nouveau_connector.c 24.5 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
/*
 * Copyright (C) 2008 Maarten Maathuis.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

27 28
#include <acpi/button.h>

29 30 31
#include "drmP.h"
#include "drm_edid.h"
#include "drm_crtc_helper.h"
32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78
#include "nouveau_reg.h"
#include "nouveau_drv.h"
#include "nouveau_encoder.h"
#include "nouveau_crtc.h"
#include "nouveau_connector.h"
#include "nouveau_hw.h"

static struct nouveau_encoder *
find_encoder_by_type(struct drm_connector *connector, int type)
{
	struct drm_device *dev = connector->dev;
	struct nouveau_encoder *nv_encoder;
	struct drm_mode_object *obj;
	int i, id;

	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		id = connector->encoder_ids[i];
		if (!id)
			break;

		obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
		if (!obj)
			continue;
		nv_encoder = nouveau_encoder(obj_to_encoder(obj));

		if (type == OUTPUT_ANY || nv_encoder->dcb->type == type)
			return nv_encoder;
	}

	return NULL;
}

struct nouveau_connector *
nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
{
	struct drm_device *dev = to_drm_encoder(encoder)->dev;
	struct drm_connector *drm_connector;

	list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
		if (drm_connector->encoder == to_drm_encoder(encoder))
			return nouveau_connector(drm_connector);
	}

	return NULL;
}

79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94
/*TODO: This could use improvement, and learn to handle the fixed
 *      BIOS tables etc.  It's fine currently, for its only user.
 */
int
nouveau_connector_bpp(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);

	if (nv_connector->edid && nv_connector->edid->revision >= 4) {
		u8 bpc = ((nv_connector->edid->input & 0x70) >> 3) + 4;
		if (bpc > 4)
			return bpc;
	}

	return 18;
}
95 96 97 98

static void
nouveau_connector_destroy(struct drm_connector *drm_connector)
{
99 100
	struct nouveau_connector *nv_connector =
		nouveau_connector(drm_connector);
101
	struct drm_device *dev;
102

103
	if (!nv_connector)
104 105
		return;

106 107 108
	dev = nv_connector->base.dev;
	NV_DEBUG_KMS(dev, "\n");

109
	kfree(nv_connector->edid);
110 111 112 113 114 115 116 117 118 119
	drm_sysfs_connector_remove(drm_connector);
	drm_connector_cleanup(drm_connector);
	kfree(drm_connector);
}

static struct nouveau_i2c_chan *
nouveau_connector_ddc_detect(struct drm_connector *connector,
			     struct nouveau_encoder **pnv_encoder)
{
	struct drm_device *dev = connector->dev;
120
	int i;
121 122

	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
123
		struct nouveau_i2c_chan *i2c = NULL;
124 125 126 127 128 129 130 131 132 133 134 135
		struct nouveau_encoder *nv_encoder;
		struct drm_mode_object *obj;
		int id;

		id = connector->encoder_ids[i];
		if (!id)
			break;

		obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
		if (!obj)
			continue;
		nv_encoder = nouveau_encoder(obj_to_encoder(obj));
136 137 138

		if (nv_encoder->dcb->i2c_index < 0xf)
			i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
139

140
		if (i2c && nouveau_probe_i2c_addr(i2c, 0x50)) {
141 142 143 144 145 146 147 148
			*pnv_encoder = nv_encoder;
			return i2c;
		}
	}

	return NULL;
}

149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178
static struct nouveau_encoder *
nouveau_connector_of_detect(struct drm_connector *connector)
{
#ifdef __powerpc__
	struct drm_device *dev = connector->dev;
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder;
	struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);

	if (!dn ||
	    !((nv_encoder = find_encoder_by_type(connector, OUTPUT_TMDS)) ||
	      (nv_encoder = find_encoder_by_type(connector, OUTPUT_ANALOG))))
		return NULL;

	for_each_child_of_node(dn, cn) {
		const char *name = of_get_property(cn, "name", NULL);
		const void *edid = of_get_property(cn, "EDID", NULL);
		int idx = name ? name[strlen(name) - 1] - 'A' : 0;

		if (nv_encoder->dcb->i2c_index == idx && edid) {
			nv_connector->edid =
				kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
			of_node_put(cn);
			return nv_encoder;
		}
	}
#endif
	return NULL;
}

