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 nvif_conn_dtor(&nv_connector->conn);
406 kfree(connector);
407 }
408
409 static struct nouveau_encoder *
nouveau_connector_ddc_detect(struct drm_connector * connector)410 nouveau_connector_ddc_detect(struct drm_connector *connector)
411 {
412 struct drm_device *dev = connector->dev;
413 struct pci_dev *pdev = to_pci_dev(dev->dev);
414 struct nouveau_connector *conn = nouveau_connector(connector);
415 struct nouveau_encoder *nv_encoder = NULL, *found = NULL;
416 struct drm_encoder *encoder;
417 int ret;
418 bool switcheroo_ddc = false;
419
420 drm_connector_for_each_possible_encoder(connector, encoder) {
421 nv_encoder = nouveau_encoder(encoder);
422
423 if (nvif_object_constructed(&nv_encoder->outp.object)) {
424 enum nvif_outp_detect_status status;
425
426 if (nv_encoder->dcb->type == DCB_OUTPUT_DP) {
427 ret = nouveau_dp_detect(conn, nv_encoder);
428 if (ret == NOUVEAU_DP_MST)
429 return NULL;
430 if (ret != NOUVEAU_DP_SST)
431 continue;
432
433 return nv_encoder;
434 } else {
435 status = nvif_outp_detect(&nv_encoder->outp);
436 switch (status) {
437 case PRESENT:
438 return nv_encoder;
439 case NOT_PRESENT:
440 continue;
441 case UNKNOWN:
442 break;
443 default:
444 WARN_ON(1);
445 break;
446 }
447 }
448 }
449
450 if (!nv_encoder->i2c)
451 continue;
452
453 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS) {
454 switcheroo_ddc = !!(vga_switcheroo_handler_flags() &
455 VGA_SWITCHEROO_CAN_SWITCH_DDC);
456 }
457
458 if (switcheroo_ddc)
459 vga_switcheroo_lock_ddc(pdev);
460 if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
461 found = nv_encoder;
462 if (switcheroo_ddc)
463 vga_switcheroo_unlock_ddc(pdev);
464
465 if (found)
466 break;
467 }
468
469 return found;
470 }
471
472 static struct nouveau_encoder *
nouveau_connector_of_detect(struct drm_connector * connector)473 nouveau_connector_of_detect(struct drm_connector *connector)
474 {
475 #ifdef __powerpc__
476 struct drm_device *dev = connector->dev;
477 struct nouveau_connector *nv_connector = nouveau_connector(connector);
478 struct nouveau_encoder *nv_encoder;
479 struct pci_dev *pdev = to_pci_dev(dev->dev);
480 struct device_node *cn, *dn = pci_device_to_OF_node(pdev);
481
482 if (!dn ||
483 !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
484 (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
485 return NULL;
486
487 for_each_child_of_node(dn, cn) {
488 const char *name = of_get_property(cn, "name", NULL);
489 const void *edid = of_get_property(cn, "EDID", NULL);
490 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
491
492 if (nv_encoder->dcb->i2c_index == idx && edid) {
493 nv_connector->edid =
494 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
495 of_node_put(cn);
496 return nv_encoder;
497 }
498 }
499 #endif
500 return NULL;
501 }
502
503 static void
nouveau_connector_set_encoder(struct drm_connector * connector,struct nouveau_encoder * nv_encoder)504 nouveau_connector_set_encoder(struct drm_connector *connector,
505 struct nouveau_encoder *nv_encoder)
506 {
507 struct nouveau_connector *nv_connector = nouveau_connector(connector);
508 struct nouveau_drm *drm = nouveau_drm(connector->dev);
509 struct drm_device *dev = connector->dev;
510 struct pci_dev *pdev = to_pci_dev(dev->dev);
511
512 if (nv_connector->detected_encoder == nv_encoder)
513 return;
514 nv_connector->detected_encoder = nv_encoder;
515
516 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
517 if (nv_encoder->dcb->type == DCB_OUTPUT_DP)
518 connector->interlace_allowed =
519 nv_encoder->caps.dp_interlace;
520 else
521 connector->interlace_allowed =
522 drm->client.device.info.family < NV_DEVICE_INFO_V0_VOLTA;
523 connector->doublescan_allowed = true;
524 } else
525 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
526 nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
527 connector->doublescan_allowed = false;
528 connector->interlace_allowed = false;
529 } else {
530 connector->doublescan_allowed = true;
531 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
532 (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
533 (pdev->device & 0x0ff0) != 0x0100 &&
534 (pdev->device & 0x0ff0) != 0x0150))
535 /* HW is broken */
536 connector->interlace_allowed = false;
537 else
538 connector->interlace_allowed = true;
539 }
540
541 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
542 drm_object_property_set_value(&connector->base,
543 dev->mode_config.dvi_i_subconnector_property,
544 nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
545 DRM_MODE_SUBCONNECTOR_DVID :
546 DRM_MODE_SUBCONNECTOR_DVIA);
547 }
548 }
549
550 static void
nouveau_connector_set_edid(struct nouveau_connector * nv_connector,struct edid * edid)551 nouveau_connector_set_edid(struct nouveau_connector *nv_connector,
552 struct edid *edid)
553 {
554 if (nv_connector->edid != edid) {
555 struct edid *old_edid = nv_connector->edid;
556
557 drm_connector_update_edid_property(&nv_connector->base, edid);
558 kfree(old_edid);
559 nv_connector->edid = edid;
560 }
561 }
562
563 static enum drm_connector_status
