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 "drmP.h"
30 #include "drm_edid.h"
31 #include "drm_crtc_helper.h"
32
33 #include "nouveau_reg.h"
34 #include "nouveau_drv.h"
35 #include "nouveau_encoder.h"
36 #include "nouveau_crtc.h"
37 #include "nouveau_connector.h"
38 #include "nouveau_hw.h"
39
40 static void nouveau_connector_hotplug(void *, int);
41
42 static struct nouveau_encoder *
find_encoder_by_type(struct drm_connector * connector,int type)43 find_encoder_by_type(struct drm_connector *connector, int type)
44 {
45 struct drm_device *dev = connector->dev;
46 struct nouveau_encoder *nv_encoder;
47 struct drm_mode_object *obj;
48 int i, id;
49
50 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
51 id = connector->encoder_ids[i];
52 if (!id)
53 break;
54
55 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
56 if (!obj)
57 continue;
58 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
59
60 if (type == OUTPUT_ANY || nv_encoder->dcb->type == type)
61 return nv_encoder;
62 }
63
64 return NULL;
65 }
66
67 struct nouveau_connector *
nouveau_encoder_connector_get(struct nouveau_encoder * encoder)68 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
69 {
70 struct drm_device *dev = to_drm_encoder(encoder)->dev;
71 struct drm_connector *drm_connector;
72
73 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
74 if (drm_connector->encoder == to_drm_encoder(encoder))
75 return nouveau_connector(drm_connector);
76 }
77
78 return NULL;
79 }
80
81 /*TODO: This could use improvement, and learn to handle the fixed
82 * BIOS tables etc. It's fine currently, for its only user.
83 */
84 int
nouveau_connector_bpp(struct drm_connector * connector)85 nouveau_connector_bpp(struct drm_connector *connector)
86 {
87 struct nouveau_connector *nv_connector = nouveau_connector(connector);
88
89 if (nv_connector->edid && nv_connector->edid->revision >= 4) {
90 u8 bpc = ((nv_connector->edid->input & 0x70) >> 3) + 4;
91 if (bpc > 4)
92 return bpc;
93 }
94
95 return 18;
96 }
97
98 static void
nouveau_connector_destroy(struct drm_connector * connector)99 nouveau_connector_destroy(struct drm_connector *connector)
100 {
101 struct nouveau_connector *nv_connector = nouveau_connector(connector);
102 struct drm_nouveau_private *dev_priv;
103 struct nouveau_gpio_engine *pgpio;
104 struct drm_device *dev;
105
106 if (!nv_connector)
107 return;
108
109 dev = nv_connector->base.dev;
110 dev_priv = dev->dev_private;
111 NV_DEBUG_KMS(dev, "\n");
112
113 pgpio = &dev_priv->engine.gpio;
114 if (pgpio->irq_unregister) {
115 pgpio->irq_unregister(dev, nv_connector->dcb->gpio_tag,
116 nouveau_connector_hotplug, connector);
117 }
118
119 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS ||
120 connector->connector_type == DRM_MODE_CONNECTOR_eDP)
121 nouveau_backlight_exit(connector);
122
123 kfree(nv_connector->edid);
124 drm_sysfs_connector_remove(connector);
125 drm_connector_cleanup(connector);
126 kfree(connector);
127 }
128
129 static struct nouveau_i2c_chan *
nouveau_connector_ddc_detect(struct drm_connector * connector,struct nouveau_encoder ** pnv_encoder)130 nouveau_connector_ddc_detect(struct drm_connector *connector,
131 struct nouveau_encoder **pnv_encoder)
132 {
133 struct drm_device *dev = connector->dev;
134 int i;
135
136 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
137 struct nouveau_i2c_chan *i2c = NULL;
138 struct nouveau_encoder *nv_encoder;
139 struct drm_mode_object *obj;
140 int id;
141
142 id = connector->encoder_ids[i];
143 if (!id)
144 break;
145
146 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
147 if (!obj)
148 continue;
149 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
150
151 if (nv_encoder->dcb->i2c_index < 0xf)
152 i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
153
154 if (i2c && nouveau_probe_i2c_addr(i2c, 0x50)) {
155 *pnv_encoder = nv_encoder;
