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 "dispnv50/disp.h"
42 #include "nouveau_acpi.h"
43
44 #include "nouveau_display.h"
45 #include "nouveau_connector.h"
46 #include "nouveau_encoder.h"
47 #include "nouveau_crtc.h"
48
49 #include <nvif/class.h>
50 #include <nvif/if0011.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 if (helper->mode_valid(connector, mode) != MODE_OK ||
63 (mode->flags & DRM_MODE_FLAG_INTERLACE))
64 continue;
65
66 /* Use preferred mode if there is one.. */
67 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
68 NV_DEBUG(drm, "native mode from preferred\n");
69 return drm_mode_duplicate(dev, mode);
70 }
71
72 /* Otherwise, take the resolution with the largest width, then
73 * height, then vertical refresh
74 */
75 if (mode->hdisplay < high_w)
76 continue;
77
78 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
79 continue;
80
81 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
82 drm_mode_vrefresh(mode) < high_v)
83 continue;
84
85 high_w = mode->hdisplay;
86 high_h = mode->vdisplay;
87 high_v = drm_mode_vrefresh(mode);
88 largest = mode;
89 }
90
91 NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
92 high_w, high_h, high_v);
93 return largest ? drm_mode_duplicate(dev, largest) : NULL;
94 }
95
96 int
nouveau_conn_atomic_get_property(struct drm_connector * connector,const struct drm_connector_state * state,struct drm_property * property,u64 * val)97 nouveau_conn_atomic_get_property(struct drm_connector *connector,
98 const struct drm_connector_state *state,
99 struct drm_property *property, u64 *val)
100 {
101 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
102 struct nouveau_display *disp = nouveau_display(connector->dev);
103 struct drm_device *dev = connector->dev;
104
105 if (property == dev->mode_config.scaling_mode_property)
106 *val = asyc->scaler.mode;
107 else if (property == disp->underscan_property)
108 *val = asyc->scaler.underscan.mode;
109 else if (property == disp->underscan_hborder_property)
110 *val = asyc->scaler.underscan.hborder;
111 else if (property == disp->underscan_vborder_property)
112 *val = asyc->scaler.underscan.vborder;
113 else if (property == disp->dithering_mode)
114 *val = asyc->dither.mode;
115 else if (property == disp->dithering_depth)
116 *val = asyc->dither.depth;
117 else if (property == disp->vibrant_hue_property)
118 *val = asyc->procamp.vibrant_hue;
119 else if (property == disp->color_vibrance_property)
120 *val = asyc->procamp.color_vibrance;
121 else
122 return -EINVAL;
123
124 return 0;
125 }
126
127 int
nouveau_conn_atomic_set_property(struct drm_connector * connector,struct drm_connector_state * state,struct drm_property * property,u64 val)128 nouveau_conn_atomic_set_property(struct drm_connector *connector,
129 struct drm_connector_state *state,
130 struct drm_property *property, u64 val)
131 {
132 struct drm_device *dev = connector->dev;
133 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
134 struct nouveau_display *disp = nouveau_display(dev);
135
136 if (property == dev->mode_config.scaling_mode_property) {
137 switch (val) {
138 case DRM_MODE_SCALE_NONE:
139 /* We allow 'None' for EDID modes, even on a fixed
140 * panel (some exist with support for lower refresh
141 * rates, which people might want to use for power-
142 * saving purposes).
143 *
144 * Non-EDID modes will force the use of GPU scaling
145 * to the native mode regardless of this setting.
146 */
147 switch (connector->connector_type) {
148 case DRM_MODE_CONNECTOR_LVDS:
149 case DRM_MODE_CONNECTOR_eDP:
150 /* ... except prior to G80, where the code
151 * doesn't support such things.
152 */
153 if (disp->disp.object.oclass < NV50_DISP)
154 return -EINVAL;
155 break;
156 default:
157 break;
158 }
159 break;
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_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
nouveau_conn_attach_properties(struct drm_connector * connector)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 fallthrough;
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 *
find_encoder(struct drm_connector * connector,int type)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 static void
nouveau_connector_destroy(struct drm_connector * connector)395 nouveau_connector_destroy(struct drm_connector *connector)
396 {
397 struct nouveau_connector *nv_connector = nouveau_connector(connector);
398 nvif_event_dtor(&nv_connector->irq);
399 nvif_event_dtor(&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_cec_unregister_connector(&nv_connector->aux);
405 kfree(nv_connector->aux.name);
406 }
407 nvif_conn_dtor(&nv_connector->conn);
408 kfree(connector);
409 }
410
411 static struct nouveau_encoder *
nouveau_connector_ddc_detect(struct drm_connector * connector)412 nouveau_connector_ddc_detect(struct drm_connector *connector)
413 {
414 struct drm_device *dev = connector->dev;
415 struct pci_dev *pdev = to_pci_dev(dev->dev);
416 struct nouveau_encoder *nv_encoder = NULL, *found = NULL;
417 struct drm_encoder *encoder;
418 int ret;
419 bool switcheroo_ddc = false;
