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_gpio.h"
39 #include "nouveau_hw.h"
40
41 static void nouveau_connector_hotplug(void *, int);
42
43 struct nouveau_encoder *
find_encoder(struct drm_connector * connector,int type)44 find_encoder(struct drm_connector *connector, int type)
45 {
46 struct drm_device *dev = connector->dev;
47 struct nouveau_encoder *nv_encoder;
48 struct drm_mode_object *obj;
49 int i, id;
50
51 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
52 id = connector->encoder_ids[i];
53 if (!id)
54 break;
55
56 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
57 if (!obj)
58 continue;
59 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
60
61 if (type == OUTPUT_ANY || nv_encoder->dcb->type == type)
62 return nv_encoder;
63 }
64
65 return NULL;
66 }
67
68 struct nouveau_connector *
nouveau_encoder_connector_get(struct nouveau_encoder * encoder)69 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
70 {
71 struct drm_device *dev = to_drm_encoder(encoder)->dev;
72 struct drm_connector *drm_connector;
73
74 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
75 if (drm_connector->encoder == to_drm_encoder(encoder))
76 return nouveau_connector(drm_connector);
77 }
78
79 return NULL;
80 }
81
82 static void
nouveau_connector_destroy(struct drm_connector * connector)83 nouveau_connector_destroy(struct drm_connector *connector)
84 {
85 struct nouveau_connector *nv_connector = nouveau_connector(connector);
86 struct drm_nouveau_private *dev_priv;
87 struct drm_device *dev;
88
89 if (!nv_connector)
90 return;
91
92 dev = nv_connector->base.dev;
93 dev_priv = dev->dev_private;
94 NV_DEBUG_KMS(dev, "\n");
95
96 if (nv_connector->hpd != DCB_GPIO_UNUSED) {
97 nouveau_gpio_isr_del(dev, 0, nv_connector->hpd, 0xff,
98 nouveau_connector_hotplug, connector);
99 }
100
101 kfree(nv_connector->edid);
102 drm_sysfs_connector_remove(connector);
103 drm_connector_cleanup(connector);
104 kfree(connector);
105 }
106
107 static struct nouveau_i2c_chan *
nouveau_connector_ddc_detect(struct drm_connector * connector,struct nouveau_encoder ** pnv_encoder)108 nouveau_connector_ddc_detect(struct drm_connector *connector,
109 struct nouveau_encoder **pnv_encoder)
110 {
111 struct drm_device *dev = connector->dev;
112 int i;
113
114 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
115 struct nouveau_i2c_chan *i2c = NULL;
116 struct nouveau_encoder *nv_encoder;
117 struct drm_mode_object *obj;
118 int id;
119
120 id = connector->encoder_ids[i];
121 if (!id)
122 break;
123
124 obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
125 if (!obj)
126 continue;
127 nv_encoder = nouveau_encoder(obj_to_encoder(obj));
128
129 if (nv_encoder->dcb->i2c_index < 0xf)
130 i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
131
132 if (i2c && nouveau_probe_i2c_addr(i2c, 0x50)) {
133 *pnv_encoder = nv_encoder;
134 return i2c;
135 }
136 }
137
138 return NULL;
139 }
140
141 static struct nouveau_encoder *
nouveau_connector_of_detect(struct drm_connector * connector)142 nouveau_connector_of_detect(struct drm_connector *connector)
143 {
144 #ifdef __powerpc__
145 struct drm_device *dev = connector->dev;
146 struct nouveau_connector *nv_connector = nouveau_connector(connector);
147 struct nouveau_encoder *nv_encoder;
148 struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
149
150 if (!dn ||
151 !((nv_encoder = find_encoder(connector, OUTPUT_TMDS)) ||
152 (nv_encoder = find_encoder(connector, OUTPUT_ANALOG))))
153 return NULL;
154
155 for_each_child_of_node(dn, cn) {
156 const char *name = of_get_property(cn, "name", NULL);
157 const void *edid = of_get_property(cn, "EDID", NULL);
158 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
159
160 if (nv_encoder->dcb->i2c_index == idx && edid) {
161 nv_connector->edid =
162 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
163 of_node_put(cn);
164 return nv_encoder;
165 }
166 }
167 #endif
168 return NULL;
169 }
170
171 static void
nouveau_connector_set_encoder(struct drm_connector * connector,struct nouveau_encoder * nv_encoder)172 nouveau_connector_set_encoder(struct drm_connector *connector,
173 struct nouveau_encoder *nv_encoder)
174 {
175 struct nouveau_connector *nv_connector = nouveau_connector(connector);
176 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
177 struct drm_device *dev = connector->dev;
178
179 if (nv_connector->detected_encoder == nv_encoder)
180 return;
181 nv_connector->detected_encoder = nv_encoder;
182
183 if (dev_priv->card_type >= NV_50) {
184 connector->interlace_allowed = true;
185 connector->doublescan_allowed = true;
186 } else
187 if (nv_encoder->dcb->type == OUTPUT_LVDS ||
188 nv_encoder->dcb->type == OUTPUT_TMDS) {
189 connector->doublescan_allowed = false;
190 connector->interlace_allowed = false;
191 } else {
192 connector->doublescan_allowed = true;
193 if (dev_priv->card_type == NV_20 ||
194 (dev_priv->card_type == NV_10 &&
195 (dev->pci_device & 0x0ff0) != 0x0100 &&
196 (dev->pci_device & 0x0ff0) != 0x0150))
197 /* HW is broken */
198 connector->interlace_allowed = false;
199 else
200 connector->interlace_allowed = true;
201 }
202
203 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
204 drm_connector_property_set_value(connector,
205 dev->mode_config.dvi_i_subconnector_property,
206 nv_encoder->dcb->type == OUTPUT_TMDS ?
