1 // SPDX-License-Identifier: GPL-2.0-only
2 // Copyright(c) 2024 Advanced Micro Devices, Inc.
3
4 /*
5 * acp-sdw-legacy-mach - ASoC legacy Machine driver for AMD SoundWire platforms
6 */
7
8 #include <linux/bitmap.h>
9 #include <linux/device.h>
10 #include <linux/dmi.h>
11 #include <linux/module.h>
12 #include <linux/soundwire/sdw.h>
13 #include <linux/soundwire/sdw_type.h>
14 #include <sound/soc.h>
15 #include <sound/soc-acpi.h>
16 #include "soc_amd_sdw_common.h"
17 #include "../../codecs/rt711.h"
18
19 static unsigned long soc_sdw_quirk = RT711_JD1;
20 static int quirk_override = -1;
21 module_param_named(quirk, quirk_override, int, 0444);
22 MODULE_PARM_DESC(quirk, "Board-specific quirk override");
23
log_quirks(struct device * dev)24 static void log_quirks(struct device *dev)
25 {
26 if (SOC_JACK_JDSRC(soc_sdw_quirk))
27 dev_dbg(dev, "quirk realtek,jack-detect-source %ld\n",
28 SOC_JACK_JDSRC(soc_sdw_quirk));
29 if (soc_sdw_quirk & ASOC_SDW_ACP_DMIC)
30 dev_dbg(dev, "quirk SOC_SDW_ACP_DMIC enabled\n");
31 if (soc_sdw_quirk & ASOC_SDW_CODEC_SPKR)
32 dev_dbg(dev, "quirk ASOC_SDW_CODEC_SPKR enabled\n");
33 }
34
soc_sdw_quirk_cb(const struct dmi_system_id * id)35 static int soc_sdw_quirk_cb(const struct dmi_system_id *id)
36 {
37 soc_sdw_quirk = (unsigned long)id->driver_data;
38 return 1;
39 }
40
41 static const struct dmi_system_id soc_sdw_quirk_table[] = {
42 {
43 .callback = soc_sdw_quirk_cb,
44 .matches = {
45 DMI_MATCH(DMI_SYS_VENDOR, "AMD"),
46 DMI_MATCH(DMI_PRODUCT_NAME, "Birman-PHX"),
47 },
48 .driver_data = (void *)RT711_JD2,
49 },
50 {
51 .callback = soc_sdw_quirk_cb,
52 .matches = {
53 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
54 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0D80"),
55 },
56 .driver_data = (void *)(ASOC_SDW_CODEC_SPKR),
57 },
58 {
59 .callback = soc_sdw_quirk_cb,
60 .matches = {
61 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
62 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0D81"),
63 },
64 .driver_data = (void *)(ASOC_SDW_CODEC_SPKR),
65 },
66 {
67 .callback = soc_sdw_quirk_cb,
68 .matches = {
69 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
70 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0D82"),
71 },
72 .driver_data = (void *)(ASOC_SDW_CODEC_SPKR),
73 },
74 {
75 .callback = soc_sdw_quirk_cb,
76 .matches = {
77 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
78 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0D83"),
79 },
80 .driver_data = (void *)(ASOC_SDW_CODEC_SPKR),
81 },
82 {}
83 };
84
85 static const struct snd_soc_ops sdw_ops = {
86 .startup = asoc_sdw_startup,
87 .prepare = asoc_sdw_prepare,
88 .trigger = asoc_sdw_trigger,
89 .hw_params = asoc_sdw_hw_params,
90 .hw_free = asoc_sdw_hw_free,
91 .shutdown = asoc_sdw_shutdown,
92 };
93
94 static const char * const type_strings[] = {"SimpleJack", "SmartAmp", "SmartMic"};
95
create_sdw_dailink(struct snd_soc_card * card,struct asoc_sdw_dailink * soc_dai,struct snd_soc_dai_link ** dai_links,int * be_id,struct snd_soc_codec_conf ** codec_conf,struct snd_soc_dai_link_component * sdw_platform_component)96 static int create_sdw_dailink(struct snd_soc_card *card,
97 struct asoc_sdw_dailink *soc_dai,
98 struct snd_soc_dai_link **dai_links,
99 int *be_id, struct snd_soc_codec_conf **codec_conf,
100 struct snd_soc_dai_link_component *sdw_platform_component)
101 {
102 struct device *dev = card->dev;
103 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
104 struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private;
