Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
[sfrench/cifs-2.6.git] / drivers / gpu / drm / radeon / radeon_connectors.c
1 /*
2  * Copyright 2007-8 Advanced Micro Devices, Inc.
3  * Copyright 2008 Red Hat Inc.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be included in
13  * all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21  * OTHER DEALINGS IN THE SOFTWARE.
22  *
23  * Authors: Dave Airlie
24  *          Alex Deucher
25  */
26 #include "drmP.h"
27 #include "drm_edid.h"
28 #include "drm_crtc_helper.h"
29 #include "drm_fb_helper.h"
30 #include "radeon_drm.h"
31 #include "radeon.h"
32 #include "atom.h"
33
34 extern void
35 radeon_combios_connected_scratch_regs(struct drm_connector *connector,
36                                       struct drm_encoder *encoder,
37                                       bool connected);
38 extern void
39 radeon_atombios_connected_scratch_regs(struct drm_connector *connector,
40                                        struct drm_encoder *encoder,
41                                        bool connected);
42
43 static void radeon_property_change_mode(struct drm_encoder *encoder)
44 {
45         struct drm_crtc *crtc = encoder->crtc;
46
47         if (crtc && crtc->enabled) {
48                 drm_crtc_helper_set_mode(crtc, &crtc->mode,
49                                          crtc->x, crtc->y, crtc->fb);
50         }
51 }
52 static void
53 radeon_connector_update_scratch_regs(struct drm_connector *connector, enum drm_connector_status status)
54 {
55         struct drm_device *dev = connector->dev;
56         struct radeon_device *rdev = dev->dev_private;
57         struct drm_encoder *best_encoder = NULL;
58         struct drm_encoder *encoder = NULL;
59         struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
60         struct drm_mode_object *obj;
61         bool connected;
62         int i;
63
64         best_encoder = connector_funcs->best_encoder(connector);
65
66         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
67                 if (connector->encoder_ids[i] == 0)
68                         break;
69
70                 obj = drm_mode_object_find(connector->dev,
71                                            connector->encoder_ids[i],
72                                            DRM_MODE_OBJECT_ENCODER);
73                 if (!obj)
74                         continue;
75
76                 encoder = obj_to_encoder(obj);
77
78                 if ((encoder == best_encoder) && (status == connector_status_connected))
79                         connected = true;
80                 else
81                         connected = false;
82
83                 if (rdev->is_atom_bios)
84                         radeon_atombios_connected_scratch_regs(connector, encoder, connected);
85                 else
86                         radeon_combios_connected_scratch_regs(connector, encoder, connected);
87
88         }
89 }
90
91 struct drm_encoder *radeon_find_encoder(struct drm_connector *connector, int encoder_type)
92 {
93         struct drm_mode_object *obj;
94         struct drm_encoder *encoder;
95         int i;
96
97         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
98                 if (connector->encoder_ids[i] == 0)
99                         break;
100
101                 obj = drm_mode_object_find(connector->dev, connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER);
102                 if (!obj)
103                         continue;
104
105                 encoder = obj_to_encoder(obj);
106                 if (encoder->encoder_type == encoder_type)
107                         return encoder;
108         }
109         return NULL;
110 }
111
112 struct drm_encoder *radeon_best_single_encoder(struct drm_connector *connector)
113 {
114         int enc_id = connector->encoder_ids[0];
115         struct drm_mode_object *obj;
116         struct drm_encoder *encoder;
117
118         /* pick the encoder ids */
119         if (enc_id) {
120                 obj = drm_mode_object_find(connector->dev, enc_id, DRM_MODE_OBJECT_ENCODER);
121                 if (!obj)
122                         return NULL;
123                 encoder = obj_to_encoder(obj);
124                 return encoder;
125         }
126         return NULL;
127 }
128
129 /*
130  * radeon_connector_analog_encoder_conflict_solve
131  * - search for other connectors sharing this encoder
132  *   if priority is true, then set them disconnected if this is connected
133  *   if priority is false, set us disconnected if they are connected
134  */
135 static enum drm_connector_status
136 radeon_connector_analog_encoder_conflict_solve(struct drm_connector *connector,
137                                                struct drm_encoder *encoder,
138                                                enum drm_connector_status current_status,
139                                                bool priority)
140 {
141         struct drm_device *dev = connector->dev;
142         struct drm_connector *conflict;
143         int i;
144
145         list_for_each_entry(conflict, &dev->mode_config.connector_list, head) {
146                 if (conflict == connector)
147                         continue;
148
149                 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
150                         if (conflict->encoder_ids[i] == 0)
151                                 break;
152
153                         /* if the IDs match */
154                         if (conflict->encoder_ids[i] == encoder->base.id) {
155                                 if (conflict->status != connector_status_connected)
156                                         continue;
157
158                                 if (priority == true) {
159                                         DRM_INFO("1: conflicting encoders switching off %s\n", drm_get_connector_name(conflict));
160                                         DRM_INFO("in favor of %s\n", drm_get_connector_name(connector));
161                                         conflict->status = connector_status_disconnected;
162                                         radeon_connector_update_scratch_regs(conflict, connector_status_disconnected);
163                                 } else {
164                                         DRM_INFO("2: conflicting encoders switching off %s\n", drm_get_connector_name(connector));
165                                         DRM_INFO("in favor of %s\n", drm_get_connector_name(conflict));
166                                         current_status = connector_status_disconnected;
167                                 }
168                                 break;
