;
 659                 else
 660                         max_clock = 330000;
 661                 break;
 662         case OUTPUT_ANALOG:
 663                 max_clock = nv_encoder->dcb->crtconf.maxfreq;
 664                 if (!max_clock)
 665                         max_clock = 350000;
 666                 break;
 667         case OUTPUT_TV:
 668                 return get_slave_funcs(nv_encoder)->
 669                         mode_valid(to_drm_encoder(nv_encoder), mode);
 670         case OUTPUT_DP:
 671                 if (nv_encoder->dp.link_bw == DP_LINK_BW_2_7)
 672                         max_clock = nv_encoder->dp.link_nr * 270000;
 673                 else
 674                         max_clock = nv_encoder->dp.link_nr * 162000;
 675
 676                 clock *= 3;
 677                 break;
 678         default:
 679                 BUG_ON(1);
 680                 return MODE_BAD;
 681         }
 682
 683         if (clock < min_clock)
 684                 return MODE_CLOCK_LOW;
 685
 686         if (clock > max_clock)
 687                 return MODE_CLOCK_HIGH;
 688
 689         return MODE_OK;
 690 }
 691
 692 static struct drm_encoder *
 693 nouveau_connector_best_encoder(struct drm_connector *connector)
 694 {
 695         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 696
 697         if (nv_connector->detected_encoder)
 698                 return to_drm_encoder(nv_connector->detected_encoder);
 699
 700         return NULL;
 701 }
 702
 703 void
 704 nouveau_connector_set_polling(struct drm_connector *connector)
 705 {
 706         struct drm_device *dev = connector->dev;
 707         struct drm_nouveau_private *dev_priv = dev->dev_private;
 708         struct drm_crtc *crtc;
 709         bool spare_crtc = false;
 710
 711         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 712                 spare_crtc |= !crtc->enabled;
 713
 714         connector->polled = 0;
 715
 716         switch (connector->connector_type) {
 717         case DRM_MODE_CONNECTOR_VGA:
 718         case DRM_MODE_CONNECTOR_TV:
 719                 if (dev_priv->card_type >= NV_50 ||
 720                     (nv_gf4_disp_arch(dev) && spare_crtc))
 721                         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
 722                 break;
 723
 724         case DRM_MODE_CONNECTOR_DVII:
 725         case DRM_MODE_CONNECTOR_DVID:
 726         case DRM_MODE_CONNECTOR_HDMIA:
 727         case DRM_MODE_CONNECTOR_DisplayPort:
 728         case DRM_MODE_CONNECTOR_eDP:
 729                 if (dev_priv->card_type >= NV_50)
 730                         connector->polled = DRM_CONNECTOR_POLL_HPD;
 731                 else if (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
 732                          spare_crtc)
 733                         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
 734                 break;
 735
 736         default:
 737                 break;
 738         }
 739 }
 740
 741 static const struct drm_connector_helper_funcs
 742 nouveau_connector_helper_funcs = {
 743         .get_modes = nouveau_connector_get_modes,
 744         .mode_valid = nouveau_connector_mode_valid,
 745         .best_encoder = nouveau_connector_best_encoder,
 746 };
 747
 748 static const struct drm_connector_funcs
 749 nouveau_connector_funcs = {
 750         .dpms = drm_helper_connector_dpms,
 751         .save = NULL,
 752         .restore = NULL,
 753         .detect = nouveau_connector_detect,
 754         .destroy = nouveau_connector_destroy,
 755         .fill_modes = drm_helper_probe_single_connector_modes,
 756         .set_property = nouveau_connector_set_property,
 757         .force = nouveau_connector_force
 758 };
 759
 760 static const struct drm_connector_funcs
 761 nouveau_connector_funcs_lvds = {
 762         .dpms = drm_helper_connector_dpms,
 763         .save = NULL,
 764         .restore = NULL,
 765         .detect = nouveau_connector_detect_lvds,
 766         .destroy = nouveau_connector_destroy,
 767         .fill_modes = drm_helper_probe_single_connector_modes,
 768         .set_property = nouveau_connector_set_property,
 769         .force = nouveau_connector_force
 770 };
 771
 772 struct drm_connector *
 773 nouveau_connector_create(struct drm_device *dev, int index)
 774 {
 775         const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
 776         struct drm_nouveau_private *dev_priv = dev->dev_private;
 777         struct nouveau_connector *nv_connector = NULL;
 778         struct dcb_connector_table_entry *dcb = NULL;
 779         struct drm_connector *connector;
 780         int type, ret = 0;
 781
 782         NV_DEBUG_KMS(dev, "\n");
 783
