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>
22 #define HDMI_CODEC_CHMAP_IDX_UNKNOWN  -1
60 	{ .channels = 2,
65 /* Channel maps for multi-channel playbacks, up to 8 n_ch */
67 	{ .channels = 2, /* CA_ID 0x00 */
69 	{ .channels = 4, /* CA_ID 0x01 */
72 	{ .channels = 4, /* CA_ID 0x02 */
75 	{ .channels = 4, /* CA_ID 0x03 */
78 	{ .channels = 6, /* CA_ID 0x04 */
81 	{ .channels = 6, /* CA_ID 0x05 */
84 	{ .channels = 6, /* CA_ID 0x06 */
87 	{ .channels = 6, /* CA_ID 0x07 */
90 	{ .channels = 6, /* CA_ID 0x08 */
93 	{ .channels = 6, /* CA_ID 0x09 */
96 	{ .channels = 6, /* CA_ID 0x0A */
99 	{ .channels = 6, /* CA_ID 0x0B */
102 	{ .channels = 8, /* CA_ID 0x0C */
106 	{ .channels = 8, /* CA_ID 0x0D */
110 	{ .channels = 8, /* CA_ID 0x0E */
114 	{ .channels = 8, /* CA_ID 0x0F */
118 	{ .channels = 8, /* CA_ID 0x10 */
122 	{ .channels = 8, /* CA_ID 0x11 */
126 	{ .channels = 8, /* CA_ID 0x12 */
130 	{ .channels = 8, /* CA_ID 0x13 */
134 	{ .channels = 8, /* CA_ID 0x14 */
138 	{ .channels = 8, /* CA_ID 0x15 */
142 	{ .channels = 8, /* CA_ID 0x16 */
146 	{ .channels = 8, /* CA_ID 0x17 */
150 	{ .channels = 8, /* CA_ID 0x18 */
154 	{ .channels = 8, /* CA_ID 0x19 */
158 	{ .channels = 8, /* CA_ID 0x1A */
162 	{ .channels = 8, /* CA_ID 0x1B */
166 	{ .channels = 8, /* CA_ID 0x1C */
170 	{ .channels = 8, /* CA_ID 0x1D */
174 	{ .channels = 8, /* CA_ID 0x1E */
178 	{ .channels = 8, /* CA_ID 0x1F */
306 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;  in hdmi_eld_ctl_info()
307 	uinfo->count = sizeof_field(struct hdmi_codec_priv, eld);  in hdmi_eld_ctl_info()
318 	memcpy(ucontrol->value.bytes.data, hcp->eld, sizeof(hcp->eld));  in hdmi_eld_ctl_get()
345 	spk_alloc = drm_eld_get_spk_alloc(hcp->eld);  in hdmi_codec_eld_chmap()
348 	/* Detect if only stereo supported, else return 8 channels mappings */  in hdmi_codec_eld_chmap()
349 	if ((spk_mask & ~(FL | FR)) && hcp->chmap_info->max_channels > 2)  in hdmi_codec_eld_chmap()
350 		hcp->chmap_info->chmap = hdmi_codec_8ch_chmaps;  in hdmi_codec_eld_chmap()
352 		hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps;  in hdmi_codec_eld_chmap()
356 					     unsigned char channels)  in hdmi_codec_get_ch_alloc_table_idx()  argument
363 	spk_alloc = drm_eld_get_spk_alloc(hcp->eld);  in hdmi_codec_get_ch_alloc_table_idx()
368 		if (!spk_alloc && cap->ca_id == 0)  in hdmi_codec_get_ch_alloc_table_idx()
370 		if (cap->n_ch != channels)  in hdmi_codec_get_ch_alloc_table_idx()
372 		if (!(cap->mask == (spk_mask & cap->mask)))  in hdmi_codec_get_ch_alloc_table_idx()
377 	return -EINVAL;  in hdmi_codec_get_ch_alloc_table_idx()
385 	struct hdmi_codec_priv *hcp = info->private_data;  in hdmi_codec_chmap_ctl_get()
387 	if (hcp->chmap_idx != HDMI_CODEC_CHMAP_IDX_UNKNOWN)  in hdmi_codec_chmap_ctl_get()
388 		map = info->chmap[hcp->chmap_idx].map;  in hdmi_codec_chmap_ctl_get()
390 	for (i = 0; i < info->max_channels; i++) {  in hdmi_codec_chmap_ctl_get()
391 		if (hcp->chmap_idx == HDMI_CODEC_CHMAP_IDX_UNKNOWN)  in hdmi_codec_chmap_ctl_get()
392 			ucontrol->value.integer.value[i] = 0;  in hdmi_codec_chmap_ctl_get()
394 			ucontrol->value.integer.value[i] = map[i];  in hdmi_codec_chmap_ctl_get()
403 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;  in hdmi_codec_iec958_info()
404 	uinfo->count = 1;  in hdmi_codec_iec958_info()
414 	memcpy(ucontrol->value.iec958.status, hcp->iec_status,  in hdmi_codec_iec958_default_get()
415 	       sizeof(hcp->iec_status));  in hdmi_codec_iec958_default_get()
426 	memcpy(hcp->iec_status, ucontrol->value.iec958.status,  in hdmi_codec_iec958_default_put()
427 	       sizeof(hcp->iec_status));  in hdmi_codec_iec958_default_put()
