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 void nouveau_connector_hotplug(void *, int);
  41
  42 static struct nouveau_encoder *
  43 find_encoder(struct drm_connector *connector, int type)
  44 {
  45         struct drm_device *dev = connector->dev;
  46         struct nouveau_encoder *nv_encoder;
  47         struct drm_mode_object *obj;
  48         int i, id;
  49
  50         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
  51                 id = connector->encoder_ids[i];
  52                 if (!id)
  53                         break;
  54
  55                 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
  56                 if (!obj)
  57                         continue;
  58                 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
  59
  60                 if (type == OUTPUT_ANY || nv_encoder->dcb->type == type)
  61                         return nv_encoder;
  62         }
  63
  64         return NULL;
  65 }
  66
  67 struct nouveau_connector *
  68 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
  69 {
  70         struct drm_device *dev = to_drm_encoder(encoder)->dev;
  71         struct drm_connector *drm_connector;
  72
  73         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
  74                 if (drm_connector->encoder == to_drm_encoder(encoder))
  75                         return nouveau_connector(drm_connector);
  76         }
  77
  78         return NULL;
  79 }
  80
  81 /*TODO: This could use improvement, and learn to handle the fixed
  82  *      BIOS tables etc.  It's fine currently, for its only user.
  83  */
  84 int
  85 nouveau_connector_bpp(struct drm_connector *connector)
  86 {
  87         struct nouveau_connector *nv_connector = nouveau_connector(connector);
  88
  89         if (nv_connector->edid && nv_connector->edid->revision >= 4) {
  90                 u8 bpc = ((nv_connector->edid->input & 0x70) >> 3) + 4;
  91                 if (bpc > 4)
  92                         return bpc;
  93         }
  94
  95         return 18;
  96 }
  97
  98 static void
  99 nouveau_connector_destroy(struct drm_connector *connector)
 100 {
 101         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 102         struct drm_nouveau_private *dev_priv;
 103         struct nouveau_gpio_engine *pgpio;
 104         struct drm_device *dev;
 105
 106         if (!nv_connector)
 107                 return;
 108
 109         dev = nv_connector->base.dev;
 110         dev_priv = dev->dev_private;
 111         NV_DEBUG_KMS(dev, "\n");
 112
 113         pgpio = &dev_priv->engine.gpio;
 114         if (pgpio->irq_unregister) {
 115                 pgpio->irq_unregister(dev, nv_connector->dcb->gpio_tag,
 116                                       nouveau_connector_hotplug, connector);
 117         }
 118
 119         if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS ||
 120             connector->connector_type == DRM_MODE_CONNECTOR_eDP)
 121                 nouveau_backlight_exit(connector);
 122
 123         kfree(nv_connector->edid);
 124         drm_sysfs_connector_remove(connector);
 125         drm_connector_cleanup(connector);
 126         kfree(connector);
 127 }
 128
 129 static struct nouveau_i2c_chan *
 130 nouveau_connector_ddc_detect(struct drm_connector *connector,
 131                              struct nouveau_encoder **pnv_encoder)
 132 {
 133         struct drm_device *dev = connector->dev;
 134         int i;
 135
 136         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
 137                 struct nouveau_i2c_chan *i2c = NULL;
 138                 struct nouveau_encoder *nv_encoder;
 139                 struct drm_mode_object *obj;
 140                 int id;
 141
 142                 id = connector->encoder_ids[i];
 143                 if (!id)
 144                         break;
 145
 146                 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
 147                 if (!obj)
 148                         continue;
 149                 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
 150
 151                 if (nv_encoder->dcb->i2c_index < 0xf)
 152                         i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
 153
 154                 if (i2c && nouveau_probe_i2c_addr(i2c, 0x50)) {
 155                         *pnv_encoder = nv_encoder;
 156                         return i2c;
 157                 }
 158         }
 159
 160         return NULL;
 161 }
 162
 163 static struct nouveau_encoder *
 164 nouveau_connector_of_detect(struct drm_connector *connector)
 165 {
 166 #ifdef __powerpc__
 167         struct drm_device *dev = connector->dev;