 784         if (index >= dev_priv->vbios.dcb.connector.entries)
 785                 return ERR_PTR(-EINVAL);
 786
 787         dcb = &dev_priv->vbios.dcb.connector.entry[index];
 788         if (dcb->drm)
 789                 return dcb->drm;
 790
 791         switch (dcb->type) {
 792         case DCB_CONNECTOR_VGA:
 793                 type = DRM_MODE_CONNECTOR_VGA;
 794                 break;
 795         case DCB_CONNECTOR_TV_0:
 796         case DCB_CONNECTOR_TV_1:
 797         case DCB_CONNECTOR_TV_3:
 798                 type = DRM_MODE_CONNECTOR_TV;
 799                 break;
 800         case DCB_CONNECTOR_DVI_I:
 801                 type = DRM_MODE_CONNECTOR_DVII;
 802                 break;
 803         case DCB_CONNECTOR_DVI_D:
 804                 type = DRM_MODE_CONNECTOR_DVID;
 805                 break;
 806         case DCB_CONNECTOR_HDMI_0:
 807         case DCB_CONNECTOR_HDMI_1:
 808                 type = DRM_MODE_CONNECTOR_HDMIA;
 809                 break;
 810         case DCB_CONNECTOR_LVDS:
 811                 type = DRM_MODE_CONNECTOR_LVDS;
 812                 funcs = &nouveau_connector_funcs_lvds;
 813                 break;
 814         case DCB_CONNECTOR_DP:
 815                 type = DRM_MODE_CONNECTOR_DisplayPort;
 816                 break;
 817         case DCB_CONNECTOR_eDP:
 818                 type = DRM_MODE_CONNECTOR_eDP;
 819                 break;
 820         default:
 821                 NV_ERROR(dev, "unknown connector type: 0x%02x!!\n", dcb->type);
 822                 return ERR_PTR(-EINVAL);
 823         }
 824
 825         nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
 826         if (!nv_connector)
 827                 return ERR_PTR(-ENOMEM);
 828         nv_connector->dcb = dcb;
 829         connector = &nv_connector->base;
 830
 831         /* defaults, will get overridden in detect() */
 832         connector->interlace_allowed = false;
 833         connector->doublescan_allowed = false;
 834
 835         drm_connector_init(dev, connector, funcs, type);
 836         drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
 837
 838         /* Check if we need dithering enabled */
 839         if (dcb->type == DCB_CONNECTOR_LVDS) {
 840                 bool dummy, is_24bit = false;
 841
 842                 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &is_24bit);
 843                 if (ret) {
 844                         NV_ERROR(dev, "Error parsing LVDS table, disabling "
 845                                  "LVDS\n");
 846                         goto fail;
 847                 }
 848
 849                 nv_connector->use_dithering = !is_24bit;
 850         }
 851
 852         /* Init DVI-I specific properties */
 853         if (dcb->type == DCB_CONNECTOR_DVI_I) {
 854                 drm_mode_create_dvi_i_properties(dev);
 855                 drm_connector_attach_property(connector, dev->mode_config.dvi_i_subconnector_property, 0);
 856                 drm_connector_attach_property(connector, dev->mode_config.dvi_i_select_subconnector_property, 0);
 857         }
 858
 859         switch (dcb->type) {
 860         case DCB_CONNECTOR_VGA:
 861                 if (dev_priv->card_type >= NV_50) {
 862                         drm_connector_attach_property(connector,
 863                                         dev->mode_config.scaling_mode_property,
 864                                         nv_connector->scaling_mode);
 865                 }
 866                 /* fall-through */
 867         case DCB_CONNECTOR_TV_0:
 868         case DCB_CONNECTOR_TV_1:
 869         case DCB_CONNECTOR_TV_3:
 870                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
 871                 break;
 872         default:
 873                 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
 874
 875                 drm_connector_attach_property(connector,
 876                                 dev->mode_config.scaling_mode_property,
 877                                 nv_connector->scaling_mode);
 878                 drm_connector_attach_property(connector,
 879                                 dev->mode_config.dithering_mode_property,
 880                                 nv_connector->use_dithering ?
 881                                 DRM_MODE_DITHERING_ON : DRM_MODE_DITHERING_OFF);
 882                 break;
 883         }
 884
 885         nouveau_connector_set_polling(connector);
 886
 887         drm_sysfs_connector_add(connector);
 888         dcb->drm = connector;
 889         return dcb->drm;
 890
 891 fail:
 892         drm_connector_cleanup(connector);
 893         kfree(connector);
 894         return ERR_PTR(ret);
 895
 896 }