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 #include "nouveau_acpi.h"
  40
  41 #include <subdev/bios/gpio.h>
  42
  43 static void nouveau_connector_hotplug(void *, int);
  44
  45 struct nouveau_encoder *
  46 find_encoder(struct drm_connector *connector, int type)
  47 {
  48         struct drm_device *dev = connector->dev;
  49         struct nouveau_encoder *nv_encoder;
  50         struct drm_mode_object *obj;
  51         int i, id;
  52
  53         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
  54                 id = connector->encoder_ids[i];
  55                 if (!id)
  56                         break;
  57
  58                 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
  59                 if (!obj)
  60                         continue;
  61                 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
  62
  63                 if (type == DCB_OUTPUT_ANY || nv_encoder->dcb->type == type)
  64                         return nv_encoder;
  65         }
  66
  67         return NULL;
  68 }
  69
  70 struct nouveau_connector *
  71 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
  72 {
  73         struct drm_device *dev = to_drm_encoder(encoder)->dev;
  74         struct drm_connector *drm_connector;
  75
  76         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
  77                 if (drm_connector->encoder == to_drm_encoder(encoder))
  78                         return nouveau_connector(drm_connector);
  79         }
  80
  81         return NULL;
  82 }
  83
  84 static void
  85 nouveau_connector_destroy(struct drm_connector *connector)
  86 {
  87         struct nouveau_connector *nv_connector = nouveau_connector(connector);
  88         struct drm_nouveau_private *dev_priv;
  89         struct drm_device *dev;
  90
  91         if (!nv_connector)
  92                 return;
  93
  94         dev = nv_connector->base.dev;
  95         dev_priv = dev->dev_private;
  96         NV_DEBUG_KMS(dev, "\n");
  97
  98         if (nv_connector->hpd != DCB_GPIO_UNUSED) {
  99                 nouveau_gpio_isr_del(dev, 0, nv_connector->hpd, 0xff,
 100                                      nouveau_connector_hotplug, connector);
 101         }
 102
 103         kfree(nv_connector->edid);
 104         drm_sysfs_connector_remove(connector);
 105         drm_connector_cleanup(connector);
 106         kfree(connector);
 107 }
 108
 109 static struct nouveau_i2c_port *
 110 nouveau_connector_ddc_detect(struct drm_connector *connector,
 111                              struct nouveau_encoder **pnv_encoder)
 112 {
 113         struct drm_device *dev = connector->dev;
 114         int i;
 115
 116         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
 117                 struct nouveau_i2c_port *i2c = NULL;
 118                 struct nouveau_encoder *nv_encoder;
 119                 struct drm_mode_object *obj;
 120                 int id;
 121
 122                 id = connector->encoder_ids[i];
 123                 if (!id)
 124                         break;
 125
 126                 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
 127                 if (!obj)
 128                         continue;
 129                 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
 130
 131                 if (nv_encoder->dcb->i2c_index < 0xf)
 132                         i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
 133
 134                 if (i2c && nouveau_probe_i2c_addr(i2c, 0x50)) {
 135                         *pnv_encoder = nv_encoder;
 136                         return i2c;
 137                 }
 138         }
 139
 140         return NULL;
 141 }
 142
 143 static struct nouveau_encoder *
 144 nouveau_connector_of_detect(struct drm_connector *connector)
 145 {
 146 #ifdef __powerpc__
 147         struct drm_device *dev = connector->dev;
 148         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 149         struct nouveau_encoder *nv_encoder;
 150         struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
 151
 152         if (!dn ||
 153             !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
 154               (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
 155                 return NULL;
 156
 157         for_each_child_of_node(dn, cn) {
 158                 const char *name = of_get_property(cn, "name", NULL);
 159                 const void *edid = of_get_property(cn, "EDID", NULL);
 160                 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
 161
 162                 if (nv_encoder->dcb->i2c_index == idx && edid) {
 163                         nv_connector->edid =
 164                                 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 165                         of_node_put(cn);
 166                         return nv_encoder;
 167                 }
 168         }
 169 #endif
 170         return NULL;
 171 }
 172
 173 static void
 174 nouveau_connector_set_encoder(struct drm_connector *connector,
 175                               struct nouveau_encoder *nv_encoder)
 176 {
 177         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 178         struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
 179         struct drm_device *dev = connector->dev;
 180
 181         if (nv_connector->detected_encoder == nv_encoder)
 182                 return;
 183         nv_connector->detected_encoder = nv_encoder;
 184
 185         if (dev_priv->card_type >= NV_50) {
 186                 connector->interlace_allowed = true;
 187                 connector->doublescan_allowed = true;
 188         } else
 189         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
 190             nv_encoder->dcb->type == DCB_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->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 == DCB_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, bool force)
 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_encoder *nv_partner;
 221         struct nouveau_i2c_port *i2c;
 222         int type;
 223