 168         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 169         struct nouveau_encoder *nv_encoder;
 170         struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
 171
 172         if (!dn ||
 173             !((nv_encoder = find_encoder(connector, OUTPUT_TMDS)) ||
 174               (nv_encoder = find_encoder(connector, OUTPUT_ANALOG))))
 175                 return NULL;
 176
 177         for_each_child_of_node(dn, cn) {
 178                 const char *name = of_get_property(cn, "name", NULL);
 179                 const void *edid = of_get_property(cn, "EDID", NULL);
 180                 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
 181
 182                 if (nv_encoder->dcb->i2c_index == idx && edid) {
 183                         nv_connector->edid =
 184                                 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 185                         of_node_put(cn);
 186                         return nv_encoder;
 187                 }
 188         }
 189 #endif
 190         return NULL;
 191 }
 192
 193 static void
 194 nouveau_connector_set_encoder(struct drm_connector *connector,
 195                               struct nouveau_encoder *nv_encoder)
 196 {
 197         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 198         struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
 199         struct drm_device *dev = connector->dev;
 200
 201         if (nv_connector->detected_encoder == nv_encoder)
 202                 return;
 203         nv_connector->detected_encoder = nv_encoder;
 204
 205         if (nv_encoder->dcb->type == OUTPUT_LVDS ||
 206             nv_encoder->dcb->type == OUTPUT_TMDS) {
 207                 connector->doublescan_allowed = false;
 208                 connector->interlace_allowed = false;
 209         } else {
 210                 connector->doublescan_allowed = true;
 211                 if (dev_priv->card_type == NV_20 ||
 212                    (dev_priv->card_type == NV_10 &&
 213                     (dev->pci_device & 0x0ff0) != 0x0100 &&
 214                     (dev->pci_device & 0x0ff0) != 0x0150))
 215                         /* HW is broken */
 216                         connector->interlace_allowed = false;
 217                 else
 218                         connector->interlace_allowed = true;
 219         }
 220
 221         if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
 222                 drm_connector_property_set_value(connector,
 223                         dev->mode_config.dvi_i_subconnector_property,
 224                         nv_encoder->dcb->type == OUTPUT_TMDS ?
 225                         DRM_MODE_SUBCONNECTOR_DVID :
 226                         DRM_MODE_SUBCONNECTOR_DVIA);
 227         }
 228 }
 229
 230 static enum drm_connector_status
 231 nouveau_connector_detect(struct drm_connector *connector, bool force)
 232 {
 233         struct drm_device *dev = connector->dev;
 234         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 235         struct nouveau_encoder *nv_encoder = NULL;
 236         struct nouveau_encoder *nv_partner;
 237         struct nouveau_i2c_chan *i2c;
 238         int type;
 239
 240         /* Cleanup the previous EDID block. */
 241         if (nv_connector->edid) {
 242                 drm_mode_connector_update_edid_property(connector, NULL);
 243                 kfree(nv_connector->edid);
 244                 nv_connector->edid = NULL;
 245         }
 246
 247         i2c = nouveau_connector_ddc_detect(connector, &nv_encoder);
 248         if (i2c) {
 249                 nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
 250                 drm_mode_connector_update_edid_property(connector,
 251                                                         nv_connector->edid);
 252                 if (!nv_connector->edid) {
 253                         NV_ERROR(dev, "DDC responded, but no EDID for %s\n",
 254                                  drm_get_connector_name(connector));
 255                         goto detect_analog;
 256                 }
 257
 258                 if (nv_encoder->dcb->type == OUTPUT_DP &&
 259                     !nouveau_dp_detect(to_drm_encoder(nv_encoder))) {
 260                         NV_ERROR(dev, "Detected %s, but failed init\n",
 261                                  drm_get_connector_name(connector));
 262                         return connector_status_disconnected;
 263                 }
 264
 265                 /* Override encoder type for DVI-I based on whether EDID
 266                  * says the display is digital or analog, both use the
 267                  * same i2c channel so the value returned from ddc_detect
 268                  * isn't necessarily correct.
