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10#include <linux/init.h>
11#include <linux/delay.h>
12#include <linux/module.h>
13#include <linux/pm_runtime.h>
14#include <sound/pcm_params.h>
15#include <sound/soc.h>
16#include <sound/hdaudio_ext.h>
17#include <sound/hda_codec.h>
18#include <sound/hda_register.h>
19#include "hdac_hda.h"
20
21#define HDAC_ANALOG_DAI_ID 0
22#define HDAC_DIGITAL_DAI_ID 1
23#define HDAC_ALT_ANALOG_DAI_ID 2
24
25#define STUB_FORMATS (SNDRV_PCM_FMTBIT_S8 | \
26 SNDRV_PCM_FMTBIT_U8 | \
27 SNDRV_PCM_FMTBIT_S16_LE | \
28 SNDRV_PCM_FMTBIT_U16_LE | \
29 SNDRV_PCM_FMTBIT_S24_LE | \
30 SNDRV_PCM_FMTBIT_U24_LE | \
31 SNDRV_PCM_FMTBIT_S32_LE | \
32 SNDRV_PCM_FMTBIT_U32_LE | \
33 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
34
35static int hdac_hda_dai_open(struct snd_pcm_substream *substream,
36 struct snd_soc_dai *dai);
37static void hdac_hda_dai_close(struct snd_pcm_substream *substream,
38 struct snd_soc_dai *dai);
39static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream,
40 struct snd_soc_dai *dai);
41static int hdac_hda_dai_hw_params(struct snd_pcm_substream *substream,
42 struct snd_pcm_hw_params *params,
43 struct snd_soc_dai *dai);
44static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream,
45 struct snd_soc_dai *dai);
46static int hdac_hda_dai_set_tdm_slot(struct snd_soc_dai *dai,
47 unsigned int tx_mask, unsigned int rx_mask,
48 int slots, int slot_width);
49static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt,
50 struct snd_soc_dai *dai);
51
52static const struct snd_soc_dai_ops hdac_hda_dai_ops = {
53 .startup = hdac_hda_dai_open,
54 .shutdown = hdac_hda_dai_close,
55 .prepare = hdac_hda_dai_prepare,
56 .hw_params = hdac_hda_dai_hw_params,
57 .hw_free = hdac_hda_dai_hw_free,
58 .set_tdm_slot = hdac_hda_dai_set_tdm_slot,
59};
60
61static struct snd_soc_dai_driver hdac_hda_dais[] = {
62{
63 .id = HDAC_ANALOG_DAI_ID,
64 .name = "Analog Codec DAI",
65 .ops = &hdac_hda_dai_ops,
66 .playback = {
67 .stream_name = "Analog Codec Playback",
68 .channels_min = 1,
69 .channels_max = 16,
70 .rates = SNDRV_PCM_RATE_8000_192000,
71 .formats = STUB_FORMATS,
72 .sig_bits = 24,
73 },
74 .capture = {
75 .stream_name = "Analog Codec Capture",
76 .channels_min = 1,
77 .channels_max = 16,
78 .rates = SNDRV_PCM_RATE_8000_192000,
79 .formats = STUB_FORMATS,
80 .sig_bits = 24,
81 },
82},
83{
84 .id = HDAC_DIGITAL_DAI_ID,
85 .name = "Digital Codec DAI",
86 .ops = &hdac_hda_dai_ops,
87 .playback = {
88 .stream_name = "Digital Codec Playback",
89 .channels_min = 1,
90 .channels_max = 16,
91 .rates = SNDRV_PCM_RATE_8000_192000,
92 .formats = STUB_FORMATS,
93 .sig_bits = 24,
94 },
95 .capture = {
96 .stream_name = "Digital Codec Capture",
97 .channels_min = 1,
98 .channels_max = 16,
99 .rates = SNDRV_PCM_RATE_8000_192000,
100 .formats = STUB_FORMATS,
101 .sig_bits = 24,
102 },
103},
104{
105 .id = HDAC_ALT_ANALOG_DAI_ID,
106 .name = "Alt Analog Codec DAI",
107 .ops = &hdac_hda_dai_ops,
108 .playback = {
109 .stream_name = "Alt Analog Codec Playback",
110 .channels_min = 1,
111 .channels_max = 16,
112 .rates = SNDRV_PCM_RATE_8000_192000,
113 .formats = STUB_FORMATS,
114 .sig_bits = 24,
115 },
116 .capture = {
117 .stream_name = "Alt Analog Codec Capture",
118 .channels_min = 1,
119 .channels_max = 16,
120 .rates = SNDRV_PCM_RATE_8000_192000,
121 .formats = STUB_FORMATS,
122 .sig_bits = 24,
123 },
124}
125
126};
127
128static int hdac_hda_dai_set_tdm_slot(struct snd_soc_dai *dai,
129 unsigned int tx_mask, unsigned int rx_mask,
