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 = 0;
 237
 238         if (width != 64 || height != 64)
 239                 return -EINVAL;
 240
 241         /* set bo before doing show cursor */
 242         if (buffer_handle) {
 243                 rval = crtc->cursor->set_bo(crtc, (drm_handle_t) buffer_handle);
 244                 if (rval != 0)
 245                         goto out;
 246         }
 247
 248         crtc->cursor->visible = buffer_handle ? true : false;
 249
 250         if (buffer_handle) {
 251                 rval = crtc->cursor->show(crtc);
 252                 if (rval != 0)
 253                         goto out;
 254         } else { /* no handle implies hiding the cursor */
 255                 rval = crtc->cursor->hide(crtc);
 256                 goto out;
 257         }
 258
 259         if (rval != 0)
 260                 return rval;
 261
 262 out:
 263         /* in case this triggers any other cursor changes */
 264         display->update(display);
 265
 266         return rval;
 267 }
 268
 269 static int nv50_kms_crtc_cursor_move(struct drm_crtc *drm_crtc, int x, int y)
 270 {
 271         struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
 272
 273         return crtc->cursor->set_pos(crtc, x, y);
 274 }
 275
 276 void nv50_kms_crtc_gamma_set(struct drm_crtc *drm_crtc, u16 *r, u16 *g, u16 *b,
 277                 uint32_t size)
 278 {
 279         struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
 280
 281         if (size != 256)
 282                 return;
 283
 284         crtc->lut->set(crtc, (uint16_t *)r, (uint16_t *)g, (uint16_t *)b);
 285 }
 286
 287 int nv50_kms_crtc_set_config(struct drm_mode_set *set)
 288 {
 289         int rval = 0, i;
 290         uint32_t crtc_mask = 0;
 291         struct drm_device *dev = NULL;
 292         struct drm_nouveau_private *dev_priv = NULL;
 293         struct nv50_display *display = NULL;
 294         struct drm_connector *drm_connector = NULL;
 295         struct drm_encoder *drm_encoder = NULL;
 296         struct drm_crtc *drm_crtc = NULL;
 297
 298         struct nv50_crtc *crtc = NULL;
 299         struct nv50_output *output = NULL;
 300         struct nv50_connector *connector = NULL;
 301         struct nouveau_hw_mode *hw_mode = NULL;
 302         struct nv50_fb_info fb_info;
 303
 304         bool blank = false;
 305         bool switch_fb = false;
 306         bool modeset = false;
 307
 308         NV50_DEBUG("\n");
 309
 310         /*
 311          * Supported operations:
 312          * - Switch mode.
 313          * - Switch framebuffer.
 314          * - Blank screen.
 315          */
 316
 317         /* Sanity checking */
 318         if (!set) {
 319                 DRM_ERROR("Sanity check failed\n");
 320                 goto out;
 321         }
 322
 323         if (!set->crtc) {
 324                 DRM_ERROR("Sanity check failed\n");
 325                 goto out;
 326         }
 327
 328         if (set->mode) {
 329                 if (set->fb) {
 330                         if (!drm_mode_equal(set->mode, &set->crtc->mode))
 331                                 modeset = true;
 332
 333                         if (set->fb != set->crtc->fb)
 334                                 switch_fb = true;
 335
 336                         if (set->x != set->crtc->x || set->y != set->crtc->y)
 337                                 switch_fb = true;
 338                 }
 339         } else {
 340                 blank = true;
 341         }
 342
 343         if (!set->connectors && modeset) {
 344                 DRM_ERROR("Sanity check failed\n");
 345                 goto out;
 346         }
 347
 348         if (!modeset && !switch_fb && !blank) {
 349                 DRM_ERROR("There is nothing to do, bad input.\n");
 350                 goto out;
 351         }
 352
 353         /* Basic variable setting */
 354         dev = set->crtc->dev;
 355         dev_priv = dev->dev_private;
 356         display = nv50_get_display(dev);
 357         crtc = to_nv50_crtc(set->crtc);
 358
 359         /**
 360          * Wiring up the encoders and connectors.
