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[mirror_ubuntu-hirsute-kernel.git] / drivers / gpu / drm / nouveau / nouveau_connector.c
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 <acpi/button.h>
28
29 #include <linux/pm_runtime.h>
30 #include <linux/vga_switcheroo.h>
31
32 #include <drm/drm_atomic_helper.h>
33 #include <drm/drm_edid.h>
34 #include <drm/drm_crtc_helper.h>
35 #include <drm/drm_probe_helper.h>
36 #include <drm/drm_atomic.h>
37
38 #include "nouveau_reg.h"
39 #include "nouveau_drv.h"
40 #include "dispnv04/hw.h"
41 #include "nouveau_acpi.h"
42
43 #include "nouveau_display.h"
44 #include "nouveau_connector.h"
45 #include "nouveau_encoder.h"
46 #include "nouveau_crtc.h"
47
48 #include <nvif/class.h>
49 #include <nvif/cl0046.h>
50 #include <nvif/event.h>
51
52 struct drm_display_mode *
53 nouveau_conn_native_mode(struct drm_connector *connector)
54 {
55 const struct drm_connector_helper_funcs *helper = connector->helper_private;
56 struct nouveau_drm *drm = nouveau_drm(connector->dev);
57 struct drm_device *dev = connector->dev;
58 struct drm_display_mode *mode, *largest = NULL;
59 int high_w = 0, high_h = 0, high_v = 0;
60
61 list_for_each_entry(mode, &connector->probed_modes, head) {
62 mode->vrefresh = drm_mode_vrefresh(mode);
63 if (helper->mode_valid(connector, mode) != MODE_OK ||
64 (mode->flags & DRM_MODE_FLAG_INTERLACE))
65 continue;
66
67 /* Use preferred mode if there is one.. */
68 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
69 NV_DEBUG(drm, "native mode from preferred\n");
70 return drm_mode_duplicate(dev, mode);
71 }
72
73 /* Otherwise, take the resolution with the largest width, then
74 * height, then vertical refresh
75 */
76 if (mode->hdisplay < high_w)
77 continue;
78
79 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
80 continue;
81
82 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
83 mode->vrefresh < high_v)
84 continue;
85
86 high_w = mode->hdisplay;
87 high_h = mode->vdisplay;
88 high_v = mode->vrefresh;
89 largest = mode;
90 }
91
92 NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
93 high_w, high_h, high_v);
94 return largest ? drm_mode_duplicate(dev, largest) : NULL;
95 }
96
97 int
98 nouveau_conn_atomic_get_property(struct drm_connector *connector,
99 const struct drm_connector_state *state,
100 struct drm_property *property, u64 *val)
101 {
102 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
103 struct nouveau_display *disp = nouveau_display(connector->dev);
104 struct drm_device *dev = connector->dev;
105
106 if (property == dev->mode_config.scaling_mode_property)
107 *val = asyc->scaler.mode;
108 else if (property == disp->underscan_property)
109 *val = asyc->scaler.underscan.mode;
110 else if (property == disp->underscan_hborder_property)
111 *val = asyc->scaler.underscan.hborder;
112 else if (property == disp->underscan_vborder_property)
113 *val = asyc->scaler.underscan.vborder;
114 else if (property == disp->dithering_mode)
115 *val = asyc->dither.mode;
116 else if (property == disp->dithering_depth)
117 *val = asyc->dither.depth;
118 else if (property == disp->vibrant_hue_property)
119 *val = asyc->procamp.vibrant_hue;
120 else if (property == disp->color_vibrance_property)
121 *val = asyc->procamp.color_vibrance;
122 else
123 return -EINVAL;
124
125 return 0;
126 }
127
128 int
129 nouveau_conn_atomic_set_property(struct drm_connector *connector,
130 struct drm_connector_state *state,
131 struct drm_property *property, u64 val)
132 {
133 struct drm_device *dev = connector->dev;
134 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
135 struct nouveau_display *disp = nouveau_display(dev);
136
137 if (property == dev->mode_config.scaling_mode_property) {
138 switch (val) {
139 case DRM_MODE_SCALE_NONE:
140 /* We allow 'None' for EDID modes, even on a fixed
141 * panel (some exist with support for lower refresh
142 * rates, which people might want to use for power-
143 * saving purposes).
144 *
145 * Non-EDID modes will force the use of GPU scaling
146 * to the native mode regardless of this setting.
147 */
148 switch (connector->connector_type) {
149 case DRM_MODE_CONNECTOR_LVDS:
150 case DRM_MODE_CONNECTOR_eDP:
151 /* ... except prior to G80, where the code
152 * doesn't support such things.
