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                 NV50_DEBUG("Sanity check failed\n");
 303                 goto out;
 304         }
 305
 306         if (!set->crtc || !set->connectors) {
 307                 NV50_DEBUG("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 (!modeset && !switch_fb && !blank) {
 327                 DRM_ERROR("There is nothing to do, bad input.\n");
 328                 goto out;
 329         }
 330
 331         /* Basic variable setting */
 332         dev = set->crtc->dev;
 333         dev_priv = dev->dev_private;
 334         display = nv50_get_display(dev);
 335         crtc = to_nv50_crtc(set->crtc);
 336
 337         /**
 338          * Wiring up the encoders and connectors.
 339          */
 340
 341         if (modeset) {
 342                 /* Mode validation */
 343                 hw_mode = nv50_kms_to_hw_mode(set->mode);
 344
 345                 rval = crtc->validate_mode(crtc, hw_mode);
 346
 347                 if (rval != MODE_OK) {
 348                         NV50_DEBUG("Mode not ok\n");
 349                         goto out;
 350                 }
 351
 352                 for (i = 0; i < set->num_connectors; i++) {
 353                         drm_connector = set->connectors[i];
 354                         if (!drm_connector) {
 355                                 NV50_DEBUG("No connector\n");
 356                                 goto out;
 357                         }
 358                         connector = to_nv50_connector(drm_connector);
 359
 360                         output = connector->to_output(connector, connector->digital);
 361                         if (!output) {
 362                                 NV50_DEBUG("No output\n");
 363                                 goto out;
 364                         }
 365
 366                         rval = output->validate_mode(output, hw_mode);
 367                         if (rval != MODE_OK) {
 368                                 NV50_DEBUG("Mode not ok\n");
 369                                 goto out;
 370                         }
 371                 }
 372
 373                 /* Validation done, move on to cleaning of existing structures. */
 374
 375                 /* find encoders that use this crtc. */
 376                 list_for_each_entry(drm_encoder, &dev->mode_config.encoder_list, head) {
 377                         if (drm_encoder->crtc == set->crtc) {
 378                                 /* find the connector that goes with it */
 379                                 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 380                                         if (drm_connector->encoder == drm_encoder) {
 381                                                 drm_connector->encoder =  NULL;
 382                                                 break;
 383                                         }
 384                                 }
 385                                 drm_encoder->crtc = NULL;
 386                         }
 387                 }
 388
 389                 /* now find if our desired encoders or connectors are in use already. */
 390                 for (i = 0; i < set->num_connectors; i++) {
 391                         drm_connector = set->connectors[i];
 392                         if (!drm_connector) {
 393                                 NV50_DEBUG("No connector\n");
 394                                 goto out;
 395                         }
 396
 397                         if (!drm_connector->encoder)
 398                                 continue;
 399
 400                         drm_encoder = drm_connector->encoder;
 401                         drm_connector->encoder = NULL;
 402
 403                         if (!drm_encoder->crtc)
 404                                 continue;
 405
 406                         drm_crtc = drm_encoder->crtc;
 407                         drm_encoder->crtc = NULL;
 408
 409                         crtc = to_nv50_crtc(drm_crtc);
 410                         crtc->active = false;
 411                         drm_crtc->enabled = false;
 412                 }
 413
 414                 /* Time to wire up the public encoder, the private one will be handled later. */
 415                 for (i = 0; i < set->num_connectors; i++) {
 416                         drm_connector = set->connectors[i];
 417                         if (!drm_connector) {
 418                                 NV50_DEBUG("No connector\n");
 419                                 goto out;
 420                         }
 421
 422                         output = connector->to_output(connector, connector->digital);
 423                         if (!output) {
 424                                 NV50_DEBUG("No output\n");
 425                                 goto out;
 426                         }
 427
 428                         /* find the encoder public structure that matches out output structure. */
 429                         drm_encoder = to_nv50_kms_encoder(output);
 430
 431                         if (!drm_encoder) {
 432                                 NV50_DEBUG("No encoder\n");
 433                                 goto out;
 434                         }
 435
 436                         drm_encoder->crtc = set->crtc;
 437                         drm_connector->encoder = drm_encoder;
 438                 }
 439         }
 440
 441         /**
 442          * Unwire encoders and connectors, etc.
