1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright(c) 2015-18 Intel Corporation.
5 * hdac_hda.c - ASoC extensions to reuse the legacy HDA codec drivers
6 * with ASoC platform drivers. These APIs are called by the legacy HDA
7 * codec drivers using hdac_ext_bus_ops ops.
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_i915.h>
18 #include <sound/hda_codec.h>
19 #include <sound/hda_register.h>
23 #define STUB_FORMATS (SNDRV_PCM_FMTBIT_S8 | \
24 SNDRV_PCM_FMTBIT_U8 | \
25 SNDRV_PCM_FMTBIT_S16_LE | \
26 SNDRV_PCM_FMTBIT_U16_LE | \
27 SNDRV_PCM_FMTBIT_S24_LE | \
28 SNDRV_PCM_FMTBIT_U24_LE | \
29 SNDRV_PCM_FMTBIT_S32_LE | \
30 SNDRV_PCM_FMTBIT_U32_LE | \
31 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
33 #define STUB_HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
34 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
35 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
36 SNDRV_PCM_RATE_192000)
38 static int hdac_hda_dai_open(struct snd_pcm_substream *substream,
39 struct snd_soc_dai *dai);
40 static void hdac_hda_dai_close(struct snd_pcm_substream *substream,
41 struct snd_soc_dai *dai);
42 static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream,
43 struct snd_soc_dai *dai);
44 static int hdac_hda_dai_hw_params(struct snd_pcm_substream *substream,
45 struct snd_pcm_hw_params *params,
46 struct snd_soc_dai *dai);
47 static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream,
48 struct snd_soc_dai *dai);
49 static int hdac_hda_dai_set_stream(struct snd_soc_dai *dai, void *stream,
51 static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt,
52 struct snd_soc_dai *dai);
54 static const struct snd_soc_dai_ops hdac_hda_dai_ops = {
55 .startup = hdac_hda_dai_open,
56 .shutdown = hdac_hda_dai_close,
57 .prepare = hdac_hda_dai_prepare,
58 .hw_params = hdac_hda_dai_hw_params,
59 .hw_free = hdac_hda_dai_hw_free,
60 .set_stream = hdac_hda_dai_set_stream,
63 static struct snd_soc_dai_driver hdac_hda_dais[] = {
65 .id = HDAC_ANALOG_DAI_ID,
66 .name = "Analog Codec DAI",
67 .ops = &hdac_hda_dai_ops,
69 .stream_name = "Analog Codec Playback",
72 .rates = SNDRV_PCM_RATE_8000_192000,
73 .formats = STUB_FORMATS,
77 .stream_name = "Analog Codec Capture",
80 .rates = SNDRV_PCM_RATE_8000_192000,
81 .formats = STUB_FORMATS,
86 .id = HDAC_DIGITAL_DAI_ID,
87 .name = "Digital Codec DAI",
88 .ops = &hdac_hda_dai_ops,
90 .stream_name = "Digital Codec Playback",
93 .rates = SNDRV_PCM_RATE_8000_192000,
94 .formats = STUB_FORMATS,
98 .stream_name = "Digital Codec Capture",
101 .rates = SNDRV_PCM_RATE_8000_192000,
102 .formats = STUB_FORMATS,
107 .id = HDAC_ALT_ANALOG_DAI_ID,
108 .name = "Alt Analog Codec DAI",
109 .ops = &hdac_hda_dai_ops,
111 .stream_name = "Alt Analog Codec Playback",
114 .rates = SNDRV_PCM_RATE_8000_192000,
115 .formats = STUB_FORMATS,
119 .stream_name = "Alt Analog Codec Capture",
122 .rates = SNDRV_PCM_RATE_8000_192000,
123 .formats = STUB_FORMATS,
128 .id = HDAC_HDMI_0_DAI_ID,
129 .name = "intel-hdmi-hifi1",
130 .ops = &hdac_hda_dai_ops,
132 .stream_name = "hifi1",
135 .rates = STUB_HDMI_RATES,
136 .formats = STUB_FORMATS,
141 .id = HDAC_HDMI_1_DAI_ID,
142 .name = "intel-hdmi-hifi2",
143 .ops = &hdac_hda_dai_ops,
145 .stream_name = "hifi2",
148 .rates = STUB_HDMI_RATES,
149 .formats = STUB_FORMATS,
154 .id = HDAC_HDMI_2_DAI_ID,
155 .name = "intel-hdmi-hifi3",
156 .ops = &hdac_hda_dai_ops,
158 .stream_name = "hifi3",
161 .rates = STUB_HDMI_RATES,
162 .formats = STUB_FORMATS,
167 .id = HDAC_HDMI_3_DAI_ID,
168 .name = "intel-hdmi-hifi4",
169 .ops = &hdac_hda_dai_ops,
171 .stream_name = "hifi4",