169                         }
170                 }
171         }
172         return current_status;
173
174 }
175
176 static struct drm_display_mode *radeon_fp_native_mode(struct drm_encoder *encoder)
177 {
178         struct drm_device *dev = encoder->dev;
179         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
180         struct drm_display_mode *mode = NULL;
181         struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
182
183         if (native_mode->hdisplay != 0 &&
184             native_mode->vdisplay != 0 &&
185             native_mode->clock != 0) {
186                 mode = drm_mode_duplicate(dev, native_mode);
187                 mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
188                 drm_mode_set_name(mode);
189
190                 DRM_DEBUG("Adding native panel mode %s\n", mode->name);
191         }
192         return mode;
193 }
194
195 static void radeon_add_common_modes(struct drm_encoder *encoder, struct drm_connector *connector)
196 {
197         struct drm_device *dev = encoder->dev;
198         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
199         struct drm_display_mode *mode = NULL;
200         struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
201         int i;
202         struct mode_size {
203                 int w;
204                 int h;
205         } common_modes[17] = {
206                 { 640,  480},
207                 { 720,  480},
208                 { 800,  600},
209                 { 848,  480},
210                 {1024,  768},
211                 {1152,  768},
212                 {1280,  720},
213                 {1280,  800},
214                 {1280,  854},
215                 {1280,  960},
216                 {1280, 1024},
217                 {1440,  900},
218                 {1400, 1050},
219                 {1680, 1050},
220                 {1600, 1200},
221                 {1920, 1080},
222                 {1920, 1200}
223         };
224
225         for (i = 0; i < 17; i++) {
226                 if (radeon_encoder->devices & (ATOM_DEVICE_TV_SUPPORT)) {
227                         if (common_modes[i].w > 1024 ||
228                             common_modes[i].h > 768)
229                                 continue;
230                 }
231                 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
232                         if (common_modes[i].w > native_mode->hdisplay ||
233                             common_modes[i].h > native_mode->vdisplay ||
234                             (common_modes[i].w == native_mode->hdisplay &&
235                              common_modes[i].h == native_mode->vdisplay))
236                                 continue;
237                 }
238                 if (common_modes[i].w < 320 || common_modes[i].h < 200)
239                         continue;
240
241                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h, 60, false, false, false);
242                 drm_mode_probed_add(connector, mode);
243         }
244 }
245
246 int radeon_connector_set_property(struct drm_connector *connector, struct drm_property *property,
247                                   uint64_t val)
248 {
249         struct drm_device *dev = connector->dev;
250         struct radeon_device *rdev = dev->dev_private;
251         struct drm_encoder *encoder;
252         struct radeon_encoder *radeon_encoder;
253
254         if (property == rdev->mode_info.coherent_mode_property) {
255                 struct radeon_encoder_atom_dig *dig;
256
257                 /* need to find digital encoder on connector */
258                 encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
259                 if (!encoder)
260                         return 0;
261
262                 radeon_encoder = to_radeon_encoder(encoder);
263
264                 if (!radeon_encoder->enc_priv)
265                         return 0;
266
267                 dig = radeon_encoder->enc_priv;
268                 dig->coherent_mode = val ? true : false;
269                 radeon_property_change_mode(&radeon_encoder->base);
270         }
271
272         if (property == rdev->mode_info.tv_std_property) {
273                 encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TVDAC);
274                 if (!encoder) {
275                         encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_DAC);
276                 }
277
278                 if (!encoder)
279                         return 0;
280
281                 radeon_encoder = to_radeon_encoder(encoder);
282                 if (!radeon_encoder->enc_priv)
283                         return 0;
284                 if (rdev->is_atom_bios) {
285                         struct radeon_encoder_atom_dac *dac_int;
286                         dac_int = radeon_encoder->enc_priv;
287                         dac_int->tv_std = val;
288                 } else {
289                         struct radeon_encoder_tv_dac *dac_int;
290                         dac_int = radeon_encoder->enc_priv;
291                         dac_int->tv_std = val;
292                 }
293                 radeon_property_change_mode(&radeon_encoder->base);
294         }
295
296         if (property == rdev->mode_info.load_detect_property) {
297                 struct radeon_connector *radeon_connector =
298                         to_radeon_connector(connector);
299
300                 if (val == 0)
301                         radeon_connector->dac_load_detect = false;
302                 else
303                         radeon_connector->dac_load_detect = true;
304         }
305
306         if (property == rdev->mode_info.tmds_pll_property) {
307                 struct radeon_encoder_int_tmds *tmds = NULL;
308                 bool ret = false;
309                 /* need to find digital encoder on connector */
310                 encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
311                 if (!encoder)
312                         return 0;
313
314                 radeon_encoder = to_radeon_encoder(encoder);
315
316                 tmds = radeon_encoder->enc_priv;
317                 if (!tmds)
318                         return 0;
319
320                 if (val == 0) {
321                         if (rdev->is_atom_bios)
322                                 ret = radeon_atombios_get_tmds_info(radeon_encoder, tmds);
323                         else
324                                 ret = radeon_legacy_get_tmds_info_from_combios(radeon_encoder, tmds);
325                 }
326                 if (val == 1 || ret == false) {
327                         radeon_legacy_get_tmds_info_from_table(radeon_encoder, tmds);
328                 }