179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206
static void
nouveau_connector_set_encoder(struct drm_connector *connector,
			      struct nouveau_encoder *nv_encoder)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
	struct drm_device *dev = connector->dev;

	if (nv_connector->detected_encoder == nv_encoder)
		return;
	nv_connector->detected_encoder = nv_encoder;

	if (nv_encoder->dcb->type == OUTPUT_LVDS ||
	    nv_encoder->dcb->type == OUTPUT_TMDS) {
		connector->doublescan_allowed = false;
		connector->interlace_allowed = false;
	} else {
		connector->doublescan_allowed = true;
		if (dev_priv->card_type == NV_20 ||
		   (dev_priv->card_type == NV_10 &&
		    (dev->pci_device & 0x0ff0) != 0x0100 &&
		    (dev->pci_device & 0x0ff0) != 0x0150))
			/* HW is broken */
			connector->interlace_allowed = false;
		else
			connector->interlace_allowed = true;
	}

207
	if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
208 209 210 211 212 213 214 215 216
		drm_connector_property_set_value(connector,
			dev->mode_config.dvi_i_subconnector_property,
			nv_encoder->dcb->type == OUTPUT_TMDS ?
			DRM_MODE_SUBCONNECTOR_DVID :
			DRM_MODE_SUBCONNECTOR_DVIA);
	}
}

static enum drm_connector_status
217
nouveau_connector_detect(struct drm_connector *connector, bool force)
218 219 220 221 222
{
	struct drm_device *dev = connector->dev;
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = NULL;
	struct nouveau_i2c_chan *i2c;
223
	int type;
224

225 226 227 228 229 230
	/* Cleanup the previous EDID block. */
	if (nv_connector->edid) {
		drm_mode_connector_update_edid_property(connector, NULL);
		kfree(nv_connector->edid);
		nv_connector->edid = NULL;
	}
231

232 233 234 235 236 237 238 239
	i2c = nouveau_connector_ddc_detect(connector, &nv_encoder);
	if (i2c) {
		nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
		drm_mode_connector_update_edid_property(connector,
							nv_connector->edid);
		if (!nv_connector->edid) {
			NV_ERROR(dev, "DDC responded, but no EDID for %s\n",
				 drm_get_connector_name(connector));
240
			goto detect_analog;
241 242 243 244 245 246 247 248 249 250 251 252 253 254
		}

		if (nv_encoder->dcb->type == OUTPUT_DP &&
		    !nouveau_dp_detect(to_drm_encoder(nv_encoder))) {
			NV_ERROR(dev, "Detected %s, but failed init\n",
				 drm_get_connector_name(connector));
			return connector_status_disconnected;
		}

		/* Override encoder type for DVI-I based on whether EDID
		 * says the display is digital or analog, both use the
		 * same i2c channel so the value returned from ddc_detect
		 * isn't necessarily correct.
		 */
255
		if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273
			if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
				type = OUTPUT_TMDS;
			else
				type = OUTPUT_ANALOG;

			nv_encoder = find_encoder_by_type(connector, type);
			if (!nv_encoder) {
				NV_ERROR(dev, "Detected %d encoder on %s, "
					      "but no object!\n", type,
					 drm_get_connector_name(connector));
				return connector_status_disconnected;
			}
		}

		nouveau_connector_set_encoder(connector, nv_encoder);
		return connector_status_connected;
	}

274 275 276 277 278 279
	nv_encoder = nouveau_connector_of_detect(connector);
	if (nv_encoder) {
		nouveau_connector_set_encoder(connector, nv_encoder);
		return connector_status_connected;
	}

