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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / gpu / drm / nouveau / nouveau_connector.c
blob9a9a7f5003d3f370fe5f23926a836fd7ad0a6f37
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_connector *nv_connector = nouveau_connector(connector);
249 struct nouveau_conn_atom *asyc;
250
251 if (drm_drv_uses_atomic_modeset(connector->dev)) {
252 if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL))))
253 return;
254
255 if (connector->state)
256 nouveau_conn_atomic_destroy_state(connector,
257 connector->state);
258
259 __drm_atomic_helper_connector_reset(connector, &asyc->state);
260 } else {
261 asyc = &nv_connector->properties_state;
262 }
263
264 asyc->dither.mode = DITHERING_MODE_AUTO;
265 asyc->dither.depth = DITHERING_DEPTH_AUTO;
266 asyc->scaler.mode = DRM_MODE_SCALE_NONE;
267 asyc->scaler.underscan.mode = UNDERSCAN_OFF;
268 asyc->procamp.color_vibrance = 150;
269 asyc->procamp.vibrant_hue = 90;
270
271 if (nouveau_display(connector->dev)->disp.object.oclass < NV50_DISP) {
272 switch (connector->connector_type) {
273 case DRM_MODE_CONNECTOR_LVDS:
274 /* See note in nouveau_conn_atomic_set_property(). */
275 asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN;
276 break;
277 default:
278 break;
279 }
280 }
281 }
282
283 void
284 nouveau_conn_attach_properties(struct drm_connector *connector)
285 {
286 struct drm_device *dev = connector->dev;
287 struct nouveau_display *disp = nouveau_display(dev);
288 struct nouveau_connector *nv_connector = nouveau_connector(connector);
289 struct nouveau_conn_atom *armc;
290
291 if (drm_drv_uses_atomic_modeset(connector->dev))
292 armc = nouveau_conn_atom(connector->state);
293 else
294 armc = &nv_connector->properties_state;
295
296 /* Init DVI-I specific properties. */
297 if (connector->connector_type == DRM_MODE_CONNECTOR_DVII)
298 drm_object_attach_property(&connector->base, dev->mode_config.
299 dvi_i_subconnector_property, 0);
300
301 /* Add overscan compensation options to digital outputs. */
302 if (disp->underscan_property &&
303 (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
304 connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
305 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
306 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) {
307 drm_object_attach_property(&connector->base,
308 disp->underscan_property,
309 UNDERSCAN_OFF);
310 drm_object_attach_property(&connector->base,
311 disp->underscan_hborder_property, 0);
312 drm_object_attach_property(&connector->base,
313 disp->underscan_vborder_property, 0);
314 }
315
316 /* Add hue and saturation options. */
317 if (disp->vibrant_hue_property)
318 drm_object_attach_property(&connector->base,
319 disp->vibrant_hue_property,
320 armc->procamp.vibrant_hue);
321 if (disp->color_vibrance_property)
322 drm_object_attach_property(&connector->base,
323 disp->color_vibrance_property,
324 armc->procamp.color_vibrance);
325
326 /* Scaling mode property. */
327 switch (connector->connector_type) {
328 case DRM_MODE_CONNECTOR_TV:
329 break;
330 case DRM_MODE_CONNECTOR_VGA:
331 if (disp->disp.object.oclass < NV50_DISP)
332 break; /* Can only scale on DFPs. */
333 /* Fall-through. */
334 default:
335 drm_object_attach_property(&connector->base, dev->mode_config.
336 scaling_mode_property,
337 armc->scaler.mode);
338 break;
339 }
340
341 /* Dithering properties. */
342 switch (connector->connector_type) {
343 case DRM_MODE_CONNECTOR_TV:
344 case DRM_MODE_CONNECTOR_VGA:
345 break;
346 default:
347 if (disp->dithering_mode) {
348 drm_object_attach_property(&connector->base,
349 disp->dithering_mode,
350 armc->dither.mode);
351 }
352 if (disp->dithering_depth) {
353 drm_object_attach_property(&connector->base,
354 disp->dithering_depth,
355 armc->dither.depth);
356 }
357 break;
358 }
359 }
360
361 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
362 int nouveau_tv_disable = 0;
363 module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
364
365 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
366 int nouveau_ignorelid = 0;
367 module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
368
369 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
370 int nouveau_duallink = 1;
371 module_param_named(duallink, nouveau_duallink, int, 0400);
372
373 MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
374 int nouveau_hdmimhz = 0;
375 module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400);
376
377 struct nouveau_encoder *
378 find_encoder(struct drm_connector *connector, int type)
379 {
380 struct nouveau_encoder *nv_encoder;
381 struct drm_encoder *enc;
382
383 drm_connector_for_each_possible_encoder(connector, enc) {
384 nv_encoder = nouveau_encoder(enc);
385
386 if (type == DCB_OUTPUT_ANY ||
387 (nv_encoder->dcb && nv_encoder->dcb->type == type))
388 return nv_encoder;
389 }
390
391 return NULL;
392 }
393
394 struct nouveau_connector *
395 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
396 {
397 struct drm_device *dev = to_drm_encoder(encoder)->dev;
398 struct drm_connector *drm_connector;
399
400 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
401 if (drm_connector->encoder == to_drm_encoder(encoder))