nouveau_connector_detect(struct drm_connector * connector,bool force)564 nouveau_connector_detect(struct drm_connector *connector, bool force)
565 {
566 struct drm_device *dev = connector->dev;
567 struct nouveau_drm *drm = nouveau_drm(dev);
568 struct nouveau_connector *nv_connector = nouveau_connector(connector);
569 struct nouveau_encoder *nv_encoder = NULL;
570 struct nouveau_encoder *nv_partner;
571 int type;
572 int ret;
573 enum drm_connector_status conn_status = connector_status_disconnected;
574
575 /* Outputs are only polled while runtime active, so resuming the
576 * device here is unnecessary (and would deadlock upon runtime suspend
577 * because it waits for polling to finish). We do however, want to
578 * prevent the autosuspend timer from elapsing during this operation
579 * if possible.
580 */
581 if (drm_kms_helper_is_poll_worker()) {
582 pm_runtime_get_noresume(dev->dev);
583 } else {
584 ret = pm_runtime_get_sync(dev->dev);
585 if (ret < 0 && ret != -EACCES) {
586 pm_runtime_put_autosuspend(dev->dev);
587 nouveau_connector_set_edid(nv_connector, NULL);
588 return conn_status;
589 }
590 }
591
592 nv_encoder = nouveau_connector_ddc_detect(connector);
593 if (nv_encoder) {
594 struct edid *new_edid = NULL;
595
596 if (nv_encoder->i2c) {
597 if ((vga_switcheroo_handler_flags() & VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
598 nv_connector->type == DCB_CONNECTOR_LVDS)
599 new_edid = drm_get_edid_switcheroo(connector, nv_encoder->i2c);
600 else
601 new_edid = drm_get_edid(connector, nv_encoder->i2c);
602 } else {
603 ret = nvif_outp_edid_get(&nv_encoder->outp, (u8 **)&new_edid);
604 if (ret < 0)
605 return connector_status_disconnected;
606 }
607
608 nouveau_connector_set_edid(nv_connector, new_edid);
609 if (!nv_connector->edid) {
610 NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
611 connector->name);
612 goto detect_analog;
613 }
614
615 /* Override encoder type for DVI-I based on whether EDID
616 * says the display is digital or analog, both use the
617 * same i2c channel so the value returned from ddc_detect
618 * isn't necessarily correct.
619 */
620 nv_partner = NULL;
621 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
622 nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
623 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
624 nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
625
626 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
627 nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
628 (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
629 nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
630 if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
631 type = DCB_OUTPUT_TMDS;
632 else
633 type = DCB_OUTPUT_ANALOG;
634
635 nv_encoder = find_encoder(connector, type);
636 }
637
638 nouveau_connector_set_encoder(connector, nv_encoder);
639 conn_status = connector_status_connected;
640
641 if (nv_encoder->dcb->type == DCB_OUTPUT_DP)
642 drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid);
643
644 goto out;
645 } else {
646 nouveau_connector_set_edid(nv_connector, NULL);
647 }
648
649 nv_encoder = nouveau_connector_of_detect(connector);
650 if (nv_encoder) {
651 nouveau_connector_set_encoder(connector, nv_encoder);
652 conn_status = connector_status_connected;
653 goto out;
654 }
655
656 detect_analog:
657 nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
658 if (!nv_encoder && !nouveau_tv_disable)
659 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
660 if (nv_encoder && force) {
661 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
662 const struct drm_encoder_helper_funcs *helper =
663 encoder->helper_private;
664
665 if (helper->detect(encoder, connector) ==
666 connector_status_connected) {
667 nouveau_connector_set_encoder(connector, nv_encoder);
668 conn_status = connector_status_connected;
669 goto out;
670 }
671 }
672
673 out:
674 if (!nv_connector->edid)
675 drm_dp_cec_unset_edid(&nv_connector->aux);
676
677 pm_runtime_mark_last_busy(dev->dev);
678 pm_runtime_put_autosuspend(dev->dev);
679
680 return conn_status;
681 }
682
683 static enum drm_connector_status
nouveau_connector_detect_lvds(struct drm_connector * connector,bool force)684 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
685 {
686 struct drm_device *dev = connector->dev;
687 struct nouveau_drm *drm = nouveau_drm(dev);
688 struct nouveau_connector *nv_connector = nouveau_connector(connector);
689 struct nouveau_encoder *nv_encoder = NULL;
690 struct edid *edid = NULL;
691 enum drm_connector_status status = connector_status_disconnected;
692
693 nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
694 if (!nv_encoder)
695 goto out;
696
697 /* Try retrieving EDID via DDC */
698 if (!drm->vbios.fp_no_ddc) {
699 status = nouveau_connector_detect(connector, force);
700 if (status == connector_status_connected) {
701 edid = nv_connector->edid;
702 goto out;
703 }
704 }
705
706 /* On some laptops (Sony, i'm looking at you) there appears to
707 * be no direct way of accessing the panel's EDID. The only
708 * option available to us appears to be to ask ACPI for help..
