linux-core/nv50_kms_wrapper.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 "nv50_kms_wrapper.h"
  28 #include "drm_crtc_helper.h" /* be careful what you use from this */
  29
  30 /* This file serves as the interface between the common kernel modesetting code and the device dependent implementation. */
  31
  32 /*
  33  * Get private functions.
  34  */
  35
  36 struct nv50_kms_priv *nv50_get_kms_priv(struct drm_device *dev)
  37 {
  38         struct drm_nouveau_private *dev_priv = dev->dev_private;
  39         return dev_priv->kms_priv;
  40 }
  41
  42 /*
  43  * Allocation functions.
  44  */
  45
  46 static void *nv50_kms_alloc_crtc(struct drm_device *dev)
  47 {
  48         struct nv50_kms_priv *kms_priv = nv50_get_kms_priv(dev);
  49         struct nv50_kms_crtc *crtc = kzalloc(sizeof(struct nv50_kms_crtc), GFP_KERNEL);
  50
  51         if (!crtc)
  52                 return NULL;
  53
  54         list_add_tail(&crtc->item, &kms_priv->crtcs);
  55
  56         return &(crtc->priv);
  57 }
  58
  59 static void *nv50_kms_alloc_output(struct drm_device *dev)
  60 {
  61         struct nv50_kms_priv *kms_priv = nv50_get_kms_priv(dev);
  62         struct nv50_kms_encoder *encoder = kzalloc(sizeof(struct nv50_kms_encoder), GFP_KERNEL);
  63
  64         if (!encoder)
  65                 return NULL;
  66
  67         list_add_tail(&encoder->item, &kms_priv->encoders);
  68
  69         return &(encoder->priv);
  70 }
  71
  72 static void *nv50_kms_alloc_connector(struct drm_device *dev)
  73 {
  74         struct nv50_kms_priv *kms_priv = nv50_get_kms_priv(dev);
  75         struct nv50_kms_connector *connector = kzalloc(sizeof(struct nv50_kms_connector), GFP_KERNEL);
  76
  77         if (!connector)
  78                 return NULL;
  79
  80         list_add_tail(&connector->item, &kms_priv->connectors);
  81
  82         return &(connector->priv);
  83 }
  84
  85 static void nv50_kms_free_crtc(void *crtc)
  86 {
  87         struct nv50_kms_crtc *kms_crtc = from_nv50_crtc(crtc);
  88
  89         list_del(&kms_crtc->item);
  90
  91         kfree(kms_crtc);
  92 }
  93
  94 static void nv50_kms_free_output(void *output)
  95 {
  96         struct nv50_kms_encoder *kms_encoder = from_nv50_output(output);
  97
  98         list_del(&kms_encoder->item);
  99
 100         kfree(kms_encoder);
 101 }
 102
 103 static void nv50_kms_free_connector(void *connector)
 104 {
 105         struct nv50_kms_connector *kms_connector = from_nv50_connector(connector);
 106
 107         list_del(&kms_connector->item);
 108
 109         kfree(kms_connector);
 110 }
 111
 112 /*
 113  * Mode conversion functions.
 114  */
 115
 116 static struct nouveau_hw_mode *nv50_kms_to_hw_mode(struct drm_display_mode *mode)
 117 {
 118         struct nouveau_hw_mode *hw_mode = kzalloc(sizeof(struct nouveau_hw_mode), GFP_KERNEL);
 119         if (!hw_mode)
 120                 return NULL;
 121
 122         /* create hw values. */
 123         hw_mode->clock = mode->clock;
 124         hw_mode->flags = hw_mode->flags;
 125
 126         hw_mode->hdisplay = mode->hdisplay;
 127         hw_mode->hsync_start = mode->hsync_start;
 128         hw_mode->hsync_end = mode->hsync_end;
 129         hw_mode->htotal = mode->htotal;
 130
 131         hw_mode->hblank_start = mode->hdisplay + 1;
 132         hw_mode->hblank_end = mode->htotal;
 133
 134         hw_mode->vdisplay = mode->vdisplay;
 135         hw_mode->vsync_start = mode->vsync_start;
 136         hw_mode->vsync_end = mode->vsync_end;
 137         hw_mode->vtotal = mode->vtotal;
 138
 139         hw_mode->vblank_start = mode->vdisplay + 1;
 140         hw_mode->vblank_end = mode->vtotal;
 141
 142         return hw_mode;
 143 }
 144
 145 /*
 146  * State mirroring functions.