130 int slots, int slot_width)
131{
132 struct snd_soc_component *component = dai->component;
133 struct hdac_hda_priv *hda_pvt;
134 struct hdac_hda_pcm *pcm;
135
136 hda_pvt = snd_soc_component_get_drvdata(component);
137 pcm = &hda_pvt->pcm[dai->id];
138 if (tx_mask)
139 pcm[dai->id].stream_tag[SNDRV_PCM_STREAM_PLAYBACK] = tx_mask;
140 else
141 pcm[dai->id].stream_tag[SNDRV_PCM_STREAM_CAPTURE] = rx_mask;
142
143 return 0;
144}
145
146static int hdac_hda_dai_hw_params(struct snd_pcm_substream *substream,
147 struct snd_pcm_hw_params *params,
148 struct snd_soc_dai *dai)
149{
150 struct snd_soc_component *component = dai->component;
151 struct hdac_hda_priv *hda_pvt;
152 unsigned int format_val;
153 unsigned int maxbps;
154
155 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
156 maxbps = dai->driver->playback.sig_bits;
157 else
158 maxbps = dai->driver->capture.sig_bits;
159
160 hda_pvt = snd_soc_component_get_drvdata(component);
161 format_val = snd_hdac_calc_stream_format(params_rate(params),
162 params_channels(params),
163 params_format(params),
164 maxbps,
165 0);
166 if (!format_val) {
167 dev_err(dai->dev,
168 "invalid format_val, rate=%d, ch=%d, format=%d, maxbps=%d\n",
169 params_rate(params), params_channels(params),
170 params_format(params), maxbps);
171
172 return -EINVAL;
173 }
174
175 hda_pvt->pcm[dai->id].format_val[substream->stream] = format_val;
176 return 0;
177}
178
179static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream,
180 struct snd_soc_dai *dai)
181{
182 struct snd_soc_component *component = dai->component;
183 struct hdac_hda_priv *hda_pvt;
184 struct hda_pcm_stream *hda_stream;
185 struct hda_pcm *pcm;
186
187 hda_pvt = snd_soc_component_get_drvdata(component);
188 pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
189 if (!pcm)
190 return -EINVAL;
191
192 hda_stream = &pcm->stream[substream->stream];
193 snd_hda_codec_cleanup(&hda_pvt->codec, hda_stream, substream);
194
195 return 0;
196}
197
198static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream,
199 struct snd_soc_dai *dai)
200{
201 struct snd_soc_component *component = dai->component;
202 struct hda_pcm_stream *hda_stream;
203 struct hdac_hda_priv *hda_pvt;
204 struct hdac_device *hdev;
205 unsigned int format_val;
206 struct hda_pcm *pcm;
207 unsigned int stream;
208 int ret = 0;
209
210 hda_pvt = snd_soc_component_get_drvdata(component);
211 hdev = &hda_pvt->codec.core;
212 pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
213 if (!pcm)
214 return -EINVAL;
215
216 hda_stream = &pcm->stream[substream->stream];
217
218 stream = hda_pvt->pcm[dai->id].stream_tag[substream->stream];
219 format_val = hda_pvt->pcm[dai->id].format_val[substream->stream];
220
221 ret = snd_hda_codec_prepare(&hda_pvt->codec, hda_stream,
222 stream, format_val, substream);
223 if (ret < 0)
224 dev_err(&hdev->dev, "codec prepare failed %d\n", ret);
225
226 return ret;
227}
228
229static int hdac_hda_dai_open(struct snd_pcm_substream *substream,
230 struct snd_soc_dai *dai)
231{
232 struct snd_soc_component *component = dai->component;
233 struct hdac_hda_priv *hda_pvt;
234 struct hda_pcm_stream *hda_stream;
235 struct hda_pcm *pcm;
236 int ret;
237
238 hda_pvt = snd_soc_component_get_drvdata(component);
239 pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
240 if (!pcm)
241 return -EINVAL;
242
243 snd_hda_codec_pcm_get(pcm);
244
245 hda_stream = &pcm->stream[substream->stream];
246
247 ret = hda_stream->ops.open(hda_stream, &hda_pvt->codec, substream);