709 *
710 * It's important this check's before trying straps, one of the
711 * said manufacturer's laptops are configured in such a way
712 * the nouveau decides an entry in the VBIOS FP mode table is
713 * valid - it's not (rh#613284)
714 */
715 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
716 edid = nouveau_acpi_edid(dev, connector);
717 if (edid) {
718 status = connector_status_connected;
719 goto out;
720 }
721 }
722
723 /* If no EDID found above, and the VBIOS indicates a hardcoded
724 * modeline is avalilable for the panel, set it as the panel's
725 * native mode and exit.
726 */
727 if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
728 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
729 status = connector_status_connected;
730 goto out;
731 }
732
733 /* Still nothing, some VBIOS images have a hardcoded EDID block
734 * stored for the panel stored in them.
735 */
736 if (!drm->vbios.fp_no_ddc) {
737 edid = (struct edid *)nouveau_bios_embedded_edid(dev);
738 if (edid) {
739 edid = kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
740 if (edid)
741 status = connector_status_connected;
742 }
743 }
744
745 out:
746 #if defined(CONFIG_ACPI_BUTTON) || \
747 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
748 if (status == connector_status_connected &&
749 !nouveau_ignorelid && !acpi_lid_open())
750 status = connector_status_unknown;
751 #endif
752
753 nouveau_connector_set_edid(nv_connector, edid);
754 if (nv_encoder)
755 nouveau_connector_set_encoder(connector, nv_encoder);
756 return status;
757 }
758
759 static void
nouveau_connector_force(struct drm_connector * connector)760 nouveau_connector_force(struct drm_connector *connector)
761 {
762 struct nouveau_drm *drm = nouveau_drm(connector->dev);
763 struct nouveau_connector *nv_connector = nouveau_connector(connector);
764 struct nouveau_encoder *nv_encoder;
765 int type;
766
767 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
768 if (connector->force == DRM_FORCE_ON_DIGITAL)
769 type = DCB_OUTPUT_TMDS;
770 else
771 type = DCB_OUTPUT_ANALOG;
772 } else
773 type = DCB_OUTPUT_ANY;
774
775 nv_encoder = find_encoder(connector, type);
776 if (!nv_encoder) {
777 NV_ERROR(drm, "can't find encoder to force %s on!\n",
778 connector->name);
779 connector->status = connector_status_disconnected;
780 return;
781 }
782
783 nouveau_connector_set_encoder(connector, nv_encoder);
784 }
785
786 static int
nouveau_connector_set_property(struct drm_connector * connector,struct drm_property * property,uint64_t value)787 nouveau_connector_set_property(struct drm_connector *connector,
788 struct drm_property *property, uint64_t value)
789 {
790 struct nouveau_connector *nv_connector = nouveau_connector(connector);
791 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
792 struct nouveau_conn_atom *asyc = &nv_connector->properties_state;
793 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
794 int ret;
795
796 ret = connector->funcs->atomic_set_property(&nv_connector->base,
797 &asyc->state,
798 property, value);
799 if (ret) {
800 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
801 return get_slave_funcs(encoder)->set_property(
802 encoder, connector, property, value);
803 return ret;
804 }
805
806 nv_connector->scaling_mode = asyc->scaler.mode;
807 nv_connector->dithering_mode = asyc->dither.mode;
808
809 if (connector->encoder && connector->encoder->crtc) {
810 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
811 &connector->encoder->crtc->mode,
812 connector->encoder->crtc->x,
813 connector->encoder->crtc->y,
814 NULL);
815 if (!ret)
816 return -EINVAL;
817 }
818
819 return 0;
820 }
821
822 struct moderec {
823 int hdisplay;
824 int vdisplay;
825 };
826
827 static struct moderec scaler_modes[] = {
828 { 1920, 1200 },
829 { 1920, 1080 },
830 { 1680, 1050 },
831 { 1600, 1200 },
832 { 1400, 1050 },
833 { 1280, 1024 },
834 { 1280, 960 },
835 { 1152, 864 },
836 { 1024, 768 },
837 { 800, 600 },
838 { 720, 400 },
839 { 640, 480 },
840 { 640, 400 },
841 { 640, 350 },
842 {}
843 };
844
845 static int
nouveau_connector_scaler_modes_add(struct drm_connector * connector)846 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
847 {
848 struct nouveau_connector *nv_connector = nouveau_connector(connector);
849 struct drm_display_mode *native = nv_connector->native_mode, *m;
850 struct drm_device *dev = connector->dev;
851 struct moderec *mode = &scaler_modes[0];
852 int modes = 0;
853
854 if (!native)
855 return 0;
856
857 while (mode->hdisplay) {
858 if (mode->hdisplay <= native->hdisplay &&
