linux/drivers/gpu/drm/nouveau/nouveau_connector.c
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   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 <linux/pm_runtime.h>
  30#include <linux/vga_switcheroo.h>
  31
  32#include <drm/drmP.h>
  33#include <drm/drm_atomic_helper.h>
  34#include <drm/drm_edid.h>
  35#include <drm/drm_crtc_helper.h>
  36#include <drm/drm_atomic.h>
  37
  38#include "nouveau_reg.h"
  39#include "nouveau_drv.h"
  40#include "dispnv04/hw.h"
  41#include "nouveau_acpi.h"
  42
  43#include "nouveau_display.h"
  44#include "nouveau_connector.h"
  45#include "nouveau_encoder.h"
  46#include "nouveau_crtc.h"
  47
  48#include <nvif/class.h>
  49#include <nvif/cl0046.h>
  50#include <nvif/event.h>
  51
  52struct drm_display_mode *
  53nouveau_conn_native_mode(struct drm_connector *connector)
  54{
  55        const struct drm_connector_helper_funcs *helper = connector->helper_private;
  56        struct nouveau_drm *drm = nouveau_drm(connector->dev);
  57        struct drm_device *dev = connector->dev;
  58        struct drm_display_mode *mode, *largest = NULL;
  59        int high_w = 0, high_h = 0, high_v = 0;
  60
  61        list_for_each_entry(mode, &connector->probed_modes, head) {
  62                mode->vrefresh = drm_mode_vrefresh(mode);
  63                if (helper->mode_valid(connector, mode) != MODE_OK ||
  64                    (mode->flags & DRM_MODE_FLAG_INTERLACE))
  65                        continue;
  66
  67                /* Use preferred mode if there is one.. */
  68                if (mode->type & DRM_MODE_TYPE_PREFERRED) {
  69                        NV_DEBUG(drm, "native mode from preferred\n");
  70                        return drm_mode_duplicate(dev, mode);
  71                }
  72
  73                /* Otherwise, take the resolution with the largest width, then
  74                 * height, then vertical refresh
  75                 */
  76                if (mode->hdisplay < high_w)
  77                        continue;
  78
  79                if (mode->hdisplay == high_w && mode->vdisplay < high_h)
  80                        continue;
  81
  82                if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
  83                    mode->vrefresh < high_v)
  84                        continue;
  85
  86                high_w = mode->hdisplay;
  87                high_h = mode->vdisplay;
  88                high_v = mode->vrefresh;
  89                largest = mode;
  90        }
  91
  92        NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
  93                      high_w, high_h, high_v);
  94        return largest ? drm_mode_duplicate(dev, largest) : NULL;
  95}
  96
  97int
  98nouveau_conn_atomic_get_property(struct drm_connector *connector,
  99                                 const struct drm_connector_state *state,
 100                                 struct drm_property *property, u64 *val)
 101{
 102        struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
 103        struct nouveau_display *disp = nouveau_display(connector->dev);
 104        struct drm_device *dev = connector->dev;
 105
 106        if (property == dev->mode_config.scaling_mode_property)
 107                *val = asyc->scaler.mode;
 108        else if (property == disp->underscan_property)
 109                *val = asyc->scaler.underscan.mode;
 110        else if (property == disp->underscan_hborder_property)
 111                *val = asyc->scaler.underscan.hborder;
 112        else if (property == disp->underscan_vborder_property)
 113                *val = asyc->scaler.underscan.vborder;
 114        else if (property == disp->dithering_mode)
 115                *val = asyc->dither.mode;
 116        else if (property == disp->dithering_depth)
 117                *val = asyc->dither.depth;
 118        else if (property == disp->vibrant_hue_property)
 119                *val = asyc->procamp.vibrant_hue;
 120        else if (property == disp->color_vibrance_property)
 121                *val = asyc->procamp.color_vibrance;
 122        else
 123                return -EINVAL;
 124
 125        return 0;
 126}
 127
 128int
 129nouveau_conn_atomic_set_property(struct drm_connector *connector,
 130                                 struct drm_connector_state *state,
 131                                 struct drm_property *property, u64 val)
 132{
 133        struct drm_device *dev = connector->dev;
 134        struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
 135        struct nouveau_display *disp = nouveau_display(dev);
 136
 137        if (property == dev->mode_config.scaling_mode_property) {
 138                switch (val) {
 139                case DRM_MODE_SCALE_NONE:
 140                        /* We allow 'None' for EDID modes, even on a fixed
 141                         * panel (some exist with support for lower refresh
 142                         * rates, which people might want to use for power-
 143                         * saving purposes).
 144                         *
 145                         * Non-EDID modes will force the use of GPU scaling
 146                         * to the native mode regardless of this setting.
 147                         */
 148                        switch (connector->connector_type) {
 149                        case DRM_MODE_CONNECTOR_LVDS:
 150                        case DRM_MODE_CONNECTOR_eDP:
 151                                /* ... except prior to G80, where the code
 152                                 * doesn't support such things.