105 struct asoc_sdw_endpoint *soc_end;
106 int cpu_pin_id;
107 int stream;
108 int ret;
109
110 list_for_each_entry(soc_end, &soc_dai->endpoints, list) {
111 if (soc_end->name_prefix) {
112 (*codec_conf)->dlc.name = soc_end->codec_name;
113 (*codec_conf)->name_prefix = soc_end->name_prefix;
114 (*codec_conf)++;
115 }
116
117 if (soc_end->include_sidecar) {
118 ret = soc_end->codec_info->add_sidecar(card, dai_links, codec_conf);
119 if (ret)
120 return ret;
121 }
122 }
123
124 for_each_pcm_streams(stream) {
125 static const char * const sdw_stream_name[] = {
126 "SDW%d-PIN%d-PLAYBACK",
127 "SDW%d-PIN%d-CAPTURE",
128 "SDW%d-PIN%d-PLAYBACK-%s",
129 "SDW%d-PIN%d-CAPTURE-%s",
130 };
131 struct snd_soc_dai_link_ch_map *codec_maps;
132 struct snd_soc_dai_link_component *codecs;
133 struct snd_soc_dai_link_component *cpus;
134 int num_cpus = hweight32(soc_dai->link_mask[stream]);
135 int num_codecs = soc_dai->num_devs[stream];
136 int playback, capture;
137 int j = 0;
138 char *name;
139
140 if (!soc_dai->num_devs[stream])
141 continue;
142
143 soc_end = list_first_entry(&soc_dai->endpoints,
144 struct asoc_sdw_endpoint, list);
145
146 *be_id = soc_end->dai_info->dailink[stream];
147 if (*be_id < 0) {
148 dev_err(dev, "Invalid dailink id %d\n", *be_id);
149 return -EINVAL;
150 }
151
152 switch (amd_ctx->acp_rev) {
153 case ACP63_PCI_REV:
154 ret = get_acp63_cpu_pin_id(ffs(soc_end->link_mask - 1),
155 *be_id, &cpu_pin_id, dev);
156 if (ret)
157 return ret;
158 break;
159 case ACP70_PCI_REV:
160 case ACP71_PCI_REV:
161 ret = get_acp70_cpu_pin_id(ffs(soc_end->link_mask - 1),
162 *be_id, &cpu_pin_id, dev);
163 if (ret)
164 return ret;
165 break;
166 default:
167 return -EINVAL;
168 }
169 /* create stream name according to first link id */
170 if (ctx->append_dai_type) {
171 name = devm_kasprintf(dev, GFP_KERNEL,
172 sdw_stream_name[stream + 2],
173 ffs(soc_end->link_mask) - 1,
174 cpu_pin_id,
175 type_strings[soc_end->dai_info->dai_type]);
176 } else {
177 name = devm_kasprintf(dev, GFP_KERNEL,
178 sdw_stream_name[stream],
179 ffs(soc_end->link_mask) - 1,
180 cpu_pin_id);
181 }
182 if (!name)
183 return -ENOMEM;
184
185 cpus = devm_kcalloc(dev, num_cpus, sizeof(*cpus), GFP_KERNEL);
186 if (!cpus)
187 return -ENOMEM;
188
189 codecs = devm_kcalloc(dev, num_codecs, sizeof(*codecs), GFP_KERNEL);
190 if (!codecs)
191 return -ENOMEM;
192
193 codec_maps = devm_kcalloc(dev, num_codecs, sizeof(*codec_maps), GFP_KERNEL);
194 if (!codec_maps)
195 return -ENOMEM;
196
197 list_for_each_entry(soc_end, &soc_dai->endpoints, list) {
198 if (!soc_end->dai_info->direction[stream])
199 continue;
200
201 int link_num = ffs(soc_end->link_mask) - 1;
202
203 cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
204 "SDW%d Pin%d",
205 link_num, cpu_pin_id);
206 dev_dbg(dev, "cpu->dai_name:%s\n", cpus->dai_name);
207 if (!cpus->dai_name)
208 return -ENOMEM;
209
210 codec_maps[j].cpu = 0;
211 codec_maps[j].codec = j;
212
213 codecs[j].name = soc_end->codec_name;
214 codecs[j].dai_name = soc_end->dai_info->dai_name;
215 j++;
216 }
217
218 WARN_ON(j != num_codecs);
219
220 playback = (stream == SNDRV_PCM_STREAM_PLAYBACK);
221 capture = (stream == SNDRV_PCM_STREAM_CAPTURE);
222
223 asoc_sdw_init_dai_link(dev, *dai_links, be_id, name, playback, capture,
224 cpus, num_cpus, sdw_platform_component,
225 1, codecs, num_codecs,
226 0, asoc_sdw_rtd_init, &sdw_ops);
227 /*
228 * SoundWire DAILINKs use 'stream' functions and Bank Switch operations
229 * based on wait_for_completion(), tag them as 'nonatomic'.
