1 /* $NetBSD: nouveau_connector.c,v 1.7 2021/12/19 10:49:21 riastradh Exp $ */
2
3 /*
4 * Copyright (C) 2008 Maarten Maathuis.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining
8 * a copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sublicense, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial
17 * portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
22 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: nouveau_connector.c,v 1.7 2021/12/19 10:49:21 riastradh Exp $");
31
32 #include <acpi/button.h>
33
34 #include <linux/pm_runtime.h>
35 #include <linux/vga_switcheroo.h>
36
37 #include <drm/drm_atomic_helper.h>
38 #include <drm/drm_edid.h>
39 #include <drm/drm_crtc_helper.h>
40 #include <drm/drm_probe_helper.h>
41 #include <drm/drm_atomic.h>
42
43 #include "nouveau_reg.h"
44 #include "nouveau_drv.h"
45 #include "dispnv04/hw.h"
46 #include "nouveau_acpi.h"
47
48 #include "nouveau_display.h"
49 #include "nouveau_connector.h"
50 #include "nouveau_encoder.h"
51 #include "nouveau_crtc.h"
52
53 #include <nvif/class.h>
54 #include <nvif/cl0046.h>
55 #include <nvif/event.h>
56
57 struct drm_display_mode *
nouveau_conn_native_mode(struct drm_connector * connector)58 nouveau_conn_native_mode(struct drm_connector *connector)
59 {
60 const struct drm_connector_helper_funcs *helper = connector->helper_private;
61 struct nouveau_drm *drm = nouveau_drm(connector->dev);
62 struct drm_device *dev = connector->dev;
63 struct drm_display_mode *mode, *largest = NULL;
64 int high_w = 0, high_h = 0, high_v = 0;
65
66 list_for_each_entry(mode, &connector->probed_modes, head) {
67 mode->vrefresh = drm_mode_vrefresh(mode);
68 if (helper->mode_valid(connector, mode) != MODE_OK ||
69 (mode->flags & DRM_MODE_FLAG_INTERLACE))
70 continue;
71
72 /* Use preferred mode if there is one.. */
73 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
74 NV_DEBUG(drm, "native mode from preferred\n");
75 return drm_mode_duplicate(dev, mode);
76 }
77
78 /* Otherwise, take the resolution with the largest width, then
79 * height, then vertical refresh
80 */
81 if (mode->hdisplay < high_w)
82 continue;
83
84 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
85 continue;
86
87 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
88 mode->vrefresh < high_v)
89 continue;
90
91 high_w = mode->hdisplay;
92 high_h = mode->vdisplay;
93 high_v = mode->vrefresh;
94 largest = mode;
95 }
96
97 NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
98 high_w, high_h, high_v);
99 return largest ? drm_mode_duplicate(dev, largest) : NULL;
100 }
101
102 int
nouveau_conn_atomic_get_property(struct drm_connector * connector,const struct drm_connector_state * state,struct drm_property * property,u64 * val)103 nouveau_conn_atomic_get_property(struct drm_connector *connector,
104 const struct drm_connector_state *state,
105 struct drm_property *property, u64 *val)
106 {
107 const struct nouveau_conn_atom *asyc = nouveau_conn_atom_const(state);
108 struct nouveau_display *disp = nouveau_display(connector->dev);
109 struct drm_device *dev = connector->dev;
110
111 if (property == dev->mode_config.scaling_mode_property)
112 *val = asyc->scaler.mode;
113 else if (property == disp->underscan_property)
114 *val = asyc->scaler.underscan.mode;
115 else if (property == disp->underscan_hborder_property)
116 *val = asyc->scaler.underscan.hborder;
117 else if (property == disp->underscan_vborder_property)
118 *val = asyc->scaler.underscan.vborder;
119 else if (property == disp->dithering_mode)
120 *val = asyc->dither.mode;
121 else if (property == disp->dithering_depth)
122 *val = asyc->dither.depth;
123 else if (property == disp->vibrant_hue_property)
124 *val = asyc->procamp.vibrant_hue;
125 else if (property == disp->color_vibrance_property)
126 *val = asyc->procamp.color_vibrance;
127 else
128 return -EINVAL;
129
130 return 0;
131 }
132
133 int
nouveau_conn_atomic_set_property(struct drm_connector * connector,struct drm_connector_state * state,struct drm_property * property,u64 val)134 nouveau_conn_atomic_set_property(struct drm_connector *connector,
135 struct drm_connector_state *state,
136 struct drm_property *property, u64 val)
137 {
138 struct drm_device *dev = connector->dev;
139 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
140 struct nouveau_display *disp = nouveau_display(dev);
141
142 if (property == dev->mode_config.scaling_mode_property) {
143 switch (val) {
144 case DRM_MODE_SCALE_NONE:
145 /* We allow 'None' for EDID modes, even on a fixed
146 * panel (some exist with support for lower refresh
147 * rates, which people might want to use for power-
148 * saving purposes).
149 *
150 * Non-EDID modes will force the use of GPU scaling
151 * to the native mode regardless of this setting.
152 */
153 switch (connector->connector_type) {
154 case DRM_MODE_CONNECTOR_LVDS:
155 case DRM_MODE_CONNECTOR_eDP:
156 /* ... except prior to G80, where the code
157 * doesn't support such things.