207 DRM_MODE_SUBCONNECTOR_DVID :
208 DRM_MODE_SUBCONNECTOR_DVIA);
209 }
210 }
211
212 static enum drm_connector_status
nouveau_connector_detect(struct drm_connector * connector,bool force)213 nouveau_connector_detect(struct drm_connector *connector, bool force)
214 {
215 struct drm_device *dev = connector->dev;
216 struct nouveau_connector *nv_connector = nouveau_connector(connector);
217 struct nouveau_encoder *nv_encoder = NULL;
218 struct nouveau_encoder *nv_partner;
219 struct nouveau_i2c_chan *i2c;
220 int type;
221
222 /* Cleanup the previous EDID block. */
223 if (nv_connector->edid) {
224 drm_mode_connector_update_edid_property(connector, NULL);
225 kfree(nv_connector->edid);
226 nv_connector->edid = NULL;
227 }
228
229 i2c = nouveau_connector_ddc_detect(connector, &nv_encoder);
230 if (i2c) {
231 nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
232 drm_mode_connector_update_edid_property(connector,
233 nv_connector->edid);
234 if (!nv_connector->edid) {
235 NV_ERROR(dev, "DDC responded, but no EDID for %s\n",
236 drm_get_connector_name(connector));
237 goto detect_analog;
238 }
239
240 if (nv_encoder->dcb->type == OUTPUT_DP &&
241 !nouveau_dp_detect(to_drm_encoder(nv_encoder))) {
242 NV_ERROR(dev, "Detected %s, but failed init\n",
243 drm_get_connector_name(connector));
244 return connector_status_disconnected;
245 }
246
247 /* Override encoder type for DVI-I based on whether EDID
248 * says the display is digital or analog, both use the
249 * same i2c channel so the value returned from ddc_detect
250 * isn't necessarily correct.
251 */
252 nv_partner = NULL;
253 if (nv_encoder->dcb->type == OUTPUT_TMDS)
254 nv_partner = find_encoder(connector, OUTPUT_ANALOG);
255 if (nv_encoder->dcb->type == OUTPUT_ANALOG)
256 nv_partner = find_encoder(connector, OUTPUT_TMDS);
257
258 if (nv_partner && ((nv_encoder->dcb->type == OUTPUT_ANALOG &&
259 nv_partner->dcb->type == OUTPUT_TMDS) ||
260 (nv_encoder->dcb->type == OUTPUT_TMDS &&
261 nv_partner->dcb->type == OUTPUT_ANALOG))) {
262 if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
263 type = OUTPUT_TMDS;
264 else
265 type = OUTPUT_ANALOG;
266
267 nv_encoder = find_encoder(connector, type);
268 }
269
270 nouveau_connector_set_encoder(connector, nv_encoder);
271 return connector_status_connected;
272 }
273
274 nv_encoder = nouveau_connector_of_detect(connector);
275 if (nv_encoder) {
276 nouveau_connector_set_encoder(connector, nv_encoder);
277 return connector_status_connected;
278 }
279
280 detect_analog:
281 nv_encoder = find_encoder(connector, OUTPUT_ANALOG);
282 if (!nv_encoder && !nouveau_tv_disable)
283 nv_encoder = find_encoder(connector, OUTPUT_TV);
284 if (nv_encoder && force) {
285 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
286 struct drm_encoder_helper_funcs *helper =
287 encoder->helper_private;
288
289 if (helper->detect(encoder, connector) ==
290 connector_status_connected) {
291 nouveau_connector_set_encoder(connector, nv_encoder);
292 return connector_status_connected;
293 }
294
295 }
296
297 return connector_status_disconnected;
298 }
299
300 static enum drm_connector_status
nouveau_connector_detect_lvds(struct drm_connector * connector,bool force)301 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
302 {
303 struct drm_device *dev = connector->dev;
304 struct drm_nouveau_private *dev_priv = dev->dev_private;
305 struct nouveau_connector *nv_connector = nouveau_connector(connector);
306 struct nouveau_encoder *nv_encoder = NULL;
307 enum drm_connector_status status = connector_status_disconnected;
308
309 /* Cleanup the previous EDID block. */
310 if (nv_connector->edid) {
311 drm_mode_connector_update_edid_property(connector, NULL);
312 kfree(nv_connector->edid);
313 nv_connector->edid = NULL;
314 }
315
316 nv_encoder = find_encoder(connector, OUTPUT_LVDS);
317 if (!nv_encoder)
318 return connector_status_disconnected;
319
320 /* Try retrieving EDID via DDC */
321 if (!dev_priv->vbios.fp_no_ddc) {
