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drm/nouveau: Break some long lines.
[linux-2.6-block.git] / drivers / gpu / drm / nouveau / nouveau_connector.c
CommitLineData
6ee73861
BS		 1/*
2 * Copyright (C) 2008 Maarten Maathuis.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27#include "drmP.h"
28#include "drm_edid.h"
29#include "drm_crtc_helper.h"
30#include "nouveau_reg.h"
31#include "nouveau_drv.h"
32#include "nouveau_encoder.h"
33#include "nouveau_crtc.h"
34#include "nouveau_connector.h"
35#include "nouveau_hw.h"
36
37static inline struct drm_encoder_slave_funcs *
38get_slave_funcs(struct nouveau_encoder *enc)
39{
40 return to_encoder_slave(to_drm_encoder(enc))->slave_funcs;
41}
42
43static struct nouveau_encoder *
44find_encoder_by_type(struct drm_connector *connector, int type)
45{
46 struct drm_device *dev = connector->dev;
47 struct nouveau_encoder *nv_encoder;
48 struct drm_mode_object *obj;
49 int i, id;
50
51 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
52 id = connector->encoder_ids[i];
53 if (!id)
54 break;
55
56 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
57 if (!obj)
58 continue;
59 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
60
61 if (type == OUTPUT_ANY || nv_encoder->dcb->type == type)
62 return nv_encoder;
63 }
64
65 return NULL;
66}
67
68struct nouveau_connector *
69nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
70{
71 struct drm_device *dev = to_drm_encoder(encoder)->dev;
72 struct drm_connector *drm_connector;
73
74 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
75 if (drm_connector->encoder == to_drm_encoder(encoder))
76 return nouveau_connector(drm_connector);
77 }
78
79 return NULL;
80}
81
82
83static void
84nouveau_connector_destroy(struct drm_connector *drm_connector)
85{
86 struct nouveau_connector *connector = nouveau_connector(drm_connector);
87 struct drm_device *dev = connector->base.dev;
88
ef2bb506 89 NV_DEBUG_KMS(dev, "\n");
6ee73861
BS		 90
91 if (!connector)
92 return;
93
94 drm_sysfs_connector_remove(drm_connector);
95 drm_connector_cleanup(drm_connector);
96 kfree(drm_connector);
97}
98
99static void
100nouveau_connector_ddc_prepare(struct drm_connector *connector, int *flags)
101{
102 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
103
104 if (dev_priv->card_type >= NV_50)
105 return;
106
107 *flags = 0;
108 if (NVLockVgaCrtcs(dev_priv->dev, false))
109 *flags |= 1;
110 if (nv_heads_tied(dev_priv->dev))
111 *flags |= 2;
112
113 if (*flags & 2)
114 NVSetOwner(dev_priv->dev, 0); /* necessary? */
115}
116
117static void
118nouveau_connector_ddc_finish(struct drm_connector *connector, int flags)
119{
120 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
121
122 if (dev_priv->card_type >= NV_50)
123 return;
124
125 if (flags & 2)
126 NVSetOwner(dev_priv->dev, 4);
127 if (flags & 1)
128 NVLockVgaCrtcs(dev_priv->dev, true);
129}
130
131static struct nouveau_i2c_chan *
132nouveau_connector_ddc_detect(struct drm_connector *connector,
133 struct nouveau_encoder **pnv_encoder)
134{
135 struct drm_device *dev = connector->dev;
136 uint8_t out_buf[] = { 0x0, 0x0}, buf[2];
137 int ret, flags, i;
138
139 struct i2c_msg msgs[] = {
140 {
141 .addr = 0x50,
142 .flags = 0,
143 .len = 1,
144 .buf = out_buf,
145 },
146 {
147 .addr = 0x50,
148 .flags = I2C_M_RD,
149 .len = 1,
150 .buf = buf,
151 }
152 };
153
154 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
155 struct nouveau_i2c_chan *i2c = NULL;
156 struct nouveau_encoder *nv_encoder;