174 .rates = STUB_HDMI_RATES,
175 .formats = STUB_FORMATS,
182 static int hdac_hda_dai_set_stream(struct snd_soc_dai *dai,
183 void *stream, int direction)
185 struct snd_soc_component *component = dai->component;
186 struct hdac_hda_priv *hda_pvt;
187 struct hdac_hda_pcm *pcm;
188 struct hdac_stream *hstream;
193 hda_pvt = snd_soc_component_get_drvdata(component);
194 pcm = &hda_pvt->pcm[dai->id];
195 hstream = (struct hdac_stream *)stream;
197 pcm->stream_tag[direction] = hstream->stream_tag;
202 static int hdac_hda_dai_hw_params(struct snd_pcm_substream *substream,
203 struct snd_pcm_hw_params *params,
204 struct snd_soc_dai *dai)
206 struct snd_soc_component *component = dai->component;
207 struct hdac_hda_priv *hda_pvt;
208 unsigned int format_val;
211 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
212 maxbps = dai->driver->playback.sig_bits;
214 maxbps = dai->driver->capture.sig_bits;
216 hda_pvt = snd_soc_component_get_drvdata(component);
217 format_val = snd_hdac_calc_stream_format(params_rate(params),
218 params_channels(params),
219 params_format(params),
224 "invalid format_val, rate=%d, ch=%d, format=%d, maxbps=%d\n",
225 params_rate(params), params_channels(params),
226 params_format(params), maxbps);
231 hda_pvt->pcm[dai->id].format_val[substream->stream] = format_val;
235 static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream,
236 struct snd_soc_dai *dai)
238 struct snd_soc_component *component = dai->component;
239 struct hdac_hda_priv *hda_pvt;
240 struct hda_pcm_stream *hda_stream;
243 hda_pvt = snd_soc_component_get_drvdata(component);
244 pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
248 hda_stream = &pcm->stream[substream->stream];
249 snd_hda_codec_cleanup(&hda_pvt->codec, hda_stream, substream);
254 static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream,
255 struct snd_soc_dai *dai)
257 struct snd_soc_component *component = dai->component;
258 struct hda_pcm_stream *hda_stream;
259 struct hdac_hda_priv *hda_pvt;
260 struct hdac_device *hdev;
261 unsigned int format_val;
266 hda_pvt = snd_soc_component_get_drvdata(component);
267 hdev = &hda_pvt->codec.core;
268 pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
272 hda_stream = &pcm->stream[substream->stream];
274 stream = hda_pvt->pcm[dai->id].stream_tag[substream->stream];
275 format_val = hda_pvt->pcm[dai->id].format_val[substream->stream];
277 ret = snd_hda_codec_prepare(&hda_pvt->codec, hda_stream,
278 stream, format_val, substream);
280 dev_err(&hdev->dev, "codec prepare failed %d\n", ret);
285 static int hdac_hda_dai_open(struct snd_pcm_substream *substream,
286 struct snd_soc_dai *dai)
288 struct snd_soc_component *component = dai->component;
289 struct hdac_hda_priv *hda_pvt;
290 struct hda_pcm_stream *hda_stream;
293 hda_pvt = snd_soc_component_get_drvdata(component);
294 pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
298 snd_hda_codec_pcm_get(pcm);
300 hda_stream = &pcm->stream[substream->stream];
302 return hda_stream->ops.open(hda_stream, &hda_pvt->codec, substream);
305 static void hdac_hda_dai_close(struct snd_pcm_substream *substream,
306 struct snd_soc_dai *dai)
308 struct snd_soc_component *component = dai->component;
309 struct hdac_hda_priv *hda_pvt;
310 struct hda_pcm_stream *hda_stream;
313 hda_pvt = snd_soc_component_get_drvdata(component);
314 pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
318 hda_stream = &pcm->stream[substream->stream];
320 hda_stream->ops.close(hda_stream, &hda_pvt->codec, substream);
322 snd_hda_codec_pcm_put(pcm);
325 static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt,
