nouveau_connector.c 23.2 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
79
80
81
82
#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;
}


static void
nouveau_connector_destroy(struct drm_connector *drm_connector)
{
83
84
	struct nouveau_connector *nv_connector =
		nouveau_connector(drm_connector);
85
	struct drm_device *dev;
86

87
	if (!nv_connector)
88
89
		return;

90
91
92
	dev = nv_connector->base.dev;
	NV_DEBUG_KMS(dev, "\n");

93
	kfree(nv_connector->edid);
94
95
96
97
98
99
100
101
102
103
	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;
104
	int i;
105
106

	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
107
		struct nouveau_i2c_chan *i2c;
108
109
110
111
112
113
114
115
116
117
118
119
		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));
120
		i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
121

122
		if (i2c && nouveau_probe_i2c_addr(i2c, 0x50)) {
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
			*pnv_encoder = nv_encoder;
			return i2c;
		}
	}

	return NULL;
}

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;
	}

159
	if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
		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
nouveau_connector_detect(struct drm_connector *connector)
{
	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;
175
	int type;
176

177
178
179
180
181
182
	/* 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;
	}
183

184
185
186
187
188
189
190
191
	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));
192
			goto detect_analog;
193
194
195
196
197
198
199
200
201
202
203
204
205
206
		}

		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.
		 */
207
		if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
			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;
	}

226
detect_analog:
227
	nv_encoder = find_encoder_by_type(connector, OUTPUT_ANALOG);
228
	if (!nv_encoder && !nouveau_tv_disable)
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
		nv_encoder = find_encoder_by_type(connector, OUTPUT_TV);
	if (nv_encoder) {
		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;
}

246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
static enum drm_connector_status
nouveau_connector_detect_lvds(struct drm_connector *connector)
{
	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;

266
	/* Try retrieving EDID via DDC */
267
268
269
270
271
272
	if (!dev_priv->vbios.fp_no_ddc) {
		status = nouveau_connector_detect(connector);
		if (status == connector_status_connected)
			goto out;
	}

273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
	/* 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;
		}
	}

289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
	/* 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);
321
	nouveau_connector_set_encoder(connector, nv_encoder);
322
323
324
	return status;
}

325
326
327
static void
nouveau_connector_force(struct drm_connector *connector)
{
328
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
329
330
331
	struct nouveau_encoder *nv_encoder;
	int type;

332
	if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
333
334
335
336
337
338
339
340
341
		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) {
342
		NV_ERROR(connector->dev, "can't find encoder to force %s on!\n",
343
344
345
346
347
348
349
350
351
352
353
354
355
356
			 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;
357
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
	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 */
377
		if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS &&
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
		    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)
430
431
		return get_slave_funcs(encoder)->set_property(
			encoder, connector, property, value);
432
433
434
435
436

	return -EINVAL;
}

static struct drm_display_mode *
437
nouveau_connector_native_mode(struct drm_connector *connector)
438
{
439
440
441
	struct drm_connector_helper_funcs *helper = connector->helper_private;
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_device *dev = connector->dev;
442
443
444
	struct drm_display_mode *mode, *largest = NULL;
	int high_w = 0, high_h = 0, high_v = 0;

445
	list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
446
447
		if (helper->mode_valid(connector, mode) != MODE_OK ||
		    (mode->flags & DRM_MODE_FLAG_INTERLACE))
448
449
450
			continue;

		/* Use preferred mode if there is one.. */
451
		if (mode->type & DRM_MODE_TYPE_PREFERRED) {
452
			NV_DEBUG_KMS(dev, "native mode from preferred\n");
453
454
455
			return drm_mode_duplicate(dev, mode);
		}

456
457
458
		/* Otherwise, take the resolution with the largest width, then
		 * height, then vertical refresh
		 */
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
		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;
	}

475
	NV_DEBUG_KMS(dev, "native mode from largest: %dx%d@%d\n",
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
		      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;
540
	struct drm_nouveau_private *dev_priv = dev->dev_private;
541
542
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
543
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
544
545
	int ret = 0;

546
	/* destroy the native mode, the attached monitor could have changed.
547
	 */
548
	if (nv_connector->native_mode) {
549
550
551
552
553
554
		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);
555
556
557
	else
	if (nv_encoder->dcb->type == OUTPUT_LVDS &&
	    (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
558
559
560
	     dev_priv->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
		nv_connector->native_mode = drm_mode_create(dev);
		nouveau_bios_fp_mode(dev, nv_connector->native_mode);
561
	}
562
563
564
565
566
567
568

	/* 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 =
569
			nouveau_connector_native_mode(connector);
570
571
572
573
574
575
576
577
578
	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)
579
		ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
580