 269                  */
 270                 nv_partner = NULL;
 271                 if (nv_encoder->dcb->type == OUTPUT_TMDS)
 272                         nv_partner = find_encoder(connector, OUTPUT_ANALOG);
 273                 if (nv_encoder->dcb->type == OUTPUT_ANALOG)
 274                         nv_partner = find_encoder(connector, OUTPUT_TMDS);
 275
 276                 if (nv_partner && ((nv_encoder->dcb->type == OUTPUT_ANALOG &&
 277                                     nv_partner->dcb->type == OUTPUT_TMDS) ||
 278                                    (nv_encoder->dcb->type == OUTPUT_TMDS &&
 279                                     nv_partner->dcb->type == OUTPUT_ANALOG))) {
 280                         if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
 281                                 type = OUTPUT_TMDS;
 282                         else
 283                                 type = OUTPUT_ANALOG;
 284
 285                         nv_encoder = find_encoder(connector, type);
 286                 }
 287
 288                 nouveau_connector_set_encoder(connector, nv_encoder);
 289                 return connector_status_connected;
 290         }
 291
 292         nv_encoder = nouveau_connector_of_detect(connector);
 293         if (nv_encoder) {
 294                 nouveau_connector_set_encoder(connector, nv_encoder);
 295                 return connector_status_connected;
 296         }
 297
 298 detect_analog:
 299         nv_encoder = find_encoder(connector, OUTPUT_ANALOG);
 300         if (!nv_encoder && !nouveau_tv_disable)
 301                 nv_encoder = find_encoder(connector, OUTPUT_TV);
 302         if (nv_encoder && force) {
 303                 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 304                 struct drm_encoder_helper_funcs *helper =
 305                                                 encoder->helper_private;
 306
 307                 if (helper->detect(encoder, connector) ==
 308                                                 connector_status_connected) {
 309                         nouveau_connector_set_encoder(connector, nv_encoder);
 310                         return connector_status_connected;
 311                 }
 312
 313         }
 314
 315         return connector_status_disconnected;
 316 }
 317
 318 static enum drm_connector_status
 319 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
 320 {
 321         struct drm_device *dev = connector->dev;
 322         struct drm_nouveau_private *dev_priv = dev->dev_private;
 323         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 324         struct nouveau_encoder *nv_encoder = NULL;
 325         enum drm_connector_status status = connector_status_disconnected;
 326
 327         /* Cleanup the previous EDID block. */
 328         if (nv_connector->edid) {
 329                 drm_mode_connector_update_edid_property(connector, NULL);
 330                 kfree(nv_connector->edid);
 331                 nv_connector->edid = NULL;
 332         }
 333
 334         nv_encoder = find_encoder(connector, OUTPUT_LVDS);
 335         if (!nv_encoder)
 336                 return connector_status_disconnected;
 337
 338         /* Try retrieving EDID via DDC */
 339         if (!dev_priv->vbios.fp_no_ddc) {
 340                 status = nouveau_connector_detect(connector, force);
 341                 if (status == connector_status_connected)
 342                         goto out;
 343         }
 344
 345         /* On some laptops (Sony, i'm looking at you) there appears to
 346          * be no direct way of accessing the panel's EDID.  The only
 347          * option available to us appears to be to ask ACPI for help..
 348          *
 349          * It's important this check's before trying straps, one of the
 350          * said manufacturer's laptops are configured in such a way
 351          * the nouveau decides an entry in the VBIOS FP mode table is
 352          * valid - it's not (rh#613284)
 353          */
 354         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
 355                 if (!nouveau_acpi_edid(dev, connector)) {
 356                         status = connector_status_connected;
 357                         goto out;
 358                 }
 359         }
 360
 361         /* If no EDID found above, and the VBIOS indicates a hardcoded
 362          * modeline is avalilable for the panel, set it as the panel's
 363          * native mode and exit.
 364          */
 365         if (nouveau_bios_fp_mode(dev, NULL) && (dev_priv->vbios.fp_no_ddc ||
 366             nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
 367                 status = connector_status_connected;
 368                 goto out;
 369         }
 370
 371         /* Still nothing, some VBIOS images have a hardcoded EDID block
 372          * stored for the panel stored in them.