 443          */
 444
 445         if (blank) {
 446                 crtc = to_nv50_crtc(drm_crtc);
 447
 448                 crtc->active = false;
 449                 set->crtc->enabled = false;
 450
 451                 /* find encoders that use this crtc. */
 452                 list_for_each_entry(drm_encoder, &dev->mode_config.encoder_list, head) {
 453                         if (drm_encoder->crtc == set->crtc) {
 454                                 /* find the connector that goes with it */
 455                                 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 456                                         if (drm_connector->encoder == drm_encoder) {
 457                                                 drm_connector->encoder =  NULL;
 458                                                 break;
 459                                         }
 460                                 }
 461                                 drm_encoder->crtc = NULL;
 462                         }
 463                 }
 464         }
 465
 466         /**
 467          * All state should now be updated, now onto the real work.
 468          */
 469
 470         /* mirror everything to the private structs */
 471         nv50_kms_mirror_routing(dev);
 472
 473         /**
 474          * Bind framebuffer.
 475          */
 476
 477         if (switch_fb) {
 478                 /* set framebuffer */
 479                 set->crtc->fb = set->fb;
 480
 481                 /* set private framebuffer */
 482                 crtc = to_nv50_crtc(set->crtc);
 483                 fb_info.block = find_block_by_handle(dev_priv->fb_heap, set->fb->mm_handle);
 484                 fb_info.width = set->fb->width;
 485                 fb_info.height = set->fb->height;
 486                 fb_info.depth = set->fb->depth;
 487                 fb_info.bpp = set->fb->bits_per_pixel;
 488                 fb_info.pitch = set->fb->pitch;
 489                 fb_info.x = set->x;
 490                 fb_info.y = set->y;
 491
 492                 rval = crtc->fb->bind(crtc, &fb_info);
 493                 if (rval != 0) {
 494                         NV50_DEBUG("fb_bind failed\n");
 495                         goto out;
 496                 }
 497         }
 498
 499         /* this is !cursor_show */
 500         if (!crtc->cursor->enabled) {
 501                 rval = crtc->cursor->enable(crtc);
 502                 if (rval != 0) {
 503                         NV50_DEBUG("cursor_enable failed\n");
 504                         goto out;
 505                 }
 506         }
 507
 508         /**
 509          * Blanking.
 510          */
 511
 512         if (blank) {
 513                 crtc = to_nv50_crtc(set->crtc);
 514
 515                 rval = crtc->blank(crtc, TRUE);
 516                 if (rval != 0) {
 517                         DRM_ERROR("blanking failed\n");
 518                         goto out;
 519                 }
 520         }
 521
 522         /**
 523          * Change framebuffer, without changing mode.
 524          */
 525
 526         if (switch_fb && !modeset) {
 527                 crtc = to_nv50_crtc(set->crtc);
 528
 529                 rval = crtc->blank(crtc, TRUE);
 530                 if (rval != 0) {
 531                         DRM_ERROR("blanking failed\n");
 532                         goto out;
 533                 }
 534
 535                 rval = crtc->set_fb(crtc);
 536                 if (rval != 0) {
 537                         DRM_ERROR("set_fb failed\n");
 538                         goto out;
 539                 }
 540
 541                 /* this also sets the fb offset */
 542                 rval = crtc->blank(crtc, FALSE);
 543                 if (rval != 0) {
 544                         DRM_ERROR("unblanking failed\n");
 545                         goto out;
 546                 }
 547         }
 548
 549         /**
 550          * Normal modesetting.
