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/drmP.h>
33 #include <drm/drm_atomic_helper.h>
34 #include <drm/drm_edid.h>
35 #include <drm/drm_crtc_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 *
nouveau_conn_native_mode(struct drm_connector * connector)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
nouveau_conn_atomic_get_property(struct drm_connector * connector,const struct drm_connector_state * state,struct drm_property * property,u64 * val)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
nouveau_conn_atomic_set_property(struct drm_connector * connector,struct drm_connector_state * state,struct drm_property * property,u64 val)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
nouveau_conn_atomic_destroy_state(struct drm_connector * connector,struct drm_connector_state * state)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 *
nouveau_conn_atomic_duplicate_state(struct drm_connector * connector)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
nouveau_conn_reset(struct drm_connector * connector)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 __drm_atomic_helper_connector_destroy_state(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
nouveau_conn_attach_properties(struct drm_connector * connector)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 *
find_encoder(struct drm_connector * connector,int type)364 find_encoder(struct drm_connector *connector, int type)
365 {
366 struct nouveau_encoder *nv_encoder;
367 struct drm_encoder *enc;
368 int i;
369
370 drm_connector_for_each_possible_encoder(connector, enc, i) {
371 nv_encoder = nouveau_encoder(enc);
372
373 if (type == DCB_OUTPUT_ANY ||
374 (nv_encoder->dcb && nv_encoder->dcb->type == type))
375 return nv_encoder;
376 }
377
378 return NULL;
379 }
380
381 struct nouveau_connector *
nouveau_encoder_connector_get(struct nouveau_encoder * encoder)382 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
383 {
384 struct drm_device *dev = to_drm_encoder(encoder)->dev;
385 struct drm_connector *drm_connector;
386
387 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
388 if (drm_connector->encoder == to_drm_encoder(encoder))
389 return nouveau_connector(drm_connector);
390 }
391
392 return NULL;
393 }
394
395 static void
nouveau_connector_destroy(struct drm_connector * connector)396 nouveau_connector_destroy(struct drm_connector *connector)
397 {
398 struct nouveau_connector *nv_connector = nouveau_connector(connector);
399 nvif_notify_fini(&nv_connector->hpd);
400 kfree(nv_connector->edid);
401 drm_connector_unregister(connector);
402 drm_connector_cleanup(connector);
403 if (nv_connector->aux.transfer)
404 drm_dp_aux_unregister(&nv_connector->aux);
405 kfree(connector);
406 }
407
408 static struct nouveau_encoder *
nouveau_connector_ddc_detect(struct drm_connector * connector)409 nouveau_connector_ddc_detect(struct drm_connector *connector)
410 {
411 struct drm_device *dev = connector->dev;
412 struct nouveau_encoder *nv_encoder = NULL, *found = NULL;
413 struct drm_encoder *encoder;
414 int i, ret;
415 bool switcheroo_ddc = false;
416
417 drm_connector_for_each_possible_encoder(connector, encoder, i) {
418 nv_encoder = nouveau_encoder(encoder);
419
420 switch (nv_encoder->dcb->type) {
421 case DCB_OUTPUT_DP:
422 ret = nouveau_dp_detect(nv_encoder);
423 if (ret == NOUVEAU_DP_MST)
424 return NULL;
425 else if (ret == NOUVEAU_DP_SST)
426 found = nv_encoder;
427
428 break;
429 case DCB_OUTPUT_LVDS:
430 switcheroo_ddc = !!(vga_switcheroo_handler_flags() &
431 VGA_SWITCHEROO_CAN_SWITCH_DDC);
432 /* fall-through */
433 default:
434 if (!nv_encoder->i2c)
435 break;
436
437 if (switcheroo_ddc)
438 vga_switcheroo_lock_ddc(dev->pdev);
439 if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
440 found = nv_encoder;
441 if (switcheroo_ddc)
442 vga_switcheroo_unlock_ddc(dev->pdev);
443
444 break;
445 }
446 if (found)
447 break;
448 }
449
450 return found;
451 }
452
453 static struct nouveau_encoder *
nouveau_connector_of_detect(struct drm_connector * connector)454 nouveau_connector_of_detect(struct drm_connector *connector)
455 {
456 #ifdef __powerpc__
457 struct drm_device *dev = connector->dev;
458 struct nouveau_connector *nv_connector = nouveau_connector(connector);
459 struct nouveau_encoder *nv_encoder;
460 struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