 373          */
 374         if (!dev_priv->vbios.fp_no_ddc) {
 375                 struct edid *edid =
 376                         (struct edid *)nouveau_bios_embedded_edid(dev);
 377                 if (edid) {
 378                         nv_connector->edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
 379                         *(nv_connector->edid) = *edid;
 380                         status = connector_status_connected;
 381                 }
 382         }
 383
 384 out:
 385 #if defined(CONFIG_ACPI_BUTTON) || \
 386         (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
 387         if (status == connector_status_connected &&
 388             !nouveau_ignorelid && !acpi_lid_open())
 389                 status = connector_status_unknown;
 390 #endif
 391
 392         drm_mode_connector_update_edid_property(connector, nv_connector->edid);
 393         nouveau_connector_set_encoder(connector, nv_encoder);
 394         return status;
 395 }
 396
 397 static void
 398 nouveau_connector_force(struct drm_connector *connector)
 399 {
 400         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 401         struct nouveau_encoder *nv_encoder;
 402         int type;
 403
 404         if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
 405                 if (connector->force == DRM_FORCE_ON_DIGITAL)
 406                         type = OUTPUT_TMDS;
 407                 else
 408                         type = OUTPUT_ANALOG;
 409         } else
 410                 type = OUTPUT_ANY;
 411
 412         nv_encoder = find_encoder(connector, type);
 413         if (!nv_encoder) {
 414                 NV_ERROR(connector->dev, "can't find encoder to force %s on!\n",
 415                          drm_get_connector_name(connector));
 416                 connector->status = connector_status_disconnected;
 417                 return;
 418         }
 419
 420         nouveau_connector_set_encoder(connector, nv_encoder);
 421 }
 422
 423 static int
 424 nouveau_connector_set_property(struct drm_connector *connector,
 425                                struct drm_property *property, uint64_t value)
 426 {
 427         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 428         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 429         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 430         struct drm_device *dev = connector->dev;
 431         int ret;
 432
 433         /* Scaling mode */
 434         if (property == dev->mode_config.scaling_mode_property) {
 435                 struct nouveau_crtc *nv_crtc = NULL;
 436                 bool modeset = false;
 437
 438                 switch (value) {
 439                 case DRM_MODE_SCALE_NONE:
 440                 case DRM_MODE_SCALE_FULLSCREEN:
 441                 case DRM_MODE_SCALE_CENTER:
 442                 case DRM_MODE_SCALE_ASPECT:
 443                         break;
 444                 default:
 445                         return -EINVAL;
 446                 }
 447
 448                 /* LVDS always needs gpu scaling */
 449                 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS &&
 450                     value == DRM_MODE_SCALE_NONE)
 451                         return -EINVAL;
 452
 453                 /* Changing between GPU and panel scaling requires a full
 454                  * modeset
 455                  */
 456                 if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) ||
 457                     (value == DRM_MODE_SCALE_NONE))
 458                         modeset = true;
 459                 nv_connector->scaling_mode = value;
 460
 461                 if (connector->encoder && connector->encoder->crtc)
 462                         nv_crtc = nouveau_crtc(connector->encoder->crtc);
 463                 if (!nv_crtc)
 464                         return 0;
 465
 466                 if (modeset || !nv_crtc->set_scale) {
 467                         ret = drm_crtc_helper_set_mode(&nv_crtc->base,
 468                                                         &nv_crtc->base.mode,
 469                                                         nv_crtc->base.x,
 470                                                         nv_crtc->base.y, NULL);
 471                         if (!ret)
 472                                 return -EINVAL;
 473                 } else {
 474                         ret = nv_crtc->set_scale(nv_crtc, value, true);
 475                         if (ret)
 476                                 return ret;
 477                 }
 478
 479                 return 0;
 480         }
 481
 482         /* Dithering */
 483         if (property == dev->mode_config.dithering_mode_property) {
 484                 struct nouveau_crtc *nv_crtc = NULL;
 485
 486                 if (value == DRM_MODE_DITHERING_ON)
 487                         nv_connector->use_dithering = true;
 488                 else
 489                         nv_connector->use_dithering = false;