420
421 drm_connector_for_each_possible_encoder(connector, encoder) {
422 nv_encoder = nouveau_encoder(encoder);
423
424 switch (nv_encoder->dcb->type) {
425 case DCB_OUTPUT_DP:
426 ret = nouveau_dp_detect(nouveau_connector(connector),
427 nv_encoder);
428 if (ret == NOUVEAU_DP_MST)
429 return NULL;
430 else if (ret == NOUVEAU_DP_SST)
431 found = nv_encoder;
432
433 break;
434 case DCB_OUTPUT_LVDS:
435 switcheroo_ddc = !!(vga_switcheroo_handler_flags() &
436 VGA_SWITCHEROO_CAN_SWITCH_DDC);
437 fallthrough;
438 default:
439 if (!nv_encoder->i2c)
440 break;
441
442 if (switcheroo_ddc)
443 vga_switcheroo_lock_ddc(pdev);
444 if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
445 found = nv_encoder;
446 if (switcheroo_ddc)
447 vga_switcheroo_unlock_ddc(pdev);
448
449 break;
450 }
451 if (found)
452 break;
453 }
454
455 return found;
456 }
457
458 static struct nouveau_encoder *
nouveau_connector_of_detect(struct drm_connector * connector)459 nouveau_connector_of_detect(struct drm_connector *connector)
460 {
461 #ifdef __powerpc__
462 struct drm_device *dev = connector->dev;
463 struct nouveau_connector *nv_connector = nouveau_connector(connector);
464 struct nouveau_encoder *nv_encoder;
465 struct pci_dev *pdev = to_pci_dev(dev->dev);
466 struct device_node *cn, *dn = pci_device_to_OF_node(pdev);
467
468 if (!dn ||
469 !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
470 (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
471 return NULL;
472
473 for_each_child_of_node(dn, cn) {
474 const char *name = of_get_property(cn, "name", NULL);
475 const void *edid = of_get_property(cn, "EDID", NULL);
476 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
477
478 if (nv_encoder->dcb->i2c_index == idx && edid) {
479 nv_connector->edid =
480 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
481 of_node_put(cn);
482 return nv_encoder;
483 }
484 }
485 #endif
486 return NULL;
487 }
488
489 static void
nouveau_connector_set_encoder(struct drm_connector * connector,struct nouveau_encoder * nv_encoder)490 nouveau_connector_set_encoder(struct drm_connector *connector,
491 struct nouveau_encoder *nv_encoder)
492 {
493 struct nouveau_connector *nv_connector = nouveau_connector(connector);
494 struct nouveau_drm *drm = nouveau_drm(connector->dev);
495 struct drm_device *dev = connector->dev;
496 struct pci_dev *pdev = to_pci_dev(dev->dev);
497
498 if (nv_connector->detected_encoder == nv_encoder)
499 return;
500 nv_connector->detected_encoder = nv_encoder;
501
502 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
503 if (nv_encoder->dcb->type == DCB_OUTPUT_DP)
504 connector->interlace_allowed =
505 nv_encoder->caps.dp_interlace;
506 else
507 connector->interlace_allowed =
508 drm->client.device.info.family < NV_DEVICE_INFO_V0_VOLTA;
509 connector->doublescan_allowed = true;
510 } else
511 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
512 nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
513 connector->doublescan_allowed = false;
514 connector->interlace_allowed = false;
515 } else {
516 connector->doublescan_allowed = true;
517 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
518 (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
519 (pdev->device & 0x0ff0) != 0x0100 &&
520 (pdev->device & 0x0ff0) != 0x0150))
521 /* HW is broken */
522 connector->interlace_allowed = false;
523 else
524 connector->interlace_allowed = true;
525 }
526
527 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
528 drm_object_property_set_value(&connector->base,
529 dev->mode_config.dvi_i_subconnector_property,
530 nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
531 DRM_MODE_SUBCONNECTOR_DVID :
532 DRM_MODE_SUBCONNECTOR_DVIA);
533 }
534 }
535
536 static void
nouveau_connector_set_edid(struct nouveau_connector * nv_connector,struct edid * edid)537 nouveau_connector_set_edid(struct nouveau_connector *nv_connector,
538 struct edid *edid)
539 {
540 if (nv_connector->edid != edid) {
541 struct edid *old_edid = nv_connector->edid;
542
543 drm_connector_update_edid_property(&nv_connector->base, edid);
544 kfree(old_edid);
545 nv_connector->edid = edid;
546 }
547 }
548
549 static enum drm_connector_status
nouveau_connector_detect(struct drm_connector * connector,bool force)550 nouveau_connector_detect(struct drm_connector *connector, bool force)
551 {
552 struct drm_device *dev = connector->dev;
553 struct nouveau_drm *drm = nouveau_drm(dev);
554 struct nouveau_connector *nv_connector = nouveau_connector(connector);
555 struct nouveau_encoder *nv_encoder = NULL;
556 struct nouveau_encoder *nv_partner;
557 struct i2c_adapter *i2c;
558 int type;
559 int ret;
560 enum drm_connector_status conn_status = connector_status_disconnected;
561
562 /* Outputs are only polled while runtime active, so resuming the
563 * device here is unnecessary (and would deadlock upon runtime suspend
564 * because it waits for polling to finish). We do however, want to
565 * prevent the autosuspend timer from elapsing during this operation
566 * if possible.