156 return i2c;
157 }
158 }
159
160 return NULL;
161 }
162
163 static struct nouveau_encoder *
nouveau_connector_of_detect(struct drm_connector * connector)164 nouveau_connector_of_detect(struct drm_connector *connector)
165 {
166 #ifdef __powerpc__
167 struct drm_device *dev = connector->dev;
168 struct nouveau_connector *nv_connector = nouveau_connector(connector);
169 struct nouveau_encoder *nv_encoder;
170 struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
171
172 if (!dn ||
173 !((nv_encoder = find_encoder_by_type(connector, OUTPUT_TMDS)) ||
174 (nv_encoder = find_encoder_by_type(connector, OUTPUT_ANALOG))))
175 return NULL;
176
177 for_each_child_of_node(dn, cn) {
178 const char *name = of_get_property(cn, "name", NULL);
179 const void *edid = of_get_property(cn, "EDID", NULL);
180 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
181
182 if (nv_encoder->dcb->i2c_index == idx && edid) {
183 nv_connector->edid =
184 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
185 of_node_put(cn);
186 return nv_encoder;
187 }
188 }
189 #endif
190 return NULL;
191 }
192
193 static void
nouveau_connector_set_encoder(struct drm_connector * connector,struct nouveau_encoder * nv_encoder)194 nouveau_connector_set_encoder(struct drm_connector *connector,
195 struct nouveau_encoder *nv_encoder)
196 {
197 struct nouveau_connector *nv_connector = nouveau_connector(connector);
198 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
199 struct drm_device *dev = connector->dev;
200
201 if (nv_connector->detected_encoder == nv_encoder)
202 return;
203 nv_connector->detected_encoder = nv_encoder;
204
205 if (nv_encoder->dcb->type == OUTPUT_LVDS ||
206 nv_encoder->dcb->type == OUTPUT_TMDS) {
207 connector->doublescan_allowed = false;
208 connector->interlace_allowed = false;
209 } else {
210 connector->doublescan_allowed = true;
211 if (dev_priv->card_type == NV_20 ||
212 (dev_priv->card_type == NV_10 &&
213 (dev->pci_device & 0x0ff0) != 0x0100 &&
214 (dev->pci_device & 0x0ff0) != 0x0150))
215 /* HW is broken */
216 connector->interlace_allowed = false;
217 else
218 connector->interlace_allowed = true;
219 }
220
221 if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
222 drm_connector_property_set_value(connector,
223 dev->mode_config.dvi_i_subconnector_property,
224 nv_encoder->dcb->type == OUTPUT_TMDS ?
225 DRM_MODE_SUBCONNECTOR_DVID :
226 DRM_MODE_SUBCONNECTOR_DVIA);
227 }
228 }
229
230 static enum drm_connector_status
nouveau_connector_detect(struct drm_connector * connector,bool force)231 nouveau_connector_detect(struct drm_connector *connector, bool force)
232 {
233 struct drm_device *dev = connector->dev;
234 struct nouveau_connector *nv_connector = nouveau_connector(connector);
235 struct nouveau_encoder *nv_encoder = NULL;
236 struct nouveau_i2c_chan *i2c;
237 int type;
238
239 /* Cleanup the previous EDID block. */
240 if (nv_connector->edid) {
241 drm_mode_connector_update_edid_property(connector, NULL);
242 kfree(nv_connector->edid);
243 nv_connector->edid = NULL;
244 }
245
246 i2c = nouveau_connector_ddc_detect(connector, &nv_encoder);
247 if (i2c) {
248 nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
249 drm_mode_connector_update_edid_property(connector,
250 nv_connector->edid);
251 if (!nv_connector->edid) {
252 NV_ERROR(dev, "DDC responded, but no EDID for %s\n",
253 drm_get_connector_name(connector));
254 goto detect_analog;
255 }
256
257 if (nv_encoder->dcb->type == OUTPUT_DP &&
258 !nouveau_dp_detect(to_drm_encoder(nv_encoder))) {
259 NV_ERROR(dev, "Detected %s, but failed init\n",
260 drm_get_connector_name(connector));
261 return connector_status_disconnected;
262 }
263
264 /* Override encoder type for DVI-I based on whether EDID
265 * says the display is digital or analog, both use the
266 * same i2c channel so the value returned from ddc_detect
267 * isn't necessarily correct.