280
detect_analog:
281
	nv_encoder = find_encoder_by_type(connector, OUTPUT_ANALOG);
282
	if (!nv_encoder && !nouveau_tv_disable)
283
		nv_encoder = find_encoder_by_type(connector, OUTPUT_TV);
284
	if (nv_encoder && force) {
285 286 287 288 289 290 291 292 293 294 295 296 297 298 299
		struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
		struct drm_encoder_helper_funcs *helper =
						encoder->helper_private;

		if (helper->detect(encoder, connector) ==
						connector_status_connected) {
			nouveau_connector_set_encoder(connector, nv_encoder);
			return connector_status_connected;
		}

	}

	return connector_status_disconnected;
}

300
static enum drm_connector_status
301
nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319
{
	struct drm_device *dev = connector->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = NULL;
	enum drm_connector_status status = connector_status_disconnected;

	/* Cleanup the previous EDID block. */
	if (nv_connector->edid) {
		drm_mode_connector_update_edid_property(connector, NULL);
		kfree(nv_connector->edid);
		nv_connector->edid = NULL;
	}

	nv_encoder = find_encoder_by_type(connector, OUTPUT_LVDS);
	if (!nv_encoder)
		return connector_status_disconnected;

320
	/* Try retrieving EDID via DDC */
321
	if (!dev_priv->vbios.fp_no_ddc) {
322
		status = nouveau_connector_detect(connector, force);
323 324 325 326
		if (status == connector_status_connected)
			goto out;
	}

327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342
	/* On some laptops (Sony, i'm looking at you) there appears to
	 * be no direct way of accessing the panel's EDID.  The only
	 * option available to us appears to be to ask ACPI for help..
	 *
	 * It's important this check's before trying straps, one of the
	 * said manufacturer's laptops are configured in such a way
	 * the nouveau decides an entry in the VBIOS FP mode table is
	 * valid - it's not (rh#613284)
	 */
	if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
		if (!nouveau_acpi_edid(dev, connector)) {
			status = connector_status_connected;
			goto out;
		}
	}

343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374
	/* If no EDID found above, and the VBIOS indicates a hardcoded
	 * modeline is avalilable for the panel, set it as the panel's
	 * native mode and exit.
	 */
	if (nouveau_bios_fp_mode(dev, NULL) && (dev_priv->vbios.fp_no_ddc ||
	    nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
		status = connector_status_connected;
		goto out;
	}

	/* Still nothing, some VBIOS images have a hardcoded EDID block
	 * stored for the panel stored in them.
	 */
	if (!dev_priv->vbios.fp_no_ddc) {
		struct edid *edid =
			(struct edid *)nouveau_bios_embedded_edid(dev);
		if (edid) {
			nv_connector->edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
			*(nv_connector->edid) = *edid;
			status = connector_status_connected;
		}
	}

out:
#if defined(CONFIG_ACPI_BUTTON) || \
	(defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
	if (status == connector_status_connected &&
	    !nouveau_ignorelid && !acpi_lid_open())
		status = connector_status_unknown;
#endif

	drm_mode_connector_update_edid_property(connector, nv_connector->edid);
A
Albert Damen 已提交
375
	nouveau_connector_set_encoder(connector, nv_encoder);
376 377 378
	return status;
}

379 380 381
static void
nouveau_connector_force(struct drm_connector *connector)
{
382
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
383 384 385
	struct nouveau_encoder *nv_encoder;
	int type;

386
	if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
387 388 389 390 391 392 393 394 395
		if (connector->force == DRM_FORCE_ON_DIGITAL)
			type = OUTPUT_TMDS;
		else
			type = OUTPUT_ANALOG;
	} else
		type = OUTPUT_ANY;

	nv_encoder = find_encoder_by_type(connector, type);
	if (!nv_encoder) {
396
		NV_ERROR(connector->dev, "can't find encoder to force %s on!\n",
397 398 399 400 401 402 403 404 405 406 407 408 409 410
			 drm_get_connector_name(connector));
		connector->status = connector_status_disconnected;
		return;
	}

	nouveau_connector_set_encoder(connector, nv_encoder);
}

static int
nouveau_connector_set_property(struct drm_connector *connector,
			       struct drm_property *property, uint64_t value)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
411
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430
	struct drm_device *dev = connector->dev;
	int ret;