567 */
568 if (drm_kms_helper_is_poll_worker()) {
569 pm_runtime_get_noresume(dev->dev);
570 } else {
571 ret = pm_runtime_get_sync(dev->dev);
572 if (ret < 0 && ret != -EACCES) {
573 pm_runtime_put_autosuspend(dev->dev);
574 nouveau_connector_set_edid(nv_connector, NULL);
575 return conn_status;
576 }
577 }
578
579 nv_encoder = nouveau_connector_ddc_detect(connector);
580 if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
581 struct edid *new_edid;
582
583 if ((vga_switcheroo_handler_flags() &
584 VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
585 nv_connector->type == DCB_CONNECTOR_LVDS)
586 new_edid = drm_get_edid_switcheroo(connector, i2c);
587 else
588 new_edid = drm_get_edid(connector, i2c);
589
590 nouveau_connector_set_edid(nv_connector, new_edid);
591 if (!nv_connector->edid) {
592 NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
593 connector->name);
594 goto detect_analog;
595 }
596
597 /* Override encoder type for DVI-I based on whether EDID
598 * says the display is digital or analog, both use the
599 * same i2c channel so the value returned from ddc_detect
600 * isn't necessarily correct.
601 */
602 nv_partner = NULL;
603 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
604 nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
605 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
606 nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
607
608 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
609 nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
610 (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
611 nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
612 if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
613 type = DCB_OUTPUT_TMDS;
614 else
615 type = DCB_OUTPUT_ANALOG;
616
617 nv_encoder = find_encoder(connector, type);
618 }
619
620 nouveau_connector_set_encoder(connector, nv_encoder);
621 conn_status = connector_status_connected;
622
623 if (nv_encoder->dcb->type == DCB_OUTPUT_DP)
624 drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid);
625
626 goto out;
627 } else {
628 nouveau_connector_set_edid(nv_connector, NULL);
629 }
630
631 nv_encoder = nouveau_connector_of_detect(connector);
632 if (nv_encoder) {
633 nouveau_connector_set_encoder(connector, nv_encoder);
634 conn_status = connector_status_connected;
635 goto out;
636 }
637
638 detect_analog:
639 nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
640 if (!nv_encoder && !nouveau_tv_disable)
641 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
642 if (nv_encoder && force) {
643 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
644 const struct drm_encoder_helper_funcs *helper =
645 encoder->helper_private;
646
647 if (helper->detect(encoder, connector) ==
648 connector_status_connected) {
649 nouveau_connector_set_encoder(connector, nv_encoder);
650 conn_status = connector_status_connected;
651 goto out;
652 }
653 }
654
655 out:
656 if (!nv_connector->edid)
657 drm_dp_cec_unset_edid(&nv_connector->aux);
658
659 pm_runtime_mark_last_busy(dev->dev);
660 pm_runtime_put_autosuspend(dev->dev);
661
662 return conn_status;
663 }
664
665 static enum drm_connector_status
nouveau_connector_detect_lvds(struct drm_connector * connector,bool force)666 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
667 {
668 struct drm_device *dev = connector->dev;
669 struct nouveau_drm *drm = nouveau_drm(dev);
670 struct nouveau_connector *nv_connector = nouveau_connector(connector);
671 struct nouveau_encoder *nv_encoder = NULL;
672 struct edid *edid = NULL;
673 enum drm_connector_status status = connector_status_disconnected;
674
675 nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
676 if (!nv_encoder)
677 goto out;
678
679 /* Try retrieving EDID via DDC */
680 if (!drm->vbios.fp_no_ddc) {
681 status = nouveau_connector_detect(connector, force);
682 if (status == connector_status_connected) {
683 edid = nv_connector->edid;
684 goto out;
685 }
686 }
687
688 /* On some laptops (Sony, i'm looking at you) there appears to
689 * be no direct way of accessing the panel's EDID. The only
690 * option available to us appears to be to ask ACPI for help..
691 *
692 * It's important this check's before trying straps, one of the
693 * said manufacturer's laptops are configured in such a way
694 * the nouveau decides an entry in the VBIOS FP mode table is
695 * valid - it's not (rh#613284)
696 */
697 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
698 edid = nouveau_acpi_edid(dev, connector);
699 if (edid) {
700 status = connector_status_connected;
701 goto out;
702 }
703 }
704
705 /* If no EDID found above, and the VBIOS indicates a hardcoded
706 * modeline is avalilable for the panel, set it as the panel's
707 * native mode and exit.
708 */
709 if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
710 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
711 status = connector_status_connected;
712 goto out;
713 }
714
715 /* Still nothing, some VBIOS images have a hardcoded EDID block
716 * stored for the panel stored in them.