 153                                 */
 154                                if (disp->disp.oclass < NV50_DISP)
 155                                        return -EINVAL;
 156                                break;
 157                        default:
 158                                break;
 159                        }
 160                case DRM_MODE_SCALE_FULLSCREEN:
 161                case DRM_MODE_SCALE_CENTER:
 162                case DRM_MODE_SCALE_ASPECT:
 163                        break;
 164                default:
 165                        return -EINVAL;
 166                }
 167
 168                if (asyc->scaler.mode != val) {
 169                        asyc->scaler.mode = val;
 170                        asyc->set.scaler = true;
 171                }
 172        } else
 173        if (property == disp->underscan_property) {
 174                if (asyc->scaler.underscan.mode != val) {
 175                        asyc->scaler.underscan.mode = val;
 176                        asyc->set.scaler = true;
 177                }
 178        } else
 179        if (property == disp->underscan_hborder_property) {
 180                if (asyc->scaler.underscan.hborder != val) {
 181                        asyc->scaler.underscan.hborder = val;
 182                        asyc->set.scaler = true;
 183                }
 184        } else
 185        if (property == disp->underscan_vborder_property) {
 186                if (asyc->scaler.underscan.vborder != val) {
 187                        asyc->scaler.underscan.vborder = val;
 188                        asyc->set.scaler = true;
 189                }
 190        } else
 191        if (property == disp->dithering_mode) {
 192                if (asyc->dither.mode != val) {
 193                        asyc->dither.mode = val;
 194                        asyc->set.dither = true;
 195                }
 196        } else
 197        if (property == disp->dithering_depth) {
 198                if (asyc->dither.mode != val) {
 199                        asyc->dither.depth = val;
 200                        asyc->set.dither = true;
 201                }
 202        } else
 203        if (property == disp->vibrant_hue_property) {
 204                if (asyc->procamp.vibrant_hue != val) {
 205                        asyc->procamp.vibrant_hue = val;
 206                        asyc->set.procamp = true;
 207                }
 208        } else
 209        if (property == disp->color_vibrance_property) {
 210                if (asyc->procamp.color_vibrance != val) {
 211                        asyc->procamp.color_vibrance = val;
 212                        asyc->set.procamp = true;
 213                }
 214        } else {
 215                return -EINVAL;
 216        }
 217
 218        return 0;
 219}
 220
 221void
 222nouveau_conn_atomic_destroy_state(struct drm_connector *connector,
 223                                  struct drm_connector_state *state)
 224{
 225        struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
 226        __drm_atomic_helper_connector_destroy_state(&asyc->state);
 227        kfree(asyc);
 228}
 229
 230struct drm_connector_state *
 231nouveau_conn_atomic_duplicate_state(struct drm_connector *connector)
 232{
 233        struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
 234        struct nouveau_conn_atom *asyc;
 235        if (!(asyc = kmalloc(sizeof(*asyc), GFP_KERNEL)))
 236                return NULL;
 237        __drm_atomic_helper_connector_duplicate_state(connector, &asyc->state);
 238        asyc->dither = armc->dither;
 239        asyc->scaler = armc->scaler;
 240        asyc->procamp = armc->procamp;
 241        asyc->set.mask = 0;
 242        return &asyc->state;
 243}
 244
 245void
 246nouveau_conn_reset(struct drm_connector *connector)
 247{
 248        struct nouveau_conn_atom *asyc;
 249
 250        if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL))))
 251                return;
 252
 253        if (connector->state)
 254                __drm_atomic_helper_connector_destroy_state(connector->state);
 255        __drm_atomic_helper_connector_reset(connector, &asyc->state);
 256        asyc->dither.mode = DITHERING_MODE_AUTO;
 257        asyc->dither.depth = DITHERING_DEPTH_AUTO;
 258        asyc->scaler.mode = DRM_MODE_SCALE_NONE;
 259        asyc->scaler.underscan.mode = UNDERSCAN_OFF;
 260        asyc->procamp.color_vibrance = 150;
 261        asyc->procamp.vibrant_hue = 90;
 262
 263        if (nouveau_display(connector->dev)->disp.oclass < NV50_DISP) {
 264                switch (connector->connector_type) {
 265                case DRM_MODE_CONNECTOR_LVDS:
 266                        /* See note in nouveau_conn_atomic_set_property(). */
 267                        asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN;
 268                        break;
 269                default:
 270                        break;
 271                }
 272        }
 273}
 274
 275void
 276nouveau_conn_attach_properties(struct drm_connector *connector)
 277{
 278        struct drm_device *dev = connector->dev;
 279        struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
 280        struct nouveau_display *disp = nouveau_display(dev);
 281
 282        /* Init DVI-I specific properties. */
 283        if (connector->connector_type == DRM_MODE_CONNECTOR_DVII)
 284                drm_object_attach_property(&connector->base, dev->mode_config.
 285                                           dvi_i_subconnector_property, 0);
 286
 287        /* Add overscan compensation options to digital outputs. */
 288        if (disp->underscan_property &&
 289            (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
 290             connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
 291             connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 292             connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) {
 293                drm_object_attach_property(&connector->base,
 294                                           disp->underscan_property,
 295                                           UNDERSCAN_OFF);
 296                drm_object_attach_property(&connector->base,
 297                                           disp->underscan_hborder_property, 0);
 298                drm_object_attach_property(&connector->base,
 299                                           disp->underscan_vborder_property, 0);
 300        }
 301
 302        /* Add hue and saturation options. */
 303        if (disp->vibrant_hue_property)
 304                drm_object_attach_property(&connector->base,
 305                                           disp->vibrant_hue_property,
 306                                           armc->procamp.vibrant_hue);
 307        if (disp->color_vibrance_property)
 308                drm_object_attach_property(&connector->base,
 309                                           disp->color_vibrance_property,
 310                                           armc->procamp.color_vibrance);
 311
 312        /* Scaling mode property. */
 313        switch (connector->connector_type) {
 314        case DRM_MODE_CONNECTOR_TV:
 315                break;
 316        case DRM_MODE_CONNECTOR_VGA:
 317                if (disp->disp.oclass < NV50_DISP)
 318                        break; /* Can only scale on DFPs. */
 319                /* Fall-through. */
 320        default:
 321                drm_object_attach_property(&connector->base, dev->mode_config.