402 return nouveau_connector(drm_connector);
403 }
404
405 return NULL;
406 }
407
408 static void
409 nouveau_connector_destroy(struct drm_connector *connector)
410 {
411 struct nouveau_connector *nv_connector = nouveau_connector(connector);
412 nvif_notify_fini(&nv_connector->hpd);
413 kfree(nv_connector->edid);
414 drm_connector_unregister(connector);
415 drm_connector_cleanup(connector);
416 if (nv_connector->aux.transfer) {
417 drm_dp_cec_unregister_connector(&nv_connector->aux);
418 drm_dp_aux_unregister(&nv_connector->aux);
419 kfree(nv_connector->aux.name);
420 }
421 kfree(connector);
422 }
423
424 static struct nouveau_encoder *
425 nouveau_connector_ddc_detect(struct drm_connector *connector)
426 {
427 struct drm_device *dev = connector->dev;
428 struct nouveau_encoder *nv_encoder = NULL, *found = NULL;
429 struct drm_encoder *encoder;
430 int ret;
431 bool switcheroo_ddc = false;
432
433 drm_connector_for_each_possible_encoder(connector, encoder) {
434 nv_encoder = nouveau_encoder(encoder);
435
436 switch (nv_encoder->dcb->type) {
437 case DCB_OUTPUT_DP:
438 ret = nouveau_dp_detect(nv_encoder);
439 if (ret == NOUVEAU_DP_MST)
440 return NULL;
441 else if (ret == NOUVEAU_DP_SST)
442 found = nv_encoder;
443
444 break;
445 case DCB_OUTPUT_LVDS:
446 switcheroo_ddc = !!(vga_switcheroo_handler_flags() &
447 VGA_SWITCHEROO_CAN_SWITCH_DDC);
448 /* fall-through */
449 default:
450 if (!nv_encoder->i2c)
451 break;
452
453 if (switcheroo_ddc)
454 vga_switcheroo_lock_ddc(dev->pdev);
455 if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
456 found = nv_encoder;
457 if (switcheroo_ddc)
458 vga_switcheroo_unlock_ddc(dev->pdev);
459
460 break;
461 }
462 if (found)
463 break;
464 }
465
466 return found;
467 }
468
469 static struct nouveau_encoder *
470 nouveau_connector_of_detect(struct drm_connector *connector)
471 {
472 #ifdef __powerpc__
473 struct drm_device *dev = connector->dev;
474 struct nouveau_connector *nv_connector = nouveau_connector(connector);
475 struct nouveau_encoder *nv_encoder;
476 struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
477
478 if (!dn ||
479 !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
480 (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
481 return NULL;
482
483 for_each_child_of_node(dn, cn) {
484 const char *name = of_get_property(cn, "name", NULL);
485 const void *edid = of_get_property(cn, "EDID", NULL);
486 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
487
488 if (nv_encoder->dcb->i2c_index == idx && edid) {
489 nv_connector->edid =
490 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
491 of_node_put(cn);
492 return nv_encoder;
493 }
494 }
495 #endif
496 return NULL;
497 }
498
499 static void
500 nouveau_connector_set_encoder(struct drm_connector *connector,
501 struct nouveau_encoder *nv_encoder)
502 {
503 struct nouveau_connector *nv_connector = nouveau_connector(connector);
504 struct nouveau_drm *drm = nouveau_drm(connector->dev);
505 struct drm_device *dev = connector->dev;
506
507 if (nv_connector->detected_encoder == nv_encoder)
508 return;
509 nv_connector->detected_encoder = nv_encoder;
510
511 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
512 connector->interlace_allowed = true;
513 connector->doublescan_allowed = true;
514 } else
515 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
516 nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
517 connector->doublescan_allowed = false;
518 connector->interlace_allowed = false;
519 } else {
520 connector->doublescan_allowed = true;
521 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
522 (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
523 (dev->pdev->device & 0x0ff0) != 0x0100 &&
524 (dev->pdev->device & 0x0ff0) != 0x0150))
525 /* HW is broken */
526 connector->interlace_allowed = false;
527 else
528 connector->interlace_allowed = true;
529 }
530
531 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
532 drm_object_property_set_value(&connector->base,
533 dev->mode_config.dvi_i_subconnector_property,
534 nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
535 DRM_MODE_SUBCONNECTOR_DVID :
536 DRM_MODE_SUBCONNECTOR_DVIA);
537 }
538 }
539
540 static enum drm_connector_status
541 nouveau_connector_detect(struct drm_connector *connector, bool force)
542 {
543 struct drm_device *dev = connector->dev;
544 struct nouveau_drm *drm = nouveau_drm(dev);
545 struct nouveau_connector *nv_connector = nouveau_connector(connector);
546 struct nouveau_encoder *nv_encoder = NULL;
547 struct nouveau_encoder *nv_partner;
548 struct i2c_adapter *i2c;
549 int type;
550 int ret;
551 enum drm_connector_status conn_status = connector_status_disconnected;
552
553 /* Cleanup the previous EDID block. */
554 if (nv_connector->edid) {
555 drm_connector_update_edid_property(connector, NULL);
556 kfree(nv_connector->edid);
557 nv_connector->edid = NULL;
558 }
559
560 /* Outputs are only polled while runtime active, so resuming the
561 * device here is unnecessary (and would deadlock upon runtime suspend
562 * because it waits for polling to finish). We do however, want to
563 * prevent the autosuspend timer from elapsing during this operation
564 * if possible.
