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 default:
160 return -EINVAL;
161 }
162 /* create stream name according to first link id */
163 if (ctx->append_dai_type) {
164 name = devm_kasprintf(dev, GFP_KERNEL,
165 sdw_stream_name[stream + 2],
166 ffs(soc_end->link_mask) - 1,
167 cpu_pin_id,
168 type_strings[soc_end->dai_info->dai_type]);
169 } else {
170 name = devm_kasprintf(dev, GFP_KERNEL,
171 sdw_stream_name[stream],
172 ffs(soc_end->link_mask) - 1,
173 cpu_pin_id);
174 }
175 if (!name)
176 return -ENOMEM;
177
178 cpus = devm_kcalloc(dev, num_cpus, sizeof(*cpus), GFP_KERNEL);
179 if (!cpus)
180 return -ENOMEM;
181
182 codecs = devm_kcalloc(dev, num_codecs, sizeof(*codecs), GFP_KERNEL);
183 if (!codecs)
184 return -ENOMEM;
185
186 codec_maps = devm_kcalloc(dev, num_codecs, sizeof(*codec_maps), GFP_KERNEL);
187 if (!codec_maps)
188 return -ENOMEM;
189
190 list_for_each_entry(soc_end, &soc_dai->endpoints, list) {
191 if (!soc_end->dai_info->direction[stream])
192 continue;
193
194 int link_num = ffs(soc_end->link_mask) - 1;
195
196 cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
197 "SDW%d Pin%d",
198 link_num, cpu_pin_id);
199 dev_dbg(dev, "cpu->dai_name:%s\n", cpus->dai_name);
200 if (!cpus->dai_name)
201 return -ENOMEM;
202
203 codec_maps[j].cpu = 0;
204 codec_maps[j].codec = j;
205
206 codecs[j].name = soc_end->codec_name;
207 codecs[j].dai_name = soc_end->dai_info->dai_name;
208 j++;
209 }
210
211 WARN_ON(j != num_codecs);
212
213 playback = (stream == SNDRV_PCM_STREAM_PLAYBACK);
214 capture = (stream == SNDRV_PCM_STREAM_CAPTURE);
215
216 asoc_sdw_init_dai_link(dev, *dai_links, be_id, name, playback, capture,
217 cpus, num_cpus, sdw_platform_component,
218 1, codecs, num_codecs,
219 0, asoc_sdw_rtd_init, &sdw_ops);
220 /*
221 * SoundWire DAILINKs use 'stream' functions and Bank Switch operations
222 * based on wait_for_completion(), tag them as 'nonatomic'.
223 */
224 (*dai_links)->nonatomic = true;
225 (*dai_links)->ch_maps = codec_maps;
226
227 list_for_each_entry(soc_end, &soc_dai->endpoints, list) {
228 if (soc_end->dai_info->init)
229 soc_end->dai_info->init(card, *dai_links,
230 soc_end->codec_info,
231 playback);
232 }
233
234 (*dai_links)++;
235 }
236
237 return 0;
238 }
239
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)240 static int create_sdw_dailinks(struct snd_soc_card *card,
241 struct snd_soc_dai_link **dai_links, int *be_id,
242 struct asoc_sdw_dailink *soc_dais,
243 struct snd_soc_codec_conf **codec_conf)
244 {
245 struct device *dev = card->dev;
246 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
247 struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private;
248 struct snd_soc_dai_link_component *sdw_platform_component;
249 int ret;
250
251 sdw_platform_component = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component),
252 GFP_KERNEL);
253 if (!sdw_platform_component)
254 return -ENOMEM;
255
256 switch (amd_ctx->acp_rev) {
257 case ACP63_PCI_REV:
258 sdw_platform_component->name = "amd_ps_sdw_dma.0";
259 break;
260 default:
261 return -EINVAL;
262 }
263
264 /* generate DAI links by each sdw link */
265 while (soc_dais->initialised) {
266 int current_be_id;
267
268 ret = create_sdw_dailink(card, soc_dais, dai_links,
269 ¤t_be_id, codec_conf, sdw_platform_component);
270 if (ret)
271 return ret;
272
273 /* Update the be_id to match the highest ID used for SDW link */
274 if (*be_id < current_be_id)
275 *be_id = current_be_id;
276
277 soc_dais++;
278 }
279
280 return 0;
281 }
282
