1 // SPDX-License-Identifier: GPL-2.0-only
2 // Copyright(c) 2024 Advanced Micro Devices, Inc.
3
4 /*
5 * acp-sdw-sof-mach - ASoC 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 sof_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
24 static void log_quirks(struct device *dev)
25 {
26 if (SOC_JACK_JDSRC(sof_sdw_quirk))
27 dev_dbg(dev, "quirk realtek,jack-detect-source %ld\n",
28 SOC_JACK_JDSRC(sof_sdw_quirk));
29 if (sof_sdw_quirk & ASOC_SDW_ACP_DMIC)
30 dev_dbg(dev, "quirk SOC_SDW_ACP_DMIC enabled\n");
31 }
32
33 static int sof_sdw_quirk_cb(const struct dmi_system_id *id)
34 {
35 sof_sdw_quirk = (unsigned long)id->driver_data;
36 return 1;
37 }
38
39 static const struct dmi_system_id sof_sdw_quirk_table[] = {
40 {
41 .callback = sof_sdw_quirk_cb,
42 .matches = {
43 DMI_MATCH(DMI_SYS_VENDOR, "AMD"),
44 DMI_MATCH(DMI_PRODUCT_NAME, "Birman-PHX"),
45 },
46 .driver_data = (void *)RT711_JD2,
47 },
48 {}
49 };
50
51 static struct snd_soc_dai_link_component platform_component[] = {
52 {
53 /* name might be overridden during probe */
54 .name = "0000:04:00.5",
55 }
56 };
57
58 static const struct snd_soc_ops sdw_ops = {
59 .startup = asoc_sdw_startup,
60 .prepare = asoc_sdw_prepare,
61 .trigger = asoc_sdw_trigger,
62 .hw_params = asoc_sdw_hw_params,
63 .hw_free = asoc_sdw_hw_free,
64 .shutdown = asoc_sdw_shutdown,
65 };
66
67 static int get_acp63_cpu_pin_id(u32 sdw_link_id, int be_id, int *cpu_pin_id, struct device *dev)
68 {
69 switch (sdw_link_id) {
70 case AMD_SDW0:
71 switch (be_id) {
72 case SOC_SDW_JACK_OUT_DAI_ID:
73 *cpu_pin_id = ACP63_SW0_AUDIO0_TX;
74 break;
75 case SOC_SDW_JACK_IN_DAI_ID:
76 *cpu_pin_id = ACP63_SW0_AUDIO0_RX;
77 break;
78 case SOC_SDW_AMP_OUT_DAI_ID:
79 *cpu_pin_id = ACP63_SW0_AUDIO1_TX;
80 break;
81 case SOC_SDW_AMP_IN_DAI_ID:
82 *cpu_pin_id = ACP63_SW0_AUDIO1_RX;
83 break;
84 case SOC_SDW_DMIC_DAI_ID:
85 *cpu_pin_id = ACP63_SW0_AUDIO2_RX;
86 break;
87 default:
88 dev_err(dev, "Invalid be id:%d\n", be_id);
89 return -EINVAL;
90 }
91 break;
92 case AMD_SDW1:
93 switch (be_id) {
94 case SOC_SDW_JACK_OUT_DAI_ID:
95 case SOC_SDW_AMP_OUT_DAI_ID:
96 *cpu_pin_id = ACP63_SW1_AUDIO0_TX;
97 break;
98 case SOC_SDW_JACK_IN_DAI_ID:
99 case SOC_SDW_AMP_IN_DAI_ID:
100 case SOC_SDW_DMIC_DAI_ID:
101 *cpu_pin_id = ACP63_SW1_AUDIO0_RX;
102 break;
103 default:
104 dev_err(dev, "invalid be_id:%d\n", be_id);
105 return -EINVAL;
106 }
107 break;
108 default:
109 dev_err(dev, "Invalid link id:%d\n", sdw_link_id);
110 return -EINVAL;
111 }
112 return 0;
113 }
114
115 static const char * const type_strings[] = {"SimpleJack", "SmartAmp", "SmartMic"};
116
117 static int create_sdw_dailink(struct snd_soc_card *card,
118 struct asoc_sdw_dailink *sof_dai,
119 struct snd_soc_dai_link **dai_links,
120 int *be_id, struct snd_soc_codec_conf **codec_conf)
121 {
122 struct device *dev = card->dev;
123 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
124 struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private;
125 struct asoc_sdw_endpoint *sof_end;
126 int cpu_pin_id;
127 int stream;
128 int ret;
129
130 list_for_each_entry(sof_end, &sof_dai->endpoints, list) {
131 if (sof_end->name_prefix) {