 322                                           scaling_mode_property,
 323                                           armc->scaler.mode);
 324                break;
 325        }
 326
 327        /* Dithering properties. */
 328        switch (connector->connector_type) {
 329        case DRM_MODE_CONNECTOR_TV:
 330        case DRM_MODE_CONNECTOR_VGA:
 331                break;
 332        default:
 333                if (disp->dithering_mode) {
 334                        drm_object_attach_property(&connector->base,
 335                                                   disp->dithering_mode,
 336                                                   armc->dither.mode);
 337                }
 338                if (disp->dithering_depth) {
 339                        drm_object_attach_property(&connector->base,
 340                                                   disp->dithering_depth,
 341                                                   armc->dither.depth);
 342                }
 343                break;
 344        }
 345}
 346
 347MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
 348int nouveau_tv_disable = 0;
 349module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
 350
 351MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
 352int nouveau_ignorelid = 0;
 353module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
 354
 355MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
 356int nouveau_duallink = 1;
 357module_param_named(duallink, nouveau_duallink, int, 0400);
 358
 359MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
 360int nouveau_hdmimhz = 0;
 361module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400);
 362
 363struct nouveau_encoder *
 364find_encoder(struct drm_connector *connector, int type)
 365{
 366        struct drm_device *dev = connector->dev;
 367        struct nouveau_encoder *nv_encoder;
 368        struct drm_encoder *enc;
 369        int i, id;
 370
 371        for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
 372                id = connector->encoder_ids[i];
 373                if (!id)
 374                        break;
 375
 376                enc = drm_encoder_find(dev, NULL, id);
 377                if (!enc)
 378                        continue;
 379                nv_encoder = nouveau_encoder(enc);
 380
 381                if (type == DCB_OUTPUT_ANY ||
 382                    (nv_encoder->dcb && nv_encoder->dcb->type == type))
 383                        return nv_encoder;
 384        }
 385
 386        return NULL;
 387}
 388
 389struct nouveau_connector *
 390nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
 391{
 392        struct drm_device *dev = to_drm_encoder(encoder)->dev;
 393        struct drm_connector *drm_connector;
 394
 395        list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 396                if (drm_connector->encoder == to_drm_encoder(encoder))
 397                        return nouveau_connector(drm_connector);
 398        }
 399
 400        return NULL;
 401}
 402
 403static void
 404nouveau_connector_destroy(struct drm_connector *connector)
 405{
 406        struct nouveau_connector *nv_connector = nouveau_connector(connector);
 407        nvif_notify_fini(&nv_connector->hpd);
 408        kfree(nv_connector->edid);
 409        drm_connector_unregister(connector);
 410        drm_connector_cleanup(connector);
 411        if (nv_connector->aux.transfer)
 412                drm_dp_aux_unregister(&nv_connector->aux);
 413        kfree(connector);
 414}
 415
 416static struct nouveau_encoder *
 417nouveau_connector_ddc_detect(struct drm_connector *connector)
 418{
 419        struct drm_device *dev = connector->dev;
 420        struct nouveau_connector *nv_connector = nouveau_connector(connector);
 421        struct nouveau_drm *drm = nouveau_drm(dev);
 422        struct nvkm_gpio *gpio = nvxx_gpio(&drm->client.device);
 423        struct nouveau_encoder *nv_encoder;
 424        struct drm_encoder *encoder;
 425        int i, panel = -ENODEV;
 426
 427        /* eDP panels need powering on by us (if the VBIOS doesn't default it
 428         * to on) before doing any AUX channel transactions.  LVDS panel power
 429         * is handled by the SOR itself, and not required for LVDS DDC.
 430         */
 431        if (nv_connector->type == DCB_CONNECTOR_eDP) {
 432                panel = nvkm_gpio_get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff);
 433                if (panel == 0) {
 434                        nvkm_gpio_set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1);
 435                        msleep(300);
 436                }
 437        }
 438
 439        for (i = 0; nv_encoder = NULL, i < DRM_CONNECTOR_MAX_ENCODER; i++) {
 440                int id = connector->encoder_ids[i];
 441                if (id == 0)
 442                        break;
 443
 444                encoder = drm_encoder_find(dev, NULL, id);
 445                if (!encoder)
 446                        continue;
 447                nv_encoder = nouveau_encoder(encoder);
 448
 449                if (nv_encoder->dcb->type == DCB_OUTPUT_DP) {
 450                        int ret = nouveau_dp_detect(nv_encoder);
 451                        if (ret == NOUVEAU_DP_MST)
 452                                return NULL;
 453                        if (ret == NOUVEAU_DP_SST)
 454                                break;
 455                } else
 456                if ((vga_switcheroo_handler_flags() &
 457                     VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
 458                    nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
 459                    nv_encoder->i2c) {
 460                        int ret;
 461                        vga_switcheroo_lock_ddc(dev->pdev);
 462                        ret = nvkm_probe_i2c(nv_encoder->i2c, 0x50);
 463                        vga_switcheroo_unlock_ddc(dev->pdev);
 464                        if (ret)
 465                                break;
 466                } else
 467                if (nv_encoder->i2c) {
 468                        if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
 469                                break;
 470                }
 471        }
 472
 473        /* eDP panel not detected, restore panel power GPIO to previous
 474         * state to avoid confusing the SOR for other output types.