322 status = nouveau_connector_detect(connector, force);
323 if (status == connector_status_connected)
324 goto out;
325 }
326
327 /* On some laptops (Sony, i'm looking at you) there appears to
328 * be no direct way of accessing the panel's EDID. The only
329 * option available to us appears to be to ask ACPI for help..
330 *
331 * It's important this check's before trying straps, one of the
332 * said manufacturer's laptops are configured in such a way
333 * the nouveau decides an entry in the VBIOS FP mode table is
334 * valid - it's not (rh#613284)
335 */
336 if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
337 if (!nouveau_acpi_edid(dev, connector)) {
338 status = connector_status_connected;
339 goto out;
340 }
341 }
342
343 /* If no EDID found above, and the VBIOS indicates a hardcoded
344 * modeline is avalilable for the panel, set it as the panel's
345 * native mode and exit.
346 */
347 if (nouveau_bios_fp_mode(dev, NULL) && (dev_priv->vbios.fp_no_ddc ||
348 nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
349 status = connector_status_connected;
350 goto out;
351 }
352
353 /* Still nothing, some VBIOS images have a hardcoded EDID block
354 * stored for the panel stored in them.
355 */
356 if (!dev_priv->vbios.fp_no_ddc) {
357 struct edid *edid =
358 (struct edid *)nouveau_bios_embedded_edid(dev);
359 if (edid) {
360 nv_connector->edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
361 *(nv_connector->edid) = *edid;
362 status = connector_status_connected;
363 }
364 }
365
366 out:
367 #if defined(CONFIG_ACPI_BUTTON) || \
368 (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
369 if (status == connector_status_connected &&
370 !nouveau_ignorelid && !acpi_lid_open())
371 status = connector_status_unknown;
372 #endif
373
374 drm_mode_connector_update_edid_property(connector, nv_connector->edid);
375 nouveau_connector_set_encoder(connector, nv_encoder);
376 return status;
377 }
378
379 static void
nouveau_connector_force(struct drm_connector * connector)380 nouveau_connector_force(struct drm_connector *connector)
381 {
382 struct nouveau_connector *nv_connector = nouveau_connector(connector);
383 struct nouveau_encoder *nv_encoder;
384 int type;
385
386 if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
387 if (connector->force == DRM_FORCE_ON_DIGITAL)
388 type = OUTPUT_TMDS;
389 else
390 type = OUTPUT_ANALOG;
391 } else
392 type = OUTPUT_ANY;
393
394 nv_encoder = find_encoder(connector, type);
395 if (!nv_encoder) {
396 NV_ERROR(connector->dev, "can't find encoder to force %s on!\n",
397 drm_get_connector_name(connector));
398 connector->status = connector_status_disconnected;
399 return;
400 }
401
402 nouveau_connector_set_encoder(connector, nv_encoder);
403 }
404
405 static int
nouveau_connector_set_property(struct drm_connector * connector,struct drm_property * property,uint64_t value)406 nouveau_connector_set_property(struct drm_connector *connector,
407 struct drm_property *property, uint64_t value)
408 {
409 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
410 struct nouveau_display_engine *disp = &dev_priv->engine.display;
411 struct nouveau_connector *nv_connector = nouveau_connector(connector);
412 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
413 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
414 struct drm_device *dev = connector->dev;
415 struct nouveau_crtc *nv_crtc;
416 int ret;
417
418 nv_crtc = NULL;
419 if (connector->encoder && connector->encoder->crtc)
420 nv_crtc = nouveau_crtc(connector->encoder->crtc);
421
422 /* Scaling mode */
423 if (property == dev->mode_config.scaling_mode_property) {
424 bool modeset = false;
425
426 switch (value) {
427 case DRM_MODE_SCALE_NONE:
428 case DRM_MODE_SCALE_FULLSCREEN:
429 case DRM_MODE_SCALE_CENTER:
430 case DRM_MODE_SCALE_ASPECT:
431 break;
432 default:
433 return -EINVAL;
434 }
435
436 /* LVDS always needs gpu scaling */
437 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS &&
