1 // SPDX-License-Identifier: GPL-2.0-only
4  * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
16 #include <sound/hdmi-codec.h>
21 #define HDMI_CODEC_CHMAP_IDX_UNKNOWN  -1
59 	{ .channels = 2,
64 /* Channel maps for multi-channel playbacks, up to 8 n_ch */
66 	{ .channels = 2, /* CA_ID 0x00 */
68 	{ .channels = 4, /* CA_ID 0x01 */
71 	{ .channels = 4, /* CA_ID 0x02 */
74 	{ .channels = 4, /* CA_ID 0x03 */
77 	{ .channels = 6, /* CA_ID 0x04 */
80 	{ .channels = 6, /* CA_ID 0x05 */
83 	{ .channels = 6, /* CA_ID 0x06 */
86 	{ .channels = 6, /* CA_ID 0x07 */
89 	{ .channels = 6, /* CA_ID 0x08 */
92 	{ .channels = 6, /* CA_ID 0x09 */
95 	{ .channels = 6, /* CA_ID 0x0A */
98 	{ .channels = 6, /* CA_ID 0x0B */
101 	{ .channels = 8, /* CA_ID 0x0C */
105 	{ .channels = 8, /* CA_ID 0x0D */
109 	{ .channels = 8, /* CA_ID 0x0E */
113 	{ .channels = 8, /* CA_ID 0x0F */
117 	{ .channels = 8, /* CA_ID 0x10 */
121 	{ .channels = 8, /* CA_ID 0x11 */
125 	{ .channels = 8, /* CA_ID 0x12 */
129 	{ .channels = 8, /* CA_ID 0x13 */
133 	{ .channels = 8, /* CA_ID 0x14 */
137 	{ .channels = 8, /* CA_ID 0x15 */
141 	{ .channels = 8, /* CA_ID 0x16 */
145 	{ .channels = 8, /* CA_ID 0x17 */
149 	{ .channels = 8, /* CA_ID 0x18 */
153 	{ .channels = 8, /* CA_ID 0x19 */
157 	{ .channels = 8, /* CA_ID 0x1A */
161 	{ .channels = 8, /* CA_ID 0x1B */
165 	{ .channels = 8, /* CA_ID 0x1C */
169 	{ .channels = 8, /* CA_ID 0x1D */
173 	{ .channels = 8, /* CA_ID 0x1E */
177 	{ .channels = 8, /* CA_ID 0x1F */
292 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;  in hdmi_eld_ctl_info()
293 	uinfo->count = sizeof_field(struct hdmi_codec_priv, eld);  in hdmi_eld_ctl_info()
304 	memcpy(ucontrol->value.bytes.data, hcp->eld, sizeof(hcp->eld));  in hdmi_eld_ctl_get()
331 	spk_alloc = drm_eld_get_spk_alloc(hcp->eld);  in hdmi_codec_eld_chmap()
334 	/* Detect if only stereo supported, else return 8 channels mappings */  in hdmi_codec_eld_chmap()
335 	if ((spk_mask & ~(FL | FR)) && hcp->chmap_info->max_channels > 2)  in hdmi_codec_eld_chmap()
336 		hcp->chmap_info->chmap = hdmi_codec_8ch_chmaps;  in hdmi_codec_eld_chmap()
338 		hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps;  in hdmi_codec_eld_chmap()
342 					     unsigned char channels)  in hdmi_codec_get_ch_alloc_table_idx()  argument
349 	spk_alloc = drm_eld_get_spk_alloc(hcp->eld);  in hdmi_codec_get_ch_alloc_table_idx()
354 		if (!spk_alloc && cap->ca_id == 0)  in hdmi_codec_get_ch_alloc_table_idx()
356 		if (cap->n_ch != channels)  in hdmi_codec_get_ch_alloc_table_idx()
358 		if (!(cap->mask == (spk_mask & cap->mask)))  in hdmi_codec_get_ch_alloc_table_idx()
363 	return -EINVAL;  in hdmi_codec_get_ch_alloc_table_idx()
371 	struct hdmi_codec_priv *hcp = info->private_data;  in hdmi_codec_chmap_ctl_get()
373 	map = info->chmap[hcp->chmap_idx].map;  in hdmi_codec_chmap_ctl_get()
375 	for (i = 0; i < info->max_channels; i++) {  in hdmi_codec_chmap_ctl_get()
376 		if (hcp->chmap_idx == HDMI_CODEC_CHMAP_IDX_UNKNOWN)  in hdmi_codec_chmap_ctl_get()