581
582
	if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS ||
	    nv_connector->dcb->type == DCB_CONNECTOR_eDP)
583
584
585
586
587
588
589
590
591
592
593
594
		ret += nouveau_connector_scaler_modes_add(connector);

	return ret;
}

static int
nouveau_connector_mode_valid(struct drm_connector *connector,
			     struct drm_display_mode *mode)
{
	struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
595
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
596
597
598
599
600
	unsigned min_clock = 25000, max_clock = min_clock;
	unsigned clock = mode->clock;

	switch (nv_encoder->dcb->type) {
	case OUTPUT_LVDS:
601
602
603
		if (nv_connector->native_mode &&
		    (mode->hdisplay > nv_connector->native_mode->hdisplay ||
		     mode->vdisplay > nv_connector->native_mode->vdisplay))
604
605
606
607
608
609
610
			return MODE_PANEL;

		min_clock = 0;
		max_clock = 400000;
		break;
	case OUTPUT_TMDS:
		if ((dev_priv->card_type >= NV_50 && !nouveau_duallink) ||
611
		    !nv_encoder->dcb->duallink_possible)
612
613
614
615
616
617
618
619
620
621
			max_clock = 165000;
		else
			max_clock = 330000;
		break;
	case OUTPUT_ANALOG:
		max_clock = nv_encoder->dcb->crtconf.maxfreq;
		if (!max_clock)
			max_clock = 350000;
		break;
	case OUTPUT_TV:
622
		return get_slave_funcs(encoder)->mode_valid(encoder, mode);
623
624
625
626
627
628
629
630
	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;

		clock *= 3;
		break;
631
632
633
	default:
		BUG_ON(1);
		return MODE_BAD;
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
	}

	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;
}

656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
void
nouveau_connector_set_polling(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct drm_crtc *crtc;
	bool spare_crtc = false;

	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
		spare_crtc |= !crtc->enabled;

	connector->polled = 0;

	switch (connector->connector_type) {
	case DRM_MODE_CONNECTOR_VGA:
	case DRM_MODE_CONNECTOR_TV:
		if (dev_priv->card_type >= NV_50 ||
		    (nv_gf4_disp_arch(dev) && spare_crtc))
			connector->polled = DRM_CONNECTOR_POLL_CONNECT;
		break;

	case DRM_MODE_CONNECTOR_DVII:
	case DRM_MODE_CONNECTOR_DVID:
	case DRM_MODE_CONNECTOR_HDMIA:
	case DRM_MODE_CONNECTOR_DisplayPort:
	case DRM_MODE_CONNECTOR_eDP:
		if (dev_priv->card_type >= NV_50)
			connector->polled = DRM_CONNECTOR_POLL_HPD;
		else if (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
			 spare_crtc)
			connector->polled = DRM_CONNECTOR_POLL_CONNECT;
		break;

	default:
		break;
	}
}

694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
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
};

713
714
715
716
717
718
719
720
721
722
723
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
};
724

725
726
struct drm_connector *
nouveau_connector_create(struct drm_device *dev, int index)
727
{
728
	const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
729
730
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct nouveau_connector *nv_connector = NULL;
731
	struct dcb_connector_table_entry *dcb = NULL;
732
	struct drm_connector *connector;
733
	int type, ret = 0;
734

735
	NV_DEBUG_KMS(dev, "\n");
736

737
738
739
740
741
742
743
	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;

744
745
746
	switch (dcb->type) {
	case DCB_CONNECTOR_VGA:
		type = DRM_MODE_CONNECTOR_VGA;
747
		break;
748
749
750
751
	case DCB_CONNECTOR_TV_0:
	case DCB_CONNECTOR_TV_1:
	case DCB_CONNECTOR_TV_3:
		type = DRM_MODE_CONNECTOR_TV;
752
		break;
753
754
	case DCB_CONNECTOR_DVI_I:
		type = DRM_MODE_CONNECTOR_DVII;
755
		break;
756
757
	case DCB_CONNECTOR_DVI_D:
		type = DRM_MODE_CONNECTOR_DVID;
758
		break;
759
760
761
762
	case DCB_CONNECTOR_HDMI_0:
	case DCB_CONNECTOR_HDMI_1:
		type = DRM_MODE_CONNECTOR_HDMIA;
		break;
763
764
	case DCB_CONNECTOR_LVDS:
		type = DRM_MODE_CONNECTOR_LVDS;
765
		funcs = &nouveau_connector_funcs_lvds;
766
		break;
767
768
	case DCB_CONNECTOR_DP:
		type = DRM_MODE_CONNECTOR_DisplayPort;
769
		break;
770
771
772
	case DCB_CONNECTOR_eDP:
		type = DRM_MODE_CONNECTOR_eDP;
		break;
773
	default:
774
		NV_ERROR(dev, "unknown connector type: 0x%02x!!\n", dcb->type);
775
		return ERR_PTR(-EINVAL);
776
777
	}

778
779
	nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
	if (!nv_connector)
780
		return ERR_PTR(-ENOMEM);
781
782
783
	nv_connector->dcb = dcb;
	connector = &nv_connector->base;

784
785
786
787
	/* defaults, will get overridden in detect() */
	connector->interlace_allowed = false;
	connector->doublescan_allowed = false;

788
	drm_connector_init(dev, connector, funcs, type);
789
790
	drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);

791
792
793
794
795
796
797
798
799
800
801
802
	/* 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;
803
804
	}

805
	/* Init DVI-I specific properties */
806
	if (dcb->type == DCB_CONNECTOR_DVI_I) {
807
808
809
810
811
		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);
	}

812
813
814
	switch (dcb->type) {
	case DCB_CONNECTOR_VGA:
		if (dev_priv->card_type >= NV_50) {
815
816
817
818
			drm_connector_attach_property(connector,
					dev->mode_config.scaling_mode_property,
					nv_connector->scaling_mode);
		}
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
		/* 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);
		break;
836
837
	}

838
839
	nouveau_connector_set_polling(connector);

840
	drm_sysfs_connector_add(connector);
841
842
	dcb->drm = connector;
	return dcb->drm;
843
844
845
846

fail:
	drm_connector_cleanup(connector);
	kfree(connector);
847
	return ERR_PTR(ret);
848

849
}