158 */
159 if (disp->disp.object.oclass < NV50_DISP)
160 return -EINVAL;
161 break;
162 default:
163 break;
164 }
165 case DRM_MODE_SCALE_FULLSCREEN:
166 case DRM_MODE_SCALE_CENTER:
167 case DRM_MODE_SCALE_ASPECT:
168 break;
169 default:
170 return -EINVAL;
171 }
172
173 if (asyc->scaler.mode != val) {
174 asyc->scaler.mode = val;
175 asyc->set.scaler = true;
176 }
177 } else
178 if (property == disp->underscan_property) {
179 if (asyc->scaler.underscan.mode != val) {
180 asyc->scaler.underscan.mode = val;
181 asyc->set.scaler = true;
182 }
183 } else
184 if (property == disp->underscan_hborder_property) {
185 if (asyc->scaler.underscan.hborder != val) {
186 asyc->scaler.underscan.hborder = val;
187 asyc->set.scaler = true;
188 }
189 } else
190 if (property == disp->underscan_vborder_property) {
191 if (asyc->scaler.underscan.vborder != val) {
192 asyc->scaler.underscan.vborder = val;
193 asyc->set.scaler = true;
194 }
195 } else
196 if (property == disp->dithering_mode) {
197 if (asyc->dither.mode != val) {
198 asyc->dither.mode = val;
199 asyc->set.dither = true;
200 }
201 } else
202 if (property == disp->dithering_depth) {
203 if (asyc->dither.mode != val) {
204 asyc->dither.depth = val;
205 asyc->set.dither = true;
206 }
207 } else
208 if (property == disp->vibrant_hue_property) {
209 if (asyc->procamp.vibrant_hue != val) {
210 asyc->procamp.vibrant_hue = val;
211 asyc->set.procamp = true;
212 }
213 } else
214 if (property == disp->color_vibrance_property) {
215 if (asyc->procamp.color_vibrance != val) {
216 asyc->procamp.color_vibrance = val;
217 asyc->set.procamp = true;
218 }
219 } else {
220 return -EINVAL;
221 }
222
223 return 0;
224 }
225
226 void
nouveau_conn_atomic_destroy_state(struct drm_connector * connector,struct drm_connector_state * state)227 nouveau_conn_atomic_destroy_state(struct drm_connector *connector,
228 struct drm_connector_state *state)
229 {
230 struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
231 __drm_atomic_helper_connector_destroy_state(&asyc->state);
232 kfree(asyc);
233 }
234
235 struct drm_connector_state *
nouveau_conn_atomic_duplicate_state(struct drm_connector * connector)236 nouveau_conn_atomic_duplicate_state(struct drm_connector *connector)
237 {
238 struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
239 struct nouveau_conn_atom *asyc;
240 if (!(asyc = kmalloc(sizeof(*asyc), GFP_KERNEL)))
241 return NULL;
242 __drm_atomic_helper_connector_duplicate_state(connector, &asyc->state);
243 asyc->dither = armc->dither;
244 asyc->scaler = armc->scaler;
245 asyc->procamp = armc->procamp;
246 asyc->set.mask = 0;
247 return &asyc->state;
248 }
249
250 void
nouveau_conn_reset(struct drm_connector * connector)251 nouveau_conn_reset(struct drm_connector *connector)
252 {
253 struct nouveau_connector *nv_connector = nouveau_connector(connector);
254 struct nouveau_conn_atom *asyc;
255
256 if (drm_drv_uses_atomic_modeset(connector->dev)) {
257 if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL))))
258 return;
259
260 if (connector->state)
261 nouveau_conn_atomic_destroy_state(connector,
262 connector->state);
263
264 __drm_atomic_helper_connector_reset(connector, &asyc->state);
265 } else {
266 asyc = &nv_connector->properties_state;
267 }
268
269 asyc->dither.mode = DITHERING_MODE_AUTO;
270 asyc->dither.depth = DITHERING_DEPTH_AUTO;
271 asyc->scaler.mode = DRM_MODE_SCALE_NONE;
272 asyc->scaler.underscan.mode = UNDERSCAN_OFF;
273 asyc->procamp.color_vibrance = 150;
274 asyc->procamp.vibrant_hue = 90;
275
276 if (nouveau_display(connector->dev)->disp.object.oclass < NV50_DISP) {
277 switch (connector->connector_type) {
278 case DRM_MODE_CONNECTOR_LVDS:
279 /* See note in nouveau_conn_atomic_set_property(). */
280 asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN;
281 break;
282 default:
283 break;
284 }
285 }
286 }
287
288 void
nouveau_conn_attach_properties(struct drm_connector * connector)289 nouveau_conn_attach_properties(struct drm_connector *connector)
290 {
291 struct drm_device *dev = connector->dev;
292 struct nouveau_display *disp = nouveau_display(dev);
293 struct nouveau_connector *nv_connector = nouveau_connector(connector);
294 struct nouveau_conn_atom *armc;
295
296 if (drm_drv_uses_atomic_modeset(connector->dev))
297 armc = nouveau_conn_atom(connector->state);
298 else
299 armc = &nv_connector->properties_state;
300
301 /* Init DVI-I specific properties. */
302 if (connector->connector_type == DRM_MODE_CONNECTOR_DVII)
303 drm_object_attach_property(&connector->base, dev->mode_config.
304 dvi_i_subconnector_property, 0);
305
306 /* Add overscan compensation options to digital outputs. */
307 if (disp->underscan_property &&
308 (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
309 connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
310 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
311 connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) {
312 drm_object_attach_property(&connector->base,
313 disp->underscan_property,
314 UNDERSCAN_OFF);
315 drm_object_attach_property(&connector->base,
316 disp->underscan_hborder_property, 0);
317 drm_object_attach_property(&connector->base,
318 disp->underscan_vborder_property, 0);
319 }
320
321 /* Add hue and saturation options. */
322 if (disp->vibrant_hue_property)
323 drm_object_attach_property(&connector->base,
324 disp->vibrant_hue_property,
325 armc->procamp.vibrant_hue);
326 if (disp->color_vibrance_property)
327 drm_object_attach_property(&connector->base,
328 disp->color_vibrance_property,
329 armc->procamp.color_vibrance);
330
331 /* Scaling mode property. */
332 switch (connector->connector_type) {
333 case DRM_MODE_CONNECTOR_TV:
334 break;
335 case DRM_MODE_CONNECTOR_VGA:
336 if (disp->disp.object.oclass < NV50_DISP)
337 break; /* Can only scale on DFPs. */
338 /* Fall-through. */
339 default:
340 drm_object_attach_property(&connector->base, dev->mode_config.