 147  */
 148
 149 static void nv50_kms_mirror_routing(struct drm_device *dev)
 150 {
 151         struct nv50_display *display = nv50_get_display(dev);
 152         struct nv50_crtc *crtc = NULL;
 153         struct nv50_output *output = NULL;
 154         struct nv50_connector *connector = NULL;
 155         struct drm_connector *drm_connector = NULL;
 156
 157         /* Wipe all previous connections. */
 158         list_for_each_entry(connector, &display->connectors, head) {
 159                 connector->output = NULL;
 160         }
 161
 162         list_for_each_entry(output, &display->outputs, head) {
 163                 output->crtc = NULL;
 164         }
 165
 166         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 167                 if (drm_connector->encoder) {
 168                         output = to_nv50_output(drm_connector->encoder);
 169                         connector = to_nv50_connector(drm_connector);
 170
 171                         /* hook up output to connector. */
 172                         connector->output = output;
 173
 174                         if (drm_connector->encoder->crtc) {
 175                                 crtc = to_nv50_crtc(drm_connector->encoder->crtc);
 176
 177                                 /* hook up output to crtc. */
 178                                 output->crtc = crtc;
 179                         }
 180                 }
 181         }
 182 }
 183
 184 /*
 185  * FB functions.
 186  */
 187
 188 static void nv50_kms_framebuffer_destroy(struct drm_framebuffer *drm_framebuffer)
 189 {
 190         drm_framebuffer_cleanup(drm_framebuffer);
 191
 192         kfree(drm_framebuffer);
 193 }
 194
 195 static const struct drm_framebuffer_funcs nv50_kms_fb_funcs = {
 196         .destroy = nv50_kms_framebuffer_destroy,
 197 };
 198
 199 /*
 200  * Mode config functions.
 201  */
 202
 203 static struct drm_framebuffer *nv50_kms_framebuffer_create(struct drm_device *dev,
 204                                                 struct drm_file *file_priv, struct drm_mode_fb_cmd *mode_cmd)
 205 {
 206         struct drm_framebuffer *drm_framebuffer = kzalloc(sizeof(struct drm_framebuffer), GFP_KERNEL);
 207         if (!drm_framebuffer)
 208                 return NULL;
 209
 210         drm_framebuffer_init(dev, drm_framebuffer, &nv50_kms_fb_funcs);
 211         drm_helper_mode_fill_fb_struct(drm_framebuffer, mode_cmd);
 212
 213         return drm_framebuffer;
 214 }
 215
 216 static int nv50_kms_fb_changed(struct drm_device *dev)
 217 {
 218         return 0; /* not needed until nouveaufb? */
 219 }
 220
 221 static const struct drm_mode_config_funcs nv50_kms_mode_funcs = {
 222         .resize_fb = NULL,
 223         .fb_create = nv50_kms_framebuffer_create,
 224         .fb_changed = nv50_kms_fb_changed,
 225 };
 226
 227 /*
 228  * CRTC functions.
 229  */
 230
 231 static int nv50_kms_crtc_cursor_set(struct drm_crtc *drm_crtc, uint32_t buffer_handle,
 232                           uint32_t width, uint32_t height)
 233 {
 234         struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
 235         struct nv50_display *display = nv50_get_display(crtc->dev);
 236         int rval;
 237
 238         if (width != 64 || height != 64)
 239                 return -EINVAL;
 240
 241         rval = crtc->cursor->set_bo(crtc, (drm_handle_t) buffer_handle);
 242
 243         if (rval != 0)
 244                 return rval;
 245
 246         /* in case this triggers any other cursor changes */
 247         display->update(display);
 248
 249         return 0;
 250 }
 251
 252 static int nv50_kms_crtc_cursor_move(struct drm_crtc *drm_crtc, int x, int y)
 253 {
 254         struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
 255
 256         return crtc->cursor->set_pos(crtc, x, y);
 257 }
 258
 259 void nv50_kms_crtc_gamma_set(struct drm_crtc *drm_crtc, u16 *r, u16 *g, u16 *b,
 260                 uint32_t size)
 261 {
 262         struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
 263
 264         if (size != 256)
 265                 return;
 266
 267         crtc->lut->set(crtc, (uint16_t *)r, (uint16_t *)g, (uint16_t *)b);
 268 }
 269
 270 int nv50_kms_crtc_set_config(struct drm_mode_set *set)
 271 {
 272         int rval = 0, i;
 273         uint32_t crtc_mask = 0;
 274         struct drm_device *dev = NULL;
 275         struct drm_nouveau_private *dev_priv = NULL;
 276         struct nv50_display *display = NULL;
 277         struct drm_connector *drm_connector = NULL;
 278         struct drm_encoder *drm_encoder = NULL;
 279         struct drm_crtc *drm_crtc = NULL;
 280
 281         struct nv50_crtc *crtc = NULL;
 282         struct nv50_output *output = NULL;
 283         struct nv50_connector *connector = NULL;
 284         struct nouveau_hw_mode *hw_mode = NULL;
 285         struct nv50_fb_info fb_info;
 286
 287         bool blank = false;
 288         bool switch_fb = false;
 289         bool modeset = false;
 290
 291         NV50_DEBUG("\n");
 292
 293         /*
 294          * Supported operations:
 295          * - Switch mode.