268 */
269 if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
270 if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
271 type = OUTPUT_TMDS;
272 else
273 type = OUTPUT_ANALOG;
274
275 nv_encoder = find_encoder_by_type(connector, type);
276 if (!nv_encoder) {
277 NV_ERROR(dev, "Detected %d encoder on %s, "
278 "but no object!\n", type,
279 drm_get_connector_name(connector));
280 return connector_status_disconnected;
281 }
282 }
283
284 nouveau_connector_set_encoder(connector, nv_encoder);
285 return connector_status_connected;
286 }
287
288 nv_encoder = nouveau_connector_of_detect(connector);
289 if (nv_encoder) {
290 nouveau_connector_set_encoder(connector, nv_encoder);
291 return connector_status_connected;
292 }
293
294 detect_analog:
295 nv_encoder = find_encoder_by_type(connector, OUTPUT_ANALOG);
296 if (!nv_encoder && !nouveau_tv_disable)
297 nv_encoder = find_encoder_by_type(connector, OUTPUT_TV);
298 if (nv_encoder && force) {
299 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
300 struct drm_encoder_helper_funcs *helper =
301 encoder->helper_private;
302
303 if (helper->detect(encoder, connector) ==
304 connector_status_connected) {
305 nouveau_connector_set_encoder(connector, nv_encoder);
306 return connector_status_connected;
307 }
308
309 }
310
311 return connector_status_disconnected;
312 }
313
314 static enum drm_connector_status
nouveau_connector_detect_lvds(struct drm_connector * connector,bool force)315 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
316 {
317 struct drm_device *dev = connector->dev;
318 struct drm_nouveau_private *dev_priv = dev->dev_private;
319 struct nouveau_connector *nv_connector = nouveau_connector(connector);
320 struct nouveau_encoder *nv_encoder = NULL;
321 enum drm_connector_status status = connector_status_disconnected;
322
323 /* Cleanup the previous EDID block. */
324 if (nv_connector->edid) {
325 drm_mode_connector_update_edid_property(connector, NULL);
326 kfree(nv_connector->edid);
327 nv_connector->edid = NULL;
328 }
329
330 nv_encoder = find_encoder_by_type(connector, OUTPUT_LVDS);
331 if (!nv_encoder)
332 return connector_status_disconnected;
333
334 /* Try retrieving EDID via DDC */
335 if (!dev_priv->vbios.fp_no_ddc) {
336 status = nouveau_connector_detect(connector, force);
337 if (status == connector_status_connected)
338 goto out;
339 }
340
341 /* On some laptops (Sony, i'm looking at you) there appears to
342 * be no direct way of accessing the panel's EDID. The only
343 * option available to us appears to be to ask ACPI for help..
344 *
345 * It's important this check's before trying straps, one of the
346 * said manufacturer's laptops are configured in such a way
347 * the nouveau decides an entry in the VBIOS FP mode table is
348 * valid - it's not (rh#613284)
349 */
350 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
351 if (!nouveau_acpi_edid(dev, connector)) {
352 status = connector_status_connected;
353 goto out;
354 }
355 }
356
357 /* If no EDID found above, and the VBIOS indicates a hardcoded
358 * modeline is avalilable for the panel, set it as the panel's
359 * native mode and exit.
360 */
361 if (nouveau_bios_fp_mode(dev, NULL) && (dev_priv->vbios.fp_no_ddc ||
362 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
363 status = connector_status_connected;
364 goto out;
365 }
366
367 /* Still nothing, some VBIOS images have a hardcoded EDID block
368 * stored for the panel stored in them.
