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Commit 85a85595 authored by Honghao Liu's avatar Honghao Liu
Browse files

ASoC: msm8996: add support for automotive sound card 



Add support for automotive sound card in order to utilize the
automotive CODEC on APQ8096 based automotive platform. This
includes adding the required dai links and registering the sound
card, as well as adding support for the bring up and shutdown of
the MI2S interfaces that are used by the card.

Change-Id: I38f408995052f47cc8f5655e051e5f8d67cc7780
Signed-off-by: default avatarHonghao Liu <honghaol@codeaurora.org>
parent 9d67b660

Documentation/devicetree/bindings/sound/qcom-audio-dev.txt

+3 −1
Original line number Diff line number Diff line
@@ -1085,7 +1085,9 @@ Example: 
Required properties:

- compatible : "qcom,msm8996-asoc-snd-tomtom" for tomtom codec and

		node is "sound" and "qcom,msm8996-asoc-snd-tasha"

		for tasha codec and node is "sound-9335"

		for tasha codec and node is "sound-9335" and

		"qcom,msm8996-asoc-snd-auto" for auto codec and

		node is "sound-auto"

- qcom,model : The user-visible name of this sound card.

- qcom,tomtom-mclk-clk-freq : MCLK frequency value for tomtom codec

			      and node is "sound"

sound/soc/msm/msm8996.c

+265 −6
Original line number Diff line number Diff line
@@ -126,6 +126,15 @@ static struct afe_clk_set mi2s_tx_clk = { 
	0,

};



static struct afe_clk_set mi2s_rx_clk = {

	AFE_API_VERSION_I2S_CONFIG,

	Q6AFE_LPASS_CLK_ID_QUAD_MI2S_IBIT,

	Q6AFE_LPASS_IBIT_CLK_1_P536_MHZ,

	Q6AFE_LPASS_CLK_ATTRIBUTE_COUPLE_NO,

	Q6AFE_LPASS_CLK_ROOT_DEFAULT,

	0,

};



struct msm8996_wsa881x_dev_info {

	struct device_node *of_node;

	u32 index;
@@ -164,6 +173,8 @@ static void *def_tasha_mbhc_cal(void); 
static int msm_snd_enable_codec_ext_clk(struct snd_soc_codec *codec,

					int enable, bool dapm);

static int msm8996_wsa881x_init(struct snd_soc_component *component);

static bool msm8996_check_auto_snd_card(struct platform_device *pdev);

static int msm8996_init_auto_snd_card(struct platform_device *pdev);



/*

 * Need to report LINEIN
@@ -1222,6 +1233,112 @@ static struct snd_soc_ops msm8996_mi2s_be_ops = { 
	.shutdown = msm8996_mi2s_snd_shutdown,

};



static int msm8996_mi2s_snd_auto_startup(struct snd_pcm_substream *substream)

{

	int ret = 0;

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;



	pr_debug("%s: substream = %s  stream = %d\n", __func__,

		 substream->name, substream->stream);



	switch (cpu_dai->id) {

	case 0:	/*MSM_PRIM_MI2S*/

		break;

	case 1:	/*MSM_SEC_MI2S*/

		break;

	case 2:	/*MSM_TERT_MI2S*/

		mi2s_tx_clk.enable = 1;

		ret = afe_set_lpass_clock_v2(AFE_PORT_ID_TERTIARY_MI2S_TX,

					&mi2s_tx_clk);

		if (ret < 0) {

			pr_err("%s: afe lpass clock failed, err:%d\n",

				__func__, ret);

			goto err;

		}

		ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBM_CFM);

		if (ret < 0)

			pr_err("%s: set fmt cpu dai failed, err:%d\n",

				__func__, ret);

		break;

	case 3:	/*MSM_QUAT_MI2S*/

		mi2s_rx_clk.enable = 1;

		ret = afe_set_lpass_clock_v2(AFE_PORT_ID_QUATERNARY_MI2S_RX,

					&mi2s_rx_clk);

		if (ret < 0) {

			pr_err("%s: afe lpass clock failed, err:%d\n",

				__func__, ret);

			goto err;

