projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
drm/nouveau: fix edid memleak in nouveau_connector
[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{
c8ebe275
XC		 86 struct nouveau_connector *nv_connector =
87 nouveau_connector(drm_connector);
88 struct drm_device *dev = nv_connector->base.dev;
6ee73861 89
ef2bb506 90 NV_DEBUG_KMS(dev, "\n");
6ee73861 91
c8ebe275 92 if (!nv_connector)
6ee73861
BS		 93 return;
94
c8ebe275 95 kfree(nv_connector->edid);
6ee73861
BS		 96 drm_sysfs_connector_remove(drm_connector);
97 drm_connector_cleanup(drm_connector);
98 kfree(drm_connector);
99}
100
101static void
102nouveau_connector_ddc_prepare(struct drm_connector *connector, int *flags)
103{
104 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
105
106 if (dev_priv->card_type >= NV_50)
107 return;
108
109 *flags = 0;
110 if (NVLockVgaCrtcs(dev_priv->dev, false))
111 *flags |= 1;
112 if (nv_heads_tied(dev_priv->dev))
113 *flags |= 2;
114
115 if (*flags & 2)
116 NVSetOwner(dev_priv->dev, 0); /* necessary? */
117}
118
119static void
120nouveau_connector_ddc_finish(struct drm_connector *connector, int flags)
121{
122 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
123
124 if (dev_priv->card_type >= NV_50)
125 return;
126
127 if (flags & 2)
128 NVSetOwner(dev_priv->dev, 4);
129 if (flags & 1)
130 NVLockVgaCrtcs(dev_priv->dev, true);
131}
132
133static struct nouveau_i2c_chan *
134nouveau_connector_ddc_detect(struct drm_connector *connector,
135 struct nouveau_encoder **pnv_encoder)
136{
137 struct drm_device *dev = connector->dev;
138 uint8_t out_buf[] = { 0x0, 0x0}, buf[2];
139 int ret, flags, i;
140
141 struct i2c_msg msgs[] = {
142 {
143 .addr = 0x50,
144 .flags = 0,
145 .len = 1,
146 .buf = out_buf,
147 },
148 {
149 .addr = 0x50,
150 .flags = I2C_M_RD,
151 .len = 1,
152 .buf = buf,
153 }
154 };
155
156 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
157 struct nouveau_i2c_chan *i2c = NULL;
158 struct nouveau_encoder *nv_encoder;
159 struct drm_mode_object *obj;
160 int id;
161
162 id = connector->encoder_ids[i];
163 if (!id)
164 break;
165
166 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
167 if (!obj)
168 continue;
169 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
170
171 if (nv_encoder->dcb->i2c_index < 0xf)
172 i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
173 if (!i2c)
174 continue;
175
176 nouveau_connector_ddc_prepare(connector, &flags);
177 ret = i2c_transfer(&i2c->adapter, msgs, 2);
178 nouveau_connector_ddc_finish(connector, flags);
179
180 if (ret == 2) {
181 *pnv_encoder = nv_encoder;
182 return i2c;
183 }
184 }
185
186 return NULL;
187}
188
189static void
190nouveau_connector_set_encoder(struct drm_connector *connector,
191 struct nouveau_encoder *nv_encoder)
192{
193 struct nouveau_connector *nv_connector = nouveau_connector(connector);
194 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
195 struct drm_device *dev = connector->dev;
196
197 if (nv_connector->detected_encoder == nv_encoder)
198 return;
199 nv_connector->detected_encoder = nv_encoder;
200
201 if (nv_encoder->dcb->type == OUTPUT_LVDS ||
202 nv_encoder->dcb->type == OUTPUT_TMDS) {
203 connector->doublescan_allowed = false;
204 connector->interlace_allowed = false;
205 } else {
206 connector->doublescan_allowed = true;
207 if (dev_priv->card_type == NV_20 ||
208 (dev_priv->card_type == NV_10 &&
209 (dev->pci_device & 0x0ff0) != 0x0100 &&
210 (dev->pci_device & 0x0ff0) != 0x0150))
211 /* HW is broken */
212 connector->interlace_allowed = false;
213 else
214 connector->interlace_allowed = true;
215 }
216
217 if (connector->connector_type == DRM_MODE_CONNECTOR_DVII) {
218 drm_connector_property_set_value(connector,
219 dev->mode_config.dvi_i_subconnector_property,
220 nv_encoder->dcb->type == OUTPUT_TMDS ?