326 struct snd_soc_dai *dai)
328 struct hda_codec *hcodec = &hda_pvt->codec;
329 struct hda_pcm *cpcm;
330 const char *pcm_name;
333 * map DAI ID to the closest matching PCM name, using the naming
334 * scheme used by hda-codec snd_hda_gen_build_pcms() and for
335 * HDMI in hda_codec patch_hdmi.c)
339 case HDAC_ANALOG_DAI_ID:
342 case HDAC_DIGITAL_DAI_ID:
343 pcm_name = "Digital";
345 case HDAC_ALT_ANALOG_DAI_ID:
346 pcm_name = "Alt Analog";
348 case HDAC_HDMI_0_DAI_ID:
351 case HDAC_HDMI_1_DAI_ID:
354 case HDAC_HDMI_2_DAI_ID:
357 case HDAC_HDMI_3_DAI_ID:
361 dev_err(&hcodec->core.dev, "invalid dai id %d\n", dai->id);
365 list_for_each_entry(cpcm, &hcodec->pcm_list_head, list) {
366 if (strstr(cpcm->name, pcm_name)) {
367 if (strcmp(pcm_name, "Analog") == 0) {
368 if (strstr(cpcm->name, "Alt Analog"))
375 dev_err(&hcodec->core.dev, "didn't find PCM for DAI %s\n", dai->name);
379 static bool is_hdmi_codec(struct hda_codec *hcodec)
381 struct hda_pcm *cpcm;
383 list_for_each_entry(cpcm, &hcodec->pcm_list_head, list) {
384 if (cpcm->pcm_type == HDA_PCM_TYPE_HDMI)
391 static int hdac_hda_codec_probe(struct snd_soc_component *component)
393 struct hdac_hda_priv *hda_pvt =
394 snd_soc_component_get_drvdata(component);
395 struct snd_soc_dapm_context *dapm =
396 snd_soc_component_get_dapm(component);
397 struct hdac_device *hdev = &hda_pvt->codec.core;
398 struct hda_codec *hcodec = &hda_pvt->codec;
399 struct hdac_ext_link *hlink;
400 hda_codec_patch_t patch;
403 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
405 dev_err(&hdev->dev, "hdac link not found\n");
409 snd_hdac_ext_bus_link_get(hdev->bus, hlink);
412 * Ensure any HDA display is powered at codec probe.
413 * After snd_hda_codec_device_new(), display power is
414 * managed by runtime PM.
416 if (hda_pvt->need_display_power)
417 snd_hdac_display_power(hdev->bus,
418 HDA_CODEC_IDX_CONTROLLER, true);
420 ret = snd_hda_codec_device_new(hcodec->bus, component->card->snd_card,
421 hdev->addr, hcodec, true);
423 dev_err(&hdev->dev, "failed to create hda codec %d\n", ret);
427 * Overwrite type to HDA_DEV_ASOC since it is a ASoC driver
428 * hda_codec.c will check this flag to determine if unregister
431 hdev->type = HDA_DEV_ASOC;
434 * snd_hda_codec_device_new decrements the usage count so call get pm
435 * else the device will be powered off
437 pm_runtime_get_noresume(&hdev->dev);
439 hcodec->bus->card = dapm->card->snd_card;
441 ret = snd_hda_codec_set_name(hcodec, hcodec->preset->name);
443 dev_err(&hdev->dev, "name failed %s\n", hcodec->preset->name);
447 ret = snd_hdac_regmap_init(&hcodec->core);
449 dev_err(&hdev->dev, "regmap init failed\n");
453 patch = (hda_codec_patch_t)hcodec->preset->driver_data;
457 dev_err(&hdev->dev, "patch failed %d\n", ret);
461 dev_dbg(&hdev->dev, "no patch file found\n");
464 /* configure codec for 1:1 PCM:DAI mapping */
465 hcodec->mst_no_extra_pcms = 1;
467 ret = snd_hda_codec_parse_pcms(hcodec);
469 dev_err(&hdev->dev, "unable to map pcms to dai %d\n", ret);
473 /* HDMI controls need to be created in machine drivers */
474 if (!is_hdmi_codec(hcodec)) {
475 ret = snd_hda_codec_build_controls(hcodec);
477 dev_err(&hdev->dev, "unable to create controls %d\n",
483 hcodec->core.lazy_cache = true;
485 if (hda_pvt->need_display_power)
486 snd_hdac_display_power(hdev->bus,
487 HDA_CODEC_IDX_CONTROLLER, false);
489 /* match for forbid call in snd_hda_codec_device_new() */
490 pm_runtime_allow(&hdev->dev);
493 * hdac_device core already sets the state to active and calls
494 * get_noresume. So enable runtime and set the device to suspend.