341 scaling_mode_property,
342 armc->scaler.mode);
343 break;
344 }
345
346 /* Dithering properties. */
347 switch (connector->connector_type) {
348 case DRM_MODE_CONNECTOR_TV:
349 case DRM_MODE_CONNECTOR_VGA:
350 break;
351 default:
352 if (disp->dithering_mode) {
353 drm_object_attach_property(&connector->base,
354 disp->dithering_mode,
355 armc->dither.mode);
356 }
357 if (disp->dithering_depth) {
358 drm_object_attach_property(&connector->base,
359 disp->dithering_depth,
360 armc->dither.depth);
361 }
362 break;
363 }
364 }
365
366 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
367 int nouveau_tv_disable = 0;
368 module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
369
370 #if defined(CONFIG_ACPI_BUTTON) || \
371 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
372 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
373 int nouveau_ignorelid = 0;
374 module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
375 #endif
376
377 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
378 int nouveau_duallink = 1;
379 module_param_named(duallink, nouveau_duallink, int, 0400);
380
381 MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
382 int nouveau_hdmimhz = 0;
383 module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400);
384
385 struct nouveau_encoder *
find_encoder(struct drm_connector * connector,int type)386 find_encoder(struct drm_connector *connector, int type)
387 {
388 struct nouveau_encoder *nv_encoder;
389 struct drm_encoder *enc;
390
391 drm_connector_for_each_possible_encoder(connector, enc) {
392 nv_encoder = nouveau_encoder(enc);
393
394 if (type == DCB_OUTPUT_ANY ||
395 (nv_encoder->dcb && nv_encoder->dcb->type == type))
396 return nv_encoder;
397 }
398
399 return NULL;
400 }
401
402 struct nouveau_connector *
nouveau_encoder_connector_get(struct nouveau_encoder * encoder)403 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
404 {
405 struct drm_device *dev = to_drm_encoder(encoder)->dev;
406 struct drm_connector *drm_connector;
407
408 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
409 if (drm_connector->encoder == to_drm_encoder(encoder))
410 return nouveau_connector(drm_connector);
411 }
412
413 return NULL;
414 }
415
416 static void
nouveau_connector_destroy(struct drm_connector * connector)417 nouveau_connector_destroy(struct drm_connector *connector)
418 {
419 struct nouveau_connector *nv_connector = nouveau_connector(connector);
420 nvif_notify_fini(&nv_connector->hpd);
421 kfree(nv_connector->edid);
422 drm_connector_unregister(connector);
423 drm_connector_cleanup(connector);
424 if (nv_connector->aux.transfer) {
425 drm_dp_cec_unregister_connector(&nv_connector->aux);
426 drm_dp_aux_unregister(&nv_connector->aux);
427 kfree(__UNCONST(nv_connector->aux.name));
428 }
429 kfree(connector);
430 }
431
432 static struct nouveau_encoder *
nouveau_connector_ddc_detect(struct drm_connector * connector)433 nouveau_connector_ddc_detect(struct drm_connector *connector)
434 {
435 struct drm_device *dev = connector->dev;
436 struct nouveau_encoder *nv_encoder = NULL, *found = NULL;
437 struct drm_encoder *encoder;
438 int ret;
439 bool switcheroo_ddc = false;
440
441 drm_connector_for_each_possible_encoder(connector, encoder) {
442 nv_encoder = nouveau_encoder(encoder);
443
444 switch (nv_encoder->dcb->type) {
445 case DCB_OUTPUT_DP:
446 ret = nouveau_dp_detect(nv_encoder);
447 if (ret == NOUVEAU_DP_MST)
448 return NULL;
449 else if (ret == NOUVEAU_DP_SST)
450 found = nv_encoder;
451
452 break;
453 case DCB_OUTPUT_LVDS:
454 switcheroo_ddc = !!(vga_switcheroo_handler_flags() &
455 VGA_SWITCHEROO_CAN_SWITCH_DDC);
456 /* fall-through */
457 default:
458 if (!nv_encoder->i2c)
459 break;
460
461 #ifdef __NetBSD__
462 __USE(switcheroo_ddc);
463 __USE(dev);
464 #else
465 if (switcheroo_ddc)
466 vga_switcheroo_lock_ddc(dev->pdev);
467 #endif
468 if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
469 found = nv_encoder;
470 #ifndef __NetBSD__
471 if (switcheroo_ddc)
472 vga_switcheroo_unlock_ddc(dev->pdev);
473 #endif
474
475 break;
476 }
477 if (found)
478 break;
479 }
480
481 return found;
482 }
483
484 static struct nouveau_encoder *
nouveau_connector_of_detect(struct drm_connector * connector)485 nouveau_connector_of_detect(struct drm_connector *connector)
486 {
487 #ifdef __powerpc__
488 struct drm_device *dev = connector->dev;
489 struct nouveau_connector *nv_connector = nouveau_connector(connector);
490 struct nouveau_encoder *nv_encoder;
491 struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
492
493 if (!dn ||
494 !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
495 (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
496 return NULL;
497
498 for_each_child_of_node(dn, cn) {
499 const char *name = of_get_property(cn, "name", NULL);
500 const void *edid = of_get_property(cn, "EDID", NULL);
501 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
502
503 if (nv_encoder->dcb->i2c_index == idx && edid) {
504 nv_connector->edid =
505 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
506 of_node_put(cn);
507 return nv_encoder;
508 }
509 }
510 #endif
511 return NULL;
512 }
513
514 static void
nouveau_connector_set_encoder(struct drm_connector * connector,struct nouveau_encoder * nv_encoder)515 nouveau_connector_set_encoder(struct drm_connector *connector,
516 struct nouveau_encoder *nv_encoder)
517 {
518 struct nouveau_connector *nv_connector = nouveau_connector(connector);
519 struct nouveau_drm *drm = nouveau_drm(connector->dev);
520 struct drm_device *dev = connector->dev;
521
522 if (nv_connector->detected_encoder == nv_encoder)
523 return;
524 nv_connector->detected_encoder = nv_encoder;
525
526 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
527 connector->interlace_allowed = true;
528 connector->doublescan_allowed = true;
529 } else
530 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
531 nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
532 connector->doublescan_allowed = false;
533 connector->interlace_allowed = false;
534 } else {
535 connector->doublescan_allowed = true;
536 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
537 (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
538 (dev->pdev->device & 0x0ff0) != 0x0100 &&
539 (dev->pdev->device & 0x0ff0) != 0x0150))
540 /* HW is broken */
541 connector->interlace_allowed = false;
542 else
543 connector->interlace_allowed = true;
544 }
545
546 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
547 drm_object_property_set_value(&connector->base,
548 dev->mode_config.dvi_i_subconnector_property,
549 nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
550 DRM_MODE_SUBCONNECTOR_DVID :
551 DRM_MODE_SUBCONNECTOR_DVIA);
552 }
553 }
554
555 static enum drm_connector_status
nouveau_connector_detect(struct drm_connector * connector,bool force)556 nouveau_connector_detect(struct drm_connector *connector, bool force)
557 {
558 struct drm_device *dev = connector->dev;
559 struct nouveau_drm *drm = nouveau_drm(dev);
560 struct nouveau_connector *nv_connector = nouveau_connector(connector);
561 struct nouveau_encoder *nv_encoder = NULL;
562 struct nouveau_encoder *nv_partner;
563 struct i2c_adapter *i2c;
564 int type;
565 int ret;
566 enum drm_connector_status conn_status = connector_status_disconnected;
567
568 /* Cleanup the previous EDID block. */
569 if (nv_connector->edid) {
570 drm_connector_update_edid_property(connector, NULL);
571 kfree(nv_connector->edid);
572 nv_connector->edid = NULL;
573 }
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 return conn_status;
587 }
588
589 nv_encoder = nouveau_connector_ddc_detect(connector);
590 if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
591 if ((vga_switcheroo_handler_flags() &
592 VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
593 nv_connector->type == DCB_CONNECTOR_LVDS)
594 nv_connector->edid = drm_get_edid_switcheroo(connector,
595 i2c);
596 else
597 nv_connector->edid = drm_get_edid(connector, i2c);
598
599 drm_connector_update_edid_property(connector,
600 nv_connector->edid);
601 if (!nv_connector->edid) {
602 NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
603 connector->name);
604 goto detect_analog;
605 }
606
607 /* Override encoder type for DVI-I based on whether EDID
608 * says the display is digital or analog, both use the
609 * same i2c channel so the value returned from ddc_detect
610 * isn't necessarily correct.
