1/*
2 * Copyright 2021 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 */
22#include <nvif/outp.h>
23#include <nvif/disp.h>
24#include <nvif/printf.h>
25
26#include <nvif/class.h>
27
28int
29nvif_outp_dp_mst_vcpi(struct nvif_outp *outp, int head,
30 u8 start_slot, u8 num_slots, u16 pbn, u16 aligned_pbn)
31{
32 struct nvif_outp_dp_mst_vcpi_v0 args;
33 int ret;
34
35 args.version = 0;
36 args.head = head;
37 args.start_slot = start_slot;
38 args.num_slots = num_slots;
39 args.pbn = pbn;
40 args.aligned_pbn = aligned_pbn;
41
42 ret = nvif_object_mthd(&outp->object, NVIF_OUTP_V0_DP_MST_VCPI, &args, sizeof(args));
43 NVIF_ERRON(ret, &outp->object,
44 "[DP_MST_VCPI head:%d start_slot:%02x num_slots:%02x pbn:%04x aligned_pbn:%04x]",
45 args.head, args.start_slot, args.num_slots, args.pbn, args.aligned_pbn);
46 return ret;
47}
48
49int
50nvif_outp_dp_mst_id_put(struct nvif_outp *outp, u32 id)
51{
52 struct nvif_outp_dp_mst_id_get_v0 args;
53 int ret;
54
55 args.version = 0;
56 args.id = id;
57 ret = nvif_object_mthd(&outp->object, NVIF_OUTP_V0_DP_MST_ID_PUT, &args, sizeof(args));
58 NVIF_ERRON(ret, &outp->object, "[DP_MST_ID_PUT id:%08x]", args.id);
59 return ret;
60}
61
62int
63nvif_outp_dp_mst_id_get(struct nvif_outp *outp, u32 *id)
64{
65 struct nvif_outp_dp_mst_id_get_v0 args;
66 int ret;
67
68 args.version = 0;
69 ret = nvif_object_mthd(&outp->object, NVIF_OUTP_V0_DP_MST_ID_GET, &args, sizeof(args));
70 NVIF_ERRON(ret, &outp->object, "[DP_MST_ID_GET] id:%08x", args.id);
71 if (ret)
72 return ret;
73
74 *id = args.id;
75 return 0;
76}
77
78int
79nvif_outp_dp_sst(struct nvif_outp *outp, int head, u32 watermark, u32 hblanksym, u32 vblanksym)
80{
81 struct nvif_outp_dp_sst_v0 args;
82 int ret;
83
84 args.version = 0;
85 args.head = head;
86 args.watermark = watermark;
87 args.hblanksym = hblanksym;
88 args.vblanksym = vblanksym;
89 ret = nvif_object_mthd(&outp->object, NVIF_OUTP_V0_DP_SST, &args, sizeof(args));
90 NVIF_ERRON(ret, &outp->object,
91 "[DP_SST head:%d watermark:%d hblanksym:%d vblanksym:%d]",
92 args.head, args.watermark, args.hblanksym, args.vblanksym);
93 return ret;
94}
95
96int
97nvif_outp_dp_drive(struct nvif_outp *outp, u8 link_nr, u8 pe[4], u8 vs[4])
98{
99 struct nvif_outp_dp_drive_v0 args;
100 int ret;
101
102 args.version = 0;
103 args.lanes = link_nr;
104 memcpy(args.pe, pe, sizeof(args.pe));
105 memcpy(args.vs, vs, sizeof(args.vs));
106
107 ret = nvif_object_mthd(&outp->object, NVIF_OUTP_V0_DP_DRIVE, &args, sizeof(args));
108 NVIF_ERRON(ret, &outp->object, "[DP_DRIVE lanes:%d]", args.lanes);
109 return ret;
110}
111
112int
113nvif_outp_dp_train(struct nvif_outp *outp, u8 dpcd[DP_RECEIVER_CAP_SIZE], u8 lttprs,
114 u8 link_nr, u32 link_bw, bool mst, bool post_lt_adj, bool retrain)
115{
116 struct nvif_outp_dp_train_v0 args;
117 int ret;
118
119 args.version = 0;
120 args.retrain = retrain;
121 args.mst = mst;
122 args.lttprs = lttprs;
123 args.post_lt_adj = post_lt_adj;