 475         */
 476        if (!nv_encoder && panel == 0)
 477                nvkm_gpio_set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, panel);
 478
 479        return nv_encoder;
 480}
 481
 482static struct nouveau_encoder *
 483nouveau_connector_of_detect(struct drm_connector *connector)
 484{
 485#ifdef __powerpc__
 486        struct drm_device *dev = connector->dev;
 487        struct nouveau_connector *nv_connector = nouveau_connector(connector);
 488        struct nouveau_encoder *nv_encoder;
 489        struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
 490
 491        if (!dn ||
 492            !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
 493              (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
 494                return NULL;
 495
 496        for_each_child_of_node(dn, cn) {
 497                const char *name = of_get_property(cn, "name", NULL);
 498                const void *edid = of_get_property(cn, "EDID", NULL);
 499                int idx = name ? name[strlen(name) - 1] - 'A' : 0;
 500
 501                if (nv_encoder->dcb->i2c_index == idx && edid) {
 502                        nv_connector->edid =
 503                                kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 504                        of_node_put(cn);
 505                        return nv_encoder;
 506                }
 507        }
 508#endif
 509        return NULL;
 510}
 511
 512static void
 513nouveau_connector_set_encoder(struct drm_connector *connector,
 514                              struct nouveau_encoder *nv_encoder)
 515{
 516        struct nouveau_connector *nv_connector = nouveau_connector(connector);
 517        struct nouveau_drm *drm = nouveau_drm(connector->dev);
 518        struct drm_device *dev = connector->dev;
 519
 520        if (nv_connector->detected_encoder == nv_encoder)
 521                return;
 522        nv_connector->detected_encoder = nv_encoder;
 523
 524        if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 525                connector->interlace_allowed = true;
 526                connector->doublescan_allowed = true;
 527        } else
 528        if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
 529            nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
 530                connector->doublescan_allowed = false;
 531                connector->interlace_allowed = false;
 532        } else {
 533                connector->doublescan_allowed = true;
 534                if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
 535                    (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
 536                     (dev->pdev->device & 0x0ff0) != 0x0100 &&
 537                     (dev->pdev->device & 0x0ff0) != 0x0150))
 538                        /* HW is broken */
 539                        connector->interlace_allowed = false;
 540                else
 541                        connector->interlace_allowed = true;
 542        }
 543
 544        if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 545                drm_object_property_set_value(&connector->base,
 546                        dev->mode_config.dvi_i_subconnector_property,
 547                        nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
 548                        DRM_MODE_SUBCONNECTOR_DVID :
 549                        DRM_MODE_SUBCONNECTOR_DVIA);
 550        }
 551}
 552
 553static enum drm_connector_status
 554nouveau_connector_detect(struct drm_connector *connector, bool force)
 555{
 556        struct drm_device *dev = connector->dev;
 557        struct nouveau_drm *drm = nouveau_drm(dev);
 558        struct nouveau_connector *nv_connector = nouveau_connector(connector);
 559        struct nouveau_encoder *nv_encoder = NULL;
 560        struct nouveau_encoder *nv_partner;
 561        struct i2c_adapter *i2c;
 562        int type;
 563        int ret;
 564        enum drm_connector_status conn_status = connector_status_disconnected;
 565
 566        /* Cleanup the previous EDID block. */
 567        if (nv_connector->edid) {
 568                drm_mode_connector_update_edid_property(connector, NULL);
 569                kfree(nv_connector->edid);
 570                nv_connector->edid = NULL;
 571        }
 572
 573        /* Outputs are only polled while runtime active, so acquiring a
 574         * runtime PM ref here is unnecessary (and would deadlock upon
 575         * runtime suspend because it waits for polling to finish).
 576         */
 577        if (!drm_kms_helper_is_poll_worker()) {
 578                ret = pm_runtime_get_sync(connector->dev->dev);
 579                if (ret < 0 && ret != -EACCES)
 580                        return conn_status;
 581        }
 582
 583        nv_encoder = nouveau_connector_ddc_detect(connector);
 584        if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
 585                if ((vga_switcheroo_handler_flags() &
 586                     VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
 587                    nv_connector->type == DCB_CONNECTOR_LVDS)
 588                        nv_connector->edid = drm_get_edid_switcheroo(connector,
 589                                                                     i2c);
 590                else
 591                        nv_connector->edid = drm_get_edid(connector, i2c);
 592
 593                drm_mode_connector_update_edid_property(connector,
 594                                                        nv_connector->edid);
 595                if (!nv_connector->edid) {
 596                        NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
 597                                 connector->name);
 598                        goto detect_analog;
 599                }
 600
 601                /* Override encoder type for DVI-I based on whether EDID
 602                 * says the display is digital or analog, both use the
 603                 * same i2c channel so the value returned from ddc_detect
 604                 * isn't necessarily correct.
 605                 */
 606                nv_partner = NULL;
 607                if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
 608                        nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
 609                if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
 610                        nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
 611
 612                if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
 613                                    nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
 614                                   (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
 615                                    nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
 616                        if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
 617                                type = DCB_OUTPUT_TMDS;
 618                        else
 619                                type = DCB_OUTPUT_ANALOG;
 620
 621                        nv_encoder = find_encoder(connector, type);
 622                }
 623
 624                nouveau_connector_set_encoder(connector, nv_encoder);
 625                conn_status = connector_status_connected;
 626                goto out;
 627        }
 628
 629        nv_encoder = nouveau_connector_of_detect(connector);
 630        if (nv_encoder) {
 631                nouveau_connector_set_encoder(connector, nv_encoder);
 632                conn_status = connector_status_connected;
 633                goto out;
 634        }
 635
 636detect_analog:
 637        nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
 638        if (!nv_encoder && !nouveau_tv_disable)
 639                nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
 640        if (nv_encoder && force) {
 641                struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 642                const struct drm_encoder_helper_funcs *helper =
 643                                                encoder->helper_private;
 644
 645                if (helper->detect(encoder, connector) ==
 646                                                connector_status_connected) {
 647                        nouveau_connector_set_encoder(connector, nv_encoder);
 648                        conn_status = connector_status_connected;
 649                        goto out;
 650                }
 651
 652        }
 653
 654 out:
 655
 656        if (!drm_kms_helper_is_poll_worker()) {
 657                pm_runtime_mark_last_busy(connector->dev->dev);
 658                pm_runtime_put_autosuspend(connector->dev->dev);
 659        }
 660
 661        return conn_status;
 662}
 663
 664static enum drm_connector_status
 665nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
 666{
 667        struct drm_device *dev = connector->dev;
 668        struct nouveau_drm *drm = nouveau_drm(dev);
 669        struct nouveau_connector *nv_connector = nouveau_connector(connector);
 670        struct nouveau_encoder *nv_encoder = NULL;
 671        enum drm_connector_status status = connector_status_disconnected;
 672
 673        /* Cleanup the previous EDID block. */
 674        if (nv_connector->edid) {
 675                drm_mode_connector_update_edid_property(connector, NULL);
 676                kfree(nv_connector->edid);
 677                nv_connector->edid = NULL;
 678        }
 679
 680        nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
 681        if (!nv_encoder)
 682                return connector_status_disconnected;
 683
 684        /* Try retrieving EDID via DDC */
 685        if (!drm->vbios.fp_no_ddc) {
 686                status = nouveau_connector_detect(connector, force);
 687                if (status == connector_status_connected)
 688                        goto out;
 689        }
 690
 691        /* On some laptops (Sony, i'm looking at you) there appears to
 692         * be no direct way of accessing the panel's EDID.  The only
 693         * option available to us appears to be to ask ACPI for help..