 551          */
 552
 553         if (modeset) {
 554                 /* disconnect unused outputs */
 555                 list_for_each_entry(output, &display->outputs, head) {
 556                         if (output->crtc)
 557                                 crtc_mask |= 1 << output->crtc->index;
 558                         else
 559                                 output->execute_mode(output, TRUE);
 560                 }
 561
 562                 rval = crtc->set_mode(crtc, hw_mode);
 563                 if (rval != 0) {
 564                         NV50_DEBUG("crtc mode set failed\n");
 565                         goto out;
 566                 }
 567
 568                 /* find native mode. */
 569                 list_for_each_entry(output, &display->outputs, head) {
 570                         if (output->crtc != crtc)
 571                                 continue;
 572
 573                         *crtc->native_mode = *output->native_mode;
 574                         list_for_each_entry(connector, &display->connectors, head) {
 575                                 if (connector->output != output)
 576                                         continue;
 577
 578                                 crtc->scaling_mode = connector->scaling_mode;
 579                                 break;
 580                         }
 581
 582                         if (crtc->scaling_mode == SCALE_PANEL)
 583                                 crtc->use_native_mode = false;
 584                         else
 585                                 crtc->use_native_mode = true;
 586
 587                         break; /* no use in finding more than one mode */
 588                 }
 589
 590                 rval = crtc->execute_mode(crtc);
 591                 if (rval != 0) {
 592                         NV50_DEBUG("crtc execute mode failed\n");
 593                         goto out;
 594                 }
 595
 596                 list_for_each_entry(output, &display->outputs, head) {
 597                         if (output->crtc != crtc)
 598                                 continue;
 599
 600                         rval = output->execute_mode(output, FALSE);
 601                         if (rval != 0) {
 602                                 NV50_DEBUG("output execute mode failed\n");
 603                                 goto out;
 604                         }
 605                 }
 606
 607                 rval = crtc->set_scale(crtc);
 608                 if (rval != 0) {
 609                         NV50_DEBUG("crtc set scale failed\n");
 610                         goto out;
 611                 }
 612
 613                 /* next line changes crtc, so putting it here is important */
 614                 display->last_crtc = crtc->index;
 615
 616                 /* blank any unused crtcs */
 617                 list_for_each_entry(crtc, &display->crtcs, head) {
 618                         if (!(crtc_mask & (1 << crtc->index)))
 619                                 crtc->blank(crtc, TRUE);
 620                 }
 621         }
 622
 623         display->update(display);
 624
 625         kfree(hw_mode);
 626
 627         return 0;
 628
 629 out:
 630         display->update(display);
 631
 632         kfree(hw_mode);
 633
 634         if (rval != 0)
 635                 return rval;
 636         else
 637                 return -EINVAL;
 638 }
 639
 640 static void nv50_kms_crtc_destroy(struct drm_crtc *drm_crtc)
 641 {
 642         struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
 643
 644         drm_crtc_cleanup(drm_crtc);
 645
 646         /* this will even destroy the public structure. */
 647         crtc->destroy(crtc);
 648 }
 649
 650 static const struct drm_crtc_funcs nv50_kms_crtc_funcs = {
 651         .save = NULL,
 652         .restore = NULL,
 653         .cursor_set = nv50_kms_crtc_cursor_set,
 654         .cursor_move = nv50_kms_crtc_cursor_move,
 655         .gamma_set = nv50_kms_crtc_gamma_set,
 656         .set_config = nv50_kms_crtc_set_config,
 657         .destroy = nv50_kms_crtc_destroy,
 658 };
 659
 660 static int nv50_kms_crtcs_init(struct drm_device *dev)
 661 {
 662         struct nv50_display *display = nv50_get_display(dev);
 663         struct nv50_crtc *crtc = NULL;
 664
 665         /*
 666          * This may look a bit confusing, but:
 667          * The internal structure is already allocated and so is the public one.
 668          * Just a matter of getting to the memory and register it.
