ASoC: ak4642: Add enhanced sampling rate
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -101,6 +101,13 @@
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#define BCKO_MASK (1 << 3)
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#define BCKO_64 BCKO_MASK
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/* MD_CTL2 */
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#define FS0 (1 << 0)
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#define FS1 (1 << 1)
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#define FS2 (1 << 2)
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#define FS3 (1 << 5)
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#define FS_MASK (FS0 | FS1 | FS2 | FS3)
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struct snd_soc_codec_device soc_codec_dev_ak4642;
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/* codec private data */
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@ -196,14 +203,12 @@ static int ak4642_dai_startup(struct snd_pcm_substream *substream,
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*
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* PLL, Master Mode
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* Audio I/F Format :MSB justified (ADC & DAC)
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* Sampling Frequency: 44.1kHz
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* Digital Volume: −8dB
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* Digital Volume: -8dB
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* Bass Boost Level : Middle
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*
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* This operation came from example code of
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* "ASAHI KASEI AK4642" (japanese) manual p97.
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*/
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ak4642_write(codec, 0x05, 0x27);
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ak4642_write(codec, 0x0f, 0x09);
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ak4642_write(codec, 0x0e, 0x19);
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ak4642_write(codec, 0x09, 0x91);
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@ -219,7 +224,6 @@ static int ak4642_dai_startup(struct snd_pcm_substream *substream,
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*
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* PLL Master Mode
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* Audio I/F Format:MSB justified (ADC & DAC)
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* Sampling Frequency:44.1kHz
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* Pre MIC AMP:+20dB
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* MIC Power On
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* ALC setting:Refer to Table 35
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@ -228,7 +232,6 @@ static int ak4642_dai_startup(struct snd_pcm_substream *substream,
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* This operation came from example code of
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* "ASAHI KASEI AK4642" (japanese) manual p94.
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*/
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ak4642_write(codec, 0x05, 0x27);
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ak4642_write(codec, 0x02, 0x05);
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ak4642_write(codec, 0x06, 0x3c);
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ak4642_write(codec, 0x08, 0xe1);
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@ -321,11 +324,65 @@ static int ak4642_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
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return 0;
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}
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static int ak4642_dai_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_codec *codec = dai->codec;
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u8 rate;
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switch (params_rate(params)) {
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case 7350:
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rate = FS2;
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break;
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case 8000:
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rate = 0;
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break;
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case 11025:
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rate = FS2 | FS0;
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break;
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case 12000:
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rate = FS0;
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break;
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case 14700:
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rate = FS2 | FS1;
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break;
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case 16000:
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rate = FS1;
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break;
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case 22050:
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rate = FS2 | FS1 | FS0;
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break;
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case 24000:
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rate = FS1 | FS0;
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break;
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case 29400:
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rate = FS3 | FS2 | FS1;
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break;
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case 32000:
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rate = FS3 | FS1;
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break;
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case 44100:
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rate = FS3 | FS2 | FS1 | FS0;
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break;
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case 48000:
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rate = FS3 | FS1 | FS0;
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break;
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default:
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return -EINVAL;
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break;
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}
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snd_soc_update_bits(codec, MD_CTL2, FS_MASK, rate);
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return 0;
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}
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static struct snd_soc_dai_ops ak4642_dai_ops = {
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.startup = ak4642_dai_startup,
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.shutdown = ak4642_dai_shutdown,
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.set_sysclk = ak4642_dai_set_sysclk,
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.set_fmt = ak4642_dai_set_fmt,
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.hw_params = ak4642_dai_hw_params,
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};
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struct snd_soc_dai ak4642_dai = {
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@ -343,6 +400,7 @@ struct snd_soc_dai ak4642_dai = {
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.rates = SNDRV_PCM_RATE_8000_48000,
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.formats = SNDRV_PCM_FMTBIT_S16_LE },
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.ops = &ak4642_dai_ops,
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.symmetric_rates = 1,
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};
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EXPORT_SYMBOL_GPL(ak4642_dai);
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