124 args.link_nr = link_nr;
125 args.link_bw = link_bw;
126 memcpy(args.dpcd, dpcd, sizeof(args.dpcd));
127
128 ret = nvif_object_mthd(&outp->object, NVIF_OUTP_V0_DP_TRAIN, &args, sizeof(args));
129 NVIF_ERRON(ret, &outp->object,
130 "[DP_TRAIN retrain:%d mst:%d lttprs:%d post_lt_adj:%d nr:%d bw:%d]",
131 args.retrain, args.mst, args.lttprs, args.post_lt_adj, args.link_nr,
132 args.link_bw);
133 return ret;
134}
135
136int
137nvif_outp_dp_rates(struct nvif_outp *outp, struct nvif_outp_dp_rate *rate, int rate_nr)
138{
139 struct nvif_outp_dp_rates_v0 args;
140 int ret;
141
142 if (rate_nr > ARRAY_SIZE(args.rate))
143 return -EINVAL;
144
145 args.version = 0;
146 args.rates = rate_nr;
147 for (int i = 0; i < args.rates; i++, rate++) {
148 args.rate[i].dpcd = rate->dpcd;
149 args.rate[i].rate = rate->rate;
150 }
151
152 ret = nvif_object_mthd(&outp->object, NVIF_OUTP_V0_DP_RATES, &args, sizeof(args));
153 NVIF_ERRON(ret, &outp->object, "[DP_RATES rates:%d]", args.rates);
154 return ret;
155}
156
157int
158nvif_outp_dp_aux_xfer(struct nvif_outp *outp, u8 type, u8 *psize, u32 addr, u8 *data)
159{
160 struct nvif_outp_dp_aux_xfer_v0 args;
161 u8 size = *psize;
162 int ret;
163
164 args.version = 0;
165 args.type = type;
166 args.size = size;
167 args.addr = addr;
168 memcpy(args.data, data, size);
169 ret = nvif_object_mthd(&outp->object, NVIF_OUTP_V0_DP_AUX_XFER, &args, sizeof(args));
170 NVIF_DEBUG(&outp->object, "[DP_AUX_XFER type:%d size:%d addr:%05x] %d size:%d (ret: %d)",
171 args.type, size, args.addr, ret, args.size, ret);
172 if (ret < 0)
173 return ret;
174
175 *psize = args.size;
176
177 memcpy(data, args.data, size);
178 return ret;
179}
180
181int
182nvif_outp_dp_aux_pwr(struct nvif_outp *outp, bool enable)
183{
184 struct nvif_outp_dp_aux_pwr_v0 args;
185 int ret;
186
187 args.version = 0;
188 args.state = enable;
189
190 ret = nvif_object_mthd(&outp->object, NVIF_OUTP_V0_DP_AUX_PWR, &args, sizeof(args));
191 NVIF_ERRON(ret, &outp->object, "[DP_AUX_PWR state:%d]", args.state);
192 return ret;
193}
194
195int
196nvif_outp_hda_eld(struct nvif_outp *outp, int head, void *data, u32 size)
197{
198 struct {
199 struct nvif_outp_hda_eld_v0 mthd;
200 u8 data[128];
201 } args;
202 int ret;
203
204 if (WARN_ON(size > ARRAY_SIZE(args.data)))
205 return -EINVAL;
206
207 args.mthd.version = 0;
208 args.mthd.head = head;
209
210 memcpy(args.data, data, size);
211 ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_HDA_ELD, &args, sizeof(args.mthd) + size);
212 NVIF_ERRON(ret, &outp->object, "[HDA_ELD head:%d size:%d]", head, size);
213 return ret;
214}
215
216int
217nvif_outp_infoframe(struct nvif_outp *outp, u8 type, struct nvif_outp_infoframe_v0 *args, u32 size)
218{
219 int ret;
220
221 args->type = type;
222
223 ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_INFOFRAME, args, sizeof(*args) + size);
224 NVIF_ERRON(ret, &outp->object, "[INFOFRAME type:%d size:%d]", type, size);
225 return ret;
226}
227
228int