565 */
566 if (drm_kms_helper_is_poll_worker()) {
567 pm_runtime_get_noresume(dev->dev);
568 } else {
569 ret = pm_runtime_get_sync(dev->dev);
570 if (ret < 0 && ret != -EACCES)
571 return conn_status;
572 }
573
574 nv_encoder = nouveau_connector_ddc_detect(connector);
575 if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
576 if ((vga_switcheroo_handler_flags() &
577 VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
578 nv_connector->type == DCB_CONNECTOR_LVDS)
579 nv_connector->edid = drm_get_edid_switcheroo(connector,
580 i2c);
581 else
582 nv_connector->edid = drm_get_edid(connector, i2c);
583
584 drm_connector_update_edid_property(connector,
585 nv_connector->edid);
586 if (!nv_connector->edid) {
587 NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
588 connector->name);
589 goto detect_analog;
590 }
591
592 /* Override encoder type for DVI-I based on whether EDID
593 * says the display is digital or analog, both use the
594 * same i2c channel so the value returned from ddc_detect
595 * isn't necessarily correct.
596 */
597 nv_partner = NULL;
598 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
599 nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
600 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
601 nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
602
603 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
604 nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
605 (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
606 nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
607 if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
608 type = DCB_OUTPUT_TMDS;
609 else
610 type = DCB_OUTPUT_ANALOG;
611
612 nv_encoder = find_encoder(connector, type);
613 }
614
615 nouveau_connector_set_encoder(connector, nv_encoder);
616 conn_status = connector_status_connected;
617 drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid);
618 goto out;
619 }
620
621 nv_encoder = nouveau_connector_of_detect(connector);
622 if (nv_encoder) {
623 nouveau_connector_set_encoder(connector, nv_encoder);
624 conn_status = connector_status_connected;
625 goto out;
626 }
627
628 detect_analog:
629 nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
630 if (!nv_encoder && !nouveau_tv_disable)
631 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
632 if (nv_encoder && force) {
633 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
634 const struct drm_encoder_helper_funcs *helper =
635 encoder->helper_private;
636
637 if (helper->detect(encoder, connector) ==
638 connector_status_connected) {
639 nouveau_connector_set_encoder(connector, nv_encoder);
640 conn_status = connector_status_connected;
641 goto out;
642 }
643
644 }
645
646 out:
647
648 pm_runtime_mark_last_busy(dev->dev);
649 pm_runtime_put_autosuspend(dev->dev);
650
651 return conn_status;
652 }
653
654 static enum drm_connector_status
655 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
656 {
657 struct drm_device *dev = connector->dev;
658 struct nouveau_drm *drm = nouveau_drm(dev);
659 struct nouveau_connector *nv_connector = nouveau_connector(connector);
660 struct nouveau_encoder *nv_encoder = NULL;
661 enum drm_connector_status status = connector_status_disconnected;
662
663 /* Cleanup the previous EDID block. */
664 if (nv_connector->edid) {
665 drm_connector_update_edid_property(connector, NULL);
666 kfree(nv_connector->edid);
667 nv_connector->edid = NULL;
668 }
669
670 nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
671 if (!nv_encoder)
672 return connector_status_disconnected;
673
674 /* Try retrieving EDID via DDC */
675 if (!drm->vbios.fp_no_ddc) {
676 status = nouveau_connector_detect(connector, force);
677 if (status == connector_status_connected)
678 goto out;
679 }
680
681 /* On some laptops (Sony, i'm looking at you) there appears to
682 * be no direct way of accessing the panel's EDID. The only
683 * option available to us appears to be to ask ACPI for help..
684 *
685 * It's important this check's before trying straps, one of the
686 * said manufacturer's laptops are configured in such a way
687 * the nouveau decides an entry in the VBIOS FP mode table is
688 * valid - it's not (rh#613284)
689 */
690 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
691 if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
692 status = connector_status_connected;
693 goto out;
694 }
695 }
696
697 /* If no EDID found above, and the VBIOS indicates a hardcoded
698 * modeline is avalilable for the panel, set it as the panel's
699 * native mode and exit.
700 */
701 if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
702 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
703 status = connector_status_connected;
704 goto out;
705 }
706
707 /* Still nothing, some VBIOS images have a hardcoded EDID block
708 * stored for the panel stored in them.