157 struct drm_mode_object *obj;
158 int id;
159
160 id = connector->encoder_ids[i];
161 if (!id)
162 break;
163
164 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
165 if (!obj)
166 continue;
167 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
168
169 if (nv_encoder->dcb->i2c_index < 0xf)
170 i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
171 if (!i2c)
172 continue;
173
174 nouveau_connector_ddc_prepare(connector, &flags);
175 ret = i2c_transfer(&i2c->adapter, msgs, 2);
176 nouveau_connector_ddc_finish(connector, flags);
177
178 if (ret == 2) {
179 *pnv_encoder = nv_encoder;
180 return i2c;
181 }
182 }
183
184 return NULL;
185}
186
187static void
188nouveau_connector_set_encoder(struct drm_connector *connector,
189 struct nouveau_encoder *nv_encoder)
190{
191 struct nouveau_connector *nv_connector = nouveau_connector(connector);
192 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
193 struct drm_device *dev = connector->dev;
194
195 if (nv_connector->detected_encoder == nv_encoder)
196 return;
197 nv_connector->detected_encoder = nv_encoder;
198
199 if (nv_encoder->dcb->type == OUTPUT_LVDS ||
200 nv_encoder->dcb->type == OUTPUT_TMDS) {
201 connector->doublescan_allowed = false;
202 connector->interlace_allowed = false;
203 } else {
204 connector->doublescan_allowed = true;
205 if (dev_priv->card_type == NV_20 ||
206 (dev_priv->card_type == NV_10 &&
207 (dev->pci_device & 0x0ff0) != 0x0100 &&
208 (dev->pci_device & 0x0ff0) != 0x0150))
209 /* HW is broken */
210 connector->interlace_allowed = false;
211 else
212 connector->interlace_allowed = true;
213 }
214
215 if (connector->connector_type == DRM_MODE_CONNECTOR_DVII) {
216 drm_connector_property_set_value(connector,
217 dev->mode_config.dvi_i_subconnector_property,
218 nv_encoder->dcb->type == OUTPUT_TMDS ?
219 DRM_MODE_SUBCONNECTOR_DVID :
220 DRM_MODE_SUBCONNECTOR_DVIA);
221 }
222}
223
224static enum drm_connector_status
225nouveau_connector_detect(struct drm_connector *connector)
226{
227 struct drm_device *dev = connector->dev;
228 struct nouveau_connector *nv_connector = nouveau_connector(connector);
229 struct nouveau_encoder *nv_encoder = NULL;
230 struct nouveau_i2c_chan *i2c;
231 int type, flags;
232
233 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
234 nv_encoder = find_encoder_by_type(connector, OUTPUT_LVDS);
235 if (nv_encoder && nv_connector->native_mode) {
236 nouveau_connector_set_encoder(connector, nv_encoder);
237 return connector_status_connected;
238 }
239
240 i2c = nouveau_connector_ddc_detect(connector, &nv_encoder);
241 if (i2c) {
242 nouveau_connector_ddc_prepare(connector, &flags);
243 nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
244 nouveau_connector_ddc_finish(connector, flags);
245 drm_mode_connector_update_edid_property(connector,
246 nv_connector->edid);
247 if (!nv_connector->edid) {
248 NV_ERROR(dev, "DDC responded, but no EDID for %s\n",
249 drm_get_connector_name(connector));
250 return connector_status_disconnected;
251 }
252
253 if (nv_encoder->dcb->type == OUTPUT_DP &&
254 !nouveau_dp_detect(to_drm_encoder(nv_encoder))) {
255 NV_ERROR(dev, "Detected %s, but failed init\n",
256 drm_get_connector_name(connector));
257 return connector_status_disconnected;
258 }
259
260 /* Override encoder type for DVI-I based on whether EDID
261 * says the display is digital or analog, both use the
262 * same i2c channel so the value returned from ddc_detect
263 * isn't necessarily correct.
