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C++ params_width函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中params_width函数的典型用法代码示例。如果您正苦于以下问题：C++ params_width函数的具体用法？C++ params_width怎么用？C++ params_width使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了params_width函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: tas571x_hw_params

static int tas571x_hw_params(struct snd_pcm_substream *substream,
			     struct snd_pcm_hw_params *params,
			     struct snd_soc_dai *dai)
{
	struct tas571x_private *priv = snd_soc_component_get_drvdata(dai->component);
	u32 val;

	switch (priv->format & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_RIGHT_J:
		val = 0x00;
		break;
	case SND_SOC_DAIFMT_I2S:
		val = 0x03;
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		val = 0x06;
		break;
	default:
		return -EINVAL;
	}

	if (params_width(params) >= 24)
		val += 2;
	else if (params_width(params) >= 20)
		val += 1;

	return regmap_update_bits(priv->regmap, TAS571X_SDI_REG,
				  TAS571X_SDI_FMT_MASK, val);
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:29，代码来源:tas571x.c


示例2: cs35l33_pcm_hw_params

static int cs35l33_pcm_hw_params(struct snd_pcm_substream *substream,
				 struct snd_pcm_hw_params *params,
				 struct snd_soc_dai *dai)
{
	struct snd_soc_component *component = dai->component;
	struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
	int sample_size = params_width(params);
	int coeff = cs35l33_get_mclk_coeff(priv->mclk_int, params_rate(params));

	if (coeff < 0)
		return coeff;

	regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
		CS35L33_ADSP_FS | CS35L33_INT_FS_RATE,
		cs35l33_mclk_coeffs[coeff].int_fs_ratio
		| cs35l33_mclk_coeffs[coeff].adsp_rate);

	if (priv->is_tdm_mode) {
		sample_size = (sample_size / 8) - 1;
		if (sample_size > 2)
			sample_size = 2;
		regmap_update_bits(priv->regmap, CS35L33_RX_AUD,
			CS35L33_AUDIN_RX_DEPTH,
			sample_size << CS35L33_AUDIN_RX_DEPTH_SHIFT);
	}

	dev_dbg(component->dev, "sample rate=%d, bits per sample=%d\n",
		params_rate(params), params_width(params));

	return 0;
}
开发者ID:Lyude，项目名称:linux，代码行数:31，代码来源:cs35l33.c


示例3: wl1273_hw_params

static int wl1273_hw_params(struct snd_pcm_substream *substream,
			    struct snd_pcm_hw_params *params,
			    struct snd_soc_dai *dai)
{
	struct wl1273_priv *wl1273 = snd_soc_codec_get_drvdata(dai->codec);
	struct wl1273_core *core = wl1273->core;
	unsigned int rate, width, r;

	if (params_width(params) != 16) {
		dev_err(dai->dev, "%d bits/sample not supported\n",
			params_width(params));
		return -EINVAL;
	}

	rate = params_rate(params);
	width =  hw_param_interval(params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min;

	if (wl1273->mode == WL1273_MODE_BT) {
		if (rate != 8000) {
			pr_err("Rate %d not supported.\n", params_rate(params));
			return -EINVAL;
		}

		if (params_channels(params) != 1) {
			pr_err("Only mono supported.\n");
			return -EINVAL;
		}

		return 0;
	}

	if (wl1273->mode == WL1273_MODE_FM_TX &&
	    substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
		pr_err("Only playback supported with TX.\n");
		return -EINVAL;
	}

	if (wl1273->mode == WL1273_MODE_FM_RX  &&
	    substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
		pr_err("Only capture supported with RX.\n");
		return -EINVAL;
	}

	if (wl1273->mode != WL1273_MODE_FM_RX  &&
	    wl1273->mode != WL1273_MODE_FM_TX) {
		pr_err("Unexpected mode: %d.\n", wl1273->mode);
		return -EINVAL;
	}

	r = snd_wl1273_fm_set_i2s_mode(core, rate, width);
	if (r)
		return r;

