From nobody Tue Feb 10 07:41:38 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 932ECEB64D9 for ; Mon, 19 Jun 2023 10:17:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231396AbjFSKRm (ORCPT ); Mon, 19 Jun 2023 06:17:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59646 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231958AbjFSKRT (ORCPT ); Mon, 19 Jun 2023 06:17:19 -0400 Received: from mail-wr1-x42b.google.com (mail-wr1-x42b.google.com [IPv6:2a00:1450:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6859A10D2 for ; Mon, 19 Jun 2023 03:17:10 -0700 (PDT) Received: by mail-wr1-x42b.google.com with SMTP id ffacd0b85a97d-311275efaf8so1929119f8f.3 for ; Mon, 19 Jun 2023 03:17:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1687169829; x=1689761829; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=7txYCxaVdCIzUmWm+LpJfmUPkElgoh9gHNmxHigBQcU=; b=nRWtKAtYtZwQ37U5rmUB4JNSYm73slYhfU2qV3poD/fHYVfbfqiULogkJ5BqgcNKyl yXBVtAri2IGb8PQkNptDRAnrAXe/9VD9FoT0zsWCTvzfOA8wc3qujmcHOfgn2SLYmvUE KgkJUqkq2+EnNSKjM5ofw35CVs6/n2NL42/2VWHowCJ6dEMGQY8ONpa0D7RNLj6xXFTu jP0a5dxRzZJUd2kFRUUkBVQyIr3gfjJif1S3pCgT1UIaFR/DlgSnKEpqnESDergK59S9 sSZSH2JX2+HBxGpuw6THiYPOn6YYPD/MeLWR2x5Pbkxbiw7Ax8BrYeAoVH5OUK3DKvk9 JPZg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687169829; x=1689761829; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=7txYCxaVdCIzUmWm+LpJfmUPkElgoh9gHNmxHigBQcU=; b=CCbYWngYBHlij3mTRonYZIoEutj2aE1AS+XEViJzGAMOxGesYwxUjLjyVUrtG6Hbpz rP4cGAI6Qy5+kDUPQWLVOg2URC0h8dOoEpYmvcMHmUMxOhtde/IbpxJ3+T0QXOzOZ1Pe zRy0M1ZCPpRHdQRMTtKxdefwDIy3snUt0z2YZD7M+nneU46XOcv/ds+zY1DaWygHfOeU nb2Wxaa2CRzB9H6wRELLFlExBOKdN7LY5SsCYOawGXBxvTnkT/cwMhHHyd1QZ8p1Tl95 QMZ9OjO3xZxXzzoop6DyO6gEHQdEPIqa2SZoxHBVToG22r5dYVNcNgJ9ekNvFZd9X8bt Gs3Q== X-Gm-Message-State: AC+VfDwd8qQ2SG5e3h05h9dhxmH0qjfaSHPzG33Ka37TdYsd82zhDxI3 lfYK57pB3sCixgYDYlclsd4kYw== X-Google-Smtp-Source: ACHHUZ62UqNE78KOzcO6WZERXpwNqPBVI+AS7V7RFiGFsoO6+/Yt0jcotfsbe2XHpKTG089aTTCDeg== X-Received: by 2002:a5d:6e42:0:b0:306:31fb:1c3e with SMTP id j2-20020a5d6e42000000b0030631fb1c3emr5220830wrz.26.1687169828987; Mon, 19 Jun 2023 03:17:08 -0700 (PDT) Received: from localhost.localdomain ([5.133.47.210]) by smtp.gmail.com with ESMTPSA id c2-20020a5d5282000000b002fae7408544sm31146922wrv.108.2023.06.19.03.17.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Jun 2023 03:17:08 -0700 (PDT) From: Srinivas Kandagatla To: broonie@kernel.org Cc: perex@perex.cz, tiwai@suse.com, lgirdwood@gmail.com, ckeepax@opensource.cirrus.com, kuninori.morimoto.gx@renesas.com, linux-kernel@vger.kernel.org, pierre-louis.bossart@linux.intel.com, alsa-devel@alsa-project.org, Srinivas Kandagatla , Mohammad Rafi Shaik Subject: [PATCH v3 11/11] ASoC: q6dsp: q6apm-dai: Add mmap and copy compress DAI callbacks Date: Mon, 19 Jun 2023 11:16:53 +0100 Message-Id: <20230619101653.9750-12-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20230619101653.9750-1-srinivas.kandagatla@linaro.org> References: <20230619101653.9750-1-srinivas.kandagatla@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add q6apm mmap and copy compress DAI callbacks to support compress offload playback. Co-developed-by: Mohammad Rafi Shaik Signed-off-by: Mohammad Rafi Shaik Signed-off-by: Srinivas Kandagatla --- sound/soc/qcom/qdsp6/q6apm-dai.c | 81 ++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/sound/soc/qcom/qdsp6/q6apm-dai.c b/sound/soc/qcom/qdsp6/q6apm-= dai.c index c67147e5388b..5eb0b864c740 100644 --- a/sound/soc/qcom/qdsp6/q6apm-dai.c +++ b/sound/soc/qcom/qdsp6/q6apm-dai.c @@ -737,6 +737,85 @@ static int q6apm_dai_compr_set_metadata(struct snd_soc= _component *component, return ret; } =20 +static int q6apm_dai_compr_mmap(struct snd_soc_component *component, + struct snd_compr_stream *stream, + struct vm_area_struct *vma) +{ + struct snd_compr_runtime *runtime =3D stream->runtime; + struct q6apm_dai_rtd *prtd =3D runtime->private_data; + struct device *dev =3D component->dev; + + return dma_mmap_coherent(dev, vma, prtd->dma_buffer.area, prtd->dma_buffe= r.addr, + prtd->dma_buffer.bytes); +} + +static int q6apm_compr_copy(struct snd_soc_component *component, + struct snd_compr_stream *stream, char __user *buf, + size_t count) +{ + struct snd_compr_runtime *runtime =3D stream->runtime; + struct q6apm_dai_rtd *prtd =3D runtime->private_data; + void *dstn; + unsigned long flags; + size_t copy; + u32 wflags =3D 0; + u32 app_pointer; + u32 bytes_received; + uint32_t bytes_to_write; + int avail, bytes_in_flight =3D 0; + + bytes_received =3D prtd->bytes_received; + + /** + * Make sure that next track data pointer is aligned at 32 bit boundary + * This is a Mandatory requirement from DSP data buffers alignment + */ + if (prtd->next_track) + bytes_received =3D ALIGN(prtd->bytes_received, prtd->pcm_count); + + app_pointer =3D bytes_received/prtd->pcm_size; + app_pointer =3D bytes_received - (app_pointer * prtd->pcm_size); + dstn =3D prtd->dma_buffer.area + app_pointer; + + if (count < prtd->pcm_size - app_pointer) { + if (copy_from_user(dstn, buf, count)) + return -EFAULT; + } else { + copy =3D prtd->pcm_size - app_pointer; + if (copy_from_user(dstn, buf, copy)) + return -EFAULT; + if (copy_from_user(prtd->dma_buffer.area, buf + copy, count - copy)) + return -EFAULT; + } + + spin_lock_irqsave(&prtd->lock, flags); + bytes_in_flight =3D prtd->bytes_received - prtd->copied_total; + + if (prtd->next_track) { + prtd->next_track =3D false; + prtd->copied_total =3D ALIGN(prtd->copied_total, prtd->pcm_count); + prtd->bytes_sent =3D ALIGN(prtd->bytes_sent, prtd->pcm_count); + } + + prtd->bytes_received =3D bytes_received + count; + + /* Kick off the data to dsp if its starving!! */ + if (prtd->state =3D=3D Q6APM_STREAM_RUNNING && (bytes_in_flight =3D=3D 0)= ) { + bytes_to_write =3D prtd->pcm_count; + avail =3D prtd->bytes_received - prtd->bytes_sent; + + if (avail < prtd->pcm_count) + bytes_to_write =3D avail; + + q6apm_write_async(prtd->graph, bytes_to_write, 0, 0, wflags); + prtd->bytes_sent +=3D bytes_to_write; + } + + spin_unlock_irqrestore(&prtd->lock, flags); + + return count; +} + static const struct snd_compress_ops q6apm_dai_compress_ops =3D { .open =3D q6apm_dai_compr_open, .free =3D q6apm_dai_compr_free, @@ -747,6 +826,8 @@ static const struct snd_compress_ops q6apm_dai_compress= _ops =3D { .ack =3D q6apm_dai_compr_ack, .set_params =3D q6apm_dai_compr_set_params, .set_metadata =3D q6apm_dai_compr_set_metadata, + .mmap =3D q6apm_dai_compr_mmap, + .copy =3D q6apm_compr_copy, }; =20 static const struct snd_soc_component_driver q6apm_fe_dai_component =3D { --=20 2.21.0