aboutsummaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/radeon/radeon_connectors.c
blob: af1d551f1a8f6a877197409a3e6482521f4c2def (plain)
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
27
28
29
30
31
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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
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
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
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
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
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
375
376
377
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
430
431
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
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
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
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
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
694
695
696
697
698
699
700
701
702
703
704
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
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
/*
 * Copyright 2007-8 Advanced Micro Devices, Inc.
 * Copyright 2008 Red Hat Inc.
 *
 * 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 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 HOLDER(S) OR AUTHOR(S) 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.
 *
 * Authors: Dave Airlie
 *          Alex Deucher
 */
#include "drmP.h"
#include "drm_edid.h"
#include "drm_crtc_helper.h"
#include "radeon_drm.h"
#include "radeon.h"
#include "atom.h"

extern void
radeon_combios_connected_scratch_regs(struct drm_connector *connector,
				      struct drm_encoder *encoder,
				      bool connected);
extern void
radeon_atombios_connected_scratch_regs(struct drm_connector *connector,
				       struct drm_encoder *encoder,
				       bool connected);

static void radeon_property_change_mode(struct drm_encoder *encoder)
{
	struct drm_crtc *crtc = encoder->crtc;

	if (crtc && crtc->enabled) {
		drm_crtc_helper_set_mode(crtc, &crtc->mode,
					 crtc->x, crtc->y, crtc->fb);
	}
}
static void
radeon_connector_update_scratch_regs(struct drm_connector *connector, enum drm_connector_status status)
{
	struct drm_device *dev = connector->dev;
	struct radeon_device *rdev = dev->dev_private;
	struct drm_encoder *best_encoder = NULL;
	struct drm_encoder *encoder = NULL;
	struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
	struct drm_mode_object *obj;
	bool connected;
	int i;

	best_encoder = connector_funcs->best_encoder(connector);

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

		obj = drm_mode_object_find(connector->dev,
					   connector->encoder_ids[i],
					   DRM_MODE_OBJECT_ENCODER);
		if (!obj)
			continue;

		encoder = obj_to_encoder(obj);

		if ((encoder == best_encoder) && (status == connector_status_connected))
			connected = true;
		else
			connected = false;

		if (rdev->is_atom_bios)
			radeon_atombios_connected_scratch_regs(connector, encoder, connected);
		else
			radeon_combios_connected_scratch_regs(connector, encoder, connected);

	}
}

struct drm_encoder *radeon_find_encoder(struct drm_connector *connector, int encoder_type)
{
	struct drm_mode_object *obj;
	struct drm_encoder *encoder;
	int i;

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

		obj = drm_mode_object_find(connector->dev, connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER);
		if (!obj)
			continue;

		encoder = obj_to_encoder(obj);
		if (encoder->encoder_type == encoder_type)
			return encoder;
	}
	return NULL;
}

struct drm_encoder *radeon_best_single_encoder(struct drm_connector *connector)
{
	int enc_id = connector->encoder_ids[0];
	struct drm_mode_object *obj;
	struct drm_encoder *encoder;

	/* pick the encoder ids */
	if (enc_id) {
		obj = drm_mode_object_find(connector->dev, enc_id, DRM_MODE_OBJECT_ENCODER);
		if (!obj)
			return NULL;
		encoder = obj_to_encoder(obj);
		return encoder;
	}
	return NULL;
}

/*
 * radeon_connector_analog_encoder_conflict_solve
 * - search for other connectors sharing this encoder
 *   if priority is true, then set them disconnected if this is connected
 *   if priority is false, set us disconnected if they are connected
 */
static enum drm_connector_status
radeon_connector_analog_encoder_conflict_solve(struct drm_connector *connector,
					       struct drm_encoder *encoder,
					       enum drm_connector_status current_status,
					       bool priority)
{
	struct drm_device *dev = connector->dev;
	struct drm_connector *conflict;
	int i;

	list_for_each_entry(conflict, &dev->mode_config.connector_list, head) {
		if (conflict == connector)
			continue;