264 */
265 if (connector->connector_type == DRM_MODE_CONNECTOR_DVII) {
266 if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
267 type = OUTPUT_TMDS;
268 else
269 type = OUTPUT_ANALOG;
270
271 nv_encoder = find_encoder_by_type(connector, type);
272 if (!nv_encoder) {
273 NV_ERROR(dev, "Detected %d encoder on %s, "
274 "but no object!\n", type,
275 drm_get_connector_name(connector));
276 return connector_status_disconnected;
277 }
278 }
279
280 nouveau_connector_set_encoder(connector, nv_encoder);
281 return connector_status_connected;
282 }
283
284 nv_encoder = find_encoder_by_type(connector, OUTPUT_ANALOG);
285 if (!nv_encoder)
286 nv_encoder = find_encoder_by_type(connector, OUTPUT_TV);
287 if (nv_encoder) {
288 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
289 struct drm_encoder_helper_funcs *helper =
290 encoder->helper_private;
291
292 if (helper->detect(encoder, connector) ==
293 connector_status_connected) {
294 nouveau_connector_set_encoder(connector, nv_encoder);
295 return connector_status_connected;
296 }
297
298 }
299
300 return connector_status_disconnected;
301}
302
303static void
304nouveau_connector_force(struct drm_connector *connector)
305{
306 struct drm_device *dev = connector->dev;
307 struct nouveau_encoder *nv_encoder;
308 int type;
309
310 if (connector->connector_type == DRM_MODE_CONNECTOR_DVII) {
311 if (connector->force == DRM_FORCE_ON_DIGITAL)
312 type = OUTPUT_TMDS;
313 else
314 type = OUTPUT_ANALOG;
315 } else
316 type = OUTPUT_ANY;
317
318 nv_encoder = find_encoder_by_type(connector, type);
319 if (!nv_encoder) {
320 NV_ERROR(dev, "can't find encoder to force %s on!\n",
321 drm_get_connector_name(connector));
322 connector->status = connector_status_disconnected;
323 return;
324 }
325
326 nouveau_connector_set_encoder(connector, nv_encoder);
327}
328
329static int
330nouveau_connector_set_property(struct drm_connector *connector,
331 struct drm_property *property, uint64_t value)
332{
333 struct nouveau_connector *nv_connector = nouveau_connector(connector);
334 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
335 struct drm_device *dev = connector->dev;
336 int ret;
337
338 /* Scaling mode */
339 if (property == dev->mode_config.scaling_mode_property) {
340 struct nouveau_crtc *nv_crtc = NULL;
341 bool modeset = false;
342
343 switch (value) {
344 case DRM_MODE_SCALE_NONE:
345 case DRM_MODE_SCALE_FULLSCREEN:
346 case DRM_MODE_SCALE_CENTER:
347 case DRM_MODE_SCALE_ASPECT:
348 break;
349 default:
350 return -EINVAL;
351 }
352
353 /* LVDS always needs gpu scaling */
354 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS &&
355 value == DRM_MODE_SCALE_NONE)
356 return -EINVAL;
357
358 /* Changing between GPU and panel scaling requires a full
359 * modeset
360 */
361 if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) ||
362 (value == DRM_MODE_SCALE_NONE))
363 modeset = true;
364 nv_connector->scaling_mode = value;
365
366 if (connector->encoder && connector->encoder->crtc)
367 nv_crtc = nouveau_crtc(connector->encoder->crtc);
368 if (!nv_crtc)
369 return 0;
370
371 if (modeset || !nv_crtc->set_scale) {
372 ret = drm_crtc_helper_set_mode(&nv_crtc->base,
373 &nv_crtc->base.mode,
374 nv_crtc->base.x,
375 nv_crtc->base.y, NULL);
376 if (!ret)
377 return -EINVAL;
378 } else {
379 ret = nv_crtc->set_scale(nv_crtc, value, true);
380 if (ret)
381 return ret;
382 }
383
384 return 0;
385 }
386
387 /* Dithering */
388 if (property == dev->mode_config.dithering_mode_property) {
