Commit c13202f7 authored by Charles Keepax's avatar Charles Keepax Committed by Mark Brown
Browse files

ASoC: cs47l24: Add support for audio trace firmware 



cs47l24 supports the audio trace firmware, this streams of audio to be
captured from the CODEC over a compressed audio channel for
analysis/debugging of audio processing firmwares.

Signed-off-by: default avatarCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 9abe3dc7

sound/soc/codecs/cs47l24.c

+35 −3
Original line number Diff line number Diff line
@@ -807,6 +807,9 @@ static const struct snd_soc_dapm_route cs47l24_dapm_routes[] = { 
	{ "IN2L PGA", NULL, "IN2L" },

	{ "IN2R PGA", NULL, "IN2R" },



	{ "Audio Trace DSP", NULL, "DSP2" },

	{ "Audio Trace DSP", NULL, "SYSCLK" },



	ARIZONA_MIXER_ROUTES("OUT1L", "HPOUT1L"),

	ARIZONA_MIXER_ROUTES("OUT1R", "HPOUT1R"),
@@ -1016,6 +1019,27 @@ static struct snd_soc_dai_driver cs47l24_dai[] = { 
			.formats = CS47L24_FORMATS,

		},

	},

	{

		.name = "cs47l24-cpu-trace",

		.capture = {

			.stream_name = "Audio Trace CPU",

			.channels_min = 1,

			.channels_max = 6,

			.rates = CS47L24_RATES,

			.formats = CS47L24_FORMATS,

		},

		.compress_new = snd_soc_new_compress,

	},

	{

		.name = "cs47l24-dsp-trace",

		.capture = {

			.stream_name = "Audio Trace DSP",

			.channels_min = 1,

			.channels_max = 6,

			.rates = CS47L24_RATES,

			.formats = CS47L24_FORMATS,

		},

	},

};



static int cs47l24_open(struct snd_compr_stream *stream)
@@ -1027,6 +1051,8 @@ static int cs47l24_open(struct snd_compr_stream *stream) 


	if (strcmp(rtd->codec_dai->name, "cs47l24-dsp-voicectrl") == 0) {

		n_adsp = 2;

	} else if (strcmp(rtd->codec_dai->name, "cs47l24-dsp-trace") == 0) {

		n_adsp = 1;

	} else {

		dev_err(arizona->dev,

			"No suitable compressed stream for DAI '%s'\n",
@@ -1041,10 +1067,16 @@ static irqreturn_t cs47l24_adsp2_irq(int irq, void *data) 
{

	struct cs47l24_priv *priv = data;

	struct arizona *arizona = priv->core.arizona;

	int ret;

	int serviced = 0;

	int i, ret;



	for (i = 1; i <= 2; ++i) {

		ret = wm_adsp_compr_handle_irq(&priv->core.adsp[i]);

		if (ret != -ENODEV)

			serviced++;

	}



	ret = wm_adsp_compr_handle_irq(&priv->core.adsp[2]);

	if (ret == -ENODEV) {

	if (!serviced) {

		dev_err(arizona->dev, "Spurious compressed data IRQ\n");

		return IRQ_NONE;

	}