438 value == DRM_MODE_SCALE_NONE)
439 return -EINVAL;
440
441 /* Changing between GPU and panel scaling requires a full
442 * modeset
443 */
444 if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) ||
445 (value == DRM_MODE_SCALE_NONE))
446 modeset = true;
447 nv_connector->scaling_mode = value;
448
449 if (!nv_crtc)
450 return 0;
451
452 if (modeset || !nv_crtc->set_scale) {
453 ret = drm_crtc_helper_set_mode(&nv_crtc->base,
454 &nv_crtc->base.mode,
455 nv_crtc->base.x,
456 nv_crtc->base.y, NULL);
457 if (!ret)
458 return -EINVAL;
459 } else {
460 ret = nv_crtc->set_scale(nv_crtc, true);
461 if (ret)
462 return ret;
463 }
464
465 return 0;
466 }
467
468 /* Underscan */
469 if (property == disp->underscan_property) {
470 if (nv_connector->underscan != value) {
471 nv_connector->underscan = value;
472 if (!nv_crtc || !nv_crtc->set_scale)
473 return 0;
474
475 return nv_crtc->set_scale(nv_crtc, true);
476 }
477
478 return 0;
479 }
480
481 if (property == disp->underscan_hborder_property) {
482 if (nv_connector->underscan_hborder != value) {
483 nv_connector->underscan_hborder = value;
484 if (!nv_crtc || !nv_crtc->set_scale)
485 return 0;
486
487 return nv_crtc->set_scale(nv_crtc, true);
488 }
489
490 return 0;
491 }
492
493 if (property == disp->underscan_vborder_property) {
494 if (nv_connector->underscan_vborder != value) {
495 nv_connector->underscan_vborder = value;
496 if (!nv_crtc || !nv_crtc->set_scale)
497 return 0;
498
499 return nv_crtc->set_scale(nv_crtc, true);
500 }
501
502 return 0;
503 }
504
505 /* Dithering */
506 if (property == disp->dithering_mode) {
507 nv_connector->dithering_mode = value;
508 if (!nv_crtc || !nv_crtc->set_dither)
509 return 0;
510
511 return nv_crtc->set_dither(nv_crtc, true);
512 }
513
514 if (property == disp->dithering_depth) {
515 nv_connector->dithering_depth = value;
516 if (!nv_crtc || !nv_crtc->set_dither)
517 return 0;
518
519 return nv_crtc->set_dither(nv_crtc, true);
520 }
521
522 if (nv_encoder && nv_encoder->dcb->type == OUTPUT_TV)
523 return get_slave_funcs(encoder)->set_property(
524 encoder, connector, property, value);
525
526 return -EINVAL;
527 }
528
529 static struct drm_display_mode *
nouveau_connector_native_mode(struct drm_connector * connector)530 nouveau_connector_native_mode(struct drm_connector *connector)
531 {
532 struct drm_connector_helper_funcs *helper = connector->helper_private;
533 struct nouveau_connector *nv_connector = nouveau_connector(connector);
534 struct drm_device *dev = connector->dev;
535 struct drm_display_mode *mode, *largest = NULL;
536 int high_w = 0, high_h = 0, high_v = 0;
537
538 list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
539 mode->vrefresh = drm_mode_vrefresh(mode);
540 if (helper->mode_valid(connector, mode) != MODE_OK ||
541 (mode->flags & DRM_MODE_FLAG_INTERLACE))
542 continue;
543
544 /* Use preferred mode if there is one.. */
545 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
546 NV_DEBUG_KMS(dev, "native mode from preferred\n");
547 return drm_mode_duplicate(dev, mode);
548 }
549
550 /* Otherwise, take the resolution with the largest width, then
551 * height, then vertical refresh
552 */
553 if (mode->hdisplay < high_w)
554 continue;
555
556 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
557 continue;
558
559 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
560 mode->vrefresh < high_v)
561 continue;
562
563 high_w = mode->hdisplay;
564 high_h = mode->vdisplay;
565 high_v = mode->vrefresh;
566 largest = mode;
567 }
568
569 NV_DEBUG_KMS(dev, "native mode from largest: %dx%d@%d\n",
570 high_w, high_h, high_v);
571 return largest ? drm_mode_duplicate(dev, largest) : NULL;
572 }
573
574 struct moderec {
575 int hdisplay;
576 int vdisplay;
577 };
578
579 static struct moderec scaler_modes[] = {
580 { 1920, 1200 },
581 { 1920, 1080 },
582 { 1680, 1050 },
583 { 1600, 1200 },
584 { 1400, 1050 },
585 { 1280, 1024 },
586 { 1280, 960 },