461
462 if (!dn ||
463 !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
464 (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
465 return NULL;
466
467 for_each_child_of_node(dn, cn) {
468 const char *name = of_get_property(cn, "name", NULL);
469 const void *edid = of_get_property(cn, "EDID", NULL);
470 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
471
472 if (nv_encoder->dcb->i2c_index == idx && edid) {
473 nv_connector->edid =
474 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
475 of_node_put(cn);
476 return nv_encoder;
477 }
478 }
479 #endif
480 return NULL;
481 }
482
483 static void
nouveau_connector_set_encoder(struct drm_connector * connector,struct nouveau_encoder * nv_encoder)484 nouveau_connector_set_encoder(struct drm_connector *connector,
485 struct nouveau_encoder *nv_encoder)
486 {
487 struct nouveau_connector *nv_connector = nouveau_connector(connector);
488 struct nouveau_drm *drm = nouveau_drm(connector->dev);
489 struct drm_device *dev = connector->dev;
490
491 if (nv_connector->detected_encoder == nv_encoder)
492 return;
493 nv_connector->detected_encoder = nv_encoder;
494
495 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
496 connector->interlace_allowed = true;
497 connector->doublescan_allowed = true;
498 } else
499 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
500 nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
501 connector->doublescan_allowed = false;
502 connector->interlace_allowed = false;
503 } else {
504 connector->doublescan_allowed = true;
505 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
506 (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
507 (dev->pdev->device & 0x0ff0) != 0x0100 &&
508 (dev->pdev->device & 0x0ff0) != 0x0150))
509 /* HW is broken */
510 connector->interlace_allowed = false;
511 else
512 connector->interlace_allowed = true;
513 }
514
515 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
516 drm_object_property_set_value(&connector->base,
517 dev->mode_config.dvi_i_subconnector_property,
518 nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
519 DRM_MODE_SUBCONNECTOR_DVID :
520 DRM_MODE_SUBCONNECTOR_DVIA);
521 }
522 }
523
524 static enum drm_connector_status
nouveau_connector_detect(struct drm_connector * connector,bool force)525 nouveau_connector_detect(struct drm_connector *connector, bool force)
526 {
527 struct drm_device *dev = connector->dev;
528 struct nouveau_drm *drm = nouveau_drm(dev);
529 struct nouveau_connector *nv_connector = nouveau_connector(connector);
530 struct nouveau_encoder *nv_encoder = NULL;
531 struct nouveau_encoder *nv_partner;
532 struct i2c_adapter *i2c;
533 int type;
534 int ret;
535 enum drm_connector_status conn_status = connector_status_disconnected;
536
537 /* Cleanup the previous EDID block. */
538 if (nv_connector->edid) {
539 drm_connector_update_edid_property(connector, NULL);
540 kfree(nv_connector->edid);
541 nv_connector->edid = NULL;
542 }
543
544 /* Outputs are only polled while runtime active, so resuming the
545 * device here is unnecessary (and would deadlock upon runtime suspend
546 * because it waits for polling to finish). We do however, want to
547 * prevent the autosuspend timer from elapsing during this operation
548 * if possible.
549 */
550 if (drm_kms_helper_is_poll_worker()) {
551 pm_runtime_get_noresume(dev->dev);
552 } else {
553 ret = pm_runtime_get_sync(dev->dev);
554 if (ret < 0 && ret != -EACCES)
555 return conn_status;
556 }
557
558 nv_encoder = nouveau_connector_ddc_detect(connector);
559 if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
560 if ((vga_switcheroo_handler_flags() &
561 VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
562 nv_connector->type == DCB_CONNECTOR_LVDS)
563 nv_connector->edid = drm_get_edid_switcheroo(connector,
564 i2c);
565 else
566 nv_connector->edid = drm_get_edid(connector, i2c);
567
568 drm_connector_update_edid_property(connector,
569 nv_connector->edid);
570 if (!nv_connector->edid) {
571 NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
572 connector->name);
573 goto detect_analog;
574 }
575
576 /* Override encoder type for DVI-I based on whether EDID
577 * says the display is digital or analog, both use the
578 * same i2c channel so the value returned from ddc_detect
579 * isn't necessarily correct.
