diff options
Diffstat (limited to 'sound/soc/codecs/inno_rk3036.c')
| -rw-r--r-- | sound/soc/codecs/inno_rk3036.c | 490 |
1 files changed, 490 insertions, 0 deletions
diff --git a/sound/soc/codecs/inno_rk3036.c b/sound/soc/codecs/inno_rk3036.c new file mode 100644 index 000000000000..9b6e8840a1b5 --- /dev/null +++ b/sound/soc/codecs/inno_rk3036.c @@ -0,0 +1,490 @@ +/* + * Driver of Inno codec for rk3036 by Rockchip Inc. + * + * Author: Rockchip Inc. + * Author: Zheng ShunQian<zhengsq@rock-chips.com> + */ + +#include <sound/soc.h> +#include <sound/tlv.h> +#include <sound/soc-dapm.h> +#include <sound/soc-dai.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> + +#include <linux/platform_device.h> +#include <linux/of.h> +#include <linux/clk.h> +#include <linux/regmap.h> +#include <linux/device.h> +#include <linux/mfd/syscon.h> +#include <linux/module.h> +#include <linux/io.h> + +#include "inno_rk3036.h" + +struct rk3036_codec_priv { + void __iomem *base; + struct clk *pclk; + struct regmap *regmap; + struct device *dev; +}; + +static const DECLARE_TLV_DB_MINMAX(rk3036_codec_hp_tlv, -39, 0); + +static int rk3036_codec_antipop_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + uinfo->count = 2; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 1; + + return 0; +} + +static int rk3036_codec_antipop_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + int val, ret, regval; + + ret = snd_soc_component_read(component, INNO_R09, ®val); + if (ret) + return ret; + val = ((regval >> INNO_R09_HPL_ANITPOP_SHIFT) & + INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON; + ucontrol->value.integer.value[0] = val; + + val = ((regval >> INNO_R09_HPR_ANITPOP_SHIFT) & + INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON; + ucontrol->value.integer.value[1] = val; + + return 0; +} + +static int rk3036_codec_antipop_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + int val, ret, regmsk; + + val = (ucontrol->value.integer.value[0] ? + INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) << + INNO_R09_HPL_ANITPOP_SHIFT; + val |= (ucontrol->value.integer.value[1] ? + INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) << + INNO_R09_HPR_ANITPOP_SHIFT; + + regmsk = INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPL_ANITPOP_SHIFT | + INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPR_ANITPOP_SHIFT; + + ret = snd_soc_component_update_bits(component, INNO_R09, + regmsk, val); + if (ret < 0) + return ret; + + return 0; +} + +#define SOC_RK3036_CODEC_ANTIPOP_DECL(xname) \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ + .info = rk3036_codec_antipop_info, .get = rk3036_codec_antipop_get, \ + .put = rk3036_codec_antipop_put, } + +static const struct snd_kcontrol_new rk3036_codec_dapm_controls[] = { + SOC_DOUBLE_R_RANGE_TLV("Headphone Volume", INNO_R07, INNO_R08, + INNO_HP_GAIN_SHIFT, INNO_HP_GAIN_N39DB, + INNO_HP_GAIN_0DB, 0, rk3036_codec_hp_tlv), + SOC_DOUBLE("Zero Cross Switch", INNO_R06, INNO_R06_VOUTL_CZ_SHIFT, + INNO_R06_VOUTR_CZ_SHIFT, 1, 0), + SOC_DOUBLE("Headphone Switch", INNO_R09, INNO_R09_HPL_MUTE_SHIFT, + INNO_R09_HPR_MUTE_SHIFT, 1, 0), + SOC_RK3036_CODEC_ANTIPOP_DECL("Anti-pop Switch"), +}; + +static const struct snd_kcontrol_new rk3036_codec_hpl_mixer_controls[] = { + SOC_DAPM_SINGLE("DAC Left Out Switch", INNO_R09, + INNO_R09_DACL_SWITCH_SHIFT, 1, 0), +}; + +static const struct snd_kcontrol_new rk3036_codec_hpr_mixer_controls[] = { + SOC_DAPM_SINGLE("DAC Right Out Switch", INNO_R09, + INNO_R09_DACR_SWITCH_SHIFT, 