611 */
612 nv_partner = NULL;
613 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
614 nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
615 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
616 nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
617
618 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
619 nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
620 (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
621 nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
622 if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
623 type = DCB_OUTPUT_TMDS;
624 else
625 type = DCB_OUTPUT_ANALOG;
626
627 nv_encoder = find_encoder(connector, type);
628 BUG_ON(nv_encoder == NULL);
629 }
630
631 nouveau_connector_set_encoder(connector, nv_encoder);
632 conn_status = connector_status_connected;
633 drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid);
634 goto out;
635 }
636
637 nv_encoder = nouveau_connector_of_detect(connector);
638 if (nv_encoder) {
639 nouveau_connector_set_encoder(connector, nv_encoder);
640 conn_status = connector_status_connected;
641 goto out;
642 }
643
644 detect_analog:
645 nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
646 if (!nv_encoder && !nouveau_tv_disable)
647 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
648 if (nv_encoder && force) {
649 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
650 const struct drm_encoder_helper_funcs *helper =
651 encoder->helper_private;
652
653 if (helper->detect(encoder, connector) ==
654 connector_status_connected) {
655 nouveau_connector_set_encoder(connector, nv_encoder);
656 conn_status = connector_status_connected;
657 goto out;
658 }
659
660 }
661
662 out:
663
664 pm_runtime_mark_last_busy(dev->dev);
665 pm_runtime_put_autosuspend(dev->dev);
666
667 return conn_status;
668 }
669
670 static enum drm_connector_status
nouveau_connector_detect_lvds(struct drm_connector * connector,bool force)671 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
672 {
673 struct drm_device *dev = connector->dev;
674 struct nouveau_drm *drm = nouveau_drm(dev);
675 struct nouveau_connector *nv_connector = nouveau_connector(connector);
676 struct nouveau_encoder *nv_encoder = NULL;
677 enum drm_connector_status status = connector_status_disconnected;
678
679 /* Cleanup the previous EDID block. */
680 if (nv_connector->edid) {
681 drm_connector_update_edid_property(connector, NULL);
682 kfree(nv_connector->edid);
683 nv_connector->edid = NULL;
684 }
685
686 nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
687 if (!nv_encoder)
688 return connector_status_disconnected;
689
690 /* Try retrieving EDID via DDC */
691 if (!drm->vbios.fp_no_ddc) {
692 status = nouveau_connector_detect(connector, force);
693 if (status == connector_status_connected)
694 goto out;
695 }
696
697 /* On some laptops (Sony, i'm looking at you) there appears to
698 * be no direct way of accessing the panel's EDID. The only
699 * option available to us appears to be to ask ACPI for help..
700 *
701 * It's important this check's before trying straps, one of the
702 * said manufacturer's laptops are configured in such a way
703 * the nouveau decides an entry in the VBIOS FP mode table is
704 * valid - it's not (rh#613284)
705 */
706 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
707 if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
708 status = connector_status_connected;
709 goto out;
710 }
711 }
712
713 /* If no EDID found above, and the VBIOS indicates a hardcoded
714 * modeline is avalilable for the panel, set it as the panel's
715 * native mode and exit.
716 */
717 if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
718 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
719 status = connector_status_connected;
720 goto out;
721 }
722
723 /* Still nothing, some VBIOS images have a hardcoded EDID block
724 * stored for the panel stored in them.
