From patchwork Wed Dec 13 12:35:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jianhua Lu X-Patchwork-Id: 13490843 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="RBn/ou01" Received: from mail-pf1-x429.google.com (mail-pf1-x429.google.com [IPv6:2607:f8b0:4864:20::429]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BD130A4; Wed, 13 Dec 2023 04:36:10 -0800 (PST) Received: by mail-pf1-x429.google.com with SMTP id d2e1a72fcca58-6cea5548eb2so6084863b3a.0; Wed, 13 Dec 2023 04:36:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1702470970; x=1703075770; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=rYGQmeoSqfkicHbElfiPvY8CF43myiqrL//zoYaASs8=; b=RBn/ou01ctheAZXDuwbzJmyOT9uxtab/kI9ipYWCqUJv0G9K6MS1CXSYK2SYAZCAD/ /rQFuxskJ9WDepLLmiCd+EgJBnpgs2TgIg6Edz2THkS6mJWQDJc0rynzdvJRyIZWMgFD XjYTfda0kMc2/mdnS1/e9Csyjq1IkPuqGFzSn9IHejOVEBDNPzSILBevyj6WcZFaJXgV SNf1W2Xq8FVRaP8Ey3TmnjRs/vAYaXjliXDZ+32DwE1iLsngA4JpSHI77JAwcfyyx0Dw p3iUrYqAbwNZCeXhTzapJy/wTyPAfPa+YnoI2USpX4K2uxXvIrDI4wwTeLh5jDWab6vK D+YQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702470970; x=1703075770; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=rYGQmeoSqfkicHbElfiPvY8CF43myiqrL//zoYaASs8=; b=VoyFt6gp+IURhoFOOLZrnMNEXI2bm04cefBvoJYaK4jCbF5LZdOApOm5ACozuYc6Pj cIlIfbsccseJM5c4w0QnOpf6oeMAS2hazAq7gyzkK8VKzFTPB/+RQqy3+99tjM6cA0Lf dQ83HG5tndGFJ0v7LxDAsvNURP/3tZvXi9+LHK8ibQ4vuj+HVp17+5fcjoQpOQY8EkG5 0V5gd9iqBQLNZLOTDd95zaODROKMwpdO5B3t7TRE9ru9Oq8Nvcd5hAmk8EAD1zUMgRu4 0tQyubXjsY1SFFg8ja7qntBiN5zWPEub9jBlOyysyt2yO4m9gJBiUN37VDTuAJsf8k2/ gIaQ== X-Gm-Message-State: AOJu0Yx8a4ltvw7mCDmLKbxP8Lttf5t8m1lBoeqc7fc47zbHTUWfQ1fY hrcP1w0uvBTG8lkwhYfW4oM= X-Google-Smtp-Source: AGHT+IEbx8JLvsojpRz5MPXpDktCT7We9sURVnTHr4RL4smgdlCApyjvryZnRRvdKFVASMyp0xtahg== X-Received: by 2002:a05:6a00:2354:b0:6cd:e2c2:13d7 with SMTP id j20-20020a056a00235400b006cde2c213d7mr9982036pfj.23.1702470970088; Wed, 13 Dec 2023 04:36:10 -0800 (PST) Received: from localhost.localdomain ([117.189.237.103]) by smtp.gmail.com with ESMTPSA id x3-20020a056a00188300b0068fe5a5a566sm10193584pfh.142.2023.12.13.04.36.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Dec 2023 04:36:09 -0800 (PST) From: Jianhua Lu To: Srinivas Kandagatla , Banajit Goswami , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai Cc: alsa-devel@alsa-project.org, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, Jianhua Lu Subject: [PATCH v3 1/4] ASoC: qcom: common: Add qcom_snd_tdm_hw_params function Date: Wed, 13 Dec 2023 20:35:53 +0800 Message-ID: <20231213123556.20469-1-lujianhua000@gmail.com> X-Mailer: git-send-email 2.41.0 Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add qcom TDM setup function to support TDM ports for qcom platform. Signed-off-by: Jianhua Lu --- Changes in v3: 1. new patch 2. split qcom_snd_tdm_hw_params function from [Patch v2 1/2] to here sound/soc/qcom/common.c | 69 +++++++++++++++++++++++++++++++++++++++++ sound/soc/qcom/common.h | 2 ++ 2 files changed, 71 insertions(+) diff --git a/sound/soc/qcom/common.c b/sound/soc/qcom/common.c index 483bbf53a541..c0ab201416ef 100644 --- a/sound/soc/qcom/common.c +++ b/sound/soc/qcom/common.c @@ -5,6 +5,7 @@ #include #include #include +#include #include #include "common.h" @@ -13,6 +14,8 @@ static const struct snd_soc_dapm_widget qcom_jack_snd_widgets[] = { SND_SOC_DAPM_MIC("Mic Jack", NULL), }; +static unsigned int tdm_slot_offset[8] = { 0, 4, 8, 12, 16, 20, 24, 28 }; + int qcom_snd_parse_of(struct snd_soc_card *card) { struct device_node *np; @@ -239,4 +242,70 @@ int qcom_snd_wcd_jack_setup(struct snd_soc_pcm_runtime *rtd, return 0; } EXPORT_SYMBOL_GPL(qcom_snd_wcd_jack_setup); + +int qcom_snd_tdm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + int slots = ARRAY_SIZE(tdm_slot_offset); + int channels, slot_width, tx_mask, rx_mask; + int ret; + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + slot_width = 16; + break; + case SNDRV_PCM_FORMAT_S24_LE: + slot_width = 24; + break; + case SNDRV_PCM_FORMAT_S32_LE: + slot_width = 32; + break; + default: + dev_err(rtd->dev, "%s: invalid param format 0x%x\n", __func__, + params_format(params)); + return -EINVAL; + } + + channels = params_channels(params); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + tx_mask = 0; + rx_mask = BIT(channels) - 1; + ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_mask, rx_mask, slots, slot_width); + if (ret < 0) { + dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n", + __func__, ret); + return ret; + } + + ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL, channels, + tdm_slot_offset); + if (ret < 0) { + dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n", + __func__, ret); + return ret; + } + } else { + tx_mask = 0xf; + rx_mask = 0; + ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_mask, rx_mask, slots, slot_width); + if (ret < 0) { + dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n", + __func__, ret); + return ret; + } + + ret = snd_soc_dai_set_channel_map(cpu_dai, channels, + tdm_slot_offset, 0, NULL); + if (ret < 0) { + dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n", + __func__, ret); + return ret; + } + } + + return 0; +} +EXPORT_SYMBOL_GPL(qcom_snd_tdm_hw_params); MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/qcom/common.h b/sound/soc/qcom/common.h index d7f80ee5ae26..b583110f556e 100644 --- a/sound/soc/qcom/common.h +++ b/sound/soc/qcom/common.h @@ -9,5 +9,7 @@ int qcom_snd_parse_of(struct snd_soc_card *card); int qcom_snd_wcd_jack_setup(struct snd_soc_pcm_runtime *rtd, struct snd_soc_jack *jack, bool *jack_setup); +int qcom_snd_tdm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params); #endif