 694         *
 695         * It's important this check's before trying straps, one of the
 696         * said manufacturer's laptops are configured in such a way
 697         * the nouveau decides an entry in the VBIOS FP mode table is
 698         * valid - it's not (rh#613284)
 699         */
 700        if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
 701                if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
 702                        status = connector_status_connected;
 703                        goto out;
 704                }
 705        }
 706
 707        /* If no EDID found above, and the VBIOS indicates a hardcoded
 708         * modeline is avalilable for the panel, set it as the panel's
 709         * native mode and exit.
 710         */
 711        if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
 712            nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
 713                status = connector_status_connected;
 714                goto out;
 715        }
 716
 717        /* Still nothing, some VBIOS images have a hardcoded EDID block
 718         * stored for the panel stored in them.
 719         */
 720        if (!drm->vbios.fp_no_ddc) {
 721                struct edid *edid =
 722                        (struct edid *)nouveau_bios_embedded_edid(dev);
 723                if (edid) {
 724                        nv_connector->edid =
 725                                        kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 726                        if (nv_connector->edid)
 727                                status = connector_status_connected;
 728                }
 729        }
 730
 731out:
 732#if defined(CONFIG_ACPI_BUTTON) || \
 733        (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
 734        if (status == connector_status_connected &&
 735            !nouveau_ignorelid && !acpi_lid_open())
 736                status = connector_status_unknown;
 737#endif
 738
 739        drm_mode_connector_update_edid_property(connector, nv_connector->edid);
 740        nouveau_connector_set_encoder(connector, nv_encoder);
 741        return status;
 742}
 743
 744static void
 745nouveau_connector_force(struct drm_connector *connector)
 746{
 747        struct nouveau_drm *drm = nouveau_drm(connector->dev);
 748        struct nouveau_connector *nv_connector = nouveau_connector(connector);
 749        struct nouveau_encoder *nv_encoder;
 750        int type;
 751
 752        if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 753                if (connector->force == DRM_FORCE_ON_DIGITAL)
 754                        type = DCB_OUTPUT_TMDS;
 755                else
 756                        type = DCB_OUTPUT_ANALOG;
 757        } else
 758                type = DCB_OUTPUT_ANY;
 759
 760        nv_encoder = find_encoder(connector, type);
 761        if (!nv_encoder) {
 762                NV_ERROR(drm, "can't find encoder to force %s on!\n",
 763                         connector->name);
 764                connector->status = connector_status_disconnected;
 765                return;
 766        }
 767
 768        nouveau_connector_set_encoder(connector, nv_encoder);
 769}
 770
 771static int
 772nouveau_connector_set_property(struct drm_connector *connector,
 773                               struct drm_property *property, uint64_t value)
 774{
 775        struct nouveau_conn_atom *asyc = nouveau_conn_atom(connector->state);
 776        struct nouveau_connector *nv_connector = nouveau_connector(connector);
 777        struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 778        struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 779        int ret;
 780
 781        ret = connector->funcs->atomic_set_property(&nv_connector->base,
 782                                                    &asyc->state,
 783                                                    property, value);
 784        if (ret) {
 785                if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
 786                        return get_slave_funcs(encoder)->set_property(
 787                                encoder, connector, property, value);
 788                return ret;
 789        }
 790
 791        nv_connector->scaling_mode = asyc->scaler.mode;
 792        nv_connector->dithering_mode = asyc->dither.mode;
 793
 794        if (connector->encoder && connector->encoder->crtc) {
 795                ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
 796                                              &connector->encoder->crtc->mode,
 797                                               connector->encoder->crtc->x,
 798                                               connector->encoder->crtc->y,
 799                                               NULL);
 800                if (!ret)
 801                        return -EINVAL;
 802        }
 803
 804        return 0;
 805}
 806
 807struct moderec {
 808        int hdisplay;
 809        int vdisplay;
 810};
 811
 812static struct moderec scaler_modes[] = {
 813        { 1920, 1200 },
 814        { 1920, 1080 },
 815        { 1680, 1050 },
 816        { 1600, 1200 },
 817        { 1400, 1050 },
 818        { 1280, 1024 },
 819        { 1280, 960 },
 820        { 1152, 864 },
 821        { 1024, 768 },
 822        { 800, 600 },
 823        { 720, 400 },
 824        { 640, 480 },
 825        { 640, 400 },
 826        { 640, 350 },
 827        {}
 828};
 829
 830static int
 831nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 832{
 833        struct nouveau_connector *nv_connector = nouveau_connector(connector);
 834        struct drm_display_mode *native = nv_connector->native_mode, *m;
 835        struct drm_device *dev = connector->dev;
 836        struct moderec *mode = &scaler_modes[0];
 837        int modes = 0;
 838
 839        if (!native)
 840                return 0;
 841
 842        while (mode->hdisplay) {
 843                if (mode->hdisplay <= native->hdisplay &&
 844                    mode->vdisplay <= native->vdisplay &&
 845                    (mode->hdisplay != native->hdisplay ||
 846                     mode->vdisplay != native->vdisplay)) {
 847                        m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
 848                                         drm_mode_vrefresh(native), false,
 849                                         false, false);
 850                        if (!m)
 851                                continue;
 852
 853                        drm_mode_probed_add(connector, m);
 854                        modes++;
 855                }
 856
 857                mode++;
 858        }
 859
 860        return modes;
 861}
 862
 863static void
 864nouveau_connector_detect_depth(struct drm_connector *connector)
 865{
 866        struct nouveau_drm *drm = nouveau_drm(connector->dev);
 867        struct nouveau_connector *nv_connector = nouveau_connector(connector);
 868        struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 869        struct nvbios *bios = &drm->vbios;
 870        struct drm_display_mode *mode = nv_connector->native_mode;
 871        bool duallink;
 872
 873        /* if the edid is feeling nice enough to provide this info, use it */
 874        if (nv_connector->edid && connector->display_info.bpc)
 875                return;
 876
 877        /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
 878        if (nv_connector->type == DCB_CONNECTOR_eDP) {
 879                connector->display_info.bpc = 6;
 880                return;
 881        }
 882
 883        /* we're out of options unless we're LVDS, default to 8bpc */
 884        if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
 885                connector->display_info.bpc = 8;
 886                return;
 887        }
 888
 889        connector->display_info.bpc = 6;
 890
 891        /* LVDS: panel straps */
 892        if (bios->fp_no_ddc) {
 893                if (bios->fp.if_is_24bit)
 894                        connector->display_info.bpc = 8;
 895                return;
 896        }
 897
 898        /* LVDS: DDC panel, need to first determine the number of links to
 899         * know which if_is_24bit flag to check...