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

			/* if the IDs match */
			if (conflict->encoder_ids[i] == encoder->base.id) {
				if (conflict->status != connector_status_connected)
					continue;

				if (priority == true) {
					DRM_INFO("1: conflicting encoders switching off %s\n", drm_get_connector_name(conflict));
					DRM_INFO("in favor of %s\n", drm_get_connector_name(connector));
					conflict->status = connector_status_disconnected;
					radeon_connector_update_scratch_regs(conflict, connector_status_disconnected);
				} else {
					DRM_INFO("2: conflicting encoders switching off %s\n", drm_get_connector_name(connector));
					DRM_INFO("in favor of %s\n", drm_get_connector_name(conflict));
					current_status = connector_status_disconnected;
				}
				break;
			}
		}
	}
	return current_status;

}

static struct drm_display_mode *radeon_fp_native_mode(struct drm_encoder *encoder)
{
	struct drm_device *dev = encoder->dev;
	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
	struct drm_display_mode *mode = NULL;
	struct radeon_native_mode *native_mode = &radeon_encoder->native_mode;

	if (native_mode->panel_xres != 0 &&
	    native_mode->panel_yres != 0 &&
	    native_mode->dotclock != 0) {
		mode = drm_mode_create(dev);

		mode->hdisplay = native_mode->panel_xres;
		mode->vdisplay = native_mode->panel_yres;

		mode->htotal = mode->hdisplay + native_mode->hblank;
		mode->hsync_start = mode->hdisplay + native_mode->hoverplus;
		mode->hsync_end = mode->hsync_start + native_mode->hsync_width;
		mode->vtotal = mode->vdisplay + native_mode->vblank;
		mode->vsync_start = mode->vdisplay + native_mode->voverplus;
		mode->vsync_end = mode->vsync_start + native_mode->vsync_width;
		mode->clock = native_mode->dotclock;
		mode->flags = 0;

		mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
		drm_mode_set_name(mode);

		DRM_DEBUG("Adding native panel mode %s\n", mode->name);
	}
	return mode;
}

static void radeon_add_common_modes(struct drm_encoder *encoder, struct drm_connector *connector)
{
	struct drm_device *dev = encoder->dev;
	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
	struct drm_display_mode *mode = NULL;
	struct radeon_native_mode *native_mode = &radeon_encoder->native_mode;
	int i;
	struct mode_size {
		int w;
		int h;
	} common_modes[17] = {
		{ 640,  480},
		{ 720,  480},
		{ 800,  600},
		{ 848,  480},
		{1024,  768},
		{1152,  768},
		{1280,  720},
		{1280,  800},
		{1280,  854},
		{1280,  960},
		{1280, 1024},
		{1440,  900},
		{1400, 1050},
		{1680, 1050},
		{1600, 1200},
		{1920, 1080},
		{1920, 1200}
	};

	for (i = 0; i < 17; i++) {
		if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
			if (common_modes[i].w > native_mode->panel_xres ||
			    common_modes[i].h > native_mode->panel_yres ||
			    (common_modes[i].w == native_mode->panel_xres &&
			     common_modes[i].h == native_mode->panel_yres))
				continue;
		}
		if (common_modes[i].w < 320 || common_modes[i].h < 200)
			continue;

		mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h, 60, false, false);
		drm_mode_probed_add(connector, mode);
	}
}

int radeon_connector_set_property(struct drm_connector *connector, struct drm_property *property,
				  uint64_t val)
{
	struct drm_device *dev = connector->dev;
	struct radeon_device *rdev = dev->dev_private;
	struct drm_encoder *encoder;
	struct radeon_encoder *radeon_encoder;

	if (property == rdev->mode_info.coherent_mode_property) {
		struct radeon_encoder_atom_dig *dig;

