From patchwork Fri Sep 6 09:43:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 13793859 Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 687981C9DFC; Fri, 6 Sep 2024 10:05:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=92.121.34.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725617145; cv=none; b=JbhEEQec+BgCcfT7c3NU06/bCVlsPSDwrLa2NxYOTDYv1ZW2vOqAQE07pr2aUIdqrQQ0YkofBpXdsLj/pqGAXCGYFNtypYyNS+jIMHg+YusSWxu+wGg3fEunLlIsSj5nyms856nvq+uJJMpMkpvJuP24qRg62s9KZnQskrSVgi0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725617145; c=relaxed/simple; bh=jUu/gw9EyeaLrWHEIcS7oVbSQyZEBWsLMRaM9p5I8zY=; h=From:To:Subject:Date:Message-Id:In-Reply-To:References; b=hsaKeGVz4VL1xS7wTYXIJ9e+5hR5rgBbnstB4iWJwhm2CVjyffFrFGffXYyZbKAkkuIdJTEx/JWuU5BZPkNXP2GGXbkyVWNRaeP8szZ3lylA+g5/+9t7IqYdOBy009y7+ZkcYF4T0PMgdFT0+am0HlC+ThQ77s5Lw0aY4Bi2wVY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com; spf=pass smtp.mailfrom=nxp.com; arc=none smtp.client-ip=92.121.34.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nxp.com Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 43FE5201072; Fri, 6 Sep 2024 12:05:36 +0200 (CEST) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 082B6201073; Fri, 6 Sep 2024 12:05:36 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id E1475180031E; Fri, 6 Sep 2024 18:05:30 +0800 (+08) From: Shengjiu Wang To: vkoul@kernel.org, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, shengjiu.wang@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com, nicoleotsuka@gmail.com, lgirdwood@gmail.com, broonie@kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [RFC PATCH v3 1/6] ALSA: compress: Add output rate and output format support Date: Fri, 6 Sep 2024 17:43:52 +0800 Message-Id: <1725615837-24872-2-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1725615837-24872-1-git-send-email-shengjiu.wang@nxp.com> References: <1725615837-24872-1-git-send-email-shengjiu.wang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: X-Patchwork-State: RFC Add 'pcm_format' for struct snd_codec, add 'pcm_formats' for struct snd_codec_desc, these are used for accelerator usage. Current accelerator example is sample rate converter (SRC). Define struct snd_codec_desc_src for descript minmum and maxmum sample rates. And add 'src_d' in union snd_codec_options structure. These are mainly used for capbility query. Signed-off-by: Jaroslav Kysela Signed-off-by: Shengjiu Wang --- include/uapi/sound/compress_params.h | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/include/uapi/sound/compress_params.h b/include/uapi/sound/compress_params.h index ddc77322d571..bc7648a30746 100644 --- a/include/uapi/sound/compress_params.h +++ b/include/uapi/sound/compress_params.h @@ -334,6 +334,14 @@ union snd_codec_options { struct snd_dec_wma wma_d; struct snd_dec_alac alac_d; struct snd_dec_ape ape_d; + struct { + __u32 out_sample_rate; + } src_d; +} __attribute__((packed, aligned(4))); + +struct snd_codec_desc_src { + __u32 out_sample_rate_min; + __u32 out_sample_rate_max; } __attribute__((packed, aligned(4))); /** struct snd_codec_desc - description of codec capabilities @@ -347,6 +355,9 @@ union snd_codec_options { * @modes: Supported modes. See SND_AUDIOMODE defines * @formats: Supported formats. See SND_AUDIOSTREAMFORMAT defines * @min_buffer: Minimum buffer size handled by codec implementation + * @pcm_formats: Output (for decoders) or input (for encoders) + * PCM formats (required to accel mode, 0 for other modes) + * @u_space: union space (for codec dependent data) * @reserved: reserved for future use * * This structure provides a scalar value for profiles, modes and stream @@ -370,7 +381,12 @@ struct snd_codec_desc { __u32 modes; __u32 formats; __u32 min_buffer; - __u32 reserved[15]; + __u32 pcm_formats; + union { + __u32 u_space[6]; + struct snd_codec_desc_src src; + } __attribute__((packed, aligned(4))); + __u32 reserved[8]; } __attribute__((packed, aligned(4))); /** struct snd_codec @@ -395,6 +411,8 @@ struct snd_codec_desc { * @align: Block alignment in bytes of an audio sample. * Only required for PCM or IEC formats. * @options: encoder-specific settings + * @pcm_format: Output (for decoders) or input (for encoders) + * PCM formats (required to accel mode, 0 for other modes) * @reserved: reserved for future use */ @@ -411,7 +429,8 @@ struct snd_codec { __u32 format; __u32 align; union snd_codec_options options; - __u32 reserved[3]; + __u32 pcm_format; + __u32 reserved[2]; } __attribute__((packed, aligned(4))); #endif