	wl1273->channels = params_channels(params);
	r = snd_wl1273_fm_set_channel_number(core, wl1273->channels);
	if (r)
		return r;

	return 0;
}
开发者ID:020gzh，项目名称:linux，代码行数:60，代码来源:wl1273.c


示例4: wm8804_hw_params

static int wm8804_hw_params(struct snd_pcm_substream *substream,
			    struct snd_pcm_hw_params *params,
			    struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec;
	u16 blen;

	codec = dai->codec;

	switch (params_width(params)) {
	case 16:
		blen = 0x0;
		break;
	case 20:
		blen = 0x1;
		break;
	case 24:
		blen = 0x2;
		break;
	default:
		dev_err(dai->dev, "Unsupported word length: %u\n",
			params_width(params));
		return -EINVAL;
	}

	/* set word length */
	snd_soc_update_bits(codec, WM8804_AIFTX, 0xc, blen << 2);
	snd_soc_update_bits(codec, WM8804_AIFRX, 0xc, blen << 2);

	return 0;
}
开发者ID:3null，项目名称:linux，代码行数:31，代码来源:wm8804.c


示例5: wm8960_hw_params

static int wm8960_hw_params(struct snd_pcm_substream *substream,
			    struct snd_pcm_hw_params *params,
			    struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
//	u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
	int i;

	/* bit size */
	switch (params_width(params)) {
	case 16:
		break;
	case 20:
//		iface |= 0x0004;
		break;
	case 24:
//		iface |= 0x0008;
		break;
	default:
		dev_err(codec->dev, "unsupported width %d\n",
			params_width(params));
		return -EINVAL;
	}

	/* Update filters for the new rate */
	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
	}

	/* set iface */
//	snd_soc_write(codec, WM8960_IFACE1, iface);
	return 0;
}
开发者ID:openspeaker，项目名称:os-wrt-cc，代码行数:32，代码来源:wm8960.c


示例6: wm8741_hw_params

static int wm8741_hw_params(struct snd_pcm_substream *substream,
			    struct snd_pcm_hw_params *params,
			    struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec);
	unsigned int iface;
	int i;

	/* The set of sample rates that can be supported depends on the
	 * MCLK supplied to the CODEC - enforce this.
	 */
	if (!wm8741->sysclk) {
		dev_err(codec->dev,
			"No MCLK configured, call set_sysclk() on init or in hw_params\n");
		return -EINVAL;
	}

	/* Find a supported LRCLK rate */
	for (i = 0; i < wm8741->sysclk_constraints->count; i++) {
		if (wm8741->sysclk_constraints->list[i] == params_rate(params))
			break;
	}

	if (i == wm8741->sysclk_constraints->count) {
		dev_err(codec->dev, "LRCLK %d unsupported with MCLK %d\n",
			params_rate(params), wm8741->sysclk);
		return -EINVAL;
	}

	/* bit size */
	switch (params_width(params)) {
	case 16:
		iface = 0x0;
		break;
	case 20:
		iface = 0x1;
		break;
	case 24:
		iface = 0x2;
		break;
	case 32:
		iface = 0x3;
		break;
	default:
		dev_dbg(codec->dev, "wm8741_hw_params:    Unsupported bit size param = %d",
			params_width(params));
		return -EINVAL;
	}

	dev_dbg(codec->dev, "wm8741_hw_params:    bit size param = %d, rate param = %d",
		params_width(params), params_rate(params));

	snd_soc_update_bits(codec, WM8741_FORMAT_CONTROL, WM8741_IWL_MASK,
			    iface);

	return 0;
}
开发者ID:ReneNyffenegger，项目名称:linux，代码行数:58，代码来源:wm8741.c


示例7: pcm1789_hw_params

static int pcm1789_hw_params(struct snd_pcm_substream *substream,
			     struct snd_pcm_hw_params *params,
			     struct snd_soc_dai *codec_dai)
{
	struct snd_soc_component *component = codec_dai->component;
	struct pcm1789_private *priv = snd_soc_component_get_drvdata(component);
	int val = 0, ret;