 224         /* Cleanup the previous EDID block. */
 225         if (nv_connector->edid) {
 226                 drm_mode_connector_update_edid_property(connector, NULL);
 227                 kfree(nv_connector->edid);
 228                 nv_connector->edid = NULL;
 229         }
 230
 231         i2c = nouveau_connector_ddc_detect(connector, &nv_encoder);
 232         if (i2c) {
 233                 nv_connector->edid = drm_get_edid(connector, nouveau_i2c_adapter(i2c));
 234                 drm_mode_connector_update_edid_property(connector,
 235                                                         nv_connector->edid);
 236                 if (!nv_connector->edid) {
 237                         NV_ERROR(dev, "DDC responded, but no EDID for %s\n",
 238                                  drm_get_connector_name(connector));
 239                         goto detect_analog;
 240                 }
 241
 242                 if (nv_encoder->dcb->type == DCB_OUTPUT_DP &&
 243                     !nouveau_dp_detect(to_drm_encoder(nv_encoder))) {
 244                         NV_ERROR(dev, "Detected %s, but failed init\n",
 245                                  drm_get_connector_name(connector));
 246                         return connector_status_disconnected;
 247                 }
 248
 249                 /* Override encoder type for DVI-I based on whether EDID
 250                  * says the display is digital or analog, both use the
 251                  * same i2c channel so the value returned from ddc_detect
 252                  * isn't necessarily correct.
 253                  */
 254                 nv_partner = NULL;
 255                 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
 256                         nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
 257                 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
 258                         nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
 259
 260                 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
 261                                     nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
 262                                    (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
 263                                     nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
 264                         if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
 265                                 type = DCB_OUTPUT_TMDS;
 266                         else
 267                                 type = DCB_OUTPUT_ANALOG;
 268
 269                         nv_encoder = find_encoder(connector, type);
 270                 }
 271
 272                 nouveau_connector_set_encoder(connector, nv_encoder);
 273                 return connector_status_connected;
 274         }
 275
 276         nv_encoder = nouveau_connector_of_detect(connector);
 277         if (nv_encoder) {
 278                 nouveau_connector_set_encoder(connector, nv_encoder);
 279                 return connector_status_connected;
 280         }
 281
 282 detect_analog:
 283         nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
 284         if (!nv_encoder && !nouveau_tv_disable)
 285                 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
 286         if (nv_encoder && force) {
 287                 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 288                 struct drm_encoder_helper_funcs *helper =
 289                                                 encoder->helper_private;
 290
 291                 if (helper->detect(encoder, connector) ==
 292                                                 connector_status_connected) {
 293                         nouveau_connector_set_encoder(connector, nv_encoder);
 294                         return connector_status_connected;
 295                 }
 296
 297         }
 298
 299         return connector_status_disconnected;
 300 }
 301
 302 static enum drm_connector_status
 303 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
 304 {
 305         struct drm_device *dev = connector->dev;
 306         struct drm_nouveau_private *dev_priv = dev->dev_private;
 307         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 308         struct nouveau_encoder *nv_encoder = NULL;
 309         enum drm_connector_status status = connector_status_disconnected;
 310
 311         /* Cleanup the previous EDID block. */
 312         if (nv_connector->edid) {
 313                 drm_mode_connector_update_edid_property(connector, NULL);
 314                 kfree(nv_connector->edid);
 315                 nv_connector->edid = NULL;
 316         }
 317
 318         nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
 319         if (!nv_encoder)
 320                 return connector_status_disconnected;
 321
 322         /* Try retrieving EDID via DDC */
 323         if (!dev_priv->vbios.fp_no_ddc) {
 324                 status = nouveau_connector_detect(connector, force);
 325                 if (status == connector_status_connected)
 326                         goto out;
 327         }
 328
 329         /* On some laptops (Sony, i'm looking at you) there appears to
 330          * be no direct way of accessing the panel's EDID.  The only
 331          * option available to us appears to be to ask ACPI for help..
 332          *
 333          * It's important this check's before trying straps, one of the
 334          * said manufacturer's laptops are configured in such a way
 335          * the nouveau decides an entry in the VBIOS FP mode table is
 336          * valid - it's not (rh#613284)
 337          */
 338         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
 339                 if (!(nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
 340                         status = connector_status_connected;
 341                         goto out;
 342                 }
 343         }
 344
 345         /* If no EDID found above, and the VBIOS indicates a hardcoded
 346          * modeline is avalilable for the panel, set it as the panel's
 347          * native mode and exit.