725 */
726 if (!drm->vbios.fp_no_ddc) {
727 struct edid *edid =
728 (struct edid *)nouveau_bios_embedded_edid(dev);
729 if (edid) {
730 nv_connector->edid =
731 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
732 if (nv_connector->edid)
733 status = connector_status_connected;
734 }
735 }
736
737 out:
738 #if defined(CONFIG_ACPI_BUTTON) || \
739 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
740 if (status == connector_status_connected &&
741 !nouveau_ignorelid && !acpi_lid_open())
742 status = connector_status_unknown;
743 #endif
744
745 drm_connector_update_edid_property(connector, nv_connector->edid);
746 nouveau_connector_set_encoder(connector, nv_encoder);
747 return status;
748 }
749
750 static void
nouveau_connector_force(struct drm_connector * connector)751 nouveau_connector_force(struct drm_connector *connector)
752 {
753 struct nouveau_drm *drm = nouveau_drm(connector->dev);
754 struct nouveau_connector *nv_connector = nouveau_connector(connector);
755 struct nouveau_encoder *nv_encoder;
756 int type;
757
758 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
759 if (connector->force == DRM_FORCE_ON_DIGITAL)
760 type = DCB_OUTPUT_TMDS;
761 else
762 type = DCB_OUTPUT_ANALOG;
763 } else
764 type = DCB_OUTPUT_ANY;
765
766 nv_encoder = find_encoder(connector, type);
767 if (!nv_encoder) {
768 NV_ERROR(drm, "can't find encoder to force %s on!\n",
769 connector->name);
770 connector->status = connector_status_disconnected;
771 return;
772 }
773
774 nouveau_connector_set_encoder(connector, nv_encoder);
775 }
776
777 static int
nouveau_connector_set_property(struct drm_connector * connector,struct drm_property * property,uint64_t value)778 nouveau_connector_set_property(struct drm_connector *connector,
779 struct drm_property *property, uint64_t value)
780 {
781 struct nouveau_connector *nv_connector = nouveau_connector(connector);
782 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
783 struct nouveau_conn_atom *asyc = &nv_connector->properties_state;
784 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
785 int ret;
786
787 ret = connector->funcs->atomic_set_property(&nv_connector->base,
788 &asyc->state,
789 property, value);
790 if (ret) {
791 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
792 return get_slave_funcs(encoder)->set_property(
793 encoder, connector, property, value);
794 return ret;
795 }
796
797 nv_connector->scaling_mode = asyc->scaler.mode;
798 nv_connector->dithering_mode = asyc->dither.mode;
799
800 if (connector->encoder && connector->encoder->crtc) {
801 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
802 &connector->encoder->crtc->mode,
803 connector->encoder->crtc->x,
804 connector->encoder->crtc->y,
805 NULL);
806 if (!ret)
807 return -EINVAL;
808 }
809
810 return 0;
811 }
812
813 struct moderec {
814 int hdisplay;
815 int vdisplay;
816 };
817
818 static struct moderec scaler_modes[] = {
819 { 1920, 1200 },
820 { 1920, 1080 },
821 { 1680, 1050 },
822 { 1600, 1200 },
823 { 1400, 1050 },
824 { 1280, 1024 },
825 { 1280, 960 },
826 { 1152, 864 },
827 { 1024, 768 },
828 { 800, 600 },
829 { 720, 400 },
830 { 640, 480 },
831 { 640, 400 },
832 { 640, 350 },
833 {}
834 };
835
836 static int
nouveau_connector_scaler_modes_add(struct drm_connector * connector)837 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
838 {
839 struct nouveau_connector *nv_connector = nouveau_connector(connector);
840 struct drm_display_mode *native = nv_connector->native_mode, *m;
841 struct drm_device *dev = connector->dev;
842 struct moderec *mode = &scaler_modes[0];
843 int modes = 0;
844
845 if (!native)
846 return 0;
847
848 while (mode->hdisplay) {
849 if (mode->hdisplay <= native->hdisplay &&
850 mode->vdisplay <= native->vdisplay &&
851 (mode->hdisplay != native->hdisplay ||
852 mode->vdisplay != native->vdisplay)) {
853 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
854 drm_mode_vrefresh(native), false,
855 false, false);
856 if (!m)
857 continue;
858
859 drm_mode_probed_add(connector, m);
860 modes++;
861 }
862
863 mode++;
864 }
865
866 return modes;
867 }
868
869 static void
nouveau_connector_detect_depth(struct drm_connector * connector)870 nouveau_connector_detect_depth(struct drm_connector *connector)
871 {
872 struct nouveau_drm *drm = nouveau_drm(connector->dev);
873 struct nouveau_connector *nv_connector = nouveau_connector(connector);
874 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
875 struct nvbios *bios = &drm->vbios;
876 struct drm_display_mode *mode = nv_connector->native_mode;
877 bool duallink;
878
879 /* if the edid is feeling nice enough to provide this info, use it */
880 if (nv_connector->edid && connector->display_info.bpc)
881 return;
882
883 /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
884 if (nv_connector->type == DCB_CONNECTOR_eDP) {
885 connector->display_info.bpc = 6;
886 return;
887 }
888
889 /* we're out of options unless we're LVDS, default to 8bpc */
890 if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
891 connector->display_info.bpc = 8;
892 return;
893 }
894
895 connector->display_info.bpc = 6;
896
897 /* LVDS: panel straps */
898 if (bios->fp_no_ddc) {
899 if (bios->fp.if_is_24bit)
900 connector->display_info.bpc = 8;
901 return;
902 }
903
904 /* LVDS: DDC panel, need to first determine the number of links to
905 * know which if_is_24bit flag to check...
906 */
907 if (nv_connector->edid &&
908 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
909 duallink = ((u8 *)nv_connector->edid)[121] == 2;
910 else
911 duallink = mode->clock >= bios->fp.duallink_transition_clk;
912
913 if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
914 ( duallink && (bios->fp.strapless_is_24bit & 2)))
915 connector->display_info.bpc = 8;
916 }
917
918 static int
nouveau_connector_late_register(struct drm_connector * connector)919 nouveau_connector_late_register(struct drm_connector *connector)
920 {
921 int ret;
922
923 ret = nouveau_backlight_init(connector);
924
925 return ret;
926 }
927
928 static void
nouveau_connector_early_unregister(struct drm_connector * connector)929 nouveau_connector_early_unregister(struct drm_connector *connector)
930 {
931 nouveau_backlight_fini(connector);
932 }
933
934 static int
nouveau_connector_get_modes(struct drm_connector * connector)935 nouveau_connector_get_modes(struct drm_connector *connector)
936 {
937 struct drm_device *dev = connector->dev;
938 struct nouveau_drm *drm = nouveau_drm(dev);
939 struct nouveau_connector *nv_connector = nouveau_connector(connector);
940 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
941 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
942 int ret = 0;
943
944 /* destroy the native mode, the attached monitor could have changed.
945 */
946 if (nv_connector->native_mode) {
947 drm_mode_destroy(dev, nv_connector->native_mode);
948 nv_connector->native_mode = NULL;
949 }
950
951 if (nv_connector->edid)
952 ret = drm_add_edid_modes(connector, nv_connector->edid);
953 else
954 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
955 (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
956 drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
957 struct drm_display_mode mode;
958
959 nouveau_bios_fp_mode(dev, &mode);
960 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
961 }
962
963 /* Determine display colour depth for everything except LVDS now,
964 * DP requires this before mode_valid() is called.