495 * pm_runtime_enable is also called during codec registeration
497 pm_runtime_put(&hdev->dev);
498 pm_runtime_suspend(&hdev->dev);
503 if (hcodec->patch_ops.free)
504 hcodec->patch_ops.free(hcodec);
506 snd_hdac_regmap_exit(hdev);
508 pm_runtime_put(&hdev->dev);
510 snd_hdac_ext_bus_link_put(hdev->bus, hlink);
514 static void hdac_hda_codec_remove(struct snd_soc_component *component)
516 struct hdac_hda_priv *hda_pvt =
517 snd_soc_component_get_drvdata(component);
518 struct hdac_device *hdev = &hda_pvt->codec.core;
519 struct hda_codec *codec = &hda_pvt->codec;
520 struct hdac_ext_link *hlink = NULL;
522 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
524 dev_err(&hdev->dev, "hdac link not found\n");
528 pm_runtime_disable(&hdev->dev);
529 snd_hdac_ext_bus_link_put(hdev->bus, hlink);
531 if (codec->patch_ops.free)
532 codec->patch_ops.free(codec);
534 snd_hda_codec_cleanup_for_unbind(codec);
537 static const struct snd_soc_dapm_route hdac_hda_dapm_routes[] = {
538 {"AIF1TX", NULL, "Codec Input Pin1"},
539 {"AIF2TX", NULL, "Codec Input Pin2"},
540 {"AIF3TX", NULL, "Codec Input Pin3"},
542 {"Codec Output Pin1", NULL, "AIF1RX"},
543 {"Codec Output Pin2", NULL, "AIF2RX"},
544 {"Codec Output Pin3", NULL, "AIF3RX"},
547 static const struct snd_soc_dapm_widget hdac_hda_dapm_widgets[] = {
548 /* Audio Interface */
549 SND_SOC_DAPM_AIF_IN("AIF1RX", "Analog Codec Playback", 0,
551 SND_SOC_DAPM_AIF_IN("AIF2RX", "Digital Codec Playback", 0,
553 SND_SOC_DAPM_AIF_IN("AIF3RX", "Alt Analog Codec Playback", 0,
555 SND_SOC_DAPM_AIF_OUT("AIF1TX", "Analog Codec Capture", 0,
557 SND_SOC_DAPM_AIF_OUT("AIF2TX", "Digital Codec Capture", 0,
559 SND_SOC_DAPM_AIF_OUT("AIF3TX", "Alt Analog Codec Capture", 0,
563 SND_SOC_DAPM_INPUT("Codec Input Pin1"),
564 SND_SOC_DAPM_INPUT("Codec Input Pin2"),
565 SND_SOC_DAPM_INPUT("Codec Input Pin3"),
568 SND_SOC_DAPM_OUTPUT("Codec Output Pin1"),
569 SND_SOC_DAPM_OUTPUT("Codec Output Pin2"),
570 SND_SOC_DAPM_OUTPUT("Codec Output Pin3"),
573 static const struct snd_soc_component_driver hdac_hda_codec = {
574 .probe = hdac_hda_codec_probe,
575 .remove = hdac_hda_codec_remove,
576 .dapm_widgets = hdac_hda_dapm_widgets,
577 .num_dapm_widgets = ARRAY_SIZE(hdac_hda_dapm_widgets),
578 .dapm_routes = hdac_hda_dapm_routes,
579 .num_dapm_routes = ARRAY_SIZE(hdac_hda_dapm_routes),
580 .idle_bias_on = false,
584 static int hdac_hda_dev_probe(struct hdac_device *hdev)
586 struct hdac_ext_link *hlink;
587 struct hdac_hda_priv *hda_pvt;
590 /* hold the ref while we probe */
591 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
593 dev_err(&hdev->dev, "hdac link not found\n");
596 snd_hdac_ext_bus_link_get(hdev->bus, hlink);
598 hda_pvt = hdac_to_hda_priv(hdev);
602 /* ASoC specific initialization */
603 ret = devm_snd_soc_register_component(&hdev->dev,
604 &hdac_hda_codec, hdac_hda_dais,
605 ARRAY_SIZE(hdac_hda_dais));
607 dev_err(&hdev->dev, "failed to register HDA codec %d\n", ret);
611 dev_set_drvdata(&hdev->dev, hda_pvt);
612 snd_hdac_ext_bus_link_put(hdev->bus, hlink);
617 static int hdac_hda_dev_remove(struct hdac_device *hdev)
620 * Resources are freed in hdac_hda_codec_remove(). This
621 * function is kept to keep hda_codec_driver_remove() happy.
626 static struct hdac_ext_bus_ops hdac_ops = {
627 .hdev_attach = hdac_hda_dev_probe,
628 .hdev_detach = hdac_hda_dev_remove,
631 struct hdac_ext_bus_ops *snd_soc_hdac_hda_get_ops(void)
635 EXPORT_SYMBOL_GPL(snd_soc_hdac_hda_get_ops);
637 MODULE_LICENSE("GPL v2");
638 MODULE_DESCRIPTION("ASoC Extensions for legacy HDA Drivers");
639 MODULE_AUTHOR("Rakesh Ughreja<rakesh.a.ughreja@intel.com>");