create_dmic_dailinks(struct snd_soc_card * card,struct snd_soc_dai_link ** dai_links,int * be_id,int no_pcm)283 static int create_dmic_dailinks(struct snd_soc_card *card,
284 struct snd_soc_dai_link **dai_links, int *be_id, int no_pcm)
285 {
286 struct device *dev = card->dev;
287 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
288 struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private;
289 struct snd_soc_dai_link_component *pdm_cpu;
290 struct snd_soc_dai_link_component *pdm_platform;
291 int ret;
292
293 pdm_cpu = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component), GFP_KERNEL);
294 if (!pdm_cpu)
295 return -ENOMEM;
296
297 pdm_platform = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component), GFP_KERNEL);
298 if (!pdm_platform)
299 return -ENOMEM;
300
301 switch (amd_ctx->acp_rev) {
302 case ACP63_PCI_REV:
303 pdm_cpu->name = "acp_ps_pdm_dma.0";
304 pdm_platform->name = "acp_ps_pdm_dma.0";
305 break;
306 default:
307 return -EINVAL;
308 }
309
310 *be_id = ACP_DMIC_BE_ID;
311 ret = asoc_sdw_init_simple_dai_link(dev, *dai_links, be_id, "acp-dmic-codec",
312 0, 1, // DMIC only supports capture
313 pdm_cpu->name, pdm_platform->name, 1,
314 "dmic-codec.0", "dmic-hifi", no_pcm,
315 asoc_sdw_dmic_init, NULL);
316 if (ret)
317 return ret;
318
319 (*dai_links)++;
320
321 return 0;
322 }
323
soc_card_dai_links_create(struct snd_soc_card * card)324 static int soc_card_dai_links_create(struct snd_soc_card *card)
325 {
326 struct device *dev = card->dev;
327 struct snd_soc_acpi_mach *mach = dev_get_platdata(card->dev);
328 int sdw_be_num = 0, dmic_num = 0;
329 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
330 struct snd_soc_acpi_mach_params *mach_params = &mach->mach_params;
331 struct asoc_sdw_endpoint *soc_ends __free(kfree) = NULL;
332 struct asoc_sdw_dailink *soc_dais __free(kfree) = NULL;
333 struct snd_soc_codec_conf *codec_conf;
334 struct snd_soc_dai_link *dai_links;
335 int num_devs = 0;
336 int num_ends = 0;
337 int num_links;
338 int be_id = 0;
339 int ret;
340
341 ret = asoc_sdw_count_sdw_endpoints(card, &num_devs, &num_ends);
342 if (ret < 0) {
343 dev_err(dev, "failed to count devices/endpoints: %d\n", ret);
344 return ret;
345 }
346
347 /* One per DAI link, worst case is a DAI link for every endpoint */
348 soc_dais = kcalloc(num_ends, sizeof(*soc_dais), GFP_KERNEL);
349 if (!soc_dais)
350 return -ENOMEM;
351
352 /* One per endpoint, ie. each DAI on each codec/amp */
353 soc_ends = kcalloc(num_ends, sizeof(*soc_ends), GFP_KERNEL);
354 if (!soc_ends)
355 return -ENOMEM;
356
357 ret = asoc_sdw_parse_sdw_endpoints(card, soc_dais, soc_ends, &num_devs);
358 if (ret < 0)
359 return ret;
360
361 sdw_be_num = ret;
362
363 /* enable dmic */
364 if (soc_sdw_quirk & ASOC_SDW_ACP_DMIC || mach_params->dmic_num)
365 dmic_num = 1;
366
367 dev_dbg(dev, "sdw %d, dmic %d", sdw_be_num, dmic_num);
368
369 codec_conf = devm_kcalloc(dev, num_devs, sizeof(*codec_conf), GFP_KERNEL);
370 if (!codec_conf)
371 return -ENOMEM;
372
373 /* allocate BE dailinks */
374 num_links = sdw_be_num + dmic_num;
375 dai_links = devm_kcalloc(dev, num_links, sizeof(*dai_links), GFP_KERNEL);
376 if (!dai_links)
377 return -ENOMEM;
378
379 card->codec_conf = codec_conf;
380 card->num_configs = num_devs;
381 card->dai_link = dai_links;
382 card->num_links = num_links;
383
384 /* SDW */
385 if (sdw_be_num) {
386 ret = create_sdw_dailinks(card, &dai_links, &be_id,
387 soc_dais, &codec_conf);
388 if (ret)
389 return ret;
390 }
391
392 /* dmic */
393 if (dmic_num > 0) {
394 if (ctx->ignore_internal_dmic) {
395 dev_warn(dev, "Ignoring ACP DMIC\n");
396 } else {