		/* need to find digital encoder on connector */
		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
		if (!encoder)
			return 0;

		radeon_encoder = to_radeon_encoder(encoder);

		if (!radeon_encoder->enc_priv)
			return 0;

		dig = radeon_encoder->enc_priv;
		dig->coherent_mode = val ? true : false;
		radeon_property_change_mode(&radeon_encoder->base);
	}

	if (property == rdev->mode_info.tv_std_property) {
		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TVDAC);
		if (!encoder) {
			encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_DAC);
		}

		if (!encoder)
			return 0;

		radeon_encoder = to_radeon_encoder(encoder);
		if (!radeon_encoder->enc_priv)
			return 0;
		if (rdev->is_atom_bios) {
			struct radeon_encoder_atom_dac *dac_int;
			dac_int = radeon_encoder->enc_priv;
			dac_int->tv_std = val;
		} else {
			struct radeon_encoder_tv_dac *dac_int;
			dac_int = radeon_encoder->enc_priv;
			dac_int->tv_std = val;
		}
		radeon_property_change_mode(&radeon_encoder->base);
	}

	if (property == rdev->mode_info.load_detect_property) {
		struct radeon_connector *radeon_connector =
			to_radeon_connector(connector);

		if (val == 0)
			radeon_connector->dac_load_detect = false;
		else
			radeon_connector->dac_load_detect = true;
	}

	if (property == rdev->mode_info.tmds_pll_property) {
		struct radeon_encoder_int_tmds *tmds = NULL;
		bool ret = false;
		/* need to find digital encoder on connector */
		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
		if (!encoder)
			return 0;

		radeon_encoder = to_radeon_encoder(encoder);

		tmds = radeon_encoder->enc_priv;
		if (!tmds)
			return 0;

		if (val == 0) {
			if (rdev->is_atom_bios)
				ret = radeon_atombios_get_tmds_info(radeon_encoder, tmds);
			else
				ret = radeon_legacy_get_tmds_info_from_combios(radeon_encoder, tmds);
		}
		if (val == 1 || ret == false) {
			radeon_legacy_get_tmds_info_from_table(radeon_encoder, tmds);
		}
		radeon_property_change_mode(&radeon_encoder->base);
	}

	return 0;
}

static void radeon_fixup_lvds_native_mode(struct drm_encoder *encoder,
					  struct drm_connector *connector)
{
	struct radeon_encoder *radeon_encoder =	to_radeon_encoder(encoder);
	struct radeon_native_mode *native_mode = &radeon_encoder->native_mode;

	/* Try to get native mode details from EDID if necessary */
	if (!native_mode->dotclock) {
		struct drm_display_mode *t, *mode;

		list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
			if (mode->hdisplay == native_mode->panel_xres &&
			    mode->vdisplay == native_mode->panel_yres) {
				native_mode->hblank = mode->htotal - mode->hdisplay;
				native_mode->hoverplus = mode->hsync_start - mode->hdisplay;
				native_mode->hsync_width = mode->hsync_end - mode->hsync_start;
				native_mode->vblank = mode->vtotal - mode->vdisplay;
				native_mode->voverplus = mode->vsync_start - mode->vdisplay;
				native_mode->vsync_width = mode->vsync_end - mode->vsync_start;
				native_mode->dotclock = mode->clock;
				DRM_INFO("Determined LVDS native mode details from EDID\n");
				break;
			}
		}
	}
	if (!native_mode->dotclock) {
		DRM_INFO("No LVDS native mode details, disabling RMX\n");
		radeon_encoder->rmx_type = RMX_OFF;
	}
}

static int radeon_lvds_get_modes(struct drm_connector *connector)
{
	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
	struct drm_encoder *encoder;
	int ret = 0;
	struct drm_display_mode *mode;

	if (radeon_connector->ddc_bus) {
		ret = radeon_ddc_get_modes(radeon_connector);
		if (ret > 0) {
			encoder = radeon_best_single_encoder(connector);
			if (encoder) {
				radeon_fixup_lvds_native_mode(encoder, connector);
				/* add scaled modes */
				radeon_add_common_modes(encoder, connector);
			}
			return ret;
		}
	}

	encoder = radeon_best_single_encoder(connector);
	if (!encoder)
		return 0;