153 */
154 if (disp->disp.object.oclass < NV50_DISP)
155 return -EINVAL;
156 break;
157 default:
158 break;
159 }
160 case DRM_MODE_SCALE_FULLSCREEN:
161 case DRM_MODE_SCALE_CENTER:
162 case DRM_MODE_SCALE_ASPECT:
163 break;
164 default:
165 return -EINVAL;
166 }
167
168 if (asyc->scaler.mode != val) {
169 asyc->scaler.mode = val;
170 asyc->set.scaler = true;
171 }
172 } else
173 if (property == disp->underscan_property) {
174 if (asyc->scaler.underscan.mode != val) {
175 asyc->scaler.underscan.mode = val;
176 asyc->set.scaler = true;
177 }
178 } else
179 if (property == disp->underscan_hborder_property) {
180 if (asyc->scaler.underscan.hborder != val) {
181 asyc->scaler.underscan.hborder = val;
182 asyc->set.scaler = true;
183 }
184 } else
185 if (property == disp->underscan_vborder_property) {
186 if (asyc->scaler.underscan.vborder != val) {
187 asyc->scaler.underscan.vborder = val;
188 asyc->set.scaler = true;
189 }
190 } else
191 if (property == disp->dithering_mode) {
192 if (asyc->dither.mode != val) {
193 asyc->dither.mode = val;
194 asyc->set.dither = true;
195 }
196 } else
197 if (property == disp->dithering_depth) {
198 if (asyc->dither.mode != val) {
199 asyc->dither.depth = val;
200 asyc->set.dither = true;
201 }
202 } else
203 if (property == disp->vibrant_hue_property) {
204 if (asyc->procamp.vibrant_hue != val) {
205 asyc->procamp.vibrant_hue = val;
206 asyc->set.procamp = true;
207 }
208 } else
209 if (property == disp->color_vibrance_property) {
210 if (asyc->procamp.color_vibrance != val) {
211 asyc->procamp.color_vibrance = val;
212 asyc->set.procamp = true;
213 }
214 } else {
215 return -EINVAL;
216 }
217
218 return 0;
219 }
220
221 void
222 nouveau_conn_atomic_destroy_state(struct drm_connector *connector,
223 struct drm_connector_state *state)
224 {
225 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
226 __drm_atomic_helper_connector_destroy_state(&asyc->state);
227 kfree(asyc);
228 }
229
230 struct drm_connector_state *
231 nouveau_conn_atomic_duplicate_state(struct drm_connector *connector)
232 {
233 struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
234 struct nouveau_conn_atom *asyc;
235 if (!(asyc = kmalloc(sizeof(*asyc), GFP_KERNEL)))
236 return NULL;
237 __drm_atomic_helper_connector_duplicate_state(connector, &asyc->state);
238 asyc->dither = armc->dither;
239 asyc->scaler = armc->scaler;
240 asyc->procamp = armc->procamp;
241 asyc->set.mask = 0;
242 return &asyc->state;
243 }
244
245 void
246 nouveau_conn_reset(struct drm_connector *connector)
247 {
248 struct nouveau_conn_atom *asyc;
249
250 if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL))))
251 return;
252
253 if (connector->state)
254 nouveau_conn_atomic_destroy_state(connector, connector->state);
255 __drm_atomic_helper_connector_reset(connector, &asyc->state);
256 asyc->dither.mode = DITHERING_MODE_AUTO;
257 asyc->dither.depth = DITHERING_DEPTH_AUTO;
258 asyc->scaler.mode = DRM_MODE_SCALE_NONE;
259 asyc->scaler.underscan.mode = UNDERSCAN_OFF;
260 asyc->procamp.color_vibrance = 150;
261 asyc->procamp.vibrant_hue = 90;
262
263 if (nouveau_display(connector->dev)->disp.object.oclass < NV50_DISP) {
264 switch (connector->connector_type) {
265 case DRM_MODE_CONNECTOR_LVDS:
266 /* See note in nouveau_conn_atomic_set_property(). */
267 asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN;
268 break;
269 default:
270 break;
271 }
272 }
273 }
274
275 void
276 nouveau_conn_attach_properties(struct drm_connector *connector)
277 {
278 struct drm_device *dev = connector->dev;
279 struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
280 struct nouveau_display *disp = nouveau_display(dev);
281
282 /* Init DVI-I specific properties. */
283 if (connector->connector_type == DRM_MODE_CONNECTOR_DVII)
284 drm_object_attach_property(&connector->base, dev->mode_config.
285 dvi_i_subconnector_property, 0);
286
287 /* Add overscan compensation options to digital outputs. */
288 if (disp->underscan_property &&
289 (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
290 connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
291 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
292 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) {
293 drm_object_attach_property(&connector->base,
294 disp->underscan_property,
295 UNDERSCAN_OFF);
296 drm_object_attach_property(&connector->base,
297 disp->underscan_hborder_property, 0);
298 drm_object_attach_property(&connector->base,
299 disp->underscan_vborder_property, 0);
300 }
301
302 /* Add hue and saturation options. */
303 if (disp->vibrant_hue_property)
304 drm_object_attach_property(&connector->base,
305 disp->vibrant_hue_property,
306 armc->procamp.vibrant_hue);
307 if (disp->color_vibrance_property)
308 drm_object_attach_property(&connector->base,
309 disp->color_vibrance_property,
310 armc->procamp.color_vibrance);
311
312 /* Scaling mode property. */
313 switch (connector->connector_type) {
314 case DRM_MODE_CONNECTOR_TV:
315 break;
316 case DRM_MODE_CONNECTOR_VGA:
317 if (disp->disp.object.oclass < NV50_DISP)
318 break; /* Can only scale on DFPs. */
319 /* Fall-through. */
320 default:
321 drm_object_attach_property(&connector->base, dev->mode_config.