248 if (ret < 0)
249 snd_hda_codec_pcm_put(pcm);
250
251 return ret;
252}
253
254static void hdac_hda_dai_close(struct snd_pcm_substream *substream,
255 struct snd_soc_dai *dai)
256{
257 struct snd_soc_component *component = dai->component;
258 struct hdac_hda_priv *hda_pvt;
259 struct hda_pcm_stream *hda_stream;
260 struct hda_pcm *pcm;
261
262 hda_pvt = snd_soc_component_get_drvdata(component);
263 pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
264 if (!pcm)
265 return;
266
267 hda_stream = &pcm->stream[substream->stream];
268
269 hda_stream->ops.close(hda_stream, &hda_pvt->codec, substream);
270
271 snd_hda_codec_pcm_put(pcm);
272}
273
274static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt,
275 struct snd_soc_dai *dai)
276{
277 struct hda_codec *hcodec = &hda_pvt->codec;
278 struct hda_pcm *cpcm;
279 const char *pcm_name;
280
281 switch (dai->id) {
282 case HDAC_ANALOG_DAI_ID:
283 pcm_name = "Analog";
284 break;
285 case HDAC_DIGITAL_DAI_ID:
286 pcm_name = "Digital";
287 break;
288 case HDAC_ALT_ANALOG_DAI_ID:
289 pcm_name = "Alt Analog";
290 break;
291 default:
292 dev_err(&hcodec->core.dev, "invalid dai id %d\n", dai->id);
293 return NULL;
294 }
295
296 list_for_each_entry(cpcm, &hcodec->pcm_list_head, list) {
297 if (strpbrk(cpcm->name, pcm_name))
298 return cpcm;
299 }
300
301 dev_err(&hcodec->core.dev, "didn't find PCM for DAI %s\n", dai->name);
302 return NULL;
303}
304
305static int hdac_hda_codec_probe(struct snd_soc_component *component)
306{
307 struct hdac_hda_priv *hda_pvt =
308 snd_soc_component_get_drvdata(component);
309 struct snd_soc_dapm_context *dapm =
310 snd_soc_component_get_dapm(component);
311 struct hdac_device *hdev = &hda_pvt->codec.core;
312 struct hda_codec *hcodec = &hda_pvt->codec;
313 struct hdac_ext_link *hlink;
314 hda_codec_patch_t patch;
315 int ret;
316
317 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
318 if (!hlink) {
319 dev_err(&hdev->dev, "hdac link not found\n");
320 return -EIO;
321 }
322
323 snd_hdac_ext_bus_link_get(hdev->bus, hlink);
324
325 ret = snd_hda_codec_device_new(hcodec->bus, component->card->snd_card,
326 hdev->addr, hcodec);
327 if (ret < 0) {
328 dev_err(&hdev->dev, "failed to create hda codec %d\n", ret);
329 goto error_no_pm;
330 }
331
332
333
334
335
336 hdev->type = HDA_DEV_ASOC;
337
338
339
340
341
342 pm_runtime_get_noresume(&hdev->dev);
343
344 hcodec->bus->card = dapm->card->snd_card;
345
346 ret = snd_hda_codec_set_name(hcodec, hcodec->preset->name);
347 if (ret < 0) {
348 dev_err(&hdev->dev, "name failed %s\n", hcodec->preset->name);
349 goto error;
350 }
351
352 ret = snd_hdac_regmap_init(&hcodec->core);
353 if (ret < 0) {
354 dev_err(&hdev->dev, "regmap init failed\n");
355 goto error;
356 }
357
358 patch = (hda_codec_patch_t)hcodec->preset->driver_data;
359 if (patch) {
360 ret = patch(hcodec);
361 if (ret < 0) {
362 dev_err(&hdev->dev, "patch failed %d\n", ret);
363 goto error;
364 }
365 } else {
366 dev_dbg(&hdev->dev, "no patch file found\n");
367 }
368
369 ret = snd_hda_codec_parse_pcms(hcodec);
370 if (ret < 0) {
371 dev_err(&hdev->dev, "unable to map pcms to dai %d\n", ret);
372 goto error;
373 }
374
375 ret = snd_hda_codec_build_controls(hcodec);
376 if (ret < 0) {
377 dev_err(&hdev->dev, "unable to create controls %d\n", ret);
378 goto error;
379 }
380
381 hcodec->core.lazy_cache = true;
382
383
384
385
386
387
388 pm_runtime_put(&hdev->dev);
389 pm_runtime_suspend(&hdev->dev);
390
391 return 0;
392
393error:
394 pm_runtime_put(&hdev->dev);