	/* we have no EDID modes */
	mode = radeon_fp_native_mode(encoder);
	if (mode) {
		ret = 1;
		drm_mode_probed_add(connector, mode);
		/* add scaled modes */
		radeon_add_common_modes(encoder, connector);
	}

	return ret;
}

static int radeon_lvds_mode_valid(struct drm_connector *connector,
				  struct drm_display_mode *mode)
{
	return MODE_OK;
}

static enum drm_connector_status radeon_lvds_detect(struct drm_connector *connector)
{
	enum drm_connector_status ret = connector_status_connected;
	/* check acpi lid status ??? */
	radeon_connector_update_scratch_regs(connector, ret);
	return ret;
}

static void radeon_connector_destroy(struct drm_connector *connector)
{
	struct radeon_connector *radeon_connector = to_radeon_connector(connector);

	if (radeon_connector->ddc_bus)
		radeon_i2c_destroy(radeon_connector->ddc_bus);
	kfree(radeon_connector->con_priv);
	drm_sysfs_connector_remove(connector);
	drm_connector_cleanup(connector);
	kfree(connector);
}

static int radeon_lvds_set_property(struct drm_connector *connector,
				    struct drm_property *property,
				    uint64_t value)
{
	struct drm_device *dev = connector->dev;
	struct radeon_encoder *radeon_encoder;
	enum radeon_rmx_type rmx_type;

	DRM_DEBUG("\n");
	if (property != dev->mode_config.scaling_mode_property)
		return 0;

	if (connector->encoder)
		radeon_encoder = to_radeon_encoder(connector->encoder);
	else {
		struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
		radeon_encoder = to_radeon_encoder(connector_funcs->best_encoder(connector));
	}

	switch (value) {
	case DRM_MODE_SCALE_NONE: rmx_type = RMX_OFF; break;
	case DRM_MODE_SCALE_CENTER: rmx_type = RMX_CENTER; break;
	case DRM_MODE_SCALE_ASPECT: rmx_type = RMX_ASPECT; break;
	default:
	case DRM_MODE_SCALE_FULLSCREEN: rmx_type = RMX_FULL; break;
	}
	if (radeon_encoder->rmx_type == rmx_type)
		return 0;

	radeon_encoder->rmx_type = rmx_type;

	radeon_property_change_mode(&radeon_encoder->base);
	return 0;
}


struct drm_connector_helper_funcs radeon_lvds_connector_helper_funcs = {
	.get_modes = radeon_lvds_get_modes,
	.mode_valid = radeon_lvds_mode_valid,
	.best_encoder = radeon_best_single_encoder,
};

struct drm_connector_funcs radeon_lvds_connector_funcs = {
	.dpms = drm_helper_connector_dpms,
	.detect = radeon_lvds_detect,
	.fill_modes = drm_helper_probe_single_connector_modes,
	.destroy = radeon_connector_destroy,
	.set_property = radeon_lvds_set_property,
};

static int radeon_vga_get_modes(struct drm_connector *connector)
{
	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
	int ret;

	ret = radeon_ddc_get_modes(radeon_connector);

	return ret;
}

static int radeon_vga_mode_valid(struct drm_connector *connector,
				  struct drm_display_mode *mode)
{
	return MODE_OK;
}

static enum drm_connector_status radeon_vga_detect(struct drm_connector *connector)
{
	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
	struct drm_encoder *encoder;
	struct drm_encoder_helper_funcs *encoder_funcs;
	bool dret;
	enum drm_connector_status ret = connector_status_disconnected;

	encoder = radeon_best_single_encoder(connector);
	if (!encoder)
		ret = connector_status_disconnected;

	radeon_i2c_do_lock(radeon_connector, 1);
	dret = radeon_ddc_probe(radeon_connector);
	radeon_i2c_do_lock(radeon_connector, 0);
	if (dret)
		ret = connector_status_connected;
	else {
		if (radeon_connector->dac_load_detect) {
			encoder_funcs = encoder->helper_private;
			ret = encoder_funcs->detect(encoder, connector);
		}
	}

	if (ret == connector_status_connected)
		ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true);
	radeon_connector_update_scratch_regs(connector, ret);
	return ret;
}

struct drm_connector_helper_funcs radeon_vga_connector_helper_funcs = {
	.get_modes = radeon_vga_get_modes,
	.mode_valid = radeon_vga_mode_valid,
	.best_encoder = radeon_best_single_encoder,
};