377 			ucontrol->value.integer.value[i] = 0;  in hdmi_codec_chmap_ctl_get()
379 			ucontrol->value.integer.value[i] = map[i];  in hdmi_codec_chmap_ctl_get()
388 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;  in hdmi_codec_iec958_info()
389 	uinfo->count = 1;  in hdmi_codec_iec958_info()
399 	memcpy(ucontrol->value.iec958.status, hcp->iec_status,  in hdmi_codec_iec958_default_get()
400 	       sizeof(hcp->iec_status));  in hdmi_codec_iec958_default_get()
411 	memcpy(hcp->iec_status, ucontrol->value.iec958.status,  in hdmi_codec_iec958_default_put()
412 	       sizeof(hcp->iec_status));  in hdmi_codec_iec958_default_put()
420 	memset(ucontrol->value.iec958.status, 0xff,  in hdmi_codec_iec958_mask_get()
427 			      struct snd_soc_dai *dai)  in hdmi_codec_startup()  argument
429 	struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);  in hdmi_codec_startup()
430 	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;  in hdmi_codec_startup()
433 	mutex_lock(&hcp->lock);  in hdmi_codec_startup()
434 	if (hcp->busy) {  in hdmi_codec_startup()
435 		dev_err(dai->dev, "Only one simultaneous stream supported!\n");  in hdmi_codec_startup()
436 		mutex_unlock(&hcp->lock);  in hdmi_codec_startup()
437 		return -EINVAL;  in hdmi_codec_startup()
440 	if (hcp->hcd.ops->audio_startup) {  in hdmi_codec_startup()
441 		ret = hcp->hcd.ops->audio_startup(dai->dev->parent, hcp->hcd.data);  in hdmi_codec_startup()
446 	if (tx && hcp->hcd.ops->get_eld) {  in hdmi_codec_startup()
447 		ret = hcp->hcd.ops->get_eld(dai->dev->parent, hcp->hcd.data,  in hdmi_codec_startup()
448 					    hcp->eld, sizeof(hcp->eld));  in hdmi_codec_startup()
452 		ret = snd_pcm_hw_constraint_eld(substream->runtime, hcp->eld);  in hdmi_codec_startup()
460 	hcp->busy = true;  in hdmi_codec_startup()
463 	mutex_unlock(&hcp->lock);  in hdmi_codec_startup()
468 				struct snd_soc_dai *dai)  in hdmi_codec_shutdown()  argument
470 	struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);  in hdmi_codec_shutdown()
472 	hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;  in hdmi_codec_shutdown()
473 	hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data);  in hdmi_codec_shutdown()
475 	mutex_lock(&hcp->lock);  in hdmi_codec_shutdown()
476 	hcp->busy = false;  in hdmi_codec_shutdown()
477 	mutex_unlock(&hcp->lock);  in hdmi_codec_shutdown()
480 static int hdmi_codec_fill_codec_params(struct snd_soc_dai *dai,  in hdmi_codec_fill_codec_params()  argument
483 					unsigned int channels,  in hdmi_codec_fill_codec_params()  argument
486 	struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);  in hdmi_codec_fill_codec_params()
489 	/* Select a channel allocation that matches with ELD and pcm channels */  in hdmi_codec_fill_codec_params()
490 	idx = hdmi_codec_get_ch_alloc_table_idx(hcp, channels);  in hdmi_codec_fill_codec_params()
492 		dev_err(dai->dev, "Not able to map channels to speakers (%d)\n",  in hdmi_codec_fill_codec_params()
494 		hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;  in hdmi_codec_fill_codec_params()