717 */
718 if (!drm->vbios.fp_no_ddc) {
719 edid = (struct edid *)nouveau_bios_embedded_edid(dev);
720 if (edid) {
721 edid = kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
722 if (edid)
723 status = connector_status_connected;
724 }
725 }
726
727 out:
728 #if defined(CONFIG_ACPI_BUTTON) || \
729 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
730 if (status == connector_status_connected &&
731 !nouveau_ignorelid && !acpi_lid_open())
732 status = connector_status_unknown;
733 #endif
734
735 nouveau_connector_set_edid(nv_connector, edid);
736 if (nv_encoder)
737 nouveau_connector_set_encoder(connector, nv_encoder);
738 return status;
739 }
740
741 static void
nouveau_connector_force(struct drm_connector * connector)742 nouveau_connector_force(struct drm_connector *connector)
743 {
744 struct nouveau_drm *drm = nouveau_drm(connector->dev);
745 struct nouveau_connector *nv_connector = nouveau_connector(connector);
746 struct nouveau_encoder *nv_encoder;
747 int type;
748
749 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
750 if (connector->force == DRM_FORCE_ON_DIGITAL)
751 type = DCB_OUTPUT_TMDS;
752 else
753 type = DCB_OUTPUT_ANALOG;
754 } else
755 type = DCB_OUTPUT_ANY;
756
757 nv_encoder = find_encoder(connector, type);
758 if (!nv_encoder) {
759 NV_ERROR(drm, "can't find encoder to force %s on!\n",
760 connector->name);
761 return;
762 }
763
764 nouveau_connector_set_encoder(connector, nv_encoder);
765 }
766
767 static int
nouveau_connector_set_property(struct drm_connector * connector,struct drm_property * property,uint64_t value)768 nouveau_connector_set_property(struct drm_connector *connector,
769 struct drm_property *property, uint64_t value)
770 {
771 struct nouveau_connector *nv_connector = nouveau_connector(connector);
772 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
773 struct nouveau_conn_atom *asyc = &nv_connector->properties_state;
774 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
775 int ret;
776
777 ret = connector->funcs->atomic_set_property(&nv_connector->base,
778 &asyc->state,
779 property, value);
780 if (ret) {
781 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
782 return get_slave_funcs(encoder)->set_property(
783 encoder, connector, property, value);
784 return ret;
785 }
786
787 nv_connector->scaling_mode = asyc->scaler.mode;
788 nv_connector->dithering_mode = asyc->dither.mode;
789
790 if (connector->encoder && connector->encoder->crtc) {
791 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
792 &connector->encoder->crtc->mode,
793 connector->encoder->crtc->x,
794 connector->encoder->crtc->y,
795 NULL);
796 if (!ret)
797 return -EINVAL;
798 }
799
800 return 0;
801 }
802
803 struct moderec {
804 int hdisplay;
805 int vdisplay;
806 };
807
808 static struct moderec scaler_modes[] = {
809 { 1920, 1200 },
810 { 1920, 1080 },
811 { 1680, 1050 },
812 { 1600, 1200 },
813 { 1400, 1050 },
814 { 1280, 1024 },
815 { 1280, 960 },
816 { 1152, 864 },
817 { 1024, 768 },
818 { 800, 600 },
819 { 720, 400 },
820 { 640, 480 },
821 { 640, 400 },
822 { 640, 350 },
823 {}
824 };
825
826 static int
nouveau_connector_scaler_modes_add(struct drm_connector * connector)827 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
828 {
829 struct nouveau_connector *nv_connector = nouveau_connector(connector);
830 struct drm_display_mode *native = nv_connector->native_mode, *m;
831 struct drm_device *dev = connector->dev;
832 struct moderec *mode = &scaler_modes[0];
833 int modes = 0;
834
835 if (!native)
836 return 0;
837
838 while (mode->hdisplay) {
839 if (mode->hdisplay <= native->hdisplay &&
840 mode->vdisplay <= native->vdisplay &&
841 (mode->hdisplay != native->hdisplay ||
842 mode->vdisplay != native->vdisplay)) {
843 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
844 drm_mode_vrefresh(native), false,
845 false, false);
846 if (!m)
847 continue;
848
849 drm_mode_probed_add(connector, m);
850 modes++;
851 }
852
853 mode++;
854 }
855
856 return modes;
857 }
858
859 static void
nouveau_connector_detect_depth(struct drm_connector * connector)860 nouveau_connector_detect_depth(struct drm_connector *connector)
861 {
862 struct nouveau_drm *drm = nouveau_drm(connector->dev);
863 struct nouveau_connector *nv_connector = nouveau_connector(connector);
864 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
865 struct nvbios *bios = &drm->vbios;
866 struct drm_display_mode *mode = nv_connector->native_mode;
867 bool duallink;
868
869 /* if the edid is feeling nice enough to provide this info, use it */
870 if (nv_connector->edid && connector->display_info.bpc)
871 return;
872
873 /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
874 if (nv_connector->type == DCB_CONNECTOR_eDP) {
875 connector->display_info.bpc = 6;
876 return;
877 }
878
879 /* we're out of options unless we're LVDS, default to 8bpc */
880 if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
881 connector->display_info.bpc = 8;
882 return;
883 }
884
885 connector->display_info.bpc = 6;
886
887 /* LVDS: panel straps */
888 if (bios->fp_no_ddc) {
889 if (bios->fp.if_is_24bit)
890 connector->display_info.bpc = 8;
891 return;
892 }
893
894 /* LVDS: DDC panel, need to first determine the number of links to
895 * know which if_is_24bit flag to check...