		}

		ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBS_CFS);

		if (ret < 0)

			pr_err("%s: set fmt cpu dai failed, err:%d\n",

				__func__, ret);

		break;

	default:

		pr_err("%s: invalid cpu_dai id 0x%x\n", __func__, cpu_dai->id);

		break;

	}



err:

	return ret;

}



static void msm8996_mi2s_snd_auto_shutdown(struct snd_pcm_substream *substream)

{

	int ret = 0;

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;



	pr_debug("%s: substream = %s  stream = %d\n", __func__,

		substream->name, substream->stream);



	switch (cpu_dai->id) {

	case 0:	/*MSM_PRIM_MI2S*/

		break;

	case 1:	/*MSM_SEC_MI2S*/

		break;

	case 2:	/*MSM_TERT_MI2S*/

		mi2s_tx_clk.enable = 0;

		ret = afe_set_lpass_clock_v2(AFE_PORT_ID_TERTIARY_MI2S_TX,

					&mi2s_tx_clk);

		if (ret < 0)

			pr_err("%s: afe lpass clock failed, err:%d\n",

				__func__, ret);

		break;

	case 3:	/*MSM_QUAT_MI2S*/

		mi2s_rx_clk.enable = 0;

		ret = afe_set_lpass_clock_v2(AFE_PORT_ID_QUATERNARY_MI2S_RX,

					&mi2s_rx_clk);

		if (ret < 0)

			pr_err("%s: afe lpass clock failed, err:%d\n",

				__func__, ret);

		break;

	default:

		pr_err("%s: invalid cpu_dai id 0x%x\n", __func__, cpu_dai->id);

		break;

	}

}



static struct snd_soc_ops msm8996_mi2s_auto_be_ops = {

	.startup = msm8996_mi2s_snd_auto_startup,

	.shutdown = msm8996_mi2s_snd_auto_shutdown,

};



static int msm_mi2s_rx_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,

				     struct snd_pcm_hw_params *params)

{

	struct snd_interval *rate = hw_param_interval(params,

					SNDRV_PCM_HW_PARAM_RATE);

	struct snd_interval *channels = hw_param_interval(params,

					SNDRV_PCM_HW_PARAM_CHANNELS);



	pr_debug("%s: channel:%d\n", __func__, msm_tert_mi2s_tx_ch);

	rate->min = rate->max = SAMPLING_RATE_48KHZ;

	channels->min = channels->max = msm_tert_mi2s_tx_ch;

	return 0;

}



static int msm_slim_5_rx_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,

					    struct snd_pcm_hw_params *params)

{
@@ -2894,7 +3011,11 @@ static struct snd_soc_dai_link msm8996_common_be_dai_links[] = { 
		.be_id = MSM_BACKEND_DAI_VOICE2_PLAYBACK_TX,

		.be_hw_params_fixup = msm_be_hw_params_fixup,

		.ignore_suspend = 1,

	},

	}

};



static struct snd_soc_dai_link msm8996_tasha_be_dai_links[] = {

	/* Backend DAI Links */

	{

		.name = LPASS_BE_TERT_MI2S_TX,

		.stream_name = "Tertiary MI2S Capture",
@@ -2908,11 +3029,7 @@ static struct snd_soc_dai_link msm8996_common_be_dai_links[] = { 
		.be_hw_params_fixup = msm_tx_be_hw_params_fixup,

		.ops = &msm8996_mi2s_be_ops,

		.ignore_suspend = 1,

	}

};



static struct snd_soc_dai_link msm8996_tasha_be_dai_links[] = {

	/* Backend DAI Links */

	},

	{

		.name = LPASS_BE_SLIMBUS_0_RX,

		.stream_name = "Slimbus Playback",
@@ -3053,6 +3170,38 @@ static struct snd_soc_dai_link msm8996_tasha_be_dai_links[] = { 
	},