 361          */
 362
 363         if (modeset) {
 364                 /* Mode validation */
 365                 hw_mode = nv50_kms_to_hw_mode(set->mode);
 366
 367                 rval = crtc->validate_mode(crtc, hw_mode);
 368
 369                 if (rval != MODE_OK) {
 370                         DRM_ERROR("Mode not ok\n");
 371                         goto out;
 372                 }
 373
 374                 for (i = 0; i < set->num_connectors; i++) {
 375                         drm_connector = set->connectors[i];
 376                         if (!drm_connector) {
 377                                 DRM_ERROR("No connector\n");
 378                                 goto out;
 379                         }
 380                         connector = to_nv50_connector(drm_connector);
 381
 382                         output = connector->to_output(connector, connector->digital);
 383                         if (!output) {
 384                                 DRM_ERROR("No output\n");
 385                                 goto out;
 386                         }
 387
 388                         rval = output->validate_mode(output, hw_mode);
 389                         if (rval != MODE_OK) {
 390                                 DRM_ERROR("Mode not ok\n");
 391                                 goto out;
 392                         }
 393                 }
 394
 395                 /* Validation done, move on to cleaning of existing structures. */
 396
 397                 /* find encoders that use this crtc. */
 398                 list_for_each_entry(drm_encoder, &dev->mode_config.encoder_list, head) {
 399                         if (drm_encoder->crtc == set->crtc) {
 400                                 /* find the connector that goes with it */
 401                                 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 402                                         if (drm_connector->encoder == drm_encoder) {
 403                                                 drm_connector->encoder =  NULL;
 404                                                 break;
 405                                         }
 406                                 }
 407                                 drm_encoder->crtc = NULL;
 408                         }
 409                 }
 410
 411                 /* now find if our desired encoders or connectors are in use already. */
 412                 for (i = 0; i < set->num_connectors; i++) {
 413                         drm_connector = set->connectors[i];
 414                         if (!drm_connector) {
 415                                 DRM_ERROR("No connector\n");
 416                                 goto out;
 417                         }
 418
 419                         if (!drm_connector->encoder)
 420                                 continue;
 421
 422                         drm_encoder = drm_connector->encoder;
 423                         drm_connector->encoder = NULL;
 424
 425                         if (!drm_encoder->crtc)
 426                                 continue;
 427
 428                         drm_crtc = drm_encoder->crtc;
 429                         drm_encoder->crtc = NULL;
 430
 431                         crtc = to_nv50_crtc(drm_crtc);
 432                         crtc->active = false;
 433                         drm_crtc->enabled = false;
 434                 }
 435
 436                 /* Time to wire up the public encoder, the private one will be handled later. */
 437                 for (i = 0; i < set->num_connectors; i++) {
 438                         drm_connector = set->connectors[i];
 439                         if (!drm_connector) {
 440                                 DRM_ERROR("No connector\n");
 441                                 goto out;
 442                         }
 443
 444                         output = connector->to_output(connector, connector->digital);
 445                         if (!output) {
 446                                 DRM_ERROR("No output\n");
 447                                 goto out;
 448                         }
 449
 450                         /* find the encoder public structure that matches out output structure. */
 451                         drm_encoder = to_nv50_kms_encoder(output);
 452
 453                         if (!drm_encoder) {
 454                                 DRM_ERROR("No encoder\n");
 455                                 goto out;
 456                         }
 457
 458                         drm_encoder->crtc = set->crtc;
 459                         drm_connector->encoder = drm_encoder;
 460                 }
 461         }
 462
 463         /**
 464          * Disable crtc.