 296          * - Switch framebuffer.
 297          * - Blank screen.
 298          */
 299
 300         /* Sanity checking */
 301         if (!set) {
 302                 DRM_ERROR("Sanity check failed\n");
 303                 goto out;
 304         }
 305
 306         if (!set->crtc) {
 307                 DRM_ERROR("Sanity check failed\n");
 308                 goto out;
 309         }
 310
 311         if (set->mode) {
 312                 if (set->fb) {
 313                         if (!drm_mode_equal(set->mode, &set->crtc->mode))
 314                                 modeset = true;
 315
 316                         if (set->fb != set->crtc->fb)
 317                                 switch_fb = true;
 318
 319                         if (set->x != set->crtc->x || set->y != set->crtc->y)
 320                                 switch_fb = true;
 321                 }
 322         } else {
 323                 blank = true;
 324         }
 325
 326         if (!set->connectors && modeset) {
 327                 DRM_ERROR("Sanity check failed\n");
 328                 goto out;
 329         }
 330
 331         if (!modeset && !switch_fb && !blank) {
 332                 DRM_ERROR("There is nothing to do, bad input.\n");
 333                 goto out;
 334         }
 335
 336         /* Basic variable setting */
 337         dev = set->crtc->dev;
 338         dev_priv = dev->dev_private;
 339         display = nv50_get_display(dev);
 340         crtc = to_nv50_crtc(set->crtc);
 341
 342         /**
 343          * Wiring up the encoders and connectors.
 344          */
 345
 346         if (modeset) {
 347                 /* Mode validation */
 348                 hw_mode = nv50_kms_to_hw_mode(set->mode);
 349
 350                 rval = crtc->validate_mode(crtc, hw_mode);
 351
 352                 if (rval != MODE_OK) {
 353                         DRM_ERROR("Mode not ok\n");
 354                         goto out;
 355                 }
 356
 357                 for (i = 0; i < set->num_connectors; i++) {
 358                         drm_connector = set->connectors[i];
 359                         if (!drm_connector) {
 360                                 DRM_ERROR("No connector\n");
 361                                 goto out;
 362                         }
 363                         connector = to_nv50_connector(drm_connector);
 364
 365                         output = connector->to_output(connector, connector->digital);
 366                         if (!output) {
 367                                 DRM_ERROR("No output\n");
 368                                 goto out;
 369                         }
 370
 371                         rval = output->validate_mode(output, hw_mode);
 372                         if (rval != MODE_OK) {
 373                                 DRM_ERROR("Mode not ok\n");
 374                                 goto out;
 375                         }
 376                 }
 377
 378                 /* Validation done, move on to cleaning of existing structures. */
 379
 380                 /* find encoders that use this crtc. */
 381                 list_for_each_entry(drm_encoder, &dev->mode_config.encoder_list, head) {
 382                         if (drm_encoder->crtc == set->crtc) {
 383                                 /* find the connector that goes with it */
 384                                 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 385                                         if (drm_connector->encoder == drm_encoder) {
 386                                                 drm_connector->encoder =  NULL;
 387                                                 break;
 388                                         }
 389                                 }
 390                                 drm_encoder->crtc = NULL;
 391                         }
 392                 }
 393
 394                 /* now find if our desired encoders or connectors are in use already. */
 395                 for (i = 0; i < set->num_connectors; i++) {
 396                         drm_connector = set->connectors[i];
 397                         if (!drm_connector) {
 398                                 DRM_ERROR("No connector\n");
 399                                 goto out;
 400                         }
 401
 402                         if (!drm_connector->encoder)
 403                                 continue;
 404
 405                         drm_encoder = drm_connector->encoder;
 406                         drm_connector->encoder = NULL;
 407
 408                         if (!drm_encoder->crtc)
 409                                 continue;
 410
 411                         drm_crtc = drm_encoder->crtc;
 412                         drm_encoder->crtc = NULL;
 413
 414                         crtc = to_nv50_crtc(drm_crtc);
 415                         crtc->active = false;
 416                         drm_crtc->enabled = false;
 417                 }
 418
 419                 /* Time to wire up the public encoder, the private one will be handled later. */
 420                 for (i = 0; i < set->num_connectors; i++) {
 421                         drm_connector = set->connectors[i];
 422                         if (!drm_connector) {
 423                                 DRM_ERROR("No connector\n");
 424                                 goto out;
 425                         }
 426
 427                         output = connector->to_output(connector, connector->digital);
 428                         if (!output) {
 429                                 DRM_ERROR("No output\n");
 430                                 goto out;
 431                         }
 432
 433                         /* find the encoder public structure that matches out output structure. */
 434                         drm_encoder = to_nv50_kms_encoder(output);
 435
 436                         if (!drm_encoder) {
 437                                 DRM_ERROR("No encoder\n");
 438                                 goto out;
 439                         }
 440
 441                         drm_encoder->crtc = set->crtc;
 442                         drm_connector->encoder = drm_encoder;
 443                 }
 444         }
 445
 446         /**
 447          * Disable crtc.