369 */
370 if (!dev_priv->vbios.fp_no_ddc) {
371 struct edid *edid =
372 (struct edid *)nouveau_bios_embedded_edid(dev);
373 if (edid) {
374 nv_connector->edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
375 *(nv_connector->edid) = *edid;
376 status = connector_status_connected;
377 }
378 }
379
380 out:
381 #if defined(CONFIG_ACPI_BUTTON) || \
382 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
383 if (status == connector_status_connected &&
384 !nouveau_ignorelid && !acpi_lid_open())
385 status = connector_status_unknown;
386 #endif
387
388 drm_mode_connector_update_edid_property(connector, nv_connector->edid);
389 nouveau_connector_set_encoder(connector, nv_encoder);
390 return status;
391 }
392
393 static void
nouveau_connector_force(struct drm_connector * connector)394 nouveau_connector_force(struct drm_connector *connector)
395 {
396 struct nouveau_connector *nv_connector = nouveau_connector(connector);
397 struct nouveau_encoder *nv_encoder;
398 int type;
399
400 if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
401 if (connector->force == DRM_FORCE_ON_DIGITAL)
402 type = OUTPUT_TMDS;
403 else
404 type = OUTPUT_ANALOG;
405 } else
406 type = OUTPUT_ANY;
407
408 nv_encoder = find_encoder_by_type(connector, type);
409 if (!nv_encoder) {
410 NV_ERROR(connector->dev, "can't find encoder to force %s on!\n",
411 drm_get_connector_name(connector));
412 connector->status = connector_status_disconnected;
413 return;
414 }
415
416 nouveau_connector_set_encoder(connector, nv_encoder);
417 }
418
419 static int
nouveau_connector_set_property(struct drm_connector * connector,struct drm_property * property,uint64_t value)420 nouveau_connector_set_property(struct drm_connector *connector,
421 struct drm_property *property, uint64_t value)
422 {
423 struct nouveau_connector *nv_connector = nouveau_connector(connector);
424 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
425 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
426 struct drm_device *dev = connector->dev;
427 int ret;
428
429 /* Scaling mode */
430 if (property == dev->mode_config.scaling_mode_property) {
431 struct nouveau_crtc *nv_crtc = NULL;
432 bool modeset = false;
433
434 switch (value) {
435 case DRM_MODE_SCALE_NONE:
436 case DRM_MODE_SCALE_FULLSCREEN:
437 case DRM_MODE_SCALE_CENTER:
438 case DRM_MODE_SCALE_ASPECT:
439 break;
440 default:
441 return -EINVAL;
442 }
443
444 /* LVDS always needs gpu scaling */
445 if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS &&
446 value == DRM_MODE_SCALE_NONE)
447 return -EINVAL;
448
449 /* Changing between GPU and panel scaling requires a full
450 * modeset
451 */
452 if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) ||
453 (value == DRM_MODE_SCALE_NONE))
454 modeset = true;
455 nv_connector->scaling_mode = value;
456
457 if (connector->encoder && connector->encoder->crtc)
458 nv_crtc = nouveau_crtc(connector->encoder->crtc);
459 if (!nv_crtc)
460 return 0;
461
462 if (modeset || !nv_crtc->set_scale) {
463 ret = drm_crtc_helper_set_mode(&nv_crtc->base,
464 &nv_crtc->base.mode,
465 nv_crtc->base.x,
466 nv_crtc->base.y, NULL);
467 if (!ret)
468 return -EINVAL;
469 } else {
470 ret = nv_crtc->set_scale(nv_crtc, value, true);
471 if (ret)
472 return ret;
473 }
474
475 return 0;
476 }
477
478 /* Dithering */
479 if (property == dev->mode_config.dithering_mode_property) {
480 struct nouveau_crtc *nv_crtc = NULL;
481
482 if (value == DRM_MODE_DITHERING_ON)
483 nv_connector->use_dithering = true;
484 else
485 nv_connector->use_dithering = false;
486
487 if (connector->encoder && connector->encoder->crtc)
488 nv_crtc = nouveau_crtc(connector->encoder->crtc);
489