	priv->rate = params_rate(params);

	switch (priv->format & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_RIGHT_J:
		switch (params_width(params)) {
		case 24:
			val = 2;
			break;
		case 16:
			val = 3;
			break;
		default:
			return -EINVAL;
		}
		break;
	case SND_SOC_DAIFMT_I2S:
		switch (params_width(params)) {
		case 16:
		case 24:
		case 32:
			val = 0;
			break;
		default:
			return -EINVAL;
		}
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		switch (params_width(params)) {
		case 16:
		case 24:
		case 32:
			val = 1;
			break;
		default:
			return -EINVAL;
		}
		break;
	default:
		dev_err(component->dev, "Invalid DAI format\n");
		return -EINVAL;
	}

	ret = regmap_update_bits(priv->regmap, PCM1789_FMT_CONTROL,
				 PCM1789_FMT_MASK, val);
	if (ret < 0)
		return ret;

	return 0;
}
开发者ID:the-snowwhite，项目名称:linux-socfpga，代码行数:57，代码来源:pcm1789.c


示例8: pcm179x_hw_params

static int pcm179x_hw_params(struct snd_pcm_substream *substream,
			     struct snd_pcm_hw_params *params,
			     struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct pcm179x_private *priv = snd_soc_codec_get_drvdata(codec);
	int val = 0, ret;

	priv->rate = params_rate(params);

	switch (priv->format & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_RIGHT_J:
		switch (params_width(params)) {
		case 24:
		case 32:
			val = 2;
			break;
		case 16:
			val = 0;
			break;
		default:
			return -EINVAL;
		}
		break;
	case SND_SOC_DAIFMT_I2S:
		switch (params_width(params)) {
		case 24:
		case 32:
			val = 5;
			break;
		case 16:
			val = 4;
			break;
		default:
			return -EINVAL;
		}
		break;
	default:
		dev_err(codec->dev, "Invalid DAI format\n");
		return -EINVAL;
	}

	val = val << PCM179X_FMT_SHIFT | PCM179X_ATLD_ENABLE;

	ret = regmap_update_bits(priv->regmap, PCM179X_FMT_CONTROL,
				 PCM179X_FMT_MASK | PCM179X_ATLD_ENABLE, val);
	if (ret < 0)
		return ret;

	return 0;
}
开发者ID:a2hojsjsjs，项目名称:linux，代码行数:51，代码来源:pcm179x.c


示例9: max98925_dai_hw_params

static int max98925_dai_hw_params(struct snd_pcm_substream *substream,
				   struct snd_pcm_hw_params *params,
				   struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct max98925_priv *max98925 = snd_soc_codec_get_drvdata(codec);

	switch (params_width(params)) {
	case 16:
		regmap_update_bits(max98925->regmap,
				MAX98925_FORMAT,
				M98925_DAI_CHANSZ_MASK, M98925_DAI_CHANSZ_16);
		max98925->ch_size = 16;
		break;
	case 24:
		regmap_update_bits(max98925->regmap,
				MAX98925_FORMAT,
				M98925_DAI_CHANSZ_MASK, M98925_DAI_CHANSZ_24);
		max98925->ch_size = 24;
		break;
	case 32:
		regmap_update_bits(max98925->regmap,
				MAX98925_FORMAT,
				M98925_DAI_CHANSZ_MASK, M98925_DAI_CHANSZ_32);
		max98925->ch_size = 32;
		break;
	default:
		pr_err("%s: format unsupported %d",
				__func__, params_format(params));
		return -EINVAL;
	}
	dev_dbg(codec->dev, "%s: format supported %d",
				__func__, params_format(params));
	return max98925_set_clock(max98925, params);
}
开发者ID:ReneNyffenegger，项目名称:linux，代码行数:35，代码来源:max98925.c