230 */
231 (*dai_links)->nonatomic = true;
232 (*dai_links)->ch_maps = codec_maps;
233
234 list_for_each_entry(soc_end, &soc_dai->endpoints, list) {
235 if (soc_end->dai_info->init)
236 soc_end->dai_info->init(card, *dai_links,
237 soc_end->codec_info,
238 playback);
239 }
240
241 (*dai_links)++;
242 }
243
244 return 0;
245 }
246
create_sdw_dailinks(struct snd_soc_card * card,struct snd_soc_dai_link ** dai_links,int * be_id,struct asoc_sdw_dailink * soc_dais,struct snd_soc_codec_conf ** codec_conf)247 static int create_sdw_dailinks(struct snd_soc_card *card,
248 struct snd_soc_dai_link **dai_links, int *be_id,
249 struct asoc_sdw_dailink *soc_dais,
250 struct snd_soc_codec_conf **codec_conf)
251 {
252 struct device *dev = card->dev;
253 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
254 struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private;
255 struct snd_soc_dai_link_component *sdw_platform_component;
256 int ret;
257
258 sdw_platform_component = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component),
259 GFP_KERNEL);
260 if (!sdw_platform_component)
261 return -ENOMEM;
262
263 switch (amd_ctx->acp_rev) {
264 case ACP63_PCI_REV:
265 case ACP70_PCI_REV:
266 case ACP71_PCI_REV:
267 sdw_platform_component->name = "amd_ps_sdw_dma.0";
268 break;
269 default:
270 return -EINVAL;
271 }
272
273 /* generate DAI links by each sdw link */
274 while (soc_dais->initialised) {
275 int current_be_id = 0;
276
277 ret = create_sdw_dailink(card, soc_dais, dai_links,
278 ¤t_be_id, codec_conf, sdw_platform_component);
279 if (ret)
280 return ret;
281
282 /* Update the be_id to match the highest ID used for SDW link */
283 if (*be_id < current_be_id)
284 *be_id = current_be_id;
285
286 soc_dais++;
287 }
288
289 return 0;
290 }
291
create_dmic_dailinks(struct snd_soc_card * card,struct snd_soc_dai_link ** dai_links,int * be_id,int no_pcm)292 static int create_dmic_dailinks(struct snd_soc_card *card,
293 struct snd_soc_dai_link **dai_links, int *be_id, int no_pcm)
294 {
295 struct device *dev = card->dev;
296 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
297 struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private;
298 struct snd_soc_dai_link_component *pdm_cpu;
299 struct snd_soc_dai_link_component *pdm_platform;
300 int ret;
301
302 pdm_cpu = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component), GFP_KERNEL);
303 if (!pdm_cpu)
304 return -ENOMEM;
305
306 pdm_platform = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component), GFP_KERNEL);
307 if (!pdm_platform)
308 return -ENOMEM;
309
310 switch (amd_ctx->acp_rev) {
311 case ACP63_PCI_REV:
312 case ACP70_PCI_REV:
313 case ACP71_PCI_REV:
314 pdm_cpu->name = "acp_ps_pdm_dma.0";
315 pdm_platform->name = "acp_ps_pdm_dma.0";
316 break;
317 default:
318 return -EINVAL;
319 }
320
321 *be_id = ACP_DMIC_BE_ID;
322 ret = asoc_sdw_init_simple_dai_link(dev, *dai_links, be_id, "acp-dmic-codec",
323 0, 1, // DMIC only supports capture
324 pdm_cpu->name, pdm_platform->name,