965 */
966 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
967 nouveau_connector_detect_depth(connector);
968
969 /* Find the native mode if this is a digital panel, if we didn't
970 * find any modes through DDC previously add the native mode to
971 * the list of modes.
972 */
973 if (!nv_connector->native_mode)
974 nv_connector->native_mode = nouveau_conn_native_mode(connector);
975 if (ret == 0 && nv_connector->native_mode) {
976 struct drm_display_mode *mode;
977
978 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
979 drm_mode_probed_add(connector, mode);
980 ret = 1;
981 }
982
983 /* Determine LVDS colour depth, must happen after determining
984 * "native" mode as some VBIOS tables require us to use the
985 * pixel clock as part of the lookup...
986 */
987 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
988 nouveau_connector_detect_depth(connector);
989
990 if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
991 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
992
993 if (nv_connector->type == DCB_CONNECTOR_LVDS ||
994 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
995 nv_connector->type == DCB_CONNECTOR_eDP)
996 ret += nouveau_connector_scaler_modes_add(connector);
997
998 return ret;
999 }
1000
1001 static unsigned
get_tmds_link_bandwidth(struct drm_connector * connector)1002 get_tmds_link_bandwidth(struct drm_connector *connector)
1003 {
1004 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1005 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1006 struct nouveau_drm *drm = nouveau_drm(connector->dev);
1007 struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
1008 struct drm_display_info *info = NULL;
1009 unsigned duallink_scale =
1010 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1;
1011
1012 if (drm_detect_hdmi_monitor(nv_connector->edid)) {
1013 info = &nv_connector->base.display_info;
1014 duallink_scale = 1;
1015 }
1016
1017 if (info) {
1018 if (nouveau_hdmimhz > 0)
1019 return nouveau_hdmimhz * 1000;
1020 /* Note: these limits are conservative, some Fermi's
1021 * can do 297 MHz. Unclear how this can be determined.
1022 */
1023 if (drm->client.device.info.chipset >= 0x120) {
1024 const int max_tmds_clock =
1025 info->hdmi.scdc.scrambling.supported ?
1026 594000 : 340000;
1027 return info->max_tmds_clock ?
1028 min(info->max_tmds_clock, max_tmds_clock) :
1029 max_tmds_clock;
1030 }
1031 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
1032 return 297000;
1033 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
1034 return 225000;
1035 }
1036
1037 if (dcb->location != DCB_LOC_ON_CHIP ||
1038 drm->client.device.info.chipset >= 0x46)
1039 return 165000 * duallink_scale;
1040 else if (drm->client.device.info.chipset >= 0x40)
1041 return 155000 * duallink_scale;
1042 else if (drm->client.device.info.chipset >= 0x18)
1043 return 135000 * duallink_scale;
1044 else
1045 return 112000 * duallink_scale;
1046 }
1047
1048 static enum drm_mode_status
nouveau_connector_mode_valid(struct drm_connector * connector,struct drm_display_mode * mode)1049 nouveau_connector_mode_valid(struct drm_connector *connector,
1050 struct drm_display_mode *mode)
1051 {
1052 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1053 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1054 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1055 unsigned min_clock = 25000, max_clock = min_clock;
1056 unsigned clock = mode->clock;
1057
1058 switch (nv_encoder->dcb->type) {
1059 case DCB_OUTPUT_LVDS:
1060 if (nv_connector->native_mode &&
1061 (mode->hdisplay > nv_connector->native_mode->hdisplay ||
1062 mode->vdisplay > nv_connector->native_mode->vdisplay))
1063 return MODE_PANEL;
1064
1065 min_clock = 0;
1066 max_clock = 400000;
1067 break;
1068 case DCB_OUTPUT_TMDS:
1069 max_clock = get_tmds_link_bandwidth(connector);
1070 break;
1071 case DCB_OUTPUT_ANALOG:
1072 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1073 if (!max_clock)
1074 max_clock = 350000;
1075 break;
1076 case DCB_OUTPUT_TV:
1077 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1078 case DCB_OUTPUT_DP:
1079 max_clock = nv_encoder->dp.link_nr;
1080 max_clock *= nv_encoder->dp.link_bw;
1081 clock = clock * (connector->display_info.bpc * 3) / 10;
1082 break;
1083 default:
1084 BUG();
1085 return MODE_BAD;
1086 }
1087
1088 if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1089 clock *= 2;
1090
1091 if (clock < min_clock)
1092 return MODE_CLOCK_LOW;
1093
1094 if (clock > max_clock)
1095 return MODE_CLOCK_HIGH;
1096
1097 return MODE_OK;
1098 }
1099
1100 static struct drm_encoder *
nouveau_connector_best_encoder(struct drm_connector * connector)1101 nouveau_connector_best_encoder(struct drm_connector *connector)
1102 {
1103 struct nouveau_connector *nv_connector = nouveau_connector(connector);
1104
1105 if (nv_connector->detected_encoder)
1106 return to_drm_encoder(nv_connector->detected_encoder);
1107
1108 return NULL;
1109 }
1110
1111 static const struct drm_connector_helper_funcs
1112 nouveau_connector_helper_funcs = {
1113 .get_modes = nouveau_connector_get_modes,
1114 .mode_valid = nouveau_connector_mode_valid,
1115 .best_encoder = nouveau_connector_best_encoder,
1116 };
1117
1118 static const struct drm_connector_funcs
1119 nouveau_connector_funcs = {
1120 .dpms = drm_helper_connector_dpms,
1121 .reset = nouveau_conn_reset,
1122 .detect = nouveau_connector_detect,
1123 .force = nouveau_connector_force,
1124 .fill_modes = drm_helper_probe_single_connector_modes,
1125 .set_property = nouveau_connector_set_property,
1126 .destroy = nouveau_connector_destroy,
1127 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1128 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1129 .atomic_set_property = nouveau_conn_atomic_set_property,