	/* Scaling mode */
	if (property == dev->mode_config.scaling_mode_property) {
		struct nouveau_crtc *nv_crtc = NULL;
		bool modeset = false;

		switch (value) {
		case DRM_MODE_SCALE_NONE:
		case DRM_MODE_SCALE_FULLSCREEN:
		case DRM_MODE_SCALE_CENTER:
		case DRM_MODE_SCALE_ASPECT:
			break;
		default:
			return -EINVAL;
		}

		/* LVDS always needs gpu scaling */
431
		if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS &&
432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483
		    value == DRM_MODE_SCALE_NONE)
			return -EINVAL;

		/* Changing between GPU and panel scaling requires a full
		 * modeset
		 */
		if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) ||
		    (value == DRM_MODE_SCALE_NONE))
			modeset = true;
		nv_connector->scaling_mode = value;

		if (connector->encoder && connector->encoder->crtc)
			nv_crtc = nouveau_crtc(connector->encoder->crtc);
		if (!nv_crtc)
			return 0;

		if (modeset || !nv_crtc->set_scale) {
			ret = drm_crtc_helper_set_mode(&nv_crtc->base,
							&nv_crtc->base.mode,
							nv_crtc->base.x,
							nv_crtc->base.y, NULL);
			if (!ret)
				return -EINVAL;
		} else {
			ret = nv_crtc->set_scale(nv_crtc, value, true);
			if (ret)
				return ret;
		}

		return 0;
	}

	/* Dithering */
	if (property == dev->mode_config.dithering_mode_property) {
		struct nouveau_crtc *nv_crtc = NULL;

		if (value == DRM_MODE_DITHERING_ON)
			nv_connector->use_dithering = true;
		else
			nv_connector->use_dithering = false;

		if (connector->encoder && connector->encoder->crtc)
			nv_crtc = nouveau_crtc(connector->encoder->crtc);

		if (!nv_crtc || !nv_crtc->set_dither)
			return 0;

		return nv_crtc->set_dither(nv_crtc, nv_connector->use_dithering,
					   true);
	}

	if (nv_encoder && nv_encoder->dcb->type == OUTPUT_TV)
484 485
		return get_slave_funcs(encoder)->set_property(
			encoder, connector, property, value);
486 487 488 489 490

	return -EINVAL;
}

static struct drm_display_mode *
491
nouveau_connector_native_mode(struct drm_connector *connector)
492
{
493 494 495
	struct drm_connector_helper_funcs *helper = connector->helper_private;
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_device *dev = connector->dev;
496 497 498
	struct drm_display_mode *mode, *largest = NULL;
	int high_w = 0, high_h = 0, high_v = 0;

499
	list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
500 501
		if (helper->mode_valid(connector, mode) != MODE_OK ||
		    (mode->flags & DRM_MODE_FLAG_INTERLACE))
502 503 504
			continue;

		/* Use preferred mode if there is one.. */
505
		if (mode->type & DRM_MODE_TYPE_PREFERRED) {
506
			NV_DEBUG_KMS(dev, "native mode from preferred\n");
507 508 509
			return drm_mode_duplicate(dev, mode);
		}

510 511 512
		/* Otherwise, take the resolution with the largest width, then
		 * height, then vertical refresh
		 */
513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528
		if (mode->hdisplay < high_w)
			continue;

		if (mode->hdisplay == high_w && mode->vdisplay < high_h)
			continue;

		if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
		    mode->vrefresh < high_v)
			continue;

		high_w = mode->hdisplay;
		high_h = mode->vdisplay;
		high_v = mode->vrefresh;
		largest = mode;
	}