 490
 491                 if (connector->encoder && connector->encoder->crtc)
 492                         nv_crtc = nouveau_crtc(connector->encoder->crtc);
 493
 494                 if (!nv_crtc || !nv_crtc->set_dither)
 495                         return 0;
 496
 497                 return nv_crtc->set_dither(nv_crtc, nv_connector->use_dithering,
 498                                            true);
 499         }
 500
 501         if (nv_encoder && nv_encoder->dcb->type == OUTPUT_TV)
 502                 return get_slave_funcs(encoder)->set_property(
 503                         encoder, connector, property, value);
 504
 505         return -EINVAL;
 506 }
 507
 508 static struct drm_display_mode *
 509 nouveau_connector_native_mode(struct drm_connector *connector)
 510 {
 511         struct drm_connector_helper_funcs *helper = connector->helper_private;
 512         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 513         struct drm_device *dev = connector->dev;
 514         struct drm_display_mode *mode, *largest = NULL;
 515         int high_w = 0, high_h = 0, high_v = 0;
 516
 517         list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
 518                 mode->vrefresh = drm_mode_vrefresh(mode);
 519                 if (helper->mode_valid(connector, mode) != MODE_OK ||
 520                     (mode->flags & DRM_MODE_FLAG_INTERLACE))
 521                         continue;
 522
 523                 /* Use preferred mode if there is one.. */
 524                 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
 525                         NV_DEBUG_KMS(dev, "native mode from preferred\n");
 526                         return drm_mode_duplicate(dev, mode);
 527                 }
 528
 529                 /* Otherwise, take the resolution with the largest width, then
 530                  * height, then vertical refresh
 531                  */
 532                 if (mode->hdisplay < high_w)
 533                         continue;
 534
 535                 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
 536                         continue;
 537
 538                 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
 539                     mode->vrefresh < high_v)
 540                         continue;
 541
 542                 high_w = mode->hdisplay;
 543                 high_h = mode->vdisplay;
 544                 high_v = mode->vrefresh;
 545                 largest = mode;
 546         }
 547
 548         NV_DEBUG_KMS(dev, "native mode from largest: %dx%d@%d\n",
 549                       high_w, high_h, high_v);
 550         return largest ? drm_mode_duplicate(dev, largest) : NULL;
 551 }
 552
 553 struct moderec {
 554         int hdisplay;
 555         int vdisplay;
 556 };
 557
 558 static struct moderec scaler_modes[] = {
 559         { 1920, 1200 },
 560         { 1920, 1080 },
 561         { 1680, 1050 },
 562         { 1600, 1200 },
 563         { 1400, 1050 },
 564         { 1280, 1024 },
 565         { 1280, 960 },
 566         { 1152, 864 },
 567         { 1024, 768 },
 568         { 800, 600 },
 569         { 720, 400 },
 570         { 640, 480 },
 571         { 640, 400 },
 572         { 640, 350 },
 573         {}
 574 };
 575
 576 static int
 577 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 578 {
 579         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 580         struct drm_display_mode *native = nv_connector->native_mode, *m;
 581         struct drm_device *dev = connector->dev;
 582         struct moderec *mode = &scaler_modes[0];
 583         int modes = 0;
 584
 585         if (!native)
 586                 return 0;
 587
 588         while (mode->hdisplay) {
 589                 if (mode->hdisplay <= native->hdisplay &&
 590                     mode->vdisplay <= native->vdisplay) {
 591                         m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
 592                                          drm_mode_vrefresh(native), false,
 593                                          false, false);
 594                         if (!m)
 595                                 continue;
 596
 597                         m->type |= DRM_MODE_TYPE_DRIVER;
 598
 599                         drm_mode_probed_add(connector, m);
 600                         modes++;
 601                 }
 602
 603                 mode++;
 604         }
 605
 606         return modes;
 607 }
 608
 609 static int
 610 nouveau_connector_get_modes(struct drm_connector *connector)
 611 {
 612         struct drm_device *dev = connector->dev;
 613         struct drm_nouveau_private *dev_priv = dev->dev_private;
 614         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 615         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 616         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 617         int ret = 0;
 618
 619         /* destroy the native mode, the attached monitor could have changed.