587 { 1152, 864 },
588 { 1024, 768 },
589 { 800, 600 },
590 { 720, 400 },
591 { 640, 480 },
592 { 640, 400 },
593 { 640, 350 },
594 {}
595 };
596
597 static int
nouveau_connector_scaler_modes_add(struct drm_connector * connector)598 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
599 {
600 struct nouveau_connector *nv_connector = nouveau_connector(connector);
601 struct drm_display_mode *native = nv_connector->native_mode, *m;
602 struct drm_device *dev = connector->dev;
603 struct moderec *mode = &scaler_modes[0];
604 int modes = 0;
605
606 if (!native)
607 return 0;
608
609 while (mode->hdisplay) {
610 if (mode->hdisplay <= native->hdisplay &&
611 mode->vdisplay <= native->vdisplay) {
612 m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
613 drm_mode_vrefresh(native), false,
614 false, false);
615 if (!m)
616 continue;
617
618 m->type |= DRM_MODE_TYPE_DRIVER;
619
620 drm_mode_probed_add(connector, m);
621 modes++;
622 }
623
624 mode++;
625 }
626
627 return modes;
628 }
629
630 static void
nouveau_connector_detect_depth(struct drm_connector * connector)631 nouveau_connector_detect_depth(struct drm_connector *connector)
632 {
633 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
634 struct nouveau_connector *nv_connector = nouveau_connector(connector);
635 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
636 struct nvbios *bios = &dev_priv->vbios;
637 struct drm_display_mode *mode = nv_connector->native_mode;
638 bool duallink;
639
640 /* if the edid is feeling nice enough to provide this info, use it */
641 if (nv_connector->edid && connector->display_info.bpc)
642 return;
643
644 /* if not, we're out of options unless we're LVDS, default to 6bpc */
645 connector->display_info.bpc = 6;
646 if (nv_encoder->dcb->type != OUTPUT_LVDS)
647 return;
648
649 /* LVDS: panel straps */
650 if (bios->fp_no_ddc) {
651 if (bios->fp.if_is_24bit)
652 connector->display_info.bpc = 8;
653 return;
654 }
655
656 /* LVDS: DDC panel, need to first determine the number of links to
657 * know which if_is_24bit flag to check...
658 */
659 if (nv_connector->edid &&
660 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
661 duallink = ((u8 *)nv_connector->edid)[121] == 2;
662 else
663 duallink = mode->clock >= bios->fp.duallink_transition_clk;
664
665 if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
666 ( duallink && (bios->fp.strapless_is_24bit & 2)))
667 connector->display_info.bpc = 8;
668 }
669
670 static int
nouveau_connector_get_modes(struct drm_connector * connector)671 nouveau_connector_get_modes(struct drm_connector *connector)
672 {
673 struct drm_device *dev = connector->dev;
674 struct drm_nouveau_private *dev_priv = dev->dev_private;
675 struct nouveau_connector *nv_connector = nouveau_connector(connector);
676 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
677 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
678 int ret = 0;
679
680 /* destroy the native mode, the attached monitor could have changed.
681 */
682 if (nv_connector->native_mode) {
683 drm_mode_destroy(dev, nv_connector->native_mode);
684 nv_connector->native_mode = NULL;
685 }
686
687 if (nv_connector->edid)
688 ret = drm_add_edid_modes(connector, nv_connector->edid);
689 else
690 if (nv_encoder->dcb->type == OUTPUT_LVDS &&
691 (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
692 dev_priv->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
693 struct drm_display_mode mode;
694
695 nouveau_bios_fp_mode(dev, &mode);
696 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
697 }
698
699 /* Determine display colour depth for everything except LVDS now,
700 * DP requires this before mode_valid() is called.
701 */
702 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
703 nouveau_connector_detect_depth(connector);
704
705 /* Find the native mode if this is a digital panel, if we didn't
706 * find any modes through DDC previously add the native mode to
707 * the list of modes.