580 */
581 nv_partner = NULL;
582 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
583 nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
584 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
585 nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
586
587 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
588 nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
589 (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
590 nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
591 if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
592 type = DCB_OUTPUT_TMDS;
593 else
594 type = DCB_OUTPUT_ANALOG;
595
596 nv_encoder = find_encoder(connector, type);
597 }
598
599 nouveau_connector_set_encoder(connector, nv_encoder);
600 conn_status = connector_status_connected;
601 goto out;
602 }
603
604 nv_encoder = nouveau_connector_of_detect(connector);
605 if (nv_encoder) {
606 nouveau_connector_set_encoder(connector, nv_encoder);
607 conn_status = connector_status_connected;
608 goto out;
609 }
610
611 detect_analog:
612 nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
613 if (!nv_encoder && !nouveau_tv_disable)
614 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
615 if (nv_encoder && force) {
616 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
617 const struct drm_encoder_helper_funcs *helper =
618 encoder->helper_private;
619
620 if (helper->detect(encoder, connector) ==
621 connector_status_connected) {
622 nouveau_connector_set_encoder(connector, nv_encoder);
623 conn_status = connector_status_connected;
624 goto out;
625 }
626
627 }
628
629 out:
630
631 pm_runtime_mark_last_busy(dev->dev);
632 pm_runtime_put_autosuspend(dev->dev);
633
634 return conn_status;
635 }
636
637 static enum drm_connector_status
nouveau_connector_detect_lvds(struct drm_connector * connector,bool force)638 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
639 {
640 struct drm_device *dev = connector->dev;
641 struct nouveau_drm *drm = nouveau_drm(dev);
642 struct nouveau_connector *nv_connector = nouveau_connector(connector);
643 struct nouveau_encoder *nv_encoder = NULL;
644 enum drm_connector_status status = connector_status_disconnected;
645
646 /* Cleanup the previous EDID block. */
647 if (nv_connector->edid) {
648 drm_connector_update_edid_property(connector, NULL);
649 kfree(nv_connector->edid);
650 nv_connector->edid = NULL;
651 }
652
653 nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
654 if (!nv_encoder)
655 return connector_status_disconnected;
656
657 /* Try retrieving EDID via DDC */
658 if (!drm->vbios.fp_no_ddc) {
659 status = nouveau_connector_detect(connector, force);
660 if (status == connector_status_connected)
661 goto out;
662 }
663
664 /* On some laptops (Sony, i'm looking at you) there appears to
665 * be no direct way of accessing the panel's EDID. The only
666 * option available to us appears to be to ask ACPI for help..
667 *
668 * It's important this check's before trying straps, one of the
669 * said manufacturer's laptops are configured in such a way
670 * the nouveau decides an entry in the VBIOS FP mode table is
671 * valid - it's not (rh#613284)
672 */
673 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
674 if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
675 status = connector_status_connected;
676 goto out;
677 }
678 }
679
680 /* If no EDID found above, and the VBIOS indicates a hardcoded
681 * modeline is avalilable for the panel, set it as the panel's
682 * native mode and exit.
683 */
684 if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
685 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
686 status = connector_status_connected;
687 goto out;
688 }
689
690 /* Still nothing, some VBIOS images have a hardcoded EDID block
691 * stored for the panel stored in them.
692 */
693 if (!drm->vbios.fp_no_ddc) {
694 struct edid *edid =
695 (struct edid *)nouveau_bios_embedded_edid(dev);
696 if (edid) {
697 nv_connector->edid =
698 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
699 if (nv_connector->edid)
700 status = connector_status_connected;
701 }
702 }
703
704 out:
705 #if defined(CONFIG_ACPI_BUTTON) || \
706 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
707 if (status == connector_status_connected &&
708 !nouveau_ignorelid && !acpi_lid_open())
709 status = connector_status_unknown;
710 #endif
711
712 drm_connector_update_edid_property(connector, nv_connector->edid);
713 nouveau_connector_set_encoder(connector, nv_encoder);
714 return status;
715 }
716
717 static void
nouveau_connector_force(struct drm_connector * connector)718 nouveau_connector_force(struct drm_connector *connector)
719 {
720 struct nouveau_drm *drm = nouveau_drm(connector->dev);
721 struct nouveau_connector *nv_connector = nouveau_connector(connector);
722 struct nouveau_encoder *nv_encoder;
723 int type;
724
725 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
726 if (connector->force == DRM_FORCE_ON_DIGITAL)
727 type = DCB_OUTPUT_TMDS;
728 else
729 type = DCB_OUTPUT_ANALOG;
730 } else
