Unverified Commit a6881210 authored by Brent Lu's avatar Brent Lu Committed by Mark Brown
Browse files

ASoC: Intel: board_helpers: support DAI link array generation 



Add a helper function for machine drivers to initialize dai_link and
num_links of a snd_soc_card structure. Machine driver needs to
initialize sof_card_private structure in driver probe function then
board_helpers module will create entire DAI link array for this board.

Signed-off-by: default avatarBrent Lu <brent.lu@intel.com>
Reviewed-by: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20231127152654.28204-26-peter.ujfalusi@linux.intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent ee2486d5

sound/soc/intel/boards/sof_board_helpers.c

+152 −0
Original line number Diff line number Diff line
@@ -375,6 +375,158 @@ int sof_intel_board_set_hdmi_in_link(struct device *dev, 
}

EXPORT_SYMBOL_NS(sof_intel_board_set_hdmi_in_link, SND_SOC_INTEL_SOF_BOARD_HELPERS);



static int calculate_num_links(struct sof_card_private *ctx)

{

	int num_links = 0;



	/* headphone codec */

	if (ctx->codec_type != CODEC_NONE)

		num_links++;



	/* dmic01 and dmic16k */

	if (ctx->dmic_be_num > 0)

		num_links++;



	if (ctx->dmic_be_num > 1)

		num_links++;



	/* idisp HDMI */

	num_links += ctx->hdmi_num;



	/* speaker amp */

	if (ctx->amp_type != CODEC_NONE)

		num_links++;



	/* BT audio offload */

	if (ctx->bt_offload_present)

		num_links++;



	/* HDMI-In */

	num_links += hweight32(ctx->ssp_mask_hdmi_in);



	return num_links;

}



int sof_intel_board_set_dai_link(struct device *dev, struct snd_soc_card *card,

				 struct sof_card_private *ctx)

{

	struct snd_soc_dai_link *links;

	int num_links;

	int i;

	int idx = 0;

	int ret;

	int ssp_hdmi_in = 0;



	num_links = calculate_num_links(ctx);



	links = devm_kcalloc(dev, num_links, sizeof(struct snd_soc_dai_link),

			     GFP_KERNEL);

	if (!links)

		return -ENOMEM;



	/* headphone codec */

	if (ctx->codec_type != CODEC_NONE) {

		ret = sof_intel_board_set_codec_link(dev, &links[idx], idx,

						     ctx->codec_type,

						     ctx->ssp_codec);

		if (ret) {

			dev_err(dev, "fail to set codec link, ret %d\n", ret);

			return ret;

		}



		ctx->codec_link = &links[idx];

		idx++;

	}



	/* dmic01 and dmic16k */

	if (ctx->dmic_be_num > 0) {

		/* at least we have dmic01 */

		ret = sof_intel_board_set_dmic_link(dev, &links[idx], idx,

						    SOF_DMIC_01);

		if (ret) {

			dev_err(dev, "fail to set dmic01 link, ret %d\n", ret);

			return ret;

		}



		idx++;

	}



	if (ctx->dmic_be_num > 1) {

		/* set up 2 BE links at most */

		ret = sof_intel_board_set_dmic_link(dev, &links[idx], idx,

						    SOF_DMIC_16K);

		if (ret) {

			dev_err(dev, "fail to set dmic16k link, ret %d\n", ret);

			return ret;

		}



		idx++;

	}



	/* idisp HDMI */

	for (i = 1; i <= ctx->hdmi_num; i++) {

		ret = sof_intel_board_set_intel_hdmi_link(dev, &links[idx], idx,

							  i,

							  ctx->hdmi.idisp_codec);

		if (ret) {

			dev_err(dev, "fail to set hdmi link, ret %d\n", ret);

			return ret;

		}



		idx++;

	}



	/* speaker amp */

	if (ctx->amp_type != CODEC_NONE) {

		ret = sof_intel_board_set_ssp_amp_link(dev, &links[idx], idx,

						       ctx->amp_type,

						       ctx->ssp_amp);

		if (ret) {

			dev_err(dev, "fail to set amp link, ret %d\n", ret);

			return ret;

		}



		ctx->amp_link = &links[idx];

		idx++;

	}



	/* BT audio offload */

	if (ctx->bt_offload_present) {

		ret = sof_intel_board_set_bt_link(dev, &links[idx], idx,

						  ctx->ssp_bt);

		if (ret) {

			dev_err(dev, "fail to set bt link, ret %d\n", ret);

			return ret;

		}



		idx++;

	}



	/* HDMI-In */

	for_each_set_bit(ssp_hdmi_in, &ctx->ssp_mask_hdmi_in, 32) {

		ret = sof_intel_board_set_hdmi_in_link(dev, &links[idx], idx,

						       ssp_hdmi_in);

		if (ret) {

			dev_err(dev, "fail to set hdmi-in link, ret %d\n", ret);

			return ret;

		}



		idx++;

	}



	if (idx != num_links) {

		dev_err(dev, "link number mismatch, idx %d, num_links %d\n", idx,

			num_links);

		return -EINVAL;

	}



	card->dai_link = links;

	card->num_links = num_links;



	return 0;

}

EXPORT_SYMBOL_NS(sof_intel_board_set_dai_link, SND_SOC_INTEL_SOF_BOARD_HELPERS);



MODULE_DESCRIPTION("ASoC Intel SOF Machine Driver Board Helpers");

MODULE_AUTHOR("Brent Lu <brent.lu@intel.com>");

MODULE_LICENSE("GPL");

sound/soc/intel/boards/sof_board_helpers.h

+7 −0
Original line number Diff line number Diff line
@@ -35,6 +35,8 @@ struct sof_rt5682_private { 
 * @ssp_bt: ssp port number of BT offload BE link

 * @ssp_mask_hdmi_in: ssp port mask of HDMI-IN BE link

 * @bt_offload_present: true to create BT offload BE link

 * @codec_link: pointer to headset codec dai link

 * @amp_link: pointer to speaker amplifier dai link

 * @rt5682: private data for rt5682 machine driver

 */

struct sof_card_private {
@@ -54,6 +56,9 @@ struct sof_card_private { 


	bool bt_offload_present;



	struct snd_soc_dai_link *codec_link;

	struct snd_soc_dai_link *amp_link;



	union {

		struct sof_rt5682_private rt5682;

	};
@@ -65,6 +70,8 @@ enum sof_dmic_be_type { 
};



int sof_intel_board_card_late_probe(struct snd_soc_card *card);

int sof_intel_board_set_dai_link(struct device *dev, struct snd_soc_card *card,

				 struct sof_card_private *ctx);



int sof_intel_board_set_codec_link(struct device *dev,

				   struct snd_soc_dai_link *link, int be_id,