490 if (!nv_crtc || !nv_crtc->set_dither)
491 return 0;
492
493 return nv_crtc->set_dither(nv_crtc, nv_connector->use_dithering,
494 true);
495 }
496
497 if (nv_encoder && nv_encoder->dcb->type == OUTPUT_TV)
498 return get_slave_funcs(encoder)->set_property(
499 encoder, connector, property, value);
500
501 return -EINVAL;
502 }
503
504 static struct drm_display_mode *
nouveau_connector_native_mode(struct drm_connector * connector)505 nouveau_connector_native_mode(struct drm_connector *connector)
506 {
507 struct drm_connector_helper_funcs *helper = connector->helper_private;
508 struct nouveau_connector *nv_connector = nouveau_connector(connector);
509 struct drm_device *dev = connector->dev;
510 struct drm_display_mode *mode, *largest = NULL;
511 int high_w = 0, high_h = 0, high_v = 0;
512
513 list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
514 mode->vrefresh = drm_mode_vrefresh(mode);
515 if (helper->mode_valid(connector, mode) != MODE_OK ||
516 (mode->flags & DRM_MODE_FLAG_INTERLACE))
517 continue;
518
519 /* Use preferred mode if there is one.. */
520 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
521 NV_DEBUG_KMS(dev, "native mode from preferred\n");
522 return drm_mode_duplicate(dev, mode);
523 }
524
525 /* Otherwise, take the resolution with the largest width, then
526 * height, then vertical refresh
527 */
528 if (mode->hdisplay < high_w)
529 continue;
530
531 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
532 continue;
533
534 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
535 mode->vrefresh < high_v)
536 continue;
537
538 high_w = mode->hdisplay;
539 high_h = mode->vdisplay;
540 high_v = mode->vrefresh;
541 largest = mode;
542 }
543
544 NV_DEBUG_KMS(dev, "native mode from largest: %dx%d@%d\n",
545 high_w, high_h, high_v);
546 return largest ? drm_mode_duplicate(dev, largest) : NULL;
547 }
548
549 struct moderec {
550 int hdisplay;
551 int vdisplay;
552 };
553
554 static struct moderec scaler_modes[] = {
555 { 1920, 1200 },
556 { 1920, 1080 },
557 { 1680, 1050 },
558 { 1600, 1200 },
559 { 1400, 1050 },
560 { 1280, 1024 },
561 { 1280, 960 },
562 { 1152, 864 },
563 { 1024, 768 },
564 { 800, 600 },
565 { 720, 400 },
566 { 640, 480 },
567 { 640, 400 },
568 { 640, 350 },
569 {}
570 };
571
572 static int
nouveau_connector_scaler_modes_add(struct drm_connector * connector)573 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
574 {
575 struct nouveau_connector *nv_connector = nouveau_connector(connector);
576 struct drm_display_mode *native = nv_connector->native_mode, *m;
577 struct drm_device *dev = connector->dev;
578 struct moderec *mode = &scaler_modes[0];
579 int modes = 0;
580
581 if (!native)
582 return 0;
583
584 while (mode->hdisplay) {
585 if (mode->hdisplay <= native->hdisplay &&
586 mode->vdisplay <= native->vdisplay) {
587 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
588 drm_mode_vrefresh(native), false,
589 false, false);
590 if (!m)
591 continue;
592
593 m->type |= DRM_MODE_TYPE_DRIVER;
594
595 drm_mode_probed_add(connector, m);
596 modes++;
597 }
598
599 mode++;
600 }
601
602 return modes;
603 }
604
605 static int
nouveau_connector_get_modes(struct drm_connector * connector)606 nouveau_connector_get_modes(struct drm_connector *connector)
607 {
608 struct drm_device *dev = connector->dev;
609 struct drm_nouveau_private *dev_priv = dev->dev_private;
610 struct nouveau_connector *nv_connector = nouveau_connector(connector);
611 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
612 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
613 int ret = 0;
614
615 /* destroy the native mode, the attached monitor could have changed.
