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 drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid);
623 goto out;
624 } else {
625 nouveau_connector_set_edid(nv_connector, NULL);
626 }
627
628 nv_encoder = nouveau_connector_of_detect(connector);
629 if (nv_encoder) {
630 nouveau_connector_set_encoder(connector, nv_encoder);
631 conn_status = connector_status_connected;
632 goto out;
633 }
634
635 detect_analog:
636 nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
637 if (!nv_encoder && !nouveau_tv_disable)
638 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
639 if (nv_encoder && force) {
640 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
641 const struct drm_encoder_helper_funcs *helper =
642 encoder->helper_private;
643
644 if (helper->detect(encoder, connector) ==
645 connector_status_connected) {
646 nouveau_connector_set_encoder(connector, nv_encoder);
647 conn_status = connector_status_connected;
648 goto out;
649 }
650 }
651
652 out:
653 if (!nv_connector->edid)
654 drm_dp_cec_unset_edid(&nv_connector->aux);
655
656 pm_runtime_mark_last_busy(dev->dev);
657 pm_runtime_put_autosuspend(dev->dev);
658
659 return conn_status;
660 }
661
662 static enum drm_connector_status
nouveau_connector_detect_lvds(struct drm_connector * connector,bool force)663 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
664 {
665 struct drm_device *dev = connector->dev;
666 struct nouveau_drm *drm = nouveau_drm(dev);
667 struct nouveau_connector *nv_connector = nouveau_connector(connector);
668 struct nouveau_encoder *nv_encoder = NULL;
669 struct edid *edid = NULL;
670 enum drm_connector_status status = connector_status_disconnected;
671
672 nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
673 if (!nv_encoder)
674 goto out;
675
676 /* Try retrieving EDID via DDC */
677 if (!drm->vbios.fp_no_ddc) {
678 status = nouveau_connector_detect(connector, force);
679 if (status == connector_status_connected) {
680 edid = nv_connector->edid;
681 goto out;
682 }
683 }
684
685 /* On some laptops (Sony, i'm looking at you) there appears to
686 * be no direct way of accessing the panel's EDID. The only
687 * option available to us appears to be to ask ACPI for help..
688 *
689 * It's important this check's before trying straps, one of the
690 * said manufacturer's laptops are configured in such a way
691 * the nouveau decides an entry in the VBIOS FP mode table is
692 * valid - it's not (rh#613284)
693 */
694 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
695 edid = nouveau_acpi_edid(dev, connector);
696 if (edid) {
697 status = connector_status_connected;
698 goto out;
699 }
700 }
701
702 /* If no EDID found above, and the VBIOS indicates a hardcoded
703 * modeline is avalilable for the panel, set it as the panel's
704 * native mode and exit.
705 */
706 if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
707 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
708 status = connector_status_connected;
709 goto out;
710 }
711
712 /* Still nothing, some VBIOS images have a hardcoded EDID block
713 * stored for the panel stored in them.
714 */
715 if (!drm->vbios.fp_no_ddc) {
716 edid = (struct edid *)nouveau_bios_embedded_edid(dev);
717 if (edid) {
718 edid = kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
719 if (edid)
720 status = connector_status_connected;
721 }
722 }
723
724 out:
725 #if defined(CONFIG_ACPI_BUTTON) || \
726 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
727 if (status == connector_status_connected &&
728 !nouveau_ignorelid && !acpi_lid_open())
729 status = connector_status_unknown;
730 #endif
731
732 nouveau_connector_set_edid(nv_connector, edid);
733 nouveau_connector_set_encoder(connector, nv_encoder);
734 return status;
735 }
736
737 static void
nouveau_connector_force(struct drm_connector * connector)738 nouveau_connector_force(struct drm_connector *connector)
739 {
740 struct nouveau_drm *drm = nouveau_drm(connector->dev);
741 struct nouveau_connector *nv_connector = nouveau_connector(connector);
742 struct nouveau_encoder *nv_encoder;
743 int type;
744
745 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
746 if (connector->force == DRM_FORCE_ON_DIGITAL)
