[PATCH 3/3] ASoC: codec: Add driver for JZ4760 internal codec

From: Christophe Branchereau cbranchereau@gmail.com

Add support for the internal codec found in the JZ4760 SoC from Ingenic.

Signed-off-by: Christophe Branchereau cbranchereau@gmail.com Signed-off-by: Paul Cercueil paul@crapouillou.net --- sound/soc/codecs/Kconfig | 13 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/jz4760.c | 889 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 904 insertions(+) create mode 100644 sound/soc/codecs/jz4760.c

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 7c66fda7fa2b..7f35dcfc867a 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -104,6 +104,7 @@ config SND_SOC_ALL_CODECS imply SND_SOC_ISABELLE imply SND_SOC_JZ4740_CODEC imply SND_SOC_JZ4725B_CODEC + imply SND_SOC_JZ4760_CODEC imply SND_SOC_JZ4770_CODEC imply SND_SOC_LM4857 imply SND_SOC_LM49453 @@ -735,6 +736,18 @@ config SND_SOC_JZ4725B_CODEC This driver can also be built as a module. If so, the module will be called snd-soc-jz4725b-codec.

+config SND_SOC_JZ4760_CODEC + depends on MACH_INGENIC || COMPILE_TEST + depends on OF + select REGMAP + tristate "Ingenic JZ4760 internal CODEC" + help + Enable support for the internal CODEC found in the JZ4760 SoC + from Ingenic. + + This driver can also be built as a module. If so, the module + will be called snd-soc-jz4760-codec. + config SND_SOC_JZ4770_CODEC depends on MACH_INGENIC || COMPILE_TEST depends on OF diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index d277f0366e09..17e7c15b0569 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -101,6 +101,7 @@ snd-soc-inno-rk3036-objs := inno_rk3036.o snd-soc-isabelle-objs := isabelle.o snd-soc-jz4740-codec-objs := jz4740.o snd-soc-jz4725b-codec-objs := jz4725b.o +snd-soc-jz4760-codec-objs := jz4760.o snd-soc-jz4770-codec-objs := jz4770.o snd-soc-l3-objs := l3.o snd-soc-lm4857-objs := lm4857.o @@ -418,6 +419,7 @@ obj-$(CONFIG_SND_SOC_INNO_RK3036) += snd-soc-inno-rk3036.o obj-$(CONFIG_SND_SOC_ISABELLE) += snd-soc-isabelle.o obj-$(CONFIG_SND_SOC_JZ4740_CODEC) += snd-soc-jz4740-codec.o obj-$(CONFIG_SND_SOC_JZ4725B_CODEC) += snd-soc-jz4725b-codec.o +obj-$(CONFIG_SND_SOC_JZ4760_CODEC) += snd-soc-jz4760-codec.o obj-$(CONFIG_SND_SOC_JZ4770_CODEC) += snd-soc-jz4770-codec.o obj-$(CONFIG_SND_SOC_L3) += snd-soc-l3.o obj-$(CONFIG_SND_SOC_LM4857) += snd-soc-lm4857.o diff --git a/sound/soc/codecs/jz4760.c b/sound/soc/codecs/jz4760.c new file mode 100644 index 000000000000..e8f28ccc145a --- /dev/null +++ b/sound/soc/codecs/jz4760.c @@ -0,0 +1,889 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Ingenic JZ4760 CODEC driver +// +// Copyright (C) 2021, Christophe Branchereau cbranchereau@gmail.com +// Copyright (C) 2021, Paul Cercueil paul@crapouillou.net + +#include <linux/bitfield.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/iopoll.h> +#include <linux/module.h> +#include <linux/regmap.h> +#include <linux/time64.h> + +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> +#include <sound/soc-dapm.h> +#include <sound/tlv.h> + +#define ICDC_RGADW_OFFSET 0x00 +#define ICDC_RGDATA_OFFSET 0x04 + +/* ICDC internal register access control register(RGADW) */ +#define ICDC_RGADW_RGWR BIT(16) +#define ICDC_RGADW_RGADDR_MASK GENMASK(14, 8) +#define ICDC_RGADW_RGDIN_MASK GENMASK(7, 0) + +/* ICDC internal register data output register (RGDATA)*/ +#define ICDC_RGDATA_IRQ BIT(8) +#define ICDC_RGDATA_RGDOUT_MASK GENMASK(7, 0) + +/* Internal register space, accessed through regmap */ +enum { + JZ4760_CODEC_REG_SR, + JZ4760_CODEC_REG_AICR, + JZ4760_CODEC_REG_CR1, + JZ4760_CODEC_REG_CR2, + JZ4760_CODEC_REG_CR3, + JZ4760_CODEC_REG_CR4, + JZ4760_CODEC_REG_CCR1, + JZ4760_CODEC_REG_CCR2, + JZ4760_CODEC_REG_PMR1, + JZ4760_CODEC_REG_PMR2, + JZ4760_CODEC_REG_ICR, + JZ4760_CODEC_REG_IFR, + JZ4760_CODEC_REG_GCR1, + JZ4760_CODEC_REG_GCR2, + JZ4760_CODEC_REG_GCR3, + JZ4760_CODEC_REG_GCR4, + JZ4760_CODEC_REG_GCR5, + JZ4760_CODEC_REG_GCR6, + JZ4760_CODEC_REG_GCR7, + JZ4760_CODEC_REG_GCR8, + JZ4760_CODEC_REG_GCR9, + JZ4760_CODEC_REG_AGC1, + JZ4760_CODEC_REG_AGC2, + JZ4760_CODEC_REG_AGC3, + JZ4760_CODEC_REG_AGC4, + JZ4760_CODEC_REG_AGC5, + JZ4760_CODEC_REG_MIX1, + JZ4760_CODEC_REG_MIX2, +}; + +#define REG_AICR_DAC_ADWL_MASK GENMASK(7, 6) +#define REG_AICR_DAC_SERIAL BIT(3) +#define REG_AICR_DAC_I2S BIT(1) + +#define REG_AICR_ADC_ADWL_MASK GENMASK(5, 4) + +#define REG_AICR_ADC_SERIAL BIT(2) +#define REG_AICR_ADC_I2S BIT(0) + +#define REG_CR1_HP_LOAD BIT(7) +#define REG_CR1_HP_MUTE BIT(5) +#define REG_CR1_LO_MUTE_OFFSET 4 +#define REG_CR1_BTL_MUTE_OFFSET 3 +#define REG_CR1_OUTSEL_OFFSET 0 +#define REG_CR1_OUTSEL_MASK GENMASK(1, REG_CR1_OUTSEL_OFFSET) + +#define REG_CR2_DAC_MONO BIT(7) +#define REG_CR2_DAC_MUTE BIT(5) +#define REG_CR2_DAC_NOMAD BIT(1) +#define REG_CR2_DAC_RIGHT_ONLY BIT(0) + +#define REG_CR3_ADC_INSEL_OFFSET 2 +#define REG_CR3_ADC_INSEL_MASK GENMASK(3, REG_CR3_ADC_INSEL_OFFSET) +#define REG_CR3_MICSTEREO_OFFSET 1 +#define REG_CR3_MICDIFF_OFFSET 0 + +#define REG_CR4_ADC_HPF_OFFSET 7 +#define REG_CR4_ADC_RIGHT_ONLY BIT(0) + +#define REG_CCR1_CRYSTAL_MASK GENMASK(3, 0) + +#define REG_CCR2_DAC_FREQ_MASK GENMASK(7, 4) +#define REG_CCR2_ADC_FREQ_MASK GENMASK(3, 0) + +#define REG_PMR1_SB BIT(7) +#define REG_PMR1_SB_SLEEP BIT(6) +#define REG_PMR1_SB_AIP_OFFSET 5 +#define REG_PMR1_SB_LINE_OFFSET 4 +#define REG_PMR1_SB_MIC1_OFFSET 3 +#define REG_PMR1_SB_MIC2_OFFSET 2 +#define REG_PMR1_SB_BYPASS_OFFSET 1 +#define REG_PMR1_SB_MICBIAS_OFFSET 0 + +#define REG_PMR2_SB_ADC_OFFSET 4 +#define REG_PMR2_SB_HP_OFFSET 3 +#define REG_PMR2_SB_BTL_OFFSET 2 +#define REG_PMR2_SB_LOUT_OFFSET 1 +#define REG_PMR2_SB_DAC_OFFSET 0 + +#define REG_ICR_INT_FORM_MASK GENMASK(7, 6) +#define REG_ICR_ALL_MASK GENMASK(5, 0) +#define REG_ICR_JACK_MASK BIT(5) +#define REG_ICR_SCMC_MASK BIT(4) +#define REG_ICR_RUP_MASK BIT(3) +#define REG_ICR_RDO_MASK BIT(2) +#define REG_ICR_GUP_MASK BIT(1) +#define REG_ICR_GDO_MASK BIT(0) + +#define REG_IFR_ALL_MASK GENMASK(5, 0) +#define REG_IFR_JACK BIT(6) +#define REG_IFR_JACK_EVENT BIT(5) +#define REG_IFR_SCMC BIT(4) +#define REG_IFR_RUP BIT(3) +#define REG_IFR_RDO BIT(2) +#define REG_IFR_GUP BIT(1) +#define REG_IFR_GDO BIT(0) + +#define REG_GCR_GAIN_OFFSET 0 +#define REG_GCR_GAIN_MAX 0x1f + +#define REG_GCR_RL BIT(7) + +#define REG_GCR_GIM1_MASK GENMASK(5, 3) +#define REG_GCR_GIM2_MASK GENMASK(2, 0) +#define REG_GCR_GIM_GAIN_MAX 7 + +#define REG_AGC1_EN BIT(7) +#define REG_AGC1_TARGET_MASK GENMASK(5, 2) + +#define REG_AGC2_NG_THR_MASK GENMASK(6, 4) +#define REG_AGC2_HOLD_MASK GENMASK(3, 0) + +#define REG_AGC3_ATK_MASK GENMASK(7, 4) +#define REG_AGC3_DCY_MASK GENMASK(3, 0) + +#define REG_AGC4_AGC_MAX_MASK GENMASK(4, 0) + +#define