322 scaling_mode_property,
323 armc->scaler.mode);
324 break;
325 }
326
327 /* Dithering properties. */
328 switch (connector->connector_type) {
329 case DRM_MODE_CONNECTOR_TV:
330 case DRM_MODE_CONNECTOR_VGA:
331 break;
332 default:
333 if (disp->dithering_mode) {
334 drm_object_attach_property(&connector->base,
335 disp->dithering_mode,
336 armc->dither.mode);
337 }
338 if (disp->dithering_depth) {
339 drm_object_attach_property(&connector->base,
340 disp->dithering_depth,
341 armc->dither.depth);
342 }
343 break;
344 }
345 }
346
347 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
348 int nouveau_tv_disable = 0;
349 module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
350
351 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
352 int nouveau_ignorelid = 0;
353 module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
354
355 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
356 int nouveau_duallink = 1;
357 module_param_named(duallink, nouveau_duallink, int, 0400);
358
359 MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
360 int nouveau_hdmimhz = 0;
361 module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400);
362
363 struct nouveau_encoder *
364 find_encoder(struct drm_connector *connector, int type)
365 {
366 struct nouveau_encoder *nv_encoder;
367 struct drm_encoder *enc;
368
369 drm_connector_for_each_possible_encoder(connector, enc) {
370 nv_encoder = nouveau_encoder(enc);
371
372 if (type == DCB_OUTPUT_ANY ||
373 (nv_encoder->dcb && nv_encoder->dcb->type == type))
374 return nv_encoder;
375 }
376
377 return NULL;
378 }
379
380 struct nouveau_connector *
381 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
382 {
383 struct drm_device *dev = to_drm_encoder(encoder)->dev;
384 struct drm_connector *drm_connector;
385
386 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
387 if (drm_connector->encoder == to_drm_encoder(encoder))
388 return nouveau_connector(drm_connector);
389 }
390
391 return NULL;
392 }
393
394 static void
395 nouveau_connector_destroy(struct drm_connector *connector)
396 {
397 struct nouveau_connector *nv_connector = nouveau_connector(connector);
398 nvif_notify_fini(&nv_connector->hpd);
399 kfree(nv_connector->edid);
400 drm_connector_unregister(connector);
401 drm_connector_cleanup(connector);
402 if (nv_connector->aux.transfer) {
403 drm_dp_cec_unregister_connector(&nv_connector->aux);
404 drm_dp_aux_unregister(&nv_connector->aux);
405 kfree(nv_connector->aux.name);
406 }
407 kfree(connector);
408 }
409
410 static struct nouveau_encoder *
411 nouveau_connector_ddc_detect(struct drm_connector *connector)
412 {
413 struct drm_device *dev = connector->dev;
414 struct nouveau_encoder *nv_encoder = NULL, *found = NULL;
415 struct drm_encoder *encoder;
416 int ret;
417 bool switcheroo_ddc = false;
418
419 drm_connector_for_each_possible_encoder(connector, encoder) {
420 nv_encoder = nouveau_encoder(encoder);
421
422 switch (nv_encoder->dcb->type) {
423 case DCB_OUTPUT_DP:
424 ret = nouveau_dp_detect(nv_encoder);
425 if (ret == NOUVEAU_DP_MST)
426 return NULL;
427 else if (ret == NOUVEAU_DP_SST)
428 found = nv_encoder;
429
430 break;
431 case DCB_OUTPUT_LVDS:
432 switcheroo_ddc = !!(vga_switcheroo_handler_flags() &
433 VGA_SWITCHEROO_CAN_SWITCH_DDC);
434 /* fall-through */
435 default:
436 if (!nv_encoder->i2c)
437 break;
438
439 if (switcheroo_ddc)
440 vga_switcheroo_lock_ddc(dev->pdev);
441 if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
442 found = nv_encoder;
443 if (switcheroo_ddc)
444 vga_switcheroo_unlock_ddc(dev->pdev);
445
446 break;
447 }
448 if (found)
449 break;
450 }
451
452 return found;
453 }
454
455 static struct nouveau_encoder *
456 nouveau_connector_of_detect(struct drm_connector *connector)
457 {
458 #ifdef __powerpc__
459 struct drm_device *dev = connector->dev;
460 struct nouveau_connector *nv_connector = nouveau_connector(connector);
461 struct nouveau_encoder *nv_encoder;
462 struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
463
464 if (!dn ||
465 !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
466 (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
467 return NULL;
468
469 for_each_child_of_node(dn, cn) {
470 const char *name = of_get_property(cn, "name", NULL);
471 const void *edid = of_get_property(cn, "EDID", NULL);
472 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
473
474 if (nv_encoder->dcb->i2c_index == idx && edid) {
475 nv_connector->edid =
476 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
477 of_node_put(cn);
478 return nv_encoder;
479 }
480 }
481 #endif
482 return NULL;
483 }
484
485 static void
486 nouveau_connector_set_encoder(struct drm_connector *connector,
487 struct nouveau_encoder *nv_encoder)
488 {
489 struct nouveau_connector *nv_connector = nouveau_connector(connector);
490 struct nouveau_drm *drm = nouveau_drm(connector->dev);
491 struct drm_device *dev = connector->dev;
492
493 if (nv_connector->detected_encoder == nv_encoder)
494 return;
495 nv_connector->detected_encoder = nv_encoder;
496
497 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
498 connector->interlace_allowed = true;
499 connector->doublescan_allowed = true;
500 } else
501 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
502 nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
503 connector->doublescan_allowed = false;
504 connector->interlace_allowed = false;
505 } else {
506 connector->doublescan_allowed = true;
507 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
508 (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
509 (dev->pdev->device & 0x0ff0) != 0x0100 &&
510 (dev->pdev->device & 0x0ff0) != 0x0150))
511 /* HW is broken */
512 connector->interlace_allowed = false;
513 else
514 connector->interlace_allowed = true;
515 }
516
517 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
518 drm_object_property_set_value(&connector->base,
519 dev->mode_config.dvi_i_subconnector_property,
520 nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
521 DRM_MODE_SUBCONNECTOR_DVID :
522 DRM_MODE_SUBCONNECTOR_DVIA);
523 }
524 }
525
526 static enum drm_connector_status
527 nouveau_connector_detect(struct drm_connector *connector, bool force)
528 {
529 struct drm_device *dev = connector->dev;
530 struct nouveau_drm *drm = nouveau_drm(dev);
531 struct nouveau_connector *nv_connector = nouveau_connector(connector);
532 struct nouveau_encoder *nv_encoder = NULL;
533 struct nouveau_encoder *nv_partner;
534 struct i2c_adapter *i2c;
535 int type;
536 int ret;
537 enum drm_connector_status conn_status = connector_status_disconnected;
538
539 /* Cleanup the previous EDID block. */
540 if (nv_connector->edid) {
541 drm_connector_update_edid_property(connector, NULL);
542 kfree(nv_connector->edid);
543 nv_connector->edid = NULL;
544 }
545
546 /* Outputs are only polled while runtime active, so resuming the
547 * device here is unnecessary (and would deadlock upon runtime suspend
548 * because it waits for polling to finish). We do however, want to
549 * prevent the autosuspend timer from elapsing during this operation
550 * if possible.