 620          */
 621         if (nv_connector->native_mode) {
 622                 drm_mode_destroy(dev, nv_connector->native_mode);
 623                 nv_connector->native_mode = NULL;
 624         }
 625
 626         if (nv_connector->edid)
 627                 ret = drm_add_edid_modes(connector, nv_connector->edid);
 628         else
 629         if (nv_encoder->dcb->type == OUTPUT_LVDS &&
 630             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
 631              dev_priv->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
 632                 struct drm_display_mode mode;
 633
 634                 nouveau_bios_fp_mode(dev, &mode);
 635                 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
 636         }
 637
 638         /* Find the native mode if this is a digital panel, if we didn't
 639          * find any modes through DDC previously add the native mode to
 640          * the list of modes.
 641          */
 642         if (!nv_connector->native_mode)
 643                 nv_connector->native_mode =
 644                         nouveau_connector_native_mode(connector);
 645         if (ret == 0 && nv_connector->native_mode) {
 646                 struct drm_display_mode *mode;
 647
 648                 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
 649                 drm_mode_probed_add(connector, mode);
 650                 ret = 1;
 651         }
 652
 653         if (nv_encoder->dcb->type == OUTPUT_TV)
 654                 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
 655
 656         if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS ||
 657             nv_connector->dcb->type == DCB_CONNECTOR_LVDS_SPWG ||
 658             nv_connector->dcb->type == DCB_CONNECTOR_eDP)
 659                 ret += nouveau_connector_scaler_modes_add(connector);
 660
 661         return ret;
 662 }
 663
 664 static unsigned
 665 get_tmds_link_bandwidth(struct drm_connector *connector)
 666 {
 667         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 668         struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
 669         struct dcb_entry *dcb = nv_connector->detected_encoder->dcb;
 670
 671         if (dcb->location != DCB_LOC_ON_CHIP ||
 672             dev_priv->chipset >= 0x46)
 673                 return 165000;
 674         else if (dev_priv->chipset >= 0x40)
 675                 return 155000;
 676         else if (dev_priv->chipset >= 0x18)
 677                 return 135000;
 678         else
 679                 return 112000;
 680 }
 681
 682 static int
 683 nouveau_connector_mode_valid(struct drm_connector *connector,
 684                              struct drm_display_mode *mode)
 685 {
 686         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 687         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 688         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 689         unsigned min_clock = 25000, max_clock = min_clock;
 690         unsigned clock = mode->clock;
 691
 692         switch (nv_encoder->dcb->type) {
 693         case OUTPUT_LVDS:
 694                 if (nv_connector->native_mode &&
 695                     (mode->hdisplay > nv_connector->native_mode->hdisplay ||
 696                      mode->vdisplay > nv_connector->native_mode->vdisplay))
 697                         return MODE_PANEL;
 698
 699                 min_clock = 0;
 700                 max_clock = 400000;
 701                 break;
 702         case OUTPUT_TMDS:
 703                 max_clock = get_tmds_link_bandwidth(connector);
 704                 if (nouveau_duallink && nv_encoder->dcb->duallink_possible)
 705                         max_clock *= 2;
 706                 break;
 707         case OUTPUT_ANALOG:
 708                 max_clock = nv_encoder->dcb->crtconf.maxfreq;
 709                 if (!max_clock)
 710                         max_clock = 350000;
 711                 break;
 712         case OUTPUT_TV:
 713                 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
 714         case OUTPUT_DP:
 715                 if (nv_encoder->dp.link_bw == DP_LINK_BW_2_7)
 716                         max_clock = nv_encoder->dp.link_nr * 270000;
 717                 else
 718                         max_clock = nv_encoder->dp.link_nr * 162000;
 719
 720                 clock = clock * nouveau_connector_bpp(connector) / 8;
 721                 break;
 722         default:
 723                 BUG_ON(1);
 724                 return MODE_BAD;