325 "dmic-codec.0", "dmic-hifi", no_pcm,
326 asoc_sdw_dmic_init, NULL);
327 if (ret)
328 return ret;
329
330 (*dai_links)++;
331
332 return 0;
333 }
334
soc_card_dai_links_create(struct snd_soc_card * card)335 static int soc_card_dai_links_create(struct snd_soc_card *card)
336 {
337 struct device *dev = card->dev;
338 struct snd_soc_acpi_mach *mach = dev_get_platdata(card->dev);
339 int sdw_be_num = 0, dmic_num = 0;
340 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
341 struct snd_soc_acpi_mach_params *mach_params = &mach->mach_params;
342 struct asoc_sdw_endpoint *soc_ends __free(kfree) = NULL;
343 struct asoc_sdw_dailink *soc_dais __free(kfree) = NULL;
344 struct snd_soc_codec_conf *codec_conf;
345 struct snd_soc_dai_link *dai_links;
346 int num_devs = 0;
347 int num_ends = 0;
348 int num_links;
349 int be_id = 0;
350 int ret;
351
352 ret = asoc_sdw_count_sdw_endpoints(card, &num_devs, &num_ends);
353 if (ret < 0) {
354 dev_err(dev, "failed to count devices/endpoints: %d\n", ret);
355 return ret;
356 }
357
358 /* One per DAI link, worst case is a DAI link for every endpoint */
359 soc_dais = kcalloc(num_ends, sizeof(*soc_dais), GFP_KERNEL);
360 if (!soc_dais)
361 return -ENOMEM;
362
363 /* One per endpoint, ie. each DAI on each codec/amp */
364 soc_ends = kcalloc(num_ends, sizeof(*soc_ends), GFP_KERNEL);
365 if (!soc_ends)
366 return -ENOMEM;
367
368 ret = asoc_sdw_parse_sdw_endpoints(card, soc_dais, soc_ends, &num_devs);
369 if (ret < 0)
370 return ret;
371
372 sdw_be_num = ret;
373
374 /* enable dmic */
375 if (soc_sdw_quirk & ASOC_SDW_ACP_DMIC || mach_params->dmic_num)
376 dmic_num = 1;
377
378 dev_dbg(dev, "sdw %d, dmic %d", sdw_be_num, dmic_num);
379
380 codec_conf = devm_kcalloc(dev, num_devs, sizeof(*codec_conf), GFP_KERNEL);
381 if (!codec_conf)
382 return -ENOMEM;
383
384 /* allocate BE dailinks */
385 num_links = sdw_be_num + dmic_num;
386 dai_links = devm_kcalloc(dev, num_links, sizeof(*dai_links), GFP_KERNEL);
387 if (!dai_links)
388 return -ENOMEM;
389
390 card->codec_conf = codec_conf;
391 card->num_configs = num_devs;
392 card->dai_link = dai_links;
393 card->num_links = num_links;
394
395 /* SDW */
396 if (sdw_be_num) {
397 ret = create_sdw_dailinks(card, &dai_links, &be_id,
398 soc_dais, &codec_conf);
399 if (ret)
400 return ret;
401 }
402
403 /* dmic */
404 if (dmic_num > 0) {
405 if (ctx->ignore_internal_dmic) {
406 dev_warn(dev, "Ignoring ACP DMIC\n");
407 } else {
408 ret = create_dmic_dailinks(card, &dai_links, &be_id, 0);
409 if (ret)
410 return ret;
411 }
412 }
413
414 WARN_ON(codec_conf != card->codec_conf + card->num_configs);
415 WARN_ON(dai_links != card->dai_link + card->num_links);
416
417 return ret;
418 }
419
mc_probe(struct platform_device * pdev)420 static int mc_probe(struct platform_device *pdev)
421 {
422 struct snd_soc_acpi_mach *mach = dev_get_platdata(&pdev->dev);
423 struct snd_soc_card *card;
424 struct amd_mc_ctx *amd_ctx;
425 struct asoc_sdw_mc_private *ctx;
426 int amp_num = 0, i;
427 int ret;
428