 348          */
 349         if (nouveau_bios_fp_mode(dev, NULL) && (dev_priv->vbios.fp_no_ddc ||
 350             nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
 351                 status = connector_status_connected;
 352                 goto out;
 353         }
 354
 355         /* Still nothing, some VBIOS images have a hardcoded EDID block
 356          * stored for the panel stored in them.
 357          */
 358         if (!dev_priv->vbios.fp_no_ddc) {
 359                 struct edid *edid =
 360                         (struct edid *)nouveau_bios_embedded_edid(dev);
 361                 if (edid) {
 362                         nv_connector->edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
 363                         *(nv_connector->edid) = *edid;
 364                         status = connector_status_connected;
 365                 }
 366         }
 367
 368 out:
 369 #if defined(CONFIG_ACPI_BUTTON) || \
 370         (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
 371         if (status == connector_status_connected &&
 372             !nouveau_ignorelid && !acpi_lid_open())
 373                 status = connector_status_unknown;
 374 #endif
 375
 376         drm_mode_connector_update_edid_property(connector, nv_connector->edid);
 377         nouveau_connector_set_encoder(connector, nv_encoder);
 378         return status;
 379 }
 380
 381 static void
 382 nouveau_connector_force(struct drm_connector *connector)
 383 {
 384         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 385         struct nouveau_encoder *nv_encoder;
 386         int type;
 387
 388         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 389                 if (connector->force == DRM_FORCE_ON_DIGITAL)
 390                         type = DCB_OUTPUT_TMDS;
 391                 else
 392                         type = DCB_OUTPUT_ANALOG;
 393         } else
 394                 type = DCB_OUTPUT_ANY;
 395
 396         nv_encoder = find_encoder(connector, type);
 397         if (!nv_encoder) {
 398                 NV_ERROR(connector->dev, "can't find encoder to force %s on!\n",
 399                          drm_get_connector_name(connector));
 400                 connector->status = connector_status_disconnected;
 401                 return;
 402         }
 403
 404         nouveau_connector_set_encoder(connector, nv_encoder);
 405 }
 406
 407 static int
 408 nouveau_connector_set_property(struct drm_connector *connector,
 409                                struct drm_property *property, uint64_t value)
 410 {
 411         struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
 412         struct nouveau_display_engine *disp = &dev_priv->engine.display;
 413         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 414         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 415         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 416         struct drm_device *dev = connector->dev;
 417         struct nouveau_crtc *nv_crtc;
 418         int ret;
 419
 420         nv_crtc = NULL;
 421         if (connector->encoder && connector->encoder->crtc)
 422                 nv_crtc = nouveau_crtc(connector->encoder->crtc);
 423
 424         /* Scaling mode */
 425         if (property == dev->mode_config.scaling_mode_property) {
 426                 bool modeset = false;
 427
 428                 switch (value) {
 429                 case DRM_MODE_SCALE_NONE:
 430                 case DRM_MODE_SCALE_FULLSCREEN:
 431                 case DRM_MODE_SCALE_CENTER:
 432                 case DRM_MODE_SCALE_ASPECT:
 433                         break;
 434                 default:
 435                         return -EINVAL;
 436                 }
 437
 438                 /* LVDS always needs gpu scaling */
 439                 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS &&
 440                     value == DRM_MODE_SCALE_NONE)
 441                         return -EINVAL;
 442
 443                 /* Changing between GPU and panel scaling requires a full
 444                  * modeset
 445                  */
 446                 if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) ||
 447                     (value == DRM_MODE_SCALE_NONE))
 448                         modeset = true;
 449                 nv_connector->scaling_mode = value;
 450
 451                 if (!nv_crtc)
 452                         return 0;
 453
 454                 if (modeset || !nv_crtc->set_scale) {
 455                         ret = drm_crtc_helper_set_mode(&nv_crtc->base,
 456                                                         &nv_crtc->base.mode,
 457                                                         nv_crtc->base.x,
 458                                                         nv_crtc->base.y, NULL);
 459                         if (!ret)
 460                                 return -EINVAL;
 461                 } else {
 462                         ret = nv_crtc->set_scale(nv_crtc, true);
 463                         if (ret)
 464                                 return ret;
 465                 }
 466
 467                 return 0;
 468         }
 469
 470         /* Underscan */
 471         if (property == disp->underscan_property) {
 472                 if (nv_connector->underscan != value) {
 473                         nv_connector->underscan = value;
 474                         if (!nv_crtc || !nv_crtc->set_scale)