221 DRM_MODE_SUBCONNECTOR_DVID :
222 DRM_MODE_SUBCONNECTOR_DVIA);
223 }
224}
225
226static enum drm_connector_status
227nouveau_connector_detect(struct drm_connector *connector)
228{
229 struct drm_device *dev = connector->dev;
230 struct nouveau_connector *nv_connector = nouveau_connector(connector);
231 struct nouveau_encoder *nv_encoder = NULL;
232 struct nouveau_i2c_chan *i2c;
233 int type, flags;
234
235 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
236 nv_encoder = find_encoder_by_type(connector, OUTPUT_LVDS);
237 if (nv_encoder && nv_connector->native_mode) {
238 nouveau_connector_set_encoder(connector, nv_encoder);
239 return connector_status_connected;
240 }
241
c8ebe275
XC		 242 kfree(nv_connector->edid);
243 nv_connector->edid = NULL;
244
6ee73861
BS		 245 i2c = nouveau_connector_ddc_detect(connector, &nv_encoder);
246 if (i2c) {
247 nouveau_connector_ddc_prepare(connector, &flags);
248 nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
249 nouveau_connector_ddc_finish(connector, flags);
250 drm_mode_connector_update_edid_property(connector,
251 nv_connector->edid);
252 if (!nv_connector->edid) {
253 NV_ERROR(dev, "DDC responded, but no EDID for %s\n",
254 drm_get_connector_name(connector));
255 return connector_status_disconnected;
256 }
257
258 if (nv_encoder->dcb->type == OUTPUT_DP &&
259 !nouveau_dp_detect(to_drm_encoder(nv_encoder))) {
260 NV_ERROR(dev, "Detected %s, but failed init\n",
261 drm_get_connector_name(connector));
262 return connector_status_disconnected;
263 }
264
265 /* Override encoder type for DVI-I based on whether EDID
266 * says the display is digital or analog, both use the
267 * same i2c channel so the value returned from ddc_detect
268 * isn't necessarily correct.
269 */
270 if (connector->connector_type == DRM_MODE_CONNECTOR_DVII) {
271 if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
272 type = OUTPUT_TMDS;
273 else
274 type = OUTPUT_ANALOG;
275
276 nv_encoder = find_encoder_by_type(connector, type);
277 if (!nv_encoder) {
278 NV_ERROR(dev, "Detected %d encoder on %s, "
279 "but no object!\n", type,
280 drm_get_connector_name(connector));
281 return connector_status_disconnected;
282 }
283 }
284
285 nouveau_connector_set_encoder(connector, nv_encoder);
286 return connector_status_connected;
287 }
288
289 nv_encoder = find_encoder_by_type(connector, OUTPUT_ANALOG);
290 if (!nv_encoder)
291 nv_encoder = find_encoder_by_type(connector, OUTPUT_TV);
292 if (nv_encoder) {
293 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
294 struct drm_encoder_helper_funcs *helper =
295 encoder->helper_private;
296
297 if (helper->detect(encoder, connector) ==
298 connector_status_connected) {
299 nouveau_connector_set_encoder(connector, nv_encoder);
300 return connector_status_connected;
301 }
302
303 }
304
305 return connector_status_disconnected;
306}
307
308static void
309nouveau_connector_force(struct drm_connector *connector)
310{
311 struct drm_device *dev = connector->dev;
312 struct nouveau_encoder *nv_encoder;
313 int type;
314
315 if (connector->connector_type == DRM_MODE_CONNECTOR_DVII) {
316 if (connector->force == DRM_FORCE_ON_DIGITAL)
317 type = OUTPUT_TMDS;
318 else
319 type = OUTPUT_ANALOG;
320 } else
321 type = OUTPUT_ANY;
322
323 nv_encoder = find_encoder_by_type(connector, type);
324 if (!nv_encoder) {
325 NV_ERROR(dev, "can't find encoder to force %s on!\n",
326 drm_get_connector_name(connector));
327 connector->status = connector_status_disconnected;
328 return;
329 }
330
331 nouveau_connector_set_encoder(connector, nv_encoder);
332}
333
334static int
335nouveau_connector_set_property(struct drm_connector *connector,