731 type = DCB_OUTPUT_ANY;
732
733 nv_encoder = find_encoder(connector, type);
734 if (!nv_encoder) {
735 NV_ERROR(drm, "can't find encoder to force %s on!\n",
736 connector->name);
737 connector->status = connector_status_disconnected;
738 return;
739 }
740
741 nouveau_connector_set_encoder(connector, nv_encoder);
742 }
743
744 static int
nouveau_connector_set_property(struct drm_connector * connector,struct drm_property * property,uint64_t value)745 nouveau_connector_set_property(struct drm_connector *connector,
746 struct drm_property *property, uint64_t value)
747 {
748 struct nouveau_conn_atom *asyc = nouveau_conn_atom(connector->state);
749 struct nouveau_connector *nv_connector = nouveau_connector(connector);
750 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
751 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
752 int ret;
753
754 ret = connector->funcs->atomic_set_property(&nv_connector->base,
755 &asyc->state,
756 property, value);
757 if (ret) {
758 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
759 return get_slave_funcs(encoder)->set_property(
760 encoder, connector, property, value);
761 return ret;
762 }
763
764 nv_connector->scaling_mode = asyc->scaler.mode;
765 nv_connector->dithering_mode = asyc->dither.mode;
766
767 if (connector->encoder && connector->encoder->crtc) {
768 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
769 &connector->encoder->crtc->mode,
770 connector->encoder->crtc->x,
771 connector->encoder->crtc->y,
772 NULL);
773 if (!ret)
774 return -EINVAL;
775 }
776
777 return 0;
778 }
779
780 struct moderec {
781 int hdisplay;
782 int vdisplay;
783 };
784
785 static struct moderec scaler_modes[] = {
786 { 1920, 1200 },
787 { 1920, 1080 },
788 { 1680, 1050 },
789 { 1600, 1200 },
790 { 1400, 1050 },
791 { 1280, 1024 },
792 { 1280, 960 },
793 { 1152, 864 },
794 { 1024, 768 },
795 { 800, 600 },
796 { 720, 400 },
797 { 640, 480 },
798 { 640, 400 },
799 { 640, 350 },
800 {}
801 };
802
803 static int
nouveau_connector_scaler_modes_add(struct drm_connector * connector)804 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
805 {
806 struct nouveau_connector *nv_connector = nouveau_connector(connector);
807 struct drm_display_mode *native = nv_connector->native_mode, *m;
808 struct drm_device *dev = connector->dev;
809 struct moderec *mode = &scaler_modes[0];
810 int modes = 0;
811
812 if (!native)
813 return 0;
814
815 while (mode->hdisplay) {
816 if (mode->hdisplay <= native->hdisplay &&
817 mode->vdisplay <= native->vdisplay &&
818 (mode->hdisplay != native->hdisplay ||
819 mode->vdisplay != native->vdisplay)) {
820 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
821 drm_mode_vrefresh(native), false,
822 false, false);
823 if (!m)
824 continue;
825
826 drm_mode_probed_add(connector, m);
827 modes++;
828 }
829
830 mode++;
831 }
832
833 return modes;
834 }
835
836 static void
nouveau_connector_detect_depth(struct drm_connector * connector)837 nouveau_connector_detect_depth(struct drm_connector *connector)
838 {
839 struct nouveau_drm *drm = nouveau_drm(connector->dev);
840 struct nouveau_connector *nv_connector = nouveau_connector(connector);
841 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
842 struct nvbios *bios = &drm->vbios;
843 struct drm_display_mode *mode = nv_connector->native_mode;
844 bool duallink;
845
846 /* if the edid is feeling nice enough to provide this info, use it */
847 if (nv_connector->edid && connector->display_info.bpc)
848 return;
849
850 /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
851 if (nv_connector->type == DCB_CONNECTOR_eDP) {
852 connector->display_info.bpc = 6;
853 return;
854 }
855
856 /* we're out of options unless we're LVDS, default to 8bpc */
857 if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
858 connector->display_info.bpc = 8;
859 return;
860 }
861
862 connector->display_info.bpc = 6;
863
864 /* LVDS: panel straps */
865 if (bios->fp_no_ddc) {
866 if (bios->fp.if_is_24bit)
867 connector->display_info.bpc = 8;
868 return;
869 }
870
871 /* LVDS: DDC panel, need to first determine the number of links to
872 * know which if_is_24bit flag to check...
873 */
874 if (nv_connector->edid &&
875 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
876 duallink = ((u8 *)nv_connector->edid)[121] == 2;
877 else
878 duallink = mode->clock >= bios->fp.duallink_transition_clk;
879
880 if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
881 ( duallink && (bios->fp.strapless_is_24bit & 2)))
882 connector->display_info.bpc = 8;
883 }
884
885 static int
nouveau_connector_get_modes(struct drm_connector * connector)886 nouveau_connector_get_modes(struct drm_connector *connector)
887 {
888 struct drm_device *dev = connector->dev;
889 struct nouveau_drm *drm = nouveau_drm(dev);
890 struct nouveau_connector *nv_connector = nouveau_connector(connector);
891 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
892 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
893 int ret = 0;
894
895 /* destroy the native mode, the attached monitor could have changed.