struct drm_connector_funcs radeon_vga_connector_funcs = {
	.dpms = drm_helper_connector_dpms,
	.detect = radeon_vga_detect,
	.fill_modes = drm_helper_probe_single_connector_modes,
	.destroy = radeon_connector_destroy,
	.set_property = radeon_connector_set_property,
};

static int radeon_tv_get_modes(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
	struct radeon_device *rdev = dev->dev_private;
	struct drm_display_mode *tv_mode;
	struct drm_encoder *encoder;

	encoder = radeon_best_single_encoder(connector);
	if (!encoder)
		return 0;

	/* avivo chips can scale any mode */
	if (rdev->family >= CHIP_RS600)
		/* add scaled modes */
		radeon_add_common_modes(encoder, connector);
	else {
		/* only 800x600 is supported right now on pre-avivo chips */
		tv_mode = drm_cvt_mode(dev, 800, 600, 60, false, false);
		tv_mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
		drm_mode_probed_add(connector, tv_mode);
	}
	return 1;
}

static int radeon_tv_mode_valid(struct drm_connector *connector,
				struct drm_display_mode *mode)
{
	return MODE_OK;
}

static enum drm_connector_status radeon_tv_detect(struct drm_connector *connector)
{
	struct drm_encoder *encoder;
	struct drm_encoder_helper_funcs *encoder_funcs;
	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
	enum drm_connector_status ret = connector_status_disconnected;

	if (!radeon_connector->dac_load_detect)
		return ret;

	encoder = radeon_best_single_encoder(connector);
	if (!encoder)
		ret = connector_status_disconnected;
	else {
		encoder_funcs = encoder->helper_private;
		ret = encoder_funcs->detect(encoder, connector);
	}
	if (ret == connector_status_connected)
		ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, false);
	radeon_connector_update_scratch_regs(connector, ret);
	return ret;
}

struct drm_connector_helper_funcs radeon_tv_connector_helper_funcs = {
	.get_modes = radeon_tv_get_modes,
	.mode_valid = radeon_tv_mode_valid,
	.best_encoder = radeon_best_single_encoder,
};

struct drm_connector_funcs radeon_tv_connector_funcs = {
	.dpms = drm_helper_connector_dpms,
	.detect = radeon_tv_detect,
	.fill_modes = drm_helper_probe_single_connector_modes,
	.destroy = radeon_connector_destroy,
	.set_property = radeon_connector_set_property,
};

static int radeon_dvi_get_modes(struct drm_connector *connector)
{
	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
	int ret;

	ret = radeon_ddc_get_modes(radeon_connector);
	return ret;
}

/*
 * DVI is complicated
 * Do a DDC probe, if DDC probe passes, get the full EDID so
 * we can do analog/digital monitor detection at this point.
 * If the monitor is an analog monitor or we got no DDC,
 * we need to find the DAC encoder object for this connector.
 * If we got no DDC, we do load detection on the DAC encoder object.
 * If we got analog DDC or load detection passes on the DAC encoder
 * we have to check if this analog encoder is shared with anyone else (TV)
 * if its shared we have to set the other connector to disconnected.
 */
static enum drm_connector_status radeon_dvi_detect(struct drm_connector *connector)
{
	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
	struct drm_encoder *encoder = NULL;
	struct drm_encoder_helper_funcs *encoder_funcs;
	struct drm_mode_object *obj;
	int i;
	enum drm_connector_status ret = connector_status_disconnected;
	bool dret;

	radeon_i2c_do_lock(radeon_connector, 1);
	dret = radeon_ddc_probe(radeon_connector);
	radeon_i2c_do_lock(radeon_connector, 0);
	if (dret) {
		radeon_i2c_do_lock(radeon_connector, 1);
		radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
		radeon_i2c_do_lock(radeon_connector, 0);

		if (!radeon_connector->edid) {
			DRM_ERROR("DDC responded but not EDID found for %s\n",
				  drm_get_connector_name(connector));
		} else {
			radeon_connector->use_digital = !!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL);