229nvif_outp_hdmi(struct nvif_outp *outp, int head, bool enable, u8 max_ac_packet, u8 rekey,
230 u32 khz, bool scdc, bool scdc_scrambling, bool scdc_low_rates)
231{
232 struct nvif_outp_hdmi_v0 args;
233 int ret;
234
235 args.version = 0;
236 args.head = head;
237 args.enable = enable;
238 args.max_ac_packet = max_ac_packet;
239 args.rekey = rekey;
240 args.khz = khz;
241 args.scdc = scdc;
242 args.scdc_scrambling = scdc_scrambling;
243 args.scdc_low_rates = scdc_low_rates;
244
245 ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_HDMI, &args, sizeof(args));
246 NVIF_ERRON(ret, &outp->object,
247 "[HDMI head:%d enable:%d max_ac_packet:%d rekey:%d khz:%d scdc:%d "
248 "scdc_scrambling:%d scdc_low_rates:%d]",
249 args.head, args.enable, args.max_ac_packet, args.rekey, args.khz,
250 args.scdc, args.scdc_scrambling, args.scdc_low_rates);
251 return ret;
252}
253
254int
255nvif_outp_lvds(struct nvif_outp *outp, bool dual, bool bpc8)
256{
257 struct nvif_outp_lvds_v0 args;
258 int ret;
259
260 args.version = 0;
261 args.dual = dual;
262 args.bpc8 = bpc8;
263
264 ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_LVDS, &args, sizeof(args));
265 NVIF_ERRON(ret, &outp->object, "[LVDS dual:%d 8bpc:%d]", args.dual, args.bpc8);
266 return ret;
267}
268
269int
270nvif_outp_bl_set(struct nvif_outp *outp, int level)
271{
272 struct nvif_outp_bl_set_v0 args;
273 int ret;
274
275 args.version = 0;
276 args.level = level;
277
278 ret = nvif_object_mthd(&outp->object, NVIF_OUTP_V0_BL_SET, &args, sizeof(args));
279 NVIF_ERRON(ret, &outp->object, "[BL_SET level:%d]", args.level);
280 return ret;
281}
282
283int
284nvif_outp_bl_get(struct nvif_outp *outp)
285{
286 struct nvif_outp_bl_get_v0 args;
287 int ret;
288
289 args.version = 0;
290
291 ret = nvif_object_mthd(&outp->object, NVIF_OUTP_V0_BL_GET, &args, sizeof(args));
292 NVIF_ERRON(ret, &outp->object, "[BL_GET level:%d]", args.level);
293 return ret ? ret : args.level;
294}
295
296void
297nvif_outp_release(struct nvif_outp *outp)
298{
299 int ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_RELEASE, NULL, 0);
300 NVIF_ERRON(ret, &outp->object, "[RELEASE]");
301 outp->or.id = -1;
302}
303
304static inline int
305nvif_outp_acquire(struct nvif_outp *outp, u8 type, struct nvif_outp_acquire_v0 *args)
306{
307 int ret;
308
309 args->version = 0;
310 args->type = type;
311
312 ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_ACQUIRE, args, sizeof(*args));
313 if (ret)
314 return ret;
315
316 outp->or.id = args->or;
317 outp->or.link = args->link;
318 return 0;
319}
320
321int
322nvif_outp_acquire_pior(struct nvif_outp *outp)
323{
324 struct nvif_outp_acquire_v0 args;
325 int ret;
326
327 ret = nvif_outp_acquire(outp, NVIF_OUTP_ACQUIRE_V0_PIOR, &args);
328 NVIF_ERRON(ret, &outp->object, "[ACQUIRE PIOR] or:%d", args.or);
329 return ret;
330}
331
332int
333nvif_outp_acquire_sor(struct nvif_outp *outp, bool hda)
334{
335 struct nvif_outp_acquire_v0 args;
336 int ret;
337