389 struct nouveau_crtc *nv_crtc = NULL;
390
391 if (value == DRM_MODE_DITHERING_ON)
392 nv_connector->use_dithering = true;
393 else
394 nv_connector->use_dithering = false;
395
396 if (connector->encoder && connector->encoder->crtc)
397 nv_crtc = nouveau_crtc(connector->encoder->crtc);
398
399 if (!nv_crtc || !nv_crtc->set_dither)
400 return 0;
401
402 return nv_crtc->set_dither(nv_crtc, nv_connector->use_dithering,
403 true);
404 }
405
406 if (nv_encoder && nv_encoder->dcb->type == OUTPUT_TV)
407 return get_slave_funcs(nv_encoder)->
408 set_property(to_drm_encoder(nv_encoder), connector, property, value);
409
410 return -EINVAL;
411}
412
413static struct drm_display_mode *
414nouveau_connector_native_mode(struct nouveau_connector *connector)
415{
416 struct drm_device *dev = connector->base.dev;
417 struct drm_display_mode *mode, *largest = NULL;
418 int high_w = 0, high_h = 0, high_v = 0;
419
420 /* Use preferred mode if there is one.. */
421 list_for_each_entry(mode, &connector->base.probed_modes, head) {
422 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
ef2bb506 423 NV_DEBUG_KMS(dev, "native mode from preferred\n");
6ee73861
BS		 424 return drm_mode_duplicate(dev, mode);
425 }
426 }
427
428 /* Otherwise, take the resolution with the largest width, then height,
429 * then vertical refresh
430 */
431 list_for_each_entry(mode, &connector->base.probed_modes, head) {
432 if (mode->hdisplay < high_w)
433 continue;
434
435 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
436 continue;
437
438 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
439 mode->vrefresh < high_v)
440 continue;
441
442 high_w = mode->hdisplay;
443 high_h = mode->vdisplay;
444 high_v = mode->vrefresh;
445 largest = mode;
446 }
447
ef2bb506 448 NV_DEBUG_KMS(dev, "native mode from largest: %dx%d@%d\n",
6ee73861
BS		 449 high_w, high_h, high_v);
450 return largest ? drm_mode_duplicate(dev, largest) : NULL;
451}
452
453struct moderec {
454 int hdisplay;
455 int vdisplay;
456};
457
458static struct moderec scaler_modes[] = {
459 { 1920, 1200 },
460 { 1920, 1080 },
461 { 1680, 1050 },
462 { 1600, 1200 },
463 { 1400, 1050 },
464 { 1280, 1024 },
465 { 1280, 960 },
466 { 1152, 864 },
467 { 1024, 768 },
468 { 800, 600 },
469 { 720, 400 },
470 { 640, 480 },
471 { 640, 400 },
472 { 640, 350 },
473 {}
474};
475
476static int
477nouveau_connector_scaler_modes_add(struct drm_connector *connector)
478{
479 struct nouveau_connector *nv_connector = nouveau_connector(connector);
480 struct drm_display_mode *native = nv_connector->native_mode, *m;
481 struct drm_device *dev = connector->dev;
482 struct moderec *mode = &scaler_modes[0];
483 int modes = 0;
484
485 if (!native)
486 return 0;
487
488 while (mode->hdisplay) {
489 if (mode->hdisplay <= native->hdisplay &&
490 mode->vdisplay <= native->vdisplay) {
491 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
492 drm_mode_vrefresh(native), false,
493 false, false);
494 if (!m)
495 continue;
496
497 m->type |= DRM_MODE_TYPE_DRIVER;
498
499 drm_mode_probed_add(connector, m);
500 modes++;
501 }
502
503 mode++;
504 }
505
506 return modes;
507}
508
509static int
510nouveau_connector_get_modes(struct drm_connector *connector)
511{
512 struct drm_device *dev = connector->dev;
513 struct nouveau_connector *nv_connector = nouveau_connector(connector);
514 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
515 int ret = 0;
516
517 /* If we're not LVDS, destroy the previous native mode, the attached
518 * monitor could have changed.