859 mode->vdisplay <= native->vdisplay &&
860 (mode->hdisplay != native->hdisplay ||
861 mode->vdisplay != native->vdisplay)) {
862 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
863 drm_mode_vrefresh(native), false,
864 false, false);
865 if (!m)
866 continue;
867
868 drm_mode_probed_add(connector, m);
869 modes++;
870 }
871
872 mode++;
873 }
874
875 return modes;
876 }
877
878 static void
nouveau_connector_detect_depth(struct drm_connector * connector)879 nouveau_connector_detect_depth(struct drm_connector *connector)
880 {
881 struct nouveau_drm *drm = nouveau_drm(connector->dev);
882 struct nouveau_connector *nv_connector = nouveau_connector(connector);
883 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
884 struct nvbios *bios = &drm->vbios;
885 struct drm_display_mode *mode = nv_connector->native_mode;
886 bool duallink;
887
888 /* if the edid is feeling nice enough to provide this info, use it */
889 if (nv_connector->edid && connector->display_info.bpc)
890 return;
891
892 /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
893 if (nv_connector->type == DCB_CONNECTOR_eDP) {
894 connector->display_info.bpc = 6;
895 return;
896 }
897
898 /* we're out of options unless we're LVDS, default to 8bpc */
899 if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
900 connector->display_info.bpc = 8;
901 return;
902 }
903
904 connector->display_info.bpc = 6;
905
906 /* LVDS: panel straps */
907 if (bios->fp_no_ddc) {
908 if (bios->fp.if_is_24bit)
909 connector->display_info.bpc = 8;
910 return;
911 }
912
913 /* LVDS: DDC panel, need to first determine the number of links to
914 * know which if_is_24bit flag to check...
915 */
916 if (nv_connector->edid &&
917 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
918 duallink = ((u8 *)nv_connector->edid)[121] == 2;
919 else
920 duallink = mode->clock >= bios->fp.duallink_transition_clk;
921
922 if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
923 ( duallink && (bios->fp.strapless_is_24bit & 2)))
924 connector->display_info.bpc = 8;
925 }
926
927 static int
nouveau_connector_late_register(struct drm_connector * connector)928 nouveau_connector_late_register(struct drm_connector *connector)
929 {
930 int ret;
931
932 ret = nouveau_backlight_init(connector);
933 if (ret)
934 return ret;
935
936 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
937 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
938 ret = drm_dp_aux_register(&nouveau_connector(connector)->aux);
939 if (ret)
940 goto backlight_fini;
941 }
942
943 return 0;
944 backlight_fini:
945 nouveau_backlight_fini(connector);
946 return ret;
947 }
948
949 static void
nouveau_connector_early_unregister(struct drm_connector * connector)950 nouveau_connector_early_unregister(struct drm_connector *connector)
951 {
952 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
953 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)
954 drm_dp_aux_unregister(&nouveau_connector(connector)->aux);
955
956 nouveau_backlight_fini(connector);
957 }
958
959 static int
nouveau_connector_get_modes(struct drm_connector * connector)960 nouveau_connector_get_modes(struct drm_connector *connector)
961 {
962 struct drm_device *dev = connector->dev;
963 struct nouveau_drm *drm = nouveau_drm(dev);
964 struct nouveau_connector *nv_connector = nouveau_connector(connector);
965 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
966 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
967 int ret = 0;
968
969 /* destroy the native mode, the attached monitor could have changed.
970 */
971 if (nv_connector->native_mode) {
972 drm_mode_destroy(dev, nv_connector->native_mode);
973 nv_connector->native_mode = NULL;
974 }
975
976 if (nv_connector->edid)
977 ret = drm_add_edid_modes(connector, nv_connector->edid);
978 else
979 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
980 (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
981 drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
982 struct drm_display_mode mode;
983
984 nouveau_bios_fp_mode(dev, &mode);
985 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
986 }
987
988 /* Determine display colour depth for everything except LVDS now,
989 * DP requires this before mode_valid() is called.
990 */
991 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
992 nouveau_connector_detect_depth(connector);
993
994 /* Find the native mode if this is a digital panel, if we didn't
995 * find any modes through DDC previously add the native mode to
996 * the list of modes.