616 */
617 if (nv_connector->native_mode) {
618 drm_mode_destroy(dev, nv_connector->native_mode);
619 nv_connector->native_mode = NULL;
620 }
621
622 if (nv_connector->edid)
623 ret = drm_add_edid_modes(connector, nv_connector->edid);
624 else
625 if (nv_encoder->dcb->type == OUTPUT_LVDS &&
626 (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
627 dev_priv->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
628 struct drm_display_mode mode;
629
630 nouveau_bios_fp_mode(dev, &mode);
631 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
632 }
633
634 /* Find the native mode if this is a digital panel, if we didn't
635 * find any modes through DDC previously add the native mode to
636 * the list of modes.
637 */
638 if (!nv_connector->native_mode)
639 nv_connector->native_mode =
640 nouveau_connector_native_mode(connector);
641 if (ret == 0 && nv_connector->native_mode) {
642 struct drm_display_mode *mode;
643
644 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
645 drm_mode_probed_add(connector, mode);
646 ret = 1;
647 }
648
649 if (nv_encoder->dcb->type == OUTPUT_TV)
650 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
651
652 if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS ||
653 nv_connector->dcb->type == DCB_CONNECTOR_eDP)
654 ret += nouveau_connector_scaler_modes_add(connector);
655
656 return ret;
657 }
658
659 static unsigned
get_tmds_link_bandwidth(struct drm_connector * connector)660 get_tmds_link_bandwidth(struct drm_connector *connector)
661 {
662 struct nouveau_connector *nv_connector = nouveau_connector(connector);
663 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
664 struct dcb_entry *dcb = nv_connector->detected_encoder->dcb;
665
666 if (dcb->location != DCB_LOC_ON_CHIP ||
667 dev_priv->chipset >= 0x46)
668 return 165000;
669 else if (dev_priv->chipset >= 0x40)
670 return 155000;
671 else if (dev_priv->chipset >= 0x18)
672 return 135000;
673 else
674 return 112000;
675 }
676
677 static int
nouveau_connector_mode_valid(struct drm_connector * connector,struct drm_display_mode * mode)678 nouveau_connector_mode_valid(struct drm_connector *connector,
679 struct drm_display_mode *mode)
680 {
681 struct nouveau_connector *nv_connector = nouveau_connector(connector);
682 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
683 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
684 unsigned min_clock = 25000, max_clock = min_clock;
685 unsigned clock = mode->clock;
686
687 switch (nv_encoder->dcb->type) {
688 case OUTPUT_LVDS:
689 if (nv_connector->native_mode &&
690 (mode->hdisplay > nv_connector->native_mode->hdisplay ||
691 mode->vdisplay > nv_connector->native_mode->vdisplay))
692 return MODE_PANEL;
693
694 min_clock = 0;
695 max_clock = 400000;
696 break;
697 case OUTPUT_TMDS:
698 max_clock = get_tmds_link_bandwidth(connector);
699 if (nouveau_duallink && nv_encoder->dcb->duallink_possible)
700 max_clock *= 2;
701 break;
702 case OUTPUT_ANALOG:
703 max_clock = nv_encoder->dcb->crtconf.maxfreq;
704 if (!max_clock)
705 max_clock = 350000;
706 break;
707 case OUTPUT_TV:
708 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
709 case OUTPUT_DP:
710 if (nv_encoder->dp.link_bw == DP_LINK_BW_2_7)
711 max_clock = nv_encoder->dp.link_nr * 270000;
712 else
713 max_clock = nv_encoder->dp.link_nr * 162000;
714
715 clock = clock * nouveau_connector_bpp(connector) / 8;
716 break;