 669          */
 670         list_for_each_entry(crtc, &display->crtcs, head) {
 671                 struct drm_crtc *drm_crtc = to_nv50_kms_crtc(crtc);
 672
 673                 drm_crtc_init(dev, drm_crtc, &nv50_kms_crtc_funcs);
 674         }
 675
 676         return 0;
 677 }
 678
 679 /*
 680  * Encoder functions
 681  */
 682
 683 static void nv50_kms_encoder_destroy(struct drm_encoder *drm_encoder)
 684 {
 685         struct nv50_output *output = to_nv50_output(drm_encoder);
 686
 687         drm_encoder_cleanup(drm_encoder);
 688
 689         /* this will even destroy the public structure. */
 690         output->destroy(output);
 691 }
 692
 693 static const struct drm_encoder_funcs nv50_kms_encoder_funcs = {
 694         .destroy = nv50_kms_encoder_destroy,
 695 };
 696
 697 static int nv50_kms_encoders_init(struct drm_device *dev)
 698 {
 699         struct nv50_display *display = nv50_get_display(dev);
 700         struct nv50_output *output = NULL;
 701
 702         list_for_each_entry(output, &display->outputs, head) {
 703                 struct drm_encoder *drm_encoder = to_nv50_kms_encoder(output);
 704                 uint32_t type = DRM_MODE_ENCODER_NONE;
 705
 706                 switch (output->type) {
 707                         case OUTPUT_DAC:
 708                                 type = DRM_MODE_ENCODER_DAC;
 709                                 break;
 710                         case OUTPUT_TMDS:
 711                                 type = DRM_MODE_ENCODER_TMDS;
 712                                 break;
 713                         case OUTPUT_LVDS:
 714                                 type = DRM_MODE_ENCODER_LVDS;
 715                                 break;
 716                         case OUTPUT_TV:
 717                                 type = DRM_MODE_ENCODER_TVDAC;
 718                                 break;
 719                         default:
 720                                 type = DRM_MODE_ENCODER_NONE;
 721                                 break;
 722                 }
 723
 724                 if (type == DRM_MODE_ENCODER_NONE) {
 725                         DRM_ERROR("DRM_MODE_ENCODER_NONE encountered\n");
 726                         continue;
 727                 }
 728
 729                 drm_encoder_init(dev, drm_encoder, &nv50_kms_encoder_funcs, type);
 730
 731                 /* I've never seen possible crtc's restricted. */
 732                 drm_encoder->possible_crtcs = 3;
 733                 drm_encoder->possible_clones = 0;
 734         }
 735
 736         return 0;
 737 }
 738
 739 /*
 740  * Connector functions
 741  */
 742
 743 void nv50_kms_connector_detect_all(struct drm_device *dev)
 744 {
 745         struct drm_connector *drm_connector = NULL;
 746
 747         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 748                 drm_connector->funcs->detect(drm_connector);
 749         }
 750 }
 751
 752 static enum drm_connector_status nv50_kms_connector_detect(struct drm_connector *drm_connector)
 753 {
 754         struct nv50_connector *connector = to_nv50_connector(drm_connector);
 755         struct drm_device *dev = drm_connector->dev;
 756         bool connected;
 757         int old_status;
 758
 759         connected = connector->detect(connector);
 760
 761         old_status = drm_connector->status;
 762
 763         if (connected)
 764                 drm_connector->status = connector_status_connected;
 765         else
 766                 drm_connector->status = connector_status_disconnected;
 767
 768         /* update our modes whenever there is reason to */
 769         if (old_status != drm_connector->status) {
 770                 drm_connector->funcs->fill_modes(drm_connector, 0, 0);
 771                 /* notify fb of changes */
 772                 dev->mode_config.funcs->fb_changed(dev);
 773         }
 774
 775         return drm_connector->status;
 776 }
 777
 778 static void nv50_kms_connector_destroy(struct drm_connector *drm_connector)
 779 {
 780         struct nv50_connector *connector = to_nv50_connector(drm_connector);
 781
 782         drm_sysfs_connector_remove(drm_connector);
 783         drm_connector_cleanup(drm_connector);
 784
 785         /* this will even destroy the public structure. */
 786         connector->destroy(connector);