896 */
897 if (nv_connector->native_mode) {
898 drm_mode_destroy(dev, nv_connector->native_mode);
899 nv_connector->native_mode = NULL;
900 }
901
902 if (nv_connector->edid)
903 ret = drm_add_edid_modes(connector, nv_connector->edid);
904 else
905 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
906 (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
907 drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
908 struct drm_display_mode mode;
909
910 nouveau_bios_fp_mode(dev, &mode);
911 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
912 }
913
914 /* Determine display colour depth for everything except LVDS now,
915 * DP requires this before mode_valid() is called.
916 */
917 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
918 nouveau_connector_detect_depth(connector);
919
920 /* Find the native mode if this is a digital panel, if we didn't
921 * find any modes through DDC previously add the native mode to
922 * the list of modes.
923 */
924 if (!nv_connector->native_mode)
925 nv_connector->native_mode = nouveau_conn_native_mode(connector);
926 if (ret == 0 && nv_connector->native_mode) {
927 struct drm_display_mode *mode;
928
929 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
930 drm_mode_probed_add(connector, mode);
931 ret = 1;
932 }
933
934 /* Determine LVDS colour depth, must happen after determining
935 * "native" mode as some VBIOS tables require us to use the
936 * pixel clock as part of the lookup...
937 */
938 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
939 nouveau_connector_detect_depth(connector);
940
941 if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
942 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
943
944 if (nv_connector->type == DCB_CONNECTOR_LVDS ||
945 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
946 nv_connector->type == DCB_CONNECTOR_eDP)
947 ret += nouveau_connector_scaler_modes_add(connector);
948
949 return ret;
950 }
951
952 static unsigned
get_tmds_link_bandwidth(struct drm_connector * connector,bool hdmi)953 get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi)
954 {
955 struct nouveau_connector *nv_connector = nouveau_connector(connector);
956 struct nouveau_drm *drm = nouveau_drm(connector->dev);
957 struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
958
959 if (hdmi) {
960 if (nouveau_hdmimhz > 0)
961 return nouveau_hdmimhz * 1000;
962 /* Note: these limits are conservative, some Fermi's
963 * can do 297 MHz. Unclear how this can be determined.
964 */
965 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
966 return 297000;
967 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
968 return 225000;
969 }
970 if (dcb->location != DCB_LOC_ON_CHIP ||
971 drm->client.device.info.chipset >= 0x46)
972 return 165000;
973 else if (drm->client.device.info.chipset >= 0x40)
974 return 155000;
975 else if (drm->client.device.info.chipset >= 0x18)
976 return 135000;
977 else
978 return 112000;
979 }
980
981 static enum drm_mode_status
nouveau_connector_mode_valid(struct drm_connector * connector,struct drm_display_mode * mode)982 nouveau_connector_mode_valid(struct drm_connector *connector,
983 struct drm_display_mode *mode)
984 {
985 struct nouveau_connector *nv_connector = nouveau_connector(connector);
986 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
987 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
988 unsigned min_clock = 25000, max_clock = min_clock;
989 unsigned clock = mode->clock;
990 bool hdmi;
991
992 switch (nv_encoder->dcb->type) {
993 case DCB_OUTPUT_LVDS:
994 if (nv_connector->native_mode &&
995 (mode->hdisplay > nv_connector->native_mode->hdisplay ||
996 mode->vdisplay > nv_connector->native_mode->vdisplay))
997 return MODE_PANEL;
998
999 min_clock = 0;
1000 max_clock = 400000;
1001 break;
1002 case DCB_OUTPUT_TMDS:
1003 hdmi = drm_detect_hdmi_monitor(nv_connector->edid);
1004 max_clock = get_tmds_link_bandwidth(connector, hdmi);
1005 if (!hdmi && nouveau_duallink &&
1006 nv_encoder->dcb->duallink_possible)
1007 max_clock *= 2;
1008 break;
1009 case DCB_OUTPUT_ANALOG:
1010 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1011 if (!max_clock)
1012 max_clock = 350000;