500 	hdmi_audio_infoframe_init(&hp->cea);  in hdmi_codec_fill_codec_params()
501 	hp->cea.channels = channels;  in hdmi_codec_fill_codec_params()
502 	hp->cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM;  in hdmi_codec_fill_codec_params()
503 	hp->cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM;  in hdmi_codec_fill_codec_params()
504 	hp->cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM;  in hdmi_codec_fill_codec_params()
505 	hp->cea.channel_allocation = hdmi_codec_channel_alloc[idx].ca_id;  in hdmi_codec_fill_codec_params()
507 	hp->sample_width = sample_width;  in hdmi_codec_fill_codec_params()
508 	hp->sample_rate = sample_rate;  in hdmi_codec_fill_codec_params()
509 	hp->channels = channels;  in hdmi_codec_fill_codec_params()
511 	hcp->chmap_idx = hdmi_codec_channel_alloc[idx].ca_id;  in hdmi_codec_fill_codec_params()
518 				struct snd_soc_dai *dai)  in hdmi_codec_hw_params()  argument
520 	struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);  in hdmi_codec_hw_params()
521 	struct hdmi_codec_daifmt *cf = dai->playback_dma_data;  in hdmi_codec_hw_params()
532 	if (!hcp->hcd.ops->hw_params)  in hdmi_codec_hw_params()
535 	dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__,  in hdmi_codec_hw_params()
539 	ret = hdmi_codec_fill_codec_params(dai,  in hdmi_codec_hw_params()
547 	memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status));  in hdmi_codec_hw_params()
551 		dev_err(dai->dev, "Creating IEC958 channel status failed %d\n",  in hdmi_codec_hw_params()
556 	cf->bit_fmt = params_format(params);  in hdmi_codec_hw_params()
557 	return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data,  in hdmi_codec_hw_params()
562 			      struct snd_soc_dai *dai)  in hdmi_codec_prepare()  argument
564 	struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);  in hdmi_codec_prepare()
565 	struct hdmi_codec_daifmt *cf = dai->playback_dma_data;  in hdmi_codec_prepare()
566 	struct snd_pcm_runtime *runtime = substream->runtime;  in hdmi_codec_prepare()
567 	unsigned int channels = runtime->channels;  in hdmi_codec_prepare()  local
568 	unsigned int width = snd_pcm_format_width(runtime->format);  in hdmi_codec_prepare()
569 	unsigned int rate = runtime->rate;  in hdmi_codec_prepare()
573 	if (!hcp->hcd.ops->prepare)  in hdmi_codec_prepare()
576 	dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__,  in hdmi_codec_prepare()
577 		width, rate, channels);  in hdmi_codec_prepare()
579 	ret = hdmi_codec_fill_codec_params(dai, width, rate, channels, &hp);  in hdmi_codec_prepare()
583 	memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status));  in hdmi_codec_prepare()
587 		dev_err(dai->dev, "Creating IEC958 channel status failed %d\n",  in hdmi_codec_prepare()
592 	cf->bit_fmt = runtime->format;  in hdmi_codec_prepare()
593 	return hcp->hcd.ops->prepare(dai->dev->parent, hcp->hcd.data,  in hdmi_codec_prepare()
597 static int hdmi_codec_i2s_set_fmt(struct snd_soc_dai *dai,  in hdmi_codec_i2s_set_fmt()  argument