709 */
710 if (!drm->vbios.fp_no_ddc) {
711 struct edid *edid =
712 (struct edid *)nouveau_bios_embedded_edid(dev);
713 if (edid) {
714 nv_connector->edid =
715 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
716 if (nv_connector->edid)
717 status = connector_status_connected;
718 }
719 }
720
721 out:
722 #if defined(CONFIG_ACPI_BUTTON) || \
723 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
724 if (status == connector_status_connected &&
725 !nouveau_ignorelid && !acpi_lid_open())
726 status = connector_status_unknown;
727 #endif
728
729 drm_connector_update_edid_property(connector, nv_connector->edid);
730 nouveau_connector_set_encoder(connector, nv_encoder);
731 return status;
732 }
733
734 static void
735 nouveau_connector_force(struct drm_connector *connector)
736 {
737 struct nouveau_drm *drm = nouveau_drm(connector->dev);
738 struct nouveau_connector *nv_connector = nouveau_connector(connector);
739 struct nouveau_encoder *nv_encoder;
740 int type;
741
742 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
743 if (connector->force == DRM_FORCE_ON_DIGITAL)
744 type = DCB_OUTPUT_TMDS;
745 else
746 type = DCB_OUTPUT_ANALOG;
747 } else
748 type = DCB_OUTPUT_ANY;
749
750 nv_encoder = find_encoder(connector, type);
751 if (!nv_encoder) {
752 NV_ERROR(drm, "can't find encoder to force %s on!\n",
753 connector->name);
754 connector->status = connector_status_disconnected;
755 return;
756 }
757
758 nouveau_connector_set_encoder(connector, nv_encoder);
759 }
760
761 static int
762 nouveau_connector_set_property(struct drm_connector *connector,
763 struct drm_property *property, uint64_t value)
764 {
765 struct nouveau_connector *nv_connector = nouveau_connector(connector);
766 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
767 struct nouveau_conn_atom *asyc = &nv_connector->properties_state;
768 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
769 int ret;
770
771 ret = connector->funcs->atomic_set_property(&nv_connector->base,
772 &asyc->state,
773 property, value);
774 if (ret) {
775 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
776 return get_slave_funcs(encoder)->set_property(
777 encoder, connector, property, value);
778 return ret;
779 }
780
781 nv_connector->scaling_mode = asyc->scaler.mode;
782 nv_connector->dithering_mode = asyc->dither.mode;
783
784 if (connector->encoder && connector->encoder->crtc) {
785 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
786 &connector->encoder->crtc->mode,
787 connector->encoder->crtc->x,
788 connector->encoder->crtc->y,
789 NULL);
790 if (!ret)
791 return -EINVAL;
792 }
793
794 return 0;
795 }
796
797 struct moderec {
798 int hdisplay;
799 int vdisplay;
800 };
801
802 static struct moderec scaler_modes[] = {
803 { 1920, 1200 },
804 { 1920, 1080 },
805 { 1680, 1050 },
806 { 1600, 1200 },
807 { 1400, 1050 },
808 { 1280, 1024 },
809 { 1280, 960 },
810 { 1152, 864 },
811 { 1024, 768 },
812 { 800, 600 },
813 { 720, 400 },
814 { 640, 480 },
815 { 640, 400 },
816 { 640, 350 },
817 {}
818 };
819
820 static int
821 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
822 {
823 struct nouveau_connector *nv_connector = nouveau_connector(connector);
824 struct drm_display_mode *native = nv_connector->native_mode, *m;
825 struct drm_device *dev = connector->dev;
826 struct moderec *mode = &scaler_modes[0];
827 int modes = 0;
828
829 if (!native)
830 return 0;
831
832 while (mode->hdisplay) {
833 if (mode->hdisplay <= native->hdisplay &&
834 mode->vdisplay <= native->vdisplay &&
835 (mode->hdisplay != native->hdisplay ||
836 mode->vdisplay != native->vdisplay)) {
837 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
838 drm_mode_vrefresh(native), false,
839 false, false);
840 if (!m)
841 continue;
842
843 drm_mode_probed_add(connector, m);
844 modes++;
845 }
846
847 mode++;
848 }
849
850 return modes;
851 }
852
853 static void
854 nouveau_connector_detect_depth(struct drm_connector *connector)
855 {
856 struct nouveau_drm *drm = nouveau_drm(connector->dev);
857 struct nouveau_connector *nv_connector = nouveau_connector(connector);
858 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
859 struct nvbios *bios = &drm->vbios;
860 struct drm_display_mode *mode = nv_connector->native_mode;
861 bool duallink;
862
863 /* if the edid is feeling nice enough to provide this info, use it */
864 if (nv_connector->edid && connector->display_info.bpc)
865 return;
866
867 /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
868 if (nv_connector->type == DCB_CONNECTOR_eDP) {
869 connector->display_info.bpc = 6;
870 return;
871 }
872
873 /* we're out of options unless we're LVDS, default to 8bpc */
874 if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
875 connector->display_info.bpc = 8;
876 return;
877 }
878
879 connector->display_info.bpc = 6;
880
881 /* LVDS: panel straps */
882 if (bios->fp_no_ddc) {
883 if (bios->fp.if_is_24bit)
884 connector->display_info.bpc = 8;
885 return;
886 }
887
888 /* LVDS: DDC panel, need to first determine the number of links to
889 * know which if_is_24bit flag to check...