 448          */
 449
 450         if (blank) {
 451                 crtc = to_nv50_crtc(set->crtc);
 452
 453                 /* keeping the encoders and connectors attached, so they can be tracked */
 454                 crtc->active = false;
 455                 set->crtc->enabled = false;
 456         }
 457
 458         /**
 459          * All state should now be updated, now onto the real work.
 460          */
 461
 462         /* mirror everything to the private structs */
 463         nv50_kms_mirror_routing(dev);
 464
 465         /**
 466          * Bind framebuffer.
 467          */
 468
 469         if (switch_fb) {
 470                 /* set framebuffer */
 471                 set->crtc->fb = set->fb;
 472
 473                 /* set private framebuffer */
 474                 crtc = to_nv50_crtc(set->crtc);
 475                 fb_info.block = find_block_by_handle(dev_priv->fb_heap, set->fb->mm_handle);
 476                 fb_info.width = set->fb->width;
 477                 fb_info.height = set->fb->height;
 478                 fb_info.depth = set->fb->depth;
 479                 fb_info.bpp = set->fb->bits_per_pixel;
 480                 fb_info.pitch = set->fb->pitch;
 481                 fb_info.x = set->x;
 482                 fb_info.y = set->y;
 483
 484                 rval = crtc->fb->bind(crtc, &fb_info);
 485                 if (rval != 0) {
 486                         DRM_ERROR("fb_bind failed\n");
 487                         goto out;
 488                 }
 489         }
 490
 491         /* this is !cursor_show */
 492         if (!crtc->cursor->enabled) {
 493                 rval = crtc->cursor->enable(crtc);
 494                 if (rval != 0) {
 495                         DRM_ERROR("cursor_enable failed\n");
 496                         goto out;
 497                 }
 498         }
 499
 500         /**
 501          * Blanking.
 502          */
 503
 504         if (blank) {
 505                 crtc = to_nv50_crtc(set->crtc);
 506
 507                 rval = crtc->blank(crtc, TRUE);
 508                 if (rval != 0) {
 509                         DRM_ERROR("blanking failed\n");
 510                         goto out;
 511                 }
 512
 513                 /* detach any outputs that are currently running on this crtc */
 514                 list_for_each_entry(drm_encoder, &dev->mode_config.encoder_list, head) {
 515                         if (drm_encoder->crtc == set->crtc) {
 516                                 output = to_nv50_output(drm_encoder);
 517
 518                                 rval = output->execute_mode(output, TRUE);
 519                                 if (rval != 0) {
 520                                         DRM_ERROR("detaching output failed\n");
 521                                         goto out;
 522                                 }
 523                         }
 524                 }
 525         }
 526
 527         /**
 528          * Change framebuffer, without changing mode.
 529          */
 530
 531         if (switch_fb && !modeset && !blank) {
 532                 crtc = to_nv50_crtc(set->crtc);
 533
 534                 rval = crtc->blank(crtc, TRUE);
 535                 if (rval != 0) {
 536                         DRM_ERROR("blanking failed\n");
 537                         goto out;
 538                 }
 539
 540                 rval = crtc->set_fb(crtc);
 541                 if (rval != 0) {
 542                         DRM_ERROR("set_fb failed\n");
 543                         goto out;
 544                 }
 545
 546                 /* this also sets the fb offset */
 547                 rval = crtc->blank(crtc, FALSE);
 548                 if (rval != 0) {
 549                         DRM_ERROR("unblanking failed\n");
 550                         goto out;
 551                 }
 552         }
 553
 554         /**
 555          * Normal modesetting.