600 	struct hdmi_codec_daifmt *cf = dai->playback_dma_data;  in hdmi_codec_i2s_set_fmt()
607 		cf->bit_clk_provider = 1;  in hdmi_codec_i2s_set_fmt()
608 		cf->frame_clk_provider = 1;  in hdmi_codec_i2s_set_fmt()
611 		cf->frame_clk_provider = 1;  in hdmi_codec_i2s_set_fmt()
614 		cf->bit_clk_provider = 1;  in hdmi_codec_i2s_set_fmt()
619 		return -EINVAL;  in hdmi_codec_i2s_set_fmt()
626 		cf->frame_clk_inv = 1;  in hdmi_codec_i2s_set_fmt()
629 		cf->bit_clk_inv = 1;  in hdmi_codec_i2s_set_fmt()
632 		cf->frame_clk_inv = 1;  in hdmi_codec_i2s_set_fmt()
633 		cf->bit_clk_inv = 1;  in hdmi_codec_i2s_set_fmt()
639 		cf->fmt = HDMI_I2S;  in hdmi_codec_i2s_set_fmt()
642 		cf->fmt = HDMI_DSP_A;  in hdmi_codec_i2s_set_fmt()
645 		cf->fmt = HDMI_DSP_B;  in hdmi_codec_i2s_set_fmt()
648 		cf->fmt = HDMI_RIGHT_J;  in hdmi_codec_i2s_set_fmt()
651 		cf->fmt = HDMI_LEFT_J;  in hdmi_codec_i2s_set_fmt()
654 		cf->fmt = HDMI_AC97;  in hdmi_codec_i2s_set_fmt()
657 		dev_err(dai->dev, "Invalid DAI interface format\n");  in hdmi_codec_i2s_set_fmt()
658 		return -EINVAL;  in hdmi_codec_i2s_set_fmt()
664 static int hdmi_codec_mute(struct snd_soc_dai *dai, int mute, int direction)  in hdmi_codec_mute()  argument
666 	struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);  in hdmi_codec_mute()
674 	if (hcp->hcd.ops->mute_stream &&  in hdmi_codec_mute()
676 	     !hcp->hcd.ops->no_capture_mute))  in hdmi_codec_mute()
677 		return hcp->hcd.ops->mute_stream(dai->dev->parent,  in hdmi_codec_mute()
678 						 hcp->hcd.data,  in hdmi_codec_mute()
681 	return -ENOTSUPP;  in hdmi_codec_mute()
689  *	${LINUX}/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
732  * instance allowing the 32-bit formats enables 24-precision with CPU
733  * DAIs that do not support 24-bit formats. If the extra formats cause
767 			      struct snd_soc_dai *dai)  in hdmi_codec_pcm_new()  argument
769 	struct snd_soc_dai_driver *drv = dai->driver;  in hdmi_codec_pcm_new()
770 	struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);  in hdmi_codec_pcm_new()
774 	ret =  snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,  in hdmi_codec_pcm_new()
775 				      NULL, drv->playback.channels_max, 0,  in hdmi_codec_pcm_new()
776 				      &hcp->chmap_info);  in hdmi_codec_pcm_new()
781 	hcp->chmap_info->private_data = hcp;  in hdmi_codec_pcm_new()
782 	hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get;  in hdmi_codec_pcm_new()
785 	hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps;  in hdmi_codec_pcm_new()
786 	hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;  in hdmi_codec_pcm_new()
792 		kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component);  in hdmi_codec_pcm_new()
794 			return -ENOMEM;  in hdmi_codec_pcm_new()
796 		kctl->id.device = rtd->pcm->device;  in hdmi_codec_pcm_new()
797 		ret = snd_ctl_add(rtd->card->snd_card, kctl);  in hdmi_codec_pcm_new()
805 static int hdmi_dai_probe(struct snd_soc_dai *dai)  in hdmi_dai_probe()  argument
812 			.source = dai->driver->playback.stream_name,  in hdmi_dai_probe()