519 */
520 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS &&
521 nv_connector->native_mode) {
522 drm_mode_destroy(dev, nv_connector->native_mode);
523 nv_connector->native_mode = NULL;
524 }
525
526 if (nv_connector->edid)
527 ret = drm_add_edid_modes(connector, nv_connector->edid);
528
529 /* Find the native mode if this is a digital panel, if we didn't
530 * find any modes through DDC previously add the native mode to
531 * the list of modes.
532 */
533 if (!nv_connector->native_mode)
534 nv_connector->native_mode =
535 nouveau_connector_native_mode(nv_connector);
536 if (ret == 0 && nv_connector->native_mode) {
537 struct drm_display_mode *mode;
538
539 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
540 drm_mode_probed_add(connector, mode);
541 ret = 1;
542 }
543
544 if (nv_encoder->dcb->type == OUTPUT_TV)
545 ret = get_slave_funcs(nv_encoder)->
546 get_modes(to_drm_encoder(nv_encoder), connector);
547
548 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
549 ret += nouveau_connector_scaler_modes_add(connector);
550
551 return ret;
552}
553
554static int
555nouveau_connector_mode_valid(struct drm_connector *connector,
556 struct drm_display_mode *mode)
557{
558 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
559 struct nouveau_connector *nv_connector = nouveau_connector(connector);
560 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
561 unsigned min_clock = 25000, max_clock = min_clock;
562 unsigned clock = mode->clock;
563
564 switch (nv_encoder->dcb->type) {
565 case OUTPUT_LVDS:
566 BUG_ON(!nv_connector->native_mode);
567 if (mode->hdisplay > nv_connector->native_mode->hdisplay ||
568 mode->vdisplay > nv_connector->native_mode->vdisplay)
569 return MODE_PANEL;
570
571 min_clock = 0;
572 max_clock = 400000;
573 break;
574 case OUTPUT_TMDS:
575 if ((dev_priv->card_type >= NV_50 && !nouveau_duallink) ||
576 (dev_priv->card_type < NV_50 &&
577 !nv_encoder->dcb->duallink_possible))
578 max_clock = 165000;
579 else
580 max_clock = 330000;
581 break;
582 case OUTPUT_ANALOG:
583 max_clock = nv_encoder->dcb->crtconf.maxfreq;
584 if (!max_clock)
585 max_clock = 350000;
586 break;
587 case OUTPUT_TV:
588 return get_slave_funcs(nv_encoder)->
589 mode_valid(to_drm_encoder(nv_encoder), mode);
590 case OUTPUT_DP:
591 if (nv_encoder->dp.link_bw == DP_LINK_BW_2_7)
592 max_clock = nv_encoder->dp.link_nr * 270000;
593 else
594 max_clock = nv_encoder->dp.link_nr * 162000;
595
596 clock *= 3;
597 break;
598 }
599
600 if (clock < min_clock)
601 return MODE_CLOCK_LOW;
602
603 if (clock > max_clock)
604 return MODE_CLOCK_HIGH;
605
606 return MODE_OK;
607}
608
609static struct drm_encoder *
610nouveau_connector_best_encoder(struct drm_connector *connector)
611{
612 struct nouveau_connector *nv_connector = nouveau_connector(connector);
613
614 if (nv_connector->detected_encoder)