 465          */
 466
 467         if (blank) {
 468                 crtc = to_nv50_crtc(set->crtc);
 469
 470                 /* keeping the encoders and connectors attached, so they can be tracked */
 471                 crtc->active = false;
 472                 set->crtc->enabled = false;
 473         }
 474
 475         /**
 476          * All state should now be updated, now onto the real work.
 477          */
 478
 479         /* mirror everything to the private structs */
 480         nv50_kms_mirror_routing(dev);
 481
 482         /**
 483          * Bind framebuffer.
 484          */
 485
 486         if (switch_fb) {
 487                 /* set framebuffer */
 488                 set->crtc->fb = set->fb;
 489
 490                 /* set private framebuffer */
 491                 crtc = to_nv50_crtc(set->crtc);
 492                 fb_info.block = find_block_by_handle(dev_priv->fb_heap, set->fb->mm_handle);
 493                 fb_info.width = set->fb->width;
 494                 fb_info.height = set->fb->height;
 495                 fb_info.depth = set->fb->depth;
 496                 fb_info.bpp = set->fb->bits_per_pixel;
 497                 fb_info.pitch = set->fb->pitch;
 498                 fb_info.x = set->x;
 499                 fb_info.y = set->y;
 500
 501                 rval = crtc->fb->bind(crtc, &fb_info);
 502                 if (rval != 0) {
 503                         DRM_ERROR("fb_bind failed\n");
 504                         goto out;
 505                 }
 506         }
 507
 508         /* this is !cursor_show */
 509         if (!crtc->cursor->enabled) {
 510                 rval = crtc->cursor->enable(crtc);
 511                 if (rval != 0) {
 512                         DRM_ERROR("cursor_enable failed\n");
 513                         goto out;
 514                 }
 515         }
 516
 517         /**
 518          * Blanking.
 519          */
 520
 521         if (blank) {
 522                 crtc = to_nv50_crtc(set->crtc);
 523
 524                 rval = crtc->blank(crtc, TRUE);
 525                 if (rval != 0) {
 526                         DRM_ERROR("blanking failed\n");
 527                         goto out;
 528                 }
 529
 530                 /* detach any outputs that are currently running on this crtc */
 531                 list_for_each_entry(drm_encoder, &dev->mode_config.encoder_list, head) {
 532                         if (drm_encoder->crtc == set->crtc) {
 533                                 output = to_nv50_output(drm_encoder);
 534
 535                                 rval = output->execute_mode(output, TRUE);
 536                                 if (rval != 0) {
 537                                         DRM_ERROR("detaching output failed\n");
 538                                         goto out;
 539                                 }
 540                         }
 541                 }
 542         }
 543
 544         /**
 545          * Change framebuffer, without changing mode.
 546          */
 547
 548         if (switch_fb && !modeset && !blank) {
 549                 crtc = to_nv50_crtc(set->crtc);
 550
 551                 rval = crtc->blank(crtc, TRUE);
 552                 if (rval != 0) {
 553                         DRM_ERROR("blanking failed\n");
 554                         goto out;
 555                 }
 556
 557                 rval = crtc->set_fb(crtc);
 558                 if (rval != 0) {
 559                         DRM_ERROR("set_fb failed\n");
 560                         goto out;
 561                 }
 562
 563                 /* this also sets the fb offset */
 564                 rval = crtc->blank(crtc, FALSE);
 565                 if (rval != 0) {
 566                         DRM_ERROR("unblanking failed\n");
 567                         goto out;
 568                 }
 569         }
 570
 571         /**
 572          * Normal modesetting.