 787 }
 788
 789 /*
 790  * Detailed mode info for a standard 640x480@60Hz monitor
 791  */
 792 static struct drm_display_mode std_mode[] = {
 793         /*{ DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 25200, 640, 656,
 794                  752, 800, 0, 480, 490, 492, 525, 0,
 795                  V_NHSYNC | V_NVSYNC) },*/ /* 640x480@60Hz */
 796         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DEFAULT, 135000, 1280, 1296,
 797                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
 798                    V_PHSYNC | V_PVSYNC) }, /* 1280x1024@75Hz */
 799 };
 800
 801 static void nv50_kms_connector_fill_modes(struct drm_connector *drm_connector, uint32_t maxX, uint32_t maxY)
 802 {
 803         struct nv50_connector *connector = to_nv50_connector(drm_connector);
 804         int ret = 0;
 805         bool connected;
 806         struct drm_display_mode *mode, *t;
 807         struct edid *edid = NULL;
 808
 809         NV50_DEBUG("%s\n", drm_get_connector_name(drm_connector));
 810         /* set all modes to the unverified state */
 811         list_for_each_entry_safe(mode, t, &drm_connector->modes, head)
 812                 mode->status = MODE_UNVERIFIED;
 813
 814         connected = connector->detect(connector);
 815
 816         if (connected)
 817                 drm_connector->status = connector_status_connected;
 818         else
 819                 drm_connector->status = connector_status_disconnected;
 820
 821         if (!connected) {
 822                 NV50_DEBUG("%s is disconnected\n", drm_get_connector_name(drm_connector));
 823                 /* TODO set EDID to NULL */
 824                 return;
 825         }
 826
 827         /* Not all connnectors have an i2c channel. */
 828         if (connector->i2c_chan)
 829                 edid = (struct edid *) drm_do_probe_ddc_edid(&connector->i2c_chan->adapter);
 830
 831         if (edid) {
 832                 drm_mode_connector_update_edid_property(drm_connector, edid);
 833                 ret = drm_add_edid_modes(drm_connector, edid);
 834                 connector->digital = edid->digital; /* cache */
 835         }
 836
 837         if (ret) /* number of modes  > 1 */
 838                 drm_mode_connector_list_update(drm_connector);
 839
 840         if (maxX && maxY)
 841                 drm_mode_validate_size(drm_connector->dev, &drm_connector->modes, maxX, maxY, 0);
 842
 843         list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
 844                 if (mode->status == MODE_OK) {
 845                         struct nouveau_hw_mode *hw_mode = nv50_kms_to_hw_mode(mode);
 846                         struct nv50_output *output = connector->to_output(connector, connector->digital);
 847
 848                         mode->status = output->validate_mode(output, hw_mode);
 849                         /* find native mode, TODO: also check if we actually found one */
 850                         if (mode->status == MODE_OK) {
 851                                 if (mode->type & DRM_MODE_TYPE_PREFERRED)
 852                                         *output->native_mode = *hw_mode;
 853                         }
 854                         kfree(hw_mode);
 855                 }
 856         }
 857
 858         /* revalidate now that we have native mode */
 859         list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
 860                 if (mode->status == MODE_OK) {
 861                         struct nouveau_hw_mode *hw_mode = nv50_kms_to_hw_mode(mode);
 862                         struct nv50_output *output = connector->to_output(connector, connector->digital);
 863
 864                         mode->status = output->validate_mode(output, hw_mode);
 865                         kfree(hw_mode);
 866                 }
 867         }
 868
 869         drm_mode_prune_invalid(drm_connector->dev, &drm_connector->modes, TRUE);
 870
 871         if (list_empty(&drm_connector->modes)) {
 872                 struct drm_display_mode *stdmode;
 873                 struct nouveau_hw_mode *hw_mode;
 874                 struct nv50_output *output;
 875
 876                 NV50_DEBUG("No valid modes on %s\n", drm_get_connector_name(drm_connector));
 877
 878                 /* Should we do this here ???