890 */
891 if (nv_connector->edid &&
892 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
893 duallink = ((u8 *)nv_connector->edid)[121] == 2;
894 else
895 duallink = mode->clock >= bios->fp.duallink_transition_clk;
896
897 if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
898 ( duallink && (bios->fp.strapless_is_24bit & 2)))
899 connector->display_info.bpc = 8;
900 }
901
902 static int
903 nouveau_connector_late_register(struct drm_connector *connector)
904 {
905 int ret;
906
907 ret = nouveau_backlight_init(connector);
908
909 return ret;
910 }
911
912 static void
913 nouveau_connector_early_unregister(struct drm_connector *connector)
914 {
915 nouveau_backlight_fini(connector);
916 }
917
918 static int
919 nouveau_connector_get_modes(struct drm_connector *connector)
920 {
921 struct drm_device *dev = connector->dev;
922 struct nouveau_drm *drm = nouveau_drm(dev);
923 struct nouveau_connector *nv_connector = nouveau_connector(connector);
924 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
925 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
926 int ret = 0;
927
928 /* destroy the native mode, the attached monitor could have changed.
929 */
930 if (nv_connector->native_mode) {
931 drm_mode_destroy(dev, nv_connector->native_mode);
932 nv_connector->native_mode = NULL;
933 }
934
935 if (nv_connector->edid)
936 ret = drm_add_edid_modes(connector, nv_connector->edid);
937 else
938 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
939 (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
940 drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
941 struct drm_display_mode mode;
942
943 nouveau_bios_fp_mode(dev, &mode);
944 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
945 }
946
947 /* Determine display colour depth for everything except LVDS now,
948 * DP requires this before mode_valid() is called.
949 */
950 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
951 nouveau_connector_detect_depth(connector);
952
953 /* Find the native mode if this is a digital panel, if we didn't
954 * find any modes through DDC previously add the native mode to
955 * the list of modes.
956 */
957 if (!nv_connector->native_mode)
958 nv_connector->native_mode = nouveau_conn_native_mode(connector);
959 if (ret == 0 && nv_connector->native_mode) {
960 struct drm_display_mode *mode;
961
962 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
963 drm_mode_probed_add(connector, mode);
964 ret = 1;
965 }
966
967 /* Determine LVDS colour depth, must happen after determining
968 * "native" mode as some VBIOS tables require us to use the
969 * pixel clock as part of the lookup...
970 */
971 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
972 nouveau_connector_detect_depth(connector);
973
974 if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
975 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
976
977 if (nv_connector->type == DCB_CONNECTOR_LVDS ||
978 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
979 nv_connector->type == DCB_CONNECTOR_eDP)
980 ret += nouveau_connector_scaler_modes_add(connector);
981
982 return ret;
983 }
984
985 static unsigned
986 get_tmds_link_bandwidth(struct drm_connector *connector)
987 {
988 struct nouveau_connector *nv_connector = nouveau_connector(connector);
989 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
990 struct nouveau_drm *drm = nouveau_drm(connector->dev);
991 struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
992 struct drm_display_info *info = NULL;
993 unsigned duallink_scale =
994 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1;
995
996 if (drm_detect_hdmi_monitor(nv_connector->edid)) {
997 info = &nv_connector->base.display_info;
998 duallink_scale = 1;
999 }
1000
1001 if (info) {
1002 if (nouveau_hdmimhz > 0)
1003 return nouveau_hdmimhz * 1000;
1004 /* Note: these limits are conservative, some Fermi's
1005 * can do 297 MHz. Unclear how this can be determined.
1006 */
1007 if (drm->client.device.info.chipset >= 0x120) {
1008 const int max_tmds_clock =
1009 info->hdmi.scdc.scrambling.supported ?
1010 594000 : 340000;
1011 return info->max_tmds_clock ?