329                 radeon_property_change_mode(&radeon_encoder->base);
330         }
331
332         return 0;
333 }
334
335 static void radeon_fixup_lvds_native_mode(struct drm_encoder *encoder,
336                                           struct drm_connector *connector)
337 {
338         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
339         struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
340
341         /* Try to get native mode details from EDID if necessary */
342         if (!native_mode->clock) {
343                 struct drm_display_mode *t, *mode;
344
345                 list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
346                         if (mode->hdisplay == native_mode->hdisplay &&
347                             mode->vdisplay == native_mode->vdisplay) {
348                                 *native_mode = *mode;
349                                 drm_mode_set_crtcinfo(native_mode, CRTC_INTERLACE_HALVE_V);
350                                 DRM_INFO("Determined LVDS native mode details from EDID\n");
351                                 break;
352                         }
353                 }
354         }
355         if (!native_mode->clock) {
356                 DRM_INFO("No LVDS native mode details, disabling RMX\n");
357                 radeon_encoder->rmx_type = RMX_OFF;
358         }
359 }
360
361 static int radeon_lvds_get_modes(struct drm_connector *connector)
362 {
363         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
364         struct drm_encoder *encoder;
365         int ret = 0;
366         struct drm_display_mode *mode;
367
368         if (radeon_connector->ddc_bus) {
369                 ret = radeon_ddc_get_modes(radeon_connector);
370                 if (ret > 0) {
371                         encoder = radeon_best_single_encoder(connector);
372                         if (encoder) {
373                                 radeon_fixup_lvds_native_mode(encoder, connector);
374                                 /* add scaled modes */
375                                 radeon_add_common_modes(encoder, connector);
376                         }
377                         return ret;
378                 }
379         }
380
381         encoder = radeon_best_single_encoder(connector);
382         if (!encoder)
383                 return 0;
384
385         /* we have no EDID modes */
386         mode = radeon_fp_native_mode(encoder);
387         if (mode) {
388                 ret = 1;
389                 drm_mode_probed_add(connector, mode);
390                 /* add scaled modes */
391                 radeon_add_common_modes(encoder, connector);
392         }
393
394         return ret;
395 }
396
397 static int radeon_lvds_mode_valid(struct drm_connector *connector,
398                                   struct drm_display_mode *mode)
399 {
400         struct drm_encoder *encoder = radeon_best_single_encoder(connector);
401
402         if ((mode->hdisplay < 320) || (mode->vdisplay < 240))
403                 return MODE_PANEL;
404
405         if (encoder) {
406                 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
407                 struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
408
409                 /* AVIVO hardware supports downscaling modes larger than the panel
410                  * to the panel size, but I'm not sure this is desirable.
411                  */
412                 if ((mode->hdisplay > native_mode->hdisplay) ||
413                     (mode->vdisplay > native_mode->vdisplay))
414                         return MODE_PANEL;
415
416                 /* if scaling is disabled, block non-native modes */
417                 if (radeon_encoder->rmx_type == RMX_OFF) {
418                         if ((mode->hdisplay != native_mode->hdisplay) ||
419                             (mode->vdisplay != native_mode->vdisplay))
420                                 return MODE_PANEL;
421                 }
422         }
423
424         return MODE_OK;
425 }
426
427 static enum drm_connector_status radeon_lvds_detect(struct drm_connector *connector)
428 {
429         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
430         struct drm_encoder *encoder = radeon_best_single_encoder(connector);
431         enum drm_connector_status ret = connector_status_disconnected;
432
433         if (encoder) {
434                 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
435                 struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
436
437                 /* check if panel is valid */
438                 if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240)
439                         ret = connector_status_connected;
440
441         }
442
443         /* check for edid as well */
444         if (radeon_connector->edid)
445                 ret = connector_status_connected;
446         else {
447                 if (radeon_connector->ddc_bus) {
448                         radeon_i2c_do_lock(radeon_connector, 1);
449                         radeon_connector->edid = drm_get_edid(&radeon_connector->base,
450                                                               &radeon_connector->ddc_bus->adapter);
451                         radeon_i2c_do_lock(radeon_connector, 0);
452                         if (radeon_connector->edid)
453                                 ret = connector_status_connected;
454                 }
455         }
456         /* check acpi lid status ??? */
457
458         radeon_connector_update_scratch_regs(connector, ret);
459         return ret;
460 }
461
462 static void radeon_connector_destroy(struct drm_connector *connector)
463 {
464         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
465
466         if (radeon_connector->ddc_bus)
467                 radeon_i2c_destroy(radeon_connector->ddc_bus);
468         if (radeon_connector->edid)
469                 kfree(radeon_connector->edid);
470         kfree(radeon_connector->con_priv);
471         drm_sysfs_connector_remove(connector);
472         drm_connector_cleanup(connector);
473         kfree(connector);
474 }
475
476 static int radeon_lvds_set_property(struct drm_connector *connector,
477                                     struct drm_property *property,
478                                     uint64_t value)
479 {
480         struct drm_device *dev = connector->dev;
481         struct radeon_encoder *radeon_encoder;
482         enum radeon_rmx_type rmx_type;
483
484         DRM_DEBUG("\n");
485         if (property != dev->mode_config.scaling_mode_property)
486                 return 0;
487
488         if (connector->encoder)