1130 .atomic_get_property = nouveau_conn_atomic_get_property,
1131 .late_register = nouveau_connector_late_register,
1132 .early_unregister = nouveau_connector_early_unregister,
1133 };
1134
1135 static const struct drm_connector_funcs
1136 nouveau_connector_funcs_lvds = {
1137 .dpms = drm_helper_connector_dpms,
1138 .reset = nouveau_conn_reset,
1139 .detect = nouveau_connector_detect_lvds,
1140 .force = nouveau_connector_force,
1141 .fill_modes = drm_helper_probe_single_connector_modes,
1142 .set_property = nouveau_connector_set_property,
1143 .destroy = nouveau_connector_destroy,
1144 .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1145 .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1146 .atomic_set_property = nouveau_conn_atomic_set_property,
1147 .atomic_get_property = nouveau_conn_atomic_get_property,
1148 .late_register = nouveau_connector_late_register,
1149 .early_unregister = nouveau_connector_early_unregister,
1150 };
1151
1152 static int
nouveau_connector_hotplug(struct nvif_notify * notify)1153 nouveau_connector_hotplug(struct nvif_notify *notify)
1154 {
1155 struct nouveau_connector *nv_connector =
1156 container_of(notify, typeof(*nv_connector), hpd);
1157 struct drm_connector *connector = &nv_connector->base;
1158 struct nouveau_drm *drm = nouveau_drm(connector->dev);
1159 const struct nvif_notify_conn_rep_v0 *rep = notify->data;
1160 const char *name = connector->name;
1161 struct nouveau_encoder *nv_encoder;
1162 int ret;
1163 bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1164
1165 if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1166 NV_DEBUG(drm, "service %s\n", name);
1167 drm_dp_cec_irq(&nv_connector->aux);
1168 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP)))
1169 nv50_mstm_service(nv_encoder->dp.mstm);
1170
1171 return NVIF_NOTIFY_KEEP;
1172 }
1173
1174 ret = pm_runtime_get(drm->dev->dev);
1175 if (ret == 0) {
1176 /* We can't block here if there's a pending PM request
1177 * running, as we'll deadlock nouveau_display_fini() when it
1178 * calls nvif_put() on our nvif_notify struct. So, simply
1179 * defer the hotplug event until the device finishes resuming
1180 */
1181 NV_DEBUG(drm, "Deferring HPD on %s until runtime resume\n",
1182 name);
1183 schedule_work(&drm->hpd_work);
1184
1185 pm_runtime_put_noidle(drm->dev->dev);
1186 return NVIF_NOTIFY_KEEP;
1187 } else if (ret != 1 && ret != -EACCES) {
1188 NV_WARN(drm, "HPD on %s dropped due to RPM failure: %d\n",
1189 name, ret);
1190 return NVIF_NOTIFY_DROP;
1191 }
1192
1193 if (!plugged)
1194 drm_dp_cec_unset_edid(&nv_connector->aux);
1195 NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
1196 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) {
1197 if (!plugged)
1198 nv50_mstm_remove(nv_encoder->dp.mstm);
1199 }
1200
1201 drm_helper_hpd_irq_event(connector->dev);
1202
1203 pm_runtime_mark_last_busy(drm->dev->dev);
1204 pm_runtime_put_autosuspend(drm->dev->dev);
1205 return NVIF_NOTIFY_KEEP;
1206 }
1207
1208 static ssize_t
nouveau_connector_aux_xfer(struct drm_dp_aux * obj,struct drm_dp_aux_msg * msg)1209 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1210 {
1211 struct nouveau_connector *nv_connector =
1212 container_of(obj, typeof(*nv_connector), aux);
1213 struct nouveau_encoder *nv_encoder;
1214 struct nvkm_i2c_aux *aux;
1215 u8 size = msg->size;
1216 int ret;
1217
1218 nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1219 if (!nv_encoder || !(aux = nv_encoder->aux))
1220 return -ENODEV;
1221 if (WARN_ON(msg->size > 16))
1222 return -E2BIG;
1223
1224 ret = nvkm_i2c_aux_acquire(aux);
1225 if (ret)
1226 return ret;
1227
1228 ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1229 msg->buffer, &size);
1230 nvkm_i2c_aux_release(aux);
1231 if (ret >= 0) {
1232 msg->reply = ret;
1233 return size;
1234 }
1235
1236 return ret;
1237 }
1238
1239 static int
drm_conntype_from_dcb(enum dcb_connector_type dcb)1240 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1241 {
1242 switch (dcb) {
1243 case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA;
1244 case DCB_CONNECTOR_TV_0 :
1245 case DCB_CONNECTOR_TV_1 :
1246 case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV;
1247 case DCB_CONNECTOR_DMS59_0 :
1248 case DCB_CONNECTOR_DMS59_1 :
1249 case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII;
1250 case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID;
1251 case DCB_CONNECTOR_LVDS :
1252 case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1253 case DCB_CONNECTOR_DMS59_DP0:
1254 case DCB_CONNECTOR_DMS59_DP1:
1255 case DCB_CONNECTOR_DP :
1256 case DCB_CONNECTOR_USB_C : return DRM_MODE_CONNECTOR_DisplayPort;
1257 case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP;
1258 case DCB_CONNECTOR_HDMI_0 :
1259 case DCB_CONNECTOR_HDMI_1 :
1260 case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA;
1261 case DCB_CONNECTOR_WFD : return DRM_MODE_CONNECTOR_VIRTUAL;
1262 default:
1263 break;
1264 }
1265
1266 return DRM_MODE_CONNECTOR_Unknown;
1267 }
1268
1269 struct drm_connector *
nouveau_connector_create(struct drm_device * dev,const struct dcb_output * dcbe)1270 nouveau_connector_create(struct drm_device *dev,
1271 const struct dcb_output *dcbe)
1272 {
1273 const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1274 struct nouveau_drm *drm = nouveau_drm(dev);
1275 struct nouveau_display *disp = nouveau_display(dev);
1276 struct nouveau_connector *nv_connector = NULL;
1277 struct drm_connector *connector;
1278 struct drm_connector_list_iter conn_iter;
1279 char aux_name[48] = {0};
1280 int index = dcbe->connector;
1281 int type, ret = 0;
1282 bool dummy;
1283
1284 drm_connector_list_iter_begin(dev, &conn_iter);
1285 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1286 nv_connector = nouveau_connector(connector);