1013 break;
1014 case DCB_OUTPUT_TV:
1015 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1016 case DCB_OUTPUT_DP:
1017 max_clock = nv_encoder->dp.link_nr;
1018 max_clock *= nv_encoder->dp.link_bw;
1019 clock = clock * (connector->display_info.bpc * 3) / 10;
1020 break;
1021 default:
1022 BUG();
1023 return MODE_BAD;
1024 }
1025
1026 if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1027 clock *= 2;
1028
1029 if (clock < min_clock)
1030 return MODE_CLOCK_LOW;
1031
1032 if (clock > max_clock)
1033 return MODE_CLOCK_HIGH;
1034
1035 return MODE_OK;
1036 }
1037
1038 static struct drm_encoder *
nouveau_connector_best_encoder(struct drm_connector * connector)1039 nouveau_connector_best_encoder(struct drm_connector *connector)
1040 {
1041 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1042
1043 if (nv_connector->detected_encoder)
1044 return to_drm_encoder(nv_connector->detected_encoder);
1045
1046 return NULL;
1047 }
1048
1049 static const struct drm_connector_helper_funcs
1050 nouveau_connector_helper_funcs = {
1051 .get_modes = nouveau_connector_get_modes,
1052 .mode_valid = nouveau_connector_mode_valid,
1053 .best_encoder = nouveau_connector_best_encoder,
1054 };
1055
1056 static const struct drm_connector_funcs
1057 nouveau_connector_funcs = {
1058 .dpms = drm_helper_connector_dpms,
1059 .reset = nouveau_conn_reset,
1060 .detect = nouveau_connector_detect,
1061 .force = nouveau_connector_force,
1062 .fill_modes = drm_helper_probe_single_connector_modes,
1063 .set_property = nouveau_connector_set_property,
1064 .destroy = nouveau_connector_destroy,
1065 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1066 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1067 .atomic_set_property = nouveau_conn_atomic_set_property,
1068 .atomic_get_property = nouveau_conn_atomic_get_property,
1069 };
1070
1071 static const struct drm_connector_funcs
1072 nouveau_connector_funcs_lvds = {
1073 .dpms = drm_helper_connector_dpms,
1074 .reset = nouveau_conn_reset,
1075 .detect = nouveau_connector_detect_lvds,
1076 .force = nouveau_connector_force,
1077 .fill_modes = drm_helper_probe_single_connector_modes,
1078 .set_property = nouveau_connector_set_property,
1079 .destroy = nouveau_connector_destroy,
1080 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1081 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1082 .atomic_set_property = nouveau_conn_atomic_set_property,
1083 .atomic_get_property = nouveau_conn_atomic_get_property,
1084 };
1085
1086 static int
nouveau_connector_hotplug(struct nvif_notify * notify)1087 nouveau_connector_hotplug(struct nvif_notify *notify)
1088 {
1089 struct nouveau_connector *nv_connector =
1090 container_of(notify, typeof(*nv_connector), hpd);
1091 struct drm_connector *connector = &nv_connector->base;
1092 struct nouveau_drm *drm = nouveau_drm(connector->dev);
1093 const struct nvif_notify_conn_rep_v0 *rep = notify->data;
1094 const char *name = connector->name;
1095 struct nouveau_encoder *nv_encoder;
1096 int ret;
1097
1098 ret = pm_runtime_get(drm->dev->dev);
1099 if (ret == 0) {
1100 /* We can't block here if there's a pending PM request
1101 * running, as we'll deadlock nouveau_display_fini() when it
1102 * calls nvif_put() on our nvif_notify struct. So, simply
1103 * defer the hotplug event until the device finishes resuming
1104 */
1105 NV_DEBUG(drm, "Deferring HPD on %s until runtime resume\n",
1106 name);
1107 schedule_work(&drm->hpd_work);
1108
1109 pm_runtime_put_noidle(drm->dev->dev);
1110 return NVIF_NOTIFY_KEEP;
1111 } else if (ret != 1 && ret != -EACCES) {
1112 NV_WARN(drm, "HPD on %s dropped due to RPM failure: %d\n",
1113 name, ret);
1114 return NVIF_NOTIFY_DROP;
1115 }
1116
1117 if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1118 NV_DEBUG(drm, "service %s\n", name);
1119 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP)))
1120 nv50_mstm_service(nv_encoder->dp.mstm);
1121 } else {
1122 bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1123
1124 NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
1125 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) {
1126 if (!plugged)
1127 nv50_mstm_remove(nv_encoder->dp.mstm);