489                 radeon_encoder = to_radeon_encoder(connector->encoder);
490         else {
491                 struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
492                 radeon_encoder = to_radeon_encoder(connector_funcs->best_encoder(connector));
493         }
494
495         switch (value) {
496         case DRM_MODE_SCALE_NONE: rmx_type = RMX_OFF; break;
497         case DRM_MODE_SCALE_CENTER: rmx_type = RMX_CENTER; break;
498         case DRM_MODE_SCALE_ASPECT: rmx_type = RMX_ASPECT; break;
499         default:
500         case DRM_MODE_SCALE_FULLSCREEN: rmx_type = RMX_FULL; break;
501         }
502         if (radeon_encoder->rmx_type == rmx_type)
503                 return 0;
504
505         radeon_encoder->rmx_type = rmx_type;
506
507         radeon_property_change_mode(&radeon_encoder->base);
508         return 0;
509 }
510
511
512 struct drm_connector_helper_funcs radeon_lvds_connector_helper_funcs = {
513         .get_modes = radeon_lvds_get_modes,
514         .mode_valid = radeon_lvds_mode_valid,
515         .best_encoder = radeon_best_single_encoder,
516 };
517
518 struct drm_connector_funcs radeon_lvds_connector_funcs = {
519         .dpms = drm_helper_connector_dpms,
520         .detect = radeon_lvds_detect,
521         .fill_modes = drm_helper_probe_single_connector_modes,
522         .destroy = radeon_connector_destroy,
523         .set_property = radeon_lvds_set_property,
524 };
525
526 static int radeon_vga_get_modes(struct drm_connector *connector)
527 {
528         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
529         int ret;
530
531         ret = radeon_ddc_get_modes(radeon_connector);
532
533         return ret;
534 }
535
536 static int radeon_vga_mode_valid(struct drm_connector *connector,
537                                   struct drm_display_mode *mode)
538 {
539         /* XXX check mode bandwidth */
540         /* XXX verify against max DAC output frequency */
541         return MODE_OK;
542 }
543
544 static enum drm_connector_status radeon_vga_detect(struct drm_connector *connector)
545 {
546         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
547         struct drm_encoder *encoder;
548         struct drm_encoder_helper_funcs *encoder_funcs;
549         bool dret;
550         enum drm_connector_status ret = connector_status_disconnected;
551
552         encoder = radeon_best_single_encoder(connector);
553         if (!encoder)
554                 ret = connector_status_disconnected;
555
556         radeon_i2c_do_lock(radeon_connector, 1);
557         dret = radeon_ddc_probe(radeon_connector);
558         radeon_i2c_do_lock(radeon_connector, 0);
559         if (dret) {
560                 if (radeon_connector->edid) {
561                         kfree(radeon_connector->edid);
562                         radeon_connector->edid = NULL;
563                 }
564                 radeon_i2c_do_lock(radeon_connector, 1);
565                 radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
566                 radeon_i2c_do_lock(radeon_connector, 0);
567
568                 if (!radeon_connector->edid) {
569                         DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
570                                         drm_get_connector_name(connector));
571                         ret = connector_status_connected;
572                 } else {
573                         radeon_connector->use_digital = !!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
574
575                         /* some oems have boards with separate digital and analog connectors
576                          * with a shared ddc line (often vga + hdmi)
577                          */
578                         if (radeon_connector->use_digital && radeon_connector->shared_ddc) {
579                                 kfree(radeon_connector->edid);
580                                 radeon_connector->edid = NULL;
581                                 ret = connector_status_disconnected;
582                         } else
583                                 ret = connector_status_connected;
584                 }
585         } else {
586                 if (radeon_connector->dac_load_detect) {
587                         encoder_funcs = encoder->helper_private;
588                         ret = encoder_funcs->detect(encoder, connector);
589                 }
590         }
591
592         if (ret == connector_status_connected)
593                 ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true);
594         radeon_connector_update_scratch_regs(connector, ret);
595         return ret;
596 }
597
598 struct drm_connector_helper_funcs radeon_vga_connector_helper_funcs = {
599         .get_modes = radeon_vga_get_modes,
600         .mode_valid = radeon_vga_mode_valid,
601         .best_encoder = radeon_best_single_encoder,
602 };
603
604 struct drm_connector_funcs radeon_vga_connector_funcs = {
605         .dpms = drm_helper_connector_dpms,
606         .detect = radeon_vga_detect,
607         .fill_modes = drm_helper_probe_single_connector_modes,
608         .destroy = radeon_connector_destroy,
609         .set_property = radeon_connector_set_property,
610 };
611
612 static int radeon_tv_get_modes(struct drm_connector *connector)
613 {
614         struct drm_device *dev = connector->dev;
615         struct radeon_device *rdev = dev->dev_private;
616         struct drm_display_mode *tv_mode;
617         struct drm_encoder *encoder;
618
619         encoder = radeon_best_single_encoder(connector);
620         if (!encoder)
621                 return 0;
622
623         /* avivo chips can scale any mode */
624         if (rdev->family >= CHIP_RS600)
625                 /* add scaled modes */
626                 radeon_add_common_modes(encoder, connector);
627         else {
628                 /* only 800x600 is supported right now on pre-avivo chips */
629                 tv_mode = drm_cvt_mode(dev, 800, 600, 60, false, false, false);
630                 tv_mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
631                 drm_mode_probed_add(connector, tv_mode);
632         }
633         return 1;
634 }
635
636 static int radeon_tv_mode_valid(struct drm_connector *connector,
637                                 struct drm_display_mode *mode)
638 {
639         if ((mode->hdisplay > 1024) || (mode->vdisplay > 768))
640                 return MODE_CLOCK_RANGE;
641         return MODE_OK;
642 }
643
644 static enum drm_connector_status radeon_tv_detect(struct drm_connector *connector)
645 {
646         struct drm_encoder *encoder;
647         struct drm_encoder_helper_funcs *encoder_funcs;
648         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