 573          */
 574
 575         if (modeset) {
 576                 /* disconnect unused outputs */
 577                 list_for_each_entry(output, &display->outputs, head) {
 578                         if (output->crtc) {
 579                                 crtc_mask |= 1 << output->crtc->index;
 580                         } else {
 581                                 rval = output->execute_mode(output, TRUE);
 582                                 if (rval != 0) {
 583                                         DRM_ERROR("detaching output failed\n");
 584                                         goto out;
 585                                 }
 586                         }
 587                 }
 588
 589                 rval = crtc->set_mode(crtc, hw_mode);
 590                 if (rval != 0) {
 591                         DRM_ERROR("crtc mode set failed\n");
 592                         goto out;
 593                 }
 594
 595                 /* find native mode. */
 596                 list_for_each_entry(output, &display->outputs, head) {
 597                         if (output->crtc != crtc)
 598                                 continue;
 599
 600                         *crtc->native_mode = *output->native_mode;
 601                         list_for_each_entry(connector, &display->connectors, head) {
 602                                 if (connector->output != output)
 603                                         continue;
 604
 605                                 crtc->scaling_mode = connector->scaling_mode;
 606                                 break;
 607                         }
 608
 609                         if (crtc->scaling_mode == SCALE_PANEL)
 610                                 crtc->use_native_mode = false;
 611                         else
 612                                 crtc->use_native_mode = true;
 613
 614                         break; /* no use in finding more than one mode */
 615                 }
 616
 617                 rval = crtc->execute_mode(crtc);
 618                 if (rval != 0) {
 619                         DRM_ERROR("crtc execute mode failed\n");
 620                         goto out;
 621                 }
 622
 623                 list_for_each_entry(output, &display->outputs, head) {
 624                         if (output->crtc != crtc)
 625                                 continue;
 626
 627                         rval = output->execute_mode(output, FALSE);
 628                         if (rval != 0) {
 629                                 DRM_ERROR("output execute mode failed\n");
 630                                 goto out;
 631                         }
 632                 }
 633
 634                 rval = crtc->set_scale(crtc);
 635                 if (rval != 0) {
 636                         DRM_ERROR("crtc set scale failed\n");
 637                         goto out;
 638                 }
 639
 640                 /* next line changes crtc, so putting it here is important */
 641                 display->last_crtc = crtc->index;
 642
 643                 /* blank any unused crtcs */
 644                 list_for_each_entry(crtc, &display->crtcs, head) {
 645                         if (!(crtc_mask & (1 << crtc->index)))
 646                                 crtc->blank(crtc, TRUE);
 647                 }
 648         }
 649
 650         display->update(display);
 651
 652         kfree(hw_mode);
 653
 654         return 0;
 655
 656 out:
 657         if (display)
 658                 display->update(display);
 659
 660         kfree(hw_mode);
 661
 662         if (rval != 0)
 663                 return rval;
 664         else
 665                 return -EINVAL;
 666 }
 667
 668 static void nv50_kms_crtc_destroy(struct drm_crtc *drm_crtc)
 669 {
 670         struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
 671
 672         drm_crtc_cleanup(drm_crtc);
 673
 674         /* this will even destroy the public structure. */
 675         crtc->destroy(crtc);
 676 }
 677
 678 static const struct drm_crtc_funcs nv50_kms_crtc_funcs = {
 679         .save = NULL,
 680         .restore = NULL,
 681         .cursor_set = nv50_kms_crtc_cursor_set,
 682         .cursor_move = nv50_kms_crtc_cursor_move,
 683         .gamma_set = nv50_kms_crtc_gamma_set,
 684         .set_config = nv50_kms_crtc_set_config,
 685         .destroy = nv50_kms_crtc_destroy,
 686 };
 687
 688 static int nv50_kms_crtcs_init(struct drm_device *dev)
 689 {
 690         struct nv50_display *display = nv50_get_display(dev);
 691         struct nv50_crtc *crtc = NULL;
 692
 693         /*
 694          * This may look a bit confusing, but:
 695          * The internal structure is already allocated and so is the public one.
 696          * Just a matter of getting to the memory and register it.
