Hello everyone,
On 17/01/2017 15:02, Mylène Josserand wrote:
Add the sun8i audio codec which handles the digital register of A33 codec. The driver handles only the basic playback from the DAC to headphones. All other features (microphone, capture, etc) will be added later.
Signed-off-by: Mylène Josserand mylene.josserand@free-electrons.com
[...]
+static int sun8i_codec_get_hw_rate(struct snd_pcm_hw_params *params) +{
- unsigned int rate = params_rate(params);
- switch (rate) {
- case 8000:
- case 7350:
return 0x0;- case 11025:
return 0x1;- case 12000:
return 0x2;- case 16000:
return 0x3;- case 22050:
return 0x4;- case 24000:
return 0x5;- case 32000:
return 0x6;- case 44100:
return 0x7;- case 48000:
return 0x8;- case 96000:
return 0x9;- case 192000:
return 0xa;- default:
return -EINVAL;- }
+}
+static u32 sun8i_codec_get_mod_freq(struct snd_pcm_hw_params *params) +{
- unsigned int rate = params_rate(params);
- switch (rate) {
- case 176400:
- case 88200:
- case 44100:
- case 22050:
- case 11025:
return 22579200;- case 192000:
- case 128000:
- case 96000:
- case 64000:
- case 48000:
- case 32000:
- case 24000:
- case 16000:
- case 12000:
- case 8000:
return 24576000;- default:
return 0;- }
+}
This function is not used anymore, I will remove it in v3 (once I will get some reviews).
+static int sun8i_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{
- struct sun8i_codec *scodec = snd_soc_codec_get_drvdata(dai->codec);
- u32 value;
- /* clock masters */
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBS_CFS: /* DAI Slave */
value = 0x0; /* Codec Master */break;- case SND_SOC_DAIFMT_CBM_CFM: /* DAI Master */
value = 0x1; /* Codec Slave */break;- default:
return -EINVAL;- }
- regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
BIT(SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD),value << SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD);- /* clock inversion */
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_NF: /* Normal */
value = 0x0;break;- case SND_SOC_DAIFMT_IB_IF: /* Inversion */
value = 0x1;break;- default:
return -EINVAL;- }
- regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
BIT(SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV),value << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV);- regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
BIT(SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV),value << SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV);- /* DAI format */
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_I2S:
value = 0x0;break;- case SND_SOC_DAIFMT_LEFT_J:
value = 0x1;break;- case SND_SOC_DAIFMT_RIGHT_J:
value = 0x2;break;- case SND_SOC_DAIFMT_DSP_A:
- case SND_SOC_DAIFMT_DSP_B:
value = 0x3;break;- default:
return -EINVAL;- }
- regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
BIT(SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT),value << SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT);- return 0;
+}
+static int sun8i_codec_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,struct snd_soc_dai *dai)+{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
Same things for these variables.
- struct sun8i_codec *scodec = snd_soc_codec_get_drvdata(dai->codec);
- u32 clk_freq;
- int sample_rate, err;
ditto for "clk_freq" and "err" ones.
Sorry about that.
Best regards,