649         enum drm_connector_status ret = connector_status_disconnected;
650
651         if (!radeon_connector->dac_load_detect)
652                 return ret;
653
654         encoder = radeon_best_single_encoder(connector);
655         if (!encoder)
656                 ret = connector_status_disconnected;
657         else {
658                 encoder_funcs = encoder->helper_private;
659                 ret = encoder_funcs->detect(encoder, connector);
660         }
661         if (ret == connector_status_connected)
662                 ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, false);
663         radeon_connector_update_scratch_regs(connector, ret);
664         return ret;
665 }
666
667 struct drm_connector_helper_funcs radeon_tv_connector_helper_funcs = {
668         .get_modes = radeon_tv_get_modes,
669         .mode_valid = radeon_tv_mode_valid,
670         .best_encoder = radeon_best_single_encoder,
671 };
672
673 struct drm_connector_funcs radeon_tv_connector_funcs = {
674         .dpms = drm_helper_connector_dpms,
675         .detect = radeon_tv_detect,
676         .fill_modes = drm_helper_probe_single_connector_modes,
677         .destroy = radeon_connector_destroy,
678         .set_property = radeon_connector_set_property,
679 };
680
681 static int radeon_dvi_get_modes(struct drm_connector *connector)
682 {
683         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
684         int ret;
685
686         ret = radeon_ddc_get_modes(radeon_connector);
687         return ret;
688 }
689
690 /*
691  * DVI is complicated
692  * Do a DDC probe, if DDC probe passes, get the full EDID so
693  * we can do analog/digital monitor detection at this point.
694  * If the monitor is an analog monitor or we got no DDC,
695  * we need to find the DAC encoder object for this connector.
696  * If we got no DDC, we do load detection on the DAC encoder object.
697  * If we got analog DDC or load detection passes on the DAC encoder
698  * we have to check if this analog encoder is shared with anyone else (TV)
699  * if its shared we have to set the other connector to disconnected.
700  */
701 static enum drm_connector_status radeon_dvi_detect(struct drm_connector *connector)
702 {
703         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
704         struct drm_encoder *encoder = NULL;
705         struct drm_encoder_helper_funcs *encoder_funcs;
706         struct drm_mode_object *obj;
707         int i;
708         enum drm_connector_status ret = connector_status_disconnected;
709         bool dret;
710
711         radeon_i2c_do_lock(radeon_connector, 1);
712         dret = radeon_ddc_probe(radeon_connector);
713         radeon_i2c_do_lock(radeon_connector, 0);
714         if (dret) {
715                 if (radeon_connector->edid) {
716                         kfree(radeon_connector->edid);
717                         radeon_connector->edid = NULL;
718                 }
719                 radeon_i2c_do_lock(radeon_connector, 1);
720                 radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
721                 radeon_i2c_do_lock(radeon_connector, 0);
722
723                 if (!radeon_connector->edid) {
724                         DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
725                                         drm_get_connector_name(connector));
726                 } else {
727                         radeon_connector->use_digital = !!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
728
729                         /* some oems have boards with separate digital and analog connectors
730                          * with a shared ddc line (often vga + hdmi)
731                          */
732                         if ((!radeon_connector->use_digital) && radeon_connector->shared_ddc) {
733                                 kfree(radeon_connector->edid);
734                                 radeon_connector->edid = NULL;
735                                 ret = connector_status_disconnected;
736                         } else
737                                 ret = connector_status_connected;
738                 }
739         }
740
741         if ((ret == connector_status_connected) && (radeon_connector->use_digital == true))
742                 goto out;
743
744         /* find analog encoder */
745         if (radeon_connector->dac_load_detect) {
746                 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
747                         if (connector->encoder_ids[i] == 0)
748                                 break;
749
750                         obj = drm_mode_object_find(connector->dev,
751                                                    connector->encoder_ids[i],
752                                                    DRM_MODE_OBJECT_ENCODER);
753                         if (!obj)
754                                 continue;
755
756                         encoder = obj_to_encoder(obj);
757
758                         encoder_funcs = encoder->helper_private;
759                         if (encoder_funcs->detect) {
760                                 if (ret != connector_status_connected) {
761                                         ret = encoder_funcs->detect(encoder, connector);
762                                         if (ret == connector_status_connected) {
763                                                 radeon_connector->use_digital = false;
764                                         }
765                                 }
766                                 break;
767                         }
768                 }
769         }
770
771         if ((ret == connector_status_connected) && (radeon_connector->use_digital == false) &&
772             encoder) {
773                 ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true);
774         }
775
776 out:
777         /* updated in get modes as well since we need to know if it's analog or digital */
778         radeon_connector_update_scratch_regs(connector, ret);
779         return ret;
780 }
781
782 /* okay need to be smart in here about which encoder to pick */
783 struct drm_encoder *radeon_dvi_encoder(struct drm_connector *connector)
784 {
785         int enc_id = connector->encoder_ids[0];
786         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
787         struct drm_mode_object *obj;
788         struct drm_encoder *encoder;
789         int i;
790         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
791                 if (connector->encoder_ids[i] == 0)
792                         break;
793
794                 obj = drm_mode_object_find(connector->dev, connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER);