336 struct drm_property *property, uint64_t value)
337{
338 struct nouveau_connector *nv_connector = nouveau_connector(connector);
339 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
340 struct drm_device *dev = connector->dev;
341 int ret;
342
343 /* Scaling mode */
344 if (property == dev->mode_config.scaling_mode_property) {
345 struct nouveau_crtc *nv_crtc = NULL;
346 bool modeset = false;
347
348 switch (value) {
349 case DRM_MODE_SCALE_NONE:
350 case DRM_MODE_SCALE_FULLSCREEN:
351 case DRM_MODE_SCALE_CENTER:
352 case DRM_MODE_SCALE_ASPECT:
353 break;
354 default:
355 return -EINVAL;
356 }
357
358 /* LVDS always needs gpu scaling */
359 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS &&
360 value == DRM_MODE_SCALE_NONE)
361 return -EINVAL;
362
363 /* Changing between GPU and panel scaling requires a full
364 * modeset
365 */
366 if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) ||
367 (value == DRM_MODE_SCALE_NONE))
368 modeset = true;
369 nv_connector->scaling_mode = value;
370
371 if (connector->encoder && connector->encoder->crtc)
372 nv_crtc = nouveau_crtc(connector->encoder->crtc);
373 if (!nv_crtc)
374 return 0;
375
376 if (modeset || !nv_crtc->set_scale) {
377 ret = drm_crtc_helper_set_mode(&nv_crtc->base,
378 &nv_crtc->base.mode,
379 nv_crtc->base.x,
380 nv_crtc->base.y, NULL);
381 if (!ret)
382 return -EINVAL;
383 } else {
384 ret = nv_crtc->set_scale(nv_crtc, value, true);
385 if (ret)
386 return ret;
387 }
388
389 return 0;
390 }
391
392 /* Dithering */
393 if (property == dev->mode_config.dithering_mode_property) {
394 struct nouveau_crtc *nv_crtc = NULL;
395
396 if (value == DRM_MODE_DITHERING_ON)
397 nv_connector->use_dithering = true;
398 else
399 nv_connector->use_dithering = false;
400
401 if (connector->encoder && connector->encoder->crtc)
402 nv_crtc = nouveau_crtc(connector->encoder->crtc);
403
404 if (!nv_crtc || !nv_crtc->set_dither)
405 return 0;
406
407 return nv_crtc->set_dither(nv_crtc, nv_connector->use_dithering,
408 true);
409 }
410
411 if (nv_encoder && nv_encoder->dcb->type == OUTPUT_TV)
412 return get_slave_funcs(nv_encoder)->
413 set_property(to_drm_encoder(nv_encoder), connector, property, value);
414
415 return -EINVAL;
416}
417
418static struct drm_display_mode *
419nouveau_connector_native_mode(struct nouveau_connector *connector)
420{
421 struct drm_device *dev = connector->base.dev;
422 struct drm_display_mode *mode, *largest = NULL;
423 int high_w = 0, high_h = 0, high_v = 0;
424
425 /* Use preferred mode if there is one.. */
426 list_for_each_entry(mode, &connector->base.probed_modes, head) {
427 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
ef2bb506 428 NV_DEBUG_KMS(dev, "native mode from preferred\n");
6ee73861
BS		 429 return drm_mode_duplicate(dev, mode);
430 }
431 }
432
433 /* Otherwise, take the resolution with the largest width, then height,
434 * then vertical refresh
435 */
436 list_for_each_entry(mode, &connector->base.probed_modes, head) {
437 if (mode->hdisplay < high_w)
438 continue;
439
440 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
441 continue;
442
443 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
444 mode->vrefresh < high_v)
445 continue;
446
447 high_w = mode->hdisplay;
448 high_h = mode->vdisplay;
449 high_v = mode->vrefresh;
450 largest = mode;
451 }
452
ef2bb506 453 NV_DEBUG_KMS(dev, "native mode from largest: %dx%d@%d\n",
6ee73861
BS		 454 high_w, high_h, high_v);
455 return largest ? drm_mode_duplicate(dev, largest) : NULL;
456}
457
458struct moderec {
459 int hdisplay;
460 int vdisplay;
461};
462
463static struct moderec scaler_modes[] = {
464 { 1920, 1200 },