示例10: isabelle_hw_params

static int isabelle_hw_params(struct snd_pcm_substream *substream,
			      struct snd_pcm_hw_params *params,
			      struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	u16 aif = 0;
	unsigned int fs_val = 0;

	switch (params_rate(params)) {
	case 8000:
		fs_val = ISABELLE_FS_RATE_8;
		break;
	case 11025:
		fs_val = ISABELLE_FS_RATE_11;
		break;
	case 12000:
		fs_val = ISABELLE_FS_RATE_12;
		break;
	case 16000:
		fs_val = ISABELLE_FS_RATE_16;
		break;
	case 22050:
		fs_val = ISABELLE_FS_RATE_22;
		break;
	case 24000:
		fs_val = ISABELLE_FS_RATE_24;
		break;
	case 32000:
		fs_val = ISABELLE_FS_RATE_32;
		break;
	case 44100:
		fs_val = ISABELLE_FS_RATE_44;
		break;
	case 48000:
		fs_val = ISABELLE_FS_RATE_48;
		break;
	default:
		return -EINVAL;
	}

	snd_soc_update_bits(codec, ISABELLE_FS_RATE_CFG_REG,
			ISABELLE_FS_RATE_MASK, fs_val);

	/* bit size */
	switch (params_width(params)) {
	case 20:
		aif |= ISABELLE_AIF_LENGTH_20;
		break;
	case 32:
		aif |= ISABELLE_AIF_LENGTH_32;
		break;
	default:
		return -EINVAL;
	}

	snd_soc_update_bits(codec, ISABELLE_INTF_CFG_REG,
			ISABELLE_AIF_LENGTH_MASK, aif);

	return 0;
}
开发者ID:AshishNamdev，项目名称:linux，代码行数:60，代码来源:isabelle.c


示例11: adav80x_set_playback_pcm_format

static int adav80x_set_playback_pcm_format(struct snd_soc_codec *codec,
		struct snd_soc_dai *dai, struct snd_pcm_hw_params *params)
{
	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
	unsigned int val;

	if (adav80x->dai_fmt[dai->id] != SND_SOC_DAIFMT_RIGHT_J)
		return 0;

	switch (params_width(params)) {
	case 16:
		val = ADAV80X_PLAYBACK_MODE_RIGHT_J_16;
		break;
	case 18:
		val = ADAV80X_PLAYBACK_MODE_RIGHT_J_18;
		break;
	case 20:
		val = ADAV80X_PLAYBACK_MODE_RIGHT_J_20;
		break;
	case 24:
		val = ADAV80X_PLAYBACK_MODE_RIGHT_J_24;
		break;
	default:
		return -EINVAL;
	}

	regmap_update_bits(adav80x->regmap, adav80x_port_ctrl_regs[dai->id][1],
		ADAV80X_PLAYBACK_MODE_MASK, val);

	return 0;
}
开发者ID:3null，项目名称:linux，代码行数:31，代码来源:adav80x.c


示例12: adav80x_set_capture_pcm_format

static int adav80x_set_capture_pcm_format(struct snd_soc_codec *codec,
		struct snd_soc_dai *dai, struct snd_pcm_hw_params *params)
{
	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
	unsigned int val;

	switch (params_width(params)) {
	case 16:
		val = ADAV80X_CAPTURE_WORD_LEN16;
		break;
	case 18:
		val = ADAV80X_CAPTRUE_WORD_LEN18;
		break;
	case 20:
		val = ADAV80X_CAPTURE_WORD_LEN20;
		break;
	case 24:
		val = ADAV80X_CAPTURE_WORD_LEN24;
		break;
	default:
		return -EINVAL;
	}

	regmap_update_bits(adav80x->regmap, adav80x_port_ctrl_regs[dai->id][0],
		ADAV80X_CAPTURE_WORD_LEN_MASK, val);

	return 0;
}
开发者ID:3null，项目名称:linux，代码行数:28，代码来源:adav80x.c


示例13: s3c24xx_i2s_hw_params

static int s3c24xx_i2s_hw_params(struct snd_pcm_substream *substream,
                                 struct snd_pcm_hw_params *params,
                                 struct snd_soc_dai *dai)
{
    struct snd_dmaengine_dai_dma_data *dma_data;
    u32 iismod;

    pr_debug("Entered %s\n", __func__);

    dma_data = snd_soc_dai_get_dma_data(dai, substream);