615 return to_drm_encoder(nv_connector->detected_encoder);
616
617 return NULL;
618}
619
620static const struct drm_connector_helper_funcs
621nouveau_connector_helper_funcs = {
622 .get_modes = nouveau_connector_get_modes,
623 .mode_valid = nouveau_connector_mode_valid,
624 .best_encoder = nouveau_connector_best_encoder,
625};
626
627static const struct drm_connector_funcs
628nouveau_connector_funcs = {
629 .dpms = drm_helper_connector_dpms,
630 .save = NULL,
631 .restore = NULL,
632 .detect = nouveau_connector_detect,
633 .destroy = nouveau_connector_destroy,
634 .fill_modes = drm_helper_probe_single_connector_modes,
635 .set_property = nouveau_connector_set_property,
636 .force = nouveau_connector_force
637};
638
639static int
640nouveau_connector_create_lvds(struct drm_device *dev,
641 struct drm_connector *connector)
642{
643 struct nouveau_connector *nv_connector = nouveau_connector(connector);
644 struct drm_nouveau_private *dev_priv = dev->dev_private;
645 struct nouveau_i2c_chan *i2c = NULL;
646 struct nouveau_encoder *nv_encoder;
647 struct drm_display_mode native, *mode, *temp;
648 bool dummy, if_is_24bit = false;
649 int ret, flags;
650
651 nv_encoder = find_encoder_by_type(connector, OUTPUT_LVDS);
652 if (!nv_encoder)
653 return -ENODEV;
654
655 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &if_is_24bit);
656 if (ret) {
657 NV_ERROR(dev, "Error parsing LVDS table, disabling LVDS\n");
658 return ret;
659 }
660 nv_connector->use_dithering = !if_is_24bit;
661
662 /* Firstly try getting EDID over DDC, if allowed and I2C channel
663 * is available.
664 */
665 if (!dev_priv->VBIOS.pub.fp_no_ddc && nv_encoder->dcb->i2c_index < 0xf)
666 i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
667
668 if (i2c) {
669 nouveau_connector_ddc_prepare(connector, &flags);
670 nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
671 nouveau_connector_ddc_finish(connector, flags);
672 }
673
674 /* If no EDID found above, and the VBIOS indicates a hardcoded
675 * modeline is avalilable for the panel, set it as the panel's
676 * native mode and exit.
677 */
678 if (!nv_connector->edid && nouveau_bios_fp_mode(dev, &native) &&
679 (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
680 dev_priv->VBIOS.pub.fp_no_ddc)) {
681 nv_connector->native_mode = drm_mode_duplicate(dev, &native);
682 goto out;
683 }
684
685 /* Still nothing, some VBIOS images have a hardcoded EDID block
686 * stored for the panel stored in them.
687 */
688 if (!nv_connector->edid && !nv_connector->native_mode &&
689 !dev_priv->VBIOS.pub.fp_no_ddc) {
690 nv_connector->edid =
691 (struct edid *)nouveau_bios_embedded_edid(dev);
692 }
693
694 if (!nv_connector->edid)
695 goto out;
696
697 /* We didn't find/use a panel mode from the VBIOS, so parse the EDID
698 * block and look for the preferred mode there.