997 */
998 if (!nv_connector->native_mode)
999 nv_connector->native_mode = nouveau_conn_native_mode(connector);
1000 if (ret == 0 && nv_connector->native_mode) {
1001 struct drm_display_mode *mode;
1002
1003 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
1004 if (!mode)
1005 return 0;
1006
1007 drm_mode_probed_add(connector, mode);
1008 ret = 1;
1009 }
1010
1011 /* Determine LVDS colour depth, must happen after determining
1012 * "native" mode as some VBIOS tables require us to use the
1013 * pixel clock as part of the lookup...
1014 */
1015 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS && nv_connector->native_mode)
1016 nouveau_connector_detect_depth(connector);
1017
1018 if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
1019 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
1020
1021 if (nv_connector->type == DCB_CONNECTOR_LVDS ||
1022 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
1023 nv_connector->type == DCB_CONNECTOR_eDP)
1024 ret += nouveau_connector_scaler_modes_add(connector);
1025
1026 return ret;
1027 }
1028
1029 static unsigned
get_tmds_link_bandwidth(struct drm_connector * connector)1030 get_tmds_link_bandwidth(struct drm_connector *connector)
1031 {
1032 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1033 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1034 struct nouveau_drm *drm = nouveau_drm(connector->dev);
1035 struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
1036 struct drm_display_info *info = NULL;
1037 unsigned duallink_scale =
1038 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1;
1039
1040 if (nv_connector->base.display_info.is_hdmi) {
1041 info = &nv_connector->base.display_info;
1042 duallink_scale = 1;
1043 }
1044
1045 if (info) {
1046 if (nouveau_hdmimhz > 0)
1047 return nouveau_hdmimhz * 1000;
1048 /* Note: these limits are conservative, some Fermi's
1049 * can do 297 MHz. Unclear how this can be determined.
1050 */
1051 if (drm->client.device.info.chipset >= 0x120) {
1052 const int max_tmds_clock =
1053 info->hdmi.scdc.scrambling.supported ?
1054 594000 : 340000;
1055 return info->max_tmds_clock ?
1056 min(info->max_tmds_clock, max_tmds_clock) :
1057 max_tmds_clock;
1058 }
1059 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
1060 return 297000;
1061 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
1062 return 225000;
1063 }
1064
1065 if (dcb->location != DCB_LOC_ON_CHIP ||
1066 drm->client.device.info.chipset >= 0x46)
1067 return 165000 * duallink_scale;
1068 else if (drm->client.device.info.chipset >= 0x40)
1069 return 155000 * duallink_scale;
1070 else if (drm->client.device.info.chipset >= 0x18)
1071 return 135000 * duallink_scale;
1072 else
1073 return 112000 * duallink_scale;
1074 }
1075
1076 static enum drm_mode_status
nouveau_connector_mode_valid(struct drm_connector * connector,struct drm_display_mode * mode)1077 nouveau_connector_mode_valid(struct drm_connector *connector,
1078 struct drm_display_mode *mode)
1079 {
1080 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1081 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1082 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1083 unsigned int min_clock = 25000, max_clock = min_clock, clock = mode->clock;
1084
1085 switch (nv_encoder->dcb->type) {
1086 case DCB_OUTPUT_LVDS:
1087 if (nv_connector->native_mode &&
1088 (mode->hdisplay > nv_connector->native_mode->hdisplay ||
1089 mode->vdisplay > nv_connector->native_mode->vdisplay))
1090 return MODE_PANEL;
1091
1092 min_clock = 0;
1093 max_clock = 400000;
1094 break;
1095 case DCB_OUTPUT_TMDS:
1096 max_clock = get_tmds_link_bandwidth(connector);
1097 break;
1098 case DCB_OUTPUT_ANALOG:
1099 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1100 if (!max_clock)
1101 max_clock = 350000;
1102 break;
1103 case DCB_OUTPUT_TV:
1104 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1105 case DCB_OUTPUT_DP:
1106 return nv50_dp_mode_valid(nv_encoder, mode, NULL);
1107 default:
1108 BUG();
1109 return MODE_BAD;
1110 }
1111
1112 if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1113 clock *= 2;
1114
1115 if (clock < min_clock)
1116 return MODE_CLOCK_LOW;
1117 if (clock > max_clock)
1118 return MODE_CLOCK_HIGH;
1119
1120 return MODE_OK;
1121 }
1122
1123 static struct drm_encoder *