 556          */
 557
 558         if (modeset) {
 559                 /* disconnect unused outputs */
 560                 list_for_each_entry(output, &display->outputs, head) {
 561                         if (output->crtc) {
 562                                 crtc_mask |= 1 << output->crtc->index;
 563                         } else {
 564                                 rval = output->execute_mode(output, TRUE);
 565                                 if (rval != 0) {
 566                                         DRM_ERROR("detaching output failed\n");
 567                                         goto out;
 568                                 }
 569                         }
 570                 }
 571
 572                 rval = crtc->set_mode(crtc, hw_mode);
 573                 if (rval != 0) {
 574                         DRM_ERROR("crtc mode set failed\n");
 575                         goto out;
 576                 }
 577
 578                 /* find native mode. */
 579                 list_for_each_entry(output, &display->outputs, head) {
 580                         if (output->crtc != crtc)
 581                                 continue;
 582
 583                         *crtc->native_mode = *output->native_mode;
 584                         list_for_each_entry(connector, &display->connectors, head) {
 585                                 if (connector->output != output)
 586                                         continue;
 587
 588                                 crtc->scaling_mode = connector->scaling_mode;
 589                                 break;
 590                         }
 591
 592                         if (crtc->scaling_mode == SCALE_PANEL)
 593                                 crtc->use_native_mode = false;
 594                         else
 595                                 crtc->use_native_mode = true;
 596
 597                         break; /* no use in finding more than one mode */
 598                 }
 599
 600                 rval = crtc->execute_mode(crtc);
 601                 if (rval != 0) {
 602                         DRM_ERROR("crtc execute mode failed\n");
 603                         goto out;
 604                 }
 605
 606                 list_for_each_entry(output, &display->outputs, head) {
 607                         if (output->crtc != crtc)
 608                                 continue;
 609
 610                         rval = output->execute_mode(output, FALSE);
 611                         if (rval != 0) {
 612                                 DRM_ERROR("output execute mode failed\n");
 613                                 goto out;
 614                         }
 615                 }
 616
 617                 rval = crtc->set_scale(crtc);
 618                 if (rval != 0) {
 619                         DRM_ERROR("crtc set scale failed\n");
 620                         goto out;
 621                 }
 622
 623                 /* next line changes crtc, so putting it here is important */
 624                 display->last_crtc = crtc->index;
 625
 626                 /* blank any unused crtcs */
 627                 list_for_each_entry(crtc, &display->crtcs, head) {
 628                         if (!(crtc_mask & (1 << crtc->index)))
 629                                 crtc->blank(crtc, TRUE);
 630                 }
 631         }
 632
 633         display->update(display);
 634
 635         kfree(hw_mode);
 636
 637         return 0;
 638
 639 out:
 640         if (display)
 641                 display->update(display);
 642
 643         kfree(hw_mode);
 644
 645         if (rval != 0)
 646                 return rval;
 647         else
 648                 return -EINVAL;
 649 }
 650
 651 static void nv50_kms_crtc_destroy(struct drm_crtc *drm_crtc)
 652 {
 653         struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
 654
 655         drm_crtc_cleanup(drm_crtc);
 656
 657         /* this will even destroy the public structure. */
 658         crtc->destroy(crtc);
 659 }
 660
 661 static const struct drm_crtc_funcs nv50_kms_crtc_funcs = {
 662         .save = NULL,
 663         .restore = NULL,
 664         .cursor_set = nv50_kms_crtc_cursor_set,
 665         .cursor_move = nv50_kms_crtc_cursor_move,
 666         .gamma_set = nv50_kms_crtc_gamma_set,
 667         .set_config = nv50_kms_crtc_set_config,
 668         .destroy = nv50_kms_crtc_destroy,
 669 };
 670
 671 static int nv50_kms_crtcs_init(struct drm_device *dev)
 672 {
 673         struct nv50_display *display = nv50_get_display(dev);
 674         struct nv50_crtc *crtc = NULL;
 675
 676         /*
 677          * This may look a bit confusing, but:
 678          * The internal structure is already allocated and so is the public one.
 679          * Just a matter of getting to the memory and register it.
 680          */
 681         list_for_each_entry(crtc, &display->crtcs, head) {
 682                 struct drm_crtc *drm_crtc = to_nv50_kms_crtc(crtc);
 683
 684                 drm_crtc_init(dev, drm_crtc, &nv50_kms_crtc_funcs);
 685         }
 686
 687         return 0;
 688 }
 689
 690 /*
 691  * Encoder functions
 692  */
 693
 694 static void nv50_kms_encoder_destroy(struct drm_encoder *drm_encoder)
 695 {
 696         struct nv50_output *output = to_nv50_output(drm_encoder);
 697
 698         drm_encoder_cleanup(drm_encoder);