 900         */
 901        if (nv_connector->edid &&
 902            nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
 903                duallink = ((u8 *)nv_connector->edid)[121] == 2;
 904        else
 905                duallink = mode->clock >= bios->fp.duallink_transition_clk;
 906
 907        if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
 908            ( duallink && (bios->fp.strapless_is_24bit & 2)))
 909                connector->display_info.bpc = 8;
 910}
 911
 912static int
 913nouveau_connector_get_modes(struct drm_connector *connector)
 914{
 915        struct drm_device *dev = connector->dev;
 916        struct nouveau_drm *drm = nouveau_drm(dev);
 917        struct nouveau_connector *nv_connector = nouveau_connector(connector);
 918        struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 919        struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 920        int ret = 0;
 921
 922        /* destroy the native mode, the attached monitor could have changed.
 923         */
 924        if (nv_connector->native_mode) {
 925                drm_mode_destroy(dev, nv_connector->native_mode);
 926                nv_connector->native_mode = NULL;
 927        }
 928
 929        if (nv_connector->edid)
 930                ret = drm_add_edid_modes(connector, nv_connector->edid);
 931        else
 932        if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
 933            (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
 934             drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
 935                struct drm_display_mode mode;
 936
 937                nouveau_bios_fp_mode(dev, &mode);
 938                nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
 939        }
 940
 941        /* Determine display colour depth for everything except LVDS now,
 942         * DP requires this before mode_valid() is called.
 943         */
 944        if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
 945                nouveau_connector_detect_depth(connector);
 946
 947        /* Find the native mode if this is a digital panel, if we didn't
 948         * find any modes through DDC previously add the native mode to
 949         * the list of modes.
 950         */
 951        if (!nv_connector->native_mode)
 952                nv_connector->native_mode = nouveau_conn_native_mode(connector);
 953        if (ret == 0 && nv_connector->native_mode) {
 954                struct drm_display_mode *mode;
 955
 956                mode = drm_mode_duplicate(dev, nv_connector->native_mode);
 957                drm_mode_probed_add(connector, mode);
 958                ret = 1;
 959        }
 960
 961        /* Determine LVDS colour depth, must happen after determining
 962         * "native" mode as some VBIOS tables require us to use the
 963         * pixel clock as part of the lookup...
 964         */
 965        if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
 966                nouveau_connector_detect_depth(connector);
 967
 968        if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
 969                ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
 970
 971        if (nv_connector->type == DCB_CONNECTOR_LVDS ||
 972            nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
 973            nv_connector->type == DCB_CONNECTOR_eDP)
 974                ret += nouveau_connector_scaler_modes_add(connector);
 975
 976        return ret;
 977}
 978
 979static unsigned
 980get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi)
 981{
 982        struct nouveau_connector *nv_connector = nouveau_connector(connector);
 983        struct nouveau_drm *drm = nouveau_drm(connector->dev);
 984        struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
 985
 986        if (hdmi) {
 987                if (nouveau_hdmimhz > 0)
 988                        return nouveau_hdmimhz * 1000;
 989                /* Note: these limits are conservative, some Fermi's
 990                 * can do 297 MHz. Unclear how this can be determined.
 991                 */
 992                if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
 993                        return 297000;
 994                if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
 995                        return 225000;
 996        }
 997        if (dcb->location != DCB_LOC_ON_CHIP ||
 998            drm->client.device.info.chipset >= 0x46)
 999                return 165000;
1000        else if (drm->client.device.info.chipset >= 0x40)
1001                return 155000;
1002        else if (drm->client.device.info.chipset >= 0x18)
1003                return 135000;
1004        else
1005                return 112000;
1006}
1007
1008static int
1009nouveau_connector_mode_valid(struct drm_connector *connector,
1010                             struct drm_display_mode *mode)
1011{
1012        struct nouveau_connector *nv_connector = nouveau_connector(connector);
1013        struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1014        struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1015        unsigned min_clock = 25000, max_clock = min_clock;
1016        unsigned clock = mode->clock;
1017        bool hdmi;
1018
1019        switch (nv_encoder->dcb->type) {
1020        case DCB_OUTPUT_LVDS:
1021                if (nv_connector->native_mode &&
1022                    (mode->hdisplay > nv_connector->native_mode->hdisplay ||
1023                     mode->vdisplay > nv_connector->native_mode->vdisplay))
1024                        return MODE_PANEL;
1025
1026                min_clock = 0;
1027                max_clock = 400000;
1028                break;
1029        case DCB_OUTPUT_TMDS:
1030                hdmi = drm_detect_hdmi_monitor(nv_connector->edid);
1031                max_clock = get_tmds_link_bandwidth(connector, hdmi);
1032                if (!hdmi && nouveau_duallink &&
1033                    nv_encoder->dcb->duallink_possible)
1034                        max_clock *= 2;
1035                break;
1036        case DCB_OUTPUT_ANALOG:
1037                max_clock = nv_encoder->dcb->crtconf.maxfreq;
1038                if (!max_clock)
1039                        max_clock = 350000;
1040                break;
1041        case DCB_OUTPUT_TV:
1042                return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1043        case DCB_OUTPUT_DP:
1044                max_clock  = nv_encoder->dp.link_nr;
1045                max_clock *= nv_encoder->dp.link_bw;
1046                clock = clock * (connector->display_info.bpc * 3) / 10;
1047                break;
1048        default:
1049                BUG();
1050                return MODE_BAD;
1051        }
1052
1053        if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1054                clock *= 2;
1055
1056        if (clock < min_clock)
1057                return MODE_CLOCK_LOW;
1058
1059        if (clock > max_clock)