nouveau_connector_best_encoder(struct drm_connector * connector)1124 nouveau_connector_best_encoder(struct drm_connector *connector)
1125 {
1126 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1127
1128 if (nv_connector->detected_encoder)
1129 return to_drm_encoder(nv_connector->detected_encoder);
1130
1131 return NULL;
1132 }
1133
1134 static int
nouveau_connector_atomic_check(struct drm_connector * connector,struct drm_atomic_state * state)1135 nouveau_connector_atomic_check(struct drm_connector *connector, struct drm_atomic_state *state)
1136 {
1137 struct nouveau_connector *nv_conn = nouveau_connector(connector);
1138 struct drm_connector_state *conn_state =
1139 drm_atomic_get_new_connector_state(state, connector);
1140
1141 if (!nv_conn->dp_encoder || !nv_conn->dp_encoder->dp.mstm)
1142 return 0;
1143
1144 return drm_dp_mst_root_conn_atomic_check(conn_state, &nv_conn->dp_encoder->dp.mstm->mgr);
1145 }
1146
1147 static const struct drm_connector_helper_funcs
1148 nouveau_connector_helper_funcs = {
1149 .get_modes = nouveau_connector_get_modes,
1150 .mode_valid = nouveau_connector_mode_valid,
1151 .best_encoder = nouveau_connector_best_encoder,
1152 .atomic_check = nouveau_connector_atomic_check,
1153 };
1154
1155 static const struct drm_connector_funcs
1156 nouveau_connector_funcs = {
1157 .dpms = drm_helper_connector_dpms,
1158 .reset = nouveau_conn_reset,
1159 .detect = nouveau_connector_detect,
1160 .force = nouveau_connector_force,
1161 .fill_modes = drm_helper_probe_single_connector_modes,
1162 .set_property = nouveau_connector_set_property,
1163 .destroy = nouveau_connector_destroy,
1164 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1165 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1166 .atomic_set_property = nouveau_conn_atomic_set_property,
1167 .atomic_get_property = nouveau_conn_atomic_get_property,
1168 .late_register = nouveau_connector_late_register,
1169 .early_unregister = nouveau_connector_early_unregister,
1170 };
1171
1172 static const struct drm_connector_funcs
1173 nouveau_connector_funcs_lvds = {
1174 .dpms = drm_helper_connector_dpms,
1175 .reset = nouveau_conn_reset,
1176 .detect = nouveau_connector_detect_lvds,
1177 .force = nouveau_connector_force,
1178 .fill_modes = drm_helper_probe_single_connector_modes,
1179 .set_property = nouveau_connector_set_property,
1180 .destroy = nouveau_connector_destroy,
1181 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1182 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1183 .atomic_set_property = nouveau_conn_atomic_set_property,
1184 .atomic_get_property = nouveau_conn_atomic_get_property,
1185 .late_register = nouveau_connector_late_register,
1186 .early_unregister = nouveau_connector_early_unregister,
1187 };
1188
1189 void
nouveau_connector_hpd(struct nouveau_connector * nv_connector,u64 bits)1190 nouveau_connector_hpd(struct nouveau_connector *nv_connector, u64 bits)
1191 {
1192 struct nouveau_drm *drm = nouveau_drm(nv_connector->base.dev);
1193 u32 mask = drm_connector_mask(&nv_connector->base);
1194 unsigned long flags;
1195
1196 spin_lock_irqsave(&drm->hpd_lock, flags);
1197 if (!(drm->hpd_pending & mask)) {
1198 nv_connector->hpd_pending |= bits;
1199 drm->hpd_pending |= mask;
1200 schedule_work(&drm->hpd_work);
1201 }
1202 spin_unlock_irqrestore(&drm->hpd_lock, flags);
1203 }
1204
1205 static int
nouveau_connector_irq(struct nvif_event * event,void * repv,u32 repc)1206 nouveau_connector_irq(struct nvif_event *event, void *repv, u32 repc)
1207 {
1208 struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), irq);
1209
1210 schedule_work(&nv_connector->irq_work);
1211 return NVIF_EVENT_KEEP;
1212 }
1213
1214 static int
nouveau_connector_hotplug(struct nvif_event * event,void * repv,u32 repc)1215 nouveau_connector_hotplug(struct nvif_event *event, void *repv, u32 repc)
1216 {
1217 struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), hpd);
1218 struct nvif_conn_event_v0 *rep = repv;
1219
1220 nouveau_connector_hpd(nv_connector, rep->types);
1221 return NVIF_EVENT_KEEP;
1222 }
1223
1224 static ssize_t
nouveau_connector_aux_xfer(struct drm_dp_aux * obj,struct drm_dp_aux_msg * msg)1225 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1226 {
1227 struct nouveau_connector *nv_connector =
1228 container_of(obj, typeof(*nv_connector), aux);