1012 min(info->max_tmds_clock, max_tmds_clock) :
1013 max_tmds_clock;
1014 }
1015 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
1016 return 297000;
1017 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
1018 return 225000;
1019 }
1020
1021 if (dcb->location != DCB_LOC_ON_CHIP ||
1022 drm->client.device.info.chipset >= 0x46)
1023 return 165000 * duallink_scale;
1024 else if (drm->client.device.info.chipset >= 0x40)
1025 return 155000 * duallink_scale;
1026 else if (drm->client.device.info.chipset >= 0x18)
1027 return 135000 * duallink_scale;
1028 else
1029 return 112000 * duallink_scale;
1030 }
1031
1032 static enum drm_mode_status
1033 nouveau_connector_mode_valid(struct drm_connector *connector,
1034 struct drm_display_mode *mode)
1035 {
1036 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1037 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1038 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1039 unsigned min_clock = 25000, max_clock = min_clock;
1040 unsigned clock = mode->clock;
1041
1042 switch (nv_encoder->dcb->type) {
1043 case DCB_OUTPUT_LVDS:
1044 if (nv_connector->native_mode &&
1045 (mode->hdisplay > nv_connector->native_mode->hdisplay ||
1046 mode->vdisplay > nv_connector->native_mode->vdisplay))
1047 return MODE_PANEL;
1048
1049 min_clock = 0;
1050 max_clock = 400000;
1051 break;
1052 case DCB_OUTPUT_TMDS:
1053 max_clock = get_tmds_link_bandwidth(connector);
1054 break;
1055 case DCB_OUTPUT_ANALOG:
1056 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1057 if (!max_clock)
1058 max_clock = 350000;
1059 break;
1060 case DCB_OUTPUT_TV:
1061 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1062 case DCB_OUTPUT_DP:
1063 max_clock = nv_encoder->dp.link_nr;
1064 max_clock *= nv_encoder->dp.link_bw;
1065 clock = clock * (connector->display_info.bpc * 3) / 10;
1066 break;
1067 default:
1068 BUG();
1069 return MODE_BAD;
1070 }
1071
1072 if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1073 clock *= 2;
1074
1075 if (clock < min_clock)
1076 return MODE_CLOCK_LOW;
1077
1078 if (clock > max_clock)
1079 return MODE_CLOCK_HIGH;
1080
1081 return MODE_OK;
1082 }
1083
1084 static struct drm_encoder *
1085 nouveau_connector_best_encoder(struct drm_connector *connector)
1086 {
1087 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1088
1089 if (nv_connector->detected_encoder)
1090 return to_drm_encoder(nv_connector->detected_encoder);
1091
1092 return NULL;
1093 }
1094
1095 static const struct drm_connector_helper_funcs
1096 nouveau_connector_helper_funcs = {
1097 .get_modes = nouveau_connector_get_modes,
1098 .mode_valid = nouveau_connector_mode_valid,
1099 .best_encoder = nouveau_connector_best_encoder,
1100 };
1101
1102 static const struct drm_connector_funcs
1103 nouveau_connector_funcs = {
1104 .dpms = drm_helper_connector_dpms,
1105 .reset = nouveau_conn_reset,
1106 .detect = nouveau_connector_detect,
1107 .force = nouveau_connector_force,
1108 .fill_modes = drm_helper_probe_single_connector_modes,
1109 .set_property = nouveau_connector_set_property,
1110 .destroy = nouveau_connector_destroy,
1111 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1112 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1113 .atomic_set_property = nouveau_conn_atomic_set_property,
1114 .atomic_get_property = nouveau_conn_atomic_get_property,
1115 .late_register = nouveau_connector_late_register,
1116 .early_unregister = nouveau_connector_early_unregister,
1117 };
1118
1119 static const struct drm_connector_funcs
1120 nouveau_connector_funcs_lvds = {
1121 .dpms = drm_helper_connector_dpms,
1122 .reset = nouveau_conn_reset,
1123 .detect = nouveau_connector_detect_lvds,
1124 .force = nouveau_connector_force,
1125 .fill_modes = drm_helper_probe_single_connector_modes,
1126 .set_property = nouveau_connector_set_property,
1127 .destroy = nouveau_connector_destroy,
1128 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1129 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1130 .atomic_set_property = nouveau_conn_atomic_set_property,
1131 .atomic_get_property = nouveau_conn_atomic_get_property,
1132 .late_register = nouveau_connector_late_register,
1133 .early_unregister = nouveau_connector_early_unregister,
1134 };
1135
1136 static int
1137 nouveau_connector_hotplug(struct nvif_notify *notify)
1138 {
1139 struct nouveau_connector *nv_connector =
1140 container_of(notify, typeof(*nv_connector), hpd);
1141 struct drm_connector *connector = &nv_connector->base;
1142 struct nouveau_drm *drm = nouveau_drm(connector->dev);
1143 const struct nvif_notify_conn_rep_v0 *rep = notify->data;
1144 const char *name = connector->name;
1145 struct nouveau_encoder *nv_encoder;
1146 int ret;
1147 bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1148
1149 if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1150 NV_DEBUG(drm, "service %s\n", name);