795                 if (!obj)
796                         continue;
797
798                 encoder = obj_to_encoder(obj);
799
800                 if (radeon_connector->use_digital == true) {
801                         if (encoder->encoder_type == DRM_MODE_ENCODER_TMDS)
802                                 return encoder;
803                 } else {
804                         if (encoder->encoder_type == DRM_MODE_ENCODER_DAC ||
805                             encoder->encoder_type == DRM_MODE_ENCODER_TVDAC)
806                                 return encoder;
807                 }
808         }
809
810         /* see if we have a default encoder  TODO */
811
812         /* then check use digitial */
813         /* pick the first one */
814         if (enc_id) {
815                 obj = drm_mode_object_find(connector->dev, enc_id, DRM_MODE_OBJECT_ENCODER);
816                 if (!obj)
817                         return NULL;
818                 encoder = obj_to_encoder(obj);
819                 return encoder;
820         }
821         return NULL;
822 }
823
824 static void radeon_dvi_force(struct drm_connector *connector)
825 {
826         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
827         if (connector->force == DRM_FORCE_ON)
828                 radeon_connector->use_digital = false;
829         if (connector->force == DRM_FORCE_ON_DIGITAL)
830                 radeon_connector->use_digital = true;
831 }
832
833 static int radeon_dvi_mode_valid(struct drm_connector *connector,
834                                   struct drm_display_mode *mode)
835 {
836         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
837
838         /* XXX check mode bandwidth */
839
840         if (radeon_connector->use_digital && (mode->clock > 165000)) {
841                 if ((radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I) ||
842                     (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) ||
843                     (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B))
844                         return MODE_OK;
845                 else
846                         return MODE_CLOCK_HIGH;
847         }
848         return MODE_OK;
849 }
850
851 struct drm_connector_helper_funcs radeon_dvi_connector_helper_funcs = {
852         .get_modes = radeon_dvi_get_modes,
853         .mode_valid = radeon_dvi_mode_valid,
854         .best_encoder = radeon_dvi_encoder,
855 };
856
857 struct drm_connector_funcs radeon_dvi_connector_funcs = {
858         .dpms = drm_helper_connector_dpms,
859         .detect = radeon_dvi_detect,
860         .fill_modes = drm_helper_probe_single_connector_modes,
861         .set_property = radeon_connector_set_property,
862         .destroy = radeon_connector_destroy,
863         .force = radeon_dvi_force,
864 };
865
866 void
867 radeon_add_atom_connector(struct drm_device *dev,
868                           uint32_t connector_id,
869                           uint32_t supported_device,
870                           int connector_type,
871                           struct radeon_i2c_bus_rec *i2c_bus,
872                           bool linkb,
873                           uint32_t igp_lane_info,
874                           uint16_t connector_object_id)
875 {
876         struct radeon_device *rdev = dev->dev_private;
877         struct drm_connector *connector;
878         struct radeon_connector *radeon_connector;
879         struct radeon_connector_atom_dig *radeon_dig_connector;
880         uint32_t subpixel_order = SubPixelNone;
881         bool shared_ddc = false;
882         int ret;
883
884         /* fixme - tv/cv/din */
885         if (connector_type == DRM_MODE_CONNECTOR_Unknown)
886                 return;
887
888         /* see if we already added it */
889         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
890                 radeon_connector = to_radeon_connector(connector);
891                 if (radeon_connector->connector_id == connector_id) {
892                         radeon_connector->devices |= supported_device;
893                         return;
894                 }
895                 if (radeon_connector->ddc_bus && i2c_bus->valid) {
896                         if (memcmp(&radeon_connector->ddc_bus->rec, i2c_bus,
897                                     sizeof(struct radeon_i2c_bus_rec)) == 0) {
898                                 radeon_connector->shared_ddc = true;
899                                 shared_ddc = true;
900                         }
901                 }
902         }
903
904         radeon_connector = kzalloc(sizeof(struct radeon_connector), GFP_KERNEL);
905         if (!radeon_connector)
906                 return;
907
908         connector = &radeon_connector->base;
909
910         radeon_connector->connector_id = connector_id;
911         radeon_connector->devices = supported_device;
912         radeon_connector->shared_ddc = shared_ddc;
913         radeon_connector->connector_object_id = connector_object_id;
914         switch (connector_type) {
915         case DRM_MODE_CONNECTOR_VGA:
916                 drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
917                 ret = drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
918                 if (ret)
919                         goto failed;
920                 if (i2c_bus->valid) {
921                         radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "VGA");
922                         if (!radeon_connector->ddc_bus)
923                                 goto failed;
924                 }
925                 radeon_connector->dac_load_detect = true;
926                 drm_connector_attach_property(&radeon_connector->base,
927                                               rdev->mode_info.load_detect_property,
928                                               1);
929                 break;
930         case DRM_MODE_CONNECTOR_DVIA:
931                 drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
932                 ret = drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
933                 if (ret)
934                         goto failed;
935                 if (i2c_bus->valid) {
936                         radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "DVI");
937                         if (!radeon_connector->ddc_bus)
938                                 goto failed;
939                 }
940                 radeon_connector->dac_load_detect = true;
941                 drm_connector_attach_property(&radeon_connector->base,
942                                               rdev->mode_info.load_detect_property,
943                                               1);