708 */
709 if (!nv_connector->native_mode)
710 nv_connector->native_mode =
711 nouveau_connector_native_mode(connector);
712 if (ret == 0 && nv_connector->native_mode) {
713 struct drm_display_mode *mode;
714
715 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
716 drm_mode_probed_add(connector, mode);
717 ret = 1;
718 }
719
720 /* Determine LVDS colour depth, must happen after determining
721 * "native" mode as some VBIOS tables require us to use the
722 * pixel clock as part of the lookup...
723 */
724 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
725 nouveau_connector_detect_depth(connector);
726
727 if (nv_encoder->dcb->type == OUTPUT_TV)
728 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
729
730 if (nv_connector->type == DCB_CONNECTOR_LVDS ||
731 nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
732 nv_connector->type == DCB_CONNECTOR_eDP)
733 ret += nouveau_connector_scaler_modes_add(connector);
734
735 return ret;
736 }
737
738 static unsigned
get_tmds_link_bandwidth(struct drm_connector * connector)739 get_tmds_link_bandwidth(struct drm_connector *connector)
740 {
741 struct nouveau_connector *nv_connector = nouveau_connector(connector);
742 struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
743 struct dcb_entry *dcb = nv_connector->detected_encoder->dcb;
744
745 if (dcb->location != DCB_LOC_ON_CHIP ||
746 dev_priv->chipset >= 0x46)
747 return 165000;
748 else if (dev_priv->chipset >= 0x40)
749 return 155000;
750 else if (dev_priv->chipset >= 0x18)
751 return 135000;
752 else
753 return 112000;
754 }
755
756 static int
nouveau_connector_mode_valid(struct drm_connector * connector,struct drm_display_mode * mode)757 nouveau_connector_mode_valid(struct drm_connector *connector,
758 struct drm_display_mode *mode)
759 {
760 struct nouveau_connector *nv_connector = nouveau_connector(connector);
761 struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
762 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
763 unsigned min_clock = 25000, max_clock = min_clock;
764 unsigned clock = mode->clock;
765
766 switch (nv_encoder->dcb->type) {
767 case OUTPUT_LVDS:
768 if (nv_connector->native_mode &&
769 (mode->hdisplay > nv_connector->native_mode->hdisplay ||
770 mode->vdisplay > nv_connector->native_mode->vdisplay))
771 return MODE_PANEL;
772
773 min_clock = 0;
774 max_clock = 400000;
775 break;
776 case OUTPUT_TMDS:
777 max_clock = get_tmds_link_bandwidth(connector);
778 if (nouveau_duallink && nv_encoder->dcb->duallink_possible)
779 max_clock *= 2;
780 break;
781 case OUTPUT_ANALOG:
782 max_clock = nv_encoder->dcb->crtconf.maxfreq;
783 if (!max_clock)
784 max_clock = 350000;
785 break;
786 case OUTPUT_TV:
787 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
788 case OUTPUT_DP:
789 max_clock = nv_encoder->dp.link_nr;
790 max_clock *= nv_encoder->dp.link_bw;
791 clock = clock * (connector->display_info.bpc * 3) / 10;
792 break;
793 default:
794 BUG_ON(1);
795 return MODE_BAD;
796 }
797
798 if (clock < min_clock)
799 return MODE_CLOCK_LOW;
800
801 if (clock > max_clock)
802 return MODE_CLOCK_HIGH;
803
804 return MODE_OK;
805 }
806
807 static struct drm_encoder *
nouveau_connector_best_encoder(struct drm_connector * connector)808 nouveau_connector_best_encoder(struct drm_connector *connector)
809 {
810 struct nouveau_connector *nv_connector = nouveau_connector(connector);
811
812 if (nv_connector->detected_encoder)
813 return to_drm_encoder(nv_connector->detected_encoder);
814
815 return NULL;
816 }
817
818 static const struct drm_connector_helper_funcs
819 nouveau_connector_helper_funcs = {
820 .get_modes = nouveau_connector_get_modes,
821 .mode_valid = nouveau_connector_mode_valid,
822 .best_encoder = nouveau_connector_best_encoder,
823 };
824
825 static const struct drm_connector_funcs
826 nouveau_connector_funcs = {
827 .dpms = drm_helper_connector_dpms,
828 .save = NULL,
829 .restore = NULL,
830 .detect = nouveau_connector_detect,
831 .destroy = nouveau_connector_destroy,
832 .fill_modes = drm_helper_probe_single_connector_modes,
833 .set_property = nouveau_connector_set_property,