 697          */
 698         list_for_each_entry(crtc, &display->crtcs, head) {
 699                 struct drm_crtc *drm_crtc = to_nv50_kms_crtc(crtc);
 700
 701                 drm_crtc_init(dev, drm_crtc, &nv50_kms_crtc_funcs);
 702         }
 703
 704         return 0;
 705 }
 706
 707 /*
 708  * Encoder functions
 709  */
 710
 711 static void nv50_kms_encoder_destroy(struct drm_encoder *drm_encoder)
 712 {
 713         struct nv50_output *output = to_nv50_output(drm_encoder);
 714
 715         drm_encoder_cleanup(drm_encoder);
 716
 717         /* this will even destroy the public structure. */
 718         output->destroy(output);
 719 }
 720
 721 static const struct drm_encoder_funcs nv50_kms_encoder_funcs = {
 722         .destroy = nv50_kms_encoder_destroy,
 723 };
 724
 725 static int nv50_kms_encoders_init(struct drm_device *dev)
 726 {
 727         struct nv50_display *display = nv50_get_display(dev);
 728         struct nv50_output *output = NULL;
 729
 730         list_for_each_entry(output, &display->outputs, head) {
 731                 struct drm_encoder *drm_encoder = to_nv50_kms_encoder(output);
 732                 uint32_t type = DRM_MODE_ENCODER_NONE;
 733
 734                 switch (output->type) {
 735                         case OUTPUT_DAC:
 736                                 type = DRM_MODE_ENCODER_DAC;
 737                                 break;
 738                         case OUTPUT_TMDS:
 739                                 type = DRM_MODE_ENCODER_TMDS;
 740                                 break;
 741                         case OUTPUT_LVDS:
 742                                 type = DRM_MODE_ENCODER_LVDS;
 743                                 break;
 744                         case OUTPUT_TV:
 745                                 type = DRM_MODE_ENCODER_TVDAC;
 746                                 break;
 747                         default:
 748                                 type = DRM_MODE_ENCODER_NONE;
 749                                 break;
 750                 }
 751
 752                 if (type == DRM_MODE_ENCODER_NONE) {
 753                         DRM_ERROR("DRM_MODE_ENCODER_NONE encountered\n");
 754                         continue;
 755                 }
 756
 757                 drm_encoder_init(dev, drm_encoder, &nv50_kms_encoder_funcs, type);
 758
 759                 /* I've never seen possible crtc's restricted. */
 760                 drm_encoder->possible_crtcs = 3;
 761                 drm_encoder->possible_clones = 0;
 762         }
 763
 764         return 0;
 765 }
 766
 767 /*
 768  * Connector functions
 769  */
 770
 771 void nv50_kms_connector_detect_all(struct drm_device *dev)
 772 {
 773         struct drm_connector *drm_connector = NULL;
 774
 775         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 776                 drm_connector->funcs->detect(drm_connector);
 777         }
 778 }
 779
 780 static enum drm_connector_status nv50_kms_connector_detect(struct drm_connector *drm_connector)
 781 {
 782         struct nv50_connector *connector = to_nv50_connector(drm_connector);
 783         struct drm_device *dev = drm_connector->dev;
 784         bool connected;
 785         int old_status;
 786
 787         connected = connector->detect(connector);
 788
 789         old_status = drm_connector->status;
 790
 791         if (connected)
 792                 drm_connector->status = connector_status_connected;
 793         else
 794                 drm_connector->status = connector_status_disconnected;
 795
 796         /* update our modes whenever there is reason to */
 797         if (old_status != drm_connector->status) {
 798                 drm_connector->funcs->fill_modes(drm_connector, 0, 0);
 799                 /* notify fb of changes */
 800                 dev->mode_config.funcs->fb_changed(dev);
 801         }
 802
 803         return drm_connector->status;
 804 }
 805
 806 static void nv50_kms_connector_destroy(struct drm_connector *drm_connector)
 807 {
 808         struct nv50_connector *connector = to_nv50_connector(drm_connector);
 809
 810         drm_sysfs_connector_remove(drm_connector);
 811         drm_connector_cleanup(drm_connector);
 812
 813         /* this will even destroy the public structure. */
 814         connector->destroy(connector);
 815 }
