xref: /linux/drivers/gpu/drm/nouveau/nvif/outp.c (revision fd7d598270724cc787982ea48bbe17ad383a8b7f)
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 
28 int
29 nvif_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 
49 int
50 nvif_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 
62 int
63 nvif_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 
78 int
79 nvif_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 
96 int
97 nvif_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 
112 int
113 nvif_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 
136 int
137 nvif_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 
157 int
158 nvif_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 
181 int
182 nvif_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 
195 int
196 nvif_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 
216 int
217 nvif_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 
228 int
229 nvif_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 
254 int
255 nvif_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 
269 int
270 nvif_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 
283 int
284 nvif_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 
296 void
297 nvif_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 
304 static inline int
305 nvif_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 
321 int
322 nvif_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 
332 int
333 nvif_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 
345 int
346 nvif_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 
356 static int
357 nvif_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 
377 int
378 nvif_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 
388 int
389 nvif_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 
399 int
400 nvif_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 
413 int
414 nvif_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 
424 int
425 nvif_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 
438 int
439 nvif_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 = kmalloc(args->size, GFP_KERNEL);
456 	if (!*pedid) {
457 		ret = -ENOMEM;
458 		goto done;
459 	}
460 
461 	memcpy(*pedid, args->data, args->size);
462 	ret = args->size;
463 done:
464 	kfree(args);
465 	return ret;
466 }
467 
468 enum nvif_outp_detect_status
469 nvif_outp_detect(struct nvif_outp *outp)
470 {
471 	struct nvif_outp_detect_v0 args;
472 	int ret;
473 
474 	args.version = 0;
475 
476 	ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_DETECT, &args, sizeof(args));
477 	NVIF_ERRON(ret, &outp->object, "[DETECT] status:%02x", args.status);
478 	if (ret)
479 		return UNKNOWN;
480 
481 	switch (args.status) {
482 	case NVIF_OUTP_DETECT_V0_NOT_PRESENT: return NOT_PRESENT;
483 	case NVIF_OUTP_DETECT_V0_PRESENT: return PRESENT;
484 	case NVIF_OUTP_DETECT_V0_UNKNOWN: return UNKNOWN;
485 	default:
486 		WARN_ON(1);
487 		break;
488 	}
489 
490 	return UNKNOWN;
491 }
492 
493 void
494 nvif_outp_dtor(struct nvif_outp *outp)
495 {
496 	nvif_object_dtor(&outp->object);
497 }
498 
499 int
500 nvif_outp_ctor(struct nvif_disp *disp, const char *name, int id, struct nvif_outp *outp)
501 {
502 	struct nvif_outp_v0 args;
503 	int ret;
504 
505 	args.version = 0;
506 	args.id = id;
507 
508 	ret = nvif_object_ctor(&disp->object, name ?: "nvifOutp", id, NVIF_CLASS_OUTP,
509 			       &args, sizeof(args), &outp->object);
510 	NVIF_ERRON(ret, &disp->object, "[NEW outp id:%d]", id);
511 	if (ret)
512 		return ret;
513 
514 	outp->id = args.id;
515 
516 	switch (args.type) {
517 	case NVIF_OUTP_V0_TYPE_DAC : outp->info.type = NVIF_OUTP_DAC; break;
518 	case NVIF_OUTP_V0_TYPE_SOR : outp->info.type = NVIF_OUTP_SOR; break;
519 	case NVIF_OUTP_V0_TYPE_PIOR: outp->info.type = NVIF_OUTP_PIOR; break;
520 		break;
521 	default:
522 		WARN_ON(1);
523 		nvif_outp_dtor(outp);
524 		return -EINVAL;
525 	}
526 
527 	switch (args.proto) {
528 	case NVIF_OUTP_V0_PROTO_RGB_CRT:
529 		outp->info.proto = NVIF_OUTP_RGB_CRT;
530 		outp->info.rgb_crt.freq_max = args.rgb_crt.freq_max;
531 		break;
532 	case NVIF_OUTP_V0_PROTO_TMDS:
533 		outp->info.proto = NVIF_OUTP_TMDS;
534 		outp->info.tmds.dual = args.tmds.dual;
535 		break;
536 	case NVIF_OUTP_V0_PROTO_LVDS:
537 		outp->info.proto = NVIF_OUTP_LVDS;
538 		outp->info.lvds.acpi_edid = args.lvds.acpi_edid;
539 		break;
540 	case NVIF_OUTP_V0_PROTO_DP:
541 		outp->info.proto = NVIF_OUTP_DP;
542 		outp->info.dp.aux = args.dp.aux;
543 		outp->info.dp.mst = args.dp.mst;
544 		outp->info.dp.increased_wm = args.dp.increased_wm;
545 		outp->info.dp.link_nr = args.dp.link_nr;
546 		outp->info.dp.link_bw = args.dp.link_bw;
547 		break;
548 	default:
549 		WARN_ON(1);
550 		nvif_outp_dtor(outp);
551 		return -EINVAL;
552 	}
553 
554 	outp->info.heads = args.heads;
555 	outp->info.ddc = args.ddc;
556 	outp->info.conn = args.conn;
557 
558 	outp->or.id = -1;
559 	return 0;
560 }
561