944                 break;
945         case DRM_MODE_CONNECTOR_DVII:
946         case DRM_MODE_CONNECTOR_DVID:
947                 radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
948                 if (!radeon_dig_connector)
949                         goto failed;
950                 radeon_dig_connector->linkb = linkb;
951                 radeon_dig_connector->igp_lane_info = igp_lane_info;
952                 radeon_connector->con_priv = radeon_dig_connector;
953                 drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
954                 ret = drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
955                 if (ret)
956                         goto failed;
957                 if (i2c_bus->valid) {
958                         radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "DVI");
959                         if (!radeon_connector->ddc_bus)
960                                 goto failed;
961                 }
962                 subpixel_order = SubPixelHorizontalRGB;
963                 drm_connector_attach_property(&radeon_connector->base,
964                                               rdev->mode_info.coherent_mode_property,
965                                               1);
966                 radeon_connector->dac_load_detect = true;
967                 drm_connector_attach_property(&radeon_connector->base,
968                                               rdev->mode_info.load_detect_property,
969                                               1);
970                 break;
971         case DRM_MODE_CONNECTOR_HDMIA:
972         case DRM_MODE_CONNECTOR_HDMIB:
973                 radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
974                 if (!radeon_dig_connector)
975                         goto failed;
976                 radeon_dig_connector->linkb = linkb;
977                 radeon_dig_connector->igp_lane_info = igp_lane_info;
978                 radeon_connector->con_priv = radeon_dig_connector;
979                 drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
980                 ret = drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
981                 if (ret)
982                         goto failed;
983                 if (i2c_bus->valid) {
984                         radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "HDMI");
985                         if (!radeon_connector->ddc_bus)
986                                 goto failed;
987                 }
988                 drm_connector_attach_property(&radeon_connector->base,
989                                               rdev->mode_info.coherent_mode_property,
990                                               1);
991                 subpixel_order = SubPixelHorizontalRGB;
992                 break;
993         case DRM_MODE_CONNECTOR_DisplayPort:
994                 radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
995                 if (!radeon_dig_connector)
996                         goto failed;
997                 radeon_dig_connector->linkb = linkb;
998                 radeon_dig_connector->igp_lane_info = igp_lane_info;
999                 radeon_connector->con_priv = radeon_dig_connector;
1000                 drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
1001                 ret = drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
1002                 if (ret)
1003                         goto failed;
1004                 if (i2c_bus->valid) {
1005                         radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "DP");
1006                         if (!radeon_connector->ddc_bus)
1007                                 goto failed;
1008                 }
1009                 subpixel_order = SubPixelHorizontalRGB;
1010                 break;
1011         case DRM_MODE_CONNECTOR_SVIDEO:
1012         case DRM_MODE_CONNECTOR_Composite:
1013         case DRM_MODE_CONNECTOR_9PinDIN:
1014                 if (radeon_tv == 1) {
1015                         drm_connector_init(dev, &radeon_connector->base, &radeon_tv_connector_funcs, connector_type);
1016                         ret = drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
1017                         if (ret)
1018                                 goto failed;
1019                         radeon_connector->dac_load_detect = true;
1020                         drm_connector_attach_property(&radeon_connector->base,
1021                                                       rdev->mode_info.load_detect_property,
1022                                                       1);
1023                 }
1024                 break;
1025         case DRM_MODE_CONNECTOR_LVDS:
1026                 radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
1027                 if (!radeon_dig_connector)
1028                         goto failed;
1029                 radeon_dig_connector->linkb = linkb;
1030                 radeon_dig_connector->igp_lane_info = igp_lane_info;
1031                 radeon_connector->con_priv = radeon_dig_connector;
1032                 drm_connector_init(dev, &radeon_connector->base, &radeon_lvds_connector_funcs, connector_type);
1033                 ret = drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
1034                 if (ret)
1035                         goto failed;
1036                 if (i2c_bus->valid) {
1037                         radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "LVDS");
1038                         if (!radeon_connector->ddc_bus)
1039                                 goto failed;
1040                 }
1041                 drm_mode_create_scaling_mode_property(dev);
1042                 drm_connector_attach_property(&radeon_connector->base,
1043                                               dev->mode_config.scaling_mode_property,
1044                                               DRM_MODE_SCALE_FULLSCREEN);
1045                 subpixel_order = SubPixelHorizontalRGB;
1046                 break;
1047         }
1048
1049         connector->display_info.subpixel_order = subpixel_order;
1050         drm_sysfs_connector_add(connector);
1051         return;
1052
1053 failed:
1054         if (radeon_connector->ddc_bus)
1055                 radeon_i2c_destroy(radeon_connector->ddc_bus);
1056         drm_connector_cleanup(connector);
1057         kfree(connector);
1058 }
1059
1060 void
1061 radeon_add_legacy_connector(struct drm_device *dev,
1062                             uint32_t connector_id,
1063                             uint32_t supported_device,
1064                             int connector_type,
1065                             struct radeon_i2c_bus_rec *i2c_bus,