551 */
552 if (drm_kms_helper_is_poll_worker()) {
553 pm_runtime_get_noresume(dev->dev);
554 } else {
555 ret = pm_runtime_get_sync(dev->dev);
556 if (ret < 0 && ret != -EACCES)
557 return conn_status;
558 }
559
560 nv_encoder = nouveau_connector_ddc_detect(connector);
561 if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
562 if ((vga_switcheroo_handler_flags() &
563 VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
564 nv_connector->type == DCB_CONNECTOR_LVDS)
565 nv_connector->edid = drm_get_edid_switcheroo(connector,
566 i2c);
567 else
568 nv_connector->edid = drm_get_edid(connector, i2c);
569
570 drm_connector_update_edid_property(connector,
571 nv_connector->edid);
572 if (!nv_connector->edid) {
573 NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
574 connector->name);
575 goto detect_analog;
576 }
577
578 /* Override encoder type for DVI-I based on whether EDID
579 * says the display is digital or analog, both use the
580 * same i2c channel so the value returned from ddc_detect
581 * isn't necessarily correct.
582 */
583 nv_partner = NULL;
584 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
585 nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
586 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
587 nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
588
589 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
590 nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
591 (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
592 nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
593 if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
594 type = DCB_OUTPUT_TMDS;
595 else
596 type = DCB_OUTPUT_ANALOG;
597
598 nv_encoder = find_encoder(connector, type);
599 }
600
601 nouveau_connector_set_encoder(connector, nv_encoder);
602 conn_status = connector_status_connected;
603 drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid);
604 goto out;
605 }
606
607 nv_encoder = nouveau_connector_of_detect(connector);
608 if (nv_encoder) {
609 nouveau_connector_set_encoder(connector, nv_encoder);
610 conn_status = connector_status_connected;
611 goto out;
612 }
613
614 detect_analog:
615 nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
616 if (!nv_encoder && !nouveau_tv_disable)
617 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
618 if (nv_encoder && force) {
619 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
620 const struct drm_encoder_helper_funcs *helper =
621 encoder->helper_private;
622
623 if (helper->detect(encoder, connector) ==
624 connector_status_connected) {
625 nouveau_connector_set_encoder(connector, nv_encoder);
626 conn_status = connector_status_connected;
627 goto out;
628 }
629
630 }
631
632 out:
633
634 pm_runtime_mark_last_busy(dev->dev);
635 pm_runtime_put_autosuspend(dev->dev);
636
637 return conn_status;
638 }
639
640 static enum drm_connector_status
641 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
642 {
643 struct drm_device *dev = connector->dev;
644 struct nouveau_drm *drm = nouveau_drm(dev);
645 struct nouveau_connector *nv_connector = nouveau_connector(connector);
646 struct nouveau_encoder *nv_encoder = NULL;
647 enum drm_connector_status status = connector_status_disconnected;
648
649 /* Cleanup the previous EDID block. */
650 if (nv_connector->edid) {
651 drm_connector_update_edid_property(connector, NULL);
652 kfree(nv_connector->edid);
653 nv_connector->edid = NULL;
654 }
655
656 nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
657 if (!nv_encoder)
658 return connector_status_disconnected;
659
660 /* Try retrieving EDID via DDC */
661 if (!drm->vbios.fp_no_ddc) {
662 status = nouveau_connector_detect(connector, force);
663 if (status == connector_status_connected)
664 goto out;
665 }
666
667 /* On some laptops (Sony, i'm looking at you) there appears to
668 * be no direct way of accessing the panel's EDID. The only
669 * option available to us appears to be to ask ACPI for help..
670 *
671 * It's important this check's before trying straps, one of the
672 * said manufacturer's laptops are configured in such a way
673 * the nouveau decides an entry in the VBIOS FP mode table is
674 * valid - it's not (rh#613284)
675 */
676 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
677 if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
678 status = connector_status_connected;
679 goto out;
680 }
681 }
682
683 /* If no EDID found above, and the VBIOS indicates a hardcoded
684 * modeline is avalilable for the panel, set it as the panel's
685 * native mode and exit.
686 */
687 if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
688 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
689 status = connector_status_connected;
690 goto out;
691 }
692
693 /* Still nothing, some VBIOS images have a hardcoded EDID block
694 * stored for the panel stored in them.