465 { 1920, 1080 },
466 { 1680, 1050 },
467 { 1600, 1200 },
468 { 1400, 1050 },
469 { 1280, 1024 },
470 { 1280, 960 },
471 { 1152, 864 },
472 { 1024, 768 },
473 { 800, 600 },
474 { 720, 400 },
475 { 640, 480 },
476 { 640, 400 },
477 { 640, 350 },
478 {}
479};
480
481static int
482nouveau_connector_scaler_modes_add(struct drm_connector *connector)
483{
484 struct nouveau_connector *nv_connector = nouveau_connector(connector);
485 struct drm_display_mode *native = nv_connector->native_mode, *m;
486 struct drm_device *dev = connector->dev;
487 struct moderec *mode = &scaler_modes[0];
488 int modes = 0;
489
490 if (!native)
491 return 0;
492
493 while (mode->hdisplay) {
494 if (mode->hdisplay <= native->hdisplay &&
495 mode->vdisplay <= native->vdisplay) {
496 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
497 drm_mode_vrefresh(native), false,
498 false, false);
499 if (!m)
500 continue;
501
502 m->type |= DRM_MODE_TYPE_DRIVER;
503
504 drm_mode_probed_add(connector, m);
505 modes++;
506 }
507
508 mode++;
509 }
510
511 return modes;
512}
513
514static int
515nouveau_connector_get_modes(struct drm_connector *connector)
516{
517 struct drm_device *dev = connector->dev;
518 struct nouveau_connector *nv_connector = nouveau_connector(connector);
519 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
520 int ret = 0;
521
522 /* If we're not LVDS, destroy the previous native mode, the attached
523 * monitor could have changed.
524 */
525 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS &&
526 nv_connector->native_mode) {
527 drm_mode_destroy(dev, nv_connector->native_mode);
528 nv_connector->native_mode = NULL;
529 }
530
531 if (nv_connector->edid)
532 ret = drm_add_edid_modes(connector, nv_connector->edid);
533
534 /* Find the native mode if this is a digital panel, if we didn't
535 * find any modes through DDC previously add the native mode to
536 * the list of modes.
537 */
538 if (!nv_connector->native_mode)
539 nv_connector->native_mode =
540 nouveau_connector_native_mode(nv_connector);
541 if (ret == 0 && nv_connector->native_mode) {
542 struct drm_display_mode *mode;
543
544 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
545 drm_mode_probed_add(connector, mode);
546 ret = 1;
547 }
548
549 if (nv_encoder->dcb->type == OUTPUT_TV)
550 ret = get_slave_funcs(nv_encoder)->
551 get_modes(to_drm_encoder(nv_encoder), connector);
552
553 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
554 ret += nouveau_connector_scaler_modes_add(connector);
555
556 return ret;
557}
558
559static int
560nouveau_connector_mode_valid(struct drm_connector *connector,
561 struct drm_display_mode *mode)
562{
563 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
564 struct nouveau_connector *nv_connector = nouveau_connector(connector);
565 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
566 unsigned min_clock = 25000, max_clock = min_clock;
567 unsigned clock = mode->clock;
568
569 switch (nv_encoder->dcb->type) {
570 case OUTPUT_LVDS:
571 BUG_ON(!nv_connector->native_mode);
572 if (mode->hdisplay > nv_connector->native_mode->hdisplay ||
573 mode->vdisplay > nv_connector->native_mode->vdisplay)
574 return MODE_PANEL;
575
576 min_clock = 0;
577 max_clock = 400000;
578 break;
579 case OUTPUT_TMDS:
580 if ((dev_priv->card_type >= NV_50 && !nouveau_duallink) ||
581 (dev_priv->card_type < NV_50 &&
582 !nv_encoder->dcb->duallink_possible))
583 max_clock = 165000;
584 else
585 max_clock = 330000;
586 break;
587 case OUTPUT_ANALOG:
588 max_clock = nv_encoder->dcb->crtconf.maxfreq;
589 if (!max_clock)
590 max_clock = 350000;
591 break;
592 case OUTPUT_TV:
593 return get_slave_funcs(nv_encoder)->