REG_AGC5_AGC_MIN_MASK GENMASK(4, 0) + +#define REG_MIX1_MIX_REC_MASK GENMASK(7, 6) +#define REG_MIX1_GIMIX_MASK GENMASK(4, 0) + +#define REG_MIX2_DAC_MIX_MASK GENMASK(7, 6) +#define REG_MIX2_GOMIX_MASK GENMASK(4, 0) + +/* codec private data */ +struct jz_codec { + struct device *dev; + struct regmap *regmap; + void __iomem *base; + struct clk *clk; +}; + +static int jz4760_codec_set_bias_level(struct snd_soc_component *codec, + enum snd_soc_bias_level level) +{ + struct jz_codec *jz_codec = snd_soc_component_get_drvdata(codec); + struct regmap *regmap = jz_codec->regmap; + + switch (level) { + case SND_SOC_BIAS_PREPARE: + /* Reset all interrupt flags. */ + regmap_write(regmap, JZ4760_CODEC_REG_IFR, REG_IFR_ALL_MASK); + + regmap_clear_bits(regmap, JZ4760_CODEC_REG_PMR1, REG_PMR1_SB); + msleep(250); + regmap_clear_bits(regmap, JZ4760_CODEC_REG_PMR1, REG_PMR1_SB_SLEEP); + msleep(400); + break; + case SND_SOC_BIAS_STANDBY: + regmap_set_bits(regmap, JZ4760_CODEC_REG_PMR1, REG_PMR1_SB_SLEEP); + regmap_set_bits(regmap, JZ4760_CODEC_REG_PMR1, REG_PMR1_SB); + break; + default: + break; + } + + return 0; +} + +static int jz4760_codec_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *codec = dai->component; + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(codec); + int ret; + + /* + * SYSCLK output from the codec to the AIC is required to keep the + * DMA transfer going during playback when all audible outputs have + * been disabled. + */ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + ret = snd_soc_dapm_force_enable_pin(dapm, "SYSCLK"); + return 0; +} + +static void jz4760_codec_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *codec = dai->component; + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(codec); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + snd_soc_dapm_disable_pin(dapm, "SYSCLK"); +} + + +static int jz4760_codec_pcm_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + struct snd_soc_component *codec = dai->component; + int ret = 0; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK) + snd_soc_component_force_bias_level(codec, SND_SOC_BIAS_ON); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + /* do nothing */ + break; + default: + ret = -EINVAL; + } + + return ret; +} + +static int jz4760_codec_mute_stream(struct snd_soc_dai *dai, int mute, int direction) +{ + struct snd_soc_component *codec = dai->component; + struct jz_codec *jz_codec = snd_soc_component_get_drvdata(codec); + unsigned int gain_bit = mute ? REG_IFR_GDO : REG_IFR_GUP; + unsigned int val, reg; + int change, err; + + change = snd_soc_component_update_bits(codec, JZ4760_CODEC_REG_CR2, + REG_CR2_DAC_MUTE, + mute ? REG_CR2_DAC_MUTE : 0); + if (change == 1) { + regmap_read(jz_codec->regmap, JZ4760_CODEC_REG_PMR2, &val); + + if (val & BIT(REG_PMR2_SB_DAC_OFFSET)) + return 1; + + err = regmap_read_poll_timeout(jz_codec->regmap, + JZ4760_CODEC_REG_IFR, + val, val & gain_bit, + 1000, 1 * USEC_PER_SEC); + if (err) { + dev_err(jz_codec->dev, + "Timeout while setting digital mute: %d", err); + return err; + } + + /* clear GUP/GDO flag */ + regmap_write(jz_codec->regmap, JZ4760_CODEC_REG_IFR, gain_bit); + } + + regmap_read(jz_codec->regmap, JZ4760_CODEC_REG_CR2, &reg); + + return 0; +} + +/* unit: 0.01dB */ +static const DECLARE_TLV_DB_MINMAX_MUTE(dac_tlv, -3100, 100); +static const