1128 }
1129
1130 drm_helper_hpd_irq_event(connector->dev);
1131 }
1132
1133 pm_runtime_mark_last_busy(drm->dev->dev);
1134 pm_runtime_put_autosuspend(drm->dev->dev);
1135 return NVIF_NOTIFY_KEEP;
1136 }
1137
1138 static ssize_t
nouveau_connector_aux_xfer(struct drm_dp_aux * obj,struct drm_dp_aux_msg * msg)1139 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1140 {
1141 struct nouveau_connector *nv_connector =
1142 container_of(obj, typeof(*nv_connector), aux);
1143 struct nouveau_encoder *nv_encoder;
1144 struct nvkm_i2c_aux *aux;
1145 u8 size = msg->size;
1146 int ret;
1147
1148 nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1149 if (!nv_encoder || !(aux = nv_encoder->aux))
1150 return -ENODEV;
1151 if (WARN_ON(msg->size > 16))
1152 return -E2BIG;
1153
1154 ret = nvkm_i2c_aux_acquire(aux);
1155 if (ret)
1156 return ret;
1157
1158 ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1159 msg->buffer, &size);
1160 nvkm_i2c_aux_release(aux);
1161 if (ret >= 0) {
1162 msg->reply = ret;
1163 return size;
1164 }
1165
1166 return ret;
1167 }
1168
1169 static int
drm_conntype_from_dcb(enum dcb_connector_type dcb)1170 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1171 {
1172 switch (dcb) {
1173 case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA;
1174 case DCB_CONNECTOR_TV_0 :
1175 case DCB_CONNECTOR_TV_1 :
1176 case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV;
1177 case DCB_CONNECTOR_DMS59_0 :
1178 case DCB_CONNECTOR_DMS59_1 :
1179 case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII;
1180 case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID;
1181 case DCB_CONNECTOR_LVDS :
1182 case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1183 case DCB_CONNECTOR_DMS59_DP0:
1184 case DCB_CONNECTOR_DMS59_DP1:
1185 case DCB_CONNECTOR_DP : return DRM_MODE_CONNECTOR_DisplayPort;
1186 case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP;
1187 case DCB_CONNECTOR_HDMI_0 :
1188 case DCB_CONNECTOR_HDMI_1 :
1189 case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA;
1190 case DCB_CONNECTOR_WFD : return DRM_MODE_CONNECTOR_VIRTUAL;
1191 default:
1192 break;
1193 }
1194
1195 return DRM_MODE_CONNECTOR_Unknown;
1196 }
1197
1198 struct drm_connector *
nouveau_connector_create(struct drm_device * dev,int index)1199 nouveau_connector_create(struct drm_device *dev, int index)
1200 {
1201 const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1202 struct nouveau_drm *drm = nouveau_drm(dev);
1203 struct nouveau_display *disp = nouveau_display(dev);
1204 struct nouveau_connector *nv_connector = NULL;
1205 struct drm_connector *connector;
1206 struct drm_connector_list_iter conn_iter;
1207 int type, ret = 0;
1208 bool dummy;
1209
1210 drm_connector_list_iter_begin(dev, &conn_iter);
1211 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1212 nv_connector = nouveau_connector(connector);
1213 if (nv_connector->index == index) {
1214 drm_connector_list_iter_end(&conn_iter);
1215 return connector;
1216 }
1217 }
1218 drm_connector_list_iter_end(&conn_iter);
1219
1220 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1221 if (!nv_connector)
1222 return ERR_PTR(-ENOMEM);
1223
1224 connector = &nv_connector->base;
1225 nv_connector->index = index;
1226
1227 /* attempt to parse vbios connector type and hotplug gpio */
1228 nv_connector->dcb = olddcb_conn(dev, index);
1229 if (nv_connector->dcb) {
1230 u32 entry = ROM16(nv_connector->dcb[0]);
1231 if (olddcb_conntab(dev)[3] >= 4)
1232 entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1233
1234 nv_connector->type = nv_connector->dcb[0];
1235 if (drm_conntype_from_dcb(nv_connector->type) ==
1236 DRM_MODE_CONNECTOR_Unknown) {
1237 NV_WARN(drm, "unknown connector type %02x\n",
1238 nv_connector->type);
1239 nv_connector->type = DCB_CONNECTOR_NONE;
1240 }
1241
1242 /* Gigabyte NX85T */
1243 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1244 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1245 nv_connector->type = DCB_CONNECTOR_DVI_I;
1246 }
1247
1248 /* Gigabyte GV-NX86T512H */
1249 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1250 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1251 nv_connector->type = DCB_CONNECTOR_DVI_I;