};



static struct snd_soc_dai_link msm8996_auto_be_dai_links[] = {

	/* Backend DAI Links */

	{

		.name = LPASS_BE_TERT_MI2S_TX,

		.stream_name = "Tertiary MI2S Capture",

		.cpu_dai_name = "msm-dai-q6-mi2s.2",

		.platform_name = "msm-pcm-routing",

		.codec_name = "msm-stub-codec.1",

		.codec_dai_name = "msm-stub-tx",

		.no_pcm = 1,

		.dpcm_capture = 1,

		.be_id = MSM_BACKEND_DAI_TERTIARY_MI2S_TX,

		.be_hw_params_fixup = msm_tx_be_hw_params_fixup,

		.ops = &msm8996_mi2s_auto_be_ops,

		.ignore_suspend = 1,

	},

	{

		.name = LPASS_BE_QUAT_MI2S_RX,

		.stream_name = "Quaternary MI2S Playback",

		.cpu_dai_name = "msm-dai-q6-mi2s.3",

		.platform_name = "msm-pcm-routing",

		.codec_name = "msm-stub-codec.1",

		.codec_dai_name = "msm-stub-rx",

		.no_pcm = 1,

		.dpcm_playback = 1,

		.be_id = MSM_BACKEND_DAI_QUATERNARY_MI2S_RX,

		.be_hw_params_fixup = msm_mi2s_rx_be_hw_params_fixup,

		.ops = &msm8996_mi2s_auto_be_ops,

		.ignore_suspend = 1,

	},

};



static struct snd_soc_dai_link msm8996_hdmi_dai_link[] = {

	/* HDMI BACK END DAI Link */

	{
@@ -3078,6 +3227,12 @@ static struct snd_soc_dai_link msm8996_tasha_dai_links[ 
			 ARRAY_SIZE(msm8996_tasha_be_dai_links) +

			 ARRAY_SIZE(msm8996_hdmi_dai_link)];



static struct snd_soc_dai_link msm8996_auto_dai_links[

			 ARRAY_SIZE(msm8996_common_dai_links) +

			 ARRAY_SIZE(msm8996_common_be_dai_links) +

			 ARRAY_SIZE(msm8996_auto_be_dai_links) +

			 ARRAY_SIZE(msm8996_hdmi_dai_link)];



static int msm8996_wsa881x_init(struct snd_soc_component *component)

{

	u8 spkleft_ports[WSA881X_MAX_SWR_PORTS] = {100, 101, 102, 106};
@@ -3132,6 +3287,10 @@ struct snd_soc_card snd_soc_card_tasha_msm8996 = { 
	.name		= "msm8996-tasha-snd-card",

};



struct snd_soc_card snd_soc_card_auto_msm8996 = {

	.name		= "msm8996-auto-snd-card",

};



static int msm8996_populate_dai_link_component_of_node(

					struct snd_soc_card *card)

{
@@ -3272,6 +3431,8 @@ static int msm8996_prepare_hifi(struct snd_soc_card *card) 
static const struct of_device_id msm8996_asoc_machine_of_match[]  = {

	{ .compatible = "qcom,msm8996-asoc-snd-tasha",

	  .data = "tasha_codec"},

	{ .compatible = "qcom,msm8996-asoc-snd-auto",

	  .data = "auto_codec"},

	{},

};
@@ -3310,6 +3471,23 @@ static struct snd_soc_card *populate_snd_card_dailinks(struct device *dev) 


		dailink = msm8996_tasha_dai_links;

		len_4 = len_3 + ARRAY_SIZE(msm8996_tasha_be_dai_links);

