From patchwork Wed Feb 1 13:49:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mohammad Rafi Shaik X-Patchwork-Id: 649287 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 74DD6C05027 for ; Wed, 1 Feb 2023 13:53:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231543AbjBANxX (ORCPT ); Wed, 1 Feb 2023 08:53:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45278 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232592AbjBANwr (ORCPT ); Wed, 1 Feb 2023 08:52:47 -0500 Received: from alexa-out-sd-02.qualcomm.com (alexa-out-sd-02.qualcomm.com [199.106.114.39]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87A1A677A6; Wed, 1 Feb 2023 05:52:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1675259557; x=1706795557; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=wBmBChPRMDvyUaZVMkF2hmabYMJY1CnETS2hVl+c0qg=; b=Wr1o8bHkbbIuEdmexoT5TtqXsBamGkzE/CL27X3DOnW7o91cVGb2P+rD o2kY744Yt5YtGPzToRJfp8XORM+Amlo3XzBB9n26+yFRGCicTxv02s5vX KFPIQprI4za7giq5hod2D1b2zSjcKQZcngNHcINZfM8XOPycN5QvZAaNm o=; Received: from unknown (HELO ironmsg-SD-alpha.qualcomm.com) ([10.53.140.30]) by alexa-out-sd-02.qualcomm.com with ESMTP; 01 Feb 2023 05:52:37 -0800 X-QCInternal: smtphost Received: from nalasex01b.na.qualcomm.com ([10.47.209.197]) by ironmsg-SD-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Feb 2023 05:52:37 -0800 Received: from hu-mohs-hyd.qualcomm.com (10.80.80.8) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.36; Wed, 1 Feb 2023 05:52:31 -0800 From: Mohammad Rafi Shaik To: , , , , , , , , , , , , , , , , CC: Mohammad Rafi Shaik Subject: [PATCH 12/14] ASoC: q6dsp: q6apm-dai: Add mmap and copy compress DAI callbacks Date: Wed, 1 Feb 2023 19:19:45 +0530 Message-ID: <20230201134947.1638197-13-quic_mohs@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230201134947.1638197-1-quic_mohs@quicinc.com> References: <20230201134947.1638197-1-quic_mohs@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01b.na.qualcomm.com (10.47.209.197) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add q6apm mmap and copy compress DAI callbacks to support compress offload playback. Signed-off-by: Mohammad Rafi Shaik Co-developed-by: Srinivas Kandagatla 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 8ee14822362b..2c0aa2f4caaf 100644 --- a/sound/soc/qcom/qdsp6/q6apm-dai.c +++ b/sound/soc/qcom/qdsp6/q6apm-dai.c @@ -740,6 +740,85 @@ static int q6apm_dai_compr_set_metadata(struct snd_soc_component *component, return ret; } +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 = stream->runtime; + struct q6apm_dai_rtd *prtd = runtime->private_data; + struct device *dev = component->dev; + + return dma_mmap_coherent(dev, vma, prtd->dma_buffer.area, prtd->dma_buffer.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 = stream->runtime; + struct q6apm_dai_rtd *prtd = runtime->private_data; + void *dstn; + unsigned long flags; + size_t copy; + u32 wflags = 0; + u32 app_pointer; + u32 bytes_received; + uint32_t bytes_to_write; + int avail, bytes_in_flight = 0; + + bytes_received = 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 = ALIGN(prtd->bytes_received, prtd->pcm_count); + + app_pointer = bytes_received/prtd->pcm_size; + app_pointer = bytes_received - (app_pointer * prtd->pcm_size); + dstn = prtd->dma_buffer.area + app_pointer; + + if (count < prtd->pcm_size - app_pointer) { + if (copy_from_user(dstn, buf, count)) + return -EFAULT; + } else { + copy = 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 = prtd->bytes_received - prtd->copied_total; + + if (prtd->next_track) { + prtd->next_track = false; + prtd->copied_total = ALIGN(prtd->copied_total, prtd->pcm_count); + prtd->bytes_sent = ALIGN(prtd->bytes_sent, prtd->pcm_count); + } + + prtd->bytes_received = bytes_received + count; + + /* Kick off the data to dsp if its starving!! */ + if (prtd->state == Q6APM_STREAM_RUNNING && (bytes_in_flight == 0)) { + bytes_to_write = prtd->pcm_count; + avail = prtd->bytes_received - prtd->bytes_sent; + + if (avail < prtd->pcm_count) + bytes_to_write = avail; + + q6apm_write_async_compr(prtd->graph, bytes_to_write, 0, 0, wflags); + prtd->bytes_sent += bytes_to_write; + } + + spin_unlock_irqrestore(&prtd->lock, flags); + + return count; +} + static const struct snd_compress_ops q6apm_dai_compress_ops = { .open = q6apm_dai_compr_open, .free = q6apm_dai_compr_free, @@ -750,6 +829,8 @@ static const struct snd_compress_ops q6apm_dai_compress_ops = { .ack = q6apm_dai_compr_ack, .set_params = q6apm_dai_compr_set_params, .set_metadata = q6apm_dai_compr_set_metadata, + .mmap = q6apm_dai_compr_mmap, + .copy = q6apm_compr_copy, }; static const struct snd_soc_component_driver q6apm_fe_dai_component = {