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f0488349c1
The endianness flag is used on the CODEC side to specify an ambivalence to endian, typically because it is lost over the hardware link. This device receives audio over an I2S DAI and as such should have endianness applied. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20220504170905.332415-22-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
348 lines
8.1 KiB
C
348 lines
8.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// PCM3060 codec driver
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//
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// Copyright (C) 2018 Kirill Marinushkin <kmarinushkin@birdec.com>
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#include <linux/module.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/tlv.h>
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#include "pcm3060.h"
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/* dai */
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static int pcm3060_set_sysclk(struct snd_soc_dai *dai, int clk_id,
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unsigned int freq, int dir)
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{
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struct snd_soc_component *comp = dai->component;
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struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
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unsigned int reg;
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unsigned int val;
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if (dir != SND_SOC_CLOCK_IN) {
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dev_err(comp->dev, "unsupported sysclock dir: %d\n", dir);
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return -EINVAL;
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}
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switch (clk_id) {
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case PCM3060_CLK_DEF:
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val = 0;
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break;
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case PCM3060_CLK1:
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val = (dai->id == PCM3060_DAI_ID_DAC ? PCM3060_REG_CSEL : 0);
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break;
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case PCM3060_CLK2:
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val = (dai->id == PCM3060_DAI_ID_DAC ? 0 : PCM3060_REG_CSEL);
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break;
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default:
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dev_err(comp->dev, "unsupported sysclock id: %d\n", clk_id);
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return -EINVAL;
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}
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if (dai->id == PCM3060_DAI_ID_DAC)
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reg = PCM3060_REG67;
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else
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reg = PCM3060_REG72;
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regmap_update_bits(priv->regmap, reg, PCM3060_REG_CSEL, val);
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priv->dai[dai->id].sclk_freq = freq;
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return 0;
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}
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static int pcm3060_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
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{
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struct snd_soc_component *comp = dai->component;
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struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
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unsigned int reg;
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unsigned int val;
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if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) {
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dev_err(comp->dev, "unsupported DAI polarity: 0x%x\n", fmt);
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return -EINVAL;
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}
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switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
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case SND_SOC_DAIFMT_CBP_CFP:
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priv->dai[dai->id].is_provider = true;
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break;
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case SND_SOC_DAIFMT_CBC_CFC:
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priv->dai[dai->id].is_provider = false;
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break;
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default:
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dev_err(comp->dev, "unsupported DAI mode: 0x%x\n", fmt);
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return -EINVAL;
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}
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switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
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case SND_SOC_DAIFMT_I2S:
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val = PCM3060_REG_FMT_I2S;
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break;
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case SND_SOC_DAIFMT_RIGHT_J:
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val = PCM3060_REG_FMT_RJ;
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break;
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case SND_SOC_DAIFMT_LEFT_J:
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val = PCM3060_REG_FMT_LJ;
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break;
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default:
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dev_err(comp->dev, "unsupported DAI format: 0x%x\n", fmt);
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return -EINVAL;
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}
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if (dai->id == PCM3060_DAI_ID_DAC)
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reg = PCM3060_REG67;
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else
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reg = PCM3060_REG72;
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regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_FMT, val);
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return 0;
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}
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static int pcm3060_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_component *comp = dai->component;
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struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
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unsigned int rate;
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unsigned int ratio;
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unsigned int reg;
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unsigned int val;
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if (!priv->dai[dai->id].is_provider) {
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val = PCM3060_REG_MS_S;
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goto val_ready;
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}
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rate = params_rate(params);
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if (!rate) {
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dev_err(comp->dev, "rate is not configured\n");
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return -EINVAL;
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}
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ratio = priv->dai[dai->id].sclk_freq / rate;
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switch (ratio) {
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case 768:
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val = PCM3060_REG_MS_M768;
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break;
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case 512:
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val = PCM3060_REG_MS_M512;
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break;
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case 384:
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val = PCM3060_REG_MS_M384;
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break;
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case 256:
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val = PCM3060_REG_MS_M256;
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break;
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case 192:
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val = PCM3060_REG_MS_M192;
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break;
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case 128:
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val = PCM3060_REG_MS_M128;
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break;
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default:
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dev_err(comp->dev, "unsupported ratio: %d\n", ratio);
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return -EINVAL;
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}
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val_ready:
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if (dai->id == PCM3060_DAI_ID_DAC)
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reg = PCM3060_REG67;
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else
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reg = PCM3060_REG72;
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regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_MS, val);
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return 0;
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}
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static const struct snd_soc_dai_ops pcm3060_dai_ops = {
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.set_sysclk = pcm3060_set_sysclk,
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.set_fmt = pcm3060_set_fmt,
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.hw_params = pcm3060_hw_params,
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};
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#define PCM3060_DAI_RATES_ADC (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 | \
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SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \
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SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
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#define PCM3060_DAI_RATES_DAC (PCM3060_DAI_RATES_ADC | \
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SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)