1287 if (nv_connector->index == index) {
1288 drm_connector_list_iter_end(&conn_iter);
1289 return connector;
1290 }
1291 }
1292 drm_connector_list_iter_end(&conn_iter);
1293
1294 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1295 if (!nv_connector)
1296 return ERR_PTR(-ENOMEM);
1297
1298 connector = &nv_connector->base;
1299 nv_connector->index = index;
1300
1301 /* attempt to parse vbios connector type and hotplug gpio */
1302 nv_connector->dcb = olddcb_conn(dev, index);
1303 if (nv_connector->dcb) {
1304 u32 entry = ROM16(nv_connector->dcb[0]);
1305 if (olddcb_conntab(dev)[3] >= 4)
1306 entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1307
1308 nv_connector->type = nv_connector->dcb[0];
1309 if (drm_conntype_from_dcb(nv_connector->type) ==
1310 DRM_MODE_CONNECTOR_Unknown) {
1311 NV_WARN(drm, "unknown connector type %02x\n",
1312 nv_connector->type);
1313 nv_connector->type = DCB_CONNECTOR_NONE;
1314 }
1315
1316 /* Gigabyte NX85T */
1317 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1318 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1319 nv_connector->type = DCB_CONNECTOR_DVI_I;
1320 }
1321
1322 /* Gigabyte GV-NX86T512H */
1323 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1324 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1325 nv_connector->type = DCB_CONNECTOR_DVI_I;
1326 }
1327 } else {
1328 nv_connector->type = DCB_CONNECTOR_NONE;
1329 }
1330
1331 /* no vbios data, or an unknown dcb connector type - attempt to
1332 * figure out something suitable ourselves
1333 */
1334 if (nv_connector->type == DCB_CONNECTOR_NONE) {
1335 struct dcb_table *dcbt = &drm->vbios.dcb;
1336 u32 encoders = 0;
1337 int i;
1338
1339 for (i = 0; i < dcbt->entries; i++) {
1340 if (dcbt->entry[i].connector == nv_connector->index)
1341 encoders |= (1 << dcbt->entry[i].type);
1342 }
1343
1344 if (encoders & (1 << DCB_OUTPUT_DP)) {
1345 if (encoders & (1 << DCB_OUTPUT_TMDS))
1346 nv_connector->type = DCB_CONNECTOR_DP;
1347 else
1348 nv_connector->type = DCB_CONNECTOR_eDP;
1349 } else
1350 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1351 if (encoders & (1 << DCB_OUTPUT_ANALOG))
1352 nv_connector->type = DCB_CONNECTOR_DVI_I;
1353 else
1354 nv_connector->type = DCB_CONNECTOR_DVI_D;
1355 } else
1356 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1357 nv_connector->type = DCB_CONNECTOR_VGA;
1358 } else
1359 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1360 nv_connector->type = DCB_CONNECTOR_LVDS;
1361 } else
1362 if (encoders & (1 << DCB_OUTPUT_TV)) {
1363 nv_connector->type = DCB_CONNECTOR_TV_0;
1364 }
1365 }
1366
1367 switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1368 case DRM_MODE_CONNECTOR_LVDS:
1369 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1370 if (ret) {
1371 NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1372 kfree(nv_connector);
1373 return ERR_PTR(ret);
1374 }
1375
1376 funcs = &nouveau_connector_funcs_lvds;
1377 break;
1378 case DRM_MODE_CONNECTOR_DisplayPort:
1379 case DRM_MODE_CONNECTOR_eDP:
1380 nv_connector->aux.dev = connector->kdev;
1381 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1382 snprintf(aux_name, sizeof(aux_name), "sor-%04x-%04x",
1383 dcbe->hasht, dcbe->hashm);
1384 nv_connector->aux.name = kstrdup(aux_name, GFP_KERNEL);
1385 ret = drm_dp_aux_register(&nv_connector->aux);
1386 if (ret) {
1387 NV_ERROR(drm, "failed to register aux channel\n");
1388 kfree(nv_connector);
1389 return ERR_PTR(ret);
1390 }
1391 funcs = &nouveau_connector_funcs;
1392 break;
1393 default:
1394 funcs = &nouveau_connector_funcs;
1395 break;
1396 }
1397
1398 /* HDMI 3D support */
1399 if ((disp->disp.object.oclass >= G82_DISP)
1400 && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1401 || (type == DRM_MODE_CONNECTOR_eDP)
1402 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1403 connector->stereo_allowed = true;
1404
1405 /* defaults, will get overridden in detect() */
1406 connector->interlace_allowed = false;
1407 connector->doublescan_allowed = false;
1408
1409 drm_connector_init(dev, connector, funcs, type);
1410 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1411
1412 connector->funcs->reset(connector);
1413 nouveau_conn_attach_properties(connector);
1414
1415 /* Default scaling mode */
1416 switch (nv_connector->type) {
1417 case DCB_CONNECTOR_LVDS:
1418 case DCB_CONNECTOR_LVDS_SPWG:
1419 case DCB_CONNECTOR_eDP:
1420 /* see note in nouveau_connector_set_property() */
1421 if (disp->disp.object.oclass < NV50_DISP) {
1422 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1423 break;
1424 }
1425 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1426 break;
1427 default:
1428 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1429 break;
1430 }
1431
1432 /* dithering properties */
1433 switch (nv_connector->type) {
1434 case DCB_CONNECTOR_TV_0:
1435 case DCB_CONNECTOR_TV_1:
1436 case DCB_CONNECTOR_TV_3:
1437 case DCB_CONNECTOR_VGA:
1438 break;
1439 default:
1440 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1441 break;
1442 }
1443
1444 switch (type) {
1445 case DRM_MODE_CONNECTOR_DisplayPort:
1446 case DRM_MODE_CONNECTOR_eDP:
1447 drm_dp_cec_register_connector(&nv_connector->aux, connector);
1448 break;
1449 }
1450
1451 ret = nvif_notify_init(&disp->disp.object, nouveau_connector_hotplug,
1452 true, NV04_DISP_NTFY_CONN,
1453 &(struct nvif_notify_conn_req_v0) {
1454 .mask = NVIF_NOTIFY_CONN_V0_ANY,
1455 .conn = index,
1456 },
1457 sizeof(struct nvif_notify_conn_req_v0),
1458 sizeof(struct nvif_notify_conn_rep_v0),
1459 &nv_connector->hpd);
1460 if (ret)
1461 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1462 else
1463 connector->polled = DRM_CONNECTOR_POLL_HPD;
1464
1465 drm_connector_register(connector);
1466 return connector;
1467 }
1468