338 args.sor.hda = hda;
339
340 ret = nvif_outp_acquire(outp, NVIF_OUTP_ACQUIRE_V0_SOR, &args);
341 NVIF_ERRON(ret, &outp->object, "[ACQUIRE SOR] or:%d link:%d", args.or, args.link);
342 return ret;
343}
344
345int
346nvif_outp_acquire_dac(struct nvif_outp *outp)
347{
348 struct nvif_outp_acquire_v0 args;
349 int ret;
350
351 ret = nvif_outp_acquire(outp, NVIF_OUTP_ACQUIRE_V0_DAC, &args);
352 NVIF_ERRON(ret, &outp->object, "[ACQUIRE DAC] or:%d", args.or);
353 return ret;
354}
355
356static int
357nvif_outp_inherit(struct nvif_outp *outp,
358 u8 proto,
359 struct nvif_outp_inherit_v0 *args,
360 u8 *proto_out)
361{
362 int ret;
363
364 args->version = 0;
365 args->proto = proto;
366
367 ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_INHERIT, args, sizeof(*args));
368 if (ret)
369 return ret;
370
371 outp->or.id = args->or;
372 outp->or.link = args->link;
373 *proto_out = args->proto;
374 return 0;
375}
376
377int
378nvif_outp_inherit_lvds(struct nvif_outp *outp, u8 *proto_out)
379{
380 struct nvif_outp_inherit_v0 args;
381 int ret;
382
383 ret = nvif_outp_inherit(outp, NVIF_OUTP_INHERIT_V0_LVDS, &args, proto_out);
384 NVIF_ERRON(ret && ret != -ENODEV, &outp->object, "[INHERIT proto:LVDS] ret:%d", ret);
385 return ret ?: args.head;
386}
387
388int
389nvif_outp_inherit_tmds(struct nvif_outp *outp, u8 *proto_out)
390{
391 struct nvif_outp_inherit_v0 args;
392 int ret;
393
394 ret = nvif_outp_inherit(outp, NVIF_OUTP_INHERIT_V0_TMDS, &args, proto_out);
395 NVIF_ERRON(ret && ret != -ENODEV, &outp->object, "[INHERIT proto:TMDS] ret:%d", ret);
396 return ret ?: args.head;
397}
398
399int
400nvif_outp_inherit_dp(struct nvif_outp *outp, u8 *proto_out)
401{
402 struct nvif_outp_inherit_v0 args;
403 int ret;
404
405 ret = nvif_outp_inherit(outp, NVIF_OUTP_INHERIT_V0_DP, &args, proto_out);
406 NVIF_ERRON(ret && ret != -ENODEV, &outp->object, "[INHERIT proto:DP] ret:%d", ret);
407
408 // TODO: Get current link info
409
410 return ret ?: args.head;
411}
412
413int
414nvif_outp_inherit_rgb_crt(struct nvif_outp *outp, u8 *proto_out)
415{
416 struct nvif_outp_inherit_v0 args;
417 int ret;
418
419 ret = nvif_outp_inherit(outp, NVIF_OUTP_INHERIT_V0_RGB_CRT, &args, proto_out);
420 NVIF_ERRON(ret && ret != -ENODEV, &outp->object, "[INHERIT proto:RGB_CRT] ret:%d", ret);
421 return ret ?: args.head;
422}
423
424int
425nvif_outp_load_detect(struct nvif_outp *outp, u32 loadval)
426{
427 struct nvif_outp_load_detect_v0 args;
428 int ret;
429
430 args.version = 0;
431 args.data = loadval;
432
433 ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_LOAD_DETECT, &args, sizeof(args));
434 NVIF_ERRON(ret, &outp->object, "[LOAD_DETECT data:%08x] load:%02x", args.data, args.load);
435 return ret < 0 ? ret : args.load;
436}
437
438int
439nvif_outp_edid_get(struct nvif_outp *outp, u8 **pedid)
440{
441 struct nvif_outp_edid_get_v0 *args;
442 int ret;
443
444 args = kmalloc(sizeof(*args), GFP_KERNEL);
445 if (!args)
446 return -ENOMEM;