1060                return MODE_CLOCK_HIGH;
1061
1062        return MODE_OK;
1063}
1064
1065static struct drm_encoder *
1066nouveau_connector_best_encoder(struct drm_connector *connector)
1067{
1068        struct nouveau_connector *nv_connector = nouveau_connector(connector);
1069
1070        if (nv_connector->detected_encoder)
1071                return to_drm_encoder(nv_connector->detected_encoder);
1072
1073        return NULL;
1074}
1075
1076static const struct drm_connector_helper_funcs
1077nouveau_connector_helper_funcs = {
1078        .get_modes = nouveau_connector_get_modes,
1079        .mode_valid = nouveau_connector_mode_valid,
1080        .best_encoder = nouveau_connector_best_encoder,
1081};
1082
1083static const struct drm_connector_funcs
1084nouveau_connector_funcs = {
1085        .dpms = drm_helper_connector_dpms,
1086        .reset = nouveau_conn_reset,
1087        .detect = nouveau_connector_detect,
1088        .force = nouveau_connector_force,
1089        .fill_modes = drm_helper_probe_single_connector_modes,
1090        .set_property = nouveau_connector_set_property,
1091        .destroy = nouveau_connector_destroy,
1092        .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1093        .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1094        .atomic_set_property = nouveau_conn_atomic_set_property,
1095        .atomic_get_property = nouveau_conn_atomic_get_property,
1096};
1097
1098static const struct drm_connector_funcs
1099nouveau_connector_funcs_lvds = {
1100        .dpms = drm_helper_connector_dpms,
1101        .reset = nouveau_conn_reset,
1102        .detect = nouveau_connector_detect_lvds,
1103        .force = nouveau_connector_force,
1104        .fill_modes = drm_helper_probe_single_connector_modes,
1105        .set_property = nouveau_connector_set_property,
1106        .destroy = nouveau_connector_destroy,
1107        .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1108        .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1109        .atomic_set_property = nouveau_conn_atomic_set_property,
1110        .atomic_get_property = nouveau_conn_atomic_get_property,
1111};
1112
1113static int
1114nouveau_connector_hotplug(struct nvif_notify *notify)
1115{
1116        struct nouveau_connector *nv_connector =
1117                container_of(notify, typeof(*nv_connector), hpd);
1118        struct drm_connector *connector = &nv_connector->base;
1119        struct nouveau_drm *drm = nouveau_drm(connector->dev);
1120        const struct nvif_notify_conn_rep_v0 *rep = notify->data;
1121        const char *name = connector->name;
1122        struct nouveau_encoder *nv_encoder;
1123
1124        if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1125                NV_DEBUG(drm, "service %s\n", name);
1126                if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP)))
1127                        nv50_mstm_service(nv_encoder->dp.mstm);
1128        } else {
1129                bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1130
1131                NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
1132                if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) {
1133                        if (!plugged)
1134                                nv50_mstm_remove(nv_encoder->dp.mstm);
1135                }
1136
1137                drm_helper_hpd_irq_event(connector->dev);
1138        }
1139
1140        return NVIF_NOTIFY_KEEP;
1141}
1142
1143static ssize_t
1144nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1145{
1146        struct nouveau_connector *nv_connector =
1147                container_of(obj, typeof(*nv_connector), aux);
1148        struct nouveau_encoder *nv_encoder;
1149        struct nvkm_i2c_aux *aux;
1150        u8 size = msg->size;
1151        int ret;
1152
1153        nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1154        if (!nv_encoder || !(aux = nv_encoder->aux))
1155                return -ENODEV;
1156        if (WARN_ON(msg->size > 16))
1157                return -E2BIG;
1158
1159        ret = nvkm_i2c_aux_acquire(aux);
1160        if (ret)
1161                return ret;
1162
1163        ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1164                                msg->buffer, &size);
1165        nvkm_i2c_aux_release(aux);
1166        if (ret >= 0) {
1167                msg->reply = ret;
1168                return size;
1169        }
1170
1171        return ret;
1172}
1173
1174static int
1175drm_conntype_from_dcb(enum dcb_connector_type dcb)
1176{
1177        switch (dcb) {
1178        case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
1179        case DCB_CONNECTOR_TV_0     :
1180        case DCB_CONNECTOR_TV_1     :
1181        case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
1182        case DCB_CONNECTOR_DMS59_0  :
1183        case DCB_CONNECTOR_DMS59_1  :
1184        case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
1185        case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
1186        case DCB_CONNECTOR_LVDS     :
1187        case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1188        case DCB_CONNECTOR_DMS59_DP0:
1189        case DCB_CONNECTOR_DMS59_DP1:
1190        case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
1191        case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
1192        case DCB_CONNECTOR_HDMI_0   :
1193        case DCB_CONNECTOR_HDMI_1   :
1194        case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1195        case DCB_CONNECTOR_WFD      : return DRM_MODE_CONNECTOR_VIRTUAL;
1196        default:
1197                break;
1198        }
1199
1200        return DRM_MODE_CONNECTOR_Unknown;
1201}
1202
1203struct drm_connector *
1204nouveau_connector_create(struct drm_device *dev, int index)
1205{
1206        const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1207        struct nouveau_drm *drm = nouveau_drm(dev);
1208        struct nouveau_display *disp = nouveau_display(dev);
1209        struct nouveau_connector *nv_connector = NULL;
1210        struct drm_connector *connector;
1211        int type, ret = 0;
1212        bool dummy;
1213
1214        list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1215                nv_connector = nouveau_connector(connector);
1216                if (nv_connector->index == index)
1217                        return connector;
1218        }
1219
1220        nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1221        if (!nv_connector)
1222                return ERR_PTR(-ENOMEM);
1223
1224        connector = &nv_connector->base;
1225        nv_connector->index = index;
1226
1227        /* attempt to parse vbios connector type and hotplug gpio */
1228        nv_connector->dcb = olddcb_conn(dev, index);
1229        if (nv_connector->dcb) {
1230                u32 entry = ROM16(nv_connector->dcb[0]);
1231                if (olddcb_conntab(dev)[3] >= 4)