 699
 700         /* this will even destroy the public structure. */
 701         output->destroy(output);
 702 }
 703
 704 static const struct drm_encoder_funcs nv50_kms_encoder_funcs = {
 705         .destroy = nv50_kms_encoder_destroy,
 706 };
 707
 708 static int nv50_kms_encoders_init(struct drm_device *dev)
 709 {
 710         struct nv50_display *display = nv50_get_display(dev);
 711         struct nv50_output *output = NULL;
 712
 713         list_for_each_entry(output, &display->outputs, head) {
 714                 struct drm_encoder *drm_encoder = to_nv50_kms_encoder(output);
 715                 uint32_t type = DRM_MODE_ENCODER_NONE;
 716
 717                 switch (output->type) {
 718                         case OUTPUT_DAC:
 719                                 type = DRM_MODE_ENCODER_DAC;
 720                                 break;
 721                         case OUTPUT_TMDS:
 722                                 type = DRM_MODE_ENCODER_TMDS;
 723                                 break;
 724                         case OUTPUT_LVDS:
 725                                 type = DRM_MODE_ENCODER_LVDS;
 726                                 break;
 727                         case OUTPUT_TV:
 728                                 type = DRM_MODE_ENCODER_TVDAC;
 729                                 break;
 730                         default:
 731                                 type = DRM_MODE_ENCODER_NONE;
 732                                 break;
 733                 }
 734
 735                 if (type == DRM_MODE_ENCODER_NONE) {
 736                         DRM_ERROR("DRM_MODE_ENCODER_NONE encountered\n");
 737                         continue;
 738                 }
 739
 740                 drm_encoder_init(dev, drm_encoder, &nv50_kms_encoder_funcs, type);
 741
 742                 /* I've never seen possible crtc's restricted. */
 743                 drm_encoder->possible_crtcs = 3;
 744                 drm_encoder->possible_clones = 0;
 745         }
 746
 747         return 0;
 748 }
 749
 750 /*
 751  * Connector functions
 752  */
 753
 754 void nv50_kms_connector_detect_all(struct drm_device *dev)
 755 {
 756         struct drm_connector *drm_connector = NULL;
 757
 758         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 759                 drm_connector->funcs->detect(drm_connector);
 760         }
 761 }
 762
 763 static enum drm_connector_status nv50_kms_connector_detect(struct drm_connector *drm_connector)
 764 {
 765         struct nv50_connector *connector = to_nv50_connector(drm_connector);
 766         struct drm_device *dev = drm_connector->dev;
 767         bool connected;
 768         int old_status;
 769
 770         connected = connector->detect(connector);
 771
 772         old_status = drm_connector->status;
 773
 774         if (connected)
 775                 drm_connector->status = connector_status_connected;
 776         else
 777                 drm_connector->status = connector_status_disconnected;
 778
 779         /* update our modes whenever there is reason to */
 780         if (old_status != drm_connector->status) {
 781                 drm_connector->funcs->fill_modes(drm_connector, 0, 0);
 782                 /* notify fb of changes */
 783                 dev->mode_config.funcs->fb_changed(dev);
 784         }
 785
 786         return drm_connector->status;
 787 }
 788
 789 static void nv50_kms_connector_destroy(struct drm_connector *drm_connector)
 790 {
 791         struct nv50_connector *connector = to_nv50_connector(drm_connector);
 792
 793         drm_sysfs_connector_remove(drm_connector);
 794         drm_connector_cleanup(drm_connector);
 795
 796         /* this will even destroy the public structure. */
 797         connector->destroy(connector);
 798 }
 799
 800 /*
 801  * Detailed mode info for a standard 640x480@60Hz monitor
 802  */
 803 static struct drm_display_mode std_mode[] = {
 804         /*{ DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 25200, 640, 656,
 805                  752, 800, 0, 480, 490, 492, 525, 0,
 806                  V_NHSYNC | V_NVSYNC) },*/ /* 640x480@60Hz */
 807         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DEFAULT, 135000, 1280, 1296,
 808                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
 809                    V_PHSYNC | V_PVSYNC) }, /* 1280x1024@75Hz */
 810 };
 811
 812 static void nv50_kms_connector_fill_modes(struct drm_connector *drm_connector, uint32_t maxX, uint32_t maxY)
 813 {
 814         struct nv50_connector *connector = to_nv50_connector(drm_connector);
 815         int ret = 0;
 816         bool connected;
 817         struct drm_display_mode *mode, *t;
 818         struct edid *edid = NULL;
 819
 820         NV50_DEBUG("%s\n", drm_get_connector_name(drm_connector));
 821         /* set all modes to the unverified state */
 822         list_for_each_entry_safe(mode, t, &drm_connector->modes, head)
 823                 mode->status = MODE_UNVERIFIED;
 824
 825         connected = connector->detect(connector);
 826
 827         if (connected)
 828                 drm_connector->status = connector_status_connected;
 829         else
 830                 drm_connector->status = connector_status_disconnected;
 831
 832         if (!connected) {