 475                                 return 0;
 476
 477                         return nv_crtc->set_scale(nv_crtc, true);
 478                 }
 479
 480                 return 0;
 481         }
 482
 483         if (property == disp->underscan_hborder_property) {
 484                 if (nv_connector->underscan_hborder != value) {
 485                         nv_connector->underscan_hborder = value;
 486                         if (!nv_crtc || !nv_crtc->set_scale)
 487                                 return 0;
 488
 489                         return nv_crtc->set_scale(nv_crtc, true);
 490                 }
 491
 492                 return 0;
 493         }
 494
 495         if (property == disp->underscan_vborder_property) {
 496                 if (nv_connector->underscan_vborder != value) {
 497                         nv_connector->underscan_vborder = value;
 498                         if (!nv_crtc || !nv_crtc->set_scale)
 499                                 return 0;
 500
 501                         return nv_crtc->set_scale(nv_crtc, true);
 502                 }
 503
 504                 return 0;
 505         }
 506
 507         /* Dithering */
 508         if (property == disp->dithering_mode) {
 509                 nv_connector->dithering_mode = value;
 510                 if (!nv_crtc || !nv_crtc->set_dither)
 511                         return 0;
 512
 513                 return nv_crtc->set_dither(nv_crtc, true);
 514         }
 515
 516         if (property == disp->dithering_depth) {
 517                 nv_connector->dithering_depth = value;
 518                 if (!nv_crtc || !nv_crtc->set_dither)
 519                         return 0;
 520
 521                 return nv_crtc->set_dither(nv_crtc, true);
 522         }
 523
 524         if (nv_crtc && nv_crtc->set_color_vibrance) {
 525                 /* Hue */
 526                 if (property == disp->vibrant_hue_property) {
 527                         nv_crtc->vibrant_hue = value - 90;
 528                         return nv_crtc->set_color_vibrance(nv_crtc, true);
 529                 }
 530                 /* Saturation */
 531                 if (property == disp->color_vibrance_property) {
 532                         nv_crtc->color_vibrance = value - 100;
 533                         return nv_crtc->set_color_vibrance(nv_crtc, true);
 534                 }
 535         }
 536
 537         if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
 538                 return get_slave_funcs(encoder)->set_property(
 539                         encoder, connector, property, value);
 540
 541         return -EINVAL;
 542 }
 543
 544 static struct drm_display_mode *
 545 nouveau_connector_native_mode(struct drm_connector *connector)
 546 {
 547         struct drm_connector_helper_funcs *helper = connector->helper_private;
 548         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 549         struct drm_device *dev = connector->dev;
 550         struct drm_display_mode *mode, *largest = NULL;
 551         int high_w = 0, high_h = 0, high_v = 0;
 552
 553         list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
 554                 mode->vrefresh = drm_mode_vrefresh(mode);
 555                 if (helper->mode_valid(connector, mode) != MODE_OK ||
 556                     (mode->flags & DRM_MODE_FLAG_INTERLACE))
 557                         continue;
 558
 559                 /* Use preferred mode if there is one.. */
 560                 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
 561                         NV_DEBUG_KMS(dev, "native mode from preferred\n");
 562                         return drm_mode_duplicate(dev, mode);
 563                 }
 564
 565                 /* Otherwise, take the resolution with the largest width, then
 566                  * height, then vertical refresh
 567                  */
 568                 if (mode->hdisplay < high_w)
 569                         continue;
 570
 571                 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
 572                         continue;
 573
 574                 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
 575                     mode->vrefresh < high_v)
 576                         continue;
 577
 578                 high_w = mode->hdisplay;
 579                 high_h = mode->vdisplay;
 580                 high_v = mode->vrefresh;
 581                 largest = mode;
 582         }
 583
 584         NV_DEBUG_KMS(dev, "native mode from largest: %dx%d@%d\n",
 585                       high_w, high_h, high_v);
 586         return largest ? drm_mode_duplicate(dev, largest) : NULL;
 587 }
 588
 589 struct moderec {
 590         int hdisplay;
 591         int vdisplay;
 592 };
 593
 594 static struct moderec scaler_modes[] = {
 595         { 1920, 1200 },
 596         { 1920, 1080 },
 597         { 1680, 1050 },
 598         { 1600, 1200 },
 599         { 1400, 1050 },
 600         { 1280, 1024 },
 601         { 1280, 960 },
 602         { 1152, 864 },
 603         { 1024, 768 },
 604         { 800, 600 },
 605         { 720, 400 },
 606         { 640, 480 },
 607         { 640, 400 },
 608         { 640, 350 },
 609         {}
 610 };
 611
 612 static int
 613 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 614 {
 615         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 616         struct drm_display_mode *native = nv_connector->native_mode, *m;