594 mode_valid(to_drm_encoder(nv_encoder), mode);
595 case OUTPUT_DP:
596 if (nv_encoder->dp.link_bw == DP_LINK_BW_2_7)
597 max_clock = nv_encoder->dp.link_nr * 270000;
598 else
599 max_clock = nv_encoder->dp.link_nr * 162000;
600
601 clock *= 3;
602 break;
603 }
604
605 if (clock < min_clock)
606 return MODE_CLOCK_LOW;
607
608 if (clock > max_clock)
609 return MODE_CLOCK_HIGH;
610
611 return MODE_OK;
612}
613
614static struct drm_encoder *
615nouveau_connector_best_encoder(struct drm_connector *connector)
616{
617 struct nouveau_connector *nv_connector = nouveau_connector(connector);
618
619 if (nv_connector->detected_encoder)
620 return to_drm_encoder(nv_connector->detected_encoder);
621
622 return NULL;
623}
624
625static const struct drm_connector_helper_funcs
626nouveau_connector_helper_funcs = {
627 .get_modes = nouveau_connector_get_modes,
628 .mode_valid = nouveau_connector_mode_valid,
629 .best_encoder = nouveau_connector_best_encoder,
630};
631
632static const struct drm_connector_funcs
633nouveau_connector_funcs = {
634 .dpms = drm_helper_connector_dpms,
635 .save = NULL,
636 .restore = NULL,
637 .detect = nouveau_connector_detect,
638 .destroy = nouveau_connector_destroy,
639 .fill_modes = drm_helper_probe_single_connector_modes,
640 .set_property = nouveau_connector_set_property,
641 .force = nouveau_connector_force
642};
643
644static int
645nouveau_connector_create_lvds(struct drm_device *dev,
646 struct drm_connector *connector)
647{
648 struct nouveau_connector *nv_connector = nouveau_connector(connector);
649 struct drm_nouveau_private *dev_priv = dev->dev_private;
650 struct nouveau_i2c_chan *i2c = NULL;
651 struct nouveau_encoder *nv_encoder;
652 struct drm_display_mode native, *mode, *temp;
653 bool dummy, if_is_24bit = false;
654 int ret, flags;
655
656 nv_encoder = find_encoder_by_type(connector, OUTPUT_LVDS);
657 if (!nv_encoder)
658 return -ENODEV;
659
660 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &if_is_24bit);
661 if (ret) {
662 NV_ERROR(dev, "Error parsing LVDS table, disabling LVDS\n");
663 return ret;
664 }
665 nv_connector->use_dithering = !if_is_24bit;
666
667 /* Firstly try getting EDID over DDC, if allowed and I2C channel
668 * is available.
669 */
670 if (!dev_priv->VBIOS.pub.fp_no_ddc && nv_encoder->dcb->i2c_index < 0xf)
671 i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
672
673 if (i2c) {
674 nouveau_connector_ddc_prepare(connector, &flags);
675 nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
676 nouveau_connector_ddc_finish(connector, flags);
677 }
678
679 /* If no EDID found above, and the VBIOS indicates a hardcoded
680 * modeline is avalilable for the panel, set it as the panel's
681 * native mode and exit.
682 */
683 if (!nv_connector->edid && nouveau_bios_fp_mode(dev, &native) &&
684 (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
685 dev_priv->VBIOS.pub.fp_no_ddc)) {
686 nv_connector->native_mode = drm_mode_duplicate(dev, &native);
687 goto out;
688 }
689
690 /* Still nothing, some VBIOS images have a hardcoded EDID block
691 * stored for the panel stored in them.
692 */
693 if (!nv_connector->edid && !nv_connector->native_mode &&
694 !dev_priv->VBIOS.pub.fp_no_ddc) {
c8ebe275 695 struct edid *edid =
6ee73861 696 (struct edid *)nouveau_bios_embedded_edid(dev);
c8ebe275
XC		 697 if (edid) {
698 nv_connector->edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
699 *(nv_connector->edid) = *edid;
700 }
6ee73861
BS		 701 }
702
703 if (!nv_connector->edid)
704 goto out;
705
706 /* We didn't find/use a panel mode from the VBIOS, so parse the EDID
707 * block and look for the preferred mode there.