747 type = DCB_OUTPUT_TMDS;
748 else
749 type = DCB_OUTPUT_ANALOG;
750 } else
751 type = DCB_OUTPUT_ANY;
752
753 nv_encoder = find_encoder(connector, type);
754 if (!nv_encoder) {
755 NV_ERROR(drm, "can't find encoder to force %s on!\n",
756 connector->name);
757 connector->status = connector_status_disconnected;
758 return;
759 }
760
761 nouveau_connector_set_encoder(connector, nv_encoder);
762 }
763
764 static int
nouveau_connector_set_property(struct drm_connector * connector,struct drm_property * property,uint64_t value)765 nouveau_connector_set_property(struct drm_connector *connector,
766 struct drm_property *property, uint64_t value)
767 {
768 struct nouveau_connector *nv_connector = nouveau_connector(connector);
769 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
770 struct nouveau_conn_atom *asyc = &nv_connector->properties_state;
771 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
772 int ret;
773
774 ret = connector->funcs->atomic_set_property(&nv_connector->base,
775 &asyc->state,
776 property, value);
777 if (ret) {
778 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
779 return get_slave_funcs(encoder)->set_property(
780 encoder, connector, property, value);
781 return ret;
782 }
783
784 nv_connector->scaling_mode = asyc->scaler.mode;
785 nv_connector->dithering_mode = asyc->dither.mode;
786
787 if (connector->encoder && connector->encoder->crtc) {
788 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
789 &connector->encoder->crtc->mode,
790 connector->encoder->crtc->x,
791 connector->encoder->crtc->y,
792 NULL);
793 if (!ret)
794 return -EINVAL;
795 }
796
797 return 0;
798 }
799
800 struct moderec {
801 int hdisplay;
802 int vdisplay;
803 };
804
805 static struct moderec scaler_modes[] = {
806 { 1920, 1200 },
807 { 1920, 1080 },
808 { 1680, 1050 },
809 { 1600, 1200 },
810 { 1400, 1050 },
811 { 1280, 1024 },
812 { 1280, 960 },
813 { 1152, 864 },
814 { 1024, 768 },
815 { 800, 600 },
816 { 720, 400 },
817 { 640, 480 },
818 { 640, 400 },
819 { 640, 350 },
820 {}
821 };
822
823 static int
nouveau_connector_scaler_modes_add(struct drm_connector * connector)824 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
825 {
826 struct nouveau_connector *nv_connector = nouveau_connector(connector);
827 struct drm_display_mode *native = nv_connector->native_mode, *m;
828 struct drm_device *dev = connector->dev;
829 struct moderec *mode = &scaler_modes[0];
830 int modes = 0;
831
832 if (!native)
833 return 0;
834
835 while (mode->hdisplay) {
836 if (mode->hdisplay <= native->hdisplay &&
837 mode->vdisplay <= native->vdisplay &&
838 (mode->hdisplay != native->hdisplay ||
839 mode->vdisplay != native->vdisplay)) {
840 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
841 drm_mode_vrefresh(native), false,
842 false, false);
843 if (!m)
844 continue;
845
846 drm_mode_probed_add(connector, m);
847 modes++;
848 }
849
850 mode++;
851 }
852
853 return modes;
854 }
855
856 static void
nouveau_connector_detect_depth(struct drm_connector * connector)857 nouveau_connector_detect_depth(struct drm_connector *connector)
858 {
859 struct nouveau_drm *drm = nouveau_drm(connector->dev);
860 struct nouveau_connector *nv_connector = nouveau_connector(connector);
861 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
862 struct nvbios *bios = &drm->vbios;
863 struct drm_display_mode *mode = nv_connector->native_mode;
864 bool duallink;
865
866 /* if the edid is feeling nice enough to provide this info, use it */
867 if (nv_connector->edid && connector->display_info.bpc)
868 return;
869
870 /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
871 if (nv_connector->type == DCB_CONNECTOR_eDP) {
872 connector->display_info.bpc = 6;
873 return;
874 }
875
876 /* we're out of options unless we're LVDS, default to 8bpc */
877 if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
878 connector->display_info.bpc = 8;
879 return;
880 }
881
882 connector->display_info.bpc = 6;
883
884 /* LVDS: panel straps */
885 if (bios->fp_no_ddc) {
886 if (bios->fp.if_is_24bit)
887 connector->display_info.bpc = 8;
888 return;
889 }
890
891 /* LVDS: DDC panel, need to first determine the number of links to
892 * know which if_is_24bit flag to check...