 617         struct drm_device *dev = connector->dev;
 618         struct moderec *mode = &scaler_modes[0];
 619         int modes = 0;
 620
 621         if (!native)
 622                 return 0;
 623
 624         while (mode->hdisplay) {
 625                 if (mode->hdisplay <= native->hdisplay &&
 626                     mode->vdisplay <= native->vdisplay) {
 627                         m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
 628                                          drm_mode_vrefresh(native), false,
 629                                          false, false);
 630                         if (!m)
 631                                 continue;
 632
 633                         m->type |= DRM_MODE_TYPE_DRIVER;
 634
 635                         drm_mode_probed_add(connector, m);
 636                         modes++;
 637                 }
 638
 639                 mode++;
 640         }
 641
 642         return modes;
 643 }
 644
 645 static void
 646 nouveau_connector_detect_depth(struct drm_connector *connector)
 647 {
 648         struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
 649         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 650         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 651         struct nvbios *bios = &dev_priv->vbios;
 652         struct drm_display_mode *mode = nv_connector->native_mode;
 653         bool duallink;
 654
 655         /* if the edid is feeling nice enough to provide this info, use it */
 656         if (nv_connector->edid && connector->display_info.bpc)
 657                 return;
 658
 659         /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
 660         if (nv_connector->type == DCB_CONNECTOR_eDP) {
 661                 connector->display_info.bpc = 6;
 662                 return;
 663         }
 664
 665         /* we're out of options unless we're LVDS, default to 8bpc */
 666         if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
 667                 connector->display_info.bpc = 8;
 668                 return;
 669         }
 670
 671         connector->display_info.bpc = 6;
 672
 673         /* LVDS: panel straps */
 674         if (bios->fp_no_ddc) {
 675                 if (bios->fp.if_is_24bit)
 676                         connector->display_info.bpc = 8;
 677                 return;
 678         }
 679
 680         /* LVDS: DDC panel, need to first determine the number of links to
 681          * know which if_is_24bit flag to check...
 682          */
 683         if (nv_connector->edid &&
 684             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
 685                 duallink = ((u8 *)nv_connector->edid)[121] == 2;
 686         else
 687                 duallink = mode->clock >= bios->fp.duallink_transition_clk;
 688
 689         if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
 690             ( duallink && (bios->fp.strapless_is_24bit & 2)))
 691                 connector->display_info.bpc = 8;
 692 }
 693
 694 static int
 695 nouveau_connector_get_modes(struct drm_connector *connector)
 696 {
 697         struct drm_device *dev = connector->dev;
 698         struct drm_nouveau_private *dev_priv = dev->dev_private;
 699         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 700         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 701         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 702         int ret = 0;
 703
 704         /* destroy the native mode, the attached monitor could have changed.
 705          */
 706         if (nv_connector->native_mode) {
 707                 drm_mode_destroy(dev, nv_connector->native_mode);
 708                 nv_connector->native_mode = NULL;
 709         }
 710
 711         if (nv_connector->edid)
 712                 ret = drm_add_edid_modes(connector, nv_connector->edid);
 713         else
 714         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
 715             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
 716              dev_priv->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
 717                 struct drm_display_mode mode;
 718
 719                 nouveau_bios_fp_mode(dev, &mode);
 720                 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
 721         }
 722
 723         /* Determine display colour depth for everything except LVDS now,
 724          * DP requires this before mode_valid() is called.
 725          */
 726         if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
 727                 nouveau_connector_detect_depth(connector);
 728
 729         /* Find the native mode if this is a digital panel, if we didn't
 730          * find any modes through DDC previously add the native mode to
 731          * the list of modes.
 732          */
 733         if (!nv_connector->native_mode)
 734                 nv_connector->native_mode =
 735                         nouveau_connector_native_mode(connector);
 736         if (ret == 0 && nv_connector->native_mode) {
 737                 struct drm_display_mode *mode;
 738
 739                 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
 740                 drm_mode_probed_add(connector, mode);
 741                 ret = 1;
 742         }
 743
 744         /* Determine LVDS colour depth, must happen after determining
 745          * "native" mode as some VBIOS tables require us to use the
 746          * pixel clock as part of the lookup...