 879                  * When no valid EDID modes are available we end up
 880                  * here and bailed in the past, now we add a standard
 881                  * 640x480@60Hz mode and carry on.
 882                  */
 883                 stdmode = drm_mode_duplicate(drm_connector->dev, &std_mode[0]);
 884                 drm_mode_probed_add(drm_connector, stdmode);
 885                 drm_mode_list_concat(&drm_connector->probed_modes,
 886                                      &drm_connector->modes);
 887
 888                 /* also add it as native mode */
 889                 hw_mode = nv50_kms_to_hw_mode(mode);
 890                 output = connector->to_output(connector, connector->digital);
 891
 892                 if (hw_mode)
 893                         *output->native_mode = *hw_mode;
 894
 895                 DRM_DEBUG("Adding standard 640x480 @ 60Hz to %s\n",
 896                           drm_get_connector_name(drm_connector));
 897         }
 898
 899         drm_mode_sort(&drm_connector->modes);
 900
 901         NV50_DEBUG("Probed modes for %s\n", drm_get_connector_name(drm_connector));
 902
 903         list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
 904                 mode->vrefresh = drm_mode_vrefresh(mode);
 905
 906                 /* is this needed, as it's unused by the driver? */
 907                 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
 908                 drm_mode_debug_printmodeline(mode);
 909         }
 910 }
 911
 912 static const struct drm_connector_funcs nv50_kms_connector_funcs = {
 913         .save = NULL,
 914         .restore = NULL,
 915         .detect = nv50_kms_connector_detect,
 916         .destroy = nv50_kms_connector_destroy,
 917         .fill_modes = nv50_kms_connector_fill_modes,
 918 };
 919
 920 static int nv50_kms_connectors_init(struct drm_device *dev)
 921 {
 922         struct nv50_display *display = nv50_get_display(dev);
 923         struct nv50_connector *connector = NULL;
 924         int i;
 925
 926         list_for_each_entry(connector, &display->connectors, head) {
 927                 struct drm_connector *drm_connector = to_nv50_kms_connector(connector);
 928                 uint32_t type = DRM_MODE_CONNECTOR_Unknown;
 929
 930                 switch (connector->type) {
 931                         case CONNECTOR_VGA:
 932                                 type = DRM_MODE_CONNECTOR_VGA;
 933                                 break;
 934                         case CONNECTOR_DVI_D:
 935                                 type = DRM_MODE_CONNECTOR_DVID;
 936                                 break;
 937                         case CONNECTOR_DVI_I:
 938                                 type = DRM_MODE_CONNECTOR_DVII;
 939                                 break;
 940                         case CONNECTOR_LVDS:
 941                                 type = DRM_MODE_CONNECTOR_LVDS;
 942                                 break;
 943                         case CONNECTOR_TV:
 944                                 type = DRM_MODE_CONNECTOR_SVIDEO;
 945                                 break;
 946                         default:
 947                                 type = DRM_MODE_CONNECTOR_Unknown;
 948                                 break;
 949                 }
 950
 951                 if (type == DRM_MODE_CONNECTOR_Unknown) {
 952                         DRM_ERROR("DRM_MODE_CONNECTOR_Unknown encountered\n");
 953                         continue;
 954                 }
 955
 956                 /* It should be allowed sometimes, but let's be safe for the moment. */
 957                 drm_connector->interlace_allowed = false;
 958                 drm_connector->doublescan_allowed = false;
 959
 960                 drm_connector_init(dev, drm_connector, &nv50_kms_connector_funcs, type);
 961
 962                 /* attach encoders, possibilities are analog + digital */
 963                 for (i = 0; i < 2; i++) {