132 (*codec_conf)->dlc.name = sof_end->codec_name;
133 (*codec_conf)->name_prefix = sof_end->name_prefix;
134 (*codec_conf)++;
135 }
136
137 if (sof_end->include_sidecar) {
138 ret = sof_end->codec_info->add_sidecar(card, dai_links, codec_conf);
139 if (ret)
140 return ret;
141 }
142 }
143
144 for_each_pcm_streams(stream) {
145 static const char * const sdw_stream_name[] = {
146 "SDW%d-PIN%d-PLAYBACK",
147 "SDW%d-PIN%d-CAPTURE",
148 "SDW%d-PIN%d-PLAYBACK-%s",
149 "SDW%d-PIN%d-CAPTURE-%s",
150 };
151 struct snd_soc_dai_link_ch_map *codec_maps;
152 struct snd_soc_dai_link_component *codecs;
153 struct snd_soc_dai_link_component *cpus;
154 int num_cpus = hweight32(sof_dai->link_mask[stream]);
155 int num_codecs = sof_dai->num_devs[stream];
156 int playback, capture;
157 int i = 0, j = 0;
158 char *name;
159
160 if (!sof_dai->num_devs[stream])
161 continue;
162
163 sof_end = list_first_entry(&sof_dai->endpoints,
164 struct asoc_sdw_endpoint, list);
165
166 *be_id = sof_end->dai_info->dailink[stream];
167 if (*be_id < 0) {
168 dev_err(dev, "Invalid dailink id %d\n", *be_id);
169 return -EINVAL;
170 }
171
172 switch (amd_ctx->acp_rev) {
173 case ACP63_PCI_REV:
174 ret = get_acp63_cpu_pin_id(ffs(sof_end->link_mask - 1),
175 *be_id, &cpu_pin_id, dev);
176 if (ret)
177 return ret;
178 break;
179 default:
180 return -EINVAL;
181 }
182 /* create stream name according to first link id */
183 if (ctx->append_dai_type) {
184 name = devm_kasprintf(dev, GFP_KERNEL,
185 sdw_stream_name[stream + 2],
186 ffs(sof_end->link_mask) - 1,
187 cpu_pin_id,
188 type_strings[sof_end->dai_info->dai_type]);
189 } else {
190 name = devm_kasprintf(dev, GFP_KERNEL,
191 sdw_stream_name[stream],
192 ffs(sof_end->link_mask) - 1,
193 cpu_pin_id);
194 }
195 if (!name)
196 return -ENOMEM;
197
198 cpus = devm_kcalloc(dev, num_cpus, sizeof(*cpus), GFP_KERNEL);
199 if (!cpus)
200 return -ENOMEM;
201
202 codecs = devm_kcalloc(dev, num_codecs, sizeof(*codecs), GFP_KERNEL);
203 if (!codecs)
204 return -ENOMEM;
205
206 codec_maps = devm_kcalloc(dev, num_codecs, sizeof(*codec_maps), GFP_KERNEL);
207 if (!codec_maps)
208 return -ENOMEM;
209
210 list_for_each_entry(sof_end, &sof_dai->endpoints, list) {
211 if (!sof_end->dai_info->direction[stream])
212 continue;
213
214 int link_num = ffs(sof_end->link_mask) - 1;
215
216 cpus[i].dai_name = devm_kasprintf(dev, GFP_KERNEL,
217 "SDW%d Pin%d",
218 link_num, cpu_pin_id);
219 dev_dbg(dev, "cpu[%d].dai_name:%s\n", i, cpus[i].dai_name);
220 if (!cpus[i].dai_name)
221 return -ENOMEM;
222
223 codec_maps[j].cpu = i;
224 codec_maps[j].codec = j;
225
226 codecs[j].name = sof_end->codec_name;
227 codecs[j].dai_name = sof_end->dai_info->dai_name;
228 j++;
229 }
230
231 WARN_ON(j != num_codecs);
232
233 playback = (stream == SNDRV_PCM_STREAM_PLAYBACK);
234 capture = (stream == SNDRV_PCM_STREAM_CAPTURE);
235
236 asoc_sdw_init_dai_link(dev, *dai_links, be_id, name, playback, capture,
237 cpus, num_cpus, platform_component,
238 ARRAY_SIZE(platform_component), codecs, num_codecs,
239 asoc_sdw_rtd_init, &sdw_ops);
240
241 /*
242 * SoundWire DAILINKs use 'stream' functions and Bank Switch operations
243 * based on wait_for_completion(), tag them as 'nonatomic'.