529
	NV_DEBUG_KMS(dev, "native mode from largest: %dx%d@%d\n",
530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593
		      high_w, high_h, high_v);
	return largest ? drm_mode_duplicate(dev, largest) : NULL;
}

struct moderec {
	int hdisplay;
	int vdisplay;
};

static struct moderec scaler_modes[] = {
	{ 1920, 1200 },
	{ 1920, 1080 },
	{ 1680, 1050 },
	{ 1600, 1200 },
	{ 1400, 1050 },
	{ 1280, 1024 },
	{ 1280, 960 },
	{ 1152, 864 },
	{ 1024, 768 },
	{ 800, 600 },
	{ 720, 400 },
	{ 640, 480 },
	{ 640, 400 },
	{ 640, 350 },
	{}
};

static int
nouveau_connector_scaler_modes_add(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_display_mode *native = nv_connector->native_mode, *m;
	struct drm_device *dev = connector->dev;
	struct moderec *mode = &scaler_modes[0];
	int modes = 0;

	if (!native)
		return 0;

	while (mode->hdisplay) {
		if (mode->hdisplay <= native->hdisplay &&
		    mode->vdisplay <= native->vdisplay) {
			m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
					 drm_mode_vrefresh(native), false,
					 false, false);
			if (!m)
				continue;

			m->type |= DRM_MODE_TYPE_DRIVER;

			drm_mode_probed_add(connector, m);
			modes++;
		}

		mode++;
	}

	return modes;
}

static int
nouveau_connector_get_modes(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
594
	struct drm_nouveau_private *dev_priv = dev->dev_private;
595 596
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
597
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
598 599
	int ret = 0;

600
	/* destroy the native mode, the attached monitor could have changed.
601
	 */
602
	if (nv_connector->native_mode) {
603 604 605 606 607 608
		drm_mode_destroy(dev, nv_connector->native_mode);
		nv_connector->native_mode = NULL;
	}

	if (nv_connector->edid)
		ret = drm_add_edid_modes(connector, nv_connector->edid);
609 610 611
	else
	if (nv_encoder->dcb->type == OUTPUT_LVDS &&
	    (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
612
	     dev_priv->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
613 614 615 616
		struct drm_display_mode mode;

		nouveau_bios_fp_mode(dev, &mode);
		nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
617
	}
618 619 620 621 622 623 624

	/* Find the native mode if this is a digital panel, if we didn't
	 * find any modes through DDC previously add the native mode to
	 * the list of modes.
	 */
	if (!nv_connector->native_mode)
		nv_connector->native_mode =
625
			nouveau_connector_native_mode(connector);
626 627 628 629 630 631 632 633 634
	if (ret == 0 && nv_connector->native_mode) {
		struct drm_display_mode *mode;

		mode = drm_mode_duplicate(dev, nv_connector->native_mode);
		drm_mode_probed_add(connector, mode);
		ret = 1;
	}

	if (nv_encoder->dcb->type == OUTPUT_TV)
635
		ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
636

637 638
	if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS ||
	    nv_connector->dcb->type == DCB_CONNECTOR_eDP)
639 640 641 642 643
		ret += nouveau_connector_scaler_modes_add(connector);

	return ret;
}

644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661
static unsigned
get_tmds_link_bandwidth(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
	struct dcb_entry *dcb = nv_connector->detected_encoder->dcb;

	if (dcb->location != DCB_LOC_ON_CHIP ||
	    dev_priv->chipset >= 0x46)
		return 165000;
	else if (dev_priv->chipset >= 0x40)
		return 155000;
	else if (dev_priv->chipset >= 0x18)
		return 135000;
	else
		return 112000;
}