893 */
894 if (nv_connector->edid &&
895 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
896 duallink = ((u8 *)nv_connector->edid)[121] == 2;
897 else
898 duallink = mode->clock >= bios->fp.duallink_transition_clk;
899
900 if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
901 ( duallink && (bios->fp.strapless_is_24bit & 2)))
902 connector->display_info.bpc = 8;
903 }
904
905 static int
nouveau_connector_late_register(struct drm_connector * connector)906 nouveau_connector_late_register(struct drm_connector *connector)
907 {
908 int ret;
909
910 ret = nouveau_backlight_init(connector);
911 if (ret)
912 return ret;
913
914 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
915 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
916 ret = drm_dp_aux_register(&nouveau_connector(connector)->aux);
917 if (ret)
918 goto backlight_fini;
919 }
920
921 return 0;
922 backlight_fini:
923 nouveau_backlight_fini(connector);
924 return ret;
925 }
926
927 static void
nouveau_connector_early_unregister(struct drm_connector * connector)928 nouveau_connector_early_unregister(struct drm_connector *connector)
929 {
930 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
931 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)
932 drm_dp_aux_unregister(&nouveau_connector(connector)->aux);
933
934 nouveau_backlight_fini(connector);
935 }
936
937 static int
nouveau_connector_get_modes(struct drm_connector * connector)938 nouveau_connector_get_modes(struct drm_connector *connector)
939 {
940 struct drm_device *dev = connector->dev;
941 struct nouveau_drm *drm = nouveau_drm(dev);
942 struct nouveau_connector *nv_connector = nouveau_connector(connector);
943 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
944 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
945 int ret = 0;
946
947 /* destroy the native mode, the attached monitor could have changed.
948 */
949 if (nv_connector->native_mode) {
950 drm_mode_destroy(dev, nv_connector->native_mode);
951 nv_connector->native_mode = NULL;
952 }
953
954 if (nv_connector->edid)
955 ret = drm_add_edid_modes(connector, nv_connector->edid);
956 else
957 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
958 (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
959 drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
960 struct drm_display_mode mode;
961
962 nouveau_bios_fp_mode(dev, &mode);
963 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
964 }
965
966 /* Determine display colour depth for everything except LVDS now,
967 * DP requires this before mode_valid() is called.
968 */
969 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
970 nouveau_connector_detect_depth(connector);
971
972 /* Find the native mode if this is a digital panel, if we didn't
973 * find any modes through DDC previously add the native mode to
974 * the list of modes.
975 */
976 if (!nv_connector->native_mode)
977 nv_connector->native_mode = nouveau_conn_native_mode(connector);
978 if (ret == 0 && nv_connector->native_mode) {
979 struct drm_display_mode *mode;
980
981 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
982 drm_mode_probed_add(connector, mode);
983 ret = 1;
984 }
985
986 /* Determine LVDS colour depth, must happen after determining
987 * "native" mode as some VBIOS tables require us to use the
988 * pixel clock as part of the lookup...
989 */
990 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
991 nouveau_connector_detect_depth(connector);
992
993 if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
994 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
995
996 if (nv_connector->type == DCB_CONNECTOR_LVDS ||
997 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
998 nv_connector->type == DCB_CONNECTOR_eDP)
999 ret += nouveau_connector_scaler_modes_add(connector);
1000
1001 return ret;
1002 }
1003
1004 static unsigned
get_tmds_link_bandwidth(struct drm_connector * connector)1005 get_tmds_link_bandwidth(struct drm_connector *connector)
1006 {
1007 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1008 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1009 struct nouveau_drm *drm = nouveau_drm(connector->dev);
1010 struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
1011 struct drm_display_info *info = NULL;
1012 unsigned duallink_scale =
1013 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1;
1014
1015 if (drm_detect_hdmi_monitor(nv_connector->edid)) {
1016 info = &nv_connector->base.display_info;
1017 duallink_scale = 1;
1018 }
1019
1020 if (info) {
1021 if (nouveau_hdmimhz > 0)
1022 return nouveau_hdmimhz * 1000;
1023 /* Note: these limits are conservative, some Fermi's
1024 * can do 297 MHz. Unclear how this can be determined.
1025 */
1026 if (drm->client.device.info.chipset >= 0x120) {
1027 const int max_tmds_clock =
1028 info->hdmi.scdc.scrambling.supported ?
1029 594000 : 340000;
1030 return info->max_tmds_clock ?