 747          */
 748         if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
 749                 nouveau_connector_detect_depth(connector);
 750
 751         if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
 752                 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
 753
 754         if (nv_connector->type == DCB_CONNECTOR_LVDS ||
 755             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
 756             nv_connector->type == DCB_CONNECTOR_eDP)
 757                 ret += nouveau_connector_scaler_modes_add(connector);
 758
 759         return ret;
 760 }
 761
 762 static unsigned
 763 get_tmds_link_bandwidth(struct drm_connector *connector)
 764 {
 765         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 766         struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
 767         struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
 768
 769         if (dcb->location != DCB_LOC_ON_CHIP ||
 770             dev_priv->chipset >= 0x46)
 771                 return 165000;
 772         else if (dev_priv->chipset >= 0x40)
 773                 return 155000;
 774         else if (dev_priv->chipset >= 0x18)
 775                 return 135000;
 776         else
 777                 return 112000;
 778 }
 779
 780 static int
 781 nouveau_connector_mode_valid(struct drm_connector *connector,
 782                              struct drm_display_mode *mode)
 783 {
 784         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 785         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 786         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 787         unsigned min_clock = 25000, max_clock = min_clock;
 788         unsigned clock = mode->clock;
 789
 790         switch (nv_encoder->dcb->type) {
 791         case DCB_OUTPUT_LVDS:
 792                 if (nv_connector->native_mode &&
 793                     (mode->hdisplay > nv_connector->native_mode->hdisplay ||
 794                      mode->vdisplay > nv_connector->native_mode->vdisplay))
 795                         return MODE_PANEL;
 796
 797                 min_clock = 0;
 798                 max_clock = 400000;
 799                 break;
 800         case DCB_OUTPUT_TMDS:
 801                 max_clock = get_tmds_link_bandwidth(connector);
 802                 if (nouveau_duallink && nv_encoder->dcb->duallink_possible)
 803                         max_clock *= 2;
 804                 break;
 805         case DCB_OUTPUT_ANALOG:
 806                 max_clock = nv_encoder->dcb->crtconf.maxfreq;
 807                 if (!max_clock)
 808                         max_clock = 350000;
 809                 break;
 810         case DCB_OUTPUT_TV:
 811                 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
 812         case DCB_OUTPUT_DP:
 813                 max_clock  = nv_encoder->dp.link_nr;
 814                 max_clock *= nv_encoder->dp.link_bw;
 815                 clock = clock * (connector->display_info.bpc * 3) / 10;
 816                 break;
 817         default:
 818                 BUG_ON(1);
 819                 return MODE_BAD;
 820         }
 821
 822         if (clock < min_clock)
 823                 return MODE_CLOCK_LOW;
 824
 825         if (clock > max_clock)
 826                 return MODE_CLOCK_HIGH;
 827
 828         return MODE_OK;
 829 }
 830
 831 static struct drm_encoder *
 832 nouveau_connector_best_encoder(struct drm_connector *connector)
 833 {
 834         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 835
 836         if (nv_connector->detected_encoder)
 837                 return to_drm_encoder(nv_connector->detected_encoder);
 838
 839         return NULL;
 840 }
 841
 842 static const struct drm_connector_helper_funcs
 843 nouveau_connector_helper_funcs = {
 844         .get_modes = nouveau_connector_get_modes,
 845         .mode_valid = nouveau_connector_mode_valid,
 846         .best_encoder = nouveau_connector_best_encoder,
 847 };
 848
 849 static const struct drm_connector_funcs
 850 nouveau_connector_funcs = {
 851         .dpms = drm_helper_connector_dpms,
 852         .save = NULL,
 853         .restore = NULL,
 854         .detect = nouveau_connector_detect,
 855         .destroy = nouveau_connector_destroy,
 856         .fill_modes = drm_helper_probe_single_connector_modes,
 857         .set_property = nouveau_connector_set_property,
 858         .force = nouveau_connector_force
 859 };
 860
 861 static const struct drm_connector_funcs
 862 nouveau_connector_funcs_lvds = {
 863         .dpms = drm_helper_connector_dpms,
 864         .save = NULL,
 865         .restore = NULL,
 866         .detect = nouveau_connector_detect_lvds,
 867         .destroy = nouveau_connector_destroy,
 868         .fill_modes = drm_helper_probe_single_connector_modes,
 869         .set_property = nouveau_connector_set_property,
 870         .force = nouveau_connector_force
 871 };
 872
 873 static int
 874 drm_conntype_from_dcb(enum dcb_connector_type dcb)
 875 {
 876         switch (dcb) {
 877         case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
 878         case DCB_CONNECTOR_TV_0     :
 879         case DCB_CONNECTOR_TV_1     :
 880         case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
 881         case DCB_CONNECTOR_DMS59_0  :
 882         case DCB_CONNECTOR_DMS59_1  :
 883         case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
 884         case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