662 663 664 665 666 667
static int
nouveau_connector_mode_valid(struct drm_connector *connector,
			     struct drm_display_mode *mode)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
668
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
669 670 671 672 673
	unsigned min_clock = 25000, max_clock = min_clock;
	unsigned clock = mode->clock;

	switch (nv_encoder->dcb->type) {
	case OUTPUT_LVDS:
674 675 676
		if (nv_connector->native_mode &&
		    (mode->hdisplay > nv_connector->native_mode->hdisplay ||
		     mode->vdisplay > nv_connector->native_mode->vdisplay))
677 678 679 680 681 682
			return MODE_PANEL;

		min_clock = 0;
		max_clock = 400000;
		break;
	case OUTPUT_TMDS:
683 684 685
		max_clock = get_tmds_link_bandwidth(connector);
		if (nouveau_duallink && nv_encoder->dcb->duallink_possible)
			max_clock *= 2;
686 687 688 689 690 691 692
		break;
	case OUTPUT_ANALOG:
		max_clock = nv_encoder->dcb->crtconf.maxfreq;
		if (!max_clock)
			max_clock = 350000;
		break;
	case OUTPUT_TV:
693
		return get_slave_funcs(encoder)->mode_valid(encoder, mode);
694 695 696 697 698 699
	case OUTPUT_DP:
		if (nv_encoder->dp.link_bw == DP_LINK_BW_2_7)
			max_clock = nv_encoder->dp.link_nr * 270000;
		else
			max_clock = nv_encoder->dp.link_nr * 162000;

700
		clock = clock * nouveau_connector_bpp(connector) / 8;
701
		break;
702 703 704
	default:
		BUG_ON(1);
		return MODE_BAD;
705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745
	}

	if (clock < min_clock)
		return MODE_CLOCK_LOW;

	if (clock > max_clock)
		return MODE_CLOCK_HIGH;

	return MODE_OK;
}

static struct drm_encoder *
nouveau_connector_best_encoder(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);

	if (nv_connector->detected_encoder)
		return to_drm_encoder(nv_connector->detected_encoder);

	return NULL;
}

static const struct drm_connector_helper_funcs
nouveau_connector_helper_funcs = {
	.get_modes = nouveau_connector_get_modes,
	.mode_valid = nouveau_connector_mode_valid,
	.best_encoder = nouveau_connector_best_encoder,
};

static const struct drm_connector_funcs
nouveau_connector_funcs = {
	.dpms = drm_helper_connector_dpms,
	.save = NULL,
	.restore = NULL,
	.detect = nouveau_connector_detect,
	.destroy = nouveau_connector_destroy,
	.fill_modes = drm_helper_probe_single_connector_modes,
	.set_property = nouveau_connector_set_property,
	.force = nouveau_connector_force
};

746 747 748 749 750 751 752 753 754 755 756
static const struct drm_connector_funcs
nouveau_connector_funcs_lvds = {
	.dpms = drm_helper_connector_dpms,
	.save = NULL,
	.restore = NULL,
	.detect = nouveau_connector_detect_lvds,
	.destroy = nouveau_connector_destroy,
	.fill_modes = drm_helper_probe_single_connector_modes,
	.set_property = nouveau_connector_set_property,
	.force = nouveau_connector_force
};
757

758 759
struct drm_connector *
nouveau_connector_create(struct drm_device *dev, int index)
760
{
761
	const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
762 763
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct nouveau_connector *nv_connector = NULL;
764
	struct dcb_connector_table_entry *dcb = NULL;
765
	struct drm_connector *connector;
766
	int type, ret = 0;
767

768
	NV_DEBUG_KMS(dev, "\n");
769

770 771 772 773 774 775 776
	if (index >= dev_priv->vbios.dcb.connector.entries)
		return ERR_PTR(-EINVAL);

	dcb = &dev_priv->vbios.dcb.connector.entry[index];
	if (dcb->drm)
		return dcb->drm;