 816
 817 /*
 818  * Detailed mode info for a standard 640x480@60Hz monitor
 819  */
 820 static struct drm_display_mode std_mode[] = {
 821         /*{ DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 25200, 640, 656,
 822                  752, 800, 0, 480, 490, 492, 525, 0,
 823                  V_NHSYNC | V_NVSYNC) },*/ /* 640x480@60Hz */
 824         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DEFAULT, 135000, 1280, 1296,
 825                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
 826                    V_PHSYNC | V_PVSYNC) }, /* 1280x1024@75Hz */
 827 };
 828
 829 static void nv50_kms_connector_fill_modes(struct drm_connector *drm_connector, uint32_t maxX, uint32_t maxY)
 830 {
 831         struct nv50_connector *connector = to_nv50_connector(drm_connector);
 832         int ret = 0;
 833         bool connected;
 834         struct drm_display_mode *mode, *t;
 835         struct edid *edid = NULL;
 836
 837         NV50_DEBUG("%s\n", drm_get_connector_name(drm_connector));
 838         /* set all modes to the unverified state */
 839         list_for_each_entry_safe(mode, t, &drm_connector->modes, head)
 840                 mode->status = MODE_UNVERIFIED;
 841
 842         connected = connector->detect(connector);
 843
 844         if (connected)
 845                 drm_connector->status = connector_status_connected;
 846         else
 847                 drm_connector->status = connector_status_disconnected;
 848
 849         if (!connected) {
 850                 NV50_DEBUG("%s is disconnected\n", drm_get_connector_name(drm_connector));
 851                 /* TODO set EDID to NULL */
 852                 return;
 853         }
 854
 855         /* Not all connnectors have an i2c channel. */
 856         if (connector->i2c_chan)
 857                 edid = (struct edid *) drm_do_probe_ddc_edid(&connector->i2c_chan->adapter);
 858
 859         if (edid) {
 860                 drm_mode_connector_update_edid_property(drm_connector, edid);
 861                 ret = drm_add_edid_modes(drm_connector, edid);
 862                 connector->digital = edid->digital; /* cache */
 863                 kfree(edid);
 864         }
 865
 866         if (ret) /* number of modes  > 1 */
 867                 drm_mode_connector_list_update(drm_connector);
 868
 869         if (maxX && maxY)
 870                 drm_mode_validate_size(drm_connector->dev, &drm_connector->modes, maxX, maxY, 0);
 871
 872         list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
 873                 if (mode->status == MODE_OK) {
 874                         struct nouveau_hw_mode *hw_mode = nv50_kms_to_hw_mode(mode);
 875                         struct nv50_output *output = connector->to_output(connector, connector->digital);
 876
 877                         mode->status = output->validate_mode(output, hw_mode);
 878                         /* find native mode, TODO: also check if we actually found one */
 879                         if (mode->status == MODE_OK) {
 880                                 if (mode->type & DRM_MODE_TYPE_PREFERRED)
 881                                         *output->native_mode = *hw_mode;
 882                         }
 883                         kfree(hw_mode);
 884                 }
 885         }
 886
 887         /* revalidate now that we have native mode */
 888         list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
 889                 if (mode->status == MODE_OK) {
 890                         struct nouveau_hw_mode *hw_mode = nv50_kms_to_hw_mode(mode);
 891                         struct nv50_output *output = connector->to_output(connector, connector->digital);
 892
 893                         mode->status = output->validate_mode(output, hw_mode);
 894                         kfree(hw_mode);
 895                 }
 896         }
 897
 898         drm_mode_prune_invalid(drm_connector->dev, &drm_connector->modes, TRUE);
 899
 900         if (list_empty(&drm_connector->modes)) {
 901                 struct drm_display_mode *stdmode;
 902                 struct nouveau_hw_mode *hw_mode;
 903                 struct nv50_output *output;
 904
 905                 NV50_DEBUG("No valid modes on %s\n", drm_get_connector_name(drm_connector));
 906
 907                 /* Should we do this here ???