1232                        entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1233
1234                nv_connector->type = nv_connector->dcb[0];
1235                if (drm_conntype_from_dcb(nv_connector->type) ==
1236                                          DRM_MODE_CONNECTOR_Unknown) {
1237                        NV_WARN(drm, "unknown connector type %02x\n",
1238                                nv_connector->type);
1239                        nv_connector->type = DCB_CONNECTOR_NONE;
1240                }
1241
1242                /* Gigabyte NX85T */
1243                if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1244                        if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1245                                nv_connector->type = DCB_CONNECTOR_DVI_I;
1246                }
1247
1248                /* Gigabyte GV-NX86T512H */
1249                if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1250                        if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1251                                nv_connector->type = DCB_CONNECTOR_DVI_I;
1252                }
1253        } else {
1254                nv_connector->type = DCB_CONNECTOR_NONE;
1255        }
1256
1257        /* no vbios data, or an unknown dcb connector type - attempt to
1258         * figure out something suitable ourselves
1259         */
1260        if (nv_connector->type == DCB_CONNECTOR_NONE) {
1261                struct nouveau_drm *drm = nouveau_drm(dev);
1262                struct dcb_table *dcbt = &drm->vbios.dcb;
1263                u32 encoders = 0;
1264                int i;
1265
1266                for (i = 0; i < dcbt->entries; i++) {
1267                        if (dcbt->entry[i].connector == nv_connector->index)
1268                                encoders |= (1 << dcbt->entry[i].type);
1269                }
1270
1271                if (encoders & (1 << DCB_OUTPUT_DP)) {
1272                        if (encoders & (1 << DCB_OUTPUT_TMDS))
1273                                nv_connector->type = DCB_CONNECTOR_DP;
1274                        else
1275                                nv_connector->type = DCB_CONNECTOR_eDP;
1276                } else
1277                if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1278                        if (encoders & (1 << DCB_OUTPUT_ANALOG))
1279                                nv_connector->type = DCB_CONNECTOR_DVI_I;
1280                        else
1281                                nv_connector->type = DCB_CONNECTOR_DVI_D;
1282                } else
1283                if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1284                        nv_connector->type = DCB_CONNECTOR_VGA;
1285                } else
1286                if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1287                        nv_connector->type = DCB_CONNECTOR_LVDS;
1288                } else
1289                if (encoders & (1 << DCB_OUTPUT_TV)) {
1290                        nv_connector->type = DCB_CONNECTOR_TV_0;
1291                }
1292        }
1293
1294        switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1295        case DRM_MODE_CONNECTOR_LVDS:
1296                ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1297                if (ret) {
1298                        NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1299                        kfree(nv_connector);
1300                        return ERR_PTR(ret);
1301                }
1302
1303                funcs = &nouveau_connector_funcs_lvds;
1304                break;
1305        case DRM_MODE_CONNECTOR_DisplayPort:
1306        case DRM_MODE_CONNECTOR_eDP:
1307                nv_connector->aux.dev = dev->dev;
1308                nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1309                ret = drm_dp_aux_register(&nv_connector->aux);
1310                if (ret) {
1311                        NV_ERROR(drm, "failed to register aux channel\n");
1312                        kfree(nv_connector);
1313                        return ERR_PTR(ret);
1314                }
1315
1316                funcs = &nouveau_connector_funcs;
1317                break;
1318        default:
1319                funcs = &nouveau_connector_funcs;
1320                break;
1321        }
1322
1323        /* HDMI 3D support */
1324        if ((disp->disp.oclass >= G82_DISP)
1325            && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1326                || (type == DRM_MODE_CONNECTOR_eDP)
1327                || (type == DRM_MODE_CONNECTOR_HDMIA)))
1328                connector->stereo_allowed = true;
1329
1330        /* defaults, will get overridden in detect() */
1331        connector->interlace_allowed = false;
1332        connector->doublescan_allowed = false;
1333
1334        drm_connector_init(dev, connector, funcs, type);
1335        drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1336
1337        connector->funcs->reset(connector);
1338        nouveau_conn_attach_properties(connector);
1339
1340        /* Default scaling mode */
1341        switch (nv_connector->type) {
1342        case DCB_CONNECTOR_LVDS:
1343        case DCB_CONNECTOR_LVDS_SPWG:
1344        case DCB_CONNECTOR_eDP:
1345                /* see note in nouveau_connector_set_property() */
1346                if (disp->disp.oclass < NV50_DISP) {
1347                        nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1348                        break;
1349                }
1350                nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1351                break;
1352        default:
1353                nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1354                break;
1355        }
1356
1357        /* dithering properties */
1358        switch (nv_connector->type) {
1359        case DCB_CONNECTOR_TV_0:
1360        case DCB_CONNECTOR_TV_1:
1361        case DCB_CONNECTOR_TV_3:
1362        case DCB_CONNECTOR_VGA:
1363                break;
1364        default:
1365                nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1366                break;
1367        }
1368
1369        ret = nvif_notify_init(&disp->disp, nouveau_connector_hotplug, true,
1370                               NV04_DISP_NTFY_CONN,
1371                               &(struct nvif_notify_conn_req_v0) {
1372                                .mask = NVIF_NOTIFY_CONN_V0_ANY,
1373                                .conn = index,
1374                               },
1375                               sizeof(struct nvif_notify_conn_req_v0),
1376                               sizeof(struct nvif_notify_conn_rep_v0),
1377                               &nv_connector->hpd);
1378        if (ret)
1379                connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1380        else
1381                connector->polled = DRM_CONNECTOR_POLL_HPD;
1382
1383        drm_connector_register(connector);
1384        return connector;
1385}
1386