1031 min(info->max_tmds_clock, max_tmds_clock) :
1032 max_tmds_clock;
1033 }
1034 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
1035 return 297000;
1036 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
1037 return 225000;
1038 }
1039
1040 if (dcb->location != DCB_LOC_ON_CHIP ||
1041 drm->client.device.info.chipset >= 0x46)
1042 return 165000 * duallink_scale;
1043 else if (drm->client.device.info.chipset >= 0x40)
1044 return 155000 * duallink_scale;
1045 else if (drm->client.device.info.chipset >= 0x18)
1046 return 135000 * duallink_scale;
1047 else
1048 return 112000 * duallink_scale;
1049 }
1050
1051 static enum drm_mode_status
nouveau_connector_mode_valid(struct drm_connector * connector,struct drm_display_mode * mode)1052 nouveau_connector_mode_valid(struct drm_connector *connector,
1053 struct drm_display_mode *mode)
1054 {
1055 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1056 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1057 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1058 unsigned int min_clock = 25000, max_clock = min_clock, clock = mode->clock;
1059
1060 switch (nv_encoder->dcb->type) {
1061 case DCB_OUTPUT_LVDS:
1062 if (nv_connector->native_mode &&
1063 (mode->hdisplay > nv_connector->native_mode->hdisplay ||
1064 mode->vdisplay > nv_connector->native_mode->vdisplay))
1065 return MODE_PANEL;
1066
1067 min_clock = 0;
1068 max_clock = 400000;
1069 break;
1070 case DCB_OUTPUT_TMDS:
1071 max_clock = get_tmds_link_bandwidth(connector);
1072 break;
1073 case DCB_OUTPUT_ANALOG:
1074 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1075 if (!max_clock)
1076 max_clock = 350000;
1077 break;
1078 case DCB_OUTPUT_TV:
1079 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1080 case DCB_OUTPUT_DP:
1081 return nv50_dp_mode_valid(connector, nv_encoder, mode, NULL);
1082 default:
1083 BUG();
1084 return MODE_BAD;
1085 }
1086
1087 if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1088 clock *= 2;
1089
1090 if (clock < min_clock)
1091 return MODE_CLOCK_LOW;
1092 if (clock > max_clock)
1093 return MODE_CLOCK_HIGH;
1094
1095 return MODE_OK;
1096 }
1097
1098 static struct drm_encoder *
nouveau_connector_best_encoder(struct drm_connector * connector)1099 nouveau_connector_best_encoder(struct drm_connector *connector)
1100 {
1101 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1102
1103 if (nv_connector->detected_encoder)
1104 return to_drm_encoder(nv_connector->detected_encoder);
1105
1106 return NULL;
1107 }
1108
1109 static int
nouveau_connector_atomic_check(struct drm_connector * connector,struct drm_atomic_state * state)1110 nouveau_connector_atomic_check(struct drm_connector *connector, struct drm_atomic_state *state)
1111 {
1112 struct nouveau_connector *nv_conn = nouveau_connector(connector);
1113 struct drm_connector_state *conn_state =
1114 drm_atomic_get_new_connector_state(state, connector);
1115
1116 if (!nv_conn->dp_encoder || !nv50_has_mst(nouveau_drm(connector->dev)))
1117 return 0;
1118
1119 return drm_dp_mst_root_conn_atomic_check(conn_state, &nv_conn->dp_encoder->dp.mstm->mgr);
1120 }
1121
1122 static const struct drm_connector_helper_funcs
1123 nouveau_connector_helper_funcs = {
1124 .get_modes = nouveau_connector_get_modes,
1125 .mode_valid = nouveau_connector_mode_valid,
1126 .best_encoder = nouveau_connector_best_encoder,
1127 .atomic_check = nouveau_connector_atomic_check,
1128 };
1129
1130 static const struct drm_connector_funcs
1131 nouveau_connector_funcs = {
1132 .dpms = drm_helper_connector_dpms,
1133 .reset = nouveau_conn_reset,
1134 .detect = nouveau_connector_detect,
1135 .force = nouveau_connector_force,
1136 .fill_modes = drm_helper_probe_single_connector_modes,
1137 .set_property = nouveau_connector_set_property,
1138 .destroy = nouveau_connector_destroy,