815 			.sink = dai->driver->capture.stream_name,  in hdmi_dai_probe()
821 	dapm = snd_soc_component_get_dapm(dai->component);  in hdmi_dai_probe()
826 	daifmt = devm_kzalloc(dai->dev, sizeof(*daifmt), GFP_KERNEL);  in hdmi_dai_probe()
828 		return -ENOMEM;  in hdmi_dai_probe()
830 	dai->playback_dma_data = daifmt;  in hdmi_dai_probe()
837 	if (hcp->jack && jack_status != hcp->jack_status) {  in hdmi_codec_jack_report()
838 		snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_LINEOUT);  in hdmi_codec_jack_report()
839 		hcp->jack_status = jack_status;  in hdmi_codec_jack_report()
848 		if (hcp->hcd.ops->get_eld) {  in plugged_cb()
849 			hcp->hcd.ops->get_eld(dev->parent, hcp->hcd.data,  in plugged_cb()
850 					    hcp->eld, sizeof(hcp->eld));  in plugged_cb()
855 		memset(hcp->eld, 0, sizeof(hcp->eld));  in plugged_cb()
864 	int ret = -ENOTSUPP;  in hdmi_codec_set_jack()
866 	if (hcp->hcd.ops->hook_plugged_cb) {  in hdmi_codec_set_jack()
867 		hcp->jack = jack;  in hdmi_codec_set_jack()
868 		ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent,  in hdmi_codec_set_jack()
869 						    hcp->hcd.data,  in hdmi_codec_set_jack()
871 						    component->dev);  in hdmi_codec_set_jack()
873 			hcp->jack = NULL;  in hdmi_codec_set_jack()
878 static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai)  in hdmi_dai_spdif_probe()  argument
883 	ret = hdmi_dai_probe(dai);  in hdmi_dai_spdif_probe()
887 	cf = dai->playback_dma_data;  in hdmi_dai_spdif_probe()
888 	cf->fmt = HDMI_SPDIF;  in hdmi_dai_spdif_probe()
894 	.name = "i2s-hifi",
918 	.name = "spdif-hifi",
943 	int ret = -ENOTSUPP; /* see snd_soc_get_dai_id() */  in hdmi_of_xlate_dai_id()
945 	if (hcp->hcd.ops->get_dai_id)  in hdmi_of_xlate_dai_id()
946 		ret = hcp->hcd.ops->get_dai_id(component, endpoint);  in hdmi_of_xlate_dai_id()
955 	if (hcp->hcd.ops->hook_plugged_cb)  in hdmi_remove()
956 		hcp->hcd.ops->hook_plugged_cb(component->dev->parent,  in hdmi_remove()
957 					      hcp->hcd.data, NULL, NULL);  in hdmi_remove()
973 	struct hdmi_codec_pdata *hcd = pdev->dev.platform_data;  in hdmi_codec_probe()
975 	struct device *dev = &pdev->dev;  in hdmi_codec_probe()
982 		return -EINVAL;  in hdmi_codec_probe()
985 	dai_count = hcd->i2s + hcd->spdif;  in hdmi_codec_probe()
986 	if (dai_count < 1 || !hcd->ops ||  in hdmi_codec_probe()
987 	    (!hcd->ops->hw_params && !hcd->ops->prepare) ||  in hdmi_codec_probe()
988 	    !hcd->ops->audio_shutdown) {  in hdmi_codec_probe()
990 		return -EINVAL;  in hdmi_codec_probe()
995 		return -ENOMEM;  in hdmi_codec_probe()
997 	hcp->hcd = *hcd;  in hdmi_codec_probe()
998 	mutex_init(&hcp->lock);  in hdmi_codec_probe()
1000 	ret = snd_pcm_create_iec958_consumer_default(hcp->iec_status,  in hdmi_codec_probe()
1001 						     sizeof(hcp->iec_status));  in hdmi_codec_probe()
1007 		return -ENOMEM;  in hdmi_codec_probe()
1009 	if (hcd->i2s) {  in hdmi_codec_probe()
1011 		daidrv[i].playback.channels_max = hcd->max_i2s_channels;  in hdmi_codec_probe()
1015 	if (hcd->spdif)  in hdmi_codec_probe()