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