244 */
245 (*dai_links)->nonatomic = true;
246 (*dai_links)->ch_maps = codec_maps;
247
248 list_for_each_entry(sof_end, &sof_dai->endpoints, list) {
249 if (sof_end->dai_info->init)
250 sof_end->dai_info->init(card, *dai_links,
251 sof_end->codec_info,
252 playback);
253 }
254
255 (*dai_links)++;
256 }
257
258 return 0;
259 }
260
261 static int create_sdw_dailinks(struct snd_soc_card *card,
262 struct snd_soc_dai_link **dai_links, int *be_id,
263 struct asoc_sdw_dailink *sof_dais,
264 struct snd_soc_codec_conf **codec_conf)
265 {
266 int ret;
267
268 /* generate DAI links by each sdw link */
269 while (sof_dais->initialised) {
270 int current_be_id;
271
272 ret = create_sdw_dailink(card, sof_dais, dai_links,
273 ¤t_be_id, codec_conf);
274 if (ret)
275 return ret;
276
277 /* Update the be_id to match the highest ID used for SDW link */
278 if (*be_id < current_be_id)
279 *be_id = current_be_id;
280
281 sof_dais++;
282 }
283
284 return 0;
285 }
286
287 static int create_dmic_dailinks(struct snd_soc_card *card,
288 struct snd_soc_dai_link **dai_links, int *be_id)
289 {
290 struct device *dev = card->dev;
291 int ret;
292
293 ret = asoc_sdw_init_simple_dai_link(dev, *dai_links, be_id, "acp-dmic-codec",
294 0, 1, // DMIC only supports capture
295 "acp-sof-dmic", platform_component->name,
296 ARRAY_SIZE(platform_component),
297 "dmic-codec", "dmic-hifi",
298 asoc_sdw_dmic_init, NULL);
299 if (ret)
300 return ret;
301
302 (*dai_links)++;
303
304 return 0;
305 }
306
307 static int sof_card_dai_links_create(struct snd_soc_card *card)
308 {
309 struct device *dev = card->dev;
310 struct snd_soc_acpi_mach *mach = dev_get_platdata(card->dev);
311 int sdw_be_num = 0, dmic_num = 0;
312 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
313 struct snd_soc_acpi_mach_params *mach_params = &mach->mach_params;
314 struct snd_soc_codec_conf *codec_conf;
315 struct asoc_sdw_endpoint *sof_ends;
316 struct asoc_sdw_dailink *sof_dais;
317 struct snd_soc_dai_link *dai_links;
318 int num_devs = 0;
319 int num_ends = 0;
320 int num_links;
321 int be_id = 0;
322 int ret;
323
324 ret = asoc_sdw_count_sdw_endpoints(card, &num_devs, &num_ends);
325 if (ret < 0) {
326 dev_err(dev, "failed to count devices/endpoints: %d\n", ret);
327 return ret;
328 }
329
330 /* One per DAI link, worst case is a DAI link for every endpoint */
331 sof_dais = kcalloc(num_ends, sizeof(*sof_dais), GFP_KERNEL);
332 if (!sof_dais)
333 return -ENOMEM;
334
335 /* One per endpoint, ie. each DAI on each codec/amp */
336 sof_ends = kcalloc(num_ends, sizeof(*sof_ends), GFP_KERNEL);
337 if (!sof_ends) {
338 ret = -ENOMEM;
339 goto err_dai;
340 }
341
342 ret = asoc_sdw_parse_sdw_endpoints(card, sof_dais, sof_ends, &num_devs);
343 if (ret < 0)
344 goto err_end;
345
346 sdw_be_num = ret;
347
348 /* enable dmic */
349 if (sof_sdw_quirk & ASOC_SDW_ACP_DMIC || mach_params->dmic_num)
350 dmic_num = 1;
351
352 dev_dbg(dev, "sdw %d, dmic %d", sdw_be_num, dmic_num);
353
354 codec_conf = devm_kcalloc(dev, num_devs, sizeof(*codec_conf), GFP_KERNEL);
355 if (!codec_conf) {
356 ret = -ENOMEM;
357 goto err_end;
358 }
359
360 /* allocate BE dailinks */
361 num_links = sdw_be_num + dmic_num;
362 dai_links = devm_kcalloc(dev, num_links, sizeof(*dai_links), GFP_KERNEL);
363 if (!dai_links) {
364 ret = -ENOMEM;
365 goto err_end;
366 }
367
368 card->codec_conf = codec_conf;
369 card->num_configs = num_devs;
370 card->dai_link = dai_links;
371 card->num_links = num_links;
372
373 /* SDW */
374 if (sdw_be_num) {
375 ret = create_sdw_dailinks(card, &dai_links, &be_id,
