From patchwork Tue May 5 20:53:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Deucher X-Patchwork-Id: 192813 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.7 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, UNWANTED_LANGUAGE_BODY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 368CEC47254 for ; Tue, 5 May 2020 21:00:28 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AF0CD2068E for ; Tue, 5 May 2020 21:00:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="i7GKufHz"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mNM1t4iV" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AF0CD2068E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 183301770; Tue, 5 May 2020 22:59:36 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 183301770 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1588712426; bh=Igla09ETp60iY1gEx1MlGo1GxsIuTceT4ToXnMNebzM=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=i7GKufHzKzG+E5+8GLQBW5Tq3gMVJYuhz81fEsX8LhdSLPTAR62XonLibgiSuAoHo TjVkrbLfC8cgtaRLW0aszAIl7kahx+S9KTaZuTaexh7Jtk27yIhUoUG6H+G0W1uvWr xERDXYZ1qhMh0vr6PJ+M4ryvSABxEMdt/Sr3GBJI= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 41509F802F8; Tue, 5 May 2020 22:54:11 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 4D7BFF802A7; Tue, 5 May 2020 22:54:01 +0200 (CEST) Received: from mail-qv1-xf43.google.com (mail-qv1-xf43.google.com [IPv6:2607:f8b0:4864:20::f43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 217C7F800DE for ; Tue, 5 May 2020 22:53:50 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 217C7F800DE Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mNM1t4iV" Received: by mail-qv1-xf43.google.com with SMTP id di6so1767348qvb.10 for ; Tue, 05 May 2020 13:53:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=XKmSnGYNJYfMgcjNS7NMC+RW900x2WF7flSWrL//nLY=; b=mNM1t4iVUhmNy+EwBiHOBNh3wnuqB85BqlTNM7E7K5bZBCUIfJS/yakqI7AxtYCJP+ laA1BS8sRXbhsEMIQXuwT0+eG5XGHvLIjnPIBUm/e60ajdSR01vkWQhETXDtVCBhHscE SlrgiQRezan9HrQ3sxp5J3N4ih+2unJ0cnjXMqGxBxiGmuoabFy4wIrBWJ2w2Qf7p0ce R0fBtZ7SHdDt6ucS1IrpDUo97D1RH9ibSyWSTNHLzQLxKlSRGF/7q1GK/yUX0whs9G0b SgIt/mInuWy3v2+lLwBGvzTzdfHUL/MQLz/XLwx6QYNCiH/4BuvonEN9SJmIMRfqHDHj 0q/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=XKmSnGYNJYfMgcjNS7NMC+RW900x2WF7flSWrL//nLY=; b=M5z4hUjHixwV23RQEDPnXtIp+ybiPaoWJUWO9dZhdC9T8eQxY6qRkXghIRFUzpUaDX TLW89HLJqdPInaDbHhpdNeBWxx0jBSQCcMtJEOapT/i4o79OPgWyB9nEMIWvXzsb+a9Q MdT0ebWN9fPCELA7Qd/otr4P2894quuQRhl9roMkbPdhw5J+bhsa6s2W65ARIgyhTMZm Re1aTR/l/cOOv3FaXNlEcgCfPFKuZ4/d+wsT9DqsARyattMR18rhJ8yewdL/s2Ys52bH hRJKLdRlWNoOwNIV17wmMeDojS1SgVRu32udIeRr4LV8mEGe9UPLuzH+LAEYLVvYpF5O SNYQ== X-Gm-Message-State: AGi0PuYGWuX7UTjFVPybQwcezQ/GL5BdFYQRIJYYMherZNCVIS1dFEP1 GqaWxrEYNqt/gJC4j6mhmbWvesbo X-Google-Smtp-Source: APiQypLciT4SuIOMrAbayYTD+AYqnAp/sLVvy6tlxVh5+HQtCRuxh/L9gt8zmx5IGV6dlgKUXJQGMQ== X-Received: by 2002:a05:6214:572:: with SMTP id cj18mr4602002qvb.209.1588712027048; Tue, 05 May 2020 13:53:47 -0700 (PDT) Received: from tr4.amd.com (atlvpn.amd.com. [165.204.84.11]) by smtp.gmail.com with ESMTPSA id k58sm2972513qtf.40.2020.05.05.13.53.