 725         }
 726
 727         if (clock < min_clock)
 728                 return MODE_CLOCK_LOW;
 729
 730         if (clock > max_clock)
 731                 return MODE_CLOCK_HIGH;
 732
 733         return MODE_OK;
 734 }
 735
 736 static struct drm_encoder *
 737 nouveau_connector_best_encoder(struct drm_connector *connector)
 738 {
 739         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 740
 741         if (nv_connector->detected_encoder)
 742                 return to_drm_encoder(nv_connector->detected_encoder);
 743
 744         return NULL;
 745 }
 746
 747 static const struct drm_connector_helper_funcs
 748 nouveau_connector_helper_funcs = {
 749         .get_modes = nouveau_connector_get_modes,
 750         .mode_valid = nouveau_connector_mode_valid,
 751         .best_encoder = nouveau_connector_best_encoder,
 752 };
 753
 754 static const struct drm_connector_funcs
 755 nouveau_connector_funcs = {
 756         .dpms = drm_helper_connector_dpms,
 757         .save = NULL,
 758         .restore = NULL,
 759         .detect = nouveau_connector_detect,
 760         .destroy = nouveau_connector_destroy,
 761         .fill_modes = drm_helper_probe_single_connector_modes,
 762         .set_property = nouveau_connector_set_property,
 763         .force = nouveau_connector_force
 764 };
 765
 766 static const struct drm_connector_funcs
 767 nouveau_connector_funcs_lvds = {
 768         .dpms = drm_helper_connector_dpms,
 769         .save = NULL,
 770         .restore = NULL,
 771         .detect = nouveau_connector_detect_lvds,
 772         .destroy = nouveau_connector_destroy,
 773         .fill_modes = drm_helper_probe_single_connector_modes,
 774         .set_property = nouveau_connector_set_property,
 775         .force = nouveau_connector_force
 776 };
 777
 778 struct drm_connector *
 779 nouveau_connector_create(struct drm_device *dev, int index)
 780 {
 781         const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
 782         struct drm_nouveau_private *dev_priv = dev->dev_private;
 783         struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
 784         struct nouveau_connector *nv_connector = NULL;
 785         struct dcb_connector_table_entry *dcb = NULL;
 786         struct drm_connector *connector;
 787         int type, ret = 0;
 788
 789         NV_DEBUG_KMS(dev, "\n");
 790
 791         if (index >= dev_priv->vbios.dcb.connector.entries)
 792                 return ERR_PTR(-EINVAL);
 793
 794         dcb = &dev_priv->vbios.dcb.connector.entry[index];
 795         if (dcb->drm)
 796                 return dcb->drm;
 797
 798         switch (dcb->type) {
 799         case DCB_CONNECTOR_VGA:
 800                 type = DRM_MODE_CONNECTOR_VGA;
 801                 break;
 802         case DCB_CONNECTOR_TV_0:
 803         case DCB_CONNECTOR_TV_1:
 804         case DCB_CONNECTOR_TV_3:
 805                 type = DRM_MODE_CONNECTOR_TV;
 806                 break;
 807         case DCB_CONNECTOR_DVI_I:
 808                 type = DRM_MODE_CONNECTOR_DVII;
 809                 break;
 810         case DCB_CONNECTOR_DVI_D:
 811                 type = DRM_MODE_CONNECTOR_DVID;
 812                 break;
 813         case DCB_CONNECTOR_HDMI_0:
 814         case DCB_CONNECTOR_HDMI_1:
 815                 type = DRM_MODE_CONNECTOR_HDMIA;
 816                 break;
 817         case DCB_CONNECTOR_LVDS:
 818         case DCB_CONNECTOR_LVDS_SPWG:
 819                 type = DRM_MODE_CONNECTOR_LVDS;
 820                 funcs = &nouveau_connector_funcs_lvds;
 821                 break;
 822         case DCB_CONNECTOR_DP:
 823                 type = DRM_MODE_CONNECTOR_DisplayPort;
 824                 break;
 825         case DCB_CONNECTOR_eDP:
 826                 type = DRM_MODE_CONNECTOR_eDP;
 827                 break;
 828         default:
 829                 NV_ERROR(dev, "unknown connector type: 0x%02x!!\n", dcb->type);
 830                 return ERR_PTR(-EINVAL);
 831         }
 832
 833         nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
 834         if (!nv_connector)
 835                 return ERR_PTR(-ENOMEM);
 836         nv_connector->dcb = dcb;
 837         connector = &nv_connector->base;
 838
 839         /* defaults, will get overridden in detect() */
 840         connector->interlace_allowed = false;
 841         connector->doublescan_allowed = false;
 842
 843         drm_connector_init(dev, connector, funcs, type);
 844         drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