695 */
696 if (!drm->vbios.fp_no_ddc) {
697 struct edid *edid =
698 (struct edid *)nouveau_bios_embedded_edid(dev);
699 if (edid) {
700 nv_connector->edid =
701 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
702 if (nv_connector->edid)
703 status = connector_status_connected;
704 }
705 }
706
707 out:
708 #if defined(CONFIG_ACPI_BUTTON) || \
709 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
710 if (status == connector_status_connected &&
711 !nouveau_ignorelid && !acpi_lid_open())
712 status = connector_status_unknown;
713 #endif
714
715 drm_connector_update_edid_property(connector, nv_connector->edid);
716 nouveau_connector_set_encoder(connector, nv_encoder);
717 return status;
718 }
719
720 static void
721 nouveau_connector_force(struct drm_connector *connector)
722 {
723 struct nouveau_drm *drm = nouveau_drm(connector->dev);
724 struct nouveau_connector *nv_connector = nouveau_connector(connector);
725 struct nouveau_encoder *nv_encoder;
726 int type;
727
728 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
729 if (connector->force == DRM_FORCE_ON_DIGITAL)
730 type = DCB_OUTPUT_TMDS;
731 else
732 type = DCB_OUTPUT_ANALOG;
733 } else
734 type = DCB_OUTPUT_ANY;
735
736 nv_encoder = find_encoder(connector, type);
737 if (!nv_encoder) {
738 NV_ERROR(drm, "can't find encoder to force %s on!\n",
739 connector->name);
740 connector->status = connector_status_disconnected;
741 return;
742 }
743
744 nouveau_connector_set_encoder(connector, nv_encoder);
745 }
746
747 static int
748 nouveau_connector_set_property(struct drm_connector *connector,
749 struct drm_property *property, uint64_t value)
750 {
751 struct nouveau_conn_atom *asyc = nouveau_conn_atom(connector->state);
752 struct nouveau_connector *nv_connector = nouveau_connector(connector);
753 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
754 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
755 int ret;
756
757 ret = connector->funcs->atomic_set_property(&nv_connector->base,
758 &asyc->state,
759 property, value);
760 if (ret) {
761 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
762 return get_slave_funcs(encoder)->set_property(
763 encoder, connector, property, value);
764 return ret;
765 }
766
767 nv_connector->scaling_mode = asyc->scaler.mode;
768 nv_connector->dithering_mode = asyc->dither.mode;
769
770 if (connector->encoder && connector->encoder->crtc) {
771 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
772 &connector->encoder->crtc->mode,
773 connector->encoder->crtc->x,
774 connector->encoder->crtc->y,
775 NULL);
776 if (!ret)
777 return -EINVAL;
778 }
779
780 return 0;
781 }
782
783 struct moderec {
784 int hdisplay;
785 int vdisplay;
786 };
787
788 static struct moderec scaler_modes[] = {
789 { 1920, 1200 },
790 { 1920, 1080 },
791 { 1680, 1050 },
792 { 1600, 1200 },
793 { 1400, 1050 },
794 { 1280, 1024 },
795 { 1280, 960 },
796 { 1152, 864 },
797 { 1024, 768 },
798 { 800, 600 },
799 { 720, 400 },
800 { 640, 480 },
801 { 640, 400 },
802 { 640, 350 },
803 {}
804 };
805
806 static int
807 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
808 {
809 struct nouveau_connector *nv_connector = nouveau_connector(connector);
810 struct drm_display_mode *native = nv_connector->native_mode, *m;
811 struct drm_device *dev = connector->dev;
812 struct moderec *mode = &scaler_modes[0];
813 int modes = 0;
814
815 if (!native)
816 return 0;
817
818 while (mode->hdisplay) {
819 if (mode->hdisplay <= native->hdisplay &&
820 mode->vdisplay <= native->vdisplay &&
821 (mode->hdisplay != native->hdisplay ||
822 mode->vdisplay != native->vdisplay)) {
823 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
824 drm_mode_vrefresh(native), false,
825 false, false);
826 if (!m)
827 continue;
828
829 drm_mode_probed_add(connector, m);
830 modes++;
831 }
832
833 mode++;
834 }
835
836 return modes;
837 }
838
839 static void
840 nouveau_connector_detect_depth(struct drm_connector *connector)
841 {
842 struct nouveau_drm *drm = nouveau_drm(connector->dev);
843 struct nouveau_connector *nv_connector = nouveau_connector(connector);
844 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
845 struct nvbios *bios = &drm->vbios;
846 struct drm_display_mode *mode = nv_connector->native_mode;
847 bool duallink;
848
849 /* if the edid is feeling nice enough to provide this info, use it */
850 if (nv_connector->edid && connector->display_info.bpc)
851 return;
852
853 /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
854 if (nv_connector->type == DCB_CONNECTOR_eDP) {
855 connector->display_info.bpc = 6;
856 return;
857 }
858
859 /* we're out of options unless we're LVDS, default to 8bpc */
860 if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
861 connector->display_info.bpc = 8;
862 return;
863 }
864
865 connector->display_info.bpc = 6;
866
867 /* LVDS: panel straps */
868 if (bios->fp_no_ddc) {
869 if (bios->fp.if_is_24bit)
870 connector->display_info.bpc = 8;
871 return;
872 }
873
874 /* LVDS: DDC panel, need to first determine the number of links to
875 * know which if_is_24bit flag to check...
876 */
877 if (nv_connector->edid &&
878 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
879 duallink = ((u8 *)nv_connector->edid)[121] == 2;
880 else
881 duallink = mode->clock >= bios->fp.duallink_transition_clk;
882
883 if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
884 ( duallink && (bios->fp.strapless_is_24bit & 2)))
885 connector->display_info.bpc = 8;
886 }
887
888 static int
889 nouveau_connector_late_register(struct drm_connector *connector)
890 {
891 int ret;
892
893 ret = nouveau_backlight_init(connector);
894
895 return ret;
896 }
897
898 static void
899 nouveau_connector_early_unregister(struct drm_connector *connector)
900 {
901 nouveau_backlight_fini(connector);
902 }
903
904 static int
905 nouveau_connector_get_modes(struct drm_connector *connector)
906 {
907 struct drm_device *dev = connector->dev;
908 struct nouveau_drm *drm = nouveau_drm(dev);
909 struct nouveau_connector *nv_connector = nouveau_connector(connector);
910 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
911 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
912 int ret = 0;
913
914 /* destroy the native mode, the attached monitor could have changed.
915 */
916 if (nv_connector->native_mode) {
917 drm_mode_destroy(dev, nv_connector->native_mode);
918 nv_connector->native_mode = NULL;
919 }
920
921 if (nv_connector->edid)
922 ret = drm_add_edid_modes(connector, nv_connector->edid);
923 else
924 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
925 (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
926 drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
927 struct drm_display_mode mode;
928
929 nouveau_bios_fp_mode(dev, &mode);
930 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
931 }
932
933 /* Determine display colour depth for everything except LVDS now,
934 * DP requires this before mode_valid() is called.
935 */
936 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
937 nouveau_connector_detect_depth(connector);
938
939 /* Find the native mode if this is a digital panel, if we didn't
940 * find any modes through DDC previously add the native mode to
941 * the list of modes.
942 */
943 if (!nv_connector->native_mode)
944 nv_connector->native_mode = nouveau_conn_native_mode(connector);
945 if (ret == 0 && nv_connector->native_mode) {
946 struct drm_display_mode *mode;
947
948 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
949 drm_mode_probed_add(connector, mode);
950 ret = 1;
951 }
952
953 /* Determine LVDS colour depth, must happen after determining
954 * "native" mode as some VBIOS tables require us to use the
955 * pixel clock as part of the lookup...