834 .force = nouveau_connector_force
835 };
836
837 static const struct drm_connector_funcs
838 nouveau_connector_funcs_lvds = {
839 .dpms = drm_helper_connector_dpms,
840 .save = NULL,
841 .restore = NULL,
842 .detect = nouveau_connector_detect_lvds,
843 .destroy = nouveau_connector_destroy,
844 .fill_modes = drm_helper_probe_single_connector_modes,
845 .set_property = nouveau_connector_set_property,
846 .force = nouveau_connector_force
847 };
848
849 static int
drm_conntype_from_dcb(enum dcb_connector_type dcb)850 drm_conntype_from_dcb(enum dcb_connector_type dcb)
851 {
852 switch (dcb) {
853 case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA;
854 case DCB_CONNECTOR_TV_0 :
855 case DCB_CONNECTOR_TV_1 :
856 case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV;
857 case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII;
858 case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID;
859 case DCB_CONNECTOR_LVDS :
860 case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
861 case DCB_CONNECTOR_DP : return DRM_MODE_CONNECTOR_DisplayPort;
862 case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP;
863 case DCB_CONNECTOR_HDMI_0 :
864 case DCB_CONNECTOR_HDMI_1 : return DRM_MODE_CONNECTOR_HDMIA;
865 default:
866 break;
867 }
868
869 return DRM_MODE_CONNECTOR_Unknown;
870 }
871
872 struct drm_connector *
nouveau_connector_create(struct drm_device * dev,int index)873 nouveau_connector_create(struct drm_device *dev, int index)
874 {
875 const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
876 struct drm_nouveau_private *dev_priv = dev->dev_private;
877 struct nouveau_display_engine *disp = &dev_priv->engine.display;
878 struct nouveau_connector *nv_connector = NULL;
879 struct drm_connector *connector;
880 int type, ret = 0;
881 bool dummy;
882
883 NV_DEBUG_KMS(dev, "\n");
884
885 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
886 nv_connector = nouveau_connector(connector);
887 if (nv_connector->index == index)
888 return connector;
889 }
890
891 nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
892 if (!nv_connector)
893 return ERR_PTR(-ENOMEM);
894
895 connector = &nv_connector->base;
896 nv_connector->index = index;
897
898 /* attempt to parse vbios connector type and hotplug gpio */
899 nv_connector->dcb = dcb_conn(dev, index);
900 if (nv_connector->dcb) {
901 static const u8 hpd[16] = {
902 0xff, 0x07, 0x08, 0xff, 0xff, 0x51, 0x52, 0xff,
903 0xff, 0xff, 0xff, 0xff, 0xff, 0x5e, 0x5f, 0x60,
904 };
905
906 u32 entry = ROM16(nv_connector->dcb[0]);
907 if (dcb_conntab(dev)[3] >= 4)
908 entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
909
910 nv_connector->hpd = ffs((entry & 0x07033000) >> 12);
911 nv_connector->hpd = hpd[nv_connector->hpd];
912
913 nv_connector->type = nv_connector->dcb[0];
914 if (drm_conntype_from_dcb(nv_connector->type) ==
915 DRM_MODE_CONNECTOR_Unknown) {
916 NV_WARN(dev, "unknown connector type %02x\n",
917 nv_connector->type);
918 nv_connector->type = DCB_CONNECTOR_NONE;
919 }
920
921 /* Gigabyte NX85T */
922 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
923 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
924 nv_connector->type = DCB_CONNECTOR_DVI_I;
925 }
926
927 /* Gigabyte GV-NX86T512H */
928 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
929 if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
930 nv_connector->type = DCB_CONNECTOR_DVI_I;
931 }
932 } else {
933 nv_connector->type = DCB_CONNECTOR_NONE;
934 nv_connector->hpd = DCB_GPIO_UNUSED;
935 }
936
937 /* no vbios data, or an unknown dcb connector type - attempt to
938 * figure out something suitable ourselves
939 */
940 if (nv_connector->type == DCB_CONNECTOR_NONE) {
941 struct drm_nouveau_private *dev_priv = dev->dev_private;
942 struct dcb_table *dcbt = &dev_priv->vbios.dcb;
943 u32 encoders = 0;
944 int i;
945
946 for (i = 0; i < dcbt->entries; i++) {
947 if (dcbt->entry[i].connector == nv_connector->index)
948 encoders |= (1 << dcbt->entry[i].type);
949 }
950
951 if (encoders & (1 << OUTPUT_DP)) {
952 if (encoders & (1 << OUTPUT_TMDS))