896 */
897 if (nv_connector->edid &&
898 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
899 duallink = ((u8 *)nv_connector->edid)[121] == 2;
900 else
901 duallink = mode->clock >= bios->fp.duallink_transition_clk;
902
903 if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
904 ( duallink && (bios->fp.strapless_is_24bit & 2)))
905 connector->display_info.bpc = 8;
906 }
907
908 static int
nouveau_connector_late_register(struct drm_connector * connector)909 nouveau_connector_late_register(struct drm_connector *connector)
910 {
911 int ret;
912
913 ret = nouveau_backlight_init(connector);
914 if (ret)
915 return ret;
916
917 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
918 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
919 ret = drm_dp_aux_register(&nouveau_connector(connector)->aux);
920 if (ret)
921 goto backlight_fini;
922 }
923
924 return 0;
925 backlight_fini:
926 nouveau_backlight_fini(connector);
927 return ret;
928 }
929
930 static void
nouveau_connector_early_unregister(struct drm_connector * connector)931 nouveau_connector_early_unregister(struct drm_connector *connector)
932 {
933 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
934 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)
935 drm_dp_aux_unregister(&nouveau_connector(connector)->aux);
936
937 nouveau_backlight_fini(connector);
938 }
939
940 static int
nouveau_connector_get_modes(struct drm_connector * connector)941 nouveau_connector_get_modes(struct drm_connector *connector)
942 {
943 struct drm_device *dev = connector->dev;
944 struct nouveau_drm *drm = nouveau_drm(dev);
945 struct nouveau_connector *nv_connector = nouveau_connector(connector);
946 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
947 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
948 int ret = 0;
949
950 /* destroy the native mode, the attached monitor could have changed.
951 */
952 if (nv_connector->native_mode) {
953 drm_mode_destroy(dev, nv_connector->native_mode);
954 nv_connector->native_mode = NULL;
955 }
956
957 if (nv_connector->edid)
958 ret = drm_add_edid_modes(connector, nv_connector->edid);
959 else
960 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
961 (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
962 drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
963 struct drm_display_mode mode;
964
965 nouveau_bios_fp_mode(dev, &mode);
966 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
967 }
968
969 /* Determine display colour depth for everything except LVDS now,
970 * DP requires this before mode_valid() is called.
971 */
972 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
973 nouveau_connector_detect_depth(connector);
974
975 /* Find the native mode if this is a digital panel, if we didn't
976 * find any modes through DDC previously add the native mode to
977 * the list of modes.
978 */
979 if (!nv_connector->native_mode)
980 nv_connector->native_mode = nouveau_conn_native_mode(connector);
981 if (ret == 0 && nv_connector->native_mode) {
982 struct drm_display_mode *mode;
983
984 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
985 if (!mode)
986 return 0;
987
988 drm_mode_probed_add(connector, mode);
989 ret = 1;
990 }
991
992 /* Determine LVDS colour depth, must happen after determining
993 * "native" mode as some VBIOS tables require us to use the
994 * pixel clock as part of the lookup...
995 */
996 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS && nv_connector->native_mode)
997 nouveau_connector_detect_depth(connector);
998
999 if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
1000 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
1001
1002 if (nv_connector->type == DCB_CONNECTOR_LVDS ||
1003 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
1004 nv_connector->type == DCB_CONNECTOR_eDP)
1005 ret += nouveau_connector_scaler_modes_add(connector);
1006
1007 return ret;
1008 }
1009
1010 static unsigned
get_tmds_link_bandwidth(struct drm_connector * connector)1011 get_tmds_link_bandwidth(struct drm_connector *connector)
1012 {
1013 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1014 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1015 struct nouveau_drm *drm = nouveau_drm(connector->dev);
1016 struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
1017 struct drm_display_info *info = NULL;
1018 unsigned duallink_scale =
1019 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1;
1020
1021 if (drm_detect_hdmi_monitor(nv_connector->edid)) {
1022 info = &nv_connector->base.display_info;
1023 duallink_scale = 1;
1024 }
1025
1026 if (info) {
1027 if (nouveau_hdmimhz > 0)
1028 return nouveau_hdmimhz * 1000;
1029 /* Note: these limits are conservative, some Fermi's
1030 * can do 297 MHz. Unclear how this can be determined.
1031 */
1032 if (drm->client.device.info.chipset >= 0x120) {
1033 const int max_tmds_clock =
1034 info->hdmi.scdc.scrambling.supported ?
1035 594000 : 340000;
1036 return info->max_tmds_clock ?