DECLARE_TLV_DB_SCALE(adc_tlv, 0, 100, 0); +static const DECLARE_TLV_DB_MINMAX(out_tlv, -2500, 100); +static const DECLARE_TLV_DB_SCALE(linein_tlv, -2500, 100, 0); + +/* Unconditional controls. */ +static const struct snd_kcontrol_new jz4760_codec_snd_controls[] = { + /* record gain control */ + SOC_DOUBLE_R_TLV("PCM Capture Volume", + JZ4760_CODEC_REG_GCR9, JZ4760_CODEC_REG_GCR8, + REG_GCR_GAIN_OFFSET, REG_GCR_GAIN_MAX, 0, adc_tlv), + + SOC_DOUBLE_R_TLV("Line In Bypass Playback Volume", + JZ4760_CODEC_REG_GCR4, JZ4760_CODEC_REG_GCR3, + REG_GCR_GAIN_OFFSET, REG_GCR_GAIN_MAX, 1, linein_tlv), + + SOC_SINGLE("High-Pass Filter Capture Switch", + JZ4760_CODEC_REG_CR4, + REG_CR4_ADC_HPF_OFFSET, 1, 0), +}; + +static const struct snd_kcontrol_new jz4760_codec_pcm_playback_controls[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Volume", + .info = snd_soc_info_volsw, + .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ + | SNDRV_CTL_ELEM_ACCESS_READWRITE, + .tlv.p = dac_tlv, + .get = snd_soc_dapm_get_volsw, + .put = snd_soc_dapm_put_volsw, + .private_value = SOC_DOUBLE_R_VALUE(JZ4760_CODEC_REG_GCR6, + JZ4760_CODEC_REG_GCR5, + REG_GCR_GAIN_OFFSET, + REG_GCR_GAIN_MAX, 1), + }, +}; + +static const struct snd_kcontrol_new jz4760_codec_hp_playback_controls[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Volume", + .info = snd_soc_info_volsw, + .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ + | SNDRV_CTL_ELEM_ACCESS_READWRITE, + .tlv.p = out_tlv, + .get = snd_soc_dapm_get_volsw, + .put = snd_soc_dapm_put_volsw, + .private_value = SOC_DOUBLE_R_VALUE(JZ4760_CODEC_REG_GCR2, + JZ4760_CODEC_REG_GCR1, + REG_GCR_GAIN_OFFSET, + REG_GCR_GAIN_MAX, 1), + }, +}; + +static int hpout_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *codec = snd_soc_dapm_to_component(w->dapm); + struct jz_codec *jz_codec = snd_soc_component_get_drvdata(codec); + unsigned int val; + int err; + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + /* unmute HP */ + regmap_clear_bits(jz_codec->regmap, JZ4760_CODEC_REG_CR1, + REG_CR1_HP_MUTE); + break; + + case SND_SOC_DAPM_POST_PMU: + /* wait for ramp-up complete (RUP) */ + err = regmap_read_poll_timeout(jz_codec->regmap, + JZ4760_CODEC_REG_IFR, + val, val & REG_IFR_RUP, + 1000, 1 * USEC_PER_SEC); + if (err) { + dev_err(jz_codec->dev, "RUP timeout: %d", err); + return err; + } + + /* clear RUP flag */ + regmap_set_bits(jz_codec->regmap, JZ4760_CODEC_REG_IFR, + REG_IFR_RUP); + + break; + + case SND_SOC_DAPM_POST_PMD: + /* mute HP */ + regmap_set_bits(jz_codec->regmap, JZ4760_CODEC_REG_CR1, + REG_CR1_HP_MUTE); + + err = regmap_read_poll_timeout(jz_codec->regmap, + JZ4760_CODEC_REG_IFR, + val, val & REG_IFR_RDO, + 1000, 1 * USEC_PER_SEC); + if (err) { + dev_err(jz_codec->dev, "RDO timeout: %d", err); + return err; + } + + /* clear RDO flag */ + regmap_set_bits(jz_codec->regmap, JZ4760_CODEC_REG_IFR, + REG_IFR_RDO); + + break; + } + + return 0; +} + +static const char * const jz4760_codec_hp_texts[] = { + "PCM", "Line In", "Mic 1", "Mic 2" +}; + +static const unsigned int jz4760_codec_hp_values[] = { 3, 2, 0, 1 }; + +static SOC_VALUE_ENUM_SINGLE_DECL(jz4760_codec_hp_enum, + JZ4760_CODEC_REG_CR1, + REG_CR1_OUTSEL_OFFSET, + REG_CR1_OUTSEL_MASK >> REG_CR1_OUTSEL_OFFSET, + jz4760_codec_hp_texts, + jz4760_codec_hp_values); +static const struct snd_kcontrol_new jz4760_codec_hp_source = + SOC_DAPM_ENUM("Route", jz4760_codec_hp_enum); + +static const char * const jz4760_codec_cap_texts[] = { + "Line In", "Mic 1", "Mic 2" +}; + +static const unsigned int jz4760_codec_cap_values[] = { 2, 0, 1 }; + +static SOC_VALUE_ENUM_SINGLE_DECL(jz4760_codec_cap_enum, + JZ4760_CODEC_REG_CR3, + REG_CR3_ADC_INSEL_OFFSET, + REG_CR3_ADC_INSEL_MASK >> REG_CR3_ADC_INSEL_OFFSET, + jz4760_codec_cap_texts, + jz4760_codec_cap_values); +static const struct snd_kcontrol_new jz4760_codec_cap_source = + SOC_DAPM_ENUM("Route", jz4760_codec_cap_enum); + +static const struct snd_kcontrol_new jz4760_codec_mic_controls[] = { + SOC_DAPM_SINGLE("Stereo Capture Switch", JZ4760_CODEC_REG_CR3, + REG_CR3_MICSTEREO_OFFSET, 1, 0), +}; + +static const struct snd_kcontrol_new jz4760_codec_line_out_switch = + SOC_DAPM_SINGLE("Switch", JZ4760_CODEC_REG_CR1, + REG_CR1_LO_MUTE_OFFSET, 0, 0); +static const struct snd_kcontrol_new jz4760_codec_btl_out_switch = + SOC_DAPM_SINGLE("Switch", JZ4760_CODEC_REG_CR1, + REG_CR1_BTL_MUTE_OFFSET, 0, 0); + +static const struct snd_soc_dapm_widget jz4760_codec_dapm_widgets[] = { + SND_SOC_DAPM_PGA_E("HP Out", JZ4760_CODEC_REG_PMR2, + REG_PMR2_SB_HP_OFFSET, 1, NULL, 0, hpout_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | + SND_SOC_DAPM_POST_PMD), + + SND_SOC_DAPM_SWITCH("Line Out", JZ4760_CODEC_REG_PMR2, + REG_PMR2_SB_LOUT_OFFSET, 1, + &jz4760_codec_line_out_switch), + + SND_SOC_DAPM_SWITCH("BTL Out", JZ4760_CODEC_REG_PMR2, + REG_PMR2_SB_BTL_OFFSET, 1, + &jz4760_codec_btl_out_switch), + + SND_SOC_DAPM_PGA("Line In", JZ4760_CODEC_REG_PMR1, + REG_PMR1_SB_LINE_OFFSET, 1, NULL, 0), + + SND_SOC_DAPM_MUX("Headphones Source", SND_SOC_NOPM, 0, 0, + &jz4760_codec_hp_source), + + SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0, + &jz4760_codec_cap_source), + + SND_SOC_DAPM_PGA("Mic 1", JZ4760_CODEC_REG_PMR1, + REG_PMR1_SB_MIC1_OFFSET, 1, NULL, 0), + + SND_SOC_DAPM_PGA("Mic 2", JZ4760_CODEC_REG_PMR1, + REG_PMR1_SB_MIC2_OFFSET, 1, NULL, 0), + + SND_SOC_DAPM_PGA("Mic Diff", JZ4760_CODEC_REG_CR3, + REG_CR3_MICDIFF_OFFSET, 0, NULL, 0), + + SND_SOC_DAPM_MIXER("Mic", SND_SOC_NOPM, 0, 0, + jz4760_codec_mic_controls, + ARRAY_SIZE(jz4760_codec_mic_controls)), + + SND_SOC_DAPM_PGA("Line In Bypass", JZ4760_CODEC_REG_PMR1, + REG_PMR1_SB_BYPASS_OFFSET, 1, NULL, 0), + + SND_SOC_DAPM_ADC("ADC", "Capture", JZ4760_CODEC_REG_PMR2, + REG_PMR2_SB_ADC_OFFSET, 1), + + SND_SOC_DAPM_DAC("DAC", "Playback", JZ4760_CODEC_REG_PMR2, + REG_PMR2_SB_DAC_OFFSET, 1), + + SND_SOC_DAPM_MIXER("PCM Playback", SND_SOC_NOPM, 0, 0, + jz4760_codec_pcm_playback_controls, + ARRAY_SIZE(jz4760_codec_pcm_playback_controls)), + + SND_SOC_DAPM_MIXER("Headphones Playback", SND_SOC_NOPM, 0, 0, + jz4760_codec_hp_playback_controls, + ARRAY_SIZE(jz4760_codec_hp_playback_controls)), + + SND_SOC_DAPM_SUPPLY("MICBIAS", JZ4760_CODEC_REG_PMR1, + REG_PMR1_SB_MICBIAS_OFFSET, 1, NULL, 0), + + SND_SOC_DAPM_INPUT("MIC1P"), + SND_SOC_DAPM_INPUT("MIC1N"), + SND_SOC_DAPM_INPUT("MIC2P"), + SND_SOC_DAPM_INPUT("MIC2N"), + + SND_SOC_DAPM_INPUT("LLINEIN"), + SND_SOC_DAPM_INPUT("RLINEIN"), + + SND_SOC_DAPM_OUTPUT("LHPOUT"), + SND_SOC_DAPM_OUTPUT("RHPOUT"), + + SND_SOC_DAPM_OUTPUT("LOUT"), + SND_SOC_DAPM_OUTPUT("ROUT"), + + SND_SOC_DAPM_OUTPUT("BTLP"), + SND_SOC_DAPM_OUTPUT("BTLN"), + + SND_SOC_DAPM_OUTPUT("SYSCLK"), +}; + +/* Unconditional routes. */ +static const struct snd_soc_dapm_route jz4760_codec_dapm_routes[] = { + { "Mic 1", NULL, "MIC1P" }, + { "Mic Diff", NULL, "MIC1N" }, + { "Mic 1", NULL, "Mic Diff" }, + { "Mic 2", NULL, "MIC2P" }, + { "Mic Diff", NULL, "MIC2N" }, + { "Mic 2", NULL, "Mic Diff" }, + + { "Line In", NULL, "LLINEIN" }, + { "Line In", NULL, "RLINEIN" }, + + { "Mic", "Stereo Capture Switch", "Mic 1" }, + { "Mic", "Stereo Capture Switch", "Mic 2" }, + { "Headphones Source", "Mic 1", "Mic" }, + { "Headphones Source", "Mic 2", "Mic" }, + { "Capture Source", "Mic 1", "Mic" }, + { "Capture Source", "Mic 2", "Mic" }, + + { "Capture Source", "Line In", "Line In" }, + { "Capture Source", "Mic 1", "Mic 1" }, + { "Capture Source", "Mic 2", "Mic 2" }, + { "ADC", NULL, "Capture Source" }, + + { "Line In Bypass", NULL, "Line In" }, + + { "Headphones Source", "Mic 1", "Mic 1" }, + { "Headphones Source", "Mic 2", "Mic 2" }, + { "Headphones Source", "Line In", "Line In Bypass" }, + { "Headphones Source", "PCM", "Headphones Playback" }, + { "HP Out", NULL, "Headphones Source" }, + + { "LHPOUT", NULL, "HP Out" }, + { "RHPOUT", NULL, "HP Out" }, + { "Line Out", "Switch", "HP Out" }, + + { "LOUT", NULL, "Line Out" }, + { "ROUT", NULL, "Line Out" }, + { "BTL Out", "Switch", "Line Out" }, + + { "BTLP", NULL, "BTL Out"}, + { "BTLN", NULL, "BTL Out"}, + + { "PCM Playback", "Volume", "DAC" }, + { "Headphones Playback", "Volume", "PCM Playback" }, + + { "SYSCLK", NULL, "DAC" }, +}; + +static void jz4760_codec_codec_init_regs(struct snd_soc_component *codec) +{ + struct jz_codec *jz_codec = snd_soc_component_get_drvdata(codec); + struct regmap *regmap = jz_codec->regmap; + + /* Collect updates for later sending. */ + regcache_cache_only(regmap, true); + + /* default Amp output to PCM */ + regmap_set_bits(regmap, JZ4760_CODEC_REG_CR1, REG_CR1_OUTSEL_MASK); + + /* Disable stereo mic */ + regmap_clear_bits(regmap, JZ4760_CODEC_REG_CR3, + BIT(REG_CR3_MICSTEREO_OFFSET)); + + /* Set mic 1 as default source for ADC */ + regmap_clear_bits(regmap, JZ4760_CODEC_REG_CR3, + REG_CR3_ADC_INSEL_MASK); + + /* ADC/DAC: serial + i2s */ + regmap_set_bits(regmap, JZ4760_CODEC_REG_AICR, + REG_AICR_ADC_SERIAL | REG_AICR_ADC_I2S | + REG_AICR_DAC_SERIAL | REG_AICR_DAC_I2S); + + /* The generated IRQ is a high level */ + regmap_clear_bits(regmap, JZ4760_CODEC_REG_ICR, REG_ICR_INT_FORM_MASK); + regmap_update_bits(regmap, JZ4760_CODEC_REG_ICR, REG_ICR_ALL_MASK, + REG_ICR_JACK_MASK | REG_ICR_RUP_MASK | + REG_ICR_RDO_MASK | REG_ICR_GUP_MASK | + REG_ICR_GDO_MASK); + + /* 12M oscillator */ + regmap_clear_bits(regmap, JZ4760_CODEC_REG_CCR1, REG_CCR1_CRYSTAL_MASK); + + /* 0: 16ohm/220uF, 1: 10kohm/1uF */ + regmap_clear_bits(regmap, JZ4760_CODEC_REG_CR1, REG_CR1_HP_LOAD); + + /* default to NOMAD */ + regmap_set_bits(jz_codec->regmap, JZ4760_CODEC_REG_CR2, + REG_CR2_DAC_NOMAD); + + /* disable automatic gain */ + regmap_clear_bits(regmap, JZ4760_CODEC_REG_AGC1, REG_AGC1_EN); + + /* Independent L/R DAC gain control */ + regmap_clear_bits(regmap, JZ4760_CODEC_REG_GCR5, + REG_GCR_RL); + + /* Send collected updates. */ + regcache_cache_only(regmap, false); + regcache_sync(regmap); +} + +static int jz4760_codec_codec_probe(struct snd_soc_component *codec) +{ + struct jz_codec *jz_codec = snd_soc_component_get_drvdata(codec); + + clk_prepare_enable(jz_codec->clk); + + jz4760_codec_codec_init_regs(codec); + + return 