			/* if this isn't a digital monitor
			   then we need to make sure we don't have any
			   TV conflicts */
			ret = connector_status_connected;
		}
	}

	if ((ret == connector_status_connected) && (radeon_connector->use_digital == true))
		goto out;

	/* find analog encoder */
	if (radeon_connector->dac_load_detect) {
		for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
			if (connector->encoder_ids[i] == 0)
				break;

			obj = drm_mode_object_find(connector->dev,
						   connector->encoder_ids[i],
						   DRM_MODE_OBJECT_ENCODER);
			if (!obj)
				continue;

			encoder = obj_to_encoder(obj);

			encoder_funcs = encoder->helper_private;
			if (encoder_funcs->detect) {
				if (ret != connector_status_connected) {
					ret = encoder_funcs->detect(encoder, connector);
					if (ret == connector_status_connected) {
						radeon_connector->use_digital = false;
					}
				}
				break;
			}
		}
	}

	if ((ret == connector_status_connected) && (radeon_connector->use_digital == false) &&
	    encoder) {
		ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true);
	}

out:
	/* updated in get modes as well since we need to know if it's analog or digital */
	radeon_connector_update_scratch_regs(connector, ret);
	return ret;
}

/* okay need to be smart in here about which encoder to pick */
struct drm_encoder *radeon_dvi_encoder(struct drm_connector *connector)
{
	int enc_id = connector->encoder_ids[0];
	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
	struct drm_mode_object *obj;
	struct drm_encoder *encoder;
	int i;
	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		if (connector->encoder_ids[i] == 0)
			break;

		obj = drm_mode_object_find(connector->dev, connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER);
		if (!obj)
			continue;

		encoder = obj_to_encoder(obj);

		if (radeon_connector->use_digital == true) {
			if (encoder->encoder_type == DRM_MODE_ENCODER_TMDS)
				return encoder;
		} else {
			if (encoder->encoder_type == DRM_MODE_ENCODER_DAC ||
			    encoder->encoder_type == DRM_MODE_ENCODER_TVDAC)
				return encoder;
		}
	}

	/* see if we have a default encoder  TODO */

	/* then check use digitial */
	/* pick the first one */
	if (enc_id) {
		obj = drm_mode_object_find(connector->dev, enc_id, DRM_MODE_OBJECT_ENCODER);
		if (!obj)
			return NULL;
		encoder = obj_to_encoder(obj);
		return encoder;
	}
	return NULL;
}

struct drm_connector_helper_funcs radeon_dvi_connector_helper_funcs = {
	.get_modes = radeon_dvi_get_modes,
	.mode_valid = radeon_vga_mode_valid,
	.best_encoder = radeon_dvi_encoder,
};

struct drm_connector_funcs radeon_dvi_connector_funcs = {
	.dpms = drm_helper_connector_dpms,
	.detect = radeon_dvi_detect,
	.fill_modes = drm_helper_probe_single_connector_modes,
	.set_property = radeon_connector_set_property,
	.destroy = radeon_connector_destroy,
};

void
radeon_add_atom_connector(struct drm_device *dev,
			  uint32_t connector_id,
			  uint32_t supported_device,
			  int connector_type,
			  struct radeon_i2c_bus_rec *i2c_bus,
			  bool linkb,
			  uint32_t igp_lane_info)
{
	struct radeon_device *rdev = dev->dev_private;
	struct drm_connector *connector;
	struct radeon_connector *radeon_connector;
	struct radeon_connector_atom_dig *radeon_dig_connector;
	uint32_t subpixel_order = SubPixelNone;

	/* fixme - tv/cv/din */
	if (connector_type == DRM_MODE_CONNECTOR_Unknown)
		return;