717 default:
718 BUG_ON(1);
719 return MODE_BAD;
720 }
721
722 if (clock < min_clock)
723 return MODE_CLOCK_LOW;
724
725 if (clock > max_clock)
726 return MODE_CLOCK_HIGH;
727
728 return MODE_OK;
729 }
730
731 static struct drm_encoder *
nouveau_connector_best_encoder(struct drm_connector * connector)732 nouveau_connector_best_encoder(struct drm_connector *connector)
733 {
734 struct nouveau_connector *nv_connector = nouveau_connector(connector);
735
736 if (nv_connector->detected_encoder)
737 return to_drm_encoder(nv_connector->detected_encoder);
738
739 return NULL;
740 }
741
742 static const struct drm_connector_helper_funcs
743 nouveau_connector_helper_funcs = {
744 .get_modes = nouveau_connector_get_modes,
745 .mode_valid = nouveau_connector_mode_valid,
746 .best_encoder = nouveau_connector_best_encoder,
747 };
748
749 static const struct drm_connector_funcs
750 nouveau_connector_funcs = {
751 .dpms = drm_helper_connector_dpms,
752 .save = NULL,
753 .restore = NULL,
754 .detect = nouveau_connector_detect,
755 .destroy = nouveau_connector_destroy,
756 .fill_modes = drm_helper_probe_single_connector_modes,
757 .set_property = nouveau_connector_set_property,
758 .force = nouveau_connector_force
759 };
760
761 static const struct drm_connector_funcs
762 nouveau_connector_funcs_lvds = {
763 .dpms = drm_helper_connector_dpms,
764 .save = NULL,
765 .restore = NULL,
766 .detect = nouveau_connector_detect_lvds,
767 .destroy = nouveau_connector_destroy,
768 .fill_modes = drm_helper_probe_single_connector_modes,
769 .set_property = nouveau_connector_set_property,
770 .force = nouveau_connector_force
771 };
772
773 struct drm_connector *
nouveau_connector_create(struct drm_device * dev,int index)774 nouveau_connector_create(struct drm_device *dev, int index)
775 {
776 const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
777 struct drm_nouveau_private *dev_priv = dev->dev_private;
778 struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
779 struct nouveau_connector *nv_connector = NULL;
780 struct dcb_connector_table_entry *dcb = NULL;
781 struct drm_connector *connector;
782 int type, ret = 0;
783
784 NV_DEBUG_KMS(dev, "\n");
785
786 if (index >= dev_priv->vbios.dcb.connector.entries)
787 return ERR_PTR(-EINVAL);
788
789 dcb = &dev_priv->vbios.dcb.connector.entry[index];
790 if (dcb->drm)
791 return dcb->drm;
792
793 switch (dcb->type) {
794 case DCB_CONNECTOR_VGA:
795 type = DRM_MODE_CONNECTOR_VGA;
796 break;
797 case DCB_CONNECTOR_TV_0:
798 case DCB_CONNECTOR_TV_1:
799 case DCB_CONNECTOR_TV_3:
800 type = DRM_MODE_CONNECTOR_TV;
801 break;
802 case DCB_CONNECTOR_DVI_I:
803 type = DRM_MODE_CONNECTOR_DVII;
804 break;
805 case DCB_CONNECTOR_DVI_D:
806 type = DRM_MODE_CONNECTOR_DVID;
807 break;
808 case DCB_CONNECTOR_HDMI_0:
809 case DCB_CONNECTOR_HDMI_1:
810 type = DRM_MODE_CONNECTOR_HDMIA;
811 break;
812 case DCB_CONNECTOR_LVDS:
813 type = DRM_MODE_CONNECTOR_LVDS;
814 funcs = &nouveau_connector_funcs_lvds;
815 break;
816 case DCB_CONNECTOR_DP:
817 type = DRM_MODE_CONNECTOR_DisplayPort;
818 break;
819 case DCB_CONNECTOR_eDP:
820 type = DRM_MODE_CONNECTOR_eDP;
821 break;
822 default:
823 NV_ERROR(dev, "unknown connector type: 0x%02x!!\n", dcb->type);
824 return ERR_PTR(-EINVAL);
825 }
826
827 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
828 if (!nv_connector)
829 return ERR_PTR(-ENOMEM);
830 nv_connector->dcb = dcb;