376 sof_dais, &codec_conf);
377 if (ret)
378 goto err_end;
379 }
380
381 /* dmic */
382 if (dmic_num > 0) {
383 if (ctx->ignore_internal_dmic) {
384 dev_warn(dev, "Ignoring ACP DMIC\n");
385 } else {
386 ret = create_dmic_dailinks(card, &dai_links, &be_id);
387 if (ret)
388 goto err_end;
389 }
390 }
391
392 WARN_ON(codec_conf != card->codec_conf + card->num_configs);
393 WARN_ON(dai_links != card->dai_link + card->num_links);
394
395 err_end:
396 kfree(sof_ends);
397 err_dai:
398 kfree(sof_dais);
399
400 return ret;
401 }
402
403 static int mc_probe(struct platform_device *pdev)
404 {
405 struct snd_soc_acpi_mach *mach = dev_get_platdata(&pdev->dev);
406 struct snd_soc_card *card;
407 struct amd_mc_ctx *amd_ctx;
408 struct asoc_sdw_mc_private *ctx;
409 int amp_num = 0, i;
410 int ret;
411
412 amd_ctx = devm_kzalloc(&pdev->dev, sizeof(*amd_ctx), GFP_KERNEL);
413 if (!amd_ctx)
414 return -ENOMEM;
415
416 amd_ctx->acp_rev = mach->mach_params.subsystem_rev;
417 amd_ctx->max_sdw_links = ACP63_SDW_MAX_LINKS;
418 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
419 if (!ctx)
420 return -ENOMEM;
421 ctx->codec_info_list_count = asoc_sdw_get_codec_info_list_count();
422 ctx->private = amd_ctx;
423 card = &ctx->card;
424 card->dev = &pdev->dev;
425 card->name = "amd-soundwire";
426 card->owner = THIS_MODULE;
427 card->late_probe = asoc_sdw_card_late_probe;
428
429 snd_soc_card_set_drvdata(card, ctx);
430
431 dmi_check_system(sof_sdw_quirk_table);
432
433 if (quirk_override != -1) {
434 dev_info(card->dev, "Overriding quirk 0x%lx => 0x%x\n",
435 sof_sdw_quirk, quirk_override);
436 sof_sdw_quirk = quirk_override;
437 }
438
439 log_quirks(card->dev);
440
441 ctx->mc_quirk = sof_sdw_quirk;
442 /* reset amp_num to ensure amp_num++ starts from 0 in each probe */
443 for (i = 0; i < ctx->codec_info_list_count; i++)
444 codec_info_list[i].amp_num = 0;
445
446 ret = sof_card_dai_links_create(card);
447 if (ret < 0)
448 return ret;
449
450 /*
451 * the default amp_num is zero for each codec and
452 * amp_num will only be increased for active amp
453 * codecs on used platform
454 */
455 for (i = 0; i < ctx->codec_info_list_count; i++)
456 amp_num += codec_info_list[i].amp_num;
457
458 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
459 " cfg-amp:%d", amp_num);
460 if (!card->components)
461 return -ENOMEM;
462
463 /* Register the card */
464 ret = devm_snd_soc_register_card(card->dev, card);
465 if (ret) {
466 dev_err_probe(card->dev, ret, "snd_soc_register_card failed %d\n", ret);
467 asoc_sdw_mc_dailink_exit_loop(card);
468 return ret;
469 }
470
471 platform_set_drvdata(pdev, card);
472
473 return ret;
474 }
475
476 static void mc_remove(struct platform_device *pdev)
477 {
478 struct snd_soc_card *card = platform_get_drvdata(pdev);
479
480 asoc_sdw_mc_dailink_exit_loop(card);
481 }
482
483 static const struct platform_device_id mc_id_table[] = {
484 { "amd_sof_sdw", },
485 {}
486 };
487 MODULE_DEVICE_TABLE(platform, mc_id_table);
488
489 static struct platform_driver sof_sdw_driver = {
490 .driver = {
491 .name = "amd_sof_sdw",
492 .pm = &snd_soc_pm_ops,
493 },
494 .probe = mc_probe,
495 .remove = mc_remove,
496 .id_table = mc_id_table,
497 };
498
499 module_platform_driver(sof_sdw_driver);
500
501 MODULE_DESCRIPTION("ASoC AMD SoundWire Generic Machine driver");
502 MODULE_AUTHOR("Vijendar Mukunda <Vijendar.Mukunda@amd.com");
503 MODULE_LICENSE("GPL");
504 MODULE_IMPORT_NS(SND_SOC_SDW_UTILS);
505
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