397 ret = create_dmic_dailinks(card, &dai_links, &be_id, 0);
398 if (ret)
399 return ret;
400 }
401 }
402
403 WARN_ON(codec_conf != card->codec_conf + card->num_configs);
404 WARN_ON(dai_links != card->dai_link + card->num_links);
405
406 return ret;
407 }
408
mc_probe(struct platform_device * pdev)409 static int mc_probe(struct platform_device *pdev)
410 {
411 struct snd_soc_acpi_mach *mach = dev_get_platdata(&pdev->dev);
412 struct snd_soc_card *card;
413 struct amd_mc_ctx *amd_ctx;
414 struct asoc_sdw_mc_private *ctx;
415 int amp_num = 0, i;
416 int ret;
417
418 amd_ctx = devm_kzalloc(&pdev->dev, sizeof(*amd_ctx), GFP_KERNEL);
419 if (!amd_ctx)
420 return -ENOMEM;
421
422 amd_ctx->acp_rev = mach->mach_params.subsystem_rev;
423 amd_ctx->max_sdw_links = ACP63_SDW_MAX_LINKS;
424 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
425 if (!ctx)
426 return -ENOMEM;
427 ctx->codec_info_list_count = asoc_sdw_get_codec_info_list_count();
428 ctx->private = amd_ctx;
429 card = &ctx->card;
430 card->dev = &pdev->dev;
431 card->name = "amd-soundwire";
432 card->owner = THIS_MODULE;
433 card->late_probe = asoc_sdw_card_late_probe;
434
435 snd_soc_card_set_drvdata(card, ctx);
436
437 dmi_check_system(soc_sdw_quirk_table);
438
439 if (quirk_override != -1) {
440 dev_info(card->dev, "Overriding quirk 0x%lx => 0x%x\n",
441 soc_sdw_quirk, quirk_override);
442 soc_sdw_quirk = quirk_override;
443 }
444
445 log_quirks(card->dev);
446
447 ctx->mc_quirk = soc_sdw_quirk;
448 dev_dbg(card->dev, "legacy quirk 0x%lx\n", ctx->mc_quirk);
449 /* reset amp_num to ensure amp_num++ starts from 0 in each probe */
450 for (i = 0; i < ctx->codec_info_list_count; i++)
451 codec_info_list[i].amp_num = 0;
452
453 ret = soc_card_dai_links_create(card);
454 if (ret < 0)
455 return ret;
456
457 /*
458 * the default amp_num is zero for each codec and
459 * amp_num will only be increased for active amp
460 * codecs on used platform
461 */
462 for (i = 0; i < ctx->codec_info_list_count; i++)
463 amp_num += codec_info_list[i].amp_num;
464
465 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
466 " cfg-amp:%d", amp_num);
467 if (!card->components)
468 return -ENOMEM;
469 if (mach->mach_params.dmic_num) {
470 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
471 "%s mic:dmic cfg-mics:%d",
472 card->components,
473 mach->mach_params.dmic_num);
474 if (!card->components)
475 return -ENOMEM;
476 }
477
478 /* Register the card */
479 ret = devm_snd_soc_register_card(card->dev, card);
480 if (ret) {
481 dev_err_probe(card->dev, ret, "snd_soc_register_card failed %d\n", ret);
482 asoc_sdw_mc_dailink_exit_loop(card);
483 return ret;
484 }
485
486 platform_set_drvdata(pdev, card);
487
488 return ret;
489 }
490
mc_remove(struct platform_device * pdev)491 static void mc_remove(struct platform_device *pdev)
492 {
493 struct snd_soc_card *card = platform_get_drvdata(pdev);
494
495 asoc_sdw_mc_dailink_exit_loop(card);
496 }
497
498 static const struct platform_device_id mc_id_table[] = {
499 { "amd_sdw", },
500 {}
501 };
502 MODULE_DEVICE_TABLE(platform, mc_id_table);
503
504 static struct platform_driver soc_sdw_driver = {
505 .driver = {
506 .name = "amd_sdw",
507 .pm = &snd_soc_pm_ops,
508 },
509 .probe = mc_probe,
510 .remove = mc_remove,
511 .id_table = mc_id_table,
512 };
513
514 module_platform_driver(soc_sdw_driver);
515
516 MODULE_DESCRIPTION("ASoC AMD SoundWire Legacy Generic Machine driver");
517 MODULE_AUTHOR("Vijendar Mukunda <[email protected]>");
518 MODULE_LICENSE("GPL");
519 MODULE_IMPORT_NS("SND_SOC_SDW_UTILS");
520 MODULE_IMPORT_NS("SND_SOC_AMD_SDW_MACH");
521