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 May 2020 13:53:46 -0700 (PDT) From: Alex Deucher X-Google-Original-From: Alex Deucher To: alsa-devel@alsa-project.org, broonie@kernel.org, vijendar.mukunda@amd.com, tiwai@suse.de Subject: [PATCH 08/14] ASoC: amd: add ACP PDM DMA driver dai ops Date: Tue, 5 May 2020 16:53:21 -0400 Message-Id: <20200505205327.642282-9-alexander.deucher@amd.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20200505205327.642282-1-alexander.deucher@amd.com> References: <20200505205327.642282-1-alexander.deucher@amd.com> MIME-Version: 1.0 Cc: Alex Deucher , Vijendar Mukunda X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: Vijendar Mukunda This patch adds ACP3x PDM DMA driver DAI operations. Signed-off-by: Vijendar Mukunda Signed-off-by: Alex Deucher --- sound/soc/amd/renoir/acp3x-pdm-dma.c | 147 ++++++++++++++++++++++++++- sound/soc/amd/renoir/rn_acp3x.h | 7 ++ 2 files changed, 152 insertions(+), 2 deletions(-) diff --git a/sound/soc/amd/renoir/acp3x-pdm-dma.c b/sound/soc/amd/renoir/acp3x-pdm-dma.c index 0b5dc49f42c3..6e8d5b85bce4 100644 --- a/sound/soc/amd/renoir/acp3x-pdm-dma.c +++ b/sound/soc/amd/renoir/acp3x-pdm-dma.c @@ -71,6 +71,27 @@ static void init_pdm_ring_buffer(u32 physical_addr, rn_writel(0x01, acp_base + ACPAXI2AXI_ATU_CTRL); } +static void config_pdm_stream_params(unsigned int ch_mask, + void __iomem *acp_base) +{ + rn_writel(ch_mask, acp_base + ACP_WOV_PDM_NO_OF_CHANNELS); + rn_writel(PDM_DECIMATION_FACTOR, acp_base + + ACP_WOV_PDM_DECIMATION_FACTOR); +} + +static void enable_pdm_clock(void __iomem *acp_base) +{ + u32 pdm_clk_enable, pdm_ctrl; + + pdm_clk_enable = ACP_PDM_CLK_FREQ_MASK; + pdm_ctrl = 0x00; + + rn_writel(pdm_clk_enable, acp_base + ACP_WOV_CLK_CTRL); + pdm_ctrl = rn_readl(acp_base + ACP_WOV_MISC_CTRL); + pdm_ctrl |= ACP_WOV_MISC_CTRL_MASK; + rn_writel(pdm_ctrl, acp_base + ACP_WOV_MISC_CTRL); +} + static void enable_pdm_interrupts(void __iomem *acp_base) { u32 ext_int_ctrl; @@ -89,6 +110,77 @@ static void disable_pdm_interrupts(void __iomem *acp_base) rn_writel(ext_int_ctrl, acp_base + ACP_EXTERNAL_INTR_CNTL); } +static bool check_pdm_dma_status(void __iomem *acp_base) +{ + bool pdm_dma_status; + u32 pdm_enable, pdm_dma_enable; + + pdm_dma_status = false; + pdm_enable = rn_readl(acp_base + ACP_WOV_PDM_ENABLE); + pdm_dma_enable = rn_readl(acp_base + ACP_WOV_PDM_DMA_ENABLE); + if ((pdm_enable & ACP_PDM_ENABLE) && (pdm_dma_enable & + ACP_PDM_DMA_EN_STATUS)) + pdm_dma_status = true; + return pdm_dma_status; +} + +static int start_pdm_dma(void __iomem *acp_base) +{ + u32 pdm_enable; + u32 pdm_dma_enable; + int timeout; + + pdm_enable = 0x01; + pdm_dma_enable = 0x01; + + enable_pdm_clock(acp_base); + rn_writel(pdm_enable, acp_base + ACP_WOV_PDM_ENABLE); + rn_writel(pdm_dma_enable, acp_base + ACP_WOV_PDM_DMA_ENABLE); + pdm_dma_enable = 0x00; + timeout = 0; + while (++timeout < 20000) { + pdm_dma_enable = rn_readl(acp_base + ACP_WOV_PDM_DMA_ENABLE); + if ((pdm_dma_enable & 0x02) == ACP_PDM_DMA_EN_STATUS) + return 0; + udelay(5); + } + return -ETIMEDOUT; +} + +static int stop_pdm_dma(void __iomem *acp_base) +{ + u32 pdm_enable, pdm_dma_enable, pdm_fifo_flush; + int timeout; + + pdm_enable = 0x00; + pdm_dma_enable = 0x00; + pdm_fifo_flush = 0x00; + + pdm_enable = rn_readl(acp_base + ACP_WOV_PDM_ENABLE); + pdm_dma_enable = rn_readl(acp_base + ACP_WOV_PDM_DMA_ENABLE); + if (pdm_dma_enable & 0x01) { + pdm_dma_enable = 0x02; + rn_writel(pdm_dma_enable, acp_base + ACP_WOV_PDM_DMA_ENABLE); + pdm_dma_enable = 0x00; + timeout = 0; + while (++timeout < 20000) { + pdm_dma_enable = rn_readl(acp_base + + ACP_WOV_PDM_DMA_ENABLE); + if ((pdm_dma_enable & 0x02) == 0x00) + return 0; + udelay(5); + } + if (timeout == 20000) + return -ETIMEDOUT; + } + if (pdm_enable == ACP_PDM_ENABLE) { + pdm_enable = ACP_PDM_DISABLE; + rn_writel(pdm_enable, acp_base + ACP_WOV_PDM_ENABLE); + } + rn_writel(0x01, acp_base + ACP_WOV_PDM_FIFO_FLUSH); + return 0; +} + static void config_acp_dma(struct pdm_stream_instance *rtd, int direction) { u16 page_idx; @@ -234,9 +326,60 @@ static int acp_pdm_dma_close(struct snd_soc_component *component, return 0; } +static int acp_pdm_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct pdm_stream_instance *rtd; + unsigned int ch_mask; + + rtd = substream->runtime->private_data; + switch (params_channels(params)) { + case TWO_CH: + default: + ch_mask = 0x00; + break; + } + config_pdm_stream_params(ch_mask, rtd->acp_base); + return 0; +} + +static int acp_pdm_dai_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + struct pdm_stream_instance *rtd; + int ret; + bool pdm_status; + + rtd = substream->runtime->private_data; + ret = 0; + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + rtd->bytescount = acp_pdm_get_byte_count(rtd, + substream->stream); + pdm_status = check_pdm_dma_status(rtd->acp_base); + if (!pdm_status) + ret = start_pdm_dma(rtd->acp_base); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + pdm_status = check_pdm_dma_status(rtd->acp_base); + if (pdm_status) + ret = stop_pdm_dma(rtd->acp_base); + break; + default: + ret = -EINVAL; + break; + } + return ret; +} + static struct snd_soc_dai_ops acp_pdm_dai_ops = { - .hw_params = NULL, - .trigger = NULL, + .hw_params = acp_pdm_dai_hw_params, + .trigger = acp_pdm_dai_trigger, }; static struct snd_soc_dai_driver acp_pdm_dai_driver = { diff --git a/sound/soc/amd/renoir/rn_acp3x.h b/sound/soc/amd/renoir/rn_acp3x.h index 3536d24374f3..f63e232565af 100644 --- a/sound/soc/amd/renoir/rn_acp3x.h +++ b/sound/soc/amd/renoir/rn_acp3x.h @@ -31,6 +31,13 @@ #define PDM_DMA_STAT 0x10 #define PDM_DMA_INTR_MASK 0x10000 #define ACP_ERROR_STAT 29 +#define PDM_DECIMATION_FACTOR 0x2 +#define ACP_PDM_CLK_FREQ_MASK 0x07 +#define ACP_WOV_MISC_CTRL_MASK 0x10 +#define ACP_PDM_ENABLE 0x01 +#define ACP_PDM_DISABLE 0x00 +#define ACP_PDM_DMA_EN_STATUS 0x02 +#define TWO_CH 0x02 #define ACP_SRAM_PTE_OFFSET 0x02050000 #define PAGE_SIZE_4K_ENABLE 0x2