447
448 args->version = 0;
449
450 ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_EDID_GET, args, sizeof(*args));
451 NVIF_ERRON(ret, &outp->object, "[EDID_GET] size:%d", args->size);
452 if (ret)
453 goto done;
454
455 *pedid = kmemdup(args->data, args->size, GFP_KERNEL);
456 if (!*pedid) {
457 ret = -ENOMEM;
458 goto done;
459 }
460
461 ret = args->size;
462done:
463 kfree(args);
464 return ret;
465}
466
467enum nvif_outp_detect_status
468nvif_outp_detect(struct nvif_outp *outp)
469{
470 struct nvif_outp_detect_v0 args;
471 int ret;
472
473 args.version = 0;
474
475 ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_DETECT, &args, sizeof(args));
476 NVIF_ERRON(ret, &outp->object, "[DETECT] status:%02x", args.status);
477 if (ret)
478 return UNKNOWN;
479
480 switch (args.status) {
481 case NVIF_OUTP_DETECT_V0_NOT_PRESENT: return NOT_PRESENT;
482 case NVIF_OUTP_DETECT_V0_PRESENT: return PRESENT;
483 case NVIF_OUTP_DETECT_V0_UNKNOWN: return UNKNOWN;
484 default:
485 WARN_ON(1);
486 break;
487 }
488
489 return UNKNOWN;
490}
491
492void
493nvif_outp_dtor(struct nvif_outp *outp)
494{
495 nvif_object_dtor(&outp->object);
496}
497
498int
499nvif_outp_ctor(struct nvif_disp *disp, const char *name, int id, struct nvif_outp *outp)
500{
501 struct nvif_outp_v0 args;
502 int ret;
503
504 args.version = 0;
505 args.id = id;
506
507 ret = nvif_object_ctor(&disp->object, name ?: "nvifOutp", id, NVIF_CLASS_OUTP,
508 &args, sizeof(args), &outp->object);
509 NVIF_ERRON(ret, &disp->object, "[NEW outp id:%d]", id);
510 if (ret)
511 return ret;
512
513 outp->id = args.id;
514
515 switch (args.type) {
516 case NVIF_OUTP_V0_TYPE_DAC : outp->info.type = NVIF_OUTP_DAC; break;
517 case NVIF_OUTP_V0_TYPE_SOR : outp->info.type = NVIF_OUTP_SOR; break;
518 case NVIF_OUTP_V0_TYPE_PIOR: outp->info.type = NVIF_OUTP_PIOR; break;
519 break;
520 default:
521 WARN_ON(1);
522 nvif_outp_dtor(outp);
523 return -EINVAL;
524 }
525
526 switch (args.proto) {
527 case NVIF_OUTP_V0_PROTO_RGB_CRT:
528 outp->info.proto = NVIF_OUTP_RGB_CRT;
529 outp->info.rgb_crt.freq_max = args.rgb_crt.freq_max;
530 break;
531 case NVIF_OUTP_V0_PROTO_TMDS:
532 outp->info.proto = NVIF_OUTP_TMDS;
533 outp->info.tmds.dual = args.tmds.dual;
534 break;
535 case NVIF_OUTP_V0_PROTO_LVDS:
536 outp->info.proto = NVIF_OUTP_LVDS;
537 outp->info.lvds.acpi_edid = args.lvds.acpi_edid;
538 break;
539 case NVIF_OUTP_V0_PROTO_DP:
540 outp->info.proto = NVIF_OUTP_DP;
541 outp->info.dp.aux = args.dp.aux;
542 outp->info.dp.mst = args.dp.mst;
543 outp->info.dp.increased_wm = args.dp.increased_wm;
544 outp->info.dp.link_nr = args.dp.link_nr;
545 outp->info.dp.link_bw = args.dp.link_bw;
546 break;
547 default:
548 WARN_ON(1);
549 nvif_outp_dtor(outp);
550 return -EINVAL;
551 }
552
553 outp->info.heads = args.heads;
554 outp->info.ddc = args.ddc;
555 outp->info.conn = args.conn;
556
557 outp->or.id = -1;
558 return 0;
559}
560

source code of linux/drivers/gpu/drm/nouveau/nvif/outp.c