956 */
957 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
958 nouveau_connector_detect_depth(connector);
959
960 if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
961 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
962
963 if (nv_connector->type == DCB_CONNECTOR_LVDS ||
964 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
965 nv_connector->type == DCB_CONNECTOR_eDP)
966 ret += nouveau_connector_scaler_modes_add(connector);
967
968 return ret;
969 }
970
971 static unsigned
972 get_tmds_link_bandwidth(struct drm_connector *connector)
973 {
974 struct nouveau_connector *nv_connector = nouveau_connector(connector);
975 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
976 struct nouveau_drm *drm = nouveau_drm(connector->dev);
977 struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
978 struct drm_display_info *info = NULL;
979 unsigned duallink_scale =
980 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1;
981
982 if (drm_detect_hdmi_monitor(nv_connector->edid)) {
983 info = &nv_connector->base.display_info;
984 duallink_scale = 1;
985 }
986
987 if (info) {
988 if (nouveau_hdmimhz > 0)
989 return nouveau_hdmimhz * 1000;
990 /* Note: these limits are conservative, some Fermi's
991 * can do 297 MHz. Unclear how this can be determined.
992 */
993 if (drm->client.device.info.chipset >= 0x120) {
994 const int max_tmds_clock =
995 info->hdmi.scdc.scrambling.supported ?
996 594000 : 340000;
997 return info->max_tmds_clock ?
998 min(info->max_tmds_clock, max_tmds_clock) :
999 max_tmds_clock;
1000 }
1001 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
1002 return 297000;
1003 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
1004 return 225000;
1005 }
1006
1007 if (dcb->location != DCB_LOC_ON_CHIP ||
1008 drm->client.device.info.chipset >= 0x46)
1009 return 165000 * duallink_scale;
1010 else if (drm->client.device.info.chipset >= 0x40)
1011 return 155000 * duallink_scale;
1012 else if (drm->client.device.info.chipset >= 0x18)
1013 return 135000 * duallink_scale;
1014 else
1015 return 112000 * duallink_scale;
1016 }
1017
1018 static enum drm_mode_status
1019 nouveau_connector_mode_valid(struct drm_connector *connector,
1020 struct drm_display_mode *mode)
1021 {
1022 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1023 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1024 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1025 unsigned min_clock = 25000, max_clock = min_clock;
1026 unsigned clock = mode->clock;
1027
1028 switch (nv_encoder->dcb->type) {
1029 case DCB_OUTPUT_LVDS:
1030 if (nv_connector->native_mode &&
1031 (mode->hdisplay > nv_connector->native_mode->hdisplay ||
1032 mode->vdisplay > nv_connector->native_mode->vdisplay))
1033 return MODE_PANEL;
1034
1035 min_clock = 0;
1036 max_clock = 400000;
1037 break;
1038 case DCB_OUTPUT_TMDS:
1039 max_clock = get_tmds_link_bandwidth(connector);
1040 break;
1041 case DCB_OUTPUT_ANALOG:
1042 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1043 if (!max_clock)
1044 max_clock = 350000;
1045 break;
1046 case DCB_OUTPUT_TV:
1047 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1048 case DCB_OUTPUT_DP:
1049 max_clock = nv_encoder->dp.link_nr;
1050 max_clock *= nv_encoder->dp.link_bw;
1051 clock = clock * (connector->display_info.bpc * 3) / 10;
1052 break;
1053 default:
1054 BUG();
1055 return MODE_BAD;
1056 }
1057
1058 if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1059 clock *= 2;
1060
1061 if (clock < min_clock)
1062 return MODE_CLOCK_LOW;
1063
1064 if (clock > max_clock)
1065 return MODE_CLOCK_HIGH;
1066
1067 return MODE_OK;
1068 }
1069
1070 static struct drm_encoder *
1071 nouveau_connector_best_encoder(struct drm_connector *connector)
1072 {
1073 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1074
1075 if (nv_connector->detected_encoder)
1076 return to_drm_encoder(nv_connector->detected_encoder);
1077
1078 return NULL;
1079 }
1080
1081 static const struct drm_connector_helper_funcs
1082 nouveau_connector_helper_funcs = {
1083 .get_modes = nouveau_connector_get_modes,
1084 .mode_valid = nouveau_connector_mode_valid,
1085 .best_encoder = nouveau_connector_best_encoder,
1086 };
1087
1088 static const struct drm_connector_funcs
1089 nouveau_connector_funcs = {
1090 .dpms = drm_helper_connector_dpms,
1091 .reset = nouveau_conn_reset,
1092 .detect = nouveau_connector_detect,
1093 .force = nouveau_connector_force,
1094 .fill_modes = drm_helper_probe_single_connector_modes,
1095 .set_property = nouveau_connector_set_property,
1096 .destroy = nouveau_connector_destroy,
1097 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1098 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1099 .atomic_set_property = nouveau_conn_atomic_set_property,
1100 .atomic_get_property = nouveau_conn_atomic_get_property,
1101 .late_register = nouveau_connector_late_register,
1102 .early_unregister = nouveau_connector_early_unregister,
1103 };
1104
1105 static const struct drm_connector_funcs
1106 nouveau_connector_funcs_lvds = {
1107 .dpms = drm_helper_connector_dpms,
1108 .reset = nouveau_conn_reset,
1109 .detect = nouveau_connector_detect_lvds,
1110 .force = nouveau_connector_force,
1111 .fill_modes = drm_helper_probe_single_connector_modes,
1112 .set_property = nouveau_connector_set_property,
1113 .destroy = nouveau_connector_destroy,