 845
 846         /* Check if we need dithering enabled */
 847         if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
 848                 bool dummy, is_24bit = false;
 849
 850                 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &is_24bit);
 851                 if (ret) {
 852                         NV_ERROR(dev, "Error parsing LVDS table, disabling "
 853                                  "LVDS\n");
 854                         goto fail;
 855                 }
 856
 857                 nv_connector->use_dithering = !is_24bit;
 858         }
 859
 860         /* Init DVI-I specific properties */
 861         if (dcb->type == DCB_CONNECTOR_DVI_I) {
 862                 drm_mode_create_dvi_i_properties(dev);
 863                 drm_connector_attach_property(connector, dev->mode_config.dvi_i_subconnector_property, 0);
 864                 drm_connector_attach_property(connector, dev->mode_config.dvi_i_select_subconnector_property, 0);
 865         }
 866
 867         switch (dcb->type) {
 868         case DCB_CONNECTOR_VGA:
 869                 if (dev_priv->card_type >= NV_50) {
 870                         drm_connector_attach_property(connector,
 871                                         dev->mode_config.scaling_mode_property,
 872                                         nv_connector->scaling_mode);
 873                 }
 874                 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
 875                 /* fall-through */
 876         case DCB_CONNECTOR_TV_0:
 877         case DCB_CONNECTOR_TV_1:
 878         case DCB_CONNECTOR_TV_3:
 879                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
 880                 break;
 881         default:
 882                 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
 883
 884                 drm_connector_attach_property(connector,
 885                                 dev->mode_config.scaling_mode_property,
 886                                 nv_connector->scaling_mode);
 887                 drm_connector_attach_property(connector,
 888                                 dev->mode_config.dithering_mode_property,
 889                                 nv_connector->use_dithering ?
 890                                 DRM_MODE_DITHERING_ON : DRM_MODE_DITHERING_OFF);
 891
 892                 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS) {
 893                         if (dev_priv->card_type >= NV_50)
 894                                 connector->polled = DRM_CONNECTOR_POLL_HPD;
 895                         else
 896                                 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
 897                 }
 898                 break;
 899         }
 900
 901         if (pgpio->irq_register) {
 902                 pgpio->irq_register(dev, nv_connector->dcb->gpio_tag,
 903                                     nouveau_connector_hotplug, connector);
 904         }
 905
 906         drm_sysfs_connector_add(connector);
 907
 908         if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS ||
 909             connector->connector_type == DRM_MODE_CONNECTOR_eDP)
 910                 nouveau_backlight_init(connector);
 911
 912         dcb->drm = connector;
 913         return dcb->drm;
 914
 915 fail:
 916         drm_connector_cleanup(connector);
 917         kfree(connector);
 918         return ERR_PTR(ret);
 919
 920 }
 921
 922 static void
 923 nouveau_connector_hotplug(void *data, int plugged)
 924 {
 925         struct drm_connector *connector = data;
 926         struct drm_device *dev = connector->dev;
 927
 928         NV_INFO(dev, "%splugged %s\n", plugged ? "" : "un",
 929                 drm_get_connector_name(connector));
 930
 931         if (connector->encoder && connector->encoder->crtc &&
 932             connector->encoder->crtc->enabled) {
 933                 struct nouveau_encoder *nv_encoder = nouveau_encoder(connector->encoder);
 934                 struct drm_encoder_helper_funcs *helper =
 935                         connector->encoder->helper_private;
 936
 937                 if (nv_encoder->dcb->type == OUTPUT_DP) {
 938                         if (plugged)
 939                                 helper->dpms(connector->encoder, DRM_MODE_DPMS_ON);
 940                         else
 941                                 helper->dpms(connector->encoder, DRM_MODE_DPMS_OFF);
 942                 }
 943         }
 944
 945         drm_helper_hpd_irq_event(dev);
 946 }