0; +} + +static void jz4760_codec_codec_remove(struct snd_soc_component *codec) +{ + struct jz_codec *jz_codec = snd_soc_component_get_drvdata(codec); + + clk_disable_unprepare(jz_codec->clk); +} + +static const struct snd_soc_component_driver jz4760_codec_soc_codec_dev = { + .probe = jz4760_codec_codec_probe, + .remove = jz4760_codec_codec_remove, + .set_bias_level = jz4760_codec_set_bias_level, + .controls = jz4760_codec_snd_controls, + .num_controls = ARRAY_SIZE(jz4760_codec_snd_controls), + .dapm_widgets = jz4760_codec_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(jz4760_codec_dapm_widgets), + .dapm_routes = jz4760_codec_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(jz4760_codec_dapm_routes), + .suspend_bias_off = 1, + .use_pmdown_time = 1, +}; + +static const unsigned int jz4760_codec_sample_rates[] = { + 96000, 48000, 44100, 32000, + 24000, 22050, 16000, 12000, + 11025, 9600, 8000, +}; + +static int jz4760_codec_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct jz_codec *codec = snd_soc_component_get_drvdata(dai->component); + unsigned int rate, bit_width; + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + bit_width = 0; + break; + case SNDRV_PCM_FORMAT_S18_3LE: + bit_width = 1; + break; + case SNDRV_PCM_FORMAT_S20_3LE: + bit_width = 2; + break; + case SNDRV_PCM_FORMAT_S24_3LE: + bit_width = 3; + break; + default: + return -EINVAL; + } + + for (rate = 0; rate < ARRAY_SIZE(jz4760_codec_sample_rates); rate++) { + if (jz4760_codec_sample_rates[rate] == params_rate(params)) + break; + } + + if (rate == ARRAY_SIZE(jz4760_codec_sample_rates)) + return -EINVAL; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + regmap_update_bits(codec->regmap, JZ4760_CODEC_REG_AICR, + REG_AICR_DAC_ADWL_MASK, + FIELD_PREP(REG_AICR_DAC_ADWL_MASK, bit_width)); + regmap_update_bits(codec->regmap, JZ4760_CODEC_REG_CCR2, + REG_CCR2_DAC_FREQ_MASK, + FIELD_PREP(REG_CCR2_DAC_FREQ_MASK, rate)); + } else { + regmap_update_bits(codec->regmap, JZ4760_CODEC_REG_AICR, + REG_AICR_ADC_ADWL_MASK, + FIELD_PREP(REG_AICR_ADC_ADWL_MASK, bit_width)); + regmap_update_bits(codec->regmap, JZ4760_CODEC_REG_CCR2, + REG_CCR2_ADC_FREQ_MASK, + FIELD_PREP(REG_CCR2_ADC_FREQ_MASK, rate)); + } + + return 0; +} + +static const struct snd_soc_dai_ops jz4760_codec_dai_ops = { + .startup = jz4760_codec_startup, + .shutdown = jz4760_codec_shutdown, + .hw_params = jz4760_codec_hw_params, + .trigger = jz4760_codec_pcm_trigger, + .mute_stream = jz4760_codec_mute_stream, + .no_capture_mute = 1, +}; + +#define JZ_CODEC_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S18_3LE | \ + SNDRV_PCM_FMTBIT_S20_3LE | \ + SNDRV_PCM_FMTBIT_S24_3LE) + +static struct snd_soc_dai_driver jz4760_codec_dai = { + .name = "jz4760-hifi", + .playback = { + .stream_name = "Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = JZ_CODEC_FORMATS, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = JZ_CODEC_FORMATS, + }, + .ops = &jz4760_codec_dai_ops, +}; + +static bool jz4760_codec_volatile(struct device *dev, unsigned int reg) +{ + return reg == JZ4760_CODEC_REG_SR || reg == JZ4760_CODEC_REG_IFR; +} + +static bool jz4760_codec_writeable(struct device *dev, unsigned int reg) +{ + switch (reg) { + case JZ4760_CODEC_REG_SR: + return false; + default: + return true; + } +} + +static int jz4760_codec_io_wait(struct jz_codec *codec) +{ + u32 reg; + + return readl_poll_timeout(codec->base + ICDC_RGADW_OFFSET, reg, + !