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Wed, 10 Sep 2025 01:11:48 -0700 (PDT) From: Alexey Klimov Date: Wed, 10 Sep 2025 09:11:42 +0100 Subject: [PATCH v2 2/2] ASoC: qcom: qdsp6/audioreach: add support for offloading raw opus playback Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250910-opus_codec_rfc_v1-v2-2-35fb6536df6b@linaro.org> References: <20250910-opus_codec_rfc_v1-v2-0-35fb6536df6b@linaro.org> In-Reply-To: <20250910-opus_codec_rfc_v1-v2-0-35fb6536df6b@linaro.org> To: Vinod Koul , Jaroslav Kysela , Takashi Iwai , Srinivas Kandagatla , Liam Girdwood , Mark Brown Cc: Patrick Lai , Annemarie Porter , srinivas.kandagatla@oss.qualcomm.com, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Krzysztof Kozlowski , kernel@oss.qualcomm.com, Ekansh Gupta , Alexey Klimov , Pierre-Louis Bossart X-Mailer: b4 0.14.2 Add support for OPUS module, OPUS format ID, media format payload struct and make it all recognizable by audioreach compress playback path. At this moment this only supports raw or plain OPUS packets not encapsulated in container (for instance OGG container). For this usecase each OPUS packet needs to be prepended with 4-bytes long length field which is expected to be done by userspace applications. This is Qualcomm DSP specific requirement. Cc: Annemarie Porter Cc: Vinod Koul Co-developed-by: Srinivas Kandagatla Signed-off-by: Srinivas Kandagatla Signed-off-by: Alexey Klimov --- sound/soc/qcom/qdsp6/audioreach.c | 27 +++++++++++++++++++++++++++ sound/soc/qcom/qdsp6/audioreach.h | 17 +++++++++++++++++ sound/soc/qcom/qdsp6/q6apm-dai.c | 3 ++- sound/soc/qcom/qdsp6/q6apm.c | 3 +++ 4 files changed, 49 insertions(+), 1 deletion(-) diff --git a/sound/soc/qcom/qdsp6/audioreach.c b/sound/soc/qcom/qdsp6/audio= reach.c index bbfd51db879766445fa0fea564659fabd06b59ad..aaec3d00068d71694000ad9c92c= 042c26c8da9b4 100644 --- a/sound/soc/qcom/qdsp6/audioreach.c +++ b/sound/soc/qcom/qdsp6/audioreach.c @@ -883,6 +883,7 @@ static int audioreach_set_compr_media_format(struct med= ia_format *media_fmt_hdr, struct payload_media_fmt_aac_t *aac_cfg; struct payload_media_fmt_pcm *mp3_cfg; struct payload_media_fmt_flac_t *flac_cfg; + struct payload_media_fmt_opus_t *opus_cfg; =20 switch (mcfg->fmt) { case SND_AUDIOCODEC_MP3: @@ -925,6 +926,32 @@ static int audioreach_set_compr_media_format(struct me= dia_format *media_fmt_hdr, flac_cfg->min_frame_size =3D mcfg->codec.options.flac_d.min_frame_size; flac_cfg->max_frame_size =3D mcfg->codec.options.flac_d.max_frame_size; break; + case SND_AUDIOCODEC_OPUS_RAW: + media_fmt_hdr->data_format =3D DATA_FORMAT_RAW_COMPRESSED; + media_fmt_hdr->fmt_id =3D MEDIA_FMT_ID_OPUS; + media_fmt_hdr->payload_size =3D sizeof(*opus_cfg); + p =3D p + sizeof(*media_fmt_hdr); + opus_cfg =3D p; + /* raw opus packets prepended with 4 bytes of length */ + opus_cfg->bitstream_format =3D 1; + /* + * payload_type: + * 0 -- read metadata from opus stream; + * 1 -- metadata is provided by filling in the struct here. + */ + opus_cfg->payload_type =3D 1; + opus_cfg->version =3D mcfg->codec.options.opus_d.version.version_byte; + opus_cfg->num_channels =3D