953 nv_connector->type = DCB_CONNECTOR_DP;
954 else
955 nv_connector->type = DCB_CONNECTOR_eDP;
956 } else
957 if (encoders & (1 << OUTPUT_TMDS)) {
958 if (encoders & (1 << OUTPUT_ANALOG))
959 nv_connector->type = DCB_CONNECTOR_DVI_I;
960 else
961 nv_connector->type = DCB_CONNECTOR_DVI_D;
962 } else
963 if (encoders & (1 << OUTPUT_ANALOG)) {
964 nv_connector->type = DCB_CONNECTOR_VGA;
965 } else
966 if (encoders & (1 << OUTPUT_LVDS)) {
967 nv_connector->type = DCB_CONNECTOR_LVDS;
968 } else
969 if (encoders & (1 << OUTPUT_TV)) {
970 nv_connector->type = DCB_CONNECTOR_TV_0;
971 }
972 }
973
974 type = drm_conntype_from_dcb(nv_connector->type);
975 if (type == DRM_MODE_CONNECTOR_LVDS) {
976 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
977 if (ret) {
978 NV_ERROR(dev, "Error parsing LVDS table, disabling\n");
979 kfree(nv_connector);
980 return ERR_PTR(ret);
981 }
982
983 funcs = &nouveau_connector_funcs_lvds;
984 } else {
985 funcs = &nouveau_connector_funcs;
986 }
987
988 /* defaults, will get overridden in detect() */
989 connector->interlace_allowed = false;
990 connector->doublescan_allowed = false;
991
992 drm_connector_init(dev, connector, funcs, type);
993 drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
994
995 /* Init DVI-I specific properties */
996 if (nv_connector->type == DCB_CONNECTOR_DVI_I)
997 drm_connector_attach_property(connector, dev->mode_config.dvi_i_subconnector_property, 0);
998
999 /* Add overscan compensation options to digital outputs */
1000 if (disp->underscan_property &&
1001 (nv_connector->type == DCB_CONNECTOR_DVI_D ||
1002 nv_connector->type == DCB_CONNECTOR_DVI_I ||
1003 nv_connector->type == DCB_CONNECTOR_HDMI_0 ||
1004 nv_connector->type == DCB_CONNECTOR_HDMI_1 ||
1005 nv_connector->type == DCB_CONNECTOR_DP)) {
1006 drm_connector_attach_property(connector,
1007 disp->underscan_property,
1008 UNDERSCAN_OFF);
1009 drm_connector_attach_property(connector,
1010 disp->underscan_hborder_property,
1011 0);
1012 drm_connector_attach_property(connector,
1013 disp->underscan_vborder_property,
1014 0);
1015 }
1016
1017 switch (nv_connector->type) {
1018 case DCB_CONNECTOR_VGA:
1019 if (dev_priv->card_type >= NV_50) {
1020 drm_connector_attach_property(connector,
1021 dev->mode_config.scaling_mode_property,
1022 nv_connector->scaling_mode);
1023 }
1024 /* fall-through */
1025 case DCB_CONNECTOR_TV_0:
1026 case DCB_CONNECTOR_TV_1:
1027 case DCB_CONNECTOR_TV_3:
1028 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1029 break;
1030 default:
1031 nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1032
1033 drm_connector_attach_property(connector,
1034 dev->mode_config.scaling_mode_property,
1035 nv_connector->scaling_mode);
1036 if (disp->dithering_mode) {
1037 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1038 drm_connector_attach_property(connector,
1039 disp->dithering_mode,
1040 nv_connector->dithering_mode);
1041 }
1042 if (disp->dithering_depth) {
1043 nv_connector->dithering_depth = DITHERING_DEPTH_AUTO;
1044 drm_connector_attach_property(connector,
1045 disp->dithering_depth,
1046 nv_connector->dithering_depth);
1047 }
1048 break;
1049 }
1050
1051 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1052 if (nv_connector->hpd != DCB_GPIO_UNUSED) {
1053 ret = nouveau_gpio_isr_add(dev, 0, nv_connector->hpd, 0xff,
1054 nouveau_connector_hotplug,
1055 connector);
1056 if (ret == 0)
1057 connector->polled = DRM_CONNECTOR_POLL_HPD;
1058 }
1059
1060 drm_sysfs_connector_add(connector);
1061 return connector;
1062 }
1063
1064 static void
nouveau_connector_hotplug(void * data,int plugged)1065 nouveau_connector_hotplug(void *data, int plugged)
1066 {
1067 struct drm_connector *connector = data;
1068 struct drm_device *dev = connector->dev;
1069
1070 NV_DEBUG(dev, "%splugged %s\n", plugged ? "" : "un",
1071 drm_get_connector_name(connector));
1072
1073 if (plugged)
1074 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
1075 else
1076 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
1077
1078 drm_helper_hpd_irq_event(dev);
1079 }
1080