	/* see if we already added it */
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		radeon_connector = to_radeon_connector(connector);
		if (radeon_connector->connector_id == connector_id) {
			radeon_connector->devices |= supported_device;
			return;
		}
	}

	radeon_connector = kzalloc(sizeof(struct radeon_connector), GFP_KERNEL);
	if (!radeon_connector)
		return;

	connector = &radeon_connector->base;

	radeon_connector->connector_id = connector_id;
	radeon_connector->devices = supported_device;
	switch (connector_type) {
	case DRM_MODE_CONNECTOR_VGA:
		drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
		drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
		if (i2c_bus->valid) {
			radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "VGA");
			if (!radeon_connector->ddc_bus)
				goto failed;
		}
		drm_connector_attach_property(&radeon_connector->base,
					      rdev->mode_info.load_detect_property,
					      1);
		break;
	case DRM_MODE_CONNECTOR_DVIA:
		drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
		drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
		if (i2c_bus->valid) {
			radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "DVI");
			if (!radeon_connector->ddc_bus)
				goto failed;
		}
		drm_connector_attach_property(&radeon_connector->base,
					      rdev->mode_info.load_detect_property,
					      1);
		break;
	case DRM_MODE_CONNECTOR_DVII:
	case DRM_MODE_CONNECTOR_DVID:
		radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
		if (!radeon_dig_connector)
			goto failed;
		radeon_dig_connector->linkb = linkb;
		radeon_dig_connector->igp_lane_info = igp_lane_info;
		radeon_connector->con_priv = radeon_dig_connector;
		drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
		drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
		if (i2c_bus->valid) {
			radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "DVI");
			if (!radeon_connector->ddc_bus)
				goto failed;
		}
		subpixel_order = SubPixelHorizontalRGB;
		drm_connector_attach_property(&radeon_connector->base,
					      rdev->mode_info.coherent_mode_property,
					      1);
		drm_connector_attach_property(&radeon_connector->base,
					      rdev->mode_info.load_detect_property,
					      1);
		break;
	case DRM_MODE_CONNECTOR_HDMIA:
	case DRM_MODE_CONNECTOR_HDMIB:
		radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
		if (!radeon_dig_connector)
			goto failed;
		radeon_dig_connector->linkb = linkb;
		radeon_dig_connector->igp_lane_info = igp_lane_info;
		radeon_connector->con_priv = radeon_dig_connector;
		drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
		drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
		if (i2c_bus->valid) {
			radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "HDMI");
			if (!radeon_connector->ddc_bus)
				goto failed;
		}
		drm_connector_attach_property(&radeon_connector->base,
					      rdev->mode_info.coherent_mode_property,
					      1);
		subpixel_order = SubPixelHorizontalRGB;
		break;
	case DRM_MODE_CONNECTOR_DisplayPort:
		radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
		if (!radeon_dig_connector)
			goto failed;
		radeon_dig_connector->linkb = linkb;
		radeon_dig_connector->igp_lane_info = igp_lane_info;
		radeon_connector->con_priv = radeon_dig_connector;
		drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
		drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
		if (i2c_bus->valid) {
			radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "DP");
			if (!radeon_connector->ddc_bus)
				goto failed;
		}
		subpixel_order = SubPixelHorizontalRGB;
		break;
	case DRM_MODE_CONNECTOR_SVIDEO:
	case DRM_MODE_CONNECTOR_Composite:
	case DRM_MODE_CONNECTOR_9PinDIN:
		if (radeon_tv == 1) {
			drm_connector_init(dev, &radeon_connector->base, &radeon_tv_connector_funcs, connector_type);
			drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
		}
		drm_connector_attach_property(&radeon_connector->base,
					      rdev->mode_info.load_detect_property,
					      1);
		break;
	case DRM_MODE_CONNECTOR_LVDS:
		radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
		if (!radeon_dig_connector)
			goto failed;
		radeon_dig_connector->linkb = linkb;
		radeon_dig_connector->igp_lane_info = igp_lane_info;
		radeon_connector->con_priv = radeon_dig_connector;
		drm_connector_init(dev, &radeon_connector->base, &radeon_lvds_connector_funcs, connector_type);
		drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
		if (i2c_bus->valid) {
			radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "LVDS");
			if (!radeon_connector->ddc_bus)
				goto failed;
		}
		drm_mode_create_scaling_mode_property(dev);
		drm_connector_attach_property(&radeon_connector->base,
					      dev->mode_config.scaling_mode_property,
					      DRM_MODE_SCALE_FULLSCREEN);
		subpixel_order = SubPixelHorizontalRGB;
		break;
	}