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static struct snd_soc_dai_driver pcm3060_dai[] = {
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{
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.name = "pcm3060-dac",
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.id = PCM3060_DAI_ID_DAC,
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.playback = {
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.stream_name = "Playback",
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.channels_min = 2,
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.channels_max = 2,
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.rates = PCM3060_DAI_RATES_DAC,
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.formats = SNDRV_PCM_FMTBIT_S24_LE,
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},
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.ops = &pcm3060_dai_ops,
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},
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{
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.name = "pcm3060-adc",
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.id = PCM3060_DAI_ID_ADC,
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.capture = {
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.stream_name = "Capture",
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.channels_min = 2,
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.channels_max = 2,
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.rates = PCM3060_DAI_RATES_ADC,
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.formats = SNDRV_PCM_FMTBIT_S24_LE,
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},
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.ops = &pcm3060_dai_ops,
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},
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};
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/* dapm */
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static DECLARE_TLV_DB_SCALE(pcm3060_dapm_tlv, -10050, 50, 1);
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static const struct snd_kcontrol_new pcm3060_dapm_controls[] = {
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SOC_DOUBLE_R_RANGE_TLV("Master Playback Volume",
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PCM3060_REG65, PCM3060_REG66, 0,
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PCM3060_REG_AT2_MIN, PCM3060_REG_AT2_MAX,
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0, pcm3060_dapm_tlv),
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SOC_DOUBLE("Master Playback Switch", PCM3060_REG68,
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PCM3060_REG_SHIFT_MUT21, PCM3060_REG_SHIFT_MUT22, 1, 1),
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SOC_DOUBLE_R_RANGE_TLV("Master Capture Volume",
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PCM3060_REG70, PCM3060_REG71, 0,
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PCM3060_REG_AT1_MIN, PCM3060_REG_AT1_MAX,
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0, pcm3060_dapm_tlv),
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SOC_DOUBLE("Master Capture Switch", PCM3060_REG73,
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PCM3060_REG_SHIFT_MUT11, PCM3060_REG_SHIFT_MUT12, 1, 1),
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};
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static const struct snd_soc_dapm_widget pcm3060_dapm_widgets[] = {
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SND_SOC_DAPM_DAC("DAC", "Playback", PCM3060_REG64,
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PCM3060_REG_SHIFT_DAPSV, 1),
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SND_SOC_DAPM_OUTPUT("OUTL"),
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SND_SOC_DAPM_OUTPUT("OUTR"),
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SND_SOC_DAPM_INPUT("INL"),
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SND_SOC_DAPM_INPUT("INR"),
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SND_SOC_DAPM_ADC("ADC", "Capture", PCM3060_REG64,
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PCM3060_REG_SHIFT_ADPSV, 1),
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};
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static const struct snd_soc_dapm_route pcm3060_dapm_map[] = {
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{ "OUTL", NULL, "DAC" },
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{ "OUTR", NULL, "DAC" },
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{ "ADC", NULL, "INL" },
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{ "ADC", NULL, "INR" },
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};
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/* soc component */
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static const struct snd_soc_component_driver pcm3060_soc_comp_driver = {
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.controls = pcm3060_dapm_controls,
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.num_controls = ARRAY_SIZE(pcm3060_dapm_controls),
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.dapm_widgets = pcm3060_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(pcm3060_dapm_widgets),
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.dapm_routes = pcm3060_dapm_map,
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.num_dapm_routes = ARRAY_SIZE(pcm3060_dapm_map),
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.endianness = 1,
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};
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/* regmap */
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static bool pcm3060_reg_writeable(struct device *dev, unsigned int reg)
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{
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return (reg >= PCM3060_REG64);
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}
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static bool pcm3060_reg_readable(struct device *dev, unsigned int reg)
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{
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return (reg >= PCM3060_REG64);
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}
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static bool pcm3060_reg_volatile(struct device *dev, unsigned int reg)
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{
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/* PCM3060_REG64 is volatile */
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return (reg == PCM3060_REG64);
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}
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static const struct reg_default pcm3060_reg_defaults[] = {
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{ PCM3060_REG64, 0xF0 },
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{ PCM3060_REG65, 0xFF },
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{ PCM3060_REG66, 0xFF },
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{ PCM3060_REG67, 0x00 },
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{ PCM3060_REG68, 0x00 },
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{ PCM3060_REG69, 0x00 },
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{ PCM3060_REG70, 0xD7 },
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{ PCM3060_REG71, 0xD7 },
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{ PCM3060_REG72, 0x00 },
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{ PCM3060_REG73, 0x00 },
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};
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const struct regmap_config pcm3060_regmap = {
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.reg_bits = 8,
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.val_bits = 8,
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.writeable_reg = pcm3060_reg_writeable,
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.readable_reg = pcm3060_reg_readable,
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.volatile_reg = pcm3060_reg_volatile,
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.max_register = PCM3060_REG73,
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.reg_defaults = pcm3060_reg_defaults,
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.num_reg_defaults = ARRAY_SIZE(pcm3060_reg_defaults),
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.cache_type = REGCACHE_RBTREE,
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};
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EXPORT_SYMBOL(pcm3060_regmap);
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/* device */
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static void pcm3060_parse_dt(const struct device_node *np,
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struct pcm3060_priv *priv)
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{
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priv->out_se = of_property_read_bool(np, "ti,out-single-ended");
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}
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int pcm3060_probe(struct device *dev)
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{
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int rc;
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struct pcm3060_priv *priv = dev_get_drvdata(dev);
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/* soft reset */
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rc = regmap_update_bits(priv->regmap, PCM3060_REG64,
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PCM3060_REG_MRST, 0);
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if (rc) {
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dev_err(dev, "failed to reset component, rc=%d\n", rc);
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return rc;
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}
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if (dev->of_node)
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pcm3060_parse_dt(dev->of_node, priv);
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if (priv->out_se)
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regmap_update_bits(priv->regmap, PCM3060_REG64,
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PCM3060_REG_SE, PCM3060_REG_SE);
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rc = devm_snd_soc_register_component(dev, &pcm3060_soc_comp_driver,
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pcm3060_dai,
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ARRAY_SIZE(pcm3060_dai));
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if (rc) {
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dev_err(dev, "failed to register component, rc=%d\n", rc);
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return rc;
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}
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return 0;
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}
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EXPORT_SYMBOL(pcm3060_probe);
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MODULE_DESCRIPTION("PCM3060 codec driver");
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MODULE_AUTHOR("Kirill Marinushkin <kmarinushkin@birdec.com>");
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MODULE_LICENSE("GPL v2");
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