 833                 NV50_DEBUG("%s is disconnected\n", drm_get_connector_name(drm_connector));
 834                 /* TODO set EDID to NULL */
 835                 return;
 836         }
 837
 838         /* Not all connnectors have an i2c channel. */
 839         if (connector->i2c_chan)
 840                 edid = (struct edid *) drm_do_probe_ddc_edid(&connector->i2c_chan->adapter);
 841
 842         if (edid) {
 843                 drm_mode_connector_update_edid_property(drm_connector, edid);
 844                 ret = drm_add_edid_modes(drm_connector, edid);
 845                 connector->digital = edid->digital; /* cache */
 846         }
 847
 848         if (ret) /* number of modes  > 1 */
 849                 drm_mode_connector_list_update(drm_connector);
 850
 851         if (maxX && maxY)
 852                 drm_mode_validate_size(drm_connector->dev, &drm_connector->modes, maxX, maxY, 0);
 853
 854         list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
 855                 if (mode->status == MODE_OK) {
 856                         struct nouveau_hw_mode *hw_mode = nv50_kms_to_hw_mode(mode);
 857                         struct nv50_output *output = connector->to_output(connector, connector->digital);
 858
 859                         mode->status = output->validate_mode(output, hw_mode);
 860                         /* find native mode, TODO: also check if we actually found one */
 861                         if (mode->status == MODE_OK) {
 862                                 if (mode->type & DRM_MODE_TYPE_PREFERRED)
 863                                         *output->native_mode = *hw_mode;
 864                         }
 865                         kfree(hw_mode);
 866                 }
 867         }
 868
 869         /* revalidate now that we have native mode */
 870         list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
 871                 if (mode->status == MODE_OK) {
 872                         struct nouveau_hw_mode *hw_mode = nv50_kms_to_hw_mode(mode);
 873                         struct nv50_output *output = connector->to_output(connector, connector->digital);
 874
 875                         mode->status = output->validate_mode(output, hw_mode);
 876                         kfree(hw_mode);
 877                 }
 878         }
 879
 880         drm_mode_prune_invalid(drm_connector->dev, &drm_connector->modes, TRUE);
 881
 882         if (list_empty(&drm_connector->modes)) {
 883                 struct drm_display_mode *stdmode;
 884                 struct nouveau_hw_mode *hw_mode;
 885                 struct nv50_output *output;
 886
 887                 NV50_DEBUG("No valid modes on %s\n", drm_get_connector_name(drm_connector));
 888
 889                 /* Should we do this here ???
 890                  * When no valid EDID modes are available we end up
 891                  * here and bailed in the past, now we add a standard
 892                  * 640x480@60Hz mode and carry on.
 893                  */
 894                 stdmode = drm_mode_duplicate(drm_connector->dev, &std_mode[0]);
 895                 drm_mode_probed_add(drm_connector, stdmode);
 896                 drm_mode_list_concat(&drm_connector->probed_modes,
 897                                      &drm_connector->modes);
 898
 899                 /* also add it as native mode */
 900                 hw_mode = nv50_kms_to_hw_mode(mode);
 901                 output = connector->to_output(connector, connector->digital);
 902
 903                 if (hw_mode)
 904                         *output->native_mode = *hw_mode;
 905
 906                 DRM_DEBUG("Adding standard 640x480 @ 60Hz to %s\n",
 907                           drm_get_connector_name(drm_connector));
 908         }
 909
 910         drm_mode_sort(&drm_connector->modes);
 911
 912         NV50_DEBUG("Probed modes for %s\n", drm_get_connector_name(drm_connector));
 913
 914         list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
 915                 mode->vrefresh = drm_mode_vrefresh(mode);
 916
 917                 /* is this needed, as it's unused by the driver? */
 918                 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
 919                 drm_mode_debug_printmodeline(mode);
 920         }
 921 }
 922
 923 static const struct drm_connector_funcs nv50_kms_connector_funcs = {
 924         .save = NULL,
 925         .restore = NULL,
 926         .detect = nv50_kms_connector_detect,
 927         .destroy = nv50_kms_connector_destroy,
 928         .fill_modes = nv50_kms_connector_fill_modes,
 929 };
 930
 931 static int nv50_kms_connectors_init(struct drm_device *dev)
 932 {
 933         struct nv50_display *display = nv50_get_display(dev);
 934         struct nv50_connector *connector = NULL;
 935         int i;
 936
 937         list_for_each_entry(connector, &display->connectors, head) {
 938                 struct drm_connector *drm_connector = to_nv50_kms_connector(connector);
 939                 uint32_t type = DRM_MODE_CONNECTOR_Unknown;
 940
 941                 switch (connector->type) {
 942                         case CONNECTOR_VGA:
 943                                 type = DRM_MODE_CONNECTOR_VGA;
 944                                 break;
 945                         case CONNECTOR_DVI_D:
 946                                 type = DRM_MODE_CONNECTOR_DVID;
