linux-kernel - [PATCH 09/14] ASoC: q6dsp: q6apm-dai: Add compress DAI and codec caps get callbacks

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Date:   Wed, 1 Feb 2023 19:19:42 +0530
From:   Mohammad Rafi Shaik <quic_mohs@...cinc.com>
To:     <krzysztof.kozlowski+dt@...aro.org>, <agross@...nel.org>,
        <andersson@...nel.org>, <lgirdwood@...il.com>,
        <broonie@...nel.org>, <robh+dt@...nel.org>,
        <quic_plai@...cinc.com>, <bgoswami@...cinc.com>,
        <srinivas.kandagatla@...aro.org>, <quic_rohkumar@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <alsa-devel@...a-project.org>,
        <linux-kernel@...r.kernel.org>, <swboyd@...omium.org>,
        <judyhsiao@...omium.org>, <devicetree@...r.kernel.org>,
        <konrad.dybcio@...aro.org>
CC:     Mohammad Rafi Shaik <quic_mohs@...cinc.com>
Subject: [PATCH 09/14] ASoC: q6dsp: q6apm-dai: Add compress DAI and codec caps get callbacks

Add q6apm get compress DAI capabilities and codec capabilities callbacks
to support compress offload playback.

Signed-off-by: Mohammad Rafi Shaik <quic_mohs@...cinc.com>
Co-developed-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 sound/soc/qcom/qdsp6/q6apm-dai.c | 51 ++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/sound/soc/qcom/qdsp6/q6apm-dai.c b/sound/soc/qcom/qdsp6/q6apm-dai.c
index fd134c268189..54e1aca61e4c 100644
--- a/sound/soc/qcom/qdsp6/q6apm-dai.c
+++ b/sound/soc/qcom/qdsp6/q6apm-dai.c
@@ -29,8 +29,25 @@
 #define BUFFER_BYTES_MIN (PLAYBACK_MIN_NUM_PERIODS * PLAYBACK_MIN_PERIOD_SIZE)
 #define COMPR_PLAYBACK_MAX_FRAGMENT_SIZE (128 * 1024)
 #define COMPR_PLAYBACK_MAX_NUM_FRAGMENTS (16 * 4)
+#define COMPR_PLAYBACK_MIN_FRAGMENT_SIZE (8 * 1024)
+#define COMPR_PLAYBACK_MIN_NUM_FRAGMENTS (4)
 #define SID_MASK_DEFAULT	0xF
 
+static const struct snd_compr_codec_caps q6apm_compr_caps = {
+	.num_descriptors = 1,
+	.descriptor[0].max_ch = 2,
+	.descriptor[0].sample_rates = {	8000, 11025, 12000, 16000, 22050,
+					24000, 32000, 44100, 48000, 88200,
+					96000, 176400, 192000 },
+	.descriptor[0].num_sample_rates = 13,
+	.descriptor[0].bit_rate[0] = 320,
+	.descriptor[0].bit_rate[1] = 128,
+	.descriptor[0].num_bitrates = 2,
+	.descriptor[0].profiles = 0,
+	.descriptor[0].modes = SND_AUDIOCHANMODE_MP3_STEREO,
+	.descriptor[0].formats = 0,
+};
+
 enum stream_state {
 	Q6APM_STREAM_IDLE = 0,
 	Q6APM_STREAM_STOPPED,
@@ -507,9 +524,43 @@ static int q6apm_dai_compr_free(struct snd_soc_component *component,
 
 	return 0;
 }
+
+static int q6apm_dai_compr_get_caps(struct snd_soc_component *component,
+				    struct snd_compr_stream *stream,
+				    struct snd_compr_caps *caps)
+{
+	caps->direction = SND_COMPRESS_PLAYBACK;
+	caps->min_fragment_size = COMPR_PLAYBACK_MIN_FRAGMENT_SIZE;
+	caps->max_fragment_size = COMPR_PLAYBACK_MAX_FRAGMENT_SIZE;
+	caps->min_fragments = COMPR_PLAYBACK_MIN_NUM_FRAGMENTS;
+	caps->max_fragments = COMPR_PLAYBACK_MAX_NUM_FRAGMENTS;
+	caps->num_codecs = 3;
+	caps->codecs[0] = SND_AUDIOCODEC_MP3;
+	caps->codecs[1] = SND_AUDIOCODEC_AAC;
+	caps->codecs[2] = SND_AUDIOCODEC_FLAC;
+
+	return 0;
+}
+
+static int q6apm_dai_compr_get_codec_caps(struct snd_soc_component *component,
+					  struct snd_compr_stream *stream,
+					  struct snd_compr_codec_caps *codec)
+{
+	switch (codec->codec) {
+	case SND_AUDIOCODEC_MP3:
+		*codec = q6apm_compr_caps;
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
 static const struct snd_compress_ops q6apm_dai_compress_ops = {
 	.open		= q6apm_dai_compr_open,
 	.free		= q6apm_dai_compr_free,
+	.get_caps	= q6apm_dai_compr_get_caps,
+	.get_codec_caps	= q6apm_dai_compr_get_codec_caps,
 };
 
 static const struct snd_soc_component_driver q6apm_fe_dai_component = {
-- 
2.25.1