1139 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1140 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1141 .atomic_set_property = nouveau_conn_atomic_set_property,
1142 .atomic_get_property = nouveau_conn_atomic_get_property,
1143 .late_register = nouveau_connector_late_register,
1144 .early_unregister = nouveau_connector_early_unregister,
1145 };
1146
1147 static const struct drm_connector_funcs
1148 nouveau_connector_funcs_lvds = {
1149 .dpms = drm_helper_connector_dpms,
1150 .reset = nouveau_conn_reset,
1151 .detect = nouveau_connector_detect_lvds,
1152 .force = nouveau_connector_force,
1153 .fill_modes = drm_helper_probe_single_connector_modes,
1154 .set_property = nouveau_connector_set_property,
1155 .destroy = nouveau_connector_destroy,
1156 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1157 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1158 .atomic_set_property = nouveau_conn_atomic_set_property,
1159 .atomic_get_property = nouveau_conn_atomic_get_property,
1160 .late_register = nouveau_connector_late_register,
1161 .early_unregister = nouveau_connector_early_unregister,
1162 };
1163
1164 void
nouveau_connector_hpd(struct nouveau_connector * nv_connector,u64 bits)1165 nouveau_connector_hpd(struct nouveau_connector *nv_connector, u64 bits)
1166 {
1167 struct nouveau_drm *drm = nouveau_drm(nv_connector->base.dev);
1168 u32 mask = drm_connector_mask(&nv_connector->base);
1169 unsigned long flags;
1170
1171 spin_lock_irqsave(&drm->hpd_lock, flags);
1172 if (!(drm->hpd_pending & mask)) {
1173 nv_connector->hpd_pending |= bits;
1174 drm->hpd_pending |= mask;
1175 schedule_work(&drm->hpd_work);
1176 }
1177 spin_unlock_irqrestore(&drm->hpd_lock, flags);
1178 }
1179
1180 static int
nouveau_connector_irq(struct nvif_event * event,void * repv,u32 repc)1181 nouveau_connector_irq(struct nvif_event *event, void *repv, u32 repc)
1182 {
1183 struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), irq);
1184
1185 schedule_work(&nv_connector->irq_work);
1186 return NVIF_EVENT_KEEP;
1187 }
1188
1189 static int
nouveau_connector_hotplug(struct nvif_event * event,void * repv,u32 repc)1190 nouveau_connector_hotplug(struct nvif_event *event, void *repv, u32 repc)
1191 {
1192 struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), hpd);
1193 struct nvif_conn_event_v0 *rep = repv;
1194
1195 nouveau_connector_hpd(nv_connector, rep->types);
1196 return NVIF_EVENT_KEEP;
1197 }
1198
1199 static ssize_t
nouveau_connector_aux_xfer(struct drm_dp_aux * obj,struct drm_dp_aux_msg * msg)1200 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1201 {
1202 struct nouveau_connector *nv_connector =
1203 container_of(obj, typeof(*nv_connector), aux);
1204 struct nouveau_encoder *nv_encoder;
1205 struct nvkm_i2c_aux *aux;
1206 u8 size = msg->size;
1207 int ret;
1208
1209 nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1210 if (!nv_encoder || !(aux = nv_encoder->aux))
1211 return -ENODEV;
1212 if (WARN_ON(msg->size > 16))
1213 return -E2BIG;
1214
1215 ret = nvkm_i2c_aux_acquire(aux);
1216 if (ret)
1217 return ret;
1218
1219 ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1220 msg->buffer, &size);
1221 nvkm_i2c_aux_release(aux);
1222 if (ret >= 0) {
1223 msg->reply = ret;
1224 return size;
1225 }
1226
1227 return ret;
1228 }
1229
1230 static int
drm_conntype_from_dcb(enum dcb_connector_type dcb)1231 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1232 {
1233 switch (dcb) {
1234 case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA;
1235 case DCB_CONNECTOR_TV_0 :
1236 case DCB_CONNECTOR_TV_1 :
1237 case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV;
1238 case DCB_CONNECTOR_DMS59_0 :
1239 case DCB_CONNECTOR_DMS59_1 :
1240 case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII;
1241 case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID;
1242 case DCB_CONNECTOR_LVDS :
1243 case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1244 case DCB_CONNECTOR_DMS59_DP0:
1245 case DCB_CONNECTOR_DMS59_DP1:
1246 case DCB_CONNECTOR_DP :
1247 case DCB_CONNECTOR_mDP :
1248 case DCB_CONNECTOR_USB_C : return DRM_MODE_CONNECTOR_DisplayPort;
1249 case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP;
1250 case DCB_CONNECTOR_HDMI_0 :
1251 case DCB_CONNECTOR_HDMI_1 :
1252 case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA;
1253 case DCB_CONNECTOR_WFD : return DRM_MODE_CONNECTOR_VIRTUAL;
1254 default:
1255 break;
1256 }
1257
1258 return DRM_MODE_CONNECTOR_Unknown;
1259 }
1260
1261 struct drm_connector *
nouveau_connector_create(struct drm_device * dev,const struct dcb_output * dcbe)1262 nouveau_connector_create(struct drm_device *dev,
1263 const struct dcb_output *dcbe)
1264 {
1265 const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1266 struct nouveau_drm *drm = nouveau_drm(dev);
1267 struct nouveau_display *disp = nouveau_display(dev);
1268 struct nouveau_connector *nv_connector = NULL;
1269 struct drm_connector *connector;
1270 struct drm_connector_list_iter conn_iter;
1271 char aux_name[48] = {0};
1272 int index = dcbe->connector;
1273 int type, ret = 0;
1274 bool dummy;
1275
1276 drm_connector_list_iter_begin(dev, &conn_iter);
1277 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1278 nv_connector = nouveau_connector(connector);
1279 if (nv_connector->index == index) {
1280 drm_connector_list_iter_end(&conn_iter);
1281 return connector;
1282 }
1283 }
1284 drm_connector_list_iter_end(&conn_iter);
1285
1286 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1287 if (!nv_connector)
1288 return ERR_PTR(-ENOMEM);
1289
1290 connector = &nv_connector->base;
1291 nv_connector->index = index;
1292 INIT_WORK(&nv_connector->irq_work, nouveau_dp_irq);
1293
1294 /* attempt to parse vbios connector type and hotplug gpio */
1295 nv_connector->dcb = olddcb_conn(dev, index);
1296 if (nv_connector->dcb) {
1297 u32 entry = ROM16(nv_connector->dcb[0]);
1298 if (olddcb_conntab(dev)[3] >= 4)
1299 entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1300
1301 nv_connector->type = nv_connector->dcb[0];
1302 if (drm_conntype_from_dcb(nv_connector->type) ==
1303 DRM_MODE_CONNECTOR_Unknown) {
1304 NV_WARN(drm, "unknown connector type %02x\n",
1305 nv_connector->type);
1306 nv_connector->type = DCB_CONNECTOR_NONE;
1307 }
1308
1309 /* Gigabyte NX85T */
1310 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1311 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1312 nv_connector->type = DCB_CONNECTOR_DVI_I;
1313 }
1314
1315 /* Gigabyte GV-NX86T512H */
1316 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1317 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1318 nv_connector->type = DCB_CONNECTOR_DVI_I;
1319 }
1320 } else {
1321 nv_connector->type = DCB_CONNECTOR_NONE;
1322 }
1323
1324 /* no vbios data, or an unknown dcb connector type - attempt to
1325 * figure out something suitable ourselves
1326 */
1327 if (nv_connector->type == DCB_CONNECTOR_NONE) {
1328 struct nouveau_drm *drm = nouveau_drm(dev);
1329 struct dcb_table *dcbt = &drm->vbios.dcb;
1330 u32 encoders = 0;
1331 int i;
1332
1333 for (i = 0; i < dcbt->entries; i++) {
1334 if (dcbt->entry[i].connector == nv_connector->index)
1335 encoders |= (1 << dcbt->entry[i].type);
1336 }
1337
1338 if (encoders & (1 << DCB_OUTPUT_DP)) {
1339 if (encoders & (1 << DCB_OUTPUT_TMDS))
1340 nv_connector->type = DCB_CONNECTOR_DP;
1341 else
1342 nv_connector->type = DCB_CONNECTOR_eDP;
1343 } else
1344 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1345 if (encoders & (1 << DCB_OUTPUT_ANALOG))
1346 nv_connector->type = DCB_CONNECTOR_DVI_I;
1347 else
1348 nv_connector->type = DCB_CONNECTOR_DVI_D;
1349 } else
1350 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1351 nv_connector->type = DCB_CONNECTOR_VGA;
1352 } else
1353 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1354 nv_connector->type = DCB_CONNECTOR_LVDS;