699 */
700 ret = drm_add_edid_modes(connector, nv_connector->edid);
701 if (ret == 0)
702 goto out;
703 nv_connector->detected_encoder = nv_encoder;
704 nv_connector->native_mode = nouveau_connector_native_mode(nv_connector);
705 list_for_each_entry_safe(mode, temp, &connector->probed_modes, head)
706 drm_mode_remove(connector, mode);
707
708out:
709 if (!nv_connector->native_mode) {
710 NV_ERROR(dev, "LVDS present in DCB table, but couldn't "
711 "determine its native mode. Disabling.\n");
712 return -ENODEV;
713 }
714
715 drm_mode_connector_update_edid_property(connector, nv_connector->edid);
716 return 0;
717}
718
719int
720nouveau_connector_create(struct drm_device *dev, int index, int type)
721{
722 struct drm_nouveau_private *dev_priv = dev->dev_private;
723 struct nouveau_connector *nv_connector = NULL;
724 struct drm_connector *connector;
725 struct drm_encoder *encoder;
726 int ret;
727
ef2bb506 728 NV_DEBUG_KMS(dev, "\n");
6ee73861
BS		 729
730 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
731 if (!nv_connector)
732 return -ENOMEM;
733 nv_connector->dcb = nouveau_bios_connector_entry(dev, index);
734 connector = &nv_connector->base;
735
736 switch (type) {
737 case DRM_MODE_CONNECTOR_VGA:
738 NV_INFO(dev, "Detected a VGA connector\n");
739 break;
740 case DRM_MODE_CONNECTOR_DVID:
741 NV_INFO(dev, "Detected a DVI-D connector\n");
742 break;
743 case DRM_MODE_CONNECTOR_DVII:
744 NV_INFO(dev, "Detected a DVI-I connector\n");
745 break;
746 case DRM_MODE_CONNECTOR_LVDS:
747 NV_INFO(dev, "Detected a LVDS connector\n");
748 break;
749 case DRM_MODE_CONNECTOR_TV:
750 NV_INFO(dev, "Detected a TV connector\n");
751 break;
752 case DRM_MODE_CONNECTOR_DisplayPort:
753 NV_INFO(dev, "Detected a DisplayPort connector\n");
754 break;
755 default:
756 NV_ERROR(dev, "Unknown connector, this is not good.\n");
757 break;
758 }
759
760 /* defaults, will get overridden in detect() */
761 connector->interlace_allowed = false;
762 connector->doublescan_allowed = false;
763
764 drm_connector_init(dev, connector, &nouveau_connector_funcs, type);
765 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
766
767 /* Init DVI-I specific properties */
768 if (type == DRM_MODE_CONNECTOR_DVII) {
769 drm_mode_create_dvi_i_properties(dev);
770 drm_connector_attach_property(connector, dev->mode_config.dvi_i_subconnector_property, 0);
771 drm_connector_attach_property(connector, dev->mode_config.dvi_i_select_subconnector_property, 0);
772 }
773
774 if (type != DRM_MODE_CONNECTOR_LVDS)
775 nv_connector->use_dithering = false;
776
777 if (type == DRM_MODE_CONNECTOR_DVID ||
778 type == DRM_MODE_CONNECTOR_DVII ||
779 type == DRM_MODE_CONNECTOR_LVDS ||
780 type == DRM_MODE_CONNECTOR_DisplayPort) {
781 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
782
783 drm_connector_attach_property(connector, dev->mode_config.scaling_mode_property,
784 nv_connector->scaling_mode);
785 drm_connector_attach_property(connector, dev->mode_config.dithering_mode_property,
786 nv_connector->use_dithering ? DRM_MODE_DITHERING_ON
787 : DRM_MODE_DITHERING_OFF);
788
789 } else {
790 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
791
792 if (type == DRM_MODE_CONNECTOR_VGA &&
793 dev_priv->card_type >= NV_50) {
794 drm_connector_attach_property(connector,
795 dev->mode_config.scaling_mode_property,
796 nv_connector->scaling_mode);
797 }
798 }
799
800 /* attach encoders */
801 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
802 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
803
804 if (nv_encoder->dcb->connector != index)
805 continue;
806
807 if (get_slave_funcs(nv_encoder))
808 get_slave_funcs(nv_encoder)->create_resources(encoder, connector);
809
810 drm_mode_connector_attach_encoder(connector, encoder);
811 }
812
813 drm_sysfs_connector_add(connector);
814
815 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
816 ret = nouveau_connector_create_lvds(dev, connector);
817 if (ret) {
818 connector->funcs->destroy(connector);
819 return ret;
820 }
821 }
822
823 return 0;
824}
Linux 6.x block layer and io_uring tree(s)