mcfg->codec.options.opus_d.num_channels; + opus_cfg->pre_skip =3D mcfg->codec.options.opus_d.pre_skip; + opus_cfg->sample_rate =3D mcfg->codec.options.opus_d.sample_rate; + opus_cfg->output_gain =3D mcfg->codec.options.opus_d.output_gain; + opus_cfg->mapping_family =3D mcfg->codec.options.opus_d.mapping_family; + opus_cfg->stream_count =3D mcfg->codec.options.opus_d.chan_map.stream_co= unt; + opus_cfg->coupled_count =3D mcfg->codec.options.opus_d.chan_map.coupled_= count; + memcpy(opus_cfg->channel_mapping, mcfg->codec.options.opus_d.chan_map.ch= annel_map, + sizeof(opus_cfg->channel_mapping)); + opus_cfg->reserved[0] =3D opus_cfg->reserved[1] =3D opus_cfg->reserved[2= ] =3D 0; + break; default: return -EINVAL; } diff --git a/sound/soc/qcom/qdsp6/audioreach.h b/sound/soc/qcom/qdsp6/audio= reach.h index 790fba96e34db0fc9d5c90504747174f56b65b32..d1b60b36468a86301601b61a7f8= e7f6051561c3e 100644 --- a/sound/soc/qcom/qdsp6/audioreach.h +++ b/sound/soc/qcom/qdsp6/audioreach.h @@ -31,6 +31,7 @@ struct q6apm_graph; #define MODULE_ID_MP3_DECODE 0x0700103B #define MODULE_ID_GAPLESS 0x0700104D #define MODULE_ID_DISPLAY_PORT_SINK 0x07001069 +#define MODULE_ID_OPUS_DEC 0x07001174 =20 #define APM_CMD_GET_SPF_STATE 0x01001021 #define APM_CMD_RSP_GET_SPF_STATE 0x02001007 @@ -257,6 +258,22 @@ struct payload_media_fmt_aac_t { uint32_t sample_rate; } __packed; =20 +#define MEDIA_FMT_ID_OPUS 0x09001039 +struct payload_media_fmt_opus_t { + uint16_t bitstream_format; + uint16_t payload_type; + uint8_t version; + uint8_t num_channels; + uint16_t pre_skip; + uint32_t sample_rate; + uint16_t output_gain; + uint8_t mapping_family; + uint8_t stream_count; + uint8_t coupled_count; + uint8_t channel_mapping[8]; + uint8_t reserved[3]; +} __packed; + #define DATA_CMD_WR_SH_MEM_EP_EOS 0x04001002 #define WR_SH_MEM_EP_EOS_POLICY_LAST 1 #define WR_SH_MEM_EP_EOS_POLICY_EACH 2 diff --git a/sound/soc/qcom/qdsp6/q6apm-dai.c b/sound/soc/qcom/qdsp6/q6apm-= dai.c index 09da26f712a6ada97196090d760b91bc2dc2a732..4ecaff45c51860cddc631725953= ba7dfa84eeb50 100644 --- a/sound/soc/qcom/qdsp6/q6apm-dai.c +++ b/sound/soc/qcom/qdsp6/q6apm-dai.c @@ -551,10 +551,11 @@ static int q6apm_dai_compr_get_caps(struct snd_soc_co= mponent *component, caps->max_fragment_size =3D COMPR_PLAYBACK_MAX_FRAGMENT_SIZE; caps->min_fragments =3D COMPR_PLAYBACK_MIN_NUM_FRAGMENTS; caps->max_fragments =3D COMPR_PLAYBACK_MAX_NUM_FRAGMENTS; - caps->num_codecs =3D 3; + caps->num_codecs =3D 4; caps->codecs[0] =3D SND_AUDIOCODEC_MP3; caps->codecs[1] =3D SND_AUDIOCODEC_AAC; caps->codecs[2] =3D SND_AUDIOCODEC_FLAC; + caps->codecs[3] =3D SND_AUDIOCODEC_OPUS_RAW; =20 return 0; } diff --git a/sound/soc/qcom/qdsp6/q6apm.c b/sound/soc/qcom/qdsp6/q6apm.c index b4ffa0f0b188e2c32fdfb863b9130d1d11e578dd..0e667a7eb5467bdd65326099132= e8ba9dfefa21e 100644 --- a/sound/soc/qcom/qdsp6/q6apm.c +++ b/sound/soc/qcom/qdsp6/q6apm.c @@ -354,6 +354,9 @@ int q6apm_set_real_module_id(struct device *dev, struct= q6apm_graph *graph, case SND_AUDIOCODEC_FLAC: module_id =3D MODULE_ID_FLAC_DEC; break; + case SND_AUDIOCODEC_OPUS_RAW: + module_id =3D MODULE_ID_OPUS_DEC; + break; default: return -EINVAL; } --=20 2.47.2