1355 } else
1356 if (encoders & (1 << DCB_OUTPUT_TV)) {
1357 nv_connector->type = DCB_CONNECTOR_TV_0;
1358 }
1359 }
1360
1361 switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1362 case DRM_MODE_CONNECTOR_LVDS:
1363 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1364 if (ret) {
1365 NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1366 kfree(nv_connector);
1367 return ERR_PTR(ret);
1368 }
1369
1370 funcs = &nouveau_connector_funcs_lvds;
1371 break;
1372 case DRM_MODE_CONNECTOR_DisplayPort:
1373 case DRM_MODE_CONNECTOR_eDP:
1374 nv_connector->aux.dev = connector->kdev;
1375 nv_connector->aux.drm_dev = dev;
1376 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1377 snprintf(aux_name, sizeof(aux_name), "sor-%04x-%04x",
1378 dcbe->hasht, dcbe->hashm);
1379 nv_connector->aux.name = kstrdup(aux_name, GFP_KERNEL);
1380 if (!nv_connector->aux.name) {
1381 kfree(nv_connector);
1382 return ERR_PTR(-ENOMEM);
1383 }
1384 drm_dp_aux_init(&nv_connector->aux);
1385 break;
1386 default:
1387 funcs = &nouveau_connector_funcs;
1388 break;
1389 }
1390
1391 /* HDMI 3D support */
1392 if ((disp->disp.object.oclass >= G82_DISP)
1393 && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1394 || (type == DRM_MODE_CONNECTOR_eDP)
1395 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1396 connector->stereo_allowed = true;
1397
1398 /* defaults, will get overridden in detect() */
1399 connector->interlace_allowed = false;
1400 connector->doublescan_allowed = false;
1401
1402 drm_connector_init(dev, connector, funcs, type);
1403 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1404 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1405
1406 if (nv_connector->dcb && (disp->disp.conn_mask & BIT(nv_connector->index))) {
1407 ret = nvif_conn_ctor(&disp->disp, nv_connector->base.name, nv_connector->index,
1408 &nv_connector->conn);
1409 if (ret) {
1410 kfree(nv_connector);
1411 return ERR_PTR(ret);
1412 }
1413
1414 ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsHotplug",
1415 nouveau_connector_hotplug,
1416 NVIF_CONN_EVENT_V0_PLUG | NVIF_CONN_EVENT_V0_UNPLUG,
1417 &nv_connector->hpd);
1418 if (ret == 0)
1419 connector->polled = DRM_CONNECTOR_POLL_HPD;
1420
1421 if (nv_connector->aux.transfer) {
1422 ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsDpIrq",
1423 nouveau_connector_irq, NVIF_CONN_EVENT_V0_IRQ,
1424 &nv_connector->irq);
1425 if (ret) {
1426 nvif_event_dtor(&nv_connector->hpd);
1427 nvif_conn_dtor(&nv_connector->conn);
1428 kfree(nv_connector);
1429 return ERR_PTR(ret);
1430 }
1431 }
1432 }
1433
1434 connector->funcs->reset(connector);
1435 nouveau_conn_attach_properties(connector);
1436
1437 /* Default scaling mode */
1438 switch (nv_connector->type) {
1439 case DCB_CONNECTOR_LVDS:
1440 case DCB_CONNECTOR_LVDS_SPWG:
1441 case DCB_CONNECTOR_eDP:
1442 /* see note in nouveau_connector_set_property() */
1443 if (disp->disp.object.oclass < NV50_DISP) {
1444 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1445 break;
1446 }
1447 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1448 break;
1449 default:
1450 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1451 break;
1452 }
1453
1454 /* dithering properties */
1455 switch (nv_connector->type) {
1456 case DCB_CONNECTOR_TV_0:
1457 case DCB_CONNECTOR_TV_1:
1458 case DCB_CONNECTOR_TV_3:
1459 case DCB_CONNECTOR_VGA:
1460 break;
1461 default:
1462 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1463 break;
1464 }
1465
1466 switch (type) {
1467 case DRM_MODE_CONNECTOR_DisplayPort:
1468 nv_connector->dp_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1469 fallthrough;
1470 case DRM_MODE_CONNECTOR_eDP:
1471 drm_dp_cec_register_connector(&nv_connector->aux, connector);
1472 break;
1473 }
1474
1475 drm_connector_register(connector);
1476 return connector;
1477 }
1478