	connector->display_info.subpixel_order = subpixel_order;
	drm_sysfs_connector_add(connector);
	return;

failed:
	if (radeon_connector->ddc_bus)
		radeon_i2c_destroy(radeon_connector->ddc_bus);
	drm_connector_cleanup(connector);
	kfree(connector);
}

void
radeon_add_legacy_connector(struct drm_device *dev,
			    uint32_t connector_id,
			    uint32_t supported_device,
			    int connector_type,
			    struct radeon_i2c_bus_rec *i2c_bus)
{
	struct radeon_device *rdev = dev->dev_private;
	struct drm_connector *connector;
	struct radeon_connector *radeon_connector;
	uint32_t subpixel_order = SubPixelNone;

	/* fixme - tv/cv/din */
	if (connector_type == DRM_MODE_CONNECTOR_Unknown)
		return;

	/* see if we already added it */
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		radeon_connector = to_radeon_connector(connector);
		if (radeon_connector->connector_id == connector_id) {
			radeon_connector->devices |= supported_device;
			return;
		}
	}

	radeon_connector = kzalloc(sizeof(struct radeon_connector), GFP_KERNEL);
	if (!radeon_connector)
		return;

	connector = &radeon_connector->base;

	radeon_connector->connector_id = connector_id;
	radeon_connector->devices = supported_device;
	switch (connector_type) {
	case DRM_MODE_CONNECTOR_VGA:
		drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
		drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
		if (i2c_bus->valid) {
			radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "VGA");
			if (!radeon_connector->ddc_bus)
				goto failed;
		}
		drm_connector_attach_property(&radeon_connector->base,
					      rdev->mode_info.load_detect_property,
					      1);
		break;
	case DRM_MODE_CONNECTOR_DVIA:
		drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
		drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
		if (i2c_bus->valid) {
			radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "DVI");
			if (!radeon_connector->ddc_bus)
				goto failed;
		}
		drm_connector_attach_property(&radeon_connector->base,
					      rdev->mode_info.load_detect_property,
					      1);
		break;
	case DRM_MODE_CONNECTOR_DVII:
	case DRM_MODE_CONNECTOR_DVID:
		drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
		drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
		if (i2c_bus->valid) {
			radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "DVI");
			if (!radeon_connector->ddc_bus)
				goto failed;
			drm_connector_attach_property(&radeon_connector->base,
						      rdev->mode_info.load_detect_property,
						      1);
		}
		subpixel_order = SubPixelHorizontalRGB;
		break;
	case DRM_MODE_CONNECTOR_SVIDEO:
	case DRM_MODE_CONNECTOR_Composite:
	case DRM_MODE_CONNECTOR_9PinDIN:
		if (radeon_tv == 1) {
			drm_connector_init(dev, &radeon_connector->base, &radeon_tv_connector_funcs, connector_type);
			drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
			drm_connector_attach_property(&radeon_connector->base,
						      rdev->mode_info.load_detect_property,
						      1);
		}
		break;
	case DRM_MODE_CONNECTOR_LVDS:
		drm_connector_init(dev, &radeon_connector->base, &radeon_lvds_connector_funcs, connector_type);
		drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
		if (i2c_bus->valid) {
			radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "LVDS");
			if (!radeon_connector->ddc_bus)
				goto failed;
		}
		drm_connector_attach_property(&radeon_connector->base,
					      dev->mode_config.scaling_mode_property,
					      DRM_MODE_SCALE_FULLSCREEN);
		subpixel_order = SubPixelHorizontalRGB;
		break;
	}

	connector->display_info.subpixel_order = subpixel_order;
	drm_sysfs_connector_add(connector);
	return;

failed:
	if (radeon_connector->ddc_bus)
		radeon_i2c_destroy(radeon_connector->ddc_bus);
	drm_connector_cleanup(connector);
	kfree(connector);
}