1037 min(info->max_tmds_clock, max_tmds_clock) :
1038 max_tmds_clock;
1039 }
1040 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
1041 return 297000;
1042 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
1043 return 225000;
1044 }
1045
1046 if (dcb->location != DCB_LOC_ON_CHIP ||
1047 drm->client.device.info.chipset >= 0x46)
1048 return 165000 * duallink_scale;
1049 else if (drm->client.device.info.chipset >= 0x40)
1050 return 155000 * duallink_scale;
1051 else if (drm->client.device.info.chipset >= 0x18)
1052 return 135000 * duallink_scale;
1053 else
1054 return 112000 * duallink_scale;
1055 }
1056
1057 static enum drm_mode_status
nouveau_connector_mode_valid(struct drm_connector * connector,struct drm_display_mode * mode)1058 nouveau_connector_mode_valid(struct drm_connector *connector,
1059 struct drm_display_mode *mode)
1060 {
1061 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1062 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1063 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1064 unsigned int min_clock = 25000, max_clock = min_clock, clock = mode->clock;
1065
1066 switch (nv_encoder->dcb->type) {
1067 case DCB_OUTPUT_LVDS:
1068 if (nv_connector->native_mode &&
1069 (mode->hdisplay > nv_connector->native_mode->hdisplay ||
1070 mode->vdisplay > nv_connector->native_mode->vdisplay))
1071 return MODE_PANEL;
1072
1073 min_clock = 0;
1074 max_clock = 400000;
1075 break;
1076 case DCB_OUTPUT_TMDS:
1077 max_clock = get_tmds_link_bandwidth(connector);
1078 break;
1079 case DCB_OUTPUT_ANALOG:
1080 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1081 if (!max_clock)
1082 max_clock = 350000;
1083 break;
1084 case DCB_OUTPUT_TV:
1085 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1086 case DCB_OUTPUT_DP:
1087 return nv50_dp_mode_valid(nv_encoder, mode, NULL);
1088 default:
1089 BUG();
1090 return MODE_BAD;
1091 }
1092
1093 if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1094 clock *= 2;
1095
1096 if (clock < min_clock)
1097 return MODE_CLOCK_LOW;
1098 if (clock > max_clock)
1099 return MODE_CLOCK_HIGH;
1100
1101 return MODE_OK;
1102 }
1103
1104 static struct drm_encoder *
nouveau_connector_best_encoder(struct drm_connector * connector)1105 nouveau_connector_best_encoder(struct drm_connector *connector)
1106 {
1107 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1108
1109 if (nv_connector->detected_encoder)
1110 return to_drm_encoder(nv_connector->detected_encoder);
1111
1112 return NULL;
1113 }
1114
1115 static int
nouveau_connector_atomic_check(struct drm_connector * connector,struct drm_atomic_state * state)1116 nouveau_connector_atomic_check(struct drm_connector *connector, struct drm_atomic_state *state)
1117 {
1118 struct nouveau_connector *nv_conn = nouveau_connector(connector);
1119 struct drm_connector_state *conn_state =
1120 drm_atomic_get_new_connector_state(state, connector);
1121
1122 if (!nv_conn->dp_encoder || !nv50_has_mst(nouveau_drm(connector->dev)))
1123 return 0;
1124
1125 return drm_dp_mst_root_conn_atomic_check(conn_state, &nv_conn->dp_encoder->dp.mstm->mgr);
1126 }
1127
1128 static const struct drm_connector_helper_funcs
1129 nouveau_connector_helper_funcs = {
1130 .get_modes = nouveau_connector_get_modes,
1131 .mode_valid = nouveau_connector_mode_valid,
1132 .best_encoder = nouveau_connector_best_encoder,
1133 .atomic_check = nouveau_connector_atomic_check,
1134 };
1135
1136 static const struct drm_connector_funcs
1137 nouveau_connector_funcs = {
1138 .dpms = drm_helper_connector_dpms,
1139 .reset = nouveau_conn_reset,
1140 .detect = nouveau_connector_detect,
1141 .force = nouveau_connector_force,
1142 .fill_modes = drm_helper_probe_single_connector_modes,
1143 .set_property = nouveau_connector_set_property,
1144 .destroy = nouveau_connector_destroy,
1145 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1146 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1147 .atomic_set_property = nouveau_conn_atomic_set_property,
1148 .atomic_get_property = nouveau_conn_atomic_get_property,
1149 .late_register = nouveau_connector_late_register,
1150 .early_unregister = nouveau_connector_early_unregister,
1151 };
1152
1153 static const struct drm_connector_funcs
1154 nouveau_connector_funcs_lvds = {
1155 .dpms = drm_helper_connector_dpms,
1156 .reset = nouveau_conn_reset,
1157 .detect = nouveau_connector_detect_lvds,
1158 .force = nouveau_connector_force,
1159 .fill_modes = drm_helper_probe_single_connector_modes,
1160 .set_property = nouveau_connector_set_property,
1161 .destroy = nouveau_connector_destroy,
1162 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1163 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1164 .atomic_set_property = nouveau_conn_atomic_set_property,
1165 .atomic_get_property = nouveau_conn_atomic_get_property,
1166 .late_register = nouveau_connector_late_register,
1167 .early_unregister = nouveau_connector_early_unregister,
1168 };
1169
1170 void
nouveau_connector_hpd(struct nouveau_connector * nv_connector,u64 bits)1171 nouveau_connector_hpd(struct nouveau_connector *nv_connector, u64 bits)
1172 {
1173 struct nouveau_drm *drm = nouveau_drm(nv_connector->base.dev);