1114 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1115 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1116 .atomic_set_property = nouveau_conn_atomic_set_property,
1117 .atomic_get_property = nouveau_conn_atomic_get_property,
1118 .late_register = nouveau_connector_late_register,
1119 .early_unregister = nouveau_connector_early_unregister,
1120 };
1121
1122 static int
1123 nouveau_connector_hotplug(struct nvif_notify *notify)
1124 {
1125 struct nouveau_connector *nv_connector =
1126 container_of(notify, typeof(*nv_connector), hpd);
1127 struct drm_connector *connector = &nv_connector->base;
1128 struct nouveau_drm *drm = nouveau_drm(connector->dev);
1129 const struct nvif_notify_conn_rep_v0 *rep = notify->data;
1130 const char *name = connector->name;
1131 struct nouveau_encoder *nv_encoder;
1132 int ret;
1133 bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1134
1135 if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1136 NV_DEBUG(drm, "service %s\n", name);
1137 drm_dp_cec_irq(&nv_connector->aux);
1138 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP)))
1139 nv50_mstm_service(nv_encoder->dp.mstm);
1140
1141 return NVIF_NOTIFY_KEEP;
1142 }
1143
1144 ret = pm_runtime_get(drm->dev->dev);
1145 if (ret == 0) {
1146 /* We can't block here if there's a pending PM request
1147 * running, as we'll deadlock nouveau_display_fini() when it
1148 * calls nvif_put() on our nvif_notify struct. So, simply
1149 * defer the hotplug event until the device finishes resuming
1150 */
1151 NV_DEBUG(drm, "Deferring HPD on %s until runtime resume\n",
1152 name);
1153 schedule_work(&drm->hpd_work);
1154
1155 pm_runtime_put_noidle(drm->dev->dev);
1156 return NVIF_NOTIFY_KEEP;
1157 } else if (ret != 1 && ret != -EACCES) {
1158 NV_WARN(drm, "HPD on %s dropped due to RPM failure: %d\n",
1159 name, ret);
1160 return NVIF_NOTIFY_DROP;
1161 }
1162
1163 if (!plugged)
1164 drm_dp_cec_unset_edid(&nv_connector->aux);
1165 NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
1166 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) {
1167 if (!plugged)
1168 nv50_mstm_remove(nv_encoder->dp.mstm);
1169 }
1170
1171 drm_helper_hpd_irq_event(connector->dev);
1172
1173 pm_runtime_mark_last_busy(drm->dev->dev);
1174 pm_runtime_put_autosuspend(drm->dev->dev);
1175 return NVIF_NOTIFY_KEEP;
1176 }
1177
1178 static ssize_t
1179 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1180 {
1181 struct nouveau_connector *nv_connector =
1182 container_of(obj, typeof(*nv_connector), aux);
1183 struct nouveau_encoder *nv_encoder;
1184 struct nvkm_i2c_aux *aux;
1185 u8 size = msg->size;
1186 int ret;
1187
1188 nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1189 if (!nv_encoder || !(aux = nv_encoder->aux))
1190 return -ENODEV;
1191 if (WARN_ON(msg->size > 16))
1192 return -E2BIG;
1193
1194 ret = nvkm_i2c_aux_acquire(aux);
1195 if (ret)
1196 return ret;
1197
1198 ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1199 msg->buffer, &size);
1200 nvkm_i2c_aux_release(aux);
1201 if (ret >= 0) {
1202 msg->reply = ret;
1203 return size;
1204 }
1205
1206 return ret;
1207 }
1208
1209 static int
1210 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1211 {
1212 switch (dcb) {
1213 case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA;
1214 case DCB_CONNECTOR_TV_0 :
1215 case DCB_CONNECTOR_TV_1 :
1216 case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV;
1217 case DCB_CONNECTOR_DMS59_0 :
1218 case DCB_CONNECTOR_DMS59_1 :
1219 case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII;
1220 case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID;
1221 case DCB_CONNECTOR_LVDS :
1222 case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1223 case DCB_CONNECTOR_DMS59_DP0:
1224 case DCB_CONNECTOR_DMS59_DP1:
1225 case DCB_CONNECTOR_DP :
1226 case DCB_CONNECTOR_USB_C : return DRM_MODE_CONNECTOR_DisplayPort;
1227 case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP;
1228 case DCB_CONNECTOR_HDMI_0 :
1229 case DCB_CONNECTOR_HDMI_1 :
1230 case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA;
1231 case DCB_CONNECTOR_WFD : return DRM_MODE_CONNECTOR_VIRTUAL;
1232 default:
1233 break;
1234 }
1235
1236 return DRM_MODE_CONNECTOR_Unknown;
1237 }
1238
1239 struct drm_connector *
1240 nouveau_connector_create(struct drm_device *dev,
1241 const struct dcb_output *dcbe)
1242 {
1243 const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1244 struct nouveau_drm *drm = nouveau_drm(dev);
1245 struct nouveau_display *disp = nouveau_display(dev);
1246 struct nouveau_connector *nv_connector = NULL;
1247 struct drm_connector *connector;
1248 struct drm_connector_list_iter conn_iter;
1249 char aux_name[48] = {0};
1250 int index = dcbe->connector;
1251 int type, ret = 0;
1252 bool dummy;
1253
1254 drm_connector_list_iter_begin(dev, &conn_iter);
1255 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1256 nv_connector = nouveau_connector(connector);
1257 if (nv_connector->index == index) {
1258 drm_connector_list_iter_end(&conn_iter);
1259 return connector;
1260 }
1261 }
1262 drm_connector_list_iter_end(&conn_iter);
1263
1264 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1265 if (!nv_connector)
1266 return ERR_PTR(-ENOMEM);
1267
1268 connector = &nv_connector->base;
1269 nv_connector->index = index;
1270
1271 /* attempt to parse vbios connector type and hotplug gpio */
1272 nv_connector->dcb = olddcb_conn(dev, index);