1, 0), +}; + +static const struct snd_kcontrol_new rk3036_codec_hpl_switch_controls[] = { + SOC_DAPM_SINGLE("HP Left Out Switch", INNO_R05, + INNO_R05_HPL_WORK_SHIFT, 1, 0), +}; + +static const struct snd_kcontrol_new rk3036_codec_hpr_switch_controls[] = { + SOC_DAPM_SINGLE("HP Right Out Switch", INNO_R05, + INNO_R05_HPR_WORK_SHIFT, 1, 0), +}; + +static const struct snd_soc_dapm_widget rk3036_codec_dapm_widgets[] = { + SND_SOC_DAPM_SUPPLY_S("DAC PWR", 1, INNO_R06, + INNO_R06_DAC_EN_SHIFT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY_S("DACL VREF", 2, INNO_R04, + INNO_R04_DACL_VREF_SHIFT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY_S("DACR VREF", 2, INNO_R04, + INNO_R04_DACR_VREF_SHIFT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY_S("DACL HiLo VREF", 3, INNO_R06, + INNO_R06_DACL_HILO_VREF_SHIFT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY_S("DACR HiLo VREF", 3, INNO_R06, + INNO_R06_DACR_HILO_VREF_SHIFT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY_S("DACR CLK", 3, INNO_R04, + INNO_R04_DACR_CLK_SHIFT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY_S("DACL CLK", 3, INNO_R04, + INNO_R04_DACL_CLK_SHIFT, 0, NULL, 0), + + SND_SOC_DAPM_DAC("DACL", "Left Playback", INNO_R04, + INNO_R04_DACL_SW_SHIFT, 0), + SND_SOC_DAPM_DAC("DACR", "Right Playback", INNO_R04, + INNO_R04_DACR_SW_SHIFT, 0), + + SND_SOC_DAPM_MIXER("Left Headphone Mixer", SND_SOC_NOPM, 0, 0, + rk3036_codec_hpl_mixer_controls, + ARRAY_SIZE(rk3036_codec_hpl_mixer_controls)), + SND_SOC_DAPM_MIXER("Right Headphone Mixer", SND_SOC_NOPM, 0, 0, + rk3036_codec_hpr_mixer_controls, + ARRAY_SIZE(rk3036_codec_hpr_mixer_controls)), + + SND_SOC_DAPM_PGA("HP Left Out", INNO_R05, + INNO_R05_HPL_EN_SHIFT, 0, NULL, 0), + SND_SOC_DAPM_PGA("HP Right Out", INNO_R05, + INNO_R05_HPR_EN_SHIFT, 0, NULL, 0), + + SND_SOC_DAPM_MIXER("HP Left Switch", SND_SOC_NOPM, 0, 0, + rk3036_codec_hpl_switch_controls, + ARRAY_SIZE(rk3036_codec_hpl_switch_controls)), + SND_SOC_DAPM_MIXER("HP Right Switch", SND_SOC_NOPM, 0, 0, + rk3036_codec_hpr_switch_controls, + ARRAY_SIZE(rk3036_codec_hpr_switch_controls)), + + SND_SOC_DAPM_OUTPUT("HPL"), + SND_SOC_DAPM_OUTPUT("HPR"), +}; + +static const struct snd_soc_dapm_route rk3036_codec_dapm_routes[] = { + {"DACL VREF", NULL, "DAC PWR"}, + {"DACR VREF", NULL, "DAC PWR"}, + {"DACL HiLo VREF", NULL, "DAC PWR"}, + {"DACR HiLo VREF", NULL, "DAC PWR"}, + {"DACL CLK", NULL, "DAC PWR"}, + {"DACR CLK", NULL, "DAC PWR"}, + + {"DACL", NULL, "DACL VREF"}, + {"DACL", NULL, "DACL HiLo VREF"}, + {"DACL", NULL, "DACL CLK"}, + {"DACR", NULL, "DACR VREF"}, + {"DACR", NULL, "DACR HiLo VREF"}, + {"DACR", NULL, "DACR CLK"}, + + {"Left Headphone Mixer", "DAC Left Out Switch", "DACL"}, + {"Right Headphone Mixer", "DAC Right Out Switch", "DACR"}, + {"HP Left Out", NULL, "Left Headphone Mixer"}, + {"HP Right Out", NULL, "Right Headphone Mixer"}, + + {"HP Left Switch", "HP Left Out Switch", "HP Left Out"}, + {"HP Right Switch", "HP Right Out Switch", "HP Right Out"}, + + {"HPL", NULL, "HP Left Switch"}, + {"HPR", NULL, "HP Right Switch"}, +}; + +static int rk3036_codec_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_codec *codec = dai->codec; + unsigned int reg01_val = 0, reg02_val = 0, reg03_val = 0; + + dev_dbg(codec->dev, "rk3036_codec dai set fmt : %08x\n", fmt); + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + reg01_val |= INNO_R01_PINDIR_IN_SLAVE | + INNO_R01_I2SMODE_SLAVE; + break; + case SND_SOC_DAIFMT_CBM_CFM: + reg01_val |= INNO_R01_PINDIR_OUT_MASTER | + INNO_R01_I2SMODE_MASTER; + break; + default: + dev_err(codec->dev, "invalid fmt\n"); + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + reg02_val |= INNO_R02_DACM_PCM; + break; + case SND_SOC_DAIFMT_I2S: + reg02_val |= INNO_R02_DACM_I2S; + break; + case SND_SOC_DAIFMT_RIGHT_J: + reg02_val |= INNO_R02_DACM_RJM; + break; + case SND_SOC_DAIFMT_LEFT_J: + reg02_val |= INNO_R02_DACM_LJM; + break; + default: + dev_err(codec->dev, "set dai format failed\n"); + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + reg02_val |= INNO_R02_LRCP_NORMAL; + reg03_val |= INNO_R03_BCP_NORMAL; + break; + case SND_SOC_DAIFMT_IB_IF: + reg02_val |= INNO_R02_LRCP_REVERSAL; + reg03_val |= INNO_R03_BCP_REVERSAL; + break; + case SND_SOC_DAIFMT_IB_NF: + reg02_val |= INNO_R02_LRCP_REVERSAL; + reg03_val |= INNO_R03_BCP_NORMAL; + break; + case SND_SOC_DAIFMT_NB_IF: + reg02_val |= INNO_R02_LRCP_NORMAL; + reg03_val |= INNO_R03_BCP_REVERSAL; + break; + default: + dev_err(codec->dev, "set dai format failed\n"); + return -EINVAL; + } + + snd_soc_update_bits(codec, INNO_R01, INNO_R01_I2SMODE_MSK | + INNO_R01_PINDIR_MSK, reg01_val); + snd_soc_update_bits(codec, INNO_R02, INNO_R02_LRCP_MSK | + INNO_R02_DACM_MSK, reg02_val); + snd_soc_update_bits(codec, INNO_R03, INNO_R03_BCP_MSK, reg03_val); + + return 0; +} + +static int rk3036_codec_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params, + struct snd_soc_dai *dai) +{ + struct snd_soc_codec *codec = dai->codec; + unsigned int reg02_val = 0, reg03_val = 0; + + switch (params_format(hw_params)) { + case SNDRV_PCM_FORMAT_S16_LE: + reg02_val |= INNO_R02_VWL_16BIT; + break; + case SNDRV_PCM_FORMAT_S20_3LE: + reg02_val |= INNO_R02_VWL_20BIT; + break; + case SNDRV_PCM_FORMAT_S24_LE: + reg02_val |= INNO_R02_VWL_24BIT; + break; + case SNDRV_PCM_FORMAT_S32_LE: + reg02_val |= INNO_R02_VWL_32BIT; + break; + default: + return -EINVAL; + } + + reg02_val |= INNO_R02_LRCP_NORMAL; + reg03_val |= INNO_R03_FWL_32BIT | INNO_R03_DACR_WORK; + + snd_soc_update_bits(codec, INNO_R02, INNO_R02_LRCP_MSK | + INNO_R02_VWL_MSK, reg02_val); + snd_soc_update_bits(codec, INNO_R03, INNO_R03_DACR_MSK | + INNO_R03_FWL_MSK, reg03_val); + return 0; +} + +#define RK3036_CODEC_RATES (SNDRV_PCM_RATE_8000 | \ + SNDRV_PCM_RATE_16000 | \ + SNDRV_PCM_RATE_32000 | \ + SNDRV_PCM_RATE_44100 | \ + SNDRV_PCM_RATE_48000 | \ + SNDRV_PCM_RATE_96000) + +#define RK3036_CODEC_FMTS (SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S20_3LE | \ + SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE) + +static struct snd_soc_dai_ops rk3036_codec_dai_ops = { + .set_fmt = rk3036_codec_dai_set_fmt, + .hw_params = rk3036_codec_dai_hw_params, +}; + +static struct snd_soc_dai_driver rk3036_codec_dai_driver[] = { + { + .name = "rk3036-codec-dai", + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 2, + .rates = RK3036_CODEC_RATES, + .formats = RK3036_CODEC_FMTS, + }, + .ops = &rk3036_codec_dai_ops, + .symmetric_rates = 1, + }, +}; + +static void rk3036_codec_reset(struct snd_soc_codec *codec) +{ + snd_soc_write(codec, INNO_R00, + INNO_R00_CSR_RESET | INNO_R00_CDCR_RESET); + snd_soc_write(codec, INNO_R00, + INNO_R00_CSR_WORK | INNO_R00_CDCR_WORK); +} + +static int rk3036_codec_probe(struct snd_soc_codec *codec) +{ + rk3036_codec_reset(codec); + return 0; +} + +static int rk3036_codec_remove(struct snd_soc_codec *codec) +{ + rk3036_codec_reset(codec); + return 0; +} + +static int rk3036_codec_set_bias_level(struct snd_soc_codec *codec, + enum