 964                         struct drm_encoder *drm_encoder = NULL;
 965                         struct nv50_output *output = connector->to_output(connector, i);
 966                         if (!output)
 967                                 continue;
 968
 969                         drm_encoder = to_nv50_kms_encoder(output);
 970                         if (!drm_encoder) {
 971                                 DRM_ERROR("No struct drm_connector to match struct nv50_output\n");
 972                                 continue;
 973                         }
 974
 975                         drm_mode_connector_attach_encoder(drm_connector, drm_encoder);
 976                 }
 977
 978                 drm_sysfs_connector_add(drm_connector);
 979         }
 980
 981         return 0;
 982 }
 983
 984 /*
 985  * Main functions
 986  */
 987
 988 int nv50_kms_init(struct drm_device *dev)
 989 {
 990         struct drm_nouveau_private *dev_priv = dev->dev_private;
 991         struct nv50_kms_priv *kms_priv = kzalloc(sizeof(struct nv50_kms_priv), GFP_KERNEL);
 992         struct nv50_display *display = NULL;
 993         int rval = 0;
 994
 995         if (!kms_priv)
 996                 return -ENOMEM;
 997
 998         dev_priv->kms_priv = kms_priv;
 999
1000         /* function pointers */
1001         /* an allocation interface that deals with the outside world, without polluting the core. */
1002         dev_priv->alloc_crtc = nv50_kms_alloc_crtc;
1003         dev_priv->alloc_output = nv50_kms_alloc_output;
1004         dev_priv->alloc_connector = nv50_kms_alloc_connector;
1005
1006         dev_priv->free_crtc = nv50_kms_free_crtc;
1007         dev_priv->free_output = nv50_kms_free_output;
1008         dev_priv->free_connector = nv50_kms_free_connector;
1009
1010         /* bios is needed for tables. */
1011         rval = nouveau_parse_bios(dev);
1012         if (rval != 0)
1013                 goto out;
1014
1015         /* init basic kernel modesetting */
1016         drm_mode_config_init(dev);
1017
1018         dev->mode_config.min_width = 0;
1019         dev->mode_config.min_height = 0;
1020
1021         dev->mode_config.funcs = (void *)&nv50_kms_mode_funcs;
1022
1023         dev->mode_config.max_width = 8192;
1024         dev->mode_config.max_height = 8192;
1025
1026         dev->mode_config.fb_base = dev_priv->fb_phys;
1027
1028         /* init kms lists */
1029         INIT_LIST_HEAD(&kms_priv->crtcs);
1030         INIT_LIST_HEAD(&kms_priv->encoders);
1031         INIT_LIST_HEAD(&kms_priv->connectors);
1032
1033         /* init the internal core, must be done first. */
1034         rval = nv50_display_create(dev);
1035         if (rval != 0)
1036                 goto out;
1037
1038         display = nv50_get_display(dev);
1039         if (!display) {
1040                 rval = -EINVAL;
1041                 goto out;
1042         }
1043
1044         /* pre-init now */
1045         rval = display->pre_init(display);
1046         if (rval != 0)
1047                 goto out;
1048
1049         /* init external layer */
1050         rval = nv50_kms_crtcs_init(dev);
1051         if (rval != 0)
1052                 goto out;
1053
1054         rval = nv50_kms_encoders_init(dev);
1055         if (rval != 0)
1056                 goto out;
1057
1058         rval = nv50_kms_connectors_init(dev);
1059         if (rval != 0)
1060                 goto out;
1061
1062         /* init now, this'll kill the textmode */
1063         rval = display->init(display);
1064         if (rval != 0)
1065                 goto out;
1066
1067         /* process cmdbuffer */
1068         display->update(display);
1069
1070         return 0;
1071
1072 out:
1073         kfree(kms_priv);
1074         dev_priv->kms_priv = NULL;
1075
1076         return rval;
1077 }
1078
1079 int nv50_kms_destroy(struct drm_device *dev)
1080 {
1081         drm_mode_config_cleanup(dev);
1082
1083         return 0;
1084 }
1085