 947                                 break;
 948                         case CONNECTOR_DVI_I:
 949                                 type = DRM_MODE_CONNECTOR_DVII;
 950                                 break;
 951                         case CONNECTOR_LVDS:
 952                                 type = DRM_MODE_CONNECTOR_LVDS;
 953                                 break;
 954                         case CONNECTOR_TV:
 955                                 type = DRM_MODE_CONNECTOR_SVIDEO;
 956                                 break;
 957                         default:
 958                                 type = DRM_MODE_CONNECTOR_Unknown;
 959                                 break;
 960                 }
 961
 962                 if (type == DRM_MODE_CONNECTOR_Unknown) {
 963                         DRM_ERROR("DRM_MODE_CONNECTOR_Unknown encountered\n");
 964                         continue;
 965                 }
 966
 967                 /* It should be allowed sometimes, but let's be safe for the moment. */
 968                 drm_connector->interlace_allowed = false;
 969                 drm_connector->doublescan_allowed = false;
 970
 971                 drm_connector_init(dev, drm_connector, &nv50_kms_connector_funcs, type);
 972
 973                 /* attach encoders, possibilities are analog + digital */
 974                 for (i = 0; i < 2; i++) {
 975                         struct drm_encoder *drm_encoder = NULL;
 976                         struct nv50_output *output = connector->to_output(connector, i);
 977                         if (!output)
 978                                 continue;
 979
 980                         drm_encoder = to_nv50_kms_encoder(output);
 981                         if (!drm_encoder) {
 982                                 DRM_ERROR("No struct drm_connector to match struct nv50_output\n");
 983                                 continue;
 984                         }
 985
 986                         drm_mode_connector_attach_encoder(drm_connector, drm_encoder);
 987                 }
 988
 989                 drm_sysfs_connector_add(drm_connector);
 990         }
 991
 992         return 0;
 993 }
 994
 995 /*
 996  * Main functions
 997  */
 998
 999 int nv50_kms_init(struct drm_device *dev)
1000 {
1001         struct drm_nouveau_private *dev_priv = dev->dev_private;
1002         struct nv50_kms_priv *kms_priv = kzalloc(sizeof(struct nv50_kms_priv), GFP_KERNEL);
1003         struct nv50_display *display = NULL;
1004         int rval = 0;
1005
1006         if (!kms_priv)
1007                 return -ENOMEM;
1008
1009         dev_priv->kms_priv = kms_priv;
1010
1011         /* function pointers */
1012         /* an allocation interface that deals with the outside world, without polluting the core. */
1013         dev_priv->alloc_crtc = nv50_kms_alloc_crtc;
1014         dev_priv->alloc_output = nv50_kms_alloc_output;
1015         dev_priv->alloc_connector = nv50_kms_alloc_connector;
1016
1017         dev_priv->free_crtc = nv50_kms_free_crtc;
1018         dev_priv->free_output = nv50_kms_free_output;
1019         dev_priv->free_connector = nv50_kms_free_connector;
1020
1021         /* bios is needed for tables. */
1022         rval = nouveau_parse_bios(dev);
1023         if (rval != 0)
1024                 goto out;
1025
1026         /* init basic kernel modesetting */
1027         drm_mode_config_init(dev);
1028
1029         dev->mode_config.min_width = 0;
1030         dev->mode_config.min_height = 0;
1031
1032         dev->mode_config.funcs = (void *)&nv50_kms_mode_funcs;
1033
1034         dev->mode_config.max_width = 8192;
1035         dev->mode_config.max_height = 8192;
1036
1037         dev->mode_config.fb_base = dev_priv->fb_phys;
1038
1039         /* init kms lists */
1040         INIT_LIST_HEAD(&kms_priv->crtcs);
1041         INIT_LIST_HEAD(&kms_priv->encoders);
1042         INIT_LIST_HEAD(&kms_priv->connectors);
1043
1044         /* init the internal core, must be done first. */
1045         rval = nv50_display_create(dev);
1046         if (rval != 0)
1047                 goto out;
1048
1049         display = nv50_get_display(dev);
1050         if (!display) {
1051                 rval = -EINVAL;
1052                 goto out;
1053         }
1054
1055         /* pre-init now */
1056         rval = display->pre_init(display);
1057         if (rval != 0)
1058                 goto out;
1059
1060         /* init external layer */
1061         rval = nv50_kms_crtcs_init(dev);
1062         if (rval != 0)
1063                 goto out;
1064
1065         rval = nv50_kms_encoders_init(dev);
1066         if (rval != 0)
1067                 goto out;
1068
1069         rval = nv50_kms_connectors_init(dev);
1070         if (rval != 0)
1071                 goto out;
1072
1073         /* init now, this'll kill the textmode */
1074         rval = display->init(display);
1075         if (rval != 0)
1076                 goto out;
1077
1078         /* process cmdbuffer */
1079         display->update(display);
1080
1081         return 0;
1082
1083 out:
1084         kfree(kms_priv);
1085         dev_priv->kms_priv = NULL;
1086
1087         return rval;
1088 }
1089
1090 int nv50_kms_destroy(struct drm_device *dev)
1091 {
1092         drm_mode_config_cleanup(dev);
1093
1094         return 0;
1095 }
1096