	} else if (!strcmp(match->data, "auto_codec")) {

		card = &snd_soc_card_auto_msm8996;

		len_1 = ARRAY_SIZE(msm8996_common_dai_links);

		len_2 = len_1 + ARRAY_SIZE(msm8996_common_be_dai_links);



		memcpy(msm8996_auto_dai_links,

		       msm8996_common_dai_links,

		       sizeof(msm8996_common_dai_links));

		memcpy(msm8996_auto_dai_links + len_1,

		       msm8996_common_be_dai_links,

		       sizeof(msm8996_common_be_dai_links));

		memcpy(msm8996_auto_dai_links + len_2,

		       msm8996_auto_be_dai_links,

		       sizeof(msm8996_auto_be_dai_links));



		dailink = msm8996_auto_dai_links;

		len_4 = len_2 + ARRAY_SIZE(msm8996_auto_be_dai_links);

	}



	if (of_property_read_bool(dev->of_node, "qcom,hdmi-audio-rx")) {
@@ -3492,6 +3670,84 @@ static int msm8996_init_wsa_dev(struct platform_device *pdev, 
	return 0;

}



static bool msm8996_check_auto_snd_card(struct platform_device *pdev)

{

	const struct of_device_id *match;

	bool ret = false;



	match = of_match_node(msm8996_asoc_machine_of_match,

			pdev->dev.of_node);

	if (!match) {

		dev_err(&pdev->dev, "%s: no matched codec is found.\n",

			__func__);

		goto end;

	}



	if (!strcmp(match->data, "auto_codec"))

		ret = true;

end:

	return ret;

}



static int msm8996_init_auto_snd_card(struct platform_device *pdev)

{

	struct snd_soc_card *card = NULL;

	struct msm8996_asoc_mach_data *pdata = NULL;

	int ret = 0;



	pdata = devm_kzalloc(&pdev->dev,

			sizeof(struct msm8996_asoc_mach_data), GFP_KERNEL);

	if (!pdata) {

		ret = -ENOMEM;

		dev_err(&pdev->dev, "Can't allocate msm8996_asoc_mach_data\n");

		return ret;

	}



	card = populate_snd_card_dailinks(&pdev->dev);

	if (!card) {

		dev_err(&pdev->dev, "%s: Card uninitialized\n", __func__);

		ret = -EINVAL;

		goto err;

	}

	card->dev = &pdev->dev;

	platform_set_drvdata(pdev, card);

	snd_soc_card_set_drvdata(card, pdata);



	ret = snd_soc_of_parse_card_name(card, "qcom,model");

	if (ret) {

		dev_err(&pdev->dev, "parse card name failed, err:%d\n",

			ret);

		goto err;

	}



	spdev = pdev;



	/* populate controls of snd card */

	card->controls = msm_snd_controls;

	card->num_controls = ARRAY_SIZE(msm_snd_controls);



	ret = msm8996_populate_dai_link_component_of_node(card);

	if (ret) {

		ret = -EPROBE_DEFER;

		goto err;

	}



	ret = snd_soc_register_card(card);

	if (ret == -EPROBE_DEFER) {

		goto err;

	} else if (ret) {

		dev_err(&pdev->dev, "snd_soc_register_card failed, err:%d\n",

			ret);

		goto err;

	}

	dev_info(&pdev->dev, "Sound card %s registered\n", card->name);



	return 0;

err:

	devm_kfree(&pdev->dev, pdata);

	return ret;

}



static int msm8996_asoc_machine_probe(struct platform_device *pdev)

{

	struct snd_soc_card *card;
@@ -3506,6 +3762,9 @@ static int msm8996_asoc_machine_probe(struct platform_device *pdev) 
		return -EINVAL;

	}



	if (msm8996_check_auto_snd_card(pdev))

		return msm8996_init_auto_snd_card(pdev);



	pdata = devm_kzalloc(&pdev->dev,

			sizeof(struct msm8996_asoc_mach_data), GFP_KERNEL);

	if (!pdata) {