1066                             uint16_t connector_object_id)
1067 {
1068         struct radeon_device *rdev = dev->dev_private;
1069         struct drm_connector *connector;
1070         struct radeon_connector *radeon_connector;
1071         uint32_t subpixel_order = SubPixelNone;
1072         int ret;
1073
1074         /* fixme - tv/cv/din */
1075         if (connector_type == DRM_MODE_CONNECTOR_Unknown)
1076                 return;
1077
1078         /* see if we already added it */
1079         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1080                 radeon_connector = to_radeon_connector(connector);
1081                 if (radeon_connector->connector_id == connector_id) {
1082                         radeon_connector->devices |= supported_device;
1083                         return;
1084                 }
1085         }
1086
1087         radeon_connector = kzalloc(sizeof(struct radeon_connector), GFP_KERNEL);
1088         if (!radeon_connector)
1089                 return;
1090
1091         connector = &radeon_connector->base;
1092
1093         radeon_connector->connector_id = connector_id;
1094         radeon_connector->devices = supported_device;
1095         radeon_connector->connector_object_id = connector_object_id;
1096         switch (connector_type) {
1097         case DRM_MODE_CONNECTOR_VGA:
1098                 drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
1099                 ret = drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
1100                 if (ret)
1101                         goto failed;
1102                 if (i2c_bus->valid) {
1103                         radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "VGA");
1104                         if (!radeon_connector->ddc_bus)
1105                                 goto failed;
1106                 }
1107                 radeon_connector->dac_load_detect = true;
1108                 drm_connector_attach_property(&radeon_connector->base,
1109                                               rdev->mode_info.load_detect_property,
1110                                               1);
1111                 break;
1112         case DRM_MODE_CONNECTOR_DVIA:
1113                 drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
1114                 ret = drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
1115                 if (ret)
1116                         goto failed;
1117                 if (i2c_bus->valid) {
1118                         radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "DVI");
1119                         if (!radeon_connector->ddc_bus)
1120                                 goto failed;
1121                 }
1122                 radeon_connector->dac_load_detect = true;
1123                 drm_connector_attach_property(&radeon_connector->base,
1124                                               rdev->mode_info.load_detect_property,
1125                                               1);
1126                 break;
1127         case DRM_MODE_CONNECTOR_DVII:
1128         case DRM_MODE_CONNECTOR_DVID:
1129                 drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
1130                 ret = drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
1131                 if (ret)
1132                         goto failed;
1133                 if (i2c_bus->valid) {
1134                         radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "DVI");
1135                         if (!radeon_connector->ddc_bus)
1136                                 goto failed;
1137                         radeon_connector->dac_load_detect = true;
1138                         drm_connector_attach_property(&radeon_connector->base,
1139                                                       rdev->mode_info.load_detect_property,
1140                                                       1);
1141                 }
1142                 subpixel_order = SubPixelHorizontalRGB;
1143                 break;
1144         case DRM_MODE_CONNECTOR_SVIDEO:
1145         case DRM_MODE_CONNECTOR_Composite:
1146         case DRM_MODE_CONNECTOR_9PinDIN:
1147                 if (radeon_tv == 1) {
1148                         drm_connector_init(dev, &radeon_connector->base, &radeon_tv_connector_funcs, connector_type);
1149                         ret = drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
1150                         if (ret)
1151                                 goto failed;
1152                         radeon_connector->dac_load_detect = true;
1153                         /* RS400,RC410,RS480 chipset seems to report a lot
1154                          * of false positive on load detect, we haven't yet
1155                          * found a way to make load detect reliable on those
1156                          * chipset, thus just disable it for TV.
1157                          */
1158                         if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480)
1159                                 radeon_connector->dac_load_detect = false;
1160                         drm_connector_attach_property(&radeon_connector->base,
1161                                                       rdev->mode_info.load_detect_property,
1162                                                       1);
1163                 }
1164                 break;
1165         case DRM_MODE_CONNECTOR_LVDS:
1166                 drm_connector_init(dev, &radeon_connector->base, &radeon_lvds_connector_funcs, connector_type);
1167                 ret = drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
1168                 if (ret)
1169                         goto failed;
1170                 if (i2c_bus->valid) {
1171                         radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "LVDS");
1172                         if (!radeon_connector->ddc_bus)
1173                                 goto failed;
1174                 }
1175                 drm_connector_attach_property(&radeon_connector->base,
1176                                               dev->mode_config.scaling_mode_property,
1177                                               DRM_MODE_SCALE_FULLSCREEN);
1178                 subpixel_order = SubPixelHorizontalRGB;
1179                 break;
1180         }
1181
1182         connector->display_info.subpixel_order = subpixel_order;
1183         drm_sysfs_connector_add(connector);
1184         return;
1185
1186 failed:
1187         if (radeon_connector->ddc_bus)
1188                 radeon_i2c_destroy(radeon_connector->ddc_bus);
1189         drm_connector_cleanup(connector);
1190         kfree(connector);
1191 }