429 amd_ctx = devm_kzalloc(&pdev->dev, sizeof(*amd_ctx), GFP_KERNEL);
430 if (!amd_ctx)
431 return -ENOMEM;
432
433 amd_ctx->acp_rev = mach->mach_params.subsystem_rev;
434 amd_ctx->max_sdw_links = ACP63_SDW_MAX_LINKS;
435 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
436 if (!ctx)
437 return -ENOMEM;
438 ctx->codec_info_list_count = asoc_sdw_get_codec_info_list_count();
439 ctx->private = amd_ctx;
440 card = &ctx->card;
441 card->dev = &pdev->dev;
442 card->name = "amd-soundwire";
443 card->owner = THIS_MODULE;
444 card->late_probe = asoc_sdw_card_late_probe;
445
446 snd_soc_card_set_drvdata(card, ctx);
447
448 dmi_check_system(soc_sdw_quirk_table);
449
450 if (quirk_override != -1) {
451 dev_info(card->dev, "Overriding quirk 0x%lx => 0x%x\n",
452 soc_sdw_quirk, quirk_override);
453 soc_sdw_quirk = quirk_override;
454 }
455
456 log_quirks(card->dev);
457
458 ctx->mc_quirk = soc_sdw_quirk;
459 dev_dbg(card->dev, "legacy quirk 0x%lx\n", ctx->mc_quirk);
460 /* reset amp_num to ensure amp_num++ starts from 0 in each probe */
461 for (i = 0; i < ctx->codec_info_list_count; i++)
462 codec_info_list[i].amp_num = 0;
463
464 ret = soc_card_dai_links_create(card);
465 if (ret < 0)
466 return ret;
467
468 /*
469 * the default amp_num is zero for each codec and
470 * amp_num will only be increased for active amp
471 * codecs on used platform
472 */
473 for (i = 0; i < ctx->codec_info_list_count; i++)
474 amp_num += codec_info_list[i].amp_num;
475
476 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
477 " cfg-amp:%d", amp_num);
478 if (!card->components)
479 return -ENOMEM;
480 if (mach->mach_params.dmic_num) {
481 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
482 "%s mic:dmic cfg-mics:%d",
483 card->components,
484 mach->mach_params.dmic_num);
485 if (!card->components)
486 return -ENOMEM;
487 }
488
489 /* Register the card */
490 ret = devm_snd_soc_register_card(card->dev, card);
491 if (ret) {
492 dev_err_probe(card->dev, ret, "snd_soc_register_card failed %d\n", ret);
493 asoc_sdw_mc_dailink_exit_loop(card);
494 return ret;
495 }
496
497 platform_set_drvdata(pdev, card);
498
499 return ret;
500 }
501
mc_remove(struct platform_device * pdev)502 static void mc_remove(struct platform_device *pdev)
503 {
504 struct snd_soc_card *card = platform_get_drvdata(pdev);
505
506 asoc_sdw_mc_dailink_exit_loop(card);
507 }
508
509 static const struct platform_device_id mc_id_table[] = {
510 { "amd_sdw", },
511 {}
512 };
513 MODULE_DEVICE_TABLE(platform, mc_id_table);
514
515 static struct platform_driver soc_sdw_driver = {
516 .driver = {
517 .name = "amd_sdw",
518 .pm = &snd_soc_pm_ops,
519 },
520 .probe = mc_probe,
521 .remove = mc_remove,
522 .id_table = mc_id_table,
523 };
524
525 module_platform_driver(soc_sdw_driver);
526
527 MODULE_DESCRIPTION("ASoC AMD SoundWire Legacy Generic Machine driver");
528 MODULE_AUTHOR("Vijendar Mukunda <Vijendar.Mukunda@amd.com>");
529 MODULE_LICENSE("GPL");
530 MODULE_IMPORT_NS("SND_SOC_SDW_UTILS");
531 MODULE_IMPORT_NS("SND_SOC_AMD_SDW_MACH");
532