831 connector = &nv_connector->base;
832
833 /* defaults, will get overridden in detect() */
834 connector->interlace_allowed = false;
835 connector->doublescan_allowed = false;
836
837 drm_connector_init(dev, connector, funcs, type);
838 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
839
840 /* Check if we need dithering enabled */
841 if (dcb->type == DCB_CONNECTOR_LVDS) {
842 bool dummy, is_24bit = false;
843
844 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &is_24bit);
845 if (ret) {
846 NV_ERROR(dev, "Error parsing LVDS table, disabling "
847 "LVDS\n");
848 goto fail;
849 }
850
851 nv_connector->use_dithering = !is_24bit;
852 }
853
854 /* Init DVI-I specific properties */
855 if (dcb->type == DCB_CONNECTOR_DVI_I) {
856 drm_mode_create_dvi_i_properties(dev);
857 drm_connector_attach_property(connector, dev->mode_config.dvi_i_subconnector_property, 0);
858 drm_connector_attach_property(connector, dev->mode_config.dvi_i_select_subconnector_property, 0);
859 }
860
861 switch (dcb->type) {
862 case DCB_CONNECTOR_VGA:
863 if (dev_priv->card_type >= NV_50) {
864 drm_connector_attach_property(connector,
865 dev->mode_config.scaling_mode_property,
866 nv_connector->scaling_mode);
867 }
868 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
869 /* fall-through */
870 case DCB_CONNECTOR_TV_0:
871 case DCB_CONNECTOR_TV_1:
872 case DCB_CONNECTOR_TV_3:
873 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
874 break;
875 default:
876 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
877
878 drm_connector_attach_property(connector,
879 dev->mode_config.scaling_mode_property,
880 nv_connector->scaling_mode);
881 drm_connector_attach_property(connector,
882 dev->mode_config.dithering_mode_property,
883 nv_connector->use_dithering ?
884 DRM_MODE_DITHERING_ON : DRM_MODE_DITHERING_OFF);
885
886 if (dcb->type != DCB_CONNECTOR_LVDS) {
887 if (dev_priv->card_type >= NV_50)
888 connector->polled = DRM_CONNECTOR_POLL_HPD;
889 else
890 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
891 }
892 break;
893 }
894
895 if (pgpio->irq_register) {
896 pgpio->irq_register(dev, nv_connector->dcb->gpio_tag,
897 nouveau_connector_hotplug, connector);
898 }
899
900 drm_sysfs_connector_add(connector);
901
902 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS ||
903 connector->connector_type == DRM_MODE_CONNECTOR_eDP)
904 nouveau_backlight_init(connector);
905
906 dcb->drm = connector;
907 return dcb->drm;
908
909 fail:
910 drm_connector_cleanup(connector);
911 kfree(connector);
912 return ERR_PTR(ret);
913
914 }
915
916 static void
nouveau_connector_hotplug(void * data,int plugged)917 nouveau_connector_hotplug(void *data, int plugged)
918 {
919 struct drm_connector *connector = data;
920 struct drm_device *dev = connector->dev;
921
922 NV_INFO(dev, "%splugged %s\n", plugged ? "" : "un",
923 drm_get_connector_name(connector));
924
925 if (connector->encoder && connector->encoder->crtc &&
926 connector->encoder->crtc->enabled) {
927 struct nouveau_encoder *nv_encoder = nouveau_encoder(connector->encoder);
928 struct drm_encoder_helper_funcs *helper =
929 connector->encoder->helper_private;
930
931 if (nv_encoder->dcb->type == OUTPUT_DP) {
932 if (plugged)
933 helper->dpms(connector->encoder, DRM_MODE_DPMS_ON);
934 else
935 helper->dpms(connector->encoder, DRM_MODE_DPMS_OFF);
936 }
937 }
938
939 drm_helper_hpd_irq_event(dev);
940 }
941