 885         case DCB_CONNECTOR_LVDS     :
 886         case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
 887         case DCB_CONNECTOR_DMS59_DP0:
 888         case DCB_CONNECTOR_DMS59_DP1:
 889         case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
 890         case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
 891         case DCB_CONNECTOR_HDMI_0   :
 892         case DCB_CONNECTOR_HDMI_1   : return DRM_MODE_CONNECTOR_HDMIA;
 893         default:
 894                 break;
 895         }
 896
 897         return DRM_MODE_CONNECTOR_Unknown;
 898 }
 899
 900 struct drm_connector *
 901 nouveau_connector_create(struct drm_device *dev, int index)
 902 {
 903         const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
 904         struct drm_nouveau_private *dev_priv = dev->dev_private;
 905         struct nouveau_display_engine *disp = &dev_priv->engine.display;
 906         struct nouveau_connector *nv_connector = NULL;
 907         struct drm_connector *connector;
 908         int type, ret = 0;
 909         bool dummy;
 910
 911         NV_DEBUG_KMS(dev, "\n");
 912
 913         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 914                 nv_connector = nouveau_connector(connector);
 915                 if (nv_connector->index == index)
 916                         return connector;
 917         }
 918
 919         nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
 920         if (!nv_connector)
 921                 return ERR_PTR(-ENOMEM);
 922
 923         connector = &nv_connector->base;
 924         nv_connector->index = index;
 925
 926         /* attempt to parse vbios connector type and hotplug gpio */
 927         nv_connector->dcb = olddcb_conn(dev, index);
 928         if (nv_connector->dcb) {
 929                 static const u8 hpd[16] = {
 930                         0xff, 0x07, 0x08, 0xff, 0xff, 0x51, 0x52, 0xff,
 931                         0xff, 0xff, 0xff, 0xff, 0xff, 0x5e, 0x5f, 0x60,
 932                 };
 933
 934                 u32 entry = ROM16(nv_connector->dcb[0]);
 935                 if (olddcb_conntab(dev)[3] >= 4)
 936                         entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
 937
 938                 nv_connector->hpd = ffs((entry & 0x07033000) >> 12);
 939                 nv_connector->hpd = hpd[nv_connector->hpd];
 940
 941                 nv_connector->type = nv_connector->dcb[0];
 942                 if (drm_conntype_from_dcb(nv_connector->type) ==
 943                                           DRM_MODE_CONNECTOR_Unknown) {
 944                         NV_WARN(dev, "unknown connector type %02x\n",
 945                                 nv_connector->type);
 946                         nv_connector->type = DCB_CONNECTOR_NONE;
 947                 }
 948
 949                 /* Gigabyte NX85T */
 950                 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
 951                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
 952                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
 953                 }
 954
 955                 /* Gigabyte GV-NX86T512H */
 956                 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
 957                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
 958                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
 959                 }
 960         } else {
 961                 nv_connector->type = DCB_CONNECTOR_NONE;
 962                 nv_connector->hpd = DCB_GPIO_UNUSED;
 963         }
 964
 965         /* no vbios data, or an unknown dcb connector type - attempt to
 966          * figure out something suitable ourselves
 967          */
 968         if (nv_connector->type == DCB_CONNECTOR_NONE) {
 969                 struct drm_nouveau_private *dev_priv = dev->dev_private;
 970                 struct dcb_table *dcbt = &dev_priv->vbios.dcb;
 971                 u32 encoders = 0;
 972                 int i;
 973
 974                 for (i = 0; i < dcbt->entries; i++) {
 975                         if (dcbt->entry[i].connector == nv_connector->index)
 976                                 encoders |= (1 << dcbt->entry[i].type);
 977                 }
 978
 979                 if (encoders & (1 << DCB_OUTPUT_DP)) {
 980                         if (encoders & (1 << DCB_OUTPUT_TMDS))
 981                                 nv_connector->type = DCB_CONNECTOR_DP;
 982                         else
 983                                 nv_connector->type = DCB_CONNECTOR_eDP;
 984                 } else
 985                 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
 986                         if (encoders & (1 << DCB_OUTPUT_ANALOG))
 987                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
 988                         else
 989                                 nv_connector->type = DCB_CONNECTOR_DVI_D;
 990                 } else
 991                 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
 992                         nv_connector->type = DCB_CONNECTOR_VGA;
 993                 } else
 994                 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
 995                         nv_connector->type = DCB_CONNECTOR_LVDS;
 996                 } else
 997                 if (encoders & (1 << DCB_OUTPUT_TV)) {
 998                         nv_connector->type = DCB_CONNECTOR_TV_0;
 999                 }
1000         }
1001
1002         type = drm_conntype_from_dcb(nv_connector->type);