 908                  * When no valid EDID modes are available we end up
 909                  * here and bailed in the past, now we add a standard
 910                  * 640x480@60Hz mode and carry on.
 911                  */
 912                 stdmode = drm_mode_duplicate(drm_connector->dev, &std_mode[0]);
 913                 drm_mode_probed_add(drm_connector, stdmode);
 914                 drm_mode_list_concat(&drm_connector->probed_modes,
 915                                      &drm_connector->modes);
 916
 917                 /* also add it as native mode */
 918                 hw_mode = nv50_kms_to_hw_mode(mode);
 919                 output = connector->to_output(connector, connector->digital);
 920
 921                 if (hw_mode)
 922                         *output->native_mode = *hw_mode;
 923
 924                 DRM_DEBUG("Adding standard 640x480 @ 60Hz to %s\n",
 925                           drm_get_connector_name(drm_connector));
 926         }
 927
 928         drm_mode_sort(&drm_connector->modes);
 929
 930         NV50_DEBUG("Probed modes for %s\n", drm_get_connector_name(drm_connector));
 931
 932         list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
 933                 mode->vrefresh = drm_mode_vrefresh(mode);
 934
 935                 /* is this needed, as it's unused by the driver? */
 936                 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
 937                 drm_mode_debug_printmodeline(mode);
 938         }
 939 }
 940
 941 static const struct drm_connector_funcs nv50_kms_connector_funcs = {
 942         .save = NULL,
 943         .restore = NULL,
 944         .detect = nv50_kms_connector_detect,
 945         .destroy = nv50_kms_connector_destroy,
 946         .fill_modes = nv50_kms_connector_fill_modes,
 947 };
 948
 949 static int nv50_kms_connectors_init(struct drm_device *dev)
 950 {
 951         struct nv50_display *display = nv50_get_display(dev);
 952         struct nv50_connector *connector = NULL;
 953         int i;
 954
 955         list_for_each_entry(connector, &display->connectors, head) {
 956                 struct drm_connector *drm_connector = to_nv50_kms_connector(connector);
 957                 uint32_t type = DRM_MODE_CONNECTOR_Unknown;
 958
 959                 switch (connector->type) {
 960                         case CONNECTOR_VGA:
 961                                 type = DRM_MODE_CONNECTOR_VGA;
 962                                 break;
 963                         case CONNECTOR_DVI_D:
 964                                 type = DRM_MODE_CONNECTOR_DVID;
 965                                 break;
 966                         case CONNECTOR_DVI_I:
 967                                 type = DRM_MODE_CONNECTOR_DVII;
 968                                 break;
 969                         case CONNECTOR_LVDS:
 970                                 type = DRM_MODE_CONNECTOR_LVDS;
 971                                 break;
 972                         case CONNECTOR_TV:
 973                                 type = DRM_MODE_CONNECTOR_SVIDEO;
 974                                 break;
 975                         default:
 976                                 type = DRM_MODE_CONNECTOR_Unknown;
 977                                 break;
 978                 }
 979
 980                 if (type == DRM_MODE_CONNECTOR_Unknown) {
 981                         DRM_ERROR("DRM_MODE_CONNECTOR_Unknown encountered\n");
 982                         continue;
 983                 }
 984
 985                 /* It should be allowed sometimes, but let's be safe for the moment. */
 986                 drm_connector->interlace_allowed = false;
 987                 drm_connector->doublescan_allowed = false;
 988
 989                 drm_connector_init(dev, drm_connector, &nv50_kms_connector_funcs, type);
 990
 991                 /* attach encoders, possibilities are analog + digital */
 992                 for (i = 0; i < 2; i++) {