435 	memset(ucontrol->value.iec958.status, 0xff,  in hdmi_codec_iec958_mask_get()
445 	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;  in hdmi_codec_startup()
446 	bool has_capture = !hcp->hcd.no_i2s_capture;  in hdmi_codec_startup()
447 	bool has_playback = !hcp->hcd.no_i2s_playback;  in hdmi_codec_startup()
453 	mutex_lock(&hcp->lock);  in hdmi_codec_startup()
454 	if (hcp->busy) {  in hdmi_codec_startup()
455 		dev_err(dai->dev, "Only one simultaneous stream supported!\n");  in hdmi_codec_startup()
456 		mutex_unlock(&hcp->lock);  in hdmi_codec_startup()
457 		return -EINVAL;  in hdmi_codec_startup()
460 	if (hcp->hcd.ops->audio_startup) {  in hdmi_codec_startup()
461 		ret = hcp->hcd.ops->audio_startup(dai->dev->parent, hcp->hcd.data);  in hdmi_codec_startup()
466 	if (tx && hcp->hcd.ops->get_eld) {  in hdmi_codec_startup()
467 		ret = hcp->hcd.ops->get_eld(dai->dev->parent, hcp->hcd.data,  in hdmi_codec_startup()
468 					    hcp->eld, sizeof(hcp->eld));  in hdmi_codec_startup()
472 		ret = snd_pcm_hw_constraint_eld(substream->runtime, hcp->eld);  in hdmi_codec_startup()
480 	hcp->busy = true;  in hdmi_codec_startup()
483 	mutex_unlock(&hcp->lock);  in hdmi_codec_startup()
491 	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;  in hdmi_codec_shutdown()
492 	bool has_capture = !hcp->hcd.no_i2s_capture;  in hdmi_codec_shutdown()
493 	bool has_playback = !hcp->hcd.no_i2s_playback;  in hdmi_codec_shutdown()
498 	hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;  in hdmi_codec_shutdown()
499 	hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data);  in hdmi_codec_shutdown()
501 	mutex_lock(&hcp->lock);  in hdmi_codec_shutdown()
502 	hcp->busy = false;  in hdmi_codec_shutdown()
503 	mutex_unlock(&hcp->lock);  in hdmi_codec_shutdown()
509 					unsigned int channels,  in hdmi_codec_fill_codec_params()  argument
515 	bool pcm_audio = !(hcp->iec_status[0] & IEC958_AES0_NONAUDIO);  in hdmi_codec_fill_codec_params()
518 		/* Select a channel allocation that matches with ELD and pcm channels */  in hdmi_codec_fill_codec_params()
519 		idx = hdmi_codec_get_ch_alloc_table_idx(hcp, channels);  in hdmi_codec_fill_codec_params()
522 			dev_err(dai->dev, "Not able to map channels to speakers (%d)\n",  in hdmi_codec_fill_codec_params()
524 			hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;  in hdmi_codec_fill_codec_params()
533 	hdmi_audio_infoframe_init(&hp->cea);  in hdmi_codec_fill_codec_params()
536 		hp->cea.channels = channels;  in hdmi_codec_fill_codec_params()
538 		hp->cea.channels = 0;  in hdmi_codec_fill_codec_params()
540 	hp->cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM;  in hdmi_codec_fill_codec_params()
541 	hp->cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM;  in hdmi_codec_fill_codec_params()
542 	hp->cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM;  in hdmi_codec_fill_codec_params()
543 	hp->cea.channel_allocation = ca_id;  in hdmi_codec_fill_codec_params()
545 	hp->sample_width = sample_width;  in hdmi_codec_fill_codec_params()
546 	hp->sample_rate = sample_rate;  in hdmi_codec_fill_codec_params()
547 	hp->channels = channels;  in hdmi_codec_fill_codec_params()
550 		hcp->chmap_idx = ca_id;  in hdmi_codec_fill_codec_params()
552 		hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;  in hdmi_codec_fill_codec_params()
573 	if (!hcp->hcd.ops->hw_params)  in hdmi_codec_hw_params()
576 	dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__,  in hdmi_codec_hw_params()
588 	memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status));  in hdmi_codec_hw_params()
592 		dev_err(dai->dev, "Creating IEC958 channel status failed %d\n",  in hdmi_codec_hw_params()
