ASoC: cros_ec_codec: Support setting bclk ratio (99b4f439) · Commits · 戴 / test

sound/soc/codecs/cros_ec_codec.c

+22 −3

Original line number	Diff line number	Diff line
		@@ -45,6 +45,9 @@ struct cros_ec_codec_priv {
		/* DMIC */
		atomic_t dmic_probed;

		/* I2S_RX */
		uint32_t i2s_rx_bclk_ratio;

		/* WoV */
		bool wov_enabled;
		uint8_t *wov_audio_shm_p;
		@@ -259,6 +262,7 @@ static int i2s_rx_hw_params(struct snd_pcm_substream *substream,
		snd_soc_component_get_drvdata(component);
		struct ec_param_ec_codec_i2s_rx p;
		enum ec_codec_i2s_rx_sample_depth depth;
		uint32_t bclk;
		int ret;

		if (params_rate(params) != 48000)
		@@ -284,15 +288,29 @@ static int i2s_rx_hw_params(struct snd_pcm_substream *substream,
		if (ret < 0)
		return ret;

		dev_dbg(component->dev, "set bclk to %u\n",
		snd_soc_params_to_bclk(params));
		if (priv->i2s_rx_bclk_ratio)
		bclk = params_rate(params) * priv->i2s_rx_bclk_ratio;
		else
		bclk = snd_soc_params_to_bclk(params);

		dev_dbg(component->dev, "set bclk to %u\n", bclk);

		p.cmd = EC_CODEC_I2S_RX_SET_BCLK;
		p.set_bclk_param.bclk = snd_soc_params_to_bclk(params);
		p.set_bclk_param.bclk = bclk;
		return send_ec_host_command(priv->ec_device, EC_CMD_EC_CODEC_I2S_RX,
		(uint8_t *)&p, sizeof(p), NULL, 0);
		}

		static int i2s_rx_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
		{
		struct snd_soc_component *component = dai->component;
		struct cros_ec_codec_priv *priv =
		snd_soc_component_get_drvdata(component);

		priv->i2s_rx_bclk_ratio = ratio;
		return 0;
		}

		static int i2s_rx_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
		{
		struct snd_soc_component *component = dai->component;
		@@ -340,6 +358,7 @@ static int i2s_rx_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
		static const struct snd_soc_dai_ops i2s_rx_dai_ops = {
		.hw_params = i2s_rx_hw_params,
		.set_fmt = i2s_rx_set_fmt,
		.set_bclk_ratio = i2s_rx_set_bclk_ratio,
		};

		static int i2s_rx_event(struct snd_soc_dapm_widget *w,

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