1252 }
1253 } else {
1254 nv_connector->type = DCB_CONNECTOR_NONE;
1255 }
1256
1257 /* no vbios data, or an unknown dcb connector type - attempt to
1258 * figure out something suitable ourselves
1259 */
1260 if (nv_connector->type == DCB_CONNECTOR_NONE) {
1261 struct nouveau_drm *drm = nouveau_drm(dev);
1262 struct dcb_table *dcbt = &drm->vbios.dcb;
1263 u32 encoders = 0;
1264 int i;
1265
1266 for (i = 0; i < dcbt->entries; i++) {
1267 if (dcbt->entry[i].connector == nv_connector->index)
1268 encoders |= (1 << dcbt->entry[i].type);
1269 }
1270
1271 if (encoders & (1 << DCB_OUTPUT_DP)) {
1272 if (encoders & (1 << DCB_OUTPUT_TMDS))
1273 nv_connector->type = DCB_CONNECTOR_DP;
1274 else
1275 nv_connector->type = DCB_CONNECTOR_eDP;
1276 } else
1277 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1278 if (encoders & (1 << DCB_OUTPUT_ANALOG))
1279 nv_connector->type = DCB_CONNECTOR_DVI_I;
1280 else
1281 nv_connector->type = DCB_CONNECTOR_DVI_D;
1282 } else
1283 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1284 nv_connector->type = DCB_CONNECTOR_VGA;
1285 } else
1286 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1287 nv_connector->type = DCB_CONNECTOR_LVDS;
1288 } else
1289 if (encoders & (1 << DCB_OUTPUT_TV)) {
1290 nv_connector->type = DCB_CONNECTOR_TV_0;
1291 }
1292 }
1293
1294 switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1295 case DRM_MODE_CONNECTOR_LVDS:
1296 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1297 if (ret) {
1298 NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1299 kfree(nv_connector);
1300 return ERR_PTR(ret);
1301 }
1302
1303 funcs = &nouveau_connector_funcs_lvds;
1304 break;
1305 case DRM_MODE_CONNECTOR_DisplayPort:
1306 case DRM_MODE_CONNECTOR_eDP:
1307 nv_connector->aux.dev = dev->dev;
1308 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1309 ret = drm_dp_aux_register(&nv_connector->aux);
1310 if (ret) {
1311 NV_ERROR(drm, "failed to register aux channel\n");
1312 kfree(nv_connector);
1313 return ERR_PTR(ret);
1314 }
1315
1316 funcs = &nouveau_connector_funcs;
1317 break;
1318 default:
1319 funcs = &nouveau_connector_funcs;
1320 break;
1321 }
1322
1323 /* HDMI 3D support */
1324 if ((disp->disp.object.oclass >= G82_DISP)
1325 && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1326 || (type == DRM_MODE_CONNECTOR_eDP)
1327 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1328 connector->stereo_allowed = true;
1329
1330 /* defaults, will get overridden in detect() */
1331 connector->interlace_allowed = false;
1332 connector->doublescan_allowed = false;
1333
1334 drm_connector_init(dev, connector, funcs, type);
1335 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1336
1337 connector->funcs->reset(connector);
1338 nouveau_conn_attach_properties(connector);
1339
1340 /* Default scaling mode */
1341 switch (nv_connector->type) {
1342 case DCB_CONNECTOR_LVDS:
1343 case DCB_CONNECTOR_LVDS_SPWG:
1344 case DCB_CONNECTOR_eDP:
1345 /* see note in nouveau_connector_set_property() */
1346 if (disp->disp.object.oclass < NV50_DISP) {
1347 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1348 break;
1349 }
1350 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1351 break;
1352 default:
1353 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1354 break;
1355 }
1356
1357 /* dithering properties */
1358 switch (nv_connector->type) {
1359 case DCB_CONNECTOR_TV_0:
1360 case DCB_CONNECTOR_TV_1:
1361 case DCB_CONNECTOR_TV_3:
1362 case DCB_CONNECTOR_VGA:
1363 break;
1364 default:
1365 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1366 break;
1367 }
1368
1369 ret = nvif_notify_init(&disp->disp.object, nouveau_connector_hotplug,
1370 true, NV04_DISP_NTFY_CONN,
1371 &(struct nvif_notify_conn_req_v0) {
1372 .mask = NVIF_NOTIFY_CONN_V0_ANY,
1373 .conn = index,
1374 },
1375 sizeof(struct nvif_notify_conn_req_v0),
1376 sizeof(struct nvif_notify_conn_rep_v0),
1377 &nv_connector->hpd);
1378 if (ret)
1379 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1380 else
1381 connector->polled = DRM_CONNECTOR_POLL_HPD;
1382
1383 drm_connector_register(connector);
1384 return connector;
1385 }
1386