708 */
709 ret = drm_add_edid_modes(connector, nv_connector->edid);
710 if (ret == 0)
711 goto out;
712 nv_connector->detected_encoder = nv_encoder;
713 nv_connector->native_mode = nouveau_connector_native_mode(nv_connector);
714 list_for_each_entry_safe(mode, temp, &connector->probed_modes, head)
715 drm_mode_remove(connector, mode);
716
717out:
718 if (!nv_connector->native_mode) {
719 NV_ERROR(dev, "LVDS present in DCB table, but couldn't "
720 "determine its native mode. Disabling.\n");
721 return -ENODEV;
722 }
723
724 drm_mode_connector_update_edid_property(connector, nv_connector->edid);
725 return 0;
726}
727
728int
729nouveau_connector_create(struct drm_device *dev, int index, int type)
730{
731 struct drm_nouveau_private *dev_priv = dev->dev_private;
732 struct nouveau_connector *nv_connector = NULL;
733 struct drm_connector *connector;
734 struct drm_encoder *encoder;
735 int ret;
736
ef2bb506 737 NV_DEBUG_KMS(dev, "\n");
6ee73861
BS		 738
739 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
740 if (!nv_connector)
741 return -ENOMEM;
742 nv_connector->dcb = nouveau_bios_connector_entry(dev, index);
743 connector = &nv_connector->base;
744
745 switch (type) {
746 case DRM_MODE_CONNECTOR_VGA:
747 NV_INFO(dev, "Detected a VGA connector\n");
748 break;
749 case DRM_MODE_CONNECTOR_DVID:
750 NV_INFO(dev, "Detected a DVI-D connector\n");
751 break;
752 case DRM_MODE_CONNECTOR_DVII:
753 NV_INFO(dev, "Detected a DVI-I connector\n");
754 break;
755 case DRM_MODE_CONNECTOR_LVDS:
756 NV_INFO(dev, "Detected a LVDS connector\n");
757 break;
758 case DRM_MODE_CONNECTOR_TV:
759 NV_INFO(dev, "Detected a TV connector\n");
760 break;
761 case DRM_MODE_CONNECTOR_DisplayPort:
762 NV_INFO(dev, "Detected a DisplayPort connector\n");
763 break;
764 default:
765 NV_ERROR(dev, "Unknown connector, this is not good.\n");
766 break;
767 }
768
769 /* defaults, will get overridden in detect() */
770 connector->interlace_allowed = false;
771 connector->doublescan_allowed = false;
772
773 drm_connector_init(dev, connector, &nouveau_connector_funcs, type);
774 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
775
776 /* Init DVI-I specific properties */
777 if (type == DRM_MODE_CONNECTOR_DVII) {
778 drm_mode_create_dvi_i_properties(dev);
779 drm_connector_attach_property(connector, dev->mode_config.dvi_i_subconnector_property, 0);
780 drm_connector_attach_property(connector, dev->mode_config.dvi_i_select_subconnector_property, 0);
781 }
782
783 if (type != DRM_MODE_CONNECTOR_LVDS)
784 nv_connector->use_dithering = false;
785
786 if (type == DRM_MODE_CONNECTOR_DVID ||
787 type == DRM_MODE_CONNECTOR_DVII ||
788 type == DRM_MODE_CONNECTOR_LVDS ||
789 type == DRM_MODE_CONNECTOR_DisplayPort) {
790 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
791
792 drm_connector_attach_property(connector, dev->mode_config.scaling_mode_property,
793 nv_connector->scaling_mode);
794 drm_connector_attach_property(connector, dev->mode_config.dithering_mode_property,
795 nv_connector->use_dithering ? DRM_MODE_DITHERING_ON
796 : DRM_MODE_DITHERING_OFF);
797
798 } else {
799 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
800
801 if (type == DRM_MODE_CONNECTOR_VGA &&
802 dev_priv->card_type >= NV_50) {
803 drm_connector_attach_property(connector,
804 dev->mode_config.scaling_mode_property,
805 nv_connector->scaling_mode);
806 }
807 }
808
809 /* attach encoders */
810 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
811 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
812
813 if (nv_encoder->dcb->connector != index)
814 continue;
815
816 if (get_slave_funcs(nv_encoder))
817 get_slave_funcs(nv_encoder)->create_resources(encoder, connector);
818
819 drm_mode_connector_attach_encoder(connector, encoder);
820 }
821
822 drm_sysfs_connector_add(connector);
823
824 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
825 ret = nouveau_connector_create_lvds(dev, connector);
826 if (ret) {
827 connector->funcs->destroy(connector);
828 return ret;
829 }
830 }
831
832 return 0;
833}
Linux 6.x block layer and io_uring tree(s)