597 	cf->bit_fmt = params_format(params);  in hdmi_codec_hw_params()
598 	return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data,  in hdmi_codec_hw_params()
607 	struct snd_pcm_runtime *runtime = substream->runtime;  in hdmi_codec_prepare()
608 	unsigned int channels = runtime->channels;  in hdmi_codec_prepare()  local
609 	unsigned int width = snd_pcm_format_width(runtime->format);  in hdmi_codec_prepare()
610 	unsigned int rate = runtime->rate;  in hdmi_codec_prepare()
614 	if (!hcp->hcd.ops->prepare)  in hdmi_codec_prepare()
617 	dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__,  in hdmi_codec_prepare()
618 		width, rate, channels);  in hdmi_codec_prepare()
620 	ret = hdmi_codec_fill_codec_params(dai, width, rate, channels, &hp);  in hdmi_codec_prepare()
624 	memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status));  in hdmi_codec_prepare()
628 		dev_err(dai->dev, "Creating IEC958 channel status failed %d\n",  in hdmi_codec_prepare()
633 	cf->bit_fmt = runtime->format;  in hdmi_codec_prepare()
634 	return hcp->hcd.ops->prepare(dai->dev->parent, hcp->hcd.data,  in hdmi_codec_prepare()
648 		cf->bit_clk_provider = 1;  in hdmi_codec_i2s_set_fmt()
649 		cf->frame_clk_provider = 1;  in hdmi_codec_i2s_set_fmt()
652 		cf->frame_clk_provider = 1;  in hdmi_codec_i2s_set_fmt()
655 		cf->bit_clk_provider = 1;  in hdmi_codec_i2s_set_fmt()
660 		return -EINVAL;  in hdmi_codec_i2s_set_fmt()
667 		cf->frame_clk_inv = 1;  in hdmi_codec_i2s_set_fmt()
670 		cf->bit_clk_inv = 1;  in hdmi_codec_i2s_set_fmt()
673 		cf->frame_clk_inv = 1;  in hdmi_codec_i2s_set_fmt()
674 		cf->bit_clk_inv = 1;  in hdmi_codec_i2s_set_fmt()
680 		cf->fmt = HDMI_I2S;  in hdmi_codec_i2s_set_fmt()
683 		cf->fmt = HDMI_DSP_A;  in hdmi_codec_i2s_set_fmt()
686 		cf->fmt = HDMI_DSP_B;  in hdmi_codec_i2s_set_fmt()
689 		cf->fmt = HDMI_RIGHT_J;  in hdmi_codec_i2s_set_fmt()
692 		cf->fmt = HDMI_LEFT_J;  in hdmi_codec_i2s_set_fmt()
695 		cf->fmt = HDMI_AC97;  in hdmi_codec_i2s_set_fmt()
698 		dev_err(dai->dev, "Invalid DAI interface format\n");  in hdmi_codec_i2s_set_fmt()
699 		return -EINVAL;  in hdmi_codec_i2s_set_fmt()
715 	if (hcp->hcd.ops->mute_stream &&  in hdmi_codec_mute()
717 	     !hcp->hcd.no_capture_mute))  in hdmi_codec_mute()
718 		return hcp->hcd.ops->mute_stream(dai->dev->parent,  in hdmi_codec_mute()
719 						 hcp->hcd.data,  in hdmi_codec_mute()
722 	return -ENOTSUPP;  in hdmi_codec_mute()
730  *	${LINUX}/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
755  * instance allowing the 32-bit formats enables 24-precision with CPU
756  * DAIs that do not support 24-bit formats. If the extra formats cause
768 		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
774 		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
792 	struct snd_soc_dai_driver *drv = dai->driver;  in hdmi_codec_pcm_new()
797 	ret =  snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,  in hdmi_codec_pcm_new()
798 				      NULL, drv->playback.channels_max, 0,  in hdmi_codec_pcm_new()
799 				      &hcp->chmap_info);  in hdmi_codec_pcm_new()
804 	hcp->chmap_info->private_data = hcp;  in hdmi_codec_pcm_new()
805 	hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get;  in hdmi_codec_pcm_new()
808 	hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps;  in hdmi_codec_pcm_new()
809 	hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;  in hdmi_codec_pcm_new()
815 		kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component);  in hdmi_codec_pcm_new()
817 			return -ENOMEM;  in hdmi_codec_pcm_new()
819 		kctl->id.device = rtd->pcm->device;  in hdmi_codec_pcm_new()