    /* Working copies of register */
    iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
    pr_debug("hw_params r: IISMOD: %x\n", iismod);

    switch (params_width(params)) {
    case 8:
        iismod &= ~S3C2410_IISMOD_16BIT;
        dma_data->addr_width = 1;
        break;
    case 16:
        iismod |= S3C2410_IISMOD_16BIT;
        dma_data->addr_width = 2;
        break;
    default:
        return -EINVAL;
    }

    writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
    pr_debug("hw_params w: IISMOD: %x\n", iismod);
    return 0;
}
开发者ID:superna9999，项目名称:linux，代码行数:32，代码来源:s3c24xx-i2s.c


示例14: stm32_spdifrx_hw_params

static int stm32_spdifrx_hw_params(struct snd_pcm_substream *substream,
				   struct snd_pcm_hw_params *params,
				   struct snd_soc_dai *cpu_dai)
{
	struct stm32_spdifrx_data *spdifrx = snd_soc_dai_get_drvdata(cpu_dai);
	int data_size = params_width(params);
	int fmt;

	switch (data_size) {
	case 16:
		fmt = SPDIFRX_DRFMT_PACKED;
		spdifrx->dma_params.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
		break;
	case 32:
		fmt = SPDIFRX_DRFMT_LEFT;
		spdifrx->dma_params.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
		break;
	default:
		dev_err(&spdifrx->pdev->dev, "Unexpected data format\n");
		return -EINVAL;
	}

	snd_soc_dai_init_dma_data(cpu_dai, NULL, &spdifrx->dma_params);

	return regmap_update_bits(spdifrx->regmap, STM32_SPDIFRX_CR,
				  SPDIFRX_CR_DRFMT_MASK,
				  SPDIFRX_CR_DRFMTSET(fmt));
}
开发者ID:mdamt，项目名称:linux，代码行数:28，代码来源:stm32_spdifrx.c


示例15: s3c2412_i2s_hw_params

static int s3c2412_i2s_hw_params(struct snd_pcm_substream *substream,
				 struct snd_pcm_hw_params *params,
				 struct snd_soc_dai *cpu_dai)
{
	struct s3c_i2sv2_info *i2s = snd_soc_dai_get_drvdata(cpu_dai);
	struct s3c_dma_params *dma_data;
	u32 iismod;

	pr_debug("Entered %s\n", __func__);

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
		dma_data = i2s->dma_playback;
	else
		dma_data = i2s->dma_capture;

	snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);

	iismod = readl(i2s->regs + S3C2412_IISMOD);
	pr_debug("%s: r: IISMOD: %x\n", __func__, iismod);

	switch (params_width(params)) {
	case 8:
		iismod |= S3C2412_IISMOD_8BIT;
		break;
	case 16:
		iismod &= ~S3C2412_IISMOD_8BIT;
		break;
	}

	writel(iismod, i2s->regs + S3C2412_IISMOD);
	pr_debug("%s: w: IISMOD: %x\n", __func__, iismod);

	return 0;
}
开发者ID:MaxChina，项目名称:linux，代码行数:34，代码来源:s3c2412-i2s.c


示例16: ssm2602_hw_params

static int ssm2602_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params,
	struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
	int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
	unsigned int iface;

	if (srate < 0)
		return srate;

	regmap_write(ssm2602->regmap, SSM2602_SRATE, srate);

	/* bit size */
	switch (params_width(params)) {
	case 16:
		iface = 0x0;
		break;
	case 20:
		iface = 0x4;
		break;
	case 24:
		iface = 0x8;
		break;
	case 32:
		iface = 0xc;
		break;
	default:
		return -EINVAL;
	}
	regmap_update_bits(ssm2602->regmap, SSM2602_IFACE,
		IFACE_AUDIO_DATA_LEN, iface);
	return 0;
}
开发者ID:19Dan01，项目名称:linux，代码行数:35，代码来源:ssm2602.c