 993                         struct drm_encoder *drm_encoder = NULL;
 994                         struct nv50_output *output = connector->to_output(connector, i);
 995                         if (!output)
 996                                 continue;
 997
 998                         drm_encoder = to_nv50_kms_encoder(output);
 999                         if (!drm_encoder) {
1000                                 DRM_ERROR("No struct drm_connector to match struct nv50_output\n");
1001                                 continue;
1002                         }
1003
1004                         drm_mode_connector_attach_encoder(drm_connector, drm_encoder);
1005                 }
1006
1007                 drm_sysfs_connector_add(drm_connector);
1008         }
1009
1010         return 0;
1011 }
1012
1013 /*
1014  * Main functions
1015  */
1016
1017 int nv50_kms_init(struct drm_device *dev)
1018 {
1019         struct drm_nouveau_private *dev_priv = dev->dev_private;
1020         struct nv50_kms_priv *kms_priv = kzalloc(sizeof(struct nv50_kms_priv), GFP_KERNEL);
1021         struct nv50_display *display = NULL;
1022         int rval = 0;
1023
1024         if (!kms_priv)
1025                 return -ENOMEM;
1026
1027         dev_priv->kms_priv = kms_priv;
1028
1029         /* function pointers */
1030         /* an allocation interface that deals with the outside world, without polluting the core. */
1031         dev_priv->alloc_crtc = nv50_kms_alloc_crtc;
1032         dev_priv->alloc_output = nv50_kms_alloc_output;
1033         dev_priv->alloc_connector = nv50_kms_alloc_connector;
1034
1035         dev_priv->free_crtc = nv50_kms_free_crtc;
1036         dev_priv->free_output = nv50_kms_free_output;
1037         dev_priv->free_connector = nv50_kms_free_connector;
1038
1039         /* bios is needed for tables. */
1040         rval = nouveau_parse_bios(dev);
1041         if (rval != 0)
1042                 goto out;
1043
1044         /* init basic kernel modesetting */
1045         drm_mode_config_init(dev);
1046
1047         dev->mode_config.min_width = 0;
1048         dev->mode_config.min_height = 0;
1049
1050         dev->mode_config.funcs = (void *)&nv50_kms_mode_funcs;
1051
1052         dev->mode_config.max_width = 8192;
1053         dev->mode_config.max_height = 8192;
1054
1055         dev->mode_config.fb_base = dev_priv->fb_phys;
1056
1057         /* init kms lists */
1058         INIT_LIST_HEAD(&kms_priv->crtcs);
1059         INIT_LIST_HEAD(&kms_priv->encoders);
1060         INIT_LIST_HEAD(&kms_priv->connectors);
1061
1062         /* init the internal core, must be done first. */
1063         rval = nv50_display_create(dev);
1064         if (rval != 0)
1065                 goto out;
1066
1067         display = nv50_get_display(dev);
1068         if (!display) {
1069                 rval = -EINVAL;
1070                 goto out;
1071         }
1072
1073         /* pre-init now */
1074         rval = display->pre_init(display);
1075         if (rval != 0)
1076                 goto out;
1077
1078         /* init external layer */
1079         rval = nv50_kms_crtcs_init(dev);
1080         if (rval != 0)
1081                 goto out;
1082
1083         rval = nv50_kms_encoders_init(dev);
1084         if (rval != 0)
1085                 goto out;
1086
1087         rval = nv50_kms_connectors_init(dev);
1088         if (rval != 0)
1089                 goto out;
1090
1091         /* init now, this'll kill the textmode */
1092         rval = display->init(display);
1093         if (rval != 0)
1094                 goto out;
1095
1096         /* process cmdbuffer */
1097         display->update(display);
1098
1099         return 0;
1100
1101 out:
1102         kfree(kms_priv);
1103         dev_priv->kms_priv = NULL;
1104
1105         return rval;
1106 }
1107
1108 int nv50_kms_destroy(struct drm_device *dev)
1109 {
1110         drm_mode_config_cleanup(dev);
1111
1112         return 0;
1113 }
1114