820 		ret = snd_ctl_add(rtd->card->snd_card, kctl);  in hdmi_codec_pcm_new()
835 			.source = dai->driver->playback.stream_name,  in hdmi_dai_probe()
838 			.sink = dai->driver->capture.stream_name,  in hdmi_dai_probe()
844 	dapm = snd_soc_component_get_dapm(dai->component);  in hdmi_dai_probe()
856 	daifmt = devm_kzalloc(dai->dev, sizeof(*daifmt), GFP_KERNEL);  in hdmi_dai_probe()
858 		return -ENOMEM;  in hdmi_dai_probe()
868 	if (jack_status != hcp->jack_status) {  in hdmi_codec_jack_report()
869 		if (hcp->jack)  in hdmi_codec_jack_report()
870 			snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_LINEOUT);  in hdmi_codec_jack_report()
871 		hcp->jack_status = jack_status;  in hdmi_codec_jack_report()
880 		if (hcp->hcd.ops->get_eld) {  in plugged_cb()
881 			hcp->hcd.ops->get_eld(dev->parent, hcp->hcd.data,  in plugged_cb()
882 					    hcp->eld, sizeof(hcp->eld));  in plugged_cb()
887 		memset(hcp->eld, 0, sizeof(hcp->eld));  in plugged_cb()
897 	if (hcp->hcd.ops->hook_plugged_cb) {  in hdmi_codec_set_jack()
898 		hcp->jack = jack;  in hdmi_codec_set_jack()
904 		snd_soc_jack_report(jack, hcp->jack_status, SND_JACK_LINEOUT);  in hdmi_codec_set_jack()
909 	return -ENOTSUPP;  in hdmi_codec_set_jack()
922 	cf->fmt = HDMI_SPDIF;  in hdmi_dai_spdif_probe()
950 	.name = "i2s-hifi",
952 	.playback = {
953 		.stream_name = "I2S Playback",
972 	.name = "spdif-hifi",
974 	.playback = {
975 		.stream_name = "SPDIF Playback",
995 	int ret = -ENOTSUPP; /* see snd_soc_get_dai_id() */  in hdmi_of_xlate_dai_id()
997 	if (hcp->hcd.ops->get_dai_id)  in hdmi_of_xlate_dai_id()
998 		ret = hcp->hcd.ops->get_dai_id(component, endpoint, hcp->hcd.data);  in hdmi_of_xlate_dai_id()
1008 	if (hcp->hcd.ops->hook_plugged_cb) {  in hdmi_probe()
1009 		ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent,  in hdmi_probe()
1010 						    hcp->hcd.data,  in hdmi_probe()
1012 						    component->dev);  in hdmi_probe()
1022 	if (hcp->hcd.ops->hook_plugged_cb)  in hdmi_remove()
1023 		hcp->hcd.ops->hook_plugged_cb(component->dev->parent,  in hdmi_remove()
1024 					      hcp->hcd.data, NULL, NULL);  in hdmi_remove()
1041 	struct hdmi_codec_pdata *hcd = pdev->dev.platform_data;  in hdmi_codec_probe()
1043 	struct device *dev = &pdev->dev;  in hdmi_codec_probe()
1050 		return -EINVAL;  in hdmi_codec_probe()
1053 	dai_count = hcd->i2s + hcd->spdif;  in hdmi_codec_probe()
1054 	if (dai_count < 1 || !hcd->ops ||  in hdmi_codec_probe()
1055 	    (!hcd->ops->hw_params && !hcd->ops->prepare) ||  in hdmi_codec_probe()
1056 	    !hcd->ops->audio_shutdown) {  in hdmi_codec_probe()
1058 		return -EINVAL;  in hdmi_codec_probe()
1063 		return -ENOMEM;  in hdmi_codec_probe()
1065 	hcp->hcd = *hcd;  in hdmi_codec_probe()
1066 	mutex_init(&hcp->lock);  in hdmi_codec_probe()
1068 	ret = snd_pcm_create_iec958_consumer_default(hcp->iec_status,  in hdmi_codec_probe()
1069 						     sizeof(hcp->iec_status));  in hdmi_codec_probe()
1075 		return -ENOMEM;  in hdmi_codec_probe()
1077 	if (hcd->i2s) {  in hdmi_codec_probe()
1079 		daidrv[i].playback.channels_max = hcd->max_i2s_channels;  in hdmi_codec_probe()
1080 		if (hcd->no_i2s_playback)  in hdmi_codec_probe()
1081 			memset(&daidrv[i].playback, 0,  in hdmi_codec_probe()
1082 			       sizeof(daidrv[i].playback));  in hdmi_codec_probe()
1083 		if (hcd->no_i2s_capture)  in hdmi_codec_probe()
1089 	if (hcd->spdif) {  in hdmi_codec_probe()
1091 		if (hcd->no_spdif_playback)  in hdmi_codec_probe()
1092 			memset(&daidrv[i].playback, 0,  in hdmi_codec_probe()
1093 			       sizeof(daidrv[i].playback));  in hdmi_codec_probe()
1094 		if (hcd->no_spdif_capture)  in hdmi_codec_probe()