1174 u32 mask = drm_connector_mask(&nv_connector->base);
1175 unsigned long flags;
1176
1177 spin_lock_irqsave(&drm->hpd_lock, flags);
1178 if (!(drm->hpd_pending & mask)) {
1179 nv_connector->hpd_pending |= bits;
1180 drm->hpd_pending |= mask;
1181 schedule_work(&drm->hpd_work);
1182 }
1183 spin_unlock_irqrestore(&drm->hpd_lock, flags);
1184 }
1185
1186 static int
nouveau_connector_irq(struct nvif_event * event,void * repv,u32 repc)1187 nouveau_connector_irq(struct nvif_event *event, void *repv, u32 repc)
1188 {
1189 struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), irq);
1190
1191 schedule_work(&nv_connector->irq_work);
1192 return NVIF_EVENT_KEEP;
1193 }
1194
1195 static int
nouveau_connector_hotplug(struct nvif_event * event,void * repv,u32 repc)1196 nouveau_connector_hotplug(struct nvif_event *event, void *repv, u32 repc)
1197 {
1198 struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), hpd);
1199 struct nvif_conn_event_v0 *rep = repv;
1200
1201 nouveau_connector_hpd(nv_connector, rep->types);
1202 return NVIF_EVENT_KEEP;
1203 }
1204
1205 static ssize_t
nouveau_connector_aux_xfer(struct drm_dp_aux * obj,struct drm_dp_aux_msg * msg)1206 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1207 {
1208 struct nouveau_connector *nv_connector =
1209 container_of(obj, typeof(*nv_connector), aux);
1210 struct nouveau_encoder *nv_encoder;
1211 struct nvkm_i2c_aux *aux;
1212 u8 size = msg->size;
1213 int ret;
1214
1215 nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1216 if (!nv_encoder || !(aux = nv_encoder->aux))
1217 return -ENODEV;
1218 if (WARN_ON(msg->size > 16))
1219 return -E2BIG;
1220
1221 ret = nvkm_i2c_aux_acquire(aux);
1222 if (ret)
1223 return ret;
1224
1225 ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1226 msg->buffer, &size);
1227 nvkm_i2c_aux_release(aux);
1228 if (ret >= 0) {
1229 msg->reply = ret;
1230 return size;
1231 }
1232
1233 return ret;
1234 }
1235
1236 static int
drm_conntype_from_dcb(enum dcb_connector_type dcb)1237 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1238 {
1239 switch (dcb) {
1240 case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA;
1241 case DCB_CONNECTOR_TV_0 :
1242 case DCB_CONNECTOR_TV_1 :
1243 case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV;
1244 case DCB_CONNECTOR_DMS59_0 :
1245 case DCB_CONNECTOR_DMS59_1 :
1246 case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII;
1247 case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID;
1248 case DCB_CONNECTOR_LVDS :
1249 case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1250 case DCB_CONNECTOR_DMS59_DP0:
1251 case DCB_CONNECTOR_DMS59_DP1:
1252 case DCB_CONNECTOR_DP :
1253 case DCB_CONNECTOR_mDP :
1254 case DCB_CONNECTOR_USB_C : return DRM_MODE_CONNECTOR_DisplayPort;
1255 case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP;
1256 case DCB_CONNECTOR_HDMI_0 :
1257 case DCB_CONNECTOR_HDMI_1 :
1258 case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA;
1259 case DCB_CONNECTOR_WFD : return DRM_MODE_CONNECTOR_VIRTUAL;
1260 default:
1261 break;
1262 }
1263
1264 return DRM_MODE_CONNECTOR_Unknown;
1265 }
1266
1267 struct drm_connector *
nouveau_connector_create(struct drm_device * dev,const struct dcb_output * dcbe)1268 nouveau_connector_create(struct drm_device *dev,
1269 const struct dcb_output *dcbe)
1270 {
1271 const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1272 struct nouveau_drm *drm = nouveau_drm(dev);
1273 struct nouveau_display *disp = nouveau_display(dev);
1274 struct nouveau_connector *nv_connector = NULL;
1275 struct drm_connector *connector;
1276 struct drm_connector_list_iter conn_iter;
1277 char aux_name[48] = {0};
1278 int index = dcbe->connector;
1279 int type, ret = 0;
1280 bool dummy;
1281
1282 drm_connector_list_iter_begin(dev, &conn_iter);
1283 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1284 nv_connector = nouveau_connector(connector);
1285 if (nv_connector->index == index) {
1286 drm_connector_list_iter_end(&conn_iter);
1287 return connector;
1288 }
1289 }
1290 drm_connector_list_iter_end(&conn_iter);
1291
1292 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1293 if (!nv_connector)
1294 return ERR_PTR(-ENOMEM);
1295
1296 connector = &nv_connector->base;
1297 nv_connector->index = index;
1298 INIT_WORK(&nv_connector->irq_work, nouveau_dp_irq);
1299
1300 /* attempt to parse vbios connector type and hotplug gpio */
1301 nv_connector->dcb = olddcb_conn(dev, index);
1302 if (nv_connector->dcb) {
1303 u32 entry = ROM16(nv_connector->dcb[0]);
1304 if (olddcb_conntab(dev)[3] >= 4)
1305 entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1306
1307 nv_connector->type = nv_connector->dcb[0];
1308 if (drm_conntype_from_dcb(nv_connector->type) ==
1309 DRM_MODE_CONNECTOR_Unknown) {
1310 NV_WARN(drm, "unknown connector type %02x\n",
1311 nv_connector->type);
1312 nv_connector->type = DCB_CONNECTOR_NONE;
1313 }
1314
1315 /* Gigabyte NX85T */
1316 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1317 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1318 nv_connector->type = DCB_CONNECTOR_DVI_I;
1319 }
1320
1321 /* Gigabyte GV-NX86T512H */