1273 if (nv_connector->dcb) {
1274 u32 entry = ROM16(nv_connector->dcb[0]);
1275 if (olddcb_conntab(dev)[3] >= 4)
1276 entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1277
1278 nv_connector->type = nv_connector->dcb[0];
1279 if (drm_conntype_from_dcb(nv_connector->type) ==
1280 DRM_MODE_CONNECTOR_Unknown) {
1281 NV_WARN(drm, "unknown connector type %02x\n",
1282 nv_connector->type);
1283 nv_connector->type = DCB_CONNECTOR_NONE;
1284 }
1285
1286 /* Gigabyte NX85T */
1287 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1288 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1289 nv_connector->type = DCB_CONNECTOR_DVI_I;
1290 }
1291
1292 /* Gigabyte GV-NX86T512H */
1293 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1294 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1295 nv_connector->type = DCB_CONNECTOR_DVI_I;
1296 }
1297 } else {
1298 nv_connector->type = DCB_CONNECTOR_NONE;
1299 }
1300
1301 /* no vbios data, or an unknown dcb connector type - attempt to
1302 * figure out something suitable ourselves
1303 */
1304 if (nv_connector->type == DCB_CONNECTOR_NONE) {
1305 struct nouveau_drm *drm = nouveau_drm(dev);
1306 struct dcb_table *dcbt = &drm->vbios.dcb;
1307 u32 encoders = 0;
1308 int i;
1309
1310 for (i = 0; i < dcbt->entries; i++) {
1311 if (dcbt->entry[i].connector == nv_connector->index)
1312 encoders |= (1 << dcbt->entry[i].type);
1313 }
1314
1315 if (encoders & (1 << DCB_OUTPUT_DP)) {
1316 if (encoders & (1 << DCB_OUTPUT_TMDS))
1317 nv_connector->type = DCB_CONNECTOR_DP;
1318 else
1319 nv_connector->type = DCB_CONNECTOR_eDP;
1320 } else
1321 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1322 if (encoders & (1 << DCB_OUTPUT_ANALOG))
1323 nv_connector->type = DCB_CONNECTOR_DVI_I;
1324 else
1325 nv_connector->type = DCB_CONNECTOR_DVI_D;
1326 } else
1327 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1328 nv_connector->type = DCB_CONNECTOR_VGA;
1329 } else
1330 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1331 nv_connector->type = DCB_CONNECTOR_LVDS;
1332 } else
1333 if (encoders & (1 << DCB_OUTPUT_TV)) {
1334 nv_connector->type = DCB_CONNECTOR_TV_0;
1335 }
1336 }
1337
1338 switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1339 case DRM_MODE_CONNECTOR_LVDS:
1340 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1341 if (ret) {
1342 NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1343 kfree(nv_connector);
1344 return ERR_PTR(ret);
1345 }
1346
1347 funcs = &nouveau_connector_funcs_lvds;
1348 break;
1349 case DRM_MODE_CONNECTOR_DisplayPort:
1350 case DRM_MODE_CONNECTOR_eDP:
1351 nv_connector->aux.dev = connector->kdev;
1352 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1353 snprintf(aux_name, sizeof(aux_name), "sor-%04x-%04x",
1354 dcbe->hasht, dcbe->hashm);
1355 nv_connector->aux.name = kstrdup(aux_name, GFP_KERNEL);
1356 ret = drm_dp_aux_register(&nv_connector->aux);
1357 if (ret) {
1358 NV_ERROR(drm, "failed to register aux channel\n");
1359 kfree(nv_connector);
1360 return ERR_PTR(ret);
1361 }
1362 funcs = &nouveau_connector_funcs;
1363 break;
1364 default:
1365 funcs = &nouveau_connector_funcs;
1366 break;
1367 }
1368
1369 /* HDMI 3D support */
1370 if ((disp->disp.object.oclass >= G82_DISP)
1371 && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1372 || (type == DRM_MODE_CONNECTOR_eDP)
1373 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1374 connector->stereo_allowed = true;
1375
1376 /* defaults, will get overridden in detect() */
1377 connector->interlace_allowed = false;
1378 connector->doublescan_allowed = false;
1379
1380 drm_connector_init(dev, connector, funcs, type);
1381 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1382
1383 connector->funcs->reset(connector);
1384 nouveau_conn_attach_properties(connector);
1385
1386 /* Default scaling mode */
1387 switch (nv_connector->type) {
1388 case DCB_CONNECTOR_LVDS:
1389 case DCB_CONNECTOR_LVDS_SPWG:
1390 case DCB_CONNECTOR_eDP:
1391 /* see note in nouveau_connector_set_property() */
1392 if (disp->disp.object.oclass < NV50_DISP) {
1393 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1394 break;
1395 }
1396 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1397 break;
1398 default:
1399 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1400 break;
1401 }
1402
1403 /* dithering properties */
1404 switch (nv_connector->type) {
1405 case DCB_CONNECTOR_TV_0:
1406 case DCB_CONNECTOR_TV_1:
1407 case DCB_CONNECTOR_TV_3:
1408 case DCB_CONNECTOR_VGA:
1409 break;
1410 default:
1411 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1412 break;
1413 }
1414
1415 switch (type) {
1416 case DRM_MODE_CONNECTOR_DisplayPort:
1417 case DRM_MODE_CONNECTOR_eDP:
1418 drm_dp_cec_register_connector(&nv_connector->aux, connector);
1419 break;
1420 }
1421
1422 ret = nvif_notify_init(&disp->disp.object, nouveau_connector_hotplug,
1423 true, NV04_DISP_NTFY_CONN,
1424 &(struct nvif_notify_conn_req_v0) {
1425 .mask = NVIF_NOTIFY_CONN_V0_ANY,
1426 .conn = index,
1427 },
1428 sizeof(struct nvif_notify_conn_req_v0),
1429 sizeof(struct nvif_notify_conn_rep_v0),
1430 &nv_connector->hpd);
1431 if (ret)
1432 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1433 else
1434 connector->polled = DRM_CONNECTOR_POLL_HPD;
1435
1436 drm_connector_register(connector);
1437 return connector;
1438 }
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