1151 drm_dp_cec_irq(&nv_connector->aux);
1152 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP)))
1153 nv50_mstm_service(nv_encoder->dp.mstm);
1154
1155 return NVIF_NOTIFY_KEEP;
1156 }
1157
1158 ret = pm_runtime_get(drm->dev->dev);
1159 if (ret == 0) {
1160 /* We can't block here if there's a pending PM request
1161 * running, as we'll deadlock nouveau_display_fini() when it
1162 * calls nvif_put() on our nvif_notify struct. So, simply
1163 * defer the hotplug event until the device finishes resuming
1164 */
1165 NV_DEBUG(drm, "Deferring HPD on %s until runtime resume\n",
1166 name);
1167 schedule_work(&drm->hpd_work);
1168
1169 pm_runtime_put_noidle(drm->dev->dev);
1170 return NVIF_NOTIFY_KEEP;
1171 } else if (ret != 1 && ret != -EACCES) {
1172 NV_WARN(drm, "HPD on %s dropped due to RPM failure: %d\n",
1173 name, ret);
1174 return NVIF_NOTIFY_DROP;
1175 }
1176
1177 if (!plugged)
1178 drm_dp_cec_unset_edid(&nv_connector->aux);
1179 NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
1180 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) {
1181 if (!plugged)
1182 nv50_mstm_remove(nv_encoder->dp.mstm);
1183 }
1184
1185 drm_helper_hpd_irq_event(connector->dev);
1186
1187 pm_runtime_mark_last_busy(drm->dev->dev);
1188 pm_runtime_put_autosuspend(drm->dev->dev);
1189 return NVIF_NOTIFY_KEEP;
1190 }
1191
1192 static ssize_t
1193 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1194 {
1195 struct nouveau_connector *nv_connector =
1196 container_of(obj, typeof(*nv_connector), aux);
1197 struct nouveau_encoder *nv_encoder;
1198 struct nvkm_i2c_aux *aux;
1199 u8 size = msg->size;
1200 int ret;
1201
1202 nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1203 if (!nv_encoder || !(aux = nv_encoder->aux))
1204 return -ENODEV;
1205 if (WARN_ON(msg->size > 16))
1206 return -E2BIG;
1207
1208 ret = nvkm_i2c_aux_acquire(aux);
1209 if (ret)
1210 return ret;
1211
1212 ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1213 msg->buffer, &size);
1214 nvkm_i2c_aux_release(aux);
1215 if (ret >= 0) {
1216 msg->reply = ret;
1217 return size;
1218 }
1219
1220 return ret;
1221 }
1222
1223 static int
1224 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1225 {
1226 switch (dcb) {
1227 case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA;
1228 case DCB_CONNECTOR_TV_0 :
1229 case DCB_CONNECTOR_TV_1 :
1230 case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV;
1231 case DCB_CONNECTOR_DMS59_0 :
1232 case DCB_CONNECTOR_DMS59_1 :
1233 case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII;
1234 case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID;
1235 case DCB_CONNECTOR_LVDS :
1236 case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1237 case DCB_CONNECTOR_DMS59_DP0:
1238 case DCB_CONNECTOR_DMS59_DP1:
1239 case DCB_CONNECTOR_DP :
1240 case DCB_CONNECTOR_USB_C : return DRM_MODE_CONNECTOR_DisplayPort;
1241 case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP;
1242 case DCB_CONNECTOR_HDMI_0 :
1243 case DCB_CONNECTOR_HDMI_1 :
1244 case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA;
1245 case DCB_CONNECTOR_WFD : return DRM_MODE_CONNECTOR_VIRTUAL;
1246 default:
1247 break;
1248 }
1249
1250 return DRM_MODE_CONNECTOR_Unknown;
1251 }
1252
1253 struct drm_connector *
1254 nouveau_connector_create(struct drm_device *dev,
1255 const struct dcb_output *dcbe)
1256 {
1257 const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1258 struct nouveau_drm *drm = nouveau_drm(dev);
1259 struct nouveau_display *disp = nouveau_display(dev);
1260 struct nouveau_connector *nv_connector = NULL;
1261 struct drm_connector *connector;
1262 struct drm_connector_list_iter conn_iter;
1263 char aux_name[48] = {0};
1264 int index = dcbe->connector;
1265 int type, ret = 0;
1266 bool dummy;
1267
1268 drm_connector_list_iter_begin(dev, &conn_iter);
1269 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1270 nv_connector = nouveau_connector(connector);
1271 if (nv_connector->index == index) {
1272 drm_connector_list_iter_end(&conn_iter);
1273 return connector;
1274 }
1275 }
1276 drm_connector_list_iter_end(&conn_iter);
1277
1278 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1279 if (!nv_connector)
1280 return ERR_PTR(-ENOMEM);
1281
1282 connector = &nv_connector->base;
1283 nv_connector->index = index;
1284
1285 /* attempt to parse vbios connector type and hotplug gpio */
1286 nv_connector->dcb = olddcb_conn(dev, index);
1287 if (nv_connector->dcb) {
1288 u32 entry = ROM16(nv_connector->dcb[0]);
1289 if (olddcb_conntab(dev)[3] >= 4)
1290 entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1291
1292 nv_connector->type = nv_connector->dcb[0];
1293 if (drm_conntype_from_dcb(nv_connector->type) ==
1294 DRM_MODE_CONNECTOR_Unknown) {
1295 NV_WARN(drm, "unknown connector type %02x\n",
1296 nv_connector->type);
1297 nv_connector->type = DCB_CONNECTOR_NONE;
1298 }
1299
1300 /* Gigabyte NX85T */