777 778 779
	switch (dcb->type) {
	case DCB_CONNECTOR_VGA:
		type = DRM_MODE_CONNECTOR_VGA;
780
		break;
781 782 783 784
	case DCB_CONNECTOR_TV_0:
	case DCB_CONNECTOR_TV_1:
	case DCB_CONNECTOR_TV_3:
		type = DRM_MODE_CONNECTOR_TV;
785
		break;
786 787
	case DCB_CONNECTOR_DVI_I:
		type = DRM_MODE_CONNECTOR_DVII;
788
		break;
789 790
	case DCB_CONNECTOR_DVI_D:
		type = DRM_MODE_CONNECTOR_DVID;
791
		break;
792 793 794 795
	case DCB_CONNECTOR_HDMI_0:
	case DCB_CONNECTOR_HDMI_1:
		type = DRM_MODE_CONNECTOR_HDMIA;
		break;
796 797
	case DCB_CONNECTOR_LVDS:
		type = DRM_MODE_CONNECTOR_LVDS;
798
		funcs = &nouveau_connector_funcs_lvds;
799
		break;
800 801
	case DCB_CONNECTOR_DP:
		type = DRM_MODE_CONNECTOR_DisplayPort;
802
		break;
803 804 805
	case DCB_CONNECTOR_eDP:
		type = DRM_MODE_CONNECTOR_eDP;
		break;
806
	default:
807
		NV_ERROR(dev, "unknown connector type: 0x%02x!!\n", dcb->type);
808
		return ERR_PTR(-EINVAL);
809 810
	}

811 812
	nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
	if (!nv_connector)
813
		return ERR_PTR(-ENOMEM);
814 815 816
	nv_connector->dcb = dcb;
	connector = &nv_connector->base;

817 818 819 820
	/* defaults, will get overridden in detect() */
	connector->interlace_allowed = false;
	connector->doublescan_allowed = false;

821
	drm_connector_init(dev, connector, funcs, type);
822 823
	drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);

824 825 826 827 828 829 830 831 832 833 834 835
	/* Check if we need dithering enabled */
	if (dcb->type == DCB_CONNECTOR_LVDS) {
		bool dummy, is_24bit = false;

		ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &is_24bit);
		if (ret) {
			NV_ERROR(dev, "Error parsing LVDS table, disabling "
				 "LVDS\n");
			goto fail;
		}

		nv_connector->use_dithering = !is_24bit;
836 837
	}

838
	/* Init DVI-I specific properties */
839
	if (dcb->type == DCB_CONNECTOR_DVI_I) {
840 841 842 843 844
		drm_mode_create_dvi_i_properties(dev);
		drm_connector_attach_property(connector, dev->mode_config.dvi_i_subconnector_property, 0);
		drm_connector_attach_property(connector, dev->mode_config.dvi_i_select_subconnector_property, 0);
	}

845 846 847
	switch (dcb->type) {
	case DCB_CONNECTOR_VGA:
		if (dev_priv->card_type >= NV_50) {
848 849 850 851
			drm_connector_attach_property(connector,
					dev->mode_config.scaling_mode_property,
					nv_connector->scaling_mode);
		}
852
		connector->polled = DRM_CONNECTOR_POLL_CONNECT;
853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868
		/* fall-through */
	case DCB_CONNECTOR_TV_0:
	case DCB_CONNECTOR_TV_1:
	case DCB_CONNECTOR_TV_3:
		nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
		break;
	default:
		nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;

		drm_connector_attach_property(connector,
				dev->mode_config.scaling_mode_property,
				nv_connector->scaling_mode);
		drm_connector_attach_property(connector,
				dev->mode_config.dithering_mode_property,
				nv_connector->use_dithering ?
				DRM_MODE_DITHERING_ON : DRM_MODE_DITHERING_OFF);
869

870 871 872 873 874 875
		if (dcb->type != DCB_CONNECTOR_LVDS) {
			if (dev_priv->card_type >= NV_50)
				connector->polled = DRM_CONNECTOR_POLL_HPD;
			else
				connector->polled = DRM_CONNECTOR_POLL_CONNECT;
		}
876
		break;
877 878 879
	}

	drm_sysfs_connector_add(connector);
880 881
	dcb->drm = connector;
	return dcb->drm;
882 883 884 885

fail:
	drm_connector_cleanup(connector);
	kfree(connector);
886
	return ERR_PTR(ret);
887

888
}