1229 struct nouveau_encoder *nv_encoder;
1230 u8 size = msg->size;
1231 int ret;
1232
1233 nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1234 if (!nv_encoder)
1235 return -ENODEV;
1236 if (WARN_ON(msg->size > 16))
1237 return -E2BIG;
1238
1239 ret = nvif_outp_dp_aux_xfer(&nv_encoder->outp,
1240 msg->request, &size, msg->address, msg->buffer);
1241 if (ret >= 0) {
1242 msg->reply = ret;
1243 return size;
1244 }
1245
1246 return ret;
1247 }
1248
1249 static int
drm_conntype_from_dcb(enum dcb_connector_type dcb)1250 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1251 {
1252 switch (dcb) {
1253 case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA;
1254 case DCB_CONNECTOR_TV_0 :
1255 case DCB_CONNECTOR_TV_1 :
1256 case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV;
1257 case DCB_CONNECTOR_DMS59_0 :
1258 case DCB_CONNECTOR_DMS59_1 :
1259 case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII;
1260 case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID;
1261 case DCB_CONNECTOR_LVDS :
1262 case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1263 case DCB_CONNECTOR_DMS59_DP0:
1264 case DCB_CONNECTOR_DMS59_DP1:
1265 case DCB_CONNECTOR_DP :
1266 case DCB_CONNECTOR_mDP :
1267 case DCB_CONNECTOR_USB_C : return DRM_MODE_CONNECTOR_DisplayPort;
1268 case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP;
1269 case DCB_CONNECTOR_HDMI_0 :
1270 case DCB_CONNECTOR_HDMI_1 :
1271 case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA;
1272 case DCB_CONNECTOR_WFD : return DRM_MODE_CONNECTOR_VIRTUAL;
1273 default:
1274 break;
1275 }
1276
1277 return DRM_MODE_CONNECTOR_Unknown;
1278 }
1279
1280 struct drm_connector *
nouveau_connector_create(struct drm_device * dev,int index)1281 nouveau_connector_create(struct drm_device *dev, int index)
1282 {
1283 struct nouveau_drm *drm = nouveau_drm(dev);
1284 struct nouveau_display *disp = nouveau_display(dev);
1285 struct nouveau_connector *nv_connector = NULL;
1286 struct drm_connector *connector;
1287 struct drm_connector_list_iter conn_iter;
1288 int type, ret = 0;
1289 bool dummy;
1290
1291 drm_connector_list_iter_begin(dev, &conn_iter);
1292 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1293 nv_connector = nouveau_connector(connector);
1294 if (nv_connector->index == index) {
1295 drm_connector_list_iter_end(&conn_iter);
1296 return connector;
1297 }
1298 }
1299 drm_connector_list_iter_end(&conn_iter);
1300
1301 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1302 if (!nv_connector)
1303 return ERR_PTR(-ENOMEM);
1304
1305 connector = &nv_connector->base;
1306 nv_connector->index = index;
1307 INIT_WORK(&nv_connector->irq_work, nouveau_dp_irq);
1308
1309 if (disp->disp.conn_mask & BIT(nv_connector->index)) {
1310 ret = nvif_conn_ctor(&disp->disp, nv_connector->base.name, nv_connector->index,
1311 &nv_connector->conn);
1312 if (ret) {
1313 kfree(nv_connector);
1314 return ERR_PTR(ret);
1315 }
1316
1317 switch (nv_connector->conn.info.type) {
1318 case NVIF_CONN_VGA : type = DCB_CONNECTOR_VGA; break;
1319 case NVIF_CONN_DVI_I : type = DCB_CONNECTOR_DVI_I; break;
1320 case NVIF_CONN_DVI_D : type = DCB_CONNECTOR_DVI_D; break;
1321 case NVIF_CONN_LVDS : type = DCB_CONNECTOR_LVDS; break;
1322 case NVIF_CONN_LVDS_SPWG: type = DCB_CONNECTOR_LVDS_SPWG; break;
1323 case NVIF_CONN_DP : type = DCB_CONNECTOR_DP; break;
1324 case NVIF_CONN_EDP : type = DCB_CONNECTOR_eDP; break;
1325 case NVIF_CONN_HDMI : type = DCB_CONNECTOR_HDMI_0; break;
1326 default:
1327 WARN_ON(1);
1328 return NULL;
1329 }
1330
1331 nv_connector->type = type;
1332 } else {
1333 u8 *dcb = olddcb_conn(dev, nv_connector->index);
1334
1335 if (dcb)
1336 nv_connector->type = dcb[0];
1337 else
1338 nv_connector->type = DCB_CONNECTOR_NONE;
1339
1340 /* attempt to parse vbios connector type and hotplug gpio */
1341 if (nv_connector->type != DCB_CONNECTOR_NONE) {
1342 if (drm_conntype_from_dcb(nv_connector->type) ==
1343 DRM_MODE_CONNECTOR_Unknown) {
1344 NV_WARN(drm, "unknown connector type %02x\n",
1345 nv_connector->type);
1346 nv_connector->type = DCB_CONNECTOR_NONE;
1347 }
1348 }
1349
1350 /* no vbios data, or an unknown dcb connector type - attempt to
1351 * figure out something suitable ourselves
1352 */
1353 if (nv_connector->type == DCB_CONNECTOR_NONE &&