(reg & ICDC_RGADW_RGWR), + 1000, 1 * USEC_PER_SEC); +} + +static int jz4760_codec_reg_read(void *context, unsigned int reg, + unsigned int *val) +{ + struct jz_codec *codec = context; + unsigned int i; + u32 tmp; + int ret; + + ret = jz4760_codec_io_wait(codec); + if (ret) + return ret; + + tmp = readl(codec->base + ICDC_RGADW_OFFSET); + tmp &= ~ICDC_RGADW_RGADDR_MASK; + tmp |= FIELD_PREP(ICDC_RGADW_RGADDR_MASK, reg); + writel(tmp, codec->base + ICDC_RGADW_OFFSET); + + /* wait 6+ cycles */ + for (i = 0; i < 6; i++) + *val = readl(codec->base + ICDC_RGDATA_OFFSET) & + ICDC_RGDATA_RGDOUT_MASK; + + return 0; +} + +static int jz4760_codec_reg_write(void *context, unsigned int reg, + unsigned int val) +{ + struct jz_codec *codec = context; + int ret; + + ret = jz4760_codec_io_wait(codec); + if (ret) + return ret; + + writel(ICDC_RGADW_RGWR | FIELD_PREP(ICDC_RGADW_RGADDR_MASK, reg) | val, + codec->base + ICDC_RGADW_OFFSET); + + ret = jz4760_codec_io_wait(codec); + if (ret) + return ret; + + return 0; +} + +static const u8 jz4760_codec_reg_defaults[] = { + 0x00, 0xFC, 0x1B, 0x20, 0x00, 0x80, 0x00, 0x00, + 0xFF, 0x1F, 0x3F, 0x00, 0x06, 0x06, 0x06, 0x06, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x34, 0x07, 0x44, + 0x1F, 0x00, 0x00, 0x00 +}; + +static struct regmap_config jz4760_codec_regmap_config = { + .reg_bits = 7, + .val_bits = 8, + + .max_register = JZ4760_CODEC_REG_MIX2, + .volatile_reg = jz4760_codec_volatile, + .writeable_reg = jz4760_codec_writeable, + + .reg_read = jz4760_codec_reg_read, + .reg_write = jz4760_codec_reg_write, + + .reg_defaults_raw = jz4760_codec_reg_defaults, + .num_reg_defaults_raw = ARRAY_SIZE(jz4760_codec_reg_defaults), + .cache_type = REGCACHE_FLAT, +}; + +static int jz4760_codec_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct jz_codec *codec; + int ret; + + codec = devm_kzalloc(dev, sizeof(*codec), GFP_KERNEL); + if (!codec) + return -ENOMEM; + + codec->dev = dev; + + codec->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(codec->base)) { + ret = PTR_ERR(codec->base); + dev_err(dev, "Failed to ioremap mmio memory: %d\n", ret); + return ret; + } + + codec->regmap = devm_regmap_init(dev, NULL, codec, + &jz4760_codec_regmap_config); + if (IS_ERR(codec->regmap)) + return PTR_ERR(codec->regmap); + + codec->clk = devm_clk_get(dev, "aic"); + if (IS_ERR(codec->clk)) + return PTR_ERR(codec->clk); + + platform_set_drvdata(pdev, codec); + + ret = devm_snd_soc_register_component(dev, &jz4760_codec_soc_codec_dev, + &jz4760_codec_dai, 1); + if (ret) { + dev_err(dev, "Failed to register codec: %d\n", ret); + return ret; + } + + return 0; +} + +static const struct of_device_id jz4760_codec_of_matches[] = { + { .compatible = "ingenic,jz4760-codec", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, jz4760_codec_of_matches); + +static struct platform_driver jz4760_codec_driver = { + .probe = jz4760_codec_probe, + .driver = { + .name = "jz4760-codec", + .of_match_table = jz4760_codec_of_matches, + }, +}; +module_platform_driver(jz4760_codec_driver); + +MODULE_DESCRIPTION("JZ4760 SoC internal codec driver"); +MODULE_AUTHOR("Christophe Branchereau cbranchereau@gmail.com"); +MODULE_AUTHOR("Paul Cercueil paul@crapouillou.net"); +MODULE_LICENSE("GPL v2");