1003         if (type == DRM_MODE_CONNECTOR_LVDS) {
1004                 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1005                 if (ret) {
1006                         NV_ERROR(dev, "Error parsing LVDS table, disabling\n");
1007                         kfree(nv_connector);
1008                         return ERR_PTR(ret);
1009                 }
1010
1011                 funcs = &nouveau_connector_funcs_lvds;
1012         } else {
1013                 funcs = &nouveau_connector_funcs;
1014         }
1015
1016         /* defaults, will get overridden in detect() */
1017         connector->interlace_allowed = false;
1018         connector->doublescan_allowed = false;
1019
1020         drm_connector_init(dev, connector, funcs, type);
1021         drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1022
1023         /* Init DVI-I specific properties */
1024         if (nv_connector->type == DCB_CONNECTOR_DVI_I)
1025                 drm_connector_attach_property(connector, dev->mode_config.dvi_i_subconnector_property, 0);
1026
1027         /* Add overscan compensation options to digital outputs */
1028         if (disp->underscan_property &&
1029             (type == DRM_MODE_CONNECTOR_DVID ||
1030              type == DRM_MODE_CONNECTOR_DVII ||
1031              type == DRM_MODE_CONNECTOR_HDMIA ||
1032              type == DRM_MODE_CONNECTOR_DisplayPort)) {
1033                 drm_connector_attach_property(connector,
1034                                               disp->underscan_property,
1035                                               UNDERSCAN_OFF);
1036                 drm_connector_attach_property(connector,
1037                                               disp->underscan_hborder_property,
1038                                               0);
1039                 drm_connector_attach_property(connector,
1040                                               disp->underscan_vborder_property,
1041                                               0);
1042         }
1043
1044         /* Add hue and saturation options */
1045         if (disp->vibrant_hue_property)
1046                 drm_connector_attach_property(connector,
1047                                               disp->vibrant_hue_property,
1048                                               90);
1049         if (disp->color_vibrance_property)
1050                 drm_connector_attach_property(connector,
1051                                               disp->color_vibrance_property,
1052                                               150);
1053
1054         switch (nv_connector->type) {
1055         case DCB_CONNECTOR_VGA:
1056                 if (dev_priv->card_type >= NV_50) {
1057                         drm_connector_attach_property(connector,
1058                                         dev->mode_config.scaling_mode_property,
1059                                         nv_connector->scaling_mode);
1060                 }
1061                 /* fall-through */
1062         case DCB_CONNECTOR_TV_0:
1063         case DCB_CONNECTOR_TV_1:
1064         case DCB_CONNECTOR_TV_3:
1065                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1066                 break;
1067         default:
1068                 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1069
1070                 drm_connector_attach_property(connector,
1071                                 dev->mode_config.scaling_mode_property,
1072                                 nv_connector->scaling_mode);
1073                 if (disp->dithering_mode) {
1074                         nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1075                         drm_connector_attach_property(connector,
1076                                                 disp->dithering_mode,
1077                                                 nv_connector->dithering_mode);
1078                 }
1079                 if (disp->dithering_depth) {
1080                         nv_connector->dithering_depth = DITHERING_DEPTH_AUTO;
1081                         drm_connector_attach_property(connector,
1082                                                 disp->dithering_depth,
1083                                                 nv_connector->dithering_depth);
1084                 }
1085                 break;
1086         }
1087
1088         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1089         if (nv_connector->hpd != DCB_GPIO_UNUSED) {
1090                 ret = nouveau_gpio_isr_add(dev, 0, nv_connector->hpd, 0xff,
1091                                            nouveau_connector_hotplug,
1092                                            connector);
1093                 if (ret == 0)
1094                         connector->polled = DRM_CONNECTOR_POLL_HPD;
1095         }
1096
1097         drm_sysfs_connector_add(connector);
1098         return connector;
1099 }
1100
1101 static void
1102 nouveau_connector_hotplug(void *data, int plugged)
1103 {
1104         struct drm_connector *connector = data;
1105         struct drm_device *dev = connector->dev;
1106
1107         NV_DEBUG(dev, "%splugged %s\n", plugged ? "" : "un",
1108                  drm_get_connector_name(connector));
1109
1110         if (plugged)
1111                 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
1112         else
1113                 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
1114
1115         drm_helper_hpd_irq_event(dev);
1116 }