1301 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1302 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1303 nv_connector->type = DCB_CONNECTOR_DVI_I;
1304 }
1305
1306 /* Gigabyte GV-NX86T512H */
1307 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1308 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1309 nv_connector->type = DCB_CONNECTOR_DVI_I;
1310 }
1311 } else {
1312 nv_connector->type = DCB_CONNECTOR_NONE;
1313 }
1314
1315 /* no vbios data, or an unknown dcb connector type - attempt to
1316 * figure out something suitable ourselves
1317 */
1318 if (nv_connector->type == DCB_CONNECTOR_NONE) {
1319 struct nouveau_drm *drm = nouveau_drm(dev);
1320 struct dcb_table *dcbt = &drm->vbios.dcb;
1321 u32 encoders = 0;
1322 int i;
1323
1324 for (i = 0; i < dcbt->entries; i++) {
1325 if (dcbt->entry[i].connector == nv_connector->index)
1326 encoders |= (1 << dcbt->entry[i].type);
1327 }
1328
1329 if (encoders & (1 << DCB_OUTPUT_DP)) {
1330 if (encoders & (1 << DCB_OUTPUT_TMDS))
1331 nv_connector->type = DCB_CONNECTOR_DP;
1332 else
1333 nv_connector->type = DCB_CONNECTOR_eDP;
1334 } else
1335 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1336 if (encoders & (1 << DCB_OUTPUT_ANALOG))
1337 nv_connector->type = DCB_CONNECTOR_DVI_I;
1338 else
1339 nv_connector->type = DCB_CONNECTOR_DVI_D;
1340 } else
1341 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1342 nv_connector->type = DCB_CONNECTOR_VGA;
1343 } else
1344 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1345 nv_connector->type = DCB_CONNECTOR_LVDS;
1346 } else
1347 if (encoders & (1 << DCB_OUTPUT_TV)) {
1348 nv_connector->type = DCB_CONNECTOR_TV_0;
1349 }
1350 }
1351
1352 switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1353 case DRM_MODE_CONNECTOR_LVDS:
1354 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1355 if (ret) {
1356 NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1357 kfree(nv_connector);
1358 return ERR_PTR(ret);
1359 }
1360
1361 funcs = &nouveau_connector_funcs_lvds;
1362 break;
1363 case DRM_MODE_CONNECTOR_DisplayPort:
1364 case DRM_MODE_CONNECTOR_eDP:
1365 nv_connector->aux.dev = connector->kdev;
1366 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1367 snprintf(aux_name, sizeof(aux_name), "sor-%04x-%04x",
1368 dcbe->hasht, dcbe->hashm);
1369 nv_connector->aux.name = kstrdup(aux_name, GFP_KERNEL);
1370 ret = drm_dp_aux_register(&nv_connector->aux);
1371 if (ret) {
1372 NV_ERROR(drm, "failed to register aux channel\n");
1373 kfree(nv_connector);
1374 return ERR_PTR(ret);
1375 }
1376 funcs = &nouveau_connector_funcs;
1377 break;
1378 default:
1379 funcs = &nouveau_connector_funcs;
1380 break;
1381 }
1382
1383 /* HDMI 3D support */
1384 if ((disp->disp.object.oclass >= G82_DISP)
1385 && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1386 || (type == DRM_MODE_CONNECTOR_eDP)
1387 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1388 connector->stereo_allowed = true;
1389
1390 /* defaults, will get overridden in detect() */
1391 connector->interlace_allowed = false;
1392 connector->doublescan_allowed = false;
1393
1394 drm_connector_init(dev, connector, funcs, type);
1395 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1396
1397 connector->funcs->reset(connector);
1398 nouveau_conn_attach_properties(connector);
1399
1400 /* Default scaling mode */
1401 switch (nv_connector->type) {
1402 case DCB_CONNECTOR_LVDS:
1403 case DCB_CONNECTOR_LVDS_SPWG:
1404 case DCB_CONNECTOR_eDP:
1405 /* see note in nouveau_connector_set_property() */
1406 if (disp->disp.object.oclass < NV50_DISP) {
1407 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1408 break;
1409 }
1410 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1411 break;
1412 default:
1413 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1414 break;
1415 }
1416
1417 /* dithering properties */
1418 switch (nv_connector->type) {
1419 case DCB_CONNECTOR_TV_0:
1420 case DCB_CONNECTOR_TV_1:
1421 case DCB_CONNECTOR_TV_3:
1422 case DCB_CONNECTOR_VGA:
1423 break;
1424 default:
1425 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1426 break;
1427 }
1428
1429 switch (type) {
1430 case DRM_MODE_CONNECTOR_DisplayPort:
1431 case DRM_MODE_CONNECTOR_eDP:
1432 drm_dp_cec_register_connector(&nv_connector->aux, connector);
1433 break;
1434 }
1435
1436 ret = nvif_notify_init(&disp->disp.object, nouveau_connector_hotplug,
1437 true, NV04_DISP_NTFY_CONN,
1438 &(struct nvif_notify_conn_req_v0) {
1439 .mask = NVIF_NOTIFY_CONN_V0_ANY,
1440 .conn = index,
1441 },
1442 sizeof(struct nvif_notify_conn_req_v0),
1443 sizeof(struct nvif_notify_conn_rep_v0),
1444 &nv_connector->hpd);
1445 if (ret)
1446 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1447 else
1448 connector->polled = DRM_CONNECTOR_POLL_HPD;
1449
1450 drm_connector_register(connector);
1451 return connector;
1452 }
Linux with added FPC-III support