395error_no_pm:
396 snd_hdac_ext_bus_link_put(hdev->bus, hlink);
397 return ret;
398}
399
400static void hdac_hda_codec_remove(struct snd_soc_component *component)
401{
402 struct hdac_hda_priv *hda_pvt =
403 snd_soc_component_get_drvdata(component);
404 struct hdac_device *hdev = &hda_pvt->codec.core;
405 struct hdac_ext_link *hlink = NULL;
406
407 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
408 if (!hlink) {
409 dev_err(&hdev->dev, "hdac link not found\n");
410 return;
411 }
412
413 snd_hdac_ext_bus_link_put(hdev->bus, hlink);
414 pm_runtime_disable(&hdev->dev);
415}
416
417static const struct snd_soc_dapm_route hdac_hda_dapm_routes[] = {
418 {"AIF1TX", NULL, "Codec Input Pin1"},
419 {"AIF2TX", NULL, "Codec Input Pin2"},
420 {"AIF3TX", NULL, "Codec Input Pin3"},
421
422 {"Codec Output Pin1", NULL, "AIF1RX"},
423 {"Codec Output Pin2", NULL, "AIF2RX"},
424 {"Codec Output Pin3", NULL, "AIF3RX"},
425};
426
427static const struct snd_soc_dapm_widget hdac_hda_dapm_widgets[] = {
428
429 SND_SOC_DAPM_AIF_IN("AIF1RX", "Analog Codec Playback", 0,
430 SND_SOC_NOPM, 0, 0),
431 SND_SOC_DAPM_AIF_IN("AIF2RX", "Digital Codec Playback", 0,
432 SND_SOC_NOPM, 0, 0),
433 SND_SOC_DAPM_AIF_IN("AIF3RX", "Alt Analog Codec Playback", 0,
434 SND_SOC_NOPM, 0, 0),
435 SND_SOC_DAPM_AIF_OUT("AIF1TX", "Analog Codec Capture", 0,
436 SND_SOC_NOPM, 0, 0),
437 SND_SOC_DAPM_AIF_OUT("AIF2TX", "Digital Codec Capture", 0,
438 SND_SOC_NOPM, 0, 0),
439 SND_SOC_DAPM_AIF_OUT("AIF3TX", "Alt Analog Codec Capture", 0,
440 SND_SOC_NOPM, 0, 0),
441
442
443 SND_SOC_DAPM_INPUT("Codec Input Pin1"),
444 SND_SOC_DAPM_INPUT("Codec Input Pin2"),
445 SND_SOC_DAPM_INPUT("Codec Input Pin3"),
446
447
448 SND_SOC_DAPM_OUTPUT("Codec Output Pin1"),
449 SND_SOC_DAPM_OUTPUT("Codec Output Pin2"),
450 SND_SOC_DAPM_OUTPUT("Codec Output Pin3"),
451};
452
453static const struct snd_soc_component_driver hdac_hda_codec = {
454 .probe = hdac_hda_codec_probe,
455 .remove = hdac_hda_codec_remove,
456 .idle_bias_on = false,
457 .dapm_widgets = hdac_hda_dapm_widgets,
458 .num_dapm_widgets = ARRAY_SIZE(hdac_hda_dapm_widgets),
459 .dapm_routes = hdac_hda_dapm_routes,
460 .num_dapm_routes = ARRAY_SIZE(hdac_hda_dapm_routes),
461};
462
463static int hdac_hda_dev_probe(struct hdac_device *hdev)
464{
465 struct hdac_ext_link *hlink;
466 struct hdac_hda_priv *hda_pvt;
467 int ret;
468
469
470 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
471 if (!hlink) {
472 dev_err(&hdev->dev, "hdac link not found\n");
473 return -EIO;
474 }
475 snd_hdac_ext_bus_link_get(hdev->bus, hlink);
476
477 hda_pvt = hdac_to_hda_priv(hdev);
478 if (!hda_pvt)
479 return -ENOMEM;
480
481
482 ret = devm_snd_soc_register_component(&hdev->dev,
483 &hdac_hda_codec, hdac_hda_dais,
484 ARRAY_SIZE(hdac_hda_dais));
485 if (ret < 0) {
486 dev_err(&hdev->dev, "failed to register HDA codec %d\n", ret);
487 return ret;
488 }
489
490 dev_set_drvdata(&hdev->dev, hda_pvt);
491 snd_hdac_ext_bus_link_put(hdev->bus, hlink);
492
493 return ret;
494}
495
496static int hdac_hda_dev_remove(struct hdac_device *hdev)
497{
498 return 0;
499}
500
501static struct hdac_ext_bus_ops hdac_ops = {
502 .hdev_attach = hdac_hda_dev_probe,
503 .hdev_detach = hdac_hda_dev_remove,
504};
505
506struct hdac_ext_bus_ops *snd_soc_hdac_hda_get_ops(void)
507{
508 return &hdac_ops;
509}
510EXPORT_SYMBOL_GPL(snd_soc_hdac_hda_get_ops);
511
512MODULE_LICENSE("GPL v2");
513MODULE_DESCRIPTION("ASoC Extensions for legacy HDA Drivers");
514MODULE_AUTHOR("Rakesh Ughreja<rakesh.a.ughreja@intel.com>");
515