示例17: wm8750_pcm_hw_params

static int wm8750_pcm_hw_params(struct snd_pcm_substream *substream,
				struct snd_pcm_hw_params *params,
				struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec);
	u16 iface = snd_soc_read(codec, WM8750_IFACE) & 0x1f3;
	u16 srate = snd_soc_read(codec, WM8750_SRATE) & 0x1c0;
	int coeff = get_coeff(wm8750->sysclk, params_rate(params));

	/* bit size */
	switch (params_width(params)) {
	case 16:
		break;
	case 20:
		iface |= 0x0004;
		break;
	case 24:
		iface |= 0x0008;
		break;
	case 32:
		iface |= 0x000c;
		break;
	}

	/* set iface & srate */
	snd_soc_write(codec, WM8750_IFACE, iface);
	if (coeff >= 0)
		snd_soc_write(codec, WM8750_SRATE, srate |
			(coeff_div[coeff].sr << 1) | coeff_div[coeff].usb);

	return 0;
}
开发者ID:3null，项目名称:linux，代码行数:33，代码来源:wm8750.c


示例18: wm8711_hw_params

static int wm8711_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params,
	struct snd_soc_dai *dai)
{
	struct snd_soc_component *component = dai->component;
	struct wm8711_priv *wm8711 =  snd_soc_component_get_drvdata(component);
	u16 iface = snd_soc_component_read32(component, WM8711_IFACE) & 0xfff3;
	int i = get_coeff(wm8711->sysclk, params_rate(params));
	u16 srate = (coeff_div[i].sr << 2) |
		(coeff_div[i].bosr << 1) | coeff_div[i].usb;

	snd_soc_component_write(component, WM8711_SRATE, srate);

	/* bit size */
	switch (params_width(params)) {
	case 16:
		break;
	case 20:
		iface |= 0x0004;
		break;
	case 24:
		iface |= 0x0008;
		break;
	}

	snd_soc_component_write(component, WM8711_IFACE, iface);
	return 0;
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:28，代码来源:wm8711.c


示例19: wm8728_hw_params

static int wm8728_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params,
	struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	u16 dac = snd_soc_read(codec, WM8728_DACCTL);

	dac &= ~0x18;

	switch (params_width(params)) {
	case 16:
		break;
	case 20:
		dac |= 0x10;
		break;
	case 24:
		dac |= 0x08;
		break;
	default:
		return -EINVAL;
	}

	snd_soc_write(codec, WM8728_DACCTL, dac);

	return 0;
}
开发者ID:020gzh，项目名称:linux，代码行数:26，代码来源:wm8728.c


示例20: s3c2412_i2s_hw_params

static int s3c2412_i2s_hw_params(struct snd_pcm_substream *substream,
				 struct snd_pcm_hw_params *params,
				 struct snd_soc_dai *cpu_dai)
{
	struct s3c_i2sv2_info *i2s = snd_soc_dai_get_drvdata(cpu_dai);
	u32 iismod;

	pr_debug("Entered %s\n", __func__);

	iismod = readl(i2s->regs + S3C2412_IISMOD);
	pr_debug("%s: r: IISMOD: %x\n", __func__, iismod);

	switch (params_width(params)) {
	case 8:
		iismod |= S3C2412_IISMOD_8BIT;
		break;
	case 16:
		iismod &= ~S3C2412_IISMOD_8BIT;
		break;
	}

	writel(iismod, i2s->regs + S3C2412_IISMOD);
	pr_debug("%s: w: IISMOD: %x\n", __func__, iismod);

	return 0;
}
开发者ID:AshishNamdev，项目名称:linux，代码行数:26，代码来源:s3c2412-i2s.c



注：本文中的params_width函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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