snd_soc_bias_level level) +{ + switch (level) { + case SND_SOC_BIAS_STANDBY: + /* set a big current for capacitor charging. */ + snd_soc_write(codec, INNO_R10, INNO_R10_MAX_CUR); + /* start precharge */ + snd_soc_write(codec, INNO_R06, INNO_R06_DAC_PRECHARGE); + + break; + + case SND_SOC_BIAS_OFF: + /* set a big current for capacitor discharging. */ + snd_soc_write(codec, INNO_R10, INNO_R10_MAX_CUR); + /* start discharge. */ + snd_soc_write(codec, INNO_R06, INNO_R06_DAC_DISCHARGE); + + break; + default: + break; + } + + return 0; +} + +static struct snd_soc_codec_driver rk3036_codec_driver = { + .probe = rk3036_codec_probe, + .remove = rk3036_codec_remove, + .set_bias_level = rk3036_codec_set_bias_level, + .controls = rk3036_codec_dapm_controls, + .num_controls = ARRAY_SIZE(rk3036_codec_dapm_controls), + .dapm_routes = rk3036_codec_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(rk3036_codec_dapm_routes), + .dapm_widgets = rk3036_codec_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(rk3036_codec_dapm_widgets), +}; + +static const struct regmap_config rk3036_codec_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, +}; + +#define GRF_SOC_CON0 0x00140 +#define GRF_ACODEC_SEL (BIT(10) | BIT(16 + 10)) + +static int rk3036_codec_platform_probe(struct platform_device *pdev) +{ + struct rk3036_codec_priv *priv; + struct device_node *of_node = pdev->dev.of_node; + struct resource *res; + void __iomem *base; + struct regmap *grf; + int ret; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(base)) + return PTR_ERR(base); + + priv->base = base; + priv->regmap = devm_regmap_init_mmio(&pdev->dev, priv->base, + &rk3036_codec_regmap_config); + if (IS_ERR(priv->regmap)) { + dev_err(&pdev->dev, "init regmap failed\n"); + return PTR_ERR(priv->regmap); + } + + grf = syscon_regmap_lookup_by_phandle(of_node, "rockchip,grf"); + if (IS_ERR(grf)) { + dev_err(&pdev->dev, "needs 'rockchip,grf' property\n"); + return PTR_ERR(grf); + } + ret = regmap_write(grf, GRF_SOC_CON0, GRF_ACODEC_SEL); + if (ret) { + dev_err(&pdev->dev, "Could not write to GRF: %d\n", ret); + return ret; + } + + priv->pclk = devm_clk_get(&pdev->dev, "acodec_pclk"); + if (IS_ERR(priv->pclk)) + return PTR_ERR(priv->pclk); + + ret = clk_prepare_enable(priv->pclk); + if (ret < 0) { + dev_err(&pdev->dev, "failed to enable clk\n"); + return ret; + } + + priv->dev = &pdev->dev; + dev_set_drvdata(&pdev->dev, priv); + + ret = snd_soc_register_codec(&pdev->dev, &rk3036_codec_driver, + rk3036_codec_dai_driver, + ARRAY_SIZE(rk3036_codec_dai_driver)); + if (ret) { + clk_disable_unprepare(priv->pclk); + dev_set_drvdata(&pdev->dev, NULL); + } + + return ret; +} + +static int rk3036_codec_platform_remove(struct platform_device *pdev) +{ + struct rk3036_codec_priv *priv = dev_get_drvdata(&pdev->dev); + + snd_soc_unregister_codec(&pdev->dev); + clk_disable_unprepare(priv->pclk); + + return 0; +} + +static const struct of_device_id rk3036_codec_of_match[] = { + { .compatible = "rockchip,rk3036-codec", }, + {} +}; +MODULE_DEVICE_TABLE(of, rk3036_codec_of_match); + +static struct platform_driver rk3036_codec_platform_driver = { + .driver = { + .name = "rk3036-codec-platform", + .of_match_table = of_match_ptr(rk3036_codec_of_match), + }, + .probe = rk3036_codec_platform_probe, + .remove = rk3036_codec_platform_remove, +}; + +module_platform_driver(rk3036_codec_platform_driver); + +MODULE_AUTHOR("Rockchip Inc."); +MODULE_DESCRIPTION("Rockchip rk3036 codec driver"); +MODULE_LICENSE("GPL"); |