Unverified Commit f7c41911 authored by Seppo Ingalsuo's avatar Seppo Ingalsuo Committed by Mark Brown
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ASoC: SOF: ipc4-topology: Add support for float sample type 



This patch adds support for FLOAT_LE ALSA type for playback and
capture for IPC4 systems. Functions sof_ipc4_update_hw_params(),
sof_ipc4_get_valid_bits() and sof_ipc4_get_sample_type()
are updated to handle SOF_IPC4_TYPE_FLOAT and
SNDRV_PCM_FORMAT_FLOAT_LE.

Signed-off-by: default avatarSeppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Reviewed-by: default avatarPéter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: default avatarLiam Girdwood <liam.r.girdwood@intel.com>
Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@linux.intel.com>
Message-ID: <20250829105305.31818-4-peter.ujfalusi@linux.intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c04c2e82

sound/soc/sof/ipc4-topology.c

+15 −1
Original line number Diff line number Diff line
@@ -1345,8 +1345,18 @@ static int sof_ipc4_update_hw_params(struct snd_sof_dev *sdev, struct snd_pcm_hw 
			snd_fmt = SNDRV_PCM_FORMAT_S24_LE;

			break;

		case 32:

			switch (type) {

			case SOF_IPC4_TYPE_LSB_INTEGER:

				snd_fmt = SNDRV_PCM_FORMAT_S32_LE;

				break;

			case SOF_IPC4_TYPE_FLOAT:

				snd_fmt = SNDRV_PCM_FORMAT_FLOAT_LE;

				break;

			default:

				dev_err(sdev->dev, "Unsupported PCM 32-bit IPC4 type %d\n", type);

				return -EINVAL;

			}

			break;

		default:

			dev_err(sdev->dev, "invalid PCM valid_bits %d\n", valid_bits);

			return -EINVAL;
@@ -1473,6 +1483,8 @@ static int sof_ipc4_get_valid_bits(struct snd_sof_dev *sdev, struct snd_pcm_hw_p 
		return 24;

	case SNDRV_PCM_FORMAT_S32_LE:

		return 32;

	case SNDRV_PCM_FORMAT_FLOAT_LE:

		return 32;

	default:

		dev_err(sdev->dev, "invalid pcm frame format %d\n", params_format(params));

		return -EINVAL;
@@ -1493,6 +1505,8 @@ static int sof_ipc4_get_sample_type(struct snd_sof_dev *sdev, struct snd_pcm_hw_ 
	case SNDRV_PCM_FORMAT_S32_LE:

	case SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE:

		return SOF_IPC4_TYPE_LSB_INTEGER;

	case SNDRV_PCM_FORMAT_FLOAT_LE:

		return SOF_IPC4_TYPE_FLOAT;

	default:

		dev_err(sdev->dev, "invalid pcm sample type %d\n", params_format(params));

		return -EINVAL;