1354 !WARN_ON(drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)) {
1355 struct dcb_table *dcbt = &drm->vbios.dcb;
1356 u32 encoders = 0;
1357 int i;
1358
1359 for (i = 0; i < dcbt->entries; i++) {
1360 if (dcbt->entry[i].connector == nv_connector->index)
1361 encoders |= (1 << dcbt->entry[i].type);
1362 }
1363
1364 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1365 if (encoders & (1 << DCB_OUTPUT_ANALOG))
1366 nv_connector->type = DCB_CONNECTOR_DVI_I;
1367 else
1368 nv_connector->type = DCB_CONNECTOR_DVI_D;
1369 } else
1370 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1371 nv_connector->type = DCB_CONNECTOR_VGA;
1372 } else
1373 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1374 nv_connector->type = DCB_CONNECTOR_LVDS;
1375 } else
1376 if (encoders & (1 << DCB_OUTPUT_TV)) {
1377 nv_connector->type = DCB_CONNECTOR_TV_0;
1378 }
1379 }
1380 }
1381
1382 type = drm_conntype_from_dcb(nv_connector->type);
1383 if (type == DRM_MODE_CONNECTOR_LVDS)
1384 drm_connector_init(dev, connector, &nouveau_connector_funcs_lvds, type);
1385 else
1386 drm_connector_init(dev, connector, &nouveau_connector_funcs, type);
1387
1388 switch (type) {
1389 case DRM_MODE_CONNECTOR_LVDS:
1390 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1391 if (ret) {
1392 NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1393 kfree(nv_connector);
1394 return ERR_PTR(ret);
1395 }
1396
1397 break;
1398 case DRM_MODE_CONNECTOR_DisplayPort:
1399 case DRM_MODE_CONNECTOR_eDP:
1400 nv_connector->aux.dev = connector->kdev;
1401 nv_connector->aux.drm_dev = dev;
1402 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1403 nv_connector->aux.name = connector->name;
1404 drm_dp_aux_init(&nv_connector->aux);
1405 break;
1406 default:
1407 break;
1408 }
1409
1410 /* HDMI 3D support */
1411 if ((disp->disp.object.oclass >= G82_DISP)
1412 && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1413 || (type == DRM_MODE_CONNECTOR_eDP)
1414 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1415 connector->stereo_allowed = true;
1416
1417 /* defaults, will get overridden in detect() */
1418 connector->interlace_allowed = false;
1419 connector->doublescan_allowed = false;
1420
1421 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1422 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1423
1424 if (nvif_object_constructed(&nv_connector->conn.object)) {
1425 ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsHotplug",
1426 nouveau_connector_hotplug,
1427 NVIF_CONN_EVENT_V0_PLUG | NVIF_CONN_EVENT_V0_UNPLUG,
1428 &nv_connector->hpd);
1429 if (ret == 0)
1430 connector->polled = DRM_CONNECTOR_POLL_HPD;
1431
1432 if (nv_connector->aux.transfer) {
1433 ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsDpIrq",
1434 nouveau_connector_irq, NVIF_CONN_EVENT_V0_IRQ,
1435 &nv_connector->irq);
1436 if (ret) {
1437 nvif_event_dtor(&nv_connector->hpd);
1438 nvif_conn_dtor(&nv_connector->conn);
1439 goto drm_conn_err;
1440 }
1441 }
1442 }
1443
1444 connector->funcs->reset(connector);
1445 nouveau_conn_attach_properties(connector);
1446
1447 /* Default scaling mode */
1448 switch (nv_connector->type) {
1449 case DCB_CONNECTOR_LVDS:
1450 case DCB_CONNECTOR_LVDS_SPWG:
1451 case DCB_CONNECTOR_eDP:
1452 /* see note in nouveau_connector_set_property() */
1453 if (disp->disp.object.oclass < NV50_DISP) {
1454 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1455 break;
1456 }
1457 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1458 break;
1459 default:
1460 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1461 break;
1462 }
1463
1464 /* dithering properties */
1465 switch (nv_connector->type) {
1466 case DCB_CONNECTOR_TV_0:
1467 case DCB_CONNECTOR_TV_1:
1468 case DCB_CONNECTOR_TV_3:
1469 case DCB_CONNECTOR_VGA:
1470 break;
1471 default:
1472 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1473 break;
1474 }
1475
1476 switch (type) {
1477 case DRM_MODE_CONNECTOR_DisplayPort:
1478 nv_connector->dp_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1479 fallthrough;
1480 case DRM_MODE_CONNECTOR_eDP:
1481 drm_dp_cec_register_connector(&nv_connector->aux, connector);
1482 break;
1483 }
1484
1485 drm_connector_register(connector);
1486 return connector;
1487
1488 drm_conn_err:
1489 drm_connector_cleanup(connector);
1490 kfree(nv_connector);
1491 return ERR_PTR(ret);
1492 }
1493