1322 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1323 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1324 nv_connector->type = DCB_CONNECTOR_DVI_I;
1325 }
1326 } else {
1327 nv_connector->type = DCB_CONNECTOR_NONE;
1328 }
1329
1330 /* no vbios data, or an unknown dcb connector type - attempt to
1331 * figure out something suitable ourselves
1332 */
1333 if (nv_connector->type == DCB_CONNECTOR_NONE) {
1334 struct nouveau_drm *drm = nouveau_drm(dev);
1335 struct dcb_table *dcbt = &drm->vbios.dcb;
1336 u32 encoders = 0;
1337 int i;
1338
1339 for (i = 0; i < dcbt->entries; i++) {
1340 if (dcbt->entry[i].connector == nv_connector->index)
1341 encoders |= (1 << dcbt->entry[i].type);
1342 }
1343
1344 if (encoders & (1 << DCB_OUTPUT_DP)) {
1345 if (encoders & (1 << DCB_OUTPUT_TMDS))
1346 nv_connector->type = DCB_CONNECTOR_DP;
1347 else
1348 nv_connector->type = DCB_CONNECTOR_eDP;
1349 } else
1350 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1351 if (encoders & (1 << DCB_OUTPUT_ANALOG))
1352 nv_connector->type = DCB_CONNECTOR_DVI_I;
1353 else
1354 nv_connector->type = DCB_CONNECTOR_DVI_D;
1355 } else
1356 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1357 nv_connector->type = DCB_CONNECTOR_VGA;
1358 } else
1359 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1360 nv_connector->type = DCB_CONNECTOR_LVDS;
1361 } else
1362 if (encoders & (1 << DCB_OUTPUT_TV)) {
1363 nv_connector->type = DCB_CONNECTOR_TV_0;
1364 }
1365 }
1366
1367 switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1368 case DRM_MODE_CONNECTOR_LVDS:
1369 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1370 if (ret) {
1371 NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1372 kfree(nv_connector);
1373 return ERR_PTR(ret);
1374 }
1375
1376 funcs = &nouveau_connector_funcs_lvds;
1377 break;
1378 case DRM_MODE_CONNECTOR_DisplayPort:
1379 case DRM_MODE_CONNECTOR_eDP:
1380 nv_connector->aux.dev = connector->kdev;
1381 nv_connector->aux.drm_dev = dev;
1382 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1383 snprintf(aux_name, sizeof(aux_name), "sor-%04x-%04x",
1384 dcbe->hasht, dcbe->hashm);
1385 nv_connector->aux.name = kstrdup(aux_name, GFP_KERNEL);
1386 if (!nv_connector->aux.name) {
1387 kfree(nv_connector);
1388 return ERR_PTR(-ENOMEM);
1389 }
1390 drm_dp_aux_init(&nv_connector->aux);
1391 break;
1392 default:
1393 funcs = &nouveau_connector_funcs;
1394 break;
1395 }
1396
1397 /* HDMI 3D support */
1398 if ((disp->disp.object.oclass >= G82_DISP)
1399 && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1400 || (type == DRM_MODE_CONNECTOR_eDP)
1401 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1402 connector->stereo_allowed = true;
1403
1404 /* defaults, will get overridden in detect() */
1405 connector->interlace_allowed = false;
1406 connector->doublescan_allowed = false;
1407
1408 drm_connector_init(dev, connector, funcs, type);
1409 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1410 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1411
1412 if (nv_connector->dcb && (disp->disp.conn_mask & BIT(nv_connector->index))) {
1413 ret = nvif_conn_ctor(&disp->disp, nv_connector->base.name, nv_connector->index,
1414 &nv_connector->conn);
1415 if (ret) {
1416 goto drm_conn_err;
1417 }
1418
1419 ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsHotplug",
1420 nouveau_connector_hotplug,
1421 NVIF_CONN_EVENT_V0_PLUG | NVIF_CONN_EVENT_V0_UNPLUG,
1422 &nv_connector->hpd);
1423 if (ret == 0)
1424 connector->polled = DRM_CONNECTOR_POLL_HPD;
1425
1426 if (nv_connector->aux.transfer) {
1427 ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsDpIrq",
1428 nouveau_connector_irq, NVIF_CONN_EVENT_V0_IRQ,
1429 &nv_connector->irq);
1430 if (ret) {
1431 nvif_event_dtor(&nv_connector->hpd);
1432 nvif_conn_dtor(&nv_connector->conn);
1433 goto drm_conn_err;
1434 }
1435 }
1436 }
1437
1438 connector->funcs->reset(connector);
1439 nouveau_conn_attach_properties(connector);
1440
1441 /* Default scaling mode */
1442 switch (nv_connector->type) {
1443 case DCB_CONNECTOR_LVDS:
1444 case DCB_CONNECTOR_LVDS_SPWG:
1445 case DCB_CONNECTOR_eDP:
1446 /* see note in nouveau_connector_set_property() */
1447 if (disp->disp.object.oclass < NV50_DISP) {
1448 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1449 break;
1450 }
1451 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1452 break;
1453 default:
1454 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1455 break;
1456 }
1457
1458 /* dithering properties */
1459 switch (nv_connector->type) {
1460 case DCB_CONNECTOR_TV_0:
1461 case DCB_CONNECTOR_TV_1:
1462 case DCB_CONNECTOR_TV_3:
1463 case DCB_CONNECTOR_VGA:
1464 break;
1465 default:
1466 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1467 break;
1468 }
1469
1470 switch (type) {
1471 case DRM_MODE_CONNECTOR_DisplayPort:
1472 nv_connector->dp_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1473 fallthrough;
1474 case DRM_MODE_CONNECTOR_eDP:
1475 drm_dp_cec_register_connector(&nv_connector->aux, connector);
1476 break;
1477 }
1478
1479 drm_connector_register(connector);
1480 return connector;
1481
1482 drm_conn_err:
1483 drm_connector_cleanup(connector);
1484 kfree(nv_connector);
1485 return ERR_PTR(ret);
1486 }
1487